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Lee E, Jung DY, Kim JH, Patel PR, Hu X, Lee Y, Azuma Y, Wang HF, Tsitsilianos N, Shafiq U, Kwon JY, Lee HJ, Lee KW, Kim JK. Transient receptor potential vanilloid type-1 channel regulates diet-induced obesity, insulin resistance, and leptin resistance. FASEB J 2015; 29:3182-92. [PMID: 25888600 DOI: 10.1096/fj.14-268300] [Citation(s) in RCA: 100] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2014] [Accepted: 03/31/2015] [Indexed: 01/04/2023]
Abstract
Insulin resistance is a major characteristic of obesity and type 2 diabetes, but the underlying mechanism is unclear. Recent studies have shown a metabolic role of capsaicin that may be mediated via the transient receptor potential vanilloid type-1 (TRPV1) channel. In this study, TRPV1 knockout (KO) and wild-type (WT) mice (as controls) were fed a high-fat diet (HFD), and metabolic studies were performed to measure insulin and leptin action. The TRPV1 KO mice became more obese than the WT mice after HFD, partly attributed to altered energy balance and leptin resistance in the KO mice. The hyperinsulinemic-euglycemic clamp experiment showed that the TRPV1 KO mice were more insulin resistant after HFD because of the ∼40% reduction in glucose metabolism in the white and brown adipose tissue, compared with that in the WT mice. Leptin treatment failed to suppress food intake, and leptin-mediated hypothalamic signal transducer and activator of transcription (STAT)-3 activity was blunted in the TRPV1 KO mice. We also found that the TRPV1 KO mice were more obese and insulin resistant than the WT mice at 9 mo of age. Taken together, these results indicate that lacking TRPV1 exacerbates the obesity and insulin resistance associated with an HFD and aging, and our findings further suggest that TRPV1 has a major role in regulating glucose metabolism and hypothalamic leptin's effects in obesity.
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Affiliation(s)
- Eunjung Lee
- *Program in Molecular Medicine and Department of Medicine, Division of Endocrinology, Metabolism, and Diabetes, University of Massachusetts Medical School, Worcester, Massachusetts, USA; World Class University Biomodulation Major, Department of Agricultural Biotechnology and Center for Food and Bioconvergence, Seoul National University, Seoul, Republic of Korea; Traditional Alcoholic Beverage Research Team, Korea Food Research Institute, Seongnam, Republic of Korea; and Advanced Institutes of Convergence Technology, Seoul National University, Suwon, Republic of Korea
| | - Dae Young Jung
- *Program in Molecular Medicine and Department of Medicine, Division of Endocrinology, Metabolism, and Diabetes, University of Massachusetts Medical School, Worcester, Massachusetts, USA; World Class University Biomodulation Major, Department of Agricultural Biotechnology and Center for Food and Bioconvergence, Seoul National University, Seoul, Republic of Korea; Traditional Alcoholic Beverage Research Team, Korea Food Research Institute, Seongnam, Republic of Korea; and Advanced Institutes of Convergence Technology, Seoul National University, Suwon, Republic of Korea
| | - Jong Hun Kim
- *Program in Molecular Medicine and Department of Medicine, Division of Endocrinology, Metabolism, and Diabetes, University of Massachusetts Medical School, Worcester, Massachusetts, USA; World Class University Biomodulation Major, Department of Agricultural Biotechnology and Center for Food and Bioconvergence, Seoul National University, Seoul, Republic of Korea; Traditional Alcoholic Beverage Research Team, Korea Food Research Institute, Seongnam, Republic of Korea; and Advanced Institutes of Convergence Technology, Seoul National University, Suwon, Republic of Korea
| | - Payal R Patel
- *Program in Molecular Medicine and Department of Medicine, Division of Endocrinology, Metabolism, and Diabetes, University of Massachusetts Medical School, Worcester, Massachusetts, USA; World Class University Biomodulation Major, Department of Agricultural Biotechnology and Center for Food and Bioconvergence, Seoul National University, Seoul, Republic of Korea; Traditional Alcoholic Beverage Research Team, Korea Food Research Institute, Seongnam, Republic of Korea; and Advanced Institutes of Convergence Technology, Seoul National University, Suwon, Republic of Korea
| | - Xiaodi Hu
- *Program in Molecular Medicine and Department of Medicine, Division of Endocrinology, Metabolism, and Diabetes, University of Massachusetts Medical School, Worcester, Massachusetts, USA; World Class University Biomodulation Major, Department of Agricultural Biotechnology and Center for Food and Bioconvergence, Seoul National University, Seoul, Republic of Korea; Traditional Alcoholic Beverage Research Team, Korea Food Research Institute, Seongnam, Republic of Korea; and Advanced Institutes of Convergence Technology, Seoul National University, Suwon, Republic of Korea
| | - Yongjin Lee
