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Guo Z, Jing X, Sun X, Sun S, Yang Y, Cao Y. Tumor angiogenesis and anti-angiogenic therapy. Chin Med J (Engl) 2024; 137:2043-2051. [PMID: 39051171 PMCID: PMC11374217 DOI: 10.1097/cm9.0000000000003231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2023] [Indexed: 07/27/2024] Open
Abstract
ABSTRACT Anti-angiogenic drugs (AADs), which mainly target the vascular endothelial growth factor-A signaling pathway, have become a therapeutic option for cancer patients for two decades. During this period, tremendous clinical experience of anti-angiogenic therapy has been acquired, new AADs have been developed, and the clinical indications for AAD treatment of various cancers have been expanded using monotherapy and combination therapy. However, improvements in the therapeutic outcomes of clinically available AADs and the development of more effective next-generation AADs are still urgently required. This review aims to provide historical and perspective views on tumor angiogenesis to allow readers to gain mechanistic insights and learn new therapeutic development. We revisit the history of concept initiation and AAD discovery, and summarize the up-to-date clinical translation of anti-angiogenic cancer therapy in this field.
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Affiliation(s)
- Ziheng Guo
- Department of Pancreatic Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Xu Jing
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institute, Stockholm 17177, Sweden
| | - Xiaoting Sun
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institute, Stockholm 17177, Sweden
- Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vison and Brain Health), School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Shishuo Sun
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institute, Stockholm 17177, Sweden
- Cancer Institute, the First Clinical Medical College, Xuzhou Medical University, Xuzhou, Jiangsu 221000, China
| | - Yunlong Yang
- Department of Cellular and Genetic Medicine, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - Yihai Cao
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institute, Stockholm 17177, Sweden
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Maji D, Miguela V, Cameron AD, Campbell DA, Sasset L, Yao X, Thompson AT, Sussman C, Yang D, Miller R, Drozdz MM, Liberatore RA. Enhancing In Vivo Electroporation Efficiency through Hyaluronidase: Insights into Plasmid Distribution and Optimization Strategies. Pharmaceutics 2024; 16:547. [PMID: 38675208 PMCID: PMC11053992 DOI: 10.3390/pharmaceutics16040547] [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: 03/01/2024] [Revised: 04/04/2024] [Accepted: 04/08/2024] [Indexed: 04/28/2024] Open
Abstract
Electroporation (EP) stands out as a promising non-viral plasmid delivery strategy, although achieving optimal transfection efficiency in vivo remains a challenge. A noteworthy advancement in the field of in vivo EP is the application of hyaluronidase, an enzyme with the capacity to degrade hyaluronic acid in the extracellular matrix, which thereby enhances DNA transfer efficiency by 2- to 3-fold. This paper focuses on elucidating the mechanism of hyaluronidase's impact on transfection efficiency. We demonstrate that hyaluronidase promotes a more uniform distribution of plasmid DNA (pDNA) within skeletal muscle. Additionally, our study investigates the effect of the timing of hyaluronidase pretreatment on EP efficiency by including time intervals of 0, 5, and 30 min between hyaluronidase treatment and the application of pulses. Serum levels of the pDNA-encoded transgene reveal a minimal influence of the hyaluronidase pretreatment time on the final serum protein levels following delivery in both mice and rabbit models. Leveraging bioimpedance measurements, we capture morphological changes in muscle induced by hyaluronidase treatment, which result in a varied pDNA distribution. Subsequently, these findings are employed to optimize EP electrical parameters following hyaluronidase treatment in animal models. This paper offers novel insights into the potential of hyaluronidase in enhancing the effectiveness of in vivo EP, as well as guides optimized electroporation strategies following hyaluronidase use.
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Affiliation(s)
- Debnath Maji
- RenBio Inc., Long Island City, New York, NY 11101, USA
| | - Verónica Miguela
- RenBio Inc., Long Island City, New York, NY 11101, USA
- Instituto de Neurociencias, Consejo Superior de Investigaciones Científicas—Universidad Miguel Hernández de Elche, Sant Joan d’Alacant, 03550 Alicante, Spain
| | | | | | - Linda Sasset
- RenBio Inc., Long Island City, New York, NY 11101, USA
| | - Xin Yao
- RenBio Inc., Long Island City, New York, NY 11101, USA
| | | | | | - David Yang
- RenBio Inc., Long Island City, New York, NY 11101, USA
- Department of Genetics, Albert Einstein College of Medicine, Bronx, NY 10461, USA
| | - Robert Miller
- RenBio Inc., Long Island City, New York, NY 11101, USA
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Okano F, Saito T, Minamida Y, Kobayashi S, Ido T, Miyauchi Y, Wasai U, Akazawa D, Kume M, Ishibashi M, Jiang K, Aicher A, Heeschen C, Yonehara T. Identification of Membrane-expressed CAPRIN-1 as a Novel and Universal Cancer Target, and Generation of a Therapeutic Anti-CAPRIN-1 Antibody TRK-950. CANCER RESEARCH COMMUNICATIONS 2023; 3:640-658. [PMID: 37082579 PMCID: PMC10112292 DOI: 10.1158/2767-9764.crc-22-0310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 10/22/2022] [Accepted: 03/21/2023] [Indexed: 04/22/2023]
Abstract
Specific targets for cancer treatment are highly desirable, but still remain to be discovered. While previous reports suggested that CAPRIN-1 localizes in the cytoplasm, here we now show that part of this molecule is strongly expressed on the cell membrane surface in most solid cancers, but not normal tissues. Notably, the membrane expression of CAPRIN-1 extended to the subset of highly tumorigenic cancer stem cells and epithelial-mesenchymal transition (EMT)-induced metastatic cancer cells. In addition, we revealed that cancer cells with particularly high CAPRIN-1 surface expression exhibited enhanced tumorigenicity. We generated a therapeutic humanized anti-CAPRIN-1 antibody (TRK-950), which strongly and specifically binds to various cancer cells and shows antitumor effects via engagement of immune cells. TRK-950 was further developed as a new cancer drug and a series of preclinical studies demonstrates its therapeutic potency in tumor-bearing mouse models and safety in a relevant cynomolgus monkey model. Together, our data demonstrate that CAPRIN-1 is a novel and universal target for cancer therapies. A phase I clinical study of TRK-950 has been completed (NCT02990481) and a phase Ib study (combination with approved drugs) is currently underway (NCT03872947) in the United States and France. In parallel, a phase I study in Japan is in progress as well (NCT05423262). Significance Antibody-based cancer therapies have been demonstrated to be effective, but are only approved for a limited number of targets, because the majority of these markers is shared with healthy tissue, which may result in adverse effects. Here, we have successfully identified CAPRIN-1 as a novel truly cancer-specific target, universally expressed on membranes of various cancer cells including cancer stem cells. Clinical studies are underway for the anti-CAPRIN-1 therapeutic antibody TRK-950.
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Affiliation(s)
- Fumiyoshi Okano
- Toray Industries, Inc., New Frontiers Research Laboratories, Kamakura, Kanagawa, Japan
| | - Takanori Saito
- Toray Industries, Inc., New Frontiers Research Laboratories, Kamakura, Kanagawa, Japan
| | - Yoshitaka Minamida
- Toray Industries, Inc., New Frontiers Research Laboratories, Kamakura, Kanagawa, Japan
| | - Shinichi Kobayashi
- Toray Industries, Inc., New Frontiers Research Laboratories, Kamakura, Kanagawa, Japan
| | - Takayoshi Ido
- Toray Industries, Inc., New Frontiers Research Laboratories, Kamakura, Kanagawa, Japan
| | | | - Ukei Wasai
- Toray Industries, Inc., New Frontiers Research Laboratories, Kamakura, Kanagawa, Japan
| | - Daisuke Akazawa
- Toray Industries, Inc., New Frontiers Research Laboratories, Kamakura, Kanagawa, Japan
| | - Masahiko Kume
- Toray Industries, Inc., New Frontiers Research Laboratories, Kamakura, Kanagawa, Japan
| | - Masaki Ishibashi
- Toray Industries, Inc., New Frontiers Research Laboratories, Kamakura, Kanagawa, Japan
| | - Ke Jiang
- Pancreatic Cancer Heterogeneity, Candiolo Cancer Institute – FPO – IRCCS, Candiolo, Torino, Italy
- Center for Single-Cell Omics and Key Laboratory of Oncogenes and Related Genes, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
| | - Alexandra Aicher
- Graduate Institute for Biomedical Sciences Precision Immunotherapy Group China Medical University, North District Taichung City, Taiwan
| | - Christopher Heeschen
- Pancreatic Cancer Heterogeneity, Candiolo Cancer Institute – FPO – IRCCS, Candiolo, Torino, Italy
- Center for Single-Cell Omics and Key Laboratory of Oncogenes and Related Genes, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
| | - Tetsu Yonehara
- Toray Industries, Inc., New Frontiers Research Laboratories, Kamakura, Kanagawa, Japan
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Banik SSR, Kushnir N, Doranz BJ, Chambers R. Breaking barriers in antibody discovery: harnessing divergent species for accessing difficult and conserved drug targets. MAbs 2023; 15:2273018. [PMID: 38050985 DOI: 10.1080/19420862.2023.2273018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 10/16/2023] [Indexed: 12/07/2023] Open
Abstract
To exploit highly conserved and difficult drug targets, including multipass membrane proteins, monoclonal antibody discovery efforts increasingly rely on the advantages offered by divergent species such as rabbits, camelids, and chickens. Here, we provide an overview of antibody discovery technologies, analyze gaps in therapeutic antibodies that stem from the historic use of mice, and examine opportunities to exploit previously inaccessible targets through discovery now possible in alternate species. We summarize the clinical development of antibodies raised from divergent species, discussing how these animals enable robust immune responses against highly conserved binding sites and yield antibodies capable of penetrating functional pockets via long HCDR3 regions. We also discuss the value of pan-reactive molecules often produced by these hosts, and how these antibodies can be tested in accessible animal models, offering a faster path to clinical development.
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Li L, Wen Y, Wrapp D, Jeong J, Zhao P, Xiong W, Atkins CL, Shan Z, Hui D, McLellan JS, Zhang N, Ju C, An Z. A novel humanized Chi3l1 blocking antibody attenuates acetaminophen-induced liver injury in mice. Antib Ther 2022; 6:1-12. [PMID: 36683763 PMCID: PMC9847341 DOI: 10.1093/abt/tbac027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 10/24/2022] [Accepted: 10/27/2022] [Indexed: 11/09/2022] Open
Abstract
Acetaminophen (APAP) overdose is a leading cause of acute liver injury in the USA. The chitinase 3-like-1 (Chi3l1) protein contributes to APAP-induced liver injury (AILI) by promoting hepatic platelet recruitment. Here, we report the development of a Chi3l1-targeting antibody as a potential therapy for AILI. By immunizing a rabbit successively with the human and mouse Chi3l1 proteins, we isolated cross-reactive monoclonal antibodies (mAbs) from single memory B cells. One of the human and mouse Chi3l1 cross-reactive mAbs was humanized and characterized in both in vitro and in vivo biophysical and biological assays. X-ray crystallographic analysis of the lead antibody C59 in complex with the human Chi3l1 protein revealed that the kappa light contributes to majority of the antibody-antigen interaction; and that C59 binds to the 4α-5β loop and 4α-helix of Chi3l1, which is a functional epitope and hotspot for the development of Chi3l1 blocking antibodies. We humanized the C59 antibody by complementarity-determining region grafting and kappa chain framework region reverse mutations. The humanized C59 antibody exhibited similar efficacy as the parental rabbit antibody C59 in attenuating AILI in vivo. Our findings validate Chi3l1 as a potential drug target for AILI and provide proof of concept of developing Chi3l1 blocking antibody as a therapy for the treatment of AILI.
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Affiliation(s)
- Leike Li
- Texas Therapeutics Institute, Brown Foundation Institute of Molecular Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX 77030, USA
| | - Yankai Wen
- Department of Anesthesiology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX 77030, USA
| | - Daniel Wrapp
- Department of Molecular Biosciences, The University of Texas at Austin, Austin, TX 78712, USA
| | - Jongmin Jeong
- Department of Anesthesiology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX 77030, USA
| | - Peng Zhao
- Texas Therapeutics Institute, Brown Foundation Institute of Molecular Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX 77030, USA
| | - Wei Xiong
- Texas Therapeutics Institute, Brown Foundation Institute of Molecular Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX 77030, USA
| | - Constance Lynn Atkins
- Department of Anesthesiology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX 77030, USA
| | - Zhao Shan
- Department of Anesthesiology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX 77030, USA,Center for Life Sciences, School of Life Sciences, Yunnan University, Kunming 650106, China
| | - Deng Hui
- Texas Therapeutics Institute, Brown Foundation Institute of Molecular Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX 77030, USA
| | - Jason S McLellan
- Department of Molecular Biosciences, The University of Texas at Austin, Austin, TX 78712, USA
| | - Ningyan Zhang
- To whom correspondence should be addressed. Ningyan Zhang, Cynthia Ju, Zhiqiang An. , ,
| | - Cynthia Ju
- To whom correspondence should be addressed. Ningyan Zhang, Cynthia Ju, Zhiqiang An. , ,
| | - Zhiqiang An
- To whom correspondence should be addressed. Ningyan Zhang, Cynthia Ju, Zhiqiang An. , ,
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Ruiz M, Zhang N, Sood AK, An Z. Antibody therapeutics for epithelial ovarian cancer. Expert Opin Biol Ther 2022; 22:1379-1391. [PMID: 36302510 PMCID: PMC10375545 DOI: 10.1080/14712598.2022.2141565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
INTRODUCTION High-grade serous ovarian carcinoma (HGSC) is an aggressive subtype of epithelial ovarian carcinoma (EOC) and remains the most lethal gynecologic cancer. A lack of effective and tolerable therapeutic options and nonspecific symptoms at presentation with advanced stage of disease are among the challenges in the management of the disease. AREAS COVERED An overview of ovarian cancer, followed by a discussion of the current therapeutic regimes and challenges that arise during and after the treatment of EOC. We discuss different formats of antibody therapeutics and their usage in targeting validated targets implicated in ovarian cancer, as well as three emerging novel proteins as examples recently implicated in their contribution to adaptive resistance in ovarian cancer. EXPERT OPINION Antibody therapeutics allow for a unique and effective way to target proteins implicated in cancer and other diseases, and have the potential to radically change the outcomes of patients suffering from ovarian cancer. The vast array of targets that have been implicated in ovarian cancer and yet the lack of effective therapeutic options for patients further stresses the importance of discovering novel proteins that can be targeted, as well as predictive biomarkers that can inform the stratification of patients into treatment-specific populations.
