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Masuda T, Hirata T, Sakamoto T, Tsubata Y, Ichihara E, Kozuki T, Shoda H, Motonaga M, Yoshida T, Fukutani M, Tsuji-Takayama K, Tamura A, Amagase H, Fujihara H, Aoki G, Akita T, Orihashi Y, Miyata T, Hattori N. Treatment rationale and protocol design: an investigator-initiated phase II study of combination treatment of nivolumab and TM5614, a PAI-1 inhibitor for previously treated patients with non-small cell lung cancer. J Thorac Dis 2024; 16:3381-3388. [PMID: 38883673 PMCID: PMC11170418 DOI: 10.21037/jtd-23-1858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Accepted: 03/29/2024] [Indexed: 06/18/2024]
Abstract
Background There is no established standard 3rd line treatment for patients with advanced non-small cell lung cancer (NSCLC). Although cytotoxic chemotherapeutic agents that are not used as 1st or 2nd line treatment are administrated as 3rd line treatment, their anti-tumor efficacy is insufficient. Anti-programmed death ligand-1 (PD-L1)/programmed death-1 (PD1) treatment is more effective and less toxic than chemotherapy in anti-PD-L1/PD-1 treatment-naïve patients with NSCLC. Therefore, anti-PD-L1/PD-1 therapy is considered an appropriate 3rd line treatment. However, the anti-tumor efficacy is limited in patients previously treated with anti-PD-L1/PD-1 antibody. Today, new drugs are needed to increase the efficacy of anti-PD-L1/PD-1 antibodies. Methods This open-label, single-arm, investigator-initiated phase II study is designed to evaluate combination treatment of nivolumab and TM5614, a plasminogen activator inhibitor (PAI-1) inhibitor as 3rd or more line treatment in NSCLC patients who underwent standard treatment. The primary endpoint is the objective response rate and the secondary endpoints are progression-free survival (PFS), overall survival (OS), duration of response (DOR) and safety. Recruitment began in September 2023 and is expected to continue for approximately three years. Discussion Currently, there is no standard 3rd line treatment for advanced NSCLC, and we hope that the findings of this study will facilitate more effective treatments in this setting. Ethics and dissemination: the study protocol conformed to the ethical principles outlined in the Declaration of Helsinki. All patients will provide written informed consent prior to enrollment. Results will be published in a peer-reviewed publication. Trial Registration This study is registered to Japan Registry of Clinical Trials with number: jRCT2061230039 (19/July/2023).
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Affiliation(s)
- Takeshi Masuda
- Department of Respiratory Medicine, Hiroshima University Hospital, Hiroshima, Japan
| | - Taizo Hirata
- Clinical Research Center in Hiroshima University Hospital, Hiroshima, Japan
| | - Tomohiro Sakamoto
- Division of Respiratory Medicine and Rheumatology, Department of Multidisciplinary Internal Medicine, Faculty of Medicine, Tottori University, Yonago, Japan
| | - Yukari Tsubata
- Department of Internal Medicine, Division of Medical Oncology and Respiratory Medicine, Shimane University Faculty of Medicine, Izumo, Japan
| | - Eiki Ichihara
- Center for Clinical Oncology, Okayama University Hospital, Okayama, Japan
| | - Toshiyuki Kozuki
- Department of Thoracic Oncology and Medicine, National Hospital Organization Shikoku Cancer Center, Matsuyama, Japan
| | - Hiroyasu Shoda
- Department of Respiratory Medicine, Hiroshima City Hiroshima Citizens Hospital, Hiroshima, Japan
| | - Masanori Motonaga
- Clinical Research Center in Hiroshima University Hospital, Hiroshima, Japan
| | - Takako Yoshida
- Clinical Research Center in Hiroshima University Hospital, Hiroshima, Japan
| | - Miki Fukutani
- Clinical Research Center in Hiroshima University Hospital, Hiroshima, Japan
| | - Kazue Tsuji-Takayama
- Research Strategy and Promotion Division in Hiroshima University, Hiroshima, Japan
| | - Atsushi Tamura
- Clinical Research Center in Hiroshima University Hospital, Hiroshima, Japan
| | - Harunobu Amagase
- Clinical Research Center in Hiroshima University Hospital, Hiroshima, Japan
| | - Hideki Fujihara
- Clinical Research Center in Hiroshima University Hospital, Hiroshima, Japan
| | - Gaku Aoki
- Clinical Research Center in Hiroshima University Hospital, Hiroshima, Japan
| | - Tomoyuki Akita
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate school of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Yasushi Orihashi
- Clinical Research Center in Hiroshima University Hospital, Hiroshima, Japan
| | - Toshio Miyata
- Department of Molecular Medicine and Therapy, United Centers for Advanced Research and Translational Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Noboru Hattori
- Department of Molecular and Internal Medicine, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
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Ibrahim AA, Fujimura T, Uno T, Terada T, Hirano KI, Hosokawa H, Ohta A, Miyata T, Ando K, Yahata T. Plasminogen activator inhibitor-1 promotes immune evasion in tumors by facilitating the expression of programmed cell death-ligand 1. Front Immunol 2024; 15:1365894. [PMID: 38779680 PMCID: PMC11109370 DOI: 10.3389/fimmu.2024.1365894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Accepted: 04/23/2024] [Indexed: 05/25/2024] Open
Abstract
Background Increased levels of plasminogen activator inhibitor-1 (PAI-1) in tumors have been found to correlate with poor clinical outcomes in patients with cancer. Although abundant data support the involvement of PAI-1 in cancer progression, whether PAI-1 contributes to tumor immune surveillance remains unclear. The purposes of this study are to determine whether PAI-1 regulates the expression of immune checkpoint molecules to suppresses the immune response to cancer and demonstrate the potential of PAI-1 inhibition for cancer therapy. Methods The effects of PAI-1 on the expression of the immune checkpoint molecule programmed cell death ligand 1 (PD-L1) were investigated in several human and murine tumor cell lines. In addition, we generated tumor-bearing mice and evaluated the effects of a PAI-1 inhibitor on tumor progression or on the tumor infiltration of cells involved in tumor immunity either alone or in combination with immune checkpoint inhibitors. Results PAI-1 induces PD-L1 expression through the JAK/STAT signaling pathway in several types of tumor cells and surrounding cells. Blockade of PAI-1 impedes PD-L1 induction in tumor cells, significantly reducing the abundance of immunosuppressive cells at the tumor site and increasing cytotoxic T-cell infiltration, ultimately leading to tumor regression. The anti-tumor effect elicited by the PAI-1 inhibitor is abolished in immunodeficient mice, suggesting that PAI-1 blockade induces tumor regression by stimulating the immune system. Moreover, combining a PAI-1 inhibitor with an immune checkpoint inhibitor significantly increases tumor regression. Conclusions PAI-1 protects tumors from immune surveillance by increasing PD-L1 expression; hence, therapeutic PAI-1 blockade may prove valuable in treating malignant tumors.
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Affiliation(s)
- Abd Aziz Ibrahim
- Translational Molecular Therapeutics Laboratory, Division of Host Defense Mechanism, Tokai University School of Medicine, Kanagawa, Japan
| | - Taku Fujimura
- Department of Dermatology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Tomoko Uno
- Department of Hematology and Oncology, Tokai University School of Medicine, Kanagawa, Japan
| | - Tomoya Terada
- Translational Molecular Therapeutics Laboratory, Division of Host Defense Mechanism, Tokai University School of Medicine, Kanagawa, Japan
| | - Ken-ichi Hirano
- Department of Immunology, Tokai University School of Medicine, Kanagawa, Japan
| | - Hiroyuki Hosokawa
- Department of Immunology, Tokai University School of Medicine, Kanagawa, Japan
| | - Akio Ohta
- Department of Immunology, Institute of Biomedical Research and Innovation, Foundation for Biomedical Research and Innovation at Kobe, Kobe, Japan
| | - Toshio Miyata
- Department of Molecular Medicine and Therapy, United Centers for Advanced Research and Translational Medicine, Tohoku University Graduate School of Medicine, Miyagi, Japan
| | - Kiyoshi Ando
- Department of Hematology and Oncology, Tokai University School of Medicine, Kanagawa, Japan
| | - Takashi Yahata
- Translational Molecular Therapeutics Laboratory, Division of Host Defense Mechanism, Tokai University School of Medicine, Kanagawa, Japan
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Polo-Generelo S, Rodríguez-Mateo C, Torres B, Pintor-Tortolero J, Guerrero-Martínez JA, König J, Vázquez J, Bonzón-Kulichenco E, Padillo-Ruiz J, de la Portilla F, Reyes JC, Pintor-Toro JA. Serpine1 mRNA confers mesenchymal characteristics to the cell and promotes CD8+ T cells exclusion from colon adenocarcinomas. Cell Death Discov 2024; 10:116. [PMID: 38448406 PMCID: PMC10917750 DOI: 10.1038/s41420-024-01886-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 02/20/2024] [Accepted: 02/23/2024] [Indexed: 03/08/2024] Open
Abstract
Serine protease inhibitor clade E member 1 (SERPINE1) inhibits extracellular matrix proteolysis and cell detachment. However, SERPINE1 expression also promotes tumor progression and plays a crucial role in metastasis. Here, we solve this apparent paradox and report that Serpine1 mRNA per se, independent of its protein-coding function, confers mesenchymal properties to the cell, promoting migration, invasiveness, and resistance to anoikis and increasing glycolytic activity by sequestering miRNAs. Expression of Serpine1 mRNA upregulates the expression of the TRA2B splicing factor without affecting its mRNA levels. Through transcriptional profiling, we found that Serpine1 mRNA expression downregulates through TRA2B the expression of genes involved in the immune response. Analysis of human colon tumor samples showed an inverse correlation between SERPINE1 mRNA expression and CD8+ T cell infiltration, unveiling the potential value of SERPINE1 mRNA as a promising therapeutic target for colon tumors.
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Affiliation(s)
- Salvador Polo-Generelo
- Department of Cell Signaling, Centro Andaluz de Biología Molecular y Medicina Regenerativa (CABIMER-CSIC), 41092, Sevilla, Spain
| | - Cristina Rodríguez-Mateo
- Department of Cell Signaling, Centro Andaluz de Biología Molecular y Medicina Regenerativa (CABIMER-CSIC), 41092, Sevilla, Spain
| | - Belén Torres
- Department of Cell Signaling, Centro Andaluz de Biología Molecular y Medicina Regenerativa (CABIMER-CSIC), 41092, Sevilla, Spain
| | - José Pintor-Tortolero
- Colorectal Surgery Unit, Department of General and Digestive Surgery, Virgen del Rocío University Hospital, IBIS, CSIC, University of Sevilla, Sevilla, Spain
| | - José A Guerrero-Martínez
- Department of Cell Signaling, Centro Andaluz de Biología Molecular y Medicina Regenerativa (CABIMER-CSIC), 41092, Sevilla, Spain
| | - Julian König
- Institute of Molecular Biology (IMB), Ackermannweg 4, 55128, Mainz, Germany
| | - Jesús Vázquez
- Cardiovascular Proteomics, Centro Nacional de Investigaciones Cardiovasculares (CNIC), 28029, Madrid, Spain
| | - Elena Bonzón-Kulichenco
- Facultad de Ciencias Ambientales y Bioquímica, Universidad de Castilla-La Mancha, Toledo, Spain
| | - Javier Padillo-Ruiz
- Hepatobiliary Surgery Unit, Department of General and Digestive Surgery, Virgen del Rocío University Hospital, IBIS, CSIC, University of Sevilla, Sevilla, Spain
| | - Fernando de la Portilla
- Colorectal Surgery Unit, Department of General and Digestive Surgery, Virgen del Rocío University Hospital, IBIS, CSIC, University of Sevilla, Sevilla, Spain
| | - José C Reyes
- Department of Cell Signaling, Centro Andaluz de Biología Molecular y Medicina Regenerativa (CABIMER-CSIC), 41092, Sevilla, Spain
| | - José A Pintor-Toro
- Department of Cell Signaling, Centro Andaluz de Biología Molecular y Medicina Regenerativa (CABIMER-CSIC), 41092, Sevilla, Spain.
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4
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Qian C, Ito N, Tsuji K, Sato S, Kikuchi K, Yoshii T, Miyata T, Asou Y. A PAI-1 antagonist ameliorates hypophosphatemia in the Hyp vitamin D-resistant rickets model mouse. FEBS Open Bio 2024; 14:290-299. [PMID: 38050660 PMCID: PMC10839342 DOI: 10.1002/2211-5463.13745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 11/20/2023] [Accepted: 12/04/2023] [Indexed: 12/06/2023] Open
Abstract
Congenital fibroblast growth factor 23 (FGF23)-related hypophosphatemic rickets/osteomalacia is a rare bone metabolism disorder characterized by hypophosphatemia and caused by genetic abnormalities that result in excessive secretion of FGF23. Hyp mice are a model of X-linked hypophosphatemia (XLH) caused by deletion of the PHEX gene and excessive production of FGF23. The purpose of this study was to investigate the potential of TM5614 as a therapeutic agent for the treatment of congenital FGF23-related hypophosphatemic rickets and osteomalacia in humans by administering TM5614 to Hyp mice and examining its curative effect on hypophosphatemia. After a single oral administration of TM5614 10 mg·kg-1 to female Hyp mice starting at 17 weeks of age, the serum phosphate concentration increased with a peak at 6 h after administration. ELISA confirmed that TM5614 administration decreased the intact FGF23 concentration in the blood. Expression of 25-hydroxyvitamin D-1α-hydroxylase protein encoded by Cyp27b1 mRNA in the kidney was suppressed in Hyp mice, and treatment with 10 mg·kg-1 of TM5614 normalized the expression of 25-hydroxyvitamin D-1α-hydroxylase protein and Cyp27b1 mRNA in the kidneys of these mice. Our data indicate that oral administration of TM5614 ameliorates hypophosphatemia in Hyp mice, suggesting that TM5614 may be an effective treatment for congenital FGF23-related hypophosphatemic rickets and osteomalacia.
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Affiliation(s)
- Cheng Qian
- Department of Orthopedics SurgeryTokyo Medical and Dental UniversityJapan
| | - Nobuaki Ito
- Division of Nephrology and EndocrinologyThe University of Tokyo HospitalJapan
| | - Kunikazu Tsuji
- Department of Orthopedics SurgeryTokyo Medical and Dental UniversityJapan
| | - Shingo Sato
- Department of Orthopedics SurgeryTokyo Medical and Dental UniversityJapan
| | - Katsushi Kikuchi
- Department of Orthopedics SurgeryTokyo Medical and Dental UniversityJapan
| | - Toshitaka Yoshii
- Department of Orthopedics SurgeryTokyo Medical and Dental UniversityJapan
| | - Toshio Miyata
- United Centers for Advanced Research and Translational MedicineTohoku UniversitySendaiJapan
| | - Yoshinori Asou
- Department of Orthopedics SurgeryTokyo Medical and Dental UniversityJapan
- China‐Japan Friendship Institution of MedicineShanghai UniversityChina
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5
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Shibeko AM, Ilin IS, Podoplelova NA, Sulimov VB, Panteleev MA. Chemical Adjustment of Fibrinolysis. Pharmaceuticals (Basel) 2024; 17:92. [PMID: 38256925 PMCID: PMC10819531 DOI: 10.3390/ph17010092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 12/31/2023] [Accepted: 01/05/2024] [Indexed: 01/24/2024] Open
Abstract
Fibrinolysis is the process of the fibrin-platelet clot dissolution initiated after bleeding has been stopped. It is regulated by a cascade of proteolytic enzymes with plasmin at its core. In pathological cases, the balance of normal clot formation and dissolution is replaced by a too rapid lysis, leading to bleeding, or an insufficient one, leading to an increased thrombotic risk. The only approved therapy for emergency thrombus lysis in ischemic stroke is recombinant tissue plasminogen activator, though streptokinase or urokinase-type plasminogen activators could be used for other conditions. Low molecular weight compounds are of great interest for long-term correction of fibrinolysis dysfunctions. Their areas of application might go beyond the hematology field because the regulation of fibrinolysis could be important in many conditions, such as fibrosis. They enhance or weaken fibrinolysis without significant effects on other components of hemostasis. Here we will describe and discuss the main classes of these substances and their mechanisms of action. We will also explore avenues of research for the development of new drugs, with a focus on the use of computational models in this field.
