Regulation of adult female germline stem cells by nutrient-responsive signaling.
Curr Opin Insect Sci
; 37: 16-22, 2020 02.
Article
em En
| MEDLINE
| ID: mdl-32070932
ABSTRACT
Insect oogenesis is greatly affected by nutrient availability. When nutrients are abundant, oocytes are rapidly generated, but the process is slowed to conserve energy under nutrient-deficient conditions. To properly allocate limited resources toward oogenesis, systemic factors coordinate the behavioral response of ovarian germline stem cells (GSCs) to nutritional inputs by acting on the GSC itself, GSC supporting cells (the niche), or the adipose tissue surrounding the ovary. In this review, we describe current knowledge of the Drosophila ovarian GSC-niche-adipocyte system and major nutrient sensing pathways (insulin/IGF signaling, TOR signaling, and GCN2-dependent amino acid sensing) that intrinsically or extrinsically regulate GSC responses to nutrient signals.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Transdução de Sinais
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Drosophila
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Células-Tronco de Oogônios
Idioma:
En
Ano de publicação:
2020
Tipo de documento:
Article