Abstract：
:Heparin and two dextran sulphate preparations with a low or high average molecular mass (M(r) 5000 and 5 x 10(5), respectively) enhanced binding of radioactively labelled complement factor H to the complement protein C3b, coupled to Sepharose 4B, maximally 2.5-4-fold within a polyanion concn range of 12.5-400 micrograms/ml. Despite this, heparin or low molecular mass dextran sulphate had no effect on the activity of H as a cofactor of complement factor I, when C3b bound to Sepharose 4B was used as a substrate, and high molecular mass dextran sulphate inhibited. Heparin or low molecular mass dextran sulphate had also no effect on the decay-accelerating activity of factor H on the alternative pathway C3 convertase, C3b,Bb, and high molecular mass dextran sulphate inhibited this activity, too, regardless of whether Sepharose 4B or sheep erythrocytes were used as carriers of C3b,Bb. These results suggest strongly that fluid phase heparin or dextran sulphate do not inhibit activation of the alternative pathway of complement by augmenting functions of H.
journal_name
Mol Immunoljournal_title
Molecular immunologyauthors
Koistinen Vdoi
10.1016/0161-5890(93)90082-msubject
Has Abstractpub_date
1993-02-01 00:00:00pages
113-8issue
2eissn
0161-5890issn
1872-9142journal_volume
30pub_type
杂志文章abstract：:In addition to the antigen receptor, resting T cells express a number of receptors that can be stimulated to generate proliferative signals. These "accessory" receptors require co-expression of the T cell receptor (TCR), suggesting that they channel their signals via secondary activation of the signal transduction fun...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/0161-5890(94)00160-3
更新日期：1995-04-01 00:00:00
abstract：:Human promyelocytic leukemia (HL-60) cells were induced by 1,25-dihydroxyvitamin D3 (calcitriol) to differentiate and examined using a panel of monoclonal antibodies (MoAbs) and functional assays. Although morphologically and histochemically these cells appeared to be of the monocyte-macrophage phenotype, there was a ...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/0161-5890(85)90180-4
更新日期：1985-05-01 00:00:00
abstract：:Ovalbumin (OVA) is a major allergen (Gal d II) of hen egg white and is often the cause of hypersensitivity reactions to food. Further knowledge of the antigenic and allergenic epitopes of allergens will provide better treatment of this disease. To analyse these epitopes we produced a panel of monoclonal antibodies (mA...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/0161-5890(92)90055-3
更新日期：1992-10-01 00:00:00
abstract：:The interaction between a single-chain Fv (sFv) of the monoclonal antibody 3A21 and its antigen, bovine pancreatic ribonuclease A (RNase A), was studied by site-directed mutagenesis of the hypervariable regions and fluorescence polarization analysis. The affinity constants of wild-type sFv and a mutant sFv D31A (Asp31...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/s0161-5890(97)00094-1
更新日期：1997-07-01 00:00:00
abstract：:In the present study, we report the activation of murine peritoneal macrophages in vitro on irradiation with sublethal dose of UVB (50 mJ/cm(2)). The activation involves enhanced expression of CD18 molecule and production of nitric oxide (NO), tumor necrosis factor (TNF-alpha) and interleukin-1 (IL-1). Production of N...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/j.molimm.2004.01.001
更新日期：2004-04-01 00:00:00
abstract：:Recent studies have shown that aberrant activation of the complement system plays an important role in the pathogenesis of preeclampsia. There is evidence to suggest that aberrant activation of the complement system may already be present during the first trimester. Here, we performed a prospective study in which peri...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/j.molimm.2020.03.021
更新日期：2020-04-16 00:00:00
abstract：:the SC5b-8 complex of human complement is a hydrophilic molecule of mol. wt 800,000-850,000 that is seen in the electron microscope as an elongated, straight or curved structure of 50-55 nm total length and 8-9 nm width. Tryptic attack on the fluid-phase complex exposes lipid-binding surfaces on the molecule. The tryp...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/0161-5890(82)90327-3
更新日期：1982-09-01 00:00:00
abstract：:Mice were immunized with a purified preparation of human alpha-foetoprotein (AFP) and their spleen cells were hybridized with mouse myeloma cells. Eleven hybridoma cell lines secreting antibody to AFP were obtained. These antibodies were classified into two groups on the basis of different antigenic determinants they ...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/0161-5890(82)90281-4
更新日期：1982-12-01 00:00:00
