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de Haan LR, van Golen RF, Heger M. Molecular Pathways Governing the Termination of Liver Regeneration. Pharmacol Rev 2024; 76:500-558. [PMID: 38697856 DOI: 10.1124/pharmrev.123.000955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 01/24/2024] [Accepted: 02/08/2024] [Indexed: 05/05/2024] Open
Abstract
The liver has the unique capacity to regenerate, and up to 70% of the liver can be removed without detrimental consequences to the organism. Liver regeneration is a complex process involving multiple signaling networks and organs. Liver regeneration proceeds through three phases: the initiation phase, the growth phase, and the termination phase. Termination of liver regeneration occurs when the liver reaches a liver-to-body weight that is required for homeostasis, the so-called "hepatostat." The initiation and growth phases have been the subject of many studies. The molecular pathways that govern the termination phase, however, remain to be fully elucidated. This review summarizes the pathways and molecules that signal the cessation of liver regrowth after partial hepatectomy and answers the question, "What factors drive the hepatostat?" SIGNIFICANCE STATEMENT: Unraveling the pathways underlying the cessation of liver regeneration enables the identification of druggable targets that will allow us to gain pharmacological control over liver regeneration. For these purposes, it would be useful to understand why the regenerative capacity of the liver is hampered under certain pathological circumstances so as to artificially modulate the regenerative processes (e.g., by blocking the cessation pathways) to improve clinical outcomes and safeguard the patient's life.
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Affiliation(s)
- Lianne R de Haan
- Jiaxing Key Laboratory for Photonanomedicine and Experimental Therapeutics, Department of Pharmaceutics, College of Medicine, Jiaxing University, Jiaxing, China (L.R.d.H., M.H.); Department of Internal Medicine, Noordwest Ziekenhuisgroep, Alkmaar, The Netherlands (L.R.d.H.); Department of Gastroenterology and Hepatology, Leiden University Medical Center, Leiden, The Netherlands (R.F.v.G.); Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands (M.H.); and Membrane Biochemistry and Biophysics, Department of Chemistry, Faculty of Science, Utrecht University, Utrecht, The Netherlands (M.H.)
| | - Rowan F van Golen
- Jiaxing Key Laboratory for Photonanomedicine and Experimental Therapeutics, Department of Pharmaceutics, College of Medicine, Jiaxing University, Jiaxing, China (L.R.d.H., M.H.); Department of Internal Medicine, Noordwest Ziekenhuisgroep, Alkmaar, The Netherlands (L.R.d.H.); Department of Gastroenterology and Hepatology, Leiden University Medical Center, Leiden, The Netherlands (R.F.v.G.); Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands (M.H.); and Membrane Biochemistry and Biophysics, Department of Chemistry, Faculty of Science, Utrecht University, Utrecht, The Netherlands (M.H.)
| | - Michal Heger
- Jiaxing Key Laboratory for Photonanomedicine and Experimental Therapeutics, Department of Pharmaceutics, College of Medicine, Jiaxing University, Jiaxing, China (L.R.d.H., M.H.); Department of Internal Medicine, Noordwest Ziekenhuisgroep, Alkmaar, The Netherlands (L.R.d.H.); Department of Gastroenterology and Hepatology, Leiden University Medical Center, Leiden, The Netherlands (R.F.v.G.); Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands (M.H.); and Membrane Biochemistry and Biophysics, Department of Chemistry, Faculty of Science, Utrecht University, Utrecht, The Netherlands (M.H.)
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2
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Han W, Shi D, Yang Q, Li X, Zhang J, Peng C, Yan F. Alteration of chromosome structure impacts gene expressions implicated in pancreatic ductal adenocarcinoma cells. BMC Genomics 2024; 25:206. [PMID: 38395755 PMCID: PMC10885383 DOI: 10.1186/s12864-024-10109-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Accepted: 02/09/2024] [Indexed: 02/25/2024] Open
Abstract
BACKGROUND Pancreatic ductal adenocarcinoma (PDAC) is a lethal malignancy with a five-year survival rate of approximately 10%. Genetic mutations are pivotal drivers in PDAC pathogenesis, but recent investigations also revealed the involvement of non-genetic alterations in the disease development. In this study, we undertook a multi-omics approach, encompassing ATAC-seq, RNA-seq, ChIP-seq, and Hi-C methodologies, to dissect gene expression alterations arising from changes in chromosome accessibility and chromatin three-dimensional interactions in PDAC. RESULTS Our findings indicate that chromosomal structural alterations can lead to abnormal expressions on key genes during PDAC development. Notably, overexpression of oncogenes FGFR2, FOXA2, CYP2R1, and CPOX can be attributed to the augmentation of promoter accessibility, coupled with long-range interactions with distal elements. Additionally, our findings indicate that chromosomal structural alterations caused by genomic instability can lead to abnormal expressions in PDACs. As an example, by analyzing chromosomal changes, we identified a putative oncogenic gene, LPAR1, which shows upregulated expression in both PDAC cell lines and clinical samples. The overexpression is correlated with alterations in LPAR1-associated 3D genome structure and chromatin state. We further demonstrated that high LPAR1 activity is required for enhanced PDAC cell migration in vitro. CONCLUSIONS Collectively, our findings reveal that the chromosomal conformational alterations, in addition to the well-known genetic mutations, are critical for PDAC tumorigenesis.
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Affiliation(s)
- Wenrui Han
- Yunnan Key Laboratory of Cell Metabolism and Diseases, Center for Life Sciences, School of Life Sciences, State Key Laboratory of Conservation and Utilization of Bio- resources in Yunnan, Yunnan University, 650500, Kunming, China
| | - Detong Shi
- Yunnan Key Laboratory of Cell Metabolism and Diseases, Center for Life Sciences, School of Life Sciences, State Key Laboratory of Conservation and Utilization of Bio- resources in Yunnan, Yunnan University, 650500, Kunming, China
| | - Qiu Yang
- Yunnan Key Laboratory of Cell Metabolism and Diseases, Center for Life Sciences, School of Life Sciences, State Key Laboratory of Conservation and Utilization of Bio- resources in Yunnan, Yunnan University, 650500, Kunming, China
| | - Xinxin Li
- Yunnan Key Laboratory of Cell Metabolism and Diseases, Center for Life Sciences, School of Life Sciences, State Key Laboratory of Conservation and Utilization of Bio- resources in Yunnan, Yunnan University, 650500, Kunming, China
| | - Jian Zhang
- Yunnan Key Laboratory of Cell Metabolism and Diseases, Center for Life Sciences, School of Life Sciences, State Key Laboratory of Conservation and Utilization of Bio- resources in Yunnan, Yunnan University, 650500, Kunming, China
- Southeast United Graduate School, 650500, Kunming, China
| | - Cheng Peng
- Yunnan Key Laboratory of Cell Metabolism and Diseases, Center for Life Sciences, School of Life Sciences, State Key Laboratory of Conservation and Utilization of Bio- resources in Yunnan, Yunnan University, 650500, Kunming, China.
| | - Fang Yan
- Yunnan Key Laboratory of Cell Metabolism and Diseases, Center for Life Sciences, School of Life Sciences, State Key Laboratory of Conservation and Utilization of Bio- resources in Yunnan, Yunnan University, 650500, Kunming, China.
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Lescop C, Brotschi C, Williams JT, Sager CP, Birker M, Morrison K, Froidevaux S, Delahaye S, Nayler O, Bolli MH. Discovery of a Novel Orally Active, Selective LPA Receptor Type 1 Antagonist, 4-(4-(2-Isopropylphenyl)-4-((2-methoxy-4-methylphenyl)carbamoyl)piperidin-1-yl)-4-oxobutanoic Acid, with a Distinct Molecular Scaffold. J Med Chem 2024; 67:2379-2396. [PMID: 38349223 DOI: 10.1021/acs.jmedchem.3c01826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2024]
Abstract
Lysophosphatidic acid receptor 1 (LPAR1) antagonists show promise as potentially novel antifibrotic treatments. In a human LPAR1 β-arrestin recruitment-based high-throughput screening campaign, we identified urea 19 as a hit with a LPAR1 IC50 value of 5.0 μM. Hit-to-lead activities revealed that one of the urea nitrogen atoms can be replaced by carbon and establish the corresponding phenylacetic amide as a lead structure for further optimization. Medicinal chemistry efforts led to the discovery of piperidine 18 as a potent and selective LPAR1 antagonist with oral activity in a mouse model of LPA-induced skin vascular leakage. The molecular scaffold of 18 shares no obvious structural similarity with any other LPAR1 antagonist disclosed so far.
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Affiliation(s)
- Cyrille Lescop
- DD Chemistry, Idorsia Pharmaceuticals, Ltd, Hegenheimermattweg 91, CH-4123 Allschwil, Switzerland
| | - Christine Brotschi
- DD Chemistry, Idorsia Pharmaceuticals, Ltd, Hegenheimermattweg 91, CH-4123 Allschwil, Switzerland
| | - Jodi T Williams
- DD Chemistry, Idorsia Pharmaceuticals, Ltd, Hegenheimermattweg 91, CH-4123 Allschwil, Switzerland
| | - Christoph P Sager
- DD Chemistry, Idorsia Pharmaceuticals, Ltd, Hegenheimermattweg 91, CH-4123 Allschwil, Switzerland
| | - Magdalena Birker
- DD Biology, Idorsia Pharmaceuticals, Ltd, Hegenheimermattweg 91, CH-4123 Allschwil, Switzerland
| | - Keith Morrison
- DD Pharmacology, Idorsia Pharmaceuticals, Ltd, Hegenheimermattweg 91, CH-4123 Allschwil, Switzerland
| | - Sylvie Froidevaux
- DD Pharmacology, Idorsia Pharmaceuticals, Ltd, Hegenheimermattweg 91, CH-4123 Allschwil, Switzerland
| | - Stéphane Delahaye
- Preclinical DMPK, Idorsia Pharmaceuticals, Ltd, Hegenheimermattweg 91, CH-4123 Allschwil, Switzerland
| | - Oliver Nayler
- DD Biology, Idorsia Pharmaceuticals, Ltd, Hegenheimermattweg 91, CH-4123 Allschwil, Switzerland
| | - Martin H Bolli
- DD Chemistry, Idorsia Pharmaceuticals, Ltd, Hegenheimermattweg 91, CH-4123 Allschwil, Switzerland
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4
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Kajitani N, Okada-Tsuchioka M, Inoue A, Miyano K, Masuda T, Boku S, Iwamoto K, Ohtsuki S, Uezono Y, Aoki J, Takebayashi M. G protein-biased LPAR1 agonism of prototypic antidepressants: Implication in the identification of novel therapeutic target for depression. Neuropsychopharmacology 2024; 49:561-572. [PMID: 37673966 PMCID: PMC10789764 DOI: 10.1038/s41386-023-01727-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 08/01/2023] [Accepted: 08/24/2023] [Indexed: 09/08/2023]
Abstract
Prototypic antidepressants, such as tricyclic/tetracyclic antidepressants (TCAs), have multiple pharmacological properties and have been considered to be more effective than newer antidepressants, such as selective serotonin reuptake inhibitors, in treating severe depression. However, the clinical contribution of non-monoaminergic effects of TCAs remains elusive. In this study, we discovered that amitriptyline, a typical TCA, directly binds to the lysophosphatidic acid receptor 1 (LPAR1), a G protein-coupled receptor, and activates downstream G protein signaling, while exerting a little effect on β-arrestin recruitment. This suggests that amitriptyline acts as a G protein-biased agonist of LPAR1. This biased agonism was specific to TCAs and was not observed with other antidepressants. LPAR1 was found to be involved in the behavioral effects of amitriptyline. Notably, long-term infusion of mouse hippocampus with the potent G protein-biased LPAR agonist OMPT, but not the non-biased agonist LPA, induced antidepressant-like behavior, indicating that G protein-biased agonism might be necessary for the antidepressant-like effects. Furthermore, RNA-seq analysis revealed that LPA and OMPT have opposite patterns of gene expression changes in the hippocampus. Pathway analysis indicated that long-term treatment with OMPT activated LPAR1 downstream signaling (Rho and MAPK), whereas LPA suppressed LPAR1 signaling. Our findings provide insights into the mechanisms underlying the non-monoaminergic antidepressant effects of TCAs and identify the G protein-biased agonism of LPAR1 as a promising target for the development of novel antidepressants.
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Affiliation(s)
- Naoto Kajitani
- Department of Neuropsychiatry, Faculty of Life Sciences, Kumamoto University, Kumamoto, 860-8556, Japan
- Center for Metabolic Regulation of Healthy Aging, Faculty of Life Sciences, Kumamoto University, Kumamoto, 860-8556, Japan
- Division of Psychiatry and Neuroscience, Institute for Clinical Research, National Hospital Organization Kure Medical Center and Chugoku Cancer Center, Kure, 737-0023, Japan
| | - Mami Okada-Tsuchioka
- Division of Psychiatry and Neuroscience, Institute for Clinical Research, National Hospital Organization Kure Medical Center and Chugoku Cancer Center, Kure, 737-0023, Japan
| | - Asuka Inoue
- Laboratory of Molecular and Cellular Biochemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai, 980-8578, Japan
| | - Kanako Miyano
- Department of Pain Control Research, The Jikei University School of Medicine, Tokyo, 105-8461, Japan
- Division of Cancer Pathophysiology, National Cancer Center Research Institute, Tokyo, 104-0045, Japan
| | - Takeshi Masuda
- Department of Pharmaceutical Microbiology, Faculty of Life Sciences, Kumamoto University, Kumamoto, 862-0973, Japan
| | - Shuken Boku
- Department of Neuropsychiatry, Faculty of Life Sciences, Kumamoto University, Kumamoto, 860-8556, Japan
| | - Kazuya Iwamoto
- Department of Molecular Brain Science, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, 860-8556, Japan
| | - Sumio Ohtsuki
- Department of Pharmaceutical Microbiology, Faculty of Life Sciences, Kumamoto University, Kumamoto, 862-0973, Japan
| | - Yasuhito Uezono
- Department of Pain Control Research, The Jikei University School of Medicine, Tokyo, 105-8461, Japan
| | - Junken Aoki
- Department of Health Chemistry, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, 113-0033, Japan
| | - Minoru Takebayashi
- Department of Neuropsychiatry, Faculty of Life Sciences, Kumamoto University, Kumamoto, 860-8556, Japan.
- Division of Psychiatry and Neuroscience, Institute for Clinical Research, National Hospital Organization Kure Medical Center and Chugoku Cancer Center, Kure, 737-0023, Japan.
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5
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Chen YJ, Ferdousi F, Bejaoui M, Sasaki K, Isoda H. Microarray meta-analysis reveals comprehensive effects of 3,4,5-tricaffeolyquinic acid in cell differentiation and signaling. Eur J Pharmacol 2023; 960:176143. [PMID: 37866748 DOI: 10.1016/j.ejphar.2023.176143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 10/14/2023] [Accepted: 10/19/2023] [Indexed: 10/24/2023]
Abstract
Caffeoylquinic acids (CQA) are polyphenolic compounds found in fruits, vegetables, coffee, and spices that have exhibited several beneficial activities, including antioxidant, antibacterial, neuroprotective, anti-inflammatory, anticancer, antiviral, antidiabetic, and cardiovascular effects. A derivative, TCQA (3,4,5-Tri-O-caffeoylquinic acid), has also shown both neurogenic and pigment differentiation potential. A transcriptomic-based meta-analysis was conducted to explore potential biochemical processes and molecular targets of TCQA. This approach involved integrating data from various cell and tissue types, including human amniotic stem cells, human neural stem cells, human dermal papilla cells, and the brain cortex of aging model mice. It offered a comprehensive perspective on the significant gene regulations in response to TCQA treatment. The objective was to uncover the mechanism and novel targets of TCQA, facilitating a further understanding of its functions. New areas of interest found were TCQA's effect on adipogenesis, heart, and muscle tissue development. In addition, significantly enhanced biological activities found through meta-analysis included cell cycle, VEGFA-VEGFR2 pathway, and BMP signaling. Overall, a comprehensive functional and visual analysis using available biological databases uncovered the multi-target potential of this natural compound.
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Affiliation(s)
- Yu Jia Chen
- Tsukuba Life Science Innovation Program (T-LSI), Graduate School of Science and Technology, University of Tsukuba, Tsukuba, Ibaraki, 305-8572, Japan; Open Innovation Laboratory for Food and Medicinal Resource Engineering (FoodMed-OIL), National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, 305-8577, Japan
| | - Farhana Ferdousi
- Tsukuba Life Science Innovation Program (T-LSI), Graduate School of Science and Technology, University of Tsukuba, Tsukuba, Ibaraki, 305-8572, Japan; Institute of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Ibaraki, 305-8575, Japan; Alliance for Research on the Mediterranean and North Africa (ARENA), University of Tsukuba, Tsukuba, Ibaraki, 305-8572, Japan
| | - Meriem Bejaoui
- Open Innovation Laboratory for Food and Medicinal Resource Engineering (FoodMed-OIL), National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, 305-8577, Japan; Alliance for Research on the Mediterranean and North Africa (ARENA), University of Tsukuba, Tsukuba, Ibaraki, 305-8572, Japan
| | - Kazunori Sasaki
- Open Innovation Laboratory for Food and Medicinal Resource Engineering (FoodMed-OIL), National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, 305-8577, Japan; Alliance for Research on the Mediterranean and North Africa (ARENA), University of Tsukuba, Tsukuba, Ibaraki, 305-8572, Japan
| | - Hiroko Isoda
- Tsukuba Life Science Innovation Program (T-LSI), Graduate School of Science and Technology, University of Tsukuba, Tsukuba, Ibaraki, 305-8572, Japan; Open Innovation Laboratory for Food and Medicinal Resource Engineering (FoodMed-OIL), National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, 305-8577, Japan; Institute of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Ibaraki, 305-8575, Japan; Alliance for Research on the Mediterranean and North Africa (ARENA), University of Tsukuba, Tsukuba, Ibaraki, 305-8572, Japan.
