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Liu L, Zhang Y, Li X, Deng J. Microenvironment of pancreatic inflammation: calling for nanotechnology for diagnosis and treatment. J Nanobiotechnology 2023; 21:443. [PMID: 37996911 PMCID: PMC10666376 DOI: 10.1186/s12951-023-02200-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Accepted: 11/07/2023] [Indexed: 11/25/2023] Open
Abstract
Acute pancreatitis (AP) is a common and life-threatening digestive disorder. However, its diagnosis and treatment are still impeded by our limited understanding of its etiology, pathogenesis, and clinical manifestations, as well as by the available detection methods. Fortunately, the progress of microenvironment-targeted nanoplatforms has shown their remarkable potential to change the status quo. The pancreatic inflammatory microenvironment is typically characterized by low pH, abundant reactive oxygen species (ROS) and enzymes, overproduction of inflammatory cells, and hypoxia, which exacerbate the pathological development of AP but also provide potential targeting sites for nanoagents to achieve early diagnosis and treatment. This review elaborates the various potential targets of the inflammatory microenvironment of AP and summarizes in detail the prospects for the development and application of functional nanomaterials for specific targets. Additionally, it presents the challenges and future trends to develop multifunctional targeted nanomaterials for the early diagnosis and effective treatment of AP, providing a valuable reference for future research.
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Affiliation(s)
- Lu Liu
- Medical Imaging Key Laboratory of Sichuan Province, Department of Radiology, Affiliated Hospital of North Sichuan Medical College, 1 South Maoyuan Street, Nanchong, 637001, China
| | - Yiqing Zhang
- Institute of Burn Research Southwest Hospital State Key Lab of Trauma Burn and Combined Injury Chongqing Key Laboratory for Disease Proteomics Army Medical University, Chongqing, 400038, China
- Research Center for Tissue Repair and Regeneration Affiliated to the Medical Innovation Research Division and the 4th Medical Center of Chinese PLA General Hospita, PLA Medical College, 28 Fu Xing Road, Beijing, 100853, China
| | - Xinghui Li
- Medical Imaging Key Laboratory of Sichuan Province, Department of Radiology, Affiliated Hospital of North Sichuan Medical College, 1 South Maoyuan Street, Nanchong, 637001, China.
| | - Jun Deng
- Medical Imaging Key Laboratory of Sichuan Province, Department of Radiology, Affiliated Hospital of North Sichuan Medical College, 1 South Maoyuan Street, Nanchong, 637001, China.
- Institute of Burn Research Southwest Hospital State Key Lab of Trauma Burn and Combined Injury Chongqing Key Laboratory for Disease Proteomics Army Medical University, Chongqing, 400038, China.
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Li J, Jia Y, Cao F, Wang G, Li F. An in-Depth Exploration of the Genetic Interaction Network Between Ferroptosis and Acute Pancreatitis. J Inflamm Res 2023; 16:4425-4439. [PMID: 37822529 PMCID: PMC10563811 DOI: 10.2147/jir.s431601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 10/03/2023] [Indexed: 10/13/2023] Open
Abstract
Background Ferroptosis plays an important role in a variety of disease processes and is equally important in pancreatic diseases. However, the role of ferroptosis-related genes (FRGs) in acute pancreatitis (AP) remains unknown, and their specific potential mechanisms still need to be explored extensively. Methods AP-related gene microarray data were obtained from the GEO database, while FRGs were obtained from the ferroptosis database (FerrDb). Differentially expressed genes (DEGs) were screened by the "limma" package, and GSEA was performed. The corresponding ferroptosis-related differentially expressed genes (FRDEGs) were screened, and GO and KEGG pathway analyses were performed. A PPI network was constructed to identify hub FRDEGs by CytoHubba, MCODE and CTD scores. Transcription factors and miRNAs predicted using the NetworkAnalyst database were used to establish the regulatory network. Immune cell infiltration analysis was performed by the R package "ssGSEA" algorithm. The hub genes were validated by transcriptome sequencing of AP model mice and immunohistochemistry in rats and mice. Results A total of 82 FRDEGs were screened, and these genes were mainly associated with ferroptosis, hypoxic response, autophagy, mitophagy and immune inflammation. However, we also found that these genes are also jointly involved in other cell death modalities, such as apoptosis and necroptosis. Further analysis obtained 7 hub genes from 82 genes, and single-sample gene set enrichment analysis (ssGSEA) showed that the hub genes are closely associated with the infiltration of specific immune cells and the activation of immune pathways. Conclusion This study reveals the complex functions and important roles of ferroptosis-related genes in AP and provides gene targets for further studies of AP.
