Josh Deignan PhD

Joshua Deignan

Contact Information
Josh Deignan, PhD, FACMG
UCLA Path & Lab Med
Los Angeles, CA 90095
Phone: 310-825-5264
[email protected]

Academic Title
Associate Clinical Professor, Pathology & Laboratory Medicine


Bio
Josh Deignan, PhD, FACMG, is an Associate Clinical Professor in the Department of Pathology and Laboratory Medicine in the David Geffen School of Medicine at UCLA. He is one of the Associate Directors of the UCLA Molecular Diagnostics Laboratories, specializing in the areas of molecular genetics and genomics. He performed his undergraduate work in Genetics at the University of California, Davis, and he received his Ph.D. in Pathology and completed his medical genetics fellowship training at UCLA. He is board-certified by the American Board of Medical Genetics and Genomics in Clinical Molecular Genetics and Genomics and is licensed by the state of California as a Clinical Genetic Molecular Biologist (CGMB). 

Publications
Eno CC, Barton SK, Dorrani N, Cederbaum SD, Deignan JL, Grody WW. Confidential genetic testing and electronic health records: A survey of current practices among Huntington disease testing centers. Mol Genet Genomic Med. 2020 Jan;8(1):e1026. doi: 10.1002/mgg3.1026. Epub 2019 Nov 7. PMID: 31701651; PMCID: PMC6978271

Ngo KJ, Rexach JE, Lee H, Petty LE, Perlman S, Valera JM, Deignan JL, Mao Y, Aker M, Posey JE, Jhangiani SN, Coban-Akdemir ZH, Boerwinkle E, Muzny D, Nelson AB, Hassin-Baer S, Poke G, Neas K, Geschwind MD, Grody WW, Gibbs R, Geschwind DH, Lupski JR, Below JE, Nelson SF, Fogel BL. A diagnostic ceiling for exome sequencing in cerebellar ataxia and related neurological disorders. Hum Mutat. 2019 Nov 6;10.1002/humu.23946. doi: 10.1002/humu.23946. [Epub ahead of print]. PMID: 31692161

Bell S, Rousseau J, Peng H, Aouabed Z, Priam P, Theroux JF, Jefri M, Tanti A, Wu H, Kolobova I, Silviera H, Manzano-Vargas K, Ehresmann S, Hamdan FF, Hettige N, Zhang X, Antonyan L, Nassif C, Ghaloul-Gonzalez L, Sebastian J, Vockley J, Begtrup AG, Wentzensen IM, Crunk A, Nicholls RD, Herman KC, Deignan JL, Al- Hertani W, Efthymiou S, Salpietro V, Miyake N, Makita Y, Matsumoto N, Østern R, Houge G, Hafström M, Fassi E, Houlden H, Klein Wassink-Ruiter JS, Nelson D, Goldstein A, Dabir T, van Gils J, Bourgeron T, Delorme R, Cooper GM, Martinez JE, Finnila CR, Carmant L, Lortie A, Oegema R, van Gassen K, Mehta SG, Huhle D, Abou Jamra R, Martin S, Brunner HG, Lindhout D, Au M, Graham JM Jr, Coubes C, Turecki G, Gravel S, Mechawar N, Rossignol E, Michaud JL, Lessard J, Ernst C, Campeau PM. Mutations in ACTL6B Cause Neurodevelopmental Deficits and Epilepsy and Lead to Loss of Dendrites in Human Neurons. Am J Hum Genet. 2019 May 2;104(5):815-834. doi: 10.1016/j.ajhg.2019.03.022. Epub 2019 Apr 25. PMID: 31031012; PMCID: PMC6507050

Deignan JL, Chung WK, Kearney HM, Monaghan KG, Rehder CW, Chao EC; ACMG Laboratory Quality Assurance Committee. Points to consider in the reevaluation and reanalysis of genomic test results: a statement of the American College of Medical Genetics and Genomics (ACMG). Genet Med. 2019 Jun;21(6):1267-1270. doi: 10.1038/s41436-019-0478-1. Epub 2019 Apr 24. PMID: 31015575; PMCID: PMC6559819

David KL, Best RG, Brenman LM, Bush L, Deignan J, Flannery D, Hoffman JD, Holm I, Miller DT, O'Leary J, Pyeritz RE. Response to Knoppers et al. Genet Med. 2019 Oct;21(10):2403. doi: 10.1038/s41436-019-0496-z. Epub 2019 Apr 11. PMID: 30971833

Parker J, Mozaffar T, Messmore A, Deignan JL, Kimonis VE, Ringman JM. Homozygosity for the A431E mutation in PSEN1 presenting with a relatively aggressive phenotype. Neurosci Lett. 2019 Apr 23;699:195-198. doi: 10.1016/j.neulet.2019.01.047. Epub 2019 Feb 1. PMID: 30716424

David KL, Best RG, Brenman LM, Bush L, Deignan JL, Flannery D, Hoffman JD, Holm I, Miller DT, O'Leary J, Pyeritz RE; ACMG Social Ethical Legal Issues Committee. Patient re-contact after revision of genomic test results: points to consider-a statement of the American College of Medical Genetics and Genomics (ACMG). Genet Med. 2019 Apr;21(4):769-771. doi: 10.1038/s41436-018-0391-z. Epub 2018 Dec 22. PMID: 30578420

Harrison SM, Dolinksy JS, Chen W, Collins CD, Das S, Deignan JL, Garber KB, Garcia J, Jarinova O, Knight Johnson AE, Koskenvuo JW, Lee H, Mao R, Mar-Heyming R, McFaddin AS, Moyer K, Nagan N, Rentas S, Santani AB, Seppälä EH, Shirts BH, Tidwell T, Topper S, Vincent LM, Vinette K, Rehm HL; ClinGen Sequence Variant Inter-Laboratory Discrepancy Resolution Working Group. Scaling resolution of variant classification differences in ClinVar between 41 clinical laboratories through an outlier approach. Hum Mutat. 2018 Nov;39(11):1641-1649. doi: 10.1002/humu.23643. PMID: 30311378; PMCID: PMC6188667

