1
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Teppert K, Yonezawa Ogusuku IE, Brandes C, Herbel V, Winter N, Werchau N, Khorkova S, Wöhle C, Jelveh N, Bisdorf K, Engels B, Schaser T, Anders K, Künkele A, Lock D. CAR'TCR-T cells co-expressing CD33-CAR and dNPM1-TCR as superior dual-targeting approach for AML treatment. MOLECULAR THERAPY. ONCOLOGY 2024; 32:200797. [PMID: 38601972 PMCID: PMC11004219 DOI: 10.1016/j.omton.2024.200797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Accepted: 03/20/2024] [Indexed: 04/12/2024]
Abstract
Acute myeloid leukemia (AML), a fast-progressing hematological malignancy affecting myeloid cells, is typically treated with chemotherapy or hematopoietic stem cell transplantation. However, approximately half of the patients face relapses and 5-year survival rates are poor. With the goal to facilitate dual-specificity, boosting anti-tumor activity, and minimizing the risk for antigen escape, this study focused on combining chimeric antigen receptor (CAR) and T cell receptor (TCR) technologies. CAR'TCR-T cells, co-expressing a CD33-CAR and a transgenic dNPM1-TCR, revealed increased and prolonged anti-tumor activity in vitro, particularly in case of low target antigen expression. The distinct transcriptomic profile suggested enhanced formation of immunological synapses, activation, and signaling. Complete elimination of AML xenografts in vivo was only achieved with a cell product containing CAR'TCR-T, CAR-T, and TCR-T cells, representing the outcome of co-transduction with two lentiviral vectors encoding either CAR or TCR. A mixture of CAR-T and TCR-T cells, without CAR'TCR-T cells, did not prevent progressive tumor outgrowth and was comparable to treatment with CAR-T and TCR-T cells individually. Overall, our data underscore the efficacy of co-expressing CAR and transgenic TCR in one T cell, and might open a novel therapeutic avenue not only for AML but also other malignancies.
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Affiliation(s)
- Karin Teppert
- Miltenyi Biotec B.V. & Co. KG, 51429 Bergisch Gladbach, Germany
| | | | | | - Vera Herbel
- Miltenyi Biotec B.V. & Co. KG, 51429 Bergisch Gladbach, Germany
| | - Nora Winter
- Miltenyi Biotec B.V. & Co. KG, 51429 Bergisch Gladbach, Germany
| | - Niels Werchau
- Miltenyi Biotec B.V. & Co. KG, 51429 Bergisch Gladbach, Germany
| | | | - Christian Wöhle
- Miltenyi Biotec B.V. & Co. KG, 51429 Bergisch Gladbach, Germany
| | - Nojan Jelveh
- Miltenyi Biotec B.V. & Co. KG, 51429 Bergisch Gladbach, Germany
| | - Kevin Bisdorf
- Miltenyi Biotec B.V. & Co. KG, 51429 Bergisch Gladbach, Germany
| | - Boris Engels
- Miltenyi Biotec B.V. & Co. KG, 51429 Bergisch Gladbach, Germany
| | - Thomas Schaser
- Miltenyi Biotec B.V. & Co. KG, 51429 Bergisch Gladbach, Germany
| | - Kathleen Anders
- Department of Pediatric Oncology and Hematology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, 10178 Berlin, Germany
- German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany
| | - Annette Künkele
- Department of Pediatric Oncology and Hematology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, 10178 Berlin, Germany
- German Cancer Consortium (DKTK), 10117 Berlin, Germany
- German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany
| | - Dominik Lock
- Miltenyi Biotec B.V. & Co. KG, 51429 Bergisch Gladbach, Germany
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2
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Frankel NW, Deng H, Yucel G, Gainer M, Leemans N, Lam A, Li Y, Hung M, Lee D, Lee CT, Banicki A, Tian M, Almudhfar N, Naitmazi L, Roguev A, Lee S, Wong W, Gordley R, Lu TK, Garrison BS. Precision off-the-shelf natural killer cell therapies for oncology with logic-gated gene circuits. Cell Rep 2024; 43:114145. [PMID: 38669141 DOI: 10.1016/j.celrep.2024.114145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 03/25/2024] [Accepted: 04/09/2024] [Indexed: 04/28/2024] Open
Abstract
Acute myeloid leukemia (AML) is an aggressive disease with a poor prognosis (5-year survival rate of 30.5% in the United States). Designing cell therapies to target AML is challenging because no single tumor-associated antigen (TAA) is highly expressed on all cancer subpopulations. Furthermore, TAAs are also expressed on healthy cells, leading to toxicity risk. To address these targeting challenges, we engineer natural killer (NK) cells with a multi-input gene circuit consisting of chimeric antigen receptors (CARs) controlled by OR and NOT logic gates. The OR gate kills a range of AML cells from leukemic stem cells to blasts using a bivalent CAR targeting FLT3 and/or CD33. The NOT gate protects healthy hematopoietic stem cells (HSCs) using an inhibitory CAR targeting endomucin, a protective antigen unique to healthy HSCs. NK cells with the combined OR-NOT gene circuit kill multiple AML subtypes and protect primary HSCs, and the circuit also works in vivo.
