What is the mast cell?

The

and the cell cell is part of a group of cells called leukocytes . Leukocytes are white blood cells and are found in blood plasma with erythrocytes , red blood cells. Gramp cells have immunological functions or are part of the immune system. They are part of the early warning system. When stimulated, they release chemicals that signal damage or infection and cause inflammation in the area. Two common mediators are histamine and heparin. Histamine, the most important chemical mediator, causes capillary walls to become permeability or transmitted substances. Heparin prevents blood clotting so that blood can flow into the area of ​​infection or injury. Driving cells play an important role in allergic reactions because of their ability to produce and release histamine.

During the immune response, the mast cell is stimulated by a specific type of antibody, called IgE or Immneoglobulin E. Antibodies are grouped into classes based on a chemical chain or tail thatThey are connected. There are five classes of antibodies based on specific amino acid sequence of chains, A, D, E, G and M. All antibodies are called immunoglobulins, so they are referred to as IgA, IgD, etc.

IgE antibodies connect to the outside of the catering cells. All antibodies are specific to specific antigens. The area of ​​binding against antibody antigen is left free when they bind to the caustic. When a ginning cell with an antibody connected with a specific antigen encounters the antibody, the washcloth cell is stimulated to release histamine.

histamine is released not only to meet a toxic substance, but also relaxes when caustic cells detect damage. It causes dilatation of nearby blood vessels, allowing more blood to achieve injury or infection. Blood plasma is rich in antibodies and other cells of the immune system. In this way, causal cells act as an alarm system for the immunitnThe cells and attract them to the required area of ​​infection or damage. The fluid that escapes into the area is what causes swelling during the infection.

Sometimes the body has exaggerated foreign substances that are actually harmless. Most allergic reactions are caused by uncontrolled histamine release when the immune system is damaged. Symptoms of the allergic reaction are well known, but the basic cause is less clear. Many symptoms of allergies can be attributed to histamine, so it is clear that galvanizing cells are involved. Antihistamins block histamine receptors on tissues reducing the effect of histamine on these cells and subsequent allergic symptoms.