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Goldfish Level Alert

cercaria, you must must must read more about helacyton gartleri. I am trying to work it into my theory of goldfish immortality the more I am learning!

This of course, assumes you don't already know about them. If you do, that is something you knew before I did, and the reason book learnin with a tuition is sometimes better than my tried and true shotgun method.

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(Anonymous)
Dec. 9th, 2005 05:11 pm (UTC)
I know about HeLa
I have worked with HeLa cells before. To say they are immortal is somewhat misleading. They still need to be maintained and cultured on a media plate. If scientists had never found these cells and continued to culture them...there would be none. So on their own they are not immortal.

I'm not sure how the growth process of these cells is maintained but most cancers if given a kinase rich environment will grow on a pitri dish. Kinase is a known cyclin which aids in mitosis and coninues the replication process. In fact, a cyclin error on any cellular pathway will give a cell immortality in the sense it will coninue to divide without stopping. The definition of cancer itself is cell immortality.

It has nothing to do with telomerase. I think your friend is thinking of mieosis, which creates telomerase. As you age, your cells divide and your DNA along with it. During the cell replication process (mitosis), your telomeres(the ends of DNA rich in A-G code but not a true part of your genetic make up) are sort of eaten away if that makes sense. Some scientists believe you could live forever if you had really long telomeres. Teleomerae softens the telomere shortening process but does not inhibit it.

This is a good reference: http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/T/Telomeres.html
note there are many cancers which are essentialy immortal.

How is this like goldfish?

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