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Liu J, Isaji T, Komatsu S, Sun Y, Xu X, Fukuda T, Fujimura T, Takahashi S, Gu J. BRCC36 associates with FLT3-ITD to regulate its protein stability and intracellular signaling in acute myeloid leukemia. Cancer Sci 2024; 115:1196-1208. [PMID: 38288901 PMCID: PMC11007003 DOI: 10.1111/cas.16090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 12/25/2023] [Accepted: 01/14/2024] [Indexed: 04/12/2024] Open
Abstract
Fms-like tyrosine kinase-3 (FLT3) is a commonly mutated gene in acute myeloid leukemia (AML). The two most common mutations are the internal-tandem duplication domain (ITD) mutation and the tyrosine kinase domain (TKD) mutation. FLT3-ITD and FLT3-TKD exhibit distinct protein stability, cellular localization, and intracellular signaling. To understand the underlying mechanisms, we performed proximity labeling with TurboID to identify proteins that regulate FLT3-ITD or -TKD differently. We found that BRCA1/BRCA2-containing complex subunit 36 (BRCC36), a specific K63-linked polyubiquitin deubiquitinase, was exclusively associated with ITD, not the wild type of FLT3 and TKD. Knockdown of BRCC36 resulted in decreased signal transducers and activators of transcription 5 phosphorylation and cell proliferation in ITD cells. Consistently, treatment with thiolutin, an inhibitor of BRCC36, specifically suppressed cell proliferation and induced cell apoptosis in ITD cells. Thiolutin efficiently affected leukemia cell lines expressing FLT3-ITD cell viability and exhibited mutual synergies with quizartinib, a standard clinical medicine for AML. Furthermore, mutation of the lysine at 609 of ITD led to significant suppression of K63 polyubiquitination and decreased its stability, suggesting that K609 is a critical site for K63 ubiquitination specifically recognized by BRCC36. These data indicate that BRCC36 is a specific regulator for FLT3-ITD, which may shed light on developing a novel therapeutic approach for AML.
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Affiliation(s)
- Jianwei Liu
- Division of Regulatory Glycobiology, Institute of Molecular Biomembrane and GlycobiologyTohoku Medical and Pharmaceutical UniversitySendaiMiyagiJapan
| | - Tomoya Isaji
- Division of Regulatory Glycobiology, Institute of Molecular Biomembrane and GlycobiologyTohoku Medical and Pharmaceutical UniversitySendaiMiyagiJapan
| | - Sachiko Komatsu
- Division of Bioanalytical ChemistryTohoku Medical and Pharmaceutical UniversitySendaiMiyagiJapan
| | - Yuhan Sun
- Division of Regulatory Glycobiology, Institute of Molecular Biomembrane and GlycobiologyTohoku Medical and Pharmaceutical UniversitySendaiMiyagiJapan
| | - Xing Xu
- Division of Regulatory Glycobiology, Institute of Molecular Biomembrane and GlycobiologyTohoku Medical and Pharmaceutical UniversitySendaiMiyagiJapan
| | - Tomohiko Fukuda
- Division of Regulatory Glycobiology, Institute of Molecular Biomembrane and GlycobiologyTohoku Medical and Pharmaceutical UniversitySendaiMiyagiJapan
| | - Tsutomu Fujimura
- Division of Bioanalytical ChemistryTohoku Medical and Pharmaceutical UniversitySendaiMiyagiJapan
| | - Shinichiro Takahashi
- Division of Laboratory Medicine, Faculty of MedicineTohoku Medical and Pharmaceutical UniversitySendaiMiyagiJapan
| | - Jianguo Gu
- Division of Regulatory Glycobiology, Institute of Molecular Biomembrane and GlycobiologyTohoku Medical and Pharmaceutical UniversitySendaiMiyagiJapan
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Pan S, Manabe N, Ohno S, Komatsu S, Fujimura T, Yamaguchi Y. Each N-glycan on human IgA and J-chain uniquely affects oligomericity and stability. Biochim Biophys Acta Gen Subj 2024; 1868:130536. [PMID: 38070292 DOI: 10.1016/j.bbagen.2023.130536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2023] [Revised: 11/24/2023] [Accepted: 11/30/2023] [Indexed: 01/03/2024]
Abstract
BACKGROUND Immunoglobulin A (IgA) plays a pivotal role in various immune responses, especially that of mucosal immunity. IgA is usually assembled into dimers with the contribution of J-chains. There are two N-glycosylation sites in human IgA1-Fc and one in the J-chain. There is no consensus as yet on the functional role of the N-glycosylation. METHODS To gain a better understanding of their role, we designed a series of IgA1-Fc mutants, which were expressed in the absence or presence of the J-chain. RESULTS IgA1-Fc without the J-chain, was predominantly expressed as a monomer, and in its presence dimers and some polymers appeared. N263 (Fc Cα2), N459 (Fc tailpiece) and N49 (J-chain) were shown to be site-specifically modified with N-glycans by mass spectrometry analysis. Mutant IgA1-Fc N459Q failed to form a proper dimer in the presence of the J-chain, instead higher-order aggregates appeared. Fluorescence experiments suggest that the N459-glycans cover a hydrophobic surface at the Fc tailpiece that prevents other Fc molecules from approaching the dimeric IgA. A thermofluor assay revealed that the N-glycans at N263 (Fc) and N49 (J-chain) both contribute in different ways to the thermal stability of the Fc-J-chain complex. NMR analysis of 13C-labeled Fc suggests that the N459-glycan is relatively flexible while the N263-glycan is more rigid. CONCLUSIONS We conclude that the N459-glycan of IgA1-Fc is essential for dimer formation and prevention of higher-order aggregates while those at N263 (Fc) and N49 (J-chain) stabilize the Fc-J-chain complex. GENERAL SIGNIFICANCE Site-specific role for N-glycan in molecular assembly is addressed.
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Affiliation(s)
- Shunli Pan
- Division of Structural Glycobiology, Institute of Molecular Biomembrane and Glycobiology, Tohoku Medical and Pharmaceutical University, 4-4-1 Komatsushima, Aoba-ku, Sendai 981-8558, Miyagi, Japan
| | - Noriyoshi Manabe
- Division of Structural Glycobiology, Institute of Molecular Biomembrane and Glycobiology, Tohoku Medical and Pharmaceutical University, 4-4-1 Komatsushima, Aoba-ku, Sendai 981-8558, Miyagi, Japan
| | - Shiho Ohno
- Division of Structural Glycobiology, Institute of Molecular Biomembrane and Glycobiology, Tohoku Medical and Pharmaceutical University, 4-4-1 Komatsushima, Aoba-ku, Sendai 981-8558, Miyagi, Japan
| | - Sachiko Komatsu
- Division of Bioanalytical Chemistry, Tohoku Medical and Pharmaceutical University, 4-4-1 Komatsushima, Aoba-ku, Sendai 981-8558, Miyagi, Japan
| | - Tsutomu Fujimura
- Division of Bioanalytical Chemistry, Tohoku Medical and Pharmaceutical University, 4-4-1 Komatsushima, Aoba-ku, Sendai 981-8558, Miyagi, Japan
| | - Yoshiki Yamaguchi
- Division of Structural Glycobiology, Institute of Molecular Biomembrane and Glycobiology, Tohoku Medical and Pharmaceutical University, 4-4-1 Komatsushima, Aoba-ku, Sendai 981-8558, Miyagi, Japan.
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3
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Ono T, Sato F, Kumano M, Komatsu S, Sugiyama K, Watanabe K, Yoshida K, Sasano Y, Fujimura T, Iwabuchi Y, Kashiwagi Y, Sato K. Determination of antibiotics by amperometry using nortropine N-oxyl, a highly active nitroxyl radical. ANAL SCI 2023; 39:1771-1775. [PMID: 37378820 DOI: 10.1007/s44211-023-00388-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Accepted: 06/14/2023] [Indexed: 06/29/2023]
Abstract
Nitroxyl radical compounds oxidize hydroxy groups and some amino groups upon application of an electric potential. The resulting anodic current depends on the concentration of these functional groups in solution. Thus, it is possible to quantify compounds containing these functional groups by electrochemical methods. Cyclic voltammetry has been used to evaluate the catalytic activity of nitroxyl radicals, and the ability of such radicals to sense biological and other compounds. In this study, we evaluated a method for quantifying compounds using constant-potential electrolysis (amperometry) of nitroxyl radicals for application in flow injection analysis and high-performance liquid chromatography as an electrochemical detector. When amperometry was performed using 2,2,6,6-tetramethylpiperidine 1-oxyl, a common nitroxyl radical compound, little change was observed even with 100 mM glucose due to its low reactivity in neutral aqueous solutions. In contrast, 2-azaadamantane N-oxyl and nortropine N-oxyl, which are highly active nitroxyl radicals, showed a concentration-dependent response in neutral aqueous solution. Responses of 33.8 and 125.9 μA, respectively, were observed. By recognition of hydroxy and amino groups, we have succeeded in the electrochemical detection of some drugs by amperometry. Streptomycin, an aminoglycoside antibiotic, was quantifiable in the range of 30-1000 µM.
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Affiliation(s)
- Tetsuya Ono
- School of Pharmaceutical Sciences, Ohu University, 31-1 Misumido, Tomita-machi, Koriyama, Fukushima, 963-8611, Japan.
| | - Fumiya Sato
- Faculty of Pharmaceutical Science, Tohoku Medical and Pharmaceutical University, 4-4-1 Komatsushima, Aoba, Sendai, Miyagi, 981-8558, Japan
| | - Masayuki Kumano
- Faculty of Pharmaceutical Science, Tohoku Medical and Pharmaceutical University, 4-4-1 Komatsushima, Aoba, Sendai, Miyagi, 981-8558, Japan
| | - Sachiko Komatsu
- Faculty of Pharmaceutical Science, Tohoku Medical and Pharmaceutical University, 4-4-1 Komatsushima, Aoba, Sendai, Miyagi, 981-8558, Japan
| | - Kyoko Sugiyama
- Faculty of Pharmaceutical Science, Tohoku Medical and Pharmaceutical University, 4-4-1 Komatsushima, Aoba, Sendai, Miyagi, 981-8558, Japan
| | - Kazuhiro Watanabe
- Faculty of Pharmaceutical Science, Tohoku Medical and Pharmaceutical University, 4-4-1 Komatsushima, Aoba, Sendai, Miyagi, 981-8558, Japan
| | - Kentaro Yoshida
- School of Pharmaceutical Sciences, Ohu University, 31-1 Misumido, Tomita-machi, Koriyama, Fukushima, 963-8611, Japan
| | - Yusuke Sasano
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai, 980-8578, Japan
| | - Tsutomu Fujimura
- Faculty of Pharmaceutical Science, Tohoku Medical and Pharmaceutical University, 4-4-1 Komatsushima, Aoba, Sendai, Miyagi, 981-8558, Japan
| | - Yoshiharu Iwabuchi
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai, 980-8578, Japan
| | - Yoshitomo Kashiwagi
- School of Pharmaceutical Sciences, Ohu University, 31-1 Misumido, Tomita-machi, Koriyama, Fukushima, 963-8611, Japan
| | - Katsuhiko Sato
- Faculty of Pharmaceutical Science, Tohoku Medical and Pharmaceutical University, 4-4-1 Komatsushima, Aoba, Sendai, Miyagi, 981-8558, Japan.
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Kumano M, Sugiyama K, Sato F, Komatsu S, Watanabe K, Ono T, Yoshida K, Sasano Y, Iwabuchi Y, Fujimura T, Kashiwagi Y, Sato K. Electrochemical reactions of highly active nitroxyl radicals with thiol compounds. ANAL SCI 2023; 39:369-374. [PMID: 36576651 DOI: 10.1007/s44211-022-00246-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Accepted: 12/13/2022] [Indexed: 12/29/2022]
Abstract
Nitroxyl radicals are known to electrochemically oxidize thiols as well as alcohols and amines. In this study, a preliminary investigation of the electrochemical reaction of thiols with 9-azabicyclo[3.3.1]nonane N-oxyl (ABNO), 2-azaadamantane N-oxyl (AZADO), and nortropine N-oxyl (NNO), which are highly active due to their bicyclo structures, for use in electrochemical analysis was performed and the results were compared with those for a typical nitroxyl radical compound, 2,2,6,6-tetramethylpiperidine N-oxyl (TEMPO). Mercaptopropane sulfonic acid (MPS) was used as a model compound to investigate the electrochemical response in aqueous solution. In addition, electrochemical detection of glutathione, a biological thiol molecule, was performed.
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Affiliation(s)
- Masayuki Kumano
- Faculty of Pharmaceutical Science, Tohoku Medical and Pharmaceutical University, 4-4-1 Komatsushima, Aoba, Sendai, Miyagi, 981-8558, Japan
| | - Kyoko Sugiyama
- Faculty of Pharmaceutical Science, Tohoku Medical and Pharmaceutical University, 4-4-1 Komatsushima, Aoba, Sendai, Miyagi, 981-8558, Japan
| | - Fumiya Sato
- Faculty of Pharmaceutical Science, Tohoku Medical and Pharmaceutical University, 4-4-1 Komatsushima, Aoba, Sendai, Miyagi, 981-8558, Japan
| | - Sachiko Komatsu
- Faculty of Pharmaceutical Science, Tohoku Medical and Pharmaceutical University, 4-4-1 Komatsushima, Aoba, Sendai, Miyagi, 981-8558, Japan
| | - Kazuhiro Watanabe
- Faculty of Pharmaceutical Science, Tohoku Medical and Pharmaceutical University, 4-4-1 Komatsushima, Aoba, Sendai, Miyagi, 981-8558, Japan
| | - Tetsuya Ono
- School of Pharmaceutical Sciences, Ohu University, 31-1 Misumido, Tomita-Machi, Koriyama, Fukushima, 963-8611, Japan
| | - Kentaro Yoshida
- School of Pharmaceutical Sciences, Ohu University, 31-1 Misumido, Tomita-Machi, Koriyama, Fukushima, 963-8611, Japan
| | - Yusuke Sasano
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai, 980-8578, Japan
| | - Yoshiharu Iwabuchi
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai, 980-8578, Japan
| | - Tsutomu Fujimura
- Faculty of Pharmaceutical Science, Tohoku Medical and Pharmaceutical University, 4-4-1 Komatsushima, Aoba, Sendai, Miyagi, 981-8558, Japan
| | - Yoshitomo Kashiwagi
- School of Pharmaceutical Sciences, Ohu University, 31-1 Misumido, Tomita-Machi, Koriyama, Fukushima, 963-8611, Japan.
| | - Katsuhiko Sato
- Faculty of Pharmaceutical Science, Tohoku Medical and Pharmaceutical University, 4-4-1 Komatsushima, Aoba, Sendai, Miyagi, 981-8558, Japan.
