Nanobodies and their derivatives: pioneering the future of cancer immunotherapy

Abstract Cancer immunotherapy, which boosts the immune system to recognize and attack malignant cells, has revolutionized traditional cancer treatment paradigms. Approaches such as chimeric antigen receptor T cell (CAR-T) therapy and immune checkpoint inhibitors (ICIs) have demonstrated promising th...

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Main Authors: Haixia Li, Quan Zhou, Nan Cao, Chenghao Hu, Jincheng Wang, Yu He, Shan Jiang, Qi Li, Miao Chen, Li Gong, Ming Luo, Xinzhou Deng, Zhiguo Luo
Format: Article
Language:English
Published: BMC 2025-06-01
Series:Cell Communication and Signaling
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Online Access:https://doi.org/10.1186/s12964-025-02270-4
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author Haixia Li
Quan Zhou
Nan Cao
Chenghao Hu
Jincheng Wang
Yu He
Shan Jiang
Qi Li
Miao Chen
Li Gong
Ming Luo
Xinzhou Deng
Zhiguo Luo
author_facet Haixia Li
Quan Zhou
Nan Cao
Chenghao Hu
Jincheng Wang
Yu He
Shan Jiang
Qi Li
Miao Chen
Li Gong
Ming Luo
Xinzhou Deng
Zhiguo Luo
author_sort Haixia Li
collection DOAJ
description Abstract Cancer immunotherapy, which boosts the immune system to recognize and attack malignant cells, has revolutionized traditional cancer treatment paradigms. Approaches such as chimeric antigen receptor T cell (CAR-T) therapy and immune checkpoint inhibitors (ICIs) have demonstrated promising therapeutic outcomes, leading to the approval of numerous immuno-oncology agents by the US Food and Drug Administration (FDA) over the past few decades. Immuno-oncology agents, mainly based on conventional full-length antibodies or their derivatives, are widely used in cancer immunotherapy. However, their large size, unwanted immunogenicity, poor solubility, complex molecular architectures, and limited tumor penetration pose significant challenges that must be addressed. Nanobodies, which are single-domain antibody fragments originating from the variable regions of camelid heavy-chain immunoglobulins, represent the smallest known antigen-binding fragments. In addition to their small size (~ 15 kDa), nanobodies possess a range of advantageous properties, including high stability, strong specificity and affinity for target antigens, low immunogenicity, and cost-effective production. Nonetheless, their short serum half-life and lack of Fc-mediated functions may limit efficacy, which can be addressed by Fc fusion, albumin binding, or multivalent construct design. These properties enable nanobodies to support multifunctional constructs, such as bispecific CARs, nanobody-secreting CARs, dual ICI-containing molecules, and trispecific immune cell-engaging antibodies. In recent years, a growing number of nanobody-based immuno-oncology agents have progressed into preclinical and clinical trials, with several products approved by the US FDA and China’s National Medical Products Administration for cancer therapy. In this review, we explore the unique properties of nanobodies and provide a comprehensive summary of recent preclinical and clinical advancements in nanobody-based immuno-oncology agents, with a focus on their applications in CAR-T cells, ICIs, and immune cell-engaging antibodies. Through their unique capacity to integrate innovative molecular engineering with translational clinical development, nanobody-based therapeutics are poised to revolutionize current paradigms in cancer immunotherapy. Graphical Abstract
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spelling doaj-art-d7c5beaf99e74f7db90eda7b7e9b555e2025-08-20T02:05:41ZengBMCCell Communication and Signaling1478-811X2025-06-0123112510.1186/s12964-025-02270-4Nanobodies and their derivatives: pioneering the future of cancer immunotherapyHaixia Li0Quan Zhou1Nan Cao2Chenghao Hu3Jincheng Wang4Yu He5Shan Jiang6Qi Li7Miao Chen8Li Gong9Ming Luo10Xinzhou Deng11Zhiguo Luo12Department of Clinical Oncology, Hubei Provincial Clinical Research Center for precision Diagnosis and Treatment of liver cancer, Taihe Hospital, Hubei University of MedicineDepartment of Traditional Chinese Medicine, Renmin Hospital, Hubei University of MedicineDepartment of Clinical Oncology, Hubei Provincial Clinical Research Center for precision Diagnosis and Treatment of liver cancer, Taihe Hospital, Hubei University of MedicineDepartment of Clinical Oncology, Hubei Provincial Clinical Research Center for precision Diagnosis and Treatment of liver cancer, Taihe Hospital, Hubei University of MedicineDepartment of Clinical Oncology, Hubei Provincial Clinical Research Center for precision Diagnosis and Treatment of liver cancer, Taihe Hospital, Hubei University of MedicineDepartment of Clinical Oncology, Hubei Provincial Clinical Research Center for precision