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Wang Y, Li J, Wang Z, Liu Y, Wang T, Zhang M, Xia C, Zhang F, Huang D, Zhang L, Zhao Y, Liu L, Zhu Y, Qi H, Zhu X, Qian W, Hu F, Wang J. Comparison of seven CD19 CAR designs in engineering NK cells for enhancing anti-tumour activity. Cell Prolif 2024:e13683. [PMID: 38830795 DOI: 10.1111/cpr.13683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2024] [Revised: 05/13/2024] [Accepted: 05/20/2024] [Indexed: 06/05/2024] Open
Abstract
Chimeric antigen receptor-natural killer (CAR-NK) cell therapy is emerging as a promising cancer treatment, with notable safety and source diversity benefits over CAR-T cells. This study focused on optimizing CAR constructs for NK cells to maximize their therapeutic potential. We designed seven CD19 CAR constructs and expressed them in NK cells using a retroviral system, assessing their tumour-killing efficacy and persistence. Results showed all constructs enhanced tumour-killing and prolonged survival in tumour-bearing mice. In particular, CAR1 (CD8 TMD-CD3ζ SD)-NK cells showed superior efficacy in treating tumour-bearing animals and exhibited enhanced persistence when combined with OX40 co-stimulatory domain. Of note, CAR1-NK cells were most effective at lower effector-to-target ratios, while CAR4 (CD8 TMD-OX40 CD- FcεRIγ SD) compromised NK cell expansion ability. Superior survival rates were noted in mice treated with CAR1-, CAR2 (CD8 TMD- FcεRIγ SD)-, CAR3 (CD8 TMD-OX40 CD- CD3ζ SD)- and CAR4-NK cells over those treated with CAR5 (CD28 TMD- FcεRIγ SD)-, CAR6 (CD8 TMD-4-1BB CD-CD3ζ 1-ITAM SD)- and CAR7 (CD8 TMD-OX40 CD-CD3ζ 1-ITAM SD)-NK cells, with CAR5-NK cells showing the weakest anti-tumour activity. Increased expression of exhaustion markers, especially in CAR7-NK cells, suggests that combining CAR-NK cells with immune checkpoint inhibitors might improve anti-tumour outcomes. These findings provide crucial insights for developing CAR-NK cell products for clinical applications.
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Affiliation(s)
- Yao Wang
- Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute for Stem Cell and Regeneration, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
- Beijing Institute for Stem Cell and Regenerative Medicine, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Jianhuan Li
- Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute for Stem Cell and Regeneration, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
- Beijing Institute for Stem Cell and Regenerative Medicine, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Zhiqian Wang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute for Stem Cell and Regeneration, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
- Beijing Institute for Stem Cell and Regenerative Medicine, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Yanhong Liu
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute for Stem Cell and Regeneration, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Tongjie Wang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute for Stem Cell and Regeneration, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Mengyun Zhang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute for Stem Cell and Regeneration, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Chengxiang Xia
- Beijing Institute for Stem Cell and Regenerative Medicine, Beijing, China
| | - Fan Zhang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute for Stem Cell and Regeneration, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
- Beijing Institute for Stem Cell and Regenerative Medicine, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Dehao Huang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute for Stem Cell and Regeneration, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Leqiang Zhang
- Beijing Institute for Stem Cell and Regenerative Medicine, Beijing, China
| | - Yaoqin Zhao
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute for Stem Cell and Regeneration, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
- Beijing Institute for Stem Cell and Regenerative Medicine, Beijing, China
- GMU-GIBH Joint School of Life Sciences, Guangzhou Medical University, Guangzhou, China
| | - Lijuan Liu
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute for Stem Cell and Regeneration, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Yanping Zhu
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute for Stem Cell and Regeneration, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Hanmeng Qi
- Beijing Institute for Stem Cell and Regenerative Medicine, Beijing, China
| | - Xiaofan Zhu
- State Key Laboratory of Experimental Hematology & National Clinical Research Center for Blood Diseases, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China
- Center for Stem Cell Medicine & Department of Stem Cell and Regenerative Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China
| | - Wenbin Qian
- Department of Hematology, the Second Affiliated Hospital, College of Medicine, Zhejiang University, Zhejiang, Hangzhou, China
| | - Fangxiao Hu
- Beijing Institute for Stem Cell and Regenerative Medicine, Beijing, China
| | - Jinyong Wang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute for Stem Cell and Regeneration, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
- Beijing Institute for Stem Cell and Regenerative Medicine, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
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França RKA, Studart IC, Bezerra MRL, Pontes LQ, Barbosa AMA, Brigido MM, Furtado GP, Maranhão AQ. Progress on Phage Display Technology: Tailoring Antibodies for Cancer Immunotherapy. Viruses 2023; 15:1903. [PMID: 37766309 PMCID: PMC10536222 DOI: 10.3390/v15091903] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 08/31/2023] [Accepted: 09/05/2023] [Indexed: 09/29/2023] Open
Abstract
The search for innovative anti-cancer drugs remains a challenge. Over the past three decades, antibodies have emerged as an essential asset in successful cancer therapy. The major obstacle in developing anti-cancer antibodies is the need for non-immunogenic antibodies against human antigens. This unique requirement highlights a disadvantage to using traditional hybridoma technology and thus demands alternative approaches, such as humanizing murine monoclonal antibodies. To overcome these hurdles, human monoclonal antibodies can be obtained directly from Phage Display libraries, a groundbreaking tool for antibody selection. These libraries consist of genetically engineered viruses, or phages, which can exhibit antibody fragments, such as scFv or Fab on their capsid. This innovation allows the in vitro selection of novel molecules directed towards cancer antigens. As foreseen when Phage Display was first described, nowadays, several Phage Display-derived antibodies have entered clinical settings or are undergoing clinical evaluation. This comprehensive review unveils the remarkable progress in this field and the possibilities of using clever strategies for phage selection and tailoring the refinement of antibodies aimed at increasingly specific targets. Moreover, the use of selected antibodies in cutting-edge formats is discussed, such as CAR (chimeric antigen receptor) in CAR T-cell therapy or ADC (antibody drug conjugate), amplifying the spectrum of potential therapeutic avenues.
