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Zhang R, Cui D, Song C, Ma X, Cai N, Zhang Y, Feng M, Cao Y, Chen L, Qiang R. Evaluating the efficacy of a long-read sequencing-based approach in the clinical diagnosis of neonatal congenital adrenocortical hyperplasia. Clin Chim Acta 2024; 555:117820. [PMID: 38307397 DOI: 10.1016/j.cca.2024.117820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 01/22/2024] [Accepted: 01/29/2024] [Indexed: 02/04/2024]
Abstract
Congenital adrenal hyperplasia (CAH) is a group of autosomal recessive disorders predominantly characterized by impaired corticosteroid synthesis. Clinical phenotypes include hypoadrenocorticism, electrolyte disturbances, abnormal gonadal development, and short stature, of which severe hyponadrenocorticism and salt wasting can be life-threatening. Genetic analysis can help in the clinical diagnosis of CAH. However, the 21-OHD-causing gene CYP21A2 is arranged in tandem with the highly homologous CYP21A1P pseudogene, making it difficult to determine the exact genotypes using the traditional method of multiplex ligation-dependent probe amplification (MLPA) plus Sanger sequencing or next-generation sequencing (NGS). We applied a long-read sequencing-based approach termed comprehensive analysis of CAH (CACAH) to 48 newborns with CAH that were diagnosed by clinical features and the traditional MLPA plus Sanger sequencing method for retrospective analysis, to evaluate its efficacy in the clinical diagnosis of neonatal CAH. Compared with the MLPA plus Sanger sequencing method, CACAH showed 100 % consistency in detecting SNV/indel variants located in exons and exon-intron boundary regions of CAH-related genes. It can directly determine the cis-trans relationship without the need to analyze parental genotypes, which reduces the time to diagnosis. Moreover, CACAH was able to distinguish different CYP21A1P/CYP21A2 and TNXA/TNXB chimeras, and detect additional variants (CYP21A2 variants c.-121C > T, c.*13G > A, c.*52C > T, c.*440C > T, c.*443 T > C, and TNXB variants c.12463 + 2 T > C, c.12204 + 5G > A). We also identified the TNXB variant c.11435_11524 + 30del alone instead of as a part of the TNXA/TNXB-CH-1 chimera in two newborns, which might be introduced by gene conversion. All of these characteristics enabled clinicians to better explain the phenotype of subjects and manage them more effectively. CACAH has a great advantage over the traditional MLPA and Sanger sequencing methods, showing substantial potential in the genetic diagnosis and screening of neonatal CAH.
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Affiliation(s)
- Ruixue Zhang
- Center of Neonatal Disease Screening, Department of Clinical Genetics, Northwest Women's and Children's Hospital, China
| | - Di Cui
- Berry Genomics Corporation, Beijing 102200, China
| | - Chengrong Song
- Center of Neonatal Disease Screening, Department of Clinical Genetics, Northwest Women's and Children's Hospital, China
| | - Xiaoping Ma
- Center of Neonatal Disease Screening, Department of Clinical Genetics, Northwest Women's and Children's Hospital, China
| | - Na Cai
- Center of Neonatal Disease Screening, Department of Clinical Genetics, Northwest Women's and Children's Hospital, China
| | - Yan Zhang
- Center of Neonatal Disease Screening, Department of Clinical Genetics, Northwest Women's and Children's Hospital, China
| | - Mei Feng
- Center of Neonatal Disease Screening, Department of Clinical Genetics, Northwest Women's and Children's Hospital, China
| | - Yanlin Cao
- Berry Genomics Corporation, Beijing 102200, China
| | - Libao Chen
- Berry Genomics Corporation, Beijing 102200, China
| | - Rong Qiang
- Center of Neonatal Disease Screening, Department of Clinical Genetics, Northwest Women's and Children's Hospital, China.
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Liang L, Wu H, Meng H, Fu L, Zhao J. Case report: A novel compound heterozygous variant in the TNXB gene causes single kidney agenesis and vesicoureteral reflux. Front Endocrinol (Lausanne) 2024; 15:1322395. [PMID: 38370350 PMCID: PMC10869528 DOI: 10.3389/fendo.2024.1322395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Accepted: 01/10/2024] [Indexed: 02/20/2024] Open
Abstract
Primary vesicoureteral reflux (VUR) is the prevailing congenital anomaly of the kidneys and urinary tract, posing a significant risk for pyelonephritis scarring and chronic renal insufficiency in pediatric patients. Nevertheless, the precise genetic etiology of VUR remains enigmatic. In this current investigation, we conducted whole-exome sequencing on a child exhibiting single kidney, devoid of any familial VUR background, along with both biological parents. Two missense variants (NM_019105.8: exon11: c.4111G>A and NM_019105.8: exon2: c.31A>T) in the TNXB gene were identified through whole-exome sequencing of the child. These variants were found to be inherited from the child's parents, with each parent carrying one of the variants. Molecular dynamics simulations were conducted to assess the impact of these variants on the tenascin XB proteins encoded by them, revealing varying degrees of impairment. Based on our findings, it is suggested that the TNXB compound heterozygous variant, consisting of c.4111G>A and c.31A>T, may be the underlying cause of right renal agenesis and left hydronephrosis in afflicted child. This discovery broadens the genetic range of the TNXB gene and establishes a genetic foundation for disease-specific preimplantation genetic diagnosis (PGD) in prospective pregnancies involving the parents of this afflicted child.
