Maturation of T-Cells promoted by the hormone

Options

A. Estradiole
B. Melatonin
C. Thymosin
D. Thyroxine

Answer

**Step-by-Step Solution:**

1. **Identify the Type of Cell**: The question asks about the maturation of T-cells, which are a type of white blood cell (WBC) involved in the immune response.

2. **Understand the Role of T-Cells**: T-cells are crucial for adaptive immunity, meaning they help the body adapt its immune response to specific pathogens.

3. **Location of Maturation**: T-cells mature in the thymus gland, which is an essential organ for the development of the immune system.

4. **Hormones Involved in T-Cell Maturation**: The question specifically asks for the hormone that promotes the maturation of T-cells.

5. **Evaluate the Hormones**:
- **Steroid Hormones**: These are a group of hormones that include female sex hormones but are not directly involved in T-cell maturation.
- **Melatonin**: This hormone is primarily involved in regulating sleep and does not play a role in T-cell maturation.
- **Thymosin**: This hormone is produced by the thymus gland and is specifically known to aid in the maturation of T-cells.
- **Thyroxine**: Produced by the thyroid gland, it regulates metabolism and growth but is not directly involved in T-cell maturation.

6. **Conclusion**: Based on the evaluation, the hormone that promotes the maturation of T-cells is **thymosin**.

**Final Answer**: The maturation of T-cells is promoted by the hormone **thymosin**.

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