MAO A HSP90-IN-1 (4-b) 是一种针对MAO A和HSP90的双重抑制剂,展现在恶性胶质瘤GL26细胞上的IC50为1.77 μM,针对HSP90α的IC50为0.019 μM。该化合物能够通过抑制MAO A活性和HSP90结合,以及降低HER2和phospho-Akt表达,进而抗击恶性胶质瘤(GMB)。同时,MAO A HSP90-IN-1 (4-b)可减少PD-L1的表达,从而降低T细胞活化的抑制,有望用来抑制肿瘤的免疫逃逸。该化合物适用于脑肿瘤相关疾病研究。
MAO A HSP90-IN-2(compound 4-C)是一种针对HSP90和MAO A的双重抑制剂,显示出分别对这两种酶有0.016 μM和4.58 μM的IC50值。该化合物能够上调HSP70,降低HER2和磷酸化AKT的表达,同时能减少GL26细胞中由IFN-γ诱导的PD-L1表达增加。此外,MAO A HSP90-IN-2能够抑制对Temozolomide敏感或耐药的胶质母细胞瘤(GBM)、结肠癌、白血病和非小细胞肺癌细胞的生长,并可能有助于阻止肿瘤逃避免疫监控。
MAO-B-IN-10 (compound 4f) is a highly potent and selective inhibitor of MAO-B (monoamine oxidase-B). It effectively penetrates the blood-brain barrier and exhibits an IC50 of 5.3 μM. This compound demonstrates the ability to inhibit self-mediated Aβ (amyloid β) aggregation by 58.2% and disaggregate it by 43.3%. Thus, MAO-B-IN-10 holds promise for Alzheimer's disease research [1].