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Komatsu S, Takahashi S, Yutani C, Iwa N, Takewa M, Noda H, Ohara T, Kodama K. Diversity in the characteristics of spontaneous ruptured aortic plaques. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1954] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Spontaneous ruptured aortic plaques (SRAPs) act as emboli for systemic organs because SRAPs might contain CCs which cause inflammation besides mechanical obstruction. The purpose of the study is to clarify the difference of the characteristics of representative SRAPs, puff rupture and puff-chandelier rupture sampled by non-obstructive general angioscopy. (NOGA)
Methods
A total of 177 puff-chandelier ruptures which blown out spontaneously and glittered against the light of the angioscopic fiber and 105 puff ruptures which did not glitter were sampled by NOGA in patients having or suspected coronary artery disease. Sampled plaques were analyzed two kinds of methods, conventional Hematoxylin-eosin stain and methods without solvents. Samples were diagnosed if the component of atheroma was detected with either method. The percentage of content of CCs, the number of CCs, the longer and shorter diameters were compared between blood sampled from puff and puff-chandelier rupture.
Results
Samples were diagnosed as atheroma 56% of puff-chandelier rupture and 27% of puff- rupture. (p<0.0001) Higher number of CCs was included in puff-chandelier rupture than in puff-rupture. (12,955 [3,977, 25,795] vs. 3,182 [909, 7,273]) The longer and shorter diameters of plaque components of puff rupture were smaller than those of puff-chandelier rupture. (p=0.0259 and p=0.0286, respectively.) CCs were tended to be included puff-chandelier rupture than puff-rupture. (53% vs. 16%, respectively; p<0.0001) Visible debris was obtained only 13% of puff rupture and 26% of puff-chandelier rupture.
Conclusions
Diversity of SRAPs were shown as that puff rupture had less CCs and more fibrin than puff-chandelier rupture, suggesting that potentially less inflammation and more fibrinolytic.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- S Komatsu
- Osaka Gyoumeikan Hospital , Osaka , Japan
| | | | - C Yutani
- Morinomiya University of Medical Sciences, Department of Medical Technology , Osaka , Japan
| | - N Iwa
- Osaka Gyoumeikan Hospital , Osaka , Japan
| | - M Takewa
- Osaka Gyoumeikan Hospital , Osaka , Japan
| | - H Noda
- Morinomiya University of Medical Sciences, Department of Medical Technology , Osaka , Japan
| | - T Ohara
- Osaka Gyoumeikan Hospital , Osaka , Japan
| | - K Kodama
- Osaka Gyoumeikan Hospital , Osaka , Japan
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Watanabe K, Sato K, Komatsu S, Sugiyama K, Kumano M, Fujimura T. FAB-MS Measurement of 2-Hydroxyestrone and Monosaccharides Assisted by 4-Pyridineboronic Ester Derivatization. HETEROCYCLES 2022. [DOI: 10.3987/com-22-14647] [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: 11/19/2022]
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Sato K, Watanabe K, Sugiyama K, Komatsu S, Fujimura T. Electrochemical Cleavage of the Carbon-Boron Bond in p-Acetamidophenylboronic Acid at Neutral pH Conditions. Chem Pharm Bull (Tokyo) 2021; 69:1206-1208. [PMID: 34853288 DOI: 10.1248/cpb.c21-00485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Herein, it is reported that p-acetamidophenylboronic acid can be electrolytic cleavage of the carbon-boron bond to p-acetamidophenol at an electric potential of 1.2 V vs. Ag/AgCl in 100 mM phosphate buffer of pH 7.4 (containing 10% acetonirile). The electrochemical reaction was investigated by HPLC, LC with tandem mass spectrometry, and cyclic voltammetry. This electrochemical reaction could be useful in the development of electrical controlled drug delivery systems under neutral pH conditions.
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Affiliation(s)
- Katsuhiko Sato
- Faculty of Pharmaceutical Science, Tohoku Medical and Pharmaceutical University.,Department of Creative Engineering, National Institute of Technology, Tsuruoka College
| | - Kazuhiro Watanabe
- Faculty of Pharmaceutical Science, Tohoku Medical and Pharmaceutical University
| | - Kyoko Sugiyama
- Faculty of Pharmaceutical Science, Tohoku Medical and Pharmaceutical University
| | - Sachiko Komatsu
- Faculty of Pharmaceutical Science, Tohoku Medical and Pharmaceutical University
| | - Tsutomu Fujimura
- Faculty of Pharmaceutical Science, Tohoku Medical and Pharmaceutical University
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8
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Sugiyama K, Sasano Y, Komatsu S, Yoshida K, Ono T, Fujimura T, Iwabuchi Y, Kashiwagi Y, Sato K. Nitroxyl Radical/Copper-Catalyzed Electrooxidation of Alcohols and Amines at Low Potentials. Chem Pharm Bull (Tokyo) 2021; 69:1005-1009. [PMID: 34602569 DOI: 10.1248/cpb.c21-00409] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Nitroxyl radicals, such as 2,2,6,6-tetramethylpiperidine N-oxyl (TEMPO), can catalyze the electrochemical oxidation of alcohols and amines. Because the oxidation current obtained in this process depends on the concentration of alcohols and amines, this process can be applied to their sensing. However, the relatively high oxidation potentials required by nitroxyl radicals can induce interfering oxidation currents from various reductive substances in biological samples, which affects the accuracy of analyte measurements. In this study, we examined the electrooxidation of alcohols and amines at a low potential by applying cooperative oxidation catalysis using a nitroxyl radical and a copper salt. Nortropine N-oxyl (NNO), which showed higher catalytic activity than TEMPO was used as the nitroxyl radical. An increase in the oxidation current was observed at the low potential, and this increase depended on the alcohol concentration. In the case of the electrooxidation of amines, a positive correlation between oxidation current and amine concentration was observed at low amine concentrations. Therefore, low-potential cooperative catalysis can be applied to alcohol and amine electrooxidation for the development of accurate sensors suitable for clinical settings.
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Affiliation(s)
- Kyoko Sugiyama
- Faculty of Pharmaceutical Science, Tohoku Medical and Pharmaceutical University
| | - Yusuke Sasano
- Graduate School of Pharmaceutical Sciences, Tohoku University
| | - Sachiko Komatsu
- Faculty of Pharmaceutical Science, Tohoku Medical and Pharmaceutical University
| | | | - Tetsuya Ono
- School of Pharmaceutical Sciences, Ohu University
| | - Tsutomu Fujimura
- Faculty of Pharmaceutical Science, Tohoku Medical and Pharmaceutical University
| | | | | | - Katsuhiko Sato
- Faculty of Pharmaceutical Science, Tohoku Medical and Pharmaceutical University.,Department of Creative Engineering, National Institute of Technology, Tsuruoka College
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Ono T, Sugiyama K, Komatsu S, Kumano M, Yoshida K, Dairaku T, Fujimura T, Sasano Y, Iwabuchi Y, Kashiwagi Y, Sato K. Catalysis of electro-oxidation of antibiotics by nitroxyl radicals and the electrochemical sensing of vancomycin. RSC Adv 2021; 11:21622-21628. [PMID: 35478798 PMCID: PMC9034136 DOI: 10.1039/d1ra03681e] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Accepted: 06/04/2021] [Indexed: 11/21/2022] Open
Abstract
Quantifying drug concentrations in vivo quickly and easily is possible using electrochemical methods. The present study describes the electrochemical detection of vancomycin (VCM) and other antibiotics from the current obtained using nitroxyl radicals as electrocatalysts. Nortropine N-oxyl (NNO), which is more active than 2,2,6,6-tetramethylpiperidine 1-oxyl (TEMPO), a typical nitroxyl radical compound, produced greater current values for drugs with intramolecular hydroxy groups and secondary and tertiary amines. However, because the catalytic action of NNO is inactivated by primary amines in the substrate, VCM and teicoplanin with primary amines could not be detected. TEMPO was less active than NNO but not inactivated against primary amines. Therefore, electrochemical sensing of vancomycin was done using 4-acetamido-2,2,6,6-tetramethylpiperidine 1-oxyl (A-TEMPO), which has a greater oxidation capacity than TEMPO due to its electron-withdrawing groups. As a result, the current of A-TEMPO increased in the low concentration range of VCM as compared to TEMPO. This method also was able to quantify VCM in the concentration range of 10-100 μM, which is an important concentration range for drug monitoring in blood.
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Affiliation(s)
- Tetsuya Ono
- School of Pharmaceutical Sciences, Ohu University 31-1 Misumido, Tomita-machi Koriyama Fukushima 963-8611 Japan
| | - Kyoko Sugiyama
- Faculty of Pharmaceutical Science, Tohoku Medical and Pharmaceutical University 4-4-1 Komatsushima, Aoba Sendai Miyagi 981-8558 Japan
| | - Sachiko Komatsu
- Faculty of Pharmaceutical Science, Tohoku Medical and Pharmaceutical University 4-4-1 Komatsushima, Aoba Sendai Miyagi 981-8558 Japan
| | - Masayuki Kumano
- Graduate School of Pharmaceutical Sciences, Tohoku University 6-3 Aoba, Aramaki Aoba-ku Sendai 980-8578 Japan
| | - Kentaro Yoshida
- School of Pharmaceutical Sciences, Ohu University 31-1 Misumido, Tomita-machi Koriyama Fukushima 963-8611 Japan
| | - Takenori Dairaku
- School of Pharmaceutical Sciences, Ohu University 31-1 Misumido, Tomita-machi Koriyama Fukushima 963-8611 Japan
| | - Tsutomu Fujimura
- Faculty of Pharmaceutical Science, Tohoku Medical and Pharmaceutical University 4-4-1 Komatsushima, Aoba Sendai Miyagi 981-8558 Japan
| | - Yusuke Sasano
- Graduate School of Pharmaceutical Sciences, Tohoku University 6-3 Aoba, Aramaki Aoba-ku Sendai 980-8578 Japan
| | - Yoshiharu Iwabuchi
- Graduate School of Pharmaceutical Sciences, Tohoku University 6-3 Aoba, Aramaki Aoba-ku Sendai 980-8578 Japan
| | - Yoshitomo Kashiwagi
- School of Pharmaceutical Sciences, Ohu University 31-1 Misumido, Tomita-machi Koriyama Fukushima 963-8611 Japan
| | - Katsuhiko Sato
- Faculty of Pharmaceutical Science, Tohoku Medical and Pharmaceutical University 4-4-1 Komatsushima, Aoba Sendai Miyagi 981-8558 Japan .,Department of Creative Engineering, National Institute of Technology, Tsuruoka College 104 Sawada, Inooka Tsuruoka Yamagata 997-8511 Japan
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Sugiyama K, Watanabe K, Komatsu S, Yoshida K, Ono T, Fujimura T, Kashiwagi Y, Sato K. Electropolymerization of Azure A and pH Sensing Using Poly(azure A)-modified Electrodes. ANAL SCI 2021; 37:893-896. [PMID: 33132234 DOI: 10.2116/analsci.20p341] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
A modified electrode was developed by immobilizing poly(azure A) (pAA) onto the surface of a glassy carbon electrode via the electropolymerization of azure A (AA). The pAA immobilized on the electrode exhibited redox response during cyclic voltammetry (CV) and differential pulse voltammetry (DPV). The redox reaction obeyed the Nernst equation because of the involvement of H+ ions. In addition, the peak potential was shifted according to the solution pH. The shifts of the oxidation peak potential could be more easily observed using DPV than when using CV, indicating that the developed electrode could be useful as a pH sensor. This pH measurement method can be successfully applied in the pH range of 1 to 10 and can be successfully repeated more than 50 times.
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Affiliation(s)
- Kyoko Sugiyama
- Faculty of Pharmaceutical Science, Tohoku Medical and Pharmaceutical University
| | - Kazuhiro Watanabe
- Faculty of Pharmaceutical Science, Tohoku Medical and Pharmaceutical University
| | - Sachiko Komatsu
- Faculty of Pharmaceutical Science, Tohoku Medical and Pharmaceutical University
| | | | - Tetsuya Ono
- School of Pharmaceutical Sciences, Ohu University
| | - Tsutomu Fujimura
- Faculty of Pharmaceutical Science, Tohoku Medical and Pharmaceutical University
| | | | - Katsuhiko Sato
- Faculty of Pharmaceutical Science, Tohoku Medical and Pharmaceutical University.,Department of Creative Engineering, National Institute of Technology, Tsuruoka College
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12
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Komatsu S, Ohno KI, Fujimura T. Binding Assays Using a Benzofurazan-Labeled Fluorescent Probe for Estrogen Receptor-Ligand Interactions. Chem Pharm Bull (Tokyo) 2020; 68:954-961. [PMID: 32999147 DOI: 10.1248/cpb.c20-00349] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Binding assays are widely used to study the estrogenic activity of compounds targeting the estrogen receptor (ER). The fluorescence properties of benzofurazan (BD), an environmentally sensitive fluorophore, are affected by solvent polarity. In this study, we synthesized BD-labeled estradiol (E2) derivatives hoping to develop a fluorescent ligand to be used in ER binding assays, without the separation of free- from bound-ligand. Three fluorescent ligands with a BD skeleton were obtained and their fluorescence properties were investigated. Analysis of the fluorescent ligands and human recombinant ERα (hr-ERα) interactions revealed that the fluorescence intensity increased in hydrophobic environments, such as the receptor-binding site. In saturation binding assays, ABD-E2 derivative 2c showed positive cooperative binding, and its dissociation constant (Kd) and Hill coefficient were 23.4 nM and 1.34, respectively. The estrogenic compounds affinity, assessed by competitive binding assays was well correlated with the results obtained by conventional studies, using the fluorescence polarization method. Overall, the developed assay using BD-labeled ligands was a simple, rapid, and reliable method for the evaluation of ER binding affinity.
