LAMP1 and columnar cell hyperplasia of the breast: The autophagy inhibitor 3-MA and lysosome inhibitor CQ failed to alter the protein level of OX-42 after CCH, while the microglial activation inhibitor minocycline could reverse the CCH-induced protein levels of LC3, p62 and LAMP1, suggesting that microglial overactivation may be the upstream regulator of autophagy after CCH.