Abstract:
:The complement component C5a is a potent inflammatory peptide, which may be involved in the pathogenesis of Chronic Obstructive Pulmonary Disease (COPD). We analysed the induced sputum and plasma of 28 patients with stable COPD, 12 healthy smokers and 7 non-smokers. In 13 of the patients with COPD, we also observed paired samples during acute exacerbation. The concentrations of C5a/C5a desArg and C3a/C3a desArg were measured using cytometric bead array. Both C5a and C3a concentrations in induced sputum of stable patients with COPD were significantly increased compared to the control groups of healthy smokers and non-smokers. In addition, there was a significant elevation in C5a values in exacerbation of COPD that was independent from the airway C3a levels. Airway C5a levels were negatively correlated with forced expiratory volume in first second (FEV1)% predicted and diffusing capacity of the lung (TLCO). Plasma C5a concentrations in patients with COPD were significantly higher than in healthy smokers, but no further significant systemic C5a elevation was detected with acute exacerbation of COPD. There was no important difference in local or systemic C5a concentrations between healthy smokers and non-smokers. These in vivo results clearly show that local and systemic C5a concentrations in COPD are elevated, and that the local, in contrast to systemic, C5a concentrations additionally increase in the acute exacerbation of COPD. It seems that the cigarette smoke is not related to C5a increase. The elevated local and systemic C5a levels, and additional individual local C5a increase during the exacerbation support the importance of C5a in COPD.
journal_name
Scand J Immunoljournal_title
Scandinavian journal of immunologyauthors
Marc MM,Kristan SS,Rozman A,Kern I,Flezar M,Kosnik M,Korosec Pdoi
10.1111/j.1365-3083.2010.02385.xsubject
Has Abstractpub_date
2010-05-01 00:00:00pages
386-91issue
5eissn
0300-9475issn
1365-3083pii
SJI2385journal_volume
71pub_type
杂志文章abstract::The binding of 125I-labelled bovine serum albumin (BSA)-anti-BSA immune complexes (IC) to Raji cells and polymorphonuclear (PMN) cells in vitro was studied. The IC were reacted for 1 h at 37 degrees C with normal human serum (NHS) diluted 1:2 in the presence or absence of human erythrocytes (E) before presentation for...
journal_title:Scandinavian journal of immunology
pub_type: 杂志文章
doi:10.1111/j.1365-3083.1987.tb02276.x
更新日期:1987-10-01 00:00:00
abstract::Oral vaccination with the combined B subunit/whole cell cholera vaccine generates antitoxin memory cells that could be isolated from peripheral blood for at least 1 year after immunization. These memory cells were triggered by antigen in vitro to produce antitoxin in the presence of autologous T cells and monocytes. A...
journal_title:Scandinavian journal of immunology
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doi:10.1111/j.1365-3083.1987.tb02253.x
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journal_title:Scandinavian journal of immunology
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更新日期:1996-10-01 00:00:00
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journal_title:Scandinavian journal of immunology
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journal_title:Scandinavian journal of immunology
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journal_title:Scandinavian journal of immunology
pub_type: 杂志文章
doi:10.1111/j.1365-3083.1986.tb02005.x
更新日期:1986-06-01 00:00:00
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journal_title:Scandinavian journal of immunology
pub_type: 杂志文章
doi:10.1111/j.1365-3083.1986.tb03073.x
更新日期:1986-04-01 00:00:00
abstract::To study the location and mechanism of apoptosis within the human tuberculosis (TB) and leprosy lesions, parallel sections were analyzed for mycobacterial antigens (M.Ag), Fas ligand (FasL), Fas, CD68 and Mac387 by immunohistochemistry, and apoptotic cells by the terminal deoxynucleotidyl-transferase-mediated dUTP-dig...
