Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Sequential Treatment of Bioresponsive Nanoparticles Elicits Antiangiogenesis and Apoptosis and Synergizes with a CD40 Agonist for Antitumor Immunity
ACS Nano ( IF 15.8 ) Pub Date : 2020-12-21 , DOI: 10.1021/acsnano.0c07132 Xiang Ling 1 , Xiaomin Jiang 1 , Youyou Li 1 , Wenbo Han 1 , Megan Rodriguez 1 , Ziwan Xu 1 , Wenbin Lin 1, 2
ACS Nano ( IF 15.8 ) Pub Date : 2020-12-21 , DOI: 10.1021/acsnano.0c07132 Xiang Ling 1 , Xiaomin Jiang 1 , Youyou Li 1 , Wenbo Han 1 , Megan Rodriguez 1 , Ziwan Xu 1 , Wenbin Lin 1, 2
Affiliation
The combination of antiangiogenesis and chemotherapy regimens with cancer immunotherapy has the potential to synergistically boost antitumor immunity. Herein, we report the construction of two bioresponsive nanoparticles, namely, Podo-NP and CbP-NP, comprising prodrugs of podophyllotoxin (Podo) and carboplatin, respectively. Sequential treatment with esterase-responsive Podo-NP, redox-sensitive CbP-NP, and a CD40 agonist promotes antitumor T cell response. Podo-NP suppresses angiogenesis by preventing proliferation and migration of endothelial cells, sprouting of neovessels, formation of tubules, and stabilization of newly formed vessels. Vascular endothelial growth factor blockade and endostatin stimulation normalize tortuous tumor vasculatures to allow efficient infiltration of effector immune cells. Subsequent treatment with CbP-NP arrests the cell-division cycle and elicits the apoptosis of tumor cells. CD40 agonist activates antigen-presenting cells to process the released tumor-associated antigens from dying tumor cells, thus reversing immunosuppressive tumor microenvironments. Sequential delivery of antiangiogenic and chemotherapeutic agents with bioresponsive NPs activates tumor microenvironments and synergizes with CD40 agonist to regress transplanted tumors and inhibit disseminated tumors in a lung cancer mouse model.
中文翻译:
生物反应性纳米颗粒的序贯治疗引发抗血管生成和细胞凋亡,并与 CD40 激动剂协同作用以产生抗肿瘤免疫
抗血管生成和化疗方案与癌症免疫疗法的结合有可能协同增强抗肿瘤免疫力。在此,我们报道了两种生物响应性纳米颗粒的构建,即 Podo-NP 和 CbP-NP,分别包含鬼臼毒素 (Podo) 和卡铂的前药。用酯酶反应性 Podo-NP、氧化还原敏感的 CbP-NP 和 CD40 激动剂序贯治疗可促进抗肿瘤 T 细胞反应。Podo-NP 通过阻止内皮细胞的增殖和迁移、新血管的发芽、小管的形成和新形成的血管的稳定来抑制血管生成。血管内皮生长因子阻断和内皮抑素刺激使曲折的肿瘤脉管系统正常化,从而有效浸润效应免疫细胞。随后用 CbP-NP 处理可阻止细胞分裂周期并引发肿瘤细胞凋亡。CD40 激动剂激活抗原呈递细胞,处理从垂死的肿瘤细胞中释放的肿瘤相关抗原,从而逆转免疫抑制性肿瘤微环境。在肺癌小鼠模型中,具有生物反应性 NPs 的抗血管生成和化疗药物的连续递送可激活肿瘤微环境并与 CD40 激动剂协同作用,以消退移植的肿瘤并抑制播散的肿瘤。
更新日期:2021-01-26
中文翻译:
生物反应性纳米颗粒的序贯治疗引发抗血管生成和细胞凋亡,并与 CD40 激动剂协同作用以产生抗肿瘤免疫
抗血管生成和化疗方案与癌症免疫疗法的结合有可能协同增强抗肿瘤免疫力。在此,我们报道了两种生物响应性纳米颗粒的构建,即 Podo-NP 和 CbP-NP,分别包含鬼臼毒素 (Podo) 和卡铂的前药。用酯酶反应性 Podo-NP、氧化还原敏感的 CbP-NP 和 CD40 激动剂序贯治疗可促进抗肿瘤 T 细胞反应。Podo-NP 通过阻止内皮细胞的增殖和迁移、新血管的发芽、小管的形成和新形成的血管的稳定来抑制血管生成。血管内皮生长因子阻断和内皮抑素刺激使曲折的肿瘤脉管系统正常化,从而有效浸润效应免疫细胞。随后用 CbP-NP 处理可阻止细胞分裂周期并引发肿瘤细胞凋亡。CD40 激动剂激活抗原呈递细胞,处理从垂死的肿瘤细胞中释放的肿瘤相关抗原,从而逆转免疫抑制性肿瘤微环境。在肺癌小鼠模型中,具有生物反应性 NPs 的抗血管生成和化疗药物的连续递送可激活肿瘤微环境并与 CD40 激动剂协同作用,以消退移植的肿瘤并抑制播散的肿瘤。