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AFAP1 antisense RNA 1
(AFAP1-AS1; also called AFAP1AS or AFAP1-AS) is a
long non-coding RNA transcribed antisense to the
protein-coding AFAP1 locus. AFAP1-AS1 regulates gene
expression through mechanisms that can include microRNA sequestration,
interaction with regulatory proteins, modulation of mRNA stability, and
epigenetic control of transcription. In many solid cancers,
AFAP1-AS1 ↑ is the predominant pattern and is associated
with increased proliferation, survival, migration, invasion,
epithelial-mesenchymal transition, metastasis, treatment resistance, and
poorer prognosis. Conversely, AFAP1-AS1 knockdown or
expression ↓ commonly reduces tumour-cell growth and motility
and can increase apoptosis or treatment sensitivity in experimental models.
Reported downstream pathways and targets include c-MYC, WNT/β-catenin,
PI3K/AKT, RAS/MEK, EMT-related transcription factors, EZH2-mediated gene
repression, and multiple tumour-specific microRNA axes.
Gene reference;
Cancer review.
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