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Lifelong persistence of AML associated MLL partial tandem duplications (MLL-PTD) in healthy adults
- Source :
-
Leukemia Research . Sep2006, Vol. 30 Issue 9, p1091-1096. 6p. - Publication Year :
- 2006
-
Abstract
- Abstract: AML-associated MLL-PTD contribute to leukemogenesis by a gain of function and confer an unfavorable prognosis. Like other leukemia associated aberrations they are also present in healthy adults. To delineate the leukemogenic mechanism we tracked down MLL-PTD in normal hematopoiesis and investigated cord blood samples. MLL-PTD were observed in 56/60 (93%) of all cord bloods. In contrast to AML, the transcript frequency in cord blood was four log scales lower as determined by real-time PCR. The CD34+ progenitor cell, CD33+ myeloid, CD19+ B-lymphoid and CD3+ T-lymphoid subfractions were positive. The ubiquitous presence of MLL-PTD in cord blood implicates a lifelong exposure, not an accumulation during lifetime. Since also present in the stem cell subfraction, these factors seem not to be major determinants in MLL-PTD leukemogenesis. [Copyright &y& Elsevier]
- Subjects :
- *LEUKEMIA etiology
*LEUKEMIA
*PROGNOSIS
*BLOOD
Subjects
Details
- Language :
- English
- ISSN :
- 01452126
- Volume :
- 30
- Issue :
- 9
- Database :
- Academic Search Index
- Journal :
- Leukemia Research
- Publication Type :
- Academic Journal
- Accession number :
- 21576431
- Full Text :
- https://doi.org/10.1016/j.leukres.2006.02.005