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Wang R, Gao Y. Long non-coding RNA growth arrest-specific 5 inhibits liver fibrogenesis in biliary atresia by interacting with microRNA-222 and repressing IGF1/AKT signaling. Transl Pediatr 2023; 12:2107-2120. [PMID: 38197105 PMCID: PMC10772835 DOI: 10.21037/tp-23-424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Accepted: 11/26/2023] [Indexed: 01/11/2024] Open
Abstract
Background Long non-coding RNA growth arrest-specific 5 (lncRNA GAS5) has been shown to inhibit liver fibrosis through serving as a competing endogenous RNA for microRNA-222 (miR-222). Progressive liver fibrosis is a typical characteristic of biliary atresia (BA). However, the role of GAS5/miR-222 and its underlying mechanisms remain largely unknown in BA. Methods The expression of GAS5 was determined in the liver and primary hepatic stellate cells (HSCs) of BA patients. Then, the effects of GAS5 on the activation and proliferation of HSCs were evaluated. Furthermore, the interaction between GAS5 and miR-222 was investigated by a luciferase gene report assay. Next, the effects of IGF1/AKT signaling were determined to clarify the downstream mechanism of GAS5. Finally, GAS5 administration was performed to explore its role in an experimental BA mouse model. Results GAS5 expression was decreased in liver tissues and HSCs of BA patients, and was inversely correlated with liver fibrosis in BA. Up-regulation of GAS5 in LX-2 cells significantly reduced smooth muscle α-actin (α-SMA) and collagen 1a1 (COL1A1) expression, inhibited cell proliferation and clone formation ability, induced S phase increase, and promoted cell apoptosis. Moreover, GAS5 was negatively regulated by miR-222, which promoted HSCs activation and proliferation, and was positively correlated with liver fibrosis in BA. Additionally, the expressions of IGF1, p-PI3K, and p-AKT were decreased when LX-2 cells over-expressed GAS5, whereas knockdown of IGF1 or AKT significantly decreased α-SMA and COL1A1 expression, suppressed cell proliferation, and enhanced cell apoptosis in LX-2 cells. Furthermore, GAS5 administration significantly increased apoptosis and reduced liver fibrosis, α-SMA and COL1A1 expressions in liver tissues of BA mice. Conclusions GAS5 inhibited liver fibrosis in BA by interacting with miR-222 and regulating IGF1/AKT signaling, which may be a therapeutic target to alleviate liver fibrosis in BA.
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Affiliation(s)
- Ruoyi Wang
- Department of Pediatric Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University School of Medicine, Xi'an, China
| | - Ya Gao
- Department of Pediatric Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University School of Medicine, Xi'an, China
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Lin Z, Tian Y, Chai C, Fu M, Wu Q, Tan L, Li L, Guan X, Wang Z, Zhao J, Wang H, Tong Y, Zhang Y, Zhang R. The association of immune-related genes and the potential role of IL10 with biliary atresia. Pediatr Res 2023; 94:1659-1666. [PMID: 37296215 DOI: 10.1038/s41390-023-02626-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Revised: 03/04/2023] [Accepted: 04/07/2023] [Indexed: 06/12/2023]
Abstract
BACKGROUND Biliary atresia (BA) is a severe immune-related disease that is characterized by biliary obstruction and cholestasis. The etiology of BA is unclear, our aim was to explore the relationship between biliary tract inflammation and immune-related genes. METHODS We selected 14 SNPs in 13 immune-related genes and investigated their associations with BA by using a large case‒control cohort with a total of 503 cases and 1473 controls from southern China. RESULTS SNP rs1518111 in interleukin10 (IL10) was identified as associated with BA (P = 5.79E-03; OR: 0.80; 95% CI: 0.68-0.94). The epistatic effects of the following pairwise interactions among these SNPs were associated with BA: signal transducer and activator of transcription 4 (STAT4) and chemokine (C-X-C motif) ligand 3 (CXCL3); STAT4 and damage-regulated autophagy modulator1 (DRAM1); CXCL3 and RAD51 paralog B (RAD51B); and interferon gamma (IFNG) and interleukin26 (IL26). Furthermore, we explored the potential role of IL-10 in the pathogenesis of the neonatal mouse model of BA. IL-10 effectively prevented biliary epithelial cell injury and biliary obstruction in murine BA as well as inhibit the activation of BA-related immune cells. CONCLUSIONS In conclusion, this study provided strong evidence implicating IL10 as a susceptibility gene for BA in the southern Chinese population. IMPACT This study provided strong evidence implicating IL10 as a susceptibility gene for BA in the southern Chinese population. This study could infer that IL-10 may play a protective role in BA mouse model. We found that four SNPs (rs7574865, rs352038, rs4622329, and rs4902562) have genetic interactions.
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Affiliation(s)
- Zefeng Lin
- Provincial Key Laboratory of Research in Structure Birth Defect Disease and Department of Pediatric Surgery, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Yan Tian
- Department of Anesthesiology, Jiangxi Provincial Children's Hospital, Nanchang, Jiangxi, China
| | - Chengwei Chai
- Provincial Key Laboratory of Research in Structure Birth Defect Disease and Department of Pediatric Surgery, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Ming Fu
- Provincial Key Laboratory of Research in Structure Birth Defect Disease and Department of Pediatric Surgery, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Qi Wu
- Provincial Key Laboratory of Research in Structure Birth Defect Disease and Department of Pediatric Surgery, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Ledong Tan
- Provincial Key Laboratory of Research in Structure Birth Defect Disease and Department of Pediatric Surgery, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Le Li
- Provincial Key Laboratory of Research in Structure Birth Defect Disease and Department of Pediatric Surgery, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Xisi Guan
- Provincial Key Laboratory of Research in Structure Birth Defect Disease and Department of Pediatric Surgery, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Zhe Wang
- Provincial Key Laboratory of Research in Structure Birth Defect Disease and Department of Pediatric Surgery, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Jinglu Zhao
- Provincial Key Laboratory of Research in Structure Birth Defect Disease and Department of Pediatric Surgery, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Hezhen Wang
- Provincial Key Laboratory of Research in Structure Birth Defect Disease and Department of Pediatric Surgery, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Yanlu Tong
- Provincial Key Laboratory of Research in Structure Birth Defect Disease and Department of Pediatric Surgery, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Yan Zhang
- Provincial Key Laboratory of Research in Structure Birth Defect Disease and Department of Pediatric Surgery, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Ruizhong Zhang
- Provincial Key Laboratory of Research in Structure Birth Defect Disease and Department of Pediatric Surgery, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China.
