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Du J, Sun Q, Wang Z, Wang F, Chen F, Wang H, Shang G, Chen X, Ding S, Li C, Wu D, Zhang W, Zhong M, Li Y. Tubular epithelial cells derived-exosomes containing CD26 protects mice against renal ischemia/reperfusion injury by maintaining proliferation and dissipating inflammation. Biochem Biophys Res Commun 2021; 553:134-140. [PMID: 33770578 DOI: 10.1016/j.bbrc.2021.03.057] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Accepted: 03/11/2021] [Indexed: 01/21/2023]
Abstract
Ischemia-reperfusion injury (IR) is the leading cause of acute kidney injury (AKI). No effective drugs to treat IR-related AKI are currently available. Recent pre-clinical trials have evaluated the therapeutic potential of extracellular vesicles-exosomes to chronic kidney disease. Here, we found exosomes derived from the tubular epithelial cell in IR condition (ExoIR) enriched CD26, compared with control (ExoNormal). Tracking exosomes in vivo certified tubular epithelial cell uptake exosomes. We have isolated exosomes with overexpression of CD26 (ExoCD26+) from culture media from tubular epithelial cell line transferred by adenovirus vectors. After administration of exosomes (100 mg) or bovine serum albumin (BSA, equivalent protein control) in IR or sham operation mice after 72 h via tail vein injection, the renal function impairment and histology injury were relived in mice receiving ExoCD26+. Immunofluorescence staining with proliferating cell nuclear antigen revealed ExoCD26+ recovered proliferation of cells partly after IR injury. Cell cycle modulator, p53 and p21 were upregulated in IR mice receiving BSA control, ExoNormal, and ExoIR. ExoCD26+ significantly blunt this protein upregulation. Inflammatory cell infiltration and chemokine receptor (CXCR4) were dissipated in IR mice receiving ExoCD26+. Downstream chemokine of CXCR4, stromal derived factor-1 (SDF1) also decreased after administration of ExoCD26+ in IR mice. Finally, ExoCD26+ suppressed inundant collagenⅠ expression in IR kidney. In conclusion, Tubular epithelial cells derived-exosomes containing CD26 might be one of the therapy modes for IR-AKI by maintaining proliferation and dissipating inflammation.
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Affiliation(s)
- Juan Du
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China; Department of Critical Care Medicine, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Qiang Sun
- Department of Vascular Surgery, Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Zhihao Wang
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China; Department of Geriatric Medicine, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Key Laboratory of Cardiovascular Proteomics of Shandong Province, Jinan, Shandong, China
| | - Feng Wang
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China; Department of Critical Care Medicine, Shandong Provincial Hospital, Jinan, Shandong, China
| | - Fangfang Chen
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Hao Wang
- Department of Critical Care Medicine, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Guokai Shang
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Xiaomei Chen
- Department of Critical Care Medicine, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Shifang Ding
- Department of Critical Care Medicine, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Chen Li
- Department of Critical Care Medicine, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Dawei Wu
- Department of Critical Care Medicine, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Qingdao, Shandong, China
| | - Wei Zhang
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Ming Zhong
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Yihui Li
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China; Department of Critical Care Medicine, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.
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Targeting CD26 suppresses proliferation of malignant mesothelioma cell via downmodulation of ubiquitin-specific protease 22. Biochem Biophys Res Commun 2018; 504:491-498. [PMID: 30197002 DOI: 10.1016/j.bbrc.2018.08.193] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Accepted: 08/29/2018] [Indexed: 11/24/2022]
Abstract
Malignant pleural mesothelioma (MPM) is an aggressive malignancy arising from mesothelial lining of pleura. It is associated with a poor prognosis, partly due to the lack of a precise understanding of the molecular mechanisms associated with its malignant behavior. In the present study, we expanded on our previous studies on cell cycle control of MPM cells by targeting CD26 molecule with humanized anti-CD26 monoclonal antibody (HuCD26mAb), focusing particularly on ubiquitin-specific protease 22 (USP22). We showed that USP22 protein expression is detected in clinical specimens of MPM and that USP22 knockdown, as well as CD26 knockdown, significantly inhibits the growth and proliferation of MPM cells in vitro and in vivo. Moreover, depletion of both USP22 and CD26 suppresses MPM cell proliferation even more profoundly. Furthermore, expression levels of USP22 correlate with those of CD26. HuCD26mAb treatment induces a decrease in USP22 level through its interaction with the CD26 molecule, leading to increased levels of ubiquitinated histone H2A and p21. By demonstrating a CD26-related linkage with USP22 in MPM cell inhibition induced by HuCD26mAb, our present study hence characterizes USP22 as a novel target molecule while concurrently suggesting a new therapeutic strategy for MPM.
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Beckenkamp A, Davies S, Willig JB, Buffon A. DPPIV/CD26: a tumor suppressor or a marker of malignancy? Tumour Biol 2016; 37:7059-73. [DOI: 10.1007/s13277-016-5005-2] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2015] [Accepted: 02/25/2016] [Indexed: 12/12/2022] Open
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Kawaguchi T, Kodama T, Hikita H, Makino Y, Saito Y, Tanaka S, Shimizu S, Sakamori R, Miyagi T, Wada H, Nagano H, Hiramatsu N, Tatsumi T, Takehara T. Synthetic lethal interaction of combined CD26 and Bcl-xL inhibition is a powerful anticancer therapy against hepatocellular carcinoma. Hepatol Res 2015; 45:1023-1033. [PMID: 25297967 DOI: 10.1111/hepr.12434] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2014] [Revised: 10/03/2014] [Accepted: 10/05/2014] [Indexed: 12/27/2022]
Abstract
AIM CD26 is a membrane glycoprotein that has multiple functions, including dipeptidyl peptidase IV activity. CD26 expression varies in different tumor types, and its role in tumor growth in hepatocellular carcinoma (HCC) remains unclear. METHODS CD26 expression levels were examined in resected HCC and surrounding non-cancerous lesions. The effect of CD26 knockdown on the cellular proliferation of HepG2 or Huh7 cells, both of which highly express CD26, was studied in vitro. RESULTS CD26 mRNA expression levels were significantly increased in HCC compared with their surrounding non-cancerous lesions. We confirmed that various HCC cell lines, especially HepG2 and Huh7 cells, showed high expression levels of CD26. siRNA-mediated knockdown of CD26 suppressed hepatoma cell growth in vitro. CD26 knockdown induced cell cycle arrest through the upregulation of Cip/Kip family proteins, p21 in HepG2 cells and p27 in Huh7 cells. CD26 knockdown did not affect apoptosis, but it increased expressions of the pro-apoptotic proteins Bim and Bak and the anti-apoptotic protein Bcl-xL, suggesting an addiction of CD26 knockdown cells to Bcl-xL for survival. We thus treated CD26 knockdown cells with ABT-737, a Bcl-xL/-2/-w inhibitor, and observed that the synthetic lethal interaction of combined Bcl-xL and CD26 inhibition induced significant apoptosis and impaired cellular viability. CONCLUSION CD26 mRNA was overexpressed in HCC, and its inhibition suppressed cellular proliferation through cell cycle arrest. The combined use of CD26 knockdown with a Bcl-xL inhibitor further elicited substantial apoptosis and therefore may serve as a powerful anticancer combination therapy against HCC.
