Luminespib (VER-52296) is an HSP90 inhibitor that inhibits HSP90α and HSP90β (IC50=7.8/21 nM). Luminespib has antitumor activity and is used in studies of head and neck tumors, among others.

HSP90 α:7.8 nM (cell free), HSP90 β:21 nM (cell free)

METHODS: H. pylori infected GES-1 cells were treated with Patchouli alcohol (5-20 µg/mL) for 24 h. Apoptosis was detected by flow cytometry.
RESULTS: Patchouli alcohol treatment significantly reduced H. pylori-induced apoptosis. [1]
METHODS: H. pylori-infected GES-1 cells were treated with Patchouli alcohol (5-20 µg/mL) for 24 h. Cytokine levels were measured by ELISA.
RESULTS: Treatment with 5-20 µg/mL Patchouli alcohol significantly reduced the production of TNF-α and MCP-1. [1]

METHODS: To study the effect on H. pylori-associated gastritis, Patchouli alcohol (5-20 mg/kg) was administered orally to H. pylori infected mice once daily for two weeks.
RESULTS: Patchouli alcohol treatment increased SH-NP content and CAT activity and significantly protected the gastric mucosa from H. pylori-induced damage. [1]

Cell lines were grown in DMEM/10% FCS, 2 mmol/L glutamine, and nonessential amino acids in a humidified atmosphere of 5% CO2 in air. All lines were free of Mycoplasma. Cell proliferation was determined using the sulforhodamine B (SRB) assay for tumor cells and prostate epithelial cells, the WST-1 assay for MCF10A and HB119, or an alkaline phosphatase assay for HUVEC and HDMEC. GI50 was the compound concentration inhibiting cell proliferation by 50% compared with vehicle controls. Cell cycle analysis was as described. Active caspase-3/7 was measured using a homogenous caspase assay kit [1].

In vivo, pharmacokinetic studies in female NCr athymic mice bearing WM266.4 human melanoma xenografts were essentially as described. NVP-AUY922 was dissolved in DMSO and diluted in sterile saline/Tween 20. A single dose of 50 mg/kg NVP-AUY922 was given i.v. or i.p. and groups of three animals were taken at intervals for pharmacokinetic analyses [1].