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Promiscuous peptide of 16 kDa antigen linked to Pam2Cys protects against Mycobacterium tuberculosis by evoking enduring memory T-cell response.

DIR@IMTECH: CSIR-Institute of Microbial Technology

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Title Promiscuous peptide of 16 kDa antigen linked to Pam2Cys protects against Mycobacterium tuberculosis by evoking enduring memory T-cell response.
 
Creator Gowthaman, Uthaman
Singh, Vijender
Zeng, Weiguang
Jain, Shweta
Siddiqui, Kaneez F
Chodisetti, Sathi Babu
Gurram, Rama Krishna
Parihar, Pankaj
Gupta, Pushpa
Gupta, Umesh D
Jackson, David C
Agrewala, J N
 
Subject R Medicine (General)
 
Description One of the main reasons considered for BCG failure in tuberculosis-endemic areas is impediment by environmental mycobacteria in its processing and generation of memory T-cell response. To overcome this problem, we developed a unique lipopeptide (L91) by linking the promiscuous peptide (sequence 91-110) of 16 kDa antigen of Mycobacterium tuberculosis to Pam2Cys. L91 does not require extensive antigen processing and generates enduring Th1 memory response. This is evidenced by the fact that L91 significantly improved the activation, proliferation, and generation of protective T cells. Furthermore, L91 surmounts the barrier of major histocompatibility complex polymorphism and induces better protection than BCG. This peptide has self-adjuvanting properties and activates dendritic cells. Importantly, L91 activates T cells isolated from purified protein derivative-positive healthy volunteers that responded weakly to free peptide (F91). In essence, L91 can be a potent future vaccine candidate against tuberculosis.
 
Publisher Oxford University Press
 
Date 2011-11
 
Type Article
PeerReviewed
 
Format application/pdf
 
Identifier http://crdd.osdd.net/open/448/1/agrewala2011.pdf
Gowthaman, Uthaman and Singh, Vijender and Zeng, Weiguang and Jain, Shweta and Siddiqui, Kaneez F and Chodisetti, Sathi Babu and Gurram, Rama Krishna and Parihar, Pankaj and Gupta, Pushpa and Gupta, Umesh D and Jackson, David C and Agrewala, J N (2011) Promiscuous peptide of 16 kDa antigen linked to Pam2Cys protects against Mycobacterium tuberculosis by evoking enduring memory T-cell response. The Journal of infectious diseases, 204 (9). pp. 1328-38. ISSN 1537-6613
 
Relation http://jid.oxfordjournals.org/content/204/9/1328.abstract
http://crdd.osdd.net/open/448/