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BACKGROUND
Chromosomal abnormalities are important in the diagnosis and prognosis of patients with acute myeloid leukemia (AML). Genomic microarray techniques detect recurrent copy‐neutral loss of heterozygosity (cnLOH) in addition to copy number aberrations. However, the clinical utility has not been fully established. Therefore, in the current study, the authors examined the prognostic impact of...
Background: The ability of cyclin-dependent kinases (CDKs) to promote cell proliferation is opposed by cyclin-dependent kinase inhibitors (CKIs), proteins that bind tightly to cyclin–CDK complexes and block the phosphorylation of exogenous substrates. Mice with targeted CKI gene deletions have only subtle proliferative abnormalities, however, and cells prepared from these mice seem remarkably normal...
Background: In many vertebrate cell lineages, precursor cells divide a limited number of times before they arrest and terminally differentiate into postmitotic cells. It is not known what causes them to stop dividing. We have been studying the ‘stopping’ mechanism in the proliferating precursor cells that give rise to oligodendrocytes, the cells that make myelin in the central nervous system. We showed...
Targeted disruption of the murine p27 KiP1 gene caused a gene dose-dependent increase in animal size without other gross morphologic abnormalities. All tissues were enlarged and contained more cells, although endocrine abnormalities were not evident. Thymic hyperplasia was associated with increased T lymphocyte proliferation, and T cells showed enhanced IL-2 responsiveness in...
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