Midkine as a driver of age-related changes and increase in mammary tumorigenesis.
aging
breast cancer risk
breast tumorigenesis
mammary tumors
midkine
single-cell profiling
Journal
Cancer cell
ISSN: 1878-3686
Titre abrégé: Cancer Cell
Pays: United States
ID NLM: 101130617
Informations de publication
Date de publication:
26 Sep 2024
26 Sep 2024
Historique:
received:
17
01
2024
revised:
30
07
2024
accepted:
11
09
2024
medline:
5
10
2024
pubmed:
5
10
2024
entrez:
4
10
2024
Statut:
aheadofprint
Résumé
Aging is a pivotal risk factor for cancer, yet the underlying mechanisms remain poorly defined. Here, we explore age-related changes in the rat mammary gland by single-cell multiomics. Our findings include increased epithelial proliferation, loss of luminal identity, and decreased naive B and T cells with age. We discover a luminal progenitor population unique to old rats with profiles reflecting precancerous changes and identify midkine (Mdk) as a gene upregulated with age and a regulator of age-related luminal progenitors. Midkine treatment of young rats mimics age-related changes via activating PI3K-AKT-SREBF1 pathway and promotes nitroso-N-methylurea-induced mammary tumorigenesis. Midkine levels increase with age in human blood and mammary epithelium, and higher MDK in normal breast tissue is associated with higher breast cancer risk in younger women. Our findings reveal a link between aging and susceptibility to tumor initiation and identify midkine as a mediator of age-dependent increase in breast tumorigenesis.
Identifiants
pubmed: 39366375
pii: S1535-6108(24)00350-7
doi: 10.1016/j.ccell.2024.09.002
pii:
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Informations de copyright
Copyright © 2024 The Author(s). Published by Elsevier Inc. All rights reserved.
Déclaration de conflit d'intérêts
Declaration of interests K.P. serves on the Scientific Advisory Board of Ideaya Biosciences and Scorpion Therapeutics, holds equity options in Scorpion Therapeutics and Ideaya Biosciences, and receives sponsored research funding from Novartis where she also consults. L.E.S. is current employee of Astra-Zeneca. H.W.L. receives research funding from Novartis.