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CATIP antisense RNA 1 (CATIP-AS1)

Target
CATIP-AS1
Molecular classification
Long non-coding RNA (lncRNA), Antisense RNA
01

Overview

CATIP antisense RNA 1 (CATIP-AS1) is a long non-coding RNA (lncRNA) transcribed from the antisense strand of the CATIP gene locus. Recent studies have implicated CATIP-AS1 as a tumor suppressor in thyroid cancer, where it is significantly downregulated compared to normal tissue. Low levels of CATIP-AS1 are associated with poor prognosis in thyroid cancer patients. Functionally, overexpression of CATIP-AS1 inhibits thyroid cancer cell proliferation, migration, and EMT, while promoting apoptosis. Mechanistically, CATIP-AS1 acts as a molecular sponge for miR-515-5p, antagonizing its effects and leading to upregulation of SMAD4, a critical mediator of the TGF-β pathway important in cancer biology. These findings suggest that CATIP-AS1 may serve as a novel biomarker for thyroid cancer detection and prognosis, and may be explored as a potential therapeutic target in the future[2][3][4][5].

Other names
CATIP-AS1
02

Biological functions

Regulation of gene expression, particularly acting as a competing endogenous RNA (ceRNA) by sponging specific microRNAs (e.g., miR-515-5p)Modulation of epithelial–mesenchymal transition (EMT)Influencing cell proliferation, apoptosis, and migration in thyroid cancer cells
03

Disease associations

Cancer (especially thyroid cancer/THCA)Potentially implicated in other cancers or diseases where lncRNA dysfunction is involved, though most data is specific to thyroid cancer at this time
04

Biomarkers

Biomarker for poor prognosis in thyroid cancer—lower CATIP-AS1 expression is associated with worse outcomesPotential early detection marker for thyroid cancer

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