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Kawakita T, Mukai T, Yoshida M, Yamada H, Nakayama M, Miyamoto Y, Suzuki M, Nakata N, Takii T, Ryo A, Ohara N, Ato M. Point mutation in the stop codon of MAV_RS14660 increases the growth rate of Mycobacterium avium subspecies hominissuis. Microbiology (Reading) 2021; 167:001007. [PMID: 33357282 PMCID: PMC8131024 DOI: 10.1099/mic.0.001007] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Accepted: 11/30/2020] [Indexed: 11/18/2022]
Abstract
Mycobacterium avium subspecies hominissuis (MAH) is a pathogen that causes various non-tuberculous mycobacterial diseases in humans and animals worldwide. Among the genus, MAH is characterized by relatively slow growth. Here, we isolated a rapidly growing variant of the MAH 104 strain. The variant strain (named N104) exhibited an enhanced growth rate and higher motility compared to the parent MAH 104 strain (P104). Whole-genome sequencing analysis of N104 revealed the loss of the stop codon of MAV_RS14660 due to a single nucleotide replacement, resulting in the substitution of the codon for tryptophan. Notably, exclusion of the stop codon ligated the open reading frames and caused the fusion of two adjacent proteins. A revertant parent strain, in which a mutation was introduced to restore the stop codon, revealed that elimination of the stop codon in MAV_RS14660 was responsible for the N104 phenotype. Furthermore, we analysed the phenotypes of the parent and mutated strains by determining the functions of the MAV_RS14660 and MAV_RS14655 coding regions flanking the stop codon. The mutant strains, expected to express a fusion protein, exhibited increased resistance to antimicrobial drugs and exogenous copper toxicity compared to that of the parent strains. These findings suggest that the fusion of the MAV_RS14660- and MAV_RS14655-encoding regions in the mutant N104 strain could be related to the modified functions of these intrinsic proteins.
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Affiliation(s)
- Tomomi Kawakita
- Department of Mycobacteriology, Leprosy Research Center, National Institute of Infectious Diseases, Tokyo, Japan
- Department of Microbiology and Molecular Biodefense Research, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Tetsu Mukai
- Department of Mycobacteriology, Leprosy Research Center, National Institute of Infectious Diseases, Tokyo, Japan
| | - Mitsunori Yoshida
- Department of Mycobacteriology, Leprosy Research Center, National Institute of Infectious Diseases, Tokyo, Japan
| | - Hiroyuki Yamada
- Department of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Tokyo, Japan
| | - Masaaki Nakayama
- Department of Oral Microbiology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
- Advanced Research Center for Oral and Craniofacial Sciences, Okayama University Dental School, Okayama, Japan
| | - Yuji Miyamoto
- Department of Mycobacteriology, Leprosy Research Center, National Institute of Infectious Diseases, Tokyo, Japan
| | - Masato Suzuki
- Antimicrobial Resistance Research Center, National Institute of Infectious Diseases, Tokyo, Japan
| | - Noboru Nakata
- Department of Mycobacteriology, Leprosy Research Center, National Institute of Infectious Diseases, Tokyo, Japan
| | - Takemasa Takii
- Department of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Tokyo, Japan
| | - Akihide Ryo
- Department of Microbiology and Molecular Biodefense Research, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Naoya Ohara
- Department of Oral Microbiology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
- Advanced Research Center for Oral and Craniofacial Sciences, Okayama University Dental School, Okayama, Japan
| | - Manabu Ato
- Department of Mycobacteriology, Leprosy Research Center, National Institute of Infectious Diseases, Tokyo, Japan
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Maeda R, Ito T, Tagami T, Takii T, Ozeki T. Development of Dried Emulsion/Mannitol Composite Microparticles through a Unique Spray Nozzle for Efficient Delivery of Hydrophilic Anti-tuberculosis Drug against Alveolar Macrophages. Biol Pharm Bull 2020; 42:1846-1853. [PMID: 31685768 DOI: 10.1248/bpb.b19-00368] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
As alveolar macrophages are attractive targets for the treatment of tuberculosis, effective methods for delivery to alveolar macrophages are under development. We investigated a pulmonary formulation for the efficient delivery of high water-soluble drugs at high concentration targeting alveolar macrophages. In this study, a surfactant-coated high water-soluble drug complex (SDC, a hydrophobic dried emulsion), which can preferably target alveolar macrophages and be expected to deliver drug at a high concentration, was prepared in the first process. OCT313, a high water-soluble sugar derivative with anti-tuberculosis activity was used. Then, a unique two-solution, mixing-type nozzle was used to prepare the SDC nanoparticles in mannitol (MAN) microparticles (SDC/MAN microparticles) because it was difficult to disperse the SDC nanoparticles in aqueous solution. The single micron size of OCT313-SDC/MAN microparticles contained OCT313-SDC nanoparticles (mean particle size of OCT313-SDC nanoparticles, 277.9 nm; drug contents, 1.31 ± 0.041 wt%). We found that the treatment of SDC/MAN microparticles exhibited significantly higher drug accumulation in macrophage cells (Raw264.7 cells, 7.5-fold, at 4 h after treatment) in vitro and in alveolar macrophages in rats (9.1-fold, at 4 h after treatment) in vivo than that of drug alone. These results suggest that the SDC/MAN microparticle formulation prepared by spray drying through a two-solution mixing-type nozzle provides efficient delivery of a water-soluble drug targeting alveolar macrophages and may be useful for tuberculosis treatment.
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Affiliation(s)
- Ryo Maeda
- Drug Delivery and Nano Pharmaceutics, Graduate School of Pharmaceutical Sciences, Nagoya City University
| | - Tatsuya Ito
- Drug Delivery and Nano Pharmaceutics, Graduate School of Pharmaceutical Sciences, Nagoya City University
| | - Tatsuaki Tagami
- Drug Delivery and Nano Pharmaceutics, Graduate School of Pharmaceutical Sciences, Nagoya City University
| | - Takemasa Takii
- Molecular Health Sciences, Graduate School of Pharmaceutical Sciences, Nagoya City University.,Department of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association
| | - Tetsuya Ozeki
- Drug Delivery and Nano Pharmaceutics, Graduate School of Pharmaceutical Sciences, Nagoya City University
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Abstract
A 74-year-old man underwent intravesical bacillus Calmette-Guerin (BCG) therapy for bladder cancer and later presented with lower left back pain. Magnetic resonance imaging of the spine showed high signal intensity, diagnosed as a cystic lesion in the epidural and bilateral intestinal psoas muscle. A computed tomography-guided needle biopsy and histological examination revealed bacteria from the family Mycobacteriaceae, and Mycobacterium bovis was identified using multiplex polymerase chain reaction. If lower back pain appears in a patient who has undergone BCG therapy, it is necessary to test for tuberculous spondylitis. In addition, QuantiFERON is useful for the differential diagnosis of M. bovis BCG infection.
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Affiliation(s)
| | - Yoshio Nakano
- Department of Internal Medicine, Kinan Hospital, Japan
| | - Shinobu Tamura
- Division of Hematology, Department of Internal Medicine, Wakayama Medical University, Japan
| | | | - Kana Hayakawa
- Department of Internal Medicine, Kinan Hospital, Japan
| | | | - Takayuki Oota
- Department of Internal Medicine, Kinan Hospital, Japan
| | | | | | - Takemasa Takii
- Department of Mycobacteriology, The Research Institute of Tuberculosis, Japan Anti-tuberculosis Association, Japan
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Namiuchi S, Sunamura S, Ushigome R, Noda K, Takii T. P836Glasgow Prognostic Score predicts the readmission caused by acute decompensated heart failure after myocardial infarction. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz747.0434] [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
Purpose
The Glasgow Prognostic Score (GPS), combination of C-reactive protein (CRP) and serum albumin concentration, provides predictions of prognosis in patients with heart failure. We evaluated the GPS of patients with acute myocardial infarction (MI).
Methods
We investigated the prognosis of 1182 patients with acute MI in our institution. These patients were classified into three groups by GPS at admission. GPS was defined as follows: patients with both elevated CRP (>1.0mg/dL) and hypoalbuminemia (<3.5 g/dL) were allocated a score of 2, patients with only one of these biochemical abnormalities were allocated a score of 1, and patients with neither of these abnormalities were allocated a score of 0.
Results
Of the patients, 70.3% (n=831), 19.2% (n=227), and 10.5% (n=124) had GPS of 0, 1, and 2, respectively. In-hospital mortality of GPS 0, GPS 1, and GPS 2 were 4.7%, 18.1%, and 31.5%, respectively (p<0.0001). Relative to a GPS of 0, the hazard ratios for the readmission caused by acute decompensated heart failure (ADHF) were 3.27 (95% CI: 2.04–5.18) for a GPS of 1 and 3.62 (95% CI: 1.93–6.42) for a GPS of 2 in the age- and sex- adjusted Cox proportional hazard model. After propensity score matching, baseline characteristics were balanced, and 250 paired patients constituted GPS 0 group and GPS 1–2 group. Patients with GPS1 or 2 had a higher risk of the development of ADHF compared with patients with GPS 0 (Hazard ratio: 1.96, 95% confidence interval: 1.13–3.47, p=0.017).
Conclusions
The GPS, which is based on systemic inflammation, is useful for predicting the development of acute decompensated heart failure after myocardial infarction.
