76
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Kinoshita T, Tamura K, Hashimoto A, Ogura T, Hironaka A, Arai S, Asanabe M. P098 Scalp cooling system to prevent hair loss in breast cancer patients receiving chemotherapy. Breast 2015. [DOI: 10.1016/s0960-9776(15)70142-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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77
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Ohkubo S, Muraoka H, Kodama Y, Ito K, Ito S, Hashimoto A, Yoshimura C, Utsugi T. 592 TAS-116, a highly selective inhibitor of heat shock protein 90a/β, inhibits tumor growth in biliary tract cancer mouse models. Eur J Cancer 2014. [DOI: 10.1016/s0959-8049(14)70718-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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78
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Cao J, Liu L, Hashimoto A, Ye J. Hematite photo-electrodes with multiple ultrathin SiOx interlayers towards enhanced photoelectrochemical properties. Electrochem commun 2014. [DOI: 10.1016/j.elecom.2014.07.030] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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79
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Ogo N, Sawada J, Ishikawa Y, Matsuno K, Hashimoto A, Asai A. 274 Novel cysteine derivatives for the next generation anticancer agents acting on KSP. Eur J Cancer 2014. [DOI: 10.1016/s0959-8049(14)70400-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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80
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Kato M, Miyadera K, Ito K, Aoyagi Y, Hashimoto A, Yonekura K, Iwasawa Y, Utsugi T. 401 TAS-121, a highly potent and mutant-specific EGFR inhibitor, overcomes T790M-acquired resistance with promising antitumor activity through specific inhibition of mutant EGFR signaling. Eur J Cancer 2014. [DOI: 10.1016/s0959-8049(14)70527-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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81
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Gomori A, Sakuragi M, Hashimoto A, Ito K, Haruma T, Suzuki T, Fujita H, Fujioka Y, Yonekura K, Utsugi T. 515 TAS-115, a potent MET/VEGFR-targeted kinase inhibitor, is a new therapeutic approach for the treatment of bone metastasis of lung cancer. Eur J Cancer 2014. [DOI: 10.1016/s0959-8049(14)70641-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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82
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Nakatsuru Y, Hashimoto A, Sootome H, Ito K, Sakuragi M, Miura A, Oda N, Hirai H, Utsugi T. 398 TAS-119 a selective inhibitor of Aurora A kinase, potentiates taxane therapy in breast and lung cancer models. Eur J Cancer 2014. [DOI: 10.1016/s0959-8049(14)70524-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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83
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Yoshida CA, Kawane T, Moriishi T, Purushothaman A, Miyazaki T, Komori H, Mori M, Qin X, Hashimoto A, Sugahara K, Yamana K, Takada K, Komori T. Overexpression of Galnt3 in chondrocytes resulted in dwarfism due to the increase of mucin-type O-glycans and reduction of glycosaminoglycans. J Biol Chem 2014; 289:26584-26596. [PMID: 25107907 PMCID: PMC4176229 DOI: 10.1074/jbc.m114.555987] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2014] [Revised: 08/04/2014] [Indexed: 11/06/2022] Open
Abstract
Galnt3, UDP-N-acetyl-α-D-galactosamine:polypeptide N-acetylgalactosaminyltransferase 3, transfers N-acetyl-D-galactosamine to serine and threonine residues, initiating mucin type O-glycosylation of proteins. We searched the target genes of Runx2, which is an essential transcription factor for chondrocyte maturation, in chondrocytes and found that Galnt3 expression was up-regulated by Runx2 and severely reduced in Runx2(-/-) cartilaginous skeletons. To investigate the function of Galnt3 in chondrocytes, we generated Galnt3(-/-) mice and chondrocyte-specific Galnt3 transgenic mice under the control of the Col2a1 promoter-enhancer. Galnt3(-/-) mice showed a delay in endochondral ossification and shortened limbs at embryonic day 16.5, suggesting that Galnt3 is involved in chondrocyte maturation. Galnt3 transgenic mice presented dwarfism, the chondrocyte maturation was retarded, the cell cycle in chondrocytes was accelerated, premature chondrocyte apoptosis occurred, and the growth plates were disorganized. The binding of Vicia villosa agglutinin, which recognizes the Tn antigen (GalNAc-O-Ser/Thr), was drastically increased in chondrocytes, and aggrecan (Acan) was highly enriched with Tn antigen. However, safranin O staining, which recognizes glycosaminoglycans (GAGs), and Acan were severely reduced. Chondroitin sulfate was reduced in amount, but the elongation of chondroitin sulfate chains had not been severely disturbed in the isolated GAGs. These findings indicate that overexpression of Galnt3 in chondrocytes caused dwarfism due to the increase of mucin-type O-glycans and the reduction of GAGs, probably through competition with xylosyltransferases, which initiate GAG chains by attaching O-linked xylose to serine residues, suggesting a negative effect of Galnt family proteins on Acan deposition in addition to the positive effect of Galnt3 on chondrocyte maturation.
