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MA20.02 GAD1 Expression and Its Methylation Become Indicators of Malignant Behavior in Thymic Epithelial Tumor. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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P2.03-22 Chromate Exposure Induces DNA Hypermethylation of the Mismatch Repair Gene MLH1 in Lung Cancer. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1469] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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MA20.03 DNA Methylation of MT1A and NPTX2 Genes Predict Malignant Behavior of Thymic Epithelial Tumors. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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P1.05-14 Autofluorescence Mode of Thoracoscope Improves Visceral Pleural Invasion Diagnosis in Non-Small Cell Lung Cancer. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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P1.14-16 DNA Methylation of GNG4、GHSR、HOXD9 and SALL3 Genes Predict Malignant Behavior of Thymic Epithelial Tumors. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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P1.05-04 Cone-Beam CT Confirms the Status of Transbronchial Biopsy Under Virtual Bronchoscopic Navigation for Peripheral Lung Lesions. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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P1.14-20 The Expression of DNA Methylation of GAD1 Gene is an Indicator of Malignant Behavior in Thymic Epithelial Tumor. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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P1.13-009 Macroscopic and Microscopic Lymphatic Remodeling Caused by VEGF-C Play a Key Role in Lymphatic Metastasis of Non-Small Cell Lung Cancer. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Stable neutral radicals of planar N2O2-type dipyrrin platinum complexes: hybrid radicals of the delocalized organic π-orbital and platinum d-orbital. Dalton Trans 2016; 45:6834-8. [PMID: 26875528 DOI: 10.1039/c5dt05039a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Neutral radicals of N2O2-dipyrrin platinum complexes were synthesized by the reaction of dipyrrin ligands with PtCl2(cod) and successive one-electron oxidation. The radicals are very stable even under aerobic and ambient conditions. X-ray crystallographic analysis revealed the stacking array of the planar dipyrrin complex moieties. The ESR signals were broadened and significantly downfield shifted. The absorption spectra exhibited NIR bands. These results indicated a delocalized radical character with a contribution by the platinum d-orbital.
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Safety and Tolerance of Oral Rehydration Solution (ORS) for Cisplatin-Based Chemotherapy in Patients with Lung Cancer. Ann Oncol 2013. [DOI: 10.1093/annonc/mdt460.72] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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18F-fluorodeoxyglucose positron emission tomography/computed tomography and the relationship between fluorodeoxyglucose uptake and the expression of hypoxia-inducible factor-1 , glucose transporter-1 and vascular endothelial growth factor in thymic epithelial tumours. Eur J Cardiothorac Surg 2013; 44:e105-12. [DOI: 10.1093/ejcts/ezt263] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
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Fluoroscopy-assisted thoracoscopic resection after computed tomography-guided bronchoscopic metallic coil marking for small peripheral pulmonary lesions. Eur J Cardiothorac Surg 2013; 44:e126-32. [DOI: 10.1093/ejcts/ezt220] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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A case of lung biopsy-proven MPO-ANCA positive granulomatosis with polyangiitis (GPA; Wegener's granulomatosis). Presse Med 2013. [DOI: 10.1016/j.lpm.2013.02.142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Abstract
BACKGROUND GPVI is a major platelet collagen signaling receptor. In rare cases of immune thrombocytopenic purpura (ITP), autoantibodies to GPVI result in receptor shedding. OBJECTIVES To investigate a possible pathogenic role of plasma anti-GPVI antibody located in a woman with lupus nephritis. METHODS Measured were (i) platelet aggregation to collagen and convulxin, (ii) platelet GPVI expression (flow cytometry and western blotting), (iii) plasma soluble GPVI (sGPVI, dual antibody ELISA), and (iv) plasma anti-GPVI antibody (ELISA using recombinant sGPVI). RESULTS In 2006 and early 2007, the patient had a normal platelet count but a virtual absence of platelet aggregation to collagen and convulxin. Her platelets responded normally to other agonists including cross-linking ITAM-dependent FcgammaRIIA by monoclonal antibody, IV.3. Flow cytometry and western blotting showed a platelet deficiency of GPVI. Plasma sGPVI levels were undetectable whereas ELISA confirmed the presence of anti-GPVI antibody. Sequencing revealed a normal GPVI cDNA structure. The patient's plasma and the isolated IgG3 fraction activated and induced GPVI shedding from normal platelets. A deteriorating clinical condition led to increasingly strict immunosuppressive therapy. This was globally associated with a fall in plasma anti-GPVI titres, the restoration of platelet GPVI and the convulxin response, and the loss of her nephrotic syndrome. CONCLUSIONS Our results show that this patient acquired a potent anti-GPVI IgG3 antibody with loss of GPVI and collagen-related platelet function. Further studies are required to determine whether anti-GPVI antibodies occur in other lupus patients with nephritis.
