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Association of T2/S-RNase With Self-Incompatibility of Japanese Citrus Accessions Examined by Transcriptomic, Phylogenetic, and Genetic Approaches. FRONTIERS IN PLANT SCIENCE 2021; 12:638321. [PMID: 33643366 PMCID: PMC7909312 DOI: 10.3389/fpls.2021.638321] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/06/2020] [Accepted: 01/18/2021] [Indexed: 06/12/2023]
Abstract
Several citrus varieties show gametophytic self-incompatibility (GSI), which can contribute to seedless fruit production in several cultivars. This study investigated the genes regulating this trait through RNA-seq performed using styles collected from the flowers of Japanese citrus cultivars 'Hyuganatsu,' 'Tosabuntan,' 'Hassaku,' 'Banpeiyu,' and 'Sweet Spring'. We screened the transcripts of putative T2 RNases, i.e., the protein family including all S-RNases from S-RNase-based GSI plants, and constructed a phylogenetic tree using the screened T2 RNases and S-RNases retrieved from citrus genome databases and a public database. Three major clusters (class I-III) were formed, among which, the class III cluster contained family specific subclusters formed by S-RNase and a citrus-specific cluster monophyletic to the S-RNase clusters. From the citrus class III cluster, six transcripts were consistent with the S haplotypes previously determined in Japanese citrus accessions, sharing characteristics such as isoelectric point, extracellular localization, molecular weight, intron number and position, and tissue-specific expression with S-RNases. One T2 RNase gene in self-incompatible Hyuganatsu was significantly down-regulated in the styles of a self-compatible mutant of Hyuganatsu in RNA-seq and qPCR analyses. In addition, the inheritance pattern of some T2 RNase genes was consistent with the pattern of the S haplotype in the progeny population of Hyuganatsu and Tosabuntan. As all results supported citrus self-incompatibility being based on S-RNase, we believe that six T2 RNase genes were S-RNases. The homology comparison between the six T2 RNases and S-RNases recently reported in Chinese citrus revealed that three out of six T2 RNases were identical to S-RNases from Chinese citrus. Thus, the other three T2 RNases were finally concluded to be novel citrus S-RNases involved in self-incompatibility.
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High Heart Rate and Pulmonary Vascular Resistance Predict Poor Prognosis after Referral for Lung Transplantation in Patients with Pulmonary Arterial Hypertension. J Heart Lung Transplant 2019. [DOI: 10.1016/j.healun.2019.01.1243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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PROGNOSTIC FACTORS FOR PATIENTS WITH SEVERE PULMONARY ARTERIAL PULMONARY HYPERTENSION DIAGNOSED AS REQUIRING LUNG TRANSPLANTATION. Chest 2019. [DOI: 10.1016/j.chest.2019.02.313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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P3.16-43 Is Sublobar Resection for Stage I Invasive Adenocarcinoma (≤2-cm) Feasible? J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.1950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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MA19.05 Difference of Tumor Mutational Burden Is Associated with Distinct Immune Microenviroment in the T Cell-Inflamed Lung Adenocarcinoma. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.477] [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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P1.16-45 Thoracoscopic Stapler-Based Complex Segmentectomy Assisted by Virtual Assisted Lung Mapping. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.1014] [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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Role of Toll-like Receptor 4 Expressed by Fibroblasts in Allograft Fibrosis in Mouse Orthotopic Tracheal Transplantation. Transplant Proc 2018; 50:3863-3872. [PMID: 30577279 DOI: 10.1016/j.transproceed.2018.06.023] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Revised: 05/25/2018] [Accepted: 06/21/2018] [Indexed: 12/16/2022]
Abstract
Development of chronic lung allograft dysfunction involves various alloimmune-independent insults including those mediated by Toll-like receptor (TLR) signaling, which is known to activate alloimmune responses. We hypothesized that TLR signaling may also contribute to the activation of fibroblasts and promoting allograft airway fibrosis. Mouse orthotopic tracheal transplants were conducted between major histocompatibility complex (MHC)-mismatched Balb/c donor and wild-type C3H or C3H-derived TLR4 mutant recipients (nonfunctional TLR4). Immunohistochemistry on day 21 showed significantly smaller alpha-smooth muscle actin (α-SMA)-positive areas in TLR4 mutant recipients than wild-type recipients (P = .01). No difference was found for CD3+ T-cell infiltration. Proliferation of alloreactive T cells derived from the recipient spleen showed no difference between TLR4 mutant and wild-type recipients in a mixed lymphocyte reaction. The effect of TLR4 signaling was examined in primary pulmonary fibroblast cultures both with lipopolysaccharide (LPS) and transforming growth factor (TGF)-β1. Stimulation with LPS significantly increased expression of α-SMA mRNA in wild-type fibroblasts cultured with TGF-β1 compared with the control without LPS (P = .001). Taken together, these findings suggest disruption of TLR signaling leads to reduced activation of fibroblasts without affecting T-cell infiltration and proliferation in this model. TLR4-mediated activation of fibroblasts may be a potentially important mechanism of allograft remodeling.