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Affiliation(s)
- Renato Kaylan Alves França
- Molecular Immunology Laboratory, Department of Cellular Biology, Institute of Biological Sciences, University of Brasilia, Brasilia 70910-900, Brazil; (R.K.A.F.); (M.M.B.)
- Graduate Program in Molecular Pathology, University of Brasilia, Brasilia 70910-900, Brazil
| | - Igor Cabral Studart
- Oswaldo Cruz Foundation, Fiocruz Ceará, Eusébio 61773-270, Brazil; (I.C.S.); (M.R.L.B.); (L.Q.P.); (A.M.A.B.); (G.P.F.)
- Graduate Program in Biotechnology of Natural Resources, Federal University of Ceará, Fortaleza 60440-970, Brazil
| | - Marcus Rafael Lobo Bezerra
- Oswaldo Cruz Foundation, Fiocruz Ceará, Eusébio 61773-270, Brazil; (I.C.S.); (M.R.L.B.); (L.Q.P.); (A.M.A.B.); (G.P.F.)
- Graduate Program in Biotechnology of Natural Resources, Federal University of Ceará, Fortaleza 60440-970, Brazil
| | - Larissa Queiroz Pontes
- Oswaldo Cruz Foundation, Fiocruz Ceará, Eusébio 61773-270, Brazil; (I.C.S.); (M.R.L.B.); (L.Q.P.); (A.M.A.B.); (G.P.F.)
- Graduate Program in Biotechnology of Natural Resources, Federal University of Ceará, Fortaleza 60440-970, Brazil
| | - Antonio Marcos Aires Barbosa
- Oswaldo Cruz Foundation, Fiocruz Ceará, Eusébio 61773-270, Brazil; (I.C.S.); (M.R.L.B.); (L.Q.P.); (A.M.A.B.); (G.P.F.)
- Graduate Program in Applied Informatics, University of Fortaleza, Fortaleza 60811-905, Brazil
| | - Marcelo Macedo Brigido
- Molecular Immunology Laboratory, Department of Cellular Biology, Institute of Biological Sciences, University of Brasilia, Brasilia 70910-900, Brazil; (R.K.A.F.); (M.M.B.)
| | - Gilvan Pessoa Furtado
- Oswaldo Cruz Foundation, Fiocruz Ceará, Eusébio 61773-270, Brazil; (I.C.S.); (M.R.L.B.); (L.Q.P.); (A.M.A.B.); (G.P.F.)
- Graduate Program in Biotechnology of Natural Resources, Federal University of Ceará, Fortaleza 60440-970, Brazil
| | - Andréa Queiroz Maranhão
- Molecular Immunology Laboratory, Department of Cellular Biology, Institute of Biological Sciences, University of Brasilia, Brasilia 70910-900, Brazil; (R.K.A.F.); (M.M.B.)
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3
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Smith R, Shen R. Complexities in comparing the impact of costimulatory domains on approved CD19 CAR functionality. J Transl Med 2023; 21:515. [PMID: 37518011 PMCID: PMC10387212 DOI: 10.1186/s12967-023-04372-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Accepted: 07/17/2023] [Indexed: 08/01/2023] Open
Abstract
Chimeric antigen receptors (CARs) are engineered to target T cells specifically to tumor cells, resulting in the engineered T cell killing the tumor cell. This technology has been developed to target a range of cancers, with the most notable successes in the treatment of B-cell malignancies where four approved therapies, all targeting CD19, are on the market. These four products differ in the costimulation domains, with axicabtagene ciloleucel (Yescarta) and brexucabtagene autoleucel (Tecartus) both utilizing the CD28 costimulation domain whilst tisagenlecleucel (Kymriah) and lisocabtagene maraleucel (Breyanzi) both utilizing the 4-1BB costimulation domain. There are clearly defined differences in how the CD28 and 4-1BB domains signal, yet it is difficult to ascertain which domain affords a superior mechanism of action given many other differences between these products, including overall CAR architecture and manufacturing methods. Additionally, while in vitro and preclinical in vivo studies have compared CARs with different costimulation domains, it remains a challenge to extrapolate differences observed in this biology across different experimental systems to the overall product performance. While there has been extensive preclinical and clinical work looking at CARs with a variety of targeting domains and architectures, this review will focus on the differences between the four marketed anti-CD19 CAR-Ts, with an additional focus on the impact of hinge and transmembrane domain on CAR activity and interaction with the target cell as well as other proteins on the surface of the T-cell.
