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- Title
Mannose‐targeting Concanavalin A−Epirubicin Conjugate for Targeted Intravesical Chemotherapy of Bladder Cancer.
- Authors
Huo, Fan; Zhang, Yang; Li, Yiran; Bu, Huagang; Zhang, Yaliang; Li, Wei; Guo, Yuna; Wang, Lan; Jia, Ru; Huang, Tengfei; Zhang, Weiyi; Li, Pengchao; Ding, Lin; Yan, Chao
- Abstract
Intravesical instillation of chemotherapeutic drugs such as epirubicin (EPI) is routinely used to prevent tumor recurrence and progression after transurethral resection of bladder tumor. However, the lack of tumor selectivity often causes severe damage to normal bladder urothelium leading to intolerable side effects. Here, we analyzed abnormal changes in glycosylation in bladder cancer and identified mannose as the most aberrantly expressed glycan on the surface of bladder cancer cell lines and human bladder tumor tissues. We then constructed a lectin‐drug conjugate by linking concanavalin A (ConA) – a lectin that specifically binds to mannose, with EPI through a pH‐sensitive linker. This ConA−EPI conjugate conferred EPI with mannose‐targeting ability and selectively internalized cancer cells in vitro. This conjugate showed selective cytotoxicity to cancer cells in vitro and better antitumor activity in an orthotopic mouse model of bladder cancer. Our lectin‐drug conjugation strategy makes targeted intravesical chemotherapy of bladder cancer possible.
- Subjects
BLADDER cancer; CANCER chemotherapy; INTRAVESICAL administration; DRUG instillation; DISEASE relapse; PLANT lectins
- Publication
Chemistry - An Asian Journal, 2022, Vol 17, Issue 16, p1
- ISSN
1861-4728
- Publication type
Article
- DOI
10.1002/asia.202200342