In vitro study | Tubastatin A is selective for all 11 HDAC subtypes, and the IC50 for HDAC6 is 15 nM, which is more than 1000 times that of all subtypes except HDAC8, which is about 57 times more selective for hdac8. The IC50 of Tubastatin A for HDAC8 was 854 nM. Tubastatin A has A protective effect on homocysteine (HCA)-induced neuronal cell death, which is dose-dependent from 5 μm, at 10 μm, the cells were substantially completely protected from damage. 100 ng/mL Tubastatin A enhances the inhibition of T cell proliferation by Foxp3 T-regulatory cells (Tregs) in vitro. Treatment of C2C12 cells with Tubastatin A resulted in abnormal myotube formation when α-tubulin was hyperacetylated early in the myogenesis process; However, myotube elongation occurred precisely when α-tubulin was hyperacetylated. Recent studies have found that in mouse ovarian cancer cell lines MOSE-E and MOSE-L, Tubastatin A treatment increases cell elasticity, this is the result of atomic force microscopy without drastic alteration of the actin microfilament and microtubule network. |