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Affiliation(s)
- S Namiuchi
- Sendai City Medical Center, Sendai Open Hospital, Sendai, Japan
| | - S Sunamura
- Sendai City Medical Center, Sendai Open Hospital, Sendai, Japan
| | - R Ushigome
- Sendai City Medical Center, Sendai Open Hospital, Sendai, Japan
| | - K Noda
- Sendai City Medical Center, Sendai Open Hospital, Sendai, Japan
| | - T Takii
- Sendai City Medical Center, Sendai Open Hospital, Sendai, Japan
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Takii T, Seki K, Wakabayashi Y, Morishige Y, Sekizuka T, Yamashita A, Kato K, Uchimura K, Ohkado A, Keicho N, Mitarai S, Kuroda M, Kato S. Whole-genome sequencing-based epidemiological analysis of anti-tuberculosis drug resistance genes in Japan in 2007: Application of the Genome Research for Asian Tuberculosis (GReAT) database. Sci Rep 2019; 9:12823. [PMID: 31492902 PMCID: PMC6731343 DOI: 10.1038/s41598-019-49219-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [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: 01/23/2019] [Accepted: 08/21/2019] [Indexed: 11/10/2022] Open
Abstract
We investigated the lineages of Mycobacterium tuberculosis (Mtb) isolates from the RYOKEN study in Japan in 2007 and the usefulness of genotypic drug susceptibility testing (DST) using the Genome Research for Asian Tuberculosis (GReAT) database. In total, 667 isolates were classified into lineage 1 (4.6%), lineage 2 (0.8%), lineage 2/Beijing (72.1%), lineage 3 (0.5%), and lineage 4 (22.0%). The nationality, gender, and age groups associated with the isolates assigned to lineage 1 were significantly different from those associated with other lineages. In particular, isolates of lineage 1.2.1 (EAI2) formed sub-clusters and included a 2,316-bp deletion in the genome. The proportion of the isolates resistant to at least one anti-tuberculosis (TB) drug was 10.8%, as determined by either the genotypic or phenotypic method of DST. However, the sensitivities to isoniazid, streptomycin, and ethambutol determined by the genotypic method were low. Thus, unidentified mutations in the genome responsible for drug resistance were explored, revealing previously unreported mutations in the katG, gid, and embB genes. This is the first nationwide report of whole-genome analysis of TB in Japan.
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Affiliation(s)
- Takemasa Takii
- Department of Mycobacteriology, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, 3-1-24 Matsuyama, Kiyose, Tokyo, 204-8533, Japan.
| | - Kouhei Seki
- Department of Mycobacteriology, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, 3-1-24 Matsuyama, Kiyose, Tokyo, 204-8533, Japan
| | - Yasutaka Wakabayashi
- Department of Mycobacteriology, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, 3-1-24 Matsuyama, Kiyose, Tokyo, 204-8533, Japan
| | - Yuta Morishige
- Department of Mycobacteriology, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, 3-1-24 Matsuyama, Kiyose, Tokyo, 204-8533, Japan
| | - Tsuyoshi Sekizuka
- Pathogen Genomics Center, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo, 162-8640, Japan
| | - Akifumi Yamashita
- Pathogen Genomics Center, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo, 162-8640, Japan
| | - Kengo Kato
- Pathogen Genomics Center, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo, 162-8640, Japan
| | - Kazuhiro Uchimura
- Department of Epidemiology and Clinical Research, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, 3-1-24 Matsuyama, Kiyose, Tokyo, 204-8533, Japan
| | - Akihiro Ohkado
- Department of Epidemiology and Clinical Research, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, 3-1-24 Matsuyama, Kiyose, Tokyo, 204-8533, Japan
| | - Naoto Keicho
- Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, 3-1-24 Matsuyama, Kiyose, Tokyo, 204-8533, Japan
| | - Satoshi Mitarai
- Department of Mycobacteriology, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, 3-1-24 Matsuyama, Kiyose, Tokyo, 204-8533, Japan
| | - Makoto Kuroda
- Pathogen Genomics Center, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo, 162-8640, Japan
| | - Seiya Kato
- Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, 3-1-24 Matsuyama, Kiyose, Tokyo, 204-8533, Japan
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Izumi K, Murase Y, Uchimura K, Kaebeta A, Ishihara K, Kaguraoka S, Takii T, Ohkado A. Transmission of tuberculosis and predictors of large clusters within three years in an urban setting in Tokyo, Japan: a population-based molecular epidemiological study. BMJ Open 2019; 9:e029295. [PMID: 31076478 PMCID: PMC6527980 DOI: 10.1136/bmjopen-2019-029295] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
OBJECTIVE Molecular epidemiology is a promising tool for understanding tuberculosis transmission dynamics but has not been sufficiently utilised in Asian countries including Japan. The aim of this study was to estimate the proportion of TB cases attributable to recent transmission and to identify risk factors of genotype clustering and the development of large clusters within 3 years in an urban setting in Japan. DESIGN AND SETTING Long-term cross-sectional observational study combining the characteristics of patients with culture-positive TB notified in Shinjuku City, Tokyo (2002-2013), with genotype data of Mycobacterium tuberculosis. PRIMARY OUTCOME MEASURE: Genotype clustering rate and association between genotype clustering status and explanatory variables. RESULTS Among 1025 cases, 515 were localised within 113 genotype clusters. The overall clustering rate was 39.2%. Significantly higher rates were found in patients aged <40 years (adjusted odds ratio (aOR)=1.73, 95% CI 1.23 to 2.44), native Japanese individuals (aOR=3.90, 95% CI 2.27 to 6.72), full-time workers (aOR=1.63, 95% CI 1.17 to 2.27), part-time/daily workers (aOR=2.20, 95% CI 1.35 to 3.58), individuals receiving public assistance (aOR=1.81, 95% CI 1.15 to 2.84) and homeless people (aOR=1.63, 95% CI 1.02 to 2.62). A significant predictor of large genotype clusters within 3 years was a registration interval ≤2 months between the first two cases in a cluster. CONCLUSION Our results indicated that a large proportion of patients with culture-positive TB were involved in the recent TB transmission chain. Foreign-born persons still have a limited impact on transmission in the Japanese urban setting. Intensified public health interventions, including the active case finding, need to focus on individuals with socioeconomic risk factors that are significantly associated with tuberculosis transmission and clusters with shorter registration intervals between the first two cases.
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Affiliation(s)
- Kiyohiko Izumi
- Department of Epidemiology and Clinical Research, The Research Institute of Tuberculosis, Kiyose, Japan
| | - Yoshiro Murase
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Kiyose, Japan
| | - Kazuhiro Uchimura
- Department of Epidemiology and Clinical Research, The Research Institute of Tuberculosis, Kiyose, Japan
| | - Aya Kaebeta
- Health Department, Shinjuku Public Health Center, Shinjuku, Japan
| | - Keiko Ishihara
- Health Department, Shinjuku Public Health Center, Shinjuku, Japan
| | - Sumi Kaguraoka
- Health Department, Shinjuku Public Health Center, Shinjuku, Japan
| | - Takemasa Takii
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Kiyose, Japan
| | - Akihiro Ohkado
- Department of Epidemiology and Clinical Research, The Research Institute of Tuberculosis, Kiyose, Japan
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Iwamoto T, Murase Y, Yoshida S, Aono A, Kuroda M, Sekizuka T, Yamashita A, Kato K, Takii T, Arikawa K, Kato S, Mitarai S. Overcoming the pitfalls of automatic interpretation of whole genome sequencing data by online tools for the prediction of pyrazinamide resistance in Mycobacterium tuberculosis. PLoS One 2019; 14:e0212798. [PMID: 30817803 PMCID: PMC6394917 DOI: 10.1371/journal.pone.0212798] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Accepted: 02/09/2019] [Indexed: 11/18/2022] Open
Abstract
OBJECTIVES Automated online software tools that analyse whole genome sequencing (WGS) data without the need for bioinformatics expertise can motivate the implementation of WGS-based molecular drug susceptibility testing (DST) in routine diagnostic settings for tuberculosis (TB). Pyrazinamide (PZA) is a key drug for current and future TB treatment regimens; however, it was reported that predictive power for PZA resistance by the available tools is low. Therefore, this low predictive power may make users hesitant to use the tools. This study aimed to elucidate why and to uncover the real performance of the tools when taking into account their variation calling lists (manual inspection), not just their automated reporting system (default setting) that was evaluated by previous studies. METHODS WGS data from 191 datasets comprising 108 PZA-resistant and 83 susceptible strains were used to evaluate the potential performance of the available online tools (TB Profiler, TGS-TB, PhyResSE, and CASTB) for predicting phenotypic PZA resistance. RESULTS When taking into consideration the variation calling lists, 73 variants in total (47 non-synonymous mutations and 26 indels) in pncA were detected by TGS-TB and PhyResSE, covering all mutations for the 108 PZA-resistant strains. The 73 variants were confirmed by Sanger sequencing. TB Profiler also detected all but three complete loss, two large deletion at the 3'-end, and one relatively large insertion of pncA. On the other hand, many of the 73 variants were lacking in the automated reporting systems except by TGS-TB; of these variants, CASTB detected only 20. By applying the 'non-wild type sequence' approach for predicting PZA resistance, accuracy of the results significantly improved compared with that of the automated results obtained by each tool. CONCLUSION Users can obtain more accurate predictions for PZA resistance than previously reported by manually checking the results and applying the 'non-wild type sequence' approach.
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Affiliation(s)
- Tomotada Iwamoto
- Department of Infectious Diseases, Kobe Institute of Health, Kobe City, Japan
- * E-mail: (TI); (SM)
| | - Yoshiro Murase
- Bacteriology Division, Department of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Kiyose City, Tokyo, Japan
| | - Shiomi Yoshida
- Clinical Research Center, National Hospital Organization Kinki-chuo Chest Medical Center, Sakai City, Osaka, Japan
| | - Akio Aono
- Bacteriology Division, Department of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Kiyose City, Tokyo, Japan
| | - Makoto Kuroda
- Pathogen Genomics Center, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo, Japan
| | - Tsuyoshi Sekizuka
- Pathogen Genomics Center, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo, Japan
| | - Akifumi Yamashita
- Pathogen Genomics Center, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo, Japan
| | - Kengo Kato
- Pathogen Genomics Center, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo, Japan
| | - Takemasa Takii
- Molecular Epidemiology Division, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Kiyose City, Tokyo, Japan
| | - Kentaro Arikawa
- Department of Infectious Diseases, Kobe Institute of Health, Kobe City, Japan
| | - Seiya Kato
- Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Kiyose City, Tokyo, Japan
| | - Satoshi Mitarai
- Bacteriology Division, Department of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Kiyose City, Tokyo, Japan
- Basic Mycobacteriosis, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki City, Nagasaki, Japan
- * E-mail: (TI); (SM)
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Takadama S, Nakaminami H, Takii T, Noguchi N. Identification and detection of USA300 methicillin-resistant Staphylococcus aureus clones with a partial deletion in the ccrB2 gene on the type IV SCCmec element. Diagn Microbiol Infect Dis 2018; 94:86-87. [PMID: 30579658 DOI: 10.1016/j.diagmicrobio.2018.11.016] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 11/17/2018] [Accepted: 11/20/2018] [Indexed: 11/19/2022]
Abstract
Panton-Valentine leukocidin-positive highly pathogenic USA300 methicillin-resistant Staphylococcus aureus carries type IV staphylococcal cassette chromosome (SCC) mec. Here, we found USA300-like strains (named as ΨUSA300), which could not be identified as SCCmec type IV by the conventional PCR method due to a 12 bp deletion on ccrB2.