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Affiliation(s)
- Sachiko Komatsu
- Faculty of Pharmaceutical Sciences, Tohoku Medical and Pharmaceutical University
| | - Ken-Ichi Ohno
- Faculty of Pharmaceutical Sciences, Tohoku Medical and Pharmaceutical University
| | - Tsutomu Fujimura
- Faculty of Pharmaceutical Sciences, Tohoku Medical and Pharmaceutical University
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13
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Tai K, Komatsu S, Sofue K, Kido M, Tanaka M, Kuramitsu K, Awazu M, Gon H, Tsugawa D, Yanagimoto H, Toyama H, Murakami S, Murakami T, Fukumoto T. Total tumour volume as a prognostic factor in patients with resectable colorectal cancer liver metastases. BJS Open 2020; 4:456-466. [PMID: 32277807 PMCID: PMC7260417 DOI: 10.1002/bjs5.50280] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Accepted: 02/16/2020] [Indexed: 12/29/2022] Open
Abstract
Background Although total tumour volume (TTV) may have prognostic value for hepatic resection in certain solid cancers, its importance in colorectal liver metastases (CRLM) remains unexplored. This study investigated its prognostic value in patients with resectable
CRLM. Method This was a retrospective review of patients who underwent hepatic resection for CRLM between 2008 and 2017 in a single institution. TTV was measured from CT images using three‐dimensional construction software; cut‐off values were determined using receiver operating characteristic (ROC) curve analyses. Potential prognostic factors, overall survival (OS) and recurrence‐free survival (RFS) were determined using multivariable and Kaplan–Meier analyses. Results Some 94 patients were included. TTV cut‐off values for OS and RFS were 100 and 10 ml respectively. Right colonic primary tumours, primary lymph node metastasis and bilobar liver metastasis were included in the multivariable analysis of OS; a TTV of 100 ml or above was independently associated with poorer OS (hazard ratio (HR) 6·34, 95 per cent c.i. 2·08 to 17·90; P = 0·002). Right colonic primary tumours and primary lymph node metastasis were included in the RFS analysis; a TTV of 10 ml or more independently predicted poorer RFS (HR 1·90, 1·12 to 3·57; P = 0·017). The 5‐year OS rate for a TTV of 100 ml or more was 41 per cent, compared with 67 per cent for a TTV below 100 ml (P = 0·006). Corresponding RFS rates with TTV of 10 ml or more, or less than 10 ml, were 14 and 58 per cent respectively (P = 0·009). A TTV of at least 100 ml conferred a higher rate of unresectable initial recurrences (12 of 15, 80 per cent) after initial hepatic resection. Conclusion TTV was associated with RFS and OS after initial hepatic resection for CRLM; TTV of 100 ml or above was associated with a higher rate of unresectable recurrence.
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Affiliation(s)
- K Tai
- Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe, Hyogo, Japan
| | - S Komatsu
- Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe, Hyogo, Japan
| | - K Sofue
- Department of Radiology, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| | - M Kido
- Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe, Hyogo, Japan
| | - M Tanaka
- Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe, Hyogo, Japan
| | - K Kuramitsu
- Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe, Hyogo, Japan
| | - M Awazu
- Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe, Hyogo, Japan
| | - H Gon
- Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe, Hyogo, Japan
| | - D Tsugawa
- Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe, Hyogo, Japan
| | - H Yanagimoto
- Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe, Hyogo, Japan
| | - H Toyama
- Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe, Hyogo, Japan
| | - S Murakami
- Clinical and Translational Research Centre, Kobe University Hospital, Kobe, Hyogo, Japan
| | - T Murakami
- Department of Radiology, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| | - T Fukumoto
- Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe, Hyogo, Japan
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14
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Hobeika C, Fuks D, Cauchy F, Goumard C, Soubrane O, Gayet B, Salamé E, Cherqui D, Vibert E, Scatton O, Nomi T, Oudafal N, Kawai T, Komatsu S, Okumura S, Petrucciani N, Laurent A, Bucur P, Barbier L, Trechot B, Nunèz J, Tedeschi M, Allard MA, Golse N, Ciacio O, Pittau G, Cunha AS, Adam R, Laurent C, Chiche L, Leourier P, Rebibo L, Regimbeau JM, Ferre L, Souche FR, Chauvat J, Fabre JM, Jehaes F, Mohkam K, Lesurtel M, Ducerf C, Mabrut JY, Hor T, Paye F, Balladur P, Suc B, Muscari F, Millet G, El Amrani M, Ratajczak C, Lecolle K, Boleslawski E, Truant S, Pruvot FR, Kianmanesh AR, Codjia T, Schwarz L, Girard E, Abba J, Letoublon C, Chirica M, Carmelo A, VanBrugghe C, Cherkaoui Z, Unterteiner X, Memeo R, Pessaux P, Buc E, Lermite E, Barbieux J, Bougard M, Marchese U, Ewald J, Turini O, Thobie A, Menahem B, Mulliri A, Lubrano J, Zemour J, Fagot H, Passot G, Gregoire E, Hardwigsen J, le Treut YP, Patrice D. Impact of cirrhosis in patients undergoing laparoscopic liver resection in a nationwide multicentre survey. Br J Surg 2020; 107:268-277. [PMID: 31916594 DOI: 10.1002/bjs.11406] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Revised: 09/21/2019] [Accepted: 09/27/2019] [Indexed: 12/21/2022]
Abstract
BACKGROUND The aim was to analyse the impact of cirrhosis on short-term outcomes after laparoscopic liver resection (LLR) in a multicentre national cohort study. METHODS This retrospective study included all patients undergoing LLR in 27 centres between 2000 and 2017. Cirrhosis was defined as F4 fibrosis on pathological examination. Short-term outcomes of patients with and without liver cirrhosis were compared after propensity score matching by centre volume, demographic and tumour characteristics, and extent of resection. RESULTS Among 3150 patients included, LLR was performed in 774 patients with (24·6 per cent) and 2376 (75·4 per cent) without cirrhosis. Severe complication and mortality rates in patients with cirrhosis were 10·6 and 2·6 per cent respectively. Posthepatectomy liver failure (PHLF) developed in 3·6 per cent of patients with cirrhosis and was the major cause of death (11 of 20 patients). After matching, patients with cirrhosis tended to have higher rates of severe complications (odds ratio (OR) 1·74, 95 per cent c.i. 0·92 to 3·41; P = 0·096) and PHLF (OR 7·13, 0·91 to 323·10; P = 0·068) than those without cirrhosis. They also had a higher risk of death (OR 5·13, 1·08 to 48·61; P = 0·039). Rates of cardiorespiratory complications (P = 0·338), bile leakage (P = 0·286) and reoperation (P = 0·352) were similar in the two groups. Patients with cirrhosis had a longer hospital stay than those without (11 versus 8 days; P = 0·018). Centre expertise was an independent protective factor against PHLF in patients with cirrhosis (OR 0·33, 0·14 to 0·76; P = 0·010). CONCLUSION Underlying cirrhosis remains an independent risk factor for impaired outcomes in patients undergoing LLR, even in expert centres.
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Affiliation(s)
- C Hobeika
- Department of Hepatobiliary and Pancreatic Surgery and Liver Transplantation, Sorbonne Université, Centre de Recherche Scientifique Saint Antoine, Hôpital Pitié Salpétrière, Paris, France
| | - D Fuks
- Department of Digestive, Oncological and Metabolic Surgery, Institut Mutualiste Montsouris, University Paris Descartes, Paris, France
| | - F Cauchy
- Department of Hepatobiliary and Pancreatic Surgery and Liver Transplantation, Hôpital Beaujon, Clichy, France
| | - C Goumard
- Department of Hepatobiliary and Pancreatic Surgery and Liver Transplantation, Sorbonne Université, Centre de Recherche Scientifique Saint Antoine, Hôpital Pitié Salpétrière, Paris, France
| | - O Soubrane
- Department of Hepatobiliary and Pancreatic Surgery and Liver Transplantation, Hôpital Beaujon, Clichy, France
| | - B Gayet
- Department of Digestive, Oncological and Metabolic Surgery, Institut Mutualiste Montsouris, University Paris Descartes, Paris, France
| | - E Salamé
- Department of Digestive Surgery and Liver Transplantation, Trousseau University Hospital, Tours University, Tours, France
| | - D Cherqui
- Department of Hepatobiliary and Pancreatic Surgery and Liver Transplantation, Centre Hépato-biliaire de Paul Brousse, Villejuif, France
| | - E Vibert
- Department of Hepatobiliary and Pancreatic Surgery and Liver Transplantation, Centre Hépato-biliaire de Paul Brousse, Villejuif, France
| | - O Scatton
- Department of Hepatobiliary and Pancreatic Surgery and Liver Transplantation, Sorbonne Université, Centre de Recherche Scientifique Saint Antoine, Hôpital Pitié Salpétrière, Paris, France
| | | | - T Nomi
- Nara Medical University, Nara, Japan
| | - N Oudafal
- Institut Mutualiste Montsouris, Paris, France
| | - T Kawai
- Pitié Salpétrière Hospital, Assistance Publique - Hôpitaux de Paris (APHP), Paris, France
| | - S Komatsu
- Pitié Salpétrière Hospital, Assistance Publique - Hôpitaux de Paris (APHP), Paris, France
| | - S Okumura
- Pitié Salpétrière Hospital, Assistance Publique - Hôpitaux de Paris (APHP), Paris, France
| | | | - A Laurent
- Hôpital Henri Mondor, APHP, Creteil, France
| | - P Bucur
- Trousseau Hospital, University Hospital Centre of Tours, Tours, France
| | - L Barbier
- Trousseau Hospital, University Hospital Centre of Tours, Tours, France
| | - B Trechot
- Centre Hépato-biliaire de Paul Brousse, APHP, Villejuif, France
| | - J Nunèz
- Centre Hépato-biliaire de Paul Brousse, APHP, Villejuif, France
| | - M Tedeschi
- Centre Hépato-biliaire de Paul Brousse, APHP, Villejuif, France
| | - M-A Allard
- Centre Hépato-biliaire de Paul Brousse, APHP, Villejuif, France
| | - N Golse
- Centre Hépato-biliaire de Paul Brousse, APHP, Villejuif, France
| | - O Ciacio
- Centre Hépato-biliaire de Paul Brousse, APHP, Villejuif, France
| | - G Pittau
- Centre Hépato-biliaire de Paul Brousse, APHP, Villejuif, France
| | - A Sa Cunha
- Centre Hépato-biliaire de Paul Brousse, APHP, Villejuif, France
| | - R Adam
- Centre Hépato-biliaire de Paul Brousse, APHP, Villejuif, France
| | - C Laurent
- Hospital University Centre of Bordeaux, Bordeaux, France
| | - L Chiche
- Hospital University Centre of Bordeaux, Bordeaux, France
| | - P Leourier
- Hospital University Centre of Amiens-Picardie, Amiens, France
| | - L Rebibo
- Hospital University Centre of Amiens-Picardie, Amiens, France
| | - J-M Regimbeau
- Hospital University Centre of Amiens-Picardie, Amiens, France
| | - L Ferre
- Saint Eloi Hospital, Hospital University Centre of Montpellier, Montpellier, France
| | - F R Souche
- Saint Eloi Hospital, Hospital University Centre of Montpellier, Montpellier, France
| | - J Chauvat
- Saint Eloi Hospital, Hospital University Centre of Montpellier, Montpellier, France
| | - J-M Fabre
- Saint Eloi Hospital, Hospital University Centre of Montpellier, Montpellier, France
| | - F Jehaes
- Croix Rousse Hospital, Hospices Civils de Lyon, Lyon, France
| | - K Mohkam
- Croix Rousse Hospital, Hospices Civils de Lyon, Lyon, France
| | - M Lesurtel
- Croix Rousse Hospital, Hospices Civils de Lyon, Lyon, France
| | - C Ducerf
- Croix Rousse Hospital, Hospices Civils de Lyon, Lyon, France
| | - J-Y Mabrut
- Croix Rousse Hospital, Hospices Civils de Lyon, Lyon, France
| | - T Hor
- St Antoine Hospital, APHP, Paris, France
| | - F Paye
- St Antoine Hospital, APHP, Paris, France
| | - P Balladur
- St Antoine Hospital, APHP, Paris, France
| | - B Suc
- Rangueil Hospital, Hospital University Centre of Toulouse, Toulouse, France
| | - F Muscari
- Rangueil Hospital, Hospital University Centre of Toulouse, Toulouse, France
| | - G Millet
- Claude Huriez Hospital, Hospital University Centre of Lille, Lille, France
| | - M El Amrani
- Claude Huriez Hospital, Hospital University Centre of Lille, Lille, France
| | - C Ratajczak
- Claude Huriez Hospital, Hospital University Centre of Lille, Lille, France
| | - K Lecolle
- Claude Huriez Hospital, Hospital University Centre of Lille, Lille, France
| | - E Boleslawski
- Claude Huriez Hospital, Hospital University Centre of Lille, Lille, France
| | - S Truant
- Claude Huriez Hospital, Hospital University Centre of Lille, Lille, France
| | - F-R Pruvot
- Claude Huriez Hospital, Hospital University Centre of Lille, Lille, France
| | - A-R Kianmanesh
- Robert Debré Hospital, Hospital University Centre of Reims, Reims, France
| | - T Codjia
- Charles Nicolle Hospital, Hospital University Centre of Rouen, Rouen, France
| | - L Schwarz
- Charles Nicolle Hospital, Hospital University Centre of Rouen, Rouen, France
| | - E Girard
- Michalon Hospital, Hospital University Centre of Grenoble, Grebnoble, France
| | - J Abba
- Michalon Hospital, Hospital University Centre of Grenoble, Grebnoble, France
| | - C Letoublon
- Michalon Hospital, Hospital University Centre of Grenoble, Grebnoble, France
| | - M Chirica
- Michalon Hospital, Hospital University Centre of Grenoble, Grebnoble, France
| | | | | | - Z Cherkaoui
- Nouvel Hôpital Civil, Hospital University Centre of Strasbourg, Strasbourg, France
| | - X Unterteiner
- Nouvel Hôpital Civil, Hospital University Centre of Strasbourg, Strasbourg, France
| | - R Memeo
- Nouvel Hôpital Civil, Hospital University Centre of Strasbourg, Strasbourg, France
| | - P Pessaux
- Nouvel Hôpital Civil, Hospital University Centre of Strasbourg, Strasbourg, France
| | - E Buc
- Hospital University Centre of Clermont-Ferrand, Clermont-Ferrand, France
| | - E Lermite
- Hospital University Centre of Angers, Angers, France
| | - J Barbieux
- Hospital University Centre of Angers, Angers, France
| | - M Bougard
- Hospital University Centre of Angers, Angers, France
| | - U Marchese
- Institut Paoli-Calmettes, Marseille, France
| | - J Ewald
- Institut Paoli-Calmettes, Marseille, France
| | - O Turini
- Institut Paoli-Calmettes, Marseille, France
| | - A Thobie
- Hospital University Centre of Caen Normandie, Caen, France
| | - B Menahem
- Hospital University Centre of Caen Normandie, Caen, France
| | - A Mulliri
- Hospital University Centre of Caen Normandie, Caen, France
| | - J Lubrano
- Hospital University Centre of Caen Normandie, Caen, France
| | - J Zemour
- Hospital University Centre of Saint-Pierre, Saint Pierre, Department of Réunion, France
| | - H Fagot
- Hospital University Centre of Saint-Pierre, Saint Pierre, Department of Réunion, France
| | - G Passot
- Hospital University Centre of Lyon Sud, Lyon, France
| | - E Gregoire
- La Timone Hospital, Hospital University Centre of Marseille, Marseille, France
| | - J Hardwigsen
- La Timone Hospital, Hospital University Centre of Marseille, Marseille, France
| | - Y-P le Treut
- La Timone Hospital, Hospital University Centre of Marseille, Marseille, France
| | - D Patrice
- Louis Pasteur Hospital, Colmar, France
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Komatsu S, Takahashi S, Yutani C, Takewa M, Ohara T, Kodama K. P867Detecting cholesterol crystals in coronary artery disease. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz747.0464] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Cholesterol crystals (CCs) have been recognized as only ghost images. Recently, free monolayer and multilayer CCs besides atheromatous materials from aortic ruptured plaque, obtained using nonobstructive angioscopy, were demonstrated using polarized light microscopy.
