Poxvirus and vaccines

MEsteban

 

Mariano Esteban

Group Leader

Contact

 

Research summary

The main objectives of our laboratory are geared toward understanding the molecular basis of the pathogenesis of infectious agents and their interaction with the host, as well as to use this knowledge in the development of vaccines that might be effective against diseases like AIDS, malaria and leishmaniasis. As a model system of an infectious agent and as a delivery vector for expression of genes of interest, we used vaccinia virus (VV), a member of the poxvirus family.

 

Publications

Asbach B, Kliche A, Köstler J, Perdiguero B, Esteban M, Jacobs BL, Montefiori DC, LaBranche CC, Yates NL, Tomaras GD, Ferrari G, Foulds KE, Roederer M, Landucci G, Forthal DN, Seaman MS, Hawkins N, Self SG, Sato A, Gottardo R, Phogat S, Tartaglia J, Barnett SW, Burke B, Cristillo AD, Weiss DE, Francis J, Galmin L, Ding S, Heeney JL, Pantaleo G, Wagner R. Potential To Streamline Heterologous DNA Prime and NYVAC/Protein Boost HIV Vaccine Regimens in Rhesus Macaques by Employing Improved Antigens. J Virol. 2016; 90: 4133-49

Di Pilato M, Mejías-Pérez E, Zonca M, Perdiguero B, Gómez CE, Trakala M, Nieto J, Nájera JL, S Sorzano CO, Combadière C, Pantaleo G, Planelles L, Esteban M. NFκB activation by modified vaccinia virus as a novel strategy to enhance neutrophil migration and HIV-specific T-cell responses. Proc Natl Acad Sci U S A. 2015; 112: E1333-42

Perdiguero B, Gómez CE, Cepeda V, Sánchez-Sampedro L, García-Arriaza J, Mejías-Pérez E, Jiménez V, Sánchez C, Sorzano CÓ, Oliveros JC, Delaloye J, Roger T, Calandra T, Asbach B, Wagner R, Kibler KV, Jacobs BL, Pantaleo G, Esteban M. Virological and Immunological Characterization of Novel NYVAC-Based HIV/AIDS Vaccine Candidates Expressing Clade C Trimeric Soluble gp140(ZM96) and Gag(ZM96)-Pol-Nef(CN54) as Virus-Like Particles. J Virol. 2015; 89: 970-88

García-Arriaza J, Perdiguero B, Heeney J, Seaman M, Montefiori DC, Labranche C, Yates NL, Shen X, Tomaras GD, Ferrari G, Foulds KE, McDermott A, Kao SF, Roederer M, Hawkins N, Self S, Yao J, Farrell P, Phogat S, Tartaglia J, Barnett SW, Burke B, Cristillo A, Weiss D, Lee C, Kibler K, Jacobs B, Asbach B, Wagner R, Ding S, Pantaleo G, Esteban M. Head-to-head comparison of poxvirus NYVAC and ALVAC vectors expressing identical HIV-1 clade C immunogens in prime/boost combination with Env protein in non-human primates. J Virol. 2015; 89: 8525-39

Gómez CE, Perdiguero B, García-Arriaza J, Cepeda V, Sánchez-Sorzano CÓ, Mothe B, Jiménez JL, Muñoz-Fernández MÁ, Gatell JM, López Bernaldo de Quirós JC, Brander C, García F, Esteban M. A Phase I Randomized Therapeutic MVA-B Vaccination Improves the Magnitude and Quality of the T Cell Immune Responses in HIV-1-Infected Subjects on HAART. PLoS One. 2015; 10: e0141456

 

Diapositiva3The main objectives of our laboratory are geared to understanding the molecular basis of the pathogenesis of infectious agents and their interaction with the host, and to use this knowledge to develop effective vaccines against human diseases like HIV/AIDS, hepatitis C, chikungunya, malaria, leishmaniasis, and prostate cancer. As a model system of an infectious agent and as a delivery vector to express genes of interest, we use vaccinia virus (VV), a member of the poxvirus family.

The research areas in our lab are a) vaccinia virus structure, b) the mechanism of interferon antiviral and antitumor action, c) virus-host cell interaction, and d) development of vaccines for prevalent human diseases.

Our main achievements in 2013-2014 include
1) The first therapeutic phase I clinical trial in Spain with the HIV/AIDS vaccine candidate MVA-B developed by our group, in HIV-infected individuals under HAART (highly active antiretroviral therapy). The results showed a good safety profile and immunogenicity, particularly for specific activation of CD4+ T cells and induction of anti-V1/V2 antibodies, a marker of protection. In addition, the vaccine induced a tendency to reduced viral load after antiretroviral interruption.

2) We developed a vaccine against chikungunya virus, an RNA virus that causes severe articular pains and is spreading worldwide via the tiger mosquito Aedes albopictus.

3) We developed vectors based on the attenuated VV strain NYVAC expressing HIV-1 clade C trimeric gp140 and Gag-Pol-Nef, which showed excellent immune behaviour in preclinical trials. These vectors are being tested for safety and immunogenicity in phase I clinical trials.

4) We genetically modified the poxvirus-based vaccine candidates MVA and NYVAC by selective deletion of viral immunomodulatory genes, and showed optimised immunological behaviour against HIV.

