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Fujiwara K, Maekawa M, Iimori Y, Ogawa A, Urano T, Kono N, Takeda H, Higashiyama S, Arita M, Murai J. The crucial role of single-stranded DNA binding in enhancing sensitivity to DNA-damaging agents for Schlafen 11 and Schlafen 13. iScience 2023; 26:108529. [PMID: 38125019 PMCID: PMC10730379 DOI: 10.1016/j.isci.2023.108529] [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: 08/10/2023] [Revised: 10/19/2023] [Accepted: 11/20/2023] [Indexed: 12/23/2023] Open
Abstract
Schlafen (SLFN) 11 enhances cellular sensitivity to various DNA-damaging anticancer agents. Among the human SLFNs (SLFN5/11/12/13/14), SLFN11 is unique in its drug sensitivity and ability to block replication under DNA damage. In biochemical analysis, SLFN11 binds single-stranded DNA (ssDNA), and this binding is enhanced by the dephosphorylation of SLFN11. In this study, human cell-based assays demonstrated that a point mutation at the ssDNA-binding site of SLFN11 or a constitutive phosphorylation mutant abolished SLFN11-dependent drug sensitivity. Additionally, we discovered that nuclear SLFN13 with a point mutation mimicking the DNA-binding site of SLFN11 was recruited to chromatin, blocked replication, and enhanced drug sensitivity. Through generating multiple mutants and structure analyses of SLFN11 and SLFN13, we identified protein phosphatase 2A as a binding partner of SLFN11 and the putative binding motif in SLFN11. These findings provide crucial insights into the unique characteristics of SLFN11, contributing to a better understanding of its mechanisms.
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Affiliation(s)
- Kohei Fujiwara
- Division of Physiological Chemistry and Metabolism, Graduate School of Pharmaceutical Sciences, Keio University, Minato-Ku, Tokyo 105-8512, Japan
- Institute for Advanced Biosciences, Keio University, Tsuruoka, Yamagata 997-0052, Japan
- Laboratory for Metabolomics, RIKEN Center for Integrative Medical Sciences, Yokohama, Kanagawa 230-0045, Japan
| | - Masashi Maekawa
- Division of Physiological Chemistry and Metabolism, Graduate School of Pharmaceutical Sciences, Keio University, Minato-Ku, Tokyo 105-8512, Japan
| | - Yuki Iimori
- Institute for Advanced Biosciences, Keio University, Tsuruoka, Yamagata 997-0052, Japan
| | - Akane Ogawa
- Institute for Advanced Biosciences, Keio University, Tsuruoka, Yamagata 997-0052, Japan
| | - Takeshi Urano
- Department of Biochemistry, Faculty of Medicine, Shimane University, Izumo, Shimane 693-8501, Japan
- Center for Vaccines and Therapeutic Antibodies for Emerging Infectious Diseases, Shimane University, Izumo, Shimane 693-8501, Japan
| | - Nobuaki Kono
- Institute for Advanced Biosciences, Keio University, Tsuruoka, Yamagata 997-0052, Japan
- Systems Biology Program, Graduate School of Media and Governance, Keio University, Fujisawa, Kanagawa 252-0882, Japan
| | - Hiroyuki Takeda
- Division of Proteo-Drug-Discovery, Proteo-Science Center, Ehime University, Matsuyama, Ehime 790-8577, Japan
| | - Shigeki Higashiyama
- Division of Cell Growth and Tumor Regulation, Proteo-Science Center, Ehime University, Toon, Ehime 791-0295, Japan
- Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Toon, Ehime 791-0295, Japan
- Department of Oncogenesis and Tumor Regulation, Osaka International Cancer Institute, Chuo-Ku, Osaka 541-8567, Japan
| | - Makoto Arita
- Division of Physiological Chemistry and Metabolism, Graduate School of Pharmaceutical Sciences, Keio University, Minato-Ku, Tokyo 105-8512, Japan
- Laboratory for Metabolomics, RIKEN Center for Integrative Medical Sciences, Yokohama, Kanagawa 230-0045, Japan
- Human Biology-Microbiome-Quantum Research Center (WPI-Bio2Q), Keio University, Tokyo, Japan
- Cellular and Molecular Epigenetics Laboratory, Graduate School of Medical Life Science, Yokohama City University, Yokohama, Kanagawa 230-0045, Japan
| | - Junko Murai
- Institute for Advanced Biosciences, Keio University, Tsuruoka, Yamagata 997-0052, Japan
- Division of Cell Growth and Tumor Regulation, Proteo-Science Center, Ehime University, Toon, Ehime 791-0295, Japan
- Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Toon, Ehime 791-0295, Japan
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2
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Harada Y, Mizote Y, Suzuki T, Hirayama A, Ikeda S, Nishida M, Hiratsuka T, Ueda A, Imagawa Y, Maeda K, Ohkawa Y, Murai J, Freeze HH, Miyoshi E, Higashiyama S, Udono H, Dohmae N, Tahara H, Taniguchi N. Metabolic clogging of mannose triggers dNTP loss and genomic instability in human cancer cells. eLife 2023; 12:e83870. [PMID: 37461317 DOI: 10.7554/elife.83870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 06/12/2023] [Indexed: 07/20/2023] Open
Abstract
Mannose has anticancer activity that inhibits cell proliferation and enhances the efficacy of chemotherapy. How mannose exerts its anticancer activity, however, remains poorly understood. Here, using genetically engineered human cancer cells that permit the precise control of mannose metabolic flux, we demonstrate that the large influx of mannose exceeding its metabolic capacity induced metabolic remodeling, leading to the generation of slow-cycling cells with limited deoxyribonucleoside triphosphates (dNTPs). This metabolic remodeling impaired dormant origin firing required to rescue stalled forks by cisplatin, thus exacerbating replication stress. Importantly, pharmacological inhibition of de novo dNTP biosynthesis was sufficient to retard cell cycle progression, sensitize cells to cisplatin, and inhibit dormant origin firing, suggesting dNTP loss-induced genomic instability as a central mechanism for the anticancer activity of mannose.
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Affiliation(s)
- Yoichiro Harada
- Department of Glyco-Oncology and Medical Biochemistry, Research Institute, Osaka International Cancer Institute, Osaka, Japan
| | - Yu Mizote
- Department of Cancer Drug Discovery and Development, Research Institute, Osaka International Cancer Institute, Osaka, Japan
| | - Takehiro Suzuki
- Biomolecular Characterization Unit, RIKEN Center for Sustainable Resource Science, Saitama, Japan
| | - Akiyoshi Hirayama
- Institute for Advanced Biosciences, Keio University, Yamagata, Japan
- Systems Biology Program, Graduate School of Media and Governance, Keio University, Kanagawa, Japan
| | - Satsuki Ikeda
- Institute for Advanced Biosciences, Keio University, Yamagata, Japan
| | - Mikako Nishida
- Department of Immunology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Toru Hiratsuka
- Department of Oncogenesis and Growth Regulation, Research Institute, Osaka International Cancer Institute, Osaka, Japan
| | - Ayaka Ueda
- Department of Molecular Biochemistry and Clinical Investigation, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Yusuke Imagawa
- Department of Oncogenesis and Growth Regulation, Research Institute, Osaka International Cancer Institute, Osaka, Japan
| | - Kento Maeda
- Department of Glyco-Oncology and Medical Biochemistry, Research Institute, Osaka International Cancer Institute, Osaka, Japan
| | - Yuki Ohkawa
- Department of Glyco-Oncology and Medical Biochemistry, Research Institute, Osaka International Cancer Institute, Osaka, Japan
| | - Junko Murai
- Institute for Advanced Biosciences, Keio University, Yamagata, Japan
- Division of Cell Growth and Tumor Regulation, Proteo-Science Center, Ehime University, Ehime, Japan
- Department of Biochemistry and Molecular Genetics, Graduate School of Medicine, Ehime University, Ehime, Japan
| | - Hudson H Freeze
- Human Genetics Program, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, United States
| | - Eiji Miyoshi
- Department of Molecular Biochemistry and Clinical Investigation, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Shigeki Higashiyama
- Department of Oncogenesis and Growth Regulation, Research Institute, Osaka International Cancer Institute, Osaka, Japan
- Division of Cell Growth and Tumor Regulation, Proteo-Science Center, Ehime University, Ehime, Japan
- Department of Biochemistry and Molecular Genetics, Graduate School of Medicine, Ehime University, Ehime, Japan
| | - Heiichiro Udono
- Department of Immunology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Naoshi Dohmae
- Biomolecular Characterization Unit, RIKEN Center for Sustainable Resource Science, Saitama, Japan
| | - Hideaki Tahara
- Department of Cancer Drug Discovery and Development, Research Institute, Osaka International Cancer Institute, Osaka, Japan
- Project Division of Cancer Biomolecular Therapy, Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Naoyuki Taniguchi
- Department of Glyco-Oncology and Medical Biochemistry, Research Institute, Osaka International Cancer Institute, Osaka, Japan
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Sakaue T, Koyama T, Nakamura Y, Okamoto K, Kawashima T, Umeno T, Nakayama Y, Miyamoto S, Shikata F, Hamaguchi M, Aono J, Kurata M, Namiguchi K, Uchita S, Masumoto J, Yamaguchi O, Higashiyama S, Izutani H. Bioprosthetic Valve Deterioration: Accumulation of Circulating Proteins and Macrophages in the Valve Interstitium. JACC Basic Transl Sci 2023; 8:862-880. [PMID: 37547071 PMCID: PMC10401294 DOI: 10.1016/j.jacbts.2023.01.003] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 01/03/2023] [Accepted: 01/03/2023] [Indexed: 08/08/2023]
Abstract
Histologic evaluations revealed excessive accumulations of macrophages and absence of fibroblastic interstitial cells in explanted bioprosthetic valves. Comprehensive gene and protein expression analysis and histology unveiled an accumulation of fibrinogen and plasminogen, an activator of infiltrated macrophages, from degenerated valve surfaces in the interstitial spaces. These pathologies were completely reproduced in a goat model replaced with an autologous pericardium-derived aortic valve. Further preclinical animal experiments using goats demonstrated that preventing infiltration of macrophages and circulating proteins by increasing collagen density and leaflet strength is an effective treatment option.
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Affiliation(s)
- Tomohisa Sakaue
- Department of Cardiovascular and Thoracic Surgery, Ehime University Graduate School of Medicine, Toon, Japan
- Department of Cell Growth and Tumor Regulation, Proteo-Science Center, Toon, Japan
| | - Tadaaki Koyama
- Department of Cardiovascular Surgery, Kobe City Medical Center General Hospital, Kobe, Japan
| | - Yoshitsugu Nakamura
- Department of Cardiovascular Surgery, Chiba-Nishi General Hospital, Matsudo, Japan
| | - Keitaro Okamoto
- Department of Cardiovascular Surgery, Oita University, Yufu, Japan
| | | | - Tadashi Umeno
- Department of Cardiovascular Surgery, Oita University, Yufu, Japan
| | - Yasuhide Nakayama
- Department of Cardiovascular Surgery, Oita University, Yufu, Japan
- Biotube, Tokyo, Japan
| | - Shinji Miyamoto
- Department of Cardiovascular Surgery, Oita University, Yufu, Japan
| | - Fumiaki Shikata
- Department of Cardiovascular and Thoracic Surgery, Ehime University Graduate School of Medicine, Toon, Japan
| | - Mika Hamaguchi
- Department of Cardiology, Pulmonology, Hypertension, and Nephrology, Ehime University Graduate School of Medicine, Toon, Japan
| | - Jun Aono
- Department of Cardiology, Pulmonology, Hypertension, and Nephrology, Ehime University Graduate School of Medicine, Toon, Japan
| | - Mie Kurata
- Department of Pathology, Division of Analytical Pathology, Ehime University Graduate School of Medicine, Toom, Japan
- Department of Pathology, Proteo-Science Center, Toon, Japan
| | - Kenji Namiguchi
- Department of Cardiovascular and Thoracic Surgery, Ehime University Graduate School of Medicine, Toon, Japan
| | - Shunji Uchita
- Department of Cardiovascular and Thoracic Surgery, Ehime University Graduate School of Medicine, Toon, Japan
| | - Junya Masumoto
- Department of Pathology, Division of Analytical Pathology, Ehime University Graduate School of Medicine, Toom, Japan
- Department of Pathology, Proteo-Science Center, Toon, Japan
| | - Osamu Yamaguchi
- Department of Cardiology, Pulmonology, Hypertension, and Nephrology, Ehime University Graduate School of Medicine, Toon, Japan
| | - Shigeki Higashiyama
- Department of Cell Growth and Tumor Regulation, Proteo-Science Center, Toon, Japan
- Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Toon, Japan
- Department of Molecular and Cellular Biology, Research Center, Osaka International Cancer Institute, Osaka, Japan
| | - Hironori Izutani
- Department of Cardiovascular and Thoracic Surgery, Ehime University Graduate School of Medicine, Toon, Japan
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Sato S, Miyazaki M, Fukuda S, Mizutani Y, Mizukami Y, Higashiyama S, Inoue S. Human TMEM2 is not a catalytic hyaluronidase, but a regulator of hyaluronan metabolism via HYBID (KIAA1199/CEMIP) and HAS2 expression. J Biol Chem 2023:104826. [PMID: 37196767 DOI: 10.1016/j.jbc.2023.104826] [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: 03/08/2023] [Revised: 04/19/2023] [Accepted: 04/26/2023] [Indexed: 05/19/2023] Open
Abstract
Cutaneous hyaluronan (HA) is depolymerized to intermediate sizes in the extracellular matrix, and further fragmented in the regional lymph nodes. Previously, we showed that the HA-binding protein involved in HA depolymerization (HYBID), also known as KIAA1199/CEMIP, is responsible for the first step of HA depolymerization. Recently, mouse transmembrane 2 (mTMEM2) with high structural similarity to HYBID was proposed to be a membrane-bound hyaluronidase. However, we showed that knockdown of human TMEM2 (hTMEM2) conversely promoted HA depolymerization in normal human dermal fibroblasts (NHDFs). Therefore, we examined the HA-degrading activity and function of hTMEM2 using HEK293T cells. We found that human HYBID and mTMEM2, but not hTMEM2, degraded extracellular HA, indicating that hTMEM2 does not function as a catalytic hyaluronidase. Analysis of the HA-degrading activity of chimeric TMEM2 in HEK293T cells suggested the importance of the mouse GG domain. Therefore, we focused on the amino acid residues that are conserved in active mouse and human HYBID and mTMEM2, but are substituted in hTMEM2. The HA-degrading activity of mTMEM2 was abolished when its His248 and Ala303 were simultaneously replaced by the corresponding residues of inactive hTMEM2 (Asn248 and Phe303). In NHDFs, enhancement of hTMEM2 expression by proinflammatory cytokines decreased HYBID expression and increased hyaluronan synthase 2 (HAS2)-dependent HA production. The effects of proinflammatory cytokines were abrogated by hTMEM2 knockdown. Moreover, a decreased HYBID expression by interleukin-1β and transforming growth factor-β was canceled by hTMEM2 knockdown. In conclusion, these results indicate that hTMEM2 is not a catalytic hyaluronidase, but a regulator of HA metabolism.
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Affiliation(s)
- Shinya Sato
- Department of Cosmetic Health Science, Gifu Pharmaceutical University, 1-25-4 Daigakunishi, Gifu 501-1196, Japan
| | - Megumi Miyazaki
- Department of Cosmetic Health Science, Gifu Pharmaceutical University, 1-25-4 Daigakunishi, Gifu 501-1196, Japan
| | - Shinji Fukuda
- Department of Biochemistry, School of Dentistry, Aichi Gakuin University, 1-100 Kusumoto-cho, Chikusaku, Nagoya, Aichi 464-8650, Japan
| | - Yukiko Mizutani
- Department of Cosmetic Health Science, Gifu Pharmaceutical University, 1-25-4 Daigakunishi, Gifu 501-1196, Japan
| | - Yoichi Mizukami
- Institute of Gene Research, Yamaguchi University Science Research Center, 1-1-1 Minami-Kogushi, Ube, Yamaguchi 755-8505, Japan
| | - Shigeki Higashiyama
- Department of Cell Growth and Tumor Regulation, Proteo-Science Center, and; Department of Biochemistry and Molecular Genetics, Graduate School of Medicine, Ehime University, Shitsukawa, Toon, Ehime 791-0295, Japan; Department of Oncogenesis and Growth Regulation, Osaka International Cancer Institute, 3-1-69 Otemae, Chuoku, Osaka 541-8567, Japan
| | - Shintaro Inoue
- Department of Cosmetic Health Science, Gifu Pharmaceutical University, 1-25-4 Daigakunishi, Gifu 501-1196, Japan.
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Tanaka M, Nakamura S, Sakaue T, Yamamoto T, Maekawa M, Nishinaka A, Yasuda H, Yunoki K, Sato Y, Sawa M, Yoshino K, Shimazawa M, Hatano M, Tokuhisa T, Higashiyama S, Hara H. BCL6B (B-Cell CLL/Lymphoma 6 Member B Protein) Contributes to Ocular Vascular Diseases via Notch Signal Silencing. Arterioscler Thromb Vasc Biol 2023; 43:927-942. [PMID: 37078291 DOI: 10.1161/atvbaha.123.318987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/21/2023]
Abstract
BACKGROUND Endothelial cell activation is tightly controlled by the balance between VEGF (vascular endothelial cell growth factor) and Notch signaling pathway. VEGF destabilizes blood vessels and promotes neovascularization, which are common features of sight-threatening ocular vascular disorders. Here, we show that BCL6B (B-cell CLL/lymphoma 6 member B protein), also known as BAZF, ZBTB28, and ZNF62, plays a pivotal role in the development of retinal edema and neovascularization. METHODS The pathophysiological physiological role of BCL6B was investigated in cellular and animal models mimicking 2 pathological conditions: retinal vein occlusion and choroidal neovascularization. An in vitro experimental system was used in which human retinal microvascular endothelial cells were supplemented with VEGF. Choroidal neovascularization cynomolgus monkey model was generated to investigate the involvement of BCL6B in the pathogenesis. Mice lacking BCL6B or treated with BCL6B-targeting small-interfering ribose nucleic acid were examined for histological and molecular phenotypes. RESULTS In retinal endothelial cells, the BCL6B expression level was increased by VEGF. BCL6B-deficient endothelial cells showed Notch signal activation and attenuated cord formation via blockage of the VEGF-VEGFR2 signaling pathway. Optical coherence tomography images showed that choroidal neovascularization lesions were decreased by BCL6B-targeting small-interfering ribose nucleic acid. Although BCL6B mRNA expression was significantly increased in the retina, BCL6B-targeting small-interfering ribose nucleic acid suppressed ocular edema in the neuroretina. The increase in proangiogenic cytokines and breakdown of the inner blood-retinal barrier were abrogated in BCL6B knockout (KO) mice via Notch transcriptional activation by CBF1 (C promotor-binding factor 1) and its activator, the NICD (notch intracellular domain). Immunostaining showed that Müller cell activation, a source of VEGF, was diminished in BCL6B-KO retinas. CONCLUSIONS These data indicate that BCL6B may be a novel therapeutic target for ocular vascular diseases characterized by ocular neovascularization and edema.
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Affiliation(s)
- Miruto Tanaka
- Molecular Pharmacology, Department of Biofunctional Evaluation, Gifu Pharmaceutical University, Japan (M.T., S.N., T.Y., A.N., H.Y., M.S., H.H.)
| | - Shinsuke Nakamura
- Molecular Pharmacology, Department of Biofunctional Evaluation, Gifu Pharmaceutical University, Japan (M.T., S.N., T.Y., A.N., H.Y., M.S., H.H.)
| | - Tomohisa Sakaue
- Division of Cell Growth and Tumor Regulation, Proteo-Science Center, Ehime University, Japan (T.S., S.H.)
