A redundant oncogenic potential of the retinoic receptor (RAR) α, β and γ isoforms in acute promyelocytic leukemia

A. Marinelli, D. Bossi, P. G. Pelicci, S. Minucci

Research output: Contribution to journalArticle


Alterations of the retinoic acid receptor (RAR)α locus are found in 100% of acute promyelocytic leukemia patients, where chromosomal translocations generate the promyelocytic leukemia (PML)-RARα chimeric protein. Here, we have investigated the biological properties of the other RAR isoforms (RARβ and RARγ), through the generation and characterization of artificial PML-RAR'x' fusion proteins. Surprisingly, we found that all of the RAR isoforms share an identical oncogenic potential in vitro, thus implying that the selection of the RARα locus in leukemia patients must occur - rather than through functional differences among the various RAR isoforms - as the consequence of the nuclear architecture of the different RAR loci.

Original languageEnglish
Pages (from-to)647-650
Number of pages4
Issue number4
Publication statusPublished - Apr 2007


ASJC Scopus subject areas

  • Hematology
  • Cancer Research

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