Journal of Biochemical Sciences

Cell signaling and regulation

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Cell signaling and regulation encompass intricate molecular communication systems within cells, governing gene expression, growth, and differentiation. This dynamic process involves signaling molecules, receptors, and transduction pathways that regulate cellular responses. Key mechanisms include phosphorylation cascades and second messenger systems. Hormonal pathways and signaling involve complex interactions between cells, facilitating communication crucial for physiological regulation. Cells transmit signals through various molecular mechanisms, such as hormones binding to receptors. This process regulates diverse cellular functions, ensuring homeostasis.