The Genetics and Development of Scoliosis · Kenro Kusumi Sally L. Dunwoodie Editors The Genetics and Development of Scoliosis 123 Editors KenroKusumi SallyL.Dunwoodie SchoolofLifeSciences DevelopmentalBiologyDivision ArizonaStateUniversity VictorChangCardiacResearchInstitute P.O.Box874501 UniversityofNewSouthWales TempeAZ85287-4501 LowyPackerBuilding USA 405LiverpoolSt. DarlinghurstNSW2010 Australia ISBN978-1-4419-1405-7 e-ISBN978-1-4419-1406-4 DOI10.1007/978-1-4419-1406-4 SpringerNewYorkDordrechtHeidelbergLondon LibraryofCongressControlNumber:2009941779 ©SpringerScience+BusinessMedia,LLC2010 Allrightsreserved.Thisworkmaynotbetranslatedorcopiedinwholeorinpartwithoutthewritten permission of the publisher (Springer Science+Business Media, LLC, 233 Spring Street, New York, NY10013,USA),exceptforbriefexcerptsinconnectionwithreviewsorscholarlyanalysis.Usein connectionwithanyformofinformationstorageandretrieval,electronicadaptation,computersoftware, orbysimilarordissimilarmethodologynowknownorhereafterdevelopedisforbidden. Theuseinthispublicationoftradenames,trademarks,servicemarks,andsimilarterms,eveniftheyare notidentifiedassuch,isnottobetakenasanexpressionofopinionastowhetherornottheyaresubject toproprietaryrights. Printedonacid-freepaper SpringerispartofSpringerScience+BusinessMedia(www.springer.com) Theeditorsthankthepatientsandtheirfamilies whohaveparticipatedinscoliosisgeneticstudies andtheresearchcollaboratorswhohavemade theseeffortspossible Preface Scoliosisisalateralcurvatureofthespinethatisfrequentlyencounteredbyhealth- care professionals. Scoliosis has historically been categorized into congenital, neuromuscular, and idiopathic forms, and related curves include kyphosis, kypho- scoliosis,andlordosis.Patientsaffectedbyscoliosisareconcernedaboutprognosis, associated health conditions, and recurrence risks. Developmental genetic stud- ies of the spine and linkage and family-based association studies have led to recent advances in understanding the genetic etiology of idiopathic and congeni- talscoliosis.Advancesingenotypingandsequencingtechnologypromisetofurther increaseourunderstandingoftheheterogeneousgroupofdisordersinvolvingspinal curvatures. The inspiration for this volume was derived from the invited session, StraighteningOuttheCurves:UnderstandingtheGeneticsBasisofIdiopathicand CongenitalScoliosisorganizedatthe2008AmericanCollegeofMedicalGenetics, Annual Clinical Genetics Meeting in Phoenix, AZ, USA. The goals of that ses- sion were to bring leading researchers of both congenital and idiopathic scoliosis to present the current state of research and to compare potential shared develop- mentalandgeneticmechanisms.Followinguponthediscussionsfromthissession, thisvolumepresentstherecentadvancesinstudiesofearlyspinaldevelopmentand howdisruptionsinembryonicsegmentationcanleadtocongenitalvertebraldefects. Thisvolumealsodescribesarecentlydefinedclinicalclassificationsystemforcon- genitalvertebraldisorders,basedonidentificationofmutationsingenesregulating segmentation. In addition, recent reports of genetic loci predisposing patients to developjuvenileandadolescentidiopathicscoliosisarepresented,andkeyclinical featuresarereviewed.Finally,thereisdiscussionofhowgeneticheterogeneityand gene–environment interactions may contribute to congenital scoliosis and isolated vertebralmalformations. vii viii Preface Our understanding of the genetic and developmental mechanisms underlying scoliosisisrapidlyevolving,andourgoalineditingTheGeneticsandDevelopment ofScoliosiswastoprovideresearchers,clinicians,andstudentswiththeemerging viewsinthisfield. Tempe,Arizona KenroKusumi Darlinghurst,NewSouthWales SallyL.Dunwoodie Contents 1 GeneticRegulationofSomiteandEarlySpinalPatterning . . . . . 