Research Topics
Genomes and Genes
| Hitoshi TsudaSummaryAffiliation: National Defense Medical College Country: Japan Publications
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Detail Information
Publications
Concordance in judgments among c-erbB-2 (HER2/neu) overexpression detected by two immunohistochemical tests and gene amplification detected by Southern blot hybridization in breast carcinomaH Tsuda
Pathology Division, National Cancer Center Research Institute and Hospital, Tokyo, Japan
Pathol Int 51:26-32. 2001..Further examination would be necessary to decide the significance of breast cancers of HercepTestTM score 2...
Reproducible immunohistochemical criteria based on multiple raters' judgments for expression of thymidine phosphorylase in breast cancer tissueHitoshi Tsuda
Department of Pathology II, National Defense Medical College, Tokorozawa, Saitama, Japan
Breast Cancer Res Treat 86:215-23. 2004..To accurately evaluate the TP status in breast cancer tissue, three or more raters are needed and the majority system and total scoring system appear appropriate...
Reproducible and clinically meaningful differential diagnosis is possible between lobular endocervical glandular hyperplasia and 'adenoma malignum' based on common histopathological criteriaHitoshi Tsuda
Department of Pathology II, National Defense Medical College, Tokorozawa, Japan
Pathol Int 55:412-8. 2005..01). It is clearly shown that reproducible differential diagnosis is possible between LEGH, LEGH with AIS, and MDA and that such a differentiation is clinically meaningful...
Interobserver variation in the diagnosis of adenoma malignum (minimal deviation adenocarcinoma) of the uterine cervixHitoshi Tsuda
Department of Pathology II, National Defense Medical College, Tokorozawa, Saitama, Japan
Pathol Int 53:440-9. 2003....
Correlation of KIT and EGFR overexpression with invasive ductal breast carcinoma of the solid-tubular subtype, nuclear grade 3, and mesenchymal or myoepithelial differentiationHitoshi Tsuda
Department of Pathology II, National Defense Medical College, 3 2 Namiki, Tokorozawa, Saitama 359 8513
Cancer Sci 96:48-53. 2005..KIT and EGFR appeared to be indicators of high-grade breast carcinoma groups that often contain the carcinomas with mesenchymal and/or myoepithelial differentiation, which are distinct from the group with c-erbB-2 overexpression...
Correlation of DNA hypomethylation at pericentromeric heterochromatin regions of chromosomes 16 and 1 with histological features and chromosomal abnormalities of human breast carcinomasHitoshi Tsuda
Pathology Division, National Cancer Center Research Institute and Hospital, Tokyo, Japan
Am J Pathol 161:859-66. 2002..On the contrary, chromosome instability induced by mechanisms other than DNA hypomethylation in heterochromatin regions might cause the formation of der(16)t(1;16)/der(1;16) and less aggressive breast carcinomas...
Different pattern of loss of heterozygosity among endocervical-type adenocarcinoma, endometrioid-type adenocarcinoma and adenoma malignum of the uterine cervixHitoshi Tsuda
Pathology Division, National Cancer Research Institute and Hospital, Tokyo, Japan
Int J Cancer 98:713-7. 2002..Chromosomal arms that are prone to show LOH appeared to differ between the 2 types of cervical adenocarcinoma. We could suggest that "pure" adenoma malignum is of clonal and neoplastic nature in view of the detection of LOH...
Pattern of chromosome 16q loss differs between an atypical proliferative lesion and an intraductal or invasive ductal carcinoma occurring subsequently in the same area of the breastH Tsuda
Pathology Division, National Cancer Center Research Institute, Tokyo, Japan
Mod Pathol 14:382-8. 2001..Although atypical proliferative lesions were frequently confirmed to be of clonal nature with LOH on 16q, these lesions and carcinomas were considered to be clones, probably originated from a field with these clones...
Detection of HER-2/neu (c-erb B-2) DNA amplification in primary breast carcinoma. Interobserver reproducibility and correlation with immunohistochemical HER-2 overexpressionH Tsuda
Department of Pathology II, National Defense Medical College, Saitama, Japan
Cancer 92:2965-74. 2001..Fluorescent in situ hybridization (FISH) has been shown to be one of the most reliable methods with which to estimate the status of the HER-2/neu (or c-erb B-2) oncogene at the DNA level...
Frequent inactivation of a putative tumor suppressor, angiopoietin-like protein 2, in ovarian cancerRyoko Kikuchi
Department of Molecular Cytogenetics, Medical Research Institute and School of Biomedical Science, Tokyo Medical and Dental University, Tokyo, Japan
Cancer Res 68:5067-75. 2008..These results suggest that, at least partly, epigenetic silencing by hypermethylation of the ANGPTL2 promoter leads to a loss of ANGPTL2 function, which may be a factor in the carcinogenesis of OC in a stage-dependent manner...
c-MET/phospho-MET protein expression and MET gene copy number in non-small cell lung carcinomasKoji Tsuta
Division of Pathology and Clinical Laboratories, National Cancer Center Hospital, Tokyo, Japan
J Thorac Oncol 7:331-9. 2012..The aim of this study was to examine the correlations between c-MET/phospho-MET expression as well as MET gene copy number alterations and overall survival (OS) in non-small cell lung carcinomas (NSCLCs)...
Utility of 18F-fluoro-deoxyglucose emission tomography/computed tomography fusion imaging (18F-FDG PET/CT) in combination with ultrasonography for axillary staging in primary breast cancerShigeto Ueda
Department of Surgery, National Defense Medical College, 3 2 Namiki, Tokorozawa, Saitama 359 8513, Japan
BMC Cancer 8:165. 2008....
