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Yamamoto M, Takai M, Yashiro N, Hayasaka H, Tsujiuchi T. Lysophosphatidic acid (LPA) receptor-mediated signaling regulates hypoxia-induced biological functions of lymphatic endothelial cells. Biochem Biophys Res Commun 2024; 715:149982. [PMID: 38676998 DOI: 10.1016/j.bbrc.2024.149982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2024] [Revised: 04/18/2024] [Accepted: 04/22/2024] [Indexed: 04/29/2024]
Abstract
The tumor microenvironment is an extremely complex composed of cancer cells and various non-cancer cells, including lymphatic endothelial cells. Lysophosphatidic acid (LPA) receptors (LPA1 to LPA6) activate a variety of malignant properties in human malignancies. In the present study, we examined the roles of LPA receptor-mediated signaling in biological responses of lymphatic endothelial SVEC4-10 cells induced by hypoxia. Lpar1, Lpar2 and Lpar3 expressions were decreased in SVEC4-10 cells cultured at hypoxic conditions (1 % O2). LPA had no impact on the cell growth activity of SVEC4-10 cells in 21 % O2 culture conditions. Conversely, the cell growth activity of SVEC4-10 cells in 1 % O2 culture conditions was reduced by LPA. The cell motile activity of SVEC4-10 cells was elevated by 1 % O2 culture conditions. GRI-977143 (LPA2 agonist) and (2S)-OMPT (LPA3 agonist) stimulated SVEC4-10 cell motility as well as AM966 (LPA1 antagonist). In tube formation assay, the tube formation of SVEC4-10 cells in 1 % O2 culture conditions was markedly increased, in comparison with 21 % O2. GRI-977143 and (2S)-OMPT elevated the tube formation of SVEC4-10 cells. Furthermore, the tube formation of SVEC4-10 cells was increased by AM966. These results suggest that LPA receptor-mediated signaling contributes to the modulation of hypoxic-induced biological functions of lymphatic endothelial cells.
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Affiliation(s)
- Mao Yamamoto
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka, 577-8502, Japan
| | - Miwa Takai
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka, 577-8502, Japan
| | - Narumi Yashiro
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka, 577-8502, Japan
| | - Haruko Hayasaka
- Laboratory of Immune Molecular Function, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka, 577-8502, Japan
| | - Toshifumi Tsujiuchi
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka, 577-8502, Japan.
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Takai M, Yamamoto M, Yashiro N, Tsujiuchi T. Involvement of lysophosphatidic acid (LPA) receptor-mediated signaling in breast cancer cell functions by long-term tamoxifen treatment under hypoxic and estrogen-deprived conditions. Pathol Res Pract 2024; 260:155385. [PMID: 38875757 DOI: 10.1016/j.prp.2024.155385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2024] [Accepted: 05/31/2024] [Indexed: 06/16/2024]
Abstract
BACKGROUND Tamoxifen (TAM) is a selective estrogen receptor modulator and has anti-estrogenic activity. Breast cancer cells acquire drug resistance to TAM as a consequence of long-term treatment. Lysophosphatidic acid (LPA) receptor-mediated signaling contributes to the promotion of tumor progression. This study aimed to evaluate the role of LPA receptors in the modulation of biological functions by long-term TAM treatment in breast cancer MCF-7 cells under hypoxic and estrogen-deprived conditions. METHODS Long-term TAM treated (MCF-TAM) cells were generated from MCF-7 cells. Cells were cultured in estrogen-free medium at 1 % O2. LPA receptor expressions were measured by quantitative real-time RT-PCR analysis. Cell motile activity was investigated using Cell Culture Inserts. The CCK-8 kit was used to determine the cell proliferation rate. RESULTS LPAR1 and LPAR3 expressions were elevated in MCF-TAM cells. MCF-TAM cell motility was enhanced by culturing at 1 % O2, compared with MCF-7 cells. When cells were cultured in estrogen-deprived medium at 1 % O2, the cell proliferation rate of MCF-TAM cells was significantly higher than that of MCF-7 cells. CONCLUSION These results suggest that LPA receptor-mediated signaling plays an important role in the acquisition of malignant properties in long-term TAM treated MCF-7 cells under hypoxic and estrogen-deprived conditions.
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Affiliation(s)
- Miwa Takai
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Mao Yamamoto
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Narumi Yashiro
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Toshifumi Tsujiuchi
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan.
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Ikeda H, Takai M, Yashiro N, Amano Y, Hara K, Yamamoto M, Tsujiuchi T. Regulation of cellular responses to X-ray irradiation through the activation of lysophosphatidic acid (LPA) receptor-3 (LPA 3) and LPA 2 in osteosarcoma cells. Pathol Res Pract 2024; 257:155293. [PMID: 38615508 DOI: 10.1016/j.prp.2024.155293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Accepted: 04/04/2024] [Indexed: 04/16/2024]
Abstract
Lysophosphatidic acid (LPA) binds to its specific G protein-coupled LPA receptors (LPA1 to LPA6), resulting in the activation of various cellular functions. LPA receptor-mediated signaling facilitates tumor progression in human malignancies. In the present study, we investigated whether LPA receptor-mediated signaling contributes to cellular responses to X-ray irradiation in osteosarcoma MG-63 cells. After X-ray irradiation (2, 4 and 8 Gy), LPAR2 and LPAR3 expression levels in MG-63 cells were significantly elevated in a dose-dependent manner, but no change of LPAR1 expression level was observed. The cell growth activities of MG-63 cells irradiated with X-rays (2, 4 and 8 Gy) were reduced by LPA. Conversely, LPA3 agonist (2 S)-OMPT enhanced the cell growth activities of X-ray irradiated MG-63 cells. The cell movement of MG-63 cells exposed to X-ray irradiation (8 Gy) was inhibited by (2 S)OMPT. In cell survival assay, (2 S)-OMPT suppressed the cell survival to cisplatin (CDDP) of MG-63 cells irradiated with X-rays (8 Gy). The cell survival to CDDP of X-ray irradiated cells was elevated by LPA3 knockdown. Moreover, we evaluated the effects of LPA2 on the cell survival to CDDP of MG-63 cells exposed to X-ray irradiation (8 Gy). The cell survival to CDDP of X-ray irradiated cells was increased by LPA2 agonist GRI-977143 and reduced by LPA2 knockdown. These results suggest that LPA receptor-signaling participates in the modulation of cellular functions induced by X-ray irradiation in osteosarcoma cells.
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Affiliation(s)
- Hiroko Ikeda
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Miwa Takai
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Narumi Yashiro
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Yuka Amano
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Koki Hara
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Mao Yamamoto
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Toshifumi Tsujiuchi
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan.
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Takai M, Yashiro N, Hara K, Amano Y, Yamamoto M, Tsujiuchi T. Roles of lysophosphatidic acid (LPA) receptor-mediated signaling in cellular functions modulated by endothelial cells in pancreatic cancer cells under hypoxic conditions. Pathol Res Pract 2024; 255:155192. [PMID: 38367602 DOI: 10.1016/j.prp.2024.155192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Accepted: 02/02/2024] [Indexed: 02/19/2024]
Abstract
BACKGROUND In the tumor environment, malignant characteristics of cancer cells are promoted by stromal cells under hypoxia. It is unknown whether lysophosphatidic acid (LPA) receptor-mediated signaling is involved in the regulation of cellular functions by endothelial cells in pancreatic cancer cells under hypoxic conditions. METHODS Pancreatic cancer (PANC-1) cells were co-cultured with endothelial (F2) cells and F2 cell supernatants at 21% and 1% O2. The Cell Culture Insert was used to assess the cell motile activity. The cell growth and viability to cisplatin (CDDP) were measured, using the Cell Counting Kit-8. RESULTS LPA receptor expression levels were changed in PANC-1 cells co-cultured with F2 cells at 21% and 1% O2. The cell motile activities of PANC-1 cells co-cultured with F2 cells at 21% and 1% O2 were markedly elevated, compared with PANC-1 cells alone. The cell viabilities to CDDP of PANC-1 cells co-cultured with F2 cell supernatants at 21% and 1% O2 were regulated by the activation of LPA receptors. CONCLUSION These results suggest that LPA receptor-mediated signaling plays an important role in the modulation of pancreatic cancer cell functions by endothelial cells under hypoxic conditions.
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Affiliation(s)
- Miwa Takai
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Narumi Yashiro
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Koki Hara
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Yuka Amano
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Mao Yamamoto
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Toshifumi Tsujiuchi
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan.
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Abdelwahid MS, Ohsawa K, Uwamizu A, Kano K, Aoki J, Doi T. Synthesis and Biological Evaluation of Lysophosphatidic Acid Analogues Using Conformational Restriction and Bioisosteric Replacement Strategies. ACS OMEGA 2023; 8:49278-49288. [PMID: 38162765 PMCID: PMC10753746 DOI: 10.1021/acsomega.3c07668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 11/08/2023] [Accepted: 11/13/2023] [Indexed: 01/03/2024]
Abstract
Lysophosphatidic acid (LPA) is a key player in many physiological and pathophysiological processes. The biological activities of LPA are mediated through interactions with-at least-six subtypes of G-protein-coupled receptors (GPCRs) named LPA1-6. Developing a pharmacological tool molecule that activates LPA subtype receptors selectively will allow a better understanding of their specific physiological roles. Here, we designed and synthesized conformationally restricted 25 1-oleoyl LPA analogues MZN-001 to MZN-025 by incorporating its glycerol linker into dihydropyran, tetrahydropyran, and pyrrolidine rings and variating the lipophilic chain. The agonistic activities of these compounds were evaluated using the TGFα shedding assay. Overall, the synthesized analogues exhibited significantly reduced agonistic activities toward LPA1, LPA2, and LPA6, while demonstrating potent activities toward LPA3, LPA4, and LPA5 compared to the parent LPA. Specifically, MZN-010 showed more than 10 times greater potency (EC50 = 4.9 nM) than the standard 1-oleoyl LPA (EC50 = 78 nM) toward LPA5 while exhibiting significantly lower activity on LPA1, LPA2, and LPA6 and comparable potency toward LPA3 and LPA4. Based on the MZN-010 scaffold, we synthesized additional analogues with improved selectivity and potency toward LPA5. Compound MZN-021, which contains a saturated lipophilic chain, exhibited 50 times more potent activity (EC50 = 1.2 nM) than the natural LPA against LPA5 with over a 45-fold higher selectivity when compared to those of other LPA receptors. Thus, MZN-021 was found to be a potent and selective LPA5 agonist. The findings of this study could contribute to broadening the current knowledge about the stereochemical and three-dimensional arrangement of LPA pharmacophore components inside LPA receptors and paving the way toward synthesizing other subtype-selective pharmacological probes.
