Research Topics
| Y E NikiforovSummaryAffiliation: University of Cincinnati Country: USA Publications
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Detail Information
Publications
The molecular pathways induced by radiation and leading to thyroid carcinogenesisYuri E Nikiforov
Department of Pathology, University of Cincinnati, USA
Cancer Treat Res 122:191-206. 2004
PAX8-PPARgamma rearrangement in thyroid tumors: RT-PCR and immunohistochemical analysesMarina N Nikiforova
Department of Pathology and Laboratory Medicine, University of Cincinnati, Cincinnati, Ohio 45267 0529, USA
Am J Surg Pathol 26:1016-23. 2002..The absence of PAX8-PPARgamma rearrangements in Hurthle cell tumors and papillary thyroid carcinomas highlights the differences in the molecular pathogenesis of these thyroid tumors...
Spatial positioning of RET and H4 following radiation exposure leads to tumor developmentY E Nikiforov
Department of Pathology, University of Cincinnatti, OH 45267 0529, USA
ScientificWorldJournal 1:186-7. 2001..However, since the DNA targets of ionizing radiation are randomly distributed throughout the cell nucleus, the reason for predilection for the RET rearrangements in thyroid cells was unclear...
Low prevalence of BRAF mutations in radiation-induced thyroid tumors in contrast to sporadic papillary carcinomasMarina N Nikiforova
Department of Pathology and Laboratory Medicine, University of Cincinnati, 231 Albert Sabin Way, P O Box 670529, Cincinnati, OH 45267 0529, USA
Cancer Lett 209:1-6. 2004..These results demonstrate a significant difference in the molecular genetic profile of sporadic and radiation-induced thyroid tumors...
RET/PTC rearrangement in thyroid tumorsYuri E Nikiforov
Department of Pathology and Laboratory Medicine, University of Cincinnati, Cincinnati, OH 45267 0529, USA
Endocr Pathol 13:3-16. 2002..The occurrence of RET/PTC in Hashimoto thyroiditis and thyroid follicular adenomas and hyperplastic nodules reported in several studies has not been confirmed in other observations and remains controversial...
Genetic alterations involved in the transition from well-differentiated to poorly differentiated and anaplastic thyroid carcinomasYuri E Nikiforov
Department of Pathology and Laboratory Medicine, University of Cincinnati, Cincinnati, OH 45267 0529, USA
Endocr Pathol 15:319-27. 2004..This suggests that poorly differentiated carcinoma, as a group, represents a distinct step in the evolution from well-differentiated to anaplastic thyroid carcinoma, rather than an entirely separate type of thyroid malignancy...
Solid variant of papillary thyroid carcinoma: incidence, clinical-pathologic characteristics, molecular analysis, and biologic behaviorY E Nikiforov
Department of Pathology and Laboratory Medicine, University of Cincinnati, Cincinnati, Ohio 45267 0529, USA
Am J Surg Pathol 25:1478-84. 2001..However, it should be distinguished from poorly differentiated thyroid carcinoma, which has a reported lower survival rate compared with the solid variant of papillary carcinoma...
RAS point mutations and PAX8-PPAR gamma rearrangement in thyroid tumors: evidence for distinct molecular pathways in thyroid follicular carcinomaMarina N Nikiforova
Department of Pathology and Laboratory Medicine, University of Cincinnati, Cincinnati, Ohio 45267 0529, USA
J Clin Endocrinol Metab 88:2318-26. 2003..These results suggest that conventional follicular thyroid carcinomas develop through at least two distinct and virtually nonoverlapping molecular pathways initiated by either RAS point mutation or PAX8-PPAR gamma rearrangement...
High prevalence of BRAF mutations in thyroid cancer: genetic evidence for constitutive activation of the RET/PTC-RAS-BRAF signaling pathway in papillary thyroid carcinomaEdna T Kimura
Division of Endocrinology and Metabolism, University of Cincinnati College of Medicine, Cincinnati, Ohio 45267, USA
Cancer Res 63:1454-7. 2003..Because these signaling proteins function along the same pathway in thyroid cells, this represents a unique paradigm of human tumorigenesis through mutation of three signaling effectors lying in tandem...
Molecular profile and clinical-pathologic features of the follicular variant of papillary thyroid carcinoma. An unusually high prevalence of ras mutationsZhaowen Zhu
Departments of Pathology and Laboratory Medicine, University of Cincinnati, Cincinnati, 231 Albert Sabin Way, PO Box 670529, Cincinnati, OH 45267-0529, USA
Am J Clin Pathol 120:71-7. 2003..These data indicate that the FV of papillary carcinoma has a distinct set of molecular alterations and is characterized by a high frequency of ras point mutations...