Potential crosstalk between insulin-like growth factor receptor type 1 and epidermal growth factor receptor in progression and metastasis of pancreatic cancerShigeto Ueda
Department of Surgery I, National Defense Medical College, Tokorozawa, Saitama, Japan
Mod Pathol 19:788-96. 2006..Crosstalk between differently localized IGF1R and EGFR might play a role in determining the biological aggressiveness of pancreatic cancer, although their cellular localization may often alter during the process of metastasis...
Actinin-4 gene amplification in ovarian cancer: a candidate oncogene associated with poor patient prognosis and tumor chemoresistanceSohei Yamamoto
Department of Basic Pathology, National Defense Medical College, Tokorozawa, Japan
Mod Pathol 22:499-507. 2009..The actinin-4 gene may be a target of the 19q amplicon, acting as a candidate oncogene, and serve as a predictor of poor outcome and tumor chemoresistance in patients with advanced-stage ovarian cancers...
Clinicopathological and prognostic relevance of uptake level using 18F-fluorodeoxyglucose positron emission tomography/computed tomography fusion imaging (18F-FDG PET/CT) in primary breast cancerShigeto Ueda
Department of Basic Pathology, National Defense Medical College, 3 2 Namiki, Tokorozawa, Saitama 359 8513, Japan
Jpn J Clin Oncol 38:250-8. 2008..Using integrated 18F-fluorodeoxyglucose positron emission tomography/computed tomography fusion imaging (18F-FDG PET/CT), the clinical significance of 18F-FDG uptake was evaluated in patients with primary breast cancer...
The impact of complete surgical staging upon survival in early-stage ovarian clear cell carcinoma: a multi-institutional retrospective studyMasashi Takano
Department of Obstetrics and Gynecology, National Defense Medical College, Tokorozawa, Saitama, Japan
Int J Gynecol Cancer 19:1353-7. 2009..More effective treatment modality was warranted, especially for CCC cases positive for malignant peritoneal cytology...
Progression-free survival and overall survival of patients with clear cell carcinoma of the ovary treated with paclitaxel-carboplatin or irinotecan-cisplatin: retrospective analysisMasashi Takano
Department of Obstetrics and Gynecology, National Defense Medical College, Namiki 3 2, Tokorozawa, Saitama, 359 8513, Japan
Int J Clin Oncol 12:256-60. 2007..Our aim was to compare progression-free survival (PFS) between patients treated with irinotecan hydrochloride and cisplatin (CPT-P) and those with treated with paclitaxel and carboplatin (TC)...
ACTN4 gene amplification and actinin-4 protein overexpression drive tumour development and histological progression in a high-grade subset of ovarian clear-cell adenocarcinomasSohei Yamamoto
Department of Basic Pathology, National Defense Medical College, Saitama, Japan
Histopathology 60:1073-83. 2012..2, enhances cell motility by bundling the actin cytoskeleton. We assessed how ACTN4/actinin-4 alterations contribute to the tumorigenesis of ovarian clear-cell adenocarcinomas (CCAs)...
Loss of ARID1A protein expression occurs as an early event in ovarian clear-cell carcinoma development and frequently coexists with PIK3CA mutationsSohei Yamamoto
Department of Basic Pathology, National Defense Medical College, Tokorozawa, Japan
Mod Pathol 25:615-24. 2012....
Accumulative copy number increase of MET drives tumor development and histological progression in a subset of ovarian clear-cell adenocarcinomasSohei Yamamoto
Department of Basic Pathology, National Defense Medical College, Tokorozawa, Japan
Mod Pathol 25:122-30. 2012....
Analysis of sentinel node involvement in gastric cancerDaisaku Morita
Department of Basic Pathology, National Defense Medical College, Tokorozawa, Saitama, Japan
Clin Gastroenterol Hepatol 5:1046-52. 2007..Because sentinel nodes (SNs) to gastric cancer exist but they have not been well-described, we attempted to validate the SN concept at the micrometastasis level...
Less impact of adjuvant chemotherapy for stage I clear cell carcinoma of the ovary: a retrospective Japan Clear Cell Carcinoma StudyMasashi Takano
Department of Obstetrics and Gynecology, National Defense Medical College, Tokorozawa, Saitama, Japan
Int J Gynecol Cancer 20:1506-10. 2010..However, CCC often showed chemo-resistant phenotype, and the effect of adjuvant chemotherapy still remained uncertain...
Association of double-positive FOXA1 and FOXP1 immunoreactivities with favorable prognosis of tamoxifen-treated breast cancer patientsNobuhiro Ijichi
Division of Gene Regulation and Signal Transduction, Research Center for Genomic Medicine, Saitama Medical University, Saitama, Japan
Horm Cancer 3:147-59. 2012....
Early metabolic response to neoadjuvant letrozole, measured by FDG PET/CT, is correlated with a decrease in the Ki67 labeling index in patients with hormone receptor-positive primary breast cancer: a pilot studyShigeto Ueda
Department of Surgery, National Defense Medical College, 3 2 Namiki, Tokorozawa, Saitama, 359 8513, Japan
Breast Cancer 18:299-308. 2011....
Alternative tyrosine phosphorylation of signaling kinases according to hormone receptor status in breast cancer overexpressing the insulin-like growth factor receptor type 1Shigeto Ueda
Department of Surgery I, National Defense Medical College, 3 2 Namiki, Tokorozawa, Saitama 359 8513, Japan
Cancer Sci 97:597-604. 2006..Taken together, these findings suggest that IGF1R overexpression might activate pERK1/2 and pAKT in hormone receptor-positive breast cancer, but activate only pAKT in hormone receptor-negative breast cancer...
