Phenotypic and Genotypic Correction of WASP Gene Mutation in Wiskott-Aldrich Syndrome by Unrelated Cord Blood Stem Cell Transplantationopen access
- Authors
- Lee, Young-Ho; Lim, Yeon-Jung; Shin, Su-Ah; Song, Chang-Hwa; Jo, Eun-Kyeong; Jung, Jin-A; Lee, Ha-Baik
- Issue Date
- Aug-2009
- Publisher
- KOREAN ACAD MEDICAL SCIENCES
- Keywords
- Wiskott-Aldrich Syndrome; WASP; Unrelated Cord Blood Stem Cell Transplantation
- Citation
- JOURNAL OF KOREAN MEDICAL SCIENCE, v.24, no.4, pp.751 - 754
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- JOURNAL OF KOREAN MEDICAL SCIENCE
- Volume
- 24
- Number
- 4
- Start Page
- 751
- End Page
- 754
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/176403
- DOI
- 10.3346/jkms.2009.24.4.751
- ISSN
- 1011-8934
- Abstract
- We present two cases of Wiskott-Aldrich syndrome (WAS), in which nonsense mutations in the WASP gene were corrected phenotypically as well as genotypically by unrelated cord blood stem cell transplantation (CBSCT). Two male patients were diagnosed with WAS at the age of 5-month and 3-month and each received unrelated CBSCT at 16-month and 20-month of age, respectively. The infused cord blood (CB) units had 4/6 and 5/6 HLA matches and the infusion doses of total nucleated cells (TNC) and CD34+ cells were 6.24 x 10(7)/kg and 5.08 x 10(7)/kg for TNC and 1.33 x 10(5)/kg and 4.8 x 10(5)/kg for CD34+ cells, for UPN1 and UPN2, respectively. Complete donor cell chimerism was documented by variable number tandem repeat (VNTR) with neutrophil engraftment on days 31 and 13 and platelets on days 58 and 50, respectively. Immunologic reconstitution demonstrated that CBSCT resulted in consistent and stable T-, B-, and NK-cell development. Flow cytometric analysis for immunologic markers and sequence analysis of the WASP gene mutation revealed a normal pattern after CBSCT. These cases demonstrate that CBs can be an important source of stem cells for the phenotypical and genotypical correction of genetic diseases such as WAS.
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