Abstract:
:A microchemical assay for phosphorus was applied to the measurement of DNA in immune complexes formed with monoclonal or serum anti-DNA autoantibodies and DNA of varying size and conformation. Two monoclonal antibodies were produced by hybridomas derived from spleen cells of autoimmune MRL-lpr/lpr mice and were purified from culture fluid by affinity chromatography on columns of goat anti-mouse Ig-Sepharose. Double-helical DNA fragments were prepared by brief digestion of calf thymus DNA with micrococcal and S1 nucleases and fractionation on Sepharose 4B; their double-stranded structures was confirmed by measurement of thermal denaturation. Immune complexes were formed with monoclonal or serum antibodies and native DNA or DNA fragments or denatured DNA; the complexes were precipitated with goat anti-mouse IgG and washed, and DNA phosphorus content of the precipitates was measured. With one monoclonal autoantibody (H241), there were discontinuous increases in the amount of DNA that could be bound (and decreases in the antigen concn required for half-maximal binding) as the DNA size increased. There were especially marked increases in binding efficiency as fragment size increased from an average of 100 (range 85-105) to an average of 150 (range 105-170) base pairs, and again between 450 (range 360-620) and 600 (range 425-825) base pairs. A second monoclonal antibody (H143) did not show significant variation in binding with DNA fragments larger than 300 base pairs. With smaller fragments, the amount of DNA bound by H143 was reduced, but the DNA concn required for half-maximal binding was not. Affinities of these monoclonal antibodies were within the spectrum of human systemic lupus erythematosus serum IgG anti-DNA autoantibodies. The dependence of binding on mol. wt is important in the evaluation of these monoclonal antibodies as biochemical reagents and as potential participants in formation of immune complexes in vivo.
journal_name
Mol Immunoljournal_title
Molecular immunologyauthors
Ali R,Dersimonian H,Stollar BDdoi
10.1016/0161-5890(85)90065-3subject
Has Abstractpub_date
1985-12-01 00:00:00pages
1415-22issue
12eissn
0161-5890issn
1872-9142journal_volume
22pub_type
杂志文章abstract::TRAF6 is a key player at the cross-roads of development and immunity. The analysis of its in vivo molecular function is a great challenge since severe developmental defects and early lethality caused by Traf6 deficiency in knock-out mice interfere with analyses of the immune response. In this study we have used a new ...
journal_title:Molecular immunology
pub_type: 杂志文章
doi:10.1016/j.molimm.2010.08.011
更新日期:2010-11-01 00:00:00
abstract::The carbohydrate binding specificity of the basic lectin from winged bean (Psophocarpus tetragonolobus) was investigated by quantitative precipitin analysis using blood group A, B, H, Le and I substances and by precipitation inhibition with various mono- and oligosaccharides. The lectin precipitated best with A1 subst...
journal_title:Molecular immunology
pub_type: 杂志文章
doi:10.1016/0161-5890(89)90101-6
更新日期:1989-02-01 00:00:00
abstract::Glycosylation is an important protein post-translational modification. In this process, the intermediate product, Tn antigen, arises from somatic mutations in core1β3-galactosyltransferase-specific molecular chaperone (Cosmc), which is required for the formation of active core1β3-galactosyltransferase (T-synthase). As...
journal_title:Molecular immunology
pub_type: 杂志文章
doi:10.1016/j.molimm.2017.06.250
更新日期:2017-10-01 00:00:00
abstract:BACKGROUND:Published data on crustacean allergens are incomplete. The identification of tropomyosin (TM), arginine kinase (AK), sarcoplasmic Ca-binding protein (SCP) and myosin light chain (MLC) as shrimp allergens are all important contributions but additional allergens are required for the development of a complete s...
journal_title:Molecular immunology
pub_type: 杂志文章
doi:10.1016/j.molimm.2011.06.216
更新日期:2011-09-01 00:00:00
abstract::Tremendous advances in our understanding of the thrombotic microangiopathies (TMAs) have revealed distinct disease mechanisms within this heterogeneous group of diseases. As a direct result of this knowledge, both children and adults with complement-mediated TMA now enjoy higher expectations for long-term health. In t...
journal_title:Molecular immunology
pub_type: 杂志文章,评审
doi:10.1016/j.molimm.2015.03.246
更新日期:2015-09-01 00:00:00
abstract::Peach non-specific lipid transfer protein (Pru p 3; nsLTP) has been characterized as the major food allergen in the adult Mediterranean population. Its wheat homologous protein, Tri a 14 has a relevant inhalant allergen in occupational baker's asthma. Different sensitization patterns to these allergens have been found...
journal_title:Molecular immunology
pub_type: 杂志文章
doi:10.1016/j.molimm.2009.07.028
更新日期:2009-12-01 00:00:00
abstract::Nine monoclonal antibodies (MAbs) directed against crystallized human adenovirus type 1 (Ad h 1) hexon were tested with purified homologous and heterologous hexon preparations by gel diffusion. Six MAbs formed a single line with the homologous hexon in a 2-well pattern, and 3 MAbs formed lines only in biclonal combina...
