Abstract:
:We investigated the regulation of IL6 biological activity, de novo synthesis, and mRNA levels in adult vascular endothelial cells (EC) by bacterial endotoxin or inflammatory cytokines. Cells incubated without stimulus released scant IL6 activity. IFN gamma, IL2, or PDGF did not augment IL6 release from EC. LPS, lipid A, and TNF increased IL6 release modestly (5 to 20-fold), while recombinant IL1s (rIL1s) stimulated this process 100 to 400-fold. Differential release of IL6 from EC treated with LPS or rIL1 continued for at least 144 hr. Exposure to LPS or rIL1 caused EC to synthesize IL6 de novo. EC secreted the newly synthesized IL6 into the supernatant, rather than retaining it within or bound to cells. EC accumulated IL6 mRNA after 3 hr of exposure to rIL1. However, we could only detect IL6 message in cells incubated with LPS under "superinduction" conditions with cycloheximide, consistent with lower levels of IL6 biological activity in response to LPS compared to IL1 stimulation. We propose that local production of IL6 by vascular EC, which comprise the barrier between tissues and the blood, may influence regional immune and inflammatory responses.
journal_name
Cell Immunoljournal_title
Cellular immunologyauthors
Loppnow H,Libby Pdoi
10.1016/0008-8749(89)90095-6subject
Has Abstractpub_date
1989-09-01 00:00:00pages
493-503issue
2eissn
0008-8749issn
1090-2163pii
0008-8749(89)90095-6journal_volume
122pub_type
杂志文章abstract::Rat IL-2 produced by spleen cells in culture with concanavalin A was purified using gel filtration, hydrophobic chromatography, and ion-exchange chromatography. At least two forms of rat IL-2 were found to be separable by ion-exchange chromatography. These two forms have been designated form I and form II. Form I of r...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(88)90251-1
更新日期:1988-06-01 00:00:00
abstract::In the present study, we characterized in monocytes the rise in [Ca(2+)](i) evoked by monoclonal antibodies (mAbs) to aminopeptidase N (APN)/CD13, showing a two-phase calcium increase with a small-belled [Ca(2+)](i) rise due to the release of calcium from intracellular stores and a more sustained plateau due to the in...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1006/cimm.2000.1629
更新日期:2000-04-10 00:00:00
abstract::In this study, we demonstrate that HIV-1 Tat protein is able to induce IL-10 and TNF-alpha in human macrophages. We show that N-terminal Tat 1-45 fragment initiates the PKC pathway by acting at the membrane. Inhibition of PKC pathway, by chemical inhibitors or after PMA treatment, abolishes both IL-10 and TNF-alpha pr...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/j.cellimm.2008.06.011
更新日期:2008-01-01 00:00:00
abstract::The candidacidal activity (CA) of peritoneal cells (PC) in vitro was used as a measure of nonspecific microbicidal activity of phagocytes after intraperitoneal injection of mice with different adjuvants. Dilutions of PC were incubated with constant numbers of C. parapsilosis in a 96-well culture plate. The PC number c...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(85)90164-9
更新日期:1985-01-01 00:00:00
abstract::Chronic relapsing experimental allergic encephalomyelitis (CR-EAE) can be adoptively transferred using myelin basic protein (BP)-specific helper T cell lines, and suppressor cells may be important in recovery from EAE. In order to generate suppressor cells, spleen cells obtained from BP-complete Freund's adjuvant (CFA...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(90)90322-i
更新日期:1990-04-01 00:00:00
abstract::We have previously shown that whole cell preparations of Candida albicans are capable of inducing immunosuppressive B-cell activity both in vivo and in vitro. In an effort to characterize the components of the yeast which manifest this immunomodulatory activity, we have successfully generated a soluble extract with di...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(89)90149-4
更新日期:1989-08-01 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::MicroRNAs (miRNAs) are aberrant in many human tumors which can be transferred to immune cells by tumor-derived exosomes. Dendritic cells (DCs) play an important role in activation of immune response. However, the effect of tumor-derived exosomes on toll-like receptor (TLR) in DCs remains unclear. We investigated the i...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/j.cellimm.2014.09.004
更新日期:2014-11-01 00:00:00
abstract::We have characterized in vivo and in vitro responses of mice to the BALB/c-derived carcinoma, C26. BALB/c mice were highly susceptible, in a dose-dependent fashion, to local tumor development following subcutaneous injection of C26. Other strains of mice, including allogeneic strains and major histocompatibility compl...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(89)90160-3
更新日期:1989-08-01 00:00:00
abstract::We previously reported that T cell proliferation in response to a primary signal through the T cell receptor (TCR) and a costimulatory signal via the CD28 molecule is impaired in healthy, aged mice. Here we extend these studies to examine factors which may be involved in this defect in T cells from aged mice. To deter...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1006/cimm.1996.0144
更新日期:1996-05-25 00:00:00
abstract::The ability of calcium ionophore and phorbol ester to stimulate entry into S phase was assessed during short-term cultures of murine B cells extensively depleted of T cells. Neither ionomycin alone nor PMA alone stimulated DNA synthesis. However, the combination of ionomycin plus PMA acted in synergy to induce initiat...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(86)90430-2
更新日期:1986-10-15 00:00:00
abstract::Blockade of the immune cell checkpoint inhibitors programmed death 1 (PD-1) and programmed death-ligand 1 (PD-L1) has become a powerful tool in cancer treatment, which is effective across various solid cancer types and hematologic malignancies. Our previous studies showed that by reducing immune tolerance, clustered r...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/j.cellimm.2017.09.003
更新日期:2017-10-01 00:00:00
