Abstract
Bone metastasis (BM) is a common complication of cancer and contributes to a higher mortality rate in patients with cancer. The treatment of BM remains a significant challenge for oncologists worldwide. The colony‑stimulating factor (CSF) has an important effect on the metastasis of multiple cancers. In vitro studies have shown that CSF acts as a cytokine, promoting the colony formation of hematopoietic cells by activating granulocytes and macrophages. Other studies have shown that CSF not only promotes cancer aggressiveness but also correlates with the development and prognosis of various types of cancer. In recent years, the effect of CSF on BM has been primarily investigated using cellular and animal models, with limited clinical studies available. The present review discussed the composition and function of CSF, as well as its role in the progression of BM across various types of cancer. The mechanisms by which osteoclast‑ and osteoblast‑mediated BM occur are comprehensively described. In addition, the mechanisms of action of emerging therapeutic agents are explored for their potential clinical applications. However, further clinical studies are required to validate these findings.
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