Cytokines provide non specific immunity against virus is

Options

A. interleukin
B. tumour necrosis
C. colony stimulating
D. interferons

Answer

**Step-by-Step Text Solution:**

1. **Understanding Cytokines**: Cytokines are small proteins that are important in cell signaling. They play a crucial role in the immune system, particularly in the response to infections.

2. **Role of Interferons**: Among the various cytokines, interferons are specifically known for their role in providing non-specific immunity against viruses. They are produced by infected cells and help to protect neighboring uninfected cells.

3. **Mechanism of Action**: When a virus infects a cell, that infected cell releases interferons. These interferons act on nearby non-infected cells, signaling them to enhance their defenses against potential viral infection. This process helps to limit the spread of the virus.

4. **Types of Interferons**: There are three main types of interferons:
- **Alpha Interferons**: Produced by leukocytes (white blood cells).
- **Beta Interferons**: Produced by fibroblasts and epithelial cells.
- **Gamma Interferons**: Produced by T-cells and natural killer cells.

5. **Immune Modulation**: Interferons not only help in protecting cells but also modulate the immune response, enhancing the overall immune system's ability to fight off infections.

6. **Conclusion**: Therefore, the cytokines that provide non-specific immunity against viruses are called interferons.

**Final Answer**: Interferons provide non-specific immunity against viruses.

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