Open AccessExpression of Ki-67 in Low-Grade and High-Grade Astrocytomas
Author(s) -
Cléciton Braga Tavares,
Francisca das Chagas Sheyla Almeida Gomes Braga,
Emerson Brandão Sousa,
José Nazareno Pearce de Oliveira Brito
Publication year - 2018
Publication title -
jornal brasileiro de neurocirurgia
Language(s) - English
Resource type - Journals
eISSN - 2446-6786
pISSN - 0103-5118
DOI - 10.22290/jbnc.v27i3.1563
Subject(s) - inclusion and exclusion criteria , medicine , medline , association (psychology) , oncology , pathology , psychology , biology , alternative medicine , biochemistry , psychotherapist
Objective. This review aims to carry out a survey on the importance of Ki67 in the astrocytomas study. Methods. A search in the electronic database of Medline via PubMed and using MESH terms was carried out. Articles were published between January 2005 and December 2015. All studies were analyzed by two experienced researchers, using inclusion and exclusion criteria for the selection of studies. Results. Five studies showed an association between cell proliferation and survival time. Four articles mentioned as cut-off point for survival a Ki67 of 10% and a fifth article a Ki67 of 14.3. A study showed an association between therapeutic failure and Ki67. Four studies have made the association between Ki67 and World Health Organization classification. Conclusion. High levels of Ki67 are associated to high grade astrocytomas and lower survival time.