PUBLICAÇÕES científicas

Update on the molecular biology of gliomas: towards a pathomolecular classification of gliomas

Idoate MA [ES], Echeveste J. [ES]
Departamento de Anatomía Patológica, Clínica Universitaria, Facultad de Medicina, Universidad de Navarra, 31008 Pamplona, España.

Revisão:Revista de Neurología

Data: 16/Fev/2007

Anatomia Patológica [ES]

AIM
To review the current state of the classification and oncogenesis of gliomas, emphasizing those biologic parameters with special clinical significance.

DEVELOPMENT
In the current classification, both histologic grade and phenotype are considered the pathological features with more relevant clinical impact. These factors are an obligatory reference for both all molecular studies and a new classification. The relationship between the oligodendroglial phenotype and the loss of chromosomes 1p and 19q is a useful data in the histopathologic differential diagnosis. The new pathologic-molecular classification should take into account the current state of knowledge about the malignization pathways of gliomas, which have prognostic significance. The neoplastic biological potential should be determined in each case according with the tumoral heterogeneity.

Then, this evaluation can be based on tumoral microdissection. Although no well established prognostic molecular profiles are available, several molecular alterations are relevant such as chromosome 10 deletion, especially of the 10q23 region, mutation of PTEN and TP53 genes and amplification or mutation of EGFR. For treatment purposes, the combined deletion 1p/19q identifies the anaplastic type of oligodendrogliomas that are more responsive to chemotherapy.

CONCLUSIONS
The new pathomolecular classification of gliomas should improve the old one, especially being concerned about the oncogenesis and heterogeneity of these tumors. It is desirable that this classification has clinical applicability and can integrate new molecular findings with some known histological features with prognostic value.

CITAÇÃO DO ARTIGO   Rev Neurol. 2007 Feb 16-28;44(4):217-24

talvezlhe interesse

QUE TECNOLOGIA UTILIZAMOS? 

A Clínica é o hospital privado com maiores recursos tecnológicos de Espanha, tudo num único centro.

Imagen de un PET, tecnología de vanguardia en la Clínica Universidad de Navarra

OS NOSSOS
PROFISSIONAIS

Os profissionais da Clínica realizam um trabalho contínuo de investigação e formação, sempre em benefício do paciente.

Imagen profesionales de la Clínica Universidad de Navarra

RAZÕES PARA VIR
À CLÍNICA

Conheça porque é que somos diferentes em relação a outros centros sanitários. Qualidade, rapidez, comodidade e resultados.

Imagen del edificio de la Clínica Universidad de Navarra