abstract::The role of protein synthesis during the activation of macrophages (M phi) by lymphokines (LK) was studied. Peritoneal murine macrophages elicited by proteose-peptone (pM phi) were activated with LK (supernatants from normal mouse spleen cells pulsed with concanavalin A) and tested for cytotoxicity in an 18 hr assay a...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(84)90273-9
更新日期:1984-04-15 00:00:00
abstract::Tumor necrosis factor (TNF) is a 17-kDa protein produced by endotoxin-stimulated macrophages. We have demonstrated that recombinant human TNF activates human macrophages to kill intracellular bacteria of the Mycobacterium avium complex (MAC) in a dose-related manner. TNF also primed macrophages to produce superoxide a...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(92)90243-i
更新日期:1992-10-15 00:00:00
abstract::Mice that received a sublethal, intraperitoneal dose of viable Listeria monocytogenes, virulent strain 10403, exhibited a systemic increase in natural killer (NK) activity. The kinetics of the response differed with respect to the various effector cell populations analyzed. Resident peritoneal cells and peripheral blo...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(84)90108-4
更新日期:1984-04-01 00:00:00
abstract::The nonspecific suppression of immunological responses that is generated within host popliteal lymph nodes upon exposure to syngeneic normal spleen cells has been examined. The suppression, which had previously been described as being capable of preventing initiation of cytotoxic T lymphocytes (CTLs) to hapten-altered...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(87)90069-4
更新日期:1987-03-01 00:00:00
abstract::Class I antigens are necessary for the recognition of tumor cells by cytotoxic T lymphocytes (CTL). The line 1 lung carcinoma is a spontaneous murine tumor deficient in class I antigen expression. Consistent with this, line 1 cells are highly metastatic in vivo. We investigated whether increasing class I antigen expre...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(90)90134-d
更新日期:1990-05-01 00:00:00
abstract::It has been reported that granulocyte/macrophage colony-stimulating factor (GM-CSF), one of the hemopoietic growth factors which regulates the function of phagocytic cells, is a potent activator of cultured macrophages and induces antimicrobial activities as well as differentiation of precursor cells. In this study, w...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1006/cimm.1996.1074
更新日期:1997-02-25 00:00:00
abstract::Experimental autoimmune encephalomyelitis (EAE) is an animal model for multiple sclerosis (MS), and is induced by immunization with disease-causative self-antigens such as myelin oligodendrocyte glycoprotein (MOG). We have previously reported that transplantation of MOG expressing thymic epithelial progenitors (TEPs) ...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/j.cellimm.2017.10.007
更新日期:2017-12-01 00:00:00
abstract::In this study the influence of a non-mitogenic anti-CD3 antibody on accessory cell-dependent antigen and mitogen-induced T-lymphocyte proliferation has been investigated. The antibody was found to completely inhibit PHA, Con A, PWM, and tetanus toxoid stimulation, with no effect on the proliferation induced by the cal...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(86)90014-6
更新日期:1986-06-01 00:00:00
abstract::Various anti-Fc gamma RIII (CD16) monoclonal antibodies (mAbs) are shown here to have positive or negative modulatory effects on human NK cells. Thus, 3G8 mAb (IgG1) triggered a dose-dependent augmentation of NK activity in 67% (23/34) of individuals tested, who were designated as responders. All four IgG1 anti-CD16 m...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1006/cimm.1995.1113
更新日期:1995-07-01 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::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::Atherosclerosis involves immune mechanisms: T lymphocytes are found in atherosclerotic plaques, suggesting their activation during atherogenesis. The predominant voltage-gated potassium channel of T cells, Kv1.3 is a key regulator of the Ca(2+)-dependent activation pathway. In the present experiments we studied the pr...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/j.cellimm.2013.01.004
更新日期:2013-01-01 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::Inhibitors of energy metabolism, 2-deoxyglucose and cyanide were shown to inhibit NKCF-mediated lysis of L929 target cells at the same molar concentrations that effectively inhibited cellular ATP levels and the toxic effects of pseudomonas toxin A. In addition, inhibitors of receptor-mediated endocytosis, cytochalasin...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(86)90337-0
更新日期:1986-10-01 00:00:00
abstract::The expression of HLA Class II antigens by resting and phytohemagglutinin (PHA)-activated T cells and their functional properties in autologous mixed-lymphocyte reactions (MLR) were investigated in patients with chronic active hepatitis, with alcoholic cirrhosis, and with primary biliary cirrhosis. In all groups of pa...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(86)90341-2
更新日期:1986-10-01 00:00:00
abstract::Vibrio vulnificus, a pathogenic bacterium causing primary septicemia, exhibited cytotoxicity towards Jurkat cells of T-lymphocytes through intracellular reactive oxygen species (ROS) production. Pretreatment of Jurkat T-cells with diphenyleneiodonium chloride (DPI) abolished V. vulnificus-induced ROS generation and ba...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/j.cellimm.2008.05.003
更新日期:2008-05-01 00:00:00
abstract::Over the last three decades it has become increasingly clear that monocytes, originally thought to have fixed, stereotypic responses to foreign stimuli, mediate exquisitely balanced protective and pathogenic roles in disease and immunity. This balance is crucial in core functional organs, such as the central nervous s...
journal_title:Cellular immunology
pub_type: 杂志文章,评审
doi:10.1016/j.cellimm.2014.07.002
更新日期:2014-09-01 00:00:00
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 wit...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(90)90218-g
更新日期:1990-09-01 00:00:00