Overview

Our research focuses on three inherited human diseases:

Schimke immuno-osseous dysplasia

Spinocerebellar ataxia with neuropathy type 1

a disorder of sterol metabolism regulating behavior and neural development

We have identified the genetic causes of these diseases. Schimke immuno-osseous dysplasia is caused by a defect of organizing DNA within the nucleus. Spinocerebellar ataxia with neuropathy type 1 is caused by a defect in the ability to repair damaged DNA. The disorder of sterol metabolism, which is X-linked, causes brain neuron migration defects and intellectual disability in males but only aggressive behaviour in females.

To understand how these genetic defects cause disease, we are using multiple approaches including biochemistry, cell biology, fruit fly genetics and mouse genetics. Because these disorders cause alterations observed in other human diseases, we are also developing them as models for dissecting the pathophysiology of those diseases.

Publications

Long-read genome sequencing resolves a complex 13q structural variant associated with syndromic anophthalmia
American Journal of Medical Genetics Part A
Pierre K. Boerkoel and Katherine Dixon and Carrie Fitzsimons and Yaoqing Shen and Stephanie Huynh and Kamilla Schlade-Bartusiak and Luka Culibrk and Simon Chan and Cornelius F. Boerkoel and Steven J. M. Jones and Hui-Lin Chin
DOI: 10.1002/ajmg.a.62676
05/2022

The Clinical Variant Analysis Tool: Analyzing the evidence supporting reported genomic variation in clinical practice
Genetics in Medicine
Hui-Lin Chin and Nour Gazzaz and Stephanie Huynh and Iulia Handra and Lynn Warnock and Ashley Moller-Hansen and Pierre Boerkoel and Julius O.B. Jacobsen and Christèle du Souich and Nan Zhang and Kent Shefchek and Leah M. Prentice and Nicole Washington and Melissa Haendel and Linlea Armstrong and Lorne Clarke and Wenhui Laura Li and Damian Smedley and Peter N. Robinson and Cornelius F. Boerkoel
DOI: 10.1016/j.gim.2022.03.013
04/2022

An infant with congenital respiratory insufficiency and diaphragmatic paralysis: A novel BICD2 phenotype?
American Journal of Medical Genetics Part A
Hui-Lin Chin and Stephanie Huynh and Jahanshah Ashkani and Michael Castaldo and Katherine Dixon and Kathryn Selby and Yaoqing Shen and Marie Wright and Cornelius F. Boerkoel and Glenda Hendson and Steven J. M. Jones
DOI: 10.1002/ajmg.a.62578
03/2022

Mesenteric cysts, lymphatic leak, and cerebral cavernous malformation in a proband with KRIT1 -related disease
American Journal of Medical Genetics Part A
Ashley Moller-Hansen and Stephanie Huynh and Cornelius F. Boerkoel and Hui-Lin Chin
DOI: 10.1002/ajmg.a.62510
01/2022

Somatic mosaicism detected by genome-wide sequencing in 500 parent–child trios with suspected genetic disease: clinical and genetic counseling implications
Molecular Case Studies
Courtney B. Cook and Linlea Armstrong and Cornelius F. Boerkoel and Lorne A. Clarke and Christèle du Souich and Michelle K. Demos and William T. Gibson and Harinder Gill and Elena Lopez and Millan S. Patel and Kathryn Selby and Ziad Abu-Sharar and Alison M. Elliott and Jan M. Friedman
DOI: 10.1101/mcs.a006125
12/2021

An approach to rapid characterization of DMD copy number variants for prenatal risk assessment
American Journal of Medical Genetics Part A
Hui-Lin Chin and Kieran O'Neill and Kristal Louie and Lindsay Brown and Kamilla Schlade-Bartusiak and Patrice Eydoux and Rosemarie Rupps and Ali Farahani and Cornelius F. Boerkoel and Steven J. M. Jones
DOI: 10.1002/ajmg.a.62349
08/2021

Evaluating patients referred to a medical genetics connective tissue disorder clinic
Molecular Genetics and Metabolism
Brandon Chalazan and Hui-Lin Chin and Nour Gazzaz and Stephanie Huynh and Neal Boerkoel
DOI: 10.1016/s1096-7192(21)00313-9
04/2021

Single center experience in the application of evidence based medicine to the clinical interpretation of genomic sequence reports
Molecular Genetics and Metabolism
Hui-Lin Chin and Nour Gazzaz and Brandon Chalazan and Ashley Moller-Hansen and Laura Li and Stephanie Huynh and Neal Boerkoel
DOI: 10.1016/s1096-7192(21)00350-4
04/2021

Ethical considerations in the application of advanced genomic testing for a donor-conceived child
Molecular Genetics and Metabolism
Stephanie Huynh and Alexandra Olmos Perez and Alice Virani and Brandon Chalazan and Nour Gazzaz and Cornelius Boerkoel and Steven Jones and Hui-Lin Chin
DOI: 10.1016/s1096-7192(21)00551-5
04/2021

