lung tissue storage - (May/28/2012 )
How long should lung tissue be stored at -80 degrees to ensure the RNA in the lung is still viable. would two years be too long?
2 years should be fine, so long as the tissue was snap frozen in LN2 before being put into the -80. For some tissues, such as pancreas, -80 isn't enough, there are just too many RNases present.