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Application of interphase cytogenetics to monitor bone marrow transplants
Author(s) -
Vrazas Vickie,
Ooms Lisa M.,
Rudduck Christina,
Szer Jeffrey,
Campbell Lynda J.,
Garson O. Margaret
Publication year - 1995
Publication title -
american journal of hematology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.456
H-Index - 105
eISSN - 1096-8652
pISSN - 0361-8609
DOI - 10.1002/ajh.2830490104
Subject(s) - cytogenetics , interphase , biology , bone marrow , karyotype , transplantation , pathology , chromosome , immunology , medicine , genetics , gene
Chromosomal in situ hybridization (ISH) has extended the scope of cytogenetic analysis to nondividing cells by the use of chromosome‐specific probes detected by nonisotopic techniques. This provides a rapid and sensitive method for identifying chromosomes in interphase cells, and is useful in gauging engraftment following bone marrow transplantation, particularly when the number of cells obtained is minimal. We have performed ISH using a Y‐heterochromatin‐specific probe to monitor patients with malignant hematological disease who have received a sex‐mismatched transplant. The results have been compared with those obtained from concurrently performed standard cytogenetic analysis. Host cells were detected by interphase cytogenetics in all patients posttransplant, at times varying from 28‐1,825 days, whereas routine analysis detected host cells in only 4 patients, 3 of whom were found to be in relapse. The significance of the persistence of host cells is unknown, but it does not appear to indicate impending relapse. © 1995 Wiley‐Liss, Inc.