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Osawa K, Yamamoto S, Yamano Y, Kita A, Okamoto K, Kato N, Tatematsu Y, Kojima F, Ohya M, Hara S, Murata SI, Inoue N, Maruyama S, Araki SI. Overlapping Atypical Hemolytic Uremic Syndrome and C3 Glomerulopathy with Mutation in CFI in a Japanese Patient: A Case Report. Intern Med 2023:2713-23. [PMID: 37926536 DOI: 10.2169/internalmedicine.2713-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/07/2023] Open
Abstract
A 34-year-old Japanese man presented with blurred vision, headache, nausea, anemia, thrombocytopenia, and severe renal dysfunction. Thrombotic microangiopathy was initially suspected to have been caused by malignant hypertension. Antihypertensive medications did not improve his thrombocytopenia or renal dysfunction, and other diseases causing thrombotic microangiopathy were ruled out. Therefore, the patient was diagnosed with atypical hemolytic uremic syndrome. A renal biopsy revealed an overlap of thrombotic microangiopathy and C3 glomerulopathy. Genetic testing revealed c.848A>G (p.Asp283Gly), a missense heterozygous variant in the gene encoding complement factor I. Overlapping atypical hemolytic uremic syndrome and C3 glomerulopathy with complement factor I mutation is very rare, especially in Japan.
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Affiliation(s)
- Kosuke Osawa
- Department of Nephrology, School of Medicine, Wakayama Medical University, Japan
| | - Shuto Yamamoto
- Department of Nephrology, School of Medicine, Wakayama Medical University, Japan
| | - Yukiko Yamano
- Department of Nephrology, School of Medicine, Wakayama Medical University, Japan
| | - Ayako Kita
- Department of Nephrology, School of Medicine, Wakayama Medical University, Japan
| | - Kota Okamoto
- Department of Nephrology, School of Medicine, Wakayama Medical University, Japan
| | - Noritoshi Kato
- Department of Nephrology, Graduate School of Medicine, Nagoya University, Japan
| | | | - Fumiyoshi Kojima
- Department of Human Pathology, School of Medicine, Wakayama Medical University, Japan
| | - Masaki Ohya
- Department of Nephrology, School of Medicine, Wakayama Medical University, Japan
| | - Shigeo Hara
- Department of Pathology, Kobe City Medical Center General Hospital, Japan
| | - Shin-Ichi Murata
- Department of Human Pathology, School of Medicine, Wakayama Medical University, Japan
| | - Norimitsu Inoue
- Department of Molecular Genetics, School of Medicine, Wakayama Medical University, Japan
| | - Shoichi Maruyama
- Department of Nephrology, Graduate School of Medicine, Nagoya University, Japan
| | - Shin-Ichi Araki
- Department of Nephrology, School of Medicine, Wakayama Medical University, Japan
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Kita A, Rytel E, Miedzianka J, Turski W, Wicha-Komsta K, Kucharska A, Lenartowicz T. The content of biologically active compounds in potato tubers of Ismena (yellow flesh) and Provita (purple flesh) varieties – A comparison. J Food Compost Anal 2023. [DOI: 10.1016/j.jfca.2022.104898] [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: 11/28/2022]
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3
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Satoh R, Hagihara K, Matsuura K, Manse Y, Kita A, Kunoh T, Masuko T, Moriyama M, Moriyama H, Tanabe G, Muraoka O, Sugiura R. Identification of ACA-28, a 1′-acetoxychavicol acetate analogue compound, as a novel modulator of ERK MAPK signaling, which preferentially kills human melanoma cells. Genes Cells 2017; 22:608-618. [DOI: 10.1111/gtc.12499] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Accepted: 04/02/2017] [Indexed: 12/28/2022]
Affiliation(s)
- Ryosuke Satoh
- Laboratory of Molecular Pharmacogenomics, Department of Pharmaceutical Sciences; Kindai University; Kowakae 3-4-1 Higashi-Osaka 577-8502 Japan
| | - Kanako Hagihara
- Laboratory of Molecular Pharmacogenomics, Department of Pharmaceutical Sciences; Kindai University; Kowakae 3-4-1 Higashi-Osaka 577-8502 Japan
| | - Kazuki Matsuura
- Laboratory of Molecular Pharmacogenomics, Department of Pharmaceutical Sciences; Kindai University; Kowakae 3-4-1 Higashi-Osaka 577-8502 Japan
| | - Yoshiaki Manse
- Laboratory of Molecular Pharmacogenomics, Department of Pharmaceutical Sciences; Kindai University; Kowakae 3-4-1 Higashi-Osaka 577-8502 Japan
- Laboratory of Organic Chemistry, Department of Pharmacy; Kindai University; Kowakae 3-4-1 Higashi-Osaka 577-8502 Japan
| | - Ayako Kita
- Laboratory of Molecular Pharmacogenomics, Department of Pharmaceutical Sciences; Kindai University; Kowakae 3-4-1 Higashi-Osaka 577-8502 Japan
| | - Tatsuki Kunoh
- Laboratory of Molecular Pharmacogenomics, Department of Pharmaceutical Sciences; Kindai University; Kowakae 3-4-1 Higashi-Osaka 577-8502 Japan
| | - Takashi Masuko
- Cell Biology Laboratory, Department of Pharmaceutical Sciences; Kindai University; Kowakae 3-4-1 Higashi-Osaka 577-8502 Japan
| | - Mariko Moriyama
- Pharmaceutical Research and Technology Institute; Kindai University; Kowakae 3-4-1 Higashi-Osaka 577-8502 Japan
| | - Hiroyuki Moriyama
- Pharmaceutical Research and Technology Institute; Kindai University; Kowakae 3-4-1 Higashi-Osaka 577-8502 Japan
| | - Genzoh Tanabe
- Laboratory of Organic Chemistry, Department of Pharmacy; Kindai University; Kowakae 3-4-1 Higashi-Osaka 577-8502 Japan
| | - Osamu Muraoka
- Laboratory of Organic Chemistry, Department of Pharmacy; Kindai University; Kowakae 3-4-1 Higashi-Osaka 577-8502 Japan
| | - Reiko Sugiura
- Laboratory of Molecular Pharmacogenomics, Department of Pharmaceutical Sciences; Kindai University; Kowakae 3-4-1 Higashi-Osaka 577-8502 Japan
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4
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Rytel E, Tajner-Czopek A, Miedzianka J, Kita A, Nemś A, Hamouz K. Acrylamide content in dried coloured-flesh potato products: Effects of drying. International Journal of Food Properties 2017. [DOI: 10.1080/10942912.2017.1295255] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- E. Rytel
- Department of Food Storage and Technology, Wrocław University of Environmental and Life Sciences, Wrocław, Poland
| | - A. Tajner-Czopek
- Department of Food Storage and Technology, Wrocław University of Environmental and Life Sciences, Wrocław, Poland
| | - J. Miedzianka
- Department of Food Storage and Technology, Wrocław University of Environmental and Life Sciences, Wrocław, Poland
| | - A. Kita
- Department of Food Storage and Technology, Wrocław University of Environmental and Life Sciences, Wrocław, Poland
| | - A. Nemś
- Department of Food Storage and Technology, Wrocław University of Environmental and Life Sciences, Wrocław, Poland
| | - K. Hamouz
- Department of Plant Production, Czech University of Life Sciences in Prague, Prague, Czech Republic
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5
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Satoh R, Matsumura Y, Tanaka A, Takada M, Ito Y, Hagihara K, Inari M, Kita A, Fukao A, Fujiwara T, Hirai S, Tani T, Sugiura R. Spatial regulation of the KH domain RNA-binding protein Rnc1 mediated by a Crm1-independent nuclear export system in Schizosaccharomyces pombe. Mol Microbiol 2017; 104:428-448. [PMID: 28142187 DOI: 10.1111/mmi.13636] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/26/2017] [Indexed: 10/20/2022]
Abstract
RNA-binding proteins (RBPs) play important roles in the posttranscriptional regulation of gene expression, including mRNA stability, transport and translation. Fission yeast rnc1+ encodes a K Homology (KH)-type RBP, which binds and stabilizes the Pmp1 MAPK phosphatase mRNA thereby suppressing the Cl- hypersensitivity of calcineurin deletion and MAPK signaling mutants. Here, we analyzed the spatial regulation of Rnc1 and discovered a putative nuclear export signal (NES)Rnc1 , which dictates the cytoplasmic localization of Rnc1 in a Crm1-independent manner. Notably, mutations in the NESRnc1 altered nucleocytoplasmic distribution of Rnc1 and abolished its function to suppress calcineurin deletion, although the Rnc1 NES mutant maintains the ability to bind Pmp1 mRNA. Intriguingly, the Rnc1 NES mutant destabilized Pmp1 mRNA, suggesting the functional importance of the Rnc1 cytoplasmic localization. Mutation in Rae1, but not Mex67 deletion or overproduction, induced Rnc1 accumulation in the nucleus, suggesting that Rnc1 is exported from the nucleus to the cytoplasm via the mRNA export pathway involving Rae1. Importantly, mutations in the Rnc1 KH-domains abolished the mRNA-binding ability and induced nuclear localization, suggesting that Rnc1 may be exported from the nucleus together with its target mRNAs. Collectively, the functional Rae1-dependent mRNA export system may influence the cytoplasmic localization and function of Rnc1.
