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Park SH, Park SH. Personalized medicine in inflammatory bowel disease: Perspectives on Asia. J Gastroenterol Hepatol 2022; 37:1434-1445. [PMID: 35726657 DOI: 10.1111/jgh.15919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 06/10/2022] [Accepted: 06/18/2022] [Indexed: 12/09/2022]
Abstract
Inflammatory bowel diseases are chronic, relapsing inflammatory disorders of the gastrointestinal tract with variable disease courses and complications, which in some cases can result in significant morbidities and disabilities. Etiologies remain unclear due to complex interactions between genetic and environmental factors. Considering the heterogeneity of inflammatory bowel diseases, personalized approaches in diagnosing and managing affected patients would be beneficial in maximizing treatment efficacies and minimizing adverse events. Personalized medicine may also help to stratify patients with a high risk of progression and inflammatory bowel disease-related complications and identify sub-phenotypic mechanisms to facilitate drug discovery and the development of new treatments. In Asia, with a rapidly increasing incidence and prevalence of inflammatory bowel diseases, studies have shown that patients of Asian ethnicity differ from their Western counterparts in terms of genetic and clinical aspects of inflammatory bowel diseases. Therefore, personalized medicine may differ for patients of Asian ethnicity with inflammatory bowel diseases. We reviewed and summarized current evidence concerning personalized medicine for the diagnosis and management of patients with inflammatory bowel diseases and its possible role from an Asian perspective.
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Affiliation(s)
- Su Hyun Park
- Department of Gastroenterology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, South Korea
| | - Sang Hyoung Park
- Department of Gastroenterology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, South Korea
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Li Y, Wang Z, Wu X, Wang G, Gu G, Ren H, Hong Z, Ren J. Intestinal mucosa-derived DNA methylation signatures in the penetrating intestinal mucosal lesions of Crohn's disease. Sci Rep 2021; 11:9771. [PMID: 33963246 PMCID: PMC8105344 DOI: 10.1038/s41598-021-89087-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Accepted: 04/21/2021] [Indexed: 12/11/2022] Open
Abstract
The purpose of this study was to evaluate genome-wide DNA methylation changes in intestinal mucosa tissue of adult patients with Crohn's disease comprehensively. DNA methylation chip was used to analyze abnormal methylation sites among penetrating and non-penetrating intestinal mucosa tissue of Crohn's disease and normal intestinal mucosa tissue of healthy controls. Methylation abnormalities of different locus were verified by pyrosequencing and quantitative polymerase chain reaction. Differential DNA methylation sites were participated in the positive regulation of apoptosis and the positive regulation of IL-8 production and were enriched in signaling pathways related to inflammatory bowel disease and extracellular matrix receptor interaction signaling pathways. Correlation analysis showed that the methylation abnormalities of HLA-DRB1 (r = - 0.62, P < 0.001), MUC1 (r = - 0.45, P = 0.01), YPEL5 (r = - 0.55, P = 0.001) and CBLB (r = - 0.62, P < 0.001) were significantly negatively correlated with their relative expression levels. The degree of methylation abnormality of MUC1 was negatively correlated with the disease activity score of Crohn's disease (r = - 0.50, P = 0.01). Apoptosis, interleukin-8 production and abnormal extracellular matrix might be involved in the mechanism of penetrating intestinal mucosal lesions in Crohn's disease. The degree of abnormal methylation of MUC1 was negatively correlated with the disease activity of Crohn's disease.
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Affiliation(s)
- Yuan Li
- Research Institute of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, 210002, China
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
| | - Zhiming Wang
- Research Institute of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, 210002, China
| | - Xiuwen Wu
- Research Institute of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, 210002, China
| | - Gefei Wang
- Research Institute of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, 210002, China
| | - Guosheng Gu
- Research Institute of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, 210002, China
| | - Huajian Ren
- Research Institute of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, 210002, China
| | - Zhiwu Hong
- Research Institute of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, 210002, China
| | - Jianan Ren
- Research Institute of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, 210002, China.