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Affiliation(s)
- Shunsuke Takadama
- Department of Microbiology, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
| | - Hidemasa Nakaminami
- Department of Microbiology, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan.
| | - Takemasa Takii
- Department of Mycobacterium Reference & Research, the Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, 3-1-24 Matsuyama, Kiyose, Tokyo, Japan
| | - Norihisa Noguchi
- Department of Microbiology, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
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Kohno K, Itoh S, Hanai A, Takii T, Fujiwara T, Onozaki K, Tsuji T, Hida S. Identification of matrix metalloproteinase 9-interacting sequences in staphylococcal superantigen-like protein 5. Biochem Biophys Res Commun 2018; 497:713-718. [PMID: 29462623 DOI: 10.1016/j.bbrc.2018.02.138] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [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: 02/09/2018] [Accepted: 02/15/2018] [Indexed: 11/17/2022]
Abstract
Staphylococcal superantigen like 5 (SSL5) is an exotoxin produced by S. aureus and has a strong inhibitory effect on MMP-9 enzymatic activity. However, the mechanism of inhibition remains unclear. We sought to identify the responsible regions of SSL5 for the interaction with MMP-9 by comparing a series of domain swap and deletion mutants of SSL5. Binding analyses revealed that SSL5 had two regions for binding to MMP-9 catalytic domain, β1-3 region (25SKELKNVTGY RYSKGGKHYL IFDKNRKFTR VQIFGK60) in N-terminal half and α4β9 region (138KELDFKLRQY LIQNFDLYKK FPKDSKIKVI MKD170) in C-terminal half. The collagen binding domain and zinc-chelating histidine residues of MMP-9 were not essential for the specific binding to SSL5. The domain swap mutants of SSL5 that conserved β1-3 but not α4β9 region inhibited the gelatinolysis by MMP-9, and the mutant of SSL7 that substituted β1-3 region to that of SSL5 acquired the binding and inhibitory activity. Furthermore, the polypeptide that harbored β1-3 region of SSL5 inhibited gelatinolysis by MMP-9. Taken together, SSL5 inhibits the MMP9 activity through binding to the catalytic domain, and the β1-3 region is responsible for the inhibition of proteolytic activity of MMP-9.
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Affiliation(s)
- Katsuhiro Kohno
- Department of Molecular and Cellular Health Sciences, Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1 Tanabe-Dori, Mizuho-ku, Nagoya, 467-8603, Japan
| | - Saotomo Itoh
- Department of Molecular and Cellular Health Sciences, Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1 Tanabe-Dori, Mizuho-ku, Nagoya, 467-8603, Japan.
| | - Akari Hanai
- Department of Molecular and Cellular Health Sciences, Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1 Tanabe-Dori, Mizuho-ku, Nagoya, 467-8603, Japan
| | - Takemasa Takii
- Bacteriology Division, Mycobacterium Reference Centre, Research Institute of Tuberculosis, 3-1-24 Matsuyama, Kiyose, Tokyo 204-8533, Japan
| | - Toshinobu Fujiwara
- Laboratory of Biochemistry, Graduate School of Pharmaceutical Sciences, Kindai University, 3-4-1. Kowakae, Higashi-osaka 577-8502, Japan
| | - Kikuo Onozaki
- Department of Molecular and Cellular Health Sciences, Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1 Tanabe-Dori, Mizuho-ku, Nagoya, 467-8603, Japan
| | - Tsutomu Tsuji
- Department of Microbiology, Hoshi University School of Pharmacy and Pharmaceutical Sciences, 2-4-41 Ebara, Shinagawa-ku, Tokyo 142-8501, Japan
| | - Shigeaki Hida
- Department of Molecular and Cellular Health Sciences, Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1 Tanabe-Dori, Mizuho-ku, Nagoya, 467-8603, Japan
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10
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Takeno M, Kitagawa S, Yamanaka J, Teramoto M, Tomita H, Shirai N, Itoh S, Hida S, Hayakawa K, Onozaki K, Takii T. 5-Hydroxy-2-methylpyridine Isolated from Cigarette Smoke Condensate Aggravates Collagen-Induced Arthritis in Mice. Biol Pharm Bull 2018; 41:877-884. [PMID: 29863076 DOI: 10.1248/bpb.b17-00982] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The risk of rheumatoid arthritis (RA) is linked to environmental and genetic factors. Cigarette smoking is an established environmental risk factor for the disease that contributes to its development and severity. Previously, we found that cigarette smoke condensate (CSC), both mainstream and sidestream, aggravates collagen type II-induced arthritis (CIA), which was observed following either intraperitoneal inoculation or nasal exposure. In the present study, we aimed to identify the compound in CSC, which aggravates CIA. By sequential fractionation and analysis, extraction with water/ether in different pH values, silica gel column chromatography, TLC, octadecyl silica (ODS) HPLC, GC/MS, and NMR, the active compound was identified as 5-hydroxy-2-methylpyridine (5H2MP). Its isomer 2-hydroxy-3-methylpyridine, but not 3-hydroxy-2-methylpyridine, was also active. 5H2MP was not mutagenic, and did not exhibit aryl hydrocarbon receptor-dependent activity. Our data help clarify the mechanism underlying the pathogenic effects of cigarette smoking on RA.
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Affiliation(s)
- Masafumi Takeno
- Department of Hygienic Chemistry, Graduated School of Pharmaceutical Sciences, Nagoya City University
| | - Shinya Kitagawa
- Department of Life Science and Applied Chemistry, Graduate School of Engineering, Nagoya Institute of Technology
| | - Junpei Yamanaka
- Department of Physical Chemistry of Colloid and Polymer, Graduated School of Pharmaceutical Sciences, Nagoya City University
| | - Mayumi Teramoto
- Department of Hygienic Chemistry, Graduated School of Pharmaceutical Sciences, Nagoya City University
| | - Haruka Tomita
- Department of Hygienic Chemistry, Graduated School of Pharmaceutical Sciences, Nagoya City University
| | - Naohiro Shirai
- Department of Synthetic Supramolecular Chemistry, Graduated School of Pharmaceutical Sciences, Nagoya City University
| | - Saotomo Itoh
- Department of Hygienic Chemistry, Graduated School of Pharmaceutical Sciences, Nagoya City University
| | - Shigeaki Hida
- Department of Hygienic Chemistry, Graduated School of Pharmaceutical Sciences, Nagoya City University
| | - Kazuichi Hayakawa
- Institute of Nature and Environmental Technology, Kanazawa University
| | - Kikuo Onozaki
- Department of Hygienic Chemistry, Graduated School of Pharmaceutical Sciences, Nagoya City University
| | - Takemasa Takii
- Department of Hygienic Chemistry, Graduated School of Pharmaceutical Sciences, Nagoya City University
- Department of Mycobacterium Reference & Research, the Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association
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Sato K, Namiuchi S, Sugie T, Takii T, Ushigome R, Kato A, Yoshida S, Shimokawa H. P4281Impact of myocardial infarction during elective coronary intervention on long-term prognosis. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx504.p4281] [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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Takii T, Namiuchi S, Sato K, Ushigome R, Sugie T, Yoshida S, Kato A. P2344Quantitative and qualitative plaque analysis for prediction of no-reflow phenomenon during elective coronary intervention. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.p2344] [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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13
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Itoh S, Takii T, Onozaki K, Tsuji T, Hida S. Identification of the blood coagulation factor interacting sequences in staphylococcal superantigen-like protein 10. Biochem Biophys Res Commun 2017; 485:201-208. [DOI: 10.1016/j.bbrc.2017.02.053] [Citation(s) in RCA: 4] [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] [Received: 02/01/2017] [Accepted: 02/09/2017] [Indexed: 02/03/2023]
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14
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Taniguchi K, Miyatake Y, Hayashi D, Takami A, Itoh S, Yamamoto S, Hida S, Onozaki K, Takii T. Early-shared Mycobacterium bovis bacillus Calmette-Guérin sub-strains induce Th1 cytokine production in vivo. Microbiol Immunol 2015; 59:684-9. [PMID: 26399380 DOI: 10.1111/1348-0421.12326] [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: 03/10/2015] [Revised: 09/11/2015] [Accepted: 09/17/2015] [Indexed: 01/20/2023]
Abstract
Interleukin-12 is one of the cytokines that induce acquired immunity by progressing the differentiation of T cells. When antigens are presented by APCs, including macrophages and DCs, T cells are activated and produce the Th1 cytokines IL-2 and IFN-γ. We have previously reported greater IL-12 production from macrophages infected with early-shared BCG sub-strains (ex. BCG-Japan, -Sweden) than from those infected with late-shared BCG (ex. BCG-Pasteur and -Connaught) . In this study, we investigated the Th1 cytokine-inducing activity of splenocytes co-cultured with BCG-infected DCs. Early-shared BCG-infected DCs produced IL-12 and TNF-α⋅ Furthermore, when they were co-cultured with purified protein derivative-stimulated DCs, the splenocytes of mice immunized with BCG-Tokyo/Japan produced more Th1 cytokine than did those of mice immunized with BCG-Connaught. In conclusion, early-shared BCG sub-strains more strongly induce Th1 cytokine production in vivo. This study provides basic information to inform the selection of candidates for primary vaccination.
