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HLI 373

Catalog No.GC10650

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HLI 373 Chemical Structure

Cas No.: 502137-98-6

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Sample solution is provided at 25 µL, 10mM.

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Background

IC50: N/A

HLI 373 is an inhibitor of Hdm2 ubiquitin ligase (E3).

Hdm2 ubiquitin ligase(E3) is a major regulator of p53 by promoting its ubiquitylation and proteasomal degradation. Therefore, blocking Hdm2-mediated activities may be a therapeutic approach for cancers expressing wild-type p53 [1].

In vitro: HLI373 effectively induces apoptosis of several tumor cells that are sensitive to DNA-damaging agents. HLI373-treated cells showed significantly more DNA retained on the filter, indicating that it does not induce single-strand break in U2OS cells. Having no discernable effect on gp78 or AO7, HLI373 seems prefer to inhibit the ubiquitin ligase activity of Hdm2. Treatment of U2OS cells with HLI373 at 10 Amol/L also leaded to a marked decrease in ubiquitylated species immunoprecipitated with anti-Hdm2, whereas the level of immunoprecipitated Hdm2 increased. Inhibition of Hdm2-mediated ubiquitylation in cells can trigger stabilization of both p53 and Hdm2 and preferential killing of tumor cells expressing wild-type p53. HLI373 increased p53 through inhibiting Hdm2-mediated ubiquitylation and not by inducing a DNA damage response in U2OS cells. HLI373 has high potency in stabilizing Hdm2 and p53. HLI373 inhibits the ubiquitin ligase activity of Hdm2 and induces a wild-type p53-dependent apoptosis in several tumor cells that are sensitive to DNA-damaging agents [1,2].

In vivo: So far, no study in vivo has been conducted.

Clinical trial: So far, no clinical study has been conducted.

References:
[1].  Kitagaki J, Agama KK, Pommier Y, et al. Targeting Tumor Cells Expressing p53 with a Water-soluble Inhibitor of Hdm2. Molecular Cancer Therapeutics, 2008; 7(8): 2445-1454.
[2]. Yang Y, Kitagaki J, Wang H, Hou DX, Perantoni AO. Targeting the Ubiquitin-proteasome System for Cancer Therapy. Cancer Science, 2009, 100(1): 24-28.

Chemical Properties

Cas No. 502137-98-6 SDF
Chemical Name 5-((3-(dimethylamino)propyl)amino)-3,10-dimethylpyrimido[4,5-b]quinoline-2,4(3H,10H)-dione dihydrochloride
Canonical SMILES O=C(C1=C(NCCCN(C)C)C2=C(N(C)C1=N3)C=CC=C2)N(C)C3=O.Cl.Cl
Formula C18H23N5O2.2HCl M.Wt 414.33
Solubility <37.79mg/ml in Water Storage Desiccate at RT
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.
Shipping Condition Evaluation sample solution: shipped with blue ice. All other sizes available: with RT, or with Blue Ice upon request.

Complete Stock Solution Preparation Table

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1 mg 5 mg 10 mg
1 mM 2.4135 mL 12.0677 mL 24.1354 mL
5 mM 0.4827 mL 2.4135 mL 4.8271 mL
10 mM 0.2414 mL 1.2068 mL 2.4135 mL
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Average Rating: 5 ★★★★★ (Based on Reviews and 30 reference(s) in Google Scholar.)

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