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Hino M, Nakanishi M, Nomoto H. The expression system affects the binding affinity between p75NTR and proNGF. Biochem Biophys Rep 2024; 38:101702. [PMID: 38596407 PMCID: PMC11001769 DOI: 10.1016/j.bbrep.2024.101702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 03/13/2024] [Accepted: 03/28/2024] [Indexed: 04/11/2024] Open
Abstract
ProNGF (nerve growth factor) is a precursor of NGF and a signaling peptide exerting opposite effects on neuronal cells, i.e., apoptotic or neuritogenic. The conflicting biological activity of proNGF depends on the relative levels of two membrane receptors, TrkA and p75NTR. The effect of proNGF depends on the expression levels of these receptor proteins and their affinity to proNGF. Since the affinity of proteins has been studied with various recombinant proteins, it is worth comparing the affinity of these proteins within one experiment with the same method. This study examined the affinity between a recombinant proNGF and p75NTR expressed in common systems: bacterial, insect, and mammalian cells. The extracellular domain of p75NTR expressed in the insect or mammalian systems bound to native mature NGF, with a higher affinity for the insect receptor. The uncleavable proNGF was expressed in the three systems and they showed neuritogenic activity in PC12 cells. These recombinant proteins were used to compare their binding affinity to p75NTR. The insect p75NTR showed a higher binding affinity to proNGF than the mammalian p75NTR. The insect p75NTR bound proNGF from the insect system with the highest affinity, then from the mammalian system, and the lowest from the bacterial system. Conversely, the mammalian p75NTR showed no such preference for proNGF. Because the recombinant proNGF and p75NTR from different expression systems are supposed to have the same amino acid sequences, these differences in the affinity depend likely on their post-translational modifications, most probably on their glycans. Each recombinant proNGF and p75NTR in various expression systems exhibited different mobilities on SDS-PAGE and reactivities with glycosidases and lectins.
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Affiliation(s)
- Mami Hino
- Laboratory of Biochemistry, School of Pharmaceutical Sciences, Matsuyama University, Matsuyama, Ehime, 790-8578, Japan
| | - Masayuki Nakanishi
- Laboratory of Biochemistry, School of Pharmaceutical Sciences, Matsuyama University, Matsuyama, Ehime, 790-8578, Japan
| | - Hiroshi Nomoto
- Laboratory of Biochemistry, School of Pharmaceutical Sciences, Matsuyama University, Matsuyama, Ehime, 790-8578, Japan
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Nakanishi M, Takezaki R, Takeguchi M, Hino M, Nomoto H. Synthetic arrest of Man 5GlcNAc 2-PP-Dol increases procyclin mRNA level and induces cell death in the bloodstream form Trypanosoma brucei brucei. Parasitol Int 2024; 99:102831. [PMID: 38048903 DOI: 10.1016/j.parint.2023.102831] [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: 09/07/2023] [Revised: 11/21/2023] [Accepted: 11/23/2023] [Indexed: 12/06/2023]
Abstract
The biosynthesis of N-linked glycan precursors in the endoplasmic reticulum is important for many eukaryotes. In particular, the synthesis of Man5GlcNAc2-PP-dolichol (M5-DLO) at the cytoplasmic face of the endoplasmic reticulum is essential for maintaining cellular functions. In Trypanosoma brucei, the unicellular organism that causes African trypanosomiasis, homologs of the mannosyltransferases ALG2 and ALG11, which are involved in the biosynthesis of M5-DLO, are found, but the effects of their deletion on cells remain unknown. In this study, we generated conditional gene knockout strains of TbALG2 and TbALG11 in the bloodstream form T. brucei. Decreased N-linked glycosylation and cell death were observed in both strains under non-permissive conditions, with TbALG2 having a greater effect than TbALG11. Transcriptomic analysis of cells losing expression of TbALG11 showed decrease in mRNAs for enzymes involved in glucose metabolism and increase in mRNAs for procyclins and variant surface glycoproteins. These results indicate that the M5-DLO biosynthetic pathway is essential for the proliferation of the bloodstream form T. brucei. They also suggest that the failure of this pathway induces the transcriptomic change.
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Affiliation(s)
- Masayuki Nakanishi
- Laboratory of Biochemistry, School of Pharmaceutical Sciences, Matsuyama University, Matsuyama, Ehime 790-8578, Japan.
| | - Reo Takezaki
- Laboratory of Biochemistry, School of Pharmaceutical Sciences, Matsuyama University, Matsuyama, Ehime 790-8578, Japan
| | - Masaki Takeguchi
- Laboratory of Biochemistry, School of Pharmaceutical Sciences, Matsuyama University, Matsuyama, Ehime 790-8578, Japan
| | - Mami Hino
- Laboratory of Biochemistry, School of Pharmaceutical Sciences, Matsuyama University, Matsuyama, Ehime 790-8578, Japan
| | - Hiroshi Nomoto
- Laboratory of Biochemistry, School of Pharmaceutical Sciences, Matsuyama University, Matsuyama, Ehime 790-8578, Japan
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Carr MM, Gold AC, Harris A, Anarde K, Hino M, Sauers N, Da Silva G, Gamewell C, Nelson NG. Fecal Bacteria Contamination of Floodwaters and a Coastal Waterway From Tidally-Driven Stormwater Network Inundation. Geohealth 2024; 8:e2024GH001020. [PMID: 38655490 PMCID: PMC11036072 DOI: 10.1029/2024gh001020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 03/26/2024] [Accepted: 03/27/2024] [Indexed: 04/26/2024]
Abstract
Inundation of coastal stormwater networks by tides is widespread due to sea-level rise (SLR). The water quality risks posed by tidal water rising up through stormwater infrastructure (pipes and catch basins), out onto roadways, and back out to receiving water bodies is poorly understood but may be substantial given that stormwater networks are a known source of fecal contamination. In this study, we (a) documented temporal variation in concentrations of Enterococcus spp. (ENT), the fecal indicator bacteria standard for marine waters, in a coastal waterway over a 2-month period and more intensively during two perigean spring tide periods, (b) measured ENT concentrations in roadway floodwaters during tidal floods, and (c) explained variation in ENT concentrations as a function of tidal inundation, antecedent rainfall, and stormwater infrastructure using a pipe network inundation model and robust linear mixed effect models. We find that ENT concentrations in the receiving waterway vary as a function of tidal stage and antecedent rainfall, but also site-specific characteristics of the stormwater network that drains to the waterway. Tidal variables significantly explain measured ENT variance in the waterway, however, runoff drove higher ENT concentrations in the receiving waterway. Samples of floodwaters on roadways during both perigean spring tide events were limited, but all samples exceeded the threshold for safe public use of recreational waters. These results indicate that inundation of stormwater networks by tides could pose public health hazards in receiving water bodies and on roadways, which will likely be exacerbated in the future due to continued SLR.
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Affiliation(s)
- M. M. Carr
- Department of Biological and Agricultural EngineeringNorth Carolina State UniversityRaleighNCUSA
| | | | - A. Harris
- Department of Civil, Construction, and Environmental EngineeringNorth Carolina State UniversityRaleighNCUSA
| | - K. Anarde
- Department of Civil, Construction, and Environmental EngineeringNorth Carolina State UniversityRaleighNCUSA
| | - M. Hino
- Department of City and Regional PlanningUniversity of North Carolina—Chapel HillChapel HillNCUSA
| | - N. Sauers
- Department of Biological and Agricultural EngineeringNorth Carolina State UniversityRaleighNCUSA
| | - G. Da Silva
- Department of Biological and Agricultural EngineeringNorth Carolina State UniversityRaleighNCUSA
| | - C. Gamewell
- Department of Biological and Agricultural EngineeringNorth Carolina State UniversityRaleighNCUSA
| | - N. G. Nelson
- Department of Civil, Construction, and Environmental EngineeringNorth Carolina State UniversityRaleighNCUSA
- Center for Geospatial AnalyticsNorth Carolina State UniversityRaleighNCUSA
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Nakanishi M, Takeguchi M, Takezaki R, Hino M, Nomoto H. Loss of complex-type N-linked glycans attenuates maximum cell density and susceptibility to human serum of Trypanosoma brucei brucei. Parasitol Int 2024; 101:102874. [PMID: 38417735 DOI: 10.1016/j.parint.2024.102874] [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: 09/05/2023] [Revised: 01/09/2024] [Accepted: 02/24/2024] [Indexed: 03/01/2024]
Abstract
Trypanosoma brucei brucei is a parasitic protist that expresses cell surface proteins modified with complex-type N-linked glycan (NLG), like multicellular organisms. However, little is known about the role of complex-type NLG. In T. b. brucei, it has been shown that either one of the glycosyltransferases, TbGT11 or TbGT15, is sufficient to initiate the synthesis of complex-type NLG. To clarify the role of complex-type NLG, it is necessary to generate cells lacking both enzymes. Therefore, we deleted TbGT11 and TbGT15 from the genome of T. b. brucei for the phenotypic examination. The mutant strain grew in culture, with reduced maximum cell density; showed decreased susceptibility to normal human serum, which contains trypanolytic factors; and lacked uptake of the haptoglobin-hemoglobin complex. These data indicate that protein modification by complex-type NLG is not essential but is required for receptor function.