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Affiliation(s)
- Tsukasa Kawaguchi
- Department of Gastroenterology and Hepatology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Takahiro Kodama
- Department of Gastroenterology and Hepatology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Hayato Hikita
- Department of Gastroenterology and Hepatology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Yuki Makino
- Department of Gastroenterology and Hepatology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Yoshinobu Saito
- Department of Gastroenterology and Hepatology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Satoshi Tanaka
- Department of Gastroenterology and Hepatology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Satoshi Shimizu
- Department of Gastroenterology and Hepatology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Ryotaro Sakamori
- Department of Gastroenterology and Hepatology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Takuya Miyagi
- Department of Gastroenterology and Hepatology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Hiroshi Wada
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, Suita, Japan
| | - Hiroaki Nagano
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, Suita, Japan
| | - Naoki Hiramatsu
- Department of Gastroenterology and Hepatology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Tomohide Tatsumi
- Department of Gastroenterology and Hepatology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Tetsuo Takehara
- Department of Gastroenterology and Hepatology, Osaka University Graduate School of Medicine, Suita, Japan
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Komiya E, Ohnuma K, Yamazaki H, Hatano R, Iwata S, Okamoto T, Dang NH, Yamada T, Morimoto C. CD26-mediated regulation of periostin expression contributes to migration and invasion of malignant pleural mesothelioma cells. Biochem Biophys Res Commun 2014; 447:609-15. [PMID: 24747072 DOI: 10.1016/j.bbrc.2014.04.037] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2014] [Accepted: 04/08/2014] [Indexed: 12/23/2022]
Abstract
Malignant pleural mesothelioma (MPM) is an aggressive malignancy arising from mesothelial lining of pleura. It is generally associated with a history of asbestos exposure and has a very poor prognosis, partly due to the lack of a precise understanding of the molecular mechanisms associated with its malignant behavior. In the present study, we expanded on our previous studies on the enhanced motility and increased CD26 expression in MPM cells, with a particular focus on integrin adhesion molecules. We found that expression of CD26 upregulates periostin secretion by MPM cells, leading to enhanced MPM cell migratory and invasive activity. Moreover, we showed that upregulation of periostin expression results from the nuclear translocation of the basic helix-loop-helix transcription factor Twist1, a process that is mediated by CD26-associated activation of Src phosphorylation. While providing new and profound insights into the molecular mechanisms involved in MPM biology, these findings may also lead to the development of novel therapeutic strategies for MPM.
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Affiliation(s)
- Eriko Komiya
- Department of Therapy Development and Innovation for Immune Disorders and Cancers, Graduate School of Medicine, Juntendo University, 2-1-1, Hongo, Bunkyo-ku, Tokyo 113-8421, Japan
| | - Kei Ohnuma
- Department of Therapy Development and Innovation for Immune Disorders and Cancers, Graduate School of Medicine, Juntendo University, 2-1-1, Hongo, Bunkyo-ku, Tokyo 113-8421, Japan.
| | - Hiroto Yamazaki
- Department of Therapy Development and Innovation for Immune Disorders and Cancers, Graduate School of Medicine, Juntendo University, 2-1-1, Hongo, Bunkyo-ku, Tokyo 113-8421, Japan
| | - Ryo Hatano
- Department of Therapy Development and Innovation for Immune Disorders and Cancers, Graduate School of Medicine, Juntendo University, 2-1-1, Hongo, Bunkyo-ku, Tokyo 113-8421, Japan
| | - Satoshi Iwata
- Department of Therapy Development and Innovation for Immune Disorders and Cancers, Graduate School of Medicine, Juntendo University, 2-1-1, Hongo, Bunkyo-ku, Tokyo 113-8421, Japan
| | - Toshihiro Okamoto
- Department of Therapy Development and Innovation for Immune Disorders and Cancers, Graduate School of Medicine, Juntendo University, 2-1-1, Hongo, Bunkyo-ku, Tokyo 113-8421, Japan
| | - Nam H Dang
- Division of Hematology/Oncology, University of Florida, 1600 SW Archer Road, Box 100278, Room MSB M410A, Gainesville, FL 32610, USA
| | - Taketo Yamada
- Department of Pathology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan
| | - Chikao Morimoto
- Department of Therapy Development and Innovation for Immune Disorders and Cancers, Graduate School of Medicine, Juntendo University, 2-1-1, Hongo, Bunkyo-ku, Tokyo 113-8421, Japan
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Yamamoto J, Ohnuma K, Hatano R, Okamoto T, Komiya E, Yamazaki H, Iwata S, Dang NH, Aoe K, Kishimoto T, Yamada T, Morimoto C. Regulation of somatostatin receptor 4-mediated cytostatic effects by CD26 in malignant pleural mesothelioma. Br J Cancer 2014; 110:2232-45. [PMID: 24743707 PMCID: PMC4007235 DOI: 10.1038/bjc.2014.151] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2014] [Accepted: 02/26/2014] [Indexed: 02/07/2023] Open
Abstract
Background: Malignant pleural mesothelioma (MPM) is an aggressive neoplasm arising from mesothelial lining of pleura. CD26 molecules preferentially expressed on epithelioid type of MPM. This study investigates the molecular mechanisms of CD26 regulating MPM cells in vitro and in vivo. Methods: Biochemical and cell biological approaches were used for identifying a novel molecular target of MPM. Its contribution to tumour expansion has been also assessed using animal models. The clinical samples of MPM were also assessed for its expression. Results: We identify that cytostatic effects in MPM are mediated by somatostatin (SST) receptor 4 (SSTR4), being inhibited by the interaction of CD26 molecules. We also indicates that SSTR4-mediated cytostatic effects are regulated by SHP-2 PTP, and that this inhibitory effect by SST agonist is enhanced via lipid raft clustering of associated molecules following crosslinking of anti-CD26 antibody. Finally, using an in vivo xenograft model, we demonstrate that the anti-tumour effect of anti-CD26 mAb is enhanced when combined with SSTR4 agonist treatment, and that SSTR4 is highly coexpressed with CD26 on epithelioid or biphasic types of MPM tissues obtained from patients' surgical specimens. Conclusions: Combination therapy with humanised anti-CD26 mAb and SSTR4 agonist may therefore potentiate anti-tumour effect on MPM.
