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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] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [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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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] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 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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Yashiro N, Takai M, Yamamoto M, Amano Y, Hara K, Tsujiuchi T. Effects of free fatty acid receptor (FFAR) signaling on the modulation of cancer cell functions under hypoxic conditions. Biochem Biophys Res Commun 2024; 699:149554. [PMID: 38280308 DOI: 10.1016/j.bbrc.2024.149554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Accepted: 01/18/2024] [Indexed: 01/29/2024]
Abstract
In the tumor environment, hypoxia promotes tumor progression, such as cancer cell growth, migration and chemoresistance. This study aimed to evaluate the roles of free fatty acid receptors (FFARs) in the regulation of cancer cell functions under hypoxic conditions, using fibrosarcoma HT1080 cells. HT1080 cells expressed FFAR1, FFAR2 and FFAR3 genes, but not FFAR4 gene. FFAR1, FFAR2 and FFAR3 expression levels in HT1080 cells cultured at 1 % O2 were elevated, compared with 21 % O2. The cell growth activities of HT1080 cells cultured at 21 % O2 were inhibited by acetic acid (AA) and propanoic acid (PA), but not 1 % O2. HT1080 cell motility was markedly reduced by culturing at 1 % O2. The cell growth and motility of HT1080 cells were enhanced by FFAR2 knockdown. The cell viability to cisplatin (CDDP) of HT1080 cells cultured at 1 % O2 was increased, compared with 21 % O2. FFAR2 knockdown suppressed the cell viability to CDDP of HT1080 cells. On the other hand, the cell motility and viability to CDDP of HT1080 cells cultured at 21 % O2 were suppressed by TUG-770. When HT1080 cells were cultured at 1 % O2, the cell motility and viability to CDDP were decreased, correlating with FFAR1 expression level. Moreover, FFAR1 knockdown increased the cell viability to CDDP of HT1080 cells cultured at 1 % O2. These results suggest that FFAR-mediated signaling plays an important role in the modulation of cellular functions of HT1080 cells under hypoxic conditions.
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Affiliation(s)
- 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
| | - 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
| | - 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
| | - 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] [What about the content of this article? (0)] [Affiliation(s)] [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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Ikeda H, Takai M, Tsujiuchi T. Lysophosphatidic acid (LPA) receptor-mediated signaling and cellular responses to anticancer drugs and radiation of cancer cells. Adv Biol Regul 2024; 92:101029. [PMID: 38377635 DOI: 10.1016/j.jbior.2024.101029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Revised: 01/30/2024] [Accepted: 02/08/2024] [Indexed: 02/22/2024]
Abstract
Lysophosphatidic acid (LPA) is a simple physiological lipid and structurally consists of a fatty, a phosphate and a glycerol. LPA binds to G protein-coupled LPA receptors (LPA1 to LPA6). LPA receptor-mediated signaling mediates a variety of biological responses, such as cell growth, migration, morphogenesis, differentiation and protection from apoptosis. It is considered that LPA receptor-mediated signaling plays an important role in the pathogenesis of human malignancies. So far, genetic and epigenetic alterations of LPA receptors have been found in several cancer cells as well as abnormal LPA production. In addition, LPA receptor-mediated signaling regulates the promotion of malignant behaviors, including chemo- and/or radiation-resistance. Chemotherapy and radiotherapy are the common approaches to the treatments of cancers. However, resistance to anticancer drugs and irradiation is the most critical limitation for chemotherapy and radiotherapy. In this review, we provide the roles of LPA receptor-mediated signaling in the regulation of cellular responses induced by chemotherapeutic agents and irradiation and its biological utility as a possible molecular target for improving cancer cell responses to chemotherapy and radiotherapy.
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Affiliation(s)
- Hiroko Ikeda
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Miwa Takai
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Toshifumi Tsujiuchi
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan.
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Honoki K, Tsujiuchi T, Kishi S, Kuniyasu H. Revisiting 'Hallmarks of Cancer' In Sarcomas. J Cancer 2024; 15:1786-1804. [PMID: 38434982 PMCID: PMC10905407 DOI: 10.7150/jca.92844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2023] [Accepted: 01/08/2024] [Indexed: 03/05/2024] Open
Abstract
There is no doubt that anyone who has participated in cancer care or research has once read the 'Hallmarks of Cancer' papers published by Hanahan and Weinberg in 2001 and 2011. They initially defined the six qualities of cancer cells as cancer hallmarks in 2001, but expanded that to 11 as a next generation in 2011. In their papers, they discussed the potential treatment strategies against cancer corresponding to each of the 11 hallmarks, and to date, proposed therapies that target genes and signaling pathways associated with each of these hallmarks have guided a trail that cancer treatments should take, some of which are now used as standard in clinical practice and some of which have yet to progress that far. Along with the recent advances in cancer research such as genomic analysis with next generation sequencing, they can be reconverged to an alternative six categories defined as selective proliferative advantages, altered stress response, deregulated cellular metabolism, immune modulation and inflammation, tumor microenvironment, tissue invasion and metastasis. In this paper, we will overview the current state of these alternative hallmarks and their corresponding treatments in the current sarcoma practice, then discuss the future direction of sarcoma treatment.
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Affiliation(s)
- Kanya Honoki
- Dept. Of Orthopedic Oncology & Reconstructive Medicine, Nara Medical University, Japan
| | | | - Shingo Kishi
- Dept. of Clinical Pathology, Nozaki Tokushukai Hospital, Japan
| | - Hiroki Kuniyasu
- Dept. of Molecular Pathology, Nara Medical University, Japan
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Okuda A, Takai M, Kurisu R, Takamoto M, Ikeda H, Tsujiuchi T. Roles of lysophosphatidic acid (LPA) receptor-2 (LPA 2) in the regulation of cellular responses induced by X-ray irradiation and hydrogen peroxide in pancreatic cancer cells. Int J Radiat Biol 2023; 99:1925-1933. [PMID: 37523658 DOI: 10.1080/09553002.2023.2241890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 06/10/2023] [Accepted: 07/10/2023] [Indexed: 08/02/2023]
Abstract
PURPOSE Lysophosphatidic acid (LPA) receptor-mediated signaling regulates various biological functions in cancer cells. This study aimed to evaluate the roles of LPA receptor-2 (LPA2) in cellular responses induced by X-ray irradiation in pancreatic cancer PANC-1 cells. Since X-ray irradiation generates reactive oxygen species (ROS), PANC-1 cells were treated with hydrogen peroxide (H2O2). H2O2 is a key member of ROS. METHODS To investigate the cell survival rate to X-ray irradiation, PANC-1 cells were irradiated with X-rays (2.5-15 Gy). LPAR2 expression levels were measured by quantitative real-time RT-PCR analysis. The effects of LPA2 on the cell survival and motility were evaluated using LPA2 knockdown cells. To establish H2O2 treated cells, PANC-1 cells were cultured in 10% FBS-DMEM with H2O2 (30 µM) for 2 weeks. The cell motility and survival rate to cisplatin (CDDP) of H2O2 treated cells were examined. RESULTS LPAR2 expression was significantly increased in PANC-1 cells irradiated with X-rays. PANC-1 cell motility was markedly decreased by X-ray irradiation. The reduced cell motility activity by X-ray irradiation was enhanced by LPA2 knockdown. The cell survival to X-ray irradiation was elevated in PANC-1 cells treated with GRI-977143 (LPA2 agonist) and suppressed by LPA2 knockdown. On the other hand, LPAR2 expression was markedly higher in H2O2 treated cells than in H2O2 untreated cells. H2O2 treated cells showed the high cell survival to CDDP in comparison with H2O2 untreated cells. GRI-977143 increased the cell survival to CDDP of H2O2 treated cells, while LPA2 knockdown suppressed. CONCLUSIONS The present results suggest that the activation of LPA2-mediated signaling plays an important role in the modulation of cellular functions induced by X-ray irradiation and H2O2 in PANC-1 cells.
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Affiliation(s)
- Aya Okuda
- Department of Life Science, Division of Molecular Oncology, Faculty of Science and Engineering, Kindai University, Higashiosaka, Japan
| | - Miwa Takai
- Department of Life Science, Division of Molecular Oncology, Faculty of Science and Engineering, Kindai University, Higashiosaka, Japan
| | - Rio Kurisu
- Department of Life Science, Division of Molecular Oncology, Faculty of Science and Engineering, Kindai University, Higashiosaka, Japan
| | - Miyu Takamoto
- Department of Life Science, Division of Molecular Oncology, Faculty of Science and Engineering, Kindai University, Higashiosaka, Japan
| | - Hiroko Ikeda
- Department of Life Science, Division of Molecular Oncology, Faculty of Science and Engineering, Kindai University, Higashiosaka, Japan
| | - Toshifumi Tsujiuchi
- Department of Life Science, Division of Molecular Oncology, Faculty of Science and Engineering, Kindai University, Higashiosaka, Japan
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Takai M, Takamoto M, Amano Y, Yamamoto M, Hara K, Yashiro N, Tsujiuchi T. Induction of lysophosphatidic acid (LPA) receptor-mediated signaling regulates cell motility and survival to anticancer drugs in cancer cells treated with hydrogen peroxide. Adv Biol Regul 2023; 89:100978. [PMID: 37603941 DOI: 10.1016/j.jbior.2023.100978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 08/06/2023] [Accepted: 08/16/2023] [Indexed: 08/23/2023]
Abstract
Hydrogen peroxide (H2O2) is one of reactive oxygen species (ROS) and promotes malignant properties of cancer cells. Lysophosphatidic acid (LPA) signaling via LPA receptor (LPA1 to LPA6) regulates a variety of cellular functions, such as cell growth, migration and differentiation. This study aimed to evaluate the effects of LPA receptors on the cell motility and survival to anticancer drugs by H2O2 in colon cancer DLD-1 cells. To obtain H2O2 treated (DLD- H2O2) cells, cells were maintained in culture medium containing H2O2 (60 μM) for 2 months. LPAR2 and LPAR4 gene expressions were markedly elevated in DLD-H2O2 cells. The cell motility of DLD-H2O2 cells was significantly lower than that of DLD-1 cells. DLD-H2O2 cell motility was suppressed by LPA2 knockdown and stimulated by LPA4 knockdown. The cell survival rates to fluorouracil (5-FU), irinotecan (CPT-11) and oxaliplatin (L-OHP) of DLD-H2O2 cells were significantly higher than those of DLD-1 cells. The cell survival rate to 5-FU of DLD-H2O2 cells was decreased by LPA2 knockdown. Conversely, LPA4 knockdown enhanced the cell survival rate to 5-FU of DLD-H2O2 cells. In the tumor microenvironment, high levels of H2O2 production are observed under hypoxic conditions. The cell survival rate to 5-FU of DLD-H2O2 cells cultured at 1% O2 was significantly higher than that of DLD-1 cells cultured at 1% O2, correlating with LPAR2 gene expression. The present results suggest that the induction of LPA receptor-mediated signaling plays an important role in regulating cellular functions of DLD-1 cells treated with H2O2.
