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Ren Y, Wang M, Yuan H, Wang Z, Yu L. A novel insight into cancer therapy: Lipid metabolism in tumor-associated macrophages. Int Immunopharmacol 2024; 135:112319. [PMID: 38801810 DOI: 10.1016/j.intimp.2024.112319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Revised: 05/07/2024] [Accepted: 05/19/2024] [Indexed: 05/29/2024]
Abstract
The tumor immune microenvironment (TIME) can limit the effectiveness and often leads to significant side effects of conventional cancer therapies. Consequently, there is a growing interest in identifying novel targets to enhance the efficacy of targeted cancer therapy. More research indicates that tumor-associated macrophages (TAMs), originating from peripheral blood monocytes generated from bone marrow myeloid progenitor cells, play a crucial role in the tumor microenvironment (TME) and are closely associated with resistance to traditional cancer therapies. Lipid metabolism alterations have been widely recognized as having a significant impact on tumors and their immune microenvironment. Lipids, lipid derivatives, and key substances in their metabolic pathways can influence the carcinogenesis and progression of cancer cells by modulating the phenotype, function, and activity of TAMs. Therefore, this review focuses on the reprogramming of lipid metabolism in cancer cells and their immune microenvironment, in which the TAMs are especially concentrated. Such changes impact TAMs activation and polarization, thereby affecting the tumor cell response to treatment. Furthermore, the article explores the potential of targeting the lipid metabolism of TAMs as a supplementary approach to conventional cancer therapies. It reviews and evaluates current strategies for enhancing efficacy through TAMs' lipid metabolism and proposes new lipid metabolism targets as potential synergistic options for chemo-radiotherapy and immunotherapy. These efforts aim to stimulate further research in this area.
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Affiliation(s)
- Yvxiao Ren
- Department of Radiotherapy, Second Hospital of Jilin University, Changchun, Jilin, People's Republic of China
| | - Mingjie Wang
- Department of Radiotherapy, Second Hospital of Jilin University, Changchun, Jilin, People's Republic of China; NHC Key Laboratory of Radiobiology, School of Public Health, Jilin University, Changchun, Jilin, People's Republic of China
| | - Hanghang Yuan
- NHC Key Laboratory of Radiobiology, School of Public Health, Jilin University, Changchun, Jilin, People's Republic of China
| | - Zhicheng Wang
- NHC Key Laboratory of Radiobiology, School of Public Health, Jilin University, Changchun, Jilin, People's Republic of China
| | - Lei Yu
- Department of Radiotherapy, Second Hospital of Jilin University, Changchun, Jilin, People's Republic of China.
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Stylianaki EA, Mouchlis VD, Magkrioti C, Papavasileiou KD, Afantitis A, Matralis AN, Aidinis V. Identification of two novel chemical classes of Autotaxin (ATX) inhibitors using Enalos Asclepios KNIME nodes. Bioorg Med Chem Lett 2024; 103:129690. [PMID: 38447786 DOI: 10.1016/j.bmcl.2024.129690] [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: 12/28/2023] [Revised: 02/23/2024] [Accepted: 03/03/2024] [Indexed: 03/08/2024]
Abstract
Autotaxin is a secreted lysophospholipase D which is a member of the ectonucleotide pyrophosphatase/phosphodiesterase family converting extracellular lysophosphatidylcholine and other non-choline lysophospholipids, such as lysophosphatidylethanolamine and lysophosphatidylserine, to the lipid mediator lysophosphatidic acid. Autotaxin is implicated in various fibroproliferative diseases including interstitial lung diseases, such as idiopathic pulmonary fibrosis and hepatic fibrosis, as well as in cancer. In this study, we present an effort of identifying ATX inhibitors that bind to allosteric ATX binding sites using the Enalos Asclepios KNIME Node. All the available PDB crystal structures of ATX were collected, prepared, and aligned. Visual examination of these structures led to the identification of four crystal structures of human ATX co-crystallized with four known inhibitors. These inhibitors bind to five binding sites with five different binding modes. These five binding sites were thereafter used to virtually screen a compound library of 14,000 compounds to identify molecules that bind to allosteric sites. Based on the binding mode and interactions, the docking score, and the frequency that a compound comes up as a top-ranked among the five binding sites, 24 compounds were selected for in vitro testing. Finally, two compounds emerged with inhibitory activity against ATX in the low micromolar range, while their mode of inhibition and binding pattern were also studied. The two derivatives identified herein can serve as "hits" towards developing novel classes of ATX allosteric inhibitors.
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Affiliation(s)
| | - Varnavas D Mouchlis
- Department of ChemoInformatics, Novamechanics Ltd., Nicosia 1070, Cyprus; Department of Chemoinformatics, Novamechanics MIKE, Piraeus 18545, Greece; Division of Data Driven Innovation, Entelos Institute, Larnaca 6059, Cyprus
| | | | | | - Antreas Afantitis
- Department of ChemoInformatics, Novamechanics Ltd., Nicosia 1070, Cyprus; Department of Chemoinformatics, Novamechanics MIKE, Piraeus 18545, Greece; Division of Data Driven Innovation, Entelos Institute, Larnaca 6059, Cyprus.
| | - Alexios N Matralis
- Biomedical Sciences Research Center "Alexander Fleming", 16672 Vari, Greece.
| | - Vassilis Aidinis
- Biomedical Sciences Research Center "Alexander Fleming", 16672 Vari, Greece.
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Li X, Koyama Y, Taura K, Nishio T, Yoh T, Nishino H, Uemoto Y, Kimura Y, Nakamura D, Nam NH, Sato M, Seo S, Iwaisako K, Hatano E. High expression of autotaxin is associated with poor recurrence-free survival in cholangiocarcinoma. Hepatol Res 2024. [PMID: 38430513 DOI: 10.1111/hepr.14031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 02/08/2024] [Accepted: 02/12/2024] [Indexed: 03/04/2024]
Abstract
BACKGROUND AND AIM Autotaxin (ATX) is an extracellular lysophospholipase D that catalyzes the hydrolysis of lysophosphatidylcholine into lysophosphatidic acid (LPA). Recent accumulating evidence indicates the biological roles of ATX in malignant tumors. However, the expression and clinical implications of ATX in human cholangiocarcinoma (CCA) remain elusive. METHODS In this study, the expression of ATX in 97 human CCA tissues was evaluated by immunohistochemistry. Serum ATX levels were determined in CCA patients (n = 26) and healthy subjects (n = 8). Autotaxin expression in cell types within the tumor microenvironment was characterized by immunofluorescence staining. RESULTS High ATX expression in CCA tissue was significantly associated with a higher frequency of lymph node metastasis (p = 0.050). High ATX expression was correlated with shorter overall survival (p = 0.032) and recurrence-free survival (RFS) (p = 0.001) than low ATX expression. In multivariate Cox analysis, high ATX expression (p = 0.019) was an independent factor for shorter RFS. Compared with low ATX expression, high ATX expression was significantly associated with higher Ki-67-positive cell counts (p < 0.001). Serum ATX levels were significantly higher in male CCA patients than in healthy male subjects (p = 0.030). In the tumor microenvironment of CCA, ATX protein was predominantly expressed in tumor cells, cancer-associated fibroblasts, plasma cells, and biliary epithelial cells. CONCLUSIONS Our study highlights the clinical evidence and independent prognostic value of ATX in human CCA.
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Affiliation(s)
- Xuefeng Li
- Division of Hepatobiliary-Pancreatic Surgery and Transplantation, Department of Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Yukinori Koyama
- Division of Hepatobiliary-Pancreatic Surgery and Transplantation, Department of Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Kojiro Taura
- Division of Hepatobiliary-Pancreatic Surgery and Transplantation, Department of Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
- Department of Gastroenterological Surgery and Oncology, Tazuke Kofukai Medical Research Institute, Kitano Hospital, Osaka, Japan
| | - Takahiro Nishio
- Division of Hepatobiliary-Pancreatic Surgery and Transplantation, Department of Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Tomoaki Yoh
- Division of Hepatobiliary-Pancreatic Surgery and Transplantation, Department of Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Hiroto Nishino
- Division of Hepatobiliary-Pancreatic Surgery and Transplantation, Department of Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Yusuke Uemoto
- Division of Hepatobiliary-Pancreatic Surgery and Transplantation, Department of Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Yusuke Kimura
- Division of Hepatobiliary-Pancreatic Surgery and Transplantation, Department of Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Daichi Nakamura
- Division of Hepatobiliary-Pancreatic Surgery and Transplantation, Department of Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Nguyen Hai Nam
- Department of Liver Tumor, Cancer Center, Cho Ray Hospital, Ho Chi Minh City, Vietnam
| | - Motohiko Sato
- Division of Hepatobiliary-Pancreatic Surgery and Transplantation, Department of Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Satoru Seo
- Department of Surgery, Kochi Medical School, Kochi, Japan
| | - Keiko Iwaisako
- Department of Medical Life Systems, Faculty of Life and Medical Sciences, Doshisha University, Kyotanabe, Japan
| | - Etsuro Hatano
- Division of Hepatobiliary-Pancreatic Surgery and Transplantation, Department of Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
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Simonetti J, Ficili M, Sgalla G, Richeldi L. Experimental autotaxin inhibitors for the treatment of idiopathic pulmonary fibrosis. Expert Opin Investig Drugs 2024; 33:133-143. [PMID: 38299617 DOI: 10.1080/13543784.2024.2305126] [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: 10/23/2023] [Accepted: 01/10/2024] [Indexed: 02/02/2024]
Abstract
INTRODUCTION Idiopathic Pulmonary Fibrosis (IPF) is a progressive, irreversible, and fatal lung disease with unmet medical needs. Autotaxin (ATX) is an extracellular enzyme involved in the generation of lysophosphatidic acid (LPA). Preclinical and clinical data have suggested the ATX-LPAR signaling axis plays an important role in the pathogenesis and the progression of IPF. AREAS COVERED The aim of this review is to provide an update on the available evidence on autotaxin inhibitors in IPF and further details on the ongoing clinical studies involving these molecules. EXPERT OPINION The development of autotaxin inhibitors as a potential therapy for idiopathic pulmonary fibrosis has gained attention due to evidence of their involvement in the disease. Preclinical and early-phase clinical studies have explored these inhibitors' efficacy and safety, offering a novel approach in treating this disease. Combining autotaxin inhibitors with existing anti-fibrotic agents is considered for enhanced therapeutic effects. Large phase III trials assessed Ziritaxestat but yielded disappointing results, highlighting the importance of long-term observation and clinical outcomes in clinical research. Patient stratification and personalized medicine are crucial, as pulmonary fibrosis is a heterogeneous disease. Ongoing research and collaboration are essential for this advancement.
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Affiliation(s)
- Jacopo Simonetti
- Unita Operativa Complessa di Pneumologia, Dipartimento di Neuroscienze, Organi di Senso e Torace, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Rome, Italy
- Unita Operativa Complessa di Pneumologia, Dipartimento di Neuroscienze, Organi di Senso e Torace, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Marco Ficili
- Unita Operativa Complessa di Pneumologia, Dipartimento di Neuroscienze, Organi di Senso e Torace, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Giacomo Sgalla
- Unita Operativa Complessa di Pneumologia, Dipartimento di Neuroscienze, Organi di Senso e Torace, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Rome, Italy
- Unita Operativa Complessa di Pneumologia, Dipartimento di Neuroscienze, Organi di Senso e Torace, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Luca Richeldi
- Unita Operativa Complessa di Pneumologia, Dipartimento di Neuroscienze, Organi di Senso e Torace, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Rome, Italy
- Unita Operativa Complessa di Pneumologia, Dipartimento di Neuroscienze, Organi di Senso e Torace, Università Cattolica del Sacro Cuore, Rome, Italy
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Lyu B, Li J, Niemeyer B, Anderson D, Beerntsen B, Song Q. Identification, structural modeling, gene expression analysis and RNAi effect of putative phospholipase A 2 in the lone star tick Amblyomma americanum. Ticks Tick Borne Dis 2024; 15:102256. [PMID: 37734164 DOI: 10.1016/j.ttbdis.2023.102256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 08/15/2023] [Accepted: 09/05/2023] [Indexed: 09/23/2023]
Abstract
Amblyomma americanum, also known as the lone star tick, is a small arachnid that feeds on blood and can spread disease to humans and other animals. Despite the overlapped ecological niche, geographic distribution, and host selection, there is no proof that A. americanum transmits the pathogen Borrelia burgdorferi that causes Lyme disease. Studies have shown that phospholipase A2 (PLA2) may act as a tool to eliminate B. burgdorferi, but particular PLA2 genes in A. americanum have not been identified and functionally characterized. Using the de novo sequencing method, we identified 42 putative A. americanum PLA2 (pAaPLA2) homologs in the present study, of which three pAaPLA2 had calcium binding sites and canonical histidine catalytic sites. Then, we determined phylogenetic relationships, sequence alignments, and conserved protein motifs of these pAaPLA2s. Protein structural analysis demonstrated that pAaPLA2s primarily consisted of α-helices, β-sheets, and random coils. These genes were predicted to be engaged in the phospholipid metabolic process, arachidonic acid secretion, and PLA2 activity by functional annotation analysis. A transcriptional factor (Bgb) was discovered that interacted with pAaPLA2 proteins that may have unrecognized roles in regulating neuronal development. Based on the RNA-seq data, we surveyed expression profiles of key pAaPLA2-related genes to reveal putative modulatory networks of these genes. RNAi knockdown of pAaPLA2_1, a dominant isoform in A. americanum, led to decreased bacterial inhibition ability, suggesting pAaPLA2 may play an important role in mediating immune responses. Collectively, this study provides essential evidence of the identification, gene structure, phylogeny, and expression analysis of pAaPLA2 genes in A. americanum, and offers a deeper understanding of the putative borreliacidal roles in the lone star tick.
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Affiliation(s)
- Bo Lyu
- Division of Plant Science and Technology, University of Missouri, Columbia, MO 65211, USA
| | - Jingjing Li
- Division of Plant Science and Technology, University of Missouri, Columbia, MO 65211, USA
| | - Brigid Niemeyer
- Division of Plant Science and Technology, University of Missouri, Columbia, MO 65211, USA
| | - Deborah Anderson
- Department of Veterinary Pathobiology, University of Missouri, Columbia, MO, USA
| | - Brenda Beerntsen
- Division of Plant Science and Technology, University of Missouri, Columbia, MO 65211, USA; Department of Veterinary Pathobiology, University of Missouri, Columbia, MO, USA
| | - Qisheng Song
- Division of Plant Science and Technology, University of Missouri, Columbia, MO 65211, USA.
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Jiao R, Jiang W, Xu K, Luo Q, Wang L, Zhao C. Lipid metabolism analysis in esophageal cancer and associated drug discovery. J Pharm Anal 2024; 14:1-15. [PMID: 38352954 PMCID: PMC10859535 DOI: 10.1016/j.jpha.2023.08.019] [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: 04/03/2023] [Revised: 07/27/2023] [Accepted: 08/29/2023] [Indexed: 02/16/2024] Open
Abstract
Esophageal cancer is an upper gastrointestinal malignancy with a bleak prognosis. It is still being explored in depth due to its complex molecular mechanisms of occurrence and development. Lipids play a crucial role in cells by participating in energy supply, biofilm formation, and signal transduction processes, and lipid metabolic reprogramming also constitutes a significant characteristic of malignant tumors. More and more studies have found esophageal cancer has obvious lipid metabolism abnormalities throughout its beginning, progress, and treatment resistance. The inhibition of tumor growth and the enhancement of antitumor therapy efficacy can be achieved through the regulation of lipid metabolism. Therefore, we reviewed and analyzed the research results and latest findings for lipid metabolism and associated analysis techniques in esophageal cancer, and comprehensively proved the value of lipid metabolic reprogramming in the evolution and treatment resistance of esophageal cancer, as well as its significance in exploring potential therapeutic targets and biomarkers.