- Department of Cardiovascular and Thoracic Surgery, Ehime University Graduate School of Medicine, Japan (T.S.)
| | - Takumi Yamamoto
- Molecular Pharmacology, Department of Biofunctional Evaluation, Gifu Pharmaceutical University, Japan (M.T., S.N., T.Y., A.N., H.Y., M.S., H.H.)
| | - Masashi Maekawa
- Division of Physiological Chemistry and Metabolism, Graduate School of Pharmaceutical Sciences, Keio University, Minato‑ku, Tokyo, Japan (M.M.)
| | - Anri Nishinaka
- Molecular Pharmacology, Department of Biofunctional Evaluation, Gifu Pharmaceutical University, Japan (M.T., S.N., T.Y., A.N., H.Y., M.S., H.H.)
| | - Hiroto Yasuda
- Molecular Pharmacology, Department of Biofunctional Evaluation, Gifu Pharmaceutical University, Japan (M.T., S.N., T.Y., A.N., H.Y., M.S., H.H.)
| | - Kaori Yunoki
- Carna Biosciences, Inc., Kobe, Japan (K. Yunoki, Y.S., M.S., K. Yoshino)
| | - Yuji Sato
- Carna Biosciences, Inc., Kobe, Japan (K. Yunoki, Y.S., M.S., K. Yoshino)
| | - Masaaki Sawa
- Molecular Pharmacology, Department of Biofunctional Evaluation, Gifu Pharmaceutical University, Japan (M.T., S.N., T.Y., A.N., H.Y., M.S., H.H.)
- Carna Biosciences, Inc., Kobe, Japan (K. Yunoki, Y.S., M.S., K. Yoshino)
| | - Kohichiro Yoshino
- Carna Biosciences, Inc., Kobe, Japan (K. Yunoki, Y.S., M.S., K. Yoshino)
| | - Masamitsu Shimazawa
- Laboratory of Collaborative research for Innovative Drug Discovery, Gifu Pharmaceutical University, Japan (M.S.)
| | | | - Takeshi Tokuhisa
- Department of Developmental Genetics (T.T.)
- Graduate School of Medicine, Chiba University, Japan (T.T.)
| | - Shigeki Higashiyama
- Division of Cell Growth and Tumor Regulation, Proteo-Science Center, Ehime University, Japan (T.S., S.H.)
- Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Toon, Japan (S.H.)
- Department of Oncogenesis and Growth Regulation, Osaka International Cancer Institute, Japan (S.H.)
| | - Hideaki Hara
- Molecular Pharmacology, Department of Biofunctional Evaluation, Gifu Pharmaceutical University, Japan (M.T., S.N., T.Y., A.N., H.Y., M.S., H.H.)
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Sanada S, Maekawa M, Tate S, Nakaoka H, Fujisawa Y, Sayama K, Higashiyama S. SPOP is essential for DNA replication licensing through maintaining translation of CDT1 and CDC6 in HaCaT cells. Biochem Biophys Res Commun 2023; 651:30-38. [PMID: 36791496 DOI: 10.1016/j.bbrc.2023.02.012] [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: 01/20/2023] [Accepted: 02/03/2023] [Indexed: 02/05/2023]
Abstract
Speckle-type pox virus and zinc finger (POZ) protein (SPOP), a substrate recognition receptor for the cullin-3/RING ubiquitin E3 complex, leads to the ubiquitination of >40 of its target substrates. Since a variety of point mutations in the substrate-binding domain of SPOP have been identified in cancers, including prostate and endometrial cancers, the pathological roles of those cancer-associated SPOP mutants have been extensively elucidated. In this study, we evaluated the cellular functions of wild-type SPOP in non-cancerous human keratinocyte-derived HaCaT cells expressing wild-type SPOP gene. SPOP knockdown using siRNA in HaCaT cells dramatically reduced cell growth and arrested their cell cycles at G1/S phase. The expression of DNA replication licensing factors CDT1 and CDC6 in HaCaT cells drastically decreased on SPOP knockdown as their translation was inhibited. CDT1 and CDC6 downregulation induced p21 expression without p53 activation. Our results suggest that SPOP is essential for DNA replication licensing in non-cancerous keratinocyte HaCaT cells.
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Affiliation(s)
- Sayoko Sanada
- Department of Dermatology, Ehime University Graduate School of Medicine, Toon, Ehime, 791-0295, Japan; Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Toon, Ehime, 791-0295, Japan
| | - Masashi Maekawa
- Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Toon, Ehime, 791-0295, Japan; Division of Cell Growth and Tumor Regulation, Proteo-Science Center, Ehime University, Toon, Ehime, 791-0295, Japan.
| | - Sota Tate
- Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Toon, Ehime, 791-0295, Japan; Division of Cell Growth and Tumor Regulation, Proteo-Science Center, Ehime University, Toon, Ehime, 791-0295, Japan
| | - Hiroki Nakaoka
- Department of Dermatology, Ehime University Graduate School of Medicine, Toon, Ehime, 791-0295, Japan
| | - Yasuhiro Fujisawa
- Department of Dermatology, Ehime University Graduate School of Medicine, Toon, Ehime, 791-0295, Japan
| | - Koji Sayama
- Department of Dermatology, Ehime University Graduate School of Medicine, Toon, Ehime, 791-0295, Japan
| | - Shigeki Higashiyama
- Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Toon, Ehime, 791-0295, Japan; Division of Cell Growth and Tumor Regulation, Proteo-Science Center, Ehime University, Toon, Ehime, 791-0295, Japan; Department of Oncogenesis and Tumor Regulation, Osaka International Cancer Institute, Chuo-ku, Osaka, 541-8567, Japan.
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7
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Hayashi Y, Nakayama J, Yamamoto M, Maekawa M, Watanabe S, Higashiyama S, Inoue JI, Yamamoto Y, Semba K. Aberrant accumulation of NIK promotes tumor growth by dysregulating translation and post-translational modifications in breast cancer. Cancer Cell Int 2023; 23:57. [PMID: 37005661 PMCID: PMC10067241 DOI: 10.1186/s12935-023-02904-y] [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] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 03/24/2023] [Indexed: 04/04/2023] Open
Abstract
BACKGROUND In vivo investigations with cancer cells have powerful tools to discover cancer progression mechanisms and preclinical candidate drugs. Among these in vivo experimental models, the establishment of highly malignancy cell lines with xenograft has been frequently used. However, few previous researches targeted malignancy-related genes whose protein levels translationally changed. Therefore, this study aimed to identify malignancy-related genes which contributed to cancer progression and changed at the protein level in the in vivo selected cancer cell lines. METHODS We established the high malignancy breast cancer cell line (LM05) by orthotopic xenograft as an in vivo selection method. To explore the altered genes by translational or post-translational regulation, we analyzed the protein production by western blotting in the highly malignant breast cancer cell line. Functional analyses of the altered genes were performed by in vitro and in vivo experiments. To reveal the molecular mechanisms of the regulation with protein level, we evaluated post-translational modification by immunoprecipitation. In addition, we evaluated translational production by click reaction-based purification of nascent protein. RESULTS As a result, NF-κB inducing kinase (NIK) increased at the protein level and promoted the nuclear localization of NF-κB2 (p52) and RelB in the highly malignant breast cancer cell line. The functional analyses indicated the NIK upregulation contributed to tumor malignancy via cancer-associated fibroblasts (CAFs) attraction and partially anti-apoptotic activities. Additionally, the immunoprecipitation experiment revealed that the ubiquitination of NIK decreased in LM05 cells. The decline in NIK ubiquitination was attributed to the translational downregulation of cIAP1. CONCLUSIONS Our study identified a dysregulated mechanism of NIK production by the suppression of NIK post-modification and cIAP1 translation. The aberrant NIK accumulation promoted tumor growth in the highly malignant breast cancer cell line.
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Affiliation(s)
- Yusuke Hayashi
- Department of Life Science and Medical Bioscience, School of Advanced Science and Engineering, Waseda University, TWIns, 2-2 Wakamatsu-Cho, Shinjuku-Ku, Tokyo, 162-8480, Japan
- Laboratory of Integrative Oncology, National Cancer Center Research Institute, 5-1-1 Tsukiji, Chuo-Ku, Tokyo, 104-0045, Japan
| | - Jun Nakayama
- Department of Life Science and Medical Bioscience, School of Advanced Science and Engineering, Waseda University, TWIns, 2-2 Wakamatsu-Cho, Shinjuku-Ku, Tokyo, 162-8480, Japan.
- Laboratory of Integrative Oncology, National Cancer Center Research Institute, 5-1-1 Tsukiji, Chuo-Ku, Tokyo, 104-0045, Japan.
| | - Mizuki Yamamoto
- Research Center for Asian Infectious Diseases, The Institute of Medical Science, The University of Tokyo, Shirokane-Dai, Minato-Ku, Tokyo, 108-8639, Japan
| | - Masashi Maekawa
- Division of Cell Growth and Tumor Regulation, Proteo-Science Center, Ehime University, Toon, 791-0295, Japan
- Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Toon, 791-0295, Japan
- Division of Physiological Chemistry and Metabolism, Graduate School of Pharmaceutical Sciences, Keio University, Minato-Ku, Tokyo, 105-8512, Japan
| | - Shinya Watanabe
- Translational Research Center, Fukushima Medical University, Fukushima, 960-1295, Japan
| | - Shigeki Higashiyama
- Division of Cell Growth and Tumor Regulation, Proteo-Science Center, Ehime University, Toon, 791-0295, Japan
- Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Toon, 791-0295, Japan
- Department of Molecular and Cellular Biology, Osaka International Cancer Institute, Chuo-Ku, Osaka, 541-8567, Japan
| | - Jun-Ichiro Inoue
- Research Platform Office, The Institute of Medical Science, The University of Tokyo, Shirokane-Dai, Minato-Ku, Tokyo, 108-8639, Japan
| | - Yusuke Yamamoto
- Laboratory of Integrative Oncology, National Cancer Center Research Institute, 5-1-1 Tsukiji, Chuo-Ku, Tokyo, 104-0045, Japan
| | - Kentaro Semba
- Department of Life Science and Medical Bioscience, School of Advanced Science and Engineering, Waseda University, TWIns, 2-2 Wakamatsu-Cho, Shinjuku-Ku, Tokyo, 162-8480, Japan.
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8
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Seefried F, Haller L, Fukuda S, Thongmao A, Schneider N, Utikal J, Higashiyama S, Bosserhoff AK, Kuphal S. Nuclear
AREG
affects a low‐proliferative phenotype and contributes to drug resistance of melanoma. Int J Cancer 2022; 151:2244-2264. [DOI: 10.1002/ijc.34254] [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] [Received: 12/03/2021] [Revised: 07/15/2022] [Accepted: 08/09/2022] [Indexed: 11/09/2022]
Affiliation(s)
- Felix Seefried
- Institute of Biochemistry, Friedrich Alexander University Erlangen‐Nürnberg, Fahrstrasse17 Erlangen Germany
| | - Lucia Haller
- Institute of Biochemistry, Friedrich Alexander University Erlangen‐Nürnberg, Fahrstrasse17 Erlangen Germany
| | - Shinji Fukuda
- Department of Biochemistry, School of Dentistry Aichi Gakuin University Nagoya Japan
| | - Aranya Thongmao
- Institute of Biochemistry, Friedrich Alexander University Erlangen‐Nürnberg, Fahrstrasse17 Erlangen Germany
| | - Nadja Schneider
- Institute of Biochemistry, Friedrich Alexander University Erlangen‐Nürnberg, Fahrstrasse17 Erlangen Germany
| | - Jochen Utikal
- Department of Dermatology Heidelberg University, Mannheim, Germany; Skin Cancer Unit, German Cancer Research Center (DKFZ), Heidelberg Germany
| | - Shigeki Higashiyama
- Division of Cell Growth and Tumour Regulation, Proteo‐Science Center Ehime University, Toon, 791‐0295, Japan and Department of Molecular and Cellular Biology, Osaka International Cancer Institute Osaka Japan
| | - Anja Katrin Bosserhoff
- Institute of Biochemistry, Friedrich Alexander University Erlangen‐Nürnberg, Fahrstrasse17 Erlangen Germany
| | - Silke Kuphal
- Institute of Biochemistry, Friedrich Alexander University Erlangen‐Nürnberg, Fahrstrasse17 Erlangen Germany
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9
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Ueda N, Maekawa M, Matsui TS, Deguchi S, Takata T, Katahira J, Higashiyama S, Hieda M. Inner Nuclear Membrane Protein, SUN1, is Required for Cytoskeletal Force Generation and Focal Adhesion Maturation. Front Cell Dev Biol 2022; 10:885859. [PMID: 35663386 PMCID: PMC9157646 DOI: 10.3389/fcell.2022.885859] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 05/02/2022] [Indexed: 12/20/2022] Open
Abstract
The linker of nucleoskeleton and cytoskeleton (LINC) complex is composed of the inner nuclear membrane-spanning SUN proteins and the outer nuclear membrane-spanning nesprin proteins. The LINC complex physically connects the nucleus and plasma membrane via the actin cytoskeleton to perform diverse functions including mechanotransduction from the extracellular environment to the nucleus. Mammalian somatic cells express two principal SUN proteins, namely SUN1 and SUN2. We have previously reported that SUN1, but not SUN2, is essential for directional cell migration; however, the underlying mechanism remains elusive. Because the balance between adhesive force and traction force is critical for cell migration, in the present study, we focused on focal adhesions (FAs) and the actin cytoskeleton. We observed that siRNA-mediated SUN1 depletion did not affect the recruitment of integrin β1, one of the ubiquitously expressed focal adhesion molecules, to the plasma membrane. Consistently, SUN1-depleted cells normally adhered to extracellular matrix proteins, including collagen, fibronectin, laminin, and vitronectin. In contrast, SUN1 depletion reduced the activation of integrin β1. Strikingly, the depletion of SUN1 interfered with the incorporation of vinculin into the focal adhesions, whereas no significant differences in the expression of vinculin were observed between wild-type and SUN1-depleted cells. In addition, SUN1 depletion suppressed the recruitment of zyxin to nascent focal adhesions. These data indicate that SUN1 is involved in the maturation of focal adhesions. Moreover, disruption of the SUN1-containing LINC complex abrogates the actin cytoskeleton and generation of intracellular traction force, despite the presence of SUN2. Thus, a physical link between the nucleus and cytoskeleton through SUN1 is required for the proper organization of actin, thereby suppressing the incorporation of vinculin and zyxin into focal adhesions and the activation of integrin β1, both of which are dependent on traction force. This study provides insights into a previously unappreciated signaling pathway from the nucleus to the cytoskeleton, which is in the opposite direction to the well-known mechanotransduction pathways from the extracellular matrix to the nucleus.
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Affiliation(s)
- Nanami Ueda
- Department of Medical Technology, Ehime Prefectural University of Health Sciences, Tobe, Japan
| | - Masashi Maekawa
- Division of Cell Growth and Tumor Regulation, Proteo-Science Center (PROS), Ehime University, Matsuyama, Japan
- Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Toon, Japan
- Division of Physiological Chemistry and Metabolism, Graduate School of Pharmaceutical Sciences, Keio University, Tokyo, Japan
| | | | - Shinji Deguchi
- Division of Bioengineering, Osaka University, Toyonaka, Japan
| | - Tomoyo Takata
- Department of Medical Technology, Ehime Prefectural University of Health Sciences, Tobe, Japan
| | - Jun Katahira
- Department of Veterinary Sciences, Osaka Prefecture University, Sakai, Japan
| | - Shigeki Higashiyama
- Division of Cell Growth and Tumor Regulation, Proteo-Science Center (PROS), Ehime University, Matsuyama, Japan
- Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Toon, Japan
- Department of Oncogenesis and Growth Regulation, Osaka International Cancer Institute, Osaka, Japan
| | - Miki Hieda
- Department of Medical Technology, Ehime Prefectural University of Health Sciences, Tobe, Japan
- *Correspondence: Miki Hieda,
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10
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Nakayama H, Ohnuki H, Nakahara M, Nishida-Fukuda H, Sakaue T, Fukuda S, Higashiyama S, Doi Y, Mitsuyoshi M, Okimoto T, Tosato G, Kusumoto C. Inactivation of axon guidance molecule netrin-1 in human colorectal cancer by an epigenetic mechanism. Biochem Biophys Res Commun 2022; 611:146-150. [PMID: 35489200 DOI: 10.1016/j.bbrc.2022.04.069] [Citation(s) in RCA: 5] [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: 04/12/2022] [Accepted: 04/15/2022] [Indexed: 01/16/2023]
Abstract
Netrin-1, the protein product of the NTN1 gene, is an axon guidance molecule implicated in regulation of cell survival and tumorigenesis. Expression of the netrin-1 receptors deleted in colorectal cancer (DCC) and uncoordinated 5 homolog (UNC5H) is frequently silenced in colorectal cancer (CRC) by either loss of heterozygosity or epigenetic mechanisms. However, netrin-1 expression and regulation in CRC are mostly unknown. Here, we report that NTN1 expression is significantly reduced in most CRC tissues compared to the adjacent normal intestinal mucosa, and that NTN1 DNA methylation is significantly higher in CRCs (24.6%) than in the adjacent normal intestinal mucosa (4.0%). In 6 CRC cell lines, NTN1 expression is low. Treatment with 5-Aza-2'-deoxycytidine increased expression of NTN1 in CRC cell lines, indicating that DNA methylation represses NTN1 transcription in CRCs. NTN1 DNA hypermethylation was significantly associated with advanced CRC disease. Median netrin-1 serum levels were significantly decreased in CRC patients (330.1 pg/mL) compared with normal individuals (438.6 pg/mL). Our results suggest that netrin-1 is a candidate biomarker for CRC.
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Affiliation(s)
- Hironao Nakayama
- Department of Medical Science and Technology, Hiroshima International University, Higashi-hiroshima, Hiroshima, 739-2695, Japan.
| | - Hidetaka Ohnuki
- Laboratory of Cellular Oncology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Masako Nakahara
- Department of Medical Science and Technology, Hiroshima International University, Higashi-hiroshima, Hiroshima, 739-2695, Japan
| | - Hisayo Nishida-Fukuda
- Department of Genome Editing, Institute of Biomedical Science, Kansai Medical University, Hirakata, Osaka, 5731010, Japan
| | - Tomohisa Sakaue
- Division of Cell Growth and Tumor Regulation, Proteo-Science Center, Ehime University, Toon, Shitsukawa, Ehime, 791-0295, Japan; Department of Cardiovascular and Thoracic Surgery, Ehime University Graduate School of Medicine, Toon, Shitsukawa, Ehime, 791-0295, Japan
| | - Shinji Fukuda
- Division of Cell Growth and Tumor Regulation, Proteo-Science Center, Ehime University, Toon, Shitsukawa, Ehime, 791-0295, Japan; Department of Biochemistry, School of Dentistry, Aichi Gakuin University, Nagoya, Aichi, 464-8650, Japan
| | - Shigeki Higashiyama
- Division of Cell Growth and Tumor Regulation, Proteo-Science Center, Ehime University, Toon, Shitsukawa, Ehime, 791-0295, Japan; Department of Molecular and Cellular Biology, Osaka International Cancer Institute, Chuo-ku, Osaka, 541-8567, Japan
| | - Yuki Doi
- Department of Surgery, Nippon Kokan Fukuyama Hospital, Fukuyama, Hiroshima, 721-0927, Japan
| | - Masahiro Mitsuyoshi
- Department of Surgery, Nippon Kokan Fukuyama Hospital, Fukuyama, Hiroshima, 721-0927, Japan; Department of Surgery I, School of Medicine, University of Occupational and Environmental Health, Kita-kyushu, Fukuoka, 807-0804, Japan
| | - Takashi Okimoto
- Department of Surgery, Nippon Kokan Fukuyama Hospital, Fukuyama, Hiroshima, 721-0927, Japan; Department of Surgery, Kyushu Rosai Hospital, Kita-kyushu, Fukuoka, 800-0296, Japan
| | - Giovanna Tosato
- Laboratory of Cellular Oncology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Chiaki Kusumoto
- Department of Medical Science and Technology, Hiroshima International University, Higashi-hiroshima, Hiroshima, 739-2695, Japan; Department of Gastroenterology, Nippon Kokan Fukuyama Hospital, Fukuyama, Hiroshima, 721-0927, Japan.