Expression of centromere protein F (CENP-F) associated with higher FDG uptake on PET/CT, detected by cDNA microarray, predicts high-risk patients with primary breast cancerShigeto Ueda
Department of Basic Pathology, National Defense Medical College, 3 2 Namiki, Tokorozawa, Saitama 359 8513, Japan
BMC Cancer 8:384. 2008..The purpose of this study is to identify specific molecules upregulated in primary breast cancers with a high SUV and to examine their clinical significance...
Usefulness and limitation of multiple endoscopic biopsy sampling for epidermal growth factor receptor and c-erbB-2 testing in patients with gastric adenocarcinomaMikihiko Kimura
Department of Pathology II, National Defense Medical College, 3-2 Namiki, Tokorozawa, Saitama 359-8513, Japan
Jpn J Clin Oncol 35:324-31. 2005..On the other hand, to assess the EGFR status accurately, the use of surgically resected samples appeared to be more reliable than the use of multiple endoscopic biopsy samples...
High-level Skp2 expression in pancreatic ductal adenocarcinoma: correlation with the extent of lymph node metastasis, higher histological grade, and poorer patient outcomeTakahiro Einama
Department of Surgery I, National Defense Medical College, Tokorozawa, Japan
Pancreas 32:376-81. 2006..0140). CONCLUSIONS: It is suggested that examination of Skp2 expression might be clinically useful for prognostication in patients with pancreatic carcinoma and that Skp2 protein might be a novel therapeutic molecular target...
Clear cell adenocarcinoma associated with clear cell adenofibromatous components: a subgroup of ovarian clear cell adenocarcinoma with distinct clinicopathologic characteristicsSohei Yamamoto
Department of Basic Pathology, National Defense Medical College, 3 2 Namiki, Tokorozawa, Saitama 359 8513, Japan
Am J Surg Pathol 31:999-1006. 2007..These results suggest that CCAF besides endometriosis is associated with the development of CCA, and that the CCAF(+) group may be a distinct subgroup of CCA with less aggressive biologic behavior...
Prognostic significance of mitotic figures in metastatic mammary ductal carcinoma to the lymph nodesTakahiro Hasebe
Pathology Consultation Service, Clinical Trials and Practice Support Division, Center for Cancer Control and Information Services, National Cancer Center, Chuo Ku, 104 0045, Tokyo, Japan
Hum Pathol 42:1823-32. 2011..In conclusion, this study clearly confirmed the excellent outcome predictive power of the number of mitotic figures in metastatic mammary carcinoma to the lymph nodes...
Clinical implications of occult metastases and isolated tumor cells in sentinel and non-sentinel lymph nodes in early breast cancer patients: serial step section analysis with long-term follow-upTakashi Takeshita
Department of Surgery, National Defense Medical College, Tokorozawa, Saitama, Japan
Ann Surg Oncol 19:1160-6. 2012..This study was designed to clarify retrospectively the clinical significance of occult metastases in both sentinel lymph nodes (SLNs) and non-SLNs in patients with early breast cancer...
Expression of platelet-derived growth factors and their receptors in ovarian clear-cell carcinoma and its putative precursorsSohei Yamamoto
Department of Basic Pathology, National Defense Medical College, Tokorozawa, Saitama, Japan
Mod Pathol 21:115-24. 2008....
The proposed factor structure of temperament and personality in Japan: combining traits from TEMPS-A and MPTTsuyoshi Akiyama
Department of Neuropsychiatry, Kanto Medical Center NTT EC, Tokyo, Japan
J Affect Disord 85:93-100. 2005..This research investigates the construct validity of these temperaments through factor analysis...
Clear cell adenocarcinoma with a component of poorly differentiated histology: a poor prognostic subgroup of ovarian clear cell adenocarcinomaSohei Yamamoto
Department of Basic Pathology, National Defense Medical College, 3 2 Namiki, Tokorozawa, Saitama, Japan
Int J Gynecol Pathol 30:431-41. 2011..On the basis of the prognostic impact and interobserver reproducibility, the present binary classification system for CCAs was deemed to be highly superior to the compared conventional histologic grading system...
Cumulative alterations of p27-related cell-cycle regulators in the development of endometriosis-associated ovarian clear cell adenocarcinomaSohei Yamamoto
Department of Basic Pathology, National Defence Medical College, Tokorozawa, Saitama, Japan
Histopathology 56:740-9. 2010..To identify the key cell-cycle dysregulations in the development of endometriosis-associated ovarian clear cell adenocarcinoma (CCA)...
Identification of PAK4 as a putative target gene for amplification within 19q13.12-q13.2 in oral squamous-cell carcinomaAsma Begum
Department of Molecular Cytogenetics, Medical Research Institute and School of Biomedical Science, Tokyo Medical and Dental University, Tokyo, Japan
Cancer Sci 100:1908-16. 2009..These findings reveal that the PAK4 overexpression through amplification or other mechanisms promotes the proliferation and/or survival of OSCC cells, and that PAK4 might be a good diagnostic and/or therapeutic target...
Survival analysis of ovarian clear cell carcinoma confined to the ovary with or without comprehensive surgical stagingMasashi Takano
Department of Obstetrics and Gynecology, National Defense Medical College, Saitama 359 8513, Japan
Oncol Rep 19:1259-64. 2008..03) and that the chemotherapeutic regimen was not a prognostic factor (p=0.43). The present study indicates that we should accomplish complete surgical staging procedures for CCC confined to the ovary...