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Affiliation(s)
- Ruidi Jiao
- Bionic Sensing and Intelligence Center, Institute of Biomedical and Health Engineering, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong, 518000, China
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital & Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen, Guangdong, 518116, China
- School of Medicine, Southern University of Science and Technology, Shenzhen, Guangdong, 518000, China
| | - Wei Jiang
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital & Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen, Guangdong, 518116, China
| | - Kunpeng Xu
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital & Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen, Guangdong, 518116, China
| | - Qian Luo
- Bionic Sensing and Intelligence Center, Institute of Biomedical and Health Engineering, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong, 518000, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Luhua Wang
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital & Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen, Guangdong, 518116, China
- School of Medicine, Southern University of Science and Technology, Shenzhen, Guangdong, 518000, China
| | - Chao Zhao
- Bionic Sensing and Intelligence Center, Institute of Biomedical and Health Engineering, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong, 518000, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
- Shenzhen Key Laboratory of Precision Diagnosis and Treatment of Depression, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong, 518000, China
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Centonze M, Di Conza G, Lahn M, Fabregat I, Dituri F, Gigante I, Serino G, Scialpi R, Carrieri L, Negro R, Pizzuto E, Giannelli G. Autotaxin inhibitor IOA-289 reduces gastrointestinal cancer progression in preclinical models. J Exp Clin Cancer Res 2023; 42:197. [PMID: 37550785 PMCID: PMC10408149 DOI: 10.1186/s13046-023-02780-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Accepted: 07/25/2023] [Indexed: 08/09/2023] Open
Abstract
BACKGROUND Autotaxin (ATX) is a secreted enzyme that converts lysophosphatidylcholine to lysophosphatidic acid (LPA). LPA stimulates cell proliferation and migration and promotes wound repair following tissue damage. ATX levels are directly correlated with stage and grade in several human cancers. Several small molecule ATX inhibitors have been developed in recent years. IOA-289 is a potent ATX inhibitor, developed to treat cancers containing fibrosis. In this study, we tested IOA-289 treatment on different gastrointestinal tract tumor cell lines, in order to evaluate its effects on viability and motility. METHODS To determine the effects on cell viability and proliferation of treatment with increasing concentrations of IOA-289, we used the crystal violet assay, a clonogenic assay in matrigel, and we evaluated the inhibitor's effect on formation of 3D spheroids in an in vitro model. The effect of IOA-289 on cell cycle phases was analysed with a redox dye reagent. Cell migration capacity was evaluated by wound healing assay and transwell migration assay. To evaluate the pro-apoptotic effect of the inhibitor, cells were stained with Annexin V and immunofluorescence and flow cytometry analysis were performed. An antibody array was also used, to discriminate, in various samples, the differential expression of 43 proteins involved in the apoptosis pathway. RESULTS We found that IOA-289 is able to inhibit both growth and migration of gastrointestinal tract tumor cell lines, both in 2D (crystal violet assay) and 3D in vitro models (spheroid formation and clonogenic assay in matrigel). This effect is dose-dependent, and the drug is most effective when administered in FBS-free culture medium. The inhibitory effect on cell growth is due to a pro-apoptotic effect of IOA-289. Staining with FITC-conjugated Annexin V showed that IOA-289 induced a dose-dependent increase in fluorescence following incubation for 24 h, and apoptotic cells were also distinguished in flow cytometry using Annexin/PI staining. The antibody array shows that treatment with IOA-289 causes the increased expression of several pro-apoptotic proteins in all tested cell lines. CONCLUSIONS These results indicate that IOA-289 may be an effective drug for the treatment of tumors of the gastrointestinal tract, particularly those characterized by a high degree of fibrosis.
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Affiliation(s)
- Matteo Centonze
- National Institute of Gastroenterology - IRCCS "Saverio de Bellis", Via Turi 27, 70013, Castellana Grotte, Italy
| | - Giusy Di Conza
- iOnctura SA, Avenue Secheron 15, 1202, Geneva, Switzerland
| | - Michael Lahn
- iOnctura SA, Avenue Secheron 15, 1202, Geneva, Switzerland
| | - Isabel Fabregat
- TGF-β and Cancer Group, Oncobell Program, Bellvitge Biomedical Research Institute (IDIBELL) and CIBEREHD - ISCIII, Barcelona, Spain
| | - Francesco Dituri
- National Institute of Gastroenterology - IRCCS "Saverio de Bellis", Via Turi 27, 70013, Castellana Grotte, Italy
| | - Isabella Gigante
- National Institute of Gastroenterology - IRCCS "Saverio de Bellis", Via Turi 27, 70013, Castellana Grotte, Italy
| | - Grazia Serino
- National Institute of Gastroenterology - IRCCS "Saverio de Bellis", Via Turi 27, 70013, Castellana Grotte, Italy
| | - Rosanna Scialpi
- National Institute of Gastroenterology - IRCCS "Saverio de Bellis", Via Turi 27, 70013, Castellana Grotte, Italy
| | - Livianna Carrieri
- National Institute of Gastroenterology - IRCCS "Saverio de Bellis", Via Turi 27, 70013, Castellana Grotte, Italy
| | - Roberto Negro
- National Institute of Gastroenterology - IRCCS "Saverio de Bellis", Via Turi 27, 70013, Castellana Grotte, Italy
| | - Elena Pizzuto
- National Institute of Gastroenterology - IRCCS "Saverio de Bellis", Via Turi 27, 70013, Castellana Grotte, Italy
| | - Gianluigi Giannelli
- National Institute of Gastroenterology - IRCCS "Saverio de Bellis", Via Turi 27, 70013, Castellana Grotte, Italy.
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Chen X, Zhang H, Zhou X, Wang Y, Shi W. Autotaxin promotes the degradation of the mucus layer by inhibiting autophagy in mouse colitis. Mol Immunol 2023; 160:44-54. [PMID: 37356325 DOI: 10.1016/j.molimm.2023.06.002] [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: 01/02/2023] [Revised: 05/06/2023] [Accepted: 06/06/2023] [Indexed: 06/27/2023]
Abstract
Autotaxin (ATX or ENPP2) is an autocrine enzyme associated with the metabolism of various phospholipids. ATX has recently been identified as a regulatory factor in immune-related and inflammation-associated diseases, such as inflammatory bowel disease, but the exact mechanism is unclear. Here, we treated mice with recombinant ATX protein or an ATX inhibitor to investigate the effect of ATX on colitis in mice and the underlying mechanism. In a mouse model of colitis, ATX expression was increased, autophagy was impaired, and the mucus barrier was disrupted. Recombinant ATX protein promoted intestinal inflammation, inhibited autophagy, and disrupted the mucus barrier, while an ATX inhibitor had the opposite effect. Next, we treated mice that received ATX with an autophagy activator and an adenosine 5'-monophosphate-activated protein kinase (AMPK) agonist. We observed that autophagy activator and AMPK agonist could repair the mucus barrier and alleviate intestinal inflammation in ATX-treated mice. In vitro, we obtained consistent results. Thus, we concluded that ATX could inhibit autophagy through the AMPK pathway, which consequently disordered the mucus barrier and aggravated intestinal inflammation.
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Affiliation(s)
- Xiaoyan Chen
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, China; The State Key Laboratory of Digestive Disease, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Hui Zhang
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Xiaojiang Zhou
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Yunwu Wang
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Wenjie Shi
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, China.
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Zhang C, Liu Y, Zhou Q, Fan H, Liu X, Hu J. Recent research advances in ATX inhibitors: An overview of primary literature. Bioorg Med Chem 2023; 90:117374. [PMID: 37354726 DOI: 10.1016/j.bmc.2023.117374] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 05/24/2023] [Accepted: 06/07/2023] [Indexed: 06/26/2023]
Abstract
The autoglobulin gene is the main enzyme for circulating LPA production and has lysophosphatidylcholine D activity, which catalyzes the production of lysophosphatidic acid and choline with lysophosphatidylcholine as substrate. A growing body of experimental evidence suggests that autoglobulin is involved in the pathogenesis of a variety of diseases. This review summarizes the different structural ATX inhibitors classified according to their binding mode to the ATX triple orientation site, and summarizes the conformational relationships and molecular docking of each type with ATX structure, hoping to contribute to the development of novel ATX inhibitors.
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Affiliation(s)
- Cheng Zhang
- Weifang Medical University, No. 7166 Baotong Road, Weifang 261053, PR China
| | - Yue Liu
- Weifang Medical University, No. 7166 Baotong Road, Weifang 261053, PR China
| | - Qinjiang Zhou
- Weifang Medical University, No. 7166 Baotong Road, Weifang 261053, PR China
| | - Hongze Fan
- Weifang Medical University, No. 7166 Baotong Road, Weifang 261053, PR China
| | - Xiaoxiao Liu
- Weifang Medical University, No. 7166 Baotong Road, Weifang 261053, PR China.
| | - Jinxing Hu
- Weifang Medical University, No. 7166 Baotong Road, Weifang 261053, PR China.
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Qu M, Long Y, Wang Y, Yin N, Zhang X, Zhang J. Hypoxia Increases ATX Expression by Histone Crotonylation in a HIF-2α-Dependent Manner. Int J Mol Sci 2023; 24:ijms24087031. [PMID: 37108194 PMCID: PMC10138485 DOI: 10.3390/ijms24087031] [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: 02/02/2023] [Revised: 04/01/2023] [Accepted: 04/07/2023] [Indexed: 04/29/2023] Open
Abstract
Autotaxin (ATX), the key enzyme that generates lysophosphatidic acid (LPA) from lysophosphatidylcholine (LPC), is involved in tumorigenesis through the ATX-LPA axis and is regarded as a valuable target in tumor therapy. Hypoxia is a major feature of solid tumors and contributes to tumor development with striking alterations in the gene expression profile. Here, we show that hypoxia induces ATX expression in a hypoxia-inducible factor (HIF) 2α-dependent fashion in human colon cancer SW480 cells. HIF-2α is directly bound to specific hypoxia response elements (HREs) in the ATX promoter. Under hypoxic conditions, knockout or inhibition of ATX suppressed the migration of SW480 cells, which could be rescued by the addition of LPA, suggesting that the induction of ATX during hypoxia promotes cancer cell migration through the ATX-LPA axis. Further studies showed that ATX expression was induced by HIF-2α through recruiting p300/CBP, which led to crotonylation but not acetylation of histone H3 in the ATX promoter region during hypoxia. Moreover, elevation of cellular histone crotonylation levels could induce ATX expression under normoxic conditions. In conclusion, our findings reveal that ATX is induced in SW480 cells during hypoxia by histone crotonylation in a HIF-2α-dependent manner, while as a novel mechanism of ATX expression regulation, the upregulation of ATX expression by histone crotonylation is not confined to hypoxia.
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Affiliation(s)
- Mengxia Qu
- The Key Laboratory of Cell Proliferation and Regulation Biology, Ministry of Education, Department of Biology, College of Life Sciences, Beijing Normal University, Beijing 100875, China
| | - Yang Long
- The Key Laboratory of Cell Proliferation and Regulation Biology, Ministry of Education, Department of Biology, College of Life Sciences, Beijing Normal University, Beijing 100875, China
| | - Yuqin Wang
- The Key Laboratory of Cell Proliferation and Regulation Biology, Ministry of Education, Department of Biology, College of Life Sciences, Beijing Normal University, Beijing 100875, China
- Brown Foundation Institute of Molecular Medicine for the Prevention of Human Diseases, The University of Texas-Health Science Center at Houston, Houston, TX 77030, USA
| | - Nan Yin
- The Key Laboratory of Cell Proliferation and Regulation Biology, Ministry of Education, Department of Biology, College of Life Sciences, Beijing Normal University, Beijing 100875, China
| | - Xiaotian Zhang
- The Key Laboratory of Cell Proliferation and Regulation Biology, Ministry of Education, Department of Biology, College of Life Sciences, Beijing Normal University, Beijing 100875, China
| | - Junjie Zhang
- The Key Laboratory of Cell Proliferation and Regulation Biology, Ministry of Education, Department of Biology, College of Life Sciences, Beijing Normal University, Beijing 100875, China
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11
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Stylianaki EA, Magkrioti C, Ladopoulou EM, Papavasileiou KD, Lagarias P, Melagraki G, Samiotaki M, Panayotou G, Dedos SG, Afantitis A, Aidinis V, Matralis AN. "Hit" to lead optimization and chemoinformatic studies for a new series of Autotaxin inhibitors. Eur J Med Chem 2023; 249:115130. [PMID: 36702053 DOI: 10.1016/j.ejmech.2023.115130] [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: 04/29/2022] [Revised: 01/09/2023] [Accepted: 01/15/2023] [Indexed: 01/25/2023]
Abstract
Robust experimental evidence has highlighted the role of Autotaxin (ATX)/Lysophosphatidic acid (LPA) axis not only in the pathogenesis of chronic inflammatory conditions and especially in fibroproliferative diseases but also in several types of cancer. As a result, different series of substrate-, lipid-based and small-molecule ATX inhibitors have been identified thus far by both academia and pharma. The "crowning achievement" of these drug discovery campaigns was the development and entry of the first-in-class ATX inhibitor (ziritaxestat, GLPG-1690) in advanced clinical trials against idiopathic pulmonary fibrosis. Herein, the potency optimization efforts of a new series of Autotaxin inhibitors, namely 2-substituted-2,6-dihydro-4H-thieno[3,4-c]pyrazol-1-substituted amide, is described using a previously identified novel chemical scaffold as a "hit". The mode of inhibition of the most promising ATX inhibitors was investigated, while their cellular activity, aqueous solubility and cytotoxicity were evaluated. Our pharmacological results were corroborated by chemoinformatic tools (molecular docking and molecular dynamics simulations) deployed, to provide insight into the binding mechanism of the synthesized inhibitors to ATX.
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Affiliation(s)
- Elli-Anna Stylianaki
- Bioinnovation Institute, Biomedical Sciences Research Center "Alexander Fleming, Athens, Greece
| | - Christiana Magkrioti
- Bioinnovation Institute, Biomedical Sciences Research Center "Alexander Fleming, Athens, Greece
| | - Eleni M Ladopoulou
- Bioinnovation Institute, Biomedical Sciences Research Center "Alexander Fleming, Athens, Greece; Department of Biology, National and Kapodistrian University of Athens, Zografou, Athens, Greece
| | | | | | - Georgia Melagraki
- Division of Physical Sciences and Applications, Hellenic Military Academy, Vari, Greece
| | - Martina Samiotaki
- Bioinnovation Institute, Biomedical Sciences Research Center "Alexander Fleming, Athens, Greece
| | - George Panayotou
- Bioinnovation Institute, Biomedical Sciences Research Center "Alexander Fleming, Athens, Greece
| | - Skarlatos G Dedos
- Department of Biology, National and Kapodistrian University of Athens, Zografou, Athens, Greece
| | - Antreas Afantitis
- NovaMechanics Ltd, Larnaca, Cyprus; NovaMechanics MIKE, Piraeus, Greece.
| | - Vassilis Aidinis
- Bioinnovation Institute, Biomedical Sciences Research Center "Alexander Fleming, Athens, Greece.
| | - Alexios N Matralis
- Bioinnovation Institute, Biomedical Sciences Research Center "Alexander Fleming, Athens, Greece.
