What are autocrine glands?

Autocrine glands are glands that secrete hormones that act on the same cells that produced them. This is in contrast to endocrine glands, which secrete hormones that travel through the bloodstream to act on cells in other parts of the body. Autocrine glands are found in many different tissues and organs throughout the body, and they play a role in a variety of physiological processes, including:

- Cell growth and differentiation: Autocrine hormones can stimulate the growth and differentiation of cells in the surrounding tissue. For example, the hormone epidermal growth factor (EGF) is an autocrine hormone that stimulates the growth and differentiation of epithelial cells.

- Tissue repair: Autocrine hormones can also help to repair damaged tissue. For example, the hormone transforming growth factor-beta (TGF-beta) is an autocrine hormone that helps to promote the healing of wounds.

- Immune response: Autocrine hormones can also play a role in the immune response. For example, the hormone interferon is an autocrine hormone that helps to protect cells from viral infection.

Autocrine glands are an important part of the body's regulatory system. They help to maintain homeostasis and ensure that cells function properly.