- *Program in Molecular Medicine and Department of Medicine, Division of Endocrinology, Metabolism, and Diabetes, University of Massachusetts Medical School, Worcester, Massachusetts, USA; World Class University Biomodulation Major, Department of Agricultural Biotechnology and Center for Food and Bioconvergence, Seoul National University, Seoul, Republic of Korea; Traditional Alcoholic Beverage Research Team, Korea Food Research Institute, Seongnam, Republic of Korea; and Advanced Institutes of Convergence Technology, Seoul National University, Suwon, Republic of Korea
| | - Yoshihiro Azuma
- *Program in Molecular Medicine and Department of Medicine, Division of Endocrinology, Metabolism, and Diabetes, University of Massachusetts Medical School, Worcester, Massachusetts, USA; World Class University Biomodulation Major, Department of Agricultural Biotechnology and Center for Food and Bioconvergence, Seoul National University, Seoul, Republic of Korea; Traditional Alcoholic Beverage Research Team, Korea Food Research Institute, Seongnam, Republic of Korea; and Advanced Institutes of Convergence Technology, Seoul National University, Suwon, Republic of Korea
| | - Hsun-Fan Wang
- *Program in Molecular Medicine and Department of Medicine, Division of Endocrinology, Metabolism, and Diabetes, University of Massachusetts Medical School, Worcester, Massachusetts, USA; World Class University Biomodulation Major, Department of Agricultural Biotechnology and Center for Food and Bioconvergence, Seoul National University, Seoul, Republic of Korea; Traditional Alcoholic Beverage Research Team, Korea Food Research Institute, Seongnam, Republic of Korea; and Advanced Institutes of Convergence Technology, Seoul National University, Suwon, Republic of Korea
| | - Nicholas Tsitsilianos
- *Program in Molecular Medicine and Department of Medicine, Division of Endocrinology, Metabolism, and Diabetes, University of Massachusetts Medical School, Worcester, Massachusetts, USA; World Class University Biomodulation Major, Department of Agricultural Biotechnology and Center for Food and Bioconvergence, Seoul National University, Seoul, Republic of Korea; Traditional Alcoholic Beverage Research Team, Korea Food Research Institute, Seongnam, Republic of Korea; and Advanced Institutes of Convergence Technology, Seoul National University, Suwon, Republic of Korea
| | - Umber Shafiq
- *Program in Molecular Medicine and Department of Medicine, Division of Endocrinology, Metabolism, and Diabetes, University of Massachusetts Medical School, Worcester, Massachusetts, USA; World Class University Biomodulation Major, Department of Agricultural Biotechnology and Center for Food and Bioconvergence, Seoul National University, Seoul, Republic of Korea; Traditional Alcoholic Beverage Research Team, Korea Food Research Institute, Seongnam, Republic of Korea; and Advanced Institutes of Convergence Technology, Seoul National University, Suwon, Republic of Korea
| | - Jung Yeon Kwon
- *Program in Molecular Medicine and Department of Medicine, Division of Endocrinology, Metabolism, and Diabetes, University of Massachusetts Medical School, Worcester, Massachusetts, USA; World Class University Biomodulation Major, Department of Agricultural Biotechnology and Center for Food and Bioconvergence, Seoul National University, Seoul, Republic of Korea; Traditional Alcoholic Beverage Research Team, Korea Food Research Institute, Seongnam, Republic of Korea; and Advanced Institutes of Convergence Technology, Seoul National University, Suwon, Republic of Korea
| | - Hyong Joo Lee
- *Program in Molecular Medicine and Department of Medicine, Division of Endocrinology, Metabolism, and Diabetes, University of Massachusetts Medical School, Worcester, Massachusetts, USA; World Class University Biomodulation Major, Department of Agricultural Biotechnology and Center for Food and Bioconvergence, Seoul National University, Seoul, Republic of Korea; Traditional Alcoholic Beverage Research Team, Korea Food Research Institute, Seongnam, Republic of Korea; and Advanced Institutes of Convergence Technology, Seoul National University, Suwon, Republic of Korea
| | - Ki Won Lee
- *Program in Molecular Medicine and Department of Medicine, Division of Endocrinology, Metabolism, and Diabetes, University of Massachusetts Medical School, Worcester, Massachusetts, USA; World Class University Biomodulation Major, Department of Agricultural Biotechnology and Center for Food and Bioconvergence, Seoul National University, Seoul, Republic of Korea; Traditional Alcoholic Beverage Research Team, Korea Food Research Institute, Seongnam, Republic of Korea; and Advanced Institutes of Convergence Technology, Seoul National University, Suwon, Republic of Korea
| | - Jason K Kim
- *Program in Molecular Medicine and Department of Medicine, Division of Endocrinology, Metabolism, and Diabetes, University of Massachusetts Medical School, Worcester, Massachusetts, USA; World Class University Biomodulation Major, Department of Agricultural Biotechnology and Center for Food and Bioconvergence, Seoul National University, Seoul, Republic of Korea; Traditional Alcoholic Beverage Research Team, Korea Food Research Institute, Seongnam, Republic of Korea; and Advanced Institutes of Convergence Technology, Seoul National University, Suwon, Republic of Korea
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