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Affiliation(s)
- Masayuki Nakanishi
- Laboratory of Biochemistry, School of Pharmaceutical Sciences, Matsuyama University, Matsuyama, Ehime 790-8578, Japan.
| | - Masaki Takeguchi
- Laboratory of Biochemistry, School of Pharmaceutical Sciences, Matsuyama University, Matsuyama, Ehime 790-8578, Japan
| | - Reo Takezaki
- Laboratory of Biochemistry, School of Pharmaceutical Sciences, Matsuyama University, Matsuyama, Ehime 790-8578, Japan
| | - Mami Hino
- Laboratory of Biochemistry, School of Pharmaceutical Sciences, Matsuyama University, Matsuyama, Ehime 790-8578, Japan.
| | - Hiroshi Nomoto
- Laboratory of Biochemistry, School of Pharmaceutical Sciences, Matsuyama University, Matsuyama, Ehime 790-8578, Japan.
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Nakanishi M, Hino M, Nomoto H. Trypanosoma brucei proliferates normally even after losing all S-adenosylhomocysteine hydrolase genes. Biochem Biophys Res Commun 2023; 686:149152. [PMID: 37926042 DOI: 10.1016/j.bbrc.2023.149152] [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: 09/29/2023] [Revised: 09/29/2023] [Accepted: 10/23/2023] [Indexed: 11/07/2023]
Abstract
S-adenosylhomocysteine (SAH) hydrolase is the enzyme responsible for breaking down SAH into adenosine and homocysteine. It has long been believed that a deficiency of this enzyme leads to SAH accumulation, subsequently inhibiting methyltransferases responsible for nucleic acids and proteins, which severely affects cell proliferation. To investigate whether targeting this enzyme could be a viable strategy to combat Trypanosoma brucei, the causative agent of human African trypanosomiasis, we created a null mutant of the SAH hydrolase gene in T. brucei using the Cre/loxP system and conducted a phenotype analysis. Surprisingly, the null mutant, where all five SAH hydrolase gene loci were deleted, exhibited normal proliferation despite the observed SAH accumulation. These findings suggest that inhibiting SAH hydrolase may not be an effective approach to suppressing T. brucei proliferation, making the enzyme a less promising target for antitrypanosome drug development.
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Affiliation(s)
- Masayuki Nakanishi
- Laboratory of Biochemistry, School of Pharmaceutical Sciences, Matsuyama University, Matsuyama, Ehime, 790-8578, Japan.
| | - Mami Hino
- Laboratory of Biochemistry, School of Pharmaceutical Sciences, Matsuyama University, Matsuyama, Ehime, 790-8578, Japan.
| | - Hiroshi Nomoto
- Laboratory of Biochemistry, School of Pharmaceutical Sciences, Matsuyama University, Matsuyama, Ehime, 790-8578, Japan.
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Plaster B, Adamek E, Allgeier B, Anaya J, Back H, Bagdasarova Y, Berguno D, Blatnik M, Boissevain J, Bowles T, Broussard L, Brown MP, Carr R, Clark D, Clayton S, Cude-Woods C, Currie S, Dees E, Ding X, Du S, Filippone B, García A, Geltenbort P, Hasan S, Hawari A, Hickerson K, Hill R, Hino M, Hoagland J, Hoedl S, Hogan G, Hona B, Hong R, Holley A, Ito T, Kawai T, Kirch K, Kitagaki S, Knecht A, Lamoreaux S, Liu CY, Liu J, Makela M, Mammei R, Martin J, Meier N, Melconian D, Mendenhall M, Moore S, Morris C, Mortensen R, Nepal S, Nouri N, Pattie R, Pérez Galván A, Phillips II D, Pichlmaier A, Picker R, Pitt M, Ramsey J, Rios R, Russell R, Sabourov K, Sallaska A, Salvat D, Saunders A, Schmid R, Seestrom S, Servicky C, Sharapov E, Sjue S, Slutsky S, Smith D, Sondheim W, Sun X, Swank C, Swift G, Tatar E, Teasdale W, Terai C, Tipton B, Utsuro M, Vogelaar R, VornDick B, Wang Z, Wehring B, Wexler J, Womack T, Wrede C, Xu Y, Yan H, Young A, Yuan J, Zeck B. Final results for the neutron β-asymmetry parameter A0 from the UCNA experiment. EPJ Web Conf 2019. [DOI: 10.1051/epjconf/201921904004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The UCNA experiment was designed to measure the neutron β-asymmetry parameter A0 using polarized ultracold neutrons (UCN). UCN produced via downscattering in solid deuterium were polarized via transport through a 7 T magnetic field, and then directed to a 1 T solenoidal electron spectrometer, where the decay electrons were detected in electron detector packages located on the two ends of the spectrometer. A value for A0 was then extracted from the asymmetry in the numbers of counts in the two detector packages. We summarize all of the results from the UCNA experiment, obtained during run periods in 2007, 2008–2009, 2010, and 2011–2013, which ultimately culminated in a 0.67% precision result for A0.
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Nakamae M, Nakamae H, Hashimoto M, Yoshikawa J, Nakane T, Koh H, Nakashima Y, Hirose A, Hino M. PB1932 PREDICTIVE POWERS OF VARIOUS CARDIOVASCULAR EXAMINATIONS FOR CARDIOVASCULAR OCCLUSION EVENTS IN CML PATIENTS RECEIVING TYROSINE KINASE INHIBITORS. Hemasphere 2019. [DOI: 10.1097/01.hs9.0000566224.20235.7f] [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: 11/25/2022] Open
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8
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Nakanishi M, Hino M, Yoshimura M, Amakura Y, Nomoto H. Identification of sinensetin and nobiletin as major antitrypanosomal factors in a citrus cultivar. Exp Parasitol 2019; 200:24-29. [PMID: 30898543 DOI: 10.1016/j.exppara.2019.03.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Revised: 11/28/2018] [Accepted: 03/17/2019] [Indexed: 01/06/2023]
Abstract
Cases of human African trypanosomiasis caused by infection with a protozoan parasite, Trypanosoma brucei, are decreasing due to enhanced surveillance and control. However, effective and safe treatments for this disease are still needed. In this study, we investigated the antitrypanosomal activity of citrus fruit peel. When 19 citrus cultivars were examined for activity against T. brucei in vitro, significant activities were observed in four closely related cultivars and a distantly related one. Among these five cultivars, "Setoka" was selected for identification of its active components due to exhibiting the highest activity. Solvent extraction and gel filtration followed by preparative thin-layer chromatography succeeded in isolating two compounds exhibiting IC50s of 4.8 and 2.4 μg/mL, respectively. The spectral data of these two compounds were well consistent with those of sinensetin and nobiletin belonging to the class of polymethoxyflavones. Authentic compounds also showed similar IC50s. These results indicate that the two polymethoxyflavones are the major active components involved in the inhibition of T. brucei proliferation and are abundant in Setoka cultivar peel compared with the levels in the other cultivars. Setoka peel and the naturally occurring polymethoxyflavones might serve as dietary components imparting resistance to T. brucei.
