The thermogenic activity of adjacent adipocytes fuels the progression of ccRCC and compromises anti-tumor therapeutic efficacy.
PKA
PTHrP
adipocytes browning
cell-to-cell communication
clear cell renal cell carcinoma
lactate
lung metastasis
tyrosine kinase inhibitors
Journal
Cell metabolism
ISSN: 1932-7420
Titre abrégé: Cell Metab
Pays: United States
ID NLM: 101233170
Informations de publication
Date de publication:
05 10 2021
05 10 2021
Historique:
received:
28
07
2020
revised:
08
07
2021
accepted:
17
08
2021
pubmed:
12
9
2021
medline:
8
4
2022
entrez:
11
9
2021
Statut:
ppublish
Résumé
Clear cell renal cell carcinoma (ccRCC) preferentially invades into perinephric adipose tissue (PAT), a process associated with poor prognosis. However, the detailed mechanisms underlying this interaction remain elusive. Here, we describe a bi-directional communication between ccRCC cells and the PAT. We found that ccRCC cells secrete parathyroid-hormone-related protein (PTHrP) to promote the browning of PAT by PKA activation, while PAT-mediated thermogenesis results in the release of excess lactate to enhance ccRCC growth, invasion, and metastasis. Further, tyrosine kinase inhibitors (TKIs) extensively used in the treatment of ccRCC enhanced this vicious cycle of ccRCC-PAT communication by promoting the browning of PAT. However, if this cross-communication was short circuited by the pharmacological suppression of adipocyte browning via H89 or KT5720, the anti-tumor efficacy of the TKI, sunitinib, was enhanced. These results suggest that ccRCC-PAT cross-communication has important clinical relevance, and use of combined therapy holds great promise in enhancing the efficacy of TKIs.
Identifiants
pubmed: 34508696
pii: S1550-4131(21)00375-2
doi: 10.1016/j.cmet.2021.08.012
pii:
doi:
Substances chimiques
Sunitinib
V99T50803M
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
2021-2039.e8Commentaires et corrections
Type : CommentIn
Informations de copyright
Copyright © 2021 Elsevier Inc. All rights reserved.
Déclaration de conflit d'intérêts
Declaration of interests J. Liu has filed a provisional pending patent (CNIPA; patent number: 202010437336.X) regarding treatment of ccRCC tumors with the combination of sunitinib and H89.