LDC4297 (LDC044297)

Catalog No.S7992

LDC4297 (LDC044297) Chemical Structure

Molecular Weight(MW): 432.52

LDC4297 is a novel CDK7 inhibitor (IC50=0.13±0.06 nM for CDK7 versus IC50s between 10 nM and 10,000 nM for all other analyzed CDKs).

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Biological Activity

Description LDC4297 is a novel CDK7 inhibitor (IC50=0.13±0.06 nM for CDK7 versus IC50s between 10 nM and 10,000 nM for all other analyzed CDKs).
Targets
CDK7 [1]
(Cell-free assay)
0.13 nM
In vitro

LDC4297 inhibits CDK7 in vitro in the nano-picomolar range. The affinity of LDC4297 for CDK7 proves to be extremely high. The replication of HCMV in cultured primary human fibroblasts (HFFs) is inhibited by LDC4297 in a concentration-dependent manner with a 50% effective concentration (EC50) value of 24.5 ± 1.3 nM. Notably, CDK7 inhibition by LDC4297 is not associated with general cytotoxicity at submicromolar concentrations. In contrast, LDC4297 induces cytotoxicity in a set of tumor cell lines, i.e., already at extremely low, nanomolar concentrations in specific cases. Anti-HCMV activity of LDC4297 is exerted through a multifaceted mode of action that involves an interference with virus-induced Rb phosphorylation[1].

In vivo The PK analyses of LDC4297 performed thus far have also been highly promising. An analysis of the PK parameters in CD1 mice reveals positive characteristics after oral administration, as demonstrated for a single-dose treatment (100 mg/kg of LDC4297. The half-life (t1/2z) is determined to be 1.6 h, and a time (Tmax) to a mean peak plasma concentration of 1,297.6 ng/ml is reached 0.5 h after administration, with a continued presence of LDC4297 plasma levels for at least 8 h and a bioavailability of 97.7%[1].

Protocol

Cell Research:[1]
+ Expand
  • Cell lines: human fibroblasts
  • Concentrations: 0.1 to 50 μM
  • Incubation Time: 3 days
  • Method: A trypan blue exclusion assay is performed with cultured cells seeded in 24-well plates and incubated with increasing concentrations of antiviral compounds (range, 0.1 to 50 μM) for the durations indicated. Cell staining is achieved with 0.1% trypan blue for 10 min at room temperature before the percentage of viable cells is determined by microscopic counting.
    (Only for Reference)
Animal Research:[1]
+ Expand
  • Animal Models: CD-1 mice
  • Formulation: --
  • Dosages: 100 mg/kg
  • Administration: oral administration
    (Only for Reference)

Solubility (25°C)

In vitro DMSO 86 mg/mL (198.83 mM)
Ethanol 86 mg/mL (198.83 mM)
Water 27 mg/mL (62.42 mM)

* 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.

Chemical Information

Molecular Weight 432.52
Formula

C23H28N8O

CAS No. 1453834-21-3
Storage powder
Synonyms N/A

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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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CDK Signaling Pathway Map

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Cell Lines Assay Type Concentration Incubation Time Formulation Activity Description PMID