Science, Space and Technology News 2024
University of Helsinki researchers discovered that the capacity of intestinal stem cells to maintain cellular balance in the gut diminishes with age, and identified a new mechanism linking nutrient adaptation of these stem cells to aging. This insight could lead to methods for preserving gut function in the elderly.
The questions of how the nutrition status of the gut controls stem cell division and differentiation, and how the nutrient adaptation of stem cells changes as during aging have not been comprehensively answered. Nutrient adaptation refers to the way in which nutrients guide cell function. In other words, the size of the cells dynamically increases or decreases, depending on the dietary conditions. Such flexibility enables stem cells to differentiate in accordance with the prevailing nutrient status. By utilizing intestine-wide cell imaging, the researchers found that the nutrient adaptation of stem cell size and the resulting differentiation vary in different regions of the gut.
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