1
|
Gao B, Zhang X, Xue D, Zhang W. Effects of Egr1 on pancreatic acinar intracellular trypsinogen activation and the associated ceRNA network. Mol Med Rep 2020; 22:2496-2506. [PMID: 32705196 PMCID: PMC7411386 DOI: 10.3892/mmr.2020.11316] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Accepted: 06/08/2020] [Indexed: 12/13/2022] Open
Abstract
Acute pancreatitis (AP) is a common digestive disorder with high morbidity and mortality. The present study aimed to investigate the expression of early growth response protein 1 (Egr1), and the effect of competing endogenous (ce)RNA network on trypsinogen activation. Pancreatic acinar intracellular trypsinogen activation (PAITA) is an important event in the early stage of AP; however, the underlying mechanisms remain unclear. The present study used taurolithocholic acid 3-sulfate (TLC-S)-treated AR42J cells (pancreatic cell line) to establish a PAITA model. A gene microarray and bioinformatics analysis was performed to identify the potential key targets in PAITA. The results demonstrated that Egr1, an important transcription factor, was significantly overexpressed in PAITA. In Egr1 small interfering (si)RNA-transfected cells, Egr1 expression was decreased and trypsinogen activation was significantly decreased compared with negative control siRNA-transfected cells, indicating that in TLC-S-induced PAITA, overexpression of Egr1 enhanced trypsinogen activation. A ceRNA network [mRNA-microRNA (miRNA/miR)-long non-coding (lnc)RNA] generated using the PAITA model revealed that the effects of Egr1 on PAITA may be regulated by multiple ceRNA pairs, and the lncRNAs (including NONRATT022624 and NONRATT031002) and miRNAs [including Rattus norvegicus (rno)-miR-214-3p and rno-miR-764-5p] included in the ceRNA pairs may serve roles in PAITA by regulating the expression of Egr1. The results of the present study may provide novel targets for researching the underlying mechanisms of, and developing treatments for AP.
Collapse
Affiliation(s)
- Bo Gao
- Department of General Surgery, Peking University People's Hospital, Beijing 100044, P.R. China
| | - Xueming Zhang
- Department of General Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 100086, P.R. China
| | - Dongbo Xue
- Department of General Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 100086, P.R. China
| | - Weihui Zhang
- Department of General Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 100086, P.R. China
| |
Collapse
|
2
|
Li S, Li Y, Deng B, Yan J, Wang Y. Identification of the Differentially Expressed Genes Involved in the Synergistic Neurotoxicity of an HIV Protease Inhibitor and Methamphetamine. Curr HIV Res 2020; 17:290-303. [PMID: 31550215 DOI: 10.2174/1570162x17666190924200354] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Revised: 08/23/2019] [Accepted: 09/05/2019] [Indexed: 02/02/2023]
Abstract
BACKGROUND The abuse of psychostimulants such as methamphetamine (METH) is common in human immunodeficiency virus (HIV)-infected individuals. Acquired immunodeficiency syndrome (AIDS) patients taking METH and antiretroviral drugs could suffer severe neurologic damage and cognitive impairment. OBJECTIVE To reveal the underlying neuropathologic mechanisms of an HIV protease inhibitor (PI) combined with METH, growth-inhibition tests of dopaminergic cells and RNA sequencing were performed. METHODS A combination of METH and PI caused more growth inhibition of dopaminergic cells than METH alone or a PI alone. Furthermore, we identified differentially expressed gene (DEG) patterns in the METH vs. untreated cells (1161 genes), PI vs. untreated cells (16 genes), METH-PI vs. PI (3959 genes), and METH-PI vs. METH groups (14 genes). RESULTS The DEGs in the METH-PI co-treatment group were verified in the brains of a mouse model using quantitative polymerase chain reaction and were involved mostly in the regulatory functions of cell proliferation and inflammation. CONCLUSION Such identification of key regulatory genes could facilitate the study of their neuroprotective potential in the users of METH and PIs.