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Affiliation(s)
- Ryosuke Satoh
- Laboratory of Molecular Pharmacogenomics, Department of Pharmaceutical Sciences, Kindai University, Higashiosaka City, Osaka, 577-8502, Japan
| | - Yasuhiro Matsumura
- Laboratory of Molecular Pharmacogenomics, Department of Pharmaceutical Sciences, Kindai University, Higashiosaka City, Osaka, 577-8502, Japan
| | - Akitomo Tanaka
- Laboratory of Molecular Pharmacogenomics, Department of Pharmaceutical Sciences, Kindai University, Higashiosaka City, Osaka, 577-8502, Japan
| | - Makoto Takada
- Laboratory of Molecular Pharmacogenomics, Department of Pharmaceutical Sciences, Kindai University, Higashiosaka City, Osaka, 577-8502, Japan
| | - Yuna Ito
- Laboratory of Molecular Pharmacogenomics, Department of Pharmaceutical Sciences, Kindai University, Higashiosaka City, Osaka, 577-8502, Japan
| | - Kanako Hagihara
- Laboratory of Molecular Pharmacogenomics, Department of Pharmaceutical Sciences, Kindai University, Higashiosaka City, Osaka, 577-8502, Japan
| | - Masahiro Inari
- Laboratory of Molecular Pharmacogenomics, Department of Pharmaceutical Sciences, Kindai University, Higashiosaka City, Osaka, 577-8502, Japan
| | - Ayako Kita
- Laboratory of Molecular Pharmacogenomics, Department of Pharmaceutical Sciences, Kindai University, Higashiosaka City, Osaka, 577-8502, Japan
| | - Akira Fukao
- Laboratory of Biochemistry, Department of Pharmacy, Kindai University, Higashiosaka City, Osaka, 577-8502, Japan
| | - Toshinobu Fujiwara
- Laboratory of Biochemistry, Department of Pharmacy, Kindai University, Higashiosaka City, Osaka, 577-8502, Japan
| | - Shinya Hirai
- Department of Biological Sciences Graduate School of Science and Technology, Kumamoto University, Kumamoto, Kumamoto, 860-8555, Japan
| | - Tokio Tani
- Department of Biological Sciences Graduate School of Science and Technology, Kumamoto University, Kumamoto, Kumamoto, 860-8555, Japan
| | - Reiko Sugiura
- Laboratory of Molecular Pharmacogenomics, Department of Pharmaceutical Sciences, Kindai University, Higashiosaka City, Osaka, 577-8502, Japan
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Ogata F, Satoh R, Kita A, Sugiura R, Kawasaki N. Evaluation of a novel method for measurement of intracellular calcium ion concentration in fission yeast. J Toxicol Sci 2017; 42:159-166. [PMID: 28321042 DOI: 10.2131/jts.42.159] [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: 11/02/2022]
Abstract
The distribution of metal and metalloid species in each of the cell compartments is termed as "metallome". It is important to elucidate the molecular mechanism underlying the beneficial or toxic effects exerted by a given metal or metalloid on human health. Therefore, we developed a method to measure intracellular metal ion concentration (particularly, intracellular calcium ion) in fission yeast. We evaluated the effects of nitric acid (HNO3), zymolyase, and westase treatment on cytolysis in fission yeast. Moreover, we evaluated the changes in the intracellular calcium ion concentration in fission yeast in response to treatment with/without micafungin. The fission yeast undergoes lysis when treated with 60% HNO3, which is simpler and cheaper compared to the other treatments. Additionally, the intracellular calcium ion concentration in 60% HNO3-treated fission yeast was determined by inductively coupled plasma atomic emission spectrometry. This study yields significant information pertaining to measurement of the intracellular calcium ion concentration in fission yeast, which is useful for elucidating the physiological or pathological functions of calcium ion in the biological systems. This study is the first step to obtain perspective view on the effect of the metallome in biological systems.
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Affiliation(s)
- Fumihiko Ogata
- Department of Public Health, Faculty of Pharmacy, Kindai University
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7
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Satoh R, Hagihara K, Kita A, Sugiura R. [The role of RNA granules as signaling hubs]. Nihon Yakurigaku Zasshi 2016; 147:340-345. [PMID: 27301307 DOI: 10.1254/fpj.147.340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
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8
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Kanda Y, Satoh R, Matsumoto S, Ikeda C, Inutsuka N, Hagihara K, Matzno S, Tsujimoto S, Kita A, Sugiura R. Skb5, an SH3 adaptor protein, regulates Pmk1 MAPK signaling by controlling the intracellular localization of Mkh1 MAPKKK. J Cell Sci 2016; 129:3189-202. [DOI: 10.1242/jcs.188854] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Accepted: 07/06/2016] [Indexed: 11/20/2022] Open
Abstract
The MAPK cascade is a highly conserved signaling module composed of MAPK/MAPKK/MAPKKK. MAPKKK Mkh1 is an initiating kinase in Pmk1 MAPK signaling, which regulates cell integrity in fission yeast. Our genetic screen for regulators of Pmk1 signaling identified Skb5 (Shk1 kinase binding protein 5), an SH3 domain-containing adaptor protein. Here, we showed that Skb5 serves as an inhibitor of Pmk1 MAPK signaling activation by downregulating Mkh1 localization to cell tips via its interaction with the SH3 domain. Consistently, the Mkh13PA mutant protein, with impaired Skb5 binding, remained in the cell tips, even when Skb5 was overproduced. Intriguingly, Skb5 needs Mkh1 to localize to the growing ends as Mkh1 deletion and disruption of Mkh1 binding impairs Skb5 localization. Deletion of Pck2, an upstream activator of Mkh1, impaired the cell tip localization of Mkh1 and Skb5 as well as Mkh1/Skb5 interaction. Interestingly, both Pck2 and Mkh1 localized to the cell tips at the G1/S phase, which coincided with Pmk1 MAPK activation. Altogether, Mkh1 localization to cell tips is important for transmitting upstream signaling to Pmk1 and Skb5 spatially regulates this process.
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Affiliation(s)
- Yuki Kanda
- Laboratory of Molecular Pharmacogenomics, School of Pharmaceutical Sciences, Kinki University, Japan
| | - Ryosuke Satoh
- Laboratory of Molecular Pharmacogenomics, School of Pharmaceutical Sciences, Kinki University, Japan
| | - Saki Matsumoto
- Laboratory of Molecular Pharmacogenomics, School of Pharmaceutical Sciences, Kinki University, Japan
| | - Chisato Ikeda
- Laboratory of Molecular Pharmacogenomics, School of Pharmaceutical Sciences, Kinki University, Japan
| | - Natsumi Inutsuka
- Laboratory of Molecular Pharmacogenomics, School of Pharmaceutical Sciences, Kinki University, Japan
| | - Kanako Hagihara
- Laboratory of Molecular Pharmacogenomics, School of Pharmaceutical Sciences, Kinki University, Japan
| | - Sumio Matzno
- Division of Pharmaceutical Education, Faculty of Pharmacy, Kinki University, Japan
| | - Sho Tsujimoto
- Laboratory of Molecular Pharmacogenomics, School of Pharmaceutical Sciences, Kinki University, Japan
| | - Ayako Kita
- Laboratory of Molecular Pharmacogenomics, School of Pharmaceutical Sciences, Kinki University, Japan
| | - Reiko Sugiura
- Laboratory of Molecular Pharmacogenomics, School of Pharmaceutical Sciences, Kinki University, Japan
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Satoh R, Hagihara K, Kita A, Sugiura R. [Spatial regulation of calcineurin by RNA granules]. Seikagaku 2015; 87:517-524. [PMID: 26638618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
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10
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Kinoshita N, Oguchi H, Kita A, Yoshioka C, Sasamoto K, Nishimoto Y, Adachi T, Shioura H, Kimura H. SU-E-T-204: Comparison of Absorbed-Dose to Water in High-Energy Photon Beams Based On Addendum AAPM TG-51, IAEA TRS-398, and JSMP 12. Med Phys 2015. [DOI: 10.1118/1.4924565] [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: 11/07/2022] Open
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11
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Doi A, Fujimoto A, Sato S, Uno T, Kanda Y, Asami K, Tanaka Y, Kita A, Satoh R, Sugiura R. Chemical genomics approach to identify genes associated with sensitivity to rapamycin in the fission yeastSchizosaccharomyces pombe. Genes Cells 2015; 20:292-309. [DOI: 10.1111/gtc.12223] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2014] [Accepted: 12/13/2014] [Indexed: 02/02/2023]
Affiliation(s)
- Akira Doi
- Laboratory of Molecular Pharmacogenomics; School of Pharmaceutical Sciences; Kinki University; Kowakae 3-4-1 Higashi-Osaka 577-8502 Japan
- Japan Society for the Promotion of Science; 1-8 Chiyoda-ku Tokyo 102-8472 Japan
| | - Ayumi Fujimoto
- Laboratory of Molecular Pharmacogenomics; School of Pharmaceutical Sciences; Kinki University; Kowakae 3-4-1 Higashi-Osaka 577-8502 Japan
| | - Shun Sato
- Laboratory of Molecular Pharmacogenomics; School of Pharmaceutical Sciences; Kinki University; Kowakae 3-4-1 Higashi-Osaka 577-8502 Japan
| | - Takaya Uno
- Laboratory of Molecular Pharmacogenomics; School of Pharmaceutical Sciences; Kinki University; Kowakae 3-4-1 Higashi-Osaka 577-8502 Japan