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6
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Kobayashi Y, Uneuchi F, Naruse T, Matsuda D, Okumura-Kitajima L, Kajiyama H, Wada R, Yonemoto Y, Nakano K, Toki H, Kamigaso S, Yamagishi J, Tokura S, Kakinuma H, Kuroda S. Lead generation from N-[benzyl(4-phenylbutyl)carbamoyl]amino acid as a novel LPA 1 antagonist for the treatment of systemic sclerosis. Eur J Med Chem 2023; 260:115749. [PMID: 37639822 DOI: 10.1016/j.ejmech.2023.115749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 08/15/2023] [Accepted: 08/18/2023] [Indexed: 08/31/2023]
Abstract
Lysophosphatidic acid (LPA), a bioactive phospholipid, binds to the G protein-coupled LPA1 receptor on the surfaces of immune cells, to promote progression of fibrosis of the skin and organs through inducing infiltration of immune cells into tissues, chemokine production, inflammatory cytokine production, and fibroblast transformation. Anti-fibrotic effects of LPA1 blockade have been reported in animal models of scleroderma and scleroderma patients. In the study reported herein, we identified the novel urea compound 5 as a hit compound with LPA1 antagonist activity from our in-house library and synthesized the lead compound TP0541640 (18) by structural transformation utilizing a structure-based drug design (SBDD) approach. Compound 18 possessed potent in vitro LPA1 antagonist activity and exhibited a dose-dependent inhibitory effect against LPA-induced histamine release in mice. Furthermore, 18 significantly suppressed collagen production and skin thickening in a mouse model of bleomycin-induced skin fibrosis. Herein, we describe the compound design strategies and in vivo studies in greater detail.
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Affiliation(s)
- Yuki Kobayashi
- Taisho Pharmaceutical Co., Ltd., 1-403, Kita-Ku, Saitama, 331-9530, Japan
| | - Fumito Uneuchi
- Taisho Pharmaceutical Co., Ltd., 1-403, Kita-Ku, Saitama, 331-9530, Japan
| | - Takumi Naruse
- Taisho Pharmaceutical Co., Ltd., 1-403, Kita-Ku, Saitama, 331-9530, Japan
| | - Daisuke Matsuda
- Taisho Pharmaceutical Co., Ltd., 1-403, Kita-Ku, Saitama, 331-9530, Japan
| | | | - Hiromitsu Kajiyama
- Taisho Pharmaceutical Co., Ltd., 1-403, Kita-Ku, Saitama, 331-9530, Japan
| | - Reiko Wada
- Taisho Pharmaceutical Co., Ltd., 1-403, Kita-Ku, Saitama, 331-9530, Japan
| | - Yuki Yonemoto
- Taisho Pharmaceutical Co., Ltd., 1-403, Kita-Ku, Saitama, 331-9530, Japan
| | - Koichiro Nakano
- Taisho Pharmaceutical Co., Ltd., 1-403, Kita-Ku, Saitama, 331-9530, Japan
| | - Hidetoh Toki
- Taisho Pharmaceutical Co., Ltd., 1-403, Kita-Ku, Saitama, 331-9530, Japan
| | - Shunsuke Kamigaso
- Taisho Pharmaceutical Co., Ltd., 1-403, Kita-Ku, Saitama, 331-9530, Japan
| | - Jyunya Yamagishi
- Taisho Pharmaceutical Co., Ltd., 1-403, Kita-Ku, Saitama, 331-9530, Japan
| | - Seiken Tokura
- Taisho Pharmaceutical Co., Ltd., 1-403, Kita-Ku, Saitama, 331-9530, Japan
| | - Hiroyuki Kakinuma
- Taisho Pharmaceutical Co., Ltd., 1-403, Kita-Ku, Saitama, 331-9530, Japan.
| | - Shoichi Kuroda
- Taisho Pharmaceutical Co., Ltd., 1-403, Kita-Ku, Saitama, 331-9530, Japan
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7
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Ruzza C, Argentieri M, Ferrari F, Armani E, Trevisani M, Marchini G, Calo’ G. In vitro pharmacological characterization of standard and new lysophosphatidic acid receptor antagonists using dynamic mass redistribution assay. Front Pharmacol 2023; 14:1267414. [PMID: 38035009 PMCID: PMC10682101 DOI: 10.3389/fphar.2023.1267414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Accepted: 10/23/2023] [Indexed: 12/02/2023] Open
Abstract
Lysophosphatidic acid (LPA) is a bioactive phospholipid that acts as an agonist of six G protein-coupled receptors named LPA receptors (LPA1-6). LPA elicits diverse intracellular events and modulates several biological functions, including cell proliferation, migration, and invasion. Overactivation of the LPA-LPA receptor system is reported to be involved in several pathologies, including cancer, neuropathic pain, fibrotic diseases, atherosclerosis, and type 2 diabetes. Thus, LPA receptor modulators may be clinically relevant in numerous diseases, making the identification and pharmacodynamic characterization of new LPA receptor ligands of strong interest. In the present work, label-free dynamic mass redistribution (DMR) assay has been used to evaluate the pharmacological activity of some LPA1 and LPA2 standard antagonists at the recombinant human LPA1 and LPA2 receptors. These results are compared to those obtained in parallel experiments with the calcium mobilization assay. Additionally, the same experimental protocol has been used for the pharmacological characterization of the new compound CHI. KI 16425, RO 6842262, and BMS-986020 behaved as LPA1 inverse agonists in DMR experiments and as LPA1 antagonists in calcium mobilization assays. Amgen compound 35 behaved as an LPA2 antagonist, while Merck compound 20 from WO2012028243 was detected as an LPA2 inverse agonist using the DMR test. Of note, for all the compounds, similar potency values were estimated by DMR and calcium assay. The new compound CHI was found to be an LPA1 inverse agonist, but with potency lower than that of the standard compounds. In conclusion, we have demonstrated that DMR assay can be successfully used to characterize LPA1 and LPA2 ligands. Compared to the classical calcium mobilization assay, DMR offers some advantages, in particular allowing the identification of inverse agonists. Finally, in the frame of this study, a new LPA1 inverse agonist has been identified.
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Affiliation(s)
- C. Ruzza
- Department of Neuroscience and Rehabilitation, University of Ferrara, Ferrara, Italy
- LTTA Laboratory for Advanced Therapies, Technopole of Ferrara, Ferrara, Italy
| | - M. Argentieri
- Department of Neuroscience and Rehabilitation, University of Ferrara, Ferrara, Italy
| | - F. Ferrari
- Department of Neuroscience and Rehabilitation, University of Ferrara, Ferrara, Italy
| | - E. Armani
- Chiesi Farmaceutici SpA, Parma, Italy
| | | | | | - G. Calo’
- Department of Pharmaceutical and Pharmacological Sciences, University of Padua, Padua, Italy
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8
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Abdelmessih R, Xu J, Hung FR, Auguste DT. Integration of an LPAR1 Antagonist into Liposomes Enhances Their Internalization and Tumor Accumulation in an Animal Model of Human Metastatic Breast Cancer. Mol Pharm 2023; 20:5500-5514. [PMID: 37844135 PMCID: PMC10631474 DOI: 10.1021/acs.molpharmaceut.3c00348] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 09/29/2023] [Accepted: 10/02/2023] [Indexed: 10/18/2023]
Abstract
Lysophosphatidic acid receptor 1 (LPAR1) is elevated in breast cancer. The deregulation of LPAR1, including the function and level of expression, is linked to cancer initiation, progression, and metastasis. LPAR1 antagonists, AM095 or Ki16425, may be effective therapeutic molecules, yet their limited water solubility hinders in vivo delivery. In this study, we report on the synthesis of two liposomal formulations incorporating AM095 or Ki16425, embedded within the lipid bilayer, as targeted nanocarriers for metastatic breast cancer (MBC). The data show that the Ki16425 liposomal formulation exhibited a 50% increase in internalization by MBC mouse epithelial cells (4T1) and a 100% increase in tumor accumulation in a mouse model of MBC compared with that of a blank liposomal formulation (control). At the same time, normal mouse epithelial cells (EpH-4Ev) internalized the Ki16425 liposomal formulation 25% lesser than the control formulation. Molecular dynamics simulations show that the integration of AM095 or Ki16425 modified the physical and mechanical properties of the lipid bilayer, making it more flexible in these liposomal formulations compared with liposomes without drug. The incorporation of an LPAR1 antagonist within a liposomal drug delivery system represents a viable therapeutic approach for targeting the LPA-LPAR1 axis, which may hinder the progression of MBC.
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Affiliation(s)
- Rudolf
G. Abdelmessih
- Department of Chemical Engineering, Northeastern University, 360 Huntington Avenue, Boston, Massachusetts 02115, United States
| | - Jiaming Xu
- Department of Chemical Engineering, Northeastern University, 360 Huntington Avenue, Boston, Massachusetts 02115, United States
| | - Francisco R. Hung
- Department of Chemical Engineering, Northeastern University, 360 Huntington Avenue, Boston, Massachusetts 02115, United States
| | - Debra T. Auguste
- Department of Chemical Engineering, Northeastern University, 360 Huntington Avenue, Boston, Massachusetts 02115, United States
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9
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Nguyen LP, Khan RA, Kang S, Lee H, Hwang JI, Kim HR. Discovery of Chemical Scaffolds as Lysophosphatidic Acid Receptor 1 Antagonists: Virtual Screening, In Vitro Validation, and Molecular Dynamics Analysis. ACS Omega 2023; 8:40375-40386. [PMID: 37929144 PMCID: PMC10620911 DOI: 10.1021/acsomega.3c04798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Accepted: 10/06/2023] [Indexed: 11/07/2023]
Abstract
Lysophosphatidic acid receptor 1 (LPAR1) is an emerging therapeutic target for numerous human diseases including fibrosis. However, the limited number of available core structures of LPAR1 antagonists has prompted the need for novel chemical templates. In this study, we conducted a high-throughput virtual screening to discover potential new scaffolds. We tested three existing crystal structures alongside an AlphaFold model to evaluate their suitability in structure-based virtual screening, finding that the crystal structures show superior performance compared with the predictive model. Furthermore, we also found that enhancing the precision in the screening process did not necessarily improve the enrichment of hits. From the screening campaign, we identified five structures that were validated using an LPAR1-dependent calcium flux assay. To gain a deeper insight into the protein-ligand interaction, we extensively analyzed the binding modes of these compounds using in silico techniques, laying the groundwork for the discovery of novel LPAR1 antagonists.
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Affiliation(s)
- Lan Phuong Nguyen
- Department of Biomedical Sciences,
College of Medicine, Korea University, Seoul 02841, Republic of Korea
| | - Rasel Ahmed Khan
- Department of Biomedical Sciences,
College of Medicine, Korea University, Seoul 02841, Republic of Korea
| | - Soomin Kang
- Department of Biomedical Sciences,
College of Medicine, Korea University, Seoul 02841, Republic of Korea
| | - Hobin Lee
- Department of Biomedical Sciences,
College of Medicine, Korea University, Seoul 02841, Republic of Korea
| | - Jong-Ik Hwang
- Department of Biomedical Sciences,
College of Medicine, Korea University, Seoul 02841, Republic of Korea
| | - Hong-Rae Kim
- Department of Biomedical Sciences,
College of Medicine, Korea University, Seoul 02841, Republic of Korea
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10
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Liao HY, O’Flaherty C. Lysophosphatidic Acid Signalling Regulates Human Sperm Viability via the Phosphoinositide 3-Kinase/AKT Pathway. Cells 2023; 12:2196. [PMID: 37681929 PMCID: PMC10486690 DOI: 10.3390/cells12172196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 08/24/2023] [Accepted: 08/29/2023] [Indexed: 09/09/2023] Open
Abstract
Lysophosphatidic acid (LPA) signalling is essential for maintaining germ cell viability during mouse spermatogenesis; however, its role in human spermatozoa is unknown. We previously demonstrated that peroxiredoxin 6 (PRDX6) calcium-independent phospholipase A2 (iPLA2) releases lysophospholipids such as LPA or arachidonic acid (AA) and that inhibiting PRDX6 iPLA2 activity impairs sperm cell viability. The exogenous addition of LPA bypassed the inhibition of PRDX6 iPLA2 activity and maintained the active phosphoinositide 3-kinase (PI3K)/AKT pathway. Here, we aimed to study PI3K/AKT pathway regulation via LPA signalling and protein kinases in maintaining sperm viability. The localization of LPARs in human spermatozoa was determined using immunocytochemistry, and P-PI3K and P-AKT substrate phosphorylations via immunoblotting. Sperm viability was determined using the hypo-osmotic swelling test. LPAR1, 3, 5 and 6 were located on the sperm plasma membrane. The inhibition of LPAR1-3 with Ki16425 promoted the impairment of sperm viability and decreased the phosphorylation of PI3K AKT substrates. Inhibitors of PKC, receptor-type PTK and PLC impaired sperm viability and the PI3K/AKT pathway. Adding 1-oleoyl-2-acetyl-snglycerol (OAG), a cell-permeable analog of diacylglycerol (DAG), prevented the loss of sperm viability and maintained the phosphorylation of PI3K. In conclusion, human sperm viability is supported by LPAR signalling and regulated by PLC, PKC and RT-PTK by maintaining phosphorylation levels of PI3K and AKT substrates.
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Affiliation(s)
- Hao-Yu Liao
- Department of Medicine, Experimental Medicine Division, Faculty of Medicine and Health Sciences, McGill University, Montreal, QC H3A 0G4, Canada
- Department of Surgery, Urology Division, Faculty of Medicine and Health Sciences, McGill University, Montreal, QC H3A 0G4, Canada
- The Research Institute, McGill University Health Centre, Montreal, QC H4A 3J1, Canada
| | - Cristian O’Flaherty
- Department of Medicine, Experimental Medicine Division, Faculty of Medicine and Health Sciences, McGill University, Montreal, QC H3A 0G4, Canada
- Department of Surgery, Urology Division, Faculty of Medicine and Health Sciences, McGill University, Montreal, QC H3A 0G4, Canada
- The Research Institute, McGill University Health Centre, Montreal, QC H4A 3J1, Canada
- Department of Anatomy and Cell Biology, Faculty of Medicine and Health Sciences, McGill University, Montreal, QC H3A 0G4, Canada
- Department of Pharmacology and Therapeutics, Faculty of Medicine and Health Sciences, McGill University, Montreal, QC H3A 0G4, Canada
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11
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Contreras O, Harvey RP. Single-cell transcriptome dynamics of the autotaxin-lysophosphatidic acid axis during muscle regeneration reveal proliferative effects in mesenchymal fibro-adipogenic progenitors. Front Cell Dev Biol 2023; 11:1017660. [PMID: 36910157 PMCID: PMC9996314 DOI: 10.3389/fcell.2023.1017660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Accepted: 02/08/2023] [Indexed: 02/25/2023] Open
Abstract
Lysophosphatidic acid is a growth factor-like bioactive phospholipid recognising LPA receptors and mediating signalling pathways that regulate embryonic development, wound healing, carcinogenesis, and fibrosis, via effects on cell migration, proliferation and differentiation. Extracellular LPA is generated from lysophospholipids by the secreted hydrolase-ectonucleotide pyrophosphatase/phosphodiesterase 2 (ENPP2; also, AUTOTAXIN/ATX) and metabolised by different membrane-bound phospholipid phosphatases (PLPPs). Here, we use public bulk and single-cell RNA sequencing datasets to explore the expression of Lpar 1-6, Enpp2, and Plpp genes under skeletal muscle homeostasis and regeneration conditions. We show that the skeletal muscle system dynamically expresses the Enpp2-Lpar-Plpp gene axis, with Lpar1 being the highest expressed member among LPARs. Lpar1 was expressed by mesenchymal fibro-adipogenic progenitors and tenocytes, whereas FAPs mainly expressed Enpp2. Clustering of FAPs identified populations representing distinct cell states with robust Lpar1 and Enpp2 transcriptome signatures in homeostatic cells expressing higher levels of markers Dpp4 and Hsd11b1. However, tissue injury induced transient repression of Lpar genes and Enpp2. The role of LPA in modulating the fate and differentiation of tissue-resident FAPs has not yet been explored. Ex vivo, LPAR1/3 and ENPP2 inhibition significantly decreased the cell-cycle activity of FAPs and impaired fibro-adipogenic differentiation, implicating LPA signalling in the modulation of the proliferative and differentiative fate of FAPs. Together, our results demonstrate the importance of the ENPP2-LPAR-PLPP axis in different muscle cell types and FAP lineage populations in homeostasis and injury, paving the way for further research on the role of this signalling pathway in skeletal muscle homeostasis and regeneration, and that of other organs and tissues, in vivo.
