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Vaccines-2013 - OMICS Group

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Prerna Chaudhary, J <strong>Vaccines</strong> Vaccin <strong>2013</strong>, 4:5http://dx.doi.org/10.4172/2157-7560.S1.0183 rd International Conference on<strong>Vaccines</strong> & VaccinationJuly 29-31, <strong>2013</strong> Embassy Suites Las Vegas, NV, USADevelopment of edible vaccine against anthrax by using edema factor gene of Bacillus anthracisPrerna ChaudharyJawaharlal Nehru University, IndiaAnthrax is an epizootic disease mainly affecting cattle, caused by the spore-forming bacterium Bacillus anthracis. It producesthree toxin components, protective antigen (PA), lethal factor (LF) and edema factor (EF). Lethal toxin (LF+PA) and edematoxin (EF+PA) are known to cause lethality in anthrax infected animal models. The recent bioterrorism attack and the revivalof the disease enforce an urgent need for effective prophylactic measures and therapeutic formulations to combat the disease.The currently used PA based anthrax vaccine is associated with several side effects due to its potential reactogenecity and alsorequires protracted and complicated dosages schedule. Since the expression of hepatitis B surface antigen in model plant tobacco,a number of antigenic proteins have been expressed in different plant systems. These plant based vaccines are especially attractiveas plants are free of human or animal diseases, reducing screening and purification costs. Also, they offer a palatable oral deliverysystem that stimulates both systemic and mucosal immune response. Attempts are being made to develop improved anthraxvaccines using antigens other then PA. Several immunization studies have proved that LF and EF alone, produce substantialamount of antibodies and in combination with PA, strengthen PA mediated immunoprotection. Studies have also highlighted theneed of using mutants of anthrax toxin components in vaccine preparations. We have successfully cloned normal and mutatedEF gene in a plant expression vector and Indian mustard plant Brassica juncea was transformed via Agrobacterium mediatedtransformation. Molecular and immunological studies have shown the stable integration and expression of EF gene in the plants.BiographyPrerna Chaudhary is a Ph.D. student at School of Life Sciences, Jawaharlal Nehru University, New Delhi. Currently, she is working on edible vaccineagainst anthrax and recently communicated a paper on PA based edible vaccine.prernajnu@gmail.comJ <strong>Vaccines</strong> Vaccin <strong>2013</strong>ISSN: 2157-7560, JVV an open access journal<strong>Vaccines</strong>-<strong>2013</strong>July 29-31, <strong>2013</strong>Volume 4 Issue 5Page 153

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