Genomic analyses in Cornelia de Lange Syndrome and related diagnoses: Novel candidate genes, genotype–phenotype correlations and common mechanisms

Maninder Kaur, Justin Blair, Batsal Devkota, Sierra Fortunato, Dinah Clark, Audrey Lawrence, Jiwoo Kim, Wonwook Do, Benjamin Semeo, Olivia Katz, Devanshi Mehta, Nobuko Yamamoto, Emma Schindler, Zayd Al Rawi, Nina Wallace, Jonathan J. Wilde, Jennifer McCallum, Jinglan Liu, Dongbin Xu, Marie JacksonStefan Rentas, Ahmad Abou Tayoun, Zhang Zhe, Omar Abdul-Rahman, Bill Allen, Moris A. Angula, Kwame Anyane-Yeboa, Jesús Argente, Pamela H. Arn, Linlea Armstrong, Lina Basel-Salmon, Gareth Baynam, Lynne M. Bird, Daniel Bruegger, Gaik Siew Ch'ng, David Chitayat, Robin Clark, Gerald F. Cox, Usha Dave, Elfrede DeBaere, Michael Field, John M. Graham, Karen W. Gripp, Robert Greenstein, Neerja Gupta, Randy Heidenreich, Jodi Hoffman, Robert J. Hopkin, Kenneth L. Jones, Marilyn C. Jones, Ariana Kariminejad, Jillene Kogan, Baiba Lace, Julian Leroy, Sally Ann Lynch, Marie McDonald, Kirsten Meagher, Nancy Mendelsohn, Ieva Micule, John Moeschler, Sheela Nampoothiri, Kaoru Ohashi, Cynthia M. Powell, Subhadra Ramanathan, Salmo Raskin, Elizabeth Roeder, Marlene Rio, Alan F. Rope, Karan Sangha, Angela E. Scheuerle, Adele Schneider, Stavit Shalev, Victoria Siu, Rosemarie Smith, Cathy Stevens, Tinatin Tkemaladze, John Toimie, Helga Toriello, Anne Turner, Patricia G. Wheeler, Susan M. White, Terri Young, Kathleen M. Loomes, Mary Pipan, Ann Tokay Harrington, Elaine Zackai, Ramakrishnan Rajagopalan, Laura Conlin, Matthew A. Deardorff, Deborah McEldrew, Juan Pie, Feliciano Ramos, Antonio Musio, Antonie D. Kline, Kosuke Izumi, Sarah E. Raible, Ian D. Krantz

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Cornelia de Lange Syndrome (CdLS) is a rare, dominantly inherited multisystem developmental disorder characterized by highly variable manifestations of growth and developmental delays, upper limb involvement, hypertrichosis, cardiac, gastrointestinal, craniofacial, and other systemic features. Pathogenic variants in genes encoding cohesin complex structural subunits and regulatory proteins (NIPBL, SMC1A, SMC3, HDAC8, and RAD21) are the major pathogenic contributors to CdLS. Heterozygous or hemizygous variants in the genes encoding these five proteins have been found to be contributory to CdLS, with variants in NIPBL accounting for the majority (>60%) of cases, and the only gene identified to date that results in the severe or classic form of CdLS when mutated. Pathogenic variants in cohesin genes other than NIPBL tend to result in a less severe phenotype. Causative variants in additional genes, such as ANKRD11, EP300, AFF4, TAF1, and BRD4, can cause a CdLS-like phenotype. The common role that these genes, and others, play as critical regulators of developmental transcriptional control has led to the conditions they cause being referred to as disorders of transcriptional regulation (or “DTRs”). Here, we report the results of a comprehensive molecular analysis in a cohort of 716 probands with typical and atypical CdLS in order to delineate the genetic contribution of causative variants in cohesin complex genes as well as novel candidate genes, genotype–phenotype correlations, and the utility of genome sequencing in understanding the mutational landscape in this population.

Original languageEnglish (US)
Pages (from-to)2113-2131
Number of pages19
JournalAmerican Journal of Medical Genetics, Part A
Volume191
Issue number8
DOIs
StatePublished - Aug 2023
Externally publishedYes

Keywords

  • CdLS
  • Cornelia de Lange Syndrome
  • HDAC8
  • NIPBL
  • RAD21
  • SMC1A
  • SMC3
  • cohesin
  • genome
  • transcription

ASJC Scopus subject areas

  • Genetics
  • Genetics(clinical)

Fingerprint

Dive into the research topics of 'Genomic analyses in Cornelia de Lange Syndrome and related diagnoses: Novel candidate genes, genotype–phenotype correlations and common mechanisms'. Together they form a unique fingerprint.

Cite this