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P1.07-017 Assessment of Cancer Immunity Status in Each Patient Using Immunogram. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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P-153PROGNOSTIC IMPACT ON LUNG CANCER SURGERY IN OCTOGENARIANS: A JAPANESE MULTICENTRE RETROSPECTIVE ANALYSIS. Interact Cardiovasc Thorac Surg 2017. [DOI: 10.1093/icvts/ivx280.153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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P-185IS SUBLOBAR RESECTION FOR STAGE I INVASIVE ADENOCARCINOMA (≤2 CM) WITH SOLID HISTOLOGICAL SUBTYPE ENOUGH FOR CURE? Interact Cardiovasc Thorac Surg 2017. [DOI: 10.1093/icvts/ivx280.185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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O-026PROGNOSTIC IMPLICATION OF MICROSCOPIC VESSEL INVASION AND ITS RELATION WITH T-SIZE CATEGORIES OF 8TH UICC CLASSIFICATION IN NON-SMALL CELL LUNG CANCER. Interact Cardiovasc Thorac Surg 2016. [DOI: 10.1093/icvts/ivw260.26] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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F-049PREOPERATIVE PERIPHERAL BLOOD NEUTROPHIL-TO-LYMPHOCYTE RATIO IS AN INDEPENDENT PREDICTOR OF SURVIVAL IN PATIENTS WITH THYMIC EPITHELIAL TUMOUR UNDERGOING SURGERY. Interact Cardiovasc Thorac Surg 2016. [DOI: 10.1093/icvts/ivw260.49] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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P-188THE ROLE OF SURGERY FOR COMBINED SMALL-CELL LUNG CARCINOMA: A SINGLE-CENTRE EXPERIENCE. Interact Cardiovasc Thorac Surg 2016. [DOI: 10.1093/icvts/ivw260.186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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F-075COMPARATIVE REVIEW OF SUBLOBAR RESECTION BEFORE AND AFTER VIRTUAL ASSISTED LUNG MAPPING INTRODUCTION IN A SINGLE INSTITUTION. Interact Cardiovasc Thorac Surg 2016. [DOI: 10.1093/icvts/ivw260.74] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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F-048PROGNOSTIC IMPACT OF TUMOUR-INFILTRATING CCR4+ LYMPHOCYTES IN PATHOLOGICAL T1 N0-2 M0 LUNG ADENOCARCINOMA. Interact Cardiovasc Thorac Surg 2015. [DOI: 10.1093/icvts/ivv204.48] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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F-073ROLE OF THE GLASGOW PROGNOSTIC SCORE AS A PROGNOSTIC INDICATOR FOR LUNG CANCER SURGERY. Interact Cardiovasc Thorac Surg 2015. [DOI: 10.1093/icvts/ivv204.73] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Development of an improved RT-LAMP assay for detection of currently circulating rubella viruses. J Virol Methods 2014; 207:73-7. [PMID: 24972365 DOI: 10.1016/j.jviromet.2014.06.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2014] [Revised: 06/12/2014] [Accepted: 06/17/2014] [Indexed: 10/25/2022]
Abstract
Rubella virus is the causative agent of rubella. The symptoms are usually mild, and characterized by a maculopapular rash and fever. However, rubella infection in pregnant women sometimes can result in the birth of infants with congenital rubella syndrome (CRS). Global efforts have been made to reduce and eliminate CRS. Although a reverse transcription-loop-mediated isothermal amplification (RT-LAMP) assay for detection of rubella virus has been reported, the primers contained several mismatched nucleotides with the genomes of currently circulating rubella virus strains. In the present study, a new RT-LAMP assay was established. The detection limit of this assay was 100-1000PFU/reaction of viruses for all rubella genotypes, except for genotype 2C, which is not commonly found in the current era. Therefore, the new RT-LAMP assay can successfully detect all current rubella virus genotypes, and does not require sophisticated devices like TaqMan real-time PCR systems. This assay should be a useful assay for laboratory diagnosis of rubella and CRS.
