title: Prognostic value of cell cycle and apoptosis regulatory proteins in mismatch repair-proficient colorectal cancer: a tissue microarray-based approach.
abstract: Cell cycle and apoptosis regulatory proteins are markers of tumor progression in colorectal cancer. In a series of 1,274 mismatch repair-proficient colorectal cancers, immunohistochemical analysis of p21, p27, p53, and bcl-2 expression was performed using the tissue microarray technique. In univariate analysis, p21 expression was associated with tumor location and pN0; p27 expression with tumor location, lower tumor grade, early pT, and pN; p53 expression with tumor location; and bcl-2 with early pT and pN. Expression of p27 identified subgroups with worse prognosis in pT3 N0 and pT3 N+ patients. None of the 4 tumor markers were independent prognostic indicators of survival. The multimarker phenotypes p21/p27/p53 and p21/p27/bcl-2 were associated with survival. In mismatch repair-proficient colorectal cancer, p27 expression is associated with a better prognosis, and pT, pN, and vascular invasion are independent prognostic factors. In addition, multimarker phenotypes are useful to identify colorectal cancer subgroups with different prognoses.
authors.affiliation: Institute of Pathology, University Hospital, Basel, Switzerland.
authors.forename: Luigi
authors.initials: L
authors.lastname: Tornillo
authors.forename: Alessandro
authors.initials: A
authors.lastname: Lugli
authors.forename: Inti
authors.initials: I
authors.lastname: Zlobec
authors.forename: Niels
authors.initials: N
authors.lastname: Willi
authors.forename: Kathrin
authors.initials: K
authors.lastname: Glatz
authors.forename: Frank
authors.initials: F
authors.lastname: Lehmann
authors.forename: Hans-Peter
authors.initials: HP
authors.lastname: Spichtin
authors.forename: Robert
authors.initials: R
authors.lastname: Maurer
authors.forename: Dimitra
authors.initials: D
authors.lastname: Stoios
authors.forename: Guido
authors.initials: G
authors.lastname: Sauter
authors.forename: Luigi
authors.initials: L
authors.lastname: Terracciano
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D051017:Apoptosis Regulatory Proteins / Q000032:analysis*; D018797:Cell Cycle Proteins / Q000032:analysis*; D015179:Colorectal Neoplasms / Q000175:diagnosis* / Q000235:genetics / Q000473:pathology; D053843:DNA Mismatch Repair; D005260:Female; D006801:Humans; D007150:Immunohistochemistry; D008297:Male; D046228:Microarray Analysis; D008875:Middle Aged; D011379:Prognosis; D018809:Proliferating Cell Nuclear Antigen / Q000032:analysis; D019253:Proto-Oncogene Proteins c-bcl-2 / Q000032:analysis; D016283:Proto-Oncogene Proteins p21(ras) / Q000032:analysis; D016019:Survival Analysis; D016159:Tumor Suppressor Protein p53 / Q000032:analysis
chemical_list: D051017:Apoptosis Regulatory Proteins; D018797:Cell Cycle Proteins; D018809:Proliferating Cell Nuclear Antigen; D019253:Proto-Oncogene Proteins c-bcl-2; D016159:Tumor Suppressor Protein p53; C413374:p27 antigen; D016283:Proto-Oncogene Proteins p21(ras)