The immune system is a network of cells that organize themselves to defend our body against outside organisms, such as microbes and other bacteria. This defense is carried out by directly eliminating the aggressor by specific cells (white blood cells) by devouring the intruder (phagocytosis), or by producing different defense substances such as enzymes, cytokines, or antimicrobial peptides.
How is the immune system formed? The concept of two barriers of immunity.
The immune system exists in all living beings and is made up of two barriers which have a complementary role:
- The first barrier, innate immunity, is formed by cells of our tissues such as skin cells (keratinocytes) and cells of immunity , such as white blood cells (polynuclear cells and macrophages). The role of this immunity is to eliminate, not specifically, but instantly, the aggressor by digesting it (phagocytosis) and by causing an inflammatory reaction. The constituents of this inflammation (enzymes, free radicals, cytokines) will contribute to the elimination of the intruder. Once digested, the foreign body debris will be used to more specifically activate cells (lymphocytes) of the 2nd barrier of immunity .
- The second barrier, adaptive immunity, is specific and relies on cells called T and B lymphocytes.
These lymphocytes, once educated, will specifically recognize the aggressor or its debris, then will respond appropriately to suppress any intruder who would have survived the action of the 1st barrier of immunity. Each aggressor will then be eliminated by the cytotoxic action of the T lymphocytes and by the action of the antibodies produced by the B lymphocytes.
During the first meeting with the aggressor, the lymphocyte response is quite slow compared to the response of innate immunity, which is more immediate. However, in the case of re-aggression, the lymphocyte response will be much faster, because the lymphocytes have kept the memory of the aggressor, unlike the cells of innate immunity which do not have “immune memory”.
Discover our selection of food supplements to improve your immune system in your online pharmacy specializing in natural remedies.
Cold, cough, flu, runny nose, fever, sore throat. To avoid all its symptoms during the winter, it is essential to protect yourself by strengthening your natural defenses. Indeed, a strengthened organism resists better to external aggressions and falls ill less easily.
To offer you the best choice of natural, qualitative and effective cures , our pharmacy experts have assembled food supplements made from natural and organic ingredients , in most cases, and therefore containing excellent concentrations of active ingredients. to help you stay fit and relieve your symptoms.