1 KenroKusumi,WalterEckalbar,andOlivierPourquié 2 DevelopmentandFunctionalAnatomyoftheSpine . . . . . . . . . 21 AlanRawlsandRebeccaE.Fisher 3 EnvironmentalFactorsandAxialSkeletalDysmorphogenesis . . . 47 PeterG.AlexanderandRockyS.Tuan 4 OverviewandComparisonofIdiopathic,Neuromuscular, andCongenitalFormsofScoliosis. . . . . . . . . . . . . . . . . . . 73 BenjaminAlman 5 Abnormal Vertebral Segmentation (or Segmentation DefectsoftheVertebrae)andtheSpondylocostalDysostoses . . . . 81 PeterD.Turnpenny 6 SpondylothoracicDysostosisinPuertoRico . . . . . . . . . . . . . 109 AlbertoSantiagoCornier 7 Progress in Understanding Genetic Contributions in SyndromicandNon-SyndromicDisordersAssociatedwith Congenital,Neuromuscular,andIdiopathicScoliosis . . . . . . . . 127 PhilipF.Giampietro 8 GeneticsandFunctionalPathologyofIdiopathicScoliosis . . . . . 153 NancyH.Miller 9 CurrentUnderstandingofGeneticFactorsinIdiopathic Scoliosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167 CarolA.WiseandSwarkarSharma 10 Conclusion: Trends and Predictions for Genetic andDevelopmentalBiologicalResearchonScoliosis . . . . . . . . 191 KenroKusumi Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199 ix Contributors PeterG.Alexander,Ph.D. DepartmentofOrthopaedicSurgery,Centerfor CellularandMolecularEngineering,UniversityofPittsburghSchoolofMedicine, Pittsburgh,PA15219,USA,[email protected] BenjaminAlman,M.D. HospitalforSickChildrenandUniversityofToronto, Toronto,Ontario,[email protected] AlbertoSantiagoCornier,M.D.,Ph.D. DepartmentofMolecularMedicine, HospitaldelaConcepción,SanGermán,PuertoRico;PonceSchoolofMedicine, Ponce,PuertoRico,[email protected] WalterEckalbar SchoolofLifeSciences,ArizonaStateUniversity,Tempe,AZ 85287,[email protected] RebeccaE.Fisher,Ph.D. DepartmentofBasicMedicalSciences,TheUniversity ofArizonaCollegeofMedicine–PhoenixinpartnershipwithArizonaState University,Phoenix,AZ85004,USA;SchoolofLifeSciences,ArizonaState University,Tempe,AZ85287,USA,rfi[email protected] PhilipF.Giampietro,M.D.,Ph.D. DepartmentofPediatrics,WaismanCenter, TheUniversityofWisconsin-Madison,Madison,WI53705-9345,USA, [email protected] KenroKusumi,Ph.D. SchoolofLifeSciences,ArizonaStateUniversity,Tempe, AZ85287,USA;DepartmentofBasicMedicalSciences,TheUniversityof ArizonaCollegeofMedicine–PhoenixinpartnershipwithArizonaState University,Phoenix,AZ85004,USA,[email protected] NancyH.Miller,M.D. DepartmentofOrthopaedicSurgery,Musculoskeletal ResearchCenter,TheChildren’sHospitalandUniversityofColoradoDenver, Aurora,CO80045,USA,[email protected] OlivierPourquié,Ph.D. DépartementdeBiologieCellulaireetDéveloppement, InstitutdeGénétiqueetdeBiologieMoléculaireetCellulaire(IGBMC),Illkirch, F-67400France;Inserm,U964,Illkirch,F-67400France;CNRS,UMR7104, Illkirch,F-67400France;UniversitédeStrasbourg,Strasbourg,F-67000France, [email protected] xi xii Contributors AlanRawls,Ph.D. SchoolofLifeSciences,ArizonaStateUniversity,Tempe,AZ 85287,USA;DepartmentofBasicMedicalSciences,TheUniversityofArizona CollegeofMedicine–PhoenixinpartnershipwithArizonaStateUniversity, Phoenix,AZ85004,USA,[email protected] SwarkarSharma,Ph.D. TexasScottishRiteHospitalforChildren,Dallas,TX 75219,USA,[email protected] RockyS.Tuan,Ph.D. DepartmentofOrthopaedicSurgery,CenterforCellular andMolecularEngineering,UniversityofPittsburghSchoolofMedicine, Pittsburgh,PA15219,USA,[email protected] PeterD.Turnpenny,M.B.Ch.B. ClinicalGeneticsDepartment,RoyalDevon& ExeterHospitalandPeninsulaMedicalSchool,ExeterEX12ED,UK, [email protected] CarolA.Wise,Ph.D. TexasScottishRiteHospitalforChildren,Dallas,TX 75219,USA,[email protected]
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