1
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Klein C, Brinkmann U, Reichert JM, Kontermann RE. The present and future of bispecific antibodies for cancer therapy. Nat Rev Drug Discov 2024; 23:301-319. [PMID: 38448606 DOI: 10.1038/s41573-024-00896-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/22/2024] [Indexed: 03/08/2024]
Abstract
Bispecific antibodies (bsAbs) enable novel mechanisms of action and/or therapeutic applications that cannot be achieved using conventional IgG-based antibodies. Consequently, development of these molecules has garnered substantial interest in the past decade and, as of the end of 2023, 14 bsAbs have been approved: 11 for the treatment of cancer and 3 for non-oncology indications. bsAbs are available in different formats, address different targets and mediate anticancer function via different molecular mechanisms. Here, we provide an overview of recent developments in the field of bsAbs for cancer therapy. We focus on bsAbs that are approved or in clinical development, including bsAb-mediated dual modulators of signalling pathways, tumour-targeted receptor agonists, bsAb-drug conjugates, bispecific T cell, natural killer cell and innate immune cell engagers, and bispecific checkpoint inhibitors and co-stimulators. Finally, we provide an outlook into next-generation bsAbs in earlier stages of development, including trispecifics, bsAb prodrugs, bsAbs that induce degradation of tumour targets and bsAbs acting as cytokine mimetics.
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Affiliation(s)
- Christian Klein
- Roche Pharma Research and Early Development, Roche Innovation Center Zurich, Schlieren, Switzerland.
| | - Ulrich Brinkmann
- Roche Pharma Research and Early Development, Roche Innovation Center Munich, Penzberg, Germany
| | | | - Roland E Kontermann
- Institute of Cell Biology and Immunology, University Stuttgart, Stuttgart, Germany.
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2
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Chen L, Qian W, Pan F, Li D, Yu W, Tong L, Yang Y, Xu Q, Ding J, Dai R, Xian W, Zhu X, Ren P, Zhu H. A trispecific antibody induces potent tumor-directed T-cell activation and antitumor activity by CD3/CD28 co-engagement. Immunotherapy 2024; 16:143-159. [PMID: 38126157 DOI: 10.2217/imt-2023-0256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2023] Open
Abstract
Aim: A novel CD19xCD3xCD28 trispecific antibody with a tandem single-chain variable fragments (scFv) structure was developed for the treatment of B-cell malignancies. Methods: The trispecific antibody in inducing tumor-directed T-cell activation and cytotoxicity was evaluated in vitro and in vivo and compared with its bispecific counterpart BiTE-CD19xCD3 lacking a CD28-targeting domain. Results: The trispecific antibody with a co-stimulatory domain exhibited augmented T-cell activation and memory T-cell differentiation capability and it induced faster tumor cell lysis than the bispecific antibody. RNAseq analysis revealed that the trispecific antibody modulates CD3/TCR complex-derived signal and upregulates antiapoptotic factors to influence the survival of T cells. Conclusion: By CD3/CD28 co-engagement, the trispecific antibody demonstrated its advantages in T-cell immunity and potential use as a more powerful and long-lasting T-cell engager.
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Affiliation(s)
- Li Chen
- CytoCares (Shanghai) Inc., Zhangjiang Hi-Tech Park, Shanghai, 201203, China
| | - Wenjing Qian
- CytoCares (Shanghai) Inc., Zhangjiang Hi-Tech Park, Shanghai, 201203, China
| | - Fangfang Pan
- CytoCares (Shanghai) Inc., Zhangjiang Hi-Tech Park, Shanghai, 201203, China
| | - Debin Li
- Novoprotein Scientific Inc., Wujiang Economic & Technological Development Zone, Suzhou, 215299, China
| | - Weiwei Yu
- GemPharmatech Co., Ltd, Jiangbei New Area, Nanjing, 210031, China
| | - Li Tong
- PharmaLegacy Laboratories, Pudong New Area, Shanghai, 201203, China
| | - Yingying Yang
- CytoCares (Shanghai) Inc., Zhangjiang Hi-Tech Park, Shanghai, 201203, China
| | - Qiming Xu
- CytoCares (Shanghai) Inc., Zhangjiang Hi-Tech Park, Shanghai, 201203, China
| | - Jianfeng Ding
- Novoprotein Scientific Inc., Wujiang Economic & Technological Development Zone, Suzhou, 215299, China
| | - Ruixue Dai
- CytoCares (Shanghai) Inc., Zhangjiang Hi-Tech Park, Shanghai, 201203, China
| | - Weiwei Xian
- CytoCares (Shanghai) Inc., Zhangjiang Hi-Tech Park, Shanghai, 201203, China
| | - Xufeng Zhu
- Novoprotein Scientific Inc., Wujiang Economic & Technological Development Zone, Suzhou, 215299, China
| | - Pu Ren
- CytoCares (Shanghai) Inc., Zhangjiang Hi-Tech Park, Shanghai, 201203, China
| | - Huaxing Zhu
- CytoCares (Shanghai) Inc., Zhangjiang Hi-Tech Park, Shanghai, 201203, China
- Novoprotein Scientific Inc., Wujiang Economic & Technological Development Zone, Suzhou, 215299, China
- Institute of Translational Medicine, Shanghai Jiao Tong University, Shanghai, 200240, China
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3
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Guo X, Wu Y, Xue Y, Xie N, Shen G. Revolutionizing cancer immunotherapy: unleashing the potential of bispecific antibodies for targeted treatment. Front Immunol 2023; 14:1291836. [PMID: 38106416 PMCID: PMC10722299 DOI: 10.3389/fimmu.2023.1291836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Accepted: 11/08/2023] [Indexed: 12/19/2023] Open
Abstract
Recent progressions in immunotherapy have transformed cancer treatment, providing a promising strategy that activates the immune system of the patient to find and eliminate cancerous cells. Bispecific antibodies, which engage two separate antigens or one antigen with two distinct epitopes, are of tremendous concern in immunotherapy. The bi-targeting idea enabled by bispecific antibodies (BsAbs) is especially attractive from a medical standpoint since most diseases are complex, involving several receptors, ligands, and signaling pathways. Several research look into the processes in which BsAbs identify different cancer targets such angiogenesis, reproduction, metastasis, and immune regulation. By rerouting cells or altering other pathways, the bispecific proteins perform effector activities in addition to those of natural antibodies. This opens up a wide range of clinical applications and helps patients with resistant tumors respond better to medication. Yet, further study is necessary to identify the best conditions where to use these medications for treating tumor, their appropriate combination partners, and methods to reduce toxicity. In this review, we provide insights into the BsAb format classification based on their composition and symmetry, as well as the delivery mode, focus on the action mechanism of the molecule, and discuss the challenges and future perspectives in BsAb development.
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Affiliation(s)
- Xiaohan Guo
- West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, China
| | - Yi Wu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, China
| | - Ying Xue
- West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, China
| | - Na Xie
- West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, China
| | - Guobo Shen
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, China
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4
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Lopez-Gomez A, Pelaez-Prestel HF, Juarez I. Approaches to evaluate the specific immune responses to SARS-CoV-2. Vaccine 2023; 41:6434-6443. [PMID: 37770298 DOI: 10.1016/j.vaccine.2023.09.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 07/12/2023] [Accepted: 09/19/2023] [Indexed: 09/30/2023]
Abstract
The SARS-CoV-2 pandemic has a huge impact on public health and global economy, meaning an enormous scientific, political, and social challenge. Studying how infection or vaccination triggers both cellular and humoral responses is essential to know the grade and length of protection generated in the population. Nowadays, scientists and authorities around the world are increasingly concerned about the arrival of new variants, which have a greater spread, due to the high mutation rate of this virus. The aim of this review is to summarize the different techniques available for the study of the immune responses after exposure or vaccination against SARS-CoV-2, showing their advantages and limitations, and proposing suitable combinations of different techniques to achieve extensive information in these studies. We wish that the information provided here will helps other scientists in their studies of the immune response against SARS-CoV-2 after vaccination with new vaccine candidates or infection with upcoming variants.
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Affiliation(s)
- Ana Lopez-Gomez
- Department of Immunology, Ophthalmology and ENT, School of Medicine, Universidad Complutense de Madrid, Madrid, Spain
| | - Hector F Pelaez-Prestel
- Department of Immunology, Ophthalmology and ENT, School of Medicine, Universidad Complutense de Madrid, Madrid, Spain.
| | - Ignacio Juarez
- Department of Immunology, Ophthalmology and ENT, School of Medicine, Universidad Complutense de Madrid, Madrid, Spain
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5
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Meng L, Yang Y, Mortazavi A, Zhang J. Emerging Immunotherapy Approaches for Treating Prostate Cancer. Int J Mol Sci 2023; 24:14347. [PMID: 37762648 PMCID: PMC10531627 DOI: 10.3390/ijms241814347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 09/16/2023] [Accepted: 09/18/2023] [Indexed: 09/29/2023] Open
Abstract
Immunotherapy has emerged as an important approach for cancer treatment, but its clinical efficacy has been limited in prostate cancer compared to other malignancies. This review summarizes key immunotherapy strategies under evaluation for prostate cancer, including immune checkpoint inhibitors, bispecific T cell-engaging antibodies, chimeric antigen receptor (CAR) T cells, therapeutic vaccines, and cytokines. For each modality, the rationale stemming from preclinical studies is discussed along with outcomes from completed clinical trials and strategies to improve clinical efficacy that are being tested in ongoing clinical trials. Imperative endeavors include biomarker discovery for patient selection, deciphering resistance mechanisms, refining cellular therapies such as CAR T cells, and early-stage intervention were reviewed. These ongoing efforts instill optimism that immunotherapy may eventually deliver significant clinical benefits and expand treatment options for patients with advanced prostate cancer.
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Affiliation(s)
- Lingbin Meng
- Division of Medical Oncology, Department of Internal Medicine, The Ohio State University Comprehensive Cancer Center, Columbus, OH 43210, USA; (L.M.); (Y.Y.); (A.M.)
| | - Yuanquan Yang
- Division of Medical Oncology, Department of Internal Medicine, The Ohio State University Comprehensive Cancer Center, Columbus, OH 43210, USA; (L.M.); (Y.Y.); (A.M.)
| | - Amir Mortazavi
- Division of Medical Oncology, Department of Internal Medicine, The Ohio State University Comprehensive Cancer Center, Columbus, OH 43210, USA; (L.M.); (Y.Y.); (A.M.)
| | - Jingsong Zhang
- Department of Genitourinary Oncology, H. Lee Moffitt Cancer Center & Research Institute, University of South Florida, 12902 USF Magnolia Drive, Tampa, FL 33612, USA
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6
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Sun Y, Yu X, Wang X, Yuan K, Wang G, Hu L, Zhang G, Pei W, Wang L, Sun C, Yang P. Bispecific antibodies in cancer therapy: Target selection and regulatory requirements. Acta Pharm Sin B 2023; 13:3583-3597. [PMID: 37719370 PMCID: PMC10501874 DOI: 10.1016/j.apsb.2023.05.023] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 04/25/2023] [Accepted: 05/06/2023] [Indexed: 09/19/2023] Open
Abstract
In recent years, the development of bispecific antibodies (bsAbs) has been rapid, with many new structures and target combinations being created. The boom in bsAbs has led to the successive issuance of industry guidance for their development in the US and China. However, there is a high degree of similarity in target selection, which could affect the development of diversity in bsAbs. This review presents a classification of various bsAbs for cancer therapy based on structure and target selection and examines the advantages of bsAbs over monoclonal antibodies (mAbs). Through database research, we have identified the preferences of available bsAbs combinations, suggesting rational target selection options and warning of potential wastage of medical resources. We have also compared the US and Chinese guidelines for bsAbs in order to provide a reference for their development.
