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Mekala JR, Nalluri HP, Reddy PN, S B S, N S SK, G V S D SK, Dhiman R, Chamarthy S, Komaragiri RR, Manyam RR, Dirisala VR. Emerging trends and therapeutic applications of monoclonal antibodies. Gene 2024; 925:148607. [PMID: 38797505 DOI: 10.1016/j.gene.2024.148607] [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: 08/15/2023] [Revised: 04/02/2024] [Accepted: 05/21/2024] [Indexed: 05/29/2024]
Abstract
Monoclonal antibodies (mAbs) are being used to prevent, detect, and treat a broad spectrum of malignancies and infectious and autoimmune diseases. Over the past few years, the market for mAbs has grown exponentially. They have become a significant part of many pharmaceutical product lines, and more than 250 therapeutic mAbs are undergoing clinical trials. Ever since the advent of hybridoma technology, antibody-based therapeutics were realized using murine antibodies which further progressed into humanized and fully human antibodies, reducing the risk of immunogenicity. Some of the benefits of using mAbs over conventional drugs include a drastic reduction in the chances of adverse reactions, interactions between drugs, and targeting specific proteins. While antibodies are very efficient, their higher production costs impede the process of commercialization. However, their cost factor has been improved by developing biosimilar antibodies, which are affordable versions of therapeutic antibodies. Along with biosimilars, innovations in antibody engineering have helped to design bio-better antibodies with improved efficacy than the conventional ones. These novel mAb-based therapeutics are set to revolutionize existing drug therapies targeting a wide spectrum of diseases, thereby meeting several unmet medical needs. In the future, mAbs generated by applying next-generation sequencing (NGS) are expected to become a powerful tool in clinical therapeutics. This article describes the methods of mAb production, pre-clinical and clinical development of mAbs, approved indications targeted by mAbs, and novel developments in the field of mAb research.
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Affiliation(s)
- Janaki Ramaiah Mekala
- Department of Biotechnology, Koneru Lakshmaiah Education Foundation (KLEF), Vaddeswaram 522502, Guntur, Andhra Pradesh, INDIA.
| | - Hari P Nalluri
- Department of Biotechnology, Vignan's (Deemed to be) University, Guntur 522213, AP, India
| | - Prakash Narayana Reddy
- Department of Microbiology, Dr. V.S. Krishna Government College, Visakhapatnam 530013, India
| | - Sainath S B
- Department of Biotechnology, Vikrama Simhapuri University, Nellore 524320, AP, India
| | - Sampath Kumar N S
- Department of Biotechnology, Vignan's (Deemed to be) University, Guntur 522213, AP, India
| | - Sai Kiran G V S D
- Santhiram Medical College and General Hospital, Nandyal, Kurnool 518501, AP, India
| | - Rohan Dhiman
- Laboratory of Mycobacterial Immunology, Department of Life Sciences, National Institute of Technology Rourkela-769008, India
| | - Sahiti Chamarthy
- Department of Biotechnology, Koneru Lakshmaiah Education Foundation (KLEF), Vaddeswaram 522502, Guntur, Andhra Pradesh, INDIA
| | - Raghava Rao Komaragiri
- Department of CSE, Koneru Lakshmaiah Education Foundation (KLEF), Vaddeswaram 522302, Andhra Pradesh, INDIA
| | - Rajasekhar Reddy Manyam
- Amrita School of Computing, Amrita Vishwa Vidyapeetham, Amaravati Campus, Amaravati, Andhra Pradesh, India
| | - Vijaya R Dirisala
- Department of Biotechnology, Vignan's (Deemed to be) University, Guntur 522213, AP, India.