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Affiliation(s)
- Masayuki Nakanishi
- Laboratory of Biochemistry, College of Pharmaceutical Sciences, Matsuyama University, Matsuyama, Ehime, 790-8578, Japan.
| | - Mami Hino
- Laboratory of Biochemistry, College of Pharmaceutical Sciences, Matsuyama University, Matsuyama, Ehime, 790-8578, Japan
| | - Morio Yoshimura
- Department of Pharmacognosy, College of Pharmaceutical Sciences, Matsuyama University, Matsuyama, Ehime, 790-8578, Japan
| | - Yoshiaki Amakura
- Department of Pharmacognosy, College of Pharmaceutical Sciences, Matsuyama University, Matsuyama, Ehime, 790-8578, Japan
| | - Hiroshi Nomoto
- Laboratory of Biochemistry, College of Pharmaceutical Sciences, Matsuyama University, Matsuyama, Ehime, 790-8578, Japan
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Witzig T, Tobinai K, Rigacci L, Ikeda T, Vanazzi A, Hino M, Shi Y, Mayer J, Costa L, Bermudez Silva C, Zhu J, Belada D, Bouabdallah K, Kattan J, Kuruvilla J, Kim W, Larouche JF, Ogura M, Ozcan M, Fayad L, Wu C, Fan J, Louveau AL, Voi M, Cavalli F. Adjuvant everolimus in high-risk diffuse large B-cell lymphoma: final results from the PILLAR-2 randomized phase III trial. Ann Oncol 2018; 29:707-714. [DOI: 10.1093/annonc/mdx764] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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10
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Noro R, Kobayashi K, Usuki J, Hosomi Y, Nishitsuji M, Okamoto H, Ando M, Hino M, Hagiwara K, Miyanaga A, Seike M, Kubota K, Gemma A. Phase II study of efficacy of bevacizumab plus chemotherapy in management of malignant pleural effusion in non-squamous non-small cell lung cancer patients with malignant pleural effusion (MPE) unsuccessfully controlled by tube drainage or pleurodesis (NEJ-13-2 trial). Ann Oncol 2017. [DOI: 10.1093/annonc/mdx671.034] [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: 11/13/2022] Open
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11
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Ueda J, Yoshimura H, Shimizu K, Hino M, Kohara N. Combined visual and semi-quantitative assessment of 123I-FP-CIT SPECT for the diagnosis of dopaminergic neurodegenerative diseases. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.387] [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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Kitamura A, Kobayashi Y, Hattori Y, Watanabe K, Hino M, Kurahashi T, Miwa M, Kamimaki I, Nakagawa H. Evaluation of vaginal delivery for twin pregnancy. CLIN EXP OBSTET GYN 2017. [DOI: 10.12891/ceog3644.2017] [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: 11/01/2022]
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13
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Oda T, Hino M, Kitaguchi M, Geltenbort P, Kawabata Y. Pulsed neutron time-dependent intensity modulation for quasi-elastic neutron scattering spectroscopy. Rev Sci Instrum 2016; 87:105124. [PMID: 27802718 DOI: 10.1063/1.4965835] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Accepted: 10/08/2016] [Indexed: 06/06/2023]
Abstract
We propose a basic formula and demonstration for a high-resolution quasi-elastic neutron scattering (QENS) by combining the time-of-flight (TOF) method with Modulation of Intensity by Zero Effort (MIEZE) type neutron spin echo spectroscopy. The MIEZE technique has the potential to develop a unique approach to study on slow dynamics of condensed matter; however, the energy resolution is limited owing to the hypersensitivity of the MIEZE signal contrast to the echo condition, which is strongly affected by the alignment of the instruments and the sample. The narrow allowance of the optimal alignment is a major obstacle to the wide use of this technique. Combining the TOF method with MIEZE (TOF-MIEZE), the hypersensitivity of MIEZE signals is significantly alleviated with a short pulsed beam. This robustness is very useful to optimize experimental alignments and enables accurate measurements of QENS. The experimental results demonstrate the characteristic of the TOF-MIEZE technique and are well described by the formula presented in this study.
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Affiliation(s)
- T Oda
- Department of Nuclear Engineering, Kyoto University, Kyoto 615-8540, Japan
| | - M Hino
- Research Reactor Institute, Kyoto University, Kumatori 590-0494, Japan
| | - M Kitaguchi
- Department of Physics, Nagoya University, Nagoya 464-8602, Japan
| | | | - Y Kawabata
- Research Reactor Institute, Kyoto University, Kumatori 590-0494, Japan
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Nanno S, Nakane T, Okamura H, Nishimoto M, Koh H, Nakamae H, Ohsawa M, Yarita K, Kamei K, Hino M. DisseminatedHormographiella aspergillatainfection with involvement of the lung, brain, and small intestine following allogeneic hematopoietic stem cell transplantation: case report and literature review. Transpl Infect Dis 2016; 18:611-6. [DOI: 10.1111/tid.12561] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2016] [Accepted: 04/02/2016] [Indexed: 11/30/2022]
Affiliation(s)
- S. Nanno
- Hematology; Graduate School of Medicine; Osaka City University; Osaka Japan
| | - T. Nakane
- Hematology; Graduate School of Medicine; Osaka City University; Osaka Japan
| | - H. Okamura
- Hematology; Graduate School of Medicine; Osaka City University; Osaka Japan
| | - M. Nishimoto
- Hematology; Graduate School of Medicine; Osaka City University; Osaka Japan
| | - H. Koh
- Hematology; Graduate School of Medicine; Osaka City University; Osaka Japan
| | - H. Nakamae
- Hematology; Graduate School of Medicine; Osaka City University; Osaka Japan
| | - M. Ohsawa
- Diagnostic Pathology; Graduate School of Medicine; Osaka City University; Osaka Japan
| | - K. Yarita
- Medical Mycology Research Center; Chiba University; Chiba Japan
| | - K. Kamei
- Medical Mycology Research Center; Chiba University; Chiba Japan
| | - M. Hino
- Hematology; Graduate School of Medicine; Osaka City University; Osaka Japan
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15
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Takeda K, Yamaguchi Y, Hino M, Kato F. Potentiation of Acetylcholine-Mediated Facilitation of Inhibitory Synaptic Transmission by an Azaindolizione Derivative, ZSET1446 (ST101), in the Rat Hippocampus. ACTA ACUST UNITED AC 2015; 356:445-55. [DOI: 10.1124/jpet.115.229021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2015] [Accepted: 11/16/2015] [Indexed: 11/22/2022]
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16
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Koh S, Yamada K, Nishimoto M, Hayashi Y, Koh H, Nakashima Y, Nakane T, Hirose A, Nakamae M, Kakeya H, Hino M, Nakamae H. Effectiveness of antibacterial prophylaxis with non-absorbable polymyxin B compared to levofloxacin after allogeneic hematopoietic stem cell transplantation. Transpl Infect Dis 2015; 17:647-54. [PMID: 26134140 DOI: 10.1111/tid.12416] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2015] [Revised: 04/25/2015] [Accepted: 06/22/2015] [Indexed: 12/31/2022]
Abstract
BACKGROUND Fluoroquinolones are widely used for antibacterial prophylaxis during neutropenia following hematopoietic stem cell transplantation (HSCT). Nevertheless, data are inadequate as to whether fluoroquinolones decrease mortality rate compared with other antibiotics. METHODS We retrospectively compared the efficacy of antibacterial prophylaxis using non-absorbable polymyxin B (PB) (n = 106) or systemic levofloxacin (LVFX) (n = 140) after allogeneic SCT at our institute between 2004 and 2013. RESULTS No significant difference was observed between the 2 groups in the cumulative incidences of failure of prophylaxis (P = 0.21), clinically documented infections (P = 0.70), or non-relapse mortality within the first 100 days after transplantation (P = 0.42). With bacteremia, the rate of resistance to LVFX was 82% in the PB group and 100% in the LVFX group (P = 0.41). Also, no significant difference was found in overall survival between the 2 groups (P = 0.78). CONCLUSION Our results indicate no difference in the effectiveness of antibacterial prophylaxis between systemic antibiotic LVFX and non-absorbable antibiotic PB.