Single center experience in clinical whole-exome sequencing
Molecular Genetics and Metabolism
Nour Gazzaz and Stephanie Hyunh and Ashley Moller-Hansen and Brandon Chalazan and Neal Boerkoel and Hui-Lin Chin
DOI: 10.1016/s1096-7192(21)00306-1
04/2021

Pan-cancer RNA-seq data stratifies tumours by some hallmarks of cancer
Journal of Cellular and Molecular Medicine
F. Graeme Frost and Praveen F. Cherukuri and Samuel Milanovich and Cornelius F. Boerkoel
DOI: 10.1111/jcmm.14746
01/2020

A Novel AMELX Mutation, Its Phenotypic Features, and Skewed X Inactivation
Journal of Dental Research
X. Duan and S. Yang and H. Zhang and J. Wu and Y. Zhang and D. Ji and L. Tie and C.F. Boerkoel
DOI: 10.1177/0022034519854973
06/2019

Glycomics in rare diseases: from diagnosis tomechanism
Translational Research
Mariska Davids and Megan S. Kane and Lynne A. Wolfe and Camilo Toro and Cynthia J. Tifft and David Adams and Xueli Li and Mohd A. Raihan and Miao He and William A. Gahl and Cornelius F. Boerkoel and May Christine V. Malicdan
DOI: 10.1016/j.trsl.2018.10.005
04/2019

Reactive oxygen species stress increases accumulation of tyrosyl-DNA phsosphodiesterase 1 within mitochondria
Scientific Reports
Hok Khim Fam and Kunho Choi and Lauren Fougner and Chinten James Lim and Cornelius F. Boerkoel
DOI: 10.1038/s41598-018-22547-8
03/2018

FOXP1 haploinsufficiency: Phenotypes beyond behavior and intellectual disability?
American Journal of Medical Genetics Part A
Angela Myers and Christèle du Souich and Connie L. Yang and Lior Borovik and Jill Mwenifumbo and Rosemarie Rupps and CAUSES Study and Anna Lehman and Cornelius F. Boerkoel
DOI: 10.1002/ajmg.a.38462
12/2017

Pharmacogenomic incidental findings in 308 families: The NIH Undiagnosed Diseases Program experience
Genetics in Medicine
Elizabeth M.J. Lee and Karen Xu and Emma Mosbrook and Amanda Links and Jessica Guzman and David R. Adams and Elise Flynn and Elise Valkanas and Camillo Toro and Cynthia J. Tifft and Cornelius F. Boerkoel and William A. Gahl and Murat Sincan
DOI: 10.1038/gim.2016.47
12/2016

Chromatin changes inSMARCAL1deficiency: A hypothesis for the gene expression alterations of Schimke immuno-osseous dysplasia
Nucleus
Marie Morimoto and Kunho Choi and Cornelius F. Boerkoel and Kyoung Sang Cho
DOI: 10.1080/19491034.2016.1255835
11/2016

Phenotypic evolution of UNC80 loss of function
American Journal of Medical Genetics Part A
Elise Valkanas and Katherine Schaffer and Christopher Dunham and Valerie Maduro and Christèle du Souich and Rosemarie Rupps and David R. Adams and Alireza Baradaran-Heravi and Elise Flynn and May C. Malicdan and William A. Gahl and Camilo Toro and Cornelius F. Boerkoel
DOI: 10.1002/ajmg.a.37929
08/2016

Mitotic Intragenic Recombination: A Mechanism of Survival for Several Congenital Disorders of Glycosylation
The American Journal of Human Genetics
Megan S. Kane and Mariska Davids and Christopher Adams and Lynne A. Wolfe and Helen W. Cheung and Andrea Gropman and Yan Huang and Bobby G. Ng and Hudson H. Freeze and David R. Adams and William A. Gahl and Cornelius F. Boerkoel
DOI: 10.1016/j.ajhg.2015.12.007
02/2016

Two Sisters with Congenital Blindness caused by Osteoporosis-pseudoglioma Syndrome due to new Mutations in the LPR5 Gene
Acta Ophthalmologica
L. Welinder and J.M. Robitaille and C.F. Boerkoel and R. Rupps and C. Lyons
DOI: 10.1111/j.1755-3768.2015.1628
09/2015

Transcriptional and posttranscriptional mechanisms contribute to the dysregulation of elastogenesis in Schimke immuno-osseous dysplasia
Pediatric Research
Marie Morimoto and Karen J. Wang and Zhongxin Yu and Andrew K. Gormley and David Parham and Radovan Bogdanovic and Thomas Lücke and Christy Mayfield and Rosanna Weksberg and Glenda Hendson and Cornelius F. Boerkoel
DOI: 10.1038/pr.2015.156
08/2015