- Department of Pediatric Surgery, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China.
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Abstract
Biliary atresia (BA) is the most prevalent serious liver disease of infancy and childhood, and the principal indication for liver transplantation in pediatrics. BA is best considered as an idiopathic panbiliary cholangiopathy characterized by obstruction of bile flow and consequent cholestasis presenting during fetal and perinatal periods. While several etiologies have been proposed, each has significant drawbacks that have limited understanding of disease progression and the development of effective treatments. Recently, modern genetic analyses have uncovered gene variants contributing to BA, thereby shifting the paradigm for explaining the BA phenotype from an acquired etiology (e.g., virus, toxin) to one that results from genetically altered cholangiocyte development and function. Herein we review recently reported genetic contributions to BA, highlighting the enhanced representation of variants in biological pathways involving ciliary function, cytoskeletal structure, and inflammation. Finally, we blend these findings as a new framework for understanding the resultant BA phenotype as a developmental cholangiopathy.
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Affiliation(s)
- Dominick J Hellen
- Division of Pediatric Gastroenterology, Hepatology, and Nutrition, Children's Healthcare of Atlanta and Emory University School of Medicine, Atlanta, Georgia
| | - Saul J Karpen
- Division of Pediatric Gastroenterology, Hepatology, and Nutrition, Children's Healthcare of Atlanta and Emory University School of Medicine, Atlanta, Georgia
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Relationship between the expression levels of CD4+ T cells, IL-6, IL-8 and IL-33 in the liver of biliary atresia and postoperative cholangitis, operative age and early jaundice clearance. Pediatr Surg Int 2022; 38:1939-1947. [PMID: 36242601 DOI: 10.1007/s00383-022-05258-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/03/2022] [Indexed: 10/17/2022]
Abstract
OBJECTIVE To investigate the expression levels of CD4+ T cells, IL-6, IL-8 and IL-33 in liver tissue of BA, and the relationship with postoperative cholangitis, operative age and early jaundice clearance. METHODS 45 cases of jaundice treated in the hospital from June 2018 to May 2020 were analyzed retrospectively. The expression and distribution of these factors were detected by HE staining and immunohistochemistry, the total bilirubin level and the incidence of cholangitis were recorded, and the relationship between liver inflammation level and the postoperative incidence of cholangitis, age of operation and early jaundice clearance were compared. RESULTS Immunohistochemistry showed that the expression of CD4+ T cells, IL-6, IL-8 and IL-33 in the BA group were higher than those in the CBD group. ROC curve analysis showed the AUC of CD4+ T cells, IL-6 and IL-8 were 0.869, 0.886 and 0.838, respectively. The expression level of CD4+ T cells was negatively correlated with the decline rate of TBIL 3 months after operation, and the expressions of IL-8 and IL-33 were negatively correlated with the decline rate of TBIL 1 week after operation. CONCLUSION The high expression of CD4+ T cells, IL-6, IL-8 and IL-33 in the BA liver tissue may lead to cholangitis and can be used as a predictor of early jaundice clearance. The degree of liver inflammation infiltration had nothing to do with the age of operation and is not a risk factor for postoperative cholangitis.
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Chang D, Geng X, Zhou L, Hou G. Serum TGF- β1 and VEGF Levels Reflect the Liver Hardness and Function in Children with Biliary Atresia. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2022; 2022:5802548. [PMID: 35912145 PMCID: PMC9334070 DOI: 10.1155/2022/5802548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 06/13/2022] [Accepted: 06/17/2022] [Indexed: 11/17/2022]
Abstract
Objective This study further explored the wind direction correlation analysis between serum levels of TGF-β1 and VEGF and liver function assessment in children with biliary atresia. Methods A total of 62 children with biliary atresia (BA) who received surgical treatment in our hospital from October 2020 to October 2021 were selected as the research objects (BA group), and 50 normal healthy children who received routine physical examination in our hospital during the same period were selected as blank control group. Outcome measures included postoperative total bilirubin levels and conjugality of enrolled patients. Bilirubin level, unbound bilirubin level, serum transforming growth factor-beta-1 (TGF-β1), vascular endothelial growth factor (VEGF), liver function indicators albumin (ALB), alanine aminotransferase (ALT), aspartate aminotransferase (AST), and other observation indicators were included. All data in this study were collected and analyzed by SPSS 23.0 software, and t-test was performed. Results The serum levels of TGF-β1, VEGF, ALT, AST, GGT, and liver hardness were significantly higher in children with jaundice than those without jaundice, and the serum ALB level was significantly lower than that in children without jaundice (P < 0.05). The levels of TGF-β1 and VEGF in BA group were positively correlated with the levels of ALT, AST, GGT, and liver hardness (P < 0.05) but negatively correlated with the level of ALB (P < 0.05). Conclusion The levels of serum TGF-β1 and VEGF in children with biliary atresia have a certain risk correlation with liver function damage, which will become a research focus on the mechanism of liver fibrosis in the diagnosis and treatment of biliary atresia in children.
