Dr Jesus Valenzuela

Dr Jesus Valenzuela
Dr Jesus Valenzuela
Senior Investigator

Presentations at BSP Spring Meeting 2018

Wed11  Apr02:15pm(90 mins)

Session: Host -Vector- Parasite Interactions III
Room: Stream 1 - Edward Llwyd 0.26 Biology Main

Profile of Dr Jesus Valenzuela

The Vector Molecular Biology Section focuses on the molecular aspects of vector salivary proteins, with emphasis on studying the impact of sand fly salivary proteins at the vector/host/parasite interface. Our section combines basic approaches with entomological, veterinary, and clinical research, broadening our understanding of the relationship between immune responses to vector salivary proteins and disease outcome. Our ultimate goal is to use this information to contribute to the development of an effective vaccine by incorporating a salivary protein in an anti-Leishmania vaccine formulation, to develop animal models that mimic the disease transmission in nature, and to develop biomarkers of vector exposure for epidemiological studies.

Our interest in these studies is based on the fact that every time an infective sand fly gets a blood meal, it delivers Leishmania parasites and at the same time injects saliva, which contains a variety of potent bioactive proteins that helps the insect to get a blood meal and consequently modifies the environment where the parasite is deposited. Current vaccines and animal models of leishmaniasis do not take this fact into account, and we hypothesize this may be one of the reason why an effective vaccine is not yet available even after years of research and a number of promising available candidates. In our section, we identified salivary immunogens that can drive a protective immune response against this neglected disease, and we recently established relevant animal models of disease using the natural route of transmission, the bite of infective sand flies. These approaches are permitting the section to ask basic and fundamental research questions regarding the transmission of this vector borne-disease, to study the impact of selected salivary recombinant proteins in disease, to translate these findings to field research work, and to create partnerships with companies, research institutions, and non-profit organizations to apply this information for veterinary and public health purposes.
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