1. Academic Validation
  2. Targeted tumor cell-intrinsic CTRP6 biomimetic codelivery synergistically amplifies ferroptosis and immune activation to boost anti-PD-L1 immunotherapy efficacy in lung cancer

Targeted tumor cell-intrinsic CTRP6 biomimetic codelivery synergistically amplifies ferroptosis and immune activation to boost anti-PD-L1 immunotherapy efficacy in lung cancer

  • J Nanobiotechnology. 2025 Jun 2;23(1):409. doi: 10.1186/s12951-025-03428-5.
Songhua Cai # 1 Jing Huang # 1 Hongjie Fan # 2 Zhilin Sui 1 Chujian Huang 1 Youjun Deng 1 Ran Jia 1 Lixu Wang 1 Kai Ma 1 Xiaotong Guo 1 Jie He 3 4 Baihua Zhang 5 Zhentao Yu 6
Affiliations

Affiliations

  • 1 Department of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital & Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen, 518116, China.
  • 2 Department of Radiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
  • 3 Department of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital & Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen, 518116, China. prof.jiehe@gmail.com.
  • 4 Department of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China. prof.jiehe@gmail.com.
  • 5 Department of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital & Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen, 518116, China. zhangbaihua2025@hotmail.com.
  • 6 Department of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital & Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen, 518116, China. yuzhentao@chcamssz.ac.cn.
  • # Contributed equally.
Abstract

Background: Lung adenocarcinoma (LUAD) is a refractory tumor with high incidence, high mortality, and easy development of drug resistance. Represented by PD-L1, the rise of immunotherapy and multidrug combinations offers a reliable approach to treating LUAD. However, there are still some patients with immunoresistance or insensitivity, and new combination therapies are still needed.

Methods: In this study, cyclic arginine-glycine-aspartate (cRGD)/erythrocyte membrane (RBCM) double-head nanocarriers were designed. This nanocarrier platform targets CTRP6 in tumors and delivers gemcitabine to block the progression of lung Cancer. PD-L1 monoclonal antibodies were used as a codelivery platform to explore the effect of the codelivery platform on immunotherapy.

Results: CTRP6 expression was negatively correlated with the prognosis of patients with lung adenocarcinoma. The codelivery platform @RBCM/cRGD-PhLips effectively targeted tumor cells. Co-carrying gemcitabine and targeting CTRP6 expression, it amplified Ferroptosis of tumor cells through the NRF2/STAT3 signaling pathway, activated intratumoral immunity, and promoted M1-like macrophage transformation and CD8+ T-cell recruitment. This platform amplified the immune effect of PD-L1 monoclonal antibodies to play an anti-lung Cancer role.

Conclusions: The synergistic delivery of the targeted tumor cell-intrinsic CTRP6 biomimetic nanocarrier provides a new approach to the combined immunotherapy of lung Cancer.

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