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Yamamoto M, Takai M, Yashiro N, Hayasaka H, Tsujiuchi T. Lysophosphatidic acid (LPA) receptor-mediated signaling regulates hypoxia-induced biological functions of lymphatic endothelial cells. Biochem Biophys Res Commun 2024; 715:149982. [PMID: 38676998 DOI: 10.1016/j.bbrc.2024.149982] [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: 04/18/2024] [Revised: 04/18/2024] [Accepted: 04/22/2024] [Indexed: 04/29/2024]
Abstract
The tumor microenvironment is an extremely complex composed of cancer cells and various non-cancer cells, including lymphatic endothelial cells. Lysophosphatidic acid (LPA) receptors (LPA1 to LPA6) activate a variety of malignant properties in human malignancies. In the present study, we examined the roles of LPA receptor-mediated signaling in biological responses of lymphatic endothelial SVEC4-10 cells induced by hypoxia. Lpar1, Lpar2 and Lpar3 expressions were decreased in SVEC4-10 cells cultured at hypoxic conditions (1 % O2). LPA had no impact on the cell growth activity of SVEC4-10 cells in 21 % O2 culture conditions. Conversely, the cell growth activity of SVEC4-10 cells in 1 % O2 culture conditions was reduced by LPA. The cell motile activity of SVEC4-10 cells was elevated by 1 % O2 culture conditions. GRI-977143 (LPA2 agonist) and (2S)-OMPT (LPA3 agonist) stimulated SVEC4-10 cell motility as well as AM966 (LPA1 antagonist). In tube formation assay, the tube formation of SVEC4-10 cells in 1 % O2 culture conditions was markedly increased, in comparison with 21 % O2. GRI-977143 and (2S)-OMPT elevated the tube formation of SVEC4-10 cells. Furthermore, the tube formation of SVEC4-10 cells was increased by AM966. These results suggest that LPA receptor-mediated signaling contributes to the modulation of hypoxic-induced biological functions of lymphatic endothelial cells.
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Affiliation(s)
- Mao Yamamoto
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka, 577-8502, Japan
| | - Miwa Takai
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka, 577-8502, Japan
| | - Narumi Yashiro
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka, 577-8502, Japan
| | - Haruko Hayasaka
- Laboratory of Immune Molecular Function, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka, 577-8502, Japan
| | - Toshifumi Tsujiuchi
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka, 577-8502, Japan.
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Dietze R, Szymanski W, Ojasalu K, Finkernagel F, Nist A, Stiewe T, Graumann J, Müller R. Phosphoproteomics Reveals Selective Regulation of Signaling Pathways by Lysophosphatidic Acid Species in Macrophages. Cells 2024; 13:810. [PMID: 38786034 PMCID: PMC11119170 DOI: 10.3390/cells13100810] [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: 04/10/2024] [Revised: 05/06/2024] [Accepted: 05/08/2024] [Indexed: 05/25/2024] Open
Abstract
Lysophosphatidic acid (LPA) species, prevalent in the tumor microenvironment (TME), adversely impact various cancers. In ovarian cancer, the 18:0 and 20:4 LPA species are selectively associated with shorter relapse-free survival, indicating distinct effects on cellular signaling networks. Macrophages represent a cell type of high relevance in the TME, but the impact of LPA on these cells remains obscure. Here, we uncovered distinct LPA-species-specific responses in human monocyte-derived macrophages through unbiased phosphoproteomics, with 87 and 161 phosphosites upregulated by 20:4 and 18:0 LPA, respectively, and only 24 shared sites. Specificity was even more pronounced for downregulated phosphosites (163 versus 5 sites). Considering the high levels 20:4 LPA in the TME and its selective association with poor survival, this finding may hold significant implications. Pathway analysis pinpointed RHO/RAC1 GTPase signaling as the predominantly impacted target, including AHRGEF and DOCK guanine exchange factors, ARHGAP GTPase activating proteins, and regulatory protein kinases. Consistent with these findings, exposure to 20:4 resulted in strong alterations to the actin filament network and a consequent enhancement of macrophage migration. Moreover, 20:4 LPA induced p38 phosphorylation, a response not mirrored by 18:0 LPA, whereas the pattern for AKT was reversed. Furthermore, RNA profiling identified genes involved in cholesterol/lipid metabolism as selective targets of 20:4 LPA. These findings imply that the two LPA species cooperatively regulate different pathways to support functions essential for pro-tumorigenic macrophages within the TME. These include cellular survival via AKT activation and migration through RHO/RAC1 and p38 signaling.
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Affiliation(s)
- Raimund Dietze
- Department of Translational Oncology, Center for Tumor Biology and Immunology, Philipps University, 35043 Marburg, Germany; (R.D.); (K.O.); (F.F.)
| | - Witold Szymanski
- Institute of Translational Proteomics, Biochemical Pharmacological Centre, Philipps University, 35043 Marburg, Germany
- Core Facility Translational Proteomics, Philipps University, 35043 Marburg, Germany
| | - Kaire Ojasalu
- Department of Translational Oncology, Center for Tumor Biology and Immunology, Philipps University, 35043 Marburg, Germany; (R.D.); (K.O.); (F.F.)
| | - Florian Finkernagel
- Department of Translational Oncology, Center for Tumor Biology and Immunology, Philipps University, 35043 Marburg, Germany; (R.D.); (K.O.); (F.F.)
- Bioinformatics Core Facility, Philipps University, 35043 Marburg, Germany
| | - Andrea Nist
- Genomics Core Facility, Philipps University, 35043 Marburg, Germany; (A.N.); (T.S.)
| | - Thorsten Stiewe
- Genomics Core Facility, Philipps University, 35043 Marburg, Germany; (A.N.); (T.S.)
| | - Johannes Graumann
- Institute of Translational Proteomics, Biochemical Pharmacological Centre, Philipps University, 35043 Marburg, Germany
- Core Facility Translational Proteomics, Philipps University, 35043 Marburg, Germany
| | - Rolf Müller
- Department of Translational Oncology, Center for Tumor Biology and Immunology, Philipps University, 35043 Marburg, Germany; (R.D.); (K.O.); (F.F.)
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Ikeda H, Takai M, Tsujiuchi T. Lysophosphatidic acid (LPA) receptor-mediated signaling and cellular responses to anticancer drugs and radiation of cancer cells. Adv Biol Regul 2024; 92:101029. [PMID: 38377635 DOI: 10.1016/j.jbior.2024.101029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Revised: 01/30/2024] [Accepted: 02/08/2024] [Indexed: 02/22/2024]
Abstract
Lysophosphatidic acid (LPA) is a simple physiological lipid and structurally consists of a fatty, a phosphate and a glycerol. LPA binds to G protein-coupled LPA receptors (LPA1 to LPA6). LPA receptor-mediated signaling mediates a variety of biological responses, such as cell growth, migration, morphogenesis, differentiation and protection from apoptosis. It is considered that LPA receptor-mediated signaling plays an important role in the pathogenesis of human malignancies. So far, genetic and epigenetic alterations of LPA receptors have been found in several cancer cells as well as abnormal LPA production. In addition, LPA receptor-mediated signaling regulates the promotion of malignant behaviors, including chemo- and/or radiation-resistance. Chemotherapy and radiotherapy are the common approaches to the treatments of cancers. However, resistance to anticancer drugs and irradiation is the most critical limitation for chemotherapy and radiotherapy. In this review, we provide the roles of LPA receptor-mediated signaling in the regulation of cellular responses induced by chemotherapeutic agents and irradiation and its biological utility as a possible molecular target for improving cancer cell responses to chemotherapy and radiotherapy.
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Affiliation(s)
- Hiroko Ikeda
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Miwa Takai
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Toshifumi Tsujiuchi
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan.
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Takemura K, Nakamae M, Okamura H, Sakatoku K, Ido K, Makuuchi Y, Kuno M, Takakuwa T, Hirose A, Nishimoto M, Nakashima Y, Koh H, Igarashi K, Kubota H, Hino M, Nakamae H. Autotaxin is a potential predictive marker for the development of veno-occlusive disease/sinusoidal obstruction syndrome after allogeneic hematopoietic cell transplantation. Ann Hematol 2024; 103:1705-1715. [PMID: 38494552 DOI: 10.1007/s00277-024-05685-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Accepted: 02/25/2024] [Indexed: 03/19/2024]
Abstract
Veno-occlusive disease/sinusoidal obstruction syndrome (VOD/SOS) is a life-threatening complication after allogeneic hematopoietic cell transplantation (allo-HCT), and stratification of the high-risk group before transplantation is significant. Serum autotaxin (ATX) levels have been reported to increase in patients with liver fibrosis caused by metabolic inhibition from liver sinusoidal endothelial cells. Considering that the pathophysiology of VOD/SOS begins with liver sinusoidal endothelial cell injury, an increase in serum ATX levels may precede the onset of VOD/SOS. A retrospective study with 252 patients, including 12 patients with VOD/SOS, who had received allo-HCT was performed. The cumulative incidence of VOD/SOS was higher in the group with serum ATX levels before conditioning (baseline ATX) above the upper reference limit (high ATX group, p < 0.001), and 1-year cumulative incidences were 22.7% (95% confidence interval [95%CI], 3.1-42.4%) and 3.5% (95%CI, 1.1-5.8%), respectively. In the multivariate analysis, elevated baseline ATX was identified as an independent risk factor for VOD/SOS development and showed an additive effect on the predictive ability of known risk factors. Furthermore, the incidence of VOD/SOS-related mortality was greater in the high ATX group (16.7% vs. 1.3%; p = 0.005). Serum ATX is a potential predictive marker for the development of VOD/SOS.
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Affiliation(s)
- Kazuya Takemura
- Department of Central Clinical Laboratory, Osaka Metropolitan University Hospital, Osaka, Japan
| | - Mika Nakamae
- Department of Central Clinical Laboratory, Osaka Metropolitan University Hospital, Osaka, Japan.
- Department of Hematology, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan.
- Department of Laboratory Medicine and Medical Informatics, Osaka Metropolitan University Graduate School of Medicine, 1-4-3, Asahi-machi, Abeno-ku, Osaka-shi, Osaka, 545-8585, Japan.
| | - Hiroshi Okamura
- Department of Hematology, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
- Department of Laboratory Medicine and Medical Informatics, Osaka Metropolitan University Graduate School of Medicine, 1-4-3, Asahi-machi, Abeno-ku, Osaka-shi, Osaka, 545-8585, Japan
| | - Kazuki Sakatoku
- Department of Hematology, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
| | - Kentaro Ido
- Department of Central Clinical Laboratory, Osaka Metropolitan University Hospital, Osaka, Japan
- Department of Hematology, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
- Department of Laboratory Medicine and Medical Informatics, Osaka Metropolitan University Graduate School of Medicine, 1-4-3, Asahi-machi, Abeno-ku, Osaka-shi, Osaka, 545-8585, Japan
| | - Yosuke Makuuchi
- Department of Hematology, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
| | - Masatomo Kuno
- Department of Hematology, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
| | - Teruhito Takakuwa
- Department of Hematology, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
| | - Asao Hirose
- Department of Hematology, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
| | - Mitsutaka Nishimoto
- Department of Hematology, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
| | - Yasuhiro Nakashima
- Department of Hematology, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
| | - Hideo Koh
- Department of Hematology, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
- Department of Preventive Medicine and Environmental Health, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
| | - Koji Igarashi
- Bioscience Division, Tosoh Corporation, Kanagawa, Japan
| | - Hiroshi Kubota
- Department of Central Clinical Laboratory, Osaka Metropolitan University Hospital, Osaka, Japan
| | - Masayuki Hino
- Department of Central Clinical Laboratory, Osaka Metropolitan University Hospital, Osaka, Japan
- Department of Hematology, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
- Department of Laboratory Medicine and Medical Informatics, Osaka Metropolitan University Graduate School of Medicine, 1-4-3, Asahi-machi, Abeno-ku, Osaka-shi, Osaka, 545-8585, Japan
| | - Hirohisa Nakamae
- Department of Central Clinical Laboratory, Osaka Metropolitan University Hospital, Osaka, Japan
- Department of Hematology, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
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Ikeda H, Takai M, Yashiro N, Amano Y, Hara K, Yamamoto M, Tsujiuchi T. Regulation of cellular responses to X-ray irradiation through the activation of lysophosphatidic acid (LPA) receptor-3 (LPA 3) and LPA 2 in osteosarcoma cells. Pathol Res Pract 2024; 257:155293. [PMID: 38615508 DOI: 10.1016/j.prp.2024.155293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Accepted: 04/04/2024] [Indexed: 04/16/2024]
Abstract
Lysophosphatidic acid (LPA) binds to its specific G protein-coupled LPA receptors (LPA1 to LPA6), resulting in the activation of various cellular functions. LPA receptor-mediated signaling facilitates tumor progression in human malignancies. In the present study, we investigated whether LPA receptor-mediated signaling contributes to cellular responses to X-ray irradiation in osteosarcoma MG-63 cells. After X-ray irradiation (2, 4 and 8 Gy), LPAR2 and LPAR3 expression levels in MG-63 cells were significantly elevated in a dose-dependent manner, but no change of LPAR1 expression level was observed. The cell growth activities of MG-63 cells irradiated with X-rays (2, 4 and 8 Gy) were reduced by LPA. Conversely, LPA3 agonist (2 S)-OMPT enhanced the cell growth activities of X-ray irradiated MG-63 cells. The cell movement of MG-63 cells exposed to X-ray irradiation (8 Gy) was inhibited by (2 S)OMPT. In cell survival assay, (2 S)-OMPT suppressed the cell survival to cisplatin (CDDP) of MG-63 cells irradiated with X-rays (8 Gy). The cell survival to CDDP of X-ray irradiated cells was elevated by LPA3 knockdown. Moreover, we evaluated the effects of LPA2 on the cell survival to CDDP of MG-63 cells exposed to X-ray irradiation (8 Gy). The cell survival to CDDP of X-ray irradiated cells was increased by LPA2 agonist GRI-977143 and reduced by LPA2 knockdown. These results suggest that LPA receptor-signaling participates in the modulation of cellular functions induced by X-ray irradiation in osteosarcoma cells.
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Affiliation(s)
- Hiroko Ikeda
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Miwa Takai
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Narumi Yashiro
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Yuka Amano
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Koki Hara
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Mao Yamamoto
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Toshifumi Tsujiuchi
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan.