Purpose
The aim of the study was to detect free CCs from coronary slow flow.
Methods
A total of 86 patients with coronary artery disease underwent angioscopy with coronary artery sampling. Blood in the coronary artery with and without temporary slow flow was sampled. The blood sample was spread onto a filter paper, and the filter paper was rinsed with distilled water (filter paper-rinse method). The rinse water was scanned using polarized light microscopy, and CCs were detected. The dimensions of CCs from the coronary artery and aortic ruptured plaques were measured for 100 randomly selected samples. The lengths and widths of the CCs were measured.
Results
CCs were obtained in 31 of 86 patients (36.0%). CCs were detected in 38.4% of patients with acute coronary syndrome and in 31.9% of patients with stable angina. CCs were detected 47.1% with slow flow and in 25% without slow flow.
Cholesterol Crystals in Coronary Artery
Conclusions
CCs from the coronary artery can be successfully obtained by using our original method. CCs were detected in patients with clinically stable angina and in those without coronary artery slow flow.
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Affiliation(s)
- S Komatsu
- Osaka Gyoumeikan Hospital, Osaka, Japan
| | | | - C Yutani
- Osaka Gyoumeikan Hospital, Osaka, Japan
| | - M Takewa
- Osaka Gyoumeikan Hospital, Osaka, Japan
| | - T Ohara
- Osaka Gyoumeikan Hospital, Osaka, Japan
| | - K Kodama
- Osaka Gyoumeikan Hospital, Osaka, Japan
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Komatsu S, Takahashi S, Yutani C, Kodama K. P1830The Relationship between Spontaneous Ruptured Aortic Plaques/Injuries and Cardiovascular. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.0582] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Non-obstructive general angioscopy has enabled to demonstrate high incidence of various types of spontaneous ruptured aortic plaques/injuries (SRAPIs).
Purpose
The aim of the study is to clarify the relationship between SRAPI and cardiovascular risk factors.
Methods
A total of 439 consecutive patients who had or suspected coronary artery disease were performed angioscopy and were screened SRAPI from ascending aorta to iliac artery. The incidence and the number of SRAPI were analyzed. Association between the total number of total SRAP and patients' characteristics were analyzed.
Results
The total number of SRAPI detected was 2211, 10 [4,22](median [IQR]) per patient.
The numbers of high incidence of representative SRAPI, such as erosion, intramural bleeding, puff-chandelier rupture, puff rupture, fissure, flap, bleeding from fissure, and subintimal bleeding were 327, 313, 268, 262, 224, 167, 120, and 91, respectively. Stepwise multiple linear regression analysis indicated that age, smoking, HbA1c, and coronary heart disease significantly affected the numbers of overall SRAPI (Table).
Conclusions
SRAPIs were associated with cardiovascular risk factors.
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Affiliation(s)
- S Komatsu
- Osaka Gyoumeikan Hospital, Osaka, Japan
| | | | - C Yutani
- Osaka Gyoumeikan Hospital, Osaka, Japan
| | - K Kodama
- Osaka Gyoumeikan Hospital, Osaka, Japan
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17
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Kakuta T, Komatsu S, Kojima K, Fujii H, Kimura S, Dai K, Kawakami H, Matsuoka H, Higuchi Y, Abe H, Inoue T, Okumura Y, Asakura M, Hirayama A, Kodama K. P1831Prediction of cardiovascular events by atheromatous plaques detected by non-obstructive general angioscopy: two-year results of EAST-NOGA Registry. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.0583] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Non-obstructive general angioscopy (NOGA) has revealed the intimal damages or atheromatous plaques as well as its spontaneous rupture of the aorta. Recent study revealed that plaque debris or different size of cholesterol crystals were detected in the blood above the spontaneous ruptured aortic plaque observed by NOGA and these plaque materials might cause the peripheral organ damages as the embolic source. These various morphological changes may cause the acute aortic events or atheroembolic events on the peripheral organs, such as brain, kidney, peripheral artery and so on.
Purpose
EAST-NOGA (Evaluation of AtheroSclerotic and rupture events by Non-Obstructive General Angioscopy) is a multi-center prospective observational study to assess the relationship between the findings of NOGA and future cardiovascular events.
Methods
Five hundred and seventy-seven patients with atherosclerotic cardiovascular disease who underwent NOGA study. The major cerebrocardiovascular events including cardiovascular death, non-fatal myocardial infarction, non-fatal cerebral infarction, and acute aortic syndrome were accumulated during the 2-year follow-up after NOGA study.
Results
The median number of aortic atheromatous plaques was 6 [IQR: 3–12]. A total of 514 patients were followed up (89.1%). The mean follow-up duration was 757±120 days. Major adverse cardiovascular events developed in 23 (4.5%) during 2 years follow-up. Patients with MACE and cerebral infarction, had significantly greater number of aortic atheromatous plaques (11 [5–19] vs. 6 [3–11], p<0.001, 12 [4–20] vs. 6 [3–12], p=0.014, respectively). In a univariate analysis, the number of aortic atheromatous plaques and ruptured plaque were significant predictors of MACE (HR: 1.09 95% confidence interval 1.05–1.14, p<0.001) and (HR: 1.12, 95% confidence interval 1.02–1.23, p=0.02). In a multivariate logistic analysis, the number of aortic atheromatous plaques is one of the independent predictors of MACE (HR 1.05, 95% confidence interval 1.00–1.10, p=0.032).
Conclusion
The number of atheromatous plaques identified by NOGA has a significant relation to the onset of cerebral infarction, which suggest the atheromatous plaque were vulnerable and ruptured spontaneously, then cause the aortogenic cerebral infarction. The NOGA study would be useful for predicting the futured atheroembolic events.
Acknowledgement/Funding
None
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Affiliation(s)
- T Kakuta
- Tsuchiura Kyodo Hospital, Tsuchiura, Japan
| | - S Komatsu
- Osaka Gyoumeikan Hospital, Osaka, Japan
| | - K Kojima
- Nihon University School of Medicine, Tokyo, Japan
| | - H Fujii
- Yokohama Minami Kyosai Hospital, Yokohama, Japan
| | - S Kimura
- Yokohama Minami Kyosai Hospital, Yokohama, Japan
| | - K Dai
- Hiroshima City Hospital, Hiroshima, Japan
| | - H Kawakami
- Ehime Prefectural Imabari Hospital, Imabari, Japan
| | - H Matsuoka
- Ehime Prefectural Central Hospital, Matsuyama, Japan
| | | | - H Abe
- Dokkyo Medical University, Mibu, Japan
| | - T Inoue
- Dokkyo Medical University, Mibu, Japan
| | - Y Okumura
- Nihon University School of Medicine, Tokyo, Japan
| | - M Asakura
- Hyogo College of Medicine, Nishinomiya, Japan
| | | | - K Kodama
- Osaka Gyoumeikan Hospital, Osaka, Japan
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18
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Sasaki R, Demizu Y, Yamashita T, Komatsu S, Akasaka H, Miyawaki D, Yoshida K, Wang T, Okimoto T, Fukumoto T. First-in-Human Phase I Study of a Non-Woven Fabric Bioabsorbable Spacer Combined with Particle Therapy Against Abdominal or Pelvic Sarcomas. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.2522] [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: 11/27/2022]
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19
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Fujii M, Shiina K, Matsumoto C, Komatsu S, Kimura K, Chikamori T, Yamashina A, Tomiyama H. P5724Hyperuricemia and inflammation in the increase in arterial stiffness and development of hypertension. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p5724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- M Fujii
- Tokyo Medical University Hospital, Department of Cardiology, Tokyo, Japan
| | - K Shiina
- Tokyo Medical University Hospital, Department of Cardiology, Tokyo, Japan
| | - C Matsumoto
- Tokyo Medical University Hospital, Department of Cardiology, Tokyo, Japan
| | - S Komatsu
- Tokyo Medical University Hospital, Department of Cardiology, Tokyo, Japan
| | - K Kimura
- Tokyo Medical University Hospital, Department of Cardiology, Tokyo, Japan
| | - T Chikamori
- Tokyo Medical University Hospital, Department of Cardiology, Tokyo, Japan
| | - A Yamashina
- Tokyo Medical University Hospital, Department of Cardiology, Tokyo, Japan
| | - H Tomiyama
- Tokyo Medical University Hospital, Department of Cardiology, Tokyo, Japan
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Kojima K, Komatsu S, Kakuta T, Fukamachi D, Kimura S, Fujii H, Matsuura M, Dai K, Matsuoka H, Hirayama A, Kodama K. P4543Association of aortic vulnerable ruptured plaque and renal function: novel evaluation by non-obstructive angioscopy registry. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p4543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- K Kojima
- Nihon University School of Medicine, Division of Cardiology, Department of Medicine, Tokyo, Japan
| | - S Komatsu
- Osaka Gyoumeikan Hospital, Cardiovascular center, Osaka, Japan
| | - T Kakuta
- Tsuchiura Kyodo Hospital, cardiology, Tsuchiura, Japan
| | - D Fukamachi
- Nihon University School of Medicine, Division of Cardiology, Department of Medicine, Tokyo, Japan
| | - S Kimura
- Yokosuka Kyosai Hospital, Yokosuka, Japan
| | - H Fujii
- Yokohama Minami Kyosai Hospital, cardiology, Yokohama, Japan
| | - M Matsuura
- Kindai University Sakai Hospital, Caldiology, Sakai, Japan
| | - K Dai
- Hiroshima City Hospital, Cardiology, Hiroshima, Japan
| | - H Matsuoka
- Ehime Prefectural Central Hospital, Cardiology, Matsuyama, Japan
| | - A Hirayama
- Nihon University School of Medicine, Division of Cardiology, Department of Medicine, Tokyo, Japan
| | - K Kodama
- Osaka Gyoumeikan Hospital, Cardiovascular center, Osaka, Japan
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Fujiwara H, Shiozaki A, Konishi H, Kosuga T, Komatsu S, Ichikawa D, Okamoto K, Otsuji E. Perioperative outcomes of single-port mediastinoscope-assisted transhiatal esophagectomy for thoracic esophageal cancer. Dis Esophagus 2017; 30:1-8. [PMID: 28859387 DOI: 10.1093/dote/dox047] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Accepted: 04/12/2017] [Indexed: 12/11/2022]
Abstract
We developed an en bloc lymphadenectomy method in the upper mediastinum with a single-port mediastinoscopic cervical approach. This study was designed to evaluate the safety and efficacy of single-port mediastinoscope-assisted transhiatal esophagectomy for thoracic esophageal cancer. The perioperative outcomes of 60 patients with thoracic esophageal cancer who underwent this operation between March 2014 and June 2016 were retrospectively analyzed. The upper mediastinal dissection including lymphadenectomy along the left recurrent laryngeal nerve, using a left cervical approach, was performed with a single-port mediastinoscopic technique, which was used to improve the visibility and handling in the deep mediastinum around the aortic arch. The lymphadenectomy along the right recurrent laryngeal nerve was performed under direct vision using a right cervical approach. Bilateral cervical approaches were followed by hand-assisted laparoscopic transhiatal esophagectomy with en bloc lymphadenectomy in the middle and lower mediastinum. Tumors were mainly located in the middle thoracic esophagus (n = 33), and most tumors were squamous cell carcinoma (n = 58). Pretreatment diagnoses were stage I, 19; II, 13; III, 24; IV, 4. Preoperative chemotherapy was performed for 40 patients. The median operation time and blood loss were 363 minutes and 235 mL, respectively. There were two patients who underwent conversion to thoracotomy. Perioperative complications were evaluated and graded according to the Clavien-Dindo (CD) and the Esophagectomy Complications Consensus Group (ECCG) classifications. Postoperatively, pneumonia was observed in four patients (CD, Grade II, 2; Grade IIIb, 2), although vocal cord palsy was more frequent (ECCG, Type I, 12; Type III, 8). The median number of thoracic lymph nodes resected was 21, and the R0 resection rate was 95%. Single-port mediastinoscope-assisted transhiatal esophagectomy is feasible, in terms of perioperative outcomes, for a radical surgery for thoracic esophageal cancer, although its safety needs to be further demonstrated.
