Abstract:
:Attempts have been made to induce cytolytic T cells to kill target cells that do not express the appropriate target molecules by crosslinking the T cells and the target cells in various ways. One successful strategy has been to use heteroconjugates or bispecific monoclonal antibodies reacting with T cell molecules with activating properties (e.g., mab directed to CD3/TCR) and target cell surface antigens. In this report we show that Staphylococcal enterotoxins (SE) direct human T lymphocytes to execute cytotoxicity toward MHC class II-expressing Raji cells, but not against MHC class II-deficient Raji mutant RJ 2.2.5. Both HLA-DR+ and HLA-DR- effector T lymphocytes are effective in the killing of Raji cells coated with SE. The Staphylococcal enterotoxin-dependent cell-mediated cytotoxicity (SDCC) is a rapid T lymphocyte-mediated cytolytic mechanism killing the targets within an hour of incubation. HLA-DR+ target cells are sensitized to be killed within minutes of incubation with picomolar concentrations of SE. SE-sensitized Raji cells remain targets for SDCC after overnight culture at 37 degrees C, demonstrating that the sensitive state is relatively stable. SEA- and SEB-selective cytolytic T cell lines were established to illustrate the clonal variability of SDCC effectors with respect to SE specificity. We also demonstrate that autologous monocytes and activated T lymphocytes as well as B lymphocytes and freshly prepared HLA-DR+ leukemic cells are excellent targets in SDCC.
journal_name
Cell Immunoljournal_title
Cellular immunologyauthors
Hedlund G,Dohlsten M,Lando PA,Kalland Tdoi
10.1016/0008-8749(90)90218-gsubject
Has Abstractpub_date
1990-09-01 00:00:00pages
426-34issue
2eissn
0008-8749issn
1090-2163pii
0008-8749(90)90218-Gjournal_volume
129pub_type
杂志文章abstract::Normal chondrocytes display susceptibility to lysis by natural killer (NK) cells and this phenomenon may play a role in some inflammatory cartilage disorders. The mechanisms of chondrocyte recognition and killing by NK cells remain unclear. Using flow cytometry and immunohistochemical staining we found that normal hum...
journal_title:Cellular immunology
pub_type: 杂志文章
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更新日期:2013-09-01 00:00:00
abstract::The third complementarity determining region (CDR3) is the most variable part of alpha beta T cell receptors (TCR) and represents the putative antigen contacting site. To identify parameters determining the structural diversity of the CDR3 region, the CDR3 length distributions of 66 BV-J combinations in peripheral CD4...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1006/cimm.1996.0071
更新日期:1996-03-15 00:00:00
abstract::We have studied the effects of prostaglandin E2 (PGE2) and cholera toxin, two modulators of adenylyl cyclase, and 8-bromo cAMP (8-BrcAMP) on various parameters of lymphocyte activation using the human T cell line Jurkat. Our results show that PGE2 and cholera toxin inhibit, in a dose-related manner, the phytohemagglut...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(90)90035-p
更新日期:1990-07-01 00:00:00
abstract::At concentrations as low as 10(-7) M, the cardiotonic glycosteroid ouabain, a specific inhibitor of the membrane Na+, K+-ATPase, is known to inhibit in vitro human lymphocyte proliferation produced in mixed lymphocyte cultures or induced by various stimulating agents (PHA, Con A, PWM, soluble antigens), while mouse ly...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(84)90314-9
更新日期:1984-02-01 00:00:00
abstract::T cell hybridomas that are deathless upon TCR crosslinking were generated from lpr mice. The deathless hybridomas (1.4 and 5D5) expressed extremely low Fas even after anti-CD3 activation, whereas activation-induced cell death (AICD) was observed for Fas-expressing hybridomas. The deathless hybridomas were activated to...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1006/cimm.1996.0039
更新日期:1996-02-01 00:00:00
abstract::Evidence is presented that rat serosal mast cells and cells of the rat basophilic leukemia line, RBL-1, each contain a calcium-activated, phospholipid-dependent protein kinase. The enzymes are very similar in their activation requirements to the calcium-dependent enzymes termed protein kinase Cs in brain. The enzyme i...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(86)90098-5
更新日期:1986-12-01 00:00:00
