`alpha` - Interferons are used in the cancer treatment, to

Options

A. Activate the immune system
B. Suppress the immune system
C. Activate the nervous system
D. Supress the endocrine system

Answer

To answer the question about the use of alpha interferons in cancer treatment, let's break down the information step by step:

### Step-by-Step Solution:

1. **Understanding Cancer Treatment**: Cancer is typically treated through three main methods: surgery, radiation therapy, and chemotherapy. Each method has its specific role in combating cancer.

2. **Role of the Immune System**: The immune system is crucial in identifying and destroying abnormal cells, including cancerous cells. However, cancer cells can often evade detection by the immune system.

3. **Introduction to Alpha Interferons**: Alpha interferons are a type of cytokine, which are proteins that play a role in the immune response. They are known for their ability to enhance the immune system's response.

4. **Function of Alpha Interferons in Cancer Treatment**: When alpha interferons are administered, they help to activate the immune system. This activation enables the immune system to recognize and attack cancerous cells more effectively.

5. **Conclusion**: Therefore, the primary use of alpha interferons in cancer treatment is to activate the immune system, allowing it to better identify and destroy tumor cells.

### Final Answer:
Alpha interferons are used in cancer treatment to **activate the immune system**.

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