Prevalence of RET/PTC rearrangements in thyroid papillary carcinomas: effects of the detection methods and genetic heterogeneityZhaowen Zhu
Department of Pathology, University of Cincinnati, 231 Albert Sabin Way, P.O. Box 670529, Cincinnati, Ohio 45267-0529, USA
J Clin Endocrinol Metab 91:3603-10. 2006..CONCLUSIONS: Our data suggest that broad variability in the reported prevalence of RET/PTC rearrangement is at least in part a result of the use of different detection methods and tumor genetic heterogeneity...
Molecular classification of papillary thyroid carcinoma: distinct BRAF, RAS, and RET/PTC mutation-specific gene expression profiles discovered by DNA microarray analysisThomas J Giordano
Department of Pathology, UH 2G332 0054, University of Michigan Medical School, Ann Arbor, 48109 0054, USA
Oncogene 24:6646-56. 2005....
BRAF mutations in thyroid tumors are restricted to papillary carcinomas and anaplastic or poorly differentiated carcinomas arising from papillary carcinomasMarina N Nikiforova
Department of Pathology and Laboratory Medicine, University of Cincinnati, Cincinnati, Ohio 45267, USA
J Clin Endocrinol Metab 88:5399-404. 2003..They are associated with distinct phenotypical and biological properties of papillary carcinomas and may participate in progression to poorly differentiated and anaplastic carcinomas...
Isozyme-specific abnormalities of PKC in thyroid cancer: evidence for post-transcriptional changes in PKC epsilonJeffrey A Knauf
Division of Endocrinology and Metabolism, University of Cincinnati College of Medicine, Cincinnati, Ohio 45267, USA
J Clin Endocrinol Metab 87:2150-9. 2002..These data indicate that post-transcriptional changes in PKCepsilon are highly prevalent in thyroid tumors and may play a significant role in their development...
Thyroid transcription factor-1, thyroglobulin, cytokeratin 7, and cytokeratin 20 in thyroid neoplasmsP A Bejarano
Department of Pathology, University of Miami School of Medicine, Florida 33136, USA
Appl Immunohistochem Mol Morphol 8:189-94. 2000..Thyroid tumors are CK7+/CK20-. The panel of antibodies for TG, TTF-1, CK7, and CK20 is useful when the thyroid origin of a metastatic tumor is a consideration...
Encapsulated papillary oncocytic neoplasms of the thyroid: morphologic, immunohistochemical, and molecular analysis of 18 casesRandall Lyndon Woodford
Department of Pathology, University of Virginia Health System, Charlottesville, VA 22908, USA
Am J Surg Pathol 34:1582-90. 2010..Our results confirm that EPONs are histologically, immunohistochemically, and molecularly distinct from papillary thyroid carcinoma and seem to be most related to follicular neoplasms...
Prevalence of RET/PTC rearrangements in Hashimoto's thyroiditis and papillary thyroid carcinomasMarina N Nikiforova
Department of Pathology and Laboratory Medicine, University of Cincinnati, 231 Albert Sabin Way, Cincinnati, OH 45267 0529, USA
Int J Surg Pathol 10:15-22. 2002..These results suggest that, if the association between HT and thyroid cancer exists, its molecular basis is different from RET/PTC rearrangement...
BRAF copy number gains in thyroid tumors detected by fluorescence in situ hybridizationRaffaele Ciampi
Department of Pathology and Laboratory Medicine, University of Cincinnati College of Medicine, Cincinnati, OH 45267, USA
Endocr Pathol 16:99-105. 2005..By Western blotting, the tumors carrying four copies of the gene revealed higher expression of BRAF protein, suggesting that copy number gain may represent another mechanism of BRAF activation in thyroid tumors...
Oncogenic AKAP9-BRAF fusion is a novel mechanism of MAPK pathway activation in thyroid cancerRaffaele Ciampi
Department of Pathology and Laboratory Medicine and Division of Endocrinology, University of Cincinnati College of Medicine, Cincinnati, Ohio 45267 0529, USA
J Clin Invest 115:94-101. 2005....
Molecular diagnostics and predictors in thyroid cancerMarina N Nikiforova
Department of Pathology and Laboratory Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
Thyroid 19:1351-61. 2009....