Congenital Bilateral Retinal Detachment in Two Siblings with Osteoporosis-Pseudoglioma Syndrome
Ophthalmic Genetics
Lotte G. Welinder and Johane M. Robitaille and Rosemarie Rupps and Cornelius F. Boerkoel and Christopher J. Lyons
DOI: 10.3109/13816810.2015.1016240
05/2015

Disruption of Golgi morphology and altered protein glycosylation in PLA2G6-associated neurodegeneration
Journal of Medical Genetics
Mariska Davids and Megan S Kane and Miao He and Lynne A Wolfe and Xueli Li and Mohd A Raihan and Katherine R Chao and William P Bone and Cornelius F Boerkoel and William A Gahl and Camilo Toro
DOI: 10.1136/jmedgenet-2015-103338
2015

SMARCAL1 and replication stress
Nucleus
Carol E. Bansbach and Cornelius F. Boerkoel and David Cortez
DOI: 10.4161/nucl.11739
10/2014

4q12-4q21.21 deletion genotype-phenotype correlation and the absence of piebaldism in presence ofKIThaploinsufficiency
American Journal of Medical Genetics Part A
Parisa Hemati and Christèle du Souich and Cornelius F. Boerkoel
DOI: 10.1002/ajmg.a.36821
10/2014

Desmosterolosis: an illustration of diagnostic ambiguity of cholesterol synthesis disorders
Orphanet Journal of Rare Diseases
Cristina Dias and Rosemarie Rupps and Benjamin Millar and Kunho Choi and Marco Marra and Michelle Demos and Lisa E Kratz and Cornelius F Boerkoel
DOI: 10.1186/1750-1172-9-94
06/2014

Coffin-Siris syndrome: Phenotypic evolution of a novelSMARCA4mutation
American Journal of Medical Genetics Part A
Michael Tzeng and Christèle du Souich and Helen Wing-Hong Cheung and Cornelius F. Boerkoel
DOI: 10.1002/ajmg.a.36533
04/2014

A cryptic familial rearrangement of 11p15.5, involving both imprinting centers, in a family with a history of short stature
American Journal of Medical Genetics Part A
Lindsay A. Brown and Rosemarie Rupps and Maria S. Peñaherrera and Wendy P. Robinson and Millan S. Patel and Patrice Eydoux and Cornelius F. Boerkoel
DOI: 10.1002/ajmg.a.36490
03/2014

Identification of a Putative Tdp1 Inhibitor (CD00509) by in Vitro and Cell-Based Assays
SLAS Discovery
Richard A. Dean and Hok Khim Fam and Jianghong An and Kunho Choi and Yoko Shimizu and Steven J.M. Jones and Cornelius F. Boerkoel and Heidrun Interthal and Tom A. Pfeifer
DOI: 10.1177/1087057114546551
2014

Elucidating the role of mitochondrial Tdp1 in response to oxidative stress
Mitochondrion
Hok Khim Fam and Miraj K. Chowdhury and Cheryl Walton and Kunho Choi and Glenda Hendson and Cornelius F. Boerkoel
DOI: 10.1016/j.mito.2013.07.048
11/2013

Bone marrow transplantation in Schimke immuno-osseous dysplasia
American Journal of Medical Genetics Part A
Alireza Baradaran-Heravi and Jonas Lange and Yumi Asakura and Pierre Cochat and Laura Massella and Cornelius F. Boerkoel
DOI: 10.1002/ajmg.a.36111
08/2013

TDP1 and PARP1 Deficiency Are Cytotoxic to Rhabdomyosarcoma Cells
Molecular Cancer Research
Hok Khim Fam and Cheryl Walton and Sheetal A. Mitra and Miraj Chowdhury and Nichola Osborne and Kunho Choi and Guobin Sun and Patrick C.W. Wong and Maureen J. O'Sullivan and Gulisa Turashvili and Samuel Aparicio and Timothy J. Triche and Mason Bond and Catherine J. Pallen and Cornelius F. Boerkoel
DOI: 10.1158/1541-7786.mcr-12-0575
08/2013

Cultural differences define diagnosis and genomic medicine practice: implications for undiagnosed diseases program in China
Frontiers of Medicine
Xiaohong Duan and Thomas Markello and David Adams and Camilo Toro and Cynthia Tifft and William A. Gahl and Cornelius F. Boerkoel
DOI: 10.1007/s11684-013-0281-3
07/2013

The Role of Nuclear Bodies in Gene Expression and Disease
Biology
Marie Morimoto and Cornelius Boerkoel
DOI: 10.3390/biology2030976
07/2013

Gene Clusters, Molecular Evolution and Disease: A Speculation
Advances in Genome Science: Changing Views on Living Organisms
DOI: 10.2174/9781608051298113010008
04/2013