| | - Yuki Kanda
- Laboratory of Molecular Pharmacogenomics; School of Pharmaceutical Sciences; Kinki University; Kowakae 3-4-1 Higashi-Osaka 577-8502 Japan
| | - Keita Asami
- Laboratory of Molecular Pharmacogenomics; School of Pharmaceutical Sciences; Kinki University; Kowakae 3-4-1 Higashi-Osaka 577-8502 Japan
| | - Yuriko Tanaka
- Laboratory of Molecular Pharmacogenomics; School of Pharmaceutical Sciences; Kinki University; Kowakae 3-4-1 Higashi-Osaka 577-8502 Japan
| | - Ayako Kita
- Laboratory of Molecular Pharmacogenomics; School of Pharmaceutical Sciences; Kinki University; Kowakae 3-4-1 Higashi-Osaka 577-8502 Japan
| | - Ryosuke Satoh
- Laboratory of Molecular Pharmacogenomics; School of Pharmaceutical Sciences; Kinki University; Kowakae 3-4-1 Higashi-Osaka 577-8502 Japan
| | - Reiko Sugiura
- Laboratory of Molecular Pharmacogenomics; School of Pharmaceutical Sciences; Kinki University; Kowakae 3-4-1 Higashi-Osaka 577-8502 Japan
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Doi A, Kita A, Kanda Y, Uno T, Asami K, Satoh R, Nakano K, Sugiura R. Geranylgeranyltransferase Cwg2-Rho4/Rho5 module is implicated in the Pmk1 MAP kinase-mediated cell wall integrity pathway in fission yeast. Genes Cells 2015; 20:310-23. [DOI: 10.1111/gtc.12222] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2014] [Accepted: 12/15/2014] [Indexed: 11/27/2022]
Affiliation(s)
- Akira Doi
- Laboratory of Molecular Pharmacogenomics; School of Pharmaceutical Sciences; Kinki University; Kowakae 3-4-1 Higashi-Osaka 577-8502 Japan
- Japan Society for the Promotion of Science; 1-8 Chiyoda-ku Tokyo 102-8472 Japan
| | - Ayako Kita
- Laboratory of Molecular Pharmacogenomics; School of Pharmaceutical Sciences; Kinki University; Kowakae 3-4-1 Higashi-Osaka 577-8502 Japan
| | - Yuki Kanda
- Laboratory of Molecular Pharmacogenomics; School of Pharmaceutical Sciences; Kinki University; Kowakae 3-4-1 Higashi-Osaka 577-8502 Japan
| | - Takaya Uno
- Laboratory of Molecular Pharmacogenomics; School of Pharmaceutical Sciences; Kinki University; Kowakae 3-4-1 Higashi-Osaka 577-8502 Japan
| | - Keita Asami
- Laboratory of Molecular Pharmacogenomics; School of Pharmaceutical Sciences; Kinki University; Kowakae 3-4-1 Higashi-Osaka 577-8502 Japan
| | - Ryosuke Satoh
- Laboratory of Molecular Pharmacogenomics; School of Pharmaceutical Sciences; Kinki University; Kowakae 3-4-1 Higashi-Osaka 577-8502 Japan
| | - Kentaro Nakano
- Department of Biological Sciences; Graduate School of Life and Environmental Sciences; University of Tsukuba; 1-1-1 Tennohdai Tsukuba Ibaraki 305-8577 Japan
| | - Reiko Sugiura
- Laboratory of Molecular Pharmacogenomics; School of Pharmaceutical Sciences; Kinki University; Kowakae 3-4-1 Higashi-Osaka 577-8502 Japan
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Kita A, Higa M, Doi A, Satoh R, Sugiura R. Imp2, the PSTPIP homolog in fission yeast, affects sensitivity to the immunosuppressant FK506 and membrane trafficking in fission yeast. Biochem Biophys Res Commun 2015; 457:273-9. [PMID: 25580011 DOI: 10.1016/j.bbrc.2014.12.100] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [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: 12/13/2014] [Accepted: 12/22/2014] [Indexed: 11/18/2022]
Abstract
Cytokinesis is a highly ordered process that divides one cell into two cells, which is functionally linked to the dynamic remodeling of the plasma membrane coordinately with various events such as membrane trafficking. Calcineurin is a highly conserved serine/threonine protein phosphatase, which regulates multiple biological functions, such as membrane trafficking and cytokinesis. Here, we isolated imp2-c3, a mutant allele of the imp2(+) gene, encoding a homolog of the mouse PSTPIP1 (proline-serine-threonine phosphatase interacting protein 1), using a genetic screen for mutations that are synthetically lethal with calcineurin deletion in fission yeast. The imp2-c3 mutants showed a defect in cytokinesis with multi-septated phenotypes, which was further enhanced upon treatment with the calcineurin inhibitor FK506. Notably, electron micrographs revealed that the imp2-c3 mutant cells accumulated aberrant multi-lamella Golgi structures and putative post-Golgi secretory vesicles, and exhibited fragmented vacuoles in addition to thickened septa. Consistently, imp2-c3 mutants showed a reduced secretion of acid phosphatase and defects in vacuole fusion. The imp2-c3 mutant cells exhibited a weakened cell wall, similar to the membrane trafficking mutants identified in the same genetic screen such as ypt3-i5. These findings implicate the PSTPIP1 homolog Imp2 in Golgi/vacuole function, thereby affecting various cellular processes, including cytokinesis and cell integrity.
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Affiliation(s)
- Ayako Kita
- Laboratory of Molecular Pharmacogenomics, School of Pharmaceutical Sciences, Kinki University, 3-4-1 Kowakae, Higashi-Osaka 577-8502, Japan
| | - Mari Higa
- Laboratory of Molecular Pharmacogenomics, School of Pharmaceutical Sciences, Kinki University, 3-4-1 Kowakae, Higashi-Osaka 577-8502, Japan
| | - Akira Doi
- Laboratory of Molecular Pharmacogenomics, School of Pharmaceutical Sciences, Kinki University, 3-4-1 Kowakae, Higashi-Osaka 577-8502, Japan; Japan Society for the Promotion of Science, 1-8 Chiyoda-ku, Tokyo 102-8472, Japan
| | - Ryosuke Satoh
- Laboratory of Molecular Pharmacogenomics, School of Pharmaceutical Sciences, Kinki University, 3-4-1 Kowakae, Higashi-Osaka 577-8502, Japan
| | - Reiko Sugiura
- Laboratory of Molecular Pharmacogenomics, School of Pharmaceutical Sciences, Kinki University, 3-4-1 Kowakae, Higashi-Osaka 577-8502, Japan.
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14
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Higa M, Kita A, Hagihara K, Kitai Y, Doi A, Nagasoko R, Satoh R, Sugiura R. Spatial control of calcineurin in response to heat shock in fission yeast. Genes Cells 2014; 20:95-107. [DOI: 10.1111/gtc.12203] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2014] [Accepted: 10/08/2014] [Indexed: 11/29/2022]
Affiliation(s)
- Mari Higa
- Laboratory of Molecular Pharmacogenomics; School of Pharmaceutical Sciences; Kinki University; 3-4-1 Kowakae Higashi-Osaka Osaka 577-8502 Japan
| | - Ayako Kita
- Laboratory of Molecular Pharmacogenomics; School of Pharmaceutical Sciences; Kinki University; 3-4-1 Kowakae Higashi-Osaka Osaka 577-8502 Japan
| | - Kanako Hagihara
- Laboratory of Molecular Pharmacogenomics; School of Pharmaceutical Sciences; Kinki University; 3-4-1 Kowakae Higashi-Osaka Osaka 577-8502 Japan
| | - Yuki Kitai
- Laboratory of Molecular Pharmacogenomics; School of Pharmaceutical Sciences; Kinki University; 3-4-1 Kowakae Higashi-Osaka Osaka 577-8502 Japan
| | - Akira Doi
- Laboratory of Molecular Pharmacogenomics; School of Pharmaceutical Sciences; Kinki University; 3-4-1 Kowakae Higashi-Osaka Osaka 577-8502 Japan
| | - Rie Nagasoko
- Laboratory of Molecular Pharmacogenomics; School of Pharmaceutical Sciences; Kinki University; 3-4-1 Kowakae Higashi-Osaka Osaka 577-8502 Japan
| | - Ryosuke Satoh
- Laboratory of Molecular Pharmacogenomics; School of Pharmaceutical Sciences; Kinki University; 3-4-1 Kowakae Higashi-Osaka Osaka 577-8502 Japan
| | - Reiko Sugiura
- Laboratory of Molecular Pharmacogenomics; School of Pharmaceutical Sciences; Kinki University; 3-4-1 Kowakae Higashi-Osaka Osaka 577-8502 Japan
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15
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16
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Miedzianka J, Pęksa A, Pokora M, Rytel E, Tajner-Czopek A, Kita A. Improving the properties of fodder potato protein concentrate by enzymatic hydrolysis. Food Chem 2014; 159:512-8. [PMID: 24767090 DOI: 10.1016/j.foodchem.2014.03.054] [Citation(s) in RCA: 24] [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: 11/04/2013] [Revised: 03/06/2014] [Accepted: 03/11/2014] [Indexed: 11/28/2022]
Abstract
Protein hydrolysates of profitable properties were prepared from the fodder potato protein concentrate. The hydrolysis process was performed with the use of commercial available enzyme (Alcalase) over a 2 and 4 h incubation period. Chemical and amino acid composition as well as functional properties of resultant hydrolysates were determined. A 2 h long process occurred profitable to obtain preparations of well balanced amino acid composition as well as proved functional properties. The industrial preparation, modified within proteolytic enzyme, totally soluble (average 98%), was characterised by fivefold higher oil holding capacity (average 5.4 cm(3)/g) and much better foam capacity (more than 150%) as compared to the material underwent modification (13.00%, 2.1 cm(3)/g and 5.33%, respectively). Presented results suggested potential use of fodder potato protein not destined directly for food purposes as the suitable product for preparations characterised by high nutritive value and functional properties.
