phytohemagglutinin/necrosis

Tumor necrosis factor-alpha (TNF-alpha) is a major cytokine of host immune reaction by foreign agents. Phytohemagglutinin (PHA) is a dynamic contributor to mitogenic stimulation and augmentation of host immune defense. Interferon-gamma (IFN-gamma) induces induction of cytokines in macrophages and

Twelve patients with nasopharyngeal carcinoma (NPC) were studied for spontaneous and phytohemagglutin (PHA)-stimulated production of cytokines, soluble markers and [3H] thymidine incorporation by mononuclear cells. The same number of patients with skin cancer and healthy subjects were used as

The aim of the study was to determine the concentration of selected cytokines secreted by peripheral blood mononuclear cells (PBMC) of patients with uveitis. We determined the spontaneous secretion and PHA- or LPS-induced production of IL-2, IL-6 and TNF in supernatants. The concentration of

The influence of purified recombinant human TNF-alpha (rhuTNF-alpha) was assessed, alone and in combination with purified recombinant human IFN-gamma (rhuIFN-gamma), for its effects on enhancing release from human T lymphocytes of activities that stimulate colony formation by granulocyte-macrophage,

BACKGROUND Horses are much predisposed and susceptible to excessive and acute inflammatory responses that cause the recruitment and stimulation of polymorphnuclear granulocytes (PMN) together with peripheral blood mononuclear cells (PBMC) and the release of cytokines. The aim of the study is to

One of the biological activities of interleukin 1 (IL1), the lymphocyte-activating function, is usually quantitated by measuring the effect on thymocyte proliferation in the presence of a T cell mitogen. Tumor necrosis factor (TNF) is also produced by activated macrophages, and it has recently been

The overproduction of cytokines such as the tumor necrosis factor-alpha (TNF-alpha) and interleukin-1 alpha (IL-1 alpha) may cause further deterioration in the already critical condition of patients with shock, sepsis, and acute inflammation. The effectiveness of infusion therapy of natural human

Blood samples from 29 patients with infectious mononucleosis (IM) in phases of acute disease and convalescence were obtained. Interferon alpha (IFN-alpha) and tumor necrosis factor alpha (TNF-alpha) activity was detected in sera of patients both in: acute and convalescence phase, however when IFN

We have generated two monoclonal antibodies (mAb), designated anti-1B11 and anti-4F9, directed to the human lymphocyte-function-associated antigen-1 (LFA-1). Indirect immunofluorescence with both mAb showed a bimodal distribution of antigen on the surface of T, natural killer (NK), and

The infectivity of infectious pancreatic necrosis virus (IPNV) for rainbow trout (Oncorhynchus mykiss) mononuclear leukocyte subpopulations was investigated to determine the mechanisms of immunosuppression caused by the virus. IPNV was recovered from nylon wool-adherent, surface immunoglobulin

OBJECTIVE The pleiotropic inflammatory effects of tumor necrosis factor (TNF) prompted a study of this cytokine in familial Mediterranean fever (FMF), a recurrent polyserositis of unknown etiology. METHODS Thirty-six asymptomatic and 24 patients with acute FMF were studied and compared with 20

Single-wall carbon nanotubes (SWCNT) possess a small size, large surface area, and high reactivity, which enable them to permeate the cytoplasmic or nuclear membrane and attach to biological molecules. During medical applications, SWNCT are usually administered intravenously, which enhances

Lymphotoxin (LT) and tumor necrosis factor (TNF) are cytokines with many common biologic effects including antiviral activity and induction of fever and the acute phase response; despite common effects, they are molecularly distinct. Because neonates are unduly susceptible to viral infection and

CD8+ T lymphocytes of asymptomatic human immunodeficiency virus type 1 (HIV-1) carriers (AC) suppress HIV-1 replication in vitro. Failure of host defense mechanisms and increased virus proliferation are associated with disease progression. The exact mechanisms inducing these changes at the advanced

Bronchoalveolar lavage (BAL) leukocyte-secreted cytokines are considered to be important mediators of the inflammatory and allergic reactions in the lung. This study examines quantitative changes in the level of tumor necrosis factor-alpha (TNF alpha) and interferon-gamma (IFN gamma) production in