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Komatsu S, Komatsu T, Taguchi I. Percutaneous removal of a free calcified mass from the lumen of the brachial artery. Acta Cardiol 2017; 72:501-502. [PMID: 28707562 DOI: 10.1080/00015385.2017.1335462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Sachiko Komatsu
- Department of Cardiology, Dokkyo Medical University Koshigaya Hospital, Saitama, Japan
| | - Takaaki Komatsu
- Department of Cardiology, Dokkyo Medical University Koshigaya Hospital, Saitama, Japan
| | - Isao Taguchi
- Department of Cardiology, Dokkyo Medical University Koshigaya Hospital, Saitama, Japan
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23
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Nishiyama N, Komatsu T, Kuroyanagi T, Fujikake A, Komatsu S, Nakamura H, Yamada K, Nakahara S, Kobayashi S, Taguchi I. Clinical value of drug-coated balloon angioplasty for de novo lesions in patients with coronary artery disease. Int J Cardiol 2016; 222:113-118. [DOI: 10.1016/j.ijcard.2016.07.156] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Accepted: 07/26/2016] [Indexed: 11/28/2022]
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Abstract
Posttranslational modifications (PTMs) of proteins such as phosphorylation and ubiquitination are crucial for controlling protein stability, localization, and conformation. Genetic information encoded in DNA is transcribed, translated, and increases its complexity by multiple PTMs. Conformational change introduced by PTMs affects interacting partners of each proteins and their downstream signaling; therefore, PTMs are the major level of modulations of total outcome of living cells. Plants are living in harsh environment that requires unremitting physiological modulation to survive, and the plant response to various environment stresses is regulated by PTMs of proteins. This review deals with the novel knowledge of PTM-focused proteomic studies on various life conditions. PTMs are focused that mediate plant-environment interaction such as stress perception, protein homeostasis, control of energy shift, and defense by immune system. Integration of diverse signals on a protein via multiple PTMs is discussed as well, considering current situation where signal integration became an emerging area approached by systems biology into account.
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Affiliation(s)
- A Hashiguchi
- Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - S Komatsu
- National Institute of Crop Science, NARO, Tsukuba, Japan.
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Komatsu S, Ichikawa D, Nishimura M, Kosuga T, Okamoto K, Konishi H, Shiozaki A, Fujiwara H, Otsuji E. Evaluation of prognostic value and stage migration effect using positive lymph node ratio in gastric cancer. Eur J Surg Oncol 2016; 43:203-209. [PMID: 27595506 DOI: 10.1016/j.ejso.2016.08.002] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2015] [Revised: 05/15/2016] [Accepted: 08/01/2016] [Indexed: 01/15/2023] Open
Abstract
AIMS To detect the best cut-off value of the positive lymph node ratio (PLNR) for stratifying the prognosis and analyzing its value with regard to stage migration effect using PLNR in gastric cancer. METHODS We retrospectively analyzed 1069 consecutive gastric cancer patients, who underwent curative gastrectomy with radical lymphadenectomy from 1997 through 2009. RESULTS 1) The mean number of dissected lymph nodes was 42.6 in pStage I, 32.4 in pStage II and 37.1 in pStage III. The PLNR of 0.2 was proved to be the best cut-off value to stratify the prognosis of patients into two groups (P < 0.0001; PLNR <0.2 vs. PLNR ≥0.2), and patients were correctly classified into four groups: PLNR 0, PLNR 0-<0.2, PLNR 0.2-<0.4 and PLNR ≥0.4 by the Kaplan-Meier method. 2) Compared patients with the PLNR <0.2, those with the PLNR ≥0.2 had a significantly higher incidence of pT3 or greater, pN2 or greater, lymphatic invasion, vascular invasion and undifferentiated cancer. Multivariate analysis showed that the PLNR ≥0.2 was an independent prognostic factor [P < 0.0001, HR 2.77 (95% CI: 1.87-4.09)]. 2) The PLNR cut-off value of 0.2 could discriminate a stage migration effect in pN2-N3 and pStage II-III, which patients with PLNR ≥0.2 might be potentially diagnosed as a lower stage after gastrectomy. CONCLUSION The PLNR contributes to evaluating prognosis and stage migration effect even in a single institute and enable to identify those who need meticulous treatments and follow-up in patients with gastric cancer.
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Affiliation(s)
- S Komatsu
- Division of Digestive Surgery, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachihirokoji, Kamigyo-ku, Kyoto, Japan.
| | - D Ichikawa
- Division of Digestive Surgery, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachihirokoji, Kamigyo-ku, Kyoto, Japan
| | - M Nishimura
- Division of Digestive Surgery, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachihirokoji, Kamigyo-ku, Kyoto, Japan
| | - T Kosuga
- Division of Digestive Surgery, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachihirokoji, Kamigyo-ku, Kyoto, Japan
| | - K Okamoto
- Division of Digestive Surgery, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachihirokoji, Kamigyo-ku, Kyoto, Japan
| | - H Konishi
- Division of Digestive Surgery, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachihirokoji, Kamigyo-ku, Kyoto, Japan
| | - A Shiozaki
- Division of Digestive Surgery, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachihirokoji, Kamigyo-ku, Kyoto, Japan
| | - H Fujiwara
- Division of Digestive Surgery, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachihirokoji, Kamigyo-ku, Kyoto, Japan
| | - E Otsuji
- Division of Digestive Surgery, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachihirokoji, Kamigyo-ku, Kyoto, Japan
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Kiuchi J, Komatsu S, Ichikawa D, Aratani K, Konishi H, Shiozaki A, Fujiwara H, Okamoto K, Tsuda H, Otsuji E. Overexpression of CTEN relates to malignant outcome in adenocarcinoma of the esophagogastric junction. Eur J Cancer 2016. [DOI: 10.1016/s0959-8049(16)61213-3] [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]
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27
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Okajima W, Komatsu S, Ichikawa D, Miyamae M, Ohashi T, Imamura T, Kiuchi J, Taniguchi H, Eigo O. Circulating microRNA profiles in plasma: identification of miR-224 as a novel diagnostic biomarker in hepatocellular carcinoma independent of hepatic function. Eur J Cancer 2016. [DOI: 10.1016/s0959-8049(16)61544-7] [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]
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28
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Imamura T, Komatsu S, Ichikawa D, Miyamae M, Morimura R, Ikoma H, Konishi H, Shiozaki A, Taniguchi H, Otsuji E. Plasma microRNA profiles; down-regulation of plasma miR-107 level contributes to poor outcomes in pancreatic cancer. Eur J Cancer 2016. [DOI: 10.1016/s0959-8049(16)61414-4] [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]
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29
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Ohashi T, Komatsu S, Ichikawa D, Miyamae M, Okajima W, Imamura T, Kiuchi J, Okamoto K, Tsuda H, Otsuji E. Overexpression of PBK/TOPK relates to tumor malignant potential and poor outcome of gastric carcinoma. Eur J Cancer 2016. [DOI: 10.1016/s0959-8049(16)61052-3] [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: 11/26/2022]
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30
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Komatsu T, Komatsu S, Nakamura H, Kuroyanagi T, Fujikake A, Hisauchi I, Sakuma M, Nakahara S, Sakai Y, Taguchi I. Insulin Resistance as a Predictor of the Late Catch-up Phenomenon After Drug-Eluting Stent Implantation. Circ J 2016; 80:657-62. [PMID: 26821581 DOI: 10.1253/circj.cj-15-1012] [Citation(s) in RCA: 4] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND Percutaneous coronary intervention (PCI) is an effective treatment for patients with ischemic heart disease. In particular, restenosis is suppressed after drug-eluting stent (DES) implantation. However, several problems remain. Previously, we reported neointimal proliferation after DES implantation, which was associated with insulin resistance (IR). The aim of the present study was to clarify whether IR is associated with mortality and major adverse cardiac and cerebrovascular events (MACCE) after 1st-generation DES implantation. METHODS AND RESULTS We researched the clinical records of 109 patients who had undergone elective PCI and DES implantation between May 2007 and December 2010. We segregated these patients according to the value of the homeostasis model assessment of IR (HOMA-IR) into Group P (n=63; HOMA-IR ≥2.5, positive) and Group N (n=46; HOMA-IR <2.5, negative), and examined the relationship between HOMA-IR and MACCE. The observation period was 7.4±1.6 years. There were no differences between the 2 groups in the occurrence of all-cause death, cardiac death, restenosis, myocardial infarction, stroke, heart failure, or stent thrombosis. However, the late catch-up phenomenon was significantly more common in Group P than in Group N (12.7% vs. 2.2% P=0.048). CONCLUSIONS IR is a useful predictor of the late catch-up phenomenon after DES implantation, and improvement of IR may help to prevent the phenomenon. (Circ J 2016; 80: 657-662).
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Affiliation(s)
- Takaaki Komatsu
- Department of Cardiology, Dokkyo Medical University Koshigaya Hospital
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31
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Honma M, Iinuma S, Kanno K, Komatsu S, Minami-Hori M, Iizuka H, Ishida-Yamamoto A. Serum carcinoembryonic antigen (CEA) as a clinical marker in acquired idiopathic generalized anhidrosis: a close correlation between serum CEA level and disease activity. J Eur Acad Dermatol Venereol 2015; 30:1379-83. [DOI: 10.1111/jdv.13390] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2015] [Accepted: 08/07/2015] [Indexed: 11/27/2022]
Affiliation(s)
- M. Honma
- Department of Dermatology; Asahikawa Medical University; Asahikawa Japan
| | - S. Iinuma
- Department of Dermatology; Asahikawa Medical University; Asahikawa Japan
| | - K. Kanno
- Department of Dermatology; Asahikawa Medical University; Asahikawa Japan
| | - S. Komatsu
- Department of Dermatology; Asahikawa Medical University; Asahikawa Japan
| | - M. Minami-Hori
- Department of Dermatology; Asahikawa Medical University; Asahikawa Japan
| | - H. Iizuka
- Department of Dermatology; Asahikawa Medical University; Asahikawa Japan
| | - A. Ishida-Yamamoto
- Department of Dermatology; Asahikawa Medical University; Asahikawa Japan
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32
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Komatsu T, Yaguchi I, Komatsu S, Nakahara S, Kobayashi S, Sakai Y, Taguchi I. Impact of Insulin Resistance on Neointimal Tissue Proliferation after 2nd-Generation Drug-Eluting Stent Implantation. Tex Heart Inst J 2015; 42:327-32. [PMID: 26413014 DOI: 10.14503/thij-14-4393] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Percutaneous coronary intervention is established as an effective treatment for patients with ischemic heart disease; in particular, drug-eluting stent implantation is known to suppress in-stent restenosis. Diabetes mellitus is an independent risk factor for restenosis, so reducing insulin resistance is being studied as a new treatment approach. In this prospective study, we sought to clarify the factors associated with in-stent restenosis after percutaneous coronary intervention, and we evaluated the homeostasis model assessment of insulin resistance (HOMA-IR) index as a predictor of restenosis. We enrolled 136 consecutive patients who underwent elective percutaneous coronary intervention at our hospital from February 2010 through April 2013. All were implanted with a 2nd-generation drug-eluting stent. We distributed the patients in accordance with their HOMA-IR index values into insulin-resistant Group P (HOMA-IR, ≥2.5; n=77) and noninsulin-resistant Group N (HOMA-IR, <2.5; n=59). Before and immediately after stenting, we measured reference diameter, minimal lumen diameter, and percentage of stenosis, and after 8 months we measured the last 2 factors and late lumen loss, all by means of quantitative coronary angiography. After 8 months, the mean minimal lumen diameter was smaller in Group P than that in Group N (1.85 ± 1.02 vs 2.37 ± 0.66 mm; P=0.037), and the mean late lumen loss was larger (0.4 ± 0.48 vs 0.16 ± 0.21 mm; P=0.025). These results suggest that insulin resistance affects neointimal tissue proliferation after 2nd-generation drug-eluting stent implantation.