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Affiliation(s)
- Mazin
A. S. Abdelwahid
- Graduate
School of Pharmaceutical Sciences, Tohoku
University, 6-3 Aza-aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
| | - Kosuke Ohsawa
- Graduate
School of Pharmaceutical Sciences, Tohoku
University, 6-3 Aza-aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
| | - Akiharu Uwamizu
- Graduate
School of Pharmaceutical Sciences, The University
of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Kuniyuki Kano
- Graduate
School of Pharmaceutical Sciences, The University
of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Junken Aoki
- Graduate
School of Pharmaceutical Sciences, The University
of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Takayuki Doi
- Graduate
School of Pharmaceutical Sciences, Tohoku
University, 6-3 Aza-aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
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Torres RM, Turner JA, D’Antonio M, Pelanda R, Kremer KN. Regulation of CD8 T-cell signaling, metabolism, and cytotoxic activity by extracellular lysophosphatidic acid. Immunol Rev 2023; 317:203-222. [PMID: 37096808 PMCID: PMC10523933 DOI: 10.1111/imr.13208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Revised: 04/07/2023] [Accepted: 04/08/2023] [Indexed: 04/26/2023]
Abstract
Lysophosphatidic acid (LPA) is an endogenous bioactive lipid that is produced extracellularly and signals to cells via cognate LPA receptors, which are G-protein coupled receptors (GPCRs). Mature lymphocytes in mice and humans express three LPA receptors, LPA2 , LPA5, and LPA6 , and work from our group has determined that LPA5 signaling by T lymphocytes inhibits specific antigen-receptor signaling pathways that ultimately impair lymphocyte activation, proliferation, and function. In this review, we discuss previous and ongoing work characterizing the ability of an LPA-LPA5 axis to serve as a peripheral immunological tolerance mechanism that restrains adaptive immunity but is subverted during settings of chronic inflammation. Specifically, LPA-LPA5 signaling is found to regulate effector cytotoxic CD8 T cells by (at least) two mechanisms: (i) regulating the actin-microtubule cytoskeleton in a manner that impairs immunological synapse formation between an effector CD8 T cell and antigen-specific target cell, thus directly impairing cytotoxic activity, and (ii) shifting T-cell metabolism to depend on fatty-acid oxidation for mitochondrial respiration and reducing metabolic efficiency. The in vivo outcome of LPA5 inhibitory activity impairs CD8 T-cell killing and tumor immunity in mouse models providing impetus to consider LPA5 antagonism for the treatment of malignancies and chronic infections.
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Affiliation(s)
- Raul M. Torres
- Department of Immunology & Microbiology, University of Colorado School of Medicine, Aurora Colorado, 80045
| | - Jacqueline A. Turner
- Department of Immunology & Microbiology, University of Colorado School of Medicine, Aurora Colorado, 80045
| | - Marc D’Antonio
- Department of Immunology & Microbiology, University of Colorado School of Medicine, Aurora Colorado, 80045
| | - Roberta Pelanda
- Department of Immunology & Microbiology, University of Colorado School of Medicine, Aurora Colorado, 80045
| | - Kimberly N. Kremer
- Department of Immunology & Microbiology, University of Colorado School of Medicine, Aurora Colorado, 80045
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Takai M, Okuda A, Amano Y, Yashiro N, Hara K, Yamamoto M, Tsujiuchi T. Effects of LPA receptor-mediated signaling on the modulation of cellular functions of pancreatic cancer cells cultured in fibroblast supernatants under hypoxic conditions. J Bioenerg Biomembr 2023:10.1007/s10863-023-09969-4. [PMID: 37219648 DOI: 10.1007/s10863-023-09969-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Accepted: 05/18/2023] [Indexed: 05/24/2023]
Abstract
The tumor microenvironment (TME) consists of various cell types, including fibroblasts. The TME plays a central role in the promotion of tumor progression. In the present study, we investigated whether lysophosphatidic acid (LPA) receptor-mediated signaling regulates cellular functions by the TME of pancreatic cancer PANC-1 cells. To obtain fibroblast 3T3 cell supernatants, 3T3 cells were cultured in 5% charcoal stripped FCS-DMEM for 48 h. LPAR2 and LPAR3 expression levels were elevated in PANC-1 cells cultured in 3T3 cell supernatants. While PANC-1 cell motility was decreased by 3T3 cell supernatants, the cell survival to cisplatin (CDDP) of PANC-1 cells was markedly enhanced. Moreover, the cell survival to CDDP of PANC-1 cells cultured in 3T3 cell supernatants was increased by GRI-977,143 (LPA2 agonist) and (2 S)-OMPT (LPA3 agonist). Since hypoxia is caused by the restriction of adequate vascular networks to deliver oxygen into solid tumors, PANC-1 cells were cultured in 3T3 cell supernatants at 1% O2 conditions. The cell survival to CDDP of PANC-1 cells cultured in 3T3 cell supernatants at 1% O2 was significantly elevated, correlating with LPAR2 and LPAR3 expressions. These results suggest that LPA signaling via LPA2 and LPA3 is involved in the promotion of malignant properties by the TME in PANC-1 cells.
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Affiliation(s)
- Miwa Takai
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, 577-8502, Osaka, Japan
| | - Aya Okuda
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, 577-8502, Osaka, Japan
| | - Yuka Amano
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, 577-8502, Osaka, Japan
| | - Narumi Yashiro
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, 577-8502, Osaka, Japan
| | - Koki Hara
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, 577-8502, Osaka, Japan
| | - Mao Yamamoto
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, 577-8502, Osaka, Japan
| | - Toshifumi Tsujiuchi
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, 577-8502, Osaka, Japan.
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Kurisu R, Takamoto M, Minami K, Ueda N, Yamada M, Shima N, Otani T, Sakai Y, Kondo D, Tsujiuchi T. Effects of lysophosphatidic acid (LPA) signaling via LPA receptors on cellular functions associated with ATP reduction in osteosarcoma cells treated with ethidium bromide. J Bioenerg Biomembr 2022; 54:109-117. [PMID: 35260987 DOI: 10.1007/s10863-022-09933-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Accepted: 02/07/2022] [Indexed: 11/29/2022]
Abstract
Lysophosphatidic acid (LPA) signaling via LPA receptors (LPA1 to LPA6) exhibits a variety of malignant properties in cancer cells. Intracellular ATP depletion leads to the development of necrosis and apoptosis. The present study aimed to evaluate the effects of LPA receptor-mediated signaling on the regulation of cancer cell functions associated with ATP reduction. Long-term ethidium bromide (EtBr) treated (MG63-EtBr) cells were established from osteosarcoma MG-63 cells. The intracellular ATP levels of MG63-EtBr cells were significantly lower than that of MG-63 cells. LPAR2, LPAR3, LPAR4 and LPAR6 gene expressions were elevated in MG63-EtBr cells. The cell motile and invasive activities of MG63-EtBr cells were markedly higher than those of MG-63 cells. The cell motile activity of MG-63 cells was increased by LPA4 and LPA6 knockdowns. In cell survival assay, cells were treated with cisplatin (CDDP) every 24 h for 3 days. The cell survival to CDDP of MG63-EtBr cells was lower than that of MG-63 cells. LPA2 knockdown decreased the cell survival to CDDP of MG-63 cells. The cell survival to CDDP of MG-63 cells was inhibited by (2 S)-OMPT (LPA3 agonist). Moreover, the cell survival to CDDP of MG-63 cells was enhanced by LPA4 and LPA6 knockdowns. These results indicate that LPA signaling via LPA receptors is involved in the regulation of cellular functions associated with ATP reduction in MG-63 cells treated with EtBr.
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Affiliation(s)
- Rio Kurisu
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, 577-8502, Higashiosaka, Osaka, Japan
| | - Miyu Takamoto
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, 577-8502, Higashiosaka, Osaka, Japan
| | - Kanako Minami
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, 577-8502, Higashiosaka, Osaka, Japan
| | - Nanami Ueda
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, 577-8502, Higashiosaka, Osaka, Japan
| | - Marina Yamada
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, 577-8502, Higashiosaka, Osaka, Japan
| | - Nanami Shima
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, 577-8502, Higashiosaka, Osaka, Japan
| | - Tomoka Otani
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, 577-8502, Higashiosaka, Osaka, Japan
| | - Yuma Sakai
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, 577-8502, Higashiosaka, Osaka, Japan
| | - Daisuke Kondo
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, 577-8502, Higashiosaka, Osaka, Japan
| | - Toshifumi Tsujiuchi
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, 577-8502, Higashiosaka, Osaka, Japan.
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9
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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] [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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10
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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] [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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11
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Minami K, Ueda N, Ishimoto K, Kurisu R, Takamoto M, Ikeda H, Tsujiuchi T. Roles of endothelial cells in the regulation of cell motility via lysophosphatidic acid receptor-2 (LPA 2) and LPA 3 in osteosarcoma cells. Exp Mol Pathol 2020; 118:104596. [PMID: 33347862 DOI: 10.1016/j.yexmp.2020.104596] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 11/30/2020] [Accepted: 12/06/2020] [Indexed: 11/28/2022]
Abstract
Lysophosphatidic acid (LPA) signaling via LPA receptors (LPA1 to LPA6) exhibits a variety of biological responses. In tumor microenvironment, endothelial cells promote cancer cell functions. In this study, we investigated the roles of endothelial cells in the regulation of cell motile activity via LPA2 and LPA3 in human osteosarcoma MG-63 cells. In cell motility assay, the cell motile activity of MG-63 cells was markedly increased by the supernatants of endothelial F2 cells. MG-63 cell motility elevated by the supernatants was enhanced by GRI-977143 (LPA2 agonist) and reduced by (2S)-OMPT (LPA3 agonist). LPAR2 and LPAR3 expressions were increased in highly migratory MG63-CR7(F2) cells, which were generated from MG-63 cells by co-culture with F2 cell supernatants. MG63-CR7(F2) cell motility was stimulated by LPA treatment. In the presence of F2 cell supernatants, MG63-CR7(F2) cell motility was markedly enhanced by GRI-977143 and suppressed by (2S)-OMPT. Autotaxin (ATX) enzymatically converts lysophosphatidylcholine (LPC) to LPA. ATX expression was higher in MG63-CR(F2) cells than in MG-63 cells. MG63-CR7(F2) cell motility was markedly increased by LPC in comparison with MG-63 cells. In addition, MG63-CR(F2) cell motility was significantly stimulated by the supernatants of LPC treated F2 cells. The present results suggest that the activation of LPA signaling via LPA2 and LPA3 by endothelial cells is involved in the modulation of cell motile activity of MG-63 cells.
