Abstract:
:How hematopoietic stem cells (HSCs) maintain the balance of self-renewal and differentiation could be partially ascribed to asymmetric and symmetric division patterns. However, a simple and effective method to detect stem cell division patterns is lacking. In this study, we introduce a strategy to describe stem cells division patterns with high spatial resolution at the single-cell level. We show that the fate determinant, Numb, exhibits low expression levels in HSCs that increase upon the initiation of differentiation. Using this single-cell immunofluorescence technique, we found that HSCs mainly undergo symmetric self-renewal in the presence of only stem cell factor, but with the addition of trombopoietin this division pattern is transformed into a symmetric commitment dominant mode in vitro. In addition, our study indicated that the division pattern cannot be defined by cell size or the nuclear/cytoplasm ratio. These findings collectively demonstrate that this single-cell immunofluorescence technique provides a new biological strategy in stem cell division research, and can be more widely applied given its flexibility, easy operability, and inexpensiveness.
journal_name
Stem Cells Devjournal_title
Stem cells and developmentauthors
Yang WZ,Yu WY,Chen T,Wang XF,Dong F,Xie ME,Gong YM,Liang HY,Fu WCdoi
10.1089/scd.2018.0239subject
Has Abstractpub_date
2019-07-15 00:00:00pages
954-960issue
14eissn
1547-3287issn
1557-8534journal_volume
28pub_type
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