Boosting Virology in Brazil

نویسندگان

  • Maria Inês de Moura Campos Pardini
  • Leda Fátima Jamal
  • Edison Luiz Durigon
  • Eduardo Massad
  • José Fernando Perez
  • João Renato Rebello Pinho
  • Edward C Holmes
  • Paolo Marinho de Andrade Zanotto
چکیده

In 1997, in an effort to improve the pursuit of virology in the state of São Paulo, Brazil, a group of scientists proposed the establishment of a Viral Genetic Diversity Network (VGDN) to São Paulo’s major scientific funding agency, Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP). The major impetus for the project was the earlier establishment of the Xylella fastidiosa genome sequencing consortium [1], organised to counter this plant pathogen, which has had a serious impact on the Brazilian agricultural economy and industry. In addition to addressing this important national priority, the X. fastidiosa sequencing consortium also had a major qualitative impact on genome sciences in Brazil. Taking inspiration from the success of the genome sequencing effort, the VGDN envisaged a network of laboratories at several research institutions in the state of São Paulo, with the aim of studying key viral diseases within an applied context. Its main goal was to provide competence in genetic studies of viruses and to acquire primary data of immediate use (e.g., the monitoring of vaccines, antiviral drug resistance, and the spread of specific viral genotypes). The VGDN proposal was evaluated by a panel of top international scientists and eventually approved for funding by FAPESP. Under the concept of a “virtual institute” fostered by FAPESP [2], the programme was organised as a multicentre, multi-task network comprising five central laboratories and 17 satellite units, strategically distributed throughout the state. Although member institutions were encouraged to pursue their own independent lines of research, all had to cooperate on four viruses of particular public health importance for Brazil: HIV-1, hepatitis C virus, human respiratory syncytial virus (HRSV), and hantavirus. The unifying elements of the VGDN included: (1) a system of sampling and experimental design utilising clinical and epidemiological information; (2) large-scale automated viral gene sequencing; and (3) the tracking of genetic variants during epidemic outbreaks to detect variants of importance for diagnosis and vaccines. A core set of VGDN laboratories started operations in 2001, conducting a pilot study on HIV-1 together with state-run sexually transmitted disease/AIDS reference centres at a total cost of US$2 million. Over the next few years, FAPESP invested a total of US$7.5 million in the VGDN. Crucially, the infrastructure, technical capabilities, and some research time provided under the VGDN were also utilised by each participating member as seed for the establishment of research projects beyond the four coordinated tasks. The VGDN had 41 researchers, the direct involvement of 115 graduate and 29 under-graduate students, and 69 technicians. Almost all of the institutions provided funds in addition to the resources included under the programme, and in three campuses across the state, new virology units (including new buildings) were established. A total of 20 laboratories Boosting Virology in Brazil

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

The impact of a boosting immunogen on the differentiation of secondary memory CD8+ T cells.

While recent studies have demonstrated that secondary CD8+ T cells develop into effector-memory cells, the impact of particular vaccine regimens on the elicitation of these cells remains poorly defined. In the present study we evaluated the effect of three different immunogens--recombinant vaccinia, recombinant adenovirus, and plasmid DNA--on the generation of memory cellular immune responses. ...

متن کامل

Glycoprotein exchange vectors based on vesicular stomatitis virus allow effective boosting and generation of neutralizing antibodies to a primary isolate of human immunodeficiency virus type 1.

Live recombinant vesicular stomatitis viruses (VSVs) expressing foreign antigens are highly effective vaccine vectors. However, these vectors induce high-titer neutralizing antibody directed at the single VSV glycoprotein (G), and this antibody alone can prevent reinfection and boosting with the same vector. To determine if efficient boosting could be achieved by changing the G protein of the v...

متن کامل

Enhanced immunogenicity of gp120 protein when combined with recombinant DNA priming to generate antibodies that neutralize the JR-FL primary isolate of human immunodeficiency virus type 1.

Strategies are needed for human immunodeficiency virus type 1 vaccine development that improves the neutralizing antibody response against primary isolates of the virus. Here we examined recombinant DNA priming followed by subunit protein boosting as a strategy to generate neutralizing antibodies. Both plasmid-based and recombinant protein envelope (Env) glycoprotein immunogens were derived fro...

متن کامل

Plasmid chemokines and colony-stimulating factors enhance the immunogenicity of DNA priming-viral vector boosting human immunodeficiency virus type 1 vaccines.

Heterologous "prime-boost" regimens that involve priming with plasmid DNA vaccines and boosting with recombinant viral vectors have been shown to elicit potent virus-specific cytotoxic T-lymphocyte responses. Increasing evidence, however, suggests that the utility of recombinant viral vectors in human populations will be significantly limited by preexisting antivector immunity. Here we demonstr...

متن کامل

Challenges and Prospects for Integrating the Assessment of Health Impacts in the Licensing Process of Large Capital Project in Brazil

Brazil was one of the first countries in Latin America to institutionalize a National Environmental Policy in 1981, including the environmental impact assessment (EIA) process of economic activities with anticipated impacts on the environment. Today, EIA practice in Brazil comes with a number of limitations: it is constrained by its environmental advocacy role; application is strongly oriented ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • PLoS Biology

دوره 6  شماره 

صفحات  -

تاریخ انتشار 2008