SciELO - Scientific Electronic Library Online

vol.142 número2Eotaxinas en asma bronquial y poliposis nasal índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Servicios Personalizados




Links relacionados

  • No hay artículos similaresSimilares en SciELO


Gaceta médica de México

versión impresa ISSN 0016-3813


MARTINEZ-MANCILLA, Manuel et al. Molecular hemato-oncology and new specific treatment strategies for leukemia. Gac. Méd. Méx [online]. 2006, vol.142, n.2, pp.145-150. ISSN 0016-3813.

Leukemia-associated fusion genes are detected in a significant proportion of newly diagnosed cases, where genes encoding transcription factors are usually found at one of the breakpoints. Activated fusion proteins such as Pml-Rarα, have been shown to inhibit cellular differentiation by recruitment of nuclear corepressor complexes, which maintain local histone deacetylase (HDA C) in a variety of hematologic lineage-specific gene promoters. This HDAC-dependent transcriptional repression appears as a common pathway in the development of leukemia and could constitute an important target for new therapeutic agents. Alternatively, the Bcr-Abl oncoprotein shows high tyrosine kinase activity and deregulates signal transduction pathways normally involved in both apoptosis and proliferation. This aberrant activity is affected by signal transduction inhibitors (STIs), which block or prevent the oncogenic pathway. In this review, we shed some light on our understanding of both the reversible transcriptional repression controlled by HDAC and the deregulated Bcr-Abl signal transduction pathway. In addition, the administration of low molecular weight drugs for human leukemia treatment based on this knowledge brings about a significant long-term clinical remission and an acceptable risk of toxic effects that should increase the cure rate.

Palabras llave : HDAC; chimeric transcription factors; molecular therapy.

        · resumen en Español     · texto en Español     · Español ( pdf )


Creative Commons License Todo el contenido de esta revista, excepto dónde está identificado, está bajo una Licencia Creative Commons