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  • Open Access

    ARTICLE

    ETV4-Mediated PD-L1 Upregulation Promotes Immune Evasion and Predicts Poor Immunotherapy Response in Melanoma

    Tao Zhu1, Taofeng Wei1, Mingdong Yang1, Junjun Xu1, Huifang Jiang1, Wei He1, Juyan Zheng2,*, Haibin Dai1,*

    Oncology Research, Vol.34, No.1, 2026, DOI:10.32604/or.2025.070180 - 30 December 2025

    Abstract Background: Aberrant expression of transcription factors (TFs) is a key mechanism mediating tumor immune escape and therapeutic resistance. The involvement of E26 transformation-specific (ETS) family of TFs in immune regulation is not fully understood. The study aimed to elucidate the function of E-twenty-six variant 4 (ETV4) in tumor immune evasion and its potential as a predictive biomarker for immunotherapy in melanoma. Methods: The expression patterns of ETS family TFs were analyzed in melanoma and hepatocellular carcinoma (HCC). Single-cell RNA sequencing (scRNA-seq) was used to dissect the cellular expression and function of ETV4 in the tumor… More >

  • Open Access

    ARTICLE

    MINDY1 Induces PD-L1 Deubiquitination to Promote Immune Escape in Hepatocellular Carcinoma by the Wnt/β-Catenin Pathway

    Xingchao Song1,#, Qiuyu Song2,#, Xiao Ma1, Anzhi Xu1, Chunyan Tian1,*

    Oncology Research, Vol.33, No.11, pp. 3583-3603, 2025, DOI:10.32604/or.2025.067638 - 22 October 2025

    Abstract Background: Motif interacting with ubiquitin-containing novel DUB family-1 (MINDY1) could enhance the stability of programmed death-ligand 1 (PD-L1). The study aimed to investigate whether MINDY1 regulates the immune escape of hepatocellular carcinoma (HCC) mediated by PD-L1. Methods: MINDY1 and PD-L1 levels were detected through Western blot. The link between MINDY1 and PD-L1 was validated using the co-immunoprecipitation assay. The malignant biology of HCC cells was assessed through Cell Counting Kit-8, Carboxyfluorescein Succinimidyl Ester staining, transwell, and wound healing assay. CD8+ T cells were isolated and then co-cultured with HCC cells. Enzyme-linked immunosorbent Assay kits detected CD8+More > Graphic Abstract

    MINDY1 Induces PD-L1 Deubiquitination to Promote Immune Escape in Hepatocellular Carcinoma by the Wnt/β-Catenin Pathway

  • Open Access

    ARTICLE

    Tumor-expressing PD-L1 regulates NT5E expression through MAPK/ERK pathway in triple-negative breast cancer

    CHENG CHENG1,2,3, CHAO SHI1,2, SHANG WU1,2, WEIXING WU3, JINGPING LI1,2, SINUO GAO1,2, MENG HAN3, YIMIN WANG3, XIANGMEI ZHANG2,4,*, YUNJIANG LIU1,2,*

    Oncology Research, Vol.33, No.7, pp. 1633-1648, 2025, DOI:10.32604/or.2025.061637 - 26 June 2025

    Abstract Objectives: While programmed cell death 1 (PD-1) inhibitors have improved cancer treatment, the function and mechanisms of programmed cell death ligand 1 (PD-L1), particularly when expressed by cancer cells, remain unclear. This study aims to explore the role of PD-L1 within breast cancer cells and identify key targets for future immunotherapy. Methods: RNA-seq was performed on breast cancer cells with silenced PD-L1 to screen for differentially expressed genes, followed by bioinformatics analysis. Clinical specimens from breast cancer patients undergoing primary surgery without preoperative treatment were collected, along with in vitro analysis to validate the potential mechanism. Results:More >

  • Open Access

    PROCEEDINGS

    Research on the Synergistic Mechanism of Photothermal-Chemotherapy-Immunotherapy of Multi-Functional Nanoparticles Against Gastric Cancer

    Erdong Shen1, Ting Pan1, Pan Guo1, Ke Chen1, Rui Xu1, Mei Yang1, Dahe Zhan1, Fang Fang1, Qinghui Wu1,*, Jianbing Hu1,*

    The International Conference on Computational & Experimental Engineering and Sciences, Vol.30, No.4, pp. 1-3, 2024, DOI:10.32604/icces.2024.012772

    Abstract Objective
    This study investigates the synergistic effects of a novel multifunctional nanoparticle on gastric cancer treatment through photothermal therapy, chemotherapy, and immunotherapy.