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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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Zhang Y, Tang L, Liu H, Cheng Y. The Multiple Functions of HB-EGF in Female Reproduction and Related Cancer: Molecular Mechanisms and Targeting Strategies. Reprod Sci 2024:10.1007/s43032-024-01454-6. [PMID: 38424408 DOI: 10.1007/s43032-024-01454-6] [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: 08/16/2023] [Accepted: 01/03/2024] [Indexed: 03/02/2024]
Abstract
Heparin-binding growth factor (HB-EGF) is a member of the epidermal growth factor (EGF) ligand family which has a crucial role in women's health. However, there is a lack of comprehensive review to summarize the significance of HB-EGF. Therefore, this work first described the expression patterns of HB-EGF in the endometrium and ovary of different species and gestational time. Then, the focus was on exploring how it promotes the successful implantation and regulates the process of decidualization and the function of ovarian granulosa cells as an intermediate molecule. Otherwise, we also focused on the clinical and prognostic significance of HB-EGF in female-related cancers (including ovarian cancer, cervical cancer, and endometrial cancer) and breast cancer. Lastly, the article also summarizes the current drugs targeting HB-EGF in the treatment of ovarian cancer and breast cancer. Overall, these studies found that the expression of HB-EGF in the endometrium is spatiotemporal and species-specific. And it mediates the dialogue between the blastocyst and endometrium, promoting synchronous development of the blastocyst and endometrium as an intermediate molecule. HB-EGF may serve as a potentially valuable prognostic clinical indicator in tumors. And the specific inhibitor of HB-EGF (CRM197) has a certain anti-tumor ability, which can exert synergistic anti-tumor effects with conventional chemotherapy drugs. However, it also suggests that more research is needed in the future to elucidate its specific mechanisms and to accommodate clinical studies with a larger sample size to clarify its clinical value.
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Affiliation(s)
- Yuwei Zhang
- Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, 99 Zhang Zhidong Road, Wuhan, Hubei, 430060, People's Republic of China
| | - Lujia Tang
- Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, 99 Zhang Zhidong Road, Wuhan, Hubei, 430060, People's Republic of China
| | - Hua Liu
- Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, 99 Zhang Zhidong Road, Wuhan, Hubei, 430060, People's Republic of China.
| | - Yanxiang Cheng
- Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, 99 Zhang Zhidong Road, Wuhan, Hubei, 430060, People's Republic of China.
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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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9
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Benesch MG, Tang X, Brindley DN, Takabe K. Autotaxin and Lysophosphatidate Signaling: Prime Targets for Mitigating Therapy Resistance in Breast Cancer. World J Oncol 2024; 15:1-13. [PMID: 38274724 PMCID: PMC10807915 DOI: 10.14740/wjon1762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Accepted: 12/29/2023] [Indexed: 01/27/2024] Open
Abstract
Overcoming and preventing cancer therapy resistance is the most pressing challenge in modern breast cancer management. Consequently, most modern breast cancer research is aimed at understanding and blocking these therapy resistance mechanisms. One increasingly promising therapeutic target is the autotaxin (ATX)-lysophosphatidate (LPA)-lipid phosphate phosphatase (LPP) axis. Extracellular LPA, produced from albumin-bound lysophosphatidylcholine by ATX and degraded by the ecto-activity of the LPPs, is a potent cell-signaling mediator of tumor growth, invasion, angiogenesis, immune evasion, and resistance to cancer treatment modalities. LPA signaling in the post-natal organism has central roles in physiological wound healing, but these mechanisms are subverted to fuel pathogenesis in diseases that arise from chronic inflammatory processes, including cancer. Over the last 10 years, our understanding of the role of LPA signaling in the breast tumor microenvironment has begun to mature. Tumor-promoting inflammation in breast cancer leads to increased ATX production within the tumor microenvironment. This results in increased local concentrations of LPA that are maintained in part by decreased overall cancer cell LPP expression that would otherwise more rapidly break it down. LPA signaling through six G-protein-coupled LPA receptors expressed by cancer cells can then activate virtually every known tumorigenic pathway. Consequently, to target therapy resistance and tumor growth mediated by LPA signaling, multiple inhibitors against the LPA signaling axis are entering clinical trials. In this review, we summarize recent developments in LPA breast cancer biology, and illustrate how these novel therapeutics against the LPA signaling pathway may be excellent adjuncts to extend the efficacy of evolving breast cancer treatments.
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Affiliation(s)
- Matthew G.K. Benesch
- Department of Surgical Oncology, Roswell Park Comprehensive Cancer Center, Buffalo, NY 14263, USA
| | - Xiaoyun Tang
- Cancer Research Institute of Northern Alberta, Department of Biochemistry, University of Alberta, Edmonton, AB T6G 2H7, Canada
| | - David N. Brindley
- Cancer Research Institute of Northern Alberta, Department of Biochemistry, University of Alberta, Edmonton, AB T6G 2H7, Canada
| | - Kazuaki Takabe
- Department of Surgical Oncology, Roswell Park Comprehensive Cancer Center, Buffalo, NY 14263, USA
- Department of Breast Surgery and Oncology, Tokyo Medical University, Tokyo 160-8402, Japan
- Department of Gastroenterological Surgery, Yokohama City University Graduate School of Medicine, Yokohama 236-0004, Japan
- Division of Digestive and General Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8520, Japan
- Department of Breast Surgery, Fukushima Medical University School of Medicine, Fukushima 960-1295, Japan
- Department of Surgery, University at Buffalo Jacobs School of Medicine and Biomedical Sciences, State University of New York, Buffalo, NY 14263, USA
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10
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Abdelwahid MS, Ohsawa K, Uwamizu A, Kano K, Aoki J, Doi T. Synthesis and Biological Evaluation of Lysophosphatidic Acid Analogues Using Conformational Restriction and Bioisosteric Replacement Strategies. ACS OMEGA 2023; 8:49278-49288. [PMID: 38162765 PMCID: PMC10753746 DOI: 10.1021/acsomega.3c07668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 11/08/2023] [Accepted: 11/13/2023] [Indexed: 01/03/2024]
Abstract
Lysophosphatidic acid (LPA) is a key player in many physiological and pathophysiological processes. The biological activities of LPA are mediated through interactions with-at least-six subtypes of G-protein-coupled receptors (GPCRs) named LPA1-6. Developing a pharmacological tool molecule that activates LPA subtype receptors selectively will allow a better understanding of their specific physiological roles. Here, we designed and synthesized conformationally restricted 25 1-oleoyl LPA analogues MZN-001 to MZN-025 by incorporating its glycerol linker into dihydropyran, tetrahydropyran, and pyrrolidine rings and variating the lipophilic chain. The agonistic activities of these compounds were evaluated using the TGFα shedding assay. Overall, the synthesized analogues exhibited significantly reduced agonistic activities toward LPA1, LPA2, and LPA6, while demonstrating potent activities toward LPA3, LPA4, and LPA5 compared to the parent LPA. Specifically, MZN-010 showed more than 10 times greater potency (EC50 = 4.9 nM) than the standard 1-oleoyl LPA (EC50 = 78 nM) toward LPA5 while exhibiting significantly lower activity on LPA1, LPA2, and LPA6 and comparable potency toward LPA3 and LPA4. Based on the MZN-010 scaffold, we synthesized additional analogues with improved selectivity and potency toward LPA5. Compound MZN-021, which contains a saturated lipophilic chain, exhibited 50 times more potent activity (EC50 = 1.2 nM) than the natural LPA against LPA5 with over a 45-fold higher selectivity when compared to those of other LPA receptors. Thus, MZN-021 was found to be a potent and selective LPA5 agonist. The findings of this study could contribute to broadening the current knowledge about the stereochemical and three-dimensional arrangement of LPA pharmacophore components inside LPA receptors and paving the way toward synthesizing other subtype-selective pharmacological probes.
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Affiliation(s)
- Mazin
A. S. Abdelwahid
- Graduate
School of Pharmaceutical Sciences, Tohoku
University, 6-3 Aza-aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
| | - Kosuke Ohsawa
- Graduate
School of Pharmaceutical Sciences, Tohoku
University, 6-3 Aza-aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
| | - Akiharu Uwamizu
- Graduate
School of Pharmaceutical Sciences, The University
of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Kuniyuki Kano
- Graduate
School of Pharmaceutical Sciences, The University
of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Junken Aoki
- Graduate
School of Pharmaceutical Sciences, The University
of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Takayuki Doi
- Graduate
School of Pharmaceutical Sciences, Tohoku
University, 6-3 Aza-aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
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11
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An X, Zhong C, Han B, Chen E, Zhu Q, Yang Y, Li R, Yang R, Zha D, Han Y. Lysophosphatidic acid exerts protective effects on HEI-OC1 cells against cytotoxicity of cisplatin by decreasing apoptosis, excessive autophagy, and accumulation of ROS. Cell Death Discov 2023; 9:415. [PMID: 37968255 PMCID: PMC10651903 DOI: 10.1038/s41420-023-01706-5] [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: 05/27/2023] [Revised: 10/22/2023] [Accepted: 11/01/2023] [Indexed: 11/17/2023] Open
Abstract
Lysophosphatidic acid (LPA) is an active phospholipid signaling molecule that binds to six specific G protein-coupled receptors (LPA1-6) on the cell surface and exerts a variety of biological functions, including cell migration and proliferation, morphological changes, and anti-apoptosis. The earliest study from our group demonstrated that LPA treatment could restore cochlear F-actin depolymerization induced by noise exposure, reduce hair cell death, and thus protect hearing. However, whether LPA could protect against cisplatin-induced ototoxicity and which receptors play the major role remain unclear. To this end, we integrated the HEI-OC1 mouse cochlear hair cell line and zebrafish model, and found that cisplatin exposure induced a large amount of reactive oxygen species accumulation in HEI-OC1 cells, accompanied by mitochondrial damage, leading to apoptosis and autophagy. LPA treatment significantly attenuated autophagy and apoptosis in HEI-OC1 cells after cisplatin exposure. Further investigation revealed that all LPA receptors except LPA3 were expressed in HEI-OC1 cells, and the mRNA expression level of LPA1 receptor was significantly higher than that of other receptors. When LPA1 receptor was silenced, the protective effect of LPA was reduced and the proportion of apoptosis cells was increased, indicating that LPA-LPA1 plays an important role in protecting HEI-OC1 cells from cisplatin-induced apoptosis. In addition, the behavioral trajectory and in vivo fluorescence imaging results showed that cisplatin exposure caused zebrafish to move more actively, and the movement speed and distance were higher than those of the control and LPA groups, while LPA treatment reduced the movement behavior. Cisplatin caused hair cell death and loss in zebrafish lateral line, and LPA treatment significantly protected against hair cell death and loss. LPA has a protective effect on hair cells in vitro and in vivo against the cytotoxicity of cisplatin, and its mechanism may be related to reducing apoptosis, excessive autophagy and ROS accumulation.
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Affiliation(s)
- Xiaogang An
- Department of Otolaryngology, Xijing Hospital, Air Force Medical University, Xi'an, 710032, Shaanxi Province, China
- National Clinical Research Center for Otolaryngologic Diseases of Shaanxi sub center, Xi'an, 710032, Shaanxi Province, China
| | - Cuiping Zhong
- The 940th Hospital of Joint Logistics Support Force of People's Liberation Army, Lanzhou, 730050, Gansu Province, China
| | - Bang Han
- Department of Otolaryngology, Xijing Hospital, Air Force Medical University, Xi'an, 710032, Shaanxi Province, China
- National Clinical Research Center for Otolaryngologic Diseases of Shaanxi sub center, Xi'an, 710032, Shaanxi Province, China
| | - Erfang Chen
- Department of Otolaryngology, Xijing Hospital, Air Force Medical University, Xi'an, 710032, Shaanxi Province, China
- National Clinical Research Center for Otolaryngologic Diseases of Shaanxi sub center, Xi'an, 710032, Shaanxi Province, China
| | - Qingwen Zhu
- Department of Otolaryngology, Xijing Hospital, Air Force Medical University, Xi'an, 710032, Shaanxi Province, China
- National Clinical Research Center for Otolaryngologic Diseases of Shaanxi sub center, Xi'an, 710032, Shaanxi Province, China
| | - Yang Yang
- Department of Otolaryngology, Xijing Hospital, Air Force Medical University, Xi'an, 710032, Shaanxi Province, China
- National Clinical Research Center for Otolaryngologic Diseases of Shaanxi sub center, Xi'an, 710032, Shaanxi Province, China
| | - Rui Li
- Department of Otolaryngology, Xijing Hospital, Air Force Medical University, Xi'an, 710032, Shaanxi Province, China
- National Clinical Research Center for Otolaryngologic Diseases of Shaanxi sub center, Xi'an, 710032, Shaanxi Province, China
| | - Runqin Yang
- Department of Otolaryngology, Xijing Hospital, Air Force Medical University, Xi'an, 710032, Shaanxi Province, China
- National Clinical Research Center for Otolaryngologic Diseases of Shaanxi sub center, Xi'an, 710032, Shaanxi Province, China
| | - Dingjun Zha
- Department of Otolaryngology, Xijing Hospital, Air Force Medical University, Xi'an, 710032, Shaanxi Province, China.
- National Clinical Research Center for Otolaryngologic Diseases of Shaanxi sub center, Xi'an, 710032, Shaanxi Province, China.
| | - Yu Han
- Department of Otolaryngology, Xijing Hospital, Air Force Medical University, Xi'an, 710032, Shaanxi Province, China.
- National Clinical Research Center for Otolaryngologic Diseases of Shaanxi sub center, Xi'an, 710032, Shaanxi Province, China.
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12
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Takai M, Takamoto M, Amano Y, Yamamoto M, Hara K, Yashiro N, Tsujiuchi T. Induction of lysophosphatidic acid (LPA) receptor-mediated signaling regulates cell motility and survival to anticancer drugs in cancer cells treated with hydrogen peroxide. Adv Biol Regul 2023; 89:100978. [PMID: 37603941 DOI: 10.1016/j.jbior.2023.100978] [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: 06/08/2023] [Revised: 08/06/2023] [Accepted: 08/16/2023] [Indexed: 08/23/2023]
Abstract
Hydrogen peroxide (H2O2) is one of reactive oxygen species (ROS) and promotes malignant properties of cancer cells. Lysophosphatidic acid (LPA) signaling via LPA receptor (LPA1 to LPA6) regulates a variety of cellular functions, such as cell growth, migration and differentiation. This study aimed to evaluate the effects of LPA receptors on the cell motility and survival to anticancer drugs by H2O2 in colon cancer DLD-1 cells. To obtain H2O2 treated (DLD- H2O2) cells, cells were maintained in culture medium containing H2O2 (60 μM) for 2 months. LPAR2 and LPAR4 gene expressions were markedly elevated in DLD-H2O2 cells. The cell motility of DLD-H2O2 cells was significantly lower than that of DLD-1 cells. DLD-H2O2 cell motility was suppressed by LPA2 knockdown and stimulated by LPA4 knockdown. The cell survival rates to fluorouracil (5-FU), irinotecan (CPT-11) and oxaliplatin (L-OHP) of DLD-H2O2 cells were significantly higher than those of DLD-1 cells. The cell survival rate to 5-FU of DLD-H2O2 cells was decreased by LPA2 knockdown. Conversely, LPA4 knockdown enhanced the cell survival rate to 5-FU of DLD-H2O2 cells. In the tumor microenvironment, high levels of H2O2 production are observed under hypoxic conditions. The cell survival rate to 5-FU of DLD-H2O2 cells cultured at 1% O2 was significantly higher than that of DLD-1 cells cultured at 1% O2, correlating with LPAR2 gene expression. The present results suggest that the induction of LPA receptor-mediated signaling plays an important role in regulating cellular functions of DLD-1 cells treated with H2O2.
