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PMID:8084613
| Citation |
Cotter, FE, Johnson, P, Hall, P, Pocock, C, al Mahdi, N, Cowell, JK and Morgan, G (1994) Antisense oligonucleotides suppress B-cell lymphoma growth in a SCID-hu mouse model. Oncogene 9:3049-55 |
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| Abstract |
The t(14;18) translocation is found in the majority follicular lymphomas and some high grade B-cell lymphomas. This is results in deregulation of the BCL-2 gene and appears to play a role in oncogenesis. Various numbers of cells from a cell line derived spontaneously from a patient with B-cell lymphoma bearing the t(14;18) translocation and negative for the Epstein-Barr virus (EBV) were injected by IP, IV, and SC routes into SCID mice. The mice developed lymphoma bearing the t(14;18) translocation with as few as 5 x 10(6) cells within 28 days. This was determined by histological examination. The higher the cell inoculation the more rapidly the lymphoma developed. Engraftment of the tumour cells was determined by PCR for the t(14;18) breakpoint region on peripheral blood samples and could be detected prior to development of overt lymphoma. Having established a lymphoma model the cells were treated with antisense oligonucleotides to the first open reading frame of the BCL-2 gene prior to inoculation of the SCID mice. Control treatments with sense and nonsense oligonucleotides was also performed. At 28 days the sense, nonsense and untreated cell SCID mice had developed lymphoma, however, the antisense treated group failed to develop lymphoma. The findings demonstrate the modelling of B-cell lymphoma bearing the t(14;18) translocation and the ability to modify the lymphoma process with the use of antisense oligonucleotides to the BCL-2 gene. Reduction of the BCL2 protein suppresses the oncogenic potential of these lymphoma cells confirming that it plays an essential role in the development of malignancy. |
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| Keywords |
Animals; Base Sequence; Cell Division/genetics; Cell Line; Chromosomes, Human, Pair 14; Chromosomes, Human, Pair 18; Disease Models, Animal; Humans; Lymphoma, B-Cell/genetics; Lymphoma, B-Cell/pathology; Mice; Mice, SCID; Molecular Sequence Data; Oligonucleotides, Antisense/genetics; Oligonucleotides, Antisense/pharmacology; Proto-Oncogene Proteins/genetics; Proto-Oncogene Proteins c-bcl-2; Translocation, Genetic; Tumor Cells, Cultured |
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Significance
Annotations
| Gene product | Qualifier | GO ID | GO term name | Evidence Code | with/from | Aspect | Notes | Status |
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