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Downregulation of MTHFD2 Inhibits Proliferation and Enhances Chemosensitivity in Hepatocellular Carcinoma via
Jie Wang1, Ze Yu1, Yixiao Jiang2
1Cellular and Molecular Biology Laboratory, Zhoushan Hospital, Wenzhou Medical University, 316021 Zhoushan, Zhejiang, China.
Background:
Despite the substantial impact of methylenetetrahydrofolate dehydrogenase 2 (MTHFD2) on cancer progression, its significance in the regulation of hepatocellular carcinoma (HCC) cell proliferation and chemosensitivity remains poorly defined.
Methods:
We evaluated MTHFD2 expression in a total of 95 HCC tissues by immunohistochemistry and analyzed the association of MTHFD2 with clinicopathologic features. qRT-PCR and Western blotting were conducted to verify MTHFD2 expression levels. Bioinformatics analysis such as gene set enrichment analysis (GSEA) and kyoto encyclopedia of genes and genomes (KEGG) enrichment analysis were used to predict the signaling pathways involved in MTHFD2. In addition, to investigate the anti-tumor effects of MTHFD2 knockdown, Cell Counting Kit-8 (CCK-8) and EdU assays were used.
Results:
We found that MTHFD2 was frequently upregulated in HCC, and the combination of increased expression of MTHFD2 and Ki67 was associated with poor HCC prognosis. MTHFD2 knockdown significantly inhibited HCC cell proliferation and effectively sensitized HCC cells to sorafenib and lenvatinib. PI3K/AKT pathway was involved in MTHFD2-mediated modulation of proliferation and chemosensitivity.
Conclusions:
These findings indicate that MTHFD2 plays an important role in proliferation and chemosensitivity of HCC, indicating that it may serve as a novel pharmacological target for improving HCC therapy.
Insights
Methylenetetrahydrofolate dehydrogenase 2 (MTHFD2) is upregulated in hepatocellular carcinoma (HCC), driving proliferation and reducing drug sensitivity. Targeting MTHFD2 may improve HCC therapy.
Area of Science:
- Oncology
- Molecular Biology
- Biochemistry
Background:
- Methylenetetrahydrofolate dehydrogenase 2 (MTHFD2) is implicated in cancer progression.
- Its specific role in hepatocellular carcinoma (HCC) cell proliferation and chemosensitivity is not well understood.
Purpose of the Study:
- To investigate the role of MTHFD2 in HCC cell proliferation and chemosensitivity.
- To explore MTHFD2 as a potential therapeutic target for HCC.
Main Methods:
- Immunohistochemistry and qRT-PCR to assess MTHFD2 expression in 95 HCC tissues.
- Bioinformatics analyses (GSEA, KEGG) to predict involved signaling pathways.
- MTHFD2 knockdown experiments using CCK-8 and EdU assays to evaluate anti-tumor effects and drug sensitivity.
Main Results:
- MTHFD2 was frequently upregulated in HCC tissues, correlating with poor prognosis when co-expressed with Ki67.
- MTHFD2 knockdown inhibited HCC cell proliferation and enhanced sensitivity to sorafenib and lenvatinib.
- The PI3K/AKT pathway was identified as a key mediator of MTHFD2's effects on proliferation and chemosensitivity.
Conclusions:
- MTHFD2 significantly influences HCC cell proliferation and chemosensitivity.
- MTHFD2 represents a promising novel pharmacological target for enhancing hepatocellular carcinoma treatment strategies.
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