Light-mediated inhibition of protein synthesis.
The regulation of protein synthesis is vital for a host of cell biological processes, but investigating roles for protein synthesis have been hindered by the inability to selectively interfere with it. To inhibit protein synthesis with spatial and temporal control, we have developed a photo-releasable anisomycin compound, N-([6-bromo-7-hydroxycoumarin-4-yl]methyloxycarbonyl)anisomycin (Bhc-Aniso), that can be removed through exposure to UV light. The area of protein synthesis inhibition can be restricted to a small light-exposed region or, potentially, the volume of two-photon excitation if a pulsed IR laser is the light source. We have tested the compound's effectiveness with an in vitro protein-translation system, CHO cells, HEK293 cells, and neurons. The photo-released anisomycin can inhibit protein synthesis in a spatially restricted manner, which will enable the specific inhibition of protein synthesis in subsets of cells with temporal and spatial precision.
Howard Hughes Medical Institute and Division of Biology, California Institute of Technology 114-96, Pasadena, CA 91125, USA.
Michael
M
Goard
Girish
G
Aakalu
Olesya D
OD
Fedoryak
Carlo
C
Quinonez
Jamii
J
St Julien
Stephen J
SJ
Poteet
Erin M
EM
Schuman
Timothy M
TM
Dore
D000818:Animals; D000841:Anisomycin / Q000138:chemical synthesis / Q000737:chemistry / Q000494:pharmacology* / Q000528:radiation effects*; D002460:Cell Line; D006224:Cricetinae; D017930:Genes, Reporter / Q000235:genetics; D006801:Humans; D008027:Light; D009474:Neurons / Q000187:drug effects / Q000378:metabolism; D010782:Photolysis / Q000528:radiation effects; D014176:Protein Biosynthesis / Q000187:drug effects* / Q000528:radiation effects*; D051381:Rats; D013057:Spectrum Analysis; D014466:Ultraviolet Rays
D000841:Anisomycin