Abstract：
:To test the fate of developing B cells with autoreactive receptor components, we studied mice homozygous for a knock-in transgene coding the VH domain of an IgM ssDNA-binding antibody. The transgene has unmutated C57 BL/6 V gene segments. Homozygous knock-in mice developed normal numbers of spleen and bone marrow B cells and normal serum Ig concentrations, and had the same low level of serum anti-ssDNA antibody as non-transgenic mice. Mature B cells expressed the transgene, and it underwent mutation and class switching. In young knock-in animals, nearly all IgM and some IgG cDNA clones from bone marrow and spleen contained the transgene V(H)D(H)J(H), with few or no mutations. In many IgM clones from older animals, however, and many IgG clones from both young and old mice, VH domains were revised by productive replacement with a new V(H)D(H) segment. VL segments were diverse. Immunized homozygous knock-in mice produced serum antibodies to polysaccharide, nucleic acid and protein antigens. Monoclonal IgM and IgG antibodies to nucleic acids used either transgenic or revised VH domains; but all of 20 IgG monoclonal antibodies to thyroglobulin used revised VH domain genes. Thus, B cells expressing an autoreactive (ssDNA-binding) VH domain did progress through development and were precursors for cells producing IgM and IgG, but underwent extensive VH gene revision in diversification of antibody responses.
journal_name
Mol Immunoljournal_title
Molecular immunologyauthors
Li J,Geissal ED,Li W,Stollar BDdoi
10.1016/j.molimm.2005.01.010subject
Has Abstractpub_date
2005-08-01 00:00:00pages
1475-84issue
12eissn
0161-5890issn
1872-9142pii
S0161-5890(05)00024-6journal_volume
42pub_type
杂志文章abstract：:Signal transduction by the B cell receptor (BCR) is an absolute requirement for the selection and development of B lymphocytes at multiple checkpoints. Binding to antigen via the BCR is complemented by a co-stimulus delivered through accessory and co-stimulatory cell surface molecules that regulate the signalling thre...
journal_title：Molecular immunology
pub_type：
doi：10.1016/s0161-5890(02)00203-1
更新日期：2003-01-01 00:00:00
abstract：:Ectopic follicles are non-encapsulated organized lymphoid structures that form at sites of inflammation and presumably contribute to the activation and differentiation of cells with autoreactive potential within target tissues. As such, directed targeting of ectopic follicles in settings of autoimmunity may provide a ...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/j.molimm.2014.05.006
更新日期：2014-12-01 00:00:00
abstract：:Lipopolysaccharide (LPS) present on the outer membrane of Gram-negative bacteria is one of the most important pathogen-associated molecular patterns and a potent elicitor in innate immunity. In human, TLR4 (Toll-like receptor 4) and MD-2 (myeloid differiation-2) form a receptor complex to transduce the LPS signal into...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/j.molimm.2008.02.006
更新日期：2008-05-01 00:00:00
abstract：:CD4+CD25+ natural Treg cells, which are developed in the thymus, migrate to the periphery to actively maintain self-tolerance. Similar to conventional T cells, TCR signals are critical for the development and activation of Treg cell inhibitory function. While PKC-theta-mediated TCR signals are required for the activat...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/j.molimm.2008.08.275
更新日期：2008-12-01 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：:Two monoclonal antibodies, HH8 and HH9, have been established after immunization of mice with galactosyl-A glycolipid antigen having the terminal structure, Gal beta 1----3GalNAc alpha 1----3[Fuc alpha 1----2]Gal beta 1----R, which is the precursor for type 3 chain A (repetitive A) and type 3 chain H (A-associated H)....