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Affiliation(s)
- Yanze Sun
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
- Institute of Innovative Drug Discovery and Development, China Pharmaceutical University, Nanjing 211198, China
| | - Xinmiao Yu
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
- Institute of Innovative Drug Discovery and Development, China Pharmaceutical University, Nanjing 211198, China
| | - Xiao Wang
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
- Institute of Innovative Drug Discovery and Development, China Pharmaceutical University, Nanjing 211198, China
| | - Kai Yuan
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
- Institute of Innovative Drug Discovery and Development, China Pharmaceutical University, Nanjing 211198, China
| | - Gefei Wang
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
- Institute of Innovative Drug Discovery and Development, China Pharmaceutical University, Nanjing 211198, China
| | - Lingrong Hu
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
- Institute of Innovative Drug Discovery and Development, China Pharmaceutical University, Nanjing 211198, China
| | - Guoyu Zhang
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
- Institute of Innovative Drug Discovery and Development, China Pharmaceutical University, Nanjing 211198, China
| | - Wenli Pei
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
- Institute of Innovative Drug Discovery and Development, China Pharmaceutical University, Nanjing 211198, China
| | - Liping Wang
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
- Institute of Innovative Drug Discovery and Development, China Pharmaceutical University, Nanjing 211198, China
| | - Chengliang Sun
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
- Institute of Innovative Drug Discovery and Development, China Pharmaceutical University, Nanjing 211198, China
| | - Peng Yang
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
- Institute of Innovative Drug Discovery and Development, China Pharmaceutical University, Nanjing 211198, China
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7
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Salek-Ardakani S, Zajonc DM, Croft M. Agonism of 4-1BB for immune therapy: a perspective on possibilities and complications. Front Immunol 2023; 14:1228486. [PMID: 37662949 PMCID: PMC10469789 DOI: 10.3389/fimmu.2023.1228486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 08/03/2023] [Indexed: 09/05/2023] Open
Abstract
Costimulatory receptors on immune cells represent attractive targets for immunotherapy given that these molecules can increase the frequency of individual protective immune cell populations and their longevity, as well as enhance various effector functions. 4-1BB, a member of the TNF receptor superfamily, also known as CD137 and TNFRSF9, is one such molecule that is inducible on several cell types, including T cells and NK cells. Preclinical studies in animal models have validated the notion that stimulating 4-1BB with agonist reagents or its natural ligand could be useful to augment conventional T cell and NK cell immunity to protect against tumor growth and against viral infection. Additionally, stimulating 4-1BB can enhance regulatory T cell function and might be useful in the right context for suppressing autoimmunity. Two human agonist antibodies to 4-1BB have been produced and tested in clinical trials for cancer, with variable results, leading to the production of a wealth of second-generation antibody constructs, including bi- and multi-specifics, with the hope of optimizing activity and selectivity. Here, we review the progress to date in agonism of 4-1BB, discuss the complications in targeting the immune system appropriately to elicit the desired activity, together with challenges in engineering agonists, and highlight the untapped potential of manipulating this molecule in infectious disease and autoimmunity.
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Affiliation(s)
| | - Dirk M. Zajonc
- Center for Autoimmunity and Inflammation, La Jolla Institute for Immunology, La Jolla, CA, United States
| | - Michael Croft
- Center for Autoimmunity and Inflammation, La Jolla Institute for Immunology, La Jolla, CA, United States
- Department of Medicine, University of California (UC) San Diego, La Jolla, CA, United States
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8
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Liu G, Luo P. Targeting CD137 (4-1BB) towards improved safety and efficacy for cancer immunotherapy. Front Immunol 2023; 14:1208788. [PMID: 37334375 PMCID: PMC10272836 DOI: 10.3389/fimmu.2023.1208788] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 05/22/2023] [Indexed: 06/20/2023] Open
Abstract
T cells play a critical role in antitumor immunity, where T cell activation is regulated by both inhibitory and costimulatory receptor signaling that fine-tune T cell activity during different stages of T cell immune responses. Currently, cancer immunotherapy by targeting inhibitory receptors such as CTLA-4 and PD-1/L1, and their combination by antagonist antibodies, has been well established. However, developing agonist antibodies that target costimulatory receptors such as CD28 and CD137/4-1BB has faced considerable challenges, including highly publicized adverse events. Intracellular costimulatory domains of CD28 and/or CD137/4-1BB are essential for the clinical benefits of FDA-approved chimeric antigen receptor T cell (CAR-T) therapies. The major challenge is how to decouple efficacy from toxicity by systemic immune activation. This review focuses on anti-CD137 agonist monoclonal antibodies with different IgG isotypes in clinical development. It discusses CD137 biology in the context of anti-CD137 agonist drug discovery, including the binding epitope selected for anti-CD137 agonist antibody in competition or not with CD137 ligand (CD137L), the IgG isotype of antibodies selected with an impact on crosslinking by Fc gamma receptors, and the conditional activation of anti-CD137 antibodies for safe and potent engagement with CD137 in the tumor microenvironment (TME). We discuss and compare the potential mechanisms/effects of different CD137 targeting strategies and agents under development and how rational combinations could enhance antitumor activities without amplifying the toxicity of these agonist antibodies.
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Affiliation(s)
- Guizhong Liu
- Adagene Inc., San Diego, CA, United States
- Adagene (Suzhou) Limited., Suzhou, China
| | - Peter Luo
- Adagene Inc., San Diego, CA, United States
- Adagene (Suzhou) Limited., Suzhou, China
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9
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Wang D, Hu H, Ding H, Zhao H, Tian F, Chi Q. Elevated expression of TNFRSF4 impacts immune cell infiltration and gene mutation in hepatocellular carcinoma. Cancer Biomark 2023; 36:147-159. [PMID: 36591653 DOI: 10.3233/cbm-210538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
BACKGROUND Hepatocellular carcinoma (HCC) is a highly heterogeneous disease, which makes prognostic prediction challenging.We aimed to investigate association of TNFRSF4 expression with the immune infiltration and gene mutation in HCC. METHODS In this study, the expression profiles and corresponding clinical data of HCC patients were downloaded from the Cancer Genome Atlas (TCGA) database.Kaplan-Meier and Cox regression were used to evaluate the clinical value of TNFRSF4. ESTIMATE and CIBERSORT algorithms were applied to investigate the infiltration ratio of 22 immune cells. The WGCNA and LASSO COX algorithms were performed, establishing a prognostic risk model that was then validated by HCC samples from GEO. Finally, the effects on gene mutation occurring in HCC patients of TNFRSF4 expression and risk score were appraised. RESULTS In HCC tissues, it was found the TNFRSF4 expression profile was significantly different with age, gender, tumor grade, disease stage, prominently affecting the survival outcome and prognosis of patients. Univariate and multivariate COX regression analysis suggested that TNFRSF4 was an independent prognostic marker. Samples of high/low expression of TNFRSF4 were screened for differential genes, and then the WGCNA and LASSO COX constructed a 13-gene signature, excellently dividing samples into hign/low risk groups. Compared with the low-risk group, the overall survival (OS) of high-risk group was markedly lower, with P< 0.0001. By ROC curve analysis, the predictive ability of the 13-gene signature was further confirmed. Both the high/low TNFRSF4 expression and the high/low risk score were demonstrated to exert effects on the frequency of gene mutation in HCC. CONCLUSIONS As an independent prognostic marker of HCC, TNFRSF4 was found simultaneously to affect the immune infiltration of cells and the frequency of gene mutations.
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Affiliation(s)
- Di Wang
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan, China
| | - Huan Hu
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan, China
| | - Huan Ding
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan, China
| | - Han Zhao
- School of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, Anhui, China
| | - Feifei Tian
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan, China
| | - Qingjia Chi
- Department of Engineering Structure and Mechanics, School of Science, Wuhan University of Technology, Wuhan, Hubei, China
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10
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Cable J, Saphire EO, Hayday AC, Wiltshire TD, Mousa JJ, Humphreys DP, Breij ECW, Bruhns P, Broketa M, Furuya G, Hauser BM, Mahévas M, Carfi A, Cantaert T, Kwong PD, Tripathi P, Davis JH, Brewis N, Keyt BA, Fennemann FL, Dussupt V, Sivasubramanian A, Kim PM, Rawi R, Richardson E, Leventhal D, Wolters RM, Geuijen CAW, Sleeman MA, Pengo N, Donnellan FR. Antibodies as drugs-a Keystone Symposia report. Ann N Y Acad Sci 2023; 1519:153-166. [PMID: 36382536 PMCID: PMC10103175 DOI: 10.1111/nyas.14915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Therapeutic antibodies have broad indications across diverse disease states, such as oncology, autoimmune diseases, and infectious diseases. New research continues to identify antibodies with therapeutic potential as well as methods to improve upon endogenous antibodies and to design antibodies de novo. On April 27-30, 2022, experts in antibody research across academia and industry met for the Keystone symposium "Antibodies as Drugs" to present the state-of-the-art in antibody therapeutics, repertoires and deep learning, bispecific antibodies, and engineering.
