CXCL16 and psoriasis: To investigate the role of the innate immune system in metabolic inflammation in psoriasis we examined CXCL16 expression on monocytes in 49 patients with psoriasis (mean age 57 ± 16.8 years, 33% female; mean PASI 18 ± 9.3) and correlated these levels with the extend of skin involvement and associated comorbidities.