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Affiliation(s)
- Alexey M. Shibeko
- Center for Theoretical Problems of Physicochemical Pharmacology, Russian Academy of Sciences, 109029 Moscow, Russia; (A.M.S.); (M.A.P.)
- National Medical Research Center of Pediatric Hematology, Oncology and Immunology Named after Dmitry Rogachev, 117197 Moscow, Russia
| | - Ivan S. Ilin
- Research Computing Center, Lomonosov Moscow State University, 119991 Moscow, Russia; (I.S.I.); (V.B.S.)
- Dimonta, Ltd., 117186 Moscow, Russia
| | - Nadezhda A. Podoplelova
- Center for Theoretical Problems of Physicochemical Pharmacology, Russian Academy of Sciences, 109029 Moscow, Russia; (A.M.S.); (M.A.P.)
- National Medical Research Center of Pediatric Hematology, Oncology and Immunology Named after Dmitry Rogachev, 117197 Moscow, Russia
| | - Vladimir B. Sulimov
- Research Computing Center, Lomonosov Moscow State University, 119991 Moscow, Russia; (I.S.I.); (V.B.S.)
- Dimonta, Ltd., 117186 Moscow, Russia
| | - Mikhail A. Panteleev
- Center for Theoretical Problems of Physicochemical Pharmacology, Russian Academy of Sciences, 109029 Moscow, Russia; (A.M.S.); (M.A.P.)
- National Medical Research Center of Pediatric Hematology, Oncology and Immunology Named after Dmitry Rogachev, 117197 Moscow, Russia
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6
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Hirai T, Asano K, Ito I, Miyazaki Y, Sugiura H, Agirbasli M, Kobayashi S, Kobayashi M, Shimada D, Natsume I, Kawasaki T, Ohba T, Tajiri S, Sakamaki F, Mineshita M, Takihara T, Sekiya K, Tomii K, Tomioka H, Kita H, Nishizaka Y, Fukui M, Miyata T, Harigae H. A randomized double-blind placebo-controlled trial of an inhibitor of plasminogen activator inhibitor-1 (TM5614) in mild to moderate COVID-19. Sci Rep 2024; 14:165. [PMID: 38168544 PMCID: PMC10761996 DOI: 10.1038/s41598-023-50445-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 12/20/2023] [Indexed: 01/05/2024] Open
Abstract
An inhibitor of plasminogen activator inhibitor (PAI)-1, TM5614, inhibited thrombosis, inflammation, and fibrosis in several experimental mouse models. To evaluate the efficacy and safety of TM5614 in human COVID-19 pneumonia, phase IIa and IIb trials were conducted. In an open-label, single-arm trial, 26 Japanese COVID-19 patients with mild to moderate pneumonia were treated with 120-180 mg of TM5614 daily, and all were discharged without any notable side effects. Then, a randomized, double-blind, placebo-controlled trial was conducted in Japanese COVID-19 patients with mild to moderate pneumonia. The number of study participants was set to be 50 in each arm. Even after extension of the enrollment period, the number of study participants did not reach the initially intended sample size, and 75 patients were enrolled in the study. The total oxygenation scale from Day 1 to Day 14 as the primary endpoint was 1.5 in the TM5614 group vs 4.0 in the placebo group (p = 0.22), and the number of days of oxygen administration required as the secondary endpoint was 2.0 days in the TM5614 group vs 3.5 days in the placebo group (p = 0.34). Further studies will be necessary to verify the efficacy of PAI-1 inhibition for the treatment of COVID-19 pneumonia.Clinical trial registration: Two studies were conducted: a prospective, multicenter, open-label phase II study at https://jrct.niph.go.jp (jRCT2021200018) (First registration date 18/08/2020) and a prospective, multicenter, randomized, double-blind, placebo-controlled, phase II study at https://jrct.niph.go.jp (jRCT2021210006) (First registration date 28/05/2021).
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Affiliation(s)
- Toyohiro Hirai
- Department of Respiratory Medicine, Kyoto University Graduate School of Medicine, 54 Shogoin-Kawaharacho, Sakyo, Kyoto, 606-8507, Japan.
| | - Koichiro Asano
- Division of Pulmonary Medicine, Department of Medicine, Tokai University School of Medicine, Kanagawa, Japan
| | - Isao Ito
- Department of Respiratory Medicine, Kyoto University Graduate School of Medicine, 54 Shogoin-Kawaharacho, Sakyo, Kyoto, 606-8507, Japan
| | - Yasunari Miyazaki
- Department of Respiratory Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Hisatoshi Sugiura
- Department of Respiratory Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Mehmet Agirbasli
- Department of Cardiology, Istanbul Medeniyet University Hospital TR, Istanbul, Turkey
| | - Seiichi Kobayashi
- Department of Respiratory Medicine, Japanese Red Cross Ishinomaki Hospital, Ishinomaki, Japan
| | - Makoto Kobayashi
- Department of Respiratory Medicine, Osaki Citizen Hospital, Osaki, Japan
| | - Daishi Shimada
- Department of Infectious Disease Medicine, Tohoku Medical and Pharmaceutical University, Sendai, Japan
| | - Ichiro Natsume
- Department of Respiratory Internal Medicine, Yokosuka Kyosai Hospital, Yokosuka, Japan
| | - Tsutomu Kawasaki
- Department of Respiratory Medicine, Yokohama City Minato Red Cross Hospital, Yokohama, Japan
| | - Takehiko Ohba
- Department of Respiratory Medicine, Ome Municipal General Hospital, Ome, Japan
| | - Sakurako Tajiri
- Department of Respiratory Medicine, Tokai University Oiso Hospital, Oiso, Japan
| | - Fumio Sakamaki
- Department of Respiratory Medicine, Tokai University Hachioji Hospital, Hachioji, Japan
| | - Masamichi Mineshita
- Department of Respiratory Medicine, St. Marianna University School of Medicine, Kawasaki, Japan
| | - Takahisa Takihara
- Department of Respiratory Medicine, Ebina General Hospital, Ebina, Japan
| | - Kiyoshi Sekiya
- Department of Allergy and Respiratory Medicine, National Organization Sagamihara National Hospital, Sagamihara, Japan
| | - Keisuke Tomii
- Department of Respiratory Medicine, Kobe City Medical Center General Hospital, Kobe, Japan
| | - Hiromi Tomioka
- Department of Respiratory Medicine, Kobe City Medical Center West Hospital, Kobe, Japan
| | - Hideo Kita
- Department of Respiratory Medicine, Takatsuki Red Cross Hospital, Takatsuki, Japan
| | - Yasuo Nishizaka
- Department of Respiratory Medicine, Osaka Red Cross Hospital, Osaka, Japan
| | - Motonari Fukui
- Department of Respiratory Medicine, Medical Research Institute Kitano Hospital, Osaka, Japan
| | - Toshio Miyata
- Department of Molecular Medicine and Therapy, Tohoku University Graduate School of Medicine, 2-1 Seiryo-Machi, Aoba-Ku, Sendai, Miyagi, 980-8575, Japan.
| | - Hideo Harigae
- Department of Hematology, Tohoku University Graduate School of Medicine, Sendai, Japan
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Wang B, Gu B, Zhang T, Li X, Wang N, Ma C, Xiang L, Wang Y, Gao L, Yu Y, Song K, He P, Wang Y, Zhu J, Chen H. Good or bad: Paradox of plasminogen activator inhibitor 1 (PAI-1) in digestive system tumors. Cancer Lett 2023; 559:216117. [PMID: 36889376 DOI: 10.1016/j.canlet.2023.216117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 02/17/2023] [Accepted: 03/02/2023] [Indexed: 03/08/2023]
Abstract
The fibrinolytic system is involved in many physiological functions, among which the important members can interact with each other, either synergistically or antagonistically to participate in the pathogenesis of many diseases. Plasminogen activator inhibitor 1 (PAI-1) acts as a crucial element of the fibrinolytic system and functions in an anti-fibrinolytic manner in the normal coagulation process. It inhibits plasminogen activator, and affects the relationship between cells and extracellular matrix. PAI-1 not only involved in blood diseases, inflammation, obesity and metabolic syndrome but also in tumor pathology. Especially PAI-1 plays a different role in different digestive tumors as an oncogene or cancer suppressor, even a dual role for the same cancer. We term this phenomenon "PAI-1 paradox". PAI-1 is acknowledged to have both uPA-dependent and -independent effects, and its different actions can result in both beneficial and adverse consequences. Therefore, this review will elaborate on PAI-1 structure, the dual value of PAI-1 in different digestive system tumors, gene polymorphisms, the uPA-dependent and -independent mechanisms of regulatory networks, and the drugs targeted by PAI-1 to deepen the comprehensive understanding of PAI-1 in digestive system tumors.
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Affiliation(s)
- Bofang Wang
- Lanzhou University Second Hospital, Lanzhou, Gansu, China
| | - Baohong Gu
- Lanzhou University Second Hospital, Lanzhou, Gansu, China
| | - Tao Zhang
- The First Hospital of Lanzhou University, Lanzhou, Gansu, China
| | - Xuemei Li
- Lanzhou University Second Hospital, Lanzhou, Gansu, China
| | - Na Wang
- Lanzhou University Second Hospital, Lanzhou, Gansu, China
| | - Chenhui Ma
- Lanzhou University Second Hospital, Lanzhou, Gansu, China
| | - Lin Xiang
- Lanzhou University Second Hospital, Lanzhou, Gansu, China
| | - Yunpeng Wang
- Lanzhou University Second Hospital, Lanzhou, Gansu, China
| | - Lei Gao
- Lanzhou University Second Hospital, Lanzhou, Gansu, China
| | - Yang Yu
- Lanzhou University Second Hospital, Lanzhou, Gansu, China
| | - Kewei Song
- Lanzhou University Second Hospital, Lanzhou, Gansu, China
| | - Puyi He
- Lanzhou University Second Hospital, Lanzhou, Gansu, China
| | - Yueyan Wang
- Lanzhou University Second Hospital, Lanzhou, Gansu, China
| | - Jingyu Zhu
- Lanzhou University Second Hospital, Lanzhou, Gansu, China
| | - Hao Chen
- Lanzhou University Second Hospital, Lanzhou, Gansu, China; Key Laboratory of Digestive System Tumors of Gansu Province, Lanzhou, Gansu, China; Department of Surgical Oncology, Lanzhou University Second Hospital, Lanzhou, Gansu, China.
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8
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Glucocorticoid-Responsive Tissue Plasminogen Activator (tPA) and Its Inhibitor Plasminogen Activator Inhibitor-1 (PAI-1): Relevance in Stress-Related Psychiatric Disorders. Int J Mol Sci 2023; 24:ijms24054496. [PMID: 36901924 PMCID: PMC10003592 DOI: 10.3390/ijms24054496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 02/21/2023] [Accepted: 02/22/2023] [Indexed: 03/02/2023] Open
Abstract
Stressful events trigger a set of complex biological responses which follow a bell-shaped pattern. Low-stress conditions have been shown to elicit beneficial effects, notably on synaptic plasticity together with an increase in cognitive processes. In contrast, overly intense stress can have deleterious behavioral effects leading to several stress-related pathologies such as anxiety, depression, substance use, obsessive-compulsive and stressor- and trauma-related disorders (e.g., post-traumatic stress disorder or PTSD in the case of traumatic events). Over a number of years, we have demonstrated that in response to stress, glucocorticoid hormones (GCs) in the hippocampus mediate a molecular shift in the balance between the expression of the tissue plasminogen activator (tPA) and its own inhibitor plasminogen activator inhibitor-1 (PAI-1) proteins. Interestingly, a shift in favor of PAI-1 was responsible for PTSD-like memory induction. In this review, after describing the biological system involving GCs, we highlight the key role of tPA/PAI-1 imbalance observed in preclinical and clinical studies associated with the emergence of stress-related pathological conditions. Thus, tPA/PAI-1 protein levels could be predictive biomarkers of the subsequent onset of stress-related disorders, and pharmacological modulation of their activity could be a potential new therapeutic approach for these debilitating conditions.
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9
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Takahashi N, Kameoka Y, Onizuka M, Onishi Y, Takahashi F, Dan T, Miyata T, Ando K, Harigae H. Deep molecular response in patients with chronic phase chronic myeloid leukemia treated with the plasminogen activator inhibitor-1 inhibitor TM5614 combined with a tyrosine kinase inhibitor. Cancer Med 2023; 12:4250-4258. [PMID: 36151699 PMCID: PMC9972105 DOI: 10.1002/cam4.5292] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 08/27/2022] [Accepted: 09/13/2022] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND We recently showed that pharmacological inhibition of plasminogen activator inhibitor-1 (PAI-1) activity, based on TM5614, increases cell motility and induces the detachment of hematopoietic stem cells from their niches. In this TM5614 phase II clinical trial, we investigated whether the combination of a PAI-1 inhibitor and tyrosine kinase inhibitors (TKIs) would induce a deep molecular response (DMR) in patients affected by chronic myeloid leukemia (CML) by quantifying BCR-ABL1 transcripts. METHODS Patients with chronic phase CML treated with a stable daily dose of TKIs for at least 1 year and yielding a major molecular response (MMR) but not achieving MR4.5 were eligible for this study. After inclusion, patients began to receive TM5614 as well as a TKI. The primary objective was an evaluation of the cumulative incidence of patient progression from an MMR/MR4 to MR4.5 by 12 months. RESULTS Thirty-three patients were enrolled in the study. The median age was 59.0 years and 58% were male. No Sokal high-risk patients were enrolled in this trial. The median TKI treatment duration was 4.8 years. At the start of this study, seven patients and 26 patients received imatinib and second-generation TKIs, respectively. The cumulative MR4.5 incidence by 12 months was 33.3% (95% confidence interval, 18.0%-51.8%). The cumulative MR4.5 spontaneous conversion over 12 months was estimated as 8% with TKIs alone based on historical controls. The halving time of BCR-ABL1 at 2 months was significantly shorter for patients who achieved an MR4.5 , by 12 months than for the other patients (cutoff value: 48 days; sensitivity: 0.80; specificity: 0.91; ROC-AUC: 0.83). During this study, bleeding events and abnormal coagulation related to the drug were not reported, and TM5614 was found to be highly safe. CONCLUSION TM5614 combined with TKI was well tolerated and induced MR4.5 in more patients than stand-alone TKI treatment.
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Affiliation(s)
| | | | | | | | | | | | | | - Kiyoshi Ando
- Tokai University School of Medicine, Isehara, Japan
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10
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Torrente D, Su EJ, Fredriksson L, Warnock M, Bushart D, Mann KM, Emal CD, Lawrence DA. Compartmentalized Actions of the Plasminogen Activator Inhibitors, PAI-1 and Nsp, in Ischemic Stroke. Transl Stroke Res 2022; 13:801-815. [PMID: 35122213 PMCID: PMC9349468 DOI: 10.1007/s12975-022-00992-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 11/22/2021] [Accepted: 01/26/2022] [Indexed: 02/08/2023]
Abstract
Tissue plasminogen activator (tPA) is a multifunctional protease. In blood tPA is best understood for its role in fibrinolysis, whereas in the brain tPA is reported to regulate blood-brain barrier (BBB) function and to promote neurodegeneration. Thrombolytic tPA is used for the treatment of ischemic stroke. However, its use is associated with an increased risk of hemorrhagic transformation. In blood the primary regulator of tPA activity is plasminogen activator inhibitor 1 (PAI-1), whereas in the brain, its primary inhibitor is thought to be neuroserpin (Nsp). In this study, we compare the effects of PAI-1 and Nsp deficiency in a mouse model of ischemic stroke and show that tPA has both beneficial and harmful effects that are differentially regulated by PAI-1 and Nsp. Following ischemic stroke Nsp deficiency in mice leads to larger strokes, increased BBB permeability, and increased spontaneous intracerebral hemorrhage. In contrast, PAI-1 deficiency results in smaller infarcts and increased cerebral blood flow recovery. Mechanistically, our data suggests that these differences are largely due to the compartmentalized action of PAI-1 and Nsp, with Nsp deficiency enhancing tPA activity in the CNS which increases BBB permeability and worsens stroke outcomes, while PAI-1 deficiency enhances fibrinolysis and improves recovery. Finally, we show that treatment with a combination therapy that enhances endogenous fibrinolysis by inhibiting PAI-1 with MDI-2268 and reduces BBB permeability by inhibiting tPA-mediated PDGFRα signaling with imatinib significantly reduces infarct size compared to vehicle-treated mice and to mice with either treatment alone.
