International Journal of Nanomedicine (Nov 2023)
Emodin Ameliorates Severe Acute Pancreatitis-Associated Acute Lung Injury in Rats by Modulating Exosome-Specific miRNA Expression Profiles
Abstract
Qi Yang,1– 4 Yalan Luo,1– 3 Peng Ge,1– 3 Bowen Lan,1– 3 Jin Liu,1– 3 Haiyun Wen,1– 3 Yinan Cao,1– 3 Zhenxuan Sun,1– 3 Guixin Zhang,1– 3 Huiming Yuan,5 Lihua Zhang,5 Hailong Chen1– 3 1Department of General Surgery, the First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning, 116011, People’s Republic of China; 2Institute (College) of Integrative Medicine, Dalian Medical University, Dalian, Liaoning, 116011, People’s Republic of China; 3Laboratory of Integrative Medicine, the First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning, 116011, People’s Republic of China; 4Department of Traditional Chinese Medicine, the Second Affiliated Hospital of Dalian Medical University, Dalian, 116023, People’s Republic of China; 5CAS Key Laboratory of Separation Science for Analytical Chemistry, National Chromatographic Research and Analysis Center, Dalian Institute of Chemical Physics, Chinese Academy of Science, Dalian, 116023, People’s Republic of ChinaCorrespondence: Hailong Chen, Email [email protected]: Numerous preclinical investigations have exhibited the beneficial impact of emodin (EMO) on the management of severe acute pancreatitis (SAP)-associated acute lung injury (ALI). However, the potential of EMO to mitigate organ damage through the modulation of exosome (Exo)-specific miRNA expression profiles remains unclear.Methods: The SAP rat model was established by retrograde injection of 5% sodium taurocholate into the pancreatic bile duct. Rats received intragastric administration of EMO at 2 h and 12 h post-modeling. Plasma and bronchoalveolar lavage fluid (BALF)-derived exosomes were isolated and purified from SAP rats treated with EMO. The therapeutic effects of these Exos in SAP rats were assessed using hematoxylin-eosin staining and measurement of inflammatory factor levels. MicroRNA (miRNA) sequencing was conducted on plasma and BALF-derived Exos, and rescue experiments were performed to investigate the function of NOVEL miR-29a-3p in the treatment of SAP using EMO.Results: EMO exhibits ameliorative effects on pancreatic and lung injury and inflammation in rats with SAP. Plasma/BALF-derived Exos from EMO-treated SAP rats also have therapeutic effects on SAP rats. The miRNA expression profile of plasma and BALF-derived Exos in SAP rats underwent significant changes upon exposure to EMO. In particular, 34 differentially expressed miRNAs (DEmiRNAs) were identified when comparing BALF-SAP+EMO-Exo and BALF-SAP-Exo. 39 DEmiRNAs were identified when comparing plasma-SAP+EMO-Exo to plasma-SAP-Exo. We found that SAP rats treated with Exos derived from BALF exhibited a more potent therapeutic response than those treated with Exos derived from plasma. EMO may rely on NOVEL-rno-miR-29a-3p expression to prevent pulmonary injury in SAP rats.Conclusion: The mechanism of action of EMO is observed to have a significant impact on the miRNA expression profile of Exos derived from plasma and BALF in SAP rats. NOVEL-rno-miR-29a-3p, which is specific to Exos, and is derived from BALF, may play a crucial role in the therapeutic efficacy of EMO. Plain Language Summary: Exosomes extracted from plasma/BALF of EMO-treated SAP rats show a substantial therapeutic impact on SAP-Associated ALI, with BALF-derived exosomes having a higher therapeutic effect than plasma-derived exosomes.EMO dramatically altered the miRNA expression patterns of plasma and BALF-derived exosomes in SAP rats.The lung protective effect of EMO in SAP rats is somewhat reliant on Novel-rno-miR-29a-3p expression.Keywords: severe acute pancreatitis, acute lung injury, emodin, exosome, microRNA
