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Liu X, Cheng Y, Mu Y, Zhang Z, Tian D, Liu Y, Hu X, Wen T. Diverse drug delivery systems for the enhancement of cancer immunotherapy: an overview. Front Immunol 2024; 15:1328145. [PMID: 38298192 PMCID: PMC10828056 DOI: 10.3389/fimmu.2024.1328145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Accepted: 01/03/2024] [Indexed: 02/02/2024] Open
Abstract
Despite the clear benefits demonstrated by immunotherapy, there is still an inevitable off-target effect resulting in serious adverse immune reactions. In recent years, the research and development of Drug Delivery System (DDS) has received increased prominence. In decades of development, DDS has demonstrated the ability to deliver drugs in a precisely targeted manner to mitigate side effects and has the advantages of flexible control of drug release, improved pharmacokinetics, and drug distribution. Therefore, we consider that combining cancer immunotherapy with DDS can enhance the anti-tumor ability. In this paper, we provide an overview of the latest drug delivery strategies in cancer immunotherapy and briefly introduce the characteristics of DDS based on nano-carriers (liposomes, polymer nano-micelles, mesoporous silica, extracellular vesicles, etc.) and coupling technology (ADCs, PDCs and targeted protein degradation). Our aim is to show readers a variety of drug delivery platforms under different immune mechanisms, and analyze their advantages and limitations, to provide more superior and accurate targeting strategies for cancer immunotherapy.
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Affiliation(s)
- Xu Liu
- Department of Respiratory and Infectious Disease of Geriatrics, The First Hospital of China Medical University, Shenyang, Liaoning, China
| | - Yang Cheng
- Department of Respiratory and Infectious Disease of Geriatrics, The First Hospital of China Medical University, Shenyang, Liaoning, China
| | - Yao Mu
- Department of Respiratory and Infectious Disease of Geriatrics, The First Hospital of China Medical University, Shenyang, Liaoning, China
| | | | - Dan Tian
- Department of Thoracic Surgery, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Yunpeng Liu
- Key Laboratory of Anticancer Drugs and Biotherapy of Liaoning Province, The First Hospital of China Medical University, Shenyang, Liaoning, China
- Department of Medical Oncology, The First Hospital of China Medical University, Shenyang, Liaoning, China
- Liaoning Province Clinical Research Center for Cancer, The First Hospital of China Medical University, Shenyang, Liaoning, China
- Clinical Cancer Treatment and Research Center of Shenyang, The First Hospital of China Medical University, Shenyang, Liaoning, China
| | - Xuejun Hu
- Department of Respiratory and Infectious Disease of Geriatrics, The First Hospital of China Medical University, Shenyang, Liaoning, China
| | - Ti Wen
- Key Laboratory of Anticancer Drugs and Biotherapy of Liaoning Province, The First Hospital of China Medical University, Shenyang, Liaoning, China
- Department of Medical Oncology, The First Hospital of China Medical University, Shenyang, Liaoning, China
- Liaoning Province Clinical Research Center for Cancer, The First Hospital of China Medical University, Shenyang, Liaoning, China
- Clinical Cancer Treatment and Research Center of Shenyang, The First Hospital of China Medical University, Shenyang, Liaoning, China
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2
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Shikalov A, Koman I, Kogan NM. Targeted Glioma Therapy-Clinical Trials and Future Directions. Pharmaceutics 2024; 16:100. [PMID: 38258110 PMCID: PMC10820492 DOI: 10.3390/pharmaceutics16010100] [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: 11/28/2023] [Revised: 01/05/2024] [Accepted: 01/08/2024] [Indexed: 01/24/2024] Open
Abstract
Glioblastoma multiforme (GBM) is the most common type of glioma, with a median survival of 14.6 months post-diagnosis. Understanding the molecular profile of such tumors allowed the development of specific targeted therapies toward GBM, with a major role attributed to tyrosine kinase receptor inhibitors and immune checkpoint inhibitors. Targeted therapeutics are drugs that work by specific binding to GBM-specific or overexpressed markers on the tumor cellular surface and therefore contain a recognition moiety linked to a cytotoxic agent, which produces an antiproliferative effect. In this review, we have summarized the available information on the targeted therapeutics used in clinical trials of GBM and summarized current obstacles and advances in targeted therapy concerning specific targets present in GBM tumor cells, outlined efficacy endpoints for major classes of investigational drugs, and discussed promising strategies towards an increase in drug efficacy in GBM.
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Affiliation(s)
| | | | - Natalya M. Kogan
- Department of Molecular Biology, Institute of Personalized and Translational Medicine, Ariel University, Ariel 40700, Israel; (A.S.); (I.K.)
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3
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Lahooti B, Akwii RG, Zahra FT, Sajib MS, Lamprou M, Alobaida A, Lionakis MS, Mattheolabakis G, Mikelis CM. Targeting endothelial permeability in the EPR effect. J Control Release 2023; 361:212-235. [PMID: 37517543 DOI: 10.1016/j.jconrel.2023.07.039] [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: 03/13/2023] [Revised: 07/19/2023] [Accepted: 07/23/2023] [Indexed: 08/01/2023]
Abstract
The characteristics of the primary tumor blood vessels and the tumor microenvironment drive the enhanced permeability and retention (EPR) effect, which confers an advantage towards enhanced delivery of anti-cancer nanomedicine and has shown beneficial effects in preclinical models. Increased vascular permeability is a landmark feature of the tumor vessels and an important driver of the EPR. The main focus of this review is the endothelial regulation of vascular permeability. We discuss current challenges of targeting vascular permeability towards clinical translation and summarize the structural components and mechanisms of endothelial permeability, the principal mediators and signaling players, the targeted approaches that have been used and their outcomes to date. We also critically discuss the effects of the tumor-infiltrating immune cells, their interplay with the tumor vessels and the impact of immune responses on nanomedicine delivery, the impact of anti-angiogenic and tumor-stroma targeting approaches, and desirable nanoparticle design approaches for greater translational benefit.
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Affiliation(s)
- Behnaz Lahooti
- Department of Pharmaceutical Sciences, School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, TX 79106, USA
| | - Racheal G Akwii
- Department of Pharmaceutical Sciences, School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, TX 79106, USA
| | - Fatema Tuz Zahra
- Department of Pharmaceutical Sciences, School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, TX 79106, USA
| | - Md Sanaullah Sajib
- Department of Pharmaceutical Sciences, School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, TX 79106, USA
| | - Margarita Lamprou
- Laboratory of Molecular Pharmacology, Department of Pharmacy, University of Patras, Patras 26504, Greece
| | - Ahmed Alobaida
- Department of Pharmaceutics, College of Pharmacy, University of Ha'il, Ha'il 81442, Saudi Arabia
| | - Michail S Lionakis
- Fungal Pathogenesis Section, Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - George Mattheolabakis
- School of Basic Pharmaceutical and Toxicological Sciences, College of Pharmacy, University of Louisiana at Monroe, Monroe, LA 71201, USA.
| | - Constantinos M Mikelis
- Department of Pharmaceutical Sciences, School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, TX 79106, USA; Laboratory of Molecular Pharmacology, Department of Pharmacy, University of Patras, Patras 26504, Greece.
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4
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Fuchigami H, Matsumura Y. Characterization of antibody clones that bind exclusively to insoluble fibrin. Blood Coagul Fibrinolysis 2023; 34:20-27. [PMID: 36239546 PMCID: PMC9799036 DOI: 10.1097/mbc.0000000000001171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 09/06/2022] [Accepted: 09/19/2022] [Indexed: 01/07/2023]
Abstract
Previously, we established an antibody, termed 102-10, which recognizes insoluble fibrin exclusively, unlike the previously established anti-insoluble fibrin antibodies that also cross-reacted with fibrinogen. We established that the epitope of this antibody is on the β chain that lines an indented structure that becomes exposed only when insoluble fibrin is formed. The amino acid sequence of the epitope is completely conserved from mouse to humans. This study attempted to determine the most suitable insoluble fibrin clone for future diagnostic and therapeutic development. Binding kinetics and properties of antibodies were evaluated by the surface plasmon resonance analysis (SPR) and ELISA among 1101, 99, 443, and 102-10. Immunohistochemical staining for mouse and human pancreatic cancer tissues were also performed. For frozen sections, visually appropriate staining results were observed at an antibody concentration of 1-10 μg/ml, while for paraffin sections, 10 μg/ml was required. From immunohistochemistry and ELISA analyses, clone 99 and clone 1101 showed almost no nonspecific binding in normal pancreatic tissues. Hybridoma production for 1101 yielded more antibodies than that of 99 and demonstrated good long-term stability. It was, therefore, concluded that clone 1101 would be useful for future clinical development as well as basic research.
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Affiliation(s)
- Hirobumi Fuchigami
- Division of Developmental Therapeutics, Exploratory Oncology Research & Clinical Trial Center, National Cancer Center, Chiba
| | - Yasuhiro Matsumura
- Division of Developmental Therapeutics, Exploratory Oncology Research & Clinical Trial Center, National Cancer Center, Chiba
- Department of Immune Medicine, National Cancer Center Research Institute, National Cancer Center
- Research Division, RIN Institute Inc., Tokyo, Japan
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5
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Kimura A, Arai T, Ueno M, Oyama K, Yu H, Yamashita S, Otome Y, Taguchi M. Synthesis of Small Peptide Nanogels Using Radiation Crosslinking as a Platform for Nano-Imaging Agents for Pancreatic Cancer Diagnosis. Pharmaceutics 2022; 14:2400. [PMID: 36365217 PMCID: PMC9696042 DOI: 10.3390/pharmaceutics14112400] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 11/01/2022] [Accepted: 11/04/2022] [Indexed: 08/22/2023] Open
Abstract
Nanoparticle-based drug delivery systems (DDS) have been developed as effective diagnostic and low-dose imaging agents. Nano-imaging agents with particles greater than 100 nm are difficult to accumulate in pancreatic cancer cells, making high-intensity imaging of pancreatic cancer challenging. Peptides composed of histidine and glycine were designed and synthesized. Additionally, aqueous peptide solutions were irradiated with γ-rays to produce peptide nanogels with an average size of 25-53 nm. The mechanisms underlying radiation-mediated peptide crosslinking were investigated by simulating peptide particle formation based on rate constants. The rate constants for reactions between peptides and reactive species produced by water radiolysis were measured using pulse radiolysis. HGGGHGGGH (H9, H-histidine; G-glycine) particles exhibited a smaller size, as well as high formation yield, stability, and biodegradability. These particles were labeled with fluorescent dye to change their negative surface potential and enhance their accumulation in pancreatic cancer cells. Fluorescent-labeled H9 particles accumulated in PANC1 human pancreatic cancer cells, demonstrating that these particles are effective nano-imaging agents for intractable cancers.
