Isocitrate dehydrogenase 2 protects mice from high-fat diet-induced metabolic stress by limiting oxidative damage to the mitochondria from brown adipose tissue

Jae Ho Lee; Younghoon Go; Do Young Kim; Sun Hee Lee; Ok Hee Kim; Yong Hyun Jeon; Taeg Kyu Kwon; Jae Hoon Bae; Dae Kyu Song; Im Joo Rhyu; In Kyu Lee; Minho Shong; Byung Chul Oh; Christopher Petucci; Jeen Woo Park; Timothy F. Osborne; Seung Soon Im

doi:10.1038/s12276-020-0379-z

Isocitrate dehydrogenase 2 protects mice from high-fat diet-induced metabolic stress by limiting oxidative damage to the mitochondria from brown adipose tissue

Jae Ho Lee, Younghoon Go, Do Young Kim, Sun Hee Lee, Ok Hee Kim, Yong Hyun Jeon, Taeg Kyu Kwon, Jae Hoon Bae, Dae Kyu Song, Im Joo Rhyu, In Kyu Lee, Minho Shong, Byung Chul Oh, Christopher Petucci, Jeen Woo Park, Timothy F. Osborne, Seung Soon Im

Department of Biomedical Sciences

Research output: Contribution to journal › Article › peer-review

27 Citations (Scopus)

Abstract

Isocitrate dehydrogenase 2 (IDH2) is an NADP⁺-dependent enzyme that catalyzes the oxidative decarboxylation of isocitrate to α-ketoglutarate in the mitochondrial matrix, and is critical for the production of NADPH to limit the accumulation of mitochondrial reactive oxygen species (ROS). Here, we showed that high-fat diet (HFD) feeding resulted in accelerated weight gain in the IDH2KO mice due to a reduction in whole-body energy expenditure. Moreover, the levels of NADP⁺, NADPH, NAD⁺, and NADH were significantly decreased in the brown adipose tissue (BAT) of the HFD-fed IDH2KO animals, accompanied by decreased mitochondrial function and reduced expression of key genes involved in mitochondrial biogenesis, energy expenditure, and ROS resolution. Interestingly, these changes were partially reversed when the antioxidant butylated hydroxyanisole was added to the HFD. These observations reveal a crucial role for IDH2 in limiting ROS-dependent mitochondrial damage when BAT metabolism is normally enhanced to limit weight gain in response to dietary caloric overload.

Original language	English
Pages (from-to)	238-252
Number of pages	15
Journal	Experimental and Molecular Medicine
Volume	52
Issue number	2
DOIs	https://doi.org/10.1038/s12276-020-0379-z
Publication status	Published - 2020 Feb 1

Bibliographical note

Funding Information:
This study was supported by grants from the Korea Research Foundation, an NRF grant funded by the Korea Government (MSIP) (2016R1A2B4008516 and 2019R1H1A2079849), the Medical Research Center (2014R1A5A2010008), and the Korea Health Technology R&D Project through the Korea Health Industry Development Institute (KHIDI), funded by the Ministry of Health & Welfare, Republic of Korea (HR18C0012) to S.S.I., an NIH grant (RO1HL48044) to T.F.O., GRL 2017K1A1A2013124 to M.S. and a grant of Korea Health Technology R&D Project through the Korea Health Industry Development Institute (KHIDI) funded by the Minstry of Health and Welfare, the Republic of Korea (HI16C1501) to I.K.L. We thank Dan Kelly for comments on the paper and Lorenzo Thomas for help with the paper organization and submission.

Publisher Copyright:
© 2020, The Author(s).

ASJC Scopus subject areas

Biochemistry
Molecular Medicine
Molecular Biology
Clinical Biochemistry

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10.1038/s12276-020-0379-z

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Lee, J. H., Go, Y., Kim, D. Y., Lee, S. H., Kim, O. H., Jeon, Y. H., Kwon, T. K., Bae, J. H., Song, D. K., Rhyu, I. J., Lee, I. K., Shong, M., Oh, B. C., Petucci, C., Park, J. W., Osborne, T. F., & Im, S. S. (2020). Isocitrate dehydrogenase 2 protects mice from high-fat diet-induced metabolic stress by limiting oxidative damage to the mitochondria from brown adipose tissue. Experimental and Molecular Medicine, 52(2), 238-252. https://doi.org/10.1038/s12276-020-0379-z

Lee, JH, Go, Y, Kim, DY, Lee, SH, Kim, OH, Jeon, YH, Kwon, TK, Bae, JH, Song, DK, Rhyu, IJ, Lee, IK, Shong, M, Oh, BC, Petucci, C, Park, JW, Osborne, TF & Im, SS 2020, 'Isocitrate dehydrogenase 2 protects mice from high-fat diet-induced metabolic stress by limiting oxidative damage to the mitochondria from brown adipose tissue', Experimental and Molecular Medicine, vol. 52, no. 2, pp. 238-252. https://doi.org/10.1038/s12276-020-0379-z