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[Surgically treated pleomorphic carcinoma of the lung]. KYOBU GEKA. THE JAPANESE JOURNAL OF THORACIC SURGERY 2009; 62:202-206. [PMID: 19280950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
We experienced 3 resected cases of pleomorphic carcinoma of the lung. Each cases were 74-year-old man (case 1), 74-year-old woman (case 2) and 69-year-old man (case 3). Two patients (case 1 and 2) were histologically diagnosed as pleomorphic carcinoma composed of spindle cell carcinoma with giant cell carcinoma. One patient (case 3) was similarly diagnosed as pleomorphic carcinoma composed of spindle cell carcinoma with adenocarcinoma and squamous cell carcinoma. Although lymph nodes metastasis were not recognized in all patients, invasion to vessels were recognized in 2 patients (case 1 and 3). In one patient (case 1), recurrence was recognized at contralateral side 1 month after surgery and he died of other disease 2 months after surgery. The other 2 patients were alive without recurrence 24 and 5 months after surgery. Recently it is reported that recurrence is recognized at early phase after surgery and prognosis is poor in a case with vessel invasions in spite of pathological NO state. Since one patient (case 3) had nonmetastatic lymph nodes with vessel invasions, careful observation is considered to be necessary.
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[Clinical analysis of tracheoplasty and bronchoplasty in primary lung cancer]. KYOBU GEKA. THE JAPANESE JOURNAL OF THORACIC SURGERY 2008; 61:951-956. [PMID: 18939431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
In our department, there were 482 thoracic surgeries for primary lung cancer between 1994 and 2007. We clinically reviewed cases that underwent tracheoplasty or bronchoplasty (n = 22, 4.6%). The patients consisted of 21 males and 1 female (66.5 +/- 12.0 years-old). All patients were smokers. The tissue forms were 19 squamous cell carcinomas, 2 adenocarcinomas, 1 large cell carcinoma, 1 adenoid cystic carcinoma and 1 carcinoid, including 2 multiple carcinomas. Sleeve resections involved the trachea in 1, upper lobes in 13, lower lobes in 3, upper-middle lobes in 2 and intermediate bronchus in 1. Wedge resections were performed in the upper lobes in 2. Fourteen reconstructions were performed. We ordinarily sutured the trachea and bronchus in any case, using a single outside knot. There was no leakage at the anastomosis. There were 2 hospital deaths. There were 4 cancer deaths, including 2 local recurrences. There were 4 patients demonstrating stenosis post operatively. There were 3 stenoses among 4 preoperative radiation therapies. We considered that radiation therapy disturbed the repair of the anastomosis. There were 8 pneumonia patients who developed post operatively. There were 2 operative hospital deaths among 3 angio-bronchoplasties without coverage. Recently, we have routinely covered the anastomosis at the reconstruction site and have not experienced any major complications.
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MURINE GPVI ANTIBODY DOES NOT INDUCE GPVI-DEPLETION BUT REDUCES IN VIVO THROMBOSIS WITH MINIMAL BLEEDING RISK IN RATS. J Thromb Haemost 2007. [DOI: 10.1111/j.1538-7836.2007.tb02182.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Abstract
Although cholesterol crystal embolism can present with diffuse visceral involvement, lung lesions do not occur unless there is left to right circulatory shunting. Pulmonary atheroembolism was confirmed by histology in an elderly male with recent end-stage renal failure (ESRF) due to atheroembolic renal disease, who presented with massive hemoptysis and intractable respiratory failure. At autopsy, atheromatous degeneration of the aorta was observed and acute cholesterol emboli found in the kidneys, spleen, liver, stomach and lung. Cholesterol clefts were seen in pulmonary arterioles, and ischemic alveolar damage was present. The pulmonary arteries had no atheromatous changes. Intrapulmonary, intracardiac, and aortocaval shunting were not present. Pulmonary atheroembolism arising from a dialysis fistula has not been previously reported.
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The balance of VEGF-C and VEGFR-3 mRNA is a predictor of lymph node metastasis in non-small cell lung cancer. Br J Cancer 2006; 95:75-9. [PMID: 16755294 PMCID: PMC2360489 DOI: 10.1038/sj.bjc.6603209] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
A positive association between vascular endothelial growth factor-C (VEGF-C) expression and lymph node metastasis has been reported in several cancers. However, the relationship of VEGF-C and lymph node metastasis in some cancers, including non-small cell lung cancer (NSCLC), is controversial. We evaluated the VEGF-C and vascular endothelial growth factor receptor-3 (VEGFR-3) expression in NSCLC samples from patients who had undergone surgery between 1998 and 2002 using real-time quantitative RT–PCR and immunohistochemical staining. We failed to find a positive association between VEGF-C and VEGFR-3 mRNA expression and lymph node metastasis in NSCLC. An immunohistological study demonstrated that VEGF-C was expressed not only in cancer cells, but also in macrophages in NSCLC, and that VEGFR-3 was expressed in cancer cells, macrophages, type II pneumocytes and lymph vessels. The VEGF-C/VEGFR-3 ratio of the node-positive group was significantly higher than that of the node-negative group. Immunohistochemical staining showed that VEGFR-3 was mainly expressed in cancer cells. The immunoreactivity of VEGF-C and VEGFR-3 was roughly correlated to the mRNA levels of VEGF-C and VEGFR-3 in real-time PCR. VEGF-C mRNA alone has no positive association with lymph node metastasis in NSCLC. The VEGF-C/VEGFR-3 ratio was positively associated with lymph node metastasis in NSCLC. This suggests that VEGF-C promotes lymph node metastasis while being influenced by the strength of the VEGF-C autocrine loop, and the VEGF-C/VEGFR-3 ratio can be a useful predictor of lymph node metastasis in NSCLC.