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Affiliation(s)
| | - Rhine Shen
- Kite Pharma Inc, Santa Monica, CA, 90404, USA
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4
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Raftery MJ, Franzén AS, Radecke C, Boulifa A, Schönrich G, Stintzing S, Blohmer JU, Pecher G. Next Generation CD44v6-Specific CAR-NK Cells Effective against Triple Negative Breast Cancer. Int J Mol Sci 2023; 24:ijms24109038. [PMID: 37240385 DOI: 10.3390/ijms24109038] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 05/12/2023] [Accepted: 05/16/2023] [Indexed: 05/28/2023] Open
Abstract
There is a medical need to develop new and effective therapies against triple-negative breast cancer (TNBC). Chimeric antigen receptor (CAR) natural killer (NK) cells are a promising alternative to CAR-T cell therapy for cancer. A search for a suitable target in TNBC identified CD44v6, an adhesion molecule expressed in lymphomas, leukemias and solid tumors that is implicated in tumorigenesis and metastases. We have developed a next-generation CAR targeting CD44v6 that incorporates IL-15 superagonist and checkpoint inhibitor molecules. We could show that CD44v6 CAR-NK cells demonstrated effective cytotoxicity against TNBC in 3D spheroid models. The IL-15 superagonist was specifically released upon recognition of CD44v6 on TNBC and contributed to the cytotoxic attack. PD1 ligands are upregulated in TNBC and contribute to the immunosuppressive tumor microenvironment (TME). Competitive inhibition of PD1 neutralized inhibition by PD1 ligands expressed on TNBC. In total, CD44v6 CAR-NK cells are resistant to TME immunosuppression and offer a new therapeutic option for the treatment of BC, including TNBC.
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Affiliation(s)
- Martin J Raftery
- Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany
| | | | - Clarissa Radecke
- Onkologie und Tumorimmunologie, CCM, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Medizinische Klinik m. S. Hämatologie, Charitéplatz 1, 10117 Berlin, Germany
| | - Abdelhadi Boulifa
- Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany
| | - Günther Schönrich
- Institute of Virology, CCM, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Charitéplatz 1, 10117 Berlin, Germany
| | - Sebastian Stintzing
- Onkologie und Tumorimmunologie, CCM, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Medizinische Klinik m. S. Hämatologie, Charitéplatz 1, 10117 Berlin, Germany
| | - Jens-Uwe Blohmer
- Department of Gynecology and Breast Cancer Center, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Charitéplatz 1, 10117 Berlin, Germany
| | - Gabriele Pecher
- Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany
- Onkologie und Tumorimmunologie, CCM, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Medizinische Klinik m. S. Hämatologie, Charitéplatz 1, 10117 Berlin, Germany
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5
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Maiorova V, Mollaev MD, Vikhreva P, Chudakov DM, Kibardin A, Maschan MA, Larin S. Mutated Flt3Lg Provides Reduced Flt3 Recycling Compared to Wild-Type Flt3Lg and Retains the Specificity of Flt3Lg-Based CAR T-Cell Targeting in AML Models. Int J Mol Sci 2023; 24:ijms24087626. [PMID: 37108788 PMCID: PMC10146938 DOI: 10.3390/ijms24087626] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 04/12/2023] [Accepted: 04/19/2023] [Indexed: 04/29/2023] Open
Abstract
The cells of acute myeloid leukemia are defined by clonal growth and heterogenous immunophenotypes. Chimeric antigen receptors (CARs) commonly recognize molecular targets by single-chain antibody fragments (scFvs) specific to a tumor-associated antigen. However, ScFvs may form aggregates, thus stimulating tonic CAR T-cell activation and reducing CAR T-cell functioning in vivo. Harnessing natural ligands as recognition parts of CARs, specific targeting of membrane receptors can be achieved. Previously, we presented ligand-based Flt3-CAR T-cells targeting the Flt3 receptor. The extracellular part of Flt3-CAR consisted of full-size Flt3Lg. Meanwhile, upon recognition, Flt3-CAR may potentially activate Flt3, triggering proliferative signaling in blast cells. Moreover, the long-lasting presence of Flt3Lg may lead to Flt3 downregulation. In this paper, we present mutated Flt3Lg-based Flt3m-CAR ('m'-for 'mutant') T-cells targeting Flt3. The extracellular part of Flt3m-CAR consists of full-length Flt3Lg-L27P. We have determined that ED50 for recombinant Flt3Lg-L27P produced in CHO cells is at least 10-fold higher than for the wild-type Flt3Lg. We show that the mutation in the recognizing domain of Flt3m-CAR did not affect the specificity of Flt3m-CAR T-cells when compared to Flt3-CAR T-cells. Flt3m-CAR T-cells combine the specificity of ligand-receptor recognition with reduced Flt3Lg-L27P bioactivity, leading to potentially safer immunotherapy.
