RT Journal Article
SR Electronic
T1 Time-restricted Feeding Attenuates High-fat Diet-enhanced Spontaneous Metastasis of Lewis Lung Carcinoma in Mice
JF Anticancer Research
JO Anticancer Res
FD International Institute of Anticancer Research
SP 1739
OP 1748
DO 10.21873/anticanres.13280
VO 39
IS 4
A1 LIN YAN
A1 SNEHA SUNDARAM
A1 AARON A. MEHUS
A1 MATTHEW J. PICKLO
YR 2019
UL http://ar.iiarjournals.org/content/39/4/1739.abstract
AB Background/Aim: Obesity is a risk factor for cancer. Disruption of the daily feeding and fasting rhythm can contribute to obesity. This study tested the hypothesis that time-restricted feeding (TRF) attenuates obesity-enhanced metastasis. Materials and Methods: In a spontaneous metastasis model of Lewis lung carcinoma (LLC), male C57BL/6 mice were fed the standard AIN93G diet or a high-fat diet (HFD) with or without dark-phase restricted feeding (12 h per day) for 10 weeks. Pulmonary metastases from a subcutaneous tumor were quantified. Results: The number and size of lung metastases were greater in the HFD group than in the AIN93G group, but did not differ between the TRF and AIN93G groups. TRF prevented HFD-induced increases in plasma concentrations of glucose, insulin, proinflammatory cytokines (leptin, monocyte chemotactic protein-1, plasminogen activator inhibitor-1), and angiogenic factors (angiopoietin-2, hepatic growth factor, vascular endothelial growth factor). Conclusion: TRF attenuates the HFD-enhanced spontaneous metastasis of LLC in mice.