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Affiliation(s)
- Miwa Takai
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka, 577-8502, Japan
| | - Miyu Takamoto
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka, 577-8502, Japan
| | - Yuka Amano
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka, 577-8502, Japan
| | - Mao Yamamoto
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka, 577-8502, Japan
| | - Koki Hara
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka, 577-8502, Japan
| | - Narumi Yashiro
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka, 577-8502, Japan
| | - Toshifumi Tsujiuchi
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka, 577-8502, Japan.
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Takai M, Okuda A, Amano Y, Yashiro N, Hara K, Yamamoto M, Tsujiuchi T. Effects of LPA receptor-mediated signaling on the modulation of cellular functions of pancreatic cancer cells cultured in fibroblast supernatants under hypoxic conditions. J Bioenerg Biomembr 2023:10.1007/s10863-023-09969-4. [PMID: 37219648 DOI: 10.1007/s10863-023-09969-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [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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Takai M, Takauchi M, Kuribayashi M, Tsujiuchi T. LPA receptor-mediated signaling regulates cell motility and survival to anticancer drug of pancreatic cancer cells under glucose-deprived and hypoxic conditions. Biochem Biophys Res Commun 2023; 661:21-27. [PMID: 37084489 DOI: 10.1016/j.bbrc.2023.04.036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 04/05/2023] [Accepted: 04/14/2023] [Indexed: 04/23/2023]
Abstract
In tumor microenvironment, cancer cells can adapt to low conditions of nutrients and oxygen. Lysophosphatidic acid (LPA) receptor-mediated signaling is involved in the promotion of malignant properties in cancer cells. In the present study, to examine the roles of LPA receptors in the regulation of cell motility and survival to cisplatin (CDDP) of pancreatic cancer PANC-1 cells under glucose-deprived and hypoxic conditions, cells were cultured in 4500 mg/L high glucose (HG)-DMEM, 500 mg/L middle glucose (MG)-DMEM and 100 mg/L low glucose (LG)-DMEM at 21% and 1% O2. The expression levels of LPAR1 and LPAR2 genes in cells cultured in MG-DMEM and LG-DMEM were significantly elevated, compared with HG-DMEM cells. The cell motility and survival rate to CDDP of cells cultured in MG-DMEM and LG-DMEM were significantly lower than those of cells cultured in HG-DMEM. The cell survival to CDDP was enhanced by LPA1 knockdown and suppressed by LPA2 knockdown. Under hypoxic conditions (1% O2), LPAR1, LPAR2 and LPAR3 expressions were markedly higher in cells cultured in MG-DMEM and LG-DMEM than in cells cultured in HG-DMEM. The cell survival rates to CDDP of cells cultured in MG-DMEM and LG-DMEM were elevated in comparison with HG-DMEM. The cell survival to CDDP was reduced by LPA3 knockdown. These results suggest that LPA receptor-mediated signaling is involved in the regulation of malignant properties of PANC-1 cells under glucose-deprived and 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
| | - Minori Takauchi
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka, 577-8502, Japan
| | - Mako Kuribayashi
- 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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11
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Kado T, Kusakari N, Tamaki T, Murota K, Tsujiuchi T, Fukushima N. Oleic acid stimulates cell proliferation and BRD4-L-MYC-dependent glucose transporter transcription through PPARα activation in ovarian cancer cells. Biochem Biophys Res Commun 2023; 657:24-34. [PMID: 36965420 DOI: 10.1016/j.bbrc.2023.03.051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Accepted: 03/17/2023] [Indexed: 03/27/2023]
Abstract
Fatty acids (FAs) play important roles in cell membrane structure maintenance, energy production via β-oxidation, and as extracellular signaling molecules. Prior studies have demonstrated that exposure of cancer cells to FAs affects cell survival, cell proliferation, and cell motility. Oleic acid (OA) has somewhat controversial effects in cancer cells, with both pro- and anti-cancer effects, depending on cell type. Our prior findings suggested that OA enhances cell survival in serum starved HNOA ovarian cancer cells by activating glycolysis, but not β-oxidation. Here, we pharmacologically examined the cellular mechanisms by which OA stimulates glycolysis in HNOA cells. OA induced cell cycle progression, leading to increase in cell number through peroxisome proliferator activated receptor (PPAR) α activation. OA-induced glycolysis was mediated by increased GLUT expression, and increases in GLUT expression were mediated by increased L-MYC expression. Furthermore, L-MYC expression was due to BRD4 activation. These findings suggested involvement of the BRD4-L-MYC-GLUT axis in OA-stimulated glycolysis. These results suggested that OA could activate PPARα to stimulate two pathways: glycolysis and cell cycle progression, and provided insight into the role of OA in ovarian cancer cell growth.
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Affiliation(s)
- Tsuyoshi Kado
- Division of Molecular Neurobiology, Department of Life Science, Kindai University, Higashiosaka, Japan
| | - Naoki Kusakari
- Division of Molecular Neurobiology, Department of Life Science, Kindai University, Higashiosaka, Japan
| | - Takeru Tamaki
- Division of Molecular Neurobiology, Department of Life Science, Kindai University, Higashiosaka, Japan
| | - Kaeko Murota
- Division of Food and Nutritional Chemistry, Department of Life Science, Kindai University, Higashiosaka, Japan
| | - Toshifumi Tsujiuchi
- Division of Molecular Oncology, Department of Life Science, Kindai University, Higashiosaka, Japan
| | - Nobuyuki Fukushima
- Division of Molecular Neurobiology, Department of Life Science, Kindai University, Higashiosaka, Japan.
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12
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Kurisu R, Takai M, Takamoto M, Tsujiuchi T. Effects of free fatty acid receptor-2 (FFAR2)-mediated signaling on the regulation of cellular functions in osteosarcoma cells. Biochem Biophys Res Commun 2023; 646:56-62. [PMID: 36706706 DOI: 10.1016/j.bbrc.2023.01.067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Accepted: 01/20/2023] [Indexed: 01/22/2023]
Abstract
G protein coupled free fatty acid receptors (FFARs) are involved in the pathogenesis of several human diseases. FFAR2 and FFAR3 are activated by the binding of short-chain fatty acids (SCFAs). This study aimed to evaluate the roles of FFAR2 in the regulation of cellular functions in osteosarcoma HOS cells, using acetic acid and propanoic acid as FFAR2 and FFAR3 agonists. FFAR2 and FFAR3 genes were expressed in HOS cells. The cell motile activity of HOS cells was significantly stimulated by acetic acid and propanoic acid. In contrast, acetic acid and propanoic acid had no impact on the activation of matrix metalloproteinase-2 (MMP-2) and MMP-9. In cell survival assay, the cell survival rate to cisplatin (CDDP) of HOS cells was elevated by acetic acid and propanoic acid. To assess the effects of FFAR2 on cellular functions, FFAR2 knockdown (HOS-FFAR2) cells were generated from HOS cells. The cell motile activity of HOS-FFAR2 cells was enhanced by acetic acid and propanoic acid. In the presence of acetic acid and propanoic acid, MMP-2 and MMP-9 activities were reduced in HOS-FFAR2 cells, compared with control cells. When cells were treated with acetic acid and propanoic acid, the cell survival rate to CDDP of HOS-FFAR2 cells was significantly lower than that of control cells. These results suggest that activation of FFAR2-mediated signaling is involved in the modulation of cellular functions in HOS cells.
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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, 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
| | - 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
| | - Toshifumi Tsujiuchi
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka, 577-8502, Japan.
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13
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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] [What about the content of this article? (0)] [Affiliation(s)] [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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Tsuchiya Y, Tsujiuchi T, Iwagami T, Ogiwara A, Tanaka Y. Long time psychological distress affected by the Great East Japan Earthquake after four years. Eur J Public Health 2021. [DOI: 10.1093/eurpub/ckab165.611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
On March 11th, 2011, the Great East Japan Earthquake hit the Tohoku area, and more than 15,000 people lost their lives by the tsunami and earthquake. People who survived natural disasters, terrors, or serious diseases reported long-time psychological distress such as PTSD (Post Traumatic Stress Syndrome) or depression. This study aims to elaborate on factors associated with PTSD post the Great East Japan Earthquake after four years.
Methods
Quantitative and qualitative analysis from a questionnaire survey conducted after four years of the earthquake in 2015. The questionnaires included participants' attributes, IES-R scale to evaluate PTSD, loss of their families by tsunami and earthquake, their own tsunami experience, many relocations after the earthquake, lost job after the earthquake. The open-ended question asked them to write about their challenges in their lives and others.
Results
We received 3465 responses. Among those who responded, the IES-R scale was significantly larger in women (n = 1397) (aOR=1.55, p = 0.001) than men (n = 1966). Higher in those with more their own tsunami experience (aOR=1.35, p = 0.014), in those with lost loved ones (aOR=2.1, p < 0.01), and in those with more economic difficulties (aOR=1.6, p < 0.001). In addition, those with less social connectedness (aOR=1.34, p = 0.017) and forced to live separately with family members after the earthquake(aOR=1.36, p = 0.014) were significantly higher in the scale. From a quality analysis, we observed much psychological distress from participants.
Discussion and Conclusions
In this study, more than half in the PTSD risk group reported that they had never cared for mental pain after the earth quake. We overlook PTSD frequently. However, long-range monitoring and care are necessary for those affected by a significant disaster.
Key messages
PTSD after disasters have been overlooked frequently. A long-range monitoring and care are necessary after a significant disaster.
