Bone marrow mesenchymal stem cell-derived extracellular vesicles containing miR-181d protect rats against renal fibrosis by inhibiting KLF6 and the NF-κB signaling pathway oleh Shi-Jun Wang, Zhen-Zhen Qiu, Fu-Wei Chen, An-Li Mao, Jun-Chao Bai, Ye-Jing Hong, Zhong-Pan Zhang, Wu-An Zhu, Zhi-Wei Zhang, Hao Zhou