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Affiliation(s)
- Atsushi Kimura
- Takasaki Advanced Radiation Research Institute (TARRI), National Institutes for Quantum Science and Technology (QST), 1233 Watanuki-Machi, Takasaki 370-1207, Gunma, Japan
| | - Tadashi Arai
- Takasaki Advanced Radiation Research Institute (TARRI), National Institutes for Quantum Science and Technology (QST), 1233 Watanuki-Machi, Takasaki 370-1207, Gunma, Japan
- Graduate School of Science and Technology, Gunma University, 1-5-1 Tenjintyo, Kiryu 376-8515, Gunma, Japan
| | - Miho Ueno
- Takasaki Advanced Radiation Research Institute (TARRI), National Institutes for Quantum Science and Technology (QST), 1233 Watanuki-Machi, Takasaki 370-1207, Gunma, Japan
- Graduate School of Science and Technology, Gunma University, 1-5-1 Tenjintyo, Kiryu 376-8515, Gunma, Japan
| | - Kotaro Oyama
- Takasaki Advanced Radiation Research Institute (TARRI), National Institutes for Quantum Science and Technology (QST), 1233 Watanuki-Machi, Takasaki 370-1207, Gunma, Japan
| | - Hao Yu
- Takasaki Advanced Radiation Research Institute (TARRI), National Institutes for Quantum Science and Technology (QST), 1233 Watanuki-Machi, Takasaki 370-1207, Gunma, Japan
- Nuclear Professional School, School of Engineering, The University of Tokyo, 2-22 Shirakata-Shirane, Tokai-mura, Naka-gun 319-1188, Ibaraki, Japan
| | - Shinichi Yamashita
- Nuclear Professional School, School of Engineering, The University of Tokyo, 2-22 Shirakata-Shirane, Tokai-mura, Naka-gun 319-1188, Ibaraki, Japan
| | - Yudai Otome
- Takasaki Advanced Radiation Research Institute (TARRI), National Institutes for Quantum Science and Technology (QST), 1233 Watanuki-Machi, Takasaki 370-1207, Gunma, Japan
- Graduate School of Science and Technology, Gunma University, 1-5-1 Tenjintyo, Kiryu 376-8515, Gunma, Japan
| | - Mitsumasa Taguchi
- Takasaki Advanced Radiation Research Institute (TARRI), National Institutes for Quantum Science and Technology (QST), 1233 Watanuki-Machi, Takasaki 370-1207, Gunma, Japan
- Graduate School of Science and Technology, Gunma University, 1-5-1 Tenjintyo, Kiryu 376-8515, Gunma, Japan
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6
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Matsumura Y. 35 years of discussions with Prof. Maeda on the EPR effect and future directions. J Control Release 2022; 348:966-969. [PMID: 35752253 DOI: 10.1016/j.jconrel.2022.06.035] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 06/06/2022] [Accepted: 06/20/2022] [Indexed: 11/29/2022]
Abstract
In May 2021, 35 years after first announcing the enhanced permeability and retention (EPR) effect, Dr. Maeda passed away. As a theoretical pillar of high molecular weight drug delivery systems (DDS) with high biocompatibility, the EPR effect has been proven worldwide in experimental mouse models. However, in clinical solid tumors, awareness of the EPR effect is insufficient, and more importantly, DDS has not become the mainstream cancer treatment. Both Dr. Maeda and I were acutely aware of this, and for 35 years, we discussed what to do about it and strived to make up for the inadequacies of the EPR effect by employing different strategies. Dr. Maeda came up with ways to use tumor vascular permeability more effectively and to apply oxidative stress to tumor cells. I proposed cancer stromal targeting (CAST) therapy using the anti-insoluble fibrin antibody conjugated with an anticancer agent in order to overcome the insufficiency of the EPR effect in clinical solid cancers, which possess abundant stromal tissue. Clinical cancers are surrounded by an abundant stroma and survive even under hypoxia and malnutrition due to this stromal barrier. Cancer cells become resistant to any external attack, including with anticancer drugs and radiation. While it goes without saying that EPR effects are important in clinical solid cancer strategies, DDSs that offer both accumulation and even distribution in solid cancers are also required.
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Affiliation(s)
- Yasuhiro Matsumura
- Former President of Japan Society of Drug Delivery System, 5-3-13, Otsuka, Bunkyo-ku, Tokyo, 112-0012, Japan, Visiting Scientist, Department of Immune Medicine, National Cancer Center Research Institute 5-1-1, Tsukiji, Chuo-ku, Tokyo 104-0045, Japan.
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7
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Jin Y, Edalatian Zakeri S, Bahal R, Wiemer AJ. New Technologies Bloom Together for Bettering Cancer Drug Conjugates. Pharmacol Rev 2022; 74:680-711. [PMID: 35710136 PMCID: PMC9553120 DOI: 10.1124/pharmrev.121.000499] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Drug conjugates, including antibody-drug conjugates, are a step toward realizing Paul Ehrlich's idea from over 100 years ago of a "magic bullet" for cancer treatment. Through balancing selective targeting molecules with highly potent payloads, drug conjugates can target specific tumor microenvironments and kill tumor cells. A drug conjugate consists of three parts: a targeting agent, a linker, and a payload. In some conjugates, monoclonal antibodies act as the targeting agent, but new strategies for targeting include antibody derivatives, peptides, and even small molecules. Linkers are responsible for connecting the payload to the targeting agent. Payloads impact vital cellular processes to kill tumor cells. At present, there are 12 antibody-drug conjugates on the market for different types of cancers. Research on drug conjugates is increasing year by year to solve problems encountered in conjugate design, such as tumor heterogeneity, poor circulation, low drug loading, low tumor uptake, and heterogenous expression of target antigens. This review highlights some important preclinical research on drug conjugates in recent years. We focus on three significant areas: improvement of antibody-drug conjugates, identification of new conjugate targets, and development of new types of drug conjugates, including nanotechnology. We close by highlighting the critical barriers to clinical translation and the open questions going forward. SIGNIFICANCE STATEMENT: The development of anticancer drug conjugates is now focused in three broad areas: improvements to existing antibody drug conjugates, identification of new targets, and development of new conjugate forms. This article focuses on the exciting preclinical studies in these three areas and advances in the technology that improves preclinical development.
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Affiliation(s)
- Yiming Jin
- Department of Pharmaceutical Sciences, University of Connecticut, Storrs, Connecticut
| | | | - Raman Bahal
- Department of Pharmaceutical Sciences, University of Connecticut, Storrs, Connecticut
| | - Andrew J Wiemer
- Department of Pharmaceutical Sciences, University of Connecticut, Storrs, Connecticut
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8
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Jin Y, Schladetsch MA, Huang X, Balunas MJ, Wiemer AJ. Stepping forward in antibody-drug conjugate development. Pharmacol Ther 2022; 229:107917. [PMID: 34171334 PMCID: PMC8702582 DOI: 10.1016/j.pharmthera.2021.107917] [Citation(s) in RCA: 81] [Impact Index Per Article: 40.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 05/26/2021] [Accepted: 05/27/2021] [Indexed: 01/03/2023]
Abstract
Antibody-drug conjugates (ADCs) are cancer therapeutic agents comprised of an antibody, a linker and a small-molecule payload. ADCs use the specificity of the antibody to target the toxic payload to tumor cells. After intravenous administration, ADCs enter circulation, distribute to tumor tissues and bind to the tumor surface antigen. The antigen then undergoes endocytosis to internalize the ADC into tumor cells, where it is transported to lysosomes to release the payload. The released toxic payloads can induce apoptosis through DNA damage or microtubule inhibition and can kill surrounding cancer cells through the bystander effect. The first ADC drug was approved by the United States Food and Drug Administration (FDA) in 2000, but the following decade saw no new approved ADC drugs. From 2011 to 2018, four ADC drugs were approved, while in 2019 and 2020 five more ADCs entered the market. This demonstrates an increasing trend for the clinical development of ADCs. This review summarizes the recent clinical research, with a specific focus on how the in vivo processing of ADCs influences their design. We aim to provide comprehensive information about current ADCs to facilitate future development.
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Affiliation(s)
- Yiming Jin
- Division of Medicinal Chemistry, Department of Pharmaceutical Sciences, University of Connecticut, Storrs, CT 06269, USA
| | - Megan A Schladetsch
- Division of Medicinal Chemistry, Department of Pharmaceutical Sciences, University of Connecticut, Storrs, CT 06269, USA
| | - Xueting Huang
- Division of Medicinal Chemistry, Department of Pharmaceutical Sciences, University of Connecticut, Storrs, CT 06269, USA
| | - Marcy J Balunas
- Division of Medicinal Chemistry, Department of Pharmaceutical Sciences, University of Connecticut, Storrs, CT 06269, USA
| | - Andrew J Wiemer
- Division of Medicinal Chemistry, Department of Pharmaceutical Sciences, University of Connecticut, Storrs, CT 06269, USA; Institute for Systems Genomics, University of Connecticut, Storrs, CT 06269, USA.
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9
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Ashman N, Bargh JD, Spring DR. Non-internalising antibody–drug conjugates. Chem Soc Rev 2022; 51:9182-9202. [DOI: 10.1039/d2cs00446a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
This review introduces non-internalising Antibody–Drug Conjugates (ADCs), highlighting the linker chemistry that enables extracellular payload release.
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Affiliation(s)
- Nicola Ashman
- Yusuf Hamied Department of Chemistry University of Cambridge Lensfield Road, Cambridge, CB2 1EW, UK
| | - Jonathan D. Bargh
- Medicinal Chemistry, Research and Early Development Cardiovascular, Renal and Metabolism, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - David R. Spring
- Yusuf Hamied Department of Chemistry University of Cambridge Lensfield Road, Cambridge, CB2 1EW, UK
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10
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Al Ojaimi Y, Blin T, Lamamy J, Gracia M, Pitiot A, Denevault-Sabourin C, Joubert N, Pouget JP, Gouilleux-Gruart V, Heuzé-Vourc'h N, Lanznaster D, Poty S, Sécher T. Therapeutic antibodies - natural and pathological barriers and strategies to overcome them. Pharmacol Ther 2021; 233:108022. [PMID: 34687769 PMCID: PMC8527648 DOI: 10.1016/j.pharmthera.2021.108022] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 10/11/2021] [Accepted: 10/12/2021] [Indexed: 02/06/2023]
Abstract
Antibody-based therapeutics have become a major class of therapeutics with over 120 recombinant antibodies approved or under review in the EU or US. This therapeutic class has experienced a remarkable expansion with an expected acceleration in 2021-2022 due to the extraordinary global response to SARS-CoV2 pandemic and the public disclosure of over a hundred anti-SARS-CoV2 antibodies. Mainly delivered intravenously, alternative delivery routes have emerged to improve antibody therapeutic index and patient comfort. A major hurdle for antibody delivery and efficacy as well as the development of alternative administration routes, is to understand the different natural and pathological barriers that antibodies face as soon as they enter the body up to the moment they bind to their target antigen. In this review, we discuss the well-known and more under-investigated extracellular and cellular barriers faced by antibodies. We also discuss some of the strategies developed in the recent years to overcome these barriers and increase antibody delivery to its site of action. A better understanding of the biological barriers that antibodies have to face will allow the optimization of antibody delivery near its target. This opens the way to the development of improved therapy with less systemic side effects and increased patients' adherence to the treatment.
