Abstract:
:CD44 comprises a family of type I transmembrane glycoproteins that is expressed on a wide range of cells including those of epithelial, lymphoid and myeloid lineage. Although expression of CD44 in the small intestine is typically localised in the crypts of Lieberkuhn, we have reported the expression of CD44 on mature, intestinal villus epithelial cells during the development of small bowel allograft rejection. The mechanisms underlying CD44 up-regulation are unknown, although it may be influenced by localised cytokine production. This study used flow cytometry to assess the effects of recombinant IFN-gamma and TNF-alpha on CD44 expression and hyaluronan binding by the rat small intestinal epithelial cell lines, RIE and IEC 6. IFN-gamma upregulated CD44 expression on RIE (155% of unstimulated control) and IEC 6 (209% of unstimulated control) cells, whereas TNF-alpha had no effect. IFN-gamma had no qualitative effect on CD44, as binding of the ubiquitously expressed extracellular matrix polysaccharide hyaluronan was unchanged. RIE and IEC 6 cells expressed the 82 kDa and 130 kDa major isoforms of CD44, however cytokine stimulation did not affect the expression of these, nor did stimulation induce the expression of other variants. In summary, these findings demonstrate that CD44 expression by intestinal epithelial cells can be regulated by cytokines, yet their ability to bind hyaluronan and the isoform of the expressed CD44 remains unaltered. It appears that localised inflammatory conditions and cytokine production may modify epithelial cell expression of CD44, however the physiological role for such a response has yet to be elucidated.
journal_name
Immunol Investjournal_title
Immunological investigationsauthors
Reid SD,Pockley AGdoi
10.3109/08820130009060867subject
Has Abstractpub_date
2000-08-01 00:00:00pages
271-86issue
3eissn
0882-0139issn
1532-4311journal_volume
29pub_type
杂志文章abstract::Neutrophil chemotactic defects have been reported previously in patients with hyper-IgE syndrome. Bi-allelic mutations in dedicator of cytokinesis 8 (DOCK8) gene usually cause an autosomal recessive hyper-IgE syndrome phenotype. Data are lacking about expression of DOCK8 protein in neutrophils or the possible role of ...
journal_title:Immunological investigations
pub_type: 杂志文章
doi:10.1080/08820139.2019.1567533
更新日期:2019-05-01 00:00:00
abstract:BACKGROUND:Cancer immunotherapies have achieved much success and have become the forefront treatment of cancers previously associated with poor prognosis. However, a major challenge in cancer immunotherapies remains the heterogeneity of the immunoregulatory capacities of cancers, and not all patients of a given cancer ...
journal_title:Immunological investigations
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pub_type: 杂志文章,评审
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更新日期:2016-11-01 00:00:00
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journal_title:Immunological investigations
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doi:10.3109/08820138809055720
更新日期:1988-03-01 00:00:00
abstract::Rapid and accurate diagnosis of cytomegalovirus (CMV) infection is imperative with the advent of effective antiviral therapy (gangiclovir, foscarnet, CMV hyperimmune globin). Applications of conventional cell culture (CC), shell vial assay (SV), serological testing, antigenemia assay (AG) as well as molecular methods ...
journal_title:Immunological investigations
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abstract::Hematological disorders like Aplastic anemia are quite frequent in Pakistan. Human leukocyte antigen (HLA) system, have been implicated in the development of Aplastic anemia in various population-based studies, The aim of this study was to determine the role of the HLA Class I and Class II alleles in genetic susceptib...
journal_title:Immunological investigations
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doi:10.3109/08820130903271415
更新日期:2009-01-01 00:00:00
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journal_title:Immunological investigations
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doi:10.1080/08820139.2019.1710531
更新日期:2021-02-01 00:00:00
abstract::High altitude may be defined as elevations as low as 1500 meters to those as high as 8800 meters. Very few studies have been conducted so far at high altitude for the specific purpose of monitoring different immune parameters in humans. Military personnel and mountaineers may be required to perform in environmental ex...
journal_title:Immunological investigations
pub_type: 杂志文章,评审
doi:10.3109/08820131003681144
更新日期:2010-01-01 00:00:00
abstract::In a previous study, we noticed that some ascitic cells isolated from melanoma patients survive, proliferate, and differentiate into giant phagocytes after the other cells died. Similar phenomena were observed in the primary cultures of mouse lung and liver cells. In the present study, the effects of dying cells on ab...
journal_title:Immunological investigations
pub_type: 杂志文章,评审
doi:10.3109/08820139.2013.822388
更新日期:2013-01-01 00:00:00
abstract::The processing of antigenic peptides for presentation by MHC molecules to T cells, may depend upon the function of a second, consensus sequence in or near the T cell-presented epitope. One such processing-regulating sequence appears to be composed of amino acids Leu, Ile, Val, Phe, and Met recurring in a fashion to fo...