Datkhaeva I, Arboleda VA, Senaratne TN, Nikpour G, Meyerson C, Geng Y, Afshar Y, Scibetta E, Goldstein J, Quintero-Rivera F, Crandall BF, Grody WW, Deignan J, Janzen C. Identification of novel PIEZO1 variants using prenatal exome sequencing and correlation to ultrasound and autopsy findings of recurrent hydrops fetalis. Am J Med Genet A. 2018 Dec;176(12):2829-2834. doi: 10.1002/ajmg.a.40533. Epub 2018 Sep 23. PMID: 30244526

Eno C, Bayrak-Toydemir P, Bean L, Braxton A, Chao EC, El-Khechen D, Esplin ED, Friedman B, Hagman KDF, Hambuch T, Hernandez A, Juusola J, Londre G, Machado J, Mao R, Mighion L, Rehm HL, Ward P, Deignan JL. Misattributed parentage as an unanticipated finding during exome/genome sequencing: current clinical laboratory practices and an opportunity for standardization. Genet Med. 2019 Apr;21(4):861-866. doi: 10.1038/s41436-018-0265-4. Epub 2018 Sep 14. PMID: 30214068

Hiemenz MC, Ostrow DG, Busse TM, Buckley J, Maglinte DT, Bootwalla M, Done J, Ji J, Raca G, Ryutov A, Xu X, Zhen CJ, Conroy JM, Hazard FK, Deignan JL, Rogers BB, Treece AL, Parham DM, Gai X, Judkins AR, Triche TJ, Biegel JA. OncoKids: A Comprehensive Next-Generation Sequencing Panel for Pediatric Malignancies. J Mol Diagn. 2018 Nov;20(6):765-776. doi: 10.1016/j.jmoldx.2018.06.009. Epub 2018 Aug 20. PMID: 30138724

Mullegama SV, Klein SD, Nguyen DC, Kim A, Signer R, Fox M, Dorrani N, Hendershot A, Mardach R, Suddath R, Dipple K, Vilain E, Wong DA, Deignan JL, D Cederbaum S, Grody WW, Martinez-Agosto JA. Is it time to retire fragile X testing as a first-tier test for developmental delay, intellectual disability, and autism spectrum disorder? Genet Med. 2017 Dec;19(12):10.1038/gim.2017.146. doi: 10.1038/gim.2017.146. Epub 2017 Sep 21. PMID: 28933790

Schoch K, Meng L, Szelinger S, Bearden DR, Stray-Pedersen A, Busk OL, Stong N, Liston E, Cohn RD, Scaglia F, Rosenfeld JA, Tarpinian J, Skraban CM, Deardorff MA, Friedman JN, Akdemir ZC, Walley N, Mikati MA, Kranz PG, Jasien J, McConkie-Rosell A, McDonald M, Wechsler SB, Freemark M, Kansagra S, Freedman S, Bali D, Millan F, Bale S, Nelson SF, Lee H, Dorrani N; UCLA Clinical Genomics Center; Undiagnosed Diseases Network, Goldstein DB, Xiao R, Yang Y, Posey JE, Martinez-Agosto JA, Lupski JR, Wangler MF, Shashi V. A Recurrent De Novo Variant in NACC1 Causes a Syndrome Characterized by Infantile Epilepsy, Cataracts, and Profound Developmental Delay. Am J Hum Genet. 2017 Feb 2;100(2):343-351. doi: 10.1016/j.ajhg.2016.12.013. Epub 2017 Jan 26. PMID: 28132692; PMCID: PMC5294886

O'Daniel JM, McLaughlin HM, Amendola LM, Bale SJ, Berg JS, Bick D, Bowling KM, Chao EC, Chung WK, Conlin LK, Cooper GM, Das S, Deignan JL, Dorschner MO, Evans JP, Ghazani AA, Goddard KA, Gornick M, Farwell Hagman KD, Hambuch T, Hegde M, Hindorff LA, Holm IA, Jarvik GP, Knight Johnson A, Mighion L, Morra M, Plon SE, Punj S, Richards CS, Santani A, Shirts BH, Spinner NB, Tang S, Weck KE, Wolf SM, Yang Y, Rehm HL. A survey of current practices for genomic sequencing test interpretation and reporting processes in US laboratories. Genet Med. 2017 May;19(5):575-582. doi: 10.1038/gim.2016.152. Epub 2016 Nov 3. PMID: 27811861; PMCID: PMC5415437

Bie AS, Fernandez-Guerra P, Birkler RI, Nisemblat S, Pelnena D, Lu X, Deignan JL, Lee H, Dorrani N, Corydon TJ, Palmfeldt J, Bivina L, Azem A, Herman K, Bross P. Effects of a Mutation in the HSPE1 Gene Encoding the Mitochondrial Co-chaperonin HSP10 and Its Potential Association with a Neurological and Developmental Disorder. Front Mol Biosci. 2016 Oct 7;3:65. doi: 10.3389/fmolb.2016.00065. PMID: 27774450; PMCID: PMC5053987

Taché V, Bivina L, White S, Gregg J, Deignan J, Boyadjievd SA, Poulain FR. Lipoyltransferase 1 Gene Defect Resulting in Fatal Lactic Acidosis in Two Siblings. Case Rep Obstet Gynecol. 2016;2016:6520148. doi: 10.1155/2016/6520148. Epub 2016 May 10. PMID: 27247813; PMCID: PMC4877452