TSPO and nervous system neoplasm: The various membrane proteins or receptors, such as translocation protein 18 kDa (TSPO), protease-activated receptor 1/4, receptors for advanced glycation end products, etc., have been found to influence neuroinflammation, and provide an important link in the nervous system injury and repair, neurodegeneration, and nervous system tumors, by effectively modulating microglia activation.