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Weisbrod LJ, Thiraviyam A, Vengoji R, Shonka N, Jain M, Ho W, Batra SK, Salehi A. Diffuse intrinsic pontine glioma (DIPG): A review of current and emerging treatment strategies. Cancer Lett 2024; 590:216876. [PMID: 38609002 DOI: 10.1016/j.canlet.2024.216876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 04/04/2024] [Accepted: 04/05/2024] [Indexed: 04/14/2024]
Abstract
Diffuse intrinsic pontine glioma (DIPG) is a childhood malignancy of the brainstem with a dismal prognosis. Despite recent advances in its understanding at the molecular level, the prognosis of DIPG has remained unchanged. This article aims to review the current understanding of the genetic pathophysiology of DIPG and to highlight promising therapeutic targets. Various DIPG treatment strategies have been investigated in pre-clinical studies, several of which have shown promise and have been subsequently translated into ongoing clinical trials. Ultimately, a multifaceted therapeutic approach that targets cell-intrinsic alterations, the micro-environment, and augments the immune system will likely be necessary to eradicate DIPG.
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Affiliation(s)
- Luke J Weisbrod
- Department of Neurosurgery, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA
| | - Anand Thiraviyam
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA
| | - Raghupathy Vengoji
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA
| | - Nicole Shonka
- Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA; Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA
| | - Maneesh Jain
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA; Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA; Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA
| | - Winson Ho
- Department of Neurosurgery, University of California San Francisco, San Francisco, CA, 94143, USA
| | - Surinder K Batra
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA; Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA; Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA
| | - Afshin Salehi
- Department of Neurosurgery, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA; Division of Pediatric Neurosurgery, Children's Nebraska, Omaha, NE, 68114, USA.
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Bulaon CJI, Khorattanakulchai N, Rattanapisit K, Sun H, Pisuttinusart N, Strasser R, Tanaka S, Soon-Shiong P, Phoolcharoen W. Antitumor effect of plant-produced anti-CTLA-4 monoclonal antibody in a murine model of colon cancer. FRONTIERS IN PLANT SCIENCE 2023; 14:1149455. [PMID: 37711295 PMCID: PMC10497774 DOI: 10.3389/fpls.2023.1149455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/22/2023] [Accepted: 08/16/2023] [Indexed: 09/16/2023]
Abstract
Cytotoxic T lymphocyte-associated protein 4 (CTLA-4) is an immune checkpoint regulator exclusively expressed on T cells that obstructs the cell's effector functions. Ipilimumab (Yervoy®), a CTLA-4 blocking antibody, emerged as a notable breakthrough in modern cancer treatment, showing upfront clinical benefits in multiple carcinomas. However, the exhilarating cost of checkpoint blockade therapy is discouraging and even utmost prominent in developing countries. Thereby, affordability of cancer care has become a point of emphasis in drug development pipelines. Plant expression system blossomed as a cutting-edge platform for rapid, facile to scale-up, and economical production of recombinant therapeutics. Here, we describe the production of an anti-CTLA-4 2C8 antibody in Nicotiana benthamiana. ELISA and bio-layer interferometry were used to analyze antigen binding and binding kinetics. Anticancer responses in vivo were evaluated using knocked-in mice implanted with syngeneic colon tumor. At 4 days post-infiltration, the antibody was transiently expressed in plants with yields of up to 39.65 ± 8.42 μg/g fresh weight. Plant-produced 2C8 binds to both human and murine CTLA-4, and the plant-produced IgG1 also binds to human FcγRIIIa (V158). In addition, the plant-produced 2C8 monoclonal antibody is as effective as Yervoy® in inhibiting tumor growth in vivo. In conclusion, our study underlines the applicability of plant platform to produce functional therapeutic antibodies with promising potential in cancer immunotherapy.
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Affiliation(s)
- Christine Joy I. Bulaon
- Center of Excellence in Plant-Produced Pharmaceuticals, Chulalongkorn University, Bangkok, Thailand
- Department of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, Thailand
- Graduate Program of Pharmaceutical Sciences and Technology, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, Thailand
| | | | | | | | - Nuttapat Pisuttinusart
- Center of Excellence in Plant-Produced Pharmaceuticals, Chulalongkorn University, Bangkok, Thailand
- Department of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, Thailand
- Graduate Program of Pharmaceutical Sciences and Technology, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, Thailand
| | - Richard Strasser
- Department of Applied Genetics and Cell Biology, University of Natural Resources and Life Sciences, Vienna, Austria
| | - Shiho Tanaka
- ImmunityBio, Inc., Culver City, CA, United States
| | | | - Waranyoo Phoolcharoen
- Center of Excellence in Plant-Produced Pharmaceuticals, Chulalongkorn University, Bangkok, Thailand
- Department of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, Thailand
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D’Alise AM, Nocchi L, Garzia I, Seclì L, Infante L, Troise F, Cotugno G, Allocca S, Romano G, Lahm A, Leoni G, Sasso E, Scarselli E, Nicosia A. Adenovirus Encoded Adjuvant (AdEnA) anti-CTLA-4, a novel strategy to improve Adenovirus based vaccines against infectious diseases and cancer. Front Immunol 2023; 14:1156714. [PMID: 37180141 PMCID: PMC10169702 DOI: 10.3389/fimmu.2023.1156714] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 04/13/2023] [Indexed: 05/15/2023] Open
Abstract
Introduction Virus vectored genetic vaccines (Vvgv) represent a promising approach for eliciting immune protection against infectious diseases and cancer. However, at variance with classical vaccines to date, no adjuvant has been combined with clinically approved genetic vaccines, possibly due to the detrimental effect of the adjuvant-induced innate response on the expression driven by the genetic vaccine vector. We reasoned that a potential novel approach to develop adjuvants for genetic vaccines would be to "synchronize" in time and space the activity of the adjuvant with that of the vaccine. Methods To this aim, we generated an Adenovirus vector encoding a murine anti-CTLA-4 monoclonal antibody (Ad-9D9) as a genetic adjuvant for Adenovirus based vaccines. Results The co-delivery of Ad-9D9 with an Adeno-based COVID-19 vaccine encoding the Spike protein resulted in stronger cellular and humoral immune responses. In contrast, only a modest adjuvant effect was achieved when combining the vaccine with the same anti-CTLA-4 in its proteinaceous form. Importantly, the administration of the adjuvant vector at different sites of the vaccine vector abrogates the immunostimulatory effect. We showed that the adjuvant activity of Ad-α-CTLA-4 is independent from the vaccine antigen as it improved the immune response and efficacy of an Adenovirus based polyepitope vaccine encoding tumor neoantigens. Discussion Our study demonstrated that the combination of Adenovirus Encoded Adjuvant (AdEnA) with an Adeno-encoded antigen vaccine enhances immune responses to viral and tumor antigens, representing a potent approach to develop more effective genetic vaccines.
