Pericyte‐secreted IGF2 promotes breast cancer brain metastasis formation

Brain metastases are life‐threatening complications of triple‐negative breast cancer, melanoma, and a few other tumor types. Poor outcome of cerebral secondary tumors largely depends on the microenvironment formed by cells of the neurovascular unit, among which pericytes are the least characterized. By using in vivo and in vitro techniques and human samples, here we show that pericytes play crucial role in the development of metastatic brain...