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Article Abstract
Objective: The present study aimed to evaluated the expression profiles of the Hydrogen sulfide (HS)-synthesizing enzymes cystathionine β-synthase (CBS) and cystathionine γ-lyase (CSE) expression and attempted to establish its relationship to ovarian cancer (OV) drug resistance and prognosis.
Methods: The expression levels of cystathionine β-synthase () and cystathionine γ-lyase () were analyzed in OV from GSE26193 and GSE14764 datasets, and OVCAR8 cisplatin resistant cell line from GSE45553 datasets. The correlation between prognosis with and expression levels were analyzed in OV from GSE26193 dataset. Immunohistochemical (IHC) analysis of and expression, meanwhile Kaplan-Meier analyzed of corresponding prognosis in OV patients. The relative drug sensitivity of and genes via gene set cancer analysis. Ultimately, the correlations among OV immune cells, , and . The and expression levels, and pan-cancer prognosis using TCGA database.
Results: and were significantly overexpressed in the OV and OVCAR8 cisplatin resistant cell line (GSE26193: p < 0.001 and p < 0.0001; GSE14764: p < 0.001 and p < 0.0001 IHC: p<0.0001 and p<0.0001; GSE45553: p < 0.0001 and p < 0.0001, respectively). Interestingly, is closely associated with OS and PFS in GSE26193 dataset and OV patients (GSE26193: PFS, p = 0.0391; OS, p = 0.0328. OV patients: PFS, p= 0.017; OS, p=0.030). The and expression levels were correlated with immune cells, CD4 T cells, neutrophils, macrophages, and dendritic cells (DC) and their respective infiltration scores significantly differed. Both and expression levels influenced pan-cancer prognosis.
Conclusion: HS overexpression affected the OS and PFS and could also have an impact on the drug resistance of OV. Pan cancer prognosis may vary with HS expression.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC12126979 | PMC |
| http://dx.doi.org/10.2147/IJWH.S515836 | DOI Listing |
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