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title = "Isocitrate dehydrogenase 2 protects mice from high-fat diet-induced metabolic stress by limiting oxidative damage to the mitochondria from brown adipose tissue",

abstract = "Isocitrate dehydrogenase 2 (IDH2) is an NADP+-dependent enzyme that catalyzes the oxidative decarboxylation of isocitrate to α-ketoglutarate in the mitochondrial matrix, and is critical for the production of NADPH to limit the accumulation of mitochondrial reactive oxygen species (ROS). Here, we showed that high-fat diet (HFD) feeding resulted in accelerated weight gain in the IDH2KO mice due to a reduction in whole-body energy expenditure. Moreover, the levels of NADP+, NADPH, NAD+, and NADH were significantly decreased in the brown adipose tissue (BAT) of the HFD-fed IDH2KO animals, accompanied by decreased mitochondrial function and reduced expression of key genes involved in mitochondrial biogenesis, energy expenditure, and ROS resolution. Interestingly, these changes were partially reversed when the antioxidant butylated hydroxyanisole was added to the HFD. These observations reveal a crucial role for IDH2 in limiting ROS-dependent mitochondrial damage when BAT metabolism is normally enhanced to limit weight gain in response to dietary caloric overload.",

author = "Lee, {Jae Ho} and Younghoon Go and Kim, {Do Young} and Lee, {Sun Hee} and Kim, {Ok Hee} and Jeon, {Yong Hyun} and Kwon, {Taeg Kyu} and Bae, {Jae Hoon} and Song, {Dae Kyu} and Rhyu, {Im Joo} and Lee, {In Kyu} and Minho Shong and Oh, {Byung Chul} and Christopher Petucci and Park, {Jeen Woo} and Osborne, {Timothy F.} and Im, {Seung Soon}",

note = "Funding Information: This study was supported by grants from the Korea Research Foundation, an NRF grant funded by the Korea Government (MSIP) (2016R1A2B4008516 and 2019R1H1A2079849), the Medical Research Center (2014R1A5A2010008), and the Korea Health Technology R&D Project through the Korea Health Industry Development Institute (KHIDI), funded by the Ministry of Health & Welfare, Republic of Korea (HR18C0012) to S.S.I., an NIH grant (RO1HL48044) to T.F.O., GRL 2017K1A1A2013124 to M.S. and a grant of Korea Health Technology R&D Project through the Korea Health Industry Development Institute (KHIDI) funded by the Minstry of Health and Welfare, the Republic of Korea (HI16C1501) to I.K.L. We thank Dan Kelly for comments on the paper and Lorenzo Thomas for help with the paper organization and submission. Publisher Copyright: {\textcopyright} 2020, The Author(s).",

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AU - Lee, Jae Ho

AU - Go, Younghoon

AU - Kim, Do Young

AU - Lee, Sun Hee

AU - Kim, Ok Hee

AU - Jeon, Yong Hyun

AU - Kwon, Taeg Kyu

AU - Bae, Jae Hoon

AU - Song, Dae Kyu

AU - Rhyu, Im Joo

AU - Lee, In Kyu

AU - Shong, Minho

AU - Oh, Byung Chul

AU - Petucci, Christopher

AU - Park, Jeen Woo

AU - Osborne, Timothy F.

AU - Im, Seung Soon

N1 - Funding Information: This study was supported by grants from the Korea Research Foundation, an NRF grant funded by the Korea Government (MSIP) (2016R1A2B4008516 and 2019R1H1A2079849), the Medical Research Center (2014R1A5A2010008), and the Korea Health Technology R&D Project through the Korea Health Industry Development Institute (KHIDI), funded by the Ministry of Health & Welfare, Republic of Korea (HR18C0012) to S.S.I., an NIH grant (RO1HL48044) to T.F.O., GRL 2017K1A1A2013124 to M.S. and a grant of Korea Health Technology R&D Project through the Korea Health Industry Development Institute (KHIDI) funded by the Minstry of Health and Welfare, the Republic of Korea (HI16C1501) to I.K.L. We thank Dan Kelly for comments on the paper and Lorenzo Thomas for help with the paper organization and submission. Publisher Copyright: © 2020, The Author(s).

PY - 2020/2/1

Y1 - 2020/2/1

N2 - Isocitrate dehydrogenase 2 (IDH2) is an NADP+-dependent enzyme that catalyzes the oxidative decarboxylation of isocitrate to α-ketoglutarate in the mitochondrial matrix, and is critical for the production of NADPH to limit the accumulation of mitochondrial reactive oxygen species (ROS). Here, we showed that high-fat diet (HFD) feeding resulted in accelerated weight gain in the IDH2KO mice due to a reduction in whole-body energy expenditure. Moreover, the levels of NADP+, NADPH, NAD+, and NADH were significantly decreased in the brown adipose tissue (BAT) of the HFD-fed IDH2KO animals, accompanied by decreased mitochondrial function and reduced expression of key genes involved in mitochondrial biogenesis, energy expenditure, and ROS resolution. Interestingly, these changes were partially reversed when the antioxidant butylated hydroxyanisole was added to the HFD. These observations reveal a crucial role for IDH2 in limiting ROS-dependent mitochondrial damage when BAT metabolism is normally enhanced to limit weight gain in response to dietary caloric overload.

AB - Isocitrate dehydrogenase 2 (IDH2) is an NADP+-dependent enzyme that catalyzes the oxidative decarboxylation of isocitrate to α-ketoglutarate in the mitochondrial matrix, and is critical for the production of NADPH to limit the accumulation of mitochondrial reactive oxygen species (ROS). Here, we showed that high-fat diet (HFD) feeding resulted in accelerated weight gain in the IDH2KO mice due to a reduction in whole-body energy expenditure. Moreover, the levels of NADP+, NADPH, NAD+, and NADH were significantly decreased in the brown adipose tissue (BAT) of the HFD-fed IDH2KO animals, accompanied by decreased mitochondrial function and reduced expression of key genes involved in mitochondrial biogenesis, energy expenditure, and ROS resolution. Interestingly, these changes were partially reversed when the antioxidant butylated hydroxyanisole was added to the HFD. These observations reveal a crucial role for IDH2 in limiting ROS-dependent mitochondrial damage when BAT metabolism is normally enhanced to limit weight gain in response to dietary caloric overload.

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Isocitrate dehydrogenase 2 protects mice from high-fat diet-induced metabolic stress by limiting oxidative damage to the mitochondria from brown adipose tissue

Abstract

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