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Affiliation(s)
- Miwa Takai
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka, 577-8502, Japan
| | - Miyu Takamoto
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka, 577-8502, Japan
| | - Yuka Amano
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka, 577-8502, Japan
| | - Mao Yamamoto
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka, 577-8502, Japan
| | - Koki Hara
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka, 577-8502, Japan
| | - Narumi Yashiro
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka, 577-8502, Japan
| | - Toshifumi Tsujiuchi
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka, 577-8502, Japan.
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13
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Beukes D, van Reenen M, Loots DT, du Preez I. Tuberculosis is associated with sputum metabolome variations, irrespective of patient sex or HIV status: an untargeted GCxGC-TOFMS study. Metabolomics 2023; 19:55. [PMID: 37284915 DOI: 10.1007/s11306-023-02017-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Accepted: 05/10/2023] [Indexed: 06/08/2023]
Abstract
INTRODUCTION Various studies have identified TB-induced metabolome variations. However, in most of these studies, a large degree of variation exists between individual patients. OBJECTIVES To identify differential metabolites for TB, independent of patients' sex or HIV status. METHODS Untargeted GCxGC/TOF-MS analyses were applied to the sputum of 31 TB + and 197 TB- individuals. Univariate statistics were used to identify metabolites which are significantly different between TB + and TB- individuals (a) irrespective of HIV status, and (b) with a HIV + status. Comparisons a and b were repeated for (i) all participants, (ii) males only and (iii) females only. RESULTS Twenty-one compounds were significantly different between the TB + and TB- individuals within the female subgroup (11% lipids; 10% carbohydrates; 1% amino acids, 5% other and 73% unannotated), and 6 within the male subgroup (20% lipids; 40% carbohydrates; 6% amino acids, 7% other and 27% unannotated). For the HIV + patients (TB + vs. TB-), a total of 125 compounds were significant within the female subgroup (16% lipids; 8% carbohydrates; 12% amino acids, 6% organic acids, 8% other and 50% unannotated), and 44 within the male subgroup (17% lipids; 2% carbohydrates; 14% amino acids related, 8% organic acids, 9% other and 50% unannotated). Only one annotated compound, 1-oleoyl lysophosphaditic acid, was consistently identified as a differential metabolite for TB, irrespective of sex or HIV status. The potential clinical application of this compound should be evaluated further. CONCLUSIONS Our findings highlight the importance of considering confounders in metabolomics studies in order to identify unambiguous disease biomarkers.
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Affiliation(s)
- Derylize Beukes
- Human Metabolomics, North-West University, Potchefstroom, South Africa
| | - Mari van Reenen
- Human Metabolomics, North-West University, Potchefstroom, South Africa
| | - Du Toit Loots
- Human Metabolomics, North-West University, Potchefstroom, South Africa
| | - Ilse du Preez
- Human Metabolomics, North-West University, Potchefstroom, South Africa.
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14
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Takai M, Okuda A, Amano Y, Yashiro N, Hara K, Yamamoto M, Tsujiuchi T. Effects of LPA receptor-mediated signaling on the modulation of cellular functions of pancreatic cancer cells cultured in fibroblast supernatants under hypoxic conditions. J Bioenerg Biomembr 2023:10.1007/s10863-023-09969-4. [PMID: 37219648 DOI: 10.1007/s10863-023-09969-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Accepted: 05/18/2023] [Indexed: 05/24/2023]
Abstract
The tumor microenvironment (TME) consists of various cell types, including fibroblasts. The TME plays a central role in the promotion of tumor progression. In the present study, we investigated whether lysophosphatidic acid (LPA) receptor-mediated signaling regulates cellular functions by the TME of pancreatic cancer PANC-1 cells. To obtain fibroblast 3T3 cell supernatants, 3T3 cells were cultured in 5% charcoal stripped FCS-DMEM for 48 h. LPAR2 and LPAR3 expression levels were elevated in PANC-1 cells cultured in 3T3 cell supernatants. While PANC-1 cell motility was decreased by 3T3 cell supernatants, the cell survival to cisplatin (CDDP) of PANC-1 cells was markedly enhanced. Moreover, the cell survival to CDDP of PANC-1 cells cultured in 3T3 cell supernatants was increased by GRI-977,143 (LPA2 agonist) and (2 S)-OMPT (LPA3 agonist). Since hypoxia is caused by the restriction of adequate vascular networks to deliver oxygen into solid tumors, PANC-1 cells were cultured in 3T3 cell supernatants at 1% O2 conditions. The cell survival to CDDP of PANC-1 cells cultured in 3T3 cell supernatants at 1% O2 was significantly elevated, correlating with LPAR2 and LPAR3 expressions. These results suggest that LPA signaling via LPA2 and LPA3 is involved in the promotion of malignant properties by the TME in PANC-1 cells.
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Affiliation(s)
- Miwa Takai
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, 577-8502, Osaka, Japan
| | - Aya Okuda
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, 577-8502, Osaka, Japan
| | - Yuka Amano
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, 577-8502, Osaka, Japan
| | - Narumi Yashiro
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, 577-8502, Osaka, Japan
| | - Koki Hara
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, 577-8502, Osaka, Japan
| | - Mao Yamamoto
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, 577-8502, Osaka, Japan
| | - Toshifumi Tsujiuchi
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, 577-8502, Osaka, Japan.
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15
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Njeim R, Alkhansa S, Fornoni A. Unraveling the Crosstalk between Lipids and NADPH Oxidases in Diabetic Kidney Disease. Pharmaceutics 2023; 15:pharmaceutics15051360. [PMID: 37242602 DOI: 10.3390/pharmaceutics15051360] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 04/25/2023] [Accepted: 04/25/2023] [Indexed: 05/28/2023] Open
Abstract
Diabetic kidney disease (DKD) is a serious complication of diabetes mellitus and a leading cause of end-stage renal disease. Abnormal lipid metabolism and intrarenal accumulation of lipids have been shown to be strongly correlated with the development and progression of diabetic kidney disease (DKD). Cholesterol, phospholipids, triglycerides, fatty acids, and sphingolipids are among the lipids that are altered in DKD, and their renal accumulation has been linked to the pathogenesis of the disease. In addition, NADPH oxidase-induced production of reactive oxygen species (ROS) plays a critical role in the development of DKD. Several types of lipids have been found to be tightly linked to NADPH oxidase-induced ROS production. This review aims to explore the interplay between lipids and NADPH oxidases in order to provide new insights into the pathogenesis of DKD and identify more effective targeted therapies for the disease.
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Affiliation(s)
- Rachel Njeim
- Katz Family Division of Nephrology and Hypertension, Department of Medicine, University of Miami Miller School of Medicine, Miami, FL 33136, USA
- Peggy and Harold Katz Family Drug Discovery Center, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Sahar Alkhansa
- Department of Anatomy, Cell Biology and Physiological Sciences, Faculty of Medicine, American University of Beirut, Beirut 1107-2020, Lebanon
- AUB Diabetes, American University of Beirut, Beirut 1107-2020, Lebanon
| | - Alessia Fornoni
- Katz Family Division of Nephrology and Hypertension, Department of Medicine, University of Miami Miller School of Medicine, Miami, FL 33136, USA
- Peggy and Harold Katz Family Drug Discovery Center, University of Miami Miller School of Medicine, Miami, FL 33136, USA
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16
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Dacheux MA, Norman DD, Tigyi GJ, Lee SC. Emerging roles of lysophosphatidic acid receptor subtype 5 (LPAR5) in inflammatory diseases and cancer. Pharmacol Ther 2023; 245:108414. [PMID: 37061203 DOI: 10.1016/j.pharmthera.2023.108414] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 04/10/2023] [Accepted: 04/11/2023] [Indexed: 04/17/2023]
Abstract
Lysophosphatidic acid (LPA) is a bioactive lipid mediator that regulates a variety of cellular functions such as cell proliferation, migration, survival, calcium mobilization, cytoskeletal rearrangements, and neurite retraction. The biological actions of LPA are mediated by at least six G protein-coupled receptors known as LPAR1-6. Given that LPAR1-3 were among the first LPARs identified, the majority of research efforts have focused on understanding their biology. This review provides an in-depth discussion of LPAR5, which has recently emerged as a key player in regulating normal intestinal homeostasis and modulating pathological conditions such as pain, itch, inflammatory diseases, and cancer. We also present a chronological overview of the efforts made to develop compounds that target LPAR5 for use as tool compounds to probe or validate LPAR5 biology and therapeutic agents for the treatment of inflammatory diseases and cancer.
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Affiliation(s)
- Mélanie A Dacheux
- Department of Physiology, College of Medicine, University of Tennessee Health Science Center (UTHSC), Memphis, TN, United States of America
| | - Derek D Norman
- Department of Physiology, College of Medicine, University of Tennessee Health Science Center (UTHSC), Memphis, TN, United States of America
| | - Gábor J Tigyi
- Department of Physiology, College of Medicine, University of Tennessee Health Science Center (UTHSC), Memphis, TN, United States of America
| | - Sue Chin Lee
- Department of Physiology, College of Medicine, University of Tennessee Health Science Center (UTHSC), Memphis, TN, United States of America.
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17
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Kolko M, Mouhammad ZA, Cvenkel B. Is fat the future for saving sight? Bioactive lipids and their impact on glaucoma. Pharmacol Ther 2023; 245:108412. [PMID: 37037408 DOI: 10.1016/j.pharmthera.2023.108412] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 04/03/2023] [Accepted: 04/04/2023] [Indexed: 04/12/2023]
Abstract
Glaucoma is characterized by a continuous loss of retinal ganglion cells. The cause of glaucoma is associated with an increase in intraocular pressure (IOP), but the underlying pathophysiology is diverse and, in most cases, unknown. There is an indisputable unmet need to identify new pathways involved in glaucoma pathogenesis. Increasing evidence suggests that bioactive lipids may be critical in the development and progression of glaucoma. Preclinical and clinical bioactive lipid targets exist and are being developed. In this review, we aim to shed light on the potential of bioactive lipids for the prevention, diagnosis, prognosis, and treatment of glaucoma by asking the question "is fat the future for saving sight".
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Affiliation(s)
- Miriam Kolko
- Department of Drug Design and Pharmacology, University of Copenhagen, Denmark; Department of Ophthalmology, Copenhagen University Hospital, Rigshospitalet, Glostrup, Denmark.
| | | | - Barbara Cvenkel
- Department of Ophthalmology, University Medical Centre Ljubljana, Ljubljana, Slovenia; Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
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18
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Szeremeta M, Samczuk P, Pietrowska K, Kowalczyk T, Przeslaw K, Sieminska J, Kretowski A, Niemcunowicz-Janica A, Ciborowski M. In Vitro Animal Model for Estimating the Time since Death with Attention to Early Postmortem Stage. Metabolites 2022; 13:metabo13010026. [PMID: 36676951 PMCID: PMC9861157 DOI: 10.3390/metabo13010026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 12/19/2022] [Accepted: 12/20/2022] [Indexed: 12/28/2022] Open
Abstract
Estimating the postmortem interval (PMI) has remained the subject of investigations in forensic medicine for many years. Every kind of death results in changes in metabolites in body tissues and fluids due to lack of oxygen, altered circulation, enzymatic reactions, cellular degradation, and cessation of anabolic production of metabolites. Metabolic changes may provide markers determining the time since death, which is challenging in current analytical and observation-based methods. The study includes metabolomics analysis of blood with the use of an animal model to determine the biochemical changes following death. LC-MS is used to fingerprint postmortem porcine blood. Metabolites, significantly changing in blood after death, are selected and identified using univariate statistics. Fifty-one significant metabolites are found to help estimate the time since death in the early postmortem stage. Hypoxanthine, lactic acid, histidine, and lysophosphatidic acids are found as the most promising markers in estimating an early postmortem stage. Selected lysophosphatidylcholines are also found as significantly increased in blood with postmortal time, but their practical utility as PMI indicators can be limited due to a relatively low increasing rate. The findings demonstrate the great potential of LC-MS-based metabolomics in determining the PMI due to sudden death and provide an experimental basis for applying this attitude in investigating various mechanisms of death. As we assume, our study is also one of the first in which the porcine animal model is used to establish PMI metabolomics biomarkers.
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Affiliation(s)
- Michal Szeremeta
- Department of Forensic Medicine, Medical University of Bialystok, 15-269 Bialystok, Poland
- Correspondence:
| | - Paulina Samczuk
- Metabolomics Laboratory, Clinical Research Center, Medical University of Bialystok, 15-276 Bialystok, Poland
| | - Karolina Pietrowska
- Metabolomics Laboratory, Clinical Research Center, Medical University of Bialystok, 15-276 Bialystok, Poland
| | - Tomasz Kowalczyk
- Metabolomics Laboratory, Clinical Research Center, Medical University of Bialystok, 15-276 Bialystok, Poland
| | - Katarzyna Przeslaw
- Department of Physical Chemistry, Medical University of Bialystok, 15-328 Bialystok, Poland
| | - Julia Sieminska
- Metabolomics Laboratory, Clinical Research Center, Medical University of Bialystok, 15-276 Bialystok, Poland
| | - Adam Kretowski
- Metabolomics Laboratory, Clinical Research Center, Medical University of Bialystok, 15-276 Bialystok, Poland
- Department of Endocrinology, Diabetology and Internal Medicine, Medical University of Bialystok, 15-276 Bialystok, Poland
| | | | - Michal Ciborowski
- Metabolomics Laboratory, Clinical Research Center, Medical University of Bialystok, 15-276 Bialystok, Poland
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Zhang D, Decker AM, Woodhouse K, Snyder R, Patel P, Harris DL, Tao YX, Li JX, Zhang Y. Isoquinolone derivatives as lysophosphatidic acid receptor 5 (LPA5) antagonists: Investigation of structure-activity relationships, ADME properties and analgesic effects. Eur J Med Chem 2022; 243:114741. [PMID: 36126387 PMCID: PMC10155261 DOI: 10.1016/j.ejmech.2022.114741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 08/26/2022] [Accepted: 09/01/2022] [Indexed: 11/18/2022]
Abstract
Blockade of lysophosphatidic acid receptor 5 (LPA5) by a recently reported antagonist AS2717638 (2) attenuated inflammatory and neuropathic pains, although it showed moderate in vivo efficacy and its structure-activity relationships and the ADME properties are little studied. We therefore designed and synthesized a series of isoquinolone derivatives and evaluated their potency in LPA5 calcium mobilization and cAMP assays. Our results show that substituted phenyl groups or bicyclic aromatic rings such as benzothiophenes or benzofurans are tolerated at the 2-position, 4-substituted piperidines are favored at the 4-position, and methoxy groups at the 6- and 7-positions are essential for activity. Compounds 65 and 66 showed comparable in vitro potency, excellent selectivity against LPA1-LPA4 and >50 other GPCRs, moderate metabolic stability, and high aqueous solubility and brain permeability. Both 65 and 66 significantly attenuated nociceptive hypersensitivity at lower doses than 2 and had longer-lasting effects in an inflammatory pain model, and 66 also dose-dependently reduced mechanical allodynia in the chronic constriction injury model and opioid-induced hyperalgesia at doses that had no effect on the locomotion in rats. These results suggest that these isoquinolone derivatives as LPA5 antagonists are of promise as potential analgesics.