journal_title:Immunological investigations
pub_type: 杂志文章
doi:10.3109/08820139309066191
更新日期:1993-02-01 00:00:00
abstract::Anti-α-galactoside antibody (anti-Gal) from human plasma that bound to α-galactoside-bearing guar galactomannan gel and was eluted with specific sugar (affinity-purified anti-Gal ; APAG) invariably contained apo(a) and apo B subunits in a proportion close to that in plasma lipoprotein(a) [Lp(a)]. Since LDL does not co...
journal_title:Immunological investigations
pub_type: 杂志文章
doi:10.3109/08820139.2013.764316
更新日期:2013-01-01 00:00:00
abstract::The objectives were to determine the prevalence and clinical significance of anti-cyclic citrullinated peptide (anti-CCP) antibodies in patients with juvenile idiopathic arthritis (JIA). Anti-CCP antibodies were checked by ELISA in 68 children with JIA, 38 males and 30 females with mean age of 10.6 (+/-4.02) years and...
journal_title:Immunological investigations
pub_type: 杂志文章
doi:10.1080/08820130802438057
更新日期:2008-01-01 00:00:00
abstract::Although cancer immunotherapy, which is able to target specifically cancer cells without detrimental effects to normal cell functions, would serve as an ideal therapeutic modality, most of the randomized clinical trials of cancer immunotherapy have not demonstrated a meaningful survival benefit to cancer patients over...
journal_title:Immunological investigations
pub_type: 杂志文章,评审
doi:10.3109/08820139.2013.857352
更新日期:2014-01-01 00:00:00
abstract::Previous work had implicated T cells within the stimulating population as having a significant role in the MLR. We now report that depletion of T cells from the stimulators caused a reduction in proliferative response in mixed leukocyte reaction (MLR) by 50% or more. This response could be restored by adding T-enriche...
journal_title:Immunological investigations
pub_type: 杂志文章
doi:10.3109/08820138609042020
更新日期:1986-03-01 00:00:00
abstract::The transferrin receptor (TR), the HLA DR antigen (DR), and the antigen binding OKT10 (T10) are present on activated lymphocyte populations. The authors have studied their expression and that of antigens defined by eight commercial monoclonal antibodies on peripheral blood lymphocytes of 50 healthy hospital workers ag...
journal_title:Immunological investigations
pub_type: 杂志文章
doi:10.3109/08820138709087089
更新日期:1987-06-01 00:00:00
abstract::Adoptive immunotherapy is an attractive cancer treatment modality due to its capacity to target primary and metastatic lesions with large numbers of tumor-reactive, cytotoxic lymphocytes. The inability of fully armed lymphocytes to traffic into sites of tumor has been proposed as a causal factor for the minimal succes...
journal_title:Immunological investigations
pub_type: 杂志文章
doi:10.1080/08820130701712867
更新日期:2007-01-01 00:00:00
abstract::Electron microscopy (EM) is a valuable tool in diagnostic medicine, and in some cases, can be enhanced by immunological methods. A major medical application of EM, diagnostic virology, can frequently be augmented by employment of immunological reagents. Three immunoelectron microscopy (IEM) methods, aggregation, coati...
journal_title:Immunological investigations
pub_type: 杂志文章
doi:10.3109/08820139709048913
更新日期:1997-01-01 00:00:00
abstract::Background: Autism Spectrum Disorder (ASD) is a neurodevelopmental disorder caused by genetic, environmental and immunological factors. It is known that neural development processes are affected by immune functions. The aim of this study is to evaluate the relationship between cytokines IL6 and IL1B gene polymorphisms...
journal_title:Immunological investigations
pub_type: 杂志文章
doi:10.1080/08820139.2020.1870489
更新日期:2021-01-12 00:00:00
abstract::Functional defects of polymorphonuclear leukocytes can lead to clinical immunodeficiency. Understanding these conditions requires a knowledge of normal polymorph physiology and the means to analyse various aspects of polymorph function. Primary diseases of polymorph function are rare, whereas disorders secondary to ot...
journal_title:Immunological investigations
pub_type: 杂志文章,评审
doi:10.3109/08820138809055721
更新日期:1988-04-01 00:00:00
abstract::Monocyte chemoattractant protein 1 (MCP-1) plays an important role in the development of periodontitis. The purpose of this investigation was to evaluate association of the MCP-1 gene polymorphism with chronic periodontitis in patients with end-stage renal disease (ESRD). One hundred fifty ESRD patients with chronic ...
