Pathobiology 2008;75:364–372

Immunohistochemical Analysis of Cell Cycle-Related Molecules in Gastric Carcinoma: Prognostic Significance, Correlation with Clinicopathological Parameters, Proliferation and Apoptosis

Lee K.-H.a · Lee H.E.f · Cho S.J.a · Cho Y.J.a · Lee H.S.f · Kim J.H.d · Nam S.Y.e · Chang M.S.b · Kim W.H.b · Lee B.L.a
aDepartment of Anatomy, bDepartment of Pathology and cIschemic/Hypoxic Disease Institute, Seoul National University College of Medicine, dDepartment of Pathology, Asan Medical Center, University of Ulsan College of Medicine, eDivision of Radiation Effect Research, Radiation Health Research Institute, Korea Hydro and Nuclear Power Co., Seoul, and fDepartment of Pathology, Seoul National University Bundang Hospital, Seongnam, Korea
email Corresponding Author

 goto top of outline Key Words

  • Cell cycle regulator
  • Gastric cancer
  • Tissue array
  • Immunohistochemistry
  • Proliferation
  • Apoptosis

 goto top of outline Abstract

Objective: We aimed to investigate the biological significance of cell cycle regulators in gastric carcinoma. Methods: Immunohistochemistry and TUNEL staining were performed on tissue array slides containing 293 gastric carcinoma specimens. The relationship between the protein expression of each of the cell cycle regulators and prognosis, clinicopathological features, proliferation, or apoptosis was evaluated. Results: The nuclear immunoreactivity for cyclin D1, cyclin E, p21, and p27 was observed in 22, 14, 31 and 27% of cases, respectively. The expression of cyclin D1, p21, or p27 positively correlated with early pTNM stages, tumor cell proliferation (represented by Ki-67 labeling) and good prognosis, whereas it inversely correlated with the lymph node metastasis (p < 0.05). On the other hand, p27 expression inversely correlated with the apoptosis index represented by TUNEL staining (p < 0.001). In addition, the expression of cyclin D1 positively correlated with that of p21 or p27 (p < 0.05). Conclusions: Our results showed that the expression of cyclin D1, p21 and p27, alone or in combination, are early events in gastric tumorigenesis and may serve as a candidate molecular marker for the early gastric carcinoma.

Copyright © 2008 S. Karger AG, Basel

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 goto top of outline Author Contacts

Dr. Byung Lan Lee
Department of Anatomy, Seoul National University College of Medicine
28 Yeongon-dong, Chongno-gu
Seoul 110-799 (Korea)
Tel. +82 2 740 8206, Fax +82 2 745 9528, E-Mail

 goto top of outline Article Information

K.-H. Lee and H.E. Lee contributed equally to this work.

Received: May 6, 2008
Accepted after revision: August 18, 2008
Published online: December 15, 2008
Number of Print Pages : 9
Number of Figures : 3, Number of Tables : 3, Number of References : 36

 goto top of outline Publication Details

Pathobiology (Exploring the basis of disease)

Vol. 75, No. 6, Year 2008 (Cover Date: December 2008)

Journal Editor: Borisch B. (Geneva), Yasui W. (Hiroshima)
ISSN: 1015-2008 (Print), eISSN: 1423-0291 (Online)

For additional information:

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