Sema3A Affect Osteolytic Bone Metastasis of Non-small Cell Lung Cancer.

BACKGROUND

Osteolytic bone metastasis is a common complication of Non-Small Cell Lung Cancer (NSCLC), resulting in bone pain, hypercalcemia, and fractures that severely reduce the quality of life and survival time of patients. Semaphorins 3A (Sema3A) is one of the isoforms of the Semaphorins family, which is important in a variety of physiological and pathological processes, such as angiogenesis, immune regulation, and tumorigenesis. However, the role of Sema3A in the development of osteolytic bone metastasis in NSCLC is unknown.

METHODS

In this study, we established in vitro models simulating NSCLC cells in regulating the differentiation and maturation of osteoblast and osteoclast precursors and observed the differentiation of osteoblasts and osteoclasts.

RESULTS

The results demonstrated that the expression of Sema3A promoted the proliferation, migration, and invasion of NSCLC cells, as well as promoted the differentiation of osteoblasts and inhibited the differentiation of osteoclasts, suggesting that Sema3A can inhibit the occurrence and development of osteolytic bone metastasis of NSCLC.

CONCLUSION

This study provides a new idea for the clinical treatment of osteolytic bone metastasis in NSCLC.