Comprehensive histologic analysis of ALK-rearranged lung carcinomasAkihiko Yoshida
Pathology and Clinical Laboratory Division, National Cancer Center Hospital, Tokyo, Japan
Am J Surg Pathol 35:1226-34. 2011..ALK-positive cancers commonly showed coexpression of thyroid transcription factor-1 and p63, and its significance is currently unclear...
Aberrant expression of p27(Kip1)-interacting cell-cycle regulatory proteins in ovarian clear cell carcinomas and their precursors with special consideration of two distinct multistage clear cell carcinogenetic pathwaysSohei Yamamoto
Department of Basic Pathology, National Defense Medical College, 3 2 Namiki, Tokorozawa, Saitama, 359 8513, Japan
Virchows Arch 455:413-22. 2009....
Atypical tumor-stromal fibroblasts in invasive ductal carcinomas of the breast treated with neoadjuvant therapyTakahiro Hasebe
Clinical Trials and Practice Support Division, Pathology Consultation Service, Center for Cancer Control and Information Services, National Cancer Center, Tokyo, 104 0045, Japan
Hum Pathol 42:998-1006. 2011....
Important histologic outcome predictors for patients with invasive ductal carcinoma of the breastTakahiro Hasebe
Pathology Consultation Service, Clinical Trials and Practice Support Division, Center for Cancer Control and Information Services, National Cancer Center Hospital, Tokyo, Japan
Am J Surg Pathol 35:1484-97. 2011..These findings strongly suggest that these histologic factors are very useful for accurately predicting the outcomes of patients with invasive ductal carcinoma of the breast...
Well-differentiated liposarcoma with low-grade osteosarcomatous component: an underrecognized variantAkihiko Yoshida
Clinical Laboratory Division, National Cancer Center Hospital, Tokyo, Japan
Am J Surg Pathol 34:1361-6. 2010....
MDM2 and CDK4 immunohistochemical coexpression in high-grade osteosarcoma: correlation with a dedifferentiated subtypeAkihiko Yoshida
Departments of Pathology and Clinical Laboratories, National Cancer Center Research Institute, Tokyo, Japan
Am J Surg Pathol 36:423-31. 2012....
Expression pattern of stromal cell-derived factor-1 chemokine in invasive breast cancer is correlated with estrogen receptor status and patient prognosisTakayuki Kobayashi
Department of Basic Pathology, National Defense Medical College, 3 2 Namiki, Tokorozawa, Saitama, 359 8513, Japan
Breast Cancer Res Treat 123:733-45. 2010..046). SDF-1 status is a significant prognostic factor and may be clinically useful for assigning adjuvant therapy to patients with ER-positive invasive breast cancers...
Prognostic implication of laminin-5 gamma 2 chain expression in the invasive front of colorectal cancers, disclosed by area-specific four-point tissue microarraysEiji Shinto
Department of Pathology II, National Defense Medical College, Tokorozawa, Japan
Lab Invest 85:257-66. 2005..Analysis using area-specific four-point TMAs clearly demonstrated that LN-5gamma2 expression in the invasive front largely influences the degree of clinical aggressiveness of CRC and its tendency to metastasize...
Frequent KIT and epidermal growth factor receptor overexpressions in undifferentiated-type breast carcinomas with 'stem-cell-like' featuresHitoshi Tsuda
Department of Pathology II, National Defense Medical College, 3 2 Namiki, Tokorozawa, Saitama 359 8513, Japan
Cancer Sci 96:333-9. 2005..0002). The undifferentiated-type breast carcinomas appeared to show mammary epithelial stem cell-like features, and they could be identified by KIT and/or EGFR overexpressions...
Gene amplification and protein overexpression of MET are common events in ovarian clear-cell adenocarcinoma: their roles in tumor progression and prognostication of the patientSohei Yamamoto
Department of Basic Pathology, National Defense Medical College, Saitama, Japan
Mod Pathol 24:1146-55. 2011..MET could serve as a biomarker for the prognostication of patients with clear-cell adenocarcinoma and tumor progression, and has potential as a novel therapeutic target for this carcinoma...
Validation of the histologic grading for ovarian clear cell adenocarcinoma: a retrospective multi-institutional study by the Japan Clear Cell Carcinoma Study GroupSohei Yamamoto
Department of Basic Pathology, National Defense Medical College, Ohki Memorial Kikuchi Cancer Clinic for Women, Tokorozawa, Saitama, Japan
Int J Gynecol Pathol 30:129-38. 2011..These results suggest that the 2 tested grading systems have limited value for the prognostication of patients with clear cell adenocarcinoma, and that a more effective grading system for this tumor may be required...
Association between frequent CpG island methylation and HER2 amplification in human breast cancersKotoe Terada
Carcinogenesis Division, National Cancer Center Research Institute, Tokyo, Japan
Carcinogenesis 30:466-71. 2009..001). These showed that frequent methylation had a strong association with HER2 amplification in breast cancers and suggested that frequent methylation can be a determinant of various characteristics in a fraction of human breast cancers...
Clinicopathological analyses of triple negative breast cancer using surveillance data from the Registration Committee of the Japanese Breast Cancer SocietyHirotaka Iwase
Member of the Research Group, Japanese Breast Cancer Society, Tokyo, Japan
Breast Cancer 17:118-24. 2010..To clarify the characteristics of TN breast cancer, surveillance data of the Registration Committee of the Japanese Breast Cancer Society were analyzed...
Histological grading of ovarian clear cell adenocarcinoma: proposal for a simple and reproducible grouping system based on tumor growth architectureSohei Yamamoto
Department of Basic Pathology, National Defense Medical College, Japan
Int J Gynecol Pathol 31:116-24. 2012..The proposed grouping system could divide patients with CCA into 3 subgroups with distinct prognostic indications, providing a 3-tier histological grading system for ovarian CCA...
