The lymphocytes from eight patients with active visceral leishmaniasis (VL), a disease associated with marked immunologic dysfunction, were examined for ability to produce interleukin 2 (IL-2) and gamma interferon during in vitro cultivation. It was found that both IL-2 and gamma interferon production, in response to leishmania antigen, was absent during the active disease, but was restored aft...

background:the premature termination of high producer clones, which will be killed due to cell proliferation and proteins production antagonism, is one of the basic drawback in recombinant proteins technology. furtheremore, it is supposed some toxic proteins like interferon which we intended to clone and express, inhibit host cells’ proliferation. so, it is necessary to tightly control ifn-γ pr...

Recombinant interferon beta-1b (INF-beta-1b) has been proven to be an effective means of treating relapsing-remitting multiple sclerosis (MS). Adverse reactions to interferon therapy have been well documented. The most common side effects are transient influenza-like symptoms, including fever, fatigue, nausea, and myalgia. Cutaneous necrosis has occasionally been reported, mostly involving smal...

The early role of natural killer cells and gamma delta T cells in the development of protective immunity to the blood stage of nonlethal Plasmodium yoelii infection was studied. Splenic cytokine levels were measured 24 h after infection of natural killer cell-depleted immunodeficient and littermate mice or transiently T-cell-depleted normal mice. Splenic gamma interferon levels were significant...

1. Gaines AR, Varricchio F. Interferon beta-1b injection site reactions and necroses. Mult Scler. 1998;4:70. 2. Aguilar G, Serrano C, Carmona M, Linares J, Serrano S. Necrosis cutánea por interferón alfa en paciente con melanoma. Actas Dermosifiliogr. 2006;97:539--42. 3. Beiske AG, Myhr KM. Lipoatrophy: a non-reversible complication of subcutaneous interferon-beta 1a treatment of multiple scler...

Tuning recombinant protein expression is an approach which can be successfully employed for increasing the yield of recombinant protein production in high cell density cultures. On the other hand, most of the previous results reported the optimization induction conditions during batch and continuous culture of recombinant E. coli, and consequently fed-batch culture have received less attention....

With the introduction of interferon- β 1b in 1993 as the first FDA-approved treatment for multiple sclerosis, the era of treatment of this incurable disease began, and its natural course was permanently changed. Currently, seven different treatments for patients with multiple sclerosis with different mechanisms of action and dissimilar side effect profiles exist. These medications include inter...

Japanese studies have defined the discrete 2209-2248 amino acid region of the non-structural 5A protein (NS5A(2209-2248)) of hepatitis C virus genotype 1b (HCV 1b) isolates as the interferon sensitivity determining region (ISDR). European studies did not confirm these results since most of the ISDR sequences harboured an intermediate profile. Recently, a direct interaction between the NS5A prot...

Radioiodinated recombinant human beta-interferon (rHuIFN beta Ser), with almost full (greater than 90%) biological activity, was used to study the binding of human beta-interferon to Daudi cells. Specific binding was not observed with less biologically active (less than or equal to 10%) radioiodinated interferon. The bound radioiodinated interferon was shown to compete with human beta-interfero...

flavonoids are potentially immunomodulatory factors and it may be inferred that these phytochemicals contribute to immunomodulatory properties of the allium family. in the present study, we investigated the potential mechanism underlying the immunomodulatory effect of shallot and its ethyl acetate (ea) fraction as flavonoid-rich sources. ex vivo, effects of a hydroalcoholic extract of shallot, ...