Details of the Drug Combination

General Information of Drug Combination (ID: DC9BSG5)

• Drug Combination Name: Letrozole + Idarubicin
• Indication: Colon adenocarcinoma; Status: Investigative [1]
• Component Drugs:
  Letrozole (DMH07Y3): Small molecular drug
  Idarubicin (DMM0XGL): Small molecular drug
• High-throughput Screening Result:
  Testing Cell Line: COLO 205
  Zero Interaction Potency (ZIP) Score: 0.49
  Bliss Independence Score: 2.97
  Loewe Additivity Score: 0.54
  LHighest Single Agent (HSA) Score: 1.16

Molecular Interaction Atlas of This Drug Combination

Indication(s) of Letrozole

Disease Entry	ICD 11	Status	REF
Estrogen-receptor positive breast cancer	N.A.	Approved	[2]
Hormonally-responsive breast cancer	2C60-2C65	Approved	[3]

Letrozole Interacts with 1 DTT Molecule(s)

DTT Name	DTT ID	UniProt ID	Mode of Action	REF
Aromatase (CYP19A1)	TTSZLWK	CP19A_HUMAN	Inhibitor	[6]

Letrozole Interacts with 3 DME Molecule(s)

DME Name	DME ID	UniProt ID	Mode of Action	REF
Cytochrome P450 3A4 (CYP3A4)	DE4LYSA	CP3A4_HUMAN	Metabolism	[7]
Aromatase (CYP19A1)	DEQX145	CP19A_HUMAN	Metabolism	[8]
Cytochrome P450 2A6 (CYP2A6)	DEJVYAZ	CP2A6_HUMAN	Metabolism	[9]

Letrozole Interacts with 18 DOT Molecule(s)

DOT Name	DOT ID	UniProt ID	Mode of Action	REF
Aromatase (CYP19A1)	OTZ6XF74	CP19A_HUMAN	Decreases Activity	[10]
Cytochrome P450 3A4 (CYP3A4)	OTQGYY83	CP3A4_HUMAN	Increases Oxidation	[11]
Cytochrome P450 2A6 (CYP2A6)	OT52TWG3	CP2A6_HUMAN	Increases Oxidation	[11]
Adenylate kinase isoenzyme 1 (AK1)	OT614AR3	KAD1_HUMAN	Increases ADR	[12]
Dickkopf-related protein 1 (DKK1)	OTRDLUSP	DKK1_HUMAN	Increases Expression	[13]
Follitropin subunit beta (FSHB)	OTGLS283	FSHB_HUMAN	Increases Expression	[14]
Lutropin subunit beta (LHB)	OT5GBOVJ	LSHB_HUMAN	Increases Expression	[14]
Progesterone receptor (PGR)	OT0FZ3QE	PRGR_HUMAN	Decreases Expression	[15]
Leukemia inhibitory factor (LIF)	OTO46S5S	LIF_HUMAN	Increases Expression	[13]
Gap junction alpha-1 protein (GJA1)	OTT94MKL	CXA1_HUMAN	Decreases Expression	[16]
G1/S-specific cyclin-D1 (CCND1)	OT8HPTKJ	CCND1_HUMAN	Decreases Expression	[17]
G1/S-specific cyclin-D2 (CCND2)	OTDULQF9	CCND2_HUMAN	Decreases Expression	[17]
Cyclin-dependent kinase inhibitor 1 (CDKN1A)	OTQWHCZE	CDN1A_HUMAN	Increases Expression	[18]
Leukemia inhibitory factor receptor (LIFR)	OT36W9O5	LIFR_HUMAN	Increases Expression	[13]
Proliferation marker protein Ki-67 (MKI67)	OTA8N1QI	KI67_HUMAN	Decreases Expression	[15]
Small ribosomal subunit protein eS6 (RPS6)	OTT4D1LN	RS6_HUMAN	Decreases Phosphorylation	[17]
Lanosterol 14-alpha demethylase (CYP51A1)	OTAYHG9C	CP51A_HUMAN	Decreases Activity	[19]
Fibroblast growth factor 22 (FGF22)	OTVIX6J0	FGF22_HUMAN	Increases Expression	[13]

