miR-124 and VAMP3 Act Antagonistically in Human Neuroblastoma.

Xiaoxiao Zhang, Chengyong Yang, Zhen Meng, Huanhuan Zhong, Xutian Hou, Fenfen Wang, Yiping Lu, Jingjing Guo, Yan Zeng

International journal of molecular sciences 2023 Oct 04

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Neuroblastoma (NB) is the most common extracranial solid tumor that affects developing nerve cells in the fetus, infants, and children. miR-124 is a microRNA (miRNA) enriched in neuronal tissues, and VAMP3 (vesicle-associated membrane protein 3) has been reported to be an miR-124 target, although the relationship between NB and miR-124 or VAMP3 is unknown. Our current work identified that miR-124 levels are high in NB cases and that elevated miR-124 correlates with worse NB outcomes. Conversely, depressed VAMP3 correlates with worse NB outcomes. To investigate the mechanisms by which miR-124 and VAMP3 regulate NB, we altered miR-124 or VAMP3 expression in human NB cells and observed that increased miR-124 and reduced VAMP3 stimulated cell proliferation and suppressed apoptosis, while increased VAMP3 had the opposite effects. Genome-wide mRNA expression analyses identified gene and pathway changes which might explain the NB cell phenotypes. Together, our studies suggest that miR-124 and VAMP3 could be potential new markers of NB and targets of NB treatments.

Citation

Xiaoxiao Zhang, Chengyong Yang, Zhen Meng, Huanhuan Zhong, Xutian Hou, Fenfen Wang, Yiping Lu, Jingjing Guo, Yan Zeng. miR-124 and VAMP3 Act Antagonistically in Human Neuroblastoma. International journal of molecular sciences. 2023 Oct 04;24(19)