Abstract:
:Some further aspects of B-lymphocyte-promotor factor (B-LPF) activity have been studied. This activity was present in the supernatants of certain helper-T-cell lines, and it induced polyclonal activation of Ig+ B cells into Ig-secreting cells. It was found that B-LPF induced polyclonal, terminal B-cell differentiation (1) in T-cell- and macrophage-depleted spleen cell populations, (2) in both Lyb-5- and Lyb-5+ cells as well as in small and blast-like splenic B cells, and (3) in normal rather than memory B cells. B-LPF function was neither restricted to major histocompatibility complex gene products nor to immunoglobulin allotypes. B-LPF-like activity was also produced by some B-cell lymphomas/hybrids and by the P388-D1 macrophage line. B-LPF activity was found in three MW fractions: (I) greater than 180,000 (pI greater than 7.0 and 4.5-5.5); (II) 50,000-70,000 (pI greater than 7.0; 6.0-6.5, and 4.5-5.5); and (III) 10,000-15,000 (pI greater than 7.0). All three MW forms of B-LPF activity carried antiserum 6036-defined and AB-1.9.3 monoclonal antibody-defined determinants, and they reacted with chicken gammaglobulin (CGG)-Sepharose but not with human serum albumin-Sepharose. These data indicate that the three MW forms of B-LPF activity are associated/dissociated forms of a 10,000-15,000 MW form (subunit) rather than three different molecular species with B-LPF activity. A comparative study between antigen-specific helper factors and B-LPF was hampered by the finding that the helper-T-cell hybridomas used (e.g., T85-109-45/1) only produced B-LPF in our hands. Previously, it has been described that these helper-T-cell hybrids produced CGG-specific, I-Ak-restricted helper factors. However, one surprising observation was that B-LPF produced by both T85 hybrid cells and L12 T lymphoma cells was absorbed and could be eluted from CGG-Sepharose columns. The relationship of B-LPF to other nonspecific and apparently specific T-helper-cell products is discussed in particular in the light of the observations that many immunologically active molecules are built up from 10,000-12,000 molecular weight domain-like polypeptide structures.
journal_name
Cell Immunoljournal_title
Cellular immunologyauthors
Reininger L,Fueri J,Boned A,Prat M,Landolfo S,Rubin Bdoi
10.1016/0008-8749(85)90067-xsubject
Has Abstractpub_date
1985-04-15 00:00:00pages
85-104issue
1eissn
0008-8749issn
1090-2163pii
0008-8749(85)90067-Xjournal_volume
92pub_type
杂志文章abstract::Arriving at an understanding of the role of suppressor T-cells (regulatory T-cells, CD4(+)CD25+) depends on whether their functional repertoire is somatically selected to be anti-Self or anti-Nonself. Immunologists are ambivalent; often publications espousing opposite views share an author. Here the arguments are deta...
journal_title:Cellular immunology
pub_type: 杂志文章,评审
doi:10.1016/j.cellimm.2004.02.004
更新日期:2004-02-01 00:00:00
abstract::Altered neutrophil function may contribute to the development of AIDS during the course of HIV infection. It has been described that Nef, a regulatory protein from HIV, can modulate superoxide production in other cells, therefore altered superoxide production in neutrophils from HIV infected patients, could be seconda...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/j.cellimm.2010.03.012
更新日期:2010-01-01 00:00:00
abstract::Engraftment of stem cell-enriched donor marrow implanted in the thymus of a foreign host might facilitate acceptance of donor-specific organ or tissue grafts. To test this hypothesis, allogeneic and xenogeneic CD34+ marrow cells from unrelated adult male baboons and humans were injected intrathymically in eight infant...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1006/cimm.1997.1194
更新日期:1997-11-01 00:00:00
abstract::Mice repeatedly immunized with the methanol extraction residue fraction of tubercle bacilli (MER) in incomplete Freund's adjuvant produced high titers of circulating antibodies against MER, as assessed by the enzyme-linked immunosorbent assay (ELISA) method. Spleen cells derived from these animals failed to respond to...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(85)90021-8
更新日期:1985-05-01 00:00:00
abstract::We compared TLR responsiveness in PBMC from HIV-1-infected and uninfected individuals using the TLR agonists: TLR7 (3M-001), TLR8 (3M-002), and TLR7/8 (3M-011). Activation and maturation of plasmacytoid dendritic cells (pDC) were measured by evaluating CD86, CD40, and CD83 expression and myeloid dendritic cell (mDC) a...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/j.cellimm.2008.01.007
更新日期:2007-11-01 00:00:00
abstract::This report describes a model for investigating the role of the thymus in regulating natural killer (NK) cell activity in vivo. Evidence is presented that the thymus can regulate NK cells, and that at least some NK cells can develop without thymic help. Marrow from thymectomized rats depleted of circulating T cells by...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(85)90201-1