Expression profile and mitochondrial colocalization of Tdp1 in peripheral human tissues
Journal of Molecular Histology
Hok Khim Fam and Miraj K. Chowdhury and Cheryl Walton and Kunho Choi and Cornelius F. Boerkoel and Glenda Hendson
DOI: 10.1007/s10735-013-9496-5
03/2013

Mucopolysaccharidosis IIIB (Sanfilippo syndrome type B) masquerading as a behavioral disorder
Molecular Genetics and Metabolism
Jacqueline Brady and Aditi Trehan and Rena Godfrey and Cynthia Tifft and Cornelius Boerkoel and Dennis Landis and Camilo Toro
DOI: 10.1016/j.ymgme.2012.11.042
02/2013

Kearns-Sayre syndrome presenting as isolated growth failure
Case Reports
C. M. Holloman and L. A. Wolfe and W. A. Gahl and C. F. Boerkoel
DOI: 10.1136/bcr-2012-007272
02/2013

Late-onset Tay–Sachs disease: A genocopy of spinal muscular atrophy?
Molecular Genetics and Metabolism
Aditi Trehan and Jacqueline Brady and Colleen Wahl and Cornelius Boerkoel and Camilo Toro and Cynthia Tifft
DOI: 10.1016/j.ymgme.2012.11.252
02/2013

Beckwith-Wiedemann syndrome in sibs discordant for IC2 methylation
American Journal of Medical Genetics Part A
Karen Y. Niederhoffer and Maria Peñaherrera and Denise Pugash and Rosemarie Rupps and Laura Arbour and Francine Tessier and Sanaa Choufani and Chunhua Zhao and Irina Manokhina and Cheryl Shuman and Wendy P. Robinson and Rosanna Weksberg and Cornelius F. Boerkoel
DOI: 10.1002/ajmg.a.35377
05/2012

Analysis of DNA sequence variants detected by high-throughput sequencing
Human Mutation
David R. Adams and Murat Sincan and Karin Fuentes Fajardo and James C. Mullikin and Tyler M. Pierson and Camilo Toro and Cornelius F. Boerkoel and Cynthia J. Tifft and William A. Gahl and Tom C. Markello
DOI: 10.1002/humu.22035
02/2012

VAR-MD: A tool to analyze whole exome-genome variants in small human pedigrees with mendelian inheritance
Human Mutation
Murat Sincan and Dimitre R Simeonov and David Adams and Thomas C. Markello and Tyler M. Pierson and Camilo Toro and William A. Gahl and Cornelius F. Boerkoel
DOI: 10.1002/humu.22034
02/2012

Hypothesis: SLC12A3 Polymorphism modifies thiazide hypersensitivity of antenatal Bartter syndrome to thiazide resistance
European Journal of Medical Genetics
Cherry Mammen and Rosemarie Rupps and Peter Trnka and Cornelius F. Boerkoel
DOI: 10.1016/j.ejmg.2011.12.006
02/2012

The NIH Undiagnosed Diseases Program: bonding scientists and clinicians
Disease Models & Mechanisms
William A. Gahl and Cornelius F. Boerkoel and Manfred Boehm
DOI: 10.1242/dmm.009258
01/2012

Expression profile of NSDHL in human peripheral tissues
Journal of Molecular Histology
Marie Morimoto and Christèle du Souich and Joanne Trinh and Keith W. McLarren and Cornelius F. Boerkoel and Glenda Hendson
DOI: 10.1007/s10735-011-9375-x
11/2011

Minimal genotype-phenotype correlation for small deletions within distal 1p36
American Journal of Medical Genetics Part A
A. Buck and C. du Souich and Cornelius F. Boerkoel
DOI: 10.1002/ajmg.a.34333
11/2011

Rituximab resistant evans syndrome and autoimmunity in Schimke immuno-osseous dysplasia
Pediatric Rheumatology
Jakub Zieg and Anna Krepelova and Alireza Baradaran-Heravi and Elena Levtchenko and Encarna Guillén-Navarro and Miroslava Balascakova and Martina Sukova and Tomas Seeman and Jiri Dusek and Nadezda Simankova and Tomas Rosik and Sylva Skalova and Jan Lebl and Cornelius F Boerkoel
DOI: 10.1186/1546-0096-9-27
09/2011

19p13.2 microduplication causes a Sotos syndrome-like phenotype and alters gene expression
Clinical Genetics
AM Lehman and C du Souich and D Chai and P Eydoux and JL Huang and AK Fok and L Avila and J Swingland and AD Delaney and B McGillivray and D Goldowitz and B Argiropoulos and MS Kobor and CF Boerkoel
DOI: 10.1111/j.1399-0004.2010.01615.x
01/2011

Lack of IL-7 Receptor Alpha Chain (CD127) Expression In T Cells Is a Hallmark of T-Cell Immunodeficiency In Schimke Immuno-Osseous Dysplasia (SIOD)
Blood
Mrinmoy Sanyal and Kira Y Dionis and Alireza Baradaran-Heravi and Benjamin Dekel and Arend Bo¨kenkamp and Cornelius F. Boerkoel and David B. Lewis
DOI: 10.1182/blood.v116.21.2767.2767
11/2010