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Affiliation(s)
- Dehui Zhang
- Research Triangle Institute, Research Triangle Park, NC, 27709, USA
| | - Ann M Decker
- Research Triangle Institute, Research Triangle Park, NC, 27709, USA
| | - Kristen Woodhouse
- Department of Pharmacology and Toxicology, University at Buffalo, The State University of New York, Buffalo, NY, 14203, USA
| | - Rodney Snyder
- Research Triangle Institute, Research Triangle Park, NC, 27709, USA
| | - Purvi Patel
- Research Triangle Institute, Research Triangle Park, NC, 27709, USA
| | - Danni L Harris
- Research Triangle Institute, Research Triangle Park, NC, 27709, USA
| | - Yuan-Xiang Tao
- Department of Anesthesiology, New Jersey Medical School, Rutgers, The State University of New Jersey, Newark, NJ, 07103, USA
| | - Jun-Xu Li
- Department of Pharmacology and Toxicology, University at Buffalo, The State University of New York, Buffalo, NY, 14203, USA
| | - Yanan Zhang
- Research Triangle Institute, Research Triangle Park, NC, 27709, USA.
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20
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Spencer SA, Suárez-Pozos E, Verdugo JS, Wang H, Afshari FS, Li G, Manam S, Yasuda D, Ortega A, Lister JA, Ishii S, Zhang Y, Fuss B. Lysophosphatidic acid signaling via LPA 6 : A negative modulator of developmental oligodendrocyte maturation. J Neurochem 2022; 163:478-499. [PMID: 36153691 PMCID: PMC9772207 DOI: 10.1111/jnc.15696] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Revised: 09/20/2022] [Accepted: 09/21/2022] [Indexed: 01/14/2023]
Abstract
The developmental process of central nervous system (CNS) myelin sheath formation is characterized by well-coordinated cellular activities ultimately ensuring rapid and synchronized neural communication. During this process, myelinating CNS cells, namely oligodendrocytes (OLGs), undergo distinct steps of differentiation, whereby the progression of earlier maturation stages of OLGs represents a critical step toward the timely establishment of myelinated axonal circuits. Given the complexity of functional integration, it is not surprising that OLG maturation is controlled by a yet fully to be defined set of both negative and positive modulators. In this context, we provide here first evidence for a role of lysophosphatidic acid (LPA) signaling via the G protein-coupled receptor LPA6 as a negative modulatory regulator of myelination-associated gene expression in OLGs. More specifically, the cell surface accessibility of LPA6 was found to be restricted to the earlier maturation stages of differentiating OLGs, and OLG maturation was found to occur precociously in Lpar6 knockout mice. To further substantiate these findings, a novel small molecule ligand with selectivity for preferentially LPA6 and LPA6 agonist characteristics was functionally characterized in vitro in primary cultures of rat OLGs and in vivo in the developing zebrafish. Utilizing this approach, a negative modulatory role of LPA6 signaling in OLG maturation could be corroborated. During development, such a functional role of LPA6 signaling likely serves to ensure timely coordination of circuit formation and myelination. Under pathological conditions as seen in the major human demyelinating disease multiple sclerosis (MS), however, persistent LPA6 expression and signaling in OLGs can be seen as an inhibitor of myelin repair. Thus, it is of interest that LPA6 protein levels appear elevated in MS brain samples, thereby suggesting that LPA6 signaling may represent a potential new druggable pathway suitable to promote myelin repair in MS.
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Affiliation(s)
- Samantha A Spencer
- Department of Anatomy and Neurobiology, Virginia Commonwealth University School of Medicine, Richmond, Virginia, USA
| | - Edna Suárez-Pozos
- Department of Anatomy and Neurobiology, Virginia Commonwealth University School of Medicine, Richmond, Virginia, USA
| | - Jazmín Soto Verdugo
- Department of Anatomy and Neurobiology, Virginia Commonwealth University School of Medicine, Richmond, Virginia, USA
- Departamento de Toxicología, Centro de Investigación y de Estudios Avanzados del IPN, Ciudad de México, México
| | - Huiqun Wang
- Department of Medicinal Chemistry, Virginia Commonwealth University School of Pharmacy, Richmond, Virginia, USA
| | - Fatemah S Afshari
- Department of Anatomy and Neurobiology, Virginia Commonwealth University School of Medicine, Richmond, Virginia, USA
| | - Guo Li
- Department of Medicinal Chemistry, Virginia Commonwealth University School of Pharmacy, Richmond, Virginia, USA
| | - Susmita Manam
- Department of Anatomy and Neurobiology, Virginia Commonwealth University School of Medicine, Richmond, Virginia, USA
| | - Daisuke Yasuda
- Department of Immunology, Akita University Graduate School of Medicine, Akita, Japan
| | - Arturo Ortega
- Departamento de Toxicología, Centro de Investigación y de Estudios Avanzados del IPN, Ciudad de México, México
| | - James A Lister
- Department of Human and Molecular Genetics, Virginia Commonwealth University School of Medicine, Richmond, Virginia, USA
| | - Satoshi Ishii
- Department of Immunology, Akita University Graduate School of Medicine, Akita, Japan
| | - Yan Zhang
- Department of Medicinal Chemistry, Virginia Commonwealth University School of Pharmacy, Richmond, Virginia, USA
| | - Babette Fuss
- Department of Anatomy and Neurobiology, Virginia Commonwealth University School of Medicine, Richmond, Virginia, USA
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21
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Shimura T, Kurano M, Okamoto K, Jubishi D, Hashimoto H, Kano K, Igarashi K, Shimamoto S, Aoki J, Moriya K, Yatomi Y. Decrease in serum levels of autotaxin in COVID-19 patients. Ann Med 2022; 54:3189-3200. [PMID: 36369824 PMCID: PMC9665086 DOI: 10.1080/07853890.2022.2143554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
INTRODUCTION In order to identify therapeutic targets in Coronavirus disease 2019 (COVID-19), it is important to identify molecules involved in the biological responses that are modulated in COVID-19. Lysophosphatidic acids (LPAs) are involved in the pulmonary inflammation and fibrosis are one of the candidate molecules. The aim of this study was to evaluate the association between the serum levels of autotaxin (ATX), which are enzymes involved in the synthesis of lysophosphatidic acids. MATERIAL AND METHODS We enrolled 134 subjects with COVID-19 and 58 normal healthy subjects for the study. We measured serum ATX levels longitudinally in COVID-19 patients and investigated the time course and the association with severity and clinical parameters. RESULTS The serum ATX levels were reduced in all patients with COVID-19, irrespective of the disease severity, and were negatively associated with the serum CRP, D-dimer, and anti-severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) antibody levels. DISCUSSION Considering the biological properties of LPAs in the pulmonary inflammation and fibrosis, modulation of ATX might be compensatory biological responses to suppress immunological overreaction especially in the lung, which is an important underlying mechanism for the mortality of the disease. CONCLUSIONS COVID-19 patients showed a decrease in the serum levels of ATX, irrespective of the disease severity. Key MessagesAutotaxin (ATX) is an enzyme involved in the synthesis of lysophosphatidic acid (LPA), which has been reported to be involved in pulmonary inflammation and fibrosis. Patients with COVID-19 show decrease in the serum levels of ATX. Modulation of ATX might be compensatory biological responses to suppress immunological overreaction.
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Affiliation(s)
- Takuya Shimura
- Department of Clinical Laboratory, The University of Tokyo Hospital, Tokyo, Japan
| | - Makoto Kurano
- Department of Clinical Laboratory, The University of Tokyo Hospital, Tokyo, Japan.,Department of Clinical Laboratory Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Koh Okamoto
- Department of Infectious Diseases, The University of Tokyo Hospital, Tokyo, Japan
| | - Daisuke Jubishi
- Department of Infectious Diseases, The University of Tokyo Hospital, Tokyo, Japan
| | - Hideki Hashimoto
- Department of Infectious Diseases, The University of Tokyo Hospital, Tokyo, Japan
| | - Kuniyuki Kano
- Department of Health Chemistry, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan
| | - Koji Igarashi
- Bioscience Division, TOSOH Corporation, Kanagawa, Japan
| | | | - Junken Aoki
- Department of Health Chemistry, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan
| | - Kyoji Moriya
- Department of Infectious Diseases, The University of Tokyo Hospital, Tokyo, Japan
| | - Yutaka Yatomi
- Department of Clinical Laboratory, The University of Tokyo Hospital, Tokyo, Japan.,Department of Clinical Laboratory Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
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22
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Wang H, Li M, St Onge CM, Fuss B, Zhang Y. Elucidating the binding mechanism of LPA species and analogs in an LPA 4 receptor homology model. J Mol Graph Model 2022; 116:108274. [PMID: 35868118 DOI: 10.1016/j.jmgm.2022.108274] [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: 04/17/2022] [Revised: 07/04/2022] [Accepted: 07/10/2022] [Indexed: 12/15/2022]
Abstract
Lysophosphatidic acid receptor 4 (LPA4) has emerged as a potential therapeutic target for the treatment of a variety of diseases, including cancer and obesity-induced diabetes, but its structure remains to be revealed. In the present work, a homology model of LPA4 was built for studying the binding mechanism of LPA species and analogs. Then five selected LPA species and analogs with structural variations in their phosphate groups, substitutions on the glycerol backbone, and fatty acyl chains were docked into the LPA4 model, followed by molecular dynamics simulations and energy analyses. The computational results revealed that the aliphatic residues located at the vertical cleft of LPA4 may form a hydrophobic environment for the fatty acyl moiety of LPA species and their analogs. Meanwhile, the positively charged residues in the central cavity of LPA4 may form ionic interactions with the negatively charged hydrophilic head group of LPA species and their analogs. In addition, it was noted that a different binding mode of the hydrophilic head group in each species with the central cavity of the LPA4 might lead to a special rearrangement of the fatty acyl moiety. Taken together, these results may facilitate understanding of the activation mechanism of LPA4 and help design selective ligands to modulate its function for therapeutic purposes.
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Affiliation(s)
- Huiqun Wang
- Department of Medicinal Chemistry, School of Pharmacy, Virginia Commonwealth University, Richmond, VA, 23298, United States
| | - Mengchu Li
- Department of Medicinal Chemistry, School of Pharmacy, Virginia Commonwealth University, Richmond, VA, 23298, United States
| | - Celsey M St Onge
- Department of Medicinal Chemistry, School of Pharmacy, Virginia Commonwealth University, Richmond, VA, 23298, United States
| | - Babette Fuss
- Department of Anatomy and Neurobiology, Virginia Commonwealth University Medical Center, Richmond, VA, 23298, United States
| | - Yan Zhang
- Department of Medicinal Chemistry, School of Pharmacy, Virginia Commonwealth University, Richmond, VA, 23298, United States.
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23
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Lysophosphatidylinositol Induced Morphological Changes and Stress Fiber Formation through the GPR55-RhoA-ROCK Pathway. Int J Mol Sci 2022; 23:ijms231810932. [PMID: 36142844 PMCID: PMC9504244 DOI: 10.3390/ijms231810932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 09/14/2022] [Accepted: 09/15/2022] [Indexed: 11/30/2022] Open
Abstract
We previously reported that lysophosphatidylinositol (LPI) functions as an endogenous agonist of GPR55, a novel cannabinoid receptor. However, the physiological roles of LPI-GPR55 have not yet been elucidated in detail. In the present study, we found that LPI induced morphological changes in GPR55-expressing HEK293 cells. LPI induced the cell rounding of GPR55-expressing HEK293 cells but not of empty-vector-transfected cells. LPI also induced the activation of small GTP-binding protein RhoA and increased stress fiber formation in GPR55-expressing HEK293 cells. The inhibition of RhoA and Rho kinase ROCK by the C3 exoenzyme and the ROCK inhibitor reduced LPI-induced cell rounding and stress fiber formation. These results clearly indicated that the LPI-induced morphological changes and the assembly of the cytoskeletons were mediated through the GPR55-RhoA-ROCK pathway.
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24
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Dong H, Zhang Y, Huang Y, Deng H. Pathophysiology of RAGE in inflammatory diseases. Front Immunol 2022; 13:931473. [PMID: 35967420 PMCID: PMC9373849 DOI: 10.3389/fimmu.2022.931473] [Citation(s) in RCA: 45] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 07/06/2022] [Indexed: 12/24/2022] Open
Abstract
The receptor for advanced glycation end products (RAGE) is a non-specific multi-ligand pattern recognition receptor capable of binding to a range of structurally diverse ligands, expressed on a variety of cell types, and performing different functions. The ligand-RAGE axis can trigger a range of signaling events that are associated with diabetes and its complications, neurological disorders, cancer, inflammation and other diseases. Since RAGE is involved in the pathophysiological processes of many diseases, targeting RAGE may be an effective strategy to block RAGE signaling.
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25
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Ueno T, Takase K, Toyama C, Deguchi K, Masahata K, Nomura M, Watanabe M, Kamiyama M, Tazuke Y, Bessho K, Okuyama H. Clinical implications of serum autotoxin in regular follow up after pediatric living donor liver transplantation for biliary atresia. J Pediatr Surg 2022; 57:1215-1220. [PMID: 35396089 DOI: 10.1016/j.jpedsurg.2022.02.041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 02/23/2022] [Indexed: 11/26/2022]
Abstract
BACKGROUND Pediatric patients sometimes develop graft fibrosis after living donor liver transplant (LDLT). Autotaxin is a recently developed serum marker for hepatic fibrosis. We studied the relationship between serum autotaxin levels and histological findings in patients after LDLT for biliary atresia (BA). METHODS Information on patients aged <19 years who received LDLT for BA and were followed for at least 1 year after LDLT was gathered. Autotaxin levels were compared with pathological fibrosis scores. RESULTS The study included 52 patients, of whom 4 patients had no fibrosis (F0), 36 patients had F1 fibrosis, and 12 patients had F2. The median serum autotaxin level was 0.89 mg/L. In patients with portal vein (PV) complications such as stenosis or thrombosis (n = 7), the mean autotoxin level was 1.25 mg/L compared with 0.95 mg/L in patients without PV complications (p = 0.004). Among patients without PV complications, the mean autotaxin level was 0.90, 0.88, and 1.18 mg/L in F0, F1, and F2 fibrosis, respectively. The mean autotaxin was higher in F2 fibrosis than in F0 or F1 fibrosis (p<0.05). Autotoxin had a high area under the curve (0.86) with the cut-off level of 0.897 mg/L. CONCLUSION Serum autotaxin is a novel marker for liver fibrosis in patients after pediatric LDLT for BA. TYPE OF STUDY Study of Diagnostic Test. LEVEL OF EVIDENCE Level II.
