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Original Article

Exploring the clinical and cellular mechanisms of LncRNA-KCNQ1OT1/miR-29a-3p/SOCS3 molecular axis in cases of unexplained recurrent spontaneous abortion

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Article: 2337723 | Received 17 Jan 2024, Accepted 27 Mar 2024, Published online: 18 Apr 2024

Figures & data

Figure 1. The levels of LncRNA-KCNQ1OT1, miR-29a-3p, SOCS3 mRNA, and SOCS3 protein expression in the abortion tissues of women with URSA. Panel A denotes the expression of KCNQ1OT1, Panel B shows the expression of miR-29a-3p, Panel C displays the expression of SOCS3 mRNA, and Panel D represents the expression of SOCS3 protein. *Compared with the control group, Wilcoxon rank-sum test, p < 0.05.

Figure 1. The levels of LncRNA-KCNQ1OT1, miR-29a-3p, SOCS3 mRNA, and SOCS3 protein expression in the abortion tissues of women with URSA. Panel A denotes the expression of KCNQ1OT1, Panel B shows the expression of miR-29a-3p, Panel C displays the expression of SOCS3 mRNA, and Panel D represents the expression of SOCS3 protein. *Compared with the control group, Wilcoxon rank-sum test, p < 0.05.

Figure 2. Influence of inhibiting KCNQ1OT1 on the growth and programmed cell death of HTR8/SVneo cells. In A, KCNQ1OT1 expression is measured using qRT-PCR. In B, the CCK-8 assay is employed to evaluate cell growth in both sets of cells. C depicts the evaluation of cell apoptosis via flow cytometry, while D depicts the determination of cell apoptosis-related markers through qRT-PCR.* Compared with the Si-NC group, p < 0.05.

Figure 2. Influence of inhibiting KCNQ1OT1 on the growth and programmed cell death of HTR8/SVneo cells. In A, KCNQ1OT1 expression is measured using qRT-PCR. In B, the CCK-8 assay is employed to evaluate cell growth in both sets of cells. C depicts the evaluation of cell apoptosis via flow cytometry, while D depicts the determination of cell apoptosis-related markers through qRT-PCR.* Compared with the Si-NC group, p < 0.05.

Figure 3. KCNQ1OT1 enhances SOCS3 expression by acting as a sponge to absorb miR-29a-3p. (A) Displays the outcomes of RNA FISH, revealing the presence of KCNQ1OT1 in both the cellular cytoplasm and nucleus. (B) Displays the statistical assessment of the dual-luciferase reporter assay, while (C) displays the statistical analysis of the RNA pull-down assay. (D) Displays the statistical analysis of the RNA-IP experiment.*Compared with the NC mimic group, p < 0.05; #compared with Mut-miR-29a-3p, p < 0.05; & compared with anti-IgG, p < 0.05.

Figure 3. KCNQ1OT1 enhances SOCS3 expression by acting as a sponge to absorb miR-29a-3p. (A) Displays the outcomes of RNA FISH, revealing the presence of KCNQ1OT1 in both the cellular cytoplasm and nucleus. (B) Displays the statistical assessment of the dual-luciferase reporter assay, while (C) displays the statistical analysis of the RNA pull-down assay. (D) Displays the statistical analysis of the RNA-IP experiment.*Compared with the NC mimic group, p < 0.05; #compared with Mut-miR-29a-3p, p < 0.05; & compared with anti-IgG, p < 0.05.

Figure 4. miR-29a-3p hinders the growth of human villous trophoblast cells and encourages their programmed cell death by suppressing the activity of SOCS3. (A) Displays the measurement of miR-29a-3p and SOCS3 expression using qRT-PCR. (B) Displays the utilization of a CCK-8 assay to assess cell proliferation. (C) Displays the application of flow cytometry to observe cell apoptosis. (D) Displays the evaluation of cell apoptosis-related markers through qRT-PCR. Tukey HSD* Compared with the NC mimic group, p < 0.05; #compared with NC vector, p < 0.05; &compared with the miR-29a-3p mimic, n = 3, p < 0.05.

Figure 4. miR-29a-3p hinders the growth of human villous trophoblast cells and encourages their programmed cell death by suppressing the activity of SOCS3. (A) Displays the measurement of miR-29a-3p and SOCS3 expression using qRT-PCR. (B) Displays the utilization of a CCK-8 assay to assess cell proliferation. (C) Displays the application of flow cytometry to observe cell apoptosis. (D) Displays the evaluation of cell apoptosis-related markers through qRT-PCR. Tukey HSD* Compared with the NC mimic group, p < 0.05; #compared with NC vector, p < 0.05; &compared with the miR-29a-3p mimic, n = 3, p < 0.05.
Supplemental material

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Data availability statement

All data generated or analyzed during this study are included in this article. Further enquiries can be directed to the corresponding author.