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Lu Y, Yang Z, Zhang J, Ma X, Bi X, Xu L, Feng K, Wu Z, Ma X, Zhuang L. RNA-binding protein QKI promotes the progression of HCC by interacting with long non-coding RNA EGOT. Int Immunopharmacol 2024; 136:112297. [PMID: 38810307 DOI: 10.1016/j.intimp.2024.112297] [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] [Received: 02/11/2024] [Revised: 05/10/2024] [Accepted: 05/16/2024] [Indexed: 05/31/2024]
Abstract
BACKGROUND RNA-binding proteins are revealed to play important roles during the progression of hepatocellular carcinoma (HCC). However, the regulatory mechanisms of RNA-binding protein Quaking (QKI) in the expression and role of long non-coding RNAs (lncRNAs) in HCC cells remain not well understood. METHODS Cell Counting Kit-8, wound-healing, Transwell and colony-forming assays were performed to evaluate the effects of QKI and lncRNA EGOT on proliferation and migration of HCC cells. Tumor growth of HCC was analyzed using a mouse xenograft model. Immunoprecipitation (RIP) assay was used to investigate the interaction between QKI and EGOT. RESULTS The expression of QKI was significantly upregulated in HCC tissues and the higher QKI level was significantly associated with a poorer prognosis. Overexpression of QKI promoted the proliferation, migration, and colony-forming ability of HCC cells in vitro and tumor growth of HCC in vivo. Mechanistically, QKI protein could bind to EGOT RNA and increase its expression. Inhibition of EGOT attenuated the effects of QKI on the malignant phenotypes of HCC cells. In addition, both QKI and EGOT could activate the SAPK/JNK signaling pathway in HCC cells. CONCLUSIONS Our findings indicated that QKI exerted promotive effects on the malignant phenotypes of HCC through its interaction with EGOT.
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Affiliation(s)
- Yi Lu
- Central Laboratory, Qingdao Municipal Hospital, Qingdao University, Qingdao 266071, China
| | - Zhenpeng Yang
- Department of Hepatobiliary and Pancreatic Surgery, The Affiliated Hospital of Qingdao University, Qingdao 266071, China
| | - Jie Zhang
- Central Laboratory, Qingdao Municipal Hospital, Qingdao University, Qingdao 266071, China
| | - Xuefeng Ma
- Central Laboratory, Qingdao Municipal Hospital, Qingdao University, Qingdao 266071, China
| | - Xiaoye Bi
- Central Laboratory, Qingdao Municipal Hospital, Qingdao University, Qingdao 266071, China
| | - Longhai Xu
- Central Laboratory, Qingdao Municipal Hospital, Qingdao University, Qingdao 266071, China
| | - Keqing Feng
- Central Laboratory, Qingdao Municipal Hospital, Qingdao University, Qingdao 266071, China
| | - Zehua Wu
- Department of Hepatobiliary and Pancreatic Surgery, The Affiliated Hospital of Qingdao University, Qingdao 266071, China
| | - Xiang Ma
- Department of Hepatobiliary and Pancreatic Surgery, The Affiliated Hospital of Qingdao University, Qingdao 266071, China.
| | - Likun Zhuang
- Central Laboratory, Qingdao Municipal Hospital, Qingdao University, Qingdao 266071, China.
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2
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Haga Y, Bandyopadhyay D, Khatun M, Tran E, Steele R, Banerjee S, Ray R, Nazzal M, Ray RB. Increased expression of long non-coding RNA FIRRE promotes hepatocellular carcinoma by HuR-CyclinD1 axis signaling. J Biol Chem 2024; 300:107247. [PMID: 38556083 PMCID: PMC11061211 DOI: 10.1016/j.jbc.2024.107247] [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] [Received: 02/28/2024] [Accepted: 03/21/2024] [Indexed: 04/02/2024] Open
Abstract
There is a critical need to understand the disease processes and identify improved therapeutic strategies for hepatocellular carcinoma (HCC). The long noncoding RNAs (lncRNAs) display diverse effects on biological regulations. The aim of this study was to identify a lncRNA as a potential biomarker of HCC and investigate the mechanisms by which the lncRNA promotes HCC progression using human cell lines and in vivo. Using RNA-Seq analysis, we found that lncRNA FIRRE was significantly upregulated in hepatitis C virus (HCV) associated liver tissue and identified that lncRNA FIRRE is significantly upregulated in HCV-associated HCC compared to adjacent non-tumor liver tissue. Further, we observed that FIRRE is significantly upregulated in HCC specimens with other etiologies, suggesting this lncRNA has the potential to serve as an additional biomarker for HCC. Overexpression of FIRRE in hepatocytes induced cell proliferation, colony formation, and xenograft tumor formation as compared to vector-transfected control cells. Using RNA pull-down proteomics, we identified HuR as an interacting partner of FIRRE. We further showed that the FIRRE-HuR axis regulates cyclin D1 expression. Our mechanistic investigation uncovered that FIRRE is associated with an RNA-binding protein HuR for enhancing hepatocyte growth. Together, these findings provide molecular insights into the role of FIRRE in HCC progression.
