Wynik wyszukiwania w bazie Polska Bibliografia Lekarska GBL

Zapytanie: CZOPEK
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Tytuł oryginału: The relationship between gastric cancer cells circulating in the blood and microsatellite instability positive gastric carcinomas.
Autorzy: Czopek J., Bialas M., Rudzki Z., Zazula M., Pituch-Noworolska A., Zembala M., Popiela T., Kulig J., Kołodziejczyk P., Stachura J.
Źródło: Aliment. Pharmacol. Ther. 2002: 16 suppl. 2 s.128-136, il., tab., bibliogr. 31 poz. - 9 Międzynarodowe Sympozjum nt. gastroenterologii Shimoda 26-27.04. 2001
Sygnatura GBL: 306,346

Hasła klasyfikacyjne GBL:
  • gastroenterologia
  • onkologia

    Typ dokumentu:
  • praca kliniczna
  • praca opublikowana za granicą
  • tytuł obcojęzyczny

    Wskaźnik treści:
  • ludzie
  • dorośli 19-44 r.ż.
  • dorośli 45-64 r.ż.
  • dorośli = 65 r.ż.
  • płeć męska
  • płeć żeńska

    Streszczenie angielskie: Bacground: Cancers characterized by microsatellite instability may be biologically different from their counterparts with stable microsatellite sequences. Circulating cancers cell present in blood prior to surgery may constitute an adverse prognostic finding. Aim: To correlate these two phenomena with morphological features and survival in advanced gastric cancer. Methods: We examined 76 cases of resected sporadic, advanced gastric cancer by means of routine morphology and a panel of microsatellite markers. Sixty-six cases were screened for presence of cancer cells circulating in blood prior to the surgery using combined morphological and immunocytochemical approach. Results: Twenry-one (27.6 p.c.) cases demonstrated microsatellite instability in at least one locus. Among them 11 (14.5 p.c. showed microsatellite instability in more than 30 p.c. (4/12) examined loci, and they were therefore designated as replication error positive (RER+). Circulating cancer cells were detected in 2/19 microsatellite instability and in 11/47 remaining cases (difference not significant). The survival of the microsatellite instability cases was significantly better. The presence of circulating cancer cells did not correlate with survival. Conclusion: It is possible that the microsatellite instability status, but not circulating cancer cells, constitutes a prognostic predictive factor in advanced gastric carcinoma. Confirmation of this hypothesis requires continuation of patient follow-up.

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    Tytuł oryginału: Microsatellite instability and gastrointestinal carcinoma: a never-ending story.
    Autorzy: Stachura Jerzy, Popiela Tadeusz, Czopek Jacek, Zazula Monika, Rudzki Zbigniew, Okoń Krzysztof, Kulig Jan, Białas Magdalena, Kołodziejczyk Piotr, Sińczak Anna, Papla Bolesław
    Źródło: Prz. Epidemiol. 2002: 56 supl.: Conference on molecular epidemiology in preventive medicine - achievements and new challenges s.83-93, il., bibliogr. 39 poz. - Konferencja pt. Molekularna epidemiologia w medycynie prewencyjnej - osiągnięcia i nowe wyzwania Kraków 20-22.06. 2002
    Sygnatura GBL: 301,250

    Hasła klasyfikacyjne GBL:
  • genetyka
  • gastroenterologia
  • onkologia

    Typ dokumentu:
  • praca związana ze zjazdem
  • tytuł obcojęzyczny

    Wskaźnik treści:
  • ludzie

    Streszczenie angielskie: We briefly review the current status of the research on the microsatellite status of colorectal and gastric carcinomas basing on the literature and our own studies. Investigation of microsatellite instability (MSI) is possible in archival material, and may by applied to analysis of relatively large retrospective series of cases. A specific profile of MSI-H (high) colorectal carcinomas, including right-sided location, mucinous an dsolid histology, and predominance of high-grade cases is a constant finding regardless of the geographical origin of the studied population, despide the fact that other aspects of colorectal cancer pathology differ markedly among various ethnic groups. The MSI-H tumors present several several intuively associated with bad prognosis, including the highest Ki67 proliferative fraction, but paradoxically may be associated with a more favorable outcome than MSS (stable) or MSI-L (low) cancers. The distinct status of the MSI-L colorectal cancers ("mild mutator pathway") is still unclear, but some reports, including our study, suggest that this group may present specific biologic features not necessarily placing it among MSS and MSI-H tumors. In gastric carcinoma the better prognosis linked to the MSI status emerges more and more firmly from the plethora of conflicting data. MSI-L gastric carcinomas may contain disproportionally high percentage of EBV-positive cases. The comparative aspect of the microsatellite research suffers from lack of widely acccepted standardized procedures aimed at detection of MSI, and from inconsistency in defining the MSS, MSI-L and MSI-H phenotypes among various authors.

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