Tick-borne pathogens induce differential expression of genes promoting cell survival and host resistance in Ixodes ricinus cells.
Parasit Vectors
; 10(1): 81, 2017 02 15.
Article
in En
| MEDLINE
| ID: mdl-28202075
ABSTRACT
BACKGROUND:
There has been an emergence and expansion of tick-borne diseases in Europe, Asia and North America in recent years, including Lyme disease, tick-borne encephalitis and human anaplasmosis. The primary vectors implicated are hard ticks of the genus Ixodes. Although much is known about the host response to these bacterial and viral pathogens, there is limited knowledge of the cellular responses to infection within the tick vector. The bacterium Anaplasma phagocytophilum is able to bypass apoptotic processes in ticks, enabling infection to proceed. However, the tick cellular responses to infection with the flaviviruses tick-borne encephalitis virus (TBEV) and louping ill virus (LIV), which cause tick-borne encephalitis and louping ill respectively, are less clear.RESULTS:
Infection and transcriptional analysis of the Ixodes ricinus tick cell line IRE/CTVM20 with the viruses LIV and TBEV, and the bacterium A. phagocytophilum, identified activation of common and distinct cellular pathways. In particular, commonly-upregulated genes included those that modulate apoptotic pathways, putative anti-pathogen genes, and genes that influence the tick innate immune response, including selective activation of toll genes.CONCLUSION:
These data provide an insight into potential key genes involved in the tick cellular response to viral or bacterial infection, which may promote cell survival and host resistance.Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Ixodes
/
Anaplasma phagocytophilum
/
Encephalitis Viruses, Tick-Borne
/
Host-Pathogen Interactions
Limits:
Animals
Language:
En
Journal:
Parasit Vectors
Year:
2017
Document type:
Article
Affiliation country:
United kingdom