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Affiliation(s)
- S Koh
- Hematology, Graduate School of Medicine, Osaka City University, Osaka, Japan
| | - K Yamada
- Infection Control Science, Graduate School of Medicine, Osaka City University, Osaka, Japan
| | - M Nishimoto
- Hematology, Graduate School of Medicine, Osaka City University, Osaka, Japan
| | - Y Hayashi
- Hematology, Graduate School of Medicine, Osaka City University, Osaka, Japan
| | - H Koh
- Hematology, Graduate School of Medicine, Osaka City University, Osaka, Japan
| | - Y Nakashima
- Hematology, Graduate School of Medicine, Osaka City University, Osaka, Japan
| | - T Nakane
- Hematology, Graduate School of Medicine, Osaka City University, Osaka, Japan
| | - A Hirose
- Hematology, Graduate School of Medicine, Osaka City University, Osaka, Japan
| | - M Nakamae
- Hematology, Graduate School of Medicine, Osaka City University, Osaka, Japan
| | - H Kakeya
- Infection Control Science, Graduate School of Medicine, Osaka City University, Osaka, Japan
| | - M Hino
- Hematology, Graduate School of Medicine, Osaka City University, Osaka, Japan
| | - H Nakamae
- Hematology, Graduate School of Medicine, Osaka City University, Osaka, Japan
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Shinohara S, Kikuchi M, Suehiro A, Kishimoto I, Harada H, Hino M, Ishihara T. Characteristics and prognosis of patients with thyroglobulin-positive and radioactive iodine whole-body scan-negative differentiated thyroid carcinoma. Jpn J Clin Oncol 2015; 45:427-32. [DOI: 10.1093/jjco/hyv021] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2014] [Accepted: 01/28/2015] [Indexed: 11/14/2022] Open
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Nishimoto M, Nakamae H, Nakamae M, Hirose A, Hagihara K, Koh H, Nakane T, Terada Y, Hino M. Feasibility of umbilical cord blood transplantation with a myeloablative, reduced toxicity-conditioning regimen. Bone Marrow Transplant 2014; 49:980-1. [PMID: 24710565 DOI: 10.1038/bmt.2014.60] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- M Nishimoto
- Hematology, Graduate School of Medicine, Osaka City University, Osaka, Japan
| | - H Nakamae
- Hematology, Graduate School of Medicine, Osaka City University, Osaka, Japan
| | - M Nakamae
- Hematology, Graduate School of Medicine, Osaka City University, Osaka, Japan
| | - A Hirose
- Hematology, Graduate School of Medicine, Osaka City University, Osaka, Japan
| | - K Hagihara
- Hematology, Graduate School of Medicine, Osaka City University, Osaka, Japan
| | - H Koh
- Hematology, Graduate School of Medicine, Osaka City University, Osaka, Japan
| | - T Nakane
- Hematology, Graduate School of Medicine, Osaka City University, Osaka, Japan
| | - Y Terada
- Hematology, Graduate School of Medicine, Osaka City University, Osaka, Japan
| | - M Hino
- Hematology, Graduate School of Medicine, Osaka City University, Osaka, Japan
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Hino M, Zhang J, Takagi H, Miyoshi T, Uchiumi T, Nakashima T, Kakuta Y, Kimura M. Characterization of putative toxin/antitoxin systems in Vibrio parahaemolyticus. J Appl Microbiol 2014; 117:185-95. [PMID: 24698443 DOI: 10.1111/jam.12513] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2014] [Revised: 03/16/2014] [Accepted: 03/27/2014] [Indexed: 11/29/2022]
Abstract
AIM To obtain more information about the toxin/antitoxin (TA) systems in the Vibrio genus and also to examine their involvement in the induction of a viable but nonculturable (VBNC) state, we searched homologues of the Escherichia coli TA systems in the Vibrio parahaemolyticus genome. METHODS AND RESULTS We found that a gene cluster, vp1842/vp1843, in the V. parahaemolyticus genome database has homology to that encoding the E. coli TA proteins, DinJ/YafQ. Expression of the putative toxin gene vp1843 in E. coli cells strongly inhibited the cell growth, while coexpression with the putative antitoxin gene vp1842 neutralized this effect. Mutational analysis identified Lys37 and Pro45 in the gene product VP1843 of vp1843 as crucial residues for the growth retardation of E. coli cells. VP1843, unlike the E. coli toxin YafQ, has no protein synthesis inhibitory activity, and that instead the expression of vp1843 in E. coli caused morphological change of the cells. CONCLUSIONS The gene cluster vp1842/vp1843 encodes the V. parahaemolyticus TA system; VP1843 inhibits cell growth, whereas VP1842 serves as an antitoxin by forming a stable complex with VP1843. SIGNIFICANCE AND IMPACT OF THE STUDY The putative toxin, VP1843, may be involved in the induction of the VBNC state in V. parahaemolyticus by inhibiting cell division.
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Affiliation(s)
- M Hino
- Department of Health and Nutrition Sciences, Faculty of Health and Nutrition, Nishikyushu University, Kanzaki-shi, Saga, Japan
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Ichikawa G, Komamiya S, Kamiya Y, Minami Y, Tani M, Geltenbort P, Yamamura K, Nagano M, Sanuki T, Kawasaki S, Hino M, Kitaguchi M. Observation of the spatial distribution of gravitationally bound quantum states of ultracold neutrons and its derivation using the Wigner function. Phys Rev Lett 2014; 112:071101. [PMID: 24579585 DOI: 10.1103/physrevlett.112.071101] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2013] [Indexed: 06/03/2023]
Abstract
Ultracold neutrons (UCNs) can be bound by the potential of terrestrial gravity and a reflecting mirror. The wave function of the bound state has characteristic modulations. We carried out an experiment to observe the vertical distribution of the UCNs above such a mirror at the Institut Laue-Langevin in 2011. The observed modulation is in good agreement with that prediction by quantum mechanics using the Wigner function. The spatial resolution of the detector system is estimated to be 0.7 μm. This is the first observation of gravitationally bound states of UCNs with submicron spatial resolution.
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Affiliation(s)
- G Ichikawa
- Department of Physics, Graduate School of Science, and International Center for Elementary Particle Physics, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - S Komamiya
- Department of Physics, Graduate School of Science, and International Center for Elementary Particle Physics, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Y Kamiya
- Department of Physics, Graduate School of Science, and International Center for Elementary Particle Physics, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Y Minami
- Department of Physics, Graduate School of Science, and International Center for Elementary Particle Physics, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - M Tani
- Department of Physics, Graduate School of Science, and International Center for Elementary Particle Physics, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - P Geltenbort
- Institut Laue-Langevin, BP 156, 6, rue Jules Horowitz, 38042 Grenoble Cedex 9, France
| | - K Yamamura
- Research Center for Ultra-Precision Science and Technology, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - M Nagano
- Research Center for Ultra-Precision Science and Technology, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - T Sanuki
- Department of Physics, Graduate School of Science, Tohoku University, 6-3, Aramaki Aza-Aoba, Aoba-ku, Sendai 980-8578, Japan
| | - S Kawasaki
- High Energy Accelerator Research Organization, Institute of Particle and Nuclear Studies, 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - M Hino
- Kyoto University Research Reactor Institute, 2, Asahiro-Nishi, Kumatori-cho, Sennan-gun, Osaka 590-0494, Japan
| | - M Kitaguchi
- Department of Physics, Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan
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Nakanishi M, Karasudani M, Shiraishi T, Hashida K, Hino M, Ferguson MAJ, Nomoto H. TbGT8 is a bifunctional glycosyltransferase that elaborates N-linked glycans on a protein phosphatase AcP115 and a GPI-anchor modifying glycan in Trypanosoma brucei. Parasitol Int 2014; 63:513-8. [PMID: 24508870 PMCID: PMC4003530 DOI: 10.1016/j.parint.2014.01.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2013] [Revised: 12/25/2013] [Accepted: 01/20/2014] [Indexed: 11/01/2022]
Abstract
The procyclic form of Trypanosoma brucei expresses procyclin surface glycoproteins with unusual glycosylphosphatidylinositol-anchor side chain structures that contain branched N-acetyllactosamine and lacto-N-biose units. The glycosyltransferase TbGT8 is involved in the synthesis of the branched side chain through its UDP-GlcNAc: βGal β1-3N-acetylglucosaminyltransferase activity. Here, we explored the role of TbGT8 in the mammalian bloodstream form of the parasite with a tetracycline-inducible conditional null T. brucei mutant for TbGT8. Under non-permissive conditions, the mutant showed significantly reduced binding to tomato lectin, which recognizes poly-N-acetyllactosamine-containing glycans. Lectin pull-down assays revealed differences between the wild type and TbGT8 null-mutant T. brucei, notably the absence of a broad protein band with an approximate molecular weight of 110 kDa in the mutant lysate. Proteomic analysis revealed that the band contained several glycoproteins, including the acidic ecto-protein phosphatase AcP115, a stage-specific glycoprotein in the bloodstream form of T. brucei. Western blotting with an anti-AcP115 antibody revealed that AcP115 was approximately 10kDa smaller in the mutant. Enzymatic de-N-glycosylation demonstrated that the underlying protein cores were the same, suggesting that the 10-kDa difference was due to differences in N-linked glycans. Immunofluorescence microscopy revealed the colocalization of hemagglutinin epitope-tagged TbGT8 and the Golgi-associated protein GRASP. These data suggest that TbGT8 is involved in the construction of complex poly-N-acetyllactosamine-containing type N-linked and GPI-linked glycans in the Golgi of the bloodstream and procyclic parasite forms, respectively.