Indication(s) of Idarubicin

Disease Entry	ICD 11	Status	REF
Acute myelogenous leukaemia	2A41	Approved	[4]
Acute myeloid leukaemia	2A60	Approved	[5]
Adult acute monocytic leukemia	N.A.	Approved	[4]
Childhood acute megakaryoblastic leukemia	N.A.	Approved	[4]
Leukemia	N.A.	Approved	[4]

Idarubicin Interacts with 1 DTT Molecule(s)

DTT Name	DTT ID	UniProt ID	Mode of Action	REF
DNA topoisomerase II (TOP2)	TT0IHXV	TOP2A_HUMAN; TOP2B_HUMAN	Modulator	[21]

Idarubicin Interacts with 3 DTP Molecule(s)

DTP Name	DTP ID	UniProt ID	Mode of Action	REF
Multidrug resistance-associated protein 1 (ABCC1)	DTSYQGK	MRP1_HUMAN	Substrate	[22]
P-glycoprotein 1 (ABCB1)	DTUGYRD	MDR1_HUMAN	Substrate	[23]
Breast cancer resistance protein (ABCG2)	DTI7UX6	ABCG2_HUMAN	Substrate	[23]

Idarubicin Interacts with 2 DME Molecule(s)

DME Name	DME ID	UniProt ID	Mode of Action	REF
Cytochrome P450 2D6 (CYP2D6)	DECB0K3	CP2D6_HUMAN	Metabolism	[24]
Cytochrome P450 2C9 (CYP2C9)	DE5IED8	CP2C9_HUMAN	Metabolism	[24]

Idarubicin Interacts with 9 DOT Molecule(s)

DOT Name	DOT ID	UniProt ID	Mode of Action	REF
Estrogen receptor (ESR1)	OTKLU61J	ESR1_HUMAN	Decreases Activity	[20]
Heme oxygenase 1 (HMOX1)	OTC1W6UX	HMOX1_HUMAN	Increases Expression	[25]
Androgen receptor (AR)	OTUBKAZZ	ANDR_HUMAN	Increases Activity	[20]
Natriuretic peptides B (NPPB)	OTSN2IPY	ANFB_HUMAN	Increases Expression	[26]
Peroxisome proliferator-activated receptor gamma (PPARG)	OTHMARHO	PPARG_HUMAN	Decreases Activity	[20]
Caspase-3 (CASP3)	OTIJRBE7	CASP3_HUMAN	Increases Activity	[27]
Peroxisome proliferator-activated receptor delta (PPARD)	OTI4WTOP	PPARD_HUMAN	Decreases Activity	[20]
Potassium voltage-gated channel subfamily H member 2 (KCNH2)	OTZX881H	KCNH2_HUMAN	Decreases Activity	[28]
Bile acid receptor (NR1H4)	OTWZLPTB	NR1H4_HUMAN	Decreases Activity	[20]

Test Results of This Drug Combination in Other Disease Systems

Indication	DrugCom ID	Cell Line	Status	REF
Glioblastoma?	DC6JIXU	T98G	Investigative	[29]
Glioma	DC081KB	SF-539	Investigative	[29]
Minimally invasive lung adenocarcinoma	DCDT96O	NCI-H322M	Investigative	[29]
Ovarian serous cystadenocarcinoma	DC3RO0Z	SK-OV-3	Investigative	[29]

References

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• [4] Idarubicin FDA Label
• [5] 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: 7083).
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• [21] Drugs@FDA. U.S. Food and Drug Administration. U.S. Department of Health & Human Services.
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• [23] Amonafide L-malate is not a substrate for multidrug resistance proteins in secondary acute myeloid leukemia. Leukemia. 2008 Nov;22(11):2110-5.
• [24] In vitro evaluation of cytochrome P450-mediated drug interactions between cytarabine, idarubicin, itraconazole and caspofungin. Hematology. 2004 Jun;9(3):217-21.
• [25] A Quantitative Approach to Screen for Nephrotoxic Compounds In Vitro. J Am Soc Nephrol. 2016 Apr;27(4):1015-28. doi: 10.1681/ASN.2015010060. Epub 2015 Aug 10.
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