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Okazaki F, Wakiguchi H, Korenaga Y, Nakamura T, Yasudo H, Uchi S, Yanai R, Asano N, Hoshii Y, Tanabe T, Izawa K, Honda Y, Nishikomori R, Uchida K, Eishi Y, Ohga S, Hasegawa S. A novel mutation in early-onset sarcoidosis/Blau syndrome: an association with Propionibacterium acnes. Pediatr Rheumatol Online J 2021; 19:18. [PMID: 33602264 PMCID: PMC7890802 DOI: 10.1186/s12969-021-00505-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Accepted: 02/08/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Early-onset sarcoidosis (EOS) and Blau syndrome (BS) are systemic inflammatory granulomatous diseases without visible pulmonary involvement, and are distinguishable from their sporadic and familial forms. The diseases are characterized by a triad of skin rashes, symmetrical polyarthritis, and recurrent uveitis. The most common morbidity is ocular involvement, which is usually refractory to conventional treatment. A gain-of-function mutation in the nucleotide-binding oligomerization domain-containing protein 2 (NOD2) gene has been demonstrated in this disease; however, little is known about the relationship between the activation of NOD2 and the pathophysiology of EOS/BS. Here we describe EOS/BS with a novel mutation in the NOD2 gene, as well as detection of Propionibacterium acnes (P. acnes) in the granulomatous inflammation. CASE PRESENTATION An 8-year-old Japanese girl presented with refractory bilateral granulomatous panuveitis. Although no joint involvement was evident, she exhibited skin lesions on her legs; a skin biopsy revealed granulomatous dermatitis, and P. acnes was detected within the sarcoid granulomas by immunohistochemistry with P. acnes-specific monoclonal (PAB) antibody. Genetic analyses revealed that the patient had a NOD2 heterozygous D512V mutation that was novel and not present in either of her parents. The mutant NOD2 showed a similar activation pattern to EOS/BS, thus confirming her diagnosis. After starting oral prednisolone treatment, she experienced an anterior vitreous opacity relapse despite gradual prednisolone tapering; oral methotrexate was subsequently administered, and the patient responded positively. CONCLUSIONS We presented a case of EOS/BS with a novel D512V mutation in the NOD2 gene. In refractory granulomatous panuveitis cases without any joint involvement, EOS/BS should be considered as a differential diagnosis; genetic analyses would lead to a definite diagnosis. Moreover, this is the first report of P. acnes demonstrated in granulomas of EOS/BS. Since intracellular P. acnes activates nuclear factor-kappa B in a NOD2-dependent manner, we hypothesized that the mechanism of granuloma formation in EOS/BS may be the result of NOD2 activity in the presence of the ligand muramyl dipeptide, which is a component of P. acnes. These results indicate that recognition of P. acnes through mutant NOD2 is the etiology in this patient with EOS/BS.
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Affiliation(s)
- Fumiko Okazaki
- grid.268397.10000 0001 0660 7960Department of Pediatrics, Yamaguchi University Graduate School of Medicine, 1-1-1 Minamikogushi, 755-8505 Ube, Yamaguchi Japan
| | - Hiroyuki Wakiguchi
- Department of Pediatrics, Yamaguchi University Graduate School of Medicine, 1-1-1 Minamikogushi, 755-8505, Ube, Yamaguchi, Japan.