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Affiliation(s)
- Mason Ruiz
- Texas Therapeutics Institute, Brown Foundation Institute of Molecular Medicine, The University of Texas Health Science Center at Houston, Houston, Texas 77030, USA
| | - Ningyan Zhang
- Texas Therapeutics Institute, Brown Foundation Institute of Molecular Medicine, The University of Texas Health Science Center at Houston, Houston, Texas 77030, USA
| | - Anil K Sood
- Department of Gynecologic Oncology and Reproductive Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Zhiqiang An
- Texas Therapeutics Institute, Brown Foundation Institute of Molecular Medicine, The University of Texas Health Science Center at Houston, Houston, Texas 77030, USA
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Hadjimichael AC, Foukas AF, Papadimitriou E, Kaspiris A, Peristiani C, Chaniotakis I, Kotsari M, Pergaris A, Theocharis S, Sarantis P, Christopoulou M, Psyrri A, Mavrogenis AF, Savvidou OD, Papagelopoulos PJ, Armakolas A. Doxycycline inhibits the progression of metastases in early-stage osteosarcoma by downregulating the expression of MMPs, VEGF and ezrin at primary sites. Cancer Treat Res Commun 2022; 32:100617. [PMID: 36027697 DOI: 10.1016/j.ctarc.2022.100617] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Revised: 07/29/2022] [Accepted: 08/01/2022] [Indexed: 06/15/2023]
Abstract
INTRODUCTION Osteosarcoma (OS) is the most common primary osseous malignant tumour, with high propensity to metastasise in lungs. Pulmonary micro-metastases are present in up to 80% of patients at initial diagnosis and they are associated with significantly worse prognosis. Doxycycline (Dox) is a synthetic tetracycline that has been shown to have anti-cancer properties in vitro and in vivo, and inhibit angiogenesis - effects that may prove beneficial for several types of cancer. The aim of the present work was to study how Dox affects OS cell growth in vitro and in vivo and OS-driven pulmonary metastasis in vivo. METHODS In vitro, the effect of Dox was measured in MG-63 and 143B human OS cell viability, apoptosis, invasion and migration. In vivo, highly metastatic 143B cells were orthotopically implanted into the tibia of SCID mice. The tumour growth and pulmonary metastases between Dox treated and untreated, non-amputated and early amputated xenografts were examined. RESULTS In vitro, Dox decreased viability, inhibited invasion, migration, and induced the apoptosis of OS cells. In vivo, Dox significantly enhanced tumour necrosis at primary OS sites, similarly to its in vitro effect, and downregulated the expression of Ki67, MMP2, MMP9, VEGFA and ezrin. It also decreased circulating VEGFA and MMP9 protein levels, in line with the decreased metastatic burden in Dox-treated mice (non-amputated and early-amputated). CONCLUSIONS Reprofiling of Dox can prevent the evolvement of pulmonary micro-metastases to clinically detectable macro-metastases and suppress the lethal progress of OS by inhibiting the expression of MMPs, VEGFA and ezrin at primary sites.
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Affiliation(s)
- Argyris C Hadjimichael
- Department of Orthopaedics, St Mary's Hospital, Imperial College Healthcare NHS Trust, Praed Street, W2 1NY, London, UK.
| | - Athanasios F Foukas
- Third Department of Orthopaedic surgery, "KAT" General Hospital of Athens, 2, Nikis Street, 14561, Kifissia, Greece.
| | - Evangelia Papadimitriou
- Laboratory of Molecular Pharmacology, Department of Pharmacy, University of Patras, 26504, Patras, Greece.
| | - Angelos Kaspiris
- Laboratory of Molecular Pharmacology, Department of Pharmacy, University of Patras, 26504, Patras, Greece.
| | - Chrysostomi Peristiani
- Medical School, National and Kapodistrian University of Athens,75, Mikras Asias Street, Goudi, 11527, Athens, Greece.
| | - Ioannis Chaniotakis
- Healthcare Directorate of the Hellenic Air Force General Staff, Athens, 3, P. Kanellopoulou Street, 11525, Athens, Greece.
| | - Maria Kotsari
- Physiology Laboratory, Athens Medical School, National and Kapodistrian University of Athens, 75, Mikras Asias Street, Physiology Lab, Bld 16, Goudi, 11527, Athens, Greece..
| | - Alexandros Pergaris
- First Department of Pathology, Medical School, National and Kapodistrian University of Athens, 75, Mikras Asias Street, Bld 10, Goudi, 11527 Athens, Greece.
| | - Stamatios Theocharis
- First Department of Pathology, Medical School, National and Kapodistrian University of Athens, 75, Mikras Asias Street, Bld 10, Goudi, 11527 Athens, Greece.
| | - Panagiotis Sarantis
- First Department of Pathology, Medical School, National and Kapodistrian University of Athens, 75, Mikras Asias Street, Bld 10, Goudi, 11527 Athens, Greece.
| | - Magdalini Christopoulou
- Laboratory of Molecular Pharmacology, Department of Pharmacy, University of Patras, 26504, Patras, Greece.
| | - Amanda Psyrri
- Section of Medical Oncology, Department of Internal Medicine, Faculty of Medicine, National and Kapodistrian University of Athens, Attikon University Hospital,1 Rimini Street, Chaidari, 12462, Athens, Greece.
| | - Andreas F Mavrogenis
- First Department of Orthopaedic Surgery, National and Kapodistrian University of Athens, Faculty of Medicine, Attikon University hospital, Athens,1 Rimini Street, Chaidari,12462, Athens, Greece..
| | - Olga D Savvidou
- First Department of Orthopaedic Surgery, National and Kapodistrian University of Athens, Faculty of Medicine, Attikon University hospital, Athens,1 Rimini Street, Chaidari,12462, Athens, Greece..
| | - Panayiotis J Papagelopoulos
- First Department of Orthopaedic Surgery, National and Kapodistrian University of Athens, Faculty of Medicine, Attikon University hospital, Athens,1 Rimini Street, Chaidari,12462, Athens, Greece..
| | - Athanasios Armakolas
- Physiology Laboratory, Athens Medical School, National and Kapodistrian University of Athens, 75, Mikras Asias Street, Physiology Lab, Bld 16, Goudi, 11527, Athens, Greece..
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Chen H, Chen Y, Deng M, John S, Gui X, Kansagra A, Chen W, Kim J, Lewis C, Wu G, Xie J, Zhang L, Huang R, Liu X, Arase H, Huang Y, Yu H, Luo W, Xia N, Zhang N, An Z, Zhang CC. Antagonistic anti-LILRB1 monoclonal antibody regulates antitumor functions of natural killer cells. J Immunother Cancer 2021; 8:jitc-2019-000515. [PMID: 32771992 PMCID: PMC7418854 DOI: 10.1136/jitc-2019-000515] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/01/2020] [Indexed: 01/17/2023] Open
Abstract
BACKGROUND Current immune checkpoint blockade strategies have been successful in treating certain types of solid cancer. However, checkpoint blockade monotherapies have not been successful against most hematological malignancies including multiple myeloma and leukemia. There is an urgent need to identify new targets for development of cancer immunotherapy. LILRB1, an immunoreceptor tyrosine-based inhibitory motif-containing receptor, is widely expressed on human immune cells, including B cells, monocytes and macrophages, dendritic cells and subsets of natural killer (NK) cells and T cells. The ligands of LILRB1, such as major histocompatibility complex (MHC) class I molecules, activate LILRB1 and transduce a suppressive signal, which inhibits the immune responses. However, it is not clear whether LILRB1 blockade can be effectively used for cancer treatment. METHODS First, we measured the LILRB1 expression on NK cells from cancer patients to determine whether LILRB1 upregulated on NK cells from patients with cancer, compared with NK cells from healthy donors. Then, we developed specific antagonistic anti-LILRB1 monoclonal antibodies and studied the effects of LILRB1 blockade on the antitumor immune function of NK cells, especially in multiple myeloma models, in vitro and in vivo xenograft model using non-obese diabetic (NOD)-SCID interleukin-2Rγ-null mice. RESULTS We demonstrate that percentage of LILRB1+ NK cells is significantly higher in patients with persistent multiple myeloma after treatment than that in healthy donors. Further, the percentage of LILRB1+ NK cells is also significantly higher in patients with late-stage prostate cancer than that in healthy donors. Significantly, we showed that LILRB1 blockade by our antagonistic LILRB1 antibody increased the tumoricidal activity of NK cells against several types of cancer cells, including multiple myeloma, leukemia, lymphoma and solid tumors, in vitro and in vivo. CONCLUSIONS Our results indicate that blocking LILRB1 signaling on immune effector cells such as NK cells may represent a novel strategy for the development of anticancer immunotherapy.
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Affiliation(s)
- Heyu Chen
- Department of Physiology, UT Southwestern Medical Center, Dallas, Texas, USA
| | - Yuanzhi Chen
- Texas Therapeutics Institute, Brown Foundation Institute of Molecular Medicine, University of Texas Health Science Center at Houston, Houston, Texas, USA.,School of Public Health, Xiamen University, Xiamen, Fujian, China
| | - Mi Deng
- Department of Physiology, UT Southwestern Medical Center, Dallas, Texas, USA
| | - Samuel John
- Department of Pediatrics, Pediatric Hematology- Oncology, UT Southwestern Medical Center, Dallas, Texas, USA
| | - Xun Gui
- Texas Therapeutics Institute, Brown Foundation Institute of Molecular Medicine, University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Ankit Kansagra
- Department of Hematology and Oncology, UT Southwestern Medical Center, Dallas, Texas, USA.,Harold C. Simmons Comprehensive Cancer Center, UT Southwestern Medical Center, Dallas, Texas, USA
| | - Weina Chen
- Department of Pathology, UT Southwestern Medical Center, Dallas, Texas, USA
| | - Jaehyup Kim
- Department of Pathology, UT Southwestern Medical Center, Dallas, Texas, USA
| | - Cheryl Lewis
- Harold C. Simmons Comprehensive Cancer Center, UT Southwestern Medical Center, Dallas, Texas, USA
| | - Guojin Wu
- Department of Physiology, UT Southwestern Medical Center, Dallas, Texas, USA
| | - Jingjing Xie
- Department of Physiology, UT Southwestern Medical Center, Dallas, Texas, USA
| | - Lingbo Zhang
- Department of Physiology, UT Southwestern Medical Center, Dallas, Texas, USA.,Department of Oncology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Ryan Huang
- Department of Physiology, UT Southwestern Medical Center, Dallas, Texas, USA
| | - Xiaoye Liu
- Department of Physiology, UT Southwestern Medical Center, Dallas, Texas, USA
| | - Hisashi Arase
- Department of Immunochemistry, Research Institute for Microbial Diseases and Laboratory of Immunochemistry, World Premier International Immunology Frontier Research Center, Osaka University, Osaka, Japan
| | - Yang Huang
- School of Public Health, Xiamen University, Xiamen, Fujian, China
| | - Hai Yu
- School of Public Health, Xiamen University, Xiamen, Fujian, China
| | - Wenxin Luo
- School of Public Health, Xiamen University, Xiamen, Fujian, China
| | - Ningshao Xia
- School of Public Health, Xiamen University, Xiamen, Fujian, China
| | - Ningyan Zhang
- Texas Therapeutics Institute, Brown Foundation Institute of Molecular Medicine, University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Zhiqiang An
- Texas Therapeutics Institute, Brown Foundation Institute of Molecular Medicine, University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Cheng Cheng Zhang
- Department of Physiology, UT Southwestern Medical Center, Dallas, Texas, USA
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Chen W, Kong Y, Li W, Zhou Y, Wu M, Chen T, Wu Y, Qiao H, Qiu Z, Qiu J. Generation and characterization of a humanized anti-IL-17A rabbit monoclonal antibody. Protein Expr Purif 2021; 187:105950. [PMID: 34363980 DOI: 10.1016/j.pep.2021.105950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Revised: 07/22/2021] [Accepted: 07/29/2021] [Indexed: 11/27/2022]
Abstract
Interleukin-17A (IL-17A) produced by Th17 cells, contributes to the pathogenesis of various autoimmune diseases by stimulating the release of cytokines and chemokines and its regulation. Anti-IL-17A antibody which blocks the function of IL-17A has been proved to be an effective treatment of autoimmune disease. The aim of our study was to generate a potential humanized anti-IL-17A therapeutic monoclonal antibody (mAb) through a comprehensive panel of in vitro and in vivo biological activity studies, as well as physicochemical characterization. HZD37-5, a humanized monoclonal antibody specifically recognizing N78 loci of IL-17A, binds to human and rhesus monkeys, blocks IL-17 induced signal transduction and the release of IL-6, IL-8, CXCL-1 and G-GSF. In an in vivo efficacy mouse model, HZD37-5 significantly inhibited human IL-17A induced-keratinocyte chemoattractant (KC) secretion in a dose-dependent manner. The pharmacokinetics (PK) study result of HZD37-5 in rhesus monkeys indicated that HZD37-5 had favorable PK characteristics with limited distribution (78.0-78.8 ml/kg), slow elimination (5.00-6.45 ml/day/kg), long half-life (9.1-10.7 days) and high bioavailability (103%) following a single IV or SC dose at 1.5 mg/kg. These findings provided a comprehensive preclinical characterization of HZD37-5 and supported that it may be developed as a potential therapeutic for the treatment of autoimmune diseases, including psoriasis, psoriatic arthritis, axial spondyloarthritis, etc.
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Affiliation(s)
- Wei Chen
- Qyuns Therapeutics Co.,Ltd., Taizhou, Jiangsu, 225300, China
| | - Yong Kong
- Qyuns Therapeutics Co.,Ltd., Taizhou, Jiangsu, 225300, China
| | - Wang Li
- Qyuns Therapeutics Co.,Ltd., Taizhou, Jiangsu, 225300, China
| | - Yi Zhou
- Qyuns Therapeutics Co.,Ltd., Taizhou, Jiangsu, 225300, China
| | - Meijuan Wu
- Qyuns Therapeutics Co.,Ltd., Taizhou, Jiangsu, 225300, China
| | - Tao Chen
- Qyuns Therapeutics Co.,Ltd., Taizhou, Jiangsu, 225300, China
| | - Yiliang Wu
- Qyuns Therapeutics Co.,Ltd., Taizhou, Jiangsu, 225300, China
| | - Huaiyao Qiao
- Qyuns Therapeutics Co.,Ltd., Taizhou, Jiangsu, 225300, China
| | - Zhihua Qiu
- Qyuns Therapeutics Co.,Ltd., Taizhou, Jiangsu, 225300, China
| | - Jiwan Qiu
- Qyuns Therapeutics Co.,Ltd., Taizhou, Jiangsu, 225300, China.