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Affiliation(s)
- Dongzhe Chang
- General Surgery Department, Henan Provincial Children's Hospital, Affiliated Hospital of Zhengzhou University, China
| | - Xianjie Geng
- General Surgery Department, Henan Provincial Children's Hospital, Affiliated Hospital of Zhengzhou University, China
| | - Liang Zhou
- General Surgery Department, Henan Provincial Children's Hospital, Affiliated Hospital of Zhengzhou University, China
| | - Guangjun Hou
- General Surgery Department, Henan Provincial Children's Hospital, Affiliated Hospital of Zhengzhou University, China
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Biliary Atresia Animal Models: Is the Needle in a Haystack? Int J Mol Sci 2022; 23:ijms23147838. [PMID: 35887185 PMCID: PMC9324346 DOI: 10.3390/ijms23147838] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2022] [Revised: 07/11/2022] [Accepted: 07/13/2022] [Indexed: 02/06/2023] Open
Abstract
Biliary atresia (BA) is a progressive fibro-obliterative process with a variable degree of inflammation involving the hepatobiliary system. Its consequences are incalculable for the patients, the affected families, relatives, and the healthcare system. Scientific communities have identified a rate of about 1 case per 10,000-20,000 live births, but the percentage may be higher, considering the late diagnoses. The etiology is heterogeneous. BA, which is considered in half of the causes leading to orthotopic liver transplantation, occurs in primates and non-primates. To consolidate any model, (1) more transport and cell membrane studies are needed to identify the exact mechanism of noxa-related hepatotoxicity; (2) an online platform may be key to share data from pilot projects and new techniques; and (3) the introduction of differentially expressed genes may be useful in investigating the liver metabolism to target the most intricate bilio-toxic effects of pharmaceutical drugs and toxins. As a challenge, such methodologies are still limited to very few centers, making the identification of highly functional animal models like finding a "needle in a haystack". This review compiles models from the haystack and hopes that a combinatorial search will eventually be the root for a successful pathway.
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He L, Chung PHY, Lui VCH, Tang CSM, Tam PKH. Current Understanding in the Clinical Characteristics and Molecular Mechanisms in Different Subtypes of Biliary Atresia. Int J Mol Sci 2022; 23:ijms23094841. [PMID: 35563229 PMCID: PMC9103665 DOI: 10.3390/ijms23094841] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 04/23/2022] [Accepted: 04/24/2022] [Indexed: 02/01/2023] Open
Abstract
Biliary atresia is a severe obliterative cholangiopathy in early infancy that is by far the most common cause of surgical jaundice and the most common indicator for liver transplantation in children. With the advanced knowledge gained from different clinical trials and the development of research models, a more precise clinical classification of BA (i.e., isolated BA (IBA), cystic BA (CBA), syndromic BA (SBA), and cytomegalovirus-associated BA (CMVBA)) is proposed. Different BA subtypes have similar yet distinguishable clinical manifestations. The clinical and etiological heterogeneity leads to dramatically different prognoses; hence, treatment needs to be specific. In this study, we reviewed the clinical characteristics of different BA subtypes and revealed the molecular mechanisms of their developmental contributors. We aimed to highlight the differences among these various subtypes of BA which ultimately contribute to the development of a specific management protocol for each subtype.
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Affiliation(s)
- Lin He
- Cancer Centre, Faculty of Health Sciences, University of Macau, Macau SAR, China;
| | - Patrick Ho Yu Chung
- Division of Paediatric Surgery, Department of Surgery, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China; (V.C.H.L.); (C.S.M.T.); (P.K.H.T.)
- Correspondence: ; Tel.: +852-22554850; Fax: +852-28173155
| | - Vincent Chi Hang Lui
- Division of Paediatric Surgery, Department of Surgery, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China; (V.C.H.L.); (C.S.M.T.); (P.K.H.T.)
| | - Clara Sze Man Tang
- Division of Paediatric Surgery, Department of Surgery, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China; (V.C.H.L.); (C.S.M.T.); (P.K.H.T.)
| | - Paul Kwong Hang Tam
- Division of Paediatric Surgery, Department of Surgery, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China; (V.C.H.L.); (C.S.M.T.); (P.K.H.T.)
- Faculty of Medicine, Macau University of Science and Technology, Macau SAR, China
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Liu T, Li H, Li Y, Wang L, Chen G, Pu G, Guo X, Cho WC, Fasihi Harandi M, Zheng Y, Luo X. Integrative Analysis of RNA Expression and Regulatory Networks in Mice Liver Infected by Echinococcus multilocularis. Front Cell Dev Biol 2022; 10:798551. [PMID: 35399512 PMCID: PMC8989267 DOI: 10.3389/fcell.2022.798551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Accepted: 02/17/2022] [Indexed: 11/13/2022] Open
Abstract
The larvae of Echinococcus multilocularis causes alveolar echinococcosis, which poses a great threat to the public health. However, the molecular mechanisms underlying the host and parasite interactions are still unclear. Exploring the transcriptomic maps of mRNA, miRNA and lncRNA expressed in the liver in response to E. multilocularis infection will help us to understand its pathogenesis. Using liver perfusion, different cell populations including the hepatic cells, hepatic stellate cells and Kupffer cells were isolated from mice interperitoneally inoculated with protoscoleces. Their transcriptional profiles including lncRNAs, miRNAs and mRNAs were done by RNA-seq. Among these cell populations, the most differentially-expressed (DE) mRNA, lncRNAs and miRNAs were annotated and may involve in the pathological processes, mainly including metabolic disorders, immune responses and liver fibrosis. Following the integrative analysis of 38 differentially-expressed DEmiRNAs and 8 DElncRNAs, the lncRNA-mRNA-miRNA networks were constructed, including F63-miR-223-3p-Fbxw7/ZFP36/map1b, F63-miR-27-5p-Tdrd6/Dip2c/Wdfy4 and IFNgAS1-IFN-γ. These results unveil the presence of several potential lncRNA-mRNA-miRNA axes during E. multilocularis infection, and further exploring of these axes may contribute to better understanding of the pathogenic mechanisms.
