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Wang CY, Yu F, Jin JY, He JQ, Fan LL, Tang JY, Xiang R. Identification of Two Novel Frameshift Mutations in Exostosin 1 in Two Families with Multiple Osteochondromas. Mol Syndromol 2021; 12:96-100. [PMID: 34012378 DOI: 10.1159/000512856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Accepted: 11/05/2020] [Indexed: 11/19/2022] Open
Abstract
Multiple osteochondromas (MO) is an autosomal dominant hereditary disorder, which typically manifests as skeletal dysplasia, mainly involving long bones and knees, ankles, elbows, wrists, shoulders, and pelvis. Previous studies have demonstrated that mutations in exostosin glycosyl transferase-1 (EXT1) and exostosin glycosyl transferase-2 (EXT2) were the main cause of MO. In this study, we enrolled 2 families with MO. Sanger sequencing revealed 2 novel frameshift mutations - c.1432_1433insCCCCCCT; p.Lys479Profs*44 and c.1431_1431delC; p.S478PfsX10 - in the EXT1 gene detected in 2 families, respectively. Both novel mutations, located in the conserved domain of EXT1 and predicted to be disease causing by informatics programs, were absent in our 200 control cohorts and other public databases. Our study expanded the spectrum of EXT1 mutations and contributed to genetic diagnosis and counseling of patients with MO.
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Affiliation(s)
- Chen-Yu Wang
- Department of Cell Biology, School of Life Sciences, Central South University, Changsha, China.,Department of Orthopedics, Xiangya Hospital of Central South University, Changsha, China.,Hunan Key Laboratory of Animal Models for Human Diseases, School of Life Sciences, Central South University, Changsha, China
| | - Fang Yu
- Department of Orthopedics, Xiangya Hospital of Central South University, Changsha, China
| | - Jie-Yuan Jin
- Department of Cell Biology, School of Life Sciences, Central South University, Changsha, China
| | - Ji-Qiang He
- Department of Orthopedics, Xiangya Hospital of Central South University, Changsha, China
| | - Liang-Liang Fan
- Department of Cell Biology, School of Life Sciences, Central South University, Changsha, China.,Hunan Key Laboratory of Animal Models for Human Diseases, School of Life Sciences, Central South University, Changsha, China
| | - Ju-Yu Tang
- Department of Orthopedics, Xiangya Hospital of Central South University, Changsha, China
| | - Rong Xiang
- Department of Cell Biology, School of Life Sciences, Central South University, Changsha, China.,Department of Orthopedics, Xiangya Hospital of Central South University, Changsha, China.,Hunan Key Laboratory of Animal Models for Human Diseases, School of Life Sciences, Central South University, Changsha, China
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Wu D, Huo C, Jiang S, Huang Y, Fang X, Liu J, Yang M, Ren J, Xu B, Liu Y. Exostosin1 as a novel prognostic and predictive biomarker for squamous cell lung carcinoma: A study based on bioinformatics analysis. Cancer Med 2020; 10:2787-2801. [PMID: 33314711 PMCID: PMC8026939 DOI: 10.1002/cam4.3643] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Revised: 11/04/2020] [Accepted: 11/08/2020] [Indexed: 12/13/2022] Open
Abstract
The exostosin (EXT) protein family is involved in diverse human diseases. However, the expression and prognostic value of EXT genes in human lung squamous cell carcinoma (LUSC) is not well understood. In this study, we analyzed the association between expression of EXT1 and EXT2 genes and survival in patients with LUSC using bioinformatics resources such as Oncomine and The Cancer Genome Atlas (TCGA) databases, the Gene Expression Profiling Interactive Analysis (GEPIA) server and Kaplan–Meier plotter. Furthermore, regulatory microRNAs (miRNAs) were predicted for EXT1 and used to establish a potential miRNA‐messenger RNA (mRNA) regulation network for LUSC using the ENCORI platform. We observed that EXT1 and EXT2 expression levels were higher in LUSC than those in normal tissues. However, only EXT1 expression was significantly associated with poor overall survival (OS) in LUSC patients. Functional annotation enrichment analysis showed that genes co‐expressed with the EXT1 gene were enriched in biological processes such as cell adhesion and migration, and KEGG pathways such as extracellular matrix receptor interactions, complement and coagulation cascades, and cell death. Furthermore, three miRNAs, hsa‐mir‐190a‐5p, hsa‐mir‐195‐5p, and hsa‐mir‐490‐3p, were identified to be potentially involved in the regulation of EXT1. In summary, we identified EXT1 expression as a novel potential prognostic marker for human LUSC and the regulatory miRNAs that could possibly contribute to the prognosis of the disease.
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Affiliation(s)
- Disheng Wu
- Guangdong Key Laboratory for Research and Development of Natural Drugs, Department of Pharmacology, Marine Medicine Research Institute, Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Chao Huo
- Guangdong Key Laboratory for Research and Development of Natural Drugs, Department of Pharmacology, Marine Medicine Research Institute, Guangdong Medical University, Zhanjiang, Guangdong, China.,Department of Anus and Intestines, Shenzhen Nanshan District People's Hospital, Shenzhen, Guangdong, China
| | - Siyu Jiang
- Guangdong Key Laboratory for Research and Development of Natural Drugs, Department of Pharmacology, Marine Medicine Research Institute, Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Yanxia Huang
- Department of Pharmacy, The Third People's Hospital of Shantou, Shantou, Guangdong, China
| | - Xuehong Fang
- Guangdong Key Laboratory for Research and Development of Natural Drugs, Department of Pharmacology, Marine Medicine Research Institute, Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Jun Liu
- Shenzhen Ritzcon Biological Technology Co., Ltd., Shenzhen, Guangdong, China
| | - Min Yang
- Shenzhen Ritzcon Biological Technology Co., Ltd., Shenzhen, Guangdong, China
| | - Jianwei Ren
- Shenzhen Ritzcon Biological Technology Co., Ltd., Shenzhen, Guangdong, China
| | - Bilian Xu
- Department of Pharmacology, Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Yi Liu
- Guangdong Key Laboratory for Research and Development of Natural Drugs, Department of Pharmacology, Marine Medicine Research Institute, Guangdong Medical University, Zhanjiang, Guangdong, China
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