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DB1976 hydrochloride

Catalog No.GC39628

DB1976 hydrochloride es un eficaz inhibidor del factor de transcripción PU.1. DB1976 dihidrocloruro inhibe potentemente la unión de PU.1 (IC50 de 10 nM) y bloquea de manera efectiva el complejo PU.1/ADN (con alta afinidad de DB1976-λB, KD de 12 nM) in vitro. DB1976 dihidrocloruro tiene un efecto inductor de apoptosis.

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DB1976 hydrochloride Chemical Structure

Cas No.: 2369663-93-2

Tamaño Precio Disponibilidad Cantidad
10mM (in 1mL DMSO)
280,00 $
Disponible
1mg
111,00 $
Disponible
5mg
245,00 $
Disponible
10mg
420,00 $
Disponible

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Sample solution is provided at 25 µL, 10mM.

Product has been cited by 2 publications

Description of DB1976 hydrochloride

DB1976 hydrochloride es un eficaz inhibidor del factor de transcripción PU.1. DB1976 dihidrocloruro inhibe potentemente la unión de PU.1 (IC50 de 10 nM) y bloquea de manera efectiva el complejo PU.1/ADN (con alta afinidad de DB1976-λB, KD de 12 nM) in vitro. DB1976 dihidrocloruro tiene un efecto inductor de apoptosis[1] [4].

DB1976 hidrocloruro (0,1-100 mM, 48h) provocó una disminución en el crecimiento de las células PU.1 URE–/– de LMA (IC50: 105 μM); tras el tratamiento con DB1976 (25 μM, 24h), se observó que la expresión lentiviral de PU.1 en las células MOLM13 rescataba los efectos citotóxicos del compuesto y aumentaba la viabilidad celular después del tratamiento con DB1976[1].

La exposición a DB1976 hidrocloruro (5 mg/kg/día, 28 días) redujo la fibrosis intersticial, subepicárdica y perivascular inducida por Ang-II en el tejido auricular[2]. DB1976 (5 mg/kg/día, 28 días) atenuó eficazmente el aumento inducido por Ang-II en el número de fibroblastos auriculares y redujo la expresión de PCNA, α-SMA, SMemb, fibronectina ED-A y DDR2 in vitro e in vivo[2]. En un modelo de asma, DB1976 (1 mg/kg y 2,5 mg/kg, 5 días por semana durante 3 semanas) aumentó los eosinófilos en las vías respiratorias y redujo la deposición de colágeno en las vías respiratorias pequeñas, pero no tuvo efecto sobre el número de células secretoras de moco[3].

References:
[1]. Antony-Debré I, et al. Pharmacological inhibition of the transcription factor PU.1 in leukemia. J Clin Invest. 2017 Dec 1;127(12):4297-4313.
[2]. Hu J, et al. PU.1 inhibition attenuates atrial fibrosis and atrial fibrillation vulnerability induced by angiotensin-II by reducing TGF-β1/Smads pathway activation. J Cell Mol Med. 2021 Jul;25(14):6746-6759. 
[3]. Tu, X., Gomez, H.M., Kim, R.Y. et al. Airway and parenchyma transcriptomics in a house dust mite model of experimental asthma. Respir Res 24, 32 (2023).
[4].Stephens DC, Kim HM, Kumar A, Farahat AA, Boykin DW, Poon GM. Pharmacologic efficacy of PU.1 inhibition by heterocyclic dications: a mechanistic analysis. Nucleic Acids Res. 2016 May 19;44(9):4005-13. 

Protocol of DB1976 hydrochloride

Experimentos celulares [1]:

Líneas celulares

Células URE–/– de LMA; células HEK293.

Método de preparación

Las células PU.1 URE+/– Msh2–/– fueron tratadas con DB1976 (0.1-100 mM) durante 48 horas. Las células HEK293 fueron tratadas con DB1976 (25 μM) durante 24 horas.

Condiciones de reacción

Células URE–/– de LMA: (0.1-100) mM, 48h; células HEK293 negativas para PU.1: 25 μM, 24h.

Áreas de aplicación

El valor de IC50 de DB1976 dihidrocloruro en células HEK293 negativas para PU.1 es de 2.4 μM. El tratamiento con DB1976 dihidrocloruro inhibió significativamente el crecimiento de las células URE–/– de LMA (IC50 de 105 μM), mientras que tuvo menos efecto en células hematopoyéticas normales (IC50 de 334 μM).
Experimentos con animales [2]:

Modelos animales

Modelo de inhibición de PU.1.

Método de preparación

Ratones C57BL/6 fueron administrados con Ang-II + DB1976 (5 mg/día/kg) por inyección intraperitoneal una vez al día durante 28 días.

Forma de dosificación

5 mg/día/kg; 28 días; ip.

Áreas de aplicación

La exposición a DB1976 disminuyó la fibrosis intersticial, subepicárdica y perivascular inducida por Ang-II en el tejido auricular.

Referencias:

[1]. Antony-Debré I, et al. Inhibición farmacológica del factor de transcripción PU.1 en leucemia. J Clin Invest. 2017 Dec 1;127(12):4297-4313.

[2]. Hu J, et al. La inhibición de PU.1 atenúa la fibrosis auricular y la vulnerabilidad a la fibrilación auricular inducida por angiotensina-II mediante la reducción de la activación de la vía TGF-β1/Smads. J Cell Mol Med. 2021 Jul;25(14):6746-6759.

Chemical Properties of DB1976 hydrochloride

Cas No. 2369663-93-2 SDF
Canonical SMILES N=C(C1=CC=C2N=C(C3=CC=C(C4=NC5=CC=C(C(N)=N)C=C5N4)[Se]3)NC2=C1)N.[H]Cl.[H]Cl
Formula C20H18Cl2N8Se M.Wt 520.28
Solubility DMSO : 62.5 mg/mL (120.13 mM; Need ultrason); H20 : 18.33 mg/mL (35.23 mM; Need 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.
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 of DB1976 hydrochloride

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1 mg 5 mg 10 mg
1 mM 1.922 mL 9.6102 mL 19.2204 mL
5 mM 0.3844 mL 1.922 mL 3.8441 mL
10 mM 0.1922 mL 0.961 mL 1.922 mL
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Average Rating: 5 ★★★★★ (Based on Reviews and 22 reference(s) in Google Scholar.)

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