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Published in: Cancer Cell International 1/2013

Open Access 01-12-2013 | Primary research

HOXB1 restored expression promotes apoptosis and differentiation in the HL60 leukemic cell line

Authors: Marina Petrini, Federica Felicetti, Lisabianca Bottero, Maria Cristina Errico, Ornella Morsilli, Alessandra Boe, Alessandra De Feo, Alessandra Carè

Published in: Cancer Cell International | Issue 1/2013

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Abstract

Background

Homeobox (HOX) genes deregulation has been largely implicated in the development of human leukemia. Among the HOXB cluster, HOXB1 was silent in a number of analyzed acute myeloid leukemia (AML) primary cells and cell lines, whereas it was expressed in normal terminally differentiated peripheral blood cells.

Methods

We evaluated the biological effects and the transcriptome changes determined by the retroviral transduction of HOXB1 in the human promyelocytic cell line HL60.

Results

Our results suggest that the enforced expression of HOXB1 reduces cell growth proliferation, inducing apoptosis and cell differentiation along the monocytic and granulocytic lineages. Accordingly, gene expression analysis showed the HOXB1-dependent down-regulation of some tumor promoting genes, paralleled by the up-regulation of apoptosis- and differentiation-related genes, thus supporting a tumor suppressor role for HOXB1 in AML. Finally, we indicated HOXB1 promoter hypermethylation as a mechanism responsible for HOXB1 silencing.

Conclusions

We propose HOXB1 as an additional member of the HOX family with tumour suppressor properties suggesting a HOXB1/ATRA combination as a possible future therapeutic strategy in AML.
Appendix
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Metadata
Title
HOXB1 restored expression promotes apoptosis and differentiation in the HL60 leukemic cell line
Authors
Marina Petrini
Federica Felicetti
Lisabianca Bottero
Maria Cristina Errico
Ornella Morsilli
Alessandra Boe
Alessandra De Feo
Alessandra Carè
Publication date
01-12-2013
Publisher
BioMed Central
Published in
Cancer Cell International / Issue 1/2013
Electronic ISSN: 1475-2867
DOI
https://doi.org/10.1186/1475-2867-13-101

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Webinar | 19-02-2024 | 17:30 (CET)

Keynote webinar | Spotlight on antibody–drug conjugates in cancer

Antibody–drug conjugates (ADCs) are novel agents that have shown promise across multiple tumor types. Explore the current landscape of ADCs in breast and lung cancer with our experts, and gain insights into the mechanism of action, key clinical trials data, existing challenges, and future directions.

Dr. Véronique Diéras
Prof. Fabrice Barlesi
Developed by: Springer Medicine