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MESH Headings
- Killer Cells, Natural/immunology
- Killer Cells, Natural/metabolism
- Humans
- Leukemia, Myeloid, Acute/therapy
- Leukemia, Myeloid, Acute/genetics
- Leukemia, Myeloid, Acute/immunology
- Animals
- Mice
- Receptors, Chimeric Antigen/metabolism
- Receptors, Chimeric Antigen/immunology
- Gene Regulatory Networks
- Hematopoietic Stem Cells/metabolism
- Cell Line, Tumor
- Precision Medicine/methods
- Cell- and Tissue-Based Therapy/methods
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Affiliation(s)
| | - Han Deng
- Senti Biosciences, Inc., South San Francisco, CA 94080, USA
| | - Gozde Yucel
- Senti Biosciences, Inc., South San Francisco, CA 94080, USA
| | - Marcus Gainer
- Senti Biosciences, Inc., South San Francisco, CA 94080, USA
| | - Nelia Leemans
- Senti Biosciences, Inc., South San Francisco, CA 94080, USA
| | - Alice Lam
- Senti Biosciences, Inc., South San Francisco, CA 94080, USA
| | - Yongshuai Li
- Senti Biosciences, Inc., South San Francisco, CA 94080, USA
| | - Michelle Hung
- Senti Biosciences, Inc., South San Francisco, CA 94080, USA
| | - Derrick Lee
- Senti Biosciences, Inc., South San Francisco, CA 94080, USA
| | - Chen-Ting Lee
- Senti Biosciences, Inc., South San Francisco, CA 94080, USA
| | - Andrew Banicki
- Senti Biosciences, Inc., South San Francisco, CA 94080, USA
| | - Mengxi Tian
- Senti Biosciences, Inc., South San Francisco, CA 94080, USA
| | | | | | - Assen Roguev
- Senti Biosciences, Inc., South San Francisco, CA 94080, USA
| | | | | | | | - Timothy K Lu
- Senti Biosciences, Inc., South San Francisco, CA 94080, USA; Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
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3
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Guijarro-Albaladejo B, Marrero-Cepeda C, Rodríguez-Arbolí E, Sierro-Martínez B, Pérez-Simón JA, García-Guerrero E. Chimeric antigen receptor (CAR) modified T Cells in acute myeloid leukemia: limitations and expectations. Front Cell Dev Biol 2024; 12:1376554. [PMID: 38694825 PMCID: PMC11061469 DOI: 10.3389/fcell.2024.1376554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Accepted: 04/04/2024] [Indexed: 05/04/2024] Open
Abstract
Acute myeloid leukemia (AML) is an aggressive hematologic malignancy with a poor prognosis despite the advent of novel therapies. Consequently, a major need exists for new therapeutic options, particularly for patients with relapsed/refractory (R/R) AML. In recent years, it has been possible to individualize the treatment of a subgroup of patients, particularly with the emergence of multiple targeted therapies. Nonetheless, a considerable number of patients remain without therapeutic options, and overall prognosis remains poor because of a high rate of disease relapse. In this sense, cellular therapies, especially chimeric antigen receptor (CAR)-T cell therapy, have dramatically shifted the therapeutic options for other hematologic malignancies, such as diffuse large B cell lymphoma and acute lymphoblastic leukemia. In contrast, effectively treating AML with CAR-based immunotherapy poses major biological and clinical challenges, most of them derived from the unmet need to identify target antigens with expression restricted to the AML blast without compromising the viability of the normal hematopoietic stem cell counterpart. Although those limitations have hampered CAR-T cell therapy translation to the clinic, there are several clinical trials where target antigens, such as CD123, CLL-1 or CD33 are being used to treat AML patients showing promising results. Moreover, there are continuing efforts to enhance the specificity and efficacy of CAR-T cell therapy in AML. These endeavors encompass the exploration of novel avenues, including the development of dual CAR-T cells and next-generation CAR-T cells, as well as the utilization of gene editing tools to mitigate off-tumor toxicities. In this review, we will summarize the ongoing clinical studies and the early clinical results reported with CAR-T cells in AML, as well as highlight CAR-T cell limitations and the most recent approaches to overcome these barriers. We will also discuss how and when CAR-T cells should be used in the context of AML.
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Affiliation(s)
- Beatriz Guijarro-Albaladejo
- Instituto de Biomedicina de Sevilla, IBiS/Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Servicio de Hematología, Hospital Universitario Virgen del Rocío, Seville, Spain
| | - Cristina Marrero-Cepeda
- Unidad de Gestión Clínica de Hematología, Instituto de Biomedicina de Sevilla, IBiS/Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Seville, Spain
| | - Eduardo Rodríguez-Arbolí
- Unidad de Gestión Clínica de Hematología, Instituto de Biomedicina de Sevilla, IBiS/Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Seville, Spain
| | - Belén Sierro-Martínez
- Instituto de Biomedicina de Sevilla, IBiS/Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Servicio de Hematología, Hospital Universitario Virgen del Rocío, Seville, Spain
| | - José Antonio Pérez-Simón
- Unidad de Gestión Clínica de Hematología, Instituto de Biomedicina de Sevilla, IBiS/Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Seville, Spain
| | - Estefanía García-Guerrero
- Instituto de Biomedicina de Sevilla, IBiS/Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Servicio de Hematología, Hospital Universitario Virgen del Rocío, Seville, Spain
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4
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Knight E T, Oluwole O, Kitko C. The Implementation of Chimeric Antigen Receptor (CAR) T-cell Therapy in Pediatric Patients: Where Did We Come From, Where Are We Now, and Where are We Going? Clin Hematol Int 2024; 6:96-115. [PMID: 38817691 PMCID: PMC11108586 DOI: 10.46989/001c.94386] [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: 01/17/2024] [Accepted: 02/13/2024] [Indexed: 06/01/2024] Open
Abstract
CD19-directed Chimeric Antigen Receptor (CAR) T-cell therapy has revolutionized the treatment of patients with B-cell acute lymphoblastic leukemia (B-ALL). Somewhat uniquely among oncologic clinical trials, early clinical development occurred simultaneously in both children and adults. In subsequent years however, the larger number of adult patients with relapsed/refractory (r/r) malignancies has led to accelerated development of multiple CAR T-cell products that target a variety of malignancies, resulting in six currently FDA-approved for adult patients. By comparison, only a single CAR-T cell therapy is approved by the FDA for pediatric patients: tisagenlecleucel, which is approved for patients ≤ 25 years with refractory B-cell precursor ALL, or B-cell ALL in second or later relapse. Tisagenlecleucel is also under evaluation in pediatric patients with relapsed/refractory B-cell non-Hodgkin lymphoma, but is not yet been approved for this indication. All the other FDA-approved CD19-directed CAR-T cell therapies available for adult patients (axicabtagene ciloleucel, brexucabtagene autoleucel, and lisocabtagene maraleucel) are currently under investigations among children, with preliminary results available in some cases. As the volume and complexity of data continue to grow, so too does the necessity of rapid assimilation and implementation of those data. This is particularly true when considering "atypical" situations, e.g. those arising when patients do not precisely conform to the profile of those included in pivotal clinical trials, or when alternative treatment options (e.g. hematopoietic stem cell transplantation (HSCT) or bispecific T-cell engagers (BITEs)) are also available. We have therefore developed a relevant summary of the currently available literature pertaining to the use of CD19-directed CAR-T cell therapies in pediatric patients, and sought to provide guidance for clinicians seeking additional data about specific clinical situations.