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Affiliation(s)
- Kanako Minami
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Nanami Ueda
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Kaichi Ishimoto
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Rio Kurisu
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Miyu Takamoto
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Hiroko Ikeda
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Toshifumi Tsujiuchi
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan.
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Hisaoka-Nakashima K, Yokoe T, Watanabe S, Nakamura Y, Kajitani N, Okada-Tsuchioka M, Takebayashi M, Nakata Y, Morioka N. Lysophosphatidic acid induces thrombospondin-1 production in primary cultured rat cortical astrocytes. J Neurochem 2020; 158:849-864. [PMID: 33118159 DOI: 10.1111/jnc.15227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 10/09/2020] [Accepted: 10/25/2020] [Indexed: 11/25/2022]
Abstract
Lysophosphatidic acid (LPA), a brain membrane-derived lipid mediator, plays important roles including neural development, function, and behavior. In the present study, the effects of LPA on astrocyte-derived synaptogenesis factor thrombospondins (TSPs) production were examined by real-time PCR and western blotting, and the mechanism underlying this event was examined by pharmacological approaches in primary cultured rat cortical astrocytes. Treatment of astrocytes with LPA increased TSP-1 mRNA, and TSP-2 mRNA, but not TSP-4 mRNA expression. TSP-1 protein expression and release were also increased by LPA. LPA-induced TSP-1 production were inhibited by AM966 a LPA1 receptor antagonist, and Ki16425, LPA1/3 receptors antagonist, but not by H2L5146303, LPA2 receptor antagonist. Pertussis toxin, Gi/o inhibitor, but not YM-254890, Gq inhibitor, and NF499, Gs inhibitor, inhibited LPA-induced TSP-1 production, indicating that LPA increases TSP-1 production through Gi/o-coupled LPA1 and LPA3 receptors. LPA treatment increased phosphorylation of extracellular signal-regulated kinase (ERK), p38 mitogen-activated protein kinase (MAPK), and c-Jun N-terminal kinase (JNK). LPA-induced TSP-1 mRNA expression was inhibited by U0126, MAPK/ERK kinase (MEK) inhibitor, but not SB202190, p38 MAPK inhibitor, or SP600125, JNK inhibitor. However, LPA-induced TSP-1 protein expression was diminished with inhibition of all three MAPKs, indicating that these signaling molecules are involved in TSP-1 protein production. Treatment with antidepressants, which bind to astrocytic LPA1 receptors, increased TSP-1 mRNA and protein production. The current findings show that LPA/LPA1/3 receptors signaling increases TSP-1 production in astrocytes, which could be important in the pathogenesis of affective disorders and could potentially be a target for the treatment of affective disorders.
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Affiliation(s)
- Kazue Hisaoka-Nakashima
- Department of Pharmacology, Graduate School of Biomedical & Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Toshiki Yokoe
- Department of Pharmacology, Graduate School of Biomedical & Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Shintaro Watanabe
- Department of Pharmacology, Graduate School of Biomedical & Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Yoki Nakamura
- Department of Pharmacology, Graduate School of Biomedical & Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Naoto Kajitani
- Department of Neuropsychiatry, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan.,Division of Psychiatry and Neuroscience, Institute for Clinical Research, National Hospital Organization Kure Medical Center and Chugoku Cancer Center, Kure, Japan
| | - Mami Okada-Tsuchioka
- Division of Psychiatry and Neuroscience, Institute for Clinical Research, National Hospital Organization Kure Medical Center and Chugoku Cancer Center, Kure, Japan
| | - Minoru Takebayashi
- Department of Neuropsychiatry, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan.,Division of Psychiatry and Neuroscience, Institute for Clinical Research, National Hospital Organization Kure Medical Center and Chugoku Cancer Center, Kure, Japan
| | - Yoshihiro Nakata
- Department of Pharmacology, Graduate School of Biomedical & Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Norimitsu Morioka
- Department of Pharmacology, Graduate School of Biomedical & Health Sciences, Hiroshima University, Hiroshima, Japan
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Ueda N, Minami K, Ishimoto K, Tsujiuchi T. Effects of lysophosphatidic acid (LPA) receptor-2 (LPA 2) and LPA 3 on the regulation of chemoresistance to anticancer drug in lung cancer cells. Cell Signal 2020; 69:109551. [PMID: 32006610 DOI: 10.1016/j.cellsig.2020.109551] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2020] [Revised: 01/29/2020] [Accepted: 01/29/2020] [Indexed: 12/17/2022]
Abstract
Lysophosphatidic acid (LPA) mediates a variety of biological functions via the binding of G protein-coupled LPA receptors (LPA receptor-1 (LPA1) to LPA6). This study aimed to investigate the roles of LPA2 and LPA3 in the modulation of chemoresistance to anticancer drug in lung cancer A549 cells. In cell survival assay, cells were treated with cisplatin (CDDP) every 24 h for 2 days. The cell survival rate to CDDP of A549 cells was significantly elevated by an LPA2 agonist, GRI-977143. To evaluate the roles of LPA2-mediated signaling in cell survival during tumor progression, highly migratory (A549-R10) cells were generated from A549 cells. In the presence of GRI-977143, the cell survival rate to CDDP of A549-R10 cells were markedly higher than that of A549 cells, correlating with LPAR2 expression level. Moreover, to assess the effects of long-term anticancer drug treatment on cell survival, the long-term CDDP treated (A549-CDDP) cells were established from A549 cells. The cell survival rate to CDDP of A549-CDDP cells was elevated by GRI-977143. Since LPAR3 expression level was significantly higher in A549-CDDP cells than in A549 cells, we investigated the roles of LPA3 in the cell survival to CDDP of A549 cells, using an LPA3 agonist, 1-oleoyl-2-methyl-sn-glycero-3-phosphothionate ((2S)-OMPT). The cell survival rate to CDDP of A549 cells was significantly reduced by (2S)-OMPT treatment. In the presence of (2S)-OMPT, the cell survival rate to CDDP of A549 cells was elevated by LPA3 knockdown. These results suggest that LPA signaling via LPA2 and LPA3 is involved in the regulation of chemoresistance in A549 cells treated with CDDP.
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Affiliation(s)
- Nanami Ueda
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Kanako Minami
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Kaichi Ishimoto
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Toshifumi Tsujiuchi
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan.
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Chen SY, Geng CA, Ma YB, Huang XY, Yang XT, Su LH, He XF, Li TZ, Deng ZT, Gao Z, Zhang XM, Chen JJ. Polybenzyls from Gastrodia elata, their agonistic effects on melatonin receptors and structure-activity relationships. Bioorg Med Chem 2019; 27:3299-3306. [PMID: 31204226 DOI: 10.1016/j.bmc.2019.06.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Revised: 05/30/2019] [Accepted: 06/05/2019] [Indexed: 10/26/2022]
Abstract
Gastrodia elata is a famous traditional Chinese herb with medicinal and edible application. In this study, nine polybenzyls (1-9), including six new ones (2-5, 7 and 9), were isolated from the EtOAc extract of G. elata. Five compounds 1, 3, 4, 6 and 8 were found to activate melatonin receptors. Especially, compound 1 showed agonistic effects on MT1 and MT2 receptors with EC50 values of 237 and 244 μM. For better understanding their structure-activity relationships (SARs), ten polybenzyl analogs were further synthesized and assayed for their activities on melatonin receptors. Preliminary SARs study suggested that two para-hydroxy groups were the key pharmacophore for maintaining activity. Molecular docking simulations verified that compound 1 could strongly interact with MT2 receptor by bonding to Phe 118, Gly 121, His 208, Try 294 and Ala 297 residues.
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Affiliation(s)
- Si-Yue Chen
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China; Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming 650201, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Chang-An Geng
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China; Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming 650201, China
| | - Yun-Bao Ma
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China; Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming 650201, China
| | - Xiao-Yan Huang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China; Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming 650201, China
| | - Xiao-Tong Yang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China; Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming 650201, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Li-Hua Su
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China; Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming 650201, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiao-Feng He
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China; Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming 650201, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Tian-Ze Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China; Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming 650201, China
| | - Zhen-Tao Deng
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China; Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming 650201, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhen Gao
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China; Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming 650201, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xue-Mei Zhang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China; Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming 650201, China
| | - Ji-Jun Chen
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China; Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming 650201, China; University of Chinese Academy of Sciences, Beijing 100049, China.
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15
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Chen SY, Geng CA, Ma YB, Chen JJ. Melatonin Receptors Agonistic Activities of Phenols from Gastrodia elata. NATURAL PRODUCTS AND BIOPROSPECTING 2019; 9:297-302. [PMID: 31175580 PMCID: PMC6646438 DOI: 10.1007/s13659-019-0213-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Accepted: 05/22/2019] [Indexed: 05/11/2023]
Abstract
Gastrodia elata is a famous traditional Chinese herb with medicinal and edible application. In this study, three new polybenzyls, gastropolybenzylols G-I (1-3) were isolated from the EtOAc extract of G. elata. Their structures were identified by extensive spectroscopic analyses involving HRESIMS, UV, IR, 1D and 2D NMR. Compound 1 showed agonistic effects on MT1 and MT2 receptors with agonistic rates of 55.91±4.84% and 165.13±5.65% at the concentration of 0.5 mM, respectively, and an EC50 value of 76.24 μM on MT2 receptor.
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Affiliation(s)
- Si-Yue Chen
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Yunnan Key Laboratory of Natural Medicinal Chemistry, Chinese Academy of Sciences, Kunming, 650201, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Chang-An Geng
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Yunnan Key Laboratory of Natural Medicinal Chemistry, Chinese Academy of Sciences, Kunming, 650201, China
| | - Yun-Bao Ma
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Yunnan Key Laboratory of Natural Medicinal Chemistry, Chinese Academy of Sciences, Kunming, 650201, China
| | - Ji-Jun Chen
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Yunnan Key Laboratory of Natural Medicinal Chemistry, Chinese Academy of Sciences, Kunming, 650201, China.
- University of Chinese Academy of Sciences, Beijing, 100049, China.