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Hashiguchi Y, Lee JM, Shiraishi M, Komatsu S, Miki S, Shimasaki Y, Mochioka N, Kusakabe T, Oshima Y. Characterization and evolutionary analysis of tributyltin-binding protein and pufferfish saxitoxin and tetrodotoxin-binding protein genes in toxic and nontoxic pufferfishes. J Evol Biol 2015; 28:1103-18. [PMID: 25847490 DOI: 10.1111/jeb.12634] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2014] [Accepted: 03/29/2015] [Indexed: 12/20/2022]
Abstract
Understanding the evolutionary mechanisms of toxin accumulation in pufferfishes has been long-standing problem in toxicology and evolutionary biology. Pufferfish saxitoxin and tetrodotoxin-binding protein (PSTBP) is involved in the transport and accumulation of tetrodotoxin and is one of the most intriguing proteins related to the toxicity of pufferfishes. PSTBPs are fusion proteins consisting of two tandem repeated tributyltin-binding protein type 2 (TBT-bp2) domains. In this study, we examined the evolutionary dynamics of TBT-bp2 and PSTBP genes to understand the evolution of toxin accumulation in pufferfishes. Database searches and/or PCR-based cDNA cloning in nine pufferfish species (6 toxic and 3 nontoxic) revealed that all species possessed one or more TBT-bp2 genes, but PSTBP genes were found only in 5 toxic species belonging to genus Takifugu. These toxic Takifugu species possessed two or three copies of PSTBP genes. Phylogenetic analysis of TBT-bp2 and PSTBP genes suggested that PSTBPs evolved in the common ancestor of Takifugu species by repeated duplications and fusions of TBT-bp2 genes. In addition, a detailed comparison of Takifugu TBT-bp2 and PSTBP gene sequences detected a signature of positive selection under the pressure of gene conversion. The complicated evolutionary dynamics of TBT-bp2 and PSTBP genes may reflect the diversity of toxicity in pufferfishes.
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Affiliation(s)
- Y Hashiguchi
- Department of Biology, Osaka Medical College, Takatsuki, Osaka, Japan
| | - J M Lee
- Laboratory of Silkworm Science, Faculty of Agriculture, Kyushu University, Fukuoka, Japan
| | - M Shiraishi
- Laboratory of Marine Environmental Science, Department of Bioscience and Biotechnology, Faculty of Agriculture, Kyushu University, Fukuoka, Japan
| | - S Komatsu
- Laboratory of Marine Environmental Science, Department of Bioscience and Biotechnology, Faculty of Agriculture, Kyushu University, Fukuoka, Japan
| | - S Miki
- Laboratory of Marine Environmental Science, Department of Bioscience and Biotechnology, Faculty of Agriculture, Kyushu University, Fukuoka, Japan
| | - Y Shimasaki
- Laboratory of Marine Environmental Science, Department of Bioscience and Biotechnology, Faculty of Agriculture, Kyushu University, Fukuoka, Japan
| | - N Mochioka
- Laboratory of Bioresource Sciences, Faculty of Agriculture, Kyushu University, Fukuoka, Japan
| | - T Kusakabe
- Laboratory of Silkworm Science, Faculty of Agriculture, Kyushu University, Fukuoka, Japan
| | - Y Oshima
- Laboratory of Marine Environmental Science, Department of Bioscience and Biotechnology, Faculty of Agriculture, Kyushu University, Fukuoka, Japan
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Fujiwara H, Shiozaki A, Konishi H, Komatsu S, Kubota T, Ichikawa D, Okamoto K, Morimura R, Murayama Y, Kuriu Y, Ikoma H, Nakanishi M, Sakakura C, Otsuji E. Hand-assisted laparoscopic transhiatal esophagectomy with a systematic procedure for en bloc infracarinal lymph node dissection. Dis Esophagus 2014; 29:131-8. [PMID: 25487303 DOI: 10.1111/dote.12303] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Laparoscopic transhiatal esophagectomy is a minimally invasive approach for esophageal cancer. However, a transhiatal procedure has not yet been established for en bloc mediastinal dissection. The purpose of this study was to present our novel procedure, hand-assisted laparoscopic transhiatal esophagectomy, with a systematic procedure for en bloc mediastinal dissection. The perioperative outcomes of patients who underwent this procedure were retrospectively analyzed. Transhiatal subtotal mobilization of the thoracic esophagus with en bloc lymph node dissection distally from the carina was performed according to a standardized procedure using a hand-assisted laparoscopic technique, in which the operator used a long sealing device under appropriate expansion of the operative field by hand assistance and long retractors. The thoracoscopic procedure was performed for upper mediastinal dissection following esophageal resection and retrosternal stomach roll reconstruction, and was avoided based on the nodal status and operative risk. A total of 57 patients underwent surgery between January 2012 and June 2013, and the transthoracic procedure was performed on 34 of these patients. In groups with and without the transthoracic procedure, total operation times were 370 and 216 minutes, blood losses were 238 and 139 mL, and the numbers of retrieved nodes were 39 and 24, respectively. R0 resection rates were similar between the groups. The incidence of recurrent laryngeal nerve palsy was significantly higher in the group with the transthoracic procedure, whereas no significant differences were observed in that of pneumonia between these groups. The hand-assisted laparoscopic transhiatal method, which is characterized by a systematic procedure for en bloc mediastinal dissection supported by hand and long device use, was safe and feasible for minimally invasive esophagectomy.
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Affiliation(s)
- H Fujiwara
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - A Shiozaki
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - H Konishi
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - S Komatsu
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - T Kubota
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - D Ichikawa
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - K Okamoto
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - R Morimura
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Y Murayama
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Y Kuriu
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - H Ikoma
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - M Nakanishi
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - C Sakakura
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - E Otsuji
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan
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Komatsu S, Ichikawa D, Hirajima S, Nagata H, Nishimura Y, Kawaguchi T, Miyamae M, Okajima W, Ohashi T, Konishi H, Shiozaki A, Fujiwara H, Okamoto K, Tsuda H, Imoto I, Inazawa J, Otsuji E. Overexpression of SMYD2 contributes to malignant outcome in gastric cancer. Br J Cancer 2014; 112:357-64. [PMID: 25321194 PMCID: PMC4453442 DOI: 10.1038/bjc.2014.543] [Citation(s) in RCA: 75] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2014] [Revised: 09/01/2014] [Accepted: 09/18/2014] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND SET and MYND domain-containing protein 2 (SMYD2) is a lysine methyltransferase for histone H3, p53 and Rb and inhibits their transactivation activities. In this study, we tested whether SMYD2 (1q42) acts as a cancer-promoting factor by being overexpressed in gastric cancer. METHODS We analysed 7 gastric cancer cell lines and 147 primary tumor samples of gastric cancer, which were curatively resected in our hospital. RESULTS SET and MYND domain-containing protein 2 was detected in these cell lines (five out of seven cell lines; 71.4%) and primary tumor samples (fifty-six out of one hundred and forty-seven cases; 38.1%). Knockdown of SMYD2 using specific small interfering RNA inhibited proliferation, migration and invasion of SMYD2-overexpressing cells in a TP53 mutation-independent manner. Overexpression of SMYD2 protein correlated with larger tumor size, more aggressive lymphatic invasion, deeper tumor invasion and higher rates of lymph node metastasis and recurrence. Patients with SMYD2-overexpressing tumours had a worse overall rate of survival than those with non-expressing tumours (P=0.0073, log-rank test) in an intensity and proportion score-dependent manner. Moreover, multivariate analysis demonstrated that SMYD2 was independently associated with worse outcome (P=0.0021, hazard ratio 4.25 (1.69-10.7)). CONCLUSIONS These findings suggest that SMYD2 has a crucial role in tumor cell proliferation by its overexpression and highlight its usefulness as a prognostic factor and potential therapeutic target in gastric cancer.
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Affiliation(s)
- S Komatsu
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachihirokoji, Kamigyo-ku, Kyoto 602-8566, Japan
| | - D Ichikawa
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachihirokoji, Kamigyo-ku, Kyoto 602-8566, Japan
| | - S Hirajima
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachihirokoji, Kamigyo-ku, Kyoto 602-8566, Japan
| | - H Nagata
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachihirokoji, Kamigyo-ku, Kyoto 602-8566, Japan
| | - Y Nishimura
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachihirokoji, Kamigyo-ku, Kyoto 602-8566, Japan
| | - T Kawaguchi
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachihirokoji, Kamigyo-ku, Kyoto 602-8566, Japan
| | - M Miyamae
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachihirokoji, Kamigyo-ku, Kyoto 602-8566, Japan
| | - W Okajima
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachihirokoji, Kamigyo-ku, Kyoto 602-8566, Japan
| | - T Ohashi
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachihirokoji, Kamigyo-ku, Kyoto 602-8566, Japan
| | - H Konishi
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachihirokoji, Kamigyo-ku, Kyoto 602-8566, Japan
| | - A Shiozaki
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachihirokoji, Kamigyo-ku, Kyoto 602-8566, Japan
| | - H Fujiwara
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachihirokoji, Kamigyo-ku, Kyoto 602-8566, Japan
| | - K Okamoto
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachihirokoji, Kamigyo-ku, Kyoto 602-8566, Japan
| | - H Tsuda
- Department of Pathology, National Cancer Center Hospital, Tokyo 104-0045, Japan
| | - I Imoto
- Department of Human Genetics, Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima 770-8505, Japan
| | - J Inazawa
- Department of Molecular Cytogenetics, Medical Research Institute and School of Biomedical Science, Tokyo Medical and Dental University, Tokyo 113-5810, Japan
| | - E Otsuji
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachihirokoji, Kamigyo-ku, Kyoto 602-8566, Japan
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Shiozaki A, Fujiwara H, Murayama Y, Komatsu S, Kuriu Y, Ikoma H, Nakanishi M, Ichikawa D, Okamoto K, Ochiai T, Kokuba Y, Otsuji E. Perioperative outcomes of esophagectomy preceded by the laparoscopic transhiatal approach for esophageal cancer. Dis Esophagus 2014; 27:470-8. [PMID: 23088181 DOI: 10.1111/j.1442-2050.2012.01439.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
This study was designed to determine the efficacy of esophagectomy preceded by the laparoscopic transhiatal approach (LTHA) with regard to the perioperative outcomes of esophageal cancer. The esophageal hiatus was opened by hand-assisted laparoscopic surgery, and carbon dioxide was introduced into the mediastinum. Dissection of the distal esophagus was performed up to the level of the tracheal bifurcation. En bloc dissection of the posterior mediastinal lymph nodes was performed using LTHA. Next, cervical lymphadenectomy, reconstruction via a retrosternal route with a gastric tube and anastomosis from a cervical approach were performed. Finally, a small thoracotomy (around 10 cm in size) was made to extract the thoracic esophagus and allow upper mediastinal lymphadenectomy to be performed. The treatment outcomes of 27 esophageal cancer patients who underwent LTHA-preceding esophagectomy were compared with those of 33 patients who underwent the transthoracic approach preceding esophagectomy without LTHA (thoracotomy; around 20 cm in size). The intrathoracic operative time and operative bleeding were significantly decreased by LTHA. The total operative time did not differ between the two groups, suggesting that the abdominal procedure was longer in the LTHA group. The number of resected lymph nodes did not differ between the two groups. Postoperative respiratory complications occurred in 18.5% of patients treated with LTHA and 30.3% of those treated without it. The increase in the number of peripheral white blood cells and the duration of thoracic drainage were significantly decreased by this method. Our surgical procedure provides a good surgical view of the posterior mediastinum, markedly shortens the intrathoracic operative time, and decreases the operative bleeding without increasing major postoperative complications.
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Affiliation(s)
- A Shiozaki
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan
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Komatsu T, Komatsu S, Yaguchi I. Successful percutaneous coronary thrombolytic therapy of myocardial infarction caused by Cabrol conduit graft. Heart Asia 2014; 6:30. [DOI: 10.1136/heartasia-2013-010433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Yamada T, Shimura T, Sakamoto E, Kurumiya Y, Komatsu S, Iwasaki H, Nomura S, Kanie H, Hasegawa H, Orito E, Joh T. Preoperative drainage using a transanal tube enables elective laparoscopic colectomy for obstructive distal colorectal cancer. Endoscopy 2013; 45:265-71. [PMID: 23322477 DOI: 10.1055/s-0032-1326030] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
BACKGROUND AND STUDY AIMS Acute colorectal obstruction (ACO) often accompanies colorectal cancer (CRC) and requires urgent treatment, but achieving elective laparoscopy-assisted colectomy (LAC) is difficult in this setting. The aim of the current study was to assess the clinical outcomes of a transanal tube (Dennis colorectal tube [DCT]) for CRC with ACO, focusing in particular on the impact of the DCT on subsequent elective LAC. PATIENTS AND METHODS Among 1142 patients who underwent surgery for CRC between January 2007 and December 2011, 92 patients with ACO were identified retrospectively. Of these 92 patients, the DCT procedure was performed in 66 patients who fulfilled the indications for DCT, and these patients were included in the study. RESULTS All 66 patients presented with complete obstruction. Technical and clinical success rates for DCT were 93.9 % and 86.4 %, respectively. Perforation after DCT occurred in 4.5 % and the mortality rate was 1.5 %. The rate of LAC was 48.5 %, and the rate of primary stoma was 13.6 %. For curative stage II/III CRC with ACO, DCT resulted in a primary stoma rate of 13.6 %, a one-stage surgery rate of 90.9 %, a LAC rate of 50.0 %, and a 3-year survival rate of 73.1 %. For stage II/III CRC cases with clinical success by DCT, the one-stage surgery rate was 97.4 % and the LAC rate was 56.4 %. CONCLUSIONS DCT achieved a high rate of clinical success and enabled safe one-stage surgery and LAC for CRC with ACO. DCT followed by LAC is proposed as a promising non-invasive strategy for CRC with ACO.
