My understanding is that the complete medium with serum sometimes contains the ligand that can bind to your chemotaxis receptor, which cause receptor internalization and desensitization. Incubate them for 15-30min in medium without serum or starve them overnight will resensize the migration and increase receptor expression. If you are sure your culture medium does not contain the ligand, you do not need to starve them.
【在 s****9 的大作中提到】 : My understanding is that the complete medium with serum sometimes contains : the ligand that can bind to your chemotaxis receptor, which cause receptor : internalization and desensitization. Incubate them for 15-30min in medium : without serum or starve them overnight will resensize the migration and : increase receptor expression. If you are sure your culture medium does not : contain the ligand, you do not need to starve them.