journal_title:Scandinavian journal of immunology
pub_type: 杂志文章
doi:10.1046/j.1365-3083.2001.01020.x
更新日期:2001-12-01 00:00:00
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journal_title:Scandinavian journal of immunology
pub_type: 杂志文章
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更新日期:2008-02-01 00:00:00
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journal_title:Scandinavian journal of immunology
pub_type: 杂志文章
doi:10.1111/j.1365-3083.1983.tb00760.x
更新日期:1983-01-01 00:00:00
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journal_title:Scandinavian journal of immunology
pub_type: 杂志文章,评审
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更新日期:2007-08-01 00:00:00
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journal_title:Scandinavian journal of immunology
pub_type: 杂志文章
doi:10.1111/j.1365-3083.1977.tb00391.x
更新日期:1977-01-01 00:00:00
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journal_title:Scandinavian journal of immunology
pub_type: 杂志文章
doi:10.1111/j.1365-3083.1986.tb01973.x
更新日期:1986-03-01 00:00:00
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journal_title:Scandinavian journal of immunology
pub_type: 杂志文章
doi:10.1111/j.1365-3083.1985.tb01436.x
更新日期:1985-04-01 00:00:00
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pub_type: 杂志文章
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更新日期:2008-10-01 00:00:00
abstract::Mononuclear cells (MNC) eluted from rheumatoid synovial tissue of 16 patients with rheumatoid arthritis were examined for immunoglobulin-secreting cells (ISC). Immediately after elution and separation synovial tissue MNC contained considerable numbers of ISC. IgG and IgA ISC were more abundant than IgM ISC. At the sam...
journal_title:Scandinavian journal of immunology
pub_type: 杂志文章
doi:10.1111/j.1365-3083.1982.tb00741.x
更新日期:1982-11-01 00:00:00
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journal_title:Scandinavian journal of immunology
pub_type: 杂志文章
doi:10.1046/j.1365-3083.1996.d01-28.x
更新日期:1996-02-01 00:00:00
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journal_title:Scandinavian journal of immunology
pub_type: 杂志文章
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journal_title:Scandinavian journal of immunology
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journal_title:Scandinavian journal of immunology
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journal_title:Scandinavian journal of immunology
pub_type: 杂志文章
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journal_title:Scandinavian journal of immunology
pub_type: 杂志文章
doi:10.1111/j.1365-3083.1991.tb02537.x
更新日期:1991-06-01 00:00:00
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journal_title:Scandinavian journal of immunology
pub_type: 杂志文章
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更新日期:1978-01-01 00:00:00
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pub_type: 杂志文章
doi:10.1111/j.1365-3083.1985.tb01850.x
更新日期:1985-06-01 00:00:00
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journal_title:Scandinavian journal of immunology
pub_type: 杂志文章
doi:10.1111/j.1365-3083.1992.tb03101.x
更新日期:1992-08-01 00:00:00
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journal_title:Scandinavian journal of immunology
pub_type: 杂志文章
doi:10.1046/j.1365-3083.2002.01173.x
更新日期:2002-12-01 00:00:00
abstract::To investigate autologous antigen recognition, we developed two autoreactive CD4+ T-cell clones, A2 and A10, maintained with non-T cells and IL-2. Autologous non-T-cell stimulation of the T-cell clones resulted in a decrease in cell surface expression of CD4, whereas the expression of CD2, CD3, and WT31 was unchanged....
journal_title:Scandinavian journal of immunology
pub_type: 杂志文章
doi:10.1111/j.1365-3083.1991.tb03744.x
更新日期:1991-02-01 00:00:00
abstract::The activation of complement and the release of TNF-alpha, IL-6 and IL-8 are important pathogenic factors behind organ dysfunction in sepsis. The aim of this study was to determine whether infusion of anti-TNF antibodies alters complement activation and plasma concentrations of pro-inflammatory cytokines at high doses...
journal_title:Scandinavian journal of immunology
pub_type: 杂志文章
doi:10.1046/j.1365-3083.1998.00433.x
更新日期:1998-11-01 00:00:00