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F-117 * POSSIBLE MISINTERPRETATION OF OUTCOMES OF VIDEO-ASSISTED THORACOSCOPIC LUNG LOBECTOMY FOR TREATMENT OF EARLY STAGE NON-SMALL-CELL LUNG CANCER CAUSED BY CURRENT TNM CLASSIFICATION SYSTEM. Interact Cardiovasc Thorac Surg 2014. [DOI: 10.1093/icvts/ivu167.117] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Combined use of cyclodextrins and hydroxypropylmethylcellulose stearoxy ether (Sangelose®) for the preparation of orally disintegrating tablets of type-2 antidiabetes agent glimepiride. J INCL PHENOM MACRO 2014. [DOI: 10.1007/s10847-014-0386-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Origin of Fibroblasts in Rejected Airway: Experiment with Orthotopic Tracheal Allotransplantation Model Using Transgenic GFP Mice. J Heart Lung Transplant 2013. [DOI: 10.1016/j.healun.2013.01.260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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396 Water-Soluble Carbon Monoxide-Releasing Molecule Attenuates Allograft Airway Rejection. J Heart Lung Transplant 2012. [DOI: 10.1016/j.healun.2012.01.406] [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] Open
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1 One Year Survival and Functional Status of Patients from the Human Ex Vivo Lung Perfusion (HELP) Trial. J Heart Lung Transplant 2011. [DOI: 10.1016/j.healun.2011.01.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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338 Detection of Non-Acid Gastroesophageal Reflux in Post-Lung Transplant Patients by Combined 24-Hour pH and Multichannel Impedance Monitoring. J Heart Lung Transplant 2011. [DOI: 10.1016/j.healun.2011.01.345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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Enhancement of dissolution and bioavailability of flurbiprofen by low molecular weight chitosans. DIE PHARMAZIE 2010; 65:461-466. [PMID: 20662311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
The dissolution behavior and absorption of flurbiprofen (FP) following oral administration from:three types of chitosans (LM chitosans), with different molecular weights and degree of acetylation, have been studied in comparison with those of the drug alone. The solubility of FP increased with concentrations of LM chitosan, especially in the case of C-III, with the highest degree of deacetylation degree among the three chitosans. This indicates that amino groups of LM chitosan play an important role in its interaction with FP. Moreover, spectroscopic studies, including NMR data, indicate that the binding involves interactions between the carboxyl group of FP and the amino group of the chitosans. The dissolution rates of FP for a C-III kneaded mixture were enhanced with increasing amounts of C-III. The oral absorption of FP from a C-III kneaded mixture was improved to a significant extent, compared to FP alone. These results suggest that FP from LM chitosan kneaded mixture increases the dissolution rate and improves the bioavailability of the drug by the formation of a water-soluble complex.
