Abstract：
:Mouse spleen cells were activated with IL2 for 4 days in the presence or absence of paraformaldehyde fixed YAC (PFY) tumor cells (spleen cell: PFY ratio 100:1). Fresh spleen cells had poor expression of Ly49A but the expression was significantly upregulated by IL2 activation. Addition of PFYs resulted in a further boosting of Ly49A expression. Besides Ly49A, the Ly49C receptors were also upregulated by PFYs. Upregulated Ly49 expression was not restricted to NK cells (NK1.1 positive cells) but was also seen on T cells (TCRbeta positive cells). Time kinetics studies indicated that maximum upregulation of Ly49 in response to PFY cells occurred on day 3 and 4 and the expression declined thereafter. Ly49 expression in response to PFYs was completely blocked if spleen cells were pre-treated with Mitomycin C, an inhibitor of DNA synthesis. These results show that the addition of a small number of paraformaldehyde fixed YAC cells to spleen cell cultures undergoing IL2 activation, resulted in a significant upregulation of Ly49 receptors and this process was dependent upon cell proliferative activity.
journal_name
Immunol Lettjournal_title
Immunology lettersauthors
Das A,Saxena RKdoi
10.1016/s0165-2478(01)00206-1subject
Has Abstractpub_date
2001-06-01 00:00:00pages
73-7issue
2eissn
0165-2478issn
1879-0542pii
S0165-2478(01)00206-1journal_volume
77pub_type
杂志文章abstract：:The effect of melphalan (L-PAM; L-phenylalanine mustard) administration on natural killer (NK) and natural cytotoxic (NC) activities of spleen cells from normal noninoculated BALB/c mice and mice bearing large MOPC-315 plasmacytoma tumors was investigated. Injection of L-PAM (7.5 or 15.0 mg/kg) had no effect on NK and...
journal_title：Immunology letters
pub_type： 杂志文章
doi：10.1016/0165-2478(85)90128-2
更新日期：1985-01-01 00:00:00
abstract：:In studying terminal lytic events of sensitized erythrocytes which have reacted with all 9 components of complement, we agree in general with the conclusions of Boyle and Borsos [1] that the cellular intermediate passes through the stages E*bound, E*inserted, and E*doomed. However, we differ with these workers on the ...
journal_title：Immunology letters
pub_type： 杂志文章
doi：10.1016/0165-2478(81)90095-x
更新日期：1981-04-01 00:00:00
abstract：:During a pathogenic infection, an inflammatory process is triggered in which several inflammatory mediators, such as cytokines, chemokines, growth factors, complement system components, nitric oxide, and others induce integrity alteration on the endothelial barrier. Chemokines are responsible for regulating leukocyte ...
journal_title：Immunology letters
pub_type： 杂志文章,评审
doi：10.1016/j.imlet.2019.06.001
更新日期：2019-08-01 00:00:00
abstract：:The antigen receptors on the surface of B- and T-lymphocytes are complexes of several integral membrane proteins, essential for their proper expression and function. Recent studies demonstrated that transmembrane (TM) domains of the components of these receptors play a critical role in their association and function. ...
journal_title：Immunology letters
pub_type： 杂志文章,评审
doi：10.1016/s0165-2478(98)00100-x
更新日期：1998-12-01 00:00:00
abstract：:Several immunological functions of B and T cells including IL-2 receptor expression on T cells were measured in 12-month-old Fisher-344 male rats maintained from 6 weeks of age on an ad libitum (AL) or a 40% food-restricted (FR) diet. Direct anti-SRBC plaque-forming cell (PFC) assays revealed a higher response in FR r...
journal_title：Immunology letters
pub_type： 杂志文章
doi：10.1016/0165-2478(89)90124-7
更新日期：1989-12-01 00:00:00
abstract：:Clinical symptoms of COVID-19 include fever, cough, and fatigue which may progress to acute respiratory distress syndrome (ARDS). The main hematological laboratory findings associated with the severe form of disease are represented by lymphopenia and eosinopenia which mostly occur in the elderly population characteriz...