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Affiliation(s)
- J Miedzianka
- Department of Food Storage and Technology, Faculty of Food Science, Wroclaw University of Environmental and Life Sciences, Chełmońskiego Str. 37/41, 51-630 Wrocław, Poland.
| | - A Pęksa
- Department of Food Storage and Technology, Faculty of Food Science, Wroclaw University of Environmental and Life Sciences, Chełmońskiego Str. 37/41, 51-630 Wrocław, Poland
| | - M Pokora
- Department of Animal Products Technology and Quality Management, Faculty of Food Science, Wroclaw University of Environmental and Life Sciences, Chełmońskiego Str. 37/41, 51-630 Wrocław, Poland
| | - E Rytel
- Department of Food Storage and Technology, Faculty of Food Science, Wroclaw University of Environmental and Life Sciences, Chełmońskiego Str. 37/41, 51-630 Wrocław, Poland
| | - A Tajner-Czopek
- Department of Food Storage and Technology, Faculty of Food Science, Wroclaw University of Environmental and Life Sciences, Chełmońskiego Str. 37/41, 51-630 Wrocław, Poland
| | - A Kita
- Department of Food Storage and Technology, Faculty of Food Science, Wroclaw University of Environmental and Life Sciences, Chełmońskiego Str. 37/41, 51-630 Wrocław, Poland
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17
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Kajiwara A, Miyagawa H, Saruwatari J, Kita A, Sakata M, Kawata Y, Oniki K, Yoshida A, Jinnouchi H, Nakagawa K. Gender differences in the incidence and progression of diabetic retinopathy among Japanese patients with type 2 diabetes mellitus: a clinic-based retrospective longitudinal study. Diabetes Res Clin Pract 2014; 103:e7-10. [PMID: 24503044 DOI: 10.1016/j.diabres.2013.12.043] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2013] [Accepted: 12/28/2013] [Indexed: 12/21/2022]
Abstract
A clinic-based retrospective longitudinal study conducted for 5.8 ± 2.5 years, including 383 (M/F 245/138) Japanese patients with type 2 diabetes mellitus showed that females exhibit a significantly higher prevalence of proliferative diabetic retinopathy (DR) at baseline and that female gender is an independent risk factor for the development of DR.
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Affiliation(s)
- A Kajiwara
- Division of Pharmacology and Therapeutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan
| | - H Miyagawa
- Division of Pharmacology and Therapeutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan
| | - J Saruwatari
- Division of Pharmacology and Therapeutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan
| | - A Kita
- Division of Pharmacology and Therapeutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan
| | - M Sakata
- Division of Pharmacology and Therapeutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan
| | - Y Kawata
- Division of Pharmacology and Therapeutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan
| | - K Oniki
- Division of Pharmacology and Therapeutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan
| | - A Yoshida
- Jinnouchi Clinic, Diabetes Care Center, Kumamoto, Japan
| | - H Jinnouchi
- Jinnouchi Clinic, Diabetes Care Center, Kumamoto, Japan
| | - K Nakagawa
- Division of Pharmacology and Therapeutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan; Center for Clinical Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan.
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18
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Hagihara K, Mizukura A, Kitai Y, Yao M, Ishida K, Kita A, Kunoh T, Masuko T, Matzno S, Chiba K, Sugiura R. FTY720 stimulated ROS generation and the Sty1/Atf1 signaling pathway in the fission yeast Schizosaccharomyces pombe. Genes Cells 2014; 19:325-37. [PMID: 24506481 DOI: 10.1111/gtc.12134] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2013] [Accepted: 12/16/2013] [Indexed: 11/27/2022]
Abstract
Fingolimod hydrochloride (FTY720) is the first-in-class immune modulator known as sphingosine 1-phosphate (S1P) receptor agonists. FTY720 has also been reported to exert a variety of physiological functions such as antitumor effect, angiogenesis inhibition, and Ca2+ mobilization. Here, we show that FTY720 treatment induced reactive oxygen species (ROS) accumulation, and investigated the effect of FTY720 on the stress-activated MAP kinase Spc1/Sty1, a functional homologue of p38 MAPK, using a Renilla luciferase reporter construct fused to the CRE, which gives an accurate measure of the transcriptional activity of Atf1 and thus serves as a faithful readout of the Spc1/Sty1 MAPK signaling in response to oxidative stresses. FTY720 stimulated the CRE responses in a concentration-dependent manner, which was markedly reduced by deletion of the components of the Spc1/Sty1 MAPK pathway. The blockade of ROS production by NAC (N-acetyl-L-cysteine) significantly reversed the FTY720-induced ROS accumulation, subsequent activation of the Spc1/Sty1 MAPK pathway, and inhibition of cell proliferation. Cells lacking the components of the Spc1/Sty1 MAPK exhibited higher sensitivity to FTY720 and higher ROS levels upon FTY720 treatment than in wild-type cells. Thus, our results demonstrate the usefulness of fission yeast for elucidating the FTY720-mediated signaling pathways involving ROS.
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Affiliation(s)
- Kanako Hagihara
- Laboratory of Molecular Pharmacogenomics, School of Pharmaceutical Sciences, Kinki University, 3-4-1 Kowakae, Higashi-Osaka, 577-8502, Japan; Japan Society for the Promotion of Science, 1-8 Chiyoda-ku, Tokyo, 102-8472, Japan
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19
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Tsutsui N, Tanabe G, Gotoh G, Morita N, Nomura N, Kita A, Sugiura R, Muraoka O. Structure–activity relationship studies on acremomannolipin A, the potent calcium signal modulator with a novel glycolipid structure 2: Role of the alditol side chain stereochemistry. Bioorg Med Chem 2014; 22:945-59. [DOI: 10.1016/j.bmc.2013.12.052] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2013] [Revised: 12/20/2013] [Accepted: 12/21/2013] [Indexed: 11/30/2022]
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20
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Kita A, Yamada S, Ukai S, Takahashi S, Tsuji T, Iwatani J, Terada M, Shinosaki K. EPA-0443 – Changes of white matter integrity in the corpus callosum by rtms for treatment-resistant depression: a preliminary dti tractography study. Eur Psychiatry 2014. [DOI: 10.1016/s0924-9338(14)77862-9] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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21
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Kinoshita N, Takemura A, Toi A, Kita A, Nishimoto Y, Adachi T, Shioura H, Kimura H. PO-0791: Changes in absorbed dose to water for high-energy electron beams by beam quality correction factor. Radiother Oncol 2014. [DOI: 10.1016/s0167-8140(15)30909-9] [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: 10/23/2022]
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22
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Li C, Kita A, Hashimoto Y, Ihara M, Kato A, Ogura N, Doi A, Oku M, Itoh T, Sakai Y, Sugiura R. Functional link between Rab GTPase-mediated membrane trafficking and PI4,5P2signaling. Genes Cells 2013; 19:177-97. [DOI: 10.1111/gtc.12123] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2013] [Accepted: 11/11/2013] [Indexed: 01/31/2023]
Affiliation(s)
- Cuifang Li
- Laboratory of Molecular Pharmacogenomics; School of Pharmaceutical Sciences; Kinki University; Kowakae 3-4-1 Higashi-Osaka 577-8502 Japan
- Japan Society for the Promotion of Science; 1-8 Chiyoda-ku Tokyo 102-8472 Japan
| | - Ayako Kita
- Laboratory of Molecular Pharmacogenomics; School of Pharmaceutical Sciences; Kinki University; Kowakae 3-4-1 Higashi-Osaka 577-8502 Japan
| | - Yuuka Hashimoto
- Laboratory of Molecular Pharmacogenomics; School of Pharmaceutical Sciences; Kinki University; Kowakae 3-4-1 Higashi-Osaka 577-8502 Japan
| | - Misako Ihara
- Laboratory of Molecular Pharmacogenomics; School of Pharmaceutical Sciences; Kinki University; Kowakae 3-4-1 Higashi-Osaka 577-8502 Japan
| | - Ayaka Kato
- Laboratory of Molecular Pharmacogenomics; School of Pharmaceutical Sciences; Kinki University; Kowakae 3-4-1 Higashi-Osaka 577-8502 Japan
| | - Naoya Ogura
- Laboratory of Molecular Pharmacogenomics; School of Pharmaceutical Sciences; Kinki University; Kowakae 3-4-1 Higashi-Osaka 577-8502 Japan
| | - Akira Doi
- Laboratory of Molecular Pharmacogenomics; School of Pharmaceutical Sciences; Kinki University; Kowakae 3-4-1 Higashi-Osaka 577-8502 Japan
- Japan Society for the Promotion of Science; 1-8 Chiyoda-ku Tokyo 102-8472 Japan
| | - Masahide Oku
- Laboratory of Microbial Biotechnology; Division of Applied Life Sciences; Graduate School of Agriculture; Kyoto University; Kitashirakawa-Oiwake Sakyo-ku Kyoto 606-8502 Japan
| | - Toshiki Itoh
- Biosignal Research Center; Organization of Advanced Science and Technology; Kobe University; 1-1 Rokkodai-cho Nada-ku Kobe 657-8501 Japan
| | - Yasuyoshi Sakai
- Laboratory of Microbial Biotechnology; Division of Applied Life Sciences; Graduate School of Agriculture; Kyoto University; Kitashirakawa-Oiwake Sakyo-ku Kyoto 606-8502 Japan
| | - Reiko Sugiura
- Laboratory of Molecular Pharmacogenomics; School of Pharmaceutical Sciences; Kinki University; Kowakae 3-4-1 Higashi-Osaka 577-8502 Japan
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23
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Hagihara K, Kita A, Mizukura A, Yao M, Kitai Y, Kunoh T, Masuko T, Matzno S, Chiba K, Sugiura R. Fingolimod (FTY720) stimulates Ca(2+)/calcineurin signaling in fission yeast. PLoS One 2013; 8:e81907. [PMID: 24312601 PMCID: PMC3849299 DOI: 10.1371/journal.pone.0081907] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2013] [Accepted: 10/17/2013] [Indexed: 01/11/2023] Open
Abstract
Fingolimod hydrochloride (FTY720) is the first in class of sphingosine 1-phosphate (S1P) receptor modulator approved to treat multiple sclerosis via down-regulation of G protein-coupled S1P receptor 1 by its phosphorylated form (FTY720-P). Many studies have revealed that FTY720 exerts various biological effects, including antitumor activities, angiogenesis inhibition, Ca(2+) mobilization and apoptosis, independently of S1P receptors. However, the exact mechanisms underlying their effects or signaling pathways mediated by FTY720 have not been completely established. To gain further insights into molecular mechanisms of FTY720 action, the effect of FTY720 on Ca(2+) signaling in fission yeast was analyzed. The addition of Ca(2+) enhanced the sensitivity induced by FTY720, and mutants lacking genes required for calcium homeostasis, including calcineurin and its downstream transcription factor, Ppb1-responsive zinc finger protein (Prz1), were hypersensitive to FTY720 and CaCl2. The effect of FTY720 on calcineurin signaling was monitored by utilizing a luciferase reporter construct fused to three tandem repeats of the calcineurin-dependent response element (CDRE), which gives an accurate measure of calcineurin activity. The addition of FTY720 increased calcineurin activity as well as Ca(2+) influx in a concentration-dependent manner. Notably, the FTY720-mediated Ca(2+) influx and calcineurin activation were reduced markedly by the deletion of yam8 (+) or cch1 (+) encoding putative subunits of a Ca(2+) channel. Consistently, the deletion of Pmk1 mitogen-activated protein kinase (MAPK), which plays an important role in the activation of the Yam8/Cch1 channel, markedly decreased the intracellular Ca(2+) levels upon FTY720 treatment. These results suggest that the FTY720-stimulated Ca(2+)/calcineurin signaling activation partly involves the Yam8/Cch1 channel in fission yeast.
