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Rouxs Arch Dev Biol
1993 Feb 01;2023:144-151. doi: 10.1007/BF00365304.
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Accumulation of multiacetylated forms of histones by trichostatin A and its developmental consequences in early starfish embryos.
Ikegami S
,
Ooe Y
,
Shimizu T
,
Kasahara T
,
Tsuruta T
,
Kijima M
,
Yoshida M
,
Beppu T
.
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External application of 10 rig/ml (R)-trichostatin A (TSA), a potent and specific inhibitor of mammalian histone deacetylase, to the embryo of the starfish Asterina pectinifera inhibited development during the early gastrula stage before formation of mesenchyme cells. The TSA-sensitive period was limited to the mid-blastula stage before hatching. The pulse-chase experiment clearly demonstrated that TSA induced an accumulation of acetylated histone species in blastulae through inhibition of historic deacetylation. Similar blockage of development at the early gastrula stage was observed with n-butyrate, which has been known as a weak inhibitor of historic deacetylase. These results suggest an intimate role for historic acetylation-deacetylation equilibria in starfish development.
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