Transcriptional Regulatory Networks Downstream of TAL1/SCL in T-cell Acute Lymphoblastic Leukemia Running head title: TAL1 transcriptional networks in T-ALL
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منابع مشابه
Transcriptional regulatory networks downstream of TAL1/SCL in T-cell acute lymphoblastic leukemia.
Aberrant expression of 1 or more transcription factor oncogenes is a critical component of the molecular pathogenesis of human T-cell acute lymphoblastic leukemia (T-ALL); however, oncogenic transcriptional programs downstream of T-ALL oncogenes are mostly unknown. TAL1/SCL is a basic helix-loop-helix (bHLH) transcription factor oncogene aberrantly expressed in 60% of human T-ALLs. We used chro...
متن کاملCore transcriptional regulatory circuit controlled by the TAL1 complex in human T cell acute lymphoblastic leukemia.
The oncogenic transcription factor TAL1/SCL is aberrantly expressed in over 40% of cases of human T cell acute lymphoblastic leukemia (T-ALL), emphasizing its importance in the molecular pathogenesis of T-ALL. Here we identify the core transcriptional regulatory circuit controlled by TAL1 and its regulatory partners HEB, E2A, LMO1/2, GATA3, and RUNX1. We show that TAL1 forms a positive intercon...
متن کاملBiallelic transcriptional activation of oncogenic transcription factors in T-cell acute lymphoblastic leukemia.
Aberrant expression of transcription factor oncogenes such as HOX11, HOX11L2, TAL1/SCL, LYL1, LMO1, and LMO2 can be detected in lymphoblasts from up to 80% of patients with acute T-cell lymphoblastic leukemia (T-ALL). Transcriptional activation of these oncogenes in leukemic cells typically results from chromosomal rearrangements that place them next to highly active cis-acting transcriptional ...
متن کاملNKX3.1 is a direct TAL1 target gene that mediates proliferation of TAL1-expressing human T cell acute lymphoblastic leukemia
TAL1 (also known as SCL) is expressed in >40% of human T cell acute lymphoblastic leukemias (T-ALLs). TAL1 encodes a basic helix-loop-helix transcription factor that can interfere with the transcriptional activity of E2A and HEB during T cell leukemogenesis; however, the oncogenic pathways directly activated by TAL1 are not characterized. In this study, we show that, in human TAL1-expressing T-...
متن کاملE-box sequence and context-dependent TAL1/SCL modulation of basic helix-loop-helix protein-mediated transcriptional activation.
TAL1/SCL is a basic helix-loop-helix (bHLH) oncoprotein that is expressed in several cell lines including many hematolymphoid cells, but not in T- and B-lineage cells. The TAL1 gene was originally discovered as being transcriptionally activated by chromosomal rearrangements in T-cell acute lymphoblastic leukemia (T-ALL). Here we have shown that TAL1 and the ubiquitously expressed murine bHLH tr...
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