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Affiliation(s)
- Lei Liang
- Center for Prenatal Diagnosis and Medical Genetics, Affiliated Hospital of Inner Mongolia Medical University, Hohhot, China
| | - Haotian Wu
- School of Public Health, Inner Mongolia Medical University, Hohhot, China
| | - Haixia Meng
- Center for Prenatal Diagnosis and Medical Genetics, Affiliated Hospital of Inner Mongolia Medical University, Hohhot, China
| | - Lin Fu
- Department of Ultrasound, Affiliated Hospital of Inner Mongolia Medical University, Hohhot, China
| | - Jianrong Zhao
- Department of Nephrology, Affiliated Hospital of Inner Mongolia Medical University, Hohhot, China
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Yamaguchi T, Yamada K, Nagai S, Nishikubo T, Koitabashi N, Minami-Hori M, Matsushima M, Shibata Y, Ishiguro H, Sanai H, Fujikawa T, Takiguchi Y, Matsumoto KI, Kosho T. Clinical and molecular delineation of classical-like Ehlers-Danlos syndrome through a comprehensive next-generation sequencing-based screening system. Front Genet 2023; 14:1234804. [PMID: 37712068 PMCID: PMC10498456 DOI: 10.3389/fgene.2023.1234804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 07/24/2023] [Indexed: 09/16/2023] Open
Abstract
Classical-like Ehlers-Danlos syndrome (clEDS) is an autosomal recessive disorder caused by complete absence of tenascin-X resulting from biallelic variation in TNXB. Thus far, 50 patients from 43 families with biallelic TNXB variants have been identified. Accurate detection of TNXB variants is challenging because of the presence of the pseudogene TNXA, which can undergo non-allelic homologous recombination. Therefore, we designed a genetic screening system that is performed using similar operations to other next-generation sequencing (NGS) panel analyses and can be applied to accurately detect TNXB variants and the recombination of TNXA-derived sequences into TNXB. Using this system, we identified biallelic TNXB variants in nine unrelated clEDS patients. TNXA-derived variations were found in >75% of the current cohort, comparable to previous reports. The current cohort generally exhibited similar clinical features to patients in previous reports, but had a higher frequency of gastrointestinal complications (e.g., perforation, diverticulitis, gastrointestinal bleeding, intestinal obstruction, rectal/anal prolapse, and gallstones). This report is the first to apply an NGS-based screening for TNXB variants and represents the third largest cohort of clEDS, highlighting the importance of increasing awareness of the risk of gastrointestinal complications.
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Affiliation(s)
- Tomomi Yamaguchi
- Center for Medical Genetics, Shinshu University Hospital, Matsumoto, Japan
- Department of Medical Genetics, Shinshu University School of Medicine, Matsumoto, Japan
- Division of Clinical Sequencing, Shinshu University School of Medicine, Matsumoto, Japan
| | - Kazuo Yamada
- Department of Biosignaling and Radioisotope Experiment, Interdisciplinary Center for Science Research, Head Office for Research and Academic Information, Shimane University, Izumo, Japan
- Department of Legal Medicine, Faculty of Medicine, Shimane University, Izumo, Japan
| | - So Nagai
- Center for Medical Genetics, Shinshu University Hospital, Matsumoto, Japan
- Division of Clinical Sequencing, Shinshu University School of Medicine, Matsumoto, Japan
- Problem-Solving Oriented Training Program for Advanced Medical Personnel: NGSD (Next-Generation Super Doctor) Project, Matsumoto, Japan
| | - Toshiya Nishikubo
- Division of Neonatal Intensive Care, Nara Medical University, Nara, Japan
| | - Norimichi Koitabashi
- Department of Cardiovascular Medicine, Gunma University Graduate School of Medicine, Maebashi, Japan
| | | | - Masaaki Matsushima
- Department of Neurology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
- Division of Clinical Genetics, Hokkaido University Hospital, Sapporo, Japan
| | - Yuka Shibata
- Division of Clinical Genetics, Hokkaido University Hospital, Sapporo, Japan
| | - Hiroki Ishiguro
- Department of Clinical Genetics, Graduate School of Medicine, University of Yamanashi, Chuo, Japan
| | - Hiromi Sanai
- Department of Obstetrics and Gynecology, Yamaguchi Prefectural Grand Medical Center, Yamaguchi, Japan
- Department of Medical Genetics, Yamaguchi Prefectural Grand Medical Center, Yamaguchi, Japan
| | - Tomomi Fujikawa
- Division of Clinical Sequencing, Shinshu University School of Medicine, Matsumoto, Japan
| | - Yuri Takiguchi
- Division of Clinical Sequencing, Shinshu University School of Medicine, Matsumoto, Japan
| | - Ken-Ichi Matsumoto
- Department of Biosignaling and Radioisotope Experiment, Interdisciplinary Center for Science Research, Head Office for Research and Academic Information, Shimane University, Izumo, Japan
| | - Tomoki Kosho
- Center for Medical Genetics, Shinshu University Hospital, Matsumoto, Japan
- Department of Medical Genetics, Shinshu University School of Medicine, Matsumoto, Japan
- Division of Clinical Sequencing, Shinshu University School of Medicine, Matsumoto, Japan
- Research Center for Supports to Advanced Science, Shinshu University, Matsumoto, Japan
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Zhu F, Li Y, Wang Y, Yao Y, Zeng R. The same heterozygous Col4A4 mutation triggered different renal pathological changes in Chinese family members. Front Genet 2023; 14:1180149. [PMID: 37323683 PMCID: PMC10265269 DOI: 10.3389/fgene.2023.1180149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 05/18/2023] [Indexed: 06/17/2023] Open
Abstract
Background: Mutations in the collagen components of the glomerular basement membrane (GBM) often lead to hereditary glomerulonephritis. Previous studies have identified that autosomal dominant mutations of Col4A3, Col4A4 or Col4A5 are associated with thin basement membrane nephropathy (TBMN), Alport syndrome and other hereditary kidney diseases. However, the genetic mutations underlying other glomerulonephritis types have not been elucidated. Methods: In this study, we investigated a Chinese family with hereditary nephritis using the methods of genetic sequencing and renal biopsy. Genomic DNA was extracted from peripheral blood of the proband and her sister, and subsequently was performed genetic sequencing. They were found to have the similar mutation sites. Other family members were then validated using Sanger sequencing. The proband and her sister underwent renal puncture biopsies, and experienced pathologists performed PAS, Masson, immunofluorescence, and immunoelectron microscopic staining of the kidney tissue sections. Results: Through genetic sequencing analysis, we detected a novel heterozygous frameshift mutation c.1826delC in the COL4A4 (NM_000092.4) gene coding region, and 1 hybrid missense variation c.86G>A (p. R29Q) was also detected in the TNXB (NM_019105.6) gene coding region in several members of this Chinese family. Interestingly, we found that the same mutations caused different clinical features and distinct pathological changes in individual family members, which confirmed that pathological and genetic testing are crucial for the diagnosis and treatment of hereditary kidney diseases. Conclusion: In this study, we found a novel heterozygous mutation in Col4A4 and co-mutations of the TNXB gene in this Chinese family. Our study indicated that the same Col4A4 mutated variants produced different pathological and clinical changes in different family members. This discovery may provide novel insights into the study of hereditary kidney disease. In addition, new genetic biology techniques and renal biopsy of individual family members are essential.