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Affiliation(s)
- Tingli Liu
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, CAAS, Lanzhou, China
| | - Hong Li
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, CAAS, Lanzhou, China
| | - Yanping Li
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, CAAS, Lanzhou, China
| | - Liqun Wang
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, CAAS, Lanzhou, China
| | - Guoliang Chen
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, CAAS, Lanzhou, China
| | - Guiting Pu
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, CAAS, Lanzhou, China
| | - Xiaola Guo
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, CAAS, Lanzhou, China
| | - William C. Cho
- Department of Clinical Oncology, Queen Elizabeth Hospital, Hong Kong SAR, China
| | - Majid Fasihi Harandi
- Research Center for Hydatid Disease in Iran, Kerman University of Medical Sciences, Kerman, Iran
| | - Yadong Zheng
- Key Laboratory of Applied Technology on Green-Eco-Healthy Animal Husbandry of Zhejiang Province, Zhejiang International Science and Technology Cooperation Base for Veterinary Medicine and Health Management, Zhejiang Provincial Engineering Laboratory for Animal Health Inspection and Internet Technology, Zhejiang International Science and Technology Cooperation Base for Veterinary Medicine and Health Management, China-Australia Joint Laboratory for Animal Health Big Data Analytics, College of Animal Science and Technology and College of Veterinary Medicine of Zhejiang A&F University, Hangzhou, China
- *Correspondence: Xuenong Luo, ; Yadong Zheng,
| | - Xuenong Luo
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, CAAS, Lanzhou, China
- *Correspondence: Xuenong Luo, ; Yadong Zheng,
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Cholangiopathies and the noncoding revolution. Curr Opin Gastroenterol 2022; 38:128-135. [PMID: 35098934 DOI: 10.1097/mog.0000000000000806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
PURPOSE OF REVIEW Noncoding RNAs (ncRNAs), including microRNAs (miRNAs) and long noncoding RNAs (lncRNAs) among others, have attracted a great deal of attention for their potential role as master regulators of gene expression and as therapeutic targets. This review focuses on recent advances on the role of ncRNAs in the pathogenesis, diagnosis and treatment of diseases of the cholangiocytes (i.e. cholangiopathies). RECENT FINDINGS In the recent years, there has been an exponential growth in the knowledge on ncRNAs and their role in cholangiopathies, particularly cholangiocarcinoma. SUMMARY Although several studies focused on miRNAs as noninvasive biomarkers for diagnosis and staging, several studies also highlighted their functions and provided new insights into disease mechanisms.
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Biliary Atresia: A Complex Hepatobiliary Disease with Variable Gene Involvement, Diagnostic Procedures, and Prognosis. Diagnostics (Basel) 2022; 12:diagnostics12020330. [PMID: 35204421 PMCID: PMC8870870 DOI: 10.3390/diagnostics12020330] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Accepted: 01/24/2022] [Indexed: 02/04/2023] Open
Abstract
The diagnosis of biliary atresia is still terrifying at the 3rd decade of the 21st century. In a department of neonatal intensive care unit, parents and physicians face a challenge with a jaundiced baby, who may or may not have a surgically correctable hepatopathy. The approach has been systematically evaluated, but the etiology remains ambiguous. The study of families with recurrent biliary atresia has been undertaken at a molecular level. The primary interest with this disease is to identify the etiology and change the treatment from symptomatic to curative. The occurrence of this obstructive cholangio-hepatopathy in well-known genetic syndromes has suggested just coincidental finding, but the reality can be more intriguing because some of these diseases may have some interaction with the development of the intrahepatic biliary system. Several genes have been investigated thoroughly, including ADD3 and GPC1 shifting the interest from viruses to genetics. In this review, the intriguing complexities of this hepatobiliary disease are highlighted.
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Zhang Q, Liu Y, Yuan Y, Yao F, Zhang H, Zhao C, Luo Y. miR-26a-5p protects against drug-induced liver injury via targeting bid. Toxicol Mech Methods 2021; 32:325-332. [PMID: 34749575 DOI: 10.1080/15376516.2021.2003919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
BACKGROUNDS miR-26a-5p is a short noncoding RNA that is abnormally expressed in drug-induced liver injury (DILI), but its pathophysiologic role in the mechanism of disease in DILI is still vague. METHODS The expression of miR-26a-5p, viability of hepatic stellate cells (HSCs) proliferation, and apoptosis were explored via real-time PCR, CCK-8 assay, Tunel fluorescence, and flow cytometry. The expression of Bid was detected via Western blot assays, real-time PCR, and immunofluorescence. The apoptosis-associated proteins were determined through Western blot. The interaction between miR-26a-5p and Bid was measured via Dual luciferase reporter assay. RESULTS miR-26a-5p expression was greatly decreased in HSCs and serum treated with azithromycin, simvastatin and diclofenac sodium, respectively. Hepatocyte viability was largely suppressed while hepatocyte apoptosis was markedly increased in DILI. Correspondingly, the apoptosis-associated proteins including Bid, caspase-8 and cytochrome C in HSCs were significantly upregulated when treated with either of these drugs. Moreover, miR-26a-5p interacted with Bid, and hepatocyte proliferation and apoptosis influenced by miR-26a-5p mimics were obviously reversed when co-treated with overexpressed Bid plasmids. CONCLUSIONS miR-26a-5p played a protective role against DILI via targeting Bid.
