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Wen W, Zhao Z, Zheng Z, Zhao S, Zhao H, Cheng X, Du H, Li Z, Wang S, Qiu G, Wu Z, Zhang TJ, Wu N. Rare variant association analyses reveal the significant contribution of carbohydrate metabolic disturbance in severe adolescent idiopathic scoliosis. J Med Genet 2024; 61:666-676. [PMID: 38724173 PMCID: PMC11228217 DOI: 10.1136/jmg-2023-109667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Accepted: 02/18/2024] [Indexed: 06/22/2024]
Abstract
BACKGROUND Adolescent idiopathic scoliosis (AIS), the predominant genetic-influenced scoliosis, results in spinal deformities without vertebral malformations. However, the molecular aetiology of AIS remains unclear. METHODS Using genome/exome sequencing, we studied 368 patients with severe AIS (Cobb angle >40°) and 3794 controls from a Han Chinese cohort. We performed gene-based and pathway-based weighted rare variant association tests to assess the mutational burden of genes and established biological pathways. Differential expression analysis of muscle tissues from 14 patients with AIS and 15 controls was served for validation. RESULTS SLC16A8, a lactate transporter linked to retinal glucose metabolism, was identified as a novel severe AIS-associated gene (p=3.08E-06, false discovery rate=0.009). Most AIS cases with deleterious SLC16A8 variants demonstrated early onset high myopia preceding scoliosis. Pathway-based burden test also revealed a significant enrichment in multiple carbohydrate metabolism pathways, especially galactose metabolism. Patients with deleterious variants in these genes demonstrated a significantly larger spinal curve. Genes related to catabolic processes and nutrient response showed divergent expression between AIS cases and controls, reinforcing our genomic findings. CONCLUSION This study uncovers the pivotal role of genetic variants in carbohydrate metabolism in the development of AIS, unveiling new insights into its aetiology and potential treatment.
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Affiliation(s)
- Wen Wen
- Department of Orthopedic Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, Beijing, China
- School of Clinical Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, Beijing, China
| | - Zhengye Zhao
- Department of Orthopedic Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, Beijing, China
- Key Laboratory of Big Data for Spinal Deformities, Chinese Academy of Medical Sciences; Beijing, Beijing, Beijing, China
| | - Zhifa Zheng
- Department of Orthopedic Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, Beijing, China
- Key Laboratory of Big Data for Spinal Deformities, Chinese Academy of Medical Sciences; Beijing, Beijing, Beijing, China
| | - Sen Zhao
- Department of Orthopedic Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, Beijing, China
- Baylor College of Medicine Department of Molecular and Human Genetics, Houston, Texas, USA
| | - Hengqiang Zhao
- Department of Orthopedic Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, Beijing, China
- Feinberg School of Medicine, Northwestern University; Chicago, Chicago, Illinois, USA
| | - Xi Cheng
- Department of Orthopedic Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, Beijing, China
- School of Clinical Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, Beijing, China
| | - Huakang Du
- Department of Orthopedic Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, Beijing, China
- School of Clinical Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, Beijing, China
| | - Ziquan Li
- Department of Orthopedic Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, Beijing, China
- Key Laboratory of Big Data for Spinal Deformities, Chinese Academy of Medical Sciences; Beijing, Beijing, Beijing, China
| | - Shengru Wang
- Department of Orthopedic Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, Beijing, China
- Key Laboratory of Big Data for Spinal Deformities, Chinese Academy of Medical Sciences; Beijing, Beijing, Beijing, China
| | - Guixing Qiu
- Department of Orthopedic Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, Beijing, China
- Key Laboratory of Big Data for Spinal Deformities, Chinese Academy of Medical Sciences; Beijing, Beijing, Beijing, China
| | - Zhihong Wu
- Department of Orthopedic Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, Beijing, China
- Medical Research Center, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, Beijing, China
| | - Terry Jianguo Zhang
- Department of Orthopedic Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, Beijing, China
- Key Laboratory of Big Data for Spinal Deformities, Chinese Academy of Medical Sciences; Beijing, Beijing, Beijing, China
| | - Nan Wu
- Department of Orthopedic Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, Beijing, China
- Key Laboratory of Big Data for Spinal Deformities, Chinese Academy of Medical Sciences; Beijing, Beijing, Beijing, China
- Wenzhou Medical University, Wenzhou, Zhejiang, China
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Li J, Liu C, Xu Y, Ling C, Tang Z, Kiram A, Hu Z, Zhu Z, Qiu Y, Liu Z. Gut Microbiota Alterations in Adolescent Idiopathic Scoliosis Are Associated with Aberrant Bone Homeostasis. Orthop Surg 2024; 16:965-975. [PMID: 38389213 PMCID: PMC10984819 DOI: 10.1111/os.14019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Revised: 11/24/2023] [Accepted: 01/26/2024] [Indexed: 02/24/2024] Open
Abstract
OBJECTIVE Low bone mineral density is the major prognostic factor for adolescent idiopathic scoliosis (AIS), but the underlying mechanisms remain unclear. Accumulating evidence suggests that gut microbiota (GM) have the potential to affect bone development, and the GM signatures are altered in AIS patients. However, the effect of GM alterations on aberrant bone homeostasis in AIS remains unclear. This study aims to investigate the GM profile in AIS patients with different bone mineral density (BMD) and explore the association between GM, osteopenia, and aberrant bone turnover. METHODS A total of 126 patients with AIS who received surgical treatment were retrospectively included in this study. We analyzed the composition of the GM by 16S rRNA sequencing and BMD by dual X-ray absorptiometry. Based on the BMD of the femur neck, the patients were divided into the osteopenia group (OPN) if the Z score < -1, and the normal (NOR) group if the Z score ≥ -1 SD compared to the healthy control. For the 16S rRNA sequencing, the raw reads were filtered to remove low-quality reads, and operational taxonomic units were identified with the Uparse program. Weighted UniFrac distance matrix for the beta-diversity metrics and principal coordinate analysis (PCoA) was performed, and the statistical comparisons were made with permutational multivariate analysis of variance (PERMANOVA) and analysis of similarity (ANONISM). Linear discriminant analysis effect size (LEfSe) was used to identify the enriched species in two groups. The "Random forest" was applied to determine the optimal biomarker for OPN according to the mean decrease in Gini value. The metabolic function was predicted by the Tax4Fun analysis. The Pearson correlation coefficient was used to evaluate the associations between GM species, bone turnover markers, and BMD. RESULTS The serum β-CTX was increased in the OPN group (n = 67) compared to the NOR group (n = 59). Patients in OPN groups showed significantly decreased α diversity indicated by the Shannon index. Principal coordinate analysis (PCoA) analysis showed significant clustering of GM between OPN and NOR groups. At genus level, the Escherichia-Shigella and Faecalibacterium were significantly enriched in the OPN group compared to that in the NOR group (p < 0.05), whereas the abundance of Prevotella was significantly decreased (p = 0.0012). The relative abundance of Megamonas and Prevotella was positively correlated with the femur BMD. The abundance of Escherichia-Shigella was negatively correlated with femur BMD and positively correlated with serum β-CTX levels. Functional analysis revealed significant differences in starch and sucrose metabolism, pyruvate and cysteine, and methionine metabolism between NOR and OPN groups. CONCLUSION The alterations of GM in AIS patients are correlated with osteopenia. The association between enriched species, BMD, and bone turnover markers provides novel diagnostic and therapeutic targets for the clinical management of AIS.
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Affiliation(s)
- Jie Li
- Division of Spine Surgery, Department of Orthopedic SurgeryNanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical SchoolNanjingChina
| | - Changwei Liu
- Division of Spine Surgery, Department of Orthopedic SurgeryNanjing Drum Tower Hospital, Clinical College of Nanjing Medical UniversityNanjingChina
| | - Yanjie Xu
- Division of Spine Surgery, Department of Orthopedic SurgeryNanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical SchoolNanjingChina
| | - Chen Ling
- Division of Spine Surgery, Department of Orthopedic SurgeryNanjing Drum Tower Hospital, Clinical College of Nanjing Medical UniversityNanjingChina
| | - Ziyang Tang
- Division of Spine Surgery, Department of Orthopedic SurgeryNanjing Drum Tower Hospital, Clinical College of Nanjing Medical UniversityNanjingChina
| | - Abdukahar Kiram
- Division of Spine Surgery, Department of Orthopedic SurgeryNanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical SchoolNanjingChina
| | - Zongshan Hu
- Division of Spine Surgery, Department of Orthopedic SurgeryNanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical SchoolNanjingChina
| | - Zezhang Zhu
- Division of Spine Surgery, Department of Orthopedic SurgeryNanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical SchoolNanjingChina
- Division of Spine Surgery, Department of Orthopedic SurgeryNanjing Drum Tower Hospital, Clinical College of Nanjing Medical UniversityNanjingChina
| | - Yong Qiu
- Division of Spine Surgery, Department of Orthopedic SurgeryNanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical SchoolNanjingChina
- Division of Spine Surgery, Department of Orthopedic SurgeryNanjing Drum Tower Hospital, Clinical College of Nanjing Medical UniversityNanjingChina
| | - Zhen Liu
- Division of Spine Surgery, Department of Orthopedic SurgeryNanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical SchoolNanjingChina
- Division of Spine Surgery, Department of Orthopedic SurgeryNanjing Drum Tower Hospital, Clinical College of Nanjing Medical UniversityNanjingChina
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Yu H, Khanshour AM, Ushiki A, Otomo N, Koike Y, Einarsdottir E, Fan Y, Antunes L, Kidane YH, Cornelia R, Sheng RR, Zhang Y, Pei J, Grishin NV, Evers BM, Cheung JPY, Herring JA, Terao C, Song YQ, Gurnett CA, Gerdhem P, Ikegawa S, Rios JJ, Ahituv N, Wise CA. Association of genetic variation in COL11A1 with adolescent idiopathic scoliosis. eLife 2024; 12:RP89762. [PMID: 38277211 PMCID: PMC10945706 DOI: 10.7554/elife.89762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2024] Open
Abstract
Adolescent idiopathic scoliosis (AIS) is a common and progressive spinal deformity in children that exhibits striking sexual dimorphism, with girls at more than fivefold greater risk of severe disease compared to boys. Despite its medical impact, the molecular mechanisms that drive AIS are largely unknown. We previously defined a female-specific AIS genetic risk locus in an enhancer near the PAX1 gene. Here, we sought to define the roles of PAX1 and newly identified AIS-associated genes in the developmental mechanism of AIS. In a genetic study of 10,519 individuals with AIS and 93,238 unaffected controls, significant association was identified with a variant in COL11A1 encoding collagen (α1) XI (rs3753841; NM_080629.2_c.4004C>T; p.(Pro1335Leu); p=7.07E-11, OR = 1.118). Using CRISPR mutagenesis we generated Pax1 knockout mice (Pax1-/-). In postnatal spines we found that PAX1 and collagen (α1) XI protein both localize within the intervertebral disc-vertebral junction region encompassing the growth plate, with less collagen (α1) XI detected in Pax1-/- spines compared to wild-type. By genetic targeting we found that wild-type Col11a1 expression in costal chondrocytes suppresses expression of Pax1 and of Mmp3, encoding the matrix metalloproteinase 3 enzyme implicated in matrix remodeling. However, the latter suppression was abrogated in the presence of the AIS-associated COL11A1P1335L mutant. Further, we found that either knockdown of the estrogen receptor gene Esr2 or tamoxifen treatment significantly altered Col11a1 and Mmp3 expression in chondrocytes. We propose a new molecular model of AIS pathogenesis wherein genetic variation and estrogen signaling increase disease susceptibility by altering a PAX1-COL11a1-MMP3 signaling axis in spinal chondrocytes.
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Affiliation(s)
- Hao Yu
- Center for Translational Research, Scottish Rite for ChildrenDallasUnited States
| | - Anas M Khanshour
- Center for Translational Research, Scottish Rite for ChildrenDallasUnited States
| | - Aki Ushiki
- Department of Bioengineering and Therapeutic Sciences, University of California, San FranciscoSan FranciscoUnited States
- Institute for Human Genetics, University of California, San FranciscoSan FranciscoUnited States
| | - Nao Otomo
- Laboratory of Bone and Joint Diseases, RIKEN Center for Integrative Medical SciencesTokyoJapan
| | - Yoshinao Koike
- Laboratory of Bone and Joint Diseases, RIKEN Center for Integrative Medical SciencesTokyoJapan
- Laboratory for Statistical and Translational Genetics, RIKEN Center for Integrative Medical SciencesYokohamaJapan
| | - Elisabet Einarsdottir
- Science for Life Laboratory, Department of Gene Technology, KTH-Royal Institute of TechnologySolnaSweden
| | - Yanhui Fan
- School of Biomedical Sciences, The University of Hong KongHong Kong SARChina
| | - Lilian Antunes
- Department of Neurology, Washington University in St. LouisSt. LouisUnited States
| | - Yared H Kidane
- Center for Translational Research, Scottish Rite for ChildrenDallasUnited States
| | - Reuel Cornelia
- Center for Translational Research, Scottish Rite for ChildrenDallasUnited States
| | - Rory R Sheng
- Department of Bioengineering and Therapeutic Sciences, University of California, San FranciscoSan FranciscoUnited States
- Institute for Human Genetics, University of California, San FranciscoSan FranciscoUnited States
| | - Yichi Zhang
- Department of Bioengineering and Therapeutic Sciences, University of California, San FranciscoSan FranciscoUnited States
- Institute for Human Genetics, University of California, San FranciscoSan FranciscoUnited States
- School of Pharmaceutical Sciences, Tsinghua UniversityBeijingChina
| | - Jimin Pei
- Department of Biophysics, University of Texas Southwestern Medical CenterDallasUnited States
| | - Nick V Grishin
- Department of Biophysics, University of Texas Southwestern Medical CenterDallasUnited States
| | - Bret M Evers
- Department of Pathology, University of Texas Southwestern Medical CenterDallasUnited States
- Department of Ophthalmology, University of Texas Southwestern Medical CenterDallasUnited States
| | - Jason Pui Yin Cheung
- Department of Orthopaedics and Traumatology LKS Faculty of Medicine, The University of Hong KongHong Kong SARChina
| | - John A Herring
- Department of Orthopedic Surgery, Scottish Rite for ChildrenDallasUnited States
- Department of Orthopaedic Surgery, University of Texas Southwestern Medical CenterDallasUnited States
| | - Chikashi Terao
- Laboratory for Statistical and Translational Genetics, RIKEN Center for Integrative Medical SciencesYokohamaJapan
| | - You-qiang Song
- School of Biomedical Sciences, The University of Hong KongHong Kong SARChina
| | - Christina A Gurnett
- Department of Neurology, Washington University in St. LouisSt. LouisUnited States
| | - Paul Gerdhem
- Department of Surgical Sciences, Uppsala UniversityUppsalaSweden
- Department of Orthopaedics and Hand Surgery, Uppsala University HospitalUppsalaSweden
- Department of Clinical Science, Intervention & Technology (CLINTEC), Karolinska Institutet, Stockholm, Uppsala UniversityUppsalaSweden
| | - Shiro Ikegawa
- Laboratory of Bone and Joint Diseases, RIKEN Center for Integrative Medical SciencesTokyoJapan
| | - Jonathan J Rios
- Center for Translational Research, Scottish Rite for ChildrenDallasUnited States
- Department of Orthopaedic Surgery, University of Texas Southwestern Medical CenterDallasUnited States
- Eugene McDermott Center for Human Growth and Development, University of Texas Southwestern Medical CenterDallasUnited States
- Department of Pediatrics, University of Texas Southwestern Medical CenterDallasUnited States
| | - Nadav Ahituv
- Department of Bioengineering and Therapeutic Sciences, University of California, San FranciscoSan FranciscoUnited States
- Institute for Human Genetics, University of California, San FranciscoSan FranciscoUnited States
| | - Carol A Wise
- Center for Translational Research, Scottish Rite for ChildrenDallasUnited States
- Department of Orthopaedic Surgery, University of Texas Southwestern Medical CenterDallasUnited States
- Eugene McDermott Center for Human Growth and Development, University of Texas Southwestern Medical CenterDallasUnited States
- Department of Pediatrics, University of Texas Southwestern Medical CenterDallasUnited States
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4
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Terhune E, Heyn P, Piper C, Wethey C, Monley A, Cuevas M, Hadley Miller N. Association between genetic polymorphisms and risk of adolescent idiopathic scoliosis in case-control studies: a systematic review. J Med Genet 2024; 61:196-206. [PMID: 37696603 DOI: 10.1136/jmg-2022-108993] [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: 10/17/2022] [Accepted: 07/09/2023] [Indexed: 09/13/2023]
Abstract
BACKGROUND Adolescent idiopathic scoliosis (AIS) is a structural lateral spinal curvature of ≥10° with rotation. Approximately 2%-3% of children across populations are affected with AIS, and this condition is responsible for ~$3 billion in costs within the USA. Although AIS is believed to have a strong genetic contribution, clinical translation of identified genetic variants has stalled. METHODS The databases MEDLINE (via PubMed), Embase, Google Scholar and Ovid MEDLINE were searched and limited to articles in English. Title and abstract, full-text and data extraction screening was conducted through Covidence, followed by data transfer to a custom REDCap database. Studies containing variant-level data using genome-wide methodology as well as validation studies of genome-wide methods were considered. Quality assessment was conducted using Q-Genie. RESULTS 33 studies were included, including 9 genome-wide association studies, 4 whole exome sequencing and 20 validation studies. Combined, these studies included data from >35,000 cases and >67,000 controls, not including validation cohorts. Additionally, results from six meta-analyses containing novel cohorts were also reported. All included study cohorts were from populations of primarily East Asian or Caucasian descent. Quality assessment found that overall study quality was high and control group selection was moderate. The highest number of reported associations were in single nucleotide polymorphisms (SNPs) in or near LBX1, LBX1-AS1, GPR126/ADGRG6 or BNC2. CONCLUSION AIS risk may be influenced by specific SNPs, particularly those in/near LBX1 and GPR126. Translatability of study findings is unknown due to an underrepresentation of most ethnic groups as well as few identified genome-wide studies. Further studies may benefit from increased cohort diversity and thorough evaluation of control cohort groups.