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Affiliation(s)
| | - Erica Ollmann Saphire
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology, La Jolla, California, USA.,Department of Medicine, University of California San Diego, La Jolla, California, USA
| | - Adrian C Hayday
- Peter Gorer Department of Immunobiology, King's College London, London, UK.,Cancer Research UK Cancer Immunotherapy Accelerator, London, UK.,Immunosurveillance Laboratory, The Francis Crick Institute, London, UK
| | | | - Jarrod J Mousa
- Department of Infectious Diseases and Center for Vaccines and Immunology, College of Veterinary Medicine, Athens, Georgia, USA.,Department of Biochemistry and Molecular Biology, Franklin College of Arts and Sciences, University of Georgia, Athens, Georgia, USA.,Vanderbilt Vaccine Center, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | | | - Esther C W Breij
- Translational Research and Precision Medicine, Genmab BV, Utrecht, the Netherlands
| | - Pierre Bruhns
- Institut Pasteur, Université de Paris, Unit of Antibodies in Therapy and Pathology, Paris, France
| | - Matteo Broketa
- Institut Pasteur, Université de Paris, Unit of Antibodies in Therapy and Pathology, Paris, France
| | - Genta Furuya
- Department of Preventive Medicine and Department of Pathology, Graduate School of Medicine, University of Tokyo, Tokyo, Japan
| | - Blake M Hauser
- Ragon Institute of MGH, MIT, and Harvard, Cambridge, Massachusetts, USA
| | - Matthieu Mahévas
- Service de Médecine Interne, Centre de Référence des Cytopénies Auto-immunes de l'adulte, Centre Hospitalier Universitaire Henri-Mondor, Assistance Publique-Hôpitaux de Paris, Université Paris-Est Créteil, Créteil, France
| | - Andrea Carfi
- Moderna Inc., Cambridge, Massachusetts, USA.,Department of Pathology, Miller School of Medicine, University of Miami, Miami, Florida, USA
| | - Tineke Cantaert
- Immunology Unit, Institut Pasteur du Cambodge, The Pasteur Network, Phnom Penh, Cambodia
| | - Peter D Kwong
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | - Prabhanshu Tripathi
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | | | | | - Bruce A Keyt
- IGM Biosciences, Inc., Mountainview, California, USA
| | | | - Vincent Dussupt
- Emerging Infectious Diseases Branch, U.S. Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, Maryland, USA.,Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, Maryland, USA
| | | | - Philip M Kim
- Department of Molecular Genetics, Donnelly Centre for Cellular and Biomolecular Research, Toronto, Ontario, Canada.,Department of Computer Science, University of Toronto, Toronto, Ontario, Canada
| | - Reda Rawi
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | - Eve Richardson
- Department of Statistics, University of Oxford, Oxford, UK
| | | | - Rachael M Wolters
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee, USA
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11
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Claus C, Ferrara-Koller C, Klein C. The emerging landscape of novel 4-1BB (CD137) agonistic drugs for cancer immunotherapy. MAbs 2023; 15:2167189. [PMID: 36727218 PMCID: PMC9897756 DOI: 10.1080/19420862.2023.2167189] [Citation(s) in RCA: 24] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 01/05/2023] [Accepted: 01/06/2023] [Indexed: 02/03/2023] Open
Abstract
The clinical development of 4-1BB agonists for cancer immunotherapy has raised substantial interest during the past decade. The first generation of 4-1BB agonistic antibodies entering the clinic, urelumab (BMS-663513) and utomilumab (PF-05082566), failed due to (liver) toxicity or lack of efficacy, respectively. The two antibodies display differences in the affinity and the 4-1BB receptor epitope recognition, as well as the isotype, which determines the Fc-gamma-receptor (FcγR) crosslinking activity. Based on this experience a very diverse landscape of second-generation 4-1BB agonists addressing the liabilities of first-generation agonists has recently been developed, with many entering clinical Phase 1 and 2 studies. This review provides an overview focusing on differences and their scientific rationale, as well as challenges foreseen during the clinical development of these molecules.
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Affiliation(s)
- Christina Claus
- Roche Innovation Center Zurich, Roche Pharma Research and Early Development (pRED), Schlieren, Switzerland
| | - Claudia Ferrara-Koller
- Roche Innovation Center Zurich, Roche Pharma Research and Early Development (pRED), Schlieren, Switzerland
| | - Christian Klein
- Roche Innovation Center Zurich, Roche Pharma Research and Early Development (pRED), Schlieren, Switzerland
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12
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Benedetti F, Stadlmayr G, Stadlbauer K, Rüker F, Wozniak-Knopp G. Selection of High-Affinity Heterodimeric Antigen-Binding Fc Fragments from a Large Yeast Display Library. Methods Mol Biol 2023; 2681:131-159. [PMID: 37405647 DOI: 10.1007/978-1-0716-3279-6_9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/06/2023]
Abstract
Antigen-binding Fc (Fcab™) fragments, where a novel antigen binding site is introduced by the mutagenesis of the C-terminal loops of the CH3 domain, function as parts of bispecific IgG-like symmetrical antibodies when they replace their wild-type Fc. Their homodimeric structure typically leads to bivalent antigen binding. In particular, biological situations monovalent engagement, however, would be preferred, either for avoiding agonistic effects leading to safety issues, or the attractive option of combining a single chain (i.e., one half) of an Fcab fragment reactive with different antigens in one antibody. We present the strategies for construction and selection of yeast libraries displaying heterodimeric Fcab fragments and discuss the effects of altered thermostability of the basic Fc scaffold and novel library designs that lead to isolation of highly affine antigen binding clones.
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Affiliation(s)
- Filippo Benedetti
- Christian Doppler Laboratory for Innovative Immunotherapeutics, Institute of Molecular Biology, Department of Biotechnology, University of Natural Resources and Life Sciences (BOKU), Vienna, Austria
| | - Gerhard Stadlmayr
- Christian Doppler Laboratory for Innovative Immunotherapeutics, Institute of Molecular Biology, Department of Biotechnology, University of Natural Resources and Life Sciences (BOKU), Vienna, Austria
| | - Katharina Stadlbauer
- Christian Doppler Laboratory for Innovative Immunotherapeutics, Institute of Molecular Biology, Department of Biotechnology, University of Natural Resources and Life Sciences (BOKU), Vienna, Austria
| | - Florian Rüker
- Christian Doppler Laboratory for Innovative Immunotherapeutics, Institute of Molecular Biology, Department of Biotechnology, University of Natural Resources and Life Sciences (BOKU), Vienna, Austria
| | - Gordana Wozniak-Knopp
- Christian Doppler Laboratory for Innovative Immunotherapeutics, Institute of Molecular Biology, Department of Biotechnology, University of Natural Resources and Life Sciences (BOKU), Vienna, Austria.
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13
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Jhajj HS, Lwo TS, Yao EL, Tessier PM. Unlocking the potential of agonist antibodies for treating cancer using antibody engineering. Trends Mol Med 2023; 29:48-60. [PMID: 36344331 PMCID: PMC9742327 DOI: 10.1016/j.molmed.2022.09.012] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 09/22/2022] [Accepted: 09/30/2022] [Indexed: 11/06/2022]
Abstract
Agonist antibodies that target immune checkpoints, such as those in the tumor necrosis factor receptor (TNFR) superfamily, are an important class of emerging therapeutics due to their ability to regulate immune cell activity, especially for treating cancer. Despite their potential, to date, they have shown limited clinical utility and further antibody optimization is urgently needed to improve their therapeutic potential. Here, we discuss key antibody engineering approaches for improving the activity of antibody agonists by optimizing their valency, specificity for different receptors (e.g., bispecific antibodies) and epitopes (e.g., biepitopic or biparatopic antibodies), and Fc affinity for Fcγ receptors (FcγRs). These powerful approaches are being used to develop the next generation of cancer immunotherapeutics with improved efficacy and safety.
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Affiliation(s)
- Harkamal S Jhajj
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109, USA; Biointerfaces Institute, University of Michigan, Ann Arbor, MI 48109, USA
| | - Timon S Lwo
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109, USA; Biointerfaces Institute, University of Michigan, Ann Arbor, MI 48109, USA
| | - Emily L Yao
- Department of Chemistry, University of Michigan, Ann Arbor, MI 48109, USA; Biointerfaces Institute, University of Michigan, Ann Arbor, MI 48109, USA
| | - Peter M Tessier
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109, USA; Department of Pharmaceutical Sciences, University of Michigan, Ann Arbor, MI 48109, USA; Department of Chemical Engineering, University of Michigan, Ann Arbor, MI 48109, USA; Biointerfaces Institute, University of Michigan, Ann Arbor, MI 48109, USA.
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14
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Hamid O, Chiappori AA, Thompson JA, Doi T, Hu-Lieskovan S, Eskens FALM, Ros W, Diab A, Spano JP, Rizvi NA, Wasser JS, Angevin E, Ott PA, Forgie A, Yang W, Guo C, Chou J, El-Khoueiry AB. First-in-human study of an OX40 (ivuxolimab) and 4-1BB (utomilumab) agonistic antibody combination in patients with advanced solid tumors. J Immunother Cancer 2022; 10:jitc-2022-005471. [PMID: 36302562 PMCID: PMC9621185 DOI: 10.1136/jitc-2022-005471] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/03/2022] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND Ivuxolimab (PF-04518600) and utomilumab (PF-05082566) are humanized agonistic IgG2 monoclonal antibodies against OX40 and 4-1BB, respectively. This first-in-human, multicenter, open-label, phase I, dose-escalation/dose-expansion study explored safety, tolerability, pharmacokinetics, pharmacodynamics, and antitumor activity of ivuxolimab+utomilumab in patients with advanced solid tumors. METHODS Dose-escalation: patients with advanced bladder, gastric, or cervical cancer, melanoma, head and neck squamous cell carcinoma, or non-small cell lung cancer (NSCLC) who were unresponsive to available therapies, had no standard therapy available or declined standard therapy were enrolled into five dose cohorts: ivuxolimab (0.1-3 mg/kg every 2 weeks (Q2W)) intravenously plus utomilumab (20 or 100 mg every 4 weeks (Q4W)) intravenously. Dose-expansion: patients with melanoma (n=10) and NSCLC (n=20) who progressed on prior anti-programmed death receptor 1/programmed death ligand-1 and/or anti-cytotoxic T-lymphocyte-associated antigen 4 (melanoma) received ivuxolimab 30 mg Q2W intravenously plus utomilumab 20 mg Q4W intravenously. Adverse events (AEs) were graded per National Cancer Institute Common Terminology Criteria for Adverse Events V.4.03 and efficacy was assessed using Response Evaluation Criteria in Solid Tumors (RECIST) V.1.1 and immune-related RECIST (irRECIST). Paired tumor biopsies and whole blood were collected to assess pharmacodynamic effects and immunophenotyping. Whole blood samples were collected longitudinally for immunophenotyping. RESULTS Dose-escalation: 57 patients were enrolled; 2 (3.5%) patients with melanoma (0.3 mg/kg+20 mg and 0.3 mg/kg+100 mg) achieved partial response (PR), 18 (31.6%) patients achieved stable disease (SD); the disease control rate (DCR) was 35.1% across all dose levels. Dose-expansion: 30 patients were enrolled; 1 patient with NSCLC achieved PR lasting >77 weeks. Seven of 10 patients with melanoma (70%) and 7 of 20 patients with NSCLC (35%) achieved SD: median (range) duration of SD was 18.9 (13.9-49.0) weeks for the melanoma cohort versus 24.1 (14.3-77.9+) weeks for the NSCLC cohort; DCR (NSCLC) was 40%. Grade 3-4 treatment-emergent AEs were reported in 28 (49.1%) patients versus 11 (36.7%) patients in dose-escalation and dose-expansion, respectively. There were no grade 5 AEs deemed attributable to treatment. Ivuxolimab area under the concentration-time curve increased in a dose-dependent manner at 0.3-3 mg/kg doses. CONCLUSIONS Ivuxolimab+utomilumab was found to be well tolerated and demonstrated preliminary antitumor activity in selected groups of patients. TRIAL REGISTRATION NUMBER NCT02315066.