abstract：:Rabbit antisera specific for horseradish peroxidase inhibit the catalytic activity of the enzyme. All antibodies prepared against the holoenzyme react with the peroxidase apoenzyme. However, only a minority (30-45%) of the total antiperoxidase pool cross react with reduced and alkylated apoenzymes. The antibodies inhi...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/0161-5890(82)90366-2
更新日期：1982-05-01 00:00:00
abstract：:Immunoglobulins are important elements of the adaptive immune system that bind to an immense variety of microbial antigens to neutralize infectivity and specify effector functions. In the present study, the immunoglobulin heavy chain constant region (IGHC) genes from marine mammals were identified and compared with th...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/j.molimm.2018.04.011
更新日期：2018-07-01 00:00:00
abstract：:SHP-1 plays an important role for the regulation of signaling from various hematopoietic cell receptors. In this study, we examined IL-3-induced cell proliferation and IL-3 depletion-induced apoptosis in bone marrow-derived mast cells (BMMC) established from motheaten (me) that lack SHP-1 expression, viable motheaten ...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/j.molimm.2010.10.001
更新日期：2011-01-01 00:00:00
abstract：:Human IgE against helminths is a normal component of the whole protective response elicitesd during infection, when specific IgE to a great number of antigens is produced; however, few of those IgE binding components are actually allergens. In general, considering the strong Th2/IgE responses during helminth infection...
journal_title：Molecular immunology
pub_type： 杂志文章,评审
doi：10.1016/j.molimm.2018.03.014
更新日期：2018-08-01 00:00:00
abstract：:The allergenic cross-reactivity of cytochromes c isolated from Kentucky bluegrass (KBG) and ryegrass (RG) pollens was demonstrated by the finding that both cytochromes elicited PCA reactions of comparable titers in rats sensitized with murine reaginic antiserum to either KBG or RG cytochrome c. However, allergenic dif...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/0161-5890(82)90263-2
更新日期：1982-12-01 00:00:00
abstract：:We have investigated the chemical structure of the antigenic determinant of Candida krusei cell-wall mannan. Acetolysis of the mannan, obtained by extraction with alkali and purified as copper complex, gave five oligosaccharides (from mono- to pentasaccharide) and a minor amount of an octasaccharide. Partial acetolysi...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/0161-5890(82)90202-4
更新日期：1982-03-01 00:00:00
abstract：:Triptolide is an active component of extracts derived from the medicinal vine Tripterygium Wilfordii Hook. f. (TWHF) whose extracts have been used to treat inflammatory bowel disease (IBD). We have reported that triptolide showed therapeutic activity in a murine IBD model, but the potential mechanism of action of this...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/j.molimm.2010.06.007
更新日期：2010-09-01 00:00:00
abstract：:TNFα converting enzyme (TACE) is responsible for converting membrane-anchored TNFα to its soluble form in mammalian. However, the function and characteristics of TACE in teleosts is unclear. In this study, we report the cloning of a cDNA sequence of the PaTACE from ayu, Plecoglossus altivelis. PaTACE encodes an 865-aa...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/j.molimm.2014.10.010
更新日期：2015-02-01 00:00:00
abstract：:T-lymphocyte proliferative responses were determined with peripheral blood lymphocytes (PBL), peritoneal exudate lymphocytes (PEL) and lymph node lymphocytes (LNL) of guinea pigs immunized with horse cytochrome c (HCytc). The proliferative response of PBL activated by peptide 81-104 from animals immunized with HCytc w...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/0161-5890(88)90115-0
更新日期：1988-08-01 00:00:00
abstract：:V(D)J recombination is a mechanism peculiar to the somatic rearrangement of antigen receptor genes. It requires both expression of the RAG-1 and RAG-2 recombinases and accessibility of the substrate to its recombinase and post-cleavage/DNA repair stage. TCR revision is a genetic correction mechanism that changes T cel...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/j.molimm.2007.06.153
更新日期：2008-01-01 00:00:00
abstract：:We have developed a method for use in investigating factors controlling the binding and cross-linking by bivalent haptens of immunoglobulin E (IgE) bound to receptors on rat basophilic leukemia (RBL) cells. This method employs monoclonal anti-2,4-dinitrophenyl (DNP) IgE that is labeled with fluorescein-5-isothiocyanat...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/0161-5890(86)90089-1
更新日期：1986-07-01 00:00:00