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Affiliation(s)
- Elizabeth Terhune
- Department of Orthopedics, University of Colorado Denver-Anschutz Medical Campus, Aurora, Colorado, USA
| | - Patricia Heyn
- Department of Orthopedics, University of Colorado Denver-Anschutz Medical Campus, Aurora, Colorado, USA
| | - Christi Piper
- Department of Orthopedics, University of Colorado Denver-Anschutz Medical Campus, Aurora, Colorado, USA
| | - Cambria Wethey
- Department of Orthopedics, University of Colorado Denver-Anschutz Medical Campus, Aurora, Colorado, USA
| | - Anna Monley
- Department of Orthopedics, University of Colorado Denver-Anschutz Medical Campus, Aurora, Colorado, USA
| | - Melissa Cuevas
- Department of Orthopedics, University of Colorado Denver-Anschutz Medical Campus, Aurora, Colorado, USA
| | - Nancy Hadley Miller
- Department of Orthopedics, University of Colorado Denver-Anschutz Medical Campus, Aurora, Colorado, USA
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5
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Ru L, Zheng H, Lian W, Zhao S, Fan Q. Knowledge mapping of idiopathic scoliosis genes and research hotspots (2002-2022): a bibliometric analysis. Front Pediatr 2023; 11:1177983. [PMID: 38111628 PMCID: PMC10725947 DOI: 10.3389/fped.2023.1177983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Accepted: 11/06/2023] [Indexed: 12/20/2023] Open
Abstract
Background The etiology of idiopathic scoliosis (IS) remains unclear. Gene-based studies on genetic etiology and molecular mechanisms have improved our understanding of IS and guided treatment and diagnosis. Therefore, it is imperative to explicate and demarcate the preponderant areas of inquiry, key scholars, and their aggregate scholarly output, in addition to the collaborative associations amongst publications or researchers. Methods Documents were retrieved from the Web of Science Core Collection (WoSCC) with the following criteria: TS = ("idiopathic scoliosis" AND gene) refined by search operators (genomic OR "hereditary substance" OR "germ plasm" OR Cistrons OR genetics OR genetic OR genes OR Polygenic OR genotype OR genome OR allele OR polygenes OR Polygene) AND DOCUMENT TYPES (ARTICLE OR REVIEW), and the timespan of 2002-01-01 to 2022-11-26. The online bibliometric analysis platform (bibliometric), bibliographic item co-occurrence matrix builder (BICOMB), CiteSpace 6.1. R6 and VOS viewer were used to evaluate articles for publications, nations, institutions, journals, references, knowledge bases, keywords, and research hotspots. Results A total of 479 documents were retrieved from WoSCC. Fourty-four countries published relevant articles. The country with the most significant number of articles was China, and the institution with the most significant number of articles was Nanjing University. Citation analysis formed eight meaningful clusters and 16 high-frequency keywords. (2) The citation knowledge map included single nucleotide polymorphisms, whole exome sequencing, axonal dynamin, drug development, mesenchymal stem cells, dietary intake, curve progression, zebrafish development model, extracellular matrix, and rare variants were the current research hotspots and frontiers. Conclusions Recent research has focused on IS-related genes, whereas the extracellular matrix and unusual variants are research frontiers and hotspots. Functional analysis of susceptibility genes will prove to be valuable for identifying this disease.
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Affiliation(s)
- Like Ru
- School of Pediatrics, Henan University of Chinese Medicine, Zhengzhou, China
| | - Hong Zheng
- The First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, China
- School of Pediatrics, Henan University of Chinese Medicine, Zhengzhou, China
| | - Wenjun Lian
- The First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, China
| | - Shuying Zhao
- The First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, China
| | - Qimeng Fan
- The First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, China
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6
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Yu H, Khanshour AM, Ushiki A, Otomo N, Koike Y, Einarsdottir E, Fan Y, Antunes L, Kidane YH, Cornelia R, Sheng R, Zhang Y, Pei J, Grishin NV, Evers BM, Cheung JPY, Herring JA, Terao C, Song YQ, Gurnett CA, Gerdhem P, Ikegawa S, Rios JJ, Ahituv N, Wise CA. Association of genetic variation in COL11A1 with adolescent idiopathic scoliosis. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.05.26.542293. [PMID: 37292598 PMCID: PMC10245954 DOI: 10.1101/2023.05.26.542293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Adolescent idiopathic scoliosis (AIS) is a common and progressive spinal deformity in children that exhibits striking sexual dimorphism, with girls at more than five-fold greater risk of severe disease compared to boys. Despite its medical impact, the molecular mechanisms that drive AIS are largely unknown. We previously defined a female-specific AIS genetic risk locus in an enhancer near the PAX1 gene. Here we sought to define the roles of PAX1 and newly-identified AIS-associated genes in the developmental mechanism of AIS. In a genetic study of 10,519 individuals with AIS and 93,238 unaffected controls, significant association was identified with a variant in COL11A1 encoding collagen (α1) XI (rs3753841; NM_080629.2_c.4004C>T; p.(Pro1335Leu); P=7.07e-11, OR=1.118). Using CRISPR mutagenesis we generated Pax1 knockout mice (Pax1-/-). In postnatal spines we found that PAX1 and collagen (α1) XI protein both localize within the intervertebral disc (IVD)-vertebral junction region encompassing the growth plate, with less collagen (α1) XI detected in Pax1-/- spines compared to wildtype. By genetic targeting we found that wildtype Col11a1 expression in costal chondrocytes suppresses expression of Pax1 and of Mmp3, encoding the matrix metalloproteinase 3 enzyme implicated in matrix remodeling. However, this suppression was abrogated in the presence of the AIS-associated COL11A1P1335L mutant. Further, we found that either knockdown of the estrogen receptor gene Esr2, or tamoxifen treatment, significantly altered Col11a1 and Mmp3 expression in chondrocytes. We propose a new molecular model of AIS pathogenesis wherein genetic variation and estrogen signaling increase disease susceptibility by altering a Pax1-Col11a1-Mmp3 signaling axis in spinal chondrocytes.
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Affiliation(s)
- Hao Yu
- Center for Pediatric Bone Biology and Translational Research, Scottish Rite for Children, Dallas, TX, USA
| | - Anas M Khanshour
- Center for Pediatric Bone Biology and Translational Research, Scottish Rite for Children, Dallas, TX, USA
| | - Aki Ushiki
- Department of Bioengineering and Therapeutic Sciences, University of California San Francisco, San Francisco, CA, USA
- Institute for Human Genetics, University of California San Francisco, San Francisco, CA, USA
| | - Nao Otomo
- Laboratory of Bone and Joint Diseases, RIKEN Center for Integrative Medical Sciences, Tokyo, JP
| | - Yoshinao Koike
- Laboratory of Bone and Joint Diseases, RIKEN Center for Integrative Medical Sciences, Tokyo, JP
- Laboratory for Statistical and Translational Genetics, RIKEN Center for Integrative Medical Sciences, Yokohama, JP
| | - Elisabet Einarsdottir
- Science for Life Laboratory, Department of Gene Technology, KTH-Royal Institute of Technology, Solna, SE
| | - Yanhui Fan
- School of Biomedical Sciences, The University of Hong Kong, Hong Kong SAR, CN
| | - Lilian Antunes
- Department of Neurology, Washington University in St. Louis, St. Louis, MO, USA
| | - Yared H Kidane
- Center for Pediatric Bone Biology and Translational Research, Scottish Rite for Children, Dallas, TX, USA
| | - Reuel Cornelia
- Center for Pediatric Bone Biology and Translational Research, Scottish Rite for Children, Dallas, TX, USA
| | - Rory Sheng
- Department of Bioengineering and Therapeutic Sciences, University of California San Francisco, San Francisco, CA, USA
- Institute for Human Genetics, University of California San Francisco, San Francisco, CA, USA
| | - Yichi Zhang
- Department of Bioengineering and Therapeutic Sciences, University of California San Francisco, San Francisco, CA, USA
- Institute for Human Genetics, University of California San Francisco, San Francisco, CA, USA
- School of Pharmaceutical Sciences, Tsinghua University, Beijing, CN
| | - Jimin Pei
- Department of Biophysics, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Nick V Grishin
- Department of Biophysics, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Bret M Evers
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX, USA
- Department of Ophthalmology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Jason Pui Yin Cheung
- Department of Orthopaedics and Traumatology LKS Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, CN
| | - John A Herring
- Department of Orthopedic Surgery, Scottish Rite for Children, Dallas, TX, USA
- Department of Orthopaedic Surgery, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Chikashi Terao
- Laboratory for Statistical and Translational Genetics, RIKEN Center for Integrative Medical Sciences, Yokohama, JP
| | - You-Qiang Song
- School of Biomedical Sciences, The University of Hong Kong, Hong Kong SAR, CN
| | - Christina A Gurnett
- Department of Neurology, Washington University in St. Louis, St. Louis, MO, USA
| | - Paul Gerdhem
- Department of Clinical Science, Intervention & Technology (CLINTEC), Karolinska Institutet, Stockholm, Uppsala University, Uppsala, SE
- Department of Surgical Sciences, Uppsala University and
- Department of Orthopaedics and Hand Surgery, Uppsala University Hospital, Uppsala, SE
| | - Shiro Ikegawa
- Laboratory of Bone and Joint Diseases, RIKEN Center for Integrative Medical Sciences, Tokyo, JP
| | - Jonathan J Rios
- Center for Pediatric Bone Biology and Translational Research, Scottish Rite for Children, Dallas, TX, USA
- Department of Orthopaedic Surgery, University of Texas Southwestern Medical Center, Dallas, TX, USA
- Eugene McDermott Center for Human Growth and Development, University of Texas Southwestern Medical Center, Dallas, TX, USA
- Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Nadav Ahituv
- Department of Bioengineering and Therapeutic Sciences, University of California San Francisco, San Francisco, CA, USA
- Institute for Human Genetics, University of California San Francisco, San Francisco, CA, USA
| | - Carol A Wise
- Center for Pediatric Bone Biology and Translational Research, Scottish Rite for Children, Dallas, TX, USA
- Department of Orthopaedic Surgery, University of Texas Southwestern Medical Center, Dallas, TX, USA
- Eugene McDermott Center for Human Growth and Development, University of Texas Southwestern Medical Center, Dallas, TX, USA
- Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, TX, USA
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7
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Marie-Hardy L, Courtin T, Pascal-Moussellard H, Zakine S, Brice A. The Whole-Exome Sequencing of a Cohort of 19 Families with Adolescent Idiopathic Scoliosis (AIS): Candidate Pathways. Genes (Basel) 2023; 14:2094. [PMID: 38003035 PMCID: PMC10671325 DOI: 10.3390/genes14112094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 11/09/2023] [Accepted: 11/15/2023] [Indexed: 11/26/2023] Open
Abstract
A significant genetic involvement has been known for decades to exist in adolescent idiopathic scoliosis (AIS), a spine deformity affecting 1-3% of the world population. However, though biomechanical and endocrinological theories have emerged, no clear pathophysiological explanation has been found. Data from the whole-exome sequencing performed on 113 individuals in 19 multi-generational families with AIS have been filtered and analyzed via interaction pathways and functional category analysis (Varaft, Bingo and Panther). The subsequent list of 2566 variants has been compared to the variants already described in the literature, with an 18% match rate. The familial analysis in two families reveals mutations in the BICD2 gene, supporting the involvement of the muscular system in AIS etiology. The cellular component analysis revealed significant enrichment in myosin-related and neuronal activity-related categories. All together, these results reinforce the suspected role of the neuronal and muscular systems, highlighting the calmodulin pathway and suggesting a role of DNA-binding activities in AIS physiopathology.
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Affiliation(s)
- Laura Marie-Hardy
- Brain Institute of Paris, 43-87 bd de l’Hôpital, 75013 Paris, France
| | - Thomas Courtin
- Brain Institute of Paris, 43-87 bd de l’Hôpital, 75013 Paris, France
| | | | - Serge Zakine
- Clinique Maussins Nollet, Ramsay Génerale de Santé, 67 Rue de Romainville, 75019 Paris, France;
| | - Alexis Brice
- Brain Institute of Paris, 43-87 bd de l’Hôpital, 75013 Paris, France
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8
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Lau RWL, Cheuk KY, Hung VWY, Yu FWP, Tam EMS, Wong LLN, Zhang J, Lee WYW, Cheng JCY, Lam TP, Lau AYC. Handgrip strength assessment at baseline in addition to bone parameters could potentially predict the risk of curve progression in adolescent idiopathic scoliosis. Front Pediatr 2023; 11:1258454. [PMID: 38027290 PMCID: PMC10655030 DOI: 10.3389/fped.2023.1258454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 10/16/2023] [Indexed: 12/01/2023] Open
Abstract
Introduction Adolescent idiopathic scoliosis (AIS) is characterized by deranged bone and muscle qualities, which are important prognostic factors for curve progression. This retrospective case-control study aims to investigate whether the baseline muscle parameters, in addition to the bone parameters, could predict curve progression in AIS. Methods The study included a cohort of 126 female patients diagnosed with AIS who were between the ages of 12 and 14 years old at their initial clinical visit. These patients were longitudinally followed up every 6 months (average 4.08 years) until they reached skeletal maturity. The records of these patients were thoroughly reviewed as part of the study. The participants were categorized into two sub-groups: the progressive AIS group (increase in Cobb angle of ≥6°) and the stable AIS group (increase in Cobb angle <6°). Clinical and radiological assessments were conducted on each group. Results Cobb angle increase of ≥6° was observed in 44 AIS patients (34.9%) prior to skeletal maturity. A progressive AIS was associated with decreased skeletal maturity and weight, lower trunk lean mass (5.7%, p = 0.027) and arm lean mass (8.9%, p < 0.050), weaker dominant handgrip strength (8.8%, p = 0.027), deranged cortical compartment [lower volumetric bone mineral density (vBMD) by 6.5%, p = 0.002], and lower bone mechanical properties [stiffness and estimated failure load lowered by 13.2% (p = 0.005) and 12.5% (p = 0.004)]. The best cut-off threshold of maximum dominant handgrip strength is 19.75 kg for distinguishing progressive AIS from stable AIS (75% sensitivity and 52.4% specificity, p = 0.011). Discussion Patients with progressive AIS had poorer muscle and bone parameters than patients with stable AIS. The implementation of a cut-off threshold in the baseline dominant handgrip strength could potentially be used as an additional predictor, in addition to bone parameters, for identifying individuals with AIS who are at higher risk of experiencing curve progression.
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Affiliation(s)
- Rufina Wing Lum Lau
- School of Medical and Health Sciences, Tung Wah College, Hong Kong, Hong Kong SAR, China
- Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
- SH Ho Scoliosis Research Laboratory, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
- Joint Scoliosis Research Center of the Chinese University of Hong Kong and Nanjing University, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Ka Yee Cheuk
- Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
- SH Ho Scoliosis Research Laboratory, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
- Joint Scoliosis Research Center of the Chinese University of Hong Kong and Nanjing University, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Vivian Wing Yin Hung
- Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
- Bone Quality and Health Centre, Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Fiona Wai Ping Yu
- Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
- SH Ho Scoliosis Research Laboratory, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
- Joint Scoliosis Research Center of the Chinese University of Hong Kong and Nanjing University, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
- Bone Quality and Health Centre, Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Elisa Man Shan Tam
- Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
- SH Ho Scoliosis Research Laboratory, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
- Joint Scoliosis Research Center of the Chinese University of Hong Kong and Nanjing University, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Lyn Lee Ning Wong
- Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
- SH Ho Scoliosis Research Laboratory, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
- Joint Scoliosis Research Center of the Chinese University of Hong Kong and Nanjing University, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
- Bone Quality and Health Centre, Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Jiajun Zhang
- SH Ho Scoliosis Research Laboratory, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
- Joint Scoliosis Research Center of the Chinese University of Hong Kong and Nanjing University, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Wayne Yuk Wai Lee
- Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
- SH Ho Scoliosis Research Laboratory, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
- Joint Scoliosis Research Center of the Chinese University of Hong Kong and Nanjing University, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Jack Chun Yiu Cheng
- Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
- SH Ho Scoliosis Research Laboratory, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
- Joint Scoliosis Research Center of the Chinese University of Hong Kong and Nanjing University, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
- Bone Quality and Health Centre, Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Tsz Ping Lam
- Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
- SH Ho Scoliosis Research Laboratory, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
- Joint Scoliosis Research Center of the Chinese University of Hong Kong and Nanjing University, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
- Bone Quality and Health Centre, Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Adam Yiu Chung Lau
- Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
- SH Ho Scoliosis Research Laboratory, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
- Joint Scoliosis Research Center of the Chinese University of Hong Kong and Nanjing University, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
- Bone Quality and Health Centre, Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
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9
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Petrosyan E, Fares J, Lesniak MS, Koski TR, El Tecle NE. Biological principles of adult degenerative scoliosis. Trends Mol Med 2023; 29:740-752. [PMID: 37349248 DOI: 10.1016/j.molmed.2023.05.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 05/23/2023] [Accepted: 05/26/2023] [Indexed: 06/24/2023]
Abstract
The global aging population has led to an increase in geriatric diseases, including adult degenerative scoliosis (ADS). ADS is a spinal deformity affecting adults, particularly females. It is characterized by asymmetric intervertebral disc and facet joint degeneration, leading to spinal imbalance that can result in severe pain and neurological deficits, thus significantly reducing the quality of life. Despite improved management, molecular mechanisms driving ADS remain unclear. Current literature primarily comprises epidemiological and clinical studies. Here, we investigate the molecular mechanisms underlying ADS, with a focus on angiogenesis, inflammation, extracellular matrix remodeling, osteoporosis, sarcopenia, and biomechanical stress. We discuss current limitations and challenges in the field and highlight potential translational applications that may arise with a better understanding of these mechanisms.
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Affiliation(s)
- Edgar Petrosyan
- Department of Neurological Surgery, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Jawad Fares
- Department of Neurological Surgery, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Maciej S Lesniak
- Department of Neurological Surgery, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Tyler R Koski
- Department of Neurological Surgery, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Najib E El Tecle
- Department of Neurological Surgery, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA.
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10
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Lin MR, Chou PH, Huang KJ, Ting J, Liu CY, Chou WH, Lin GH, Chang JG, Ikegawa S, Wang ST, Chang WC. Whole-Exome Sequencing Identifies Genetic Variants for Severe Adolescent Idiopathic Scoliosis in a Taiwanese Population. J Pers Med 2022; 13:jpm13010032. [PMID: 36675693 PMCID: PMC9865588 DOI: 10.3390/jpm13010032] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 12/12/2022] [Accepted: 12/13/2022] [Indexed: 12/28/2022] Open
Abstract
Adolescent idiopathic scoliosis (AIS) is a three-dimensional spinal curvature deformity that appears in the adolescent period. In this study, we performed whole-exome sequencing on 11 unrelated Taiwanese patients with a Cobb's angle greater than 40 degrees. Our results identified more than 200 potential pathogenic rare variants, however, most of which were carried only by one individual. By in silico pathogenicity annotation studies, we found that TTN, CLCN1, and SOX8 were the most important genes, as multiple pathogenic variants were within these genes. Furthermore, biological functional annotation indicated critical roles of these AIS candidate genes in the skeletal muscle. Importantly, a pathogenic variant on SOX8 was shared by over 35% of the patients. These results highlighted TTN, CLCN1, and SOX8 as the most likely susceptibility genes for severe AIS.