| | - Yuno Korenaga
- grid.268397.10000 0001 0660 7960Department of Pediatrics, Yamaguchi University Graduate School of Medicine, 1-1-1 Minamikogushi, 755-8505 Ube, Yamaguchi Japan
| | - Tamaki Nakamura
- grid.268397.10000 0001 0660 7960Department of Pediatrics, Yamaguchi University Graduate School of Medicine, 1-1-1 Minamikogushi, 755-8505 Ube, Yamaguchi Japan
| | - Hiroki Yasudo
- grid.268397.10000 0001 0660 7960Department of Pediatrics, Yamaguchi University Graduate School of Medicine, 1-1-1 Minamikogushi, 755-8505 Ube, Yamaguchi Japan
| | - Shohei Uchi
- grid.268397.10000 0001 0660 7960Department of Ophthalmology, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Ryoji Yanai
- grid.268397.10000 0001 0660 7960Department of Ophthalmology, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Nobuyuki Asano
- grid.268397.10000 0001 0660 7960Department of Dermatology, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Yoshinobu Hoshii
- grid.268397.10000 0001 0660 7960Department of Diagnostic Pathology, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Tsuyoshi Tanabe
- grid.268397.10000 0001 0660 7960Department of Public Health and Preventive Medicine, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Kazushi Izawa
- grid.258799.80000 0004 0372 2033Department of Pediatrics, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Yoshitaka Honda
- grid.258799.80000 0004 0372 2033Department of Pediatrics, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Ryuta Nishikomori
- grid.258799.80000 0004 0372 2033Department of Pediatrics, Kyoto University Graduate School of Medicine, Kyoto, Japan ,grid.410781.b0000 0001 0706 0776Department of Pediatrics and Child Health, Kurume University School of Medicine, Kurume, Japan
| | - Keisuke Uchida
- grid.265073.50000 0001 1014 9130Department of Human Pathology, Tokyo Medical and Dental University Graduate School, Tokyo, Japan
| | - Yoshinobu Eishi
- grid.265073.50000 0001 1014 9130Department of Human Pathology, Tokyo Medical and Dental University Graduate School, Tokyo, Japan
| | - Shouichi Ohga
- grid.177174.30000 0001 2242 4849Department of Pediatrics, Graduate School of Medical Science, Kyushu University, Fukuoka, Japan
| | - Shunji Hasegawa
- grid.268397.10000 0001 0660 7960Department of Pediatrics, Yamaguchi University Graduate School of Medicine, 1-1-1 Minamikogushi, 755-8505 Ube, Yamaguchi Japan
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Ma X, Zhang W, Xu C, Zhang S, Zhao J, Pan Q, Wang Z. Nucleotide-binding oligomerization domain protein 1 enhances oxygen-glucose deprivation and reperfusion injury in cortical neurons via activation of endoplasmic reticulum stress-mediated autophagy. Exp Mol Pathol 2020; 117:104525. [PMID: 32888957 DOI: 10.1016/j.yexmp.2020.104525] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 07/27/2020] [Accepted: 08/31/2020] [Indexed: 12/19/2022]
Abstract
Cerebral ischemia-reperfusion (CIR) can regulate multiple transcription factors to enhance or attenuate injury. Nucleotide-binding oligomerization domain protein 1 (NOD1) has been reported to be involved in autophagy and endoplasmic reticulum (ER) stress. Moreover, autophagy and ER stress play important roles in CIR injury. Hence, the function of NOD1 in CIR injury was explored in this study. Primary rat cortical neurons were treated with oxygen-glucose deprivation and reperfusion (OGD/R) in vitro. NOD1 level was measured using immunofluorescence, real-time quantitative PCR and western blotting and its ubiquitination using co-immunoprecipitation. Results showed that OGD/R up-regulated NOD1 level but inhibited NOD1 ubiquitination. Then the effect of NOD1 on OGD/R-induced changes in cell viability, apoptosis, autophagy and ER stress was evaluated by methyl thiazolyl tetrazolium assay, lactate dehydrogenase release, Hoechst staining, detection of autophagy and ER stress-related proteins using western blotting and infection with GFP-LC3 lentiviruses. OGD/R decreased cell viability and increased cell apoptosis. NOD1 up-regulation promoted these changes, but NOD1 down-regulation reversed these changes. Moreover, OGD/R triggered autophagy and ER stress and NOD1 silencing reversed OGD/R-induced changes in autophagy and ER stress. To validate the role of autophagy in OGD/R injury, autophagy inducer rapamycin was used. Rapamycin promoted OGD/R-induced decrease in cell viability and counteracted NOD1 silencing-induced increase in cell viability. In addition, ER stress inducer tunicamycin was used to investigate the relationship between ER stress and autophagy. Tunicamycin promoted OGD/R-induced decrease in cell viability and reversed NOD1 silencing-induced increase in cell viability. Tunicamycin also enhanced OGD/R-induced autophagy and reversed NOD1 silencing-induced inhibition in autophagy. The results indicated that NOD1 promoted OGD/R injury in cortical neurons through activating ER stress-mediated autophagy. This study provides new insights for the target of CIR injury treatment.
