C J Kirkpatrick

..In cultured chrondrocytes, however, only weak expression of EP3 and EP4 receptor was detected. We suggest that in growth plate chondrocytes, COX-2 is responsible for PGE2 release, which stimulates cell proliferation via the EP1 receptor...

..The biological functions of ACh synthesized by endothelial cells are the focus of ongoing research activity...

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..Further experiments are addressed to elucidate the biological role of acetylcholine in the endothelium and possible differences between the different subtypes of endothelial cells...

..Because of the central importance of titanium implants in maxillofacial surgery, new experimental approaches to study possible negative effects are presented. Finally, the relevance of such studies for clinical implantology is evaluated...

..This model provides the molecular biologist with defined stages in the development of mesenchymal malignancy, with which the multistage tumorigenesis hypothesis can be tested, analogous to the well-known adenoma-carcinoma sequence...

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..Thus, HPMEC-ST1.6R will be a valuable in vitro model system in which to study pathomechanisms and angiogenesis of the mature microvascular endothelium in vitro...

..Expression of cathepsins B and K in the MGC of the ACT might contribute to the invasive behavior of this tumor, thus promoting metastatic ability and destruction of the cartilagenous trachea...

..Because previous studies showed that osteoclasts express high levels of CD68, cathepsin K, and cystatin C but not of cathepsin B, our study contributes to the view that GC of GCTTS and osteoclasts are closely associated...

..The microvascular endothelial cell line, HPMEC-ST1.6R, will be a valuable tool for the study of microvascular endothelial physiology and pathology including gene expression, angiogenesis, and tumorigenesis...

..The purpose of the present study was to use a dynamic cell culture system to compare the reactions of HUVEC and human pulmonary microvascular EC (HPMEC) to pro-inflammatory stimulation...

..In particular, members of the Bcl-2 family as well as the Fas system are known to be involved in the regulation of apoptosis in different tumor entities...

..Thus, cholinesterase inhibitors increase assayed acetylcholine by two mechanisms, protection of hydrolysis and stimulation of facilitatory nicotine receptors...

..Experiments using cyclopamine, a Shh pathway inhibitor, blocked the effects of Shh...

..Strong expression of this collagenolytic enzyme in osteoclasts suggests that these cells are mainly involved in cathepsin K-mediated bone destruction...

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..In contrast to this, variation of PCL content had no effect on the osteogenic differentiation in the co-culture...

..In addition, this combination increased the vascularization of the implantation bed, which is essential for successful tissue regeneration...

..In addition, due to their patency VEGFR-3-positive peritumoral, but not intratumoral lymphatics could be the vascular substrate functionally mediating lymphogenous metastasis...

..The in vitro data support recent in vivo studies and indicate that this calcium phosphate/SiO2-xerogel composite could be a useful scaffold material for tissue engineering...

..There is also markedly heterogeneous expression of E-selectin and VCAM, indicating toporegional differences in the function of pulmonary ECs...

..The three-dimensional, FCS-free co-culture system could provide a new basis for the development of complex tissue engineered constructs with a high regeneration and vascularization capacity...

..Western blotting of lysates of cells obtained through enzymatic harvest therefore can only be used with internal controls for the assessment of artifacts introduced by trypsinization, or alternative methods should be sought...

..Therefore, it was of interest to determine whether the 'negative' appendix correlated with the absence of E-selectin or vascular cell adhesion molecule-1 (VCAM-1)...

..These paradoxical responses to different metallic nanoparticles and ions demonstrate the complexity of nanoparticle-induced effects and suggest the need to design new strategies for nanoparticle toxicology...

..In addition a hepatocellular carcinoma was found. Due to the relationship with malignant tumors littoral cell angioma should be considered in every case of a splenic tumoral space-occupying mass, particularly in carcinoma patients...

..Hypoxia appears to be the strongest inducer of neoangiogenesis in the sarcomas. The expression of receptor tyrosine kinases of the VEGF family provides a basis for an adjuvant therapy...

..This observation has implications for development of therapeutic approaches for angiosarcoma...

..Thus, PES is a substrate for the growth of many different types of human cells and may be a useful scaffolding material for tissue engineering...