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12
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Méaux MN, Regnier M, Portefaix A, Borel O, Alioli C, Peyruchaud O, Legrand M, Bacchetta J. Circulating autotaxin levels in healthy teenagers: Data from the Vitados cohort. Front Pediatr 2023; 11:1094705. [PMID: 36861069 PMCID: PMC9969100 DOI: 10.3389/fped.2023.1094705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Accepted: 01/16/2023] [Indexed: 02/17/2023] Open
Abstract
Autotaxin (ATX) is a secreted enzyme with a lysophospholipase D activity, mainly secreted by adipocytes and widely expressed. Its major function is to convert lysophosphatidylcholine (LPC) into lysophosphatidic acid (LPA), an essential bioactive lipid involved in multiple cell processes. The ATX-LPA axis is increasingly studied because of its involvement in numerous pathological conditions, more specifically in inflammatory or neoplastic diseases, and in obesity. Circulating ATX levels gradually increase with the stage of some pathologies, such as liver fibrosis, thus making them a potentially interesting non-invasive marker for fibrosis estimation. Normal circulating levels of ATX have been established in healthy adults, but no data exist at the pediatric age. The aim of our study is to describe the physiological concentrations of circulating ATX levels in healthy teenagers through a secondary analysis of the VITADOS cohort. Our study included 38 teenagers of Caucasian origin (12 males, 26 females). Their median age was 13 years for males and 14 years for females, ranging from Tanner 1 to 5. BMI was at the 25th percentile for males and 54th percentile for females, and median blood pressure was normal. ATX median levels were 1,049 (450-2201) ng/ml. There was no difference in ATX levels between sexes in teenagers, which was in contrast to the male and female differences described in the adult population. ATX levels significantly decreased with age and pubertal status, reaching adult levels at the end of puberty. Our study also suggested positive correlations between ATX levels and blood pressure (BP), lipid metabolism, and bone biomarkers. However, except for LDL cholesterol, these factors were also significantly correlated with age, which might be a confounding factor. Still, a correlation between ATX and diastolic BP was described in obese adult patients. No correlation was found between ATX levels and inflammatory marker C-reactive protein (CRP), Body Mass Index (BMI), and biomarkers of phosphate/calcium metabolism. In conclusion, our study is the first to describe the decline in ATX levels with puberty and the physiological concentrations of ATX levels in healthy teenagers. It will be of utmost importance when performing clinical studies in children with chronic diseases to keep these kinetics in mind, as circulating ATX might become a non-invasive prognostic biomarker in pediatric chronic diseases.
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Affiliation(s)
- Marie-Noëlle Méaux
- INSERM, UMR 1033, Lyon, France.,Centre de Référence des Maladies Rares du Calcium et du Phosphate, filière OSCAR, Lyon, France.,Service de Néphrologie, Rhumatologie et Dermatologie Pédiatriques, Hôpital Femme Mère Enfant, Hospices Civils de Lyon, Bron, France
| | - Maitena Regnier
- INSERM, UMR 1033, Lyon, France.,Centre de Référence des Maladies Rares du Calcium et du Phosphate, filière OSCAR, Lyon, France.,Service de Néphrologie, Rhumatologie et Dermatologie Pédiatriques, Hôpital Femme Mère Enfant, Hospices Civils de Lyon, Bron, France
| | - Aurélie Portefaix
- Centre d'Investigation Clinique, CIC 1407, Hospices Civils de Lyon, Bron, France
| | | | | | | | - Mélanie Legrand
- INSERM, UMR 1033, Lyon, France.,Faculté de Médecine Lyon Est, Université Claude Bernard Lyon 1, Lyon, France.,Service de Rhumatologie, Hôpital Edouard Herriot, Hospices Civils de Lyon, Lyon, France
| | - Justine Bacchetta
- INSERM, UMR 1033, Lyon, France.,Centre de Référence des Maladies Rares du Calcium et du Phosphate, filière OSCAR, Lyon, France.,Service de Néphrologie, Rhumatologie et Dermatologie Pédiatriques, Hôpital Femme Mère Enfant, Hospices Civils de Lyon, Bron, France.,Faculté de Médecine Lyon Est, Université Claude Bernard Lyon 1, Lyon, France
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13
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Vít O, Petrák J. Autotaxin and Lysophosphatidic Acid Signalling: the Pleiotropic Regulatory Network in Cancer. Folia Biol (Praha) 2023; 69:149-162. [PMID: 38583176 DOI: 10.14712/fb2023069050149] [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] [Indexed: 04/09/2024]
Abstract
Autotaxin, also known as ecto-nucleotide pyrophosphatase/phosphodiesterase family member 2, is a secreted glycoprotein that plays multiple roles in human physiology and cancer pathology. This protein, by converting lysophosphatidylcholine into lysophosphatidic acid, initiates a complex signalling cascade with significant biological implications. The article outlines the autotaxin gene and protein structure, expression regulation and physiological functions, but focuses mainly on the role of autotaxin in cancer development and progression. Autotaxin and lysophosphatidic acid signalling influence several aspects of cancer, including cell proliferation, migration, metastasis, therapy resistance, and interactions with the immune system. The potential of autotaxin as a diagnostic biomarker and promising drug target is also examined.
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Affiliation(s)
- Ondřej Vít
- BIOCEV, First Faculty of Medicine, Charles University, Vestec, Czech Republic.
| | - Jiří Petrák
- BIOCEV, First Faculty of Medicine, Charles University, Vestec, Czech Republic
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14
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Discovery of novel tetrahydropyrido[4,3-d]pyrimidine analogs as potent autotaxin regulators with impressive tumor suppression effects. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2022.134108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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15
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Drosouni A, Panagopoulou M, Aidinis V, Chatzaki E. Autotaxin in Breast Cancer: Role, Epigenetic Regulation and Clinical Implications. Cancers (Basel) 2022; 14:5437. [PMID: 36358855 PMCID: PMC9658281 DOI: 10.3390/cancers14215437] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 10/31/2022] [Accepted: 10/31/2022] [Indexed: 08/02/2023] Open
Abstract
Autotaxin (ATX), the protein product of Ectonucleotide Pyrophosphatase Phosphodiesterase 2 (ENPP2), is a secreted lysophospholipase D (lysoPLD) responsible for the extracellular production of lysophosphatidic acid (LPA). ATX-LPA pathway signaling participates in several normal biological functions, but it has also been connected to cancer progression, metastasis and inflammatory processes. Significant research has established a role in breast cancer and it has been suggested as a therapeutic target and/or a clinically relevant biomarker. Recently, ENPP2 methylation was described, revealing a potential for clinical exploitation in liquid biopsy. The current review aims to gather the latest findings about aberrant signaling through ATX-LPA in breast cancer and discusses the role of ENPP2 expression and epigenetic modification, giving insights with translational value.
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Affiliation(s)
- Andrianna Drosouni
- Laboratory of Pharmacology, Medical School, Democritus University of Thrace, 68100 Alexandroupolis, Greece
| | - Maria Panagopoulou
- Laboratory of Pharmacology, Medical School, Democritus University of Thrace, 68100 Alexandroupolis, Greece
- Institute of Agri-Food and Life Sciences, Hellenic Mediterranean University Research Centre, 71410 Heraklion, Greece
| | - Vassilis Aidinis
- Institute of BioInnovation, Biomedical Sciences Research Center Alexander Fleming, 16672 Athens, Greece
| | - Ekaterini Chatzaki
- Laboratory of Pharmacology, Medical School, Democritus University of Thrace, 68100 Alexandroupolis, Greece
- Institute of Agri-Food and Life Sciences, Hellenic Mediterranean University Research Centre, 71410 Heraklion, Greece
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16
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Autotaxin Has a Negative Role in Systemic Inflammation. Int J Mol Sci 2022; 23:ijms23147920. [PMID: 35887265 PMCID: PMC9322786 DOI: 10.3390/ijms23147920] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 07/08/2022] [Accepted: 07/14/2022] [Indexed: 02/05/2023] Open
Abstract
The pathogenesis of sepsis involves complex interactions and a systemic inflammatory response leading eventually to multiorgan failure. Autotaxin (ATX, ENPP2) is a secreted glycoprotein largely responsible for the extracellular production of lysophosphatidic acid (LPA), which exerts multiple effects in almost all cell types through its at least six G-protein-coupled LPA receptors (LPARs). Here, we investigated a possible role of the ATX/LPA axis in sepsis in an animal model of endotoxemia as well as in septic patients. Mice with 50% reduced serum ATX levels showed improved survival upon lipopolysaccharide (LPS) stimulation compared to their littermate controls. Similarly, mice bearing the inducible inactivation of ATX and presenting with >70% decreased ATX levels were even more protected against LPS-induced endotoxemia; however, no significant effects were observed upon the chronic and systemic transgenic overexpression of ATX. Moreover, the genetic deletion of LPA receptors 1 and 2 did not significantly affect the severity of the modelled disease, suggesting that alternative receptors may mediate LPA effects upon sepsis. In translation, ATX levels were found to be elevated in the sera of critically ill patients with sepsis in comparison with their baseline levels upon ICU admission. Therefore, the results indicate a role for ATX in LPS-induced sepsis and suggest possible therapeutic benefits of pharmacologically targeting ATX in severe, systemic inflammatory disorders.
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17
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Sueajai J, Sutjarit N, Boonmuen N, Auparakkitanon S, Noumjad N, Suksamrarn A, Vinayavekhin N, Piyachaturawat P. Lowering of lysophosphatidylcholines in ovariectomized rats by Curcuma comosa. PLoS One 2022; 17:e0268179. [PMID: 35588422 PMCID: PMC9119514 DOI: 10.1371/journal.pone.0268179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Accepted: 04/24/2022] [Indexed: 11/19/2022] Open
Abstract
Decline of ovarian function in menopausal women increases metabolic disease risk. Curcuma comosa extract and its major compound, (3R)-1,7-diphenyl-(4E,6E)-4,6-heptadien-3-ol (DPHD), improved estrogen-deficient ovariectomized (OVX) rat metabolic disturbances. However, information on their effects on metabolites is limited. Here, we investigated the impacts of C. comosa ethanol extract and DPHD on 12-week-old OVX rat metabolic disturbances, emphasizing the less hydrophobic metabolites. Metabolomics analysis of OVX rat serum showed a marked increase compared to sham-operated rat (SHAM) in levels of lysophosphatidylcholines (lysoPCs), particularly lysoPC (18:0) and lysoPC (16:0), and of arachidonic acid (AA), metabolites associated with inflammation. OVX rat elevated lysoPCs and AA levels reverted to SHAM levels following treatments with C. comosa ethanol extract and DPHD. Overall, our studies demonstrate the effect of C. comosa extract in ameliorating the metabolic disturbances caused by ovariectomy, and the elevated levels of bioactive lipid metabolites, lysoPCs and AA, may serve as potential biomarkers of menopausal metabolic disturbances.
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Affiliation(s)
- Jetjamnong Sueajai
- Toxicology Graduate Program, Faculty of Science, Mahidol University, Bangkok, Thailand
- Department of Pathology, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Nareerat Sutjarit
- Graduate Program in Nutrition, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Nittaya Boonmuen
- Department of Physiology, Faculty of Science, Mahidol University, Bangkok, Thailand
| | - Saranya Auparakkitanon
- Department of Pathology, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Nantida Noumjad
- Department of Pathology, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Apichart Suksamrarn
- Department of Chemistry, Faculty of Science, Ramkhamhaeng University, Bangkok, Thailand
| | - Nawaporn Vinayavekhin
- Center of Excellence in Natural Products Chemistry, Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
- Center of Excellence in Biocatalyst and Sustainable Biotechnology, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
- * E-mail:
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18
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Isshiki T, Shimizu H, Sakamoto S, Yamasaki A, Miyoshi S, Nakamura Y, Homma S, Kishi K. Serum autotaxin levels in chronic disease and acute exacerbation of fibrosing interstitial lung disease. ERJ Open Res 2022; 8:00683-2021. [PMID: 35415191 PMCID: PMC8995540 DOI: 10.1183/23120541.00683-2021] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2021] [Accepted: 02/25/2022] [Indexed: 11/14/2022] Open
Abstract
Background Autotaxin (ATX) is an ecto-enzyme that catalyses the hydrolysis of lysophospholipids to the lipid mediator lysophosphatidic acid (LPA). LPA/ATX signalling has emerged as a new therapeutic target for pulmonary fibrosis; however, the serum levels and dynamics of ATX during the clinical course of fibrosing interstitial lung disease (ILD) remain unknown. This study sought to examine the serum ATX levels in fibrosing ILD in the chronic phase and in acute exacerbation of idiopathic pulmonary fibrosis (AE-IPF). We aimed to elucidate the association between serum ATX level and clinical characteristics including disease progression and prognosis. Methods In total, 119 patients with fibrosing ILD and 38 healthy volunteers as controls were enrolled in the study and their serum ATX activity was analysed. We also included six male patients with AE-IPF in order to analyse the changes in serum ATX at the onset of AE-IPF. Results Patients with fibrosing ILD showed significantly higher serum ATX levels compared with healthy controls in both sexes. Per cent change in forced vital capacity after 1 year correlated with serum ATX levels in female patients. High serum ATX levels (>0.721 mg· L−1) were associated with worse outcome in survival curve and multivariate analysis of male patients. Serum ATX activity decreased after the onset of AE-IPF. Conclusion Serum ATX levels were significantly higher in patients with fibrosing ILD compared with healthy controls, and this was associated with disease progression and outcome. This suggests the potential of serum ATX as a promising biomarker for the treatment of fibrosing ILD. Serum ATX levels are higher in fibrosing ILD than in healthy controls; this is associated with disease progression and outcome. Serum ATX levels decrease at the onset of AE-IPF.https://bit.ly/3hLR9jN
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19
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Cao H, Chung ACK, Ming X, Mao D, Lee HM, Cao X, Rutter GA, Chan JCN, Tian XY, Kong APS. Autotaxin signaling facilitates β cell dedifferentiation and dysfunction induced by Sirtuin 3 deficiency. Mol Metab 2022; 60:101493. [PMID: 35398277 PMCID: PMC9048116 DOI: 10.1016/j.molmet.2022.101493] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 03/11/2022] [Accepted: 04/01/2022] [Indexed: 12/03/2022] Open
Abstract
Objective β cell dedifferentiation may underlie the reversible reduction in pancreatic β cell mass and function in type 2 diabetes (T2D). We previously reported that β cell-specific Sirt3 knockout (Sirt3f/f;Cre/+) mice developed impaired glucose tolerance and glucose-stimulated insulin secretion after feeding with high fat diet (HFD). RNA sequencing showed that Sirt3-deficient islets had enhanced expression of Enpp2 (Autotaxin, or ATX), a secreted lysophospholipase which produces lysophosphatidic acid (LPA). Here, we hypothesized that activation of the ATX/LPA pathway contributed to pancreatic β cell dedifferentiation in Sirt3-deficient β cells. Methods We applied LPA, or lysophosphatidylcoline (LPC), the substrate of ATX for producing LPA, to MIN6 cell line and mouse islets with altered Sirt3 expression to investigate the effect of LPA on β cell dedifferentiation and its underlying mechanisms. To examine the pathological effects of ATX/LPA pathway, we injected the β cell selective adeno-associated virus (AAV-Atx-shRNA) or negative control AAV-scramble in Sirt3f/f and Sirt3f/f;Cre/+ mice followed by 6-week of HFD feeding. Results In Sirt3f/f;Cre/+ mouse islets and Sirt3 knockdown MIN6 cells, ATX upregulation led to increased LPC with increased production of LPA. The latter not only induced reversible dedifferentiation in MIN6 cells and mouse islets, but also reduced glucose-stimulated insulin secretion from islets. In MIN6 cells, LPA induced phosphorylation of JNK/p38 MAPK which was accompanied by β cell dedifferentiation. The latter was suppressed by inhibitors of LPA receptor, JNK, and p38 MAPK. Importantly, inhibiting ATX in vivo improved insulin secretion and reduced β cell dedifferentiation in HFD-fed Sirt3f/f;Cre/+ mice. Conclusions Sirt3 prevents β cell dedifferentiation by inhibiting ATX expression and upregulation of LPA. These findings support a long-range signaling effect of Sirt3 which modulates the ATX-LPA pathway to reverse β cell dysfunction associated with glucolipotoxicity. Sirtuin 3 (Sirt3) deletion upregulates autotaxin/ATX, the enzyme converting lysophosphatidylcholine (LPC) to lysophosphatidic acid (LPA). LPA induces dedifferentiation in β cell line and primary islet through LPA receptor-MAPK p38 and JNK signaling. ATX knockdown ameliorates LPA induced β cell dedifferentiation and improves insulin secretion in obese Sirt3 knockout mice.