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Affiliation(s)
| | | | | | | | - Luigia Infante
- Department of Biology, University of Rome “Tor Vergata”, Rome, Italy
| | | | | | | | | | | | | | - Emanuele Sasso
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Naples, Italy
- CEINGE-Advanced Biotechnologies s.c. a.r.l., Naples, Italy
| | | | - Alfredo Nicosia
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Naples, Italy
- CEINGE-Advanced Biotechnologies s.c. a.r.l., Naples, Italy
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4
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Aghbash PS, Hemmat N, Fathi H, Baghi HB. Monoclonal antibodies in cervical malignancy-related HPV. Front Oncol 2022; 12:904790. [PMID: 36276117 PMCID: PMC9582116 DOI: 10.3389/fonc.2022.904790] [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: 03/25/2022] [Accepted: 09/20/2022] [Indexed: 11/20/2022] Open
Abstract
Despite many efforts to treat HPV infection, cervical cancer survival is still poor for several reasons, including resistance to chemotherapy and relapse. Numerous treatments such as surgery, radiation therapy, immune cell-based therapies, siRNA combined with various drugs, and immunotherapy are being studied and performed to provide the best treatment. Depending on the stage and size of the tumor, methods such as radical hysterectomy, pelvic lymphadenectomy, or chemotherapy can be utilized to treat cervical cancer. While accepted, these treatments lead to interruptions in cellular pathways and immune system homeostasis. In addition to a low survival rate, cervical neoplasm incidence has been rising significantly. However, new strategies have been proposed to increase patient survival while reducing the toxicity of chemotherapy, including targeted therapy and monoclonal antibodies. In this article, we discuss the types and potential therapeutic roles of monoclonal antibodies in cervical cancer.
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Affiliation(s)
- Parisa Shiri Aghbash
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Virology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Nima Hemmat
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Drug Applied Research Centre, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hamidreza Fathi
- Department of Virology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
- Network of Immunity in Infection, Malignancy and Autoimmunity (NIIMA), Universal Scientific Education and Research Network (USERN), Tabriz, Iran
| | - Hossein Bannazadeh Baghi
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Virology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
- *Correspondence: Hossein Bannazadeh Baghi, ;
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de Castria TB, Khalil DN, Harding JJ, O'Reilly EM, Abou-Alfa GK. Tremelimumab and durvalumab in the treatment of unresectable, advanced hepatocellular carcinoma. Future Oncol 2022; 18:3769-3782. [PMID: 36399155 DOI: 10.2217/fon-2022-0652] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Liver cancer is the third most common cause of cancer-related mortality worldwide, with over 780,000 deaths in 2018. About 90% of liver cancer cases are hepatocellular carcinoma (HCC), a prototype of inflammation-driven cancer, leading to a robust rationale for the exploration of immune therapy. Previously approved agents for first-line therapy, such as sorafenib, lenvatinib and bevacizumab combined with atezolizumab, have focused on angiogenesis. HIMALAYA was the first trial to demonstrate the benefit of dual immune checkpoint inhibitors, representing a new treatment option in this scenario.
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Affiliation(s)
| | - Danny N Khalil
- Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA.,Weill Medical College at Cornell University, New York, NY 10021, USA
| | - James J Harding
- Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA.,Weill Medical College at Cornell University, New York, NY 10021, USA
| | - Eileen M O'Reilly
- Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA.,Weill Medical College at Cornell University, New York, NY 10021, USA
| | - Ghassan K Abou-Alfa
- Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA.,Weill Medical College at Cornell University, New York, NY 10021, USA
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6
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O'Malley DM, Neffa M, Monk BJ, Melkadze T, Huang M, Kryzhanivska A, Bulat I, Meniawy TM, Bagameri A, Wang EW, Doger de Speville Uribe B, Hegg R, Ortuzar Feliu W, Ancukiewicz M, Lugowska I. Dual PD-1 and CTLA-4 Checkpoint Blockade Using Balstilimab and Zalifrelimab Combination as Second-Line Treatment for Advanced Cervical Cancer: An Open-Label Phase II Study. J Clin Oncol 2022; 40:762-771. [PMID: 34932394 PMCID: PMC8887945 DOI: 10.1200/jco.21.02067] [Citation(s) in RCA: 59] [Impact Index Per Article: 29.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
PURPOSE Balstilimab (antiprogrammed death-1) and zalifrelimab (anticytotoxic T-lymphocyte-associated antigen-4) are two new checkpoint inhibitors emerging as promising investigational agents for the treatment of advanced cervical cancer. This phase II trial (ClinicalTrials.gov identifier: NCT03495882) evaluated the combination of balstilimab plus zalifrelimab in patients with recurrent and/or metastatic cervical cancer who relapsed after prior platinum-based therapy. PATIENTS AND METHODS Patients were intravenously dosed with balstilimab 3 mg/kg once every 2 weeks and zalifrelimab 1 mg/kg once every 6 weeks, for up to 24 months. The primary end point was objective response rate (ORR, RECIST version 1.1, assessed by independent central review). Secondary end points included duration of response, safety and tolerability, and survival. RESULTS In total, 155 women (median age, 50 years [range, 24-76 years]) were enrolled and treated with balstilimab plus zalifrelimab; 125 patients had measurable disease at baseline and one prior line of platinum-based therapy in the advanced setting, and these patients constituted the efficacy-evaluable population. The median follow-up was 21 months. The confirmed ORR was 25.6% (95% CI, 18.8 to 33.9), including 10 complete responders and 22 partial responders, with median duration of response not reached (86.5%, 75.5%, and 64.2% at 6, 9, and 12 months, respectively). The ORRs were 32.8% and 9.1% in patients with programmed death ligand-1-positive and programmed death ligand-1-negative tumors, respectively. For patients with squamous cell carcinoma, the ORR was 32.6%. The overall disease control rate was 52% (95% CI, 43.3 to 60.6). Hypothyroidism (14.2%) and hyperthyroidism (7.1%) were the most common immune-mediated adverse events. CONCLUSION Promising and durable clinical activity, with favorable tolerability, was seen in this largest trial to date evaluating dual programmed death-1/cytotoxic T-lymphocyte-associated antigen-4 blockade in patients with recurrent and/or metastatic cervical cancer. Further investigation of the balstilimab and zalifrelimab combination in this setting is continuing.