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[Clinical analysis of operative and hospital deaths in primary lung cancer]. KYOBU GEKA. THE JAPANESE JOURNAL OF THORACIC SURGERY 2006; 59:347-52; discussion 352-4. [PMID: 16715882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
In our department, there were 313 thoracic surgeries for primary lung cancer from January 1994 to December 2003. We clinically reviewed for the operative and hospital death (n=18, 5.8%). The patients were 16 males and 2 females (70.6 +/- 5.6 years old). The surgical procedures were 4 pneumonectomies, 13 lobectomies (3 bronchoplasties) and 1 partial resection. The mean interval until postoperative death was 122.5 +/- 156.1 days. There were 5 direct operative deaths within 30 days (1.6%). There were 4 cancer deaths, 2 hemoptyses, 2 operative bleeding, 2 thromboses, 2 cerebral hemorrhages, 1 pyothorax, 1 pneumonia, 1 respiratory failure, 1 multiple organ failure after chemotherapy and 2 unexplained deaths. The patients with pneumonectomy or aged significantly had high mortality. For postoperative complications such as hemoptysis or bleeding, perioperative management that takes these issues into consideration is needed. Furthermore, we must carefully review the preoperative evaluation and combined treatment, because there were many cancer deaths among cases showing early recurrence and metastasis.
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Abstract
AIM Accurate assessment of the remaining area of periodontal attachment assists in determining the prognosis of a tooth. The aim of this study was to determine formulae to estimate the remaining area of periodontal attachment from attachment-level measures. MATERIALS AND METHODS Roots of 30 extracted teeth of each tooth type were coated with vinyl acetate solution and alpha-cyanoacrylate monomer to produce a membrane. The membrane was removed after guidelines were drawn to simulate various attachment levels. The root surface area on the apical side of each simulated attachment level was measured using image analysis software. The net or percent root surface area and corresponding attachment level data were fitted to a linear, quadratic, cubic, and exponential functions and a growth curve. RESULTS The linear function provided the most appropriate fit for the data. For net root surface area, a steeper slope was evident for tooth types with a larger mean total root surface area. For percent root surface area, a steeper slope was evident for tooth types with a shorter root length. CONCLUSIONS A linear function provides the most appropriate formula for estimation of the remaining area of periodontal attachment based on the attachment-level measurement.
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P-171 Fluoroscopy-assisted thoracoscopic resection of pulmonarynodules after computed tomography-guided bronchoscopic metallic coil marking using virtual bronchoscopy navigation. Lung Cancer 2005. [DOI: 10.1016/s0169-5002(05)80665-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Interferon-gamma is produced by CD8 T cells in response to HLA-A24-restricted hepatitis C virus epitopes after sustained virus loss. Clin Exp Immunol 2005; 141:81-8. [PMID: 15958073 PMCID: PMC1809409 DOI: 10.1111/j.1365-2249.2005.02018.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/21/2005] [Indexed: 11/29/2022] Open
Abstract
Differences in cytotoxic T lymphocyte activity in hepatitis C virus infection may account for the outcome of interferon monotherapy. To investigate this hypothesis, we analysed the response of peripheral CD8(+) T cells that recognized epitopes presented by HLA-A*2402. We synthesized HLA/beta2-microglobulin/peptide complexes using two epitopes. Production of interferon-gamma by CD8(+) T cells in response to plastic-bound monomeric HLA/peptide complex was observed frequently in sustained virus responders (SVR) (n = 13) against all the peptides, NS31296-1304 (the percentage of responding patients, 61.5%) and core 129-137 (53.8%), while no interferon-gamma production was observed in non-responders (NR) (n = 13) for any of the peptides. Tetramer-staining showed the presence of CD8(+) T cells specific for all the peptides except NS31296-1304 in two SVR at the end of interferon monotherapy, although hardly any such cells were found in four NR. Specific killing was observed against peptides NS31296-1304 (3/4) and core 129-137 (1/4) in sustained responders but none in non-responders. These results suggest that the responses of cytotoxic T lymphocytes (CTLs) were induced during interferon therapy in these patients and that interferon-gamma production by CD8(+) T lymphocytes against HCV NS31296-1304 and core 129-137 are well maintained in patients with SVR compared with those with NR. These findings emphasize the importance of the CD8(+) T cell response in controlling HCV infection.