journal_title：Immunology letters
pub_type： 杂志文章,评审
doi：10.1016/j.imlet.2021.01.001
更新日期：2021-01-06 00:00:00
abstract：:Circulating lymphocytes were enumerated in 25 patients with coeliac disease and in 24 healthy donors by immunofluorescent staining using monoclonal antibodies for T cell surface phenotypic markers T11 (mature), T4 (helper) and T8 (suppressor) or polyvalent antisera for surface immunoglobulins (B cells). Proportions of...
journal_title：Immunology letters
pub_type： 杂志文章
doi：10.1016/0165-2478(86)90119-7
更新日期：1986-08-01 00:00:00
abstract：:Among tumor necrosis factor (TNF) superfamily, TNF-related apoptosis inducing ligand (TRAIL) along with TNF-alpha and FasL is known as death ligand due to its selective cytotoxicity against transformed tumor cells. TRAIL can also induce alternative angiogenic and/or proinflammatory signals other than apoptosis, howeve...
journal_title：Immunology letters
pub_type： 杂志文章
doi：10.1016/j.imlet.2008.01.010
更新日期：2008-05-15 00:00:00
abstract：:The administration of protein antigens into earthworms Lumbricus terrestris and Eisenia foetida induces the formation of antigen-binding protein (ABP) with the maximum response occurring between days 4 and 8. High proteolytic activities observed both in coelomocytes and in coelomic fluids cause rapid antigen degradati...
journal_title：Immunology letters
pub_type： 杂志文章
doi：10.1016/0165-2478(94)90145-7
更新日期：1994-07-01 00:00:00
abstract：:ErbB2, a member of the EGF receptor family of tyrosine kinases is overexpressed on many tumor cells of epithelial origin and is the molecular target of trastuzumab (Herceptin), the first humanized antibody used in the therapy of solid tumors. Trastuzumab, which is thought to act, at least in part, by downregulating Er...
journal_title：Immunology letters
pub_type： 杂志文章
doi：10.1016/j.imlet.2005.11.018
更新日期：2006-04-15 00:00:00
abstract：PURPOSE:Benazepril, an angiotensin-converting enzyme (ACE) inhibitor, has been used to treat hypertension, congestive heart failure, and chronic renal failure. However, its biological activity and mechanism of action in inflammation are not fully identified. The present study was designed to determine the in vivo anti-...
journal_title：Immunology letters
pub_type： 杂志文章
doi：10.1016/j.imlet.2013.05.005
更新日期：2013-05-01 00:00:00
abstract：:H-2-linked gene(s) have been found to play a role in the quantitative regulation of response to human gamma-globulin (HGG) in mice selected for high or low antibody responsiveness to sheep erythrocytes. Unexpectedly, in a random genetically heterogeneous population of F2 interline hybrids, the gene(s) linked to the H-...
journal_title：Immunology letters
pub_type： 杂志文章
doi：10.1016/0165-2478(82)90111-0
更新日期：1982-11-01 00:00:00
abstract：:Heat-killed Saccharomyces cerevisiae (HKSC) is an agonist for Dectin-1, a major fungal cell wall β-glucan receptor. We previously reported that HKSC selectively enhances IgG1 production by LPS-activated mouse B cells. To determine if this IgG1 selectivity is caused by selective IgG1 class switching, we performed RT-PC...
journal_title：Immunology letters
pub_type： 杂志文章
doi：10.1016/j.imlet.2016.08.010
更新日期：2016-10-01 00:00:00
abstract：:Cytokine induced killer (CIK) cells have a powerful tumor cells killing activity both in vitro and in vivo and transfusion of these cells have become an adjuvant treatment for tumors. CIK cells are induced and amplified from peripheral blood mononuclear cells (PBMCs) with multiple cytokines. As CD4+CD25bri regulatory ...
