Journal
CRITICAL REVIEWS IN ONCOLOGY HEMATOLOGY
Volume 100, Issue -, Pages 190-208Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.critrevonc.2016.01.022
Keywords
Phaeochromocytoma; Paraganglioma; Mutations; Immunohistochemistry; Sequencing
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Funding
- Higher Degree Research scholarship
- Griffith University
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Genetic mutations of phaeochromocytoma (PCC) and paraganglioma (PGL) are mainly classified into two major clusters. Cluster 1 mutations are involved with the pseudo hypoxic pathway and comprised of PHD2, VHL, SDHx, IDH, HIF2A, MDH2 and FH mutated PCC/PGL. Cluster 2 mutations are associated with abnormal activation of kinase signalling pathways and included mutations of RET, NF1, KIF1B beta, MAX and TMEM127. In addition, VHL, SDHx (cluster 1 genes) and RET, NF1 (cluster 2 genes) germline mutations are involved in the neuronal precursor cell pathway in the pathogeneses of PCC/PGL. Also, GDNF, H-ras, K-ras, GNAS, CDKN2A (p16), p53, BAP1, BRCA1&2, ATRX and KMT2D mutations have roles in the development of PCC/PGLs. Overall, known genetic mutations account for the pathogenesis of approximately 60% of PCC/PGLs. Genetic mutations, pathological parameters and biochemical markers are used for better prediction of the outcome of patients with this group of tumours. Immunohistochemistry and gene sequencing can ensure a more effective detection, prediction of malignant potential and treatment of PCC/PCLs. (C) 2016 Elsevier Ireland Ltd. All rights reserved.
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