Collapse
Affiliation(s)
- Sangsang Li
- Department of Forensic Science, School of Basic Medical Science, Xiangya School of Medicine, Central South University, Changsha, Hunan, China.,Department of Immunology, School of Basic Medical Science, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Yanfei Li
- Department of Forensic Science, School of Basic Medical Science, Xiangya School of Medicine, Central South University, Changsha, Hunan, China.,Department of Immunology, School of Basic Medical Science, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Bingpeng Deng
- Department of Forensic Science, School of Basic Medical Science, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Jie Yan
- Department of Forensic Science, School of Basic Medical Science, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Yong Wang
- Department of Forensic Science, School of Basic Medical Science, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| |
Collapse
|
3
|
Silva-Vaz P, Abrantes AM, Castelo-Branco M, Gouveia A, Botelho MF, Tralhão JG. Multifactorial Scores and Biomarkers of Prognosis of Acute Pancreatitis: Applications to Research and Practice. Int J Mol Sci 2020; 21:ijms21010338. [PMID: 31947993 PMCID: PMC6982212 DOI: 10.3390/ijms21010338] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 12/30/2019] [Accepted: 01/02/2020] [Indexed: 02/07/2023] Open
Abstract
Acute pancreatitis (AP) is a severe inflammation of the pancreas presented with sudden onset and severe abdominal pain with a high morbidity and mortality rate, if accompanied by severe local and systemic complications. Numerous studies have been published about the pathogenesis of AP; however, the precise mechanism behind this pathology remains unclear. Extensive research conducted over the last decades has demonstrated that the first 24 h after symptom onset are critical for the identification of patients who are at risk of developing complications or death. The identification of these subgroups of patients is crucial in order to start an aggressive approach to prevent mortality. In this sense and to avoid unnecessary overtreatment, thereby reducing the financial implications, the proper identification of mild disease is also important and necessary. A large number of multifactorial scoring systems and biochemical markers are described to predict the severity. Despite recent progress in understanding the pathophysiology of AP, more research is needed to enable a faster and more accurate prediction of severe AP. This review provides an overview of the available multifactorial scoring systems and biochemical markers for predicting severe AP with a special focus on their advantages and limitations.
Collapse
Affiliation(s)
- Pedro Silva-Vaz
- Health Sciences Research Centre, University of Beira Interior (CICS-UBI), 6200-506 Covilhã, Portugal;
- General Surgery Department, Hospital Local de Saúde de Castelo Branco, 6000-085 Castelo Branco, Portugal;
- Faculty of Health Sciences, University of Beira Interior, 6200-506 Covilhã, Portugal
- Correspondence: ; Tel.: +351-966-498-337
| | - Ana Margarida Abrantes
- Coimbra Institute for Clinical and Biomedical Research (iCBR) area of Environment Genetics and Oncobiology (CIMAGO), Faculty of Medicine, University of Coimbra, 3000-548 Coimbra, Portugal; (A.M.A.); (M.F.B.); (J.G.T.)
- Faculty of Medicine, University of Coimbra, 3000-548 Coimbra, Portugal
- Biophysics and Biomathematics Institute, IBILI-Faculty of Medicine of University of Coimbra, 3000-348 Coimbra, Portugal
| | - Miguel Castelo-Branco
- Health Sciences Research Centre, University of Beira Interior (CICS-UBI), 6200-506 Covilhã, Portugal;
- Faculty of Health Sciences, University of Beira Interior, 6200-506 Covilhã, Portugal
| | - António Gouveia
- General Surgery Department, Hospital Local de Saúde de Castelo Branco, 6000-085 Castelo Branco, Portugal;
- Faculty of Health Sciences, University of Beira Interior, 6200-506 Covilhã, Portugal
| | - Maria Filomena Botelho
- Coimbra Institute for Clinical and Biomedical Research (iCBR) area of Environment Genetics and Oncobiology (CIMAGO), Faculty of Medicine, University of Coimbra, 3000-548 Coimbra, Portugal; (A.M.A.); (M.F.B.); (J.G.T.)