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Affiliation(s)
- Omid Hamid
- Translational Research and Immunotherapy, The Angeles Clinic and Research Institute, A Cedars-Sinai Affiliate, Los Angeles, California, USA
| | | | | | - Toshihiko Doi
- Department of Experimental Therapeutics, National Cancer Center Hospital East, Kashiwa, Japan
| | - Siwen Hu-Lieskovan
- Department of Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California, USA
| | - Ferry A L M Eskens
- Department of Medical Oncology, Erasmus MC Cancer Institute, Rotterdam, The Netherlands
| | - Willeke Ros
- Department of Pharmacology, Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Adi Diab
- Department of Melanoma Medical Oncology, UT MD Anderson Cancer Center, Houston, Texas, USA
| | - Jean-Philippe Spano
- Medical Oncology, APHP-Sorbonne University, IPLEs Inserm1136, Pitie-Salpetrière Hospital-Paris, Paris, France
| | - Naiyer A Rizvi
- Department of Medicine, Columbia University Medical Center, New York, New York, USA
| | - Jeffrey S Wasser
- Neag Comprehensive Cancer Center, University of Connecticut School of Medicine, Farmington, Connecticut, USA
| | - Eric Angevin
- Drug Development Department, Institut Gustave Roussy, Villejuif, France
| | - Patrick A Ott
- Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - Alison Forgie
- Translational Oncology, Pfizer Inc, San Francisco, California, USA
| | - Wenjing Yang
- Oncology Computational Biology, Pfizer Inc, San Diego, Calfornia, USA
| | - Cen Guo
- Clinical Pharmacology, Pfizer Inc, San Diego, California, USA
| | - Jeffrey Chou
- Early Oncology Development and Clinical Research, Pfizer Inc, San Francisco, California, USA
| | - Anthony B El-Khoueiry
- Department of Internal Medicine, Division of Medical Oncology, University of Southern California Norris Comprehensive Cancer Center, Los Angeles, California, USA
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15
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Underwood DJ, Bettencourt J, Jawad Z. The manufacturing considerations of bispecific antibodies. Expert Opin Biol Ther 2022; 22:1043-1065. [PMID: 35771976 DOI: 10.1080/14712598.2022.2095900] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
INTRODUCTION Antibody therapies have made huge strides in providing safe and efficacious drugs for autoimmune, cancer and infectious disease. These bispecific antibodies can be assembled from the basic building blocks of IgGs, resulting in dozens of formats. AREAS COVERED It is important to consider the manufacturability of these formats early in the antibody discovery phases. Broadly categorizing bispecific antibodies into IgG-like, fragment-based, appended and hybrid formats can help in looking at early manufacturability considerations. EXPERT OPINION Ideally, bispecific antibody manufacturing should contain a minimal number of steps, with processes that give high yields of protein with no contaminants. Many of these have been determined for the fragment-based bispecific blinatumomab and the IgG-like bispecifics from hybridomas. However, for new formats, these need to be considered early in the research and development pipeline. The hybrid formats offer an unusual alternative in generating high pure yields of bispecific molecules if the engineering challenges can be deciphered.
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Affiliation(s)
| | | | - Zahra Jawad
- Agenus inc., 3 Forbes Road, Lexington, MA, 02421-7305, United States.,Creasallis ltd, Babraham Research Campus, Babraham, Cambridgeshire, CB22 3AT, United Kingdom
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16
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Muik A, Adams Iii HC, Gieseke F, Altintas I, Schoedel KB, Blum JM, Sänger B, Burm SM, Stanganello E, Verzijl D, Spires VM, Vascotto F, Toker A, Quinkhardt J, Fereshteh M, Diken M, Satijn DPE, Kreiter S, Ahmadi T, Breij ECW, Türeci Ö, Sasser K, Sahin U, Jure-Kunkel M. DuoBody-CD40x4-1BB induces dendritic-cell maturation and enhances T-cell activation through conditional CD40 and 4-1BB agonist activity. J Immunother Cancer 2022; 10:jitc-2021-004322. [PMID: 35688554 PMCID: PMC9189854 DOI: 10.1136/jitc-2021-004322] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/26/2022] [Indexed: 11/24/2022] Open
Abstract
Background Despite the preclinical promise of CD40 and 4-1BB as immuno-oncology targets, clinical efforts evaluating CD40 and 4-1BB agonists as monotherapy have found limited success. DuoBody-CD40×4-1BB (GEN1042/BNT312) is a novel investigational Fc-inert bispecific antibody for dual targeting and conditional stimulation of CD40 and 4-1BB to enhance priming and reactivation of tumor-specific immunity in patients with cancer. Methods Characterization of DuoBody-CD40×4-1BB in vitro was performed in a broad range of functional immune cell assays, including cell-based reporter assays, T-cell proliferation assays, mixed-lymphocyte reactions and tumor-infiltrating lymphocyte assays, as well as live-cell imaging. The in vivo activity of DuoBody-CD40×4-1BB was assessed in blood samples from patients with advanced solid tumors that were treated with DuoBody-CD40×4-1BB in the dose-escalation phase of the first-in-human clinical trial (NCT04083599). Results DuoBody-CD40×4-1BB exhibited conditional CD40 and 4-1BB agonist activity that was strictly dependent on crosslinking of both targets. Thereby, DuoBody-CD40×4-1BB strengthened the dendritic cell (DC)/T-cell immunological synapse, induced DC maturation, enhanced T-cell proliferation and effector functions in vitro and enhanced expansion of patient-derived tumor-infiltrating lymphocytes ex vivo. The addition of PD-1 blocking antibodies resulted in potentiation of T-cell activation and effector functions in vitro compared with either monotherapy, providing combination rationale. Furthermore, in a first-in-human clinical trial, DuoBody-CD40×4-1BB mediated clear immune modulation of peripheral antigen presenting cells and T cells in patients with advanced solid tumors. Conclusion DuoBody-CD40×4-1BB is capable of enhancing antitumor immunity by modulating DC and T-cell functions and shows biological activity in patients with advanced solid tumors. These findings demonstrate that targeting of these two pathways with an Fc-inert bispecific antibody may be an efficacious approach to (re)activate tumor-specific immunity and support the clinical investigation of DuoBody-CD40×4-1BB for the treatment of cancer.
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Affiliation(s)
| | | | | | - Isil Altintas
- Translational Research and Precision Medicine, Genmab BV, Utrecht, The Netherlands
| | | | | | | | - Saskia M Burm
- Translational Research and Precision Medicine, Genmab BV, Utrecht, The Netherlands
| | - Eliana Stanganello
- TRON-Translational Oncology at the University Medical Center of the Johannes Gutenberg University gGmbH, Mainz, Germany
| | - Dennis Verzijl
- Translational Research and Precision Medicine, Genmab BV, Utrecht, The Netherlands
| | | | - Fulvia Vascotto
- TRON-Translational Oncology at the University Medical Center of the Johannes Gutenberg University gGmbH, Mainz, Germany
| | | | | | | | | | | | | | - Tahamtan Ahmadi
- Experimental Medicine, Genmab US Inc, Plainsboro, New Jersey, USA
| | - Esther C W Breij
- Translational Research and Precision Medicine, Genmab BV, Utrecht, The Netherlands
| | | | | | - Ugur Sahin
- BioNTech SE, Mainz, Germany.,TRON-Translational Oncology at the University Medical Center of the Johannes Gutenberg University gGmbH, Mainz, Germany
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17
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Bispecific mAb2 Antibodies Targeting CD59 Enhance the Complement-Dependent Cytotoxicity Mediated by Rituximab. Int J Mol Sci 2022; 23:ijms23095208. [PMID: 35563599 PMCID: PMC9103234 DOI: 10.3390/ijms23095208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Revised: 04/29/2022] [Accepted: 05/03/2022] [Indexed: 12/04/2022] Open
Abstract
Inhibition of complement activation via the overexpression of complement-regulatory proteins (CRPs), most notably CD46, CD55 and CD59, is an efficient mechanism of disguise of cancer cells from a host immune system. This phenomenon extends to counteract the potency of therapeutic antibodies that could lyse target cells by eliciting complement cascade. The manifold functions and ubiquitous expression of CRPs preclude their systemic specific inhibition. We selected CD59-specific Fc fragments with a novel antigen binding site (Fcabs) from yeast display libraries using recombinant antigens expressed in bacterial or mammalian cells. To produce a bispecific antibody, we endowed rituximab, a clinically applied anti-CD20 antibody, used for therapy of various lymphoid malignancies, with an anti-CD59 Fcab. This bispecific antibody was able to induce more potent complement-dependent cytotoxicity for CD20 and CD59 expressing Raji cell line measured with lactate dehydrogenase-release assay, but had no effect on the cells with lower levels of the primary CD20 antigen or CD20-negative cells. Such molecules are promising candidates for future therapeutic development as they elicit a higher specific cytotoxicity at a lower concentration and hence cause a lower exhaustion of complement components.
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18
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Sönmez C, Wölfer J, Holling M, Brokinkel B, Stummer W, Wiendl H, Thomas C, Schulte-Mecklenbeck A, Grauer OM. Blockade of inhibitory killer cell immunoglobulin-like receptors and IL-2 triggering reverses the functional hypoactivity of tumor-derived NK-cells in glioblastomas. Sci Rep 2022; 12:6769. [PMID: 35474089 PMCID: PMC9042843 DOI: 10.1038/s41598-022-10680-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 04/11/2022] [Indexed: 11/09/2022] Open
Abstract
Killer cell immunoglobulin-like receptors (KIRs) comprise a group of highly polymorphic inhibitory receptors which are specific for classical HLA class-I molecules. Peripheral blood and freshly prepared tumor cell suspensions (n = 60) as well as control samples (n = 32) were investigated for the distribution, phenotype, and functional relevance of CD158ab/KIR2DL1,-2/3 expressing NK-cells in glioblastoma (GBM) patients. We found that GBM were scarcely infiltrated by NK-cells that preferentially expressed CD158ab/KIR2DL1,-2/3 as inhibitory receptors, displayed reduced levels of the activating receptors CD335/NKp46, CD226/DNAM-1, CD159c/NKG2C, and showed diminished capacity to produce IFN-γ and perforin. Functional hypoactivity of GBM-derived NK-cells persisted despite IL-2 preactivation. Blockade with a specific KIR2DL-1,2/3 monoclonal antibody reversed NK-cell inhibition and significantly enhanced degranulation and IFN-γ production of IL-2 preactivated NK-cells in the presence of primary GBM cells and HLA-C expressing but not HLA class-I deficient K562 cells. Additional analysis revealed that significant amounts of IL-2 could be produced by tumor-derived CD4+ and CD8+CD45RA- memory T-cells after combined anti-CD3/anti-CD28 stimulation. Our data indicate that both blockade of inhibitory KIR and IL-2 triggering of tumor-derived NK-cells are necessary to enhance NK-cell responsiveness in GBM.
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Affiliation(s)
- Cüneyt Sönmez
- Department of Neurology With Institute of Translational Neurology, University Hospital Münster, Albert-Schweitzer-Campus 1, Building A1, 48149, Münster, Germany.,Department of Spine Surgery, Klinikum Herford, 32049, Herford, Germany
| | - Johannes Wölfer
- Department of Neurosurgery, University Hospital Münster, Münster, Germany.,Department of Neurosurgery and Spine Surgery, Hufeland Klinikum GmbH, 99974, Mühlhausen, Germany
| | - Markus Holling
- Department of Neurosurgery, University Hospital Münster, Münster, Germany
| | - Benjamin Brokinkel
- Department of Neurosurgery, University Hospital Münster, Münster, Germany
| | - Walter Stummer
- Department of Neurosurgery, University Hospital Münster, Münster, Germany
| | - Heinz Wiendl
- Department of Neurology With Institute of Translational Neurology, University Hospital Münster, Albert-Schweitzer-Campus 1, Building A1, 48149, Münster, Germany
| | - Christian Thomas
- Institute of Neuropathology, University Hospital Münster, Münster, Germany
| | - Andreas Schulte-Mecklenbeck
- Department of Neurology With Institute of Translational Neurology, University Hospital Münster, Albert-Schweitzer-Campus 1, Building A1, 48149, Münster, Germany
| | - Oliver M Grauer
- Department of Neurology With Institute of Translational Neurology, University Hospital Münster, Albert-Schweitzer-Campus 1, Building A1, 48149, Münster, Germany.