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Affiliation(s)
- Varvara Maiorova
- Dmitriy Rogachev National Medical Center of Pediatric Hematology, Oncology and Immunology, 117997 Moscow, Russia
- Center of Life Sciences, Skolkovo Institute of Science and Technology, 121205 Moscow, Russia
| | - Murad D Mollaev
- Dmitriy Rogachev National Medical Center of Pediatric Hematology, Oncology and Immunology, 117997 Moscow, Russia
| | - Polina Vikhreva
- Dmitriy Rogachev National Medical Center of Pediatric Hematology, Oncology and Immunology, 117997 Moscow, Russia
| | - Dmitriy M Chudakov
- Center of Life Sciences, Skolkovo Institute of Science and Technology, 121205 Moscow, Russia
- Institute of Translational Medicine, Pirogov Russian National Research Medical University, 117997 Moscow, Russia
| | - Alexey Kibardin
- Dmitriy Rogachev National Medical Center of Pediatric Hematology, Oncology and Immunology, 117997 Moscow, Russia
| | - Michael A Maschan
- Dmitriy Rogachev National Medical Center of Pediatric Hematology, Oncology and Immunology, 117997 Moscow, Russia
| | - Sergey Larin
- Dmitriy Rogachev National Medical Center of Pediatric Hematology, Oncology and Immunology, 117997 Moscow, Russia
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6
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Pappas EG, Kershaw MH, Slaney CY. Insights into Cancer Immunotherapies: Recent Breakthroughs, Opportunities, and Challenges. Cancers (Basel) 2023; 15:cancers15041322. [PMID: 36831663 PMCID: PMC9954646 DOI: 10.3390/cancers15041322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 02/14/2023] [Indexed: 02/22/2023] Open
Abstract
This Special Issue reminds us that, although incredible developments have occurred in the field of cancer immunotherapy, there is still plenty of room for improvement [...].
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Affiliation(s)
- Evan G. Pappas
- Cancer Immunology Program, Peter MacCallum Cancer Centre, Melbourne, VIC 3000, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, VIC 3010, Australia
| | - Michael H. Kershaw
- Cancer Immunology Program, Peter MacCallum Cancer Centre, Melbourne, VIC 3000, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, VIC 3010, Australia
| | - Clare Y. Slaney
- Cancer Immunology Program, Peter MacCallum Cancer Centre, Melbourne, VIC 3000, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, VIC 3010, Australia
- Correspondence:
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7
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T cell and B cell antigen receptors share a conserved core transmembrane structure. Proc Natl Acad Sci U S A 2022; 119:e2208058119. [PMID: 36409917 PMCID: PMC9860311 DOI: 10.1073/pnas.2208058119] [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: 11/22/2022] Open
Abstract
The B cell and T cell antigen receptors (BCR and TCR) share a common architecture in which variable dimeric antigen-binding modules assemble with invariant dimeric signaling modules to form functional receptor complexes. In the TCR, a highly conserved T cell receptor αβ (TCRαβ) transmembrane (TM) interface forms a rigid structure around which its three dimeric signaling modules assemble through well-characterized polar interactions. Noting that the key features stabilizing this TCRαβ TM interface also appear with high evolutionary conservation in the TM sequences of the membrane immunoglobulin (mIg) heavy chains that form the BCR's homodimeric antigen-binding module, we asked whether the BCR contained an analogous TM structure. Using an unbiased biochemical and computational modeling approach, we found that the mouse IgM BCR forms a core TM structure that is remarkably similar to that of the TCR. This structure is reinforced by a network of interhelical hydrogen bonds, and our model is nearly identical to the arrangement observed in the just-released cryo-electron microscopy (cryo-EM) structures of intact human BCRs. Our biochemical analysis shows that the integrity of this TM structure is vital for stable assembly with the BCR signaling module CD79AB in the B cell endoplasmic reticulum, and molecular dynamics simulations indicate that BCRs of all five isotypes can form comparable structures. These results demonstrate that, despite their many differences in composition, complexity, and ligand type, TCRs and BCRs rely on a common core TM structure that has been shaped by evolution for optimal receptor assembly and stability in the cell membrane.