Genetic clustering of clear cell renal cell carcinoma based on array-comparative genomic hybridization: its association with DNA methylation alteration and patient outcomeEri Arai
Pathology Division, National Cancer Center Research Institute, Chuo Ku, Tokyo 104 0045, Japan
Clin Cancer Res 14:5531-9. 2008..The aim of this study was to clarify genetic and epigenetic alterations occurring during renal carcinogenesis...
BCL2L2 is a probable target for novel 14q11.2 amplification detected in a non-small cell lung cancer cell lineTsutomu Kawasaki
Department of Molecular Cytogenetics, Medical Research Institute and School of Biomedical Science, Tokyo, Japan
Cancer Sci 98:1070-7. 2007..These findings demonstrate that overexpressed BCL2L2, through amplification or other mechanisms, promotes the growth of NSCLC, especially the adenocarcinoma subtype, and might be a therapeutic target...
Reduced expression of GNA11 and silencing of MCT1 in human breast cancersKiyoshi Asada
Division of Carcinogenesis, National Cancer Center Research Institute, Tokyo, Japan
Oncology 64:380-8. 2003..MCT1 is involved in cellular transportation of butyrate, which induces cellular differentiation. Downregulation of these two genes was suggested to be involved in human breast cancers...
Clinicopathologic and technical factors associated with the uptake of radiocolloid by sentinel nodes in patients with breast cancerKazuhiko Sato
Department of Surgery I, National Defense Medical College, 3-2 Namiki, Tokorozawa, Saitama 359-8513, Japan
Surg Today 33:403-7. 2003..CONCLUSION: Care must be taken when performing sentinel-node biopsy, especially for aged patients and for those with large sentinel nodes. The optimal technique should be determined on the basis of these results...
Validation study on pfetin and ATP-dependent RNA helicase DDX39 as prognostic biomarkers in gastrointestinal stromal tumourDaisuke Kubota
Division of Pharmacoproteomics, National Cancer Center Research Institute, Tokyo, Japan
Jpn J Clin Oncol 42:730-41. 2012..Prognostic biomarkers have long been required for the optimal use of kinase inhibitors in gastrointestinal stromal tumour...
NKX2.2 is a useful immunohistochemical marker for Ewing sarcomaAkihiko Yoshida
Pathology and Clinical Laboratory Division, National Cancer Center Hospital, Tokyo, Japan
Am J Surg Pathol 36:993-9. 2012..All the other non-Ewing tumors tested were negative for this marker. NKX2.2 is a valuable marker for Ewing sarcoma, with a sensitivity of 93% and a specificity of 89%, and aids in the differential diagnosis of small round cell tumors...
Immunohistochemical detection of breast cancer stem cells in hormone receptor-positive breast cancer and their role in response to endocrine therapy and clinical outcomeKenji Hashimoto
Department of Breast Oncology and Medical Oncology, National Cancer Center Hospital, Tokyo, Japan
Oncology 82:168-74. 2012..Therefore, we launched this retrospective biomarker analysis to clarify the role of stem cells in relation with endocrine therapy in hormone receptor-positive breast cancer...
PIK3CA mutations and loss of ARID1A protein expression are early events in the development of cystic ovarian clear cell adenocarcinomaSohei Yamamoto
Department of Basic Pathology, National Defense Medical College, 3 2 Namiki, Tokorozawa, Saitama, Japan
Virchows Arch 460:77-87. 2012..013). PIK3CA gene mutations and ARID1A immunohistochemistry lacked prognostic significance. These data further support the idea that these molecular alterations occur as very early events during tumor development of ovarian CCA...
Clinical proteomics identified ATP-dependent RNA helicase DDX39 as a novel biomarker to predict poor prognosis of patients with gastrointestinal stromal tumorKazutaka Kikuta
Division of Pharmacoproteomics, National Cancer Center Research Institute, Japan
J Proteomics 75:1089-98. 2012..ATP-dependent RNA helicase DDX39, a novel biomarker for GIST likely to be associated with metastatic disease, can identify patients likely to benefit from new therapeutic strategies such as tyrosine kinase inhibitors...
Clinicopathological significance of WT1 expression in ovarian cancer: a possible accelerator of tumor progression in serous adenocarcinomaSohei Yamamoto
Department of Basic Pathology, National Defense Medical College, 3 2 Namiki, Tokorozawa, Saitama 359 8513, Japan
Virchows Arch 451:27-35. 2007..003), Ki-67 LI (P = 0.012), Bcl-2 expression (P = 0.003), and poorer patient outcome (5-year survival, 36.5 vs 63.8%, P = 0.008 by log-rank test). The WT1 protein may be an accelerator of the progression of OSA...
Screening of DNA copy-number aberrations in gastric cancer cell lines by array-based comparative genomic hybridizationHisashi Takada
Department of Molecular Cytogenetics, Medical Research Institute, Tokyo Medical and Dental University, 1-5-45 Yushima Bunkyo-ku, Tokyo, 113-8510, Japan
Cancer Sci 96:100-10. 2005..Taken together, our data indicate that CDK6 might be involved in the pathogenesis of GC and, more generally, that CGH-arrays have a powerful potential for identifying novel cancer-related genetic changes in a variety of tumors...
Differential prognostic significance of morphologic invasive markers in colorectal cancer: tumor budding and cytoplasmic podiaEiji Shinto
Department of Pathology II, National Defense Medical College, 3 2 Namiki, Tokorozawa, Saitama 359 8513, Japan
Dis Colon Rectum 49:1422-30. 2006..In this study, we have investigated the prognostic significance of cytoplasmic podia...
