"Programmed" .vs. cumulative damage causes of cell-cycle failure

Johann JOETS joets at hermes.univ-poitiers.fr
Tue Nov 14 15:19:51 EST 1995


In article <JITpwAfNBh107h at chambers.ak.planet.co.nz>, steve at chambers.ak.planet.co.nz (Steve Chambers) says:
>

>
>Besides which, an immortalised cell line quickly loses it's resemblance
>to the cell type from which it arose - in other words it's damaged, or
>"aged" might be a better word ;-)
>
Immortalised cell line are often in a less differenciated state than parental. 
So "younger"...
If they become immortal, they stop to age ! (it's a damage too -) )
Then it raises the idea that cells are able to "decide" to not age and to respond to time assaults.
So why aging ? for evolution ? ( are bacteria able to age ?)
	Johann

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Johann JOETS
Institut de Biologie Moleculaire et d'Ingenierie Genetique
Laboratoire de Genetique Physiologique et Moleculaire
Universite de Poitiers
40, Av du Recteur Pineau, 86 022 Poitiers
TEL : 49 45 38 64
FAX : 49 45 35 03
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