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Affiliation(s)
- Qian Zhang
- Department of Geriatrics, the third Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Yan Liu
- Department of Geriatrics, the third Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Yujie Yuan
- Department of Neurology, The Gucheng County Hospital of Hebei Province, Hebei, China
| | - Feifei Yao
- Department of Geriatrics, the third Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Hongmei Zhang
- Department of Geriatrics, the third Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Caiyan Zhao
- Department of Infectious Diseases, the third Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Yanli Luo
- Department of Geriatrics, the third Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
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Mahala S, Rai S, Singh A, Mehrotra A, Pandey HO, Kumar A. Perspectives of bovine and human milk exosomics as health biomarkers for advancing systemic therapeutic potential. FOOD BIOTECHNOL 2021. [DOI: 10.1080/08905436.2021.1979033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Sudarshan Mahala
- Animal Genetics Division, Indian Council of Agricultural Research (ICAR)-indian Veterinary Research Institute, Bareilly, India
| | - Sweta Rai
- Department of Food Science and Technology, College of Agriculture, Gbpuat, Pantnagar US Nagar, Uttarakhand, India
| | - Akansha Singh
- Animal Genetics Division, Indian Council of Agricultural Research (ICAR)-indian Veterinary Research Institute, Bareilly, India
| | - Arnav Mehrotra
- Animal Genetics Division, Indian Council of Agricultural Research (ICAR)-indian Veterinary Research Institute, Bareilly, India
| | - Hari Om Pandey
- Scientist, Livestock Production and Management, Indian Council of Agricultural Research (ICAR)-indian Veterinary Research Institute, Bareilly, India
| | - Amit Kumar
- Animal Genetics Division, Indian Council of Agricultural Research (ICAR)-indian Veterinary Research Institute, Bareilly, India
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Gao F, He S, Jin A. MiRNAs and lncRNAs in NK cell biology and NK/T-cell lymphoma. Genes Dis 2021; 8:590-602. [PMID: 34291131 PMCID: PMC8278539 DOI: 10.1016/j.gendis.2020.08.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 08/07/2020] [Accepted: 08/19/2020] [Indexed: 12/15/2022] Open
Abstract
The important role of lncRNAs and miRNAs in directing immune responses has become increasingly clear. Recent evidence conforms that miRNAs and lncRNAs are involved in NK cell biology and diseases through RNA-protein, RNA-RNA, or RNA-DNA interactions. In this view, we summarize the contribution of miRNAs and lncRNAs to NK cell lineage development, activation and function, highlight the biological significance of functional miRNAs or lncRNAs in NKTL and discuss the potential of these miRNAs and lncRNAs as innovative biomarkers/targets for NKTL early diagnosis, target treatment and prognostic evaluations.
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Affiliation(s)
- FengXia Gao
- Department of Immunology, Chongqing Medical University, Chongqing, 400010, PR China
- Chongqing Key Laboratory of Tumor Immunology and Tumor Immunotherapy, Chongqing Medical University, No.1, Medical School Road, Yuzhong District, Chongqing, 400010, PR China
| | - SiRong He
- Department of Immunology, Chongqing Medical University, Chongqing, 400010, PR China
- Chongqing Key Laboratory of Tumor Immunology and Tumor Immunotherapy, Chongqing Medical University, No.1, Medical School Road, Yuzhong District, Chongqing, 400010, PR China
| | - AiShun Jin
- Department of Immunology, Chongqing Medical University, Chongqing, 400010, PR China
- Chongqing Key Laboratory of Tumor Immunology and Tumor Immunotherapy, Chongqing Medical University, No.1, Medical School Road, Yuzhong District, Chongqing, 400010, PR China
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14
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Guo J, Tang T, Li J, Yang Y, Quan Y, Zhang L, Huang W, Zhou M. Overexpression of MicroRNA 142-5p Suppresses the Progression of Cervical Cancer through Targeting Phosphoinositol-3-Kinase Adaptor Protein 1 Expression. Mol Cell Biol 2021; 41:e0036320. [PMID: 33288643 PMCID: PMC8316050 DOI: 10.1128/mcb.00363-20] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 08/22/2020] [Accepted: 12/02/2020] [Indexed: 12/15/2022] Open
Abstract
The aim of current study was to explore the mechanism of microRNA 142-5p (miR-142-5p) in cervical cancer through mediating the phosphoinositol-3-kinase adaptor protein 1 (PIK3AP1)/PI3K/AKT axis. To this end, reverse transcription-quantitative PCR (RT-qPCR) and Western blot analysis results revealed that miR-142-5p was poorly expressed, whereas PIK3AP1 was highly expressed, in cervical cancer tissues and cells. Furthermore, miR-142-5p was hypermethylated in cervical cancer, as reflected by methylation-specific PCR (MS-PCR) and chromatin immunoprecipitation (ChIP) assessment of enrichment of DNMT1/DNMT3a/DNMT3b in the promoter region of miR-142-5p. A target binding relationship between miR-142-5p and PIK3AP1 was established, showing that miR-142-5p targeted and inhibited the expression of PIK3AP1. Loss- and gain-of-function assays were conducted to determine the roles of miR-142-5p and PIK3AP1 in cervical cancer cells. CCK-8, flow cytometry, and Transwell assay results revealed that overexpression of miR-142-5p in cervical cancer cells downregulated PIK3AP1 and inhibited the PI3K/AKT signaling pathway, leading to reduced proliferation, migration, and invasion capacity of cervical cancer cells but enhanced apoptosis. Collectively, epigenetic regulation of miR-142-5p targeted PIK3AP1 to inactivate the PI3K/AKT signaling pathway, thus suppressing development of cervical cancer, which presents new targets for the treatment of cervical cancer.
