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Review
. 2023 May;1878(3):188891.
doi: 10.1016/j.bbcan.2023.188891. Epub 2023 Mar 29.

S100A8 and S100A9 in Cancer

Yu Chen  1 , Yuzhen Ouyang  2 , Zhixin Li  3 , Xiufang Wang  3 , Jian Ma  4
Affiliations
Review

S100A8 and S100A9 in Cancer

Yu Chen et al. Biochim Biophys Acta Rev Cancer. 2023 May.

Abstract

S100A8 and S100A9 are Ca2+ binding proteins that belong to the S100 family. Primarily expressed in neutrophils and monocytes, S100A8 and S100A9 play critical roles in modulating various inflammatory responses and inflammation-associated diseases. Forming a common heterodimer structure S100A8/A9, S100A8 and S100A9 are widely reported to participate in multiple signaling pathways in tumor cells. Meanwhile, S100A8/A9, S100A8, and S100A9, mainly as promoters, contribute to tumor development, growth and metastasis by interfering with tumor metabolism and the microenvironment. In recent years, the potential of S100A8/A9, S100A9, and S100A8 as tumor diagnostic or prognostic biomarkers has also been demonstrated. In addition, an increasing number of potential therapies targeting S100A8/A9 and related signaling pathways have emerged. In this review, we will first expound on the characteristics of S100A8/A9, S100A9, and S100A8 in-depth, focus on their interactions with tumor cells and microenvironments, and then discuss their clinical applications as biomarkers and therapeutic targets. We also highlight current limitations and look into the future of S100A8/A9 targeted anti-cancer therapy.

Keywords: Anti-cancer therapy; Biomarkers; Cancer; Cancer metabolism; Immune microenvironment; S100A8/A9.

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Conflict of interest statement

Declaration of Competing Interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests. Jian Ma reports financial support was provided by National Natural Science Foundation of China. Jian Ma reports financial support was provided by China 111 Project. Jian Ma reports financial support was provided by Natural Science Foundation of Changsha. Jian Ma reports financial support was provided by Hunan Province Science and Technology Project.

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