Nanoparticles (NPs)-mediated Siglec15 silencing and macrophage repolarization for enhanced cancer immunotherapy

T cell infiltration and proliferation in tumor tissues are the main factors that significantly affect the therapeutic outcomes of cancer immunotherapy. Emerging evidence has shown that interferon-gamma (IFNγ) could enhance CXCL9 secretion from macrophages to recruit T cells, but Siglec15 expressed o...

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Main Authors: Xiaodi Liu, Qi Zhang, Yixia Liang, Shiyu Xiong, Yan Cai, Jincheng Cao, Yanni Xu, Xiaolin Xu, Ye Wu, Qiang Lu, Xiaoding Xu, Baoming Luo
Format: Article
Language:English
Published: Elsevier 2023-12-01
Series:Acta Pharmaceutica Sinica B
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2211383523002733
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author Xiaodi Liu
Qi Zhang
Yixia Liang
Shiyu Xiong
Yan Cai
Jincheng Cao
Yanni Xu
Xiaolin Xu
Ye Wu
Qiang Lu
Xiaoding Xu
Baoming Luo
author_facet Xiaodi Liu
Qi Zhang
Yixia Liang
Shiyu Xiong
Yan Cai
Jincheng Cao
Yanni Xu
Xiaolin Xu
Ye Wu
Qiang Lu
Xiaoding Xu
Baoming Luo
author_sort Xiaodi Liu
collection DOAJ
description T cell infiltration and proliferation in tumor tissues are the main factors that significantly affect the therapeutic outcomes of cancer immunotherapy. Emerging evidence has shown that interferon-gamma (IFNγ) could enhance CXCL9 secretion from macrophages to recruit T cells, but Siglec15 expressed on TAMs can attenuate T cell proliferation. Therefore, targeted regulation of macrophage function could be a promising strategy to enhance cancer immunotherapy via concurrently promoting the infiltration and proliferation of T cells in tumor tissues. We herein developed reduction-responsive nanoparticles (NPs) made with poly (disulfide amide) (PDSA) and lipid-poly (ethylene glycol) (lipid-PEG) for systemic delivery of Siglec15 siRNA (siSiglec15) and IFNγ for enhanced cancer immunotherapy. After intravenous administration, these cargo-loaded could highly accumulate in the tumor tissues and be efficiently internalized by tumor-associated macrophages (TAMs). With the highly concentrated glutathione (GSH) in the cytoplasm to destroy the nanostructure, the loaded IFNγ and siSiglec15 could be rapidly released, which could respectively repolarize macrophage phenotype to enhance CXCL9 secretion for T cell infiltration and silence Siglec15 expression to promote T cell proliferation, leading to significant inhibition of hepatocellular carcinoma (HCC) growth when combining with the immune checkpoint inhibitor. The strategy developed herein could be used as an effective tool to enhance cancer immunotherapy.
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spelling doaj.art-5c85d921d6d0445da6472fbb3838f5302023-11-25T04:47:43ZengElsevierActa Pharmaceutica Sinica B2211-38352023-12-01131250485059Nanoparticles (NPs)-mediated Siglec15 silencing and macrophage repolarization for enhanced cancer immunotherapyXiaodi Liu0Qi Zhang1Yixia Liang2Shiyu Xiong3Yan Cai4Jincheng Cao5Yanni Xu6Xiaolin Xu7Ye Wu8Qiang Lu9Xiaoding Xu10Baoming Luo11Department of Ultrasound, Laboratory of Ultrasound Imaging and Drug, West China Hospital, Sichuan University, Chengdu 610041, China; Department of Ultrasound, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, ChinaDepartment of Ultrasound, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China; Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, ChinaGuangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, ChinaDepartment of Ultrasound, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, ChinaDepartment of Ultrasound, Central People's Hospital of Zhanjiang, Zhanjiang 524045, ChinaDepartment of Ultrasound, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, ChinaDepartment of Ultrasound, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, ChinaDepartment of Ultrasound, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, ChinaDepartment of Ultrasound, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, ChinaDepartment of Ultrasound, Laboratory of Ultrasound Imaging and Drug, West China Hospital, Sichuan University, Chengdu 610041, ChinaDepartment of Ultrasound, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China; Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China; Corresponding authors.Department of Ultrasound, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China; Corresponding authors.T cell infiltration and proliferation in tumor tissues are the main factors that significantly affect the therapeutic outcomes of cancer immunotherapy. Emerging evidence has shown that interferon-gamma (IFNγ) could enhance CXCL9 secretion from macrophages to recruit T cells, but Siglec15 expressed on TAMs can attenuate T cell proliferation. Therefore, targeted regulation of macrophage function could be a promising strategy to enhance cancer immunotherapy via concurrently promoting the infiltration and proliferation of T cells in tumor tissues. We herein developed reduction-responsive nanoparticles (NPs) made with poly (disulfide amide) (PDSA) and lipid-poly (ethylene glycol) (lipid-PEG) for systemic delivery of Siglec15 siRNA (siSiglec15) and IFNγ for enhanced cancer immunotherapy. After intravenous administration, these cargo-loaded could highly accumulate in the tumor tissues and be efficiently internalized by tumor-associated macrophages (TAMs). With the highly concentrated glutathione (GSH) in the cytoplasm to destroy the nanostructure, the loaded IFNγ and siSiglec15 could be rapidly released, which could respectively repolarize macrophage phenotype to enhance CXCL9 secretion for T cell infiltration and silence Siglec15 expression to promote T cell proliferation, leading to significant inhibition of hepatocellular carcinoma (HCC) growth when combining with the immune checkpoint inhibitor. The strategy developed herein could be used as an effective tool to enhance cancer immunotherapy.http://www.sciencedirect.com/science/article/pii/S2211383523002733NanoparticlesTumor-associated macrophagesMacrophage repolarizationT cell infiltrationT cell proliferationCancer immunotherapy
spellingShingle Xiaodi Liu
Qi Zhang
Yixia Liang
Shiyu Xiong
Yan Cai
Jincheng Cao
Yanni Xu
Xiaolin Xu
Ye Wu
Qiang Lu
Xiaoding Xu
Baoming Luo
Nanoparticles (NPs)-mediated Siglec15 silencing and macrophage repolarization for enhanced cancer immunotherapy
Acta Pharmaceutica Sinica B
Nanoparticles
Tumor-associated macrophages
Macrophage repolarization
T cell infiltration
T cell proliferation
Cancer immunotherapy
title Nanoparticles (NPs)-mediated Siglec15 silencing and macrophage repolarization for enhanced cancer immunotherapy
title_full Nanoparticles (NPs)-mediated Siglec15 silencing and macrophage repolarization for enhanced cancer immunotherapy
title_fullStr Nanoparticles (NPs)-mediated Siglec15 silencing and macrophage repolarization for enhanced cancer immunotherapy
title_full_unstemmed Nanoparticles (NPs)-mediated Siglec15 silencing and macrophage repolarization for enhanced cancer immunotherapy
title_short Nanoparticles (NPs)-mediated Siglec15 silencing and macrophage repolarization for enhanced cancer immunotherapy
title_sort nanoparticles nps mediated siglec15 silencing and macrophage repolarization for enhanced cancer immunotherapy
topic Nanoparticles
Tumor-associated macrophages
Macrophage repolarization
T cell infiltration
T cell proliferation
Cancer immunotherapy
url http://www.sciencedirect.com/science/article/pii/S2211383523002733
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