DNA breaks at fragile sites generate oncogenic RET/PTC rearrangements in human thyroid cellsM Gandhi
Department of Pathology and Laboratory Medicine, University of Pittsburgh, Pittsburgh, PA, USA
Oncogene 29:2272-80. 2010..These results provide the direct evidence for the involvement of chromosomal fragile sites in the generation of cancer-specific rearrangements in human cells...
Alterations of the BRAF gene in thyroid tumorsRaffaele Ciampi
Department of Pathology and Laboratory Medicine, University of Cincinnati College of Medicine, Cincinnati, OH 45267-0529, USA
Endocr Pathol 16:163-72. 2005..Yet another mechanism of BRAF activation may involve copy number gain, which is seen in a significant portion of thyroid follicular tumors of both conventional and oncocytic (Hürthle cell) types...
RET/PTC rearrangements and BRAF mutations in thyroid tumorigenesisRaffaele Ciampi
Department of Pathology, University of Pittsburgh, 3550 Terrace Street, Pittsburgh, PA 15261, USA
Endocrinology 148:936-41. 2007..Molecular inhibitors that block RET/PTC or BRAF kinase activity have shown substantial therapeutic effects in the experimental systems and are currently being tested in clinical trials...
Targeted expression of BRAFV600E in thyroid cells of transgenic mice results in papillary thyroid cancers that undergo dedifferentiationJeffrey A Knauf
Division of Endocrinology and Department of Pathology, University of Cincinnati College of Medicine, Cincinnati, Ohio 45267 0547, USA
Cancer Res 65:4238-45. 2005..This closely recapitulates the phenotype of BRAF-positive PTCs in humans and supports a key role for this oncogene in its pathogenesis...
Contribution of molecular testing to thyroid fine-needle aspiration cytology of "follicular lesion of undetermined significance/atypia of undetermined significance"N Paul Ohori
Department of Pathology, University of Pittsburgh Medical Center Presbyterian, Pittsburgh, Pennsylvania 15213, USA
Cancer Cytopathol 118:17-23. 2010..The use of ancillary molecular studies has not been widely explored for this diagnosis...
BRAF kinase activation via chromosomal rearrangement in radiation-induced and sporadic thyroid cancerRaffaele Ciampi
Department of Pathology and Laboratory Medicine, University of Cincinnati College of Medicine, Cincinnati, Ohio 45267-0529, USA
Cell Cycle 4:547-8. 2005....
Dose-dependent generation of RET/PTC in human thyroid cells after in vitro exposure to gamma-radiation: a model of carcinogenic chromosomal rearrangement induced by ionizing radiationChristy M Caudill
Department of Pathology, University of Cincinnati, 231 Albert Sabin Way, P.O. Box 670529, Cincinnati, Ohio 45267-0529, USA
J Clin Endocrinol Metab 90:2364-9. 2005..1-10 Gy gamma-radiation. This provides additional evidence for a direct link between this genetic event and radiation exposure and offers a powerful experimental system for studying radiation-induced carcinogenesis in the thyroid gland...
Delineation, functional validation, and bioinformatic evaluation of gene expression in thyroid follicular carcinomas with the PAX8-PPARG translocationThomas J Giordano
Department of Pathology, University of Michigan Medical School, Ann Arbor, Michigan, USA
Clin Cancer Res 12:1983-93. 2006..These results have implications for the neoplastic mechanism of these follicular carcinomas...
Molecular genetics of thyroid cancer: implications for diagnosis, treatment and prognosisMarina N Nikiforova
Department of Pathology, University of Pittsburgh, 3550 Terrace Street, Pittsburgh, PA 15261, USA
Expert Rev Mol Diagn 8:83-95. 2008..Detection of these genetic alterations using molecular techniques is important for preoperative fine-needle aspiration diagnosis, prognosis and treatment of thyroid cancer...
Tumor-to-tumor metastases to follicular variant of papillary thyroid carcinoma: histologic, immunohistochemical, and molecular studies of two unusual casesJing Yu
Department of Pathology, University of Pittsburgh Medical Center, Pittsburgh, PA 15213, USA
Endocr Pathol 20:235-42. 2009..A brief review of literature and discussion of tumor-to-tumor metastasis in thyroid neoplasms is also presented...
HOOK3-RET: a novel type of RET/PTC rearrangement in papillary thyroid carcinomaRaffaele Ciampi
Department of Pathology, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
Endocr Relat Cancer 14:445-52. 2007..Expression of the HOOK3-RET cDNA in NIH3T3 cells resulted in the formation of transformed foci and in tumor formation after injection into nude mice, confirming the oncogenic nature of HOOK3-RET...