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Affiliation(s)
- Yara Al Ojaimi
- UMR 1253, iBrain, Inserm, 37000 Tours, France; University of Tours, 37000 Tours, France
| | - Timothée Blin
- University of Tours, 37000 Tours, France; UMR 1100, CEPR, Inserm, 37000 Tours, France
| | - Juliette Lamamy
- University of Tours, 37000 Tours, France; GICC, EA7501, 37000 Tours, France
| | - Matthieu Gracia
- Institut de Recherche en Cancérologie de Montpellier (IRCM), Inserm U1194, Université de Montpellier, Institut Régional du Cancer de Montpellier (ICM), Montpellier F-34298, France
| | - Aubin Pitiot
- University of Tours, 37000 Tours, France; UMR 1100, CEPR, Inserm, 37000 Tours, France
| | | | - Nicolas Joubert
- University of Tours, 37000 Tours, France; GICC, EA7501, 37000 Tours, France
| | - Jean-Pierre Pouget
- Institut de Recherche en Cancérologie de Montpellier (IRCM), Inserm U1194, Université de Montpellier, Institut Régional du Cancer de Montpellier (ICM), Montpellier F-34298, France
| | | | | | - Débora Lanznaster
- UMR 1253, iBrain, Inserm, 37000 Tours, France; University of Tours, 37000 Tours, France
| | - Sophie Poty
- Institut de Recherche en Cancérologie de Montpellier (IRCM), Inserm U1194, Université de Montpellier, Institut Régional du Cancer de Montpellier (ICM), Montpellier F-34298, France
| | - Thomas Sécher
- University of Tours, 37000 Tours, France; UMR 1100, CEPR, Inserm, 37000 Tours, France
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11
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Javaid F, Pilotti C, Camilli C, Kallenberg D, Bahou C, Blackburn J, R Baker J, Greenwood J, Moss SE, Chudasama V. Leucine-rich alpha-2-glycoprotein 1 (LRG1) as a novel ADC target. RSC Chem Biol 2021; 2:1206-1220. [PMID: 34458833 PMCID: PMC8341842 DOI: 10.1039/d1cb00104c] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Accepted: 05/27/2021] [Indexed: 12/20/2022] Open
Abstract
Leucine-rich alpha-2-glycoprotein 1 (LRG1) is present abundantly in the microenvironment of many tumours where it contributes to vascular dysfunction, which impedes the delivery of therapeutics. In this work we demonstrate that LRG1 is predominantly a non-internalising protein. We report the development of a novel antibody-drug conjugate (ADC) comprising the anti-LRG1 hinge-stabilised IgG4 monoclonal antibody Magacizumab coupled to the anti-mitotic payload monomethyl auristatin E (MMAE) via a cleavable dipeptide linker using the site-selective disulfide rebridging dibromopyridazinedione (diBrPD) scaffold. It is demonstrated that this ADC retains binding post-modification, is stable in serum and effective in in vitro cell studies. We show that the extracellular LRG1-targeting ADC provides an increase in survival in vivo when compared against antibody alone and similar anti-tumour activity when compared against standard chemotherapy, but without undesired side-effects. LRG1 targeting through this ADC presents a novel and effective proof-of-concept en route to improving the efficacy of cancer therapeutics.
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Affiliation(s)
- Faiza Javaid
- UCL Department of Chemistry 20 Gordon Street London WC1H 0AJ UK
- UCL Institute of Ophthalmology 11-43 Bath Street London EC1V 9EL UK
| | - Camilla Pilotti
- UCL Institute of Ophthalmology 11-43 Bath Street London EC1V 9EL UK
| | - Carlotta Camilli
- UCL Institute of Ophthalmology 11-43 Bath Street London EC1V 9EL UK
| | - David Kallenberg
- UCL Institute of Ophthalmology 11-43 Bath Street London EC1V 9EL UK
| | - Calise Bahou
- UCL Department of Chemistry 20 Gordon Street London WC1H 0AJ UK
| | - Jack Blackburn
- UCL Institute of Ophthalmology 11-43 Bath Street London EC1V 9EL UK
| | - James R Baker
- UCL Department of Chemistry 20 Gordon Street London WC1H 0AJ UK
| | - John Greenwood
- UCL Institute of Ophthalmology 11-43 Bath Street London EC1V 9EL UK
| | - Stephen E Moss
- UCL Institute of Ophthalmology 11-43 Bath Street London EC1V 9EL UK
| | - Vijay Chudasama
- UCL Department of Chemistry 20 Gordon Street London WC1H 0AJ UK
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12
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Matsumura Y. Barriers to antibody therapy in solid tumors, and their solutions. Cancer Sci 2021; 112:2939-2947. [PMID: 34032331 PMCID: PMC8353947 DOI: 10.1111/cas.14983] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 05/08/2021] [Accepted: 05/14/2021] [Indexed: 12/24/2022] Open
Abstract
Antibody drugs have become the mainstream of cancer treatment due to advances in cancer biology and Ab engineering. However, several barriers to Ab therapy have also been identified. These include various mechanisms for Ab drug resistance, such as heterogeneity of antigen expression in tumor cells and reduction in antitumor immunity due to expression diversity, polymorphism of Fc receptors (FcR) in effector cells, and reduced function of effector cells. Countermeasures to each resistance mechanism are being investigated. This review focuses on barriers that impede the delivery of Ab drugs due to features of the solid tumor microenvironment. Unlike hematological malignancies, in which the target tumor cells are in blood vessels, clinical solid tumors contain cancer stroma, which interferes with the delivery of Ab drugs. In addition, the cancer mass itself interferes with the penetration of Ab drugs. In this article, I will consider the etiology of cancer stroma and propose a new Ab drug development strategy for solid cancer treatment centering on cancer stromal targeting (CAST) therapy using anti-insoluble fibrin Ab-drug conjugate (ADC), which can overcome the cancer stroma barrier. The recent success of ADCs, chimeric antigen receptor T cells (CAR-Ts), and Bi-specific Abs is changing the category of Ab drugs from molecular-targeted drugs based on growth signal inhibition to cancer-specific targeted therapies. Therefore, at the end of this review, I argue that it is time to reorient the concept of Ab drug development.
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Affiliation(s)
- Yasuhiro Matsumura
- Department of Immune MedicineNational Cancer Center Research InstituteTokyoJapan
- Matsumura LabInnovation Center of NanoMedicineKawasakiJapan
- Tsukiji LabRINInstitute Inc.TokyoJapan
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13
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Subhan MA, Yalamarty SSK, Filipczak N, Parveen F, Torchilin VP. Recent Advances in Tumor Targeting via EPR Effect for Cancer Treatment. J Pers Med 2021; 11:571. [PMID: 34207137 PMCID: PMC8234032 DOI: 10.3390/jpm11060571] [Citation(s) in RCA: 182] [Impact Index Per Article: 60.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 06/11/2021] [Accepted: 06/16/2021] [Indexed: 12/11/2022] Open
Abstract
Cancer causes the second-highest rate of death world-wide. A major shortcoming inherent in most of anticancer drugs is their lack of tumor selectivity. Nanodrugs for cancer therapy administered intravenously escape renal clearance, are unable to penetrate through tight endothelial junctions of normal blood vessels and remain at a high level in plasma. Over time, the concentration of nanodrugs builds up in tumors due to the EPR effect, reaching several times higher than that of plasma due to the lack of lymphatic drainage. This review will address in detail the progress and prospects of tumor-targeting via EPR effect for cancer therapy.
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Affiliation(s)
- Md Abdus Subhan
- Department of Chemistry, Shah Jalal University of Science and Technology, Sylhet 3114, Bangladesh
| | - Satya Siva Kishan Yalamarty
- CPBN, Department of Pharmaceutical Sciences, Northeastern University, Boston, MA 02115, USA; (S.S.K.Y.); (N.F.); (F.P.)
| | - Nina Filipczak
- CPBN, Department of Pharmaceutical Sciences, Northeastern University, Boston, MA 02115, USA; (S.S.K.Y.); (N.F.); (F.P.)
| | - Farzana Parveen
- CPBN, Department of Pharmaceutical Sciences, Northeastern University, Boston, MA 02115, USA; (S.S.K.Y.); (N.F.); (F.P.)
- Department of Pharmaceutics, Faculty of Pharmacy, The Islamia University of Bahawalpur, Punjab 63100, Pakistan
| | - Vladimir P. Torchilin
- CPBN, Department of Pharmaceutical Sciences, Northeastern University, Boston, MA 02115, USA; (S.S.K.Y.); (N.F.); (F.P.)
- Department of Oncology, Radiotherapy and Plastic Surgery, I.M. Sechenov First Moscow State Medical University (Sechenov University), 119991 Moscow, Russia
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14
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Hanaoka S, Saijou S, Matsumura Y. A Novel and Potent Thrombolytic Fusion Protein Consisting of Anti-Insoluble Fibrin Antibody and Mutated Urokinase. Thromb Haemost 2021; 122:57-66. [PMID: 33882608 PMCID: PMC9008212 DOI: 10.1055/a-1488-3723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
Tissue plasminogen activator (tPA) is used clinically because it has a higher binding specificity for insoluble fibrin (IF) than urokinase (UK), but even pro-tPA has catalytic activity against substrates other than IF. UK has the advantage that it is specifically activated on IF; however, it binds IF weakly. Previously, we established a monoclonal antibody (mAb) that recognizes a pit structure formed only in IF. Here, we developed a new mAb against the pit, 1101, that does not affect coagulation or fibrinolysis, and prepared a fusion protein of UK with humanized 1101 Fab to transport UK selectively to IF. In IF-containing lesions, UK is cleaved by plasmin at two sites, Lys158/Ile159 and Lys135/Lys136. Cleavage of the former leads to activation of UK; however, because activated UK is linked by S-S bonds before and after cleavage, it is not released from the fusion. Cleavage at the latter site causes UK to leave the fusion protein; hence, we mutated Lys135/Lys136 to Gly135/Gly136 to prevent release of UK. This engineered UK-antibody fusion, AMU1114, significantly decreased the reduction of plasma plasminogen levels in vivo relative to UK. In a photochemically induced mouse model of thrombus, the vascular patency rate was 0% (0/10) in the control, 50% (5/10) in the tPA treatment group, and 90% (9/10) in the AMU1114 treatment group. Although no death was observed 1 hour after administration of each thrombolytic agent, some mice died within 24 hours in all treatment groups, including control. These data indicate the need for further basic studies of AMU1114.
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Affiliation(s)
- Shingo Hanaoka
- RIN Institute Inc., Tokyo, Japan.,Division of Developmental Therapeutics, Exploratory Oncology Research & Clinical Trial Center, National Cancer Center, Kashiwa, Chiba, Japan
| | - Shinji Saijou
- RIN Institute Inc., Tokyo, Japan.,Division of Developmental Therapeutics, Exploratory Oncology Research & Clinical Trial Center, National Cancer Center, Kashiwa, Chiba, Japan
| | - Yasuhiro Matsumura
- RIN Institute Inc., Tokyo, Japan.,Division of Developmental Therapeutics, Exploratory Oncology Research & Clinical Trial Center, National Cancer Center, Kashiwa, Chiba, Japan.,Department of Immune Medicine, National Cancer Center Research Institute, Tokyo, Japan
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15
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Tang Y, Cao Y. Modeling the dynamics of antibody-target binding in living tumors. Sci Rep 2020; 10:16764. [PMID: 33028895 PMCID: PMC7542163 DOI: 10.1038/s41598-020-73711-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Accepted: 09/09/2020] [Indexed: 02/06/2023] Open
Abstract
Antibodies have become an attractive class of therapeutic agents for solid tumors, mainly because of their high target selectivity and affinity. The target binding properties of antibodies are critical for their efficacy and toxicity. Our lab has developed a bioluminescence resonance energy transfer (BRET) imaging approach that directly supports the measurement of the binding dynamics between antibodies and their targets in the native tumor environment. In the present study, we have developed a spatially resolved computational model analyzing the longitudinal BRET imaging data of antibody–target binding and exploring the mechanisms of biphasic binding dynamics between a model antibody cetuximab and its target, the epidermal growth factor receptor (EGFR). The model suggested that cetuximab is bound differently to EGFR in the stroma-rich area than in stroma-poor regions, which was confirmed by immunofluorescence staining. Compared to the binding in vitro, cetuximab bound to EGFR to a “slower-but-tighter” degree in the living tumors. These findings have provided spatially resolved characterizations of antibody–target binding in living tumors and have yielded many mechanistic insights into the factors that affect antibody interactions with its targets and treatment efficacy.