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16
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Byrnes CC, Jia W, Alshamrani AA, Kuppa SS, Murph MM. miR-122-5p Expression and Secretion in Melanoma Cells Is Amplified by the LPAR3 SH3–Binding Domain to Regulate Wnt1. Mol Cancer Res 2018; 17:299-309. [DOI: 10.1158/1541-7786.mcr-18-0460] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Revised: 08/16/2018] [Accepted: 09/11/2018] [Indexed: 11/16/2022]
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17
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Stuelten CH, Lee RM, Losert W, Parent CA. Lysophosphatidic acid regulates the motility of MCF10CA1a breast cancer cell sheets via two opposing signaling pathways. Cell Signal 2018; 45:1-11. [PMID: 29337044 PMCID: PMC5845779 DOI: 10.1016/j.cellsig.2018.01.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Revised: 12/22/2017] [Accepted: 01/07/2018] [Indexed: 01/31/2023]
Abstract
Aberrant cell migration leads to the dispersal of malignant cells. The ubiquitous lipid mediator lysophosphatidic acid (LPA) modulates cell migration and is implicated in tumor progression. Yet, the signaling cascades that regulate LPA's effect on cell motility remain unclear. Using time-lapse imaging and quantitative analyses, we studied the role of signaling cascades that act downstream of LPA on the motility of MCF10CA1a breast cancer cells. We found that LPA alters cell motility via two major signaling pathways. The Rho/ROCK signaling cascade is the predominant pathway that increases E-Cadherin containing cell-cell adhesions and cortical arrangement of actomyosin to promote slow, directional, spatially coherent and temporally consistent movement. In contrast, Gαi/o- and Gαq/11-dependent signaling cascades lessen directionality and support the independent movement of cells. The net effect of LPA on breast cancer cell migration therefore results from the integrated signaling activity of the Rho/ROCK and Gαi/o- and Gαq/11-dependent pathways, thus allowing for a dynamic migratory response to changes in the cellular or microenvironmental context.
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Affiliation(s)
- Christina H Stuelten
- Laboratory of Cellular and Molecular Biology, Center for Cancer Research, National Cancer Institute, Bethesda, MD, United States.
| | - Rachel M Lee
- Laboratory of Cellular and Molecular Biology, Center for Cancer Research, National Cancer Institute, Bethesda, MD, United States; Department of Physics, Physical Sciences Complex, University of Maryland, College Park, MD, United States
| | - Wolfgang Losert
- Laboratory of Cellular and Molecular Biology, Center for Cancer Research, National Cancer Institute, Bethesda, MD, United States; Department of Physics, Physical Sciences Complex, University of Maryland, College Park, MD, United States
| | - Carole A Parent
- Laboratory of Cellular and Molecular Biology, Center for Cancer Research, National Cancer Institute, Bethesda, MD, United States; Department of Pharmacology, Michigan Medicine, Life Sciences Institute, University of Michigan, Ann Arbor, MI..
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18
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2- OMe -lysophosphatidylcholine analogues are GPR119 ligands and activate insulin secretion from βTC-3 pancreatic cells: Evaluation of structure-dependent biological activity. Biochim Biophys Acta Mol Cell Biol Lipids 2018; 1863:91-103. [DOI: 10.1016/j.bbalip.2017.10.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Revised: 10/19/2017] [Accepted: 10/22/2017] [Indexed: 01/08/2023]
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19
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Carmona-Rosas G, Alfonzo-Méndez MA, Hernández-Espinosa DA, Romero-Ávila MT, García-Sáinz JA. A549 cells as a model to study endogenous LPA 1 receptor signaling and regulation. Eur J Pharmacol 2017; 815:258-265. [DOI: 10.1016/j.ejphar.2017.09.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Revised: 08/29/2017] [Accepted: 09/12/2017] [Indexed: 12/12/2022]
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20
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Yin XJ, Huang XY, Ma YB, Geng CA, Li TZ, Chen XL, Yang TH, Zhou J, Zhang XM, Chen JJ. Bioactivity-guided synthesis of gramine derivatives as new MT 1 and 5-HT 1A receptors agonists. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2017; 19:610-622. [PMID: 28480745 DOI: 10.1080/10286020.2017.1323885] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2017] [Accepted: 04/24/2017] [Indexed: 06/07/2023]
Abstract
Twenty-four gramine derivatives were synthesized and evaluated on MT1 and 5-HT1A receptors in vitro. Among them, seven derivatives (7, 8, 16, 19, 20, 21, and 24) exhibited higher agonisting activities on MT1 or 5-HT1A receptors. Compared with gramine, derivatives 7, 8, 16, 19, 20, 21, and 24 displayed 1.6-3.5-fold increase in agonistic rates on 5-HT1A receptor. Particularly, derivatives 7, 19, and 21 exhibited significant agonistic activities on MT1 and 5-HT1A receptors with EC50 values of 0.51, 0.39, 0.50 mΜ and 0.28, 0.46, 0.23 mΜ, respectively. The preliminary structure-activity relationships of gramine derivatives were summarized for further investigation on MT1 and 5-HT1A receptors as new potential agonists.
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Affiliation(s)
- Xiu-Juan Yin
- a School of Chemical Science and Technology , Yunnan University , Kunming 650091 , China
- b State Key Laboratory of Phytochemistry and Plant Resources in West China , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , China
- d Kunming Institute of Botany , University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Xiao-Yan Huang
- b State Key Laboratory of Phytochemistry and Plant Resources in West China , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , China
- c Yunnan Key Laboratory of Natural Medicinal Chemistry , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , China
| | - Yun-Bao Ma
- b State Key Laboratory of Phytochemistry and Plant Resources in West China , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , China
- c Yunnan Key Laboratory of Natural Medicinal Chemistry , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , China
| | - Chang-An Geng
- b State Key Laboratory of Phytochemistry and Plant Resources in West China , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , China
- c Yunnan Key Laboratory of Natural Medicinal Chemistry , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , China
| | - Tian-Ze Li
- b State Key Laboratory of Phytochemistry and Plant Resources in West China , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , China
- c Yunnan Key Laboratory of Natural Medicinal Chemistry , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , China
| | - Xing-Long Chen
- b State Key Laboratory of Phytochemistry and Plant Resources in West China , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , China
- d Kunming Institute of Botany , University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Tong-Hua Yang
- b State Key Laboratory of Phytochemistry and Plant Resources in West China , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , China
- c Yunnan Key Laboratory of Natural Medicinal Chemistry , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , China
| | - Jun Zhou
- a School of Chemical Science and Technology , Yunnan University , Kunming 650091 , China
- b State Key Laboratory of Phytochemistry and Plant Resources in West China , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , China
| | - Xue-Mei Zhang
- b State Key Laboratory of Phytochemistry and Plant Resources in West China , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , China
- c Yunnan Key Laboratory of Natural Medicinal Chemistry , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , China
| | - Ji-Jun Chen
- b State Key Laboratory of Phytochemistry and Plant Resources in West China , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , China
- c Yunnan Key Laboratory of Natural Medicinal Chemistry , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , China
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21
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Drzazga A, Sowinska A, Krzeminska A, Rytczak P, Koziolkiewicz M, Gendaszewska-Darmach E. Lysophosphatidylcholine elicits intracellular calcium signaling in a GPR55-dependent manner. Biochem Biophys Res Commun 2017; 489:242-247. [PMID: 28552522 DOI: 10.1016/j.bbrc.2017.05.145] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2017] [Accepted: 05/24/2017] [Indexed: 01/28/2023]
Abstract
The GPR55 signaling is fertile ground for drug discovery, however despite considerable research progress during the past 10 years, many open questions remain. The GPR55 pharmacology remains controversial, as many ligands have been reported with inconsistent results. Here, we show that various molecular species of lysophosphatidylcholine (LPC) elicit intracellular Ca2+ mobilization in GPR55-expressing PC-3 human prostate carcinoma cells. The response was even stronger than [Ca2+]i flux evoked by endogenous (OEA) and synthetic (Abn-CBD) agonists. Treatment with GPR55 antagonists CID16020046 and ML193 as well as the lipid raft disrupter methyl-β-cyclodextrin strongly blunted LPC-induced calcium signal. Additionally, molecular modeling analysis revealed that LPC 16:0 and LPC 18:1 interact stronger with the receptor than to OEA. Identified electrostatic interactions between GPR55 residues and the ligands overlap with the binding site identified previously for lysophosphatidylinositol. Therefore, we prove that LPC is another GPR55-sensitive ligand. This finding is relevant in understanding lysophospolipids-mediated signaling and opens new avenues to develop therapeutic approach based on GPR55 targeting.
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Affiliation(s)
- Anna Drzazga
- Institute of Technical Biochemistry, Faculty of Biotechnology and Food Sciences, Lodz University of Technology, Stefanowskiego 4/10, 90-924 Lodz, Poland.
| | - Agata Sowinska
- Institute of Technical Biochemistry, Faculty of Biotechnology and Food Sciences, Lodz University of Technology, Stefanowskiego 4/10, 90-924 Lodz, Poland
| | - Agnieszka Krzeminska
- Institute of Applied Radiation Chemistry, Lodz University of Technology, Wroblewskiego 15, 93-590 Lodz, Poland
| | - Przemysław Rytczak
- Institute of Technical Biochemistry, Faculty of Biotechnology and Food Sciences, Lodz University of Technology, Stefanowskiego 4/10, 90-924 Lodz, Poland
| | - Maria Koziolkiewicz
- Institute of Technical Biochemistry, Faculty of Biotechnology and Food Sciences, Lodz University of Technology, Stefanowskiego 4/10, 90-924 Lodz, Poland
| | - Edyta Gendaszewska-Darmach
- Institute of Technical Biochemistry, Faculty of Biotechnology and Food Sciences, Lodz University of Technology, Stefanowskiego 4/10, 90-924 Lodz, Poland.
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The chemical synthesis and preliminary biological studies of phosphodiester and phosphorothioate analogues of 2-methoxy-lysophosphatidylethanolamine. Bioorg Med Chem Lett 2016; 26:3725-9. [PMID: 27268697 DOI: 10.1016/j.bmcl.2016.05.075] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Revised: 05/25/2016] [Accepted: 05/26/2016] [Indexed: 11/22/2022]
Abstract
The chemical synthesis of phosphorothioate/phosphodiester analogues of 2-methoxy-lysophosphatidylethanolamine has been described. For the preparation of phosphorothioate derivatives oxathiaphospholane approach has been employed. The phosphodiester compounds were prepared by OXONE® oxidation of corresponding phosphorothioates. Each lysophospholipid analogue was synthesized as a series of four compounds, bearing different fatty acid residues both saturated (14:0, 16:0, 18:0) and unsaturated (18:1). The methylation of glycerol 2-hydroxyl function was applied in order to increase the stability of prepared analogues by preventing 1→2 acyl migration. The cytotoxicity of newly synthesized 2-methoxy-lysophosphatidylethanolamine derivatives was evaluated with resazurin-based method in prostate cancer PC3 cell line. The highest reduction of cell viability was noted for LPE analogues containing myristoyl acyl chain.
