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Fieni C, Sorrentino C, Ciummo SL, Fontana A, Lotti LV, Scialis S, Calvo Garcia D, Caulo M, Di Carlo E. Immunoliposome-based targeted delivery of the CRISPR/Cas9gRNA-IL30 complex inhibits prostate cancer and prolongs survival. Exp Mol Med 2024:10.1038/s12276-024-01310-2. [PMID: 39232121 DOI: 10.1038/s12276-024-01310-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Revised: 06/20/2024] [Accepted: 06/24/2024] [Indexed: 09/06/2024] Open
Abstract
The development of selective and nontoxic immunotherapy targeting prostate cancer (PC) is challenging. Interleukin (IL)30 plays immunoinhibitory and oncogenic roles in PC, and its tumor-specific suppression may have significant clinical implications. CRISPR/Cas9-mediated IL30 gene deletion in PC xenografts using anti-PSCA antibody-driven lipid nanocomplexes (Cas9gRNA-hIL30-PSCA NxPs) revealed significant genome editing efficiency and circulation stability without off-target effects or organ toxicity. Biweekly intravenous administration of Cas9gRNA-hIL30-PSCA NxPs to PC-bearing mice inhibited tumor growth and metastasis and improved survival. Mechanistically, Cas9gRNA-hIL30-PSCA NxPs suppressed ANGPTL 1/2/4, IL1β, CCL2, CXCL1/6, SERPINE1-F1, EFNB2, PLG, PF4, VEGFA, VEGFD, ANG, TGFβ1, EGF and HGF expression in human PC cells while upregulated CDH1, DKK3 and PTEN expression, leading to low proliferation and extensive ischemic necrosis. In the syngeneic PC model, IL30-targeting immunoliposomes downregulated NFKB1 expression and prevented intratumoral influx of CD11b+Gr-1+MDCs, Foxp3+Tregs, and NKp46+RORγt+ILC3, and prolonged host survival by inhibiting tumor progression. This study serves as a proof of principle that immunoliposome-based targeted delivery of Cas9gRNA-IL30 represent a potentially safe and effective strategy for PC treatment.
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Affiliation(s)
- Cristiano Fieni
- Department of Medicine and Sciences of Aging, "G. d'Annunzio" University of Chieti-Pescara, 66100, Chieti, Italy
- Anatomic Pathology and Immuno-Oncology Unit, Center for Advanced Studies and Technology (CAST), "G. d'Annunzio" University of Chieti-Pescara, 66100, Chieti, Italy
| | - Carlo Sorrentino
- Department of Medicine and Sciences of Aging, "G. d'Annunzio" University of Chieti-Pescara, 66100, Chieti, Italy
- Anatomic Pathology and Immuno-Oncology Unit, Center for Advanced Studies and Technology (CAST), "G. d'Annunzio" University of Chieti-Pescara, 66100, Chieti, Italy
| | - Stefania Livia Ciummo
- Department of Medicine and Sciences of Aging, "G. d'Annunzio" University of Chieti-Pescara, 66100, Chieti, Italy
- Anatomic Pathology and Immuno-Oncology Unit, Center for Advanced Studies and Technology (CAST), "G. d'Annunzio" University of Chieti-Pescara, 66100, Chieti, Italy
| | - Antonella Fontana
- Department of Pharmacy, "G. d'Annunzio" University of Chieti-Pescara, 66100, Chieti, Italy
- UDA-TECHLAB Research Center, "G. d'Annunzio" University of Chieti-Pescara, 66100, Chieti, Italy
| | | | - Sofia Scialis
- Anatomic Pathology and Immuno-Oncology Unit, Center for Advanced Studies and Technology (CAST), "G. d'Annunzio" University of Chieti-Pescara, 66100, Chieti, Italy
| | - Darien Calvo Garcia
- Department of Neuroscience, Imaging and Clinical Sciences, "G. d'Annunzio" University of Chieti-Pescara, 66100, Chieti, Italy
- Institute for Advanced Biomedical Technologies (ITAB), "G. d'Annunzio" University of Chieti-Pescara, 66100, Chieti, Italy
| | - Massimo Caulo
- Department of Neuroscience, Imaging and Clinical Sciences, "G. d'Annunzio" University of Chieti-Pescara, 66100, Chieti, Italy
- Institute for Advanced Biomedical Technologies (ITAB), "G. d'Annunzio" University of Chieti-Pescara, 66100, Chieti, Italy
| | - Emma Di Carlo
- Department of Medicine and Sciences of Aging, "G. d'Annunzio" University of Chieti-Pescara, 66100, Chieti, Italy.
- Anatomic Pathology and Immuno-Oncology Unit, Center for Advanced Studies and Technology (CAST), "G. d'Annunzio" University of Chieti-Pescara, 66100, Chieti, Italy.