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Affiliation(s)
| | - Olalekan Oluwole
- Medicine Hematology and Oncology, Vanderbilt University Medical Center
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5
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Li K, Xie G, Deng X, Zhang Y, Jia Z, Huang Z. Antibody-drug conjugates in urinary tumors: clinical application, challenge, and perspectives. Front Oncol 2023; 13:1259784. [PMID: 38173833 PMCID: PMC10761427 DOI: 10.3389/fonc.2023.1259784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Accepted: 12/06/2023] [Indexed: 01/05/2024] Open
Abstract
Urinary tumors primarily consist of kidney, urothelial, and prostate malignancies, which pose significant treatment challenges, particularly in advanced stages. Antibody-drug conjugates (ADCs) have emerged as a promising therapeutic approach, combining monoclonal antibody specificity with cytotoxic chemotherapeutic payloads. This review highlights recent advancements, opportunities, and challenges in ADC application for urinary tumors. We discuss the FDA-approved ADCs and other novel ADCs under investigation, emphasizing their potential to improve patient outcomes. Furthermore, we explore strategies to address challenges, such as toxicity management, predictive biomarker identification, and resistance mechanisms. Additionally, we examine the integration of ADCs with other treatment modalities, including immune checkpoint inhibitors, targeted therapies, and radiation therapy. By addressing these challenges and exploring innovative approaches, the development of ADCs may significantly enhance therapeutic options and outcomes for patients with advanced urinary tumor.
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Affiliation(s)
- Keqiang Li
- Department of Urology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
- Academy of Medical Sciences, Zhengzhou University, Zhengzhou, Henan, China
| | - Guoqing Xie
- Department of Urology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
- Academy of Medical Sciences, Zhengzhou University, Zhengzhou, Henan, China
| | - Xiyue Deng
- Department of Urology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
- Academy of Medical Sciences, Zhengzhou University, Zhengzhou, Henan, China
| | - Yu Zhang
- Department of Urology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
- Academy of Medical Sciences, Zhengzhou University, Zhengzhou, Henan, China
| | - Zhankui Jia
- Department of Urology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Zhenlin Huang
- Department of Urology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
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6
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Garg S, Ni W, Griffin JD, Sattler M. Chimeric Antigen Receptor T Cell Therapy in Acute Myeloid Leukemia: Trials and Tribulations. Hematol Rep 2023; 15:608-626. [PMID: 37987319 PMCID: PMC10660693 DOI: 10.3390/hematolrep15040063] [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: 07/18/2023] [Revised: 08/01/2023] [Accepted: 11/08/2023] [Indexed: 11/22/2023] Open
Abstract
Acute myeloid leukemia (AML) is a heterogeneous hematological malignancy that is often associated with relapse and drug resistance after standard chemotherapy or targeted therapy, particularly in older patients. Hematopoietic stem cell transplants are looked upon as the ultimate salvage option with curative intent. Adoptive cell therapy using chimeric antigen receptors (CAR) has shown promise in B cell malignancies and is now being investigated in AML. Initial clinical trials have been disappointing in AML, and we review current strategies to improve efficacy for CAR approaches. The extensive number of clinical trials targeting different antigens likely reflects the genetic heterogeneity of AML. The limited number of patients reported in multiple early clinical studies makes it difficult to draw conclusions about CAR safety, but it does suggest that the efficacy of this approach in AML lags behind the success observed in B cell malignancies. There is a clear need not only to improve CAR design but also to identify targets in AML that show limited expression in normal myeloid lineage cells.
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Affiliation(s)
- Swati Garg
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; (W.N.); (J.D.G.); (M.S.)
- Department of Medicine, Harvard Medical School, Boston, MA 02115, USA
| | - Wei Ni
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; (W.N.); (J.D.G.); (M.S.)
- Department of Medicine, Harvard Medical School, Boston, MA 02115, USA
| | - James D. Griffin
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; (W.N.); (J.D.G.); (M.S.)
- Department of Medicine, Harvard Medical School, Boston, MA 02115, USA
| | - Martin Sattler
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; (W.N.); (J.D.G.); (M.S.)
