Potential use of CXCL12/CXCR4 and sonic hedgehog pathways as therapeutic targets in medulloblastoma

Acta Oncologica
Marla Karine AmaranteMaria Angelica Ehara Watanabe

Abstract

Medulloblastoma (MB) is the most common malignant brain tumor occurring in children, and although high long-term survival rates have been reached with current therapeutic protocols, several neurological injuries are still observed among survivors. It has been shown that the development of MB is highly dependent on the microenvironment surrounding it and that the CXCL12 chemokine and its receptor, CXCR4 and the Sonic Hedgehog (SHH) pathway are crucial for cerebellar development, coordinating proliferation and migration of embryonic cells and malfunctions in these axes can lead to MB development. Indeed, the concomitant overactivation of these axes was suggested to define a new MB molecular subgroup. New molecules are being studied, aiming to inhibit either CXCR4 or the SHH pathways and have been tested in preclinical settings for the treatment of cancers. The use of these molecules could improve MB treatment and save patients from aggressive surgery, chemotherapy and radiotherapy regimens, which are responsible for severe neurological consequences. This review aims to summarize current data about the experimental inhibition of CXCR4 and SHH pathways in MB and its potential implications in treatment of this cancer.

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Citations

Nov 7, 2019·Child's Nervous System : ChNS : Official Journal of the International Society for Pediatric Neurosurgery·Kim PhippsRichard Hayward
Aug 27, 2021·Current Oncology·Terence Teixeira DuarteRui Manuel Reis
Oct 5, 2021·Expert Opinion on Therapeutic Targets·Shavali ShaikVidya Gopalakrishnan

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