Details of the Drug Combination

General Information of Drug Combination (ID: DCE81J7)

• Drug Combination Name: Thioguanine + Mercaptopurine
• Indication: Mixed endometrioid and clear cell carcinoma; Status: Investigative [1]
• Component Drugs:
  Thioguanine (DM7NKEV): Small molecular drug
  Mercaptopurine (DMTM2IK): Small molecular drug
• High-throughput Screening Result:
  Testing Cell Line: IGROV1
  Zero Interaction Potency (ZIP) Score: 5.52
  Bliss Independence Score: 6.23
  Loewe Additivity Score: 8.14
  LHighest Single Agent (HSA) Score: 10.24

Molecular Interaction Atlas of This Drug Combination

Indication(s) of Thioguanine

Disease Entry	ICD 11	Status	REF
Acute lymphocytic leukaemia	2B33.3	Approved	[2]
Acute myelogenous leukaemia	2A41	Approved	[3]
Acute myeloid leukaemia	2A60	Approved	[4]
Middle East Respiratory Syndrome (MERS)	1D64	Preclinical	[5]
Severe acute respiratory syndrome (SARS)	1D65	Preclinical	[5]

Thioguanine Interacts with 3 DTT Molecule(s)

DTT Name	DTT ID	UniProt ID	Mode of Action	REF
MERS-CoV papain-like proteinase (PL-PRO)	TTYJOLE	R1AB_CVEMC (854-2740)	Inhibitor	[5]
Inosine-5'-monophosphate dehydrogenase (IMPDH)	TTCAQMW	NOUNIPROTAC	Intercalator	[8]
SARS-CoV papain-like proteinase (PL-PRO)	TTRGHB2	R1AB_CVHSA (819-2740)	Inhibitor	[5]

Thioguanine Interacts with 3 DTP Molecule(s)

DTP Name	DTP ID	UniProt ID	Mode of Action	REF
Breast cancer resistance protein (ABCG2)	DTI7UX6	ABCG2_HUMAN	Substrate	[9]
Multidrug resistance-associated protein 4 (ABCC4)	DTCSGPB	MRP4_HUMAN	Substrate	[10]
Concentrative Na(+)-nucleoside cotransporter 3 (SLC28A3)	DT4YL5R	S28A3_HUMAN	Substrate	[11]

Thioguanine Interacts with 2 DME Molecule(s)

DME Name	DME ID	UniProt ID	Mode of Action	REF
Thiopurine methyltransferase (TPMT)	DEFQ8VO	TPMT_HUMAN	Metabolism	[12]
Hypoxanthine phosphoribosyltransferase (HPRT1)	DEVXTP5	HPRT_HUMAN	Metabolism	[13]

Thioguanine Interacts with 3 DOT Molecule(s)

DOT Name	DOT ID	UniProt ID	Mode of Action	REF
Occludin (OCLN)	OTSUTVWL	OCLN_HUMAN	Decreases Activity	[14]
ATP-binding cassette sub-family C member 5 (ABCC5)	OT34G4US	MRP5_HUMAN	Decreases Response To Substance	[15]
Baculoviral IAP repeat-containing protein 2 (BIRC2)	OTFXFREP	BIRC2_HUMAN	Decreases Response To Substance	[16]

Indication(s) of Mercaptopurine

Disease Entry	ICD 11	Status	REF
Acute lymphoblastic leukaemia	2A85	Approved	[6]
Acute lymphocytic leukaemia	2B33.3	Approved	[2]
Crohn disease	DD70	Phase 4	[7]
Middle East Respiratory Syndrome (MERS)	1D64	Preclinical	[5]
Severe acute respiratory syndrome (SARS)	1D65	Preclinical	[5]

Mercaptopurine Interacts with 4 DTT Molecule(s)

DTT Name	DTT ID	UniProt ID	Mode of Action	REF
MERS-CoV papain-like proteinase (PL-PRO)	TTYJOLE	R1AB_CVEMC (854-2740)	Inhibitor	[5]
Inosine-5'-monophosphate dehydrogenase 1 (IMPDH1)	TTL7C8Q	IMDH1_HUMAN	Inhibitor	[19]
SARS-CoV papain-like proteinase (PL-PRO)	TTRGHB2	R1AB_CVHSA (819-2740)	Inhibitor	[5]
Amidophosphoribosyltransferase (PPAT)	TTZFTY4	PUR1_HUMAN	Breaker	[20]

Mercaptopurine Interacts with 9 DTP Molecule(s)

