%0 Journal Article %A Diaz-Cano, Salvador J. %A Blanes, Alfredo %D 2012 %T Influence of intratumour heterogeneity in the interpretation of marker results in phaeochromocytomas %U https://figshare.com/articles/journal_contribution/Influence_of_intratumour_heterogeneity_in_the_interpretation_of_marker_results_in_phaeochromocytomas/97657 %R 10.6084/m9.figshare.97657.v1 %2 https://ndownloader.figshare.com/files/223962 %K adrenal %K heterogeneity %K markers %K pheochromocytoma %K Molecular Biology %K Medicine %K Cell Biology %K Cancer %X

 

Krijger et al.1 try to predict the clinical behaviour of a phaeochromocytomas (PCCs) on the basis of the immunoreactivity of three markers (p53, bcl-2, and c-erbB-2). They conclude that the co-expression of p53 and bcl-2 proteins may assist that prediction. Our own preliminary results2,3 mainly agree with theirs and point towards two interrelated biological issues: firstly, the clonal evolution of neo- plasms and intratumour heterogeneity of markers; and secondly, the importance of apoptosis in tumour initiation and progression.

Krijger et al. clearly indicate the importance of p53 and bcl-2 in the pathogenesis of a subgroup of PCCs. However, the variability of marker expression and the potential relationship with kinetic features are also helpful in understanding the pathogenesis of PCC.

 

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