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Affiliation(s)
- David M. O'Malley
- Division of Gynecologic Oncology, The Ohio State University/James Comprehensive Cancer Center, Columbus, OH,David M. O'Malley, MD, The Ohio State University and James Comprehensive Cancer Center, 320 W 10th St, Columbus, OH 43210; e-mail: David.O'
| | - Maryna Neffa
- CI of Healthcare Regional Clinical Specialized Dispensary of the Radiation Protection, Kharvik, Ukraine
| | - Bradley J. Monk
- Division of Gynecologic Oncology, Arizona Oncology (US Oncology Network), University of Arizona, Creighton University, Phoenix, AZ
| | - Tamar Melkadze
- Research Institute of Clinical Medicine, Tbilisi, Georgia
| | - Marilyn Huang
- Division of Gynecologic Oncology, University of Miami School of Medicine, Sylvester Comprehensive Cancer Center, Miami, FL
| | - Anna Kryzhanivska
- Regional Clinical Oncology Center, Ivano-Frankivsk National Medical University, Ivano-Frankivsk, Ukraine
| | - Iurie Bulat
- ARENSIA Exploratory Medicine Unit, Institute of Oncology, Chisinau, Moldova
| | | | | | - Edward W. Wang
- Medical Oncology and Therapeutic Research, City of Hope Comprehensive Cancer Center, Duarte, CA
| | | | - Roberto Hegg
- Clínica de Pesquisa e Centro de Estudos em Oncologia Ginecológica e Mamária, Sao Paulo, Brazil
| | | | | | - Iwona Lugowska
- Maria Sklodowska-Curie National Research Unit of Oncology, Warsaw, Poland
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7
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Bose CK. Balstilimab and other immunotherapy for recurrent and metastatic cervical cancer. Med Oncol 2022; 39:47. [PMID: 35092506 DOI: 10.1007/s12032-022-01646-7] [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] [Received: 10/26/2021] [Accepted: 01/03/2022] [Indexed: 12/01/2022]
Abstract
Recurrent and metastatic cervical cancer is generally treated by cisplatin, paclitaxel, and bevacizumab with limited benefit this constituting an unmet need. Immune checkpoint inhibitors, namely the inhibitors of programmed death 1 and programmed death ligand 1 have been proved to be efficacious in the treatment of patients with advanced cervical cancer. Recently, a PD-1 inhibitor, pembrolizumab was approved for such cancer. However, there is much scope of improvement of current outcome. Dual blockade of cytotoxic T lymphocyte-associated protein 4 and PD-1 is an attractive therapeutic approach. It is used in other cancers and is currently proposed for cancer cervix also. Search is on for single or combined regimen showing efficacy in multiple pathological conditions of cancer cervix irrespective presence of PD-L1 in malignant tissue. An effort to meet such unmet need has culminated in inventing new immune checkpoint inhibitors namely PD-1 inhibitor, AGEN2034 (Balstilimab) and CTLA-4 inhibitor, AGEN1884 (Zalifrelimab).They have shown meaningful and durable activity as single-agent therapy in previously treated patients with persistent R/M CC in a large phase II trial (NCT03104699) in PD-L1 + and PD-L1- tumour. Responses were found both in squamous cell carcinoma & adenocarcinoma cell types. Balstilimab plus zalifrelimab combination (NCT03495882) produced improved clinical benefit over monotherapy as evidenced by higher relative response rates and longer response duration, as well as a manageable safety profile. Interesting development of this combination and other immunotherapies in R/M CC are discussed in this ensuing review.
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Affiliation(s)
- Chinmoy K Bose
- Netaji Subhash Chandra Bose Cancer Research Institute, Kolkata, West Bengal, India.
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8
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Korman AJ, Garrett-Thomson SC, Lonberg N. The foundations of immune checkpoint blockade and the ipilimumab approval decennial. Nat Rev Drug Discov 2021; 21:509-528. [PMID: 34937915 DOI: 10.1038/s41573-021-00345-8] [Citation(s) in RCA: 193] [Impact Index Per Article: 64.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/28/2021] [Indexed: 12/11/2022]
Abstract
Cancer immunity, and the potential for cancer immunotherapy, have been topics of scientific discussion and experimentation for over a hundred years. Several successful cancer immunotherapies - such as IL-2 and interferon-α (IFNα) - have appeared over the past 30 years. However, it is only in the past decade that immunotherapy has made a broad impact on patient survival in multiple high-incidence cancer indications. The emergence of immunotherapy as a new pillar of cancer treatment (adding to surgery, radiation, chemotherapy and targeted therapies) is due to the success of immune checkpoint blockade (ICB) drugs, the first of which - ipilimumab - was approved in 2011. ICB drugs block receptors and ligands involved in pathways that attenuate T cell activation - such as cytotoxic T lymphocyte antigen 4 (CTLA4), programmed cell death 1 (PD1) and its ligand, PDL1 - and prevent, or reverse, acquired peripheral tolerance to tumour antigens. In this Review we mark the tenth anniversary of the approval of ipilimumab and discuss the foundational scientific history of ICB, together with the history of the discovery, development and elucidation of the mechanism of action of the first generation of drugs targeting the CTLA4 and PD1 pathways.
