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Chen J, Zhao Y, Wang X, Zang L, Yin D, Tan S. Hyperoside Inhibits RNF8-mediated Nuclear Translocation of β-catenin to Repress PD-L1 Expression and Prostate Cancer. Anticancer Agents Med Chem 2024; 24:464-476. [PMID: 38305391 DOI: 10.2174/0118715206289246240110044931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 12/30/2023] [Accepted: 01/03/2024] [Indexed: 02/03/2024]
Abstract
BACKGROUND Hyperoside is a flavonol glycoside isolated from Hypericum perforatum L. that has inhibitory effects on cancer cells; however, its effects on prostate cancer (PCa) remain unclear. Therefore, we studied the anti-PCa effects of hyperoside and its underlying mechanisms in vitro and in vivo. AIM This study aimed to explore the mechanism of hyperoside in anti-PCa. METHODS 3-(4,5-Dimethyl-2-Thiazolyl)-2,5-Diphenyl Tetrazolium Bromide (MTT), transwell, and flow cytometry assays were used to detect PCa cell growth, invasion, and cell apoptosis. Immunoblot analysis, immunofluorescence, immunoprecipitation, and quantitative real-time PCR (qRT-PCR) were used to analyze the antitumor mechanism of hyperoside. RESULTS Hyperoside inhibited PCa cell growth, invasion, and cell cycle and induced cell apoptosis. Furthermore, RING finger protein 8 (RNF8), an E3 ligase that assembles K63 polyubiquitination chains, was predicted to be a direct target of hyperoside and was downregulated by hyperoside. Downregulation of RNF8 by hyperoside impeded the nuclear translocation of β-catenin and disrupted the Wnt/β-catenin pathway, which reduced the expression of the target genes c-myc, cyclin D1, and programmed death ligand 1 (PD-L1). Decreased PD-L1 levels contributed to induced immunity in Jurkat cells in vitro. Finally, in vivo studies demonstrated that hyperoside significantly reduced tumor size, inhibited PD-L1 and RNF8 expression, and induced apoptosis in tumor tissues of a subcutaneous mouse model. CONCLUSION Hyperoside exerts its anti-PCa effect by reducing RNF8 protein, inhibiting nuclear translocation of β-catenin, and disrupting the Wnt/β-catenin pathway, in turn reducing the expression of PD-L1 and improving Jurkat cell immunity.
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Affiliation(s)
- Jie Chen
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, Anhui, 230012, China
| | - Yi Zhao
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, Anhui, 230012, China
| | - Xiaoli Wang
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, Anhui, 230012, China
| | - Long Zang
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, Anhui, 230012, China
| | - Dengke Yin
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, Anhui, 230012, China
| | - Song Tan
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, Anhui, 230012, China
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Atiq MO, Pastor DM, Karzai F, Hankin AR, Turkbey B, Cordes LM, Brownell I, Liu Y, Chesnut GT, Madan RA. First-line pembrolizumab plus androgen deprivation therapy for locally advanced microsatellite instability-high prostate cancer in a patient with Muir-Torre syndrome: A case report. Front Oncol 2023; 13:1126476. [PMID: 36937405 PMCID: PMC10022659 DOI: 10.3389/fonc.2023.1126476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Accepted: 02/16/2023] [Indexed: 03/06/2023] Open
Abstract
The risks of development of colorectal and endometrial cancers in individuals with Lynch syndrome (LS) are well known and have been widely studied. In recent years, the potential association of other malignancies, including prostate cancer, with LS has been considered. Decision-making regarding screening for prostate cancer in the generalized population can be complicated; accounting for the possibility of a higher risk of cancer conferred by a potential genetic predisposition confounds the creation of salient guidelines even further. Although tissue-agnostic treatment approvals have been granted to several immune checkpoint inhibitors (ICIs) for their use in the treatment of subsets of patients whose tumors exhibit high levels of microsatellite instability or high tumor mutational burden, a paucity of data exists regarding the use of ICIs in the first line treatment of patients with locally advanced prostate cancer harboring these features. A significant reduction in tumor volume in response to the combination of immune checkpoint inhibition and androgen deprivation therapy is described in this report of a male with Muir-Torre syndrome who was found to have locally advanced adenocarcinoma of the prostate. While anecdotal, the anti-tumor activity of this combination of therapy is notable and calls attention to the importance of considering further investigation of the use of immune checkpoint blockade as a primary therapeutic option in patients with localized prostate cancer.