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Affiliation(s)
- Osvaldo Contreras
- Developmental and Regenerative Biology Division, Victor Chang Cardiac Research Institute, Darlinghurst, NSW, Australia.,School of Clinical Medicine, Faculty of Medicine & Health, University of New South Wales, UNSW Sydney, Sydney, NSW, Australia
| | - Richard P Harvey
- Developmental and Regenerative Biology Division, Victor Chang Cardiac Research Institute, Darlinghurst, NSW, Australia.,School of Clinical Medicine, Faculty of Medicine & Health, University of New South Wales, UNSW Sydney, Sydney, NSW, Australia.,School of Biotechnology and Biomolecular Science, University of New South Wales, UNSW Sydney, Sydney, NSW, Australia
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12
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Lim HK, Kim K, Son YK, Nah SY, Ahn SM, Song M. Gintonin stimulates dendritic growth in striatal neurons by activating Akt and CREB. Front Mol Neurosci 2022; 15:1014497. [PMID: 36385759 PMCID: PMC9643712 DOI: 10.3389/fnmol.2022.1014497] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 10/04/2022] [Indexed: 09/26/2023] Open
Abstract
Gintonin, a glycolipid protein conjugated with lysophosphatidic acid (LPA), is a newly identified compound extracted from Korean ginseng. LPA receptor isotypes exhibit high affinity for gintonin and mediate intracellular calcium signaling in various animal cell models. In this study, we found that gintonin induced the activation of Akt and cAMP-response element binding protein (CREB) in mouse striatal neurons, and chronic treatment with gintonin potently induced dendritic growth and filopodia formation. Gintonin-induced Akt/CREB activation and dendritic development were significantly impaired by LPA receptor (LPAR1/3) inhibition with Ki16425. Intriguingly, prolonged treatment with gintonin ameliorated the reduction in dendritic formation caused by Shank3 and Slitrk5 deficiency in the striatal neurons. In addition, gintonin and brain-derived neurotrophic factor (BDNF) had a synergistic effect on AKT/CREB activation and dendritic growth at suboptimal concentrations. These findings imply that gintonin-stimulated LPA receptors play a role in dendritic growth in striatal neurons and that they may act synergistically with BDNF, which is known to play a role in dendritogenesis.
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Affiliation(s)
- Hye Kyung Lim
- Department of Life Sciences, Yeungnam University, Gyeongsan, South Korea
| | - Kitaek Kim
- Department of Life Sciences, Yeungnam University, Gyeongsan, South Korea
| | - Youn Kyoung Son
- National Institute of Biological Resources, Incheon, South Korea
| | - Seung-Yeol Nah
- Ginsentology Research Laboratory and Department of Physiology, College of Veterinary Medicine, Konkuk University, Seoul, South Korea
| | - Soo Min Ahn
- Department of Pediatric Surgery, Metabolic and Bariatric Surgery Center, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, South Korea
| | - Minseok Song
- Department of Life Sciences, Yeungnam University, Gyeongsan, South Korea
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13
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Lee GH, Cheon J, Kim D, Jun HS. Lysophosphatidic Acid Promotes Epithelial-Mesenchymal Transition in Kidney Epithelial Cells via the LPAR1/MAPK-AKT/KLF5 Signaling Pathway in Diabetic Nephropathy. Int J Mol Sci 2022; 23:ijms231810497. [PMID: 36142408 PMCID: PMC9500642 DOI: 10.3390/ijms231810497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Revised: 08/29/2022] [Accepted: 09/07/2022] [Indexed: 11/16/2022] Open
Abstract
The epithelial–mesenchymal transition (EMT) is a differentiation process associated with fibrogenesis in diabetic nephropathy (DN). Lysophosphatidic acid (LPA) is a small, naturally occurring glycerophospholipid implicated in the pathogenesis of DN. In this study, we investigated the role of LPA/LPAR1 signaling in the EMT of tubular cells as well as the underlying mechanisms. We observed a decrease in E-cadherin and an increase in vimentin expression levels in the kidney tubules of diabetic db/db mice, and treatment with ki16425 (LPAR1/3 inhibitor) inhibited the expression of these EMT markers. Ki16425 treatment also decreased the expression levels of the fibrotic factors fibronectin and alpha-smooth muscle actin (α-SMA) in db/db mice. Similarly, we found that LPA decreased E-cadherin expression and increased vimentin expression in HK-2 cells, which was reversed by treatment with ki16425 or AM095 (LPAR1 inhibitor). In addition, the expression levels of fibronectin and α-SMA were increased by LPA, and this effect was reversed by treatment with ki16425 and AM095 or by LPAR1 knockdown. Moreover, LPA induced the expression of the transcription factor, Krüppel-like factor 5 (KLF5), which was decreased by AM095 treatment or LPAR1 knockdown. The expression levels of EMT markers and fibrotic factors induced by LPA were decreased upon KLF5 knockdown in HK-2 cells. Inhibition of the extracellular signal-regulated kinase (ERK), c-Jun N-terminal kinase (JNK), and serine-threonine kinase (AKT) pathways decreased LPA-induced expression of KLF5 and EMT markers. In conclusion, these data suggest that LPA contributes to the pathogenesis of diabetic nephropathy by inducing EMT and renal tubular fibrosis via regulation of KLF5 through the LPAR1.
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Affiliation(s)
- Geon-Ho Lee
- College of Pharmacy, Gachon Institute of Pharmaceutical Sciences, Gachon University, Incheon 21936, Korea
| | - Jayeon Cheon
- College of Pharmacy, Gachon Institute of Pharmaceutical Sciences, Gachon University, Incheon 21936, Korea
| | - Donghee Kim
- Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon 21999, Korea
| | - Hee-Sook Jun
- College of Pharmacy, Gachon Institute of Pharmaceutical Sciences, Gachon University, Incheon 21936, Korea
- Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon 21999, Korea
- Gachon Medical Research Institute, Gil Hospital, Incheon 21565, Korea
- Correspondence: ; Tel.: +82-32-899-6056; Fax: +82-32-899-6057
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14
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Khiar-Fernández N, Zian D, Vázquez-Villa H, Martínez RF, Escobar-Peña A, Foronda-Sainz R, Ray M, Puigdomenech-Poch M, Cincilla G, Sánchez-Martínez M, Kihara Y, Chun J, López-Vales R, López-Rodríguez ML, Ortega-Gutiérrez S. Novel Antagonist of the Type 2 Lysophosphatidic Acid Receptor (LPA 2), UCM-14216, Ameliorates Spinal Cord Injury in Mice. J Med Chem 2022; 65:10956-10974. [PMID: 35948083 PMCID: PMC9421655 DOI: 10.1021/acs.jmedchem.2c00046] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
![]()
Spinal cord injuries (SCIs) irreversibly disrupt spinal
connectivity,
leading to permanent neurological disabilities. Current medical treatments
for reducing the secondary damage that follows the initial injury
are limited to surgical decompression and anti-inflammatory drugs,
so there is a pressing need for new therapeutic strategies. Inhibition
of the type 2 lysophosphatidic acid receptor (LPA2) has
recently emerged as a new potential pharmacological approach to decrease
SCI-associated damage. Toward validating this receptor as a target
in SCI, we have developed a new series of LPA2 antagonists,
among which compound 54 (UCM-14216) stands out as a potent
and selective LPA2 receptor antagonist (Emax = 90%, IC50 = 1.9 μM, KD = 1.3 nM; inactive at LPA1,3–6 receptors).
This compound shows efficacy in an in vivo mouse model of SCI in an
LPA2-dependent manner, confirming the potential of LPA2 inhibition for providing a new alternative for treating SCI.
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Affiliation(s)
- Nora Khiar-Fernández
- Departamento de Química Orgánica I, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Madrid E-28040, Spain
| | - Debora Zian
- Departamento de Química Orgánica I, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Madrid E-28040, Spain
| | - Henar Vázquez-Villa
- Departamento de Química Orgánica I, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Madrid E-28040, Spain
| | - R Fernando Martínez
- Departamento de Química Orgánica I, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Madrid E-28040, Spain
| | - Andrea Escobar-Peña
- Departamento de Química Orgánica I, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Madrid E-28040, Spain
| | - Román Foronda-Sainz
- Departamento de Química Orgánica I, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Madrid E-28040, Spain
| | - Manisha Ray
- Translational Neuroscience Initiative, Sanford Burnham Prebys Medical Discovery Institute, 10901 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Maria Puigdomenech-Poch
- Departament de Biologia Cel·lular, Fisiologia i Immunologia, Institut de Neurociències, Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Universitat Autònoma de Barcelona, Bellaterra, BarcelonaE-08193, Spain
| | - Giovanni Cincilla
- Molomics, Barcelona Science Park, Baldiri i Reixac 4-8, Barcelona E-08028, Spain
| | - Melchor Sánchez-Martínez
- Molomics, Barcelona Science Park, Baldiri i Reixac 4-8, Barcelona E-08028, Spain.,Burua Scientific, Sant Pere de Ribes E-08810, Spain
| | - Yasuyuki Kihara
- Translational Neuroscience Initiative, Sanford Burnham Prebys Medical Discovery Institute, 10901 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Jerold Chun
- Translational Neuroscience Initiative, Sanford Burnham Prebys Medical Discovery Institute, 10901 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Rubèn López-Vales
- Departament de Biologia Cel·lular, Fisiologia i Immunologia, Institut de Neurociències, Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Universitat Autònoma de Barcelona, Bellaterra, BarcelonaE-08193, Spain
| | - María L López-Rodríguez
- Departamento de Química Orgánica I, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Madrid E-28040, Spain
| | - Silvia Ortega-Gutiérrez
- Departamento de Química Orgánica I, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Madrid E-28040, Spain
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15
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Qiu H, Song E, Hu Y, Li T, Ku KC, Wang C, Cheung BMY, Cheong LY, Wang Q, Wu X, Hoo RLC, Wang Y, Xu A. Hepatocyte-Secreted Autotaxin Exacerbates Nonalcoholic Fatty Liver Disease Through Autocrine Inhibition of the PPARα/FGF21 Axis. Cell Mol Gastroenterol Hepatol 2022; 14:1003-23. [PMID: 35931383 DOI: 10.1016/j.jcmgh.2022.07.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 07/17/2022] [Accepted: 07/18/2022] [Indexed: 01/31/2023]
Abstract
BACKGROUND & AIMS The prevalence of nonalcoholic fatty liver disease (NAFLD) has reached epidemic proportions globally as a result of the rapid increase in obesity. However, there is no Food and Drug Administration-approved pharmacotherapy available for NAFLD. This study investigated the role of autotaxin, a secreted enzyme that hydrolyzes lysophosphatidylcholine to produce lysophosphatidic acid (LPA), in the pathogenesis of NAFLD and to explore whether genetic or pharmacologic interventions targeting autotaxin ameliorate NAFLD. METHODS The clinical association of autotaxin with the severity of NAFLD was analyzed in 125 liver biopsy-proven NAFLD patients. C57BL/6N mice or fibroblast growth factor 21 (FGF21)-null mice were fed a high-fat diet or a choline-deficient diet to investigate the role of the autotaxin-FGF21 axis in NAFLD development by hepatic knockdown and antibody neutralization. Huh7 cells were used to investigate the autocrine effects of autotaxin. RESULTS Serum autotaxin levels were associated positively with histologic scores and NAFLD severity. Hepatocytes, but not adipocytes, were the major contributor to increased circulating autotaxin in both patients and mouse models with NAFLD. In mice, knocking-down hepatic autotaxin or treatment with a neutralizing antibody against autotaxin significantly reduced high-fat diet-induced NAFLD and high fat- and choline-deficient diet-induced nonalcoholic steatohepatitis and fibrosis, accompanied by a marked increase of serum FGF21. Mechanistically, autotaxin inhibited the transcriptional activity of peroxisome proliferator-activated receptor α through LPA-induced activation of extracellular signal-regulated kinas, thereby leading to suppression of hepatic FGF21 production. The therapeutic benefit of anti-autotaxin neutralizing antibody against NAFLD was abrogated in FGF21-null mice. CONCLUSIONS Liver-secreted autotaxin acts in an autocrine manner to exacerbate NAFLD through LPA-induced suppression of the peroxisome proliferator-activated receptor α-FGF21 axis and is a promising therapeutic target for NAFLD.
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16
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Liang Z, Yun CC. Compensatory Upregulation of LPA 2 and Activation of the PI3K-Akt Pathway Prevent LPA 5-Dependent Loss of Intestinal Epithelial Cells in Intestinal Organoids. Cells 2022; 11:2243. [PMID: 35883686 PMCID: PMC9324510 DOI: 10.3390/cells11142243] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 07/11/2022] [Accepted: 07/16/2022] [Indexed: 02/05/2023] Open
Abstract
Renewal of the intestinal epithelium is orchestrated by regenerative epithelial proliferation within crypts. Recent studies have shown that lysophosphatidic acid (LPA) can maintain intestinal epithelial renewal in vitro and conditional deletion of Lpar5 (Lpar5iKO) in mice ablates the intestinal epithelium and increases morbidity. In contrast, constitutive Lpar5 deletion (Lpar5cKO) does not cause a defect in intestinal crypt regeneration. In this study, we investigated whether another LPA receptor (LPAR) compensates for constitutive loss of LPA5 function to allow regeneration of intestinal epithelium. In Lpar5cKO intestinal epithelial cells (IECs), Lpar2 was upregulated and blocking LPA2 function reduced proliferation and increased apoptosis of Lpar5cKO IECs. Similar to Lpar5cKO mice, the absence of Lpar2 (Lpar2-/-) resulted in upregulation of Lpar5 in IECs, indicating that LPA2 and LPA5 reciprocally compensate for the loss of each other. Blocking LPA2 in Lpar5cKO enteroids reduced phosphorylation of Akt, indicating that LPA2 maintains the growth of Lpar5cKO enteroids through activation of the PI3K-Akt pathway. The present study provides evidence that loss of an LPAR can be compensated by another LPAR. This ability to compensate needs to be considered in studies aimed to define receptor functions or test the efficacy of a LPAR-targeting drug using genetically engineered animal models.
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Affiliation(s)
- Zhongxing Liang
- Division of Digestive Diseases, Department of Medicine, Emory University School of Medicine, Atlanta, GA 30322, USA;
| | - C. Chris Yun
- Division of Digestive Diseases, Department of Medicine, Emory University School of Medicine, Atlanta, GA 30322, USA;
- Gastroenterology Research, Atlanta Veterans Administration Medical Center, Decatur, GA 30322, USA
- Winship Cancer Institute, Emory University School of Medicine, Atlanta, GA 30322, USA
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17
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Clark JM, Salgado-Polo F, Macdonald SJF, Barrett TN, Perrakis A, Jamieson C. Structure-Based Design of a Novel Class of Autotaxin Inhibitors Based on Endogenous Allosteric Modulators. J Med Chem 2022; 65:6338-6351. [PMID: 35440138 PMCID: PMC9059126 DOI: 10.1021/acs.jmedchem.2c00368] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Autotaxin (ATX) facilitates the hydrolysis of lysophosphatidylcholine to lysophosphatidic acid (LPA), a bioactive phospholipid, which facilitates a diverse range of cellular effects in multiple tissue types. Abnormal LPA expression can lead to the progression of diseases such as cancer and fibrosis. Previously, we identified a potent ATX steroid-derived hybrid (partially orthosteric and allosteric) inhibitor which did not form interactions with the catalytic site. Herein, we describe the design, synthesis, and biological evaluation of a focused library of novel steroid-derived analogues targeting the bimetallic catalytic site, representing an entirely unique class of ATX inhibitors of type V designation, which demonstrate significant pathway-relevant biochemical and phenotypic biological effects. The current compounds modulated LPA-mediated ATX allostery and achieved indirect blockage of LPA1 internalization, in line with the observed reduction in downstream signaling cascades and chemotaxis induction. These novel type V ATX inhibitors represent a promising tool to inactivate the ATX-LPA signaling axis.
