basofielen

Basofielen, also known as basophils, are a type of white blood cell in the granulocyte family. They are the least common type of white blood cell, typically making up less than 1% of circulating leukocytes in healthy individuals. Basophils are characterized by the presence of large, dark blue granules within their cytoplasm, which stain intensely with basic dyes. These granules contain a variety of potent inflammatory mediators, including histamine, heparin, and serotonin.

The primary function of basophils is to mediate allergic reactions and inflammatory responses. When the body encounters an allergen, such as pollen or certain foods, basophils can bind to immunoglobulin E (IgE) antibodies that are specific to that allergen. Upon subsequent exposure to the allergen, the IgE antibodies cross-link on the surface of the basophil, triggering the release of the granule contents. This degranulation process releases inflammatory mediators that contribute to the symptoms of allergies, such as itching, swelling, and bronchoconstriction.

Beyond their role in allergies, basophils also play a part in immune responses to parasites and in the regulation of other immune cells. They can interact with T cells and influence the development of adaptive immunity. While their precise functions are still being researched, basophils are recognized as important participants in both innate and adaptive immune system processes.