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Hacker B, Schultheiß C, Döring M, Kurzik-Dumke U. Molecular partners of hNOT/ALG3, the human counterpart of the Drosophila NOT and yeast ALG3 gene, suggest its involvement in distinct cellular processes relevant to congenital disorders of glycosylation, cancer, neurodegeneration and a variety of further pathologies. Hum Mol Genet 2018; 27:1858-1878. [DOI: 10.1093/hmg/ddy087] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Accepted: 03/06/2018] [Indexed: 01/04/2023] Open
Affiliation(s)
- Benedikt Hacker
- Laboratory for Comparative Tumour Biology, Institute of Medical Microbiology and Hygiene, University Medical Centre, Johannes Gutenberg University, 55131 Mainz, Germany
| | - Christoph Schultheiß
- Laboratory for Comparative Tumour Biology, Institute of Medical Microbiology and Hygiene, University Medical Centre, Johannes Gutenberg University, 55131 Mainz, Germany
| | - Michael Döring
- Laboratory for Comparative Tumour Biology, Institute of Medical Microbiology and Hygiene, University Medical Centre, Johannes Gutenberg University, 55131 Mainz, Germany
| | - Ursula Kurzik-Dumke
- Laboratory for Comparative Tumour Biology, Institute of Medical Microbiology and Hygiene, University Medical Centre, Johannes Gutenberg University, 55131 Mainz, Germany
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Corraliza-Gorjón I, Somovilla-Crespo B, Santamaria S, Garcia-Sanz JA, Kremer L. New Strategies Using Antibody Combinations to Increase Cancer Treatment Effectiveness. Front Immunol 2017; 8:1804. [PMID: 29312320 PMCID: PMC5742572 DOI: 10.3389/fimmu.2017.01804] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Accepted: 11/30/2017] [Indexed: 12/14/2022] Open
Abstract
Antibodies have proven their high value in antitumor therapy over the last two decades. They are currently being used as the first-choice to treat some of the most frequent metastatic cancers, like HER2+ breast cancers or colorectal cancers, currently treated with trastuzumab (Herceptin) and bevacizumab (Avastin), respectively. The impressive therapeutic success of antibodies inhibiting immune checkpoints has extended the use of therapeutic antibodies to previously unanticipated tumor types. These anti-immune checkpoint antibodies allowed the cure of patients devoid of other therapeutic options, through the recovery of the patient’s own immune response against the tumor. In this review, we describe how the antibody-based therapies will evolve, including the use of antibodies in combinations, their main characteristics, advantages, and how they could contribute to significantly increase the chances of success in cancer therapy. Indeed, novel combinations will consist of mixtures of antibodies against either different epitopes of the same molecule or different targets on the same tumor cell; bispecific or multispecific antibodies able of simultaneously binding tumor cells, immune cells or extracellular molecules; immunomodulatory antibodies; antibody-based molecules, including fusion proteins between a ligand or a receptor domain and the IgG Fab or Fc fragments; autologous or heterologous cells; and different formats of vaccines. Through complementary mechanisms of action, these combinations could contribute to elude the current limitations of a single antibody which recognizes only one particular epitope. These combinations may allow the simultaneous attack of the cancer cells by using the help of the own immune cells and exerting wider therapeutic effects, based on a more specific, fast, and robust response, trying to mimic the action of the immune system.
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Affiliation(s)
- Isabel Corraliza-Gorjón
- Department of Immunology and Oncology, Centro Nacional de Biotecnologia (CNB-CSIC), Madrid, Spain
| | - Beatriz Somovilla-Crespo
- Department of Immunology and Oncology, Centro Nacional de Biotecnologia (CNB-CSIC), Madrid, Spain
| | - Silvia Santamaria
- Department of Cellular and Molecular Medicine, Centro de Investigaciones Biologicas (CIB-CSIC), Madrid, Spain
| | - Jose A Garcia-Sanz
- Department of Cellular and Molecular Medicine, Centro de Investigaciones Biologicas (CIB-CSIC), Madrid, Spain
| | - Leonor Kremer
- Department of Immunology and Oncology, Centro Nacional de Biotecnologia (CNB-CSIC), Madrid, Spain
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Merk D, Schubert-Zsilavecz M. The Linker Approach. METHODS AND PRINCIPLES IN MEDICINAL CHEMISTRY 2017. [DOI: 10.1002/9783527674381.ch8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Daniel Merk
- Goethe University Frankfurt; Institute of Pharmaceutical Chemistry; Max-von-Laue-Str. 9 60438 Frankfurt Germany
| | - Manfred Schubert-Zsilavecz
- Goethe University Frankfurt; Institute of Pharmaceutical Chemistry; Max-von-Laue-Str. 9 60438 Frankfurt Germany
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Ma J, Li Q, Yu Z, Cao Z, Liu S, Chen L, Li H, Gao S, Yan T, Wang Y, Liu Q. Immunotherapy Strategies Against Multiple Myeloma. Technol Cancer Res Treat 2017. [PMCID: PMC5762093 DOI: 10.1177/1533034617743155] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
Multiple myeloma is a monoclonal B-cell malignancy characterized by an accumulation of malignant plasma cells in the bone marrow, the presence of a monoclonal protein in the serum and/or urine, decreased normal immunoglobulin levels, and lytic bone disease. Patients with multiple myeloma benefit from combination therapy including novel therapeutic agents followed by autologous stem cell transplantation prolonged maintenance therapy. However, multiple myeloma remains incurable; most patients with multiple myeloma will eventually become resistant to chemotherapy, and progression or relapse of the disease is inevitable. Immunotherapy represents a novel therapeutic approach with few adverse effects and good targeting capability that might be a powerful pool to allow long-term control of minimal residual disease. This article reviews the literature evaluating 4 major immunotherapeutic approaches for multiple myeloma including cellular immunotherapy, humoral immunotherapy, radio immunotherapy, and immunomodulation.
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Affiliation(s)
- Jing Ma
- Tianjin Key Laboratory of Cancer Prevention and Therapy, Department of Hematology and Blood and Marrow Transplantation, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Hexi District, Tianjin, People’s Republic of China
| | - Qian Li
- Tianjin Key Laboratory of Cancer Prevention and Therapy, Department of Hematology and Blood and Marrow Transplantation, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Hexi District, Tianjin, People’s Republic of China
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Science and Peking Union Medical College, Tianjin, People’s Republic of China
| | - Zhen Yu
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Disease Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, People’s Republic of China
| | - Zeng Cao
- Tianjin Key Laboratory of Cancer Prevention and Therapy, Department of Hematology and Blood and Marrow Transplantation, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Hexi District, Tianjin, People’s Republic of China
| | - Su Liu
- Tianjin Key Laboratory of Cancer Prevention and Therapy, Department of Hematology and Blood and Marrow Transplantation, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Hexi District, Tianjin, People’s Republic of China
| | - Lin Chen
- Tianjin Key Laboratory of Cancer Prevention and Therapy, Department of Hematology and Blood and Marrow Transplantation, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Hexi District, Tianjin, People’s Republic of China
| | - Han Li
- Tianjin Key Laboratory of Cancer Prevention and Therapy, Department of Hematology and Blood and Marrow Transplantation, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Hexi District, Tianjin, People’s Republic of China
| | - Shuang Gao
- Tianjin Key Laboratory of Cancer Prevention and Therapy, Department of Hematology and Blood and Marrow Transplantation, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Hexi District, Tianjin, People’s Republic of China
| | - Tinghui Yan
- Tianjin Key Laboratory of Cancer Prevention and Therapy, Department of Hematology and Blood and Marrow Transplantation, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Hexi District, Tianjin, People’s Republic of China
| | - Yafei Wang
- Tianjin Key Laboratory of Cancer Prevention and Therapy, Department of Hematology and Blood and Marrow Transplantation, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Hexi District, Tianjin, People’s Republic of China
| | - Qiang Liu
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Science and Peking Union Medical College, Tianjin, People’s Republic of China
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Ssadh HA, Spencer PS, Alabdulmenaim W, Alghamdi R, Madar IH, Miranda-Sayago JM, Fernández N. Measurements of heterotypic associations between cluster of differentiation CD74 and CD44 in human breast cancer-derived cells. Oncotarget 2017; 8:92143-92156. [PMID: 29190904 PMCID: PMC5696170 DOI: 10.18632/oncotarget.20922] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Accepted: 08/17/2017] [Indexed: 01/06/2023] Open
Abstract
Interactions between pairs of membrane-bound receptors can enhance tumour development with implications for targeted therapies for cancer. Here we demonstrate clear heterotypic interaction between CD74 and CD44, which might act in synergy and hence contribute to breast cancer progression. CD74, a type II transmembrane glycoprotein, is a chaperone for MHC class II biosynthesis and a receptor for the MIF. CD44 is the receptor for hyaluronic acid and is a Type I transmembrane protein. Interactions between CD74, MIF and the intra-cytoplasmic domain of CD44 result in activation of ERK1/2 pathway, leading to increased cell proliferation and decreased apoptosis. The level of CD44 in the breast tumor cell lines CAMA-1, MDA-MB-231, MDA-MB-435 and the immortalized normal luminal cell line 226LDM was higher than that of CD74. It was also observed that CD74 and CD44 exhibit significant variation in expression levels across the cells. CD74 and CD44 were observed to accumulate in cytoplasmic compartments, suggesting they associate with each other to facilitate tumour growth and metastasis. Use of a novel and validated colocalisation and image processing approach, coupled with co-immunoprecipitation, confirmed that CD74 and CD44 physically interact, suggesting a possible role in breast tumour growth. This is the first time that CD74 and CD44 colocalization has been quantified in breast cancer cells using a non-invasive and validated bioimaging procedure. Measuring the co-expression levels of CD74 and CD44 could potentially be used as a ‘biomarker signature’ to monitor different stages of breast cancer.