Atypical tumor-stromal fibroblasts in invasive ductal carcinoma of the breastTakahiro Hasebe
Clinical Trials and Practice Support Division, Pathology Consultation Service, Center for Cancer Control and Information Services, National Cancer Center Research Institute, Chuo Ku, Tokyo, Japan
Am J Surg Pathol 35:325-36. 2011....
Utility of axillary ultrasound examination to select breast cancer patients suited for optimal sentinel node biopsyKazuhiko Sato
Department of Surgery I, National Defense Medical College, 3 2 Namiki, Tokorozawa, Saitama 359 8513, Japan
Am J Surg 187:679-83. 2004..Because sentinel node (SN) biopsy (SNB) is known to produce false-negative results, we examined the usefulness of axillary ultrasound (AUS) in selecting patients suitable for optimal SNB...
The correlation between cytoplasmic overexpression of epidermal growth factor receptor and tumor aggressiveness: poor prognosis in patients with pancreatic ductal adenocarcinomaShigeto Ueda
Surgery I, National Defense Medical College, Saitama, Japan
Pancreas 29:e1-8. 2004..We examined the clinicopathological significance of the expression and localization of EGFr and HER-2 in both invasive and intraductal components of ductal adenocarcinomas of the pancreas...
A histopathological study for evaluation of therapeutic effects of radiofrequency ablation in patients with breast cancerHitoshi Tsuda
Pathology and Clinical Laboratory Division, National Cancer Center Hospital, 5 1 1 Tsukiji, Chuo Ku, Tokyo, Japan
Breast Cancer 18:24-32. 2011..To reveal the rate of complete therapeutic effect of radiofrequency ablation (RFA) and its correlation with tumor size by the histopathological examination of surgically resected early breast cancers...
Malignant pulmonary epithelioid hemangioendothelioma with hilar lymph node metastasisNaobumi Tochigi
Pathology Division, National Cancer Center Research Institute, Tokyo 104 0045, Japan
Ann Diagn Pathol 15:207-12. 2011....
An allelotype analysis indicating the presence of two distinct ovarian clear-cell carcinogenic pathways: endometriosis-associated pathway vs. clear-cell adenofibroma-associated pathwaySohei Yamamoto
Department of Basic Pathology, National Defense Medical College, 3 2 Namiki, Tokorozawa, Saitama, 359 8513, Japan
Virchows Arch 455:261-70. 2009..These data further support the presence of two distinct carcinogenic pathways to ovarian clear-cell adenocarcinoma; the allelic status of the 3p, 5q, and 11q loci may provide a means to identify the precursor lesions of these carcinomas...
Protein overexpression and gene amplification of epidermal growth factor receptor in adult testicular germ cell tumors: potential role in tumor progressionKosuke Miyai
Department of Basic Pathology, Tokorozawa, Saitama, Japan
Cancer Sci 101:1970-6. 2010....
Different expression patterns of KIT, EGFR, and HER-2 (c-erbB-2) oncoproteins between epithelial and mesenchymal components in uterine carcinosarcomaMorio Sawada
Department of Gynecology, National Cancer Center Hospital, Tokyo, and Department of Pathology II, National Defense Medical College, Tokorozawa
Cancer Sci 94:986-91. 2003..Structural and/or numerical alterations of chromosomes might be in part involved in EGFR and/or HER-2 overexpression in this tumor type...
Actinin-4 expression in ovarian cancer: a novel prognostic indicator independent of clinical stage and histological typeSohei Yamamoto
Department of Basic Pathology, National Defense Medical College, 3 2 Namiki, Tokorozawa, Saitama, Japan
Mod Pathol 20:1278-85. 2007..Accumulation of actinin-4 in the cytoplasm may be related to a higher propensity for tumor invasiveness and metastasis, probably by enhancing cell motility, and could be a novel prognostic indicator for patients with ovarian carcinomas...
Utility of 10 immunohistochemical markers including novel markers (desmocollin-3, glypican 3, S100A2, S100A7, and Sox-2) for differential diagnosis of squamous cell carcinoma from adenocarcinoma of the LungKoji Tsuta
Division of Pathology and Clinical Laboratory, National Cancer Center Hospital, Tokyo, Japan
J Thorac Oncol 6:1190-9. 2011..Recent clinical trials revealed that accurate histologic typing of non-small cell lung cancer, especially squamous cell carcinoma (SCC), is essential...
Multicenter phase II trial of neoadjuvant exemestane for postmenopausal patients with hormone receptor-positive, operable breast cancer: Saitama Breast Cancer Clinical Study Group (SBCCSG-03)Hiroyuki Takei
Division of Breast Surgery, Saitama Cancer Center, Kita adachi, Saitama, Japan
Breast Cancer Res Treat 107:87-94. 2008..Further studies are required to determine the optimal duration of neoadjuvant treatment and to identify response criteria that can more accurately predict long-term outcomes...
ADAM23, a possible tumor suppressor gene, is frequently silenced in gastric cancers by homozygous deletion or aberrant promoter hypermethylationHisashi Takada
Department of Molecular Cytogenetics, Medical Research Institute and School of Biomedical Science, Tokyo Medical and Dental University, Bunkyo ku, Tokyo, Japan
Oncogene 24:8051-60. 2005..These results suggest that genetic or epigenetic silencing by hypermethylation of the ADAM23 CpG-rich promoter region leads to loss of ADAM23 function, which may be a factor in gastric carcinogenesis...