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Affiliation(s)
- Keiichi Taniguchi
- Department of Molecular Health Sciences, Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1 Tanabe, Mizuho-ku, Nagoya 467-8603
| | - Yuuji Miyatake
- Department of Molecular Health Sciences, Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1 Tanabe, Mizuho-ku, Nagoya 467-8603
| | - Daisuke Hayashi
- Japan BCG Laboratory, 3-1-5 Matsuyama, Kiyose, Tokyo 204-0022, Japan
| | - Atsuro Takami
- Department of Molecular Health Sciences, Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1 Tanabe, Mizuho-ku, Nagoya 467-8603
| | - Saotomo Itoh
- Department of Molecular Health Sciences, Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1 Tanabe, Mizuho-ku, Nagoya 467-8603
| | - Saburo Yamamoto
- Japan BCG Laboratory, 3-1-5 Matsuyama, Kiyose, Tokyo 204-0022, Japan
| | - Shigeaki Hida
- Department of Molecular Health Sciences, Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1 Tanabe, Mizuho-ku, Nagoya 467-8603
| | - Kikuo Onozaki
- Department of Molecular Health Sciences, Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1 Tanabe, Mizuho-ku, Nagoya 467-8603
| | - Takemasa Takii
- Department of Molecular Health Sciences, Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1 Tanabe, Mizuho-ku, Nagoya 467-8603
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15
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Takii T. [SENSORS IN MYCOBACTERIA FOR THE DETECTION OF REDOX STRESS]. Kekkaku 2015; 90:579-591. [PMID: 26630729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Mycobacterium species are exposed to oxidative and nitrosylative stress from environments within and outside the host cells. After the host is infected with the bacilli, macrophages produce superoxide molecules via NADPH oxidase activity and nitric oxide (NO) via inducible NO synthase activity to kill the bacilli. The pathogenic bacilli can successfully survive in host cells via anti-oxidative and anti-nitrosylative mechanisms. In particular, Mycobacterium tuberculosis persisters pose a great problem for chemotherapy because most anti-mycobacterial drugs are ineffective against mycobacteria that are in the persistent state. In accordance with the changes in redox balance, the bacilli change their metabolic pathways from aerobic to anaerobic ones, thereby leading to a change from an actively growing state to a dormant state. Therefore, M. tuberculosis is expected to be equipped with sensors that detect redox stress in the environment such that it can switch to the dormant state and change its metabolic pathways accordingly. In this review, roles of the mycobacterial O2, NO, and CO gas sensors, DosS and DosT, consisting of the DosR regulon, and mycobacterial DNA binding proteins WhiBs, which contain iron-sulfur clusters, in latent infection are discussed.
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Takii T, Namiuchi S, Sugie T, Saji K, Suda A, Kato A. The clinical feature of the acute myocardial infarction patients with admission hyperglycemia. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht309.p4258] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Sugie T, Namiuchi S, Takii T, Kawaguchi T, Saji K, Suda A, Yamaya K, Kato A. Combination of anemia and high B-type natriuretic peptide levels is indicative of in-hospital mortality of patients with acute myocardial infarction. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht308.p2213] [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: 11/13/2022] Open
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18
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Namiuchi S, Sugie T, Saji K, Takii T, Kawaguchi T, Suda A, Yamaya K, Kato A. Serum albumin concentration predicts the prognosis of patients with acute decompensated heart failure. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht308.p1514] [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: 11/13/2022] Open
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19
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Taniguchi K, Takii T, Yamamoto S, Maeyama JI, Iho S, Maruyama M, Iizuka N, Ozeki Y, Matsumoto S, Hasegawa T, Miyatake Y, Itoh S, Onozaki K. Reactivation of immune responses against Mycobacterium tuberculosis by boosting with the CpG oligomer in aged mice primarily vaccinated with Mycobacterium bovis BCG. Immun Ageing 2013; 10:25. [PMID: 23799936 PMCID: PMC3704610 DOI: 10.1186/1742-4933-10-25] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2013] [Accepted: 06/15/2013] [Indexed: 11/10/2022]
Abstract
BACKGROUND Mycobacterium bovis bacillus Calmette Guérin (BCG) vaccine, which has been inoculated to more than one billion people world-wide, has significant effect in preventing tuberculous meningitis and miliary tuberculosis (TB) in neonate and early childhood. However, BCG fails to adequately protect against pulmonary TB and reactivation of latent infections in adults. To overcome this problem, adequate booster is urgently desired in adult who received prior BCG vaccination, and appropriate animal models that substitute human cases would be highly valuable for further experimentation. FINDINGS The booster effect of the synthesized CpG oligomer (Oligo-B) on aged mice which had been primarily vaccinated with BCG at the age of 4-week old. The specific Th1 type reaction, production of interferon-γ, in response to TB antigens, purified protein derivatives (PPD) and protection against challenge with Mycobacterium tuberculosis (MTB) H37Rv decreased with increasing age and were not observed in 89-week old mice. In order to rejuvenate the Th1 type response against PPD and protection activity against MTB infection, Oligo-B, which is known to augment Th1 responses, was administered as a booster to 81-90-week old mice (late 50's in human equivalent) vaccinated with BCG at 4-week old. The boosting with Oligo-B increased the number of CD4+ CD44high CD62Lhigh, central memory type T cell. Furthermore, the Oligo-B boosting rejuvenated the ability of mice to protect against infection with MTB H37Rv. CONCLUSIONS Th1-adjuvant CpG oligo DNA, such as Oligo-B, may be a promising booster when coupled with BCG priming.
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Affiliation(s)
- Keiichi Taniguchi
- Department of Molecular Health Sciences, Graduated School of Pharmaceutical Sciences, Nagoya City University, 3-1, Tanabe, Mizuho-ku, Nagoya 467-8603, Japan.
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20
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Itoh S, Yokoyama R, Kamoshida G, Fujiwara T, Okada H, Takii T, Tsuji T, Fujii S, Hashizume H, Onozaki K. Staphylococcal superantigen-like protein 10 (SSL10) inhibits blood coagulation by binding to prothrombin and factor Xa via their γ-carboxyglutamic acid (Gla) domain. J Biol Chem 2013; 288:21569-80. [PMID: 23754290 DOI: 10.1074/jbc.m113.451419] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [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: 01/09/2023] Open
Abstract
The staphylococcal superantigen-like protein (SSL) family is composed of 14 exoproteins sharing structural similarity with superantigens but no superantigenic activity. Target proteins of four SSLs have been identified to be involved in host immune responses. However, the counterparts of other SSLs have been functionally uncharacterized. In this study, we have identified porcine plasma prothrombin as SSL10-binding protein by affinity purification using SSL10-conjugated Sepharose. The resin recovered the prodomain of prothrombin (fragment 1 + 2) as well as factor Xa in pull-down analysis. The equilibrium dissociation constant between SSL10 and prothrombin was 1.36 × 10(-7) M in surface plasmon resonance analysis. On the other hand, the resin failed to recover γ-carboxyglutamic acid (Gla) domain-less coagulation factors and prothrombin from warfarin-treated mice, suggesting that the Gla domain of the coagulation factors is essential for the interaction. SSL10 prolonged plasma clotting induced by the addition of Ca(2+) and factor Xa. SSL10 did not affect the protease activity of thrombin but inhibited the generation of thrombin activity in recalcified plasma. S. aureus produces coagulase that non-enzymatically activates prothrombin. SSL10 attenuated clotting induced by coagulase, but the inhibitory effect was weaker than that on physiological clotting, and SSL10 did not inhibit protease activity of staphylothrombin, the complex of prothrombin with coagulase. These results indicate that SSL10 inhibits blood coagulation by interfering with activation of coagulation cascade via binding to the Gla domain of coagulation factor but not by directly inhibiting thrombin activity. This is the first finding that the bacterial protein inhibits blood coagulation via targeting the Gla domain of coagulation factors.
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Affiliation(s)
- Saotomo Itoh
- Department of Molecular Health Sciences, Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1, Tanabe-Dori, Mizuho-ku, Nagoya 467-8603, Japan.
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21
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Adachi M, Okamoto S, Chujyo S, Arakawa T, Yokoyama M, Yamada K, Hayashi A, Akita K, Takeno M, Itoh S, Takii T, Waguri-Nagaya Y, Otsuka T, Hayakawa K, Miyazawa K, Onozaki K. Cigarette smoke condensate extracts induce IL-1-beta production from rheumatoid arthritis patient-derived synoviocytes, but not osteoarthritis patient-derived synoviocytes, through aryl hydrocarbon receptor-dependent NF-kappa-B activation and novel NF-kappa-B sites. J Interferon Cytokine Res 2013; 33:297-307. [PMID: 23452206 DOI: 10.1089/jir.2012.0107] [Citation(s) in RCA: 17] [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] [Indexed: 11/12/2022] Open
Abstract
Cigarette smoking is a major established environmental risk factor for rheumatoid arthritis (RA), and synoviocyte-derived proinflammatory cytokines are implicated in the pathogenesis of RA. We have reported that aryl hydrocarbon or cigarette smoke condensate (CSC) is able to upregulate the production of proinflammatory cytokines from an RA patient-derived synovial fibroblast cell line MH7A. In this study, we compared the effect of CSC on induction of interleukin-1β (IL-1β) from RA or osteoarthritis (OA) patient-derived synovial fibroblasts, and studied the mechanism of the effect of CSC. CSC induced IL-1β mRNA from RA patient-derived synoviocytes and MH7A, but not from OA patient-derived synoviocytes. CSC induced the mRNA and both precursor and mature forms of IL-1β, and caspase-1 activity in MH7A. The mechanism of CSC-induced IL-1β mRNA expression was investigated in MH7A. Reporter gene analyses and promoter pull-down assay indicated that 3 novel NF-κB sites at -3771 to -3762 bp, -3105 to -3096 bp, and -2787 to -2778 bp in the promoter region of the IL-1β gene, especially the far distal NF-κB site and NF-κB activation, are critical for the gene activation by CSC. CSC-induced NF-κB activation, IL-1β promoter activity, IL-1β mRNA upregulation, and CYP1A1 mRNA induction were all inhibited by an aryl hydrocarbon receptor (AhR) antagonist α-naphthoflavone. These results indicate that CSC induced IL-1β production from RA patient-derived synoviocytes, but not OA patient-derived synoviocytes, through AhR-dependent NF-κB activation and novel NF-κB sites.