DTP Name	DTP ID	UniProt ID	Mode of Action	REF
Breast cancer resistance protein (ABCG2)	DTI7UX6	ABCG2_HUMAN	Substrate	[9]
Multidrug resistance-associated protein 4 (ABCC4)	DTCSGPB	MRP4_HUMAN	Substrate	[21]
Multidrug resistance-associated protein 5 (ABCC5)	DTYVM24	MRP5_HUMAN	Substrate	[22]
Organic anion transporter 3 (SLC22A8)	DTVP67E	S22A8_HUMAN	Substrate	[23]
Concentrative nucleoside transporter 2 (SLC28A2)	DT82KPY	S28A2_HUMAN	Substrate	[24]
Concentrative Na(+)-nucleoside cotransporter 3 (SLC28A3)	DT4YL5R	S28A3_HUMAN	Substrate	[11]
Equilibrative nucleoside transporter 1 (SLC29A1)	DTXD1TQ	S29A1_HUMAN	Substrate	[24]
Equilibrative nucleoside transporter 2 (SLC29A2)	DTW78DQ	S29A2_HUMAN	Substrate	[24]
Equilibrative nucleobase transporter 1 (SLC43A3)	DTGBPR5	S43A3_HUMAN	Substrate	[25]

Mercaptopurine Interacts with 3 DME Molecule(s)

DME Name	DME ID	UniProt ID	Mode of Action	REF
UDP-glucuronosyltransferase 1A1 (UGT1A1)	DEYGVN4	UD11_HUMAN	Metabolism	[26]
Cytochrome P450 1A1 (CYP1A1)	DE6OQ3W	CP1A1_HUMAN	Metabolism	[26]
Thiopurine methyltransferase (TPMT)	DEFQ8VO	TPMT_HUMAN	Metabolism	[27]

Mercaptopurine Interacts with 10 DOT Molecule(s)

DOT Name	DOT ID	UniProt ID	Mode of Action	REF
Nuclear receptor subfamily 4 group A member 3 (NR4A3)	OTPBE9R1	NR4A3_HUMAN	Increases ADR	[28]
Superoxide dismutase , mitochondrial (SOD2)	OTIWXGZ9	SODM_HUMAN	Increases Expression	[29]
Glutathione peroxidase 2 (GPX2)	OTXI2NTI	GPX2_HUMAN	Increases Expression	[29]
Glutathione peroxidase 3 (GPX3)	OT6PK94R	GPX3_HUMAN	Increases Expression	[29]
Transcription factor p65 (RELA)	OTUJP9CN	TF65_HUMAN	Affects Localization	[17]
Bcl-2-like protein 1 (BCL2L1)	OTRC5K9O	B2CL1_HUMAN	Decreases Expression	[17]
Molybdenum cofactor sulfurase (MOCOS)	OT0TL3Q5	MOCOS_HUMAN	Decreases Oxidation	[30]
HLA class II histocompatibility antigen, DQ alpha 1 chain (HLA-DQA1)	OTC6GISG	DQA1_HUMAN	Affects Response To Substance	[31]
Major vault protein (MVP)	OTJGHJRB	MVP_HUMAN	Decreases Response To Substance	[32]
Nucleotide triphosphate diphosphatase NUDT15 (NUDT15)	OTX8SZOT	NUD15_HUMAN	Increases Response To Substance	[33]

Test Results of This Drug Combination in Other Disease Systems

Indication	DrugCom ID	Cell Line	Status	REF
Anaplastic large cell lymphoma	DC5VWHV	SR	Investigative	[34]
Adenocarcinoma	DC7CYMZ	NCIH23	Investigative	[1]