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Affiliation(s)
- Huanyi Cao
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong SAR, China; Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Arthur C K Chung
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Xing Ming
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong SAR, China; Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Dandan Mao
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong SAR, China; Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Heung Man Lee
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong SAR, China; Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China; Hong Kong Institute of Diabetes and Obesity, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Xiaoyun Cao
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Guy A Rutter
- CR-CHUM and Université de Montréal, Montréal, QC, Canada; Section of Cell Biology and Functional Genomics, Division of Diabetes, Endocrinology and Metabolism, Department of Metabolism, Digestion and Reproduction, Imperial College London, London, UK; Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore
| | - Juliana C N Chan
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong SAR, China; Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China; Hong Kong Institute of Diabetes and Obesity, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Xiao Yu Tian
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China.
| | - Alice P S Kong
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong SAR, China; Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China; Hong Kong Institute of Diabetes and Obesity, The Chinese University of Hong Kong, Hong Kong SAR, China.
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20
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Murakami K, Tamada T, Saigusa D, Miyauchi E, Nara M, Ichinose M, Kurano M, Yatomi Y, Sugiura H. Urine autotaxin levels reflect the disease activity of sarcoidosis. Sci Rep 2022; 12:4372. [PMID: 35288647 PMCID: PMC8921313 DOI: 10.1038/s41598-022-08388-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Accepted: 03/04/2022] [Indexed: 12/17/2022] Open
Abstract
Since the clinical outcome of patients with sarcoidosis is still unpredictable, a good prognostic biomarker is necessary. Autotaxin (ATX) and phosphatidylserine-specific phospholipase A1 (PS-PLA1) function as main enzymes to produce lysophospholipids (LPLs), and these enzymes are attracting attention as useful biomarkers for several chronic inflammatory diseases. Here, we investigated the relationships between LPLs-producing enzymes and the disease activity of sarcoidosis. In total, 157 patients with sarcoidosis (active state, 51%) were consecutively enrolled. Using plasma or urine specimens, we measured the values of LPLs-producing enzymes. Urine ATX (U-ATX) levels were significantly lower in the active state compared to those in the inactive state, while the plasma ATX (P-ATX) and PS-PLA1 levels showed no significant difference between these two states. Concerning the comparison with existing clinical biomarkers for sarcoidosis, U-ATX showed a weak negative correlation to ACE, P-ATX a weak positive correlation to both ACE and sIL-2R, and PS-PLA1 a weak positive one to sIL-2R. Notably, only the U-ATX levels inversely fluctuated depending on the status of disease activity whether OCS had been used or not. These findings suggest that U-ATX is likely to be a novel and useful molecule for assessing the disease activity of sarcoidosis.
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Lei H, Wang X, Zhao G, Li T, Cui Y, Wu H, Yang J, Jiang N, Zhai X. Design, synthesis and promising anti-tumor efficacy of novel imidazo[1,2-a]pyridine derivatives as potent autotaxin allosteric inhibitors. Eur J Med Chem 2022; 236:114307. [DOI: 10.1016/j.ejmech.2022.114307] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 03/04/2022] [Accepted: 03/17/2022] [Indexed: 11/03/2022]
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22
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Lei H, Li Z, Li T, Wu H, Yang J, Yang X, Yang Y, Jiang N, Zhai X. Novel imidazo[1,2-a]pyridine derivatives as potent ATX allosteric inhibitors: Design, synthesis and promising in vivo anti-fibrotic efficacy in mice lung model. Bioorg Chem 2021; 120:105590. [PMID: 34998121 DOI: 10.1016/j.bioorg.2021.105590] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2021] [Revised: 12/19/2021] [Accepted: 12/27/2021] [Indexed: 12/11/2022]
Abstract
Aiming to develop novel allosteric autotaxin (ATX) inhibitors, hybrid strategy was utilized by assembling the benzyl carbamate fragment in PF-8380 onto the imidazo[1,2-a]pyridine skeleton of GLPG-1690. The piperazine moiety in GLPG-1690 was replaced with phenyl ring to enhance the π-π interactions with adjacent residues. In the light of FS-3 based ATX enzymatic assay, further structure-guided optimizations were implemented by exploring the substituents within the carbamate aromatic moiety and examining the effect of the 2-ethyl. Eventually, 13c bearing 1,3-benzodioxole and 2-hydroxyethyl piperazine group was identified as a powerful ATX inhibitor with an IC50 value of 2.7 nM. Subsequently, 13c was forwarded into an in vivo bleomycin-induced mice lung fibrosis model. In histopathological and immunohistochemical assays, 13c could typically alleviate the severity of fibrosis tissues and effectively reduce the deposition of fibrotic biomarker α-SMA. At a dose of 60 mg/kg, 13c was observed equivalent or even better potency than GLPG-1690 with a significant inhibition of the in vivo ATX activity. Except for the fundamental H-bond and π-π interactions, an extra H-bond between the 1,3-benzodioxole (O atom) and Phe306 offered great rationale in constraining the binding conformation of 13c. Finally, binding free energy calculation was conducted to assist in the efficient identification of allosteric ATX inhibitors.
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Affiliation(s)
- Hongrui Lei
- Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Zhen Li
- Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Tong Li
- Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Huinan Wu
- Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Jing Yang
- Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Xinlian Yang
- Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Yu Yang
- Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Nan Jiang
- Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Xin Zhai
- Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China.
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Roy A, Sarkar T, Datta S, Maiti A, Chakrabarti M, Mondal T, Mondal C, Banerjee A, Roy S, Mukherjee S, Muley P, Chakraborty S, Banerjee M, Kundu M, Roy KK. Structure-based discovery of (S)-2-amino-6-(4-fluorobenzyl)-5,6,11,11a-tetrahydro-1H-imidazo[1',5':1,6]pyrido[3,4-b]indole-1,3(2H)-dione as low nanomolar, orally bioavailable autotaxin inhibitor. Chem Biol Drug Des 2021; 99:496-503. [PMID: 34951520 DOI: 10.1111/cbdd.14017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 12/10/2021] [Accepted: 12/21/2021] [Indexed: 01/06/2023]
Abstract
Inhibition of extracellular secreted enzyme autotaxin (ATX) represents an attractive strategy for the development of new therapeutics to treat various diseases and a few inhibitors entered in clinical trials. We herein describe structure-based design, synthesis, and biological investigations revealing a potent and orally bioavailable ATX inhibitor 1. During the molecular docking and scoring studies within the ATX enzyme (PDB-ID: 4ZGA), the S-enantiomer (Gscore = -13.168 kcal/mol) of the bound ligand PAT-494 scored better than its R-enantiomer (Gscore = -9.562 kcal/mol) which corroborated with the reported observation and analysis of the results suggested the scope of manipulation of the hydantoin substructure in PAT-494. Accordingly, the docking-based screening of a focused library of 10 compounds resulted in compound 1 as a better candidate for pharmacological studies. Compound 1 was synthesized from L-tryptophan and evaluated against ATX enzymatic activities with an IC50 of 7.6 and 24.6 nM in biochemical and functional assays, respectively. Further, ADME-PK studies divulged compound 1 as non-cytotoxic (19.02% cell growth inhibition at 20 μM in human embryonic kidney cells), metabolically stable against human liver microsomes (CLint = 15.6 μl/min/mg; T1/2 = 113.2 min) with solubility of 4.82 μM and orally bioavailable, demonstrating its potential to be used for in vivo experiments.
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Affiliation(s)
- Ashis Roy
- TCG Lifesciences Pvt. Ltd., Kolkata, India
| | | | | | - Arup Maiti
- TCG Lifesciences Pvt. Ltd., Kolkata, India
| | | | | | | | | | | | | | | | | | | | | | - Kuldeep K Roy
- Department of Pharmaceutical Sciences, School of Health Sciences, UPES, Dehradun, India
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Deng W, Chen F, Zhou Z, Huang Y, Lin J, Zhang F, Xiao G, Liu C, Liu C, Xu L. Hepatitis B Virus Promotes Hepatocellular Carcinoma Progression Synergistically With Hepatic Stellate Cells via Facilitating the Expression and Secretion of ENPP2. Front Mol Biosci 2021; 8:745990. [PMID: 34805271 PMCID: PMC8602366 DOI: 10.3389/fmolb.2021.745990] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Accepted: 10/13/2021] [Indexed: 12/22/2022] Open
Abstract
Background: Hepatitis B virus (HBV) infection is a major risk factor causing hepatocellular carcinoma (HCC) development, but the molecular mechanisms are not fully elucidated. It has been reported that virus infection induces ectonucleotide pyrophosphatase-phosphodiesterase 2 (ENPP2) expression, the latter participates in tumor progression. Therefore, the aim of the present study was to investigate whether HBV induced HCC malignancy via ENPP2. Methods: HCC patient clinical data were collected and prognosis was analyzed. Transient transfection and stable ectopic expression of the HBV genome were established in hepatoma cell lines. Immunohistochemical staining, RT-qPCR, western blot, and ELISA assays were used to detect the expression and secretion of ENPP2. Finally, CCK-8, colony formation, and migration assays as well as a subcutaneous xenograft mouse model were used to investigate the influence of HBV infection, ENPP2 expression, and activated hepatic stellate cells (aHSCs) on HCC progression in vitro and in vivo. Results: The data from cancer databases indicated that the level of ENPP2 was significant higher in HCC compared within normal liver tissues. Clinical relevance analysis using 158 HCC patients displayed that ENPP2 expression was positively correlated with poor overall survival and disease-free survival. Statistical analysis revealed that compared to HBV-negative HCC tissues, HBV-positive tissues expressed a higher level of ENPP2. In vitro, HBV upregulated ENPP2 expression and secretion in hepatoma cells and promoted hepatoma cell proliferation, colony formation, and migration via enhancement of ENPP2; downregulation of ENPP2 expression or inhibition of its function suppressed HCC progression. In addition, aHSCs strengthened hepatoma cell proliferation, migration in vitro, and promoted tumorigenesis synergistically with HBV in vivo; a loss-function assay further verified that ENPP2 is essential for HBV/aHSC-induced HCC progression. Conclusion: HBV enhanced the expression and secretion of ENPP2 in hepatoma cells, combined with aHSCs to promote HCC progression via ENPP2.
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Affiliation(s)
- Wanyu Deng
- Department of Biliary Pancreatic Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.,College of Life Science, Shangrao Normal University, Shangrao, China
| | - Fu Chen
- College of Life Science, Shangrao Normal University, Shangrao, China
| | - Ziyu Zhou
- Department of Biliary Pancreatic Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Yipei Huang
- Department of Biliary Pancreatic Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Junlong Lin
- Department of Biliary Pancreatic Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Fapeng Zhang
- Department of Biliary Pancreatic Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Gang Xiao
- Department of Biliary Pancreatic Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Chaoqun Liu
- Department of Biliary Pancreatic Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Chao Liu
- Department of Biliary Pancreatic Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Leibo Xu
- Department of Biliary Pancreatic Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
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25
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Jia Y, Li Y, Xu XD, Tian Y, Shang H. Design and Development of Autotaxin Inhibitors. Pharmaceuticals (Basel) 2021; 14:ph14111203. [PMID: 34832985 PMCID: PMC8622848 DOI: 10.3390/ph14111203] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 11/18/2021] [Accepted: 11/19/2021] [Indexed: 12/18/2022] Open
Abstract
Autotaxin (ATX) is the only enzyme of the ecto-nucleotide pyrophosphatase/phosphodiesterase (ENPP2) family with lysophospholipase D (lysoPLD) activity, which is mainly responsible for the hydrolysis of extracellular lysophosphatidylcholine (LPC) into lysophosphatidic acid (LPA). LPA can induce various responses, such as cell proliferation, migration, and cytokine production, through six G protein-coupled receptors (LPA1-6). This signaling pathway is associated with metabolic and inflammatory disorder, and inhibiting this pathway has a positive effect on the treatment of related diseases, while ATX, as an important role in the production of LPA, has been shown to be associated with the occurrence and metastasis of tumors, fibrosis and cardiovascular diseases. From mimics of ATX natural lipid substrates to the rational design of small molecule inhibitors, ATX inhibitors have made rapid progress in structural diversity and design over the past 20 years, and three drugs, GLPG1690, BBT-877, and BLD-0409, have entered clinical trials. In this paper, we will review the structure of ATX inhibitors from the perspective of the transformation of design ideas, discuss the advantages and disadvantages of each inhibitor type, and put forward prospects for the development of ATX inhibitors in the future.
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Affiliation(s)
| | | | | | - Yu Tian
- Correspondence: (Y.T.); (H.S.)
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26
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ENPP2 Methylation in Health and Cancer. Int J Mol Sci 2021; 22:ijms222111958. [PMID: 34769391 PMCID: PMC8585013 DOI: 10.3390/ijms222111958] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 10/21/2021] [Accepted: 11/01/2021] [Indexed: 11/16/2022] Open
Abstract
Autotaxin (ATX) encoded by Ectonucleotide Pyrophosphatase/Phosphodiesterase 2 (ENPP2) is a key enzyme in Lysophosphatidic Acid (LPA) synthesis implicated in cancer. Although its aberrant expression has been reported, ENPP2 methylation profiles in health and malignancy are not described. We examined in silico the methylation of ENPP2 analyzing publicly available methylome datasets, to identify Differentially Methylated CpGs (DMCs) which were then correlated with expression at gene and isoform levels. Significance indication was set to be FDR corrected p-value < 0.05. Healthy tissues presented methylation in all gene body CGs and lower levels in Promoter Associated (PA) regions, whereas in the majority of the tumors examined (HCC, melanoma, CRC, LC and PC) the methylation pattern was reversed. DMCs identified in the promoter were located in sites recognized by multiple transcription factors, suggesting involvement in gene expression. Alterations in methylation were correlated to an aggressive phenotype in cancer cell lines. In prostate and lung adenocarcinomas, increased methylation of PA CGs was correlated to decreased ENPP2 mRNA expression and to poor prognosis parameters. Collectively, our results corroborate that methylation is an active level of ATX expression regulation in cancer. Our study provides an extended description of the methylation status of ENPP2 in health and cancer and points out specific DMCs of value as prognostic biomarkers.
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Deng X, Salgado-Polo F, Shao T, Xiao Z, Van R, Chen J, Rong J, Haider A, Shao Y, Josephson L, Perrakis A, Liang SH. Imaging Autotaxin In Vivo with 18F-Labeled Positron Emission Tomography Ligands. J Med Chem 2021; 64:15053-15068. [PMID: 34662125 DOI: 10.1021/acs.jmedchem.1c00913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Autotaxin (ATX) is a secreted phosphodiesterase that has been implicated in a remarkably wide array of pathologies, especially in fibrosis and cancer. While ATX inhibitors have entered the clinical arena, a validated probe for positron emission tomography (PET) is currently lacking. With the aim to develop a suitable ATX-targeted PET radioligand, we have synthesized a focused library of fluorinated imidazo[1,2-a]pyridine derivatives, determined their inhibition constants, and confirmed their binding mode by crystallographic analysis. Based on their promising in vitro properties, compounds 9c, 9f, 9h, and 9j were radiofluorinated. Also, a deuterated analog of [18F]9j, designated as [18F]ATX-1905 ([18F]20), was designed and proved to be highly stable against in vivo radiodefluorination compared with [18F]9c, [18F]9f, [18F]9h, and [18F]9j. These results along with in vitro and in vivo studies toward ATX in a mouse model of LPS-induced liver injury suggest that [18F]ATX-1905 is a suitable PET probe for the non-invasive quantification of ATX.
