Citokin

Citokin is not a widely defined term in formal scientific nomenclature. In published sources, it typically appears as a misspelling or transliteration variant of either cytokine or cytokinin, depending on the context.

If citokin is intended as a reference to cytokines, these are small secreted proteins that mediate communication between cells. They regulate inflammation, cell growth, and immune responses and are produced by a variety of cells, including leukocytes, by binding to specific receptors on target cells.

If citokin is intended as a reference to cytokinins, these are plant hormones derived from adenine that promote cell division and shoot formation, influence leaf senescence, and interact with other hormones such as auxins to shape organ development. Cytokinins are widely used in plant tissue culture and biotechnology to influence growth patterns.

In other contexts, citokin may appear as a brand name, a fictional term, or a simple typographical error; there is no single, universally recognized definition in the scientific literature. When encountering the term, it is important to consider the surrounding context to determine whether it is referring to cytokines, cytokinins, or another use. See also cytokine and cytokinin for more precise terminology.