ArticleFrontiers in oncology2021
The Enhanced Inhibitory Effect of Estrogen on PD-L1 Expression Following Nrf2 Deficiency in the AOM/DSS Model of Colitis-Associated Cancer.
Article in Frontiers in oncology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 17 citations in OpenAlex.
- Differential NRF2 Methylation and PD-1 Expression in Normal Tissues of Colorectal Adenoma and Carcinoma across Sexes.The world journal of men's health · 2026Article
- Sex-Specific Molecular Markers NRF2 and PD-L1 in Colon Carcinogenesis: Implications for Right-Sided Colon Cancer.Cancer research and treatment · 2025Article
- Integrating COX-2, stromal PD-L1, and T-cell infiltration enhances prognostic stratification in colorectal cancer.BMC cancer · 2025Article
- MAF1 inhibits hepatocarcinogenesis by fostering an immunostimulatory tumor microenvironment.Journal for immunotherapy of cancer · 2025Article
- Estrogen-related differences in antitumor immunity and gut microbiome contribute to sexual dimorphism of colorectal cancer.Oncoimmunology · 2024Article
- 17β-estradiol in colorectal cancer: friend or foe?Cell communication and signaling : CCS · 2024Review
- Direct and indirect effects of estrogens, androgens and intestinal microbiota on colorectal cancer.Frontiers in cellular and infection microbiology · 2024Review
- Sex differences in cancer and immunotherapy outcomes: the role of androgen receptor.Frontiers in immunology · 2024Review
- Nrf2 in TIME: The Emerging Role of Nuclear Factor Erythroid 2-Related Factor 2 in the Tumor Immune Microenvironment.Molecules and cells · 2023Review
- Influence of location-dependent sex difference on PD-L1, MMR/MSI, and EGFR in colorectal carcinogenesis.PloS one · 2023Article
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Authors and funding
12 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Nuclear factor erythroid 2-related factor 2 (Nrf2) plays a dual role in carcinogenesis. We previously reported that Nrf2 deficiency enhances the anti-tumorigenic effect of 17β-estradiol (E2) in an azoxymethane (AOM)/dextran sodium sulfate (DSS) model of colitis-associated cancer (CAC). Herein, we aimed to determine a possible explanation for our recent work and investigated the immune microenvironment represented by programmed death-ligand 1 (PD-L1) expression. One week after the AOM injection, mice were administered with DSS in drinking water for seven days; daily E2 injections were intraperitoneally administered during this period. The mice were sacrificed 16 weeks after AOM injection and analyzed for PD-L1 expression in the distal colon tissues using Western blotting and immunohistochemistry (IHC). Based on Western blotting results, PD-L1 expression was reduced in Nrf2 knockout (KO) female and E2-treated male mice when compared with their wild-type counterparts, following AOM/DSS treatment; this supports the association of PD-L1 expression with tumor progression. Additionally, this finding was in good agreement with the IHC results for PD-L1. Furthermore, we observed that PD-L1 is predominantly expressed in stromal cells rather than on epithelial cells in the colon. Western blotting revealed that PD-L1 expression in the colon positively correlates with expressions of inducible nitric oxide synthase (iNOS) (male,
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