Fetal alcohol syndrome: a phenocopy of spondylocarpotarsal synostosis syndrome?
Clinical Dysmorphology
Jennifer Vassel and Rosemarie Rupps and Deborah Krakow and Narman Puvanachandra and Jane A. Gardiner and Sharon R. Lazeo and Cornelius F. Boerkoel
DOI: 10.1097/mcd.0b013e3283398730
10/2010

SMARCAL1 and replication stress: An explanation for SIOD?
Nucleus
Carol E. Bansbach and Cornelius F. Boerkoel and David Cortez
DOI: 10.4161/nucl.1.3.11739
05/2010

Methylation profiling in individuals with Russell-Silver syndrome
American Journal of Medical Genetics Part A
Maria S. Peñaherrera and Susanne Weindler and Margot I. Van Allen and Siu-Li Yong and Daniel L. Metzger and Barbara McGillivray and Cornelius Boerkoel and Sylvie Langlois and Wendy P. Robinson
DOI: 10.1002/ajmg.a.33204
02/2010

Spinocerebellar Ataxia with Axonal Neuropathy
Advances in Experimental Medicine and Biology
Cheryl Walton and Heidrun Interthal and Ryuki Hirano and Mustafa A. M. Salih and Hiroshi Takashima and Cornelius F. Boerkoel
DOI: 10.1007/978-1-4419-6448-9_7
2010

Phenotypic and molecular characterization of a novelDCXdeletion and a review of the literature
Clinical Genetics
A Chou and C Boerkoel and C du Souich and R Rupps
DOI: 10.1111/j.1399-0004.2009.01206.x
08/2009

Improved outcome with immunosuppressive monotherapy after renal transplantation in Schimke-immuno-osseous dysplasia
Pediatric Transplantation
Thomas Lücke and Nele Kanzelmeyer and Alireza Baradaran-Heravi and Cornelius F. Boerkoel and Michael Burg and Jochen H. H. Ehrich and Lars Pape
DOI: 10.1111/j.1399-3046.2008.01013.x
06/2009

Gene Clusters, Molecular Evolution and Disease: A Speculation
Current Genomics
Leah Elizondo and Paymaan Jafar-Nejad and J. Clewing and Cornelius Boerkoel
DOI: 10.2174/138920209787581271
03/2009

A novel syndrome with psychiatric features and review of malformation syndromes with psychiatric disorders
American Journal of Medical Genetics Part A
Christèle du Souich and Jehannine C. Austin and Robin Friedlander and Cornelius F. Boerkoel
DOI: 10.1002/ajmg.a.32709
02/2009

Developmental expression pattern of the cholesterogenic enzyme NSDHL and negative selection of NSDHL-deficient cells in the heterozygous Bpa1H/+ mouse
Molecular Genetics and Metabolism
David Cunningham and Kaitlyn Spychala and Keith W. McLarren and Luis A. Garza and Cornelius F. Boerkoel and Gail E. Herman
DOI: 10.1016/j.ymgme.2009.06.016
2009

Clinical and genetic distinction of Schimke immuno-osseous dysplasia and cartilage-hair hypoplasia
American Journal of Medical Genetics Part A
Alireza Baradaran-Heravi and Christian Thiel and Anita Rauch and Martin Zenker and Cornelius F. Boerkoel and Ilkka Kaitila
DOI: 10.1002/ajmg.a.32406
08/2008

IMPROVED OUTCOME WITH IMMUNOSUPPRESSIVE MONOTHERAPY AFTER RENAL TRANSPLANTATION IN SCHIMKE-IMMUNO-OSSEOUS DYSPLASIA
Transplantation
L Pape and N Kanzelmeyer and A Baradaran-Heravi and C Boerkoel and M Burg and J Ehrich and T Lücke
DOI: 10.1097/01.tp.0000330742.09471.48
07/2008

Lethal neonatal Menkes' disease with severe vasculopathy and fractures
Acta Paediatrica
RP Jankov and CF Boerkoel and J Hellmann and WL Sirkin and Z Tumer and N Horn and A Feigenbaum
DOI: 10.1111/j.1651-2227.1998.tb00955.x
01/2007

Gray matter heterotopias and brachytelephalangic chondrodysplasia punctata: A complication of hyperemesis gravidarum induced vitamin K deficiency?
American Journal of Medical Genetics Part A
Nicola Brunetti-Pierri and Jill V. Hunter and Cornelius F. Boerkoel
DOI: 10.1002/ajmg.a.31573
01/2007

