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Development Of Oral Mucosal Vaccine Against Multidrug Resistance Shigella Dysenteriae Type- 1 (SD1) | 11148
ISSN: 2155-9899

Journal of Clinical & Cellular Immunology
Open Access

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2nd International Conference on Clinical & Cellular Immunology

Priti Desai
ScientificTracks Abstracts: J Clin Cell Immunol
DOI: 10.4172/2155-9899.S1.013
Shigellosis is an acute invasive disease of the lower intestine which afflicts millions of people worldwide with an estimated one million fatalities per annum. Among the 50 serotypes and subtypes of Shigella , SD1 is the most virulent type and responsible for epidemics and pandemics. In the last decade, antibiotic resistant SD1 strains have been isolated with increasing frequency in Africa and Asia which reduce the option of effective oral therapy. The magnitude of the public health threat, development of vaccine against Shigella is considered a public health priority. There is no approved Shigella vaccine in the market though attempts have been made to develop an effective vaccine against shigellosis using killed, attenuated and subunit vaccine approach. The purpose of the study is to develop an oral vaccine against SD1 using genetically engineered Lactocoocus lactis expressing SD1 antigens to provide mucosal immunity. L. lactis , being pro-biotic bacteria has been the cynosure of novel vaccine-development platform because of its safety, stability in the stomach, and immunomodulatory properties. In this study, using bioinformatic tools and available literatures, we identified genes OmpA, OspC2 and StxB as a probable vaccine candidates. OmpA and OspC2 were successfully cloned in to L. lactis expression vectors and their presence were confirmed by PCR and RE digestion tests. After confirmation, L. lactis NZ9000 was successfully transformed with the constructed vectors pSEC:OmpA and pSEC:OspC2. Expressed antigens were confirmed by gene specific PCR and Western blotting. The efficacy of these expressed antigens to generate the serum and mucosal specific antibodies in the experimental animals is underway.
Priti Desai has completed her Ph.D. at the age of 30 years from Bhavnagar University and postdoctoral studies from NIPER-Ahmedabad. She is the Scientist-B in a premier Pharmaceutical Science organization. She has awarded DBT scholarship for post-doctoral studies in NIPER, Ahmedabad. She has independant project on vaccine development against shigellosis which is funded by Central Government Agencies (ICMR). She has a publication in peer reviewd journal like Biotechnology Advances.
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