Cellular interactions is a field of research that focuses on how cells communicate with each other and respond to their environment. This includes studying the signaling pathways and molecular mechanisms that regulate cell-to-cell communication, as well as the interactions between cells and their surrounding tissues. Cellular interactions play a critical role in processes such as development, immune response, and tissue repair, and understanding these interactions is crucial for advancing our knowledge of biology and disease. Researchers in this field use a variety of techniques, including molecular biology, microscopy, and bioinformatics, to study how cells interact and communicate with each other in health and disease.