    Method
    Synthesize hollow mesoporous Prussian blue nanoparticles and load them with luteolin. Use exosomes to encapsulate the nanoparticles and modify the surface of the targeted peptide GX1. Detect the morphology of nanoparticles using a nanoparticle size analyzer and transmission electron microscopy. Use Coomassie Brilliant Blue to detect the effect of extracellular vesicle encapsulation. Detect the thermal conversion efficiency of nanoparticles under specific laser irradiation through infrared and ultraviolet spectroscopy, as well as the release rate… More >

  • Open Access

    ARTICLE

    RNF26 up-regulates PD-L1 to regulate the cancer immune response in ccRCC

    WEIGANG REN1,#, JING LI2,#, RUIJIANG ZENG3,4, LIANG ZHU3,4,*

    BIOCELL, Vol.48, No.9, pp. 1323-1330, 2024, DOI:10.32604/biocell.2024.051747 - 04 September 2024

    Abstract Background: Clear cell renal cell carcinoma (ccRCC) stands as the most prevalent form of kidney cancer, accounting for a significant proportion of malignancies affecting the kidneys. ccRCC is well known as a type of tumour with immunogenicity. Immune checkpoint inhibitors (ICIs) aim to enhance the anticancer immune response in ccRCC by blocking programmed cell death 1 ligand 1/programmed death 1 (PD-L1/PD-1) pathways. In a previous study, we showed that RING finger protein 26 (RNF26) degrades chromobox 7 (CBX7) to activate the tumor necrosis factor (TNF) in ccRCC. Methods: We analyzed The Cancer Genome Atlas (TCGA)… More > Graphic Abstract

    RNF26 up-regulates PD-L1 to regulate the cancer immune response in ccRCC

  • Open Access

    ARTICLE

    High expression of PD-L1 mainly occurs in non-small cell lung cancer patients with squamous cell carcinoma or poor differentiation

    LU LIU1,2, BIN XIE1,2, WEI ZHU1,2, QIUYAN HE1,2, JIANHUA ZHOU1,2, SHUANG LIU3, YONGGUANG TAO4, DESHENG XIAO1,2,*

    Oncology Research, Vol.31, No.3, pp. 275-286, 2023, DOI:10.32604/or.2023.028227 - 22 May 2023

    Abstract Background: Lung cancer is one of the most lethal cancers worldwide, but studies have shown that the higher the expression of programmed cell death protein 1 ligand 1 (PD-L1) in non-small cell lung cancer (NSCLC), the more likely it will benefit from anti-PD-L1 immunotherapy. The purpose of our study was to collect and analyze abundant clinical samples in order to provide evidence for clinicians and patients who might consider anti-PD-L1 immunotherapy while jointly formulating treatment plans. Methods: On the one hand, we obtained cases from The Cancer Genome Atlas (TCGA) database, including 498 lung squamous… More >

  • Open Access

    REVIEW

    Review and prospect of immune checkpoint blockade therapy represented by PD-1/PD-L1 in the treatment of clear cell renal cell carcinoma

    WENFEI GE1,#, SHIYAN SONG1,#, XIAOCHEN QI1,#, FENG CHEN1,#, XIANGYU CHE1, YONGHAO SUN1, JIN WANG1, XIAOWEI LI2, NANA LIU3, QIFEI WANG1,*, GUANGZHEN WU1,*

    Oncology Research, Vol.31, No.3, pp. 255-270, 2023, DOI:10.32604/or.2023.027942 - 22 May 2023

    Abstract As a common tumor of the urinary system, the morbidity and mortality related to renal carcinoma, are increasing annually. Clear cell renal cell carcinoma (CCRCC) is the most common subtype of renal cell carcinoma, accounting for approximately 75% of the total number of patients with renal cell carcinoma. Currently, the clinical treatment of ccRCC involves targeted therapy, immunotherapy, and a combination of the two. In immunotherapy, PD-1/PD-L1 blocking of activated T cells to kill cancer cells is the most common treatment. However, as treatment progresses, some patients gradually develop resistance to immunotherapy. Meanwhile, other patients More > Graphic Abstract

