A Dendritic Cell-Activating Rv1876 Protein Elicits Mycobacterium Bovis BCG-Prime Effect via Th1-Immune Response

Autor: Seunga Choi, Han-Gyu Choi, Yong Woo Back, Hye-Soo Park, Kang-In Lee, Sintayehu Kebede Gurmessa, Thuy An Pham, Hwa-Jung Kim
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Biomolecules, Vol 11, Iss 9, p 1306 (2021)
Druh dokumentu: article
ISSN: 2218-273X
DOI: 10.3390/biom11091306
Popis: The widely administered tuberculosis (TB) vaccine, Bacillus Calmette-Guerin (BCG), is the only licensed vaccine, but has highly variable efficiency against childhood and pulmonary TB. Therefore, the BCG prime-boost strategy is a rational solution for the development of new TB vaccines. Studies have shown that Mycobacterium tuberculosis (Mtb) culture filtrates contain proteins that have promising vaccine potential. In this study, Rv1876 bacterioferritin was identified from the culture filtrate fraction with strong immunoreactivity. Its immunobiological potential has not been reported previously. We found that recombinant Rv1876 protein induced dendritic cells’ (DCs) maturation by MAPK and NF-κB signaling activation, induced a T helper type 1 cell-immune response, and expanded the population of the effector/memory T cell. Boosting BCG with Rv1876 protein enhanced the BCG-primed Th1 immune response and reduced the bacterial load in the lung compared to those of BCG alone. Thus, Rv1876 is a good target for the prime-boost strategy.
Databáze: Directory of Open Access Journals
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