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Affiliation(s)
- J Yamamoto
- Department of Therapy Development and Innovation for Immune Disorders and Cancers, Graduate School of Medicine, Juntendo University, 2-1-1, Hongo, Bunkyo-ku, Tokyo 113-8421, Japan
| | - K Ohnuma
- Department of Therapy Development and Innovation for Immune Disorders and Cancers, Graduate School of Medicine, Juntendo University, 2-1-1, Hongo, Bunkyo-ku, Tokyo 113-8421, Japan
| | - R Hatano
- Department of Therapy Development and Innovation for Immune Disorders and Cancers, Graduate School of Medicine, Juntendo University, 2-1-1, Hongo, Bunkyo-ku, Tokyo 113-8421, Japan
| | - T Okamoto
- Department of Therapy Development and Innovation for Immune Disorders and Cancers, Graduate School of Medicine, Juntendo University, 2-1-1, Hongo, Bunkyo-ku, Tokyo 113-8421, Japan
| | - E Komiya
- Department of Therapy Development and Innovation for Immune Disorders and Cancers, Graduate School of Medicine, Juntendo University, 2-1-1, Hongo, Bunkyo-ku, Tokyo 113-8421, Japan
| | - H Yamazaki
- Department of Therapy Development and Innovation for Immune Disorders and Cancers, Graduate School of Medicine, Juntendo University, 2-1-1, Hongo, Bunkyo-ku, Tokyo 113-8421, Japan
| | - S Iwata
- Department of Therapy Development and Innovation for Immune Disorders and Cancers, Graduate School of Medicine, Juntendo University, 2-1-1, Hongo, Bunkyo-ku, Tokyo 113-8421, Japan
| | - N H Dang
- Division of Hematology/Oncology, University of Florida, 1600 SW Archer Road, Box 100278, Room MSB M410A, Gainesville, FL 32610, USA
| | - K Aoe
- Department of Medical Oncology and Clinical Research, National Hospital Organization Yamaguchi-Ube Medical Center, 685 Higashi-Kiwa, Ube, Yamaguchi 755-0241, Japan
| | - T Kishimoto
- Department of Respiratory Medicine, Okayama Rosai Hospital, 1-10-25 Chikkomidorimachi, Okayama Minami-ku, Okayama 702-8055, Japan
| | - T Yamada
- Department of Pathology, Keio University School of Medicine, 35 Shinanomachi Shinjuku-ku, Tokyo 160-8582, Japan
| | - C Morimoto
- Department of Therapy Development and Innovation for Immune Disorders and Cancers, Graduate School of Medicine, Juntendo University, 2-1-1, Hongo, Bunkyo-ku, Tokyo 113-8421, Japan
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Hatano R, Ohnuma K, Yamamoto J, Dang NH, Yamada T, Morimoto C. Prevention of acute graft-versus-host disease by humanized anti-CD26 monoclonal antibody. Br J Haematol 2013; 162:263-77. [PMID: 23692598 DOI: 10.1111/bjh.12378] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2013] [Accepted: 04/03/2013] [Indexed: 01/31/2023]
Abstract
CD26 (DPP4) is a T cell costimulatory molecule as well as T cell activation marker, and CD26(+) T cells are accumulated in inflamed tissues, such as rheumatoid synovitis and autoimmune thyroiditis. In the present study, we found accumulation of CD26(+) T cells in graft-versus-host disease (GVHD) target organs. To expand our in vitro findings to an in vivo system, we examined CD26-dependent organ injury in a xenogeneic GVHD (x-GVHD) murine model. Following intraperitoneal injection of human peripheral blood mononuclear cells into non-obese diabetic severe combined immunodeficiency/γ(c) (-/-) mice (hu-PBL-NOG mice), the mice exhibited the onset of GVHD symptoms associated with the presence of CD26(high) human lymphocytes in the peripheral blood and GVHD target tissues. Administration of humanized anti-human CD26 monoclonal antibody (mAb) decreased x-GVHD severity and prolonged survival in hu-PBL-NOG mice without loss of engraftment of human T cells, while increasing doses of CTLA4- immunoglobulin fusion protein diminished engraftment of human lymphocytes. Importantly, anti-CD26 mAb treatment preserved the graft-versus-leukaemia effects in studies using cotransplantation of P815 murine leukaemic cells. In addition, CD26(+) lymphocytes infiltrated the GVHD patients' target tissues. Altogether, our data indicate a role for CD26 in the regulation of GVHD and point to CD26 as a novel target for therapeutic intervention in this disease.