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Chu X, Shin S, Baek DS, Zhang L, Conard A, Shi M, Kim YJ, Adams C, Hines M, Liu X, Chen C, Sun Z, Jelev DV, Mellors JW, Dimitrov DS, Li W. Discovery of a novel highly specific, fully human PSCA antibody and its application as an antibody-drug conjugate in prostate cancer. MAbs 2024; 16:2387240. [PMID: 39113562 PMCID: PMC11312989 DOI: 10.1080/19420862.2024.2387240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 07/25/2024] [Accepted: 07/29/2024] [Indexed: 08/11/2024] Open
Abstract
Prostate stem cell antigen (PSCA) is expressed in all stages of prostate cancer, including in advanced androgen-independent tumors and bone metastasis. PSCA may associate with prostate carcinogenesis and lineage plasticity in prostate cancer. PSCA is also a promising theranostic marker for a variety of other solid tumors, including pancreatic adenocarcinoma and renal cell carcinoma. Here, we identified a novel fully human PSCA antibody using phage display methodology. The structure-based affinity maturation yielded a high-affinity binder, F12, which is highly specific and does not bind to 6,000 human membrane proteins based on a membrane proteome array assay. F12 targets PSCA amino acids 63-69 as tested by the peptide scanning microarray, and it cross-reacts with the murine PSCA. IgG1 F12 efficiently internalizes into PSCA-expressing tumor cells. The antimitotic reagent monomethyl auristatin E (MMAE)-conjugated IgG1 F12 (ADC, F12-MMAE) exhibits dose-dependent efficacy and specificity in a human prostate cancer PC-3-PSCA xenograft NSG mouse model. This is a first reported ADC based on a fully human PSCA antibody and MMAE that is characterized in a xenograft murine model, which warrants further optimizations and investigations in additional preclinical tumor models, including prostate and other solid tumors.
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Affiliation(s)
- Xiaojie Chu
- Center for Antibody Therapeutics, Division of Infectious Diseases, Department of Medicine, University of Pittsburgh Medical School, Pittsburgh, PA, USA
| | - Seungmin Shin
- Center for Antibody Therapeutics, Division of Infectious Diseases, Department of Medicine, University of Pittsburgh Medical School, Pittsburgh, PA, USA
| | | | - Liyong Zhang
- Hillman Cancer Center, University of Pittsburgh, Pittsburgh, PA, USA
| | | | - Megan Shi
- Computational and System Biology, School of Medicine, University of Pittsburgh, Pittsburgh, USA
| | | | | | - Maggie Hines
- Center for Antibody Therapeutics, Division of Infectious Diseases, Department of Medicine, University of Pittsburgh Medical School, Pittsburgh, PA, USA
| | - Xianglei Liu
- Center for Antibody Therapeutics, Division of Infectious Diseases, Department of Medicine, University of Pittsburgh Medical School, Pittsburgh, PA, USA
| | - Chuan Chen
- Center for Antibody Therapeutics, Division of Infectious Diseases, Department of Medicine, University of Pittsburgh Medical School, Pittsburgh, PA, USA
| | | | - Dontcho V. Jelev
- Center for Antibody Therapeutics, Division of Infectious Diseases, Department of Medicine, University of Pittsburgh Medical School, Pittsburgh, PA, USA
| | - John W. Mellors
- Center for Antibody Therapeutics, Division of Infectious Diseases, Department of Medicine, University of Pittsburgh Medical School, Pittsburgh, PA, USA
- GLPG, Pittsburgh, PA, USA
| | - Dimiter S. Dimitrov
- Center for Antibody Therapeutics, Division of Infectious Diseases, Department of Medicine, University of Pittsburgh Medical School, Pittsburgh, PA, USA
- GLPG, Pittsburgh, PA, USA
| | - Wei Li
- Center for Antibody Therapeutics, Division of Infectious Diseases, Department of Medicine, University of Pittsburgh Medical School, Pittsburgh, PA, USA
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3
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Zhao H, Han R, Wang Z, Xian J, Bai X. Colorectal Cancer Stem Cells and Targeted Agents. Pharmaceutics 2023; 15:2763. [PMID: 38140103 PMCID: PMC10748092 DOI: 10.3390/pharmaceutics15122763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 11/30/2023] [Accepted: 12/07/2023] [Indexed: 12/24/2023] Open
Abstract
Since their discovery, cancer stem cells have become a hot topic in cancer therapy research. These cells possess stem cell-like self-renewal and differentiation capacities and are important factors that dominate cancer metastasis, therapy-resistance and recurrence. Worse, their inherent characteristics make them difficult to eliminate. Colorectal cancer is the third-most common cancer and the second leading cause of cancer death worldwide. Targeting colorectal cancer stem cells (CR-CSCs) can inhibit colorectal cancer metastasis, enhance therapeutic efficacy and reduce recurrence. Here, we introduced the origin, biomarker proteins, identification, cultivation and research techniques of CR-CSCs, and we summarized the signaling pathways that regulate the stemness of CR-CSCs, such as Wnt, JAK/STAT3, Notch and Hh signaling pathway. In addition to these, we also reviewed recent anti-CR-CSC drugs targeting signaling pathways, biomarkers and other regulators. These will help researchers gain insight into the current agents targeting to CR-CSCs, explore new cancer drugs and propose potential therapies.
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Affiliation(s)
- Haobin Zhao
- Department of General Practice, People’s Hospital of Longhua, 38 Jinglong Jianshe Road, Shenzhen 518109, China; (H.Z.); (J.X.)