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Affiliation(s)
- Masayuki Nakanishi
- Laboratory of Biochemistry, College of Pharmaceutical Sciences, Matsuyama University, Matsuyama, Ehime 790-8578, Japan.
| | - Moe Karasudani
- Laboratory of Biochemistry, College of Pharmaceutical Sciences, Matsuyama University, Matsuyama, Ehime 790-8578, Japan
| | - Takahiro Shiraishi
- Laboratory of Biochemistry, College of Pharmaceutical Sciences, Matsuyama University, Matsuyama, Ehime 790-8578, Japan
| | - Kazunori Hashida
- Laboratory of Biochemistry, College of Pharmaceutical Sciences, Matsuyama University, Matsuyama, Ehime 790-8578, Japan
| | - Mami Hino
- Laboratory of Biochemistry, College of Pharmaceutical Sciences, Matsuyama University, Matsuyama, Ehime 790-8578, Japan
| | - Michael A J Ferguson
- Division of Biological Chemistry and Drug Discovery, College of Life Sciences, University of Dundee, Dundee DD1 5EH, United Kingdom
| | - Hiroshi Nomoto
- Laboratory of Biochemistry, College of Pharmaceutical Sciences, Matsuyama University, Matsuyama, Ehime 790-8578, Japan
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Hong H, Fujitani Y, Yamaoka S, Hino M. Nsclc Treatment with Bevacizumab: A Retrospective Analysis of 32 Patients at a Single Center. Ann Oncol 2013. [DOI: 10.1093/annonc/mdt460.22] [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: 11/13/2022] Open
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Kodera Y, Yamamoto K, Harada M, Morishima Y, Dohy H, Asano S, Ikeda Y, Nakahata T, Imamura M, Kawa K, Kato S, Tanimoto M, Kanda Y, Tanosaki R, Shiobara S, Kim SW, Nagafuji K, Hino M, Miyamura K, Suzuki R, Hamajima N, Fukushima M, Tamakoshi A, Halter J, Schmitz N, Niederwieser D, Gratwohl A. PBSC collection from family donors in Japan: a prospective survey. Bone Marrow Transplant 2013; 49:195-200. [PMID: 24076552 DOI: 10.1038/bmt.2013.147] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2012] [Revised: 07/26/2013] [Accepted: 07/31/2013] [Indexed: 12/25/2022]
Abstract
Severe adverse events (SAE) and late hematological malignancies have been reported after PBSC donation. No prospective data on incidence and risk factors have been available for family donors so far. The Japan Society for Hematopoietic Cell Transplantation (JSHCT) introduced therefore in 2000 a mandatory registration system. It defined standards for donor eligibility and asked harvest centers to report any SAE immediately. All donors were examined at day 30 and were to be contacted once each year for a period of 5 years. Acute SAEs within day 30 were reported from 47/3264 donations (1.44%) with 14 events considered as unexpected and severe (0.58%). No donor died within 30 days. Late SAEs were reported from 39/1708 donors (2.3%). The incidence of acute SAEs was significantly higher among donors not matching the JSHCT standards (P=0.0023). Late hematological malignancies in PBSC donors were not different compared with a retrospective cohort of BM donors (N:1/1708 vs N:2/5921; P=0.53). In conclusion, acute and late SAEs do occur in PBSC donors at relatively low frequency but risk factors can be defined.
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Nishimoto M, Nakamae H, Watanabe K, Koh H, Nakane T, Ohsawa M, Arakawa T, Hino M. Successful Treatment of Both Acute Leukemia and Active Crohn's Disease After Allogeneic Hematopoietic Stem Cell Transplantation Using Reduced-Intensity Conditioning With Fludarabine and Busulfan: A Case Report. Transplant Proc 2013; 45:2854-7. [DOI: 10.1016/j.transproceed.2013.03.049] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2012] [Accepted: 03/06/2013] [Indexed: 11/16/2022]
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26
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Maeda T, Hosen N, Fukushima K, Tsuboi A, Morimoto S, Matsui T, Sata H, Fujita J, Hasegawa K, Nishida S, Nakata J, Nakae Y, Takashima S, Nakajima H, Fujiki F, Tatsumi N, Kondo T, Hino M, Oji Y, Oka Y, Kanakura Y, Kumanogoh A, Sugiyama H. Maintenance of complete remission after allogeneic stem cell transplantation in leukemia patients treated with Wilms tumor 1 peptide vaccine. Blood Cancer J 2013; 3:e130. [PMID: 23912610 PMCID: PMC3763383 DOI: 10.1038/bcj.2013.29] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Affiliation(s)
- T Maeda
- Department of Hematology and Oncology, Osaka University Graduate School of Medicine, Osaka, Japan
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Yamamoto H, Mizutani M, Yamada K, Iwaizono H, Takayama K, Hino M, Kudo T, Ohta H, Kida K, Morimura S. Characteristics of aromatic compound production using newshochuyeast MF062 isolated fromshochumash. J Inst Brew 2013. [DOI: 10.1002/jib.57] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- H. Yamamoto
- Miyazaki Prefectural Food Research and Development Centre; 16500-2 Higashikaminaka Sadowaracho, Miyazaki City Miyazaki 880-0303 Japan
- Graduate School of Science and Technology; Kumamoto University; 2-39-1 Kurokami Chuo-ku, Kumamoto City Kumamoto 860-8555 Japan
| | - M. Mizutani
- Miyazaki Prefectural Food Research and Development Centre; 16500-2 Higashikaminaka Sadowaracho, Miyazaki City Miyazaki 880-0303 Japan
| | - K. Yamada
- Miyazaki Prefectural Food Research and Development Centre; 16500-2 Higashikaminaka Sadowaracho, Miyazaki City Miyazaki 880-0303 Japan
| | - H. Iwaizono
- Miyazaki Prefectural Food Research and Development Centre; 16500-2 Higashikaminaka Sadowaracho, Miyazaki City Miyazaki 880-0303 Japan
| | - K. Takayama
- Miyazaki Prefectural Food Research and Development Centre; 16500-2 Higashikaminaka Sadowaracho, Miyazaki City Miyazaki 880-0303 Japan
| | - M. Hino
- Miyazaki Prefectural Food Research and Development Centre; 16500-2 Higashikaminaka Sadowaracho, Miyazaki City Miyazaki 880-0303 Japan
| | - T. Kudo
- Miyazaki Prefectural Food Research and Development Centre; 16500-2 Higashikaminaka Sadowaracho, Miyazaki City Miyazaki 880-0303 Japan
| | - H. Ohta
- Graduate School of Science and Technology; Kumamoto University; 2-39-1 Kurokami Chuo-ku, Kumamoto City Kumamoto 860-8555 Japan
| | - K. Kida
- Graduate School of Science and Technology; Kumamoto University; 2-39-1 Kurokami Chuo-ku, Kumamoto City Kumamoto 860-8555 Japan
| | - S. Morimura
- Graduate School of Science and Technology; Kumamoto University; 2-39-1 Kurokami Chuo-ku, Kumamoto City Kumamoto 860-8555 Japan
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28
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Kim SW, Yoon SS, Suzuki R, Matsuno Y, Yi HG, Yoshida T, Imamura M, Wake A, Miura K, Hino M, Ishikawa T, Kim JS, Maeda Y, Lee JJ, Kang HJ, Lee HS, Lee JH, Izutsu K, Fukuda T, Kim CW, Yoshino T, Ohshima K, Nakamura S, Nagafuji K, Suzumiya J, Harada M, Kim CS. Comparison of outcomes between autologous and allogeneic hematopoietic stem cell transplantation for peripheral T-cell lymphomas with central review of pathology. Leukemia 2012. [DOI: 10.1038/leu.2012.321] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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29
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Hong H, Fujitani Y, Yamamura R, Araki T, Takeoka Y, Kosaka S, Ohta K, Fukuda H, Hayashi T, Hino M. A Case of Squamous Cell Carcinoma of Anal Canal Occurring 10 Years after Hysterectomy for Uterine Cervical Cancer. Ann Oncol 2012. [DOI: 10.1016/s0923-7534(20)32457-1] [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] Open
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30
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Nishimoto M, Nakamae H, Koh H, Nakane T, Nakamae M, Hirose A, Hagihara K, Nakao Y, Terada Y, Ohsawa M, Hino M. Risk factors affecting cardiac left-ventricular hypertrophy and systolic and diastolic function in the chronic phase of allogeneic hematopoietic cell transplantation. Bone Marrow Transplant 2012; 48:581-6. [PMID: 23528643 DOI: 10.1038/bmt.2012.179] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Chronic impairment of cardiac function can be an important health risk and impair the quality of life, and may even be life-threatening for long-term survivors of allogeneic hematopoietic cell transplantation (HCT). However, risk factors for and/or the underlying mechanism of cardiac dysfunction in the chronic phase of HCT are still not fully understood. We retrospectively investigated factors affecting cardiac function and left-ventricular hypertrophy (LVH) in the chronic phase of HCT. Sixty-three recipients who survived for >1 year after receiving HCT were evaluated using echocardiography. Based on simple linear regression models, high-dose TBI-based conditioning was significantly associated with a decrease in left-ventricular ejection fraction and the early peak flow velocity/atrial peak flow velocity ratio, following HCT (coefficient=-5.550, P=0.02 and coefficient=-0.268, P=0.02, respectively). These associations remained significant with the use of multiple linear regression models. Additionally, the serum ferritin (s-ferritin) level before HCT was found to be a significant risk factor for LVH on multivariable logistic analysis (P=0.03). In conclusion, our study demonstrated that a myeloablative regimen, especially one that involved high-dose TBI, impaired cardiac function, and that a high s-ferritin level might be associated with the development of LVH in the chronic phase of HCT.
