AMER1 deficiency promotes the distant metastasis of colorectal cancer by inhibiting SLC7A11- and FTL-mediated ferroptosis.
AMER1
CP: Cancer
FTL
SLC7A11
colorectal cancer
ferroptosis
metastasis
Journal
Cell reports
ISSN: 2211-1247
Titre abrégé: Cell Rep
Pays: United States
ID NLM: 101573691
Informations de publication
Date de publication:
26 09 2023
26 09 2023
Historique:
received:
24
01
2023
revised:
21
07
2023
accepted:
24
08
2023
medline:
5
10
2023
pubmed:
8
9
2023
entrez:
8
9
2023
Statut:
ppublish
Résumé
The crosstalk between ferroptosis and cancer metastasis remains unclear. Here, we identify AMER1 as a key regulator of ferroptosis. AMER1 loss causes resistance to ferroptosis in colorectal cancer (CRC) cells. Interestingly, AMER1-deficient CRC cells preferentially form distant metastases, while AMER1-naive CRC cells mainly invade lymph nodes. Moreover, the ferroptosis inhibitor liproxstatin-1 effectively promotes hematogenous transfer of AMER1-naive cells. Mechanistically, AMER1 binds to SLC7A11 and ferritin light chain (FTL) and recruits β-TrCP1/2, which degrade SLC7A11 and FTL by ubiquitination. Therefore, AMER1 deficiency increases cellular cystine levels but decreases the pool of labile free iron, thereby enhancing resistance to ferroptosis in CRC cells. Thus, AMER1 deficiency increases the survival of CRC cells in the blood under conditions of high oxidative stress and then promotes hematogenous metastasis of CRC. In conclusion, AMER1 mediates the crosstalk between ferroptosis and cancer metastasis, which provides a window of opportunity for treating metastatic colorectal cancer patients with AMER1 mutations.
Identifiants
pubmed: 37682704
pii: S2211-1247(23)01121-X
doi: 10.1016/j.celrep.2023.113110
pii:
doi:
Substances chimiques
Apoferritins
9013-31-4
Cystine
48TCX9A1VT
SLC7A11 protein, human
0
Amino Acid Transport System y+
0
FTL protein, human
0
AMER1 protein, human
0
Tumor Suppressor Proteins
0
Adaptor Proteins, Signal Transducing
0
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
113110Informations de copyright
Copyright © 2023 The Authors. Published by Elsevier Inc. All rights reserved.
Déclaration de conflit d'intérêts
Declaration of interests The authors declare no conflict of interest.