Questions: What is the cytokine that slows the growth of a tumor and kills sensitive tumor cells?

What is the cytokine that slows the growth of a tumor and kills sensitive tumor cells?

Solution

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The answer is TNF (Tumor Necrosis Factor).

Explanation for each option:

  1. IL2 (Interleukin-2): This cytokine primarily stimulates the growth and activity of T cells and B cells. It is not specifically known for directly killing tumor cells or slowing their growth.
  2. Gamma interferon (Interferon-gamma): This cytokine has a role in activating macrophages and enhancing the immune response, but it is not primarily known for directly killing tumor cells.
  3. TNF (Tumor Necrosis Factor): This cytokine is known for its ability to induce apoptosis (cell death) in tumor cells and inhibit their growth. It is specifically named for its role in tumor necrosis.
  4. Beta interferon (Interferon-beta): This cytokine is mainly involved in antiviral responses and modulation of the immune system, rather than directly targeting tumor cells.

Summary: The cytokine that slows the growth of a tumor and kills sensitive tumor cells is TNF (Tumor Necrosis Factor).

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