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Unknown,Transcriptomics,Genomics,Proteomics

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Transcription profiling of human tamoxifen treated myeloid leukemia K562-MERT cells

ABSTRACT: K562 cells, a myeloid leukemia cells line, were engineered to express a tamoxifen inducible dominant negative Myb (MERT). K562-MERT cells were cultured for 3 days in the absence and presence of 1 uM tamoxifen. The RNA was then extracted from the untreated and tamoxifen treated K562-MERT cells and submitted to Incyte Genomics for poly(A) RNA selection, probe preparation, hybridization of the labeled cDNA to the micorarray chip (Incyte Genomics) and data analysis.

ORGANISM(S): Homo sapiens

DISEASE(S): chronic myelogenous leukemia

SUBMITTER: Susan Shetzline

PROVIDER: E-MEXP-91 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Neuromedin U: a Myb-regulated autocrine growth factor for human myeloid leukemias.

Shetzline Susan E SE Rallapalli Ravikumar R Dowd Kelley J KJ Zou Shaomin S Nakata Yuji Y Swider Cezary R CR Kalota Anna A Choi John K JK Gewirtz Alan M AM

Blood 20040608 6

The c-myb proto-oncogene has been implicated in leukemogenesis, but possible mechanisms remain ill defined. To gain further insight to this process, we used transcript profiling in K562 cells expressing a dominant-negative Myb (MERT) protein. A total of 105 potential Myb gene targets were identified. Neuromedin U (NmU), a peptide affecting calcium transport, underwent the greatest expression change ( approximately 5-fold decrease). To verify a linkage between c-myb and NmU, their mRNA levels wer ...[more]

PMID: 15187020

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