A life-time of hematopoietic cell function: ascent, stability, and decline.
Abstract
Aging is a set of complex processes that occur temporally and continuously. It is generally a unidirectional progression of cellular and molecular changes occurring during the life stages of cells, tissues and ultimately the whole organism. In vertebrate organisms, this begins at conception from the first steps in blastocyst formation, gastrulation, germ layer differentiation, and organogenesis to a continuum of embryonic, fetal, adolescent, adult, and geriatric stages. Tales of the "fountain of youth" and songs of being "forever young" are dominant ideas informing us that growing old is something science should strive to counteract. Here, we discuss the normal life stages of the blood system, particularly the historical recognition of its importance in the early growth stages of vertebrates, and what this means with respect to progressive gain and loss of hematopoietic function in the adult.
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Research summary
The paper discusses the life stages of the blood system and the changes in hematopoietic function over time, which is relevant to understanding aging processes. However, it primarily focuses on the historical recognition of these functions rather than proposing solutions to the root causes of aging or lifespan extension. Thus, while it contributes to the field, its impact is limited and more incremental than groundbreaking.
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