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Affiliation(s)
- Fengming Zhu
- Department of Nephrology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yueqiang Li
- Department of Nephrology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yuxi Wang
- Department of Nephrology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ying Yao
- Department of Nephrology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Department of Nutrition, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Rui Zeng
- Department of Nephrology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Key Laboratory of Organ Transplantation, Ministry of Education, NHC Key Laboratory of Organ Transplantation, Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Wuhan, China
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Zhang K, Wang X, Zeng LT, Yang X, Cheng XF, Tian HJ, Chen C, Sun XJ, Zhao CQ, Ma H, Zhao J. Circular RNA PDK1 targets miR-4731-5p to enhance TNXB expression in ligamentum flavum hypertrophy. FASEB J 2023; 37:e22877. [PMID: 37014317 DOI: 10.1096/fj.202200022rr] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 02/08/2023] [Accepted: 03/02/2023] [Indexed: 04/05/2023]
Abstract
Hypertrophic ligamentum flavum (LF) is a main factor responsible for lumbar spinal stenosis (LSS); however, the exact mechanisms of the pathogenesis of these processes remain unknown. This study aimed to elucidate whether circular RNAs and microRNAs regulate the pathogenesis of LF and LSS, especially focusing on circPDK1 (hsa_circ_0057105), a circRNA targeting pyruvate dehydrogenase kinase 1 and differentially expressed in LF tissues between lumbar disk herniation and LSS patients. The circPDK1/miR-4731 and miR-4731/TNXB (Tenascin XB) interactions were predicted and validated by luciferase reporter assay. Colony formation, wound-healing, and MTT assays were used for estimating cell proliferation and migration. Protein expression levels were evaluated using Western blotting. TNXB expression was verified using immunohistochemistry (IHC). Overexpressing circPDK1 promoted the proliferation, migration, and expression of fibrosis-related protein (alpha smooth muscle actin (α-SMA), lysyl oxidase like 2 (LOXL2), Collagen I, matrix metalloproteinase-2 (MMP-2) and TNXB) in LF whereas miR-4731-5p showed opposite effects. The expression of TNXB was promoted by circPDK1; contrary results were observed with miR-4731-5p. Co-overexpression of miR-4731-5p partially reversed the proliferative and fibrosis-prompting effects of circPDK1 or TNXB. The circPDK1-miR-4731-TNXB pathway may be proposed as a regulatory axis in LF hypertrophy, which might shed light on in-depth research of LSS, as well as providing a novel therapeutic target for LF hypertrophy-induced LSS.
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Affiliation(s)
- Kai Zhang
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopedics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xin Wang
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopedics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Li-Ting Zeng
- Department of Emergency, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiao Yang
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopedics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiao-Fei Cheng
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopedics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Hai-Jun Tian
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopedics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Chen Chen
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopedics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiao-Jiang Sun
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopedics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Chang-Qing Zhao
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopedics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Hui Ma
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopedics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jie Zhao
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopedics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Lao Q, Zhou K, Parker M, Faucz FR, Merke DP. Pseudogene TNXA Variants May Interfere with the Genetic Testing of CAH-X. Genes (Basel) 2023; 14:genes14020265. [PMID: 36833192 PMCID: PMC9956258 DOI: 10.3390/genes14020265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 01/13/2023] [Accepted: 01/14/2023] [Indexed: 01/20/2023] Open
Abstract
CAH-X is a hypermobility-type Ehlers-Danlos syndrome connective tissue dysplasia affecting approximately 15% of patients with 21-hydroxylase deficiency (21-OHD) congenital adrenal hyperplasia (CAH) due to contiguous deletion of CYP21A2 and TNXB genes. The two most common genetic causes of CAH-X are CYP21A1P-TNXA/TNXB chimeras with pseudogene TNXA substitution for TNXB exons 35-44 (CAH-X CH-1) and TNXB exons 40-44 (CAH-X CH-2). A total of 45 subjects (40 families) from a cohort of 278 subjects (135 families of 21-OHD and 11 families of other conditions) were found to have excessive TNXB exon 40 copy number as measured by digital PCR. Here, we report that 42 subjects (37 families) had at least one copy of a TNXA variant allele carrying a TNXB exon 40 sequence, whose overall allele frequency was 10.3% (48/467). Most of the TNXA variant alleles were in cis with either a normal (22/48) or an In2G (12/48) CYP21A2 allele. There is potential interference with CAH-X molecular genetic testing based on copy number assessment, such as with digital PCR and multiplex ligation-dependent probe amplification, since this TNXA variant allele might mask a real copy number loss in TNXB exon 40. This interference most likely happens amongst genotypes of CAH-X CH-2 with an in trans normal or In2G CYP21A2 allele.
