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Regulatory roles of lncRNA PANDAR in breast cancer cell proliferation

Qinnuan Sun
Qinnuan Sun
 und 
Xiumei Wang
Xiumei Wang
   | 30. Dez. 2021
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Article Category: Brief communication (original)
Online veröffentlicht: 30. Dez. 2021
Seitenbereich: 285 - 291
DOI: https://doi.org/10.2478/abm-2021-0035
Schlüsselwörter
© 2021 Qinnuan Sun et al., published by Sciendo
This work is licensed under the Creative Commons Attribution 4.0 International License.

Background

Breast cancer represents the second most deadly malignancy in women, and long noncoding RNAs (lncRNAs) have crucial functions in its development.

Objective

To investigate effects of the promoter of CDKN1A antisense DNA damage-activated RNA (PANDAR) on epithelial-mesenchymal transition (EMT) in breast cancer cells and their proliferation.

Methods

lncRNAs potentially regulating the transcriptional activity of the E-cadherin (E-cad, an epithelial cell marker) gene promoter were screened using a dual-luciferase reporter assay. PANDAR was overexpressed in Michigan cancer foundation 7 (MCF-7) breast cancer cells. E-cad and N-cadherin (N-cad, a mesenchymal cell marker) levels were detected by immunoblotting. Cell viability was assessed using a cell counting kit-8.

Results

PANDAR and TCONS00068220/LOC105375819 conservatively regulated the promoter activity of E-cad. PANDAR overexpression in MCF-7 inhibited E-cad expression, but upregulated N-cad. The enhanced expression of PANDAR promoted cell proliferation.

Conclusion

PANDAR is a key transcriptional repressor of E-cad and has regulatory effects on the promotion of cell proliferation. PANDAR is an oncogene in breast cancer, potentially facilitating the EMT process and promoting cell proliferation.
eISSN:
1875-855X
Sprache:
Englisch
Zeitrahmen der Veröffentlichung:
6 Hefte pro Jahr
Fachgebiete der Zeitschrift:
Medizin, Gesundheitsfachberufe, Vorklinische Medizin, Grundlagenmedizin, andere, Klinische Medizin
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