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Affiliation(s)
- M Nishimoto
- Hematology, Graduate School of Medicine, Osaka City University, Osaka, Japan
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31
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Ichihara H, Nakamae H, Hirose A, Nakane T, Koh H, Hayashi Y, Nisimoto M, Nakamae M, Terada Y, Koh S, Yoshimura T, Aimoto M, Manabe M, Hagiwara K, Hino M. Immunoglobulin Prophylaxis against Cytomegalovirus Infection in Patients at High Risk Ofinfection Following Allogeneic Hematopoietic Cell Transplantation. Ann Oncol 2012. [DOI: 10.1016/s0923-7534(20)32538-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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32
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Akazawa Y, Terada Y, Yamane T, Tanaka S, Aimoto M, Koh H, Nakane T, Koh KR, Nakamae H, Ohsawa M, Wakasa K, Hino M. Fatal BK virus pneumonia following stem cell transplantation. Transpl Infect Dis 2012; 14:E142-6. [PMID: 22998078 DOI: 10.1111/tid.12011] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2011] [Revised: 05/14/2012] [Accepted: 06/14/2012] [Indexed: 12/16/2022]
Abstract
We report the case of a 39-year-old male patient who died of severe BK virus (BKV) pneumonia 168 days after hematopoietic stem cell transplantation (HSCT) for acute lymphoblastic leukemia. After suffering from BKV-associated late-onset hemorrhagic cystitis (HC) with long-term sustained BKV viremia, he died of rapidly progressive pneumonia. On autopsy, numerous viral intranuclear inclusions were seen in his lungs and bladder. An immunohistochemical examination of his lungs was positive for simian virus 40. Based on these pathological results and the high sustained BKV viral load in his blood, we reached a diagnosis of BKV pneumonia. Viral infection can occasionally become life threatening among HSCT recipients. It is widely known that BKV can cause late-onset HC, but BKV-associated pneumonia is rare. Because of its rapid progression and poor prognosis, it is difficult to make an antemortem diagnosis of BKV pneumonia. A treatment strategy for BKV pneumonia also needs to be formulated. Similar to other viral pathogens, BKV can cause pneumonia and the clinician should therefore be aware of it in immunocompromised patients.
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Affiliation(s)
- Y Akazawa
- Hematology, Graduate School of Medicine, Osaka City University, Osaka, Japan
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Ichihara H, Nakamae H, Hirose A, Nakane T, Koh H, Hayashi Y, Nishimoto M, Nakamae M, Yoshida M, Bingo M, Okamura H, Aimoto M, Manabe M, Hagihara K, Terada Y, Nakao Y, Hino M. Immunoglobulin prophylaxis against cytomegalovirus infection in patients at high risk of infection following allogeneic hematopoietic cell transplantation. Transplant Proc 2012; 43:3927-32. [PMID: 22172874 DOI: 10.1016/j.transproceed.2011.08.104] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2011] [Revised: 08/15/2011] [Accepted: 08/31/2011] [Indexed: 11/28/2022]
Abstract
Reports on the efficacy of intravenous immunoglobulin (IVIG) prophylaxis against cytomegalovirus (CMV) infection after allogeneic hematopoietic cell transplantation (HCT) have often sparked controversy. In addition, we are not aware of any study that has examined whether prophylaxis with IVIG affects the incidence of CMV infection in high-risk patients--those who are elderly or have received human leukocyte antigen (HLA) mismatched HCT. In the present open-label, phase II study, we addressed this question. We enrolled 106 patients in the study. The cumulative incidences of CMV infection at 100 days after HCT were similar in the intervention and the control groups (68% and 64%, P=.89; 89% and 87%, P=.79, respectively, for patients 55 years or older and those who received HLA-mismatched HCT). In those who received HLA-mismatched HCT, 1-year overall survival after HCT was 46% in the intervention group and 40% in the control group (P=.31); for age≥55 years, the corresponding values were 46% and 40% (P=.27). Our data showed that prophylaxis with regular polyvalent IVIG did not affect the incidence of CMV infections or survival among older patients or those who receive HLA-mismatched HCT.
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Affiliation(s)
- H Ichihara
- Hematology, Graduate School of Medicine, Osaka City University, Osaka, Japan
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Suzuki Y, Hino M, Shirai K, Yoshida Y, Mizui T, Hanamura K, Shirao T, Nakano T. X-ray Irradiation Induces Acute Depolymerization of Axonal and Dendritic Microfilaments in Cultured Neuron. Int J Radiat Oncol Biol Phys 2011. [DOI: 10.1016/j.ijrobp.2011.06.1276] [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: 11/25/2022]
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35
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Torikai N, Yamada NL, Sagehashi H, Sugita T, Goko S, Furusaka M, Higashi Y, Hino M, Fujiwara T, Takahashi H. Development of a Physically Bent Cylindroid Mirror for Beam Focusing for a Pulsed Neutron Reflectometer. ACTA ACUST UNITED AC 2011. [DOI: 10.1088/1757-899x/24/1/012016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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36
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Yatsushiro S, Akamine R, Yamamura S, Hino M, Kajimoto K, Abe K, Abe H, Kido JI, Tanaka M, Shinohara Y, Baba Y, Ooie T, Kataoka M. Quantitative analysis of serum procollagen type I C-terminal propeptide by immunoassay on microchip. PLoS One 2011; 6:e18807. [PMID: 21533125 PMCID: PMC3080136 DOI: 10.1371/journal.pone.0018807] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2010] [Accepted: 03/13/2011] [Indexed: 01/05/2023] Open
Abstract
Background Sandwich enzyme-linked immunosorbent assay (ELISA) is one of the most frequently employed assays for clinical diagnosis, since this enables the investigator to identify specific protein biomarkers. However, the conventional assay using a 96-well microtitration plate is time- and sample-consuming, and therefore is not suitable for rapid diagnosis. To overcome these drawbacks, we performed a sandwich ELISA on a microchip. Methods and Findings The microchip was made of cyclic olefin copolymer with straight microchannels that were 300 µm wide and 100 µm deep. For the construction of a sandwich ELISA for procollagen type I C-peptide (PICP), a biomarker for bone formation, we used a piezoelectric inkjet printing system for the deposition and fixation of the 1st anti-PICP antibody on the surface of the microchannel. After the infusion of the mixture of 2.0 µl of peroxidase-labeled 2nd anti-PICP antibody and 0.4 µl of sample to the microchannel and a 30-min incubation, the substrate for peroxidase was infused into the microchannel; and the luminescence intensity of each spot of 1st antibody was measured by CCD camera. A linear relationship was observed between PICP concentration and luminescence intensity over the range of 0 to 600 ng/ml (r2 = 0.991), and the detection limit was 4.7 ng/ml. Blood PICP concentrations of 6 subjects estimated from microchip were compared with results obtained by the conventional method. Good correlation was observed between methods according to simple linear regression analysis (R2 = 0.9914). The within-day and between-days reproducibilities were 3.2–7.4 and 4.4–6.8%, respectively. This assay reduced the time for the antigen-antibody reaction to 1/6, and the consumption of samples and reagents to 1/50 compared with the conventional method. Conclusion This assay enabled us to determine serum PICP with accuracy, high sensitivity, time saving ability, and low consumption of sample and reagents, and thus will be applicable to clinic diagnosis.