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Clinical relevance of the detection of tumor cells in the bone marrow of patients before lung cancer surgery. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.10603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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159: Transcriptional Signatures in Donor Lungs before and after Transplantation: A Functional Pathway Analysis of Donation after Cardiac Death (DCD) vs. Donation after Brain Death (DBD). J Heart Lung Transplant 2010. [DOI: 10.1016/j.healun.2009.11.169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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227: Novel Observations of Differences in Lung Inflammatory Gene Expression Profiles between Donation after Cardiac Death vs. Donation after Brain Death: Inflammation-Specific Microarray Study. J Heart Lung Transplant 2010. [DOI: 10.1016/j.healun.2009.11.238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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MMP-dependent migration of extrapulmonary myofibroblast progenitors contributing to posttransplant airway fibrosis in the lung. Am J Transplant 2009; 9:1027-36. [PMID: 19422332 DOI: 10.1111/j.1600-6143.2009.02605.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Myofibroblasts play a central role in fibroproliferative airway remodeling in obliterative bronchiolitis (OB) after lung transplantation. The purpose of the study is to elucidate the mechanisms whereby matrix metalloproteinases (MMPs) contribute to myofibroblast-mediated allograft airway fibrosis. In an intrapulmonary tracheal transplant model of OB, broad-spectrum MMP inhibitors, SC080 and MMI270 reduced the number of myofibroblasts at day 28 without changing differentiation, proliferation or apoptosis of myofibroblasts or fibroblasts. Next, myofibroblasts in allograft airway fibrosis were demonstrated to be almost exclusively of extrapulmonary origin by analyzing RT1A(n) positive myofibroblasts in an animal model combining orthotopic lung transplantation (from Lewis (RT1A(l)) to F1 (Brown-Norway (RT1A(n)) x Lewis)) and intrapulmonary tracheal transplantation (from a Wister-Furth rat (RT1A(u)) into the transplanted Lewis-derived lung). Using peripheral blood mononuclear cells (PBMCs) that can differentiate into alpha-SMA positive myofibroblasts in vitro, we demonstrated their contribution to the myofibroblast population of allograft airway fibrosis in vivo using a fluorescence-labeling cell tracking system. Moreover, PBMC-derived fibroblast-like cells expressed high levels of MMP-9 and MMP-12 and their migration was inhibited by MMP inhibitors in a wound healing assay. In conclusion, MMP-dependent migration of PBMC-derived myofibroblast precursors is an important contributing mechanism to the development of allograft airway fibrosis.
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Impact of human donor lung gene expression profiles on survival after lung transplantation: a case-control study. Am J Transplant 2008; 8:2140-8. [PMID: 18727701 DOI: 10.1111/j.1600-6143.2008.02354.x] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Primary graft dysfunction (PGD) continues to be a major cause of early death after lung transplantation. Moreover, there remains a lack of accurate pretransplant molecular markers for predicting PGD. To identify distinctive donor lung gene expression signatures associated with PGD, we profiled human donor lungs using microarray technology prior to implantation. The genomic profiles of 10 donor lung samples from patients who subsequently developed clinically defined severe PGD were compared with 16 case-matched donor lung samples from those who had a favorable outcome without PGD (development set, n = 26). Selected PCR validated predictive genes were tested by quantitative reverse transcription-polymerase chain reaction in an independent test set (n = 81). Our microarray analyses of the development set identified four significantly upregulated genes (ATP11B, FGFR2, EGLN1 and MCPH1) in the PGD samples. These genes were also significantly upregulated in donor samples of the test set of patients with poor outcomes when compared to those of patients with good outcomes after lung transplantation. This type of biological donor lung assessment shows significant promise for development of a more accurate diagnostic strategy to assess donor lungs prior to implantation.
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Abstract
Obliterative bronchiolitis (OB) is thought to be a form of chronic allograft rejection. However, immunosuppressive therapy is not effective once fibrosis has developed. We hypothesize that disordered tissue remodeling is a mechanism for the pathogenesis of OB. We examined allograft airway fibrosis in an intrapulmonary tracheal transplant model of OB. Allograft airways were completely obliterated at day 21 by fibrotic tissue; however, tissue remodeling continued thereafter, as demonstrated by the change of collagen deposition density, shift from type I to type III collagen, shift from fibroblasts to myofibroblasts and shift of expression profiles and activities of matrix metalloproteinases (MMPs). We then used a broad-spectrum MMP inhibitor, SC080, to attempt to manipulate tissue remodeling. Administration of the MMP inhibitor from day 0 to day 28 reduced airway obliteration, without inhibiting T-cell activation. MMP inhibition from day 14 to day 28 showed similar effects on airway obliteration. MMP inhibition from day 21 to day 35 did not reverse the airway obliteration, but significantly reduced the collagen deposition, type III collagen and myofibroblasts in the lumen. We conclude that tissue remodeling plays a critical role in the development and maintenance of fibrosis after transplantation.