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Affiliation(s)
- Daniel Torrente
- Department of Molecular and Integrative Physiology, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Enming Joseph Su
- Department of Internal Medicine, Division of Cardiovascular Medicine, University of Michigan Medical School, 7301 MSRB III, 1150 W. Medical Center Dr, Ann Arbor, MI, 48109-0644, USA
| | - Linda Fredriksson
- Biomedicum, Karolinska Institute, Solnavägen 9, Quarter 6D, 17165, Solna, Sweden
| | - Mark Warnock
- Department of Internal Medicine, Division of Cardiovascular Medicine, University of Michigan Medical School, 7301 MSRB III, 1150 W. Medical Center Dr, Ann Arbor, MI, 48109-0644, USA
| | - David Bushart
- Department of Internal Medicine, Division of Cardiovascular Medicine, University of Michigan Medical School, 7301 MSRB III, 1150 W. Medical Center Dr, Ann Arbor, MI, 48109-0644, USA
- Current affiliation: Ohio State University College of Medicine, Columbus, OH, USA
| | - Kris M Mann
- Department of Internal Medicine, Division of Cardiovascular Medicine, University of Michigan Medical School, 7301 MSRB III, 1150 W. Medical Center Dr, Ann Arbor, MI, 48109-0644, USA
| | - Cory D Emal
- Department of Chemistry, Eastern Michigan University, Ypsilanti, MI, 48197, USA
| | - Daniel A Lawrence
- Department of Molecular and Integrative Physiology, University of Michigan Medical School, Ann Arbor, MI, USA.
- Department of Internal Medicine, Division of Cardiovascular Medicine, University of Michigan Medical School, 7301 MSRB III, 1150 W. Medical Center Dr, Ann Arbor, MI, 48109-0644, USA.
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11
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Li X, Guo T, Feng Q, Bai T, Wu L, Liu Y, Zheng X, Jia J, Pei J, Wu S, Song Y, Zhang Y. Progress of thrombus formation and research on the structure-activity relationship for antithrombotic drugs. Eur J Med Chem 2022; 228:114035. [PMID: 34902735 DOI: 10.1016/j.ejmech.2021.114035] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2021] [Revised: 11/11/2021] [Accepted: 11/30/2021] [Indexed: 01/07/2023]
Abstract
Many populations suffer from thrombotic disorders such as stroke, myocardial infarction, unstable angina and thromboembolic disease. Thrombus is one of the major threatening factors to human health and the prevalence of cardio-cerebrovascular diseases induced by thrombus is growing worldwide, even some persons got rare and severe blood clots after receiving the AstraZeneca COVID vaccine unexpectedly. In terms of mechanism of thrombosis, antithrombotic drugs have been divided into three categories including anticoagulants, platelet inhibitors and fibrinolytics. Nowadays, a large number of new compounds possessing antithrombotic activities are emerging in an effort to remove the inevitable drawbacks of previously approved drugs such as the high risk of bleeding, a slow onset of action and a narrow therapeutic window. In this review, we describe the causes and mechanisms of thrombus formation firstly, and then summarize these reported active compounds as potential antithrombotic candidates based on their respective mechanism, hoping to promote the development of more effective bioactive molecules for treating thrombotic disorders.
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Affiliation(s)
- Xiaoan Li
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Biomedicine Key Laboratory of Shaanxi Province, Northwest University, Xi'an, 710069, China; Pharmacy College, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Tiantian Guo
- College of Food Science and Technology, Northwest University, Xi'an, 710069, China
| | - Qian Feng
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Biomedicine Key Laboratory of Shaanxi Province, Northwest University, Xi'an, 710069, China
| | - Tiantian Bai
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Biomedicine Key Laboratory of Shaanxi Province, Northwest University, Xi'an, 710069, China
| | - Lei Wu
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Biomedicine Key Laboratory of Shaanxi Province, Northwest University, Xi'an, 710069, China
| | - Yubo Liu
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Biomedicine Key Laboratory of Shaanxi Province, Northwest University, Xi'an, 710069, China
| | - Xu Zheng
- Shaanxi Institute for Food and Drug, Xi'an, 710000, China
| | - Jianzhong Jia
- Shaanxi Institute for Food and Drug, Xi'an, 710000, China
| | - Jin Pei
- Pharmacy College, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Shaoping Wu
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Biomedicine Key Laboratory of Shaanxi Province, Northwest University, Xi'an, 710069, China.
| | - Yiming Song
- School of Chemical Engineering, Northwest University, 229 Taibai Road, Xi'an, Shaanxi, 710069, China.
| | - Yongmin Zhang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Biomedicine Key Laboratory of Shaanxi Province, Northwest University, Xi'an, 710069, China; Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, UMR 8232, 4 Place Jussieu, 75005, Paris, France
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12
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Kietsiriroje N, Ariëns RAS, Ajjan RA. Fibrinolysis in Acute and Chronic Cardiovascular Disease. Semin Thromb Hemost 2021; 47:490-505. [PMID: 33878782 DOI: 10.1055/s-0040-1718923] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The formation of an obstructive thrombus within an artery remains a major cause of mortality and morbidity worldwide. Despite effective inhibition of platelet function by modern antiplatelet therapies, these agents fail to fully eliminate atherothrombotic risk. This may well be related to extensive vascular disease, beyond the protective abilities of the treatment agents used. However, recent evidence suggests that residual vascular risk in those treated with modern antiplatelet therapies is related, at least in part, to impaired fibrin clot lysis. In this review, we attempt to shed more light on the role of hypofibrinolysis in predisposition to arterial vascular events. We provide a brief overview of the coagulation system followed by addressing the role of impaired fibrin clot lysis in acute and chronic vascular conditions, including coronary artery, cerebrovascular, and peripheral vascular disease. We also discuss the role of combined anticoagulant and antiplatelet therapies to reduce the risk of arterial thrombotic events, addressing both efficacy and safety of such an approach. We conclude that impaired fibrin clot lysis appears to contribute to residual thrombosis risk in individuals with arterial disease on antiplatelet therapy, and targeting proteins in the fibrinolytic system represents a viable strategy to improve outcome in this population. Future work is required to refine the antithrombotic approach by modulating pathological abnormalities in the fibrinolytic system and tailoring therapy according to the need of each individual.
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Affiliation(s)
- Noppadol Kietsiriroje
- Department of Metabolic Medicine, Leeds Institute of Cardiovascular and Metabolic Medicine, Faculty of Medicine and Health, University of Leeds, Leeds, United Kingdom.,Endocrinology and Metabolism Unit, Department of Internal Medicine, Faculty of Medicine, Prince of Songkla University, Hatyai, Songkhla, Thailand
| | - Robert A S Ariëns
- Department of Metabolic Medicine, Leeds Institute of Cardiovascular and Metabolic Medicine, Faculty of Medicine and Health, University of Leeds, Leeds, United Kingdom
| | - Ramzi A Ajjan
- Department of Metabolic Medicine, Leeds Institute of Cardiovascular and Metabolic Medicine, Faculty of Medicine and Health, University of Leeds, Leeds, United Kingdom
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13
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Sillen M, Miyata T, Vaughan DE, Strelkov SV, Declerck PJ. Structural Insight into the Two-Step Mechanism of PAI-1 Inhibition by Small Molecule TM5484. Int J Mol Sci 2021; 22:ijms22031482. [PMID: 33540702 PMCID: PMC7867230 DOI: 10.3390/ijms22031482] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 01/27/2021] [Accepted: 01/29/2021] [Indexed: 01/19/2023] Open
Abstract
Plasminogen activator inhibitor-1 (PAI-1), a key regulator of the fibrinolytic system, is the main physiological inhibitor of plasminogen activators. By interacting with matrix components, including vitronectin (Vn), PAI-1 plays a regulatory role in tissue remodeling, cell migration, and intracellular signaling. Emerging evidence points to a role for PAI-1 in various pathological conditions, including cardiovascular diseases, cancer, and fibrosis. Targeting PAI-1 is therefore a promising therapeutic strategy in PAI-1-related pathologies. A class of small molecule inhibitors including TM5441 and TM5484, designed to bind the cleft in the central β-sheet A of PAI-1, showed to be potent PAI-1 inhibitors in vivo. However, their binding site has not yet been confirmed. Here, we report two X-ray crystallographic structures of PAI-1 in complex with TM5484. The structures revealed a binding site at the flexible joint region, which is distinct from the presumed binding site. Based on the structural analysis and biochemical data we propose a mechanism for the observed dose-dependent two-step mechanism of PAI-1 inhibition. By binding to the flexible joint region in PAI-1, TM5484 might restrict the structural flexibility of this region, thereby inducing a substrate form of PAI-1 followed by a conversion to an inert form.
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Affiliation(s)
- Machteld Sillen
- Laboratory for Therapeutic and Diagnostic Antibodies, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, B-3000 Leuven, Belgium;
| | - Toshio Miyata
- Department of Molecular Medicine and Therapy, United Centers for Advanced Research and Translational Medicine, Tohoku University Graduate School of Medicine, Sendai 980-8577, Japan;
| | - Douglas E. Vaughan
- Department of Medicine, Feinberg Cardiovascular Research Institute, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA;
| | - Sergei V. Strelkov
- Laboratory for Biocrystallography, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, B-3000 Leuven, Belgium;
| | - Paul J. Declerck
- Laboratory for Therapeutic and Diagnostic Antibodies, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, B-3000 Leuven, Belgium;
- Correspondence:
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14
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Yahata T, Ibrahim AA, Hirano KI, Muguruma Y, Naka K, Hozumi K, Vaughan DE, Miyata T, Ando K. Targeting of plasminogen activator inhibitor-1 activity promotes elimination of chronic myeloid leukemia stem cells. Haematologica 2021; 106:483-494. [PMID: 32001531 PMCID: PMC7849585 DOI: 10.3324/haematol.2019.230227] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2019] [Accepted: 01/24/2020] [Indexed: 12/12/2022] Open
Abstract
Therapeutic strategies that target leukemic stem cells (LSC) provide potential advantages in the treatment of chronic myeloid leukemia (CML). Here we showed that selective blockade of plasminogen activator inhibitor-1 (PAI-1) enhances the susceptibility of CML-LSC to tyrosine kinase inhibitor (TKI), which facilitates the eradication of CML-LSC and leads to sustained remission of the disease. We demonstrated for the first time that the TGF-−PAI-1 axis was selectively augmented in CMLLSC in the bone marrow (BM), thereby protecting CML-LSC from TKI treatment. Furthermore, the combined administration of the TKI imatib plus a PAI-1 inhibitor, in a mouse model of CML, significantly enhanced the eradication of CML cells in the BM and prolonged the survival of CML mice. The combined therapy of imatinib and a PAI-1 inhibitor prevented the recurrence of CML-like disease in serially transplanted recipients, indicating the elimination of CML-LSC. Interestingly, PAI-1 inhibitor treatment augmented membrane-type matrix metalloprotease-1 (MT1-MMP)-dependent motility of CML-LSC, and the anti-CML effect of PAI-1 inhibitor was extinguished by the neutralizing antibody for MT1-MMP, underlining the mechanistic importance of MT1-MMP. Our findings provide evidence of, and a rationale for, a novel therapeutic tactic, based on the blockade of PAI- 1 activity, for CML patients.
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15
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Bianchini EP, Auditeau C, Razanakolona M, Vasse M, Borgel D. Serpins in Hemostasis as Therapeutic Targets for Bleeding or Thrombotic Disorders. Front Cardiovasc Med 2021; 7:622778. [PMID: 33490121 PMCID: PMC7817699 DOI: 10.3389/fcvm.2020.622778] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Accepted: 12/10/2020] [Indexed: 11/13/2022] Open
Abstract
Bleeding and thrombotic disorders result from imbalances in coagulation or fibrinolysis, respectively. Inhibitors from the serine protease inhibitor (serpin) family have a key role in regulating these physiological events, and thus stand out as potential therapeutic targets for modulating fibrin clot formation or dismantling. Here, we review the diversity of serpin-targeting strategies in the area of hemostasis, and detail the suggested use of modified serpins and serpin inhibitors (ranging from small-molecule drugs to antibodies) to treat or prevent bleeding or thrombosis.
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Affiliation(s)
- Elsa P Bianchini
- HITh, UMR_S1176, Institut National de la Santé et de la Recherche Médicale, Université Paris-Saclay, Le Kremlin-Bicêtre, France
| | - Claire Auditeau
- HITh, UMR_S1176, Institut National de la Santé et de la Recherche Médicale, Université Paris-Saclay, Le Kremlin-Bicêtre, France
| | - Mahita Razanakolona
- HITh, UMR_S1176, Institut National de la Santé et de la Recherche Médicale, Université Paris-Saclay, Le Kremlin-Bicêtre, France
| | - Marc Vasse
- HITh, UMR_S1176, Institut National de la Santé et de la Recherche Médicale, Université Paris-Saclay, Le Kremlin-Bicêtre, France.,Service de Biologie Clinique, Hôpital Foch, Suresnes, France
| | - Delphine Borgel
- HITh, UMR_S1176, Institut National de la Santé et de la Recherche Médicale, Université Paris-Saclay, Le Kremlin-Bicêtre, France.,Laboratoire d'Hématologie Biologique, Hôpital Necker, APHP, Paris, France
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16
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Aihemaiti A, Yamamoto N, Piao J, Oyaizu T, Ochi H, Sato S, Okawa A, Miyata T, Tsuji K, Ezura Y, Asou Y. A novel PAI-1 inhibitor prevents ageing-related muscle fiber atrophy. Biochem Biophys Res Commun 2020; 534:849-856. [PMID: 33213843 DOI: 10.1016/j.bbrc.2020.10.089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 10/29/2020] [Indexed: 11/30/2022]
Abstract
Sarcopenia is among the most common medical problems of the aging population worldwide and a major social concern. Here, we explored the therapeutic potential of TM5484, a novel orally available PAI-1 inhibitor, to prevent sarcopenia. The sarcopenic phenotypes of the calf muscle of 12- and 6-month-old middle-aged mice were compared. Although significant decline of isometric gastrocnemius muscle force was detected in the older untreated mice, those administered TM5484 had significantly greater calf muscle force, as determined using isometric measurements by electrical stimulation. Histological analysis indicated that cross-sectional gastrocnemius muscle fibers in untreated older mice were thinner than those in younger mice; however, TM5484-treated group showed thicker fibers than younger mice. Treatment with TM5484 for 6 months enhanced Igf1, Atrogin-1, Mt-Co1, and Chrna1 mRNA expression in the mice gastrocnemius muscle, with increased serum IGF-1 concentration. TM5484 induced dose-dependent Igf1, Atrogin-1, and Chrna1 expression in C2C12 myoblastic cells, confirming cell autonomous effect. Further, the presence of plasmin for 72 h caused significantly increased Igf1 expression in C2C12 cells. These findings suggest that oral PAI-1 inhibitors represent a promising therapeutic candidate for preventing sarcopenia progression in humans.
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Affiliation(s)
- Aidehamu Aihemaiti
- Department of Orthopaedics Surgery, Tokyo Medical and Dental University, Japan
| | - Naoki Yamamoto
- Department of Orthopaedics Surgery, Tokyo Medical and Dental University, Japan
| | - Jinying Piao
- Department of Orthopaedics Surgery, Tokyo Medical and Dental University, Japan
| | - Takuya Oyaizu
- Hyperbaric Medical Center, Tokyo Medical and Dental University, Japan
| | - Hiroki Ochi
- Department of Rehabilitation for Movement Functions, National Rehabilitation Center for Persons with Disabilities, Japan
| | - Shingo Sato
- Department of Orthopaedics Surgery, Tokyo Medical and Dental University, Japan
| | - Atsushi Okawa
- Department of Orthopaedics Surgery, Tokyo Medical and Dental University, Japan
| | - Toshio Miyata
- Department of Molecular Medicine and Therapy, United Centers for Advanced Research and Translational Medicine, Tohoku University Graduate School of Medicine, Japan
| | - Kunikazu Tsuji
- Department of Cartilage Regeneration, Tokyo Medical and Dental University, Japan
| | - Yoichi Ezura
- Department of Orthopaedics Surgery, Tokyo Medical and Dental University, Japan
| | - Yoshinori Asou
- Department of Nano-Bioscience, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Japan.
