登入 臺大生技所
年度 | 2022 |
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全部作者 | 宋麗英 ,Chen, W. J., Huang, W. K., Pather, S. R., Chang, W. F., Sung, L. Y., Wu, H. C., Liao, M. Y., Lee, C. C., Wu, H. H., Wu, C. Y., Liao, K. S., Lin, C. Y., Yang, S. C., Lin, H., Lai, P. L., Ng, C. H., Hu, C. M., Chen, I. C., Chuang, C. H., Lai, C. Y., Lin, P. Y., Lee, Y. C., Schuyler, S. C., Schambach, A., Lu, F. L., Lu, J. |
論文名稱 | Podocalyxin-Like Protein 1 Regulates Pluripotency through the Cholesterol Biosynthesis Pathway |
期刊名稱 | Adv Sci (Weinh). |
卷數 | 10 |
期數 | 1 |
期刊等級 | SCI |
發表日期 | 2022-11-04 |
摘要 | Deciphering signaling mechanisms critical for the extended pluripotent stem cell (EPSC) state and primed pluripotency is necessary for understanding embryonic development. Here, a membrane protein, podocalyxin-like protein 1 (PODXL) as being essential for extended and primed pluripotency, is identified. Alteration of PODXL expression levels affects self-renewal, protein expression of c-MYC and telomerase, and induced pluripotent stem cell (iPSC) and EPSC colony formation. PODXL is the first membrane protein reported to regulate de novo cholesterol biosynthesis, and human pluripotent stem cells (hPSCs) are more sensitive to cholesterol depletion than fibroblasts. The addition of exogenous cholesterol fully restores PODXL knockdown-mediated loss of pluripotency. PODXL affects lipid raft dynamics via the regulation of cholesterol. PODXL recruits the RAC1/CDC42/actin network to regulate SREBP1 and SREBP2 maturation and lipid raft dynamics. Single-cell RNA sequencing reveals PODXL overexpression enhanced chimerism between human cells in mouse host embryos (hEPSCs 57%). Interestingly, in the human-mouse chimeras, laminin and collagen signaling-related pathways are dominant in PODXL overexpressing cells. It is concluded that cholesterol regulation via PODXL signaling is critical for ESC/EPSC. |
語言 | 英文 |
參考連結 | https://pubmed.ncbi.nlm.nih.gov/36373710/ |