The invention discloses an application of
sanguinarine chloride (SGC) in preparation of a
medicine for treating a PRCC-TFE3 rearranged
renal cell carcinoma (rRCC), and belongs to the technical field of biological
medicine, in particular to an application of
sanguinarine chloride (SGC) in preparation of a
medicine for treating a PRCC-TFE3 rearranged
renal cell carcinoma (rRCC). According to the application, it is found for the first time that SGC has a specific killing effect on PRCC-TFE3 rRCC cells and has extremely
low toxicity on normal
kidney cells; the SGC has multiple anti-tumor action mechanisms: on one hand, the SGC is directly combined with and antagonizes a VEGFR2
receptor on a
cell membrane to block autocrine
signal transduction of VEGFB; on the other hand, the SGC inhibits transcription of VEGFB (
vascular endothelial growth factor B) through ROS / p-STAT3 axis
epigenetics; besides, the SGC can inhibit the production of
lactic acid and the
acylation of H3K18, and down-regulate the
secretion of chemotactic factors, so that the infiltration of polymorphic myeloid-derived
suppressor cells (PMN-MDSCs) in a
tumor microenvironment is remarkably inhibited; in an immune sound mouse model, the SGC shows an excellent in-vivo anti-tumor effect, and a brand new targeting and immunoregulation double-effect candidate
drug is provided for clinically treating the PRCC-TFE3 rRCC lacking an effective standard therapy.