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Negishi S, Girsch JH, Siegler EL, Bezerra ED, Miyao K, Sakemura RL. Treatment strategies for relapse after CAR T-cell therapy in B cell lymphoma. Front Pediatr 2024; 11:1305657. [PMID: 38283399 PMCID: PMC10811220 DOI: 10.3389/fped.2023.1305657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Accepted: 12/29/2023] [Indexed: 01/30/2024] Open
Abstract
Clinical trials of anti-CD19 chimeric antigen receptor T (CART19) cell therapy have shown high overall response rates in patients with relapsed/refractory B-cell malignancies. CART19 cell therapy has been approved by the US Food and Drug Administration for patients who relapsed less than 12 months after initial therapy or who are refractory to first-line therapy. However, durable remission of CART19 cell therapy is still lacking, and 30%-60% of patients will eventually relapse after CART19 infusion. In general, the prognosis of patients who relapse after CART19 cell therapy is poor, and various strategies to treat this patient population have been investigated extensively. CART19 failures can be broadly categorized by the emergence of either CD19-positive or CD19-negative lymphoma cells. If CD19 expression is preserved on the lymphoma cells, a second infusion of CART19 cells or reactivation of previously infused CART19 cells with immune checkpoint inhibitors can be considered. When patients develop CD19-negative relapse, targeting different antigens (e.g., CD20 or CD22) with CAR T cells, investigational chemotherapies, or hematopoietic stem cell transplantation are potential treatment options. However, salvage therapies for relapsed large B-cell lymphoma after CART19 cell therapy have not been fully explored and are conducted based on clinicians' case-by-case decisions. In this review, we will focus on salvage therapies reported to date and discuss the management of relapsed/refractory large B-cell lymphomas after CART19 cell therapy.
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Affiliation(s)
- Shuto Negishi
- Department of Hematology and Oncology, Konan Kosei Hospital, Konan, Japan
| | - James H. Girsch
- T Cell Engineering, Mayo Clinic, Rochester, MN, United States
- Division of Hematology, Mayo Clinic, Rochester, MN, United States
- Mayo Clinic Graduate School of Biomedical Sciences, Rochester, MN, United States
- Department of Molecular Medicine, Mayo Clinic, Rochester, MN, United States
| | - Elizabeth L. Siegler
- T Cell Engineering, Mayo Clinic, Rochester, MN, United States
- Division of Hematology, Mayo Clinic, Rochester, MN, United States
| | - Evandro D. Bezerra
- Department of Hematology and Oncology, Ohio State University, Columbus, OH, United States
| | - Kotaro Miyao
- Department of Hematology and Oncology, Anjo Kosei Hospital, Anjo, Japan
| | - R. Leo Sakemura
- T Cell Engineering, Mayo Clinic, Rochester, MN, United States
- Division of Hematology, Mayo Clinic, Rochester, MN, United States
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Gulyak EL, Alferova VA, Korshun VA, Sapozhnikova KA. Introduction of Carbonyl Groups into Antibodies. Molecules 2023; 28:7890. [PMID: 38067618 PMCID: PMC10707781 DOI: 10.3390/molecules28237890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 11/26/2023] [Accepted: 11/29/2023] [Indexed: 12/18/2023] Open
Abstract
Antibodies and their derivatives (scFv, Fabs, etc.) represent a unique class of biomolecules that combine selectivity with the ability to target drug delivery. Currently, one of the most promising endeavors in this field is the development of molecular diagnostic tools and antibody-based therapeutic agents, including antibody-drug conjugates (ADCs). To meet this challenge, it is imperative to advance methods for modifying antibodies. A particularly promising strategy involves the introduction of carbonyl groups into the antibody that are amenable to further modification by biorthogonal reactions, namely aliphatic, aromatic, and α-oxo aldehydes, as well as aliphatic and aryl-alkyl ketones. In this review, we summarize the preparation methods and applications of site-specific antibody conjugates that are synthesized using this approach.
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Affiliation(s)
| | | | | | - Ksenia A. Sapozhnikova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Miklukho-Maklaya 16/10, 117997 Moscow, Russia; (E.L.G.); (V.A.A.); (V.A.K.)
