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 expression. The protein synthesis inhibitors cycloheximide (CHX) and pactamycin rapidly and reversibly increased CD4 and CD8 mRNA in the cloned cell lines, suggesting that a labile inhibitor protein(s) may regulate the expression of these transcripts. Cell surface CD4 and CD8 proteins were transiently detectable following a pulse of CHX. Thymic epithelial cell lines also induced CD4 and CD8 mRNA and cell surface protein, as well as TCR-alpha mRNA when co-cultivated with SL12.4 T lymphoma cells. The increase in CD4 and CD8 was modest, but stable for at least 22 cell generations after the thymic epithelial inducer cells were removed. Epithelial cells of non-thymic origin did not cause induction of these T-cell differentiation markers in SL12.4 T-lymphoma cells. Since the induction elicited by thymic epithelial cells and protein synthesis inhibitors differed dramatically in kinetics and reversibility, it is likely that these inducers act, at least in part, via different mechanisms. This lymphoma model system may be useful for analysis of molecular events which occur in immature thymocytes undergoing differentiation.
journal_name
Mol Immunoljournal_title
Molecular immunologyauthors
Wilkinson MF,Fong AM,Huynh H,Hays EF,MacLeod CLdoi
10.1016/0161-5890(91)90087-zsubject
Has Abstractpub_date
1991-01-01 00:00:00pages
57-68issue
1-2eissn
0161-5890issn
1872-9142journal_volume
28pub_type
杂志文章abstract：:Dendritic cells (DCs) serve to maintain peripheral tolerance under steady state conditions. Upon triggering by activation signals they initiate strong immune responses. The activation of DCs is accompanied by a rapid upregulation of proinflammatory cytokines, which were shown in other cell types to be regulated by mec...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/j.molimm.2009.11.002
更新日期：2010-02-01 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：: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：:Antipeptide antisera were raised to the second and third complementarity-determining regions of the light chain derived from a human monoclonal IgM (Sie) which had antigammaglobulin activity and belonged to the Wa cross-reactive idiotypic group of human rheumatoid factors, two of whose members (Sie, Wo1) had been prev...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/0161-5890(86)90049-0
更新日期：1986-03-01 00:00:00
abstract：:The variables regions of three syngeneic anti-idiotypic antibodies (Ab2s) were cloned and sequenced. They are encoded by different VL genes, two are from different members of V kappa-Ox1 superfamily. The H chains are encoded by VH genes belonging to three different VH families, J558, Q52 and 7183. Together with a prev...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/0161-5890(92)90045-y
更新日期：1992-09-01 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：:Leprosy is a bacterial disease caused by M. leprae. Its clinical spectrum reflects the host's immune response to the M. leprae and provide an ideal model to investigate the host pathogen interaction and immunological dysregulation. Tregs are high in leprosy patients and responsible for immune suppression of the host b...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/j.molimm.2017.01.008
更新日期：2017-03-01 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：:Evidence has been accumulating for a role of inflammation in the development of Alzheimer's disease (AD), a progressive neurodegenerative disorder causing a common form of dementia in the elderly. C1q, part of the initiation component of the classical complement pathway (CCP), is associated with beta-sheet, fibrillar ...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/j.molimm.2008.02.022
更新日期：2008-06-01 00:00:00
abstract：:Porcine deltacoronavirus (PDCoV) is an emerging swine coronavirus causing diarrhea and intestinal damage in nursing piglets. Previous work showed that PDCoV infection inhibits type I interferon (IFN) production. To further identify and characterize the PDCoV-encoded IFN antagonists will broaden our understanding of it...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/j.molimm.2019.07.003
更新日期：2019-10-01 00:00:00
abstract：:The developmental regulation of antigen receptor gene transcription and recombination are mediated by cis regulatory elements. At the T cell receptor beta chain locus (TCRbeta), two DNase I hypersensitive sites within the Jbeta2-Cbeta2 intron contained binding sites for NF-kappaB and additional nuclear factors and wer...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/s0161-5890(01)00031-1
更新日期：2001-01-01 00:00:00
abstract：:Pathogenic micro-organisms employ a broad range of strategies to survive in and to persistently infect the human host. Far from being completely understood by which highly sophisticated means invading pathogens overcome the host's destructive immune defence, there is a growing body of evidence on particular mechanisms...
