miRNA profiling of putative biomarker candidates in Mycobacterium avium subsp. paratuberculosis-infected cattle

Mycobacterium avium subsp. paratuberculosis (MAP) causes Johne's disease that is a chronic wasting disease in ruminants. Spread of MAP is mainly provoked by a long subclinical stage during which MAP is shed into the environment with feces; accordingly, detection of subclinical animals is very important to its control. Therefore, the current diagnostic methods are not suitable for detection of subclinical animals. In this study, we conducted to develop a diagnostic method for analysis of the expression of genes of prognostic potential biomarker candidates in cattle naturally infected with MAP. We conducted miRNA-Seq to evaluate potential biomarker candidates. Experimental animals were divided into four groups based on fecal MAP PCR, serum ELISA, and clinical sign. Overall design: miRNA-Seq were analyzed in four groups divided into fecal MAP PCR, serum ELISA, and clinical sign.