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MESH Headings
- Animals
- Humans
- Mice
- Carcinoma, Hepatocellular/genetics
- Carcinoma, Hepatocellular/metabolism
- Carcinoma, Hepatocellular/pathology
- Carcinoma, Hepatocellular/virology
- Cell Line, Tumor
- Cell Proliferation
- Cyclin D1/metabolism
- Cyclin D1/genetics
- ELAV-Like Protein 1/metabolism
- ELAV-Like Protein 1/genetics
- Gene Expression Regulation, Neoplastic
- Liver Neoplasms/genetics
- Liver Neoplasms/metabolism
- Liver Neoplasms/pathology
- Liver Neoplasms/virology
- Mice, Nude
- RNA, Long Noncoding/genetics
- RNA, Long Noncoding/metabolism
- Signal Transduction/genetics
- Hepatitis C/complications
- Up-Regulation
- Biomarkers, Tumor
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Affiliation(s)
- Yuki Haga
- Department of Internal Medicine, Saint Louis University, St. Louis, Missouri, USA
| | | | - Mousumi Khatun
- Department of Pathology, Saint Louis University, St. Louis, Missouri, USA
| | - Ellen Tran
- Department of Pathology, Saint Louis University, St. Louis, Missouri, USA
| | - Robert Steele
- Department of Pathology, Saint Louis University, St. Louis, Missouri, USA
| | - Sumona Banerjee
- Department of Pathology, Saint Louis University, St. Louis, Missouri, USA
| | - Ranjit Ray
- Department of Internal Medicine, Saint Louis University, St. Louis, Missouri, USA
| | - Mustafa Nazzal
- Department of Surgery, Saint Louis University, St. Louis, Missouri, USA
| | - Ratna B Ray
- Department of Pathology, Saint Louis University, St. Louis, Missouri, USA.
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3
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Gajos-Michniewicz A, Czyz M. WNT/β-catenin signaling in hepatocellular carcinoma: The aberrant activation, pathogenic roles, and therapeutic opportunities. Genes Dis 2024; 11:727-746. [PMID: 37692481 PMCID: PMC10491942 DOI: 10.1016/j.gendis.2023.02.050] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 12/28/2022] [Accepted: 02/14/2023] [Indexed: 09/12/2023] Open
Abstract
Hepatocellular carcinoma (HCC) is a liver cancer, highly heterogeneous both at the histopathological and molecular levels. It arises from hepatocytes as the result of the accumulation of numerous genomic alterations in various signaling pathways, including canonical WNT/β-catenin, AKT/mTOR, MAPK pathways as well as signaling associated with telomere maintenance, p53/cell cycle regulation, epigenetic modifiers, and oxidative stress. The role of WNT/β-catenin signaling in liver homeostasis and regeneration is well established, whereas in development and progression of HCC is extensively studied. Herein, we review recent advances in our understanding of how WNT/β-catenin signaling facilitates the HCC development, acquisition of stemness features, metastasis, and resistance to treatment. We outline genetic and epigenetic alterations that lead to activated WNT/β-catenin signaling in HCC. We discuss the pivotal roles of CTNNB1 mutations, aberrantly expressed non-coding RNAs and complexity of crosstalk between WNT/β-catenin signaling and other signaling pathways as challenging or advantageous aspects of therapy development and molecular stratification of HCC patients for treatment.
