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Titolo:
PROLIFERATING CELL NUCLEAR ANTIGEN (PCNA) IN CEREBRAL CAVERNOMAS - ANIMMUNOCYTOCHEMICAL STUDY OF 42 CASES
Autore:
NOTELET L; HOUTTEVILLE JP; KHOURY S; LECHEVALIER B; CHAPON F;
Indirizzi:
CHRU CAEN,NEUROPATHOL LAB,AVE COTE NACRE F-14033 CAEN FRANCE CHRU CAEN,NEUROPATHOL LAB F-14033 CAEN FRANCE CHRU CAEN,DEPT NEUROSURG F-14033 CAEN FRANCE
Titolo Testata:
Surgical neurology
fascicolo: 4, volume: 47, anno: 1997,
pagine: 364 - 370
SICI:
0090-3019(1997)47:4<364:PCNA(I>2.0.ZU;2-L
Fonte:
ISI
Lingua:
ENG
Soggetto:
CENTRAL-NERVOUS-SYSTEM; NATURAL-HISTORY; MALFORMATIONS; EXPRESSION; ANGIOMAS; MANIFESTATIONS; NEOPLASMS; MARKERS; GROWTH; MRI;
Keywords:
CEREBRAL CAVERNOUS ANGIOMAS; PROLIFERATING CELL NUCLEAR ANTIGEN (PCNA); ENDOTHELIAL CELLS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
34
Recensione:
Indirizzi per estratti:
Citazione:
L. Notelet et al., "PROLIFERATING CELL NUCLEAR ANTIGEN (PCNA) IN CEREBRAL CAVERNOMAS - ANIMMUNOCYTOCHEMICAL STUDY OF 42 CASES", Surgical neurology, 47(4), 1997, pp. 364-370

Abstract

BACKGROUND The natural history and growth mechanisms of cerebral cavernous angiomas are unclear, which makes them difficult to manage. We attempted to evaluate the evolutive potential of cavernomas by studyingthe proliferative capacity of cells. METHODS We studied 42 histologically verified cavernomas with monoclonal antibody to proliferating cell nuclear antigen (PCNA), an accessory protein of the cell cycle, the rate of which is increased in proliferative cells. The PCNA Labeling Index (PCNA LI) was calculated in each case, and the results were compared with histologic findings (lacy areas, thick walls, thrombi, hemosiderin) and clinical features (epilepsy, hematomas, pseudotumorous signs). RESULTS Thirty-six of 42 cases (85.7%) revealed stained cells. PCNA LI ranged from 1 to 48% (mean: 23.39%). Statistical analyses showed a positive correlation between PCNA LI and the extent of lacy areas (p< 0.05). On the contrary, collagenous-walled and thrombotic areas rarely showed positively stained cells. We found no relationship between PCNA LI and clinical features. CONCLUSIONS A proliferative capacity ofendothelial cells does exist in some areas of cavernomas and may explain, besides thromboses and hemhorrages, the growth and even de novo appearance of these lesions. Occurrence of fragile blood cavities, thickening of others, and changes in blood flow may influence the evolution of lesions, Our results suggest that in cavernomas, some areas may undergo specific changes, which makes them more dynamic lesions than previously thought. (C) 1997 by Elsevier Science Inc.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 23/09/20 alle ore 14:31:53