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Railroads --- Signaling

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Signals and signaling --- History

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The essential trace element zinc plays indispensable roles in multiple cellular processes. It regulates a great number of protein functions, including transcription factors, enzymes, adapters, and growth factors as a structural and/or catalytic factor. Recent studies have highlighted another function of zinc as an intra- and intercellular signaling mediator, which became recognized as the "zinc signal". Indeed, zinc regulates cellular signaling pathways, which enable conversion of extracellular stimuli to intracellular signals, and controls various intracellular and extracellular events, and thus zinc mediates communication between cells. The zinc signal is essential for physiology, and its dysregulation causes a variety of diseases, such as diabetes, cancer, osteoarthritis, dermatitis, and dementia. This Special Issue focuses on crucial roles of zinc signaling in biological processes in molecular and physiological basis, addressing the future directions and questions underlying this unique phenomenon. Because there is growing interest and attention in physiopathological contribution of zinc signal, we believe this Special Issue will provide very timely information on it and thus should appeal to a wide range of readers.

Signals and signaling.

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Ageing is a complex process that affects all living organisms. Senescence is not only conceivable in multicellular organisms, but also in unicellulars. Unlike certain diseases that have specific morbidity rates, ageing is a physiological process that affects all individuals that live long enough (unaffected by i.e. predation or famine) to experience senescence.

Signals and signaling.

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This eBook is a collection of articles from a Frontiers Research Topic. Frontiers Research Topics are very popular trademarks of the Frontiers Journals Series: they are collections of at least ten articles, all centered on a particular subject. With their unique mix of varied contributions from Original Research to Review Articles, Frontiers Research Topics unify the most influential researchers, the latest key findings and historical advances in a hot research area! Find out more on how to host your own Frontiers Research Topic or contribute to one as an author by contacting the Frontiers Editorial Office: frontiersin.org/about/contact

TNFR signaling --- TLR signaling --- NLR Signaling --- cytokine signaling --- antigen receptor signaling --- NF-kB --- Inflammation --- Cancer --- Bone Resorption --- innate and adaptive immunity