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Song CH, Jeong M, In H, Kim JH, Lin CW, Han KH. Trends in the Development of Antibody-Drug Conjugates for Cancer Therapy. Antibodies (Basel) 2023; 12:72. [PMID: 37987250 PMCID: PMC10660735 DOI: 10.3390/antib12040072] [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: 09/14/2023] [Revised: 10/28/2023] [Accepted: 10/31/2023] [Indexed: 11/22/2023] Open
Abstract
In cancer treatment, the first-generation, cytotoxic drugs, though effective against cancer cells, also harmed healthy ones. The second-generation targeted cancer cells precisely to inhibit their growth. Enter the third-generation, consisting of immuno-oncology drugs, designed to combat drug resistance and bolster the immune system's defenses. These advanced therapies operate by obstructing the uncontrolled growth and spread of cancer cells through the body, ultimately eliminating them effectively. Within the arsenal of cancer treatment, monoclonal antibodies offer several advantages, including inducing cancer cell apoptosis, precise targeting, prolonged presence in the body, and minimal side effects. A recent development in cancer therapy is Antibody-Drug Conjugates (ADCs), initially developed in the mid-20th century. The second generation of ADCs addressed this issue through innovative antibody modification techniques, such as DAR regulation, amino acid substitutions, incorporation of non-natural amino acids, and enzymatic drug attachment. Currently, a third generation of ADCs is in development. This study presents an overview of 12 available ADCs, reviews 71 recent research papers, and analyzes 128 clinical trial reports. The overarching objective is to gain insights into the prevailing trends in ADC research and development, with a particular focus on emerging frontiers like potential targets, linkers, and drug payloads within the realm of cancer treatment.
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Affiliation(s)
- Chi Hun Song
- Department of Biological Sciences and Biotechnology, Hannam University, Daejeon 34054, Republic of Korea; (C.H.S.); (M.J.); (H.I.); (J.H.K.)
| | - Minchan Jeong
- Department of Biological Sciences and Biotechnology, Hannam University, Daejeon 34054, Republic of Korea; (C.H.S.); (M.J.); (H.I.); (J.H.K.)
| | - Hyukmin In
- Department of Biological Sciences and Biotechnology, Hannam University, Daejeon 34054, Republic of Korea; (C.H.S.); (M.J.); (H.I.); (J.H.K.)
| | - Ji Hoe Kim
- Department of Biological Sciences and Biotechnology, Hannam University, Daejeon 34054, Republic of Korea; (C.H.S.); (M.J.); (H.I.); (J.H.K.)
| | - Chih-Wei Lin
- Institute of Biochemistry and Molecular Biology, China Medical University, Taichung 406, Taiwan;
| | - Kyung Ho Han
- Department of Biological Sciences and Biotechnology, Hannam University, Daejeon 34054, Republic of Korea; (C.H.S.); (M.J.); (H.I.); (J.H.K.)
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McInturff EL, France SP, Leverett CA, Flick AC, Lindsey EA, Berritt S, Carney DW, DeForest JC, Ding HX, Fink SJ, Gibson TS, Gray K, Hubbell AK, Johnson AM, Liu Y, Mahapatra S, McAlpine IJ, Watson RB, O'Donnell CJ. Synthetic Approaches to the New Drugs Approved During 2021. J Med Chem 2023; 66:10150-10201. [PMID: 37528515 DOI: 10.1021/acs.jmedchem.3c00501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/03/2023]
Abstract
Each year, new drugs are introduced to the market, representing structures that have affinity for biological targets implicated in human diseases and conditions. These new chemical entities (NCEs), particularly small molecules and antibody-drug conjugates, provide insight into molecular recognition and serve as potential leads for the design of future medicines. This annual review is part of a continuing series highlighting the most likely process-scale synthetic approaches to 35 NCEs that were first approved anywhere in the world during 2021.