Cerebellar atrophy in Schimke-immuno-osseous dysplasia
American Journal of Medical Genetics Part A
Thomas Lücke and Johanna M. Clewing and Cornelius F. Boerkoel and Hans Hartmann and Anibh M. Das and Michael Knauth and Hartmut Becker and Frank Donnerstag
DOI: 10.1002/ajmg.a.31878
2007

Vaso-occlusion in Schimke-immuno-osseous Dysplasia: Is the NO Pathway Involved?
Hormone and Metabolic Research
T. Lücke and D. Tsikas and N. Kanzelmeyer and C. Boerkoel and J. Clewing and B. Vaske and J. Ehrich and A. Das
DOI: 10.1055/s-2006-954584
10/2006

Atrophy of vermis cerebelli in Schimke-immuno-osseous dysplasia
Neuropediatrics
T Lücke and JM Clewing and CF Boerkoel and H Hartmann and AM Das and M Knauth and H Becker and F Donnerstag
DOI: 10.1055/s-2006-953600
09/2006

A novel 8.5 MB dup(1)(p34.1p34.3) characterized by FISH in a child presenting with congenital heart defect and dysmorphic features
American Journal of Medical Genetics Part A
P.A. Lennon and C.F. Boerkoel and K. Plunkett and S. Soukam and S.W. Cheung and A. Patel
DOI: 10.1002/ajmg.a.31392
09/2006

Schimke Versus Non-Schimke Chronic Kidney Disease: An Anthropometric Approach
PEDIATRICS
T. Lucke and D. Franke and J. M. Clewing and C. F. Boerkoel and J. H.H. Ehrich and A. M. Das and M. Zivicnjak
DOI: 10.1542/peds.2005-2614
06/2006

Schimke immuno-osseous dysplasia: A cell autonomous disorder?
American Journal of Medical Genetics Part A
Leah I. Elizondo and Cheng Huang and Jennifer L. Northrop and Kimiko Deguchi and Johanna M. Clewing and Dawna L. Armstrong and Cornelius F. Boerkoel
DOI: 10.1002/ajmg.a.31089
02/2006

Molecular Mechanisms for CMT1A Duplication and HNPP Deletion
Annals of the New York Academy of Sciences
C. F. BOERKOEL and K. INOUE and L. T. REITER and L. E. WARNER and J. R. LUPSKI
DOI: 10.1111/j.1749-6632.1999.tb08563.x
02/2006

Schimke-immuno-osseous dysplasia: New mutation with weak genotype-phenotype correlation in siblings
American Journal of Medical Genetics Part A
Thomas Lücke and Heiko Billing and Emily A. Sloan and Cornelius F. Boerkoel and Doris Franke and Miriam Zimmering and Jochen H.H. Ehrich and Anibh M. Das
DOI: 10.1002/ajmg.a.30691
2005

SET binding factor 2 (SBF2) mutation causes CMT4B with juvenile onset glaucoma
Neurology
R. Hirano and H. Takashima and F. Umehara and H. Arimura and K. Michizono and Y. Okamoto and M. Nakagawa and C. F. Boerkoel and J. R. Lupski and M. Osame and K. Arimura
DOI: 10.1212/01.wnl.0000133211.40288.9a
08/2004

Fatal lymphoproliferative disorder in a child with Schimke immuno-osseous dysplasia
American Journal of Medical Genetics
Doris Taha and Cornelius F. Boerkoel and John Williamson Balfe and Mohammed Khalifah and Emily A. Sloan and Maha Barbar and Abdulrazzaq Haider and Hassan Kanaan
DOI: 10.1002/ajmg.a.30356
2004

Chromatin remodeling and human disease
Current Opinion in Genetics & Development
Cheng Huang and Emily A Sloan and Cornelius F Boerkoel
DOI: 10.1016/s0959-437x(03)00054-6
06/2003

CMT4A: Identification of a HispanicGDAP1 founder mutation
Annals of Neurology
Cornelius F. Boerkoel and Hiroshi Takashima and Masanori Nakagawa and Shuji Izumo and Dawna Armstrong and Ian Butler and Pedro Mancias and Sozos C. H. Papasozomenos and Lawrence Z. Stern and James R. Lupski
DOI: 10.1002/ana.10505
02/2003

Congenital hypomyelinating neuropathy, central dysmyelination, and Waardenburg-Hirschsprung disease: Phenotypes linked bySOX10 mutation
Annals of Neurology
Ken Inoue and Konstantin Shilo and Cornelius F. Boerkoel and Carol Crowe and Joram Sawady and James R. Lupski and Dimitri P. Agamanolis
DOI: 10.1002/ana.10404
11/2002

Periaxin mutations cause a broad spectrum of demyelinating neuropathies
Annals of Neurology
Hiroshi Takashima and Cornelius F. Boerkoel and Peter De Jonghe and Chantal Ceuterick and Jean-Jacques Martin and Thomas Voit and J.-Michael Schröder and Anna Williams and Peter J. Brophy and Vincent Timmerman and James R. Lupski
DOI: 10.1002/ana.10213
05/2002

