The Inversion 16 (inv16) and t(8;21) chromosomal abnormalities are associated with a specific disease morphology and a relatively good prognosis in acute myelogenous leukemia. The genes encoded about each breakpoint have been cloned by the investigators as have the fusion cDNAs encoded by the chimeric genes. Core binding factor (CBF - formerly known as PEPB2), is a heterodimeric transcription factor formed by the alpha and beta subunit CBF gene products. The inv(16) causes a fusion of 5' coding sequences of CBFB (encoded at 16q22) to the MYH11 (a myosin heavy chain gene) 3' coding sequences (16p13). t(8;21) fuses AML1, encoding the alpha factor gene of the same transcription factor CBF (at 21q22 ), to another gene ETO (8q22). It is hypothesized that CBFB-MYH11 or AML1-ETO chimeric gene products may cause leukemia when expressed in hematopoietic progenitors. It is further hypothesized that the CBF transcription factor is of considerable importance in the regulation of hematopoiesis and may be involved in the pathogenesis of other leukemias. This project will aim to: l)Assess the effects on cell lines of expression of CBFB-MYH11 and AML1-ETO fusion proteins. Phenotypic changes including loss of differentiation, reversal of growth factor dependance, alterations in cell cycle and Cytosine Arabinoside sensitivity will be studied. 2) Test the effects of in vivo CBFB-MYH11 expression in mice or after retroviral transduction for expression in mouse bone marrow or via expression in transgenic animals. 3) Examine CBFB- MYH11 expression at various levels of hematopoietic differentiation and at various disease stages in patient samples. These experiments will define important biological and chemical properties of this novel chimeric gene and yield insights into the physiology of the normal CBF and its role in differentiation.

Agency
National Institute of Health (NIH)
Institute
National Cancer Institute (NCI)
Type
Research Program Projects (P01)
Project #
3P01CA055164-09S1
Application #
6417630
Study Section
Project Start
2000-08-04
Project End
2001-06-30
Budget Start
Budget End
Support Year
9
Fiscal Year
2001
Total Cost
Indirect Cost
Name
University of Texas MD Anderson Cancer Center
Department
Type
DUNS #
001910777
City
Houston
State
TX
Country
United States
Zip Code
77030
Ruvolo, Peter P; Ruvolo, Vivian R; Burks, Jared K et al. (2018) Role of MSC-derived galectin 3 in the AML microenvironment. Biochim Biophys Acta Mol Cell Res 1865:959-969
Ngankeu, Apollinaire; Ranganathan, Parvathi; Havelange, Violaine et al. (2018) Discovery and functional implications of a miR-29b-1/miR-29a cluster polymorphism in acute myeloid leukemia. Oncotarget 9:4354-4365
Le, Phuong M; Andreeff, Michael; Battula, Venkata Lokesh (2018) Osteogenic niche in the regulation of normal hematopoiesis and leukemogenesis. Haematologica :
Jiang, Xuejie; Mak, Po Yee; Mu, Hong et al. (2018) Disruption of Wnt/?-Catenin Exerts Antileukemia Activity and Synergizes with FLT3 Inhibition in FLT3-Mutant Acute Myeloid Leukemia. Clin Cancer Res 24:2417-2429
Ishizawa, Jo; Nakamaru, Kenji; Seki, Takahiko et al. (2018) Predictive Gene Signatures Determine Tumor Sensitivity to MDM2 Inhibition. Cancer Res 78:2721-2731
Sekihara, Kazumasa; Saitoh, Kaori; Han, Lina et al. (2017) Targeting mantle cell lymphoma metabolism and survival through simultaneous blockade of mTOR and nuclear transporter exportin-1. Oncotarget 8:34552-34564
Carter, Bing Z; Mak, Po Yee; Wang, Xiangmeng et al. (2017) Focal Adhesion Kinase as a Potential Target in AML and MDS. Mol Cancer Ther 16:1133-1144
Zeng, Zhihong; Liu, Wenbin; Tsao, Twee et al. (2017) High-throughput profiling of signaling networks identifies mechanism-based combination therapy to eliminate microenvironmental resistance in acute myeloid leukemia. Haematologica 102:1537-1548
Pan, Rongqing; Ruvolo, Vivian; Mu, Hong et al. (2017) Synthetic Lethality of Combined Bcl-2 Inhibition and p53 Activation in AML: Mechanisms and Superior Antileukemic Efficacy. Cancer Cell 32:748-760.e6
Jacamo, Rodrigo; Davis, R Eric; Ling, Xiaoyang et al. (2017) Tumor Trp53 status and genotype affect the bone marrow microenvironment in acute myeloid leukemia. Oncotarget 8:83354-83369

Showing the most recent 10 out of 422 publications