Journal
TICKS AND TICK-BORNE DISEASES
Volume 11, Issue 3, Pages -Publisher
ELSEVIER GMBH
DOI: 10.1016/j.ttbdis.2019.101369
Keywords
Ixodes scapularis; Acquired tick-immunity; Salivary proteins; Glycoproteins
Categories
Funding
- Steven and Alexandra Cohen Foundation
- NIAID/NIH [STTR R41AI45778]
- John Monsky and Jennifer Weiss Monsky Lyme Disease Research Fund
- Spanish Ministry of Economy and Competitiveness [SEV2016-0644]
- [R21 AI128182]
- [PO1 AI138949P01]
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Ticks and tick-borne diseases are on the rise world-wide and vaccines to prevent transmission of tick-borne diseases is an urgent public health need. Tick transmission of pathogens to the mammalian host occurs during tick feeding. Therefore, it is reasoned that vaccine targeting of tick proteins essential for feeding would thwart tick feeding and consequently prevent pathogen transmission. The phenomenon of acquired tick-immunity, wherein, repeated tick infestations of non-natural hosts results in the development of host immune responses detrimental to tick feeding has served as a robust paradigm in the pursuit of tick salivary antigens that may be vaccine targeted. While several salivary antigens have been identified, immunity elicited against these antigens have only provided modest tick rejection. This has raised the possibility that acquired tick-immunity is directed against tick components other than tick salivary antigens. Using Ixodes scapularis, the blacklegged tick, that vectors several human pathogens, we demonstrate that immunity directed against tick salivary glycoproteins is indeed sufficient to recapitulate the phenomenon of tick-resistance. These observations emphasize the utility of tick salivary glycoproteins as viable vaccine targets to thwart tick feeding and direct our search for anti-tick vaccine candidates.
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