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Affiliation(s)
- Qizong Lao
- National Institutes of Health Clinical Center, Bethesda, MD 20892, USA
- Correspondence: ; Tel.: +1-301-451-7168
| | - Kiet Zhou
- National Institutes of Health Clinical Center, Bethesda, MD 20892, USA
| | - Megan Parker
- National Institutes of Health Clinical Center, Bethesda, MD 20892, USA
| | - Fabio R. Faucz
- The Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892, USA
| | - Deborah P. Merke
- National Institutes of Health Clinical Center, Bethesda, MD 20892, USA
- The Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892, USA
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Lu X, Fu Y, Gu L, Zhang Y, Liao AY, Wang T, Jia B, Zhou D, Liao L. Integrated proteome and phosphoproteome analysis of gastric adenocarcinoma reveals molecular signatures capable of stratifying patient outcome. Mol Oncol 2022; 17:261-283. [PMID: 36520032 PMCID: PMC9892830 DOI: 10.1002/1878-0261.13361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 11/04/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022] Open
Abstract
Metastasis is one of the main causes of low survival rate of gastric cancer patients. Exploring key proteins in the progression of gastric adenocarcinoma (GAC) may provide new candidates for prognostic biomarker development and therapeutic intervention. We applied quantitative mass spectrometry to compare the proteome and phosphoproteome of primary tumor tissues between GAC patients with and without lymph node metastasis (LNM). We then performed an integrated analysis of the proteomic and transcriptomic data to reveal the molecular features. We quantified a total of 5536 proteins, and we found 218 upregulated and 49 downregulated proteins in tumor samples from patients with LNM compared to those without LNM. Clustering analysis identified a number of hub proteins that have been previously shown to play important roles in gastric cancer progression. We also found that two extracellular proteins, TNXB and SPON1, are overexpressed in patients with LNM, which correlates with poor survival of GAC patients. Overexpression of TNXB and SPON1 was validated by western blotting and immunohistochemistry. Furthermore, treating gastric cancer cells with anti-TNXB antibody significantly reduced cell migration. Finally, quantitative phosphoproteomic analysis combined with activity-based kinase capture revealed a number of activated kinases in primary tumor tissues from patients with LNM, among which GSK3 might be a new target that warrants further study. Our study provides a snapshot of the proteome and phosphoproteome of GAC tumor tissues that have metastatic potential, and identifies potential biomarkers for GAC progression.
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Affiliation(s)
- Xue Lu
- Shanghai Key Laboratory of Regulatory Biology, School of Life SciencesEast China Normal UniversityShanghaiChina
| | - Yunyun Fu
- Shanghai Key Laboratory of Regulatory Biology, School of Life SciencesEast China Normal UniversityShanghaiChina
| | - Lei Gu
- Department of General Surgery, Shanghai Tenth People's Hospital, School of MedicineTongji UniversityShanghaiChina
| | - Yunpeng Zhang
- Shanghai Key Laboratory of Regulatory Biology, School of Life SciencesEast China Normal UniversityShanghaiChina
| | | | | | - Bin Jia
- Department of OncologyThe First Affiliated Hospital of Zhengzhou UniversityChina
| | - Donglei Zhou
- Department of Gastric SurgeryFudan University Shanghai Cancer CenterChina,Department of Oncology, Shanghai Medical CollegeFudan UniversityShanghaiChina
| | - Lujian Liao
- Shanghai Key Laboratory of Regulatory Biology, School of Life SciencesEast China Normal UniversityShanghaiChina
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Akbarzadeh M, Riahi P, Kolifarhood G, Lanjanian H, Alipour N, Najd Hassan Bonab L, Reza Moghadas M, Sabour S, Azizi F, Daneshpour MS. The AGT epistasis pattern proposed a novel role for ZBED9 in regulating blood pressure: Tehran Cardiometabolic genetic study (TCGS). Gene 2022; 831:146560. [PMID: 35577038 DOI: 10.1016/j.gene.2022.146560] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Revised: 04/11/2022] [Accepted: 05/06/2022] [Indexed: 01/11/2023]
Abstract
INTRODUCTION High blood pressure is widely regarded as the most important risk factor for cardiovascular diseases. Epistasis analysis may provide additional insight into the genetic basis of hypertension. METHODS A nested case-control design was used on 4214 unrelated Tehran Cardiometabolic Genetic Study (TCGS) adults to evaluate 65 SNPs of previously associated genes, including ZBED9, AGT, and TNXB. The integrated effect of each gene was determined using the Sequence-based Kernel Association Test (SKAT). We used model-based multifactor dimension reduction (Mb-MDR) and entropy-based gene-gene interaction (IGENT) methods to determine interaction and epistasis patterns. RESULTS The integrated effect of each gene has a statistically significant association with blood pressure traits (P-value < 0.05). The single-locus analysis identified two missense variants in ZBED9 (rs450630) and AGT (rs4762) associated with hypertension. In the ZBED9 gene, significant local interactions were discovered. The G allele in rs450630 showed an antagonistic effect on hypertension, but interestingly, IGENT analysis revealed significant epistasis effects for different combinations of ZBED9, AGT, and TNXB loci. CONCLUSION We discovered a novel interaction effect between a significant variant in an essential gene for hypertension (AGT) and a missense variant in ZBED9, which has shifted our focus to ZBED9's role in blood pressure regulation.