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Affiliation(s)
- Anna Gajos-Michniewicz
- Department of Molecular Biology of Cancer, Medical University of Lodz, Lodz 92-215, Poland
| | - Malgorzata Czyz
- Department of Molecular Biology of Cancer, Medical University of Lodz, Lodz 92-215, Poland
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4
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Caliskan A, Caliskan D, Rasbach L, Yu W, Dandekar T, Breitenbach T. Optimized cell type signatures revealed from single-cell data by combining principal feature analysis, mutual information, and machine learning. Comput Struct Biotechnol J 2023; 21:3293-3314. [PMID: 37333862 PMCID: PMC10276237 DOI: 10.1016/j.csbj.2023.06.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Revised: 06/02/2023] [Accepted: 06/02/2023] [Indexed: 06/20/2023] Open
Abstract
Machine learning techniques are excellent to analyze expression data from single cells. These techniques impact all fields ranging from cell annotation and clustering to signature identification. The presented framework evaluates gene selection sets how far they optimally separate defined phenotypes or cell groups. This innovation overcomes the present limitation to objectively and correctly identify a small gene set of high information content regarding separating phenotypes for which corresponding code scripts are provided. The small but meaningful subset of the original genes (or feature space) facilitates human interpretability of the differences of the phenotypes including those found by machine learning results and may even turn correlations between genes and phenotypes into a causal explanation. For the feature selection task, the principal feature analysis is utilized which reduces redundant information while selecting genes that carry the information for separating the phenotypes. In this context, the presented framework shows explainability of unsupervised learning as it reveals cell-type specific signatures. Apart from a Seurat preprocessing tool and the PFA script, the pipeline uses mutual information to balance accuracy and size of the gene set if desired. A validation part to evaluate the gene selection for their information content regarding the separation of the phenotypes is provided as well, binary and multiclass classification of 3 or 4 groups are studied. Results from different single-cell data are presented. In each, only about ten out of more than 30000 genes are identified as carrying the relevant information. The code is provided in a GitHub repository at https://github.com/AC-PHD/Seurat_PFA_pipeline.
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5
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Tang Y, Zhang H, Chen L, Zhang T, Xu N, Huang Z. Identification of Hypoxia-Related Prognostic Signature and Competing Endogenous RNA Regulatory Axes in Hepatocellular Carcinoma. Int J Mol Sci 2022; 23:13590. [PMID: 36362375 PMCID: PMC9658439 DOI: 10.3390/ijms232113590] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 10/24/2022] [Accepted: 10/27/2022] [Indexed: 11/27/2023] Open
Abstract
Hepatocellular carcinoma (HCC) is a common type of liver cancer and one of the highly lethal diseases worldwide. Hypoxia plays an important role in the development and prognosis of HCC. This study aimed to construct a new hypoxia-related prognosis signature and investigate its potential ceRNA axes in HCC. RNA profiles and hypoxia genes were downloaded, respectively, from the Cancer Genome Atlas hepatocellular carcinoma database and Gene Set Enrichment Analysis website. Cox regression analyses were performed to select the prognostic genes and construct the risk model. The ENCORI database was applied to build the lncRNA-miRNA-mRNA prognosis-related network. The TIMER and CellMiner databases were employed to analyze the association of gene expression in ceRNA with immune infiltration and drug sensitivity, respectively. Finally, the co-expression analysis was carried out to construct the potential lncRNA/miRNA/mRNA regulatory axes. We obtained a prognostic signature including eight hypoxia genes (ENO2, KDELR3, PFKP, SLC2A1, PGF, PPFIA4, SAP30, and TKTL1) and further established a hypoxia-related prognostic ceRNA network including 17 lncRNAs, six miRNAs, and seven mRNAs for hepatocellular carcinoma. Then, the analysis of immune infiltration and drug sensitivity showed that gene expression in the ceRNA network was significantly correlated with the infiltration abundance of multiple immune cells, the expression level of immune checkpoints, and drug sensitivity. Finally, we identified three ceRNA regulatory axes (SNHG1/miR-101-3p/PPFIA4, SNHG1/miR-101-3p/SAP30, and SNHG1/miR-101-3p/TKTL1) associated with the progression of HCC under hypoxia. Here, we constructed a prognosis gene signature and a ceRNA network related to hypoxia for hepatocellular carcinoma. Among the ceRNA network, six highly expressed lncRNAs (AC005540.1, AC012146.1, AC073529.1, AC090772.3, AC138150.2, AL390728.6) and one highly expressed mRNA (PPFIA4) were the potential biomarkers of hepatocellular carcinoma which we firstly reported. The three predicted hypoxia-related regulatory axes may play a vital role in the progression of hepatocellular carcinoma.
