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Tytuł oryginału: Expression of class III á-tubulin in neuroendocrine tumours of gastrointestinal tract.
Autorzy: Jirasek Tomas, Mandys Vaclav, Viklicky Vladimir
Źródło: Folia Histochem. Cytobiol. 2002: 40 (3) s.305-309, il., tab., bibliogr. 20 poz.
Sygnatura GBL: 304,846

Hasła klasyfikacyjne GBL:
  • gastroenterologia
  • onkologia

    Typ dokumentu:
  • praca kliniczna
  • tytuł obcojęzyczny

    Wskaźnik treści:
  • ludzie

    Streszczenie angielskie: Class III á-tubulin is regarded as a specific marker for the cells of neuronal origin as well as for the tumours originating from these cells. Its expression is considered one of the earliest events that appear in the cells revealing neuronal differentiation. Using monoclonal antibody TU-20 in an immunohistochemical analysis, we studied the expression of class III á-tubulin in gastrointestinal carcinoid tumours. Paraffin-embedded, formalin-fixed tissue sections from 49 tumour samples obtained from following locations: stomach (4 cases), small intestine (8 cases), appendix (18 cases), rectum (3 cases), pancreas (5 cases), liver metastases (7 cases) and lymph node metastases (4 cases) were used in the study. In 41 of the 49 tumour samples (83.7 p.c.), positive staining for class III á-tubulin was detected, while 8 tumour samples (16.3 p.c.) were negative. Expression of class III á-tubulin was prominent in all three rectal carcinoids and in three atypical caracinoids located in small intestine. Pancreatic neuroendocrine tumours revealed either weak immunostaining (2 cases), or were negative for this marker (3 cases). The intensity of class III á-tubulin immunolabelling was not related to the degree of tumour differentiation. The results of this study suggest that class III á-tubulin could be a perspective marker for gastrointestinal neuroendocrine tumours. Moreover, the differences in its expression could also elucidate some aspects of histogenetic relationships of neuroencodcrine tumours of gastrointestinal tract.

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