Growth arrest-specific 6 and cardiometabolic risk factors in patients with psoriasis.
OBJECTIVE
An increased risk for cardiovascular disease with psoriasis has been reported. Growth Arrest-Specific 6 (GAS6) amplifies pro-inflammatory endothelial cell activation via TAM receptors. However, it also inhibits inflammation by multiple mechanisms including phagocytosis. The objective of this study was to investigate whether plasma GAS6 levels are associated with conventional cardiometabolic (CM) risk factors in patients with psoriasis.


METHODS
Forty patients diagnosed with psoriasis (22 male, mean age: 43.3 ± 13.8 years) and 40 age-/sex-matched healthy controls (22 male, mean age: 39.3 ± 8.9 years) were included in the study. CM risk factors (hypertension, hyperlipidemia, diabetes mellitus, and cigarette smoking) were identified. GAS6 levels were measured by ELISA.


RESULTS
There were no significant differences between the plasma GAS6 levels of patients with psoriasis compared to the control group (6.6 ± 2.0 ng/mL, 7.6 ± 2.8 ng/mL, respectively, P > 0.05). However, GAS6 levels of patients with psoriasis having a smoking history (n = 11) were significantly lower than both patients with psoriasis who had no smoking history (n = 29) and controls (5.5 ± 1.7 ng/mL, 6.9 ± 1.9 ng/mL, 7.6 ± 2.8 ng/mL, respectively, P < 0.05). Similarly, psoriasis patients with at least one CM risk factor showed lower GAS6 levels compared to subjects without any CM risk factor (5.7 ± 1.7 ng/mL, 7.3 ± 2.0 ng/mL, P < 0.01). There was no correlation between the GAS6 level, disease duration or PASI score (r = 0.150, -0.150, and P = 0.310, 0.398, respectively).


CONCLUSIONS
This pilot study provides the first evidence in humans for an association between low plasma GAS6 levels and conventional risk factors in psoriasis. Further large scale, prospective studies are needed to confirm these results.
Department of Cardiology, Faculty of Medicine, Marmara University, Istanbul, Turkey.
Murat
M
Sunbul
Zeynep
Z
Cagman
Fethullah
F
Gerin
Zuleyha
Z
Ozgen
Erdal
E
Durmus
Dilek
D
Seckin
Sarfraz
S
Ahmad
Fikriye
F
Uras
Mehmet
M
Agirbasli
D000328:Adult; D015415:Biomarkers / Q000097:blood; D016022:Case-Control Studies; D003430:Cross-Sectional Studies; D015536:Down-Regulation; D005260:Female; D006801:Humans; D036341:Intercellular Signaling Peptides and Proteins / Q000097:blood*; D008297:Male; D024821:Metabolic Syndrome / Q000175:diagnosis / Q000209:etiology*; D008875:Middle Aged; D010865:Pilot Projects; D011565:Psoriasis / Q000097:blood* / Q000150:complications* / Q000175:diagnosis; D012307:Risk Factors; D012907:Smoking / Q000009:adverse effects / Q000097:blood; D000099255:Growth Arrest-Specific Protein 6
D015415:Biomarkers; D036341:Intercellular Signaling Peptides and Proteins; D000099255:Growth Arrest-Specific Protein 6
Atherosclerosis; Growth Arrest-Specific 6; Psoriasis; Risk Factors