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Abstracts of presentations to the Annual Meetings of the Canadian Society of Colon and Rectal Surgeons Canadian Association of General Surgeons Canadian Association of Thoracic Surgeons: Canadian Surgery Forum, Toronto, Ont., September 6-9, 2007. Can J Surg 2007; 50:1-32. [PMID: 37353894 PMCID: PMC10390043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/25/2023] Open
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Impact of induction chemotherapy and adjuvant radiation therapy on outcome after extrapleural pneumonectomy for malignant pleural mesothelioma. J Clin Oncol 2007. [DOI: 10.1200/jco.2007.25.18_suppl.7708] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
7708 Background: Examine the results of tri-modality therapy for malignant pleural mesothelioma (MPM). Methods: Protocol consisted of induction cisplatin-based chemotherapy, followed by extrapleural pneumonectomy (EPP) and adjuvant hemithoracic radiation therapy (RT) to 54 Gy. Results: A total of 60 patients were suitable candidates for tri-modality therapy between 01/2001 and 01/2007. Induction chemotherapy was administered to 56 patients; 4 patients underwent EPP without induction chemotherapy because of patient refusal (n=2), previous chemotherapy (n=1) and sarcomatoid MPM (n=1). Chemotherapy included vinorelbine/cisplatin (n=26), pemetrexed/cisplatin (n=26) and gemcitabine/cisplatin (n=4). EPP was performed in 47 patients; 13 patients did not undergo EPP because of tumor progression during chemotherapy (n=2), extensive chest wall involvement at surgery (n=6), or involvement of mediastinal lymph nodes at mediastinoscopy (n=5). Three patients (6%) died within 30 days of surgery. Pathological stage was II (n=6), III (n=35), and IV (n=6). Adjuvant RT was administered postoperatively to 36 patients and is ongoing in 5 patients; 6 patients did not receive adjuvant RT because of fatigue (n=5) or previous RT (n=1), and 4 patients did not complete RT up to 54 Gy. Overall survival for the 23 patients who completed the tri-modality therapy was 37% at 3 years with a median survival of 15 months. Eleven of the 23 patients had recurrence after a median of 8 months (range, 2–13 months). Recurrences were locoregional (n=2), in contralateral chest (n=3), abdomen (n=3), contralateral chest and abdomen (n=2), or pericardium (n=1). Among patients undergoing EPP, disease-free survival was longer in patients undergoing adjuvant high dose hemithoracic RT (p=0.07), in epithelial tumors (p=0.03), and in early stage (p=0.07). Overall survival was influenced by histology (p=0.007) and stage (p=0.05), but not by adjuvant high dose hemithoracic RT (p=0.5). The type of chemotherapy had no impact on disease-free and overall survival. Conclusions: Aggressive tri-modality therapy is feasible in selected patient with MPM. Adjuvant high dose hemithoracic RT can improve disease free survival and achieve good local control. No significant financial relationships to disclose.
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64: Balanced matrix metalloproteinase inhibition: Refining a therapeutic strategy for developing/established fibrosis of airway obliteration. J Heart Lung Transplant 2007. [DOI: 10.1016/j.healun.2006.11.079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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548: Regression of established post-transplant allograft airway obliteration by targeting interaction of fibrosis and immune system. J Heart Lung Transplant 2007. [DOI: 10.1016/j.healun.2006.11.572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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122 Risk factors for major complications after extrapleural pneumonectomy. Lung Cancer 2006. [DOI: 10.1016/s0169-5002(07)70198-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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181 Impact of lymph node metastasis on outcome after extrapleural pneumonectomy for malignant pleural mesothelioma. Lung Cancer 2006. [DOI: 10.1016/s0169-5002(07)70257-x] [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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25 A novel murine mesothelioma model of malignant pleural effusion. Lung Cancer 2006. [DOI: 10.1016/s0169-5002(07)70101-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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166. J Heart Lung Transplant 2006. [DOI: 10.1016/j.healun.2005.11.173] [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] Open
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[Synchronous tumors consisted of bronchial carcinoid and adenocarcinoma of the lung]. KYOBU GEKA. THE JAPANESE JOURNAL OF THORACIC SURGERY 2002; 55:457-60. [PMID: 12058455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Abstract
We report a case of synchronous tumors consisted of bronchial carcinoid and adenocarcinoma of the lung. A 58-year-old female was referred to our hospital after screening, because an abnormal shadow was noted in the right lung on her computed tomography (CT) of the chest. CT scans showed a peripheral pulmonary mass in the right middle lobe and a nodule around the right lower lobe bronchus. The nodular lesion like swollen lymph node was diagnosed as bronchial carcinoid originated in B6 by bronchoscopy. The pulmonary mass was diagnosed as adenocarcinoma by using core needle biopsy during operation. Right middle and lower bilobectomy and mediastinal lymph node dissection were performed. Coincidence of a bronchial carcinoid and an adenocarcinoma of the same side of the lung is a rare occurrence.