- Department of Medicine, Harvard Medical School, Boston, MA 02115, USA
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7
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Schengrund CL. The Ying and Yang of Ganglioside Function in Cancer. Cancers (Basel) 2023; 15:5362. [PMID: 38001622 PMCID: PMC10670608 DOI: 10.3390/cancers15225362] [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: 09/29/2023] [Revised: 10/23/2023] [Accepted: 10/28/2023] [Indexed: 11/26/2023] Open
Abstract
The plethora of information about the expression of cancer cell-associated gangliosides, their role(s) in signal transduction, and their potential usefulness in the development of cancer treatments makes this an appropriate time to review these enigmatic glycosphingolipids. Evidence, reflecting the work of many, indicates that (1) expression of specific gangliosides, not generally found in high concentrations in most normal human cells, can be linked to certain types of cancer. (2) Gangliosides can affect the ability of cells to interact either directly or indirectly with growth factor receptors, thereby changing such things as a cell's mobility, rate of proliferation, and metastatic ability. (3) Anti-ganglioside antibodies have been tested, with some success, as potential treatments for certain cancers. (4) Cancer-associated gangliosides shed into the circulation can (a) affect immune cell responsiveness either positively or negatively, (b) be considered as diagnostic markers, and (c) be used to look for recurrence. (5) Cancer registries enable investigators to evaluate data from sufficient numbers of patients to obtain information about potential therapies. Despite advances that have been made, a discussion of possible approaches to identifying additional treatment strategies to inhibit metastasis, responsible for the majority of deaths of cancer patients, as well as for treating therapy-resistant tumors, is included.
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Affiliation(s)
- Cara-Lynne Schengrund
- Department of Biochemistry and Molecular Biology, The Pennsylvania State University College of Medicine, Hershey, PA 17033, USA
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8
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Molica M, Perrone S, Andriola C, Rossi M. Immunotherapy with Monoclonal Antibodies for Acute Myeloid Leukemia: A Work in Progress. Cancers (Basel) 2023; 15:5060. [PMID: 37894427 PMCID: PMC10605302 DOI: 10.3390/cancers15205060] [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: 08/31/2023] [Revised: 10/12/2023] [Accepted: 10/17/2023] [Indexed: 10/29/2023] Open
Abstract
In the last few years, molecularly targeted agents and immune-based treatments (ITs) have significantly changed the landscape of anti-cancer therapy. Indeed, ITs have been proven to be very effective when used against metastatic solid tumors, for which outcomes are extremely poor when using standard approaches. Such a scenario has only been partially reproduced in hematologic malignancies. In the context of acute myeloid leukemia (AML), as innovative drugs are eagerly awaited in the relapsed/refractory setting, different ITs have been explored, but the results are still unsatisfactory. In this work, we will discuss the most important clinical studies to date that adopt ITs in AML, providing the basis to understand how this approach, although still in its infancy, may represent a promising therapeutic tool for the future treatment of AML patients.
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Affiliation(s)
- Matteo Molica
- Department of Hematology-Oncology, Azienda Universitaria Ospedaliera Renato Dulbecco, 88100 Catanzaro, Italy;
| | - Salvatore Perrone
- Department of Hematology, Polo Universitario Pontino, S.M. Goretti Hospital, 04100 Latina, Italy;
| | - Costanza Andriola
- Hematology, Department of Translational and Precision Medicine, Sapienza University, 00100 Rome, Italy;
| | - Marco Rossi
- Department of Hematology-Oncology, Azienda Universitaria Ospedaliera Renato Dulbecco, 88100 Catanzaro, Italy;
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9
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Neldeborg S, Soerensen JF, Møller CT, Bill M, Gao Z, Bak RO, Holm K, Sorensen B, Nyegaard M, Luo Y, Hokland P, Stougaard M, Ludvigsen M, Holm CK. Dual intron-targeted CRISPR-Cas9-mediated disruption of the AML RUNX1-RUNX1T1 fusion gene effectively inhibits proliferation and decreases tumor volume in vitro and in vivo. Leukemia 2023; 37:1792-1801. [PMID: 37464068 PMCID: PMC10457201 DOI: 10.1038/s41375-023-01950-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 05/18/2023] [Accepted: 06/19/2023] [Indexed: 07/20/2023]
Abstract
Oncogenic fusion drivers are common in hematological cancers and are thus relevant targets of future CRISPR-Cas9-based treatment strategies. However, breakpoint-location variation in patients pose a challenge to traditional breakpoint-targeting CRISPR-Cas9-mediated disruption strategies. Here we present a new dual intron-targeting CRISPR-Cas9 treatment strategy, for targeting t(8;21) found in 5-10% of de novo acute myeloid leukemia (AML), which efficiently disrupts fusion genes without prior identification of breakpoint location. We show in vitro growth rate and proliferation reduction by 69 and 94% in AML t(8;21) Kasumi-1 cells, following dual intron-targeted disruption of RUNX1-RUNX1T1 compared to a non t(8;21) AML control. Furthermore, mice injected with RUNX1-RUNX1T1-disrupted Kasumi-1 cells had in vivo tumor growth reduction by 69 and 91% compared to controls. Demonstrating the feasibility of RUNX1-RUNX1T1 disruption, these findings were substantiated in isolated primary cells from a patient diagnosed with AML t(8;21). In conclusion, we demonstrate proof-of-principle of a dual intron-targeting CRISPR-Cas9 treatment strategy in AML t(8;21) without need for precise knowledge of the breakpoint location.