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Affiliation(s)
- Miki Adachi
- Department of Molecular Health Sciences, Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, Japan
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Fujiwara N, Porcelli SA, Naka T, Yano I, Maeda S, Kuwata H, Akira S, Uematsu S, Takii T, Ogura H, Kobayashi K. Bacterial sphingophospholipids containing non-hydroxy fatty acid activate murine macrophages via Toll-like receptor 4 and stimulate bacterial clearance. Biochim Biophys Acta Mol Cell Biol Lipids 2013; 1831:1177-84. [DOI: 10.1016/j.bbalip.2013.03.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2012] [Revised: 03/04/2013] [Accepted: 03/22/2013] [Indexed: 10/27/2022]
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Itoh S, Yokoyama R, Murase C, Takii T, Tsuji T, Onozaki K. Staphylococcal superantigen-like protein 10 binds to phosphatidylserine and apoptotic cells. Microbiol Immunol 2012; 56:363-71. [PMID: 22486378 DOI: 10.1111/j.1348-0421.2012.00452.x] [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] [Indexed: 11/29/2022]
Abstract
Staphylococcal superantigen-like proteins (SSLs) are a family of exoproteins that have structural similarities to staphylococcal superantigens. Although SSLs do not have superantigenic activity, some of them have been reported to bind to host immune related molecules and they have been implicated in immune evasion by S. aureus. In this study, we showed that SSL10 is capable of binding to phospholipids. SSL10 bound to phosphatidylserine (PS) containing liposome, but not to phosphatidylcholine liposome. SSL10, but not SSL7, bound to PS containing liposome, suggesting that SSL10 specifically binds to PS. Analysis of PS binding ability among recombinant truncated SSL10 fragments revealed that the β-barrel in the N-terminal oligonucleotide/oligosaccharide-binding (OB)-fold domain contributes to PS binding capacity. Fluorescein isothiocyanate labeled OB-fold of SSL10 stained hydrogen peroxide treated Jurkat cells. Annexin V is widely utilized for detection of apoptosis. Unlike annexin V, the OB-fold domain of SSL10 also bound to apoptotic cells in the presence of EDTA, suggesting that the OB-fold of SSL10 recognizes PS and apoptotic cells in a Ca(2+) independent manner. These findings suggest SSL10 and its derived peptides may be a novel detection tool for apoptotic cells.
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Affiliation(s)
- Saotomo Itoh
- Department of Molecular Health Sciences, Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1, Tanabe-Dori, Mizuho-ku, Nagoya, Japan.
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Ozeki Y, Hirayama Y, Takii T, Yamamoto S, Kobayashi K, Matsumoto S. Loss of anti-mycobacterial efficacy in mice over time following vaccination with Mycobacterium bovis bacillus Calmette-Guérin. Vaccine 2011; 29:6881-7. [DOI: 10.1016/j.vaccine.2011.07.051] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2011] [Revised: 07/10/2011] [Accepted: 07/16/2011] [Indexed: 11/16/2022]
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Okamoto S, Adachi M, Chujo S, Yamada K, Akita K, Itoh S, Takii T, Hayakawa K, Onozaki K. Etiological role of cigarette smoking in rheumatoid arthritis: Nasal exposure to cigarette smoke condensate extracts augments the development of collagen-induced arthritis in mice. Biochem Biophys Res Commun 2011; 404:1088-92. [PMID: 21195061 DOI: 10.1016/j.bbrc.2010.12.118] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [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: 12/20/2010] [Accepted: 12/21/2010] [Indexed: 11/22/2022]
Abstract
Cigarette smoking is a major environmental risk factor for rheumatoid arthritis (RA). However, the experimental bases supporting the etiological role of cigarette smoking in RA have not been fully provided. We have reported that cigarette smoke condensate (CSC), by means of subcutaneous injection into DBA/1J mice with collagen and complete Freund's adjuvant or intraperitoneal injection one day before immunization, augmented the development of arthritis in the mouse model of collagen type II-induced arthritis (CIA). However, these experimental procedures may not be appropriate for cigarette smoking. In this study, we nasally exposed mice to mainstream CSC and found that CSC augmented the induction and development of arthritis and antibody level against collagen. Histological examination confirmed the augmenting effect of CSC. These findings provide experimental bases supporting the etiological role of cigarette smoking in RA.
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Affiliation(s)
- Shosuke Okamoto
- Department of Molecular Health Sciences, Graduate School of Pharmaceutical Sciences, Nagoya City University, Mizuho 3-1, Nagoya 467-8603, Japan
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Xu J, Itoh Y, Hayashi H, Takii T, Miyazawa K, Onozaki K. Dihydrotestosterone Inhibits Interleukin-1.ALPHA. or Tumor Necrosis Factor .ALPHA.-Induced Proinflammatory Cytokine Production via Androgen Receptor-Dependent Inhibition of Nuclear Factor-.KAPPA.B Activation in Rheumatoid Fibroblast-Like Synovial Cell Line. Biol Pharm Bull 2011; 34:1724-30. [DOI: 10.1248/bpb.34.1724] [Citation(s) in RCA: 20] [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] [Indexed: 11/22/2022]
Affiliation(s)
- Jian Xu
- Department of Molecular Health Sciences, Graduate School of Pharmaceutical Sciences, Nagoya City University
| | - Yuka Itoh
- Department of Drug Metabolism and Disposition, Graduate School of Pharmaceutical Sciences, Nagoya City University
| | - Hidetoshi Hayashi
- Department of Drug Metabolism and Disposition, Graduate School of Pharmaceutical Sciences, Nagoya City University
| | - Takemasa Takii
- Department of Molecular Health Sciences, Graduate School of Pharmaceutical Sciences, Nagoya City University
| | - Keiji Miyazawa
- Central Research Laboratories, Kissei Pharmaceutical Co., Ltd
| | - Kikuo Onozaki
- Department of Molecular Health Sciences, Graduate School of Pharmaceutical Sciences, Nagoya City University
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Chujo S, Okamoto S, Sunahara R, Adachi M, Yamada K, Hayashi H, Takii T, Hayakawa K, Onozaki K. Cigarette smoke condensate extracts augment collagen-induced arthritis in mice. Int Immunopharmacol 2010; 10:1194-9. [PMID: 20620226 DOI: 10.1016/j.intimp.2010.06.026] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2009] [Revised: 05/24/2010] [Accepted: 06/23/2010] [Indexed: 11/16/2022]
Abstract
Although cigarette smoking is a solid environmental risk factor for rheumatoid arthritis (RA) as revealed by epidemiological studies, the scientific basis has not been provided. Proinflammatory cytokines produced by synoviocytes are implicated in the pathogenesis of RA. As cigarette smoke condensate (CSC) is able to up-regulate the production of proinflammatory cytokines from human fibroblast-like synoviocytes, we studied the effect of CSC on induction of arthritis in the mouse model of collagen type II-induced arthritis (CIA). When mainstream CSC or sidestream CSC was administered into DBA/1J mice at the time of immunization with collagen and complete Freund adjuvant, CSC dose-dependently augmented the induction and clinical development of arthritis at both young and older mice. Peritoneal injected mainstream CSC one day before immunization also exhibited the augmenting effect, suggesting the systemic effect of CSC. These results support the etiological role of cigarette smoking in RA.
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Affiliation(s)
- Satomi Chujo
- Department of Molecular Health Sciences, Graduate School of Pharmaceutical Sciences, Nagoya City University, Mizuho, Nagoya 467-8603, Japan
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Ito T, Takii T, Maruyama M, Hayashi D, Wako T, Asai A, Horita Y, Taniguchi K, Yano I, Yamamoto S, Onozaki K. Effectiveness of BCG vaccination to aged mice. Immun Ageing 2010; 7:12. [PMID: 20809944 PMCID: PMC2936867 DOI: 10.1186/1742-4933-7-12] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/13/2010] [Accepted: 09/01/2010] [Indexed: 12/21/2022]
Abstract
Background The tuberculosis (TB) still increases in the number of new cases, which is estimated to approach 10 million in 2010. The number of aged people has been growing all over the world. Ageing is one of risk factors in tuberculosis because of decreased immune responses in aged people. Mycobacterium bovis Bacillus Calmette Guérin (BCG) is a sole vaccine currently used for TB, however, the efficacy of BCG in adults is still a matter of debate. Emerging the multidrug resistant Mycobacterium tuberculosis (MDR-TB) make us to see the importance of vaccination against TB in new light. In this study, we evaluated the efficacy of BCG vaccination in aged mice. Results The Th1 responses, interferon-γ production and interleukin 2, in BCG inoculated aged mice (24-month-old) were comparable to those of young mice (4- to 6-week-old). The protection activity of BCG in aged mice against Mycobacterium tuberculosis H37Rv was also the same as young mice. Conclusion These findings suggest that vaccination in aged generation is still effective for protection against tuberculosis.
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Affiliation(s)
- Tsukasa Ito
- Department of Molecular Health Sciences, Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1 Tanabe, Mizuho, Nagoya 467-8603, Japan.
