What is phenotypic dermatology?
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Phenotypic dermatology is a field of dermatology that considers the phenotype of skin cells as the basic unit of analysis of the pathological process.
Unlike the traditional morphological approach, phenotypic dermatology focuses on the objective study of the subpopulation composition of skin cells, their functional state and intercellular interactions. This is a look inside the skin, at the level of its cells, to their phenotypes and complex intercellular relationships. Here, the unit of analysis is not the morphological element, but the living cell and its place in the tissue orchestra.
Based on the flow cytometry method and the technologies I have developed, it is possible to objectively measure what previously escaped the eye: the composition of subpopulations of skin cells, their dynamics, the degree of interaction and response. These data are combined into a "skin cytoimmunogram" — a skin map that allows you to prescribe accurate, personalized treatment. This opens the way to a more scientific, accurate and honest dermatology of the future.
The path I chose required going beyond the usual clinical logic. I had to turn to conceptual analysis to find a language to describe new phenomena. After all, it is the diversity of intercellular relationships that gives rise to properties that determine skin health or disease. Delving into this diversity takes dermatology to a new level — the phenotypic one. He allows you to say,
"What is there is measurable, even if the doctor doesn't see it."
Arguing that the phenotype of a subpopulation of cells becomes the "unit of measurement" of the skin condition, I am aware of the radical message, but at the same time the need for such a sharp turn in the diagnostic thinking of a dermatologist, since it opens up a wide class of research tasks and new therapeutic possibilities. How can you resist?
Phenotypic dermatology is a new scientific paradigm in which the diagnosis and treatment of skin diseases are based not on visual signs, but on objective characteristics of cellular phenotypes and their interactions.

Unlike classical dermatology, which is based on the description of the morphological elements of the rash, phenotypic dermatology considers the skin as a dynamic system of subpopulations of cells and the immune microenvironment.
The methodological basis is flow cytometry and the skin cytoimmunogram method developed by me, a method for obtaining and analyzing viable cell suspensions that allows us to determine the subpopulation composition of cells, their phenotypes and functional state. This approach makes it possible to move from subjective diagnosis to a precision (accurate and measurable) assessment of skin condition, where the "unit of measurement" is the cell phenotype rather than the clinical symptom.
Phenotypic dermatology combines the ideas of cell biology, immunology and systems analysis, creating the basis for personalized therapy.
It opens the way to predicting the course of diseases, choosing optimal treatment methods, and monitoring the effectiveness of interventions. Thus, the theory forms the foundation for a new, scientifically based and measurable dermatology – the dermatology of phenotypes.