A polymeric scaffold useful for conjugating with a targeting moiety can form a targeting moiety-polymer-drug conjugate. A targeting moiety-polymer-drug conjugate is prepared from the polymeric scaffold. Compositions comprise the conjugates. Methods of their preparation and methods of treating various disorders with the conjugates or their compositions.
self‐immolative linker containing glucuronic acid results in lower cytotoxicity than that of the free payload, suggesting that hydrophilic sugar linkers can preclude passive cellular uptake. In vitro drug‐release studies and cytotoxicity assays demonstrated the potential of this small molecule–drug conjugate, providing guidance for the development of therapeutics containing hydrophobic anticancer drugs.
大多数抗癌剂都是疏水性的,可以通过被动扩散轻松穿透肿瘤细胞膜。这可能会阻碍高效和肿瘤选择性治疗方案的开发。使用亲水性 β-葡萄糖醛酸酶可裂解接头将高效抗有丝分裂剂 Cryptophycin-55 甘氨酸盐与 α v β 3整联蛋白配体c (RGDfK) 连接起来。掺入含有葡萄糖醛酸的自毁连接体会导致比游离有效负载更低的细胞毒性,这表明亲水性糖连接体可以阻止被动细胞摄取。体外药物释放研究和细胞毒性测定证明了这种小分子药物缀合物的潜力,为开发含有疏水性抗癌药物的疗法提供了指导。
A Heterodimeric Glucuronide Prodrug for Cancer Tritherapy: the Double Role of the Chemical Amplifier
Amplified action! We developed the therapeutic first targeting system that includes a chemicalamplifier programmed both to release two potent anticancer drugs after a single enzymatic activation step and become cytotoxic itself once the amplification process is completed.
Molecular, Macromolecular, and Supramolecular Glucuronide Prodrugs: Lead Identified for Anticancer Prodrug Monotherapy
作者:Morten T. Jarlstad Olesen、Raoul Walther、Pier Paolo Poier、Frederik Dagnæs‐Hansen、Alexander N. Zelikin
DOI:10.1002/anie.201916124
日期:2020.5.4
using the enzymatic repertoire of the tumor itself, is presented. Towards the overall success, molecular, macromolecular, and supramolecularglucuronideprodrugs were designed for a highly potent toxin, monomethyl auristatin E (MMAE). The lead candidate exhibited a fold difference in toxicity between the prodrug and the drug of 175, had an engineered mechanism to enhance the deliverable payload to tumours
Antineoplastic Agents. 600. From the South Pacific Ocean to the Silstatins
作者:George R. Pettit、Pablo M. Arce、Jean-Charles Chapuis、Christian B. Macdonald
DOI:10.1021/np501004h
日期:2015.3.27
The recent advances in the development of antibody and other drug conjugates for targeted cancer treatment have further increased the need for powerful cancer cell growth inhibitors. Toward that objective we have extended our earlier discovery of the remarkable anticancer bacillistatins 1 and 2 from Bacillus silvestris to SAR and other structural modifications such as availability of a free hydroxy group for antibody-drug conjugate (ADC) and other prodrug linkage. That direction has resulted in seven structural modifications designated silstatins 1-8 (7a, 8a, 8b, 14a, 15a, 15b, 18a, and 18b), where the exceptional cancer cell growth inhibition of some of them are in the range GI(50) 10(-3)-10(-4) mu M/mL. Silstatin 7 (18a) was converted to a glucuronic conjugate (28) that displayed an impressive reduction in toxicity during transport.