Abstract:
:The tumor suppressor genes p15INK4B and p16INK4A, located in the chromosomal region 9p21, are frequently inactivated by homo- or hemizygous deletions, point mutation or promotor methylation in various types of cancer. No commercial probe is yet available that allows the detection of such deletions by FISH. Long distance (LD)-PCR was successfully used to generate a FISH probe, that covers a sequence stretch of 11.68 kb, located between the tumor suppressor genes p15 and p16. The LD-PCR amplicon was cloned and biotinylated by DOP-PCR (degenerated oligonucleotide primed-PCR) or nick translation. The FISH probe was hybridized on different samples of 16 patients with leukemia (3 T-ALL, 13 CML) and normal controls. Loss of at least one FISH-signal was found in 2/3 (67%) of the T-ALL- and 2/13 (15%) of the CML-cases. The new FISH probe presented here was proven to be advantageous for the detection of deletions in chromosomal region 9p21, especially between p15 and p16.
journal_name
Int J Mol Medjournal_title
International journal of molecular medicineauthors
Bleichert A,Fiedler W,Claussen U,Ernst G,Loncarevic IF,Heller A,Liehr T,Kunert C,von Eggeling Fdoi
10.3892/ijmm.7.6.591subject
Has Abstractpub_date
2001-06-01 00:00:00pages
591-5issue
6eissn
1107-3756issn
1791-244Xjournal_volume
7pub_type
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