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17
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Rossi Sebastiano M, Pozzato C, Saliakoura M, Yang Z, Peng RW, Galiè M, Oberson K, Simon HU, Karamitopoulou E, Konstantinidou G. ACSL3-PAI-1 signaling axis mediates tumor-stroma cross-talk promoting pancreatic cancer progression. SCIENCE ADVANCES 2020; 6:6/44/eabb9200. [PMID: 33127675 PMCID: PMC7608806 DOI: 10.1126/sciadv.abb9200] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Accepted: 09/15/2020] [Indexed: 05/16/2023]
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is characterized by marked fibrosis and low immunogenicity, features that are linked to treatment resistance and poor clinical outcomes. Therefore, understanding how PDAC regulates the desmoplastic and immune stromal components is of great clinical importance. We found that acyl-CoA synthetase long-chain 3 (ACSL3) is up-regulated in PDAC and correlates with increased fibrosis. Our in vivo results show that Acsl3 knockout hinders PDAC progression, markedly reduces tumor fibrosis and tumor-infiltrating immunosuppressive cells, and increases cytotoxic T cell infiltration. This effect is, at least in part, due to decreased plasminogen activator inhibitor-1 (PAI-1) secretion from tumor cells. Accordingly, PAI-1 expression in PDAC positively correlates with markers of fibrosis and immunosuppression and predicts poor patient survival. We found that PAI-1 pharmacological inhibition strongly enhances chemo- and immunotherapeutic response against PDAC, increasing survival of mice. Thus, our results unveil ACSL3-PAI-1 signaling as a requirement for PDAC progression with druggable attributes.
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Affiliation(s)
| | - Chiara Pozzato
- Institute of Pharmacology, University of Bern, 3010 Bern, Switzerland
| | - Maria Saliakoura
- Institute of Pharmacology, University of Bern, 3010 Bern, Switzerland
| | - Zhang Yang
- Division of General Thoracic Surgery, Inselspital, Bern University Hospital, 3008 Bern, Switzerland
| | - Ren-Wang Peng
- Division of General Thoracic Surgery, Inselspital, Bern University Hospital, 3008 Bern, Switzerland
| | - Mirco Galiè
- Department of Neuroscience, Biomedicine and Movement, University of Verona, 37134 Verona, Italy
| | - Kevin Oberson
- Institute of Pharmacology, University of Bern, 3010 Bern, Switzerland
| | - Hans-Uwe Simon
- Institute of Pharmacology, University of Bern, 3010 Bern, Switzerland
- Department of Clinical Immunology and Allergology, Sechenov University, Moscow, Russia
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18
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PAI-1, the Plasminogen System, and Skeletal Muscle. Int J Mol Sci 2020; 21:ijms21197066. [PMID: 32993026 PMCID: PMC7582753 DOI: 10.3390/ijms21197066] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 09/21/2020] [Accepted: 09/23/2020] [Indexed: 12/14/2022] Open
Abstract
The plasminogen system is a critical proteolytic system responsible for the remodeling of the extracellular matrix (ECM). The master regulator of the plasminogen system, plasminogen activator inhibitor-1 (PAI-1), has been implicated for its role in exacerbating various disease states not only through the accumulation of ECM (i.e., fibrosis) but also its role in altering cell fate/behaviour. Examination of PAI-1 has extended through various tissues and cell-types with recent investigations showing its presence in skeletal muscle. In skeletal muscle, the role of this protein has been implicated throughout the regeneration process, and in skeletal muscle pathologies (muscular dystrophy, diabetes, and aging-driven pathology). Needless to say, the complete function of this protein in skeletal muscle has yet to be fully elucidated. Given the importance of skeletal muscle in maintaining overall health and quality of life, it is critical to understand the alterations—particularly in PAI-1—that occur to negatively impact this organ. Thus, we provide a comprehensive review of the importance of PAI-1 in skeletal muscle health and function. We aim to shed light on the relevance of this protein in skeletal muscle and propose potential therapeutic approaches to aid in the maintenance of skeletal muscle health.
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19
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Kashiwagi R, Sato R, Masumoto M, Yoshino M, Tanaka H. AS3288802, a highly selective antibody to active plasminogen activator inhibitor-1 (PAI-1), exhibits long efficacy duration in cynomolgus monkeys. Biologicals 2020; 67:21-28. [PMID: 32828642 DOI: 10.1016/j.biologicals.2020.08.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Revised: 07/26/2020] [Accepted: 08/03/2020] [Indexed: 10/23/2022] Open
Abstract
Antibodies have strong affinity to their target molecules, a characteristic that is utilized in antibody drugs. For antibody drugs, target molecule specificity and long duration pharmacokinetics, along with strong affinity to the target molecule are important characteristics. Plasminogen activator inhibitor-1 (PAI-1) is one of the key regulators of the fibrinolysis system, and the benefits of PAI-1 activity inhibition have been widely reported for multiple thrombosis and fibrosis-related diseases. Here, we generated a novel antibody, AS3288802, with high selectivity for active PAI-1. AS3288802 exhibited prolonged and strong inhibition of PAI-1 activity in cynomolgus monkey blood in vivo. Given that AS3288802 showed prolonged antigen inhibition activity due to its high target molecule selectivity, we propose that increasing target molecule selectivity may be a key strategy for lengthening the efficacy duration of antibody drugs. AS3288802 may be a promising anti-PAI-1 antibody drug with multiple clinical applications including thrombosis and fibrosis-related diseases.
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Affiliation(s)
- Risa Kashiwagi
- Astellas Pharma Inc., 2-5-1, Nihonbashi-Honcho, Chuo-ku, Tokyo, 103-8411
| | - Rui Sato
- Astellas Pharma Inc., 2-5-1, Nihonbashi-Honcho, Chuo-ku, Tokyo, 103-8411
| | - Mari Masumoto
- Astellas Pharma Inc., 2-5-1, Nihonbashi-Honcho, Chuo-ku, Tokyo, 103-8411
| | - Masayasu Yoshino
- Astellas Pharma Inc., 2-5-1, Nihonbashi-Honcho, Chuo-ku, Tokyo, 103-8411
| | - Hirotsugu Tanaka
- Astellas Innovation Management LLC, 1030 Massachusetts Avenue, Cambridge, MA, 02138, United States.
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20
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Sillen M, Weeks SD, Strelkov SV, Declerck PJ. Structural Insights into the Mechanism of a Nanobody That Stabilizes PAI-1 and Modulates Its Activity. Int J Mol Sci 2020; 21:ijms21165859. [PMID: 32824134 PMCID: PMC7461574 DOI: 10.3390/ijms21165859] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Revised: 08/11/2020] [Accepted: 08/13/2020] [Indexed: 11/16/2022] Open
Abstract
Plasminogen activator inhibitor-1 (PAI-1) is the main physiological inhibitor of tissue-type (tPA) and urokinase-type (uPA) plasminogen activators (PAs). Apart from being critically involved in fibrinolysis and wound healing, emerging evidence indicates that PAI-1 plays an important role in many diseases, including cardiovascular disease, tissue fibrosis, and cancer. Targeting PAI-1 is therefore a promising therapeutic strategy in PAI-1 related pathologies. Despite ongoing efforts no PAI-1 inhibitors were approved to date for therapeutic use in humans. A better understanding of the molecular mechanisms of PAI-1 inhibition is therefore necessary to guide the rational design of PAI-1 modulators. Here, we present a 1.9 Å crystal structure of PAI-1 in complex with an inhibitory nanobody VHH-s-a93 (Nb93). Structural analysis in combination with biochemical characterization reveals that Nb93 directly interferes with PAI-1/PA complex formation and stabilizes the active conformation of the PAI-1 molecule.
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Affiliation(s)
- Machteld Sillen
- Laboratory for Therapeutic and Diagnostic Antibodies, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, B-3000 Leuven, Belgium;
| | - Stephen D. Weeks
- Laboratory for Biocrystallography, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, B-3000 Leuven, Belgium; (S.D.W); (S.V.S.)
| | - Sergei V. Strelkov
- Laboratory for Biocrystallography, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, B-3000 Leuven, Belgium; (S.D.W); (S.V.S.)
| | - Paul J. Declerck
- Laboratory for Therapeutic and Diagnostic Antibodies, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, B-3000 Leuven, Belgium;
- Correspondence:
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21
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Noguchi R, Kaji K, Namisaki T, Moriya K, Kawaratani H, Kitade M, Takaya H, Aihara Y, Douhara A, Asada K, Nishimura N, Miyata T, Yoshiji H. Novel oral plasminogen activator inhibitor‑1 inhibitor TM5275 attenuates hepatic fibrosis under metabolic syndrome via suppression of activated hepatic stellate cells in rats. Mol Med Rep 2020; 22:2948-2956. [PMID: 32945412 PMCID: PMC7453658 DOI: 10.3892/mmr.2020.11360] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Accepted: 07/03/2020] [Indexed: 02/07/2023] Open
Abstract
An orally bioavailable small molecule inhibitor of plasminogen activator inhibitor-1 (PAI-1) is currently being clinically assessed as a novel antithrombotic agent. Although PAI-1 is known to serve a key role in the pathogenesis of metabolic syndrome (MetS) including nonalcoholic steatohepatitis (NASH), the pharmacological action of an oral PAI-1 inhibitor against the development of MetS-related liver fibrosis remains unclear. The current study was designed to explicate the effect of TM5275, an oral PAI-1 inhibitor, on MetS-related hepatic fibrogenesis. The in vivo antifibrotic effect of orally administered TM5275 was investigated in two different rat MetS models. Fischer 344 rats received a choline-deficient L-amino-acid-defined diet for 12 weeks to induce steatohepatitis with development of severe hepatic fibrosis. Otsuka Long-Evans Tokushima Fatty rats, used to model congenital diabetes, underwent intraperitoneal injection of porcine serum for 6 weeks to induce hepatic fibrosis under diabetic conditions. In each experimental model, TM5275 markedly ameliorated the development of hepatic fibrosis and suppressed the proliferation of activated hepatic stellate cells (HSCs). Additionally, the hepatic production of tumor growth factor (TGF)-β1 and total collagen was suppressed. In vitro assays revealed that TGF-β1 stimulated the upregulation of Serpine1 mRNA expression, which was inhibited by TM5275 treatment in cultured HSC-T6 cells, a rat HSC cell line. Furthermore, TM5275 substantially attenuated the TGF-β1-stimulated proliferative and fibrogenic activity of HSCs by inhibiting AKT phosphorylation. Collectively, TM5275 demonstrated an antifibrotic effect on liver fibrosis in different rat MetS models, suppressing TGF-β1-induced HSC proliferation and collagen synthesis. Thus, PAI-1 inhibitors may serve as effective future therapeutic agents against NASH-based hepatic fibrosis.
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Affiliation(s)
- Ryuichi Noguchi
- Department of Gastroenterology, Nara Medical University, Kashihara, Nara 634‑8522, Japan
| | - Kosuke Kaji
- Department of Gastroenterology, Nara Medical University, Kashihara, Nara 634‑8522, Japan
| | - Tadashi Namisaki
- Department of Gastroenterology, Nara Medical University, Kashihara, Nara 634‑8522, Japan
| | - Kei Moriya
- Department of Gastroenterology, Nara Medical University, Kashihara, Nara 634‑8522, Japan
| | - Hideto Kawaratani
- Department of Gastroenterology, Nara Medical University, Kashihara, Nara 634‑8522, Japan
| | - Mitsuteru Kitade
- Department of Gastroenterology, Nara Medical University, Kashihara, Nara 634‑8522, Japan
| | - Hiroaki Takaya
- Department of Gastroenterology, Nara Medical University, Kashihara, Nara 634‑8522, Japan
| | - Yosuke Aihara
- Department of Gastroenterology, Nara Medical University, Kashihara, Nara 634‑8522, Japan
| | - Akitoshi Douhara
- Department of Gastroenterology, Nara Medical University, Kashihara, Nara 634‑8522, Japan
| | - Kiyoshi Asada
- Department of Gastroenterology, Nara Medical University, Kashihara, Nara 634‑8522, Japan
| | - Norihisa Nishimura
- Department of Gastroenterology, Nara Medical University, Kashihara, Nara 634‑8522, Japan
| | - Toshio Miyata
- United Centers for Advanced Research and Translational Medicine, Tohoku University Graduate School of Medicine, Sendai, Miyagi 980‑8575, Japan
| | - Hitoshi Yoshiji
- Department of Gastroenterology, Nara Medical University, Kashihara, Nara 634‑8522, Japan
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22
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Ito K. Effect of water-extractive components from funazushi, a fermented crucian carp, on the activity of fibrinolytic factors. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2020; 100:2482-2487. [PMID: 31960427 DOI: 10.1002/jsfa.10269] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Revised: 01/14/2020] [Accepted: 01/21/2020] [Indexed: 06/10/2023]
Abstract
BACKGROUND Japanese fermented foods, including funazushi, have have been studied insufficiently. Related research into fermented products has led to the hope that they might have positive effects on blood circulation, including anti-thrombosis effects. The possible antithrombotic effects of funazushi on the fibrinolytic system were examined. RESULTS The administration of extracts from funazushi increased the activity of plasmin and tissue plasminogen activators in the fibrinolytic system but decreased the activity of plasminogen activator inhibitor type-1 (PAI-1). This decrease was positively correlated with the decreased plasma triglyceride levels. Funazushi extract directly inhibited PAI-1 activity in vitro despite alimentary enzyme digestion, although direct PAI-1 inhibition was not observed in an extract from salted crucian carp. CONCLUSION These results suggest that funazushi extracts are closely involved in the antithrombotic effects of the fibrinolytic system, and that they exert their effect through a reduction in PAI-1 activity. The findings also indicate that fermentation processing is necessary to achieve the antithrombotic effects of funazushi. © 2020 Society of Chemical Industry.
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Affiliation(s)
- Koji Ito
- Department of Marine Bioscience, Fukui Prefectural University, Obama, Japan
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23
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Sillen M, Weeks SD, Zhou X, Komissarov AA, Florova G, Idell S, Strelkov SV, Declerck PJ. Molecular mechanism of two nanobodies that inhibit PAI-1 activity reveals a modulation at distinct stages of the PAI-1/plasminogen activator interaction. J Thromb Haemost 2020; 18:681-692. [PMID: 31858714 PMCID: PMC8855783 DOI: 10.1111/jth.14716] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Revised: 12/06/2019] [Accepted: 12/06/2019] [Indexed: 11/26/2022]
Abstract
BACKGROUND Plasminogen activator inhibitor-1 (PAI-1), a key inhibitor of plasminogen activators (PAs) tissue-type PA (tPA) and urokinase-type PA (uPA) plays a crucial role in many (patho)physiological processes (e.g., cardiovascular disease, tissue fibrosis) as well as in many age-related pathologies. Therefore, much effort has been put into the development of small molecule or antibody-based PAI-1 inhibitors. OBJECTIVE To elucidate the molecular mechanism of nanobody-induced PAI-1 inhibition. METHODS AND RESULTS Here we present the first crystal structures of PAI-1 in complex with two neutralizing nanobodies (Nbs). These structures, together with biochemical and biophysical characterization, reveal that Nb VHH-2g-42 (Nb42) interferes with the initial PAI-1/PA complex formation, whereas VHH-2w-64 (Nb64) redirects the PAI-1/PA interaction to PAI-1 deactivation and regeneration of active PA. Furthermore, whereas vitronectin does not have an impact on the inhibitory effect of Nb42, it strongly potentiates the inhibitory effect of Nb64, which may contribute to a strong inhibitory potential of Nb64 in vivo. CONCLUSIONS These findings illuminate the molecular mechanisms of PAI-1 inhibition. Nb42 and Nb64 can be used as starting points to engineer further improved antibody-based PAI-1 inhibitors or guide the rational design of small molecule inhibitors to treat a wide range of PAI-1-related pathophysiological conditions.
