PMID- 9683778 OWN - NLM STAT- MEDLINE DCOM- 19980904 LR - 20190516 IS - 1019-6439 (Print) IS - 1019-6439 (Linking) VI - 13 IP - 3 DP - 1998 Sep TI - Effect of cyclin D1 and associated proteins on proliferation of esophageal squamous cell carcinoma. PG - 455-60 AB - Cyclin D1, which functionally competes with the tumor suppressor genes retinoblastoma (Rb) and p16INK4, is widely recognized as an oncogene. P27KIP1, which inhibits the cyclin D1-CDK4 complex, is also a putative tumor suppressor gene. In order to evaluate the regulatory interaction of these molecules, a retrospective series of tissues from 66 patients with esophageal squamous cell carcinoma was evaluated immunohistochemically for the expressions of cyclin D1, Rb, p16INK4 and p27KIP1. The expressions of these molecules were correlated with the proliferation cell nuclear antigen (PCNA) index as an indicator of cell proliferation. Cyclin D1 was overexpressed (++) in 28 cases (42%), Rb was lost (-) in 19 cases (24%), p16INK4 was lost (-) in 37 cases (56%) and p27KIP1 was lost (-) in 27 cases (41%). Taken together, disorder of at least one or more of these molecules was observed in 62 cases (92%). Expression of cyclin D1 and p16INK4 was negatively correlated (p<0.03), while expression of cyclin D1 and p27KIP1 was positively correlated (p<0.0004). We found strong overall correlation between expression of cyclin D1 and the PCNA index (p<0.0001), however expression of p16INK4 and p27KIP1 was significantly correlated with the PCNA index in tumors devoid of cyclin D1 overexpression (p<0.03 and p<0.02 respectively). Thus, it was found that cyclin D1 plays a major role and closely related to abnormal cell proliferation in esophageal cancer, however assessment of p16INK4 and p27KIP1 status, particularly in tumors devoid of cyclin D1 overexpression, is necessary for comprehensive evaluation of cancer cell proliferation. Furthermore, expression of cyclin D1 is correlated with that of p16INK4 and p27KIP1 in squamous cell carcinoma of the esophagus. FAU - Shamma, A AU - Shamma A AD - Department of Surgery II, Osaka University, Medical School, Suita, Osaka 565, Japan. FAU - Doki, Y AU - Doki Y FAU - Shiozaki, H AU - Shiozaki H FAU - Tsujinaka, T AU - Tsujinaka T FAU - Inoue, M AU - Inoue M FAU - Yano, M AU - Yano M FAU - Kimura, Y AU - Kimura Y FAU - Yamamoto, M AU - Yamamoto M FAU - Monden, M AU - Monden M LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Greece TA - Int J Oncol JT - International journal of oncology JID - 9306042 RN - 0 (Cell Cycle Proteins) RN - 0 (Cyclin-Dependent Kinase Inhibitor p16) RN - 0 (Microtubule-Associated Proteins) RN - 0 (Neoplasm Proteins) RN - 0 (Proliferating Cell Nuclear Antigen) RN - 0 (Retinoblastoma Protein) RN - 0 (Tumor Suppressor Proteins) RN - 136601-57-5 (Cyclin D1) RN - 147604-94-2 (Cyclin-Dependent Kinase Inhibitor p27) SB - IM MH - Aged MH - Aged, 80 and over MH - Carcinoma, Squamous Cell/*metabolism/*pathology MH - Cell Cycle Proteins/biosynthesis/*physiology MH - Cell Division/physiology MH - Cyclin D1/biosynthesis/*physiology MH - Cyclin-Dependent Kinase Inhibitor p16/biosynthesis/physiology MH - Cyclin-Dependent Kinase Inhibitor p27 MH - Esophageal Neoplasms/*metabolism/*pathology MH - Female MH - Humans MH - Male MH - Microtubule-Associated Proteins/biosynthesis/physiology MH - Middle Aged MH - Neoplasm Proteins/biosynthesis/*physiology MH - Proliferating Cell Nuclear Antigen/analysis MH - Retinoblastoma Protein/biosynthesis/physiology MH - Retrospective Studies MH - *Tumor Suppressor Proteins EDAT- 1998/07/31 00:00 MHDA- 1998/07/31 00:01 CRDT- 1998/07/31 00:00 PHST- 1998/07/31 00:00 [pubmed] PHST- 1998/07/31 00:01 [medline] PHST- 1998/07/31 00:00 [entrez] AID - 10.3892/ijo.13.3.455 [doi] PST - ppublish SO - Int J Oncol. 1998 Sep;13(3):455-60. doi: 10.3892/ijo.13.3.455.