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Affiliation(s)
- Takehisa Ueno
- Department of Pediatric Surgery, Osaka University of Graduation School of Medicine, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan.
| | - Koki Takase
- Department of Pediatric Surgery, Osaka University of Graduation School of Medicine, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Chiyoshi Toyama
- Department of Pediatric Surgery, Osaka University of Graduation School of Medicine, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Koichi Deguchi
- Department of Pediatric Surgery, Osaka University of Graduation School of Medicine, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Kazunori Masahata
- Department of Pediatric Surgery, Osaka University of Graduation School of Medicine, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Motonari Nomura
- Department of Pediatric Surgery, Osaka University of Graduation School of Medicine, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Miho Watanabe
- Department of Pediatric Surgery, Osaka University of Graduation School of Medicine, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Masafumi Kamiyama
- Department of Pediatric Surgery, Osaka University of Graduation School of Medicine, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Yuko Tazuke
- Department of Pediatric Surgery, Osaka University of Graduation School of Medicine, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Kazuhiko Bessho
- Department of Pediatrics, Osaka University of Graduation School of Medicine, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Hiroomi Okuyama
- Department of Pediatric Surgery, Osaka University of Graduation School of Medicine, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan
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26
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Fu Y, He Y, Phan K, Pickford R, Kim YB, Dzamko N, Halliday GM, Kim WS. Sex-specific lipid dysregulation in the Abca7 knockout mouse brain. Brain Commun 2022; 4:fcac120. [PMID: 35620166 PMCID: PMC9127619 DOI: 10.1093/braincomms/fcac120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 02/06/2022] [Accepted: 05/09/2022] [Indexed: 11/12/2022] Open
Abstract
Alzheimer’s disease is a devastating neurodegenerative disease that affects more women than men. The pathomechanism underlying the sex disparity, especially in the brain, is unclear. ABCA7 is one of the strongest susceptibility genes for Alzheimer’s disease. It mediates the transport of lipids across membranes and is associated with pathways related to amyloid-β neuropathology. However, the role of ABCA7 in the regulation of brain lipids is largely unknown. Sex-specific differences in the pathological link between brain lipid dysregulation and amyloid-β are also unknown. Here, we undertook quantitative discovery lipidomics of male and female Abca7 knockout (n = 52) and wild type (n = 35) mouse brain using sophisticated liquid chromatography/mass spectrometry. We identified 61 lipid subclasses in the mouse brain and found sex-specific differences in lipids that were altered with Abca7 deletion. The altered lipids belong to cellular pathways that control cell signalling, sterol metabolism, mitochondrial function and neuroprotection. We also investigated the relationship between lipids and amyloid-β levels in the Abca7 knockout mice and found elevated free cholesterol only in female mice that was significantly correlated with amyloid-β42 levels. In male Abca7 knockout mice, the neuroprotective ganglioside GD1a levels were elevated and inversely correlated with amyloid-β42 levels. Collectively, these results demonstrate that Abca7 deletion leads to sex-specific lipid dysregulation in the brain, providing insight into the underlying sex disparity in the aetiology of Alzheimer’s disease.
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Affiliation(s)
- YuHong Fu
- Brain and Mind Centre, The University of Sydney, Sydney, NSW 2050, Australia
- Faculty of Medicine and Health, School of Medical Sciences, The University of Sydney, Sydney, NSW, Australia
| | - Ying He
- Brain and Mind Centre, The University of Sydney, Sydney, NSW 2050, Australia
- Faculty of Medicine and Health, School of Medical Sciences, The University of Sydney, Sydney, NSW, Australia
| | - Katherine Phan
- Brain and Mind Centre, The University of Sydney, Sydney, NSW 2050, Australia
- Faculty of Medicine and Health, School of Medical Sciences, The University of Sydney, Sydney, NSW, Australia
| | - Russell Pickford
- Bioanalytical Mass Spectrometry Facility, University of New South Wales, Sydney, NSW, Australia
| | - Young-Bum Kim
- Division of Endocrinology, Diabetes, and Metabolism, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA
| | - Nicolas Dzamko
- Brain and Mind Centre, The University of Sydney, Sydney, NSW 2050, Australia
- Faculty of Medicine and Health, School of Medical Sciences, The University of Sydney, Sydney, NSW, Australia
| | - Glenda M. Halliday
- Brain and Mind Centre, The University of Sydney, Sydney, NSW 2050, Australia
- Faculty of Medicine and Health, School of Medical Sciences, The University of Sydney, Sydney, NSW, Australia
- School of Medical Sciences, University of New South Wales & Neuroscience Research Australia, Sydney, NSW, Australia
| | - Woojin Scott Kim
- Brain and Mind Centre, The University of Sydney, Sydney, NSW 2050, Australia
- Faculty of Medicine and Health, School of Medical Sciences, The University of Sydney, Sydney, NSW, Australia
- School of Medical Sciences, University of New South Wales & Neuroscience Research Australia, Sydney, NSW, Australia
- Correspondence to: W. S. Kim Brain and Mind Centre The University of Sydney Camperdown, NSW 2050, Australia E-mail:
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27
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Naruse T, Otake H, Takahashi T. Effects of a Lysophosphatidic Acid Receptor 1 Antagonist on Hypertensive Renal Injury in Dahl-Iwai Salt-Sensitive Rats. J Pharmacol Sci 2022; 149:179-188. [DOI: 10.1016/j.jphs.2022.05.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 03/13/2022] [Accepted: 05/06/2022] [Indexed: 11/25/2022] Open
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28
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Single-cell RNA sequencing identifies a migratory keratinocyte subpopulation expressing THBS1 in epidermal wound healing. iScience 2022; 25:104130. [PMID: 35391830 PMCID: PMC8980802 DOI: 10.1016/j.isci.2022.104130] [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: 04/15/2021] [Revised: 10/19/2021] [Accepted: 03/17/2022] [Indexed: 11/30/2022] Open
Abstract
Keratinocyte differentiation is an intricate process that is regulated by multiple mediators. Using cultured human keratinocytes, we found that lysophosphatidic acid (LPA) induced the differentiation of a previously unsuspected keratinocyte subpopulation expressing the extracellular matrix protein, thrombospondin-1 (THBS1). This action of LPA was mediated by the RHO/ROCK-SRF signaling downstream of LPA1 and LPA5 receptors and required ERK activity. Suppression of THBS1 in vitro suggested a migratory role of THBS1+ keratinocytes. Moreover, we analyzed publicly deposited single-cell RNA sequencing dataset and identified Thbs1-expressing keratinocytes in the mouse wound skin. Immunohistochemistry analysis revealed that Thbs1+ keratinocytes were apparently differentiated from basal keratinocytes upon wounding, subsequently polarized and migrated suprabasally toward the wound front, and eventually underwent terminal differentiation in the neo-epidermis. Importantly, inhibition of Erk activity suppressed Thbs1+ keratinocyte differentiation in wound healing. Based on these findings, we suggest that THBS1+ keratinocyte is a migratory keratinocyte subpopulation that facilitates epidermal wound healing. Single-cell RNA sequencing reveals a keratinocyte subpopulation expressing THBS1 LPA and ERK activity are required for the induction of THBS1+ keratinocyte Thbs1+ keratinocytes are differentiated from basal keratinocytes upon epidermal wounding Thbs1+ keratinocytes are migratory cells and may contribute to epidermal wound healing
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29
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Kudo K, Miki Y, Carreras J, Nakayama S, Nakamoto Y, Ito M, Nagashima E, Yamamoto K, Higuchi H, Morita SY, Inoue A, Aoki J, Ando K, Nakamura N, Murakami M, Kotani A. Secreted phospholipase A 2 modifies extracellular vesicles and accelerates B cell lymphoma. Cell Metab 2022; 34:615-633.e8. [PMID: 35294862 DOI: 10.1016/j.cmet.2022.02.011] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 11/15/2021] [Accepted: 02/22/2022] [Indexed: 12/26/2022]
Abstract
Extracellular vesicles (EVs) including exosomes act as intercellular communicators by transferring protein and microRNA cargoes, yet the role of EV lipids remains unclear. Here, we show that the pro-tumorigenic action of lymphoma-derived EVs is augmented via secreted phospholipase A2 (sPLA2)-driven lipid metabolism. Hydrolysis of EV phospholipids by group X sPLA2, which was induced in macrophages of Epstein-Barr virus (EBV) lymphoma, increased the production of fatty acids, lysophospholipids, and their metabolites. sPLA2-treated EVs were smaller and self-aggregated, showed better uptake, and increased cytokine expression and lipid mediator signaling in tumor-associated macrophages. Pharmacological inhibition of endogenous sPLA2 suppressed lymphoma growth in EBV-infected humanized mice, while treatment with sPLA2-modified EVs reversed this phenotype. Furthermore, sPLA2 expression in human large B cell lymphomas inversely correlated with patient survival. Overall, the sPLA2-mediated EV modification promotes tumor development, highlighting a non-canonical mechanistic action of EVs as an extracellular hydrolytic platform of sPLA2.
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Affiliation(s)
- Kai Kudo
- Department of Innovative Medical Science, Tokai University School of Medicine, Isehara, Japan; Division of Hematological Malignancy, Institute of Medical Sciences, Tokai University, Isehara, Japan
| | - Yoshimi Miki
- Laboratory of Microenvironmental Metabolic Health Sciences Center for Disease Biology and Integrative Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Joaquim Carreras
- Department of Pathology, Tokai University School of Medicine, Isehara, Japan
| | - Shunya Nakayama
- Department of Innovative Medical Science, Tokai University School of Medicine, Isehara, Japan; Division of Hematological Malignancy, Institute of Medical Sciences, Tokai University, Isehara, Japan; Department of Hematology and Oncology, Tokai University School of Medicine, Isehara, Japan
| | - Yasushi Nakamoto
- Department of Innovative Medical Science, Tokai University School of Medicine, Isehara, Japan; Division of Hematological Malignancy, Institute of Medical Sciences, Tokai University, Isehara, Japan
| | - Masatoshi Ito
- Support Center for Medical Research and Education, Tokai University School of Medicine, Isehara, Japan
| | - Etsuko Nagashima
- Department of Innovative Medical Science, Tokai University School of Medicine, Isehara, Japan; Division of Hematological Malignancy, Institute of Medical Sciences, Tokai University, Isehara, Japan
| | - Kei Yamamoto
- Division of Bioscience and Bioindustry, Graduate School of Technology, Industrial and Social Sciences, Tokushima University, Tokushima, Japan
| | - Hiroshi Higuchi
- Center for Cancer Immunology, Cutaneous Biology Research Center, Center for Cancer Research, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Shin-Ya Morita
- Department of Pharmacy, Shiga University of Medical Science Hospital, Otsu, Japan
| | - Asuka Inoue
- Department of Pharmaceutical Sciences, Tohoku University, Sendai, Japan
| | - Junken Aoki
- Department of Health Chemistry, Graduate School of Pharmaceutical Sciences, University of Tokyo, Tokyo, Japan
| | - Kiyoshi Ando
- Department of Hematology and Oncology, Tokai University School of Medicine, Isehara, Japan
| | - Naoya Nakamura
- Department of Pathology, Tokai University School of Medicine, Isehara, Japan
| | - Makoto Murakami
- Laboratory of Microenvironmental Metabolic Health Sciences Center for Disease Biology and Integrative Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.
| | - Ai Kotani
- Department of Innovative Medical Science, Tokai University School of Medicine, Isehara, Japan; Division of Hematological Malignancy, Institute of Medical Sciences, Tokai University, Isehara, Japan.
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30
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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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31
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Hoshino Y, Okuno T, Saigusa D, Kano K, Yamamoto S, Shindou H, Aoki J, Uchida K, Yokomizo T, Ito N. Lysophosphatidic acid receptor 1/3 antagonist inhibits the activation of satellite glial cells and reduces acute nociceptive responses. FASEB J 2022; 36:e22236. [PMID: 35218596 DOI: 10.1096/fj.202101678r] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 02/10/2022] [Accepted: 02/14/2022] [Indexed: 02/06/2023]
Abstract
Lysophosphatidic acid (LPA) exerts various biological activities through six characterized G protein-coupled receptors (LPA1-6 ). While LPA-LPA1 signaling contributes toward the demyelination and retraction of C-fiber and induces neuropathic pain, the effects of LPA-LPA1 signaling on acute nociceptive pain is uncertain. This study investigated the role of LPA-LPA1 signaling in acute nociceptive pain using the formalin test. The pharmacological inhibition of the LPA-LPA1 axis significantly attenuated formalin-induced nociceptive behavior. The LPA1 mRNA was expressed in satellite glial cells (SGCs) in dorsal root ganglion (DRG) and was particularly abundant in SGCs surrounding large DRG neurons, which express neurofilament 200. Treatment with LPA1/3 receptor (LPA1/3 ) antagonist inhibited the upregulation of glial markers and inflammatory cytokines in DRG following formalin injection. The LPA1/3 antagonist also attenuated phosphorylation of extracellular signal-regulated kinase, especially in SGCs and cyclic AMP response element-binding protein in the dorsal horn following formalin injection. LPA amounts after formalin injection to the footpad were quantified by liquid chromatography/tandem mass spectrometry, and LPA levels were found to be increased in the innervated DRGs. Our results indicate that LPA produced in the innervated DRGs promotes the activation of SGCs through LPA1 , increases the sensitivity of primary neurons, and modulates pain behavior. These results facilitate our understanding of the pathology of acute nociceptive pain and demonstrate the possibility of the LPA1 on SGCs as a novel target for acute pain control.
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Affiliation(s)
- Yoko Hoshino
- Department of Biochemistry, Juntendo University Graduate School of Medicine, Tokyo, Japan.,Department of Anesthesiology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Toshiaki Okuno
- Department of Biochemistry, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Daisuke Saigusa
- Laboratory of Biomedical and Analytical Sciences, Faculty of Pharma-Science, Teikyo University, Tokyo, Japan.,Department of Integrative Genomics, Tohoku University Tohoku Medical Megabank Organization, Sendai, Japan
| | - Kuniyuki Kano
- Department of Health Chemistry, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan
| | - Shota Yamamoto
- Department of Lipid Signaling, National Center for Global Health and Medicine, Tokyo, Japan
| | - Hideo Shindou
- Department of Lipid Signaling, National Center for Global Health and Medicine, Tokyo, Japan.,Department of Lipid Medical Science, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Junken Aoki
- Department of Health Chemistry, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan
| | - Kanji Uchida
- Department of Anesthesiology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Takehiko Yokomizo
- Department of Biochemistry, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Nobuko Ito
- Department of Anesthesiology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
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32
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Hirata N, Yamada S, Yanagida S, Ono A, Yasuhiko Y, Nishida M, Kanda Y. Lysophosphatidic Acid Promotes the Expansion of Cancer Stem Cells via TRPC3 Channels in Triple-Negative Breast Cancer. Int J Mol Sci 2022; 23:ijms23041967. [PMID: 35216080 PMCID: PMC8877950 DOI: 10.3390/ijms23041967] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 02/07/2022] [Accepted: 02/08/2022] [Indexed: 01/27/2023] Open
Abstract
Triple-negative breast cancer (TNBC) is a highly aggressive cancer for which targeted therapeutic agents are limited. Growing evidence suggests that TNBC originates from breast cancer stem cells (BCSCs), and elucidation of the molecular mechanisms controlling BCSC proliferation will be crucial for new drug development. We have previously reported that the lysosphingolipid sphingosine-1-phosphate mediates the CSC phenotype, which can be identified as the ALDH-positive cell population in several types of human cancer cell lines. In this study, we have investigated additional lipid receptors upregulated in BCSCs. We found that lysophosphatidic acid (LPA) receptor 3 was highly expressed in ALDH-positive TNBC cells. The LPAR3 antagonist inhibited the increase in ALDH-positive cells after LPA treatment. Mechanistically, the LPA-induced increase in ALDH-positive cells was dependent on intracellular calcium ion (Ca2+), and the increase in Ca2+ was suppressed by a selective inhibitor of transient receptor potential cation channel subfamily C member 3 (TRPC3). Moreover, IL-8 production was involved in the LPA response via the activation of the Ca2+-dependent transcriptional factor nuclear factor of activated T cells. Taken together, our findings provide new insights into the lipid-mediated regulation of BCSCs via the LPA-TRPC3 signaling axis and suggest several potential therapeutic targets for TNBC.