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Affiliation(s)
- Ryo Hatano
- Department of Therapy Development and Innovation for Immune disorders and Cancers, Graduate School of Medicine, Juntendo University, Tokyo, Japan
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8
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Yamada K, Hayashi M, Madokoro H, Nishida H, Du W, Ohnuma K, Sakamoto M, Morimoto C, Yamada T. Nuclear localization of CD26 induced by a humanized monoclonal antibody inhibits tumor cell growth by modulating of POLR2A transcription. PLoS One 2013; 8:e62304. [PMID: 23638030 PMCID: PMC3639274 DOI: 10.1371/journal.pone.0062304] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2012] [Accepted: 03/19/2013] [Indexed: 12/29/2022] Open
Abstract
CD26 is a type II glycoprotein known as dipeptidyl peptidase IV and has been identified as one of the cell surface markers associated with various types of cancers and a subset of cancer stem cells. Recent studies have suggested that CD26 expression is involved in tumor growth, tumor invasion, and metastasis. The CD26 is shown in an extensive intracellular distribution, ranging from the cell surface to the nucleus. We have previously showed that the humanized anti-CD26 monoclonal antibody (mAb), YS110, exhibits inhibitory effects on various cancers. However, functions of CD26 on cancer cells and molecular mechanisms of impaired tumor growth by YS110 treatment are not well understood. In this study, we demonstrated that the treatment with YS110 induced nuclear translocation of both cell-surface CD26 and YS110 in cancer cells and xenografted tumor. It was shown that the CD26 and YS110 were co-localized in nucleus by immunoelectron microscopic analysis. In response to YS110 treatment, CD26 was translocated into the nucleus via caveolin-dependent endocytosis. It was revealed that the nuclear CD26 interacted with a genomic flanking region of the gene for POLR2A, a subunit of RNA polymerase II, using a chromatin immunoprecipitation assay. This interaction with nuclear CD26 and POLR2A gene consequently led to transcriptional repression of the POLR2A gene, resulting in retarded cell proliferation of cancer cells. Furthermore, the impaired nuclear transport of CD26 by treatment with an endocytosis inhibitor or expressions of deletion mutants of CD26 reversed the POLR2A repression induced by YS110 treatment. These findings reveal that the nuclear CD26 functions in the regulation of gene expression and tumor growth, and provide a novel mechanism of mAb-therapy related to inducible translocation of cell-surface target molecule into the nucleus.
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Affiliation(s)
- Kohji Yamada
- Department of Pathology, School of Medicine, Keio University, Shinjuku-ku, Tokyo, Japan
| | - Mutsumi Hayashi
- Department of Pathology, School of Medicine, Keio University, Shinjuku-ku, Tokyo, Japan
| | - Hiroko Madokoro
- Department of Pathology, School of Medicine, Keio University, Shinjuku-ku, Tokyo, Japan
| | - Hiroko Nishida
- Department of Pathology, School of Medicine, Keio University, Shinjuku-ku, Tokyo, Japan
| | - Wenlin Du
- Department of Pathology, School of Medicine, Keio University, Shinjuku-ku, Tokyo, Japan
| | - Kei Ohnuma
- Department of Therapy Development and Innovation for Immune Disorders and Cancers, Graduate School of Medicine, Juntendo University, Bunkyo-ku, Tokyo, Japan
| | - Michiie Sakamoto
- Department of Pathology, School of Medicine, Keio University, Shinjuku-ku, Tokyo, Japan
| | - Chikao Morimoto
- Department of Therapy Development and Innovation for Immune Disorders and Cancers, Graduate School of Medicine, Juntendo University, Bunkyo-ku, Tokyo, Japan
| | - Taketo Yamada
- Department of Pathology, School of Medicine, Keio University, Shinjuku-ku, Tokyo, Japan
- * E-mail:
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Crescence L, Beraud E, Sbarra V, Bernard JP, Lombardo D, Mas E. Targeting a novel onco-glycoprotein antigen at tumoral pancreatic cell surface by mAb16D10 induces cell death. THE JOURNAL OF IMMUNOLOGY 2012; 189:3386-96. [PMID: 22956586 DOI: 10.4049/jimmunol.1102647] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
The mAb16D10 was raised against a pathological onco-glycoform of bile salt-dependent lipase isolated from the pancreatic juice of a patient suffering from a pancreatic adenocarcinoma. We previously showed that mAb16D10 specifically discriminates human pancreatic tumor tissues from other cancer and nontumor tissues. In this study, we report that mAb16D10 inhibited the proliferation of only human pancreatic tumor cells expressing 16D10 plasma membrane Ag. Interaction of mAb16D10 with its cognate surface Ag on pancreatic cells promoted cell death by activation of the p53- and caspase-dependent apoptotic pathway, and silencing of p53 decreased cell death. The decreased proliferation was also partly due to cell cycle arrest in G1/S phase, mAb16D10 triggering of glycogen synthase kinase-3β (GSK-3β) activation, degradation of β-catenin, and decreased expression of cyclin D1. GSK-3β positively affected p53 expression in pancreatic tumor cells after mAb16D10 binding. Inhibition of GSK-3β activity reversed the effects induced by mAb16D10 in SOJ-6 cells, supporting the pivotal role of GSK-3β signaling in the mechanisms of action induced by mAb16D10. Also, mAb16D10 cell treatment led to membrane overexpression of E-cadherin. Both E-cadherin and tumor Ag were localized in membrane lipid cholesterol-rich microdomains and are thought to belong to signaling platforms involved in the induction of cell cycle arrest and cell death. Overall, this study reveals that mAb16D10 holds great potential to prevent pancreatic tumor proliferation by apoptotic cell death, thus promising therapeutic prospects for treatment of pancreatic adenocarcinoma, a highly lethal disease.
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Affiliation(s)
- Lydie Crescence
- Aix-Marseille Université, Centre de Recherche en Oncologie Biologique et Oncopharmacologie, F-13005, Marseille, France
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Salgado FJ, Pérez-Díaz A, Villanueva NM, Lamas O, Arias P, Nogueira M. CD26: a negative selection marker for human Treg cells. Cytometry A 2012; 81:843-55. [PMID: 22949266 DOI: 10.1002/cyto.a.22117] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2011] [Revised: 05/18/2012] [Accepted: 07/24/2012] [Indexed: 12/26/2022]
Abstract
A major obstacle hampering the therapeutic application of regulatory T (Treg) cells is the lack of suitable extracellular markers, which complicates their identification/isolation. Treg cells are normally isolated via CD25 (IL-2Rα) targeting, but this protein is also expressed by activated CD4(+) effector T (Teff) lymphocytes. Other extracellular (positive or negative) Treg selection markers (e.g., HLA-DR, CD127) are also nonspecific. CD26 is an extracellular peptidase whose high expression has been traditionally used as an indicator of immune activation and effector functions in T cells. Now, we provide flow cytometry data showing high levels of CD26 within CD4(+)CD25(-) or CD4(+)FoxP3(-/low) effector T (Teff) lymphocytes, but negative or low levels (CD26(-/low)) in Treg cells selected according to the CD4(+)CD25(high) or the CD4(+)FoxP3(high) phenotype. Unlike the negative marker CD127 (IL-7Rα), which is down modulated in CD4(+) Teff lymphocytes after TCR triggering, most of these cells upregulate CD26 and take a CD4(+)CD25(+/high) CD26(+) phenotype upon activation. In contrast, there is only a slight upregulation within Treg cells (CD4(+)CD25(high) CD26(-/low)). Thus, differences in CD26 levels between Treg and Teff subsets are stable, and assessment of this marker, in combination with others like CD25, FoxP3, or CD127, may be useful during the quantitative evaluation or the isolation of Treg cells in samples containing activated Teff lymphocytes (e.g., from patients with autoimmune/inflammatory diseases).