- Endocrinology Department, People’s Hospital of Longhua, 38 Jinglong Jianshe Road, Shenzhen 518109, China
| | - Ruining Han
- Obstetric Department, The Eighth Affiliated Hospital, Sun Yat-Sen University, Shenzhen 518033, China;
| | - Zhankun Wang
- Emergency Department, People’s Hospital of Longhua, 38 Jinglong Jianshe Road, Shenzhen 518109, China;
| | - Junfang Xian
- Department of General Practice, People’s Hospital of Longhua, 38 Jinglong Jianshe Road, Shenzhen 518109, China; (H.Z.); (J.X.)
| | - Xiaosu Bai
- Endocrinology Department, People’s Hospital of Longhua, 38 Jinglong Jianshe Road, Shenzhen 518109, China
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Striese F, Neuber C, Gräßel S, Arndt C, Ullrich M, Steinbach J, Pietzsch J, Bergmann R, Pietzsch HJ, Sihver W, Frenz M, Feldmann A, Bachmann MP. Preclinical Characterization of the 177Lu-Labeled Prostate Stem Cell Antigen (PSCA)-Specific Monoclonal Antibody 7F5. Int J Mol Sci 2023; 24:ijms24119420. [PMID: 37298374 DOI: 10.3390/ijms24119420] [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: 04/26/2023] [Revised: 05/20/2023] [Accepted: 05/23/2023] [Indexed: 06/12/2023] Open
Abstract
Prostate specific membrane antigen (PSMA) is an excellent target for imaging and treatment of prostate carcinoma (PCa). Unfortunately, not all PCa cells express PSMA. Therefore, alternative theranostic targets are required. The membrane protein prostate stem cell antigen (PSCA) is highly overexpressed in most primary prostate carcinoma (PCa) cells and in metastatic and hormone refractory tumor cells. Moreover, PSCA expression positively correlates with tumor progression. Therefore, it represents a potential alternative theranostic target suitable for imaging and/or radioimmunotherapy. In order to support this working hypothesis, we conjugated our previously described anti-PSCA monoclonal antibody (mAb) 7F5 with the bifunctional chelator CHX-A″-DTPA and subsequently radiolabeled it with the theranostic radionuclide 177Lu. The resulting radiolabeled mAb ([177Lu]Lu-CHX-A″-DTPA-7F5) was characterized both in vitro and in vivo. It showed a high radiochemical purity (>95%) and stability. The labelling did not affect its binding capability. Biodistribution studies showed a high specific tumor uptake compared to most non-targeted tissues in mice bearing PSCA-positive tumors. Accordingly, SPECT/CT images revealed a high tumor-to-background ratios from 16 h to 7 days after administration of [177Lu]Lu-CHX-A″-DTPA-7F5. Consequently, [177Lu]Lu-CHX-A″-DTPA-7F5 represents a promising candidate for imaging and in the future also for radioimmunotherapy.
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Affiliation(s)
- Franziska Striese
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Radiopharmaceutical Cancer Research, 01328 Dresden, Germany
- School of Science, Faculty of Chemistry and Food Chemistry, Technical University Dresden, 01062 Dresden, Germany
| | - Christin Neuber
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Radiopharmaceutical Cancer Research, 01328 Dresden, Germany
| | - Sandy Gräßel
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Radiopharmaceutical Cancer Research, 01328 Dresden, Germany
- School of Science, Faculty of Chemistry and Food Chemistry, Technical University Dresden, 01062 Dresden, Germany
| | - Claudia Arndt
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Radiopharmaceutical Cancer Research, 01328 Dresden, Germany
| | - Martin Ullrich
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Radiopharmaceutical Cancer Research, 01328 Dresden, Germany
| | - Jörg Steinbach
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Radiopharmaceutical Cancer Research, 01328 Dresden, Germany
- School of Science, Faculty of Chemistry and Food Chemistry, Technical University Dresden, 01062 Dresden, Germany
| | - Jens Pietzsch
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Radiopharmaceutical Cancer Research, 01328 Dresden, Germany
- School of Science, Faculty of Chemistry and Food Chemistry, Technical University Dresden, 01062 Dresden, Germany
| | - Ralf Bergmann
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Radiopharmaceutical Cancer Research, 01328 Dresden, Germany
- Institute of Biophysics and Radiation Biology, Semmelweis University, 1094 Budapest, Hungary
| | - Hans-Jürgen Pietzsch
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Radiopharmaceutical Cancer Research, 01328 Dresden, Germany
| | - Wiebke Sihver
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Radiopharmaceutical Cancer Research, 01328 Dresden, Germany
| | - Marcus Frenz
- Faculty of Informatik and Wirtschaftsinformatik, Provadis School of International Management and Technology AG, 65926 Frankfurt, Germany
| | - Anja Feldmann
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Radiopharmaceutical Cancer Research, 01328 Dresden, Germany
| | - Michael P Bachmann
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Radiopharmaceutical Cancer Research, 01328 Dresden, Germany
- National Center for Tumor Diseases (UCC/NCT), Partner Site Dresden, 01307 Dresden, Germany
- German Cancer Consortium (DKTK), Partner Site Dresden and German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany
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5
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Ramesh S, Selvakumar P, Ameer MY, Lian S, Abdullah Alzarooni AIM, Ojha S, Mishra A, Tiwari A, Kaushik A, Jung YD, Chouaib S, Lakshmanan VK. State-of-the-art therapeutic strategies for targeting cancer stem cells in prostate cancer. Front Oncol 2023; 13:1059441. [PMID: 36969009 PMCID: PMC10035756 DOI: 10.3389/fonc.2023.1059441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Accepted: 01/30/2023] [Indexed: 03/11/2023] Open
Abstract
The development of new therapeutic strategies is on the increase for prostate cancer stem cells, owing to current standardized therapies for prostate cancer, including chemotherapy, androgen deprivation therapy (ADT), radiotherapy, and surgery, often failing because of tumor relapse ability. Ultimately, tumor relapse develops into advanced castration-resistant prostate cancer (CRPC), which becomes an irreversible and systemic disease. Hence, early identification of the intracellular components and molecular networks that promote prostate cancer is crucial for disease management and therapeutic intervention. One of the potential therapeutic methods for aggressive prostate cancer is to target prostate cancer stem cells (PCSCs), which appear to be a primary focal point of cancer metastasis and recurrence and are resistant to standardized therapies. PCSCs have also been documented to play a major role in regulating tumorigenesis, sphere formation, and the metastasis ability of prostate cancer with their stemness features. Therefore, the current review highlights the origin and identification of PCSCs and their role in anti-androgen resistance, as well as stemness-related signaling pathways. In addition, the review focuses on the current advanced therapeutic strategies for targeting PCSCs that are helping to prevent prostate cancer initiation and progression, such as microRNAs (miRNAs), nanotechnology, chemotherapy, immunotherapy, the clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR-associated protein 9 (Cas9) gene-editing system, and photothermal ablation (PTA) therapy.
