Microsatellite instability of dinucleotide tandem repeat sequences is higher than trinucleotide, tetranucleotide and pentanucleotide repeat sequences in prostate cancer.

  • Authors:
    • G Perinchery
    • D Nojima
    • R Goharderakhshan
    • Y Tanaka
    • J Alonzo
    • R Dahiya
  • View Affiliations

  • Published online on: June 1, 2000     https://doi.org/10.3892/ijo.16.6.1203
  • Pages: 1203-1212
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Abstract

In order to investigate whether the change in length of simple repetitive genomic sequences (microsatellite instability) is associated with prostate cancer, we analyzed 40 prostate cancer samples with 44 microsatellite loci markers on chromosomes 1, 3, 5, 6, 8, 9, 11, 13, 16, 17 and X. DNA was extracted from normal and tumor cells of 40 microdissected cancer samples, amplified by PCR and analyzed for microsatellite instability using 44 primers for dinucleotide, trinucleotide, tetranucleotide and pentanucleotide repeat sequences. The results of this study demonstrate that 45% of the prostate cancer specimens (18 out of 40) showed microsatellite instability (MSI) at a minimum of one locus using dinucleotide repeat sequences. Two out of 40 samples (5%) showed MSI at a minimum of one locus using three different trinucleotide repeat primers (AR, SR and TBP). Ten out of 40 (25%) samples showed MSI at a minimum of one locus using five different tetranucleotide repeat primers (HPRT1, HPRTII, MYCL1, RB, REN). There were no MSI observed in samples using pentanucleotide repeat sequences. There were no MSI in benign prostatic hyperplasia samples (25 samples). These experiments suggest that the microsatellite instability of dinucleotide tandem repeat sequences is much higher than trinucleotide, tetranucleotide and pentanucleotide repeat sequences in prostate cancer. The MSI with different lengths of nucleotide repeat sequences did not correlate with the stage and grades of prostate cancer.

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Jun 2000
Volume 16 Issue 6

Print ISSN: 1019-6439
Online ISSN:1791-2423

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Spandidos Publications style
Perinchery G, Nojima D, Goharderakhshan R, Tanaka Y, Alonzo J and Dahiya R: Microsatellite instability of dinucleotide tandem repeat sequences is higher than trinucleotide, tetranucleotide and pentanucleotide repeat sequences in prostate cancer.. Int J Oncol 16: 1203-1212, 2000
APA
Perinchery, G., Nojima, D., Goharderakhshan, R., Tanaka, Y., Alonzo, J., & Dahiya, R. (2000). Microsatellite instability of dinucleotide tandem repeat sequences is higher than trinucleotide, tetranucleotide and pentanucleotide repeat sequences in prostate cancer.. International Journal of Oncology, 16, 1203-1212. https://doi.org/10.3892/ijo.16.6.1203
MLA
Perinchery, G., Nojima, D., Goharderakhshan, R., Tanaka, Y., Alonzo, J., Dahiya, R."Microsatellite instability of dinucleotide tandem repeat sequences is higher than trinucleotide, tetranucleotide and pentanucleotide repeat sequences in prostate cancer.". International Journal of Oncology 16.6 (2000): 1203-1212.
Chicago
Perinchery, G., Nojima, D., Goharderakhshan, R., Tanaka, Y., Alonzo, J., Dahiya, R."Microsatellite instability of dinucleotide tandem repeat sequences is higher than trinucleotide, tetranucleotide and pentanucleotide repeat sequences in prostate cancer.". International Journal of Oncology 16, no. 6 (2000): 1203-1212. https://doi.org/10.3892/ijo.16.6.1203