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10
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Filbert EL, Björck PK, Srivastava MK, Bahjat FR, Yang X. APX005M, a CD40 agonist antibody with unique epitope specificity and Fc receptor binding profile for optimal therapeutic application. Cancer Immunol Immunother 2021; 70:1853-1865. [PMID: 33392713 PMCID: PMC8195934 DOI: 10.1007/s00262-020-02814-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Accepted: 11/27/2020] [Indexed: 12/22/2022]
Abstract
Targeting CD40 with agonist antibodies is a promising approach to cancer immunotherapy. CD40 acts as a master regulator of immunity by mobilizing multiple arms of the immune system to initiate highly effective CD8 + T-cell-mediated responses against foreign pathogens and tumors. The clinical development of CD40 agonist antibodies requires careful optimization of the antibody to maximize therapeutic efficacy while minimizing adverse effects. Both epitope specificity and isotype are critical for CD40 agonist antibody mechanism of action and potency. We developed a novel antibody, APX005M, which binds with high affinity to the CD40 ligand-binding site on CD40 and is optimized for selective interaction with Fcγ receptors to enhance agonistic potency while limiting less desirable Fc-effector functions like antibody-dependent cellular cytotoxicity of CD40-expressing immune cells. APX005M is a highly potent inducer of innate and adaptive immune effector responses and represents a promising CD40 agonist antibody for induction of an effective anti-tumor immune response with a favorable safety profile.
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Affiliation(s)
- Erin L Filbert
- Apexigen, Inc, 75 Shoreway Road, Suite C, San Carlos, CA, 94070, USA
| | - Pia K Björck
- Apexigen, Inc, 75 Shoreway Road, Suite C, San Carlos, CA, 94070, USA
| | - Minu K Srivastava
- Apexigen, Inc, 75 Shoreway Road, Suite C, San Carlos, CA, 94070, USA
| | - Frances R Bahjat
- Apexigen, Inc, 75 Shoreway Road, Suite C, San Carlos, CA, 94070, USA
| | - Xiaodong Yang
- Apexigen, Inc, 75 Shoreway Road, Suite C, San Carlos, CA, 94070, USA.
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11
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Sulistyo H, Budipramana VS. Examination of Micro Vascular Density on Metastatic Colorectal Cancer of RAS Mutant-Type as Anti Vegf Therapy Predictor. FOLIA MEDICA INDONESIANA 2021. [DOI: 10.20473/fmi.v57i2.18249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
According to the NCCN Clinical Practice Guidelines in Oncology (NCCN Guidelines) on Colon Cancer Version 2.2019, mCRC patients with mutant type RAS were treated with anti-VEGF. However, the use of the targeting therapy still had inconsistent results. Neoangiogenesis studies had been used as a basis to assess the prognosis of mCRC. Microvascular density (MVD) had become the morphological gold standard to assess neovascularization in human tumors. This study proved the existence of low microvascular density (MVD) in mCRC patients with mutant type RAS status as a predictor of failure of anti-VEGF therapy. There were 29 patients at Dr. Soetomo Academic Hospital from 2015-2018 who had their RAS status checked and tested for microvascular density (MVD). The results of this study were analyzed using SPSS 23.0. In the Mutant-type of RAS group, this study examined microvascular density (MVD). 11 (73%) research subjects with high MVD scores and 4 (27%) research subjects had low MVD scores. Besides, 27% microvascular density (MVD) was low, in the mutant-type of RAS mCRC patient which could be a predictor factor for the failure of anti-VEGF therapy.
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12
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Parray HA, Shukla S, Samal S, Shrivastava T, Ahmed S, Sharma C, Kumar R. Hybridoma technology a versatile method for isolation of monoclonal antibodies, its applicability across species, limitations, advancement and future perspectives. Int Immunopharmacol 2020; 85:106639. [PMID: 32473573 PMCID: PMC7255167 DOI: 10.1016/j.intimp.2020.106639] [Citation(s) in RCA: 95] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2020] [Revised: 05/06/2020] [Accepted: 05/22/2020] [Indexed: 02/06/2023]
Abstract
The advancements in technology and manufacturing processes have allowed the development of new derivatives, biosimilar or advanced improved versions for approved antibodies each year for treatment regimen. There are more than 700 antibody-based molecules that are in different stages of phase I/II/ III clinical trials targeting new unique targets. To date, approximately more than 80 monoclonal antibodies (mAbs) have been approved. A total of 7 novel antibody therapeutics had been granted the first approval either in the United States or European Union in the year 2019, representing approximately 20% of the total number of approved drugs. Most of these licenced mAbs or their derivatives are either of hybridoma origin or their improvised engineered versions. Even with the recent development of high throughput mAb generation technologies, hybridoma is the most favoured method due to its indigenous nature to preserve natural cognate antibody pairing information and preserves innate functions of immune cells. The recent advent of antibody engineering technology has superseded the species level barriers and has shown success in isolation of hybridoma across phylogenetically distinct species. This has led to the isolation of monoclonal antibodies against human targets that are conserved and non-immunogenic in the rodent. In this review, we have discussed in detail about hybridoma technology, its expansion towards different animal species, the importance of antibodies isolated from different animal sources that are useful in biological applications, advantages, and limitations. This review also summarizes the challenges and recent progress associated with hybridoma development, and how it has been overcome in these years to provide new insights for the isolation of mAbs.
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Affiliation(s)
- Hilal Ahmed Parray
- Translational Health Science & Technology Institute, NCR Biotech Science Cluster, Faridabad, Haryana 121001, India
| | - Shivangi Shukla
- Translational Health Science & Technology Institute, NCR Biotech Science Cluster, Faridabad, Haryana 121001, India
| | - Sweety Samal
- Translational Health Science & Technology Institute, NCR Biotech Science Cluster, Faridabad, Haryana 121001, India
| | - Tripti Shrivastava
- Translational Health Science & Technology Institute, NCR Biotech Science Cluster, Faridabad, Haryana 121001, India
| | - Shubbir Ahmed
- Translational Health Science & Technology Institute, NCR Biotech Science Cluster, Faridabad, Haryana 121001, India
| | - Chandresh Sharma
- Translational Health Science & Technology Institute, NCR Biotech Science Cluster, Faridabad, Haryana 121001, India.
| | - Rajesh Kumar
- Translational Health Science & Technology Institute, NCR Biotech Science Cluster, Faridabad, Haryana 121001, India.
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13
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Rozga P, Kloska D, Pawlak S, Teska-Kaminska M, Galazka M, Bukato K, Pieczykolan A, Jaworski A, Molga-Kaczmarska A, Kopacz A, Badyra B, Kachamakova-Trojanowska N, Zolnierkiewicz O, Targosz-Korecka M, Poleszak K, Szymanik M, Zerek B, Pieczykolan J, Jozkowicz A, Grochot-Przeczek A. Novel engineered TRAIL-based chimeric protein strongly inhibits tumor growth and bypasses TRAIL resistance. Int J Cancer 2020; 147:1117-1130. [PMID: 31863596 DOI: 10.1002/ijc.32845] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 09/23/2019] [Accepted: 09/26/2019] [Indexed: 01/07/2023]
Abstract
Targeting of the TRAIL-DR4/5 pathway was proposed as a promising approach for specific induction of apoptosis in cancer cells. Clinical trials, however, showed inadequate efficiency of TRAIL as a monotherapy. It is a widely held view that the application of multifunctional molecules or combination therapy may lead to substantial improvement. Here, we demonstrate the effectiveness and safety of a novel chimeric protein, AD-O51.4, which is a TRAIL equipped with positively charged VEGFA-derived effector peptides. The study was performed in multiple cancer cell line- and patient-derived xenografts. A pharmacokinetic profile was established in monkeys. AD-O51.4 strongly inhibits tumor growth, even leading to complete long-term tumor remission. Neither mice nor monkeys treated with AD-O51.4 demonstrate symptoms of drug toxicity. AD-O51.4 exhibits a satisfactory half-life in plasma and accumulates preferentially in tumors. The cellular mechanism of AD-O51.4 activity involves both cytotoxic effects in tumor cells and antiangiogenic effects on the endothelium. The presence of DRs in cancer cells is crucial for AD-O51.4-driven apoptosis execution. The TRAIL component of the fusion molecule serves as an apoptosis inducer and a cellular anchor for the effector peptides in TRAIL-sensitive and TRAIL-resistant cancer cells, respectively. The FADD-dependent pathway, however, seems to be not indispensable in death signal transduction; thus, AD-O51.4 is capable of bypassing the refractoriness of TRAIL. AD-O51.4-driven cell death, which exceeds TRAIL activity, is achieved due to the N-terminally fused polypeptide, containing VEGFA-derived effector peptides. The high anticancer efficiency of AD-O51.4 combined with its safety has led to the entry of AD-O51.4 into toxicological studies.
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Affiliation(s)
- Piotr Rozga
- Department of Drug Discovery, Adamed Pharma S.A. Pienkow, Czosnow, Poland
| | - Damian Kloska
- Department of Medical Biotechnology, Faculty of Biochemistry Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
| | - Sebastian Pawlak
- Department of Drug Discovery, Adamed Pharma S.A. Pienkow, Czosnow, Poland
| | | | - Marlena Galazka
- Department of Drug Discovery, Adamed Pharma S.A. Pienkow, Czosnow, Poland
| | - Katarzyna Bukato
- Department of Drug Discovery, Adamed Pharma S.A. Pienkow, Czosnow, Poland
| | - Anna Pieczykolan
- Department of Drug Discovery, Adamed Pharma S.A. Pienkow, Czosnow, Poland
| | - Albert Jaworski
- Department of Drug Discovery, Adamed Pharma S.A. Pienkow, Czosnow, Poland
| | | | - Aleksandra Kopacz
- Department of Medical Biotechnology, Faculty of Biochemistry Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
| | - Bogna Badyra
- Department of Medical Biotechnology, Faculty of Biochemistry Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
| | - Neli Kachamakova-Trojanowska
- Department of Medical Biotechnology, Faculty of Biochemistry Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
| | - Olga Zolnierkiewicz
- Department of Medical Biotechnology, Faculty of Biochemistry Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
| | - Marta Targosz-Korecka
- Department of Physics of Nanostructures and Nanotechnology, Institute of Physics, Jagiellonian University, Krakow, Poland
| | - Katarzyna Poleszak
- Department of Drug Discovery, Adamed Pharma S.A. Pienkow, Czosnow, Poland
| | - Michal Szymanik
- Department of Drug Discovery, Adamed Pharma S.A. Pienkow, Czosnow, Poland
| | - Bartlomiej Zerek
- Department of Drug Discovery, Adamed Pharma S.A. Pienkow, Czosnow, Poland
| | - Jerzy Pieczykolan
- Department of Drug Discovery, Adamed Pharma S.A. Pienkow, Czosnow, Poland
| | - Alicja Jozkowicz
- Department of Medical Biotechnology, Faculty of Biochemistry Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
| | - Anna Grochot-Przeczek
- Department of Medical Biotechnology, Faculty of Biochemistry Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
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14
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Gui X, Deng M, Song H, Chen Y, Xie J, Li Z, He L, Huang F, Xu Y, Anami Y, Yu H, Yu C, Li L, Yuan Z, Xu X, Wang Q, Chai Y, Huang T, Shi Y, Tsuchikama K, Liao XC, Xia N, Gao GF, Zhang N, Zhang CC, An Z. Disrupting LILRB4/APOE Interaction by an Efficacious Humanized Antibody Reverses T-cell Suppression and Blocks AML Development. Cancer Immunol Res 2019; 7:1244-1257. [PMID: 31213474 DOI: 10.1158/2326-6066.cir-19-0036] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 03/29/2019] [Accepted: 06/12/2019] [Indexed: 11/16/2022]
Abstract
Therapeutic strategies are urgently needed for patients with acute myeloid leukemia (AML). Leukocyte immunoglobulin-like receptor B4 (LILRB4), which suppresses T-cell activation and supports tissue infiltration of AML cells, represents an attractive drug target for anti-AML therapeutics. Here, we report the identification and development of an LILRB4-specific humanized mAb that blocks LILRB4 activation. This mAb, h128-3, showed potent activity in blocking the development of monocytic AML in various models including patient-derived xenograft mice and syngeneic immunocompetent AML mice. MAb h128-3 enhanced the anti-AML efficacy of chemotherapy treatment by stimulating mobilization of leukemia cells. Mechanistic studies revealed four concordant modes of action for the anti-AML activity of h128-3: (i) reversal of T-cell suppression, (ii) inhibition of monocytic AML cell tissue infiltration, (iii) antibody-dependent cellular cytotoxicity, and (iv) antibody-dependent cellular phagocytosis. Therefore, targeting LILRB4 with antibody represents an effective therapeutic strategy for treating monocytic AML.
