A novel retinoic/butyric hyaluronan ester for the treatment of acute promyelocytic leukemia: preliminary preclinical results

Autor: Gianni Sava, Sonia Zorzet, C. Pellizzaro, Gabriella Abolafio, Silvia Cantoni, Danila Coradini, C. Garrovo, Alberto Perbellini, Maria Grazia Daidone, Ignazio Scarlata, Maya Fedeli, Annalisa Speranza
Přispěvatelé: Coradini, D., Pellizzaro, C., Scarlata, I., Zorzet, Sonia, Garrovo, C., Abolafio, G., Speranza, A., Fedeli, M., Cantoni, S., Sava, Gianni, Daidone, M. G., Perbellini, A.
Rok vydání: 2006
Předmět:
Zdroj: Leukemia. 20:785-792
ISSN: 1476-5551
0887-6924
DOI: 10.1038/sj.leu.2404179
Popis: All-trans retinoic acid (ATRA) represents the therapy of choice for patients with acute promyelocytic leukemia (APL). However, patients often relapse due to ATRA-resistance. The molecular basis of APL alterations indicates that addition of a histone deacetylase inhibitor to ATRA may restore the sensitivity to retinoids. We explored the in vitro and in vivo effects of a novel retinoic/butyric hyaluronan ester (HBR) on a retinoic acid (RA)-sensitive human myeloid cell line, NB4, and on its RA-resistant subclone, NB4.007/6. In vitro, HBR induced growth arrest and terminal differentiation in RA-sensitive NB4 cells (as confirmed by an increased expression of CD11 family members and nitroblue tetrazolium assay), whereas it inhibited the growth of RA-resistant cells by apoptosis, paralleled by an increase in the levels of caspase 3 and 7. In vivo, HBR treatment of NB4-inoculated severe combined immunodeficient mice resulted in a statistically significant increase in survival time (P
Databáze: OpenAIRE