Nuclear expression of cIAP-1, an apoptosis inhibiting protein, predicts lymph node metastasis and poor patient prognosis in head and neck squamous cell carcinomasTakao Tanimoto
Department of Pathology II, National Defense Medical College, Tokorozawa, Saitama, Japan
Cancer Lett 224:141-51. 2005..Nuclear cIAP-1 expression appears to be a useful marker for predicting poor patient prognosis in HNSCCs, and may play roles in HNSCCs through the signaling pathway mediated by Smac/DIABLO and caspase-3...
Expression and gene amplification of actinin-4 in invasive ductal carcinoma of the pancreasSatoru Kikuchi
Chemotherapy Division, Cancer Proteomics Project, National Cancer Center Research Institute, Chuo Ku, Tokyo, Japan
Clin Cancer Res 14:5348-56. 2008..Actinin-4 is an actin-binding protein associated with enhanced cell motility, invasive growth, and lymph node metastasis. Actinin-4 might play an important role in the development and progression of pancreatic cancer...
PIK3CA mutation is an early event in the development of endometriosis-associated ovarian clear cell adenocarcinomaSohei Yamamoto
Department of Basic Pathology, National Defence Medical College, 3 2 Namiki, Tokorozawa, Saitama, Japan
J Pathol 225:189-94. 2011..A specific kinase inhibitor to mutated PIK3CA may potentially be an effective therapeutic reagent against these carcinomas...
Adjuvant chemotherapy with irinotecan hydrochloride and cisplatin for clear cell carcinoma of the ovaryMasashi Takano
Department of Obstetrics and Gynecology, National Defense Medical College, Saitama 359 8513, Japan
Oncol Rep 16:1301-6. 2006..However, this is a limited retrospective study, therefore we recommend that the CPT-P regimen be evaluated in a larger prospective study...
Invasive ductal carcinoma associated with tubular adenoma of the breastHideharu Domoto
Pathology Division, National Cancer Center Research Institute, Tokyo, Japan
Pathol Int 52:244-8. 2002..Both the long-term observation of this case and analysis of more cases may enable us to determine the histological characteristics and clinical significance of invasive ductal carcinoma associated with tubular adenoma...
Clinicopathologic analysis of multiple (five or more) atypical adenomatous hyperplasias (AAHs) of the lung: evidence for the AAH-adenocarcinoma sequenceAkiko Miyagi Maeshima
Clinical Laboratory, National Cancer Center Hospital, Tokyo, Japan
J Thorac Oncol 5:466-71. 2010..Clarification of the clinicopathologic characteristics of patients with multiple atypical adenomatous hyperplasias (AAHs)...
Individualization of breast cancer based on histopathological features and molecular alterationsHitoshi Tsuda
Department of Basic Pathology, National Defense Medical College, 3 2 Namiki, Tokorozawa, Saitama, 359 8513, Japan
Breast Cancer 15:121-32. 2008..It is expected that additional molecular markers and novel diagnostic tools will be developed in the future to facilitate a more accurate characterization of higher risk node-negative breast carcinomas...
Prognostic significance of expression of CCL5/RANTES receptors in patients with gastric cancerHidekazu Sugasawa
Department of Surgery, National Defense Medical College, Tokorozawa, Saitama, Japan
J Surg Oncol 97:445-50. 2008..The clinical significance of CCL5 has been reported in several malignancies. In this study, we examined the prognostic impact of serum CCL5 levels and the expression of CCL5 receptors on tumor cells in patients with gastric cancer...
Evaluation of interobserver agreement in scoring immunohistochemical results of HER-2/neu (c-erbB-2) expression detected by HercepTest, Nichirei polyclonal antibody, CB11 and TAB250 in breast carcinomaHitoshi Tsuda
Second Department of Pathology, National Defense Medical College, Tokorozawa, Japan
Pathol Int 52:126-34. 2002..When cases of score 2+ are entered into a protocol, evaluation should be given by multiple observers and/or by using other tests such as fluorescence in situ hybridization...
Photoacoustic diagnosis of burns in ratsShunichi Sato
Division of Biomedical Information Sciences, National Defense Medical College Research Institute, National Defense Medical College, Tokorozawa, Japan
J Trauma 59:1450-5; discussion 1455-6. 2005..In this study, we investigated the validity of this method by an experiment using rat scald burn models...
Invasive ductal carcinoma of the breast with a large central acellular zone associated with matrix-producing carcinomaYukihiro Hama
Department of Radiology, National Defense Medical College, Namiki, Tokorozawa, Saitama, Japan
Tumori 90:498-500. 2004....
Effect of HER-2/neu overexpression on chemoresistance and prognosis in ovarian carcinomaNaoki Sasaki
Department of Gynecology and Obstetrics, National Defense Medical College, Saitama, Japan
J Obstet Gynaecol Res 33:17-23. 2007..To investigate the effect of HER-2/neu protein overexpression on chemoresistance and prognosis in patients with epithelial ovarian carcinoma...
HER-2 (c-erbB-2) test update: present status and problemsHitoshi Tsuda
Department of Pathology II, National Defense Medical College, 3 2 Namiki, Tokorozawa, Saitama 359 8513, Japan
Breast Cancer 13:236-48. 2006..These tests should be performed in strict adherence to existing instructions. Quality control is of utmost importance when performing HER-2 tests, both internal and external, for routine diagnosis and in clinical protocol studies...