journal_title:Molecular immunology
pub_type: 杂志文章
doi:10.1016/0161-5890(85)90084-7
更新日期:1985-08-01 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::Art v 3, the lipid-transfer protein (LTP) of Artemisia vulgaris pollen is a relevant allergen showing frequent cross-reactivity with homologues in other plants. Here we report the identification of four full-length Art v 3 sequences obtained by cDNA cloning using mass spectrometry-based sequencing. Two isoforms, Art v...
journal_title:Molecular immunology
pub_type: 杂志文章
doi:10.1016/j.molimm.2009.03.021
更新日期:2009-06-01 00:00:00
abstract::A two-step purification procedure of Par j I from the whole Parietaria judaica pollen extract is described. The first step consisted of gel filtration HPLC using a TSKG 3000 SW column, and 0.1% trifluoroacetic acid as the eluant. By this method, proteins were separated from the highly colored material present in the e...
journal_title:Molecular immunology
pub_type: 杂志文章
doi:10.1016/0161-5890(90)90110-l
更新日期:1990-02-01 00:00:00
abstract::The functional importance of each amino acid residue making up the antigenic determinants of three different peptide-mAb interactions was determined using complete series of substitution analogs of the three immunizing synthetic peptides. Fingerprint substitution profiles for the three different antigenic determinants...
journal_title:Molecular immunology
pub_type: 杂志文章
doi:10.1016/0161-5890(93)90032-7
更新日期:1993-04-01 00:00:00
abstract::Stimulation of cells of the rat basophilic leukemia line RBL-2H3, which are used as a model in biochemical studies of mast cells, by antigen or by the calcium ionophore ionomycin, are known to cause secretion of mediators of inflammation. These stimuli have now been found to cause a decrease in the cells' cytosolic pH...
journal_title:Molecular immunology
pub_type: 杂志文章
doi:10.1016/0161-5890(88)90142-3
更新日期:1988-11-01 00:00:00
abstract::In this paper, we performed further biochemical characterization of the CD26 antigen, as defined by the mAbs in anti-1F7 and anti-Ta1, in order to clarify the observed functional differences among these mAbs. For this purpose, we developed a mAb, anti-5F8, which recognizes yet another epitope on the CD26 antigen diffe...
journal_title:Molecular immunology
pub_type: 杂志文章
doi:10.1016/0161-5890(92)90099-j
更新日期:1992-02-01 00:00:00
abstract::Complement factor H (CFH) protein is an inhibitor of the alternative pathway of complement (AP) both in the fluid phase and on the surface of host cells. Mouse and human complement factor H-related (CFHR) proteins also belong to the fH family of plasma glycoproteins. The main goal of the current study was to compare t...
journal_title:Molecular immunology
pub_type: 杂志文章
doi:10.1016/j.molimm.2014.06.028
更新日期:2014-11-01 00:00:00
abstract::N-Acetylcysteine (NAC) has been widely used as an antioxidant in research, however, it has also been found to reduce the binding of TNF to its receptor independent of its antioxidative role. In this study, we investigated the effect of NAC on NF-kappaB activation. In HeLa cells, Hep3B cells, and A549 cells, DNA-bindin...
journal_title:Molecular immunology
pub_type: 杂志文章
doi:10.1016/j.molimm.2008.06.012
更新日期:2008-09-01 00:00:00
abstract::Triptolide has been used extensively in China for the treatment of autoimmune diseases and tumor for many centuries. Nevertheless, little is known about its exact immunosuppressive and anti-inflammatory properties. Increasing recognition of the importance of renal tubular epithelial cells (TECs) in renal diseases rais...
journal_title:Molecular immunology
pub_type: 杂志文章
doi:10.1016/j.molimm.2005.07.026
更新日期:2006-03-01 00:00:00
abstract::Intercellular adhesion molecule-1 (ICAM-1) functions in leukocyte trafficking, activation, and the formation of the immunological synapse. ICAM-1 is a member of the immunoglobulin superfamily of adhesion proteins, which share a similar structure of repeating Ig-like domains. Many genes in this family, including ICAM-1...
journal_title:Molecular immunology
pub_type: 杂志文章
doi:10.1016/j.molimm.2010.03.005
更新日期:2010-05-01 00:00:00
abstract::In most cases, cytotoxic T cell activation is dependent on the interaction of the T cell receptor (TCR) and CD8 with MHC class I molecules. In the CD8(+) T cell system based on the mouse cytotoxic T cell clone 2C, recognition of the allogeneic MHC L(d) exhibits a less significant role for CD8 than recognition of the s...
journal_title:Molecular immunology
pub_type: 杂志文章
doi:10.1016/s0161-5890(02)00259-6
更新日期:2003-01-01 00:00:00
abstract::To investigate the interaction of DNA and anti-DNA antibodies in the immune complex disease of systemic lupus erythematosus, the fine specificity of binding of a monoclonal anti-DNA antibody was determined. This antibody, termed Cll, was derived from the fusion of spleen cells from an autoimmune MRL-lpr/lpr mouse with...