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Liang WJ, Ma YB, Geng CA, Huang XY, Xu HB, Zhang XM, Chen JJ. Paeoveitols A–E from Paeonia veitchii. Fitoterapia 2015; 106:36-40. [DOI: 10.1016/j.fitote.2015.07.015] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2015] [Revised: 07/24/2015] [Accepted: 07/26/2015] [Indexed: 01/11/2023]
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24
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Qian Z, Chai L, Zhou Q, Huang Y, Tang C, Chen J, Feng H. Reversible Fluorescent Nanoswitch Based on Carbon Quantum Dots Nanoassembly for Real-Time Acid Phosphatase Activity Monitoring. Anal Chem 2015; 87:7332-9. [DOI: 10.1021/acs.analchem.5b01488] [Citation(s) in RCA: 90] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Zhaosheng Qian
- College of Chemistry and
Life Science, Zhejiang Normal University, Jinhua 321004, China
| | - Lujing Chai
- College of Chemistry and
Life Science, Zhejiang Normal University, Jinhua 321004, China
| | - Qian Zhou
- College of Chemistry and
Life Science, Zhejiang Normal University, Jinhua 321004, China
| | - Yuanyuan Huang
- College of Chemistry and
Life Science, Zhejiang Normal University, Jinhua 321004, China
| | - Cong Tang
- College of Chemistry and
Life Science, Zhejiang Normal University, Jinhua 321004, China
| | - Jianrong Chen
- College of Chemistry and
Life Science, Zhejiang Normal University, Jinhua 321004, China
| | - Hui Feng
- College of Chemistry and
Life Science, Zhejiang Normal University, Jinhua 321004, China
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González-Gil I, Zian D, Vázquez-Villa H, Ortega-Gutiérrez S, López-Rodríguez ML. The status of the lysophosphatidic acid receptor type 1 (LPA1R). MEDCHEMCOMM 2015. [DOI: 10.1039/c4md00333k] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
The current status of the LPA1receptor and its ligands in the drug development pipeline is reviewed.
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Affiliation(s)
- Inés González-Gil
- Departamento de Química Orgánica I
- Facultad de Ciencias Químicas
- Universidad Complutense de Madrid
- E-28040 Madrid
- Spain
| | - Debora Zian
- Departamento de Química Orgánica I
- Facultad de Ciencias Químicas
- Universidad Complutense de Madrid
- E-28040 Madrid
- Spain
| | - Henar Vázquez-Villa
- Departamento de Química Orgánica I
- Facultad de Ciencias Químicas
- Universidad Complutense de Madrid
- E-28040 Madrid
- Spain
| | - Silvia Ortega-Gutiérrez
- Departamento de Química Orgánica I
- Facultad de Ciencias Químicas
- Universidad Complutense de Madrid
- E-28040 Madrid
- Spain
| | - María L. López-Rodríguez
- Departamento de Química Orgánica I
- Facultad de Ciencias Químicas
- Universidad Complutense de Madrid
- E-28040 Madrid
- Spain
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Ho YH, Yao CL, Lin KH, Hou FH, Chen WM, Chiang CL, Lin YN, Li MW, Lin SH, Yang YJ, Lin CC, Lu J, Tigyi G, Lee H. Opposing regulation of megakaryopoiesis by LPA receptors 2 and 3 in K562 human erythroleukemia cells. Biochim Biophys Acta Mol Cell Biol Lipids 2014; 1851:172-83. [PMID: 25463482 DOI: 10.1016/j.bbalip.2014.11.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2014] [Revised: 11/06/2014] [Accepted: 11/13/2014] [Indexed: 01/10/2023]
Abstract
Erythrocytes and megakaryocytes (MK) are derived from a common progenitor that undergoes lineage specification. Lysophosphatidic acid (LPA), a lipid growth factor was previously shown to be a regulator for erythropoietic process through activating LPA receptor 3 (LPA3). However, whether LPA affects megakaryopoiesis remains unclear. In this study, we used K562 leukemia cell line as a model to investigate the roles of LPA in MK differentiation. We demonstrated that K562 cells express both LPA2 and LPA3, and the expression levels of LPA2 are higher than LPA3. Treatment with phorbol 12-myristate 13-acetate, a commonly used inducer of megakaryopoiesis, reciprocally regulates the expressions of LPA2 and LPA3. By pharmacological blockers and knockdown experiments, we showed that activation of LPA2 suppresses whereas, LPA3 promotes megakaryocytic differentiation in K562. The LPA2-mediated inhibition is dependent on β-catenin translocation, whereas reactive oxygen species (ROS) generation is a downstream signal for activation of LPA3. Furthermore, the hematopoietic transcriptional factors GATA-1 and FLI-1, appear to be involved in these regulatory mechanisms. Taken together, our results suggested that LPA2 and LPA3 may function as a molecular switch and play opposing roles during megakaryopoiesis of K562 cells.
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Affiliation(s)
- Ya-Hsuan Ho
- Department of Life Science, National Taiwan University, Taipei, Taiwan, ROC
| | - Chao-Ling Yao
- Department of Chemical Engineering and Materials Science, Yuan-Ze University, Chung-Li, Taiwan, ROC
| | - Kuan-Hung Lin
- Department of Life Science, National Taiwan University, Taipei, Taiwan, ROC
| | - Fen-Han Hou
- Department of Life Science, National Taiwan University, Taipei, Taiwan, ROC
| | - Wei-Min Chen
- Department of Life Science, National Taiwan University, Taipei, Taiwan, ROC
| | - Chi-Ling Chiang
- School of Biomedical Science, The Ohio State University, Columbus, USA
| | - Yu-Nung Lin
- Department of Life Science, National Taiwan University, Taipei, Taiwan, ROC
| | - Meng-Wei Li
- Department of Life Science, National Taiwan University, Taipei, Taiwan, ROC
| | - Shi-Hung Lin
- Department of Life Science, National Taiwan University, Taipei, Taiwan, ROC
| | - Ya-Jan Yang
- Department of Life Science, National Taiwan University, Taipei, Taiwan, ROC
| | - Chu-Cheng Lin
- Department of Life Science, National Taiwan University, Taipei, Taiwan, ROC
| | - Jenher Lu
- Department of Pediatrics and Pediatric Cardiology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC.
| | - Gabor Tigyi
- Department of Physiology, University of Tennessee Health Science Center Memphis, Memphis, USA.
| | - Hsinyu Lee
- Department of Life Science, National Taiwan University, Taipei, Taiwan, ROC; Department of Electrical Engineering, National Taiwan University, Taipei, Taiwan, ROC; Angiogenesis Research Center, National Taiwan University, Taipei, Taiwan, ROC; Research Center for Developmental Biology and Regenerative Medicine, National Taiwan University, Taipei, Taiwan, ROC; Center for Biotechnology, National Taiwan University, Taipei, Taiwan, ROC.
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27
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Brusevold IJ, Tveteraas IH, Aasrum M, Ødegård J, Sandnes DL, Christoffersen T. Role of LPAR3, PKC and EGFR in LPA-induced cell migration in oral squamous carcinoma cells. BMC Cancer 2014; 14:432. [PMID: 24928086 PMCID: PMC4065589 DOI: 10.1186/1471-2407-14-432] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2013] [Accepted: 06/03/2014] [Indexed: 11/10/2022] Open
Abstract
Background Oral squamous cell carcinoma is an aggressive neoplasm with serious morbidity and mortality, which typically spreads through local invasive growth. Lysophosphatidic acid (LPA) is involved in a number of biological processes, and may have a role in cancer cell migration and invasiveness. LPA is present in most tissues and can activate cells through six different LPA receptors (LPAR1-6). Although LPA is predominantly promigratory, some of the receptors may have antimigratory effects in certain cells. The signalling mechanisms of LPA are not fully understood, and in oral carcinoma cells the specific receptors and pathways involved in LPA-stimulated migration are unknown. Methods The oral carcinoma cell lines E10, SCC-9, and D2 were investigated. Cell migration was studied in a scratch wound assay, and invasion was demonstrated in organotypic three dimensional co-cultures. Protein and mRNA expression of LPA receptors was studied with Western blotting and qRT-PCR. Activation of signalling proteins was examined with Western blotting and isoelectric focusing, and signalling mechanisms were further explored using pharmacological agents and siRNA directed at specific receptors and pathways. Results LPA stimulated cell migration in the two oral carcinoma cell lines E10 and SCC-9, but was slightly inhibitory in D2. The receptor expression profile and the effects of specific pharmacological antagonist and agonists indicated that LPA-stimulated cell migration was mediated through LPAR3 in E10 and SCC-9. Furthermore, in both these cell lines, the stimulation by LPA was dependent on PKC activity. However, while LPA induced transactivation of EGFR and the stimulated migration was blocked by EGFR inhibitors in E10 cells, LPA did not induce EGFR transactivation in SCC-9 cells. In D2 cells, LPA induced EGFR transactivation, but this was associated with slowing of a very high inherent migration rate in these cells. Conclusion The results demonstrate LPA-stimulated migration in oral carcinoma cells through LPAR3, mediated further by PKC, which acts either in concert with or independently of EGFR transactivation.
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Affiliation(s)
- Ingvild J Brusevold
- Department of Pharmacology, Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, and Oslo University Hospital, Blindern, P,O, Box 1057, Oslo N-0316, Norway.
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Motiejūnaitė R, Aranda J, Kazlauskas A. Pericytes prevent regression of endothelial cell tubes by accelerating metabolism of lysophosphatidic acid. Microvasc Res 2014; 93:62-71. [DOI: 10.1016/j.mvr.2014.03.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2013] [Revised: 01/16/2014] [Accepted: 03/19/2014] [Indexed: 01/10/2023]
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Archbold JK, Martin JL, Sweet MJ. Towards selective lysophospholipid GPCR modulators. Trends Pharmacol Sci 2014; 35:219-26. [PMID: 24746475 DOI: 10.1016/j.tips.2014.03.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2013] [Revised: 03/13/2014] [Accepted: 03/14/2014] [Indexed: 01/08/2023]
Abstract
G-protein-coupled receptors (GPCRs) that recognize the lysophospholipids (LPLs) are grouped into two phylogenetically distinct families: the endothelial differentiation gene (Edg) and non-Edg GPCRs. Owing to their more recent identification, and hindered by a lack of selective pharmacological tools, our understanding of the functions and signaling pathways of the non-Edg GPCRs is still in its infancy. Targeting the non-conserved allosteric binding sites of the LPL GPCRs shows particular promise for the development of selective modulators by structure-based drug design. However, only one Edg GPCR (S1PR1) structure has been determined to date, and it has low sequence identity with the non-Edg GPCRs (<20%). Thus, a representative structure of a non-Edg GPCR remains a pressing objective for selective structure-based drug design. Obtaining selective modulators targeting the non-Edg receptors would help to unravel the biology behind these novel GPCRs and potentially will support therapeutic treatment of diseases such as cancer, inflammation, and neuropsychiatric disorders.