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Affiliation(s)
- Xiande Ma
- Teaching and Experiment Center, Liaoning University of Traditional Chinese Medicine, Shenyang 110847, People's Republic of China; Key Laboratory of Ministry of Education for TCM Viscera-State Theory and Applications, Liaoning University of Traditional Chinese Medicine, Shenyang 110847, People's Republic of China
| | - Wei Zhang
- Third Department of Encephalopathy rehabilitation, The First Affiliated Hospital of Liaoning University of Traditional Chinese Medicine, Shenyang 110032, People's Republic of China
| | - Chang Xu
- Department of Basic Sciences of Integrated Chinese and Western Medicine, Liaoning University of Traditional Chinese Medicine, Shenyang 110847, People's Republic of China
| | - Shuangshuang Zhang
- Department of Basic Sciences of Integrated Chinese and Western Medicine, Liaoning University of Traditional Chinese Medicine, Shenyang 110847, People's Republic of China
| | - Jiaxiu Zhao
- Department of Basic Sciences of Integrated Chinese and Western Medicine, Liaoning University of Traditional Chinese Medicine, Shenyang 110847, People's Republic of China
| | - Qian Pan
- Department of Pathology, College of Integrated Chinese and Western Medicine, Liaoning University of Traditional Chinese Medicine, Shenyang 110847, People's Republic of China.
| | - Zhe Wang
- Department of Pathology, College of Integrated Chinese and Western Medicine, Liaoning University of Traditional Chinese Medicine, Shenyang 110847, People's Republic of China.
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Abstract
PURPOSE OF REVIEW To analyze the status of precision medicine in atopic diseases. RECENT FINDINGS Atopic diseases are increasingly recognized as heterogeneous in nature and they can be quite different in severity, response to therapy, triggers, genetic back ground, ancestral risk and type of inflammation. This significant variability in the landscape of atopic diseases is not reflected in the common treatment guidelines that follow 'one fits all' approach for their management. Such an approach is largely based on minimal 'phenotype' elements, such as severity of disease and response to therapy and does not reflect the information accumulate in the last 20 years about particular pathogenic pathways (endotypes) leading to disease (phenotypes) based on biomolecular analysis of the single individuals. Accumulating data have defined asthma allergic rhinitis, food allergy based on their endotypes and clinically relevant phenotypes. In general, atopic diseases can be largely classified as high or low Th2 inflammatory status, which may explain the severity and response to therapy. SUMMARY Precision medicine is aiming to use known endotype phenotype to guide specific individualized treatment. The work aimed in deep characterization of diseases to guide the disease management is crucial in light of the availability of ever more precise treatment able to target specific pathways.