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Affiliation(s)
- Emma L McInturff
- Groton Laboratories, Pfizer Worldwide Research and Development, 445 Eastern Point Road, Groton, Connecticut 06340, United States
| | - Scott P France
- Process Research & Development, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Carolyn A Leverett
- Groton Laboratories, Pfizer Worldwide Research and Development, 445 Eastern Point Road, Groton, Connecticut 06340, United States
| | - Andrew C Flick
- Takeda Pharmaceuticals, 9625 Towne Centre Drive, San Diego, California 92121, United States
| | - Erick A Lindsey
- Takeda Pharmaceuticals, 9625 Towne Centre Drive, San Diego, California 92121, United States
| | - Simon Berritt
- Groton Laboratories, Pfizer Worldwide Research and Development, 445 Eastern Point Road, Groton, Connecticut 06340, United States
| | - Daniel W Carney
- Takeda Pharmaceuticals, 9625 Towne Centre Drive, San Diego, California 92121, United States
| | - Jacob C DeForest
- La Jolla Laboratories, Pfizer Worldwide Research and Development, 10777 Science Center Drive, San Diego, California 92121, United States
| | - Hong X Ding
- Pharmacodia (Beijing) Co. Ltd., Beijing, 100085, China
| | - Sarah J Fink
- Takeda Pharmaceuticals, 125 Binney Street, Cambridge, Massachusetts 02142, United States
| | - Tony S Gibson
- Takeda Pharmaceuticals, 9625 Towne Centre Drive, San Diego, California 92121, United States
| | - Kaitlyn Gray
- Groton Laboratories, Pfizer Worldwide Research and Development, 445 Eastern Point Road, Groton, Connecticut 06340, United States
| | - Aran K Hubbell
- Groton Laboratories, Pfizer Worldwide Research and Development, 445 Eastern Point Road, Groton, Connecticut 06340, United States
| | - Amber M Johnson
- Groton Laboratories, Pfizer Worldwide Research and Development, 445 Eastern Point Road, Groton, Connecticut 06340, United States
| | - Yiyang Liu
- Groton Laboratories, Pfizer Worldwide Research and Development, 445 Eastern Point Road, Groton, Connecticut 06340, United States
| | - Subham Mahapatra
- Groton Laboratories, Pfizer Worldwide Research and Development, 445 Eastern Point Road, Groton, Connecticut 06340, United States
| | - Indrawan J McAlpine
- Genesis Therapeutics, 11568 Sorrento Valley Road, Suite 8, San Diego, California 92121, United States
| | - Rebecca B Watson
- La Jolla Laboratories, Pfizer Worldwide Research and Development, 10777 Science Center Drive, San Diego, California 92121, United States
| | - Christopher J O'Donnell
- Groton Laboratories, Pfizer Worldwide Research and Development, 445 Eastern Point Road, Groton, Connecticut 06340, United States
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Aigbogun OP, Phenix CP, Krol ES, Price EW. The Chemistry of Creating Chemically Programmed Antibodies (cPAbs): Site-Specific Bioconjugation of Small Molecules. Mol Pharm 2023; 20:853-874. [PMID: 36696533 DOI: 10.1021/acs.molpharmaceut.2c00821] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Small-molecule drugs have been employed for years as therapeutics in the pharmaceutical industry. However, small-molecule drugs typically have short in vivo half-lives which is one of the largest impediments to the success of many potentially valuable pharmacologically active small molecules. The undesirable pharmacokinetics and pharmacology associated with some small molecules have led to the development of a new class of bioconjugates known as chemically programmed antibodies (cPAbs). cPAbs are bioconjugates in which antibodies are used to augment small molecules with effector functions and prolonged pharmacokinetic profiles, where the pharmacophore of the small molecule is harnessed for target binding and therefore biological targeting. Many different small molecules can be conjugated to large proteins such as full monoclonal antibodies (IgG), fragment crystallizable regions (Fc), or fragment antigen binding regions (Fab). In order to successfully and site-specifically conjugate small molecules to any class of antibodies (IgG, Fc, or Fab), the molecules must be derivatized with a functional group for ease of conjugation without altering the pharmacology of the small molecules. In this Review, we summarize the different synthetic or biological methods that have been employed to produce cPAbs. These unique chemistries have potential to be applied to other fields of antibody modification such as antibody drug conjugates, radioimmunoconjugates, and fluorophore-tagged antibodies.