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Hayashi D, Takii T, Mukai T, Makino M, Yasuda E, Horita Y, Yamamoto R, Fujiwara A, Kanai K, Kondo M, Kawarazaki A, Yano I, Yamamoto S, Onozaki K. Biochemical characteristics amongMycobacterium bovisBCG substrains. FEMS Microbiol Lett 2010; 306:103-9. [DOI: 10.1111/j.1574-6968.2010.01947.x] [Citation(s) in RCA: 15] [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: 11/28/2022] Open
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Arakawa T, Hayashi H, Itoh S, Takii T, Onozaki K. IL-1-induced ERK1/2 activation up-regulates p21Waf1/Cip1 protein by inhibition of degradation via ubiquitin-independent pathway in human melanoma cells A375. Biochem Biophys Res Commun 2010; 392:369-72. [DOI: 10.1016/j.bbrc.2010.01.027] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2010] [Accepted: 01/08/2010] [Indexed: 11/29/2022]
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Onozaki K, Chujo S, Okamoto S, Sunahara R, Itoh Y, Hayashi H, Takii T, Hayakawa K. Cigarette smoke condensate extracts induce proinflammatory cytokines from synovial cells and exacerbate collagen-induced arthritis in mice. Cytokine 2009. [DOI: 10.1016/j.cyto.2009.07.395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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32
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Hayashi D, Takii T, Fujiwara N, Fujita Y, Yano I, Yamamoto S, Kondo M, Yasuda E, Inagaki E, Kanai K, Fujiwara A, Kawarazaki A, Chiba T, Onozaki K. Comparable studies of immunostimulating activitiesin vitroamongMycobacterium bovisbacillus Calmette-Guérin (BCG) substrains. ACTA ACUST UNITED AC 2009; 56:116-28. [DOI: 10.1111/j.1574-695x.2009.00559.x] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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33
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Uenishi Y, Takii T, Yano I, Sunagawa M. Separation and molecular characterization of mycolic acid from the cell wall skeleton of Mycobacterium bovis BCG Tokyo 172 (SMP-105) and BCG substrains by normal-phase high performance liquid chromatography and liquid chromatography/mass spectrometry. J Microbiol Methods 2009; 77:320-2. [DOI: 10.1016/j.mimet.2009.03.006] [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] [Received: 10/24/2008] [Revised: 03/04/2009] [Accepted: 03/09/2009] [Indexed: 11/15/2022]
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Shizu M, Itoh Y, Sunahara R, Chujo S, Hayashi H, Ide Y, Takii T, Koshiko M, Chung SW, Hayakawa K, Miyazawa K, Hirose K, Onozaki K. Cigarette smoke condensate upregulates the gene and protein expression of proinflammatory cytokines in human fibroblast-like synoviocyte line. J Interferon Cytokine Res 2008; 28:509-21. [PMID: 18729741 DOI: 10.1089/jir.2007.0081] [Citation(s) in RCA: 29] [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] [Indexed: 11/12/2022] Open
Abstract
Rheumatoid arthritis (RA) is characterized by proliferation of synoviocytes that produce proinflammatory cytokines, which are implicated in the pathogenesis of RA. When human fibroblast-like synoviocytes line MH7A was treated with cigarette smoke condensate (CSC), either mainstream or sidestream, expression levels of interleukin (IL)-1alpha, IL-1beta, IL-6, IL-8, and CYP1A1 mRNA were upregulated in both time- and dose-dependent manners. The upregulatory effects of CSC on these cytokines were not significantly inhibited by alpha-naphthoflavone, an aryl hydrocarbon receptor (AhR) antagonist, suggesting that the effects of CSC were independent of AhR. Cycloheximide treatment indicated that the augmenting effect of CSC on IL-1alpha, IL-1beta and IL-8, but not IL-6 and CYP1A1, mRNA expression requires de novo protein synthesis. CSC also induced cytokines at protein levels and further augmented the effects of tumor necrosis factor alpha on induction of these cytokines at both mRNA and protein levels. These results support the epidemiological studies indicating a strong association between heavy cigarette smoking and pathogenesis of RA.
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Affiliation(s)
- Miki Shizu
- Department of Molecular Health Sciences, Graduate School of Pharmaceutical Sciences, Nagoya City University, Mizuho, Nagoya, Japan
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Enya K, Hayashi H, Takii T, Ohoka N, Kanata S, Okamoto T, Onozaki K. The interaction with Sp1 and reduction in the activity of histone deacetylase 1 are critical for the constitutive gene expression of IL-1 alpha in human melanoma cells. J Leukoc Biol 2007; 83:190-9. [PMID: 17906119 DOI: 10.1189/jlb.0106008] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
A375-6 human melanoma cells are sensitive to the antiproliferative effect of IL-1. After a long period of culturing, we have obtained cells resistant to IL-1. The resistant clone A375-R8 constitutively produced IL-1 alpha. In this study, we identified a sequence, CGCC, located at -48 to -45 upstream of the transcription start site, to be essential for the constitutive IL-1 alpha gene activation. Specificity protein 1 (Sp1) and Sp3 bound to the nucleotide containing the sequence. Although the binding level to the nucleotide and expression level of Sp1 and Sp3 are comparable in A375-R8 and A375-6 cells, transactivation activity of Sp1 is higher in A375-R8 cells as compared with A375-6 cells. Sp3 could not transactivate the IL-1 alpha promoter. These results suggest that Sp1 but not Sp3 is important for IL-1 alpha gene activation. Trichostatin A (TSA), an inhibitor of histone deacetylase (HDAC), greatly augmented the IL-1 alpha promoter activity in A375-6 cells to the level comparable with that in A375-R8 cells. TSA also induced IL-1 alpha mRNA expression in A375-6 cells. Sp1 and Sp3 bound to HDAC1 in A375-R8 and A375-6 cells. The chromatin immunoprecipitation assay revealed the binding of Sp1 and HDAC1 to the promoter region of the IL-1 alpha gene. The activities of HDAC bound to Sp1 and Sp3, and that of HDAC1 was lower in A375-R8 cells as compared with A375-6 cells. These results indicate that the reduction in the activity and interaction of HDAC1 with Sp1 are critical for the constitutive IL-1 alpha gene expression.
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Affiliation(s)
- Kazuaki Enya
- Department of Molecular Health Sciences, Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1 Tanabe-dori, Mizuho-ku, Nagoya, Aichi 467-8603, Japan
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Itoh Y, Hayashi H, Xu J, Takii T, Miyazawa K, Ariga H, Akahoshi T, Waguri-Nagaya Y, Otsuka T, Okamoto T, Onozaki K. Dihydrotestosterone inhibits tumor necrosis factor alpha induced interleukin-1alpha mRNA expression in rheumatoid fibroblast-like synovial cells. Biol Pharm Bull 2007; 30:1140-3. [PMID: 17541168 DOI: 10.1248/bpb.30.1140] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Rheumatoid arthritis (RA) is a chronic inflammatory disease that affects multiple synovial joints. Proinflammatory cytokines, such as interleukin-1 (IL-1) and tumor necrosis factor (TNF)alpha play important roles as principle inflammatory and destructive components of the disease. RA is known to be associated with significant gender differences in its prevalence and clinical features. We found that a potent androgen, 5alpha-dihydrotestosterone (DHT) inhibits IL-1alpha mRNA expression induced by TNFalpha and the DHT effect was inhibited by an androgen receptor antagonist, hydroxyflutamide (OHF). DHT inhibited the NF-kappaB activation induced by TNFalpha in a manner dependent on the androgen receptor (AR). These results suggest that DHT inhibits the TNFalpha-induced IL-1alpha mRNA expression by inhibiting NF-kappaB activation, and contributes to the gender differences of the disease.
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Affiliation(s)
- Yuka Itoh
- Department of Molecular Health Sciences, Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, Japan
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Chiba T, Takii T, Nishimura K, Yamamoto Y, Morikawa H, Abe C, Onozaki K. Synthesis of new sugar derivatives from Stachys sieboldi Miq and antibacterial evaluation against Mycobacterium tuberculosis, Mycobacterium avium, and Staphylococcus aureus. Bioorg Med Chem Lett 2007; 17:2487-91. [PMID: 17331717 DOI: 10.1016/j.bmcl.2007.02.024] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [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: 09/03/2006] [Revised: 01/22/2007] [Accepted: 02/09/2007] [Indexed: 11/27/2022]
Abstract
A series of sugar derivatives (7-14) were synthesized from stachyose, a sugar compound of Stachys sieboldi Miq, and evaluated for antibacterial activity against Mycobacterium tuberculosis, Mycobacterium avium, and Staphylococcus aureus, and their structure-activity relationships were studied. The results showed that the compound OCT359 (allyl O-(2,3,4,6-tetra-O-acetyl-alpha-D-galactopyranosyl)-(1-->6)-O-(2,3,4-tri-O-acetyl-alpha-D-galactopyranosyl)-(1-->6)-O-2,3,4-tri-O-acetyl-beta-D-glucopyranoside) (12) exhibited in vitro antibacterial activity. The allyl group at C-1 and the acetoxy groups of the manninotrioside were requisite for the antibacterial activity.
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Affiliation(s)
- Taku Chiba
- Department of Molecular Health Sciences, Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, Japan
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38
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Takii T, Hamasaki S, Hirano K, Abe C, Onozaki K. Simple fibroblast-based assay to test the pyrazinamide susceptibility of Mycobacterium tuberculosis. Antimicrob Agents Chemother 2005; 49:804-7. [PMID: 15673774 PMCID: PMC547215 DOI: 10.1128/aac.49.2.804-807.2005] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
A simple fibroblast-based assay (SFA) was found to be efficient in evaluating the susceptibilities of clinical isolates of Mycobacterium tuberculosis to pyrazinamide (PZA). Forty-five clinical isolates were examined. The MICs of PZA for susceptible strains in an SFA were between 3.13 and 12.5 microg/ml, and the MICs of PZA for resistant strains were more than 100 microg/ml.
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Affiliation(s)
- Takemasa Takii
- Department of Molecular Health Sciences, Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1 Tanabe-Dori, Mizuho-Ku, Nagoya 467-8603, Japan.
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Matsumura T, Hayashi H, Takii T, Thorn CF, Whitehead AS, Inoue JI, Onozaki K. TGF-β down-regulates IL-1α-induced TLR2 expression in murine hepatocytes. J Leukoc Biol 2004; 75:1056-1061. [PMID: 15039464 DOI: 10.1189/jlb.0104108] [Citation(s) in RCA: 15] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2004] [Revised: 02/05/2004] [Accepted: 02/09/2004] [Indexed: 01/15/2023] Open
Abstract
We have previously reported that the proinflammatory cytokine interleukin (IL)-1alpha can up-regulate functional Toll-like receptor 2 (TLR2) expression in primary-cultured murine hepatocytes, and bacterial lipopeptide (BLP) is capable of signaling through TLR2 to induce serum amyloid A (SAA) expression in hepatocytes. In the present study, we investigated the effect of the anti-inflammatory cytokine transforming growth factor-beta (TGF-beta) on TLR2 expression in primary-cultured murine hepatocytes. At the mRNA and protein levels, TGF-beta up-regulated TLR2 expression but inhibited TLR2 expression induced by IL-1alpha at 24 h. BLP-induced SAA promoter activity could be augmented by pretreatment with IL-1alpha but not TGF-beta or the combination of TGF-beta and IL-1alpha. TLR2 promoter activity and nuclear factor (NF)-kappaB activation by IL-1alpha were inhibited by TGF-beta treatment. Pretreatment with TGF-beta strongly suppressed IL-1alpha-induced TLR2 promoter activity and NF-kappaB activation, which was consistent with the down-regulation of type I IL-1 receptor (IL-1RI) mRNA expression. IL-1alpha up-regulated IL-1RI mRNA, but it was inhibited by the treatment with TGF-beta. These results suggest that TGF-beta suppresses the induction of TLR2 expression by IL-1alpha through down-regulation of IL-1RI expression. These results also demonstrate the disparity between IL-1alpha and TGF-beta in regulating TLR2-mediated SAA production in hepatocytes.
