Boosting Glioblastoma Therapy with Targeted Pyroptosis Induction.

Abstract

Glioblastoma (GBM) is a highly aggressive cancer that currently lacks effective treatments. Pyroptosis has emerged as a promising therapeutic approach for cancer, but there is still a need for new pyroptosis boosters to target cancer cells. In this study, it is reported that Aloe-emodin (AE), a natural compound derived from plants, can inhibit GBM cells by inducing pyroptosis, making it a potential booster for pyroptosis-mediated GBM therapy. However, administering AE is challenging due to the blood-brain barrier (BBB) and its non-selectivity. To overcome this obstacle, AE@ZIF-8 NPs are developed, a biomineralized nanocarrier that releases AE in response to the tumor's acidic microenvironment (TAM). Further modification of the nanocarrier with transferrin (Tf) and polyethylene glycol-poly (lactic-co-glycolic acid) (PEG-PLGA) improves its penetration through the BBB and tumor targeting, respectively. The results show that AE-NPs (Tf-PEG-PLGA modified AE@ZIF-8 NPs) significantly increase the intracranial distribution and tumor tissue accumulation, enhancing GBM pyroptosis. Additionally, AE-NPs activate antitumor immunity and reduce AE-related toxicity. Overall, this study provides a new approach for GBM therapy and offers a nanocarrier that is capable of penetrating the BBB, targeting tumors, and attenuating toxicity.

• Authors: Xinggang Fang, Zhuo Chen, Wenhui Zhou, Tongfei Li, Man Wang, Yujiu Gao, Shinan Ma, Ying Feng, Shiming Du, Peimin Lan, Hanyu Chen, Jiarui Wei, Sisi Zhang, Zixiang Li, Xinglin Liu, Hongbo Zhang, Xingrong Guo, Jie Luo
• Journal: Small (Weinheim an der Bergstrasse, Germany) (Small) Vol. 19 Issue 30 Pg. e2207604 (07 2023) ISSN: 1613-6829 [Electronic] Germany
• PMID: 37066699 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
• Copyright: © 2023 The Authors. Small published by Wiley-VCH GmbH.

Chemical References

• polyethylene glycol-poly(lactide-co-glycolide)
• Transferrin

Topics

• Humans
• Glioblastoma (pathology)
• Pyroptosis
• Cell Line, Tumor
• Nanoparticles
• Transferrin
• Brain Neoplasms (drug therapy)
• Tumor Microenvironment