Title : Regulation of cytochrome P450 2C11 (CYP2C11) gene expression by interleukin-1, sphingomyelin hydrolysis, and ceramides in rat hepatocytes.

Pub. Date : 1995 Oct 20

PMID : 7559661






9 Functional Relationships(s)
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1 Regulation of cytochrome P450 2C11 (CYP2C11) gene expression by interleukin-1, sphingomyelin hydrolysis, and ceramides in rat hepatocytes. Ceramides cytochrome P450, subfamily 2, polypeptide 11 Rattus norvegicus
2 Regulation of cytochrome P450 2C11 (CYP2C11) gene expression by interleukin-1, sphingomyelin hydrolysis, and ceramides in rat hepatocytes. Ceramides cytochrome P450, subfamily 2, polypeptide 11 Rattus norvegicus
3 We have examined the role of sphingomyelin hydrolysis to ceramide in the suppression of CYP2C11, a major constitutive form of cytochrome P450, by interleukin-1. Ceramides cytochrome P450, subfamily 2, polypeptide 11 Rattus norvegicus
4 Treatment of the cells with either N-acetyl-D-erythro-sphingosine (C2-ceramide) or bacterial sphingomyelinase suppressed the expression of CYP2C11 and induced the expression of the interleukin-1-responsive alpha 1-acid glycoprotein mRNA. N-acetylsphingosine cytochrome P450, subfamily 2, polypeptide 11 Rattus norvegicus
5 Treatment of the cells with either N-acetyl-D-erythro-sphingosine (C2-ceramide) or bacterial sphingomyelinase suppressed the expression of CYP2C11 and induced the expression of the interleukin-1-responsive alpha 1-acid glycoprotein mRNA. N-acetylsphingosine cytochrome P450, subfamily 2, polypeptide 11 Rattus norvegicus
6 N-Acetyl-D-erythro-sphinganine mimicked the effect of C2-ceramide on CYP2C11, but not on alpha 1-acid glycoprotein expression. n-acetyl-d-erythro-sphinganine cytochrome P450, subfamily 2, polypeptide 11 Rattus norvegicus
7 N-Acetyl-D-erythro-sphinganine mimicked the effect of C2-ceramide on CYP2C11, but not on alpha 1-acid glycoprotein expression. N-acetylsphingosine cytochrome P450, subfamily 2, polypeptide 11 Rattus norvegicus
8 These results are consistent with a role for ceramide or a related sphingolipid in mediating the down-regulation of CYP2C11, the induction of alpha 1-acid glycoprotein, and perhaps other cellular effects of interleukin-1 in hepatocytes. Ceramides cytochrome P450, subfamily 2, polypeptide 11 Rattus norvegicus
9 These results are consistent with a role for ceramide or a related sphingolipid in mediating the down-regulation of CYP2C11, the induction of alpha 1-acid glycoprotein, and perhaps other cellular effects of interleukin-1 in hepatocytes. Sphingolipids cytochrome P450, subfamily 2, polypeptide 11 Rattus norvegicus