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Affiliation(s)
- Min-Rou Lin
- Department of Clinical Pharmacy, School of Pharmacy, Taipei Medical University, Taipei 110, Taiwan
| | - Po-Hsin Chou
- Department of Orthopedics and Traumatology, Taipei Veterans General Hospital, Taipei 112, Taiwan
- School of Medicine, National Yang Ming Chiao Tung University, Taipei 112, Taiwan
| | - Kuei-Jung Huang
- Department of Clinical Pharmacy, School of Pharmacy, Taipei Medical University, Taipei 110, Taiwan
| | - Jafit Ting
- Department of Clinical Pharmacy, School of Pharmacy, Taipei Medical University, Taipei 110, Taiwan
| | - Chia-Ying Liu
- Department of Clinical Pharmacy, School of Pharmacy, Taipei Medical University, Taipei 110, Taiwan
| | - Wan-Hsuan Chou
- Department of Clinical Pharmacy, School of Pharmacy, Taipei Medical University, Taipei 110, Taiwan
| | - Gan-Hong Lin
- Master Program in Clinical Genomics and Proteomics, School of Pharmacy, Taipei Medical University, Taipei 110, Taiwan
| | - Jan-Gowth Chang
- Center for Precision Medicine, China Medical University Hospital, Taichung 404, Taiwan
- School of Medicine, China Medical University, Taichung 404, Taiwan
| | - Shiro Ikegawa
- Department of Clinical Pharmacy, School of Pharmacy, Taipei Medical University, Taipei 110, Taiwan
- Laboratory for Bone and Joint Diseases, RIKEN Center for Integrative Medical Science (IMS, RIKEN), Tokyo 108-8639, Japan
| | - Shih-Tien Wang
- Department of Orthopedics and Traumatology, Taipei Veterans General Hospital, Taipei 112, Taiwan
- School of Medicine, National Yang Ming Chiao Tung University, Taipei 112, Taiwan
- Kinmen Hospital, Ministry of Health and Welfare, Kinmen 891, Taiwan
- Correspondence: (S.-T.W.); (W.-C.C.)
| | - Wei-Chiao Chang
- Department of Clinical Pharmacy, School of Pharmacy, Taipei Medical University, Taipei 110, Taiwan
- Master Program in Clinical Genomics and Proteomics, School of Pharmacy, Taipei Medical University, Taipei 110, Taiwan
- Integrative Research Center in Critical Care, Wan Fang Hospital, Taipei Medical University, Taipei 116, Taiwan
- Correspondence: (S.-T.W.); (W.-C.C.)
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11
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Xie H, Li M, Kang Y, Zhang J, Zhao C. Zebrafish: an important model for understanding scoliosis. Cell Mol Life Sci 2022; 79:506. [PMID: 36059018 PMCID: PMC9441191 DOI: 10.1007/s00018-022-04534-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 08/05/2022] [Accepted: 08/19/2022] [Indexed: 02/06/2023]
Abstract
Scoliosis is a common spinal deformity that considerably affects the physical and psychological health of patients. Studies have shown that genetic factors play an important role in scoliosis. However, its etiopathogenesis remain unclear, partially because of the genetic heterogeneity of scoliosis and the lack of appropriate model systems. Recently, the development of efficient gene editing methods and high-throughput sequencing technology has made it possible to explore the underlying pathological mechanisms of scoliosis. Owing to their susceptibility for developing scoliosis and high genetic homology with human, zebrafish are increasingly being used as a model for scoliosis in developmental biology, genetics, and clinical medicine. Here, we summarize the recent advances in scoliosis research on zebrafish and discuss the prospects of using zebrafish as a scoliosis model.
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Affiliation(s)
- Haibo Xie
- Affiliated Hospital of Guangdong Medical University and Key Laboratory of Zebrafish Model for Development and Disease of Guangdong Medical University, Zhanjiang, 524001, China.,Institute of Evolution and Marine Biodiversity, Ocean University of China, Qingdao, 266003, China.,Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266003, China.,Sars-Fang Centre, Ministry of Education Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China
| | - Mingzhu Li
- Affiliated Hospital of Guangdong Medical University and Key Laboratory of Zebrafish Model for Development and Disease of Guangdong Medical University, Zhanjiang, 524001, China
| | - Yunsi Kang
- Institute of Evolution and Marine Biodiversity, Ocean University of China, Qingdao, 266003, China.,Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266003, China.,Sars-Fang Centre, Ministry of Education Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China
| | - Jingjing Zhang
- Affiliated Hospital of Guangdong Medical University and Key Laboratory of Zebrafish Model for Development and Disease of Guangdong Medical University, Zhanjiang, 524001, China. .,The Marine Biomedical Research Institute of Guangdong Zhanjiang, Zhanjiang, 524023, China.
| | - Chengtian Zhao
- Institute of Evolution and Marine Biodiversity, Ocean University of China, Qingdao, 266003, China. .,Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266003, China. .,Sars-Fang Centre, Ministry of Education Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China.
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12
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Meyer-Miner A, Van Gennip JL, Henke K, Harris MP, Ciruna B. using a new katnb1 scoliosis model. iScience 2022; 25:105028. [PMID: 36105588 PMCID: PMC9464966 DOI: 10.1016/j.isci.2022.105028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 04/15/2022] [Accepted: 08/23/2022] [Indexed: 11/18/2022] Open
Affiliation(s)
- Anne Meyer-Miner
- Program in Developmental & Stem Cell Biology, The Hospital for Sick Children, 686 Bay Street, Toronto, ON M5G 0A4, Canada
- Department of Molecular Genetics, The University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Jenica L.M. Van Gennip
- Program in Developmental & Stem Cell Biology, The Hospital for Sick Children, 686 Bay Street, Toronto, ON M5G 0A4, Canada
- Department of Molecular Genetics, The University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Katrin Henke
- Department of Orthopedic Research, Boston Children’s Hospital, Department of Genetics, Harvard Medical School, Boston, MA 02115, USA
- Department of Orthopaedics and Department of Human Genetics, Emory University, Atlanta, GA 30322, USA
| | - Matthew P. Harris
- Department of Orthopedic Research, Boston Children’s Hospital, Department of Genetics, Harvard Medical School, Boston, MA 02115, USA
| | - Brian Ciruna
- Program in Developmental & Stem Cell Biology, The Hospital for Sick Children, 686 Bay Street, Toronto, ON M5G 0A4, Canada
- Department of Molecular Genetics, The University of Toronto, Toronto, ON M5S 1A8, Canada
- Corresponding author
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13
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Nada D, Julien C, Papillon-Cavanagh S, Majewski J, Elbakry M, Elremaly W, Samuels ME, Moreau A. Identification of FAT3 as a new candidate gene for adolescent idiopathic scoliosis. Sci Rep 2022; 12:12298. [PMID: 35853984 PMCID: PMC9296578 DOI: 10.1038/s41598-022-16620-6] [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: 02/15/2022] [Accepted: 07/12/2022] [Indexed: 11/24/2022] Open
Abstract
In an effort to identify rare alleles associated with adolescent idiopathic scoliosis (AIS) whole-exome sequencing was performed on a discovery cohort of 73 unrelated patients and 70 age-and sex matched controls, all of French-Canadian ancestry. A collapsing gene burden test was performed to analyze rare protein-altering variants using case–control statistics. Since no single gene achieved statistical significance, targeted exon sequencing was performed for 24 genes with the smallest p values, in an independent replication cohort of unrelated severely affected females with AIS and sex-matched controls (N = 96 each). An excess of rare, potentially protein-altering variants was noted in one particular gene, FAT3, although it did not achieve statistical significance. Independently, we sequenced the exomes of all members of a rare multiplex family of three affected sisters and unaffected parents. All three sisters were compound heterozygous for two rare protein-altering variants in FAT3. The parents were single heterozygotes for each variant. The two variants in the family were also present in our discovery cohort. A second validation step was done, using another independent replication cohort of 258 unrelated AIS patients having reach their skeletal maturity and 143 healthy controls to genotype nine FAT3 gene variants, including the two variants previously identified in the multiplex family: p.L517S (rs139595720) and p.L4544F (rs187159256). Interestingly, two FAT3 variants, rs139595720 (genotype A/G) and rs80293525 (genotype C/T), were enriched in severe scoliosis cases (4.5% and 2.7% respectively) compared to milder cases (1.4% and 0.7%) and healthy controls (1.6% and 0.8%). Our results implicate FAT3 as a new candidate gene in the etiology of AIS.
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Affiliation(s)
- Dina Nada
- Viscogliosi Laboratory in Molecular Genetics of Musculoskeletal Diseases, Sainte-Justine University Hospital Research Center, (room 2.17.027), 3175 Chemin de la Côte-Ste-Catherine, Montreal, QC, H3T 1C5, Canada.,Pharmacology and Biochemistry Department, Faculty of Pharmacy, The British University in Egypt, Cairo, Egypt
| | - Cédric Julien
- Viscogliosi Laboratory in Molecular Genetics of Musculoskeletal Diseases, Sainte-Justine University Hospital Research Center, (room 2.17.027), 3175 Chemin de la Côte-Ste-Catherine, Montreal, QC, H3T 1C5, Canada.,Injury Repair Recovery Program, McGill University Health Center Research Institute, Montreal, QC, Canada
| | | | - Jacek Majewski
- Department of Human Genetics, McGill University, Montreal, QC, Canada
| | - Mohamed Elbakry
- Viscogliosi Laboratory in Molecular Genetics of Musculoskeletal Diseases, Sainte-Justine University Hospital Research Center, (room 2.17.027), 3175 Chemin de la Côte-Ste-Catherine, Montreal, QC, H3T 1C5, Canada.,Biochemistry Division, Chemistry Department, Faculty of Science, Tanta University, Tanta, Egypt
| | - Wesam Elremaly
- Viscogliosi Laboratory in Molecular Genetics of Musculoskeletal Diseases, Sainte-Justine University Hospital Research Center, (room 2.17.027), 3175 Chemin de la Côte-Ste-Catherine, Montreal, QC, H3T 1C5, Canada.,Department of Biochemistry and Molecular Medicine, Faculty of Medicine, Université de Montréal, Montreal, QC, Canada
| | - Mark E Samuels
- Sainte-Justine University Hospital Research Center, Montreal, QC, Canada.,Department of Medicine, Faculty of Medicine, Université de Montréal, Montreal, QC, Canada
| | - Alain Moreau
- Viscogliosi Laboratory in Molecular Genetics of Musculoskeletal Diseases, Sainte-Justine University Hospital Research Center, (room 2.17.027), 3175 Chemin de la Côte-Ste-Catherine, Montreal, QC, H3T 1C5, Canada. .,Department of Biochemistry and Molecular Medicine, Faculty of Medicine, Université de Montréal, Montreal, QC, Canada. .,Department of Stomatology, Faculty of Dentistry, Université de Montréal, Montreal, QC, Canada.
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14
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Terhune EA, Heyn PC, Piper CR, Hadley-Miller N. Genetic variants associated with the occurrence and progression of adolescent idiopathic scoliosis: a systematic review protocol. Syst Rev 2022; 11:118. [PMID: 35681176 PMCID: PMC9178937 DOI: 10.1186/s13643-022-01991-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Accepted: 05/27/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Adolescent idiopathic scoliosis (AIS) is a structural lateral spinal curvature of ≥ 10° with rotation. Approximately 2-3% of children in most populations are affected with AIS, and this condition is responsible for approximately $1.1 billion in surgical costs to the US healthcare system. Although a genetic factor for AIS has been demonstrated for decades, with multiple potentially contributory loci identified across populations, treatment options have remained limited to bracing and surgery. METHODS The databases MEDLINE (via PubMed), Embase, Google Scholar, and Ovid MEDLINE will be searched and limited to articles in English. We will conduct title and abstract, full-text, and data extraction screening through Covidence, followed by data transfer to a custom REDCap database. Quality assessment will be confirmed by multiple reviewers. Studies containing variant-level data (i.e., GWAS, exome sequencing) for AIS subjects and controls will be considered. Outcomes of interest will include presence/absence of AIS, scoliosis curve severity, scoliosis curve progression, and presence/absence of nucleotide-level variants. Analyses will include odds ratios and relative risk assessments, and subgroup analysis (i.e., males vs. females, age groups) may be applied. Quality assessment tools will include GRADE and Q-Genie for genetic studies. DISCUSSION In this systematic review, we seek to evaluate the quality of genetic evidence for AIS to better inform research efforts, to ultimately improve the quality of patient care and diagnosis. SYSTEMATIC REVIEW REGISTRATION PROSPERO registration #CRD42021243253.
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Affiliation(s)
- Elizabeth A. Terhune
- Department of Orthopedics, University of Colorado Anschutz Medical Campus, Aurora, CO USA
| | - Patricia C. Heyn
- Department of Physical Medicine and Rehabilitation, University of Colorado Anschutz Medical Campus, Aurora, CO USA
- Center for Gait and Movement Analysis, Children’s Hospital Colorado, Aurora, CO USA
- Cochrane US University of Colorado Anschutz Medical Campus, Aurora, CO USA
| | - Christi R. Piper
- Strauss Health Sciences Library, University of Colorado Anschutz Medical Campus, Aurora, CO USA
| | - Nancy Hadley-Miller
- Department of Orthopedics, University of Colorado Anschutz Medical Campus, Aurora, CO USA
- Musculoskeletal Research Center, Children’s Hospital Colorado, Aurora, CO USA
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15
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Altered mechanotransduction in adolescent idiopathic scoliosis osteoblasts: an exploratory in vitro study. Sci Rep 2022; 12:1846. [PMID: 35115632 PMCID: PMC8813918 DOI: 10.1038/s41598-022-05918-0] [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: 05/03/2021] [Accepted: 01/14/2022] [Indexed: 11/16/2022] Open
Abstract
Adolescent idiopathic scoliosis (AIS) is the most prevalent pediatric spinal deformity. We previously demonstrated elongated cilia and an altered molecular mechanosensory response in AIS osteoblasts. The purpose of this exploratory study was to characterize the mechanosensory defect occurring in AIS osteoblasts. We found that cilia length dynamics in response to flow significantly differ in AIS osteoblasts compared to control cells. In addition, strain-induced rearrangement of actin filaments was compromised resulting in a failure of AIS osteoblasts to position or elongate in function of the bidirectional-applied flow. Contrary to control osteoblasts, fluid flow had an inhibitory effect on AIS cell migration. Moreover, flow induced an increase in secreted VEGF-A and PGE2 in control but not AIS cells. Collectively our data demonstrated that in addition to the observed primary cilium defects, there are cytoskeletal abnormalities correlated to impaired mechanotransduction in AIS. Thus, we propose that the AIS etiology could be a result of generalized defects in cellular mechanotransduction given that an adolescent growing spine is under constant stimulation for growth and bone remodeling in response to applied mechanical forces. Recognition of an altered mechanotransduction as part of the AIS pathomechanism must be considered in the conception and development of more effective bracing treatments.
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16
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Wang Y, Troutwine BR, Zhang H, Gray RS. The axonemal dynein heavy chain 10 gene is essential for monocilia motility and spine alignment in zebrafish. Dev Biol 2022; 482:82-90. [PMID: 34915022 PMCID: PMC8792996 DOI: 10.1016/j.ydbio.2021.12.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 11/30/2021] [Accepted: 12/01/2021] [Indexed: 02/07/2023]
Abstract
Adolescent idiopathic scoliosis (AIS) is a common pediatric musculoskeletal disorder worldwide, characterized by atypical spine curvatures in otherwise healthy children. Human genetic studies have identified candidate genes associated with AIS, however, only a few of these have been shown to recapitulate adult-viable scoliosis in animal models. Using an F0 CRISPR screening approach in zebrafish, we demonstrate that disruption of the dynein axonemal heavy chain 10 (dnah10) gene results in recessive adult-viable scoliosis in zebrafish. Using a stably segregating dnah10 mutant zebrafish, we showed that the ependymal monocilia lining the hindbrain and spinal canal displayed reduced beat frequency, which was correlated with the disassembly of the Reissner fiber and the onset of body curvatures. Taken together, these results suggest that monocilia function in larval zebrafish contributes to the polymerization of the Reissner fiber and straightening of the body axis.
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Affiliation(s)
- Yunjia Wang
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China; Department of Nutritional Sciences, 200 W 24th Street, The University of Texas at Austin, Austin, TX, 78712, USA
| | - Benjamin R Troutwine
- Department of Nutritional Sciences, 200 W 24th Street, The University of Texas at Austin, Austin, TX, 78712, USA
| | - Hongqi Zhang
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China.
| | - Ryan S Gray
- Department of Nutritional Sciences, 200 W 24th Street, The University of Texas at Austin, Austin, TX, 78712, USA.
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17
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Muñoz-Montecinos C, Romero A, Sepúlveda V, Vira MÁ, Fehrmann-Cartes K, Marcellini S, Aguilera F, Caprile T, Fuentes R. Turning the Curve Into Straight: Phenogenetics of the Spine Morphology and Coordinate Maintenance in the Zebrafish. Front Cell Dev Biol 2022; 9:801652. [PMID: 35155449 PMCID: PMC8826430 DOI: 10.3389/fcell.2021.801652] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Accepted: 12/31/2021] [Indexed: 12/13/2022] Open
Abstract
The vertebral column, or spine, provides mechanical support and determines body axis posture and motion. The most common malformation altering spine morphology and function is adolescent idiopathic scoliosis (AIS), a three-dimensional spinal deformity that affects approximately 4% of the population worldwide. Due to AIS genetic heterogenicity and the lack of suitable animal models for its study, the etiology of this condition remains unclear, thus limiting treatment options. We here review current advances in zebrafish phenogenetics concerning AIS-like models and highlight the recently discovered biological processes leading to spine malformations. First, we focus on gene functions and phenotypes controlling critical aspects of postembryonic aspects that prime in spine architecture development and straightening. Second, we summarize how primary cilia assembly and biomechanical stimulus transduction, cerebrospinal fluid components and flow driven by motile cilia have been implicated in the pathogenesis of AIS-like phenotypes. Third, we highlight the inflammatory responses associated with scoliosis. We finally discuss recent innovations and methodologies for morphometrically characterize and analyze the zebrafish spine. Ongoing phenotyping projects are expected to identify novel and unprecedented postembryonic gene functions controlling spine morphology and mutant models of AIS. Importantly, imaging and gene editing technologies are allowing deep phenotyping studies in the zebrafish, opening new experimental paradigms in the morphometric and three-dimensional assessment of spinal malformations. In the future, fully elucidating the phenogenetic underpinnings of AIS etiology in zebrafish and humans will undoubtedly lead to innovative pharmacological treatments against spinal deformities.