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Affiliation(s)
- Xiaoyun Deng
- Division of Nuclear Medicine and Molecular Imaging, Massachusetts General Hospital & Department of Radiology, Harvard Medical School, Boston, Massachusetts 02114, United States.,Department of Nuclear Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Fernando Salgado-Polo
- Oncode Institute and Division of Biochemistry, Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX Amsterdam, The Netherlands
| | - Tuo Shao
- Division of Nuclear Medicine and Molecular Imaging, Massachusetts General Hospital & Department of Radiology, Harvard Medical School, Boston, Massachusetts 02114, United States
| | - Zhiwei Xiao
- Division of Nuclear Medicine and Molecular Imaging, Massachusetts General Hospital & Department of Radiology, Harvard Medical School, Boston, Massachusetts 02114, United States
| | - Richard Van
- Department of Chemistry and Biochemistry, University of Oklahoma, Norman, Oklahoma 73019, United States
| | - Jiahui Chen
- Division of Nuclear Medicine and Molecular Imaging, Massachusetts General Hospital & Department of Radiology, Harvard Medical School, Boston, Massachusetts 02114, United States
| | - Jian Rong
- Division of Nuclear Medicine and Molecular Imaging, Massachusetts General Hospital & Department of Radiology, Harvard Medical School, Boston, Massachusetts 02114, United States
| | - Ahmed Haider
- Division of Nuclear Medicine and Molecular Imaging, Massachusetts General Hospital & Department of Radiology, Harvard Medical School, Boston, Massachusetts 02114, United States
| | - Yihan Shao
- Department of Chemistry and Biochemistry, University of Oklahoma, Norman, Oklahoma 73019, United States
| | - Lee Josephson
- Division of Nuclear Medicine and Molecular Imaging, Massachusetts General Hospital & Department of Radiology, Harvard Medical School, Boston, Massachusetts 02114, United States
| | - Anastassis Perrakis
- Oncode Institute and Division of Biochemistry, Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX Amsterdam, The Netherlands
| | - Steven H Liang
- Division of Nuclear Medicine and Molecular Imaging, Massachusetts General Hospital & Department of Radiology, Harvard Medical School, Boston, Massachusetts 02114, United States
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Development of a KRAS-Associated Metabolic Risk Model for Prognostic Prediction in Pancreatic Cancer. BIOMED RESEARCH INTERNATIONAL 2021; 2021:9949272. [PMID: 34660806 PMCID: PMC8516536 DOI: 10.1155/2021/9949272] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 09/01/2021] [Accepted: 09/11/2021] [Indexed: 02/06/2023]
Abstract
Background KRAS was reported to affect some metabolic genes and promote metabolic reprogramming in solid tumors. However, there was no comprehensive analysis to explore KRAS-associated metabolic signature or risk model for pancreatic cancer (PC). Methods In the current study, multiple bioinformatics analyses were used to identify differentially expressed metabolic genes based on KRAS mutation status in PC. Then, we developed and validated a prognostic risk model based on the selected KRAS-associated metabolic genes. Besides, we explored the association between the risk model and the metabolic characteristics as well as gemcitabine-associated chemoresistance in PC. Results 6 KRAS-associated metabolic genes (i.e., CYP2S1, GPX3, FTCD, ENPP2, UGT1A10, and XDH) were selected and enrolled to establish a prognostic risk model. The prognostic model had a high C-index of 0.733 for overall survival (OS) in TCGA pancreatic cancer database. The area under the curve (AUC) values of 1- and 3-year survival were both greater than 0.70. Then, the risk model was validated in two GEO datasets and also presented a satisfactory discrimination and calibration performance. Further, we found that the expression of some KRAS-driven glycolysis-associated genes (PKM, GLUT1, HK2, and LDHA) and gemcitabine-associated chemoresistance genes (i.e., CDA and RMM2) was significantly upregulated in high-risk PC patients evaluated by the risk model. Conclusions We constructed a risk model based on 6 KRAS-associated metabolic genes, which predicted patients' survival with high accuracy and reflected tumor metabolic characteristics and gemcitabine-associated chemoresistance in PC.
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Ntatsoulis K, Karampitsakos T, Tsitoura E, Stylianaki EA, Matralis AN, Tzouvelekis A, Antoniou K, Aidinis V. Commonalities Between ARDS, Pulmonary Fibrosis and COVID-19: The Potential of Autotaxin as a Therapeutic Target. Front Immunol 2021; 12:687397. [PMID: 34671341 PMCID: PMC8522582 DOI: 10.3389/fimmu.2021.687397] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 08/13/2021] [Indexed: 12/15/2022] Open
Abstract
Severe COVID-19 is characterized by acute respiratory distress syndrome (ARDS)-like hyperinflammation and endothelial dysfunction, that can lead to respiratory and multi organ failure and death. Interstitial lung diseases (ILD) and pulmonary fibrosis confer an increased risk for severe disease, while a subset of COVID-19-related ARDS surviving patients will develop a fibroproliferative response that can persist post hospitalization. Autotaxin (ATX) is a secreted lysophospholipase D, largely responsible for the extracellular production of lysophosphatidic acid (LPA), a pleiotropic signaling lysophospholipid with multiple effects in pulmonary and immune cells. In this review, we discuss the similarities of COVID-19, ARDS and ILDs, and suggest ATX as a possible pathologic link and a potential common therapeutic target.
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Affiliation(s)
- Konstantinos Ntatsoulis
- Institute of Bio-Innovation, Biomedical Sciences Research Center Alexander Fleming, Athens, Greece
| | - Theodoros Karampitsakos
- Department of Respiratory Medicine, School of Medicine, University of Patras, Patras, Greece
| | - Eliza Tsitoura
- Laboratory of Molecular & Cellular Pneumonology, Department of Respiratory Medicine, School of Medicine, University of Crete, Heraklion, Greece
| | - Elli-Anna Stylianaki
- Institute of Bio-Innovation, Biomedical Sciences Research Center Alexander Fleming, Athens, Greece
| | - Alexios N. Matralis
- Institute of Bio-Innovation, Biomedical Sciences Research Center Alexander Fleming, Athens, Greece
| | - Argyrios Tzouvelekis
- Department of Respiratory Medicine, School of Medicine, University of Patras, Patras, Greece
| | - Katerina Antoniou
- Laboratory of Molecular & Cellular Pneumonology, Department of Respiratory Medicine, School of Medicine, University of Crete, Heraklion, Greece
| | - Vassilis Aidinis
- Institute of Bio-Innovation, Biomedical Sciences Research Center Alexander Fleming, Athens, Greece
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30
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Jin Y, Kim EN, Lim JH, Kim HD, Ban TH, Yang CW, Park CW, Choi BS. Role of Aberrantly Activated Lysophosphatidic Acid Receptor 1 Signaling Mediated Inflammation in Renal Aging. Cells 2021; 10:cells10102580. [PMID: 34685560 PMCID: PMC8534041 DOI: 10.3390/cells10102580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 09/25/2021] [Accepted: 09/26/2021] [Indexed: 11/16/2022] Open
Abstract
The increasing load of senescent cells is a source of aging, and chronic inflammation plays a pivotal role in cellular senescence. In addition, senescent renal tubular epithelial cells are closely associated with renal aging. Lysophosphatidic acid (LPA) is a bioactive lipid mainly produced by the catalytic action of autotaxin (ATX), and its ligation to LPA receptor-1 (LPAR1) is associated with chronic inflammation and renal fibrosis; however, its role in renal aging is unclear. Male 2-, 12-, and 24-month-old C57BL/6 mice and Human renal proximal tubular epithelial cells (HRPTEpiC) were used in the present study. DNA damage and oxidative stress-induced senescence were simulated using doxorubicin (DOXO) and H2O2, respectively. The aged kidney showed decreased renal function, increased fractional mesangial area, and tubulointerstitial fibrosis. Both aged kidney and senescent cells showed increased levels of LPAR1, Nuclear factor κB (NF-κB), and inflammatory cytokines. In addition, LPAR1-knockdown reduced NF-κB and subsequent inflammatory cytokine induction, and NF-κB-knockdown resulted in decreased LPAR1 expression. Our study revealed a positive feedback loop between LPAR1 and NF-κB, which reinforces the role of inflammatory response, suggesting that blocking of aberrantly activated LPAR1 may reduce excessive inflammation, thereby providing a new possible therapeutic strategy to attenuate renal aging.
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Affiliation(s)
- Yongjie Jin
- College of Medicine, The Catholic University of Korea, Seoul 06591, Korea;
- Transplant Research Center, The Catholic University of Korea, Seoul 06591, Korea; (E.N.K.); (J.H.L.); (H.D.K.); (T.H.B.); (C.W.Y.); (C.W.P.)
| | - Eun Nim Kim
- Transplant Research Center, The Catholic University of Korea, Seoul 06591, Korea; (E.N.K.); (J.H.L.); (H.D.K.); (T.H.B.); (C.W.Y.); (C.W.P.)
- Division of Nephrology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul St. Mary’s Hospital, Seoul 06591, Korea
| | - Ji Hee Lim
- Transplant Research Center, The Catholic University of Korea, Seoul 06591, Korea; (E.N.K.); (J.H.L.); (H.D.K.); (T.H.B.); (C.W.Y.); (C.W.P.)
- Division of Nephrology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul St. Mary’s Hospital, Seoul 06591, Korea
- The Institute for Aging and Metabolic Diseases, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea
| | - Hyung Duk Kim
- Transplant Research Center, The Catholic University of Korea, Seoul 06591, Korea; (E.N.K.); (J.H.L.); (H.D.K.); (T.H.B.); (C.W.Y.); (C.W.P.)
- Division of Nephrology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul St. Mary’s Hospital, Seoul 06591, Korea
| | - Tae Hyun Ban
- Transplant Research Center, The Catholic University of Korea, Seoul 06591, Korea; (E.N.K.); (J.H.L.); (H.D.K.); (T.H.B.); (C.W.Y.); (C.W.P.)
- Division of Nephrology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Eunpyeong, St. Mary’s Hospital, Seoul 03312, Korea
| | - Chul Woo Yang
- Transplant Research Center, The Catholic University of Korea, Seoul 06591, Korea; (E.N.K.); (J.H.L.); (H.D.K.); (T.H.B.); (C.W.Y.); (C.W.P.)
- Division of Nephrology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul St. Mary’s Hospital, Seoul 06591, Korea
| | - Cheol Whee Park
- Transplant Research Center, The Catholic University of Korea, Seoul 06591, Korea; (E.N.K.); (J.H.L.); (H.D.K.); (T.H.B.); (C.W.Y.); (C.W.P.)
- Division of Nephrology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul St. Mary’s Hospital, Seoul 06591, Korea
- The Institute for Aging and Metabolic Diseases, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea
| | - Bum Soon Choi
- Transplant Research Center, The Catholic University of Korea, Seoul 06591, Korea; (E.N.K.); (J.H.L.); (H.D.K.); (T.H.B.); (C.W.Y.); (C.W.P.)
- Division of Nephrology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Eunpyeong, St. Mary’s Hospital, Seoul 03312, Korea
- Correspondence:
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Increased Autotaxin Levels in Severe COVID-19, Correlating with IL-6 Levels, Endothelial Dysfunction Biomarkers, and Impaired Functions of Dendritic Cells. Int J Mol Sci 2021; 22:ijms221810006. [PMID: 34576169 PMCID: PMC8469279 DOI: 10.3390/ijms221810006] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 09/09/2021] [Accepted: 09/11/2021] [Indexed: 12/15/2022] Open
Abstract
Autotaxin (ATX; ENPP2) is a secreted lysophospholipase D catalyzing the extracellular production of lysophosphatidic acid (LPA), a pleiotropic signaling phospholipid. Genetic and pharmacologic studies have previously established a pathologic role for ATX and LPA signaling in pulmonary injury, inflammation, and fibrosis. Here, increased ENPP2 mRNA levels were detected in immune cells from nasopharyngeal swab samples of COVID-19 patients, and increased ATX serum levels were found in severe COVID-19 patients. ATX serum levels correlated with the corresponding increased serum levels of IL-6 and endothelial damage biomarkers, suggesting an interplay of the ATX/LPA axis with hyperinflammation and the associated vascular dysfunction in COVID-19. Accordingly, dexamethasone (Dex) treatment of mechanically ventilated patients reduced ATX levels, as shown in two independent cohorts, indicating that the therapeutic benefits of Dex include the suppression of ATX. Moreover, large scale analysis of multiple single cell RNA sequencing datasets revealed the expression landscape of ENPP2 in COVID-19 and further suggested a role for ATX in the homeostasis of dendritic cells, which exhibit both numerical and functional deficits in COVID-19. Therefore, ATX has likely a multifunctional role in COVID-19 pathogenesis, suggesting that its pharmacological targeting might represent an additional therapeutic option, both during and after hospitalization.
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Trovato FM, Zia R, Napoli S, Wolfer K, Huang X, Morgan PE, Husbyn H, Elgosbi M, Lucangeli M, Miquel R, Wilson I, Heaton ND, Heneghan MA, Auzinger G, Antoniades CG, Wendon JA, Patel VC, Coen M, Triantafyllou E, McPhail MJ. Dysregulation of the Lysophosphatidylcholine/Autotaxin/Lysophosphatidic Acid Axis in Acute-on-Chronic Liver Failure Is Associated With Mortality and Systemic Inflammation by Lysophosphatidic Acid-Dependent Monocyte Activation. Hepatology 2021; 74:907-925. [PMID: 33908067 DOI: 10.1002/hep.31738] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2020] [Revised: 12/31/2020] [Accepted: 01/05/2021] [Indexed: 02/07/2023]
Abstract
BACKGROUND & AIMS Acute-on-chronic liver failure (ACLF) is characterized by systemic inflammation, monocyte dysfunction, and susceptibility to infection. Lysophosphatidylcholines (LPCs) are immune-active lipids whose metabolic regulation and effect on monocyte function in ACLF is open for study. APPROACHES & RESULTS Three hundred forty-two subjects were recruited and characterized for blood lipid, cytokines, phospholipase (PLA), and autotaxin (ATX) concentration. Peripheral blood mononuclear cells and CD14+ monocytes were cultured with LPC, or its autotaxin (ATX)-derived product, lysophosphatidic acid (LPA), with or without lipopolysaccharide stimulation and assessed for surface marker phenotype, cytokines production, ATX and LPA-receptor expression, and phagocytosis. Hepatic ATX expression was determined by immunohistochemistry. Healthy volunteers and patients with sepsis or acute liver failure served as controls. ACLF serum was depleted in LPCs with up-regulated LPA levels. Patients who died had lower LPC levels than survivors (area under the receiver operating characteristic curve, 0.94; P < 0.001). Patients with high-grade ACLF had the lowest LPC concentrations and these rose over the first 3 days of admission. ATX concentrations were higher in patients with AD and ACLF and correlated with Model for End-Stage Liver Disease, Consortium on Chronic Liver Failure-Sequential Organ Failure Assessment, and LPC/LPA concentrations. Reduction in LPC correlated with higher monocyte Mer-tyrosine-kinase (MerTK) and CD163 expression. Plasma ATX concentrations rose dynamically during ACLF evolution, correlating with IL-6 and TNF-α, and were associated with increased hepatocyte ATX expression. ACLF patients had lower human leukocyte antigen-DR isotype and higher CD163/MerTK monocyte expression than controls; both CD163/MerTK expression levels were reduced in ACLF ex vivo following LPA, but not LPC, treatment. LPA induced up-regulation of proinflammatory cytokines by CD14+ cells without increasing phagocytic capacity. CONCLUSIONS ATX up-regulation in ACLF promotes LPA production from LPC. LPA suppresses MerTK/CD163 expression and increases monocyte proinflammatory cytokine production. This metabolic pathway could be investigated to therapeutically reprogram monocytes in ACLF.
