BI 6015 93987-29-2 GlpBio

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Product Data Sheet

Product Name: Cat. No.: Chemical Name:

BI 6015 GC13231

2-methyl-1-((2-methyl-5-nitrophenyl)sulfonyl)-1H-benzo[d]imidazole

CHEMICAL PROPERTIES Cas No.: 93987-29-2 Molecular Formula: Molecular Weight: Storage: Solubility:

Chemical Structure:

C15H13N3O4S 331.35 Powder

Soluble in DMSO

Background

BI 6015 is an antagonist of hepatocyte nuclear factor 4α [1].

Hepatocyte nuclear factor 4α (HNF4α) is a nuclear receptor and regulates gene expression in enterocytes, hepatocytes and pancreatic β cells [1].

BI 6015 is a HNF4α antagonist. BI6015 inhibited the insulin promoter. In T6PNE cells, BI6015 reduced the expression of endogenous insulin by 50-fold. In MIN6 and HepG2 cells, BI6015 inhibited the expression of HNF4α. Also, BI6015 changed HNF4α protease sensitivity [1]. In T6PNE cells, BI 6015 reduced the levels of longer chain acylcarnitines (C18, C18:1, C16, and C14) and increased acetylcarnitine, which suggested that BI 6015 increased fatty acid oxidation. In the human hepatoma cell line Hep3B, BI 6015 exhibited cytotoxic activity [1].

In mice, BI6015 (30 mg/kg) induced a loss of HNF4α protein in the liver, but not in the kidney and intestine. Also, BI6015 caused fat accumulation and steatosis and vesicular changes in a dose-dependent way [1]. References:

[1]Sch ffski P. Polo-like kinase (PLK) inhibitors in preclinical and early clinical development in oncology. Oncologist. 2009 Jun;14(6):559-70.

[2]Pezuk JA1, Brassesco MS, Oliveira JC, Morales AG, Montaldi AP, Sakamoto-Hojo ET, Scrideli CA, Tone LG. Antiproliferative in

vitro effects of BI 2536-mediated PLK1 inhibition on cervical adenocarcinoma cells. Clin Exp Med. 2013 Feb;13(1):75-80.

Research Update

1. Effect of Hydrofluoric Acid Concentration and Etching Time on Bond Strength to Lithium Disilicate Glass Ceramic. Oper Dent. 2017 Nov/Dec;42(6):606-615. doi: 10.2341/16-215-L. Epub 2017 Jul 14. PMID:28708007 Abstract

The aim of this study was to evaluate the influence of different concentrations of hydrofluoric acid (HF) associated with varied etching times on the microshear bond strength (μSBS) of a resin cement to a lithium disilicate glass ceramic. Two hundred seventy-five ceramic blocks (IPS e.max Press [EMX], Ivoclar Vivadent), measuring 8 mm × 3 mm thickness, were randomly distributed into five groups according to the HF concentrations (n=50): 1%, 2.5%, 5%, 7.5%, and 10%.

2. Does acid etching morphologically and chemically affect lithium disilicate glass ceramic surfaces? J Appl Biomater Funct Mater. 2017 Jan 26;15(1):e93-e100. doi: 10.5301/jabfm.5000303. PMID:27647389 Abstract

BACKGROUND: This study evaluated the surface morphology, chemical composition and adhesiveness of lithium disilicate glass ceramic after acid etching with hydrofluoric acid or phosphoric acid.METHODS: Lithium disilicate glass ceramic specimens polished by 600-grit silicon carbide paper were subjected to one or a combination of these surface treatments: airborne particle abrasion with 50-μm alumina (AA), etching with 5% hydrofluoric acid (HF) or 36% phosphoric acid (Phos), and application of silane coupling agent (Si). 3. Fatigue failure load of feldspathic ceramic crowns after hydrofluoric acid etching at different concentrations. J Prosthet Dent. 2018 Feb;119(2):278-285. doi: 10.1016/j.prosdent.2017.03.021. Epub 2017 May 26. PMID:28552291 Abstract

STATEMENT OF PROBLEM: Hydrofluoric acid etching modifies the cementation surface of ceramic restorations, which is the same surface where failure is initiated. Information regarding the influence of hydrofluoric acid etching on the cyclic loads to failure of ceramic crowns is lacking.PURPOSE: The purpose of this in vitro study was to evaluate the influence of different hydrofluoric acid concentrations on the fatigue failure loads of feldspathic ceramic crowns.