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Affiliation(s)
- Carlos Muñoz-Montecinos
- Departamento de Biología Celular, Facultad de Ciencias Biológicas, Universidad de Concepción, Concepción, Chile
- Grupo de Procesos en Biología del Desarrollo (GDeP), Facultad de Ciencias Biológicas, Universidad de Concepción, Concepción, Chile
| | - Adrián Romero
- Departamento de Biología Celular, Facultad de Ciencias Biológicas, Universidad de Concepción, Concepción, Chile
- Grupo de Procesos en Biología del Desarrollo (GDeP), Facultad de Ciencias Biológicas, Universidad de Concepción, Concepción, Chile
| | - Vania Sepúlveda
- Departamento de Biología Celular, Facultad de Ciencias Biológicas, Universidad de Concepción, Concepción, Chile
- Grupo de Procesos en Biología del Desarrollo (GDeP), Facultad de Ciencias Biológicas, Universidad de Concepción, Concepción, Chile
| | - María Ángela Vira
- Departamento de Biología Celular, Facultad de Ciencias Biológicas, Universidad de Concepción, Concepción, Chile
- Grupo de Procesos en Biología del Desarrollo (GDeP), Facultad de Ciencias Biológicas, Universidad de Concepción, Concepción, Chile
| | - Karen Fehrmann-Cartes
- Núcleo de Investigaciones Aplicadas en Ciencias Veterinarias y Agronómicas, Universidad de las Américas, Concepción, Chile
| | - Sylvain Marcellini
- Departamento de Biología Celular, Facultad de Ciencias Biológicas, Universidad de Concepción, Concepción, Chile
- Grupo de Procesos en Biología del Desarrollo (GDeP), Facultad de Ciencias Biológicas, Universidad de Concepción, Concepción, Chile
| | - Felipe Aguilera
- Grupo de Procesos en Biología del Desarrollo (GDeP), Facultad de Ciencias Biológicas, Universidad de Concepción, Concepción, Chile
- Departamento de Bioquímica y Biología Molecular, Facultad de Ciencias Biológicas, Universidad de Concepción, Concepción, Chile
| | - Teresa Caprile
- Departamento de Biología Celular, Facultad de Ciencias Biológicas, Universidad de Concepción, Concepción, Chile
- Grupo de Procesos en Biología del Desarrollo (GDeP), Facultad de Ciencias Biológicas, Universidad de Concepción, Concepción, Chile
| | - Ricardo Fuentes
- Departamento de Biología Celular, Facultad de Ciencias Biológicas, Universidad de Concepción, Concepción, Chile
- Grupo de Procesos en Biología del Desarrollo (GDeP), Facultad de Ciencias Biológicas, Universidad de Concepción, Concepción, Chile
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18
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Liu B, Zhao S, Liu L, Du H, Zhao H, Wang S, Niu Y, Li X, Qiu G, Wu Z, Zhang TJ, Wu N. Aberrant interaction between mutated ADAMTSL2 and LTBP4 is associated with adolescent idiopathic scoliosis. Gene 2021; 814:146126. [PMID: 34958866 DOI: 10.1016/j.gene.2021.146126] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 12/01/2021] [Accepted: 12/13/2021] [Indexed: 12/26/2022]
Abstract
Adolescent idiopathic scoliosis (AIS) is a complex spinal structure deformity with a prevalence of 1%-3%. Genetic and hereditary factors have been associated with the etiology of AIS. However, previous studies mainly focused on common single nucleotide polymorphisms which confer modest disease risk. Recently, rare variants in FBN1 and other extracellular matrix genes have been implicated in AIS, suggesting a potential overlapping disease etiology between AIS and hereditary connective tissue disorders (HCTD). In this study, we systematically analyzed rare variants in a set of HCTD-related genes in 302 AIS patients using exome sequencing. We firstly focused on pathogenic variants based on a monogenic inheritance and identified nine disease-associated variants in FBN1, COL11A1, COL11A2 and TGFBR2. We then explored the potential interactions between variants in different genes based on the case-control statistics. We identified three ADAMTSL2-LTBP4 variant pairs in three AIS patients and none in controls. Furthermore, we revealed that the variant pairs identified in these genes could affect the interaction between ADAMTSL2 and LTBP4 and upregulate TGF-β signaling pathway in human fibroblasts. Our findings supported that the aberrant interaction between mutated ADAMTSL2 and LTBP4 was associated with AIS.
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Affiliation(s)
- Bowen Liu
- Department of Orthopedic Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100730, China; Beijing Key Laboratory for Genetic Research of Skeletal Deformity, Beijing 100730, China
| | - Sen Zhao
- Department of Orthopedic Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100730, China; Beijing Key Laboratory for Genetic Research of Skeletal Deformity, Beijing 100730, China
| | - Lian Liu
- Department of Orthopedic Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100730, China; Beijing Key Laboratory for Genetic Research of Skeletal Deformity, Beijing 100730, China
| | - Huakang Du
- Department of Orthopedic Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100730, China; Beijing Key Laboratory for Genetic Research of Skeletal Deformity, Beijing 100730, China
| | - Hengqiang Zhao
- Department of Orthopedic Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100730, China; Beijing Key Laboratory for Genetic Research of Skeletal Deformity, Beijing 100730, China
| | - Shengru Wang
- Department of Orthopedic Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100730, China; Beijing Key Laboratory for Genetic Research of Skeletal Deformity, Beijing 100730, China; Key Laboratory of Big Data for Spinal Deformities, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Yuchen Niu
- Beijing Key Laboratory for Genetic Research of Skeletal Deformity, Beijing 100730, China; Medical Research Center, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100730, China; Key Laboratory of Big Data for Spinal Deformities, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Xiaoxin Li
- Beijing Key Laboratory for Genetic Research of Skeletal Deformity, Beijing 100730, China; Medical Research Center, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100730, China; Key Laboratory of Big Data for Spinal Deformities, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Guixing Qiu
- Department of Orthopedic Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100730, China; Beijing Key Laboratory for Genetic Research of Skeletal Deformity, Beijing 100730, China; Key Laboratory of Big Data for Spinal Deformities, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Zhihong Wu
- Beijing Key Laboratory for Genetic Research of Skeletal Deformity, Beijing 100730, China; Medical Research Center, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100730, China; Key Laboratory of Big Data for Spinal Deformities, Chinese Academy of Medical Sciences, Beijing 100730, China.
| | - Terry Jianguo Zhang
- Department of Orthopedic Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100730, China; Beijing Key Laboratory for Genetic Research of Skeletal Deformity, Beijing 100730, China; Key Laboratory of Big Data for Spinal Deformities, Chinese Academy of Medical Sciences, Beijing 100730, China.
| | - Nan Wu
- Department of Orthopedic Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100730, China; Beijing Key Laboratory for Genetic Research of Skeletal Deformity, Beijing 100730, China; Key Laboratory of Big Data for Spinal Deformities, Chinese Academy of Medical Sciences, Beijing 100730, China.
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19
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Whole-exome analysis of adolescents with low VWF and heavy menstrual bleeding identifies novel genetic associations. Blood Adv 2021; 6:420-428. [PMID: 34807970 PMCID: PMC8791588 DOI: 10.1182/bloodadvances.2021005118] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Accepted: 11/01/2021] [Indexed: 11/20/2022] Open
Abstract
HMB is associated with rare and common variants in genes related to anemias and bleeding disorders. These are the first exome-sequencing results from patients with HMB, as well as their comparison with control exomes.
Adolescents with low von Willebrand factor (VWF) levels and heavy menstrual bleeding (HMB) experience significant morbidity. There is a need to better characterize these patients genetically and improve our understanding of the pathophysiology of bleeding. We performed whole-exome sequencing on 86 postmenarchal patients diagnosed with low VWF levels (30-50 IU/dL) and HMB and compared them with 660 in-house controls. We compared the number of rare stop-gain/stop-loss and rare ClinVar “pathogenic” variants between cases and controls, as well as performed gene burden and gene-set burden analyses. We found an enrichment in cases of rare stop-gain/stop-loss variants in genes involved in bleeding disorders and an enrichment of rare ClinVar “pathogenic” variants in genes involved in anemias. The 2 most significant genes in the gene burden analysis, CFB and DNASE2, are associated with atypical hemolytic uremia and severe anemia, respectively. VWF also surpassed exome-wide significance in the gene burden analysis (P = 7.31 × 10−6). Gene-set burden analysis revealed an enrichment of rare nonsynonymous variants in cases in several hematologically relevant pathways. Further, common variants in FERMT2, a gene involved in the regulation of hemostasis and angiogenesis, surpassed genome-wide significance. We demonstrate that adolescents with HMB and low VWF have an excess of rare nonsynonymous and pathogenic variants in genes involved in bleeding disorders and anemia. Variants of variable penetrance in these genes may contribute to the spectrum of phenotypes observed in patients with HMB and could partially explain the bleeding phenotype. By identifying patients with HMB who possess these variants, we may be able to improve risk stratification and patient outcomes.
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20
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Severity of Idiopathic Scoliosis Is Associated with Differential Methylation: An Epigenome-Wide Association Study of Monozygotic Twins with Idiopathic Scoliosis. Genes (Basel) 2021; 12:genes12081191. [PMID: 34440365 PMCID: PMC8391702 DOI: 10.3390/genes12081191] [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: 07/16/2021] [Revised: 07/29/2021] [Accepted: 07/29/2021] [Indexed: 12/27/2022] Open
Abstract
Epigenetic mechanisms may contribute to idiopathic scoliosis (IS). We identified 8 monozygotic twin pairs with IS, 6 discordant (Cobb angle difference > 10°) and 2 concordant (Cobb angle difference ≤ 2°). Genome-wide methylation in blood was measured with the Infinium HumanMethylation EPIC Beadchip. We tested for differences in methylation and methylation variability between discordant twins and tested the association between methylation and curve severity in all twins. Differentially methylated region (DMR) analyses identified gene promoter regions. Methylation at cg12959265 (chr. 7 DPY19L1) was less variable in cases (false discovery rate (FDR) = 0.0791). We identified four probes (false discovery rate, FDR < 0.10); cg02477677 (chr. 17, RARA gene), cg12922161 (chr. 2 LOC150622 gene), cg08826461 (chr. 2), and cg16382077 (chr. 7) associated with curve severity. We identified 57 DMRs where hyper- or hypo-methylation was consistent across the region and 28 DMRs with a consistent association with curve severity. Among DMRs, 21 were correlated with bone methylation. Prioritization of regions based on methylation concordance in bone identified promoter regions for WNT10A (WNT signaling), NPY (regulator of bone and energy homeostasis), and others predicted to be relevant for bone formation/remodeling. These regions may aid in understanding the complex interplay between genetics, environment, and IS.
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21
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Tang NLS, Dobbs MB, Gurnett CA, Qiu Y, Lam TP, Cheng JCY, Hadley-Miller N. A Decade in Review after Idiopathic Scoliosis Was First Called a Complex Trait-A Tribute to the Late Dr. Yves Cotrel for His Support in Studies of Etiology of Scoliosis. Genes (Basel) 2021; 12:1033. [PMID: 34356049 PMCID: PMC8306836 DOI: 10.3390/genes12071033] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 06/08/2021] [Accepted: 06/28/2021] [Indexed: 01/16/2023] Open
Abstract
Adolescent Idiopathic Scoliosis (AIS) is a prevalent and important spine disorder in the pediatric age group. An increased family tendency was observed for a long time, but the underlying genetic mechanism was uncertain. In 1999, Dr. Yves Cotrel founded the Cotrel Foundation in the Institut de France, which supported collaboration of international researchers to work together to better understand the etiology of AIS. This new concept of AIS as a complex trait evolved in this setting among researchers who joined the annual Cotrel meetings. It is now over a decade since the first proposal of the complex trait genetic model for AIS. Here, we review in detail the vast information about the genetic and environmental factors in AIS pathogenesis gathered to date. More importantly, new insights into AIS etiology were brought to us through new research data under the perspective of a complex trait. Hopefully, future research directions may lead to better management of AIS, which has a tremendous impact on affected adolescents in terms of both physical growth and psychological development.
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Affiliation(s)
- Nelson L. S. Tang
- KIZ/CUHK Joint Laboratory of Bioresources and Molecular Research in Common Diseases, Department of Chemical Pathology, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
- Functional Genomics and Biostatistical Computing Laboratory, CUHK Shenzhen Research Institute, Shenzhen 518000, China
| | - Matthew B. Dobbs
- Dobbs Clubfoot Center, Paley Orthopedic and Spine Institute, West Palm Beach, FL 33401, USA;
| | - Christina A. Gurnett
- Department of Neurology, Washington University in St Louis, St Louis, MO 63110, USA;
| | - Yong Qiu
- Department of Spine Surgery, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing 210000, China;
| | - T. P. Lam
- Department of Orthopaedics & Traumatology and SH Ho Scoliosis Research Lab, Joint Scoliosis Research Center of the Chinese University of Hong Kong and Nanjing University, The Chinese University of Hong Kong, Hong Kong SAR, China; (T.P.L.); (J.C.Y.C.)
| | - Jack C. Y. Cheng
- Department of Orthopaedics & Traumatology and SH Ho Scoliosis Research Lab, Joint Scoliosis Research Center of the Chinese University of Hong Kong and Nanjing University, The Chinese University of Hong Kong, Hong Kong SAR, China; (T.P.L.); (J.C.Y.C.)
| | - Nancy Hadley-Miller
- Department of Orthopedics, University of Colorado Anschutz Medical Campus, Aurora, CO 80012, USA;
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22
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Whole Exome Sequencing of 23 Multigeneration Idiopathic Scoliosis Families Reveals Enrichments in Cytoskeletal Variants, Suggests Highly Polygenic Disease. Genes (Basel) 2021; 12:genes12060922. [PMID: 34208743 PMCID: PMC8235452 DOI: 10.3390/genes12060922] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 06/04/2021] [Accepted: 06/10/2021] [Indexed: 12/26/2022] Open
Abstract
Adolescent idiopathic scoliosis (AIS) is a lateral spinal curvature >10° with rotation that affects 2–3% of healthy children across populations. AIS is known to have a significant genetic component, and despite a handful of risk loci identified in unrelated individuals by GWAS and next-generation sequencing methods, the underlying etiology of the condition remains largely unknown. In this study, we performed exome sequencing of affected individuals within 23 multigenerational families, with the hypothesis that the occurrence of rare, low frequency, disease-causing variants will co-occur in distantly related, affected individuals. Bioinformatic filtering of uncommon, potentially damaging variants shared by all sequenced family members revealed 1448 variants in 1160 genes across the 23 families, with 132 genes shared by two or more families. Ten genes were shared by >4 families, and no genes were shared by all. Gene enrichment analysis showed an enrichment of variants in cytoskeletal and extracellular matrix related processes. These data support a model that AIS is a highly polygenic disease, with few variant-containing genes shared between affected individuals across different family lineages. This work presents a novel resource for further exploration in familial AIS genetic research.
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23
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Wang Q, Wang C, Liu J, Sun J, Wang C, Zhang X. Plasma proteomics analysis of adolescent idiopathic scoliosis patients revealed by Quadrupole-Orbitrap mass spectrometry. Proteomics Clin Appl 2021; 15:e2100002. [PMID: 33864425 DOI: 10.1002/prca.202100002] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Revised: 03/22/2021] [Accepted: 04/12/2021] [Indexed: 12/16/2022]
Abstract
OBJECTIVE We aim to investigate the changes of plasma proteome among mild, severe adolescent idiopathic scoliosis (AIS) patients and healthy controls. METHODS In this retrospective study, there were 84 individuals including 56 confirmed AIS patients (27 follow-up AIS patients and 29 surgical AIS patients) and another 28 healthy teenagers. Plasma samples were obtained and Quadrupole-Orbitrap Mass Spectrometer was performed to identify proteins in AIS patients and control group. T-test and ANOVA were performed to screen for differential proteins. GO and KEGG pathway, Pearson's correlation analysis and PLS model were applied to identify enriched proteins, investigate correlation between proteins and Cobb angles. ELISA was performed to further verify the quantitative proteomics results. RESULTS A total of 349 proteins were identified, among which 55 protein levels changed significantly in AIS group, compared with control group. Post hoc test indicated 36 proteins were significantly different between surgical and control group, 35 proteins between follow-up and control group. Fibronectin, fibrinogen and calmodulin were statistically different among three groups through mass spectrometry and were positively correlated with the Cobb angle. CONCLUSIONS We performed the proteomic study and revealed that fibronectin, fibrinogen and calmodulin might not only be considered as biomarkers for AIS but could be correlated with curve severity.
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Affiliation(s)
- Qi Wang
- Medical School of Chinese PLA General Hospital, Beijing, 100853, China.,Department of Orthopedics, Chinese PLA General Hospital, Beijing, 100853, China
| | - Chi Wang
- Department of Clinical Laboratory Medicine, the First Medical Center, Chinese PLA General Hospital, Beijing, 100853, China
| | - Jiayu Liu
- Department of Clinical Laboratory Medicine, the First Medical Center, Chinese PLA General Hospital, Beijing, 100853, China
| | - Jingru Sun
- Qlife Lab Co., Ltd, Shenzhen, 518102, China
| | - Chengbin Wang
- Department of Clinical Laboratory Medicine, the First Medical Center, Chinese PLA General Hospital, Beijing, 100853, China
| | - Xuesong Zhang
- Department of Orthopedics, Chinese PLA General Hospital, Beijing, 100853, China
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24
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Terhune EA, Cuevas MT, Monley AM, Wethey CI, Chen X, Cattell MV, Bayrak MN, Bland MR, Sutphin B, Trahan GD, Taylor MRG, Niswander LA, Jones KL, Baschal EE, Antunes L, Dobbs M, Gurnett C, Appel B, Gray R, Hadley Miller N. Mutations in KIF7 implicated in idiopathic scoliosis in humans and axial curvatures in zebrafish. Hum Mutat 2021; 42:392-407. [PMID: 33382518 DOI: 10.1002/humu.24162] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 09/02/2020] [Accepted: 12/11/2020] [Indexed: 12/22/2022]
Abstract
Idiopathic scoliosis (IS) is a spinal disorder affecting up to 3% of otherwise healthy children. IS has a strong familial genetic component and is believed to be genetically complex due to significant variability in phenotype and heritability. Previous studies identified putative loci and variants possibly contributing to IS susceptibility, including within extracellular matrix, cilia, and actin networks, but the genetic architecture and underlying mechanisms remain unresolved. Here, we used whole-exome sequencing from three affected individuals in a multigenerational family with IS and identified 19 uncommon variants (minor allele frequency < 0.05). Genotyping of additional family members identified a candidate heterozygous variant (H1115Q, G>C, rs142032413) within the ciliary gene KIF7, a regulator within the hedgehog (Hh) signaling pathway. Resequencing of the second cohort of unrelated IS individuals and controls identified several severe mutations in KIF7 in affected individuals only. Subsequently, we generated a mutant zebrafish model of kif7 using CRISPR-Cas9. kif7co63/co63 zebrafish displayed severe scoliosis, presenting in juveniles and progressing through adulthood. We observed no deformities in the brain, Reissner fiber, or central canal cilia in kif7co63/co63 embryos, although alterations were seen in Hh pathway gene expression. This study suggests defects in KIF7-dependent Hh signaling, which may drive pathogenesis in a subset of individuals with IS.