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Affiliation(s)
- Jie Li
- Department of General Surgery, Xuanwu Hospital, Capital Medical University, Beijing, People’s Republic of China
- Clinical Center for Acute Pancreatitis, Capital Medical University, Beijing, People’s Republic of China
| | - Yuchen Jia
- Department of General Surgery, Xuanwu Hospital, Capital Medical University, Beijing, People’s Republic of China
- Clinical Center for Acute Pancreatitis, Capital Medical University, Beijing, People’s Republic of China
| | - Feng Cao
- Department of General Surgery, Xuanwu Hospital, Capital Medical University, Beijing, People’s Republic of China
- Clinical Center for Acute Pancreatitis, Capital Medical University, Beijing, People’s Republic of China
| | - Gang Wang
- Department of Pancreatic and Biliary Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, People’s Republic of China
| | - Fei Li
- Department of General Surgery, Xuanwu Hospital, Capital Medical University, Beijing, People’s Republic of China
- Clinical Center for Acute Pancreatitis, Capital Medical University, Beijing, People’s Republic of China
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Ma Y, Li X, Liu Z, Xue X, Wang Y, Ma Y. HIF-1α-PPARγ-mTORC1 signaling pathway-mediated autophagy induces inflammatory response in pancreatic cells in rats with hyperlipidemic acute pancreatitis. Mol Biol Rep 2023; 50:8497-8507. [PMID: 37644373 DOI: 10.1007/s11033-023-08639-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Accepted: 06/26/2023] [Indexed: 08/31/2023]
Abstract
OBJECTIVE The incidence of hyperlipidemic acute pancreatitis (HLAP) has rapidly increased in recent years in China. Autophagy has been implicated in the inflammatory response of pancreatic cells in HLAP, but the molecular mechanisms remain unclear. METHODS In this study, the role of HIF-1α-PPARγ-mTORC1 pathway-mediated autophagy in the inflammatory response of pancreatic cells and the underlying molecular mechanism were investigated in a rat model of HLAP using immunohistochemistry, ELISA, electron microscopy, and western blot analysis. RESULTS The results revealed that autophagy was significantly increased and pancreatic injury was exacerbated in HLAP rats, and the inflammatory response was further exacerbated by treatment with rapamycin but relieved by treatment with 3-MA. Hyperlipidemia induced upregulation of HIF-1α and downregulation of PPARγ, which in turn led to an increase in autophagy and consequently exacerbation of the inflammatory response of pancreatic cells. CONCLUSIONS HIF-1α-PPARγ-mTORC1 pathway-mediated autophagy plays a critical role in the inflammatory response of pancreatic cells in HLAP, and interference with the HIF-1α-PPARγ-mTOR pathway can serve as a new strategy for the prevention and treatment of HLAP.
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Affiliation(s)
- Yumei Ma
- Medical College of Soochow University, Suzhou, 215123, Jiangsu, China
- Digestive Department of Qinghai Provincial People's Hospital, Xining, 810007, China
| | - Xiaolin Li
- Digestive Department of Qinghai Provincial People's Hospital, Xining, 810007, China
| | - Zhilan Liu
- Digestive Department of Qinghai Provincial People's Hospital, Xining, 810007, China
| | - Xiaohong Xue
- Digestive Department of Qinghai Provincial People's Hospital, Xining, 810007, China
| | - Yaping Wang
- Wuxi Huishan District People's Hospital, Wuxi, 214187, Jiangsu, China.