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Abstract
PURPOSE Human serum albumin (HSA) was mildly oxidized by a metal-catalyzed oxidation system (MCO-HSA), chloramine-T (CT-HSA) or H2O2 (H2O2-HSA), and the effects of these treatments on the structural, drug-binding and esterase-like properties were studied. METHODS Protein conformation was examined by calorimetric, chromatographic, electrophoretic and spectroscopic techniques. Drug binding was studied by ultrafiltration method, and esterase-like activity was determined using p-nitrophenyl acetate as a substrate. RESULTS Far-UV and near-UV CD spectra indicated that significant structural changes had occured as the result of treatment with MCO-HSA and CT-HSA but not with H2O2-HSA. However, SDS-PAGE analysis does not provide precise information on gross conformational changes such as fragmentation, cross-linking and SDS-resistant polymerisation. The results of differential scanning calorimetry, the fluorescence of the hydrophobic probe 1,1-bis-4-anilino-naphthalene-5,5-sulfonic acid and the elution time from a hydrophobic HPLC column indicated that MCO-HSA and CT-HSA in particular, have a more open structure and a higher degree of exposure of hydrophobic areas than unoxidized HSA. In all cases, high-affinity binding of warfarin remained unchanged for all the oxidized HSAs. However, high-affinity binding of ketoprofen to CT-HSA and, especially, MCO-HSA was diminished. In addition, the esterase-like activity of these proteins were all decreased to the same low level. CONCLUSIONS Mild oxidation of HSA has no detectable effect on the binding of drugs to site I in subdomain IIA. In contrast, both the ligand binding property of site II and the esterase-like activity of oxidized HSAs are decreased, most probably due to conformational changes in subdomain IIIA.
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Physicochemical characterization of a new crystal form and improvements in the pharmaceutical properties of the poorly water-soluble antiosteoporosis drug 3,9-bis(N,N-dimethylcarbamoy-loxy)-5H-benzofuro[3,2-c]quinoline-6-one (KCA-098) by solid dispersion with hydroxypropylcellulose. Pharm Dev Technol 2001; 5:443-54. [PMID: 11109244 DOI: 10.1081/pdt-100102028] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The present study was undertaken to improve the oral absorption of KCA-098, an antiosteoporosis drug. In this study, the form 2 of KCA-098 was used as a desirable crystal form for pharmaceutical formation among three kinds of crystal forms, 1, 2, and 3. Solid dispersions of KCA-098 with hydroxypropylcellulose (HPC) or poly(vinylpyrrolidone) (PVP) were prepared by the solvent method. The physicopharmaceutical properties of the solid dispersions were characterized by powder x-ray diffraction, FTIR spectroscopy, and differential scanning calorimetry (DSC). The powder x-ray diffractograms suggest that KCA-098 in the HPC-SL solid dispersion existed in a partial crystalline state as a new crystal form that could be produced by recrystallization from the solvent. Dissolution from the solid dispersions was markedly enhanced in comparison with that of the drug alone. The dissolution enhancement was observed to be greater for the solid dispersion with HPC-SL than for that with PVP. The KCA-098/HPC-SL (1:2) solid dispersion capsule showed a 3.5-fold increase in the initial concentration and 2.5-fold increase in initial concentration of dissolved drug after 60 min, compared with the values for a physical mixture of KCA-098 (form 2)/lactose (1:2). The in vivo absorption of the drug was investigated after oral administration of KCA-098 or its solid dispersion. The area under the plasma concentration curve of KCA-098 after oral administration of the KCA-098/HPC-SL (1:2) solid dispersion capsule was three-fold greater than that for the drug itself.