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Affiliation(s)
- Yulai Tang
- The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan 523710, China
- The First Clinical Medical College, Guangdong Medical University, Dongguan 523808, China
| | - Hua Zhang
- The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan 523710, China
- Key Laboratory of Big Data Mining and Precision Drug Design of Guangdong Medical University, Key Laboratory of Computer-Aided Drug Design of Dongguan City, Key Laboratory for Research and Development of Natural Drugs of Guangdong Province, Guangdong Medical University, Dongguan 523808, China
| | - Lingli Chen
- The First Clinical Medical College, Guangdong Medical University, Dongguan 523808, China
| | - Taomin Zhang
- Key Laboratory of Big Data Mining and Precision Drug Design of Guangdong Medical University, Key Laboratory of Computer-Aided Drug Design of Dongguan City, Key Laboratory for Research and Development of Natural Drugs of Guangdong Province, Guangdong Medical University, Dongguan 523808, China
| | - Na Xu
- Key Laboratory of Big Data Mining and Precision Drug Design of Guangdong Medical University, Key Laboratory of Computer-Aided Drug Design of Dongguan City, Key Laboratory for Research and Development of Natural Drugs of Guangdong Province, Guangdong Medical University, Dongguan 523808, China
| | - Zunnan Huang
- The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan 523710, China
- Key Laboratory of Big Data Mining and Precision Drug Design of Guangdong Medical University, Key Laboratory of Computer-Aided Drug Design of Dongguan City, Key Laboratory for Research and Development of Natural Drugs of Guangdong Province, Guangdong Medical University, Dongguan 523808, China
- Marine Medical Research Institute of Guangdong Zhanjiang, Zhanjiang 524023, China
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6
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Guo J, Yuan Q, Fang Y, Liao J, Zhang Z. Long non-coding RNA NEAT1 promotes angiogenesis in hepatoma carcinoma via the miR-125a-5p/VEGF pathway. Open Life Sci 2022; 17:1229-1239. [PMID: 36213383 PMCID: PMC9490857 DOI: 10.1515/biol-2022-0498] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 05/17/2022] [Accepted: 08/16/2022] [Indexed: 11/30/2022] Open
Abstract
The study’s purpose was to investigate the biological function of long non-coding RNA nuclear paraspeckle assembly transcript 1 (NEAT1) in hepatoma carcinoma (HCC). HCC tissues and cells exhibited increased levels of NEAT1 and decreased levels of miR-125a-5p. Reduction in the expression of NEAT suppressed HepG2 cell proliferation and increased apoptosis. This was accompanied by suppression of the AKT/mTOR and ERK pathways, while the opposite was observed for miR-125a-5p. Angiogenesis assay results indicated that NEAT was proangiogenic. A dual-luciferase reporter assay indicated that NEAT1 was bound to miR-125a-5p and miR-125a-5p was bound to vascular endothelial growth factor (VEGF). The proangiogenic effects of NEAT and its stimulation of AKT/mTOR and ERK were reversed by miR-125a-5p. The anti-angiogenic effects of miR-125a-5p and its inhibitory effect on AKT/mTOR and ERK pathways were reversed by co-incubation with VEGF. The conclusion was that NEAT1 enhances angiogenesis in HCC by VEGF via a competing endogenous RNA (ceRNA) of miR-125a-5p that regulates AKT/mTOR and ERK pathways.
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Affiliation(s)
- Jingyun Guo
- Department of Hepatopathy, The Hunan Provincial People’s Hospital, The First Affiliated Hospital of Hunan Normal University, No. 61, Jiefang Road West, Changsha, Hunan, 410005, China
| | - Qi Yuan
- Department of Hepatopathy, The Hunan Provincial People’s Hospital, The First Affiliated Hospital of Hunan Normal University, No. 61, Jiefang Road West, Changsha, Hunan, 410005, China
| | - Yuan Fang
- Department of Hepatopathy, The Hunan Provincial People’s Hospital, The First Affiliated Hospital of Hunan Normal University, No. 61, Jiefang Road West, Changsha, Hunan, 410005, China
| | - Jinmao Liao
- Department of Hepatopathy, The Hunan Provincial People’s Hospital, The First Affiliated Hospital of Hunan Normal University, No. 61, Jiefang Road West, Changsha, Hunan, 410005, China
| | - Zheng Zhang
- Department of Hepatopathy, The Hunan Provincial People’s Hospital, The First Affiliated Hospital of Hunan Normal University, No. 61, Jiefang Road West, Changsha, Hunan, 410005, China
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7
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Khan A, Zhang X. Function of the Long Noncoding RNAs in Hepatocellular Carcinoma: Classification, Molecular Mechanisms, and Significant Therapeutic Potentials. Bioengineering (Basel) 2022; 9:406. [PMID: 36004931 PMCID: PMC9405066 DOI: 10.3390/bioengineering9080406] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Revised: 08/15/2022] [Accepted: 08/16/2022] [Indexed: 12/24/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is the most common and serious type of primary liver cancer. HCC patients have a high death rate and poor prognosis due to the lack of clear signs and inadequate treatment interventions. However, the molecular pathways that underpin HCC pathogenesis remain unclear. Long non-coding RNAs (lncRNAs), a new type of RNAs, have been found to play important roles in HCC. LncRNAs have the ability to influence gene expression and protein activity. Dysregulation of lncRNAs has been linked to a growing number of liver disorders, including HCC. As a result, improved understanding of lncRNAs could lead to new insights into HCC etiology, as well as new approaches for the early detection and treatment of HCC. The latest results with respect to the role of lncRNAs in controlling multiple pathways of HCC were summarized in this study. The processes by which lncRNAs influence HCC advancement by interacting with chromatin, RNAs, and proteins at the epigenetic, transcriptional, and post-transcriptional levels were examined. This critical review also highlights recent breakthroughs in lncRNA signaling pathways in HCC progression, shedding light on the potential applications of lncRNAs for HCC diagnosis and therapy.