..However, in vitro studies offer a good pre-screening and selection basis to evaluate the biocompatibility of novel biomaterials prior to animal studies. Multicell type co-culture systems hold a great promise for the future...

..These include the application of modern techniques of cell and molecular biology, the concepts of tissue remodelling, hybrid organ development and encapsulated cell technology...

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..5 presented characteristics suggestive of tumor cells, they did not develop into tumors when inoculated subcutaneously into nude mice. The cell line AS-M.5 could be a useful model system to study endothelial pathobiology in vitro...

..However, the exact nature of the agent of oxidative stress generated from Ti6Al4V remains unclear and requires further investigation...

..Thus, examining the pattern of expression of specific interendothelial contact molecules in vitro may be useful for testing the endothelial cell compatibility of biomaterials and their corrosion products...

..This might be of special significance in colon carcinomas, where a large source of bacterial LPS is available in the intestinal lumen...

..The p53 marker can be used for defining cell function in more detail, although the correlation with specific physiological function has still to be clarified...

..Most remarkably, the expression of ED-B Fn in pannus tissue seems to be associated with the invasive phenotype described in RA tissue...

..The function of pineal acetylcholine is not clear, but there are indications that acetylcholine may depress noradrenaline release from intrapineal sympathetic fibres and hence melatonin synthesis...

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..The differential diagnoses are reviewed and discussed. Treatment is by surgical resection. Because of the tendency of myoepitheliomas to recur and to malignant transformation, tumor-free margins are recommended...

..The involvement of the non-neuronal cholinergic system in the pathogenesis of chronic inflammatory diseases should be investigated to open up new therapeutic strategies...

..Methodological aspects of the combination of these techniques and results from four patients enrolled in the study are presented that indicate that the uptake of p-borono-phenylalanine strongly depends on the metabolic activity of cells...

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..Overall and relapse-free survival showed no difference concerning all examined parameters. Thus, microvessel density does not seem to be a prognostic factor in SPA and other sarcomas...

..abstract:..

..Our observations might reflect dysregulation of cellular pathways contributing to cellular dissemination, which might potentially result in later recurrence...

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..Our results underline the necessity to take into account the in situ production of growth factors by invading mesenchymal cells in the regenerative niche...

..Finally, the use of this commercially available antibody provides an additional help in the differential diagnosis of LAM from other soft tissue tumors...

..Based on these observations, we conclude that OECs could provide a valuable source of autologous endothelial cells for the generation of complex tissue-engineered tissues...

..The compartmentalization of the barrier-forming bilayer also allows mechanisms of lung injury to be studied in both the epithelial (intra-alveolar) and the endothelial (intravascular) compartments...

..The observed biocompatibility and development of new vascularized tissue using both techniques demonstrates the potential of these angiogenesis-promoting materials for a host of regenerative strategies...

..The data from the Co group show that the physical properties (particulate versus bulk form) could have a significant influence on the acceleration of the neoplastic process...

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..The new concept takes us into the responsibility--puts us in charge of our own and our patients' cardiovascular risk--whether we like it or not. The smoking obese doctor no longer fits into the modern medical landscape...

..We also established that immunohistochemical methods can be applied together with the oil red staining method...

..e., after trauma, major surgery, or sepsis) and thus predispose to complications such as acute respiratory distress syndrome or multiple organ failure...

..This study demonstrates that variations in the physical properties of a bone substitute material clearly influence the (extent of the) inflammatory reaction and its consequences...

..Thus, this coculture-based pre-vascularization of a biomaterial implant may have great potential in the clinical setting to treat large bone defects...

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..g. endotoxins), cellular targets of these molecules and their responses, host reactions, intracellular and cytokine networks, individual susceptibility and new therapeutic targets in sepsis treatment...

..Patients with Actinomycosis of the jaws during or after these forms of anti-cancer therapy are suggested to represent a distinct patient cohort with a relevant impairment of their general condition...

..If a pro-inflammatory stimulation of endothelial cells occurs in vivo, a chronic inflammation could be a possible consequence...

..Warthin tumour is the second most common benign tumour of the parotid gland. This study was designed to investigate the lymphatic vessels in Warthin tumours in an effort to understand better its pathogenesis...

