Abstract
Specialized cell populations should exist to carry out intercellular
regulation of the growth of various types somatic tissues (“cellular
hyper
cycle”). Based on the data of immunology and cell biology, it is
suggested that such a system should be represented by specialized
T-lymphoidcells. The function of the regulation of growth of various types of
somatic tissues may be more primary in phylogenies in the formation of
the
immune system (new theory of the origin of the immune system). The
age-related immune decrease in the function of such regulatory cells
may be the main mechanism of aging of the organism’s self-renewing
somatic tissues and may determine an age-related decrease in the growth
potential of tissues of an aged organism (new immune theory of aging).
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