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Affiliation(s)
- Jennifer M Clark
- Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow G1 1XL, United Kingdom
| | - Fernando Salgado-Polo
- Oncode Institute and Division of Biochemistry, Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, The Netherlands
| | - Simon J F Macdonald
- Medicines Design, GlaxoSmithKline R&D, Stevenage, Hertfordshire SG1 2NY, United Kingdom
| | - Tim N Barrett
- Medicines Design, GlaxoSmithKline R&D, Stevenage, Hertfordshire SG1 2NY, United Kingdom
| | - Anastassis Perrakis
- Oncode Institute and Division of Biochemistry, Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, The Netherlands
| | - Craig Jamieson
- Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow G1 1XL, United Kingdom
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18
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Hauck T, Kadam S, Heinz K, Garcia Peraza M, Schmid R, Kremer AE, Wolf K, Bauer A, Horch RE, Arkudas A, Kengelbach-Weigand A. Influence of the autotaxin-lysophosphatidic acid axis on cellular function and cytokine expression in different breast cancer cell lines. Sci Rep 2022; 12:5565. [PMID: 35365723 DOI: 10.1038/s41598-022-09565-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2022] [Accepted: 03/23/2022] [Indexed: 11/08/2022] Open
Abstract
Previous studies provide high evidence that autotaxin (ATX)-lysophosphatidic acid (LPA) signaling through LPA receptors (LPAR) plays an important role in breast cancer initiation, progression, and invasion. However, its specific role in different breast cancer cell lines remains to be fully elucidated to offer improvements in targeted therapies. Within this study, we analyzed in vitro the effect of LPA 18:1 and the LPAR1, LPAR3 (and LPAR2) inhibitor Ki16425 on cellular functions of different human breast cancer cell lines (MDA-MB-231, MDA-MB-468, MCF-7, BT-474, SKBR-3) and the human breast epithelial cell line MCF-10A, as well as Interleukin 8 (IL-8), Interleukin 6 (IL-6) and tumor necrosis factor (TNF)-alpha cytokine secretion after LPA-incubation. ATX-LPA signaling showed a dose-dependent stimulatory effect especially on cellular functions of triple-negative and luminal A breast cancer cell lines. Ki16425 inhibited the LPA-induced stimulation of triple-negative breast cancer and luminal A cell lines in variable intensity depending on the functional assay, indicating the interplay of different LPAR in those assays. IL-8, IL-6 and TNF-alpha secretion was induced by LPA in MDA-MB-468 cells. This study provides further evidence about the role of the ATX-LPA axis in different breast cancer cell lines and might contribute to identify subtypes suitable for a future targeted therapy of the ATX-LPA axis.
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19
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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] [What about the content of this article? (0)] [Affiliation(s)] [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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20
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Chen L, Yan G, Ohwada T. Building on endogenous lipid mediators to design synthetic receptor ligands. Eur J Med Chem 2022; 231:114154. [DOI: 10.1016/j.ejmech.2022.114154] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 01/17/2022] [Accepted: 01/22/2022] [Indexed: 01/05/2023]
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21
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She S, Zhang Q, Shi J, Yang F, Dai K. Roles of Autotaxin/Autotaxin-Lysophosphatidic Acid Axis in the Initiation and Progression of Liver Cancer. Front Oncol 2022; 12:922945. [PMID: 35769713 PMCID: PMC9236130 DOI: 10.3389/fonc.2022.922945] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Accepted: 05/13/2022] [Indexed: 02/05/2023] Open
Abstract
Autotaxin (ATX) is a secreted glycoprotein and catalyzes the hydrolysis of lysophosphatidylcholine to lysophosphatidic acid (LPA), a growth factor-like signaling phospholipid. ATX has been abundantly detected in the culture medium of various cancer cells, tumor tissues, and serum or plasma of cancer patients. Biological actions of ATX are mediated by LPA. The ATX-LPA axis mediates a plethora of activities, such as cell proliferation, survival, migration, angiogenesis, and inflammation, and participates in the regulation of various physiological and pathological processes. In this review, we have summarized the physiological function of ATX and the ATX-LPA axis in liver cancer, analyzed the role of the ATX-LPA axis in tumorigenesis and metastasis, and discussed the therapeutic strategies targeting the ATX-LPA axis, paving the way for new therapeutic developments.
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Affiliation(s)
| | | | | | - Fan Yang
- *Correspondence: Fan Yang, ; Kai Dai,
| | - Kai Dai
- *Correspondence: Fan Yang, ; Kai Dai,
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22
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Abstract
G-protein-coupled receptors (GPCRs) are the largest family of cell surface signaling receptors known to play a crucial role in various physiological functions, including tumor growth and metastasis. Various molecules such as hormones, lipids, peptides, and neurotransmitters activate GPCRs that enable the coupling of these receptors to highly specialized transducer proteins, called G-proteins, and initiate multiple signaling pathways. Integration of these intricate networks of signaling cascades leads to numerous biochemical responses involved in diverse pathophysiological activities, including cancer development. While several studies indicate the role of GPCRs in controlling various aspects of cancer progression such as tumor growth, invasion, migration, survival, and metastasis through its aberrant overexpression, mutations, or increased release of agonists, the explicit mechanisms of the involvement of GPCRs in cancer progression is still puzzling. This review provides an insight into the various responses mediated by GPCRs in the development of cancers, the molecular mechanisms involved and the novel pharmacological approaches currently preferred for the treatment of cancer. Thus, these findings extend the knowledge of GPCRs in cancer cells and help in the identification of therapeutics for cancer patients.
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23
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Gu Y, Chen Y, Wei L, Wu S, Shen K, Liu C, Dong Y, Zhao Y, Zhang Y, Zhang C, Zheng W, He J, Wang Y, Li Y, Zhao X, Wang H, Tan J, Wang L, Zhou Q, Xie G, Liang H, Ou J. ABHD5 inhibits YAP-induced c-Met overexpression and colon cancer cell stemness via suppressing YAP methylation. Nat Commun 2021; 12:6711. [PMID: 34795238 PMCID: PMC8602706 DOI: 10.1038/s41467-021-26967-5] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Accepted: 10/26/2021] [Indexed: 01/05/2023] Open
Abstract
Cancer stemness represents a major source of development and progression of colorectal cancer (CRC). c-Met critically contributes to CRC stemness, but how c-Met is activated in CRC remains elusive. We previously identified the lipolytic factor ABHD5 as an important tumour suppressor gene in CRC. Here, we show that loss of ABHD5 promotes c-Met activation to sustain CRC stemness in a non-canonical manner. Mechanistically, we demonstrate that ABHD5 interacts in the cytoplasm with the core subunit of the SET1A methyltransferase complex, DPY30, thereby inhibiting the nuclear translocation of DPY30 and activity of SET1A. In the absence of ABHD5, DPY30 translocates to the nucleus and supports SET1A-mediated methylation of YAP and histone H3, which sequesters YAP in the nucleus and increases chromatin accessibility to synergistically promote YAP-induced transcription of c-Met, thus promoting the stemness of CRC cells. This study reveals a novel role of ABHD5 in regulating histone/non-histone methylation and CRC stemness.
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Affiliation(s)
- Yan Gu
- Department of Oncology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University (Army Medical University), 400038, Chongqing, China
| | - Yanrong Chen
- Department of Oncology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University (Army Medical University), 400038, Chongqing, China
| | - Lai Wei
- Department of Oncology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University (Army Medical University), 400038, Chongqing, China
| | - Shuang Wu
- Department of Oncology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University (Army Medical University), 400038, Chongqing, China
| | - Kaicheng Shen
- Department of Oncology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University (Army Medical University), 400038, Chongqing, China
| | - Chengxiang Liu
- Department of Oncology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University (Army Medical University), 400038, Chongqing, China
| | - Yan Dong
- Department of Oncology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University (Army Medical University), 400038, Chongqing, China
| | - Yang Zhao
- Department of Oncology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University (Army Medical University), 400038, Chongqing, China
| | - Yue Zhang
- Department of Oncology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University (Army Medical University), 400038, Chongqing, China
| | - Chi Zhang
- Department of Oncology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University (Army Medical University), 400038, Chongqing, China
| | - Wenling Zheng
- Department of Oncology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University (Army Medical University), 400038, Chongqing, China
| | - Jiangyi He
- Department of Oncology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University (Army Medical University), 400038, Chongqing, China
| | - Yunlong Wang
- Department of Oncology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University (Army Medical University), 400038, Chongqing, China
| | - Yifei Li
- Department of Oncology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University (Army Medical University), 400038, Chongqing, China
| | - Xiaoxin Zhao
- Department of Oncology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University (Army Medical University), 400038, Chongqing, China
| | - Hongwei Wang
- Department of Oncology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University (Army Medical University), 400038, Chongqing, China
| | - Jun Tan
- Department of Oncology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University (Army Medical University), 400038, Chongqing, China
| | - Liting Wang
- Biomedical Analysis Center, Third Military Medical University (Army Medical University), 400038, Chongqing, China
| | - Qi Zhou
- Department of Oncology, Fuling Central Hospital of Chongqing City, 408000, Chongqing, China.
| | - Ganfeng Xie
- Department of Oncology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University (Army Medical University), 400038, Chongqing, China.
| | - Houjie Liang
- Department of Oncology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University (Army Medical University), 400038, Chongqing, China.
| | - Juanjuan Ou
- Department of Oncology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University (Army Medical University), 400038, Chongqing, China.
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24
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Cheng PTW, Kaltenbach RF, Zhang H, Shi J, Tao S, Li J, Kennedy LJ, Walker SJ, Shi Y, Wang Y, Dhanusu S, Reddigunta R, Kumaravel S, Jusuf S, Smith D, Krishnananthan S, Li J, Wang T, Heiry R, Sum CS, Kalinowski SS, Hung CP, Chu CH, Azzara AV, Ziegler M, Burns L, Zinker BA, Boehm S, Taylor J, Sapuppo J, Mosure K, Everlof G, Guarino V, Zhang L, Yang Y, Ruan Q, Xu C, Apedo A, Traeger SC, Cvijic ME, Lentz KA, Tirucherai G, Sivaraman L, Robl J, Ellsworth BA, Rosen G, Gordon DA, Soars MG, Gill M, Murphy BJ. Discovery of an Oxycyclohexyl Acid Lysophosphatidic Acid Receptor 1 (LPA 1) Antagonist BMS-986278 for the Treatment of Pulmonary Fibrotic Diseases. J Med Chem 2021; 64:15549-15581. [PMID: 34709814 DOI: 10.1021/acs.jmedchem.1c01256] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The oxycyclohexyl acid BMS-986278 (33) is a potent lysophosphatidic acid receptor 1 (LPA1) antagonist, with a human LPA1 Kb of 6.9 nM. The structure-activity relationship (SAR) studies starting from the LPA1 antagonist clinical compound BMS-986020 (1), which culminated in the discovery of 33, are discussed. The detailed in vitro and in vivo preclinical pharmacology profiles of 33, as well as its pharmacokinetics/metabolism profile, are described. On the basis of its in vivo efficacy in rodent chronic lung fibrosis models and excellent overall ADME (absorption, distribution, metabolism, excretion) properties in multiple preclinical species, 33 was advanced into clinical trials, including an ongoing Phase 2 clinical trial in patients with lung fibrosis (NCT04308681).
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Affiliation(s)
- Peter T W Cheng
- Fibrosis Chemistry, Small Molecule Drug Discovery, Research & Early Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543-4000, United States
| | - Robert F Kaltenbach
- Fibrosis Chemistry, Small Molecule Drug Discovery, Research & Early Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543-4000, United States
| | - Hao Zhang
- Fibrosis Chemistry, Small Molecule Drug Discovery, Research & Early Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543-4000, United States
| | - Jun Shi
- Fibrosis Chemistry, Small Molecule Drug Discovery, Research & Early Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543-4000, United States
| | - Shiwei Tao
- Fibrosis Chemistry, Small Molecule Drug Discovery, Research & Early Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543-4000, United States
| | - Jun Li
- Fibrosis Chemistry, Small Molecule Drug Discovery, Research & Early Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543-4000, United States
| | - Lawrence J Kennedy
- Fibrosis Chemistry, Small Molecule Drug Discovery, Research & Early Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543-4000, United States
| | - Steven J Walker
- Fibrosis Chemistry, Small Molecule Drug Discovery, Research & Early Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543-4000, United States
| | - Yan Shi
- Fibrosis Chemistry, Small Molecule Drug Discovery, Research & Early Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543-4000, United States
| | - Ying Wang
- Fibrosis Chemistry, Small Molecule Drug Discovery, Research & Early Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543-4000, United States
| | - Suresh Dhanusu
- Biocon-Bristol Myers Squibb Research & Development Center, Bangalore 560099, India
| | - Ramesh Reddigunta
- Biocon-Bristol Myers Squibb Research & Development Center, Bangalore 560099, India
| | - Selvakumar Kumaravel
- Biocon-Bristol Myers Squibb Research & Development Center, Bangalore 560099, India
| | - Sutjano Jusuf
- Computer Aided Drug Design, Molecular Structure & Design, Research & Early Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543-4000, United States
| | - Daniel Smith
- Discovery Chemistry Synthesis, Small Molecule Drug Discovery, Research & Early Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543-4000, United States
| | - Subramaniam Krishnananthan
- Discovery Chemistry Synthesis, Small Molecule Drug Discovery, Research & Early Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543-4000, United States
| | - Jianqing Li
- Discovery Chemistry Synthesis, Small Molecule Drug Discovery, Research & Early Development, Bristol Myers Squibb Company, Cambridge, Massachusetts 02140, United States
| | - Tao Wang
- Lead Evaluation, Small Molecule Drug Discovery, Research & Early Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543-4000, United States
| | - Rebekah Heiry
- Lead Evaluation, Small Molecule Drug Discovery, Research & Early Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543-4000, United States
| | - Chi Shing Sum
- Lead Evaluation, Small Molecule Drug Discovery, Research & Early Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543-4000, United States
| | - Stephen S Kalinowski
- Cardiovascular & Fibrosis Discovery Biology, Research & Early Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543-4000, United States
| | - Chen-Pin Hung
- Cardiovascular & Fibrosis Discovery Biology, Research & Early Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543-4000, United States
| | - Ching-Hsuen Chu
- Cardiovascular & Fibrosis Discovery Biology, Research & Early Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543-4000, United States
| | - Anthony V Azzara
- Cardiovascular & Fibrosis Discovery Biology, Research & Early Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543-4000, United States
| | - Milinda Ziegler
- Cardiovascular & Fibrosis Discovery Biology, Research & Early Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543-4000, United States
| | - Lisa Burns
- Cardiovascular & Fibrosis Discovery Biology, Research & Early Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543-4000, United States
| | - Bradley A Zinker
- Cardiovascular & Fibrosis Discovery Biology, Research & Early Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543-4000, United States
| | - Stephanie Boehm
- Cardiovascular & Fibrosis Discovery Biology, Research & Early Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543-4000, United States
| | - Joseph Taylor
- Cardiovascular & Fibrosis Discovery Biology, Research & Early Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543-4000, United States
| | - Julia Sapuppo
- Cardiovascular & Fibrosis Discovery Biology, Research & Early Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543-4000, United States
| | - Kathy Mosure
- Metabolism & Pharmacokinetics, Preclinical Candidate Optimization, Research & Early Development, Bristol Myers Squibb Company, Cambridge, Massachusetts 02140, United States
| | - Gerry Everlof
- Pharmaceutics, Preclinical Candidate Optimization, Research & Early Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543-4000, United States
| | - Victor Guarino
- Metabolism & Pharmacokinetics, Preclinical Candidate Optimization, Research & Early Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543-4000, United States
| | - Lisa Zhang
- Metabolism & Pharmacokinetics, Preclinical Candidate Optimization, Research & Early Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543-4000, United States
| | - Yanou Yang
- Biotransformation, Preclinical Candidate Optimization, Research & Early Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543-4000, United States
| | - Qian Ruan
- Biotransformation, Preclinical Candidate Optimization, Research & Early Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543-4000, United States
| | - Carrie Xu
- Bioanalytical Chemistry, Preclinical Candidate Optimization, Research & Early Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543-4000, United States
| | - Atsu Apedo
- Discovery Analytical Sciences, Preclinical Candidate Optimization, Research & Early Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543-4000, United States
| | - Sarah C Traeger
- Discovery Analytical Sciences, Small Molecule Drug Discovery, Research and Early Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543-4000, United States
| | - Mary Ellen Cvijic
- Lead Evaluation, Small Molecule Drug Discovery, Research & Early Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543-4000, United States
| | - Kimberley A Lentz
- Metabolism & Pharmacokinetics, Preclinical Candidate Optimization, Research & Early Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543-4000, United States
| | - Giridhar Tirucherai
- Clinical Pharmacology, Immunology, Cardiovascular and Fibrosis, Research and Early Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543-5326, United States
| | - Lakshmi Sivaraman
- Nonclinical Safety Evaluation, Research & Development, Bristol Myers Squibb Company, New Brunswick, New Jersey 08903-0191, United States
| | - Jeffrey Robl
- Fibrosis Chemistry, Small Molecule Drug Discovery, Research & Early Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543-4000, United States
| | - Bruce A Ellsworth
- Fibrosis Chemistry, Small Molecule Drug Discovery, Research & Early Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543-4000, United States
| | - Glenn Rosen
- Cardiovascular & Fibrosis Discovery Biology, Research & Early Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543-4000, United States
| | - David A Gordon
- Cardiovascular & Fibrosis Discovery Biology, Research & Early Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543-4000, United States
| | - Matthew G Soars
- Metabolism & Pharmacokinetics, Preclinical Candidate Optimization, Research & Early Development, Bristol Myers Squibb Company, Cambridge, Massachusetts 02140, United States
| | - Michael Gill
- Discovery Toxicology, Preclinical Candidate Optimization, Research and Early Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543-4000, United States
| | - Brian J Murphy
- Cardiovascular & Fibrosis Discovery Biology, Research & Early Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543-4000, United States
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25
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Liu W, Hopkins AM, Hou J. The development of modulators for lysophosphatidic acid receptors: A comprehensive review. Bioorg Chem 2021; 117:105386. [PMID: 34695732 DOI: 10.1016/j.bioorg.2021.105386] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2021] [Revised: 09/03/2021] [Accepted: 09/25/2021] [Indexed: 12/23/2022]
Abstract
Lysophosphatidic acids (LPAs) are bioactive phospholipids implicated in a wide range of cellular activities that regulate a diverse array of biological functions. They recognize two types of G protein-coupled receptors (LPARs): LPA1-3 receptors and LPA4-6 receptors that belong to the endothelial gene (EDG) family and non-endothelial gene family, respectively. In recent years, the LPA signaling pathway has captured an increasing amount of attention because of its involvement in various diseases, such as idiopathic pulmonary fibrosis, cancers, cardiovascular diseases and neuropathic pain, making it a promising target for drug development. While no drugs targeting LPARs have been approved by the FDA thus far, at least three antagonists have entered phase Ⅱ clinical trials for idiopathic pulmonary fibrosis (BMS-986020 and BMS-986278) and systemic sclerosis (SAR100842), and one radioligand (BMT-136088/18F-BMS-986327) has entered phase Ⅰ clinical trials for positron emission tomography (PET) imaging of idiopathic pulmonary fibrosis. This article provides an extensive review on the current status of ligand development targeting LPA receptors to modulate LPA signaling and their therapeutic potential in various diseases.