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Affiliation(s)
- Xun Gui
- Texas Therapeutics Institute, Brown Foundation Institute of Molecular Medicine, University of Texas Health Science Center, Houston, Texas
| | - Mi Deng
- Department of Physiology, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Hao Song
- Research Network of Immunity and Health (RNIH), Beijing Institutes of Life Science, Chinese Academy of Sciences, Beijing, China
| | - Yuanzhi Chen
- Texas Therapeutics Institute, Brown Foundation Institute of Molecular Medicine, University of Texas Health Science Center, Houston, Texas.,School of Public Health, Xiamen University, Xiamen, Fujian, China
| | - Jingjing Xie
- Department of Physiology, University of Texas Southwestern Medical Center, Dallas, Texas.,Taishan Immunology Program, Basic Medicine School, Binzhou Medical University, Yantai, China
| | - Zunling Li
- Department of Physiology, University of Texas Southwestern Medical Center, Dallas, Texas.,Taishan Immunology Program, Basic Medicine School, Binzhou Medical University, Yantai, China
| | - Licai He
- Department of Physiology, University of Texas Southwestern Medical Center, Dallas, Texas.,Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medical and Life Science, Wenzhou Medical University, Wenzhou, China
| | - Fangfang Huang
- Department of Physiology, University of Texas Southwestern Medical Center, Dallas, Texas.,Department of Hematology, Zhongshan Hospital, Xiamen University, Xiamen, China
| | - Yixiang Xu
- Texas Therapeutics Institute, Brown Foundation Institute of Molecular Medicine, University of Texas Health Science Center, Houston, Texas
| | - Yasuaki Anami
- Texas Therapeutics Institute, Brown Foundation Institute of Molecular Medicine, University of Texas Health Science Center, Houston, Texas
| | - Hai Yu
- School of Public Health, Xiamen University, Xiamen, Fujian, China
| | - Chenyi Yu
- Texas Therapeutics Institute, Brown Foundation Institute of Molecular Medicine, University of Texas Health Science Center, Houston, Texas.,School of Xiangya Medicine, Central South University, Changsha, Hunan, China
| | - Leike Li
- Texas Therapeutics Institute, Brown Foundation Institute of Molecular Medicine, University of Texas Health Science Center, Houston, Texas
| | - Zihao Yuan
- Texas Therapeutics Institute, Brown Foundation Institute of Molecular Medicine, University of Texas Health Science Center, Houston, Texas
| | - Xiaoying Xu
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
| | - Qihui Wang
- Texas Therapeutics Institute, Brown Foundation Institute of Molecular Medicine, University of Texas Health Science Center, Houston, Texas.,CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
| | - Yan Chai
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
| | - Tao Huang
- Immune-Onc Therapeutics, Inc., Palo Alto, California
| | - Yi Shi
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
| | - Kyoji Tsuchikama
- Texas Therapeutics Institute, Brown Foundation Institute of Molecular Medicine, University of Texas Health Science Center, Houston, Texas
| | | | - Ningshao Xia
- School of Public Health, Xiamen University, Xiamen, Fujian, China
| | - George F Gao
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China.,National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention (China CDC), Beijing, China
| | - Ningyan Zhang
- Texas Therapeutics Institute, Brown Foundation Institute of Molecular Medicine, University of Texas Health Science Center, Houston, Texas.
| | - Cheng Cheng Zhang
- Department of Physiology, University of Texas Southwestern Medical Center, Dallas, Texas.
| | - Zhiqiang An
- Texas Therapeutics Institute, Brown Foundation Institute of Molecular Medicine, University of Texas Health Science Center, Houston, Texas.
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15
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Seebacher NA, Stacy AE, Porter GM, Merlot AM. Clinical development of targeted and immune based anti-cancer therapies. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2019; 38:156. [PMID: 30975211 PMCID: PMC6460662 DOI: 10.1186/s13046-019-1094-2] [Citation(s) in RCA: 142] [Impact Index Per Article: 28.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2018] [Accepted: 02/07/2019] [Indexed: 02/08/2023]
Abstract
Cancer is currently the second leading cause of death globally and is expected to be responsible for approximately 9.6 million deaths in 2018. With an unprecedented understanding of the molecular pathways that drive the development and progression of human cancers, novel targeted therapies have become an exciting new development for anti-cancer medicine. These targeted therapies, also known as biologic therapies, have become a major modality of medical treatment, by acting to block the growth of cancer cells by specifically targeting molecules required for cell growth and tumorigenesis. Due to their specificity, these new therapies are expected to have better efficacy and limited adverse side effects when compared with other treatment options, including hormonal and cytotoxic therapies. In this review, we explore the clinical development, successes and challenges facing targeted anti-cancer therapies, including both small molecule inhibitors and antibody targeted therapies. Herein, we introduce targeted therapies to epidermal growth factor receptor (EGFR), vascular endothelial growth factor (VEGF), human epidermal growth factor receptor 2 (HER2), anaplastic lymphoma kinase (ALK), BRAF, and the inhibitors of the T-cell mediated immune response, cytotoxic T-lymphocyte-associated protein 4 (CTLA-4) and programmed cell death protein-1 (PD-1)/ PD-1 ligand (PD-1 L).
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Affiliation(s)
- N A Seebacher
- Faculty of Medicine, The University of Sydney, Camperdown, New South Wales, 2006, Australia
| | - A E Stacy
- Faculty of Medicine, The University of Notre Dame, Darlinghurst, New South Wales, 2010, Australia
| | - G M Porter
- Children's Cancer Institute, Lowy Cancer Research Centre, University of New South Wales, Kensington, New South Wales, 2031, Australia
| | - A M Merlot
- Children's Cancer Institute, Lowy Cancer Research Centre, University of New South Wales, Kensington, New South Wales, 2031, Australia. .,School of Women's and Children's Health, Faculty of Medicine, University of New South Wales, Kensington, New South Wales, 2031, Australia. .,UNSW Centre for Childhood Cancer Research, Faculty of Medicine, University of New South Wales, Kensington, New South Wales, 2031, Australia.
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16
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Bu D, Crewe C, Kusminski CM, Gordillo R, Ghaben AL, Kim M, Park J, Deng H, Xiong W, Liu XZ, Lønning PE, Halberg N, Rios A, Chang Y, Gonzalez A, Zhang N, An Z, Scherer PE. Human endotrophin as a driver of malignant tumor growth. JCI Insight 2019; 5:125094. [PMID: 30896449 DOI: 10.1172/jci.insight.125094] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
We have previously reported that the carboxy-terminal proteolytic cleavage product of the COL6α3 chain that we refer to as "endotrophin" has potent effects on transformed mammary ductal epithelial cells in rodents. Endotrophin (ETP) is abundantly expressed in adipose tissue. It is a chemoattractant for macrophages, exerts effects on endothelial cells and through epithelial-mesenchymal transition (EMT) enhances progression of tumor cells. In a recombinant form, human endotrophin exerts similar effects on human macrophages and endothelial cells as its rodent counterpart. It enhances EMT in human breast cancer cells and upon overexpression in tumor cells, the cells become chemoresistant. Here, we report the identification of endotrophin from human plasma. It is circulating at higher levels in breast cancer patients. We have developed neutralizing monoclonal antibodies against human endotrophin and provide evidence for the effectiveness of these antibodies to curb tumor growth and enhance chemosensitivity in a nude mouse model carrying human tumor cell lesions. Combined, the data validate endotrophin as a viable target for anti-tumor therapy for human breast cancer and opens the possibility for further use of these new reagents for anti-fibrotic approaches in liver, kidney, bone marrow and adipose tissue.
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Affiliation(s)
- Dawei Bu
- Touchstone Diabetes Center, Departments of Internal Medicine and Simmons Cancer Center, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Clair Crewe
- Touchstone Diabetes Center, Departments of Internal Medicine and Simmons Cancer Center, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Christine M Kusminski
- Touchstone Diabetes Center, Departments of Internal Medicine and Simmons Cancer Center, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Ruth Gordillo
- Touchstone Diabetes Center, Departments of Internal Medicine and Simmons Cancer Center, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Alexandra L Ghaben
- Touchstone Diabetes Center, Departments of Internal Medicine and Simmons Cancer Center, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Min Kim
- Department of Biological Sciences, School of Life Sciences, Ulsan National Institute of Science and Technology, Ulsan, South Korea
| | - Jiyoung Park
- Department of Biological Sciences, School of Life Sciences, Ulsan National Institute of Science and Technology, Ulsan, South Korea
| | - Hui Deng
- Texas Therapeutics Institute, Brown Foundation Institute of Molecular Medicine, University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Wei Xiong
- Texas Therapeutics Institute, Brown Foundation Institute of Molecular Medicine, University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Xiao-Zheng Liu
- Department of Biomedicine, University of Bergen, Bergen, Norway
| | - Per Eystein Lønning
- Department of Clinical Science, Faculty of Medicine, University of Bergen, and Department of Oncology, Haukeland University Hospital, Bergen, Norway
| | - Nils Halberg
- Department of Biomedicine, University of Bergen, Bergen, Norway
| | - Adan Rios
- Texas Therapeutics Institute, Brown Foundation Institute of Molecular Medicine, University of Texas Health Science Center at Houston, Houston, Texas, USA.,Division of Oncology, Department of Internal Medicine, University of Texas Health Science Center at Houston, Houston, Texas, USA
| | | | - Anneliese Gonzalez
- Division of Oncology, Department of Internal Medicine, University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Ningyan Zhang
- Texas Therapeutics Institute, Brown Foundation Institute of Molecular Medicine, University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Zhiqiang An
- Texas Therapeutics Institute, Brown Foundation Institute of Molecular Medicine, University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Philipp E Scherer
- Touchstone Diabetes Center, Departments of Internal Medicine and Simmons Cancer Center, University of Texas Southwestern Medical Center, Dallas, Texas, USA
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17
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Fan C, Wu X, Liu Q, Li Q, Liu S, Lu J, Yang Y, Cao Y, Huang W, Liang C, Ying T, Jiang S, Wang Y. A Human DPP4-Knockin Mouse's Susceptibility to Infection by Authentic and Pseudotyped MERS-CoV. Viruses 2018; 10:v10090448. [PMID: 30142928 PMCID: PMC6164841 DOI: 10.3390/v10090448] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2018] [Revised: 08/13/2018] [Accepted: 08/17/2018] [Indexed: 01/01/2023] Open
Abstract
Infection by the Middle East respiratory syndrome coronavirus (MERS-CoV) causes respiratory illness and has a high mortality rate (~35%). The requirement for the virus to be manipulated in a biosafety level three (BSL-3) facility has impeded development of urgently-needed antiviral agents. Here, we established anovel mouse model by inserting human dipeptidyl peptidase 4 (hDPP4) into the Rosa26 locus using CRISPR/Cas9, resulting in global expression of the transgene in a genetically stable mouse line. The mice were highly susceptible to infection by MERS-CoV clinical strain hCoV-EMC, which induced severe diffuse pulmonary disease in the animals, and could also be infected by an optimized pseudotyped MERS-CoV. Administration of the neutralizing monoclonal antibodies, H111-1 and m336, as well as a fusion inhibitor peptide, HR2P-M2, protected mice from challenge with authentic and pseudotyped MERS-CoV. These results confirmed that the hDPP4-knockin mouse is a novel model for studies of MERS-CoV pathogenesis and anti-MERS-CoV antiviral agents in BSL-3 and BSL-2facilities, respectively.
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Affiliation(s)
- Changfa Fan
- Division of Animal Model Research, Institute for Laboratory Animal Resources, National Institutes for Food and Drug Control, Beijing 100050, China.
| | - Xi Wu
- Division of Animal Model Research, Institute for Laboratory Animal Resources, National Institutes for Food and Drug Control, Beijing 100050, China.
| | - Qiang Liu
- Division of HIV/AIDS and Sex-Transmitted Virus Vaccines, National Institutes for Food and Drug Control, Beijing 100050, China.
| | - Qianqian Li
- Division of HIV/AIDS and Sex-Transmitted Virus Vaccines, National Institutes for Food and Drug Control, Beijing 100050, China.
| | - Susu Liu
- Division of Animal Model Research, Institute for Laboratory Animal Resources, National Institutes for Food and Drug Control, Beijing 100050, China.
| | - Jianjun Lu
- National Center for Safety Evaluation of Drugs, Institute for Food and Drug Safety Evaluation, National Institutes for Food and Drug Control, A8 Hongda Middle Street, Beijing Economic-Technological Development Area, Beijing 100176, China.
| | - Yanwei Yang
- National Center for Safety Evaluation of Drugs, Institute for Food and Drug Safety Evaluation, National Institutes for Food and Drug Control, A8 Hongda Middle Street, Beijing Economic-Technological Development Area, Beijing 100176, China.
| | - Yuan Cao
- Division of Animal Model Research, Institute for Laboratory Animal Resources, National Institutes for Food and Drug Control, Beijing 100050, China.
| | - Weijin Huang
- Division of HIV/AIDS and Sex-Transmitted Virus Vaccines, National Institutes for Food and Drug Control, Beijing 100050, China.
| | - Chunnan Liang
- Division of Animal Model Research, Institute for Laboratory Animal Resources, National Institutes for Food and Drug Control, Beijing 100050, China.
| | - Tianlei Ying
- Key Laboratory of Medical Molecular Virology of the Ministries of Education and Health, Shanghai Medical College, Fudan University, Shanghai 200032, China.
| | - Shibo Jiang
- Key Laboratory of Medical Molecular Virology of the Ministries of Education and Health, Shanghai Medical College, Fudan University, Shanghai 200032, China.
| | - Youchun Wang
- Division of HIV/AIDS and Sex-Transmitted Virus Vaccines, National Institutes for Food and Drug Control, Beijing 100050, China.
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18
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Off-tumor targets compromise antiangiogenic drug sensitivity by inducing kidney erythropoietin production. Proc Natl Acad Sci U S A 2017; 114:E9635-E9644. [PMID: 29078273 DOI: 10.1073/pnas.1703431114] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Anti-VEGF drugs are commonly used for treatment of a variety of cancers in human patients, and they often develop resistance. The mechanisms underlying anti-VEGF resistance in human cancer patients are largely unknown. Here, we show that in mouse tumor models and in human cancer patients, the anti-VEGF drug-induced kidney hypoxia augments circulating levels of erythropoietin (EPO). Gain-of-function studies show that EPO protects tumor vessels from anti-VEGF treatment and compromises its antitumor effects. Loss of function by blocking EPO function using a pharmacological approach markedly increases antitumor activity of anti-VEGF drugs through inhibition of tumor angiogenesis. Similarly, genetic loss-of-function data shows that deletion of EpoR in nonerythroid cells significantly increases antiangiogenic and antitumor effects of anti-VEGF therapy. Finally, in a relatively large cohort study, we show that treatment of human colorectal cancer patients with bevacizumab augments circulating EPO levels. These findings uncover a mechanism of desensitizing antiangiogenic and anticancer effects by kidney-produced EPO. Our work presents conceptual advances of our understanding of mechanisms underlying antiangiogenic drug resistance.
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19
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Spidel JL, Albone EF, Cheng X, Vaessen B, Jacob S, Milinichik AZ, Verdi A, Kline JB, Grasso L. Engineering humanized antibody framework sequences for optimal site-specific conjugation of cytotoxins. MAbs 2017; 9:907-915. [PMID: 28541812 DOI: 10.1080/19420862.2017.1330734] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
The prevailing techniques used to generate antibody-drug conjugates (ADCs) involve random conjugation of the linker-drug to multiple lysines or cysteines in the antibody. Engineering natural and non-natural amino acids into an antibody has been demonstrated to be an effective strategy to produce homogeneous ADC products with defined drug-to-antibody ratios. We recently reported an efficient residue-specific conjugation technology (RESPECT) where thiol-reactive payloads can be efficiently conjugated to a native unpaired cysteine in position 80 (C80) of rabbit light chains. Deimmunizing the rabbit variable domains through humanization is necessary to reduce the risk of anti-drug antibody responses in patients. However, we found that first-generation humanized RESPECT ADCs showed high levels of aggregation and low conjugation efficiency. We correlated these negative properties to the phenylalanine at position 83 present in most human variable kappa frameworks. When position 83 was substituted with selected amino acids, conjugation was restored and aggregation was reduced to levels similar to the chimeric ADC. This engineering strategy allows for development of second-generation humanized RESPECT ADCs with desirable biopharmaceutical properties.
