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Merck

Targeting PTEN using small molecule inhibitors.

Methods (San Diego, Calif.) (2015-03-10)
Lok Hang Mak, Rudiger Woscholski
ABSTRACT

PTEN (phosphatase and tensin homologue deleted on chromosome 10) is well known as a tumour suppressor. It's PI(3,4,5)P3 lipid phosphatase activity is an important counteracting mechanism in PI 3-kinase (phosphoinositide 3-kinase) signalling. Furthermore, PTEN lies upstream of Akt kinase, a key enzyme in insulin signalling regulating glucose uptake and cell growth. Therefore, PTEN has recently gained attention as a valuable drug target for the treatment of diabetes, stroke, cardiac infarct and fertility. This review summarizes the use of small molecules as PTEN inhibitors. Currently available methodologies and techniques for accessing PTEN inhibition in vitro and in cellulo will be discussed.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Hydrogen chloride solution, 3 M in cyclopentyl methyl ether (CPME)
Sigma-Aldrich
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Chloroform, contains ethanol as stabilizer, ACS reagent, ≥99.8%
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Hydrogen chloride solution, 1.0 M in acetic acid
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Hydrogen chloride solution, 2.0 M in diethyl ether
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Hydrochloric acid, 37 wt. % in H2O, 99.999% trace metals basis
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Chloroform, contains ethanol as stabilizer, meets analytical specification of BP, 99-99.4% (GC)
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Chloroform, puriss. p.a., reag. ISO, reag. Ph. Eur., 99.0-99.4% (GC)
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Chloroform, contains amylenes as stabilizer, ACS reagent, ≥99.8%
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DL-Dithiothreitol, suitable for electrophoresis, ≥99%
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DL-Dithiothreitol, BioXtra, ≥99.0% (titration)
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DL-Dithiothreitol, ≥98% (HPLC), ≥99.0% (titration)
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DL-Dithiothreitol, for molecular biology, ≥98% (HPLC), ≥99% (titration)
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Chloroform, ≥99%, PCR Reagent, contains amylenes as stabilizer
Supelco
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Hydrogen chloride – methanol solution, ~1.25 m HCl (T), for GC derivatization, LiChropur
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Supelco
Chloroform, analytical standard
Sigma-Aldrich
DL-Dithiothreitol, ≥99.0% (RT)
Supelco
Hydrogen chloride – ethanol solution, ~1.25 M HCl, for GC derivatization, LiChropur
Sigma-Aldrich
Chloroform, biotech. grade, ≥99.8%, contains 0.5-1.0% ethanol as stabilizer