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Affiliation(s)
- Signe Neldeborg
- Department of Pathology, Aarhus University Hospital, Aarhus, Denmark
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Johannes Frasez Soerensen
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
- Department of Hematology, Aarhus University Hospital, Aarhus, Denmark
| | | | - Marie Bill
- Department of Hematology, Aarhus University Hospital, Aarhus, Denmark
| | - Zongliang Gao
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
| | - Rasmus O Bak
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
| | - Kasper Holm
- Department of Pathology, Aarhus University Hospital, Aarhus, Denmark
| | - Boe Sorensen
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
- Department of Clinical Biochemistry, Aarhus University Hospital, Aarhus, Denmark
| | - Mette Nyegaard
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
- Department of Health Science and Technology, Aalborg University, Aalborg, Denmark
| | - Yonglun Luo
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
- Steno Diabetes Center Aarhus, Aarhus University Hospital, Aarhus, Denmark
| | - Peter Hokland
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Magnus Stougaard
- Department of Pathology, Aarhus University Hospital, Aarhus, Denmark
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
- Danish Life Science Cluster, Copenhagen, Denmark
| | - Maja Ludvigsen
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark.
- Department of Hematology, Aarhus University Hospital, Aarhus, Denmark.
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10
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Perrone S, Capria S, Bernardi M, Marchesi F, Ortu La Barbera E, Trisolini SM, Minotti C, Shafii Bafti M, Scerpa MC, Mulé A, Ciceri F, Martelli M, Cimino G. Impact of gemtuzumab ozogamicin consolidation on hematopoietic stem cells (HSCs) mobilization in AML: analysis of 20 patients. Ann Hematol 2023; 102:769-775. [PMID: 36795117 DOI: 10.1007/s00277-023-05129-1] [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: 08/08/2022] [Accepted: 02/05/2023] [Indexed: 02/17/2023]
Abstract
Gemtuzumab ozogamicin (GO), is an anti-CD33 monoclonal antibody, approved for AML CD33 + , those patients with low and intermediate-risk who obtain a complete response may also be candidated for consolidation with autologous stem cell transplantation (ASCT). However, there are scant data on the mobilization of hemopoietic stem cells (HSC) after fractionated GO. We retrospectively studied data from five Italian centers and identified 20 patients (median age 54 years, range 29-69, 15 female, 15 NPM1mutated) that attempted HSC mobilization after fractionated doses of GO + "7 + 3" regimen and 1-2 cycles of consolidation (GO + HDAC + daunorubicin). After chemotherapy and standard G-CSF, 11/20 patients (55%) reached the threshold of 20 CD34 + /µL, and HSC were successfully harvested, while 9 patients (45%) failed. The median day of apheresis was Day + 26 from the start of chemotherapy (range 22-39 days). In good mobilizer patients, the median circulating CD34 + cells were 35.9 cells/µL and the median CD34 + harvested were 4.65 × 106/kg of patients' body weight. With a median follow-up of 12.7 months, at 24 months from the first diagnosis, 93.3% of all 20 patients were alive and the median overall survival was 25 months. The 2-year RFS rate from the timepoint of the first CR was 72.6%, while the median RFS was not reached. However, only five patients underwent ASCT and achieved full engraftment.In conclusion, in our cohort of patients, the addition of GO reduced HSC mobilization and harvesting, which was reached in about 55% of patients. Nevertheless, further studies are warranted to evaluate the effects of fractionated doses of GO on HSC mobilization and ASCT outcomes.
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Affiliation(s)
- Salvatore Perrone
- Hematology, Polo Universitario Pontino, "Sapienza", Via A. Canova S.M. Goretti Hospital, 04100, Latina, Italy.
| | - Saveria Capria
- Haematology, Department of Translational and Precision Medicine, Sapienza University of Rome, Rome, Italy
| | - Massimo Bernardi
- University Vita-Salute San Raffaele, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Francesco Marchesi
- Hematology and Stem Cell Transplant Unit, IRCCS Regina Elena National Cancer Institute, Istituti Fisioterapici Ospitalieri (I.F.O.), Rome, Italy
| | - Elettra Ortu La Barbera
- Hematology, Polo Universitario Pontino, "Sapienza", Via A. Canova S.M. Goretti Hospital, 04100, Latina, Italy
| | - Silvia Maria Trisolini
- Haematology, Department of Translational and Precision Medicine, Sapienza University of Rome, Rome, Italy
| | - Clara Minotti
- Haematology, Department of Translational and Precision Medicine, Sapienza University of Rome, Rome, Italy
| | - Mahnaz Shafii Bafti
- Department of Immunohematology and Transfusional Medicine, AOUP Umberto I, Rome, Italy
| | - Maria Cristina Scerpa
- Hematology, Polo Universitario Pontino, "Sapienza", Via A. Canova S.M. Goretti Hospital, 04100, Latina, Italy
| | - Antonino Mulé
- UOC Hematology and Oncology, Ospedali Riuniti Villa Sofia-Cervello, Palermo, Italy
| | - Fabio Ciceri
- University Vita-Salute San Raffaele, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Maurizio Martelli
- Haematology, Department of Translational and Precision Medicine, Sapienza University of Rome, Rome, Italy
| | - Giuseppe Cimino
- Hematology, Polo Universitario Pontino, "Sapienza", Via A. Canova S.M. Goretti Hospital, 04100, Latina, Italy.,Haematology, Department of Translational and Precision Medicine, Sapienza University of Rome, Rome, Italy
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11
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Esapa B, Jiang J, Cheung A, Chenoweth A, Thurston DE, Karagiannis SN. Target Antigen Attributes and Their Contributions to Clinically Approved Antibody-Drug Conjugates (ADCs) in Haematopoietic and Solid Cancers. Cancers (Basel) 2023; 15:1845. [PMID: 36980732 PMCID: PMC10046624 DOI: 10.3390/cancers15061845] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 03/10/2023] [Accepted: 03/10/2023] [Indexed: 03/30/2023] Open
Abstract
Antibody drug conjugates (ADCs) are powerful anti-cancer therapies comprising an antibody joined to a cytotoxic payload through a chemical linker. ADCs exploit the specificity of antibodies for their target antigens, combined with the potency of cytotoxic drugs, to selectively kill target antigen-expressing tumour cells. The recent rapid advancement of the ADC field has so far yielded twelve and eight ADCs approved by the US and EU regulatory bodies, respectively. These serve as effective targeted treatments for several haematological and solid tumour types. In the development of an ADC, the judicious choice of an antibody target antigen with high expression on malignant cells but restricted expression on normal tissues and immune cells is considered crucial to achieve selectivity and potency while minimising on-target off-tumour toxicities. Aside from this paradigm, the selection of an antigen for an ADC requires consideration of several factors relating to the expression pattern and biological features of the target antigen. In this review, we discuss the attributes of antigens selected as targets for antibodies used in clinically approved ADCs for the treatment of haematological and solid malignancies. We discuss target expression, functions, and cellular kinetics, and we consider how these factors might contribute to ADC efficacy.
