RGD Reference Report - Apolipoprotein E gene polymorphisms are associated with psoriasis but do not determine disease response to acitretin. - Rat Genome Database

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Apolipoprotein E gene polymorphisms are associated with psoriasis but do not determine disease response to acitretin.

Authors: Campalani, E  Allen, MH  Fairhurst, D  Young, HS  Mendonca, CO  Burden, AD  Griffiths, CE  Crook, MA  Barker, JN  Smith, CH 
Citation: Campalani E, etal., Br J Dermatol. 2006 Feb;154(2):345-52.
RGD ID: 7495788
Pubmed: PMID:16433808   (View Abstract at PubMed)
DOI: DOI:10.1111/j.1365-2133.2005.06950.x   (Journal Full-text)

BACKGROUND: Psoriasis is associated with abnormal plasma lipid metabolism and a high frequency of cardiovascular events. Increased lipid levels are also seen in patients with psoriasis treated with acitretin. Apolipoprotein E (ApoE) variants have been linked to hypertriglyceridaemia and hypercholesterolaemia in normal individuals. Two coding single nucleotide polymorphisms at +3937 and +4075 define the three common ApoE alleles e2, e3 and e4. OBJECTIVES: To test the hypothesis that particular ApoE polymorphism(s) are associated with psoriasis and that specific ApoE allelic variant(s) may be a marker for predicting disease response to acitretin. METHODS: DNA was genotyped for ApoE polymorphisms using a radioactive hybridization technique in cohorts of patients with psoriasis, including patients with chronic plaque psoriasis (CPP, n = 212), guttate psoriasis (GP, n = 94), palmoplantar pustulosis (PPP, n = 101), controls (n = 137), acitretin responders (n =106) and acitretin nonresponders (n = 84). RESULTS: The frequency of the e4 allele (+3937C/+4075C) was significantly higher in patients with CPP and GP than in controls (P = 0.008 and P = 0.02, respectively). There was no significant difference in allele frequencies between patients with PPP and controls. Allelic distribution was similar in acitretin responders and nonresponders. CONCLUSIONS: These data demonstrate an association between the Apo e4 allele and CPP and GP, suggesting a possible pathogenic role for ApoE in psoriasis. Our results do not support a link between disease response to acitretin and the e2, e3 or e4 allelic variants of ApoE.

RGD Manual Disease Annotations    Click to see Annotation Detail View
TermQualifierEvidenceWithReferenceNotesSourceOriginal Reference(s)
psoriasis susceptibilityIAGP 7495788DNA:SNP: :3937C>T(human)RGD 
psoriasis susceptibilityISOAPOE (Homo sapiens)7495788; 7495788DNA:SNP: :3937C>T(human)RGD 

Objects Annotated

Genes (Rattus norvegicus)
Apoe  (apolipoprotein E)

Genes (Mus musculus)
Apoe  (apolipoprotein E)

Genes (Homo sapiens)
APOE  (apolipoprotein E)


Additional Information