Clinical Report

Expression analysis of a 17p terminal deletion, including YWHAE, but not PAFAH1B1, associated with normal brain structure on MRI in a young girl†

  1. Keisuke Enomoto1,2,
  2. Yasuhiro Kishitani1,
  3. Makiko Tominaga1,
  4. Aki Ishikawa1,
  5. Noritaka Furuya1,
  6. Noriko Aida3,
  7. Mitsuo Masuno4,
  8. Ken-Ichiro Yamada5,
  9. Kenji Kurosawa1,6,*

Article first published online: 7 AUG 2012

DOI: 10.1002/ajmg.a.35542

Issue

American Journal of Medical Genetics Part A

American Journal of Medical Genetics Part A

Volume 158A, Issue 9, pages 2347–2352, September 2012

Additional Information

How to Cite

Enomoto, K., Kishitani, Y., Tominaga, M., Ishikawa, A., Furuya, N., Aida, N., Masuno, M., Yamada, K.-I. and Kurosawa, K. (2012), Expression analysis of a 17p terminal deletion, including YWHAE, but not PAFAH1B1, associated with normal brain structure on MRI in a young girl. Am. J. Med. Genet., 158A: 2347–2352. doi: 10.1002/ajmg.a.35542

Author Information

  1. 1

    Division of Medical Genetics, Kanagawa Children's Medical Center, Yokohama, Japan

  2. 2

    Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University Graduate School of Medical and Dental Science, Tokyo, Japan

  3. 3

    Department of Radiology, Kanagawa Children's Medical Center, Yokohama, Japan

  4. 4

    Genetic Counseling Program, Graduate School of Health and Welfare, Kawasaki University of Medical Welfare, Yokohama, Japan

  5. 5

    Department of Pediatrics, Hiratsuka City Hospital, Hiratsuka, Japan

  6. 6

    Kanagawa Children's Medical Center, Institue for Clinical Research, Yokohama, Japan

*Division of Medical Genetics, Kanagawa Children's Medical Center, 2-138-4 Mutsukawa, Minami-ku, Yokohama 232-8555, Japan.

  1. †

    How to cite this article: Enomoto K, Kishitani Y, Tominaga M, Ishikawa A, Furuya N, Aida N, Masuno M, Yamada K-I, Kurosawa K. 2012. Expression analysis of a 17p terminal deletion, including YWHAE, but not PAFAH1B1, associated with normal brain structure on MRI in a young girl. Am J Med Genet Part A. 158A:2347–2352.

Publication History

  1. Issue published online: 24 AUG 2012
  2. Article first published online: 7 AUG 2012
  3. Manuscript Accepted: 1 JUN 2012
  4. Manuscript Received: 28 SEP 2011

Funded by

  • The Ministry of Health, Labour and Welfare of Japan

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Keywords:

  • YWHAE;
  • PAFAH1B1;
  • microdeletion 17p13.3;
  • growth retardation

Abstract

Tyrosine 3-monooxygenase/tryptophan 5-monooxygenase activation protein, epsilon polypeptide (YWHAE), on chromosome 17p13.3, has been shown to play a crucial role in neuronal development. The deletion of YWHAE, but not platelet-activating factor acetylhydrolase, isoform 1b, subunit 1 (PAFAH1B1), underlies a newly recognized neurodevelopmental disorder, characterized by significant growth retardation, developmental delay/intellectual disability (DD/ID), distinctive facial appearance, and brain abnormalities. Here, we report on a girl with a terminal deletion of 17p13.3, including YWHAE but not PAFAH1B1, showing normal brain structure on MRI. She had mild developmental delay, a distinctive facial appearance, and severe growth retardation despite normal growth hormone levels, which was improved by growth hormone therapy. Expression analysis of YWHAE and PAFAH1B1 yielded results consistent with array CGH and FISH results. These results indicate that the dosage effect of YWHAE varies from severe to very mild structural brain abnormalities, and suggest that the expression of YWHAE is associated with a complex mechanism of neuronal development. © 2012 Wiley Periodicals, Inc.

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