کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6491570 43427 2014 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Bovine and porcine fibroblasts can be immortalized with intact karyotype by the expression of mutant cyclin dependent kinase 4, cyclin D, and telomerase
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی بیو مهندسی (مهندسی زیستی)
پیش نمایش صفحه اول مقاله
Bovine and porcine fibroblasts can be immortalized with intact karyotype by the expression of mutant cyclin dependent kinase 4, cyclin D, and telomerase
چکیده انگلیسی
Cattle and pigs comprise the most economically important livestock. Despite their importance, cultured cells from these species, which are useful for physiological analyses, are quite limited in cell banks. One of the reasons for the limited number of cell lines is the difficulty in their establishment. To overcome limitations in cell-line establishment, we attempted to immortalize bovine and porcine fibroblasts by transduction of multiple cell cycle regulators (mutant cyclin dependent kinase 4, cyclin D and telomerase reverse transcriptase). The transduced cells continued to display a stable proliferation rate and did not show cellular senescence. Furthermore, cell cycle assays showed that induction of these exogenous genes enhanced turnover of the cell cycle, especially at the G1-S phase. Furthermore, our established cell lines maintained normal diploid karyotypes at 98-100%. Our study demonstrated that bypassing p16/Rb-mediated cell arrest and activation of telomerase activity enabled efficient establishment of immortalized bovine- and porcine-derived fibroblasts. The high efficiency of establishing cell lines suggests that the networks of cell cycle regulators, especially p16/Rb-associated cell cycle arrest, have been conserved during evolution of humans, cattle, and pigs.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Biotechnology - Volume 176, 20 April 2014, Pages 50-57
نویسندگان
, , , , , , , ,