- Faculty of Medicine, University of Coimbra, 3000-548 Coimbra, Portugal
- Biophysics and Biomathematics Institute, IBILI-Faculty of Medicine of University of Coimbra, 3000-348 Coimbra, Portugal
| | - José Guilherme Tralhão
- Coimbra Institute for Clinical and Biomedical Research (iCBR) area of Environment Genetics and Oncobiology (CIMAGO), Faculty of Medicine, University of Coimbra, 3000-548 Coimbra, Portugal; (A.M.A.); (M.F.B.); (J.G.T.)
- Faculty of Medicine, University of Coimbra, 3000-548 Coimbra, Portugal
- Biophysics and Biomathematics Institute, IBILI-Faculty of Medicine of University of Coimbra, 3000-348 Coimbra, Portugal
- Surgery Department, Centro Hospitalar e Universitário de Coimbra (CHUC), University Hospital, Faculty of Medicine, 3000-075 Coimbra, Portugal
| |
Collapse
|
4
|
Li Z, Xu W, Ren X, Xu J, Chen J. Puerarin promotes DUSP1 expression by regulating miR‑133a‑3p in breast cancer. Mol Med Rep 2018; 19:205-212. [PMID: 30483784 PMCID: PMC6297792 DOI: 10.3892/mmr.2018.9682] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Accepted: 10/23/2018] [Indexed: 12/14/2022] Open
Abstract
Previous studies demonstrated that puerarin represents a potential therapeutic drug for breast cancer treatment, due to its ability to inhibit the migration of MCF-7 and MDA-MB-231 cell lines. In order to investigate the mechanism of puerarin in breast cancer cells, the aim of the present study was to examine whether puerarin regulated the dual specificity phosphatase 1 (DUSP1) expression level by promoting the microRNA-133a-3p (miR-133a-3p) expression level in breast cancer. Cell viability and apoptosis were assessed in HCC38 cells by Cell Counting Kit-8 assays and a flow cytometry assay, respectively. In total, four treatment groups were considered: Puerarin treatment, miR-133a-3p mimics transfection, puerarin + miR-133a-3p mimics and negative control. miR-133a-3p expression and DUSP1 mRNA expression levels were analyzed by reverse transcription-quantitative polymerase chain reaction, and western blotting was used to detect the protein expression level. Furthermore, a luciferase reporter gene assay was used to test whether DUSP1 mRNA was a direct target of miR-133a-3p. The present results suggested that treatment with puerarin or miR-133a-3p mimics transfection affected the miR-133a-3p expression level and the activity of the DUSP1/p38 pathway, leading to inhibition of HCC38 cell viability and an increase in apoptosis. miR-133a-3p overexpression enhanced the drug action of peurarin. In conclusion, puerarin may increase DUSP1 expression by promoting the miR-133a-3p expression level in HCC38 breast cancer cells. Therefore, miR-133a-3p may represent a novel molecular marker for diagnosis and treatment of breast cancer, and puerarin may represent a promising clinical drug for treatment of patients with breast cancer.
Collapse
Affiliation(s)
- Zhifeng Li
- Department of Breast Surgery, Nantong Maternity and Child Health Care Hospital Affiliated to Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Weiwei Xu
- Department of Oncology, Nantong Tumour Hospital Affiliated to Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Xiaoyan Ren
- Department of Pathology, Nantong Maternity and Child Health Care Hospital Affiliated to Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Jinhua Xu
- Department of Traditional Chinese Medicine, Nantong Maternity and Child Health Care Hospital Affiliated to Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Jianxin Chen
- Department of Breast Surgery, Nantong Maternity and Child Health Care Hospital Affiliated to Nantong University, Nantong, Jiangsu 226001, P.R. China
| |
Collapse
|