Abstract:
:The ability of Bcl-2 to inhibit apoptotic cell death is well established. Several homologues of the bcl-2 gene, such as bax, bcl-x or mcl-1, have recently been identified. Like Bcl-2, both Bcl-XL and Mcl-1 appear to function as repressors of apoptotic cell death, whereas Bax facilitates it, indicating possible interactions among them in the control of cellular survival. To investigate the in vivo role of expression of bcl-2 gene family products, immunoblot analysis using corresponding specific antisera was performed for peripheral blood cells and some lymphoid tissues in humans. We demonstrated that all Bcl-2 family proteins were expressed at various levels in hematolymphoid cell subpopulations isolated from peripheral blood, tonsil, spleen and thymus. Lymphoid expression of Bcl-2 family proteins tended to increase following activation, but declined with time in culture. Loss of Bcl-2 in cultured lymphoid cells was especially marked. Sole expression of Bax, but not other members of the Bcl-2 family, was observed on neutrophils, seemingly reflecting their shortest life-span among blood leukocytes. The results support the notion that a balance of expression of Bcl-2 family proteins may regulate the life and death of hematolymphoid cells at different stages of cell differentiation and activation.
journal_name
Int Immunoljournal_title
International immunologyauthors
Ohta K,Iwai K,Kasahara Y,Taniguchi N,Krajewski S,Reed JC,Miyawaki Tdoi
10.1093/intimm/7.11.1817subject
Has Abstractpub_date
1995-11-01 00:00:00pages
1817-25issue
11eissn
0953-8178issn
1460-2377journal_volume
7pub_type
杂志文章abstract::The adaptive immune response is involved in the development and progression of atherosclerosis and IL-17A(+) cells play a role in this disease. Although elevated number of CD4(+) IL-17A(+) (Th17) and IL-17A(+)TCRγδ(+) T cells are found within murine atherosclerotic aortas and human plaques, the mechanisms governing IL...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/dxv068
更新日期:2016-05-01 00:00:00
abstract::Fas/APO-1 is a member of the tumor necrosis factor (TNF)/nerve growth factor receptor family. This cell surface protein, when associated with the Fas/APO-1 ligand or specific mAb, elicits an apoptotic response in susceptible cells via an oligomerization of its intracellular domains, termed the'death domains'. We have ...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/10.2.131
更新日期:1998-02-01 00:00:00
abstract::Streptococcus suis capsular type 2 is an important swine pathogen and an agent of zoonosis. Although meningitis is the most common form of disease, septicemia and septic shock are also frequently reported. Despite reports that CD14 is involved in the recognition of encapsulated S. suis by host cells, the mechanisms un...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/dxm003
更新日期:2007-04-01 00:00:00
abstract::In vaccine development, a major objective is to induce strong, specific T cell responses. This might be obtained by targeting antigen to cell surface molecules that efficiently channel the antigen into endocytic compartments for loading of MHC molecules. Antibodies have been used to deliver antigen; however, it is imp...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/dxf110
更新日期:2002-12-01 00:00:00
abstract::A gelatin sponge model of concomitant tumor immunity was employed in order to examine the clonality of T cells associated with progressing and rejected tumor sites. Here we show that freshly isolated T cells bearing TCR V(beta)1, CDR3 RPGTGN, J(beta)1.1 and TCR V(beta)8, CDR3 GD, J(beta)1.6 predominated progressing an...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/12.5.639
更新日期:2000-05-01 00:00:00
abstract::Our aim was to investigate the quantitative relationship between inoculation doses and physiological responses to infection by Salmonella enterica serovar Enteritidis. Rats were orally inoculated with 10-10(9) c.f.u. of S. Enteritidis and monitored for 6 days. Neutrophil and delayed-type hypersensitivity (DTH) respons...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/14.2.111
更新日期:2002-02-01 00:00:00
abstract::In order to develop predictive markers for a beneficial humoral immune response, we evaluated the in vivo and in vitro response to the pandemic (p)H1N1 vaccine in young and elderly individuals. We measured serum antibody response and associated this with the in vitro B-cell response to the vaccine, measured by activat...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/dxr123
更新日期:2012-03-01 00:00:00
abstract::Programmed cell death-1 (PD-1, Pdcd1), an immunoreceptor belonging to the CD28/CTLA-4 family negatively regulates antigen receptor signaling by recruiting protein tyrosine phosphatase, SHP-2 upon interacting with either of two ligands, PD-L1 or PD-L2. Because of the wide range of ligand distribution in the body, its b...
