Journal
JOURNAL OF MOLECULAR MEDICINE-JMM
Volume 98, Issue 11, Pages 1525-1546Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s00109-020-01984-x
Keywords
HOTAIR; Gliomas; Intergenic RNA; Cell cycle; Wnt; beta-catenin; Biomarker
Funding
- Monash University Malaysia
- HDR Scholarship
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Despite extensive research, gliomas are associated with high morbidity and mortality, mainly attributed to the rapid growth rate, excessive invasiveness, and molecular heterogeneity, as well as regenerative potential of cancer stem cells. Therefore, elucidation of the underlying molecular mechanisms and the identification of potential molecular diagnostic and prognostic biomarkers are of paramount importance. HOX transcript antisense intergenic RNA (HOTAIR) is a well-studied long noncoding RNA, playing an emerging role in tumorigenesis of several human cancers. A growing amount of preclinical and clinical evidence highlights the pro-oncogenic role ofHOTAIRin gliomas, mainly attributed to the enhancement of proliferation and migration, as well as inhibition of apoptosis. In vitro and in vivo studies demonstrate thatHOTAIRmodulates the activity of specific transcription factors, such as MXI1, E2F1, ATF5, and ASCL1, and regulates the expression of cell cycle-associated genes along with related signaling pathways, like the Wnt/beta-catenin axis. Moreover, it can interact with specific miRNAs, including miR-326, miR-141, miR-148b-3p, miR-15b, and miR-126-5p. Of importance,HOTAIRhas been demonstrated to enhance angiogenesis and affect the permeability of the blood-tumor barrier, thus modulating the efficacy of chemotherapeutic agents. Herein, we provide evidence on the functional role ofHOTAIRin gliomas and discuss the benefits of its targeting as a novel approach toward glioma treatment.
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