کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9921325 | 1559213 | 2005 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Icariin-mediated modulation of cell cycle and p53 during cardiomyocyte differentiation in embryonic stem cells
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علم عصب شناسی
علوم اعصاب سلولی و مولکولی
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چکیده انگلیسی
The aim of this study was to investigate the possible inducible effects and to clarify the modulation by icariin of cell cycle and p53 expression in the differentiation of embryonic stem cells into cardiomyocytes in vitro. Embryonic stem cells were cultivated as embryoid bodies in hanging drops and induced to differentiate into cardiomyocytes by icariin at 10â7 M. Cardiomyocytes were characterized by the expression of sarcomeric proteins, α-actinin and cardiac troponin T, by immunocytochemistry. Flow cytometry revealed that 10â7 M icariin treatment for 48 h significantly induced the accumulation of cells in G0/G1 and reduced the proportion of cells in S phase. A marked increase in apoptosis rate was observed 48 h after icariin treatment. Icariin resulted in significantly increased expressions of p53 mRNA and protein, as determined by reverse transcription-polymerase chain reaction and Western blot analysis. During day 7 + 0 and 7 + 9 cardiac developmental stage, 10â7 M icariin increased the level of p53 mRNA, but caused a parallel decrease in the level of p53 protein. In conclusion, icariin at 10â7 M facilitated the directional differentiation of embryonic stem cells into cardiomyocytes. Results showed p53 to be an important regulator in the differentiation in embryonic stem cells treated with 10â7 M icariin, controlling or adjusting the balance between differentiated cells and cells undergoing apoptosis.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: European Journal of Pharmacology - Volume 514, Issues 2â3, 9 May 2005, Pages 99-110
Journal: European Journal of Pharmacology - Volume 514, Issues 2â3, 9 May 2005, Pages 99-110
نویسندگان
Danyan Zhu, Linhai Qu, Xiangnan Zhang, Yijia Lou,