PBIT #81379
Product Information
Product Usage Information
PBIT is supplied as a lyophilized powder. For a 10 mM stock, reconstitute 1 mg of powder in 0.41 mL of DMSO. Working concentrations and length of treatment can vary depending on the desired effect.
Storage
Store lyophilized at -20ºC, desiccated. In lyophilized form, the chemical is stable for 24 months. Once in solution, store at -20ºC and use within 1 month to prevent loss of potency. Aliquot to avoid multiple freeze/thaw cycles.
Product Description
| Molecular Weight | 241.3 g/mol |
| Purity | >98% |
| Molecular Formula | C14H11NOS |
| CAS | 2514-30-9 |
| Solubility | Soluble in DMSO at 24 mg/mL or ethanol at 5 mg/mL. |
Background
PBIT is a small-molecule inhibitor of lysine demethylase 5B (JARID1B or KDM5B), which demethylates Lys4 of histone H3. PBIT is also involved in cell fate decisions and is overexpressed in a variety of human cancers (1). PBIT inhibits JARID1B (IC50 of approximately 3 μM) and the related JARID1A and JARID1C demethylases less potently (IC50 of 6 and 4.9 μM, respectively). PBIT treatment of breast cancer cells increased lysine methylated histone H3 protein levels, suggesting that PBIT inhibits JARID1B demethylase in vivo (2). In a study of angiotensin II-induced endothelial dysfunction in mice, inhibition of JARID1B by PBIT reduced the inflammatory response and prevented the development of endothelial dysfunction (3). Overexpression of JARID1B in non-small cell lung cancer correlated with tumor size, lymph node metastasis, advanced stages, and poor overall survival; inhibition of JARID1B by PBIT enhanced cancer cell death and increased treatment effectiveness (4).
限制使用
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For Research Use Only. Not For Use In Diagnostic Procedures.
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