F.M. Riemers

Publications (2)0 Total impact

• Article: Enzymes involved in the conversion of arachidonic acid to eicosanoids in the skin of atopic dogs

  Y.M. Schlotter, F.M. Riemers, V.P.M.G. Rutten, E.F. Knol, T Willemse
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  ABSTRACT: Canineatopic dermatitis (AD), a chronic inflammatory skin disease, shares characteristics with its human counterpart. To get insight into the role of enzymes involved in production of prostaglandin E2 (PGE2) and leukotriene B4 (LTB4), potent inflammatory mediators originating from membrane-derived arachidonic acid (AA), expression of genes encoding these enzymes and receptors was quantified by qPCR in non-lesional and lesional skin from atopic dogs and in healthy skin. Significantly higher mRNA expression of the key enzymes 5-lipoxygenase (5-LO), 5-LO activating protein (FLAP), leukotriene A4 hydrolase (LTA4H) and prostaglandin E synthase 1 (mPGES-1) and their receptors (PGE receptors 2 and 3) were observed. Being responsible for elevated levels of metabolites of the 3-series prostaglandins and the 5-series leukotrienes these enzymes may be interesting targets for therapy that should result in amelioration of clinical signs in canine atopic dermatitis
• Article: Altered expression of fatty acid desaturases in the skin of dogs with atopic dermatitis

  Y.M. Schlotter, V.P.M.G. Rutten, F.M. Riemers, G. Davenport, E.F. Knol, T Willemse
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  ABSTRACT: GLI1 oncogene mediates the effects of the signalling molecule Sonic Hedgehog, involved in the control of differentiation and morphogenesis during embryonic development and postnatal life [1,2]. Methods to modulate GLI1 expression without knocking out the gene have not yet been devised. Since GLI1 is specifically expressed by basal cell carcinoma (BCC) [2,3], which expression is considered a diagnostic hallmark and a pathogenetically meaningful event [4], BCC cells might be valuable to investigate on GLI1 modulation and its consequences.