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Affiliation(s)
- Francisco J Salgado
- Department of Biochemistry and Molecular Biology, Faculty of Biology/CIBUS, University of Santiago de Compostela, Coruña, España
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Yamazaki H, Naito M, Ghani FI, Dang NH, Iwata S, Morimoto C. Characterization of cancer stem cell properties of CD24 and CD26-positive human malignant mesothelioma cells. Biochem Biophys Res Commun 2012; 419:529-36. [DOI: 10.1016/j.bbrc.2012.02.054] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2012] [Accepted: 02/10/2012] [Indexed: 12/31/2022]
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12
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Abstract
Over a hundred years has passed since the discovery of the "magic bullet" serum therapy by Kitasato and Behring, the first ever therapeutic use of antibodies. More than 80 years later, the investigation of immunoglobulin structure and function and the development of cell and molecular biology introduced the production of monoclonal antibodies (MoAbs). In the 35 years since the first process for creating MoAbs was introduced, they have remained the centerpiece of the growing biotechnology and pharmaceutical industry. Herein, I review the history, development, and clinical settings of therapeutic MoAbs that have had a significant impact on life-saving medicine.
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13
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Identification of cancer stem cell markers in human malignant mesothelioma cells. Biochem Biophys Res Commun 2011; 404:735-42. [DOI: 10.1016/j.bbrc.2010.12.054] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2010] [Accepted: 12/09/2010] [Indexed: 12/18/2022]
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14
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Bukong TN, Hall WW, Jacqué JM. Lentivirus-associated MAPK/ERK2 phosphorylates EMD and regulates infectivity. J Gen Virol 2010; 91:2381-92. [PMID: 20463147 DOI: 10.1099/vir.0.019604-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Infection of a cell by lentiviruses, such as human immunodeficiency virus type 1 or feline immunodeficiency virus, results in the formation of a reverse transcription complex, the pre-integration complex (PIC), where viral DNA is synthesized. In non-dividing cells, efficient nuclear translocation of the PIC requires the presence of the inner nuclear lamina protein emerin (EMD). Here, we demonstrate that EMD phosphorylation is induced early after infection in primary non-dividing cells. Furthermore, we demonstrate that EMD phosphorylation is dependent on virion-associated mitogen-activated protein kinase (MAPK). Specific inhibition of MAPK activity with kinase inhibitors markedly reduced EMD phosphorylation and resulted in decreased integration of the proviral DNA into chromatin. Similarly, when a MEK1 kinase-inactive mutant was expressed in virus-producer cells, virus-induced phosphorylation of EMD was impaired and viral integration reduced during the subsequent infection. Expression of constitutively active MEK1 kinase in producer cells did not result in modulation of EMD phosphorylation or viral integration during subsequent infection. These studies demonstrate that, in addition to phosphorylating components of the PICs at an early step of infection, virion-associated MAPK plays a role in facilitating cDNA integration after nuclear translocation through phosphorylation of target-cell EMD.
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Affiliation(s)
- Terence N Bukong
- University College Dublin, Centre for Research in Infectious Diseases, Belfield, Dublin 4, Ireland
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15
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Yamada K, Hayashi M, Du W, Ohnuma K, Sakamoto M, Morimoto C, Yamada T. Localization of CD26/DPPIV in nucleus and its nuclear translocation enhanced by anti-CD26 monoclonal antibody with anti-tumor effect. Cancer Cell Int 2009; 9:17. [PMID: 19555512 PMCID: PMC2709605 DOI: 10.1186/1475-2867-9-17] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2009] [Accepted: 06/26/2009] [Indexed: 01/04/2023] Open
Abstract
Background CD26 is a type II, cell surface glycoprotein known as dipeptidyl peptidase (DPP) IV. Previous studies have revealed CD26 expression in T cell leukemia/lymphoma and malignant mesothelioma, and an inhibitory effect of anti-CD26 monoclonal antibody (mAb) against the growth of CD26+ cancer cells in vitro and in vivo. The function of CD26 in tumor development is unknown and the machinery with which the CD26 mAb induces its anti-tumor effect remains uncharacterized. Results The localization of CD26 in the nucleus of T cell leukemia/lymphoma cells and mesothelioma cells was shown by biochemical and immuno-electron microscopic analysis. The DPPIV enzyme activity was revealed in the nuclear fraction of T cell leukemia/lymphoma cells. These expressions of intra-nuclear CD26 were augmented by treatment with the CD26 mAb, 1F7, with anti-tumor effect against the CD26+ T cell leukemia/lymphoma cells. In contrast, the CD26 mAb, 5F8, without anti-tumor effect, did not augment CD26 expressions in the nucleus. Biotin-labeled, cell surface CD26 translocated into the nucleus constantly, and this translocation was enhanced with 1F7 treatment but not with 5F8. Conclusion These results indicate that the intra-nuclear CD26 which moves from plasma membrane may play certain roles in cell growth of human cancer cells.
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Affiliation(s)
- Kohji Yamada
- Department of Pathology, Keio University School of Medicine, Tokyo, Japan.
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16
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Blockade of CD26-mediated T cell costimulation with soluble caveolin-1-Ig fusion protein induces anergy in CD4+T cells. Biochem Biophys Res Commun 2009; 386:327-32. [PMID: 19523449 DOI: 10.1016/j.bbrc.2009.06.027] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2009] [Accepted: 06/06/2009] [Indexed: 12/15/2022]
Abstract
CD26 binds to caveolin-1 in antigen-presenting cells (APC), and that ligation of CD26 by caveolin-1 induces T cell proliferation in a TCR/CD3-dependent manner. We report herein the effects of CD26-caveolin-1 costimulatory blockade by fusion protein caveolin-1-Ig (Cav-Ig). Soluble Cav-Ig inhibits T cell proliferation and cytokine production in response to recall antigen, or allogeneic APC. Our data hence suggest that blocking of CD26-associated signaling by soluble Cav-Ig may be an effective approach as immunosuppressive therapy.