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Affiliation(s)
- Mahdi Akbarzadeh
- Cellular and Molecular Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Parisa Riahi
- Cellular and Molecular Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | | | - Hossein Lanjanian
- Cellular and Molecular Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Nadia Alipour
- Department of Biostatistics, Faculty of Medical Sciences, Tarbiat Modares University, Iran
| | - Leila Najd Hassan Bonab
- Cellular and Molecular Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Reza Moghadas
- Cellular and Molecular Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Siamak Sabour
- Department of Epidemiology, School of Public Health and Safety, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Fereidoun Azizi
- Endocrine research center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Maryam S Daneshpour
- Cellular and Molecular Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Marino R, Moresco A, Perez Garrido N, Ramirez P, Belgorosky A. Congenital Adrenal Hyperplasia and Ehlers-Danlos Syndrome. Front Endocrinol (Lausanne) 2022; 13:803226. [PMID: 35282436 PMCID: PMC8913572 DOI: 10.3389/fendo.2022.803226] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Accepted: 01/31/2022] [Indexed: 11/13/2022] Open
Abstract
Congenital adrenal hyperplasia (CAH) secondary to 21-hydroxylase deficiency is an autosomal recessive disorder. The 21-hydroxylase enzyme P450c21 is encoded by the CYP21A2 gene located on chromosome 6p21.33 within the HLA major histocompatibility complex. This locus also contains the CYP21A1P, a non-functional pseudogene, that is highly homologous to the CYP21A2 gene. Other duplicated genes are C4A and C4B, that encode two isoforms of complement factor C4, the RP1 gene that encodes a serine/threonine protein kinase, and the TNXB gene that, encodes the extracellular matrix glycoprotein tenascin-X (TNX). TNX plays a role in collagen deposition by dermal fibroblasts and is expressed in the dermis of the skin and the connective tissue of the heart and skeletal muscle. During meiosis, misalignment may occur producing large gene deletions or gene conversion events resulting in chimeric genes. Chimeric recombination may occur between TNXB and TNXA. Three TNXA/TNXB chimeras have been described that differ in the junction site (CH1 to CH3) and result in a contiguous CYP21A2 and TNXB gene deletion, causing CAH-X syndrome. TNXB deficiency is associated with Ehlers Danlos syndrome (EDS). EDS comprises a clinically and genetically heterogeneous group of connective tissue disorders. As molecular analysis of the TNXB gene is challenging, the TNX-deficient type EDS is probably underdiagnosed. In this minireview, we will address the different strategies of molecular analysis of the TNXB-gene, as well as copy number variations and genetic status of TNXB in different cohorts. Furthermore, clinical features of EDS and clinical recommendations for long-term follow-up are discussed.
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Affiliation(s)
- Roxana Marino
- Molecular Biology Laboratory, Endocrinology Service, Hospital de Pediatría Prof. Dr. Juan P. Garrahan, Buenos Aires, Argentina
| | - Angélica Moresco
- Genetics Service, Hospital de Pediatría Prof. Dr. Juan P. Garrahan, Buenos Aires, Argentina
| | - Natalia Perez Garrido
- Molecular Biology Laboratory, Endocrinology Service, Hospital de Pediatría Prof. Dr. Juan P. Garrahan, Buenos Aires, Argentina
| | - Pablo Ramirez
- Molecular Biology Laboratory, Endocrinology Service, Hospital de Pediatría Prof. Dr. Juan P. Garrahan, Buenos Aires, Argentina
| | - Alicia Belgorosky
- Endocrinology Service, Hospital de Pediatría Prof. Dr. Juan P. Garrahan, Buenos Aires, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
- *Correspondence: Alicia Belgorosky,
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10
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Lao Q, Mallappa A, Rueda Faucz F, Joyal E, Veeraraghavan P, Chen W, Merke DP. A TNXB splice donor site variant as a cause of hypermobility type Ehlers-Danlos syndrome in patients with congenital adrenal hyperplasia. Mol Genet Genomic Med 2020; 9:e1556. [PMID: 33332743 PMCID: PMC8077117 DOI: 10.1002/mgg3.1556] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 09/18/2020] [Accepted: 10/29/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Congenital adrenal hyperplasia (CAH) due to 21-hydroxylase deficiency is an autosomal recessive disease of steroidogenesis that affects 1 in 15,000. Approximately, 10% of the CAH population also suffer from CAH-X, a connective tissue dysplasia consistent with hypermobility type Ehlers-Danlos syndrome (EDS). Most patients with CAH-X carry a contiguous gene deletion involving CYP21A2 encoding 21-hydroxylase and TNXB encoding tenascin-X (TNX), but some are of unknown etiology. METHODS We conducted clinical evaluation and medical history review of EDS-related manifestations in subjects from two unrelated CAH families who carry a heterozygous TNXB c.12463+2T>C variant that alters the splice donor site of intron 42. A next generation sequencing (NGS) based EDS panel composed of 45 genes was performed for index patients from each family. TNX expression in patient skin biopsy tissues and dermal fibroblasts was assessed by qRT-PCR and Sanger sequencing. RESULTS All three evaluated CAH patients carrying the TNXB splice site variant had moderate EDS manifestations. An NGS panel excluded involvement of other known EDS-related variants. RNA assay on skin biopsies and dermal fibroblasts did not detect splicing errors in TNX mRNA; however, the removal of intron 42 was less efficient in the allele harboring the splice site variant as evidenced by the existence of a premature TNX RNA form, leading to an allele specific decrease in TNX mRNA. CONCLUSIONS Carrying a TNXB c.12463+2T>C variant at the intron 42 splice donor site causes an allele specific decrease in TNX expression, which can be associated with moderate EDS in CAH patients.
