Therapeutic Time-restricted Feeding Reduces Renal Tumor Bioluminescence in Mice but Fails to Improve Anti-CTLA-4 Efficacy.
Anticancer Res
; 40(10): 5445-5456, 2020 Oct.
Article
em En
| MEDLINE
| ID: mdl-32988866
ABSTRACT
BACKGROUND/AIM:
Dietary interventions like time-restricted feeding (TRF) show promising anti-cancer properties. We examined whether therapeutic TRF alone or combined with immunotherapy would diminish renal tumor growth in mice of varying body weights. MATERIALS ANDMETHODS:
Young (7 week) chow-fed or older (27 week) high-fat diet (HFD)-fed BALB/c mice were orthotopically injected with renal tumor cells expressing luciferase. After tumor establishment, mice were randomized to ad libitum feeding or TRF +/- anti-CTLA-4. Body composition, tumor viability and growth, and immune responses were quantified.RESULTS:
TRF alone reduced renal tumor bioluminescence in older HFD-fed, but not young chow-fed mice. In the latter, TRF mitigated tumor-induced loss of lean- and fat-mass. However, TRF did not alter excised renal tumor weights or intratumoral immune responses and failed to improve anti-CTLA-4 outcomes in any mice.CONCLUSION:
Therapeutic TRF exhibits modest anti-cancer properties but fails to improve anti-CTLA-4 immune checkpoint blockade in murine renal cancer.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Jejum
/
Neoplasias Renais
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Obesidade
Tipo de estudo:
Clinical_trials
Limite:
Animals
/
Humans
Idioma:
En
Revista:
Anticancer Res
Ano de publicação:
2020
Tipo de documento:
Article
País de afiliação:
Estados Unidos