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8
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Development of Cancer Immunotherapies. Cancer Treat Res 2022; 183:1-48. [PMID: 35551655 DOI: 10.1007/978-3-030-96376-7_1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Cancer immunotherapy, or the utilization of components of the immune system to target and eliminate cancer, has become a highly active area of research in the past several decades and a common treatment strategy for several cancer types. The concept of harnessing the immune system for this purpose originated over 100 years ago when a physician by the name of William Coley successfully treated several of his cancer patients with a combination of live and attenuated bacteria, later known as "Coley's Toxins", after observing a subset of prior patients enter remission following their diagnosis with the common bacterial infection, erysipelas. However, it was not until late in the twentieth century that cancer immunotherapies were developed for widespread use, thereby transforming the treatment landscape of numerous cancer types. Pivotal studies elucidating molecular and cellular functions of immune cells, such as the discovery of IL-2 and production of monoclonal antibodies, fostered the development of novel techniques for studying the immune system and ultimately the development and approval of several cancer immunotherapies by the United States Food and Drug Association in the 1980s and 1990s, including the tuberculosis vaccine-Bacillus Calmette-Guérin, IL-2, and the CD20-targeting monoclonal antibody. Approval of the first therapeutic cancer vaccine, Sipuleucel-T, for the treatment of metastatic castration-resistant prostate cancer and the groundbreaking success and approval of immune checkpoint inhibitors and chimeric antigen receptor T cell therapy in the last decade, have driven an explosion of interest in and pursuit of novel cancer immunotherapy strategies. A broad range of modalities ranging from antibodies to adoptive T cell therapies is under investigation for the generalized treatment of a broad spectrum of cancers as well as personalized medicine. This chapter will focus on the recent advances, current strategies, and future outlook of immunotherapy development for the treatment of cancer.
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9
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Elazar A, Chandler NJ, Davey AS, Weinstein JY, Nguyen JV, Trenker R, Cross RS, Jenkins MR, Call MJ, Call ME, Fleishman SJ. De novo-designed transmembrane domains tune engineered receptor functions. eLife 2022; 11:75660. [PMID: 35506657 PMCID: PMC9068223 DOI: 10.7554/elife.75660] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 04/14/2022] [Indexed: 12/20/2022] Open
Abstract
De novo-designed receptor transmembrane domains (TMDs) present opportunities for precise control of cellular receptor functions. We developed a de novo design strategy for generating programmed membrane proteins (proMPs): single-pass α-helical TMDs that self-assemble through computationally defined and crystallographically validated interfaces. We used these proMPs to program specific oligomeric interactions into a chimeric antigen receptor (CAR) that we expressed in mouse primary T cells and found that both in vitro CAR T cell cytokine release and in vivo antitumor activity scaled linearly with the oligomeric state encoded by the receptor TMD, from monomers up to tetramers. All programmed CARs stimulated substantially lower T cell cytokine release relative to the commonly used CD28 TMD, which we show elevated cytokine release through lateral recruitment of the endogenous T cell costimulatory receptor CD28. Precise design using orthogonal and modular TMDs thus provides a new way to program receptor structure and predictably tune activity for basic or applied synthetic biology.
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Affiliation(s)
- Assaf Elazar
- Department of Biomolecular Sciences, Weizmann Institute of Science, Rehovot, Israel
| | - Nicholas J Chandler
- Structural Biology Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia.,Department of Medical Biology, The University of Melbourne, Parkville, Victoria, Australia
| | - Ashleigh S Davey
- Structural Biology Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia.,Department of Medical Biology, The University of Melbourne, Parkville, Victoria, Australia
| | - Jonathan Y Weinstein
- Department of Biomolecular Sciences, Weizmann Institute of Science, Rehovot, Israel
| | - Julie V Nguyen
- Structural Biology Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia
| | - Raphael Trenker
- Structural Biology Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia.,Department of Medical Biology, The University of Melbourne, Parkville, Victoria, Australia
| | - Ryan S Cross
- Department of Medical Biology, The University of Melbourne, Parkville, Victoria, Australia.,Immunology Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia
| | - Misty R Jenkins
- Department of Medical Biology, The University of Melbourne, Parkville, Victoria, Australia.,Immunology Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia.,La Trobe Institute of Molecular Science, La Trobe University, Bundoora, Victoria, Australia
| | - Melissa J Call
- Structural Biology Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia.,Department of Medical Biology, The University of Melbourne, Parkville, Victoria, Australia
| | - Matthew E Call
- Structural Biology Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia.,Department of Medical Biology, The University of Melbourne, Parkville, Victoria, Australia
| | - Sarel J Fleishman
- Department of Biomolecular Sciences, Weizmann Institute of Science, Rehovot, Israel
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10
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Gambella M, Carlomagno S, Raiola AM, Giannoni L, Ghiggi C, Setti C, Giordano C, Luchetti S, Serio A, Bo A, Falco M, Della Chiesa M, Angelucci E, Sivori S. CD19-Targeted Immunotherapies for Diffuse Large B-Cell Lymphoma. Front Immunol 2022; 13:837457. [PMID: 35280988 PMCID: PMC8911710 DOI: 10.3389/fimmu.2022.837457] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 02/07/2022] [Indexed: 12/15/2022] Open
Abstract
Surgical resection, chemotherapy and radiotherapy were, for many years, the only available cancer treatments. Recently, the use of immune checkpoint inhibitors and adoptive cell therapies has emerged as promising alternative. These cancer immunotherapies are aimed to support or harness the patient's immune system to recognize and destroy cancer cells. Preclinical and clinical studies, based on the use of T cells and more recently NK cells genetically modified with chimeric antigen receptors retargeting the adoptive cell therapy towards tumor cells, have already shown remarkable results. In this review, we outline the latest highlights and progress in immunotherapies for the treatment of Diffuse Large B-cell Lymphoma (DLBCL) patients, focusing on CD19-targeted immunotherapies. We also discuss current clinical trials and opportunities of using immunotherapies to treat DLBCL patients.
