Cited by 251Muscle Physiology and DisordersNutrition and Health in AgingHeat shock proteins research

Tumor induces muscle wasting in mice through releasing extracellular Hsp70 and Hsp90

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Zhang, Guohua, Liu, Zhelong, Ding, Hui, Zhou, Yong, Doan, Hoang Anh, Sin, Ka Wai Thomas, Zhu, Zhiren J., Flores, Rene +4 more·2017·Nature Communications

Abstract

Cachexia, characterized by muscle wasting, is a major contributor to cancer-related mortality. However, the key cachexins that mediate cancer-induced muscle wasting remain elusive. Here, we show that tumor-released extracellular Hsp70 and Hsp90 are responsible for tumor’s capacity to induce muscle wasting. We detected high-level constitutive release of Hsp70 and Hsp90 associated with extracellular vesicles (EVs) from diverse cachexia-inducing tumor cells, resulting in elevated serum levels in mice. Neutralizing extracellular Hsp70/90 or silencing Hsp70/90 expression in tumor cells abrogates tumor-induced muscle catabolism and wasting in cultured myotubes and in mice. Conversely, administration of recombinant Hsp70 and Hsp90 recapitulates the catabolic effects of tumor. In addition, tumor-released Hsp70/90-expressing EVs are necessary and sufficient for tumor-induced muscle wasting. Further, Hsp70 and Hsp90 induce muscle catabolism by activating TLR4, and are responsible for elevation of circulating cytokines. These findings identify tumor-released circulating Hsp70 and Hsp90 as key cachexins causing muscle wasting in mice.

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Authors
Zhang, G., Liu, Z., Ding, H., Zhou, Y., Doan, H. A., Sin, K. W. T., Zhu, Z. J., Flores, R., Wen, Y., Gong, X., Liu, Q., & Li, Y.-P.
Affiliations
  • The University of Texas Health Science Center at Houston (US)
  • Tongji Hospital (CN)
  • Jiangsu University (CN)
  • Brown Foundation (US)
Corresponding author
Li, Yi-Ping
Venue
Nature Communications
Published
2017-09-19
Volume
8
Issue
1
Pages
589-589
ISSN
2041-1723 (ISSN-L)
OpenAlex
W2754168513
Cited by
248
References
59
Citations by year
2026: 17 · 2025: 25 · 2024: 28 · 2023: 28 · 2022: 35 · 2021: 41 · 2020: 28 · 2019: 26 · 2018: 20
FWCI
8.27
Type
journal article
Language
en
Open access
Locations
  • Nature Communications (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • University of Texas Health Science Center at Houston
  • National Cancer Institute
  • National Institute of Arthritis and Musculoskeletal and Skin Diseases (R01AR063786)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Muscle Physiology and Disorders
  • Health Sciences › Medicine › Physiology › Nutrition and Health in Aging
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Heat shock proteins research
Keywords
cancer cachexia, muscle atrophy, extracellular Hsp70, extracellular vesicles, exosomes, TLR4 signaling, serum cytokines, myotubes
MeSH terms
Extracellular Vesicles, Animals, Cachexia, Humans, Male, Mice, Inbred C57BL, Neoplasms, Muscle, Skeletal, HSP70 Heat-Shock Proteins, HSP90 Heat-Shock Proteins, Myoblasts, Cell Line, Tumor, Toll-Like Receptor 4, Mice

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