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Affiliation(s)
- Elizabeth A Terhune
- Department of Orthopedics, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Melissa T Cuevas
- Department of Orthopedics, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Anna M Monley
- Department of Orthopedics, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA.,Musculoskeletal Research Center, Children's Hospital Colorado, Aurora, Colorado, USA
| | - Cambria I Wethey
- Department of Orthopedics, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Xiaomi Chen
- Department of Orthopedics, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Maria V Cattell
- Department of Orthopedics, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Melisa N Bayrak
- Department of Nutritional Sciences, Dell Pediatrics Research Institute, The University of Texas at Austin, Austin, Texas, USA
| | - Morgan R Bland
- Department of Orthopedics, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Brittan Sutphin
- Department of Orthopedics, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - George Devon Trahan
- Department of Pediatrics, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Matthew R G Taylor
- Department of Cardiology, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Lee A Niswander
- Department of Pediatrics, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA.,Department of Molecular, Cellular and Developmental Biology, University of Colorado Boulder, Boulder, Colorado, USA
| | - Kenneth L Jones
- Department of Pediatrics, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Erin E Baschal
- Department of Orthopedics, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Lilian Antunes
- Department of Orthopedics, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Matthew Dobbs
- Department of Orthopedics, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Christina Gurnett
- Department of Neurology, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Bruce Appel
- Department of Molecular, Cellular and Developmental Biology, University of Colorado Boulder, Boulder, Colorado, USA
| | - Ryan Gray
- Department of Nutritional Sciences, Dell Pediatrics Research Institute, The University of Texas at Austin, Austin, Texas, USA
| | - Nancy Hadley Miller
- Department of Orthopedics, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA.,Musculoskeletal Research Center, Children's Hospital Colorado, Aurora, Colorado, USA
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25
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Sadler B, Wilborn J, Antunes L, Kuensting T, Hale AT, Gannon SR, McCall K, Cruchaga C, Harms M, Voisin N, Reymond A, Cappuccio G, Brunetti-Pierri N, Tartaglia M, Niceta M, Leoni C, Zampino G, Ashley-Koch A, Urbizu A, Garrett ME, Soldano K, Macaya A, Conrad D, Strahle J, Dobbs MB, Turner TN, Shannon CN, Brockmeyer D, Limbrick DD, Gurnett CA, Haller G. Rare and de novo coding variants in chromodomain genes in Chiari I malformation. Am J Hum Genet 2021; 108:100-114. [PMID: 33352116 PMCID: PMC7820723 DOI: 10.1016/j.ajhg.2020.12.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Accepted: 11/24/2020] [Indexed: 12/16/2022] Open
Abstract
Chiari I malformation (CM1), the displacement of the cerebellum through the foramen magnum into the spinal canal, is one of the most common pediatric neurological conditions. Individuals with CM1 can present with neurological symptoms, including severe headaches and sensory or motor deficits, often as a consequence of brainstem compression or syringomyelia (SM). We conducted whole-exome sequencing (WES) on 668 CM1 probands and 232 family members and performed gene-burden and de novo enrichment analyses. A significant enrichment of rare and de novo non-synonymous variants in chromodomain (CHD) genes was observed among individuals with CM1 (combined p = 2.4 × 10-10), including 3 de novo loss-of-function variants in CHD8 (LOF enrichment p = 1.9 × 10-10) and a significant burden of rare transmitted variants in CHD3 (p = 1.8 × 10-6). Overall, individuals with CM1 were found to have significantly increased head circumference (p = 2.6 × 10-9), with many harboring CHD rare variants having macrocephaly. Finally, haploinsufficiency for chd8 in zebrafish led to macrocephaly and posterior hindbrain displacement reminiscent of CM1. These results implicate chromodomain genes and excessive brain growth in CM1 pathogenesis.
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Affiliation(s)
- Brooke Sadler
- Department of Pediatrics, Washington University, St. Louis, MO 63110, USA
| | - Jackson Wilborn
- Department of Neurosurgery, Washington University, St. Louis, MO 63110, USA
| | - Lilian Antunes
- Department of Orthopaedic Surgery, Washington University, St. Louis, MO 63110, USA
| | - Timothy Kuensting
- Department of Neurosurgery, Washington University, St. Louis, MO 63110, USA
| | - Andrew T Hale
- Division of Genetic Medicine, Vanderbilt University Medical Center & Medical Scientist Training Program, Vanderbilt University School of Medicine, Nashville, TN 37232, USA
| | - Stephen R Gannon
- Division of Pediatric Neurosurgery and Surgical Outcomes Center for Kids, Monroe Carell Jr. Children's Hospital of Vanderbilt University, Nashville, TN 37232, USA
| | - Kevin McCall
- Department of Orthopaedic Surgery, Washington University, St. Louis, MO 63110, USA
| | - Carlos Cruchaga
- Department of Psychiatry, Washington University, St. Louis, MO 63110, USA
| | - Matthew Harms
- Department of Neurology, Columbia University, New York, NY 10027, USA
| | - Norine Voisin
- Center for Integrative Genomics (CIG), University of Lausanne, Lausanne 1015, Switzerland
| | - Alexandre Reymond
- Center for Integrative Genomics (CIG), University of Lausanne, Lausanne 1015, Switzerland
| | - Gerarda Cappuccio
- Department of Translational Medicine, Section of Pediatrics, Federico II University, Naples 80138, Italy; Telethon Institute of Genetics and Medicine (TIGEM), Pozzuoli 80078, Italy
| | - Nicola Brunetti-Pierri
- Department of Translational Medicine, Section of Pediatrics, Federico II University, Naples 80138, Italy; Telethon Institute of Genetics and Medicine (TIGEM), Pozzuoli 80078, Italy
| | - Marco Tartaglia
- Genetics and Rare Diseases Research Division, Ospedale Pediatrico Bambino Gesù, IRCCS, Rome 00165, Italy
| | - Marcello Niceta
- Genetics and Rare Diseases Research Division, Ospedale Pediatrico Bambino Gesù, IRCCS, Rome 00165, Italy
| | - Chiara Leoni
- Center for Rare Diseases and Birth Defects, Department of Woman and Child Health and Public Health, Fondazione-Policlinico-Universitario-A. Gemelli-IRCCS, Rome 00168, Italy
| | - Giuseppe Zampino
- Center for Rare Diseases and Birth Defects, Department of Woman and Child Health and Public Health, Fondazione-Policlinico-Universitario-A. Gemelli-IRCCS, Rome 00168, Italy
| | - Allison Ashley-Koch
- Duke Molecular Physiology Institute, Department of Medicine, Duke University, Durham, NC 27708, USA
| | - Aintzane Urbizu
- Duke Molecular Physiology Institute, Department of Medicine, Duke University, Durham, NC 27708, USA
| | - Melanie E Garrett
- Duke Molecular Physiology Institute, Department of Medicine, Duke University, Durham, NC 27708, USA
| | - Karen Soldano
- Duke Molecular Physiology Institute, Department of Medicine, Duke University, Durham, NC 27708, USA
| | - Alfons Macaya
- Pediatric Neurology Research group, University Hospital Vall d'Hebron, Barcelona 08035, Spain
| | - Donald Conrad
- Oregon National Primate Research Center, Oregon Health and Science University, Beaverton, OR 97006, USA
| | - Jennifer Strahle
- Department of Neurosurgery, Washington University, St. Louis, MO 63110, USA
| | - Matthew B Dobbs
- Department of Orthopaedic Surgery, Washington University, St. Louis, MO 63110, USA; Shriners Hospital for Children, St. Louis, MO 63110, USA
| | - Tychele N Turner
- Department of Genetics, Washington University, St. Louis, MO 63110, USA
| | - Chevis N Shannon
- Division of Genetic Medicine, Vanderbilt University Medical Center & Medical Scientist Training Program, Vanderbilt University School of Medicine, Nashville, TN 37232, USA
| | - Douglas Brockmeyer
- Department of Neurological Surgery, University of Utah, Primary Children's Hospital, Salt Lake City, UT 84113, USA
| | - David D Limbrick
- Department of Neurosurgery, Washington University, St. Louis, MO 63110, USA
| | - Christina A Gurnett
- Department of Pediatrics, Washington University, St. Louis, MO 63110, USA; Department of Orthopaedic Surgery, Washington University, St. Louis, MO 63110, USA; Department of Neurology, Washington University, St. Louis, MO 63110, USA
| | - Gabe Haller
- Department of Neurosurgery, Washington University, St. Louis, MO 63110, USA; Department of Neurology, Washington University, St. Louis, MO 63110, USA; Department of Genetics, Washington University, St. Louis, MO 63110, USA.
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26
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Makki N, Zhao J, Liu Z, Eckalbar WL, Ushiki A, Khanshour AM, Wu J, Rios J, Gray RS, Wise CA, Ahituv N. Genomic characterization of the adolescent idiopathic scoliosis-associated transcriptome and regulome. Hum Mol Genet 2020; 29:3606-3615. [PMID: 33179741 PMCID: PMC7823110 DOI: 10.1093/hmg/ddaa242] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 08/24/2020] [Accepted: 10/12/2020] [Indexed: 12/27/2022] Open
Abstract
Adolescent idiopathic scoliosis (AIS), a sideways curvature of the spine, is the most common pediatric musculoskeletal disorder, affecting ~3% of the population worldwide. However, its genetic bases and tissues of origin remain largely unknown. Several genome-wide association studies (GWAS) have implicated nucleotide variants in non-coding sequences that control genes with important roles in cartilage, muscle, bone, connective tissue and intervertebral disks (IVDs) as drivers of AIS susceptibility. Here, we set out to define the expression of AIS-associated genes and active regulatory elements by performing RNA-seq and chromatin immunoprecipitation-sequencing against H3 lysine 27 acetylation in these tissues in mouse and human. Our study highlights genetic pathways involving AIS-associated loci that regulate chondrogenesis, IVD development and connective tissue maintenance and homeostasis. In addition, we identify thousands of putative AIS-associated regulatory elements which may orchestrate tissue-specific expression in musculoskeletal tissues of the spine. Quantification of enhancer activity of several candidate regulatory elements from our study identifies three functional enhancers carrying AIS-associated GWAS SNPs at the ADGRG6 and BNC2 loci. Our findings provide a novel genome-wide catalog of AIS-relevant genes and regulatory elements and aid in the identification of novel targets for AIS causality and treatment.
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Affiliation(s)
- Nadja Makki
- Department of Anatomy and Cell Biology, University of Florida, College of Medicine, Gainesville, FL, USA
| | - Jingjing Zhao
- Department of Bioengineering and Therapeutic Sciences, University of California San Francisco, San Francisco, CA, USA.,Institute for Human Genetics, University of California San Francisco, San Francisco, CA, USA
| | - Zhaoyang Liu
- Department of Pediatrics and Nutritional Sciences, Dell Pediatric Research Institute, University of Texas at Austin, Austin, TX, USA
| | - Walter L Eckalbar
- Department of Bioengineering and Therapeutic Sciences, University of California San Francisco, San Francisco, CA, USA.,Institute for Human Genetics, University of California San Francisco, San Francisco, CA, USA
| | - Aki Ushiki
- Department of Bioengineering and Therapeutic Sciences, University of California San Francisco, San Francisco, CA, USA.,Institute for Human Genetics, University of California San Francisco, San Francisco, CA, USA
| | - Anas M Khanshour
- Center for Pediatric Bone Biology and Translational Research, Texas Scottish Rite Hospital for Children, Dallas, TX, USA
| | - Joe Wu
- Health Science Center Libraries, University of Florida, Gainesville, FL, USA
| | - Jonathan Rios
- Center for Pediatric Bone Biology and Translational Research, Texas Scottish Rite Hospital for Children, Dallas, TX, USA.,McDermott Center for Human Growth and Development and Departments of Orthopaedic Surgery and Pediatrics, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Ryan S Gray
- Department of Pediatrics and Nutritional Sciences, Dell Pediatric Research Institute, University of Texas at Austin, Austin, TX, USA
| | - Carol A Wise
- Center for Pediatric Bone Biology and Translational Research, Texas Scottish Rite Hospital for Children, Dallas, TX, USA.,McDermott Center for Human Growth and Development and Departments of Orthopaedic Surgery and Pediatrics, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Nadav Ahituv
- Department of Bioengineering and Therapeutic Sciences, University of California San Francisco, San Francisco, CA, USA.,Institute for Human Genetics, University of California San Francisco, San Francisco, CA, USA
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Wang Y, Liu Z, Yang G, Gao Q, Xiao L, Li J, Guo C, Troutwine BR, Gray RS, Xie L, Zhang H. Coding Variants Coupled With Rapid Modeling in Zebrafish Implicate Dynein Genes, dnaaf1 and zmynd10, as Adolescent Idiopathic Scoliosis Candidate Genes. Front Cell Dev Biol 2020; 8:582255. [PMID: 33251213 PMCID: PMC7672046 DOI: 10.3389/fcell.2020.582255] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Accepted: 10/07/2020] [Indexed: 12/11/2022] Open
Abstract
Adolescent idiopathic scoliosis (AIS) is the most common pediatric spine disorder affecting ∼3% of children worldwide. Human genetic studies suggest a complex polygenic disease model for AIS with large genetic and phenotypic heterogeneity. However, the overall genetic etiology of AIS remains poorly understood. To identify additional AIS susceptibility loci, we performed whole-exome sequencing (WES) on a cohort of 195 Southern Chinese AIS patients. Bioinformatics analysis identified 237 novel rare variants associated with AIS, located in 232 new susceptibility loci. Enrichment analysis of these variants revealed 10 gene families associated with our AIS cohort. We screened these gene families by comparing our candidate gene list with IS candidate genes in the Human Phenotype Ontology (HPO) database and previous reported studies. Two candidate gene families, axonemal dynein and axonemal dynein assembly factors, were retained for their associations with ciliary architecture and function. The damaging effects of candidate variants in dynein genes dnali1, dnah1, dnaaf, and zmynd10, as well as in one fibrillin-related gene tns1, were functionally analyzed in zebrafish using targeted CRISPR/Cas9 screening. Knockout of two candidate genes, dnaaf1 or zmynd10, recapitulated scoliosis in viable adult zebrafish. Altogether, our results suggest that the disruption of one or more dynein-associated factors may correlate with AIS susceptibility in the Southern Chinese population.
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Affiliation(s)
- Yunjia Wang
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China.,Department of Pediatrics, Dell Pediatric Research Institute, The University of Texas at Austin, Dell Medical School, Austin, TX, United States
| | - Zhenhao Liu
- Shanghai Center for Bioinformation Technology, Shanghai Academy of Science and Technology, Shanghai, China.,Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Key Laboratory of Carcinogenesis, National Health and Family Planning Commission, Xiangya Hospital, Central South University, Changsha, China
| | - Guanteng Yang
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Qile Gao
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Lige Xiao
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Jiong Li
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Chaofeng Guo
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Benjamin R Troutwine
- Department of Pediatrics, Dell Pediatric Research Institute, The University of Texas at Austin, Dell Medical School, Austin, TX, United States
| | - Ryan S Gray
- Department of Pediatrics, Dell Pediatric Research Institute, The University of Texas at Austin, Dell Medical School, Austin, TX, United States
| | - Lu Xie
- Shanghai Center for Bioinformation Technology, Shanghai Academy of Science and Technology, Shanghai, China
| | - Hongqi Zhang
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
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28
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Abstract
The vertebrate body plan is characterized by the presence of a segmented spine along its main axis. Here, we examine the current understanding of how the axial tissues that are formed during embryonic development give rise to the adult spine and summarize recent advances in the field, largely focused on recent studies in zebrafish, with comparisons to amniotes where appropriate. We discuss recent work illuminating the genetics and biological mechanisms mediating extension and straightening of the body axis during development, and highlight open questions. We specifically focus on the processes of notochord development and cerebrospinal fluid physiology, and how defects in those processes may lead to scoliosis.
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Affiliation(s)
- Michel Bagnat
- Department of Cell Biology, Duke University, Durham, NC, 27710, USA
| | - Ryan S Gray
- Department of Nutritional Sciences, University of Texas at Austin, Dell Pediatrics Research Institute, Austin, TX, 78723, USA
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29
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Hou CL, Li B, Cheng YJ, Li M, Yang ZD. Upregulation of cGMP-dependent Protein Kinase (PRKG1) in the Development of Adolescent Idiopathic Scoliosis. Orthop Surg 2020; 12:1261-1269. [PMID: 32558266 PMCID: PMC7454216 DOI: 10.1111/os.12694] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 04/12/2020] [Accepted: 04/15/2020] [Indexed: 11/29/2022] Open
Abstract
Objective To explore the molecular regulatory mechanisms underlying fibroblast differentiation and dysfunction in the development of adolescent idiopathic scoliosis (AIS) in an effort to identify candidate therapeutic targets for AIS. Methods The GSE110359 dataset, obtained from the bone marrow stromal cells of 12 AIS patients and five healthy controls, was retrieved from the GEO database. The data were preprocessed and differentially expressed genes (DEGs) were identified. KEGG pathway and Gene Ontology (GO)‐Biological Process (BP) enrichment analyses were performed to identify the function of the DEGs. A protein–protein interaction (PPI) and a microRNA‐transcription factor (TF)‐target co‐regulatory network were constructed to identify hub genes in the development of AIS. In addition, hub DEGs were evaluated by quantitative PCR (qPCR) and immunohistochemical staining. Results A total of 188 DEGs including 100 up‐regulated and 88 down‐regulated genes were obtained. The up‐regulated DEGs were related to “p53 signaling pathway”, “FoxO signaling pathway”, and “cGMP‐PKG signaling pathway” terms, while the down‐regulated DEGs were significantly enriched in seven terms including “protein processing in endoplasmic reticulum”. The key up‐regulated genes, PRKG1, CCNG2, and KAT2B, and the key down‐regulated genes, MAP2K1 and DUSP6, were identified by the PPI and miRNA‐TF‐Target regulatory network analyses. mRNA expression patterns for PRKG1, DUSP6, and KAT2B were successfully verified by qPCR. In addition, PRKG1 protein levels were found to be elevated during the immunohistochemical analysis. Conclusion Increased expression of PRKG1 in AIS patients might be an attractive therapeutic target for AIS. However, further gain or loss‐of‐function studies should be conducted.