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Affiliation(s)
- Massimiliano Gambella
- Ematologia e Terapie Cellulari, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
- Department of Experimental Medicine (DIMES), University of Genoa, Genoa, Italy
| | - Simona Carlomagno
- Department of Experimental Medicine (DIMES), University of Genoa, Genoa, Italy
| | - Anna Maria Raiola
- Ematologia e Terapie Cellulari, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - Livia Giannoni
- Ematologia e Terapie Cellulari, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - Chiara Ghiggi
- Ematologia e Terapie Cellulari, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - Chiara Setti
- Department of Experimental Medicine (DIMES), University of Genoa, Genoa, Italy
| | - Chiara Giordano
- Department of Experimental Medicine (DIMES), University of Genoa, Genoa, Italy
| | - Silvia Luchetti
- Ematologia e Terapie Cellulari, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - Alberto Serio
- Ematologia e Terapie Cellulari, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - Alessandra Bo
- Ematologia e Terapie Cellulari, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - Michela Falco
- Laboratory of Clinical and Experimental Immunology, Integrated Department of Services and Laboratories, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | | | - Emanuele Angelucci
- Ematologia e Terapie Cellulari, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - Simona Sivori
- Department of Experimental Medicine (DIMES), University of Genoa, Genoa, Italy
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11
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Sheyi R, de la Torre BG, Albericio F. Linkers: An Assurance for Controlled Delivery of Antibody-Drug Conjugate. Pharmaceutics 2022; 14:pharmaceutics14020396. [PMID: 35214128 PMCID: PMC8874516 DOI: 10.3390/pharmaceutics14020396] [Citation(s) in RCA: 48] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 01/27/2022] [Accepted: 02/04/2022] [Indexed: 12/15/2022] Open
Abstract
As one of the major therapeutic options for cancer treatment, chemotherapy has limited selectivity against cancer cells. Consequently, this therapeutic strategy offers a small therapeutic window with potentially high toxicity and thus limited efficacy of doses that can be tolerated by patients. Antibody-drug conjugates (ADCs) are an emerging class of anti-cancer therapeutic drugs that can deliver highly cytotoxic molecules directly to cancer cells. To date, twelve ADCs have received market approval, with several others in clinical stages. ADCs have become a powerful class of therapeutic agents in oncology and hematology. ADCs consist of recombinant monoclonal antibodies that are covalently bound to cytotoxic chemicals via synthetic linkers. The linker has a key role in ADC outcomes because its characteristics substantially impact the therapeutic index efficacy and pharmacokinetics of these drugs. Stable linkers and ADCs can maintain antibody concentration in blood circulation, and they do not release the cytotoxic drug before it reaches its target, thus resulting in minimum off-target effects. The linkers used in ADC development can be classified as cleavable and non-cleavable. The former, in turn, can be grouped into three types: hydrazone, disulfide, or peptide linkers. In this review, we highlight the various linkers used in ADC development and their design strategy, release mechanisms, and future perspectives.
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Affiliation(s)
- Rotimi Sheyi
- School of Chemistry and Physics, University of KwaZulu-Natal, Durban 4001, South Africa;
| | - Beatriz G. de la Torre
- Kwazulu-Natal Research Innovation and Sequencing Platform (KRISP), College of Health Sciences, University of KwaZulu-Natal, Durban 4001, South Africa
- Correspondence: (B.G.d.l.T.); (F.A.); Tel.: +27-614-047-528 (B.G.d.l.T.); +27-6140-09144 (F.A.)
| | - Fernando Albericio
- School of Chemistry and Physics, University of KwaZulu-Natal, Durban 4001, South Africa;
- Institute for Advanced Chemistry of Catalonia (IQAC-CSIC), 08034 Barcelona, Spain
- Networking Centre on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Department of Organic Chemistry, University of Barcelona, 08028 Barcelona, Spain
- Correspondence: (B.G.d.l.T.); (F.A.); Tel.: +27-614-047-528 (B.G.d.l.T.); +27-6140-09144 (F.A.)
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12
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Bashiri Dezfouli A, Yazdi M, Pockley AG, Khosravi M, Kobold S, Wagner E, Multhoff G. NK Cells Armed with Chimeric Antigen Receptors (CAR): Roadblocks to Successful Development. Cells 2021; 10:cells10123390. [PMID: 34943898 PMCID: PMC8699535 DOI: 10.3390/cells10123390] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 11/26/2021] [Accepted: 11/29/2021] [Indexed: 02/07/2023] Open
Abstract
In recent years, cell-based immunotherapies have demonstrated promising results in the treatment of cancer. Chimeric antigen receptors (CARs) arm effector cells with a weapon for targeting tumor antigens, licensing engineered cells to recognize and kill cancer cells. The quality of the CAR-antigen interaction strongly depends on the selected tumor antigen and its expression density on cancer cells. CD19 CAR-engineered T cells approved by the Food and Drug Administration have been most frequently applied in the treatment of hematological malignancies. Clinical challenges in their application primarily include cytokine release syndrome, neurological symptoms, severe inflammatory responses, and/or other off-target effects most likely mediated by cytotoxic T cells. As a consequence, there remains a significant medical need for more potent technology platforms leveraging cell-based approaches with enhanced safety profiles. A promising population that has been advanced is the natural killer (NK) cell, which can also be engineered with CARs. NK cells which belong to the innate arm of the immune system recognize and kill virally infected cells as well as (stressed) cancer cells in a major histocompatibility complex I independent manner. NK cells play an important role in the host’s immune defense against cancer due to their specialized lytic mechanisms which include death receptor (i.e., Fas)/death receptor ligand (i.e., Fas ligand) and granzyme B/perforin-mediated apoptosis, and antibody-dependent cellular cytotoxicity, as well as their immunoregulatory potential via cytokine/chemokine release. To develop and implement a highly effective CAR NK cell-based therapy with low side effects, the following three principles which are specifically addressed in this review have to be considered: unique target selection, well-designed CAR, and optimized gene delivery.