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Affiliation(s)
- Machteld Sillen
- Laboratory for Therapeutic and Diagnostic Antibodies, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Leuven, Belgium
| | - Stephen D. Weeks
- Laboratory for Biocrystallography, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Leuven, Belgium
| | - Xiaohua Zhou
- Laboratory for Therapeutic and Diagnostic Antibodies, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Leuven, Belgium
| | - Andrey A. Komissarov
- Department of Cellular and Molecular Biology, The University of Texas Health Science Center, Tyler, TX, USA
| | - Galina Florova
- Department of Cellular and Molecular Biology, The University of Texas Health Science Center, Tyler, TX, USA
| | - Steven Idell
- Department of Cellular and Molecular Biology, The University of Texas Health Science Center, Tyler, TX, USA
| | - Sergei V. Strelkov
- Laboratory for Biocrystallography, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Leuven, Belgium
| | - Paul J. Declerck
- Laboratory for Therapeutic and Diagnostic Antibodies, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Leuven, Belgium
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Akhter H, Huang WT, van Groen T, Kuo HC, Miyata T, Liu RM. A Small Molecule Inhibitor of Plasminogen Activator Inhibitor-1 Reduces Brain Amyloid-β Load and Improves Memory in an Animal Model of Alzheimer's Disease. J Alzheimers Dis 2019; 64:447-457. [PMID: 29914038 DOI: 10.3233/jad-180241] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Alzheimer's disease (AD) is a major cause of dementia in the elderly with no effective treatment. Accumulation of amyloid-β peptide (Aβ) in the brain is a pathological hallmark of AD and is believed to be a central disease-causing and disease-promoting event. In a previous study, we showed that deletion of plasminogen activator inhibitor 1 (PAI-1), a primary inhibitor of tissue type and urokinase type plasminogen activators (tPA and uPA), significantly reduced brain Aβ load in APP/PS1 mice, an animal model of familial AD. In this study, we further show that oral administration of TM5275, a small molecule inhibitor of PAI-1, for a period of 6 weeks, inhibits the activity of PAI-1 and increases the activities of tPA and uPA as well as plasmin, which is associated with a reduction of Aβ load in the hippocampus and cortex and improvement of learning/memory function in APP/PS1 mice. Protein abundance of low density lipoprotein related protein-1 (LRP-1), a multi ligand endocytotic receptor involved in transporting Aβ out of the brain, as well as plasma Aβ42 are increased, whereas the expression and processing of full-length amyloid-β protein precursor is not affected by TM5275 treatment in APP/PS1 mice. In vitro studies further show that PAI-1 increases, whereas TM5275 reduces, Aβ40 level in the culture medium of SHSY5Y-APP neuroblastoma cells. Collectively, our data suggest that TM5275 improves memory function of APP/PS1 mice, probably by reducing brain Aβ accumulation through increasing plasmin-mediated degradation and LRP-1-mediated efflux of Aβ in the brain.
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Affiliation(s)
- Hasina Akhter
- Department of Environmental Health Sciences, School of Public Health, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Wen-Tan Huang
- Department of Environmental Health Sciences, School of Public Health, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Thomas van Groen
- Department of Cell, Developmental and Integrative Biology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Hui-Chien Kuo
- Department of Biostatistics, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Toshio Miyata
- United Centers for Advanced Research and Translational Medicine, Tohoku University, Tohoku, Japan
| | - Rui-Ming Liu
- Department of Environmental Health Sciences, School of Public Health, University of Alabama at Birmingham, Birmingham, AL, USA.,Division of Pulmonary, Allergy, and Critical Care Medicine, School of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
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25
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Ibrahim AA, Yahata T, Muguruma Y, Miyata T, Ando K. Blockade of plasminogen activator inhibitor-1 empties bone marrow niche sufficient for donor hematopoietic stem cell engraftment without myeloablative conditioning. Biochem Biophys Res Commun 2019; 516:500-505. [PMID: 31230745 DOI: 10.1016/j.bbrc.2019.06.076] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Revised: 06/12/2019] [Accepted: 06/15/2019] [Indexed: 12/21/2022]
Abstract
Upon hematopoietic stem cell transplantation (HSCT), the availability of recipients' niches in the bone marrow (BM) is one of the factors that influence donor HSC engraftment and hematopoietic reconstitution. Therefore, myeloablative conditioning, such as irradiation and/or chemotherapy, which creates empty niches in the recipients' BM, is required for the success of HSCT. However, the conventional myeloablation causes extensive damages to the patients' BM, which results in the treatment-induced severe complications and even mortality. Thus, alternative and mild conditioning could fulfill the need for safer HSCT-based therapies for hematological and nonhematological disorders. Recently, we have demonstrated that pharmacological inhibition of plasminogen activator inhibitor-1 (PAI-1) activity increases cellular motility and cause detachment of HSCs from the niches. In this study, we performed HSCT using a PAI-1 inhibitor without any myeloablative conditioning. Donor HSCs were transplanted to recipient mice that were pretreated with saline or a PAI-1 inhibitor. Saline pretreated nonmyeloablative recipients showed no engraftment. In contrast, donor cell engraftment was detected in the PAI-1 inhibitor pretreated recipients. Multilineage differentiation, including lymphoid and myeloid cells, was observed in the PAI-1 inhibitor pretreated recipients. Donor-derived cells that exhibited multilineage reconstitution as well as the existence of stem/progenitor cells were detected in the secondary recipients, confirming the maintenance of donor HSCs in the BM of PAI-1 inhibitor pretreated primary recipients. The results indicate that the PAI-1 blockade vacates functional niches in the recipients' BM, which allows the engraftment of long-term multilineage HSCs without myeloablative conditioning.
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Affiliation(s)
- Abd Aziz Ibrahim
- Research Center for Regenerative Medicine, Tokai University School of Medicine, Kanagawa, 259-1193, Japan; Department of Hematology and Oncology, Tokai University School of Medicine, Kanagawa, 259-1193, Japan
| | - Takashi Yahata
- Research Center for Regenerative Medicine, Tokai University School of Medicine, Kanagawa, 259-1193, Japan; Department of Innovative Medical Science, Tokai University School of Medicine, Kanagawa, 259-1193, Japan.
| | - Yukari Muguruma
- National Cancer Center Research Institute, Tokyo, 104-0045, Japan
| | - Toshio Miyata
- United Centers for Advanced Research and Translational Medicine, Tohoku University Graduate School of Medicine, Miyagi, 980-8575, Japan
| | - Kiyoshi Ando
- Research Center for Regenerative Medicine, Tokai University School of Medicine, Kanagawa, 259-1193, Japan; Department of Hematology and Oncology, Tokai University School of Medicine, Kanagawa, 259-1193, Japan
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26
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Ren Q, Mohri K, Warashina S, Wada Y, Watanabe Y, Mukai H. Improved Immuno-PET Imaging of HER2-Positive Tumors in Mice: Urokinase Injection-Triggered Clearance Enhancement of 64Cu-Trastuzumab. Mol Pharm 2019; 16:1065-1073. [DOI: 10.1021/acs.molpharmaceut.8b01052] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Qin Ren
- Molecular Network Control Imaging Unit, RIKEN Center for Life Science Technologies, 6-7-3 Minatojima-Minamimachi, Chuo-ku, Kobe, Hyogo 650-0047, Japan
- Laboratory for Molecular Delivery and Imaging Technology, RIKEN Center for Biosystems Dynamics Research, 6-7-3 Minatojima-Minamimachi, Chuo-ku, Kobe, Hyogo 650-0047, Japan
| | - Kohta Mohri
- Molecular Network Control Imaging Unit, RIKEN Center for Life Science Technologies, 6-7-3 Minatojima-Minamimachi, Chuo-ku, Kobe, Hyogo 650-0047, Japan
- Laboratory for Molecular Delivery and Imaging Technology, RIKEN Center for Biosystems Dynamics Research, 6-7-3 Minatojima-Minamimachi, Chuo-ku, Kobe, Hyogo 650-0047, Japan
| | - Shota Warashina
- Molecular Network Control Imaging Unit, RIKEN Center for Life Science Technologies, 6-7-3 Minatojima-Minamimachi, Chuo-ku, Kobe, Hyogo 650-0047, Japan
- Laboratory for Molecular Delivery and Imaging Technology, RIKEN Center for Biosystems Dynamics Research, 6-7-3 Minatojima-Minamimachi, Chuo-ku, Kobe, Hyogo 650-0047, Japan
| | - Yasuhiro Wada
- Pathophysiological and Health Science Team, RIKEN Center for Life Science Technologies, 6-7-3 Minatojima-Minamimachi, Chuo-ku, Kobe, Hyogo 650-0047, Japan
- Laboratory for Pathophysiological and Health Science, RIKEN Center for Biosystems Dynamics Research, 6-7-3 Minatojima-Minamimachi, Chuo-ku, Kobe, Hyogo 650-0047, Japan
| | - Yasuyoshi Watanabe
- Pathophysiological and Health Science Team, RIKEN Center for Life Science Technologies, 6-7-3 Minatojima-Minamimachi, Chuo-ku, Kobe, Hyogo 650-0047, Japan
- Laboratory for Pathophysiological and Health Science, RIKEN Center for Biosystems Dynamics Research, 6-7-3 Minatojima-Minamimachi, Chuo-ku, Kobe, Hyogo 650-0047, Japan
| | - Hidefumi Mukai
- Molecular Network Control Imaging Unit, RIKEN Center for Life Science Technologies, 6-7-3 Minatojima-Minamimachi, Chuo-ku, Kobe, Hyogo 650-0047, Japan
- Laboratory for Molecular Delivery and Imaging Technology, RIKEN Center for Biosystems Dynamics Research, 6-7-3 Minatojima-Minamimachi, Chuo-ku, Kobe, Hyogo 650-0047, Japan
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Reinke AA, Li SH, Warnock M, Shaydakov ME, Guntaka NS, Su EJ, Diaz JA, Emal CD, Lawrence DA. Dual-reporter high-throughput screen for small-molecule in vivo inhibitors of plasminogen activator inhibitor type-1 yields a clinical lead candidate. J Biol Chem 2018; 294:1464-1477. [PMID: 30510136 DOI: 10.1074/jbc.ra118.004885] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Revised: 11/30/2018] [Indexed: 12/15/2022] Open
Abstract
Plasminogen activator inhibitor type-1 (PAI-1) is a serine protease inhibitor (serpin) implicated in numerous pathological processes, including coronary heart disease, arterial and venous thrombosis, and chronic fibrotic diseases. These associations have made PAI-1 an attractive pharmaceutical target. However, the complexity of the serpin inhibitory mechanism, the inherent metastability of serpins, and the high-affinity association of PAI-1 with vitronectin in vivo have made it difficult to identify pharmacologically effective small-molecule inhibitors. Moreover, the majority of current small-molecule PAI-1 inhibitors are poor pharmaceutical candidates. To this end and to find leads that can be efficiently applied to in vivo settings, we developed a dual-reporter high-throughput screen (HTS) that reduced the rate of nonspecific and promiscuous hits and identified leads that inhibit human PAI-1 in the high-protein environments present in vivo Using this system, we screened >152,000 pure compounds and 27,000 natural product extracts (NPEs), reducing the apparent hit rate by almost 10-fold compared with previous screening approaches. Furthermore, screening in a high-protein environment permitted the identification of compounds that retained activity in both ex vivo plasma and in vivo Following lead identification, subsequent medicinal chemistry and structure-activity relationship (SAR) studies identified a lead clinical candidate, MDI-2268, having excellent pharmacokinetics, potent activity against vitronectin-bound PAI-1 in vivo, and efficacy in a murine model of venous thrombosis. This rigorous HTS approach eliminates promiscuous candidate leads, significantly accelerates the process of identifying PAI-1 inhibitors that can be rapidly deployed in vivo, and has enabled identification of a potent lead compound.
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Affiliation(s)
- Ashley A Reinke
- Division of Cardiovascular Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan 48109
| | - Shih-Hon Li
- Department of Pathology, University of Michigan, Ann Arbor, Michigan 48109
| | - Mark Warnock
- Division of Cardiovascular Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan 48109
| | - Maxim E Shaydakov
- Section of Vascular Surgery, Department of Surgery, University of Michigan, Ann Arbor, Michigan 48109
| | | | - Enming J Su
- Division of Cardiovascular Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan 48109
| | - Jose A Diaz
- Section of Vascular Surgery, Department of Surgery, University of Michigan, Ann Arbor, Michigan 48109
| | - Cory D Emal
- Department of Chemistry, Eastern Michigan University, Ypsilanti, Michigan 48197
| | - Daniel A Lawrence
- Division of Cardiovascular Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan 48109.
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Shin S, Kim MK, Jung W, Chong Y. (-)-Epigallocatechin gallate derivatives reduce the expression of both urokinase plasminogen activator and plasminogen activator inhibitor-1 to inhibit migration, adhesion, and invasion of MDA-MB-231 cells. Phytother Res 2018; 32:2086-2096. [PMID: 30009577 DOI: 10.1002/ptr.6154] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Revised: 06/16/2018] [Accepted: 06/18/2018] [Indexed: 01/02/2023]
Abstract
Urokinase plasminogen activator (uPA) and its inhibitor plasminogen activator inhibitor-1 (PAI-1) are established independent biomarkers for high metastasis risk in breast cancer. In this study, we investigated the regulatory activity of (-)-epigallocatechin-3-gallate (EGCG) and its derivatives on uPA and PAI-1 expression and thereby their anti-metastatic potential. EGCG showed only marginal effects on the uPA system and on the metastatic behavior of breast cancer cells (MDA-MB-231). However, the EGCG derivative 3e with a methyl-substituted carbonate substituent at the 4″-position showed potent inhibition of PAI-1 (62%) and uPA (50%) expression. The Ras-extracellular-signal-regulated kinase (ERK), p38 mitogen-activated protein kinase (MAPK), and phosphatidylinositol-3-kinase (PI3K)/Akt/NF-κB pathways, which regulate uPA and PAI-1 expression, were also affected by 3e (25%, 45%, and 25% reduction, respectively). In line with these findings, substantial reduction in metastatic behavior of MDA-MB-231 cells, such as adhesion (40%), invasion (56%), and migration (40%), was observed in the presence of 3e. It is also noteworthy that, in MDA-MB-231 cells, 3e did not exert any beneficial effect on the expression of matric metalloprotein (MMP) 2 and 9, which indicates that the anti-metastatic activity of 3e in MDA-MB-231 cells is not related to its regulation of the expression of MMPs. Taken together, we have shown that the EGCG derivative 3e could suppress the metastatic behavior of MDA-MB-231 cells through regulation of uPA and PAI-1.
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Affiliation(s)
- Sunhye Shin
- Department of Integrative Bioscience and Biotechnology, Bio/Molecular Informatics Center, Konkuk University, Seoul, Korea
| | - Mi Kyoung Kim
- Department of Integrative Bioscience and Biotechnology, Bio/Molecular Informatics Center, Konkuk University, Seoul, Korea
| | - Woong Jung
- Department of Emergency Medicine, Kyung Hee University Hospital at Gangdong, Seoul, Korea
| | - Youhoon Chong
- Department of Integrative Bioscience and Biotechnology, Bio/Molecular Informatics Center, Konkuk University, Seoul, Korea
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Schuliga M, Grainge C, Westall G, Knight D. The fibrogenic actions of the coagulant and plasminogen activation systems in pulmonary fibrosis. Int J Biochem Cell Biol 2018; 97:108-117. [PMID: 29474926 DOI: 10.1016/j.biocel.2018.02.016] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Revised: 02/16/2018] [Accepted: 02/19/2018] [Indexed: 12/27/2022]
Abstract
Fibrosis causes irreversible damage to lung structure and function in restrictive lung diseases such as idiopathic pulmonary fibrosis (IPF). Extravascular coagulation involving fibrin formation in the intra-alveolar compartment is postulated to have a pivotal role in the development of pulmonary fibrosis, serving as a provisional matrix for migrating fibroblasts. Furthermore, proteases of the coagulation and plasminogen activation (plasminergic) systems that form and breakdown fibrin respectively directly contribute to pulmonary fibrosis. The coagulants, thrombin and factor Xa (FXa) evoke fibrogenic effects via cleavage of the N-terminus of protease-activated receptors (PARs). Whilst the formation and activity of plasmin, the principle plasminergic mediator is suppressed in the airspaces of patients with IPF, localized increases are likely to occur in the lung interstitium. Plasmin-evoked proteolytic activation of factor XII (FXII), matrix metalloproteases (MMPs) and latent, matrix-bound growth factors such as epidermal growth factor (EGF) indirectly implicate plasmin in pulmonary fibrosis. Another plasminergic protease, urokinase plasminogen activator (uPA) is associated with regions of fibrosis in the remodelled lung of IPF patients and elicits fibrogenic activity via binding its receptor (uPAR). Plasminogen activator inhibitor-1 (PAI-1) formed in the injured alveolar epithelium also contributes to pulmonary fibrosis in a manner that involves vitronectin binding. This review describes the mechanisms by which components of the two systems primarily involved in fibrin homeostasis contribute to interstitial fibrosis, with a particular focus on IPF. Selectively targeting the receptor-mediated mechanisms of coagulant and plasminergic proteases may limit pulmonary fibrosis, without the bleeding complications associated with conventional anti-coagulant and thrombolytic therapies.
