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Feng MC, Luo F, Huang LJ, Li K, Chen ZM, Li H, Yao C, Qin BJ, Chen GZ. Rheum palmatum L. and Salvia miltiorrhiza Bge. Alleviates Acute Pancreatitis by Regulating Th17 Cell Differentiation: An Integrated Network Pharmacology Analysis, Molecular Dynamics Simulation and Experimental Validation. Chin J Integr Med 2024; 30:408-420. [PMID: 37861962 DOI: 10.1007/s11655-023-3559-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/17/2023] [Indexed: 10/21/2023]
Abstract
OBJECTIVE To identify the core targets of Rheum palmatum L. and Salvia miltiorrhiza Bge., (Dahuang-Danshen, DH-DS) and the mechanism underlying its therapeutic efficacy in acute pancreatitis (AP) using a network pharmacology approach and validate the findings in animal experiments. METHODS Network pharmacology analysis was used to elucidate the mechanisms underlying the therapeutic effects of DH-DS in AP. The reliability of the results was verified by molecular docking simulation and molecular dynamics simulation. Finally, the results of network pharmacology enrichment analysis were verified by immunohistochemistry, Western blot analysis and real-time quantitative PCR, respectively. RESULTS Sixty-seven common targets of DH-DS in AP were identified and mitogen-activated protein kinase 3 (MAPK3), Janus kinase 2 (JAK2), signal transducer and activator of transcription 3 (STAT3), protein c-Fos (FOS) were identified as core targets in the protein interaction (PPI) network analysis. Gene ontology analysis showed that cellular response to organic substance was the main functions of DH-DS in AP, and Kyoto Encyclopedia of Genes and Genomes analysis showed that the main pathway included Th17 cell differentiation. Molecular docking simulation confirmed that DH-DS binds with strong affinity to MAPK3, STAT3 and FOS. Molecular dynamics simulation revealed that FOS-isotanshinone II and STAT3-dan-shexinkum d had good binding capacity. Animal experiments indicated that compared with the AP model group, DH-DS treatment effectively alleviated AP by inhibiting the expression of interleukin-1β, interleukin-6 and tumor necrosis factor-α, and blocking the activation of Th17 cell differentiation (P<0.01). CONCLUSION DH-DS could inhibit the expression of inflammatory factors and protect pancreatic tissues, which would be functioned by regulating Th17 cell differentiation-related mRNA and protein expressions.
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Affiliation(s)
- Min-Chao Feng
- The First Clinical Medical College, Guangxi University of Traditional Chinese Medicine, Nanning, 530000, China
- Guangxi Key Laboratory of Molecular Biology of Traditional Chinese Medicine and Preventive Medicine, Nanning, 530000, China
| | - Fang Luo
- The First Clinical Medical College, Guangxi University of Traditional Chinese Medicine, Nanning, 530000, China
- Guangxi Key Laboratory of Molecular Biology of Traditional Chinese Medicine and Preventive Medicine, Nanning, 530000, China
| | - Liang-Jiang Huang
- The First Clinical Medical College, Guangxi University of Traditional Chinese Medicine, Nanning, 530000, China
- Guangxi Key Laboratory of Molecular Biology of Traditional Chinese Medicine and Preventive Medicine, Nanning, 530000, China
| | - Kai Li
- The First Clinical Medical College, Guangxi University of Traditional Chinese Medicine, Nanning, 530000, China
- Guangxi Key Laboratory of Molecular Biology of Traditional Chinese Medicine and Preventive Medicine, Nanning, 530000, China
| | - Zu-Min Chen
- The First Clinical Medical College, Guangxi University of Traditional Chinese Medicine, Nanning, 530000, China
- Guangxi Key Laboratory of Molecular Biology of Traditional Chinese Medicine and Preventive Medicine, Nanning, 530000, China
| | - Hui Li
- The First Clinical Medical College, Guangxi University of Traditional Chinese Medicine, Nanning, 530000, China
- Guangxi Key Laboratory of Molecular Biology of Traditional Chinese Medicine and Preventive Medicine, Nanning, 530000, China
| | - Chun Yao
- Graduate School, Guangxi University of Traditional Chinese Medicine, Nanning, 530000, China
| | - Bai-Jun Qin
- The First Clinical Medical College, Guangxi University of Traditional Chinese Medicine, Nanning, 530000, China
- Guangxi Key Laboratory of Molecular Biology of Traditional Chinese Medicine and Preventive Medicine, Nanning, 530000, China
| | - Guo-Zhong Chen
- Department of Gastroenterology, the First Affiliated Hospital of Guangxi University of Traditional Chinese Medicine, Nanning, 530023, China.
