| Structural highlights
Function
[NR1I2_HUMAN] Nuclear receptor that binds and is activated by variety of endogenous and xenobiotic compounds. Transcription factor that activates the transcription of multiple genes involved in the metabolism and secretion of potentially harmful xenobiotics, drugs and endogenous compounds. Activated by the antibiotic rifampicin and various plant metabolites, such as hyperforin, guggulipid, colupulone, and isoflavones. Response to specific ligands is species-specific. Activated by naturally occurring steroids, such as pregnenolone and progesterone. Binds to a response element in the promoters of the CYP3A4 and ABCB1/MDR1 genes.[1] [2] [3] [4] [5] [6]
Publication Abstract from PubMed
We disclose the optimization of a high throughput screening hit to yield benzothiazine and tetrahydroquinoline sulfonamides as potent RORgammat inverse agonists. However, a majority of these compounds showed potent activity against pregnane X receptor (PXR) and modest activity against liver X receptor alpha (LXRalpha). Structure-based drug design (SBDD) led to the identification of benzothiazine and tetrahydroquinoline sulfonamide analogs which completely dialed out LXRalpha activity and were less potent at PXR. Pharmacodynamic (PD) data for compound 35 in an IL-23 induced IL-17 mouse model is discussed along with the implications of a high Ymax in the PXR assay for long term preclinical pharmacokinetic (PK) studies.
Identification of bicyclic hexafluoroisopropyl alcohol sulfonamides as retinoic acid receptor-related orphan receptor gamma (RORgamma/RORc) inverse agonists. Employing structure-based drug design to improve pregnane X receptor (PXR) selectivity.,Gong H, Weinstein DS, Lu Z, Duan JJ, Stachura S, Haque L, Karmakar A, Hemagiri H, Raut DK, Gupta AK, Khan J, Camac D, Sack JS, Pudzianowski A, Wu DR, Yarde M, Shen DR, Borowski V, Xie JH, Sun H, D'Arienzo C, Dabros M, Galella MA, Wang F, Weigelt CA, Zhao Q, Foster W, Somerville JE, Salter-Cid LM, Barrish JC, Carter PH, Dhar TGM Bioorg Med Chem Lett. 2018 Jan 15;28(2):85-93. doi: 10.1016/j.bmcl.2017.12.006., Epub 2017 Dec 5. PMID:29233651[7]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Lehmann JM, McKee DD, Watson MA, Willson TM, Moore JT, Kliewer SA. The human orphan nuclear receptor PXR is activated by compounds that regulate CYP3A4 gene expression and cause drug interactions. J Clin Invest. 1998 Sep 1;102(5):1016-23. PMID:9727070 doi:10.1172/JCI3703
- ↑ Zhang J, Kuehl P, Green ED, Touchman JW, Watkins PB, Daly A, Hall SD, Maurel P, Relling M, Brimer C, Yasuda K, Wrighton SA, Hancock M, Kim RB, Strom S, Thummel K, Russell CG, Hudson JR Jr, Schuetz EG, Boguski MS. The human pregnane X receptor: genomic structure and identification and functional characterization of natural allelic variants. Pharmacogenetics. 2001 Oct;11(7):555-72. PMID:11668216
- ↑ Geick A, Eichelbaum M, Burk O. Nuclear receptor response elements mediate induction of intestinal MDR1 by rifampin. J Biol Chem. 2001 May 4;276(18):14581-7. Epub 2001 Jan 31. PMID:11297522 doi:10.1074/jbc.M010173200
- ↑ Li Y, Ross-Viola JS, Shay NF, Moore DD, Ricketts ML. Human CYP3A4 and murine Cyp3A11 are regulated by equol and genistein via the pregnane X receptor in a species-specific manner. J Nutr. 2009 May;139(5):898-904. doi: 10.3945/jn.108.103572. Epub 2009 Mar 18. PMID:19297428 doi:10.3945/jn.108.103572
- ↑ Watkins RE, Maglich JM, Moore LB, Wisely GB, Noble SM, Davis-Searles PR, Lambert MH, Kliewer SA, Redinbo MR. 2.1 A crystal structure of human PXR in complex with the St. John's wort compound hyperforin. Biochemistry. 2003 Feb 18;42(6):1430-8. PMID:12578355 doi:10.1021/bi0268753
- ↑ Teotico DG, Bischof JJ, Peng L, Kliewer SA, Redinbo MR. Structural basis of human pregnane X receptor activation by the hops constituent colupulone. Mol Pharmacol. 2008 Dec;74(6):1512-20. doi: 10.1124/mol.108.050732. Epub 2008 Sep, 2. PMID:18768384 doi:10.1124/mol.108.050732
- ↑ Gong H, Weinstein DS, Lu Z, Duan JJ, Stachura S, Haque L, Karmakar A, Hemagiri H, Raut DK, Gupta AK, Khan J, Camac D, Sack JS, Pudzianowski A, Wu DR, Yarde M, Shen DR, Borowski V, Xie JH, Sun H, D'Arienzo C, Dabros M, Galella MA, Wang F, Weigelt CA, Zhao Q, Foster W, Somerville JE, Salter-Cid LM, Barrish JC, Carter PH, Dhar TGM. Identification of bicyclic hexafluoroisopropyl alcohol sulfonamides as retinoic acid receptor-related orphan receptor gamma (RORgamma/RORc) inverse agonists. Employing structure-based drug design to improve pregnane X receptor (PXR) selectivity. Bioorg Med Chem Lett. 2018 Jan 15;28(2):85-93. doi: 10.1016/j.bmcl.2017.12.006., Epub 2017 Dec 5. PMID:29233651 doi:http://dx.doi.org/10.1016/j.bmcl.2017.12.006
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