abstract::The regulation of the migratory capacity of Percoll-purified large granular lymphocytes (LGL) into nitrocellulose filters was studied in a 2-hr assay with the use of modified Boyden chambers. Compounds that stimulate the natural killer cytotoxic function of LGL, such as interferons (natural beta, recombinant alpha A, ...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(86)90198-x
更新日期:1986-08-01 00:00:00
abstract::Due to their immunomodulatory properties, adipose tissue (AT) and Wharton's Jelly (WJ) constitute valuable alternatives to BM as sources of MSCs for managing graft-versus-host disease. To ensure the efficiency of AT- and WJ-MSCs implies the characterization of their immunomodulatory functions in comparison to those of...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/j.cellimm.2010.06.006
更新日期:2010-01-01 00:00:00
abstract::Dendritic cells (DCs) link the sensing of the environment by the innate immune system to the initiation of adaptive immune responses. Accordingly, DCs are considered to be a major target in the development of immunomodulating compounds. In this study, the effect of niclosamide, a Food and Drug Administration-approved ...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/j.cellimm.2013.12.006
更新日期:2014-03-01 00:00:00
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journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(85)90345-4
更新日期:1985-11-01 00:00:00
abstract::Human skin contains epidermal Langerhans cells (LCs) and dermal dendritic cells (DCs) that are key players in induction of adaptive immunity upon infection. After major burn injury, suppressed adaptive immunity has been observed in patients. Here we demonstrate that burn injury affects adaptive immunity by altering bo...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/j.cellimm.2011.01.007
更新日期:2011-01-01 00:00:00
abstract::Activation of lck-fyn kinases during T cell receptor signaling leads to Vav phosphorylation, activation of downstream targets including Rac1, and a transient decline in ezrin and moesin phosphorylation. We have shown that age increases Rac1 activity and lowers ezrin and moesin phosphorylation in resting mouse CD4 cell...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/j.cellimm.2009.06.001
更新日期:2009-01-01 00:00:00
abstract::In this study, the major histocompatibility complex-unrestricted cytotoxic effectors elicited in human peripheral blood mononuclear cells (PBMC) by a mannoprotein (MP) component from the cell wall of the human indigenous microorganism Candida albicans have been compared with those obtained by stimulation with interleu...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(89)90033-6
更新日期:1989-07-01 00:00:00
abstract::The lineage of lymphokine-activated killer (LAK) cells is poorly understood. To examine the relationship between LAK and natural killer (NK) cells we utilized two congenitally immunodeficient mice, namely severe combined immunodeficient (scid) and athymic (nude) mice that lack T cells but have normal NK cells. LAK act...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(89)90190-1
更新日期:1989-04-15 00:00:00
abstract::Several lines of evidence suggest that nitric oxide (NO), generated through nitric oxide synthase (NOS) by cleavage of terminal guanidino nitrogen from L-arginine, mediates tumor cell killing by mononuclear phagocytes. Natural killer (NK) cells are cytotoxic effector cells that lyse a variety of tumor and virus-infect...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1006/cimm.1994.1215
更新日期:1994-08-01 00:00:00
abstract::Upregulation of immunoglobulin D-specific receptors (IgD-R) on CD4+ T cells may facilitate their interaction with specific carbohydrate moieties uniquely associated with membrane IgD on B cells. Previous studies have shown that upregulation of IgD-R facilitates cognate T-B cell interactions by mediating bidirectional ...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1006/cimm.2000.1747
更新日期:2001-02-01 00:00:00
abstract::Histidine-proline-rich glycoprotein (HPRG) is a plasma protein which binds to a specific receptor on T-lymphocytes and represses T-cell activation and proliferation. In the presence of Concanavalin A (Con A), HPRG causes human T-lymphoblastic MOLT-3 cells and a fraction of normal human peripheral blood lymphocytes to ...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1006/cimm.1993.1311
更新日期:1993-12-01 00:00:00
abstract::The glycobiology of the immune response is a topic that has garnered increased attention due to a number of key discoveries surrounding IgG function, the specificity of some broadly neutralizing anti-HIV antibodies, cancer immunoregulation by galectin molecules and others. This review is the opening article in a Speci...