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Affiliation(s)
- Wenjie Liu
- Department of Chemistry, Lakehead University and Thunder Bay Regional Health Research Institute, 980 Oliver Road, Thunder Bay, ON P7B 6V4, Canada
| | - Austin M Hopkins
- Department of Chemistry, Lakehead University and Thunder Bay Regional Health Research Institute, 980 Oliver Road, Thunder Bay, ON P7B 6V4, Canada
| | - Jinqiang Hou
- Department of Chemistry, Lakehead University and Thunder Bay Regional Health Research Institute, 980 Oliver Road, Thunder Bay, ON P7B 6V4, Canada.
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26
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Kim D, Kim HJ, Baek JO, Roh JY, Jun HS. Lysophosphatidic Acid Mediates Imiquimod-Induced Psoriasis-like Symptoms by Promoting Keratinocyte Proliferation through LPAR1/ROCK2/PI3K/AKT Signaling Pathway. Int J Mol Sci 2021; 22:10777. [PMID: 34639115 DOI: 10.3390/ijms221910777] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 09/28/2021] [Accepted: 09/29/2021] [Indexed: 12/19/2022] Open
Abstract
Psoriasis is a chronic inflammatory skin disease. Recently, lysophosphatidic acid (LPA)/LPAR5 signaling has been reported to be involved in both NLRP3 inflammasome activation in macrophages and keratinocyte activation to produce inflammatory cytokines, contributing to psoriasis pathogenesis. However, the effect and molecular mechanisms of LPA/LPAR signaling in keratinocyte proliferation in psoriasis remain unclear. In this study, we investigated the effects of LPAR1/3 inhibition on imiquimod (IMQ)-induced psoriasis-like mice. Treatment with the LPAR1/3 antagonist, ki16425, alleviated skin symptoms in IMQ-induced psoriasis-like mouse models and decreased keratinocyte proliferation in the lesion. It also decreased LPA-induced cell proliferation and cell cycle progression via increased cyclin A2, cyclin D1, cyclin-dependent kinase (CDK)2, and CDK4 expression and decreased p27Kip1 expression in HaCaT cells. LPAR1 knockdown in HaCaT cells reduced LPA-induced proliferation, suppressed cyclin A2 and CDK2 expression, and restored p27Kip1 expression. LPA increased Rho-associated protein kinase 2 (ROCK2) expression and PI3K/AKT activation; moreover, the pharmacological inhibition of ROCK2 and PI3K/AKT signaling suppressed LPA-induced cell cycle progression. In conclusion, we demonstrated that LPAR1/3 antagonist alleviates IMQ-induced psoriasis-like symptoms in mice, and in particular, LPAR1 signaling is involved in cell cycle progression via ROCK2/PI3K/AKT pathways in keratinocytes.
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27
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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] [What about the content of this article? (0)] [Affiliation(s)] [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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28
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Wang H, Feng Z, Han X, Xing Y, Zhang X. Downregulation of acylglycerol kinase suppresses high glucose-induced endothelial-mesenchymal transition in HRECs through regulating the LPAR1/TGF-β/Notch signaling pathway. Can J Physiol Pharmacol 2021; 100:142-150. [PMID: 34559978 DOI: 10.1139/cjpp-2021-0265] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The endothelial-mesenchymal transition (EndMT) participates in the progression of diabetic retinopathy (DR), but cell-intrinsic factors modulating this process remain elusive. In this study, we explored the role of lysophosphatidic acid (LPA)-producing enzyme, acylglycerol kinase (AGK) in the EndMT of human retinal microvascular endothelial cells (HRECs) under high glucose (HG) conditions. We found that AGK was significantly elevated in HG-treated cells. In addition, AGK knockdown reversed the HG-induced EndMT in HRECs, which was evidenced by the increased epithelial markers (CD31 and VE-cadherin) and decreased mesenchymal markers (FSP1 and α-SMA). Furthermore, downregulation of AGK inhibited the HG-induced activation of TGF-β/Notch pathways, whereas exogenous TGF-β1 (10 ng/ml) impeded the inhibitory effects of AGK knockdown on HG-induced EndMT in HRECs. Additionally, the silence of AGK abolished the HG-induced upregulation of LPA and its receptor LPAR1, and overexpression of LPAR1 further rescued the AGK knockdown-mediated inhibition of the EndMT process. In conclusion, we demonstrate that downregulation of acylglycerol kinase suppresses high glucose-induced endothelial-mesenchymal transition in HRECs through regulating the LPAR1/TGF-β/Notch signaling pathway, indicating that AGK might be a potential therapeutic target for the treatment of DR.
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Affiliation(s)
- Haijing Wang
- First Affiliated Hospital of Harbin Medical University, 74559, Harbin, Heilongjiang, China;
| | - Zhuolei Feng
- First Affiliated Hospital of Harbin Medical University, 74559, Harbin, Heilongjiang, China;
| | - Xue Han
- First Affiliated Hospital of Harbin Medical University, 74559, Harbin, Heilongjiang, China;
| | - Yue Xing
- First Affiliated Hospital of Harbin Medical University, 74559, Harbin, Heilongjiang, China;
| | - Xiaomei Zhang
- First Affiliated Hospital of Harbin Medical University, 74559, Harbin, Heilongjiang, China;
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29
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Balijepalli P, Sitton CC, Meier KE. Lysophosphatidic Acid Signaling in Cancer Cells: What Makes LPA So Special? Cells 2021; 10:2059. [PMID: 34440828 DOI: 10.3390/cells10082059] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 08/06/2021] [Accepted: 08/07/2021] [Indexed: 12/13/2022] Open
Abstract
Lysophosphatidic acid (LPA) refers to a family of simple phospholipids that act as ligands for G protein-coupled receptors. While LPA exerts effects throughout the body in normal physiological circumstances, its pathological role in cancer is of great interest from a therapeutic viewpoint. The numerous LPA receptors (LPARs) are coupled to a variety of G proteins, and more than one LPAR is typically expressed on any given cell. While the individual receptors signal through conventional GPCR pathways, LPA is particularly efficacious in stimulating cancer cell proliferation and migration. This review addresses the mechanistic aspects underlying these pro-tumorigenic effects. We provide examples of LPA signaling responses in various types of cancers, with an emphasis on those where roles have been identified for specific LPARs. While providing an overview of LPAR signaling, these examples also reveal gaps in our knowledge regarding the mechanisms of LPA action at the receptor level. The current understanding of the LPAR structure and the roles of LPAR interactions with other receptors are discussed. Overall, LPARs provide insight into the potential molecular mechanisms that underlie the ability of individual GPCRs (or combinations of GPCRs) to elicit a unique spectrum of responses from their agonist ligands. Further knowledge of these mechanisms will inform drug discovery, since GPCRs are promising therapeutic targets for cancer.
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Dobersalske C, Grundmann M, Timmermann A, Theisen L, Kölling F, Harris RC, Fuerstner C, Becker MS, Wunder F. Establishment of a novel, cell-based autotaxin assay. Anal Biochem 2021; 630:114322. [PMID: 34343482 DOI: 10.1016/j.ab.2021.114322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 07/26/2021] [Accepted: 07/29/2021] [Indexed: 11/29/2022]
Abstract
Autotaxin (ATX) plays an important role in (patho-)physiological lysophosphatidic acid (LPA) signaling. Here we describe the establishment of novel cell-based ATX assay formats. ATX-mediated LPA generation is detected by using a stable LPA receptor reporter cell line. In a first assay variant, ATX-mediated LPA generation is started in the absence of cells and the reaction mix is transferred to the reporter cells after stopping the reaction (two-tube assay). In a second assay variant, ATX is added to the reporter cells expressing the known autotaxin binding partners integrin β1, integrin β3 and the LPA receptor 1. LPA generation is started in the presence of cells and is detected in real-time (one-tube assay). Structurally diverse ATX inhibitors with different binding modes were characterized in both cell-based assay variants and were also tested in the well-established biochemical choline release assay. ATX inhibitors displayed similar potencies, regardless if the assay was performed in the absence or presence of cells, and comparable results were obtained in all three assay formats. In summary, our novel cell-based ATX assay formats are well-suited for sensitive detection of enzyme activity as well as for the characterization of ATX inhibitors in the presence and absence of cells.
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Affiliation(s)
- Celia Dobersalske
- Lead Discovery, Bayer AG, Pharma Research and Development Center, Aprather Weg 18a, D-42096, Wuppertal, Germany
| | - Manuel Grundmann
- Cardiovascular Research, Bayer AG, Pharma Research and Development Center, Aprather Weg 18a, D-42096, Wuppertal, Germany
| | - Andreas Timmermann
- Lead Discovery, Bayer AG, Pharma Research and Development Center, Aprather Weg 18a, D-42096, Wuppertal, Germany
| | - Laura Theisen
- Lead Discovery, Bayer AG, Pharma Research and Development Center, Aprather Weg 18a, D-42096, Wuppertal, Germany
| | - Florian Kölling
- Computational Molecular Design. Bayer AG, Pharma Research and Development Center, Aprather Weg 18a, D-42096, Wuppertal, Germany
| | | | - Chantal Fuerstner
- Medicinal Chemistry, Bayer AG, Pharma Research and Development Center, Aprather Weg 18a, D-42096, Wuppertal, Germany
| | - Michael S Becker
- Cardiovascular Research, Bayer AG, Pharma Research and Development Center, Aprather Weg 18a, D-42096, Wuppertal, Germany
| | - Frank Wunder
- Lead Discovery, Bayer AG, Pharma Research and Development Center, Aprather Weg 18a, D-42096, Wuppertal, Germany.
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Abstract
Phosphatidic acids (PAs) are glycerophospholipids that regulate key cell signaling pathways governing cell growth and proliferation, including the mTOR and Hippo pathways. Their acyl chains vary in tail length and degree of saturation, leading to marked differences in the signaling functions of different PA species. For example, in mTOR signaling, saturated forms of PA are inhibitory, whereas unsaturated forms are activating. To enable rapid control over PA signaling, we describe here the development of photoswitchable analogues of PA, termed AzoPA and dAzoPA, that contain azobenzene groups in one or both lipid tails, respectively. These photolipids enable optical control of their tail structure and can be reversibly switched between a straight trans form and a relatively bent cis form. We found that cis-dAzoPA selectively activates mTOR signaling, mimicking the bioactivity of unsaturated forms of PA. Further, in the context of Hippo signaling, whose growth-suppressing activity is blocked by PA, we found that the cis forms of both AzoPA and dAzoPA selectively inhibit this pathway. Collectively, these photoswitchable PA analogues enable optical control of mTOR and Hippo signaling, and we envision future applications of these probes to dissect the pleiotropic effects of physiological and pathological PA signaling.
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Affiliation(s)
- Reika Tei
- Department
of Chemistry and Chemical Biology and Weill Institute for Cell and
Molecular Biology, Cornell University, Ithaca, New York 14850, United States
| | - Johannes Morstein
- Department
of Chemistry, New York University, New York, New York 10003, United States
| | - Andrej Shemet
- Department
of Chemistry, New York University, New York, New York 10003, United States
| | - Dirk Trauner
- Department
of Chemistry, New York University, New York, New York 10003, United States
| | - Jeremy M. Baskin
- Department
of Chemistry and Chemical Biology and Weill Institute for Cell and
Molecular Biology, Cornell University, Ithaca, New York 14850, United States
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Gaire BP, Choi JW. Critical Roles of Lysophospholipid Receptors in Activation of Neuroglia and Their Neuroinflammatory Responses. Int J Mol Sci 2021; 22:7864. [PMID: 34360625 DOI: 10.3390/ijms22157864] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 07/21/2021] [Accepted: 07/21/2021] [Indexed: 12/12/2022] Open
Abstract
Activation of microglia and/or astrocytes often releases proinflammatory molecules as critical pathogenic mediators that can promote neuroinflammation and secondary brain damages in diverse diseases of the central nervous system (CNS). Therefore, controlling the activation of glial cells and their neuroinflammatory responses has been considered as a potential therapeutic strategy for treating neuroinflammatory diseases. Recently, receptor-mediated lysophospholipid signaling, sphingosine 1-phosphate (S1P) receptor- and lysophosphatidic acid (LPA) receptor-mediated signaling in particular, has drawn scientific interest because of its critical roles in pathogenies of diverse neurological diseases such as neuropathic pain, systemic sclerosis, spinal cord injury, multiple sclerosis, cerebral ischemia, traumatic brain injury, hypoxia, hydrocephalus, and neuropsychiatric disorders. Activation of microglia and/or astrocytes is a common pathogenic event shared by most of these CNS disorders, indicating that lysophospholipid receptors could influence glial activation. In fact, many studies have reported that several S1P and LPA receptors can influence glial activation during the pathogenesis of cerebral ischemia and multiple sclerosis. This review aims to provide a comprehensive framework about the roles of S1P and LPA receptors in the activation of microglia and/or astrocytes and their neuroinflammatory responses in CNS diseases.
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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] [What about the content of this article? (0)] [Affiliation(s)] [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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Sant'Anna JF, Baldez VS, Razuck-Garrão NA, Lemos T, Diaz BL, Einicker-Lamas M. Lysophosphatidic acid (LPA) as a modulator of plasma membrane Ca 2+-ATPase from basolateral membranes of kidney proximal tubules. J Physiol Biochem 2021; 77:321-9. [PMID: 33704695 DOI: 10.1007/s13105-021-00800-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [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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35
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Geng H, Lan R, Liu Y, Chen W, Wu M, Saikumar P, Weinberg JM, Venkatachalam MA. Proximal tubule LPA1 and LPA2 receptors use divergent signaling pathways to additively increase profibrotic cytokine secretion. Am J Physiol Renal Physiol 2021; 320:F359-F374. [PMID: 33427061 PMCID: PMC7988817 DOI: 10.1152/ajprenal.00494.2020] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 12/17/2020] [Accepted: 12/30/2020] [Indexed: 01/01/2023] Open
Abstract
Lysophosphatidic acid (LPA) increases platelet-derived growth factor-B (PDGFB) and connective tissue growth factor (CTGF) production and secretion by proximal tubule (PT) cells through LPA2 receptor-Gqα-αvβ6-integrin-mediated activation of transforming growth factor-β1 (TGFB1). LPA2, β6-integrin, PDGFB, and CTGF increase in kidneys after ischemia-reperfusion injury (IRI), coinciding with fibrosis. The TGFB1 receptor antagonist SD-208 prevents increases of β6-integrin, TGFB1-SMAD signaling, and PDGFB/CTGF expression after IRI and ameliorates fibrosis (Geng H, Lan R, Singha PK, Gilchrist A, Weinreb PH, Violette SM, Weinberg JM, Saikumar P, Venkatachalam MA. Am J Pathol 181: 1236-1249, 2012; Geng H, Lan R, Wang G, Siddiqi AR, Naski MC, Brooks AI, Barnes JL, Saikumar P, Weinberg JM, Venkatachalam MA. Am J Pathol 174: 1291-1308, 2009). We report now that LPA1 receptor signaling through epidermal growth factor receptor (EGFR)-ERK1/2-activator protein-1 cooperates with LPA2-dependent TGFB1 signaling to additively increase PDGFB/CTGF production and secretion by PT cells. Conversely, inhibition of both pathways results in greater suppression of PDGFB/CTGF production and secretion and promotes greater PT cellular differentiation than inhibiting one pathway alone. Antagonism of the LPA-generating enzyme autotaxin suppressed signaling through both pathways. After IRI, kidneys showed not only more LPA2, nuclear SMAD2/3, and PDGFB/CTGF but also increased LPA1 and autotaxin proteins, together with enhanced EGFR/ERK1/2 activation. Remarkably, the TGFB1 receptor antagonist SD-208 prevented all of these abnormalities excepting increased LPA2. SD-208 inhibits only one arm of LPA signaling: LPA2-Gqα-αvβ6-integrin-dependent production of active TGFB1 and its receptor-bound downstream effects. Consequently, far-reaching protection by SD-208 against IRI-induced signaling alterations and tubule-interstitial pathology is not fully explained by our data. TGFB1-dependent feedforward modulation of LPA1 signaling is one possibility. SD-208 effects may also involve mitigation of injury caused by IRI-induced TGFB1 signaling in endothelial cells and monocytes. Our results have translational implications for using TGFB1 receptor antagonists, LPA1 and LPA2 inhibitors concurrently, and autotaxin inhibitors in acute kidney injury to prevent the development of chronic kidney disease.