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20
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Weber J, Peng H, Rader C. From rabbit antibody repertoires to rabbit monoclonal antibodies. Exp Mol Med 2017; 49:e305. [PMID: 28336958 PMCID: PMC5382564 DOI: 10.1038/emm.2017.23] [Citation(s) in RCA: 96] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Accepted: 12/22/2016] [Indexed: 12/11/2022] Open
Abstract
In this review, we explain why and how rabbit monoclonal antibodies have become outstanding reagents for laboratory research and increasingly for diagnostic and therapeutic applications. Starting with the unique ontogeny of rabbit B cells that affords highly distinctive antibody repertoires rich in in vivo pruned binders of high diversity, affinity and specificity, we describe the generation of rabbit monoclonal antibodies by hybridoma technology, phage display and alternative methods, along with an account of successful humanization strategies.
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Affiliation(s)
- Justus Weber
- Department of Immunology and Microbiology, The Scripps Research Institute, Jupiter, FL, USA
| | - Haiyong Peng
- Department of Immunology and Microbiology, The Scripps Research Institute, Jupiter, FL, USA
| | - Christoph Rader
- Department of Immunology and Microbiology, The Scripps Research Institute, Jupiter, FL, USA
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21
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Zhang YF, Ho M. Humanization of rabbit monoclonal antibodies via grafting combined Kabat/IMGT/Paratome complementarity-determining regions: Rationale and examples. MAbs 2017; 9:419-429. [PMID: 28165915 DOI: 10.1080/19420862.2017.1289302] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Rabbit monoclonal antibodies (RabMAbs) can recognize diverse epitopes, including those poorly immunogenic in mice and humans. However, there have been only a few reports on RabMAb humanization, an important antibody engineering step usually done before clinical applications are investigated. To pursue a general method for humanization of RabMAbs, we analyzed the complex structures of 5 RabMAbs with their antigens currently available in the Protein Data Bank, and identified antigen-contacting residues on the rabbit Fv within the 6 Angstrom distance to its antigen. We also analyzed the supporting residues for antigen-contacting residues on the same heavy or light chain. We identified "HV4" and "LV4" in rabbit Fvs, non-complementarity-determining region (CDR) loops that are structurally close to the antigen and located in framework 3 of the heavy chain and light chain, respectively. Based on our structural and sequence analysis, we designed a humanization strategy by grafting the combined Kabat/IMGT/Paratome CDRs, which cover most antigen-contacting residues, into a human germline framework sequence. Using this strategy, we humanized 4 RabMAbs that recognize poorly immunogenic epitopes in the cancer target mesothelin. Three of the 4 humanized rabbit Fvs have similar or improved functional binding affinity for mesothelin-expressing cells. Interestingly, 4 immunotoxins composed of the humanized scFvs fused to a clinically used fragment of Pseudomonas exotoxin (PE38) showed stronger cytotoxicity against tumor cells than the immunotoxins derived from their original rabbit scFvs. Our data suggest that grafting the combined Kabat/IMGT/Paratome CDRs to a stable human germline framework can be a general approach to humanize RabMAbs.
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Affiliation(s)
- Yi-Fan Zhang
- a Laboratory of Molecular Biology , National Cancer Institute , Bethesda , MD , USA
| | - Mitchell Ho
- a Laboratory of Molecular Biology , National Cancer Institute , Bethesda , MD , USA
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22
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Courtois F, Agrawal NJ, Lauer TM, Trout BL. Rational design of therapeutic mAbs against aggregation through protein engineering and incorporation of glycosylation motifs applied to bevacizumab. MAbs 2016; 8:99-112. [PMID: 26514585 DOI: 10.1080/19420862.2015.1112477] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
Abstract
The aggregation of biotherapeutics is a major hindrance to the development of successful drug candidates; however, the propensity to aggregate is often identified too late in the development phase to permit modification to the protein's sequence. Incorporating rational design for the stability of proteins in early discovery has numerous benefits. We engineered out aggregation-prone regions on the Fab domain of a therapeutic monoclonal antibody, bevacizumab, to rationally design a biobetter drug candidate. With the purpose of stabilizing bevacizumab with respect to aggregation, 2 strategies were undertaken: single point mutations of aggregation-prone residues and engineering a glycosylation site near aggregation-prone residues to mask these residues with a carbohydrate moiety. Both of these approaches lead to comparable decreases in aggregation, with an up to 4-fold reduction in monomer loss. These single mutations and the new glycosylation pattern of the Fab domain do not modify binding to the target. Biobetters with increased stability against aggregation can therefore be generated in a rational manner, by either removing or masking the aggregation-prone region or crowding out protein-protein interactions.
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Affiliation(s)
- Fabienne Courtois
- a Chemical Engineering ; Massachusetts Institute of Technology ; Cambridge , Massachusetts 02139
| | - Neeraj J Agrawal
- a Chemical Engineering ; Massachusetts Institute of Technology ; Cambridge , Massachusetts 02139
| | - Timothy M Lauer
- a Chemical Engineering ; Massachusetts Institute of Technology ; Cambridge , Massachusetts 02139
| | - Bernhardt L Trout
- a Chemical Engineering ; Massachusetts Institute of Technology ; Cambridge , Massachusetts 02139
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23
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Discontinuation of anti-VEGF cancer therapy promotes metastasis through a liver revascularization mechanism. Nat Commun 2016; 7:12680. [PMID: 27580750 PMCID: PMC5025794 DOI: 10.1038/ncomms12680] [Citation(s) in RCA: 81] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2016] [Accepted: 07/21/2016] [Indexed: 12/21/2022] Open
Abstract
The impact of discontinuation of anti-VEGF cancer therapy in promoting cancer metastasis is unknown. Here we show discontinuation of anti-VEGF treatment creates a time-window of profound structural changes of liver sinusoidal vasculatures, exhibiting hyper-permeability and enlarged open-pore sizes of the fenestrated endothelium and loss of VE-cadherin. The drug cessation caused highly leaky hepatic vasculatures permit tumour cell intravasation and extravasation. Discontinuation of an anti-VEGF antibody-based drug and sunitinib markedly promotes liver metastasis. Mechanistically, host hepatocyte, but not tumour cell-derived vascular endothelial growth factor (VEGF), is responsible for cancer metastasis. Deletion of hepatocyte VEGF markedly ablates the ‘off-drug'-induced metastasis. These findings provide mechanistic insights on anti-VEGF cessation-induced metastasis and raise a new challenge for uninterrupted and sustained antiangiogenic therapy for treatment of human cancers. Anti-VEGF therapy often produces limited beneficial effects in cancer patients. Here, the authors show that discontinuation of anti-VEGF cancer therapy in xenografts-bearing mice increases cancer cells extravasation and intravasation in liver through the host-derived VEGF.
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24
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Wentink MQ, Broxterman HJ, Lam SW, Boven E, Walraven M, Griffioen AW, Pili R, van der Vliet HJ, de Gruijl TD, Verheul HMW. A functional bioassay to determine the activity of anti-VEGF antibody therapy in blood of patients with cancer. Br J Cancer 2016; 115:940-948. [PMID: 27575850 PMCID: PMC5061906 DOI: 10.1038/bjc.2016.275] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Revised: 08/01/2016] [Accepted: 08/04/2016] [Indexed: 12/12/2022] Open
Abstract
Background: Only a small proportion of patients respond to anti-VEGF therapy, pressing the need for a reliable biomarker that can identify patients who will benefit. We studied the biological activity of anti-VEGF antibodies in patients' blood during anti-VEGF therapy by using the Ba/F3-VEGFR2 cell line, which is dependent on VEGF for its growth. Methods: Serum samples from 22 patients with cancer before and during treatment with bevacizumab were tested for their effect on proliferation of Ba/F3-VEGFR2 cells. Vascular endothelial growth factor as well as bevacizumab concentrations in serum samples from these patients were determined by enzyme linked immunosorbent assay (ELISA). Results: The hVEGF-driven cell proliferation was effectively blocked by bevacizumab (IC50 3.7 μg ml−1; 95% CI 1.7–8.3 μg ml−1). Cell proliferation was significantly reduced when patients' serum during treatment with bevacizumab was added (22–103% inhibition compared with pre-treatment). Although bevacizumab levels were not related, on-treatment serum VEGF levels were correlated with Ba/F3-VEGFR2 cell proliferation. Conclusions: We found that the neutralising effect of anti-VEGF antibody therapy on the biological activity of circulating VEGF can be accurately determined with a Ba/F3-VEGFR2 bioassay. The value of this bioassay to predict clinical benefit of anti-VEGF antibody therapy needs further clinical evaluation in a larger randomised cohort.
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Affiliation(s)
- Madelon Q Wentink
- Department of Medical Oncology, VU University Medical Center, Amsterdam, The Netherlands
| | - Henk J Broxterman
- Department of Medical Oncology, VU University Medical Center, Amsterdam, The Netherlands
| | - Siu W Lam
- Department of Medical Oncology, VU University Medical Center, Amsterdam, The Netherlands
| | - Epie Boven
- Department of Medical Oncology, VU University Medical Center, Amsterdam, The Netherlands
| | - Maudy Walraven
- Department of Medical Oncology, University Medical Center, Utrecht, The Netherlands
| | - Arjan W Griffioen
- Department of Medical Oncology, VU University Medical Center, Amsterdam, The Netherlands
| | - Roberto Pili
- Department of Hematology/Oncology, Indiana University, Indianapolis, Indiana
| | - Hans J van der Vliet
- Department of Medical Oncology, VU University Medical Center, Amsterdam, The Netherlands
| | - Tanja D de Gruijl
- Department of Medical Oncology, VU University Medical Center, Amsterdam, The Netherlands
| | - Henk M W Verheul
- Department of Medical Oncology, VU University Medical Center, Amsterdam, The Netherlands
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25
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Ibata S, Sato T, Takada K, Tatekoshi A, Hashimoto A, Kamihara Y, Jomen W, Horiguchi H, Ono K, Murase K, Iyama S, Miyanishi K, Sato Y, Takimoto R, Kobune M, Kato J. Isoform D of vascular endothelial growth factor in systemic capillary leak syndrome: a case report. J Med Case Rep 2016; 10:125. [PMID: 27386947 PMCID: PMC4937526 DOI: 10.1186/s13256-016-0894-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2015] [Accepted: 04/07/2016] [Indexed: 11/10/2022] Open
Abstract
Background Systemic capillary leak syndrome is a rare condition characterized by episodic attacks of hypovolemia due to systemic capillary hyperpermeability, which results in profound hypotension and edema. Although the implication of vascular endothelial growth factor, angiopoietin-2, and C-X-C motif chemokine 10 has been suggested, the pathogenesis of systemic capillary leak syndrome remains unclear. In this report, we describe a case of systemic capillary leak syndrome in which serum isoform D of vascular endothelial growth factor was elevated. To the best of our knowledge, this is the first reported case of systemic capillary leak syndrome in which isoform D of vascular endothelial growth factor is suggested as the plausible biomarker. Case presentation A 41-year-old Japanese man was transferred to our emergency department. He was hypotensive, tachycardic, and edematous over the trunk and all four limbs. He received aggressive intravenous fluid therapy and underwent fasciotomy of the right forearm to prevent muscle necrosis. A diagnosis of systemic capillary leak syndrome was suspected. The presence of serum monoclonal immunoglobulin G and κ light chain supported this diagnosis. Prevention of hypotensive crises was unsuccessfully attempted with theophylline, intravenous immunoglobulin, high-dose dexamethasone, bortezomib, melphalan, and prednisolone; however, the patient’s attacks dramatically disappeared after the introduction of thalidomide. The serum of the patient was stored soon after the onset of hypotensive crisis and analyzed to profile possible mediators responsible for the capillary leak. The concentration of vascular endothelial growth factor, angiopoietin-2, and C-X-C motif chemokine 10 were all within normal ranges. Meanwhile, we found that isoform D of vascular endothelial growth factor was elevated, which was normalized after the introduction of thalidomide. Conclusions In our patient, isoform D of vascular endothelial growth factor (instead of vascular endothelial growth factor) may have been a causative factor of hypotensive crises, since isoform D contributes to vascular endothelial growth factor receptor-2 signaling, which is the major mediator of the permeability-enhancing effects of vascular endothelial growth factor. We suggest the measurement of isoform D of vascular endothelial growth factor in patients with systemic capillary leak syndrome in whose serum vascular endothelial growth factor is not elevated.
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Affiliation(s)
- Soushi Ibata
- Department of Medical Oncology and Hematology, School of Medicine, Sapporo Medical University, South-1, West-16, Chuo-ku, Sapporo, Japan
| | - Tsutomu Sato
- Department of Medical Oncology and Hematology, School of Medicine, Sapporo Medical University, South-1, West-16, Chuo-ku, Sapporo, Japan
| | - Kohichi Takada
- Department of Medical Oncology and Hematology, School of Medicine, Sapporo Medical University, South-1, West-16, Chuo-ku, Sapporo, Japan
| | - Ayumi Tatekoshi
- Department of Medical Oncology and Hematology, School of Medicine, Sapporo Medical University, South-1, West-16, Chuo-ku, Sapporo, Japan
| | - Akari Hashimoto
- Department of Medical Oncology and Hematology, School of Medicine, Sapporo Medical University, South-1, West-16, Chuo-ku, Sapporo, Japan
| | - Yusuke Kamihara
- Department of Medical Oncology and Hematology, School of Medicine, Sapporo Medical University, South-1, West-16, Chuo-ku, Sapporo, Japan
| | - Wataru Jomen
- Department of Medical Oncology and Hematology, School of Medicine, Sapporo Medical University, South-1, West-16, Chuo-ku, Sapporo, Japan
| | - Hiroto Horiguchi
- Department of Medical Oncology and Hematology, School of Medicine, Sapporo Medical University, South-1, West-16, Chuo-ku, Sapporo, Japan
| | - Kaoru Ono
- Department of Medical Oncology and Hematology, School of Medicine, Sapporo Medical University, South-1, West-16, Chuo-ku, Sapporo, Japan
| | - Kazuyuki Murase
- Department of Medical Oncology and Hematology, School of Medicine, Sapporo Medical University, South-1, West-16, Chuo-ku, Sapporo, Japan
| | - Satoshi Iyama
- Department of Medical Oncology and Hematology, School of Medicine, Sapporo Medical University, South-1, West-16, Chuo-ku, Sapporo, Japan
| | - Koji Miyanishi
- Department of Medical Oncology and Hematology, School of Medicine, Sapporo Medical University, South-1, West-16, Chuo-ku, Sapporo, Japan
| | - Yasushi Sato
- Department of Medical Oncology and Hematology, School of Medicine, Sapporo Medical University, South-1, West-16, Chuo-ku, Sapporo, Japan
| | - Rishu Takimoto
- Department of Medical Oncology and Hematology, School of Medicine, Sapporo Medical University, South-1, West-16, Chuo-ku, Sapporo, Japan
| | - Masayoshi Kobune
- Department of Medical Oncology and Hematology, School of Medicine, Sapporo Medical University, South-1, West-16, Chuo-ku, Sapporo, Japan
| | - Junji Kato
- Department of Medical Oncology and Hematology, School of Medicine, Sapporo Medical University, South-1, West-16, Chuo-ku, Sapporo, Japan.
