The platelet-derived growth factor alpha-receptor 1.5 kb transcript: target for molecular detection of testicular germ cell tumours of adolescents and adults

J W Oosterhuis, A J Gillis, C E van Roozendaal, E J van Zoelen, L H Looijenga

Onderzoeksoutput: Bijdrage aan tijdschriftArtikelpeer review

Samenvatting

An accurate and relatively simple method to detect testicular germ cell tumours of adolescents and adults (TGCTs) could be useful for early detection and may help to avoid unnecessary orchidectomies. We report a highly sensitive reverse-transcription polymerase chain reaction assay for the 1.5 kb transcript of the platelet-derived growth factor-alpha receptor for molecular diagnosis of TGCTs. As a simulation of the clinical application of the assay the approach was applied on through-cut-biopsies from orchidectomy specimens. In a series of 31 specimens, the 1.5 kb transcript was detected in all samples containing either carcinoma in situ, or an invasive TGCT, with mature teratoma as only exception. No expression was detected in normal parenchyma. On the basis of the through-cut-biopsies the assay shows a sensitivity of 0.87 and a specificity of 1.00. The positive and negative predictive values of the test are 1.00 and 1.00. For carcinoma in situ alone these values are 0.86, 1.00, 1.00, and 0.80, respectively. The figures at least equal the results obtained with the most sensitive morphological/enzyme-histochemical study of duplicate biopsies. We conclude that the 1.5 kb transcript of the platelet-derived growth factor-alpha receptor is a useful molecular marker for TGCTs, and therefore of interest in a clinical setting.

Originele taal-2Engels
Pagina's (van-tot)207-13; discussion 213-5
TijdschriftAPMIS : acta pathologica, microbiologica, et immunologica Scandinavica
Volume106
Nummer van het tijdschrift1
DOI's
StatusGepubliceerd - jan. 1998
Extern gepubliceerdJa

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