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Affiliation(s)
- Hui Geng
- Department of Pathology, University of Texas Health Science Center, San Antonio, Texas
| | - Rongpei Lan
- Department of Pathology, University of Texas Health Science Center, San Antonio, Texas
| | - Yaguang Liu
- Department of Pathology, University of Texas Health Science Center, San Antonio, Texas
| | - Wei Chen
- Department of Pathology, University of Texas Health Science Center, San Antonio, Texas
| | - Meng Wu
- Department of Pathology, University of Texas Health Science Center, San Antonio, Texas
| | - Pothana Saikumar
- Department of Pathology, University of Texas Health Science Center, San Antonio, Texas
| | - Joel M Weinberg
- Department of Medicine, University of Michigan Medical Center, Ann Arbor, Michigan
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Hu HB, Song ZQ, Song GP, Li S, Tu HQ, Wu M, Zhang YC, Yuan JF, Li TT, Li PY, Xu YL, Shen XL, Han QY, Li AL, Zhou T, Chun J, Zhang XM, Li HY. LPA signaling acts as a cell-extrinsic mechanism to initiate cilia disassembly and promote neurogenesis. Nat Commun 2021; 12:662. [PMID: 33510165 PMCID: PMC7843646 DOI: 10.1038/s41467-021-20986-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Accepted: 12/15/2020] [Indexed: 01/17/2023] Open
Abstract
Dynamic assembly and disassembly of primary cilia controls embryonic development and tissue homeostasis. Dysregulation of ciliogenesis causes human developmental diseases termed ciliopathies. Cell-intrinsic regulatory mechanisms of cilia disassembly have been well-studied. The extracellular cues controlling cilia disassembly remain elusive, however. Here, we show that lysophosphatidic acid (LPA), a multifunctional bioactive phospholipid, acts as a physiological extracellular factor to initiate cilia disassembly and promote neurogenesis. Through systematic analysis of serum components, we identify a small molecular-LPA as the major driver of cilia disassembly. Genetic inactivation and pharmacological inhibition of LPA receptor 1 (LPAR1) abrogate cilia disassembly triggered by serum. The LPA-LPAR-G-protein pathway promotes the transcription and phosphorylation of cilia disassembly factors-Aurora A, through activating the transcription coactivators YAP/TAZ and calcium/CaM pathway, respectively. Deletion of Lpar1 in mice causes abnormally elongated cilia and decreased proliferation in neural progenitor cells, thereby resulting in defective neurogenesis. Collectively, our findings establish LPA as a physiological initiator of cilia disassembly and suggest targeting the metabolism of LPA and the LPA pathway as potential therapies for diseases with dysfunctional ciliogenesis.
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Affiliation(s)
- Huai-Bin Hu
- State Key Laboratory of Proteomics, National Center of Biomedical Analysis, Beijing, China
| | - Zeng-Qing Song
- State Key Laboratory of Proteomics, National Center of Biomedical Analysis, Beijing, China
| | - Guang-Ping Song
- State Key Laboratory of Proteomics, National Center of Biomedical Analysis, Beijing, China
| | - Sen Li
- State Key Laboratory of Proteomics, National Center of Biomedical Analysis, Beijing, China
| | - Hai-Qing Tu
- State Key Laboratory of Proteomics, National Center of Biomedical Analysis, Beijing, China
| | - Min Wu
- State Key Laboratory of Proteomics, National Center of Biomedical Analysis, Beijing, China
| | - Yu-Cheng Zhang
- State Key Laboratory of Proteomics, National Center of Biomedical Analysis, Beijing, China
| | - Jin-Feng Yuan
- State Key Laboratory of Proteomics, National Center of Biomedical Analysis, Beijing, China
| | - Ting-Ting Li
- State Key Laboratory of Proteomics, National Center of Biomedical Analysis, Beijing, China
| | - Pei-Yao Li
- State Key Laboratory of Proteomics, National Center of Biomedical Analysis, Beijing, China
| | - Yu-Ling Xu
- State Key Laboratory of Proteomics, National Center of Biomedical Analysis, Beijing, China
| | - Xiao-Lin Shen
- State Key Laboratory of Proteomics, National Center of Biomedical Analysis, Beijing, China
| | - Qiu-Ying Han
- State Key Laboratory of Proteomics, National Center of Biomedical Analysis, Beijing, China
| | - Ai-Ling Li
- State Key Laboratory of Proteomics, National Center of Biomedical Analysis, Beijing, China
| | - Tao Zhou
- State Key Laboratory of Proteomics, National Center of Biomedical Analysis, Beijing, China
| | - Jerold Chun
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, USA
| | - Xue-Min Zhang
- State Key Laboratory of Proteomics, National Center of Biomedical Analysis, Beijing, China.
| | - Hui-Yan Li
- State Key Laboratory of Proteomics, National Center of Biomedical Analysis, Beijing, China.
- School of Basic Medical Sciences, Fudan University, Shanghai, China.
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Takagi S, Sasaki Y, Koike S, Takemoto A, Seto Y, Haraguchi M, Ukaji T, Kawaguchi T, Sugawara M, Saito M, Funauchi Y, Ae K, Matsumoto S, Fujita N, Katayama R. Platelet-derived lysophosphatidic acid mediated LPAR1 activation as a therapeutic target for osteosarcoma metastasis. Oncogene 2021; 40:5548-5558. [PMID: 34302117 PMCID: PMC8429042 DOI: 10.1038/s41388-021-01956-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 07/02/2021] [Accepted: 07/09/2021] [Indexed: 02/07/2023]
Abstract
Osteosarcoma is the most common primary malignant bone cancer, with high rates of pulmonary metastasis. Osteosarcoma patients with pulmonary metastasis have worse prognosis than those with localized disease, leading to dramatically reduced survival rates. Therefore, understanding the biological characteristics of metastatic osteosarcoma and the molecular mechanisms of invasion and metastasis of osteosarcoma cells will lead to the development of innovative therapeutic intervention for advanced osteosarcoma. Here, we identified that osteosarcoma cells commonly exhibit high platelet activation-inducing characteristics, and molecules released from activated platelets promote the invasiveness of osteosarcoma cells. Given that heat-denatured platelet releasate maintained the ability to promote osteosarcoma invasion, we focused on heat-tolerant molecules, such as lipid mediators in the platelet releasate. Osteosarcoma-induced platelet activation leads to abundant lysophosphatidic acid (LPA) release. Exposure to LPA or platelet releasate induced morphological changes and increased invasiveness of osteosarcoma cells. By analyzing publicly available transcriptome datasets and our in-house osteosarcoma patient-derived xenograft tumors, we found that LPA receptor 1 (LPAR1) is notably upregulated in osteosarcoma. LPAR1 gene KO in osteosarcoma cells abolished the platelet-mediated osteosarcoma invasion in vitro and the formation of early pulmonary metastatic foci in experimental pulmonary metastasis models. Of note, the pharmacological inhibition of LPAR1 by the orally available LPAR1 antagonist, ONO-7300243, prevented pulmonary metastasis of osteosarcoma in the mouse models. These results indicate that the LPA-LPAR1 axis is essential for the osteosarcoma invasion and metastasis, and targeting LPAR1 would be a promising therapeutic intervention for advanced osteosarcoma.
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Affiliation(s)
- Satoshi Takagi
- grid.410807.a0000 0001 0037 4131Division of Experimental Chemotherapy, Cancer Chemotherapy Center, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Yuki Sasaki
- grid.410807.a0000 0001 0037 4131Division of Experimental Chemotherapy, Cancer Chemotherapy Center, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Sumie Koike
- grid.410807.a0000 0001 0037 4131Division of Experimental Chemotherapy, Cancer Chemotherapy Center, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Ai Takemoto
- grid.410807.a0000 0001 0037 4131Division of Experimental Chemotherapy, Cancer Chemotherapy Center, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Yosuke Seto
- grid.410807.a0000 0001 0037 4131Division of Experimental Chemotherapy, Cancer Chemotherapy Center, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Mizuki Haraguchi
- grid.410807.a0000 0001 0037 4131Division of Experimental Chemotherapy, Cancer Chemotherapy Center, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Takao Ukaji
- grid.410807.a0000 0001 0037 4131Division of Experimental Chemotherapy, Cancer Chemotherapy Center, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Tokuichi Kawaguchi
- grid.410807.a0000 0001 0037 4131Project for Development of Genomics-based Cancer Medicine, Cancer Precision Medicine Center, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Minoru Sugawara
- grid.410807.a0000 0001 0037 4131Project for Development of Genomics-based Cancer Medicine, Cancer Precision Medicine Center, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Masanori Saito
- grid.410807.a0000 0001 0037 4131Department of Orthopedic Oncology, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Yuki Funauchi
- grid.410807.a0000 0001 0037 4131Department of Orthopedic Oncology, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Keisuke Ae
- grid.410807.a0000 0001 0037 4131Department of Orthopedic Oncology, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Seiichi Matsumoto
- grid.410807.a0000 0001 0037 4131Sarcoma Center, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Naoya Fujita
- grid.410807.a0000 0001 0037 4131Cancer Chemotherapy Center, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Ryohei Katayama
- grid.410807.a0000 0001 0037 4131Division of Experimental Chemotherapy, Cancer Chemotherapy Center, Japanese Foundation for Cancer Research, Tokyo, Japan
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Hirata T, Smith SV, Takahashi T, Miyata N, Roman RJ. Increased Levels of Renal Lysophosphatidic Acid in Rodent Models with Renal Disease. J Pharmacol Exp Ther 2020; 376:240-249. [PMID: 33277348 DOI: 10.1124/jpet.120.000353] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Accepted: 12/01/2020] [Indexed: 12/29/2022] Open
Abstract
Lysophosphatidic acid (LPA) is a bioactive lipid mediator that has been implicated in the pathophysiology of kidney disease. However, few studies have attempted to measure changes in the levels of various LPA species in the kidney after the development of renal disease. The present study measured the renal LPA levels during the development of kidney disease in rat models of hypertension, diabetes, and obstructive nephropathy using liquid chromatography/mass spectrometry/mass spectrometry. LPA levels (sum of 16:0, 18:0, 18:1, 18:2, and 20:4 LPA) were higher in the renal cortex of hypertensive Dahl salt-sensitive (Dahl S) rats fed a high-salt diet than those in normotensive rats fed a low-salt diet (296.6 ± 22.9 vs. 196.3 ± 8.5 nmol/g protein). LPA levels were elevated in the outer medulla of the kidney of streptozotocin-induced type 1 diabetic Dahl S rats compared with control rats (624.6 ± 129.5 vs. 318.8 ± 17.1 nmol/g protein). LPA levels were also higher in the renal cortex of 18-month-old, type 2 diabetic nephropathy (T2DN) rats with more severe renal injury than in 6-month-old T2DN rats (184.9 ± 20.9 vs. 116.9 ± 6.0 nmol/g protein). LPA levels also paralleled the progression of renal fibrosis in the renal cortex of Sprague-Dawley rats after unilateral ureteral obstruction (UUO). Administration of an LPA receptor antagonist, Ki16425, reduced the degree of renal fibrosis in UUO rats. These results suggest that the production of renal LPA increases during the development of renal injury and contributes to renal fibrosis. SIGNIFICANCE STATEMENT: The present study reveals that the lysophosphatidic acid (LPA) levels increase in the kidney in rat models of hypertension, diabetes, and obstructive nephropathy, and administration of an LPA receptor antagonist attenuates renal fibrosis. Therapeutic approaches that target the formation or actions of renal LPA might be renoprotective and have therapeutic potential.
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Affiliation(s)
- Takashi Hirata
- Department of Pharmacology and Toxicology, University of Mississippi Medical Center, Jackson, Mississippi (T.H., S.V.S., R.J.R.); and Pharmacology Laboratories (T.H., T.T.) and Research Headquarters of Pharmaceutical Operation (N.M.), Taisho Pharmaceutical Co., Ltd., Saitama, Japan
| | - Stanley V Smith
- Department of Pharmacology and Toxicology, University of Mississippi Medical Center, Jackson, Mississippi (T.H., S.V.S., R.J.R.); and Pharmacology Laboratories (T.H., T.T.) and Research Headquarters of Pharmaceutical Operation (N.M.), Taisho Pharmaceutical Co., Ltd., Saitama, Japan
| | - Teisuke Takahashi
- Department of Pharmacology and Toxicology, University of Mississippi Medical Center, Jackson, Mississippi (T.H., S.V.S., R.J.R.); and Pharmacology Laboratories (T.H., T.T.) and Research Headquarters of Pharmaceutical Operation (N.M.), Taisho Pharmaceutical Co., Ltd., Saitama, Japan
| | - Noriyuki Miyata
- Department of Pharmacology and Toxicology, University of Mississippi Medical Center, Jackson, Mississippi (T.H., S.V.S., R.J.R.); and Pharmacology Laboratories (T.H., T.T.) and Research Headquarters of Pharmaceutical Operation (N.M.), Taisho Pharmaceutical Co., Ltd., Saitama, Japan
| | - Richard J Roman
- Department of Pharmacology and Toxicology, University of Mississippi Medical Center, Jackson, Mississippi (T.H., S.V.S., R.J.R.); and Pharmacology Laboratories (T.H., T.T.) and Research Headquarters of Pharmaceutical Operation (N.M.), Taisho Pharmaceutical Co., Ltd., Saitama, Japan
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Abstract
One class of molecules that are now coming to be recognized as essential for our understanding of the nervous system are the lysophospholipids. One of the major signaling lysophospholipids is lysophosphatidic acid, also known as LPA. LPA activates a variety of G protein-coupled receptors (GPCRs) leading to a multitude of physiological responses. In this review, I describe our current understanding of the role of LPA and LPA receptor signaling in the development and function of the nervous system, especially the central nervous system (CNS). In addition, I highlight how aberrant LPA receptor signaling may underlie neuropathological conditions, with important clinical application.
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Affiliation(s)
- Eric Birgbauer
- Department of Biology, Winthrop University, Rock Hill, SC, USA.
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40
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Ueda H, Neyama H, Matsushita Y. Lysophosphatidic Acid Receptor 1- and 3-Mediated Hyperalgesia and Hypoalgesia in Diabetic Neuropathic Pain Models in Mice. Cells 2020; 9:E1906. [PMID: 32824296 DOI: 10.3390/cells9081906] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 08/08/2020] [Accepted: 08/13/2020] [Indexed: 12/28/2022] Open
Abstract
Lysophosphatidic acid (LPA) signaling is known to play key roles in the initiation and maintenance of various chronic pain models. Here we examined whether LPA signaling is also involved in diabetes-induced abnormal pain behaviors. The high-fat diet (HFD) showing elevation of blood glucose levels and body weight caused thermal, mechanical hyperalgesia, hypersensitivity to 2000 or 250 Hz electrical-stimulation and hyposensitivity to 5 Hz stimulation to the paw in wild-type (WT) mice. These HFD-induced abnormal pain behaviors and body weight increase, but not elevated glucose levels were abolished in LPA1−/− and LPA3−/− mice. Repeated daily intrathecal (i.t.) treatments with LPA1/3 antagonist AM966 reversed these abnormal pain behaviors. Similar abnormal pain behaviors and their blockade by daily AM966 (i.t.) or twice daily Ki16425, another LPA1/3 antagonist was also observed in db/db mice which show high glucose levels and body weight. Furthermore, streptozotocin-induced similar abnormal pain behaviors, but not elevated glucose levels or body weight loss were abolished in LPA1−/− and LPA3−/− mice. These results suggest that LPA1 and LPA3 play key roles in the development of both type I and type II diabetic neuropathic pain.
