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  • Title: Quantitative Polymerase Chain Reaction Analysis of the Mouse Cyp2j Subfamily: Tissue Distribution and Regulation.
    Author: Graves JP, Gruzdev A, Bradbury JA, DeGraff LM, Li H, House JS, Hoopes SL, Edin ML, Zeldin DC.
    Journal: Drug Metab Dispos; 2015 Aug; 43(8):1169-80. PubMed ID: 25994032.
    Abstract:
    Members of the cytochrome P450 CYP2J subfamily are expressed in multiple tissues in mice and humans. These enzymes are active in the metabolism of fatty acids to generate bioactive compounds. Herein we report new methods and results for quantitative polymerase chain reaction (qPCR) analysis for the seven genes (Cyp2j5, Cyp2j6, Cyp2j8, Cyp2j9, Cyp2j11, Cyp2j12, and Cyp2j13) of the mouse Cyp2j subfamily. SYBR Green primer sets were developed and compared with commercially available TaqMan primer/probe assays for specificity toward mouse Cyp2j cDNA, and analysis of tissue distribution and regulation of Cyp2j genes. Each TaqMan primer/probe set and SYBR Green primer set were shown to be specific for their intended mouse Cyp2j cDNA. Tissue distribution of the mouse Cyp2j isoforms confirmed similar patterns of expression between the two qPCR methods. Cyp2j5 and Cyp2j13 were highly expressed in male kidneys, and Cyp2j11 was highly expressed in both male and female kidneys. Cyp2j6 was expressed in multiple tissues, with the highest expression in the small intestine and duodenum. Cyp2j8 was detected in various tissues, with highest expression found in the skin. Cyp2j9 was highly expressed in the brain, liver, and lung. Cyp2j12 was predominately expressed in the brain. We also determined the Cyp2j isoform expression in Cyp2j5 knockout mice to determine whether there was compensatory regulation of other Cyp2j isoforms, and we assessed Cyp2j isoform regulation during various inflammatory models, including influenza A, bacterial lipopolysaccharide, house dust mite allergen, and corn pollen. Both qPCR methods detected similar suppression of Cyp2j6 and Cyp2j9 during inflammation in the lung.
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