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Affiliation(s)
- Hussain Al Ssadh
- School of Biological Sciences, University of Essex, Wivenhoe Park, Colchester, Essex CO4 3SQ, United Kingdom
| | - Patrick S Spencer
- School of Biological Sciences, University of Essex, Wivenhoe Park, Colchester, Essex CO4 3SQ, United Kingdom
| | - Waleed Alabdulmenaim
- School of Biological Sciences, University of Essex, Wivenhoe Park, Colchester, Essex CO4 3SQ, United Kingdom.,Pathology Department, College of Medicine, Qassim University, Qassim, Saudi Arabia
| | - Rana Alghamdi
- School of Biological Sciences, University of Essex, Wivenhoe Park, Colchester, Essex CO4 3SQ, United Kingdom.,King Abdulaziz University, Rabigh Campus, Rabigh, Saudi Arabia
| | - Inamul Hasan Madar
- Department of Biotechnology and Genetic Engineering, Bharathidasan University, Tiruchirappalli, 620024, Tamil Nadu, India
| | - Jose M Miranda-Sayago
- School of Biological Sciences, University of Essex, Wivenhoe Park, Colchester, Essex CO4 3SQ, United Kingdom
| | - Nelson Fernández
- School of Biological Sciences, University of Essex, Wivenhoe Park, Colchester, Essex CO4 3SQ, United Kingdom
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Wolska-Washer A, Robak P, Smolewski P, Robak T. Emerging antibody-drug conjugates for treating lymphoid malignancies. Expert Opin Emerg Drugs 2017; 22:259-273. [PMID: 28792782 DOI: 10.1080/14728214.2017.1366447] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
INTRODUCTION Antibody-drug conjugates (ADC) are monoclonal antibodies (Mabs) attached to biologically active drugs through specialized chemical linkers. They deliver and release cytotoxic agents at the tumor site, reducing the likelihood of systemic exposure and therefore toxicity. These agents should improve the potency of chemotherapy by increasing the accumulation of cytotoxic the drug within or near the neoplastic cells with reduced systemic effects. Areas covered: A literature review was conducted of the MEDLINE database PubMed for articles in English examining Mabs, B-cell receptor pathway inhibitors and immunomodulating drugs. Publications from 2000 through April 2017 were scrutinized. Conference proceedings from the previous five years of the American Society of Hematology, European Hematology Association, American Society of Clinical Oncology, and ACR/ARHP Annual Scientific Meetings were searched manually. Additional relevant publications were obtained by reviewing the references from the chosen articles. Expert opinion: Newer ADCs show promise as treatment for several hematologic malignancies, especially lymphoma, multiple myeloma, and leukemia. However, definitive data from ongoing and future clinical trials will aid in better defining the status of these agents in the treatment of these diseases.
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Affiliation(s)
| | - Pawel Robak
- b Department of Experimental Hematology , Medical University of Lodz , Lodz , Poland
| | - Piotr Smolewski
- b Department of Experimental Hematology , Medical University of Lodz , Lodz , Poland
| | - Tadeusz Robak
- a Department of Hematology , Medical University of Lodz , Lodz , Poland
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Abstract
Spatial heterogeneity of transcriptional and genetic markers between physically isolated biopsies of a single tumor poses major barriers to the identification of biomarkers and the development of targeted therapies that will be effective against the entire tumor. We analyzed the spatial heterogeneity of multiregional biopsies from 35 patients, using a combination of transcriptomic and genomic profiles. Medulloblastomas (MBs), but not high-grade gliomas (HGGs), demonstrated spatially homogeneous transcriptomes, which allowed for accurate subgrouping of tumors from a single biopsy. Conversely, somatic mutations that affect genes suitable for targeted therapeutics demonstrated high levels of spatial heterogeneity in MB, malignant glioma, and renal cell carcinoma (RCC). Actionable targets found in a single MB biopsy were seldom clonal across the entire tumor, which brings the efficacy of monotherapies against a single target into question. Clinical trials of targeted therapies for MB should first ensure the spatially ubiquitous nature of the target mutation.
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Agerbæk MØ, Pereira MA, Clausen TM, Pehrson C, Oo HZ, Spliid C, Rich JR, Fung V, Nkrumah F, Neequaye J, Biggar RJ, Reynolds SJ, Tosato G, Pullarkat ST, Ayers LW, Theander TG, Daugaard M, Bhatia K, Nielsen MA, Mbulaiteye SM, Salanti A. Burkitt lymphoma expresses oncofetal chondroitin sulfate without being a reservoir for placental malaria sequestration. Int J Cancer 2017; 140:1597-1608. [PMID: 27997697 PMCID: PMC5318225 DOI: 10.1002/ijc.30575] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Accepted: 12/02/2016] [Indexed: 12/22/2022]
Abstract
Burkitt lymphoma (BL) is a malignant disease, which is frequently found in areas with holoendemic Plasmodium falciparum malaria. We have previously found that the VAR2CSA protein is present on malaria-infected erythrocytes and facilitates a highly specific binding to the placenta. ofCS is absent in other non-malignant tissues and thus VAR2CSA generally facilitates parasite sequestration and accumulation in pregnant women. In this study, we show that the specific receptor for VAR2CSA, the oncofetal chondroitin sulfate (ofCS), is likewise present in BL tissue and cell lines. We therefore explored whether ofCS in BL could act as anchor site for VAR2CSA-expressing infected erythrocytes. In contrast to the placenta, we found no evidence of in vivo sequestering of infected erythrocytes in the BL tissue. Furthermore, we found VAR2CSA-specific antibody titers in children with endemic BL to be lower than in control children from the same malaria endemic region. The abundant presence of ofCS in BL tissue and the absence of ofCS in non-malignant tissue encouraged us to examine whether recombinant VAR2CSA could be used to target BL. We confirmed the binding of VAR2CSA to BL-derived cells and showed that a VAR2CSA drug conjugate efficiently killed the BL-derived cell lines in vitro. These results identify ofCS as a novel therapeutic BL target and highlight how VAR2CSA could be used as a tool for the discovery of novel approaches for directing BL therapy.
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Affiliation(s)
- Mette Ø. Agerbæk
- Centre for Medical Parasitology at Department of Immunology and Microbiology, University of Copenhagen and Department of Infectious Diseases, Copenhagen University Hospital, Copenhagen, Denmark
| | - Marina A. Pereira
- Centre for Medical Parasitology at Department of Immunology and Microbiology, University of Copenhagen and Department of Infectious Diseases, Copenhagen University Hospital, Copenhagen, Denmark
| | - Thomas M. Clausen
- Centre for Medical Parasitology at Department of Immunology and Microbiology, University of Copenhagen and Department of Infectious Diseases, Copenhagen University Hospital, Copenhagen, Denmark
- Vancouver Prostate Centre, Vancouver, BC V6H 3Z6, Canada
- Department of Urologic Sciences, University of British Columbia, Vancouver, BC V6H 3Z6, Canada
| | - Caroline Pehrson
- Centre for Medical Parasitology at Department of Immunology and Microbiology, University of Copenhagen and Department of Infectious Diseases, Copenhagen University Hospital, Copenhagen, Denmark
| | - Htoo Zarni Oo
- Vancouver Prostate Centre, Vancouver, BC V6H 3Z6, Canada
- Department of Urologic Sciences, University of British Columbia, Vancouver, BC V6H 3Z6, Canada
| | - Charlotte Spliid
- Centre for Medical Parasitology at Department of Immunology and Microbiology, University of Copenhagen and Department of Infectious Diseases, Copenhagen University Hospital, Copenhagen, Denmark
| | | | | | | | - Janet Neequaye
- Department of Child Health, Korle Bu University Teaching Hospital, Accra, Ghana
| | - Robert J. Biggar
- Institute of Health and Biotechnology, Queensland University of Technology, Brisbane, Australia
| | - Steven J. Reynolds
- Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland
| | - Giovanna Tosato
- Laboratory of Cellular Oncology, National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - Sheeja T. Pullarkat
- Department of Pathology and Laboratory Medicine, University of California, Los Angeles
| | - Leona W. Ayers
- Department of Pathology, The Ohio State University, Columbus, Ohio
| | - Thor G. Theander
- Centre for Medical Parasitology at Department of Immunology and Microbiology, University of Copenhagen and Department of Infectious Diseases, Copenhagen University Hospital, Copenhagen, Denmark
| | - Mads Daugaard
- Vancouver Prostate Centre, Vancouver, BC V6H 3Z6, Canada
- Department of Urologic Sciences, University of British Columbia, Vancouver, BC V6H 3Z6, Canada
| | - Kishor Bhatia
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - Morten A. Nielsen
- Centre for Medical Parasitology at Department of Immunology and Microbiology, University of Copenhagen and Department of Infectious Diseases, Copenhagen University Hospital, Copenhagen, Denmark
| | | | - Ali Salanti
- Centre for Medical Parasitology at Department of Immunology and Microbiology, University of Copenhagen and Department of Infectious Diseases, Copenhagen University Hospital, Copenhagen, Denmark
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Expression of CD74 in invasive breast carcinoma: its relation to Nottingham Prognostic Index, hormone receptors, and HER2 immunoprofile. TUMORI JOURNAL 2017; 103:193-203. [PMID: 27834468 DOI: 10.5301/tj.5000562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/02/2016] [Indexed: 02/05/2023]
Abstract
PURPOSE To study the immunohistochemical expression of CD74 in series of invasive breast carcinomas classified according to their estrogen receptor (ER), progesterone receptor (PR), and human epidermal growth factor receptor 2 (HER2) immunoprofile and explore its correlation to Nottingham Prognostic Index (NPI) and tumor pathologic stage to determine if it has a prognostic value. METHODS A total of 160 cases of mammary carcinoma were classified broadly according to their ER, PR, and HER2 expression into luminal, HER2-positive, and triple-negative groups. The NPI was calculated and pathologic stage was recorded for each individual case and cases were classified into different prognostic groups. The CD74 expression was evaluated immunohistochemically and correlated to different prognostic variables. RESULTS The CD74 immunohistochemical expression in invasive breast carcinoma was significantly higher in triple-negative tumors, higher tumor grades, presence of lymph nodal metastasis, higher tumor stages, and higher NPI scores. CONCLUSIONS The CD74 might be a useful prognostic indicator predicting poor outcome of patients with breast carcinoma. Its consistent expression in triple-negative breast carcinomas points to the need of further studies to test the possibility if it can be targeted in treatment of breast carcinoma, especially in such groups.
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Aghevlian S, Boyle AJ, Reilly RM. Radioimmunotherapy of cancer with high linear energy transfer (LET) radiation delivered by radionuclides emitting α-particles or Auger electrons. Adv Drug Deliv Rev 2017; 109:102-118. [PMID: 26705852 DOI: 10.1016/j.addr.2015.12.003] [Citation(s) in RCA: 99] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2015] [Revised: 11/26/2015] [Accepted: 12/06/2015] [Indexed: 12/31/2022]
Abstract
Radioimmunotherapy (RIT) aims to selectively deliver radionuclides emitting α-particles, β-particles or Auger electrons to tumors by conjugation to monoclonal antibodies (mAbs) that recognize tumor-associated antigens/receptors. The approach has been most successful for treatment of non-Hodgkin's B-cell lymphoma but challenges have been encountered in extending these promising results to the treatment of solid malignancies. These challenges include the low potency of β-particle emitters such as 131I, 177Lu or 90Y which have been commonly conjugated to the mAbs, due to their low linear energy transfer (LET=0.1-1.0keV/μm). Furthermore, since the β-particles have a 2-10mm range, there has been dose-limiting non-specific toxicity to hematopoietic stem cells in the bone marrow (BM) due to the cross-fire effect. Conjugation of mAbs to α-particle-emitters (e.g. 225Ac, 213Bi, 212Pb or 211At) or Auger electron-emitters (e.g. 111In, 67Ga, 123I or 125I) would increase the potency of RIT due to their high LET (50-230keV/μm and 4 to 26keV/μm, respectively). In addition, α-particles have a range in tissues of 28-100μm and Auger electrons are nanometer in range which greatly reduces or eliminates the cross-fire effect compared to β-particles, potentially reducing their non-specific toxicity to the BM. In this review, we describe the results of preclinical and clinical studies of RIT of cancer using radioimmunoconjugates emitting α-particles or Auger electrons, and discuss the potential of these high LET forms of radiation to improve the outcome of cancer patients.
