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Adipocyte p62/SQSTM1 suppresses tumorigenesis through opposite regulations of metabolism in adipose tissue and tumor.
Cancer Cell 33, 770-784.e6 (2018)
Obesity is a leading risk factor for cancer. However, understanding the crosstalk between adipocytes and tumor cells in vivo, independently of dietary contributions, is a major gap in the field. Here we used a prostate cancer (PCa) mouse model in which the signaling adaptor p62/Sqstm1 is selectively inactivated in adipocytes. p62 loss in adipocytes results in increased osteopontin secretion, which mediates tumor fatty acid oxidation and invasion, leading to aggressive metastatic PCa in vivo. Furthermore, p62 deficiency triggers in adipocytes a general shutdown of energy-utilizing pathways through mTORC1 inhibition, which supports nutrient availability for cancer cells. This reveals a central role of adipocyte's p62 in the symbiotic adipose tissue-tumor collaboration that enables cancer metabolic fitness.
Impact Factor
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Anmerkungen
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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Schlagwörter
Cpt1 ; Adipocyte ; Cancer ; Fatty Acid Oxidation ; Metabolic Reprogramming ; Obesity ; Osteopontin ; P62 ; Prostate ; Sequestosome-1
Sprache
Veröffentlichungsjahr
2018
HGF-Berichtsjahr
2018
ISSN (print) / ISBN
1535-6108
e-ISSN
1878-3686
Zeitschrift
Cancer Cell
Quellenangaben
Band: 33,
Heft: 4,
Seiten: 770-784.e6
Verlag
Cell Press
Verlagsort
Cambridge, Mass.
Begutachtungsstatus
Peer reviewed
Institut(e)
Institute of Diabetes and Obesity (IDO)
POF Topic(s)
30201 - Metabolic Health
90000 - German Center for Diabetes Research
90000 - German Center for Diabetes Research
Forschungsfeld(er)
Helmholtz Diabetes Center
PSP-Element(e)
G-502200-001
G-501900-221
G-501900-221
Scopus ID
85044003596
PubMed ID
29634950
Erfassungsdatum
2018-05-25