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Affiliation(s)
- Junliang Guo
- Department of Obstetrics and Gynaecology, Centre for Reproductive Medicine, West China Second University Hospital, Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, Sichuan University, Chengdu, People’s Republic of China
| | - Tian Tang
- Department of Obstetrics and Gynaecology, Centre for Reproductive Medicine, West China Second University Hospital, Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, Sichuan University, Chengdu, People’s Republic of China
| | - Jinhong Li
- Department of Obstetrics and Gynaecology, Centre for Reproductive Medicine, West China Second University Hospital, Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, Sichuan University, Chengdu, People’s Republic of China
| | - Yihong Yang
- Department of Obstetrics and Gynaecology, Centre for Reproductive Medicine, West China Second University Hospital, Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, Sichuan University, Chengdu, People’s Republic of China
| | - Yi Quan
- Department of Obstetrics and Gynaecology, Centre for Reproductive Medicine, West China Second University Hospital, Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, Sichuan University, Chengdu, People’s Republic of China
| | - Long Zhang
- Department of Obstetrics and Gynaecology, Centre for Reproductive Medicine, West China Second University Hospital, Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, Sichuan University, Chengdu, People’s Republic of China
| | - Wei Huang
- Department of Obstetrics and Gynaecology, Centre for Reproductive Medicine, West China Second University Hospital, Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, Sichuan University, Chengdu, People’s Republic of China
| | - Muchuan Zhou
- Department of Anesthesia, Sichuan Integrative Medicine Hospital, Sichuan Academy of Chinese Medicine Science, Chengdu, People’s Republic of China
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15
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Ofoeyeno N, Ekpenyong E, Braconi C. Pathogenetic Role and Clinical Implications of Regulatory RNAs in Biliary Tract Cancer. Cancers (Basel) 2020; 13:E12. [PMID: 33375055 PMCID: PMC7792779 DOI: 10.3390/cancers13010012] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 12/18/2020] [Accepted: 12/19/2020] [Indexed: 02/07/2023] Open
Abstract
Biliary tract cancer (BTC) is characterised by poor prognosis and low overall survival in patients. This is generally due to minimal understanding of its pathogenesis, late diagnosis and limited therapeutics in preventing or treating BTC patients. Non-coding RNA (ncRNA) are small RNAs (mRNA) that are not translated to proteins. ncRNAs were considered to be of no importance in the genome, but recent studies have shown they play essential roles in biology and oncology such as transcriptional repression and degradation, thus regulating mRNA transcriptomes. This has led to investigations into the role of ncRNAs in the pathogenesis of BTC, and their clinical implications. In this review, the mechanisms of action of ncRNA are discussed and the role of microRNAs in BTC is summarised. The scope of this review will be limited to miRNA as they have been shown to play the most significant roles in BTC progression. There is huge potential in miRNA-based biomarkers and therapeutics in BTC, but more studies, research and technological advancements are required before it can be translated into clinical practice for patients.
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Affiliation(s)
- Nduka Ofoeyeno
- The Institute of Cancer Sciences, University of Glasgow, Glasgow G61 1QH, UK;
| | | | - Chiara Braconi
- The Institute of Cancer Sciences, University of Glasgow, Glasgow G61 1QH, UK;
- Beatson West of Scotland Cancer Centre, Glasgow G12 Y0N, UK
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16
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Isaeva MK, Belova VA, Korostin DO, Degtyareva AV. Genetic aspects of biliary atresia etiology. BULLETIN OF RUSSIAN STATE MEDICAL UNIVERSITY 2020. [DOI: 10.24075/brsmu.2020.069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Biliary atresia (BA) is a cholestatic disorder of infancy that is fatal if untreated. Despite years of study the etiology of BA remains unknown. Three etiopathogenic mechanisms may be involved, such as immune dysregulation, environmental factors and genetic susceptibility. Genetic predisposition is being actively studied. Candidate genes associated with BA in certain populations, genes affecting the cholangiocyte cilia function, as well as genes involved in stress responses have been identified. However, the long-term follow-up of twins with BA suggests that genotype is not of paramount importance for the disease development. Both epigenetic patterns and postzygotic somatic mutations may contribute to etiology of the disease. Recently, some evidence is being accumulated on the possible genetic predisposition to certain outcome of Kasai portoenterostomy performed in patients with BA. However, the presence of a number of factors contributing to the development of the disease makes it difficult to identify the genetic markers.
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Affiliation(s)
- MKh Isaeva
- Academician V. I. Kulakov Research Center for Obstetrics, Gynecology and Perinatology, Moscow, Russia
| | - VA Belova
- Pirogov Russian National Research Medical University, Moscow, Russia
| | - DO Korostin
- Pirogov Russian National Research Medical University, Moscow, Russia
| | - AV Degtyareva
- Academician V. I. Kulakov Research Center for Obstetrics, Gynecology and Perinatology, Moscow, Russia; I. M. Sechenov First Moscow State Medical University, Moscow, Russia
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17
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Yu X, Li R, He L, Ding X, Liang Y, Peng W, Shi H, Lin H, Zhang Y, Lu D. MicroRNA-29b modulates the innate immune response by suppressing IFNγs production in orange-spotted grouper (Epinephelus coioides). FISH & SHELLFISH IMMUNOLOGY 2020; 104:537-544. [PMID: 32470508 DOI: 10.1016/j.fsi.2020.05.057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Revised: 05/06/2020] [Accepted: 05/23/2020] [Indexed: 06/11/2023]
Abstract
Interferon-γ (IFNγ), a type II interferon, is essential to host resistance against various infections. Unlike other vertebrates, fish have two types of IFNγs, IFNγ1 (also named IFNγ-rel) and IFNγ2. MicroRNAs (miRNAs) regulate multiple biological processes by suppressing mRNA translation or inducing mRNA degradation. Among them, miR-29 can directly target IFNγ and affact innate and adaptive immune responses in mice. There are five members of the miR-29 family in orange-spotted grouper (Epinephelus coioides), which share the same miRNA seed region. However, whether miR-29 directly targets E. coioides IFNγs and regulate IFNγ production is still unknown. In the present study, the negative correlation between miR-29b and both IFNγs in immune tissues of healthy E. coioides and grouper spleen cells (GS cells) stimulated with LPS or poly I:C was demonstrated. Moreover, dual-luciferase reporter assays and western blotting were performed to demonstrate that miR-29b suppressed E. coioides IFNγ production. Studies of NO production in GS cells after miR-29b transfection revealed that miR-29b overexpression affected NO production through the downregulation of IFNγ expression. Taken together, our results suggest that miR-29b may directly target E. coioides IFNγs and modulate IFNγ-mediated innate immune responses by suppressing E. coioides IFNγs production.