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Affiliation(s)
- Sadaf Aghevlian
- Department of Pharmaceutical Sciences, University of Toronto, Toronto, ON, Canada
| | - Amanda J Boyle
- Department of Pharmaceutical Sciences, University of Toronto, Toronto, ON, Canada
| | - Raymond M Reilly
- Department of Pharmaceutical Sciences, University of Toronto, Toronto, ON, Canada; Department of Medical Imaging, University of Toronto, Toronto, ON, Canada; Toronto General Research Institute and Joint Department of Medical Imaging, University Health Network, Toronto, ON, Canada.
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Ku M, Chong G, Hawkes EA. Tumour cell surface antigen targeted therapies in B-cell lymphomas: Beyond rituximab. Blood Rev 2017; 31:23-35. [DOI: 10.1016/j.blre.2016.08.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Revised: 06/26/2016] [Accepted: 08/02/2016] [Indexed: 01/16/2023]
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Al-Hujaily EM, Oldham RAA, Hari P, Medin JA. Development of Novel Immunotherapies for Multiple Myeloma. Int J Mol Sci 2016; 17:E1506. [PMID: 27618026 PMCID: PMC5037783 DOI: 10.3390/ijms17091506] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2016] [Revised: 08/24/2016] [Accepted: 09/01/2016] [Indexed: 12/12/2022] Open
Abstract
Multiple myeloma (MM) is a disorder of terminally differentiated plasma cells characterized by clonal expansion in the bone marrow (BM). It is the second-most common hematologic malignancy. Despite significant advances in therapeutic strategies, MM remains a predominantly incurable disease emphasizing the need for the development of new treatment regimens. Immunotherapy is a promising treatment modality to circumvent challenges in the management of MM. Many novel immunotherapy strategies, such as adoptive cell therapy and monoclonal antibodies, are currently under investigation in clinical trials, with some already demonstrating a positive impact on patient survival. In this review, we will summarize the current standards of care and discuss major new approaches in immunotherapy for MM.
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Affiliation(s)
- Ensaf M Al-Hujaily
- Department of Pediatrics, Medical College of Wisconsin, Milwaukee, WI 53226, USA.
| | - Robyn A A Oldham
- Department of Pediatrics, Medical College of Wisconsin, Milwaukee, WI 53226, USA.
- Department of Medical Biophysics, University of Toronto, Toronto, ON M5G 1L7, Canada.
| | - Parameswaran Hari
- Department of Medicine, Division of Hematology/Oncology, Medical College of Wisconsin, Milwaukee, WI 53226, USA.
| | - Jeffrey A Medin
- Department of Pediatrics, Medical College of Wisconsin, Milwaukee, WI 53226, USA.
- Department of Medical Biophysics, University of Toronto, Toronto, ON M5G 1L7, Canada.
- The Institute of Medical Sciences, University of Toronto, Toronto, ON M5S 1A8, Canada.
- Department of Biochemistry, Medical College of Wisconsin, Milwaukee, WI 53226, USA.
- Cancer Center, Medical College of Wisconsin, Milwaukee, WI 53226, USA.
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Kindt N, Journe F, Laurent G, Saussez S. Involvement of macrophage migration inhibitory factor in cancer and novel therapeutic targets. Oncol Lett 2016; 12:2247-2253. [PMID: 27698786 DOI: 10.3892/ol.2016.4929] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Accepted: 05/16/2016] [Indexed: 12/18/2022] Open
Abstract
Macrophage migration inhibitory factor (MIF) was originally identified in 1966 by Bloom and Bennett as a pro-inflammatory cytokine involved in the inhibition of macrophage motility. Since then, studies have investigated the functional contribution of this pro-inflammatory cytokine in several immune diseases, including rheumatoid arthritis and lupus erythematous. Recently, MIF has been reported to be involved in a variety of neoplastic diseases. The present review discusses previous cancer research studies that have investigated the involvement of MIF in carcinogenesis, disease prognosis, tumor cell proliferation and invasion, and tumor-induced angiogenesis. Finally, potential therapeutic approaches based on the use of MIF antagonists and neutralizing antibodies are examined. The review concludes that MIF could be a good prognostic biomarker in several types of cancer, but also that the inhibition of MIF could represent a novel therapy against cancer.
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Affiliation(s)
- Nadège Kindt
- Laboratory of Anatomy and Cellular Biology, Faculty of Medicine and Pharmacy, University of Mons, Mons 7000, Belgium
| | - Fabrice Journe
- Laboratory of Anatomy and Cellular Biology, Faculty of Medicine and Pharmacy, University of Mons, Mons 7000, Belgium; Laboratory of Oncology and Experimental Surgery, Institut Jules Bordet, Free University of Brussels, Brussels 1000, Belgium
| | - Guy Laurent
- Laboratory of Histology, Faculty of Medicine and Pharmacy, University of Mons, Mons 7000, Belgium
| | - Sven Saussez
- Laboratory of Anatomy and Cellular Biology, Faculty of Medicine and Pharmacy, University of Mons, Mons 7000, Belgium; Department of Otorhinolaryngology, Faculty of Medicine, Free University of Brussels, Brussels 1000, Belgium
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Shen S, Wang Y, Wang C, Wu YN, Xing Y. SURVIV for survival analysis of mRNA isoform variation. Nat Commun 2016; 7:11548. [PMID: 27279334 PMCID: PMC4906168 DOI: 10.1038/ncomms11548] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2015] [Accepted: 04/07/2016] [Indexed: 01/07/2023] Open
Abstract
The rapid accumulation of clinical RNA-seq data sets has provided the opportunity to associate mRNA isoform variations to clinical outcomes. Here we report a statistical method SURVIV (Survival analysis of mRNA Isoform Variation), designed for identifying mRNA isoform variation associated with patient survival time. A unique feature and major strength of SURVIV is that it models the measurement uncertainty of mRNA isoform ratio in RNA-seq data. Simulation studies suggest that SURVIV outperforms the conventional Cox regression survival analysis, especially for data sets with modest sequencing depth. We applied SURVIV to TCGA RNA-seq data of invasive ductal carcinoma as well as five additional cancer types. Alternative splicing-based survival predictors consistently outperform gene expression-based survival predictors, and the integration of clinical, gene expression and alternative splicing profiles leads to the best survival prediction. We anticipate that SURVIV will have broad utilities for analysing diverse types of mRNA isoform variation in large-scale clinical RNA-seq projects.
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Affiliation(s)
- Shihao Shen
- Department of Microbiology, Immunology and Molecular Genetics, University of California, Los Angeles, Los Angeles, California 90095, USA
| | - Yuanyuan Wang
- Department of Molecular and Medical Pharmacology, University of California, Los Angeles, Los Angeles, California 90095, USA
| | - Chengyang Wang
- Bioinformatics Interdepartmental Graduate Program, University of California, Los Angeles, Los Angeles, California 90095, USA
| | - Ying Nian Wu
- Department of Statistics, University of California, Los Angeles, Los Angeles, California 90095, USA
| | - Yi Xing
- Department of Microbiology, Immunology and Molecular Genetics, University of California, Los Angeles, Los Angeles, California 90095, USA
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Butrym A, Gebura K, Iwaszko M, Kuliczkowski K, Bogunia-Kubik K, Mazur G. Dual role of the CXCL12 polymorphism in patients with chronic lymphocytic leukemia. HLA 2016; 87:432-8. [DOI: 10.1111/tan.12810] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2015] [Revised: 03/12/2016] [Accepted: 04/12/2016] [Indexed: 01/03/2023]
Affiliation(s)
- A. Butrym
- Department of Haematology, Blood Neoplasms and Bone Marrow Transplantation; Wroclaw Medical University; Wroclaw Poland
- Department of Physiology; Wroclaw Medical University; Wroclaw Poland
| | - K. Gebura
- Laboratory of Clinical Immunogenetics and Pharmacogenetics, Hirszfeld Institute of Immunology and Experimental Therapy; Polish Academy of Sciences; Wroclaw Poland
| | - M. Iwaszko
- Laboratory of Clinical Immunogenetics and Pharmacogenetics, Hirszfeld Institute of Immunology and Experimental Therapy; Polish Academy of Sciences; Wroclaw Poland
| | - K. Kuliczkowski
- Department of Haematology, Blood Neoplasms and Bone Marrow Transplantation; Wroclaw Medical University; Wroclaw Poland
| | - K. Bogunia-Kubik
- Laboratory of Clinical Immunogenetics and Pharmacogenetics, Hirszfeld Institute of Immunology and Experimental Therapy; Polish Academy of Sciences; Wroclaw Poland
- Department of Internal, Occupational Diseases, Hypertension and Clinical Oncology; Wroclaw Medical University; Wroclaw Poland
| | - G. Mazur
- Department of Internal, Occupational Diseases, Hypertension and Clinical Oncology; Wroclaw Medical University; Wroclaw Poland
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Lu J, Jiang F, Lu A, Zhang G. Linkers Having a Crucial Role in Antibody-Drug Conjugates. Int J Mol Sci 2016; 17:561. [PMID: 27089329 PMCID: PMC4849017 DOI: 10.3390/ijms17040561] [Citation(s) in RCA: 168] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2016] [Revised: 03/29/2016] [Accepted: 04/08/2016] [Indexed: 11/16/2022] Open
Abstract
Antibody-drug conjugates (ADCs) comprised of a desirable monoclonal antibody, an active cytotoxic drug and an appropriate linker are considered to be an innovative therapeutic approach for targeted treatment of various types of tumors and cancers, enhancing the therapeutic parameter of the cytotoxic drug and reducing the possibility of systemic cytotoxicity. An appropriate linker between the antibody and the cytotoxic drug provides a specific bridge, and thus helps the antibody to selectively deliver the cytotoxic drug to tumor cells and accurately releases the cytotoxic drug at tumor sites. In addition to conjugation, the linkers maintain ADCs' stability during the preparation and storage stages of the ADCs and during the systemic circulation period. The design of linkers for ADCs is a challenge in terms of extracellular stability and intracellular release, and intracellular circumstances, such as the acid environment, the reducing environment and cathepsin, are considered as the catalysts to activate the triggers for initiating the cleavage of ADCs. This review discusses the linkers used in the clinical and marketing stages for ADCs and details the fracture modes of the linkers for the further development of ADCs.
