期刊
STEM CELLS
卷 26, 期 12, 页码 3068-3074出版社
WILEY-BLACKWELL
DOI: 10.1634/stemcells.2008-0530
关键词
OCT4; Embryonic stem cells; Cancer; Spliced variants; OCT4B1
资金
- Iran National Science Foundation [85093/27]
- Medical Research Council
- ESTOOLS
- MRC [G0300273, G0700785] Funding Source: UKRI
- Medical Research Council [G0300273, G0700785] Funding Source: researchfish
OCT4 is a master regulator of self-renewal in embryonic stem cells and can potentially encode two spliced variants, designated OCT4A and OCT4B. We have examined the expression pattern of these OCT4 isoforms in various human pluripotent and nonpluripotent cells. Our data revealed that whereas OCT4A expression is restricted to embryonic stem (ES) and embryonal carcinoma (EC) cells, OCT4B can be detected in various nonpluripotent cell types. Furthermore, we detected a novel OCT4 spliced variant, designated OCT4B1, that is expressed primarily in human ES and EC cells and is downregulated following their differentiation. We also found a significantly higher level of OCT4B1 expression in stage-specific embryonic antigen-3 (SSEA3)(+) compared with SSEA3(+) subpopulations of cultured ES cells. Taken together, our data demonstrated a distinctive expression pattern for OCT4 spliced variants in different cell types and highlight the necessity of defining the type of OCT4 when addressing the expression of this gene in different human cells. STEM CELLS 2008; 26: 3068-3074
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