Abstract
Telomerase activity and telomere maintenance in certain somatic cells of
human adults support the proliferative capacity of these cells and thus
contribute to their regenerative potential, and telomerase activity and
telomere length are commonly considered lifespan predictors. Eusocial
insects provide excellent models for aging research based on their
extraordinary caste-related lifespan differences that contradict the
typical mammalian fecundity/lifespan trade-off. Telomerase activity is
upregulated in the reproductive, long-lived individuals of eusocial
insects such as queens and kings, and telomerase activity may act as a
key factor in their extended longevity. But, as documented by the
presence of telomerase in somatic tissues of numerous invertebrate and
vertebrate species, the connection between telomerase activity and the
predicted lifespan is not clear. Here, I ask whether somatic telomerase
activity in eusocial reproductives may serve its non-canonical function
to protect its individuals against the metabolic stress due to
reproduction and reflect a more common phenomenon among species. Here, I
propose a hypothesis that the presence of telomerase activity in somatic
cells reflects a different reproduction strategy of species.