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Affiliation(s)
- Jun Lu
- Institute for Advancing Translational Medicine in Bone & Joint Diseases, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong, China.
- Institute of Integrated Bioinfomedicine & Translational Science, Hong Kong Baptist University Shenzhen Research Institute and Continuing Education, Shenzhen 518000, China.
| | - Feng Jiang
- Institute for Advancing Translational Medicine in Bone & Joint Diseases, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong, China.
- Institute of Integrated Bioinfomedicine & Translational Science, Hong Kong Baptist University Shenzhen Research Institute and Continuing Education, Shenzhen 518000, China.
- Institute of Precision Medicine and Innovative Drug Discovery, HKBU (Haimen) Institute of Science and Technology, Haimen 226100, China.
| | - Aiping Lu
- Institute for Advancing Translational Medicine in Bone & Joint Diseases, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong, China.
- Institute of Integrated Bioinfomedicine & Translational Science, Hong Kong Baptist University Shenzhen Research Institute and Continuing Education, Shenzhen 518000, China.
| | - Ge Zhang
- Institute for Advancing Translational Medicine in Bone & Joint Diseases, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong, China.
- Institute of Integrated Bioinfomedicine & Translational Science, Hong Kong Baptist University Shenzhen Research Institute and Continuing Education, Shenzhen 518000, China.
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Robak T, Blonski JZ, Robak P. Antibody therapy alone and in combination with targeted drugs in chronic lymphocytic leukemia. Semin Oncol 2016; 43:280-90. [DOI: 10.1053/j.seminoncol.2016.02.010] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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69
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Schröder B. The multifaceted roles of the invariant chain CD74--More than just a chaperone. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2016; 1863:1269-81. [PMID: 27033518 DOI: 10.1016/j.bbamcr.2016.03.026] [Citation(s) in RCA: 140] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Revised: 03/22/2016] [Accepted: 03/23/2016] [Indexed: 01/13/2023]
Abstract
The invariant chain (CD74) is well known for its essential role in antigen presentation by mediating assembly and subcellular trafficking of the MHCII complex. Beyond this, CD74 has also been implicated in a number of processes independent of MHCII. These include the regulation of endosomal trafficking, cell migration and cellular signalling as surface receptor of the pro-inflammatory cytokine macrophage migration inhibitory factor (MIF). In several forms of cancer, CD74 is up-regulated and associated with enhanced proliferation and metastatic potential. In this review, an overview of the diverse biological functions of the CD74 protein is provided with a particular focus on how these may be regulated. In particular, proteolysis of CD74 will be discussed as a central mechanism to control the actions of this important protein at different levels.
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Affiliation(s)
- Bernd Schröder
- Biochemical Institute, Christian Albrechts University of Kiel, Otto-Hahn-Platz 9, D-24118 Kiel, Germany.
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71
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Thanendrarajan S, Davies FE, Morgan GJ, Schinke C, Mathur P, Heuck CJ, Zangari M, Epstein J, Yaccoby S, Weinhold N, Barlogie B, van Rhee F. Monoclonal antibody therapy in multiple myeloma: where do we stand and where are we going? Immunotherapy 2016; 8:367-84. [PMID: 26888183 DOI: 10.2217/imt.15.118] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Multiple myeloma is a plasma cell malignancy that is characterized by refractory and relapsing course of disease. Despite the introduction of high-dose chemotherapy in combination with autologous stem cell transplantation and innovative agents such as proteasome inhibitors and immunomodulatory drugs, achieving cure in multiple myeloma is a challenging endeavor. In the last couple of years, enormous advances were made in implementing monoclonal antibody therapy in multiple myeloma. A large number of preclinical and clinical studies have been introduced successfully, demonstrating a safe and efficient administration of monoclonal antibodies in multiple myeloma. In particular, the application of monoclonal antibodies in combination with immunomodulatory drugs, proteasome inhibitors, corticosteroids or conventional chemotherapy seem to be promising and will expand the treatment arsenal for patients with multiple myeloma.
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Affiliation(s)
- Sharmilan Thanendrarajan
- Myeloma Institute, University of Arkansas for Medical Sciences, 4301 West Markham, Little Rock, AR 72205, USA
| | - Faith E Davies
- Myeloma Institute, University of Arkansas for Medical Sciences, 4301 West Markham, Little Rock, AR 72205, USA
| | - Gareth J Morgan
- Myeloma Institute, University of Arkansas for Medical Sciences, 4301 West Markham, Little Rock, AR 72205, USA
| | - Carolina Schinke
- Myeloma Institute, University of Arkansas for Medical Sciences, 4301 West Markham, Little Rock, AR 72205, USA
| | - Pankaj Mathur
- Myeloma Institute, University of Arkansas for Medical Sciences, 4301 West Markham, Little Rock, AR 72205, USA
| | - Christoph J Heuck
- Myeloma Institute, University of Arkansas for Medical Sciences, 4301 West Markham, Little Rock, AR 72205, USA
| | - Maurizio Zangari
- Myeloma Institute, University of Arkansas for Medical Sciences, 4301 West Markham, Little Rock, AR 72205, USA
| | - Joshua Epstein
- Myeloma Institute, University of Arkansas for Medical Sciences, 4301 West Markham, Little Rock, AR 72205, USA
| | - Shmuel Yaccoby
- Myeloma Institute, University of Arkansas for Medical Sciences, 4301 West Markham, Little Rock, AR 72205, USA
| | - Niels Weinhold
- Myeloma Institute, University of Arkansas for Medical Sciences, 4301 West Markham, Little Rock, AR 72205, USA
| | - Bart Barlogie
- Tisch Cancer Institute, Mount Sinai Hospital, 1470 Madison Avenue, New York, NY 10029, USA
| | - Frits van Rhee
- Myeloma Institute, University of Arkansas for Medical Sciences, 4301 West Markham, Little Rock, AR 72205, USA
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Atanackovic D, Radhakrishnan SV, Bhardwaj N, Luetkens T. Chimeric Antigen Receptor (CAR) therapy for multiple myeloma. Br J Haematol 2016; 172:685-98. [DOI: 10.1111/bjh.13889] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Djordje Atanackovic
- Multiple Myeloma Program, Hematology and Hematologic Malignancies; University of Utah/Huntsman Cancer Institute; Salt Lake City UT USA
| | - Sabarinath V. Radhakrishnan
- Multiple Myeloma Program, Hematology and Hematologic Malignancies; University of Utah/Huntsman Cancer Institute; Salt Lake City UT USA
| | - Neelam Bhardwaj
- Multiple Myeloma Program, Hematology and Hematologic Malignancies; University of Utah/Huntsman Cancer Institute; Salt Lake City UT USA
| | - Tim Luetkens
- Multiple Myeloma Program, Hematology and Hematologic Malignancies; University of Utah/Huntsman Cancer Institute; Salt Lake City UT USA
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ASK1/JNK-mediated TAp63 activation controls the cell survival signal of baicalein-treated EBV-transformed B cells. Mol Cell Biochem 2015; 412:247-58. [DOI: 10.1007/s11010-015-2631-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2015] [Accepted: 12/15/2015] [Indexed: 10/22/2022]
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74
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David L, Gokhale A, Jois S, Johnson A, Behrens M, Luthra H, Taneja V. CD74/DQA1 dimers predispose to the development of arthritis in humanized mice. Immunology 2015; 147:204-11. [PMID: 26524976 DOI: 10.1111/imm.12551] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2015] [Revised: 10/12/2015] [Accepted: 10/23/2015] [Indexed: 12/21/2022] Open
Abstract
Rheumatoid arthritis (RA) is associated with the presence of certain HLA class II genes. However, why some individuals carrying RA non-associated alleles develop arthritis is still unexplained. The trans-heterodimer between two RA non-associated HLA genes can render susceptibility to develop arthritis in humanized mice, DQA1*0103/DQB1*0604, suggesting a role for DQ α chains in pathogenesis. In this study we determined the role of DQA1 in arthritis by using mice expressing DQA1*0103 and lacking endogenous class II molecules. Proximity ligation assay showed that DQA1*0103 is expressed on the cell surface as a dimer with CD74. Upon immunization with type II collagen, DQA1*0103 mice generated an antigen-specific cellular and humoral response and developed severe arthritis. Structural modelling suggests that DQA1*0103/CD74 form a pocket with similarity to the antigen binding pocket. DQA1*0103 mice present type II collagen-derived peptides that are not presented by an arthritis-resistant DQA1*0103/DQB1*0601 allele, suggesting that the DQA1*0103/CD74 dimer may result in presentation of unique antigens and susceptibility to develop arthritis. The present data provide a possible explanation by which the DQA1 molecule contributes to susceptibility to develop arthritis.
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Affiliation(s)
- Luckey David
- Department of Immunology, Mayo Clinic, Rochester, MN, USA
| | - Ameya Gokhale
- Department of Basic Pharmaceutical Sciences, School of Pharmacy, University of Louisiana at Monroe, Monroe, LA, USA
| | - Seetharama Jois
- Department of Basic Pharmaceutical Sciences, School of Pharmacy, University of Louisiana at Monroe, Monroe, LA, USA
| | - Aaron Johnson
- Department of Immunology, Mayo Clinic, Rochester, MN, USA
| | | | - Harvinder Luthra
- Division of Rheumatology, Department of Medicine, Mayo Clinic, Rochester, MN, USA
| | - Veena Taneja
- Department of Immunology, Mayo Clinic, Rochester, MN, USA.,Division of Rheumatology, Department of Medicine, Mayo Clinic, Rochester, MN, USA
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Bowser JL, Blackburn MR, Shipley GL, Molina JG, Dunner K, Broaddus RR. Loss of CD73-mediated actin polymerization promotes endometrial tumor progression. J Clin Invest 2015; 126:220-38. [PMID: 26642367 DOI: 10.1172/jci79380] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2014] [Accepted: 11/03/2015] [Indexed: 12/20/2022] Open
Abstract
Ecto-5'-nucleotidase (CD73) is central to the generation of extracellular adenosine. Previous studies have highlighted a detrimental role for extracellular adenosine in cancer, as it dampens T cell-mediated immune responses. Here, we determined that, in contrast to other cancers, CD73 is markedly downregulated in poorly differentiated and advanced-stage endometrial carcinoma compared with levels in normal endometrium and low-grade tumors. In murine models, CD73 deficiency led to a loss of endometrial epithelial barrier function, and pharmacological CD73 inhibition increased in vitro migration and invasion of endometrial carcinoma cells. Given that CD73-generated adenosine is central to regulating tissue protection and physiology in normal tissues, we hypothesized that CD73-generated adenosine in endometrial carcinoma induces an innate reflex to protect epithelial integrity. CD73 associated with cell-cell contacts, filopodia, and membrane zippers, indicative of involvement in cell-cell adhesion and actin polymerization-dependent processes. We determined that CD73-generated adenosine induces cortical actin polymerization via adenosine A1 receptor (A1R) induction of a Rho GTPase CDC42-dependent conformational change of the actin-related proteins 2 and 3 (ARP2/3) actin polymerization complex member N-WASP. Cortical F-actin elevation increased membrane E-cadherin, β-catenin, and Na(+)K(+) ATPase. Together, these findings reveal that CD73-generated adenosine promotes epithelial integrity and suggest why loss of CD73 in endometrial cancer allows for tumor progression. Moreover, our data indicate that the role of CD73 in cancer is more complex than previously described.