更新日期:1985-02-01 00:00:00
abstract::We have analyzed the effect of cyclosporin-A (CsA) on the proliferative and cytotoxic responses induced by mixed-lymphocyte cultures (MLC-s) on low and high density T lymphocytes. Allogeneic stimulation had a different impact on the two subsets. Proliferative and cytotoxic responses were inversely correlated; i.e., hi...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(86)90100-0
更新日期:1986-12-01 00:00:00
abstract::Autoimmune regulator (Aire) is a transcriptional activator that regulates the ectopic expression of many tissue-restricted antigens in medullary thymic epithelial cells, and that has an important role in the negative selection of autoreactive T cells. However, the roles of Aire expression in peripheral lymphoid tissue...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/j.cellimm.2011.05.002
更新日期:2011-01-01 00:00:00
abstract::Blood and tissue eosinophilia is obtained when mice pretreated with cyclophosphamide (CY) and sensitized with picryl chloride are challenged on each ear lobe on day 13. To gain important insights into the cellular mechanisms involved in CY-induced eosinophilia in the contact-sensitivity reaction, we examined the cytok...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1006/cimm.2000.1677
更新日期:2000-08-01 00:00:00
abstract::Double immunofluorescence studies for terminal deoxynucleotidyl transferase (TdT) and leucocyte surface membrane antigens have been used to characterize the small subpopulation of TdT-positive cells in human peripheral blood. The predominant antigens demonstrated were those coded for by the major histocompatibility co...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(85)90223-0
更新日期:1985-02-01 00:00:00
abstract::The activities of the enzymes involved in purine nucleoside metabolism, adenosine deaminase (ADA), adenosine kinase (AK), purine nucleoside phosphorylase (PNP) and deoxycytidine kinase (deoxyCRK), were determined in mouse thymocytes at various stages of differentiation and maturation, and compared with those in other ...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(83)90168-5
更新日期:1983-12-01 00:00:00
abstract::Macrophages are highly plastic immune cells with temporally distinct transcriptome changes upon lipopolysaccride (LPS) activation. However, to what extent transcriptome reprogramming is mediated via spatial chromatin looping is not well studied. We generated high resolution chromatin interaction maps for LPS-stimulate...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/j.cellimm.2020.104148
更新日期:2020-09-01 00:00:00
abstract::Oral administration of protein antigens, such as ovalbumin, may result in induction of either tolerance or immunization. To avoid oral tolerance, there are new strategies to protect the antigens from degradation within the gastrointestinal tract and to allow them to reach inductive immunological sites. One such strate...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/j.cellimm.2008.07.001
更新日期:2008-01-01 00:00:00
abstract::The activation of large granular lymphocytes (LGLs)/natural killer (NK) cells with interleukin-2 (IL-2) has been shown to increase the ability of these cells to lyse NK-resistant tumor target cells. Activated LGLs, termed LAK (lymphokine-activated killer) cells, have been demonstrated to be of therapeutic value in viv...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(90)90132-b
更新日期:1990-05-01 00:00:00
abstract::The induction of ornithine decarboxylase (ODC) activity in lymphocytes is associated with activation and the initiation of cellular proliferation. ODC is also an essential component in tumor promotion. Phorbol myristic acetate (PMA) is a mitogen for lymphocytes, but can also promote tumor formation. Tumor promotion is...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(88)90015-9
更新日期:1988-04-15 00:00:00
abstract::Burn injury induces immune dysfunction and alters numerous physiological parameters. While clinical studies indicate that burn injury size profoundly impacts patient immune status, only limited experimental studies have systematically addressed its impact on immune functional parameters. In the present study, mice wer...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/s0008-8749(03)00024-8
更新日期:2002-11-01 00:00:00
abstract::TJ6 is a novel protein which has immunosuppressive activity and may have a functional role in fetal allograft survival during pregnancy. Initial studies indicated that when mice were treated with an anti-TJ6 binding mAb early in pregnancy, the pregnancies were completely ablated and that TJ6 expression is enhanced dra...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1006/cimm.1994.1114