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Affiliation(s)
- Shouki Yatsushiro
- Health Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Japan
| | - Rie Akamine
- Health Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Japan
| | - Shohei Yamamura
- Health Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Japan
| | - Mami Hino
- Health Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Japan
| | - Kazuaki Kajimoto
- Health Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Japan
| | - Kaori Abe
- Health Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Japan
| | - Hiroko Abe
- Health Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Japan
| | - Jun-ichi Kido
- Division of Medico-Dental Dynamics and Reconstruction, Department of Periodontology and Endodontology, Oral and Maxillofacial Dentistry, Institute of Health Biosciences, University of Tokushima, Tokushima, Japan
| | - Masato Tanaka
- Health Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Japan
| | - Yasuo Shinohara
- Faculty of Pharmaceutical Sciences, University of Tokushima, Tokushima, Japan
- Institute for Genome Research, University of Tokushima, Tokushima, Japan
| | - Yoshinobu Baba
- Health Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Japan
- Department of Applied Chemistry, Graduate School of Engineering Nagoya University, Nagoya, Japan
| | - Toshihiko Ooie
- Health Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Japan
| | - Masatoshi Kataoka
- Health Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Japan
- * E-mail:
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Hino M, Matsumura I, Kurokawa M, Amagasaki T, Yanada M, Gallagher NJ. The effect of nilotinib on major molecular responses (MMR) compared with imatinib in Japanese patients (pts) with newly diagnosed chronic myeloid leukemia in chronic phase (CML-CP): Results from the Japanese subset of ENESTnd. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.e17001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Kurooka S, Tsuruta D, Hino M, Yanagihara S, Ishii M. Acrodermatitis continua of Hallopeau appearing at specific, high leucocyte counts. Br J Dermatol 2010; 163:428-30. [PMID: 20377584 DOI: 10.1111/j.1365-2133.2010.09792.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Kawashima K, Inoue R, Kanaya T, Matsuba G, Nishida K, Hino M. Distribution of glass transition temperatureTgin a polymer thin film by neutron reflectivity. ACTA ACUST UNITED AC 2009. [DOI: 10.1088/1742-6596/184/1/012004] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Hamamoto Y, Ogata T, Morino T, Hino M, Yamamoto H. Prostaglandin E1 analog increases spinal cord blood flow at the point of compression during and after experimental spinal cord injury. Spinal Cord 2009; 48:149-53. [PMID: 19687798 DOI: 10.1038/sc.2009.99] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
STUDY DESIGN An in vivo study using a spinal cord compression model in rats. OBJECTIVES To evaluate the effect of prostaglandin E1 (PGE1) on the change in thoracic spinal cord blood flow and on hind-limb motor function. BACKGROUND Until now, effect of PGE1 on spinal cord blood flow at the point of compression has not been tested. METHODS Our newly developed blood flow measurement system was a combination of a noncontact-type Laser Doppler system and a spinal cord compression device. The rat thoracic spinal cord was exposed and spinal cord blood flow at the point of compression was measured before, during and after compression. The functioning of the animals' hind-limbs was evaluated by the BBB Scale and by measuring the frequency of voluntary standing. RESULTS During the compression period, spinal cord blood flow was significantly higher in the PGE1-treated rats than in the control rats, which did not receive PGE1. After decompression, the spinal cord blood flow rapidly recovered to about 60% of the precompression level in the control rats. When the animals were treated with PGE1, blood flow after decompression reached about 90% of the precompression level.Twenty-gram compression for 40 mins induced motor deficiencies in the rat hind-limbs. The application of PGE1 significantly improved motor function of the rat hind-limbs after spinal cord injury. CONCLUSIONS The application of PGE1 increased spinal cord blood flow during and after spinal cord compression, and improved motor function after the spinal cord injury.
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Affiliation(s)
- Y Hamamoto
- Department of Orthopaedic Surgery, Ehime University School of Medicine, Tohon City, Ehime, Japan
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Takubo T, Wakui S, Daigo K, Kurokata K, Ohashi T, Katayama K, Hino M. Expression of non-muscle type myosin heavy polypeptide 9 (MYH9) in mammalian cells. Eur J Histochem 2009. [DOI: 10.4081/845] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Myosin is a functional protein associated with cellular movement, cell division, muscle contraction and other functions. Members of the myosin super-family are distinguished from the myosin heavy chains that play crucial roles in cellular processes. Although there are many studies of myosin heavy chains in this family, there are fewer on non-muscle myosin heavy chains than of muscle myosin heavy chains. Myosin is classified as type I (myosin I) or type II (myosin II). Myosin I, called unconventional myosin or mini-myosin, has one head, while myosin II, called conventional myosin, has two heads. We transfected myosin heavy polypeptide 9 (MYH9) into HeLa cells as a fusion protein with enhanced green fluorescent protein (EGFP) and analyzed the localization and distribution of MYH9 in parallel with those of actin and tubulin. The results indicate that MYH9 colocalizes with actin stress fibers. Since it has recently been shown by genetic analysis that autosomal dominant giant platelet syndromes are MYH9-related disorders, our development of transfected EGFP-MYH9 might be useful for predicting the associations between the function of actin polymerization, the MYH9 motor domain, and these disorders.
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Kanda J, Ichinohe T, Shimazaki C, Hamaguchi M, Watanabe A, Ishida H, Yoshihara T, Morimoto A, Uoshima N, Adachi S, Inukai T, Sawada A, Oka K, Itoh M, Hino M, Maruya E, Saji H, Uchiyama T, Kodera Y. Long-term survival after HLA-haploidentical SCT from noninherited maternal antigen-mismatched family donors: impact of chronic GVHD. Bone Marrow Transplant 2009; 44:327-9. [DOI: 10.1038/bmt.2009.18] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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Kodera Y, Miyamura K, Nagafuji K, Hino M, Kim S, Suzuki R. Related Donor Outcomes From the Japanese Registry – the Importance of Pre-Registration System. Biol Blood Marrow Transplant 2009. [DOI: 10.1016/j.bbmt.2008.12.175] [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: 11/16/2022]
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Pattie RW, Anaya J, Back HO, Boissevain JG, Bowles TJ, Broussard LJ, Carr R, Clark DJ, Currie S, Du S, Filippone BW, Geltenbort P, García A, Hawari A, Hickerson KP, Hill R, Hino M, Hoedl SA, Hogan GE, Holley AT, Ito TM, Kawai T, Kirch K, Kitagaki S, Lamoreaux SK, Liu CY, Liu J, Makela M, Mammei RR, Martin JW, Melconian D, Meier N, Mendenhall MP, Morris CL, Mortensen R, Pichlmaier A, Pitt ML, Plaster B, Ramsey JC, Rios R, Sabourov K, Sallaska AL, Saunders A, Schmid R, Seestrom S, Servicky C, Sjue SKL, Smith D, Sondheim WE, Tatar E, Teasdale W, Terai C, Tipton B, Utsuro M, Vogelaar RB, Wehring BW, Xu YP, Young AR, Yuan J. First measurement of the neutron beta asymmetry with ultracold neutrons. Phys Rev Lett 2009; 102:012301. [PMID: 19257182 DOI: 10.1103/physrevlett.102.012301] [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] [Subscribe] [Scholar Register] [Received: 09/17/2008] [Indexed: 05/27/2023]
Abstract
We report the first measurement of an angular correlation parameter in neutron beta decay using polarized ultracold neutrons (UCN). We utilize UCN with energies below about 200 neV, which we guide and store for approximately 30 s in a Cu decay volume. The interaction of the neutron magnetic dipole moment with a static 7 T field external to the decay volume provides a 420 neV potential energy barrier to the spin state parallel to the field, polarizing the UCN before they pass through an adiabatic fast passage spin flipper and enter a decay volume, situated within a 1 T field in a 2x2pi solenoidal spectrometer. We determine a value for the beta-asymmetry parameter A_{0}=-0.1138+/-0.0046+/-0.0021.
