Pearson’s correlation coefficients (|r| > 0.3) between the TRP-KYN pathway metabolites and cytokine levels (A) and between PASI score and cytokine levels (B) in PSOs

(A) TRP-KYN pathway metabolites Cytokines Correlation coefficient
AA IP-10 0.64
KYN IP-10 0.49
AA FLT3-L 0.38
TRP EGF 0.37
KYN MIG 0.37
AA MDC 0.32
AA MIG 0.32
TRP MIG –0.32
AA MIP-1β 0.31
3HK IL-17F –0.31
KYNA IP-10 0.30
AA Fractalkine 0.30
KYN FLT3-L 0.30
(B) PASI score Cytokines Correlation coefficient
PASI score IL-1RA 0.45
PASI score IL-9 –0.30