PMID- 34870282 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20221102 IS - 2699-9307 (Electronic) IS - 2699-9307 (Linking) VI - 1 IP - 11 DP - 2021 Nov TI - Esterase-activatable and GSH-responsive Triptolide Nano-prodrug for the Eradication of Pancreatic Cancer. LID - 2100040 [pii] LID - 10.1002/anbr.202100040 [doi] AB - Triptolide (TPL) is a small molecule isolated from a traditional Chinese herb Tripterygium wilfordii Hook F and shows excellent anticancer effect for pancreatic cancer cells. However, the poor water solubility and severe liver toxicity of TPL hindered its clinical application. In this study, TPL was covalently conjugated to a polymer and entrapped inside the core of the TPL nanogel (nTPL) to protect it from premature leakage during blood circulation. With the help of lactobionic acid (LBA), nTPL-LBA could selectively target the tumors in an orthotopic pancreatic cancer mouse model. TPL could be subsequently released intracellularly in its original form due to the presence of elevated intracellular esterase and GSH, and eventually kills cancer cells. nTPL-LBA treatment reduced tumor burden by 99% while not introducing TPL associated liver and kidney toxicities. Most importantly, more than half of the nTPL-LBA treated animals were tumor-free, suggesting that nTPL-LBA is an effective approach in eradicating pancreatic cancer. FAU - Sui, Binglin AU - Sui B AD - Department of Drug Discovery and Biomedical Sciences, College of Pharmacy, University of South Carolina, 715 Sumter St., Columbia, SC 29208, United States. FAU - Cheng, Chen AU - Cheng C AD - Department of Drug Discovery and Biomedical Sciences, College of Pharmacy, University of South Carolina, 715 Sumter St., Columbia, SC 29208, United States. FAU - Shi, Shanshan AU - Shi S AD - Department of Drug Discovery and Biomedical Sciences, College of Pharmacy, University of South Carolina, 715 Sumter St., Columbia, SC 29208, United States. FAU - Wang, Mingming AU - Wang M AD - Department of Drug Discovery and Biomedical Sciences, College of Pharmacy, University of South Carolina, 715 Sumter St., Columbia, SC 29208, United States. FAU - Xu, Peisheng AU - Xu P AD - Department of Drug Discovery and Biomedical Sciences, College of Pharmacy, University of South Carolina, 715 Sumter St., Columbia, SC 29208, United States. LA - eng GR - R01 AG054839/AG/NIA NIH HHS/United States GR - R21 CA252360/CA/NCI NIH HHS/United States GR - R41 CA254500/CA/NCI NIH HHS/United States PT - Journal Article DEP - 20210802 PL - Germany TA - Adv Nanobiomed Res JT - Advanced nanobiomed research JID - 101773117 PMC - PMC8635305 MID - NIHMS1730449 OTO - NOTNLM OT - Triptolide OT - esterase-activatable OT - intracellular release OT - nano-prodrug OT - pancreatic cancer EDAT- 2021/12/07 06:00 MHDA- 2021/12/07 06:01 PMCR- 2022/11/01 CRDT- 2021/12/06 09:30 PHST- 2021/12/06 09:30 [entrez] PHST- 2021/12/07 06:00 [pubmed] PHST- 2021/12/07 06:01 [medline] PHST- 2022/11/01 00:00 [pmc-release] AID - 2100040 [pii] AID - 10.1002/anbr.202100040 [doi] PST - ppublish SO - Adv Nanobiomed Res. 2021 Nov;1(11):2100040. doi: 10.1002/anbr.202100040. Epub 2021 Aug 2.