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26
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Endocrine vasculatures are preferable targets of an antitumor ineffective low dose of anti-VEGF therapy. Proc Natl Acad Sci U S A 2016; 113:4158-63. [PMID: 27035988 DOI: 10.1073/pnas.1601649113] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Anti-VEGF-based antiangiogenic drugs are designed to block tumor angiogenesis for treatment of cancer patients. However, anti-VEGF drugs produce off-tumor target effects on multiple tissues and organs and cause broad adverse effects. Here, we show that vasculatures in endocrine organs were more sensitive to anti-VEGF treatment than tumor vasculatures. In thyroid, adrenal glands, and pancreatic islets, systemic treatment with low doses of an anti-VEGF neutralizing antibody caused marked vascular regression, whereas tumor vessels remained unaffected. Additionally, a low dose of VEGF blockade significantly inhibited the formation of thyroid vascular fenestrae, leaving tumor vascular structures unchanged. Along with vascular structural changes, the low dose of VEGF blockade inhibited vascular perfusion and permeability in thyroid, but not in tumors. Prolonged treatment with the low-dose VEGF blockade caused hypertension and significantly decreased circulating levels of thyroid hormone free-T3 and -T4, leading to functional impairment of thyroid. These findings show that the fenestrated microvasculatures in endocrine organs are more sensitive than tumor vasculatures in response to systemic anti-VEGF drugs. Thus, our data support the notion that clinically nonbeneficial treatments with anti-VEGF drugs could potentially cause adverse effects.
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27
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Liu N, Zhao Z, Tan Y, Lu L, Wang L, Liao Y, Beloglazova N, De Saeger S, Zheng X, Wu A. Simultaneous Raising of Rabbit Monoclonal Antibodies to Fluoroquinolones with Diverse Recognition Functionalities via Single Mixture Immunization. Anal Chem 2015; 88:1246-52. [DOI: 10.1021/acs.analchem.5b03637] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Na Liu
- Key
Laboratory of Food Safety Research, Institute for Nutritional Sciences,
Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 294 Taiyuan Road, Shanghai 200031, P. R. China
- Key
Laboratory of Food Safety Risk Assessment, Ministry of Health, Beijing, 100021, China
- School
of Biosystems Engineering and Food Science, Zhejiang University, 388 Yuhangtang Road, Hangzhou 310058, P. R. China
| | - Zhiyong Zhao
- Key
Laboratory of Food Safety Research, Institute for Nutritional Sciences,
Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 294 Taiyuan Road, Shanghai 200031, P. R. China
- Key
Laboratory of Food Safety Risk Assessment, Ministry of Health, Beijing, 100021, China
| | - Yanglan Tan
- Key
Laboratory of Food Safety Research, Institute for Nutritional Sciences,
Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 294 Taiyuan Road, Shanghai 200031, P. R. China
- Key
Laboratory of Food Safety Risk Assessment, Ministry of Health, Beijing, 100021, China
| | - Lei Lu
- School
of Biosystems Engineering and Food Science, Zhejiang University, 388 Yuhangtang Road, Hangzhou 310058, P. R. China
| | - Lin Wang
- School
of Biosystems Engineering and Food Science, Zhejiang University, 388 Yuhangtang Road, Hangzhou 310058, P. R. China
| | - Yucai Liao
- College
of Plant Science and Technology, Huazhong Agricultural University, No. 1 Shizishan Street, Hongshan District, Wuhan, Hubei 430070, PR China
| | - Natalia Beloglazova
- Laboratory
of Food Analysis, Faculty of Pharmaceutical Sciences, Ghent University, Ottergemsesteenweg
460, 9000 Ghent, Belgium
| | - Sarah De Saeger
- Laboratory
of Food Analysis, Faculty of Pharmaceutical Sciences, Ghent University, Ottergemsesteenweg
460, 9000 Ghent, Belgium
| | - Xiaodong Zheng
- School
of Biosystems Engineering and Food Science, Zhejiang University, 388 Yuhangtang Road, Hangzhou 310058, P. R. China
| | - Aibo Wu
- Key
Laboratory of Food Safety Research, Institute for Nutritional Sciences,
Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 294 Taiyuan Road, Shanghai 200031, P. R. China
- Key
Laboratory of Food Safety Risk Assessment, Ministry of Health, Beijing, 100021, China
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28
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Yu Y, Chen Y, Ding G, Wang M, Wu H, Xu L, Rui X, Zhang Z. A novel rabbit anti-hepatocyte growth factor monoclonal neutralizing antibody inhibits tumor growth in prostate cancer cells and mouse xenografts. Biochem Biophys Res Commun 2015; 464:154-60. [PMID: 26093299 DOI: 10.1016/j.bbrc.2015.06.107] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2015] [Accepted: 06/15/2015] [Indexed: 01/14/2023]
Abstract
The hepatocyte growth factor and its receptor c-Met are correlated with castration-resistance in prostate cancer. Although HGF has been considered as an attractive target for therapeutic antibodies, the lack of cross-reactivity of monoclonal antibodies with human/mouse HGFs is a major obstacle in preclinical developments. We generated a panel of anti-HGF RabMAbs either blocking HGF/c-Met interaction or inhibiting c-Met phosphorylation. We selected one RabMAb with mouse cross-reactivity and demonstrated that it blocked HGF-stimulated downstream activation in PC-3 and DU145 cells. Anti-HGF RabMAb inhibited not only the growth of PC-3 cells but also HGF-dependent proliferation in HUVECs. We further demonstrated the efficacy and potency of the anti-HGF RabMAb in tumor xenograft mice models. Through these in vitro and in vivo experiments, we explored a novel therapeutic antibody for advanced prostate cancer.
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Affiliation(s)
- Yanlan Yu
- Department of Urology, Sir Run-Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Yicheng Chen
- Department of Urology, Sir Run-Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Guoqing Ding
- Department of Urology, Sir Run-Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Mingchao Wang
- Department of Urology, Sir Run-Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Haiyang Wu
- Department of Urology, Sir Run-Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Liwei Xu
- Department of Urology, Sir Run-Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Xuefang Rui
- Department of Urology, Sir Run-Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Zhigen Zhang
- Department of Urology, Sir Run-Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, China.
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29
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Functional Operons in Secondary Metabolic Gene Clusters in Glarea lozoyensis (Fungi, Ascomycota, Leotiomycetes). mBio 2015; 6:e00703. [PMID: 26081635 PMCID: PMC4471562 DOI: 10.1128/mbio.00703-15] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Operons are multigene transcriptional units which occur mostly in prokaryotes but rarely in eukaryotes. Protein-coding operons have not been reported in the Fungi even though they represent a very diverse kingdom of organisms. Here, we report a functional operon involved in the secondary metabolism of the fungus Glarea lozoyensis belonging to Leotiomycetes (Ascomycota). Two contiguous genes, glpks3 and glnrps7, encoding polyketide synthase and nonribosomal peptide synthetase, respectively, are cotranscribed into one dicistronic mRNA under the control of the same promoter, and the mRNA is then translated into two individual proteins, GLPKS3 and GLNRPS7. Heterologous expression in Aspergillus nidulans shows that the GLPKS3-GLNRPS7 enzyme complex catalyzes the biosynthesis of a novel pyrrolidinedione-containing compound, xenolozoyenone (compound 1), which indicates the operon is functional. Although it is structurally similar to prokaryotic operons, the glpks3-glnrps7 operon locus has a monophylogenic origin from fungi rather than having been horizontally transferred from prokaryotes. Moreover, two additional operons, glpks28-glnrps8 and glpks29-glnrps9, were verified at the transcriptional level in the same fungus. This is the first report of protein-coding operons in a member of the Fungi. Operons are multigene transcriptional units which occur mostly in prokaryotes but rarely in eukaryotes. Three operon-like gene structures for secondary metabolism that were discovered in the filamentous fungus Glarea lozoyensis are the first examples of protein-coding operons identified in a member of the Fungi. Among them, the glpks3-glnrps7 operon is responsible for the biosynthesis of xenolozoyenone, which is a novel tetramic acid-containing compound. Although structurally similar to prokaryotic operons, the glpks3-glnrps7 operon locus did not result from horizontal gene transfer from prokaryotes. In addition, operonlike structures have been predicted in silico to be common in other fungi. The common occurrence and operonlike structure in fungi provide evolutionary insight and essential data for eukaryotic gene transcription.
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30
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Zhang YF, Phung Y, Gao W, Kawa S, Hassan R, Pastan I, Ho M. New high affinity monoclonal antibodies recognize non-overlapping epitopes on mesothelin for monitoring and treating mesothelioma. Sci Rep 2015; 5:9928. [PMID: 25996440 PMCID: PMC4440525 DOI: 10.1038/srep09928] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2014] [Accepted: 03/23/2015] [Indexed: 12/17/2022] Open
Abstract
Mesothelin is an emerging cell surface target in mesothelioma and other solid tumors. Most antibody drug candidates recognize highly immunogenic Region I (296–390) on mesothelin. Here, we report a group of high-affinity non-Region I rabbit monoclonal antibodies. These antibodies do not compete for mesothelin binding with the immunotoxin SS1P that binds Region I of mesothelin. One pair of antibodies (YP218 and YP223) is suitable to detect soluble mesothelin in a sandwich ELISA with high sensitivity. The new assay can also be used to measure serum mesothelin concentration in mesothelioma patients, indicating its potential use for monitoring patients treated with current antibody therapies targeting Region I. The antibodies are highly specific and sensitive in immunostaining of mesothelioma. To explore their use in tumor therapy, we have generated the immunotoxins based on the Fv of these antibodies. One immunotoxin (YP218 Fv-PE38) exhibits potent anti-tumor cytotoxicity towards primary mesothelioma cell lines in vitro and an NCI-H226 xenograft tumor in mice. Furthermore, we have engineered a humanized YP218 Fv that retains full binding affinity for mesothelin-expressing cancer cells. In conclusion, with their unique binding properties, these antibodies may be promising candidates for monitoring and treating mesothelioma and other mesothelin-expressing cancers.
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Affiliation(s)
- Yi-Fan Zhang
- Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, Bethesda, Bethesda, MD 20892, United States
| | - Yen Phung
- Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, Bethesda, Bethesda, MD 20892, United States
| | - Wei Gao
- Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, Bethesda, Bethesda, MD 20892, United States
| | - Seiji Kawa
- Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, Bethesda, Bethesda, MD 20892, United States
| | - Raffit Hassan
- Thoracic and Gastrointestinal Oncology Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD 20892, United States
| | - Ira Pastan
- Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, Bethesda, Bethesda, MD 20892, United States
| | - Mitchell Ho
- Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, Bethesda, Bethesda, MD 20892, United States
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31
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Roh J, Byun SJ, Seo Y, KIm M, Lee JH, Kim S, Lee Y, Lee KW, Kim JK, Kwon MH. Generation of a chickenized catalytic anti-nucleic acid antibody by complementarity-determining region grafting. Mol Immunol 2015; 63:513-20. [PMID: 25458312 DOI: 10.1016/j.molimm.2014.10.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2014] [Revised: 10/07/2014] [Accepted: 10/11/2014] [Indexed: 12/24/2022]
Abstract
In contrast to a number of studies on the humanization of non-human antibodies, the reshaping of a non-human antibody into a chicken antibody has never been attempted. Therefore, nothing is known about the animal species-dependent compatibility of the framework regions (FRs) that sustain the appropriate conformation of the complementarity-determining regions (CDRs). In this study, we attempted the reshaping of the variable domains of the mouse catalytic anti-nucleic acid antibody 3D8 (m3D8) into the FRs of a chicken antibody (“chickenization”) by CDR grafting, which is a common method for the humanization of antibodies. CDRs of the acceptor chicken antibody that showed a high homology to the FRs of m3D8 were replaced with those of m3D8, resulting in the chickenized antibody (ck3D8). ck3D8 retained the biochemical properties (DNA binding, DNA hydrolysis, and cellular internalizing activities) and three-dimensional structure of m3D8 and showed reduced immunogenicity in chickens. Our study demonstrates that CDR grafting can be applied to the chickenization of a mouse antibody, probably due to the interspecies compatibility of the FRs.
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Yang J, Wang Q, Qiao C, Lin Z, Li X, Huang Y, Zhou T, Li Y, Shen B, Lv M, Feng J. Potent anti-angiogenesis and anti-tumor activity of a novel human anti-VEGF antibody, MIL60. Cell Mol Immunol 2014; 11:285-93. [PMID: 24608894 DOI: 10.1038/cmi.2014.6] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2013] [Revised: 01/01/2014] [Accepted: 01/16/2014] [Indexed: 12/28/2022] Open
Abstract
Angiogenesis is crucial for tumor development, growth and metastasis. Vascular endothelial growth factor (VEGF) has been implicated in promoting solid tumor growth and metastasis via stimulating tumor-associated angiogenesis, and blocking the activity of VEGF can starve tumors. Avastin, which is a humanized anti-VEGF antibody, has been successfully applied in clinics since 2004. However, the price of Avastin is extremely high for Chinese people. Here, we report a novel human anti-VEGF neutralizing antibody, MIL60, which shows an affinity comparable to that of Avastin (the KD value of MIL60 was 44.5 pM, while that of Avastin was 42.7 pM). MIL60 displays favorable actions in inhibiting VEGF-triggered endothelial cell proliferation (the IC50 value of MIL60 was 31±6.4 ng/ml and that of Avastin was 47±8.1 ng/ml), migration (8 µg/ml or 0.8 µg/ml MIL60 versus the control: P<0.05) and tube formation (2 µg/ml or 0.2 µg/ml MIL60 versus the control: P<0.05) via the VEGFR2 signaling pathway. Moreover, MIL60 was shown to inhibit tumor growth and angiogenesis in vivo in xenograft models of human colon carcinoma and ovarian cancer using immunotherapy and immunohistochemistry analysis (MIL60 versus N.S.: P=0.0007; Avastin versus N.S.: P=0.00046). These data suggest that MIL60 is a potential therapeutic, anti-angiogenic agent. Our work provides a novel anti-VEGF antibody, which can be considered an anti-tumor antibody candidate and a new option for patients with various cancers.
