Details of the Drug Combination

General Information of Drug Combination (ID: DCCKQ6E)

• Drug Combination Name: Letrozole + Vincristine
• Indication: Lung adenocarcinoma; Status: Investigative [1]
• Component Drugs:
  Letrozole (DMH07Y3): Small molecular drug
  Vincristine (DMINOX3): Small molecular drug
• High-throughput Screening Result:
  Testing Cell Line: HOP-62
  Zero Interaction Potency (ZIP) Score: 2.91
  Bliss Independence Score: 4.58
  Loewe Additivity Score: 5.73
  LHighest Single Agent (HSA) Score: 6.88

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 Vincristine

Disease Entry	ICD 11	Status	REF
Acute lymphoblastic leukaemia	2A85	Approved	[4]
Adult kidney Wilms tumor	N.A.	Approved	[5]
Beckwith-Wiedemann syndrome	N.A.	Approved	[5]
Burkitt lymphoma	N.A.	Approved	[5]
Central nervous system neoplasm	N.A.	Approved	[5]
Childhood acute lymphoblastic leukemia	N.A.	Approved	[5]
Childhood kidney Wilms tumor	N.A.	Approved	[5]
Hamartoma	N.A.	Approved	[5]
Kidney neoplasm	N.A.	Approved	[5]
Leukemia	N.A.	Approved	[5]
MALT lymphoma	N.A.	Approved	[5]
Nodal marginal zone lymphoma	2A85.0	Approved	[5]
Plasma cell myeloma	2A83.1	Approved	[5]
Primitive neuroectodermal tumor	N.A.	Approved	[5]
Splenic marginal zone lymphoma	N.A.	Approved	[5]
Testicular lymphoma	N.A.	Approved	[5]
Wilms tumor	N.A.	Approved	[5]
Classic Hodgkin lymphoma	N.A.	Investigative	[5]
Follicular lymphoma	2A80	Investigative	[5]
Neuroblastoma	2D11.2	Investigative	[5]

Vincristine Interacts with 1 DTT Molecule(s)

DTT Name	DTT ID	UniProt ID	Mode of Action	REF
Tubulin beta (TUBB)	TTYFKSZ	NOUNIPROTAC	Modulator	[20]

Vincristine Interacts with 4 DTP Molecule(s)

DTP Name	DTP ID	UniProt ID	Mode of Action	REF
Multidrug resistance-associated protein 1 (ABCC1)	DTSYQGK	MRP1_HUMAN	Substrate	[21]
Multidrug resistance-associated protein 2 (ABCC2)	DTFI42L	MRP2_HUMAN	Substrate	[22]
P-glycoprotein 1 (ABCB1)	DTUGYRD	MDR1_HUMAN	Substrate	[23]
Breast cancer resistance protein (ABCG2)	DTI7UX6	ABCG2_HUMAN	Substrate	[24]

Vincristine Interacts with 3 DME Molecule(s)

DME Name	DME ID	UniProt ID	Mode of Action	REF
Cytochrome P450 3A4 (CYP3A4)	DE4LYSA	CP3A4_HUMAN	Metabolism	[25]
Cytochrome P450 3A5 (CYP3A5)	DEIBDNY	CP3A5_HUMAN	Metabolism	[25]
Cytochrome P450 3A7 (CYP3A7)	DERD86B	CP3A7_HUMAN	Metabolism	[26]

References

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• [2] Letrozole FDA Label
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• [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: 6785).
• [5] Vincristine FDA Label
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• [18] Synergistic activity of letrozole and sorafenib on breast cancer cells. Breast Cancer Res Treat. 2010 Nov;124(1):79-88. doi: 10.1007/s10549-009-0714-5. Epub 2010 Jan 7.
• [19] Comparison of lanosterol-14 alpha-demethylase (CYP51) of human and Candida albicans for inhibition by different antifungal azoles. Toxicology. 2006 Nov 10;228(1):24-32. doi: 10.1016/j.tox.2006.08.007. Epub 2006 Aug 12.
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• [21] Interaction of plant cannabinoids with the multidrug transporter ABCC1 (MRP1). Eur J Pharmacol. 2008 Sep 4;591(1-3):128-31.
• [22] Mammalian drug efflux transporters of the ATP binding cassette (ABC) family in multidrug resistance: A review of the past decade. Cancer Lett. 2016 Jan 1;370(1):153-64.
• [23] L-type calcium channel blockers reverse docetaxel and vincristine-induced multidrug resistance independent of ABCB1 expression in human lung cancer cell lines. Toxicol Lett. 2010 Feb 15;192(3):408-18.
• [24] Mutant Gly482 and Thr482 ABCG2 mediate high-level resistance to lipophilic antifolates. Cancer Chemother Pharmacol. 2006 Dec;58(6):826-34.
• [25] Association of CYP3A5 expression and vincristine neurotoxicity in pediatric malignancies in Turkish population. J Pediatr Hematol Oncol. 2017 Aug;39(6):458-462.
• [26] Drug Interactions Flockhart Table