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Nedzvetsky VS. THE PEPTIDOGLYCAN FRACTION ENRICHED WITH MURAMYL PENTAPEPTIDE FROM Lactobacillus bulgaricus INHIBITS GLIOBLASTOMA U373MG CELL MIGRATION CAPABILITY AND UPREGULATES PARP1 AND NF-kB LEVELS. BIOTECHNOLOGIA ACTA 2020. [DOI: 10.15407/biotech13.02.065] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Ibrahim HM, Mohamed AH, Salem ML, Osman GY, Morsi DS. Anti-neoplastic and immunomodulatory potency of co-treatment based on bovine lactoferrin and/or muramyl dipeptide in tumor-bearing mice. Toxicol Res (Camb) 2020; 9:137-147. [PMID: 32440345 PMCID: PMC7233322 DOI: 10.1093/toxres/tfaa012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Revised: 02/24/2020] [Accepted: 03/02/2020] [Indexed: 02/07/2023] Open
Abstract
The current study investigates anti-neoplastic and immunomodulatory activities of co-treatment based on bovine lactoferrin (bLF) and/or muramyl dipeptide (MDP) with or without cisplatin (Cis) in tumor-bearing mice. In the present study, bLF (100 mg/kg; orally) and MDP (0.5 mg/kg; subcutaneously) was administered alone or together. MDP or bLF was co-treated with Cis (1 mg/kg; intraperitoneally) in mice-bearing Ehrlich solid carcinoma. Tumor size, tumor mass proliferation, apoptosis using immunohistochemistry, the alteration in spleen cell proliferation, phenotype using flow cytometry and white blood cells total and differential counts were detected. Treatment with Cis or (bLF and MDP) significantly reduced tumor size, upregulated the pro-apoptotic p53 expression and downregulated the anti-apoptotic Bcl-2 and proliferative marker PCNA expression compared to non-treated tumor-bearing animals. Moreover, co-treatment of MDP and Cis significantly potentiated the reduction of the tumor size, downregulated the Bcl-2 and PCNA expression and upregulated the p53 expression compared to Cis-treated animals. While bLF and Cis co-treatment positively controlled PCNA and p53 expression compared to tumor-bearing animals, it significantly potentiated the reduction of the tumor size and downregulated the Bcl-2 expression compared to Cis-treated animals. Co-treatment of (bLF and MDP), (bLF and Cis) or (MDP and Cis) increased the spleen cell proliferation and altered the immunological profile of the CD3+CD4+, CD3+CD8+, CD3+CD4+CD69+, CD3+CD8+CD69+ and CD11b+Ly6G+ cells to achieve better immune response against tumor. In conclusion, co-treatments based on bLF and/or MDP are promising therapies against cancer, through their potency to control proliferation, enhance apoptosis and improve the immune status against tumor cells.
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Affiliation(s)
- Hany M Ibrahim
- Zoology Department, Faculty of Science, Menoufia University, Shibin El Kom 32511, Egypt
- Correspondence address. Zoology Department, Faculty of Science, Menoufia University, Shibin El Kom, Egypt. Tel: +02-0100-3689245, Fax: +02-048-2235689; E-mail:
| | - Azza H Mohamed
- Zoology Department, Faculty of Science, Menoufia University, Shibin El Kom 32511, Egypt
| | - Mohamed L Salem
- Zoology Department, Faculty of Science, Tanta University, Tanta 31527, Egypt
- Center of Excellence in Cancer Research, Tanta University, Tanta 31527, Egypt
| | - Gamalat Y Osman
- Zoology Department, Faculty of Science, Menoufia University, Shibin El Kom 32511, Egypt
| | - Dalia S Morsi
- Zoology Department, Faculty of Science, Menoufia University, Shibin El Kom 32511, Egypt
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Ji YF, Jiang X, Li W, Ge X. Impact of interleukin-6 gene polymorphisms and its interaction with obesity on osteoporosis risk in Chinese postmenopausal women. Environ Health Prev Med 2019; 24:48. [PMID: 31301734 PMCID: PMC6626630 DOI: 10.1186/s12199-019-0803-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Accepted: 07/02/2019] [Indexed: 01/05/2023] Open
Abstract
AIMS To investigate the association of four single-nucleotide polymorphisms (SNPs) of the IL-6 gene with osteoporosis (OST) susceptibility. METHODS PCR restriction fragment length polymorphism (PCR-RFLP) was carried out for SNPs detection. Generalized multifactor dimensionality reduction (GMDR) model and logistic regression model were used to examine the interaction between SNP and obesity on OST. RESULTS Logistic regression model revealed that G allele of rs1800796 and the T allele of rs2069849 were associated with increased OST risk, compared to those with wild genotype. However, no significant correlations were found when analyzing the association of rs1800795 and rs1554606 with OST risk. GMDR analysis suggested that the interaction model composed of the rs1800796 and obesity was the best model with statistical significance (P value from sign test [Psign] = 0.012), indicating a potential gene-environment interaction between rs1800796 and obesity. Overall, the two-locus models had a cross-validation consistency of 10/10 and had the testing accuracy of 0.641. We also conducted stratified analysis for rs1800796 genotype and obesity, and found that obese subjects with CG or GG genotype have the highest OST risk, compared to subjects with CC genotype, and normal BMI OR (95% CI) = 2.21 (1.52-3.49), after adjustment for age, smoke, and alcohol consumption status. CONCLUSIONS Our results suggested that the C allele of rs1800796 and the C allele of rs2069849 of IL-6 gene interaction between rs1800796 and abdominal obesity were all associated with increased OST risk.