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11
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Watanabe R, Maekawa M, Kiyoi T, Kurata M, Miura N, Kikugawa T, Higashiyama S, Saika T. Effect of PSMA-positive membranes secreted from prostate cancer cells on vascular endothelial cells. J Clin Oncol 2022. [DOI: 10.1200/jco.2022.40.6_suppl.141] [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: 11/20/2022] Open
Abstract
141 Background: Prostate-specific membrane antigen (PSMA) is highly expressed in poorly differentiated, metastatic, and castration-resistant prostate cancers. Recently, 68Ga-PSMA positron emission tomography/computed tomography has been successfully developed as an effective diagnostic tool for prostate cancer. However, the pathophysiological functions of PSMA in prostate tumors remain unclear. Methods: We examined the protein expression of PSMA in tumor endothelial cells in human prostate tumors by immunohistochemistry. Prostate cancer tissues were resected from patients with prostate cancer via robotic surgery in 2019 at Ehime University. In vitro, we prepared conditioned medium derived from a PSMA-positive human prostate cancer cell line, LNCaP, cultured on collagen I gels. We then examined PSMA expression in human umbilical vascular endothelial cells (HUVECs) cultured with the conditioned medium. We assessed angiogenic activities by treating HUVECs with LNCaP-derived conditioned medium using a tube formation assay that mimics angiogenesis. Results: Immunohistochemical positivity of PSMA and CD31, a marker of endothelial cells, and PSMA-expressing tumor endothelial cells were observed in four of 33 prostate cancer patients (12.1%). We also found that the 10,000 ´ g pellet fraction of the LNCaP-derived conditioned medium containing PSMA-positive membranes, including microvesicles, transformed HUVECs from “PSMA-negative” to “PSMA-positive.” Mass spectrometry revealed that the fraction contained an important growth factor. Furthermore, treating HUVECs with the 10,000 ´ g pellet fraction of the LNCaP-derived conditioned medium significantly promoted tube formation, mimicking angiogenesis in a PSMA-dependent manner. Conclusions: Our findings revealed the existence of PSMA-positive tumor endothelial cells in human prostate tumors, which were found to enhance tumor angiogenesis in prostate cancer tissues. The endocytic process related to these PSMA-positive microvesicles in normal endothelial cells might be an attractive target to develop novel anti-angiogenic drugs, which could inhibit the transformation of normal endothelial cells into tumor endothelial cells (Watanabe et al., The Prostate. 2021. in press).
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Affiliation(s)
- Ryuta Watanabe
- Department of Urology, Ehime University Graduate School of Medicine, Ehime, Japan
| | - Masashi Maekawa
- Division of Physiological Chemistry and Metabolism, Graduate School of Pharmaceutical Sciences, Keio University, Tokyo, Japan
| | - Takeshi Kiyoi
- Department of Pharmacology, Kanazawa Medical University, Ishikawa, Japan
| | - Mie Kurata
- Department of Pathology, Ehime University Graduate School of Medicine and Proteo-Science Center, Ehime, Japan
| | - Noriyoshi Miura
- Department of Urology, Ehime University Graduate School of Medicine, Ehime, Japan
| | - Tadahiko Kikugawa
- Department of Urology, Ehime University Graduate School of Medicine, Ehime, Japan
| | - Shigeki Higashiyama
- Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Toon, Japan
| | - Takashi Saika
- Department of Urology, Ehime University Graduate School of Medicine, Ehime, Japan
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12
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Nishiyama K, Maekawa M, Murakami A, Utsunomiya K, Takemoto K, Kusakabe E, Noda H, Aoki R, Taguchi K, Yamashita M, Nakagita T, Nakayama J, Chosei M, Kiyoi T, Kamei Y, Takeda H, Takada Y, Higashiyama S. Abstract P5-10-02: A novel mechanism of phosphatase activation for EGFR by Cullin-3/KCTD10 ubiquitin E3 complex in HER2-positive breast cancer cells. Cancer Res 2022. [DOI: 10.1158/1538-7445.sabcs21-p5-10-02] [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
Overexpression of human epidermal growth factor receptor 2 (HER2) in breast cancer is correlated with poor prognosis. HER2-targeting drugs have been successful to treat HER2-positive breast cancer. However, the acquisition of the drug resistance with long-term use is still recognized. Here we report the novel molecular targets to treat HER2-positive breast cancer. HER2 is a key driving forces to proliferate HER2-positive breast cancer cells. Unlike other HER family members (EGFR, HER3, HER4), it recognizes no ligands and forms heterodimers with each other member, leading to the transduction of various cellular signals. Especially, the activated EGFR transactivates HER2, and the phosphorylation of both EGFR and HER2 strongly drives cell proliferation. In this study, we found that the degradation of an endosomal small GTPase, RhoB, by the ubiquitin ligase complex cullin-3 (CUL3)/KCTD10 is essential for both EGFR and HER2 phosphorylation in HER2-positive breast cancer cells. Depletion of CUL3 or KCTD10 drastically reduced the phosphorylation of EGFR and HER2, as well as HER2-positive breast cancer cell proliferation. As mechanisms, we identified a RhoB-interacting scaffold protein and an EGFR phosphatase from human protein arrays prepared by the wheat cell-free protein synthesis system, a unique technology of Ehime University. In HER2-positive breast cancer cells, we showed that the scaffold protein interacts with the EGFR phosphatase at the plasma membrane, which leads to inactivation of the EGFR phosphatase and inhibits EGFR dephosphorylation. Upon CUL3- or KCTD10-knockdwon, accumulated RhoB interacts with the scaffold protein, resulting in the release of active EGFR phosphatase. Using the METABRIC database, we next found that low expression of RhoB mRNA and high expression of scaffold protein correlate with poor prognosis for HER2-positive breast cancer patients. Additionally, high expression of scaffold protein was associated with poor prognosis in immunohistochemistry of HER2-positive breast cancer tissues. These data suggest that high expression of scaffold protein enhances cell proliferative signaling in HER2-positive breast cancers. The inhibitors of the scaffold protein/EGFR phosphatase interaction would be new therapeutic agents for HER2-positive breast cancer cells through EGFR dephosphorylation mediated by activation of the EGFR phosphatase.
Citation Format: Kanako Nishiyama, Masashi Maekawa, Akari Murakami, Kaho Utsunomiya, Kana Takemoto, Erina Kusakabe, Haruna Noda, Reina Aoki, Kana Taguchi, Michiko Yamashita, Tomoya Nakagita, Jun Nakayama, Mami Chosei, Takeshi Kiyoi, Yoshiaki Kamei, Hiroyuki Takeda, Yasutsugu Takada, Shigeki Higashiyama. A novel mechanism of phosphatase activation for EGFR by Cullin-3/KCTD10 ubiquitin E3 complex in HER2-positive breast cancer cells [abstract]. In: Proceedings of the 2021 San Antonio Breast Cancer Symposium; 2021 Dec 7-10; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2022;82(4 Suppl):Abstract nr P5-10-02.
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Affiliation(s)
- Kanako Nishiyama
- Department of Breast Center, Ehime University Hospital, Touon, Japan
| | - Masashi Maekawa
- Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Touon, Japan
| | - Akari Murakami
- Department of Breast Center, Ehime University Hospital, Touon, Japan
| | - Kaho Utsunomiya
- Department of Breast Center, Ehime University Hospital, Touon, Japan
| | - Kana Takemoto
- Department of Breast Center, Ehime University Hospital, Touon, Japan
| | - Erina Kusakabe
- Department of Breast Center, Ehime University Hospital, Touon, Japan
| | - Haruna Noda
- Department of Breast Center, Ehime University Hospital, Touon, Japan
| | - Reina Aoki
- Department of Breast Center, Ehime University Hospital, Touon, Japan
| | - Kana Taguchi
- Department of Breast Center, Ehime University Hospital, Touon, Japan
| | - Michiko Yamashita
- Department of Breast Center, Ehime University Hospital, Touon, Japan
| | - Tomoya Nakagita
- Division of Proteo-Drug-Discovery Sciences, Proteo-Science Center, Ehime University, Matsuyama, Japan
| | - Jun Nakayama
- Division of Cellular Signaling, National Cancer Center Research Institute, Tokyo, Japan
| | - Mami Chosei
- Division of Cell Growth and Tumor Regulation, Proteo-Science Center, Ehime University, Touon, Japan
| | - Takeshi Kiyoi
- Division of Analytical Bio-medicine, Advanced Research Support Center, Ehime University, Touon, Japan
| | - Yoshiaki Kamei
- Department of Breast Center, Ehime University Hospital, Touon, Japan
| | - Hiroyuki Takeda
- Division of Proteo-Drug-Discovery Sciences, Proteo-Science Center, Ehime University, Touon, Japan
| | - Yasutsugu Takada
- Department of Hepato-Biliary-Pancreatic Surgery and Breast Surgery, Ehime University Graduate School of Medicine, Touon, Japan
| | - Shigeki Higashiyama
- Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Touon, Japan
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13
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Namiguchi K, Sakaue T, Okazaki M, Kanno K, Komoda Y, Shikata F, Kurata M, Ota N, Kubota Y, Kurobe H, Nishimura T, Masumoto J, Higashiyama S, Izutani H. Unique Angiogenesis From Cardiac Arterioles During Pericardial Adhesion Formation. Front Cardiovasc Med 2022; 8:761591. [PMID: 35187100 PMCID: PMC8852280 DOI: 10.3389/fcvm.2021.761591] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Accepted: 12/22/2021] [Indexed: 11/22/2022] Open
Abstract
Objectives The molecular mechanisms underlying post-operative pericardial adhesions remain poorly understood. We aimed to unveil the temporal molecular and cellular mechanisms underlying tissue dynamics during adhesion formation, including inflammation, angiogenesis, and fibrosis. Methods and Results We visualized cell-based tissue dynamics during pericardial adhesion using histological evaluations. To determine the molecular mechanism, RNA-seq was performed. Chemical inhibitors were administered to confirm the molecular mechanism underlying adhesion formation. A high degree of adhesion formation was observed during the stages in which collagen production was promoted. Histological analyses showed that arterioles excessively sprouted from pericardial tissues after the accumulation of neutrophils on the heart surface in mice as well as humans. The combination of RNA-seq and histological analyses revealed that hyperproliferative endothelial and smooth muscle cells with dedifferentiation appeared in cytokine-exposed sprouting vessels and adhesion tissue but not in quiescent vessels in the heart. SMAD2/3 and ERK activation was observed in sprouting vessels. The simultaneous abrogation of PI3K/ERK or TGF-β/MMP9 signaling significantly decreased angiogenic sprouting, followed by inhibition of adhesion formation. Depleting MMP9-positive neutrophils shortened mice survival and decreased angiogenic sprouting and fibrosis in the adhesion. Our data suggest that TGF-β/matrix metalloproteinase-dependent tissue remodeling and PI3K/ERK signaling activation might contribute to unique angiogenesis with dedifferentiation of vascular smooth muscle cells from the contractile to the synthetic phenotype for fibrosis in the pericardial cavity. Conclusions Our findings provide new insights in developing prevention strategies for pericardial adhesions by targeting the recruitment of vascular cells from heart tissues.
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Affiliation(s)
- Kenji Namiguchi
- Department of Cardiovascular and Thoracic Surgery, Ehime University Graduate School of Medicine, Toon, Japan
| | - Tomohisa Sakaue
- Department of Cardiovascular and Thoracic Surgery, Ehime University Graduate School of Medicine, Toon, Japan
- Department of Cell Growth and Tumor Regulation, Proteo-Science Center, Toon, Japan
- *Correspondence: Tomohisa Sakaue
| | - Mikio Okazaki
- Department of General Thoracic Surgery, Okayama University Graduate School of Medicine, Okayama, Japan
| | - Kaho Kanno
- Department of Cardiovascular and Thoracic Surgery, Ehime University Graduate School of Medicine, Toon, Japan
| | - Yuhei Komoda
- Department of Cardiovascular and Thoracic Surgery, Ehime University Graduate School of Medicine, Toon, Japan
| | - Fumiaki Shikata
- Department of Cardiovascular and Thoracic Surgery, Ehime University Graduate School of Medicine, Toon, Japan
| | - Mie Kurata
- Department of Pathology, Division of Analytical Pathology, Ehime University Graduate School of Medicine, Toon, Japan
- Department of Pathology, Proteo-Science Center, Toon, Japan
| | - Noritaka Ota
- Department of Cardiovascular and Thoracic Surgery, Ehime University Graduate School of Medicine, Toon, Japan
| | - Yoshiaki Kubota
- Department of Anatomy, Keio University School of Medicine, Tokyo, Japan
| | - Hirotsugu Kurobe
- Department of Cardiovascular and Thoracic Surgery, Ehime University Graduate School of Medicine, Toon, Japan
| | - Takashi Nishimura
- Department of Cardiovascular and Thoracic Surgery, Ehime University Graduate School of Medicine, Toon, Japan
| | - Junya Masumoto
- Department of Pathology, Division of Analytical Pathology, Ehime University Graduate School of Medicine, Toon, Japan
- Department of Pathology, Proteo-Science Center, Toon, Japan
| | - Shigeki Higashiyama
- Department of Cell Growth and Tumor Regulation, Proteo-Science Center, Toon, Japan
- Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Toon, Japan
- Department of Molecular and Cellular Biology, Research Center, Osaka International Cancer Institute, Osaka, Japan
| | - Hironori Izutani
- Department of Cardiovascular and Thoracic Surgery, Ehime University Graduate School of Medicine, Toon, Japan
- Hironori Izutani
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14
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Watanabe R, Maekawa M, Kiyoi T, Kurata M, Miura N, Kikugawa T, Higashiyama S, Saika T. PSMA-positive membranes secreted from prostate cancer cells have potency to transform vascular endothelial cells into an angiogenic state. Prostate 2021; 81:1390-1401. [PMID: 34516672 PMCID: PMC9292811 DOI: 10.1002/pros.24237] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 08/19/2021] [Accepted: 08/30/2021] [Indexed: 01/05/2023]
Abstract
BACKGROUND Prostate-specific membrane antigen (PSMA) is highly expressed in poorly differentiated, metastatic, and castration-resistant prostate cancers. Recently, 68Ga-PSMA positron emission tomography/computed tomography has been successfully developed as an effective diagnostic tool for prostate cancer. However, the pathophysiological functions of PSMA in prostate tumors remain unclear. METHODS We examined the protein expression of PSMA in tumor endothelial cells in human prostate tumors by immunohistochemistry. Prostate cancer tissues were resected by robotic surgery in 2019 at Ehime University from patients with prostate cancer. In vitro, we prepared conditioned medium (CM) derived from a PSMA-positive human prostate cancer cell line, LNCaP, cultured on collagen I gels. We then examined PSMA expression in human umbilical vascular endothelial cells (HUVECs) cultured with the CM. We assessed angiogenic activities by treatment of HUVECs with LNCaP-derived CM using a tube formation assay that mimics angiogenesis. RESULTS Immunohistochemistry of PSMA and CD31, a marker of endothelial cells, and PSMA-expressing tumor endothelial cells were observed in 4 of 33 prostate cancer patients (12.1%). We also found that the 10,000g pellet fraction of the LNCaP-derived CM containing PSMA-positive membranes, such as microvesicles transformed HUVECs "PSMA-negative" into "PSMA-positive." Furthermore, treatment of HUVECs with the 10,000g pellet fraction of the LNCaP-derived CM significantly promoted tube formation, mimicking angiogenesis in a PSMA-dependent manner. CONCLUSIONS Our findings revealed the existence of PSMA-positive tumor endothelial cells in human prostate tumors, which enhances tumor angiogenesis in prostate cancer tissues.
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Affiliation(s)
- Ryuta Watanabe
- Department of UrologyEhime University Graduate School of MedicineMatsuyamaEhimeJapan
- Department of Biochemistry and Molecular GeneticsEhime University Graduate School of MedicineMatsuyamaEhimeJapan
| | - Masashi Maekawa
- Department of Biochemistry and Molecular GeneticsEhime University Graduate School of MedicineMatsuyamaEhimeJapan
- Division of Cell Growth and Tumor Regulation, Proteo‐Science CenterEhime UniversityMatsuyamaEhimeJapan
| | - Takeshi Kiyoi
- Division of Analytical Bio‐medicine, Advanced Research Support CenterEhime UniversityEhimeJapan
| | - Mie Kurata
- Department of PathologyEhime University Graduate School of Medicine and Proteo‐Science CenterEhimeJapan
| | - Noriyoshi Miura
- Department of UrologyEhime University Graduate School of MedicineMatsuyamaEhimeJapan
| | - Tadahiko Kikugawa
- Department of UrologyEhime University Graduate School of MedicineMatsuyamaEhimeJapan
| | - Shigeki Higashiyama
- Department of Biochemistry and Molecular GeneticsEhime University Graduate School of MedicineMatsuyamaEhimeJapan
- Division of Cell Growth and Tumor Regulation, Proteo‐Science CenterEhime UniversityMatsuyamaEhimeJapan
- Department of Molecular and Cellular BiologyOsaka International Cancer InstituteOsakaJapan
| | - Takashi Saika
- Department of UrologyEhime University Graduate School of MedicineMatsuyamaEhimeJapan
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15
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Nagasawa T, Horitani M, Kawaguchi SI, Higashiyama S, Hama Y, Mitsutake S. The molecular mechanism of phytosphingosine binding to FFAR4/GPR120 differs from that of other fatty acids. FEBS Open Bio 2021; 11:3081-3089. [PMID: 34535977 PMCID: PMC8564095 DOI: 10.1002/2211-5463.13301] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 09/14/2021] [Accepted: 09/16/2021] [Indexed: 12/21/2022] Open
Abstract
Free fatty acid receptor 4 (FFAR4)/GPR120 comprises a receptor for medium‐ and long‐chain fatty acids. We previously identified phytosphingosine (PHS) as a novel ligand of FFAR4. Although many natural FFAR4 ligands have carboxyl groups, PHS does not, thus suggesting that binding to FFAR4 is driven by a completely different mechanism than other natural ligands such as α‐linolenic acid (ALA). To test this hypothesis, we performed docking simulation analysis using a FFAR4 homology model based on a protein model derived from the crystal structure of activated turkey beta‐1 adrenoceptor. The docking simulation revealed that the probable hydrogen bonds to FFAR4 differ between various ligands. In particular, binding was predicted between R264 of the FFAR4 and the oxygen of the carboxylate group in ALA, as well as between E249 of the FFAR4 and the oxygen of the hydroxy group at the C4‐position in PHS. Alanine substitution at E249 (E249A) dramatically reduced PHS‐induced FFAR4 activation but demonstrated a weaker effect on ALA‐induced FFAR4 activation. Kinetic analysis and Km values clearly demonstrated that the E249A substitution resulted in reduced affinity for PHS but not for ALA. Additionally, we observed that sphingosine, lacking a hydroxyl group at C4‐position, could not activate FFAR4. Our data show that E249 of the FFAR4 receptor is crucial for binding to the hydroxy group at the C4‐position in PHS, and this is a completely different molecular mechanism of binding from ALA. Because GPR120 agonists have attracted attention as treatments for type 2 diabetes, our findings may provide new insights into their development.
