Acute kidney injury (AKI) poses a severe threat to human health. MicroRNAs (miRNAs/miRs) are known to be involved in the progression of AKI; however, the function of miR-1184 in AKI remains unclear. Thus, the aim of the present study was to examine the role of this miRNA in kidney injury. In order to mimic AKI
in vitro
, HK-2 cells were treated with cisplatin. Bioinformatics analysis was performed to explore the differentially expressed miRNAs in AKI. A Cell Counting Kit-8 assay and flow cytometry were performed to examine cell viability and apoptosis, respectively. mRNA expression levels were detected via reverse transcription-quantitative PCR, and protein levels were investigated by western blot analysis. ELISA was performed to examine the levels of IL-1β and TNF-α in the cell supernatants. The results revealed that miR-1184 expression was downregulated in AKI. Exosomes derived from miR-1184 agomir-treated mesenchymal stem cells (MSCs) significantly reversed cisplatin-induced cell growth inhibition by inhibiting apoptosis. Moreover, forkhead box O4 (FOXO4) was found to be the direct target of miR-1184, and exosomes expressing miR-1184 notably inhibited cisplatin-induced inflammatory responses in HK-2 cells via the mediation of IL-1β and TNF-α. Furthermore, exosomes derived from miR-1184 agomir-treated MSCs significantly induced G
1
phase arrest in HK-2 cells via the regulation of FOXO4, p27 Kip1 and CDK2. In conclusion, the present study demonstrated that exosomal-miR-1184 derived from MSCs alleviates cisplatin-associated AKI. Thus, the findings presented herein may shed new light onto the exploration of novel strategies for the treatment of AKI.