Construction of developmental lineage relationships in the mouse mammary gland by single-cell RNA profiling

Bhupinder Pal, Yunshun Chen, François Vaillant, Paul Jamieson, Lavinia Gordon, Anne C. Rios, Stephen Wilcox, Naiyang Fu, Kevin He Liu, Felicity C. Jackling, Melissa J. Davis, Geoffrey J. Lindeman, Gordon K. Smyth, Jane E. Visvader

Onderzoeksoutput: Bijdrage aan tijdschriftArtikelpeer review

124 Citaten (Scopus)

Samenvatting

The mammary epithelium comprises two primary cellular lineages, but the degree of heterogeneity within these compartments and their lineage relationships during development remain an open question. Here we report single-cell RNA profiling of mouse mammary epithelial cells spanning four developmental stages in the post-natal gland. Notably, the epithelium undergoes a large-scale shift in gene expression from a relatively homogeneous basal-like program in pre-puberty to distinct lineage-restricted programs in puberty. Interrogation of single-cell transcriptomes reveals different levels of diversity within the luminal and basal compartments, and identifies an early progenitor subset marked by CD55. Moreover, we uncover a luminal transit population and a rare mixed-lineage cluster amongst basal cells in the adult mammary gland. Together these findings point to a developmental hierarchy in which a basal-like gene expression program prevails in the early post-natal gland prior to the specification of distinct lineage signatures, and the presence of cellular intermediates that may serve as transit or lineage-primed cells.

Originele taal-2Engels
Artikelnummer1627
TijdschriftNature Communications
Volume8
Nummer van het tijdschrift1
DOI's
StatusGepubliceerd - 1 dec. 2017
Extern gepubliceerdJa

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