نتایج جستجو برای: hiv vaccine
تعداد نتایج: 309384 فیلتر نتایج به سال:
زمینه و هدف: تحویل مستقیم آنتی¬ژن به سلول های دندریتیک موجب تقویت پاسخ های ایمنی می شود و راهکاری مناسب در مبارزه علیه پاتوژن¬هایی نظیر hiv می¬یاشد. هدف این مطالعه بررسی پاسخ های ایمنی حاصل از تحویل مستقیم پروتئین نوترکیب چنداپی توپی tat/pol/gag/env ویروس 1-hiv در مرحله تزریق یادآور با کمک آنتی بادی منوکلونال علیه 205-dec موجود در سطح سلول های دندریتیک موش جهت تقویت پاسخ های ایمنی است. مواد ...
The success of many current vaccines relies on a formulation that incorporates an immune activating adjuvant. This will hold true for the design of a successful therapeutic HIV vaccine targeted at controlling reactivated virus following cessation of combined antiretroviral therapy (cART). The HIV accessory protein Nef functions by interfering with HIV antigen presentation through the major hist...
The HIV/AIDS epidemic remains a global health problem, especially in Sub-Saharan Africa. An effective HIV-1 vaccine is therefore badly required to mitigate this ever-expanding problem. Since HIV-1 infects its host through the mucosal surface, a vaccine for the virus needs to trigger mucosal as well as systemic immune responses. Oral, attenuated recombinant Salmonella vaccines offer this potenti...
BACKGROUND Hepatitis B virus (HBV) vaccine antibody response has been associated with reduced risk of AIDS or death. However, it is unknown whether HBV vaccine responsiveness is associated with improved immune reconstitution during treatment with combination antiretroviral therapy (cART). We evaluated the relationship between HBV vaccine response status and CD4 reconstitution on cART in the U.S...
Influenza infections have high frequency and morbidity in HIV-infected pregnant women, underscoring the importance of vaccine-conferred protection. To identify the factors that determine vaccine immunogenicity in this group, we characterized the relationship of B- and T-cell responses to pandemic H1N1 (pH1N1) vaccine with HIV-associated immunologic and virologic characteristics. pH1N1 and seaso...
Over the last 12 years, many human immunodeficiency virus (HIV) vaccine candidates have been tried in humans, with disappointing results. In particular, recombinant envelope proteins have failed to elicit strong cellular immune responses or neutralizing antibody against many wild-type isolates of HIV-1. Attenuated strains of simian immunodeficiency virus (SIV), although capable of protecting ag...
Emerging data support a role for antibody Fc-mediated antiviral activity in vaccine efficacy and in the control of HIV-1 replication by broadly neutralizing antibodies. Antibody-mediated virus internalization is an Fc-mediated function that may act at the portal of entry whereby effector cells may be triggered by pre-existing antibodies to prevent HIV-1 acquisition. Understanding the capacity o...
Unanticipated results from 2 recent candidate human immunodeficiency virus type 1 (HIV-1) vaccine regimens in large-scale international trials highlight the importance of understanding the optimal earliest immune defense against HIV-1 infection. Presented here are key findings in these vaccine studies with relevance to the development of future vaccines to control acute HIV-1 infection.
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