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Affiliation(s)
- Ya-Feng Ji
- Department of Orthopaedic Surgery, Huzhou Central Hospital, 198 Hongqi Road, Huzhou, 313000, Zhejiang Province, China
| | - Xuesheng Jiang
- Department of Orthopaedic Surgery, Huzhou Central Hospital, 198 Hongqi Road, Huzhou, 313000, Zhejiang Province, China
| | - Wei Li
- Department of Orthopaedic Surgery, Huzhou Central Hospital, 198 Hongqi Road, Huzhou, 313000, Zhejiang Province, China.
| | - Xingtao Ge
- Department of Orthopedics 1, Rizhao People's Hospital, Rizhao, 276800, Shandong, China.
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Ginsenoside Rg3 protects against iE-DAP-induced endothelial-to-mesenchymal transition by regulating the miR-139-5p-NF-κB axis. J Ginseng Res 2019; 44:300-307. [PMID: 32148412 PMCID: PMC7031736 DOI: 10.1016/j.jgr.2019.01.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Revised: 12/03/2018] [Accepted: 01/14/2019] [Indexed: 01/02/2023] Open
Abstract
Background Emerging evidence suggests that endothelial-to-mesenchymal transition (EndMT) in endothelial dysfunction due to persistent inflammation is a key component and emerging concept in the pathogenesis of vascular diseases. Ginsenoside Rg3 (Rg3), an active compound from red ginseng, has been known to be important for vascular homeostasis. However, the effect of Rg3 on inflammation-induced EndMT has never been reported. Here, we hypothesize that Rg3 might reverse the inflammation-induced EndMT and serve as a novel therapeutic strategy for vascular diseases. Methods EndMT was examined under an inflammatory condition mediated by the NOD1 agonist, γ-d-glutamyl-meso-diaminopimelic acid (iE-DAP), treatment in human umbilical vein endothelial cells. The expression of EndMT markers was determined by Western blot analysis, real-time polymerase chain reaction, and immunocytochemistry. The underlying mechanisms of Rg3-mediated EndMT regulation were investigated by modulating the microRNA expression. Results The NOD1 agonist, iE-DAP, led to a fibroblast-like morphology change with a decrease in the expression of endothelial markers and an increase in the expression of the mesenchymal marker, namely EndMT. On the other hand, Rg3 markedly attenuated the iE-DAP–induced EndMT and preserved the endothelial phenotype. Mechanically, miR-139 was downregulated in cells with iE-DAP–induced EndMT and partly reversed in response to Rg3 via the regulation of NF-κB signaling, suggesting that the Rg3–miR-139-5p-NF-κB axis is a key mediator in iE-DAP-induced EndMT. Conclusion These results suggest, for the first time, that Rg3 can be used to inhibit inflammation-induced EndMT and may be a novel therapeutic option against EndMT-associated vascular diseases.
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