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Affiliation(s)
- R W Pattie
- Department of Physics, North Carolina State University, Raleigh, North Carolina 27695, USA
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Tsumoto C, Tominaga K, Okazaki H, Tanigawa T, Yamagami H, Watanabe K, Nakao T, Koh K, Watanabe T, Fujiwara Y, Yamane T, Oshitani N, Hino M, Higuchi K, Arakawa T. Long-term efficacy of Helicobacter pylori eradication in patients with idiopathic thrombocytopenic purpura: 7-year follow-up prospective study. Ann Hematol 2008; 88:789-93. [PMID: 19096845 DOI: 10.1007/s00277-008-0667-5] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2008] [Accepted: 12/06/2008] [Indexed: 02/07/2023]
Abstract
Helicobacter pylori eradication is useful for improvement of a half of patients with idiopathic thrombocytopenic purpura (ITP), but its long-term therapeutic efficacy has not been elucidated. We investigated the long-term efficacy of H. pylori eradication in 30 cases with ITP that were included in our previous study regarding the association between H. pylori infection and ITP. Twenty-one cases were positive and nine cases were negative for H. pylori infection. H. pylori eradication therapy including secondary regimen was successful in 20 cases, half (responder) of whom showed ITP remission 1 month later. Nine responders could be followed up for a long time and did not show re-infection of H. pylori. Eight of nine needed no medication except for eradication therapy. Another case remained in remission for 1 year but thereafter needed a steroid therapy due to the recurrence. Eight nonresponders could be followed up for a long time. All these cases showed a bad clinical course even though they received the other post-treatments including steroid therapy. Three of nine H. pylori-negative cases underwent eradication therapy after obtaining the written informed consent, but none of them showed improvement. Of these three cases, two cases could be followed up. Only one case remained a remission although receiving corticosteroid as a post-treatment. Conditions of H. pylori-negative ITP cases were usually unstable for a long time. H. pylori eradication has a short-term efficacy for about half of H. pylori-positive ITP patients, and the responders to the eradication therapy may receive a long-term clinical benefit without other therapies.
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Affiliation(s)
- C Tsumoto
- Department of Gastroenterology, Osaka City University Graduate School of Medicine, Osaka, Japan
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Takahara A, Kobayashi M, Terayama Y, Torikai N, Hino M, Ishihara K. Neutron reflectivity study of chain conformation in polyelectrolyte brushes at the liquid interface. Acta Crystallogr A 2008. [DOI: 10.1107/s0108767308099509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Maeda E, Kataoka M, Yatsushiro S, Kajimoto K, Hino M, Kaji N, Tokeshi M, Bando M, Kido JI, Ishikawa M, Shinohara Y, Baba Y. Accurate quantitation of salivary and pancreatic amylase activities in human plasma by microchip electrophoretic separation of the substrates and hydrolysates coupled with immunoinhibition. Electrophoresis 2008; 29:1902-9. [PMID: 18393344 DOI: 10.1002/elps.200700688] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
A high-performance determination system for alpha-amylase isoenzyme activities in human plasma involving microchip electrophoresis with a plastic chip was developed. The combination of microchip electrophoresis for substrate and hydrolysate separation and an immunoinhibition method for the differentiation of isoenzyme activities using antihuman salivary amylase (S-AMY) mAb allowed the highly selective determination of amylase isoenzyme (S-AMY and pancreatic amylase (P-AMY)) activities even in a complex matrix such as a crude plasma sample. We used 8-aminopyrene-1,3,6-trisulfonic acid (APTS)-labeled maltohexaose (G6) as a substrate. Amylase in a human plasma sample hydrolyzed APTS-G6 into APTS-maltotriose (G3) and G3, which was measured as the fluorescence intensity of APTS-G3 on microchip electrophoresis. A double logarithm plot revealed a linear relationship between amylase activity and fluorescence intensity in the range of 5-500 U/L of amylase activity (r2=0.9995, p<0.01), and the LOD was 4.38 U/L. Amylase activities in 13 subjects determined by the present method were compared with the results obtained by conventional methods with nitrophenylated oligosaccharides as substrates, respectively. Good correlations were observed for each method on simple linear regression analysis (both p<0.01). The reproducibilities of within-days for total amylase and P-AMY were 2.98-6.27 and 3.83-6.39%, respectively, and these between-days were 2.88-5.66 and 3.64-5.63%, respectively. This system enables us to determine amylase isoenzyme activities in human plasma with high sensitivity and accuracy, and thus will be applicable to clinical diagnosis.
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Affiliation(s)
- Eiki Maeda
- Department of Molecular and Pharmaceutical Biotechnology, Graduate School of Pharmaceutical Sciences, University of Tokushima, Tokushima, Japan
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Yamauchi A, Ikeda J, Nakamichi I, Kohara M, Fukuhara S, Hino M, Kanakura Y, Ogawa H, Sugiyama H, Kanamaru A, Aozasa K. Diffuse large B-cell lymphoma showing an interfollicular pattern of proliferation: a study of the Osaka Lymphoma Study Group. Histopathology 2008; 52:731-7. [DOI: 10.1111/j.1365-2559.2008.03018.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Nakane T, Nakamae H, Kamoi H, Koh H, Takeoka Y, Sakamoto E, Kanashima H, Nakamae M, Ohta K, Terada Y, Koh KR, Yamane T, Hino M. Prognostic value of serum surfactant protein D level prior to transplant for the development of bronchiolitis obliterans syndrome and idiopathic pneumonia syndrome following allogeneic hematopoietic stem cell transplantation. Bone Marrow Transplant 2008; 42:43-9. [DOI: 10.1038/bmt.2008.73] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Shima E, Katsube M, Kato T, Kitagawa M, Hato F, Hino M, Takahashi T, Fujita H, Kitagawa S. Calcium channel blockers suppress cytokine-induced activation of human neutrophils. Am J Hypertens 2008; 21:78-84. [PMID: 18091748 DOI: 10.1038/ajh.2007.13] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
BACKGROUND Neutrophils, in concert with proinflammatory cytokines, play an important role in the progression of atherosclerosis. Calcium channel blockers are commonly used in the treatment of hypertension, and their pleiotropic effects, other than the lowering of blood pressure, have been recently recognized. METHODS We studied the effects of various calcium channel blockers (amlodipine, nicardipine, cilnidipine, benidipine, efonidipine, nifedipine, azelnidipine, verapamil, and diltiazem; each being used at 5 and 10 micromol/l) on superoxide (O(2)(-)) release, migration, and signaling pathways in human neutrophils stimulated by granulocyte-macrophage colony-stimulating factor (GM-CSF) or tumor necrosis factor-alpha (TNF-alpha). RESULTS GM-CSF-induced O(2)(-) release was suppressed by amlodipine, nicardipine, and cilnidipine, whereas TNF-alpha-induced O(2)(-) release was suppressed by amlodipine, nicardipine, cilnidipine, benidipine, efonidipine, nifedipine, and azelnidipine. TNF-alpha-induced phosphorylation of extracellular signal-regulated kinase (ERK) and Akt, but not p38 mitogen-activated protein kinase (MAPK), was attenuated by nicardipine, cilnidipine, benidipine, efonidipine, and azelnidipine. By contrast, GM-CSF-induced phosphorylation of ERK, p38, and Akt was affected by none of the blockers. GM-CSF-induced neutrophil migration was also suppressed by amlodipine and nicardipine, but not by azelnidipine, when these blockers were assessed for their effect on neutrophil migration. CONCLUSIONS These findings suggest that (i) some calcium channel blockers can suppress cytokine-induced neutrophil activation, leading to possible prevention of the progression of atherosclerosis; and (ii) that activation of the ERK and phosphatidylinositol 3-kinase (PI3K)/Akt pathways, induced by TNF-alpha but not by GM-CSF, is selectively affected by some blockers.
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