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Affiliation(s)
- Kanako Hagihara
- Laboratory of Molecular Pharmacogenomics, School of Pharmaceutical Sciences, Kinki University, Higashi-osaka, Japan
- Research Fellow of Japan Society for the Promotion of Science, 1-8 Chiyoda-ku, Tokyo, Japan
| | - Ayako Kita
- Laboratory of Molecular Pharmacogenomics, School of Pharmaceutical Sciences, Kinki University, Higashi-osaka, Japan
| | - Aya Mizukura
- Laboratory of Molecular Pharmacogenomics, School of Pharmaceutical Sciences, Kinki University, Higashi-osaka, Japan
| | - Mariko Yao
- Laboratory of Molecular Pharmacogenomics, School of Pharmaceutical Sciences, Kinki University, Higashi-osaka, Japan
| | - Yuki Kitai
- Laboratory of Molecular Pharmacogenomics, School of Pharmaceutical Sciences, Kinki University, Higashi-osaka, Japan
| | - Tatsuki Kunoh
- Laboratory of Molecular Pharmacogenomics, School of Pharmaceutical Sciences, Kinki University, Higashi-osaka, Japan
| | - Takashi Masuko
- Laboratory of Molecular Cell Biology, School of Pharmaceutical Sciences, Kinki University, Higashi-osaka, Japan
| | - Sumio Matzno
- Division of Pharmaceutical Education, Kinki University Faculty of Pharmacy 3-4-1, Kowakae, Higashi-Osaka, Osaka, Japan
| | - Kenji Chiba
- Advanced Medical Research Laboratories, Research Division, Mitsubishi Tanabe Pharma Corporation, Yokohama, Japan
| | - Reiko Sugiura
- Laboratory of Molecular Pharmacogenomics, School of Pharmaceutical Sciences, Kinki University, Higashi-osaka, Japan
- * E-mail:
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24
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Tsutsui N, Tanabe G, Gotoh G, Kita A, Sugiura R, Muraoka O. Stereoselective total synthesis of acremomannolipin A and its anomer, the potent calcium signal modulators with a novel glycolipid structure: role of the stereochemistry at the anomeric center on the activity. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.09.086] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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25
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Yu Y, Li C, Kita A, Katayama Y, Kubouchi K, Udo M, Imanaka Y, Ueda S, Masuko T, Sugiura R. Sip1, an AP-1 accessory protein in fission yeast, is required for localization of Rho3 GTPase. PLoS One 2013; 8:e68488. [PMID: 23840894 PMCID: PMC3698097 DOI: 10.1371/journal.pone.0068488] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2013] [Accepted: 05/29/2013] [Indexed: 11/18/2022] Open
Abstract
Rho family GTPases act as molecular switches to regulate a range of physiological functions, including the regulation of the actin-based cytoskeleton, membrane trafficking, cell morphology, nuclear gene expression, and cell growth. Rho function is regulated by its ability to bind GTP and by its localization. We previously demonstrated functional and physical interactions between Rho3 and the clathrin-associated adaptor protein-1 (AP-1) complex, which revealed a role of Rho3 in regulating Golgi/endosomal trafficking in fission yeast. Sip1, a conserved AP-1 accessory protein, recruits the AP-1 complex to the Golgi/endosomes through physical interaction. In this study, we showed that Sip1 is required for Rho3 localization. First, overexpression of rho3⁺ suppressed defective membrane trafficking associated with sip1-i4 mutant cells, including defects in vacuolar fusion, Golgi/endosomal trafficking and secretion. Notably, Sip1 interacted with Rho3, and GFP-Rho3, similar to Apm1-GFP, did not properly localize to the Golgi/endosomes in sip1-i4 mutant cells at 27°C. Interestingly, the C-terminal region of Sip1 is required for its localization to the Golgi/endosomes, because Sip1-i4-GFP protein failed to properly localize to Golgi/endosomes, whereas the fluorescence of Sip1ΔN mutant protein co-localized with that of FM4-64. Consistently, in the sip1-i4 mutant cells, which lack the C-terminal region of Sip1, binding between Apm1 and Rho3 was greatly impaired, presumably due to mislocalization of these proteins in the sip1-i4 mutant cells. Furthermore, the interaction between Apm1 and Rho3 as well as Rho3 localization to the Golgi/endosomes were significantly rescued in sip1-i4 mutant cells by the expression of Sip1ΔN. Taken together, these results suggest that Sip1 recruits Rho3 to the Golgi/endosomes through physical interaction and enhances the formation of the Golgi/endosome AP-1/Rho3 complex, thereby promoting crosstalk between AP-1 and Rho3 in the regulation of Golgi/endosomal trafficking in fission yeast.
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Affiliation(s)
- Yang Yu
- Laboratory of Molecular Pharmacogenomics, School of Pharmaceutical Sciences, Kinki University, Kowakae, Higashi-Osaka, Japan
| | - Cuifang Li
- Laboratory of Molecular Pharmacogenomics, School of Pharmaceutical Sciences, Kinki University, Kowakae, Higashi-Osaka, Japan
- Japan Society for the Promotion of Science, Tokyo, Japan
| | - Ayako Kita
- Laboratory of Molecular Pharmacogenomics, School of Pharmaceutical Sciences, Kinki University, Kowakae, Higashi-Osaka, Japan
| | - Yuta Katayama
- Laboratory of Molecular Pharmacogenomics, School of Pharmaceutical Sciences, Kinki University, Kowakae, Higashi-Osaka, Japan
| | - Koji Kubouchi
- Laboratory of Molecular Pharmacogenomics, School of Pharmaceutical Sciences, Kinki University, Kowakae, Higashi-Osaka, Japan
| | - Masako Udo
- Laboratory of Molecular Pharmacogenomics, School of Pharmaceutical Sciences, Kinki University, Kowakae, Higashi-Osaka, Japan
| | - Yukako Imanaka
- Laboratory of Molecular Pharmacogenomics, School of Pharmaceutical Sciences, Kinki University, Kowakae, Higashi-Osaka, Japan
| | - Shiho Ueda
- Laboratory of Molecular Cell Biology, School of Pharmaceutical Sciences, Kinki University, Kowakae, Higashi-Osaka, Japan
| | - Takashi Masuko
- Laboratory of Molecular Cell Biology, School of Pharmaceutical Sciences, Kinki University, Kowakae, Higashi-Osaka, Japan
| | - Reiko Sugiura
- Laboratory of Molecular Pharmacogenomics, School of Pharmaceutical Sciences, Kinki University, Kowakae, Higashi-Osaka, Japan
- * E-mail:
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26
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Kinoshita N, Takemura A, Nishimoto Y, Kita A, Toi A, Murai E, Adachi T, Shioura H. SU-E-T-108: Comparison of Absorbed-Dose to Water in High-Energy Photon Beams Due to Differences in Beam Quality Conversion Factor. Med Phys 2013. [DOI: 10.1118/1.4814543] [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: 11/07/2022] Open
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27
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Sugiura R, Kita A, Tsutsui N, Muraoka O, Hagihara K, Umeda N, Kunoh T, Takada H, Hirose D. Acremomannolipin A, the potential calcium signal modulator with a characteristic glycolipid structure from the filamentous fungus Acremonium strictum. Bioorg Med Chem Lett 2012; 22:6735-9. [DOI: 10.1016/j.bmcl.2012.08.085] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2012] [Revised: 08/11/2012] [Accepted: 08/22/2012] [Indexed: 01/26/2023]
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28
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Okamoto K, Okamoto I, Hatashita E, Kuwata K, Yamaguchi H, Kita A, Yamanaka K, Ono M, Nakagawa K. Overcoming Erlotinib Resistance in EGFR Mutation-Positive Non-Small-Cell Lung Cancer Cells by Targeting Survivin. Ann Oncol 2012. [DOI: 10.1016/s0923-7534(20)32199-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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29
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Numoto N, Kita A. Crystallization behaviors of protein molecules in high magnetic forces fields. Acta Crystallogr A 2012. [DOI: 10.1107/s0108767312097681] [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: 11/10/2022] Open
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30
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Tajner-Czopek A, Rytel E, Kita A, Pęksa A, Hamouz K. The influence of thermal process of coloured potatoes on the content of glycoalkaloids in the potato products. Food Chem 2012. [DOI: 10.1016/j.foodchem.2011.10.015] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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31
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Pytlakowska K, Kita A, Janoska P, Połowniak M, Kozik V. Multi-element analysis of mineral and trace elements in medicinal herbs and their infusions. Food Chem 2012; 135:494-501. [PMID: 22868119 DOI: 10.1016/j.foodchem.2012.05.002] [Citation(s) in RCA: 107] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2011] [Revised: 12/16/2011] [Accepted: 05/02/2012] [Indexed: 11/29/2022]
Abstract
Twelve mineral and trace elements (Al, B, Ba, Fe, Zn, Mn, Mg, K, Na, P, Cu, Sr, and Ca) were determined in the herbs and their infusions consumed for medical purposes in Poland such as chamomile (Matricaria chamomilla L.), peppermint (Mentha xpiperita), melissa (Melissa officinalis), sage (Salvia officinalis), nettle (Urtica dioica), linden (Tilia vulgaris) and St. John's wort (Hypericum calycinum). Dry digestion procedure for total concentration and wet digestion procedure for infusions were applied under optimized conditions for dissolution of medicinal herbs. Element concentrations in herbs and their infusions were determined by ICP-OES. The accuracy and precision were verified against NCS DC 73349 - bush branches and leaves certified reference material. The result of total concentrations of elements in herb leaves shows that all herbs contain most of the elements, except K and P, in the μg/g range, and that elemental concentrations varied widely. Moreover, on the basis of experimental results for the extraction efficiencies, the elements in herb infusions were classified into three specific groups: highly-extractable (>55%) including K; moderately-extractable (20-55%) including Mg, Na, P, B, Zn and Cu and poorly-extractable (<20%) including Al, Fe, Mn, Ba, Ca and Sr. The results of analysis were evaluated statistically using ANOVA one-way and three-way analysis of variance, variance correlation test and Spearman's test.