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Affiliation(s)
- Xue Yu
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory for Aquatic Economic Animals and Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), School of Life Sciences, Sun Yat-Sen University, 510275, Guangzhou, PR China
| | - Ruozhu Li
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory for Aquatic Economic Animals and Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), School of Life Sciences, Sun Yat-Sen University, 510275, Guangzhou, PR China
| | - Liangge He
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory for Aquatic Economic Animals and Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), School of Life Sciences, Sun Yat-Sen University, 510275, Guangzhou, PR China
| | - Xu Ding
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory for Aquatic Economic Animals and Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), School of Life Sciences, Sun Yat-Sen University, 510275, Guangzhou, PR China
| | - Yaosi Liang
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory for Aquatic Economic Animals and Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), School of Life Sciences, Sun Yat-Sen University, 510275, Guangzhou, PR China
| | - Wan Peng
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory for Aquatic Economic Animals and Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), School of Life Sciences, Sun Yat-Sen University, 510275, Guangzhou, PR China; State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University, Guangzhou, 510275, PR China
| | - Herong Shi
- Marine Fisheries Development Center of Guangdong Province, Huizhou, 516081, PR China
| | - Haoran Lin
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory for Aquatic Economic Animals and Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), School of Life Sciences, Sun Yat-Sen University, 510275, Guangzhou, PR China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266235, PR China; College of Ocean, Hainan University, Haikou, 570228, PR China
| | - Yong Zhang
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory for Aquatic Economic Animals and Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), School of Life Sciences, Sun Yat-Sen University, 510275, Guangzhou, PR China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266235, PR China.
| | - Danqi Lu
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory for Aquatic Economic Animals and Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), School of Life Sciences, Sun Yat-Sen University, 510275, Guangzhou, PR China.
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18
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Zhang J, Chen GY, Wang F, Zhou G. MiR-29b interacts with IFN-γ and induces DNA hypomethylation in CD4+ T cells of oral lichen planus. Int J Biol Macromol 2020; 147:1248-1254. [DOI: 10.1016/j.ijbiomac.2019.09.252] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 09/27/2019] [Accepted: 09/27/2019] [Indexed: 12/17/2022]
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19
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Wang JY, Cheng H, Zhang HY, Ye YQ, Feng Q, Chen ZM, Zheng YL, Wu ZG, Wang B, Yao J. Suppressing microRNA-29c promotes biliary atresia-related fibrosis by targeting DNMT3A and DNMT3B. Cell Mol Biol Lett 2019; 24:10. [PMID: 30906331 PMCID: PMC6410490 DOI: 10.1186/s11658-018-0134-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Accepted: 12/18/2018] [Indexed: 12/15/2022] Open
Abstract
This study was designed to investigate the potential role of microRNA-29c (miR-29c) in biliary atresia-related fibrosis. The expression of miR-29c was determined in 15 pairs of peripheral blood samples from infants with biliary atresia (BA) and infants with non-BA neonatal cholestasis using quantitative real-time PCR. EMT was established by induction with TGF-β1 in HIBEpiC cells. MiR-29c was inhibited by lipofectamine transfection. The expressions of proteins related to epithelial-mesenchymal transition (EMT), i.e., E-cadherin, N-cadherin and vimentin, were determined using quantitative real-time PCR and western blotting. Direct interaction between miR-29c and DNMT3A and DNMT3B was identified using a luciferase reporter assay. The expressions of DNMT3A and DNMT3B were suppressed by treatment with SGI-1027. Patients with BA showed significantly lower miR-29c levels in peripheral blood samples than the control subjects. In vitro, TGF-β1-induced EMT significantly decreased the expression of miR-29c. Downregulation of miR-29c had a promotional effect on BA-related fibrosis in HIBEpiC cells, as confirmed by the decrease in E-cadherin and increase in N-cadherin and vimentin levels. MiR-29c was found to target the 3'UTR of DNMT3A and DNMT3B and inhibit their expression. Suppression of DNMT3A and DNMT3B reversed the effects of miR-29c downregulation on BA-related fibrosis in HIBEpiC cells. These data suggest that BA-related fibrosis is closely associated with the occurrence of EMT in HIBEpiC cells. MiR-29c might be a candidate for alleviating BA-related fibrosis by targeting DNMT3A and DNMT3B.
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Affiliation(s)
- Jian-yao Wang
- Department of General Surgery, Shenzhen Children’s Hospital, Shenzhen, 518026 Guangdong Province China
| | - Hao Cheng
- Graduate School of China Medical University, Shenzhen, 110122 Liaoning Province China
| | - Hong-yan Zhang
- Graduate School of China Medical University, Shenzhen, 110122 Liaoning Province China
| | - Yong-qin Ye
- Department of General Surgery, Shenzhen Children’s Hospital, Shenzhen, 518026 Guangdong Province China
| | - Qi Feng
- Department of General Surgery, Shenzhen Children’s Hospital, Shenzhen, 518026 Guangdong Province China
| | - Zi-min Chen
- Department of General Surgery, Shenzhen Children’s Hospital, Shenzhen, 518026 Guangdong Province China
| | - Yue-lan Zheng
- Department of General Surgery, Shenzhen Children’s Hospital, Shenzhen, 518026 Guangdong Province China
| | - Zhou-guang Wu
- Department of General Surgery, Shenzhen Children’s Hospital, Shenzhen, 518026 Guangdong Province China
| | - Bin Wang
- Department of General Surgery, Shenzhen Children’s Hospital, Shenzhen, 518026 Guangdong Province China
| | - Jun Yao
- Department of Gastroenterology, Jinan University of Medical Sciences, Shenzhen Municipal People’s Hospital, Shenzhen, 518020 Guangdong Province China
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20
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Abstract
PURPOSE OF REVIEW Biliary atresia is a poorly understood deadly disease. Genetic predisposition factors are suspected albeit not firmly established. This review summarizes recent evidence of genetic alterations in biliary atresia. RECENT FINDINGS Whole-genome association studies in biliary atresia patients identified four distinct predisposition loci with four different genes potentially involved in the disease occurrence. Variations in these genes were searched for, but none were found in patients with biliary atresia suggesting complex mechanisms. SUMMARY Despite decades since its description and decades of intensive researches, cause of biliary atresia disease remains enigmatic. The inheritance of biliary atresia is not Mendelian. Genetic predisposition factor is one of the explored fields to explain biliary atresia pathogenicity. Biliary atresia has been associated with several inborn syndromes, chromosome anomalies, and gene polymorphisms in specific populations. Four predisposition loci encompassing genes relevant to the disease have been identified, but no pathogenic variations were found in biliary atresia patients. Few reported cases of isolated biliary atresia manifestation in the context of known genetic diseases suggest coincidental findings. Alternatives to classic genetic alterations are proposed to explain genetic predisposition in biliary atresia including noncoding and epigenetic factors. Biliary atresia is most likely related to complex traits making its genetic exploration challenging.