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Affiliation(s)
- Julia K Archbold
- Division of Chemistry and Structural Biology, The University of Queensland, Institute for Molecular Bioscience, St Lucia, Brisbane, QLD 4072, Australia.
| | - Jennifer L Martin
- Division of Chemistry and Structural Biology, The University of Queensland, Institute for Molecular Bioscience, St Lucia, Brisbane, QLD 4072, Australia
| | - Matthew J Sweet
- Division of Molecular and Cell Biology, The University of Queensland, Institute for Molecular Bioscience, St Lucia, Brisbane, QLD 4072, Australia
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Alexander SPH, Benson HE, Faccenda E, Pawson AJ, Sharman JL, Spedding M, Peters JA, Harmar AJ. The Concise Guide to PHARMACOLOGY 2013/14: G protein-coupled receptors. Br J Pharmacol 2013; 170:1459-581. [PMID: 24517644 PMCID: PMC3892287 DOI: 10.1111/bph.12445] [Citation(s) in RCA: 505] [Impact Index Per Article: 45.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The Concise Guide to PHARMACOLOGY 2013/14 provides concise overviews of the key properties of over 2000 human drug targets with their pharmacology, plus links to an open access knowledgebase of drug targets and their ligands (www.guidetopharmacology.org), which provides more detailed views of target and ligand properties. The full contents can be found at http://onlinelibrary.wiley.com/doi/10.1111/bph.12444/full. G protein-coupled receptors are one of the seven major pharmacological targets into which the Guide is divided, with the others being G protein-coupled receptors, ligand-gated ion channels, ion channels, catalytic receptors, nuclear hormone receptors, transporters and enzymes. These are presented with nomenclature guidance and summary information on the best available pharmacological tools, alongside key references and suggestions for further reading. A new landscape format has easy to use tables comparing related targets. It is a condensed version of material contemporary to late 2013, which is presented in greater detail and constantly updated on the website www.guidetopharmacology.org, superseding data presented in previous Guides to Receptors and Channels. It is produced in conjunction with NC-IUPHAR and provides the official IUPHAR classification and nomenclature for human drug targets, where appropriate. It consolidates information previously curated and displayed separately in IUPHAR-DB and the Guide to Receptors and Channels, providing a permanent, citable, point-in-time record that will survive database updates.
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Affiliation(s)
- Stephen PH Alexander
- School of Life Sciences, University of Nottingham Medical SchoolNottingham, NG7 2UH, UK
| | - Helen E Benson
- The University/BHF Centre for Cardiovascular Science, University of EdinburghEdinburgh, EH16 4TJ, UK
| | - Elena Faccenda
- The University/BHF Centre for Cardiovascular Science, University of EdinburghEdinburgh, EH16 4TJ, UK
| | - Adam J Pawson
- The University/BHF Centre for Cardiovascular Science, University of EdinburghEdinburgh, EH16 4TJ, UK
| | - Joanna L Sharman
- The University/BHF Centre for Cardiovascular Science, University of EdinburghEdinburgh, EH16 4TJ, UK
| | | | - John A Peters
- Neuroscience Division, Medical Education Institute, Ninewells Hospital and Medical School, University of DundeeDundee, DD1 9SY, UK
| | - Anthony J Harmar
- The University/BHF Centre for Cardiovascular Science, University of EdinburghEdinburgh, EH16 4TJ, UK
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Rytczak P, Drzazga A, Gendaszewska-Darmach E, Okruszek A. The chemical synthesis and cytotoxicity of new sulfur analogues of 2-methoxy-lysophosphatidylcholine. Bioorg Med Chem Lett 2013; 23:6794-8. [PMID: 24206765 DOI: 10.1016/j.bmcl.2013.10.020] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2013] [Revised: 10/03/2013] [Accepted: 10/08/2013] [Indexed: 12/01/2022]
Abstract
The chemical synthesis of phosphorothioate/phosphorodithioate analogues of 2-methoxy-lysophosphatidylcholine has been described. For the preparation of new sulfur derivatives of lysophosphatidylcholine both oxathiaphospholane and dithiaphospholane approaches have been employed. Each lysophospholipid analogue was synthesized as a series of five compounds, bearing different fatty acid residues both saturated (12:0, 14:0, 16:0, 18:0) and unsaturated (18:1). The methylation of glycerol 2-hydroxyl function was applied in order to increase the stability of prepared analogues by preventing 1 → 2 acyl migration. The cellular toxicity of newly synthesized 2-methoxy-lysophosphatidylcholine derivatives was measured using MTT viability assay and lactate dehydrogenase release method.
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Affiliation(s)
- Przemysław Rytczak
- Institute of Technical Biochemistry, Faculty of Biotechnology and Food Sciences, Lodz University of Technology, Stefanowskiego 4/10, 90-924 Lodz, Poland
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32
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Reciprocal regulation of miR-23a and lysophosphatidic acid receptor signaling in cardiomyocyte hypertrophy. Biochim Biophys Acta Mol Cell Biol Lipids 2013; 1831:1386-94. [PMID: 23711961 DOI: 10.1016/j.bbalip.2013.05.005] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2012] [Revised: 05/05/2013] [Accepted: 05/17/2013] [Indexed: 12/26/2022]
Abstract
Earlier, our study demonstrated that lysophosphatidic acid (LPA) receptor mediated cardiomyocyte hypertrophy. However, the subtype-specific functions for LPA1 and LPA3 receptors in LPA-induced hypertrophy have not been distinguished. Growing evidence indicates that microRNAs (miRNAs) are involved in the pathogenesis of cardiac hypertrophy by down-regulating target molecules. The present work therefore aimed at elucidating the functions mediated by different subtypes of LPA receptors and investigating the modulatory role of miRNAs during LPA induced hypertrophy. Experiments were done with cultured neonatal rat cardiomyocytes (NRCMs) exposed to LPA and we showed that knockdown of LPA1 by small interfering RNA (siRNA) enhanced LPA-induced cardiomyocyte hypertrophy, whereas LPA3 silencing repressed hypertrophy. miR-23a, a pro-hypertrophic miRNA, was up-regulated by LPA in cardiomyocytes and its down-regulation reduced LPA-induced cardiomyocyte hypertrophy. Importantly, luciferase reporter assay confirmed LPA1 to be a target of miR-23a, indicating that miR-23a is involved in mediating the LPA-induced cardiomyocyte hypertrophy by targeting LPA1. In addition, knockdown of LPA3, but not LPA1, eliminated miR-23a elevation induced by LPA. And PI3K inhibitor, LY294002, effectively prevented LPA-induced miR-23a expression in cardiomyocytes, suggesting that LPA might induce miR-23a elevation by activating LPA3 and PI3K/AKT pathway. These findings identified opposite subtype-specific functions for LPA1 and LPA3 in mediating cardiomyocyte hypertrophy and indicated LPA1 to be a target of miR-23a, which discloses a link between miR-23a and the LPA receptor signaling in cardiomyocyte hypertrophy.
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33
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Lancaster S, Mansell JP. The role of lysophosphatidic acid on human osteoblast formation, maturation and the implications for bone health and disease. ACTA ACUST UNITED AC 2013. [DOI: 10.2217/clp.12.86] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Current progress in non-Edg family LPA receptor research. Biochim Biophys Acta Mol Cell Biol Lipids 2012; 1831:33-41. [PMID: 22902318 DOI: 10.1016/j.bbalip.2012.08.003] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2012] [Revised: 08/01/2012] [Accepted: 08/02/2012] [Indexed: 01/08/2023]
Abstract
Lysophosphatidic acid (LPA) is the simplest phospholipid yet possesses myriad biological functions. Until 2003, the functions of LPA were thought to be elicited exclusively by three subtypes of the endothelial differentiation gene (Edg) family of G protein-coupled receptors - LPA(1), LPA(2), and LPA(3). However, several biological functions of LPA could not be assigned to any of these receptors indicating the existence of one or more additional LPA receptor(s). More recently, the discovery of a second cluster of LPA receptors which includes LPA(4), LPA(5), and LPA(6) has paved the way for new avenues of LPA research. Analyses of these non-Edg family LPA receptors have begun to fill in gaps to understand biological functions of LPA such as platelet aggregation and vascular development that could not be ascribed to classical Edg family LPA receptors and are also unveiling new biological functions. Here we review recent progress in the non-Edg family LPA receptor research, with special emphasis on the pharmacology, signaling, and physiological roles of this family of receptors. This article is part of a Special Issue entitled Advances in Lysophospholipid Research.
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35
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Xie Y, Tan Y, Liu R, Zhao R, Tan C, Jiang Y. Continuous and sensitive acid phosphatase assay based on a conjugated polyelectrolyte. ACS APPLIED MATERIALS & INTERFACES 2012; 4:3784-3787. [PMID: 22812479 DOI: 10.1021/am3011498] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
We report a novel continuous and sensitive fluorescence turn-on assay for ACPs, which consists of a cationic conjugated polyelectrolyte (PPE4+) and a commonly used phosphatase substrate p-nitrophenyl phosphate (pNPP). The kinetics of the ACP catalyzed hydrolysis of the substrate pNPP was monitored by the fluorescence change of PPE4+ and corresponding kinetic parameters were derived to be consistent with the literature reports. The applications of PPE4+/pNPP-based ACP assay in high-throughput screening of ACP inhibitors and detection of prostatic acid phosphotase (PAP) in vitro were demonstrated.
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Furuta D, Yamane M, Tsujiuchi T, Moriyama R, Fukushima N. Lysophosphatidic acid induces neurite branch formation through LPA3. Mol Cell Neurosci 2012; 50:21-34. [PMID: 22465231 DOI: 10.1016/j.mcn.2012.03.006] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2011] [Revised: 02/03/2012] [Accepted: 03/14/2012] [Indexed: 01/13/2023] Open
Abstract
Although neurite branching is crucial for neuronal network formation after birth, its underlying mechanisms remain unclear. Here, we demonstrate that lysophosphatidic acid (LPA) stimulates neurite branching through a novel signaling pathway. Treatment of neuronal cell lines with LPA resulted in neurite branch formation when LPA(3) receptor was introduced. The effects of LPA were blocked by inhibition of G(q) signaling. Furthermore, expression of inhibitory mutants of the small GTPase Rnd2/Rho7 or an Rnd2 effector rapostlin abolished LPA(3)-mediated neurite branching. The LPA(3) agonist 2(S)-OMPT or LPA also induced axonal branch formation in hippocampal neurons, which was blocked by G(q) and Rnd2 pathway inhibition or LPA(3) knockdown. These findings suggest that the novel signaling pathway involving LPA(3), G(q), and Rnd2 may play an important role in neuronal network formation.
