mg 101

MG-101 (Calpain inhibitor I) 是一种有效的半胱氨酸蛋白酶抑制剂，能够抑制钙蛋白酶I (Ki:190 pM)，钙蛋白酶II (Ki:220 pM)，组织蛋白酶B (Ki:150 pM)和组织蛋白酶L (Ki:500 pM)。

PLM-101是一种口服抗癌剂，针对FLT3和RET具有选择性抑制作用，有效抑制急性髓系白血病（AML）细胞。通过抑制RET，PLM-101促使FLT3的自噬降解，并且通过抑制PI3K和Ras ERK信号通路来发挥其抗白血病的活性。在小鼠MV4-11侧翼异种移植模型中，PLM-101以口服剂量3及10 mg kg显示出抗肿瘤效果，并且在同种异种移植小鼠模型中，剂量为40 mg kg（口服）亦展现出明显的抗肿瘤功效。

Kynurenic acid, an active metabolite of tryptophan, is synthesized through a kynurenine intermediate by kynurenine aminotransferases (KATs). It acts as an antagonist of both NMDA and AMPA receptors, as well as α7 nicotinic acetylcholine receptors (nAChRs; EC50s = 235, 101, and 7 µM, respectively), and functions as an agonist for the aryl hydrocarbon receptor (AhR) and G protein-coupled receptor 35 (GPR35; EC50s = 1.4 and 39 µM, respectively). In a neonatal rat model of cerebral hypoxic-ischemia, induced by carotid artery ligation, administration of kynurenic acid at 300 mg kg prevents weight loss in the lesioned hemisphere. Additionally, at concentrations of 1 and 5 mg ml, it protects against neurodegeneration in the rhabdomere of the eye in an Htt93QtransgenicDrosophila model of Huntington's disease. Elevated levels of kynurenic acid in the cerebrospinal fluid have been observed in patients with schizophrenia.