Cited by 211Extracellular vesicles in diseaseImmune cells in cancerCancer Cells and Metastasis

Granulocytic Myeloid‐Derived Suppressor Cells Promote the Stemness of Colorectal Cancer Cells through Exosomal S100A9

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Wang, Yungang, Yin, Kai, Tian, Jie, Xia, Xueli, Ma, Jie, Tang, Xinyi, Xu, Huaxi, Wang, Shengjun·2019·Advanced Science

Abstract

Cancer stem cells play a critical role in colorectal cancer (CRC) progression. Myeloid‐derived suppressor cells (MDSCs) promote tumor progression through multiple mechanisms in CRC. The roles of MDSCs in CRC cell stemness are unclear. MDSC‐derived exosomes are proposed to act as intercellular messengers. Herein, it is reported that granulocytic MDSCs (G‐MDSCs) promote CRC cell stemness and progression in mice through exosomes. It is found that S100A9, is highly expressed in G‐MDSC‐derived exosomes, and its blockade suppresses CRC cell stemness and the susceptibility of mice to AOM/DSS‐induced colitis‐associated colon cancer. Hypoxia induces G‐MDSCs to secrete more exosomes in a hypoxia‐inducible factor 1α (HIF‐1α)‐dependent manner, and respiratory hyperoxia can reduce CRC cells stemness through the inhibition of GM‐Exo production. Study‐based CRC patients also show that human MDSCs enhance CRC cell stemness and growth via exosomal S100A9, and plasma exosomal S100A9 level in CRC patients is markedly higher than that in healthy subjects. Thus, this study suggests that G‐MDSCs promote CRC cell stemness and growth through exosomal S100A9. Moreover, respiratory hyperoxia may be a beneficial strategy to reduce CRC cells stemness through the inhibition of GM‐Exo production. MDSCs exosomal S100A9 may be a marker for predicting the development of CRC.

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  1. [11]D. I. Gabrilovich, Cancer Immunol. Res. 2017, 5, 3.28052991
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Authors
Wang, Y., Yin, K., Tian, J., Xia, X., Ma, J., Tang, X., Xu, H., & Wang, S.
Affiliations
  • Jiangsu University (CN)
  • Affiliated Hospital of Jiangsu University (CN)
Corresponding author
Wang, Shengjun
Venue
Advanced Science
Publisher
Wiley
Published
2019-07-22
Volume
6
Issue
18
Pages
1901278-1901278
ISSN
2198-3844 (ISSN-L)
OpenAlex
W2962770154
Cited by
211
References
50
Citations by year
2026: 13 · 2025: 30 · 2024: 41 · 2023: 33 · 2022: 31 · 2021: 35 · 2020: 22 · 2019: 6
FWCI
7.73
Type
journal article
Language
en
Open access
Locations
  • Advanced Science (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
Funders
  • National Natural Science Foundation of China (31470881, 31711530025)
  • Priority Academic Program Development of Jiangsu Higher Education Institutions
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Extracellular vesicles in disease
  • Life Sciences › Immunology and Microbiology › Immunology › Immune cells in cancer
  • Health Sciences › Medicine › Oncology › Cancer Cells and Metastasis
Keywords
granulocytic myeloid-derived suppressor cells, colorectal cancer, cancer stemness, exosomes, S100A9, tumor microenvironment, hypoxia, HIF-1α, colitis-associated colorectal cancer, tumor progression

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