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Xiao Z, Tan Y, Cai Y, Huang J, Wang X, Li B, Lin L, Wang Y, Shuai X, Zhu K. Nanodrug removes physical barrier to promote T-cell infiltration for enhanced cancer immunotherapy. J Control Release 2023; 356:360-372. [PMID: 36871644 DOI: 10.1016/j.jconrel.2023.02.029] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 02/04/2023] [Accepted: 02/21/2023] [Indexed: 03/07/2023]
Abstract
The dense extracellular matrix (ECM) is a key barrier to tumor infiltration of cytotoxic T lymphocytes (CTLs), which greatly compromises T cell-dependent immunotherapy of hepatocellular carcinoma (HCC). Herein, hyaluronidase (HAase), IL-12, and anti-PD-L1 antibody (αPD-L1) were co-delivered using a pH and MMP-2 dual-sensitive polymer/calcium phosphate (CaP) hybrid nanocarrier. The dissolution of CaP triggered by tumor acidity facilitated the release of IL-12 and HAase responsible for ECM digestion, enhancing the tumor infiltration and proliferation of CTLs. Furthermore, the in situ-released αPD-L1 inside tumor, as triggered by an overexpressed MMP-2, prevented the tumor cell from escaping the killing effects of CTLs. Such combination strategy induced a robust antitumor immunity for efficiently suppressing HCC growth in mice. Additionally, tumor acidity-sheddable polyethylene glycol (PEG) coating enhanced the tumor accumulation of nanocarrier and reduced the immune-related adverse events (irAEs) induced by on-target off-tumor αPD-L1. This dual-sensitive nanodrug demonstrates an effective immunotherapy paradigm for other dense ECM-characterized solid tumors.
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Affiliation(s)
- Zecong Xiao
- Department of Minimally Invasive Interventional Radiology, and Laboratory of Interventional Radiology, the Second Affiliated Hospital of Guangzhou Medical University, Guangzhou 510260, China
| | - Yitong Tan
- Department of Minimally Invasive Interventional Radiology, and Laboratory of Interventional Radiology, the Second Affiliated Hospital of Guangzhou Medical University, Guangzhou 510260, China
| | - Yujun Cai
- Nanomedicine Research Center, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - Jinsheng Huang
- Department of Urology, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen 518107, China
| | - Xiaobin Wang
- Department of Minimally Invasive Interventional Radiology, and Laboratory of Interventional Radiology, the Second Affiliated Hospital of Guangzhou Medical University, Guangzhou 510260, China
| | - Bo Li
- Nanomedicine Research Center, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - Liteng Lin
- Department of Minimally Invasive Interventional Radiology, and Laboratory of Interventional Radiology, the Second Affiliated Hospital of Guangzhou Medical University, Guangzhou 510260, China
| | - Yong Wang
- College of Chemistry and Materials Science, Jinan University, Guangzhou 510632, China.
| | - Xintao Shuai
- Department of Minimally Invasive Interventional Radiology, and Laboratory of Interventional Radiology, the Second Affiliated Hospital of Guangzhou Medical University, Guangzhou 510260, China; Nanomedicine Research Center, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China.
| | - Kangshun Zhu
- Department of Minimally Invasive Interventional Radiology, and Laboratory of Interventional Radiology, the Second Affiliated Hospital of Guangzhou Medical University, Guangzhou 510260, China.
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