Peptide-based boronates:How to achieve tissue specificity in anticancer therapy

• 作者: Nicola Micale
• 来源期刊: 世界转化医学杂志
• 学科: 医学
• 关键词: PEPTIDE BORONATES PROTEASOME INHIBITORS ANTICANCER therapy Pro-soft drug Solid TUMORS
• 年，卷（期）: sjzhyxzz_2013,（3）
• 页码范围: 32-35
• 页数: 4页
• 分类号: R

摘要

Dipeptidyl boronic acids are suitable candidates for the design of“pro-soft”drugs because recent studies have proven that these acids undergo a pH-dependent cyclization equilibrium,generating an inactive cyclic form under physiological conditions.Dipeptidyl boronic acids possess a wide range of potential targets,and the 26S proteasome appears to be one of the main targets.This multicatalytic complex is involved in intracellular protein turnover and is overexpressed in certain pathological conditions,such as malignancies,autoimmune diseases and neurodegenerative diseases.Bortezomib is the first-in-class derivative approved by the Food and Drug Administration for the treatment of hematological malignancies(i.e.,relapsed and refractory multiple myeloma and mantle cell lymphoma)but is inactive against solid tumors due to an insufficient tissue distribution.The present study suggests a possible strategy for enhancing the in vivo performance of dipeptidyl boronic acids endowed with promising proteasomeinhibiting properties and their applicability as anticancer agents.In particular,dipeptidyl boronic acids might have a fruitful application as pro-soft drugs when an appropriate recognition motif serves as a substrate for a tumor-specific protease,generating the active form of the drug in situ and preventing systemic side effects after diffusion through cells and tissues.