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Affiliation(s)
- Qizong Lao
- National Institutes of Health Clinical Center, Bethesda, MD, USA
| | - Ashwini Mallappa
- National Institutes of Health Clinical Center, Bethesda, MD, USA
| | - Fabio Rueda Faucz
- The Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, USA
| | - Elizabeth Joyal
- National Institutes of Health Clinical Center, Bethesda, MD, USA
| | | | | | - Deborah P Merke
- National Institutes of Health Clinical Center, Bethesda, MD, USA.,The Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, USA
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11
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Yan F, Liu SW, Li XY, Li CC, Wu Y. Silencing LncRNA LINC01305 inhibits epithelial mesenchymal transition in lung cancer cells by regulating TNXB-mediated PI3K/Akt signaling pathway. J BIOL REG HOMEOS AG 2020; 34:499-508. [PMID: 32549529 DOI: 10.23812/20-73-a-33] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The aim of this study was to investigate whether LINC01305 can regulate TNXB-mediated phosphatidilinositol 3-kinase (PI3K)/protein kinase B (Akt) signaling pathway and therefore affect epithelial mesenchymal transition in lung cancer cells. Quantitative real-time polymerase chain reaction (qRT-PCR) was conducted to detect LINC01305 level in 52 non-small cell lung cancer (NSCLC) tissues and paracancerous normal lung tissues, and the relationship between LINC01305 expression and clinical pathological parameters of these subjects was analyzed. After LINC01305 was knocked down in PC9 cell and overexpressed in A549 cells, qRT-PCR was used to verify the transfection efficiency, and nuclear fractionation technique, cell counting kit-8 (CCK-8), plate cloning assay and Transwell test were used to detect the effect of LINC01305 on cell viability. LINC01305 had an obviously higher expression in NSCLC tissues, and the expression in lung cancer patients with tumor size >3 cm was higher than those with tumor ≤3 cm. LINC01305 expression in tumor tissues in T3-T4 stage was obviously higher than those in T1-T2 stage, and the overall survival rate of lung cancer patients with high expression of LINC01305 was lower than those with low expression. Moreover, clinical analysis revealed that LINC01305 level was related to tumor size, TNM stage and lymph node metastasis of patients with lung cancer, but not related to age or gender. Silencing LINC01305 can inhibit the epithelial mesenchymal transition-induced transformation of lung cancer cells through regulating TNXB-mediated PI3K/Akt signaling pathway, which in turn affects the progression of lung cancer.
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Affiliation(s)
- F Yan
- Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & the Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, China
| | - S W Liu
- Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & the Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, China
| | - X Y Li
- Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & the Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, China
| | - C C Li
- Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & the Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, China
| | - Y Wu
- Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & the Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, China
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12
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Green C, Ghali N, Akilapa R, Angwin C, Baker D, Bartlett M, Bowen J, Brady AF, Brock J, Chamberlain E, Cheema H, McConnell V, Crookes R, Kazkaz H, Johnson D, Pope FM, Vandersteen A, Sobey G, van Dijk FS. Classical-like Ehlers-Danlos syndrome: a clinical description of 20 newly identified individuals with evidence of tissue fragility. Genet Med 2020; 22:1576-82. [PMID: 32572181 DOI: 10.1038/s41436-020-0850-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Revised: 05/12/2020] [Accepted: 05/18/2020] [Indexed: 12/18/2022] Open
Abstract
PURPOSE Currently, 31 patients with classical-like EDS (clEDS) due to tenascin-X deficiency have been reported in the literature. We report on the clinical and molecular characteristics of 20 additional patients with clEDS to expand knowledge and to enable improved management of this rare genetic disorder. METHODS Patients diagnosed with clEDS by the national EDS service in the UK (n = 21) and abroad (n = 1) were asked for consent for publication of their clinical and molecular data. RESULTS Of 22 patients, 20 consented. All patients had typical features of clEDS: joint hypermobility, easy bruising, and skin hyperextensibility without atrophic scars. Importantly, 3/20 patients experienced gastrointestinal complications consisting of small or large bowel ruptures and one esophageal rupture. Other notable observations included two separate occurrences of spontaneous compartment syndrome, suspicion of nonaccidental injury due to significant bruising, and significant clinical variability regarding the debilitating effect of joint dislocations. CONCLUSIONS We propose a predisposition to tissue fragility, particularly of the gastrointestinal tract in patients with clEDS. As such, clinical and molecular confirmation of this diagnosis is essential. It is recommended to follow up these patients closely to understand the natural history to develop better recommendations for management.
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13
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Yang N, Tian J, Wang X, Mei S, Zou D, Peng X, Zhu Y, Yang Y, Gong Y, Ke J, Zhong R, Chang J, Miao X. A functional variant in TNXB promoter associates with the risk of esophageal squamous-cell carcinoma. Mol Carcinog 2020; 59:439-446. [PMID: 32056283 DOI: 10.1002/mc.23166] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Revised: 11/23/2019] [Accepted: 02/04/2020] [Indexed: 11/11/2022]
Abstract
Our previous study identified a tag single-nucleotide polymorphism (SNP) rs204900 in TNXB associated with risk of esophageal squamous-cell carcinoma (ESCC) in the Chinese population. However, the functional role of TNXB and causal variants had not been interrogated in that study. In the present study, we explored the effects of TNXB expression in the development of ESCC and searched for functional variants in this gene. We found TNXB was downregulated in ESCC tumors. Using small interfering RNAs and CRISPR-Cas9 methods, we identified that both knockdown and knockout of TNXB significantly promoted ESCC cell growth in vitro, suggesting a tumor suppressor role of this gene in ESCC. Through further fine-mapping analysis, we identified that a noncoding variant in the promoter of TNXB, rs411337, predisposed to ESCC risk (odds ratio = 1.36, 95% confidence interval: 1.22-1.51, P = 9.10 × 10-9 ). These findings revealed the functional mechanism of TNXB in the development of ESCC and may contribute to the prevention and treatment of this disease in the future.
