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J Infect Dis. 2010 Apr 1;201(7):1084-95. doi: 10.1086/651172.

BBA52 facilitates Borrelia burgdorferi transmission from feeding ticks to murine hosts.

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  • 1Department of Veterinary Medicine, University of Maryland, and Virginia-Maryland Regional College of Veterinary Medicine, College Park, Maryland 20742, USA.

Abstract

Borrelia burgdorferi, the pathogen of Lyme borreliosis, persists in nature through a tick-rodent transmission cycle. A selective assessment of the microbial transcriptome, limited to gene-encoding putative membrane proteins, reveals that bba52 transcription in vivo is strictly confined to the vector-specific portion of the microbial life cycle, with the highest levels of expression noted in feeding ticks and with swift down-regulation noted in mice. bba52 deletion did not affect murine disease as assessed by the genesis of arthritis and carditis or long-term persistence of pathogens in mice or ticks. However, bba52 deficiency did impair microbial transitions between hosts and vector, defects that could be fully rescued when bba52 expression was genetically restored to the original genomic locus. These studies establish that BBA52 facilitates vector-host transitions by the pathogen and therefore is a potential antigenic target for interference with transmission of B. burgdorferi from ticks to mammalian hosts.

PMID:
20170377
[PubMed - indexed for MEDLINE]
PMCID:
PMC2832101
Free PMC Article

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