both the induction of cytochrome p1-450 monooxygenase activity ( ec50 values approximately 1 nm ) and immunosuppressive responses elicited by tcdd in hute cells were concentration-dependent and stereospecific ( as judged by the relative activities of chlorinated dibenzo-p-dioxin and dibenzofuran isomers ) , indicating involvement of the ah receptor which was detected in all hute strains examined .
C0052441
ah receptor
C0086418
hute