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Affiliation(s)
- Omozojie P Aigbogun
- Department of Chemistry, University of Saskatchewan, 110 Science Place, Saskatoon, S7N-5C9 Saskatchewan, Canada
| | - Christopher P Phenix
- Department of Chemistry, University of Saskatchewan, 110 Science Place, Saskatoon, S7N-5C9 Saskatchewan, Canada
| | - Ed S Krol
- Drug Discovery and Development Research Group, College of Pharmacy and Nutrition, University of Saskatchewan, 107 Wiggins Road, Saskatoon, S7N-5E5 Saskatchewan, Canada
| | - Eric W Price
- Department of Chemistry, University of Saskatchewan, 110 Science Place, Saskatoon, S7N-5C9 Saskatchewan, Canada
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Gu H, He J, Li Y, Mi D, Guan T, Guo W, Liu B, Chen Y. B-cell Lymphoma 6 Inhibitors: Current Advances and Prospects of Drug Development for Diffuse Large B-cell Lymphomas. J Med Chem 2022; 65:15559-15583. [PMID: 36441945 DOI: 10.1021/acs.jmedchem.2c01433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
B-cell lymphoma 6 (BCL6) is a transcriptional repressor that regulates the differentiation of B lymphocytes and mediates the formation of germinal centers (GCs) by recruiting corepressors through the BTB domain of BCL6. Physiological processes regulated by BCL6 involve cell activation, differentiation, DNA damage, and apoptosis. BCL6 is highly expressed when the gene is mutated, leading to the malignant proliferation of cells and drives tumorigenesis. BCL6 overexpression is closely correlated with tumorigenesis in diffuse large B-cell lymphoma (DLBCL) and other lymphomas, and BCL6 inhibitors can effectively inhibit some lymphomas and overcome resistance. Therefore, targeting BCL6 might be a promising therapeutic strategy for treating lymphomas. Herein, we comprehensively review the latest development of BCL6 inhibitors in diffuse large B-cell lymphoma and discuss the overview of the pharmacophores of BCL6 inhibitors and their efficacies in vitro and in vivo. Additionally, the current advances in BCL6 degraders are provided.
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Affiliation(s)
- Haijun Gu
- Shanghai Frontiers Science Center of Genome Editing and Cell Therapy, Shanghai Key Laboratory of Regulatory Biology, The Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai 200241, China
| | - Jia He
- Shanghai Frontiers Science Center of Genome Editing and Cell Therapy, Shanghai Key Laboratory of Regulatory Biology, The Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai 200241, China
| | - Yuzhan Li
- Shanghai Frontiers Science Center of Genome Editing and Cell Therapy, Shanghai Key Laboratory of Regulatory Biology, The Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai 200241, China
| | - Dazhao Mi
- Shanghai Frontiers Science Center of Genome Editing and Cell Therapy, Shanghai Key Laboratory of Regulatory Biology, The Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai 200241, China
| | - Tian Guan
- Shanghai Frontiers Science Center of Genome Editing and Cell Therapy, Shanghai Key Laboratory of Regulatory Biology, The Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai 200241, China
| | - Weikai Guo
- Shanghai Frontiers Science Center of Genome Editing and Cell Therapy, Shanghai Key Laboratory of Regulatory Biology, The Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai 200241, China
| | - Bo Liu
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
| | - Yihua Chen
- Shanghai Frontiers Science Center of Genome Editing and Cell Therapy, Shanghai Key Laboratory of Regulatory Biology, The Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai 200241, China
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Tannoury M, Garnier D, Susin SA, Bauvois B. Current Status of Novel Agents for the Treatment of B Cell Malignancies: What's Coming Next? Cancers (Basel) 2022; 14:6026. [PMID: 36551511 PMCID: PMC9775488 DOI: 10.3390/cancers14246026] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 11/29/2022] [Accepted: 12/03/2022] [Indexed: 12/13/2022] Open