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Affiliation(s)
- Daisuke Furuta
- Division of Molecular Neurobiology, Department of Life Science, Kinki University, Higashiosaka, Japan
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37
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Gendaszewska-Darmach E, Laska E, Rytczak P, Okruszek A. The chemical synthesis of metabolically stabilized 2-OMe-LPA analogues and preliminary studies of their inhibitory activity toward autotaxin. Bioorg Med Chem Lett 2012; 22:2698-700. [PMID: 22460025 DOI: 10.1016/j.bmcl.2012.03.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2012] [Revised: 03/01/2012] [Accepted: 03/02/2012] [Indexed: 01/08/2023]
Abstract
The chemical synthesis of five new metabolically stabilized 2-OMe-LPA analogues (1a-e) possessing different fatty acid residues has been performed by phosphorylation of corresponding 1-O-acyl-2-OMe-glycerols which were prepared by multistep process from racemic glycidol. The now analogues were subjected to biological characterization as autotaxin inhibitors using the FRET-based, synthetic ATX substrate FS-3. Among tested compounds 1-O-oleoyl-2-OMe-LPA (1e) appeared to be the most potent, showing ATX inhibitory activity similar to that of unmodified 1-O-oleoyl-LPA. Parallel testing showed, that similar trend was also observed for corresponding 1-O-acyl-2-OMe-phosphorothioates (2a-e, synthesized as described by us previously). 1-O-oleoyl-2-OMe-LPA (1e) was found to be resistant toward alkaline phosphatase as opposed to unmodified 1-O-oleoyl-LPA.
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Affiliation(s)
- Edyta Gendaszewska-Darmach
- Institute of Technical Biochemistry, Faculty of Biotechnology and Food Sciences, Technical University of Lodz, Lodz, Poland.
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38
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Blaho VA, Hla T. Regulation of mammalian physiology, development, and disease by the sphingosine 1-phosphate and lysophosphatidic acid receptors. Chem Rev 2011; 111:6299-320. [PMID: 21939239 PMCID: PMC3216694 DOI: 10.1021/cr200273u] [Citation(s) in RCA: 113] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Victoria A. Blaho
- Center for Vascular Biology, Department of Pathology and Laboratory Medicine, Weill Medical College of Cornell University, New York, NY 10065
| | - Timothy Hla
- Center for Vascular Biology, Department of Pathology and Laboratory Medicine, Weill Medical College of Cornell University, New York, NY 10065
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39
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Mansell JP, Nowghani M, Pabbruwe M, Paterson IC, Smith AJ, Blom AW. Lysophosphatidic acid and calcitriol co-operate to promote human osteoblastogenesis: requirement of albumin-bound LPA. Prostaglandins Other Lipid Mediat 2011; 95:45-52. [PMID: 21664483 DOI: 10.1016/j.prostaglandins.2011.05.003] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2011] [Revised: 05/17/2011] [Accepted: 05/20/2011] [Indexed: 02/06/2023]
Abstract
Lysophosphatidic acid (LPA), a pleiotropic signalling lipid is assuming growing significance in osteoblast biology. Although committed osteoblasts from several mammalian species are receptive to LPA far less is known about the potential for LPA to influence osteoblast formation from their mesenchymal progenitors. An essential factor for both bone development and post-natal bone growth and homeostasis is the active metabolite of vitamin D3, calcitriol (D3). Previously we reported how a combination of LPA and D3 synergistically co-operated to enhance the differentiation of immature human osteoblasts. Herein we provide evidence for the formation of human osteoblasts from multiple, primary human bone marrow derived stromal (stem) cells (hBMSCs). Importantly osteoblast development from hBMSCs only occurred when LPA was administered as a complex with albumin, its natural carrier. Collectively our findings support a co-operative role of LPA and D3 in osteoblastogenesis, findings which may aid the development of novel treatment strategies for bone repair.
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Affiliation(s)
- J P Mansell
- Musculoskeletal Research Unit, Avon Orthopaedic Centre, Southmead Hospital, Bristol, United Kingdom.
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Parrill AL. Lysophosphatidic acid receptor agonists and antagonists (WO2010051053). Expert Opin Ther Pat 2011; 21:281-6. [PMID: 21222547 DOI: 10.1517/13543776.2011.539206] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Lysophosphatidic acid (LPA) is a bioactive lipid involved in signaling pathways that result in cell survival, proliferation, migration and invasion. These cellular responses are a critical element of both normal development as well as pathophysiology. In particular, dysregulated LPA production and function have been linked with cancer and cardiovascular disease. RxBio, Inc. has generated several series of LPA analogs with varied agonist/antagonist function at the LPA(1-3) GPCR targets of LPA signaling. These analogs are simplified relative to LPA through deletion of the glycerol moiety linking the LPA phosphate and fatty acid groups. One of the example compounds was shown to protect intestinal crypt cells from radiation-induced apoptosis in mice when whole body irradiation occurred 2 h after oral dosing.
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Affiliation(s)
- Abby L Parrill
- The University of Memphis, Department of Chemistry, Memphis, TN 38152, USA.
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East JE, Carter KM, Kennedy PC, Schulte NA, Toews ML, Lynch KR, Macdonald TL. Development of a phosphatase-resistant, L-tyrosine derived LPA1/LPA3 dual antagonist. MEDCHEMCOMM 2011; 2:325-330. [PMID: 22180836 DOI: 10.1039/c0md00273a] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Lysophosphatidic acid (LPA) is a bioactive compound that has gained attention due to its role in neoplastic diseases. Our group has developed a potent dual LPA1/LPA3 receptor antagonist, VPC51098 (LPA1 IC(50) = 84 nM, LPA1 IC(50) = 48 nM) that contained a labile phosphate head group. This lability has impaired our evaluation of our scaffold of LPA receptor antagonists in vivo. We wished to replace the phosphate with a potentially more stable head group while retaining potency at both LPA1 and LPA3 to facilitate future in vivo studies. We tested in vitro potency of all head groups including α-methylene, α-fluoromethylene, α-hydroxymethylene; vinyl phosphonates; α-fluoro vinyl phosphonates. The most potent compound was found to be a low micromolar inhibitor VPC51299 that contained a vinyl phosphonate and possessed a half-life of approximately 90 min in rats when dosed intravenously. Herein, we describe the synthesis and initial biological evaluation of these compounds.
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Affiliation(s)
- James E East
- Department of Chemistry, University of Virginia, PO Box 400319, McCormick Road, Charlottesville, VA 22904, USA; Tel: +1-434-924-0595
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Chun J, Hla T, Lynch KR, Spiegel S, Moolenaar WH. International Union of Basic and Clinical Pharmacology. LXXVIII. Lysophospholipid receptor nomenclature. Pharmacol Rev 2010; 62:579-87. [PMID: 21079037 PMCID: PMC2993255 DOI: 10.1124/pr.110.003111] [Citation(s) in RCA: 246] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Lysophospholipids are cell membrane-derived lipids that include both glycerophospholipids such as lysophosphatidic acid (LPA) and sphingoid lipids such as sphingosine 1-phosphate (S1P). These and related molecules can function in vertebrates as extracellular signals by binding and activating G protein-coupled receptors. There are currently five LPA receptors, along with a proposed sixth (LPA₁-LPA₆), and five S1P receptors (S1P₁-S1P₅). A remarkably diverse biology and pathophysiology has emerged since the last review, driven by cloned receptors and targeted gene deletion ("knockout") studies in mice, which implicate receptor-mediated lysophospholipid signaling in most organ systems and multiple disease processes. The entry of various lysophospholipid receptor modulatory compounds into humans through clinical trials is ongoing and may lead to new medicines that are based on this signaling system. This review incorporates IUPHAR Nomenclature Committee guidelines in updating the nomenclature for lysophospholipid receptors ( http://www.iuphar-db.org/DATABASE/FamilyMenuForward?familyId=36).
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Affiliation(s)
- Jerold Chun
- Department of Molecular Biology, The Scripps Research Institute, 10550 N. Torrey Pines Rd., La Jolla, CA 92037, USA.
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The GPR55 agonist lysophosphatidylinositol acts as an intracellular messenger and bidirectionally modulates Ca2+ -activated large-conductance K+ channels in endothelial cells. Pflugers Arch 2010; 461:177-89. [PMID: 21072666 PMCID: PMC3014879 DOI: 10.1007/s00424-010-0898-x] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2010] [Revised: 10/08/2010] [Accepted: 10/25/2010] [Indexed: 02/03/2023]
Abstract
Lysophospholipids are known to serve as intra- and extracellular messengers affecting many physiological processes. Lysophosphatidylinositol (LPI), which is produced in endothelial cells, acts as an endogenous agonist of the orphan receptor, G protein-coupled receptor 55 (GPR55). Stimulation of GPR55 by LPI evokes an intracellular Ca2+ rise in several cell types including endothelial cells. In this study, we investigated additional direct, receptor-independent effects of LPI on endothelial large-conductance Ca2+ and voltage-gated potassium (BKCa) channels. Electrophysiological experiments in the inside-out configuration revealed that LPI directly affects the BKCa channel gating properties. This effect of LPI strictly depended on the presence of Ca2+ and was concentration-dependent, reversible, and dual in nature. The modulating effects of LPI on endothelial BKCa channels correlated with their initial open probability (Po): stimulation at low Po (<0.3) and inhibition at high Po levels (>0.3). In the whole-cell configuration, LPI in the pipette facilitated membrane hyperpolarization in response to low (0.1–2 μM) histamine concentrations. In contrast, LPI counteracted membrane hyperpolarization in response to supramaximal cell stimulation with histamine. These results highlight a novel receptor-independent and direct bidirectional modulation of BKCa channels by LPI on endothelial cells. We conclude that LPI via this mechanism serves as an important modulator of endothelial electrical responses to cell stimulation.
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Im DS. Pharmacological tools for lysophospholipid GPCRs: development of agonists and antagonists for LPA and S1P receptors. Acta Pharmacol Sin 2010; 31:1213-22. [PMID: 20729877 DOI: 10.1038/aps.2010.135] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Previous studies on lysophosphatidic acid (LPA) and sphingosine 1-phosphate (S1P) using various approaches have shown that both the molecules can act as intercellular signaling molecules. The discovery of the Edg subfamily of G-protein-coupled receptors (GPCRs) (later renamed LPA(1-3) and S1P(1-5)) for these molecules has opened up a new avenue for pathophysiological research on lysophospholipids. Genetic and molecular studies on lysophospholipid GPCRs have elucidated pathophysiological impacts and roles in cellular signaling pathways. Recently, lysophospholipid GPCR genes have been used to develop receptor subtype-selective agonists and antagonists. The discovery of FTY720, a novel immune modulator, along with other chemical tools, has provided a means of elucidating the functions of each lysophospholipid GPCR on an organ and the whole body level. This communication attempts to retrospectively review the development of agonists and antagonists for lysophospholipid GPCRs, provide integrated information on pharmacological tools for lysophospholipid GPCR signaling, and speculate on future drug development.