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Affiliation(s)
- K Pytlakowska
- Institute of Chemistry, University of Silesia, ul. Szkolna 9, 40-006 Katowice, Poland.
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32
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Satoh R, Tanaka A, Kita A, Morita T, Matsumura Y, Umeda N, Takada M, Hayashi S, Tani T, Shinmyozu K, Sugiura R. Role of the RNA-binding protein Nrd1 in stress granule formation and its implication in the stress response in fission yeast. PLoS One 2012; 7:e29683. [PMID: 22276125 PMCID: PMC3261880 DOI: 10.1371/journal.pone.0029683] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2011] [Accepted: 12/02/2011] [Indexed: 01/20/2023] Open
Abstract
We have previously identified the RNA recognition motif (RRM)-type RNA-binding protein Nrd1 as an important regulator of the posttranscriptional expression of myosin in fission yeast. Pmk1 MAPK-dependent phosphorylation negatively regulates the RNA-binding activity of Nrd1. Here, we report the role of Nrd1 in stress-induced RNA granules. Nrd1 can localize to poly(A)-binding protein (Pabp)-positive RNA granules in response to various stress stimuli, including heat shock, arsenite treatment, and oxidative stress. Interestingly, compared with the unphosphorylatable Nrd1, Nrd1DD (phosphorylation-mimic version of Nrd1) translocates more quickly from the cytoplasm to the stress granules in response to various stimuli; this suggests that the phosphorylation of Nrd1 by MAPK enhances its localization to stress-induced cytoplasmic granules. Nrd1 binds to Cpc2 (fission yeast RACK) in a phosphorylation-dependent manner and deletion of Cpc2 affects the formation of Nrd1-positive granules upon arsenite treatment. Moreover, the depletion of Nrd1 leads to a delay in Pabp-positive RNA granule formation, and overexpression of Nrd1 results in an increased size and number of Pabp-positive granules. Interestingly, Nrd1 deletion induced resistance to sustained stresses and enhanced sensitivity to transient stresses. In conclusion, our results indicate that Nrd1 plays a role in stress-induced granule formation, which affects stress resistance in fission yeast.
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Affiliation(s)
- Ryosuke Satoh
- Laboratory of Molecular Pharmacogenomics, School of Pharmaceutical Sciences, Kinki University, Osaka, Japan
- Japan Society for the Promotion of Science, Tokyo, Japan
| | - Akitomo Tanaka
- Laboratory of Molecular Pharmacogenomics, School of Pharmaceutical Sciences, Kinki University, Osaka, Japan
| | - Ayako Kita
- Laboratory of Molecular Pharmacogenomics, School of Pharmaceutical Sciences, Kinki University, Osaka, Japan
| | - Takahiro Morita
- Laboratory of Molecular Pharmacogenomics, School of Pharmaceutical Sciences, Kinki University, Osaka, Japan
| | - Yasuhiro Matsumura
- Laboratory of Molecular Pharmacogenomics, School of Pharmaceutical Sciences, Kinki University, Osaka, Japan
| | - Nanae Umeda
- Laboratory of Molecular Pharmacogenomics, School of Pharmaceutical Sciences, Kinki University, Osaka, Japan
| | - Makoto Takada
- Laboratory of Molecular Pharmacogenomics, School of Pharmaceutical Sciences, Kinki University, Osaka, Japan
| | - Sachiko Hayashi
- Department of Biological Sciences, Graduate School of Science and Technology, Kumamoto University, Kumamoto, Japan
| | - Tokio Tani
- Department of Biological Sciences, Graduate School of Science and Technology, Kumamoto University, Kumamoto, Japan
| | - Kaori Shinmyozu
- Proteomics Support Unit, RIKEN Center for Developmental Biology, Hyogo, Japan
| | - Reiko Sugiura
- Laboratory of Molecular Pharmacogenomics, School of Pharmaceutical Sciences, Kinki University, Osaka, Japan
- * E-mail:
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Morita T, Satoh R, Umeda N, Kita A, Sugiura R. The stress granule protein Vgl1 and poly(A)-binding protein Pab1 are required for doxorubicin resistance in the fission yeast Schizosaccharomyces pombe. Biochem Biophys Res Commun 2011; 417:399-403. [PMID: 22172946 DOI: 10.1016/j.bbrc.2011.11.127] [Citation(s) in RCA: 8] [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] [Subscribe] [Scholar Register] [Received: 11/19/2011] [Accepted: 11/29/2011] [Indexed: 10/14/2022]
Abstract
Doxorubicin is an anthracycline antibiotic widely used for chemotherapy. Although doxorubicin is effective in the treatment of several cancers, including solid tumors and leukemias, the basis of its mechanism of action is not completely understood. Here, we describe the effects of doxorubicin and its relationship with stress granules formation in the fission yeast, Schizosaccharomyces pombe. We show that disruption of genes encoding the components of stress granules, including vgl1(+), which encodes a multi-KH type RNA-binding protein, and pab1(+), which encodes a poly(A)-binding protein, resulted in greater sensitivity to doxorubicin than seen in wild-type cells. Disruption of the vgl1(+) and pab1(+) genes did not confer sensitivity to other anti-cancer drugs such as cisplatin, 5-fluorouracil, and paclitaxel. We also showed that doxorubicin treatment promoted stress granule formation when combined with heat shock. Notably, doxorubicin treatment did not induce hyperphosphorylation of eIF2α, suggesting that doxorubicin is involved in stress granule assembly independent of eIF2α phosphorylation. Our results demonstrate the usefulness of fission yeast for elucidating the molecular targets of doxorubicin toxicity and suggest a novel drug-resistance mechanism involving stress granule assembly.
