Coexpression and regulation of the FGF-2 and FGF antisense genes in leukemic cells

Mark Baguma-Nibasheka, Audrey W. Li, Mohammed S. Osman, Laurette Geldenhuys, Alan G. Casson, Catherine K.L. Too, Paul R. Murphy

Résultat de recherche: Articleexamen par les pairs

24 Citations (Scopus)

Résumé

Fibroblast growth factor-2 (FGF-2) is a growth and survival factor whose expression is elevated in many hematopoietic malignancies. A natural antisense RNA (FGF-AS) has been implicated in the posttranscriptional regulation of FGF-2 mRNA expression. We demonstrate for the first time that FGF sense and antisense RNAs are coordinately expressed and translated in hematopoietic cells and tissues. Cytokine stimulation of growth-arrested K562 cells elicited a rapid transient increase in FGF-AS mRNA expression followed by a slower but sustained increase in FGF-2 mRNA. This was accompanied by a marked increase in the expression and nuclear translocation of FGF-2 and the FGF-AS encoded protein, GFG/NUDT6. These findings suggest a role for both FGF-2 and GFG proteins in the cell survival and proliferation of lymphoid and myeloid tumor cells.

Langue d'origineEnglish
Pages (de-à)423-433
Nombre de pages11
JournalLeukemia Research
Volume29
Numéro de publication4
DOI
Statut de publicationPublished - avr. 2005

Note bibliographique

Funding Information:
We thank Cancer Care Nova Scotia and the Nova Scotia Health Research Foundation for post-doctoral fellowship support to M. Baguma-Nibasheka and two summer studentships to M.S. Osman. We also wish to thank Zuoyu Zheng, MD for expert immunohistochemical studies on human tissues. This study was funded by grants from the Canadian Institutes of Health and the Cancer Research Society Inc.

ASJC Scopus Subject Areas

  • Hematology
  • Oncology
  • Cancer Research

PubMed: MeSH publication types

  • Journal Article
  • Research Support, Non-U.S. Gov't

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