FIELD: medicine.
SUBSTANCE: method for determining the subpopulation composition of skin cells and obtaining the skin cytoimmunogram comprises sampling a skin biopsy specimen to a depth of 2 mm, homogenizing the tissue in a 0.9% aqueous solution of sodium chloride at a temperature of +23…+25°C, extracting the homogenate, filtering the homogenate through an inert filtering partition with a pore diametre of 20 mcm, centrifuging the homogenate at 400 g for 5 minutes at a temperature +23…+25°C. After centrifugation, the viability of the skin cells is determined, the skin cells are incubated for 20 minutes with monoclonal antibodies fluorochrome-labeled for flow cytometry, phenotyping of the skin cells is carried out, the number of skin cells of a specific phenotype - skin cytoimmunogram - are determined: keratinocytes CD49f+, among them activated CD49f+HLA-DR+; fibroblasts (fibrocytes) CD45-CD14-CD44+, among them activated CD45-CD14-CD44+CD80+; mast cells CD249+, among them activated CD249+CD63+; monocytes (macrophages) CD45+CD14+, among them activated CD45+CD14+HLA-DR+; intra-epidermal macrophages CD207+, among them activated CD207+CD80+, CD207+HLA-DR+, CD207+CD80+HLA-DR+; endothelial cells CD146+, among them activated CD146+CD34+, CD146+HLA-DR+, CD146+CD54+, CD146+CD54+HLA-DR+; lymphocyte populations: T-lymphocytes CD45+CD3+, T-helpers CD45+CD3+CD4+CD8-, T-suppressors CD45+CD3+CD4-CD8+, B-lymphocytes CD45+CD3-CD19+, NK-lymphocytes CD45+CD3-CD16+CD56+.
EFFECT: application of this method allows to make a quantitative and functional characteristic of all the skin constituent elements for use in diagnosis.
Piogenic cocci, in the case of weakening the properties of the immune system of the skin (Yes, it is in the case of weakening the properties of immunity, because the normally functioning skin easily copes with numerous attacks of pyogenic microorganisms), can provoke the development of an island-inflammatory disease – pyoderma. Read more...
Later we may ask ourselves where we are going and why. This thought came to my mind under the sign “CANNIBALISM POLICE”… But it was too late, we had to go farther consoling ourselves with the thought that we were among the very few people in the whole world who had made some steps forward from the sign. Read more...
The results of several patented inventions investigate the dynamics of human skin cell subpopulation states. The immunological phenomena discovered thereby change not only the picture of skin conditions, but also the ideas about approaches to the diagnosis and treatment of skin diseases... read the article in full
Quite early on, I realized that to truly help a large number of patients, I needed to go beyond the individual approach and create a methodology. I recall the words of Edith Piaf, who said, "I don't sing for everyone—I sing for everyone." And yet, she sang for everyone. So it was for me—there was that inspiration, that moment when the idea of phenotypic dermatology first arose. It was from this moment that the path to a systemic view of the skin began—not as a surface, but as an entire biological universe.