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Affiliation(s)
- Takahiro Morita
- Laboratory of Molecular Pharmacogenomics, School of Pharmaceutical Sciences, Kinki University, Higashi-Osaka, Japan
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Numoto N, Kuranaga T, Nagamatsu Y, Hasegawa Y, Kita A, Takeda K, Miki K. Crystal structure and nucleotide bound states of V 1-ATPase. Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311093421] [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: 11/11/2022] Open
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Kita A, Jimbo M, Morimoto Y, Sakai R, Kamiya H, Miki K. Crystal structures of symbiosis related lectin and its saccharide bound form. Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311083917] [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: 11/10/2022] Open
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Malicka E, Sitko R, Zawisza B, Heimann J, Kajewski D, Kita A. Nondestructive analysis of single crystals of selenide spinels by X-ray spectrometry techniques. Anal Bioanal Chem 2011; 399:3285-92. [PMID: 20924565 PMCID: PMC3044239 DOI: 10.1007/s00216-010-4240-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2010] [Revised: 09/20/2010] [Accepted: 09/21/2010] [Indexed: 11/21/2022]
Abstract
The paper presents possibilities and difficulties in nondestructive analysis of small multielement single crystals performed by means of X-ray spectrometry techniques: micro-X-ray fluorescence spectrometry (μ-XRF), energy-dispersive electron probe microanalysis (ED-EPMA), and X-ray photoelectron spectroscopy (XPS). The capability of the X-ray spectroscopy techniques in elemental analysis is demonstrated with the single crystals of selenide spinels of the general formula MxNyCrzSe4 (M+2 and N+3 are, for example, Zn+2, V+3, Ga+3, Cd+2, In+3, and Sb+3). The results of the nondestructive analyses (μ-XRF, ED-EPMA, and XPS) are compared with those obtained by inductively coupled plasma optical emission spectrometry (ICP-OES) and wavelength-dispersive X-ray spectrometry (WDXRF) following sample digestion. The present study shows satisfactory agreement between the results of μ-XRF analysis performed using the standardless fundamental parameter method and the results obtained with the WDXRF and ICP-OES analyses. If the measured single crystal is precisely positioned, the difference between μ-XRF and wet analysis (WDXRF and ICP-OES) does not exceed 5% rel. The reliable results of ED-EPMA can be obtained only if the measured area is sufficiently large, i.e., of 200 × 300 μm. Even if this condition is fulfilled, the relative difference between the ED-EPMA and the wet analysis may reach 10% rel. In case of the XPS analysis, the accuracy of results depends on the proper preparation of the sample surface. It should be free of contamination that can be obtained by scraping in situ in ultrahigh vacuum. The ion etching, commonly used for cleaning the surface, leads to preferential sputtering; therefore, the reliable results cannot be obtained. The paper presents possibilities and difficulties in nondestructive analysis of small multielement single crystals performed by means of X-ray spectrometry techniques: micro-XRF, ED-EPMA and XPS. ![]()
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Kita A, Li C, Yu Y, Umeda N, Doi A, Yasuda M, Ishiwata S, Taga A, Horiuchi Y, Sugiura R. Role of the Small GTPase Rho3 in Golgi/Endosome trafficking through functional interaction with adaptin in Fission Yeast. PLoS One 2011; 6:e16842. [PMID: 21304827 PMCID: PMC3033427 DOI: 10.1371/journal.pone.0016842] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2010] [Accepted: 01/14/2011] [Indexed: 01/08/2023] Open
Abstract
Background We had previously identified the mutant allele of apm1+ that encodes a homolog of the mammalian µ1A subunit of the clathrin-associated adaptor protein-1 (AP-1) complex, and we demonstrated the role of Apm1 in Golgi/endosome trafficking, secretion, and vacuole fusion in fission yeast. Methodology/Principal Findings In the present study, we isolated rho3+, which encodes a Rho-family small GTPase, an important regulator of exocystosis, as a multicopy-suppressor of the temperature-sensitive growth of the apm1-1 mutant cells. Overexpression of Rho3 suppressed the Cl− sensitivity and immunosuppressant sensitivity of the apm1-1 mutant cells. Overexpression of Rho3 also suppressed the fragmentation of vacuoles, and the accumulation of v-SNARE Syb1 in Golgi/endosomes and partially suppressed the defective secretion associated with apm1-deletion cells. Notably, electron microscopic observation of the rho3-deletion cells revealed the accumulation of abnormal Golgi-like structures, vacuole fragmentation, and accumulation of secretory vesicles; these phenotypes were very similar to those of the apm1-deletion cells. Furthermore, the rho3-deletion cells and apm1-deletion cells showed very similar phenotypic characteristics, including the sensitivity to the immunosuppressant FK506, the cell wall-damaging agent micafungin, Cl−, and valproic acid. Green fluorescent protein (GFP)-Rho3 was localized at Golgi/endosomes as well as the plasma membrane and division site. Finally, Rho3 was shown to form a complex with Apm1 as well as with other subunits of the clathrin-associated AP-1 complex in a GTP- and effector domain-dependent manner. Conclusions/Significance Taken together, our findings reveal a novel role of Rho3 in the regulation of Golgi/endosome trafficking and suggest that clathrin-associated adaptor protein-1 and Rho3 co-ordinate in intracellular transport in fission yeast. To the best of our knowledge, this study provides the first evidence of a direct link between the small GTPase Rho and the clathrin-associated adaptor protein-1 in membrane trafficking.
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Affiliation(s)
- Ayako Kita
- Laboratory of Molecular Pharmacogenomics, School of Pharmaceutical Sciences, Kinki University, Higashi-Osaka, Japan
| | - Cuifang Li
- Laboratory of Molecular Pharmacogenomics, School of Pharmaceutical Sciences, Kinki University, Higashi-Osaka, Japan
| | - Yang Yu
- Laboratory of Molecular Pharmacogenomics, School of Pharmaceutical Sciences, Kinki University, Higashi-Osaka, Japan
| | - Nanae Umeda
- Laboratory of Molecular Pharmacogenomics, School of Pharmaceutical Sciences, Kinki University, Higashi-Osaka, Japan
| | - Akira Doi
- Laboratory of Molecular Pharmacogenomics, School of Pharmaceutical Sciences, Kinki University, Higashi-Osaka, Japan
| | - Mitsuko Yasuda
- Laboratory of Molecular Pharmacogenomics, School of Pharmaceutical Sciences, Kinki University, Higashi-Osaka, Japan
| | - Shunji Ishiwata
- Laboratory of Molecular Pharmacogenomics, School of Pharmaceutical Sciences, Kinki University, Higashi-Osaka, Japan
| | - Atsushi Taga
- Laboratory of Pharmaceutical Analytical Chemistry, School of Pharmaceutical Sciences, Kinki University, Higashi-Osaka, Japan
| | | | - Reiko Sugiura
- Laboratory of Molecular Pharmacogenomics, School of Pharmaceutical Sciences, Kinki University, Higashi-Osaka, Japan
- * E-mail:
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Iwasa T, Okamoto I, Takezawa K, Yamanaka K, Nakahara T, Kita A, Koutoku H, Sasamata M, Hatashita E, Yamada Y, Kuwata K, Fukuoka M, Nakagawa K. Marked anti-tumour activity of the combination of YM155, a novel survivin suppressant, and platinum-based drugs. Br J Cancer 2010; 103:36-42. [PMID: 20517311 PMCID: PMC2905296 DOI: 10.1038/sj.bjc.6605713] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND Survivin, a member of the inhibitor of apoptosis protein family, is an attractive target for cancer therapy. We have now investigated the effects of the combination of YM155, a novel small-molecule inhibitor of survivin expression, and platinum compounds (cisplatin and carboplatin) on human non-small cell lung cancer (NSCLC) cell lines. METHODS The anti-cancer efficacy of YM155 in combination with platinum compounds was evaluated on the basis of cell death and progression of tumour xenografts. Platinum compound-induced DNA damage was evaluated by immunofluorescence analysis of histone gamma-H2AX. RESULTS Immunofluorescence analysis of histone gamma-H2AX showed that YM155 delayed the repair of double-strand breaks induced in nuclear DNA by platinum compounds. The combination of YM155 and platinum compounds also induced synergistic increases both in the number of apoptotic cells and in the activity of caspase-3. Finally, combination therapy with YM155 and platinum compounds delayed the growth of NSCLC tumour xenografts in nude mice to an extent greater than that apparent with either treatment modality alone. CONCLUSION These results suggest that YM155 sensitises tumour cells to platinum compounds both in vitro and in vivo, and that this effect is likely attributable to the inhibition of DNA repair and consequent enhancement of apoptosis.
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Affiliation(s)
- T Iwasa
- Department of Medical Oncology, Kinki University School of Medicine, 377-2 Ohno-higashi, Osaka-Sayama, Osaka 589-8511, Japan
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Mitsuoka K, Miyoshi S, Kita A, Yamanaka K, Nakata M, Murakami Y, Noda A, Jitsuoka M, Fushiki H, Nishimura S. Effect of YM155, a potent survivin suppressant, on the antitumor effect of rituximab in diffuse large B-cell lymphoma (DLBCL) xenograft models: FLT-/FDG-PET imaging studies. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.8087] [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: 11/20/2022] Open
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Kaneko N, Yamanaka K, Kita A, Nakata M, Koutoku H, Sasamata M. Antitumor activity of YM155, a novel survivin suppressant, in combination with docetaxel against malignant melanoma cells. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.e13621] [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: 11/20/2022] Open
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Takada H, Nishida A, Domae M, Kita A, Yamano Y, Uchida A, Ishiwata S, Fang Y, Zhou X, Masuko T, Kinoshita M, Kakehi K, Sugiura R. The cell surface protein gene ecm33+ is a target of the two transcription factors Atf1 and Mbx1 and negatively regulates Pmk1 MAPK cell integrity signaling in fission yeast. Mol Biol Cell 2009; 21:674-85. [PMID: 20032302 PMCID: PMC2820430 DOI: 10.1091/mbc.e09-09-0810] [Citation(s) in RCA: 30] [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: 11/11/2022] Open
Abstract
The highly conserved fission yeast Pmk1 MAPK pathway plays a key role in cell integrity by regulating Atf1, which belongs to the ATF/cAMP-responsive element-binding (CREB) protein family. We identified and characterized ecm33(+), which encodes a glycosyl-phosphatidylinositol (GPI)-anchored cell surface protein as a transcriptional target of Pmk1 and Atf1. We demonstrated that the gene expression of Ecm33 is regulated by two transcription factors Atf1 and a MADS-box-type transcription factor Mbx1. We identified a putative ATF/CREB-binding site and an RLM1-binding site in the ecm33(+) promoter region and monitored the transcriptional activity of Atf1 or Mbx1 in living cells using a destabilized luciferase reporter gene fused to three tandem repeats of the CRE and six tandem repeats of the Rlm1-binding sequence, respectively. These reporter genes reflect the activation of the Pmk1 pathway by various stimuli, thereby enabling the real-time monitoring of the Pmk1 cell integrity pathway. Notably, the Deltaecm33 cells displayed hyperactivation of the Pmk1 signaling together with hypersensitivity to Ca(2+) and an abnormal morphology, which were almost abolished by simultaneous deletion of the components of the Rho2/Pck2/Pmk1 pathway. Our results suggest that Ecm33 is involved in the negative feedback regulation of Pmk1 cell integrity signaling and is linked to cellular Ca(2+) signaling.
