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Titolo:
VARIABILITY OF IMMUNOHISTOCHEMICAL REACTIVITY ON STORED PARAFFIN SLIDES
Autore:
BERTHEAU P; CAZALSHATEM D; MEIGNIN V; DEROQUANCOURT A; VEROLA O; LESOURD A; SENE C; BROCHERIOU C; JANIN A;
Indirizzi:
HOP ST LOUIS,SERV ANAT PATHOL,PATHOL LAB,1 AVE CLAUDE VELLEFAUX F-75010 PARIS FRANCE
Titolo Testata:
Journal of Clinical Pathology
fascicolo: 5, volume: 51, anno: 1998,
pagine: 370 - 374
SICI:
0021-9746(1998)51:5<370:VOIROS>2.0.ZU;2-#
Fonte:
ISI
Lingua:
ENG
Soggetto:
P53 ANTIGEN LOSS; BREAST-CANCER; INTENSITY;
Keywords:
UNSTAINED SLIDES; STORED SLIDES; IMMUNOHISTOCHEMISTRY; PARAFFIN SLIDES;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
7
Recensione:
Indirizzi per estratti:
Citazione:
P. Bertheau et al., "VARIABILITY OF IMMUNOHISTOCHEMICAL REACTIVITY ON STORED PARAFFIN SLIDES", Journal of Clinical Pathology, 51(5), 1998, pp. 370-374

Abstract

Aims-To investigate the effects of slide storage on immunohistochemical staining, since recent reports have indicated that storage of unstained paraffin slides far up to 12 weeks may lead to false negative immunostaining of tumour markers. Methods-11 antibodies (anti-cytokeratin, epithelial membrane antigen (EMA ), vimentin, smooth muscle actin, PS100, chromogranin, CD45, CD20, CD3, CD30, and oestrogen receptor (OR)) were tested on unstained paraffin slides of breast carcinomas, lymphomas, and neuroendocrine tumours that had been stored for three to 10 years. All the paraffin blocks were recut less than one week before immunostaining. Immunostainings of years old slides were compared with those of recent slides in at least five cases for each antibody. For three antibodies (anti-chromogranin, anti-CD3, and anti-OR) we also tested one year old and three months old slides. Results-Intensity of staining on years old slides was strikingly reduced for chromogranin and CD3 in several cases and was slightly stranger for vimentin. In some cases a significant decrease of OR positivity was observed after three months storage, and a complete loss of OR immunostaining after 12 months, No significant difference was noted with the other antibodies. Conclusions-Immunohistochemical detection of some antigens located either in the nucleus, in the cytoplasm, or on the cytoplasmic membrane couldbe impaired by storage of paraffin slides as short a time as three months. One should be cautious of doing retrospective immunohistochemical studies on stored unstained slides.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 03/12/20 alle ore 16:08:26