Long non-coding RNA UCA1 Knockdown Assisted by CRISPR/Cas9 in Female Cancer Cell Lines Increases Mir-143 Tumor-Suppressor

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Montazeri Najafabadi Behshad; Doosti Abbas; Kiani Jafar

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Journal Paper

Paper Information

Journal: IRANIAN JOURNAL OF PUBLIC HEALTH Year:2024 | Volume:53 | Issue:4 Page(s): 934-946

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Information Journal Paper

Title

Long non-coding RNA UCA1 Knockdown Assisted by CRISPR/Cas9 in Female Cancer Cell Lines Increases Mir-143 Tumor-Suppressor

Author(s)

Montazeri Najafabadi Behshad | Doosti Abbas | Kiani Jafar | Issue Writer Certificate

Keywords

Long non-coding RNA

Urothelial carcinoma associated 1

Cancer

Knockdown

miR-143 tumorsuppressor

Abstract

Abstract

Background: The lncRNAs has been linked to several malignancies, including breast cancer. Our objective was to investigate the impact of urothelial carcinoma associated 1 (UCA1) on cellular growth and death by a CRISPR/Cas9 knockdown technique.

Methods: In 2020, the CHOPCHOP program was utilized to design two sgRNAs targeting the UCA gene. sgRNA1 and sgRNA2 were inserted into two different CRISPR plasmids to produce two recombinant plasmids. These recombinant plasmids were simultaneously transfected into MCF-7 and MDA-MB 231 carcinoma of the breast cells. Proliferation and apoptosis were compared using the MTT test, CCK-8 assay, and flow cytometry evaluation. RNA-hybrid software, quantitative reverse transcription PCR, and luciferase assays were utilized to confirm the relationship between UCA1 and miR-143.

Results: Proliferated cells were less active in MTT and CCK-8 tests and fellow cytometry analysis. The PX459-sgRNA1,2 group had elevated levels of the cancer biomarker Caspase-3 gene expression (P<0.001). When WT-UCA1 and miR-143 were co-transfected, the luciferase activity was drastically decreased.

Conclusion: One very effective method of regulating cellular proliferation in vitro is the deletion of UCA1, which CRISPR/Cas9 accomplishes.

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