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Affiliation(s)
- Ali Bashiri Dezfouli
- Central Institute for Translational Cancer Research Technische Universität München (TranslaTUM), Department of Radiation Oncology, Klinikum Rechts der Isar, Einstein Str. 25, 81675 Munich, Germany;
- Correspondence: ; Tel.: +49-89-4140-6013
| | - Mina Yazdi
- Pharmaceutical Biotechnology, Department of Pharmacy, Ludwig-Maximilians-Universität (LMU), 81377 Munich, Germany; (M.Y.); (E.W.)
| | - Alan Graham Pockley
- John van Geest Cancer Research Centre, School of Science and Technology, Nottingham Trent University, Nottingham NG11 8NS, UK;
| | - Mohammad Khosravi
- Department of Pathobiology, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz 61357-831351, Iran;
| | - Sebastian Kobold
- Center of Integrated Protein Science Munich (CIPS-M) and Division of Clinical Pharmacology, Department of Medicine IV, University Hospital, Ludwig-Maximilians-Universität München, Member of the German Center for Lung Research (DZL), 80337 Munich, Germany;
- German Center for Translational Cancer Research (DKTK), Partner Site Munich, 80337 Munich, Germany
| | - Ernst Wagner
- Pharmaceutical Biotechnology, Department of Pharmacy, Ludwig-Maximilians-Universität (LMU), 81377 Munich, Germany; (M.Y.); (E.W.)
| | - Gabriele Multhoff
- Central Institute for Translational Cancer Research Technische Universität München (TranslaTUM), Department of Radiation Oncology, Klinikum Rechts der Isar, Einstein Str. 25, 81675 Munich, Germany;
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13
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Xiao X, Huang S, Chen S, Wang Y, Sun Q, Xu X, Li Y. Mechanisms of cytokine release syndrome and neurotoxicity of CAR T-cell therapy and associated prevention and management strategies. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2021; 40:367. [PMID: 34794490 PMCID: PMC8600921 DOI: 10.1186/s13046-021-02148-6] [Citation(s) in RCA: 77] [Impact Index Per Article: 25.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Accepted: 10/20/2021] [Indexed: 02/08/2023]
Abstract
Chimeric antigen receptor (CAR) T-cell therapy has yielded impressive outcomes and transformed treatment algorithms for hematological malignancies. To date, five CAR T-cell products have been approved by the US Food and Drug Administration (FDA). Nevertheless, some significant toxicities pose great challenges to the development of CAR T-cell therapy, most notably cytokine release syndrome (CRS) and immune effector cell-associated neurotoxicity syndrome (ICANS). Understanding the mechanisms underlying these toxicities and establishing prevention and treatment strategies are important. In this review, we summarize the mechanisms underlying CRS and ICANS and provide potential treatment and prevention strategies.
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Affiliation(s)
- Xinyi Xiao
- The Second School of Clinical Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, People's Republic of China
| | - Shengkang Huang
- The Second School of Clinical Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, People's Republic of China
| | - Sifei Chen
- The Second School of Clinical Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, People's Republic of China
| | - Yazhuo Wang
- The Second School of Clinical Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, People's Republic of China.,Medical College of Rehabilitation, Southern Medical University, Guangzhou, Guangdong, 510515, People's Republic of China
| | - Qihang Sun
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, Guangdong, 510623, People's Republic of China
| | - Xinjie Xu
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100037, People's Republic of China.
| | - Yuhua Li
- Department of Hematology, Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, People's Republic of China. .,Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory), Guangzhou, Guangdong, 510005, People's Republic of China.
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14
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Lechermann LM, Lau D, Attili B, Aloj L, Gallagher FA. In Vivo Cell Tracking Using PET: Opportunities and Challenges for Clinical Translation in Oncology. Cancers (Basel) 2021; 13:4042. [PMID: 34439195 PMCID: PMC8392745 DOI: 10.3390/cancers13164042] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 08/04/2021] [Accepted: 08/05/2021] [Indexed: 12/21/2022] Open
Abstract
Cell therapy is a rapidly evolving field involving a wide spectrum of therapeutic cells for personalised medicine in cancer. In vivo imaging and tracking of cells can provide useful information for improving the accuracy, efficacy, and safety of cell therapies. This review focuses on radiopharmaceuticals for the non-invasive detection and tracking of therapeutic cells using positron emission tomography (PET). A range of approaches for imaging therapeutic cells is discussed: Direct ex vivo labelling of cells, in vivo indirect labelling of cells by utilising gene reporters, and detection of specific antigens expressed on the target cells using antibody-based radiopharmaceuticals (immuno-PET). This review examines the evaluation of PET imaging methods for therapeutic cell tracking in preclinical cancer models, their role in the translation into patients, first-in-human studies, as well as the translational challenges involved and how they can be overcome.