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Affiliation(s)
- Benjamina Esapa
- St. John’s Institute of Dermatology, School of Basic & Medical Biosciences, King’s College London, Guy’s Hospital, London SE1 9RT, UK
| | - Jiexuan Jiang
- St. John’s Institute of Dermatology, School of Basic & Medical Biosciences, King’s College London, Guy’s Hospital, London SE1 9RT, UK
| | - Anthony Cheung
- St. John’s Institute of Dermatology, School of Basic & Medical Biosciences, King’s College London, Guy’s Hospital, London SE1 9RT, UK
- Breast Cancer Now Research Unit, School of Cancer & Pharmaceutical Sciences, King’s College London, Guy’s Cancer Centre, London SE1 9RT, UK
| | - Alicia Chenoweth
- St. John’s Institute of Dermatology, School of Basic & Medical Biosciences, King’s College London, Guy’s Hospital, London SE1 9RT, UK
- Breast Cancer Now Research Unit, School of Cancer & Pharmaceutical Sciences, King’s College London, Guy’s Cancer Centre, London SE1 9RT, UK
| | - David E. Thurston
- Institute of Pharmaceutical Science, School of Cancer and Pharmaceutical Sciences, King’s College London, London SE1 9NH, UK
| | - Sophia N. Karagiannis
- St. John’s Institute of Dermatology, School of Basic & Medical Biosciences, King’s College London, Guy’s Hospital, London SE1 9RT, UK
- Breast Cancer Now Research Unit, School of Cancer & Pharmaceutical Sciences, King’s College London, Guy’s Cancer Centre, London SE1 9RT, UK
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12
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Schmidts I, Haferlach T, Hoermann G. Precision Medicine in Therapy of Non-solid Cancer. Handb Exp Pharmacol 2023; 280:35-64. [PMID: 35989345 DOI: 10.1007/164_2022_608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The development and approval of the tyrosine kinase inhibitor imatinib in 2001 has heralded the advance of directed therapy options. Today, an armamentarium of targeted therapeutics is available and enables the use of precision medicine in non-solid cancer. Precision medicine is guided by the detection of tumor-specific and targetable characteristics. These include pathogenic fusions and/or mutations, dependency on specific signaling pathways, and the expression of certain cell surface markers. Within the first part, we review approved targeted therapies for the compound classes of small molecule inhibitors, antibody-based therapies and cellular therapies. Particular consideration is given to the underlying pathobiology and the respective mechanism of action. The second part emphasizes on how biomarkers, whether they are of diagnostic, prognostic, or predictive relevance, are indispensable tools to guide therapy choice and management in precision medicine. Finally, the examples of acute myeloid leukemia, chronic lymphocytic leukemia, and chronic myeloid leukemia illustrate how integration of these biomarkers helps to tailor therapy.
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13
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Inase A, Maimaitili Y, Kimbara S, Mizutani Y, Miyata Y, Ohata S, Matsumoto H, Kitao A, Sakai R, Kawaguchi K, Higashime A, Nagao S, Kurata K, Goto H, Kawamoto S, Yakushijin K, Minami H, Matsuoka H. GSK3 inhibitor enhances gemtuzumab ozogamicin-induced apoptosis in primary human leukemia cells by overcoming multiple mechanisms of resistance. EJHAEM 2022; 4:153-164. [PMID: 36819180 PMCID: PMC9928658 DOI: 10.1002/jha2.600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/23/2022] [Revised: 09/23/2022] [Accepted: 10/03/2022] [Indexed: 12/15/2022]
Abstract
In acute myeloid leukemia (AML), the heterogeneity of genetic and epigenetic characteristics makes treatment difficult. The prognosis for AML is therefore poor, and there is an urgent need for new treatments for this condition. Gemtuzumab ozogamicin (GO), the first antibody-drug conjugate (ADC), targets the CD33 antigen expressed in over 90% of AML cases. GO therefore has the potential to counter the heterogeneity of AML patients. However, a major clinical problem is that drug resistance to GO diminishes its effect over time. Here, we report that the inhibition of glycogen synthase kinase 3 (GSK3) alone overcomes several forms of GO resistance at concentrations without antileukemic effects. The GSK3 inhibitors tested significantly enhanced the cytotoxic effect of GO in AML cell lines. We elucidated four mechanisms of enhancement: (1) increased expression of CD33, the target antigen of GO; (2) activation of a lysosomal function essential for hydrolysis of the GO linker; (3) reduced expression of MDR1 that eliminates calicheamicin, the payload of GO; and (4) reduced expression of the anti-apoptotic factor Bcl-2. A similar combination effect was observed against patient-derived primary AML cells. Combining GO with GSK3 inhibitors may be efficacious in treating heterogeneous AML.
