Hminx2 RNAi injection into connective glial cells blocked microglial migration to nerve lesions. Connectives were injected with Hminx2 RNAi or Hminx1 RNAi 2 d before the experiments, as in Fig. 5 and Materials and methods, except that both connectives were injected with the same type of RNAi. Microglia accumulations after injury were performed according to normal laboratory methods. The Hminx2 RNAi condition had significantly less accumulation than the Hminx1 RNAi condition (P < 0.05; n = 3).