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  • Open Access

    ARTICLE

    Oncolytic adenovirus H101 enhances the anti-tumor effects of PD-1 blockade via CD47 downregulation in tumor cells

    CHENXIAO QIAO1, YIPENG XU2, YEDIE HE2, ZHIJIAN CAI1,*, HUA WANG2,*

    Oncology Research, Vol.33, No.5, pp. 1161-1172, 2025, DOI:10.32604/or.2024.055746 - 18 April 2025

    Abstract Objective: To investigate the anti-tumor effects of an E1B55KD-deleted oncolytic adenovirus, H101, in combination with a humanized anti-PD-1 (Programmed cell death protein 1) monoclonal antibody, Camrelizumab. Methods: Anti-tumor efficacy of intratumoral injection of H101 or/and intraperitoneal injection of Camrelizumab were evaluated in an immune system humanized NOD Prkdcscid Il2rg-/- mice subcutaneous (S.C.) tumor model, established with human glioblastoma of unknown origin cell line U87-MG, and human bladder cancer cell line T24 and YTS-1. The mechanism by which H101 induced anti-tumor immunity were also investigated. Results: Combining H101 with Camrelizumab demonstrated more potent anti-tumor effects than monotherapy in… More >

  • Open Access

    ARTICLE

    Biochanin A, as the Lrg1/TGF-β/Smad2 pathway blockade, attenuates blood-brain barrier damage after cerebral ischemia-reperfusion by modulating leukocyte migration patterns

    LONGSHENG FU1, JINFANG HU1, FENG SHAO2, YAOQI WU1, WEI BAI3, MINGJIN JIANG3, HAO CHEN4, LIHUA CHEN2, YANNI LV1,*

    BIOCELL, Vol.47, No.8, pp. 1869-1883, 2023, DOI:10.32604/biocell.2023.028602 - 28 August 2023

    Abstract Background: Biochanin A is an excellent dietary isoflavone that has the concomitant function of both medicine and foodstuff. The attenuation function of biochanin A on blood-brain barrier (BBB) damage induced by cerebral ischemia-reperfusion remains unclear. Methods: C57BL/6 mice were subjected to 1 h middle cerebral artery occlusion (MCAO) followed by 24 h reperfusion. The infarct volume of the brain was stained by TTC, while leakage of the brain was quantitatively stained by Evans blue, and the neurologic deficit score was measured. Microglial-induced morphologic changes were observed via immunofluorescence staining, and rolling and adhering leukocytes in… 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

    ARTICLE

    CD103+ Cell Growth Factor Flt3L Enhances the Efficacy of Immune Checkpoint Blockades in Murine Glioblastoma Model

    Xiaolin Miao*1, Yiqi Chen*1, Ke Hao†1, Meiqin Zheng, Bingyu Chen, Kaiqiang Li, Ying Wang, Wei Zhang§, Yu Zhang§, Xiaozhou Mou§, Shanshan Jiang, Zhen Wang‡§

    Oncology Research, Vol.26, No.2, pp. 173-182, 2018, DOI:10.3727/096504017X14841698396865

    Abstract Glioblastoma is a lethal disease featuring a high proliferation of tumor cells, excessive angiogenesis, and heavy drug resistance. The overall survival of glioblastoma patients has been dismal, even with an intensive standard of care. Recent advances in immune checkpoint blockades are changing the treatment of cancers. However, the efficacy of immune checkpoint blockades in glioblastoma is still unclear. Here we investigated the roles of CD103+ cells in regulating the effect of immune checkpoint blockades in glioblastoma mouse models. Our findings indicated that the murine glioblastoma model was not sensitive to immune checkpoint blockades. Flt3L, a growth More >

  • Open Access

    ARTICLE

    Fibroblast Activation Protein-α-Positive Fibroblasts Promote Gastric Cancer Progression and Resistance to Immune Checkpoint Blockade

    Xuyang Wen*, Xiaoping He, Feng Jiao, Chunhui Wang§, Yang Sun, Xuequn Ren, Qianwen Li*

    Oncology Research, Vol.25, No.4, pp. 629-640, 2017, DOI:10.3727/096504016X14768383625385

