Effect of the NFIB rs28379954 T>C polymorphism on CYP2D6-catalyzed metabolism of solanidine

© 2024 The Authors. Clinical and Translational Science published by Wiley Periodicals LLC on behalf of American Society for Clinical Pharmacology and Therapeutics..

Cytochrome P450 2D6 (CYP2D6) is important for metabolism of 20%-25% of all clinically used drugs. Many known genetic variants contribute to the large interindividual variability in CYP2D6 metabolism, but much is still unexplained. We recently described that nuclear factor 1B (NFIB) regulates hepatic CYP2D6 expression with the minor allele of NFIB rs28379954 T>C significantly increasing CYP2D6-mediated risperidone metabolism. In this study, we investigated the effect of NFIB T>C on metabolism of solanidine, a dietary CYP2D6 substrate. Analyses of solanidine and metabolites (M414, M416, and M444) were performed by ultra-high performance liquid chromatography-high-resolution mass spectrometry in a cohort of 463 CYP2D6-genotyped patients of which with 58 (12.5%) carried NFIB TC (n = 56) or CC (n = 2). Increased metabolism of solanidine was found in CYP2D6 normal metabolizers (NMs; n = 258, 55.7%) carrying the NFIB C variant (n = 27, 5.8%) with 2.83- and 3.38-fold higher M416-to-solanidine (p = 0.039) and M444-to-solanidine (p = 0.046) ratios, respectively, whereas this effect was not significant among intermediate metabolizers (n = 166, 35.9%) (p ≥ 0.09). Importantly, no effect of the NFIB polymorphism on solanidine metabolism was seen in TC or CC carriers lacking CYP2D6 activity (poor metabolizers, n = 30, 6.5%, p ≥ 0.74). Furthermore, the NFIB polymorphism significantly explained variability in solanidine metabolism (M414 p = 0.013, M416 p = 0.020, and M416 and M444 p = 0.009) in multiple linear regression models for each metabolic ratio in the entire population, correcting for covariates (including CYP2D6 genotypes). Thus, the study confirms the effect of NFIB in regulating CYP2D6 activity, suggesting an about 200% increase in CYP2D6-mediated clearance in NMs being NFIB CT or CC carriers, comprising around 6% of Europeans.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:17

Enthalten in:

Clinical and translational science - 17(2024), 2 vom: 24. Feb., Seite e13743

Sprache:

Englisch

Beteiligte Personen:

Smith, Robert Løvsletten [VerfasserIn]
Wollmann, Birgit M [VerfasserIn]
Størset, Elisabet [VerfasserIn]
Lenk, Hasan Çağın [VerfasserIn]
O'Connell, Kevin S [VerfasserIn]
Kristiansen, Marianne Kringen [VerfasserIn]
Ingelman-Sundberg, Magnus [VerfasserIn]
Molden, Espen [VerfasserIn]

Links:

Volltext

Themen:

Cytochrome P-450 CYP2D6
Diosgenin
EC 1.14.14.1
Journal Article
K49P2K8WLX
NFI Transcription Factors
NFIB protein, human
Research Support, Non-U.S. Gov't
Solanidine
W7801OHM8B

Anmerkungen:

Date Completed 23.02.2024

Date Revised 17.04.2024

published: Print

Citation Status MEDLINE

doi:

10.1111/cts.13743

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM368759946