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Affiliation(s)
- Francesca M Trovato
- Department of Inflammation BiologySchool of Immunity and Microbial SciencesKings College LondonUK.,Institute of Liver StudiesKings College HospitalLondonUK
| | - Rabiya Zia
- Department of Metabolism, Digestion and ReproductionFaculty of MedicineImperial CollegeLondonUK
| | - Salvatore Napoli
- Department of Inflammation BiologySchool of Immunity and Microbial SciencesKings College LondonUK.,Institute of Liver StudiesKings College HospitalLondonUK
| | - Kate Wolfer
- Department of Metabolism, Digestion and ReproductionFaculty of MedicineImperial CollegeLondonUK
| | - Xiaohong Huang
- Department of Inflammation BiologySchool of Immunity and Microbial SciencesKings College LondonUK.,Institute of Liver StudiesKings College HospitalLondonUK
| | | | - Hannah Husbyn
- Department of Metabolism, Digestion and ReproductionFaculty of MedicineImperial CollegeLondonUK
| | - Marwa Elgosbi
- Department of Inflammation BiologySchool of Immunity and Microbial SciencesKings College LondonUK
| | - Manuele Lucangeli
- Department of Inflammation BiologySchool of Immunity and Microbial SciencesKings College LondonUK
| | - Rosa Miquel
- Institute of Liver StudiesKings College HospitalLondonUK
| | - Ian Wilson
- Department of Metabolism, Digestion and ReproductionFaculty of MedicineImperial CollegeLondonUK
| | | | | | - Georg Auzinger
- Institute of Liver StudiesKings College HospitalLondonUK
| | | | - Julia A Wendon
- Department of Inflammation BiologySchool of Immunity and Microbial SciencesKings College LondonUK.,Institute of Liver StudiesKings College HospitalLondonUK
| | - Vishal C Patel
- Department of Inflammation BiologySchool of Immunity and Microbial SciencesKings College LondonUK.,Institute of Liver StudiesKings College HospitalLondonUK
| | - Muireann Coen
- Department of Metabolism, Digestion and ReproductionFaculty of MedicineImperial CollegeLondonUK.,Oncology SafetyClinical Pharmacology & Safety SciencesR&D, Astra ZenecaCambridgeUK
| | - Evangelos Triantafyllou
- Department of Metabolism, Digestion and ReproductionFaculty of MedicineImperial CollegeLondonUK
| | - Mark J McPhail
- Department of Inflammation BiologySchool of Immunity and Microbial SciencesKings College LondonUK.,Institute of Liver StudiesKings College HospitalLondonUK
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Omori W, Kano K, Hattori K, Kajitani N, Okada-Tsuchioka M, Boku S, Kunugi H, Aoki J, Takebayashi M. Reduced Cerebrospinal Fluid Levels of Lysophosphatidic Acid Docosahexaenoic Acid in Patients With Major Depressive Disorder and Schizophrenia. Int J Neuropsychopharmacol 2021; 24:948-955. [PMID: 34214158 PMCID: PMC8653873 DOI: 10.1093/ijnp/pyab044] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Revised: 05/24/2021] [Accepted: 06/30/2021] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND Lysophosphatidic acid (LPA) is involved in numerous biological processes, including neurodevelopment, chronic inflammation, and immunologic response in the central nervous system. Autotaxin (ATX) is a secreted enzyme that produces LPA from lysophosphatidylcholine (LPC). Previous studies have demonstrated decreased protein levels of ATX in cerebrospinal fluid (CSF) of patients with major depressive disorder (MDD). Based on those studies, the current study investigated the levels of lysophospholipids species including LPA and related metabolic enzymes, in CSF of patients with MDD and schizophrenia (SCZ). METHODS The levels of lysophospholipids species and related metabolic enzymes were measured with either liquid chromatography-tandem mass spectrometry or enzyme-linked immunosorbent assay. Japanese patients were diagnosed with DSM-IV-TR. CSF was obtained from age- and sex-matched healthy controls (n = 27) and patients with MDD (n = 26) and SCZ (n = 27). RESULTS Of all lysophospholipids species, the levels of LPA 22:6 (LPA - docosahexaenoic acid) were significantly lower in patients with MDD and SCZ than in healthy controls. These levels were negatively correlated with several clinical symptomatic scores of MDD, but not those of SCZ. In addition, the levels of LPA 22:6 were significantly correlated with the levels of LPC 22:6 among all 3 groups. On the other hand, the levels of LPA 22:6 were not correlated with ATX activity in patients with MDD and SCZ. CONCLUSION The lower levels of LPA 22:6 in patients with MDD and SCZ suggest an abnormality of LPA 22:6 metabolism. In addition, several depressive symptoms in patients with MDD were significantly associated with the lower levels of LPA 22:6, suggesting an involvement of LPA 22:6 in the pathophysiology of MDD.
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Affiliation(s)
- Wataru Omori
- Division of Psychiatry and Neuroscience, Institute for Clinical Research, National Hospital Organization (NHO) Kure Medical Center and Chugoku Cancer Center, Kure, Hiroshima, Japan,Department of Psychiatry, NHO Kure Medical Center and Chugoku Cancer Center, Kure, Hiroshima, Japan
| | - Kuniyuki Kano
- Department of Health Chemistry, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan,AMED-LEAP, Japan Agency for Medical Research and Development, Tokyo, Japan
| | - Kotaro Hattori
- Department of Mental Disorder Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo, Japan,Medical Genome Center, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Naoto Kajitani
- Division of Psychiatry and Neuroscience, Institute for Clinical Research, National Hospital Organization (NHO) Kure Medical Center and Chugoku Cancer Center, Kure, Hiroshima, Japan,Department of Neuropsychiatry, Faculty of Life Science, Kumamoto University, Kumamoto, Japan
| | - Mami Okada-Tsuchioka
- Division of Psychiatry and Neuroscience, Institute for Clinical Research, National Hospital Organization (NHO) Kure Medical Center and Chugoku Cancer Center, Kure, Hiroshima, Japan
| | - Shuken Boku
- Department of Neuropsychiatry, Faculty of Life Science, Kumamoto University, Kumamoto, Japan
| | - Hiroshi Kunugi
- Department of Mental Disorder Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo, Japan,Department of Psychiatry, Teikyo University School of Medicine, Tokyo, Japan
| | - Junken Aoki
- Department of Health Chemistry, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan,AMED-LEAP, Japan Agency for Medical Research and Development, Tokyo, Japan
| | - Minoru Takebayashi
- Division of Psychiatry and Neuroscience, Institute for Clinical Research, National Hospital Organization (NHO) Kure Medical Center and Chugoku Cancer Center, Kure, Hiroshima, Japan,Department of Neuropsychiatry, Faculty of Life Science, Kumamoto University, Kumamoto, Japan,Correspondence: Minoru Takebayashi, MD, PhD, Department of Neuropsychiatry, Faculty of Life Science, Kumamoto University, 1-1-1, Honjo, Chuo-ku, Kumamoto 860–8556, Japan ()
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Gao L, Li X, Wang H, Liao Y, Zhou Y, Wang K, Hu J, Cheng M, Zeng Z, Wang T, Wen F. Autotaxin levels in serum and bronchoalveolar lavage fluid are associated with inflammatory and fibrotic biomarkers and the clinical outcome in patients with acute respiratory distress syndrome. J Intensive Care 2021; 9:44. [PMID: 34130757 PMCID: PMC8207767 DOI: 10.1186/s40560-021-00559-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Accepted: 06/07/2021] [Indexed: 02/08/2023] Open
Abstract
Background Autotaxin (ATX) is a secreted glycoprotein that is widely present in extracellular biological fluids and has been implicated in many inflammatory and fibrotic diseases. However, the clinical impact of the release of ATX in patients with acute respiratory distress syndrome (ARDS) remains unclear. Methods Serum and bronchoalveolar lavage fluid (BALF) levels of ATX, interleukin (IL)-6, IL-8, tumor necrosis factor (TNF)-α, matrix metalloproteinase (MMP)-7, fibronectin, oncostatin M (OSM), and SPARC (secreted protein acidic and rich in cysteine) were collected from 52 patients with ARDS within 24 h of diagnosis. All cytokines were measured by Magnetic Luminex Assay. BALF albumin (BA) and serum albumin (SA) were measured by enzyme-linked immunosorbent assay. Results Serum ATX, MMP-7, and BALF IL-8 levels were significantly higher in patients who did not survive than in those who survived up to 28 days after diagnosis of ARDS (P < 0.05). BALF and serum ATX levels were correlated with IL-6, IL-8, and MMP-7 levels in BALF and serum, respectively. In addition, BALF ATX was positively correlated with BALF TNF-α, fibronectin, OSM, and SPARC as well as the BA/SA ratio, while serum ATX was correlated with severity of illness based on the SOFA score and PaO2/FIO2 ratio. Furthermore, serum ATX was better able to predict 28-day ARDS-related mortality (area under the curve 0.744, P < 0.01) than the SOFA score, APACHE II score, or PaO2/FIO2 ratio. Serum ATX independently predicted mortality in a univariate Cox regression model (P < 0.0001). Conclusion The serum ATX level is a potential prognostic biomarker in patients with ARDS. BALF ATX is associated with pulmonary biomarkers of inflammation and fibrosis, suggesting a role of ATX in the pathogenesis of ARDS. Supplementary Information The online version contains supplementary material available at 10.1186/s40560-021-00559-3.
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Affiliation(s)
- Lijuan Gao
- Division of Pulmonary Disease, State Key Laboratory of Biotherapy of China, and Department of Respiratory and Critical Care Medicine, West China Hospital of Sichuan University, Guoxuexiang 37, Chengdu, 610041, Sichuan, China
| | - Xiaoou Li
- Division of Pulmonary Disease, State Key Laboratory of Biotherapy of China, and Department of Respiratory and Critical Care Medicine, West China Hospital of Sichuan University, Guoxuexiang 37, Chengdu, 610041, Sichuan, China
| | - Hao Wang
- Division of Pulmonary Disease, State Key Laboratory of Biotherapy of China, and Department of Respiratory and Critical Care Medicine, West China Hospital of Sichuan University, Guoxuexiang 37, Chengdu, 610041, Sichuan, China
| | - Yue Liao
- Division of Pulmonary Disease, State Key Laboratory of Biotherapy of China, and Department of Respiratory and Critical Care Medicine, West China Hospital of Sichuan University, Guoxuexiang 37, Chengdu, 610041, Sichuan, China
| | - Yongfang Zhou
- Department of Critical Care Medicine, West China Hospital of Sichuan University, Guoxuexiang 37, Chengdu, 610041, Sichuan, China
| | - Ke Wang
- Division of Pulmonary Disease, State Key Laboratory of Biotherapy of China, and Department of Respiratory and Critical Care Medicine, West China Hospital of Sichuan University, Guoxuexiang 37, Chengdu, 610041, Sichuan, China
| | - Jun Hu
- Division of Pulmonary Disease, State Key Laboratory of Biotherapy of China, and Department of Respiratory and Critical Care Medicine, West China Hospital of Sichuan University, Guoxuexiang 37, Chengdu, 610041, Sichuan, China
| | - Mengxin Cheng
- Division of Pulmonary Disease, State Key Laboratory of Biotherapy of China, and Department of Respiratory and Critical Care Medicine, West China Hospital of Sichuan University, Guoxuexiang 37, Chengdu, 610041, Sichuan, China
| | - Zijian Zeng
- Division of Pulmonary Disease, State Key Laboratory of Biotherapy of China, and Department of Respiratory and Critical Care Medicine, West China Hospital of Sichuan University, Guoxuexiang 37, Chengdu, 610041, Sichuan, China
| | - Tao Wang
- Division of Pulmonary Disease, State Key Laboratory of Biotherapy of China, and Department of Respiratory and Critical Care Medicine, West China Hospital of Sichuan University, Guoxuexiang 37, Chengdu, 610041, Sichuan, China.
| | - Fuqiang Wen
- Division of Pulmonary Disease, State Key Laboratory of Biotherapy of China, and Department of Respiratory and Critical Care Medicine, West China Hospital of Sichuan University, Guoxuexiang 37, Chengdu, 610041, Sichuan, China.
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Nikitopoulou I, Ninou I, Manitsopoulos N, Dimopoulou I, Orfanos SE, Aidinis V, Kotanidou A. A role for bronchial epithelial autotaxin in ventilator-induced lung injury. Intensive Care Med Exp 2021; 9:12. [PMID: 33778909 PMCID: PMC8005331 DOI: 10.1186/s40635-021-00379-7] [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: 10/14/2020] [Accepted: 02/22/2021] [Indexed: 01/13/2023] Open
Abstract
Background The pathophysiology of acute respiratory distress syndrome (ARDS) may eventually result in heterogeneous lung collapse and edema-flooded airways, predisposing the lung to progressive tissue damage known as ventilator-induced lung injury (VILI). Autotaxin (ATX; ENPP2), the enzyme largely responsible for extracellular lysophosphatidic acid (LPA) production, has been suggested to play a pathogenic role in, among others, pulmonary inflammation and fibrosis. Methods C57BL/6 mice were subjected to low and high tidal volume mechanical ventilation using a small animal ventilator: respiratory mechanics were evaluated, and plasma and bronchoalveolar lavage fluid (BALF) samples were obtained. Total protein concentration was determined, and lung histopathology was further performed Results Injurious ventilation resulted in increased BALF levels of ATX. Genetic deletion of ATX from bronchial epithelial cells attenuated VILI-induced pulmonary edema. Conclusion ATX participates in VILI pathogenesis.
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Affiliation(s)
- Ioanna Nikitopoulou
- 1st Department of Critical Care Medicine & Pulmonary Services, GP Livanos and M Simou Laboratories, National and Kapodistrian University of Athens Medical School, Evangelismos Hospital, 45, Ipsilantou Street, Athens, Greece
| | - Ioanna Ninou
- Institute of Immunology, Biomedical Sciences Research Center Alexander Fleming, Athens, Greece
| | - Nikolaos Manitsopoulos
- 1st Department of Critical Care Medicine & Pulmonary Services, GP Livanos and M Simou Laboratories, National and Kapodistrian University of Athens Medical School, Evangelismos Hospital, 45, Ipsilantou Street, Athens, Greece
| | - Ioanna Dimopoulou
- 1st Department of Critical Care Medicine & Pulmonary Services, National and Kapodistrian University of Athens Medical School, Evangelismos Hospital, 45, Ipsilantou Street, Athens, Greece
| | - Stylianos E Orfanos
- 1st Department of Critical Care Medicine & Pulmonary Services, GP Livanos and M Simou Laboratories, National and Kapodistrian University of Athens Medical School, Evangelismos Hospital, 45, Ipsilantou Street, Athens, Greece.,2nd Department of Critical Care, National and Kapodistrian University of Athens Medical School, Attikon" Hospital, Athens, Greece
| | - Vassilis Aidinis
- Institute of Immunology, Biomedical Sciences Research Center Alexander Fleming, Athens, Greece
| | - Anastasia Kotanidou
- 1st Department of Critical Care Medicine & Pulmonary Services, GP Livanos and M Simou Laboratories, National and Kapodistrian University of Athens Medical School, Evangelismos Hospital, 45, Ipsilantou Street, Athens, Greece. .,1st Department of Critical Care Medicine & Pulmonary Services, National and Kapodistrian University of Athens Medical School, Evangelismos Hospital, 45, Ipsilantou Street, Athens, Greece.
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Geraldo LHM, Spohr TCLDS, Amaral RFD, Fonseca ACCD, Garcia C, Mendes FDA, Freitas C, dosSantos MF, Lima FRS. Role of lysophosphatidic acid and its receptors in health and disease: novel therapeutic strategies. Signal Transduct Target Ther 2021; 6:45. [PMID: 33526777 PMCID: PMC7851145 DOI: 10.1038/s41392-020-00367-5] [Citation(s) in RCA: 124] [Impact Index Per Article: 41.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 09/28/2020] [Accepted: 09/30/2020] [Indexed: 12/12/2022] Open
Abstract
Lysophosphatidic acid (LPA) is an abundant bioactive phospholipid, with multiple functions both in development and in pathological conditions. Here, we review the literature about the differential signaling of LPA through its specific receptors, which makes this lipid a versatile signaling molecule. This differential signaling is important for understanding how this molecule can have such diverse effects during central nervous system development and angiogenesis; and also, how it can act as a powerful mediator of pathological conditions, such as neuropathic pain, neurodegenerative diseases, and cancer progression. Ultimately, we review the preclinical and clinical uses of Autotaxin, LPA, and its receptors as therapeutic targets, approaching the most recent data of promising molecules modulating both LPA production and signaling. This review aims to summarize the most update knowledge about the mechanisms of LPA production and signaling in order to understand its biological functions in the central nervous system both in health and disease.
