ALL-TRANS RETINOIC ACID INJECTANT AND APPLICATION

The present invention provides an all-trans retinoic acid injectant, and an application thereof in a pharmaceutical product for treating a tumor. The all-trans retinoic acid injectant comprises an all-trans retinoic acid and a solubilizer. The apparent solubility of the all-trans retinoic acid is raised from 0.01 mg/mL to 0.1 mg/mL or more. A preparation of the invention can reduce the activity of an immersed immunosuppressed cell group within a blood or tumor tissue of a cancer patient, and improve an immune clearing effect against a tumor. The preparation can be applied independently or together with another pharmaceutical product to suppress tumor growth or tumor recurrence. La présente invention concerne un agent d'injection d'acide tout-trans rétinoïque, et une application de ce dernier dans un produit pharmaceutique pour le traitement de tumeurs. Le produit d'injection d'acide tout-trans rétinoïque comprend de l'acide tout-trans rétinoïque et un agent de solubilisation. La solubilité apparente de l'acid