نتایج جستجو برای: humoral
تعداد نتایج: 19042 فیلتر نتایج به سال:
The ubiquitous Ca2(+)-phosphoinositide pathway transduces extracellular signals to cellular effectors. Using a mathematical model, we simulated intracellular Ca2+ fluctuations in hepatocytes upon humoral stimulation. We estimated the information encoded about random humoral stimuli in these Ca2+ spike trains using an information-theoretic approach based on stimulus estimation methods. We demons...
Phenoloxidase (PO) from the humoral fluid of amphioxus B. belcheri tsingtauense was purified using a sequential combination of ammonium sulphate precipitation, Sephadex G-200 chromatography and DEAE Sepharose Fast Flow chromatography. In PAGE, the purified enzyme exhibited a single band of 150 kDa under non-reducing conditions, and was resolved to three bands with molecular masses of 72, 46 and...
While antibody titers and neutralization are considered the gold standard for the selection of successful vaccines, these parameters are often inadequate predictors of protective immunity. As antibodies mediate an array of extra-neutralizing Fc functions, when neutralization fails to predict protection, investigating Fc-mediated activity may help identify immunological correlates and mechanism(...
Mammary tumor virus (MTV) infection has been shown to be associated with a diminished hypersensitive reaction to methylated bovine serum albumin. Since methylated bovine serum albumin-induced hypersensitivity appears to be a mixed [humoral versus cell-mediated immunity (CMI)] reaction, the deficit in reactivity could be caused by, among other things, a direct depression of CMI or an increase in...
The humoral fluid of Branchiostoma belcheri tsingtauense was examined for the presence of complement-like activity. The humoral fluid showed hemolytic activity for rabbit erythrocytes and those from species representing mammals, birds, amphibians and fish, but not sensitized sheep erythrocytes. There was no relationship between phylogeny of the target erythrocytes and degree of hemolysis. The h...
BACKGROUND A desirable HIV vaccine should induce protective long-lasting humoral and cellular immune responses. METHODS Macaques were immunized by env DNA, selected from a panel of recently transmitted SIVmac251 Env using intradermal electroporation as vaccine delivery method and magnitude, breadth and longevity of humoral and cellular immune responses. RESULTS The macaques developed high, ...
During the past 2 decades, significant advances in our understanding of the humoral immune response to human immunodeficiency virus type 1 (HIV-1) infection have been made, yet a tremendous amount of work lies ahead. Despite these advances, strategies to reliably induce antibodies that can control HIV-1 infection are still critically needed. However, recent advances in our understanding of the ...
Introduction: The development of an effective vaccine against Hepatitis C virus (HCV) is still a target of intensive vaccine research. The HCV envelope proteins E1 and E2 which can induce broadly neutralizing antibodies are the major candidate for this purpose. Different types of expression systems have been used to express these glycoproteins. In this study, an expression system using Pichia p...
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