PHF6 interacts with the LMO2 complex in T-cell acute lymphoblastic leukemia
The transcriptional mediator LIM domain only 2 (LMO2) forms a large multi-protein complex together with TAL1/LYL1, HEB/E2A, LDB1 and GATA. This complex regulates transcription from the onset of hematopoietic development and during differentiation. Chromosomal rearrangements involving LMO2 and TAL1...
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| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Ferrata Storti Foundation
2025-07-01
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| Series: | Haematologica |
| Online Access: | https://haematologica.org/article/view/12167 |
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| Summary: | The transcriptional mediator LIM domain only 2 (LMO2) forms a large multi-protein complex together with TAL1/LYL1, HEB/E2A, LDB1 and GATA. This complex regulates transcription from the onset of hematopoietic development and during differentiation. Chromosomal rearrangements involving LMO2 and TAL1 are causative for T-cell lymphoblastic leukemia (TALL). We have identified Plant Homeodomain (PHD)-like Finger 6 (PHF6) as a new LMO2 interacting factor. Somatic mutations in PHF6 have been found to occur in several types of leukemia. We show that PHF6 interacts with LMO2 as a part of the TAL1, GATA2, LDB1 complex in T-ALL and binds to the DNA. These findings show that PHF6 associates with the TAL1/LMO2/LDB1/GATA2 complex and regulates genes that have a major role in blood development, such as SPI1 (PU.1).
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| ISSN: | 0390-6078 1592-8721 |