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Affiliation(s)
- T Yamada
- Department of Gastroenterology, Nagoya Daini Red Cross Hospital, Nagoya, Japan
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Imai A, Komatsu S, Ohara T, Kamata T, Yoshida J, Miyaji K, Takewa M, Kobayashi Y, Ohe R, Kodama K. The impact of central obesity on accelerated progression of noncalcified coronary plaque assessed by coronary CT angiography: a 4-year-follow-up study. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht307.p736] [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: 11/14/2022] Open
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Takeuchi T, Komatsu S, Muramatsu T, Kubo T, Kuroki A, Tango T, Tanaka Y. FRI0202 A large-scale prospective single cohort study of work productivity and activity impairment in japanese patients with rheumatoid arthritis receiving adalimumab: analysis of 24-weeks data from the anouveau study. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.1329] [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: 11/04/2022]
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Nishimura Y, Komatsu S, Ichikawa D, Nagata H, Hirajima S, Takeshita H, Kawaguchi T, Arita T, Konishi H, Kashimoto K, Shiozaki A, Fujiwara H, Okamoto K, Tsuda H, Otsuji E. Overexpression of YWHAZ relates to tumor cell proliferation and malignant outcome of gastric carcinoma. Br J Cancer 2013; 108:1324-31. [PMID: 23422756 PMCID: PMC3619260 DOI: 10.1038/bjc.2013.65] [Citation(s) in RCA: 92] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Several studies have demonstrated that YWHAZ (14-3-3ζ), included in the 14-3-3 family of proteins, has been implicated in the initiation and progression of cancers. We tested whether YWHAZ acted as a cancer-promoting gene through its activation/overexpression in gastric cancer (GC). METHODS We analysed 7 GC cell lines and 141 primary tumours, which were curatively resected in our hospital between 2001 and 2003. RESULTS Overexpression of the YWHAZ protein was frequently detected in GC cell lines (six out of seven lines, 85.7%) and primary tumour samples of GC (72 out of 141 cases, 51%), and significantly correlated with larger tumour size, venous and lymphatic invasion, deeper tumour depth, and higher pathological stage and recurrence rate. Patients with YWHAZ-overexpressing tumours had worse overall survival rates than those with non-expressing tumours in both intensity and proportion expression-dependent manner. YWHAZ positivity was independently associated with a worse outcome in multivariate analysis (P=0.0491, hazard ratio 2.3 (1.003-5.304)). Knockdown of YWHAZ expression using several specific siRNAs inhibited the proliferation, migration, and invasion of YWHAZ-overexpressing GC cells. Higher expression of the YWHAZ protein was significantly associated with the lower expression of miR-375 in primary GC tissues (P=0.0047). CONCLUSION These findings suggest that YWHAZ has a pivotal role in tumour cell proliferation through its overexpression, and highlight its usefulness as a prognostic factor and potential therapeutic target in GC.
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Affiliation(s)
- Y Nishimura
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachihirokoji, Kamigyo-ku, Kyoto 602-8566, Japan
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Konishi H, Ichikawa D, Komatsu S, Shiozaki A, Tsujiura M, Takeshita H, Morimura R, Nagata H, Arita T, Kawaguchi T, Hirashima S, Fujiwara H, Okamoto K, Otsuji E. Detection of gastric cancer-associated microRNAs on microRNA microarray comparing pre- and post-operative plasma. Br J Cancer 2012; 106:740-7. [PMID: 22262318 PMCID: PMC3322946 DOI: 10.1038/bjc.2011.588] [Citation(s) in RCA: 152] [Impact Index Per Article: 12.7] [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: 12/16/2022] Open
Abstract
Background: Recently, it was reported that plasma microRNAs (miRNAs) are low-invasive useful biomarkers for cancer. We attempted to isolate gastric cancer (GC)-associated miRNAs comparing pre- and post-operative paired plasma, thereby excluding the possible effects of individual variability. Methods: This study was divided into four steps: (1) microarray analysis comparing pre- and post-operative plasma; (2) validation of candidate miRNAs by quantitative RT–PCR; (3) validation study of selected miRNAs using paired plasma; and (4) comparison of the levels of selected miRNAs in plasma between healthy controls and patients. Results: From the results of microarray analysis, nine candidate miRNAs the levels of which were markedly decreased in post-operative plasma were selected for further studies. After confirmation of their post-operative marked reduction, two candidate miRNAs, miR-451 and miR-486, were selected as plasma biomarkers, considering the abundance in plasma, and marked decrease in post-operative samples. In validation, the two miRNAs were found to decrease in post-operative plasma in 90 and 93% of patients (both P<0.01). In comparison with healthy controls, the levels of both miRNAs were found to be significantly higher in patients, and the area under the curve values were high at 0.96 and 0.92. Conclusion: Plasma miR-451 and miR-486 could be useful blood-based biomarkers for screening GC.
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Affiliation(s)
- H Konishi
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachihirokoji, Kamigyo-ku, Kyoto 602-8566, Japan
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Morimura R, Komatsu S, Ichikawa D, Takeshita H, Tsujiura M, Nagata H, Konishi H, Shiozaki A, Ikoma H, Okamoto K, Ochiai T, Taniguchi H, Otsuji E. Novel diagnostic value of circulating miR-18a in plasma of patients with pancreatic cancer. Br J Cancer 2011; 105:1733-40. [PMID: 22045190 PMCID: PMC3242609 DOI: 10.1038/bjc.2011.453] [Citation(s) in RCA: 202] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2011] [Revised: 09/28/2011] [Accepted: 10/05/2011] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Several recent studies have demonstrated that microRNAs (miRNAs) are stably detectable in the plasma/serum. We hypothesised that miR-18a in the plasma is a potential biomarker in patients with pancreatic cancer. METHODS miR-18a is located in the miR-17-92 cluster and reported to be highly expressed in pancreatic cancer tissues. This study was divided into three parts: (1) Confirmation of higher miR-18a levels in primary pancreatic cancer tissues and cell lines than in normal pancreatic tissues and a human fibroblast cell line. (2) Evaluation of the plasma miR-18a assay using quantitative RT-PCR by comparing plasma results obtained from 36 patients with pancreatic cancer and from 30 healthy volunteers. (3) Evaluation of the assay for monitoring tumour dynamics in patients with pancreatic cancer. RESULTS (1) The expression of miR-18a was significantly higher in pancreatic cancer tissues (P=0.012) and pancreatic cancer cell lines (P=0.015) than in normal tissues and fibroblasts. (2) Plasma concentrations of miR-18a were significantly higher in pancreatic cancer patients than in controls (P<0.0001). The value of the area under the receiver-operating characteristic curve (AUC) was 0.9369. (3) Plasma levels of miR-18a were significantly lower in postoperative samples than in preoperative samples (P=0.0077). CONCLUSION Circulating miR-18a might provide new complementary tumour markers for pancreatic cancer.
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Affiliation(s)
- R Morimura
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachihirokoji, Kamigyo-ku, Kyoto 602-8566, Japan
| | - S Komatsu
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachihirokoji, Kamigyo-ku, Kyoto 602-8566, Japan
| | - D Ichikawa
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachihirokoji, Kamigyo-ku, Kyoto 602-8566, Japan
| | - H Takeshita
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachihirokoji, Kamigyo-ku, Kyoto 602-8566, Japan
| | - M Tsujiura
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachihirokoji, Kamigyo-ku, Kyoto 602-8566, Japan
| | - H Nagata
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachihirokoji, Kamigyo-ku, Kyoto 602-8566, Japan
| | - H Konishi
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachihirokoji, Kamigyo-ku, Kyoto 602-8566, Japan
| | - A Shiozaki
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachihirokoji, Kamigyo-ku, Kyoto 602-8566, Japan
| | - H Ikoma
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachihirokoji, Kamigyo-ku, Kyoto 602-8566, Japan
| | - K Okamoto
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachihirokoji, Kamigyo-ku, Kyoto 602-8566, Japan
| | - T Ochiai
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachihirokoji, Kamigyo-ku, Kyoto 602-8566, Japan
| | - H Taniguchi
- Department of Surgery, Kyoto Second Red Cross Hospital, 355-5 Kamanzadoori Marutacho Hruobicho, Kamigyo-ku, Kyoto, Japan
| | - E Otsuji
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachihirokoji, Kamigyo-ku, Kyoto 602-8566, Japan
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Ogata R, Suzuki S, Ahn JK, Akune Y, Baranov V, Chen KF, Comfort J, Doroshenko M, Fujioka Y, Hsiung YB, Inagaki T, Ishibashi S, Ishihara N, Ishii H, Iwai E, Iwata T, Kato I, Kobayashi S, Komatsu S, Komatsubara TK, Kurilin AS, Kuzmin E, Lednev A, Lee HS, Lee SY, Lim GY, Ma J, Matsumura T, Moisseenko A, Morii H, Morimoto T, Nakajima Y, Nakano T, Nanjo H, Nishi N, Nix J, Nomura T, Nomachi M, Okuno H, Omata K, Perdue GN, Perov S, Podolsky S, Porokhovoy S, Sakashita K, Sasaki T, Sasao N, Sato H, Sato T, Sekimoto M, Shimogawa T, Shinkawa T, Stepanenko Y, Sugaya Y, Sugiyama A, Sumida T, Tajima Y, Takita S, Tsamalaidze Z, Tsukamoto T, Tung YC, Wah YW, Watanabe H, Wu ML, Yamaga M, Yamanaka T, Yoshida HY, Yoshimura Y, Zheng Y. Study of theKL0→π0π0νν¯decay. Int J Clin Exp Med 2011. [DOI: 10.1103/physrevd.84.052009] [Citation(s) in RCA: 8] [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: 11/07/2022]
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Komatsu S, Ichikawa D, Takeshita H, Tsujiura M, Morimura R, Nagata H, Kosuga T, Iitaka D, Konishi H, Shiozaki A, Fujiwara H, Okamoto K, Otsuji E. Circulating microRNAs in plasma of patients with oesophageal squamous cell carcinoma. Br J Cancer 2011; 105:104-11. [PMID: 21673684 PMCID: PMC3137413 DOI: 10.1038/bjc.2011.198] [Citation(s) in RCA: 199] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Background: Several recent studies demonstrated that microRNAs (miRNAs) are stably detectable in plasma/serum. We hypothesised that plasma miRNAs concentrations contributed to potential biomarkers in patients with oesophageal squamous cell carcinoma (ESCC). Methods: We selected three oncogenic miRNAs (miR-21, miR-184, miR-221) and one tumour suppressive miRNA (miR-375), which are frequently reported in squamous cell carcinoma, as candidate targets for this plasma miRNA assay. This study was divided into three steps: (1) Determination of appropriate plasma miRNAs in preliminary tests. (2) Evaluation of whether the plasma miRNA assays could monitor tumour dynamics. (3) Validation study on the clinical application of plasma miRNA assays in 50 ESCC patients and 20 healthy volunteers. Results: (1) In preliminary tests, the plasma level of miR-21 was significantly higher (P=0.0218) and that of miR-375 (P=0.0052) was significantly lower in ESCC patients than controls. (2) The high plasma miR-21 levels reflected tumour levels in all cases (100%). The plasma level of miR-21 was significantly reduced in postoperative samples (P=0.0058). (3) On validation analysis, the plasma level of miR-21 tended to be higher in ESCC patients (P=0.0649), while that of miR-375 was significantly lower (P<0.0001) and the miR-21/miR-375 ratio was significantly higher (P<0.0001) in ESCC patients than in controls. The value of the area under the receiver-operating characteristic curve (AUC) was 0.816 for the miR-21/miR-375 ratio assay. Patients with a high plasma level of miR-21 tended to have greater vascular invasion (P=0.1554) and to show a high correlation with recurrence (P=0.0164). Conclusion: Detection of circulating miRNAs might provide new complementary tumour markers for ESCC.
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Affiliation(s)
- S Komatsu
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachihirokoji, Kamigyo-ku, Kyoto 602-8566, Japan
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Shinano T, Komatsu S, Yoshimura T, Tokutake S, Kong FJ, Watanabe T, Wasaki J, Osaki M. Proteomic analysis of secreted proteins from aseptically grown rice. Phytochemistry 2011; 72:312-20. [PMID: 21255809 DOI: 10.1016/j.phytochem.2010.12.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2010] [Revised: 11/01/2010] [Accepted: 12/06/2010] [Indexed: 05/18/2023]
Abstract
Plants are known to secrete a variety of compounds into the rhizosphere. These compounds are thought to play important roles in the regulation of soil chemical properties and soil microorganisms. To determine the composition of proteins secreted from rice roots, aseptic hydro culture was performed, and the collected proteins were analyzed. Over 100 proteins were identified; most were identified using the rice database (RAP-DB), and about 60% of the identified proteins were suspected to have a signal peptide. Functional categorization suggested that most were secondary metabolism- and defense-related proteins. Pathogenesis- and stress-related proteins were the major proteins found in the bathing solution under aseptic conditions. Thus, we propose that rice plants constitutively secrete a large variety of proteins to protect their roots against abiotic and/or biotic stresses in the environment.
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Affiliation(s)
- T Shinano
- National Agriculture and Food Research Organization, National Agricultural Research Center for Hokkaido Region, 1-Hitsujigaoka, Toyohira-ku, Sapporo 062-8555, Japan.