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Expression of Concern: Impairment of FOS mRNA Stabilization Following Translation Arrest in Granulocytes from Myelodysplastic Syndrome Patients. PLoS One 2023; 18:e0278805. [PMID: 36630355 PMCID: PMC9833561 DOI: 10.1371/journal.pone.0278805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
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Leptin in the Commissural Nucleus of the Tractus Solitarius (cNTS) and Anoxic Stimulus in the Carotid Body Chemoreceptors Increases cNTS Leptin Signaling Receptor and Brain Glucose Retention in Rats. MEDICINA (KAUNAS, LITHUANIA) 2022; 58:medicina58040550. [PMID: 35454388 PMCID: PMC9025962 DOI: 10.3390/medicina58040550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 04/10/2022] [Accepted: 04/12/2022] [Indexed: 11/29/2022]
Abstract
Background and Objectives: The commissural nucleus of the tractus solitarius (cNTS) not only responds to glucose levels directly, but also receives afferent signals from the liver, and from the carotid chemoreceptors (CChR). In addition, leptin, through its receptors in the cNTS, regulates food intake, body weight, blood glucose levels, and brain glucose retention (BGR). These leptin effects on cNTS are thought to be mediated through the sympathetic–adrenal system. How these different sources of information converging in the NTS regulate blood glucose levels and brain glucose retention remains largely unknown. The goal of the present study was to determine whether the local administration of leptin in cNTS alone, or after local anoxic stimulation using sodium cyanide (NaCN) in the carotid sinus, modifies the expression of leptin Ob-Rb and of c-Fos mRNA. We also investigated how leptin, alone, or in combination with carotid sinus stimulation, affected brain glucose retention. Materials and Methods: The experiments were carried out in anesthetized male Wistar rats artificially ventilated to maintain homeostatic values for pO2, pCO2, and pH. We had four groups: (a) experimental 1, leptin infusion in cNTS and NaCN in the isolated carotid sinus (ICS; n = 10); (b) experimental 2, leptin infusion in cNTS and saline in the ICS (n = 10); (c) control 1, artificial cerebrospinal fluid (aCSF) in cNTS and NaCN in the ICS (n = 10); (d) control 2, aCSF in cNTS and saline in the ICS (n = 10). Results: Leptin in cNTS, preceded by NaCN in the ICS increased BGR and leptin Ob-Rb mRNA receptor expression, with no significant increases in c-Fos mRNA in the NTSc. Conclusions: Leptin in the cNTS enhances brain glucose retention induced by an anoxic stimulus in the carotid chemoreceptors, through an increase in Ob-Rb receptors, without persistent changes in neuronal activation.
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Wu M, Tong CWS, Yan W, To KKW, Cho WCS. The RNA Binding Protein HuR: A Promising Drug Target for Anticancer Therapy. Curr Cancer Drug Targets 2020; 19:382-399. [PMID: 30381077 DOI: 10.2174/1568009618666181031145953] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2018] [Revised: 08/24/2018] [Accepted: 10/18/2018] [Indexed: 02/07/2023]
Abstract
The stability of mRNA is one of the key factors governing the regulation of eukaryotic gene expression and function. Human antigen R (HuR) is an RNA-binding protein that regulates the stability, translation, and nucleus-to-cytoplasm shuttling of its target mRNAs. While HuR is normally localized within the nucleus, it has been shown that HuR binds mRNAs in the nucleus and then escorts the mRNAs to the cytoplasm where HuR protects them from degradation. It contains several RNA recognition motifs, which specifically bind to adenylate and uridylate-rich regions within the 3'-untranslated region of the target mRNA to mediate its effect. Many of the HuR target mRNAs encode proteins important for cell growth, tumorigenesis, angiogenesis, tumor inflammation, invasion and metastasis. HuR overexpression is known to correlate well with high-grade malignancy and poor prognosis in many tumor types. Thus, HuR has emerged as an attractive drug target for cancer therapy. Novel small molecule HuR inhibitors have been identified by high throughput screening and new formulations for targeted delivery of HuR siRNA to tumor cells have been developed with promising anticancer activity. This review summarizes the significant role of HuR in cancer development, progression, and poor treatment response. We will discuss the potential and challenges of targeting HuR therapeutically.
