Abstract:
:A variety of thymus hormone preparations, as well as drugs known to perturb cell differentiation, were tested for their ability to induce nonfunctional cortical thymocytes to become functional precursor cells. Murine cortical thymocytes, defined as the high peanut agglutinin (PNA) binding or as the low H-2K, major [86%] thymocyte subpopulation, were isolated by fluorescence-activated cell sorting. Their function was assessed in a high cloning efficiency, growth factor saturated, concanavalin A-stimulated limit-dilution culture system, determining the number of precursors of extended clones (PTL-p), or determining with a lectin-mediated tumor-lysis readout the number of precursors of cytolytic clones (CTL-p). The hormone preparations tested were crude or partially purified culture supernatants from thymus "epithelial" monolayers (TES), soluble extracts of thymic nonlymphoid tissue (STF), semipure thymus humoral factor (THF), and the pure peptides thymopoietin 32-36 (TP5) and "facteur thymique sérique" (FTS). These preparations were either added directly to the limit dilution cultures, or were first preincubated with the cells, which were then subjected to limit-dilution culture. In no case did the hormone preparations cause any increase in the level of PTL-p or CTL-p in the PNA+ or low H-2K thymocyte population, even though a conversion of only a few percent to functional cells could have been detected. Two possible explanations are considered. One is that the main function of these materials is to control post-thymic peripheral T cells, rather than to induce intrathymic differentiation. Another is that the typical cortical thymocyte is beyond the stage at which thymocytes can be induced by hormones, a view that is strengthened by the failure of either 5-azacytidine or the phorbol ester 12-O-tetradecanoyl phorbol 13-acetate to activate these cells. In this latter explanation the true intrathymic target of hormone action may be an earlier, and very minor, thymus subpopulation.
journal_name
Cell Immunoljournal_title
Cellular immunologyauthors
Andrews P,Shortman K,Scollay R,Potworowski EF,Kruisbeek AM,Goldstein G,Trainin N,Bach JFdoi
10.1016/0008-8749(85)90243-6subject
Has Abstractpub_date
1985-04-01 00:00:00pages
455-66issue
2eissn
0008-8749issn
1090-2163pii
0008-8749(85)90243-6journal_volume
91pub_type
杂志文章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::Putative monocytic myeloid-derived suppressor cells (mMDSC; lineage-HLA-DR-/lo) were generated in 7-day cultures from normal rhesus macaque bone marrow (BM) cells in GM-CSF and IL-6. Three subsets were identified based on their differential expression of CD14, CD33, CD34 and CD11b. Following flow sorting, assessment o...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/j.cellimm.2018.04.013
更新日期:2018-07-01 00:00:00
abstract::This study was conducted on human K562 lymphocytes to investigate the mechanisms implicated in the regulation of the serotonin transport process. The uptake of serotonin in these cells was saturable (Km, 3.37 microM; Vmax, 2.03 nmol/10(6) cells) and Na+ dependent; isoosmotic replacement of Na+ with choline chloride in...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1006/cimm.1996.0242
更新日期:1996-09-15 00:00:00
abstract::Murine peritoneal macrophages (M phi), activated in vivo or in vitro, remarkably inhibited the uptake of thymidine by a lens epithelial cell line, while resident M phi, or M phi induced by thioglycollate, exhibited much lower or no cytostatic capacity. The target cells were partially protected from the cytostatic acti...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(84)90222-3
更新日期:1984-01-01 00:00:00
abstract::Macrophages can be divided into two groups as M1 and M2 phenotype. Our results and other groups revealed that IFN-γ can up-regulate the IDO expression and differentiate THP-1 cells to M1 phenotype. Therefore we hypothesized that IDO may play potential roles in macrophage differentiation. Interesting, our results indic...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/j.cellimm.2014.02.005
更新日期:2014-05-01 00:00:00
abstract::7 anterior gradient homolog 2 (AGR2)-inhibited different molecular mutual positive correlation network was constructed in lung adenocarcinoma compared with human normal adjacent tissues by 17 overlapping molecules of 358 GRNInfer and 19 Pearson (AGR2 CC⩽-0.25). Based on GO, KEGG, GenMAPP, BioCarta and disease database...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/j.cellimm.2014.05.008
更新日期:2014-07-01 00:00:00
abstract::Activated macrophages synthesize and release numerous tumoricidal soluble factors that can be divided into receptor- or nonreceptor-dependent agents. Tumor necrosis factor (TNF) would be an example of the former. In our experimental model the killing of EL4 thymoma cells by syngeneic activated macrophages involves, bu...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(90)90116-9