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84
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Kambe T, Hashimoto A, Fujimoto S. Current understanding of ZIP and ZnT zinc transporters in human health and diseases. Cell Mol Life Sci 2014; 71:3281-95. [PMID: 24710731 PMCID: PMC11113243 DOI: 10.1007/s00018-014-1617-0] [Citation(s) in RCA: 153] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2014] [Revised: 03/13/2014] [Accepted: 03/20/2014] [Indexed: 12/14/2022]
Abstract
Zinc transporters, the Zrt-, Irt-like protein (ZIP) family and the Zn transporter (ZnT) family transporters, are found in all aspects of life. Increasing evidence has clarified the molecular mechanism, in which both transporters play critical roles in cellular and physiological functions via mobilizing zinc across the cellular membrane. In the last decade, mutations in ZIP and ZnT transporter genes have been shown to be implicated in a number of inherited human diseases. Moreover, dysregulation of expression and activity of both transporters has been suggested to be involved in the pathogenesis and progression of chronic diseases including cancer, immunological impairment, and neurodegenerative diseases, although comprehensive understanding is far from complete. The diverse phenotypes of diseases related to ZIP and ZnT transporters reflect the multifarious biological functions of both transporters. The present review summarizes the current understanding of ZIP and ZnT transporter functions from the standpoint of human health and diseases. The study of zinc transporters is currently of great clinical interest.
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85
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Yamamoto T, Yoshizawa N, Fuke H, Hashimoto A, Sugimoto K, Shiraki K, Shimizu A. Education and imaging. Gastrointestinal: Spontaneous rupture of the pancreaticoduodenal artery from segmental arterial mediolysis. J Gastroenterol Hepatol 2014; 29:1129. [PMID: 24832780 DOI: 10.1111/jgh.12603] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
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86
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Furukawa H, Kawasaki A, Oka S, Shimada K, Matsui T, Ikenaka T, Hashimoto A, Okazaki Y, Takaoka H, Futami H, Komiya A, Kondo Y, Ito S, Hayashi T, Matsumoto I, Kusaoi M, Takasaki Y, Nagai T, Hirohata S, Setoguchi K, Suda A, Nagaoka S, Kono H, Okamoto A, Chiba N, Suematsu E, Fukui N, Hashimoto H, Sumida T, Ono M, Tsuchiya N, Tohma S. Association of a single nucleotide polymorphism in the SH2D1A intronic region with systemic lupus erythematosus. Lupus 2014; 22:497-503. [PMID: 23554038 DOI: 10.1177/0961203313479421] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
SH2D1A, also known as signaling lymphocytic activation molecule (SLAM)-associated protein (SAP), is an adaptor protein. Recently, it was reported that SAP deficient mice were protected from systemic lupus erythematosus (SLE). In this study, we postulated SH2D1A gene to be a candidate susceptibility gene for SLE and analyzed its association with SLE. A case-control association study was conducted on 5 tag single nucleotide polymorphisms (SNPs) in SH2D1A region in 506 Japanese female SLE patients and 330 healthy female controls. The luciferase assay was performed to determine the functional role of the SNP associated with SLE. One SNP in the intron 2, rs2049995, showed association with SLE (p=0.0110, odds ratio (OR) 1.97, 95% confidence interval (CI) 1.16-3.34, under the dominant model). The association of rs2049995 seemed to be stronger in the subset with the age of onset less than 20 years (p=0.0067, OR 2.65, 95% CI 1.28-5.46). Functional evaluation of rs2049995 showed that reporter gene activity was increased 1.9-fold for the susceptible allele compared with the resistant allele. An intronic SNP of SH2D1A is associated with SLE.
