[Tissue microarrays. Value of immunohistochemical proliferation markers for serial investigations of head and neck cancer].

Research paper by S S Peters, M M Hambek, W W Gstöttner, R R Knecht

Indexed on: 13 May '04Published on: 13 May '04Published in: HNO


Tissue microarrays (TMAs) are still seldom used in oncological research, especially that involving otorhinolaryngology, although the benefit of this method has often been reported.We prepared ten different tumor probes from patients with head and neck cancer for immunohistochemistry and performed ki67 and proliferating cell nuclear antigen (PCNA) staining on the usual paraffin sections as well as on TMAs consisting of the same tissue.We conclude that investigation by means of TMA makes oncological research, and especially the screening of tumor probes, much more efficient since a high correlation ( r>0.7, P<0.0001) between both methods was found.