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41
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Amaral RF, Geraldo LHM, Einicker-Lamas M, E Spohr TCLDS, Mendes F, Lima FRS. Microglial lysophosphatidic acid promotes glioblastoma proliferation and migration via LPA 1 receptor. J Neurochem 2020; 156:499-512. [PMID: 32438456 DOI: 10.1111/jnc.15097] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 04/27/2020] [Accepted: 05/08/2020] [Indexed: 12/12/2022]
Abstract
Glioblastomas (GBMs) are highly aggressive primary brain tumors characterized by cellular heterogeneity, insensitivity to chemotherapy and poor patient survival. Lysophosphatidic acid (LPA) is a lysophospholipid that acts as a bioactive signaling molecule and plays important roles in diverse biological events during development and disease, including several cancer types. Microglial cells, the resident macrophages of the central nervous system, express high levels of Autotaxin (ATX,Enpp2), an enzyme that synthetizes LPA. Our study aimed to investigate the role of LPA on tumor growth and invasion in the context of microglia-GBM interaction. First, through bioinformatics studies, patient data analysis demonstrated that more aggressive GBM expressed higher levels of ENPP2, which was also associated with worse patient prognosis with proneural GBM. Using GBM-microglia co-culture system we then demonstrated that GBM secreted factors were able to increase LPA1 and ATX in microglia, which could be further enhanced by hypoxia. On the other hand, interaction with microglial cells also increased ATX expression in GBM. Furthermore, microglial-induced GBM proliferation and migration could be inhibited by pharmacological inhibition of LPA1 , suggesting that microglial-derived LPA could support tumor growth and invasion. Finally, increased LPA1 expression was observed in GBM comparing with other gliomas and could be also associated with worse patient survival. These results show for the first time a microglia-GBM interaction through the LPA pathway with relevant implications for tumor progression. A better understanding of this interaction can lead to the development of new therapeutic strategies setting LPA as a potential target for GBM treatment.
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Affiliation(s)
- Rackele F Amaral
- Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Luiz H M Geraldo
- Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Marcelo Einicker-Lamas
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Tania C L de S E Spohr
- Instituto Estadual do Cérebro Paulo Niemeyer - Secretaria de Estado de Saúde, Rio de Janeiro, Brazil
| | - Fabio Mendes
- Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Flavia R S Lima
- Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
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Morstein J, Dacheux MA, Norman DD, Shemet A, Donthamsetti PC, Citir M, Frank JA, Schultz C, Isacoff EY, Parrill AL, Tigyi GJ, Trauner D. Optical Control of Lysophosphatidic Acid Signaling. J Am Chem Soc 2020; 142:10612-10616. [PMID: 32469525 DOI: 10.1021/jacs.0c02154] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Lysophosphatidic acid (LPA) is a phospholipid that acts as an extracellular signaling molecule and activates the family of lysophosphatidic acid receptors (LPA1-6). These G protein-coupled receptors (GPCRs) are broadly expressed and are particularly important in development as well as in the nervous, cardiovascular, reproductive, gastrointestinal, and pulmonary systems. Here, we report on a photoswitchable analogue of LPA, termed AzoLPA, which contains an azobenzene photoswitch embedded in the acyl chain. AzoLPA enables optical control of LPA receptor activation, shown through its ability to rapidly control LPA-evoked increases in intracellular Ca2+ levels. AzoLPA shows greater activation of LPA receptors in its light-induced cis-form than its dark-adapted (or 460 nm light-induced) trans-form. AzoLPA enabled the optical control of neurite retraction through its activation of the LPA2 receptor.
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Affiliation(s)
- Johannes Morstein
- Department of Chemistry, New York University, New York, New York 10003, United States
| | - Mélanie A Dacheux
- Department of Physiology, College of Medicine, University of Tennessee Health Science Center (UTHSC), Memphis, Tennessee 39163, United States
| | - Derek D Norman
- Department of Physiology, College of Medicine, University of Tennessee Health Science Center (UTHSC), Memphis, Tennessee 39163, United States
| | - Andrej Shemet
- Department of Chemistry, New York University, New York, New York 10003, United States
| | - Prashant C Donthamsetti
- Department of Molecular and Cell Biology, University of California, Berkeley, Berkeley, California 94720, United States
| | - Mevlut Citir
- European Molecular Biology Laboratory (EMBL), Heidelberg 69117, Germany
| | - James A Frank
- Vollum Institute, Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Portland, Oregon 97239, United States
| | - Carsten Schultz
- European Molecular Biology Laboratory (EMBL), Heidelberg 69117, Germany.,Chemical Physiology & Biochemistry Department, Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Portland, Oregon 97239, United States
| | - Ehud Y Isacoff
- Department of Molecular and Cell Biology, University of California, Berkeley, Berkeley, California 94720, United States.,Helen Wills Neuroscience Institute, University of California, Berkeley, Berkeley, California 94720, United States
| | - Abby L Parrill
- Department of Chemistry, University of Memphis, Memphis, Tennessee 38152, United States
| | - Gabor J Tigyi
- Department of Physiology, College of Medicine, University of Tennessee Health Science Center (UTHSC), Memphis, Tennessee 39163, United States
| | - Dirk Trauner
- Department of Chemistry, New York University, New York, New York 10003, United States
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Guillot E, Le Bail JC, Paul P, Fourgous V, Briand P, Partiseti M, Cornet B, Janiak P, Philippo C. Lysophosphatidic Acid Receptor Agonism: Discovery of Potent Nonlipid Benzofuran Ethanolamine Structures. J Pharmacol Exp Ther 2020; 374:283-294. [PMID: 32409422 DOI: 10.1124/jpet.120.265454] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Accepted: 05/11/2020] [Indexed: 02/06/2023] Open
Abstract
Lysophosphatidic acid (LPA) is the natural ligand for two phylogenetically distinct families of receptors (LPA1-3, LPA4-6) whose pathways control a variety of physiologic and pathophysiological responses. Identifying the benefit of balanced activation/repression of LPA receptors has always been a challenge because of the high lability of LPA and the limited availability of selective and/or stable agonists. In this study, we document the discovery of small benzofuran ethanolamine derivatives (called CpX and CpY) behaving as LPA1-3 agonists. Initially found as rabbit urethra contracting agents, their elusive receptors were identified from [35S]GTPγS-binding and β-arrestin2 recruitment investigations and then confirmed by [3H]CpX binding studies (urethra, hLPA1-2 membranes). Both compounds induced a calcium response in hLPA1-3 cells within a range of 0.4-1.5-log lower potency as compared with LPA. The contractions of rabbit urethra strips induced by these compounds perfectly matched binding affinities with values reaching the two-digit nanomolar level. The antagonist, KI16425, dose-dependently antagonized CpX-induced contractions in agreement with its affinity profile (LPA1≥LPA3>>LPA2). The most potent agonist, CpY, doubled intraurethral pressure in anesthetized female rats at 3 µg/kg i.v. Alternatively, CpX was shown to inhibit human preadipocyte differentiation, a process totally reversed by KI16425. Together with original molecular docking data, these findings clearly established these molecules as potent agonists of LPA1-3 and consolidated the pivotal role of LPA1 in urethra/prostate contraction as well as in fat cell development. The discovery of these unique and less labile LPA1-3 agonists would offer new avenues to investigate the roles of LPA receptors. SIGNIFICANCE STATEMENT: We report the identification of benzofuran ethanolamine derivatives behaving as potent selective nonlipid LPA1-3 agonists and shown to alter urethra muscle contraction or preadipocyte differentiation. Unique at this level of potency, selectivity, and especially stability, compared with lysophosphatidic acid, they represent more appropriate tools for investigating the physiological roles of lysophosphatidic acid receptors and starting point for optimization of drug candidates for therapeutic applications.
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Affiliation(s)
- Etienne Guillot
- Diabetes and Cardiovascular Unit, Sanofi R&D, Chilly-Mazarin, France (E.G., J.C.L.B., P.B., P.J.); Global Research Portfolio and Project Management, Sanofi R&D, Chilly-Mazarin, France (C.P.); Translational Science Unit, Sanofi R&D, Chilly-Mazarin, France (P.P., V.F.); In-silico design, Chilly-Mazarin, France (B.C.); and Integrated Drug Discovery, Sanofi R&D, Vitry-Sur-Seine, France (M.P.)
| | - Jean-Christophe Le Bail
- Diabetes and Cardiovascular Unit, Sanofi R&D, Chilly-Mazarin, France (E.G., J.C.L.B., P.B., P.J.); Global Research Portfolio and Project Management, Sanofi R&D, Chilly-Mazarin, France (C.P.); Translational Science Unit, Sanofi R&D, Chilly-Mazarin, France (P.P., V.F.); In-silico design, Chilly-Mazarin, France (B.C.); and Integrated Drug Discovery, Sanofi R&D, Vitry-Sur-Seine, France (M.P.)
| | - Pascal Paul
- Diabetes and Cardiovascular Unit, Sanofi R&D, Chilly-Mazarin, France (E.G., J.C.L.B., P.B., P.J.); Global Research Portfolio and Project Management, Sanofi R&D, Chilly-Mazarin, France (C.P.); Translational Science Unit, Sanofi R&D, Chilly-Mazarin, France (P.P., V.F.); In-silico design, Chilly-Mazarin, France (B.C.); and Integrated Drug Discovery, Sanofi R&D, Vitry-Sur-Seine, France (M.P.)
| | - Valérie Fourgous
- Diabetes and Cardiovascular Unit, Sanofi R&D, Chilly-Mazarin, France (E.G., J.C.L.B., P.B., P.J.); Global Research Portfolio and Project Management, Sanofi R&D, Chilly-Mazarin, France (C.P.); Translational Science Unit, Sanofi R&D, Chilly-Mazarin, France (P.P., V.F.); In-silico design, Chilly-Mazarin, France (B.C.); and Integrated Drug Discovery, Sanofi R&D, Vitry-Sur-Seine, France (M.P.)
| | - Pascale Briand
- Diabetes and Cardiovascular Unit, Sanofi R&D, Chilly-Mazarin, France (E.G., J.C.L.B., P.B., P.J.); Global Research Portfolio and Project Management, Sanofi R&D, Chilly-Mazarin, France (C.P.); Translational Science Unit, Sanofi R&D, Chilly-Mazarin, France (P.P., V.F.); In-silico design, Chilly-Mazarin, France (B.C.); and Integrated Drug Discovery, Sanofi R&D, Vitry-Sur-Seine, France (M.P.)
| | - Michel Partiseti
- Diabetes and Cardiovascular Unit, Sanofi R&D, Chilly-Mazarin, France (E.G., J.C.L.B., P.B., P.J.); Global Research Portfolio and Project Management, Sanofi R&D, Chilly-Mazarin, France (C.P.); Translational Science Unit, Sanofi R&D, Chilly-Mazarin, France (P.P., V.F.); In-silico design, Chilly-Mazarin, France (B.C.); and Integrated Drug Discovery, Sanofi R&D, Vitry-Sur-Seine, France (M.P.)
| | - Bruno Cornet
- Diabetes and Cardiovascular Unit, Sanofi R&D, Chilly-Mazarin, France (E.G., J.C.L.B., P.B., P.J.); Global Research Portfolio and Project Management, Sanofi R&D, Chilly-Mazarin, France (C.P.); Translational Science Unit, Sanofi R&D, Chilly-Mazarin, France (P.P., V.F.); In-silico design, Chilly-Mazarin, France (B.C.); and Integrated Drug Discovery, Sanofi R&D, Vitry-Sur-Seine, France (M.P.)
| | - Philip Janiak
- Diabetes and Cardiovascular Unit, Sanofi R&D, Chilly-Mazarin, France (E.G., J.C.L.B., P.B., P.J.); Global Research Portfolio and Project Management, Sanofi R&D, Chilly-Mazarin, France (C.P.); Translational Science Unit, Sanofi R&D, Chilly-Mazarin, France (P.P., V.F.); In-silico design, Chilly-Mazarin, France (B.C.); and Integrated Drug Discovery, Sanofi R&D, Vitry-Sur-Seine, France (M.P.)
| | - Christophe Philippo
- Diabetes and Cardiovascular Unit, Sanofi R&D, Chilly-Mazarin, France (E.G., J.C.L.B., P.B., P.J.); Global Research Portfolio and Project Management, Sanofi R&D, Chilly-Mazarin, France (C.P.); Translational Science Unit, Sanofi R&D, Chilly-Mazarin, France (P.P., V.F.); In-silico design, Chilly-Mazarin, France (B.C.); and Integrated Drug Discovery, Sanofi R&D, Vitry-Sur-Seine, France (M.P.)
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Kawaguchi M, Okabe T, Okudaira S, Hama K, Kano K, Nishimasu H, Nakagawa H, Ishitani R, Kojima H, Nureki O, Aoki J, Nagano T. Identification of Potent In Vivo Autotaxin Inhibitors that Bind to Both Hydrophobic Pockets and Channels in the Catalytic Domain. J Med Chem 2020; 63:3188-3204. [PMID: 32134652 DOI: 10.1021/acs.jmedchem.9b01967] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Autotaxin (ATX, also known as ENPP2) is a predominant lysophosphatidic acid (LPA)-producing enzyme in the body, and LPA regulates various physiological functions, such as angiogenesis and wound healing, as well as pathological functions, including proliferation, metastasis, and fibrosis, via specific LPA receptors. Therefore, the ATX-LPA axis is a promising therapeutic target for dozens of diseases, including cancers, pulmonary and liver fibroses, and neuropathic pain. Previous structural studies revealed that the catalytic domain of ATX has a hydrophobic pocket and a hydrophobic channel; these serve to recognize the substrate, lysophosphatidylcholine (LPC), and deliver generated LPA to LPA receptors on the plasma membrane. Most reported ATX inhibitors bind to either the hydrophobic pocket or the hydrophobic channel. Herein, we present a unique ATX inhibitor that binds mainly to the hydrophobic pocket and also partly to the hydrophobic channel, inhibiting ATX activity with high potency and selectivity in vitro and in vivo. Notably, our inhibitor can rescue the cardia bifida (two hearts) phenotype in ATX-overexpressing zebrafish embryos.
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Affiliation(s)
- Mitsuyasu Kawaguchi
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.,Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1 Tanabe-dori, Mizuho-ku, Nagoya, Aichi 467-8603, Japan
| | - Takayoshi Okabe
- Drug Discovery Initiative, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Shinichi Okudaira
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - Kotaro Hama
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - Kuniyuki Kano
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - Hiroshi Nishimasu
- Graduate School of Biological Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Hidehiko Nakagawa
- Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1 Tanabe-dori, Mizuho-ku, Nagoya, Aichi 467-8603, Japan
| | - Ryuichiro Ishitani
- Graduate School of Biological Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Hirotatsu Kojima
- Drug Discovery Initiative, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Osamu Nureki
- Graduate School of Biological Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Junken Aoki
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - Tetsuo Nagano
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.,Drug Discovery Initiative, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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Olianas MC, Dedoni S, Onali P. Antidepressants induce profibrotic responses via the lysophosphatidic acid receptor LPA 1. Eur J Pharmacol 2020; 873:172963. [PMID: 32007501 DOI: 10.1016/j.ejphar.2020.172963] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 12/16/2019] [Accepted: 01/27/2020] [Indexed: 12/29/2022]
Abstract
Preclinical and clinical studies have indicated that antidepressants can promote inflammation and fibrogenesis, particularly in the lung, by mechanisms not fully elucidated. We have previously shown that different classes of antidepressants can activate the lysophosphatidic acid (LPA) receptor LPA1, a major pathogenetic mediator of tissue fibrosis. The aim of the present study was to investigate whether in cultured human dermal and lung fibroblasts antidepressants could trigger LPA1-mediated profibrotic responses. In both cell types amitriptyline, clomipramine and mianserin mimicked the ability of LPA to induce the phosphorylation/activation of extracellular signal -regulated kinases 1 and 2 (ERK1/2), which was blocked by the selective LPA1 receptor antagonist AM966 and the LPA1/3 antagonist Ki16425. Antidepressant-induced ERK1/2 stimulation was absent in fibroblasts stably depleted of LPA1 by short hairpin RNA transfection and was prevented by pertussis toxin, an uncoupler of receptors from Gi/o proteins. Like LPA, antidepressants stimulated fibroblasts proliferation and this effect was blocked by either AM966 or the MEK1/2 inhibitor PD98059. Moreover, by acting through LPA1 antidepressants induced the expression of α-smooth muscle actin (α-SMA), a marker of myofibroblast differentiation, and caused an ERK1/2-dependent increase in the cellular levels of transforming growth factor-β (TGF-β)1, a potent fibrogenic cytokine. Pharmacological blockade of TGF-β receptor type 1 prevented antidepressant- and LPA-induced α-SMA expression. These data indicate that in human dermal and lung fibroblasts different antidepressants can induce proliferative and differentiating responses by activating the LPA1 receptor coupled to ERK1/2 signalling and suggest that this property may contribute to the promotion of tissue fibrosis by these drugs.