A proposal for diagnostically meaningful criteria to classify increased epidermal growth factor receptor and c-erbB-2 gene copy numbers in gastric carcinoma, based on correlation of fluorescence in situ hybridization and immunohistochemical measurementsMikihiko Kimura
Department of Pathology II, National Defense Medical College, 3-2 Namiki, Tokorozawa, 359-8513 Saitama, Japan
Virchows Arch 445:255-62. 2004..7 and a mean c-erbB-2 gene copy number of 7.0 or more and/or a c-erbB-2/CEP17 ratio of 2.0 or more would be useful in defining increased EGFR and c-erbB-2 gene copy numbers, respectively, in gastric carcinomas...
p53 expression in tumor-stromal fibroblasts forming and not forming fibrotic foci in invasive ductal carcinoma of the breastTakahiro Hasebe
Pathology Consultation Service, Clinical Trials and Practice Support Division, Center for Cancer Control and Information Service, National Cancer Center, Chuo Ku, Tokyo, Japan
Mod Pathol 23:662-72. 2010....
Multicenter phase II study of fertility-sparing treatment with medroxyprogesterone acetate for endometrial carcinoma and atypical hyperplasia in young womenKimio Ushijima
Japan Gynecologic Cancer Study Group, Tokyo, Japan
J Clin Oncol 25:2798-803. 2007..To assess the efficacy of fertility-sparing treatment using medroxyprogesterone acetate (MPA) for endometrial carcinoma (EC) and atypical endometrial hyperplasia (AH) in young women...
Expression of KIT, EGFR, HER-2 and tyrosine phosphorylation in undifferentiated thyroid carcinoma: implication for a new therapeutic approachTetsuya Murakawa
Department of Pathology II, National Defense Medical College and Hospital, Tokorozawa, Japan
Pathol Int 55:757-65. 2005..Expression of KIT and HER-2 appeared to be weak but significant, suggesting a possible role in the development of UTC. Molecular therapies targeting KIT, EGFR, HER-2, and/or tyrosine phosphorylation might be indicated for UTC...
Clinically useful detection criteria for sentinel nodes in patients with breast cancer using a radioisotope techniqueKazuhiko Sato
Department of Surgery I, National Defense Medical College, Tokorozawa, Saitama, Japan
Jpn J Clin Oncol 32:403-6. 2002..In this study, we considered a clinically useful criterion for detecting sentinel nodes by a detailed analysis of 312 sentinel nodes using the radioisotope technique...
Immature glandular features in squamous cell carcinoma of the uterine cervix as an independent indicator of resistance to radiotherapyS Okada
Pathology Division, National Cancer Center Research Institute, Tokyo, Japan
Int J Gynecol Cancer 12:277-85. 2002..Nonetheless, the identification of "immature glandular features" was effective in predicting the radiotherapy resistance of cervical SCC and poorer patient prognosis...
[Molecular diagnosis of breast cancer]Hitoshi Tsuda
Department of Pathology II, National Defense Medical College, Tokorozawa, Saitama, Japan
Nippon Geka Gakkai Zasshi 103:487-91. 2002....
SKI and MEL1 cooperate to inhibit transforming growth factor-beta signal in gastric cancer cellsMami Takahata
Division of Biochemistry, the Cancer Institute of the Japanese Foundation for Cancer Research JFCR, Division of Molecular Pharmacology, the Cancer Chemotherapy Center of the JFCR, and Genome Center of the JFCR, Tokyo, Japan
J Biol Chem 284:3334-44. 2009..These findings reveal a novel mechanism where distinct transcriptional co-repressors are co-amplified and functionally interact, and provide molecular targets for gastric cancer treatment...
Immunohistochemical detection of hepatocyte nuclear factor 1beta in ovarian and endometrial clear-cell adenocarcinomas and nonneoplastic endometriumSohei Yamamoto
Department of Basic Pathology, National Defense Medical College, Tokorozawa, Saitama, Japan
Hum Pathol 38:1074-80. 2007..HNF-1beta expression seems to be associated with physiopathological cytoplasmic glycogen accumulation in these organs...
Allelotype analysis of common epithelial ovarian cancers with special reference to comparison between clear cell adenocarcinoma with other histological typesSatoshi Okada
Pathology Division, National Cancer Center Research Institute, Chuo-ku, Tokyo 104-0045, Japan
Jpn J Cancer Res 93:798-806. 2002..In CCA, p53 tumor-suppressor gene (TSG) is not involved in carcinogenesis and tumor-suppressor genes located on 1p are considered to play an important role in tumor development...
Clinicopathological significance of cervical adenocarcinoma associated with lobular endocervical glandular hyperplasiaShin Nishio
Department of Basic Pathology, National Defense Medical College, 3 2 Namiki, Tokorozawa, Saitama 359 8513, Japan
Pathol Res Pract 205:331-7. 2009..LEGH may be one of the factors related to the development of cervical adenocarcinoma, but adenocarcinoma with LEGH components does not necessarily develop into a highly aggressive "adenoma malignum."..
Identification of a predictive gene expression signature of cervical lymph node metastasis in oral squamous cell carcinomaSu Tien Nguyen
Department of Molecular Genetics, Medical Research Institute, Tokyo Medical and Dental University, Tokyo, Japan
Cancer Sci 98:740-6. 2007..From these statistical methods, the prediction model was constructed including the eight genes and this model was evaluated by using the test case group. The results in 12 of 13 cases ( approximately 92.3%) were predicted correctly...
Successful treatment of malignant pericardial effusion, using weekly paclitaxel, in a patient with breast cancerTakahiro Einama
Department of Surgery, National Defense Medical College, 3-2 Namiki, Tokorozawa, Saitama, 359-8513, Japan
Int J Clin Oncol 11:412-5. 2006..These findings suggest that weekly intravenous infusion of paclitaxel could be effective for the treatment of patients with malignant pericardial effusion...
