Status Updates From The Telomerase Revolution: ...

Unfortunately this is one that eluded me.. did not finish.

Telomerase should be enormously beneficial in preventing or curing most age-related diseases as well as significantly lowering the risk of cancer.

B lymphocytes divide more frequently in the marrow, prior to entering the circulation, while T lymphocytes divide more frequently after entering the circulation.
Only about 1 in 30 immune cells is actually in the circulatory system; the rest are in tissues, especially lymphatic tissues, and the pattern and timing of their entry into the circulatory system can vary between different cell types.

As telomeres shorten with age, a large number of genes change their patterns of expression. Some increase their expression, some decrease their expression, many change how they respond to other genes or to changes in the environment.

Telomerase shortening was not only correlated with cell aging, but that it actually caused cell aging.