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Choi SH, Lee NE, Cho HJ, Lee RM, Rhim H, Kim HC, Han M, Lee EH, Park J, Nah SY. Gintonin facilitates brain delivery of donepezil, a therapeutic drug for Alzheimer disease, through lysophosphatidic acid 1/3 and vascular endothelial growth factor receptors. J Ginseng Res 2019; 45:264-272. [PMID: 33841007 PMCID: PMC8020287 DOI: 10.1016/j.jgr.2019.12.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Revised: 11/25/2019] [Accepted: 12/04/2019] [Indexed: 11/17/2022] Open
Abstract
Background Gintonin is a ginseng-derived exogenous G-protein–coupled lysophosphatidic acid (LPA) receptor ligand, which exhibits in vitro and in vivo functions against Alzheimer disease (AD) through lysophosphatidic acid 1/3 receptors. A recent study demonstrated that systemic treatment with gintonin enhances paracellular permeability of the blood–brain barrier (BBB) through the LPA1/3 receptor. However, little is known about whether gintonin can enhance brain delivery of donepezil (DPZ) (Aricept), which is a representative cognition-improving drug used in AD clinics. In the present study, we examined whether systemic administration of gintonin can stimulate brain delivery of DPZ. Methods We administered gintonin and DPZ alone or coadministered gintonin with DPZ intravenously or orally to rats. Then we collected the cerebral spinal fluid (CSF) and serum and determined the DPZ concentration through liquid chromatography-tandem mass spectrometry (LC-MS/MS) analysis. Results Intravenous, but not oral, coadministration of gintonin with DPZ increased the CSF concentration of DPZ in a concentration- and time-dependent manner. Gintonin-mediated enhancement of brain delivery of DPZ was blocked by Ki16425, a LPA1/3 receptor antagonist. Coadministration of vascular endothelial growth factor (VEGF) + gintonin with DPZ similarly increased CSF DPZ concentration. However, gintonin-mediated enhancement of brain delivery of DPZ was blocked by axitinip, a VEGF receptor antagonist. Mannitol, a BBB disrupting agent that increases the BBB permeability, enhanced gintonin-mediated enhancement of brain delivery of DPZ. Conclusions We found that intravenous, but not oral, coadministration of gintonin facilitates brain delivery of DPZ from plasma via LPA1/3 and VEGF receptors. Gintonin is a potential candidate as a ginseng-derived novel agent for the brain delivery of DPZ for treatment of patients with AD.
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Affiliation(s)
- Sun-Hye Choi
- Ginsentology Research Laboratory and Department of Physiology, College of Veterinary Medicine, Konkuk University, Seoul, 05029, South Korea
| | - Na-Eun Lee
- Ginsentology Research Laboratory and Department of Physiology, College of Veterinary Medicine, Konkuk University, Seoul, 05029, South Korea
| | - Hee-Jung Cho
- Ginsentology Research Laboratory and Department of Physiology, College of Veterinary Medicine, Konkuk University, Seoul, 05029, South Korea
| | - Ra Mi Lee
- Ginsentology Research Laboratory and Department of Physiology, College of Veterinary Medicine, Konkuk University, Seoul, 05029, South Korea
| | - Hyewhon Rhim
- Center for Neuroscience, Korea Institute of Science and Technology, Seoul, 02792, South Korea
| | - Hyoung-Chun Kim
- Neuropsychopharmacology and Toxicology program, College of Pharmacy, Kangwon National University, Chuncheon, 24341, South Korea
| | - Mun Han
- Medical Device Development Center, Daegu-Gyeongbuk Medical Innovation Foundation, Daegu, 41061, South Korea
| | - Eun-Hee Lee
- Medical Device Development Center, Daegu-Gyeongbuk Medical Innovation Foundation, Daegu, 41061, South Korea
| | - Juyoung Park
- Medical Device Development Center, Daegu-Gyeongbuk Medical Innovation Foundation, Daegu, 41061, South Korea
| | - Seung-Yeol Nah
- Ginsentology Research Laboratory and Department of Physiology, College of Veterinary Medicine, Konkuk University, Seoul, 05029, South Korea
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47
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Zeng H, Castillo-Cabrera J, Manser M, Lu B, Yang Z, Strande V, Begue D, Zamponi R, Qiu S, Sigoillot F, Wang Q, Lindeman A, Reece-Hoyes JS, Russ C, Bonenfant D, Jiang X, Wang Y, Cong F. Genome-wide CRISPR screening reveals genetic modifiers of mutant EGFR dependence in human NSCLC. eLife 2019; 8:50223. [PMID: 31741433 PMCID: PMC6927754 DOI: 10.7554/elife.50223] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Accepted: 11/04/2019] [Indexed: 12/24/2022] Open
Abstract
EGFR-mutant NSCLCs frequently respond to EGFR tyrosine kinase inhibitors (TKIs). However, the responses are not durable, and the magnitude of tumor regression is variable, suggesting the existence of genetic modifiers of EGFR dependency. Here, we applied a genome-wide CRISPR-Cas9 screening to identify genetic determinants of EGFR TKI sensitivity and uncovered putative candidates. We show that knockout of RIC8A, essential for G-alpha protein activation, enhanced EGFR TKI-induced cell death. Mechanistically, we demonstrate that RIC8A is a positive regulator of YAP signaling, activation of which rescued the EGFR TKI sensitizing phenotype resulting from RIC8A knockout. We also show that knockout of ARIH2, or other components in the Cullin-5 E3 complex, conferred resistance to EGFR inhibition, in part by promoting nascent protein synthesis through METAP2. Together, these data uncover a spectrum of previously unidentified regulators of EGFR TKI sensitivity in EGFR-mutant human NSCLC, providing insights into the heterogeneity of EGFR TKI treatment responses. Cancer is caused by cells growing and dividing uncontrollably as a result of mutations in certain genes. Many human lung cancers have a mutation in the gene that makes the protein EGFR. In healthy cells, EGFR allows a cell to respond to chemical signals that encourage healthy growth. In cancer, the altered EGFR is always on, which allows the cell to rapidly grow without any control, resulting in cancer. One approach to treating these cancers is with drugs that block the activity of mutant EGFR. Although these drugs have been very successful, they do not always succeed in completely treating the cancer. This is because over time the cancer cells can become resistant to the drug and start forming new tumors. One way that this can happen is if random mutations lead to changes in other proteins that make the drug less effective or stop it from accessing the EGFR proteins. However, it is unclear how other proteins in cancer cells affect the response to these EGFR inhibiting drugs. Now, Zeng et al. have used gene editing to systematically remove every protein from human lung cancer cells grown in the laboratory to see how this affects resistance to EGFR inhibitor treatment. This revealed that a number of different proteins could change how cancer cells responded to the drug. For instance, cells lacking the protein RIC8A were more sensitive to EGFR inhibitors and less likely to develop resistance. This is because loss of RIC8A turns down a key cell survival pathway in cancer cells. Whereas, cancer cells lacking the ARIH2 protein were able to produce more proteins that are needed for cancer cell growth, which resulted in them having increased resistance to EGFR inhibitors. The proteins identified in this study could be used to develop new drugs that improve the effectiveness of EGFR inhibitors. Understanding how cancer cells respond to EGFR inhibitor treatment could help determine how likely a patient is to develop resistance to these drugs.
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Affiliation(s)
- Hao Zeng
- Chemical Biology and Therapeutics, Novartis Institutes for Biomedical Research, Cambridge, United States
| | - Johnny Castillo-Cabrera
- Chemical Biology and Therapeutics, Novartis Institutes for Biomedical Research, Cambridge, United States
| | - Mika Manser
- Oncology Disease Area, Novartis Institutes for Biomedical Research, Cambridge, United States
| | - Bo Lu
- Chemical Biology and Therapeutics, Novartis Institutes for Biomedical Research, Cambridge, United States
| | - Zinger Yang
- Chemical Biology and Therapeutics, Novartis Institutes for Biomedical Research, Cambridge, United States
| | - Vaik Strande
- Analytical Sciences and Imaging, Novartis Institutes for Biomedical Research, Basel, Switzerland
| | - Damien Begue
- Analytical Sciences and Imaging, Novartis Institutes for Biomedical Research, Basel, Switzerland
| | - Raffaella Zamponi
- Chemical Biology and Therapeutics, Novartis Institutes for Biomedical Research, Cambridge, United States
| | - Shumei Qiu
- Oncology Disease Area, Novartis Institutes for Biomedical Research, Cambridge, United States
| | - Frederic Sigoillot
- Chemical Biology and Therapeutics, Novartis Institutes for Biomedical Research, Cambridge, United States
| | - Qiong Wang
- Chemical Biology and Therapeutics, Novartis Institutes for Biomedical Research, Cambridge, United States
| | - Alicia Lindeman
- Chemical Biology and Therapeutics, Novartis Institutes for Biomedical Research, Cambridge, United States
| | - John S Reece-Hoyes
- Chemical Biology and Therapeutics, Novartis Institutes for Biomedical Research, Cambridge, United States
| | - Carsten Russ
- Chemical Biology and Therapeutics, Novartis Institutes for Biomedical Research, Cambridge, United States
| | - Debora Bonenfant
- Analytical Sciences and Imaging, Novartis Institutes for Biomedical Research, Basel, Switzerland
| | - Xiaomo Jiang
- Chemical Biology and Therapeutics, Novartis Institutes for Biomedical Research, Cambridge, United States
| | - Youzhen Wang
- Oncology Disease Area, Novartis Institutes for Biomedical Research, Cambridge, United States
| | - Feng Cong
- Chemical Biology and Therapeutics, Novartis Institutes for Biomedical Research, Cambridge, United States
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48
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Juin A, Spence HJ, Martin KJ, McGhee E, Neilson M, Cutiongco MFA, Gadegaard N, Mackay G, Fort L, Lilla S, Kalna G, Thomason P, Koh YWH, Norman JC, Insall RH, Machesky LM. N-WASP Control of LPAR1 Trafficking Establishes Response to Self-Generated LPA Gradients to Promote Pancreatic Cancer Cell Metastasis. Dev Cell 2019; 51:431-445.e7. [PMID: 31668663 PMCID: PMC6863394 DOI: 10.1016/j.devcel.2019.09.018] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Revised: 07/23/2019] [Accepted: 09/24/2019] [Indexed: 02/07/2023]
Abstract
Pancreatic ductal adenocarcinoma is one of the most invasive and metastatic cancers and has a dismal 5-year survival rate. We show that N-WASP drives pancreatic cancer metastasis, with roles in both chemotaxis and matrix remodeling. lysophosphatidic acid, a signaling lipid abundant in blood and ascites fluid, is both a mitogen and chemoattractant for cancer cells. Pancreatic cancer cells break lysophosphatidic acid down as they respond to it, setting up a self-generated gradient driving tumor egress. N-WASP-depleted cells do not recognize lysophosphatidic acid gradients, leading to altered RhoA activation, decreased contractility and traction forces, and reduced metastasis. We describe a signaling loop whereby N-WASP and the endocytic adapter SNX18 promote lysophosphatidic acid-induced RhoA-mediated contractility and force generation by controlling lysophosphatidic acid receptor recycling and preventing degradation. This chemotactic loop drives collagen remodeling, tumor invasion, and metastasis and could be an important target against pancreatic cancer spread.
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Affiliation(s)
| | | | | | | | | | - Marie F A Cutiongco
- Division of Biomedical Engineering, School of Engineering, University of Glasgow, Glasgow G12 8LT, UK
| | - Nikolaj Gadegaard
- Division of Biomedical Engineering, School of Engineering, University of Glasgow, Glasgow G12 8LT, UK
| | | | - Loic Fort
- CRUK Beatson Institute, Glasgow G61 1BD, UK
| | | | | | | | | | - Jim C Norman
- CRUK Beatson Institute, Glasgow G61 1BD, UK; Institute of Cancer Sciences, University of Glasgow, Glasgow G61 1BD, UK
| | - Robert H Insall
- CRUK Beatson Institute, Glasgow G61 1BD, UK; Institute of Cancer Sciences, University of Glasgow, Glasgow G61 1BD, UK
| | - Laura M Machesky
- CRUK Beatson Institute, Glasgow G61 1BD, UK; Institute of Cancer Sciences, University of Glasgow, Glasgow G61 1BD, UK.
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49
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Lummis NC, Sánchez-Pavón P, Kennedy G, Frantz AJ, Kihara Y, Blaho VA, Chun J. LPA 1/3 overactivation induces neonatal posthemorrhagic hydrocephalus through ependymal loss and ciliary dysfunction. Sci Adv 2019; 5:eaax2011. [PMID: 31633020 PMCID: PMC6785248 DOI: 10.1126/sciadv.aax2011] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Accepted: 09/14/2019] [Indexed: 05/05/2023]
Abstract
Posthemorrhagic hydrocephalus (PHH) in premature infants is a common neurological disorder treated with invasive neurosurgical interventions. Patients with PHH lack effective therapeutic interventions and suffer chronic comorbidities. Here, we report a murine lysophosphatidic acid (LPA)-induced postnatal PHH model that maps neurodevelopmentally to premature infants, a clinically accessible high-risk population, and demonstrates ventriculomegaly with increased intracranial pressure. Administration of LPA, a blood-borne signaling lipid, acutely disrupted the ependymal cells that generate CSF flow, which was followed by cell death, phagocytosis, and ventricular surface denudation. This mechanism is distinct from a previously reported fetal model that induces PHH through developmental alterations. Analyses of LPA receptor-null mice identified LPA1 and LPA3 as key mediators of PHH. Pharmacological blockade of LPA1 prevented PHH in LPA-injected animals, supporting the medical tractability of LPA receptor antagonists in preventing PHH and negative CNS sequelae in premature infants.
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MESH Headings
- Animals
- Animals, Newborn
- Apoptosis
- Brain/metabolism
- Brain/pathology
- Calcium-Binding Proteins/metabolism
- Disease Models, Animal
- Ependyma/cytology
- Ependyma/metabolism
- Ependymoglial Cells/cytology
- Ependymoglial Cells/metabolism
- Infant, Premature, Diseases/chemically induced
- Infant, Premature, Diseases/pathology
- Infant, Premature, Diseases/prevention & control
- Isoxazoles/pharmacology
- Isoxazoles/therapeutic use
- Lysophospholipids/toxicity
- Macrophages/cytology
- Macrophages/immunology
- Macrophages/metabolism
- Mice
- Mice, Inbred BALB C
- Mice, Inbred C57BL
- Microfilament Proteins/metabolism
- Phagocytosis
- Propionates/pharmacology
- Propionates/therapeutic use
- Receptors, Lysophosphatidic Acid/antagonists & inhibitors
- Receptors, Lysophosphatidic Acid/genetics
- Receptors, Lysophosphatidic Acid/metabolism
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Affiliation(s)
- Nicole C. Lummis
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
- Biomedical Sciences Graduate Program, University of California San Diego School of Medicine, La Jolla, CA, USA
| | - Paloma Sánchez-Pavón
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
- Graduate School of Biomedical Sciences, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
| | - Grace Kennedy
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
| | - Aaron J. Frantz
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
- Biomedical Sciences Graduate Program, University of California San Diego School of Medicine, La Jolla, CA, USA
| | - Yasuyuki Kihara
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
| | - Victoria A. Blaho
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
| | - Jerold Chun
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
- Corresponding author.
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50
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Mao G, Smyth SS, Morris AJ. Regulation of PLPP3 gene expression by NF-κB family transcription factors. J Biol Chem 2019; 294:14009-14019. [PMID: 31362988 DOI: 10.1074/jbc.ra119.009002] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2019] [Revised: 07/26/2019] [Indexed: 01/15/2023] Open
Abstract
Lipid phosphate phosphatase 3 (LPP3), encoded by the PLPP3 gene, is an integral membrane enzyme that dephosphorylates phosphate esters of glycero- and sphingophospholipids. Cell surface LPP3 can terminate the signaling actions of bioactive lysophosphatidic acid (LPA) and sphingosine 1 phosphate, which likely explains its role in developmental angiogenesis, vascular injury responses, and cell migration. Heritable variants in the final intron PLPP3 associate with interindividual variability in coronary artery disease risk that may result from disruption of enhancer sequences that normally act in cis to increase expression of the gene. However, the mechanisms regulating PLPP3 expression are not well understood. We show that the human PLPP3 promoter contains three functional NF-κB response elements. All of these are required for maximal induction of PLPP3 promoter activity in reporter assays. The identified sequences recruit RelA and RelB components of the NF-κB transcription complex to chromatin, and these transcription factors bind to the identified target sequences in two different cell types. LPA promotes binding of Rel family transcription factors to the PLPP3 promoter and increases PLPP3 gene expression through mechanisms that are attenuated by an NF-κB inhibitor, LPA receptor antagonists, and inhibitors of phosphoinositide 3 kinase. These findings indicate that up-regulation of PLPP3 during inflammation and atherosclerosis results from canonical activation of the NF-κB signaling cascade to increase PLPP3 expression through nuclear import and binding of RelA and RelB transcription factors to the PLPP3 promoter and suggest a mechanism by which the LPP3 substrate, LPA, can regulate PLPP3 expression.
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Affiliation(s)
- Guogen Mao
- Division of Cardiovascular Medicine, Gill Heart and Vascular Institute, University of Kentucky College of Medicine, Lexington, Kentucky 40536.,Lexington Veterans Affairs Medical Center, Lexington, Kentucky 40536
| | - Susan S Smyth
- Division of Cardiovascular Medicine, Gill Heart and Vascular Institute, University of Kentucky College of Medicine, Lexington, Kentucky 40536.,Lexington Veterans Affairs Medical Center, Lexington, Kentucky 40536
| | - Andrew J Morris
- Division of Cardiovascular Medicine, Gill Heart and Vascular Institute, University of Kentucky College of Medicine, Lexington, Kentucky 40536 .,Lexington Veterans Affairs Medical Center, Lexington, Kentucky 40536
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