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Affiliation(s)
- Tomotaka Nagasawa
- The United Graduate School of Agricultural Sciences, Kagoshima University, Kagoshima, Japan
| | - Masaki Horitani
- The United Graduate School of Agricultural Sciences, Kagoshima University, Kagoshima, Japan.,Department of Applied Biochemistry and Food Science, Faculty of Agriculture, Saga University, Saga, Japan
| | - Shin-Ichi Kawaguchi
- The United Graduate School of Agricultural Sciences, Kagoshima University, Kagoshima, Japan.,Center for Education and Research in Agricultural Innovation, Faculty of Agriculture, Saga University, Saga, Japan
| | - Shigeki Higashiyama
- Division of Cell Growth and Tumor Regulation, Proteo-Science Center, Ehime University, Matsuyama, Japan.,Department of Molecular and Cellular Biology, Osaka International Cancer Institute, Osaka, Japan
| | - Yoichiro Hama
- The United Graduate School of Agricultural Sciences, Kagoshima University, Kagoshima, Japan.,Department of Applied Biochemistry and Food Science, Faculty of Agriculture, Saga University, Saga, Japan
| | - Susumu Mitsutake
- The United Graduate School of Agricultural Sciences, Kagoshima University, Kagoshima, Japan.,Department of Applied Biochemistry and Food Science, Faculty of Agriculture, Saga University, Saga, Japan
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16
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Nishiyama K, Maekawa M, Nakagita T, Nakayama J, Kiyoi T, Chosei M, Murakami A, Kamei Y, Takeda H, Takada Y, Higashiyama S. CNKSR1 serves as a scaffold to activate an EGFR phosphatase via exclusive interaction with RhoB-GTP. Life Sci Alliance 2021; 4:4/9/e202101095. [PMID: 34187934 PMCID: PMC8321701 DOI: 10.26508/lsa.202101095] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 06/17/2021] [Accepted: 06/21/2021] [Indexed: 12/15/2022] Open
Abstract
CNKSR1 functions as a scaffold protein for activation of an EGFR phosphatase, PTPRH, at the plasma membrane through the exclusive interaction with RhoB-GTP which is constitutively degraded by the CUL3/KCTD10 E3 complex. Epidermal growth factor receptor (EGFR) and human EGFR 2 (HER2) phosphorylation drives HER2-positive breast cancer cell proliferation. Enforced activation of phosphatases for those receptors could be a therapeutic option for HER2-positive breast cancers. Here, we report that degradation of an endosomal small GTPase, RhoB, by the ubiquitin ligase complex cullin-3 (CUL3)/KCTD10 is essential for both EGFR and HER2 phosphorylation in HER2-positive breast cancer cells. Using human protein arrays produced in a wheat cell-free protein synthesis system, RhoB-GTP, and protein tyrosine phosphatase receptor type H (PTPRH) were identified as interacting proteins of connector enhancer of kinase suppressor of Ras1 (CNKSR1). Mechanistically, constitutive degradation of RhoB, which is mediated by the CUL3/KCTD10 E3 complex, enabled CNKSR1 to interact with PTPRH at the plasma membrane resulting in inactivation of EGFR phosphatase activity. Depletion of CUL3 or KCTD10 led to the accumulation of RhoB-GTP at the plasma membrane followed by its interaction with CNKSR1, which released activated PTPRH from CNKSR1. This study suggests a mechanism of PTPRH activation through the exclusive binding of RhoB-GTP to CNKSR1.
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Affiliation(s)
- Kanako Nishiyama
- Department of Hepato-Biliary-Pancreatic Surgery and Breast Surgery, Ehime University Graduate School of Medicine, Toon, Japan.,Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Toon, Japan
| | - Masashi Maekawa
- Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Toon, Japan .,Division of Cell Growth and Tumor Regulation, Proteo-Science Center, Ehime University, Toon, Japan
| | - Tomoya Nakagita
- Division of Proteo-Drug-Discovery Sciences, Proteo-Science Center, Ehime University, Matsuyama, Japan
| | - Jun Nakayama
- Division of Cellular Signaling, National Cancer Center Research Institute, Chuo-ku, Japan
| | - Takeshi Kiyoi
- Division of Analytical Bio-medicine, Advanced Research Support Center, Ehime University, Toon, Japan
| | - Mami Chosei
- Division of Cell Growth and Tumor Regulation, Proteo-Science Center, Ehime University, Toon, Japan
| | - Akari Murakami
- Department of Hepato-Biliary-Pancreatic Surgery and Breast Surgery, Ehime University Graduate School of Medicine, Toon, Japan
| | - Yoshiaki Kamei
- Department of Hepato-Biliary-Pancreatic Surgery and Breast Surgery, Ehime University Graduate School of Medicine, Toon, Japan
| | - Hiroyuki Takeda
- Division of Proteo-Drug-Discovery Sciences, Proteo-Science Center, Ehime University, Matsuyama, Japan
| | - Yasutsugu Takada
- Department of Hepato-Biliary-Pancreatic Surgery and Breast Surgery, Ehime University Graduate School of Medicine, Toon, Japan
| | - Shigeki Higashiyama
- Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Toon, Japan .,Division of Cell Growth and Tumor Regulation, Proteo-Science Center, Ehime University, Toon, Japan.,Department of Molecular and Cellular Biology, Osaka International Cancer Institute, Chuo-ku, Osaka, Japan
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17
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Suzuki T, Terada N, Higashiyama S, Kametani K, Shirai Y, Honda M, Kai T, Li W, Tabuchi K. Non-microtubule tubulin-based backbone and subordinate components of postsynaptic density lattices. Life Sci Alliance 2021; 4:4/7/e202000945. [PMID: 34006534 PMCID: PMC8326785 DOI: 10.26508/lsa.202000945] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 04/19/2021] [Accepted: 04/26/2021] [Indexed: 12/28/2022] Open
Abstract
This study proposes a postsynaptic density (PSD) lattice model comprising a non-microtubule tubulin-based backbone structure and its associated proteins, including various PSD scaffold/adaptor proteins and other PSD proteins. A purification protocol was developed to identify and analyze the component proteins of a postsynaptic density (PSD) lattice, a core structure of the PSD of excitatory synapses in the central nervous system. “Enriched”- and “lean”-type PSD lattices were purified by synaptic plasma membrane treatment to identify the protein components by comprehensive shotgun mass spectrometry and group them into minimum essential cytoskeleton (MEC) and non-MEC components. Tubulin was found to be a major component of the MEC, with non-microtubule tubulin widely distributed on the purified PSD lattice. The presence of tubulin in and around PSDs was verified by post-embedding immunogold labeling EM of cerebral cortex. Non-MEC proteins included various typical scaffold/adaptor PSD proteins and other class PSD proteins. Thus, this study provides a new PSD lattice model consisting of non-microtubule tubulin-based backbone and various non-MEC proteins. Our findings suggest that tubulin is a key component constructing the backbone and that the associated components are essential for the versatile functions of the PSD.
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Affiliation(s)
- Tatsuo Suzuki
- Department of Molecular and Cellular Physiology, Shinshu University Academic Assembly, Institute of Medicine, Shinshu University Academic Assembly, Matsumoto, Japan
| | - Nobuo Terada
- Health Science Division, Department of Medical Sciences, Graduate School of Medicine, Science and Technology, Shinshu University, Matsumoto, Nagano, Japan
| | - Shigeki Higashiyama
- Department of Cell Growth and Tumor Regulation, Proteo-Science Center, Ehime University, To-on, Ehime, Japan
| | - Kiyokazu Kametani
- Department of Veterinary Anatomy, Faculty of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Japan
| | - Yoshinori Shirai
- Department of Molecular and Cellular Physiology, Shinshu University Academic Assembly, Institute of Medicine, Shinshu University Academic Assembly, Matsumoto, Japan
| | - Mamoru Honda
- Bioscience Group, Center for Precision Medicine Supports, Pharmaceuticals and Life Sciences Division, Shimadzu Techno-Research, INC, Kyoto, Japan
| | - Tsutomu Kai
- Bioscience Group, Center for Precision Medicine Supports, Pharmaceuticals and Life Sciences Division, Shimadzu Techno-Research, INC, Kyoto, Japan
| | - Weidong Li
- Bio-X Institutes, Key Laboratory for the Genetics of Development and Neuropsychiatric Disorders (Ministry of Education), Shanghai Key Laboratory of Psychotic Disorders, and Brain Science and Technology Research Center, Shanghai Jiao Tong University, Shanghai, China.,Institute for Biomedical Sciences, Interdisciplinary Cluster for Cutting Edge Research Shinshu University, Matsumoto, Japan
| | - Katsuhiko Tabuchi
- Department of Molecular and Cellular Physiology, Shinshu University Academic Assembly, Institute of Medicine, Shinshu University Academic Assembly, Matsumoto, Japan.,Department of Biological Sciences for Intractable Neurological Diseases, Institute for Biomedical Sciences, Interdisciplinary Cluster for Cutting Edge Research Shinshu University, Matsumoto, Japan
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18
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Tanaka M, Nakamura S, Maekawa M, Higashiyama S, Hara H. ANKFY1 is essential for retinal endothelial cell proliferation and migration via VEGFR2/Akt/eNOS pathway. Biochem Biophys Res Commun 2020; 533:1406-1412. [PMID: 33092793 DOI: 10.1016/j.bbrc.2020.10.032] [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] [Received: 10/13/2020] [Accepted: 10/14/2020] [Indexed: 11/24/2022]
Abstract
Dysregulation of endothelial cell proliferation and migration are hallmarks of angiogenic diseases. Among them, excessive ocular angiogenesis is a major cause of blindness. Vascular endothelial growth factor (VEGF)-VEGF receptor 2 (VEGFR2) signaling plays crucial roles in angiogenesis, endothelial cell proliferation and migration. Here, we showed that ankyrin repeat and FYVE domain containing 1 (ANKFY1), a Rab5-GTP-interacting protein, is required for retinal endothelial cell proliferation and migration. ANKFY1 knockdown significantly suppressed cell growth of human retinal microvascular endothelial cells (HRMECs) in the presence or absence of VEGF. HRMEC migration was also inhibited by depletion of ANKFY1. Western blot analysis showed that ANKFY1 knockdown reduced cell surface VEGFR2 level. In contrast, qRT-PCR analysis indicated that ANKFY1 knockdown had no effect on VEGFR2 mRNA levels. We also found that the attenuation of the protein kinase B/endothelial nitric oxide synthase (Akt/eNOS) pathway in ANKFY1 knockdown HRMECs. In conclusion, our findings revealed novel functions of ANKFY1 in cell growth and migration of retinal endothelial cells.
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Affiliation(s)
- Miruto Tanaka
- Molecular Pharmacology, Department of Biofunctional Evaluation, Gifu Pharmaceutical University, Gifu, Japan
| | - Shinsuke Nakamura
- Molecular Pharmacology, Department of Biofunctional Evaluation, Gifu Pharmaceutical University, Gifu, Japan
| | - Masashi Maekawa
- Division of Cell Growth and Tumor Regulation, Proteo-Science Center, Ehime University, Matsuyama, 791-0295, Japan; Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Matsuyama, 791-0295, Japan
| | - Shigeki Higashiyama
- Division of Cell Growth and Tumor Regulation, Proteo-Science Center, Ehime University, Matsuyama, 791-0295, Japan; Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Matsuyama, 791-0295, Japan
| | - Hideaki Hara
- Molecular Pharmacology, Department of Biofunctional Evaluation, Gifu Pharmaceutical University, Gifu, Japan.
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19
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Tezuka-Kagajo M, Maekawa M, Ogawa A, Hatta Y, Ishii E, Eguchi M, Higashiyama S. Development of Human CBF1-Targeting Single-Stranded DNA Aptamers with Antiangiogenic Activity In Vitro. Nucleic Acid Ther 2020; 30:365-378. [DOI: 10.1089/nat.2020.0875] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Affiliation(s)
- Mari Tezuka-Kagajo
- Department of Biochemistry and Molecular Genetics and Ehime University Graduate School of Medicine, Toon, Japan
- Department of Pediatrics, Ehime University Graduate School of Medicine, Toon, Japan
| | - Masashi Maekawa
- Department of Biochemistry and Molecular Genetics and Ehime University Graduate School of Medicine, Toon, Japan
- Division of Cell Growth and Tumor Regulation, Proteo-Science Center, Ehime University, Toon, Japan
| | - Atsushi Ogawa
- Division of Biomolecular Engineering, Proteo-Science Center, Ehime University, Matsuyama, Japan
| | - Yoshiko Hatta
- Division of Biomolecular Engineering, Proteo-Science Center, Ehime University, Matsuyama, Japan
| | - Eiichi Ishii
- Department of Pediatrics, Ehime University Graduate School of Medicine, Toon, Japan
| | - Mariko Eguchi
- Department of Pediatrics, Ehime University Graduate School of Medicine, Toon, Japan
| | - Shigeki Higashiyama
- Department of Biochemistry and Molecular Genetics and Ehime University Graduate School of Medicine, Toon, Japan
- Division of Cell Growth and Tumor Regulation, Proteo-Science Center, Ehime University, Toon, Japan
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20
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Nagasawa T, Ishimaru K, Higashiyama S, Hama Y, Mitsutake S. Teadenol A in microbial fermented tea acts as a novel ligand on GPR120 to increase GLP-1 secretion. Food Funct 2020; 11:10534-10541. [PMID: 33185223 DOI: 10.1039/d0fo02442b] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Post-fermented teas, produced by microbial fermentation, are attracting attention due to their health benefits that reduce the risk of hyperlipidemia and atherosclerosis. Although several novel polyphenols have been identified from post-fermented teas, their biological activities have not yet been fully elucidated. In this study, we found that teadenol A, a polyphenol recently isolated from Japanese post-fermented tea, acts as a novel ligand on a long-chain fatty acid receptor, GPR120. Teadenol A activated GPR120 was over-expressed in 293T cells, and this activation was inhibited by the GPR120 antagonist AH7614. Additionally, teadenol A induced Erk1/2 phosphorylation and increased the intracellular Ca2+ concentration in 293T cells, and these effects were completely dependent on GPR120 expression. Our results suggest that teadenol A binds and activates GPR120 directly. Furthermore, teadenol A enhanced the secretion of GLP-1 from intestinal endocrine STC-1 cells. GLP-1 suppresses appetite and increases insulin secretion, exhibiting anti-diabetic effects. GPR120/GLP-1 signaling is attracting attention as a potential target for pharmaceuticals against type 2 diabetes. Our results suggest that teadenol A is a key molecule in post-fermented tea responsible for beneficial effects on metabolic syndrome.
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Affiliation(s)
- Tomotaka Nagasawa
- The United Graduate School of Agricultural Sciences, Kagoshima University, Kagoshima, Japan
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21
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Maekawa M, Higashiyama S. The Roles of SPOP in DNA Damage Response and DNA Replication. Int J Mol Sci 2020; 21:ijms21197293. [PMID: 33023230 PMCID: PMC7582541 DOI: 10.3390/ijms21197293] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Revised: 09/30/2020] [Accepted: 09/30/2020] [Indexed: 12/20/2022] Open
Abstract
Speckle-type BTB/POZ protein (SPOP) is a substrate recognition receptor of the cullin-3 (CUL3)/RING type ubiquitin E3 complex. To date, approximately 30 proteins have been identified as ubiquitinated substrates of the CUL3/SPOP complex. Pathologically, missense mutations in the substrate-binding domain of SPOP have been found in prostate and endometrial cancers. Prostate and endometrial cancer-associated SPOP mutations lose and increase substrate-binding ability, respectively. Expression of these SPOP mutants, thus, causes aberrant turnovers of the substrate proteins, leading to tumor formation. Although the molecular properties of SPOP and its cancer-associated mutants have been intensively elucidated, their cellular functions remain unclear. Recently, a number of studies have uncovered the critical role of SPOP and its mutants in DNA damage response and DNA replication. In this review article, we summarize the physiological functions of SPOP as a “gatekeeper” of genome stability.
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Affiliation(s)
- Masashi Maekawa
- Division of Cell Growth and Tumor Regulation, Proteo-Science Center, Ehime University, Toon 791-0295, Japan;
- Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Toon 791-0295, Japan
- Correspondence: ; Tel.: +81-89-960-5254
| | - Shigeki Higashiyama
- Division of Cell Growth and Tumor Regulation, Proteo-Science Center, Ehime University, Toon 791-0295, Japan;
- Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Toon 791-0295, Japan
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22
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Okitsu-Sakurayama S, Higa-Nakamine S, Torihara H, Higashiyama S, Yamamoto H. Roles of Pyk2 in signal transduction after gonadotropin-releasing hormone receptor stimulation. J Cell Physiol 2020; 236:3033-3043. [PMID: 32984962 DOI: 10.1002/jcp.30077] [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: 06/15/2020] [Revised: 09/03/2020] [Accepted: 09/08/2020] [Indexed: 12/13/2022]
Abstract
The receptor for gonadotropin-releasing hormone (GnRH) is highly expressed in hypothalamic neurons. It has been reported that GnRH treatment of cultured GnRH neurons (GT1-7 cells) activated proline-rich tyrosine kinase 2 (Pyk2), and Pyk2 was involved in the activation of extracellular signal-regulated protein kinase 1 (ERK1) and ERK2 (ERK1/2). In the present study, we first examined the possibility that GnRH treatment might activate epidermal growth factor receptor (EGFR). We found that activation of EGFR after GnRH treatment for 5 min was much less than after EGF or heparin-binding EGF treatment. Next, we examined whether or not Pyk2 bound to growth factor receptor-binding protein 2 (Grb2). We overexpressed FLAG-fused Pyk2 in GT1-7 cells, and immunoprecipitated Pyk2 using an anti-FLAG antibody. The binding of Pyk2 to Grb2 was detected only after GnRH treatment. In contrast, a site-directed mutant of Pyk2 wherein tyrosine 881 was mutated to phenylalanine did not bind to Grb2. Studies with small interfering RNA and inhibitors indicated that the activation of Grb2/Ras/Raf/MEK was a major pathway to ERK1/2 activation after the short-term treatment of GT1-7 cells with GnRH.
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Affiliation(s)
- Shiho Okitsu-Sakurayama
- Department of Biochemistry, Graduate School of Medicine, University of the Ryukyus, Okinawa, Japan
| | | | - Hidetsugu Torihara
- Department of Biochemistry, Graduate School of Medicine, University of the Ryukyus, Okinawa, Japan
| | - Shigeki Higashiyama
- Division of Cell Growth and Tumor Regulation, Department of Biochemistry and Molecular Genetics, Proteo-Science Center, Ehime University Graduate School of Medicine, Ehime University, Toon, Ehime, Japan
| | - Hideyuki Yamamoto
- Department of Biochemistry, Graduate School of Medicine, University of the Ryukyus, Okinawa, Japan
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23
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Muto J, Fukuda S, Shirakata Y, Tsuda T, Tan E, Dai X, Shiraishi K, Mori H, Murakami M, Higashiyama S, Sayama K. 796 Effect of novel disaccharide for construction of living skin equivalents. J Invest Dermatol 2020. [DOI: 10.1016/j.jid.2020.03.811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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24
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Maekawa M, Higashiyama S. KCTD10 Biology: An Adaptor for the Ubiquitin E3 Complex Meets Multiple Substrates: Emerging Divergent Roles of the cullin-3/KCTD10 E3 Ubiquitin Ligase Complex in Various Cell Lines. Bioessays 2020; 42:e1900256. [PMID: 32484264 DOI: 10.1002/bies.201900256] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2019] [Revised: 04/08/2020] [Indexed: 12/18/2022]
Abstract
Protein ubiquitination constitutes a post-translational modification mediated by ubiquitin ligases whereby ubiquitinated substrates are degraded through the proteasomal or lysosomal pathways, or acquire novel molecular functions according to their "ubiquitin codes." Dysfunction of the ubiquitination process in cells causes various diseases such as cancers along with neurodegenerative, auto-immune/inflammatory, and metabolic diseases. KCTD10 functions as a substrate recognition receptor for cullin-3 (CUL3), a scaffold protein in RING-type ubiquitin ligase complexes. Recently, studies by ourselves and others have identified new substrates that are ubiquitinated by the CUL3/KCTD10 ubiquitin ligase complex. Moreover, the type of polyubiquitination (e.g., K27-, K48-, or K63-chain) of various substrates (e.g., RhoB, CEP97, EIF3D, and TRIF) mediated by KCTD10 underlies its divergent roles in endothelial barrier formation, primary cilium formation, plasma membrane dynamics, cell proliferation, and immune response. Here, the physiological functions of KCTD10 are summarized and potential mechanisms are proposed.
