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Multiple stem cells, population asymmetry and position-dependent heterogeneity emerge as common features of a niche for Drosophila Follicle Stem Cells and mammalian Intestinal Stem Cells

Posted by on June 16th, 2017

A discussion of “Alternative direct stem cell derivatives defined by stem cell location and graded Wnt signalling,” Nat Cell Biol, 2017. 19(5): p. 433-444.   We have recently revised the model of Follicle Stem Cell (FSC) organization in the Drosophila ovary, showing that there is a much larger population of stem cells than formerly realized, that[…]

Visualizing stem cells at home

Posted by on June 13th, 2011

The Drosophila ovary is stunningly beautiful, and a playground of wonderful biological questions.  Within the germarium alone, developmental biologists can look at asymmetric division, stem cells and their niches, cell migration, and cell specification.  A recent paper in Development describes a technique allowing the in vitro imaging of a fruit fly ovary, and opens the[…]

In Development this week (Vol. 138, Issue 2)

Posted by on December 21st, 2010

Boning up on stem cell Igf2-P2 function The insulin-like growth factor (IGF)/insulin signalling pathway regulates cell proliferation, differentiation, aging and life span. During embryonic development, transcription of the mouse and human Igf2 gene is tightly regulated by four alternative promoters whose specific roles are unclear. Now, Sylvie Nathalie Hardouin and colleagues reveal that the transcriptional[…]