Time-resolved effect of interferon-alpha 2a on activities of nuclear factor kappa B, pregnane X receptor and on drug disposition genes
Interferon-alpha (IFN-α) is suggested to cause pharmacokinetic drug interactions by lowering expression of drug disposition genes through affecting the activities of nuclear factor kappa B (NF-ĸB) and pregnane X receptor (PXR). The time-resolved impact of IFN-α 2a (1000 U/mL; 5000 U/mL; 2 h to 30 h)...
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| Main Authors: | , , , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
28 May 2021
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| In: |
Pharmaceutics
Year: 2021, Volume: 13, Issue: 6, Pages: 1-11 |
| ISSN: | 1999-4923 |
| DOI: | 10.3390/pharmaceutics13060808 |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.3390/pharmaceutics13060808 Verlag, lizenzpflichtig, Volltext: https://www.mdpi.com/1999-4923/13/6/808 
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| Author Notes: | Dirk Theile, Lelia Wagner, Cindy Bay, Walter Emil Haefeli and Johanna Weiss |
| Summary: | Interferon-alpha (IFN-α) is suggested to cause pharmacokinetic drug interactions by lowering expression of drug disposition genes through affecting the activities of nuclear factor kappa B (NF-ĸB) and pregnane X receptor (PXR). The time-resolved impact of IFN-α 2a (1000 U/mL; 5000 U/mL; 2 h to 30 h) on the activities of NF-ĸB and PXR and mRNA expression (5000 U/mL; 24 h, 48 h) of selected drug disposition genes and on cytochrome P450 (CYP3A4) activity in LS180 cells (5000 U/mL; 24 h, 48 h) was evaluated using luciferase-based reporter gene assays, reverse transcription polymerase chain reaction, and luminescence-based CYP3A4 activity assays. The cross-talk between NF-ĸB activation and PXR suppression was evaluated by NF-ĸB blockage (10 µM parthenolide). IFN-α 2a initially (2 h, 6 h) enhanced NF-ĸB activity 2-fold and suppressed PXR activity by 30%. mRNA of CYP3A4 was halved, whereas UGT1A1 was increased (1.35-fold) after 24 h. After 48 h, ABCB1 expression was increased (1.76-fold). CYP3A4 activity remained unchanged after 24 h, but was enhanced after 48 h (1.35-fold). IFN-α 2a demonstrated short-term suppressive effects on PXR activity and CYP3A4 mRNA expression, likely mediated by activated NF-ĸB. Longer exposure enhanced CYP3A4 activity. Clinical trials should evaluate the relevance by investigating the temporal effects of IFN-α on CYP3A4 using a sensitive marker substrate. |
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| Item Description: | Gesehen am 14.07.2021 |
| Physical Description: | Online Resource |
| ISSN: | 1999-4923 |
| DOI: | 10.3390/pharmaceutics13060808 |