Clofarabine

Catalog No.S1218 Batch:S121804

Print

Technical Data

Formula

C10H11ClFN5O3

Molecular Weight 303.68 CAS No. 123318-82-1
Solubility (25°C)* In vitro DMSO 60 mg/mL (197.57 mM)
Water Insoluble
Ethanol Insoluble
* <1 mg/ml means slightly soluble or insoluble.
* 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.
* Room temperature shipping (Stability testing shows this product can be shipped without any cooling measures.)

Preparing Stock Solutions

Biological Activity

Description Clofarabine (Clolar) inhibits the enzymatic activities of ribonucleotide reductase (RNR) (IC50 = 65 nM) and DNA polymerase. Clofarabine induces autophagy and apoptosis.
Targets
Ribonucleotide reductase [1]
(Cell-free assay)
65 nM
In vitro Clofarabine is efficiently transported into cells via two facilitative or equilibrative nucleoside transporters, hENT1 and hENT2, and a concentrative nucleoside transporter, hCNT253. Clofarabine is phosphorylated in a stepwise manner by cytosolic kinases to the nucleotide analogues clofarabine 5′-mono-, di- and triphosphate following entry into cells, with Clofarabine triphosphate being the active form. Clofarabine 5′-mono-, di- and triphosphate are not substrates for nucleoside transporters and must be enzymatically converted by 5′-nucleotidase back to their dephosphorylated nucleoside form for transport out of the cell. Clofarabine triphosphate is a potent inhibitor of ribonucleotide reductase (IC50 = 65 nM), presumably by binding to the allosteric site on the regulatory subunit. Clofarabine has also been shown to act directly on mitochondria by altering the transmembrane potential with release of cytochrome c, apoptotic-inducing factor (AIF), apoptosis protease-activating factor 1 (APAF1) and caspase 9 into the cytosol. Clofarabine demonstrates strong in vitro growth inhibition and cytotoxic activity (IC50 values = 0.028–0.29 μM) in a wide variety of leukaemia and solid tumour cell lines. Clofarabine has been shown to increase the activity of dCK in HL60 cells, and increases the formation of the mono-, di-, and triphosphates of ara-C in K562 cells36. [1] Clofarabine (10 μM) inhibits the repair initiated by 4-hydroperoxycyclophosphamide (4-HC), with inhibition peaking at the intracellular concentrations of 5 μM in chronic lymphocytic leukemia (CLL) lymphocytes. Clofarabine (10 μM) combined with 4-hydroperoxycyclophosphamide (4-HC) produces more than additive apoptotic cell death than the sum of each alone. [2] Clofarabine (1 μM) combined with ara-C (10 μM) results in a biochemical modulation of ara-CTP and synergistic cell kill in K562 cells. [3]
In vivo Clofarabine administered intraperitoneally has significant activity against a wide variety of human tumour xenografts implanted subcutaneously in athymic nude or severe combined immune deficiency mice. [1]

Protocol (from reference)

Customer Product Validation

, , Clin Cancer Res, 2017, 23(17):5225-5237

, , Cancer Chemoth Pharm, 2015, 75:897-906.

Selleck's Clofarabine has been cited by 20 publications

Synergistic cytotoxicity of fludarabine, clofarabine, busulfan, vorinostat and olaparib in AML cells [ Front Oncol, 2023, 13:1287444] PubMed: 38074694
Targeting Ribonucleotide Reductase Induces Synthetic Lethality in PP2A-Deficient Uterine Serous Carcinoma [ Cancer Res, 2022, 82(4):721-733] PubMed: 34921012
Tumour cells are sensitised to ferroptosis via RB1CC1-mediated transcriptional reprogramming [ Clin Transl Med, 2022, 12(2):e747] PubMed: 35220675
Establishment and Characterization of NCC-PMP1-C1: A Novel Patient-Derived Cell Line of Metastatic Pseudomyxoma Peritonei [ J Pers Med, 2022, 12(2)258] PubMed: 35207746
Establishment and characterization of NCC-UPS4-C1: a novel cell line of undifferentiated pleomorphic sarcoma from a patient with Li-Fraumeni syndrome [ Hum Cell, 2022, 10.1007/s13577-022-00671-y] PubMed: 35118583
Prediction and identification of synergistic compound combinations against pancreatic cancer cells [ iScience, 2021, 24(9):103080] PubMed: 34585118
Establishment and characterization of novel patient-derived cell lines from giant cell tumor of bone [ Hum Cell, 2021, 10.1007/s13577-021-00579-z] PubMed: 34304386
Establishment and characterization of the NCC-GCTB4-C1 cell line: a novel patient-derived cell line from giant cell tumor of bone [ Hum Cell, 2021, 10.1007/s13577-021-00639-4] PubMed: 34731453
Establishment and characterization of NCC-MFS4-C1: a novel patient-derived cell line of myxofibrosarcoma [ Hum Cell, 2021, 34(6):1911-1918] PubMed: 34383271
Establishment and characterization of patient-derived cancer models of malignant peripheral nerve sheath tumors. [ Cancer Cell Int, 2020, 19;20:58] PubMed: 32099531

RETURN POLICY
Selleck Chemical’s Unconditional Return Policy ensures a smooth online shopping experience for our customers. If you are in any way unsatisfied with your purchase, you may return any item(s) within 7 days of receiving it. In the event of product quality issues, either protocol related or product related problems, you may return any item(s) within 365 days from the original purchase date. Please follow the instructions below when returning products.

SHIPPING AND STORAGE
Selleck products are transported at room temperature. If you receive the product at room temperature, please rest assured, the Selleck Quality Inspection Department has conducted experiments to verify that the normal temperature placement of one month will not affect the biological activity of powder products. After collecting, please store the product according to the requirements described in the datasheet. Most Selleck products are stable under the recommended conditions.

NOT FOR HUMAN, VETERINARY DIAGNOSTIC OR THERAPEUTIC USE.