Advice wanted about DAPI/apoptosis/nuclear morphology

From: chen (pchen@connection.com)
Date: Mon Jun 21 1999 - 00:42:09 EST


Dear Flowers

In order to induce apoptosis of MDA-MB-468, a breast cancer line, I incubated the cells with 1% FBS/Leibovitz L-15 for 24, 48 and even 72 hours. Then I mounted the cells with a DAPI mounting solution and tried to see some changes in nuclear morphology under fluorescence microscope. To my surprise, I could not see any changes in nuclei between control and tests. 

My questions,
i) is DAPI a good marker for detecting nuclear morphology during apoptosis?
ii) do I need RNase in DAPI mounting solution? 
iii) is the 1% FBS/medium a good inducer of apoptosis?

Please give me some advice.

Paul 
Nuclear Medicine
Toronto Hospital
Toronto, Canada
pchen@connection.com



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