mmr

MMRi64 是 Mdm2-MdmX E3 连接酶活性的特异性抑制剂。MMRi64 能有效诱导 p53 积累，并诱导白血病 淋巴瘤细胞中 p53 途径的凋亡，破坏 Mdm2-MdmX 相互作用， 下调白血病细胞中的 Mdm2 和 MdmX。MMRi64 MMRi64 可用于癌症研究。

MMRi62 (7-[(2,3-dichlorophenyl)-(pyridin-2-ylamino)methyl]quinolin-8-ol) 是一种铁死亡 (ferroptosis) 诱导剂，靶向 MDM2-MDM4 (抑癌基因 p53 负调控因子)。MMRi62 对胰腺导管腺癌 (PDAC) 细胞显示出 p53 独立的促凋亡 (apoptosis) 活性，并诱导其自噬 (autophagy)。MMRi62 诱导铁死亡，伴随着活性氧增加和铁蛋白重链 (FTH1) 溶酶体降解。MMRi62 还可导致突变型 p53 的蛋白酶体降解，并对具有 KRAS 和 TP53 高频突变特征的原位异种移植 PDAC 小鼠模型具有体内药效。

Sulindac (Sulindac sulfoxide) 是一种非甾体类抗炎剂，可抑制COX-2的活性，也可抑制 COX-2 的过表达。它是一种亚磺酰基茚衍生物前药，具有潜在的抗肿瘤活性。

KL-50是一种专门针对缺少O6-甲基鸟嘌呤-DNA-甲基转移酶（MGMT）的肿瘤细胞的选择性毒素。该化合物能够激发缺MGMT的细胞中DNA损伤应答路径和引发细胞周期阻滞，这一过程与错配修复（MMR）无关。因此，KL-50在缺乏DNA修复蛋白MGMT的脑肿瘤研究中具有重要的应用潜力。

Brostallicin is a synthetic, alpha-bromoacrylic, second-generation minor groove binder (MGB), related to distamycin A, with potential antineoplastic activity. Brostallicin binds to DNA minor groove DNA, after having formed a highly reactive glutathione (GSH)-brostallicin complex in the presence of the enzyme glutathione S-transferase (GST), which is overexpressed in cancer cells; DNA replication and cell division are inhibited, resulting in tumor cell death. Compared to typical MGBs, this agent appears to bind covalently to DNA in a different manner and its activity does not depend on a functional DNA mismatch repair (MMR) mechanism. Accordingly, brostallicin may be effective against MMR-defective tumors that are refractory to various anticancer agents.

Aroplatin is a synthetic liposomal formulation of bis-neodecanoate diaminocyclohexane platinum (NDDP), a third-generation platinum complex analogue of cisplatin, with potential antineoplastic activity. After displacement of the 2 long-chain aliphatic leaving groups (neodecanoic acid), platinum diaminocyclohexane (DACH) complexes become highly reactive and alkylate macromolecules, forming both inter- and intra-strand DNA crosslinks and inhibiting DNA synthesis, which results in tumor cell cytotoxicity. Because DNA mismatch-repair (MMR) complexes do not recognize DACH–platinum adducts, DNA repair mechanisms are inhibited, overcoming limitations observed with other platinum-based agents. In addition, the liposomal encapsulation improves the bioavailability of NDDP and reduces its toxicity profile.