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76
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Ayed AO, Chang LJ, Moreb JS. Immunotherapy for multiple myeloma: Current status and future directions. Crit Rev Oncol Hematol 2015; 96:399-412. [DOI: 10.1016/j.critrevonc.2015.06.006] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2014] [Revised: 04/26/2015] [Accepted: 06/15/2015] [Indexed: 01/01/2023] Open
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Monoclonal antibodies in the treatment of multiple myeloma: current status and future perspectives. Leukemia 2015; 30:526-35. [PMID: 26265184 PMCID: PMC4777772 DOI: 10.1038/leu.2015.223] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Revised: 07/21/2015] [Accepted: 07/22/2015] [Indexed: 02/06/2023]
Abstract
The treatment landscape for patients with multiple myeloma (MM) is constantly evolving. Over the past decade, the introduction of novel agents such as proteasome inhibitors and immunomodulatory drugs has led to notable changes in therapeutic strategy, and improvements in survival, yet MM remains incurable in the vast majority of cases. More recently, a targeted approach to MM treatment has emerged, using monoclonal antibodies (mAbs) to target antigens expressed on the surface of MM cells. MAbs tested to date kill MM cells via the host's immune system and/or by promoting apoptosis, and appear to have generally improved tolerability compared with currently available treatments. Due to their distinct mode of action, mAbs are promising both for patients who have exhausted current regimens, and as part of first-line treatments in newly diagnosed patients. This review examines the recent developments in mAb-based therapy for MM, primarily focused on those agents in ongoing clinical testing.
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78
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Robak P, Smolewski P, Robak T. Emerging immunological drugs for chronic lymphocytic leukemia. Expert Opin Emerg Drugs 2015; 20:423-47. [PMID: 26153226 DOI: 10.1517/14728214.2015.1046432] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
INTRODUCTION Over the last few years, several new immunological drugs, particularly monoclonal antibodies (mAbs), immunomodulatory drugs and B-cell receptor (BCR) pathway inhibitors have been developed and investigated in chronic lymphocytic leukemia (CLL). This article summarizes recent discoveries regarding their mechanism of action, pharmacological properties, clinical activity and toxicity, as well as the emerging role of these agents in CLL. AREAS COVERED A literature review of mAbs, BCR pathway inhibitors and immunomodulating drugs was conducted of the MEDLINE database via PubMed for articles in English. Publications from 2000 through February 2015 were scrutinized. The search terms used were alemtuzumab, BI 836826, duvelisib ibrutinib, idelalisib, lenalidomide, monoclonal antibodies, MEDI-551, MOR208, obinutuzumab, ocaratuzumab, ofatumumab, ONO-4059, otlertuzumab, spebrutinib, veltuzumab and XmAb5574 in conjunction with CLL. Conference proceedings from the previous 5 years of the American Society of Hematology, European Hematology Association, American Society of Clinical Oncology, and ACR/ARHP Annual Scientific Meetings were searched manually. Additional relevant publications were obtained by reviewing the references from the chosen articles. EXPERT OPINION The use of mAbs, BCR inhibitors and immunomodulating drugs is a promising new strategy for chemotherapy-free treatment of CLL. However, definitive data from ongoing and future clinical trials will aid in better defining the status of immunological drugs in the treatment of this disease.
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Affiliation(s)
- Pawel Robak
- a Medical University of Lodz, Departments of Experimental Hematology and Hematology, Copernicus Memorial Hospital , 93-510 Lodz, Ul. Ciolkowskiego 2, Poland +48 42 689 51 91 ; +48 42 689 51 92 ;
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79
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Martin P, Furman RR, Rutherford S, Ruan J, Ely S, Greenberg J, Coleman M, Goldsmith SJ, Leonard JP. Phase I study of the anti-CD74 monoclonal antibody milatuzumab (hLL1) in patients with previously treated B-cell lymphomas. Leuk Lymphoma 2015; 56:3065-70. [PMID: 25754579 DOI: 10.3109/10428194.2015.1028052] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Milatuzumab (hLL1), a humanized anti-CD74 monoclonal antibody, has activity in preclinical non-Hodgkin lymphoma (NHL) models. We conducted a phase 1 trial in previously treated B-cell malignancies. Dose escalation included four planned dose levels (1.5, 4, 6 and 8 mg/kg) with milatuzumab given twice weekly for 6 weeks. After dose level 1, the schedule was changed to daily (Monday-Friday) for 10 days. Twenty-two patients were treated. The most common possibly related toxicities were infusion reaction, anemia, lymphopenia, neutropenia and thrombocytopenia. Three patients experienced dose-limiting toxicity (neutropenia, neutropenia, rash) at dose levels 1, 2 and 4, respectively. Eight patients had stable disease, with no objective responses. The serum half-life of milatuzumab was ∼2 h. In seven patients, In-111 imaging showed no clear evidence of tumor targeting. The short half-life may reflect CD74 rapid internalization and presence on extratumoral tissues; this antigen sink must be overcome to capitalize on the promising preclinical activity of the drug.
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Affiliation(s)
- Peter Martin
- a Department of Medicine , Weill Cornell Medical College , New York , NY , USA
| | - Richard R Furman
- a Department of Medicine , Weill Cornell Medical College , New York , NY , USA
| | - Sarah Rutherford
- a Department of Medicine , Weill Cornell Medical College , New York , NY , USA
| | - Jia Ruan
- a Department of Medicine , Weill Cornell Medical College , New York , NY , USA
| | - Scott Ely
- b Pathology and Laboratory Medicine, Weill Cornell Medical College , New York , NY , USA
| | - June Greenberg
- a Department of Medicine , Weill Cornell Medical College , New York , NY , USA
| | - Morton Coleman
- a Department of Medicine , Weill Cornell Medical College , New York , NY , USA
| | - Stanley J Goldsmith
- c Department of Radiology , Weill Cornell Medical College , New York , NY , USA
| | - John P Leonard
- a Department of Medicine , Weill Cornell Medical College , New York , NY , USA
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Sauler M, Bucala R, Lee PJ. Role of macrophage migration inhibitory factor in age-related lung disease. Am J Physiol Lung Cell Mol Physiol 2015; 309:L1-10. [PMID: 25957294 DOI: 10.1152/ajplung.00339.2014] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2014] [Accepted: 05/05/2015] [Indexed: 12/25/2022] Open
Abstract
The prevalence of many common respiratory disorders, including pneumonia, chronic obstructive lung disease, pulmonary fibrosis, and lung cancer, increases with age. Little is known of the host factors that may predispose individuals to such diseases. Macrophage migration inhibitory factor (MIF) is a potent upstream regulator of the immune system. MIF is encoded by variant alleles that occur commonly in the population. In addition to its role as a proinflammatory cytokine, a growing body of literature demonstrates that MIF influences diverse molecular processes important for the maintenance of cellular homeostasis and may influence the incidence or clinical manifestations of a variety of chronic lung diseases. This review highlights the biological properties of MIF and its implication in age-related lung disease.
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Affiliation(s)
- Maor Sauler
- Section of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, Yale University School of Medicine, New Haven, Connecticut; and
| | - Richard Bucala
- Section of Rheumatology, Department of Medicine, Yale University School of Medicine, New Haven, Connecticut
| | - Patty J Lee
- Section of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, Yale University School of Medicine, New Haven, Connecticut; and
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Mentrup T, Häsler R, Fluhrer R, Saftig P, Schröder B. A Cell-Based Assay Reveals Nuclear Translocation of Intracellular Domains Released by SPPL Proteases. Traffic 2015; 16:871-92. [DOI: 10.1111/tra.12287] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2014] [Revised: 03/26/2015] [Accepted: 03/26/2015] [Indexed: 12/27/2022]
Affiliation(s)
- Torben Mentrup
- Biochemical Institute; Christian Albrechts University of Kiel; Otto-Hahn-Platz 9 D-24118 Kiel Germany
| | - Robert Häsler
- Institute of Clinical Molecular Biology; Christian Albrechts University of Kiel; Schittenhelmstr. 12 D-24105 Kiel Germany
| | - Regina Fluhrer
- Biomedizinisches Centrum (BMC); Ludwig Maximilians University of Munich; Feodor-Lynen-Strasse 17 D-81377 Munich Germany
- DZNE - German Center for Neurodegenerative Diseases; Feodor-Lynen-Strasse 17 D-81377 Munich Germany
| | - Paul Saftig
- Biochemical Institute; Christian Albrechts University of Kiel; Otto-Hahn-Platz 9 D-24118 Kiel Germany
| | - Bernd Schröder
- Biochemical Institute; Christian Albrechts University of Kiel; Otto-Hahn-Platz 9 D-24118 Kiel Germany
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82
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Zhang M, He J, Liu Z, Lu Y, Zheng Y, Li H, Xu J, Liu H, Qian J, Orlowski RZ, Kwak LW, Yi Q, Yang J. Anti-β₂-microglobulin monoclonal antibodies overcome bortezomib resistance in multiple myeloma by inhibiting autophagy. Oncotarget 2015; 6:8567-78. [PMID: 25895124 PMCID: PMC4496167 DOI: 10.18632/oncotarget.3251] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2014] [Accepted: 01/29/2015] [Indexed: 01/19/2023] Open
Abstract
Our previous studies showed that anti-β2M monoclonal antibodies (mAbs) have strong and direct apoptotic effects on multiple myeloma (MM) cells, suggesting that anti-β2M mAbs might be developed as a novel therapeutic agent. In this study, we investigated the anti-MM effects of combination treatment with anti-β2M mAbs and bortezomib (BTZ). Our results showed that anti-β2M mAbs enhanced BTZ-induced apoptosis of MM cell lines and primary MM cells. Combination treatment could also induce apoptosis of BTZ-resistant MM cells, and the enhanced effect depended on the surface expression of β2M on MM cells. BTZ up-regulated the expression of autophagy proteins, whereas combination with anti-β2M mAbs inhibited autophagy. Sequence analysis of the promoter region of beclin 1 identified 3 putative NF-κB-binding sites from -615 to -789 bp. BTZ treatment increased, whereas combination with anti-β2M mAbs reduced, NF-κB transcription activities in MM cells, and combination treatment inhibited NF-κB p65 binding to the beclin 1 promoter. Furthermore, anti-β2M mAbs and BTZ combination treatment had anti-MM activities in an established MM mouse model. Thus, our studies provide new insight and support for the clinical development of an anti-β2M mAb and BTZ combination treatment to overcome BTZ drug resistance and improve MM patient survival.