The genetic convergence of Charcot-Marie-Tooth disease types 1 and 2 and the role of genetics in sporadic neuropathy
Current Neurology and Neuroscience Reports
Cornelius F. Boerkoel and Hiroshi Takashima and James R. Lupski
DOI: 10.1007/s11910-002-0056-8
02/2002

Screening for mutations in a genetically heterogeneous disorder: DHPLC versus DNA sequence for mutation detection in multiple genes causing Charcot-Marie-Tooth neuropathy
Genetics in Medicine
Hiroshi Takashima and Cornelius F Boerkoel and James R Lupski
DOI: 10.1097/00125817-200109000-00002
10/2001

EGR2 mutation R359W causes a spectrum of Dejerine-Sottas neuropathy
Neurogenetics
Cornelius F. Boerkoel and Hiroshi Takashima and Carlos A. Bacino and Donna Daentl and James R. Lupski
DOI: 10.1007/s100480100107
03/2001

Periaxin Mutations Cause Recessive Dejerine-Sottas Neuropathy
The American Journal of Human Genetics
Cornelius F. Boerkoel and Hiroshi Takashima and Pawel Stankiewicz and Carlos A. Garcia and Steven M. Leber and Laila Rhee-Morris and James R. Lupski
DOI: 10.1086/318208
02/2001

Denaturing high-performance liquid chromatography of the myotubularin-related 2 gene (MTMR2) in unrelated patients with Charcot-Marie-Tooth disease suggests a low frequency of mutation in inherited neuropathy
Neurogenetics
Alessandra Bolino and Lorne J. Lonie and Michael Zimmer and Cornelius F. Boerkoel and Hiroshi Takashima and Anthony P. Monaco and James R. Lupski
DOI: 10.1007/s100480000101
02/2001

Alström syndrome: further evidence for linkage to human chromosome 2p13
Human Genetics
G.B. Collin and J.D. Marshall and C.F. Boerkoel and A.V. Levin and R. Weksberg and J. Greenberg and J.L. Michaud and J.K. Naggert and P.M. Nishina
DOI: 10.1007/s004399900134
11/1999

Alström syndrome: further evidence for linkage to human chromosome 2p13
Human Genetics
G.B. Collin and J.D. Marshall and C.F. Boerkoel and A.V. Levin and R. Weksberg and J. Greenberg and J.L. Michaud and J.K. Naggert and P.M. Nishina
DOI: 10.1007/s004390051133
11/1999

Frequent monoallelic loss of D13S319 in multiple myeloma patients shown by interphase fluorescence in situ hybridization
Leukemia
H Chang and D Bouman and CF Boerkoel and AK Stewart and JA Squire
DOI: 10.1038/sj.leu.2401208
01/1999

Schimke immunoosseous dysplasia complicated by moyamoya phenomenon
American Journal of Medical Genetics
Cornelius F. Boerkoel and Malgorzata J.M. Nowaczyk and Susan I. Blaser and Wendy S. Meschino and Rosanna Weksberg
DOI: 10.1002/(sici)1096-8628(19980630)78:23.0.co;2-k
06/1998

Human isoleucyl-tRNA synthetase: Sequence of the cDNA, alternative mRNA splicing, and the characteristics of an unusually long C-terminal extension
Gene
Ralph C. Nichols and Nina Raben and Cornelius F. Boerkoel and Paul H. Plotz
DOI: 10.1016/0378-1119(94)00634-5
04/1995

Genetic defects in patients with glycogenosis type II (acid maltase deficiency)
Muscle & Nerve
Nina Raben and Ralph C. Nichols and Cornelius Boerkoel and Paul Plotz
DOI: 10.1002/mus.880181415
1995

A New Defective Retroviral Vector System Based on the Bryan Strain of Rous Sarcoma Virus
Virology
Cornelius F. Boerkoel and Mark J. Federspiel and Donald W. Salter and William Payne and Lyman B. Crittenden and Hsing-Jien Kung and Stephen H. Hughes
DOI: 10.1006/viro.1993.1418
08/1993

Transcriptional interaction between retroviral long terminal repeats (LTRs): mechanism of 5' LTR suppression and 3' LTR promoter activation of c-myc in avian B-cell lymphomas.
Journal of Virology
C F Boerkoel and H J Kung
DOI: 10.1128/jvi.66.8.4814-4823.1992
1992

Retroviral Mutagenesis of Cellular Oncogenes: A Review with Insights into the Mechanisms of Insertional Activation
Current Topics in Microbiology and Immunology
H. J. Kung and C. Boerkoel and T. H. Carter
DOI: 10.1007/978-3-642-76524-7_1
1991