journal_title：Molecular immunology
pub_type： 杂志文章,评审
doi：10.1016/j.molimm.2005.06.016
更新日期：2006-01-01 00:00:00
abstract：:The NLRP3 inflammasome constitutes a major antiviral host defense mechanism during influenza virus infection. Inflammasome assembly in virus-infected cells facilitates autocatalytic processing of pro-caspase-1 and subsequent cleavage and secretion of proinflammatory cytokines IL-1β and IL-18. The NLRP3 inflammasome is...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/j.molimm.2017.01.023
更新日期：2017-06-01 00:00:00
abstract：:Antigen-stimulated B lymphocytes undergo genetic and phenotypic changes in germinal centers (GCs), including affinity maturation of immunoglobulin (Ig) genes and Ig heavy chain isotype switching. Expression of the Germinal Center Expressed Transcript (GCET) gene is up-regulated in murine GC B cells. The human homolog ...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/j.molimm.2004.06.031
更新日期：2004-11-01 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：:Hepatitis B virus (HBV) infection afflicts over 350 million people worldwide and is a leading cause of hepatitis, cirrhosis and hepatocellular carcinoma. HBV replicates noncytopathically in hepatocytes, and most of the hepatic injury is caused by the immune response to the virus. While most studies focused on the adap...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/j.molimm.2009.09.022
更新日期：2009-12-01 00:00:00
abstract：:When mouse dendritic cells (DCs) are isolated from tissues, purified and placed in a nutritive culture they die more rapidly than would be expected from their normal turnover in vivo. This can distort culture assays of DC function. We therefore tested several approaches to prolonging DC survival in culture. Of several...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/j.molimm.2014.07.011
更新日期：2015-02-01 00:00:00
abstract：:Protein kinases have been implicated in a number of regulatory mechanisms including signal transduction in many cells. To address the possibility that the large granular lymphocyte (LGL) also uses one or more unique protein kinases for LGL functions, an efficient method was developed to obtain partial cDNA clones for ...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/0161-5890(91)90153-b
更新日期：1991-04-01 00:00:00
abstract：:Interplay between complement factors, regulatory proteins, anaphylatoxins and cytokines could be involved in tendon healing and scar formation. The expression and regulation of complement factors by cytokines or anaphylatoxins are completely unclear in tendon. Hence, the gene expression of the anaphylatoxin receptors ...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/j.molimm.2012.09.001
更新日期：2013-04-01 00:00:00
abstract：:We have sequenced the TCRs from Ld-specific alloreactive T cell hybridomas, whose reactivities we have found to be quite representative of those of a primary dm2 anti-BALB/cJ mixed lymphocyte reaction. We find V beta 6, V beta 7, V beta 8 and V beta 10 gene segments. V alpha usage is diverse, although closely related ...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/0161-5890(96)00034-x
更新日期：1996-06-01 00:00:00
abstract：:The major histocompatibility (MHC) class I antigens are coordinately expressed in most cells. However, some tumors or virus-infected cells lack expression of one MHC class I antigen, while expression of the other MHC class I antigens is unaffected. We previously described the selective expression of MHC class I antige...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/0161-5890(95)00092-5
更新日期：1995-10-01 00:00:00
abstract：:In an attempt to understand the relationship of amino acid sequence to the formation of primary or multiple myeloma-related amyloid (AL amyloid), we have determined the complete amino acid sequence of amyloid protein BAN. This protein belongs to the kappa I immunoglobulin light chain subgroup and has a polypeptide cha...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/0161-5890(86)90173-2
更新日期：1986-01-01 00:00:00
abstract：:The general thinking about the phylogenic distribution of vertebrate Ig classes is that fish and urodele amphibians are only able to synthesize polymeric IgM-like molecules and that the emergence of a new class of LMW Ig occurs for the first time in anouran species. Following immunization of the Mexican axolotl (Ambys...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/0161-5890(88)90054-5
更新日期：1988-12-01 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：:Four different proteases were screened for their capability of selectively digesting murine monoclonal IgGl to obtain active F(ab)2. For the screening, a series of five different mouse monoclonal antibodies (IgGl, k) was used, recognizing different tumor-associated antigens and currently used for radioimmunoimaging st...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/0161-5890(91)90088-2
更新日期：1991-01-01 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：: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：: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：:Serotonin release from rat basophilic leukemia (RBL) cells, sensitized with a DNP-binding monoclonal IgE, was stimulated with solid surface (polystyrene)-bound DNP-amino acids. The stimulatory potency of DNP-amino acids was dependent on the structure of amino acid attached to DNP. Generally, DNP-amino acids with high ...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/0161-5890(91)90134-6
更新日期：1991-06-01 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