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Affiliation(s)
- Cang-Long Hou
- Department of spine surgery, Shanghai Changhai Hospital, Shanghai, China
| | - Bo Li
- Department of spine surgery, Shanghai Changhai Hospital, Shanghai, China
| | - Ya-Jun Cheng
- Department of spine surgery, Shanghai Changhai Hospital, Shanghai, China
| | - Ming Li
- Department of spine surgery, Shanghai Changhai Hospital, Shanghai, China
| | - Zong-de Yang
- Department of spine surgery, Shanghai Changhai Hospital, Shanghai, China
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30
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Jiang H, Liang S, He K, Hu J, Xu E, Lin T, Meng Y, Zhao J, Ma J, Gao R, Wang C, Yang F, Zhou X. Exome sequencing analysis identifies frequent oligogenic involvement and FLNB variants in adolescent idiopathic scoliosis. J Med Genet 2020; 57:405-413. [PMID: 32381728 PMCID: PMC7279190 DOI: 10.1136/jmedgenet-2019-106411] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 12/09/2019] [Accepted: 12/21/2019] [Indexed: 01/08/2023]
Abstract
Background Adolescent idiopathic scoliosis (AIS) is a genetically heterogeneous disease characterised by three-dimensional deformity of the spine in the absence of a congenital spinal anomaly or neurological musculoskeletal disorder. The clinical variability and incomplete penetrance of some genes linked with AIS indicate that this disease constitutes an oligogenic trait. Objective We aimed to explore the oligogenic nature of this disease and identify novel AIS genes. Methods We analysed rare damaging variants within AIS-associated genes by using exome sequencing in 40 AIS trios and 183 sporadic patients. Results Multiple variants within AIS-associated genes were identified in eight AIS trios, and five individuals harboured rare damaging variants in the FLNB gene. The patients showed more frequent oligogenicity than the controls. In the gene-based burden test, the top signal resided in FLNB. In functional studies, we found that the AIS-associated FLNB variants altered the protein’s conformation and subcellular localisation and its interaction with other proteins (TTC26 and OFD1) involved in AIS. The most compelling evidence of an oligogenic basis was that the number of rare damaging variants was recognised as an independent prognostic factor for curve progression in Cox regression analysis. Conclusion Our data indicate that AIS is an oligogenic disease and identify FLNB as a susceptibility gene for AIS.
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Affiliation(s)
- Heng Jiang
- Department of Orthopedics, Changzheng hospital, Second Military Medical University, Shanghai, China
| | - Shulun Liang
- Department of Orthopedics, Changzheng hospital, Second Military Medical University, Shanghai, China
| | - Kai He
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, Minnesota, USA
| | - Jinghua Hu
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, Minnesota, USA
| | - Enjie Xu
- Department of Orthopedics, Changzheng hospital, Second Military Medical University, Shanghai, China
| | - Tao Lin
- Department of Orthopedics, Changzheng hospital, Second Military Medical University, Shanghai, China
| | - Yichen Meng
- Department of Orthopedics, Changzheng hospital, Second Military Medical University, Shanghai, China
| | - Jianquan Zhao
- Department of Orthopedics, Changzheng hospital, Second Military Medical University, Shanghai, China
| | - Jun Ma
- Department of Orthopedics, Changzheng hospital, Second Military Medical University, Shanghai, China
| | - Rui Gao
- Department of Orthopedics, Changzheng hospital, Second Military Medical University, Shanghai, China
| | - Ce Wang
- Department of Orthopedics, Changzheng hospital, Second Military Medical University, Shanghai, China
| | - Fu Yang
- Department of Medical Genetics, Second Military Medical University, Shangahi, China.,Department of Cell Engineering, Shanghai Key Laboratory of Cell Engineering, Shanghai, China
| | - Xuhui Zhou
- Department of Orthopedics, Changzheng hospital, Second Military Medical University, Shanghai, China
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31
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Wise CA, Sepich D, Ushiki A, Khanshour AM, Kidane YH, Makki N, Gurnett CA, Gray RS, Rios JJ, Ahituv N, Solnica-Krezel L. The cartilage matrisome in adolescent idiopathic scoliosis. Bone Res 2020; 8:13. [PMID: 32195011 PMCID: PMC7062733 DOI: 10.1038/s41413-020-0089-0] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Accepted: 01/27/2020] [Indexed: 12/13/2022] Open
Abstract
The human spinal column is a dynamic, segmented, bony, and cartilaginous structure that protects the neurologic system and simultaneously provides balance and flexibility. Children with developmental disorders that affect the patterning or shape of the spine can be at risk of neurologic and other physiologic dysfunctions. The most common developmental disorder of the spine is scoliosis, a lateral deformity in the shape of the spinal column. Scoliosis may be part of the clinical spectrum that is observed in many developmental disorders, but typically presents as an isolated symptom in otherwise healthy adolescent children. Adolescent idiopathic scoliosis (AIS) has defied understanding in part due to its genetic complexity. Breakthroughs have come from recent genome-wide association studies (GWAS) and next generation sequencing (NGS) of human AIS cohorts, as well as investigations of animal models. These studies have identified genetic associations with determinants of cartilage biogenesis and development of the intervertebral disc (IVD). Current evidence suggests that a fraction of AIS cases may arise from variation in factors involved in the structural integrity and homeostasis of the cartilaginous extracellular matrix (ECM). Here, we review the development of the spine and spinal cartilages, the composition of the cartilage ECM, the so-called "matrisome" and its functions, and the players involved in the genetic architecture of AIS. We also propose a molecular model by which the cartilage matrisome of the IVD contributes to AIS susceptibility.
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Affiliation(s)
- Carol A. Wise
- Center for Pediatric Bone Biology and Translational Research, Texas Scottish Rite Hospital for Children, 2222 Welborn St., Dallas, TX 75219 USA
- McDermott Center for Human Growth and Development, University of Texas Southwestern Medical Center, Dallas, TX 75235 USA
- Departments of Pediatrics, University of Texas Southwestern Medical Center, Dallas, TX 75235 USA
- Orthopaedic Surgery, University of Texas Southwestern Medical Center, Dallas, TX 75235 USA
| | - Diane Sepich
- Department of Developmental Biology, Washington University School of Medicine, St. Louis, MO 63110 USA
| | - Aki Ushiki
- Department of Bioengineering and Therapeutic Sciences, University of California San Francisco, San Francisco, CA 94158 USA
- Institute for Human Genetics, University of California San Francisco, San Francisco, CA 94158 USA
| | - Anas M. Khanshour
- Center for Pediatric Bone Biology and Translational Research, Texas Scottish Rite Hospital for Children, 2222 Welborn St., Dallas, TX 75219 USA
| | - Yared H. Kidane
- Center for Pediatric Bone Biology and Translational Research, Texas Scottish Rite Hospital for Children, 2222 Welborn St., Dallas, TX 75219 USA
| | - Nadja Makki
- Department of Anatomy and Cell Biology, University of Florida, College of Medicine, Gainesville, FL 32610 USA
| | - Christina A. Gurnett
- Departments of Neurology, Washington University School of Medicine, St Louis, MO 63110 USA
- Pediatrics, Washington University School of Medicine, St Louis, MO 63110 USA
- Orthopaedic Surgery, Washington University School of Medicine, St Louis, MO 63110 USA
| | - Ryan S. Gray
- Department of Pediatrics, Dell Pediatric Research Institute, University of Texas at Austin Dell Medical School, Austin, TX 78723 USA
| | - Jonathan J. Rios
- Center for Pediatric Bone Biology and Translational Research, Texas Scottish Rite Hospital for Children, 2222 Welborn St., Dallas, TX 75219 USA
- McDermott Center for Human Growth and Development, University of Texas Southwestern Medical Center, Dallas, TX 75235 USA
- Departments of Pediatrics, University of Texas Southwestern Medical Center, Dallas, TX 75235 USA
- Orthopaedic Surgery, University of Texas Southwestern Medical Center, Dallas, TX 75235 USA
| | - Nadav Ahituv
- Department of Bioengineering and Therapeutic Sciences, University of California San Francisco, San Francisco, CA 94158 USA
- Institute for Human Genetics, University of California San Francisco, San Francisco, CA 94158 USA
| | - Lila Solnica-Krezel
- Department of Developmental Biology, Washington University School of Medicine, St. Louis, MO 63110 USA
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32
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TELES FILHO RICARDOVIEIRA, ABE GUILHERMEDEMATOS, MELO NILOCARRIJO, RABAHI MARCELOFOUAD, DAHER MURILOTAVARES. GENETIC ASPECTS OF IDIOPATHIC ESCOLIOSIS - A LITERATURE REVIEW. COLUNA/COLUMNA 2019. [DOI: 10.1590/s1808-185120191803212974] [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] Open
Abstract
ABSTRACT The idiopathic scoliosis (IS) is the most common form of spinal deformity. The pathogenesis of IS is still poorly understood. Several studies show evidence that the genetic component is determinant to the development of IS. In this setting, a crescent focus has been placed on the identification of genes, associated genetic polymorphisms, and multiple susceptibility loci. This review highlights the genes and genetic polymorphisms currently studied, identified as influential in the genesis of IS, such as MMP-3, IL-6, type I collagen, and vitamin D and estrogen receptors. We concluded that IS remains a complex disease with a polygenic background and that genetic polymorphisms are intrinsically related to this condition. Level of evidence III; Narrative Review.
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Affiliation(s)
| | | | | | | | - MURILO TAVARES DAHER
- Universidade Federal de Goiás, Brazil; Centro de Reabilitação e Readaptação Dr Henrique Santillo, Brazil
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33
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Khanshour AM, Kou I, Fan Y, Einarsdottir E, Makki N, Kidane YH, Kere J, Grauers A, Johnson TA, Paria N, Patel C, Singhania R, Kamiya N, Takeda K, Otomo N, Watanabe K, Luk KDK, Cheung KMC, Herring JA, Rios JJ, Ahituv N, Gerdhem P, Gurnett CA, Song YQ, Ikegawa S, Wise CA. Genome-wide meta-analysis and replication studies in multiple ethnicities identify novel adolescent idiopathic scoliosis susceptibility loci. Hum Mol Genet 2019; 27:3986-3998. [PMID: 30395268 DOI: 10.1093/hmg/ddy306] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Accepted: 08/20/2018] [Indexed: 12/13/2022] Open
Abstract
Adolescent idiopathic scoliosis (AIS) is the most common musculoskeletal disorder of childhood development. The genetic architecture of AIS is complex, and the great majority of risk factors are undiscovered. To identify new AIS susceptibility loci, we conducted the first genome-wide meta-analysis of AIS genome-wide association studies, including 7956 cases and 88 459 controls from 3 ancestral groups. Three novel loci that surpassed genome-wide significance were uncovered in intragenic regions of the CDH13 (P-value_rs4513093 = 1.7E-15), ABO (P-value_ rs687621 = 7.3E-10) and SOX6 (P-value_rs1455114 = 2.98E-08) genes. Restricting the analysis to females improved the associations at multiple loci, most notably with variants within CDH13 despite the reduction in sample size. Genome-wide gene-functional enrichment analysis identified significant perturbation of pathways involving cartilage and connective tissue development. Expression of both SOX6 and CDH13 was detected in cartilage chondrocytes and chromatin immunoprecipitation sequencing experiments in that tissue revealed multiple HeK27ac-positive peaks overlapping associated loci. Our results further define the genetic architecture of AIS and highlight the importance of vertebral cartilage development in its pathogenesis.
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Affiliation(s)
- Anas M Khanshour
- Sarah M. & Charles E. Seay Center for Musculoskeletal Research, Texas Scottish Rite Hospital for Children, Dallas, TX, USA
| | - Ikuyo Kou
- Laboratory of Bone & Joint Diseases, RIKEN Center for Integrative Medical Sciences, Tokyo, Japan
| | - Yanhui Fan
- School of Biomedical Sciences, The University of Hong Kong, Hong Kong, China
| | - Elisabet Einarsdottir
- Folkhälsan Institute of Genetics, University of Helsinki, 00014 University of Helsinki, Finland.,Molecular Neurology Research Program, University of Helsinki, 00014 University of Helsinki, Finland.,Department of Biosciences & Nutrition, Karolinska Institutet, Huddinge, Sweden
| | - Nadja Makki
- Department of Bioengineering & Therapeutic Sciences, University of California San Francisco, San Francisco, CA, USA.,Institute for Human Genetics, University of California San Francisco, San Francisco, CA, USA
| | - Yared H Kidane
- Sarah M. & Charles E. Seay Center for Musculoskeletal Research, Texas Scottish Rite Hospital for Children, Dallas, TX, USA
| | - Juha Kere
- Folkhälsan Institute of Genetics, University of Helsinki, 00014 University of Helsinki, Finland.,Molecular Neurology Research Program, University of Helsinki, 00014 University of Helsinki, Finland.,Department of Medical & Molecular Genetics, King's College London, Guy's Hospital, London SE1 9RT, UK.,Department of Clinical Science, Intervention & Technology (CLINTEC), Karolinska Institutet, K54 Huddinge, Stockholm, Sweden
| | - Anna Grauers
- Department of Clinical Science, Intervention & Technology (CLINTEC), Karolinska Institutet, K54 Huddinge, Stockholm, Sweden.,Department of Orthopedics, Sundsvall and Härnösand County Hospital, Sundsvall, Sweden
| | - Todd A Johnson
- Laboratory of Bone & Joint Diseases, RIKEN Center for Integrative Medical Sciences, Tokyo, Japan
| | - Nandina Paria
- Sarah M. & Charles E. Seay Center for Musculoskeletal Research, Texas Scottish Rite Hospital for Children, Dallas, TX, USA
| | - Chandreshkumar Patel
- McDermott Center for Human Growth & Development, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Richa Singhania
- Sarah M. & Charles E. Seay Center for Musculoskeletal Research, Texas Scottish Rite Hospital for Children, Dallas, TX, USA
| | | | - Kazuki Takeda
- Laboratory of Bone & Joint Diseases, RIKEN Center for Integrative Medical Sciences, Tokyo, Japan.,Department of Orthopaedic Surgery, Keio University School of Medicine, Tokyo, Japan
| | - Nao Otomo
- Laboratory of Bone & Joint Diseases, RIKEN Center for Integrative Medical Sciences, Tokyo, Japan.,Department of Orthopaedic Surgery, Keio University School of Medicine, Tokyo, Japan
| | - Kota Watanabe
- Department of Orthopaedic Surgery, Keio University School of Medicine, Tokyo, Japan
| | - Keith D K Luk
- Department of Orthopaedics & Traumatology, The University of Hong Kong, Hong Kong, China
| | - Kenneth M C Cheung
- Department of Orthopaedics & Traumatology, The University of Hong Kong, Hong Kong, China
| | - John A Herring
- Sarah M. & Charles E. Seay Center for Musculoskeletal Research, Texas Scottish Rite Hospital for Children, Dallas, TX, USA.,Department of Orthopaedic Surgery, Pediatrics, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Jonathan J Rios
- Sarah M. & Charles E. Seay Center for Musculoskeletal Research, Texas Scottish Rite Hospital for Children, Dallas, TX, USA.,McDermott Center for Human Growth & Development, University of Texas Southwestern Medical Center, Dallas, TX, USA.,Department of Orthopaedic Surgery, Pediatrics, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Nadav Ahituv
- Department of Bioengineering & Therapeutic Sciences, University of California San Francisco, San Francisco, CA, USA.,Institute for Human Genetics, University of California San Francisco, San Francisco, CA, USA
| | - Paul Gerdhem
- Department of Clinical Science, Intervention & Technology (CLINTEC), Karolinska Institutet, K54 Huddinge, Stockholm, Sweden.,Department of Orthopedics, Karolinska University Hospital, K54 Huddinge, Stockholm, Sweden
| | - Christina A Gurnett
- Department of Neurology, School of Medicine, Washington University, St. Louis, MO, USA
| | - You-Qiang Song
- School of Biomedical Sciences, The University of Hong Kong, Hong Kong, China
| | - Shiro Ikegawa
- Laboratory of Bone & Joint Diseases, RIKEN Center for Integrative Medical Sciences, Tokyo, Japan
| | - Carol A Wise
- Sarah M. & Charles E. Seay Center for Musculoskeletal Research, Texas Scottish Rite Hospital for Children, Dallas, TX, USA.,McDermott Center for Human Growth & Development, University of Texas Southwestern Medical Center, Dallas, TX, USA.,Department of Orthopaedic Surgery, Pediatrics, University of Texas Southwestern Medical Center, Dallas, TX, USA
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Sadler B, Haller G, Antunes L, Bledsoe X, Morcuende J, Giampietro P, Raggio C, Miller N, Kidane Y, Wise CA, Amarillo I, Walton N, Seeley M, Johnson D, Jenkins C, Jenkins T, Oetjens M, Tong RS, Druley TE, Dobbs MB, Gurnett CA. Distal chromosome 16p11.2 duplications containing SH2B1 in patients with scoliosis. J Med Genet 2019; 56:427-433. [PMID: 30803986 DOI: 10.1136/jmedgenet-2018-105877] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Revised: 01/18/2019] [Accepted: 01/25/2019] [Indexed: 12/31/2022]
Abstract
INTRODUCTION Adolescent idiopathic scoliosis (AIS) is a common musculoskeletal disorder with strong evidence for a genetic contribution. CNVs play an important role in congenital scoliosis, but their role in idiopathic scoliosis has been largely unexplored. METHODS Exome sequence data from 1197 AIS cases and 1664 in-house controls was analysed using coverage data to identify rare CNVs. CNV calls were filtered to include only highly confident CNVs with >10 average reads per region and mean log-ratio of coverage consistent with single-copy duplication or deletion. The frequency of 55 common recurrent CNVs was determined and correlated with clinical characteristics. RESULTS Distal chromosome 16p11.2 microduplications containing the gene SH2B1 were found in 0.7% of AIS cases (8/1197). We replicated this finding in two additional AIS cohorts (8/1097 and 2/433), resulting in 0.7% (18/2727) of all AIS cases harbouring a chromosome 16p11.2 microduplication, compared with 0.06% of local controls (1/1664) and 0.04% of published controls (8/19584) (p=2.28×10-11, OR=16.15). Furthermore, examination of electronic health records of 92 455 patients from the Geisinger health system showed scoliosis in 30% (20/66) patients with chromosome 16p11.2 microduplications containing SH2B1 compared with 7.6% (10/132) of controls (p=5.6×10-4, OR=3.9). CONCLUSIONS Recurrent distal chromosome 16p11.2 duplications explain nearly 1% of AIS. Distal chromosome 16p11.2 duplications may contribute to scoliosis pathogenesis by directly impairing growth or by altering expression of nearby genes, such as TBX6. Individuals with distal chromosome 16p11.2 microduplications should be screened for scoliosis to facilitate early treatment.