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Affiliation(s)
- Y Tsuchiya
- Advanced Research Center for Human Sciences, Waseda University, Tokorozawa-shi, Japan
| | - T Tsujiuchi
- Faculty of Human Science, Waseda University, Tokorozawa-shi, Japan
| | - T Iwagami
- Faculty of Human Science, Waseda University, Tokorozawa-shi, Japan
| | - A Ogiwara
- Faculty of Human Science, Waseda University, Tokorozawa-shi, Japan
| | - Y Tanaka
- Philosophy, Politics, and Economics, Waseda University, Tokyo, Japan
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15
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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] [What about the content of this article? (0)] [Affiliation(s)] [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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Ishimoto K, Minami A, Minami K, Ueda N, Tsujiuchi T. Different effects of lysophosphatidic acid receptor-2 (LPA 2) and LPA 5 on the regulation of chemoresistance in colon cancer cells. J Recept Signal Transduct Res 2020; 41:93-98. [PMID: 32672083 DOI: 10.1080/10799893.2020.1794002] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Lysophosphatidic acid (LPA) is a simple physiological lipid and exhibits several biological functions by binding to G-protein-coupled LPA receptors (LPA receptor-1 (LPA1) to LPA6). The present study aimed to evaluate whether LPA signaling via LPA2 and LPA5 is involved in the chemoresistance to anticancer drugs in colon cancer DLD1 cells. In cell survival assay, cells were treated with fluorouracil (5-FU) every 24 h for 2 days. The cell survival rate to 5-FU of DLD1 cells was significantly decreased by LPA treatment. In the presence of LPA, the cell survival rate to 5-FU was significantly elevated by LPA5 knockdown. Before initiation of the cell survival assay, cells were pretreated with an LPA2 agonist, GRI-977143. The cell survival rate to 5-FU was markedly increased in DLD1 cells treated with GRI-977143. In the presence of GRI-977143, the elevated cell survival rate of DLD1 cells was reduced by LPA2 knockdown. To assess the effects of LPA2 and LPA5 on the enhancement of chemoresistance, long-term 5-FU treated (DLD-5FU) cells were generated from DLD1 cells. The cell survival rate to 5-FU of DLD-5FU cells were significantly elevated by LPA5 knockdown. GRI-977143 treatment increased the cell survival rate to 5-FU of DLD-5FU cells. These results suggest that LPA2 promotes and LPA5 suppresses the acquisition of chemoresistance in colon cancer cells treated with anticancer drugs.
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Affiliation(s)
- Kaichi Ishimoto
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, Higashiosaka, Osaka, Japan
| | - Akito Minami
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, Higashiosaka, Osaka, Japan
| | - Kanako Minami
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, Higashiosaka, Osaka, Japan
| | - Nanami Ueda
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, Higashiosaka, Osaka, Japan
| | - Toshifumi Tsujiuchi
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, Higashiosaka, Osaka, Japan
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Minami K, Ueda N, Ishimoto K, Tsujiuchi T. Lysophosphatidic acid receptor-2 (LPA 2)-mediated signaling enhances chemoresistance in melanoma cells treated with anticancer drugs. Mol Cell Biochem 2020; 469:89-95. [PMID: 32301060 DOI: 10.1007/s11010-020-03730-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2019] [Accepted: 04/07/2020] [Indexed: 10/24/2022]
Abstract
Lysophosphatidic acid (LPA) signaling through LPA receptors (LPA1 to LPA6) regulates a variety of malignant properties in cancer cells. Recently, we show that LPA2 expression is elevated by long-term cisplatin (CDDP) treatment in melanoma A375 cells. In the present study, we investigated whether LPA2-mediated signaling is involved in the modulation of chemoresistance in A375 cells. In cell survival assay, cells were treated with CDDP and dacarbazine (DTIC) every 24 h for 2 days. The cell survival rates to CDDP and DTIC were markedly increased by an LPA2 agonist, GRI-977143. To validate the effects of LPA2 on cell survival, LPA2 knockdown cells were generated from A375 cells. The cell survival rates elevated by GRI-977143 were suppressed by LPA2 knockdown. To evaluate the roles of LPA2-mediated signaling in cell survival, cells were pretreated with a Gi protein inhibitor, pertussis toxin (PTX). In the presence of GRI-977143, the cell survival rates to CDDP and DTIC were significantly lower in PTX-treated cells than in untreated cells. In addition, pretreatment of an adenylyl cyclase inhibitor, SQ22536, increased the cell survival of A375 cells treated with CDDP and DTIC. These results suggest that LPA2-mediated signaling plays an important role in the enhancement of chemoresistance of A375 cells treated with anticancer drugs.
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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
| | - 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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18
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Minami K, Ueda N, Ishimoto K, Tsujiuchi T. LPA5-mediated signaling induced by endothelial cells and anticancer drug regulates cellular functions of osteosarcoma cells. Exp Cell Res 2020; 388:111813. [DOI: 10.1016/j.yexcr.2020.111813] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Revised: 12/27/2019] [Accepted: 01/01/2020] [Indexed: 12/14/2022]
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Minami K, Ueda N, Ishimoto K, Tsujiuchi T. Regulation of cell survival through free fatty acid receptor 1 (FFA1) and FFA4 induced by endothelial cells in osteosarcoma cells. J Recept Signal Transduct Res 2020; 40:181-186. [PMID: 32026734 DOI: 10.1080/10799893.2020.1725047] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Free fatty acid receptor 1 (FFA1) and FFA4 belong to a family of free fatty acid (FFA) receptors. FFA1- and FFA4-mediated signaling regulates a variety of malignant properties in cancer cells. It is known that stromal cells in the tumor microenvironment promote tumor progression. In the present study, to assess the roles of FFA1 and FFA4 in cellular functions modulated by endothelial cells, highly migratory MG63-CR7(F2) cells were generated from osteosarcoma MG-63 cells, using endothelial F2 cell supernatants. Expression levels of FFAR1 and FFAR4 genes in MG63-CR7(F2) cells were significantly higher than those of MG-63 cells. In cell survival assay, cells were treated with cisplatin (CDDP) every 24 h for 2 days. The cell survival rate of MG-63 cells was significantly elevated by an FFA1 agonist TUG-770 as well as an FFA4 agonist TUG-891. Moreover, the cell survival rate of MG63-CR7(F2) cells was higher than that of MG-63 cells in the presence of TUG-770 or TUG-891, correlating with FFAR1 and FFAR4 expression levels. To validate the effects of FFA1 and FFA4 on cell survival to CDDP, FFA1 and FFA4 knockdown cell were generated from MG-63 cells. The cell survival rate of MG-63 cells was markedly inhibited by FFA1 or FFA4 knockdown. These results suggest that FFA1 and FFA4 may play an important role in the modulation of cellular functions by endothelial cells in osteosarcoma cells.
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Affiliation(s)
- Kanako Minami
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, Osaka, Japan
| | - Nanami Ueda
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, Osaka, Japan
| | - Kaichi Ishimoto
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, Osaka, Japan
| | - Toshifumi Tsujiuchi
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, Osaka, 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: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 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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Ishimoto K, Minami K, Otagaki S, Tsujiuchi T. Rapid establishment of highly migratory cells from cancer cells for investigating cellular functions. J Recept Signal Transduct Res 2019; 39:194-198. [PMID: 31478788 DOI: 10.1080/10799893.2019.1638399] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Cell migration is closely involved in cancer cell invasion into surrounding tissue and metastasis to the distant organs. It is crucial for understanding the molecular mechanisms that regulate cell migration in cancer cells. The aim of this study is to establish a rapid induction method of highly migratory cells from cancer cells. Osteosarcoma MG-63 and colon cancer DLD1 cells were seeded at 1 × 105 cells in 6-well plates. After 10 min, unattached cells were washed off three times with PBS. The cells which remained attached on the bottom of plates were cultured in DMEM containing 10% FBS. When the cells reached approximately 80% confluence, cells were harvested using trypsin/EDTA. The harvested cells were seeded in other 6-well plates and incubated for 10 min. The unattached cells were washed off and attached cells were further cultured. By repeating this procedure 11-12 times for 2 months, highly migratory MG63-A12 and DLD-A11 cells were obtained from MG-63 and DLD1 cells, respectively. In cell motility assay, the cell motile activities of MG63-A12 and DLD-A11 cells was 10.3 and 13.7 times higher than those of the parental cells, respectively. This procedure is useful to generate highly migratory cells for investigating cellular functions during tumor progression in cancer cells.
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Affiliation(s)
- Kaichi Ishimoto
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University , Osaka , Japan
| | - Kanako Minami
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University , Osaka , Japan
| | - Shiho Otagaki
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University , Osaka , Japan
| | - Toshifumi Tsujiuchi
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University , Osaka , Japan
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Minami K, Ueda N, Maeda H, Ishimoto K, Otagaki S, Tsujiuchi T. Modulation of chemoresistance by lysophosphatidic acid (LPA) signaling through LPA 5 in melanoma cells treated with anticancer drugs. Biochem Biophys Res Commun 2019; 517:359-363. [PMID: 31362892 DOI: 10.1016/j.bbrc.2019.07.092] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Accepted: 07/24/2019] [Indexed: 10/26/2022]
Abstract
Lysophosphatidic acid (LPA) signaling via LPA receptors (LPA1 to LPA6) contributes to the promotion of malignant potency in cancer cells. The cell motile activity are stimulated through the induction of LPA5 in melanoma cells treated with anticancer drugs. The present study aimed to investigate whether LPA signaling via LPA5 regulates chemoresistance in melanoma A375 cells. Cells were treated with cisplatin (CDDP) or dacarbazine (DTIC) every 24 h for 2 days. CDDP and DTIC treatment increased LPAR5 expressions. The cell survival rates of A375 cells treated with CDDP and DTIC were significantly decreased by LPA. In addition, LPAR5 expression was markedly elevated in long-term CDDP treated (A375-CDDP) cells. LPA decreased the cell survival rate of A375-CDDP cells treated with CDDP. To evaluate the roles of LPA5 in chemoresistance during tumor progression, highly migratory (A375-R11) cells were established from A375 cells. LPAR5 expression level was significantly lower in A375-R11 cells than in A375 cells. The cell survival rates of A375-R11 cells treated with CDDP and DTIC were increased, compared with A375 cells. Moreover, we generated LPA5 knockdown cells from A375 cells. The cell survival rates of A375 cells treated with CDDP and DTIC were significantly elevated by LPA5 knockdown. These results suggest that LPA signaling via LPA5 is involved in the modulation of chemoresistance in melanoma A375 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
| | - Haruka Maeda
- 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
| | - Shiho Otagaki