更新日期:1990-04-15 00:00:00
abstract::We compared macrophage binding and killing of F5b cells to the binding and killing of P815 mastocytoma cells and to several other nontransformed and transformed cell lines. Formalin fixation of elicited or activated macrophages did not affect binding of F5b or 3T3 cells but did abrogate binding of P815 cells. However,...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(91)90190-m
更新日期:1991-03-01 00:00:00
abstract::We have examined noninduced cytotoxicity of mouse gut associated and peripheral lymphoid tissues for a wide variety of syngeneic as well as allogeneic cell lines and lymphoblasts. Lymphoid cells from Peyer's patches were found to lyse these targets in a 3-hr chromium release assay whereas lymphoid cells from intestina...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(86)90158-9
更新日期:1986-09-01 00:00:00
abstract::Immunocytochemical staining procedures were combined with computer-aided image analysis to quantitate the relative intracellular production of tumor necrosis factor-alpha (TNF) within individual macrophages. Optimal conditions for time and methods for the activation of TNF production, fixation of cells for optimal imm...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(90)90278-y
更新日期:1990-10-15 00:00:00
abstract::The MCA 102 sarcoma has been defined by a variety of immunologic studies as a tumor lacking intrinsic immunogenicity. Nevertheless, we have recently demonstrated the feasibility of generating therapeutically effective lymphocytes for adoptive immunotherapy of this tumor. Procedures to achieve this required in vivo pri...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(90)90201-2
更新日期:1990-08-01 00:00:00
abstract::Investigation into the mechanism of action of vaccine adjuvants provides opportunities to define basic immune principles underlying the induction of strong immune responses and insights useful for the rational development of subunit vaccines. A novel HIV vaccine composed of plasmid DNA-encoding p55 gag formulated with...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/j.cellimm.2003.09.003
更新日期:2003-09-01 00:00:00
abstract::A new mechanism for regulation of delayed-type hypersensitivity (DTH) was investigated. The subcutaneous injection without adjuvant of syngeneic epidermal Langerhans' cells (LC) pulsed with keyhole limpet hemocyanin (KLH) into BALB/c mice gave rise to DTH upon challenge of the ear with the same antigen. When such cell...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1006/cimm.1993.1279
更新日期:1993-11-01 00:00:00
abstract::The mechanism of suppression of experimental allergic encephalomyelitis (EAE) induced in Lewis rats by pretreatment with myelin basic protein (MBP) coupled to syngeneic spleen leukocytes (SL) was examined. Studies on the kinetics of the tolerance induction showed that pretreatment with MBP-SL suppressed EAE if given 7...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(84)90159-x
更新日期:1984-10-15 00:00:00
abstract::Nonenzymatic glycation of amino groups of DNA bases by reducing sugars can generate advanced glycation end products (AGEs). Cellular formation of AGEs under normal physiology is continuously scanned and removed by efficient system in the cells. However, excess formation and accumulation of AGEs may be cause or consequ...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/j.cellimm.2014.12.007
更新日期:2015-02-01 00:00:00
abstract::We investigated the role of IL-12 in regulating IL-2 and IFN-gamma production in primary culture of human T cells. Addition of neutralizing antiserum against the 40-kDa subunit of IL-12 to PHA-stimulated PBMC markedly reduced both IFN-gamma protein production and mRNA accumulation and stability. Moreover, concurrent t...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1006/cimm.1994.1303
更新日期:1994-12-01 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::Mice from strains showing either phenotypical expression of Bcg gene (C57BL/6, BALB/c, DBA/1, and (C57BL/6 X DBA/2)/F1, CBA, A/J, DBA/2) were infected intravenously with 10(7) Mycobacterium lepraemurium (MLM). The number of acid-fast bacilli (AFB) within the spleens, the ability of spleen cells to produce in vitro int...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(85)90026-7
更新日期:1985-03-01 00:00:00
abstract::The oral administration of myelin basic protein (MBP) to Lewis rats prior to an encephalitogenic challenge resulted in total inhibition or a significant delay in the onset of experimental autoimmune encephalomyelitis (EAE). In vitro lymphocyte proliferative responses to MBP were significantly decreased in MBP-fed rats...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(88)90305-x
