Integrative analysis of differential miRNA and functional study of miR-21 by seed-targeting inhibition in multiple myeloma cells in response to berberine. - Xiaochuang Luo; Jingyi Gu; Rongxuan Zhu; Maoxiao Feng; Xuejiao Zhu; Yumin Li; Jia Fei (BMC Syst. Biol., 2014)