5) We identified a mechanism of HIV immune activation through NYVAC modulation of the functional switch in neutrophils.

 

 

 

grupoEstebanRed

 

Name
Position
Contact
Mariano Esteban Principal investigator
Beatriz Perdiguero Postdoctoral scientist
Lucas Sánchez Postdoctoral scientist
Ernesto Mejías Predoctoral scientist
Suresh Chithathur Predoctoral scientist
María Victoria Jiménez Technician
Cristina Sánchez Technician

NOTE! This site uses cookies and similar technologies.

If you continue browsing or do not change browser settings, we consider your acepptance for using. Learn more

I understand

COOKIES POLICY

A cookie is a text file that is stored on your computer or mobile device via a web server and only that server will be able to retrieve or read the contents of the cookie and allow the Web site remember browser preferences and navigate efficiently. Cookies make the interaction between the user and the website faster and easier.

General information

This Website uses cookies. Cookies are small text files generated by the web pages you visit, which contain the session data that can be useful later in the website. In this way this Web remembers information about your visit, which can facilitate your next visit and make the website more useful.

How do cookies?

Cookies can only store text, usually always anonymous and encrypted. No personal information is ever stored in a cookie, or can be associated with identified or identifiable person.

The data allow this website to keep your information between the pages, and also to discuss how to interact with the website. Cookies are safe because they can only store information that is put there by the browser, which is information the user entered in the browser or included in the page request. You can not run the code and can not be used to access your computer. If a website encrypts cookie data, only the website can read the information.

What types of cookies used?

The cookies used by this website can be distinguished by the following criteria:

1. Types of cookies as the entity that manages:

Depending on who the entity operating the computer or domain where cookies are sent and treat the data obtained, we can distinguish:

- Own cookies: are those that are sent to the user's terminal equipment from a computer or domain managed by the editor itself and from which provides the service requested by the user.

- Third party cookies: these are those that are sent to the user's terminal equipment from a machine or domain that is not managed by the publisher, but by another entity data is obtained through cookies.

In the event that the cookies are installed from a computer or domain managed by the editor itself but the information collected by these is managed by a third party can not be considered as party cookies.

2. Types of cookies as the length of time that remain active:

Depending on the length of time that remain active in the terminal equipment can be distinguished:

- Session cookies: cookies are a type designed to collect and store data while the user accesses a web page. Are usually used to store information that only worth preserving for the service requested by the user at any one time (eg a list of products purchased).

- Persistent cookies: cookies are a type of data which are stored in the terminal and can be accessed and treated for a period defined by the head of the cookie, and can range from a few minutes to several years.

3. Cookies types according to their purpose:

Depending on the purpose for which the data are processed through cookies, we can distinguish between:

- Technical cookies: these are those that allow the user to navigate through a web page or application platform and the use of different options or services it exist as, for example, control traffic and data communication, identify the session, access to restricted access parts, remember the elements of an order, make the buying process an order, make an application for registration or participation in an event, use security features while browsing store content for dissemination videos or sound or share content via social networks.

- Customization cookies: these are those that allow the user to access the service with some general characteristics based on a predefined set of criteria in the user terminal would eg language, the type of browser through which you access the service, the locale from which you access the service, etc.

- Analysis cookies: they are those that allow the responsible for them, monitoring and analyzing the behavior of users of the web sites that are linked. The information gathered through such cookies are used in measuring the activity of web sites, application or platform and for the profiling of user navigation of such sites, applications and platforms, in order to make improvements function data analysis how users use the service.

Management tool cookies

This Website uses Google Analytics.

Google Analytics is a free tool from Google that primarily allows website owners know how users interact with your website. Also, enable cookies in the domain of the site in which you are and uses a set of cookies called "__utma" and "__utmz" to collect information anonymously and reporting of website trends without identifying individual users..

For statistics of use of this website use cookies in order to know the level of recurrence of our visitors and more interesting content. This way we can concentrate our efforts on improving the most visited areas and make the user more easily find what they are looking for. On this site you can use the information from your visit for statistical evaluations and calculations anonymous data and to ensure the continuity of service or to make improvements to their websites. For more details, see the link below privacy policy [http://www.google.com/intl/en/policies/privacy/]

How to manage cookies on your computer: disabling and deleting cookies

All Internet browsers allow you to limit the behavior of a cookie or disable cookies within settings or browser settings. The steps for doing so are different for each browser, you can find instructions in the help menu of your browser.

If you decline the use of cookies, since it is possible thanks to the preferences menu of your browser or settings, reject, this website will continue to function properly without the use of the same.

Can you allow, block or delete cookies installed on your computer by setting your browser options installed on your computer:

- For more information about Internet Explorer click here.
- For more information on Chrome click here.
- For more information about Safari click here.
- For more information about Firefox click here.

Through your browser, you can also view the cookies that are on your computer, and delete them as you see fit. Cookies are text files, you can open and read the contents. The data within them is almost always encrypted with a numeric key corresponding to an Internet session so often has no meaning beyond the website who wrote it.

Informed consent

The use of this website on the other hand, implies that you paid your specific consent to the use of cookies, on the terms and conditions provided in this Cookies Policy, without prejudice to the measures of deactivation and removal of cookies that you can take, and mentioned in the previous section.