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9
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O'Malley DM, Randall LM, Jackson CG, Coleman RL, Hays JL, Moore KN, Naumann RW, Rocconi RP, Slomovitz BM, Tewari KS, Ancukiewicz M, Feliu WO, Monk BJ. RaPiDS (GOG-3028): randomized Phase II study of balstilimab alone or in combination with zalifrelimab in cervical cancer. Future Oncol 2021; 17:3433-3443. [PMID: 34409858 DOI: 10.2217/fon-2021-0529] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Balstilimab (anti-programmed death 1) and zalifrelimab (anti-CTLA-4) are two new checkpoint inhibitors that have emerged as promising investigational agents for the treatment of cervical cancer, particularly in the setting of previously-treated, recurrent/metastatic disease. Here we describe the rationale and design of RaPiDS (NCT03894215), a two-arm Phase II study evaluating the safety, tolerability and efficacy of balstilimab administered alone or in combination with zalifrelimab in patients with advanced cervical cancer who progressed after first-line, platinum-based chemotherapy. Patients will be randomized in a 1:1 ratio. The primary end point is objective response rate, and key secondary objectives include safety, duration of response, progression-free survival, overall survival and quality of life outcomes.
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Affiliation(s)
- David M O'Malley
- Division of Gynecologic Oncology, The Ohio State University/James Comprehensive Cancer Center, Columbus, OH 43210, USA
| | - Leslie M Randall
- Division of Gynecologic Oncology, Massey Cancer Center, Virginia Commonwealth University, Richmond, VA 23298, USA
| | - Camille Gunderson Jackson
- Department of Obstetrics & Gynecology, Stephenson Oklahoma Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
| | - Robert L Coleman
- Department of Gynecologic Oncology & Reproductive Medicine, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - John L Hays
- Division of Gynecologic Oncology, The Ohio State University/James Comprehensive Cancer Center, Columbus, OH 43210, USA
| | - Kathleen N Moore
- Department of Obstetrics & Gynecology, Stephenson Oklahoma Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
| | - R Wendel Naumann
- Department of Gynecologic Oncology, Levine Cancer Institute, Charlotte, NC 28204, USA
| | - Rodney P Rocconi
- Department of Obstetrics & Gynecology, University of South Alabama Mitchell Cancer Institute, Mobile, AL 36604, USA
| | - Brian M Slomovitz
- Division of Gynecologic Oncology, Sylvester Comprehensive Cancer Center, University of Miami, Miami, FL 33136, USA
| | - Krishnansu S Tewari
- Division of Gynecologic Oncology, University of California, Irvine Medical Center, Orange, CA 92868, USA
| | | | | | - Bradley J Monk
- Division of Gynecologic Oncology, Arizona Oncology (US Oncology Network), University of Arizona & Creighton University, Phoenix, AZ 85016, USA
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10
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Liu R, Oldham RJ, Teal E, Beers SA, Cragg MS. Fc-Engineering for Modulated Effector Functions-Improving Antibodies for Cancer Treatment. Antibodies (Basel) 2020; 9:E64. [PMID: 33212886 PMCID: PMC7709126 DOI: 10.3390/antib9040064] [Citation(s) in RCA: 90] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 09/28/2020] [Accepted: 11/04/2020] [Indexed: 12/30/2022] Open
Abstract
The majority of monoclonal antibody (mAb) therapeutics possess the ability to engage innate immune effectors through interactions mediated by their fragment crystallizable (Fc) domain. By delivering Fc-Fc gamma receptor (FcγR) and Fc-C1q interactions, mAb are able to link exquisite specificity to powerful cellular and complement-mediated effector functions. Fc interactions can also facilitate enhanced target clustering to evoke potent receptor signaling. These observations have driven decades-long research to delineate the properties within the Fc that elicit these various activities, identifying key amino acid residues and elucidating the important role of glycosylation. They have also fostered a growing interest in Fc-engineering whereby this knowledge is exploited to modulate Fc effector function to suit specific mechanisms of action and therapeutic purposes. In this review, we document the insight that has been generated through the study of the Fc domain; revealing the underpinning structure-function relationships and how the Fc has been engineered to produce an increasing number of antibodies that are appearing in the clinic with augmented abilities to treat cancer.
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Affiliation(s)
- Rena Liu
- GlaxoSmithKline Research and Development, Stevenage SG1 2NY, UK;
| | - Robert J. Oldham
- Antibody and Vaccine Group, Centre for Cancer Immunology, Cancer Sciences, Faculty of Medicine, University of Southampton, Southampton SO171BJ, UK; (R.J.O.); (E.T.); (M.S.C.)
- Cancer Research UK Centre, Cancer Sciences, Faculty of Medicine, University of Southampton, Southampton SO171BJ, UK
| | - Emma Teal
- Antibody and Vaccine Group, Centre for Cancer Immunology, Cancer Sciences, Faculty of Medicine, University of Southampton, Southampton SO171BJ, UK; (R.J.O.); (E.T.); (M.S.C.)
- Cancer Research UK Centre, Cancer Sciences, Faculty of Medicine, University of Southampton, Southampton SO171BJ, UK
| | - Stephen A. Beers
- Antibody and Vaccine Group, Centre for Cancer Immunology, Cancer Sciences, Faculty of Medicine, University of Southampton, Southampton SO171BJ, UK; (R.J.O.); (E.T.); (M.S.C.)
- Cancer Research UK Centre, Cancer Sciences, Faculty of Medicine, University of Southampton, Southampton SO171BJ, UK
| | - Mark S. Cragg
- Antibody and Vaccine Group, Centre for Cancer Immunology, Cancer Sciences, Faculty of Medicine, University of Southampton, Southampton SO171BJ, UK; (R.J.O.); (E.T.); (M.S.C.)