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Affiliation(s)
- Mingxia Wu
- School of Pharmacy, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong
| | - Christy W S Tong
- School of Pharmacy, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong
| | - Wei Yan
- School of Pharmacy, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong
| | - Kenneth K W To
- School of Pharmacy, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong
| | - William C S Cho
- Department of Clinical Oncology, Queen Elizabeth Hospital, Hong Kong
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Cao M, Shikama Y, Kimura H, Noji H, Ikeda K, Ono T, Ogawa K, Takeishi Y, Kimura J. Mechanisms of Impaired Neutrophil Migration by MicroRNAs in Myelodysplastic Syndromes. THE JOURNAL OF IMMUNOLOGY 2017; 198:1887-1899. [PMID: 28130497 DOI: 10.4049/jimmunol.1600622] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2016] [Accepted: 12/30/2016] [Indexed: 12/14/2022]
Abstract
In myelodysplastic syndromes (MDS), functional defects of neutrophils result in high mortality because of infections; however, the molecular basis remains unclear. We recently found that miR-34a and miR-155 were significantly increased in MDS neutrophils. To clarify the effects of the aberrant microRNA expression on neutrophil functions, we introduced miR-34a, miR-155, or control microRNA into neutrophil-like differentiated HL60 cells. Ectopically introduced miR-34a and miR-155 significantly attenuated migration toward chemoattractants fMLF and IL-8, but enhanced degranulation. To clarify the mechanisms for inhibition of migration, we studied the effects of miR-34a and miR-155 on the migration-regulating Rho family members, Cdc42 and Rac1. The introduced miR-34a and miR-155 decreased the fMLF-induced active form of Cdc42 to 29.0 ± 15.9 and 39.7 ± 4.8% of that in the control cells, respectively, although Cdc42 protein levels were not altered. miR-34a decreased a Cdc42-specific guanine nucleotide exchange factor (GEF), dedicator of cytokinesis (DOCK) 8, whereas miR-155 reduced another Cdc42-specific GEF, FYVE, RhoGEF, and PH domain-containing (FGD) 4. The knockdown of DOCK8 and FGD4 by small interfering RNA suppressed Cdc42 activation and fMLF/IL-8-induced migration. miR-155, but not miR-34a, decreased Rac1 protein, and introduction of Rac1 small interfering RNA attenuated Rac1 activation and migration. Neutrophils from patients showed significant attenuation in migration compared with healthy cells, and protein levels of DOCK8, FGD4, and Rac1 were well correlated with migration toward fMLF (r = 0.642, 0.686, and 0.436, respectively) and IL-8 (r = 0.778, 0.659, and 0.606, respectively). Our results indicated that reduction of DOCK8, FGD4, and Rac1 contributes to impaired neutrophil migration in MDS.