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Affiliation(s)
- Aki Inase
- Division of Bioresource Research and DevelopmentDepartment of Social/Community Medicine and Health ScienceKobe University Graduate School of MedicineKobeJapan,Division of Medical Oncology and HematologyDepartment of MedicineKobe University Graduate School of MedicineKobeJapan
| | - Yimamu Maimaitili
- Division of Medical Oncology and HematologyDepartment of MedicineKobe University Graduate School of MedicineKobeJapan
| | - Shiro Kimbara
- Division of Medical Oncology and HematologyDepartment of MedicineKobe University Graduate School of MedicineKobeJapan
| | - Yu Mizutani
- Division of Medical Oncology and HematologyDepartment of MedicineKobe University Graduate School of MedicineKobeJapan
| | - Yoshiharu Miyata
- Division of Bioresource Research and DevelopmentDepartment of Social/Community Medicine and Health ScienceKobe University Graduate School of MedicineKobeJapan,Division of Medical Oncology and HematologyDepartment of MedicineKobe University Graduate School of MedicineKobeJapan
| | - Shinya Ohata
- Division of Medical Oncology and HematologyDepartment of MedicineKobe University Graduate School of MedicineKobeJapan
| | | | - Akihito Kitao
- Division of Medical Oncology and HematologyDepartment of MedicineKobe University Graduate School of MedicineKobeJapan
| | - Rina Sakai
- Division of Medical Oncology and HematologyDepartment of MedicineKobe University Graduate School of MedicineKobeJapan
| | - Koji Kawaguchi
- Division of Medical Oncology and HematologyDepartment of MedicineKobe University Graduate School of MedicineKobeJapan,Department of Medical Oncology/HematologyKonan Medical CenterKobeJapan
| | - Ako Higashime
- Division of Medical Oncology and HematologyDepartment of MedicineKobe University Graduate School of MedicineKobeJapan
| | - Shigeki Nagao
- Division of Medical Oncology and HematologyDepartment of MedicineKobe University Graduate School of MedicineKobeJapan
| | - Keiji Kurata
- Division of Medical Oncology and HematologyDepartment of MedicineKobe University Graduate School of MedicineKobeJapan
| | - Hideaki Goto
- Division of Medical Oncology and HematologyDepartment of MedicineKobe University Graduate School of MedicineKobeJapan,Department of Hematology and OncologyKita‐harima Medical CenterOnoJapan
| | | | - Kimikazu Yakushijin
- Division of Medical Oncology and HematologyDepartment of MedicineKobe University Graduate School of MedicineKobeJapan
| | - Hironobu Minami
- Division of Medical Oncology and HematologyDepartment of MedicineKobe University Graduate School of MedicineKobeJapan,Cancer Center, Kobe University HospitalKobeJapan
| | - Hiroshi Matsuoka
- Division of Bioresource Research and DevelopmentDepartment of Social/Community Medicine and Health ScienceKobe University Graduate School of MedicineKobeJapan,Division of Medical Oncology and HematologyDepartment of MedicineKobe University Graduate School of MedicineKobeJapan
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14
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Small S, Oh TS, Platanias LC. Role of Biomarkers in the Management of Acute Myeloid Leukemia. Int J Mol Sci 2022; 23:ijms232314543. [PMID: 36498870 PMCID: PMC9741257 DOI: 10.3390/ijms232314543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 11/11/2022] [Accepted: 11/14/2022] [Indexed: 11/24/2022] Open
Abstract
Despite many recent advances in treatment options, acute myeloid leukemia (AML) still has a high mortality rate. One important issue in optimizing outcomes for AML patients lies in the limited ability to predict response to specific therapies, duration of response, and likelihood of relapse. With evolving genetic characterization and improving molecular definitions, the ability to predict outcomes and long-term prognosis is slowly improving. The majority of the currently used prognostic assessments relate to molecular and chromosomal abnormalities, as well as response to initial therapy. These risk categories, however, do not account for a large amount of the variability in AML. Laboratory techniques now utilized in the clinic extend beyond bone marrow morphology and single gene sequencing, to next-generation sequencing of large gene panels and multiparameter flow cytometry, among others. Other technologic advances, such as gene expression analysis, have yet to demonstrate enough predictive and prognostic power to be employed in clinical medicine outside of clinical trials, but may be incorporated into the clinic in the future. In this review, we discuss the utility of current biomarkers, and present novel biomarker techniques and strategies that are in development for AML patients. Measurable residual disease (MRD) is a powerful prognostic tool that is increasingly being incorporated into clinical practice, and there are some exciting emerging biomarker technologies that have the potential to improve prognostic power in AML. As AML continues to be a difficult-to-treat disease with poor outcomes in many subtypes, advances in biomarkers that lead to better treatment decisions are greatly needed.
