scholarly journals Transcriptional control of stem cell maintenance in the Drosophila intestine

Development ◽  
2010 ◽  
Vol 137 (5) ◽  
pp. 705-714 ◽  
Author(s):  
A. J. Bardin ◽  
C. N. Perdigoto ◽  
T. D. Southall ◽  
A. H. Brand ◽  
F. Schweisguth
Keyword(s):  
Stem Cell ◽  
Transcriptional Control ◽  
Stem Cell Maintenance ◽  
Cell Maintenance

scholarly journals The RNA binding protein Swm is critical for Drosophila melanogaster intestinal progenitor cell maintenance

2022 ◽  
Author(s):  
Ishara S Ariyapala ◽  
Kasun Buddika ◽  
Heather A Hundley ◽  
Brian Calvi ◽  
Nicholas Sokol
Keyword(s):  
Stem Cell ◽  
Progenitor Cells ◽  
Progenitor Cell ◽  
Transcriptional Control ◽  
Rna Binding ◽  
Rna Binding Protein ◽  
Adult Stem Cell ◽  
Stem Cell Maintenance ◽  
And Function ◽  
Cell Maintenance

The regulation of stem cell survival, self-renewal, and differentiation is critical for the maintenance of tissue homeostasis. Although the involvement of signaling pathways and transcriptional control mechanisms in stem cell regulation have been extensively investigated, the role of post-transcriptional control is still poorly understood. Here we show that the nuclear activity of the RNA-binding protein Second Mitotic Wave Missing (Swm) is critical for Drosophila intestinal stem cells (ISCs) and their daughter cells, enteroblasts (EBs), to maintain their identity and function. Loss of swm in these intestinal progenitor cells leads ISCs and EBs to lose defined cell identities, fail to proliferate, and detach from the basement membrane, resulting in severe progenitor cell loss. swm loss further causes nuclear accumulation of poly(A)+ RNA in progenitor cells. Swm associates with transcripts involved in epithelial cell maintenance and adhesion, and the loss of swm, while not generally affecting the levels of these Swm-bound mRNAs, leads to elevated expression of proteins encoded by some of them, including the fly orthologs of Filamin and Talin. Taken together, this study indicates a role for Swm in adult stem cell maintenance, and raises the possibility that nuclear post-transcriptional gene regulation plays vital roles in controlling adult stem cell maintenance and function.

Transcriptional control of stem cell maintenance in the Drosophila intestine

2010 ◽  
Vol 123 (5) ◽  
pp. e1-e1
Author(s):  
A. J. Bardin ◽  
C. N. Perdigoto ◽  
T. D. Southall ◽  
A. H. Brand ◽  
F. Schweisguth
Keyword(s):  
Stem Cell ◽  
Transcriptional Control ◽  
Stem Cell Maintenance ◽  
Cell Maintenance
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