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Biochemistry, Biophysics, and Structural Biology

Selected Works

2012

Leukemia

Articles 1 - 3 of 3

Full-Text Articles in Life Sciences

Analysis Of Expansion Of Myeloid Progenitors In Mice To Identify Leukemic Susceptibility Genes, Vincent Sollars, Ed Pequignot, Jay Rothstein, Arthur Buchberg Aug 2012

Analysis Of Expansion Of Myeloid Progenitors In Mice To Identify Leukemic Susceptibility Genes, Vincent Sollars, Ed Pequignot, Jay Rothstein, Arthur Buchberg

Vincent E Sollars

The myeloid progenitor cell compartment (MPC) exhibits pronounced expansion in human myeloid leukemias. It is becoming more apparent that progression of myelodysplastic syndromes and myeloproliferative diseases to acute myelogenous leukemia is the result of defects in progenitor cell maturation. The MPC of bone marrow was analyzed in mice using a cell culture assay for measuring the relative frequency of proliferative myeloid progenitors. Response to the cytokines SCF, IL-3, and GMCSF was determined by this assay for the leukemic mouse strain BXH-2 and ten other inbred mouse strains. Significant differences were found to exist among ten inbred mouse strains in the …


Epigenetic Modification As An Enabling Mechanism For Leukemic Transformation, Vincent Sollars Aug 2012

Epigenetic Modification As An Enabling Mechanism For Leukemic Transformation, Vincent Sollars

Vincent E Sollars

Cancer is now thought of as a fundamentally genetic disease, in that changes in the genome result in aberrant gene expression of oncogenes and tumor suppressor genes to promote oncogenesis. However, with our increasing knowledge of gene regulation, it is becoming obvious that changes in nucleotide sequence are not the sole mechanism for eliciting changes in transcription. An additional layer of regulation of gene expression, called epigenetics, is now being realized as increasingly important in oncogenesis. Epigenetics is defined as non-sequence based changes in chromatin that elicit changes in gene expression that are propagated through mitosis and/or meiosis. The alleles …


The Epigenomic Viewpoint On Cellular Differentiation Of Myeloid Progenitor Cells As It Pertains To Leukemogenesis, Vincent E. Sollars Aug 2012

The Epigenomic Viewpoint On Cellular Differentiation Of Myeloid Progenitor Cells As It Pertains To Leukemogenesis, Vincent E. Sollars

Vincent E Sollars

The new millennium has brought with it a surge of research in the field of epigenetics. This has included advances in our understanding of stem cell characteristics and mechanisms of commitment to cell lineages prior to differentiation. The nature of stem cells is similar to that of malignant cells in that they have unlimited self-renewal and protection from apoptosis, leading researchers to suspect that stem cells are the target of oncogenesis. This review will explore the idea of how epigenetic control of gene expression may contribute to mechanisms controlling differentiation of myeloid progenitor cells and its importance to our understanding …