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Affiliation(s)
- Nan Yang
- Department of Epidemiology and Biostatistics, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jianbo Tian
- Department of Epidemiology and Biostatistics, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaoyang Wang
- Department of Epidemiology and Biostatistics, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Shufang Mei
- Department of Epidemiology and Biostatistics, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Danyi Zou
- Department of Epidemiology and Biostatistics, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiating Peng
- Department of Epidemiology and Biostatistics, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ying Zhu
- Department of Epidemiology and Biostatistics, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yang Yang
- Department of Epidemiology and Biostatistics, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yajie Gong
- Department of Epidemiology and Biostatistics, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Juntao Ke
- Department of Epidemiology and Biostatistics, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Rong Zhong
- Department of Epidemiology and Biostatistics, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jiang Chang
- Department of Epidemiology and Biostatistics, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaoping Miao
- Department of Epidemiology and Biostatistics, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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14
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Micale L, Guarnieri V, Augello B, Palumbo O, Agolini E, Sofia VM, Mazza T, Novelli A, Carella M, Castori M. Novel TNXB Variants in Two Italian Patients with Classical-Like Ehlers-Danlos Syndrome. Genes (Basel) 2019; 10:E967. [PMID: 31775249 DOI: 10.3390/genes10120967] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2019] [Revised: 11/19/2019] [Accepted: 11/21/2019] [Indexed: 12/17/2022] Open
Abstract
TNXB-related classical-like Ehlers-Danlos syndrome (TNXB-clEDS) is an ultrarare type of Ehlers-Danlos syndrome due to biallelic null variants in TNXB, encoding tenascin-X. Less than 30 individuals have been reported to date, mostly of Dutch origin and showing a phenotype resembling classical Ehlers-Danlos syndrome without atrophic scarring. TNXB-clEDS is likely underdiagnosed due to the complex structure of the TNXB locus, a fact that complicates diagnostic molecular testing. Here, we report two unrelated Italian women with TNXB-clEDS due to compound heterozygosity for null alleles in TNXB. Both presented soft and hyperextensible skin, generalized joint hypermobility and related musculoskeletal complications, and chronic constipation. In addition, individual 1 showed progressive finger contractures and shortened metatarsals, while individual 2 manifested recurrent subconjunctival hemorrhages and an event of spontaneous rupture of the brachial vein. Molecular testing found the two previously unreported c.8278C > T p.(Gln2760*) and the c.(2358 + 1_2359 − 1)_(2779 + 1_2780 − 1)del variants in Individual 1, and the novel c.1150dupG p.(Glu384Glyfs*57) and the recurrent c.11435_11524+30del variants in Individual 2. mRNA analysis confirmed that the c.(2358 + 1_2359 − 1)_(2779 + 1_2780 − 1)del variant causes a frameshift leading to a predicted truncated protein [p.(Thr787Glyfs*40)]. This study refines the phenotype recently delineated in association with biallelic null alleles in TNXB, and adds three novel variants to its mutational repertoire. Unusual digital anomalies seem confirmed as possibly peculiar of TNXB-clEDS, while vascular fragility could be more than a chance association also in this Ehlers-Danlos syndrome type.
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15
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Kolli V, Kim H, Rao H, Lao Q, Gaynor A, Milner JD, Merke DP. Measurement of serum tenascin-X in patients with congenital adrenal hyperplasia at risk for Ehlers-Danlos contiguous gene deletion syndrome CAH-X. BMC Res Notes 2019; 12:711. [PMID: 31666125 PMCID: PMC6820911 DOI: 10.1186/s13104-019-4753-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Accepted: 10/18/2019] [Indexed: 11/10/2022] Open
Abstract
Objective Approximately 10% of patients with congenital adrenal hyperplasia (CAH) due to 21-hydroxylase deficiency carry a mutation that disrupts CYP21A2 and the flanking TNXB gene resulting in CAH-X, a contiguous gene deletion syndrome. TNXB encodes tenascin-X (TNX), an extracellular matrix glycoprotein that plays an important role in collagen organization. TNXB impairment is associated with Ehlers–Danlos syndrome. Symptoms include joint hypermobility, hernias and cardiac defects. We measured serum TNX using an antibody targeting the amino-terminal of the TNX protein in 161 subjects, including extensively genotyped and phenotyped CAH patients, their relatives, and healthy controls. Results We evaluated the potential of serum TNX as a screening tool for CAH-X. CAH-X patients, especially haploinsufficient patients carrying the TNXA-TNXB chimeric gene CAH-X-CH-1 showed reduced TNX levels compared to controls (P < 0.05). TNX levels were similar in all subjects carrying a TNXB mutation. However, CAH patients who did not harbor a TNXB mutation also had reduced TNX compared to controls (P < 0.001). Thus, measuring serum TNX is not an effective screen for CAH-X amongst patients with CAH. TNXB genotyping is recommended for CAH patients who have symptoms of a connective tissue disorder. Epigenetic factors that influence TNX expression require further study.
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Affiliation(s)
- Vipula Kolli
- National Institutes of Health Clinical Center, 10 Center Drive, Building 10, Room 1-2740, Bethesda, MD, 20892-1932, USA
| | - Hannah Kim
- National Institutes of Health Clinical Center, 10 Center Drive, Building 10, Room 1-2740, Bethesda, MD, 20892-1932, USA
| | - Hamsini Rao
- National Institutes of Health Clinical Center, 10 Center Drive, Building 10, Room 1-2740, Bethesda, MD, 20892-1932, USA
| | - Qizong Lao
- National Institutes of Health Clinical Center, 10 Center Drive, Building 10, Room 1-2740, Bethesda, MD, 20892-1932, USA
| | - Alison Gaynor
- National Institutes of Health Clinical Center, 10 Center Drive, Building 10, Room 1-2740, Bethesda, MD, 20892-1932, USA
| | - Joshua D Milner
- National Institute of Allergy and Infectious Diseases, Bethesda, MD, 20892, USA
| | - Deborah P Merke
- National Institutes of Health Clinical Center, 10 Center Drive, Building 10, Room 1-2740, Bethesda, MD, 20892-1932, USA. .,The Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, USA.