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/0161-5890(88)90068-5
更新日期：1988-02-01 00:00:00
abstract：OBJECTIVE:Spinal cord injury (SCI) is a neurological disease with high incidence and disability. In this paper, we made a foundational study in long non-coding RNA paternally expressed gene 10 (lncRNA PEG10) at PC-12 cells. METHODS:We used CCK8, flow cytometry, migration and invasion assay to detect changes at the cel...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/j.molimm.2019.11.012
更新日期：2020-02-01 00:00:00
abstract：:Reduced expression of Erythrocyte Complement Receptor 1 (E-CR1) is envisaged to contribute significantly to the pathophysiology of systemic lupus erythematosus (SLE). We determined the levels of CR1 transcript in the neutrophils from 25 untreated patients with active SLE and 25 normal healthy individuals and, studied ...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/j.molimm.2006.07.300
更新日期：2007-03-01 00:00:00
abstract：:The immunosuppressive cyclic undecapeptide cyclosporine (Cs) represents a useful model for studying the molecular basis of antibody-antigen interactions. The three-dimensional structure of the Cs molecule is known and a large panel of monoclonal antibodies (mAbs) to Cs has been well characterized by cross-reactivity s...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/0161-5890(90)90126-k
更新日期：1990-10-01 00:00:00
abstract：:The antigen-limiting nature of microtiter ELISAs predicts that antibodies of minor classes may be underestimated when the same specimen contains large amounts of IgG antibodies specific for the same antigen. Such competitive inhibition can be diagnosed from ELISA titration plots. A method is described to eliminate the...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/0161-5890(90)90044-z
更新日期：1990-04-01 00:00:00
abstract：:We have previously noted that a specific amino acid sequence could form the second framework region of human, mouse and rabbit immunoglobulin light chains, suggesting that this sequence has been preserved for 80 million years. Through divergent evolution, each species has acquired a different set of framework region s...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/0161-5890(92)90047-2
更新日期：1992-09-01 00:00:00
abstract：BACKGROUND:Dendritic cells (DCs) and regulatory T (Treg) cells are crucial for inducing immune tolerance. However, the suppressive function of infused Treg cells and immature DCs (imDCs) following solid organ transplantation remains unclear. METHODS:ImDCs derived from DA-donor rats and Treg cells isolated from spleens...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/j.molimm.2016.10.004
更新日期：2016-11-01 00:00:00
abstract：:The fifth component of the complement cascade, C5a, was iodinated using the Bolton-Hunter reagent. Results from the present study, using the high affinity ligand, [125I]Bolton-Hunter-labeled C5a ([125I]BH-C5a), revealed a single binding site on membranes prepared from human neutrophils, U-937 cells and human monocytes...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/0161-5890(92)90168-w
更新日期：1992-11-01 00:00:00
abstract：:The aim of the study was to explore whether fever-range hyperthermia (FRH) might enhance the anticancer and immunoregulatory activities of protein-bound polysaccharides (PBP), a class of fungus derived immunomodifiers used in the cancer adjuvant therapy. Blood lymphocytes and breast cancer cells (MCF-7) were cultured ...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/j.molimm.2016.10.013
更新日期：2016-12-01 00:00:00
abstract：:Vasoactive intestinal peptide (VIP) induces phosphorylation of a basic 38,000 mol. wt protein in a human lymphoblastic cell line (Molt 4b) and a human colon carcinoma cell line (HT29). In both cell types, VIP interacts with specific high affinity receptors to activate adenylate cyclase and cAMP-dependent protein kinas...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/0161-5890(89)90010-2
更新日期：1989-06-01 00:00:00
abstract：:We have designed and produced a stable bispecific scFv dimer (bisFv) by non-covalent association of two hybrid VH-VL pairs derived from an anti-neuraminidase antibody (NC10) and an anti-glycophorin antibody (1C3). The bisFv dimer was demonstrated to have binding activity to the two respective target antigens and was e...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/s0161-5890(96)00097-1
更新日期：1996-12-01 00:00:00
abstract：:Pulmonary exposure to innocuous aeroallergens is a common event leading to inhalation tolerance. Distinct subsets of pulmonary dendritic cells (DC) and regulatory T cells (T(Reg)) play critical roles in mediating and maintaining such tolerance. In asthmatics, the same aeroallergens drive a maladaptive, Th2-biased immu...
journal_title：Molecular immunology
pub_type： 杂志文章,评审
doi：10.1016/j.molimm.2006.06.016
更新日期：2007-01-01 00:00:00
abstract：:Spondyloarthritis is the second most common form of chronic inflammatory arthritis and a unique hallmark of the disease is pathologic new bone formation. Several cytokine pathways have been genetically associated with ankylosing spondylitis (AS), the prototypic subtype of SpA, and additional evidence from human and an...
journal_title：Molecular immunology
pub_type： 杂志文章,评审
doi：10.1016/j.molimm.2013.07.016
更新日期：2014-01-01 00:00:00
abstract：:The immune system protects from infections primarily by detecting and eliminating invading pathogens. This is predominantly mediated by innate immune cells like neutrophils, monocytes and dendritic cells (DCs) expressing specific receptors recognizing pathogen-associated molecular patterns. DC activation by pathogens ...