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MESH Headings
- Active Transport, Cell Nucleus/drug effects
- Animals
- Antibodies, Monoclonal/immunology
- Antibodies, Monoclonal/pharmacology
- Apoptosis/drug effects
- Apoptosis Regulatory Proteins/biosynthesis
- Apoptosis Regulatory Proteins/genetics
- Autophagy/drug effects
- Beclin-1
- Bortezomib/pharmacology
- Drug Resistance, Neoplasm/drug effects
- Drug Resistance, Neoplasm/physiology
- Drug Screening Assays, Antitumor
- Drug Synergism
- Humans
- Lysosomal Membrane Proteins/biosynthesis
- Lysosomal Membrane Proteins/genetics
- Male
- Membrane Proteins/biosynthesis
- Membrane Proteins/genetics
- Mice
- Mice, SCID
- Microtubule-Associated Proteins/biosynthesis
- Microtubule-Associated Proteins/genetics
- Neoplasm Proteins/antagonists & inhibitors
- Neoplasm Proteins/biosynthesis
- Neoplasm Proteins/genetics
- Neoplasm Proteins/immunology
- RNA, Bacterial
- RNA, Small Interfering/genetics
- Signal Transduction/drug effects
- Transcription Factor RelA/antagonists & inhibitors
- Tumor Cells, Cultured
- Xenograft Model Antitumor Assays
- beta 2-Microglobulin/antagonists & inhibitors
- beta 2-Microglobulin/biosynthesis
- beta 2-Microglobulin/genetics
- beta 2-Microglobulin/immunology
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Affiliation(s)
- Mingjun Zhang
- Department of Lymphoma/Myeloma, Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
- Department of Cancer Biology, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Jin He
- Department of Lymphoma/Myeloma, Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Zhiqiang Liu
- Department of Lymphoma/Myeloma, Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Yong Lu
- Department of Lymphoma/Myeloma, Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
- Department of Cancer Biology, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Yuhuan Zheng
- Department of Lymphoma/Myeloma, Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
- Department of Cancer Biology, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Haiyan Li
- Department of Lymphoma/Myeloma, Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
- Department of Cancer Biology, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Jingda Xu
- Department of Lymphoma/Myeloma, Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Huan Liu
- Department of Lymphoma/Myeloma, Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Jianfei Qian
- Department of Lymphoma/Myeloma, Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
- Department of Cancer Biology, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Robert Z. Orlowski
- Department of Lymphoma/Myeloma, Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Larry W. Kwak
- Department of Lymphoma/Myeloma, Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Qing Yi
- Department of Lymphoma/Myeloma, Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
- Department of Cancer Biology, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Jing Yang
- Department of Lymphoma/Myeloma, Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
- Cancer Research Institute and Cancer Hospital, Guangzhou Medical University, Guangzhou, China
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83
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Christian BA, Poi M, Jones JA, Porcu P, Maddocks K, Flynn JM, Benson DM, Phelps MA, Wei L, Byrd JC, Wegener WA, Goldenberg DM, Baiocchi RA, Blum KA. The combination of milatuzumab, a humanized anti-CD74 antibody, and veltuzumab, a humanized anti-CD20 antibody, demonstrates activity in patients with relapsed and refractory B-cell non-Hodgkin lymphoma. Br J Haematol 2015; 169:701-10. [PMID: 25847298 DOI: 10.1111/bjh.13354] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2014] [Accepted: 01/01/2015] [Indexed: 12/12/2022]
Abstract
As a result of the anti-tumour activity observed in vitro and in vivo with combined anti-CD20 and anti-CD74 antibodies, we initiated a phase I/II trial of veltuzumab and milatuzumab in patients with relapsed or refractory B-cell non-Hodgkin lymphoma (NHL). Patients received an induction of veltuzumab 200 mg/m(2) weekly combined with escalating doses of milatuzumab at 8, 16 and 20 mg/kg weekly for 4 weeks. Patients without disease progression could receive an extended induction with treatment on weeks 12, 20, 28 and 36. A total of 35 patients enrolled on the study. Median age was 63 years, median number of prior therapies was 3, and 63% of patients were rituximab refractory. No dose-limiting toxicities were observed in the phase I study. Related grade 3-4 toxicities included lymphopenia, leucopenia, neutropenia, anaemia, infusion reactions, hyperglycaemia, fatigue and atrial tachycardia. Median weeks of therapy was 12 and 29% of patients completed all 36 weeks of therapy. The overall response rate was 24%, median duration of response was 12 months, and responses were observed at all dose levels and in 50% of patients refractory to rituximab. Combination therapy with veltuzumab and milatuzumab demonstrated activity in a population of heavily pre-treated patients with relapsed or refractory indolent NHL.
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Affiliation(s)
- Beth A Christian
- Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA
| | - Ming Poi
- Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA.,College of Pharmacy, The Ohio State University, Columbus, OH, USA
| | - Jeffrey A Jones
- Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA
| | - Pierluigi Porcu
- Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA
| | - Kami Maddocks
- Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA
| | - Joseph M Flynn
- Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA
| | - Don M Benson
- Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA
| | - Mitch A Phelps
- Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA.,College of Pharmacy, The Ohio State University, Columbus, OH, USA
| | - Lai Wei
- Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA
| | - John C Byrd
- Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA
| | | | - David M Goldenberg
- Clinical Research, Immunomedics, Inc., Morris Plains, NJ, USA.,Center for Molecular Medicine and Immunology, Garden State Cancer Center, Morris Plains, NJ, USA
| | - Robert A Baiocchi
- Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA
| | - Kristie A Blum
- Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA
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84
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Sarkozy C, Salles G, Bachy E. Chemotherapy-free treatment in patients with follicular lymphoma. Expert Rev Hematol 2015; 8:187-203. [PMID: 25585961 DOI: 10.1586/17474086.2015.998995] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The outcome of patients with follicular lymphoma (FL) has improved over the last two decades through the introduction of anti-CD20 monoclonal antibodies, usually used in combination with chemotherapy. However, patients with FL still experience multiple relapses, requiring several lines of treatment. Early toxicity of chemotherapy is a significant concern and as the life expectancy of patients with FL is increasing, late toxicities become an increasingly important concern. Progress made in understanding the biology of FL, especially dysregulation of intracellular pathways and immunological antitumor responses, recently allowed for the development of innovative chemo-free therapeutic approaches. In this report, different options such as new anti-CD20 antibodies, antibodies targeting other cell surface antigens, bi-specific antibodies, immunomodulation, idiotype vaccine and other targeted therapies are presented. The article also highlights how, although promising in early phase studies, the cost-effectiveness of new agents will have to be justified in Phase III trials. Furthermore, chemo-free regimen might not mean toxicity-free treatment and monitoring of early and late toxicities is required.
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Affiliation(s)
- Clémentine Sarkozy
- Hospices Civils de Lyon, Service d'Hématologie, 69495 Pierre Bénite cedex, France
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85
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Liu YH, Lin JY. Recent advances of cluster of differentiation 74 in cancer. World J Immunol 2014; 4:174-184. [DOI: 10.5411/wji.v4.i3.174] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2014] [Revised: 06/03/2014] [Accepted: 07/29/2014] [Indexed: 02/05/2023] Open
Abstract
Cluster of differentiation 74 (CD74) performs multiple roles in B cells, T cells, and antigen-presenting cells within the immune system; it also participates in major histocompatibility complex class II-restricted antigen presentation and inflammation. Recently, a role for CD74 in carcinogenesis has been described. CD74 promotes cell proliferation and motility and prevents cell death in a macrophage migration inhibitory factor-dependent manner. Its roles as an accessory signal receptor on the cell surface and the ability to interact with other signaling molecules make CD74 an attractive therapeutic target for the treatment of cancer. This review focuses on the original role of CD74 in the immune system and its emerging tumor-related functions. First, the structure of CD74 will be summarized. Second, the current understandings about the expression, cellular localization, molecular mechanisms and signaling pathways of CD74 in immunity and cancer will be reviewed. Third, the examples that suggest CD74 is a promising molecular therapeutic target are reviewed and discussed. Although the safety and efficacy of CD74-targeted strategies are under development, deeply understanding of the regulation of CD74 will hold promise for the use of CD74 as a therapeutic target and may develop the CD74-targeted therapeutic agents such as neutralized antibody and compounds.
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86
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Podhorecka M, Markowicz J, Szymczyk A, Pawlowski J. Target Therapy in Hematological Malignances: New Monoclonal Antibodies. INTERNATIONAL SCHOLARLY RESEARCH NOTICES 2014; 2014:701493. [PMID: 27433507 PMCID: PMC4897146 DOI: 10.1155/2014/701493] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 04/10/2014] [Revised: 09/22/2014] [Accepted: 09/23/2014] [Indexed: 11/17/2022]
Abstract
Apart from radio- and chemotherapy, monoclonal antibodies (MoAbs) represent a new, more selective tool in the treatment of hematological malignancies. MoAbs bind with the specific antigens of the tumors. This interaction is a basis for targeted therapies which exhibit few side effects and significant antitumor activity. This review provides an overview of the functional characteristics of MoAbs, with some examples of their clinical application. The promising results in the treatment of hematological malignancies have led to the more frequent usage of MoAbs in the therapy. Development of MoAbs is a subject of extensive research. They are a promising method of cancer treatment in the future.