journal_title：Immunology letters
pub_type： 杂志文章
doi：10.1016/j.imlet.2016.11.009
更新日期：2017-01-01 00:00:00
abstract：:In the following study we have analyzed cytokine secretion of T-cells of suicidal and non-suicidal depressed patients and healthy controls. It was found that T-cells of suicidal depressed patients have Th1 characteristics, while T-cells of non-suicidal depressed patients have Th2 characteristics. Th1 environment is as...
journal_title：Immunology letters
pub_type： 杂志文章
doi：10.1016/s0165-2478(98)00145-x
更新日期：1999-04-01 00:00:00
abstract：:Alpha-fetoprotein (AFP), an onco-fetal protein which binds specifically polyunsaturated fatty acids, has been shown to modulate arachidonic acid metabolism in a human T-cell line. In Jurkat lymphoma cells, AFP decreases the synthesis of prostaglandins and increases the release of arachidonic acid and leukotrienes. The...
journal_title：Immunology letters
pub_type： 杂志文章
doi：10.1016/0165-2478(87)90092-7
更新日期：1987-01-01 00:00:00
abstract：:In order to study the effect of interferon alpha on the levels of acute phase complement proteins in vivo, serum concentrations of C9 and C1-inhibitor (C1-INH) were measured in patients with chronic hepatitis C before and 3 months after the beginning of interferon alpha2b therapy. Serum levels of the activation produc...
journal_title：Immunology letters
pub_type： 杂志文章
doi：10.1016/s0165-2478(00)00183-8
更新日期：2000-05-01 00:00:00
abstract：:We have investigated the cellular responses of guinea-pig macrophages to human C4a. C4a induced a biphasic Ca2+ mobilization; a rapid temporary Ca2+ mobilization from intracellular Ca2+ pool followed by a weak Ca2+ influx of extracellular Ca2+. Although the C4a-treated macrophages did not respond again to C4a, that is...
journal_title：Immunology letters
pub_type： 杂志文章
doi：10.1016/0165-2478(93)90104-a
更新日期：1993-06-01 00:00:00
abstract：:Although there is growing evidence that NKT cells play an important role in various immune responses through the invariant T cell receptor, other cell surface molecules responsible for their function are not fully understood. Here we study the role of ICOS, the third member of the CD28 family of costimulatory receptor...
journal_title：Immunology letters
pub_type： 杂志文章
doi：10.1016/j.imlet.2009.11.002
更新日期：2010-01-18 00:00:00
abstract：:We have examined the effect of different monoclonal antibodies (MAb) to the CD11/CD18 family of surface antigens on the production of superoxide anion by phorbol myristate acetate (PMA)-differentiated U-937 cells upon stimulation with concanavalin A (Con A). The anti-CD11c MAb HC1/1 displayed a significant inhibition,...
journal_title：Immunology letters
pub_type： 杂志文章
doi：10.1016/0165-2478(89)90079-5
更新日期：1989-02-01 00:00:00
abstract：:The immunosuppressant rapamycin is known to be a potent inhibitor of cytokine driven proliferation of T-lymphocytes and other cell types. Here we have examined the effect of rapamycin on the myeloblastic cell line M1 which responds to interleukin-6 (IL-6) with growth arrest and monocytoid differentiation. Single-agent...
journal_title：Immunology letters
pub_type： 杂志文章
doi：10.1016/s0165-2478(97)00110-7
更新日期：1997-11-01 00:00:00
abstract：:At least three B cell subsets, B-1a (Ly-1B), B-1b and B-2, are present in the mouse periphery. B-1a and B1-b cells represent a small population in the adult spleen and are abundant in the peritonial and pleural cavities. It has been demonstrated in our laboratory that B-1b cells spontaneously proliferated in stationar...
