Identification of proteins expressed by Babesia bigemina kinetes.

A new interesting article has been published in Parasit Vectors. 2019 May 28;12(1):271. doi: 10.1186/s13071-019-3531-7. and titled:

Identification of proteins expressed by Babesia bigemina kinetes.

Authors of this article are:

Bohaliga GAR, Johnson WC, Taus NS, Hussein HE, Bastos RG, Suarez CE, Scoles GA, Ueti MW.

A summary of the article is shown below:

BACKGROUND: Babesia bigemina is an apicomplexan parasite transovarially transmitted via Rhipicephalus ticks that infect red blood cells and causes bovine babesiosis, a poorly controlled severe acute disease in cattle. New methods of control are urgently needed, including the development of transmission blocking vaccines (TBV). Babesia bigemina reproduces sexually in the gut of adult female R. microplus upon acquisition following a blood meal. Sexual reproduction results in zygotes that infect gut epithelial cells to transform into kinete stage parasites, which invade tick ovaries and infects the egg mass. The subsequent tick generation transmits B. bigemina upon feeding on bovine hosts. An important limitation for developing novel TBV is that the pattern of protein expression in B. bigemina tick stages, such as the kinete stage, remain essentially uncharacterized.RESULTS: We determined the protein expression profile of three B. bigemina putative tick stage candidates BbiKSP (BBBOND_0206730), CCp2 and CCp3. We found that BbiKSP expression was restricted to B. bigemina kinetes. CCp2 and CCp3, previously shown to be expressed by induced sexual stages, were also expressed by kinetes. Importantly, none of these proteins were expressed by B. bigemina blood stages.CONCLUSIONS: Babesia bigemina kinetes express BbiKSP, CCp2 and CCp3 proteins, therefore, these proteins may play important roles during B. bigemina development within tick hemolymph and may serve as potential candidate targets for the development of TBV.

Check out the article’s website on Pubmed for more information:



This article is a good source of information and a good way to become familiar with topics such as: Babesia bigemina; Kinete; Kinete stage-specific protein; Rhipicephalus microplus; in vitro induced sexual stages.