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Affiliation(s)
- Monika Podhorecka
- Department of Hematooncology and Bone Marrow Transplantation, Medical University of Lublin, Staszica 11, 20-081 Lublin, Poland
| | - Justyna Markowicz
- Students Scientific Association at the Department of Hematooncology and Bone Marrow Transplantation, Medical University of Lublin, Lublin, Poland
| | - Agnieszka Szymczyk
- Department of Hematooncology and Bone Marrow Transplantation, Medical University of Lublin, Staszica 11, 20-081 Lublin, Poland
| | - Johannes Pawlowski
- Students Scientific Association at the Department of Hematooncology and Bone Marrow Transplantation, Medical University of Lublin, Lublin, Poland
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87
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Berkova Z, Wang S, Ao X, Wise JF, Braun FK, Rezaeian AH, Sehgal L, Goldenberg DM, Samaniego F. CD74 interferes with the expression of fas receptor on the surface of lymphoma cells. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2014; 33:80. [PMID: 25304249 PMCID: PMC4210479 DOI: 10.1186/s13046-014-0080-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2014] [Accepted: 09/22/2014] [Indexed: 01/21/2023]
Abstract
BACKGROUND Resistance to Fas-mediated apoptosis limits the efficacy of currently available chemotherapy regimens. We identified CD74, which is known to be overexpressed in hematological malignancies, as one of the factors interfering with Fas-mediated apoptosis. METHODS CD74 expression was suppressed in human B-lymphoma cell lines, BJAB and Raji, by either transduction with lentivirus particles or transfection with episomal vector, both encoding CD74-specific shRNAs or non-target shRNA. Effect of CD74 expression on Fas signaling was evaluated by comparing survival of mice hydrodynamically transfected with vector encoding full-length CD74 or empty vector. Sensitivity of cells with suppressed CD74 expression to FasL, edelfosine, doxorubicin, and a humanized CD74-specific antibody, milatuzumab, was evaluated by flow cytometry and compared to control cells. Fas signaling in response to FasL stimulation and the expression of Fas signaling components were evaluated by Western blot. Surface expression of Fas was detected by flow cytometry. RESULTS We determined that cells with suppressed CD74 are more sensitive to FasL-induced apoptosis and Fas signaling-dependent chemotherapies, edelfosine and doxorubicin, than control CD74-expressing cells. On the other hand, expression of full-length CD74 in livers protected the mice from a lethal challenge with agonistic anti-Fas antibody Jo2. A detailed analysis of Fas signaling in cells lacking CD74 and control cells revealed increased cleavage/activation of pro-caspase-8 and corresponding enhancement of caspase-3 activation in the absence of CD74, suggesting that CD74 affects the immediate early steps in Fas signaling at the plasma membrane. Cells with suppressed CD74 expression showed increased staining of Fas receptor on their surface. Pre-treatment with milatuzumab sensitized BJAB cells to Fas-mediated apoptosis. CONCLUSION We anticipate that specific targeting of the CD74 on the cell surface will sensitize CD74-expressing cancer cells to Fas-mediated apoptosis, and thus will increase effectiveness of chemotherapy regimens for hematological malignancies.
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Affiliation(s)
- Zuzana Berkova
- Department of Lymphoma and Myeloma, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd., Houston, TX, 77030, USA.
| | - Shu Wang
- Department of Lymphoma and Myeloma, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd., Houston, TX, 77030, USA.
| | - Xue Ao
- Department of Lymphoma and Myeloma, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd., Houston, TX, 77030, USA.
| | - Jillian F Wise
- Department of Lymphoma and Myeloma, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd., Houston, TX, 77030, USA.
| | - Frank K Braun
- Department of Lymphoma and Myeloma, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd., Houston, TX, 77030, USA.
| | - Abdol H Rezaeian
- Department of Lymphoma and Myeloma, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd., Houston, TX, 77030, USA.
| | - Lalit Sehgal
- Department of Lymphoma and Myeloma, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd., Houston, TX, 77030, USA.
| | - David M Goldenberg
- Immunomedics, Inc., Morris Plains, NJ, 07950, USA. .,Center for Molecular Medicine and Immunology, Garden State Cancer Center, Morris Plains, NJ, 07950, USA.
| | - Felipe Samaniego
- Department of Lymphoma and Myeloma, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd., Houston, TX, 77030, USA.
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88
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Knapp CM, Whitehead KA. In pursuit of a moving target: nanotherapeutics for the treatment of non-Hodgkin B-cell lymphoma. Expert Opin Drug Deliv 2014; 11:1923-37. [DOI: 10.1517/17425247.2014.945419] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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89
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Genève L, Gauthier C, Thibodeau J. The D-6 mouse monoclonal antibody recognizes the CD74 cytoplasmic tail. Monoclon Antib Immunodiagn Immunother 2014; 33:221-7. [PMID: 25171001 DOI: 10.1089/mab.2013.0078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The invariant chain (Ii; CD74) is a multifunctional protein of the immune system and a major player in the presentation of exogenous antigens to T cells. In the endoplasmic reticulum (ER), Ii assists the folding and trafficking of MHC class II molecules. In the present study, we characterized the recently commercialized D-6 monoclonal antibody (MAb) made against a polypeptide spanning the entire sequence of the p33 isoform of human Ii. Using transgenic mice expressing the human p35 isoform, we showed by flow cytometry that D-6 only slightly cross-reacts with mouse Ii in permeabilized splenocytes. Analysis of the human B lymphoblastoid cell line LG2 revealed that D-6 recognizes Ii only upon membrane permeabilization. Variants of Ii bearing specific mutations or deletions were transfected in human cells to map the D-6 epitope. Our results showed that this MAb binds to the N-terminal cytoplasmic domain of Ii and that the epitope was destroyed upon mutagenesis of the two leucine-based endosomal targeting motifs. Thus, D-6 cannot be used for rapid flow cytometric assessment of CD74 cell surface expression and would be ineffective as a drug conjugate for the treatment of hematological malignancies.
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Affiliation(s)
- Laetitia Genève
- Laboratoire d'Immunologie Moléculaire, Département de Microbiologie, Infectiologie et Immunologie, Faculté de Médecine, Université de Montréal , Montréal, Canada
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90
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Rabinovitch M, Guignabert C, Humbert M, Nicolls MR. Inflammation and immunity in the pathogenesis of pulmonary arterial hypertension. Circ Res 2014; 115:165-75. [PMID: 24951765 DOI: 10.1161/circresaha.113.301141] [Citation(s) in RCA: 681] [Impact Index Per Article: 68.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
This review summarizes an expanding body of knowledge indicating that failure to resolve inflammation and altered immune processes underlie the development of pulmonary arterial hypertension. The chemokines and cytokines implicated in pulmonary arterial hypertension that could form a biomarker platform are discussed. Pre-clinical studies that provide the basis for dysregulated immunity in animal models of the disease are reviewed. In addition, we present therapies that target inflammatory/immune mechanisms that are currently enrolling patients, and discuss others in development. We show how genetic and metabolic abnormalities are inextricably linked to dysregulated immunity and adverse remodeling in the pulmonary arteries.
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Affiliation(s)
- Marlene Rabinovitch
- From the Cardiovascular Institute and Department of Pediatrics (M.R.) and Department of Medicine (M.R.N.), Stanford University School of Medicine, CA; INSERM UMR_S 999, LabEx LERMIT, Centre Chirurgical Marie Lannelongue, Le Plessis-Robinson and Université Paris-Sud, School of Medicine, Le Kremlin-Bicêtre (C.G., M.H.); and AP-HP, Service de Pneumologie, Centre de Référence de l'Hypertension Pulmonaire Sévère, DHU Thorax Innovation, Hôpital de Bicêtre, France (M.H.).
| | - Christophe Guignabert
- From the Cardiovascular Institute and Department of Pediatrics (M.R.) and Department of Medicine (M.R.N.), Stanford University School of Medicine, CA; INSERM UMR_S 999, LabEx LERMIT, Centre Chirurgical Marie Lannelongue, Le Plessis-Robinson and Université Paris-Sud, School of Medicine, Le Kremlin-Bicêtre (C.G., M.H.); and AP-HP, Service de Pneumologie, Centre de Référence de l'Hypertension Pulmonaire Sévère, DHU Thorax Innovation, Hôpital de Bicêtre, France (M.H.)
| | - Marc Humbert
- From the Cardiovascular Institute and Department of Pediatrics (M.R.) and Department of Medicine (M.R.N.), Stanford University School of Medicine, CA; INSERM UMR_S 999, LabEx LERMIT, Centre Chirurgical Marie Lannelongue, Le Plessis-Robinson and Université Paris-Sud, School of Medicine, Le Kremlin-Bicêtre (C.G., M.H.); and AP-HP, Service de Pneumologie, Centre de Référence de l'Hypertension Pulmonaire Sévère, DHU Thorax Innovation, Hôpital de Bicêtre, France (M.H.)
| | - Mark R Nicolls
- From the Cardiovascular Institute and Department of Pediatrics (M.R.) and Department of Medicine (M.R.N.), Stanford University School of Medicine, CA; INSERM UMR_S 999, LabEx LERMIT, Centre Chirurgical Marie Lannelongue, Le Plessis-Robinson and Université Paris-Sud, School of Medicine, Le Kremlin-Bicêtre (C.G., M.H.); and AP-HP, Service de Pneumologie, Centre de Référence de l'Hypertension Pulmonaire Sévère, DHU Thorax Innovation, Hôpital de Bicêtre, France (M.H.)
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91
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Robinson KM, Dunning Hotopp JC. Mobile elements and viral integrations prompt considerations for bacterial DNA integration as a novel carcinogen. Cancer Lett 2014; 352:137-44. [PMID: 24956175 DOI: 10.1016/j.canlet.2014.05.021] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2014] [Revised: 04/30/2014] [Accepted: 05/01/2014] [Indexed: 12/11/2022]
Abstract
Insertional mutagenesis has been repeatedly demonstrated in cancer genomes and has a role in oncogenesis. Mobile genetic elements can induce cancer development by random insertion into cancer related genes or by inducing translocations. L1s are typically implicated in cancers of an epithelial cell origin, while Alu elements have been implicated in leukemia as well as epithelial cell cancers. Likewise, viral infections have a significant role in cancer development predominantly through integration into the human genome and mutating or deregulating cancer related genes. Human papilloma virus is the best-known example of viral integrations contributing to carcinogenesis. However, hepatitis B virus, Epstein-Barr virus, and Merkel cell polyomavirus also integrate into the human genome and disrupt cancer related genes. Thus far, the role of microbes in cancer has primarily been attributed to mutations induced through chronic inflammation or toxins, as is the case with Helicobacter pylori and enterotoxigenic Bacteroides fragilis. We hypothesize that like mobile elements and viral DNA, bacterial and parasitic DNA may also integrate into the human somatic genome and be oncogenic. Until recently it was believed that bacterial DNA could not integrate into the human genome, but new evidence demonstrates that bacterial insertional mutagenesis may occur in cancer cells. Although this work does not show causation between bacterial insertions and cancer, it prompts more research in this area. Promising new sequencing technologies may reduce the risk of artifactual chimeric sequences, thus diminishing some of the challenges of identifying novel insertions in the somatic human genome.