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19
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Yadav R, Redmond WL. Current Clinical Trial Landscape of OX40 Agonists. Curr Oncol Rep 2022; 24:951-960. [PMID: 35352295 DOI: 10.1007/s11912-022-01265-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/26/2022] [Indexed: 12/17/2022]
Abstract
PURPOSE OF REVIEW Despite the efficacy of immune checkpoint blockade (ICB) immunotherapy, most cancer patients still develop progressive disease necessitating additional treatment options. One approach is ligation of the OX40 (CD134) costimulatory receptor which promotes T cell activation, effector function, and the generation of long-lived memory cells. RECENT FINDINGS Numerous preclinical studies have demonstrated that OX40 agonists alone or in combination with ICB (e.g., anti-PD-1, anti-PD-L1, and anti-CTLA-4) augment anti-tumor immunity. In this review, we discuss the impact of OX40 agonists on T cell function and the therapeutic potential of OX40 agonists alone or in conjunction with ICB for patients with advanced malignancies.
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Affiliation(s)
- Rashi Yadav
- Earle A. Chiles Research Institute, Providence Cancer Institute, 4805 NE Glisan St., 2N35, Portland, OR, 97213, USA
| | - William L Redmond
- Earle A. Chiles Research Institute, Providence Cancer Institute, 4805 NE Glisan St., 2N35, Portland, OR, 97213, USA.
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20
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Thoreau F, Chudasama V. Enabling the next steps in cancer immunotherapy: from antibody-based bispecifics to multispecifics, with an evolving role for bioconjugation chemistry. RSC Chem Biol 2022; 3:140-169. [PMID: 35360884 PMCID: PMC8826860 DOI: 10.1039/d1cb00082a] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 10/22/2021] [Indexed: 12/02/2022] Open
Abstract
In the past two decades, immunotherapy has established itself as one of the leading strategies for cancer treatment, as illustrated by the exponentially growing number of related clinical trials. This trend was, in part, prompted by the clinical success of both immune checkpoint modulation and immune cell engagement, to restore and/or stimulate the patient's immune system's ability to fight the disease. These strategies were sustained by progress in bispecific antibody production. However, despite the decisive progress made in the treatment of cancer, toxicity and resistance are still observed in some cases. In this review, we initially provide an overview of the monoclonal and bispecific antibodies developed with the objective of restoring immune system functions to treat cancer (cancer immunotherapy), through immune checkpoint modulation, immune cell engagement or a combination of both. Their production, design strategy and impact on the clinical trial landscape are also addressed. In the second part, the concept of multispecific antibody formats, notably MuTICEMs (Multispecific Targeted Immune Cell Engagers & Modulators), as a possible answer to current immunotherapy limitations is investigated. We believe it could be the next step to take for cancer immunotherapy research and expose why bioconjugation chemistry might play a key role in these future developments.
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Affiliation(s)
- Fabien Thoreau
- Department of Chemistry, University College London 20 Gordon Street London WC1H 0AJ UK
| | - Vijay Chudasama
- Department of Chemistry, University College London 20 Gordon Street London WC1H 0AJ UK
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21
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Jin S, Sun Y, Liang X, Gu X, Ning J, Xu Y, Chen S, Pan L. Emerging new therapeutic antibody derivatives for cancer treatment. Signal Transduct Target Ther 2022; 7:39. [PMID: 35132063 PMCID: PMC8821599 DOI: 10.1038/s41392-021-00868-x] [Citation(s) in RCA: 151] [Impact Index Per Article: 75.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 12/14/2021] [Accepted: 12/16/2021] [Indexed: 12/18/2022] Open
Abstract
Monoclonal antibodies constitute a promising class of targeted anticancer agents that enhance natural immune system functions to suppress cancer cell activity and eliminate cancer cells. The successful application of IgG monoclonal antibodies has inspired the development of various types of therapeutic antibodies, such as antibody fragments, bispecific antibodies, and antibody derivatives (e.g., antibody–drug conjugates and immunocytokines). The miniaturization and multifunctionalization of antibodies are flexible and viable strategies for diagnosing or treating malignant tumors in a complex tumor environment. In this review, we summarize antibodies of various molecular types, antibody applications in cancer therapy, and details of clinical study advances. We also discuss the rationale and mechanism of action of various antibody formats, including antibody–drug conjugates, antibody–oligonucleotide conjugates, bispecific/multispecific antibodies, immunocytokines, antibody fragments, and scaffold proteins. With advances in modern biotechnology, well-designed novel antibodies are finally paving the way for successful treatments of various cancers, including precise tumor immunotherapy, in the clinic.
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Affiliation(s)
- Shijie Jin
- Institute of Drug Metabolism and Pharmaceutical Analysis, College of Pharmaceutical Sciences, Zhejiang University, 310058, Hangzhou, China
| | - Yanping Sun
- Institute of Drug Metabolism and Pharmaceutical Analysis, College of Pharmaceutical Sciences, Zhejiang University, 310058, Hangzhou, China
| | - Xiao Liang
- Institute of Drug Metabolism and Pharmaceutical Analysis, College of Pharmaceutical Sciences, Zhejiang University, 310058, Hangzhou, China
| | - Xinyu Gu
- Institute of Drug Metabolism and Pharmaceutical Analysis, College of Pharmaceutical Sciences, Zhejiang University, 310058, Hangzhou, China
| | - Jiangtao Ning
- Institute of Drug Metabolism and Pharmaceutical Analysis, College of Pharmaceutical Sciences, Zhejiang University, 310058, Hangzhou, China
| | - Yingchun Xu
- Institute of Drug Metabolism and Pharmaceutical Analysis, College of Pharmaceutical Sciences, Zhejiang University, 310058, Hangzhou, China
| | - Shuqing Chen
- Institute of Drug Metabolism and Pharmaceutical Analysis, College of Pharmaceutical Sciences, Zhejiang University, 310058, Hangzhou, China. .,Department of Precision Medicine on Tumor Therapeutics, ZJU-Hangzhou Global Scientific and Technological Innovation Center, 311200, Hangzhou, China.
| | - Liqiang Pan
- Institute of Drug Metabolism and Pharmaceutical Analysis, College of Pharmaceutical Sciences, Zhejiang University, 310058, Hangzhou, China. .,The First Affiliated Hospital, Zhejiang University School of Medicine, 310003, Hangzhou, China. .,Key Laboratory of Pancreatic Disease of Zhejiang Province, 310003, Hangzhou, China.
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22
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Yi L, Jin X, Wang J, Yan Z, Cheng X, Wen T, Yang B, Wang X, Che N, Liu Z, Zhang H. CD137 Agonists Targeting CD137-Mediated Negative Regulation Show Enhanced Antitumor Efficacy in Lung Cancer. Front Immunol 2022; 13:771809. [PMID: 35197968 PMCID: PMC8859117 DOI: 10.3389/fimmu.2022.771809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Accepted: 01/19/2022] [Indexed: 11/18/2022] Open
Abstract
Negative immune regulation plays a notable role in tumor immunity. This study aimed to confirm that CD137 mediates negative immunoregulation as well as agonist activity in tumor immunity. Soluble CD137 (sCD137), a prominent splice variant of membrane-bound CD137 (mCD137), was identified, and its concentration in the blood of lung cancer patients was increased. The baseline concentration of sCD137 in the blood was negatively correlated with the efficacy of neoadjuvant immunochemotherapy in a pilot study. The percentage of CD137+ regulatory T cells (Tregs) in the blood of lung cancer patients was also increased, and further enriched at the tumor site; Foxp3, CTLA-4, IL-10, IL-35-Ebi3, sCD137 and costimulatory molecules expression were also higher, indicating increased immunosuppressive activity. A high percentage of CD137+ Tregs in the tumor was associated with worse OS outcomes among patients with high CD137+CD8+ T cell infiltration levels. Notably, targeting CD137+ Tregs using an engineered CD137 agonist with wild-type mouse IgG2a Fc clearly decreased the total Treg numbers and eliminated the tumor in the CT26 model and prolonged the survival rate of a Lewis lung carcinoma (LLC) model. These results indicated it may be possible to empower CD137 agonist with ability to abolish CD137-mediated negative regulation to enhance its antitumor efficacy.
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Affiliation(s)
- Ling Yi
- Department of Central Laboratory, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing Chest Hospital, Capital Medical University, Beijing, China
| | - Xin Jin
- Department of Central Laboratory, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing Chest Hospital, Capital Medical University, Beijing, China
| | - Jinghui Wang
- Department of Medical Oncology, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing Chest Hospital, Capital Medical University, Beijing, China
| | - Zhuohong Yan
- Department of Central Laboratory, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing Chest Hospital, Capital Medical University, Beijing, China
| | - Xu Cheng
- No. 2 Department of Thoracic Surgery, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing Chest Hospital, Capital Medical University, Beijing, China
| | - Tao Wen
- No. 2 Department of Thoracic Surgery, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing Chest Hospital, Capital Medical University, Beijing, China
| | - Bin Yang
- Department of Central Laboratory, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing Chest Hospital, Capital Medical University, Beijing, China
| | - Xiaojue Wang
- Department of Central Laboratory, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing Chest Hospital, Capital Medical University, Beijing, China
| | - Nanying Che
- Department of Pathology, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing Chest Hospital, Capital Medical University, Beijing, China
| | - Zhidong Liu
- No. 2 Department of Thoracic Surgery, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing Chest Hospital, Capital Medical University, Beijing, China
- *Correspondence: Hongtao Zhang, ; Zhidong Liu,
| | - Hongtao Zhang
- Department of Central Laboratory, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing Chest Hospital, Capital Medical University, Beijing, China
- *Correspondence: Hongtao Zhang, ; Zhidong Liu,
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23
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Natale V, Stadlmayr G, Benedetti F, Stadlbauer K, Rüker F, Wozniak-Knopp G. Trispecific antibodies produced from mAb 2 pairs by controlled Fab-arm exchange. Biol Chem 2022; 403:509-523. [PMID: 35089662 DOI: 10.1515/hsz-2021-0376] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Accepted: 01/18/2022] [Indexed: 12/13/2022]
Abstract
Bispecific antibodies and antibody fragments are therapeutics of growing importance. They are clinically applied for effector cell engagement, enhanced targeting selectivity, addressing of multiple cellular pathways and active transfer of certain activities into difficult-to-reach compartments. These functionalities could profit from a third antigen specificity. In this work we have employed symmetrical bispecific parental antibodies of mAb2 format, which feature a novel antigen binding site in the CH3 domains, and engineered them with a minimal number of point mutations to guide the formation of a controlled Fab-arm exchanged trispecific antibody at a high yield after reduction and re-oxidation. Two model antibodies, one reactive with EGFR, Her2 and VEGF, and one with Fab-arms binding to Ang2 and VEGF and an Fc fragment binding to VEGF, were prepared and examined for heterodimeric status, stability, antigen binding properties and biological activity. Resulting molecules were of good biophysical characteristics and retained antigen reactivity and biological activity of the parental mAb2 constructs.