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Affiliation(s)
- Hirofumi Takada
- Laboratory of Molecular Pharmacogenomics, Laboratory of Molecular and Cellular Biology, and Laboratory of Bioinformatics, School of Pharmaceutical Sciences, Kinki University, Higashi-Osaka, 577-8502, Japan
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Satoh R, Takada H, Kita A, Sugiura R. [Regulation of RNA-binding proteins by MAPK signaling]. Tanpakushitsu Kakusan Koso 2009; 54:2207-2212. [PMID: 21089642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
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Krompiec S, Penczek R, Krompiec M, Pluta T, Ignasiak H, Kita A, Michalik S, Matlengiewicz M, Filapek M. Transition Metals for Conjugation of Polyunsaturated Acids and their Esters. CURR ORG CHEM 2009. [DOI: 10.2174/138527209788452117] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Fang Y, Imagawa K, Zhou X, Kita A, Sugiura R, Jaiseng W, Kuno T. Pleiotropic phenotypes caused by an opal nonsense mutation in an essential gene encoding HMG-CoA reductase in fission yeast. Genes Cells 2009; 14:759-71. [PMID: 19486165 DOI: 10.1111/j.1365-2443.2009.01308.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Schizosaccharomyces pombe genome contains an essential gene hmg1(+) encoding the sterol biosynthetic enzyme, 3-hydroxy-3-methylglutaryl coenzyme A reductase (HMGR). Here, we isolated an allele of the hmg1(+) gene, hmg1-1/its12, as a mutant that showed sensitivities to high temperature and to FK506, a calcineurin inhibitor. The hmg1-1 allele contained an opal nonsense mutation in its N-terminal transmembrane domain, yet in spite of the mutation a full-length protein was produced, suggesting a read-through termination codon. Consistently, overexpression of the hmg1-1 mutant gene suppressed the mutant phenotypes. The hmg1-1 mutant showed hypersensitivity to pravastatin, an HMGR inhibitor, suggesting a defective HMGR activity. The mutant treated with FK506 caused dramatic morphological changes and showed defects in cell wall integrity, as well as displayed synthetic growth phenotypes with the mutant alleles of genes involved in cytokinesis and cell wall integrity. The mutant exhibited different phenotypes from those of the disruption mutants of ergosterol biosynthesis genes, and it showed normal filipin staining as well as showed normal subcellular localization of small GTPases. These data suggest that the pleiotropic phenotypes reflect the integrated effects of the reduced availability of ergosterol and various intermediates of the mevalonate pathway.
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Affiliation(s)
- Yue Fang
- Division of Molecular Pharmacology and Pharmacogenomics, Department of Biochemistry and Molecular Biology, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe 650-0017, Japan.
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Satoh R, Morita T, Takada H, Kita A, Ishiwata S, Doi A, Hagihara K, Taga A, Matsumura Y, Tohda H, Sugiura R. Role of the RNA-binding protein Nrd1 and Pmk1 mitogen-activated protein kinase in the regulation of myosin mRNA stability in fission yeast. Mol Biol Cell 2009; 20:2473-85. [PMID: 19279143 DOI: 10.1091/mbc.e08-09-0893] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Myosin II is an essential component of the actomyosin contractile ring and plays a crucial role in cytokinesis by generating the forces necessary for contraction of the actomyosin ring. Cdc4 is an essential myosin II light chain in fission yeast and is required for cytokinesis. In various eukaryotes, the phosphorylation of myosin is well documented as a primary means of activating myosin II, but little is known about the regulatory mechanisms of Cdc4. Here, we isolated Nrd1, an RNA-binding protein with RNA-recognition motifs, as a multicopy suppressor of cdc4 mutants. Notably, we demonstrated that Nrd1 binds and stabilizes Cdc4 mRNA, thereby suppressing the cytokinesis defects of the cdc4 mutants. Importantly, Pmk1 mitogen-activated protein kinase (MAPK) directly phosphorylates Nrd1, thereby negatively regulating the binding activity of Nrd1 to Cdc4 mRNA. Consistently, the inactivation of Pmk1 MAPK signaling, as well as Nrd1 overexpression, stabilized the Cdc4 mRNA level, thereby suppressing the cytokinesis defects associated with the cdc4 mutants. In addition, we demonstrated the cell cycle-dependent regulation of Pmk1/Nrd1 signaling. Together, our results indicate that Nrd1 plays a role in the regulation of Cdc4 mRNA stability; moreover, our study is the first to demonstrate the posttranscriptional regulation of myosin expression by MAPK signaling.
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Affiliation(s)
- Ryosuke Satoh
- Laboratory of Molecular Pharmacogenomics, and Laboratory of Pharmaceutical Analytical Chemistry, School of Pharmaceutical Sciences, Kinki University, Higashi-Osaka 577-8502, Japan
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Mori M, Shindoh N, Amino N, Kita A, Terada Y, Taniguchi M, Sohda K, Sowa Y, Sakai T, Sasamata M. 340 POSTER Anti-tumor activity of YM753, a histone deacetylase inhibitor, against hormone refractory prostate cancer. EJC Suppl 2008. [DOI: 10.1016/s1359-6349(08)72274-2] [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: 10/21/2022] Open
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Numoto N, Nakagawa T, Kita A, Sasayama Y, Fukumori Y, Miki K. Ligand-induced structural changes of giant hemoglobin. Acta Crystallogr A 2008. [DOI: 10.1107/s0108767308099546] [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: 11/11/2022] Open
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48
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Kita A, Jimbo M, Morimoto Y, Sakai R, Kamiya H, Miki K. Crystal structure of a lectin from the octocoral. Acta Crystallogr A 2008. [DOI: 10.1107/s0108767308089186] [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: 11/10/2022] Open
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49
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Miki K, Watanabe S, Kita A, Kobayashi K. Crystal structure of the [2Fe-2S] transcriptional activator SoxR bound to DNA. Acta Crystallogr A 2008. [DOI: 10.1107/s0108767308097122] [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: 11/11/2022] Open
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50
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Iwaki T, Onishi M, Ikeuchi M, Kita A, Sugiura R, Giga-Hama Y, Fukui Y, Takegawa K. Essential roles of class E Vps proteins for sorting into multivesicular bodies in Schizosaccharomyces pombe. Microbiology (Reading) 2007; 153:2753-2764. [PMID: 17660439 PMCID: PMC2885615 DOI: 10.1099/mic.0.2007/006072-0] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The multivesicular body (MVB) sorting pathway is required for a number of biological processes, including downregulation of cell-surface proteins and protein sorting into the vacuolar lumen. The function of this pathway requires endosomal sorting complexes required for transport (ESCRT) composed of class E vacuolar protein sorting (Vps) proteins in Saccharomyces cerevisiae, many of which are conserved in Schizosaccharomyces pombe. Of these, sst4/vps27 (homologous to VPS27) and sst6 (similar to VPS23) have been identified as suppressors of sterility in ste12Delta (sst), although their functions have not been uncovered to date. In this report, these two sst genes are shown to be required for vacuolar sorting of carboxypeptidase Y (CPY) and an MVB marker, the ubiquitin-GFP-carboxypeptidase S (Ub-GFP-CPS) fusion protein, despite the lack of the ubiquitin E2 variant domain in Sst6p. Disruption mutants of a variety of other class E vps homologues also had defects in sorting of CPY and Ub-GFP-CPS. Sch. pombe has a mammalian AMSH homologue, sst2. Phenotypic analyses suggested that Sst2p is a class E Vps protein. Taken together, these results suggest that sorting into multivesicular bodies is dependent on class E Vps proteins, including Sst2p, in Sch. pombe.
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Affiliation(s)
- Tomoko Iwaki
- Department of Life Sciences, Faculty of Agriculture, Kagawa University, Miki-cho, Kagawa 761-0795, Japan
- Research Center, Asahi Glass Co. Ltd, Kanagawa, Yokohama 221-8755, Japan
| | - Masayuki Onishi
- Laboratory of Biological Chemistry, Graduate School of Agricultural and Life Science, University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Masaru Ikeuchi
- Department of Life Sciences, Faculty of Agriculture, Kagawa University, Miki-cho, Kagawa 761-0795, Japan
| | - Ayako Kita
- Laboratory of Molecular Pharmacogenomics, School of Pharmaceutical Sciences, Kinki University, Kowakae 3-4-1, Higashi-Osaka 577-8502, Japan
| | - Reiko Sugiura
- Laboratory of Molecular Pharmacogenomics, School of Pharmaceutical Sciences, Kinki University, Kowakae 3-4-1, Higashi-Osaka 577-8502, Japan
| | - Yuko Giga-Hama
- Research Center, Asahi Glass Co. Ltd, Kanagawa, Yokohama 221-8755, Japan
| | - Yasuhisa Fukui
- Laboratory of Biological Chemistry, Graduate School of Agricultural and Life Science, University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Kaoru Takegawa
- Department of Life Sciences, Faculty of Agriculture, Kagawa University, Miki-cho, Kagawa 761-0795, Japan
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