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Abstract
Nitric oxide (NO) acts as a neurotransmitter and neuromodulator in the nervous system of many vertebrates and invertebrates. The effects of extracellularly applied sodium nitroprusside (SNP) and diethylamine NO (C(2)H(5))(2)N[N(O)NO]-Na(+) (DEA/NO), NO donors, on a glutamate (Glu)-induced K(+) current in identified Onchidium neurons were investigated using voltage clamp and pressure ejection techniques. Bath-applied SNP (10 microM) and DEA/NO (5-10 microM) reduced the Glu-induced K(+) current without affecting the resting membrane conductance and holding current. The Glu-induced K(+) current also was inhibited by the focal application of SNP to the neuron somata. The suppressing effects of NO donors were concentration-dependent and completely reversible. Pretreatment with hemoglobin (50 microM), a nitric oxide scavenger, and 1H-[1,2, 4]oxadiazolo[4,3-a]quinoxalin-1-one (ODQ; 1 microM), a specific inhibitor of NO-stimulated guanylate cyclase, decreased the SNP-induced inhibition of the Glu-induced current. Bath-applied 50 microM 3-isobutyl-1-methylxanthine (IBMX), a nonspecific phosphodiesterase inhibitor, or intracellular injection of 1 mM guanosine 3',5'-cyclic monophosphate (cGMP) inhibited the Glu-induced current, mimicking the effect of NO donors. These results demonstrate that SNP and DEA/NO inhibit the Glu-induced K(+) current and that the mechanism of NO inhibition of the Glu-induced current involves cGMP-dependent protein kinase.
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Abstract
The inhibition of rabbit heart carbonyl reductase (RHCR) by fatty acids was examined using 4-benzoylpyridine (4BP) as a substrate. The inhibitory potency of saturated fatty acids increased with elongation in the carbon chain from caprylic acid to myristic acid, but decreased with further elongation. Myristic acid with 14 carbon atoms most strongly inhibited RHCR. All of the unsaturated fatty acids tested strongly inhibited RHCR; the cis-isomers were more potent inhibitors than the corresponding trans-isomers. The methyl esters and alcohols, which lack a carboxyl group, derived from fatty acids did not exert a significant inhibitory effect on RHCR. These results indicate that the existence of a proper length of carbon chain, double bond(s), and a carboxyl group in a fatty acid molecule is important for RHCR inhibition. We also propose the possibility that myristic acid at low concentrations inhibits the reduction of 4BP by interacting with a binding site other than the coenzyme- and substrate-binding sites of RHCR.
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Abstract
The present study was undertaken to assess the effects of sodium nitroprusside (SNP) and diethylamine NO (C2H5)2N[N(O)NO]-Na+ (DEA/NO), NO donors, on an acetylcholine (ACh)-induced Cl- current in identified Onchidium neurons using voltage-clamp and pressure ejection techniques. Bath-applied SNP (10 microM) and DEA/NO (5-10 microM) reduced the ACh-induced Cl- current in the neurons without affecting the resting membrane conductance and holding current. The suppressing effect of NO donors were concentration-dependent and completely reversible. Pretreatment with 1H-[1,2,4]oxadiazolo-[4,3-a] quinoxalin-1-one (1 micro M), a specific inhibitor of NO-stimulated guanylate cyclase, and hemoglobin (50 micro M), a nitric oxide scavenger, decreased the SNP-induced inhibition of the ACh-induced current. Intracellular injection of guanosine 3',5'-cyclic monophosphate (cGMP) or bath-application of 3-isobutyl-1-methylxanthine (50 micro M), a non-specific phosphodiesterase inhibitor, inhibited the ACh-induced current, mimicking the effect of NO donors. These results suggest that SNP and DEA/NO inhibit the ACh-induced Cl- current and that this effect is mediated by an increase in intracellular cGMP.
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Tetrodotoxin-unaffected depolarization of frog muscles induced by the venom of jellyfish (Genus aurelia). THE JAPANESE JOURNAL OF PHYSIOLOGY 1988; 38:839-49. [PMID: 2907921 DOI: 10.2170/jjphysiol.38.839] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
In the isolated frog muscle, the proteinaceous venom extracted from jellyfish (genus Aurelia) produced 1) a complete and irreversible block of indirectly and directly elicited muscle twitch and 2) an irreversible depolarization of the muscle membrane. This venom-induced depolarization was effectively reversed or prevented by the substitution of choline for sodium in Ringer solution, but not by the introduction of tetrodotoxin (TTX), a sodium channel blocker. The mechanism of muscle membrane depolarization appears to involve probably an increase in membrane permeability to sodium ion as shown by the decrease in membrane resistance. These results suggest that the venom forms a pore which has sodium selectivity or activates a TTX-insensitive sodium channel which is different from the known sodium channel.
