Name: Topotecan
Brand: Selleck Chemicals
SKU: S9321
Rating: 5 (25 reviews)

Topotecan(NSC609699,Nogitecan,SKFS 104864A) is an antineoplastic agent used to treat ovarian cancer that works by inhibiting DNA topoisomerases.

Topotecan Chemical Structure

CAS: 123948-87-8

Selleck's Topotecan has been cited by 25 publications

Purity & Quality Control

Batch: Purity: 99.94%

99.94

Topotecan Related Products

Related Targets	Topo I Topo II Topo IV	Click to Expand
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Signaling Pathway

Topoisomerase Signaling Pathway

Choose Selective Topoisomerase Inhibitors

Biological Activity

Description

Topotecan(NSC609699,Nogitecan,SKFS 104864A) is an antineoplastic agent used to treat ovarian cancer that works by inhibiting DNA topoisomerases.

Targets

Topo I ^[1]

In vitro
In vitro	Topotecan exhibits inhibition of outgrowth of the highly invasive and migratory leader cells (LC) population, however, topotecan enrichs the LC subset 20% above the untreated control level.^[2]
Cell Research	Cell lines	LC-T2A-GFP lines
	Concentrations	1 μM
	Incubation Time	72 h
	Method	LC-T2A-GFP lines are seeded at 1200 cells per well of a 384-well plate, adhered overnight, and treated with chemotherapeutics olaparib, rucaparib, paclitaxel, topotecan, carboplatin, cyclophosphamide, cisplatin, and doxorubicin at empirically determined clinically relevant doses (1 μM). Cells are maintained at 37 ℃ with 5% CO₂ in treatment for 72 h. Four focal areas per replicate well were imaged using 4X magnification on a bright field.

In Vivo
In vivo	Topotecan (TPT), at least in part by inhibiting expression of Fli-1, significantly ameliorates lupus nephritis in NZBWF1 mice as effectively or better than cyclophosphamide (CYC).^[3]
Animal Research	Animal Models	NZBWF1 female mice
	Dosages	0.03 mg/kg, 0.1 mg/kg, 0.3mg/kg
	Administration	i.p.

NCT Number	Recruitment	Conditions	Sponsor/Collaborators	Start Date	Phases
Clinical Trial Information (data from https://clinicaltrials.gov, updated on 2024-01-11)
NCT04455139	Terminated	Eye Cancer Retinoblastoma	Prof. Beck Popovic Maja\|University of Lausanne Hospitals	November 15 2021	Phase 2
NCT05083000	Unknown status	COVID-19 Respiratory Infection	National University Hospital Singapore\|Christian Medical College Vellore India	August 16 2021	Phase 1
NCT04156347	Active not recruiting	Retinoblastoma	Targeted Therapy Technologies LLC	June 16 2021	Phase 1
NCT04428879	Recruiting	Retinoblastoma	The Hospital for Sick Children	June 16 2020	Phase 1

References

Chemical Information & Solubility

Molecular Weight	421.45	Formula	C₂₃H₂₃N₃O₅
CAS No.	123948-87-8	SDF	--
Smiles	CCC1(C2=C(COC1=O)C(=O)N3CC4=CC5=C(C=CC(=C5CN(C)C)O)N=C4C3=C2)O
Storage (From the date of receipt)	3 years -20°C powder	Storage of Stock Solutions Aliquot the stock solutions to avoid repeated freeze-thaw cycles	1 year-80°Cin solvent
Storage (From the date of receipt)	3 years -20°C powder		1 month-20°Cin solvent

In vitro
Batch:

DMSO : 84 mg/mL ( (199.31 mM)； Moisture-absorbing DMSO reduces solubility. Please use fresh DMSO.)

Water : ˂1 mg/mL

Ethanol : ˂1 mg/mL

Molecular Weight Calculator

In vivo
Batch:

Add solvents to the product individually and in order.

In vivo Formulation Calculator

Preparing Stock Solutions

Molarity Calculator

Dilution Calculator Molecular Weight Calculator

In vivo Formulation Calculator (Clear solution)

Step 1: Enter information below (Recommended: An additional animal making an allowance for loss during the experiment)

Dosage: mg/kg Average weight of animals: g Dosing volume per animal:μL Number of animals:

Step 2: Enter the in vivo formulation (This is only the calculator, not formulation. Please contact us first if there is no in vivo formulation at the solubility Section.)

% DMSO + % + % Tween 80 + % ddH₂O

%DMSO+ %

Calculation results:

Working concentration: mg/ml;

Method for preparing DMSO master liquid: mg drug pre-dissolved in μL DMSO ( Master liquid concentration mg/mL, Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug. )

Method for preparing in vivo formulation: Take μL DMSO master liquid, next addμL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH₂O, mix and clarify.

Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.

Note: 1. Please make sure the liquid is clear before adding the next solvent.
2. Be sure to add the solvent(s) in order. You must ensure that the solution obtained, in the previous addition, is a clear solution before proceeding to add the next solvent. Physical methods such
as vortex, ultrasound or hot water bath can be used to aid dissolving.

Tech Support

Answers to questions you may have can be found in the inhibitor handling instructions. Topics include how to prepare stock solutions, how to store inhibitors, and issues that need special attention for cell-based assays and animal experiments.

Handling Instructions

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