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Affiliation(s)
- Saravanan Ramesh
- Prostate Cancer Biomarker Laboratory, Faculty of Clinical Research, Sri Ramachandra Institute of Higher Education and Research, Chennai, India
| | - Preethi Selvakumar
- Prostate Cancer Biomarker Laboratory, Faculty of Clinical Research, Sri Ramachandra Institute of Higher Education and Research, Chennai, India
| | - Mohamed Yazeer Ameer
- Prostate Cancer Biomarker Laboratory, Faculty of Clinical Research, Sri Ramachandra Institute of Higher Education and Research, Chennai, India
| | - Sen Lian
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong, China
| | | | - Shreesh Ojha
- Department of Pharmacology and Therapeutics, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Anshuman Mishra
- Translational Research & Sustainable Healthcare Management, Institute of Advanced Materials, IAAM, Ulrika, Sweden
| | - Ashutosh Tiwari
- Translational Research & Sustainable Healthcare Management, Institute of Advanced Materials, IAAM, Ulrika, Sweden
| | - Ajeet Kaushik
- NanoBioTech Laboratory, Department of Environmental Engineering, Florida Polytechnic University, Lakeland, FL, United States
- School of Engineering, University of Petroleum and Energy Studies (UPES), Dehradun, India
| | - Young Do Jung
- Department of Biochemistry, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Salem Chouaib
- Thumbay Research Institute for Precision Medicine, Gulf Medical University, Ajman, United Arab Emirates
- INSERM UMR1186, Integrative Tumor Immunology and Genetic Oncology, Gustave Roussy, Equipe Labellisée par la Ligue Contre le Cancer, EPHE, Faculté de Médecine, Université Paris-Sud, Université Paris-Saclay, Villejuif, France
| | - Vinoth-Kumar Lakshmanan
- Prostate Cancer Biomarker Laboratory, Faculty of Clinical Research, Sri Ramachandra Institute of Higher Education and Research, Chennai, India
- Translational Research & Sustainable Healthcare Management, Institute of Advanced Materials, IAAM, Ulrika, Sweden
- *Correspondence: Vinoth-Kumar Lakshmanan,
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Jugel W, Tietze S, Daeg J, Appelhans D, Broghammer F, Aigner A, Karimov M, Schackert G, Temme A. Targeted Transposition of Minicircle DNA Using Single-Chain Antibody Conjugated Cyclodextrin-Modified Poly (Propylene Imine) Nanocarriers. Cancers (Basel) 2022; 14:cancers14081925. [PMID: 35454835 PMCID: PMC9027598 DOI: 10.3390/cancers14081925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 04/04/2022] [Accepted: 04/06/2022] [Indexed: 02/05/2023] Open
Abstract
Among non-viral vectors, cationic polymers, such as poly(propylene imine) (PPI), play a prominent role in nucleic acid delivery. However, limitations of polycationic polymer-based DNA delivery systems are (i) insufficient target specificity, (ii) unsatisfactory transgene expression, and (iii) undesired transfer of therapeutic DNA into non-target cells. We developed single-chain antibody fragment (scFv)-directed hybrid polyplexes for targeted gene therapy of prostate stem cell antigen (PSCA)-positive tumors. Besides mono-biotinylated PSCA-specific single-chain antibodies (scFv(AM1-P-BAP)) conjugated to neutravidin, the hybrid polyplexes comprise β-cyclodextrin-modified PPI as well as biotin/maltose-modified PPI as carriers for minicircle DNAs encoding for Sleeping Beauty transposase and a transposon encoding the gene of interest. The PSCA-specific hybrid polyplexes efficiently delivered a GFP gene in PSCA-positive tumor cells, whereas control hybrid polyplexes showed low gene transfer efficiency. In an experimental gene therapy approach, targeted transposition of a codon-optimized p53 into p53-deficient HCT116p53-/-/PSCA cells demonstrated decreased clonogenic survival when compared to mock controls. Noteworthily, p53 transposition in PTEN-deficient H4PSCA glioma cells caused nearly complete loss of clonogenic survival. These results demonstrate the feasibility of combining tumor-targeting hybrid polyplexes and Sleeping Beauty gene transposition, which, due to the modular design, can be extended to other target genes and tumor entities.