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Cytokines/chemokines and adhesion molecules in local inflammatory responses of the lung. ACTA ACUST UNITED AC 2005; 11:611-9. [PMID: 15616630 DOI: 10.1358/dnp.1998.11.10.659706] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
It is well accepted that local inflammatory responses are regulated by dynamic reactions among a variety of inflammatory cells. Most of the cells derived from bone marrow and hematopoietic cytokines play an important role in the maturation processes. Proinflammatory cytokines such as interleukin-1 (IL-1), tumor necrosis factor-alpha (TNF-alpha) and IL-6 are also important in the induction of inflammatory responses. Recent progress in research, furthermore, has elucidated the critical role of chemokines and adhesion molecules in the recruitment and activation of the inflammatory cells in the lung. This article will focus on their roles in the pathogenesis of airway inflammatory disorders such as asthma.
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Evidence from mucin core protein expression that some Paget's disease on areola can be of extramammary-like histogenesis and part of multisite disease. Br J Dermatol 2004; 151:688-92. [PMID: 15377360 DOI: 10.1111/j.1365-2133.2004.06087.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Triple extramammary Paget's disease, which consists ordinarily of bilateral axillary and genital lesions, is uncommon. Triple extramammary Paget's disease involving other sites has never been reported, although solitary extramammary Paget's disease can occur at various sites around the body. Erythematous plaques on the areola, axilla and genitalia of a 91-year-old man were surgically removed under the clinical diagnosis of multiple extramammary Paget's disease. Histology revealed that all three lesions consisted of intraepidermal nests of Paget cells and other isolated Paget cells scattered in the epidermis. Although adnexal invasion was observed in the genital lesion, neither intraductal invasion nor underlying breast carcinoma was detected in the areolar lesion. Immunohistochemically, the Paget cells in all lesions expressed simple epithelial cytokeratins (CK8, 18 and 19), mucin (MUC)1 and MUC5AC, but neither CK20 nor MUC2. From the histological findings, the present case was interpreted as triple extramammary Paget's disease rather than synchronous mammary and extramammary Paget's disease. Furthermore, the mucin core protein expression pattern, which was identical to that observed in extramammary Paget's disease, supported the above interpretation.
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Software integration for monitoring systems with high flexibility. PROGRESS IN NUCLEAR ENERGY 2003. [DOI: 10.1016/s0149-1970(03)00052-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Abstract
Fibroblasts play an important role in the repair and remodelling processes following injury. Prostaglandin D2 (PGD2) is a potent mediator in inflammatory processes. In this study, the effect of the PGD2 on human foetal lung fibroblasts (HFL-1) chemotaxis induced by human plasma fibronectin (HFn) was investigated using the blindwell chamber technique. PGD2 inhibited HFL-1 chemotaxis to HFn (20 microg x mL(-1)) by 20.8 +/- 3.8% (p<0.05). Checkerboard analysis of HFn-directed migration confirmed that PGD2 inhibited both chemotaxis and chemokinesis. The effect of PGD2 was concentration-dependent and the inhibitory effect diminished with time. The PGD2 receptor (DP) agonist BW245C (500 nM) had a similar effect, inhibiting chemotaxis to 39.4 +/- 6.3%. The inhibitory effects of both PGD2 and BW245C on HFL-1 chemotaxis were blocked by the DP receptor antagonist AH6809 (2 microM). The inhibitory effect of PGD2 on fibroblast chemotaxis was also blocked by the cyclic adenosine monophosphate (cAMP)-dependent protein kinase (PKA) inhibitor, KT5720, suggesting a DP receptor-initiated, cAMP-dependent effect mediated by PKA. Prostaglandin D2 appears to inhibit fibroblast chemotaxis, perhaps by modulating the rate of fibroblast migration. Such an effect may contribute to regulation of the wound healing response following injury in asthma patients.