..01 mM). This led to the conclusion that although hypoxia signaling after Co2+ -exposure took place, further yet unknown Co2+ -induced event(s) must have occurred...

..This manuscript describes successful osteoblastic growth promotion in vitro and a promising biomaterial integration and vasculogenesis in vivo for a possible therapeutic application of this biomatrix in future clinical studies...

..Our model will be suitable to systematically study adsorption, uptake and trafficking of newly synthesized nanosized carriers under different physiological conditions...

..The quantification of the cobalt/ion-exerted effects on angiogenesis in vitro was performed using a contrast-rich vital staining and analysed by software-supported image quantification...

..It is generally recommended to exclude metastasis of a primary appendiceal neoplasm. However, since the patient underwent an appendectomy in 1974, primary origin in the rectum is favored...

..The combination of HP and Hashimoto's disease is most probably a coincidental event. However, this case confirms previous reports demonstrating that in patients with Hashimoto's disease different neoplasias can occur...

..Our findings underline the fact that multiple factors contribute to chemoresistance and that examination of a spectrum of relevant molecules is probably necessary to plan the best therapy...

..This article discusses some important growth factors in the process of endochondral ossification and demonstrates how this information could be translated into a controlled release system for different tissue engineering strategies...

..The results of this study demonstrate that a potential cytotoxic effect of a sealing material may beneficial in order to have antibacterial properties and induce self degradation when accidentally extruded over the apical foramen...

..7. It is concluded that the release of non-neuronal acetylcholine from the human placenta is mediated via organic cation transporters of the OCT1 and OCT3 subtype...

..Alterations have been detected in inflammatory processes and a pathobiologic role of non-neuronal ACh in different diseases is discussed. The present article reviews recent findings about the non-neuronal cholinergic system in humans...

..Thus, the expression patterns in vitro are only partially transferable to in vivo conditions. The study suggests that E-selectin- and VCAM-coated beads could potentially serve in the isolation process of arteriolar and venular ECs...

..The favourable effects of C1-INH are explained by the protection of the dermal microcirculation during the acute phase of thermal injury...

..The role of CD117 in the pathogenesis of BPB and its possible therapeutic relevance require further investigation...

..The histological phenomenon of increased mast cell populations in aluminium granuloma might reflect the association with urticaria, which is probably more frequent than previously reported...

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..It was the aim of our study to establish a model for prediction of lymph node metastases in superficial esophageal cancer...

..Despite myofibroblastic phenotype, APC/beta-catenin pathway changes are rare. Cyclin D1, only expressed in the myxofibrosarcoma-type, is likely transcribed via factors other than beta-catenin...

..From the histopathologic perspective, detection of Actinomyces is important because these bacteria have been shown to be associated with prolonged treatment duration...

..To our knowledge this is the first report on AR expression in this benign polyp. Our findings confirm the view that tubulosquamous polyp of the vagina is derived from paraurethral Skene's gland...

..We investigated the feasibility and short-term effects of a novel procedure to create intramyocardial channels by means of high frequency (HF) ablation in a rabbit in vivo model...

..Actinomyces positivity defines a subpopulation with a clinically deteriorated course of mandibular IORN...

..In addition, much more basic research is necessary in developmental biology and the application of modern cell and molecular biology to biomaterial questions...

..We demonstrate for the first time the influence a cognitive bias can have in the generation of an error in diagnostic pathology and highlight a considerable problem in histopathological tumour grading...

..Thus, there is no evidence that a mutator phenotype is a hallmark of biomaterial-induced sarcomagenesis...

..The degradation of the microspheres was determined in a long-term experiment in culture medium for 3 months. Adherent cells were characterized after 3 and 5 days by FDA+EB vital staining and in SEM...

..Moreover, the need for endothelial markers specific for single microvascular type ECs becomes obvious in order to establish cultures consisting of only one microvascular ECs subpopulation...

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..Because S1P1 knockout is lethal in the transgenic mouse, an alternative approach to study the function of S1P1 in endothelial cells is needed...

..These findings provide the first proof of the antigenic property of KDR protein and may be useful for devising new immunotherapeutic approaches to human cancers...