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Affiliation(s)
- Jing Yang
- 1] Laboratory of Immunology, Institute of Basic Medical Sciences, Beijing, China [2] Department of Pathogens and Immunology, Logistics College of Chinese People's Armed Police Forces, Tianjin, China
| | - Qun Wang
- Department of Ophthalmology, General Hospital of People's Liberation Army, Beijing, China
| | - Chunxia Qiao
- Laboratory of Immunology, Institute of Basic Medical Sciences, Beijing, China
| | - Zhou Lin
- Laboratory of Immunology, Institute of Basic Medical Sciences, Beijing, China
| | - Xinying Li
- Laboratory of Immunology, Institute of Basic Medical Sciences, Beijing, China
| | - Yifei Huang
- Department of Ophthalmology, General Hospital of People's Liberation Army, Beijing, China
| | - Tingting Zhou
- Laboratory of Immunology, Institute of Basic Medical Sciences, Beijing, China
| | - Yan Li
- Laboratory of Immunology, Institute of Basic Medical Sciences, Beijing, China
| | - Beifen Shen
- Laboratory of Immunology, Institute of Basic Medical Sciences, Beijing, China
| | - Ming Lv
- Laboratory of Immunology, Institute of Basic Medical Sciences, Beijing, China
| | - Jiannan Feng
- Laboratory of Immunology, Institute of Basic Medical Sciences, Beijing, China
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33
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Rüter C, Silva MR, Grabowski B, Lubos ML, Scharnert J, Poceva M, von Tils D, Flieger A, Heesemann J, Bliska JB, Schmidt MA. Rabbit monoclonal antibodies directed at the T3SS effector protein YopM identify human pathogenic Yersinia isolates. Int J Med Microbiol 2014; 304:444-51. [PMID: 24636859 DOI: 10.1016/j.ijmm.2014.02.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2013] [Revised: 01/27/2014] [Accepted: 02/02/2014] [Indexed: 01/21/2023] Open
Abstract
The Yersinia outer protein M (YopM) is a type 3 secretion system (T3SS)-dependent effector protein of Yersinia enterocolitica, Yersinia pseudotuberculosis and Yersinia pestis. Although YopM is indispensable for full virulence, its molecular functions still remain largely elusive. Recently, we could identify the recombinant YopM (rYopM) protein derived from the Y. enterocolitica strain 8081 (JB580) as a cell-penetrating protein, which down-regulates the expression of various pro-inflammatory cytokines including TNFα. In this study, we have generated rabbit monoclonal anti-YopM antibodies (RabMabs). RabMabs were characterized by SDS-PAGE and Western blotting using various truncated versions of rYopM to identify epitope-containing domains. RabMabs recognizing either the N- or C-terminus of YopM were characterized further and validated using a collection of 61 pathogenic and non-pathogenic Yersinia strains as well as exemplary strains of major intestinal bacterial pathogens such as Salmonella enterica ssp. enterica, Shigella flexneri and intestinal pathogenic Escherichia coli. RabMab 41.3 directed at the N-terminus of YopM of Y. enterocolitica strain 8081 recognized all YopM-expressing pathogenic Yersinia strains analyzed in this study but failed to recognize non-pathogenic isolates. Thus, RabMab 41.3 might be applicable for the detection of pathogenic Yersinia strains.
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Affiliation(s)
- Christian Rüter
- Institute of Infectiology - Center for Molecular Biology of Inflammation (ZMBE), University of Münster, Germany.
| | - Mariana Ruiz Silva
- Institute of Infectiology - Center for Molecular Biology of Inflammation (ZMBE), University of Münster, Germany
| | - Benjamin Grabowski
- Institute of Infectiology - Center for Molecular Biology of Inflammation (ZMBE), University of Münster, Germany
| | - Marie-Luise Lubos
- Institute of Infectiology - Center for Molecular Biology of Inflammation (ZMBE), University of Münster, Germany
| | - Julia Scharnert
- Institute of Infectiology - Center for Molecular Biology of Inflammation (ZMBE), University of Münster, Germany
| | - Marija Poceva
- Institute of Infectiology - Center for Molecular Biology of Inflammation (ZMBE), University of Münster, Germany
| | - Dominik von Tils
- Institute of Infectiology - Center for Molecular Biology of Inflammation (ZMBE), University of Münster, Germany
| | - Antje Flieger
- Division of Enteropathogenic Bacteria and Salmonella, National Reference Center for Salmonella and other Bacterial Enteric Pathogens, Robert-Koch Institute, Germany
| | - Jürgen Heesemann
- Department of Bacteriology, Max von Pettenkofer Institut, LMU München, Germany
| | - James B Bliska
- Department of Molecular Genetics and Microbiology and Center for Infectious Diseases, Stony Brook University, New York, USA
| | - M Alexander Schmidt
- Institute of Infectiology - Center for Molecular Biology of Inflammation (ZMBE), University of Münster, Germany.
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Landry JP, Fei Y, Zhu X, Ke Y, Yu G, Lee P. Discovering small molecule ligands of vascular endothelial growth factor that block VEGF-KDR binding using label-free microarray-based assays. Assay Drug Dev Technol 2014; 11:326-32. [PMID: 23772553 DOI: 10.1089/adt.2012.485] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
We present here a label-free microarray-based assay platform that we used to identify inhibitors of vascular endothelial growth factor (VEGF)-kinase-insertion domain receptor (KDR) binding. Supported by a combination of special ellipsometry-based optical detection and small molecule microarrays (SMM), this platform consists of three assays: (1) the first assay detects binding of a target protein with SMM and identifies ligands to the protein as inhibitor candidates; (2) the second assay detects binding of a receptor protein with identical SMM and subsequent binding of the target protein (a sandwich assay) to identify the ligands to the receptor protein that do not interfere with the target-receptor binding; (3) the third assay detects binding of the target protein to the receptor protein in the presence of the ligands of the target protein identified from the first assay, with the receptor protein immobilized to a solid surface through the ligands identified in the second assay, to yield dose-response curves. Using this platform, we screened 7,961 compounds from the National Cancer Institute and found 12 inhibitors to VEGF-KDR (VEGFR2) interactions with IC₅₀ ranging from 0.3 to 60 μM. The inhibitory potency of these inhibitors found in the microarray-based assay was confirmed by their inhibition of VEGF-induced VEGFR2 phosphorylation in a cell-based assay.
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Affiliation(s)
- James P Landry
- Department of Physics, University of California at Davis, Davis, CA 95616, USA
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Abstract
Rabbit hybridomas are gaining wide acceptance as serologic reagents to identify a variety of antigens, including proteins, small peptides, phosphorylated proteins, and polysaccharides. Rabbits make high-affinity IgG antibodies, all of which bind with high affinity to Protein A from Staphylococcus aureus and Protein G from Group G Streptococcus. Consequently, rabbit monoclonal antibodies of desired specificity can be rapidly detected using Protein A/G as secondary reagents. Here we describe the method for generating rabbit monoclonal antibodies using the rabbit hybridoma fusion partner 240E-1. The method begins with the immunization of rabbits and ends with the cloning the antigen-specific hybridomas.
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Affiliation(s)
- Pi-Chen Yam
- Stritch School of Medicine, Loyola University Chicago, Maywood, IL, USA
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36
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Pentameric complex of viral glycoprotein H is the primary target for potent neutralization by a human cytomegalovirus vaccine. Proc Natl Acad Sci U S A 2013; 110:E4997-5005. [PMID: 24297878 DOI: 10.1073/pnas.1316517110] [Citation(s) in RCA: 110] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Human cytomegalovirus (HCMV) can cause serious morbidity/mortality in transplant patients, and congenital HCMV infection can lead to birth defects. Developing an effective HCMV vaccine is a high medical priority. One of the challenges to the efforts has been our limited understanding of the viral antigens important for protective antibodies. Receptor-mediated viral entry to endothelial/epithelial cells requires a glycoprotein H (gH) complex comprising five viral proteins (gH, gL, UL128, UL130, and UL131). This gH complex is notably missing from HCMV laboratory strains as well as HCMV vaccines previously evaluated in the clinic. To support a unique vaccine concept based on the pentameric gH complex, we established a panel of 45 monoclonal antibodies (mAbs) from a rabbit immunized with an experimental vaccine virus in which the expression of the pentameric gH complex was restored. Over one-half (25 of 45) of the mAbs have neutralizing activity. Interestingly, affinity for an antibody to bind virions was not correlated with its ability to neutralize the virus. Genetic analysis of the 45 mAbs based on their heavy- and light-chain sequences identified at least 26 B-cell linage groups characterized by distinct binding or neutralizing properties. Moreover, neutralizing antibodies possessed longer complementarity-determining region 3 for both heavy and light chains than those with no neutralizing activity. Importantly, potent neutralizing mAbs reacted to the pentameric gH complex but not to gB. Thus, the pentameric gH complex is the primary target for antiviral antibodies by vaccination.
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37
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Farajpour Z, Rahbarizadeh F, Kazemi B, Ahmadvand D, Mohaghegh M. Identification and In Vitro Characterization of Phage-Displayed VHHs Targeting VEGF. ACTA ACUST UNITED AC 2013; 19:547-55. [DOI: 10.1177/1087057113514275] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Vascular endothelial growth factor (VEGF) is a potential target for cancer treatment because of its role in angiogenesis and its overexpression in most human cancers. Currently, anti-VEGF antibodies have been shown to be promising tools for therapeutic applications. However, large size, poor tumor penetration, immunogenicity, and production in cost- and labor-intensive conditions are major drawbacks of such agents. The antigen-binding regions of camelid single-chain antibodies (VHHs), due to their unique biophysical characteristics, offer an alternative to conventional antibodies for tumor-targeting purposes. The present study was undertaken to generate and characterize anti-VEGF VHHs from an immune VHH library using phage display. Four rounds of panning were performed, and selected VHHs were characterized using various immunological techniques. Assessment of the antigenic profile of VHHs was done using competition enzyme-linked immunosorbent assay (ELISA). Selected VHHs reacted strongly to VEGF in indirect ELISA and cross-reactivity ELISA tests. The binding affinity of three VHHs, ZFR-1, ZFR-2, and ZFR-5, ranged from 2.5 to 80 nM, and among them, ZFR-5, which was selected for proliferation assay, significantly inhibited the endothelial cell growth in a dose-dependent manner. Taken together, our results indicate that ZFR-5 and other VHHs may be promising tools in cancer research and treatment.
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Affiliation(s)
- Zahra Farajpour
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Fatemeh Rahbarizadeh
- Department of Medical Biotechnology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Bahram Kazemi
- Cellular and Molecular Biology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Davoud Ahmadvand
- School of Allied Medical Sciences, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Mohaghegh
- Department of Medical Biotechnology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
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38
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Safdari Y, Farajnia S, Asgharzadeh M, Khalili M. Antibody humanization methods – a review and update. Biotechnol Genet Eng Rev 2013; 29:175-86. [DOI: 10.1080/02648725.2013.801235] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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39
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Anti-VEGF- and anti-VEGF receptor-induced vascular alteration in mouse healthy tissues. Proc Natl Acad Sci U S A 2013; 110:12018-23. [PMID: 23818623 DOI: 10.1073/pnas.1301331110] [Citation(s) in RCA: 110] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Systemic therapy with anti-VEGF drugs such as bevacizumab is widely used for treatment of human patients with various solid tumors. However, systemic impacts of such drugs in host healthy vasculatures remain poorly understood. Here, we show that, in mice, systemic delivery of an anti-VEGF or an anti-VEGF receptor (VEGFR)-2 neutralizing antibody caused global vascular regression. Among all examined tissues, vasculatures in endocrine glands, intestinal villi, and uterus are the most affected in response to VEGF or VEGFR-2 blockades. Thyroid vascular fenestrations were virtually completely blocked by VEGF blockade, leading to marked accumulation of intraendothelial caveolae vesicles. VEGF blockade markedly increased thyroid endothelial cell apoptosis, and withdrawal of anti-VEGF resulted in full recovery of vascular density and architecture after 14 d. Prolonged anti-VEGF treatment resulted in a significant decrease of the circulating level of the predominant thyroid hormone free thyroxine, but not the minimal isoform of triiodothyronine, suggesting that chronic anti-VEGF treatment impairs thyroid functions. Conversely, VEGFR-1-specific blockade produced virtually no obvious phenotypes. These findings provide structural and functional bases of anti-VEGF-specific drug-induced side effects in relation to vascular changes in healthy tissues. Understanding anti-VEGF drug-induced vascular alterations in healthy tissues is crucial to minimize and even to avoid adverse effects produced by currently used anti-VEGF-specific drugs.
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40
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Yu Y, Lee P, Ke Y, Zhang Y, Chen J, Dai J, Li M, Zhu W, Yu GL. Development of humanized rabbit monoclonal antibodies against vascular endothelial growth factor receptor 2 with potential antitumor effects. Biochem Biophys Res Commun 2013; 436:543-50. [PMID: 23770369 DOI: 10.1016/j.bbrc.2013.06.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2013] [Accepted: 06/03/2013] [Indexed: 12/12/2022]
Abstract
Vascular endothelial growth factor-A (VEGF-A) plays a critical role in physiologic and pathologic angiogenesis through its receptors especially through VEGFR2. The lack of cross-reactivity of monoclonal antibodies with human VEGFR2/mouse Flk-1 is a major obstacle in preclinical developments. In this study, using a unique hybridoma technique, we generated a panel of 30 neutralization anti-VEGFR2 rabbit monoclonal antibodies (RabMAbs) either blocking VEGF/VEGFR2 interaction or inhibiting VEGF-stimulated VEGFR2 tyrosine kinase phosphorylation. Among 18 RabMAbs with human/mouse VEGFR2 cross-reactivity, we humanized one lead candidate RabMAb by Mutational Lineage Guided (MLG) method and further demonstrated its potent inhibition of tumor growth in xenograft mouse model. Our study suggests that RabMAbs are highly relevant for therapeutic applications.
