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CI994 (Tacedinaline)

Catalog No.
A4102
HDAC inhibitor
Grouped product items
SizePriceStock Qty
10mM (in 1mL DMSO)
$55.00
In stock
Evaluation Sample
$30.00
In stock
10mg
$50.00
In stock
50mg
$120.00
In stock
For scientific research use only and should not be used for diagnostic or medical purposes.

Tel: +1-832-696-8203

Email: [email protected]

Worldwide Distributors

Background

CI994 is a selective inhibitor of HDAC1 with IC50 value of 0.57 μM [1].
HDAC1 is an enzyme that encoded by HDAC1 and plays a pivotal role in regulating eukaryotic gene expression. It is also been reported that HDAC1 interacts with retinoblastoma tumor-suppressor protein which is a key element in the control of cell proliferation and differentiation. Many studies have shown that HDAC1 inhibition works as a promising therapy used for cancer treatment in clinic [2] [3].
CI994 is a selective HDAC1 and HDAC3 and is different from the reported unselective inhibitor SAHA. When tested with HeLa cervical carcinoma cells, CI994 treatment showed a selectivity inhibitory ability for HDAC1 and 3 with the IC50 was 43.5±1.2 μM [4]. In peripheral blood lymphocytes isolated from untreated male Wistar rats, administration of CI994 for 24 hours induced cells apoptosis in a dose-dependent manner (1 μM~10μM ) [1]. When tested with mitogen-stimulated blood lymphocytes, CI-994 treatment inhibited cells proliferation with IC50 value of 3 mM [5]. In NSCLC cell lines (A549 and LX-1), CI994 administration induced cell apoptosis via inhibiting HDAC activity and arresting cell cycle at G0/G1 phase and showed a promising therapy strategy when combined with chemotherapy [2].
In male rats model, oral administration of CI994 markedly effected lymphoid tissue via reducing blood lymphocytes, monocytes, neutrophils and bone marrow lymphoid cells at the concentration of 10, 23, and 45 mg/kg on day 1 and/or 3 [5].
References:
[1].?? ?Graziano, M.J., et al., Induction of Apoptosis in Rat Peripheral Blood Lymphocytes by the Anticancer Drug CI-994 (Acetyldinaline)(*). J Biomed Biotechnol, 2001. 1(2): p. 52-61.
[2].?? ?Loprevite, M., et al., In vitro study of CI-994, a histone deacetylase inhibitor, in non-small cell lung cancer cell lines. Oncol Res, 2005. 15(1): p. 39-48.
[3].?? ?Cacan, E., et al., Inhibition of HDAC1 and DNMT1 modulate RGS10 expression and decrease ovarian cancer chemoresistance. PLoS One, 2014. 9(1): p. e87455.
[4].?? ?Beckers, T., et al., Distinct pharmacological properties of second generation HDAC inhibitors with the benzamide or hydroxamate head group. Int J Cancer, 2007. 121(5): p. 1138-48.
[5].?? ?Graziano, M.J., A.J. Galati, and K.M. Walsh, Immunotoxicity of the anticancer drug CI-994 in rats: effects on lymphoid tissue. Arch Toxicol, 1999. 73(3): p. 168-74.

Product Citation

Chemical Properties

Physical AppearanceA solid
StorageStore at -20°C
M.Wt269.3
Cas No.112522-64-2
FormulaC15H15N3O2
Solubilityinsoluble in H2O; insoluble in EtOH; ≥50 mg/mL in DMSO
Chemical Name4-acetamido-N-(2-aminophenyl)benzamide
SDFDownload SDF
Canonical SMILESCC(=O)NC1=CC=C(C=C1)C(=O)NC2=CC=CC=C2N
Shipping ConditionSmall Molecules with Blue Ice, Modified Nucleotides with Dry Ice.
General tips We do not recommend long-term storage for the solution, please use it up soon.

Protocol

Cell experiment: [1]

Cell lines

Peripheral blood lymphocytes

Preparation method

The solubility of this compound in DMSO is ≥50mg/mL. General tips for obtaining a higher concentration: Please warm the tube at 37 °C for 10 minutes and/or shake it in the ultrasonic bath for a while.Stock solution can be stored below -20°C for several months.

Reaction Conditions

10 μM, 24 hours

Applications

No evidence of apoptosis or necrosis was detected in lymphocytes exposed to CI994 for 4 hours. After 24 hours, concentration-dependent increases in apoptosis characterized by DNA condensation, DNA fragmentation, and/or externalization of phosphatidyl serine were seen at CI-994 concentrations as low as 1 μM and were statistically significant beginning at 10 μM.
Animal experiment: [2]

Animal models

Male Wistar rats

Dosage form

Oral administration, 45 mg/kg

Applications

15 rats per group were administered a single dose of CI994 at 0 (vehicle control), 10, 23, and 45 mg/kg. 5 rats per group were killed 1, 3, and 7 days after dosing for evaluation of blood and bone marrow lymphocyte counts. CI994 treatments resulted in significant dose-related reductions in total white blood cell counts, total lymphocytes and lymphocyte subpopulations. Relative to controls, reductions on day 1 ranged from 36 to 48% at 10 mg/kg, 65 to 76% at 23 mg/kg, and 74 to 87%at 45 mg/kg. Dose-related reductions in monocytes ranging from 54 to 89% were observed in all drug-treated groups on days 1 and 3. Besides that, significant dose-related reductions in bone marrow lymphoid cells ranged from 28 to 33% at 10 mg/kg, 63 to 69%at 23 mg/kg, and 80 to 87%at 45 mg/kg.

Other notes

Please test the solubility of all compounds indoor, and the actual solubility may slightly differ with the theoretical value. This is caused by an experimental system error and it is normal.

References:

[1] Graziano M J, Spoon T A, Cockrell E A, et al. Induction of apoptosis in rat peripheral blood lymphocytes by the anticancer drug CI-994 (acetyldinaline). BioMed Research International, 2001, 1(2): 52-61.

[2] Graziano M J, Galati A J, Walsh K M. Immunotoxicity of the anticancer drug CI-994 in rats: effects on lymphoid tissue. Archives of toxicology, 1999, 73(3): 168-174.

Biological Activity

Description CI-994 (Tacedinaline),an anti-cancer drug, is an inhibitor of HDAC1 with IC50 of 0.57 μM and causes G1 cell cycle arrest.
Targets HDAC1          
IC50 0.57 μM          

Quality Control