journal_title：Immunology letters
pub_type： 杂志文章
doi：10.1016/s0165-2478(02)00266-3
更新日期：2003-03-03 00:00:00
abstract：:DNA-dependent RNA polymerase was partially purified from wheat germ extract and tested for inhibition by antinuclear autoantibodies from the sera of patients with connective tissue diseases. The enzyme was inhibited by anti-DNA and by autoantibodies to the nuclear ribonucleoprotein nRNP. Autoantibodies to other ribonu...
journal_title：Immunology letters
pub_type： 杂志文章
doi：10.1016/0165-2478(83)90093-7
更新日期：1983-03-01 00:00:00
abstract：BACKGROUND:Diabetic neuropathy (DN) is one of the microvascular complications of diabetes that leads to peripheral sensorimotor and autonomic nervous system damages. In this study, we first examined the expression of lncRNA NEAT-1 and its downstream microRNAs, miR-183-5p, miR-433-3p, and then examined mRNA expression o...
journal_title：Immunology letters
pub_type： 杂志文章
doi：10.1016/j.imlet.2021.01.007
更新日期：2021-01-25 00:00:00
abstract：:When the random polymer (Glu, Phe)n was added to primary lymph node T cell cultures from mice immunized with (Glu, Lys, Ala) and other immunogens, significant inhibition of [3H]thymidine incorporation was noted. A similar addition of (Glu, Phe)n to murine T cell lines (Fathman) from the above reacting lymph nodes led ...
journal_title：Immunology letters
pub_type： 杂志文章
doi：10.1016/0165-2478(87)90160-x
更新日期：1987-12-01 00:00:00
abstract：:Chagas' disease is accompanied by severe anemia and oxidative stress, which may contribute to mortality. In this study, we investigated the role of 5-lipoxygenase (5-LO) in the control of parasitism and anemia associated with oxidative damage of erythrocytes in experimental Trypanosoma cruzi infection. Wild-type C57BL...
journal_title：Immunology letters
pub_type： 杂志文章
doi：10.1016/j.imlet.2009.02.002
更新日期：2009-03-24 00:00:00
abstract：:Abnormal activation of the transcriptional factor STAT3 (signal transducer and activator of transcription 3) was recently associated with Alzheimer Disease (AD). STAT3 phosphorylation is critical for cytokine secretion linked to neuroinflammation. Moreover, STAT3 may act as a transcriptional regulator of BACE1 (β-APP ...
journal_title：Immunology letters
pub_type： 杂志文章
doi：10.1016/j.imlet.2020.10.004
更新日期：2020-12-01 00:00:00
abstract：:The question is still unresolved whether in insulin-dependent (type I) diabetes T-lymphocytes mediate an autoimmune response towards pancreatic islets. We now present direct evidence in an animal model for autoimmune T-lymphocytes with specificity for islet antigens. Mice of strain C57BL/6 were immunized repeatedly wi...
journal_title：Immunology letters
pub_type： 杂志文章
doi：10.1016/0165-2478(85)90090-2
更新日期：1985-01-01 00:00:00
abstract：:The effects of interferon-alpha (IFN-alpha), INF-gamma, transforming growth factor beta (TGF-beta) and dexamethasone on low-affinity Fc receptors for IgE (Fc epsilon R2/CD23) expression on a human eosinophilic leukemia cell line, Eol-3, were examined. Fc epsilon R2/CD23 expression was enhanced by both IFN-alpha and IF...
journal_title：Immunology letters
pub_type： 杂志文章
doi：10.1016/0165-2478(90)90201-z
更新日期：1990-09-01 00:00:00
abstract：:Nervous and immune systems share specific recognition molecules for signals that originate in both systems. The information substances are polypeptides and their receptors. They comprise the multi-directional information exchange network whereby brain and nervous system function including mood and emotion can be integ...
journal_title：Immunology letters
pub_type： 杂志文章,评审
doi：10.1016/0165-2478(87)90171-4
更新日期：1987-12-01 00:00:00