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Potentiation of human lung fibroblast chemotaxis by the thromboxane A(2) analog U-46619. THE JOURNAL OF LABORATORY AND CLINICAL MEDICINE 2002; 139:43-9. [PMID: 11873244 DOI: 10.1067/mlc.2002.120540] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Fibroblast production of extracellular matrix is crucial not only for normal tissue development and maintenance of tissue structure but also for the repair and remodeling processes after injury. Thromboxane A(2) (TXA(2)) is a potent mediator in inflammatory processes. The aim of this study was to investigate the effect of TXA(2) on chemotaxis of human fetal lung (HFL-1) fibroblasts induced by human plasma fibronectin or platelet-derived growth factor BB (PDGF-BB). By using the blindwell chamber technique, the TXA(2) agonist U-46619 alone had no chemotactic activity. However, U-46619 (200 nmol/L) stimulated HFL-1 fibroblast chemotaxis to human plasma fibronectin (20 microg/mL; 161.8% +/- 13.4%; P <.005) and to PDGF-BB (10 ng/mL; 188.5% +/- 7.0%; P <.005). Checkerboard analysis of human plasma fibronectin-directed migration confirmed that the TXA(2) agonist increased both chemotaxis and chemokinesis. The stimulatory effect of the TXA(2) agonist was concentration dependent and increased with time. Another agent known for stimulating the protein kinase C pathway, phorbol 12-myristate 13-acetate (10(-8) mol/L), had a similar effect, stimulating chemotaxis to fibronectin (146.2% +/- 8.6%). The stimulatory effect of the TXA(2) agonist on HFL-1 fibroblast chemotaxis was inhibited by the synthetic thromboxane receptor antagonist SQ29,548 (10(-5) mol/L) and the protein kinase C inhibitor calphostin (10(-7) mol/L). In summary, TXA(2) appears to stimulate fibroblast chemotaxis to fibronectin and PDGF, perhaps by modulating the rate of fibroblast migration. Such an effect may contribute to regulation of wound healing and the development of fibrotic disorders.
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Abstract
BACKGROUND The human ABO blood group system is important in transfusion and organ transplantation. Although the molecular basis of the ABO gene has been established, recent studies have begun to characterize the mechanism of the ABO gene expression. MATERIALS AND METHODS Transient transfection assays were carried out in human erythroleukaemia HEL cells and human gastric cancer KATOIII cells. Electrophoretic mobility shift assays were performed using nuclear extracts derived from both cells. RESULTS Our characterization of the 5'-upstream sequence of the ABO genes indicated that the region between -117 and +31 is essential to direct expression of a reporter gene in erythroid cells. We show that a sequence located between positions -22 and -14 of the ABO promoter binds a ubiquitous transcription factor Sp1 or Sp1-like protein(s). Mutation of this site abrogates binding of those factors and reduces the ability of the ABO promoter to function in erythroleukaemia cells and gastric cancer cells. CONCLUSION The expression of the ABO promoter appears to be influenced by the binding of Sp1 or Sp1-like protein(s) in both erythroid and epithelial cell lineages.
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[The concept of severe osteoporosis]. CLINICAL CALCIUM 2001; 11:1539-1543. [PMID: 15775462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
In diagnostic criteria of primary osteoporosis in Japan, there is no expression of severe osteoporosis. In the primary osteoporosis, the criteria of WHO is difficult to use in our daily medical care. In 1992, we opened "The osteoporosis dock" in the department of osteopaedics of National Nishisaitama Chuo Hospital. From experience of our osteoporosis dock, we tried to answer the question with "what is the concept of severe osteoporosis?".
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[Effects of 14-membered ring macrolide on transcription factors in human bronchial epithelial cells]. THE JAPANESE JOURNAL OF ANTIBIOTICS 2001; 54 Suppl C:43-5. [PMID: 12575415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/20/2023]
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[New clinical laboratory tests for respiratory tract diseases]. NIHON NAIKA GAKKAI ZASSHI. THE JOURNAL OF THE JAPANESE SOCIETY OF INTERNAL MEDICINE 2001; 90:2200-5. [PMID: 11769516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
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Verruciform xanthoma. Report of a case with molecular biological analysis of HPV and immunohistochemical analysis of cytokeratin expression. Clin Exp Dermatol 2001; 26:730-1. [PMID: 11722468 DOI: 10.1046/j.1365-2230.2001.00926-5.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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[The role of renal vasodepressor and natriuretic systems and ouabain-like factor on the early phase of hypertension in two-kidney, one-clip hypertensive rats]. NIHON JINZO GAKKAI SHI 2001; 43:631-8. [PMID: 11808073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
Recent studies have shown that not only an enhanced renin-angiotensin system, but also relative volume retention might contribute to hypertension even in the early phase of a two-kidney, one-clip hypertensive model. To evaluate the role of renal depressor and natriuretic systems in the development of high blood pressure in the early phase of this model, we measured urinary excretion of kallikrein(uKAL), prostaglandin E2(uPGE2), and dopamine(uDA) in male Sprague-Dawley rats instrumented with a 0.2 mm diameter clip on the left renal artery(2K1C) and compared the results with those of sham-operated rats(sham). We also measured ouabain-like factor(OLF) in the plasma(pOLF) and urine(uOLF) in both groups. In 2K1C, systolic blood pressure(SBP) progressively increased and plasma renin activity was higher than the sham in the 3rd week. UDA and uPGE2 were not different between these groups, but uKAL attenuated in 2K1C in the 1st and 3rd week compared to the sham. There was a negative correlation between %delta SBP and %delta uKAL. On the other hand, uOLF increased in 2K1C in the 1st, 2nd and 3rd week compared to the sham. There was a positive correlation between SBP and uOLF. And pOLF was higher in 2K1C than in the sham. Furthermore there was a negative correlation between %delta uKAL and %delta uOLF. These results indicated that even in the early phase, suppression of the renal kallikrein-kinin system would contribute to high blood pressure in part, and OLF might play a compensatory role against the impaired natriuretic system in the kidney. However, OLF might contribute to blood pressure elevation through vasoconstriction in 2K1C.