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Affiliation(s)
- Veronica Natale
- Department of Biotechnology, Christian Doppler Laboratory for Innovative Immunotherapeutics, Institute of Molecular Biotechnology, University of Natural Resources and Life Sciences, Vienna (BOKU), Muthgasse 18, A-1190 Vienna, Austria
| | - Gerhard Stadlmayr
- Department of Biotechnology, Christian Doppler Laboratory for Innovative Immunotherapeutics, Institute of Molecular Biotechnology, University of Natural Resources and Life Sciences, Vienna (BOKU), Muthgasse 18, A-1190 Vienna, Austria
| | - Filippo Benedetti
- Department of Biotechnology, Christian Doppler Laboratory for Innovative Immunotherapeutics, Institute of Molecular Biotechnology, University of Natural Resources and Life Sciences, Vienna (BOKU), Muthgasse 18, A-1190 Vienna, Austria
| | - Katharina Stadlbauer
- Department of Biotechnology, Christian Doppler Laboratory for Innovative Immunotherapeutics, Institute of Molecular Biotechnology, University of Natural Resources and Life Sciences, Vienna (BOKU), Muthgasse 18, A-1190 Vienna, Austria
| | - Florian Rüker
- Department of Biotechnology, Christian Doppler Laboratory for Innovative Immunotherapeutics, Institute of Molecular Biotechnology, University of Natural Resources and Life Sciences, Vienna (BOKU), Muthgasse 18, A-1190 Vienna, Austria
| | - Gordana Wozniak-Knopp
- Department of Biotechnology, Christian Doppler Laboratory for Innovative Immunotherapeutics, Institute of Molecular Biotechnology, University of Natural Resources and Life Sciences, Vienna (BOKU), Muthgasse 18, A-1190 Vienna, Austria
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24
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Schardt JS, Jhajj HS, O’Meara RL, Lwo TS, Smith MD, Tessier PM. Agonist antibody discovery: Experimental, computational, and rational engineering approaches. Drug Discov Today 2022; 27:31-48. [PMID: 34571277 PMCID: PMC8714685 DOI: 10.1016/j.drudis.2021.09.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 07/19/2021] [Accepted: 09/20/2021] [Indexed: 01/03/2023]
Abstract
Agonist antibodies that activate cellular signaling have emerged as promising therapeutics for treating myriad pathologies. Unfortunately, the discovery of rare antibodies with the desired agonist functions is a major bottleneck during drug development. Nevertheless, there has been important recent progress in discovering and optimizing agonist antibodies against a variety of therapeutic targets that are activated by diverse signaling mechanisms. Herein, we review emerging high-throughput experimental and computational methods for agonist antibody discovery as well as rational molecular engineering methods for optimizing their agonist activity.
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Affiliation(s)
- John S. Schardt
- Department of Chemical Engineering, University of Michigan, Ann Arbor, MI 48109, USA,Department of Pharmaceutical Sciences, University of Michigan, Ann Arbor, MI 48109, USA,Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
| | - Harkamal S. Jhajj
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109, USA,Biointerfaces Institute, University of Michigan, Ann Arbor, MI 48109, USA
| | - Ryen L. O’Meara
- Department of Chemical Engineering, University of Michigan, Ann Arbor, MI 48109, USA,Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
| | - Timon S. Lwo
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109, USA,Biointerfaces Institute, University of Michigan, Ann Arbor, MI 48109, USA
| | - Matthew D. Smith
- Department of Chemical Engineering, University of Michigan, Ann Arbor, MI 48109, USA,Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
| | - Peter M. Tessier
- Department of Chemical Engineering, University of Michigan, Ann Arbor, MI 48109, USA,Department of Pharmaceutical Sciences, University of Michigan, Ann Arbor, MI 48109, USA,Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109, USA,Biointerfaces Institute, University of Michigan, Ann Arbor, MI 48109, USA
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25
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Eiva MA, Omran DK, Chacon JA, Powell DJ. Systematic analysis of CD39, CD103, CD137, and PD-1 as biomarkers for naturally occurring tumor antigen-specific TILs. Eur J Immunol 2022; 52:96-108. [PMID: 34505280 PMCID: PMC8755575 DOI: 10.1002/eji.202149329] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 07/07/2021] [Accepted: 09/10/2021] [Indexed: 01/03/2023]
Abstract
The detection of tumor-specific T cells in solid tumors is integral to interrogate endogenous antitumor responses and to advance downstream therapeutic applications. Multiple biomarkers are reported to identify endogenous tumor-specific tumor-infiltrating lymphocytes (TILs), namely CD137, PD-1, CD103, and CD39; however, a direct comparison of these molecules has yet to be performed. We evaluated these biomarkers in primary human ovarian tumor samples using single-cell mass cytometry to compare their relative phenotypic profiles, and examined their response to autologous tumor cells ex vivo. PD-1+ , CD103+ , and CD39+ TILs all contain a CD137+ cell subset, while CD137+ TILs highly co-express the aforementioned markers. CD137+ TILs exhibit the highest expression of cytotoxic effector molecules compared to PD-1+ , CD103+ , or CD39+ TILs. Removal of CD137+ cells from PD-1+ , CD103+ , or CD39+ TILs diminish their IFN-γ secretion in response to autologous tumor cell stimulation, while CD137+ TILs maintain high HLA-dependent IFN-γ secretion. CD137+ TILs exhibited an exhausted phenotype but with CD28 co-expression, suggesting possible receptiveness to reinvigoration via immune checkpoint blockade. Together, our findings demonstrate that the antitumor abilities of PD-1+ , CD103+ , and CD39+ TILs are mainly derived from a subset of CD137-expressing TILs, implicating CD137 as a more selective biomarker for naturally occurring tumor-specific TILs.
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Affiliation(s)
- Monika A. Eiva
- Ovarian Cancer Research Center, Department of Obstetrics and Gynecology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA,Center for Cellular Immunotherapies, Abramson Cancer Center, University of Pennsylvania, Philadelphia, Pennsylvania, USA,Department of Pathology and Laboratory Medicine, Abramson Cancer Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Dalia K. Omran
- Ovarian Cancer Research Center, Department of Obstetrics and Gynecology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Jessica A. Chacon
- Paul L Foster School of Medicine and Woody L. Hunt School of Dental Medicine, Texas Tech University Health Sciences Center, El Paso, Texas, USA
| | - Daniel J. Powell
- Ovarian Cancer Research Center, Department of Obstetrics and Gynecology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA,Center for Cellular Immunotherapies, Abramson Cancer Center, University of Pennsylvania, Philadelphia, Pennsylvania, USA,Department of Pathology and Laboratory Medicine, Abramson Cancer Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
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26
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Moon D, Tae N, Park Y, Lee SW, Kim DH. Development of Bispecific Antibody for Cancer Immunotherapy: Focus on T Cell Engaging Antibody. Immune Netw 2022; 22:e4. [PMID: 35291652 PMCID: PMC8901699 DOI: 10.4110/in.2022.22.e4] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 02/02/2022] [Accepted: 02/03/2022] [Indexed: 12/01/2022] Open
Abstract
In the era of immunotherapeutic control of cancers, many advances in biotechnology, especially in Ab engineering, have provided multiple new candidates as therapeutic immuno-oncology modalities. Bispecific Abs (BsAbs) that recognize 2 different antigens in one molecule are promising drug candidates and have inspired an upsurge in research in both academia and the pharmaceutical industry. Among several BsAbs, T cell engaging BsAb (TCEB), a new class of therapeutic agents designed to simultaneously bind to T cells and tumor cells via tumor cell specific antigens in immunotherapy, is the most promising BsAb. Herein, we are providing an overview of the current status of the development of TCEBs. The diverse formats and characteristics of TCEBs, in addition to the functional mechanisms of BsAbs are discussed. Several aspects of a new TCEB-Blinatumomab-are reviewed, including the current clinical data, challenges of patient treatment, drawbacks regarding toxicities, and resistance of TCEB therapy. Development of the next generation of TCEBs is also discussed in addition to the comparison of TCEB with current chimeric antigen receptor-T therapy.
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Affiliation(s)
- Dain Moon
- Department of Life Sciences, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
| | - Nara Tae
- Global/Gangwon Innovative Biologics Regional Leading Research Center (GIB-RLRC), Kangwon National University, Chuncheon 24341, Korea
| | - Yunji Park
- Pohang University of Science and Technology (POSTECH) Biotech Center, POSTECH, Pohang 37673, Korea
| | - Seung-Woo Lee
- Department of Life Sciences, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
| | - Dae Hee Kim
- College of Pharmacy, Kangwon National University, Chuncheon 24341, Korea
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27
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Xie Y, Xie F, Zhang L, Zhou X, Huang J, Wang F, Jin J, Zhang L, Zeng L, Zhou F. Targeted Anti-Tumor Immunotherapy Using Tumor Infiltrating Cells. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:e2101672. [PMID: 34658167 PMCID: PMC8596143 DOI: 10.1002/advs.202101672] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 07/21/2021] [Indexed: 05/08/2023]
Abstract
In the tumor microenvironment, T cells, B cells, and many other cells play important and distinct roles in anti-tumor immunotherapy. Although the immune checkpoint blockade and adoptive cell transfer can elicit durable clinical responses, only a few patients benefit from these therapies. Increased understanding of tumor-infiltrating immune cells can provide novel therapies and drugs that induce a highly specific anti-tumor immune response to certain groups of patients. Herein, the recent research progress on tumor-infiltrating B cells and T cells, including CD8+ T cells, CD4+ T cells, and exhausted T cells and their role in anti-tumor immunity, is summarized. Moreover, several anti-tumor therapy approaches are discussed based on different immune cells and their prospects for future applications in cancer treatment.
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Affiliation(s)
- Yifan Xie
- School of MedicineZhejiang University City CollegeHangzhou310015China
- College of Life SciencesZhejiang UniversityHangzhou310058China
| | - Feng Xie
- Institutes of Biology and Medical ScienceSoochow UniversitySuzhou215123P. R. China
| | - Lei Zhang
- Department of Orthopaedic SurgeryThe Third Affiliated Hospital of Wenzhou Medical UniversityRui'an325200China
| | - Xiaoxue Zhou
- MOE Key Laboratory of Biosystems Homeostasis & Protection and Innovation Center for Cell Signaling NetworkLife Sciences InstituteZhejiang UniversityHangzhou310058China
| | - Jun Huang
- MOE Key Laboratory of Biosystems Homeostasis & Protection and Innovation Center for Cell Signaling NetworkLife Sciences InstituteZhejiang UniversityHangzhou310058China
| | - Fangwei Wang
- MOE Key Laboratory of Biosystems Homeostasis & Protection and Innovation Center for Cell Signaling NetworkLife Sciences InstituteZhejiang UniversityHangzhou310058China
| | - Jin Jin
- MOE Key Laboratory of Biosystems Homeostasis & Protection and Innovation Center for Cell Signaling NetworkLife Sciences InstituteZhejiang UniversityHangzhou310058China
| | - Long Zhang
- MOE Key Laboratory of Biosystems Homeostasis & Protection and Innovation Center for Cell Signaling NetworkLife Sciences InstituteZhejiang UniversityHangzhou310058China
| | - Linghui Zeng
- School of MedicineZhejiang University City CollegeHangzhou310015China
| | - Fangfang Zhou
- Institutes of Biology and Medical ScienceSoochow UniversitySuzhou215123P. R. China
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28
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Benedetti F, Stadlbauer K, Stadlmayr G, Rüker F, Wozniak-Knopp G. A Tetravalent Biparatopic Antibody Causes Strong HER2 Internalization and Inhibits Cellular Proliferation. Life (Basel) 2021; 11:life11111157. [PMID: 34833033 PMCID: PMC8624325 DOI: 10.3390/life11111157] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 10/18/2021] [Accepted: 10/27/2021] [Indexed: 11/16/2022] Open
Abstract
The overexpression of tyrosine kinase HER2 in numerous cancers, connected with fierce signaling and uncontrolled proliferation, makes it a suitable target for immunotherapy. The acquisition of resistance to currently used compounds and the multiplicity of signaling pathways involved prompted research into the discovery of novel binders as well as treatment options with multiple targeting and multispecific agents. Here we constructed an anti-HER2 tetravalent and biparatopic symmetrical IgG-like molecule by combining the Fab of pertuzumab with a HER2-specific Fcab (Fc fragment with antigen binding), which recognizes an epitope overlapping with trastuzumab. In the strongly HER2-positive cell line SK-BR-3, the molecule induced a rapid and efficient reduction in surface HER2 levels. A potent anti-proliferative effect, specific for the HER2-positive cell line, was observed in vitro, following the induction of apoptosis, and this could not be achieved with treatment with the mixture of pertuzumab and the parental Fcab. The inhibitory cytotoxic effect of our antibody as a single agent makes it a promising contribution to the armory of anti-cancer molecules directed against HER2-addicted cells.