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Affiliation(s)
- Willi Jugel
- Department of Neurosurgery, Section Experimental Neurosurgery and Tumor Immunology, University Hospital Carl Gustav Carus, TU Dresden, Fetscherstraße 74, 01307 Dresden, Germany; (W.J.); (S.T.); (F.B.); (G.S.)
| | - Stefanie Tietze
- Department of Neurosurgery, Section Experimental Neurosurgery and Tumor Immunology, University Hospital Carl Gustav Carus, TU Dresden, Fetscherstraße 74, 01307 Dresden, Germany; (W.J.); (S.T.); (F.B.); (G.S.)
| | - Jennifer Daeg
- Leibniz Institute of Polymer Research Dresden e.V., Mailbox 120411, 01069 Dresden, Germany; (J.D.); (D.A.)
| | - Dietmar Appelhans
- Leibniz Institute of Polymer Research Dresden e.V., Mailbox 120411, 01069 Dresden, Germany; (J.D.); (D.A.)
| | - Felix Broghammer
- Department of Neurosurgery, Section Experimental Neurosurgery and Tumor Immunology, University Hospital Carl Gustav Carus, TU Dresden, Fetscherstraße 74, 01307 Dresden, Germany; (W.J.); (S.T.); (F.B.); (G.S.)
| | - Achim Aigner
- Rudolf-Boehm-Institute for Pharmacology and Toxicology, Clinical Pharmacology, Faculty of Medicine, University of Leipzig, 04107 Leipzig, Germany; (A.A.); (M.K.)
| | - Michael Karimov
- Rudolf-Boehm-Institute for Pharmacology and Toxicology, Clinical Pharmacology, Faculty of Medicine, University of Leipzig, 04107 Leipzig, Germany; (A.A.); (M.K.)
| | - Gabriele Schackert
- Department of Neurosurgery, Section Experimental Neurosurgery and Tumor Immunology, University Hospital Carl Gustav Carus, TU Dresden, Fetscherstraße 74, 01307 Dresden, Germany; (W.J.); (S.T.); (F.B.); (G.S.)
- German Cancer Consortium (DKTK), Partner Site Dresden, 01307 Dresden, Germany
- German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany
- National Center for Tumor Diseases (NCT), 01307 Dresden, Germany
| | - Achim Temme
- Department of Neurosurgery, Section Experimental Neurosurgery and Tumor Immunology, University Hospital Carl Gustav Carus, TU Dresden, Fetscherstraße 74, 01307 Dresden, Germany; (W.J.); (S.T.); (F.B.); (G.S.)
- German Cancer Consortium (DKTK), Partner Site Dresden, 01307 Dresden, Germany
- German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany
- National Center for Tumor Diseases (NCT), 01307 Dresden, Germany
- Correspondence: ; Tel.: +49-3514587011
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7
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Dorff TB, Narayan V, Forman SJ, Zang PD, Fraietta JA, June CH, Haas NB, Priceman SJ. Novel Redirected T-Cell Immunotherapies for Advanced Prostate Cancer. Clin Cancer Res 2022; 28:576-584. [PMID: 34675084 PMCID: PMC8866199 DOI: 10.1158/1078-0432.ccr-21-1483] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 07/21/2021] [Accepted: 09/13/2021] [Indexed: 01/07/2023]
Abstract
Immunotherapy has failed to achieve durable remissions in advanced prostate cancer patients. More potent T-cell-redirecting strategies may be needed to overcome the immunologically exclusive and suppressive tumor microenvironment. Clinical trials are underway, seeking to define the optimal target for T-cell redirection, such as PSMA, PSCA, or STEAP-1, as well as the optimal strategy, with CAR or bispecific antibodies. As results continue to emerge from these trials, understanding differential toxicity and efficacy of these therapies based on their targets and functional modifications will be key to advancing these promising therapies toward clinical practice. This review provides a unique depth and breadth of perspective regarding the diverse immunotherapy strategies currently under clinical investigation for men with advanced prostate cancer.
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Affiliation(s)
- Tanya B. Dorff
- Department of Medical Oncology and Therapeutics Research, City of Hope Comprehensive Cancer Center, Duarte, California
| | - Vivek Narayan
- Division of Hematology/Medical Oncology, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Stephen J. Forman
- Department of Hematology and Hematopoietic Cell Transplantation, City of Hope Comprehensive Cancer Center, Duarte, California
| | - Peter D. Zang
- University of Southern California, Los Angeles, California
| | - Joseph A. Fraietta
- Center for Cellular Immunotherapies, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Carl H. June
- Center for Cellular Immunotherapies, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Naomi B. Haas
- Division of Hematology/Medical Oncology, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Saul J. Priceman
- Department of Hematology and Hematopoietic Cell Transplantation, City of Hope Comprehensive Cancer Center, Duarte, California
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8
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Abstract
Chimeric antigen receptor (CAR) T cell immunotherapy involves the genetic modification of the patient's own T cells so that they specifically recognize and destroy tumour cells. Considerable clinical success has been achieved using this technique in patients with lymphoid malignancies, but clinical studies that investigated treating solid tumours using this emerging technology have been disappointing. A number of developments might be able to increase the efficacy of CAR T cell therapy for treatment of prostate cancer, including improved trafficking to the tumour, techniques to overcome the immunosuppressive tumour microenvironment, as well as methods to enhance CAR T cell persistence, specificity and safety. Furthermore, CAR T cell therapy has the potential to be combined with other treatment modalities, such as androgen deprivation therapy, radiotherapy or chemotherapy, and could be applied as focal CAR T cell therapy for prostate cancer.