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Affiliation(s)
- Kelly M Robinson
- Institute for Genome Sciences, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Julie C Dunning Hotopp
- Institute for Genome Sciences, University of Maryland School of Medicine, Baltimore, MD, USA; Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD, USA; Greenebaum Cancer Center, University of Maryland School of Medicine, Baltimore, MD, USA.
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92
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Abstract
Multiple myeloma is the second most common hematologic malignancy in the US. Treatments utilizing alkylating agents, corticosteroids, proteasome inhibitors, and immunomodulatory drugs have resulted in significant survival benefits, however, despite the advances, relapse is inevitable. Decreased depth and duration of response obtained with each successive relapse of disease is typical of the disease course, thereby highlighting a continuing need for new treatment options. With the introduction of monoclonal antibodies for multiple myeloma, new options for treatment in the relapsed setting are on the horizon. Among the new immunologic agents is daratumumab (DARA), a humanized antibody to CD38 with potent multifaceted antitumor activity. Phase I and II clinical trials have demonstrated significant reduction in serum M-protein and bone marrow plasma cell percentage in refractory patients, with an acceptable toxicity profile. Moreover, ex vivo studies have shown that DARA may be particularly useful in combination with currently used anti-myeloma agents. With a recent breakthrough drug designation by the US Food and Drug Administration, DARA shows promise as mono- and combination therapy for the treatment of relapsed/refractory multiple myeloma.
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Affiliation(s)
- Yulian Khagi
- Department of Medicine, New York Presbyterian Hospital-Cornell Medical Center, New York, NY, USA
| | - Tomer M Mark
- Division of Hematology and Medical Oncology, Department of Medicine, Weill Cornell Medical College, New York Presbyterian Hospital-Cornell Medical Center, New York, NY, USA
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93
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Meza-Romero R, Benedek G, Yu X, Mooney JL, Dahan R, Duvshani N, Bucala R, Offner H, Reiter Y, Burrows GG, Vandenbark AA. HLA-DRα1 constructs block CD74 expression and MIF effects in experimental autoimmune encephalomyelitis. THE JOURNAL OF IMMUNOLOGY 2014; 192:4164-73. [PMID: 24683185 DOI: 10.4049/jimmunol.1303118] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
CD74, the cell-surface form of the MHC class II invariant chain, is a key inflammatory factor that is involved in various immune-mediated diseases as part of the macrophage migration inhibitory factor (MIF) binding complex. However, little is known about the natural regulators of CD74 in this context. In order to study the role of the HLA-DR molecule in regulating CD74, we used the HLA-DRα1 domain, which was shown to bind to and downregulate CD74 on CD11b(+) monocytes. We found that DRα1 directly inhibited binding of MIF to CD74 and blocked its downstream inflammatory effects in the spinal cord of mice with experimental autoimmune encephalomyelitis (EAE). Potency of the DRα1 domain could be destroyed by trypsin digestion but enhanced by addition of a peptide extension (myelin oligodendrocyte glycoprotein [MOG]-35-55 peptide) that provided secondary structure not present in DRα1. These data suggest a conformationally sensitive determinant on DRα1-MOG that is responsible for optimal binding to CD74 and antagonism of MIF effects, resulting in reduced axonal damage and reversal of ongoing clinical and histological signs of EAE. These results demonstrate natural antagonist activity of DRα1 for MIF that was strongly potentiated by the MOG peptide extension, resulting in a novel therapeutic, DRα1-MOG-35-55, that within the limitations of the EAE model may have the potential to treat autoimmune diseases such as multiple sclerosis.
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Affiliation(s)
- Roberto Meza-Romero
- Neuroimmunology Research, Department of Veterans Affairs Medical Center, Portland, OR 97239
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94
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Chari RVJ, Miller ML, Widdison WC. Antibody-drug conjugates: an emerging concept in cancer therapy. Angew Chem Int Ed Engl 2014; 53:3796-827. [PMID: 24677743 DOI: 10.1002/anie.201307628] [Citation(s) in RCA: 703] [Impact Index Per Article: 70.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2013] [Indexed: 01/17/2023]
Abstract
Traditional cancer chemotherapy is often accompanied by systemic toxicity to the patient. Monoclonal antibodies against antigens on cancer cells offer an alternative tumor-selective treatment approach. However, most monoclonal antibodies are not sufficiently potent to be therapeutically active on their own. Antibody-drug conjugates (ADCs) use antibodies to deliver a potent cytotoxic compound selectively to tumor cells, thus improving the therapeutic index of chemotherapeutic agents. The recent approval of two ADCs, brentuximab vedotin and ado-trastuzumab emtansine, for cancer treatment has spurred tremendous research interest in this field. This Review touches upon the early efforts in the field, and describes how the lessons learned from the first-generation ADCs have led to improvements in every aspect of this technology, i.e., the antibody, the cytotoxic compound, and the linker connecting them, leading to the current successes. The design of ADCs currently in clinical development, and results from mechanistic studies and preclinical and clinical evaluation are discussed. Emerging technologies that seek to further advance this exciting area of research are also discussed.
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Affiliation(s)
- Ravi V J Chari
- ImmunoGen, Inc. 830 Winter St, Waltham, MA 02451 (USA) http://www.immunogen.com.
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95
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Chari RVJ, Miller ML, Widdison WC. Antikörper-Wirkstoff-Konjugate: ein neues Konzept in der Krebstherapie. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201307628] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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96
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Zhang M, Qian J, Lan Y, Lu Y, Li H, Hong B, Zheng Y, He J, Yang J, Yi Q. Anti-β₂M monoclonal antibodies kill myeloma cells via cell- and complement-mediated cytotoxicity. Int J Cancer 2014; 135:1132-41. [PMID: 24474467 DOI: 10.1002/ijc.28745] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2013] [Accepted: 01/15/2014] [Indexed: 12/26/2022]
Abstract
Our previous studies showed that anti-β2M monoclonal antibodies (mAbs) at high doses have direct apoptotic effects on myeloma cells, suggesting that anti-β2M mAbs might be developed as a novel therapeutic agent. In this study, we investigated the ability of the mAbs at much lower concentrations to indirectly kill myeloma cells by utilizing immune effector cells or molecules. Our results showed that anti-β2M mAbs effectively lysed MM cells via antibody-dependent cell-mediated cytotoxicity (ADCC) and complement-dependent cytotoxicity (CDC), which were correlated with and dependent on the surface expression of β2M on MM cells. The presence of MM bone marrow stromal cells or addition of IL-6 did not attenuate anti-β2M mAb-induced ADCC and CDC activities against MM cells. Furthermore, anti-β2M mAbs only showed limited cytotoxicity toward normal B cells and nontumorous mesenchymal stem cells, indicating that the ADCC and CDC activities of the anti-β2M mAbs were more prone to the tumor cells. Lenalidomide potentiated in vitro ADCC activity against MM cells and in vivo tumor inhibition capacity induced by the anti-β2M mAbs by enhancing the activity of NK cells. These results support clinical development of anti-β2M mAbs, both as a monotherapy and in combination with lenalidomide, to improve MM patient outcome.
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Affiliation(s)
- Mingjun Zhang
- Department of Cancer Biology, Lerner Research Institute, Cleveland Clinic, Cleveland, OH
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Zhang JF, Hua R, Liu DJ, Liu W, Huo YM, Sun YW. Effect of CD74 on the prognosis of patients with resectable pancreatic cancer. Hepatobiliary Pancreat Dis Int 2014; 13:81-6. [PMID: 24463084 DOI: 10.1016/s1499-3872(14)60011-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
BACKGROUND CD74 is known as a type II transmembrane glycoprotein that is associated with the major histocompatibility complex class II alpha and beta chains. Recent studies have demonstrated that the expression of CD74 is also linked to some forms of tumors. The present study was to assess the effect of CD74 expression on the prognosis of resectable pancreatic ductal adenocarcinoma (PDAC). METHODS Forty-six patients who had received a curative resection of primary PDAC and postoperative chemotherapy were included in this study. Immunohistochemical staining was conducted of CD74 on paraffin-embedded tumor sample slices. The patients were grouped according to CD74 staining: CD74 (-): CD74 positive tumor cells<25%; and CD74 (+): CD74 positive tumor cells ≥25%. The correlation of CD74 expression level with clinicopathological features and cumulative survival rate was calculated. RESULTS The numbers of CD74 (+) and (-) patients were 32 and 14, respectively. CD74 (+) patients showed a high rate of perineural invasion (P=0.007). The 3- and 5-year cumulative survival rates of CD74 (-) patients were significantly higher than those of CD74 (+) patients (62% and 41% vs 9% and 0%, P=0.000). Multivariate analysis showed that CD74 expression and lymphatic permeation were the independent prognostic indicators. CONCLUSIONS The overexpression of CD74 is a key factor associated with perineural invasion. Lower-stage (I and II) PDAC patients with CD74 overexpression have a poor prognosis even if they receive a curative resection. CD74 can be used as a prognostic indicator for resectable PDAC.
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Affiliation(s)
- Jun-Feng Zhang
- Department of General Surgery, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200127, China.
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Chen X, Chang CH, Goldenberg DM. Novel strategies for improved cancer vaccines. Expert Rev Vaccines 2014; 8:567-76. [DOI: 10.1586/erv.09.11] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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Smith MR, Jin F, Joshi I. Milatuzumab and veltuzumab induce apoptosis through JNK signalling in an NF-κB dependent human transformed follicular lymphoma cell line. Br J Haematol 2014; 165:151-3. [PMID: 24386925 DOI: 10.1111/bjh.12711] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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100
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Boyle DP, McCourt CM, Matchett KB, Salto-Tellez M. Molecular and clinicopathological markers of prognosis in breast cancer. Expert Rev Mol Diagn 2013; 13:481-98. [PMID: 23782255 DOI: 10.1586/erm.13.29] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A vast body of research in breast cancer prognostication has accumulated. Yet despite this, patients within current prognostic categories may have significantly different outcomes. There is a need to more accurately divide those cancer types associated with an excellent prognosis from those requiring more aggressive therapy. Gene expression array studies have revealed the numerous molecular breast cancer subtypes that are associated with differing outcomes. Furthermore, as next generation technologies evolve and further reveal the complexities of breast cancer, it is likely that existing prognostic approaches will become progressively refined. Future prognostication in breast cancer requires a morphomolecular, multifaceted approach involving the assessment of anatomical disease extent and levels of protein, DNA and RNA expression. One of the major challenges in prognostication will be the integration of potential assays into existing clinical systems and identification of appropriate patient subgroups for analysis.
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Affiliation(s)
- David P Boyle
- Centre for Cancer Research and Cell Biology, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK.
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