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Affiliation(s)
- Yu Tang
- Division of Pharmacotherapy and Experimental Therapeutics, UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC, 27599, USA
| | - Yanguang Cao
- Division of Pharmacotherapy and Experimental Therapeutics, UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC, 27599, USA. .,Lineberger Comprehensive Cancer Center, School of Medicine, University of North Carolina, Chapel Hill, NC, 27599, USA.
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16
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Joubert N, Beck A, Dumontet C, Denevault-Sabourin C. Antibody-Drug Conjugates: The Last Decade. Pharmaceuticals (Basel) 2020; 13:ph13090245. [PMID: 32937862 PMCID: PMC7558467 DOI: 10.3390/ph13090245] [Citation(s) in RCA: 187] [Impact Index Per Article: 46.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 09/07/2020] [Accepted: 09/10/2020] [Indexed: 01/01/2023] Open
Abstract
An armed antibody (antibody–drug conjugate or ADC) is a vectorized chemotherapy, which results from the grafting of a cytotoxic agent onto a monoclonal antibody via a judiciously constructed spacer arm. ADCs have made considerable progress in 10 years. While in 2009 only gemtuzumab ozogamicin (Mylotarg®) was used clinically, in 2020, 9 Food and Drug Administration (FDA)-approved ADCs are available, and more than 80 others are in active clinical studies. This review will focus on FDA-approved and late-stage ADCs, their limitations including their toxicity and associated resistance mechanisms, as well as new emerging strategies to address these issues and attempt to widen their therapeutic window. Finally, we will discuss their combination with conventional chemotherapy or checkpoint inhibitors, and their design for applications beyond oncology, to make ADCs the magic bullet that Paul Ehrlich dreamed of.
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Affiliation(s)
- Nicolas Joubert
- GICC EA7501, Equipe IMT, Université de Tours, UFR des Sciences Pharmaceutiques, 31 Avenue Monge, 37200 Tours, France;
- Correspondence:
| | - Alain Beck
- Institut de Recherche Pierre Fabre, Centre d’Immunologie Pierre Fabre, 5 Avenue Napoléon III, 74160 Saint Julien en Genevois, France;
| | - Charles Dumontet
- Cancer Research Center of Lyon (CRCL), INSERM, 1052/CNRS 5286/UCBL, 69000 Lyon, France;
- Hospices Civils de Lyon, 69000 Lyon, France
| | - Caroline Denevault-Sabourin
- GICC EA7501, Equipe IMT, Université de Tours, UFR des Sciences Pharmaceutiques, 31 Avenue Monge, 37200 Tours, France;
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17
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Anami Y, Deng M, Gui X, Yamaguchi A, Yamazaki CM, Zhang N, Zhang CC, An Z, Tsuchikama K. LILRB4-targeting Antibody-Drug Conjugates for the Treatment of Acute Myeloid Leukemia. Mol Cancer Ther 2020; 19:2330-2339. [PMID: 32879051 DOI: 10.1158/1535-7163.mct-20-0407] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 07/09/2020] [Accepted: 08/25/2020] [Indexed: 11/16/2022]
Abstract
Acute myeloid leukemia (AML) is the most common and aggressive blood cancer in adults. In particular, significant unmet medical needs exist for effective treatment strategies for acute myelomonocytic leukemia (M4) and acute monocytic leukemia (M5) AML subtypes. Antibody-drug conjugates (ADC) are a promising drug class for AML therapy, as demonstrated by the FDA-approved anti-CD33 ADC, gemtuzumab ozogamicin (Mylotarg). However, CD33 is expressed in normal hematopoietic stem cells, highlighting the critical need to identify AML-specific targets to minimize the risk of potential adverse effects. We have demonstrated that the leukocyte immunoglobulin-like receptor subfamily B4 (LILRB4) is expressed at significantly higher levels on monocytic M4 and M5 AML cells than on normal counterparts. Here, we test whether LILRB4 is a promising ADC target to kill monocytic AML cells while sparing healthy counterparts. To this end, we generated ADCs from a humanized anti-LILRB4 mAb and the antimitotic payload, monomethyl auristatin F. The conjugates constructed were characterized and evaluated for LILRB4-specific cell killing potency, toxicity to progenitor cells, pharmacokinetics, and therapeutic efficacy. Our ADC linker technology platform efficiently generated homogeneous anti-LILRB4 ADCs with defined drug-to-antibody ratios. The homogeneous anti-LILRB4 ADCs demonstrated the capacity for LILRB4-mediated internalization, suitable physicochemical properties, and high cell killing potency against LILRB4-positive AML cells. Importantly, our data indicate that these ADCs spare normal progenitor cells. One of our homogeneous conjugates exerted a remarkable therapeutic effect and no significant toxicity in a xenograft mouse model of disseminated human AML. Our findings highlight the clinical potential of anti-LILRB4 ADCs in monocytic AML therapy.
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Affiliation(s)
- Yasuaki Anami
- Texas Therapeutics Institute, The Brown Foundation Institute of Molecular Medicine, The University of Texas Health Science Center at Houston, Houston, Texas
| | - Mi Deng
- Department of Physiology, The University of Texas Southwestern Medical Center, Dallas, Texas
| | - Xun Gui
- Texas Therapeutics Institute, The Brown Foundation Institute of Molecular Medicine, The University of Texas Health Science Center at Houston, Houston, Texas
| | - Aiko Yamaguchi
- Texas Therapeutics Institute, The Brown Foundation Institute of Molecular Medicine, The University of Texas Health Science Center at Houston, Houston, Texas
| | - Chisato M Yamazaki
- Texas Therapeutics Institute, The Brown Foundation Institute of Molecular Medicine, The University of Texas Health Science Center at Houston, Houston, Texas
| | - Ningyan Zhang
- Texas Therapeutics Institute, The Brown Foundation Institute of Molecular Medicine, The University of Texas Health Science Center at Houston, Houston, Texas
| | - Cheng Cheng Zhang
- Department of Physiology, The University of Texas Southwestern Medical Center, Dallas, Texas.
| | - Zhiqiang An
- Texas Therapeutics Institute, The Brown Foundation Institute of Molecular Medicine, The University of Texas Health Science Center at Houston, Houston, Texas.
| | - Kyoji Tsuchikama
- Texas Therapeutics Institute, The Brown Foundation Institute of Molecular Medicine, The University of Texas Health Science Center at Houston, Houston, Texas.
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18
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Manabe S, Yamaguchi Y, Matsumura Y. Contribution from Synthetic Organic Chemistry and Glycoscience to ADC Development: Homogeneous ADC Preparation and Development of Cancer Stromal Targeting Therapy. J SYN ORG CHEM JPN 2020. [DOI: 10.5059/yukigoseikyokaishi.78.485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Shino Manabe
- Pharmaceutical Department, Hoshi Universtity
- Research Center for Pharmaceutical Development Graduate School of Pharmaceutical Sciences & Faculty of Pharmaceutical Sciences, Tohoku University
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19
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Beck A, Dumontet C, Joubert N. [Antibody-drug conjugates in oncology. Recent success of an ancient concept]. Med Sci (Paris) 2020; 35:1034-1042. [PMID: 31903915 DOI: 10.1051/medsci/2019227] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
An Antibody-Drug Conjugate (armed antibody) is a vectorized chemotherapy that results from the grafting of a cytotoxic agent on a monoclonal antibody thanks to a judiciously designed spacer arm. ADCs have made considerable progress in 10 years. In 2009, only gemtuzumab ozogamicin (Mylotarg®) was used clinically. In 2019, 4 other ADCs have been approved and more than 80 others are in active clinical trials. The first part of this review will focus on Food and Drug Administration-approved Antibody-Drug Conjugates, their limitations as well as their associated toxicity and resistance mechanisms.
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Affiliation(s)
- Alain Beck
- Institut de Recherche Pierre Fabre, Centre d'Immunologie Pierre Fabre, 5 Avenue Napoléon III, 74160 Saint-Julien-en-Genevois, France
| | - Charles Dumontet
- Cancer Research Center of Lyon (CRCL), Inserm 1052/CNRS, 69000 Lyon, France - Université de Lyon, 69000 Lyon, France - Hospices Civils de Lyon, 69000 Lyon, France
| | - Nicolas Joubert
- GICC EA7501, Université de Tours, équipe IMT, 31 avenue Monge, 37200 Tours, France
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20
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Matsumura Y. Cancer stromal targeting therapy to overcome the pitfall of EPR effect. Adv Drug Deliv Rev 2020; 154-155:142-150. [PMID: 32652119 DOI: 10.1016/j.addr.2020.07.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Revised: 07/01/2020] [Accepted: 07/02/2020] [Indexed: 12/27/2022]
Abstract
Many animal experiments performed worldwide have proven EPR effects However, it is hard to say that the EPR effect works in clinical practice. In the case of hematological malignancies, the administered anticancer agents (ACA) can physically interact with the malignant cells, making it easier to reflect in vitro data. In solid tumors, however, the extravasated ACAs must diffuse evenly within the whole tumor mass. Therefore, the cancer stroma and the tumor mass itself can be obstacles to drug delivery systems (DDS) including antibody therapeutics. We have demonstrated that hypercoagulability caused by cancer forms cancer stroma. We further showed that the more aggressive the cancer, the greater the deposition of insoluble fibrin (IF) in cancer tissue. In this background, we decided to create monoclonal antibody (mAb) that specifically binds to IF. After a long effort, a new and unique IF-specific mAb was developed. Subsequently, anti-IF mAb conjugated with an ACA using a V-L-K linker which can be cut by plasmin. Because plasmin is activated only during IF formation, the ACA is released from the ADC only when the conjugate is bound to the IF. The released ACA may readily get to cancer cells through the stromal obstacle because of its small size. The ACA also damages the capillary that nourish cancer cells. We have named this strategy cancer (CA) stroma (S) targeting (T) therapy, or CAST therapy.
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21
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Kuwahara M, Fujita H, Kataoka Y, Nakajima Y, Yamada M, Sugimoto N. In situ condensation of an anti-cancer drug into fibrin gel enabling effective inhibition of tumor cell growth. Chem Commun (Camb) 2019; 55:11679-11682. [PMID: 31524892 DOI: 10.1039/c9cc06418d] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
We show herein the highly effective inhibition of tumor cell growth using a gel consisting of a fibrin polymer formed with the in situ condensation of a camptothecin (CPT) derivative as an anti-cancer drug, which is efficiently conveyed with a carrier aptamer from a solution to the gel in a phenomenon, called selective oligonucleotide entrapment in fibrin polymers (SOEF).