journal_title:Immunological investigations
pub_type: 杂志文章
doi:10.1080/08820139.2019.1702052
更新日期:2020-11-01 00:00:00
abstract::Peripheral blood lymphocytes of a patient with myasthenia gravis (MG) were fused to the non-secreting human lymphoblastoid line HuNSI to produce human x human hybridomas that secrete monoclonal antibodies (mAb) to acetylcholine receptor (AChR). Screening of hybridomas for antibody production involved an enzyme-linked ...
journal_title:Immunological investigations
pub_type: 杂志文章
doi:10.3109/08820138609052954
更新日期:1986-06-01 00:00:00
abstract::Antisera to the chemically synthesized trisaccharide, Gal beta 1-3(GlcNAc beta 1-6)GalNAc, and disaccharide, GlcNAc beta 1-6GalNAc, were developed using the diazophenyl bovine serum albumin derivatives. The binding specificity of the antisera were analyzed by enzyme immunoassays with structurally related, chemically s...
journal_title:Immunological investigations
pub_type: 杂志文章
doi:10.3109/08820139109082633
更新日期:1991-08-01 00:00:00
abstract::The role of ICAM-1 in contact activation of the bronchial epithelial cells is elucidated. Direct contact between epithelial cells and leukocytes is required to change transepithelial electrical resistance (TER) of the epithelium. Migration of human neutrophils across the layers of cultured human airway epithelial cell...
journal_title:Immunological investigations
pub_type: 杂志文章
doi:10.1080/08820130600745703
更新日期:2007-01-01 00:00:00
abstract::The complement system which is a critical mediator of innate immunity plays diverse roles in the neuropathogenesis of HIV-1 infection such as clearing HIV-1 and promoting productive HIV-1 replication. In the development of HIV-1 associated neurological disorders (HAND), there may be an imbalance between complement act...
journal_title:Immunological investigations
pub_type: 杂志文章
doi:10.1080/08820139.2017.1371891
更新日期:2017-11-01 00:00:00
abstract::Competitive binding to polystyrene-bound antigens showed that human rye Group I (rye I)-specific IgG recognize the same three distinct epitopes of rye I as three monoclonal antibodies directed against the same antigens. Anti-idiotypic antibodies against one of the monoclonal antibodies (290A-167) inhibit completely th...
journal_title:Immunological investigations
pub_type: 杂志文章
doi:10.3109/08820138609036364
更新日期:1986-12-01 00:00:00
abstract::A rapid, quantitative enzyme-linked immunosorbent assay (ELISA) for the immunodiagnosis of Chagas' disease is described. The ELISA was standardized with the Falcon assay screening test (F.A.S.T.) system using a purified Trypanosoma cruzi epimastigote fraction (PEF) obtained by ion exchange chromatography. The ELISA te...
journal_title:Immunological investigations
pub_type: 杂志文章
doi:10.3109/08820139809070892
更新日期:1998-01-01 00:00:00
abstract::Genome-wide association studies have led to the discovery of several susceptibility genes related to autoimmune thyroid diseases (AITDs). However, controversial results have been reported regarding the role of single-nucleotide polymorphism (SNP) of CD40 in the disease susceptibility. The objective of this study was t...
journal_title:Immunological investigations
pub_type: 杂志文章
doi:10.1080/08820139.2017.1319382
更新日期:2017-08-01 00:00:00
abstract::Electroeluted outer membrane proteins [(EOmp), (35-37 KDa, porins)] were highly immunogenic in New Zealand White rabbits. An ELISA peak titer of 51,200 to EOmp as compared to 6,400 for non-eluted outer membrane protein (Omp) was demonstrated. EOmp enhanced the antigenicity of Omp possibly due to epitopes which were ma...
journal_title:Immunological investigations
pub_type: 杂志文章
doi:10.3109/08820139409087802
更新日期:1994-04-01 00:00:00
abstract::Dendritic cells (DCs) are potent antigen-presenting cells that can be matured in vitro from immature dendritic cells (iDCs) in the presence of several biological agents such as cytokine cocktail, CD40L, TNF-a and antigen loading, which are necessary and achieved using various protocols, such as lipofection, passive pu...
journal_title:Immunological investigations
pub_type: 杂志文章
doi:10.3109/08820139.2012.757234
更新日期:2013-01-01 00:00:00
abstract::The loading of dendritic cells (DCs) with whole tumor cell lysates may circumvent the facts that few tumor-specific antigens have been identified in human solid tumors. The present study was designed to investigate whether ovarian cancer cells lysate-pulsed DCs activate T cell responses against autologous ovarian tumo...
journal_title:Immunological investigations
pub_type: 杂志文章
doi:10.1081/imm-100103689
更新日期:2001-02-01 00:00:00