PMID: 7524620May 1, 1994Paper

Inactivation of the retinoblastoma gene appears to be very uncommon in myelodysplastic syndromes

British Journal of Haematology
C PreudhommeP Fenaux

Abstract

Rearrangements of the retinoblastoma (RB) gene have been reported in a few cases of myelodysplastic syndromes (MDS). In addition, low or absent expression of the RB protein is found in 20-30% of cases of acute myeloid leukaemias (AML), particularly in AML with a monocytic component (M4 or M5). We performed Southern blot analysis of the RB gene in 90 cases of MDS, including 37 cases of chronic myelomonocytic leukaemia (CMML). None of them had progressed to AML at the time of study. In 37/90 patients (including 20 CMML) Northern blot analysis, study of RB protein by immunocytochemistry on bone marrow slides, and detection of point mutations in exons 20-24 of the RB gene was also made, using single strand conformation polymorphism analysis (SSCP). No abnormal Southern profile was found in any of the 90 patients. Northern blot and immunocytochemical study of RB protein were normal in the 37 cases studied. SSCP analysis detected a point mutation in 2/37 patients tested. Direct sequencing confirmed the mutation in each case, which involved intron 21 and intron 23, respectively, and was located outside splicing sites of the neighbouring exons. These findings suggest that abnormalities of the RB gene and its expression must be very rar...Continue Reading

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Citations

Aug 16, 2001·International Journal of Hematology·Pierre Fenaux
Feb 6, 2004·Seminars in Cancer Biology·Alison M JohnRose Ann Padua
Jul 21, 1998·Leukemia Research·C Mecucci
Sep 4, 1999·Leukemia Research·Y Yoshida, G J Mufti
Jun 3, 1998·British Journal of Haematology·J E Parker, G J Mufti
Jun 10, 2000·British Journal of Haematology·S D MundleA Raza
Oct 16, 2004·International Journal of Hematology·Gurveen SaberwalSuneel D Mundle
Jul 22, 1998·Proceedings of the National Academy of Sciences of the United States of America·Y HoshikawaM Hatakeyama
Jan 9, 2015·International Journal of Molecular Sciences·Ting ZhouVivienne I Rebel
Nov 8, 2005·Cancer Genetics and Cytogenetics·Hale OrenGülersu Irken
Oct 11, 2005·Cancer Genetics and Cytogenetics·Katsuya YamamotoToshimitsu Matsui
Jan 1, 1998·Hematology·D J Culligan
May 29, 2002·Oncogene·Utz KrugH Phillip Koeffler
Jun 28, 2001·Leukemia & Lymphoma·J E Parker, G J Mufti
Aug 18, 2005·European Journal of Haematology·Sotirios G PapageorgiouTheofanis Economopoulos
May 1, 1995·Clinical and Diagnostic Laboratory Immunology·A Bagg

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