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Affiliation(s)
| | - Xiaobo Zhang
- College of Life Sciences, Zhejiang University, Hangzhou 310058, China
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8
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Braghini MR, Lo Re O, Romito I, Fernandez-Barrena MG, Barbaro B, Pomella S, Rota R, Vinciguerra M, Avila MA, Alisi A. Epigenetic remodelling in human hepatocellular carcinoma. J Exp Clin Cancer Res 2022; 41:107. [PMID: 35331312 PMCID: PMC8943959 DOI: 10.1186/s13046-022-02297-2] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Accepted: 02/19/2022] [Indexed: 04/13/2023] Open
Abstract
Hepatocellular carcinoma (HCC) is the most frequent primary liver cancer, being the sixth most commonly diagnosed cancer and the fourth leading cause of cancer-related death. As other heterogeneous solid tumours, HCC results from a unique synergistic combination of genetic alterations mixed with epigenetic modifications.In HCC the patterns and frequencies of somatic variations change depending on the nearby chromatin. On the other hand, epigenetic alterations often induce genomic instability prone to mutations. Epigenetics refers to heritable states of gene expression without alteration to the DNA sequence itself and, unlike genetic changes, the epigenetic modifications are reversible and affect gene expression more extensively than genetic changes. Thus, studies of epigenetic regulation and the involved molecular machinery are greatly contributing to the understanding of the mechanisms that underline HCC onset and heterogeneity. Moreover, this knowledge may help to identify biomarkers for HCC diagnosis and prognosis, as well as future new targets for more efficacious therapeutic approaches.In this comprehensive review we will discuss the state-of-the-art knowledge about the epigenetic landscape in hepatocarcinogenesis, including evidence on the diagnostic and prognostic role of non-coding RNAs, modifications occurring at the chromatin level, and their role in the era of precision medicine.Apart from other better-known risk factors that predispose to the development of HCC, characterization of the epigenetic remodelling that occurs during hepatocarcinogenesis could open the way to the identification of personalized biomarkers. It may also enable a more accurate diagnosis and stratification of patients, and the discovery of new targets for more efficient therapeutic approaches.
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Affiliation(s)
- Maria Rita Braghini
- Unit of Molecular Genetics of Complex Phenotypes, Bambino Gesù Children's Hospital, IRCCS, Viale S. Paolo, 15, 00146, Rome, Italy
| | - Oriana Lo Re
- Department of Translational Stem Cell Biology, Research Institute of the Medical University of Varna, Varna, Bulgaria
| | - Ilaria Romito
- Unit of Molecular Genetics of Complex Phenotypes, Bambino Gesù Children's Hospital, IRCCS, Viale S. Paolo, 15, 00146, Rome, Italy
| | - Maite G Fernandez-Barrena
- Hepatology Program, CIMA, University of Navarra, Pamplona, Spain
- Center for the Study of Liver and Gastrointestinal Diseases (CIBERehd), Carlos III National Institute of Health, Madrid, Spain
| | - Barbara Barbaro
- Unit of Molecular Genetics of Complex Phenotypes, Bambino Gesù Children's Hospital, IRCCS, Viale S. Paolo, 15, 00146, Rome, Italy
| | - Silvia Pomella
- Department of Paediatric Haematology/Oncology and Cellular and Gene Therapy, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Rossella Rota
- Department of Paediatric Haematology/Oncology and Cellular and Gene Therapy, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Manlio Vinciguerra
- Department of Translational Stem Cell Biology, Research Institute of the Medical University of Varna, Varna, Bulgaria
| | - Matias A Avila
- Hepatology Program, CIMA, University of Navarra, Pamplona, Spain
- Center for the Study of Liver and Gastrointestinal Diseases (CIBERehd), Carlos III National Institute of Health, Madrid, Spain
| | - Anna Alisi
- Unit of Molecular Genetics of Complex Phenotypes, Bambino Gesù Children's Hospital, IRCCS, Viale S. Paolo, 15, 00146, Rome, Italy.
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