- Cancer Research UK Centre, Cancer Sciences, Faculty of Medicine, University of Southampton, Southampton SO171BJ, UK
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11
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Isolation of Two Novel Human Anti-CTLA-4 mAbs with Intriguing Biological Properties on Tumor and NK Cells. Cancers (Basel) 2020; 12:cancers12082204. [PMID: 32781690 PMCID: PMC7464132 DOI: 10.3390/cancers12082204] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 08/01/2020] [Accepted: 08/04/2020] [Indexed: 12/15/2022] Open
Abstract
The cytotoxic T lymphocyte-antigen 4 (CTLA-4) has been considered an IC exclusively expressed on T cells, where it counteracts the co-stimulatory CD28 receptor, by competing for its binding to CD-80 and CD-86. We recently found that it is expressed also on tumor and NK cells, suggesting other possible unknown roles of CTLA-4. To shed light on these novel aspects of CTLA-4, we used Ipilimumab, the first FDA approved human antibody targeting CTLA-4, in parallel studies with two novel human mAbs we isolated by using an efficient phage display selection strategy on live activated lymphocytes and purified mouse and human CTLA-4. The selection for cross-reactive mAbs was guaranteed by a high throughput sequencing to identify the sequences commonly enriched by two parallel pannings on human and mouse CTLA-4. Two isolated antibodies were found to bind with high affinity to both human and mouse CTLA-4 and lymphocytes, showing nanomolar or sub-nanomolar Kd values. They were able to kill Treg cells by ADCC, and to activate both human and mouse PBMCs, by strongly increasing cytokines secretion. Interestingly, they activated NK cells, exhibited cytotoxicity against cancer cells by inducing ADCC and inhibited tumor cell growth by affecting CTLA-4 downstream pathways in a similar fashion to CD-80 and CD-86 ligands and differently from Ipilimumab. Moreover, the novel mAbs showed a reduced ability to interfere in the binding of CD-80 ligands to CTLA-4 on T cells with respect to Ipilimumab, suggesting that they could allow for anti-tumor effects without the irAEs associated with the potent antagonistic activity of Ipilimumab.
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12
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Passariello M, Camorani S, Vetrei C, Ricci S, Cerchia L, De Lorenzo C. Ipilimumab and Its Derived EGFR Aptamer-Based Conjugate Induce Efficient NK Cell Activation against Cancer Cells. Cancers (Basel) 2020; 12:E331. [PMID: 32024070 PMCID: PMC7072174 DOI: 10.3390/cancers12020331] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 01/21/2020] [Accepted: 01/30/2020] [Indexed: 01/05/2023] Open
Abstract
The immune checkpoint CTLA-4 (cytotoxic T-lymphocyte-antigen 4), which inhibits the co-stimulatory CD28 signal on T cells, has been recently found expressed on other cell populations, such as tumor and natural killer (NK) cells. We tested for the first time the effects of ipilimumab, the human anti-CTLA4 mAb in clinical use, on these cells and found that it inhibits the growth of tumor cells expressing CTLA-4 also in the absence of lymphocytes, and efficiently activates NK cells, thus suggesting an important unexplored role of NK cells in ipilimumab-modulated immune responses. Interestingly, the epidermal growth factor receptor (EGFR) has been shown to play a key role in tumor cell escape from immune surveillance, and in cytotoxic T lymphocyte inhibition. Thus, we tested combinatorial treatments of ipilimumab with an anti-EGFR aptamer endowed with anti-tumor activity, and constructed for the first time a novel bispecific immunoconjugate, made up of these two compounds. The novel immunoconjugate binds to the target cells, induces the activation of lymphocytes, including NK cells, and inhibits the growth of tumor target cells more efficiently than the parental compounds, by strongly enhancing the cytotoxic activity of both human peripheral blood mononuclear cells and NK cells against tumor cells.
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Affiliation(s)
- Margherita Passariello
- Department of Molecular Medicine and Medical Biotechnology, University of Naples “Federico II”, Via Pansini 5, 80131 Naples, Italy; (M.P.); (C.V.); (S.R.)
- Ceinge – Biotecnologie Avanzate s.c. a.r.l., via Gaetano Salvatore 486, 80145 Naples, Italy
| | - Simona Camorani
- Institute of Experimental Endocrinology and Oncology “Gaetano Salvatore” (IEOS), CNR, Via S. Pansini 5, 80131 Naples, Italy
| | - Cinzia Vetrei
- Department of Molecular Medicine and Medical Biotechnology, University of Naples “Federico II”, Via Pansini 5, 80131 Naples, Italy; (M.P.); (C.V.); (S.R.)
- Ceinge – Biotecnologie Avanzate s.c. a.r.l., via Gaetano Salvatore 486, 80145 Naples, Italy
| | - Stefania Ricci
- Department of Molecular Medicine and Medical Biotechnology, University of Naples “Federico II”, Via Pansini 5, 80131 Naples, Italy; (M.P.); (C.V.); (S.R.)
- Ceinge – Biotecnologie Avanzate s.c. a.r.l., via Gaetano Salvatore 486, 80145 Naples, Italy
| | - Laura Cerchia
- Institute of Experimental Endocrinology and Oncology “Gaetano Salvatore” (IEOS), CNR, Via S. Pansini 5, 80131 Naples, Italy
| | - Claudia De Lorenzo
- Department of Molecular Medicine and Medical Biotechnology, University of Naples “Federico II”, Via Pansini 5, 80131 Naples, Italy; (M.P.); (C.V.); (S.R.)
