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Cancer cells?

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Cancer cells?

Postby stanimirbg » Fri Jun 22, 2007 8:51 pm

I was wondering could all cells dysfunction and start dividing uncontrollably due to cancer or only specific cells?

If cancer affects all cells, just imagine what benefits harnessing it would have. We could activate a rapid regeneration of many organs and stop it when regeneration is complete.

What are your thoughts on the subject? Could viruses and bacteria actually do us good?
:D
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Postby david23 » Fri Jun 22, 2007 9:35 pm

just specific cells. Virus and bacteria do us good meaning what? Rapid regeneration research are done by studying stem cells.
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Postby mith » Sat Jun 23, 2007 1:58 am

If all the cellular safeguards of all cells suddenly disappeared, then you'd have cancer...the hard part is flipping the switch back the other way.
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Postby Darby » Tue Jun 26, 2007 8:40 pm

Cancer is rare in cell types that themselves rarely divide, such as muscle cells. There are fewer active signals to alter in such cells.
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Postby Revenged » Tue Jun 26, 2007 11:30 pm

Darby wrote:Cancer is rare in cell types that themselves rarely divide, such as muscle cells. There are fewer active signals to alter in such cells.


yes... the general rule is higher the rate of cell turnover, the higher the incidence of cancer... another example is that epithelial cancers (carciomas) that are most common because it's epithelial cells that have a higher rate of cell turnover... this means that the cells are more likely to have accumulation of genetic mutations (i.e. loss of function of tumour suppressor genes and gain of function of oncogenes), which cause loss of control of the cell cycle... this loss of control can causes uncontrolled cellular growth - cancer...
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Re: Cancer cells?

Postby Revenged » Tue Jun 26, 2007 11:40 pm

stanimirbg wrote:What are your thoughts on the subject? Could viruses and bacteria actually do us good? :D


i watched a program just now about an identical twin with acute lymphoblastic leukaemia... in this condition, identical twins have a higher incidence than the general popultation (not the case for most childhood cancers)... this suggests that the pre-cancer starts during foetal development... anyway, the reason i mention it here is that the scientist interviewed stated that the trigger for leukaemia was that lack of exposure to infectious diseases during early age and so the child's immune system did not develop properly... evidence for this was the drastic increase in leukaemia in easten germany after the berlin wall was knocked down in 1989...
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