EspA-Intimin chimeric protein, a candidate vaccine against Escherichia coli O157:H7.

ABSTRACT:

Background and objective

Enterohemorrhagic Escherichia coli (EHEC) O157:H7 is an important enteric pathogen in human causing bloody or nonbloody diarrhea, which may be complicated by hemolytic uremic syndrome (HUS). Cattle are an important reservoir of EHEC. This research aims at vaccination with a divalent chimer protein composed of EspA120 and Intimin 282 and its preventive effect of EHEC O157 colonization in mice rectal epithelium.

Materials and methods

A divalent recombinant EspA-Intimin (EI) protein containing EspA120 and Intimin280 attached with a linker was amplified from a trivalent construct and cloned in pET-28a (+) vector. The immunization was conducted in mice after expression and purification of the recombinant EI (rEI).

Results

Mice subcutaneously immuni

SUBMITTER: Rad HS 

PROVIDER: S-EPMC3895562 | biostudies-literature | 2013 Sep

REPOSITORIES: biostudies-literature