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29
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Morad G, Helmink BA, Sharma P, Wargo JA. Hallmarks of response, resistance, and toxicity to immune checkpoint blockade. Cell 2021; 184:5309-5337. [PMID: 34624224 DOI: 10.1016/j.cell.2021.09.020] [Citation(s) in RCA: 597] [Impact Index Per Article: 199.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 07/21/2021] [Accepted: 09/13/2021] [Indexed: 12/16/2022]
Abstract
Unprecedented advances have been made in cancer treatment with the use of immune checkpoint blockade (ICB). However, responses are limited to a subset of patients, and immune-related adverse events (irAEs) can be problematic, requiring treatment discontinuation. Iterative insights into factors intrinsic and extrinsic to the host that impact ICB response and toxicity are critically needed. Our understanding of the impact of host-intrinsic factors (such as the host genome, epigenome, and immunity) has evolved substantially over the past decade, with greater insights on these factors and on tumor and immune co-evolution. Additionally, we are beginning to understand the impact of acute and cumulative exposures-both internal and external to the host (i.e., the exposome)-on host physiology and response to treatment. Together these represent the current day hallmarks of response, resistance, and toxicity to ICB. Opportunities built on these hallmarks are duly warranted.
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Affiliation(s)
- Golnaz Morad
- Department of Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Beth A Helmink
- Department of Surgery, Washington University School of Medicine in St. Louis, St. Louis, MO 63110, USA
| | - Padmanee Sharma
- Department of Genitourinary Medical Oncology and Immunology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Jennifer A Wargo
- Department of Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA; Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA.
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30
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Puigdelloses M, Garcia-Moure M, Labiano S, Laspidea V, Gonzalez-Huarriz M, Zalacain M, Marrodan L, Martinez-Velez N, De la Nava D, Ausejo I, Hervás-Stubbs S, Herrador G, Chen Z, Hambardzumyan D, Patino Garcia A, Jiang H, Gomez-Manzano C, Fueyo J, Gállego Pérez-Larraya J, Alonso M. CD137 and PD-L1 targeting with immunovirotherapy induces a potent and durable antitumor immune response in glioblastoma models. J Immunother Cancer 2021; 9:jitc-2021-002644. [PMID: 34281988 PMCID: PMC8291319 DOI: 10.1136/jitc-2021-002644] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/16/2021] [Indexed: 01/09/2023] Open
Abstract
Background Glioblastoma (GBM) is a devastating primary brain tumor with a highly immunosuppressive tumor microenvironment, and treatment with oncolytic viruses (OVs) has emerged as a promising strategy for these tumors. Our group constructed a new OV named Delta-24-ACT, which was based on the Delta-24-RGD platform armed with 4-1BB ligand (4-1BBL). In this study, we evaluated the antitumor effect of Delta-24-ACT alone or in combination with an immune checkpoint inhibitor (ICI) in preclinical models of glioma. Methods The in vitro effect of Delta-24-ACT was characterized through analyses of its infectivity, replication and cytotoxicity by flow cytometry, immunofluorescence (IF) and MTS assays, respectively. The antitumor effect and therapeutic mechanism were evaluated in vivo using several immunocompetent murine glioma models. The tumor microenvironment was studied by flow cytometry, immunohistochemistry and IF. Results Delta-24-ACT was able to infect and exert a cytotoxic effect on murine and human glioma cell lines. Moreover, Delta-24-ACT expressed functional 4-1BBL that was able to costimulate T lymphocytes in vitro and in vivo. Delta-24-ACT elicited a more potent antitumor effect in GBM murine models than Delta-24-RGD, as demonstrated by significant increases in median survival and the percentage of long-term survivors. Furthermore, Delta-24-ACT modulated the tumor microenvironment, which led to lymphocyte infiltration and alteration of their immune phenotype, as characterized by increases in the expression of Programmed Death 1 (PD-1) on T cells and Programmed Death-ligand 1 (PD-L1) on different myeloid cell populations. Because Delta-24-ACT did not induce an immune memory response in long-term survivors, as indicated by rechallenge experiments, we combined Delta-24-ACT with an anti-PD-L1 antibody. In GL261 tumor-bearing mice, this combination showed superior efficacy compared with either monotherapy. Specifically, this combination not only increased the median survival but also generated immune memory, which allowed long-term survival and thus tumor rejection on rechallenge. Conclusions In summary, our data demonstrated the efficacy of Delta-24-ACT combined with a PD-L1 inhibitor in murine glioma models. Moreover, the data underscore the potential to combine local immunovirotherapy with ICIs as an effective therapy for poorly infiltrated tumors.
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Affiliation(s)
- Montserrat Puigdelloses
- Health Research Institute of Navarra (IdiSNA), Pamplona, Spain.,Programs in Solid Tumors and Neuroscience, Foundation for the Applied Medical Research, Pamplona, Spain.,Department of Neurology, Clínica Universidad de Navarra, Pamplona, Spain
| | - Marc Garcia-Moure
- Health Research Institute of Navarra (IdiSNA), Pamplona, Spain.,Programs in Solid Tumors and Neuroscience, Foundation for the Applied Medical Research, Pamplona, Spain.,Department of Pediatrics, Clínica Universidad de Navarra, Pamplona, Spain
| | - Sara Labiano
- Health Research Institute of Navarra (IdiSNA), Pamplona, Spain.,Programs in Solid Tumors and Neuroscience, Foundation for the Applied Medical Research, Pamplona, Spain.,Department of Pediatrics, Clínica Universidad de Navarra, Pamplona, Spain
| | - Virginia Laspidea
- Health Research Institute of Navarra (IdiSNA), Pamplona, Spain.,Programs in Solid Tumors and Neuroscience, Foundation for the Applied Medical Research, Pamplona, Spain.,Department of Pediatrics, Clínica Universidad de Navarra, Pamplona, Spain
| | - Marisol Gonzalez-Huarriz
- Health Research Institute of Navarra (IdiSNA), Pamplona, Spain.,Programs in Solid Tumors and Neuroscience, Foundation for the Applied Medical Research, Pamplona, Spain.,Department of Pediatrics, Clínica Universidad de Navarra, Pamplona, Spain
| | - Marta Zalacain
- Health Research Institute of Navarra (IdiSNA), Pamplona, Spain.,Programs in Solid Tumors and Neuroscience, Foundation for the Applied Medical Research, Pamplona, Spain.,Department of Pediatrics, Clínica Universidad de Navarra, Pamplona, Spain
| | - Lucia Marrodan
- Health Research Institute of Navarra (IdiSNA), Pamplona, Spain.,Programs in Solid Tumors and Neuroscience, Foundation for the Applied Medical Research, Pamplona, Spain.,Department of Pediatrics, Clínica Universidad de Navarra, Pamplona, Spain
| | - Naiara Martinez-Velez
- Health Research Institute of Navarra (IdiSNA), Pamplona, Spain.,Programs in Solid Tumors and Neuroscience, Foundation for the Applied Medical Research, Pamplona, Spain.,Department of Pediatrics, Clínica Universidad de Navarra, Pamplona, Spain
| | - Daniel De la Nava
- Health Research Institute of Navarra (IdiSNA), Pamplona, Spain.,Programs in Solid Tumors and Neuroscience, Foundation for the Applied Medical Research, Pamplona, Spain.,Department of Pediatrics, Clínica Universidad de Navarra, Pamplona, Spain
| | - Iker Ausejo
- Health Research Institute of Navarra (IdiSNA), Pamplona, Spain.,Programs in Solid Tumors and Neuroscience, Foundation for the Applied Medical Research, Pamplona, Spain.,Department of Pediatrics, Clínica Universidad de Navarra, Pamplona, Spain
| | - Sandra Hervás-Stubbs
- Program in Immunology and Immunotherapy, Foundation for the Applied Medical Research, Pamplona, Spain
| | - Guillermo Herrador
- Health Research Institute of Navarra (IdiSNA), Pamplona, Spain.,Programs in Solid Tumors and Neuroscience, Foundation for the Applied Medical Research, Pamplona, Spain.,Department of Pediatrics, Clínica Universidad de Navarra, Pamplona, Spain
| | - ZhiHong Chen
- Department of Oncological Sciences, The Tisch Cancer Institut and Department of Neurosurgery, Mount Sinai Icahn School of Medicine, New York, New York, USA
| | - Dolores Hambardzumyan
- Department of Oncological Sciences, The Tisch Cancer Institut and Department of Neurosurgery, Mount Sinai Icahn School of Medicine, New York, New York, USA
| | - Ana Patino Garcia
- Health Research Institute of Navarra (IdiSNA), Pamplona, Spain.,Programs in Solid Tumors and Neuroscience, Foundation for the Applied Medical Research, Pamplona, Spain.,Department of Pediatrics, Clínica Universidad de Navarra, Pamplona, Spain
| | - Hong Jiang
- Department of NeuroOncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Candelaria Gomez-Manzano
- Department of NeuroOncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Juan Fueyo
- Department of NeuroOncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA.,Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Jaime Gállego Pérez-Larraya
- Health Research Institute of Navarra (IdiSNA), Pamplona, Spain .,Programs in Solid Tumors and Neuroscience, Foundation for the Applied Medical Research, Pamplona, Spain.,Department of Neurology, Clínica Universidad de Navarra, Pamplona, Spain
| | - Marta Alonso
- Health Research Institute of Navarra (IdiSNA), Pamplona, Spain .,Programs in Solid Tumors and Neuroscience, Foundation for the Applied Medical Research, Pamplona, Spain.,Department of Pediatrics, Clínica Universidad de Navarra, Pamplona, Spain
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31
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You G, Won J, Lee Y, Moon D, Park Y, Lee SH, Lee SW. Bispecific Antibodies: A Smart Arsenal for Cancer Immunotherapies. Vaccines (Basel) 2021; 9:724. [PMID: 34358141 PMCID: PMC8310217 DOI: 10.3390/vaccines9070724] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 06/05/2021] [Accepted: 06/28/2021] [Indexed: 12/13/2022] Open
Abstract
Following the clinical success of cancer immunotherapies such as immune checkpoint inhibitors blocking B7/CTLA-4 or PD-1/PD-L1 signaling and ongoing numerous combination therapies in the clinic,3 bispecific antibodies (BsAbs) are now emerging as a growing class of immunotherapies with the potential to improve clinical efficacy and safety further. Here, we describe four classes of BsAbs: (a) immune effector cell redirectors; (b) tumor-targeted immunomodulators; (c) dual immunomodulators; and (d) dual tumor-targeting BsAbs. This review describes each of these classes of BsAbs and presents examples of BsAbs in development. We reviewed the biological rationales and characteristics of BsAbs and summarized the current status and limitations of clinical development of BsAbs and strategies to overcome limitations. The field of BsAb-based cancer immunotherapy is growing, and more data from clinical trials are accumulating. Thus, BsAbs could be the next generation of new treatment options for cancer patients.
