Myocardial fatty acid uptake through CD36 is indispensable for sufficient bioenergetic metabolism to prevent progression of pressure overload-induced heart failure

Yogi Umbarawan, Mas Rizky A.A. Syamsunarno, Norimichi Koitabashi, Hideru Obinata, Aiko Yamaguchi, Hirofumi Hanaoka, Takako Hishiki, Noriyo Hayakawa, Motoaki Sano, Hiroaki Sunaga, Hiroki Matsui, Yoshito Tsushima, Makoto Suematsu, Masahiko Kurabayashi, Tatsuya Iso

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The energy metabolism of the failing heart is characterized by reduced fatty acid (FA) oxidation and an increase in glucose utilization. However, little is known about how energy metabolism-function relationship is relevant to pathophysiology of heart failure. Recent study showed that the genetic deletion of CD36 (CD36KO), which causes reduction in FA use with an increased reliance on glucose, accelerates the progression from compensated hypertrophy to heart failure. Here, we show the mechanisms by which CD36 deletion accelerates heart failure in response to pressure overload. CD36KO mice exhibited contractile dysfunction and death from heart failure with enhanced cardiac hypertrophy and interstitial fibrosis when they were subjected to transverse aortic constriction (TAC). The pool size in the TCA cycle and levels of high-energy phosphate were significantly reduced in CD36KO-TAC hearts despite an increase in glycolytic flux. De novo synthesis of non-essential amino acids was facilitated in CD36KO-TAC hearts, which could cause a further decline of the pool size. The ingestion of a diet enriched in medium-chain FA improved cardiac dysfunction in CD36KO-TAC hearts. These findings suggest that myocardial FA uptake through CD36 is indispensable for sufficient ATP production and for preventing an increased glycolytic flux-mediated structural remodeling during pressure overload-induced hypertrophy.

Original languageEnglish
Article number12035
JournalScientific Reports
Volume8
Issue number1
DOIs
Publication statusPublished - 2018 Dec 1

Fingerprint

Constriction
Energy Metabolism
Fatty Acids
Heart Failure
Pressure
Hypertrophy
Glucose
Cardiomegaly
Fibrosis
Eating
Adenosine Triphosphate
Phosphates
Diet
Amino Acids

ASJC Scopus subject areas

  • General

Cite this

Myocardial fatty acid uptake through CD36 is indispensable for sufficient bioenergetic metabolism to prevent progression of pressure overload-induced heart failure. / Umbarawan, Yogi; Syamsunarno, Mas Rizky A.A.; Koitabashi, Norimichi; Obinata, Hideru; Yamaguchi, Aiko; Hanaoka, Hirofumi; Hishiki, Takako; Hayakawa, Noriyo; Sano, Motoaki; Sunaga, Hiroaki; Matsui, Hiroki; Tsushima, Yoshito; Suematsu, Makoto; Kurabayashi, Masahiko; Iso, Tatsuya.

In: Scientific Reports, Vol. 8, No. 1, 12035, 01.12.2018.

Research output: Contribution to journalArticle

Umbarawan, Y, Syamsunarno, MRAA, Koitabashi, N, Obinata, H, Yamaguchi, A, Hanaoka, H, Hishiki, T, Hayakawa, N, Sano, M, Sunaga, H, Matsui, H, Tsushima, Y, Suematsu, M, Kurabayashi, M & Iso, T 2018, 'Myocardial fatty acid uptake through CD36 is indispensable for sufficient bioenergetic metabolism to prevent progression of pressure overload-induced heart failure', Scientific Reports, vol. 8, no. 1, 12035. https://doi.org/10.1038/s41598-018-30616-1
Umbarawan, Yogi ; Syamsunarno, Mas Rizky A.A. ; Koitabashi, Norimichi ; Obinata, Hideru ; Yamaguchi, Aiko ; Hanaoka, Hirofumi ; Hishiki, Takako ; Hayakawa, Noriyo ; Sano, Motoaki ; Sunaga, Hiroaki ; Matsui, Hiroki ; Tsushima, Yoshito ; Suematsu, Makoto ; Kurabayashi, Masahiko ; Iso, Tatsuya. / Myocardial fatty acid uptake through CD36 is indispensable for sufficient bioenergetic metabolism to prevent progression of pressure overload-induced heart failure. In: Scientific Reports. 2018 ; Vol. 8, No. 1.
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