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Affiliation(s)
- Brooke Sadler
- Department of Neurology, Washington University in Saint Louis School of Medicine, St. Louis, Missouri, USA
| | - Gabe Haller
- Department of Orthopedic Surgery, Washington University in Saint Louis School of Medicine, St. Louis, Missouri, USA
| | - Lilian Antunes
- Department of Neurology, Washington University in Saint Louis School of Medicine, St. Louis, Missouri, USA
| | - Xavier Bledsoe
- Department of Neurology, Washington University in Saint Louis School of Medicine, St. Louis, Missouri, USA
| | - Jose Morcuende
- Department of Orthopaedic Surgery and Rehabilitation, University of Iowa Roy J and Lucille A Carver College of Medicine, Iowa City, Iowa, USA
| | - Philip Giampietro
- Department of Genetics, St. Christopher's Hospital for Children, Philadelphia, Pennsylvania, USA
| | - Cathleen Raggio
- Orthopedic Surgery, Pediatrics, Hospital for Special Surgery, New York City, New York, USA
| | - Nancy Miller
- Department of Orthopedics, University of Colorado at Denver - Anschutz Medical Campus, Aurora, Colorado, USA
| | - Yared Kidane
- Sarah M. and Charles E. Seay Center for Musculoskeletal Research, Texas Scottish Rite Hospital for Children, Dallas, Texas, USA
| | - Carol A Wise
- Sarah M. and Charles E. Seay Center for Musculoskeletal Research, Texas Scottish Rite Hospital for Children, Dallas, Texas, USA
| | - Ina Amarillo
- Department of Pathology and Immunology, Washington University in Saint Louis School of Medicine, St. Louis, Missouri, USA
| | - Nephi Walton
- Genomic Medicine, Geisinger Health System, Danville, Pennsylvania, USA
| | - Mark Seeley
- Genomic Medicine, Geisinger Health System, Danville, Pennsylvania, USA
| | - Darren Johnson
- Genomic Medicine, Geisinger Health System, Danville, Pennsylvania, USA
| | - Conner Jenkins
- Genomic Medicine, Geisinger Health System, Danville, Pennsylvania, USA
| | - Troy Jenkins
- Genomic Medicine, Geisinger Health System, Danville, Pennsylvania, USA
| | - Matthew Oetjens
- Genomic Medicine, Geisinger Health System, Danville, Pennsylvania, USA
| | - R Spencer Tong
- Department of Pediatrics, Washington University in Saint Louis School of Medicine, St. Louis, Missouri, USA
| | - Todd E Druley
- Department of Pediatrics, Washington University in Saint Louis School of Medicine, St. Louis, Missouri, USA
| | - Matthew B Dobbs
- Department of Orthopedic Surgery, Washington University in Saint Louis School of Medicine, St. Louis, Missouri, USA
| | - Christina A Gurnett
- Department of Neurology, Division of Pediatric Neurology, Washington University in St. Louis School of Medicine, St. Louis, Missouri, USA
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Kikanloo SR, Tarpada SP, Cho W. Etiology of Adolescent Idiopathic Scoliosis: A Literature Review. Asian Spine J 2019; 13:519-526. [PMID: 30744305 PMCID: PMC6547389 DOI: 10.31616/asj.2018.0096] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/22/2018] [Accepted: 08/15/2018] [Indexed: 12/18/2022] Open
Abstract
Adolescent idiopathic scoliosis (AIS) is the peripubertal development of spinal curvature of a minimum of 10°. AIS is thought to be attributable to genetic factors, nutrition, early exposure to toxins, and hormonal dysregulation. Recent literature suggests these factors may compound to determine both disease onset and severity. Currently, treatment is limited to observation, bracing, and surgical intervention. Intervention is presently determined by severity and risk of curve progression. As they emerge, new therapies may target specific etiologies of AIS.
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Affiliation(s)
- Sina Rashidi Kikanloo
- Department of Orthopedic Surgery, Albert Einstein College of Medicine/Montefiore Medical Center, Bronx, NY, USA
| | - Sandip Parshottam Tarpada
- Department of Orthopedic Surgery, Albert Einstein College of Medicine/Montefiore Medical Center, Bronx, NY, USA
| | - Woojin Cho
- Department of Orthopedic Surgery, Albert Einstein College of Medicine/Montefiore Medical Center, Bronx, NY, USA
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36
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Xia C, Xu L, Xue B, Sheng F, Qiu Y, Zhu Z. Rare variant of HSPG2 is not involved in the development of adolescent idiopathic scoliosis: evidence from a large-scale replication study. BMC Musculoskelet Disord 2019; 20:24. [PMID: 30646882 PMCID: PMC6334417 DOI: 10.1186/s12891-019-2402-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Accepted: 01/04/2019] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Rare variants of HSPG2 have recently been reported to function as a potential contributor to the susceptibility of adolescent idiopathic scoliosis (AIS) in the Caucasians. A replication study in the different population is warranted to validate the role of HSPG2 in AIS. The aim of this study was to determine the association between HSPG2 and AIS in the Chinese patients and to further investigate its influence on the phenotype of the patients. METHODS SNVs p.Asn786Ser of HSPG2 was genotyped in 1752 patients and 1584 normal controls using multiple ligase detection reactions. The mRNA expression of HSPG2 in the paraspinal muscles was quantified for 90 patients and 26 controls. The The Student's t test was used to analyze the inter-group comparison of the HSPG2 expression. The relationship between the HSPG2 expression and the curve magnitude of the patients was analyzed by the Pearson correlation analysis. RESULTS No case of mutation in the reported SNV p.Asn786Ser of HSPG2 was found in our cohort. The mRNA expression of HSPG2 in patients was comparable with that in the controls (0.0016 ± 0.0013 vs. 0.0019 ± 0.0012, p = 0.29). 42 patients with curve magnitude > 60 degrees were assigned to the severe curve group. The other 58 patients were assigned to the moderate curve group. These two groups were found to have comparable HSPG2 expression (0.0015 ± 0.0011 vs. 0.0017 ± 0.0014, p = 0.57). And there was no remarkable correlation between the expression level of HSPG2 and the curve severity (r = 0.131, p = 0.71). CONCLUSIONS HSPG2 gene was not associated with the susceptibility or the phenotypes of AIS in the Chinese population. The whole HSPG2 gene can be sequenced in more AIS patients to identify potentially causative mutations.
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Affiliation(s)
- Chao Xia
- Department of Spine Surgery, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - Leilei Xu
- Department of Spine Surgery, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - Bingchuan Xue
- Department of Spine Surgery, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - Fei Sheng
- Department of Spine Surgery, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - Yong Qiu
- Department of Spine Surgery, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - Zezhang Zhu
- Department of Spine Surgery, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China.
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Van Gennip JLM, Boswell CW, Ciruna B. Neuroinflammatory signals drive spinal curve formation in zebrafish models of idiopathic scoliosis. SCIENCE ADVANCES 2018; 4:eaav1781. [PMID: 30547092 PMCID: PMC6291318 DOI: 10.1126/sciadv.aav1781] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Accepted: 11/12/2018] [Indexed: 05/05/2023]
Abstract
The etiopathogenesis of idiopathic scoliosis (IS), a highly prevalent spinal deformity that occurs in the absence of obvious congenital or physiological abnormalities, is poorly understood. Although recent zebrafish genetic studies have linked cilia motility and cerebrospinal fluid (CSF) flow defects with scoliosis progression, underlying mechanisms were not identified. Here, we use next-generation sequencing and conditional genetic methodologies to define the spatial and biological origins of spinal curve formation in ptk7 mutant zebrafish, a faithful IS model. We demonstrate that focal activation of proinflammatory signals within the spinal cord is associated with, and sufficient for, induction of spinal curvatures. Furthermore, administration of acetylsalicylic acid (aspirin) or N-acetylcysteine (NAC) to juvenile ptk7 mutants significantly reduces the incidence and/or severity of scoliosis phenotypes. Together, our results implicate neuroinflammation, downstream of CSF defects, in spinal curve formation and provide intriguing evidence that simple immunomodulating therapies might prove effective in managing idiopathic-like spinal deformities.
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Affiliation(s)
- J. L. M. Van Gennip
- Program in Developmental & Stem Cell Biology, The Hospital for Sick Children, 686 Bay Street, Toronto, Ontario M5G 0A4, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario M5S 1A8, Canada
| | - C. W. Boswell
- Program in Developmental & Stem Cell Biology, The Hospital for Sick Children, 686 Bay Street, Toronto, Ontario M5G 0A4, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario M5S 1A8, Canada
| | - B. Ciruna
- Program in Developmental & Stem Cell Biology, The Hospital for Sick Children, 686 Bay Street, Toronto, Ontario M5G 0A4, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario M5S 1A8, Canada
- Corresponding author.
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A missense variant in SLC39A8 is associated with severe idiopathic scoliosis. Nat Commun 2018; 9:4171. [PMID: 30301978 PMCID: PMC6177404 DOI: 10.1038/s41467-018-06705-0] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Accepted: 08/30/2018] [Indexed: 01/09/2023] Open
Abstract
Genetic factors predictive of severe adolescent idiopathic scoliosis (AIS) are largely unknown. To identify genetic variation associated with severe AIS, we performed an exome-wide association study of 457 severe AIS cases and 987 controls. We find a missense SNP in SLC39A8 (p.Ala391Thr, rs13107325) associated with severe AIS (P = 1.60 × 10−7, OR = 2.01, CI = 1.54–2.62). This pleiotropic SNP was previously associated with BMI, blood pressure, cholesterol, and blood manganese level. We replicate the association in a second cohort (841 cases and 1095 controls) resulting in a combined P = 7.02 × 10−14, OR = 1.94, CI = 1.63–2.34. Clinically, the minor allele of rs13107325 is associated with greater spinal curvature, decreased height, increased BMI and lower plasma manganese in our AIS cohort. Functional studies demonstrate reduced manganese influx mediated by the SLC39A8 p.Ala391Thr variant and vertebral abnormalities, impaired growth, and decreased motor activity in slc39a8 mutant zebrafish. Our results suggest the possibility that scoliosis may be amenable to dietary intervention. The majority of scoliosis is considered idiopathic with onset in adolescence (AIS) and has a genetic contribution. Here, the authors perform an exome wide association study of data from 457 severe AIS cases and 987 controls, and find a missense variant in SLC39A8 is associated with AIS.
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39
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Jiang H, Yang F, Lin T, Shao W, Meng Y, Ma J, Wang C, Gao R, Zhou X. Asymmetric expression of H19 and ADIPOQ in concave/convex paravertebral muscles is associated with severe adolescent idiopathic scoliosis. Mol Med 2018; 24:48. [PMID: 30241458 PMCID: PMC6145194 DOI: 10.1186/s10020-018-0049-y] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2018] [Accepted: 09/10/2018] [Indexed: 12/19/2022] Open
Abstract
Background Adolescent idiopathic scoliosis (AIS) is the most common paediatric spinal deformity. The etiology and pathology of AIS remain unexplained, and have been reported to involve a combination of genetic and epigenetic factors. Since paravertebral muscle imbalance plays an important role in the onset and progression of scoliosis, we aimed to investigate transcriptomic differences by RNA-seq and identify significantly differentially expressed transcripts in two sides of paravertebral muscle in AIS. Methods RNA-seq was performed on 5 pairs of paravertebral muscle from 5 AIS patients. Significantly differentially expressed transcripts were validated by quantitative reverse polymerase chain reaction. Gene expression difference was correlated to clinical characteristics. Results We demonstrated that ADIPOQ mRNA and H19 is significantly differentially expressed between two sides of paravertebral muscle, relatively specific in the context of AIS. Relatively low H19 and high ADIPOQ mRNA expression levels in concave-sided muscle are associated with larger spinal curve and earlier age at initiation. We identified miR-675-5p encoded by H19 as a mechanistic regulator of ADIPOQ expression in AIS. We demonstrated that significantly reduced CCCTC-binding factor (CCTF) occupancy in the imprinting control region (ICR) of the H19 gene in the concave-sided muscle contributes to down-regulated H19 expression. Conclusions RNA-seq revealed transcriptomic differences between two sides of paravertebral muscle in AIS patients. Our findings imply that transcriptomic differences caused by epigenetic factors in affected individuals may account for the structural and functional imbalance of paravertebral muscle, which can expand our etiologic understanding of this disease. Electronic supplementary material The online version of this article (10.1186/s10020-018-0049-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Heng Jiang
- Department of Orthopedics, Changzheng Hospital, Second Military Medical University, No.415 Fengyang Road, Shanghai, People's Republic of China
| | - Fu Yang
- Department of Medical Genetics, Second Military Medical University, Shanghai, People's Republic of China.,Shanghai Key Laboratory of Cell Engineering (14DZ2272300), Shanghai, People's Republic of China
| | - Tao Lin
- Department of Orthopedics, Changzheng Hospital, Second Military Medical University, No.415 Fengyang Road, Shanghai, People's Republic of China
| | - Wei Shao
- Department of Orthopedics, Changzheng Hospital, Second Military Medical University, No.415 Fengyang Road, Shanghai, People's Republic of China
| | - Yichen Meng
- Department of Orthopedics, Changzheng Hospital, Second Military Medical University, No.415 Fengyang Road, Shanghai, People's Republic of China
| | - Jun Ma
- Department of Orthopedics, Changzheng Hospital, Second Military Medical University, No.415 Fengyang Road, Shanghai, People's Republic of China
| | - Ce Wang
- Department of Orthopedics, Changzheng Hospital, Second Military Medical University, No.415 Fengyang Road, Shanghai, People's Republic of China
| | - Rui Gao
- Department of Orthopedics, Changzheng Hospital, Second Military Medical University, No.415 Fengyang Road, Shanghai, People's Republic of China.
| | - Xuhui Zhou
- Department of Orthopedics, Changzheng Hospital, Second Military Medical University, No.415 Fengyang Road, Shanghai, People's Republic of China.
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Idiopathic Scoliosis Families Highlight Actin-Based and Microtubule-Based Cellular Projections and Extracellular Matrix in Disease Etiology. G3-GENES GENOMES GENETICS 2018; 8:2663-2672. [PMID: 29930198 PMCID: PMC6071588 DOI: 10.1534/g3.118.200290] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Idiopathic scoliosis (IS) is a structural lateral spinal curvature of ≥10° that affects up to 3% of otherwise healthy children and can lead to life-long problems in severe cases. It is well-established that IS is a genetic disorder. Previous studies have identified genes that may contribute to the IS phenotype, but the overall genetic etiology of IS is not well understood. We used exome sequencing to study five multigenerational families with IS. Bioinformatic analyses identified unique and low frequency variants (minor allele frequency ≤5%) that were present in all sequenced members of the family. Across the five families, we identified a total of 270 variants with predicted functional consequences in 246 genes, and found that eight genes were shared by two families. We performed GO term enrichment analyses, with the hypothesis that certain functional annotations or pathways would be enriched in the 246 genes identified in our IS families. Using three complementary programs to complete these analyses, we identified enriched categories that include stereocilia and other actin-based cellular projections, cilia and other microtubule-based cellular projections, and the extracellular matrix (ECM). Our results suggest that there are multiple paths to IS and provide a foundation for future studies of IS pathogenesis.
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Gilsanz V, Wren TAL, Ponrartana S, Mora S, Rosen CJ. Sexual Dimorphism and the Origins of Human Spinal Health. Endocr Rev 2018; 39:221-239. [PMID: 29385433 PMCID: PMC5888211 DOI: 10.1210/er.2017-00147] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Accepted: 01/24/2018] [Indexed: 12/26/2022]
Abstract
Recent observations indicate that the cross-sectional area (CSA) of vertebral bodies is on average 10% smaller in healthy newborn girls than in newborn boys, a striking difference that increases during infancy and puberty and is greatest by the time of sexual and skeletal maturity. The smaller CSA of female vertebrae is associated with greater spinal flexibility and could represent the human adaptation to fetal load in bipedal posture. Unfortunately, it also imparts a mechanical disadvantage that increases stress within the vertebrae for all physical activities. This review summarizes the potential endocrine, genetic, and environmental determinants of vertebral cross-sectional growth and current knowledge of the association between the small female vertebrae and greater risk for a broad array of spinal conditions across the lifespan.
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Affiliation(s)
- Vicente Gilsanz
- Department of Radiology, Children's Hospital Los Angeles, Keck School of Medicine, University of Southern California, Los Angeles, California 90027.,Department of Pediatrics, Children's Hospital Los Angeles, Keck School of Medicine, University of Southern California, Los Angeles, California 90027.,Department of Orthopaedic Surgery, Children's Hospital Los Angeles, Keck School of Medicine, University of Southern California, Los Angeles, California 90027
| | - Tishya A L Wren
- Department of Orthopaedic Surgery, Children's Hospital Los Angeles, Keck School of Medicine, University of Southern California, Los Angeles, California 90027
| | - Skorn Ponrartana
- Department of Radiology, Children's Hospital Los Angeles, Keck School of Medicine, University of Southern California, Los Angeles, California 90027
| | - Stefano Mora
- Laboratory of Pediatric Endocrinology, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy
| | - Clifford J Rosen
- Center for Clinical and Translational Research, Maine Medical Center Research Institute, Scarborough, Maine 04074
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Abstract
Generalized joint hypermobility (GJH) is a risk factor for developing adolescent idiopathic scoliosis (AIS); however, it is not known whether joint hypermobility influences the risk of progression to surgery. Beighton joint hypermobility scores were assessed in 570 female AIS patients. Multivariate analysis was carried out to determine whether Beighton hypermobility scores were predictors of surgical intervention. In this female AIS cohort, 24.7% (141/570) had GJH (Beighton score ≥4). Multivariate analysis showed that GJH did not influence the risk of surgery, although having no joint hypermobility (Beighton score=0) increased risk (odds ratio: 1.89; P=0.003). Females who had no hypermobility (score=0) had significantly larger curves than individuals who scored at least one point on the Beighton scale [50° (interquartile range: 26) vs. 42° (interquartile range: 24), P=0.001]. Evaluation of specific measures of joint hypermobility indicated that females who could not touch their palms to the floor were 2.1-fold more likely to have surgery than patients who could perform this task (P=0.001). None of the other features measured on the Beighton score correlated with surgical risk. The lack of joint hypermobility increases the odds of surgery in females with AIS. Specifically, inability to touch the palms to the floor is an indicator of progression to surgery.
