Effects of programmed cell death induction method on somatic cell development
Sang-Hwan Kim
In this study, to analyze whether artificial regulation of apoptosis in the development of somatic cells can affect the stable growth and development of cells, 20 alpha-hydroxysteroid dehydrogenase (20α-HSD) and rapamycin were treated to induce apoptosis and autophagy in the both skin and muscle cells. Respectively, and 3-methyladenine was supplemented to inhibit cell death. Our results show that stimulation with rapamycin activated autophagy in both types of cells, but increased apoptosis more than autophagy in the case of skin cells. These results indicate that there was a difference in the expression of survival factors and cell development depending on the type of cell. In particular, in the expression of autophagy-related gene (MAP1LC3A) was higher than that of Casp-3, an apoptosis factor. Furthermore, cell development was the highest in all cell groups cultured by artificially inducing autophagy, however the lowest in the apoptosis-inhibited group. Especially, the noteworthy result of this study was that when apoptosis was induced using 20α-HSD, it was possible to induce apoptosis in both skin and muscle cells. Therefore, the main point of this study is that apoptosis induced during cell culture plays a pivotal role in cell remodeling.
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