3D Chemotaxis Assays

Question: How do 3D-based chemotaxis assays improve the study of immune cell infiltration into tumors?

Answer: Cell migration in a 3D matrix (such as Matrigel or collagen) is significantly different from movement on a flat surface, as cells must navigate through physical barriers. Utilizing advanced 3D chemotaxis assays provides a more accurate representation of how lymphocytes or neutrophils home toward chemoattractant gradients within the tumor microenvironment. These assays are vital for screening small molecules or biologics designed to modulate immune cell recruitment and improve therapeutic outcomes.