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Giampietro PF, Pourquie O, Raggio C, Ikegawa S, Turnpenny PD, Gray R, Dunwoodie SL, Gurnett CA, Alman B, Cheung K, Kusumi K, Hadley-Miller N, Wise CA. Summary of the first inaugural joint meeting of the International Consortium for scoliosis genetics and the International Consortium for vertebral anomalies and scoliosis, March 16-18, 2017, Dallas, Texas. Am J Med Genet A 2018; 176:253-256. [PMID: 29159998 PMCID: PMC6525596 DOI: 10.1002/ajmg.a.38550] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Revised: 10/23/2017] [Accepted: 10/31/2017] [Indexed: 12/13/2022]
Abstract
Scoliosis represents the most common musculoskeletal disorder in children and affects approximately 3% of the world population. Scoliosis is separated into two major phenotypic classifications: congenital and idiopathic. Idiopathic scoliosis is defined as a curvature of the spine of 10° or greater visualized on plane radiograph and does not have associated vertebral malformations (VM). "Congenital" scoliosis (CS) due to malformations in vertebrae is frequently associated with other birth defects. Recently, significant advances have been made in understanding the genetic basis of both conditions. There is evidence that both conditions are etiologically related. A 2-day conference entitled "Genomic Approaches to Understanding and Treating Scoliosis" was held at Scottish Rite Hospital for Children in Dallas, Texas, to synergize research in this field. This first combined, multidisciplinary conference featured international scoliosis researchers in basic and clinical sciences. A major outcome of the conference advancing scoliosis research was the proposal and subsequent vote in favor of merging the International Consortium for Vertebral Anomalies and Scoliosis (ICVAS) and International Consortium for Scoliosis Genetics (ICSG) into a single entity called International Consortium for Spinal Genetics, Development, and Disease (ICSGDD). The ICSGDD is proposed to meet annually as a forum to synergize multidisciplinary spine deformity research.
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Affiliation(s)
| | | | - Cathy Raggio
- Hospital for Special Surgery, New York, New York
| | - Shiro Ikegawa
- RIKEN Center for Integrative Medical Sciences, Tokyo, Japan
| | | | | | - Sally L Dunwoodie
- Victor Chang Cardiac Research Institute, Darlinghurst, New South Wales, Australia
| | | | | | | | | | | | - Carol A Wise
- Texas Scottish Rite Hospital for Children, Dallas, Texas.,University of Texas Southwestern Medical Center, Dallas, Texas
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Fadzan M, Bettany-Saltikov J. Etiological Theories of Adolescent Idiopathic Scoliosis: Past and Present. Open Orthop J 2017; 11:1466-1489. [PMID: 29399224 PMCID: PMC5759107 DOI: 10.2174/1874325001711011466] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Revised: 09/01/2017] [Accepted: 09/11/2017] [Indexed: 12/11/2022] Open
Abstract
Adolescent idiopathic scoliosis is one of the most common spinal deformities, yet its cause is unknown. Various theories look to biomechanical, neuromuscular, genetic, and environmental origins, yet our understanding of scoliosis etiology is still limited. Determining the cause of a disease is crucial to developing the most effective treatment. Associations made with scoliosis do not necessarily point to causality, and it is difficult to determine whether said associations are primary (playing a role in development) or secondary (develop as a result of scoliosis). Scoliosis is a complex condition with highly variable expression, even among family members, and likely has many causes. These causes could be similar among homogenous groups of AIS patients, or they could be individual. Here, we review the most prevalent theories of scoliosis etiology and recent trends in research.
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Affiliation(s)
- Maja Fadzan
- Scoliosis 3DC, 3 Baldwin Green Common, Suite 204, Woburn, MA 01801, USA
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Einarsdottir E, Grauers A, Wang J, Jiao H, Escher SA, Danielsson A, Simony A, Andersen M, Christensen SB, Åkesson K, Kou I, Khanshour AM, Ohlin A, Wise C, Ikegawa S, Kere J, Gerdhem P. CELSR2 is a candidate susceptibility gene in idiopathic scoliosis. PLoS One 2017; 12:e0189591. [PMID: 29240829 PMCID: PMC5730153 DOI: 10.1371/journal.pone.0189591] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Accepted: 11/29/2017] [Indexed: 01/24/2023] Open
Abstract
A Swedish pedigree with an autosomal dominant inheritance of idiopathic scoliosis was initially studied by genetic linkage analysis, prioritising genomic regions for further analysis. This revealed a locus on chromosome 1 with a putative risk haplotype shared by all affected individuals. Two affected individuals were subsequently exome-sequenced, identifying a rare, non-synonymous variant in the CELSR2 gene. This variant is rs141489111, a c.G6859A change in exon 21 (NM_001408), leading to a predicted p.V2287I (NP_001399.1) change. This variant was found in all affected members of the pedigree, but showed reduced penetrance. Analysis of tagging variants in CELSR1-3 in a set of 1739 Swedish-Danish scoliosis cases and 1812 controls revealed significant association (p = 0.0001) to rs2281894, a common synonymous variant in CELSR2. This association was not replicated in case-control cohorts from Japan and the US. No association was found to variants in CELSR1 or CELSR3. Our findings suggest a rare variant in CELSR2 as causative for idiopathic scoliosis in a family with dominant segregation and further highlight common variation in CELSR2 in general susceptibility to idiopathic scoliosis in the Swedish-Danish population. Both variants are located in the highly conserved GAIN protein domain, which is necessary for the auto-proteolysis of CELSR2, suggesting its functional importance.
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Affiliation(s)
- Elisabet Einarsdottir
- Folkhälsan Institute of Genetics, and Molecular Neurology Research Program, University of Helsinki, Helsinki, Finland
- Department of Biosciences and Nutrition, Karolinska Institutet, Huddinge, Sweden
- * E-mail:
| | - Anna Grauers
- Department of Orthopaedics, Sundsvall and Härnösand County Hospital, Sundsvall, Sweden
- Department of Clinical Science, Intervention and Technology (CLINTEC), Karolinska Institutet, Stockholm, Sweden
| | - Jingwen Wang
- Department of Biosciences and Nutrition, Karolinska Institutet, Huddinge, Sweden
| | - Hong Jiao
- Department of Biosciences and Nutrition, Karolinska Institutet, Huddinge, Sweden
| | - Stefan A. Escher
- Genetic and Molecular Epidemiology Unit, Lund University Diabetes Centre, Department of Clinical Sciences, Lund University, Malmö, Sweden
| | - Aina Danielsson
- Department of Orthopaedics, Institute of Clinical Sciences, Sahlgren Academy at Gothenburg University, Göteborg, Sweden
- Department of Orthopaedics, Sahlgren University Hospital, Göteborg, Sweden
| | - Ane Simony
- Sector for Spine Surgery & Research, Middelfart Hospital, Middelfart, Denmark
| | - Mikkel Andersen
- Sector for Spine Surgery & Research, Middelfart Hospital, Middelfart, Denmark
| | | | - Kristina Åkesson
- Lund University, Department of Clinical Sciences Malmö, Clinical and Molecular Osteoporosis Research Unit, Malmö, Sweden
- Skåne University Hospital, Department of Orthopedics, Malmö, Sweden
| | - Ikuyo Kou
- Laboratory of Bone and Joint Diseases, Center for Integrative Medical Sciences, RIKEN, Tokyo, Japan
| | - Anas M. Khanshour
- Sarah M. and Charles E. Seay Center for Musculoskeletal Research, Texas Scottish Rite Hospital for Children, Dallas, Texas, United States of America
| | - Acke Ohlin
- Department of Orthopaedics, Skåne University Hospital, Malmö, Sweden
| | - Carol Wise
- Sarah M. and Charles E. Seay Center for Musculoskeletal Research, Texas Scottish Rite Hospital for Children, Dallas, Texas, United States of America
- McDermott Center for Human Growth and Development and Departments of Pediatrics and Orthopaedic Surgery, University of Texas Southwestern Medical Center at Dallas, Dallas, Texas, United States of America
| | - Shiro Ikegawa
- Laboratory of Bone and Joint Diseases, Center for Integrative Medical Sciences, RIKEN, Tokyo, Japan
| | - Juha Kere
- Folkhälsan Institute of Genetics, and Molecular Neurology Research Program, University of Helsinki, Helsinki, Finland
- Department of Biosciences and Nutrition, Karolinska Institutet, Huddinge, Sweden
- Department of Medical & Molecular Genetics, King’s College London, Guy’s Hospital, London, United Kingdom
| | - Paul Gerdhem
- Department of Clinical Science, Intervention and Technology (CLINTEC), Karolinska Institutet, Stockholm, Sweden
- Department of Orthopaedics, Karolinska University Hospital, Huddinge, Sweden
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Vona B, Maroofian R, Mendiratta G, Croken M, Peng S, Ye X, Rezazadeh J, Bahena P, Lekszas C, Haaf T, Edelmann L, Shi L. Dual Diagnosis of Ellis-van Creveld Syndrome and Hearing Loss in a Consanguineous Family. Mol Syndromol 2017; 9:5-14. [PMID: 29456477 PMCID: PMC5803684 DOI: 10.1159/000480458] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/02/2017] [Indexed: 11/19/2022] Open
Abstract
Multilocus analysis of rare or genetically heterogeneous diseases is a distinct advantage of next-generation sequencing (NGS) over conventional single-gene investigations. Recent studies have begun to uncover an under-recognized prevalence of dual molecular diagnoses in patients with a "blended" phenotype that is the result of 2 clinical diagnoses involving 2 separate genetic loci. This blended phenotype could be mistakenly interpreted as a novel clinical extension of a single-gene disorder. In this study, we ascertained a proband from a large consanguineous Iranian family who manifests postlingual, progressive, moderate hearing loss in addition to suspected Ellis-van Creveld syndrome phenotype. NGS with a customized skeletal dysplasia panel containing over 370 genes and subsequent bioinformatics analysis disclosed 2 homozygous mutations in EVC2 (c.2653C>T; p.Arg885*) and COL11A2 (c.966dup; p.Thr323Hisfs*19), respectively. This study highlights a dual molecular diagnosis in a patient with a blending of 2 distinct phenotypes and illustrates the advantage and importance of this staple technology to facilitate rapid and comprehensive genetic dissection of a heterogeneous phenotype. The differentiation between phenotypic expansion of a genetic disorder and a blended phenotype that is due to more than one distinct genetic aberration is essential in order to reduce the diagnostic odyssey endured by patients.
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Affiliation(s)
- Barbara Vona
- Institute of Human Genetics, Julius Maximilians University Würzburg, Würzburg, Germany
| | - Reza Maroofian
- Medical Research, RILD Wellcome Wolfson Centre, University of Exeter Medical School, Royal Devon & Exeter NHS Foundation Trust, Exeter, UK
| | - Geetu Mendiratta
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Matthew Croken
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Siwu Peng
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Xiaoqian Ye
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Department of Dentistry, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- College of Dentistry, University of Illinois at Chicago, Chicago, Illinois, USA
| | - Jamileh Rezazadeh
- Genetic Counselling and Rehabilitation Unit, Welfare Organization, South Khorasan, Iran
| | - Paulina Bahena
- Institute of Human Genetics, Julius Maximilians University Würzburg, Würzburg, Germany
| | - Caroline Lekszas
- Institute of Human Genetics, Julius Maximilians University Würzburg, Würzburg, Germany
| | - Thomas Haaf
- Institute of Human Genetics, Julius Maximilians University Würzburg, Würzburg, Germany
| | - Lisa Edelmann
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Lisong Shi
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
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Yang F, Zhu XH, Zhang Q, Sun NX, Ji YX, Ma JZ, Xiao B, Ding HX, Sun SH, Li W. Genomic Characteristics of Gender Dysphoria Patients and Identification of Rare Mutations in RYR3 Gene. Sci Rep 2017; 7:8339. [PMID: 28827537 PMCID: PMC5567086 DOI: 10.1038/s41598-017-08655-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Accepted: 07/14/2017] [Indexed: 11/26/2022] Open
Abstract
Gender dysphoria (GD) is characterized by an incongruence between the gender assigned at birth and the gender with which one identifies. The biological mechanisms of GD are unclear. While common genetic variants are associated with GD, positive findings have not always been replicated. To explore the role of rare variants in GD susceptibility within the Han Chinese population, whole-genome sequencing of 9 Han female-to-male transsexuals (FtMs) and whole-exome sequencing of 4 Han male-to-female transsexuals (MtFs) were analyzed using a pathway burden analysis in which variants are first collapsed at the gene level and then by Gene Ontology terms. Novel nonsynonymous variants in ion transport genes were significantly enriched in FtMs (P- value, 2.41E-10; Fold enrichment, 2.8) and MtFs (P- value, 1.04E-04; Fold enrichment, 2.3). Gene burden analysis comparing 13 GD cases and 100 controls implicated RYR3, with three heterozygous damaging mutations in unrelated FtMs and zero in controls (P = 0.001). Importantly, protein structure modeling of the RYR3 mutations indicated that the R1518H mutation made a large structural change in the RYR3 protein. Overall, our results provide information about the genetic basis of GD.
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Affiliation(s)
- Fu Yang
- Department of Medical Genetics, Second Military Medical University, Shanghai, 200433, China.
| | - Xiao-Hai Zhu
- Department of Plastic Surgery, Changzheng Hospital, Second Military Medical University, Shanghai, 200433, China
| | - Qing Zhang
- Center of Reproductive Medicine, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai, 200003, China
| | - Ning-Xia Sun
- Center of Reproductive Medicine, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai, 200003, China
| | - Yi-Xuan Ji
- Center of Reproductive Medicine, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai, 200003, China
| | - Jin-Zhao Ma
- Department of Medical Genetics, Second Military Medical University, Shanghai, 200433, China
| | - Bang Xiao
- Department of Medical Genetics, Second Military Medical University, Shanghai, 200433, China
| | - Hai-Xia Ding
- Center of Reproductive Medicine, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai, 200003, China
| | - Shu-Han Sun
- Department of Medical Genetics, Second Military Medical University, Shanghai, 200433, China.
| | - Wen Li
- Center of Reproductive Medicine, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai, 200003, China.
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Abstract
STUDY DESIGN Mutation analysis of a candidate disease gene in a cohort of patients with moderate to severe Adolescent idiopathic scoliosis (AIS). OBJECTIVE To investigate if damaging mutations in the planar cell polarity gene VANGL1 could be identified in AIS patients. SUMMARY OF BACKGROUND DATA AIS is a spinal deformity which occurs in 1% to 3% of the population. The cause of AIS is often unknown, but genetic factors are important in the etiology. Rare variants in genes encoding regulators of WNT/planar cell polarity (PCP) signaling were recently identified in AIS patients. METHODS We analyzed the coding region of the VANGL1 gene for mutations using Sanger sequencing in 157 unrelated patients with moderate to severe AIS. The frequency of mutations in the patient cohort was compared with their frequency in a large cohort of controls. Functional effect of mutations were predicted in silico and analyzed in vitro by transfection of normal and mutant recombinant VANGL1 protein in Madin-Darby Canine Kidney (MDCK) cells. Cellular localization of recombinant proteins was analyzed by immunofluorescence microscopy analysis. RESULTS In the patient cohort, we identified two rare missense mutations in VANGL1, encoding a receptor involved in WNT/PCP signaling. The mutations, p.I136N and p.F440 V, are very rare in the normal population. Both mutations are predicted to be damaging, and to affect evolutionary conserved amino acid residues of VANGL1. Functional analysis in MDCK cells showed that the mutations abolished the normal translocation of VANGL1 to the cell membrane. CONCLUSION Our data support that mutations in genes involved in WNT/PCP signaling may be associated with AIS, but replication in other patient cohorts and further analysis of the role of WNT/PCP signaling in AIS is needed. LEVEL OF EVIDENCE 4.
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Genetic Markers for Adolescent Idiopathic Scoliosis on Chromosome 19p13.3 among Saudi Arabian Girls. Asian Spine J 2017; 11:167-173. [PMID: 28443159 PMCID: PMC5401829 DOI: 10.4184/asj.2017.11.2.167] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Revised: 08/26/2016] [Accepted: 09/02/2016] [Indexed: 12/04/2022] Open
Abstract
Study Design Prospective case-controlled study. Purpose This study aimed to assess genetic influence in Saudi Arabian children with adolescent idiopathic scoliosis (AIS). Overview of Literature The genetic locus linked to chromosome 19p for idiopathic scoliosis has been described. A pilot study conducted at King Fahd Hospital of the University, Al-Khobar showed that three microsatellite markers (D19S216, D19S894, and DS1034) of chromosome 19p13.3 were significant in Saudi Arabian females compared with healthy subjects. Methods A total of 100 unrelated Saudi Arabian girls treated for AIS, their parents, healthy siblings, and healthy subjects were recruited for genetic analysis of markers on chromosome 19p13.3. After informed consent was obtained from their parents, blood samples were collected and parametric and nonparametric linkage analyses were performed using GENEHUNTER ver. 2.1. Multipoint linkage analysis was used to specify an autosomal dominant trait with a gene frequency of 0.01 and an estimated penetrance of 80% at the genotypic and allelic levels. Results Five hundred blood samples were collected and analyzed for microsatellite markers (D19S216, D19S894, and DS1034) of chromosome 19p13.3. Comparison among patients, family members, and healthy subjects revealed no significant association between markers and scoliosis at the genotypic level: D19S216 (p=0.21), D19S894 (p=0.37), and DS1034 (p=0.25). However, at the allelic level, a statistically significant association was observed for marker DS1034 (p=0.008), and marker D19S216 showed significance between fathers and patients (p<0.001) compared with patients and mothers. The other two markers, D19S216 (p=0.25) and D19S894 (p=0.17), showed no significant association between patients and mothers. Conclusions At the allelic level, marker DS1034 was significantly associated with AIS patients and their fathers. This allelic marker on chromosome 19p13.3 appears to be important in AIS etiology.
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Wren TAL, Ponrartana S, Gilsanz V. Vertebral cross-sectional area: an orphan phenotype with potential implications for female spinal health. Osteoporos Int 2017; 28:1179-1189. [PMID: 27975301 DOI: 10.1007/s00198-016-3832-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Accepted: 11/02/2016] [Indexed: 12/23/2022]
Abstract
A high priority in imaging-based research is the identification of the structural basis that confers greater risk for spinal disorders. New evidence indicates that factors related to sex influence the fetal development of the axial skeleton. Girls are born with smaller vertebral cross-sectional area compared to boys-a sexual dimorphism that is present throughout life and independent of body size. The smaller female vertebra is associated with greater flexibility of the spine that could represent the human adaptation to fetal load. It also likely contributes to the higher prevalence of spinal deformities, such as exaggerated lordosis and progressive scoliosis in adolescent girls when compared to boys, and to the greater susceptibility for spinal osteoporosis and vertebral fractures in elderly women than men.
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Affiliation(s)
- T A L Wren
- Department of Orthopaedic Surgery, Children's Hospital Los Angeles, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - S Ponrartana
- Department of Radiology, Children's Hospital Los Angeles, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - V Gilsanz
- Department of Orthopaedic Surgery, Children's Hospital Los Angeles, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA.
- Department of Radiology, Children's Hospital Los Angeles, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA.
- Department of Radiology, Children's Hospital Los Angeles, MS no. 81, 4650 Sunset Boulevard, Los Angeles, CA, 90027, USA.
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