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Affiliation(s)
- Luiz Henrique Medeiros Geraldo
- Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil.,Université de Paris, PARCC, INSERM, F-75015, Paris, France
| | | | | | | | - Celina Garcia
- Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Fabio de Almeida Mendes
- Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Catarina Freitas
- Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Marcos Fabio dosSantos
- Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Flavia Regina Souza Lima
- Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil.
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Mieczkowski A, Frączyk T, Psurski M, Wińska P, Siedlecki P, Dziełak M, Trzybiński D, Wilczek M, Bagiński M, Bieszczad B, Woźniak K. Design and in Vitro Characterization of Tricyclic Benzodiazepine Derivatives as Potent and Selective Antileukemic Agents. Chem Biodivers 2020; 18:e2000733. [PMID: 33236468 DOI: 10.1002/cbdv.202000733] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2020] [Accepted: 11/24/2020] [Indexed: 12/22/2022]
Abstract
Currently available chemotherapeutic treatments for blood cancers (leukemia) usually have strong side effects. More selective, efficient, and less toxic anticancer agents are needed. We synthesized seven, new, optically pure (12aS)-1,3,4,12a-tetrahydropyrazino[2,1-c][1,4],12(2H,11H)-dione derivatives and examined their cytotoxicity towards eight cancer cell lines, including urinary bladder (TCC-SUP, UM-UC-3, KU-19-9), colon (LoVo), and breast (MCF-7, MDA-MB-231) cancer representatives, as well as two leukemic cell lines (MV-4-11, CCRF-CEM) and normal murine fibroblasts (Balb/3T3) as reference cell line. Three of the seven newly-obtained compounds ((12aS)-8-bromo-2-(3-phenylbenzoyl)-1,3,4,12a-tetrahydropyrazino[2,1-c][1,4],12(2H,11H)-dione, (12aS)-8,9-dimethoxy-2-(4-phenylbenzoyl)-1,3,4,12a-tetrahydropyrazino[2,1-c][1,4],12(2H,11H)-dione and (12aS)-8-nitro-2-(4-phenylbenzoyl)-1,3,4,12a-tetrahydropyrazino[2,1-c][1,4],12(2H,11H)-dione, showed enhanced activity and selectivity toward the leukemic MV-4-11 cell lines when compared to our previously reported compounds, with IC50 values in the range of 2.9-5.6 μM. Additionally, (12aS)-9-nitro-2-(4-phenylbenzoyl)-1,3,4,12a-tetrahydropyrazino[2,1-c][1,4],12(2H,11H)-dione exhibited a strong cytotoxic effect against the leukemic CCRF-CEM (IC50 =6.1 μM) and MV-4-11 (IC50 =11.0 μM) cell lines, a moderate cytotoxic effect toward other tumor lines (IC50 =31.8-55.0 μM) and very weak cytotoxic effect toward the Balb/3T3 reference cell lines. Selected compounds were further evaluated for their potential to induce apoptotic cell death in MV-4-11 cells by measuring caspase-3 activity. We also established the crystal structure of three products and investigated the effect of 22 derivatives of 1,3,4,12a-tetrahydropyrazino[2,1-c][1,4],12(2H,11H)-dione on the activity of the cancer-associated enzyme autotaxin. All compounds proved to be weak inhibitors of autotaxin, although some (R) and (S) enantiomers had Ki values of 10-19 μM. The obtained results showed that the tested compounds exhibited a selective antileukemic effect, which appeared not to be related directly to autotaxin. Molecular targets responsible for this effect remain to be identified. The newly obtained compounds can be used in the search for new, selective anticancer therapies.
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Affiliation(s)
- Adam Mieczkowski
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Pawinskiego 5a, 02-106, Warsaw, Poland
| | - Tomasz Frączyk
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Pawinskiego 5a, 02-106, Warsaw, Poland.,Medical University of Warsaw, Nowogrodzka 59, 02-006, Warsaw, Poland
| | - Mateusz Psurski
- Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, R., Weigla 12, 53-114, Wroclaw, Poland
| | - Patrycja Wińska
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664, Warsaw, Poland
| | - Paweł Siedlecki
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Pawinskiego 5a, 02-106, Warsaw, Poland
| | - Monika Dziełak
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Pawinskiego 5a, 02-106, Warsaw, Poland
| | - Damian Trzybiński
- Biological and Chemical Research Centre, University of Warsaw, Żwirki i Wigury 101, 02-089, Warsaw, Poland
| | - Marcin Wilczek
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093, Warsaw, Poland
| | - Maciej Bagiński
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Pawinskiego 5a, 02-106, Warsaw, Poland.,Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093, Warsaw, Poland
| | - Bartosz Bieszczad
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Pawinskiego 5a, 02-106, Warsaw, Poland
| | - Krzysztof Woźniak
- Biological and Chemical Research Centre, University of Warsaw, Żwirki i Wigury 101, 02-089, Warsaw, Poland
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Fang Y, Tian J, Fan Y, Cao P. Latest progress on the molecular mechanisms of idiopathic pulmonary fibrosis. Mol Biol Rep 2020; 47:9811-9820. [PMID: 33230784 DOI: 10.1007/s11033-020-06000-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Accepted: 11/11/2020] [Indexed: 01/11/2023]
Abstract
Idiopathic pulmonary fibrosis (IPF) is a serious life-threatening lung disease, and the median survival period of PF patients after diagnosis is only 2.5-3.5 years. At present, there are no effective drugs or therapeutics to reverse or even inhibit IPF. The main pathological characteristics of pulmonary fibrosis (PF) include damage to alveolar epithelial cells, fibroblast activation and extracellular matrix accumulation, which gradually lead to damage to the lung structure and decreased lung function. It is important to understand the cellular and molecular mechanisms of PF comprehensively and clearly. In this paper, critical signaling pathways related to PF were reviewed to present updates on the molecular mechanisms of PF.
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Affiliation(s)
- Yue Fang
- Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology of Hebei Province, College of Life Sciences, Hebei Normal University, 20 East Road of 2nd South Ring, Yuhua District, Shijiazhuang, 050024, China.,Key Laboratory of Brain Functional Genomics of Ministry of Education, School of Life Sciences, East China Normal University, Shanghai, 200062, China
| | - Jingya Tian
- Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology of Hebei Province, College of Life Sciences, Hebei Normal University, 20 East Road of 2nd South Ring, Yuhua District, Shijiazhuang, 050024, China.,College of Chemistry and Environmental Sciences, Hebei University, Baoding, China
| | - Yumei Fan
- Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology of Hebei Province, College of Life Sciences, Hebei Normal University, 20 East Road of 2nd South Ring, Yuhua District, Shijiazhuang, 050024, China.
| | - Pengxiu Cao
- Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology of Hebei Province, College of Life Sciences, Hebei Normal University, 20 East Road of 2nd South Ring, Yuhua District, Shijiazhuang, 050024, China.
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Wang Z, Shi W, Tian D, Qin H, Vallance BA, Yang H, Yu HB, Yu Q. Autotaxin stimulates LPA2 receptor in macrophages and exacerbates dextran sulfate sodium-induced acute colitis. J Mol Med (Berl) 2020; 98:1781-1794. [PMID: 33128578 DOI: 10.1007/s00109-020-01997-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 10/02/2020] [Accepted: 10/20/2020] [Indexed: 01/12/2023]
Abstract
Autotaxin (ATX) is a secreted enzyme that hydrolyzes lysophosphatidylcholine (LPC) to lysophosphatidic acid (LPA) and choline. ATX has been implicated in multiple chronic inflammatory diseases, but little is known about its role in the development of inflammatory bowel disease (IBD). Here, we investigated how ATX contributed to intestinal inflammation during colitis. We found that ATX expression levels were upregulated in the intestines of ulcerative colitis (UC) patients in acute state as well as in the intestines of dextran sulfate sodium (DSS)-induced colitis mice, which is likely due to increased infiltration of inflammatory cells including macrophages. Intriguingly, the inhibition of ATX activity led to reduced production of inflammatory cytokines, as well as attenuated colitis. These findings suggest that ATX may display strong pro-inflammatory properties. Supporting this, treatment with recombinant mouse ATX (rmATX) increased the production of inflammatory cytokines and enzymes in mouse macrophage cell line RAW264.7 and bone marrow-derived macrophages (BMDM), whereas silencing ATX by siRNA reduced LPS-stimulated production of pro-inflammatory factors. Notably, we found that the levels of LPA2 (an LPA receptor) were dramatically upregulated in rmATX-treated RAW264.7 cells and DSS-treated mice. Gene silencing of lpa2 in RAW264.7 cells by siRNA led to reduced production of inflammatory cytokines. Moreover, adenovirus-mediated delivery of lpa2 short hairpin RNA into DSS-treated mice ameliorated colitis. Collectively, our research suggests that ATX may exacerbate DSS-induced colitis by activating LPA2 receptor in macrophages and represent a promising target for the treatment of IBD. KEY MESSAGES: Increased ATX expression and secretion in colitic colons are likely due to increased infiltration of inflammatory cells including macrophages. Recombinant ATX promotes, but ATX silencing inhibits, the production of inflammatory cytokines in LPS-stimulated RAW264.7 cells and BMDM. •LPA2 mediates the pro-inflammatory effects of ATX on macrophages. Inhibition of ATX and downregulation of LPA2 ameliorate DSS-induced colitis.
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Affiliation(s)
- Zi Wang
- Department of Gastroenterology, Tongji Hospital, Huazhong University of Science and Technology, Jiefang Avenue, 1095, 430030, Wuhan, People's Republic of China
| | - Wenjie Shi
- Department of Gastroenterology, Tongji Hospital, Huazhong University of Science and Technology, Jiefang Avenue, 1095, 430030, Wuhan, People's Republic of China
| | - Dean Tian
- Department of Gastroenterology, Tongji Hospital, Huazhong University of Science and Technology, Jiefang Avenue, 1095, 430030, Wuhan, People's Republic of China
| | - Hua Qin
- Department of Gastroenterology, Tongji Hospital, Huazhong University of Science and Technology, Jiefang Avenue, 1095, 430030, Wuhan, People's Republic of China
| | - Bruce A Vallance
- Division of Gastroenterology, Department of Pediatrics, BC Children's Hospital, University of British Columbia, Vancouver, BC, Canada
| | - Hyungjun Yang
- Division of Gastroenterology, Department of Pediatrics, BC Children's Hospital, University of British Columbia, Vancouver, BC, Canada
| | - Hong B Yu
- Division of Gastroenterology, Department of Pediatrics, BC Children's Hospital, University of British Columbia, Vancouver, BC, Canada.
| | - Qin Yu
- Department of Gastroenterology, Tongji Hospital, Huazhong University of Science and Technology, Jiefang Avenue, 1095, 430030, Wuhan, People's Republic of China.
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Banerjee S, Norman DD, Deng S, Fakayode SO, Lee SC, Parrill AL, Li W, Miller DD, Tigyi GJ. Molecular modelling guided design, synthesis and QSAR analysis of new small molecule non-lipid autotaxin inhibitors. Bioorg Chem 2020; 103:104188. [PMID: 32890995 PMCID: PMC8163515 DOI: 10.1016/j.bioorg.2020.104188] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 07/18/2020] [Accepted: 08/04/2020] [Indexed: 02/06/2023]
Abstract
The lysophospholipase D autotaxin (ATX) generates lysophosphatidic acid (LPA) that activates six cognate G-protein coupled receptors (GPCR) in cancerous cells, promoting their motility and invasion. Four novel compounds were generated aided by molecular docking guided design and synthesis techniques to obtain new dual inhibitors of ATX and the lysophosphatidic acid receptor subtype 1 (LPAR1). Biological evaluation of these compounds revealed two compounds, 10 and 11, as new ATX enzyme inhibitors with potencies in the range of 218-220 nM and water solubility (>100 µg/mL), but with no LPAR1 inhibitory activity. A QSAR model was generated that included four newly designed compounds and twenty-one additional compounds that we have reported previously. The QSAR model provided excellent predictability of the pharmacological activity and potency among structurally related drug candidates. This model will be highly useful in guiding the synthesis of new ATX inhibitors in the future.
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Affiliation(s)
- Souvik Banerjee
- Department of Physical Sciences, University of Arkansas Fort Smith, Fort Smith, AR 72913, USA; Department of Physiology, College of Medicine, University of Tennessee Health Science Center, Memphis, TN 38163, USA; Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, Memphis, TN 38163, USA.
| | - Derek D Norman
- Department of Physiology, College of Medicine, University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Shanshan Deng
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Sayo O Fakayode
- Department of Physical Sciences, University of Arkansas Fort Smith, Fort Smith, AR 72913, USA
| | - Sue Chin Lee
- Department of Physiology, College of Medicine, University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Abby L Parrill
- Department of Chemistry, Computational Research on Material Institute, The University of Memphis, Memphis, TN 38152, USA
| | - Wei Li
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Duane D Miller
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, Memphis, TN 38163, USA.
| | - Gabor J Tigyi
- Department of Physiology, College of Medicine, University of Tennessee Health Science Center, Memphis, TN 38163, USA.
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Structure-Based Discovery of Novel Chemical Classes of Autotaxin Inhibitors. Int J Mol Sci 2020; 21:ijms21197002. [PMID: 32977539 PMCID: PMC7582705 DOI: 10.3390/ijms21197002] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 09/18/2020] [Accepted: 09/19/2020] [Indexed: 02/06/2023] Open
Abstract
Autotaxin (ATX) is a secreted glycoprotein, widely present in biological fluids, largely responsible for extracellular lysophosphatidic acid (LPA) production. LPA is a bioactive growth-factor-like lysophospholipid that exerts pleiotropic effects in almost all cell types, exerted through at least six G-protein-coupled receptors (LPAR1-6). Increased ATX expression has been detected in different chronic inflammatory diseases, while genetic or pharmacological studies have established ATX as a promising therapeutic target, exemplified by the ongoing phase III clinical trial for idiopathic pulmonary fibrosis. In this report, we employed an in silico drug discovery workflow, aiming at the identification of structurally novel series of ATX inhibitors that would be amenable to further optimization. Towards this end, a virtual screening protocol was applied involving the search into molecular databases for new small molecules potentially binding to ATX. The crystal structure of ATX in complex with a known inhibitor (HA-155) was used as a molecular model docking reference, yielding a priority list of 30 small molecule ATX inhibitors, validated by a well-established enzymatic assay of ATX activity. The two most potent, novel and structurally different compounds were further structurally optimized by deploying further in silico tools, resulting to the overall identification of six new ATX inhibitors that belong to distinct chemical classes than existing inhibitors, expanding the arsenal of chemical scaffolds and allowing further rational design.
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Structure guided design of potent indole-based ATX inhibitors bearing hydrazone moiety with tumor suppression effects. Eur J Med Chem 2020; 201:112456. [DOI: 10.1016/j.ejmech.2020.112456] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 04/29/2020] [Accepted: 05/10/2020] [Indexed: 12/11/2022]
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Zulfikar S, Mulholland S, Adamali H, Barratt SL. Inhibitors of the Autotaxin-Lysophosphatidic Acid Axis and Their Potential in the Treatment of Interstitial Lung Disease: Current Perspectives. Clin Pharmacol 2020; 12:97-108. [PMID: 32765123 PMCID: PMC7367740 DOI: 10.2147/cpaa.s228362] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Accepted: 06/17/2020] [Indexed: 12/18/2022] Open
Abstract
Idiopathic pulmonary fibrosis is a progressive fibrosing interstitial lung disease for which there is no known cure. Currently available therapeutic options have been shown at best to slow the progression of the disease and thus there remains an urgent unmet need to identify new therapies. In this article, we will discuss the mechanisms of action, pre-clinical and clinical trial data surrounding inhibitors of the autotaxin-lysophosphatidic acid axis, which show promise as emerging novel therapies for fibrotic lung disease.