References

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• [2] Drugs@FDA. U.S. Food and Drug Administration. U.S. Department of Health & Human Services. 2015
• [3] Thioguanine FDA Label
• [4] 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: 6845).
• [5] Thiopurine analogs and mycophenolic acid synergistically inhibit the papain-like protease of Middle East respiratory syndrome coronavirus. Antiviral Res. 2015 Mar;115:9-16.
• [6] 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: 7226).
• [7] ClinicalTrials.gov (NCT00846703) The GD-2008 ALL Protocol for Childhood Acute Lymphoblastic Leukemia. U.S. National Institutes of Health.
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• [10] Multidrug resistance protein 4 (MRP4/ABCC4) mediates efflux of bimane-glutathione. Int J Biochem Cell Biol. 2004 Feb;36(2):247-57.
• [11] Involvement of the concentrative nucleoside transporter 3 and equilibrative nucleoside transporter 2 in the resistance of T-lymphoblastic cell lines to thiopurines. Biochem Biophys Res Commun. 2006 Apr 28;343(1):208-15.
• [12] Usefulness of thiopurine methyltransferase and thiopurine metabolite analysis in clinical practice in patients with inflammatory bowel diseases. Acta Gastroenterol Belg. 2010 Jul-Sep;73(3):331-5.
• [13] Qualitative and quantitative difference in mutation induction between carbon- and neon-ion beams in normal human cells. Biol Sci Space. 2003 Dec;17(4):302-6.
• [14] The thiopurine methyltransferase genetic polymorphism is associated with thioguanine-related veno-occlusive disease of the liver in children with acute lymphoblastic leukemia. Clin Pharmacol Ther. 2006 Oct;80(4):375-83. doi: 10.1016/j.clpt.2006.07.002.
• [15] The multidrug resistance protein 5 (ABCC5) confers resistance to 5-fluorouracil and transports its monophosphorylated metabolites. Mol Cancer Ther. 2005 May;4(5):855-63.
• [16] Expression and prognostic significance of IAP-family genes in human cancers and myeloid leukemias. Clin Cancer Res. 2000 May;6(5):1796-803.
• [17] CD28-dependent Rac1 activation is the molecular target of azathioprine in primary human CD4+ T lymphocytes. J Clin Invest. 2003 Apr;111(8):1133-45. doi: 10.1172/JCI16432.
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• [20] 6-mercaptopurine (6-MP) induces p53-mediated apoptosis of neural progenitor cells in the developing fetal rodent brain. Neurotoxicol Teratol. 2009 Jul-Aug;31(4):198-202.
• [21] Polymorphisms in multidrug resistance-associated protein gene 4 is associated with outcome in childhood acute lymphoblastic leukemia. Blood. 2009 Aug 13;114(7):1383-6.
• [22] Overexpression of MRP4 (ABCC4) and MRP5 (ABCC5) confer resistance to the nucleoside analogs cytarabine and troxacitabine, but not gemcitabine. Springerplus. 2014 Dec 13;3:732.
• [23] Organic anion transporter 3 is involved in the brain-to-blood efflux transport of thiopurine nucleobase analogs. J Neurochem. 2004 Aug;90(4):931-41.
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• [25] Characterization of 6-Mercaptopurine Transport by the SLC43A3-Encoded Nucleobase Transporter. Mol Pharmacol. 2019 Jun;95(6):584-596.
• [26] Pharmacogenomics in drug-metabolizing enzymes catalyzing anticancer drugs for personalized cancer chemotherapy. Curr Drug Metab. 2007 Aug;8(6):554-62.
• [27] The degree of myelosuppression during maintenance therapy of adolescents with B-lineage intermediate risk acute lymphoblastic leukemia predicts risk of relapse. Leukemia. 2010 Apr;24(4):715-20.
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• [29] Petit E, Langouet S, Akhdar H, Nicolas-Nicolaz C, Guillouzo A, Morel F. Differential toxic effects of azathioprine, 6-mercaptopurine and 6-thioguanine on human hepatocytes. Toxicol In Vitro. 2008;22(3):632-642. [PMID: 18222062]
• [30] Thiopurine-induced toxicity is associated with dysfunction variant of the human molybdenum cofactor sulfurase gene (xanthinuria type II). Toxicol Appl Pharmacol. 2018 Aug 15;353:102-108. doi: 10.1016/j.taap.2018.06.015. Epub 2018 Jun 20.
• [31] HLA-DQA1-HLA-DRB1 variants confer susceptibility to pancreatitis induced by thiopurine immunosuppressants. Nat Genet. 2014 Oct;46(10):1131-4. doi: 10.1038/ng.3093. Epub 2014 Sep 14.
• [32] Sensitization of ABCG2-overexpressing cells to conventional chemotherapeutic agent by sunitinib was associated with inhibiting the function of ABCG2. Cancer Lett. 2009 Jun 28;279(1):74-83. doi: 10.1016/j.canlet.2009.01.027. Epub 2009 Feb 18.
• [33] A common missense variant in NUDT15 confers susceptibility to thiopurine-induced leukopenia. Nat Genet. 2014 Sep;46(9):1017-20. doi: 10.1038/ng.3060. Epub 2014 Aug 10.
• [34] CheMBL Affinity Phenotypic Cellular Interaction Assay ID: CHEMBL1125966