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Targeted RNAi of BIRC5/Survivin Using Antibody-Conjugated Poly(Propylene Imine)-Based Polyplexes Inhibits Growth of PSCA-Positive Tumors. Pharmaceutics 2021; 13:pharmaceutics13050676. [PMID: 34066833 PMCID: PMC8151203 DOI: 10.3390/pharmaceutics13050676] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Revised: 04/30/2021] [Accepted: 05/04/2021] [Indexed: 11/17/2022] Open
Abstract
Delivery of siRNAs for the treatment of tumors critically depends on the development of efficient nucleic acid carrier systems. The complexation of dendritic polymers (dendrimers) results in nanoparticles, called dendriplexes, that protect siRNA from degradation and mediate non-specific cellular uptake of siRNA. However, large siRNA doses are required for in vivo use due to accumulation of the nanoparticles in sinks such as the lung, liver, and spleen. This suggests the exploration of targeted nanoparticles for enhancing tumor cell specificity and achieving higher siRNA levels in tumors. In this work, we report on the targeted delivery of a therapeutic siRNA specific for BIRC5/Survivin in vitro and in vivo to tumor cells expressing the surface marker prostate stem cell antigen (PSCA). For this, polyplexes consisting of single-chain antibody fragments specific for PSCA conjugated to siRNA/maltose-modified poly(propylene imine) dendriplexes were used. These polyplexes were endocytosed by PSCA-positive 293TPSCA/ffLuc and PC3PSCA cells and caused knockdown of reporter gene firefly luciferase and Survivin expression, respectively. In a therapeutic study in PC3PSCA xenograft-bearing mice, significant anti-tumor effects were observed upon systemic administration of the targeted polyplexes. This indicates superior anti-tumor efficacy when employing targeted delivery of Survivin-specific siRNA, based on the additive effects of siRNA-mediated Survivin knockdown in combination with scFv-mediated PSCA inhibition.
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10
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Heitmann JS, Pfluegler M, Jung G, Salih HR. Bispecific Antibodies in Prostate Cancer Therapy: Current Status and Perspectives. Cancers (Basel) 2021; 13:549. [PMID: 33535627 PMCID: PMC7867165 DOI: 10.3390/cancers13030549] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 01/24/2021] [Accepted: 01/26/2021] [Indexed: 12/29/2022] Open
Abstract
Prostate carcinoma (PC) is the second most common cancer in men. When the disease becomes unresponsive to androgen deprivation therapy, the remaining treatment options are of limited benefit. Despite intense efforts, none of the T cell-based immunotherapeutic strategies that meanwhile have become a cornerstone for treatment of other malignancies is established in PC. This refers to immune checkpoint inhibition (CI), which generally reinforces T cell immunity as well as chimeric antigen receptor T (CAR-T) cells and bispecific antibodies (bsAbs) that stimulate the T cell receptor/CD3-complex and mobilize T cells in a targeted manner. In general, compared to CAR-T cells, bsAb would have the advantage of being an "off the shelf" reagent associated with less preparative effort, but at present, despite enormous efforts, neither CAR-T cells nor bsAbs are successful in solid tumors. Here, we focus on the various bispecific constructs that are presently in development for treatment of PC, and discuss underlying concepts and the state of clinical evaluation as well as future perspectives.
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Affiliation(s)
- Jonas S. Heitmann
- Clinical Collaboration Unit Translational Immunology, German Cancer Consortium (DKTK), Department of Internal Medicine, University Hospital Tübingen, 72076 Tübingen, Germany; (J.S.H.); (M.P.)
- DFG Cluster of Excellence 2180 “Image-Guided and Functional Instructed Tumor Therapy” (IFIT), University of Tübingen, 72076 Tübingen, Germany;
| | - Martin Pfluegler
- Clinical Collaboration Unit Translational Immunology, German Cancer Consortium (DKTK), Department of Internal Medicine, University Hospital Tübingen, 72076 Tübingen, Germany; (J.S.H.); (M.P.)
- DFG Cluster of Excellence 2180 “Image-Guided and Functional Instructed Tumor Therapy” (IFIT), University of Tübingen, 72076 Tübingen, Germany;
- Department of Immunology, Interfaculty Institute for Cell Biology, University of Tübingen, 72076 Tübingen, Germany
| | - Gundram Jung
- DFG Cluster of Excellence 2180 “Image-Guided and Functional Instructed Tumor Therapy” (IFIT), University of Tübingen, 72076 Tübingen, Germany;
- Department of Immunology, Interfaculty Institute for Cell Biology, University of Tübingen, 72076 Tübingen, Germany
- German Cancer Consortium (DKTK), DKFZ Partner Site Tübingen, 72076 Tübingen, Germany
| | - Helmut R. Salih
- Clinical Collaboration Unit Translational Immunology, German Cancer Consortium (DKTK), Department of Internal Medicine, University Hospital Tübingen, 72076 Tübingen, Germany; (J.S.H.); (M.P.)
- DFG Cluster of Excellence 2180 “Image-Guided and Functional Instructed Tumor Therapy” (IFIT), University of Tübingen, 72076 Tübingen, Germany;
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11
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Kumar K, Ghosh A. Radiochemistry, Production Processes, Labeling Methods, and ImmunoPET Imaging Pharmaceuticals of Iodine-124. Molecules 2021; 26:E414. [PMID: 33466827 PMCID: PMC7830191 DOI: 10.3390/molecules26020414] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 01/07/2021] [Accepted: 01/07/2021] [Indexed: 01/01/2023] Open
Abstract
Target-specific biomolecules, monoclonal antibodies (mAb), proteins, and protein fragments are known to have high specificity and affinity for receptors associated with tumors and other pathological conditions. However, the large biomolecules have relatively intermediate to long circulation half-lives (>day) and tumor localization times. Combining superior target specificity of mAbs and high sensitivity and resolution of the PET (Positron Emission Tomography) imaging technique has created a paradigm-shifting imaging modality, ImmunoPET. In addition to metallic PET radionuclides, 124I is an attractive radionuclide for radiolabeling of mAbs as potential immunoPET imaging pharmaceuticals due to its physical properties (decay characteristics and half-life), easy and routine production by cyclotrons, and well-established methodologies for radioiodination. The objective of this report is to provide a comprehensive review of the physical properties of iodine and iodine radionuclides, production processes of 124I, various 124I-labeling methodologies for large biomolecules, mAbs, and the development of 124I-labeled immunoPET imaging pharmaceuticals for various cancer targets in preclinical and clinical environments. A summary of several production processes, including 123Te(d,n)124I, 124Te(d,2n)124I, 121Sb(α,n)124I, 123Sb(α,3n)124I, 123Sb(3He,2n)124I, natSb(α, xn)124I, natSb(3He,n)124I reactions, a detailed overview of the 124Te(p,n)124I reaction (including target selection, preparation, processing, and recovery of 124I), and a fully automated process that can be scaled up for GMP (Good Manufacturing Practices) production of large quantities of 124I is provided. Direct, using inorganic and organic oxidizing agents and enzyme catalysis, and indirect, using prosthetic groups, 124I-labeling techniques have been discussed. Significant research has been conducted, in more than the last two decades, in the development of 124I-labeled immunoPET imaging pharmaceuticals for target-specific cancer detection. Details of preclinical and clinical evaluations of the potential 124I-labeled immunoPET imaging pharmaceuticals are described here.