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Affiliation(s)
- Meiwan Cao
- Department of Pharmacology, School of Medicine, Fukushima Medical University, Fukushima 960-1295, Japan
| | - Yayoi Shikama
- Department of Pharmacology, School of Medicine, Fukushima Medical University, Fukushima 960-1295, Japan; .,Center for Medical Education and Career Development, Fukushima Medical University, Fukushima 960-1295, Japan
| | - Hideo Kimura
- Department of Hematology, Kita-Fukushima Medical Center, Date 960-0502, Japan
| | - Hideyoshi Noji
- Department of Cardiology and Hematology, School of Medicine, Fukushima Medical University, Fukushima 960-1295, Japan.,Department of Medical Oncology, School of Medicine, Fukushima Medical University, Fukushima 960-1295, Japan; and
| | - Kazuhiko Ikeda
- Department of Cardiology and Hematology, School of Medicine, Fukushima Medical University, Fukushima 960-1295, Japan.,Department of Blood Transfusion and Transplantation Immunology, School of Medicine, Fukushima Medical University, Fukushima 960-1295, Japan
| | - Tomoyuki Ono
- Department of Pharmacology, School of Medicine, Fukushima Medical University, Fukushima 960-1295, Japan
| | - Kazuei Ogawa
- Department of Cardiology and Hematology, School of Medicine, Fukushima Medical University, Fukushima 960-1295, Japan
| | - Yasuchika Takeishi
- Department of Cardiology and Hematology, School of Medicine, Fukushima Medical University, Fukushima 960-1295, Japan
| | - Junko Kimura
- Department of Pharmacology, School of Medicine, Fukushima Medical University, Fukushima 960-1295, Japan
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Shikama Y, Cao M, Ono T, Feng X, Noji H, Kimura H, Ogawa K, Suzuki Y, Ikeda K, Takeishi Y, Kimura J. Reduction of c-Fos via Overexpression of miR-34a Results in Enhancement of TNF- Production by LPS in Neutrophils from Myelodysplastic Syndrome Patients. PLoS One 2016; 11:e0158527. [PMID: 27513856 PMCID: PMC4981319 DOI: 10.1371/journal.pone.0158527] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Accepted: 06/16/2016] [Indexed: 02/07/2023] Open
Abstract
Although increased TNF-α has been considered to cause ineffective hematopoiesis in myelodysplastic syndromes (MDS), the mechanisms of TNF-α elevation are not known. We recently found that c-Fos mRNA stabilization under translation-inhibiting stimuli was impaired in MDS-derived neutrophilic granulocytes. In the current study, we identified overexpression of c-Fos-targeting miR-34a and miR-155 as the cause of impairment. Expression levels of miR-34a but not miR-155 inversely correlated with ratios of c-Fos-positive cells in MDS-derived CD16+ neutrophils (r = -0.618, P<0.05), which were analyzed by flow cytometry. Among the seventeen patients, c-Fos was detectable in less than 60% of CD16+ cells in eight patients (Group A), while five (Group B) expressed c-Fos in more than 80% of CD16+ cells, which was consistent with the controls (88.6 ± 7.8%). Group A-derived granulocytes secreted more TNF-α in response to 1 μM LPS for 3 hours (735.4 ± 237.5 pg/mL) than Group B (143.5 ± 65.7 pg/mL, P<0.05) and healthy controls (150.8 ± 91.5 pg/mL, P<0.05). Knockdown of c-Fos in neutrophil-like differentiated HL60 increased the binding of NF-κB p65 to the promoter region of TNF-α DNA. Thus, c-Fos reduction via overexpression of miR-34a contributes to TNF-α overproduction under inflammatory stimuli in MDS.
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Affiliation(s)
- Yayoi Shikama
- Department of Pharmacology, Fukushima Medical University, Fukushima, Japan
- * E-mail:
| | - Meiwan Cao
- Department of Pharmacology, Fukushima Medical University, Fukushima, Japan
| | - Tomoyuki Ono
- Department of Pharmacology, Fukushima Medical University, Fukushima, Japan
| | - Xiaomin Feng
- Department of Pharmacology, Fukushima Medical University, Fukushima, Japan
| | - Hideyoshi Noji
- Department of Cardiology and Hematology, Fukushima Medical University, Fukushima, Japan
| | - Hideo Kimura
- Department of Hematology, Kita Fukushima Medical Center, Date, Japan
| | - Kazuei Ogawa
- Department of Cardiology and Hematology, Fukushima Medical University, Fukushima, Japan
| | - Yuko Suzuki
- Department of Blood Transfusion and Transplantation Immunology, Fukushima Medical University, Fukushima, Japan
| | - Kazuhiko Ikeda
- Department of Cardiology and Hematology, Fukushima Medical University, Fukushima, Japan
- Department of Blood Transfusion and Transplantation Immunology, Fukushima Medical University, Fukushima, Japan
| | - Yasuchika Takeishi
- Department of Cardiology and Hematology, Fukushima Medical University, Fukushima, Japan
| | - Junko Kimura
- Department of Pharmacology, Fukushima Medical University, Fukushima, Japan
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