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Abstract
Engagement of MHC class I-specific inhibitory receptors regulates natural killer (NK) cell development and function. Using both new and previously characterized anti-Ly49 monoclonal antibodies, we comprehensively determined expression and co-expression frequencies of four Ly49 receptors by NK cells from MHC-congenic, MHC class I-deficient, and Ly49A-transgenic mice to study mechanisms that shape the inhibitory Ly49 repertoire. All Ly49 receptors were expressed on partially overlapping subsets. Significantly, in the absence of class I MHC, several receptor pairs were co-expressed more frequently than predicted from a purely random expression model, indicating that biases independent of MHC class I underlie receptor co-expression in some cases. MHC interactions were found to inhibit Ly49 co-expression variably depending on the MHC allele and the receptor pair examined. These data extend previous evidence that interactions with MHC shape the repertoire. It was previously proposed that developing NK cells express Ly49 receptors sequentially and cumulatively, until self-MHC specific receptors are expressed and inhibit new receptor expression. Fulfilling a major prediction of this model, we found that class I recognition by a Ly49A transgene expressed by all developing NK cells equivalently inhibited expression of endogenous self-specific and nonself-specific Ly49 receptors.
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39
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A family with liddle's syndrome caused by a mutation in the beta subunit of the epithelial sodium channel. Clin Exp Hypertens 2001; 23:471-8. [PMID: 11478429 DOI: 10.1081/ceh-100104238] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Liddle's syndrome is a rare form of autosomal-dominant salt-sensitive hypertension. Constitutive activation of the amiloride-sensitive distal renal epithelial sodium channel (ENaC) is essential for salt-sensitive hypertension. Recently, several DNA analysis studies have indicated that there is a mutation of C-terminus of either the beta or y subunit. We sequenced the C-termini of the beta and -gamma subunits of the ENaC in a Japanese family with hypertension and hypopotassemia without excess minerarocorticoids, clinically diagnosed as Liddle's syndrome. The mutation of the ENaC of this family was beta R564X. Since such case seem to be rare in the literature, detailed data are shown in this report.
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Increased expression of transforming growth factor-beta1 in small airway epithelium from tobacco smokers and patients with chronic obstructive pulmonary disease (COPD). Am J Respir Crit Care Med 2001; 163:1476-83. [PMID: 11371421 DOI: 10.1164/ajrccm.163.6.9908135] [Citation(s) in RCA: 259] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Tobacco smoke is believed to cause small airway disease and then chronic obstructive pulmonary disease (COPD), but the molecular mechanisms by which small airway obstruction occurs remain unknown. To study the gene expression levels of transforming growth factor (TGF)-beta1, a potent fibrogenic factor, in small airway epithelium from smokers and patients with COPD, we harvested highly pure samples of epithelial cells from small airways under direct vision by using an ultrathin bronchofiberscope BF-2.7T (outer diameter 2.7 mm with a biopsy channel of 0.8 mm in diameter). The expression levels of TGF-beta1 were evaluated by reverse transcription-polymerase chain reaction (RT-PCR). The mRNA levels of TGF-beta1 corrected by beta-actin transcripts were significantly higher in the smoking group and patients with COPD than those in nonsmokers (p < 0.01). Furthermore, among smokers and patients with COPD, TGF-beta1 mRNA levels correlated positively with the extent of smoking history (pack-years) and the degree of small airway obstruction as assessed by measurements of flow-volume curves. Immunocytochemistry of the cells demonstrated more intense stainings for TGF-beta1 in samples from smokers and patients with COPD than from nonsmokers. Spontaneously released immunoreactive TGF-beta1 levels from cultured epithelial cells were more elevated in subjects with a history of smoking and patients with COPD than in nonsmokers. Our study showed a close link between smoking and expression of TGF-beta1 in small airways. Our results also suggested that small airway epithelial cells might be involved in obstructive changes found in smokers and patients with COPD.
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GENDER DIFFERENCE IN THE RELATIONSHIPS AMONG HYPERLEPTINEMIA, HYPERINSULINEMIA, AND HYPERTENSION. Clin Exp Hypertens 2001; 23:357-68. [PMID: 11349826 DOI: 10.1081/ceh-100102673] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Studies reveals that plasma leptin levels (LEP) in females are higher than those in males, and that LEP in hypertensive subjects are higher than those in BMI-matched normotensive subjects. To investigate the relationships among LEP, blood pressure (BP) and insulin sensitivity, we studied these relationships in 133 Japanese males and 263 females. LEP were positively correlated with BP, body mass index, body fat mass (FM) and homeostasis model assessment (HOMA). Regression analysis in which age and FM were adjusted showed LEP were associated with BP and HOMA. Even with adjustment by age, FM and HOMA, LEP were still positively correlated BP in males. LEP in insulin-resistant hypertensives was significantly higher than those in insulin-sensitive hypertensives, in insulin-sensitive normotensives and in insulin-resistant normotensives in males. However, in females, a significantly higher LEP was observed in insulin-resistant subjects than in insulin-sensitive subjects regardless of hypertension. These data suggest that it would be sexual difference in the relationships among hyperleptinemia, hyperinsulinemia and hypertension.
