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Definitely! While fresh is better, frozen should work as well.
The problem with frozen tissues is that ice crystals 'puncture' the cell membranes, which kind of causes cellular fluids to leak, so for detailed structural analysis of the lung frozen tissues might not be adequate, but it should be great for a first 'overview' type of study. At any rate, I cna always extract DNA for other purposes.
At what temperature is the tissue now, and how long has it been frozen?
Thanks for your reply!
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