Re: Senescence: Cells, ageing and cancer.

[Jerry Zhu <***>]

Senescence of cell and senescence of organism are
related?  As Judith said that cells die even before
baby was born.  So the aging of cells is not related
to the aging of the person. Or it is not that cells
are old and die.  Too me cancer cells divide faster
than cell death. It goes against that cells are old
and can not divide.

Thanks

Jerry


--- Rodrigo Peláez <***> wrote:

> The following appears in the last number of NATURE.
> It could be of interest
> to the list.
>  
>  
> This week in Nature four groups show, with striking
> in vivo evidence, that
> oncogene-induced cellular senescence represents a
> safety mechanism to
> suppress tumor progression. The identification of
> senescence as a defining
> feature of premalignant tumors could prove valuable
> in the diagnosis and
> prognosis of cancer. This web focus
>
<http://info.nature.com/cgi-bin24/DM/y/hUTa0HWIry0Dn0kIh0EQ>
>  brings
> together key publications on senescence and cancer
> including primary
> research papers, News & Views and a review article.
> 
> Is growing old a good thing? As cells mature they
> naturally stop dividing
> and enter a period called senescence. But cellular
> senescence can also be
> induced prematurely by certain oncogenes involved in
> cancer development.
> Four papers in Nature show that, as previously
> suggested by in vitro
> studies, oncogene-induced cellular senescence
> represents a safety mechanism
> to suppress tumour progression in vivo. Cellular
> senescence also plays a key
> role in ageing. In this web focus, Nature brings
> together articles on
> senescence and cancer with key publications in
> ageing research, including
> primary research papers, News & Views and a review
> article.
> 
> 
>
<http://www.nature.com/nature/focus/senescence/index.html>
>
http://www.nature.com/nature/focus/senescence/index.html
>  
> Rodrigo
>  
> PS: In my post about entropy-syntropy and the work
> of Luigi Fantappie, I
> make a mistake in the conjugate of the verb To
> Admire. I write ?I admired
> very much the work of Robert Rosen?. Of course what
> I want to mean was: I
> admire.
> 



                
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