- 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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Fukushima K, Otagaki S, Takahashi K, Minami K, Ishimoto K, Fukushima N, Honoki K, Tsujiuchi T. Promotion of cell-invasive activity through the induction of LPA receptor-1 in pancreatic cancer cells. J Recept Signal Transduct Res 2018; 38:367-371. [DOI: 10.1080/10799893.2018.1531889] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Kaori Fukushima
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, Higashiosaka, Osaka, Japan
| | - Shiho Otagaki
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, Higashiosaka, Osaka, Japan
| | - Kaede Takahashi
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, Higashiosaka, Osaka, Japan
| | - Kanako Minami
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, Higashiosaka, Osaka, Japan
| | - Kaichi Ishimoto
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, Higashiosaka, Osaka, Japan
| | - Nobuyuki Fukushima
- Division of Molecular Neurobiology, Department of Life Science, Faculty of Science and Engineering, Kindai University, Higashiosaka, Osaka, Japan
| | - Kanya Honoki
- Department of Orthopedic Surgery, Nara Medical University, Kashihara, Nara, Japan
| | - Toshifumi Tsujiuchi
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, Higashiosaka, Osaka, Japan
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Tsuchiya Y, Tsujiuchi T, Iwagaki T, Mochida R, Ishikawa N, Katsuragawa T, Masuda K, Taga T, Kojima T, Ogihara A, Negayama K, Kumano H. Difficulties in Life: Four Years after the Great East Japan Earthquake. Eur J Public Health 2018. [DOI: 10.1093/eurpub/cky218.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Y Tsuchiya
- Waseda University, Tokorozawa-shi, Japan
| | | | - T Iwagaki
- Waseda University, Tokorozawa-shi, Japan
| | - R Mochida
- Waseda University, Tokorozawa-shi, Japan
| | - N Ishikawa
- Waseda University, Tokorozawa-shi, Japan
| | | | - K Masuda
- Waseda University, Tokorozawa-shi, Japan
| | - T Taga
- Waseda University, Tokorozawa-shi, Japan
| | - T Kojima
- Waseda University, Tokorozawa-shi, Japan
| | - A Ogihara
- Waseda University, Tokorozawa-shi, Japan
| | - K Negayama
- Waseda University, Tokorozawa-shi, Japan
| | - H Kumano
- Waseda University, Tokorozawa-shi, Japan
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Fukushima K, Takahashi K, Kusaka M, Ishimoto K, Minami K, Otagaki S, Fukushima N, Honoki K, Tsujiuchi T. Induction of GPR40 positively regulates cell motile and growth activities in breast cancer MCF-7 cells. J Recept Signal Transduct Res 2018; 38:311-315. [DOI: 10.1080/10799893.2018.1494742] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Kaori Fukushima
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, Higashiosaka, Osaka, Japan
| | - Kaede Takahashi
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, Higashiosaka, Osaka, Japan
| | - Mirai Kusaka
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, Higashiosaka, Osaka, Japan
| | - Kaichi Ishimoto
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, Higashiosaka, Osaka, Japan
| | - Kanako Minami
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, Higashiosaka, Osaka, Japan
| | - Shiho Otagaki
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, Higashiosaka, Osaka, Japan
| | - Nobuyuki Fukushima
- Division of Molecular Neurobiology, Department of Life Science, Faculty of Science and Engineering, Kindai University, Higashiosaka, Osaka, Japan
| | - Kanya Honoki
- Department of Orthopedic Surgery, Nara Medical University, Kashihara, Nara, Japan
| | - Toshifumi Tsujiuchi
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, Higashiosaka, Osaka, Japan
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Takahashi K, Fukushima K, Tanaka K, Minami K, Ishimoto K, Otagaki S, Fukushima N, Honoki K, Tsujiuchi T. Involvement of LPA signaling via LPA receptor-2 in the promotion of malignant properties in osteosarcoma cells. Exp Cell Res 2018; 369:316-324. [PMID: 29859140 DOI: 10.1016/j.yexcr.2018.05.037] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Revised: 05/28/2018] [Accepted: 05/29/2018] [Indexed: 01/01/2023]
Abstract
Lysophosphatidic acid (LPA) signaling via G protein-coupled LPA receptors mediates various biological effects in cancer cells. This study aimed to investigate the roles of LPA receptors in the regulation of cellular functions during tumor progression in osteosarcoma cells. Long-term cisplatin (CDDP)-treated MG63-C and MG63-R7-C cells were generated from osteosarcoma MG-63 and highly-migratory MG63-R7 cells, respectively. LPAR2 and LPAR3 expression levels were significantly higher in MG63-C cells than in MG-63 cells, while LPAR1 expression was reduced. MG63-C cells were highly motile, compared with MG-63 cells. MG63-C cell motility was suppressed by LPA2 knockdown and enhanced by the LPA1/LPA3 antagonist, dioctanoylglycerol pyrophosphate. LPAR2 and LPAR3 expression levels were significantly elevated in MG63-R7-C cells in comparison with MG63-R7 cells. MG63-R7-C cells were found to be highly invasive, correlating with metalloproteinase-2 activation. MG63-R7-C cells formed large colonies, whereas colony formation was absent from MG63-R7 cells. Notably, MG63-R7-C cell activities were inhibited by LPA2 knockdown. These results suggest that LPA signaling via LPA2 plays an important role in the acquisition of malignant properties during tumor progression in MG-63 cells.
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Affiliation(s)
- Kaede Takahashi
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Kaori Fukushima
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Kosuke Tanaka
- 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
| | - Shiho Otagaki
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Nobuyuki Fukushima
- Division of Molecular Neurobiology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Kanya Honoki
- Department of Orthopedic Surgery, Nara Medical University, 840 Shijo-cho, Kashihara, Nara 634-8521, 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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Takahashi K, Fukushima K, Otagaki S, Ishimoto K, Minami K, Fukushima N, Honoki K, Tsujiuchi T. Effects of LPA1 and LPA6 on the regulation of colony formation activity in colon cancer cells treated with anticancer drugs. J Recept Signal Transduct Res 2018; 38:71-75. [DOI: 10.1080/10799893.2018.1426608] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Kaede Takahashi
- Division of Molecular Oncology, Kindai University, Higashiosaka, Osaka, Japan
| | - Kaori Fukushima
- Division of Molecular Oncology, Kindai University, Higashiosaka, Osaka, Japan
| | - Shiho Otagaki
- Division of Molecular Oncology, Kindai University, Higashiosaka, Osaka, Japan
| | - Kaichi Ishimoto
- Division of Molecular Oncology, Kindai University, Higashiosaka, Osaka, Japan
| | - Kanako Minami
- Division of Molecular Oncology, Kindai University, Higashiosaka, Osaka, Japan
| | - Nobuyuki Fukushima
- Division of Molecular Neurobiology, Department of Life Science, Faculty of Science and Engineering, Kindai University, Higashiosaka, Osaka, Japan
| | - Kanya Honoki
- Department of Orthopedic Surgery, Nara Medical University, Kashihara, Nara, Japan
| | - Toshifumi Tsujiuchi
- Division of Molecular Oncology, Kindai University, Higashiosaka, Osaka, Japan
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Kishi S, Honoki K, Tsukamoto S, Fujii H, Kondo Y, Kido A, Tsujiuchi T, Kuniyasu H, Tanaka Y. Abstract A23: Pterostilbene (3',5'-dimethoxyresveratrol) inhibits cell growth and augments the efficacy of doxorubicin through stem cell phenotype suppression in osteosarcoma cells in vitro. Clin Cancer Res 2018. [DOI: 10.1158/1557-3265.sarcomas17-a23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Objective: Osteosarcoma (OS) is the most common primary malignant neoplasm of bone and mainly affects adolescents and young adults. Intensive multiagent chemotherapy and definitive surgery have dramatically improved its prognosis as well as functional outcome of affected limbs since the 1980s. However, survival rate of patients has remained around 70% for more than 30 years, and the prognosis remains especially poor in patients with metastatic disease or unresectable lesions. Thus, additional or alternative treatment strategy has long been desired for patients with such poor prognosis.
Pterostilbene (PTE), a methyl ether of resveratrol derived from plants like grapes and blueberries, has recently attracted attention as a growing number of reports describe promising pharmacologic properties of antioxidative and antiaging effects and have shown its inhibitory effects against cancers including colon, oral cancer, and malignant lymphoma. However, there are very scarce reports about the effects of PTE against OS. Here, we show a very characteristic efficacy of PTE on human OS cells and propose its potential as a novel therapeutic intervention against OS.
Materials and Methods: Effects of PTE on cellular growth were evaluated in human OS cell lines SaOS2, U2OS, and MG63 treated at concentrations ranging from 2 μM to10 μM (2, 5, 10 μM) for 48 hrs compared to nontreated cells by MTS assay. Additionally, we evaluated the effects of cotreatment of PTE with low-dose (0.2 μg/ml) of doxorubicin (DXR) against SaOS2 and U2OS. To investigate the efficacy of PTE on stemness, ability of spheroid formation in anchorage-independent 3D culture condition was evaluated in SaOS2 and U2OS cells treated by 10 μM PTE for 48 hrs and mRNA expression of stemness markers of Oct3 and CD44 was evaluated by RT-PCR at the same condition.
Results: Treatment of PTE showed dose-dependent growth inhibitory effects on all cell lines and was especially significant on MG63 cells at the highest inhibition rate of 65% at the concentration of 10 μM for 48 hrs treatment. In contrast, PTE did not show growth inhibition on normal mesenchymal stromal cells, one of the candidates for OS cell of origin. Cotreatment of PTE with DXR indicated that PTE augmented the growth suppressive effects of DXR lifting the growth inhibition rate up to 515% from DXR alone against SaOS2 and U2OS (62-67% and 25-40%, respectively). PTE treatments decreased sphere-forming ability in both SaOS2 and U2OS cells in terms of sphere numbers and sphere sizes, and also decreased mRNA expression of stemness markers of Oct3 and CD44 in both cell lines.
Discussion: Current results suggest that PTE not only inhibits cellular growth of OS but also suppresses stem cell phenotype which was defined by sphere-forming ability and mRNA expression of stemness markers. Mechanisms of stem cell phenotype suppression by PTE are still unknown, but it might be caused by either decrease or differentiation of stem cell subpopulation. Suppression of stem cell phenotype could lead to enhancing the efficacy of cytotoxic chemotherapeutic agents such as DXR. Previous reports suggested that antitumor activity of PTE against OS cells targeted the JAK2/STAT3 signaling pathways. The efficacy of PTE is cell-type dependent, possibly due to the mechanisms of cell death or cell metabolism. The molecular pathways involved in growth inhibition and stem cell phenotype suppression caused by PTE are under investigation using pathway inhibitors and metabolism modulators.
Conclusion: PTE inhibits cellular growth and augments the efficacy of DXR against OS cells possibly through the suppression of stem cell characteristics represented by sphere-forming ability and mRNA expression of stemness markers. The current study suggests that PTE could be a possible candidate for a novel therapeutic intervention against OS.
Citation Format: Shingo Kishi, Kanya Honoki, Shinji Tsukamoto, Hiromasa Fujii, Yumiko Kondo, Akira Kido, Toshifumi Tsujiuchi, Hiroki Kuniyasu, Yasuhito Tanaka. Pterostilbene (3',5'-dimethoxyresveratrol) inhibits cell growth and augments the efficacy of doxorubicin through stem cell phenotype suppression in osteosarcoma cells in vitro [abstract]. In: Proceedings of the AACR Conference on Advances in Sarcomas: From Basic Science to Clinical Translation; May 16-19, 2017; Philadelphia, PA. Philadelphia (PA): AACR; Clin Cancer Res 2018;24(2_Suppl):Abstract nr A23.