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Affiliation(s)
- Masashi Maekawa
- Division of Cell Growth and Tumor Regulation, Proteo-Science Center, Ehime University, Shitsukawa, Toon, Ehime, 791-0295, Japan.,Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime, 791-0295, Japan
| | - Shigeki Higashiyama
- Division of Cell Growth and Tumor Regulation, Proteo-Science Center, Ehime University, Shitsukawa, Toon, Ehime, 791-0295, Japan.,Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime, 791-0295, Japan
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25
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Watanabe R, Maekawa M, Hieda M, Taguchi T, Miura N, Kikugawa T, Saika T, Higashiyama S. SPOP is essential for DNA-protein cross-link repair in prostate cancer cells: SPOP-dependent removal of topoisomerase 2A from the topoisomerase 2A-DNA cleavage complex. Mol Biol Cell 2020; 31:478-490. [PMID: 31967940 PMCID: PMC7185892 DOI: 10.1091/mbc.e19-08-0456] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
SPOP, speckle-type POZ protein is a substrate adaptor protein of the Cullin-3/RING ubiquitin E3 complex. The spop gene is the most commonly point mutated in human primary prostate cancers, but the pathological contribution of the SPOP mutations remains unclear. In this study, we investigated several known factors that are critical in the DNA–protein cross-link repair process. The depletion of SPOP or overexpression of a prostate cancer–associated SPOP mutant, F133V, in androgen receptor-positive prostate cancer cells increased the amount of topoisomerase 2A (TOP2A) in the nuclei together with the increased amount of γH2AX, an indication of DNA breaks. Tyrosyl–DNA phosphodiesterases (TDPs) and an endo/exonuclease MRE11 are enzymes that liberate TOP2A from the TOP2A–DNA cleavage complex, and thus is essential for the completion of the DNA repair process. We found that the amount of TDP1 and TDP2 was decreased in SPOP-depleted cells, and that of TDP2 and MRE11 was decreased in F133V-overexpressing cells. These results suggest that the F133V mutant exerts dominant-negative and gain-of-function effects in down-regulation of TDP2 and MRE11, respectively. We conclude that SPOP is involved in the DNA–protein cross-link repair process through the elimination of TOP2A from the TOP2A cleavage complex, which may contribute to the genome stability.
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Affiliation(s)
- Ryuta Watanabe
- Department of Urology, Ehime University, Shitsukawa, Toon, Ehime 791-0295, Japan.,Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Ehime University, Shitsukawa, Toon, Ehime 791-0295, Japan
| | - Masashi Maekawa
- Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Ehime University, Shitsukawa, Toon, Ehime 791-0295, Japan.,Division of Cell Growth and Tumor Regulation, Proteo-Science Center, Ehime University, Shitsukawa, Toon, Ehime 791-0295, Japan
| | - Miki Hieda
- Graduate School of Health Sciences, Ehime Prefectural University of Health Sciences, Takoda, Tobe-cho, Iyo-gun, Ehime 791-2101, Japan
| | - Tomohiko Taguchi
- Department of Integrative Life Sciences, Graduate School of Life Sciences, Tohoku University, Aoba-Ku, Sendai 980-8577, Japan
| | - Noriyoshi Miura
- Department of Urology, Ehime University, Shitsukawa, Toon, Ehime 791-0295, Japan
| | - Tadahiko Kikugawa
- Department of Urology, Ehime University, Shitsukawa, Toon, Ehime 791-0295, Japan
| | - Takashi Saika
- Department of Urology, Ehime University, Shitsukawa, Toon, Ehime 791-0295, Japan
| | - Shigeki Higashiyama
- Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Ehime University, Shitsukawa, Toon, Ehime 791-0295, Japan.,Division of Cell Growth and Tumor Regulation, Proteo-Science Center, Ehime University, Shitsukawa, Toon, Ehime 791-0295, Japan
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26
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Kinoshita K, Munesue T, Toki F, Isshiki M, Higashiyama S, Barrandon Y, Nishimura EK, Yanagihara Y, Nanba D. Automated collective motion analysis validates human keratinocyte stem cell cultures. Sci Rep 2019; 9:18725. [PMID: 31822757 PMCID: PMC6904747 DOI: 10.1038/s41598-019-55279-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Accepted: 11/26/2019] [Indexed: 01/03/2023] Open
Abstract
Identification and quality assurance of stem cells cultured in heterogeneous cell populations are indispensable for successful stem cell therapy. Here we present an image-processing pipeline for automated identification and quality assessment of human keratinocyte stem cells. When cultivated under appropriate conditions, human epidermal keratinocyte stem cells give rise to colonies and exhibit higher locomotive capacity as well as significant proliferative potential. Image processing and kernel density estimation were used to automatically extract the area of keratinocyte colonies from phase-contrast images of cultures containing feeder cells. The DeepFlow algorithm was then used to calculate locomotion speed of the colony area by analyzing serial images. This image-processing pipeline successfully identified keratinocyte stem cell colonies by measuring cell locomotion speed, and also assessed the effect of oligotrophic culture conditions and chemical inhibitors on keratinocyte behavior. Therefore, this study provides automated procedures for image-based quality control of stem cell cultures and high-throughput screening of small molecules targeting stem cells.
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Affiliation(s)
- Koji Kinoshita
- Graduate School of Science and Engineering, Ehime University, 3 Bunkyo-cho, Matsuyama, Ehime, 790-8577, Japan.
| | - Takuya Munesue
- Graduate School of Science and Engineering, Ehime University, 3 Bunkyo-cho, Matsuyama, Ehime, 790-8577, Japan
| | - Fujio Toki
- Department of Stem Cell Biology, Medical Research Institute, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
| | - Masaharu Isshiki
- Graduate School of Science and Engineering, Ehime University, 3 Bunkyo-cho, Matsuyama, Ehime, 790-8577, Japan
| | - Shigeki Higashiyama
- Division of Cell Growth and Tumor Regulation, Proteo-Science Center, Ehime University, Shitsukawa, Toon, Ehime, 791-0295, Japan.,Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Toon, Shitsukawa, Ehime, 791-0295, Japan
| | - Yann Barrandon
- Institute of Medical Biology, A*STAR, Duke-NUS Graduate Medical School, and Department of Plastic, Reconstructive and Aesthetic Surgery, Singapore General Hospital, Singapore
| | - Emi K Nishimura
- Department of Stem Cell Biology, Medical Research Institute, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
| | - Yoshio Yanagihara
- Graduate School of Science and Engineering, Ehime University, 3 Bunkyo-cho, Matsuyama, Ehime, 790-8577, Japan
| | - Daisuke Nanba
- Department of Stem Cell Biology, Medical Research Institute, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan.
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Sakaue T, Hamaguchi M, Aono J, Nakashiro KI, Shikata F, Kawakami N, Oshima Y, Kurata M, Nanba D, Masumoto J, Yamaguchi O, Higashiyama S, Izutani H. Valve Interstitial Cell-Specific Cyclooxygenase-1 Associated With Calcification of Aortic Valves. Ann Thorac Surg 2019; 110:40-49. [PMID: 31760051 DOI: 10.1016/j.athoracsur.2019.09.085] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Revised: 09/10/2019] [Accepted: 09/24/2019] [Indexed: 01/29/2023]
Abstract
BACKGROUND The molecular mechanisms underlying aortic valve calcification are poorly understood. Here, we aimed to identify the master regulators of calcification by comparison of genes in valve interstitial cells (VICs) with calcified and noncalcified aortic valves. METHODS Calcified aortic valves were surgically excised from patients with aortic valve stenosis who required aortic valve replacements. Noncalcified and calcified sections were obtained from aortic valve leaflets. Collagenase-digested tissues were seeded into dishes, and VICs adhering to the dishes were cultured for 3 weeks, followed by comprehensive gene expression analysis. Functional analyses of identified proteins were performed by in vitro calcification assays. Tissue localization was determined by immunohistochemical staining for normal (n = 11) and stenotic valves (n = 30). RESULTS We found 87 genes showing greater than a twofold change in calcified tissues. Among these genes, 68 were downregulated and 19 were upregulated. Cyclooxygenase-1 (COX1) messenger RNA and protein levels were upregulated in VICs from calcified tissues. The COX1 messenger RNA and protein levels in VICs were also strongly increased by stimulation with osteoblast differentiation medium. These were VIC-specific phenotypes and were not observed in other cell types. Immunohistochemical staining revealed that COX1-positive VICs were specifically localized in the calcified area of aortic valve tissues. CONCLUSIONS The VIC-specific COX1 overexpression played a crucial role in calcification by promoting osteoblast differentiation in aortic valve tissues.
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Affiliation(s)
- Tomohisa Sakaue
- Department of Cardiovascular and Thoracic Surgery, Ehime University Graduate School of Medicine, Ehime, Japan; Department of Cell Growth and Tumor Regulation, Proteo-Science Center, Ehime University, Ehime, Japan.
| | - Mika Hamaguchi
- Department of Cardiology, Pulmonology, Hypertension, and Nephrology, Ehime University Graduate School of Medicine, Ehime, Japan
| | - Jun Aono
- Department of Cardiology, Pulmonology, Hypertension, and Nephrology, Ehime University Graduate School of Medicine, Ehime, Japan
| | - Koh-Ichi Nakashiro
- Department of Oral and Maxillofacial Surgery, Ehime University Graduate School of Medicine, Ehime University, Ehime, Japan
| | - Fumiaki Shikata
- Department of Cardiovascular and Thoracic Surgery, Ehime University Graduate School of Medicine, Ehime, Japan; Queensland Pediatric Cardiac Service, Queensland Children's Hospital, South Brisbane, Queensland, Australia
| | - Natsuki Kawakami
- Department of Cardiovascular and Thoracic Surgery, Ehime University Graduate School of Medicine, Ehime, Japan
| | - Yusuke Oshima
- Biomedical Optics Laboratory, Graduate School of Biomedical Engineering Tohoku University, Aramaki Aza Aoba, Aoba-ku, Sendai, Miyagi, Japan; Department of Gastroenterological and Pediatric Surgery, Oita University Faculty of Medicine, Idaigaoka, Hasama-machi, Yufu City, Oita, Japan; Oral-Maxillofacial Surgery and Orthodontics, University of Tokyo Hospital, Bunkyo-ku, Tokyo, Japan
| | - Mie Kurata
- Department of Pathology, Division of Analytical Pathology, Ehime University Graduate School of Medicine, Ehime, Japan; Department of Pathology, Proteo-Science Center, Ehime University, Ehime, Japan
| | - Daisuke Nanba
- Department of Stem Cell Biology, Medical Research Institute, Tokyo Medical and Dental University, Tokyo, Japan
| | - Junya Masumoto
- Department of Pathology, Division of Analytical Pathology, Ehime University Graduate School of Medicine, Ehime, Japan; Department of Pathology, Proteo-Science Center, Ehime University, Ehime, Japan
| | - Osamu Yamaguchi
- Department of Cardiology, Pulmonology, Hypertension, and Nephrology, Ehime University Graduate School of Medicine, Ehime, Japan
| | - Shigeki Higashiyama
- Department of Cell Growth and Tumor Regulation, Proteo-Science Center, Ehime University, Ehime, Japan
| | - Hironori Izutani
- Department of Cardiovascular and Thoracic Surgery, Ehime University Graduate School of Medicine, Ehime, Japan
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28
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Uematsu A, Kido K, Takahashi H, Takahashi C, Yanagihara Y, Saeki N, Yoshida S, Maekawa M, Honda M, Kai T, Shimizu K, Higashiyama S, Imai Y, Tokunaga F, Sawasaki T. The E3 ubiquitin ligase MIB2 enhances inflammation by degrading the deubiquitinating enzyme CYLD. J Biol Chem 2019; 294:14135-14148. [PMID: 31366726 DOI: 10.1074/jbc.ra119.010119] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [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: 07/09/2019] [Indexed: 12/25/2022] Open
Abstract
The tumor suppressor CYLD is a deubiquitinating enzyme that suppresses polyubiquitin-dependent signaling pathways, including the proinflammatory and cell growth-promoting NF-κB pathway. Missense mutations in the CYLD gene are present in individuals with syndromes such as multiple familial trichoepithelioma (MFT), but the pathogenic roles of these mutations remain unclear. Recent studies have shown that CYLD interacts with a RING finger domain protein, mind bomb homologue 2 (MIB2), in the regulation of NOTCH signaling. However, whether MIB2 is an E3 ubiquitin ligase that acts on CYLD is unknown. Here, using the cell-free-based AlphaScreen and pulldown assays to detect protein-protein interactions, along with immunofluorescence assays and murine Mib2 knockout cells and animals, we demonstrate that MIB2 promotes proteasomal degradation of CYLD and enhances NF-κB signaling. Of note, arthritic inflammation was suppressed in Mib2-deficient mice. We further observed that the ankyrin repeat in MIB2 interacts with the third CAP domain in CYLD and that MIB2 catalyzes Lys-48-linked polyubiquitination of CYLD at Lys-338 and Lys-530. MIB2-dependent CYLD degradation activated NF-κB signaling via tumor necrosis factor alpha (TNFα) stimulation and the linear ubiquitination assembly complex (LUBAC). Mib2-knockout mice had reduced serum interleukin-6 (IL-6) and exhibited suppressed inflammatory responses in the K/BxN serum-transfer arthritis model. Interestingly, MIB2 significantly enhanced the degradation of a CYLDP904L variant identified in an individual with MFT, although the molecular pathogenesis of the disease was not clarified here. Together, these results suggest that MIB2 enhances NF-κB signaling in inflammation by promoting the ubiquitin-dependent degradation of CYLD.
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Affiliation(s)
- Atsushi Uematsu
- Division of Cell-Free Sciences, Proteo-Science Center (PROS), 3 Bunkyo-cho, Matsuyama, Ehime 790-8577, Japan
| | - Kohki Kido
- Division of Cell-Free Sciences, Proteo-Science Center (PROS), 3 Bunkyo-cho, Matsuyama, Ehime 790-8577, Japan
| | - Hirotaka Takahashi
- Division of Cell-Free Sciences, Proteo-Science Center (PROS), 3 Bunkyo-cho, Matsuyama, Ehime 790-8577, Japan
| | - Chikako Takahashi
- Division of Cell-Free Sciences, Proteo-Science Center (PROS), 3 Bunkyo-cho, Matsuyama, Ehime 790-8577, Japan
| | - Yuta Yanagihara
- Division of Integrative Pathophysiology, PROS, 3 Bunkyo-cho, Matsuyama, Ehime 790-8577, Japan
| | - Noritaka Saeki
- Division of Integrative Pathophysiology, PROS, 3 Bunkyo-cho, Matsuyama, Ehime 790-8577, Japan
| | - Shuhei Yoshida
- Division of Integrative Pathophysiology, PROS, 3 Bunkyo-cho, Matsuyama, Ehime 790-8577, Japan
| | - Masashi Maekawa
- Division of Cell Growth and Tumor Regulation, PROS, 3 Bunkyo-cho, Matsuyama, Ehime 790-8577.,Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime 791-0295, Japan
| | - Mamoru Honda
- Pharmaceuticals and Life Sciences Division, Shimadzu Techno-Research, Inc., Nishinokyo-Shimoaicho, Nakagyo-ku, Kyoto 604-8436, Japan
| | - Tsutomu Kai
- Pharmaceuticals and Life Sciences Division, Shimadzu Techno-Research, Inc., Nishinokyo-Shimoaicho, Nakagyo-ku, Kyoto 604-8436, Japan
| | - Kouhei Shimizu
- Division of Cell-Free Sciences, Proteo-Science Center (PROS), 3 Bunkyo-cho, Matsuyama, Ehime 790-8577, Japan
| | - Shigeki Higashiyama
- Division of Cell Growth and Tumor Regulation, PROS, 3 Bunkyo-cho, Matsuyama, Ehime 790-8577.,Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime 791-0295, Japan
| | - Yuuki Imai
- Division of Integrative Pathophysiology, PROS, 3 Bunkyo-cho, Matsuyama, Ehime 790-8577, Japan
| | - Fuminori Tokunaga
- Department of Pathobiochemistry, Graduate School of Medicine, Osaka City University, 1-4-3 Asahi-machi, Abeno-ku, Osaka 545-8585, Japan
| | - Tatsuya Sawasaki
- Division of Cell-Free Sciences, Proteo-Science Center (PROS), 3 Bunkyo-cho, Matsuyama, Ehime 790-8577, Japan
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29
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Maekawa M, Hiyoshi H, Nakayama J, Kido K, Sawasaki T, Semba K, Kubota E, Joh T, Higashiyama S. Cullin-3/KCTD10 complex is essential for K27-polyubiquitination of EIF3D in human hepatocellular carcinoma HepG2 cells. Biochem Biophys Res Commun 2019; 516:1116-1122. [PMID: 31280863 DOI: 10.1016/j.bbrc.2019.07.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [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: 06/21/2019] [Accepted: 07/02/2019] [Indexed: 12/17/2022]
Abstract
Eukaryotic translation initiation factor 3 subunit D (EIF3D) binds to the 5'-cap of specific mRNAs, initiating their translation into polypeptides. From a pathological standpoint, EIF3D has been observed to be essential for cell growth in various cancer types, and cancer patients with high EIF3D mRNA levels exhibit poor prognosis, indicating involvement of EIF3D in oncogenesis. In this study, we found, by mass spectrometry, that Cullin-3 (CUL3)/KCTD10 ubiquitin (Ub) ligase forms a complex with EIF3D. We also demonstrated that EIF3D is K27-polyubiquitinated at the lysine 153 and 275 residues in a KCTD10-dependent manner in human hepatocellular carcinoma HepG2 cells. Similar to other cancers, high expression of EIF3D significantly correlated with poor prognosis in hepatocellular carcinoma patients, and depletion of EIF3D drastically suppressed HepG2 cell proliferation. These results indicate that EIF3D is a novel substrate of CUL3/KCTD10 Ub ligase and suggest involvement of K27-polyubiquitinated EIF3D in the development of hepatocellular carcinoma.
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Affiliation(s)
- Masashi Maekawa
- Division of Cell Growth and Tumor Regulation, Proteo-Science Center, Ehime University, Shitsukawa, Toon, Ehime, 791-0295, Japan; Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime, 791-0295, Japan.
| | - Hiromi Hiyoshi
- Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya, Aichi, 467-8601, Japan
| | - Jun Nakayama
- Department of Life Science and Medical Bioscience, School of Advanced Science and Engineering, Waseda University, 2-2 Wakamatsucho, Shinjuku-ku, Tokyo, 162-8480, Japan
| | - Kohki Kido
- Division of Cell-Free Science, Proteo-Science Center, Ehime University, 3 Bunkyo-cho, Matsuyama, Ehime, 790-8577, Japan
| | - Tatsuya Sawasaki
- Division of Cell-Free Science, Proteo-Science Center, Ehime University, 3 Bunkyo-cho, Matsuyama, Ehime, 790-8577, Japan
| | - Kentaro Semba
- Department of Life Science and Medical Bioscience, School of Advanced Science and Engineering, Waseda University, 2-2 Wakamatsucho, Shinjuku-ku, Tokyo, 162-8480, Japan
| | - Eiji Kubota
- Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya, Aichi, 467-8601, Japan
| | - Takashi Joh
- Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya, Aichi, 467-8601, Japan; Gamagori City Hospital, 1-1 Mukaida, Hirata-Cho, Gamagori, Aichi, 443-8501, Japan
| | - Shigeki Higashiyama
- Division of Cell Growth and Tumor Regulation, Proteo-Science Center, Ehime University, Shitsukawa, Toon, Ehime, 791-0295, Japan; Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime, 791-0295, Japan.