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Kosanam H, Ma F, He H, Ramagiri S, Gududuru V, Tigyi GJ, Van Rompay K, Miller DD, Yates CR. Development of an LC-MS/MS assay to determine plasma pharmacokinetics of the radioprotectant octadecenyl thiophosphate (OTP) in monkeys. J Chromatogr B Analyt Technol Biomed Life Sci 2010; 878:2379-83. [PMID: 20719582 DOI: 10.1016/j.jchromb.2010.07.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2010] [Revised: 06/28/2010] [Accepted: 07/08/2010] [Indexed: 10/19/2022]
Abstract
Octadecenyl thiophosphate (OTP), a synthetic analogue of the lysophospholipid growth factor lysophosphatidic acid (LPA), significantly reduces mortality following a lethal dose of LD(80/30) radiation exposure in a mouse model of whole-body irradiation. To facilitate dose scaling between species, we developed a novel liquid chromatography/tandem mass spectrometry (LC-MS/MS) for the preclinical pharmacokinetic characterization of OTP in monkeys. Sample extraction was carried out using a butanol based liquid-liquid extraction method. A partially deuterated OTP analogue was used as internal standard (IS). OTP and IS were separated by reversed-phase liquid chromatography on a C-8 column using 10mM ammonium acetate and acetonitrile. A triple quadrupole mass spectrometer operating in the negative electrospray ionization mode with multiple reaction monitoring was used to detect OTP and IS transitions of m/z 363.1-->95.0 and 403.1-->95.0. The method was applied to determine pharmacokinetic parameters in monkeys receiving a single oral OTP dose (3mg/kg). OTP is readily absorbed with a relatively long half-life which supports further preclinical testing of OTP as a radioprotectant in monkeys.
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Affiliation(s)
- Hari Kosanam
- Department of Pathology and Laboratory Medicine, Mount Sinai Hospital, Advanced Cancer Detection Center, Samuel Lunenfeld Research Institute, Toronto, ON, Canada
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Altman MK, Gopal V, Jia W, Yu S, Hall H, Mills GB, McGinnis AC, Bartlett MG, Jiang G, Madan D, Prestwich GD, Xu Y, Davies MA, Murph MM. Targeting melanoma growth and viability reveals dualistic functionality of the phosphonothionate analogue of carba cyclic phosphatidic acid. Mol Cancer 2010; 9:140. [PMID: 20529378 PMCID: PMC2895597 DOI: 10.1186/1476-4598-9-140] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2009] [Accepted: 06/09/2010] [Indexed: 02/03/2023] Open
Abstract
BACKGROUND Although the incidence of melanoma in the U.S. is rising faster than any other cancer, the FDA-approved chemotherapies lack efficacy for advanced disease, which results in poor overall survival. Lysophosphatidic acid (LPA), autotaxin (ATX), the enzyme that produces LPA, and the LPA receptors represent an emerging group of therapeutic targets in cancer, although it is not known which of these is most effective. RESULTS Herein we demonstrate that thio-ccPA 18:1, a stabilized phosphonothionate analogue of carba cyclic phosphatidic acid, ATX inhibitor and LPA1/3 receptor antagonist, induced a marked reduction in the viability of B16F10 metastatic melanoma cells compared with PBS-treated control by 80-100%. Exogenous LPA 18:1 or D-sn-1-O-oleoyl-2-O-methylglyceryl-3-phosphothioate did not reverse the effect of thio-ccPA 18:1. The reduction in viability mediated by thio-ccPA 18:1 was also observed in A375 and MeWo melanoma cell lines, suggesting that the effects are generalizable. Interestingly, siRNA to LPA3 (siLPA3) but not other LPA receptors recapitulated the effects of thio-ccPA 18:1 on viability, suggesting that inhibition of the LPA3 receptor is an important dualistic function of the compound. In addition, siLPA3 reduced proliferation, plasma membrane integrity and altered morphology of A375 cells. Another experimental compound designed to antagonize the LPA1/3 receptors significantly reduced viability in MeWo cells, which predominantly express the LPA3 receptor. CONCLUSIONS Thus the ability of thio-ccPA 18:1 to inhibit the LPA3 receptor and ATX are key to its molecular mechanism, particularly in melanoma cells that predominantly express the LPA3 receptor. These observations necessitate further exploration and exploitation of these targets in melanoma.
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Affiliation(s)
- Molly K Altman
- Department of Pharmaceutical and Biomedical Sciences, The University of Georgia, College of Pharmacy, 250 W. Green Street, Athens, Georgia 30602, USA
| | - Vashisht Gopal
- Department of Melanoma Medical Oncology, The University of Texas MD Anderson Cancer Center, 7455 Fannin, 1 SCRB 2.3019, Houston, TX 77054, USA
| | - Wei Jia
- Department of Pharmaceutical and Biomedical Sciences, The University of Georgia, College of Pharmacy, 250 W. Green Street, Athens, Georgia 30602, USA
| | - Shuangxing Yu
- Department of Systems Biology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd., Houston, TX 77030, USA
| | - Hassan Hall
- Department of Systems Biology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd., Houston, TX 77030, USA
| | - Gordon B Mills
- Department of Systems Biology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd., Houston, TX 77030, USA
| | - A Cary McGinnis
- Department of Pharmaceutical and Biomedical Sciences, The University of Georgia, College of Pharmacy, 250 W. Green Street, Athens, Georgia 30602, USA
| | - Michael G Bartlett
- Department of Pharmaceutical and Biomedical Sciences, The University of Georgia, College of Pharmacy, 250 W. Green Street, Athens, Georgia 30602, USA
| | - Guowei Jiang
- Department of Medicinal Chemistry, The University of Utah, 419 Wakara Way, Suite 205, Salt Lake City, UT 84108, USA
| | - Damian Madan
- Echelon Biosciences Inc., 675 Arapeen Dr., Suite 302, Salt Lake City, UT 84108, USA
| | - Glenn D Prestwich
- Department of Medicinal Chemistry, The University of Utah, 419 Wakara Way, Suite 205, Salt Lake City, UT 84108, USA
| | - Yong Xu
- Department of Medicinal Chemistry, The University of Utah, 419 Wakara Way, Suite 205, Salt Lake City, UT 84108, USA
| | - Michael A Davies
- Department of Melanoma Medical Oncology, The University of Texas MD Anderson Cancer Center, 7455 Fannin, 1 SCRB 2.3019, Houston, TX 77054, USA
| | - Mandi M Murph
- Department of Pharmaceutical and Biomedical Sciences, The University of Georgia, College of Pharmacy, 250 W. Green Street, Athens, Georgia 30602, USA
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Holmström TE, Mattsson CL, Wang Y, Iakovleva I, Petrovic N, Nedergaard J. Non-transactivational, dual pathways for LPA-induced Erk1/2 activation in primary cultures of brown pre-adipocytes. Exp Cell Res 2010; 316:2664-75. [PMID: 20576526 DOI: 10.1016/j.yexcr.2010.05.029] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2010] [Revised: 05/21/2010] [Accepted: 05/24/2010] [Indexed: 12/17/2022]
Abstract
In many cell types, G-protein-coupled receptor (GPCR)-induced Erk1/2 MAP kinase activation is mediated via receptor tyrosine kinase (RTK) transactivation, in particular via the epidermal growth factor (EGF) receptor. Lysophosphatidic acid (LPA), acting via GPCRs, is a mitogen and MAP kinase activator in many systems, and LPA can regulate adipocyte proliferation. The mechanism by which LPA activates the Erk1/2 MAP kinase is generally accepted to be via EGF receptor transactivation. In primary cultures of brown pre-adipocytes, EGF can induce Erk1/2 activation, which is obligatory and determinant for EGF-induced proliferation of these cells. Therefore, we have here examined whether LPA, via EGF transactivation, can activate Erk1/2 in brown pre-adipocytes. We found that LPA could induce Erk1/2 activation. However, the LPA-induced Erk1/2 activation was independent of transactivation of EGF receptors (or PDGF receptors) in these cells (whereas in transformed HIB-1B brown adipocytes, the LPA-induced Erk1/2 activation indeed proceeded via EGF receptor transactivation). In the brown pre-adipocytes, LPA instead induced Erk1/2 activation via two distinct non-transactivational pathways, one G(i)-protein dependent, involving PKC and Src activation, the other, a PTX-insensitive pathway, involving PI3K (but not Akt) activation. Earlier studies showing LPA-induced Erk1/2 activation being fully dependent on RTK transactivation have all been performed in cell lines and transfected cells. The present study implies that in non-transformed systems, RTK transactivation may not be involved in the mediation of GPCR-induced Erk1/2 MAP kinase activation.
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Affiliation(s)
- Therese E Holmström
- Department of Physiology, The Wenner-Gren Institute, Stockholm University, SE-106 91 Stockholm, Sweden
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Abstract
Lysophosphatidic acid (LPA; 1- or 2-acyl-sn-glycerol-3-phosphate) is a phospholipid that is involved in numerous normal physiological and pathological processes such as brain development, blood vessel formation, embryo implantation, hair growth, neuropathic pain, lung fibrosis and colon cancer. Most of these functions are mediated by G protein-coupled receptors (GPCRs) specific to LPA. So far, six GPCRs for LPA have been identified: LPA(1)/Edg2, LPA(2)/Edg4, LPA(3)/Edg7, LPA(4)/GPR23/P2Y9, LPA(5)/GPR92 and LPA(6)/P2Y5. An intracellular target of LPA has also been proposed. Among the LPA receptors, LPA(3) is unique in that it is activated significantly by a specific form of LPA (2-acyl LPA with unsaturated fatty acids) and is expressed in a limited number of tissues such as the reproductive organs. Recent studies have shown that LPA(3)-mediated LPA signaling is essential for proper embryo implantation and have revealed an unexpected genetic linkage between LPA and prostaglandin signaling. Here we review recent advances in the study of LPA(3), especially studies using LPA(3)-deficient mice. In addition, we focus on the agonists and antagonists that are specific to each LPA receptor as important tools for the functional study of LPA signaling.
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Affiliation(s)
- Kotaro Hama
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3, Aoba, Aramaki, Aoba-ku, Sendai, Miyagi, Japan
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Rytczak P, Koziołkiewicz M, Okruszek A. The chemical synthesis of phosphorothioate and phosphorodithioate analogues of lysophosphatidic acid (LPA) and cyclic phosphatidic acid (CPA). NEW J CHEM 2010. [DOI: 10.1039/b9nj00704k] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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