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Affiliation(s)
- Takayuki Matsumura
- Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1 Tanabe-dori, Mizuho-ku, Nagoya, Aichi 467-8603, Japan
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Tamaki A, Hayashi H, Nakajima H, Takii T, Katagiri D, Miyazawa K, Hirose K, Onozaki K. Polycyclic aromatic hydrocarbon increases mRNA level for interleukin 1 beta in human fibroblast-like synoviocyte line via aryl hydrocarbon receptor. Biol Pharm Bull 2004; 27:407-10. [PMID: 14993811 DOI: 10.1248/bpb.27.407] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Rheumatoid arthritis (RA) is characterized by proliferation of synoviocytes that produce proinflammatory cytokines, which is implicated in the pathogenesis of the disease. Among the cytokines, IL-1 is the critical mediator of the disease. When human fibroblast-like synoviocytes line, MH7A, was treated with 3-methylcholanthrene (3-MC), a polycyclic aromatic hydrocarbon (PAH), mRNA of IL-1beta was up-regulated. MH7A cells express functional aryl hydrocarbon receptor (AhR) as shown by 3-MC-inducible CYP1A1 mRNA expression. The effect of 3-MC was inhibited by alpha-napthoflavone, an AhR antagonist, indicating that the effect of 3-MC is mediated via AhR. Benzo[a]pyrene (B[a]P) and 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) also up-regulated mRNA level of IL-1beta in the cells via AhR. As PAHs are much contained in cigarette smoke, these findings provide the possible basis for epidemiological studies indicating a strong association between heavy cigarette smoking and outcome of RA.
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Affiliation(s)
- Ayako Tamaki
- Department of Molecular Health Sciences, Graduate School of Pharmaceutical Sciences, Nagoya City University, Mizuho, Nagoya, Japan
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41
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Ono K, Yoshihara K, Suzuki H, Tanaka KF, Takii T, Onozaki K, Sawada M. Preservation of hematopoietic properties in transplanted bone marrow cells in the brain. J Neurosci Res 2003; 72:503-7. [PMID: 12704811 DOI: 10.1002/jnr.10588] [Citation(s) in RCA: 32] [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] [Indexed: 12/18/2022]
Abstract
Recent studies have described the possible transdifferentiation of bone marrow cells (BMC) into neurons and glia when they migrate to the brain. However, we have reported that some immature BMC migrating into the brain parenchyma after bone marrow transplantation express early hematopoietic markers but not neural or glial markers. The present study further characterizes transplanted BMC that migrate to the brain. Double immunolabeling confirmed that BMC migrating to the brain expressed hematopoietic but not neural markers, such as nestin, microtubule-associated protein-2 and glial fibrillary acidic protein, even 4 and 18 weeks after bone marrow transplantation. BMC that expressed green fluorescent protein also expressed hematopoietic but not neural markers when cultured with mixed brain cells according to double immunolabeling and single-cell dissection using a laser. Analysis of the DNA content indicated that most of the migrated BMC were arrested at the G0/G1 phase, and aneuploidy or tetraploidy was undetectable. Thus, BMC that migrate to the brain probably have preserved hematopoietic properties under physiological conditions.
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Affiliation(s)
- Kenji Ono
- Department of Molecular Health Sciences, Graduate School of Pharmaceutical Sciences, Nagoya City University, Mizuho, Nagoya, Aichi, Japan
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Matsumura T, Degawa T, Takii T, Hayashi H, Okamoto T, Inoue JI, Onozaki K. TRAF6-NF-kappaB pathway is essential for interleukin-1-induced TLR2 expression and its functional response to TLR2 ligand in murine hepatocytes. Immunology 2003; 109:127-36. [PMID: 12709026 PMCID: PMC1782941 DOI: 10.1046/j.1365-2567.2003.01627.x] [Citation(s) in RCA: 69] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
We have previously reported that the expressions of TLR2 and TLR4 mRNA are differentially regulated in mouse liver and in the parenchymal cells. In the present study, we investigated the mechanism of the up-regulatory effects of interleukin-1alpha (IL-1alpha), tumour necrosis factor-alpha (TNF-alpha), lipopolysaccharide (LPS), or bacterial lipoprotein (BLP) on TLR2 mRNA expression in primary cultured murine hepatocytes. Although TLR2 mRNA stability was not affected, these treatments enhanced NF-kappaB activity and TLR2 gene transcription simultaneously. The up-regulation of TLR2 transcription in response to these reagents was completely inhibited by blocking the NF-kappaB activation pathway, demonstrating a pivotal role of NF-kappaB activation in the regulation of hepatocyte TLR2 transcription. The expression of TLR2 protein by hepatocytes was also remarkably up-regulated by IL-1alpha and, to a lesser extent, by TNF-alpha as well, but not by LPS or BLP. In addition, pretreatment of mice with IL-1alpha markedly increased the BLP (a ligand for TLR2)-induced serum level of serum amyloid A (SAA), an acute-phase protein predominantly produced by hepatocytes, indicating that IL-1alpha may also up-regulate functional TLR2 in vivo. These results demonstrate that IL-1alpha, through activating the TRAF6-NF-kappaB pathway, serves as the most potent inducer for TLR2 up-regulation, and plays an important role in the regulation of hepatocyte functions by augmenting the hepatocyte response to bacteria or bacterial products.
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Affiliation(s)
- Takayuki Matsumura
- Department of Molecular Health Sciences, Graduate School of Pharmaceutical Sciences, Nagoya City University, Japan
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43
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Takii T, Kawashima S, Chiba T, Hayashi H, Hayashi M, Hiroma H, Kimura H, Inukai Y, Shibata Y, Nagatsu A, Sakakibara J, Oomoto Y, Hirose K, Onozaki K. Multiple mechanisms involved in the inhibition of proinflammatory cytokine production from human monocytes by N-(p-coumaroyl)serotonin and its derivatives. Int Immunopharmacol 2003; 3:273-7. [PMID: 12586608 DOI: 10.1016/s1567-5769(02)00207-2] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We have reported that N-(p-coumaroyl)serotonin(CS) isolated from safflower oil cake (Carthamus tinctorius L.) inhibits the production of proinflammatory cytokines by endotoxin (LPS)- stimulated human monocytes. In this study, the effects of CS and its three derivatives, N-(trans-cinnamoyl)serotonin (Cin.S), N-(trans-cinnamoyl)tryptamine (Cin.T), and N-(p-coumaroyl)tryptamine (CT) on the production of proinflammatory cytokines were compared. Cin.S possessed radical scavenging activity at a comparable level to CS, while CT and Cin.T exhibited lower activity, suggesting that hydroxyl group in serotonin is essential for the antioxidative activity. CS and CT strongly inhibited the production of proinflammatory cytokines (IL-1alpha, IL-1beta, IL-6, IL-8, and TNF-alpha) from LPS-stimulated human monocytes. However, Cin.S inhibited the production of only IL-1alpha and IL-1beta, and Cin.T inhibited none of these cytokines production. CS and CT markedly inhibited the protein synthesis in monocytes, the inhibitory effect of Cin.S was moderate, and that of Cin.T was quite weak. These results indicate that CS and its derivatives inhibit the production of proinflammatory cytokines through multiple mechanisms.
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Affiliation(s)
- Takemasa Takii
- Department of Molecular Health Sciences, Graduate School of Pharmaceutical Sciences, Nagoya City University, Mizuho, Nagoya 467-8623, Japan
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Takii T, Yamamoto Y, Chiba T, Abe C, Belisle JT, Brennan PJ, Onozaki K. Simple fibroblast-based assay for screening of new antimicrobial drugs against Mycobacterium tuberculosis. Antimicrob Agents Chemother 2002; 46:2533-9. [PMID: 12121929 PMCID: PMC127360 DOI: 10.1128/aac.46.8.2533-2539.2002] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
In this study, we propose a simple and reproducible host-cell-based assay for the screening of antimycobacterial drugs that is suitable for drug discovery. The method evaluates both antimycobacterial activity of the drugs and their cytotoxicity to host cells. The basis of this simple fibroblast-based assay (SFA) is that cells of human lung fibroblast cell line MRC-5, which are highly sensitive to mycobacterial cytotoxicity, are killed by virulent Mycobacterium tuberculosis strain H(37)Rv bacilli in response to the viability of bacilli. Clinically used antimycobacterial drugs inhibited the mycobacterial cytotoxicity to MRC-5 cells in a dose-dependent manner. MICs of isoniazid, streptomycin, rifampin, and ethambutol determined by this SFA (0.428, 1.816, 0.013, and 3.465 microg/ml, respectively) were within 1 log of MICs determined by the broth dilution test (BDT) using Middlebrook 7H9 medium. The MIC of pyrazinamide, which exhibits bactericidal activity only at a high dose by BDT (1,231 microg/ml at pH 6.6 and 492 microg/ml at pH 5.8), was 3.847 microg/ml in the modified method of SFA. On the other hand, sodium azide, a toxic agent for both mammalian cells and bacteria, exhibited cytotoxicity to fibroblasts at a dose lower than that required to inhibit mycobacterial growth. Thus, this fibroblast-based method enabled us to evaluate both antibacterial activity of drugs and their cytotoxicity to human cells within a short period of time.
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Affiliation(s)
- Takemasa Takii
- Department of Molecular Health Sciences, Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1 Tanabe-Dori, Mizuho-Ku, Nagoya 467-8603, Japan.
