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Deletion at chromosome arms 6q16–22 and 10q22.3–23.1 associated with initiation of prostate cancer

Prostate Cancer and Prostatic Diseases volume 11, pages 357–361 (2008)Cite this article

Abstract

Loss of heterozygosity (LOH) at 6q16–22 and 10q22.3–23.1 is common chromosomal alteration in advanced prostate cancer and suggests that one or more tumor suppressor genes may lie within these chromosome arms. However, the genetic changes in early stage prostate cancer and premalignant lesions remain to be investigated. We used 11 informative microsatellite markers at 6q16–22 and 10q22.3–23.1 in Japanese patients to compare the frequency of LOH in 53 lesions of high-grade prostatic intraepithelial neoplasia (HGPIN), 38 cases (38 lesions) of incidental prostate cancer (IPC) and 107 cases (168 lesions) of clinical prostate cancer (CPC). The frequency of LOH at 6q16–22 with at least one marker was 38 and 49% in IPC and CPC cases, respectively. Similarly, allelic loss at 10q22.3–23.1 was present in 35 and 39% of IPC and CPC, respectively. High-frequency LOH was detected in both the clinically insignificant and significant prostate cancers at 6q16–22 and 10q22.3–23.1 (P>0.05). However, no allelic loss was detected in any markers at the same regions in HGPIN (0%), which is usually considered a premalignant lesion to prostate cancer. Deletions of both the chromosome regions, 6q16–22 and 10q22.3–23.1, are more likely important events in the initiation and/or promotion of prostate cancer.

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  1. Department of Pathology, The Jikei University School of Medicine, Tokyo, Japan

    T Lu & H Hano

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Correspondence to T Lu.

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Lu, T., Hano, H. Deletion at chromosome arms 6q16–22 and 10q22.3–23.1 associated with initiation of prostate cancer. Prostate Cancer Prostatic Dis 11, 357–361 (2008). https://doi.org/10.1038/pcan.2008.4

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