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  1. What are Cytokines? Types & Function - Cleveland Clinic

    Jan 3, 2023 · Cytokines are proteins that function as chemical messengers in your immune system. Your immune system is a network with several parts that work together to protect your …

  2. Cytokine - Wikipedia

    Cytokines (/ ˈsaɪtəkaɪn /) [1] are a broad and loose category of small proteins (~5–25 kDa [2]) important in cell signaling. Cytokines are produced by a broad range of cells, including …

  3. Cytokines: Names and Numbers You Should Care About - PMC

    Cytokines play an important role in host defense against microorganisms. They orchestrate innate immunity by inducing protective local inflammation and systemic acute phase responses. …

  4. What Are Cytokines and How Do They Signal Immune Responses?

    Aug 5, 2025 · Cytokines are small proteins, typically made up of a few hundred amino acids, secreted by cells of the immune system and other cell types. Their job is to transmit signals …

  5. Cytokines: Introduction | British Society for Immunology

    Cytokines are a large, diverse family of small proteins or glycoproteins (usually smaller than 30 kDa). Although initially described for their immunomodulatory capabilities, additional roles …

  6. Cytokine | Biochemistry, Cell Biology & Immunology | Britannica

    Sep 13, 2025 · Cytokine, any of a group of small, short-lived proteins that are released by one cell to regulate the function of another cell, thereby serving as intercellular chemical messengers.

  7. Understanding cytokines and their role in the immune system

    Cytokines are small signaling proteins secreted by cells that regulate immunity, inflammation, and hematopoiesis, playing essential roles in intercellular communication during immune …

  8. Cytokines: Inflammatory Immune System Response and Release

    Jun 29, 2022 · Cytokines are proteins that promote immune cells and pro-inflammatory cells to grow and take action. They are key to the body’s inflammatory immune response.

  9. 20.4A: Types of Cytokines Participating in Immune Response

    Cytokines are small cell-signaling protein molecules secreted by numerous cells and used extensively in intercellular communication. Cytokines can be classified as proteins, peptides, …

  10. What are Cytokines? - News-Medical.net

    Apr 6, 2023 · Cytokines are cell signalling molecules that aid cell to cell communication in immune responses and stimulate the movement of cells towards sites of inflammation, infection and …