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Endowing Pt(IV) with Perfluorocarbon Chains and Human Serum Albumin Encapsulation for Highly Effective Antitumor Chemoimmunotherapy
ACS Nano ( IF 15.8 ) Pub Date : 2024-05-15 , DOI: 10.1021/acsnano.4c01352
Peng Xie 1 , Qiao Jin 2 , Lingpu Zhang 3 , Hanchen Zhang 3 , Nicolás Montesdeoca 4 , Johannes Karges 4 , Haihua Xiao 3 , Xinzhan Mao 1 , Haiqin Song 5 , Kun Shang 6
ACS Nano ( IF 15.8 ) Pub Date : 2024-05-15 , DOI: 10.1021/acsnano.4c01352
Peng Xie 1 , Qiao Jin 2 , Lingpu Zhang 3 , Hanchen Zhang 3 , Nicolás Montesdeoca 4 , Johannes Karges 4 , Haihua Xiao 3 , Xinzhan Mao 1 , Haiqin Song 5 , Kun Shang 6
Affiliation
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Tumor metastases and reoccurrence are considered the leading causes of cancer-associated deaths. As an emerging therapeutic method, increasing research efforts have been devoted to immunogenic cell death (ICD)-inducing compounds to solve the challenge. The clinically approved chemotherapeutic Pt complexes are not or are only poorly able to trigger ICD. Herein, the axial functionalization of the Pt(II) complex cisplatin with perfluorocarbon chains into ICD-inducing Pt(IV) prodrugs is reported. Strikingly, while the Pt(II) complex as well as the perfluorocarbon ligands did not induce ICD, the Pt(IV) prodrug demonstrated unexpectantly the induction of ICD through accumulation in the endoplasmic reticulum and generation of reactive oxygen species in this organelle. To enhance the pharmacological properties, the compound was encapsulated with human serum albumin into nanoparticles. While selectively accumulating in the tumorous tissue, the nanoparticles demonstrated a strong tumor growth inhibitory effect against osteosarcoma inside a mouse model. In vivo tumor vaccine analysis also demonstrated the ability of Pt(IV) to be an ideal ICD inducer. Overall, this study reports on axially perfluorocarbon chain-modified Pt(IV) complexes for ICD induction and chemoimmunotherapy in osteosarcoma.
中文翻译:
赋予 Pt(IV) 全氟化碳链和人血清白蛋白封装用于高效抗肿瘤化学免疫治疗
肿瘤转移和复发被认为是癌症相关死亡的主要原因。作为一种新兴的治疗方法,越来越多的研究工作致力于诱导免疫原性细胞死亡(ICD)的化合物来解决这一挑战。临床批准的化疗 Pt 复合物不能或只能很少地触发 ICD。在此,报道了具有全氟化碳链的 Pt(II) 络合物顺铂的轴向功能化成 ICD 诱导的 Pt(IV) 前药。引人注目的是,虽然 Pt(II) 配合物以及全氟化碳配体不会诱导 ICD,但 Pt(IV) 前药却意外地表现出通过在内质网中的积累和该细胞器中活性氧的产生来诱导 ICD。为了增强药理特性,该化合物与人血清白蛋白一起封装成纳米颗粒。当纳米粒子选择性地积聚在肿瘤组织中时,在小鼠模型中表现出对骨肉瘤的强大肿瘤生长抑制作用。体内肿瘤疫苗分析还证明了 Pt(IV) 作为理想 ICD 诱导剂的能力。总体而言,本研究报告了轴向全氟化碳链修饰的 Pt(IV) 配合物用于骨肉瘤的 ICD 诱导和化学免疫治疗。
更新日期:2024-05-15
中文翻译:

赋予 Pt(IV) 全氟化碳链和人血清白蛋白封装用于高效抗肿瘤化学免疫治疗
肿瘤转移和复发被认为是癌症相关死亡的主要原因。作为一种新兴的治疗方法,越来越多的研究工作致力于诱导免疫原性细胞死亡(ICD)的化合物来解决这一挑战。临床批准的化疗 Pt 复合物不能或只能很少地触发 ICD。在此,报道了具有全氟化碳链的 Pt(II) 络合物顺铂的轴向功能化成 ICD 诱导的 Pt(IV) 前药。引人注目的是,虽然 Pt(II) 配合物以及全氟化碳配体不会诱导 ICD,但 Pt(IV) 前药却意外地表现出通过在内质网中的积累和该细胞器中活性氧的产生来诱导 ICD。为了增强药理特性,该化合物与人血清白蛋白一起封装成纳米颗粒。当纳米粒子选择性地积聚在肿瘤组织中时,在小鼠模型中表现出对骨肉瘤的强大肿瘤生长抑制作用。体内肿瘤疫苗分析还证明了 Pt(IV) 作为理想 ICD 诱导剂的能力。总体而言,本研究报告了轴向全氟化碳链修饰的 Pt(IV) 配合物用于骨肉瘤的 ICD 诱导和化学免疫治疗。