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17
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Kawasaki N, Lin CW, Inoue R, Khoo KH, Kawasaki N, Ma BY, Oka S, Ishiguro M, Sawada T, Ishida H, Hashimoto T, Kawasaki T. Highly fucosylated N-glycan ligands for mannan-binding protein expressed specifically on CD26 (DPPVI) isolated from a human colorectal carcinoma cell line, SW1116. Glycobiology 2009; 19:437-50. [PMID: 19129245 DOI: 10.1093/glycob/cwn158] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
The serum mannan-binding protein (MBP) is a host defense C-type lectin specific for mannose, N-acetylglucosamine, and fucose residues, and exhibits growth inhibitory activity toward human colorectal carcinoma cells. The MBP-ligand oligosaccharides (MLO) isolated from a human colorectal carcinoma cell line, SW1116, are large, multiantennary N-glycans with highly fucosylated polylactosamine-type structures having Le(b)-Le(a) or tandem repeats of the Le(a) structure at their nonreducing ends. In this study, we isolated the major MBP-ligand glycoproteins from SW1116 cell lysates with an MBP column and identified them as CD26/dipeptidyl peptidase IV (DPPIV) (110 kDa) and CD98 heavy chain (CD98hc)/4F2hc (82 kDa). Glycosidase digestion revealed that CD26 contained such complex-type N-glycans that appear to mediate the MBP binding. MALDI-MS of the N-glycans released from CD26 by PNGase F demonstrated conclusively that CD26 is the major MLO-carrying protein. More interestingly, a comparison of the N-glycans released from the MBP-binding and non-MBP-binding glycopeptides suggested that complex-type N-glycans carrying a minimum of 4 Le(a)/Le(b) epitopes arranged either as multimeric tandem repeats or terminal epitopes on multiantennary structures are critically important for the high affinity binding to MBP. Analysis of the N-glycan attachment sites demonstrated that the high affinity MLO was expressed preferentially at some N-glycosylation sites, but this site preference was not so stringent. Finally, hypothetical 3D models of tandem repeats of the Le(a) epitope and the MBP-Lewis oligosaccharide complex were presented.
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Affiliation(s)
- Nobuko Kawasaki
- Research Center for Glycobiotechnology, Ritsumeikan University, Shiga 525-8577, Japan
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18
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Inamoto T, Yamochi T, Ohnuma K, Iwata S, Kina S, Inamoto S, Tachibana M, Katsuoka Y, Dang NH, Morimoto C. Anti-CD26 monoclonal antibody-mediated G1-S arrest of human renal clear cell carcinoma Caki-2 is associated with retinoblastoma substrate dephosphorylation, cyclin-dependent kinase 2 reduction, p27(kip1) enhancement, and disruption of binding to the extracellular matrix. Clin Cancer Res 2007; 12:3470-7. [PMID: 16740772 DOI: 10.1158/1078-0432.ccr-06-0361] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
PURPOSE CD26 is a 110-kDa cell surface glycoprotein with a role in tumor development through its association with key intracellular proteins. In this report, we show that binding of soluble anti-CD26 monoclonal antibody (mAb) inhibits the growth of the human renal carcinoma cells in both in vitro and in vivo experiments. EXPERIMENTAL DESIGN Growth inhibition by anti-CD26 mAb was assessed using proliferation assay and cell cycle analysis. Anti-CD26 mAb, chemical inhibitors, dominant-negative, or constitutively active forms of specific signaling molecules were used to evaluate CD26-associated pathways. The in vivo growth-inhibitory effect of anti-CD26 mAb was also assessed in a human renal carcinoma mouse xenograft model. RESULTS In vitro experiments show that anti-CD26 mAb induces G1-S cell cycle arrest associated with enhanced p27(kip1) expression, down-regulation of cyclin-dependent kinase 2, and dephosphorylation of retinoblastoma substrate. Moreover, our data show that enhanced p27(kip1) expression is dependent on the attenuation of Akt activity. Anti-CD26 mAb also internalizes cell surface CD26, leading to decreased binding to collagen and fibronectin. Experiments with a mouse xenograft model involving human renal carcinoma cells show that anti-CD26 mAb treatment drastically inhibits tumor growth in tumor-bearing mice, resulting in enhanced survival. CONCLUSIONS Taken together, our data strongly suggest that anti-CD26 mAb treatment may have potential clinical use for CD26-positive renal cell carcinomas.
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MESH Headings
- Animals
- Antibodies, Monoclonal/immunology
- Antibodies, Monoclonal/pharmacology
- Antibodies, Monoclonal/therapeutic use
- Antigen-Antibody Reactions
- Binding Sites
- Carcinoma, Renal Cell/drug therapy
- Carcinoma, Renal Cell/immunology
- Carcinoma, Renal Cell/pathology
- Cell Cycle/drug effects
- Cell Line, Tumor
- Cell Proliferation/drug effects
- Cyclin-Dependent Kinase 2/metabolism
- Cyclin-Dependent Kinase Inhibitor p27/biosynthesis
- Cyclin-Dependent Kinase Inhibitor p27/metabolism
- Dipeptidyl Peptidase 4/biosynthesis
- Dipeptidyl Peptidase 4/immunology
- Dipeptidyl-Peptidase IV Inhibitors
- Disease Models, Animal
- Dose-Response Relationship, Drug
- Drug Screening Assays, Antitumor
- Extracellular Matrix/drug effects
- Extracellular Matrix/metabolism
- Female
- G1 Phase/drug effects
- Humans
- Kidney Neoplasms/drug therapy
- Kidney Neoplasms/immunology
- Kidney Neoplasms/pathology
- Mice
- Mice, Inbred BALB C
- Mice, Nude
- Phosphorylation/drug effects
- Retinoblastoma Protein/metabolism
- S Phase/drug effects
- Structure-Activity Relationship
- Transplantation, Heterologous
- Xenograft Model Antitumor Assays
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Affiliation(s)
- Teruo Inamoto
- Division of Clinical Immunology, Advanced Clinical Research Center, Institute of Medical Science, University of Tokyo, Japan
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19
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Inamoto T, Yamada T, Ohnuma K, Kina S, Takahashi N, Yamochi T, Inamoto S, Katsuoka Y, Hosono O, Tanaka H, Dang NH, Morimoto C. Humanized anti-CD26 monoclonal antibody as a treatment for malignant mesothelioma tumors. Clin Cancer Res 2007; 13:4191-200. [PMID: 17634548 DOI: 10.1158/1078-0432.ccr-07-0110] [Citation(s) in RCA: 71] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
PURPOSE CD26 is a 110-kDa cell surface antigen with a role in tumor development. In this report, we show that CD26 is highly expressed on the cell surface of malignant mesothelioma and that a newly developed humanized anti-CD26 monoclonal antibody (mAb) has an inhibitory effect on malignant mesothelioma cells in both in vitro and in vivo experiments. EXPERIMENTAL DESIGN Using immunohistochemistry, 12 patients' surgical specimens consisting of seven malignant mesothelioma, three reactive mesothelial cells, and two adenomatoid tumors were evaluated for expression of CD26. The effects of CD26 on malignant mesothelioma cells were assessed in the presence of transfection of CD26-expressing plasmid, humanized anti-CD26 mAb, or small interfering RNA against CD26. The in vivo growth inhibitory effect of humanized anti-CD26 mAb was assessed in human malignant mesothelioma cell mouse xenograft models. RESULTS In surgical specimens, CD26 is highly expressed in malignant mesothelioma but not in benign mesothelial tissues. Depletion of CD26 by small interfering RNA results in the loss of adhesive property, suggesting that CD26 is a binding protein to the extracellular matrix. Moreover, our in vitro data indicate that humanized anti-CD26 mAb induces cell lysis of malignant mesothelioma cells via antibody-dependent cell-mediated cytotoxicity in addition to its direct anti-tumor effect via p27(kip1) accumulation. In vivo experiments with mouse xenograft models involving human malignant mesothelioma cells show that humanized anti-CD26 mAb treatment drastically inhibits tumor growth in tumor-bearing mice, resulting in enhanced survival. CONCLUSIONS Our data strongly suggest that humanized anti-CD26 mAb treatment may have potential clinical use as a novel cancer therapeutic agent in CD26-positive malignant mesothelioma.