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87
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Kamihara Y, Fujimi A, Kanisawa Y, Okuda T, Uemura N, Minami S, Doi T, Hashimoto A, Ishikawa K, Matsuno T. Diffuse Intrasinusoidal Liver Metastasis of Pancreatic Carcinoma Causing Fulminant Hepatic Failure. Ann Oncol 2013. [DOI: 10.1093/annonc/mdt460.161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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88
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Wang P, D’Alfonso AJ, Hashimoto A, Morgan AJ, Takeguchi M, Mitsuishi K, Shimojo M, Kirkland AI, Allen LJ, Nellist PD. Contrast in atomically resolved EF-SCEM imaging. Ultramicroscopy 2013; 134:185-92. [DOI: 10.1016/j.ultramic.2013.06.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2013] [Revised: 06/15/2013] [Accepted: 06/15/2013] [Indexed: 11/26/2022]
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89
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Kawamukai M, Koyama M, Nishida J, Kouzu H, Muranaka A, Kokubu N, Yuda S, Hashimoto A, Tsuchihashi K, Miura T. Prognostic evaluation of patients with pulmonary hypertension by combined non-invasive assessment of pulmonary vascular resistance and right ventricular function. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht307.p326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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90
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Shimoshige S, Mochizuki A, Nishida J, Kouzu H, Kokubu N, Muranaka A, Yuda S, Hashimoto A, Tsuchihashi K, Miura T. Para-Hisian pacing enabled separate assessments of bundle branch conduction and ventricular myocardium conduction, disclosing distinct determinants. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht310.p5593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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91
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Matsui T, Nishino J, Kuga Y, Tsuno H, Hashimoto A, Tohma S. SAT0116 Being underweight is associated with high disease activity and increased risk for hospitalization in patients with rheumatoid arthritis. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.3063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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92
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Arinuma Y, Matsui T, Komiya A, Nogi S, Iwata K, Futami H, Takaoka H, Hashimoto A, Nakayama H, Tohma S. FRI0140 The clinical utility of CD64 expression on neutrophil in acute-onset interstitial lung damage complicated in patients with rheumatoid arthritis. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.2597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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93
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Kinoshita R, Nam J, Hosoda M, K. C, Tanino M, Hashimoto A, Ito YM, Tanaka S, Sabe H, Shirato H. Co-overexpression of GEP100 With EGFR Correlates With Early Recurrence After Breast Conservation Therapy (BCT). Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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94
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Hashimoto A, Takeguchi M. In situ observation of Pt nanoparticles on graphene layers under high temperature using aberration-corrected transmission electron microscopy. Microscopy (Oxf) 2012; 61:409-13. [DOI: 10.1093/jmicro/dfs060] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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95
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Zhang X, Takeguchi M, Hashimoto A, Mitsuishi K, Tezuka M, Shimojo M. Improvement of depth resolution of ADF-SCEM by deconvolution: effects of electron energy loss and chromatic aberration on depth resolution. MICROSCOPY AND MICROANALYSIS : THE OFFICIAL JOURNAL OF MICROSCOPY SOCIETY OF AMERICA, MICROBEAM ANALYSIS SOCIETY, MICROSCOPICAL SOCIETY OF CANADA 2012; 18:603-611. [PMID: 22494464 DOI: 10.1017/s1431927612000062] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Scanning confocal electron microscopy (SCEM) is a new imaging technique that is capable of depth sectioning with nanometer-scale depth resolution. However, the depth resolution in the optical axis direction (Z) is worse than might be expected on the basis of the vertical electron probe size calculated with the existence of spherical aberration. To investigate the origin of the degradation, the effects of electron energy loss and chromatic aberration on the depth resolution of annular dark-field SCEM were studied through both experiments and computational simulations. The simulation results obtained by taking these two factors into consideration coincided well with those obtained by experiments, which proved that electron energy loss and chromatic aberration cause blurs at the overfocus sides of the Z-direction intensity profiles rather than degrade the depth resolution much. In addition, a deconvolution method using a simulated point spread function, which combined two Gaussian functions, was adopted to process the XZ-slice images obtained both from experiments and simulations. As a result, the blurs induced by energy loss and chromatic aberration were successfully removed, and there was also about 30% improvement in the depth resolution in deconvoluting the experimental XZ-slice image.
