IUBio

apoptosis , I do not agree completly

Bob xyzbbruner at uclink4.berkeley.edu
Mon Dec 15 23:20:49 EST 2003


On 11 Dec 2003 22:17:25 -0000, zy2012 at columbia.edu wrote:

>Thank you very much. I agree that apoptosis is specific style of 
>death and there are many hallmarks in the apoptotic cell. My 
>question is that after concentration of drug which should not 
>induce apoptosis is enough to kill cell, there must be 
>phosphatidyserine exposure on the outer member leaflet and DNA 
>fragment because of the release of nucleases. It seemed to be 
>confirmed by my experiment. For example, puromycin can kill 
>leukemia cell line, and it should not induce apoptosis of the cell 
>line. However, the experiment showed that there was clear DNA 
>fragment and positive result with  phosphatidyserine exposure on 
>the outer member leaflet after puromycine treatment. Maybe, 
>puromycin can induce the apoptosis of the cell ?  And is it 
>necessary to identify the two kind of apoptosis ?
>

Have you done a literature search on 
puromycin AND apoptosis
? Search Medline using that pair of search terms, and you will get
some info.

bob






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