Details of the Drug Combination

General Information of Drug Combination (ID: DC4BKX8)

• Drug Combination Name: Sulfapyridine + Chlorzoxazone
• Indication: Chronic myelogenous leukemia; Status: Investigative [1]
• Component Drugs:
  Sulfapyridine (DMIUYFH): Small molecular drug
  Chlorzoxazone (DMCYVDT): Small molecular drug
• High-throughput Screening Result:
  Testing Cell Line: KBM-7
  Zero Interaction Potency (ZIP) Score: 3.11
  Bliss Independence Score: 3.11
  Loewe Additivity Score: 3.9
  LHighest Single Agent (HSA) Score: 3.96

Molecular Interaction Atlas of This Drug Combination

Indication(s) of Sulfapyridine

Disease Entry	ICD 11	Status	REF
Dermatitis herpetiformis	EB44	Approved	[2]

Sulfapyridine Interacts with 1 DTT Molecule(s)

DTT Name	DTT ID	UniProt ID	Mode of Action	REF
Bacterial Dihydropteroate synthetase (Bact folP)	TT4ILYC	DHPS_ECOLI	Inhibitor	[4]

Sulfapyridine Interacts with 1 DME Molecule(s)

DME Name	DME ID	UniProt ID	Mode of Action	REF
RNA cytidine acetyltransferase (hALP)	DEZV4AP	NAT10_HUMAN	Metabolism	[5]

Sulfapyridine Interacts with 6 DOT Molecule(s)

DOT Name	DOT ID	UniProt ID	Mode of Action	REF
Growth-regulated alpha protein (CXCL1)	OT3WCTZV	GROA_HUMAN	Decreases Secretion	[6]
Interleukin-8 (CXCL8)	OTS7T5VH	IL8_HUMAN	Decreases Secretion	[6]
C-C motif chemokine 2 (CCL2)	OTAD2HEL	CCL2_HUMAN	Decreases Secretion	[6]
Metalloproteinase inhibitor 2 (TIMP2)	OT8S1RRP	TIMP2_HUMAN	Increases Expression	[7]
Arylamine N-acetyltransferase 2 (NAT2)	OTBPDQOY	ARY2_HUMAN	Increases Acetylation	[8]
Broad substrate specificity ATP-binding cassette transporter ABCG2 (ABCG2)	OTW8V2V1	ABCG2_HUMAN	Increases Transport	[8]

Indication(s) of Chlorzoxazone

Disease Entry	ICD 11	Status	REF
Acute pain	MG31	Approved	[3]

Chlorzoxazone Interacts with 1 DTT Molecule(s)

DTT Name	DTT ID	UniProt ID	Mode of Action	REF
Calcium-activated potassium channel (KCN)	TTMNI76	NOUNIPROTAC	Activator	[10]

Chlorzoxazone Interacts with 6 DME Molecule(s)

DME Name	DME ID	UniProt ID	Mode of Action	REF
Cytochrome P450 3A4 (CYP3A4)	DE4LYSA	CP3A4_HUMAN	Metabolism	[11]
Cytochrome P450 1A2 (CYP1A2)	DEJGDUW	CP1A2_HUMAN	Metabolism	[12]
Cytochrome P450 2A6 (CYP2A6)	DEJVYAZ	CP2A6_HUMAN	Metabolism	[13]
Cytochrome P450 2D6 (CYP2D6)	DECB0K3	CP2D6_HUMAN	Metabolism	[13]
Cytochrome P450 2E1 (CYP2E1)	DEVDYN7	CP2E1_HUMAN	Metabolism	[14]
Cytochrome P450 102A1 (cyp102)	DE4OGUF	CPXB_BACMB	Metabolism	[15]

Chlorzoxazone Interacts with 3 DOT Molecule(s)

