Details of the Drug Combination

General Information of Drug Combination (ID: DCTXG0P)

• Drug Combination Name: Metformin + RTB101
• Indication: Ewing sarcoma-peripheral primitive neuroectodermal tumour; Status: Investigative [1]
• Component Drugs:
  Metformin (DM89QE1): Small molecular drug
  RTB101 (DM62QTW): Small molecular drug
• High-throughput Screening Result:
  Testing Cell Line: ES2
  Zero Interaction Potency (ZIP) Score: 6.22
  Bliss Independence Score: 6.93
  Loewe Additivity Score: 4.78
  LHighest Single Agent (HSA) Score: 7.83

Molecular Interaction Atlas of This Drug Combination

Indication(s) of Metformin

Disease Entry	ICD 11	Status	REF
Colorectal carcinoma	N.A.	Approved	[2]
Non-insulin dependent diabetes	5A11	Approved	[2]
Ovarian serous cystadenocarcinoma	N.A.	Approved	[2]
Prostate carcinoma	N.A.	Approved	[2]
Type-2 diabetes	5A11	Approved	[3]
Coronavirus Disease 2019 (COVID-19)	1D6Y	Investigative	[4]

Metformin Interacts with 3 DTT Molecule(s)

DTT Name	DTT ID	UniProt ID	Mode of Action	REF
Acetyl-CoA carboxylase 2 (ACACB)	TTY84UG	ACACB_HUMAN	Activator	[7]
Solute carrier family 47 member 1 (SLC47A1)	TTMHCGA	S47A1_HUMAN	Modulator	[8]
HUMAN mannose receptor (MRC1)	TTKV8W5	MRC1_HUMAN	Inhibitor	[4]

Metformin 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]
Organic cation transporter 2 (SLC22A2)	DT9IDPW	S22A2_HUMAN	Substrate	[10]
Multidrug and toxin extrusion protein 1 (SLC47A1)	DTZGT0P	S47A1_HUMAN	Substrate	[11]
Organic cation transporter 3 (SLC22A3)	DT6201N	S22A3_HUMAN	Substrate	[12]
Organic cation transporter 1 (SLC22A1)	DTT79CX	S22A1_HUMAN	Substrate	[10]
Multidrug and toxin extrusion protein 2 (SLC47A2)	DT3TX4H	S47A2_HUMAN	Substrate	[13]
Thiamine transporter 1 (SLC19A2)	DTLA4Q2	S19A2_HUMAN	Substrate	[14]
Thiamine transporter 2 (SLC19A3)	DT39CEA	S19A3_HUMAN	Substrate	[14]
Equilibrative nucleoside transporter 4 (SLC29A4)	DT3EAQP	S29A4_HUMAN	Substrate	[15]

Indication(s) of RTB101

Disease Entry	ICD 11	Status	REF
Respiratory tract infection	CA45	Phase 3	[5]
Coronavirus Disease 2019 (COVID-19)	1D6Y	Phase 2	[6]

RTB101 Interacts with 1 DTT Molecule(s)

DTT Name	DTT ID	UniProt ID	Mode of Action	REF
CREB-regulated transcription coactivator 1 (TORC1)	TT4GO0F	CRTC1_HUMAN	Inhibitor	[16]

Test Results of This Drug Combination in Other Disease Systems

Indication	DrugCom ID	Cell Line	Status	REF
Adenocarcinoma	DC4RKRJ	NCIH2122	Investigative	[1]
Adenocarcinoma	DCU8GWO	NCIH520	Investigative	[1]
Adenocarcinoma	DCB3ONA	HT29	Investigative	[1]
Breast and ovarian cancer syndrome	DCKNIBB	UWB1289	Investigative	[17]
Breast and ovarian cancer syndrome	DCEU735	UWB1289+BRCA1	Investigative	[17]
Breast carcinoma	DCNDSDS	OCUBM	Investigative	[17]
Carcinoma	DCOJWZS	OV90	Investigative	[17]
Invasive ductal carcinoma	DCE25JH	T-47D	Investigative	[17]

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] Metformin FDA Label
• [3] Drugs@FDA. U.S. Food and Drug Administration. U.S. Department of Health & Human Services. 2015
• [4] A SARS-CoV-2-Human Protein-Protein Interaction Map Reveals Drug Targets and Potential Drug-Repurposing. March 2020
• [5] ClinicalTrials.gov (NCT04139915) Effect of RTB101 on Illness Associated With Respiratory Tract Infections in the Elderly. U.S. National Institutes of Health.
• [6] ClinicalTrials.gov (NCT04409327) Phase 2 Study to Determine if RTB101 Reduces the Severity of COVID-19 in Older Adults Residing in Nursing Homes. U.S. National Institutes of Health.
• [7] AMP-activated protein kinase-dependent and -independent mechanisms underlying in vitro antiglioma action of compound C. Biochem Pharmacol. 2009 Jun 1;77(11):1684-93.
• [8] Molecular cloning, functional characterization and tissue distribution of rat H+/organic cation antiporter MATE1. Pharm Res. 2006 Aug;23(8):1696-701.
• [9] Role of human placental apical membrane transporters in the efflux of glyburide, rosiglitazone, and metformin. Am J Obstet Gynecol. 2010 Apr;202(4):383.e1-7.
• [10] Metformin is a superior substrate for renal organic cation transporter OCT2 rather than hepatic OCT1. Drug Metab Pharmacokinet. 2005 Oct;20(5):379-86.
• [11] Human multidrug and toxin extrusion 1 (MATE1/SLC47A1) transporter: functional characterization, interaction with OCT2 (SLC22A2), and single nucleotide polymorphisms. Am J Physiol Renal Physiol. 2010 Apr;298(4):F997-F1005.
• [12] Expression of organic cation transporters OCT1 (SLC22A1) and OCT3 (SLC22A3) is affected by genetic factors and cholestasis in human liver. Hepatology. 2009 Oct;50(4):1227-40.
• [13] Substrate specificity of MATE1 and MATE2-K, human multidrug and toxin extrusions/H(+)-organic cation antiporters. Biochem Pharmacol. 2007 Jul 15;74(2):359-71.
• [14] Metformin Is a Substrate and Inhibitor of the Human Thiamine Transporter, THTR-2 (SLC19A3). Mol Pharm. 2015 Dec 7;12(12):4301-10.
• [15] Metformin: from mechanisms of action to therapies. Cell Metab. 2014 Dec 2;20(6):953-66.
• [16] Anti-ageing pipeline starts to mature.Nat Rev Drug Discov. 2018 Sep;17(9):609-612.
• [17] Biologically active neutrophil chemokine pattern in tonsillitis.Clin Exp Immunol. 2004 Mar;135(3):511-8. doi: 10.1111/j.1365-2249.2003.02390.x.