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Affiliation(s)
- Krishan Kumar
- Laboratory for Translational Research in Imaging Pharmaceuticals, The Wright Center of Innovation in Biomedical Imaging, Department of Radiology, The Ohio State University, Columbus, OH 43212, USA;
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12
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Mantesso S, Geerts D, Spanholtz J, Kučerová L. Genetic Engineering of Natural Killer Cells for Enhanced Antitumor Function. Front Immunol 2020; 11:607131. [PMID: 33391277 PMCID: PMC7772419 DOI: 10.3389/fimmu.2020.607131] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Accepted: 11/18/2020] [Indexed: 12/22/2022] Open
Abstract
Natural Killer (NK) cells are unique immune cells capable of efficient killing of infected and transformed cells. Indeed, NK cell-based therapies induced response against hematological malignancies in the absence of adverse toxicity in clinical trials. Nevertheless, adoptive NK cell therapies are reported to have exhibited poor outcome against many solid tumors. This can be mainly attributed to limited infiltration of NK cells into solid tumors, downregulation of target antigens on the tumor cells, or suppression by the chemokines and secreted factors present within the tumor microenvironment. Several methods for genetic engineering of NK cells were established and consistently improved over the last decade, leading to the generation of novel NK cell products with enhanced anti-tumor activity and improved tumor homing. New generations of engineered NK cells are developed to better target refractory tumors and/or to overcome inhibitory tumor microenvironment. This review summarizes recent improvements in approaches to NK cell genetic engineering and strategies implemented to enhance NK cell effector functions.
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Affiliation(s)
- Simone Mantesso
- Research and Development, Glycostem Therapeutics, Oss, Netherlands
| | - Dirk Geerts
- Research and Development, Glycostem Therapeutics, Oss, Netherlands
| | - Jan Spanholtz
- Research and Development, Glycostem Therapeutics, Oss, Netherlands
| | - Lucia Kučerová
- Research and Development, Glycostem Therapeutics, Oss, Netherlands
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13
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Andrea AE, Chiron A, Bessoles S, Hacein-Bey-Abina S. Engineering Next-Generation CAR-T Cells for Better Toxicity Management. Int J Mol Sci 2020; 21:E8620. [PMID: 33207607 PMCID: PMC7696189 DOI: 10.3390/ijms21228620] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 11/09/2020] [Accepted: 11/13/2020] [Indexed: 02/07/2023] Open
Abstract
Immunoadoptive therapy with genetically modified T lymphocytes expressing chimeric antigen receptors (CARs) has revolutionized the treatment of patients with hematologic cancers. Although clinical outcomes in B-cell malignancies are impressive, researchers are seeking to enhance the activity, persistence, and also safety of CAR-T cell therapy-notably with a view to mitigating potentially serious or even life-threatening adverse events like on-target/off-tumor toxicity and (in particular) cytokine release syndrome. A variety of safety strategies have been developed by replacing or adding various components (such as OFF- and ON-switch CARs) or by combining multi-antigen-targeting OR-, AND- and NOT-gate CAR-T cells. This research has laid the foundations for a whole new generation of therapeutic CAR-T cells. Here, we review the most promising CAR-T cell safety strategies and the corresponding preclinical and clinical studies.
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Affiliation(s)
- Alain E. Andrea
- Laboratoire de Biochimie et Thérapies Moléculaires, Faculté de Pharmacie, Université Saint Joseph de Beyrouth, Beirut 1100, Lebanon;
| | - Andrada Chiron
- Université de Paris, CNRS, INSERM, UTCBS, Unité des Technologies Chimiques et Biologiques pour la Santé, F-75006 Paris, France; (A.C.); (S.B.)
- Clinical Immunology Laboratory, Groupe Hospitalier Universitaire Paris-Sud, Hôpital Kremlin-Bicêtre, Assistance Publique-Hôpitaux de Paris, 94275 Le-Kremlin-Bicêtre, France
| | - Stéphanie Bessoles
- Université de Paris, CNRS, INSERM, UTCBS, Unité des Technologies Chimiques et Biologiques pour la Santé, F-75006 Paris, France; (A.C.); (S.B.)
| | - Salima Hacein-Bey-Abina
- Université de Paris, CNRS, INSERM, UTCBS, Unité des Technologies Chimiques et Biologiques pour la Santé, F-75006 Paris, France; (A.C.); (S.B.)
