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MEDB-02. The identification and functional characterization of circular RNA Circ_63706 in sonic hedgehog medulloblastomas
Circular RNAs (circRNAs) are increasingly recognized as stable and specific biomarkers and therapeutic targets in many cancers, but little is known about their function, subtype specificity, and biomarker potential in medulloblastomas. Medulloblastoma is a central nervous system tumor that predomina...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Oxford University Press
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9165035/ http://dx.doi.org/10.1093/neuonc/noac079.377 |
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author | Pokhrel, Rudramani Katsushima, Keisuke Stapleton, Stacie Jallo, George Raabe, Eric Eberhart, Charles G Perera, Ranjan J |
author_facet | Pokhrel, Rudramani Katsushima, Keisuke Stapleton, Stacie Jallo, George Raabe, Eric Eberhart, Charles G Perera, Ranjan J |
author_sort | Pokhrel, Rudramani |
collection | PubMed |
description | Circular RNAs (circRNAs) are increasingly recognized as stable and specific biomarkers and therapeutic targets in many cancers, but little is known about their function, subtype specificity, and biomarker potential in medulloblastomas. Medulloblastoma is a central nervous system tumor that predominantly affects children and always requires aggressive therapy. Understanding and identifying novel disease-related molecular mechanisms and pathways are essential for developing optimal and novel therapies. To identify medulloblastoma subgroup-specific circRNAs, we subjected RNA-seq data from 175 clinical medulloblastoma samples representing the four subgroups to a statistical and machine learning (random forest classification) pipeline. Circular RNA circ_63706 expression was specific to the sonic hedgehog (SSH) group, which was confirmed through in situ hybridization analysis of clinical tissue samples. Functional characterization of circ_63706 by siRNAs and shRNAs demonstrated that cell proliferation, invasion, and apoptosis are perturbed in circ_63706 cells and inhibited in vivo tumor growth. These novel medulloblastoma-specific circular RNAs are emerging as important oncogenes that not only provide valuable mechanistic insights into how medulloblastomas develop but also how they can be used as biomarkers and therapeutic targets. These results pave the way for the specific identification and personalized treatment of different medulloblastoma subgroups. |
format | Online Article Text |
id | pubmed-9165035 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | Oxford University Press |
record_format | MEDLINE/PubMed |
spelling | pubmed-91650352022-06-05 MEDB-02. The identification and functional characterization of circular RNA Circ_63706 in sonic hedgehog medulloblastomas Pokhrel, Rudramani Katsushima, Keisuke Stapleton, Stacie Jallo, George Raabe, Eric Eberhart, Charles G Perera, Ranjan J Neuro Oncol Medulloblastoma Circular RNAs (circRNAs) are increasingly recognized as stable and specific biomarkers and therapeutic targets in many cancers, but little is known about their function, subtype specificity, and biomarker potential in medulloblastomas. Medulloblastoma is a central nervous system tumor that predominantly affects children and always requires aggressive therapy. Understanding and identifying novel disease-related molecular mechanisms and pathways are essential for developing optimal and novel therapies. To identify medulloblastoma subgroup-specific circRNAs, we subjected RNA-seq data from 175 clinical medulloblastoma samples representing the four subgroups to a statistical and machine learning (random forest classification) pipeline. Circular RNA circ_63706 expression was specific to the sonic hedgehog (SSH) group, which was confirmed through in situ hybridization analysis of clinical tissue samples. Functional characterization of circ_63706 by siRNAs and shRNAs demonstrated that cell proliferation, invasion, and apoptosis are perturbed in circ_63706 cells and inhibited in vivo tumor growth. These novel medulloblastoma-specific circular RNAs are emerging as important oncogenes that not only provide valuable mechanistic insights into how medulloblastomas develop but also how they can be used as biomarkers and therapeutic targets. These results pave the way for the specific identification and personalized treatment of different medulloblastoma subgroups. Oxford University Press 2022-06-03 /pmc/articles/PMC9165035/ http://dx.doi.org/10.1093/neuonc/noac079.377 Text en © The Author(s) 2022. Published by Oxford University Press on behalf of the Society for Neuro-Oncology. https://creativecommons.org/licenses/by-nc/4.0/This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial License (https://creativecommons.org/licenses/by-nc/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited. For commercial re-use, please contact journals.permissions@oup.com |
spellingShingle | Medulloblastoma Pokhrel, Rudramani Katsushima, Keisuke Stapleton, Stacie Jallo, George Raabe, Eric Eberhart, Charles G Perera, Ranjan J MEDB-02. The identification and functional characterization of circular RNA Circ_63706 in sonic hedgehog medulloblastomas |
title | MEDB-02. The identification and functional characterization of circular RNA Circ_63706 in sonic hedgehog medulloblastomas |
title_full | MEDB-02. The identification and functional characterization of circular RNA Circ_63706 in sonic hedgehog medulloblastomas |
title_fullStr | MEDB-02. The identification and functional characterization of circular RNA Circ_63706 in sonic hedgehog medulloblastomas |
title_full_unstemmed | MEDB-02. The identification and functional characterization of circular RNA Circ_63706 in sonic hedgehog medulloblastomas |
title_short | MEDB-02. The identification and functional characterization of circular RNA Circ_63706 in sonic hedgehog medulloblastomas |
title_sort | medb-02. the identification and functional characterization of circular rna circ_63706 in sonic hedgehog medulloblastomas |
topic | Medulloblastoma |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9165035/ http://dx.doi.org/10.1093/neuonc/noac079.377 |
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