- Ceinge – Biotecnologie Avanzate s.c. a.r.l., via Gaetano Salvatore 486, 80145 Naples, Italy
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13
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Florou V, Rosenberg AE, Wieder E, Komanduri KV, Kolonias D, Uduman M, Castle JC, Buell JS, Trent JC, Wilky BA. Angiosarcoma patients treated with immune checkpoint inhibitors: a case series of seven patients from a single institution. J Immunother Cancer 2019; 7:213. [PMID: 31395100 PMCID: PMC6686562 DOI: 10.1186/s40425-019-0689-7] [Citation(s) in RCA: 103] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Accepted: 07/23/2019] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND Angiosarcoma is an uncommon endothelial malignancy and a highly aggressive soft tissue sarcoma. Due to its infiltrative nature, successful management of localized angiosarcoma is often challenging. Systemic chemotherapy is used in the metastatic setting and occasionally in patients with high-risk localized disease in neoadjuvant or adjuvant settings. However, responses tend to be short-lived and most patients succumb to metastatic disease. Novel therapies are needed for patients with angiosarcomas. METHODS We performed a retrospective analysis of patients with locally advanced or metastatic angiosarcoma, who were treated with checkpoint inhibitors at our institution. We collected their clinical information and outcome measurements. In one patient with achieved complete response, we analyzed circulating and infiltrating T cells within peripheral blood and tumor tissue. RESULTS We have treated seven angiosarcoma (AS) patients with checkpoint inhibitors either in the context of clinical trials or off label [Pembrolizumab + Axitinib (NCT02636725; n = 1), AGEN1884, a CTLA-4 inhibitor (NCT02694822; n = 2), Pembrolizumab (n = 4)]. Five patients had cutaneous angiosarcoma, one primary breast angiosarcoma and one radiation-associated breast angiosarcoma. At 12 weeks, 5/7 patients (71%) had partial response of their lesions either on imaging and/or clinical exam and two (29%) had progressive disease. 6/7 patients are alive to date and, thus far, 3/7 patients (43%) have progressed (median 3.4 months)- one achieved partial response after pembrolizumab was switched to ongoing Nivolumab/Ipilimumab, one died of progressive disease at 31 weeks (primary breast angiosarcoma) and one was placed on pazopanib. One patient had a complete response (CR) following extended treatment with monotherapy AGEN1884. No patient experienced any ≥ grade 2 toxicities. CONCLUSIONS This case series underscores the value of targeted immunotherapy in treating angiosarcoma. It also identifies genetic heterogeneity of cutaneous angiosarcomas and discusses specific genetic findings that may explain reported benefits from immunotherapy.
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Affiliation(s)
- Vaia Florou
- Department of Medicine, Division of Oncology, Sylvester Comprehensive Cancer Center at University of Miami Miller School of Medicine, 1475 NW 12th Avenue, Miami, FL 33136 USA
| | - Andrew E. Rosenberg
- Department of Medicine, Division of Oncology, Sylvester Comprehensive Cancer Center at University of Miami Miller School of Medicine, 1475 NW 12th Avenue, Miami, FL 33136 USA
| | - Eric Wieder
- Department of Medicine, Division of Oncology, Sylvester Comprehensive Cancer Center at University of Miami Miller School of Medicine, 1475 NW 12th Avenue, Miami, FL 33136 USA
| | - Krishna V. Komanduri
- Department of Medicine, Division of Oncology, Sylvester Comprehensive Cancer Center at University of Miami Miller School of Medicine, 1475 NW 12th Avenue, Miami, FL 33136 USA
| | - Despina Kolonias
- Department of Medicine, Division of Oncology, Sylvester Comprehensive Cancer Center at University of Miami Miller School of Medicine, 1475 NW 12th Avenue, Miami, FL 33136 USA
| | | | | | | | - Jonathan C. Trent
- Department of Medicine, Division of Oncology, Sylvester Comprehensive Cancer Center at University of Miami Miller School of Medicine, 1475 NW 12th Avenue, Miami, FL 33136 USA
| | - Breelyn A. Wilky
- Department of Medicine, Division of Oncology, Sylvester Comprehensive Cancer Center at University of Miami Miller School of Medicine, 1475 NW 12th Avenue, Miami, FL 33136 USA
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14
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Duenas-Gonzalez A, Gonzalez-Fierro A. Pharmacodynamics of current and emerging treatments for cervical cancer. Expert Opin Drug Metab Toxicol 2019; 15:671-682. [DOI: 10.1080/17425255.2019.1648431] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Alfonso Duenas-Gonzalez
- Unit of Biomedical Research on Cancer, Instituto de Investigaciones Biomédicas UNAM/Instituto Nacional de Cancerología, Mexico City, Mexico
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15
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Sanseviero E, O'Brien EM, Karras JR, Shabaneh TB, Aksoy BA, Xu W, Zheng C, Yin X, Xu X, Karakousis GC, Amaravadi RK, Nam B, Turk MJ, Hammerbacher J, Rubinstein MP, Schuchter LM, Mitchell TC, Liu Q, Stone EL. Anti-CTLA-4 Activates Intratumoral NK Cells and Combined with IL15/IL15Rα Complexes Enhances Tumor Control. Cancer Immunol Res 2019; 7:1371-1380. [PMID: 31239316 DOI: 10.1158/2326-6066.cir-18-0386] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Revised: 02/02/2019] [Accepted: 06/18/2019] [Indexed: 11/16/2022]
Abstract
Antibodies targeting CTLA-4 induce durable responses in some patients with melanoma and are being tested in a variety of human cancers. However, these therapies are ineffective for a majority of patients across tumor types. Further understanding the immune alterations induced by these therapies may enable the development of novel strategies to enhance tumor control and biomarkers to identify patients most likely to respond. In several murine models, including colon26, MC38, CT26, and B16 tumors cotreated with GVAX, anti-CTLA-4 efficacy depends on interactions between the Fc region of CTLA-4 antibodies and Fc receptors (FcR). Anti-CTLA-4 binding to FcRs has been linked to depletion of intratumoral T regulatory cells (Treg). In agreement with previous studies, we found that Tregs infiltrating CT26, B16-F1, and autochthonous Braf V600E Pten -/- melanoma tumors had higher expression of surface CTLA-4 (sCTLA-4) than other T-cell subsets, and anti-CTLA-4 treatment led to FcR-dependent depletion of Tregs infiltrating CT26 tumors. This Treg depletion coincided with activation and degranulation of intratumoral natural killer cells. Similarly, in non-small cell lung cancer (NSCLC) and melanoma patient-derived tumor tissue, Tregs had higher sCTLA-4 expression than other intratumoral T-cell subsets, and Tregs infiltrating NSCLC expressed more sCTLA-4 than circulating Tregs. Patients with cutaneous melanoma who benefited from ipilimumab, a mAb targeting CTLA-4, had higher intratumoral CD56 expression, compared with patients who received little to no benefit from this therapy. Furthermore, using the murine CT26 model we found that combination therapy with anti-CTLA-4 plus IL15/IL15Rα complexes enhanced tumor control compared with either monotherapy.