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96
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Zhang X, Takeguchi M, Hashimoto A, Mitsuishi K, Wang P, Nellist PD, Kirkland AI, Tezuka M, Shimojo M. Three-dimensional observation of SiO2 hollow spheres with a double-shell structure using aberration-corrected scanning confocal electron microscopy. Microscopy (Oxf) 2012; 61:159-69. [DOI: 10.1093/jmicro/dfs039] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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97
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Kondo-Okamoto N, Noda NN, Suzuki SW, Nakatogawa H, Takahashi I, Matsunami M, Hashimoto A, Inagaki F, Ohsumi Y, Okamoto K. Autophagy-related protein 32 acts as autophagic degron and directly initiates mitophagy. J Biol Chem 2012; 287:10631-10638. [PMID: 22308029 PMCID: PMC3323008 DOI: 10.1074/jbc.m111.299917] [Citation(s) in RCA: 95] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2011] [Revised: 01/30/2012] [Indexed: 12/22/2022] Open
Abstract
Autophagy-related degradation selective for mitochondria (mitophagy) is an evolutionarily conserved process that is thought to be critical for mitochondrial quality and quantity control. In budding yeast, autophagy-related protein 32 (Atg32) is inserted into the outer membrane of mitochondria with its N- and C-terminal domains exposed to the cytosol and mitochondrial intermembrane space, respectively, and plays an essential role in mitophagy. Atg32 interacts with Atg8, a ubiquitin-like protein localized to the autophagosome, and Atg11, a scaffold protein required for selective autophagy-related pathways, although the significance of these interactions remains elusive. In addition, whether Atg32 is the sole protein necessary and sufficient for initiation of autophagosome formation has not been addressed. Here we show that the Atg32 IMS domain is dispensable for mitophagy. Notably, when anchored to peroxisomes, the Atg32 cytosol domain promoted autophagy-dependent peroxisome degradation, suggesting that Atg32 contains a module compatible for other organelle autophagy. X-ray crystallography reveals that the Atg32 Atg8 family-interacting motif peptide binds Atg8 in a conserved manner. Mutations in this binding interface impair association of Atg32 with the free form of Atg8 and mitophagy. Moreover, Atg32 variants, which do not stably interact with Atg11, are strongly defective in mitochondrial degradation. Finally, we demonstrate that Atg32 forms a complex with Atg8 and Atg11 prior to and independent of isolation membrane generation and subsequent autophagosome formation. Taken together, our data implicate Atg32 as a bipartite platform recruiting Atg8 and Atg11 to the mitochondrial surface and forming an initiator complex crucial for mitophagy.
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98
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Komiya A, Matsui T, Nogi S, Iwata K, Futami H, Takaoka H, Arinuma Y, Hashimoto A, Shimada K, Ikenaka T, Nakayama H, Furukawa H, Tohma S. Neutrophil CD64 is upregulated in patients with active adult-onset Still's disease. Scand J Rheumatol 2012; 41:156-8. [DOI: 10.3109/03009742.2011.644325] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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99
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Okuda M, Ogawa N, Takeguchi M, Hashimoto A, Tagaya M, Chen S, Hanagata N, Ikoma T. Minerals and aligned collagen fibrils in tilapia fish scales: structural analysis using dark-field and energy-filtered transmission electron microscopy and electron tomography. MICROSCOPY AND MICROANALYSIS : THE OFFICIAL JOURNAL OF MICROSCOPY SOCIETY OF AMERICA, MICROBEAM ANALYSIS SOCIETY, MICROSCOPICAL SOCIETY OF CANADA 2011; 17:788-798. [PMID: 21899811 DOI: 10.1017/s1431927611011949] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The mineralized structure of aligned collagen fibrils in a tilapia fish scale was investigated using transmission electron microscopy (TEM) techniques after a thin sample was prepared using aqueous techniques. Electron diffraction and electron energy loss spectroscopy data indicated that a mineralized internal layer consisting of aligned collagen fibrils contains hydroxyapatite crystals. Bright-field imaging, dark-field imaging, and energy-filtered TEM showed that the hydroxyapatite was mainly distributed in the hole zones of the aligned collagen fibrils structure, while needle-like materials composed of calcium compounds including hydroxyapatite existed in the mineralized internal layer. Dark-field imaging and three-dimensional observation using electron tomography revealed that hydroxyapatite and needle-like materials were mainly found in the matrix between the collagen fibrils. It was observed that hydroxyapatite and needle-like materials were preferentially distributed on the surface of the hole zones in the aligned collagen fibrils structure and in the matrix between the collagen fibrils in the mineralized internal layer of the scale.
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100
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Hashimoto A, Mitsuishi K, Shimojo M, Zhu Y, Takeguchi M. Experimental examination of the characteristics of bright-field scanning confocal electron microscopy images. JOURNAL OF ELECTRON MICROSCOPY 2011; 60:227-234. [PMID: 21486860 DOI: 10.1093/jmicro/dfr013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
We experimentally examined the characteristics of bright-field (BF) scanning confocal electron microscopy (SCEM) images by changing the observation conditions and comparing the images with those obtained by BF transmission electron microscopy (TEM) and BF scanning TEM (STEM) modes. The observation of 5-nm-diameter Au nanoparticles demonstrated that BF-SCEM produces object elongation of more than 2000 nm along the optical axis, as do BF-TEM and BF-STEM. We demonstrated the relationship between elongation length and geometric effects such as convergence and collection angles of a probe and the lateral size of an object; the relationship is consistent with previous theoretical prediction. Further, we observed interesting features that are seen only in the BF-SCEM images; the film contrast was strongly enhanced, compared with that of BF-STEM. In addition, a bright contrast appeared around the object position in the elongated images. Using this characteristic, we could determine the object position and structure.
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