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Affiliation(s)
- Yanlan Yu
- Department of Urology, Sir Run-Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, China.
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41
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Ozawa T, Piao X, Kobayashi E, Zhou Y, Sakurai H, Andoh T, Jin A, Kishi H, Muraguchi A. A novel rabbit immunospot array assay on a chip allows for the rapid generation of rabbit monoclonal antibodies with high affinity. PLoS One 2012; 7:e52383. [PMID: 23300658 PMCID: PMC3530603 DOI: 10.1371/journal.pone.0052383] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2012] [Accepted: 11/12/2012] [Indexed: 12/25/2022] Open
Abstract
Antigen-specific rabbit monoclonal antibodies (RaMoAbs) are useful due to their high specificity and high affinity, and the establishment of a comprehensive and rapid RaMoAb generation system has been highly anticipated. Here, we present a novel system using immunospot array assay on a chip (ISAAC) technology in which we detect and retrieve antigen-specific antibody-secreting cells from the peripheral blood lymphocytes of antigen-immunized rabbits and produce antigen-specific RaMoAbs with 10–12 M affinity within a time period of only 7 days. We have used this system to efficiently generate RaMoAbs that are specific to a phosphorylated signal-transducing molecule. Our system provides a new method for the comprehensive and rapid production of RaMoAbs, which may contribute to laboratory research and clinical applications.
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Affiliation(s)
- Tatsuhiko Ozawa
- Department of Immunology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, Japan
| | - Xiuhong Piao
- Department of Immunology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, Japan
| | - Eiji Kobayashi
- Department of Immunology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, Japan
| | - Yue Zhou
- Department of Cancer Cell Biology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, Japan
| | - Hiroaki Sakurai
- Department of Cancer Cell Biology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, Japan
| | - Tsugunobu Andoh
- Department of Applied Pharmacology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, Japan
| | - Aishun Jin
- Department of Immunology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, Japan
- Department of Immunology, College of Basic Medical Sciences, Harbin Medical University, Nangang District, Harbin, China
| | - Hiroyuki Kishi
- Department of Immunology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, Japan
- * E-mail:
| | - Atsushi Muraguchi
- Department of Immunology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, Japan
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42
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Tumor cell-derived placental growth factor sensitizes antiangiogenic and antitumor effects of anti-VEGF drugs. Proc Natl Acad Sci U S A 2012; 110:654-9. [PMID: 23267058 DOI: 10.1073/pnas.1209310110] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
The role of placental growth factor (PlGF) in modulation of tumor angiogenesis and tumor growth remains an enigma. Furthermore, anti-PlGF therapy in tumor angiogenesis and tumor growth remains controversial in preclinical tumor models. Here we show that in both human and mouse tumors, PlGF induced the formation of dilated and normalized vascular networks that were hypersensitive to anti-VEGF and anti-VEGFR-2 therapy, leading to dormancy of a substantial number of avascular tumors. Loss-of-function using plgf shRNA in a human choriocarcinoma significantly accelerated tumor growth rates and acquired resistance to anti-VEGF drugs, whereas gain-of-function of PlGF in a mouse tumor increased anti-VEGF sensitivity. Further, we show that VEGFR-2 and VEGFR-1 blocking antibodies displayed opposing effects on tumor angiogenesis. VEGFR-1 blockade and genetic deletion of the tyrosine kinase domain of VEGFR-1 resulted in enhanced tumor angiogenesis. These findings demonstrate that tumor-derived PlGF negatively modulates tumor angiogenesis and tumor growth and may potentially serve as a predictive marker of anti-VEGF cancer therapy.
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43
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Pan S, Wang F, Huang P, Xu T, Zhang L, Xu J, Li Q, Xia W, Sun R, Huang L, Peng Y, Qin X, Shu Y, Hu Z, Shen H. The study on newly developed McAb NJ001 specific to non-small cell lung cancer and its biological characteristics. PLoS One 2012; 7:e33009. [PMID: 22479355 PMCID: PMC3316548 DOI: 10.1371/journal.pone.0033009] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2011] [Accepted: 02/02/2012] [Indexed: 01/05/2023] Open
Abstract
Monoclonal antibody (McAb) is the key tool for cancer immunodiagnosis and immunotherapy. McAb-based immunotherapy that targets tumor antigens has had great achivement. In this study, a cell clone which kept secreting high-titer IgG1-type McAb named NJ001 against human non-small cell lung cancer (NSCLC) cells was obtained. The titer of purified NJ001 was 2×106. The antigen named SP70 of NSCLC specifically identified by NJ001 was proved to be a protein with the relative molecular mass (Mr) of 70 kDa. The results of immunohistochemical staining indicated that NJ001 could positively react to NSCLC, but weak positively or negatively react to human small-cell lung cancer (SCLC), pulmonary pseudotumor and other epithelial tumors. In soft agar assay, the colony formation efficiency in NJ001 groups decreased in a dose-dependent manner. For the concentration of 100 µg/ml, 200 µg/ml and 400 µg/ml, the inhibition ratio of colony formation was 23.4%, 62.5% and 100% respectively. Meanwhile, NJ001 caused significant reduction in tumor volume and tumor weight compared to control mice in lung cancer xenograft model. The tumor growth inhibition ratio in 200 µg, 400 µg and 800 µg NJ001 groups was 10.44%, 37.29% and 44.04%, respectively. NJ001 also led to cytomorphological changes and induced the apoptosis of human lung adenocarcinoma cell line SPC-A1 significantly. The newly developed NJ001 selectively reacted to NSCLC and exhibited anti-tumor activity both in vitro and in vivo. NJ001 is of great value concerning immunodiagnostics and immunotherapy for NSCLC and holds promise for further research regarding the mechanism underlying tumor progression of NSCLC.
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MESH Headings
- Adenocarcinoma/drug therapy
- Adenocarcinoma/immunology
- Adenocarcinoma/pathology
- Animals
- Antibodies, Monoclonal/biosynthesis
- Antibodies, Monoclonal/immunology
- Antibodies, Monoclonal/pharmacology
- Antigens, Neoplasm/immunology
- Apoptosis/drug effects
- Blotting, Western
- Carcinoma, Non-Small-Cell Lung/drug therapy
- Carcinoma, Non-Small-Cell Lung/immunology
- Carcinoma, Non-Small-Cell Lung/pathology
- Cell Line
- Cell Line, Tumor
- Cell Proliferation/drug effects
- Dose-Response Relationship, Drug
- Female
- Humans
- Hybridomas
- Immunohistochemistry
- Lung Neoplasms/drug therapy
- Lung Neoplasms/immunology
- Lung Neoplasms/pathology
- Mice
- Mice, Inbred BALB C
- Mice, Nude
- Molecular Weight
- Time Factors
- Tumor Burden/drug effects
- Tumor Burden/immunology
- Xenograft Model Antitumor Assays
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Affiliation(s)
- Shiyang Pan
- Department of Laboratory Medicine, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China.
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44
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Ceccarelli S, Romano F, Angeloni A, Marchese C. Potential dual role of KGF/KGFR as a target option in novel therapeutic strategies for the treatment of cancers and mucosal damages. Expert Opin Ther Targets 2012; 16:377-93. [PMID: 22443411 DOI: 10.1517/14728222.2012.671813] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
INTRODUCTION Keratinocyte growth factor (KGF) and its receptor KGFR play a pivotal role in regulating cell proliferation, migration, differentiation and survival, in response to injury and tissue repair. Altered expression of this pathway in cancer opened the way to the development of targeted therapy to achieve KGFR inhibition. Nevertheless, KGF administration has been demonstrated to ameliorate oral mucositis resulting from chemoradiotherapy, besides protecting epithelial cells against radiation-induced damage. AREAS COVERED This review focuses on the potential therapeutic interest of KGF/KGFR in two different areas: selective inhibition of KGFR signaling for the treatment of cancers characterized by upregulation of this pathway and administration of KGF to protect epithelial cells from induced damage. The review presents an overview of therapeutic strategies in both directions. EXPERT OPINION KGF/KGFR signaling can contribute to enhancing the malignant potential of epithelial cells and to promoting tumorigenesis. On the other hand, the therapeutic use of KGF in cancer patients provides epithelial protection, reducing chemotherapy side effects. FGFRs have become attractive antitumor targets and various inhibitors have been used to contrast tumor cell growth. The identification of KGFR-specific molecules might represent a promising therapeutic strategy that could increase the window of available agents and treatment methods.
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Affiliation(s)
- Simona Ceccarelli
- Sapienza University of Rome, Department of Experimental Medicine, Roma, Italy
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45
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Feng L, Wang X, Jin H. Rabbit monoclonal antibody: potential application in cancer therapy. Am J Transl Res 2011; 3:269-274. [PMID: 21633632 PMCID: PMC3102571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2011] [Accepted: 04/19/2011] [Indexed: 05/30/2023]
Abstract
By targeting antigens specifically, monoclonal antibodies represent a new class of therapeutic agents for the clinical management of various diseases including cancers. Monoclonal antibody technology has been greatly developed by reducing murine content in antibodies to minimize side effects in clinical applications. However, several intrinsic disadvantages of antibodies with murine origin limit the clinical efficacy of monoclonal antibodies based targeted therapy. The development of rabbit monoclonal antibody technology provides an alternative source of monoclonal antibodies with higher specificity and less cost for the development of routine targeted therapy against cancers.
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Affiliation(s)
- Lifeng Feng
- College of Life Science, Zhejiang UniversityHangzhou, 310016, China
- Laboratory of Cancer Epigenetics, Biomedical Research Center, Sir Runrun Shaw Hospital, School of Medicine, Zhejiang UniversityHangzhou, 310016, China
| | - Xian Wang
- Laboratory of Cancer Epigenetics, Biomedical Research Center, Sir Runrun Shaw Hospital, School of Medicine, Zhejiang UniversityHangzhou, 310016, China
| | - Hongchuan Jin
- Laboratory of Cancer Epigenetics, Biomedical Research Center, Sir Runrun Shaw Hospital, School of Medicine, Zhejiang UniversityHangzhou, 310016, China
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Saharinen P, Eklund L, Pulkki K, Bono P, Alitalo K. VEGF and angiopoietin signaling in tumor angiogenesis and metastasis. Trends Mol Med 2011; 17:347-62. [PMID: 21481637 DOI: 10.1016/j.molmed.2011.01.015] [Citation(s) in RCA: 333] [Impact Index Per Article: 25.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2010] [Revised: 01/24/2011] [Accepted: 01/28/2011] [Indexed: 12/12/2022]
Abstract
Solid tumors require blood vessels for growth and dissemination, and lymphatic vessels as additional conduits for metastatic spread. The identification of growth factor receptor pathways regulating angiogenesis has led to the clinical approval of the first antiangiogenic molecules targeted against the vascular endothelial growth factor (VEGF)-VEGF receptor (VEGFR)-2 pathway. However, in many cases resistance to anti-VEGF-VEGFR therapy occurs, and thus far the clinical benefit has been limited to only modest improvements in overall survival. Therefore, novel treatment modalities are required. Here, we discuss the members of the VEGF-VEGFR family as well as the angiopoietin growth factors and their Tie receptors as potential novel targets for antiangiogenic and antilymphangiogenic therapies.
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Affiliation(s)
- Pipsa Saharinen
- Molecular/Cancer Biology, Research Programs Unit, Biomedicum Helsinki, P.O.B. 63, (Haartmaninkatu 8), FIN-00014, University of Helsinki, Finland
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Gubin MM, Calaluce R, Davis JW, Magee JD, Strouse CS, Shaw DP, Ma L, Brown A, Hoffman T, Rold TL, Atasoy U. Overexpression of the RNA binding protein HuR impairs tumor growth in triple negative breast cancer associated with deficient angiogenesis. Cell Cycle 2010; 9:3337-46. [PMID: 20724828 DOI: 10.4161/cc.9.16.12711] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Interactions between RNA binding proteins (RBPs) and genes are not well understood, especially in regulation of angiogenesis. The RBP HuR binds to the AU-rich (ARE) regions of labile mRNAs, facilitating their translation into protein and has been hypothesized to be a tumor-maintenance gene. Elevated levels of cytoplasmic HuR directly correlate with increased invasiveness and poor prognosis for many cancers, including those of the breast. HuR controls the expression of multiple genes involved in angiogenesis including VEGFα, HIF1α and thrombospondin 1 (TSP1). We investigated the role of HuR in estrogen receptor negative (ER(-)) breast cancer. MDA-MB-231 cells with higher levels of HuR have alterations in cell cycle kinetics and faster growth. Unexpectedly, HuR overexpression significantly interfered with tumor growth in orthotopic mouse models. The putative mechanism seems to be an anti-angiogenetic effect by increasing expression of TSP1 but also surprisingly, downregulating VEGF, a target which HuR normally increases. Our findings reveal that HuR may be regulating a cluster of genes involved in blood vessel formation which controls tumor angiogenesis. An approach of modulating HuR levels may overcome limitations associated with monotherapies targeting tumor vessel formation.
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Affiliation(s)
- Matthew M Gubin
- Department of Surgery, University of Missouri, Columbia, Missouri, USA
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An Z. Monoclonal antibodies - a proven and rapidly expanding therapeutic modality for human diseases. Protein Cell 2010; 1:319-330. [PMID: 21203944 PMCID: PMC4875100 DOI: 10.1007/s13238-010-0052-8] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2010] [Accepted: 03/31/2010] [Indexed: 12/19/2022] Open
Abstract
The study of antibodies has been a focal point in modern biology and medicine since the early 1900s. However, progress in therapeutic antibody development was slow and intermittent until recently. The first antibody therapy, murine-derived murononab OKT3 for acute organ rejection, was approved by the US Food and Drug Administration (FDA) in 1986, more than a decade after César Milstein and Georges Köhler developed methods for the isolation of mouse monoclonal antibodies from hybridoma cells in 1975. As a result of the scientific, technological, and clinical breakthroughs in the 1980s and 1990s, the pace of therapeutic antibody discovery and development accelerated. Antibodies are becoming a major drug modality with more than two dozen therapeutic antibodies in the clinic and hundreds more in development. Despite the progress, need for improvement exists at every level. Antibody therapeutics provides fertile ground for protein scientists to fulfill the dream of personalized medicine through basic scientific discovery and technological innovation.
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Affiliation(s)
- Zhiqiang An
- Brown Foundation Institute of Molecular Medicine, University of Texas Health Science Center at Houston, Houston, TX, 77030, USA.
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