Abstract
Resistance to death is one of the hallmarks of human B cell malignancies and often contributes to the lack of a lasting response to today's commonly used treatments. Drug discovery approaches designed to activate the death machinery have generated a large number of inhibitors of anti-apoptotic proteins from the B-cell lymphoma/leukemia 2 family and the B-cell receptor (BCR) signaling pathway. Orally administered small-molecule inhibitors of Bcl-2 protein and BCR partners (e.g., Bruton's tyrosine kinase and phosphatidylinositol-3 kinase) have already been included (as monotherapies or combination therapies) in the standard of care for selected B cell malignancies. Agonistic monoclonal antibodies and their derivatives (antibody-drug conjugates, antibody-radioisotope conjugates, bispecific T cell engagers, and chimeric antigen receptor-modified T cells) targeting tumor-associated antigens (TAAs, such as CD19, CD20, CD22, and CD38) are indicated for treatment (as monotherapies or combination therapies) of patients with B cell tumors. However, given that some patients are either refractory to current therapies or relapse after treatment, novel therapeutic strategies are needed. Here, we review current strategies for managing B cell malignancies, with a focus on the ongoing clinical development of more effective, selective drugs targeting these molecules, as well as other TAAs and signaling proteins. The observed impact of metabolic reprogramming on B cell pathophysiology highlights the promise of targeting metabolic checkpoints in the treatment of these disorders.
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Affiliation(s)
| | | | | | - Brigitte Bauvois
- Centre de Recherche des Cordeliers, Sorbonne Université, Université Paris Cité, Inserm, Cell Death and Drug Resistance in Lymphoproliferative Disorders Team, F-75006 Paris, France
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Pander G, Uhl P, Kühl N, Haberkorn U, Anderl J, Mier W. Antibody-drug conjugates: What drives their progress? Drug Discov Today 2022; 27:103311. [PMID: 35787480 DOI: 10.1016/j.drudis.2022.06.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 06/01/2022] [Accepted: 06/29/2022] [Indexed: 12/15/2022]
Abstract
Antibody-drug conjugates (ADCs) are on the brink of widespread use for the targeted treatment of cancer. ADCs manage the toxicity of drugs with unacceptable narrow therapeutic windows by guiding highly toxic compounds to the target cells, thereby sparing healthy cells. In this review, we describe approved ADCs and discuss their modes of action, together with medicinal chemical aspects, to evaluate the potential for improvement and to combat tumor-acquired resistance. A recent research focus has centered on the stimulation of immune responses to induce immunogenic cell death and the influence on the tumor microenvironment to enhance bystander effects.
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Affiliation(s)
- Giulia Pander
- Heidelberg University Hospital, Department of Nuclear Medicine, INF 400, 69120 Heidelberg, Germany
| | - Philipp Uhl
- Heidelberg University Hospital, Department of Nuclear Medicine, INF 400, 69120 Heidelberg, Germany
| | - Nikos Kühl
- Heidelberg University, Institute of Pharmacy and Molecular Biotechnology, INF 364, 69120 Heidelberg, Germany
| | - Uwe Haberkorn
- Heidelberg University Hospital, Department of Nuclear Medicine, INF 400, 69120 Heidelberg, Germany
| | - Jan Anderl
- Merck KGaA, Antibody Drug Conjugates & Targeted NBE Therapeutics, Frankfurter Strasse 250, 64293 Darmstadt, Germany
| | - Walter Mier
- Heidelberg University Hospital, Department of Nuclear Medicine, INF 400, 69120 Heidelberg, Germany.
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