Illumina HiSeq 1500 sequencing; A time-course study of bile duct ligation (BDL)-induced liver fibrosis in rats
A time-course study of bile duct ligation (BDL)-induced liver fibrosis in rats
To induce hepatic fibrosis, Male Sprague Dawley rats (9-12 weeks of age and 380-420 g of weight upon arrival, supplied by Beijing Vital River laboratory animal Co., Ltd.) underwent surgery of bile duct ligation (BDL). The bile ducts of Sprague-Dawley rats were ligated after 12 hours of fasting and water deprivation. Rat liver samples were collected from three groups of rats at week 1, 2 and 5 after BDL surgery. Three control groups of rats underwent sham operation, including bile duct mobilization, but without BDL. Three biological replicates were used for each group. Frozen rat liver tissue (~ 2 mm cube) was lysed and homogenized using Trizol reagent in a Qiagen TissueLyser II. After phase separation of the homogenate, the upper aqueous phase was subject to total RNA purification using Qiagen RNeasy Mini spin column with extensive on-column DNase I digestion. Purified total RNA samples were analyzed by Agilent Bioanalyzer RNA 6000 Nano assay and quantified by Qubit RNA assay. For construction of sequencing libraries, 1 ug of total RNA (RIN > 8) was subject to Illumina TruSeq Stranded Total RNA Sample Prep kit with Ribo-Zero Gold. Libraries were analyzed by Bioanalyzer High Sensitivity DNA assay and quantified by Qubit DNA assay.
Experimental Factor: injury
sham
Experimental Factor: disease
normal
Experimental Factor: time
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