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21
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Melnik BC, Schmitz G. Exosomes of pasteurized milk: potential pathogens of Western diseases. J Transl Med 2019; 17:3. [PMID: 30602375 PMCID: PMC6317263 DOI: 10.1186/s12967-018-1760-8] [Citation(s) in RCA: 68] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2018] [Accepted: 12/21/2018] [Indexed: 12/16/2022] Open
Abstract
Milk consumption is a hallmark of western diet. According to common believes, milk consumption has beneficial effects for human health. Pasteurization of cow's milk protects thermolabile vitamins and other organic compounds including bioactive and bioavailable exosomes and extracellular vesicles in the range of 40-120 nm, which are pivotal mediators of cell communication via systemic transfer of specific micro-ribonucleic acids, mRNAs and regulatory proteins such as transforming growth factor-β. There is compelling evidence that human and bovine milk exosomes play a crucial role for adequate metabolic and immunological programming of the newborn infant at the beginning of extrauterine life. Milk exosomes assist in executing an anabolic, growth-promoting and immunological program confined to the postnatal period in all mammals. However, epidemiological and translational evidence presented in this review indicates that continuous exposure of humans to exosomes of pasteurized milk may confer a substantial risk for the development of chronic diseases of civilization including obesity, type 2 diabetes mellitus, osteoporosis, common cancers (prostate, breast, liver, B-cells) as well as Parkinson's disease. Exosomes of pasteurized milk may represent new pathogens that should not reach the human food chain.
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Affiliation(s)
- Bodo C. Melnik
- Department of Dermatology, Environmental Medicine and Health Theory, University of Osnabrück, Am Finkenhügel 7A, 49076 Osnabrück, Germany
| | - Gerd Schmitz
- Institute for Clinical Chemistry and Laboratory Medicine, University Hospital Regensburg, University of Regensburg, Josef-Strauss-Allee 11, 93053 Regensburg, Germany
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22
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Huang D, Cui L, Ahmed S, Zainab F, Wu Q, Wang X, Yuan Z. An overview of epigenetic agents and natural nutrition products targeting DNA methyltransferase, histone deacetylases and microRNAs. Food Chem Toxicol 2019; 123:574-594. [DOI: 10.1016/j.fct.2018.10.052] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Revised: 09/25/2018] [Accepted: 10/22/2018] [Indexed: 02/07/2023]
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23
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Kumar P, Raeman R, Chopyk DM, Smith T, Verma K, Liu Y, Anania FA. Adiponectin inhibits hepatic stellate cell activation by targeting the PTEN/AKT pathway. Biochim Biophys Acta Mol Basis Dis 2018; 1864:3537-3545. [PMID: 30293572 PMCID: PMC6529190 DOI: 10.1016/j.bbadis.2018.08.012] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Revised: 08/05/2018] [Accepted: 08/07/2018] [Indexed: 02/08/2023]
Abstract
Adiponectin inhibits hepatic stellate cell (HSC) activation and subsequent development of liver fibrosis via multiple mechanisms. Phosphatase and tensin homolog deletion 10 (PTEN) plays a crucial role in suppression of HSC activation, but its regulation by adiponectin is not fully understood. Here, we investigated the effect of adiponectin on PTEN in LX-2 cells, a human cell line and examined the underlying molecular mechanisms involved in adiponectin-mediated upregulation of PTEN activity during fibrosis. PTEN expression was found to be significantly reduced in the livers of mice treated with CCl4, whereas its expression was rescued by adiponectin treatment. The DNA methylation proteins DNMT1, DNMT3A, and DNMT3B are all highly expressed in activated primary HSCs compared to quiescent HSCs, and thus represent additional regulatory targets during liver fibrogenesis. Expression of DNMT proteins was significantly induced in the presence of fibrotic stimuli; however, only DNMT3B expression was reduced in the presence of adiponectin. Adiponectin-induced suppression of DNMT3B was found to be mediated by enhanced miR-29b expression. Furthermore, PTEN expression was significantly increased by overexpression of miR-29b, whereas its expression was markedly reduced by a miR-29b inhibitor in LX-2 cells. These findings suggest that adiponectin-induced upregulation of miR-29b can suppress DNMT3B transcription in LX-2 cells, thus resulting in reduced methylation of PTEN CpG islands and ultimately suppressing the PI3K/AKT pathway. Together, these data suggest a possible new explanation for the inhibitory effect of adiponectin on HSC activation and liver fibrogenesis.
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Affiliation(s)
- Pradeep Kumar
- Division of Digestive Diseases, Department of Medicine, Emory University, Atlanta, GA, USA.
| | - Reben Raeman
- Department of Pathology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Daniel M Chopyk
- Division of Digestive Diseases, Department of Medicine, Emory University, Atlanta, GA, USA
| | - Tekla Smith
- Division of Digestive Diseases, Department of Medicine, Emory University, Atlanta, GA, USA
| | - Kiran Verma
- Labratory of Biochemical Pharmacology, Department of Pediatrics, Emory University, Atlanta, GA, USA
| | - Yunshan Liu
- Division of Digestive Diseases, Department of Medicine, Emory University, Atlanta, GA, USA
| | - Frank A Anania
- Division of Digestive Diseases, Department of Medicine, Emory University, Atlanta, GA, USA
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