PURPOSE AND METHODS: The prognostic significance of cell proliferation, estimated as cytometric S-phase fraction (SPF), was investigated in node-negative breast cancer patients with small tumors (T1, NO). The 219 stage I patients originated from two series and were diagnosed either from 1978 to 1981 or from 1981 to 1985. The tumors were analyzed for estrogen receptors (ERs) by isoelectric focusing and for cellular DNA content by static cytofluorometry or flow cytometry. RESULTS: A high SPF correlated with the absence of ERs and abnormal DNA content, and was less often found in tumors smaller than 11 mm compared with those with a diameter between 11 and 20 mm. Among the variables age, tumor size, DNA ploidy, ER status, and SPF, only SPF showed a significant association with distant recurrence and breast cancer survival in systemically untreated patients. The relative recurrence rate for patients with an SPF of 10% or greater was three times that for patients with lower SPFs. Estimated 8-year breast cancer survival rates for the same groups were 72% and 91%, respectively. CONCLUSION: This study suggests that cytometric SPF has prognostic significance in stage I breast carcinoma.
PURPOSE AND METHODS: The prognostic significance of cell proliferation, estimated as cytometric S-phase fraction (SPF), was investigated in node-negative breast cancerpatients with small tumors (T1, NO). The 219 stage I patients originated from two series and were diagnosed either from 1978 to 1981 or from 1981 to 1985. The tumors were analyzed for estrogen receptors (ERs) by isoelectric focusing and for cellular DNA content by static cytofluorometry or flow cytometry. RESULTS: A high SPF correlated with the absence of ERs and abnormal DNA content, and was less often found in tumors smaller than 11 mm compared with those with a diameter between 11 and 20 mm. Among the variables age, tumor size, DNA ploidy, ER status, and SPF, only SPF showed a significant association with distant recurrence and breast cancer survival in systemically untreated patients. The relative recurrence rate for patients with an SPF of 10% or greater was three times that for patients with lower SPFs. Estimated 8-year breast cancer survival rates for the same groups were 72% and 91%, respectively. CONCLUSION: This study suggests that cytometric SPF has prognostic significance in stage I breast carcinoma.
Authors: F Barzanti; M Dal Susino; A Volpi; D Amadori; A Riccobon; E Scarpi; L Medri; L Bernardi; S Naldi; M Aldi; M Gaudio; W Zoli Journal: Cell Prolif Date: 2000-04 Impact factor: 6.831
Authors: P Bevilacqua; P Verderio; M Barbareschi; E Bonoldi; P Boracchi; P Dalla Palma; G Gasparini Journal: Breast Cancer Res Treat Date: 1996 Impact factor: 4.872
Authors: O Stål; L Skoog; L E Rutqvist; J M Carstensen; S Wingren; S Sullivan; A C Andersson; M Dufmats; B Nordenskjöld Journal: Br J Cancer Date: 1994-12 Impact factor: 7.640
Authors: P A Ellis; A Makris; S A Burton; J Titley; M G Ormerod; J Salter; T J Powles; I E Smith; M Dowsett Journal: Br J Cancer Date: 1996-03 Impact factor: 7.640