更新日期:1988-04-01 00:00:00
abstract::To investigate the consequences of food allergy in adipose tissue and metabolism, we used a murine model in which mice have been sensitized subcutaneously with ovalbumin and further received antigen-containing diet. Allergic mice presented a significant weight loss 7 days after oral challenge with a concomitant decrea...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/j.cellimm.2011.05.008
更新日期:2011-01-01 00:00:00
abstract::With DNA vaccines, it is important to monitor the movement of transfectants and to overcome immune deviations. We used a pCMV-LacZ plasmid (expressing β-galactosidase) and a pcDNA-hNIS plasmid (expressing the human sodium/iodide symporter [hNIS] gene) as non-secreted visual-imaging markers. Transfectants carrying the ...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/j.cellimm.2018.04.003
更新日期:2018-07-01 00:00:00
abstract::BST2 is a type II transmembrane protein that had been initially identified as a surface molecule expressed on terminally differentiated B cells. Here, we characterize the expression of BST2 in human endothelial cells, HUVECs. IFN-γ, among various inflammatory stimuli, dramatically upregulates BST2 expression in HUVECs...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/j.cellimm.2010.10.011
更新日期:2011-01-01 00:00:00
abstract::Poxviruses are a large, complex group of highly successful pathogens that cause disease in humans and other animals. They encode several proteins postulated to be involved in the evasion of host immunity and therefore serve as excellent models for understanding virus-host interaction during the early stages of viral i...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1006/cimm.1995.1086
更新日期:1995-05-01 00:00:00
abstract::We previously demonstrated that injection of a high dose (4 X 10(9] of sheep erythrocytes (SRBC) into C57BL/6 mice results in the generation of splenic B cells (plastic nonadherent, Thy-1- and Ig+) which, when transferred to normal syngeneic recipients, subsequently induce antigen-specific suppressor T cells to suppre...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(84)90242-9
更新日期:1984-01-01 00:00:00
abstract::Prior studies have shown that intraperitoneal (ip) injection of 25 IU of human rIL-2 can effectively modulate in vivo immune reactivity to thymus-dependent and thymus-independent type 2 immunogens in Xenopus laevis, the South African clawed toad, but is less successful at affecting toad cells in vitro. Here we compare...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1006/cimm.1994.1224
更新日期:1994-08-01 00:00:00
abstract::The cell-averaged microviscosity of intact murine peritoneal mononuclear phagocytes in various stages of activation was assessed by quantifying fluorescent depolarization of 1,6-diphenyl-1,3,5-hexatriene. Macrophages activated in vivo with Mycobacterium bovis, strain BCG, were significantly more fluid than resident pe...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(87)90026-8
更新日期:1987-02-01 00:00:00
abstract::The phenotype, T-cell antigen receptor (TCR) usage and specificity of intestinal intraepithelial lymphocytes (IEL), and hybridomas derived from IEL have been examined. In young conventionally reared mice, approximately 50% of the IEL express TCR alpha beta and 50% express TCR gamma delta, although there is considerabl...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1006/cimm.1993.1293
更新日期:1993-12-01 00:00:00
abstract::The membrane phenotype of T cells involved in delayed hypersensitivity (DH), protective immunity, and suppression of delayed hypersensitivity to herpes simplex virus (HSV) has been determined. T cells from immune lymph nodes transferring DH and antiviral immunity to normal recipients were characterized as Lyt 1+2-. Th...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(83)90332-5
更新日期:1983-02-01 00:00:00
abstract::pp125FAK is a novel protein tyrosine kinase associated with focal adhesions. It has been shown that ligation of VLA beta 1 integrins on a number of cell types enhanced tyrosine phosphorylation and kinase activity of pp125FAK. Cellular transformation by retroviral oncogene products or mitogenic neuropeptides also resul...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1006/cimm.1995.1002
更新日期:1995-03-01 00:00:00
abstract::Cluster of differentiation ([CD]) 19 antigens are B-cell-specific molecules expressed on virtually all human cells of the B-lymphocyte lineage except plasma cells. We produced a new anti-CD19 monoclonal antibody (McAb), CLB-CD19, that was used to study the role of CD19 molecules in B-cell activation. Anti-CD19 McAb in...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(89)90385-7
更新日期:1989-02-01 00:00:00