LMK 235 |
| رقم الكتالوجGC13237 |
A selective inhibitor of HDAC4 and HDAC5
Products are for research use only. Not for human use. We do not sell to patients.
Cas No.: 1418033-25-6
Sample solution is provided at 25 µL, 10mM.
Description:
IC50: cytotoxicity IC50 (490 nm for A2780; 320 nm for A2780 CisR); HDAC inhibition (650 nM for A2780; 320 nm for A2780 CisR)
Histone deacetylases (EC 3.5.1.98, HDAC) are a class of enzymes that remove acetyl groups (O=C-CH3) from an ε-N-acetyl lysine amino acid on a histone, allowing the histones to wrap the DNA more tightly. Histone deacetylase inhibitors (HDIs) have a long history of use in psychiatry and neurology as mood stabilizers and anti-epileptics, for example, valproic acid. In more recent times, HDIs are being studied as a mitigator or treatment for neurodegenerative diseases.
In vitro: LMK235 showed similar effects compared to vorinostat on inhibition of cellular HDACs in a pan-HDAC assay but enhanced cytotoxic effects against the human cancer cell lines A2780, Cal27, Kyse510, and MDA-MB231. LMK235 shows nanomolar inhibition of HDAC4 and HDAC5, whereas vorinostat and TSA inhibit HDAC4 and HDAC5 in the higher micromolar range. In contrast to vorinostat, LMK235 showed a novel HDAC isoform selectivity profile with preference for HDAC4 and HDAC5, which are inhibited with low nanomolar IC50 values [1].
In vivo: In a mouse in-vivo study, synergistic inhibition was demonstrated for LMK235 and Cytarabine in proliferation assays and in colony formation assays. These findings demonstrate that in vivo RNAi screening for therapeutic efficacy is feasible. HDAC4 might be an important target to enhance efficacy of anti-leukemic drugs [2].
Clinical trial: LMK235 is currently in the preclinical development and no clinical trial is ongoing.
References:
[1] Marek L, Hamacher A, Hansen FK, Kuna K, Gohlke H, Kassack MU, Kurz T. Histone deacetylase (HDAC) inhibitors with a novel connecting unit linker region reveal a selectivity profile for HDAC4 and HDAC5 with improved activity against chemoresistant cancer cells. J Med Chem. 2013;56(2):427-36.
[2] Stephanie Lettermann, Konstantin Agelopoulos, Christian Rohde, Beate Lindtner, Linda Marek, Georg Hempel, Matthias Stelljes, Wolfgang E. Berdel, Thomas Kurz and Carsten Müller-Tidow. In Vivo RNAi Screening Identifies HDAC4 As a Mediator Of Chemoresistance In Acute Myeloid Leukemia. 55th ASH Annual Meeting and Exposition (2013) (https://ash.confex.com/ash/2013/webprogram/Paper60036.html)
Cell experiment: | The rate of cell survival under the action of test substances is evaluated by an improved MTT assay. The assay is based on the ability of viable cells to metabolize yellow 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) to violet formazan that can be detected spectrophotometrically. In brief, A2780, Cal27, Kyse510, and MDA-MB-231 cell lines are seeded at a density of 5000, 7000, 8000, and 10 000 cells/well in 96-well plates. After 24 h, cells are exposed to increased concentrations of the test compounds. Incubation is ended after 72 h, and cell survival is determined by addition of MTT solution (5 mg/mL in phosphate buffered saline). The formazan precipitate is dissolved in DMSO. Absorbance is measured at 544 and 690 nm in a FLUOstar microplate reader[1]. |
References: [1]. Marek L, et al. Histone deacetylase (HDAC) inhibitors with a novel connecting unit linker region reveal a selectivity profile for HDAC4 and HDAC5 with improved activity against chemoresistant cancer cells. J Med Chem. 2013 Jan 24;56(2):427-36. | |
| Cas No. | 1418033-25-6 | SDF | |
| Chemical Name | N-((6-(hydroxyamino)-6-oxohexyl)oxy)-3,5-dimethylbenzamide | ||
| Canonical SMILES | CC1=CC(C)=CC(C(NOCCCCCC(NO)=O)=O)=C1 | ||
| Formula | C15H22N2O4 | M.Wt | 294.35 |
| الذوبان | ≥ 9.95mg/mL in DMSO, ≥ 53.8 mg/mL in EtOH with ultrasonic | Storage | Store at -20°C |
| General tips | Please select the appropriate solvent to prepare the stock solution according to the
solubility of the product in different solvents; once the solution is prepared, please store it in
separate packages to avoid product failure caused by repeated freezing and thawing.Storage method
and period of the stock solution: When stored at -80°C, please use it within 6 months; when stored
at -20°C, please use it within 1 month. To increase solubility, heat the tube to 37°C and then oscillate in an ultrasonic bath for some time. |
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| Shipping Condition | Evaluation sample solution: shipped with blue ice. All other sizes available: with RT, or with Blue Ice upon request. | ||
| Prepare stock solution | |||
|
1 mg | 5 mg | 10 mg |
| 1 mM | 3.3973 mL | 16.9866 mL | 33.9732 mL |
| 5 mM | 679.5 μL | 3.3973 mL | 6.7946 mL |
| 10 mM | 339.7 μL | 1.6987 mL | 3.3973 mL |
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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.
3. All of the above co-solvents are available for purchase on the GlpBio website.
Quality Control & SDS
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- Purity: >99.50%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet
Average Rating: 5 (Based on Reviews and 30 reference(s) in Google Scholar.)
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