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30
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Tanigawa K, Maekawa M, Kiyoi T, Nakayama J, Kitazawa R, Kitazawa S, Semba K, Taguchi T, Akita S, Yoshida M, Ishimaru K, Watanabe Y, Higashiyama S. SNX9 determines the surface levels of integrin β1 in vascular endothelial cells: Implication in poor prognosis of human colorectal cancers overexpressing SNX9. J Cell Physiol 2019; 234:17280-17294. [PMID: 30784076 PMCID: PMC6617759 DOI: 10.1002/jcp.28346] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Revised: 01/31/2019] [Accepted: 02/01/2019] [Indexed: 12/17/2022]
Abstract
Angiogenesis, the formation of new blood vessels, is involved in a variety of diseases including the tumor growth. In response to various angiogenic stimulations, a number of proteins on the surface of vascular endothelial cells are activated to coordinate cell proliferation, migration, and spreading processes to form new blood vessels. Plasma membrane localization of these angiogenic proteins, which include vascular endothelial growth factor receptors and integrins, are warranted by intracellular membrane trafficking. Here, by using a siRNA library, we screened for the sorting nexin family that regulates intracellular trafficking and identified sorting nexin 9 (SNX9) as a novel angiogenic factor in human umbilical vein endothelial cells (HUVECs). SNX9 was essential for cell spreading on the Matrigel, and tube formation that mimics in vivo angiogenesis in HUVECs. SNX9 depletion significantly delayed the recycling of integrin β1, an essential adhesion molecule for angiogenesis, and reduced the surface levels of integrin β1 in HUVECs. Clinically, we showed that SNX9 protein was highly expressed in tumor endothelial cells of human colorectal cancer tissues. High-level expression of SNX9 messenger RNA significantly correlated with poor prognosis of the patients with colorectal cancer. These results suggest that SNX9 is an angiogenic factor and provide a novel target for the development of new antiangiogenic drugs.
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Affiliation(s)
- Kazufumi Tanigawa
- Department of Gastrointestinal Surgery and Surgical Oncology, Ehime University Graduate School of Medicine.,Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Ehime, Japan
| | - Masashi Maekawa
- Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Ehime, Japan.,Division of Cell Growth and Tumor Regulation, Proteo-Science Center, Ehime University
| | - Takeshi Kiyoi
- Division of Analytical Bio-medicine, Advanced Research Support Center, Ehime University
| | - Jun Nakayama
- Department of Life Science and Medical Bioscience, School of Advanced Science and Engineering, Waseda University
| | - Riko Kitazawa
- Department of Molecular Pathology, Ehime University Graduate School of Medicine.,Division of Diagnostic Pathology, Ehime University Hospital
| | - Sohei Kitazawa
- Department of Molecular Pathology, Ehime University Graduate School of Medicine
| | - Kentaro Semba
- Department of Life Science and Medical Bioscience, School of Advanced Science and Engineering, Waseda University
| | - Tomohiko Taguchi
- Department of Integrative Life Sciences, Graduate School of Life Sciences, Tohoku University
| | - Satoshi Akita
- Department of Gastrointestinal Surgery and Surgical Oncology, Ehime University Graduate School of Medicine
| | - Motohira Yoshida
- Department of Gastrointestinal Surgery and Surgical Oncology, Ehime University Graduate School of Medicine
| | - Kei Ishimaru
- Department of Gastrointestinal Surgery and Surgical Oncology, Ehime University Graduate School of Medicine
| | - Yuji Watanabe
- Department of Gastrointestinal Surgery and Surgical Oncology, Ehime University Graduate School of Medicine
| | - Shigeki Higashiyama
- Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Ehime, Japan.,Division of Cell Growth and Tumor Regulation, Proteo-Science Center, Ehime University
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31
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Murakami A, Maekawa M, Kawai K, Nakayama J, Araki N, Semba K, Taguchi T, Kamei Y, Takada Y, Higashiyama S. Cullin-3/KCTD10 E3 complex is essential for Rac1 activation through RhoB degradation in human epidermal growth factor receptor 2-positive breast cancer cells. Cancer Sci 2019; 110:650-661. [PMID: 30515933 PMCID: PMC6361568 DOI: 10.1111/cas.13899] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 11/23/2018] [Accepted: 11/26/2018] [Indexed: 01/01/2023] Open
Abstract
Rho GTPase Rac1 is a central regulator of F‐actin organization and signal transduction to control plasma membrane dynamics and cell proliferation. Dysregulated Rac1 activity is often observed in various cancers including breast cancer and is suggested to be critical for malignancy. Here, we showed that the ubiquitin E3 ligase complex Cullin‐3 (CUL3)/KCTD10 is essential for epidermal growth factor (EGF)‐induced/human epidermal growth factor receptor 2 (HER2)‐dependent Rac1 activation in HER2‐positive breast cancer cells. EGF‐induced dorsal membrane ruffle formation and cell proliferation that depends on both Rac1 and HER2 were suppressed in CUL3‐ or KCTD10‐depleted cells. Mechanistically, CUL3/KCTD10 ubiquitinated RhoB for degradation, another Rho GTPase that inhibits Rac1 activation at the plasma membrane by suppressing endosome‐to‐plasma membrane traffic of Rac1. In HER2‐positive breast cancers, high expression of Rac1 mRNA significantly correlated with poor prognosis of the patients. This study shows that this novel molecular axis (CUL3/KCTD10/RhoB) positively regulates the activity of Rac1 in HER2‐positive breast cancers, and our findings may lead to new treatment options for HER2‐ and Rac1‐positive breast cancers.
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Affiliation(s)
- Akari Murakami
- Department of Hepato-Biliary-Pancreatic Surgery and Breast Surgery, Ehime University Graduate School of Medicine, Toon, Japan.,Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Toon, Japan
| | - Masashi Maekawa
- Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Toon, Japan.,Division of Cell Growth and Tumor Regulation, Proteo-Science Center, Ehime University, Toon, Japan
| | - Katsuhisa Kawai
- Department of Histology and Cell Biology, School of Medicine, Kagawa University, Miki, Japan
| | - Jun Nakayama
- Department of Life Science and Medical Bioscience, School of Advanced Science and Engineering, Waseda University, Shinjuku-ku, Japan
| | - Nobukazu Araki
- Department of Histology and Cell Biology, School of Medicine, Kagawa University, Miki, Japan
| | - Kentaro Semba
- Department of Life Science and Medical Bioscience, School of Advanced Science and Engineering, Waseda University, Shinjuku-ku, Japan
| | - Tomohiko Taguchi
- Department of Integrative Life Sciences, Graduate School of Life Sciences, Tohoku University, Sendai, Japan
| | - Yoshiaki Kamei
- Department of Hepato-Biliary-Pancreatic Surgery and Breast Surgery, Ehime University Graduate School of Medicine, Toon, Japan
| | - Yasutsugu Takada
- Department of Hepato-Biliary-Pancreatic Surgery and Breast Surgery, Ehime University Graduate School of Medicine, Toon, Japan
| | - Shigeki Higashiyama
- Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Toon, Japan.,Division of Cell Growth and Tumor Regulation, Proteo-Science Center, Ehime University, Toon, Japan
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32
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Nakayama H, Kusumoto C, Nakahara M, Fujiwara A, Higashiyama S. Semaphorin 3F and Netrin-1: The Novel Function as a Regulator of Tumor Microenvironment. Front Physiol 2018; 9:1662. [PMID: 30532711 PMCID: PMC6265511 DOI: 10.3389/fphys.2018.01662] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Accepted: 11/05/2018] [Indexed: 01/13/2023] Open
Abstract
Axon guidance molecules play an important role in regulating proper neuronal networking during neuronal development. They also have non-neuronal properties, which include angiogenesis, inflammation, and tumor development. Semaphorin 3F (SEMA3F), a member of the class 3 semaphorins, was initially identified as an axon guidance factor, that repels axons and collapses growth cones. However, SEMA3F has similar effects on endothelial cells (ECs) and tumor cells. In this review, we discuss the novel molecular mechanisms underlying SEMA3F activity in vascular and tumor biology. Recent evidence suggests that SEMA3F functions as a PI3K-Akt-mTOR inhibitor in mammalian cells, including T cells, ECs, and tumor cells. Therefore, SEMA3F may have broad therapeutic implications. We also discuss the key role of axon guidance molecules as regulators of the tumor microenvironment. Netrin-1, a chemoattractant factor in the neuronal system, promotes tumor progression by enhancing angiogenesis and metastasis. Moreover, our recent studies demonstrate that netrin-1/neogenin interactions augment CD4+ T cell chemokinesis and elicit pro-inflammatory responses, suggesting that netrin-1 plays a key role in modulating the function of a tumor and its surrounding cells in the tumor microenvironment. Overall, this review focuses on SEMA3F and netrin-1 signaling mechanisms to understand the diverse biological functions of axon guidance molecules.
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Affiliation(s)
- Hironao Nakayama
- Department of Medical Science and Technology, Hiroshima International University, Higashihiroshima, Japan.,Division of Cell Growth and Tumor Regulation, Proteo-Science Center, Ehime University, Toon, Japan
| | - Chiaki Kusumoto
- Department of Medical Science and Technology, Hiroshima International University, Higashihiroshima, Japan
| | - Masako Nakahara
- Department of Medical Science and Technology, Hiroshima International University, Higashihiroshima, Japan
| | - Akira Fujiwara
- Department of Medical Science and Technology, Hiroshima International University, Higashihiroshima, Japan
| | - Shigeki Higashiyama
- Division of Cell Growth and Tumor Regulation, Proteo-Science Center, Ehime University, Toon, Japan
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33
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Sakaue T, Nakaoka H, Shikata F, Aono J, Kurata M, Uetani T, Hamaguchi M, Kojima A, Uchita S, Yasugi T, Higashi H, Suzuki J, Ikeda S, Higaki J, Higashiyama S, Izutani H. Biochemical and histological evidence of deteriorated bioprosthetic valve leaflets: the accumulation of fibrinogen and plasminogen. Biol Open 2018; 7:bio.034009. [PMID: 30089611 PMCID: PMC6124578 DOI: 10.1242/bio.034009] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Calcification of bioprosthetic valves (BVs) implanted in aortic position can result in gradual deterioration and necessitate aortic valve replacement. The molecular mechanism of calcium deposition on BV leaflets has been investigated, but remains to be fully elucidated. The present study aimed to identify explanted bioprosthetic valve (eBV)-specific proteins using a proteomics approach and to unveil their biochemical and histological involvements in calcium deposition on BV leaflets. Calcification, fibrosis, and glycosylation of the valves were histologically assessed using Von Kossa, Masson's Trichrome and Alcian Blue staining, as well as immunostaining. Protein expression in the explanted biological valves was analysed using proteomics and western blotting. In a histological evaluation, αSMA-positive myofibroblasts were not observed in eBV, whereas severe fibrosis occurred around calcified areas. SDS-PAGE revealed three major bands with considerably increased intensity in BV leaflets that were identified as plasminogen and fibrinogen gamma chain (100 kDa), and fibrinogen beta chain (50 and 37 kDa) by mass analysis. Immunohistochemistry showed that fibrinogen β-chain was distributed throughout the valve tissue. On the contrary, plasminogen was strongly stained in CD68-positive macrophages, as evidenced by immunofluorescence. The results suggest that two important blood coagulation-related proteins, plasminogen and fibrinogen, might affect the progression of BV degeneration. Summary: Fibrinogen was specifically deposited on whole deteriorated tissue valve leaflets, and plasminogen-positive macrophages strongly invaded the areas around calcified bioprosthetic and native tissues.
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Affiliation(s)
- Tomohisa Sakaue
- Department of Cardiovascular and Thoracic Surgery, Ehime University Graduate School of Medicine, Ehime 791-0295, Japan .,Department of Cell Growth and Tumor Regulation, Proteo-Science Center (PROS), Toon, Ehime 791-0295, Japan
| | - Hirotomo Nakaoka
- Department of Cardiovascular and Thoracic Surgery, Ehime University Graduate School of Medicine, Ehime 791-0295, Japan.,Division of Laboratory Animal Research, Advanced Research Support Center (ADRES), Toon, Ehime 791-0295, Japan
| | - Fumiaki Shikata
- Department of Cardiovascular and Thoracic Surgery, Ehime University Graduate School of Medicine, Ehime 791-0295, Japan.,Department of Cardiothoracic Surgery, St Vincent's Hospital Sydney, NSW 791-0295, Australia
| | - Jun Aono
- Department of Cardiology, Pulmonology, Hypertension, and Nephrology, Ehime University Graduate School of Medicine, Ehime 791-0295, Japan
| | - Mie Kurata
- Department of Pathology, Division of Analytical Pathology, Ehime University Graduate School of Medicine, Ehime 791-0295, Japan.,Department of Pathology, Proteo-Science Center (PROS), Toon, Ehime 791-0295, Japan
| | - Teruyoshi Uetani
- Department of Cardiology, Pulmonology, Hypertension, and Nephrology, Ehime University Graduate School of Medicine, Ehime 791-0295, Japan
| | - Mika Hamaguchi
- Department of Cardiology, Pulmonology, Hypertension, and Nephrology, Ehime University Graduate School of Medicine, Ehime 791-0295, Japan
| | - Ai Kojima
- Department of Cardiovascular and Thoracic Surgery, Ehime University Graduate School of Medicine, Ehime 791-0295, Japan
| | - Shunji Uchita
- Department of Cardiovascular and Thoracic Surgery, Ehime University Graduate School of Medicine, Ehime 791-0295, Japan
| | - Takumi Yasugi
- Department of Cardiovascular and Thoracic Surgery, Ehime University Graduate School of Medicine, Ehime 791-0295, Japan
| | - Haruhiko Higashi
- Department of Cardiology, Pulmonology, Hypertension, and Nephrology, Ehime University Graduate School of Medicine, Ehime 791-0295, Japan
| | - Jun Suzuki
- Department of Cardiology, Pulmonology, Hypertension, and Nephrology, Ehime University Graduate School of Medicine, Ehime 791-0295, Japan
| | - Shuntaro Ikeda
- Department of Cardiology, Pulmonology, Hypertension, and Nephrology, Ehime University Graduate School of Medicine, Ehime 791-0295, Japan
| | - Jitsuo Higaki
- Department of Cardiology, Pulmonology, Hypertension, and Nephrology, Ehime University Graduate School of Medicine, Ehime 791-0295, Japan
| | - Shigeki Higashiyama
- Department of Cell Growth and Tumor Regulation, Proteo-Science Center (PROS), Toon, Ehime 791-0295, Japan.,Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Toon, Ehime 791-0295, Japan
| | - Hironori Izutani
- Department of Cardiovascular and Thoracic Surgery, Ehime University Graduate School of Medicine, Ehime 791-0295, Japan
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Ahmat Amin MKB, Shimizu A, Zankov DP, Sato A, Kurita S, Ito M, Maeda T, Yoshida T, Sakaue T, Higashiyama S, Kawauchi A, Ogita H. Epithelial membrane protein 1 promotes tumor metastasis by enhancing cell migration via copine-III and Rac1. Oncogene 2018; 37:5416-5434. [PMID: 29867202 PMCID: PMC6172191 DOI: 10.1038/s41388-018-0286-0] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Revised: 04/01/2018] [Accepted: 04/03/2018] [Indexed: 01/25/2023]
Abstract
Tumor metastasis is the most common cause of cancer death. Elucidation of the mechanism of tumor metastasis is therefore important in the development of novel, effective anti-cancer therapies to reduce cancer mortality. Interaction between cancer cells and surrounding stromal cells in the tumor microenvironment is a key factor in tumor metastasis. Using a co-culture assay system with human prostate cancer LNCaP cells and primary human prostate stromal cells, we identified epithelial membrane protein 1 (EMP1) as a gene with elevated expression in the cancer cells. The orthotopic injection of LNCaP cells overexpressing EMP1 (EMP1-LNCaP cells) into the prostate of nude mice induced lymph node and lung metastases, while that of control LNCaP cells did not. EMP1-LNCaP cells had higher cell motility and Rac1 activity than control LNCaP cells. These results were also observed in other lines of cancer cells. We newly identified copine-III as an intracellular binding partner of EMP1. Knockdown of copine-III attenuated the increased cell motility and Rac1 activity in EMP1-LNCaP cells. Reduced cell motility and Rac1 activity following knockdown of copine-III in EMP1-LNCaP cells were recovered by re-expression of wild-type copine-III, but not of a copine-III mutant incapable of interacting with EMP1, suggesting the importance of the EMP1–copine-III interaction. Phosphorylated and activated Src and a Rac guanine nucleotide exchange factor Vav2 were found to be involved in the EMP1-induced enhancement of cell motility and Rac1 activation. Moreover, EMP1 was highly expressed in prostate cancer samples obtained from patients with higher Gleason score. These results demonstrate that upregulation of EMP1 significantly increases cancer cell migration that leads to tumor metastasis, suggesting that EMP1 may play an essential role as a positive regulator of tumor metastasis.
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Affiliation(s)
- Mohammad Khusni B Ahmat Amin
- Division of Molecular Medical Biochemistry, Department of Biochemistry and Molecular Biology, Shiga University of Medical Science, Otsu, Japan
| | - Akio Shimizu
- Division of Molecular Medical Biochemistry, Department of Biochemistry and Molecular Biology, Shiga University of Medical Science, Otsu, Japan
| | - Dimitar P Zankov
- Division of Molecular Medical Biochemistry, Department of Biochemistry and Molecular Biology, Shiga University of Medical Science, Otsu, Japan
| | - Akira Sato
- Division of Molecular Medical Biochemistry, Department of Biochemistry and Molecular Biology, Shiga University of Medical Science, Otsu, Japan
| | - Souichi Kurita
- Division of Molecular Medical Biochemistry, Department of Biochemistry and Molecular Biology, Shiga University of Medical Science, Otsu, Japan
| | - Masami Ito
- Division of Molecular Medical Biochemistry, Department of Biochemistry and Molecular Biology, Shiga University of Medical Science, Otsu, Japan
| | - Toshinaga Maeda
- Division of Molecular Medical Biochemistry, Department of Biochemistry and Molecular Biology, Shiga University of Medical Science, Otsu, Japan
| | - Tetsuya Yoshida
- Department of Urology, Shiga University of Medical Science, Otsu, Japan
| | - Tomohisa Sakaue
- Division of Cell Growth and Tumor Regulation, Proteo-Science Center (PROS), Ehime University, Toon, Japan.,Department of Cardiovascular and Thoracic Surgery, Ehime University Graduate School of Medicine, Toon, Japan
| | - Shigeki Higashiyama
- Division of Cell Growth and Tumor Regulation, Proteo-Science Center (PROS), Ehime University, Toon, Japan.,Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Toon, Japan
| | - Akihiro Kawauchi
- Department of Urology, Shiga University of Medical Science, Otsu, Japan
| | - Hisakazu Ogita
- Division of Molecular Medical Biochemistry, Department of Biochemistry and Molecular Biology, Shiga University of Medical Science, Otsu, Japan.