| | - Yingcai Ma
- Digestive Department of Qinghai Provincial People's Hospital, Xining, 810007, China
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Lai L, Wang G, Xu L, Fu Y. CEBPB promotes gastrointestinal motility dysfunction after severe acute pancreatitis via the MALAT1/CIRBP/ERK axis. Mol Immunol 2023; 156:1-9. [PMID: 36842228 DOI: 10.1016/j.molimm.2023.02.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 01/17/2023] [Accepted: 02/05/2023] [Indexed: 02/27/2023]
Abstract
Severe acute pancreatitis (SAP) is a kind of reversible inflammatory process of the exocrine pancreas with gastrointestinal motility dysfunction involved. Studies have highlighted the role of long noncoding RNA metastasis associated lung adenocarcinoma transcript 1 (MALAT1) in AP. However, the mechanism underlying its role in the gastrointestinal motility dysfunction remains undefined. Hence, we explored the regulatory role of MALAT1 in gastrointestinal motility dysfunction following SAP. Then, the expression of CCAAT/enhancer-binding protein beta (CEBPB), MALAT1 and cold-inducible RNA binding protein (CIRBP) was detected in plasma of SAP patients and pancreatic and intestinal tissues of SAP mouse models with their correlation analyzed also. Additionally, the effect of MALAT1 on the pancreatic and intestinal injury, expression of inflammatory factors and the ERK pathway-related genes as well as gastrointestinal motility dysfunction was assessed using ectopic expression and depletion experiments. CEBPB, MALAT1 and CIRBP were highly expressed in plasma of SAP patients and pancreatic and intestinal tissues of SAP mice. Further analysis showed that knockdown of MALAT1 could alleviate pancreatic and intestinal injury, reduce inflammation, and prevent gastrointestinal motility dysfunction in SAP mice. The transcription factor CEBPB could bind to the promoter region of MALAT1, thus activating the transcription of MALAT1. MALAT1 interacted with CIRBP and inhibited the degradation of CIRBP, leading to activated extracellular signal-regulated kinase (ERK) pathway and the resultant gastrointestinal motility dysfunction. In conclusion, CEBPB exhibits a promoting activity towards gastrointestinal motility dysfunction in SAP by pumping up MALAT1 expression and activating the CIRBP-dependent ERK pathway.
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Affiliation(s)
- Lixia Lai
- Department of Gastroenterology, Pingxiang People's Hospital, Pingxiang 337055, PR China.
| | - Guiliang Wang
- Department of Gastroenterology, Pingxiang People's Hospital, Pingxiang 337055, PR China
| | - Linfang Xu
- Department of Gastroenterology, Pingxiang People's Hospital, Pingxiang 337055, PR China
| | - Yunhui Fu
- Department of Gastroenterology, Pingxiang People's Hospital, Pingxiang 337055, PR China
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Tang DS, Cao F, Yan CS, Cui JT, Guo XY, Cheng L, Li L, Li YL, Ma JM, Fang K, Gao L, Ren NS, Sun B, Wang G, Ji L. Acinar Cell-Derived Extracellular Vesicle MiRNA-183-5p Aggravates Acute Pancreatitis by Promoting M1 Macrophage Polarization Through Downregulation of FoxO1. Front Immunol 2022; 13:869207. [PMID: 35911777 PMCID: PMC9326086 DOI: 10.3389/fimmu.2022.869207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Accepted: 06/20/2022] [Indexed: 11/13/2022] Open
Abstract
Acute pancreatitis (AP) is a common cause of a clinically acute abdomen. Crosstalk between acinar cells and leukocytes (especially macrophages) plays an important role in the development of AP. However, the mechanism mediating the interaction between acinar cells and macrophages is still unclear. This study was performed to explore the role of acinar cell extracellular vesicles (EVs) in the crosstalk between acinar cells and macrophages involved in the pathogenesis of AP. EVs derived from caerulein-treated acinar cells induced macrophage infiltration and aggravated pancreatitis in an AP rat model. Further research showed that acinar cell-derived EV miR-183-5p led to M1 macrophage polarization by downregulating forkhead box protein O1 (FoxO1), and a dual-luciferase reporter assay confirmed that FoxO1 was directly inhibited by miR-183-5p. In addition, acinar cell-derived EV miR-183-5p reduced macrophage phagocytosis. Acinar cell-derived EV miR-183-5p promoted the pancreatic infiltration of M1 macrophages and increased local and systemic damage in vivo. Subsequently, miR-183-5p overexpression in macrophages induced acinar cell damage and trypsin activation, thus further exacerbating the disease. In clinical samples, elevated miR-183-5p levels were detected in serum EVs and positively correlated with the severity of AP. EV miR-183-5p might play an important role in the development of AP by facilitating M1 macrophage polarization, providing a new insight into the diagnosis and targeted management of pancreatitis. Graphical abstract of the present study. In our caerulein-induced AP model, miR-183-5p was upregulated in injured acinar cells and transported by EVs to macrophages. miR-183-5p could induce M1 macrophage polarization through downregulation of FoxO1 and the release of inflammatory cytokines, which could aggravate AP-related injuries. Therefore, a vicious cycle might exist between injured ACs and M1 macrophage polarization, which is fulfilled by EV-transported miR-183-5p, leading to sustainable and progressive AP-related injuries.