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Affiliation(s)
- Teruo Inamoto
- Division of Clinical Immunology, Advanced Clinical Research Center, Institute of Medical Science, University of Tokyo, Japan
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20
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Ohnuma K, Uchiyama M, Yamochi T, Nishibashi K, Hosono O, Takahashi N, Kina S, Tanaka H, Lin X, Dang NH, Morimoto C. Caveolin-1 triggers T-cell activation via CD26 in association with CARMA1. J Biol Chem 2007; 282:10117-10131. [PMID: 17287217 DOI: 10.1074/jbc.m609157200] [Citation(s) in RCA: 100] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
CD26 is a widely distributed 110-kDa cell surface glycoprotein with an important role in T-cell costimulation. We demonstrated previously that CD26 binds to caveolin-1 in antigen-presenting cells, and following exogenous CD26 stimulation, Tollip and IRAK-1 disengage from caveolin-1 in antigen-presenting cells. IRAK-1 is then subsequently phosphorylated to up-regulate CD86 expression, resulting in subsequent T-cell proliferation. However, it is unclear whether caveolin-1 is a costimulatory ligand for CD26 in T-cells. Using soluble caveolin-1-Fc fusion protein, we now show that caveolin-1 is the costimulatory ligand for CD26, and that ligation of CD26 by caveolin-1 induces T-cell proliferation and NF-kappaB activation in a T-cell receptor/CD3-dependent manner. We also demonstrated that the cytoplasmic tail of CD26 interacts with CARMA1 in T-cells, resulting in signaling events that lead to NF-kappaB activation. Ligation of CD26 by caveolin-1 recruits a complex consisting of CD26, CARMA1, Bcl10, and IkappaB kinase to lipid rafts. Taken together, our findings provide novel insights into the regulation of T-cell costimulation via the CD26 molecule.
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Affiliation(s)
- Kei Ohnuma
- Division of Clinical Immunology, Advanced Clinical Research Center, Institute of Medical Science, University of Tokyo, 4-6-1, Shirokanedai, Minato-ku, Tokyo 108-8639, Japan
| | - Masahiko Uchiyama
- Division of Clinical Immunology, Advanced Clinical Research Center, Institute of Medical Science, University of Tokyo, 4-6-1, Shirokanedai, Minato-ku, Tokyo 108-8639, Japan
| | - Tadanori Yamochi
- Division of Clinical Immunology, Advanced Clinical Research Center, Institute of Medical Science, University of Tokyo, 4-6-1, Shirokanedai, Minato-ku, Tokyo 108-8639, Japan
| | - Kunika Nishibashi
- Division of Clinical Immunology, Advanced Clinical Research Center, Institute of Medical Science, University of Tokyo, 4-6-1, Shirokanedai, Minato-ku, Tokyo 108-8639, Japan
| | - Osamu Hosono
- Division of Clinical Immunology, Advanced Clinical Research Center, Institute of Medical Science, University of Tokyo, 4-6-1, Shirokanedai, Minato-ku, Tokyo 108-8639, Japan
| | - Nozomu Takahashi
- Division of Clinical Immunology, Advanced Clinical Research Center, Institute of Medical Science, University of Tokyo, 4-6-1, Shirokanedai, Minato-ku, Tokyo 108-8639, Japan
| | - Shinichiro Kina
- Division of Clinical Immunology, Advanced Clinical Research Center, Institute of Medical Science, University of Tokyo, 4-6-1, Shirokanedai, Minato-ku, Tokyo 108-8639, Japan
| | - Hirotoshi Tanaka
- Division of Clinical Immunology, Advanced Clinical Research Center, Institute of Medical Science, University of Tokyo, 4-6-1, Shirokanedai, Minato-ku, Tokyo 108-8639, Japan
| | - Xin Lin
- Department of Molecular and Cellular Oncology, University of Texas, M. D. Anderson Cancer Center, Houston, Texas 77030
| | - Nam H Dang
- Department of Hematologic Malignancies, Nevada Cancer Institute, Las Vegas, Nevada 89135
| | - Chikao Morimoto
- Division of Clinical Immunology, Advanced Clinical Research Center, Institute of Medical Science, University of Tokyo, 4-6-1, Shirokanedai, Minato-ku, Tokyo 108-8639, Japan.