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Affiliation(s)
- Mohammad O. Atiq
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, United States
| | - Danielle M. Pastor
- Center for Immuno-Oncology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, United States
- *Correspondence: Danielle M. Pastor,
| | - Fatima Karzai
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, United States
| | - Amy R. Hankin
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, United States
| | - Baris Turkbey
- Molecular Imaging Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, United States
| | - Lisa M. Cordes
- Center for Immuno-Oncology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, United States
| | - Isaac Brownell
- Center for Immuno-Oncology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, United States
- Dermatology Branch, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Yi Liu
- Genetics Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, United States
| | - Gregory T. Chesnut
- Urology Service, Department of Surgery, Walter Reed National Military Medical Center, Bethesda, MD, United States
- Center for Prostate Disease Research, Murtha Cancer Center Research Program, Department of Surgery, Uniformed Services University of the Health Sciences, Bethesda, MD, United States
| | - Ravi A. Madan
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, United States
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Glud EN, Rasmussen M, Zhang Y, Mandrup OA, Salachan PV, Borre M, Sørensen KD, Howard KA. Identification of a high-risk immunogenic prostate cancer patient subset as candidates for T-cell engager immunotherapy and the introduction of a novel albumin-fused anti-CD3 × anti-PSMA bispecific design. Br J Cancer 2022; 127:2186-2197. [PMID: 36243890 PMCID: PMC9727128 DOI: 10.1038/s41416-022-01994-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 09/14/2022] [Accepted: 09/16/2022] [Indexed: 01/29/2023] Open
Abstract
BACKGROUND Cancer immunotherapies such as bispecific T-cell engagers have seen limited adoption in prostate cancer (PC), possibly due to differing levels of cancer receptor expression and effector T-cell infiltration between patients and inherent defects in T-cell engager design. METHODS CD8+ T-cell infiltration and PSMA expression were determined by RNA sequencing of primary PC tissue samples from 126 patients with localised PC and 17 patients with metastatic PC. Prognostic value was assessed through clinical parameters, including CAPRA-S risk score. A panel of albumin-fused anti-CD3 × anti-PSMA T-cell engagers with different neonatal Fc receptor (FcRn) affinity were characterised by flow cytometry, Bio-Layer Interferometry and functional cellular assays. RESULTS A subset of patients with localised (30/126 = 24%) and metastatic (10/17 = 59%) PC showed both high PSMA expression and high CD8+ T-cell enrichment. The High/High phenotype in localised PC associated with a clinically high-risk cancer subtype, confirmed in an external patient cohort (n = 550, PRAD/TCGA). The T-cell engagers exhibited tunable FcRn-driven cellular recycling, CD3 and PSMA cellular engagement, T-cell activation and PSMA level-dependent cellular cytotoxicity. CONCLUSION This work presents an albumin-fused bispecific T-cell engager with programmable FcRn engagement and identifies a high-risk PC patient subset as candidates for treatment with the T-cell engager class of immuno-oncology biologics.
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Affiliation(s)
- Eske N. Glud
- grid.7048.b0000 0001 1956 2722Interdisciplinary Nanoscience Center (iNANO), Department of Molecular Biology and Genetics, Aarhus University, 8000 Aarhus, Denmark
| | - Martin Rasmussen
- grid.7048.b0000 0001 1956 2722Department of Molecular Medicine, Aarhus University Hospital & Department of Clinical Medicine, Aarhus University, 8200 Aarhus, Denmark
| | - Yonghui Zhang
- grid.7048.b0000 0001 1956 2722Interdisciplinary Nanoscience Center (iNANO), Department of Molecular Biology and Genetics, Aarhus University, 8000 Aarhus, Denmark
| | - Ole A. Mandrup
- grid.7048.b0000 0001 1956 2722Interdisciplinary Nanoscience Center (iNANO), Department of Molecular Biology and Genetics, Aarhus University, 8000 Aarhus, Denmark
| | - Paul Vinu Salachan
- grid.7048.b0000 0001 1956 2722Department of Molecular Medicine, Aarhus University Hospital & Department of Clinical Medicine, Aarhus University, 8200 Aarhus, Denmark
| | - Michael Borre
- grid.7048.b0000 0001 1956 2722Department of Urology, Aarhus University Hospital & Department of Clinical Medicine, Aarhus University, 8200 Aarhus, Denmark
| | - Karina Dalsgaard Sørensen
- grid.7048.b0000 0001 1956 2722Department of Molecular Medicine, Aarhus University Hospital & Department of Clinical Medicine, Aarhus University, 8200 Aarhus, Denmark
| | - Kenneth A. Howard
- grid.7048.b0000 0001 1956 2722Interdisciplinary Nanoscience Center (iNANO), Department of Molecular Biology and Genetics, Aarhus University, 8000 Aarhus, Denmark
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