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35
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Nakayama H, Higashiyama S. [Novel function of axon guidance molecule as a regulator of tumor microenvironment]. Nihon Yakurigaku Zasshi 2018; 150:286-292. [PMID: 29225291 DOI: 10.1254/fpj.150.286] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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36
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Nakayama H, Sakaue T, Maekawa M, Fujisaki A, Higashiyama S. Cullin 3 regulates ADAMs-mediated ectodomain shedding of amphiregulin. Biochem Biophys Res Commun 2018; 499:17-23. [DOI: 10.1016/j.bbrc.2018.03.097] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Accepted: 03/13/2018] [Indexed: 01/01/2023]
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37
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Nagasawa T, Nakamichi H, Hama Y, Higashiyama S, Igarashi Y, Mitsutake S. Phytosphingosine is a novel activator of GPR120. J Biochem 2018; 164:27-32. [DOI: 10.1093/jb/mvy017] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Accepted: 01/12/2018] [Indexed: 11/12/2022] Open
Affiliation(s)
- Tomotaka Nagasawa
- Laboratory of Food Safety and Science, Department of Applied Biochemistry and Food Science, Faculty of Agriculture, Saga University, Saga 840-8502, Japan
| | - Hikaru Nakamichi
- Laboratory of Food Safety and Science, Department of Applied Biochemistry and Food Science, Faculty of Agriculture, Saga University, Saga 840-8502, Japan
| | - Yoichiro Hama
- Laboratory of Food Safety and Science, Department of Applied Biochemistry and Food Science, Faculty of Agriculture, Saga University, Saga 840-8502, Japan
| | - Shigeki Higashiyama
- Division of Cell Growth and Tumor Regulation, Proteo-Science Center, Ehime University, Toon 791-0295, Japan
| | - Yasuyuki Igarashi
- Laboratory of Biomembrane and Biofunctional Chemistry, Frontier Research Center for Advanced Material and Life Science, Hokkaido University, Sapporo 001-0021, Japan
| | - Susumu Mitsutake
- Laboratory of Food Safety and Science, Department of Applied Biochemistry and Food Science, Faculty of Agriculture, Saga University, Saga 840-8502, Japan
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38
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Kovačević I, Sakaue T, Majoleé J, Pronk MC, Maekawa M, Geerts D, Fernandez-Borja M, Higashiyama S, Hordijk PL. The Cullin-3-Rbx1-KCTD10 complex controls endothelial barrier function via K63 ubiquitination of RhoB. J Cell Biol 2018; 217:1015-1032. [PMID: 29358211 PMCID: PMC5839774 DOI: 10.1083/jcb.201606055] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2016] [Revised: 04/04/2017] [Accepted: 12/20/2017] [Indexed: 12/11/2022] Open
Abstract
The RhoA GTPase controls endothelial cell migration, adhesion, and barrier formation but the role of RhoB is unclear. Kovačević et al. now discover that RhoB is ubiquitinated by the CUL3–Rbx1–KCTD10 complex and that this is a prerequisite for lysosomal degradation of RhoB and the maintenance of endothelial barrier integrity. RhoGTPases control endothelial cell (EC) migration, adhesion, and barrier formation. Whereas the relevance of RhoA for endothelial barrier function is widely accepted, the role of the RhoA homologue RhoB is poorly defined. RhoB and RhoA are 85% identical, but RhoB’s subcellular localization and half-life are uniquely different. Here, we studied the role of ubiquitination for the function and stability of RhoB in primary human ECs. We show that the K63 polyubiquitination at lysine 162 and 181 of RhoB targets the protein to lysosomes. Moreover, we identified the RING E3 ligase complex Cullin-3–Rbx1–KCTD10 as key modulator of endothelial barrier integrity via its regulation of the ubiquitination, localization, and activity of RhoB. In conclusion, our data show that ubiquitination controls the subcellular localization and lysosomal degradation of RhoB and thereby regulates the stability of the endothelial barrier through control of RhoB-mediated EC contraction.
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Affiliation(s)
- Igor Kovačević
- Department of Molecular Cell Biology, Sanquin Research, Amsterdam, Netherlands.,Department of Physiology, Vrije Universiteit University Medical Center, Amsterdam, Netherlands
| | - Tomohisa Sakaue
- Division of Cell Growth and Tumor Regulation, Proteo-Science Center, Ehime University, Toon, Ehime, Japan.,Department of Cardiovascular and Thoracic Surgery, Ehime University Graduate School of Medicine, Toon, Ehime, Japan.,Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Jisca Majoleé
- Department of Molecular Cell Biology, Sanquin Research, Amsterdam, Netherlands
| | - Manon C Pronk
- Department of Physiology, Vrije Universiteit University Medical Center, Amsterdam, Netherlands
| | - Masashi Maekawa
- Division of Cell Growth and Tumor Regulation, Proteo-Science Center, Ehime University, Toon, Ehime, Japan.,Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Dirk Geerts
- Department of Pediatric Oncology/Hematology, Erasmus University Medical Center, Rotterdam, Netherlands
| | - Mar Fernandez-Borja
- Department of Molecular Cell Biology, Sanquin Research, Amsterdam, Netherlands
| | - Shigeki Higashiyama
- Division of Cell Growth and Tumor Regulation, Proteo-Science Center, Ehime University, Toon, Ehime, Japan .,Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Peter L Hordijk
- Department of Physiology, Vrije Universiteit University Medical Center, Amsterdam, Netherlands
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Sakaue T, Sakakibara I, Uesugi T, Fujisaki A, Nakashiro KI, Hamakawa H, Kubota E, Joh T, Imai Y, Izutani H, Higashiyama S. Corrigendum: The CUL3-SPOP-DAXX axis is a novel regulator of VEGFR2 expression in vascular endothelial cells. Sci Rep 2017; 7:46915. [PMID: 29271408 PMCID: PMC5740462 DOI: 10.1038/srep46915] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
This corrects the article DOI: 10.1038/srep42845.
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40
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Inoue Y, Shimazawa M, Nakamura S, Takata S, Hashimoto Y, Izawa H, Masuda T, Tsuruma K, Sakaue T, Nakayama H, Higashiyama S, Hara H. Both Autocrine Signaling and Paracrine Signaling of HB-EGF Enhance Ocular Neovascularization. Arterioscler Thromb Vasc Biol 2017; 38:174-185. [PMID: 29191924 DOI: 10.1161/atvbaha.117.310337] [Citation(s) in RCA: 17] [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: 03/24/2017] [Accepted: 11/17/2017] [Indexed: 12/27/2022]
Abstract
OBJECTIVE The incidence of blindness is increasing because of the increase in abnormal ocular neovascularization. Anti-VEGF (vascular endothelial growth factor) therapies have led to good results, although they are not a cure for the blindness. The purpose of this study was to determine what role HB-EGF (heparin-binding epidermal growth factor-like growth factor) plays in ocular angiogenesis. APPROACH AND RESULTS We examined the role played by HB-EGF in ocular neovascularization in 2 animal models of neovascularization: laser-induced choroidal neovascularization (CNV) and oxygen-induced retinopathy. We also studied human retinal microvascular endothelial cells in culture. Our results showed that the neovascularization was decreased in both the CNV and oxygen-induced retinopathy models in HB-EGF conditional knockout mice compared with that in wild-type mice. Moreover, the expressions of HB-EGF and VEGF were increased after laser-induced CNV and oxygen-induced retinopathy, and their expression sites were located around the neovascular areas. Exposure of human retinal microvascular endothelial cells to HB-EGF and VEGF increased their proliferation and migration, and CRM-197 (cross-reactive material-197), an HB-EGF inhibitor, decreased the HB-EGF-induced and VEGF-induced cell proliferation and migration. VEGF increased the expression of HB-EGF mRNA. VEGF-dependent activation of EGFR (epidermal growth factor receptor)/ERK1/2 (extracellular signal-regulated kinase 1/2) signaling and cell proliferation of endothelial cells required stimulation of the ADAM17 (a disintegrin and metalloprotease) and ADAM12. CRM-197 decreased the grades of the fluorescein angiograms and size of the CNV areas in marmoset monkeys. CONCLUSIONS These findings suggest that HB-EGF plays an important role in the development of CNV. Therefore, further investigations of HB-EGF are needed as a potential therapeutic target in the treatment of exudative age-related macular degeneration.
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Affiliation(s)
- Yuki Inoue
- From the Molecular Pharmacology, Department of Biofunctional Evaluation, Gifu Pharmaceutical University, Japan (Y.I., M.S., S.N., S.T., Y.H., H.I., T.M., K.T., H.H.); Proteo-Science Center, Division of Cell Growth and Tumor Regulation, Ehime University Shitsukawa, Toon, Japan (T.S., H.N., S.H.); and Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Japan (T.S., S.H.)
| | - Masamitsu Shimazawa
- From the Molecular Pharmacology, Department of Biofunctional Evaluation, Gifu Pharmaceutical University, Japan (Y.I., M.S., S.N., S.T., Y.H., H.I., T.M., K.T., H.H.); Proteo-Science Center, Division of Cell Growth and Tumor Regulation, Ehime University Shitsukawa, Toon, Japan (T.S., H.N., S.H.); and Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Japan (T.S., S.H.)
| | - Shinsuke Nakamura
- From the Molecular Pharmacology, Department of Biofunctional Evaluation, Gifu Pharmaceutical University, Japan (Y.I., M.S., S.N., S.T., Y.H., H.I., T.M., K.T., H.H.); Proteo-Science Center, Division of Cell Growth and Tumor Regulation, Ehime University Shitsukawa, Toon, Japan (T.S., H.N., S.H.); and Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Japan (T.S., S.H.)
| | - Shinsuke Takata
- From the Molecular Pharmacology, Department of Biofunctional Evaluation, Gifu Pharmaceutical University, Japan (Y.I., M.S., S.N., S.T., Y.H., H.I., T.M., K.T., H.H.); Proteo-Science Center, Division of Cell Growth and Tumor Regulation, Ehime University Shitsukawa, Toon, Japan (T.S., H.N., S.H.); and Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Japan (T.S., S.H.)
| | - Yuhei Hashimoto
- From the Molecular Pharmacology, Department of Biofunctional Evaluation, Gifu Pharmaceutical University, Japan (Y.I., M.S., S.N., S.T., Y.H., H.I., T.M., K.T., H.H.); Proteo-Science Center, Division of Cell Growth and Tumor Regulation, Ehime University Shitsukawa, Toon, Japan (T.S., H.N., S.H.); and Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Japan (T.S., S.H.)
| | - Hiroshi Izawa
- From the Molecular Pharmacology, Department of Biofunctional Evaluation, Gifu Pharmaceutical University, Japan (Y.I., M.S., S.N., S.T., Y.H., H.I., T.M., K.T., H.H.); Proteo-Science Center, Division of Cell Growth and Tumor Regulation, Ehime University Shitsukawa, Toon, Japan (T.S., H.N., S.H.); and Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Japan (T.S., S.H.)
| | - Tomomi Masuda
- From the Molecular Pharmacology, Department of Biofunctional Evaluation, Gifu Pharmaceutical University, Japan (Y.I., M.S., S.N., S.T., Y.H., H.I., T.M., K.T., H.H.); Proteo-Science Center, Division of Cell Growth and Tumor Regulation, Ehime University Shitsukawa, Toon, Japan (T.S., H.N., S.H.); and Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Japan (T.S., S.H.)
| | - Kazuhiro Tsuruma
- From the Molecular Pharmacology, Department of Biofunctional Evaluation, Gifu Pharmaceutical University, Japan (Y.I., M.S., S.N., S.T., Y.H., H.I., T.M., K.T., H.H.); Proteo-Science Center, Division of Cell Growth and Tumor Regulation, Ehime University Shitsukawa, Toon, Japan (T.S., H.N., S.H.); and Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Japan (T.S., S.H.)
| | - Tomohisa Sakaue
- From the Molecular Pharmacology, Department of Biofunctional Evaluation, Gifu Pharmaceutical University, Japan (Y.I., M.S., S.N., S.T., Y.H., H.I., T.M., K.T., H.H.); Proteo-Science Center, Division of Cell Growth and Tumor Regulation, Ehime University Shitsukawa, Toon, Japan (T.S., H.N., S.H.); and Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Japan (T.S., S.H.)
| | - Hironao Nakayama
- From the Molecular Pharmacology, Department of Biofunctional Evaluation, Gifu Pharmaceutical University, Japan (Y.I., M.S., S.N., S.T., Y.H., H.I., T.M., K.T., H.H.); Proteo-Science Center, Division of Cell Growth and Tumor Regulation, Ehime University Shitsukawa, Toon, Japan (T.S., H.N., S.H.); and Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Japan (T.S., S.H.)
| | - Shigeki Higashiyama
- From the Molecular Pharmacology, Department of Biofunctional Evaluation, Gifu Pharmaceutical University, Japan (Y.I., M.S., S.N., S.T., Y.H., H.I., T.M., K.T., H.H.); Proteo-Science Center, Division of Cell Growth and Tumor Regulation, Ehime University Shitsukawa, Toon, Japan (T.S., H.N., S.H.); and Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Japan (T.S., S.H.)
| | - Hideaki Hara
- From the Molecular Pharmacology, Department of Biofunctional Evaluation, Gifu Pharmaceutical University, Japan (Y.I., M.S., S.N., S.T., Y.H., H.I., T.M., K.T., H.H.); Proteo-Science Center, Division of Cell Growth and Tumor Regulation, Ehime University Shitsukawa, Toon, Japan (T.S., H.N., S.H.); and Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Japan (T.S., S.H.).
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Maekawa M, Tanigawa K, Sakaue T, Hiyoshi H, Kubota E, Joh T, Watanabe Y, Taguchi T, Higashiyama S. Cullin-3 and its adaptor protein ANKFY1 determine the surface level of integrin β1 in endothelial cells. Biol Open 2017; 6:1707-1719. [PMID: 29038302 PMCID: PMC5703617 DOI: 10.1242/bio.029579] [Citation(s) in RCA: 18] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Angiogenesis, the formation of new blood vessels from the pre-existing vasculature, is related to numerous pathophysiological events. We previously reported that a RING ubiquitin ligase complex scaffold protein, cullin-3 (CUL3), and one of its adaptor proteins, BAZF, regulated angiogenesis in the mouse retina by suppressing Notch signaling. However, the degree of inhibition of angiogenesis was made greater by CUL3 depletion than by BAZF depletion, suggesting other roles of CUL3 in angiogenesis besides the regulation of Notch signaling. In the present study, we found that CUL3 was critical for the cell surface level of integrin β1, an essential cell adhesion molecule for angiogenesis in HUVECs. By siRNA screening of 175 BTBPs, a family of adaptor proteins for CUL3, we found that ANKFY1/Rabankyrin-5, an early endosomal BTBP, was also critical for localization of surface integrin β1 and angiogenesis. CUL3 interacted with ANKFY1 and was required for the early endosomal localization of ANKFY1. These data suggest that CUL3/ANKFY1 regulates endosomal membrane traffic of integrin β1. Our results highlight the multiple roles of CUL3 in angiogenesis, which are mediated through distinct CUL3-adaptor proteins.
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Affiliation(s)
- Masashi Maekawa
- Division of Cell Growth and Tumor Regulation, Proteo-Science Center, Ehime University, Matsuyama 791-0295, Japan .,Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Matsuyama 791-0295, Japan
| | - Kazufumi Tanigawa
- Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Matsuyama 791-0295, Japan.,Department of Gastrointestinal Surgery and Surgical Oncology, Ehime University Graduate School of Medicine, Matsuyama 791-0295, Japan
| | - Tomohisa Sakaue
- Division of Cell Growth and Tumor Regulation, Proteo-Science Center, Ehime University, Matsuyama 791-0295, Japan.,Department of Cardiovascular and Thoracic Surgery, Ehime University Graduate School of Medicine, Matsuyama 791-0295, Japan
| | - Hiromi Hiyoshi
- Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Nagoya City 467-8601, Japan
| | - Eiji Kubota
- Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Nagoya City 467-8601, Japan
| | - Takashi Joh
- Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Nagoya City 467-8601, Japan
| | - Yuji Watanabe
- Department of Gastrointestinal Surgery and Surgical Oncology, Ehime University Graduate School of Medicine, Matsuyama 791-0295, Japan
| | - Tomohiko Taguchi
- Department of Health Chemistry, Graduate School of Pharmaceutical Science, University of Tokyo, Tokyo 113-0033, Japan.,Pathological Cell Biology Laboratory, Graduate School of Pharmaceutical Science, University of Tokyo, Tokyo 113-0033, Japan
| | - Shigeki Higashiyama
- Division of Cell Growth and Tumor Regulation, Proteo-Science Center, Ehime University, Matsuyama 791-0295, Japan .,Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Matsuyama 791-0295, Japan
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Hara K, Izumi N, Tsukioka T, Chung K, Komatsu H, Toda M, Miyamoto H, Kimura T, Suzuki S, Yoshida A, Higashiyama S, Kawabe J, Nishiyama N. P3.16-032 Prediction of Postoperative Lung Function in Patients with Lung Cancer by Lung Lobe. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Sakaue T, Maekawa M, Nakayama H, Higashiyama S. Prospect of divergent roles for the CUL3 system in vascular endothelial cell function and angiogenesis. J Biochem 2017; 162:237-245. [PMID: 28981750 DOI: 10.1093/jb/mvx051] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [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: 04/30/2017] [Accepted: 06/05/2017] [Indexed: 11/14/2022] Open
Abstract
Tissue remodelling and regeneration in various pathophysiological conditions (e.g. the processes of development, pregnancy, inflammation, wound healing, tissue regeneration, tumor growth, etc.) require angiogenesis, a dynamically coordinated response to stimuli from the extracellular microenvironment. During angiogenic and angiostatic responses, endothelial cells play a central role in the blood vessel formation and regression. Angiostatic responses, which are evoked by crucial factors such as VEGF and DLL4, have been elucidated. However, it has not been revealed, how endothelial cells process these conflicting signals. The study of VEGFR-Notch cross-signalling provided some clues. We discuss here the potential roles of cullin 3-based ubiquitin E3 ligases as key players in the process of various signals in endothelial cell function and angiogenesis. Our recent findings show that they function as units to process conflicting signalling crosstalk, epigenetic regulation of key factors, and functional barrier maintenance. We also expect more divergent roles of cullin 3-based ubiquitin E3 ligases in endothelial cell function and angiogenesis, and for their potential use as therapeutic targets.
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Affiliation(s)
- Tomohisa Sakaue
- Division of Cell Growth and Tumor Regulation, Proteo-Science Center, Ehime University, Ehime, Japan.,Department of Cardiovascular and Thoracic Surgery, Ehime University Graduate School of Medicine, Ehime, Japan.,Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Toon, Shitsukawa, Ehime 791-0295, Japan
| | - Masashi Maekawa
- Division of Cell Growth and Tumor Regulation, Proteo-Science Center, Ehime University, Ehime, Japan.,Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Toon, Shitsukawa, Ehime 791-0295, Japan
| | - Hironao Nakayama
- Division of Cell Growth and Tumor Regulation, Proteo-Science Center, Ehime University, Ehime, Japan.,Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Toon, Shitsukawa, Ehime 791-0295, Japan
| | - Shigeki Higashiyama
- Division of Cell Growth and Tumor Regulation, Proteo-Science Center, Ehime University, Ehime, Japan.,Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Toon, Shitsukawa, Ehime 791-0295, Japan
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44
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Ohno Y, Koizumi M, Nakayama H, Watanabe T, Hirooka M, Tokumoto Y, Kuroda T, Abe M, Fukuda S, Higashiyama S, Kumagi T, Hiasa Y. Downregulation of ANP32B exerts anti-apoptotic effects in hepatocellular carcinoma. PLoS One 2017; 12:e0177343. [PMID: 28486557 PMCID: PMC5423643 DOI: 10.1371/journal.pone.0177343] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Accepted: 04/26/2017] [Indexed: 01/17/2023] Open
Abstract
The acidic (leucine-rich) nuclear phosphoprotein 32 family member B (ANP32B), a highly conserved member of the acidic nuclear phosphoprotein 32 (ANP32) family, is critical for the development of normal tissue. However, its role in the development of hepatocellular carcinoma (HCC) is controversial. In this study, we elucidated the role of ANP32B in HCC cell lines and tissues. ANP32B expression in HCC cell lines was modulated using siRNA and ANP32B expression plasmids and lentiviruses. The levels of apoptosis-related proteins were analyzed by real-time RT-PCR and Western blotting. The expression of ANP32B in tissues from patients with HCC was investigated using real-time RT-PCR and immunohistochemistry. ANP32B knockdown by siRNA altered the expression of apoptosis-related proteins in HCC cell lines and reduced the expression of cleaved forms of caspase 3 and caspase 9, but not that of caspase 8, in HCC cells cultured with the pro-apoptotic agent staurosporine. Phosphorylated Bad was upregulated, whereas Bak was downregulated. Moreover, ABT-737, which binds to and inhibits anti-apoptotic proteins of the Bcl-2 family, rendered HCC cells resistant to apoptosis induced by ANP32B silencing. Conversely, ANP32B overexpression decreased Bad phosphorylation and upregulated Bak, but did not induce apoptosis because Bax expression was downregulated. In tissues from patients with HCC, a low tumor/non-tumor ratio of ANP32B mRNA expression was related to advanced UICC stage (p = 0.032). TUNEL-positive cells were observed in parallel with ANP32B expression in HCC tissues. ANP32B modulates Bad phosphorylation as well as Bak and Bax expression, resulting in regulation of apoptosis in HCC. These findings indicate the potential value of ANP32B as a therapeutic target for HCC.