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21
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Gilbert KM, Boger SR, Price P, Fifer EK. T cell tolerance induced by histone deacetylase inhibitor is mediated by P21cip1. Immunopharmacol Immunotoxicol 2006; 27:545-64. [PMID: 16435576 DOI: 10.1080/08923970500416749] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
MEB [n-butyrate 2-(4-morpholinyl) ethyl butyrate hydrochloride], a histone deacetylase inhibitor and G1 blocker, has been shown to induce unresponsiveness in antigen-activated Th1 cells. MEB was tested for here for its ability to inactivate naive alloantigen-specific T cells from DBA/2 and C57BL/10 mice. Since T cells from these two strains of mice have been shown to differ in their cell cycle regulation, it we hoped that this comparison would provide information concerning the role of cycle regulatory proteins in mediating MEB-induced T cell unresponsiveness. MEB inhibited proliferation in a one-way mixed lymphocyte reaction (MLR) in which spleen cells from DBA/2 mice (H-2d) or C57BL/10 mice (H-2b) were stimulated with spleen cells from C57BL/10 or DBA/2 mice, respectively. C57BL/10 responder T cells isolated from the MEB-treated primary MLR remained unresponsive to alloantigen following restimulation in a secondary MLR that did not contain MEB. T cells from DBA/2 mice were less sensitive to MEB-induced unresponsiveness and required a longer exposure or pretreatment with IL-2 to become tolerant. In all cases responsiveness to MEB-induced tolerance in the alloantigen-stimulated T cells corresponded with the levels of the cyclin-dependent kinase inhibitor p21cip1. Additional experiments showed that T cells from p21cip1-deficient mice, unlike T cells from p21cip1 wild-type littermates, were resistant to MEB-induced tolerance. These results underscore the role of p21cip1 in mediating T cell tolerance induced by the histone deacetylase inhibitor MEB.
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Affiliation(s)
- Kathleen M Gilbert
- Department of Microbiology and Immunology, University of Arkansas for Medical Sciences/Arkansas Children's Hospital Research Institute, Little Rock 72205, USA.
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22
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Yamochi T, Yamochi T, Aytac U, Sato T, Sato K, Ohnuma K, McKee KS, Morimoto C, Dang NH. Regulation of p38 Phosphorylation and Topoisomerase IIα Expression in the B-Cell Lymphoma Line Jiyoye by CD26/Dipeptidyl Peptidase IV Is Associated with Enhanced In vitro and In vivo Sensitivity to Doxorubicin. Cancer Res 2005; 65:1973-83. [PMID: 15753397 DOI: 10.1158/0008-5472.can-04-2611] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
CD26 is a Mr 110,000 surface-bound glycoprotein with diverse functional properties, including having a key role in normal T-cell physiology and the development of certain cancers. In this article, we show that surface expression of CD26, especially its intrinsic dipeptidyl peptidase IV (DPPIV) enzyme activity, results in enhanced topoisomerase IIalpha level in the B-cell line Jiyoye and subsequent in vitro sensitivity to doxorubicin-induced apoptosis. In addition, we show that expression of CD26/DPPIV is associated with increased phosphorylation of p38 and its upstream regulators mitogen-activated protein kinase kinase 3/6 and apoptosis signal-regulating kinase 1 and that p38 signaling pathway plays a role in the regulation of topoisomerase IIalpha expression. Besides demonstrating that CD26 effect on topoisomerase IIalpha and doxorubicin sensitivity is applicable to cell lines of both B-cell and T-cell lineages, the potential clinical implication of our work lies with the fact that we now show for the first time that our in vitro results can be extended to a severe combined immunodeficient mouse model. Our findings that CD26 expression can be an in vivo marker of tumor sensitivity to doxorubicin treatment may lead to future treatment strategies targeting CD26/DPPIV for selected human cancers in the clinical setting. Our article thus characterizes the biochemical linkage among CD26, p38, and topoisomerase IIalpha while providing evidence that CD26-associated topoisomerase IIalpha expression results in greater in vitro and in vivo tumor sensitivity to the antineoplastic agent doxorubicin.
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MESH Headings
- Animals
- Annexin A5/metabolism
- Antibiotics, Antineoplastic/pharmacology
- Antigens, Differentiation/metabolism
- Antigens, Neoplasm
- Apoptosis/drug effects
- DNA Topoisomerases, Type II/metabolism
- DNA-Binding Proteins
- Dipeptidyl Peptidase 4/chemistry
- Dipeptidyl Peptidase 4/genetics
- Dipeptidyl Peptidase 4/metabolism
- Doxorubicin/pharmacology
- Female
- Gene Expression Regulation, Neoplastic
- Humans
- In Vitro Techniques
- Lymphoma, B-Cell/drug therapy
- Lymphoma, B-Cell/metabolism
- Lymphoma, B-Cell/pathology
- Lymphoma, T-Cell/drug therapy
- Lymphoma, T-Cell/metabolism
- Lymphoma, T-Cell/pathology
- MAP Kinase Kinase 3/metabolism
- MAP Kinase Kinase 6/metabolism
- Membrane Glycoproteins/metabolism
- Mice
- Mice, SCID
- Neural Cell Adhesion Molecule L1/metabolism
- Phosphorylation/drug effects
- RNA, Small Interfering/pharmacology
- Receptors, Immunologic/metabolism
- Survival Rate
- p38 Mitogen-Activated Protein Kinases/metabolism
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Affiliation(s)
- Toshiko Yamochi
- Department of Lymphoma/Myeloma, University of Texas M.D. Anderson Cancer Center, Houston, Texas 77030, USA
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23
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Drucker DJ. Therapeutic potential of dipeptidyl peptidase IV inhibitors for the treatment of type 2 diabetes. Expert Opin Investig Drugs 2003; 12:87-100. [PMID: 12517256 DOI: 10.1517/13543784.12.1.87] [Citation(s) in RCA: 190] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Incretins are peptide hormones, exemplified by glucose-dependent insulinotropic peptide and glucagon-like peptide 1 that are released from the gut in response to nutrient ingestion and enhance glucose-stimulated insulin secretion. Incretin action is terminated due to N-terminal cleavage of the peptides by the aminopeptidase dipeptidyl peptidase IV (DPP-IV). Hence, inhibition of glucose-dependent insulinotropic peptide and glucagon-like peptide 1 degradation via reduction of DPP-IV activity represents an innovative strategy for enhancing incretin action in vivo. This review summarises the biology of incretin action, the structure, expression and pleiotropic biological activities of DPP-IV and provides an overview of the rationale, potential merits and theoretical pitfalls in the development of DPP-IV inhibitors for the treatment of type 2 diabetes.
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Affiliation(s)
- Daniel J Drucker
- Department of Medicine, Banting and Best Diabetes Centre, Toronto General Hospital, University of Toronto, Toronto, Ontario, M5G 2C4, Canada.
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