RRC ID 74685
Author Saha B, Acharjee S, Ghosh G, Dasgupta P, Prasad M.
Title Germline protein, Cup, non-cell autonomously limits migratory cell fate in Drosophila oogenesis.
Journal PLoS Genet
Abstract Specification of migratory cell fate from a stationary population is complex and indispensable both for metazoan development as well for the progression of the pathological condition like tumor metastasis. Though this cell fate transformation is widely prevalent, the molecular understanding of this phenomenon remains largely elusive. We have employed the model of border cells (BC) in Drosophila oogenesis and identified germline activity of an RNA binding protein, Cup that limits acquisition of migratory cell fate from the neighbouring follicle epithelial cells. As activation of JAK-STAT in the follicle cells is critical for BC specification, our data suggest that Cup, non-cell autonomously restricts the domain of JAK-STAT by activating Notch in the follicle cells. Employing genetics and Delta endocytosis assay, we demonstrate that Cup regulates Delta recycling in the nurse cells through Rab11GTPase thus facilitating Notch activation in the adjacent follicle cells. Since Notch and JAK-STAT are antagonistic, we propose that germline Cup functions through Notch and JAK-STAT to modulate BC fate specification from their static epithelial progenitors.
Volume 19(2)
Pages e1010631
Published 2023-2-1
DOI 10.1371/journal.pgen.1010631
PMID 36791149
PMC PMC9974129
MeSH Animals Drosophila* / metabolism Drosophila Proteins* / genetics Drosophila Proteins* / metabolism Drosophila melanogaster / genetics Drosophila melanogaster / metabolism Germ Cells / metabolism Oogenesis / genetics STAT Transcription Factors / genetics STAT Transcription Factors / metabolism Signal Transduction / genetics
IF 5.175