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Affiliation(s)
- Naoya Hirata
- Division of Pharmacology, National Institute of Health Sciences, Kanagawa 210-9501, Japan; (N.H.); (S.Y.); (S.Y.); (Y.Y.)
- Pharmacological Evaluation Institute of Japan (PEIJ), Ibaraki 305-0031, Japan
| | - Shigeru Yamada
- Division of Pharmacology, National Institute of Health Sciences, Kanagawa 210-9501, Japan; (N.H.); (S.Y.); (S.Y.); (Y.Y.)
- Pharmacological Evaluation Institute of Japan (PEIJ), Ibaraki 305-0031, Japan
| | - Shota Yanagida
- Division of Pharmacology, National Institute of Health Sciences, Kanagawa 210-9501, Japan; (N.H.); (S.Y.); (S.Y.); (Y.Y.)
- Division of Pharmaceutical Sciences, Graduated School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama 700-8530, Japan;
| | - Atsushi Ono
- Division of Pharmaceutical Sciences, Graduated School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama 700-8530, Japan;
| | - Yukuto Yasuhiko
- Division of Pharmacology, National Institute of Health Sciences, Kanagawa 210-9501, Japan; (N.H.); (S.Y.); (S.Y.); (Y.Y.)
| | - Motohiro Nishida
- Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka 812-8582, Japan;
- Exploratory Research Center on Life and Living Systems, National Institutes of Natural Sciences, Aichi 444-8787, Japan
- National Institute for Physiological Sciences, National Institutes of Natural Sciences, Aichi 444-8787, Japan
| | - Yasunari Kanda
- Division of Pharmacology, National Institute of Health Sciences, Kanagawa 210-9501, Japan; (N.H.); (S.Y.); (S.Y.); (Y.Y.)
- Correspondence:
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Abstract
Lysophospholipids, exemplified by lysophosphatidic acid (LPA) and sphingosine 1-phosphate (S1P), are produced by the metabolism and perturbation of biological membranes. Both molecules are established extracellular lipid mediators that signal via specific G protein-coupled receptors in vertebrates. This widespread signaling axis regulates the development, physiological functions, and pathological processes of all organ systems. Indeed, recent research into LPA and S1P has revealed their important roles in cellular stress signaling, inflammation, resolution, and host defense responses. In this review, we focus on how LPA regulates fibrosis, neuropathic pain, abnormal angiogenesis, endometriosis, and disorders of neuroectodermal development such as hydrocephalus and alopecia. In addition, we discuss how S1P controls collective behavior, apoptotic cell clearance, and immunosurveillance of cancers. Advances in lysophospholipid research have led to new therapeutics in autoimmune diseases, with many more in earlier stages of development for a wide variety of diseases, such as fibrotic disorders, vascular diseases, and cancer.
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Affiliation(s)
- Kuniyuki Kano
- Department of Health Chemistry, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo 113-0033, Japan; , .,AMED-LEAP, Japan Agency for Medical Research and Development, Tokyo 100-0004, Japan
| | - Junken Aoki
- Department of Health Chemistry, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo 113-0033, Japan; , .,AMED-LEAP, Japan Agency for Medical Research and Development, Tokyo 100-0004, Japan
| | - Timothy Hla
- Vascular Biology Program, Boston Children's Hospital, Boston, Massachusetts 02115, USA; .,Department of Surgery, Harvard Medical School, Boston, Massachusetts 02115, USA
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34
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Li Y, Jin L, Li Y, Qian J, Wang Z, Zheng X, Xie C, Zhang X, Huang H, Zhou Y. Lysophosphatidic Acid Improves Human Sperm Motility by Enhancing Glycolysis and Activating L-Type Calcium Channels. Front Endocrinol (Lausanne) 2022; 13:896558. [PMID: 35903269 PMCID: PMC9317953 DOI: 10.3389/fendo.2022.896558] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 06/14/2022] [Indexed: 12/04/2022] Open
Abstract
Until now, the molecular mechanisms underlining sperm motility defect causing male infertility are still poorly understood. Safe and effective compounds or drugs that can improve sperm motility are also very limited. Lysophosphatidic acid (LPA) is a naturally occurring phospholipid and a bioactive intermediate with multiple biological activities. It has been detected in various body fluids such as serum, plasma, saliva, tears, blister fluids, hen egg white, and ascites from patients with ovarian cancer. LPA is also abundant in seminal plasma and follicular fluid. It enhances follicle stimulation, improves oocyte fertilization, and promotes early embryonic development and embryo implantation. However, the physiological role of LPA in the male reproductive system remains unknown. Here, our study showed that LPA significantly improved the motility parameters of human sperm hyperactivation in a dose-dependent manner. The LPA-induced elevation of sperm motility is dependent on bovine serum albumin (BSA) but independent of the classical BSA-induced sAC/cAMP/PKA signaling pathway. The enhancement of sperm motility by LPA could not be blocked by CCCP, a respiratory inhibitor suppressing mitochondrial ATP production. Moreover, LPA improved the activity of triosephosphate isomerase in glycolysis. Meanwhile, LPA treatment significantly increased ATP and phosphoenolpyruvate levels and decreased ADP content during sperm glycolysis. Notably, none of known or identified LPA receptors was detected in human sperm. Further investigations showed that LPA promoted sperm motility through L-type calcium channels. In summary, this study revealed the involvement of LPA in the regulation for human sperm motility by enhancing glycolysis and activating L-type calcium channels. The current findings may shed new light on the understanding of causes of asthenozoospermia, and indicate that LPA could be used as a novel therapeutic agent to improve sperm function and fertilizing capacity.
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Affiliation(s)
- Yinlam Li
- International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
- Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China
| | - Li Jin
- Obstetrics & Gynecology Hospital, Institute of Reproduction and Development, Fudan University, Shanghai, China
| | - Yanquan Li
- International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
- Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China
| | - Jianing Qian
- State Key Laboratory of Genetic Engineering, School of Life Science, Fudan University, Shanghai, China
| | - Zhengquan Wang
- International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Xiaoguo Zheng
- International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
- Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China
| | - Chong Xie
- International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Xuelian Zhang
- State Key Laboratory of Genetic Engineering, School of Life Science, Fudan University, Shanghai, China
- *Correspondence: Yuchuan Zhou, ; Hefeng Huang, ; Xuelian Zhang,
| | - Hefeng Huang
- International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
- Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China
- *Correspondence: Yuchuan Zhou, ; Hefeng Huang, ; Xuelian Zhang,
| | - Yuchuan Zhou
- International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
- Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China
- *Correspondence: Yuchuan Zhou, ; Hefeng Huang, ; Xuelian Zhang,
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35
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Inaba A, Harada H, Ikezaki S, Kumakami-Sakano M, Arai H, Azumane M, Ohshima H, Morikawa K, Kano K, Aoki J, Otsu K. LPA6-RhoA signals regulate junctional complexes for polarity and morphology establishment of maturation stage ameloblasts. J Oral Biosci 2022; 64:85-92. [DOI: 10.1016/j.job.2022.01.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 01/06/2022] [Accepted: 12/24/2021] [Indexed: 11/16/2022]
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36
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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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37
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Khatiwada S, Delhon G, Chaulagain S, Rock DL. The novel ORFV protein ORFV113 activates LPA-p38 signaling. PLoS Pathog 2021; 17:e1009971. [PMID: 34614034 PMCID: PMC8523077 DOI: 10.1371/journal.ppat.1009971] [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: 05/18/2021] [Revised: 10/18/2021] [Accepted: 09/26/2021] [Indexed: 11/19/2022] Open
Abstract
Viruses have evolved mechanisms to subvert critical cellular signaling pathways that regulate a wide range of cellular functions, including cell differentiation, proliferation and chemotaxis, and innate immune responses. Here, we describe a novel ORFV protein, ORFV113, that interacts with the G protein-coupled receptor Lysophosphatidic acid receptor 1 (LPA1). Consistent with its interaction with LPA1, ORFV113 enhances p38 kinase phosphorylation in ORFV infected cells in vitro and in vivo, and in cells transiently expressing ORFV113 or treated with soluble ORFV113. Infection of cells with virus lacking ORFV113 (OV-IA82Δ113) significantly decreased p38 phosphorylation and viral plaque size. Infection of cells with ORFV in the presence of a p38 kinase inhibitor markedly diminished ORFV replication, highlighting importance of p38 signaling during ORFV infection. ORFV113 enhancement of p38 activation was prevented in cells in which LPA1 expression was knocked down and in cells treated with LPA1 inhibitor. Infection of sheep with OV-IA82Δ113 led to a strikingly attenuated disease phenotype, indicating that ORFV113 is a major virulence determinant in the natural host. Notably, ORFV113 represents the first viral protein that modulates p38 signaling via interaction with LPA1 receptor.
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Affiliation(s)
- Sushil Khatiwada
- Department of Pathobiology, College of Veterinary Medicine, University of Illinois at Urbana-Champaign, Urbana, Illinois, United States of America
| | - Gustavo Delhon
- School of Veterinary Medicine and Biomedical Sciences, Nebraska Center for Virology, University of Nebraska-Lincoln, Lincoln, Nebraska, United States of America
| | - Sabal Chaulagain
- Department of Pathobiology, College of Veterinary Medicine, University of Illinois at Urbana-Champaign, Urbana, Illinois, United States of America
| | - Daniel L. Rock
- Department of Pathobiology, College of Veterinary Medicine, University of Illinois at Urbana-Champaign, Urbana, Illinois, United States of America
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38
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Choi SH, Won KJ, Lee R, Cho HS, Hwang SH, Nah SY. Wound Healing Effect of Gintonin Involves Lysophosphatidic Acid Receptor/Vascular Endothelial Growth Factor Signaling Pathway in Keratinocytes. Int J Mol Sci 2021; 22:ijms221810155. [PMID: 34576317 PMCID: PMC8467330 DOI: 10.3390/ijms221810155] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 09/14/2021] [Accepted: 09/17/2021] [Indexed: 12/18/2022] Open
Abstract
Gintonin, a novel compound of ginseng, is a ligand of the lysophosphatidic acid (LPA) receptor. The in vitro and in vivo skin wound healing effects of gintonin remain unknown. Therefore, the objective of this study was to investigate the effects of gintonin on wound healing-linked responses, especially migration and proliferation, in skin keratinocytes HaCaT. In this study, 2,3-bis-(2-methoxy-4-nitro-5-sulfophenyl)-2H-tetrazolium-5-carboxanilide assay, Boyden chamber migration assay, scratch wound healing assay, and Western blot assay were performed. A tail wound mouse model was used for the in vivo test. Gintonin increased proliferation, migration, and scratch closure in HaCaT cells. It also increased the release of vascular endothelial growth factor (VEGF) in HaCaT cells. However, these increases, induced by gintonin, were markedly blocked by treatment with Ki16425, an LPA inhibitor, PD98059, an ERK inhibitor, 1,2-Bis(2-aminophenoxy)ethane-N,N,N′,N′-tetraacetic acid tetrakis (acetoxymethyl ester), a calcium chelator, and U73122, a PLC inhibitor. The VEGF receptor inhibitor axitinib also attenuated gintonin-enhanced HaCaT cell proliferation. Gintonin increased the phosphorylation of AKT and ERK1/2 in HaCaT cells. In addition, gintonin improved tail wound healing in mice. These results indicate that gintonin may promote wound healing through LPA receptor activation and/or VEGF release-mediated downstream signaling pathways. Thus, gintonin could be a beneficial substance to facilitate skin wound healing.
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Affiliation(s)
- Sun-Hye Choi
- Ginsentology Research Laboratory and Department of Physiology, College of Veterinary Medicine, Konkuk University, Seoul 05029, Korea; (S.-H.C.); (R.L.); (H.-S.C.)
| | - Kyung-Jong Won
- Department of Physiology and Medical Science, School of Medicine, Konkuk University, Seoul 05029, Korea;
| | - Rami Lee
- Ginsentology Research Laboratory and Department of Physiology, College of Veterinary Medicine, Konkuk University, Seoul 05029, Korea; (S.-H.C.); (R.L.); (H.-S.C.)
| | - Han-Sung Cho
- Ginsentology Research Laboratory and Department of Physiology, College of Veterinary Medicine, Konkuk University, Seoul 05029, Korea; (S.-H.C.); (R.L.); (H.-S.C.)
| | - Sung-Hee Hwang
- Department of Pharmaceutical Engineering, College of Health Sciences, Sangji University, Wonju 26339, Korea
- Correspondence: (S.-H.H.); (S.-Y.N.); Tel.: +82-33-738-7922 (S.-H.H.); +82-2-450-4154 (S.-Y.N.)
| | - Seung-Yeol Nah
- Ginsentology Research Laboratory and Department of Physiology, College of Veterinary Medicine, Konkuk University, Seoul 05029, Korea; (S.-H.C.); (R.L.); (H.-S.C.)
- Correspondence: (S.-H.H.); (S.-Y.N.); Tel.: +82-33-738-7922 (S.-H.H.); +82-2-450-4154 (S.-Y.N.)
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Tserendavga B, Ohshima N, Fujita C, Yuzawa K, Ohshima M, Yanaka N, Minamishima YA, Izumi T. Characterization of recombinant murine GDE4 and GDE7, enzymes producing lysophosphatidic acid and/or cyclic phosphatidic acid. J Biochem 2021; 170:713-727. [PMID: 34523685 DOI: 10.1093/jb/mvab091] [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: 01/21/2021] [Accepted: 07/30/2021] [Indexed: 11/13/2022] Open
Abstract
GDE4 and GDE7 are membrane-bound enzymes that exhibit lysophospholipase D (lysoPLD) activities. We found that GDE7 produced not only lysophosphatidic acid (LPA) but also cyclic phosphatidic acid (cPA) from lysophospholipids by a transphosphatidylation reaction. In contrast, GDE4 produced only LPA. The analysis of substrate specificity showed that 1-alkyl-lysophosphospholipids were preferred substrates for both enzymes rather than 1-alkyl-lysophospholipids and 1-alkenyl-lysophospholipids. Among the various lysophospholipids with different polar head groups that were tested, lysophosphatidylglycerol and lysophosphatidylserine were preferred substrates for GDE4 and GDE7, respectively. The detailed analysis of the dependency of the enzyme activities of GDE4 and GDE7 on divalent cations suggested multiple divalent cations were bound in the active sites of both enzymes. Taken together, these results suggest the possibility that GDE7 functions as a cPA-producing enzyme in the body.