Diagnosis and Treatment of liver cancer, Taihe Hospital, Hubei University of MedicineDepartment of Clinical Oncology, Hubei Provincial Clinical Research Center for precision Diagnosis and Treatment of liver cancer, Taihe Hospital, Hubei University of MedicineDepartment of Respiratory, Taihe Hospital, Hubei University of MedicineDepartment of Clinical Oncology, Hubei Provincial Clinical Research Center for precision Diagnosis and Treatment of liver cancer, Taihe Hospital, Hubei University of MedicineDepartment of Clinical Oncology, Hubei Provincial Clinical Research Center for precision Diagnosis and Treatment of liver cancer, Taihe Hospital, Hubei University of MedicineDepartment of Clinical Oncology, Hubei Provincial Clinical Research Center for precision Diagnosis and Treatment of liver cancer, Taihe Hospital, Hubei University of MedicineDepartment of Clinical Oncology, Hubei Provincial Clinical Research Center for precision Diagnosis and Treatment of liver cancer, Taihe Hospital, Hubei University of MedicineDepartment of Clinical Oncology, Hubei Provincial Clinical Research Center for precision Diagnosis and Treatment of liver cancer, Taihe Hospital, Hubei University of MedicineAbstract Cancer immunotherapy, which boosts the immune system to recognize and attack malignant cells, has revolutionized traditional cancer treatment paradigms. Approaches such as chimeric antigen receptor T cell (CAR-T) therapy and immune checkpoint inhibitors (ICIs) have demonstrated promising therapeutic outcomes, leading to the approval of numerous immuno-oncology agents by the US Food and Drug Administration (FDA) over the past few decades. Immuno-oncology agents, mainly based on conventional full-length antibodies or their derivatives, are widely used in cancer immunotherapy. However, their large size, unwanted immunogenicity, poor solubility, complex molecular architectures, and limited tumor penetration pose significant challenges that must be addressed. Nanobodies, which are single-domain antibody fragments originating from the variable regions of camelid heavy-chain immunoglobulins, represent the smallest known antigen-binding fragments. In addition to their small size (~ 15 kDa), nanobodies possess a range of advantageous properties, including high stability, strong specificity and affinity for target antigens, low immunogenicity, and cost-effective production. Nonetheless, their short serum half-life and lack of Fc-mediated functions may limit efficacy, which can be addressed by Fc fusion, albumin binding, or multivalent construct design. These properties enable nanobodies to support multifunctional constructs, such as bispecific CARs, nanobody-secreting CARs, dual ICI-containing molecules, and trispecific immune cell-engaging antibodies. In recent years, a growing number of nanobody-based immuno-oncology agents have progressed into preclinical and clinical trials, with several products approved by the US FDA and China’s National Medical Products Administration for cancer therapy. In this review, we explore the unique properties of nanobodies and provide a comprehensive summary of recent preclinical and clinical advancements in nanobody-based immuno-oncology agents, with a focus on their applications in CAR-T cells, ICIs, and immune cell-engaging antibodies. Through their unique capacity to integrate innovative molecular engineering with translational clinical development, nanobody-based therapeutics are poised to revolutionize current paradigms in cancer immunotherapy. Graphical Abstracthttps://doi.org/10.1186/s12964-025-02270-4NanobodyCancer immunotherapyCAR-T therapyImmune checkpoint inhibitorsImmune cell engaging antibodies
spellingShingle Haixia Li
Quan Zhou
Nan Cao
Chenghao Hu
Jincheng Wang
Yu He
Shan Jiang
Qi Li
Miao Chen
Li Gong
Ming Luo
Xinzhou Deng
Zhiguo Luo
Nanobodies and their derivatives: pioneering the future of cancer immunotherapy
Cell Communication and Signaling
Nanobody
Cancer immunotherapy
CAR-T therapy
Immune checkpoint inhibitors
Immune cell engaging antibodies
title Nanobodies and their derivatives: pioneering the future of cancer immunotherapy
title_full Nanobodies and their derivatives: pioneering the future of cancer immunotherapy
title_fullStr Nanobodies and their derivatives: pioneering the future of cancer immunotherapy
title_full_unstemmed Nanobodies and their derivatives: pioneering the future of cancer immunotherapy
title_short Nanobodies and their derivatives: pioneering the future of cancer immunotherapy
title_sort nanobodies and their derivatives pioneering the future of cancer immunotherapy
topic Nanobody
Cancer immunotherapy
CAR-T therapy
Immune checkpoint inhibitors
Immune cell engaging antibodies
url https://doi.org/10.1186/s12964-025-02270-4
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