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Affiliation(s)
- Masayasu Kuwahara
- Graduate School of Integrated Basic Sciences, Nihon University, 3-25-40 Sakurajosui, Setagaya-ku, Tokyo 156-8550, Japan.
| | - Hiroto Fujita
- Graduate School of Integrated Basic Sciences, Nihon University, 3-25-40 Sakurajosui, Setagaya-ku, Tokyo 156-8550, Japan.
| | - Yuka Kataoka
- Graduate School of Integrated Basic Sciences, Nihon University, 3-25-40 Sakurajosui, Setagaya-ku, Tokyo 156-8550, Japan.
| | - Yasuyo Nakajima
- Department of Internal Medicine, Division of Endocrinology and Metabolism, Graduate School of Medicine, Gunma University, 3-39-15 Showa-machi, Maebashi, 371-8511, Japan
| | - Masanobu Yamada
- Department of Internal Medicine, Division of Endocrinology and Metabolism, Graduate School of Medicine, Gunma University, 3-39-15 Showa-machi, Maebashi, 371-8511, Japan
| | - Naoki Sugimoto
- Frontier Institute for Biomolecular Engineering Research (FIBER), Konan University, 7-1-20 Minatojima-minamimachi, Kobe, 650-0047, Japan and Graduate School of Frontiers of Innovative Research in Science and Technology (FIRST), Konan University, 7-1-20 Minatojima-minamimachi, Kobe, 650-0047, Japan
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22
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Yasunaga M. Antibody therapeutics and immunoregulation in cancer and autoimmune disease. Semin Cancer Biol 2019; 64:1-12. [PMID: 31181267 DOI: 10.1016/j.semcancer.2019.06.001] [Citation(s) in RCA: 83] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Accepted: 06/03/2019] [Indexed: 02/04/2023]
Abstract
Cancer and autoimmune disease are closely related, and many therapeutic antibodies are widely used in clinics for the treatment of both diseases. Among them, the anti-CD20 antibody has proven to be effective against both lymphoid malignancy and autoimmune disease. Moreover, immune checkpoint blockade using the anti-PD1/PD-L1/CTLA4 antibody has improved the prognosis of patients with refractory solid tumors. At the same time, however, over-enhancement of immunoreaction can induce autoimmune reaction. Although anti-TNF antibody therapies represent a breakthrough in the treatment of autoimmune diseases, optimal management is required to control the serious associated issues, including development and progression of cancer, and it is becoming more and more important to control the immunoreaction. In addition, next-generation antibody therapeutics such as antibody-drug conjugates and bispecific antibodies, are anticipated to treat uncontrolled cancer and autoimmune disease. IL-7R signaling plays an important role in the development and progression of both lymphoid malignancy and autoimmune disease. In addition, abnormal homing activity and steroid resistance caused by IL-7R signaling may worsen prognosis. Therefore, anti-IL-7R targeting antibody therapies that enable suppression of such pathophysiological status have the potential to be beneficial for the treatment of both diseases. In this review, we discuss current antibody therapeutics in cancer and autoimmune disease, and describe a new therapeutic strategy for immunoregulation including IL-7R targeting antibodies.
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Affiliation(s)
- Masahiro Yasunaga
- Division of Developmental Therapeutics, EPOC, National Cancer Center, 6-5-1 Kashiwanoha, Kashiwa-shi, Chiba, 277-8577, Japan.
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23
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Yasunaga M, Saijou S, Hanaoka S, Anzai T, Tsumura R, Matsumura Y. Significant antitumor effect of an antibody against TMEM180, a new colorectal cancer-specific molecule. Cancer Sci 2019; 110:761-770. [PMID: 30537002 PMCID: PMC6361608 DOI: 10.1111/cas.13907] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Revised: 12/04/2018] [Accepted: 12/05/2018] [Indexed: 12/31/2022] Open
Abstract
The present state of therapy for colorectal cancer (CRC) is far from satisfactory, highlighting the need for new targets for this disease. We identified a new CRC‐specific molecule, TMEM180, a predicted 11‐pass transmembrane protein that apparently functions as a cation symporter. We developed an anti‐TMEM180 mAb and then succeeded in humanizing the mAb. Immunohistochemistry (IHC) in CRC with the mAb showed a similar positivity rate as compared with anti‐epidermal growth factor receptor mAb, and IHC with anti‐TMEM180 mAb did not show staining in major organs used in this study. Immune electron microscopy clearly indicated that TMEM180 was present on the tumor exosome. The TMEM180 promoter region contains 10 hypoxia‐responsive element consensus sequences; accordingly, SW480 cells upregulated TMEM180 under low‐oxygen conditions. Anti‐TMEM180 mAb has in vitro antibody‐dependent cell‐mediated cytotoxicity and complement‐dependent cytotoxicity activity, and SW480 CRC xenografts were eradicated by the mAb. These data indicate that TMEM180 may be a new CRC marker and that a mAb against this protein could be used as antibody‐based therapy against CRC.
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Affiliation(s)
- Masahiro Yasunaga
- Division of Developmental Therapeutics, Exploratory Oncology Research & Clinical Trial Centre, National Cancer Centre, Kashiwa, Japan
| | - Shinji Saijou
- Division of Developmental Therapeutics, Exploratory Oncology Research & Clinical Trial Centre, National Cancer Centre, Kashiwa, Japan
| | - Shingo Hanaoka
- Division of Developmental Therapeutics, Exploratory Oncology Research & Clinical Trial Centre, National Cancer Centre, Kashiwa, Japan
| | - Takahiro Anzai
- Division of Developmental Therapeutics, Exploratory Oncology Research & Clinical Trial Centre, National Cancer Centre, Kashiwa, Japan
| | - Ryo Tsumura
- Division of Developmental Therapeutics, Exploratory Oncology Research & Clinical Trial Centre, National Cancer Centre, Kashiwa, Japan
| | - Yasuhiro Matsumura
- Division of Developmental Therapeutics, Exploratory Oncology Research & Clinical Trial Centre, National Cancer Centre, Kashiwa, Japan
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24
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Chemotherapy payload of anti-insoluble fibrin antibody-drug conjugate is released specifically upon binding to fibrin. Sci Rep 2018; 8:14211. [PMID: 30242282 PMCID: PMC6155080 DOI: 10.1038/s41598-018-32601-0] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Accepted: 09/05/2018] [Indexed: 01/31/2023] Open
Abstract
Cancer-induced blood coagulation in human tumour generates insoluble fibrin (IF)-rich cancer stroma in which uneven monoclonal antibody (mAb) distribution reduce the potential effectiveness of mAb-mediated treatments. Previously, we developed a mAb that reacts only with IF and not with fibrinogen (FNG) or the fibrin degradation product (FDP). Although IF, FNG and FDP share same amino acid sequences, the mAb is hardly neutralised by FNG and FDP in circulation and accumulates in fibrin clots within tumour tissue. Here, we created an antibody drug conjugate (ADC) using the anti-IF mAb conjugated with a chemotherapy payload (IF-ADC). The conjugate contains a linker severed specifically by plasmin (PLM), which is activated only on binding to IF. Imaging mass spectrometry showed the substantial intratumour distribution of the payload following the IF-ADC injection into mice bearing IF-rich 5–11 xenografts derived from pancreatic tumours of LSL-KrasG12D/+; LSL-Trp53R172H/+; Ptf1a-Cre (KPC) mice. IF-ADC treatment significantly extended the survival of the KPC mice. These data suggest that conjugating chemotherapy drugs to this IF-specific mAb could represent an effective means of treating stroma-rich tumours
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25
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Golombek SK, May JN, Theek B, Appold L, Drude N, Kiessling F, Lammers T. Tumor targeting via EPR: Strategies to enhance patient responses. Adv Drug Deliv Rev 2018; 130:17-38. [PMID: 30009886 PMCID: PMC6130746 DOI: 10.1016/j.addr.2018.07.007] [Citation(s) in RCA: 765] [Impact Index Per Article: 127.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Revised: 07/06/2018] [Accepted: 07/09/2018] [Indexed: 12/11/2022]
Abstract
The tumor accumulation of nanomedicines relies on the enhanced permeability and retention (EPR) effect. In the last 5-10 years, it has been increasingly recognized that there is a large inter- and intra-individual heterogeneity in EPR-mediated tumor targeting, explaining the heterogeneous outcomes of clinical trials in which nanomedicine formulations have been evaluated. To address this heterogeneity, as in other areas of oncology drug development, we have to move away from a one-size-fits-all tumor targeting approach, towards methods that can be employed to individualize and improve nanomedicine treatments. To this end, efforts have to be invested in better understanding the nature, the complexity and the heterogeneity of the EPR effect, and in establishing systems and strategies to enhance, combine, bypass and image EPR-based tumor targeting. In the present manuscript, we summarize key studies in which these strategies are explored, and we discuss how these approaches can be employed to enhance patient responses.
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Affiliation(s)
- Susanne K Golombek
- Department of Nanomedicine and Theranostics, Institute for Experimental Molecular Imaging, RWTH Aachen University Clinic, Aachen, Germany
| | - Jan-Niklas May
- Department of Nanomedicine and Theranostics, Institute for Experimental Molecular Imaging, RWTH Aachen University Clinic, Aachen, Germany
| | - Benjamin Theek
- Department of Nanomedicine and Theranostics, Institute for Experimental Molecular Imaging, RWTH Aachen University Clinic, Aachen, Germany
| | - Lia Appold
- Department of Nanomedicine and Theranostics, Institute for Experimental Molecular Imaging, RWTH Aachen University Clinic, Aachen, Germany
| | - Natascha Drude
- Department of Nanomedicine and Theranostics, Institute for Experimental Molecular Imaging, RWTH Aachen University Clinic, Aachen, Germany; Department of Nuclear Medicine, RWTH Aachen University Clinic, Aachen, Germany
| | - Fabian Kiessling
- Department of Nanomedicine and Theranostics, Institute for Experimental Molecular Imaging, RWTH Aachen University Clinic, Aachen, Germany
| | - Twan Lammers
- Department of Nanomedicine and Theranostics, Institute for Experimental Molecular Imaging, RWTH Aachen University Clinic, Aachen, Germany; Department of Pharmaceutics, Utrecht University, Utrecht, the Netherlands; Department of Targeted Therapeutics, University of Twente, Enschede, the Netherlands.
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26
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Matsumura Y. Development of CAST therapy based on the EPR effect: lesson from clinical trials. ACTA ACUST UNITED AC 2018. [DOI: 10.2745/dds.33.139] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Yasuhiro Matsumura
- Division of Developmental Therapeutics, Exploratory Oncology Research & Clinical Trial Center, National Cancer Center
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27
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Raavé R, van Kuppevelt TH, Daamen WF. Chemotherapeutic drug delivery by tumoral extracellular matrix targeting. J Control Release 2018; 274:1-8. [PMID: 29382546 DOI: 10.1016/j.jconrel.2018.01.029] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Revised: 01/24/2018] [Accepted: 01/26/2018] [Indexed: 12/17/2022]
Abstract
Systemic chemotherapy is a primary strategy in the treatment of cancer, but comes with a number of limitations such as toxicity and unfavorable biodistribution. To overcome these issues, numerous targeting systems for specific delivery of chemotherapeutics to tumor cells have been designed and evaluated. Such strategies generally address subsets of tumor cells, still allowing the progressive growth of tumor cells not expressing the target. Moreover, tumor stem cells and tumor supportive cells, such as cancer associated fibroblasts and cancer associated macrophages, are left unaffected by this approach. In this review, we discuss an alternative targeting strategy aimed at delivery of anti-tumor drugs to the tumoral extracellular matrix with the potential to eliminate all cell types. The extracellular matrix of tumors is vastly different from that of healthy tissue and offers hooks for targeted drug delivery. It is concluded that matrix targeting is promising, but that clinical studies are required to evaluate translation.
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Affiliation(s)
- René Raavé
- Radboud university medical center, Radboud Institute for Molecular Life Sciences, Department of Biochemistry, P.O. Box 9101, 6500 HB Nijmegen, The Netherlands.
| | - Toin H van Kuppevelt
- Radboud university medical center, Radboud Institute for Molecular Life Sciences, Department of Biochemistry, P.O. Box 9101, 6500 HB Nijmegen, The Netherlands.
| | - Willeke F Daamen
- Radboud university medical center, Radboud Institute for Molecular Life Sciences, Department of Biochemistry, P.O. Box 9101, 6500 HB Nijmegen, The Netherlands.