abstract：:Physicochemical techniques were used to verify previous immunochemical studies showing homology of the human Thy-1 (formerly p25) antigen and the murine Thy-1 or theta antigen. Peptide maps and amino acid compositions showed close similarity between these two proteins; however, they were not identical. These data conf...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/0161-5890(82)90216-4
更新日期：1982-03-01 00:00:00
abstract：:The antigenic structural features of alpha-lactalbumin have been investigated using a radioimmunoassay, peptide inhibition of the quantitative precipitin reaction, and by immunodiffusion analysis after chemical modification of the molecule. Antigenic activity (in rabbits) was localized to several peptic fragments and ...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/0161-5890(82)90192-4
更新日期：1982-11-01 00:00:00
abstract：:Cutaneous leishmaniasis (CL) mainly caused by Leishmania braziliensis is a chronic inflammatory disease widely spread in Brazil. Genetic variant strains of this parasite have been associated with atypical clinical manifestations of CL in an endemic area in Brazil. Furthermore, these strains have presented distinct bio...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/j.molimm.2018.12.013
更新日期：2019-02-01 00:00:00
abstract：:The binding of CD40 ligand on activated T cells to CD40 on resting B cells induces the expression of costimulatory molecules B7-1 (CD80) and B7-2 (CD86). The induction of B7 molecules by CD40 ligand-CD40 interaction represents a critical step in rendering B cells competent for antigen presentation. The CBA/N mouse has...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/0161-5890(96)00005-3
更新日期：1996-04-01 00:00:00
abstract：:This study identified the peptide-binding motif of HLA-DRA/DRB1*1401 (DR1401). First, peptides containing DR1401 restricted epitopes were identified using tetramer-guided epitope mapping. Among these, an influenza B peptide was selected for the motif study. After confirming the binding register for this peptide using ...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/j.molimm.2007.12.013
更新日期：2008-05-01 00:00:00
abstract：:The innate immune response is critical to enteric disease resistance and the induction of mucosal adaptive immunity. In mucosae of the small intestine, Peyer's patches play a central role in immune surveillance and sampling of bacteria by specialized M cells. The innate immune response to Salmonella enterica serovar C...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/j.molimm.2005.10.011
更新日期：2006-04-01 00:00:00
abstract：:Bacterial lipopolysaccharide (LPS) activates the innate immune system by forming a complex with myeloid differentiation factor 2 (MD-2) and Toll-like receptor 4 (TLR4), which is present on antigen presenting cells. MD-2 plays an essential role in this activation of the innate immune system as a member of the ternary c...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/j.molimm.2015.08.008
更新日期：2015-12-01 00:00:00
abstract：:Dehydroepiandrosterone (DHEA) has anti-inflammatory, anti-oxidant and immune-regulating properties, while the mechanism of DHEA actions remains unclear. The present study aims to investigate the effect and possible mechanism of DHEA on immune function of mice in vivo and in vitro. In vivo, a lipopolysaccharide (LPS)-i...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/j.molimm.2019.06.004
更新日期：2019-08-01 00:00:00
abstract：:Interleukin 1β (IL-1β) is a pro-inflammatory cytokine secreted by activated macrophages and monocytes. Previously, we have reported that bone morphogenetic protein-6 (BMP-6) induces inducible nitric oxide synthase (iNOS) expression via IL-1β in macrophages. In the present study, we demonstrate that BMP-6 increases IL-...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/j.molimm.2011.04.019
更新日期：2011-07-01 00:00:00
abstract：:In the present study, we show that the treatment of Epstein-Barr virus (EBV) latently infected Raji cells with TPA/SB caused the cell growth arrest. The Zta-positive cells were predominantly enriched in G0/G1 phase of cell cycle. When Zta expression reached a maximal level, a fraction of Zta expressing cell population...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/j.molimm.2010.02.017
更新日期：2010-05-01 00:00:00
abstract：:A monoclonal human IgG1, Campath-1H, was digested with glycosidases to assess the effect of carbohydrate on the functional activities of an IgG1. Removal of the complete carbohydrate moiety abolished complement lysis activity and antibody-dependent cell-mediated cytotoxicity, but left antigen binding activity and prot...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/0161-5890(95)00118-2
更新日期：1995-12-01 00:00:00