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Affiliation(s)
- Binderiya Tserendavga
- Department of Biochemistry, Gunma University Graduate School of Medicine, Maebashi, Gunma 371-8511, Japan
| | - Noriyasu Ohshima
- Department of Biochemistry, Gunma University Graduate School of Medicine, Maebashi, Gunma 371-8511, Japan
| | - Chiaki Fujita
- Department of Biochemistry, Gunma University Graduate School of Medicine, Maebashi, Gunma 371-8511, Japan
| | - Koji Yuzawa
- Group of Pharmaceutical Analysis, ENVIRONMENTAL TECHNICAL CO., LTD, Takasaki, Gunma 370-3511, Japan
| | - Mari Ohshima
- Department of Biochemistry, Gunma University Graduate School of Medicine, Maebashi, Gunma 371-8511, Japan.,Group of Pharmaceutical Analysis, ENVIRONMENTAL TECHNICAL CO., LTD, Takasaki, Gunma 370-3511, Japan
| | - Noriyuki Yanaka
- Department of Molecular and Applied Bioscience, Graduate School of Biosphere Science, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8528, Japan
| | - Yoji Andrew Minamishima
- Department of Biochemistry, Gunma University Graduate School of Medicine, Maebashi, Gunma 371-8511, Japan
| | - Takashi Izumi
- Department of Biochemistry, Gunma University Graduate School of Medicine, Maebashi, Gunma 371-8511, Japan.,Faculty of Health Care, Teikyo Heisei University, Tokyo, 170-8445, Japan
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40
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Matsuzawa Y, Higashi Y, Takano K, Takahashi M, Yamada Y, Okazaki Y, Nakabayashi R, Saito K, Tsugawa H. Food Lipidomics for 155 Agricultural Plant Products. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:8981-8990. [PMID: 33570932 DOI: 10.1021/acs.jafc.0c07356] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Lipids exhibit functional bioactivities based on their polar and acyl chain properties; humans obtain lipids from dietary plant product intake. Therefore, the identification of different molecular species facilitates the evaluation of biological functions and nutrition levels and new phenotype-modulating lipid structures. As a rapid screening strategy, we performed untargeted lipidomics for 155 agricultural products in 58 species from 23 plant families, wherein product-specific lipid diversities were shown using computational mass spectrometry. We characterized 716 lipid species, for which the profiles revealed the National Center for Biotechnology Information-established organismal classification and unique plant tissue metabotypes. Moreover, we annotated unreported subclasses in plant lipidology; e.g., triacylglycerol estolide (TG-EST) was detected in rice seeds (Oryza sativa) and several plant species. TG-EST is known as the precursor molecule producing the fatty acid ester of hydroxy fatty acid, which lowers ambient glycemia and improves glucose tolerance. Hence, our method can identify agricultural plant products containing valuable lipid ingredients.
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Affiliation(s)
- Yuki Matsuzawa
- RIKEN Center for Sustainable Resource Science, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan
- Department of Biotechnology and Life Science, Tokyo University of Agriculture and Technology, 2-24-16 Nakamachi, Koganei-shi, Tokyo 184-8588, Japan
| | - Yasuhiro Higashi
- RIKEN Center for Sustainable Resource Science, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan
| | - Kouji Takano
- RIKEN Center for Sustainable Resource Science, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan
| | - Mikiko Takahashi
- RIKEN Center for Sustainable Resource Science, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan
| | - Yutaka Yamada
- RIKEN Center for Sustainable Resource Science, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan
| | - Yozo Okazaki
- RIKEN Center for Sustainable Resource Science, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan
- Graduate School of Bioresources, Mie University, 1577 Kurimamachiya-cho, Tsu, Mie 514-8507 Japan
| | - Ryo Nakabayashi
- RIKEN Center for Sustainable Resource Science, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan
| | - Kazuki Saito
- RIKEN Center for Sustainable Resource Science, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan
| | - Hiroshi Tsugawa
- RIKEN Center for Sustainable Resource Science, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan
- RIKEN Center for Integrative Medical Sciences, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan
- Graduate School of Medical Life Science, Yokohama City University, Yokohama, Kanagawa 230-0045, Japan
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Nho K, Kueider-Paisley A, Arnold M, MahmoudianDehkordi S, Risacher SL, Louie G, Blach C, Baillie R, Han X, Kastenmüller G, Doraiswamy PM, Kaddurah-Daouk R, Saykin AJ. Serum metabolites associated with brain amyloid beta deposition, cognition and dementia progression. Brain Commun 2021; 3:fcab139. [PMID: 34396103 PMCID: PMC8361396 DOI: 10.1093/braincomms/fcab139] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Accepted: 06/30/2021] [Indexed: 11/13/2022] Open
Abstract
Metabolomics in the Alzheimer's Disease Neuroimaging Initiative cohort provides a powerful tool for mapping biochemical changes in Alzheimer's disease, and a unique opportunity to learn about the association between circulating blood metabolites and brain amyloid-β deposition in Alzheimer's disease. We examined 140 serum metabolites and their associations with brain amyloid-β deposition, cognition and conversion from mild cognitive impairment to Alzheimer's disease in the Alzheimer's Disease Neuroimaging Initiative. Processed [18F] Florbetapir PET images were used to perform a voxel-wise statistical analysis of the effect of metabolite levels on amyloid-β accumulation across the whole brain. We performed a multivariable regression analysis using age, sex, body mass index, apolipoprotein E ε4 status and study phase as covariates. We identified nine metabolites as significantly associated with amyloid-β deposition after multiple comparison correction. Higher levels of one acylcarnitine (C3; propionylcarnitine) and one biogenic amine (kynurenine) were associated with decreased amyloid-β accumulation and higher memory scores. However, higher levels of seven phosphatidylcholines (lysoPC a C18:2, PC aa C42:0, PC ae C42:3, PC ae C44:3, PC ae C44:4, PC ae C44:5 and PC ae C44:6) were associated with increased brain amyloid-β deposition. In addition, higher levels of PC ae C44:4 were significantly associated with lower memory and executive function scores and conversion from mild cognitive impairment to Alzheimer's disease dementia. Our findings suggest that dysregulation of peripheral phosphatidylcholine metabolism is associated with earlier pathological changes noted in Alzheimer's disease as measured by brain amyloid-β deposition as well as later clinical features including changes in memory and executive functioning. Perturbations in phosphatidylcholine metabolism may point to issues with membrane restructuring leading to the accumulation of amyloid-β in the brain. Additional studies are needed to explore whether these metabolites play a causal role in the pathogenesis of Alzheimer's disease or if they are biomarkers for systemic changes during preclinical phases of the disease.
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Affiliation(s)
- Kwangsik Nho
- Department of Radiology and Imaging Sciences, Center for Computational Biology and Bioinformatics, and the Indiana Alzheimer Disease Center, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | | | - Matthias Arnold
- Department of Psychiatry and Behavioral Sciences, Duke University, Durham, NC 27710, USA
- Institute of Computational Biology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg 85764, Germany
| | | | - Shannon L Risacher
- Department of Radiology and Imaging Sciences, Center for Computational Biology and Bioinformatics, and the Indiana Alzheimer Disease Center, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Gregory Louie
- Department of Psychiatry and Behavioral Sciences, Duke University, Durham, NC 27710, USA
| | - Colette Blach
- Duke Molecular Physiology Institute, Duke University, Durham, NC 27710, USA
| | | | - Xianlin Han
- University of Texas Health Science Center at San Antonio, San Antonio, TX 78249, USA
| | - Gabi Kastenmüller
- Institute of Computational Biology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg 85764, Germany
- German Center for Diabetes Research (DZD), Neuherberg 85764, Germany
| | - P Murali Doraiswamy
- Department of Psychiatry and Behavioral Sciences, Duke University, Durham, NC 27710, USA
- Duke Institute of Brain Sciences, Duke University, Durham, NC 27710, USA
- Department of Medicine, Duke University, Durham, NC 27710, USA
| | - Rima Kaddurah-Daouk
- Department of Psychiatry and Behavioral Sciences, Duke University, Durham, NC 27710, USA
- Duke Institute of Brain Sciences, Duke University, Durham, NC 27710, USA
- Department of Medicine, Duke University, Durham, NC 27710, USA
| | - Andrew J Saykin
- Department of Radiology and Imaging Sciences, Center for Computational Biology and Bioinformatics, and the Indiana Alzheimer Disease Center, Indiana University School of Medicine, Indianapolis, IN 46202, USA
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Ueno T, Toyama C, Yoneyama T, Deguchi K, Nomura M, Saka R, Watanabe M, Tazuke Y, Bessho K, Okuyama H. Impact of serum autotaxin level correlating with histological findings in biliary atresia. J Pediatr Surg 2021; 56:1174-1178. [PMID: 33965235 DOI: 10.1016/j.jpedsurg.2021.03.034] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Accepted: 03/12/2021] [Indexed: 11/19/2022]
Abstract
PURPOSE Portoenterostomy is the standard treatment for biliary atresia (BA) that reduces jaundice in two thirds of cases. However, progressive liver fibrosis is common, leading to cirrhosis in most patients. Autotaxin is a new marker for the progression of hepatic fibrosis. We examined the relationship between serum autotaxin levels and liver histological findings in patients with BA. METHODS BA patients with native livers were identified in our hospital. Patients underwent protocol liver biopsies every 1 to 5 years, and liver fibrosis was evaluated based on the METAVIR score. Serum autotaxin levels were compared with the last available pathological findings. RESULTS Thirty-five patients were included and the median age was 10.6 years. Serum autotaxin levels was median 1.6 mg/L. The mean autotaxin level was 1.08 mg/L in F0, 1.07 mg/L in F1, 0.95 mg/L in F2, 2.17 mg/L in F3, and 2.50 mg/L in F4; it was significantly higher in F4 than in F0-F2 (P<0.0024). For predicting cirrhosis (F4) and advanced liver fibrosis (≥F3), autotaxin had the almost same areas under the curve (AUCs 0.78 and 0.90, respectively) as well as M2BPGi. CONCLUSION Autotaxin levels could be used to evaluate the status of native liver fibrosis.
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Affiliation(s)
- Takehisa Ueno
- Department of Pediatric Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan.
| | - Chiyoshi Toyama
- Department of Pediatric Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Tomohisa Yoneyama
- Department of Pediatric Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Koichi Deguchi
- Department of Pediatric Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Motonari Nomura
- Department of Pediatric Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Ryuta Saka
- Department of Pediatric Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Miho Watanabe
- Department of Pediatric Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Yuko Tazuke
- Department of Pediatric Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Kazuhiko Bessho
- Department of Pediatrics, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Hiroomi Okuyama
- Department of Pediatric Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan
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Desale SE, Chidambaram H, Chinnathambi S. G-protein coupled receptor, PI3K and Rho signaling pathways regulate the cascades of Tau and amyloid-β in Alzheimer's disease. MOLECULAR BIOMEDICINE 2021; 2:17. [PMID: 35006431 PMCID: PMC8607389 DOI: 10.1186/s43556-021-00036-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Accepted: 03/18/2021] [Indexed: 12/16/2022] Open
Abstract
Alzheimer's disease is a progressive neurodegenerative disease characterized by the presence of amyloid-β plaques in the extracellular environment and aggregates of Tau protein that forms neurofibrillary tangles (NFTs) in neuronal cells. Along with these pathological proteins, the disease shows neuroinflammation, neuronal death, impairment in the immune function of microglia and synaptic loss, which are mediated by several important signaling pathways. The PI3K/Akt-mediated survival-signaling pathway is activated by many receptors such as G-protein coupled receptors (GPCRs), triggering receptor expressed on myeloid cells 2 (TREM2), and lysophosphatidic acid (LPA) receptor. The signaling pathway not only increases the survival of neurons but also regulates inflammation, phagocytosis, cellular protection, Tau phosphorylation and Aβ secretion as well. In this review, we focused on receptors, which activate PI3K/Akt pathway and its potential to treat Alzheimer's disease. Among several membrane receptors, GPCRs are the major drug targets for therapy, and GPCR signaling pathways are altered during Alzheimer's disease. Several GPCRs are involved in the pathogenic progression, phosphorylation of Tau protein by activation of various cellular kinases and are involved in the amyloidogenic pathway of amyloid-β synthesis. Apart from various GPCR signaling pathways, GPCR regulating/ interacting proteins are involved in the pathogenesis of Alzheimer's disease. These include several small GTPases, Ras homolog enriched in brain, GPCR associated sorting proteins, β-arrestins, etc., that play a critical role in disease progression and has been elaborated in this review.
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Affiliation(s)
- Smita Eknath Desale
- Neurobiology Group, Division of Biochemical Sciences, CSIR-National Chemical Laboratory (CSIR-NCL), Dr. Homi Bhabha Road, Pune, 411008 India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002 India
| | - Hariharakrishnan Chidambaram
- Neurobiology Group, Division of Biochemical Sciences, CSIR-National Chemical Laboratory (CSIR-NCL), Dr. Homi Bhabha Road, Pune, 411008 India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002 India
| | - Subashchandrabose Chinnathambi
- Neurobiology Group, Division of Biochemical Sciences, CSIR-National Chemical Laboratory (CSIR-NCL), Dr. Homi Bhabha Road, Pune, 411008 India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002 India
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Morris G, Berk M, Walder K, O'Neil A, Maes M, Puri BK. The lipid paradox in neuroprogressive disorders: Causes and consequences. Neurosci Biobehav Rev 2021; 128:35-57. [PMID: 34118292 DOI: 10.1016/j.neubiorev.2021.06.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 04/27/2021] [Accepted: 06/06/2021] [Indexed: 02/07/2023]
Abstract
Chronic systemic inflammation is associated with an increased risk of cardiovascular disease in an environment of low low-density lipoprotein (LDL) and low total cholesterol and with the pathophysiology of neuroprogressive disorders. The causes and consequences of this lipid paradox are explored. Circulating activated neutrophils can release inflammatory molecules such as myeloperoxidase and the pro-inflammatory cytokines interleukin-1 beta, interleukin-6 and tumour necrosis factor-alpha. Since activated neutrophils are associated with atherosclerosis and cardiovascular disease and with major depressive disorder, bipolar disorder and schizophrenia, it seems reasonable to hypothesise that the inflammatory molecules released by them may act as mediators of the link between systemic inflammation and the development of atherosclerosis in neuroprogressive disorders. This hypothesis is tested by considering the association at a molecular level of systemic inflammation with increased LDL oxidation; increased small dense LDL levels; increased lipoprotein (a) concentration; secretory phospholipase A2 activation; cytosolic phospholipase A2 activation; increased platelet activation; decreased apolipoprotein A1 levels and function; decreased paroxonase-1 activity; hyperhomocysteinaemia; and metabolic endotoxaemia. These molecular mechanisms suggest potential therapeutic targets.
