Many types of cells serve as guidepost cells. Guidepost cells are identified by their singular importance in axon guidance of other cells. To qualify as a guidepost cell, neurons hypothesized to be influenced by the guidance the cell are examined during development with the guidance cell in question present and missing (either by destroying the cell or through gene knockout).
^Palka, J; John Palka, Kathleen E. Whitlock, Marjorie A. Murray (1992-02). "Guidepost cells". Current Opinion in Neurobiology2 (1): 48–54. doi:10.1016/0959-4388(92)90161-D. PMID1638135.Check date values in: |date= (help);|accessdate= requires |url= (help)