journal_title:Molecular immunology
pub_type: 杂志文章
doi:10.1016/0161-5890(82)90364-9
更新日期:1982-05-01 00:00:00
abstract::The binding specificity of rat alveolar macrophages (AM phi) for sheep erythrocytes (E) coated with gangliosides GM1, GM2, GM3, GD1a, GD1b or GT1b was analyzed in a rosette assay by studying the inhibitory effect of gangliosides, various carbohydrates, IgG, C3b-like C3, and fibronectin in this assay. The uptake of gan...
journal_title:Molecular immunology
pub_type: 杂志文章
doi:10.1016/0161-5890(86)90163-x
更新日期:1986-11-01 00:00:00
abstract:BACKGROUND:Interleukin-1 beta (IL-1β) plays pivotal roles in the progression of allergic airway inflammation. This study aims to determine whether the blockade of IL-1β can inhibit airway inflammation in guinea pigs with allergic asthma induced by the inhalation of aerosolized ovalbumin (OVA). METHODS:Healthy guinea p...
journal_title:Molecular immunology
pub_type: 杂志文章
doi:10.1016/j.molimm.2013.11.006
更新日期:2014-03-01 00:00:00
abstract::Topoisomerase cDNA and various fragments thereof generated by the DNA polymerase chain reaction were cloned into plasmid expression vectors (pET series) and the expressed polypeptides were probed with scleroderma sera from seven different patients immunoreactive with topoisomerase I. All sera reacted selectively with ...
journal_title:Molecular immunology
pub_type: 杂志文章
doi:10.1016/0161-5890(91)90145-a
更新日期:1991-04-01 00:00:00
abstract::Arginine kinase (AK) is a panallergen present in crustaceans, which can induce an immunoglobulin (Ig) E-mediated immune response in humans. The aim of this work was to map and characterize the antigenic epitopes of Scylla paramamosain AK. Specific-protein-A-enriched IgG raised in rabbits against purified S. paramamosa...
journal_title:Molecular immunology
pub_type: 临床试验,杂志文章
doi:10.1016/j.molimm.2015.02.010
更新日期:2015-06-01 00:00:00
abstract::The role of glycosylation in membrane expression and secretion of IgM and IgA was investigated in murine lymphoma and hybridoma cell lines, derived from I.29 tumor, which synthesize IgM or IgA with identical variable regions. Tunicamycin, a selective inhibitor of N-linked glycosylation, prevented the membrane expressi...
journal_title:Molecular immunology
pub_type: 杂志文章
doi:10.1016/0161-5890(84)90023-3
更新日期:1984-08-01 00:00:00
abstract::The regulatory role of MEF2 (myocyte enhancer binding factor 2) proteins in nonmuscle tissues has not been well characterized. We examined the expression of MEF2 family members, namely, MEF2A, -B, -C, and -D, in the differentiation of HL60 promyeloid cells and observed the remarkable increase in the expressions of MEF...
journal_title:Molecular immunology
pub_type: 杂志文章
doi:10.1016/s0161-5890(99)00140-6
更新日期:1999-12-01 00:00:00
abstract::T cell responses are determined by the environment in which antigen is encountered. In the absence of proper costimulation, anergizing stimuli induce the activation of a specific program of gene expression. Proteins encoded by these genes impose a state of functional unresponsiveness in anergic T cells through the act...
journal_title:Molecular immunology
pub_type: 杂志文章
doi:10.1016/j.molimm.2008.09.029
更新日期:2009-02-01 00:00:00
abstract::Aging is an irreversible physiological process characterized by increased risk of diseases, reduced effectiveness of vaccines, and decreased immune responses. One of the most prominent paradigms of aging and age related conditions is the progressive accumulation of un-repaired DNA breaks leading to apoptosis and exhau...
journal_title:Molecular immunology
pub_type: 杂志文章
doi:10.1016/j.molimm.2012.07.001
更新日期:2013-01-01 00:00:00
abstract::Humanization of rodent mAbs by CDR-grafting (also called "reshaping") is now a standard procedure for reducing immunogenicity and recruiting human effector functions. However, the design of the humanized mAb can sometimes prove circuitous. Attempts were made to humanize L-25, a mouse antibody against the human alpha-4...
journal_title:Molecular immunology
pub_type: 杂志文章
doi:10.1016/s0161-5890(99)00087-5
更新日期:1999-08-01 00:00:00
abstract::Natural resistance to infection with intracellular parasites, such as Leishmania, Salmonella, and Mycobacterium, is controlled in mice by the expression of a single dominant gene locus designated Lsh/Ity/Bcg. Natural resistance-associated macrophage protein gene 1 (NRAMP1) was isolated as a candidate gene. NRAMP1 enco...
journal_title:Molecular immunology
pub_type: 杂志文章
doi:10.1016/s0161-5890(96)00088-0
更新日期:1996-11-01 00:00:00
abstract:BACKGROUND:The complement system is well known for its role in innate immunity via the classical, the alternative and the lectin pathways, although recent investigations suggest expanding roles in adipose tissue. Properdin stabilizes C3 convertase following alternative complement activation. Properdin is also present i...
journal_title:Molecular immunology
pub_type: 杂志文章
doi:10.1016/j.molimm.2012.02.110
更新日期:2012-05-01 00:00:00