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16
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Rymen D, Ritelli M, Zoppi N, Cinquina V, Giunta C, Rohrbach M, Colombi M. Clinical and Molecular Characterization of Classical-Like Ehlers-Danlos Syndrome Due to a Novel TNXB Variant. Genes (Basel) 2019; 10:genes10110843. [PMID: 31731524 PMCID: PMC6895888 DOI: 10.3390/genes10110843] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 10/20/2019] [Accepted: 10/23/2019] [Indexed: 12/21/2022] Open
Abstract
The Ehlers-Danlos syndromes (EDS) constitute a clinically and genetically heterogeneous group of connective tissue disorders. Tenascin X (TNX) deficiency is a rare type of EDS, defined as classical-like EDS (clEDS), since it phenotypically resembles the classical form of EDS, though lacking atrophic scarring. Although most patients display a well-defined phenotype, the diagnosis of TNX-deficiency is often delayed or overlooked. Here, we described an additional patient with clEDS due to a homozygous null-mutation in the TNXB gene. A review of the literature was performed, summarizing the most important and distinctive clinical signs of this disorder. Characterization of the cellular phenotype demonstrated a distinct organization of the extracellular matrix (ECM), whereby clEDS distinguishes itself from most other EDS subtypes by normal deposition of fibronectin in the ECM and a normal organization of the α5β1 integrin.
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Affiliation(s)
- Daisy Rymen
- Connective Tissue Unit, Division of Metabolism and Children’s Research Centre, University Children’s Hospital, 8032 Zürich, Switzerland; (C.G.); (M.R.)
- Correspondence:
| | - Marco Ritelli
- Division of Biology and Genetics, Department of Molecular and Translational Medicine, University of Brescia, 25123 Brescia, Italy; (M.R.); (N.Z.); (V.C.); (M.C.)
| | - Nicoletta Zoppi
- Division of Biology and Genetics, Department of Molecular and Translational Medicine, University of Brescia, 25123 Brescia, Italy; (M.R.); (N.Z.); (V.C.); (M.C.)
| | - Valeria Cinquina
- Division of Biology and Genetics, Department of Molecular and Translational Medicine, University of Brescia, 25123 Brescia, Italy; (M.R.); (N.Z.); (V.C.); (M.C.)
| | - Cecilia Giunta
- Connective Tissue Unit, Division of Metabolism and Children’s Research Centre, University Children’s Hospital, 8032 Zürich, Switzerland; (C.G.); (M.R.)
| | - Marianne Rohrbach
- Connective Tissue Unit, Division of Metabolism and Children’s Research Centre, University Children’s Hospital, 8032 Zürich, Switzerland; (C.G.); (M.R.)
| | - Marina Colombi
- Division of Biology and Genetics, Department of Molecular and Translational Medicine, University of Brescia, 25123 Brescia, Italy; (M.R.); (N.Z.); (V.C.); (M.C.)
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17
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Yan SP, Chu DX, Qiu HF, Xie Y, Wang CF, Zhang JY, Li WC, Guo RX. LncRNA LINC01305 silencing inhibits cell epithelial-mesenchymal transition in cervical cancer by inhibiting TNXB-mediated PI3K/Akt signalling pathway. J Cell Mol Med 2019; 23:2656-2666. [PMID: 30697971 PMCID: PMC6433725 DOI: 10.1111/jcmm.14161] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2018] [Revised: 12/14/2018] [Accepted: 12/23/2018] [Indexed: 12/13/2022] Open
Abstract
Cervical cancer (CC) remains one of the leading malignancies afflicting females worldwide, with its aetiology associated with long‐term papillomavirus infection. Recent studies have shifted their focus and research attention to the relationship between long non‐coding RNAs (lncRNAs) and CC therapeutic. Thus, the aim of the current study was to investigate the underlying mechanism of lncRNA LINC01305 on the cell invasion, migration and epithelial‐mesenchymal transition (EMT) of CC cells via modulation of the PI3K/Akt signalling pathway by targeting tenascin‐X B (TNXB). The expressions of LINC01305, TNXB, MMP2, MMP9, E‐cadherin, vimentin, PI3K, Akt, p‐PI3K, p‐Akt and TNXB were detected in this study. After which, the cell invasion and migration abilities of the CC cells were determined respectively. Bioinformatics and the application of a dual luciferase reporter gene assay provided verification indicating that TNXB is the target gene of lncRNA LINC01305. Reverse transcription quantitative polymerase chain reaction (RT‐qPCR) and western blot analysis methods revealed that the expressions of MMP2, MMP9, vimentin, PI3K, Akt, p‐PI3K and p‐Akt were decreased following the down‐regulation of LncRNA LINC01305 or overexpression of TNXB. LncRNA LINC01305 silencing or TNXB overexpression was noted to decrease the migration and invasion of SiHa cells. Taken together, the key findings of the current study present evidence suggesting that lncRNA LINC01305 silencing suppresses EMT, invasion and migration via repressing the PI3K/Akt signalling pathway by means of targeting TNXB in CC cells, which ultimately provides novel insight and identification of potential therapeutic targets for CC.
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Affiliation(s)
- Shu-Ping Yan
- Department of Pathology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, P.R. China.,Department of Pathology, School of Basic Medicine, Zhengzhou University, Zhengzhou, Henan Province, P.R. China.,Henan Key Laboratory for Tumor Pathology, Zhengzhou, Henan Province, P.R. China
| | - Dan-Xia Chu
- Department of Gynecology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, P.R. China
| | - Hai-Feng Qiu
- Department of Gynecology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, P.R. China
| | - Ya Xie
- Department of Gynecology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, P.R. China
| | - Chun-Fang Wang
- Department of Gynecology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, P.R. China
| | - Jian-Ying Zhang
- Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan Province, P.R. China
| | - Wen-Cai Li
- Department of Pathology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, P.R. China.,Department of Pathology, School of Basic Medicine, Zhengzhou University, Zhengzhou, Henan Province, P.R. China.,Henan Key Laboratory for Tumor Pathology, Zhengzhou, Henan Province, P.R. China
| | - Rui-Xia Guo
- Department of Gynecology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, P.R. China
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