Interphase chromosome folding determines spatial proximity of genes participating in carcinogenic RET/PTC rearrangementsM Gandhi
Department of Pathology and Laboratory Medicine, University of Cincinnati College of Medicine, Cincinnati, OH 45267-0529, USA
Oncogene 25:2360-6. 2006..This study provides evidence for large-scale chromosome folding of the 10q11.2-21 region that offers a structural basis for nonrandom positioning and spatial proximity of potentially recombinogenic intrachromosomal loci...
Radiation-induced thyroid cancer: what we have learned from chernobylYuri E Nikiforov
Department of Pathology, University of Pittsburgh, Pittsburgh, PA 15261, USA
Endocr Pathol 17:307-17. 2006..On the molecular level, post-Chernobyl tumors are characterized by frequent occurrence of chromosomal rearrangements, such as RET/PTC, whereas point mutations of BRAF and other genes are much less common in this population...
Mechanisms of chromosomal rearrangements in solid tumors: the model of papillary thyroid carcinomaManoj Gandhi
Department of Pathology and Laboratory Medicine, University of Pittsburgh, Pittsburgh, PA 15213, USA
Mol Cell Endocrinol 321:36-43. 2010....
Correlation between genetic alterations and microscopic features, clinical manifestations, and prognostic characteristics of thyroid papillary carcinomasAdebowale J Adeniran
Department of Pathology and Laboratory Medicine, University of Cincinnati, Cincinnati, OH 45267-0529, USA
Am J Surg Pathol 30:216-22. 2006..These findings demonstrate that BRAF, RET/PTC, and RAS mutations are associated with distinct microscopic, clinical, and biologic features of thyroid papillary carcinomas...
Detection of SYT-SSX rearrangements in synovial sarcomas by real-time one-step RT-PCRMarina N Nikiforova
Department of Pathology, Cincinnati Children s Hospital Medical Center, 3333 Burnet Avenue, Cincinnati, OH 45229, USA
Pediatr Dev Pathol 8:162-7. 2005..In conclusion, we have developed a fast, accurate, and simple method for the detection of 2 major types of SYT-SSX rearrangement by using LightCycler RT-PCR and melting curve analysis...
Proliferative activity of human thyroid cells in various age groups and its correlation with the risk of thyroid cancer after radiation exposureAli G Saad
Department of Pathology, University of Cincinnati, 231 Albert Sabin Way, P.O. Box 670529, Cincinnati, Ohio 45267-0529, USA
J Clin Endocrinol Metab 91:2672-7. 2006..However, the variation in the rate of cell proliferation is unlikely to be responsible entirely for this phenomenon and other factors may also be involved...
MicroRNA expression profiles in thyroid tumorsMarina N Nikiforova
Department of Pathology, University of Pittsburgh School of Medicine, 200 Lothrop Street, Pittsburgh, PA 15213, USA
Endocr Pathol 20:85-91. 2009..The purpose of this review is to summarize the existing findings of miRNA deregulation in thyroid tumors and its potential role in thyroid cancer biology and molecular diagnostics...
MicroRNA expression profiling of thyroid tumors: biological significance and diagnostic utilityMarina N Nikiforova
Department of Pathology, University of Pittsburgh, 3550 Terrace Street, Pittsburgh, PA 15261, USA
J Clin Endocrinol Metab 93:1600-8. 2008....
Detection of IDH1 and IDH2 mutations by fluorescence melting curve analysis as a diagnostic tool for brain biopsiesCraig Horbinski
Department of Pathology, University of Kentucky, Lexington, Kentucky, USA
J Mol Diagn 12:487-92. 2010....
Downregulation of Rap1GAP through epigenetic silencing and loss of heterozygosity promotes invasion and progression of thyroid tumorsHui Zuo
Department of Pathology, University of Pittsburgh, Pittsburgh, Pennsylvania 15213, USA
Cancer Res 70:1389-97. 2010..Overall, our findings indicate that epigenetic or genetic loss of Rap1GAP is very common in thyroid cancer, where these events are sufficient to promote cell proliferation and invasion...
Amiodarone-induced thyrotoxicosis and thyroid cancer: clinical, immunohistochemical, and molecular genetic studies of a case and review of the literatureAly Saad
Department of Pathology and Laboratory Medicine, University of Cincinnati, Cincinnati, Ohio 45267-0529, USA
Arch Pathol Lab Med 128:807-10. 2004..The prevalence of thyroid cancer in patients with AIT is unknown. We report a case of papillary thyroid carcinoma associated with type 2 AIT...