更新日期:1994-04-15 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::Cells from the draining lymph nodes of DBA/2 mice bearing syngeneic intradermal P-815 tumors represent an excellent responding cell population for secondary stimulation in vitro, despite the virtual absence of response by spleen cells of the same animals. Cytotoxicity is a result of stimulation with intact mitomycin-t...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(83)90255-1
更新日期:1983-05-01 00:00:00
abstract::Supplementation of the diet with fish oil (FO) decreases growth of the Walker 256 tumor and decreases the cachexia associated with tumor-bearing. The mechanisms by which FO inhibits tumor growth and cachexia are unknown. Macrophages are very important in host defence against tumors since they produce several anti-tumo...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/j.cellimm.2004.12.001
更新日期:2004-09-01 00:00:00
abstract::Expression of certain autologous lymphocyte-activating antigenic determinants on the developing embryo is known to provide a stimulus for maternal anti-fetal autoproliferative responses. If left unregulated these responses could exert negative influences on the reproductive process by converting to autoaggressive form...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(89)90173-1
更新日期:1989-04-15 00:00:00
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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::Transformed murine fetal thymocyte cell lines were derived by incubating fetal thymic organ cultures with a v-myc/v-raf-containing retroviral construct in order to model developmental stages within the early triple negative (CD3-CD4-CD8-) thymocyte population. The resulting 10 cell lines had a lymphoid morphology, wer...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1006/cimm.1996.0170
更新日期:1996-07-10 00:00:00
abstract::Anti-CD3 mAb can activate T cells to help in B cell activation as detected by late events, such as maturation of B cells into Ig-secreting cells (IgSC), or by early events, such as B cell surface expression of the activation marker CD23. Two different anti-CD2 mAb each inhibited anti-CD3-induced T cell-dependent B cel...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(90)90269-w
更新日期:1990-10-15 00:00:00
abstract::We have previously used human Epstein Barr virus (EBV)-transformed B lymphoblastoid cell lines for the identification and purification of a novel cytokine, natural killer cell stimulatory factor (NKSF/IL-12), that has pleiotropic effects on human lymphocytes. B cell lines are also routinely employed as feeder cells fo...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(92)90322-g
更新日期:1992-11-01 00:00:00
abstract::This study examined the characteristics of functional anergy of natural killer cells (NK) following their interaction with target cells. Purified NK cells were cocultured with K562 for 15 min or 4 hr to allow for binding of targets to NK cells. The resulting NK-target conjugates were then dissociated by EDTA, and the ...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(95)80013-9
更新日期:1995-01-01 00:00:00
abstract::BENTA (B cell Expansion with NF-κB and T cell Anergy) is a novel lymphoproliferative disorder caused by germline, gain-of-function (GOF) mutations in the lymphocyte-restricted scaffolding protein CARD11. Similar somatic CARD11 mutations are found in lymphoid malignancies such as diffuse large B cell lymphoma (DLBCL). ...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/j.cellimm.2020.104129
更新日期:2020-07-01 00:00:00
abstract::To improve the engraftment of human peripheral blood lymphocytes (PBL) to severe combined immunodeficient (SCID) mice, and to elucidate the factors which prevent the PBL's survival, we treated SCID mice with mAb, which neutralizes murine IFN-gamma's ability to activate cell-mediated immunity. Compared with untreated m...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1006/cimm.1997.1238
更新日期:1998-01-10 00:00:00
abstract::As fascinating a molecule as it can potentially get, nuclear factor-κB (NF-κB), a regulatory transcription factor, is as intriguing. NF-κB is a dimeric complex that controls the transcription of essential genes. NF-κB is involved in a variety of responses that play a pivotal role in regulating the immune response to i...
journal_title:Cellular immunology
pub_type: 杂志文章,评审
doi:10.1016/j.cellimm.2011.06.021
更新日期:2011-01-01 00:00:00
abstract::The inflammatory mechanisms that lead to the clinical symptoms that are grouped under the term inflammatory bowel disease have not been fully characterized. Although a specific mechanism has not been identified, inflammatory bowel disease is believed to be related to an inability by the immune system to shut active in...
journal_title:Cellular immunology
pub_type: 杂志文章,评审
doi:10.1016/j.cellimm.2017.11.004
更新日期:2019-09-01 00:00:00