journal_title：Molecular immunology
pub_type： 杂志文章,评审
doi：10.1016/j.molimm.2020.02.015
更新日期：2020-05-01 00:00:00
abstract：:The protective antigen (PA(83)) of Bacillus anthracis is the dominant antigen in natural and vaccine-induced immunity to anthrax infection. Three human single-chain variable fragments (scFvs) against cell bound PA were isolated from an antibody phage display library. Specifically, the antibodies were evaluated for the...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/j.molimm.2006.11.011
更新日期：2007-04-01 00:00:00
abstract：:The T-cell surface proteins CD4 (L3T4) and CD8 (Lyt2) are first expressed on thymocytes as they undergo maturation in the thymus. Two immature T-lymphoma cell clones SL12.4 and RS4.2 which constitutively express low or undetectable levels of CD4 and CD8 were used to investigate the activation of CD4 and CD8 gene expre...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/0161-5890(91)90087-z
更新日期：1991-01-01 00:00:00
abstract：:The high affinity receptor for IgE, which mediates allergic reactions, is found exclusively on mast cells, basophils and epidermal Langerhans cells. It is composed of an alpha, beta and two gamma-polypeptide chains, inserted as a complex into the plasma membrane. The alpha and beta-subunits are produced only by these ...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/0161-5890(96)84614-1
更新日期：1996-07-01 00:00:00
abstract：:Cytohesin-1 is a guanine nucleotide exchange factor for ADP ribosylation factor 6 (Arf6) in human blood neutrophils and differentiated PLB-985 neutrophil-like cells. Cytohesin-1 regulates adhesion and the transendothelial migration of monocytes, dendritic cells and T lymphocytes through activation of the β2 integrin L...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/j.molimm.2011.03.018
更新日期：2011-07-01 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：:Placental growth factor (PlGF), a member of vascular endothelial growth factors (VEGF) family, is considered as an important antigen associated with pathological conditions such as cancer cell growth, and metastasis. PlGF-targeting via nanobody (Nb) therefore could be beneficial to modulate these pathologies. In this ...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/j.molimm.2016.09.012
更新日期：2016-10-01 00:00:00
abstract：:Three interferon regulatory factor (IRF) genes, CaIRF-1, CaIRF-2 and CaIRF-7, and their promoters of snakehead (Channa argus) were cloned and characterized. The CaIRF-1 gene consists of ten exons, spans 4.3 kb and encodes a putative peptide of 299 aa. The CaIRF-2 gene consists of nine exons, spans 8 kb and encodes a p...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/j.molimm.2007.11.011
更新日期：2008-04-01 00:00:00
abstract：:A monoclonal antibody (mAb) MF30 (IgGl) against human lactate dehydrogenase isoenzyme 5 (HLDH5) was prepared. MF30 was found to bind with high specificity to HLDH5 when the enzyme was adsorbed onto a polystyrene plate but did not recognize the isoenzyme when in solution. The isoenzymes HLDH1, HLDH2 and HLDH3 adsorbed ...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/0161-5890(86)90122-7
更新日期：1986-09-01 00:00:00
abstract：:Most of the complement proteins in circulation are, by and large, synthesized in the liver. However data accumulated over the past several decades provide incontrovertible evidence that some if not most of the individual complement proteins are also synthesized extrahepatically by activated as well as non-activated ce...
journal_title：Molecular immunology
pub_type： 杂志文章,评审
doi：10.1016/j.molimm.2016.11.003
更新日期：2017-04-01 00:00:00
abstract：:Twenty-seven murine monoclonal anti-hen egg-white lysozyme (HEL) antibodies were tested with a panel of nine antigens; eight avian lysozymes and human lysozyme. The antibodies were arranged into 10 groups based on their antigen specificity and cross-reactivity. Antigenic determinants recognized by each group of antibo...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/0161-5890(87)90081-2
更新日期：1987-02-01 00:00:00
abstract：:Forty different PCR clones encoding a llama variable heavy chain domain were analysed. The majority of these clones are derived from heavy-chain antibody cDNA in which the entire CH1 exon is absent. It appears from the amino acid within the VHH framework 1 and 3 that all the llama clones belong to the VH III family. H...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/s0161-5890(97)00146-6
更新日期：1997-11-01 00:00:00