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Affiliation(s)
| | | | | | | | | | - Akira Kido
- 1Nara Medical University, Kashihara, Japan,
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Fukushima K, Takahashi K, Kurokawa A, Ishimoto K, Otagaki S, Minami K, Fukushima N, Honoki K, Tsujiuchi T. Involvement of LPA receptor-5 in the enhancement of cell motile activity by phorbol ester and anticancer drug treatments in melanoma A375 cells. Biochem Biophys Res Commun 2018; 496:225-230. [DOI: 10.1016/j.bbrc.2018.01.030] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2017] [Accepted: 01/04/2018] [Indexed: 12/19/2022]
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Tanaka A, Yamamoto A, Murota K, Tsujiuchi T, Iwamori M, Fukushima N. Polyunsaturated fatty acids induce ovarian cancer cell death through ROS-dependent MAP kinase activation. Biochem Biophys Res Commun 2017; 493:468-473. [DOI: 10.1016/j.bbrc.2017.08.168] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Accepted: 08/31/2017] [Indexed: 01/10/2023]
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Honoki K, Shinomiya T, Fujii H, Ishihara T, Tsukamoto S, Kishi S, Kondo Y, Kido A, Tsujiuchi T, Shima M, Tanaka Y. Abstract 698: Functional outcome and socio-psychological problems for bone & soft tissue sarcoma patients in childhood & AYA generation. Cancer Res 2017. [DOI: 10.1158/1538-7445.am2017-698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
[Objective] To elucidate the problems between functional and sociological outcomes in patients of bone and soft tissue sarcomas in childhood and adolescent/young adult (AYA) generation.
[Method] Clinical (prognostic and functional) and socio-psychological outcomes were retrospectively analyzed in 50 patients with bone and soft tissue sarcomas under 29 years old treated in our institute from 1998 to 2014.
[Results] Twenty-two patients under 15 and 28 of AYA generation (15 to 29 years old) (28 male and 22 female) were subjected, including 35 cases of bone and 15 cases of soft tissue sarcomas, and 39 of extremity cases. Most common diagnosis was osteosarcoma of 27 cases. Limb-sparing surgery was performed in 30 cases, including 14 of prosthetic and 8 of biological reconstruction for bone tumors. Overall Survival rates were 79% for 2 year and 61% for 5 year follow-up periods. 70% of the patients experienced limited activities; 50% in high school and college students experienced drop-out or delay, suspension and repeating the same class; 56% faced to their job lost or limitation of job search; 20% experienced changes of relationship with families and partners (Table). Most taken palliative care intervention was the counseling for family members and caregivers, besides pain management and psychological care. Correlation coefficient failed to show a significant correlation between functional score and sociological disability score both in all limb sparing cases (R2 = 0.2664) and in osteosarcoma cases ((R2 = 0.1757) .
[Conclusion] The sociological problems for patients in this particular group could be focused on school life, job search and relationship with families and partners. QOL is a multidimensional measure with various domains, such as physical, psychological, social well-being, spiritual health as well as functional ability, therefore, multi-disciplinary care for socio-physiological and psychological disadvantage must be taken for this group of patients at earliest convenience.
Reletionship between physiological and socio-psychological problemsSubjectAll patientsLimb-spared patinetsLimitation of activities70% (30/43)75% (21/28)School dropout/delay in high-schoolers & college students50% (14/28)32% (8/25)Lost jobs/job search difficulties56% (9/16)33% (3/9)Changing social reletions with families & partners20% (8/40)21% (3/28)
Citation Format: Kanya Honoki, Toshiaki Shinomiya, Hiromasa Fujii, Takashi Ishihara, Shinji Tsukamoto, Shingo Kishi, Yumiko Kondo, Akira Kido, Toshifumi Tsujiuchi, Midori Shima, Yasuhito Tanaka. Functional outcome and socio-psychological problems for bone & soft tissue sarcoma patients in childhood & AYA generation [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2017; 2017 Apr 1-5; Washington, DC. Philadelphia (PA): AACR; Cancer Res 2017;77(13 Suppl):Abstract nr 698. doi:10.1158/1538-7445.AM2017-698
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Ishii S, Tsujiuchi T, Fukushima N. Functional characterization of lysophosphatidic acid receptor 1 mutants identified in rat cancer tissues. Biochem Biophys Res Commun 2017; 486:767-773. [PMID: 28342860 DOI: 10.1016/j.bbrc.2017.03.118] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Accepted: 03/22/2017] [Indexed: 02/04/2023]
Abstract
Lysophosphatidic acid (LPA), an extracellular lipid mediator, exerts various cellular effects through activation of LPA receptors, LPA1-LPA6, in many types of cells including cancer cells. We recently found several missense mutations of Lpar1 in rat cancer tissues. One of these mutations is located at the extracellular tip of the seventh transmembrane domain of LPA1, and another three mutations are found within the NPXXY motif in the seventh transmembrane domain. These mutants are designated F295S LPA1 and P308S, I310T, and Y311H LPA1, respectively. Here, we examined the functions of these LPA1 mutants. Compared with wild-type (WT) LPA1, F295S, P308S, and I310T LPA1 showed decreased maximal responses in inhibition of cAMP formation, Ca2+ mobilization, and cytoskeletal changes. Y311H LPA1 failed to show LPA-induced cellular responses. However, these LPA1 mutants were internalized in response to LPA exposure. Finally, while WT and F295S LPA1 showed a similar, broad distribution throughout the cell, P308S, I310T, and Y311H LPA1 displayed a restricted cellular distribution and co-localized with the endoplasmic reticulum. These data suggest that the LPA1 mutants perturb LPA signaling in cancer tissues.
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Affiliation(s)
- Shoichi Ishii
- Division of Molecular Neurobiology, Department of Life Science, School of Science and Engineering, Kindai University, Higashiosaka, Japan
| | - Toshifumi Tsujiuchi
- Division of Molecular Oncology, Department of Life Science, School of Science and Engineering, Kindai University, Higashiosaka, Japan
| | - Nobuyuki Fukushima
- Division of Molecular Neurobiology, Department of Life Science, School of Science and Engineering, Kindai University, Higashiosaka, Japan.
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Takahashi K, Fukushima K, Fukushima N, Honoki K, Tsujiuchi T. Enhanced cellular functions through induction of LPA 2 by cisplatin in fibrosarcoma HT1080 cells. Mol Cell Biochem 2017; 431:29-35. [PMID: 28205098 DOI: 10.1007/s11010-017-2971-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Accepted: 02/02/2017] [Indexed: 10/20/2022]
Abstract
Lysophosphatidic acid (LPA) is a simple biophysical lipid which interacts with at least six subtypes of G protein-coupled LPA receptors (LPA1-LPA6). In cancer cells, LPA signaling via LPA receptors is involved in the regulation of malignant properties, such as cell growth, motility, and invasion. The aim of this study was to assess whether LPA receptors regulate cellular functions of fibrosarcoma cells treated with anticancer drug. HT1080 cells were maintained by the stepwise treatment of cisplatin (CDDP) at a range of 0.01 to 1.0 µM for approximately 6 months. The cell motile and invasive activities of long-term CDDP-treated (HT-CDDP) cells were significantly stimulated by LPA treatment, while HT-CDDP cells in the static state showed the low cell motile and invasive activities in comparison with HT1080 cells. Since the expression level of LPAR2 gene was markedly elevated in HT-CDDP cells, LPA2 knockdown cells were generated from HT-CDDP cells. The cell motile and invasive activities of HT-CDDP cells were reduced by LPA2 knockdown. In colony assay, large-sized colonies formed by long-term CDDP treatment were suppressed by LPA2 knockdown. In addition, LPA2 knockdown cells reduced LPA production by autotaxin (ATX), correlating with ATX expression level. These results suggest that LPA signaling via LPA2 may play an important role in the regulation of cellular functions in HT1080 cells treated with CDDP.
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Affiliation(s)
- Kaede Takahashi
- Division of Cancer Biology and Bioinformatics, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiōsaka, Osaka, 577-8502, Japan
| | - Kaori Fukushima
- Division of Cancer Biology and Bioinformatics, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiōsaka, Osaka, 577-8502, Japan
| | - Nobuyuki Fukushima
- Division of Molecular Neurobiology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiōsaka, Osaka, 577-8502, Japan
| | - Kanya Honoki
- Department of Orthopedic Surgery, Nara Medical University, 840 Shijo-cho, Kashihara, Nara, 634-8521, Japan
| | - Toshifumi Tsujiuchi
- Division of Cancer Biology and Bioinformatics, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiōsaka, Osaka, 577-8502, Japan.
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Fukushima K, Takahashi K, Yamasaki E, Onishi Y, Fukushima N, Honoki K, Tsujiuchi T. Lysophosphatidic acid signaling via LPA 1 and LPA 3 regulates cellular functions during tumor progression in pancreatic cancer cells. Exp Cell Res 2017; 352:139-145. [PMID: 28189636 DOI: 10.1016/j.yexcr.2017.02.007] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2016] [Revised: 02/06/2017] [Accepted: 02/07/2017] [Indexed: 12/22/2022]
Abstract
Lysophosphatidic acid (LPA) signaling via G protein-coupled LPA receptors exhibits a variety of biological effects, such as cell proliferation, motility and differentiation. The aim of this study was to evaluate the roles of LPA1 and LPA3 in cellular functions during tumor progression in pancreatic cancer cells. LPA1 and LPA3 knockdown cells were generated from PANC-1 cells. The cell motile and invasive activities of PANC-1 cells were inhibited by LPA1 and LPA3 knockdown. In gelatin zymography, LPA1 and LPA3 knockdown cells indicated the low activation of matrix metalloproteinase-2 (MMP-2) in the presence of LPA. Next, to assess whether LPA1 and LPA3 regulate cellular functions induced by anticancer drug, PANC-1 cells were treated with cisplatin (CDDP) for approximately 6 months. The cell motile and invasive activities of long-term CDDP treated cells were markedly higher than those of PANC-1 cells, correlating with the expression levels of LPAR1 and LPAR3 genes. In soft agar assay, the long-term CDDP treated cells formed markedly large sized colonies. In addition, the cell motile and invasive activities enhanced by CDDP were significantly suppressed by LPA1 and LPA3 knockdown as well as colony formation. These results suggest that LPA signaling via LPA1 and LPA3 play an important role in the regulation of cellular functions during tumor progression in PANC-1 cells.
