Effects of Lithium on Cell Growth
One of the major dominant themes in cell biology is elucidating at the molecular level the mechanisms by which alterations in the external microenvironment influence the proliferation of mammalian cells. It is a well-described phenomenon that a number of agents or conditions markedly influence the rate of cellular proliferation. Hormones, serum or growth factors, when added to cultures of quiescent cells in a short period of time, all can induce a number of metabolic changes leading to the initiation of DNA synthesis and cell division (1–4). These substances are thought to act via their interaction with the cell membrane by the activation of a second signal that is transmitted into the interior of these cells (5–7). In the absence of these factors mammalian cells stop proliferating and enter a phase referred to as the resting phase of Gl/Go, only to assume proliferation when the absent agent is resupplied.
KeywordsGrowth Effect Monovalent Cation Kidney Epithelial Cell Canine Kidney Epithelial Cell High Lithium Concentration
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