Tatyana Ruzhentsova, Deputy Director for Clinical Work at the Moscow Research Institute of Epidemiology and Microbiology of Rospotrebnadzor, explained why antibodies after coronavirus can attack living cells, informs RIA News.
As Ruzhentsova explained, each person has antibodies to cells of various organs and tissues – they are needed to cleanse the body of old dead cells, since there is a constant renewal process.
“Such autoantibodies are sometimes called scavenger antibodies. With any infectious disease, the number of dying cells increases. The stronger the manifestations of the infection, the greater their number, which requires the active work of scavenger antibodies. Therefore, we expect an increase in the number of autoantibodies in those who have undergone COVID-19,” she said. Ruzhentsov.
However, a large amount of damage to the body leads to the fact that antibodies can become more active and begin to show aggression also against living cells. However, according to the doctor, there is no data on the symptoms of this process yet, and the presence of “scavengers” is not yet a disease, but only its possibility.
Anna Toptygina, head of the cytokine laboratory at the same research institute, added that post-infection autoimmune processes develop in no more than 2-3% of patients. And in most cases – with untimely or improper treatment.
Formerly American scientists declaredthat antibodies after COVID-19 may not work properly and attack healthy cells in the body. According to the immunologist Nikolai Kryuchkov, this may promote the development of multiple sclerosis, psoriasis, rheumatoid arthritis and other autoimmune diseases.