Gene position within chromosome territories correlates with their involvement in distinct rearrangement types in thyroid cancer cellsManoj S Gandhi
Department of Pathology, University of Pittsburgh, Pittsburgh, PA 15261, USA
Genes Chromosomes Cancer 48:222-8. 2009....
Thyroid carcinoma: molecular pathways and therapeutic targetsYuri E Nikiforov
Department of Pathology, University of Pittsburgh Medical Center, Pittsburgh, PA 15261, USA
Mod Pathol 21:S37-43. 2008..A number of compounds have been studied and showed antitumor effects in preclinical studies and are being tested in ongoing clinical trials...
RET/PTC Rearrangement--a link between Hashimoto's thyroiditis and thyroid cancer...or notYuri E Nikiforov
J Clin Endocrinol Metab 91:2040-2. 2006
Establishment of a non-tumorigenic papillary thyroid cell line (FB-2) carrying the RET/PTC1 rearrangementFulvio Basolo
Dipartimento di Oncologia, Universita degli Studi di Pisa, Pisa, Italy
Int J Cancer 97:608-14. 2002..Moreover, FB-2 cells produced high levels of interleukin (IL)-6 and IL-8...
Regulation of p27Kip1 protein levels contributes to mitogenic effects of the RET/PTC kinase in thyroid carcinoma cellsDonata Vitagliano
Dipartimento di Biologia e Patologia Cellulare e Molecolare, University 'Federico II' c/o Istituto di Endocrinologia ed Oncologia Sperimentale, Consiglio Nazionale delle Ricerche, Naples, Italy
Cancer Res 64:3823-9. 2004..Therefore, in thyroid cancer, RET/PTC-mediated MAPK activation contributes to p27Kip1 deregulation. This pathway is implicated in cell cycle progression and in response to small molecule kinase inhibitors...
Molecular profile of hyalinizing trabecular tumours of the thyroid: high prevalence of RET/PTC rearrangements and absence of B-raf and N-ras point mutationsGiuliana Salvatore
Istituto di Endocrinologia ed Oncologia Sperimentale del CNR, c/o Dipartimento di Biologia e Patologia Cellulare e Molecolare, University Federico II, Via S. Pansini 5, 80131 Naples, Italy
Eur J Cancer 41:816-21. 2005..Thus, in clinical practice, the detection of B-raf mutations in a thyroid follicular tumour may prove to be a valuable tool, supplementing histological examination, and allowing a differential diagnosis between PTC and HTT...
Analysis of BRAF point mutation and RET/PTC rearrangement refines the fine-needle aspiration diagnosis of papillary thyroid carcinomaGiuliana Salvatore
Istituto di Endocrinologia ed Oncologia Sperimentale del Consiglio Nazionale delle Ricerche and Dipartimento di Biologia e Patologia Cellulare e Molecolare, University Federico II, 80131 Napoli, Italy
J Clin Endocrinol Metab 89:5175-80. 2004..These results indicate that BRAF mutation and RET/PTC rearrangements are molecular markers of PTC that can be applied to FNA in adjunct to traditional cytology...
Autonomously functioning thyroid nodules are not associated with BRAF mutationsEdna T Kimura
Clin Endocrinol (Oxf) 60:394-6. 2004
Editorial: anaplastic carcinoma of the thyroid--will aurora B light a path for treatment?Yuri E Nikiforov
J Clin Endocrinol Metab 90:1243-5. 2005
Poorly differentiated thyroid carcinoma: the Turin proposal for the use of uniform diagnostic criteria and an algorithmic diagnostic approachMarco Volante
Department of Clinical and Biological Sciences at San Luigi Hospital, University of Turin, Turin, Italy
Am J Surg Pathol 31:1256-64. 2007..An algorithmic approach was devised for practical use in the diagnosis of this tumor...
Follicular variant papillary thyroid carcinoma arising within an ovarian teratomaMabel Ryder
Division of Endocrinology, Memorial Sloan-Kettering Cancer Center, New York, USA
Thyroid 17:179-80. 2007
Utilization of ancillary studies in thyroid fine needle aspirates: a synopsis of the National Cancer Institute Thyroid Fine Needle Aspiration State of the Science ConferenceArmando C Filie
Laboratory of Pathology, National Cancer Institute, Bethesda, Maryland 20892, USA
Diagn Cytopathol 36:438-41. 2008..cancer.gov). This document summarizes matters regarding the utilization of ancillary studies in thyroid FNA (http://thyroidfna.cancer.gov/pages/info/agenda/)...
