HU 308 256934-39-1 GlpBio

Peptides, Inhibitors, Agonists

Product Data Sheet

Product Name: HU 308

Cat. No.:GC13965

Chemical Name: ((1S,4S,5S)-4-(2,6-dimethoxy-4-(2-methyloctan-2-yl)phenyl)-6,6-dimethylbicyclo[3.1.1]hept-2-

en-2-yl)methanol

CHEMICAL PROPERTIES

Cas No.: 256934-39-1

Molecular Formula: C27H42O3

Molecular Weight: 414.62

Storage: Powder

Solubility: Soluble in DMSO

Chemical Structure:

Background

HU-308 is a selective agonist of CB2-receptor with a Ki value of 20 nM. The Ki value for CB1-receptor is >10 μM.

Cannabinoid 2 receptor (CB2-receptor) belongs to the seven transmembranes G protein-coupled receptor superfamily. It is mainly distributed in peripheral tissue associated with immune functions.

In HLSECs, HU-308 markedly reduced the expression of both ICAM-1 and VCAM-1, which was induced by TNFα. HU-308 attenuated TNF- treatment induced RhoA activation (4.0-fold vs. control) and NF-B Activation. HU-308 inhibited TNFα-induced monocyte adhesion in aortas ex vivo [1].

HU-308 increased both primary neurosphere generation and neural progenitor self-renewal. HU-308 increased the number of BrdU incorporating cells in a CB2-dependent manner. HU-308 stimulated ERK and Akt [2].

Pretreatment of mice with HU-308 decreases the I/R-induced tissue damage, inflammatory cell infiltration, tissue and serum TNF-α, MIP-1, and MIP-2 levels, tissue lipid peroxidation and apoptosis [3].

References:

[1]Tokuda, H. , and Unemoto, T. Na+ is translocated at NADH:quinone oxidoreductase segment in the respiratory chain of Vibrio

alginolyticus. The Journal of Biological Chemisty 259(12), 7785-7790 (1984).

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 hun dred seventy-five ceramic blocks (IPS e.max Press [EMX], Ivoclar Vivadent), measuring 8 mm × 3 mm thickness, were randomly distributed into fiv e 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.500030

3. 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 age nt (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.