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Affiliation(s)
- Sabrina Zulfikar
- Bristol Interstitial Lung Disease Service, North Bristol NHS Trust, Bristol, UK
| | - Sarah Mulholland
- Bristol Interstitial Lung Disease Service, North Bristol NHS Trust, Bristol, UK
| | - Huzaifa Adamali
- Bristol Interstitial Lung Disease Service, North Bristol NHS Trust, Bristol, UK
| | - Shaney L Barratt
- Bristol Interstitial Lung Disease Service, North Bristol NHS Trust, Bristol, UK
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Conversion of extracellular ATP into adenosine: a master switch in renal health and disease. Nat Rev Nephrol 2020; 16:509-524. [PMID: 32641760 DOI: 10.1038/s41581-020-0304-7] [Citation(s) in RCA: 65] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/01/2020] [Indexed: 12/22/2022]
Abstract
ATP and its ultimate degradation product adenosine are potent extracellular signalling molecules that elicit a variety of pathophysiological functions in the kidney through the activation of P2 and P1 purinergic receptors, respectively. Extracellular purines can modulate immune responses, balancing inflammatory processes and immunosuppression; indeed, alterations in extracellular nucleotide and adenosine signalling determine outcomes of inflammation and healing processes. The functional activities of ectonucleotidases such as CD39 and CD73, which hydrolyse pro-inflammatory ATP to generate immunosuppressive adenosine, are therefore pivotal in acute inflammation. Protracted inflammation may result in aberrant adenosinergic signalling, which serves to sustain inflammasome activation and worsen fibrotic reactions. Alterations in the expression of ectonucleotidases on various immune cells, such as regulatory T cells and macrophages, as well as components of the renal vasculature, control purinergic receptor-mediated effects on target tissues within the kidney. The role of CD39 as a rheostat that can have an impact on purinergic signalling in both acute and chronic inflammation is increasingly supported by the literature, as detailed in this Review. Better understanding of these purinergic processes and development of novel drugs targeting these pathways could lead to effective therapies for the management of acute and chronic kidney disease.
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Amaral RF, Geraldo LHM, Einicker-Lamas M, E Spohr TCLDS, Mendes F, Lima FRS. Microglial lysophosphatidic acid promotes glioblastoma proliferation and migration via LPA 1 receptor. J Neurochem 2020; 156:499-512. [PMID: 32438456 DOI: 10.1111/jnc.15097] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 04/27/2020] [Accepted: 05/08/2020] [Indexed: 12/12/2022]
Abstract
Glioblastomas (GBMs) are highly aggressive primary brain tumors characterized by cellular heterogeneity, insensitivity to chemotherapy and poor patient survival. Lysophosphatidic acid (LPA) is a lysophospholipid that acts as a bioactive signaling molecule and plays important roles in diverse biological events during development and disease, including several cancer types. Microglial cells, the resident macrophages of the central nervous system, express high levels of Autotaxin (ATX,Enpp2), an enzyme that synthetizes LPA. Our study aimed to investigate the role of LPA on tumor growth and invasion in the context of microglia-GBM interaction. First, through bioinformatics studies, patient data analysis demonstrated that more aggressive GBM expressed higher levels of ENPP2, which was also associated with worse patient prognosis with proneural GBM. Using GBM-microglia co-culture system we then demonstrated that GBM secreted factors were able to increase LPA1 and ATX in microglia, which could be further enhanced by hypoxia. On the other hand, interaction with microglial cells also increased ATX expression in GBM. Furthermore, microglial-induced GBM proliferation and migration could be inhibited by pharmacological inhibition of LPA1 , suggesting that microglial-derived LPA could support tumor growth and invasion. Finally, increased LPA1 expression was observed in GBM comparing with other gliomas and could be also associated with worse patient survival. These results show for the first time a microglia-GBM interaction through the LPA pathway with relevant implications for tumor progression. A better understanding of this interaction can lead to the development of new therapeutic strategies setting LPA as a potential target for GBM treatment.
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Affiliation(s)
- Rackele F Amaral
- Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Luiz H M Geraldo
- Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Marcelo Einicker-Lamas
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Tania C L de S E Spohr
- Instituto Estadual do Cérebro Paulo Niemeyer - Secretaria de Estado de Saúde, Rio de Janeiro, Brazil
| | - Fabio Mendes
- Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Flavia R S Lima
- Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
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Lei H, Guo M, Li X, Jia F, Li C, Yang Y, Cao M, Jiang N, Ma E, Zhai X. Discovery of Novel Indole-Based Allosteric Highly Potent ATX Inhibitors with Great In Vivo Efficacy in a Mouse Lung Fibrosis Model. J Med Chem 2020; 63:7326-7346. [DOI: 10.1021/acs.jmedchem.0c00506] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Hongrui Lei
- Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Ming Guo
- Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Xiaopeng Li
- Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Fang Jia
- Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Changtao Li
- Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Yu Yang
- Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Meng Cao
- Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Nan Jiang
- Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Enlong Ma
- Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Xin Zhai
- Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
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47
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Feng Y, Mischler WJ, Gurung AC, Kavanagh TR, Androsov G, Sadow PM, Herbert ZT, Priolo C. Therapeutic Targeting of the Secreted Lysophospholipase D Autotaxin Suppresses Tuberous Sclerosis Complex-Associated Tumorigenesis. Cancer Res 2020; 80:2751-2763. [PMID: 32393662 DOI: 10.1158/0008-5472.can-19-2884] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Revised: 03/25/2020] [Accepted: 05/05/2020] [Indexed: 12/14/2022]
Abstract
Tuberous sclerosis complex (TSC) is an autosomal dominant disease characterized by multiorgan hamartomas, including renal angiomyolipomas and pulmonary lymphangioleiomyomatosis (LAM). TSC2 deficiency leads to hyperactivation of mTOR Complex 1 (mTORC1), a master regulator of cell growth and metabolism. Phospholipid metabolism is dysregulated upon TSC2 loss, causing enhanced production of lysophosphatidylcholine (LPC) species by TSC2-deficient tumor cells. LPC is the major substrate of the secreted lysophospholipase D autotaxin (ATX), which generates two bioactive lipids, lysophosphatidic acid (LPA) and sphingosine-1-phosphate (S1P). We report here that ATX expression is upregulated in human renal angiomyolipoma-derived TSC2-deficient cells compared with TSC2 add-back cells. Inhibition of ATX via the clinically developed compound GLPG1690 suppressed TSC2-loss associated oncogenicity in vitro and in vivo and induced apoptosis in TSC2-deficient cells. GLPG1690 suppressed AKT and ERK1/2 signaling and profoundly impacted the transcriptome of these cells while inducing minor gene expression changes in TSC2 add-back cells. RNA-sequencing studies revealed transcriptomic signatures of LPA and S1P, suggesting an LPA/S1P-mediated reprogramming of the TSC lipidome. In addition, supplementation of LPA or S1P rescued proliferation and viability, neutral lipid content, and AKT or ERK1/2 signaling in human TSC2-deficient cells treated with GLPG1690. Importantly, TSC-associated renal angiomyolipomas have higher expression of LPA receptor 1 and S1P receptor 3 compared with normal kidney. These studies increase our understanding of TSC2-deficient cell metabolism, leading to novel potential therapeutic opportunities for TSC and LAM. SIGNIFICANCE: This study identifies activation of the ATX-LPA/S1P pathway as a novel mode of metabolic dysregulation upon TSC2 loss, highlighting critical roles for ATX in TSC2-deficient cell fitness and in TSC tumorigenesis.
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Affiliation(s)
- You Feng
- Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts
- Harvard Medical School, Boston, Massachusetts
| | - William J Mischler
- Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts
- Harvard Medical School, Boston, Massachusetts
| | - Ashish C Gurung
- Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts
- Harvard Medical School, Boston, Massachusetts
| | - Taylor R Kavanagh
- Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts
- Harvard Medical School, Boston, Massachusetts
| | - Grigoriy Androsov
- Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts
- Harvard Medical School, Boston, Massachusetts
| | - Peter M Sadow
- Harvard Medical School, Boston, Massachusetts
- Department of Pathology, Massachusetts General Hospital, Boston, Massachusetts
| | - Zachary T Herbert
- Harvard Medical School, Boston, Massachusetts
- Molecular Biology Core Facilities, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Carmen Priolo
- Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts.
- Harvard Medical School, Boston, Massachusetts
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Plastira I, Bernhart E, Joshi L, Koyani CN, Strohmaier H, Reicher H, Malle E, Sattler W. MAPK signaling determines lysophosphatidic acid (LPA)-induced inflammation in microglia. J Neuroinflammation 2020; 17:127. [PMID: 32326963 PMCID: PMC7178949 DOI: 10.1186/s12974-020-01809-1] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Accepted: 04/08/2020] [Indexed: 12/12/2022] Open
Abstract
Background In the extracellular environment, lysophosphatidic acid (LPA) species are generated via autotaxin (ATX)-mediated hydrolysis of lysophospholipid precursors. Members of the LPA family are potent lipid mediators transmitting signals via six different G protein-coupled LPA receptors (LPAR1-6). The LPA signaling axis is indispensable for brain development and function of the nervous system; however, during damage of the central nervous system, LPA levels can increase and aberrant signaling events counteract brain function. Here, we investigated regulation of the ATX/LPA/LPAR axis in response to lipopolysaccharide-induced systemic inflammation in mice and potential neurotoxic polarization programs in LPA-activated primary murine microglia. Methods In vivo, LPAR1-6 expression was established by qPCR in whole murine brain homogenates and in FACS-sorted microglia. ELISAs were used to quantitate LPA concentrations in the brain and cyto-/chemokine secretion from primary microglia in vitro. Transcription factor phosphorylation was analyzed by immunoblotting, and plasma membrane markers were analyzed by flow cytometry. We used MAPK inhibitors to study signal integration by the JNK, p38, and ERK1/2 branches in response to LPA-mediated activation of primary microglia. Results Under acute and chronic inflammatory conditions, we observed a significant increase in LPA concentrations and differential regulation of LPAR, ATX (encoded by ENPP2), and cytosolic phospholipase A2 (encoded by PLA2G4A) gene expression in the brain and FACS-sorted microglia. During pathway analyses in vitro, the use of specific MAPK antagonists (SP600125, SB203580, and PD98059) revealed that JNK and p38 inhibition most efficiently attenuated LPA-induced phosphorylation of proinflammatory transcription factors (STAT1 and -3, p65, and c-Jun) and secretion of IL-6 and TNFα. All three inhibitors decreased LPA-mediated secretion of IL-1β, CXCL10, CXCL2, and CCL5. The plasma membrane marker CD40 was solely inhibited by SP600125 while all three inhibitors affected expression of CD86 and CD206. All MAPK antagonists reduced intracellular COX-2 and Arg1 as well as ROS and NO formation, and neurotoxicity of microglia-conditioned media. Conclusion In the present study, we show that systemic inflammation induces aberrant ATX/LPA/LPAR homeostasis in the murine brain. LPA-mediated polarization of primary microglia via MAPK-dependent pathways induces features reminiscent of a neurotoxic phenotype.
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Affiliation(s)
- Ioanna Plastira
- Division of Molecular Biology and Biochemistry, Gottfried Schatz Research Center, Medical University of Graz, Neue Stiftingtalstrasse 6/6, 8010, Graz, Austria
| | - Eva Bernhart
- Division of Molecular Biology and Biochemistry, Gottfried Schatz Research Center, Medical University of Graz, Neue Stiftingtalstrasse 6/6, 8010, Graz, Austria
| | - Lisha Joshi
- Division of Molecular Biology and Biochemistry, Gottfried Schatz Research Center, Medical University of Graz, Neue Stiftingtalstrasse 6/6, 8010, Graz, Austria
| | - Chintan N Koyani
- Division of Molecular Biology and Biochemistry, Gottfried Schatz Research Center, Medical University of Graz, Neue Stiftingtalstrasse 6/6, 8010, Graz, Austria.,Division of Cardiology, Department of Internal Medicine, Medical University of Graz, Graz, Austria
| | - Heimo Strohmaier
- Center for Medical Research, Medical University of Graz, Graz, Austria
| | - Helga Reicher
- Division of Molecular Biology and Biochemistry, Gottfried Schatz Research Center, Medical University of Graz, Neue Stiftingtalstrasse 6/6, 8010, Graz, Austria
| | - Ernst Malle
- Division of Molecular Biology and Biochemistry, Gottfried Schatz Research Center, Medical University of Graz, Neue Stiftingtalstrasse 6/6, 8010, Graz, Austria
| | - Wolfgang Sattler
- Division of Molecular Biology and Biochemistry, Gottfried Schatz Research Center, Medical University of Graz, Neue Stiftingtalstrasse 6/6, 8010, Graz, Austria. .,Center for Explorative Lipidomics, BioTechMed, Graz, Austria.
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Genetic deletion of Autotaxin from CD11b+ cells decreases the severity of experimental autoimmune encephalomyelitis. PLoS One 2020; 15:e0226050. [PMID: 32240164 PMCID: PMC7117669 DOI: 10.1371/journal.pone.0226050] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Accepted: 03/17/2020] [Indexed: 02/08/2023] Open
Abstract
Autotaxin (ATX) is a secreted lysophospholipase D catalyzing the extracellular production of lysophosphatidic acid (LPA), a growth factor-like signaling lysophospholipid. ATX and LPA signaling have been incriminated in the pathogenesis of different chronic inflammatory diseases and various types of cancer. In this report, deregulated ATX and LPA levels were detected in the spinal cord and plasma of mice during the development of experimental autoimmune encephalomyelitis (EAE). Among the different sources of ATX expression in the inflamed spinal cord, F4/80+ CD11b+ cells, mostly activated macrophages and microglia, were found to express ATX, further suggesting an autocrine role for ATX/LPA in their activation, an EAE hallmark. Accordingly, ATX genetic deletion from CD11b+ cells attenuated the severity of EAE, thus proposing a pathogenic role for the ATX/LPA axis in neuroinflammatory disorders.
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50
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Identifying Novel ATX Inhibitors via Combinatory Virtual Screening Using Crystallography-Derived Pharmacophore Modelling, Docking Study, and QSAR Analysis. Molecules 2020; 25:molecules25051107. [PMID: 32131468 PMCID: PMC7179221 DOI: 10.3390/molecules25051107] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 02/25/2020] [Accepted: 02/26/2020] [Indexed: 01/01/2023] Open
Abstract
Autotaxin (ATX) is considered as an interesting drug target for the therapy of several diseases. The goal of the research was to detect new ATX inhibitors which have novel scaffolds by using virtual screening. First, based on two diverse receptor-ligand complexes, 14 pharmacophore models were developed, and the 14 models were verified through a big test database. Those pharmacophore models were utilized to accomplish virtual screening. Next, for the purpose of predicting the probable binding poses of compounds and then carrying out further virtual screening, docking-based virtual screening was performed. Moreover, an excellent 3D QSAR model was established, and 3D QSAR-based virtual screening was applied for predicting the activity values of compounds which got through the above two-round screenings. A correlation coefficient r2, which equals 0.988, was supplied by the 3D QSAR model for the training set, and the correlation coefficient r2 equaling 0.808 for the test set means that the developed 3D QSAR model is an excellent model. After the filtering was done by the combinatory virtual screening, which is based on the pharmacophore modelling, docking study, and 3D QSAR modelling, we chose nine potent inhibitors with novel scaffolds finally. Furthermore, two potent compounds have been particularly discussed.
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