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Affiliation(s)
- Gerwyn Morris
- Deakin University, IMPACT - the Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Barwon Health, Geelong, Australia
| | - Michael Berk
- Deakin University, IMPACT - the Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Barwon Health, Geelong, Australia; Deakin University, CMMR Strategic Research Centre, School of Medicine, Geelong, Victoria, Australia; Orygen, The National Centre of Excellence in Youth Mental Health, the Department of Psychiatry and the Florey Institute for Neuroscience and Mental Health, University of Melbourne, Parkville, Victoria, Australia
| | - Ken Walder
- Deakin University, IMPACT - the Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Barwon Health, Geelong, Australia
| | - Adrienne O'Neil
- Deakin University, IMPACT - the Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Barwon Health, Geelong, Australia
| | - Michael Maes
- Deakin University, IMPACT - the Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Barwon Health, Geelong, Australia; Department of Psychiatry, King Chulalongkorn University Hospital, Bangkok, Thailand
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Rosell-Valle C, Pedraza C, Manuel I, Moreno-Rodríguez M, Rodríguez-Puertas R, Castilla-Ortega E, Caramés JM, Gómez Conde AI, Zambrana-Infantes E, Ortega-Pinazo J, Serrano-Castro PJ, Chun J, Rodríguez De Fonseca F, Santín LJ, Estivill-Torrús G. Chronic central modulation of LPA/LPA receptors-signaling pathway in the mouse brain regulates cognition, emotion, and hippocampal neurogenesis. Prog Neuropsychopharmacol Biol Psychiatry 2021; 108:110156. [PMID: 33152386 DOI: 10.1016/j.pnpbp.2020.110156] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 10/25/2020] [Accepted: 10/27/2020] [Indexed: 02/05/2023]
Abstract
Several studies have demonstrated that lysophosphatidic acid (LPA) acts through its LPA receptors in multiple biological and behavioral processes, including adult hippocampal neurogenesis, hippocampal-dependent memory, and emotional regulation. However, analyses of the effects have typically involved acute treatments, and there is no information available regarding the effect of the chronic pharmacological modulation of the LPA/LPA receptors-signaling pathway. Thus, we analyzed the effect of the chronic (21 days) and continuous intracerebroventricular (ICV) infusion of C18:1 LPA and the LPA1-3 receptor antagonist Ki16425 in behavior and adult hippocampal neurogenesis. Twenty-one days after continuous ICV infusions, mouse behaviors in the open field test, Y-maze test and forced swimming test were assessed. In addition, the hippocampus was examined for c-Fos expression and α-CaMKII and phospho-α-CaMKII levels. The current study demonstrates that chronic C18:1 LPA produced antidepressant effects, improved spatial working memory, and enhanced adult hippocampal neurogenesis. In contrast, chronic LPA1-3 receptor antagonism disrupted exploratory activity and spatial working memory, induced anxiety and depression-like behaviors and produced an impairment of hippocampal neurogenesis. While these effects were accompanied by an increase in neuronal activation in the DG of C18:1 LPA-treated mice, Ki16425-treated mice showed reduced neuronal activation in CA3 and CA1 hippocampal subfields. Treatment with the antagonist also induced an imbalance in the expression of basal/activated α-CaMKII protein forms. These outcomes indicate that the chronic central modulation of the LPA receptors-signaling pathway in the brain regulates cognition and emotion, likely comprising hippocampal-dependent mechanisms. The use of pharmacological modulation of this pathway in the brain may potentially be targeted for the treatment of several neuropsychiatric conditions.
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Affiliation(s)
- Cristina Rosell-Valle
- Instituto de Investigación Biomédica de Málaga-IBIMA, Málaga, Spain; Unidad de Gestión Clínica de Neurociencias, Hospital Regional Universitario de Málaga, Málaga, Spain; Departamento de Psicobiología y Metodología de las Ciencias del Comportamiento, Universidad de Málaga, Málaga, Spain; Unidad de Producción de Reprogramación Celular, Red Andaluza para el diseño y traslación de Terapias Avanzadas, Junta de Andalucía, Spain
| | - Carmen Pedraza
- Instituto de Investigación Biomédica de Málaga-IBIMA, Málaga, Spain; Departamento de Psicobiología y Metodología de las Ciencias del Comportamiento, Universidad de Málaga, Málaga, Spain
| | - Iván Manuel
- Departamento de Farmacología, Facultad de Medicina y Enfermería, Universidad del País Vasco (UPV/EHU), Leioa, Spain
| | - Marta Moreno-Rodríguez
- Departamento de Farmacología, Facultad de Medicina y Enfermería, Universidad del País Vasco (UPV/EHU), Leioa, Spain
| | - Rafael Rodríguez-Puertas
- Departamento de Farmacología, Facultad de Medicina y Enfermería, Universidad del País Vasco (UPV/EHU), Leioa, Spain
| | - Estela Castilla-Ortega
- Instituto de Investigación Biomédica de Málaga-IBIMA, Málaga, Spain; Unidad de Gestión Clínica de Salud Mental, Hospital Regional Universitario de Málaga, Málaga, Spain
| | - José María Caramés
- Centre for Discovery Brain Sciences, Edinburgh Neuroscience, University of Edinburgh, Edinburgh, UK
| | - Ana I Gómez Conde
- Instituto de Investigación Biomédica de Málaga-IBIMA, Málaga, Spain; ECAI de Microscopía, Instituto de Investigación Biomédica de Málaga-IBIMA, Málaga, Spain
| | - Emma Zambrana-Infantes
- Instituto de Investigación Biomédica de Málaga-IBIMA, Málaga, Spain; Departamento de Psicobiología y Metodología de las Ciencias del Comportamiento, Universidad de Málaga, Málaga, Spain
| | - Jesús Ortega-Pinazo
- Instituto de Investigación Biomédica de Málaga-IBIMA, Málaga, Spain; Unidad de Gestión Clínica de Neurociencias, Hospital Regional Universitario de Málaga, Málaga, Spain
| | - Pedro J Serrano-Castro
- Instituto de Investigación Biomédica de Málaga-IBIMA, Málaga, Spain; Unidad de Gestión Clínica de Neurociencias, Hospital Regional Universitario de Málaga, Málaga, Spain
| | - Jerold Chun
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, California, USA
| | - Fernando Rodríguez De Fonseca
- Instituto de Investigación Biomédica de Málaga-IBIMA, Málaga, Spain; Unidad de Gestión Clínica de Salud Mental, Hospital Regional Universitario de Málaga, Málaga, Spain
| | - Luis J Santín
- Instituto de Investigación Biomédica de Málaga-IBIMA, Málaga, Spain; Departamento de Psicobiología y Metodología de las Ciencias del Comportamiento, Universidad de Málaga, Málaga, Spain.
| | - Guillermo Estivill-Torrús
- Instituto de Investigación Biomédica de Málaga-IBIMA, Málaga, Spain; Unidad de Gestión Clínica de Neurociencias, Hospital Regional Universitario de Málaga, Málaga, Spain.
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Non-coding RNAs and lipids mediate the function of extracellular vesicles in cancer cross-talk. Semin Cancer Biol 2021; 74:121-133. [PMID: 34033894 DOI: 10.1016/j.semcancer.2021.04.017] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 04/07/2021] [Accepted: 04/23/2021] [Indexed: 11/22/2022]
Abstract
Research on extracellular vesicles (EVs) has been expanded, especially in the field of cancer. The cargoes in EVs, especially those in small EVs such as exosomes include microRNAs (miRNAs), mRNA, proteins, and lipids, are assumed to work cooperatively in the tumor microenvironment. In 2007, it was reported that miRNAs were abundant among the non-coding RNAs present in exosomes. Since then, many studies have investigated the functions of miRNAs and have tried to apply these molecules to aid in the diagnosis of cancer. Accordingly, many reviews of non-coding RNAs in EVs have been published for miRNAs. This review focuses on relatively new cargoes, covering long noncoding (lnc) RNAs, circular RNAs, and repeat RNAs, among non-coding RNAs. These RNAs, regardless of EV or cell type, have newly emerged due to the innovation of sequencing technology. The poor conservation, low quantity, and technical difficulty in detecting these RNA types have made it difficult to elucidate their functions and expression patterns. We herein summarize a limited number of studies. Although lipids are major components of EVs, current research on EVs focuses on miRNA and protein biology, while the roles of lipids in exosomes have not drawn attention. However, several recent studies revealed that phospholipids, which are components of the EV membrane, play important roles in the intercommunication between cells and in the generation of lipid mediators. Here, we review the reported roles of these molecules, and describe their potential in cancer biology.
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Yemanyi F, Raghunathan V. Lysophosphatidic Acid and IL-6 Trans-signaling Interact via YAP/TAZ and STAT3 Signaling Pathways in Human Trabecular Meshwork Cells. Invest Ophthalmol Vis Sci 2021; 61:29. [PMID: 33216119 PMCID: PMC7683860 DOI: 10.1167/iovs.61.13.29] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Purpose Lysophosphatidic acid (LPA) and soluble interleukin-6 receptor (sIL6R) are elevated in primary open angle glaucoma (POAG). LPA and IL6 modulate in response to biomechanical stimuli and converge on similar fibrotic phenotypes. Thus, we determined whether LPA and IL6 trans-signaling (IL6/sIL6R) interact via Yes-associated protein (YAP)/Transcriptional coactivator with a PDZ-binding motif (TAZ) or Signal transducer and activator of transcription 3 (STAT3) pathways in human trabecular meshwork (hTM) cells. Methods Confluent primary hTM cells were serum starved for 24 hours, and treated with vehicle, LPA (20 µM), IL6 (100 ng/mL)/sIL6R (200 ng/mL), or both (LPA + IL6/sIL6R) for 24 hours, with or without a YAP inhibitor (verteporfin; 2 µM) or STAT3 inhibitor (2 µM). Expression of key receptors and ligands, signaling mediators, actomyosin machinery, cell contractility, and extracellular matrix (ECM) targets of both signaling pathways was determined by immunocytochemistry, RT-qPCR, and Western blotting. Results LPA and IL6 trans-signaling coupling overexpressed/activated receptors and ligands, glycoprotein-130, IL6, and autotaxin; signaling mediators, YAP, TAZ, Pan-TEAD, and phosphorylated STAT3 (pSTAT3); actomyosin and contractile machinery components, myosin light chain 2 (MLC2), phosphorylated MLC2, rho-associated protein kinase 1, filamentous actin, and α-smooth muscle actin; and fibrotic ECM proteins, collagen I and IV, fibronectin, laminin, cysteine-rich angiogenic inducer 61, and connective tissue growth factor in hTM cells; mostly beyond LPA or IL6 trans-signaling alone. Verteporfin inhibited YAP, TAZ, and pSTAT3, with concomitant abrogation of aforementioned fibrotic targets; the STAT3 inhibitor was only partially effective. Conclusions These data suggest synergistic crosstalk between LPA and IL6 trans-signaling, mediated by YAP, TAZ, and pSTAT3. By completely inhibiting these mediators, verteporfin may be more efficacious in ameliorating LPA and/or IL6 trans-signaling–induced ocular hypertensive phenotypes in hTM cells.
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Affiliation(s)
- Felix Yemanyi
- College of Optometry, University of Houston, Houston, Texas, United States
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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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Lysophosphatidic acid (LPA) as a modulator of plasma membrane Ca 2+-ATPase from basolateral membranes of kidney proximal tubules. J Physiol Biochem 2021; 77:321-329. [PMID: 33704695 DOI: 10.1007/s13105-021-00800-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Accepted: 02/15/2021] [Indexed: 01/10/2023]
Abstract
Lysophosphatidic acid (LPA) acts through the activation of G protein-coupled receptors, in a Ca2+-dependent manner. We show the effects of LPA on the plasma membrane Ca2+-ATPase (PMCA) from kidney proximal tubule cells. The Ca2+-ATPase activity was inhibited by nanomolar concentrations of LPA, with maximal inhibition (~50%) obtained with 20 nM LPA. This inhibitory action on PMCA activity was blocked by Ki16425, an antagonist for LPA receptors, indicating that this lipid acts via LPA1 and/or LPA3 receptor. This effect is PKC-dependent, since it is abolished by calphostin C and U73122, PKC, and PLC inhibitors, respectively. Furthermore, the addition of 10-8 M PMA, a well-known PKC activator, mimicked PMCA modulation by LPA. We also demonstrated that the PKC activation leads to an increase in PMCA phosphorylation. These results indicate that LPA triggers LPA1 and/or LPA3 receptors at the BLM, inducing PKC-dependent phosphorylation with further inhibition of PMCA. Thus, LPA is part of the regulatory lipid network present at the BLM and plays an important role in the regulation of intracellular Ca2+ concentration that may result in significant physiological alterations in other Ca2+-dependent events ascribed to the renal tissue.
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Iwama T, Kano K, Saigusa D, Ekroos K, van Echten-Deckert G, Vogt J, Aoki J. Development of an On-Tissue Derivatization Method for MALDI Mass Spectrometry Imaging of Bioactive Lipids Containing Phosphate Monoester Using Phos-tag. Anal Chem 2021; 93:3867-3875. [PMID: 33577289 DOI: 10.1021/acs.analchem.0c04479] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Matrix-assisted laser desorption ionization-mass spectrometry imaging (MALDI-MSI) is an emerging label-free method for mapping the distribution of diverse molecular species in tissue sections. Despite recent progress in MALDI-MSI analyses of lipids, it is still difficult to visualize minor bioactive lipids including lysophosphatidic acid (LPA) and sphingosine-1-phosphate (S1P). Here, we have developed a novel on-tissue derivatization method using Phos-tag, a zinc complex that specifically binds to a phosphate monoester group. MALDI-MSI with Phos-tag derivatization made it possible to image LPA and S1P in the murine brain. Furthermore, we were able to visualize other low-abundance lipids containing phosphate monoester, such as phosphatidic acid and ceramide-1-phosphate. Compared with conventional MALDI-MS, this derivatization produced LPA images with high spatial accuracy discriminating LPA artificially produced during MALDI-MS analysis. In mice with deficiencies in enzymes that degrade LPA and S1P, we observed marked S1P and/or LPA accumulation in specific regions of the brain. Thus, the present study provides a simple and optimal way to reveal the spatial localization of potent bioactive lipid phosphates such as LPA and S1P in tissues.
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Affiliation(s)
- Taiga Iwama
- Department of Health Chemistry, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo 113-8654, Japan.,Laboratory of Molecular and Cellular Biochemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai980-8577, Japan
| | - Kuniyuki Kano
- Department of Health Chemistry, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo 113-8654, Japan.,Laboratory of Molecular and Cellular Biochemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai980-8577, Japan.,AMED-LEAP, Tokyo100-0004, Japan
| | - Daisuke Saigusa
- AMED-LEAP, Tokyo100-0004, Japan.,Department of Integrative Genomics, Tohoku Medical Megabank Organization, Tohoku University, Sendai980-8577, Japan.,Medical Biochemistry, Tohoku University School of Medicine, Sendai 980-8575, Japan
| | - Kim Ekroos
- Lipidomics Consulting Ltd., 02230 Espoo, Finland
| | | | - Johannes Vogt
- Department of Molecular and Translational Neurosciences, University Medical Hospital, University of Cologne, 50923 Cologne, Germany
| | - Junken Aoki
- Department of Health Chemistry, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo 113-8654, Japan.,Laboratory of Molecular and Cellular Biochemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai980-8577, Japan.,AMED-LEAP, Tokyo100-0004, Japan
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