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Affiliation(s)
- Laura M. Lechermann
- Department of Radiology, University of Cambridge, Cambridge CB2 0QQ, UK; (B.A.); (L.A.); (F.A.G.)
- Cancer Research UK Cambridge Centre, Cambridge CB2 0RE, UK
| | - Doreen Lau
- Department of Radiology, University of Cambridge, Cambridge CB2 0QQ, UK; (B.A.); (L.A.); (F.A.G.)
- Cancer Research UK Cambridge Centre, Cambridge CB2 0RE, UK
| | - Bala Attili
- Department of Radiology, University of Cambridge, Cambridge CB2 0QQ, UK; (B.A.); (L.A.); (F.A.G.)
- Cancer Research UK Cambridge Centre, Cambridge CB2 0RE, UK
| | - Luigi Aloj
- Department of Radiology, University of Cambridge, Cambridge CB2 0QQ, UK; (B.A.); (L.A.); (F.A.G.)
- Cancer Research UK Cambridge Centre, Cambridge CB2 0RE, UK
- Department of Nuclear Medicine, Addenbrooke’s Hospital, Cambridge CB2 0QQ, UK
| | - Ferdia A. Gallagher
- Department of Radiology, University of Cambridge, Cambridge CB2 0QQ, UK; (B.A.); (L.A.); (F.A.G.)
- Cancer Research UK Cambridge Centre, Cambridge CB2 0RE, UK
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15
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Pahlavanneshan S, Sayadmanesh A, Ebrahimiyan H, Basiri M. Toll-Like Receptor-Based Strategies for Cancer Immunotherapy. J Immunol Res 2021; 2021:9912188. [PMID: 34124272 PMCID: PMC8166496 DOI: 10.1155/2021/9912188] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 04/28/2021] [Accepted: 05/09/2021] [Indexed: 12/16/2022] Open
Abstract
Toll-like receptors (TLRs) are expressed and play multiple functional roles in a variety of immune cell types involved in tumor immunity. There are plenty of data on the pharmacological targeting of TLR signaling using agonist molecules that boost the antitumor immune response. A recent body of research has also demonstrated promising strategies for improving the cell-based immunotherapy methods by inducing TLR signaling. These strategies include systemic administration of TLR antagonist along with immune cell transfer and also genetic engineering of the immune cells using TLR signaling components to improve the function of genetically engineered immune cells such as chimeric antigen receptor-modified T cells. Here, we explore the current status of the cancer immunotherapy approaches based on manipulation of TLR signaling to provide a perspective of the underlying rationales and potential clinical applications. Altogether, reviewed publications suggest that TLRs make a potential target for the immunotherapy of cancer.
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Affiliation(s)
- Saghar Pahlavanneshan
- Functional Neurosurgery Research Center, Shohada Tajrish Comprehensive Neurosurgical Center of Excellence, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ali Sayadmanesh
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Hamidreza Ebrahimiyan
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Mohsen Basiri
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
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16
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Alfageme-Abello O, Porret R, Perreau M, Perez L, Muller YD. Chimeric antigen receptor T-cell therapy for HIV cure. Curr Opin HIV AIDS 2021; 16:88-97. [PMID: 33560017 DOI: 10.1097/coh.0000000000000665] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
PURPOSE OF REVIEW Cell-based immunotherapies have made enormous progress over the last decade with the approval of several anti-CD19-chimeric antigen receptor (CAR)-T cell therapies for haemato-oncological diseases. CARs are synthetic receptors comprising an antigen-specific extracellular domain fused to a hinge, transmembrane and intracellular signalling domains. The success obtained with CD19 CAR-T cells rekindled interest in using CAR-T cells to treat HIV seropositive patients. The purpose of this review is to discuss historical and recent developments of anti-HIV CARs. RECENT FINDINGS Since the first description of CD4+-based CARs in the early 90s, new generations of anti-HIV CARs were developed. They target the hetero-trimeric glycoprotein gp120/gp41 and consist of either a CD4+ extracellular domain or a VH/VL segment derived from broadly neutralizing antibodies. Recent efforts were employed in multiplexing CAR specificities, intracellular signalling domains and T cells resistance to HIV. SUMMARY Several new-anti HIV CAR-T cells were successfully tested in preclinical mice models and are now waiting to be evaluated in clinical trials. One of the key parameters to successfully using CAR-T cells in HIV treatment will depend on their capacity to control the HIV reservoir without causing off-targeting activities.
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Affiliation(s)
- Oscar Alfageme-Abello
- Lausanne University Hospital (CHUV), Department of Medicine, Division of Immunology and Allergy, Lausanne, Switzerland
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