journal_title:Cellular immunology
pub_type: 杂志文章,评审
doi:10.1016/j.cellimm.2018.04.010
更新日期:2018-11-01 00:00:00
abstract::Idiotypic immunoglobulin, which can be considered to bear tumour-associated antigens in the context of B-cell lymphoma, has been obtained from the splenic A31 tumour, purified, and used to immunise syngeneic mice. On subsequent exposure to a lethal challenge of lymphoma cells, the mice showed no overt tumour developme...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(91)90007-x
更新日期:1991-01-01 00:00:00
abstract::Functional helper and suppressor hybridomas were constructed from fractionated Type II NFR/nude mouse splenocytes which resemble precursors of T cells. After carrier priming with rabbit erythrocytes (RE), splenocytes from Type II NFR/nude mice were fractionated on nylon wool columns. Cells from two distinct fractions ...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(84)90329-0
更新日期:1984-12-01 00:00:00
abstract::The molecular mechanism responsible for the age-dependent decline of natural killer (NK) cell response was examined. The responses of NK cells to poly(I:C), Con A, and LPS were compared between the young and the aged animals. We observed that both basal and induced NK cell activity declined with age. To further determ...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1006/cimm.1996.0271
更新日期:1996-11-01 00:00:00
abstract::The purpose of this project was to characterize changes in murine T lymphocyte subpopulations during thymic atrophy induced by protein malnutrition and to determine the role of elevated serum corticosterone in this process. A suitable animal model was generated by placing mice on protein-sufficient (PS) and protein-de...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1006/cimm.1993.1105
更新日期:1993-04-15 00:00:00
abstract::A series of Lyt 2+, trinitrophenyl (TNP)-specific T-cell lines are shown to lyse 51Cr-labeled target cells in an antigen-specific, H-2-restricted fashion in a 4-hr assay. These cells also produce lymphotoxin, in addition to other factors, upon stimulation with TNP-haptenated syngeneic splenocytes. A technique for intr...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(85)90389-2
更新日期:1985-06-01 00:00:00
abstract::We and other investigators have previously demonstrated that mycoplasmas induce macrophage-mediated lysis of tumor cells, but the mechanism responsible for this process had, thus far, not been clarified. We now report that addition of either viable or heat-killed Mycoplasma orale to murine macrophages induces a cytoly...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(89)90012-9
更新日期:1989-06-01 00:00:00
abstract::To determine the relative contributions of DC subsets in the development of protective immunity to Listeria monocytogenes we examined the relationship between maturation, bacterial burden, and T cell priming capacity of four well characterized subsets of splenic DC following infection with Lm. CD8α(+), CD4(+), and CD8...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/j.cellimm.2011.03.001
更新日期:2011-01-01 00:00:00
abstract::The humoral response to encapsulated BSA appears to be a classical TD antigen response with a high ratio of IgG to IgM, whereas that to covalently-linked antigen is more complex, characterized by an enhanced synthesis of IgM, leading to an equal production of IgM and IgG. In a recent paper, we observed that surface-li...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(89)90266-9
更新日期:1989-10-01 00:00:00
abstract::In previous studies, the murine SaI (A/J derived, KkDd) sarcoma was transfected with the allogeneic MHC class I H-2Kb gene, and expressed high levels of H-2Kb antigen. Contrary to expectations, the tumor cells expressing the alloantigen (SKB3.1M tumor cells) were not rejected by autologous A/J mice. Because these resu...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(91)90319-7
更新日期:1991-05-01 00:00:00
abstract::A monoclonal anti-actin antibody, 2C9, was used to study the distribution of an actin-like cell-surface antigen (hereafter termed actin) on a lymphoblastoid cell line LA350 and on human peripheral blood lymphocytes. It was determined that 8-40% of LA350 cells and 3-15% of peripheral blood lymphocytes from healthy dono...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(86)90296-0
更新日期:1986-04-01 00:00:00
abstract::Monoclonal antibody (mAb) G7 has been developed and appears to recognize a triggering structure on porcine natural killer (NK) cells and granulocytes. G7 mAb binds to approximately 13% of lymphocytes, 70% of monocytes, and greater than 95% of granulocytes. G7 mAb does not react with B cells. G7 mAb immunoprecipitates ...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(92)90212-8
更新日期:1992-04-01 00:00:00
abstract::The internalization of surface immunoglobulin (Ig) by B lymphocytes is the first step in the antigen-presenting function performed by these cells. Mature B cells coexpress on their surface IgM and IgD. At this time, there is controversy over whether these two isotypes serve different functions in the antigen-presentin...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(89)90305-5
更新日期:1989-10-15 00:00:00