Leukocyte infiltration promoter and tumor immune activator

摘要

Substances that activate lysophospholipid receptors can normalize abnormal blood vessels inside the tumor without affecting normal blood vessels, resulting in inducing or promoting leukocyte infiltration into part or all of the tumor area Therefore, it is useful as a leukocyte infiltration promoter and tumor immune activator. Furthermore, since a substance that activates a lysophospholipid receptor can enhance cancer immunotherapy when used in combination with cancer immunotherapy, it is useful as a cancer immunotherapy enhancer.