DOT Name	DOT ID	UniProt ID	Mode of Action	REF
Intermediate conductance calcium-activated potassium channel protein 4 (KCNN4)	OTQKQ346	KCNN4_HUMAN	Increases Activity	[16]
Cytochrome P450 1B1 (CYP1B1)	OTYXFLSD	CP1B1_HUMAN	Decreases Activity	[17]
Arylamine N-acetyltransferase 2 (NAT2)	OTBPDQOY	ARY2_HUMAN	Affects Metabolism	[9]

References

• [1] Recurrent recessive mutation in deoxyguanosine kinase causes idiopathic noncirrhotic portal hypertension.Hepatology. 2016 Jun;63(6):1977-86. doi: 10.1002/hep.28499. Epub 2016 Mar 31.
• [2] Drugs@FDA. U.S. Food and Drug Administration. U.S. Department of Health & Human Services. 2015
• [3] URL: http://www.guidetopharmacology.org Nucleic Acids Res. 2015 Oct 12. pii: gkv1037. The IUPHAR/BPS Guide to PHARMACOLOGY in 2016: towards curated quantitative interactions between 1300 protein targets and 6000 ligands. (Ligand id: 2322).
• [4] A confirmatory method for the simultaneous extraction, separation, identification and quantification of Tetracycline, Sulphonamide, Trimethoprim an... J Chromatogr A. 2009 Nov 13;1216(46):8110-6.
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• [6] The effect of sulfasalazine on rheumatoid arthritic synovial tissue chemokine production. Exp Mol Pathol. 2002 Oct;73(2):84-92. doi: 10.1006/exmp.2002.2460.
• [7] Effects of sulfasalazine and its metabolites on steady state messenger RNA concentrations for inflammatory cytokines, matrix metalloproteinases, and tissue inhibitors of metalloproteinase in rheumatoid synovial fibroblasts. J Rheumatol. 2000 Mar;27(3):653-60.
• [8] Pharmacogenetic characterization of sulfasalazine disposition based on NAT2 and ABCG2 (BCRP) gene polymorphisms in humans. Clin Pharmacol Ther. 2008 Jul;84(1):95-103.
• [9] Effects of cigarette smoking and carbon monoxide on chlorzoxazone and caffeine metabolism. Clin Pharmacol Ther. 2003 Nov;74(5):468-74. doi: 10.1016/j.clpt.2003.07.001.
• [10] Chlorzoxazone inhibits contraction of rat thoracic aorta. Eur J Pharmacol. 2006 Sep 18;545(2-3):161-6.
• [11] Summary of information on human CYP enzymes: human P450 metabolism data. Drug Metab Rev. 2002 Feb-May;34(1-2):83-448.
• [12] Inhibitory monoclonal antibodies to human cytochrome P450 1A2: analysis of phenacetin O-deethylation in human liver. Pharmacogenetics. 1998 Oct;8(5):375-82.
• [13] Prediction of human liver microsomal oxidations of 7-ethoxycoumarin and chlorzoxazone with kinetic parameters of recombinant cytochrome P-450 enzymes. Drug Metab Dispos. 1999 Nov;27(11):1274-80.
• [14] Trimethadione metabolism by human liver cytochrome P450: evidence for the involvement of CYP2E1. Xenobiotica. 1998 Nov;28(11):1041-7.
• [15] Wild-type CYP102A1 as a biocatalyst: turnover of drugs usually metabolised by human liver enzymes. J Biol Inorg Chem. 2007 Mar;12(3):313-23.
• [16] Functional and molecular identification of intermediate-conductance Ca(2+)-activated K(+) channels in breast cancer cells: association with cell cycle progression. Am J Physiol Cell Physiol. 2004 Jul;287(1):C125-34. doi: 10.1152/ajpcell.00488.2003. Epub 2004 Feb 25.
• [17] Association of CYP1A1 and CYP1B1 inhibition in in vitro assays with drug-induced liver injury. J Toxicol Sci. 2021;46(4):167-176. doi: 10.2131/jts.46.167.