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Affiliation(s)
- De-sheng Tang
- Department of Pancreatic and Biliary Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, China
- Key Laboratory of Hepatosplenic Surgery, Ministry of Education, Harbin, China
| | - Feng Cao
- Department of General Surgery, Xuanwu Hospital, Capital Medical University, Beijing, China
- Clinical Center for Acute Pancreatitis, Capital Medical University, Beijing, China
| | - Chang-sheng Yan
- Department of Pancreatic and Biliary Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, China
- Key Laboratory of Hepatosplenic Surgery, Ministry of Education, Harbin, China
| | - Ji-tao Cui
- Department of Pancreatic and Biliary Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, China
- Key Laboratory of Hepatosplenic Surgery, Ministry of Education, Harbin, China
| | - Xiao-yu Guo
- Department of Pancreatic and Biliary Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, China
- Key Laboratory of Hepatosplenic Surgery, Ministry of Education, Harbin, China
| | - Long Cheng
- Department of Pancreatic and Biliary Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, China
- Key Laboratory of Hepatosplenic Surgery, Ministry of Education, Harbin, China
| | - Le Li
- Department of Pancreatic and Biliary Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, China
- Key Laboratory of Hepatosplenic Surgery, Ministry of Education, Harbin, China
| | - Yi-long Li
- Department of Pancreatic and Biliary Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, China
- Key Laboratory of Hepatosplenic Surgery, Ministry of Education, Harbin, China
| | - Jia-min Ma
- Department of Pancreatic and Biliary Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, China
- Key Laboratory of Hepatosplenic Surgery, Ministry of Education, Harbin, China
| | - Kun Fang
- Department of Pancreatic and Biliary Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, China
- Key Laboratory of Hepatosplenic Surgery, Ministry of Education, Harbin, China
| | - Lei Gao
- Department of Pancreatic and Biliary Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, China
- Key Laboratory of Hepatosplenic Surgery, Ministry of Education, Harbin, China
| | - Nian-sheng Ren
- Department of Pancreatic and Biliary Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, China
- Key Laboratory of Hepatosplenic Surgery, Ministry of Education, Harbin, China
| | - Bei Sun
- Department of Pancreatic and Biliary Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, China
- Key Laboratory of Hepatosplenic Surgery, Ministry of Education, Harbin, China
| | - Gang Wang
- Department of Pancreatic and Biliary Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, China
- Key Laboratory of Hepatosplenic Surgery, Ministry of Education, Harbin, China
- *Correspondence: Gang Wang, ; Liang Ji,
| | - Liang Ji
- Key Laboratory of Hepatosplenic Surgery, Ministry of Education, Harbin, China
- Department of Breast Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, China
- *Correspondence: Gang Wang, ; Liang Ji,
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ATG7-enhanced impaired autophagy exacerbates acute pancreatitis by promoting regulated necrosis via the miR-30b-5p/CAMKII pathway. Cell Death Dis 2022; 13:211. [PMID: 35256590 PMCID: PMC8901675 DOI: 10.1038/s41419-022-04657-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 02/03/2022] [Accepted: 02/16/2022] [Indexed: 01/18/2023]
Abstract
The present study was performed to explore whether and how impaired autophagy could modulate calcium/calmodulin-dependent protein kinase II (CAMKII)-regulated necrosis in the pathogenesis of acute pancreatitis (AP). Wistar rats and AR42J cells were used for AP modeling. When indicated, genetic regulation of CAMKII or ATG7 was performed prior to AP induction. AP-related necrotic injury was positively regulated by the incubation level of CAMKII. ATG7 positively modulated the level of CAMKII and necrosis following AP induction, indicating that there might be a connection between impaired autophagy and CAMKII-regulated necrosis in the pathogenesis of AP. microRNA (miR)-30b-5p was predicted and then verified as the upstream regulator of CAMKII mRNA in our setting of AP. Given that the level of miR-30b-5p was negatively correlated with the incubation levels of ATG7 after AP induction, a rescue experiment was performed and indicated that the miR-30b-5p mimic compromised ATG7 overexpression-induced upregulation of CAMKII-regulated necrosis after AP induction. In conclusion, our results indicate that ATG7-enhanced impaired autophagy exacerbates AP by promoting regulated necrosis via the miR-30b-5p/CAMKII pathway.
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