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Affiliation(s)
- Kaori Fukushima
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Kaede Takahashi
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Eri Yamasaki
- 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 Onishi
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Nobuyuki Fukushima
- Division of Molecular Neurobiology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Kanya Honoki
- Department of Orthopedic Surgery, Nara Medical University, 840 Shijo-cho, Kashihara, Nara 634-8521, 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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Takahashi K, Fukushima K, Onishi Y, Node Y, Inui K, Fukushima N, Honoki K, Tsujiuchi T. Different effects of G-protein-coupled receptor 120 (GPR120) and GPR40 on cell motile activity of highly migratory osteosarcoma cells. Biochem Biophys Res Commun 2017; 484:675-680. [PMID: 28159555 DOI: 10.1016/j.bbrc.2017.01.175] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2017] [Accepted: 01/30/2017] [Indexed: 01/06/2023]
Abstract
G-protein-coupled receptor 120 (GPR120) and GPR40 are members of free fatty acid (FFA) receptors and mediate a variety of biological responses through binding of medium- and long-chain FFAs. Recently, it has been reported that GPR120 and GPR40 regulated cellular functions of cancer cells. In the present study, to assess whether GPR120 and GPR40 are involved in the enhancement of cell motile activity of osteosarcoma cells, we established highly migratory (MG63-R7) cells from osteosarcoma MG-63 cells. The expression level of GPR120 gene was significantly higher in MG63-R7 cells than in MG-63 cells, while no change of GPR40 expression was observed. In cell motility assay, the cell motile activity of MG63-R7 cells was approximately 200 times higher than that of MG-63 cells. The cell motile activity of MG63-R7 cells was stimulated by GW9508, which is an agonist of GPR120 and GPR40. Moreover, a GPR40 antagonist GW1100 elevated the cell motile activity of MG63-R7 cells in the presence of GW9508. To confirm the effects of GPR120 and GPR40 on the cell motile activity of MG63-R7 cells, GPR120 knockdown cells were generated from MG63-R7 cells. The cell motile activity of MG63-R7 cells was markedly suppressed by GPR120 knockdown. These results indicated that GPR120 enhanced and GPR40 inhibited the cell motile activity of highly migratory osteosarcoma cells.
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Affiliation(s)
- Kaede Takahashi
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Kaori Fukushima
- 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 Onishi
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Yusuke Node
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Karin Inui
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Nobuyuki Fukushima
- Division of Molecular Neurobiology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Kanya Honoki
- Department of Orthopedic Surgery, Nara Medical University, 840 Shijo-cho, Kashihara, Nara 634-8521, 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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Takahashi K, Fukushima K, Onishi Y, Inui K, Node Y, Fukushima N, Honoki K, Tsujiuchi T. Lysophosphatidic acid (LPA) signaling via LPA 4 and LPA 6 negatively regulates cell motile activities of colon cancer cells. Biochem Biophys Res Commun 2016; 483:652-657. [PMID: 27993681 DOI: 10.1016/j.bbrc.2016.12.088] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Accepted: 12/13/2016] [Indexed: 12/14/2022]
Abstract
Lysophosphatidic acid (LPA) is an extracellular biological lipid and interacts with six subtypes of G protein-coupled LPA receptors (LPA1 to LPA6). LPA receptors exhibit a variety of cellular functions, depending on types of cancer cells. In this study, to assess the roles of LPA4 and LPA6 in cell growth and motile activities of colon cancer cells, LPA4 and LPA6 knockdown cells were established from DLD1 and HCT116 cells. LPA treatment increased the cell growth activities of LPA4 and LPA6 knockdown cells, compared with control cells. The cell motile activities of LPA4 and LPA6 knockdown cells were significantly higher than those of control cells. To evaluate the effects of LPA4 and LPA6 on cell motile activity induced by anticancer drug, long-term fluorouracil (5-FU) treated (DLD-5FU) cells were generated. The expression levels of LPAR1, LPAR4 and LPAR6 genes were significantly increased in DLD-5FU cells. DLD-5FU cells showed the high cell motile activity, compared with DLD1 cells. The increased cell motile activity was markedly stimulated by LPA4 and LPA6 knockdown. In contrast, the cell motile activity enhanced by 5-FU treatment was suppressed by LPA1 knockdown. These results suggest that LPA signaling via LPA4 and LPA6 negatively regulates the cell motile activities of DLD1 and HCT116 cells as well as long-term 5-FU treated cells.
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Affiliation(s)
- Kaede Takahashi
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Kaori Fukushima
- 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 Onishi
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Karin Inui
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Yusuke Node
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Nobuyuki Fukushima
- Division of Molecular Neurobiology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Kanya Honoki
- Department of Orthopedic Surgery, Nara Medical University, 840 Shijo-cho, Kashihara, Nara 634-8521, 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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Fukushima K, Takahashi K, Fukushima N, Honoki K, Tsujiuchi T. Different effects of GPR120 and GPR40 on cellular functions stimulated by 12-O-tetradecanoylphorbol-13-acetate in melanoma cells. Biochem Biophys Res Commun 2016; 475:25-30. [PMID: 27163640 DOI: 10.1016/j.bbrc.2016.05.023] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2016] [Accepted: 05/03/2016] [Indexed: 01/28/2023]
Abstract
G-protein-coupled receptor 120 (GPR120) and GPR40 exhibit a variety of biological responses by the binding of free fatty acids. 12-O-Tetradecanoylphorbol-13-acetate (TPA) is a tumor promoting agent of skin carcinogenesis. It is known that TPA treatment stimulates cell motile activity of cancer cells, including melanoma cells. In the present study, we investigated whether GRP120 and GPR40 are involved in regulation of cell motile activity induced by TPA in two melanoma cell lines. A375 and G361 cells were treated with TPA at a concentration of 10 nM for 24 h. The cell motile activity of A375 cells was significantly increased by TPA, correlating with GPR40 expression. In contrast, TPA suppressed the cell motile activity of G361 cells, while GPR120 and GPR40 expressions were increased. The cell motile activity of A375 cells treated with TPA was markedly increased by GPR120 knockdown. In addition, to assess roles of GPR120 and GPR40 in cellular functions of A375 cells by the long-term TPA treatment, cells were treated with TPA (1 nM) for at least 3 months. The long-term TPA treatment induced the high cell motile activity and elevated GPR120 and GPR40 expressions. The high cell motile activity of A375 cells stimulated by the long-term TPA treatment was enhanced by GPR120 knockdown. These results suggest that GPR120 negatively and GPR40 positively regulate cell motile activities induce by TPA in melanoma cells.
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Affiliation(s)
- Kaori Fukushima
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Kaede Takahashi
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Nobuyuki Fukushima
- Division of Molecular Neurobiology, Department of Life Science, Faculty of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Kanya Honoki
- Department of Orthopedic Surgery, Nara Medical University, 840 Shijo-cho, Kashihara, Nara 634-8521, 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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Tsuchiya Y, Shida N, Izumi S, Ogasawara M, Kakinuma W, Tsujiuchi T, Machida K. Factors associated with mothers not vaccinating their children against mumps in Japan. Public Health 2016; 137:95-105. [PMID: 27062068 DOI: 10.1016/j.puhe.2016.03.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2014] [Revised: 11/05/2015] [Accepted: 03/02/2016] [Indexed: 10/22/2022]
Abstract
OBJECTIVES In Japan, mumps immunization is not mandatory, and the prevalence of mumps immunization among eligible children is only about 30%, raising concerns about increased risk of meningitis, encephalitis and deafness caused by mumps. In 2011, to understand why families are not voluntarily immunizing their children against mumps, we surveyed mothers who were university graduates to examine the factors and barriers influencing mumps vaccination in Japan. STUDY DESIGN A cross sectional design. METHODS We sent questionnaires including questions on demographic data and vaccination status, barriers and factors for immunizations to university alumnae to recruit participants. Data were analysed by Student's t-test for continuous variables and by univariate and multivariate analysis to obtain the odds ratio and adjusted odds ratio. RESULTS Two hundred and twenty-six mothers with children responded with an average (range) age of 44.7 years (SD = 5.02; 30-55 years). Adjusted odds ratios (aOR) from logistic regression analysis identified fear of harmful side-effects (aOR, 2.55; 95% CI, 1.10 to 5.89), the vaccination not being mandatory (aOR, 3.30; 95% CI, 1.41 to 7.72), perceived non-efficacy (aOR, 6.21; 95% CI, 1.85 to 20.91) and being busy (aOR, 3.30; 95% CI, 1.21 to 9.01) were significantly and inversely associated with mumps vaccination. Recommendations from family doctors (aOR, 0.35; 95% CI, 0.17 to 0.71), living abroad when their children would be vaccinated (aOR, 0.10; 95% CI, 0.02 to 0.68) and the maternal age (aOR, 0.91; 95% CI, 0.85 to 0.96) were significant and positively associated with vaccination. CONCLUSIONS In the absence of mandatory vaccinations, a public education campaign about mumps, their potential consequences and the nature and value of vaccination could improve the prevalence of mumps vaccination among children and prevent the consequences of this disease.
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Affiliation(s)
- Y Tsuchiya
- Advanced Research Center for Human Science, Waseda University, 2-579-15, Mikajima, Tokorozawa, Saitama, Japan.
| | - N Shida
- Advanced Research Center for Human Science, Waseda University, 2-579-15, Mikajima, Tokorozawa, Saitama, Japan
| | - S Izumi
- Faculty of Home Economics, Koriyama Women's University, 3-25-2, Kaisei, Koriyama, Fukushima, Japan
| | - M Ogasawara
- Department of Human Science, Waseda University, 2-579-15, Mikajima, Tokorozawa, Saitama, Japan
| | - W Kakinuma
- Advanced Research Center for Human Science, Waseda University, 2-579-15, Mikajima, Tokorozawa, Saitama, Japan
| | - T Tsujiuchi
- Faculty of Human Science, Waseda University, 2-579-15, Mikajima, Tokorozawa, Saitama, Japan
| | - K Machida
- Faculty of Human Science, Waseda University, 2-579-15, Mikajima, Tokorozawa, Saitama, Japan
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Kita T, Kadochi Y, Takahashi K, Fukushima K, Yamasaki E, Uemoto T, Hirane M, Fukushima N, Honoki K, Tsujiuchi T. Diverse effects of G-protein-coupled free fatty acid receptors on the regulation of cellular functions in lung cancer cells. Exp Cell Res 2016; 342:193-9. [PMID: 26968637 DOI: 10.1016/j.yexcr.2016.03.008] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Revised: 03/07/2016] [Accepted: 03/07/2016] [Indexed: 01/15/2023]
Abstract
Free fatty acids (FFAs) are dietary nutrients which mediate a variety of biological effects through binding to G-protein-coupled FFA receptors (FFARs). G-protein-coupled receptor 120 (GPR120) and GPR40 are identified as FFARs for long- and medium-chain fatty acids. Here we investigated whether GPR120 and GPR40 are involved in the acquisition of malignant properties in lung cancer cells. Three lung cancer RLCNR, LL/2 and A549 cells used in this study expressed GPR120 and GPR40 genes. The cell motile activities of all cells were significantly suppressed by a GPR40 antagonist GW1100. In addition, GPR40 knockdown inhibited the cell motile activity of A549 cells. In gelatin zymography, matrix metalloproteinase-2 (MMP-2) activity in GPR40 knockdown was significantly lower than that in control cells. Next, to evaluate effects of GPR120 and GPR40 on cellular functions induced by anti-cancer drug, the long-term cisplatin (CDDP) treated (A549-CDDP) cells were generated. The expression levels of GPR120 and GPR40 were significantly decreased in A549-CDDP cells. While A549-CDDP cells showed the high cell motile activity, GW1100 suppressed the cell motile activity of A549-CDDP cells. These results demonstrate that GPR120 negatively and GPR40 positively regulate cellular functions during tumor progression in lung cancer cells.
