Volume 26, Issue 7 pp. 1375-1383
ORIGINAL ARTICLE

Curcumin suppresses the proliferation and tumorigenicity of Cal27 by modulating cancer-associated fibroblasts of TSCC

Pengfei Ba

Pengfei Ba

Department of Periodontology, School of Stomatology, Shandong University, Jinan, China

Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Shandong University, Jinan, China

Department of Periodontology, Weihai Stomatological Hospital, Weihai, China

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Mingcai Xu

Mingcai Xu

Department of Reproductive Medicine, Weihai second municipal hospital Affiliated to Qingdao University, Weihai, China

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Miao Yu

Miao Yu

Department of Stomatology, Weifang People’s Hospital, Weifang, China

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Linxia Li

Linxia Li

Department of Stomatology, Affiliated Hospital of Jining Medical University, Jining, China

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Xiaoyu Duan

Xiaoyu Duan

National Engineering Laboratory, WeGo Group Co., Ltd, Weihai, China

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Shuyan Lv

Shuyan Lv

Department of Periodontology, Weihai Stomatological Hospital, Weihai, China

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Guo Fu

Guo Fu

Department of Periodontology, Weihai Stomatological Hospital, Weihai, China

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Jianbo Yang

Jianbo Yang

Department of Periodontology, Weihai Stomatological Hospital, Weihai, China

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Pishan Yang

Pishan Yang

Department of Periodontology, School of Stomatology, Shandong University, Jinan, China

Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Shandong University, Jinan, China

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Chengzhe Yang

Corresponding Author

Chengzhe Yang

Department of Oral and Maxillofacial Surgery, Institute of Stomatology, Qilu Hospital, Shandong University, Jinan, China

Correspondence

Chengzhe Yang, Department of Oral and Maxillofacial Surgery, Qilu Hospital, and Institute of Stomatology, Shandong University, 107 West Wen Hua Road, Jinan, Shandong 250012, China.

Email: [email protected]

Qinfeng Sun, Department of Periodontology, School of Stomatology, Shandong University, 44-1 Wenhuaxi Road, Jinan, Shandong 250012, China.

Email: [email protected]

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Qinfeng Sun

Corresponding Author

Qinfeng Sun

Department of Periodontology, School of Stomatology, Shandong University, Jinan, China

Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Shandong University, Jinan, China

Correspondence

Chengzhe Yang, Department of Oral and Maxillofacial Surgery, Qilu Hospital, and Institute of Stomatology, Shandong University, 107 West Wen Hua Road, Jinan, Shandong 250012, China.

Email: [email protected]

Qinfeng Sun, Department of Periodontology, School of Stomatology, Shandong University, 44-1 Wenhuaxi Road, Jinan, Shandong 250012, China.

Email: [email protected]

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First published: 14 February 2020
Citations: 27
Ba and Xu Contributed equally.

Abstract

Cancer-associated fibroblasts (CAFs) are “activated” fibroblasts in the tumor microenvironment (TME) and play a vital role in all steps of cancer development. Increasing evidence focusing on the function of CAFs suggests that CAFs are candidate therapeutic targets and that drugs targeting the modification of CAFs would suppress tumor progression and be beneficial to tumor treatment and prevention. In the present study, we found that curcumin reversed the phenotype of CAFs to that of peri-tumor fibroblast (PTF)-like cells by downregulating the expression of α-SMA (a special marker for CAFs) and inhibiting the secretion of pro-carcinogenic cytokines, including transforming growth factor-β1 (TGF-β1), matrix metalloproteinases 2 (MMP2), and stromal cell-derived factor-1 (SDF-1). We further demonstrated that the conditioned medium (CM) derived from CAFs promoted the proliferation of Cal27, and this effect was confirmed by the xenograft model. More importantly, we found that curcumin blocked the CAF-mediated enhancement of Cal27 proliferation in vitro and in vivo. In conclusion, our data suggest that curcumin reverses cell phenotype from CAF to PTF-like cells and suppresses the CAF-mediated proliferation and tumorigenicity of Cal27 by inhibiting TSCC CAFs.

CONFLICT OF INTEREST

The authors have declared that they have no competing interests.

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