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Affiliation(s)
- Michael Schuliga
- School of Biomedical Sciences and Pharmacy, University of Newcastle, Callaghan, New South Wales, Australia; Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, New Lambton Heights, New South Wales, Australia.
| | - Christopher Grainge
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, New Lambton Heights, New South Wales, Australia; School of Medicine and Public Health, University of Newcastle, Callaghan, New South Wales, Australia
| | - Glen Westall
- Allergy, Immunology and Respiratory Medicine, Alfred Hospital, Prahran, Victoria, Australia
| | - Darryl Knight
- School of Biomedical Sciences and Pharmacy, University of Newcastle, Callaghan, New South Wales, Australia; Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, New Lambton Heights, New South Wales, Australia; Department of Anesthesiology, Pharmacology and Therapeutics, University of British Columbia, Canada
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Jin G, Aobulikasimu A, Piao J, Aibibula Z, Koga D, Sato S, Ochi H, Tsuji K, Nakabayashi T, Miyata T, Okawa A, Asou Y. A small-molecule PAI-1 inhibitor prevents bone loss by stimulating bone formation in a murine estrogen deficiency-induced osteoporosis model. FEBS Open Bio 2018; 8:523-532. [PMID: 29632806 PMCID: PMC5881535 DOI: 10.1002/2211-5463.12390] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Revised: 12/20/2017] [Accepted: 01/04/2018] [Indexed: 11/06/2022] Open
Abstract
Osteoporosis is a progressive bone disease caused by an imbalance between bone resorption and formation. Recently, plasminogen activator inhibitor-1 (PAI-1) was shown to play an important role in bone metabolism using PAI-1-deficient mice. In this study, we evaluated the therapeutic benefits of novel, orally available small-molecule PAI-1 inhibitor (iPAI-1) in an estrogen deficiency-induced osteoporosis model. Eight-week-old C57BL/6J female mice were divided into three groups: a sham + vehicle (Sham), ovariectomy + vehicle (OVX + v), and OVX + iPAI-1 (OVX + i) group. iPAI-1 was administered orally each day for 6 weeks starting the day after the operation. Six weeks of iPAI-1 treatment prevented OVX-induced trabecular bone loss in both the femoral bone and lumbar spine. Bone formation activity was significantly higher in the OVX + i group than in the OVX + v and Sham groups. Unexpectedly, OVX-induced osteoclastogenesis was partially, but significantly reduced. Fluorescence-activated cell sorting analyses indicated that the number of bone marrow stromal cells was higher in the OVX + i group than that in the OVX + v group. A colony-forming unit-osteoblast assay indicated enhanced mineralized nodule formation activity in bone marrow cells isolated from iPAI-1-treated animals. Bone marrow ablation analysis indicated that the remodeled trabecular bone volume was significantly higher in the iPAI-1-treated group than that in the control group. In conclusion, our results suggest PAI-1 blockade via a small-molecule inhibitor is a new therapeutic approach for the anabolic treatment of postmenopausal osteoporosis.
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Affiliation(s)
- Guangwen Jin
- Department of Orthopedics Surgery Tokyo Medical and Dental University Japan.,Department of Orthopaedic Surgery Yanbian University Hospital Yanji City Jilin Province China
| | | | - Jinying Piao
- Department of Orthopedics Surgery Tokyo Medical and Dental University Japan
| | - Zulipiya Aibibula
- Department of Orthopedics Surgery Tokyo Medical and Dental University Japan
| | - Daisuke Koga
- Department of Orthopedics Surgery Tokyo Medical and Dental University Japan
| | - Shingo Sato
- Department of Physiology and Cell Biology Tokyo Medical and Dental University Japan
| | - Hiroki Ochi
- Department of Physiology and Cell Biology Tokyo Medical and Dental University Japan
| | - Kunikazu Tsuji
- Department of Cartilage Regeneration Tokyo Medical and Dental University Japan
| | - Tetsuo Nakabayashi
- Department of Molecular Medicine and Therapy United Centers for Advanced Research and Translational Medicine Tohoku University Graduate School of Medicine Miyagi Japan
| | - Toshio Miyata
- Department of Molecular Medicine and Therapy United Centers for Advanced Research and Translational Medicine Tohoku University Graduate School of Medicine Miyagi Japan
| | - Atsushi Okawa
- Department of Orthopedics Surgery Tokyo Medical and Dental University Japan
| | - Yoshinori Asou
- Department of Orthopedics Surgery Tokyo Medical and Dental University Japan
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Fang WF, Chen YM, Lin CY, Huang HL, Yeh H, Chang YT, Huang KT, Lin MC. Histone deacetylase 2 (HDAC2) attenuates lipopolysaccharide (LPS)-induced inflammation by regulating PAI-1 expression. JOURNAL OF INFLAMMATION-LONDON 2018; 15:3. [PMID: 29344006 PMCID: PMC5763578 DOI: 10.1186/s12950-018-0179-6] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Accepted: 01/04/2018] [Indexed: 12/22/2022]
Abstract
Background Sepsis is a life-threatening organ dysfunction caused by dysregulated host response to infection, and is primarily characterized by an uncontrolled systemic inflammatory response. In the present study, we developed an effective adjunct therapy mediated by a novel mechanism, to attenuate overt inflammation. LPS-treated macrophages were adopted as an in vitro model of endotoxin-induced inflammation during sepsis. Experiments were carried out using primary mouse peritoneal macrophages and the murine macrophage cell line RAW264.7, to elucidate the mechanisms by which HDAC2 modulates endotoxin-induced inflammation. Results Results revealed that PAI-1, TNF, and MIP-2 expression were inhibited by theophylline, an HDAC2 enhancer, in a RAW macrophage cell line, following LPS-induced inflammation. Thus, HDAC2 plays an important role in immune defense by regulating the expression of inflammatory genes via the c-Jun/PAI-1 pathway. During LPS-induced inflammation, overexpression of HDAC2 was found to inhibit PAI-1, TNF, and MIP-2 expression. Following LPS stimulation, HDAC2 knockdown increased nuclear translocation and DNA binding of c-Jun to the PAI-1 gene promoter, thereby activating PAI-1 gene transcription. Furthermore, inhibition of PAI-1 by TM5275 alone or in combination with theophylline notably suppressed TNF and MIP-2 expression. Conclusion HDAC2 can attenuate lipopolysaccharide-induced inflammation by regulating c-Jun and PAI-1 expression in macrophages.
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Affiliation(s)
- Wen-Feng Fang
- 1Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, 833 Taiwan.,2Department of Respiratory Therapy, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, 123 Ta-Pei Rd, Niao-Sung Dist, Kaohsiung, 833 Taiwan.,3Department of Respiratory Care, Chang Gung University of Science and Technology, Chiayi, 813 Taiwan
| | - Yu-Mu Chen
- 1Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, 833 Taiwan
| | - Chiung-Yu Lin
- 1Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, 833 Taiwan
| | - Hui-Lin Huang
- 1Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, 833 Taiwan
| | - Hua Yeh
- 1Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, 833 Taiwan
| | - Ya-Ting Chang
- 1Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, 833 Taiwan
| | - Kuo-Tung Huang
- 1Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, 833 Taiwan
| | - Meng-Chih Lin
- 1Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, 833 Taiwan.,2Department of Respiratory Therapy, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, 123 Ta-Pei Rd, Niao-Sung Dist, Kaohsiung, 833 Taiwan
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Yamaoka N, Murano K, Kodama H, Maeda A, Dan T, Nakabayashi T, Miyata T, Meguro K. Identification of novel plasminogen activator inhibitor-1 inhibitors with improved oral bioavailability: Structure optimization of N-acylanthranilic acid derivatives. Bioorg Med Chem Lett 2018; 28:809-813. [PMID: 29366646 DOI: 10.1016/j.bmcl.2017.11.016] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Revised: 11/03/2017] [Accepted: 11/08/2017] [Indexed: 12/20/2022]
Abstract
Novel plasminogen activator inhibitor-1 (PAI-1) inhibitors with highly improved oral bioavailability were discovered by structure-activity relationship studies on N-acyl-5-chloroanthranilic acid derivatives. Because lipophilic N-acyl groups seemed to be important for the anthranilic acid derivatives to strongly inhibit PAI-1, synthesis of compounds in which 5-chloroanthranilic acid was bound to a variety of highly lipophilic moieties with appropriate linkers was investigated. As the result it appeared that some of the derivatives possessing aryl- or heteroaryl-substituted phenyl groups in the acyl chain had potent in vitro PAI-1 inhibitory activity. Oral absorbability of typical compounds was also evaluated in rats, and compounds 40, 55, 60 and 76 which have diverse chemical structure with each other were selected for further pharmacological evaluation.
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Affiliation(s)
- Nagahisa Yamaoka
- CT Laboratory, Hamari Chemicals, Ltd., 1-4-29 Kunijima, Higashiyodogawa-ku, Osaka 533-0024, Japan.
| | - Kenji Murano
- CT Laboratory, Hamari Chemicals, Ltd., 1-4-29 Kunijima, Higashiyodogawa-ku, Osaka 533-0024, Japan
| | - Hidehiko Kodama
- CT Laboratory, Hamari Chemicals, Ltd., 1-4-29 Kunijima, Higashiyodogawa-ku, Osaka 533-0024, Japan
| | - Akihisa Maeda
- CT Laboratory, Hamari Chemicals, Ltd., 1-4-29 Kunijima, Higashiyodogawa-ku, Osaka 533-0024, Japan
| | - Takashi Dan
- United Centers for Advanced Research and Translational Medicine (ART), Tohoku University Graduate School of Medicine, 2-1 Seiryo-Machi, Aoba-ku, Sendai, Miyagi 980-8575, Japan
| | - Tetsuo Nakabayashi
- United Centers for Advanced Research and Translational Medicine (ART), Tohoku University Graduate School of Medicine, 2-1 Seiryo-Machi, Aoba-ku, Sendai, Miyagi 980-8575, Japan
| | - Toshio Miyata
- United Centers for Advanced Research and Translational Medicine (ART), Tohoku University Graduate School of Medicine, 2-1 Seiryo-Machi, Aoba-ku, Sendai, Miyagi 980-8575, Japan
| | - Kanji Meguro
- CT Laboratory, Hamari Chemicals, Ltd., 1-4-29 Kunijima, Higashiyodogawa-ku, Osaka 533-0024, Japan
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Peng S, Xue G, Gong L, Fang C, Chen J, Yuan C, Chen Z, Yao L, Furie B, Huang M. A long-acting PAI-1 inhibitor reduces thrombus formation. Thromb Haemost 2017; 117:1338-1347. [DOI: 10.1160/th16-11-0891] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Accepted: 03/25/2017] [Indexed: 01/05/2023]
Abstract
SummaryPlasminogen activator inhibitor 1 (PAI-1) is the main inhibitor of tissue-type and urokinase-type plasminogen activators (t/uPA) and plays an important role in fibrinolysis. Inhibition of PAI-1 activity prevents thrombosis and accelerates fibrinolysis, indicating that PAI-1 inhibitors may be used as effective antithrombotic agents. We previously designed a PAI-1 inhibitor (PAItrap) which is a variant of inactivated urokinase protease domain. In the present study, we fused PAItrap with human serum albumin (HSA) to develop a long-acting PAI-1 inhibitor. Unfortunately, the fusion protein PAItrap-HSA lost some potency compared to PAItrap (33 nM vs 10 nM). Guided by computational method, we carried out further optimisation to enhance inhibitory potency for PAI-1. The new PAItrap, denominated PAItrap(H37R)-HSA, which was the H37R variant of PAItrap fused to HSA, gave a six-fold improvement of IC50 (5 nM) for human active PAI-1 compared to PAItrap-HSA, and showed much longer plasma half-life (200-fold) compared to PAItrap. We further demonstrated that the PAItrap(H37R)-HSA inhibited exogenous or endogenous PAI-1 to promote fibrinolysis in fibrin-clot lysis assay. PAItrap(H37R)-HSA inhibits murine PAI-1 with IC50 value of 12 nM, allowing the inhibitor to be evaluated in murine models. Using an intravital microscopy, we demonstrated that PAItrap(H37R)-HSA blocks thrombus formation and platelet accumulation in vivo in a laser-induced vascular injury mouse model. Additionally, mouse tail bleeding assay showed that PAItrap(H37R)-HSA did not affect the global haemostasis. These results suggest that PAItrap(H37R)-HSA have the potential benefit to prevent thrombosis and accelerates fibrinolysis.
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Khan SS, Shah SJ, Klyachko E, Baldridge AS, Eren M, Place AT, Aviv A, Puterman E, Lloyd-Jones DM, Heiman M, Miyata T, Gupta S, Shapiro AD, Vaughan DE. A null mutation in SERPINE1 protects against biological aging in humans. SCIENCE ADVANCES 2017; 3:eaao1617. [PMID: 29152572 PMCID: PMC5687852 DOI: 10.1126/sciadv.aao1617] [Citation(s) in RCA: 88] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Accepted: 10/10/2017] [Indexed: 05/06/2023]
Abstract
Plasminogen activator inhibitor-1 (PAI-1) has been shown to be a key component of the senescence-related secretome and a direct mediator of cellular senescence. In murine models of accelerated aging, genetic deficiency and targeted inhibition of PAI-1 protect against aging-like pathology and prolong life span. However, the role of PAI-1 in human longevity remains unclear. We hypothesized that a rare loss-of-function mutation in SERPINE1 (c.699_700dupTA), which encodes PAI-1, could play a role in longevity and metabolism in humans. We studied 177 members of the Berne Amish community, which included 43 carriers of the null SERPINE1 mutation. Heterozygosity was associated with significantly longer leukocyte telomere length, lower fasting insulin levels, and lower prevalence of diabetes mellitus. In the extended Amish kindred, carriers of the null SERPINE1 allele had a longer life span. Our study indicates a causal effect of PAI-1 on human longevity, which may be mediated by alterations in metabolism. Our findings demonstrate the utility of studying loss-of-function mutations in populations with geographic and genetic isolation and shed light on a novel therapeutic target for aging.