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A new sea urchin toxin and its effect on spontaneous transmitter release at frog neuromuscular junctions. THE JAPANESE JOURNAL OF PHYSIOLOGY 1984; 34:839-47. [PMID: 6099856 DOI: 10.2170/jjphysiol.34.839] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
The authors extracted a dialyzable substance from sea urchin (Diadematidae) collected in Fiji, and investigated its effect on the frequency of miniature endplate potentials (MEPPs) in the sartorius muscle of the frog. This substance was shown to be different from previously known biologically active substances in many respects. The increase of MEPP frequency by the application of toxin was significant and dose-dependent. The frequency began increasing immediately after application and returned to normal after washing. This increasing action of toxin on MEPP frequency was strengthened by increased calcium concentration, but even in Ca-depleted solution toxin action was significant. Toxin action in Ca-free Mg2+ solution was found to be just as remarkable as in Ca2+ solution, and was dependent on magnesium concentration. Toxin action was also found to depend significantly on sodium concentration. The toxin did not change membrane potential of the muscle appreciably. From these results, the depolarization of the nerve terminal was not considered to be the main effect of toxin on MEPP frequency. The increasing action of toxin on MEPP frequency was interpreted as being the result of increased permeability of the nerve terminal to both divalent cations and Na+.
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Contraction of the frog muscle in 4-aminopyridine by rapid cooling. THE JAPANESE JOURNAL OF PHYSIOLOGY 1981; 31:391-401. [PMID: 6975386 DOI: 10.2170/jjphysiol.31.391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
In the 4-aminopyridine (4AP) Ringer in which the concentration of 4AP is above 0.005 mM, the frog muscle contracted repetitively by rapid cooling. This contraction was named AP-RCC. It took more than 20 min for 4AP to show the fall effect on the AP-RCC. During the AP-RCC action potentials of the muscle membrane which synchronized with the repetitive contractions were observed. Tetrodotoxin abolished the AP-RCC. In muscle pretreated with 400 mM glycerol, no AP-RCC was obtained. During the AP-RCC no action potential of the nerve was seen. d-Tubocurarine abolished both the AP-RCC and the accompanying action potential of the muscle. Mn2+ and, to a lesser extent, Mg2+, inhibited both the AP-RCC and the twitch by indirect stimulation. The repetitive nerve stimulation which lasted long enough to exhaust acetylcholine at the nerve terminal abolished the AP-RCC. 4AP restored the contraction suppressed by dantrolene sodium. The AP-RCC was masked by caffeine rapid cooling contracture when the concentration of caffeine was high. From these results, the AP-RCC is considered to be generated by acetyl-choline release from the nerve terminal by the combined action of 4AP and depolarization during cooling.
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Permeability of the endplate membrane activated by acetylcholine to some organic cations. JOURNAL OF NEUROBIOLOGY 1977; 8:173-84. [PMID: 300788 DOI: 10.1002/neu.480080208] [Citation(s) in RCA: 40] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The ability of various organic cations to depolarize the ACh-activated endplate membrane in the absence of Na ions was examined on frog sartorius muscle by measuring the endplate potential on the muscle surface with the moving electrode technique. The ACh-activated endplate membrane was very permeable to ammonium and its methyl and hydroxy derivatives, and moderately permeable to guanidine derivatives and Tris (hydroxymethyl) aminomethane. The permeability of alkylol derivatives of ammonium diminished progressively with increase in molecular size. The present results suggested that the endplate ionic channels can be represented by a pore of about 6.4 A in diameter.
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[Proceedings: Effect of dimethyldiethanolammonium on the endplate]. NIHON SEIRIGAKU ZASSHI. JOURNAL OF THE PHYSIOLOGICAL SOCIETY OF JAPAN 1974; 36:337. [PMID: 4478458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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