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Antibody-Drug Conjugates: Targeting the Tumor Microenvironment. CANCER DRUG DISCOVERY AND DEVELOPMENT 2018. [DOI: 10.1007/978-3-319-78154-9_13] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Towards antibody-drug conjugates and prodrug strategies with extracellular stimuli-responsive drug delivery in the tumor microenvironment for cancer therapy. Eur J Med Chem 2017; 142:393-415. [DOI: 10.1016/j.ejmech.2017.08.049] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Revised: 08/21/2017] [Accepted: 08/22/2017] [Indexed: 11/20/2022]
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Fujita H, Inoue Y, Kuwahara M. Selective incorporation of foreign functionality into fibrin gels through a chemically modified DNA aptamer. Bioorg Med Chem Lett 2017; 28:35-39. [PMID: 29162456 DOI: 10.1016/j.bmcl.2017.11.022] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Revised: 11/09/2017] [Accepted: 11/10/2017] [Indexed: 01/08/2023]
Abstract
We found for the first time that a thrombin-binding DNA aptamer (TBA) is selectively entrapped in fibrin gels during the gel growth reaction catalyzed by thrombin. Furthermore, using this phenomenon, we successfully demonstrated multiple incorporation of amphiphilic aliphatic groups into fibrin gels via chemically modified TBA.
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Affiliation(s)
- Hiroto Fujita
- Graduate School of Science and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515, Japan
| | - Yusuke Inoue
- Graduate School of Science and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515, Japan
| | - Masayasu Kuwahara
- Graduate School of Science and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515, Japan.
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Yasunaga M, Manabe S, Tsuji A, Furuta M, Ogata K, Koga Y, Saga T, Matsumura Y. Development of Antibody-Drug Conjugates Using DDS and Molecular Imaging. Bioengineering (Basel) 2017; 4:bioengineering4030078. [PMID: 28952557 PMCID: PMC5615324 DOI: 10.3390/bioengineering4030078] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Revised: 09/13/2017] [Accepted: 09/14/2017] [Indexed: 12/04/2022] Open
Abstract
Antibody-drug conjugate (ADC), as a next generation of antibody therapeutics, is a combination of an antibody and a drug connected via a specialized linker. ADC has four action steps: systemic circulation, the enhanced permeability and retention (EPR) effect, penetration within the tumor tissue, and action on cells, such as through drug delivery system (DDS) drugs. An antibody with a size of about 10 nm has the same capacity for passive targeting as some DDS carriers, depending on the EPR effect. In addition, some antibodies are capable of active targeting. A linker is stable in the bloodstream but should release drugs efficiently in the tumor cells or their microenvironment. Thus, the linker technology is actually a typical controlled release technology in DDS. Here, we focused on molecular imaging. Fluorescent and positron emission tomography (PET) imaging is useful for the visualization and evaluation of antibody delivery in terms of passive and active targeting in the systemic circulation and in tumors. To evaluate the controlled release of the ADC in the targeted area, a mass spectrometry imaging (MSI) with a mass microscope, to visualize the drug released from ADC, was used. As a result, we succeeded in confirming the significant anti-tumor activity of anti-fibrin, or anti-tissue factor-ADC, in preclinical settings by using DDS and molecular imaging.
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Affiliation(s)
- Masahiro Yasunaga
- Division of Developmental Therapeutics, EPOC, National Cancer Center, Kashiwa 277-8577, Japan.
| | - Shino Manabe
- Synthetic Cellular Chemistry Laboratory, RIKEN, Wako 351-0198, Japan.
| | - Atsushi Tsuji
- Department of Molecular Imaging and Theranostics, National Institute of Radiological Sciences, QST, Chiba 263-8555, Japan; .
| | | | | | - Yoshikatsu Koga
- Division of Developmental Therapeutics, EPOC, National Cancer Center, Kashiwa 277-8577, Japan.
| | - Tsuneo Saga
- Department of Diagnostic Radiology, Kyoto University Hospital; Kyoto 606-8501, Japan.
| | - Yasuhiro Matsumura
- Division of Developmental Therapeutics, EPOC, National Cancer Center, Kashiwa 277-8577, Japan.
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Dal Corso A, Gébleux R, Murer P, Soltermann A, Neri D. A non-internalizing antibody-drug conjugate based on an anthracycline payload displays potent therapeutic activity in vivo. J Control Release 2017; 264:211-218. [PMID: 28867376 DOI: 10.1016/j.jconrel.2017.08.040] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Revised: 08/25/2017] [Accepted: 08/30/2017] [Indexed: 12/29/2022]
Abstract
Antibody-drug conjugates are generally believed to crucially rely on internalization into cancer cells for therapeutic activity. Here, we show that a non-internalizing antibody-drug conjugate, based on the F16 antibody specific to the alternatively spliced A1 domain of tenascin-C, mediates a potent therapeutic activity when equipped with the anthracycline PNU159682. The peptide linker, connecting the F16 antibody in IgG format at a specific cysteine residue to the drug, was stable in serum but could be efficiently cleaved in the subendothelial extracellular matrix by proteases released by the dying tumor cells. The results indicate that there may be a broader potential applicability of non-internalizing antibody-drug conjugates for cancer therapy than what had previously been assumed.
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Affiliation(s)
- Alberto Dal Corso
- Department of Chemistry and Applied Biosciences, Swiss Federal Institute of Technology (ETH Zürich), Vladimir-Prelog-Weg 4, CH-8093 Zürich, Switzerland
| | - Rémy Gébleux
- Department of Chemistry and Applied Biosciences, Swiss Federal Institute of Technology (ETH Zürich), Vladimir-Prelog-Weg 4, CH-8093 Zürich, Switzerland
| | - Patrizia Murer
- Department of Chemistry and Applied Biosciences, Swiss Federal Institute of Technology (ETH Zürich), Vladimir-Prelog-Weg 4, CH-8093 Zürich, Switzerland
| | - Alex Soltermann
- Institute of Pathology, University Hospital Zurich, Schmelzbergstrasse 12, CH-8091 Zurich, Switzerland
| | - Dario Neri
- Department of Chemistry and Applied Biosciences, Swiss Federal Institute of Technology (ETH Zürich), Vladimir-Prelog-Weg 4, CH-8093 Zürich, Switzerland.
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Repetto O, De Re V. Coagulation and fibrinolysis in gastric cancer. Ann N Y Acad Sci 2017; 1404:27-48. [PMID: 28833193 DOI: 10.1111/nyas.13454] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Revised: 07/12/2017] [Accepted: 07/25/2017] [Indexed: 12/12/2022]
Abstract
Coagulation is a highly conserved process occurring after an injury to a blood vessel and resulting in hemostasis. In the thrombus microenvironment, finely orchestrated events restore vessel integrity through platelet activation, adhesion, and aggregation (primary hemostasis), followed by the coagulation cascades, thrombin generation, and fibrin clot deposition (secondary hemostasis). Several studies on cancer have provided insight into dramatic changes to coagulation-related events (i.e., fibrin clot deposition, fibrinolysis) during tumor pathogenesis, progression, and metastasis, in addition to a tumor-driven systemic activation of hemostasis and thrombosis (Trousseau's syndrome). Diverse molecular and cellular effectors participate in the cross talk between hemostasis and tumors. Here, we focus on some aspects of the interconnection between cancer biology and hemostatic components, with particular attention to some key coagulation-related proteins (e.g., tissue factor, thrombin, fibrinogen, and D-dimers) in the particular case of gastric cancer (GC). Recent advances in deciphering the complex molecular link between GC and the coagulation system are described, showing their important roles in better management of patients affected by GC.
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Affiliation(s)
- Ombretta Repetto
- Facility of Bio-Proteomics, Immunopathology and Cancer Biomarkers, CRO Aviano National Cancer Institute, Aviano (PN), Italy
| | - Valli De Re
- Facility of Bio-Proteomics, Immunopathology and Cancer Biomarkers, CRO Aviano National Cancer Institute, Aviano (PN), Italy
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Dal Corso A, Cazzamalli S, Gébleux R, Mattarella M, Neri D. Protease-Cleavable Linkers Modulate the Anticancer Activity of Noninternalizing Antibody-Drug Conjugates. Bioconjug Chem 2017; 28:1826-1833. [PMID: 28662334 DOI: 10.1021/acs.bioconjchem.7b00304] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Antibody-drug conjugates (ADCs) represent an attractive class of biopharmaceutical agents, with the potential to selectively deliver potent cytotoxic agents to tumors. It is generally assumed that ADC products should preferably bind and internalize into cancer cells in order to liberate their toxic payload, but a growing body of evidence indicates that also ADCs based on noninternalizing antibodies may be potently active. In this Communication, we investigated dipeptide-based linkers (frequently used for internalizing ADC products) in the context of the noninternalizing F16 antibody, specific to a splice isoform of tenascin-C. Using monomethyl auristatin E (MMAE) as potent cytotoxic drug, we observed that a single amino acid substitution of the Val-Cit dipeptide linker can substantially modulate the in vivo stability of the corresponding ADC products, as well as the anticancer activity in mice bearing the human epidermoid A431 carcinoma. In these settings, the linker based on the Val-Ala dipeptide exhibited better performances, compared to Val-Cit, Val-Lys, and Val-Arg analogues. Mass spectrometric analysis revealed that the four linkers displayed not only different stability in vivo but also differences in cleavage sites. Moreover, the absence of anticancer activity for a F16-MMAE conjugate featuring a noncleavable linker indicated that drug release modalities, based on proteolytic degradation of the immunoglobulin moiety, cannot be exploited with noninternalizing antibodies. ADC products based on the noninternalizing F16 antibody may be useful for the treatment of several human malignancies, as the cognate antigen is abundantly expressed in the extracellular matrix of several tumors, while being virtually undetectable in most normal adult tissues.
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Affiliation(s)
- Alberto Dal Corso
- Department of Chemistry and Applied Biosciences, Swiss Federal Institute of Technology (ETH Zürich) , Vladimir-Prelog-Weg 4, CH-8093 Zürich, Switzerland
| | - Samuele Cazzamalli
- Department of Chemistry and Applied Biosciences, Swiss Federal Institute of Technology (ETH Zürich) , Vladimir-Prelog-Weg 4, CH-8093 Zürich, Switzerland
| | - Rémy Gébleux
- Department of Chemistry and Applied Biosciences, Swiss Federal Institute of Technology (ETH Zürich) , Vladimir-Prelog-Weg 4, CH-8093 Zürich, Switzerland
| | | | - Dario Neri
- Department of Chemistry and Applied Biosciences, Swiss Federal Institute of Technology (ETH Zürich) , Vladimir-Prelog-Weg 4, CH-8093 Zürich, Switzerland
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Yasunaga M, Manabe S, Tsuji A, Furuta M, Ogata K, Koga Y, Fujiwara Y, Saga T, Matsumura Y. Development of ADCs Using Molecular Imaging. YAKUGAKU ZASSHI 2017; 137:535-544. [PMID: 28458285 DOI: 10.1248/yakushi.16-00255-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Antibody-drug conjugates (ADCs) comprise an antibody, a linker, and a drug or payload. The selection of a tumor-specific antibody and development of a linker having an efficient controlled drug release (CDR) are critical steps in developing a fully functional and effective ADC. In our research strategy, molecular imaging technologies have been employed to evaluate the efficiency of antibody delivery and CDR of the linker. In preclinical setting, antibody delivery into the tumor area or antibody penetration through the tumor stroma in malignant lymphoma or pancreatic tumor was evaluated by in vivo fluorescence imaging technique. Positron emission tomography (PET) imaging studies were conducted using 89Zr-labeled antibody to evaluate tumor targeting in a spontaneous carcinogenesis model. The model had dense stroma and was pathophysiologically very similar to human cancer. The drug imaging system, using microscopic mass spectroscopy (MMS) with enhanced resolution and sensitivity, was used for the evaluation of CDR. Paclitaxel (PTX)-incorporated micelle, a high-molecular-weight (HMW) carrier with CDR, showing similar properties as those of ADC, was analyzed. In contrast to free PTX, micelle selectively increased drug accumulation into the tumor and reduced toxicity in normal tissues by the enhanced permeability and retention (EPR) effect. Our drug imaging system has been used recently to evaluate the CDR of the ADC-linker. We present our work on the development of ADC using a molecular imaging technique.
