Is Kaposi's sarcoma--associated herpesvirus ubiquitous in urogenital and prostate tissues?

Important note: Information in this article was accurate in 1997. The state of the art may have changed since the publication date.

Is Kaposi's sarcoma--associated herpesvirus ubiquitous in urogenital and prostate tissues?

Blood. 1997 Mar 1;89(5):1686-9. Unique Identifier : AIDSLINE MED/97210578
Tasaka T; Said JW; Morosetti R; Park D; Verbeek W; Nagai M; Takahara J; Koeffler HP; Department of Medicine and Pathology, Cedars-Sinai Medical Center,; UCLA School of Medicine, USA.

Abstract: Controversy exists as to whether Kaposi's sarcoma-associated herpesvirus (KSHV) is more widespread than originally reported. Recently, Monini et al reported that KSHV is ubiquitous in urogenital and prostate tissues and sperm of healthy Italian adults using nested polymerase chain reaction (PCR). We have examined for the presence of KSHV in 10 normal prostates from Italian men and 10 from men from the United States, as well as 32 prostatic, 30 vulvar, 24 ovarian, 20 cervical, and 30 testicular cancer specimens from patients from the United States. None of the patients had a history of human immunodeficiency virus infection. The samples were tested by nested PCR. The sensitivity of this assay was determined by a dilution study performed by diluting KSHV DNA from the KS-1 cells (a primary effusion lymphoma cell line which is estimated to have 16 copies of KSHV per cell) in DNA from a K562 myeloid cell line. The nested PCR that we used can detect 2.4 copies of KSHV sequences on a background of K562 DNA. All the samples were negative for KSHV sequences. Therefore, we cannot confirm the finding that KSHV sequences are ubiquitous in urogenital and prostate tissues. Furthermore, because our samples were from both the United States and Italy, the discrepancy between results is unlikely to be explained by either ethnic or environmental factors. False-positive results easily occur using nested primer PCR because of contamination. Our data argue that KSHV is not widely disseminated in urogenital tissues from nonimmunosuppressed individuals.

Keywords: *Genitalia/VIROLOGY *Herpesvirus, Kaposi's Sarcoma-Associated/ISOLATION & PURIF *Prostate/VIROLOGY *Prostatic Neoplasms/VIROLOGY *Spermatozoa/VIROLOGY *Urogenital Neoplasms/VIROLOGY
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