B-lymphoma induction by reticuloendotheliosis virus: characterization of a mutated chicken syncytial virus provirus involved in c-myc activation
Journal of Virology
R A Swift and C Boerkoel and A Ridgway and D J Fujita and J B Dodgson and H J Kung
DOI: 10.1128/jvi.61.7.2084-2090.1987
07/1987

Establishing Analytical Validity of BeadChip Array Genotype Data by Comparison to Whole-Genome Sequence and Standard Benchmark Datasets
Praveen F Cherukuri and Melissa M. Soe and David E. Condon and Shubhi Bartaria and Kaitlynn Meis and Shaopeng Gu and Frederick G. Frost and Lindsay M. Fricke and Krzysztof P. Lubieniecki and Joanna M. Lubieniecka and Robert E. Pyatt and Catherine Hajek and Cornelius F. Boerkoel and Lynn Carmichael
DOI: 10.21203/rs.3.rs-745072/v1

Systematic over-expression screens for chromosome instability identify conserved dosage chromosome instability genes in yeast and human tumors
Supipi Duffy and Hok Khim Fam and Yikan Wang and Erin B Styles and Jung-Huyn Kim and J. Sidney Ang and Tejomayee Singh and Vladimir Larionov and Sohrab Shah and Brenda Andrews and Cornelius Boerkoel and Phillip Hieter
DOI: 10.1101/038489

Research

Disorders of cognition and behaviour
Many families and patients presenting to the Psychiatric and Medical Genetics Clinics have strong family histories of cognition and behaviour. We have been using multiple tools to map the molecular bases of their disease. Through these studies of individuals and families, we are identifying novel pathways that not only regulate neural development and maintenance, but also regulate human behaviour. Currently we are studying inherited causes of aggressive behaviour, obsessive compulsive disorder and intellectual disability. We have identified a studied pathway of sterol metabolism as a regulator of neural development and aggressive behaviour. To define the function of this pathway and the molecular pathology underlying the disease, we are employing a combination of yeast and murine genetics, cell culture systems and biochemical analyses.

Spinocerebellar ataxia with neuropathy: a developmental role for DNA repair
Tyrosyl-DNA phosphodiesterase 1 (Tdp1) repairs covalent topoisomerase IB-DNA complexes. In yeast, Tdp1 mutations cause double strand breaks through interference of the stalled topoisomerase IB complexes with DNA replication. This would suggest that mutations of Tdp1 predispose mammals to neoplasia or dysfunction of rapidly replicating tissues; however, we have found that deficiency of Tdp1 in humans causes spinocerebeller ataxia with axonal neuropathy (SCAN1), a disease of large terminally differentiated essentially non-dividing neuronal cells. We hypothesize that loss-of-function mutations in TDP1 cause SCAN1 either by interfering with DNA transcription or by inducing apoptosis in post-mitotic neurons rather than by interfering with DNA replication. To define the function of TDP1 and the molecular pathology underlying SCAN1, we are using a combination of Drosophila and murine genetics, and cell culture systems; these studies are being done in collaboration with Dr. Hiroshi Takashima. To date, our analyses suggest a novel biological process that is distinct from the previously described function of Tdp1. Our challenge is to use this process to gain insight into a new pathway for neural development and maintenance.

Schimke immuno-osseous dysplasia: exploration of a novel chromatin remodeling pathway
Presently the research in my laboratory focuses on defining the biologic and biochemical function of SMARCAL1 (swi/snf related, matrix associated, actin dependent regulator of chromatin, subfamily a-like 1), a protein homologous to helicases and the SNF2 family of chromatin remodeling proteins. Mutations in the SMARCAL1 gene cause Schimke immuno-osseous dysplasia (SIOD), an autosomal recessive fatal multisystem human disease. The SMARCAL1 protein has not been studied previously in any organism; therefore, its function and the underlying mechanism by which mutations cause SIOD are unknown. To define the function of SMARCAL1 and the molecular pathology underlying SIOD, we are employing a combination of Drosophila and murine genetics, cell culture systems and biochemical analyses to obtain insight into this novel pathway regulating tissue growth and maintenance.

SIOD is characterized by skeletal dysplasia, progressive renal failure and immunodeficiency. Additional but more variable disease features include atherosclerosis, hypothyroidism, and tooth and pigmentary abnormalities. SIOD is usually fatal within the first two decades of life because of renal failure, systemic infection, bone marrow failure, or cerebral ischemia. Our challenge is to explain molecularly how mutations of SMARCAL1 cause this severe pleiotropic disease, identify potential therapies to treat or ameliorate the disease, and derive insights into general principles of developmental biology and pathophysiology.

Honours & Awards

Clinical Investigator Award, Child & Family Research Institute - 2008

Michael Smith Foundation for Health Research Scholar Award in the Biomedical Sciences - 2008

Chairman’s Prize, United Mitochondrial Disease Foundation - 2010

Research Group Members

Adrienne Elbert, Clinical Resident or Fellow
Ashley Moller-Hansen, Undergraduate Student