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Affiliation(s)
- Tsubasa Kita
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kinki University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Yui Kadochi
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kinki University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Kaede Takahashi
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kinki University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Kaori Fukushima
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kinki University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Eri Yamasaki
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kinki University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Taiki Uemoto
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kinki University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Miku Hirane
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kinki University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Nobuyuki Fukushima
- Division of Molecular Neurobiology, Department of Life Science, Faculty of Science and Engineering, Kinki University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Kanya Honoki
- Department of Orthopedic Surgery, Nara Medical University, 840 Shijo-cho, Kashihara, Nara 634-8521, Japan
| | - Toshifumi Tsujiuchi
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kinki University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan.
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Hirane M, Ishii S, Tomimatsu A, Fukushima K, Takahashi K, Fukushima N, Honoki K, Tsujiuchi T. Different induction of LPA receptors by chemical liver carcinogens regulates cellular functions of liver epithelial WB-F344 cells. Mol Carcinog 2015; 55:1573-1583. [DOI: 10.1002/mc.22410] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2015] [Revised: 08/17/2015] [Accepted: 08/31/2015] [Indexed: 01/22/2023]
Affiliation(s)
- Miku Hirane
- Division of Molecular Oncology; Department of Life Science; Faculty of Science and Engineering, Kinki University; Kowakae, Higashiosaka Osaka Japan
| | - Shuhei Ishii
- Division of Molecular Oncology; Department of Life Science; Faculty of Science and Engineering, Kinki University; Kowakae, Higashiosaka Osaka Japan
| | - Ayaka Tomimatsu
- Division of Molecular Oncology; Department of Life Science; Faculty of Science and Engineering, Kinki University; Kowakae, Higashiosaka Osaka Japan
| | - Kaori Fukushima
- Division of Molecular Oncology; Department of Life Science; Faculty of Science and Engineering, Kinki University; Kowakae, Higashiosaka Osaka Japan
| | - Kaede Takahashi
- Division of Molecular Oncology; Department of Life Science; Faculty of Science and Engineering, Kinki University; Kowakae, Higashiosaka Osaka Japan
| | - Nobuyuki Fukushima
- Division of Molecular Neurobiology; Department of Life Science; Faculty of Science and Engineering, Kinki University; Kowakae, Higashiosaka Osaka Japan
| | - Kanya Honoki
- Department of Orthopedic Surgery; Nara Medical University; Kashihara Nara Japan
| | - Toshifumi Tsujiuchi
- Division of Molecular Oncology; Department of Life Science; Faculty of Science and Engineering, Kinki University; Kowakae, Higashiosaka Osaka Japan
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Ishii S, Kitamura Y, Hirane M, Tomimatsu A, Fukushima K, Takahashi K, Fukushima N, Honoki K, Tsujiuchi T. Negative effects of G-protein-coupled free fatty acid receptor GPR40 on cell migration and invasion in fibrosarcoma HT1080 cells. Mol Carcinog 2015; 55:1553-1559. [DOI: 10.1002/mc.22408] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2015] [Revised: 08/10/2015] [Accepted: 08/19/2015] [Indexed: 01/28/2023]
Affiliation(s)
- Shuhei Ishii
- Division of Molecular Oncology; Department of Life Science; Faculty of Science and Engineering; Kinki University; 3-4-1 Kowakae Higashiosaka Osaka 577-8502 Japan
| | - Yuka Kitamura
- Division of Molecular Oncology; Department of Life Science; Faculty of Science and Engineering; Kinki University; 3-4-1 Kowakae Higashiosaka Osaka 577-8502 Japan
| | - Miku Hirane
- Division of Molecular Oncology; Department of Life Science; Faculty of Science and Engineering; Kinki University; 3-4-1 Kowakae Higashiosaka Osaka 577-8502 Japan
| | - Ayaka Tomimatsu
- Division of Molecular Oncology; Department of Life Science; Faculty of Science and Engineering; Kinki University; 3-4-1 Kowakae Higashiosaka Osaka 577-8502 Japan
| | - Kaori Fukushima
- Division of Molecular Oncology; Department of Life Science; Faculty of Science and Engineering; Kinki University; 3-4-1 Kowakae Higashiosaka Osaka 577-8502 Japan
| | - Kaede Takahashi
- Division of Molecular Oncology; Department of Life Science; Faculty of Science and Engineering; Kinki University; 3-4-1 Kowakae Higashiosaka Osaka 577-8502 Japan
| | - Nobuyuki Fukushima
- Division of Molecular Neurobiology; Department of Life Science; Faculty of Science and Engineering; Kinki University; 3-4-1 Kowakae Higashiosaka Osaka 577-8502 Japan
| | - Kanya Honoki
- Department of Orthopedic Surgery; Nara Medical University; 840 Shijo-cho Kashihara Nara 634-8521 Japan
| | - Toshifumi Tsujiuchi
- Division of Molecular Oncology; Department of Life Science; Faculty of Science and Engineering; Kinki University; 3-4-1 Kowakae Higashiosaka Osaka 577-8502 Japan
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Fukushima K, Yamasaki E, Ishii S, Tomimatsu A, Takahashi K, Hirane M, Fukushima N, Honoki K, Tsujiuchi T. Different roles of GPR120 and GPR40 in the acquisition of malignant properties in pancreatic cancer cells. Biochem Biophys Res Commun 2015; 465:512-5. [PMID: 26282200 DOI: 10.1016/j.bbrc.2015.08.050] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2015] [Accepted: 08/12/2015] [Indexed: 11/24/2022]
Abstract
Free fatty acids (FFAs) act as extracellular signaling molecules through binding to G-protein-coupled FFA receptors (FFARs). GPR120 and GPR40 are identified as FFARs for medium- and long-chain fatty acids. In the present study, we investigated roles of GPR120 and GPR40 in cellular functions of pancreatic cancer PANC-1 cells, using GPR120 and GPR40 knockdown cells (PANC-sh120 and PANC-sh40 cells respectively). In cell motility assay, PANC-sh120 cells showed the low cell motility, compared with control cells. In contrast, the cell motility of PANC-sh40 cells was significantly higher than that of control cells. Activity levels of matrix metalloproteinases (MMPs) were measured by gelatin zymography. While PANC-sh120 cells indicated the reduced MMP-2 activity, MMP-2 activity in PANC-sh40 cells was significantly higher than that in control cells. On the other hand, no activation of MMP-9 was detected in all cells. In colony assay, the large sized colonies were markedly formed in PANC-sh40 cells. No colony formation was observed in PANC-sh120 cells as well as control cells. These results suggest that distinct effects of GPR120 and GPR40 are involved in the acquisition of malignant property in pancreatic cancer cells.
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Affiliation(s)
- Kaori Fukushima
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kinki University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Eri Yamasaki
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kinki University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Shuhei Ishii
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kinki University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Ayaka Tomimatsu
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kinki University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Kaede Takahashi
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kinki University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Miku Hirane
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kinki University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Nobuyuki Fukushima
- Division of Molecular Neurobiology, Department of Life Science, Faculty of Science and Engineering, Kinki University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Kanya Honoki
- Department of Orthopedic Surgery, Nara Medical University, 840 Shijo-cho, Kashihara, Nara 634-8521, Japan
| | - Toshifumi Tsujiuchi
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kinki University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan.
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Honoki K, Fujii H, Kido A, Tsukamoto S, Mori T, Tanaka Y, Tsujiuchi T. Abstract 2222: Possible involvement of senescence bypass in mesenchymal stem cells for sarcomagenesis identified through a comparative gene expression profiling in rat sarcoma model. Cancer Res 2015. [DOI: 10.1158/1538-7445.am2015-2222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
INTRODUCTION. Mesenchymal stem cells (MSCs) exist in a variety of tissues such as bone marrow and adipose tissue contributing tissue repair and maintenance, and have been used in clinical cell transplantation therapy. On the other hand, MSCs are also believed to be one of the cell of origins for certain sarcomas including osteosarcoma and malignant fibrous histiocytoma/undifferentiated pleomorphic sarcoma (MFH/UPS). To identify the signaling pathways that are involved in sarcoma pathogenesis, we compared gene expression profiles in rat osteosarcoma and MFH cells with those in syngeneic rat MSCs.
MATERIALS & METHODS. Rat osteosarcoma cell line COS1NR and MFH cell line MFH1NR, that were established in our laboratory from chemically induced tumors by 4-hydroxy(amino)-quinolin 1-oxide, and syngeneic rat MSCs isolated from rat femur bone marrow were used in this study. To investigate the difference of gene expression between sarcoma cells and MSCs, gene expression profiling was performed by Agilent array analysis. Data analysis was carried out using Agilent Feature Extraction software, analyzing pathways that were differentially expressed in sarcoma cells compared to MSCs.
RESULTS & DISCUSSION. Analysis of genes that characterize MSCs such as CD44, CD105, CD73 and CD90 showed higher expression in MSCs compared to sarcomas. Pathways involved in focal adhesion, cytokines, extracellular matrix-receptors and Wnt signaling were down-regulated in both sarcomas. In those factors, the genes involved in senescence acceleration in MSCs including Wnt4 and 5a, Lef1/tcf, β-catenin, p21Cip1, lysophosphatidic acid receptor 1 (LPAR1) are significantly down-regulated in both sarcomas. Meanwhile, DNA replication, cell cycle, mismatch repair, hedgehog signaling and metabolic pathways were up-regulated in both sarcomas and those include the genes involved in inhibiting senescence of MSCs such as DKK1, SOD1, FOXO4 and SIRT1. These results indicated that senescence factors for MSCs, which several previous reports suggested, such as Wnt pathways, p21Cip1 and CDKs-cyclins expression are mal-functionally regulated in sarcomas, and those have been suggested the involvement of cellular senescence in MSCs as the responses to oxidative stress and DNA damages. Taken together, acquiring the ability to bypassing senescence in MSCs is possibly involved in sarcomagenesis.
CONCLUSIONS. The current study suggests that the loss of senescence mechanism in MSCs might be involved in sarcomagenesis. Further study will clarify the critical pathways containing the driver genes in sarcoma development upon the data that current results indicated and targeting those genes and pathways will be beneficial to develop novel treatment for sarcomas.
