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Published in: Journal of Experimental & Clinical Cancer Research 1/2020

Open Access 01-12-2020 | Metastasis | Research

C3a-C3aR signaling promotes breast cancer lung metastasis via modulating carcinoma associated fibroblasts

Authors: Chi Shu, Haoran Zha, Haixia Long, Xinxin Wang, Fei Yang, Jianbao Gao, Chunyan Hu, Li Zhou, Bo Guo, Bo Zhu

Published in: Journal of Experimental & Clinical Cancer Research | Issue 1/2020

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Abstract

Background

Mounting evidence suggests that complement components promote tumor progression via modulating immune suppression, angiogenesis, or tumor cell proliferation. However, the role of C3a-C3aR signaling in regulating lung metastasis of breast cancer remains unknown.

Methods

We performed various ex-vivo and in-vivo assays. Genetic and pharmacological C3aR blockade models were applied to investigate the role of C3a-C3aR in metastasis of breast cancer.

Results

C3a-C3aR signaling in CAFs facilitates the metastasis of breast cancer. Mechanically, C3a-C3aR signaling augments pro-metastatic cytokine secretion and extracellular matrix components expression of CAFs via the activation of PI3K-AKT signaling. Genetic or pharmacological blockade of C3aR signaling effectively inhibited lung metastasis of breast cancer in mouse models.

Conclusions

C3a-C3aR signaling in CAFs facilitates the metastasis of breast cancer. Targeting C3aR signaling is a potential anti-metastasis strategy for breast cancer therapy.
Appendix
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Metadata
Title
C3a-C3aR signaling promotes breast cancer lung metastasis via modulating carcinoma associated fibroblasts
Authors
Chi Shu
Haoran Zha
Haixia Long
Xinxin Wang
Fei Yang
Jianbao Gao
Chunyan Hu
Li Zhou
Bo Guo
Bo Zhu
Publication date
01-12-2020
Publisher
BioMed Central
Published in
Journal of Experimental & Clinical Cancer Research / Issue 1/2020
Electronic ISSN: 1756-9966
DOI
https://doi.org/10.1186/s13046-019-1515-2

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