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45
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Maeda Y, Makino M, Crick DC, Mahapatra S, Srisungnam S, Takii T, Kashiwabara Y, Brennan PJ. Novel 33-kilodalton lipoprotein from Mycobacterium leprae. Infect Immun 2002; 70:4106-11. [PMID: 12117918 PMCID: PMC128180 DOI: 10.1128/iai.70.8.4106-4111.2002] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2002] [Revised: 04/04/2002] [Accepted: 05/01/2002] [Indexed: 11/20/2022] Open
Abstract
A novel Mycobacterium leprae lipoprotein LpK (accession no. ML0603) was identified from the genomic database. The 1,116-bp open reading frame encodes a 371-amino-acid precursor protein with an N-terminal signal sequence and a consensus motif for lipid conjugation. Expression of the protein, LpK, in Escherichia coli revealed a 33-kDa protein, and metabolic labeling experiments and globomycin treatment proved that the protein was lipidated. Fractionation of M. leprae demonstrated that this lipoprotein was a membrane protein of M. leprae. The purified lipoprotein was found to induce production of interleukin-12 in human peripheral blood monocytes. The studies imply that M. leprae LpK is involved in protective immunity against leprosy and may be a candidate for vaccine design.
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Affiliation(s)
- Yumi Maeda
- Department of Microbiology, Leprosy Research Center, National Institute of Infectious Diseases, Higashimurayama, Tokyo 189-0002, Japan.
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46
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Hattori T, Itoh S, Hayashi H, Chiba T, Takii T, Yoshizaki K, Onozaki K. CHOP, a basic leucine zipper transcriptional factor, contributes to the antiproliferative effect of IL-1 on A375 human melanoma cells through augmenting transcription of IL-6. J Interferon Cytokine Res 2001; 21:323-32. [PMID: 11429163 DOI: 10.1089/107999001300177510] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Interleukin-1 (IL-1) inhibits the proliferation of A375 human melanoma cells. We have demonstrated previously that p38 mitrogen-activated protein kinase (MAPK) mediated the antiproliferative effect of IL-1 partially through the downregulation of activity and protein level of ornithine decarboxylase (ODC). In this study, we investigated the role of CCAAT/enhancer-binding protein (C/EBP) homologous protein (CHOP), one of the p38 MAPK target transcriptional factors. The mRNA level of CHOP was not affected by IL-1 treatment in A375-6 cells. Unexpectedly, CHOP was constitutively phosphorylated, and IL-1 or p38 MAPK inhibitor, SB203580, did not affect the phosphorylation level. However, A375-6 cells exhibited enhanced sensitivity to IL-1 by transfecting CHOP expression plasmid and reduced sensitivity to IL-1 by antisense CHOP mRNA expression plasmid. Furthermore, CHOP appeared to regulate positively IL-6 production at the transcriptional level. The experiments using CHOP muteins revealed that dimerization ability - but not p38 MAPK-dependent phosphorylation or DNA binding activity - is important for the IL-6 inducing activity of CHOP. These results indicate that CHOP contributes to the IL-1 growth-inhibitory signal through augmenting IL-6 production.
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Affiliation(s)
- T Hattori
- Department of Hygienic Chemistry, Faculty of Pharmaceutical Sciences, Nagoya City University, Mizuho, Nagoya 467-8603, Japan
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47
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Takii T, Abe C, Tamura A, Ramayah S, Belisle JT, Brennan PJ, Onozaki K. Interleukin-1 or tumor necrosis factor-alpha augmented the cytotoxic effect of mycobacteria on human fibroblasts: application to evaluation of pathogenesis of clinical isolates of Mycobacterium tuberculosis and M. avium complex. J Interferon Cytokine Res 2001; 21:187-96. [PMID: 11331042 DOI: 10.1089/107999001750133258] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Mycobacteria-induced in vitro events reflecting human tuberculosis can contribute to the evaluation of the pathogenesis of Mycobacterium tuberculosis (MTB). In this study, we propose such an in vitro method based on live mycobacteria-induced cytotoxicity to human cell lines. When human lung-derived normal fibroblast cell line MRC-5 was infected with various strains of mycobacteria (M. tuberculosis H(37)Rv and H(37) Ra, Mycobacterium avium 427S and 2151SmO, and Mycobacterium bovis BCG Pasteur and Tokyo), the fibroblasts were killed by mycobacteria according to the degree of virulence. Other human originated macrophage (U-937, THP-1), myeloid (HL-60), and epithelial carcinoma (A549) cell lines exhibited a similar cytotoxic response to virulent mycobacteria. MRC-5 was most susceptible to virulent mycobacteria among various human cell lines examined. The cytotoxicity was enhanced by the proinflammatory cytokines, interleukin-1 (IL-1) and tumor necrosis factor-a (TNF-alpha), which in the absence of mycobacteria stimulate the growth of normal human fibroblasts. This in vitro evaluation system was applied to clinical isolates of drug-sensitive MTB (DS-MTB), drug-resistant MTB (DR-MTB) including multidrug-resistant (MDR-MTB), and M. avium complex (MAC). MTB strains (n = 24) exhibited strong cytotoxic activity, but MAC strains (n = 5) had only weak activity. Furthermore, there was no significant difference in cytotoxicity between DS-MTB (n = 11) and DR-MTB (n = 13). Collectively, these results suggest that this new in vitro system is useful for evaluating the pathogenesis of mycobacteria and that there was no difference in the pathogenesis between drug-susceptible and drug-resistant clinical isolates.
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Affiliation(s)
- T Takii
- Department of Hygienic Chemistry, Faculty of Pharmaceutical Sciences, Nagoya City University, Nagoya 467-8603, Japan
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Abstract
Interleukin 1 (IL-1) is one of the inflammatory cytokines, which plays a pivotal role in both host defense and homeostasis. Its signal is transduced by type I IL-1 receptor (IL-1RI). This report gives an insight into the regulatory mechanism of IL-1RI in both in vitro and in vivo. IL-1 up-regulates IL-1RI through prostaglandin E2 (PGE2) production on human fibroblasts. However, in the presence of indomethacin, IL-1 down-regulates the receptor by destabilizing IL-1 receptor mRNA. Type I and type II interferons (IFNs) up-regulate the expression of IL-1RI. This up-regulation leads to the increasing susceptibility of IL-1RI to IL-1, as the DNA binding of IL-1-induced NF-kappa B and the production of IL-1-induced IL-6 from the fibroblasts are augmented by pretreatment with IFNs. On the other hand, the expression of cell surface IL-1RI is inhibited by tyrosine kinase inhibitors, herbimycin and genistein, resulting in reduction of the kinase activity of IRAK (IL-1 receptor associated kinase) and IL-1-induced IL-6 production from the fibroblasts. Lipopolysaccharide (LPS) augments the expression of IL-1RI mRNA and cell surface molecule in the hepatocytes of mice in vivo, and the augmentation is mediated by the interaction of IL-1, IL-6, and of glucocorticoid (GC). When hepatocytes were pretreated with dexamethasone (Dex) and IL-6, the activation of IRAK was augmented in response to IL-1, indicating that IL-1 signaling is also up-regulated. In addition, IL-1 treatment ather combined administration of Dex and IL-6 into mice markedly increased the serum level of serum amyloid A. These data suggest that the expression of IL-1RI is regulated by inflammatory cytokines, PGE2, GC and LPS in vitro and in vivo. This study shows that the biological activity of IL-1 can be controlled by regulating the expression of IL-1RI, and therefore proposes the use of pharmaceutical drugs for the regulation of cytokine expression.
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Affiliation(s)
- T Takii
- Faculty of Pharmaceutical Sciences, Nagoya City University, 3-1, Tanabe-Dori, Mizuho-ku, Nagoya 467-8603, Japan
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Matsumura T, Ito A, Takii T, Hayashi H, Onozaki K. Endotoxin and cytokine regulation of toll-like receptor (TLR) 2 and TLR4 gene expression in murine liver and hepatocytes. J Interferon Cytokine Res 2000; 20:915-21. [PMID: 11054280 DOI: 10.1089/10799900050163299] [Citation(s) in RCA: 139] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Toll-like receptor (TLR) 2 and TLR4 are members of the interleukin-1 receptor (IL-1R) family and transduce similar signals as IL-1R in response to bacteria and bacterial components. In this study, we investigated the regulation of their gene expression in murine tissues, especially in the liver and hepatocytes. When mice were administered lipopolysaccharide (LPS), TLR2 mRNA was upregulated in the brain, heart, lung, liver, and kidney. In contrast, it was downregulated in the spleen. TLR4 mRNA was decreased in the brain. In the heart and lung, it increased, and it was not affected in the liver, kidney, and spleen. TLR mRNA was further analyzed in the liver and hepatocytes. Like LPS treatment, administration of IL-1, IL-6, or tumor necrosis factor (TNF) upregulated TLR2 mRNA. However, none of them affected the TLR4 mRNA level. In primary cultured hepatocytes, TLR2 mRNA was upregulated by LPS, IL-1, or TNF but not by IL-6 or dexamethasone. None of them affected TLR4 mRNA expression. Similar responses were observed in the murine hepatoma cell line Hepa 1-6. These results suggest that in infection with gram-negative bacteria, LPS and proinflammatory cytokines differentially regulate gene expression of TLR2 and TLR4 in murine hepatocytes, which may lead to pathologic and host defense reactions in the liver.
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Affiliation(s)
- T Matsumura
- Department of Hygienic Chemistry, Faculty of Pharmaceutical Sciences, Nagoya City University, Mizuho, Nagoya 467-8603, Japan
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50
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Takii T, Honda H, Sasayama S, Kobayashi T, Ikezawa H, Udaka S, Oomoto Y, Onozaki K. Human interleukin-1 receptor antagonist: large-scale expression in Bacillus brevis 47-5Q. J Interferon Cytokine Res 1999; 19:1325-31. [PMID: 10574626 DOI: 10.1089/107999099313000] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Interleukin-1 receptor antagonist (IL-1RA) has been used as a tool to study the biologic activity of IL-1 and as a possible therapeutic substance for inflammatory disease. To perform in vivo study, however, large quantities of IL-1RA are required. Bacillus brevis strains secrete large amounts of protein but little protease into the medium. Using B. brevis 47-5Q, we developed a large-scale expression system of human IL-1RA (HuIL-1RA). The bacteria secreted HuIL-1RA into the culture medium at very high levels, approximately 200 mg/L. The protein was isolated in one-step purification with monoclonal antibody (mAb) against HuIL-1RA. The IL-1RA molecule was determined to be functionally active by the inhibiting assay of HuIL-1-induced cell proliferation in a mouse T cell line, D10N4M.
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Affiliation(s)
- T Takii
- Department of Hygienic Chemistry, Faculty of Pharmaceutical Sciences, Nagoya City University, Nagoya, Japan
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