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Affiliation(s)
- Masahiro Yasunaga
- Division of Developmental Therapeutics, EPOC, National Cancer Center
| | | | - Atsushi Tsuji
- Diagnostic Imaging Program, Molecular Imaging Center, National Institute of Radiological Sciences
| | | | | | - Yoshikatsu Koga
- Division of Developmental Therapeutics, EPOC, National Cancer Center
| | - Yuki Fujiwara
- Division of Developmental Therapeutics, EPOC, National Cancer Center
| | - Tsuneo Saga
- Diagnostic Imaging Program, Molecular Imaging Center, National Institute of Radiological Sciences
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Gébleux R, Stringhini M, Casanova R, Soltermann A, Neri D. Non-internalizing antibody-drug conjugates display potent anti-cancer activity upon proteolytic release of monomethyl auristatin E in the subendothelial extracellular matrix. Int J Cancer 2016; 140:1670-1679. [PMID: 27943268 DOI: 10.1002/ijc.30569] [Citation(s) in RCA: 87] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Revised: 11/24/2016] [Accepted: 12/02/2016] [Indexed: 01/05/2023]
Abstract
Antibody-drug conjugates (ADCs) represent a promising class of biopharmaceuticals with the potential to localize at the tumor site and improve the therapeutic index of cytotoxic drugs. While it is generally believed that ADCs need to be internalized into tumor cells in order to display optimal therapeutic activity, it has recently been shown that non-internalizing antibodies can efficiently liberate disulfide-linked drugs at the extracellular tumor site, leading to potent anti-cancer activity in preclinical animal models. Here, we show that engineered variants of the F16 antibody, specific to a splice isoform of tenascin-C, selectively localize to the subendothelial tumor extracellular matrix in three mouse models of human cancer (U87, A431, MDA-MB-231). A site-specific coupling of F16 in IgG format with a monomethyl auristatin E (MMAE) derivative, featuring a valine-citrulline dipeptide linker equipped with a self-immolative spacer, yielded an ADC product, which cured tumor-bearing mice at a dose of 7 mg/Kg. The observation of an efficient extracellular proteolytic cleavage of the valine-citrulline linker was surprising, as it has generally been assumed that this peptidic structure would be selectively cleaved by cathepsin B in intracellular compartments. The products described in this article may be useful for the treatment of human malignancies, as their cognate antigen is strongly expressed in the majority of human solid tumors, lymphomas and aggressive leukemias, while being virtually undetectable in most normal adult tissues.
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Affiliation(s)
- Rémy Gébleux
- Department of Applied Biosciences, Swiss Federal Institute of Technology (ETH Zürich), Zürich, CH-8093, Switzerland
| | - Marco Stringhini
- Department of Applied Biosciences, Swiss Federal Institute of Technology (ETH Zürich), Zürich, CH-8093, Switzerland
| | - Ruben Casanova
- Institute of Pathology, University Hospital Zurich, Zurich, CH-8091, Switzerland
| | - Alex Soltermann
- Institute of Pathology, University Hospital Zurich, Zurich, CH-8091, Switzerland
| | - Dario Neri
- Department of Applied Biosciences, Swiss Federal Institute of Technology (ETH Zürich), Zürich, CH-8093, Switzerland
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37
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Li YT, Nishikawa T, Kaneda Y. Platelet-cytokine Complex Suppresses Tumour Growth by Exploiting Intratumoural Thrombin-dependent Platelet Aggregation. Sci Rep 2016; 6:25077. [PMID: 27117228 PMCID: PMC4846878 DOI: 10.1038/srep25077] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2015] [Accepted: 04/08/2016] [Indexed: 02/07/2023] Open
Abstract
Tumours constitute unique microenvironments where various blood cells and factors are exposed as a result of leaky vasculature. In the present study, we report that thrombin enrichment in B16F10 melanoma led to platelet aggregation, and this property was exploited to administer an anticancer cytokine, interferon-gamma induced protein 10 (IP10), through the formation of a platelet-IP10 complex. When intravenously infused, the complex reached platelet microaggregates in the tumour. The responses induced by the complex were solely immune-mediated, and tumour cytotoxicity was not observed. The complex suppressed the growth of mouse melanoma in vivo, while both platelets and the complex suppressed the accumulation of FoxP3+ regulatory T cells in the tumour. These results demonstrated that thrombin-dependent platelet aggregation in B16F10 tumours defines platelets as a vector to deliver anticancer cytokines and provide specific treatment benefits.
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Affiliation(s)
- Yu-Tung Li
- Division of Gene Therapy Science, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Tomoyuki Nishikawa
- Division of Gene Therapy Science, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Yasufumi Kaneda
- Division of Gene Therapy Science, Graduate School of Medicine, Osaka University, Osaka, Japan
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38
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Tumour imaging by the detection of fibrin clots in tumour stroma using an anti-fibrin Fab fragment. Sci Rep 2016; 6:23613. [PMID: 27009516 PMCID: PMC4806360 DOI: 10.1038/srep23613] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2015] [Accepted: 03/10/2016] [Indexed: 12/26/2022] Open
Abstract
The diagnosis of early and aggressive types of cancer is important for providing effective cancer therapy. Cancer-induced fibrin clots exist only within lesions. Previously, we developed a monoclonal antibody (clone 102-10) that recognizes insoluble fibrin but not fibrinogen or soluble fibrin and confirmed that fibrin clots form continuously in various cancers. Here, we describe the development of a Fab fragment probe of clone 102-10 for tumour imaging. The distribution of 102-10 Fab was investigated in genetically engineered mice bearing pancreatic ductal adenocarcinoma (PDAC), and its effect on blood coagulation was examined. Immunohistochemical and ex vivo imaging revealed that 102-10 Fab was distributed selectively in fibrin clots in PDAC tumours 3 h after injection and that it disappeared from the body after 24 h. 102-10 Fab had no influence on blood coagulation or fibrinolysis. Tumour imaging using anti-fibrin Fab may provide a safe and effective method for the diagnosis of invasive cancers by detecting fibrin clots in tumour stroma.
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Abstract
INTRODUCTION Clinical use of SN38 is limited by its poor aqueous solubility and hydrolysis of the lactone ring at pH > 6 to inactive carboxylate form. A variety of drug delivery systems have been developed to improve the solubility and stability of SN38, and reduce its toxicity. A few noteworthy formulations with some success in initial phases of clinical trials are reported. AREAS COVERED This work aims to provide a comprehensive review on the various techniques and strategies employed (physical, chemical and biological methods) to improve physicochemical properties and to deliver the drug efficiently to the cancer cells. Physical methods such as nanoparticle encapsulation, cyclodextrin complexation; chemical methods such as prodrugs, polymer-, albumin- and immunoconjugates; and enzyme activated prodrug therapy are discussed. EXPERT OPINION The challenges in SN38 drug delivery may be overcome by two ways: ensuring multiple layers of protection against degradation and slow but sustained release of therapeutically effective drug concentrations. It may also be achieved by preparing a polymer-drug conjugate and further encapsulating the conjugate in suitable carrier system; tumor-targeted SN38 delivery by using immunoconjugates, enzyme-activated prodrug therapy and antibody-directed nanoparticle delivery. However, selection of a suitable ligand for tumor targeting and use of safe and biocompatible nanoparticle systems play an important role in realizing this goal.
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Affiliation(s)
- Srinath Palakurthi
- a Irma Lerma Rangel College of Pharmacy, Texas A&M Health Science Center, Department of Pharmaceutical Sciences , Kingsville, TX 78363, USA +1 3612210748 ; +1 3612210793 ;
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Abstract
In this review, polymeric micelles as drug-targeting carriers are concisely explained. In the first introduction part, I describe a brief history of polymer micelle's research for drug targeting, and then I explain this review's focus. Since most other review articles concerning polymeric micelle carriers explain only what was achieved in the polymeric micelle's research, I describe this review by focusing on what was not done. In the second part, I take up three characteristics of polymeric micelle carriers by comparing their advantages and disadvantages, what was done and what was not done in the past studies, and what is easily achieved and what is difficult to be achieved with polymeric micelles. In the last part, I discuss three common problems of nano-sized drug carrier systems including polymeric micelles, and then I add a few comments on these problems.
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Affiliation(s)
- Masayuki Yokoyama
- Division of Medical Engineering, Research Center for Medical Sciences, The Jikei University School of Medicine , Tokyo , Japan
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Sato R, Obonai T, Tsumura R, Tsumoto K, Koga Y, Yasunaga M, Matsumura Y. Preparation and characterization of anti-tissue factor single-chain variable fragment antibody for cancer diagnosis. Cancer Sci 2014; 105:1631-7. [PMID: 25311092 PMCID: PMC4317963 DOI: 10.1111/cas.12557] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2014] [Revised: 10/06/2014] [Accepted: 10/07/2014] [Indexed: 12/21/2022] Open
Abstract
Tissue factor (TF), which serves as the initiator of the extrinsic blood coagulation cascade, has been found to be overexpressed in various solid tumors, especially brain tumors, pancreatic cancer, and gastric cancer. Overexpression of TF is considered to contribute to the high incidence of thrombotic complications and poor prognosis in patients with such cancers. Therefore, detection or targeting of TF may be a promising approach for the diagnosis and treatment of solid tumors that are known to overexpress the protein. Here, we used the recombinant DNA technology to develop an anti-TF single-chain Fv (scFv) of small size and high affinity for its target. The biochemical characteristics of the anti-TF scFv were evaluated using surface plasmon resonance (SPR) sensing and flow cytometry. The data obtained showed that the affinity of the anti-TF scFv was 2.04 × 10−8 (KD), and that the protein showed significant binding to the cancer cells. Then, Alexa 647-labeled anti-TF scFv and anti-TF IgG were administered to mice bearing chemically induced spontaneous tumors. The maximum tumor to background ratios of anti-TF scFv and anti-TF IgG were obtained 3 and 24 h after the injections, respectively. This study indicates anti-TF scFv may be suitable as an imaging probe for the diagnosis of solid tumors.