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Affiliation(s)
- Sara Small
- Robert H. Lurie Comprehensive Cancer Center, Northwestern University, Chicago, IL 60611, USA
- Division of Hematology-Oncology, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
- Correspondence:
| | - Timothy S. Oh
- Division of Hospital Medicine, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Leonidas C. Platanias
- Robert H. Lurie Comprehensive Cancer Center, Northwestern University, Chicago, IL 60611, USA
- Division of Hematology-Oncology, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
- Department of Medicine, Jesse Brown Veterans Affairs Medical Center, Chicago, IL 60612, USA
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15
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Liu Z, Zhong L, Dan W, Chu X, Liu C, Luo X, Zhang Z, Lu Y, Wan P, Wang X, Liu B. miRNA-222-3p enhances the proliferation and suppresses the apoptosis of acute myeloid leukemia cells by targeting Axin2 and modulating the Wnt/β-catenin pathway. Biochem Biophys Res Commun 2022; 620:83-91. [DOI: 10.1016/j.bbrc.2022.06.054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Accepted: 06/17/2022] [Indexed: 11/29/2022]
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16
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Hao F, Sholy C, Wang C, Cao M, Kang X. The Role of T Cell Immunotherapy in Acute Myeloid Leukemia. Cells 2021; 10:cells10123376. [PMID: 34943884 PMCID: PMC8699747 DOI: 10.3390/cells10123376] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 11/26/2021] [Accepted: 11/29/2021] [Indexed: 02/07/2023] Open
Abstract
Acute myeloid leukemia (AML) is a heterogeneous disease associated with various alterations in T cell phenotype and function leading to an abnormal cell population, ultimately leading to immune exhaustion. However, restoration of T cell function allows for the execution of cytotoxic mechanisms against leukemic cells in AML patients. Therefore, long-term disease control, which requires multiple therapeutic approaches, includes those aimed at the re-establishment of cytotoxic T cell activity. AML treatments that harness the power of T lymphocytes against tumor cells have rapidly evolved over the last 3 to 5 years through various stages of preclinical and clinical development. These include tissue-infiltrated lymphocytes (TILs), bispecific antibodies, immune checkpoint inhibitors (ICIs), chimeric antigen receptor T (CAR-T) cell therapy, and tumor-specific T cell receptor gene-transduced T (TCR-T) cells. In this review, these T cell-based immunotherapies and the potential of TILs as a novel antileukemic therapy will be discussed.
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17
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Hermans SJ, Nero TL, Morton CJ, Gooi JH, Crespi GAN, Hancock NC, Gao C, Ishii K, Markulić J, Parker MW. Structural biology of cell surface receptors implicated in Alzheimer’s disease. Biophys Rev 2021; 14:233-255. [DOI: 10.1007/s12551-021-00903-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Accepted: 11/02/2021] [Indexed: 02/06/2023] Open
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18
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Lim J, Sari-Ak D, Bagga T. Siglecs as Therapeutic Targets in Cancer. BIOLOGY 2021; 10:1178. [PMID: 34827170 PMCID: PMC8615218 DOI: 10.3390/biology10111178] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 11/03/2021] [Accepted: 11/08/2021] [Indexed: 02/06/2023]
Abstract
Hypersialylation is a common post-translational modification of protein and lipids found on cancer cell surfaces, which participate in cell-cell interactions and in the regulation of immune responses. Sialic acids are a family of nine-carbon α-keto acids found at the outermost ends of glycans attached to cell surfaces. Given their locations on cell surfaces, tumor cells aberrantly overexpress sialic acids, which are recognized by Siglec receptors found on immune cells to mediate broad immunomodulatory signaling. Enhanced sialylation exposed on cancer cell surfaces is exemplified as "self-associated molecular pattern" (SAMP), which tricks Siglec receptors found on leukocytes to greatly down-regulate immune responsiveness, leading to tumor growth. In this review, we focused on all 15 human Siglecs (including Siglec XII), many of which still remain understudied. We also highlighted strategies that disrupt the course of Siglec-sialic acid interactions, such as antibody-based therapies and sialic acid mimetics leading to tumor cell depletion. Herein, we introduced the central roles of Siglecs in mediating pro-tumor immunity and discussed strategies that target these receptors, which could benefit improved cancer immunotherapy.
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Affiliation(s)
- Jackwee Lim
- Singapore Immunology Network, A*STAR, 8a Biomedical Grove, Singapore 138648, Singapore;
| | - Duygu Sari-Ak
- Department of Medical Biology, School of Medicine, University of Health Sciences, Istanbul 34668, Turkey;
| | - Tanaya Bagga
- Singapore Immunology Network, A*STAR, 8a Biomedical Grove, Singapore 138648, Singapore;
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19
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Mckertish CM, Kayser V. Advances and Limitations of Antibody Drug Conjugates for Cancer. Biomedicines 2021; 9:872. [PMID: 34440076 PMCID: PMC8389690 DOI: 10.3390/biomedicines9080872] [Citation(s) in RCA: 64] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2021] [Revised: 07/17/2021] [Accepted: 07/20/2021] [Indexed: 12/27/2022] Open
Abstract
The popularity of antibody drug conjugates (ADCs) has increased in recent years, mainly due to their unrivalled efficacy and specificity over chemotherapy agents. The success of the ADC is partly based on the stability and successful cleavage of selective linkers for the delivery of the payload. The current research focuses on overcoming intrinsic shortcomings that impact the successful development of ADCs. This review summarizes marketed and recently approved ADCs, compares the features of various linker designs and payloads commonly used for ADC conjugation, and outlines cancer specific ADCs that are currently in late-stage clinical trials for the treatment of cancer. In addition, it addresses the issues surrounding drug resistance and strategies to overcome resistance, the impact of a narrow therapeutic index on treatment outcomes, the impact of drug-antibody ratio (DAR) and hydrophobicity on ADC clearance and protein aggregation.
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Affiliation(s)
| | - Veysel Kayser
- Sydney School of Pharmacy, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2006, Australia;
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