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42
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Benzene-extracted components are important for the major activity of diesel exhaust particles: effect on interleukin-8 gene expression in human bronchial epithelial cells. Am J Respir Cell Mol Biol 2001; 24:419-26. [PMID: 11306435 DOI: 10.1165/ajrcmb.24.4.4085] [Citation(s) in RCA: 73] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Epidemiologic and experimental studies suggest that diesel exhaust particles (DEPs) may be related to increasing respiratory mortality and morbidity. We have shown that DEPs augmented the production of inflammatory cytokines by human airway epithelial cells in vitro. To better understand the mechanisms of their proinflammatory activities, we studied the effects of several components extracted from DEPs on interleukin (IL)-8 expression in human bronchial epithelial cell line BEAS-2B and normal human airway epithelial cells obtained from very peripheral airways by an ultrathin bronchoscope. We used several agents active on signal transduction pathways in cytokine expression, such as the protein kinase C inhibitor staurosporin, antioxidant agents including N-acetyl cysteine (NAC) and pyrrolidine dithiocarbamate (PDTC), and p38 mitogen-activated protein kinase (MAPK) inhibitor SB203580. Benzene-extracted components showed effects mimicking DEPs on IL-8 gene expression, release of several cytokines (IL-8; granulocyte macrophage colony-stimulating factor; and regulated on activation, normal T cells expressed and secreted) and nuclear factor (NF)-kappa B activation. We also found that NAC, PDTC, and SB203580 suppressed the activities of DEPs and their benzene extracts, suggesting the roles of oxidants-mediated NF-kappa B activation and p38MAPK pathways. Finally, benzo[a]pyrene, one of the important compounds included in the benzene component, replicated the activities shown by DEPs.
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Abstract
This article describes regional differences in the homicide patterns which occurred in Sapporo City and the surrounding area, and in Akita, Ibaraki, Chiba and Toyama prefectures in Japan. Information collected from each case of homicide included factors such as age, sex of the victim and assailant, causes of death, disposition of the offender, relationship between assailant and victim, reasons for criminal action, et al. The statistical features of homicidal episodes among the five different regions showed considerable variation, as follows. The mean death rates for homicide (number of victims per 100,000 of population) during the period 1986-1995 were 0.44 (Sapporo), 0.8 (Akita), 0.58 (Toyama), 0.7 (Ibaraki) and 0.75 (Chiba), respectively. Close family relationship between the victim and assailant was observed in the homicidal acts which occurred in Sapporo, Akita and Toyama. Assailant's relationship to victim was commonly extra-familial in Ibaraki and Chiba-neighboring megalopolis Tokyo, where some events of murder by a foreigner occurred. Homicide by female assailant, murder by mentally abnormal killers and homicide-suicide events were closely associated with family members. And these factors contributed to the considerable number of victims in Sapporo, Akita and Toyama. But, this close family relationship of the victim to the assailant did not correspond with the elevation in the number of deaths, and it was rather inversely related to the higher death rates recognized in Ibaraki and Chiba. This comparative study suggested that rapid urbanization considerably affects regional differences in homicide patterns.
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Intervention of thymus and activation-regulated chemokine attenuates the development of allergic airway inflammation and hyperresponsiveness in mice. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2001; 166:2055-62. [PMID: 11160256 DOI: 10.4049/jimmunol.166.3.2055] [Citation(s) in RCA: 206] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Thymus- and activation-regulated chemokine (TARC; CCL17) is a lymphocyte-directed CC chemokine that specifically chemoattracts CC chemokine receptor 4-positive (CCR4(+)) Th2 cells. To establish the pathophysiological roles of TARC in vivo, we investigated here whether an mAb against TARC could inhibit the induction of asthmatic reaction in mice elicited by OVA. TARC was constitutively expressed in the lung and was up-regulated in allergic inflammation. The specific Ab against TARC attenuated OVA-induced airway eosinophilia and diminished the degree of airway hyperresponsiveness with a concomitant decrease in Th2 cytokine levels. Our results for the first time indicate that TARC is a pivotal chemokine for the development of Th2-dominated experimental allergen-induced asthma with eosinophilia and AHR. This study also represents the first success in controlling Th2 cytokine production in vivo by targeting a chemokine.