Citation Format: Kanya Honoki, Hiromasa Fujii, Akira Kido, Shinji Tsukamoto, Toshio Mori, Yasuhito Tanaka, Toshifumi Tsujiuchi. Possible involvement of senescence bypass in mesenchymal stem cells for sarcomagenesis identified through a comparative gene expression profiling in rat sarcoma model. [abstract]. In: Proceedings of the 106th Annual Meeting of the American Association for Cancer Research; 2015 Apr 18-22; Philadelphia, PA. Philadelphia (PA): AACR; Cancer Res 2015;75(15 Suppl):Abstract nr 2222. doi:10.1158/1538-7445.AM2015-2222
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Mori S, Araki M, Ishii S, Hirane M, Fukushima K, Tomimatsu A, Takahashi K, Fukushima N, Tsujiuchi T. LPA signaling through LPA receptors regulates cellular functions of endothelial cells treated with anticancer drugs. Mol Cell Biochem 2015; 408:147-54. [PMID: 26116018 DOI: 10.1007/s11010-015-2490-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2015] [Accepted: 06/18/2015] [Indexed: 10/23/2022]
Abstract
Lysophosphatidic acid (LPA) signaling via LPA receptors provides a variety of cellular functions, including angiogenesis. In this study, to assess an involvement of LPA receptors in cell motile activities of endothelial cells during chemotherapy, F-2 cells were treated with cisplatin (CDDP) and doxorubicin (DOX) at a concentration of 0.01 μM every 24 h for at least 1 month. The treatment of CDDP and DOX inhibited the expression levels of the LPA receptor-1 (Lpar1), Lpar2, and Lpar3 genes in F-2 cells. The cell motile activities of CDDP and DOX treated cells were relatively lower than those of untreated cells. Next, we investigated whether cancer cells could stimulate the cell motile activities of F-2 cells treated with CDDP and DOX. For cell motility assay, CDDP- and DOX-treated cells were co-cultured with pancreatic cancer PANC-1 cells. The cell motile activities of CDDP- and DOX-treated cells were significantly enhanced by the existence of PANC-1 cells, correlating with the LPA receptor expressions. In addition, the elevated cell motile activities were suppressed by the pretreatment of an autotaxin inhibitor S32826. These results suggest that LPA signaling via LPA receptors may regulate the cell motile activities of F-2 cells treated with anticancer drugs.
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Affiliation(s)
- Shiori Mori
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kinki University, 3-4-1, Kowakae, Higashiosaka, Osaka, 577-8502, Japan
| | - Mutsumi Araki
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kinki University, 3-4-1, Kowakae, Higashiosaka, Osaka, 577-8502, Japan
| | - Shuhei Ishii
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kinki University, 3-4-1, Kowakae, Higashiosaka, Osaka, 577-8502, Japan
| | - Miku Hirane
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kinki University, 3-4-1, Kowakae, Higashiosaka, Osaka, 577-8502, Japan
| | - Kaori Fukushima
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kinki University, 3-4-1, Kowakae, Higashiosaka, Osaka, 577-8502, Japan
| | - Ayaka Tomimatsu
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kinki University, 3-4-1, Kowakae, Higashiosaka, Osaka, 577-8502, Japan
| | - Kaede Takahashi
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kinki University, 3-4-1, Kowakae, Higashiosaka, Osaka, 577-8502, Japan
| | - Nobuyuki Fukushima
- Division of Molecular Neurobiology, Department of Life Science, Faculty of Science and Engineering, Kinki 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, Kinki University, 3-4-1, Kowakae, Higashiosaka, Osaka, 577-8502, Japan.
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Ishii S, Hirane M, Fukushima K, Tomimatsu A, Fukushima N, Tsujiuchi T. Diverse effects of LPA4, LPA5 and LPA6 on the activation of tumor progression in pancreatic cancer cells. Biochem Biophys Res Commun 2015; 461:59-64. [PMID: 25849892 DOI: 10.1016/j.bbrc.2015.03.169] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2015] [Accepted: 03/29/2015] [Indexed: 01/05/2023]
Abstract
Lysophosphatidic acid (LPA) is an extracellular biological lipid which interacts with G protein-coupled LPA receptors (LPA1 to LPA6). LPA signaling via LPA receptors mediates several cellular responses. In the present study, to assess the roles of LPA4, LPA5 and LPA6 in cellular functions of pancreatic cancer cells, we generated LPA receptor knockdown cells from PANC-1 cells (PANC-sh4, PANC-sh5 and PANC-sh6 cells, respectively). In cell motility assay, PANC-sh4 and PANC-sh5 cells enhanced the cell motile activities, compared with control cells. In contrast, the cell motile activity of PANC-sh6 cells was suppressed. The invasive activities of PANC-sh4 and PANC-sh5 cells were markedly stimulated, while PANC-sh6 cells showed the low invasive activity. In colony assay, PANC-sh4 and PANC-sh5 cells formed the large sized colonies, but not PANC-sh6 cells. When endothelial cells were incubated with supernatants from PANC-sh4 and PANC-sh5 cells, the cell motility and tube formation of endothelial cells were significantly induced, but not PANC-sh6 cells. These results suggest that the diverse roles of LPA4, LPA5 and LPA6 are involved in the activation of tumor progression in pancreatic cancer cells.
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Affiliation(s)
- Shuhei Ishii
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kinki University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Miku Hirane
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kinki University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Kaori Fukushima
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kinki University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Ayaka Tomimatsu
- Division of Molecular Oncology, Department of Life Science, Faculty of Science and Engineering, Kinki University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Nobuyuki Fukushima
- Division of Molecular Neurobiology, Department of Life Science, Faculty of Science and Engineering, Kinki 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, Kinki University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan.
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Fukushima N, Ishii S, Tsujiuchi T, Kagawa N, Katoh K. Comparative analyses of lysophosphatidic acid receptor-mediated signaling. Cell Mol Life Sci 2015; 72:2377-94. [PMID: 25732591 DOI: 10.1007/s00018-015-1872-8] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2014] [Revised: 02/16/2015] [Accepted: 02/23/2015] [Indexed: 12/14/2022]
Abstract
Lysophosphatidic acid (LPA) is a bioactive lipid mediator that activates G protein-coupled LPA receptors to exert fundamental cellular functions. Six LPA receptor genes have been identified in vertebrates and are classified into two subfamilies, the endothelial differentiation genes (edg) and the non-edg family. Studies using genetically engineered mice, frogs, and zebrafish have demonstrated that LPA receptor-mediated signaling has biological, developmental, and pathophysiological functions. Computational analyses have also identified several amino acids (aa) critical for LPA recognition by human LPA receptors. This review focuses on the evolutionary aspects of LPA receptor-mediated signaling by comparing the aa sequences of vertebrate LPA receptors and LPA-producing enzymes; it also summarizes the LPA receptor-dependent effects commonly observed in mouse, frog, and fish.
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Affiliation(s)
- Nobuyuki Fukushima
- Division of Molecular Neurobiology, Department of Life Science, Kinki University, Higashiosaka, 577-8502, Japan,
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Ishii S, Hirane M, Kato S, Fukushima N, Tsujiuchi T. Opposite effects of GPR120 and GPR40 on cell motile activity induced by ethionine in liver epithelial cells. Biochem Biophys Res Commun 2015; 456:135-8. [DOI: 10.1016/j.bbrc.2014.11.047] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2014] [Accepted: 11/13/2014] [Indexed: 11/30/2022]
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Ishii S, Hirane M, Kitamura Y, Mori S, Fukushima N, Honoki K, Tsujiuchi T. Role of GPR120 in cell motile activity induced by 12-O-tetradecanoylphorbol-13-acetate in liver epithelial WB-F344 cells. Mol Cell Biochem 2014; 400:145-51. [DOI: 10.1007/s11010-014-2270-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2014] [Accepted: 10/29/2014] [Indexed: 10/24/2022]
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Morimoto Y, Ishii S, Ishibashi JI, Katoh K, Tsujiuchi T, Kagawa N, Fukushima N. Functional lysophosphatidic acid receptors expressed in Oryzias latipes. Gene 2014; 551:189-200. [PMID: 25173740 DOI: 10.1016/j.gene.2014.08.056] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2014] [Revised: 08/11/2014] [Accepted: 08/27/2014] [Indexed: 10/24/2022]
Abstract
Lysophosphatidic acid (LPA) signaling is known to play biological and pathophysiological roles in many types of animals. Medaka (Oryzias latipes) is an experimental fish that can be easily maintained, propagated, and analyzed, and whose genome has been completely sequenced. However, there is limited information available regarding medaka LPA receptors. Here, using information from the medaka genome database, we examine the genomic structures, expression, and functions of six LPA receptor genes, Lpar1-Lpar6. Our analyses reveal that the genomic structures of Lpar1 and Lpar4 are different from those deduced from the database. Functional analyses using a heterologous expression system demonstrate that all medaka LPA receptors except for LPA5b respond to LPA treatment with cytoskeletal changes. These findings provide useful information on the structure and function of medaka LPA receptor genes, and identify medaka as a useful experimental model for exploration of the biological significance of LPA signaling.
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Affiliation(s)
- Yuji Morimoto
- Division of Molecular Neurobiology, Department of Life Science, Kinki University, Higashiosaka, Japan
| | - Shoichi Ishii
- Division of Molecular Neurobiology, Department of Life Science, Kinki University, Higashiosaka, Japan
| | - Jun-Ichi Ishibashi
- Division of Molecular Neurobiology, Department of Life Science, Kinki University, Higashiosaka, Japan
| | - Kazutaka Katoh
- Immunology Frontier Research Center, Osaka University, Suita, Osaka, Japan; Computational Biology Research Center, The National Institute of Advanced Industrial Science and Technology (AIST), Tokyo, Japan
| | - Toshifumi Tsujiuchi
- Division of Cancer Biology and Bioinformatics, Department of Life Science, Kinki University, Higashiosaka, Japan
| | - Nao Kagawa
- Division of Animal Genetics, Department of Life Science, Kinki University, Higashiosaka, Japan
| | - Nobuyuki Fukushima
- Division of Molecular Neurobiology, Department of Life Science, Kinki University, Higashiosaka, Japan.
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Araki M, Kitayoshi M, Dong Y, Hirane M, Ozaki S, Mori S, Fukushima N, Honoki K, Tsujiuchi T. Inhibitory effects of lysophosphatidic acid receptor-5 on cellular functions of sarcoma cells. Growth Factors 2014; 32:117-22. [PMID: 24798396 DOI: 10.3109/08977194.2014.911294] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Lysophosphatidic acid (LPA) is a bioactive lipid that interacts with G protein-coupled LPA receptors (LPA receptor-1 (LPA1) to LPA6). Here, we investigated the effects of LPA signaling via LPA5 on cellular functions of sarcoma cells by generating Lpar5 overexpressing and Lpar5 knockdown cells from rat osteosarcoma and malignant fibrous histiocytoma cells, respectively. The cell motility activity of Lpar5 overexpressing cells was significantly lower, while Lpar5 knockdown cells showed high cell motility, compared with respective controls. Gelatin zymography showed that LPA5 suppressed the activation of matrix metalloproteinase-2. LPA5 also inhibited the cell motility activity of endothelial cells, correlating with the expression levels of vascular endothelial growth factor genes. These results suggest that LPA signaling via LPA5 negatively regulates the cellular functions of rat sarcoma cells.
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