Helper
Helper
Helper (pronunciation: /ˈhɛlpər/), from the Old English helpian, meaning to assist or aid, is a term used in various medical contexts. It often refers to a type of cell or molecule that facilitates a biological process.
Helper T Cells
Helper T cells are a type of T cell that play an important role in the immune system. They do not directly kill infected cells, as cytotoxic T cells do. Instead, they help activate cytotoxic T cells and macrophages to attack infected cells, and they also stimulate B cells to secrete antibodies.
Helper Molecules
In biochemistry, a helper molecule is a non-protein compound that assists in the function of an enzyme. These molecules are often vitamins or minerals that are required for the enzyme's activity. Examples include coenzyme A, NAD+, and FAD.
Helper Proteins
Helper proteins are proteins that assist in the folding of other proteins. They are also known as chaperone proteins. These proteins help to prevent incorrect folding and aggregation, which can lead to diseases such as Alzheimer's disease and Parkinson's disease.
Related Terms
- Aid: To provide support or relief.
- Assist: To give support or aid.
- Facilitate: To make an action or process easy or easier.
External links
- Medical encyclopedia article on Helper
- Wikipedia's article - Helper
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