Cladribine (RWJ 26251)
For research use only.
Catalog No.S1199 Synonyms: Leustatin, 2-CdA, 2-chlorodeoxyadenosine, 2-Chloro-2′-deoxyadenosine, CldAdo, Jk 6251, NSC 105014
CAS No. 4291-63-8
Cladribine (RWJ 26251, Leustatin, 2-CdA, 2-chlorodeoxyadenosine, 2-Chloro-2′-deoxyadenosine, CldAdo, Jk 6251, NSC 105014) is an adenosine deaminase inhibitor for U266, RPMI8226, and MM1.S cells with IC50 of approximately 2.43 μM, 0.75 μM, and 0.18 μM, respectively.
Selleck's Cladribine (RWJ 26251) has been cited by 11 publications
Purity & Quality Control
Choose Selective Adenosine Deaminase Inhibitors
|Description||Cladribine (RWJ 26251, Leustatin, 2-CdA, 2-chlorodeoxyadenosine, 2-Chloro-2′-deoxyadenosine, CldAdo, Jk 6251, NSC 105014) is an adenosine deaminase inhibitor for U266, RPMI8226, and MM1.S cells with IC50 of approximately 2.43 μM, 0.75 μM, and 0.18 μM, respectively.|
|Features||Cladribine is primarily active in lymphoid tissues.|
Cladribine exerts remarkable activity in hairy cell leukemia (HCL), a chronic B-cell lymphoproliferative disorder, producing prolonged complete remissions. Cladribine induces accumulation of DNA strand breaks, and subsequently activates the tumor suppressor p53 in lymphocytes. Cladribine may modulate STAT3 activity in MM cells. Cladribine inhibits proliferation/survival of U266, RPMI8226 and MM1.S cells in a dose-dependent manner. While U266 is the least sensitive cell line, MM1.S is the most sensitive one to cladribine. Treatment with cladribine gradually increases the percentage of cells in the G1 phase of the cell cycle and reduces the percentage of cells in S phase. Cladribine appears to increase G2-M phase in U266 cells upon 24 hour-treatment. A dose-dependent increase in apoptosis induced by cladribine is seen in both RPMI8226 and MM1.S cells. Treatment with cladribine at 0.2 μM dramatically induces activation of caspase-3, -8, and -9 and PARP cleavage in a time-dependent manner in MM1.S. Cladribine significantly decreases the phospho-STAT3 (P-STAT3) levels in a dose-dependent manner, but has no effect on the total STAT3 protein levels.  Cladribine possesses concentration-dependent apoptosis-inducing potential in the HSB2 cells.  Cladribine inhibits growth of primary mast cell (MC) and the MC line HMC-1 in a dose-dependent manner, with lower IC50 values recorded in HMC-1.2 cells harboring KIT D816V compared to HMC-1.1 cells lacking KIT D816V.  Cladribine decreases the migratory capacity of CD14+ monocytes, as well as of CD4+ and CD8+ T lymphocytes. 
|In vivo||Cladribine (0.7-3.5 mM) and/or diltiazem (2.4 mM), is injected intraperitoneally into adult zebrafish and red blood cell (RBC) lysates are assayed by HPLC for levels of purine nucleotides (e.g. ATP), potential biomarkers of cardiovascular health. Diltiazem increased RBC ATP concentrations, which are inhibited by co-injection of cladribine.  Plasma concentrations of Cladribine decreases rapidly following a biphasic decline after both ia and s.c. administrations. The AUC and t 1/2 beta after a single 1 mg/kg ia and 2 mg/kg s.c. injection of Cladribine are 0.66 vs 1.2 μg × h/mL and 3.5 vs 4.5 hours, respectively. |
-  Ma J, et al. BMC Cancer. 2011, 11, 255.
-  Guchelaar HJ, et al. Cancer Chemother Pharmacol. 1998, 42(1), 77-83.
-  B?hm A, et al. Exp Hematol. 2010, 38(9), 744-755.
|In vitro||DMSO||57 mg/mL (199.51 mM)|
|In vivo||Add solvents to the product individually and in order(Data is from Selleck tests instead of citations):
5% DMSO+30% PEG 300+1% Tween 80+H2O
For best results, use promptly after mixing.
* Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations.
|Synonyms||Leustatin, 2-CdA, 2-chlorodeoxyadenosine, 2-Chloro-2′-deoxyadenosine, CldAdo, Jk 6251, NSC 105014|
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||ul||Number of animals|
|Step 2: Enter the in vivo formulation ()|
|% DMSO % % Tween 80 % ddH2O|
Working concentration： mg/ml；
Method for preparing DMSO master liquid: ： mg drug pre-dissolved in μL DMSO (Master liquid concentration mg/mL，)
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.
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.
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* When preparing stock solutions always use the batch-specific molecular weight of the product found on the vial label and SDS / COA (available online).
Molecular Weight Calculator
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Clinical Trial Information
|NCT Number||Recruitment||interventions||Conditions||Sponsor/Collaborators||Start Date||Phases|
|NCT04997148||Recruiting||--||Relapsing-Remitting Multiple Sclerosis||Merck Healthcare KGaA Darmstadt Germany an affiliate of Merck KGaA Darmstadt Germany|Merck Serono Limited an affiliate of Merck KGaA Darmstadt Germany||August 11 2021||--|
|NCT04821596||Recruiting||Other: biological collection||Multiple Sclerosis||University Hospital Rouen||July 13 2020||Not Applicable|
|NCT04121065||Not yet recruiting||Procedure: Blood withdrawal||Relapsing Multiple Sclerosis||Neuromed IRCCS||January 2020||--|
|NCT04934800||Recruiting||Drug: Cladribine||Multiple Sclerosis||Merck Healthcare KGaA Darmstadt Germany an affiliate of Merck KGaA Darmstadt Germany|Merck Hellas sa. Greece||December 10 2019||--|
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.
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