Immunohistochemical localization of chromogranins A and B and secretogranin II in normal, hyperplastic and neoplastic prostate
1994; Wiley; Volume: 24; Issue: 3 Linguagem: Inglês
10.1111/j.1365-2559.1994.tb00515.x
ISSN1365-2559
AutoresKurt Werner Schmid, B. Helpap, Martin Tötsch, Rudolf Kirchmair, Barbara Dockhorn‐Dworniczak, W. Böcker, Reiner Fischer‐Colbrie,
Tópico(s)Neuroendocrine Tumor Research Advances
ResumoRoutinely processed normal, hyperplastic and neoplastic prostatic tissue was immunohistochemically investigated with antibodies against chromogranin A and B and secretogranin II. In normal and hyperplastic prostates all three peptides were immunolocalized in scattered neuroendocrine cells situated within the glandular epithelium. In 17 prostatic carcinomas with pronounced neuroendocrine differentiation and in a case of prostatic carcinoid, chromogranin B was the major component whereas chromogranin A and secretogranin II were virtually absent in poorly differentiated (grade III) tumours. Neuroendocrine differentiation in prostatic cancer is most likely to be associated with a poor clinical outcome; thus, chromogranin B appears to be a useful marker in the histopathological diagnosis of these neoplasms.
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