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Affiliation(s)
- Sadiya S. Khan
- Division of Cardiology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
- Feinberg Cardiovascular Research Institute, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
- Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Sanjiv J. Shah
- Division of Cardiology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
- Feinberg Cardiovascular Research Institute, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Ekaterina Klyachko
- Division of Cardiology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
- Feinberg Cardiovascular Research Institute, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Abigail S. Baldridge
- Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Mesut Eren
- Feinberg Cardiovascular Research Institute, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Aaron T. Place
- Feinberg Cardiovascular Research Institute, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Abraham Aviv
- Center for Human Development and Aging, New Jersey Medical School, Newark, NJ 07103, USA
| | - Eli Puterman
- School of Kinesiology, University of British Columbia, Vancouver, British Columbia, Canada
| | - Donald M. Lloyd-Jones
- Division of Cardiology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
- Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Meadow Heiman
- Indiana Hemophilia and Thrombosis Center, Indianapolis, IN 46260, USA
| | - Toshio Miyata
- Tohoku University Graduate School of Medicine, Miyagi, Japan
| | - Sweta Gupta
- Indiana Hemophilia and Thrombosis Center, Indianapolis, IN 46260, USA
| | - Amy D. Shapiro
- Indiana Hemophilia and Thrombosis Center, Indianapolis, IN 46260, USA
| | - Douglas E. Vaughan
- Division of Cardiology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
- Feinberg Cardiovascular Research Institute, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
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Lee SM, Dorotea D, Jung I, Nakabayashi T, Miyata T, Ha H. TM5441, a plasminogen activator inhibitor-1 inhibitor, protects against high fat diet-induced non-alcoholic fatty liver disease. Oncotarget 2017; 8:89746-89760. [PMID: 29163785 PMCID: PMC5685706 DOI: 10.18632/oncotarget.21120] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Accepted: 09/03/2017] [Indexed: 12/16/2022] Open
Abstract
Recent evidences showed that elevation of plasminogen activator inhibitor 1 (PAI-1) was responsible in mediating obesity-induced non-alcoholic fatty liver disease (NAFLD) and metabolic disorders. Here, we investigated the effect of TM5441, an oral PAI-1 inhibitor that lacks of bleeding risk, on high-fat diet (HFD)-induced NAFLD. HFD-fed C57BL/6J mice was daily treated with 20 mg/kg TM5441. To examine the preventive effect, 10-week-treatment was started along with initiation of HFD; alternatively, 4-week-treatment was started in mice with glucose intolerance in the interventional strategy. In vivo study showed that early and delayed treatment decreased hepatic steatosis. Particularly, early treatment prevented the progression of hepatic inflammation and fibrosis in HFD mice. Interestingly, both strategies abrogated hepatic insulin resistance and mitochondrial dysfunction, presented by enhanced p-Akt and p-GSK3β, reduced p-JNK signaling, along with p-AMPK and PGC-1α activation. Consistently, TM5441 treatment in the presence of either PAI-1 exposure or TNF-α stimulated-PAI-1 activity showed a restoration of mitochondrial biogenesis related genes expression on HepG2 cells. Thus, improvement of insulin sensitivity and mitochondrial function was imperative to partially explain the therapeutic effects of TM5441, a novel agent targeting HFD-induced NAFLD.
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Affiliation(s)
- Seon Myeong Lee
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul, Republic of Korea
| | - Debra Dorotea
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul, Republic of Korea
| | - Inji Jung
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul, Republic of Korea
| | - Tetsuo Nakabayashi
- United Centers for Advanced Research and Translational Medicine, Tohoku University Graduate School of Medicine, Miyagi, Japan
| | - Toshio Miyata
- United Centers for Advanced Research and Translational Medicine, Tohoku University Graduate School of Medicine, Miyagi, Japan
| | - Hunjoo Ha
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul, Republic of Korea
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Yu B, Zhang G, Jin L, Zhang B, Yan D, Yang H, Ye Z, Ma T. Inhibition of PAI-1 Activity by Toddalolactone as a Mechanism for Promoting Blood Circulation and Removing Stasis by Chinese Herb Zanthoxylum nitidum var. tomentosum. Front Pharmacol 2017; 8:489. [PMID: 28785222 PMCID: PMC5519579 DOI: 10.3389/fphar.2017.00489] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Accepted: 07/10/2017] [Indexed: 12/26/2022] Open
Abstract
Traditional Chinese medicine has been used to treat a variety of human diseases for many centuries. Zanthoxylum nitidum var. tomentosum is used as an adjuvant to promote blood circulation and remove stasis. However, the mechanisms of improving circulation and other biological activities of Z. nitidum var. tomentosum are still unclear. Plasminogen activator inhibitor-1 (PAI-1) regulates the plasminogen activation system through inhibition of tissue-type and urokinase-type plasminogen activators (tPA and uPA). PAI-1 has been linked to fibrin deposition that evolves into organ fibrosis and atherosclerosis. In the present study, we showed that ethanol extract prepared from Z. nitidum var. tomentosum exhibited PAI-1 inhibitory activity, and identified toddalolactone as the main active component that inhibited the activity of recombinant human PAI-1 with IC50 value of 37.31 ± 3.23 μM, as determined by chromogenic assay, and the effect was further confirmed by clot lysis assay. In vitro study showed that toddalolactone inhibited the binding between PAI-1 and uPA, and therefore prevented the formation of the PAI-1/uPA complex. Intraperitoneal injection of toddalolactone in mice significantly prolonged tail bleeding and reduced arterial thrombus weight in a FeCl3-induced thrombosis model. In addition, the hydroxyproline level in the plasma and the degree of liver fibrosis in mice were decreased after intraperitoneal injection of toddalolactone in CCl4-induced mouse liver fibrosis model. Taken together, PAI-1 inhibition exerted by toddalolactone may represent a novel molecular mechanism by which Z. nitidum var. tomentosum manifests its effect in the treatment of thrombosis and fibrosis.
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Affiliation(s)
- Bo Yu
- School of Life Sciences, Liaoning Provincial Key Laboratory of Biotechnology and Drug Discovery, Liaoning Normal UniversityDalian, China
| | - Guangping Zhang
- Institute of Chinese Materia Medica, China Academy of Chinese Medical SciencesBeijing, China
| | - Lingling Jin
- College of Basic Medical Sciences, Dalian Medical UniversityDalian, China
| | - Bo Zhang
- College of Basic Medical Sciences, Dalian Medical UniversityDalian, China
| | - Dong Yan
- School of Life Sciences, Liaoning Provincial Key Laboratory of Biotechnology and Drug Discovery, Liaoning Normal UniversityDalian, China
| | - Hong Yang
- School of Life Sciences, Liaoning Provincial Key Laboratory of Biotechnology and Drug Discovery, Liaoning Normal UniversityDalian, China
| | - Zuguang Ye
- Institute of Chinese Materia Medica, China Academy of Chinese Medical SciencesBeijing, China
| | - Tonghui Ma
- College of Basic Medical Sciences, Dalian Medical UniversityDalian, China
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Honjo K, Munakata S, Tashiro Y, Salama Y, Shimazu H, Eiamboonsert S, Dhahri D, Ichimura A, Dan T, Miyata T, Takeda K, Sakamoto K, Hattori K, Heissig B. Plasminogen activator inhibitor‐1 regulates macrophage‐dependent postoperative adhesion by enhancing EGF‐HER1 signaling in mice. FASEB J 2017; 31:2625-2637. [DOI: 10.1096/fj.201600871rr] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Accepted: 02/21/2017] [Indexed: 11/11/2022]
Affiliation(s)
- Kumpei Honjo
- Division of Stem Cell Dynamics Center for Stem Cell Biology and Regenerative MedicineThe Institute of Medical Science The University of Tokyo Tokyo Japan
- Department of Coloproctological Surgery Tokyo Japan
| | - Shinya Munakata
- Division of Stem Cell Dynamics Center for Stem Cell Biology and Regenerative MedicineThe Institute of Medical Science The University of Tokyo Tokyo Japan
- Department of Coloproctological Surgery Tokyo Japan
| | - Yoshihiko Tashiro
- Division of Stem Cell Dynamics Center for Stem Cell Biology and Regenerative MedicineThe Institute of Medical Science The University of Tokyo Tokyo Japan
- Department of Coloproctological Surgery Tokyo Japan
| | - Yousef Salama
- Division of Stem Cell Dynamics Center for Stem Cell Biology and Regenerative MedicineThe Institute of Medical Science The University of Tokyo Tokyo Japan
| | - Hiroshi Shimazu
- Division of Stem Cell Dynamics Center for Stem Cell Biology and Regenerative MedicineThe Institute of Medical Science The University of Tokyo Tokyo Japan
| | - Salita Eiamboonsert
- Division of Stem Cell Dynamics Center for Stem Cell Biology and Regenerative MedicineThe Institute of Medical Science The University of Tokyo Tokyo Japan
| | - Douaa Dhahri
- Division of Stem Cell Dynamics Center for Stem Cell Biology and Regenerative MedicineThe Institute of Medical Science The University of Tokyo Tokyo Japan
| | - Atsuhiko Ichimura
- United Centers for Advanced Research and Translational MedicineGraduate School of Medicine, Tohoku University Sendai Japan
| | - Takashi Dan
- United Centers for Advanced Research and Translational MedicineGraduate School of Medicine, Tohoku University Sendai Japan
| | - Toshio Miyata
- United Centers for Advanced Research and Translational MedicineGraduate School of Medicine, Tohoku University Sendai Japan
| | - Kazuyoshi Takeda
- Department of Immunology and Atopy CenterGraduate School of Medicine, Juntendo University Tokyo Japan
| | | | - Koichi Hattori
- Division of Stem Cell Dynamics Center for Stem Cell Biology and Regenerative MedicineThe Institute of Medical Science The University of Tokyo Tokyo Japan
- Center for Genomic and Regenerative MedicineFaculty of Medicine Tokyo Japan
| | - Beate Heissig
- Division of Stem Cell Dynamics Center for Stem Cell Biology and Regenerative MedicineThe Institute of Medical Science The University of Tokyo Tokyo Japan
- Department of Immunology and Atopy CenterGraduate School of Medicine, Juntendo University Tokyo Japan
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Plasminogen activator inhibitor type 1 in platelets induces thrombogenicity by increasing thrombolysis resistance under shear stress in an in-vitro flow chamber model. Thromb Res 2016; 146:69-75. [PMID: 27611498 DOI: 10.1016/j.thromres.2016.09.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Revised: 08/26/2016] [Accepted: 09/02/2016] [Indexed: 11/22/2022]
Abstract
INTRODUCTION Despite the proven benefits of thrombolytic therapy with tissue plasminogen activator (t-PA) for peripheral thromboembolism, perfusion failure frequently occurs, particularly in arterial circulation. We evaluated how the modification of fibrinolytic activity affects thrombus formation under flow and static conditions. MATERIALS AND METHODS t-PA-treated human whole-blood samples (n=6) were perfused over a microchip coated with collagen and tissue thromboplastin at different shear rates, and thrombus formation was quantified by measuring flow pressure changes. For comparison, rotational thromboelastometry (ROTEM) was used to evaluate fibrinolytic activity under static conditions. RESULTS At a shear rate of 240s-1, t-PA (200-800IU/ml) concentration-dependently delayed capillary occlusion, whereas at 600s-1, capillary occlusion was significantly faster and t-PA had limited effects, even at a supra-pharmacological concentration (800IU/ml). In contrast, 200IU/ml t-PA efficiently prevented clot formation in the ROTEM assay. The combined treatment of blood with a specific PAI-1 inhibitor (PAI-039) moderately enhanced the efficacy of t-PA, but only under flow conditions. In addition, 1:1-diluted blood samples of PAI-1-deficient (-/-) mice showed a significant delay of capillary occlusion at 240s-1, compared with those from wild-type mice (1.55 fold; P<0.001). This delayed occlusion was reproduced in samples containing platelets from PAI-1-/- and plasma from wild type, but was not observed by the opposite combination of blood components. CONCLUSIONS The present results suggest that the anti-thrombotic efficacy of t-PA is sensitive to arterial shear flow, and that PAI-1 secreted from activated platelets plays an essential role in thrombolytic resistance.
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Han T, Zhang G, Yan D, Yang H, Ma T, Ye Z. Modulation of plasminogen activator inhibitor-1 (PAI-1) by the naphthoquinone shikonin. Fitoterapia 2016; 113:117-22. [DOI: 10.1016/j.fitote.2016.07.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2016] [Revised: 07/19/2016] [Accepted: 07/27/2016] [Indexed: 11/25/2022]
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Bhattacharjee N, Barma S, Konwar N, Dewanjee S, Manna P. Mechanistic insight of diabetic nephropathy and its pharmacotherapeutic targets: An update. Eur J Pharmacol 2016; 791:8-24. [PMID: 27568833 DOI: 10.1016/j.ejphar.2016.08.022] [Citation(s) in RCA: 178] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2016] [Revised: 08/03/2016] [Accepted: 08/24/2016] [Indexed: 02/09/2023]
Abstract
Diabetic nephropathy (DN), a chronic complication of diabetes, is charecterized by glomerular hypertrophy, proteinuria, decreased glomerular filtration, and renal fibrosis resulting in the loss of renal function. Although the exact cause of DN remains unclear, several mechanisms have been postulated, such as hyperglycemia-induced renal hyper filtration and renal injury, AGEs-induced increased oxidative stress, activated PKC-induced increased production of cytokines, chemokines, and different inflammatory and apoptotic signals. Among various factors, oxidative stress has been suggested to play a major role underlying the onset and propagation of DN. It triggers several signaling pathways involved in DN, like AGEs, PKC cascade, JAK/STAT signaling, MAPK, mTOR, and SMAD. Oxidative stress-induced activation of both inflammatory and apoptotic signals are two major problems in the pathogenesis of DN. The FDA approved pharmacotherapeutic agents affecting against polyol pathway principally include anti-oxidants, like α-lipoic acid, vitamin E, and vitamin C. Kremezin and benfotiamine are the FDA approved AGEs inhibitors, another therapeutic target against DN. Ruboxistaurin, telmizartan, rapamycin, fenofibrate, aliskiren, and manidipine are some FDA approved pharmacotherapeutics effective against DN via diverse mechanisms. Beside this, some therapeutic agents are still waiting for FDA approval and few drugs without FDA approval are also prescribed in some countries for the management of DN. Despite the medications available in the market to treat DN, the involvement of multiple mechanisms makes it difficult to choose an optimum therapeutic agent. Therefore, much research is required to find out new therapeutic agent/strategies for an adequate pharmacotherapy of DN.
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Affiliation(s)
- Niloy Bhattacharjee
- Advanced Pharmacognosy Research Laboratory, Department of Pharmaceutical Technology, Jadavpur University, Raja S C Mullick Road, Kolkata 700032, India
| | - Sujata Barma
- Advanced Pharmacognosy Research Laboratory, Department of Pharmaceutical Technology, Jadavpur University, Raja S C Mullick Road, Kolkata 700032, India
| | - Nandita Konwar
- Biological Science and Technology Division, CSIR-NEIST, Jorhat, Assam 785006, India
| | - Saikat Dewanjee
- Advanced Pharmacognosy Research Laboratory, Department of Pharmaceutical Technology, Jadavpur University, Raja S C Mullick Road, Kolkata 700032, India.
| | - Prasenjit Manna
- Biological Science and Technology Division, CSIR-NEIST, Jorhat, Assam 785006, India.
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Piao L, Jung I, Huh JY, Miyata T, Ha H. A novel plasminogen activator inhibitor-1 inhibitor, TM5441, protects against high-fat diet-induced obesity and adipocyte injury in mice. Br J Pharmacol 2016; 173:2622-32. [PMID: 27339909 DOI: 10.1111/bph.13541] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Revised: 06/11/2016] [Accepted: 06/16/2016] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND AND PURPOSE Obesity is one of the most prevalent chronic diseases worldwide, and dysregulated adipocyte function plays an important role in obesity-associated metabolic disorder. The level of plasma plasminogen activator inhibitor-1 (PAI-1) is increased in obese subjects, and PAI-1 null mice show improved insulin sensitivity when subjected to high-fat and high-sucrose diet-induced metabolic stress, suggesting that a best-in-class PAI-1 inhibitor may become a novel therapeutic agent for obesity-associated metabolic syndrome. TM5441 is a novel orally active PAI-1 inhibitor that does not cause bleeding episodes. Hence, in the present study we examined the preventive effect of TM5441 on high-fat diet (HFD)-induced adipocyte dysfunction. EXPERIMENTAL APPROACH Ten-week-old C57BL/6J mice were fed a normal diet (18% of total calories from fat) or HFD (60% of total calories from fat) for 10 weeks, and TM5441 (20 mg·kg(-1) oral gavage) was administered daily with the initiation of HFD. KEY RESULTS TM5441 prevented HFD-induced body weight gain and systemic insulin resistance. TM5441 normalized HFD-induced dysregulated JNK and Akt phosphorylation, suggesting that it prevents the insulin resistance of adipocytes. TM5441 also attenuated the macrophage infiltration and increased expression of pro-inflammatory cytokines, such as inducible nitric oxide synthase, induced by the HFD. In addition, TM5441 prevented the HFD-induced down-regulation of genes involved in mitochondrial biogenesis and function, suggesting that it may prevent adipocyte inflammation and dysregulation by maintaining mitochondrial fitness. CONCLUSION AND IMPLICATIONS Our data suggest that TM5441 may become a novel therapeutic agent for obesity and obesity-related metabolic disorders.