journal_title:International immunology
pub_type: 杂志文章,评审
doi:10.1093/intimm/dxm057
更新日期:2007-07-01 00:00:00
abstract::Toll-like receptor 4 (TLR4) recognizes lipopolysaccharide (LPS). MD-2 is associated with TLR4 and imparts LPS responsiveness to it. Little is known, however, as to whether MD-2 directly regulates LPS recognition by TLR4. To address the issue, we took advantage of a species-specific pharmacology of lipid IVa, an analog...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/13.12.1595
更新日期:2001-12-01 00:00:00
abstract::T cells of an unique phenotype (CD3+CD4-CD8- alpha beta TCR+) develop in vitro from the hematopoietic progenitors, the majority of which carry homologous alpha beta TCR (V alpha 4J alpha 28/V beta 2D beta 1.1J beta 2.6). In the present study, antigen corresponding to the particular alpha beta TCR was investigated, tak...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/6.9.1323
更新日期:1994-09-01 00:00:00
abstract::In this review, we propose that certain modifications in cellular metabolism might function as danger signals triggering inflammasome-mediated immune responses. We propose to call them danger-associated metabolic modifications (DAMMs). As intracellular bacteria can actively modulate macrophage metabolism for their ben...
journal_title:International immunology
pub_type: 杂志文章,评审
doi:10.1093/intimm/dxaa035
更新日期:2020-06-26 00:00:00
abstract::Sphingosine 1-phosphate (S1P) and S1P receptor 1 (S1P1) play an important role in the egress of mature CD4 or CD8 single-positive (SP) thymocytes from the thymus. Fingolimod hydrochloride (FTY720), an S1P1 functional antagonist, induced significant accumulation of CD62L(high)CD69(low) mature SP thymocytes in the thymi...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/dxt069
更新日期:2014-05-01 00:00:00
abstract::Leukocyte diapedesis is a chemotactic multistep process that requires optimal chemoattractant presentation by the endothelial barrier. Recent studies have described a critical role for heparan sulfate glycosaminoglycans (HSGAGs) in the presentation and functions of chemokines essential for lymphocyte interactions with...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/dxt076
更新日期:2014-06-01 00:00:00
abstract::Natural cytotoxicity receptors and NKG2D correspond to major activating receptors involved in triggering of tumor cell lysis by human NK cells. In this report, we investigated the expression of NKG2D ligands (NKG2DLs), MHC class I-related chain (MIC) A, MICB and UL16-binding proteins 1, 2 and 3, on a panel of human no...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/dxn038
更新日期:2008-07-01 00:00:00
abstract::We have used a set of single-chain variable fragment antibodies (sc) genetically fused with an influenza hemagglutinin-derived peptide as a means to investigate the role of CR1 and CR2 in antigen presentation by B cells. When incubated with the B cell lymphoma 2PK3, peptide-containing sc specific for either CR1 or CR1...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/14.3.241
更新日期:2002-03-01 00:00:00
abstract::Impaired lymphocyte function is a common feature of human diabetes. Nucleoside transport across the plasma membrane is an essential step during lymphocyte growth and activation. In our study, we evaluated the impact of diabetic conditions on nucleoside transport system in B lymphocytes. Examination of the nucleoside t...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/dxh195
更新日期:2005-02-01 00:00:00
abstract::We have generated a high copy number transgenic mouse line in which expression of mouse IL-7 cDNA is under the control of the mouse MHC class II E alpha promoter. These mice were generated in order to see if IL-7 over-production in the thymus altered either thymocyte differentiation or the process of negative selectio...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/7.3.401
更新日期:1995-03-01 00:00:00
abstract::The mucosa is one of the initial sites of group A streptococcal (GAS) infection and salivary IgA (sIgA) is thought to be critical to immunity. However, the target epitopes of sIgA and the function of sIgA in GAS immunity, in particular the role of accessory cells and complement, is largely unknown. We studied the aqui...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/11.4.569
更新日期:1999-04-01 00:00:00
abstract::The chaperone glucose-regulated protein 94 (GRP94) has long been used to augment peptide presentation to T cells. This chaperone binds antigenic peptides, binds to receptors on professional antigen-presenting cells (APCs), activates these cells and after internalization, transfers the peptides to MHC class I for activ...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/dxl049