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Affiliation(s)
- Emilio Sanseviero
- Immunology, Microenvironment and Metastasis Program, Wistar Cancer Center, The Wistar Institute, Philadelphia, Pennsylvania
| | - Erin M O'Brien
- Immunology, Microenvironment and Metastasis Program, Wistar Cancer Center, The Wistar Institute, Philadelphia, Pennsylvania
| | - Jenna R Karras
- Immunology, Microenvironment and Metastasis Program, Wistar Cancer Center, The Wistar Institute, Philadelphia, Pennsylvania
| | - Tamer B Shabaneh
- Norris Cotton Cancer Center, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire.,Department of Microbiology and Immunology, Geisel School of Medicine at Dartmouth, Hanover, New Hampshire
| | - Bulent Arman Aksoy
- Department of Microbiology and Immunology, Medical University of South Carolina, Charleston, South Carolina
| | - Wei Xu
- Melanoma Program, Abramson Cancer Center, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Cathy Zheng
- Melanoma Program, Abramson Cancer Center, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Xiangfan Yin
- Molecular and Cellular Oncogenesis Program, Wistar Cancer Center, The Wistar Institute, Philadelphia, Pennsylvania
| | - Xiaowei Xu
- Melanoma Program, Abramson Cancer Center, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Giorgos C Karakousis
- Melanoma Program, Abramson Cancer Center, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Ravi K Amaravadi
- Melanoma Program, Abramson Cancer Center, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Brian Nam
- The Helen F. Graham Cancer Center & Research Institute, Christiana Care Health System, Newark, Delaware
| | - Mary Jo Turk
- Norris Cotton Cancer Center, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire.,Department of Microbiology and Immunology, Geisel School of Medicine at Dartmouth, Hanover, New Hampshire
| | - Jeff Hammerbacher
- Department of Microbiology and Immunology, Medical University of South Carolina, Charleston, South Carolina
| | - Mark P Rubinstein
- Department of Microbiology and Immunology, Medical University of South Carolina, Charleston, South Carolina.,Department of Surgery, Medical University of South Carolina, Charleston, South Carolina
| | - Lynn M Schuchter
- Melanoma Program, Abramson Cancer Center, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Tara C Mitchell
- Melanoma Program, Abramson Cancer Center, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Qin Liu
- Molecular and Cellular Oncogenesis Program, Wistar Cancer Center, The Wistar Institute, Philadelphia, Pennsylvania
| | - Erica L Stone
- Immunology, Microenvironment and Metastasis Program, Wistar Cancer Center, The Wistar Institute, Philadelphia, Pennsylvania.
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16
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Kvarnhammar AM, Veitonmäki N, Hägerbrand K, Dahlman A, Smith KE, Fritzell S, von Schantz L, Thagesson M, Werchau D, Smedenfors K, Johansson M, Rosén A, Åberg I, Winnerstam M, Nyblom E, Barchan K, Furebring C, Norlén P, Ellmark P. The CTLA-4 x OX40 bispecific antibody ATOR-1015 induces anti-tumor effects through tumor-directed immune activation. J Immunother Cancer 2019; 7:103. [PMID: 30975201 PMCID: PMC6458634 DOI: 10.1186/s40425-019-0570-8] [Citation(s) in RCA: 72] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Accepted: 03/19/2019] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND The CTLA-4 blocking antibody ipilimumab has demonstrated substantial and durable effects in patients with melanoma. While CTLA-4 therapy, both as monotherapy and in combination with PD-1 targeting therapies, has great potential in many indications, the toxicities of the current treatment regimens may limit their use. Thus, there is a medical need for new CTLA-4 targeting therapies with improved benefit-risk profile. METHODS ATOR-1015 is a human CTLA-4 x OX40 targeting IgG1 bispecific antibody generated by linking an optimized version of the Ig-like V-type domain of human CD86, a natural CTLA-4 ligand, to an agonistic OX40 antibody. In vitro evaluation of T-cell activation and T regulatory cell (Treg) depletion was performed using purified cells from healthy human donors or cell lines. In vivo anti-tumor responses were studied using human OX40 transgenic (knock-in) mice with established syngeneic tumors. Tumors and spleens from treated mice were analyzed for CD8+ T cell and Treg frequencies, T-cell activation markers and tumor localization using flow cytometry. RESULTS ATOR-1015 induces T-cell activation and Treg depletion in vitro. Treatment with ATOR-1015 reduces tumor growth and improves survival in several syngeneic tumor models, including bladder, colon and pancreas cancer models. It is further demonstrated that ATOR-1015 induces tumor-specific and long-term immunological memory and enhances the response to PD-1 inhibition. Moreover, ATOR-1015 localizes to the tumor area where it reduces the frequency of Tregs and increases the number and activation of CD8+ T cells. CONCLUSIONS By targeting CTLA-4 and OX40 simultaneously, ATOR-1015 is directed to the tumor area where it induces enhanced immune activation, and thus has the potential to be a next generation CTLA-4 targeting therapy with improved clinical efficacy and reduced toxicity. ATOR-1015 is also expected to act synergistically with anti-PD-1/PD-L1 therapy. The pre-clinical data support clinical development of ATOR-1015, and a first-in-human trial has started (NCT03782467).