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Affiliation(s)
- Lingjuan Piao
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul, Korea
| | - Inji Jung
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul, Korea
| | - Joo Young Huh
- Colleges of Pharmacy, Chonnam National University, Gwang-Ju, Korea
| | - Toshio Miyata
- United Centers for Advanced Research and Translational Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Hunjoo Ha
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul, Korea
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Novel Plasminogen Activator Inhibitor-1 Inhibitors Prevent Diabetic Kidney Injury in a Mouse Model. PLoS One 2016; 11:e0157012. [PMID: 27258009 PMCID: PMC4892642 DOI: 10.1371/journal.pone.0157012] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2016] [Accepted: 05/22/2016] [Indexed: 01/13/2023] Open
Abstract
Diabetic nephropathy is the leading cause of end-stage renal disease worldwide, but no effective therapeutic strategy is available. Because plasminogen activator inhibitor-1 (PAI-1) is increasingly recognized as a key factor in extracellular matrix (ECM) accumulation in diabetic nephropathy, this study examined the renoprotective effects of TM5275 and TM5441, two novel orally active PAI-1 inhibitors that do not trigger bleeding episodes, in streptozotocin (STZ)-induced diabetic mice. TM5275 (50 mg/kg) and TM5441 (10 mg/kg) were administered orally for 16 weeks to STZ-induced diabetic and age-matched control mice. Relative to the control mice, the diabetic mice showed significantly increased (p < 0.05) plasma glucose and creatinine levels, urinary albumin excretion, kidney-to-bodyweight ratios, glomerular volume, and fractional mesangial area. Markers of fibrosis and inflammation along with PAI-1 were also upregulated in the kidney of diabetic mice, and treatment with TM5275 and TM5441 effectively inhibited albuminuria, mesangial expansion, ECM accumulation, and macrophage infiltration in diabetic kidneys. Furthermore, in mouse proximal tubular epithelial (mProx24) cells, both TM5275 and TM5441 effectively inhibited PAI-1-induced mRNA expression of fibrosis and inflammation markers and also reversed PAI-1-induced inhibition of plasmin activity, which confirmed the efficacy of the TM compounds as PAI-1 inhibitors. These data suggest that TM compounds could be used to prevent diabetic kidney injury.
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ITO K. Inhibitory effect of water extractive components from heshiko and narezushi on plasma PAI-1 activity in rats. ACTA ACUST UNITED AC 2016. [DOI: 10.2491/jjsth.27.349] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Daniel AE, Timmerman I, Kovacevic I, Hordijk PL, Adriaanse L, Paatero I, Belting HG, van Buul JD. Plasminogen Activator Inhibitor-1 Controls Vascular Integrity by Regulating VE-Cadherin Trafficking. PLoS One 2015; 10:e0145684. [PMID: 26714278 PMCID: PMC4694698 DOI: 10.1371/journal.pone.0145684] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Accepted: 12/07/2015] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Plasminogen activator inhibitor-1 (PAI-1), a serine protease inhibitor, is expressed and secreted by endothelial cells. Patients with PAI-1 deficiency show a mild to moderate bleeding diathesis, which has been exclusively ascribed to the function of PAI-1 in down-regulating fibrinolysis. We tested the hypothesis that PAI-1 function plays a direct role in controlling vascular integrity and permeability by keeping endothelial cell-cell junctions intact. METHODOLOGY/PRINCIPAL FINDINGS We utilized PAI-039, a specific small molecule inhibitor of PAI-1, to investigate the role of PAI-1 in protecting endothelial integrity. In vivo inhibition of PAI-1 resulted in vascular leakage from intersegmental vessels and in the hindbrain of zebrafish embryos. In addition PAI-1 inhibition in human umbilical vein endothelial cell (HUVEC) monolayers leads to a marked decrease of transendothelial resistance and disrupted endothelial junctions. The total level of the endothelial junction regulator VE-cadherin was reduced, whereas surface VE-cadherin expression was unaltered. Moreover, PAI-1 inhibition reduced the shedding of VE-cadherin. Finally, we detected an accumulation of VE-cadherin at the Golgi apparatus. CONCLUSIONS/SIGNIFICANCE Our findings indicate that PAI-1 function is important for the maintenance of endothelial monolayer and vascular integrity by controlling VE-cadherin trafficking to and from the plasma membrane. Our data further suggest that therapies using PAI-1 antagonists like PAI-039 ought to be used with caution to avoid disruption of the vessel wall.
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Affiliation(s)
- Anna E. Daniel
- Department of Molecular Cell Biology, Sanquin Research and Landsteiner Laboratory, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands
| | - Ilse Timmerman
- Department of Molecular Cell Biology, Sanquin Research and Landsteiner Laboratory, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands
| | - Igor Kovacevic
- Department of Molecular Cell Biology, Sanquin Research and Landsteiner Laboratory, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands
| | - Peter L. Hordijk
- Department of Molecular Cell Biology, Sanquin Research and Landsteiner Laboratory, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands
| | - Luc Adriaanse
- Department of Molecular Cell Biology, Sanquin Research and Landsteiner Laboratory, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands
| | - Ilkka Paatero
- Department of Cell Biology, Biozentrum der Universität Basel, Basel, Switzerland
| | - Heinz-Georg Belting
- Department of Cell Biology, Biozentrum der Universität Basel, Basel, Switzerland
| | - Jaap D. van Buul
- Department of Molecular Cell Biology, Sanquin Research and Landsteiner Laboratory, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands
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Liu RM, Eldridge S, Watanabe N, Deshane J, Kuo HC, Jiang C, Wang Y, Liu G, Schwiebert L, Miyata T, Thannickal VJ. Therapeutic potential of an orally effective small molecule inhibitor of plasminogen activator inhibitor for asthma. Am J Physiol Lung Cell Mol Physiol 2015; 310:L328-36. [PMID: 26702150 DOI: 10.1152/ajplung.00217.2015] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Accepted: 12/19/2015] [Indexed: 11/22/2022] Open
Abstract
Asthma is one of the most common respiratory diseases. Although progress has been made in our understanding of airway pathology and many drugs are available to relieve asthma symptoms, there is no cure for chronic asthma. Plasminogen activator inhibitor 1 (PAI-1), a primary inhibitor of tissue-type and urokinase-type plasminogen activators, has pleiotropic functions besides suppression of fibrinolysis. In this study, we show that administration of TM5275, an orally effective small-molecule PAI-1 inhibitor, 25 days after ovalbumin (OVA) sensitization-challenge, significantly ameliorated airway hyperresponsiveness in an OVA-induced chronic asthma model. Furthermore, we show that TM5275 administration significantly attenuated OVA-induced infiltration of inflammatory cells (neutrophils, eosinophils, and monocytes), the increase in the levels of OVA-specific IgE and Th2 cytokines (IL-4 and IL-5), the production of mucin in the airways, and airway subepithelial fibrosis. Together, the results suggest that the PAI-1 inhibitor TM5275 may have therapeutic potential for asthma through suppressing eosinophilic allergic response and ameliorating airway remodeling.
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Affiliation(s)
- Rui-Ming Liu
- Division of Pulmonary, Allergy, and Critical Care, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama;
| | - Stephanie Eldridge
- Division of Pulmonary, Allergy, and Critical Care, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama
| | - Nobuo Watanabe
- United Centers for Advanced Research and Translational Medicine, Tohoku University Graduate School of Medicine, Tohoku, Japan
| | - Jessy Deshane
- Division of Pulmonary, Allergy, and Critical Care, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama
| | - Hui-Chien Kuo
- Department of Biostatistics, University of Alabama at Birmingham, Birmingham, Alabama; and
| | - Chunsun Jiang
- Division of Pulmonary, Allergy, and Critical Care, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama
| | - Yong Wang
- Division of Pulmonary, Allergy, and Critical Care, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama
| | - Gang Liu
- Division of Pulmonary, Allergy, and Critical Care, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama
| | - Lisa Schwiebert
- Department of Cell, Developmental, and Integrative Biology, University of Alabama at Birmingham, Birmingham, Alabama
| | - Toshio Miyata
- United Centers for Advanced Research and Translational Medicine, Tohoku University Graduate School of Medicine, Tohoku, Japan
| | - Victor J Thannickal
- Division of Pulmonary, Allergy, and Critical Care, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama
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Sato M, Kawana K, Adachi K, Fujimoto A, Yoshida M, Nakamura H, Nishida H, Inoue T, Taguchi A, Takahashi J, Kojima S, Yamashita A, Tomio K, Nagamatsu T, Wada-Hiraike O, Oda K, Osuga Y, Fujii T. Decreased expression of the plasminogen activator inhibitor type 1 is involved in degradation of extracellular matrix surrounding cervical cancer stem cells. Int J Oncol 2015; 48:829-35. [PMID: 26676222 DOI: 10.3892/ijo.2015.3283] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Accepted: 11/22/2015] [Indexed: 11/06/2022] Open
Abstract
The plasminogen activator (PA) system consists of plasminogen activator inhibitor type 1 (PAI-1), urokinase-type plasminogen activator and its receptor (uPA and uPAR). PAI-1 inhibits the activation of uPA (which converts plasminogen to plasmin), and is involved in cancer invasion and metastasis, by remodeling the extracellular matrix (ECM) through regulating plasmin. Cancer stem cells (CSCs) are a small subset of cells within tumors, and are thought to be involved in tumor recurrence and metastasis. Considering these facts, we investigated the relationship between PAI-1 and cervical CSCs. We used ALDH1 as a marker of cervical CSCs. First, we demonstrated that culturing ALDH1-high cells and ALDH-low cells on collagen IV-coted plates increased their expression of active PAI-1 (ELISA), and these increases were suggested to be at mRNA expression levels (RT-qPCR). Secondly, we demonstrated PAI-1 was indeed involved in the ECM maintenance. With gelatin zymography assays, we found that ALDH1-high cells and ALDH-low cells expressed pro-matrix metalloproteinase-2 (pro-MMP-2) irrespective of their coatings. With gelatinase/collagenase assay kit, we confirmed that collagenase activity was increased when ALDH1-low cells were exposed to TM5275, a small molecule inhibitor of PAI-1. Putting the data together, we hypothesized that cancer cells adhered to basal membrane secrete abundant PAI-1, on the other hand, cancer cells (especially CSCs rather than non-CSCs) distant from basal membrane secrete less PAI-1, which makes the ECM surrounding CSCs more susceptible to degradation. Our study could be an explanation of conflicting reports, where some researchers found negative impacts of PAI-1 expression on clinical outcomes and others not, by considering the concept of CSCs.
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Affiliation(s)
- Masakazu Sato
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Kei Kawana
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Katsuyuki Adachi
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Asaha Fujimoto
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Mitsuyo Yoshida
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Hiroe Nakamura
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Haruka Nishida
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Tomoko Inoue
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Ayumi Taguchi
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Juri Takahashi
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Satoko Kojima
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Aki Yamashita
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Kensuke Tomio
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Takeshi Nagamatsu
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Osamu Wada-Hiraike
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Katsutoshi Oda
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Yutaka Osuga
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Tomoyuki Fujii
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-8655, Japan
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Dissecting fibrosis: therapeutic insights from the small-molecule toolbox. Nat Rev Drug Discov 2015; 14:693-720. [PMID: 26338155 DOI: 10.1038/nrd4592] [Citation(s) in RCA: 161] [Impact Index Per Article: 17.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Fibrosis, which leads to progressive loss of tissue function and eventual organ failure, has been estimated to contribute to ~45% of deaths in the developed world, and so new therapeutics to modulate fibrosis are urgently needed. Major advances in our understanding of the mechanisms underlying pathological fibrosis are supporting the search for such therapeutics, and the recent approval of two anti-fibrotic drugs for idiopathic pulmonary fibrosis has demonstrated the tractability of this area for drug discovery. This Review examines the pharmacology and structural information for small molecules being evaluated for lung, liver, kidney and skin fibrosis. In particular, we discuss the insights gained from the use of these pharmacological tools, and how these entities can inform, and probe, emerging insights into disease mechanisms, including the potential for future drug combinations.
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Small Molecule Inhibitors of Plasminogen Activator Inhibitor-1 Elicit Anti-Tumorigenic and Anti-Angiogenic Activity. PLoS One 2015. [PMID: 26207899 PMCID: PMC4514594 DOI: 10.1371/journal.pone.0133786] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
Numerous studies have shown a paradoxical positive correlation between elevated levels of plasminogen activator inhibitior-1 (PAI-1) in tumors and blood of cancer patients with poor clinical outcome, suggesting that PAI-1 could be a therapeutic target. Here we tested two orally bioavailable small molecule inhibitors of PAI-1 (TM5275 and TM5441) for their efficacy in pre-clinical models of cancer. We demonstrated that these inhibitors decreased cell viability in several human cancer cell lines with an IC50 in the 9.7 to 60.3 μM range and induced intrinsic apoptosis at concentrations of 50 μM. In vivo, oral administration of TM5441 (20 mg/kg daily) to HT1080 and HCT116 xenotransplanted mice increased tumor cell apoptosis and had a significant disruptive effect on the tumor vasculature that was associated with a decrease in tumor growth and an increase in survival that, however, were not statistically significant. Pharmacokinetics studies indicated an average peak plasma concentration of 11.4 μM one hour after oral administration and undetectable levels 23 hours after administration. The effect on tumor vasculature in vivo was further examined in endothelial cells (EC) in vitro and this analysis indicated that both TM5275 and TM5441 inhibited EC branching in a 3D Matrigel assay at concentrations where they had little effect on EC apoptosis. These studies bring novel insight on the activity of PAI-1 inhibitors and provide important information for the future design of inhibitors targeting PAI-1 as therapeutic agents in cancer.
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Placencio VR, DeClerck YA. Plasminogen Activator Inhibitor-1 in Cancer: Rationale and Insight for Future Therapeutic Testing. Cancer Res 2015; 75:2969-74. [PMID: 26180080 DOI: 10.1158/0008-5472.can-15-0876] [Citation(s) in RCA: 130] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Accepted: 04/28/2015] [Indexed: 12/19/2022]
Abstract
Despite its function as an inhibitor of urokinase and tissue-type plasminogen activator (PA), PA inhibitor-1 (PAI-1) has a paradoxical protumorigenic role in cancer, promoting angiogenesis and tumor cell survival. In this review, we summarize preclinical evidence in support of the protumorigenic function of PAI-1 that has led to the testing of small-molecule PAI-1 inhibitors, initially developed as antithrombotic agents, in animal models of cancer. The review discusses the challenges and the opportunities that lay ahead to the development of efficacious and nontoxic PAI-1 inhibitors as anticancer agents.
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Affiliation(s)
- Veronica R Placencio
- Division of Hematology, Oncology and Blood and Bone Marrow Transplantation, Department of Pediatrics, University of Southern California, Los Angeles, California. The Saban Research Institute of Children's Hospital Los Angeles, Los Angeles, California
| | - Yves A DeClerck
- Division of Hematology, Oncology and Blood and Bone Marrow Transplantation, Department of Pediatrics, University of Southern California, Los Angeles, California. The Saban Research Institute of Children's Hospital Los Angeles, Los Angeles, California. Department of Biochemistry and Molecular Biology, University of Southern California, Los Angeles, California.
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50
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Baluta MM, Vintila MM. PAI-1 Inhibition - Another Therapeutic Option for Cardiovascular Protection. MAEDICA 2015; 10:147-152. [PMID: 28275409 PMCID: PMC5327810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Current research suggest that plasminogen activator inhibitor type 1 (PAI-1) is an important contributor to a number of disease processes. The aim of the current paper is to emphasize the deleterious effects of PAI-1 on cardiovascular diseases development and progression. The plasminogen system is known by its role in hemostasis and thrombosis regulation. Lifestyle changes and pharmacological treatment can regulate PAI-1 levels and functions. Some pharmacologic agents currently used in the management of atherosclerosis and its complications can counteract the deleterious effects of PAI-1.
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Affiliation(s)
- Monica Mariana Baluta
- Department of Cardiology, "St Pantelimon" Hospital, "Carol Davila" University of Medicine and Pharmacy, Bucharest, Romania
| | - Marius Marcian Vintila
- Department of Cardiology, "St Pantelimon" Hospital, "Carol Davila" University of Medicine and Pharmacy, Bucharest, Romania
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