Morin suppresses cachexia-induced muscle wasting by binding to ribosomal protein S10 in carcinoma cells

Tomohiro Yoshimura, Kanae Saitoh, Luchuanyang Sun, Yao Wang, Shigeto Taniyama, Kenichi Yamaguchi, Takayuki Uchida, Tsutomu Ohkubo, Atsushi Higashitani, Takeshi Nikawa, Katsuyasu Tachibana, Katsuya Hirasaka

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

Cachexia, observed in most cancer patients, is a syndrome that includes wasting of bodily energy reserves and is characterized by muscle atrophy and fat loss. We have previously demonstrated that isoflavones, such as genistein and daidzein, prevent muscle wasting in tumor-bearing mice. In this study, we examined the effect of morin, a flavonoid, on cachexia. The wet weight and myofiber size of muscles in Lewis lung carcinoma (LLC) cell-bearing mice fed a normal diet were decreased, compared with those in control mice fed a normal diet. In contrast, intake of morin prevented the reduction of muscle wet weight and myofiber size. Moreover, the tumor weight in mice fed the morin diet was lower than that in mice fed the normal diet. Both cell viability and protein synthetic ability of LLC cells were reduced by treatment with morin, but C2C12 myotubes were not affected. Binding assay using morin-conjugated magnetic beads identified ribosomal protein S10 (RPS10) as a target protein of morin. Consistent with the result of morin treatment, knockdown of RPS10 suppressed LLC cell viability. These results suggest that morin indirectly prevents muscle wasting induced by cancer cachexia by suppressing cancer growth via binding to RPS10.

Original languageEnglish
Pages (from-to)773-779
Number of pages7
JournalBiochemical and biophysical research communications
Volume506
Issue number4
DOIs
Publication statusPublished - 2018 Dec 2

Keywords

  • Cachexia
  • Morin
  • Muscle wasting
  • Ribosomal protein

ASJC Scopus subject areas

  • Biophysics
  • Biochemistry
  • Molecular Biology
  • Cell Biology

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