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Affiliation(s)
- Yoshinori Ohno
- Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Mitsuhito Koizumi
- Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Hironao Nakayama
- Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
- Division of Cell Growth and Tumor Regulation, Proteo-Science Center (PROS), Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Takao Watanabe
- Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Masashi Hirooka
- Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Yoshio Tokumoto
- Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Taira Kuroda
- Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Masanori Abe
- Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Shinji Fukuda
- Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
- Division of Cell Growth and Tumor Regulation, Proteo-Science Center (PROS), Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Shigeki Higashiyama
- Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
- Division of Cell Growth and Tumor Regulation, Proteo-Science Center (PROS), Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Teru Kumagi
- Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Yoichi Hiasa
- Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
- * E-mail:
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45
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Iwakura Y, Wang R, Inamura N, Araki K, Higashiyama S, Takei N, Nawa H. Glutamate-dependent ectodomain shedding of neuregulin-1 type II precursors in rat forebrain neurons. PLoS One 2017; 12:e0174780. [PMID: 28350885 PMCID: PMC5370147 DOI: 10.1371/journal.pone.0174780] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2016] [Accepted: 03/15/2017] [Indexed: 01/30/2023] Open
Abstract
The neurotrophic factor neuregulin 1 (NRG1) regulates neuronal development, glial differentiation, and excitatory synapse maturation. NRG1 is synthesized as a membrane-anchored precursor and is then liberated by proteolytic processing or exocytosis. Mature NRG1 then binds to its receptors expressed by neighboring neurons or glial cells. However, the molecular mechanisms that govern this process in the nervous system are not defined in detail. Here we prepared neuron-enriched and glia-enriched cultures from embryonic rat neocortex to investigate the role of neurotransmitters that regulate the liberation/release of NRG1 from the membrane of neurons or glial cells. Using a two-site enzyme immunoassay to detect soluble NRG1, we show that, of various neurotransmitters, glutamate was the most potent inducer of NRG1 release in neuron-enriched cultures. NRG1 release in glia-enriched cultures was relatively limited. Furthermore, among glutamate receptor agonists, N-Methyl-D-Aspartate (NMDA) and kainate (KA), but not AMPA or tACPD, mimicked the effects of glutamate. Similar findings were acquired from analysis of the hippocampus of rats with KA-induced seizures. To evaluate the contribution of members of a disintegrin and metalloproteinase (ADAM) families to NRG1 release, we transfected primary cultures of neurons with cDNA vectors encoding NRG1 types I, II, or III precursors, each tagged with the alkaline phosphatase reporter. Analysis of alkaline phosphatase activity revealed that the NRG1 type II precursor was subjected to tumor necrosis factor-α-converting enzyme (TACE) / a Disintegrin And Metalloproteinase 17 (ADAM17) -dependent ectodomain shedding in a protein kinase C-dependent manner. These results suggest that glutamatergic neurotransmission positively regulates the ectodomain shedding of NRG1 type II precursors and liberates the active NRG1 domain in an activity-dependent manner.
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Affiliation(s)
- Yuriko Iwakura
- Department of Molecular Neurobiology, Brain Research Institute, Niigata University, Niigata, Japan
- * E-mail:
| | - Ran Wang
- Department of Molecular Neurobiology, Brain Research Institute, Niigata University, Niigata, Japan
| | - Naoko Inamura
- Department of Molecular Neurobiology, Brain Research Institute, Niigata University, Niigata, Japan
| | - Kazuaki Araki
- Department of Molecular Neurobiology, Brain Research Institute, Niigata University, Niigata, Japan
| | - Shigeki Higashiyama
- Department of Biochemistry and Molecular Genetics, Ehime University, Graduate School of Medicine, Ehime, Japan
| | - Nobuyuki Takei
- Department of Molecular Neurobiology, Brain Research Institute, Niigata University, Niigata, Japan
| | - Hiroyuki Nawa
- Department of Molecular Neurobiology, Brain Research Institute, Niigata University, Niigata, Japan
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Sakaue T, Fujisaki A, Nakayama H, Maekawa M, Hiyoshi H, Kubota E, Joh T, Izutani H, Higashiyama S. Neddylated Cullin 3 is required for vascular endothelial-cadherin-mediated endothelial barrier function. Cancer Sci 2017; 108:208-215. [PMID: 27987332 PMCID: PMC5329144 DOI: 10.1111/cas.13133] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Revised: 12/01/2016] [Accepted: 12/02/2016] [Indexed: 01/13/2023] Open
Abstract
Vascular endothelial (VE)‐cadherin, a major endothelial adhesion molecule, regulates vascular permeability, and increased vascular permeability has been observed in several cancers. The aim of this study was to elucidate the role of the NEDD8‐Cullin E3 ligase, in maintaining barrier permeability. To this end, we investigated the effects of the inhibition of Cullin E3 ligases, by using inhibitors and knockdown techniques in HUVECs. Furthermore, we analyzed the mRNA and protein levels of the ligases by quantitative RT‐PCR and Western blotting, respectively. The results revealed that NEDD8‐conjugated Cullin 3 is required for VE‐cadherin‐mediated endothelial barrier functions. Treatment of HUVECs with MLN4924, a chemical inhibitor of the NEDD8‐activating enzyme, led to high vascular permeability due to impaired cell–cell contact. Similar results were obtained when HUVECs were treated with siRNA directed against Cullin 3, one of the target substrates of NEDD8. Immunocytochemical staining showed that both treatments equally depleted VE‐cadherin protein localized at the cell–cell borders. However, quantitative RT‐PCR showed that there was no significant difference in the VE‐cadherin mRNA levels between the treatment and control groups. In addition, cycloheximide chase assay revealed that the half‐life of VE‐cadherin protein was dramatically reduced by Cullin 3 depletion. Together, these findings suggest that neddylated Cullin 3 plays a crucial role in endothelial cell barrier function by regulating VE‐cadherin.
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Affiliation(s)
- Tomohisa Sakaue
- Division of Cell Growth and Tumor Regulation, Proteo-Science Center (PROS), Ehime University, Toon, Japan.,Department of Cardiovascular and Thoracic Surgery, Ehime University Graduate School of Medicine, Toon, Japan
| | - Ayako Fujisaki
- Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Toon, Japan
| | - Hironao Nakayama
- Division of Cell Growth and Tumor Regulation, Proteo-Science Center (PROS), Ehime University, Toon, Japan.,Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Toon, Japan
| | - Masashi Maekawa
- Division of Cell Growth and Tumor Regulation, Proteo-Science Center (PROS), Ehime University, Toon, Japan.,Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Toon, Japan
| | - Hiromi Hiyoshi
- Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Eiji Kubota
- Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Takashi Joh
- Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Hironori Izutani
- Department of Cardiovascular and Thoracic Surgery, Ehime University Graduate School of Medicine, Toon, Japan
| | - Shigeki Higashiyama
- Division of Cell Growth and Tumor Regulation, Proteo-Science Center (PROS), Ehime University, Toon, Japan.,Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Toon, Japan
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Sakaue T, Shikata F, Utsunomiya K, Fukae S, Kurata M, Nakaoka H, Okazaki M, Kawanishi Y, Kojima A, Higashiyama S, Izutani H. Proteomics-based analysis of lung injury-induced proteins in a mouse model of common bile duct ligation. Surgery 2017; 161:1525-1535. [PMID: 28143660 DOI: 10.1016/j.surg.2016.12.017] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Revised: 12/13/2016] [Accepted: 12/13/2016] [Indexed: 12/16/2022]
Abstract
BACKGROUND Lung injury is a life-threatening complication in patients with liver dysfunction. We recently provided an experimental lung injury model in mouse with common bile duct ligation. In this study, we aimed to characterize the pathologic and biochemical features of lung tissues in common bile duct ligation mice using a proteomic approach. METHODS Common bile ducts of BALB/c mice, 8 weeks of age, were ligated operatively. CD31-expressing pulmonary cells were sorted with immunomagnetic microbeads, and protein profiles were examined by 2-dimensional gel electrophoresis. Based on the results of protein identification, immunohistochemistry and quantitative reverse transcription polymerase chain reaction were carried out in pulmonary and hepatic tissues. RESULTS Two-dimensional gel electrophoresis revealed 3 major inflammation-associated proteins exhibiting considerable increases in the number of CD31-positive pulmonary cells after common bile duct ligation. Mass spectrometry analysis identified these proteins as SerpinB1a (48 kDa), ANXA1 (46 kDa), and S100A9 (16 kDa). Furthermore, the 3 proteins were more highly expressed in dilated pulmonary blood vessels of common bile duct ligation mice, in which neutrophils and monocytes were prominent, as shown by immunohistochemistry. More importantly, SerpinB1a mRNA and protein were significantly upregulated in the liver, whereas S100A9 and ANXA1 mRNA and protein were upregulated in the lungs, as shown by quantitative reverse transcription polymerase chain reaction and Western blotting. CONCLUSION We identified 3 proteins that were highly expressed in the lung after common bile duct ligation using a proteomics-based approach.
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Affiliation(s)
- Tomohisa Sakaue
- Department of Cardiovascular and Thoracic Surgery, Ehime University Graduate School of Medicine, Toon, Ehime, Japan; Department of Cell Growth and Tumor Regulation, Proteo-Science Center (PROS), Toon, Ehime, Japan
| | - Fumiaki Shikata
- Department of Cardiovascular and Thoracic Surgery, Ehime University Graduate School of Medicine, Toon, Ehime, Japan; Department of Cardiothoracic Surgery, St Vincent's Hospital Sydney, NSW, Australia
| | - Kaho Utsunomiya
- Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Shunya Fukae
- Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Mie Kurata
- Department of Pathology, Division of Analytical Pathology, Ehime University Graduate School of Medicine, Toon, Ehime, Japan; Department of Pathology, Proteo-Science Center (PROS), Toon, Ehime, Japan
| | - Hirotomo Nakaoka
- Department of Cardiovascular and Thoracic Surgery, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Mikio Okazaki
- Department of Cardiovascular and Thoracic Surgery, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Yujiro Kawanishi
- Department of Cardiothoracic Surgery, St Vincent's Hospital Sydney, NSW, Australia
| | - Ai Kojima
- Department of Cardiovascular and Thoracic Surgery, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Shigeki Higashiyama
- Department of Cell Growth and Tumor Regulation, Proteo-Science Center (PROS), Toon, Ehime, Japan; Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Hironori Izutani
- Department of Cardiovascular and Thoracic Surgery, Ehime University Graduate School of Medicine, Toon, Ehime, Japan.
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Nanba D, Toki F, Tate S, Imai M, Matsushita N, Toki H, Higashiyama S, Barrandon Y. Cell motion predicts human epidermal stemness. J Dermatol Sci 2016. [DOI: 10.1016/j.jdermsci.2016.08.160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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49
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Nishida-Fukuda H, Araki R, Shudou M, Okazaki H, Tomono Y, Nakayama H, Fukuda S, Sakaue T, Shirakata Y, Sayama K, Hashimoto K, Detmar M, Higashiyama S, Hirakawa S. Ectodomain Shedding of Lymphatic Vessel Endothelial Hyaluronan Receptor 1 (LYVE-1) Is Induced by Vascular Endothelial Growth Factor A (VEGF-A). J Biol Chem 2016; 291:10490-500. [PMID: 26966180 DOI: 10.1074/jbc.m115.683201] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2015] [Indexed: 12/24/2022] Open
Abstract
Lymphatic vessel endothelial hyaluronan receptor 1 (LYVE-1), a type I transmembrane glycoprotein, is known as one of the most specific lymphatic vessel markers in the skin. In this study, we found that the ectodomain of LYVE-1 undergoes proteolytic cleavage, and this process produces soluble LYVE-1. We further identified the cleavage site for ectodomain shedding and generated an uncleavable mutant of LYVE-1. In lymphatic endothelial cells, ectodomain shedding of LYVE-1 was induced by vascular endothelial growth factor (VEGF)-A, an important factor for angiogenesis and lymphangiogenesis under pathological conditions. VEGF-A-induced LYVE-1 ectodomain shedding was mediated via the extracellular signal-regulated kinase (ERK) and a disintegrin and metalloproteinase (ADAM) 17. Wild-type LYVE-1, but not uncleavable LYVE-1, promoted migration of lymphatic endothelial cells in response to VEGF-A. Immunostaining analyses in human psoriasis skin lesions and VEGF-A transgenic mouse skin suggested that the ectodomain shedding of LYVE-1 occurred in lymphatic vessels undergoing chronic inflammation. These results indicate that the ectodomain shedding of LYVE-1 might be involved in promoting pathological lymphangiogenesis.
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Affiliation(s)
| | | | - Masachika Shudou
- Bioscience, Advanced Research Support Center (ADRES), Ehime University Graduate School of Medicine, Toon 791-0295, Japan
| | | | - Yasuko Tomono
- Division of Molecular and Cell Biology, Shigei Medical Research Institute, Okayama 701-0202, Japan
| | - Hironao Nakayama
- Biochemistry and Molecular Genetics, and Strategic Young Researcher Overseas Visiting Program for Accelerating Brain Circulation, Japan Society for the Promotion of Science (JSPS), 5-3-1 Kojimachi, Chiyoda-ku, Tokyo 102-0083, Japan, Division of Cell Growth and Tumor Regulation, Proteo-Science Center (PROS), Ehime University, Toon 791-0295, Japan
| | - Shinji Fukuda
- Biochemistry and Molecular Genetics, and Division of Cell Growth and Tumor Regulation, Proteo-Science Center (PROS), Ehime University, Toon 791-0295, Japan
| | - Tomohisa Sakaue
- Biochemistry and Molecular Genetics, and Division of Cell Growth and Tumor Regulation, Proteo-Science Center (PROS), Ehime University, Toon 791-0295, Japan
| | | | | | | | - Michael Detmar
- Institute of Pharmaceutical Sciences, Swiss Federal Institute of Technology, ETH Zurich, Zurich CH-8093, Switzerland, and
| | - Shigeki Higashiyama
- Biochemistry and Molecular Genetics, and Strategic Young Researcher Overseas Visiting Program for Accelerating Brain Circulation, Japan Society for the Promotion of Science (JSPS), 5-3-1 Kojimachi, Chiyoda-ku, Tokyo 102-0083, Japan, Division of Cell Growth and Tumor Regulation, Proteo-Science Center (PROS), Ehime University, Toon 791-0295, Japan
| | - Satoshi Hirakawa
- From the Departments of Dermatology, Strategic Young Researcher Overseas Visiting Program for Accelerating Brain Circulation, Japan Society for the Promotion of Science (JSPS), 5-3-1 Kojimachi, Chiyoda-ku, Tokyo 102-0083, Japan, Department of Dermatology, Hamamatsu University School of Medicine, Hamamatsu 431-3192, Japan
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50
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Hiraoka C, Toki F, Shiraishi K, Sayama K, Nishimura EK, Miura H, Higashiyama S, Nanba D. Two clonal types of human skin fibroblasts with different potentials for proliferation and tissue remodeling ability. J Dermatol Sci 2016; 82:84-94. [PMID: 26867959 DOI: 10.1016/j.jdermsci.2016.01.009] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [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: 10/06/2015] [Revised: 01/05/2016] [Accepted: 01/25/2016] [Indexed: 11/19/2022]
Abstract
BACKGROUND Skin fibroblast heterogeneity is of growing interest due to its relevance in not only skin development but also cutaneous wound healing. However, the characterization of human dermal fibroblasts at a clonal level has not been accomplished and their functional heterogeneity remains poorly understood. OBJECTIVE The aim of this study was to define the clonal heterogeneity of human dermal fibroblasts. METHODS Isolated human dermal fibroblasts were clonally expanded and categorized by comprehensive phenotypic and gene expression profiling. RESULTS Single fibroblasts were significantly multiplied and efficiently cloned without chromosomal abnormalities under hypoxic conditions. Individual clones were heterogeneous in their proliferative capacity, and gene expression profiling revealed differences in the expression of genes involved in extracellular matrix synthesis and degradation. Each cloned fibroblast also had different abilities in terms of collagen remodeling. All phenotypic and gene expression data were analyzed with Spearman's rank correlation, and fibroblasts were categorized into at least two functional clonal types. One was highly proliferative, while the other was less proliferative but had the ability to remodel the tissue architecture. The proliferative clones were predominant in infants, but decreased with physiological aging. CONCLUSION This study provides strong evidence for the functional heterogeneity of human dermal fibroblasts at a clonal level, which has implications regarding skin repair and aging.
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Affiliation(s)
- Chihiro Hiraoka
- Division of Cell Growth and Tumor Regulation, Proteo-Science Center (PROS), Ehime University, Toon, Ehime 791-0295, Japan; Department of Biochemistry and Molecular Genetics, Graduate School of Medicine, Ehime University, Toon, Ehime 791-0295, Japan; Department of Bone and Joint Surgery, Graduate School of Medicine, Ehime University, Toon, Ehime 791-0295, Japan
| | - Fujio Toki
- Department of Biochemistry and Molecular Genetics, Graduate School of Medicine, Ehime University, Toon, Ehime 791-0295, Japan; Department of Stem Cell Biology, Medical Research Institute, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8510, Japan
| | - Ken Shiraishi
- Department of Dermatology, Graduate School of Medicine, Ehime University, Toon, Ehime 791-0295, Japan
| | - Koji Sayama
- Department of Dermatology, Graduate School of Medicine, Ehime University, Toon, Ehime 791-0295, Japan
| | - Emi K Nishimura
- Department of Stem Cell Biology, Medical Research Institute, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8510, Japan
| | - Hiromasa Miura
- Department of Bone and Joint Surgery, Graduate School of Medicine, Ehime University, Toon, Ehime 791-0295, Japan
| | - Shigeki Higashiyama
- Division of Cell Growth and Tumor Regulation, Proteo-Science Center (PROS), Ehime University, Toon, Ehime 791-0295, Japan; Department of Biochemistry and Molecular Genetics, Graduate School of Medicine, Ehime University, Toon, Ehime 791-0295, Japan
| | - Daisuke Nanba
- Division of Cell Growth and Tumor Regulation, Proteo-Science Center (PROS), Ehime University, Toon, Ehime 791-0295, Japan; Department of Biochemistry and Molecular Genetics, Graduate School of Medicine, Ehime University, Toon, Ehime 791-0295, Japan; Department of Stem Cell Biology, Medical Research Institute, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8510, Japan.
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