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Affiliation(s)
- Ryuta Sato
- Division of Developmental Therapeutics, Research Center for Innovative Oncology, National Cancer Center Hospital East, Chiba, Japan; Laboratory of Cancer Biology, Department of Integrated Biosciences, Graduate School of Frontier Sciences, The University of Tokyo, Chiba, Japan
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Putelli A, Kiefer JD, Zadory M, Matasci M, Neri D. A fibrin-specific monoclonal antibody from a designed phage display library inhibits clot formation and localizes to tumors in vivo. J Mol Biol 2014; 426:3606-18. [PMID: 25073100 DOI: 10.1016/j.jmb.2014.07.023] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2014] [Revised: 07/02/2014] [Accepted: 07/16/2014] [Indexed: 11/28/2022]
Abstract
Fibrin formation from fibrinogen is a rare process in the healthy organism but is a pathological feature of thrombotic events, cancer and a wide range of inflammatory conditions. We have designed and constructed an antibody phage display library (containing 13 billion clones) for the selective recognition of the N-terminal peptide of fibrin alpha chain. The key structural feature for selective fibrin binding was a K94E mutation in the VH domain. From this library, an antibody was isolated (termed AP2), which recognizes the five N-terminal amino acids of fibrin with high affinity (Kd=44nM), but does not bind to fibrinogen. The AP2 antibody could be expressed in various formats (scFv, small immune protein and IgG) and inhibited fibrin clot formation in a concentration-dependent manner. Moreover, the AP2 antibody stained the fibrin-rich provisional stroma in solid tumors but did not exhibit any detectable staining toward normal tissues. Using a radioiodinated antibody preparation and quantitative biodistribution studies in tumor-bearing mice, AP2 was shown to selectively localize to fibrin-rich F9 murine teratocarcinomas, but not to SKRC-52 human kidney cancer xenografts. Collectively, the experiments indicate that the AP2 antibody recognizes fibrin in vitro and in vivo. The antibody may facilitate the development of fibrin-specific therapeutic agents.
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Affiliation(s)
- Alessia Putelli
- Department of Chemistry and Applied Biosciences, Swiss Federal Institute of Technology, Vladimir-Prelog-Weg 2, CH-8093 Zürich, Switzerland.
| | - Jonathan D Kiefer
- Department of Chemistry and Applied Biosciences, Swiss Federal Institute of Technology, Vladimir-Prelog-Weg 2, CH-8093 Zürich, Switzerland.
| | - Matthias Zadory
- Department of Chemistry and Applied Biosciences, Swiss Federal Institute of Technology, Vladimir-Prelog-Weg 2, CH-8093 Zürich, Switzerland.
| | - Mattia Matasci
- Philochem AG, Libernstrasse 3, CH-8112 Otelfingen, Switzerland.
| | - Dario Neri
- Department of Chemistry and Applied Biosciences, Swiss Federal Institute of Technology, Vladimir-Prelog-Weg 2, CH-8093 Zürich, Switzerland.
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Abstract
It is expected that the incidence of various adverse effects of anticancer agents maybe decreased owing to the reduced drug distribution in normal tissue. Anticancer agent incorporating nanoparticles including micelles and liposomes can evade non-specific capture by the reticuloendothelial system because the outer shell of the nanoparticles is covered with polyethylene glycol. Consequently, the micellar and liposomal carrier can be delivered selectively to a tumor by utilizing the enhanced permeability and retention effect. Presently, several anticancer agent-incorporating nano-carrier systems are under preclinical and clinical evaluation. Several drug delivery system formulations have been approved worldwide. Regarding a pipeline of clinical development of anticancer agent incorporating micelle carrier system, several clinical trials are now underway not only in Japan but also in other countries. A Phase 3 trial of NK105, a paclitaxel incorporating micelle is now underway. In this paper, preclinical and clinical studies of NK105, NC-6004, cisplatin incorporating micelle, NC-6300, epirubicin incorporating micelle and the concept of cancer stromal targeting therapy using nanoparticles and monoclonal antibodies against cancer related stromal components are reviewed.
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Affiliation(s)
- Yasuhiro Matsumura
- Division of Developmental Therapeutics, Research Center for Innovative Oncology, National Cancer Center Hospital East, Kashiwa, Japan
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Mikhail AS, Eetezadi S, Ekdawi SN, Stewart J, Allen C. Image-based analysis of the size- and time-dependent penetration of polymeric micelles in multicellular tumor spheroids and tumor xenografts. Int J Pharm 2014; 464:168-77. [DOI: 10.1016/j.ijpharm.2014.01.010] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2013] [Revised: 11/25/2013] [Accepted: 01/06/2014] [Indexed: 01/02/2023]
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Hisada Y, Yasunaga M, Hanaoka S, Saijou S, Sugino T, Tsuji A, Saga T, Tsumoto K, Manabe S, Kuroda JI, Kuratsu JI, Matsumura Y. Discovery of an uncovered region in fibrin clots and its clinical significance. Sci Rep 2014; 3:2604. [PMID: 24008368 PMCID: PMC3764439 DOI: 10.1038/srep02604] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2013] [Accepted: 08/22/2013] [Indexed: 12/22/2022] Open
Abstract
Despite the pathological importance of fibrin clot formation, little is known about the structure of these clots because X-ray and nuclear magnetic resonance (NMR) analyses are not applicable to insoluble proteins. In contrast to previously reported anti-fibrin monoclonal antibodies (mAbs), our anti-fibrin clot mAb (clone 102–10) recognises an uncovered region that is exposed only when a fibrin clot forms. The epitope of the 102–10 mAb was mapped to a hydrophobic region on the Bβ chain that interacted closely with a counterpart region on the γ chain in a soluble state. New anti-Bβ and anti-γ mAbs specific to peptides lining the discovered region appeared to bind exclusively to fibrin clots. Furthermore, the radiolabelled 102–10 mAb selectively accumulated in mouse spontaneous tumours, and immunohistochemistry using this mAb revealed greater fibrin deposition in World Health Organization (WHO) grade 4 glioma than in lower-grade gliomas. Because erosive tumours are apt to cause micro-haemorrhages, even early asymptomatic tumours detected with a radiolabelled 102-10 mAb may be aggressively malignant.
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Affiliation(s)
- Yohei Hisada
- Division of Developmental Therapeutics, Research Centre for Innovative Oncology, National Cancer Centre Hospital East, 6-5-1 Kashiwanoha, Kashiwa, Chiba, Japan
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Starmans LWE, van Duijnhoven SMJ, Rossin R, Aime S, Daemen MJAP, Nicolay K, Grüll H. SPECT imaging of fibrin using fibrin-binding peptides. CONTRAST MEDIA & MOLECULAR IMAGING 2013; 8:229-37. [PMID: 23606426 DOI: 10.1002/cmmi.1521] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2012] [Revised: 11/01/2012] [Accepted: 11/12/2012] [Indexed: 01/24/2023]
Abstract
Noninvasive detection of fibrin in vivo using diagnostic imaging modalities may improve clinical decision-making on possible therapeutic options in atherosclerosis, cancer and thrombus-related pathologies such as pulmonary embolism and deep venous thrombosis. The aim of this study was to assess the potential of a novel (111)In-labeled fibrin-binding peptide (FibPep) to visualize thrombi in mice noninvasively using single-photon emission computed tomography (SPECT). FibPep and a negative control peptide (NCFibPep) were synthesized and their fibrin-binding properties were assessed in vitro. FibPep showed enhanced binding compared with NCFibPep to both fibrin and blood clots. FibPep bound to fibrin with a dissociation constant (K(d)) of 0.8 μ m, whereas NCFibPep displayed at least a 100-fold lower affinity towards fibrin. A FeCl3 -injury carotid artery thrombosis mouse model was used to evaluate the peptides in vivo. FibPep and NCFibPep displayed rapid blood clearance and were eliminated via the renal pathway. In vivo SPECT imaging using FibPep allowed clear visualization of thrombi. Ex vivo biodistribution showed significantly increased uptake of FibPep in the thrombus-containing carotid in comparison to the noninjured carotid (5.7 ± 0.7 and 0.6 ± 0.4% injected dose per gram (%ID g(-1)), respectively; p < 0.01; n = 4), whereas nonspecific NCFibPep did not (0.4 ± 0.2 and 0.3 ± 0.0%ID g(-1), respectively; n = 4). In conclusion, FibPep displayed high affinity towards fibrin in vitro and rapid blood clearance in vivo, and allowed sensitive detection of thrombi using SPECT imaging. Therefore, this particular imaging approach may provide a new tool to diagnose and monitor diseases such as atherosclerosis and cancer.
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Affiliation(s)
- Lucas W E Starmans
- Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, The Netherlands
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Targeted therapy of spontaneous murine pancreatic tumors by polymeric micelles prolongs survival and prevents peritoneal metastasis. Proc Natl Acad Sci U S A 2013; 110:11397-402. [PMID: 23801758 DOI: 10.1073/pnas.1301348110] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Nanoscaled drug-loaded carriers are of particular interest for efficient tumor therapy as numerous studies have shown improved targeting and efficacy. Nevertheless, most of these studies have been performed against allograft and xenograft tumor models, which have altered microenvironment features affecting the accumulation and penetration of nanocarriers. Conversely, the evaluation of nanocarriers on genetically engineered mice, which can gradually develop clinically relevant tumors, permits the validation of their design under normal processes of immunity, angiogenesis, and inflammation. Therefore, considering the poor prognosis of pancreatic cancer, we used the elastase 1-promoted luciferase and Simian virus 40 T and t antigens transgenic mice, which develop spontaneous bioluminescent pancreatic carcinoma, and showed that long circulating micellar nanocarriers, incorporating the parent complex of oxaliplatin, inhibited the tumor growth as a result of their efficient accumulation and penetration in the tumors. The reduction of the photon flux from the endogenous tumor by the micelles correlated with the decrease of serum carbohydrate-associated antigen 19-9 marker. Micelles also reduced the incidence of metastasis and ascites, extending the survival of the transgenic mice.
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Goszczyński T, Nevozhay D, Wietrzyk J, Omar MS, Boratyński J. The antileukemic activity of modified fibrinogen–methotrexate conjugate. Biochim Biophys Acta Gen Subj 2013; 1830:2526-30. [DOI: 10.1016/j.bbagen.2012.11.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2012] [Revised: 11/07/2012] [Accepted: 11/10/2012] [Indexed: 01/29/2023]
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Manabe S, Machida H, Aihara Y, Yasunaga M, Ito Y, Matsumura Y. Development of a diketopiperazine-forming dipeptidyl Gly-Pro spacer for preparation of an antibody–drug conjugate. MEDCHEMCOMM 2013. [DOI: 10.1039/c3md00075c] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Yasunaga M, Manabe S, Tarin D, Matsumura Y. Tailored immunoconjugate therapy depending on a quantity of tumor stroma. Cancer Sci 2012; 104:231-7. [PMID: 23121194 DOI: 10.1111/cas.12062] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2012] [Revised: 10/04/2012] [Accepted: 10/31/2012] [Indexed: 12/13/2022] Open
Abstract
The purpose of this study was to clarify the appropriate combination of targeting antibody and conjugate-design of anti-tumor immunoconjugate depending on a quantity of tumor stroma. Most human solid tumors including pancreatic cancer (PC) forming hypovascular and stroma-rich tumor hinders the penetration of monoclonal antibodies (mAbs) into the cells, and that leads to failure of the conventional cell-targeting immunoconjugate strategy. To overcome this drawback, SN-38 as topoisomerase 1 inhibitor was conjugated to a mAb to collagen 4, a plentiful component of the tumor stroma via ester-bond. The immunoconjugate, which was able to release SN-38 in physiological condition outside the cells, was effective to stroma-rich PC-tumor. On the other hand, anti-CD 20 mAb-PEG-SN-38 via carbamate-bond as conventional immunoconjugate, enabled SN-38 to be released by a carboxylesterase inside of the tumor cell following the internalization, showed strong anti-tumor activity against malignant lymphoma as hypervascular and stroma-poor tumor. The conjugate-design, in parallel with the choice of targeting antibodies, should be selected to maximize the therapeutic effect in each individual tumor having a distinct stromal structure.
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Affiliation(s)
- Masahiro Yasunaga
- Investigative Treatment Division, Research Center for Innovative Oncology, National Cancer Center Hospital East, Kashiwa, Chiba, Japan
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