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251.
Arne Andersson Per-Ola Carlsson Carina Carlsson Richard Olsson Astrid Nordin Magnus Johansson Fredrik Palm Björn Tyrberg Örjan Källskog Linda Tillmar Nils Welsh Göran Mattsson Leif Jansson 《Cell biochemistry and biophysics》2004,40(3):55
Engraftment (i.e., the adaptation of transplanted pancreatic islets to their new surroundings with regard to revascularization, reinnervation, and reorganization of other stromal compartments) is of crucial importance for the survival and function of the endocrine cells. Previous studies suggest that transplantation induces both vascular and stromal dysfunctions in the implanted islets when compared with endogenous islets. Thus the vascular density and the blood perfusion of islet grafts is decreased and accompanied with a capillary hypertension. This leads to hypoxic conditions, with an associated shift toward anaerobic metabolism in grafted islets. An improved engraftment will prevent or compensate for the vascular/stromal dysfunction seen in transplanted islets and thereby augment survival of the islet implant. By such means the number of islets needed to cure the recipient will be lessened. This will increase the number of patients that can be transplanted with the limited material available. 相似文献
252.
Flora Doffe Vincent Carbonnier Manon Tissier Bernard Leroy Isabelle Martins Johanna S. M. Mattsson Patrick Micke Sarka Pavlova Sarka Pospisilova Jana Smardova Andreas C. Joerger Klas G. Wiman Guido Kroemer Thierry Soussi 《Cell death and differentiation》2021,28(5):1477
Infrequent and rare genetic variants in the human population vastly outnumber common ones. Although they may contribute significantly to the genetic basis of a disease, these seldom-encountered variants may also be miss-identified as pathogenic if no correct references are available. Somatic and germline TP53 variants are associated with multiple neoplastic diseases, and thus have come to serve as a paradigm for genetic analyses in this setting. We searched 14 independent, globally distributed datasets and recovered TP53 SNPs from 202,767 cancer-free individuals. In our analyses, 19 new missense TP53 SNPs, including five novel variants specific to the Asian population, were recurrently identified in multiple datasets. Using a combination of in silico, functional, structural, and genetic approaches, we showed that none of these variants displayed loss of function compared to the normal TP53 gene. In addition, classification using ACMG criteria suggested that they are all benign. Considered together, our data reveal that the TP53 coding region shows far more polymorphism than previously thought and present high ethnic diversity. They furthermore underline the importance of correctly assessing novel variants in all variant-calling pipelines associated with genetic diagnoses for cancer.Subject terms: Tumour-suppressor proteins, Genetics research 相似文献