Abstract:
:Biologically significant levels of IL-2 activity were produced by isolated lamina propria mononuclear cells (LPMC) from normal intestine (n = 12), cancer-bearing colons (n = 35) and inflammatory bowel disease (IBD) affected tissue (n = 12). The levels of IL-2 produced were similar for all three sources of LPMC (normal 252 +/- 48 U/ml, IBD-affected mucosa 197 +/- 42 U/ml and colon cancer 285 +/- 43 U/ml). These levels were significantly greater than those produced by peripheral blood mononuclear cells (20 +/- 5 U/ml, P less than 0.01) on a per cell basis. In mucosa from cancer-bearing colons the amount of IL-2 produced by LPMC was unaffected by the invasiveness of the colon cancer. LPMC IL-2 production was markedly suppressed by drugs used in IBD therapy. 5-Aminosalicylic acid (5-ASA) reduced activity in a dose-dependent fashion. At a dose equivalent to the faecal therapeutic level of 0.5 mg/ml activity, IL-2 production by LPMC was suppressed to 3.4% of controls. Similarly, exposure of LPMC to cyclosporin A (CyA) and hydrocortisone (HC) at therapeutic levels reduced IL-2 activity to less than 1% of controls. The major producers of IL-2 activity were shown to be CD3+ T lymphocytes and those bearing the activation markers IL-2R and TFR. Suppression of mucosal IL-2 production represents an important therapeutic mechanism of drugs used in the management of IBD including HC, 5-ASA and CyA. These results suggest that mucosal T cells produce appreciable levels of IL-2 activity that may be important in maintaining immune homeostasis in the normal intestine, provide anti-neoplastic cytotoxic activity and contribute to the inflammatory events that characterize the mucosal lesions of IBD.
journal_name
Clin Exp Immunoljournal_title
Clinical and experimental immunologyauthors
Pullman WE,Doe WFdoi
10.1111/j.1365-2249.1992.tb03052.xsubject
Has Abstractpub_date
1992-04-01 00:00:00pages
132-7issue
1eissn
0009-9104issn
1365-2249journal_volume
88pub_type
杂志文章abstract::During HIV-1 infection, the current tenet is that only anti-gag antibodies decline, while those directed at env remain stable. Among the latter antibodies, those directed to the V3 domain of gp120 are assumed to play a role in the immune surveillance against HIV-1. We investigated the correlation between anti-V3 antib...
journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:10.1111/j.1365-2249.1995.tb05567.x
更新日期:1995-03-01 00:00:00
abstract::In both murine and human experimental systems, acute, low dose exposure of skin to ultraviolet B light (UVB) impairs the induction of allergic contact dermatitis (ACD) by haptens such as dinitrochlorobenzene (DNCB) in a significant proportion of individuals. By light microscopy, epidermal Langerhans cells (LC) have be...
journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:10.1111/j.1365-2249.1993.tb03426.x
更新日期:1993-06-01 00:00:00
abstract::Using an experimental contact sensitivity model in guinea-pigs, evidence is presented that hapten (DNCB or oxazolone) specific T lymphocytes may persist for several months in previous sites of inflammation. Immunological memory, revealed by accelerated contact skin reactions upon retesting with the hapten, was limited...
journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:
更新日期:1983-01-01 00:00:00
abstract::Previous studies using isolated complement proteins have shown that more C4A than C4B binds to certain types of immune complexes. However, the in vivo binding of the C4 isoforms to an immune complex has not been investigated in detail and may differ from events when measured with the isolated proteins. We report here ...
journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:10.1046/j.1365-2249.1999.00940.x
更新日期:1999-07-01 00:00:00
abstract::Autoantigens in canine autoimmune haemolytic anaemia (AIHA) were identified by immunoprecipitation using autoantibody eluted from the erythrocytes of affected dogs. At least three patterns of precipitated antigen were identified in six cases of AIHA. The most commonly precipitated antigen pattern was a combination of ...
journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:10.1111/j.1365-2249.1991.tb05678.x
更新日期:1991-07-01 00:00:00
abstract::Thyroid peroxidase purified from porcine thyroid (pTPO) was found to induce an experimental murine thyroiditis with genetic restriction which was very different from that induced by mouse thyroglobulin (mTg). C57BL/6 and C57BL/10 (both H-2b) were good responders for thyroiditis, whereas A/J (H-2a), BALB/c (H-2d), DBA/...
journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:10.1111/j.1365-2249.1990.tb06434.x
更新日期:1990-04-01 00:00:00
abstract::Disseminated infection with virulent Mycobacterium avium in C57Bl/6 (B6) mice leads to severe lymphocyte depletion in secondary lymphoid organs. In this study, we found an up-regulation of caspase-8 activity in spleen cell extracts from M. avium 25291-infected B6 mice compared to non-infected mice. The activation of t...
journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:10.1111/j.1365-2249.2011.04385.x
更新日期:2011-06-01 00:00:00
abstract::The anti-lymphocyte autoantibody response to irradiated lethal Plasmodium berghei malaria parasites in normal mice was significantly reduced when recipients were pre-treated with splenic T cells from mice recovered from a non-lethal Plasmodium yoelii infection. Suppression was specific for the autoantibody and did not...
journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:
更新日期:1983-10-01 00:00:00
abstract::We have examined the prevalence of circulating immune complexes in sera from patients with mycobacterial infections. Sera from 68 percent of patients with active M. tuberculosis and 58 percent of patients with M. intracellulare infections had significantly elevated Clq binding activity (Clq-BA). In general there was a...
journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:
更新日期:1980-03-01 00:00:00
abstract::The alpha 7 nicotinic receptor is reportedly a key element in the cholinergic anti-inflammatory pathway. Because a prototypical ligand for this receptor is nicotine, we studied the in vivo human response to bacterial endotoxin or lipopolysaccharide (LPS) in the context of nicotine or placebo pretreatment. Twelve adult...
journal_title:Clinical and experimental immunology
pub_type: 杂志文章,随机对照试验
doi:10.1111/j.1365-2249.2006.03248.x
更新日期:2007-01-01 00:00:00
abstract::CD44 is an adhesion molecule involved in a wide range of cell-cell and cell-matrix interactions. The standard form of CD44 (CD44S) is a 85-90-kD glycoprotein, but alternative splicing of RNA encoding 10 variable exons (V1-V10) can give rise to many different CD44 variant protein isoforms of higher molecular weight. CD...
journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:10.1046/j.1365-2249.2000.01313.x
更新日期:2000-09-01 00:00:00
abstract::Psoriasis is an immune-mediated inflammatory skin disease that mainly affects the skin barrier. Treatment for psoriasis mainly includes conventional immunosuppressive drugs. However, long-term treatment with global immunosuppressive agents may cause a variety of side effects, including nephrotoxicity and infections. K...
journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:10.1111/cei.13363
更新日期:2019-12-01 00:00:00
abstract::Enterotoxin produced by enterotoxigenic Bacteroides fragilis (BFT) has been associated with mucosal inflammation and diarrhoeal diseases. In this study, the anti-inflammatory molecular mechanism of 5,7-dihydroxy-3,4,6-trimethoxyflavone (eupatilin) was characterized in an HT-29 intestinal epithelial cell line stimulate...
journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:10.1111/j.1365-2249.2008.03849.x
更新日期:2009-03-01 00:00:00
abstract::Enterohaemorrhagic Escherichia coli (EHEC) O157:H7 infections are considered a public health problem in both developed and developing countries because of their increasing incidence and the severity of clinical presentation. Approximately 10% of infected patients develop complications such as haemolytic uraemic syndro...
journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:10.1111/j.1365-2249.2008.03698.x
更新日期:2008-08-01 00:00:00
abstract::Serum from 98 Thai adults infected with Plasmodium falciparum were examined for the presence of autoantibodies. Malarial containing antibodies sera were also revealed positive for anti-nuclear antibodies with fluorescence speckled pattern, anti-smooth muscle antibodies, anti-mitochondria antibodies and rheumatoid fact...
journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:
更新日期:1984-10-01 00:00:00
abstract::Systemic lupus erythematosus (SLE) is a systemic autoimmune disease associated with aberrant activation of T and B lymphocytes for the production of inflammatory cytokines and autoreactive antibodies. Animal studies of SLE have indicated that Toll-like receptors (TLR) are important in the pathogenesis of murine lupus....
journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:10.1111/j.1365-2249.2009.04036.x
更新日期:2010-01-01 00:00:00
abstract::Antigen-antibody complexes, composed of 125I-BSA and guinea-pig or rabbit antibody, were incubated at 37 degrees C with human blood cells suspended in autologous serum and kinetics of binding analysed. When purified polymorphonuclear (PMN) or mononuclear cells (MNC) were studied, maximum binding was observed within 8 ...
journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:
更新日期:1982-06-01 00:00:00
abstract::To investigate the binding properties of dendritic cells (DC) to vascular endothelium, a comparative analysis was undertaken of DC, monocytes and lymphocytes isolated from the blood of 25 healthy subjects using monolayers of human umbilical vein endothelial cells as the adherence substrate. More blood DC (mean 24% adh...
journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:10.1046/j.1365-2249.1997.d01-951.x
更新日期:1997-03-01 00:00:00
abstract::T cells are thought to play an important regulatory role in atopic asthma. We hypothesized that human blood and BAL T cell subsets bearing various TCR-Vbeta genes might show selective differences in their cytokine profile. Peripheral blood (PB) and bronchoalveolar lavage (BAL) T cells from seven atopic asthmatic and s...
journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:10.1046/j.1365-2249.2002.01847.x
更新日期:2002-05-01 00:00:00
abstract::Thymic biopsies taken under general anaesthetic prior to partial thyroidectomy for non-toxic nodular goitre were studied with histometric techniques: evidence is presented that the tissue studied is representative of the normal adult human thymus. The pattern of age involution of the normal adult thymus is described: ...
journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:
更新日期:1975-02-01 00:00:00
abstract::Neutrophil phagocytosis and killing of Candida albicans were examined using a radiometric assay in 25 patients with insulin-dependent diabetes and 17 controls under various in vitro metabolic conditions. Glucose was present at 5, 10 and 50 mM, beta-hydroxybutyrate at 1, 5 and 20 mM and glucose with beta-hydroxybutyrat...
journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:
更新日期:1986-02-01 00:00:00
abstract::A major goal in organ transplantation has been to safely exploit the natural processes of immune tolerance in order to minimize the dose and duration of drug immunosuppression. In this commentary, I argue that we can learn from how tumours avoid rejection, to evolve a three-stage tolerance-inducing strategy for transp...
journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:10.1111/cei.12933
更新日期:2017-08-01 00:00:00
abstract::Superantigens (SAgs) are potent stimulators of T cells bearing specific Vbeta T cell receptors (TCR) and may play a role in the pathogenesis of Kawasaki syndrome (KS), although despite 15 years of intense study this area remains controversial. Because SAgs can cause Vbeta restricted T cell activation in the absence of...
journal_title:Clinical and experimental immunology
pub_type: 杂志文章,多中心研究
doi:10.1111/j.1365-2249.2007.03567.x
更新日期:2008-02-01 00:00:00
abstract::Bronchoalveolar washings (BAW) were obtained from rats primarily infected with N. brasiliensis during the early infection stage that coincides with the lung passage of the parasite and the recruitment of inflammatory cells. BAW were tested for IL-1, IL-6 and tumour necrosis factor (TNF) activities. We found that IL-1 ...
journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:10.1111/j.1365-2249.1992.tb03071.x
更新日期:1992-05-01 00:00:00
abstract::The aim of the present study was to elucidate the impact of liver transplantation (LTX) on myeloid dendritic cell (MDC) homeostasis. We observed a threefold reduction of circulating CD1c(+) MDC immediately after LTX (n = 16; P < 0.01), and normalization between 3 and 12 months after LTX. This decline was not due to re...
journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:10.1111/j.1365-2249.2007.03449.x
更新日期:2007-09-01 00:00:00
abstract::The number of NK T cells was measured in relation to the Th1/Th2 imbalance observed in RA. Peripheral blood samples of patients with RA (n = 60) and healthy controls (n = 36) were stained with anti-NK receptor 1A (anti-NKR-P1A), anti-CD56, and anti-CD3 MoAbs, and examined by three-colour flow cytometry. NK T (NKR-P1A+...
journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:10.1046/j.1365-2249.1999.01018.x
更新日期:1999-10-01 00:00:00
abstract::Psoriasis (Ps), psoriatic arthritis (PsA) and rheumatoid arthritis (RA) are common diseases dependent on environmental factors that activate the immune system in unknown ways. Mannan is a group of polysaccharides common in the environment; they are potentially pathogenic, because at least some of them induce Ps-, PsA-...
journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:10.1111/cei.13268
更新日期:2019-06-01 00:00:00
abstract::The serum levels of TGF-beta1, measured by solid-phase ELISA, were determined to be significantly augmented in patients with both relapsing remitting (RR) and secondary chronic progressive (CP) MS compared with sex- and age-matched healthy controls. Moreover, in RR MS patients, the blood levels of the cytokine were fu...
journal_title:Clinical and experimental immunology
pub_type: 临床试验,杂志文章
doi:10.1046/j.1365-2249.1998.00604.x
更新日期:1998-07-01 00:00:00
abstract::Three B cell hybridomas were produced by the fusion of spleen cells from a 5 month old MRL/Mp-lpr/lpr mouse with the myeloma cell line, NS-1. By competitive inhibition, all three monoclonal antibodies (MoAb) were specific for poly(rA) and were inhibited to a lesser extent by dDNA, nDNA, poly(rI) and poly(rC). Moreover...
journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:
更新日期:1985-07-01 00:00:00
abstract::The lymphocyte activating properties of a membrane proteoglycan (MPG) extracted from a mutant non-encapsulated strain of Klebsiella pneumoniae (Kp) (biotype a I-145) were investigated. Kp MPG induced a strong proliferative response of BALB/c spleen cells and Peyer's patches cells. Thymidine incorporation was dose-rela...
journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:
更新日期:1987-10-01 00:00:00