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Affiliation(s)
- Gihoon You
- Department of Life Sciences, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea; (G.Y.); (D.M.)
| | - Jonghwa Won
- ABL Bio Inc., Seongnam 13488, Korea; (J.W.); (Y.L.); (S.H.L.)
| | - Yangsoon Lee
- ABL Bio Inc., Seongnam 13488, Korea; (J.W.); (Y.L.); (S.H.L.)
| | - Dain Moon
- Department of Life Sciences, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea; (G.Y.); (D.M.)
| | - Yunji Park
- Biotechcenter, POSTECH, Pohang 37673, Korea;
| | - Sang Hoon Lee
- ABL Bio Inc., Seongnam 13488, Korea; (J.W.); (Y.L.); (S.H.L.)
| | - Seung-Woo Lee
- Department of Life Sciences, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea; (G.Y.); (D.M.)
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van den Bijgaart RJE, Schuurmans F, Fütterer JJ, Verheij M, Cornelissen LAM, Adema GJ. Immune Modulation Plus Tumor Ablation: Adjuvants and Antibodies to Prime and Boost Anti-Tumor Immunity In Situ. Front Immunol 2021; 12:617365. [PMID: 33936033 PMCID: PMC8079760 DOI: 10.3389/fimmu.2021.617365] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Accepted: 03/22/2021] [Indexed: 12/11/2022] Open
Abstract
In situ tumor ablation techniques, like radiotherapy, cryo- and heat-based thermal ablation are successfully applied in oncology for local destruction of tumor masses. Although diverse in technology and mechanism of inducing cell death, ablative techniques share one key feature: they generate tumor debris which remains in situ. This tumor debris functions as an unbiased source of tumor antigens available to the immune system and has led to the concept of in situ cancer vaccination. Most studies, however, report generally modest tumor-directed immune responses following local tumor ablation as stand-alone treatment. Tumors have evolved mechanisms to create an immunosuppressive tumor microenvironment (TME), parts of which may admix with the antigen depot. Provision of immune stimuli, as well as approaches that counteract the immunosuppressive TME, have shown to be key to boost ablation-induced anti-tumor immunity. Recent advances in protein engineering have yielded novel multifunctional antibody formats. These multifunctional antibodies can provide a combination of distinct effector functions or allow for delivery of immunomodulators specifically to the relevant locations, thereby mitigating potential toxic side effects. This review provides an update on immune activation strategies that have been tested to act in concert with tumor debris to achieve in situ cancer vaccination. We further provide a rationale for multifunctional antibody formats to be applied together with in situ ablation to boost anti-tumor immunity for local and systemic tumor control.
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Affiliation(s)
- Renske J E van den Bijgaart
- Radiotherapy & OncoImmunology Laboratory, Department of Radiation Oncology, Radboud University Medical Center, Nijmegen, Netherlands
| | - Fabian Schuurmans
- Radiotherapy & OncoImmunology Laboratory, Department of Radiation Oncology, Radboud University Medical Center, Nijmegen, Netherlands
| | - Jurgen J Fütterer
- Department of Medical Imaging, Radboud University Medical Center, Nijmegen, Netherlands.,Department of Robotics and Mechatronics, University of Twente, Enschede, Netherlands
| | - Marcel Verheij
- Radiotherapy & OncoImmunology Laboratory, Department of Radiation Oncology, Radboud University Medical Center, Nijmegen, Netherlands
| | - Lenneke A M Cornelissen
- Radiotherapy & OncoImmunology Laboratory, Department of Radiation Oncology, Radboud University Medical Center, Nijmegen, Netherlands
| | - Gosse J Adema
- Radiotherapy & OncoImmunology Laboratory, Department of Radiation Oncology, Radboud University Medical Center, Nijmegen, Netherlands
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Abstract
OX40 and 5T4 are molecules that play a role in T-cell expansion and cytoskeleton's disruption in cancer, respectively. US2019161555 patent describes a bispecific antibody that targets OX40/5T4 with the potential application of cancer treatment. The method of analysis of the US201916155 patent consisted of claim's analysis, as well as the chemical/biological information's analysis of the bispecific antibody. The patent includes independent claims related to bispecific antibodies that bind to OX40/5T4, DNA encoding the antibodies, a vector that harbors the DNA, a host cell that contains the vector, a pharmaceutical composition containing a pharmaceutically effective amount of the antibodies, medical use of the antibodies, use of the antibodies in the treatment or prevention of neoplastic disorders and a method of treating neoplastic disorders. Bispecific antibodies that target OX40/5T4 can activate IL-2 secretion in CD4+ T cells.
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Benedetti F, Stracke F, Stadlmayr G, Stadlbauer K, Rüker F, Wozniak-Knopp G. Bispecific antibodies with Fab-arms featuring exchanged antigen-binding constant domains. Biochem Biophys Rep 2021; 26:100959. [PMID: 33718630 PMCID: PMC7920882 DOI: 10.1016/j.bbrep.2021.100959] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 12/16/2020] [Accepted: 02/16/2021] [Indexed: 12/27/2022] Open
Abstract
Monoclonal antibodies can acquire the property of engagement of a second antigen via fusion methods or modification of their CDR loops, but also by modification of their constant domains, such as in the mAb2 format where a set of mutated amino acid residues in the CH3 domains enables a high-affinity specific interaction with the second antigen. We tested the possibility of introducing multiple binding sites for the second antigen by replacing the Fab CH1/CL domain pair with a pair of antigen-binding CH3 domains in a model scaffold with trastuzumab variable domains and VEGF-binding CH3 domains. Such bispecific molecules were produced in a “Fab-like” format and in a full-length antibody format. Novel constructs were of expected molecular composition using mass spectrometry. They were expressed at a high level in standard laboratory conditions, purified as monomers with Protein A and gel filtration and were of high thermostability. Their high-affinity binding to both target antigens was retained. Finally, the Her2/VEGF binding domain-exchanged bispecific antibody was able to mediate a potentiated surface Her2-internalization effect on the Her2-overexpressing cell line SK-BR-3 due to improved level of cross-linking with the endogenously secreted cytokine. To conclude, bispecific antibodies with Fabs featuring exchanged antigen-binding CH3 domains offer an alternative solution in positioning and valency of antigen binding sites. Fab constant domains can be efficiently exchanged for antigen-binding CH3 domains. Such mutagenesis results in bispecific antibodies with correct chain pairing. Domain-exchanged bispecific Fab- and IgG-like formats are of favorable biophysical properties. Resulting bispecific antibodies show high-affinity binding to both target antigens.
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Key Words
- Ab, antibody
- BLI, biolayer interferometry
- BSA, bovine serum albumin
- Bispecific antibody
- CDR, complementarity determining region
- DSC, differential scanning calorimetry
- Domain-exchanged antibody
- EC50, half-maximal effective concentration
- FBS, fetal bovine serum
- FITC, fluorescein isothiocyanate
- Fab constant domain exchange
- Fab, fragment antigen binding
- Fc, fragment crystallizable
- Fcab, Fc with antigen binding properties
- HPLC-SEC, high pressure liquid chromatography-size exclusion chromatography
- Her2 internalization
- IgG, immunoglobulin G
- LC-ESI-MS, liquid chromatography-electrospray ionization-mass spectrometry
- PBS, phosphate buffered saline
- PE, phycoerythrin
- PEI, polyethylenimine
- PNGase F, Peptide:N-glycosidase F
- RMSD, root mean square deviation
- TRA, trastuzumab
- Tm, melting temperature
- VEGF, vascular endothelial growth factor
- “Knobs-into-holes” heterodimerization
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Affiliation(s)
- Filippo Benedetti
- CD Laboratory for Innovative Immunotherapeutics, Institute of Molecular Biotechnology, Department of Biotechnology, University of Natural Resources and Life Sciences (BOKU), Vienna, Muthgasse 18, 1190, Vienna, Austria
| | - Florian Stracke
- CD Laboratory for Innovative Immunotherapeutics, Institute of Molecular Biotechnology, Department of Biotechnology, University of Natural Resources and Life Sciences (BOKU), Vienna, Muthgasse 18, 1190, Vienna, Austria
| | - Gerhard Stadlmayr
- CD Laboratory for Innovative Immunotherapeutics, Institute of Molecular Biotechnology, Department of Biotechnology, University of Natural Resources and Life Sciences (BOKU), Vienna, Muthgasse 18, 1190, Vienna, Austria
| | - Katharina Stadlbauer
- CD Laboratory for Innovative Immunotherapeutics, Institute of Molecular Biotechnology, Department of Biotechnology, University of Natural Resources and Life Sciences (BOKU), Vienna, Muthgasse 18, 1190, Vienna, Austria
| | - Florian Rüker
- CD Laboratory for Innovative Immunotherapeutics, Institute of Molecular Biotechnology, Department of Biotechnology, University of Natural Resources and Life Sciences (BOKU), Vienna, Muthgasse 18, 1190, Vienna, Austria
| | - Gordana Wozniak-Knopp
- CD Laboratory for Innovative Immunotherapeutics, Institute of Molecular Biotechnology, Department of Biotechnology, University of Natural Resources and Life Sciences (BOKU), Vienna, Muthgasse 18, 1190, Vienna, Austria
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Wong HY, Schwarz H. CD137 / CD137 ligand signalling regulates the immune balance: A potential target for novel immunotherapy of autoimmune diseases. J Autoimmun 2020; 112:102499. [PMID: 32505443 DOI: 10.1016/j.jaut.2020.102499] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 05/24/2020] [Accepted: 05/25/2020] [Indexed: 02/08/2023]
Abstract
CD137 (TNFRSF9, 4-1BB) is a potent co-stimulatory molecule of the tumour necrosis factor receptor superfamily (TNFRSF) that is expressed by activated T cells. CD137/CD137 ligand (CD137L) signalling primarily induces a potent cell-mediated immune response, while signalling of cell surface-expressed CD137L into antigen presenting cells enhances their activation, differentiation and migratory capacity. Studies have shown that bidirectional CD137/CD137L signalling plays an important role in the pathogenesis of autoimmune diseases. This review discusses the mechanisms how CD137/CD137L signalling contributes to immune deviation of helper T cell pathways in various murine models, and the potential of developing immunotherapies targeting CD137/CD137L signalling for the treatment of autoimmune diseases.
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Affiliation(s)
- Hiu Yi Wong
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, 117593, Singapore; Immunology Programme, Life Sciences Institute, National University of Singapore, 117456, Singapore
| | - Herbert Schwarz
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, 117593, Singapore; Immunology Programme, Life Sciences Institute, National University of Singapore, 117456, Singapore.
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