Long non coding RNA SLC26A4-AS1 exerts antiangiogenic effects in human glioma by upregulating NPTX1 via NFKB1 transcriptional factor

FEBS J. 2021 Jan;288(1):212-228. doi: 10.1111/febs.15325. Epub 2020 Jul 15.

Abstract

Malignant gliomas are a heterogeneous group of brain tumors with a poor prognosis, which is largely due to its aggressive invasiveness and angiogenesis. In recent years, it has been found that multiple long noncoding RNAs (lncRNAs) participate in a wide range of biological functions including angiogenesis through the regulation of gene expression in cancers. In this study, we investigate and report the novel role of lncRNA SLC26A4-AS1 in gliomas, with a novel mechanism involving transcription factors NFKB1 and NPTX1. We determined that SLC26A4-AS1 was downregulated in human glioma tissues and cells. Furthermore, overexpression of SLC26A4-AS1 or NPTX1 restrained the aggressiveness of glioma cells and their pro-angiogenic ability. SLC26A4-AS1 was also found to upregulate NPTX1 by recruiting NFKB1 into the NPTX1 promoter. Moreover, silencing of either NPTX1 or NFKB1 restored the aggressive and pro-angiogenic properties of glioma cells in the presence of SLC26A4-AS1. Taken together, we demonstrate that SLC26A4-AS1 promotes NPTX1 transcriptional activity by recruiting NFKB1 and thus exerting antiangiogenic effects on glioma cells. This study provides an experimental basis for the intervention of SLC26A4-AS1 in the treatment of gliomas.

Keywords: NFKB1; NPTX1; SLC26A4-AS1; glioma; lncRNA.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Brain Neoplasms / blood supply
  • Brain Neoplasms / genetics*
  • Brain Neoplasms / metabolism
  • Brain Neoplasms / pathology
  • C-Reactive Protein / antagonists & inhibitors
  • C-Reactive Protein / genetics*
  • C-Reactive Protein / metabolism
  • Case-Control Studies
  • Cell Line, Tumor
  • Cell Movement
  • Cell Proliferation
  • Gene Expression Regulation, Neoplastic
  • Glioblastoma / blood supply
  • Glioblastoma / genetics*
  • Glioblastoma / metabolism
  • Glioblastoma / pathology
  • Humans
  • Mice
  • Mice, Inbred BALB C
  • Mice, Nude
  • NF-kappa B p50 Subunit / antagonists & inhibitors
  • NF-kappa B p50 Subunit / genetics*
  • NF-kappa B p50 Subunit / metabolism
  • Neoplasm Grading
  • Neovascularization, Pathologic / genetics*
  • Neovascularization, Pathologic / metabolism
  • Neovascularization, Pathologic / pathology
  • Nerve Tissue Proteins / antagonists & inhibitors
  • Nerve Tissue Proteins / genetics*
  • Nerve Tissue Proteins / metabolism
  • Neuroglia / metabolism
  • Neuroglia / pathology
  • Promoter Regions, Genetic
  • RNA, Long Noncoding / agonists
  • RNA, Long Noncoding / genetics*
  • RNA, Long Noncoding / metabolism
  • RNA, Small Interfering / genetics
  • RNA, Small Interfering / metabolism
  • Signal Transduction
  • Sulfate Transporters / genetics*
  • Sulfate Transporters / metabolism
  • Tumor Burden
  • Xenograft Model Antitumor Assays

Substances

  • NF-kappa B p50 Subunit
  • NFKB1 protein, human
  • Nerve Tissue Proteins
  • RNA, Long Noncoding
  • RNA, Small Interfering
  • SLC26A4 protein, human
  • Sulfate Transporters
  • neuronal pentraxin
  • C-Reactive Protein