ArticleOncology research2022
Inhibition of apoptosis-regulatory protein Siva-1 reverses multidrug resistance in gastric cancer by targeting PCBP1.
Article in Oncology research, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed, 8 citations in OpenAlex.
- Integrated genome-wide high-throughput screening and functional validation identifies Sm proteins as essential splicing regulators for gastric cancer progression.Functional & integrative genomics · 2026Article
- SIVA1 Knockdown Drives Aggressive Phenotypes in Triple-Negative Breast Cancer Cells while Enhancing Paclitaxel Efficacy.ACS omega · 2026Article
- RNA‑binding proteins as epithelial transcriptome orchestrators in gastric cancer: Immune‑metabolic crosstalk and therapeutic vulnerability (Review).International journal of molecular medicine · 2026Review
- Silencing of SIVA‑1 promotes cisplatin resistance in gastric cancer via the Bcl‑2/BAX‑mediated mitochondria‑dependent apoptosis pathway.Oncology reports · 2026Article
- Gene-guided repurposing identifies dihydroergotamine as a candidate inhibitor of the BCL2-SIVA1 axis in advanced gastric cancer in vitro.Biology direct · 2026Article
- Cancer stem cell-driven drug resistance in colorectal carcinoma: molecular aspects and therapeutic potentials.Molecular cancer · 2026Review
- DNA-RNA hybrids in inflammation: sources, immune response, and therapeutic implications.Journal of molecular medicine (Berlin, Germany) · 2025Review
- LncRNA in gastric cancer drug resistance: deciphering the therapeutic strategies.Frontiers in oncology · 2025Review
- Deciphering the Role of Exosomal Non-Coding RNA (ncRNA) in Drug Resistance of Gastrointestinal Tumors; an Updated Review.Cell biochemistry and biophysics · 2024Review
- SIVA-1 enhances acquired chemotherapeutic drug resistance of gastric cancer in vivo by regulating the ARF/MDM2/p53 pathway.Heliyon · 2024Article
- SIVA-1 interaction with PCBP1 serves as a predictive biomarker for cisplatin sensitivity in gastric cancer and its inhibitory effect on tumor growthJournal of Cancer · 2024Article
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Authors and funding
15 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Introduction: Siva-1, as a pro-apoptotic protein, has been shown to induce extensive apoptosis in a number of different cell lines. In our previous study, we showed that overexpressed Siva-1 decreased the apoptosis of gastric cancer cells. So, we believe that it can also work as an anti-apoptotic protein. The present study aimed to determine the specific role of Siva-1 in anticancer drug resistance in gastric cancer in vivo and in vitro and preliminarily reveal the mechanism. Materials and Methods: A vincristine-resistant MKN-28/VCR gastric cancer cell line with stably downregulated Siva-1 was established. The effect of Siva-1 downregulation on chemotherapeutic drug resistance was assessed by measuring the IC50 and pump rate of doxorubicin. Proliferation, apoptosis of cells, and cell cycle were detected via colony formation assay and flow cytometry, respectively. Additionally, migration and invasion of cells was detected via wound healing and transwell assays. Moreover, we determined Results: Siva-1 downregulation reduced the pump rate of doxorubicin and enhanced the response to drug treatment. Siva-1 negatively regulated proliferation and promoted apoptosis of cells by potentiality G2-M phase arresting. Inhibition of Siva-1 expression in MKN-28/VCR cells significantly weakened wound healing ability and decreased invasion ability. Poly(C)-binding protein 1 (PCBP1) was identified as a Siva-1-interacting protein in yeast two-hybrid screening. Semiquantitative RT-PCR and western blotting revealed that Siva-1 downregulation could inhibit expression of PCBP1, Akt, and NF-κB and eventually decrease the expression of MDR1 and MRP1. Conclusion: he current study demonstrated that the downregulation of Siva-1, which functions as a regulator of MDR1 and MRP1 gene expression in gastric cancer cells by inhibiting PCBP1/Akt/NF-κB signaling pathway expression, enhanced the sensitivity of gastric cancer cells to certain chemotherapies.
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