    Review and prospect of immune checkpoint blockade therapy represented by PD-1/PD-L1 in the treatment of clear cell renal cell carcinoma

  • Open Access

    REVIEW

    The effect of Wnt/β-catenin signaling on PD-1/PDL-1 axis in HPV-related cervical cancer

    PARISA SHIRI AGHBASH1,2,4, NIMA HEMMAT1, BEHZAD BARADARAN1,3, AHAD MOKHTARZADEH1, VAHDAT POORTAHMASEBI2,4, MAHIN AHANGAR OSKUEE2,4, HOSSEIN BANNAZADEH BAGHI1,2,4,*

    Oncology Research, Vol.30, No.3, pp. 99-116, 2022, DOI:10.32604/or.2022.026776 - 12 January 2023

    Abstract Infection with high-risk human papillomavirus (HPV), including HPV-16 and HPV-18, is the main cause of malignancies, such as cervical cancer. Viral oncoproteins encoded by HPV are expressed in HPV-positive cancers and associated with the early cancer stages and the transformation of normal cells. The signaling pathways involved in the transformation of normal cells to cancerous form and the subsequently expressed programmed cell death-ligand 1 (PD-L1) on the surface of the transformed cells lead to a disruption in recognition of tumor cells by the immune cell system, including T lymphocytes and dendritic cells which lead to… More > Graphic Abstract

    The effect of Wnt/β-catenin signaling on PD-1/PDL-1 axis in HPV-related cervical cancer

  • Open Access

    ARTICLE

    Standardizing immunohistochemistry methodology for evaluation of PD-1 and PDL-1 expression in upper tract urothelial carcinoma

    Luca Campedel1,†, Thomas Seisen1,†, Justine Varinot2, Géraldine Cancel-Tassin2,3,#, Alain Ruffion4, Emilien Seizilles De Mazancourt4, Myriam Decaussin-Petrucci5, Grégoire Robert6, Nam-Son Vuong6, Magali Philipp7, Eva Compérat2,3,#, Morgan Rouprêt1,3,#, Olivier Cussenot2,3,#

    Canadian Journal of Urology, Vol.28, No.3, pp. 10719-10724, 2021

    Abstract Introduction: Controversy regarding the prognostic and/or predictive role of PD-1 and PD-L1 expression for upper tract urothelial carcinoma (UTUC) could partly be explained by inconsistencies in the immunohistochemistry (IHC) methodology. The objective is to standardize the methodology for routine evaluation of PD-1 and PD-L1 expression in UTUC patients.
    Materials and methods: Twenty-two cases treated with radical nephroureterectomy between 1996 and 2015 at 11 French hospitals were randomly selected to compare different methodologies for evaluation of PD-1 and PD-L1 expression. IHC was carried out on whole tissue sections and 0.6 mm- or 2 mm-core tissue micro-arrays (TMAs) using… More >

  • Open Access

    ARTICLE

    Clinical Significance of PD-L1 Expression and CD8-Positive Tumor-Infiltrating Lymphocytes in Patients with Cavitary Lung Adenocarcinoma

    Jiangyong Liu1,#,*, Mingming Gu2,#, Yang Xue1, Qiong Wang3, Yong Ren3, Wencai Huang1,*

    Oncologie, Vol.23, No.3, pp. 439-452, 2021, DOI:10.32604/oncologie.2021.017220 - 26 September 2021

    Abstract Cavitary lung cancer is a rare type of lung cancer. Generally, the relationship between cavitary lung adenocarcinoma (LUAD) and specific immune checkpoints remains unknown. In this study, we aimed to detect the expression of programmed cell death ligand-1(PD-L1) and the density of CD8-positive (CD8+) tumor-infiltrating lymphocytes (TILs) to evaluate their clinicopathological significance in the case of patients with cavitary LUAD. This study included 65 patients with cavitary LUAD. Patient specimens were obtained from surgery. The expression of PD-L1 protein and CD8+ TIL status was detected by traditional immunohistochemistry and multiplex quantitative immunofluorescence technology. The correlation of… More >

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