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MESH Headings
- Animals
- Antibodies, Bispecific/pharmacology
- Antibodies, Bispecific/therapeutic use
- CHO Cells
- CTLA-4 Antigen/antagonists & inhibitors
- CTLA-4 Antigen/immunology
- Cell Line, Tumor/transplantation
- Cricetulus
- Disease Models, Animal
- Drug Screening Assays, Antitumor
- Female
- HEK293 Cells
- Humans
- Male
- Mice
- Mice, Transgenic
- Primary Cell Culture
- Proof of Concept Study
- Receptors, OX40/agonists
- Receptors, OX40/genetics
- Receptors, OX40/immunology
- T-Lymphocytes, Regulatory/drug effects
- T-Lymphocytes, Regulatory/immunology
- Urinary Bladder Neoplasms/drug therapy
- Urinary Bladder Neoplasms/immunology
- Urinary Bladder Neoplasms/pathology
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Affiliation(s)
| | - Niina Veitonmäki
- Alligator Bioscience AB, Medicon Village, Scheelevägen 2, 223 81 Lund, Sweden
| | - Karin Hägerbrand
- Alligator Bioscience AB, Medicon Village, Scheelevägen 2, 223 81 Lund, Sweden
| | - Anna Dahlman
- Alligator Bioscience AB, Medicon Village, Scheelevägen 2, 223 81 Lund, Sweden
| | - Karin Enell Smith
- Alligator Bioscience AB, Medicon Village, Scheelevägen 2, 223 81 Lund, Sweden
| | - Sara Fritzell
- Alligator Bioscience AB, Medicon Village, Scheelevägen 2, 223 81 Lund, Sweden
| | - Laura von Schantz
- Alligator Bioscience AB, Medicon Village, Scheelevägen 2, 223 81 Lund, Sweden
| | - Mia Thagesson
- Alligator Bioscience AB, Medicon Village, Scheelevägen 2, 223 81 Lund, Sweden
| | - Doreen Werchau
- Alligator Bioscience AB, Medicon Village, Scheelevägen 2, 223 81 Lund, Sweden
| | - Kristine Smedenfors
- Alligator Bioscience AB, Medicon Village, Scheelevägen 2, 223 81 Lund, Sweden
| | - Maria Johansson
- Alligator Bioscience AB, Medicon Village, Scheelevägen 2, 223 81 Lund, Sweden
| | - Anna Rosén
- Alligator Bioscience AB, Medicon Village, Scheelevägen 2, 223 81 Lund, Sweden
| | - Ida Åberg
- Alligator Bioscience AB, Medicon Village, Scheelevägen 2, 223 81 Lund, Sweden
| | - Magnus Winnerstam
- Alligator Bioscience AB, Medicon Village, Scheelevägen 2, 223 81 Lund, Sweden
| | - Eva Nyblom
- Alligator Bioscience AB, Medicon Village, Scheelevägen 2, 223 81 Lund, Sweden
| | - Karin Barchan
- Alligator Bioscience AB, Medicon Village, Scheelevägen 2, 223 81 Lund, Sweden
| | - Christina Furebring
- Alligator Bioscience AB, Medicon Village, Scheelevägen 2, 223 81 Lund, Sweden
| | - Per Norlén
- Alligator Bioscience AB, Medicon Village, Scheelevägen 2, 223 81 Lund, Sweden
| | - Peter Ellmark
- Alligator Bioscience AB, Medicon Village, Scheelevägen 2, 223 81 Lund, Sweden
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17
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Waight JD, Chand D, Dietrich S, Gombos R, Horn T, Gonzalez AM, Manrique M, Swiech L, Morin B, Brittsan C, Tanne A, Akpeng B, Croker BA, Buell JS, Stein R, Savitsky DA, Wilson NS. Selective FcγR Co-engagement on APCs Modulates the Activity of Therapeutic Antibodies Targeting T Cell Antigens. Cancer Cell 2018; 33:1033-1047.e5. [PMID: 29894690 PMCID: PMC6292441 DOI: 10.1016/j.ccell.2018.05.005] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Revised: 04/03/2018] [Accepted: 05/09/2018] [Indexed: 02/06/2023]
Abstract
The co-engagement of fragment crystallizable (Fc) gamma receptors (FcγRs) with the Fc region of recombinant immunoglobulin monoclonal antibodies (mAbs) and its contribution to therapeutic activity has been extensively studied. For example, Fc-FcγR interactions have been shown to be important for mAb-directed effector cell activities, as well as mAb-dependent forward signaling into target cells via receptor clustering. Here we identify a function of mAbs targeting T cell-expressed antigens that involves FcγR co-engagement on antigen-presenting cells (APCs). In the case of mAbs targeting CTLA-4 and TIGIT, the interaction with FcγR on APCs enhanced antigen-specific T cell responses and tumoricidal activity. This mechanism extended to an anti-CD45RB mAb, which led to FcγR-dependent regulatory T cell expansion in mice.
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MESH Headings
- Animals
- Antibodies, Monoclonal/immunology
- Antibodies, Monoclonal/metabolism
- Antibodies, Monoclonal/therapeutic use
- Antigen-Presenting Cells/immunology
- Antigen-Presenting Cells/metabolism
- Antigens, Differentiation, T-Lymphocyte/immunology
- Antigens, Differentiation, T-Lymphocyte/metabolism
- CTLA-4 Antigen/immunology
- CTLA-4 Antigen/metabolism
- Humans
- Mice, Inbred BALB C
- Mice, Inbred C57BL
- Neoplasms/drug therapy
- Neoplasms/immunology
- Neoplasms/metabolism
- Protein Binding
- Receptors, Antigen, T-Cell/immunology
- Receptors, Antigen, T-Cell/metabolism
- Receptors, IgG/immunology
- Receptors, IgG/metabolism
- Receptors, Immunologic/immunology
- Receptors, Immunologic/metabolism
- Signal Transduction/drug effects
- Signal Transduction/immunology
- T-Lymphocytes/drug effects
- T-Lymphocytes/immunology
- T-Lymphocytes/metabolism
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Affiliation(s)
| | | | - Sylvia Dietrich
- Agenus Inc., Lexington, MA 02421, USA; Division of Hematology/Oncology, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | | | | | | | | | | | | | | | | | | | - Ben A Croker
- Division of Hematology/Oncology, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA
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