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45
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[Effects of various erythromycin derivatives on activation of transcription factors in airway epithelial cells]. THE JAPANESE JOURNAL OF ANTIBIOTICS 2001; 54 Suppl A:96-8. [PMID: 11439910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/20/2023]
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46
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Abstract
A series of cephalosporins bearing a 5,5-fused ring system, an (imidazo[5,1-b]thiazolium-6-yl)methyl group, at the C-3 position were synthesized and evaluated for in vitro antibacterial activities. CP6679 (1s) and its analogues showed potent antibacterial activities against gram-positive and gram-negative bacteria, including Pseudomonas aeruginosa. They were also highly active against methicillin-resistant Staphylococcus aureus (MRSA). CP6679 (1s) showed more potent antibacterial activity than ceftazidime (CAZ) or cefpirome (CPR) against Pseudomonas aeruginosa and MRSA.
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47
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Adult-to-adult living-related liver transplantation for hepatitis B-related cirrhosis in Japan: two case reports. Transplant Proc 2000; 32:2189-92. [PMID: 11120127 DOI: 10.1016/s0041-1345(00)01629-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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48
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Acute cerebellar hemorrhage in a patient with Klinefelter syndrome: XXY karyotype obtained postmortem from cells from pericardial fluid. J Forensic Sci 2000; 45:1148-50. [PMID: 11005194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Abstract
A case of Klinefelter syndrome and a spontaneous cerebellar hemorrhage in a 12-year-old boy is presented. Autopsy revealed that the hemorrhage was due to the rupture of a dilated artery in an arteriovenous malformation in the right cerebellar hemisphere. The small, undescended testes exhibited partial atrophy of the seminiferous tubules. Postmortem chromosome analysis of cells from the pericardial fluid demonstrated a 47, XXY karyotype. He had previous surgical treatment for bilateral thumb polydactyly and patent ductus arteriosus. In juvenile cases of sudden death with overlapping morphological dysgenesis, postmortem karyotyping may provide important diagnostic information.
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49
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Nuclear factor-kappa b activation in silica-induced interleukin 8 production by human bronchial epithelial cells. Cytokine 2000; 12:1257-60. [PMID: 10930308 DOI: 10.1006/cyto.2000.0704] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Recent studies indicate that interleukin 8 (IL-8) plays an important role in interstitial lung diseases including silica-induced lung inflammation. To investigate the regulation of IL-8 expression and production in human bronchial epithelial cells, we examined the effects of silica on NF-kappaB activation. Human bronchial epithelial cell line BET-1A was cultured with hormonally defined Ham's F12 medium. The administration of silica induced IL-8 production in BET-1A dose-dependently and time-dependently. Northern blot analysis demonstrated that silica upregulated IL-8 expression in BET-1A. Moreover, electrophoretic mobility shift assays revealed that NF-kappaB activation occurred in the presence of silica, which was inhibited by antioxidants such as N-acetylcysteine (NAC). These data suggest that reactive oxygen species may be involved in the activation of NF-kappaB induced by silica.
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50
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Clonal acquisition of inhibitory Ly49 receptors on developing NK cells is successively restricted and regulated by stromal class I MHC. Immunity 2000; 13:143-53. [PMID: 10933402 DOI: 10.1016/s1074-7613(00)00015-7] [Citation(s) in RCA: 103] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We report an in vitro stroma-dependent system for the clonal growth and differentiation of natural killer (NK) cells from lymphoid-restricted bone marrow progenitors or bone marrow NK1.1+ cells. Strikingly, the potential to initiate expression of specific Ly49 receptors becomes increasingly restricted as NK cells develop. Moreover, when NK cells express a Ly49 receptor specific for stromal cell class I MHC, they are less likely to initiate expression of another Ly49 receptor in the clonal culture system. The results indicate multiple roles for stromal cells in NK cell development, in supporting clonal growth, in initiation of Ly49 receptor expression, and in formation of the NK cell receptor repertoire.
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MESH Headings
- Animals
- Antigens
- Antigens, Ly/genetics
- Antigens, Ly/metabolism
- Antigens, Surface
- Cell Differentiation
- Cells, Cultured
- Histocompatibility Antigens Class I/metabolism
- Killer Cells, Natural/cytology
- Killer Cells, Natural/immunology
- Killer Cells, Natural/metabolism
- Lectins, C-Type
- Membrane Glycoproteins/genetics
- Membrane Glycoproteins/metabolism
- Membrane Proteins/analysis
- Mice
- Mice, Inbred C57BL
- Mice, Knockout
- Mice, Transgenic
- NK Cell Lectin-Like Receptor Subfamily B
- Proteins
- Proto-Oncogene Proteins c-kit/analysis
- Receptors, Immunologic/biosynthesis
- Receptors, Immunologic/genetics
- Receptors, Immunologic/metabolism
- Receptors, NK Cell Lectin-Like
- Time Factors
- beta 2-Microglobulin/genetics
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