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Tung YC, Hsiung YB, Ahn JK, Akune Y, Baranov V, Chen KF, Comfort J, Doroshenko M, Fujioka Y, Inagaki T, Ishibashi S, Ishihara N, Ishii H, Iwai E, Iwata T, Kato I, Kobayashi S, Komatsu S, Komatsubara TK, Kurilin AS, Kuzmin E, Lednev A, Lee HS, Lee SY, Lim GY, Ma J, Matsumura T, Moisseenko A, Morii H, Morimoto T, Nakajima Y, Nakano T, Nanjo H, Nishi N, Nix J, Nomura T, Nomachi M, Ogata R, Okuno H, Omata K, Perdue GN, Perov S, Podolsky S, Porokhovoy S, Sakashita K, Sasaki T, Sasao N, Sato H, Sato T, Sekimoto M, Shimogawa T, Shinkawa T, Stepanenko Y, Sugaya Y, Sugiyama A, Sumida T, Suzuki S, Tajima Y, Takita S, Tsamalaidze Z, Tsukamoto T, Wah Y, Watanabe H, Wu ML, Yamaga M, Yamanaka T, Yoshida HY, Yoshimura Y, Zheng Y. Search for the decayKL0→3γ. Int J Clin Exp Med 2011. [DOI: 10.1103/physrevd.83.031101] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Kwong W, Neilson AL, Hamilton RM, Chiu CC, Stephenson EA, Gross GJ, Soucie L, Kirsh JA, xian-hui Z, Bao-peng T, Jin-xin L, Yu Z, Yan-yi Z, Jiang-hua Z, Hirahara T, Sugawara Y, Suga C, Ako J, Momomura S, Ardashev AV, Zhelyakov EG, Konev AV, Rybachenko MS, Belenkov YN, Bai R, Di Biase L, Santangeli P, Saenz LC, Verma A, Sanchez J, Tondo C, Natale A, Safari F, Hajizadeh S, Mani A, Khoshbaten A, Foadoddini M, Forush SS, Bayat G, Kim SH, Chong D, Ching CK, Liew R, Galalardin, Khin MW, Teo WS, Chong D, Tan BY, Liew R, Ching CK, Teo WS, Sakamoto T, Al Mehairi M, Al Ghamdi SA, Dagriri K, Al Fagih A, Selvaraj R, Ezhumalai B, Satheesh S, Ajit A, Gobu P, Balachander J, Liu XQ, Zhou X, Yang G, Zhong GZ, Shi L, Tian Y, Li YB, Wang AH, Yang XC, Takenaka S, Ozaki H, Nakamura M, Otsuka M, Tsurumi Y, Nolker G, Gutleben KJ, Ritscher G, Sinha AM, Muntean B, Heintze J, Vogt J, Brachmann J, Horstkotte D, Katsuyuki T, Katsuyuki T, McGrew F, Johnson E, Coppess M, Fan I, Li S, Zhiyu L, Zengzhang L, Xianbin L, Yuehui Y, Min L, Shu-long Z, Dong C, Zhi-tao Z, Xian-jing W, Ying-xue D, Shu-Long Z, Dong C, Zhi-Tao Z, Xian-Jing W, Ying-Xue D, Liu P, Guo JH, Zhang Z, Li J, Liu HG, Zhang HC, Zvereva V, Rillig A, Meyerfeldt U, Jung W, Wei L, Qi G, Zhang Q, Xia Y, Doi A, Satomi K, Nakajima I, Makimoto H, Yokoyama T, Yamada Y, Okamura H, Noda T, Aiba T, Shimizu W, Aihara N, Kamakura S, Li Z, Zhao QY, Huang CX, Doi A, Satomi K, Nakajima I, Makimoto H, Yokoyama T, Yamada Y, Okamura H, Noda T, Aiba T, Shimizu W, Aihara N, Kamakura S, Min-Seok C, Jeong-Wook P, Young-Woong H, Sung-Eun P, Jae-Sun U, Yong-Seog O, Woo-Seung S, Ji-Hoon K, Seong-Won J, Man-Young L, Tae-Ho R, Uhm JS, Oh YS, Choi MS, Park JW, Ha YW, Park SE, Jang SW, Shin WS, Kim JH, Lee MY, Rho TH, Nielsen JB, Olesen MS, Tango M, Haunso S, Holst AG, Svendsen JH, Poci D, Thogersen AM, Riahi S, Linde P, Edvardsson N, Khoo CW, Krishnamoorthy S, Dwivedi G, Balakrishnan B, Lim HS, Lip GYH, Khoo CW, Krishnamoorthy S, Dwivedi G, Balakrishnan B, Lim HS, Lip GYH, D'Ascia S, D'ascia C, Marino V, Chiariello M, Santulli G, Music L, Anderson K, Benzaquen BS, Saponieri C, Yassin H, Fridman V, Vasavada BC, Turitto G, El-Sherif N, Saponieri C, Prabhu H, Yassin H, Fridman V, Huang Y, Vasavada BC, Turitto G, El-Sherif N, Ortega MC, Sosa ESH, Ugalde AN, Al Jamil A, Abu Siddique M, Haque KMHSS, Suga C, Hirahara T, Sugawara Y, Ako J, Momomura SI, Mlynarski R, Mlynarska A, Ilczuk G, Mlynarski R, Mlynarska A, Wilczek J, Mlynarska A, Mlynarski R, Wilczek J, Mlynarska A, Mlynarski R, Wilczek J, Sosnowski M, Kohno R, Abe H, Nagatomo T, Oginosawa Y, Minamiguchi H, Otsuji Y, Kohno R, Abe H, Minamiguchi H, Oginosawa Y, Nagatomo T, Otsuji Y, Minamiguchi H, Abe H, Kohno R, Oginosawa Y, Otsuji Y, Ekinci S, Yesil M, Bayata S, Vurgun VK, Arikan E, Postaci N, Xiaoqing R, Jielin P, Shu Z, Liang M, Fangzheng W, Takahashi K, Tokano T, Nakazato Y, Doi S, Shiozawa T, Konishi H, Hiki M, Kato Y, Komatsu S, Takahashi S, Kubota N, Tamura H, Suwa S, Ohki M, Katsumata T, Kizu K, Bito F, Sumiyoshi M, Juntendo HD, Yamada Y, Okamura H, Nakajima I, Doi A, Makimoto H, Yukoyama T, Noda T, Satomi K, Aiba T, Shimizu W, Aihara N, Kamakura S, Perna F, Leo M, Leccisotti L, Casella M, Pelargonio G, Lago M, Bencardino G, Narducci ML, Russo E, Santangeli P, Giordano A, Bellocci F, Song T, Yang J, Huang C, Zhang J, Huang C, Wu P, Yang J, Song T, Chen Y, Fan X, Wang T, Wang X, Tang Y, Wu P, Huang CX, Zhang J, Fan XR, Chen YJ, Li XW, Yang J, Song T, Chiu CC, Buescher T, Obias-Manno D, Yoo CJ, Huh J, Ortega MC, Nakanishi H, Hirata A, Wada M, Kashiwase K, Okada M, Ueda Y, Su D, Niu XL, Song AQ, Kohno R, Abe H, Minamiguchi H, Oginosawa Y, Nagatomo T, Otsuji Y, Fujii S, Yambe Y, Shiiba K, Sakakibara M, Takenaka S, Watanabe A, Wada T, Koide Y, Ikeda M, Toda H, Hashimoto K, Terasaka R, Nakahama M, Wada T, Watanabe A, Koide Y, Ikeda M, Toda H, Hashimoto K, Terasaka R, Nakahama M, Okada Y, Mizuno H, Ide H, Ueno T, Kogaki S, Ozono K, Nanto S, Statescu C, Bercea R, Sascau RA, Georgescu CA, Ortega MC, Athanas E, Ortega MC, Athanas E, Mironov NY, Bakalov SA, Jarova EA, Rodionova ES, Mironova NA, Kim J, Ahn MS, Han DC, Choo JTL, Chen CK, Tan TH, Ong KK, Kam R, Curnis A, Bontempi L, Coppola G, Cerini M, Vassanelli F, Lipari A, Gennaro F, Pagnoni C, Ashofair N, Cas LD, Gourineni V, Wong KL, Davoudi R, Hamid N, Chong D, Yew TB, Liew R, Keong CC, Siong TW, Fuke E, Shimizu H, Kimura S, Hao K, Watanabe R, Seo JB, Chung WY, Kim SH, Kim MA, Zo ZH, Krishinan S, Skuratova NA, Belyaeva LM, Bae MH, Lee JH, Lee HS, Yang DH, Park HS, Cho Y, Chae SC, Jun JE, Rychkova LV, Dolgikh VV, Zurbanova LV, Zurbanov AV, Aleksanyan A, Matevosyan A, Podosyan G, Zelveian P, Aleksanyan A, Podosyan G, Matevosyan A, Zelveian P, Choi HO, Nam GB, Kim YR, Kim KH, Kim SH, Choi KJ, Kim YH, Pakpahan HAP, Wei D, Qizhu T, Xiaofei Y, Kai G, Siting F, Ji H, Sato A, Tanabe Y, Hayashi Y, Yoshida T, Ito E, Chinushi M, Hasegawa K, Yagihara N, Iijima K, Izumi D, Watanabe H, Furushima H, Aizawa Y, Dong YX, Dong YX, Burnett JC, Chen HH, Sandberg S, Zhang Y, Chen PS, Cha YM, Mlynarski R, Mlynarska A, Wilczek J, Sosnowski M, Zhou XH, Tang BP, Li JX, Zhang Y, Li YD, Zhang JH, Arsenos P, Gatzoulis K, Gialernios T, Dilaveris P, Sideris S, Archontakis S, Tsiachris D, Christodoulos S, Feng Z, Baogui S, Li L, Ming L, Bai R, Di Biase L, Mohanty P, Hesselson AB, De Ruvo E, Gallagher PL, Minati M, Natale LCA, Tomassoni GF, Gan T, Tang B, Xu G, Li J, Zhang Y, Zhou X, Zhang Y, Hosoda J, Ishikawa T, Matsushita K, Matsumoto K, Kimura Y, Miyamoto M, Sugano T, Ishigami T, Uchino K, Kimura K, Umemura S, Nakajima I, Noda T, Shimizu W, Yokoyama T, Makimoto H, Doi A, Yamada Y, Okamura H, Satomi K, Aiba T, Aihara N, Kamakura S, Nakajima I, Noda T, Shimizu W, Kurita T, Yokoyama T, Makimoto H, Doi A, Yamada Y, Okamura H, Satomi K, Aiba T, Aihara N, Kamakura S, Wang T, Huang CX, Wang T, Huang CX, Ruan L, Zhang C, Cai S, Bai R, Liu N, Ruan Y, Quan X, Kang JK, Kim NY, Park SH, Lee JH, Park HS, Cho Y, Chae SC, Jun 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Auricchio A, Zeng C, Sterns L, Farooqi F, Kamdar R, Adhya S, Bayne S, Jackson T, Pollock L, Sterns L, Gall N, Murgatroyd F, Guo Y, Wang Y, Yang T, Zhu P, Liu H, Zhao Y, Zhang L, Gao W, Gao M. Poster presentation. Europace 2011. [DOI: 10.1093/europace/euq492] [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: 11/15/2022] Open
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Komatsu S, Murakami M, Fukumoto T, Hori Y, Hishikawa Y, Ku Y. Risk factors for survival and local recurrence after particle radiotherapy for single small hepatocellular carcinoma. Br J Surg 2011; 98:558-64. [PMID: 21246516 DOI: 10.1002/bjs.7397] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/19/2010] [Indexed: 12/26/2022]
Abstract
BACKGROUND Particle radiotherapy is a novel treatment for malignant tumours. The present study aimed to evaluate risk factors for overall survival and local control after particle radiotherapy of single small hepatocellular carcinoma (HCC), and to identify suitable candidates for this treatment. METHODS All patients with a single HCC smaller than 5 cm in diameter treated by particle radiotherapy between 2001 and 2008 were identified retrospectively from a prospectively collected database. Clinical outcomes and prognostic factors were analysed. RESULTS A total of 150 patients were included. Five-year overall survival and local control rates were 50.9 and 92.3 per cent respectively. Multivariable analysis revealed that several factors, including age and Child-Pugh classification, significantly influenced overall survival. Proximity to the digestive tract and Child-Pugh classification were independent risk factors for local recurrence. Other tumour factors including size, gross classification, previous treatment, macroscopic vascular invasion, and tumour location in relation to the diaphragm and large vessels did not influence local control rate. CONCLUSION Particle radiotherapy seems safe and effective, and may be a novel treatment for small HCC. Recurrences are more frequent when the tumour is located close to the gut.
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Affiliation(s)
- S Komatsu
- Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
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Fujii M, Honma M, Iinuma S, Kaneta K, Komatsu S, Sato K, Takahashi H, Ishida-Yamamoto A, Iizuka H. Recalcitrant facial pemphigus vulgaris: correlation of skin lesions with the ratio of antidesmoglein antibodies 1 and 3. Clin Exp Dermatol 2010; 36:284-7. [PMID: 21418270 DOI: 10.1111/j.1365-2230.2010.03920.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [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
Pemphigus vulgaris (PV) is an autoimmune bullous disease characterized by autoantibodies against desmogleins. We report a case of recalcitrant PV, which progressed from the mucosal to the mucocutaneous type, with a corresponding increase in anti-desmoglein (Dsg)1 and decrease in anti-Dsg3 antibody titres. Thus, the clinical features seemed to correlate with the ratio of anti-Dsg1 and 3. The patient also had anti-Dsg4 antibodies, which might be related to the nonscarring diffuse hair loss and marked facial involvement she also had. The patient did not respond to treatment with systemic steroid, ciclosporin, azathioprine, cyclophosphamide or double filtration plasmapheresis, and eventually died from fulminant thrombotic thrombocytopenic purpura of unknown cause.
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Affiliation(s)
- M Fujii
- Department of Dermatology, Asahikawa Medical College, Asahikawa, Japan.
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