更新日期:2006-07-01 00:00:00
abstract::Intradermal inoculation of plasmids expressing antigens that contain MHC class I-restricted epitopes leads to the induction of specific CD8(+) cytotoxic T lymphocytes (CTL). The role of in situ transfected antigen-presenting cells (APC) in the priming of specific CTL subsequent to intradermal DNA immunization was inve...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/12.6.825
更新日期:2000-06-01 00:00:00
abstract::Trypanosoma cruzi, the agent of Chagas disease contains a major cysteine proteinase, cruzipain (Cz), with an unusual carboxyl-terminal extension (C-T). We have previously reported the presence of sulfate groups in the N-linked oligosaccharide chains of this domain. In order to evaluate the immune responses to sulfated...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/dxm149
更新日期:2008-04-01 00:00:00
abstract::Previously we examined the ability of the host's immune responses to regulate Ig production in an IgE-secreting murine plasma cell tumor (B53). In the present study we have examined the reverse phenomenon, in that we have investigated the effects of this and other plasma cell tumors on the immune responses of their ho...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/7.7.1029
更新日期:1995-07-01 00:00:00
abstract::Dendritic cells (DC) sense saprophytic yeast and pathogenic, filamentous forms of Candida albicans in a specific way, resulting in disparate patterns of DC and T(h) cell activation. Using human and murine DC, such disparate patterns could be traced to the exploitation of distinct recognition receptors. Although usage ...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/dxh012
更新日期:2004-01-01 00:00:00
abstract::The utilization of individual VH7183 genes in the autoimmune non-obese diabetic (NOD) mouse and the normal C57BL/6 mouse, both carrying the IgHb haplotype, was investigated. Nucleotide sequence analyses of a large number of VHDJH rearrangements utilizing VH7183 gene segments allowed us to identify 10 individual member...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/6.4.623
更新日期:1994-04-01 00:00:00
abstract::The role of B7 co-stimulatory signaling in in vivo tumor rejection remains incompletely characterized. In particular, the relative competence of B7-1 (CD80) and B7-2 (CD86) to provide effective co-stimulus is not well defined, and the identification of the T cell co-stimulatory receptor that mediates B7 co-stimulation...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/10.6.791
更新日期:1998-06-01 00:00:00
abstract::Peptide-MHC class II complexes (pMHC II) are degraded by MARCH-I-mediated ubiquitination, and the stabilization of pMHC II by loss of its ubiquitination is one phenotype defining the activation of conventional dendritic cells (cDCs). However, the role of such stabilization of pMHC II in the context of T-cell activatio...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/dxt066
更新日期:2014-05-01 00:00:00
abstract::Antibody responses to ingested antigens can be inhibited by a mechanism known as oral tolerance which acts to prevent excessive stimulation from luminal contents. Local IgA responses can be induced in this non-responsive environment and during intestinal inflammation, mucosal IgG responses can also be increased. The p...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/4.9.975
更新日期:1992-09-01 00:00:00
abstract::Dendritic cells (DCs) act as a first-line recognition system for invading pathogens, such as influenza A. The interaction of DC with influenza A virus results in DC activation via endosomal Toll-like receptors and also leads to presentation of viral peptides on MHC class II molecules. Prior work demonstrated that infl...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/dxm030
更新日期:2007-05-01 00:00:00
abstract::Treatment of melanoma cell lines with IFN-gamma induces the switch from proteasome (PS) to immunoproteasome (iPS). This finding has profound implications for the immunobiology of melanoma cells since certain peptides (such as Melan-A(mart1)(27-35)) are cleaved differently by iPS, thus implying a different ability to b...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/dxg140
更新日期:2003-12-01 00:00:00
abstract::Cross-linking of the IgM antigen receptor on an immature B cell lymphoma (BKS-2) induces growth arrest and apoptosis. This is accompanied by down-regulation of the immediate early genes, egr-1 and c-myc, and a reduction in NF-kappaB activity. Anti-IgM-induced growth arrest and apoptosis of this murine B cell lymphoma ...
journal_title:International immunology
pub_type: 杂志文章
doi:10.1093/intimm/11.6.871
更新日期:1999-06-01 00:00:00