Sejttípusheterogenitás

Sejttípusheterogenitás refers to the diversity of cell types within a given tissue, organ, or even a population of cells. This heterogeneity is a fundamental aspect of biological systems, contributing to specialized functions and complex organismal development. For example, the human brain contains numerous distinct neuronal subtypes and glial cells, each with unique roles in information processing and support. Similarly, the immune system comprises a vast array of immune cells, such as lymphocytes, macrophages, and granulocytes, which collectively defend the body against pathogens. The study of sejttípusheterogenitás is crucial for understanding normal physiological processes, disease mechanisms, and for developing targeted therapeutic strategies. Techniques like single-cell RNA sequencing have revolutionized our ability to identify and characterize these diverse cell populations at an unprecedented resolution. Understanding the origins and maintenance of sejttípusheterogenitás is an active area of research, with implications for developmental biology, cancer research, and regenerative medicine.