Global assessment of promoter methylation in a mouse model of cancer identifies ID4 as a putative tumor-suppressor gene in human leukemia

2005 ◽  
Vol 37 (3) ◽  
pp. 265-274 ◽  
Author(s):  
Li Yu ◽  
Chunhui Liu ◽  
Jeff Vandeusen ◽  
Brian Becknell ◽  
Zunyan Dai ◽  
...  
Blood ◽  
2006 ◽  
Vol 108 (11) ◽  
pp. 2211-2211
Author(s):  
Jianhua Yu ◽  
Li Yu ◽  
Bjoern Hackanson ◽  
Min Wei ◽  
Zachary Boyd ◽  
...  

Abstract Transforming growth factor-β-stimulated clone-22 (TSC-22) is a gene that has been shown to be silenced in brain and prostate cancer, but its function and the mechanism responsible for this silencing are unknown. We used our model of spontaneous T-natural killer (NK) acute lymphoblastic leukemia (ALL) and discovered that the TSC-22 promoter was methylated resulting in absent expression in seven of eight cases of primary NK-T ALL, but not in cells from normal mice or mice with polyclonal expansion of T and NK cells. We found that TSC-22 was undetectable or minimally expressed in mouse lymphoma cell lines YAC-1 and EL-4 and human leukemia cell lines Jurkat and RPMI 8866, but treatment with the demethylation agent 5-aza-2′-deoxycytidine restored or increased TSC-22 expression. We mapped the TSC-22 promoter and discovered a CPG island in the proximal region and determined that its methylation was responsible for the decreased gene expression. Over-expression of TSC-22 slowed in vitro cell growth and resulted in a dramatic decrease of tumor size in vivo. Finally, TSC-22 expression was found to be absent or substantially reduced in human chronic lymphocytic leukemia and acute myeloid leukemia compared to normal human tissue. Collectively, our data indicate that TSC-22 is silenced via DNA methylation within its proximal promoter, and this silencing appears to contribute to its function as a putative tumor suppressor gene in leukemia. Silencing of TSC-22 can be reversed by 5-aza-2′-deoxycytidine, recently approved by the FDA for the treatment of myelodysplastic syndrome.


2016 ◽  
Vol 36 (9) ◽  
pp. 4515-4520 ◽  
Author(s):  
INGO G.H SCHMIDT-WOLF ◽  
CHRISTOPH PLASS ◽  
JOHN C BYRD ◽  
KATHRIN FREVEL ◽  
TORSTEN PIETSCH ◽  
...  

2001 ◽  
Vol 287 (2) ◽  
pp. 427-434 ◽  
Author(s):  
Sophie Deltour ◽  
Sébastien Pinte ◽  
Cateline Guérardel ◽  
Dominique Leprince

Cell ◽  
1992 ◽  
Vol 69 (1) ◽  
pp. 111-117 ◽  
Author(s):  
Mae R. Gailani ◽  
Sherri J. Bale ◽  
David J. Leffell ◽  
John J. DiGiovanna ◽  
Gary L. Peck ◽  
...  

1996 ◽  
Vol 17 (8) ◽  
pp. 1751-1755 ◽  
Author(s):  
Dawei Li ◽  
Hua Yan ◽  
Jucheng Chen ◽  
Bruce C. Casto ◽  
Karl S. Theil ◽  
...  

2018 ◽  
Vol 32 (2) ◽  
pp. 248-258 ◽  
Author(s):  
Janine Regneri ◽  
Barbara Klotz ◽  
Brigitta Wilde ◽  
Verena A. Kottler ◽  
Michael Hausmann ◽  
...  

Author(s):  
Marco Theobald ◽  
Holger Christiansen ◽  
Anke Schmidt ◽  
Badrig Melekian ◽  
Nicole Wolkewitz ◽  
...  

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