    Abstract Gastric cancer (GC) is one of the main causes of cancer death. The tumor microenvironment has a profound effect on inducing tumor growth, metastasis, and immunosuppression. Fibroblast activation protein-a (FAP) is a protein that is usually expressed in fibroblasts, such as cancer-associated fibroblasts, which are major components of the tumor microenvironment. However, the role of FAP in GC progression and treatment is still unknown. In this study, we explored these problems based on GC patient samples and experimental models. We found that high FAP expression was an independent prognosticator of poor survival in GC patients. More >

  • Open Access

    MEETING REVIEW

    Risks, benefits, and approaches to hormonal blockade in prostate cancer
    Highlights from the European Association of Urology Meeting, March 20-24, 2015, Madrid, Spain

    Jack Barkin

    Canadian Journal of Urology, Vol.22, No.3, pp. 7847-7852, 2015

    Abstract Several abstracts presented at the 2015 European Association of Urology Meeting highlighted new developments in hormone therapy for prostate cancer management. One abstract described how the luteinizing hormone-releasing hormone (LHRH)/gonadotropin-releasing hormone (GnRH) agonist leuprolide, but not the LHRH/GnRH antagonist degarelix, induced plaque instability in a mouse model. A second abstract showed that in patients with a history of severe cardiovascular disease, degarelix was associated with fewer cardiovascular events than treatment with an LHRH agonist. A third abstract showed how primary androgen-deprivation therapy was linked with increased all-cause mortality in a US registry. A fourth abstract More >

  • Open Access

    ARTICLE

    Long term zoledronic acid during androgen blockade for prostate cancer

    Richard Casey1, Zsuzsanna Gesztesi1, Joseph Rochford2

    Canadian Journal of Urology, Vol.17, No.3, pp. 5170-5177, 2010

    Abstract Objectives: To evaluate the effect of zoledronic acid on androgen deprivation therapy in patients with hormone-sensitive prostate cancer by measuring the percentage change in lumbar-spine bone mineral density (BMD) at 12 and 24 months.
    Materials and methods: An open-label, multicenter, randomized, two-phase study was conducted in patients with hormone-sensitive prostate cancer (N = 200) receiving 10.8 mg goserelin acetate with or without zoledronic acid (4 mg intravenously) every 3 months. In phase I, patients were randomized to goserelin acetate alone or goserelin acetate plus zoledronic acid for 12 months. In phase II, patients receiving goserelin acetate plus… More >

  • Open Access

    ARTICLE

    Effectiveness of Maximal Androgen Blockade (MAB): illusion or reality?

    Hideyuki Akaza

    Canadian Journal of Urology, Vol.12, Suppl.1, pp. 77-80, 2005

    Abstract Two decades have passed since the concept of Maximal Androgen Blockade (MAB) was first applied to the clinical treatment of prostate cancer. The theory is that by cutting off the supply of androgen from the adrenal gland, androgen blockade of the prostate could be made more complete. However, to date the clinical benefit of MAB has failed to live up to the theoretically expected effect. Having said that, fundamental research and clinical trials in recent years do indicate that the benefit of MAB is not merely an illusion. More >

  • Open Access

    ARTICLE

    An oncology perspective on the benefits and cost of combined androgen blockade in advanced prostate cancer

    Armen G Aprikian1, Neil Fleshner2, Adrian Langleben3, Jeffrey Hames4

    Canadian Journal of Urology, Vol.10, No.5, pp. 1986-1994, 2003

    Abstract Objectives: To provide context in oncology for the significance of the benefits and cost of combined androgen blockade (CAB) in the treatment of advanced prostate cancer.
    Methods: Canadian drug costs for the survival benefit with CAB in advanced prostate cancer were compared with the costs of benefit with new treatments in advanced non-small-cell lung cancer (NSCLC), metastatic colorectal cancer, and metastatic breast cancer. Clinical toxicities were also compared.
    Results: The survival benefit with CAB in advanced prostate cancer appears to be approximately 3 months. The survival benefit with the addition of vinorelbine to cisplatin for the treatment of… More >

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