Identification of quiescent and spatially restricted mammary stem cells that are hormone responsive.

Nature cell biology (2017-02-14)
Nai Yang Fu, Anne C Rios, Bhupinder Pal, Charity W Law, Paul Jamieson, Ruijie Liu, François Vaillant, Felicity Jackling, Kevin He Liu, Gordon K Smyth, Geoffrey J Lindeman, Matthew E Ritchie, Jane E Visvader

Despite accumulating evidence for a mammary differentiation hierarchy, the basal compartment comprising stem cells remains poorly characterized. Through gene expression profiling of Lgr5+ basal epithelial cells, we identify a new marker, Tetraspanin8 (Tspan8). Fractionation based on Tspan8 and Lgr5 expression uncovered three distinct mammary stem cell (MaSC) subsets in the adult mammary gland. These exist in a largely quiescent state but differ in their reconstituting ability, spatial localization, and their molecular and epigenetic signatures. Interestingly, the deeply quiescent MaSC subset (Lgr5+Tspan8hi) resides within the proximal region throughout life, and has a transcriptome strikingly similar to that of claudin-low tumours. Lgr5+Tspan8hi cells appear to originate from the embryonic mammary primordia before switching to a quiescent state postnatally but can be activated by ovarian hormones. Our findings reveal an unexpected degree of complexity within the adult MaSC compartment and identify a dormant subset poised for activation in response to physiological stimuli.

Référence de produit
Description du produit

Anti-Tspan-8 Antibody, clone 40/15-1B11-63-76-8, clone 40/15-1B11-63-76-8, from rat
Anti-Tspan8-C Antibody, clone 51/15-8G4-17-42-1, clone 51/15-8G4-17-42-1, from rat

Réseaux sociaux

LinkedIn icon
Twitter icon
Facebook Icon
Instagram Icon


Recherche. Développement. Production

Nous sommes un des tout premiers fournisseurs du secteur mondial des Sciences de la vie proposant des solutions et des services pour la recherche, le développement et la production en biotechnologies, et le développement et la production de produits thérapeutiques pharmaceutiques.

© 2021 Merck KGaA, Darmstadt, Allemagne et/ou ses sociétés affiliées. Tous droits réservés.

La reproduction d'une quelconque partie du contenu de ce site est strictement interdite sans autorisation.