- Clinical Immunology Laboratory, Groupe Hospitalier Universitaire Paris-Sud, Hôpital Kremlin-Bicêtre, Assistance Publique-Hôpitaux de Paris, 94275 Le-Kremlin-Bicêtre, France
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14
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The Correlation between PSCA Expression and Neuroendocrine Differentiation in Prostate Cancer. BIOMED RESEARCH INTERNATIONAL 2020; 2020:5395312. [PMID: 33029516 PMCID: PMC7532369 DOI: 10.1155/2020/5395312] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 08/02/2020] [Accepted: 08/19/2020] [Indexed: 11/17/2022]
Abstract
The prostate stem cell antigen (PSCA), as a predominantly prostate-specific marker, is overexpressed in most prostate cancer specimens, is positively correlated with prostate cancer androgen independence, and has the potential to be treated with castration-resistant prostate cancer (CRPC) as a gene therapy target. Using the typical androgen deprivation therapy, most tumors will progress to CRPC, as well as develop into neuroendocrine prostate cancer (NEPC) characterized by the expression of neuroendocrine markers such as enolase 2 (NSE). Our study was aimed at investigating the expressions of PSCA and NSE and the relationship between the two markers, as well as the correlation between the PSCA and NSE expressions and the clinicopathological parameters in prostate cancer specimens from 118 patients by using immunohistochemistry. Our results demonstrated that the PSCA and NSE protein expressions did not correlate with the prostate cancer patients' age or the hormone therapy but showed a significant correlation with the pathological tumor stage of prostate cancer, the Gleason score, and the presence of metastasis. There is a positive association between PSCA and NSE but a negative one between the prostate-specific antigen (PSA) and PSCA or between PSA and NSE. High PSCA and NSE expressions correlated with a poor prognosis in prostate cancer patients. PSCA may play an important role in the progression of neuroendocrine prostate cancer (NEPC).
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15
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Czerwińska M, Bilewicz A, Kruszewski M, Wegierek-Ciuk A, Lankoff A. Targeted Radionuclide Therapy of Prostate Cancer-From Basic Research to Clinical Perspectives. Molecules 2020; 25:E1743. [PMID: 32290196 PMCID: PMC7181060 DOI: 10.3390/molecules25071743] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 03/23/2020] [Accepted: 04/07/2020] [Indexed: 12/18/2022] Open
Abstract
Prostate cancer is the most commonly diagnosed malignancy in men and the second leading cause of cancer-related deaths in Western civilization. Although localized prostate cancer can be treated effectively in different ways, almost all patients progress to the incurable metastatic castration-resistant prostate cancer. Due to the significant mortality and morbidity rate associated with the progression of this disease, there is an urgent need for new and targeted treatments. In this review, we summarize the recent advances in research on identification of prostate tissue-specific antigens for targeted therapy, generation of highly specific and selective molecules targeting these antigens, availability of therapeutic radionuclides for widespread medical applications, and recent achievements in the development of new-generation small-molecule inhibitors and antibody-based strategies for targeted prostate cancer therapy with alpha-, beta-, and Auger electron-emitting radionuclides.
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Affiliation(s)
- Malwina Czerwińska
- Centre for Radiobiology and Biological Dosimetry, Institute of Nuclear Chemistry and Technology, Dorodna 16, 03-195 Warsaw, Poland; (M.C.); (M.K.)
| | - Aleksander Bilewicz
- Centre of Radiochemistry and Nuclear Chemistry, Institute of Nuclear Chemistry and Technology, Dorodna 16, 03-195 Warsaw, Poland;
| | - Marcin Kruszewski
- Centre for Radiobiology and Biological Dosimetry, Institute of Nuclear Chemistry and Technology, Dorodna 16, 03-195 Warsaw, Poland; (M.C.); (M.K.)
- Department of Molecular Biology and Translational Research, Institute of Rural Health, Jaczewskiego 2, 20-090 Lublin, Poland
| | - Aneta Wegierek-Ciuk
- Department of Medical Biology, Institute of Biology, Jan Kochanowski University, Uniwersytecka 7, 24-406 Kielce, Poland;
| | - Anna Lankoff
- Centre for Radiobiology and Biological Dosimetry, Institute of Nuclear Chemistry and Technology, Dorodna 16, 03-195 Warsaw, Poland; (M.C.); (M.K.)
- Department of Medical Biology, Institute of Biology, Jan Kochanowski University, Uniwersytecka 7, 24-406 Kielce, Poland;
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16
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Nassir AM. A piece in prostate cancer puzzle: Future perspective of novel molecular signatures. Saudi J Biol Sci 2020; 27:1148-1154. [PMID: 32256177 PMCID: PMC7105665 DOI: 10.1016/j.sjbs.2020.02.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2019] [Revised: 01/26/2020] [Accepted: 02/01/2020] [Indexed: 12/24/2022] Open
Abstract
Prostate cancer (PCa) has a variable biological potential. It constitutes the second most common cancer amongst men worldwide and the fifth most common cancer in Saudi Arabia. Identifying men at higher risk of developing PCa, differentiating indolent from aggressive disease and predicting the likelihood of progression will improve decision-making and selection for active surveillance protocols. Biomarkers have been utilized for PCa screening and predicting cancer behavior and response to treatment. The prostate specific antigen (PSA) screening helps detect PCa in early stages, while implementing a plan for management and outcome. However, PSA screening is still controversial, due to the risks of over diagnosis and treatment, and its inability to detect a good proportion of advanced tumors. Alternatively, a new era of PCa biomarkers has emerged with higher PCa specificity than PSA and its isoforms hopefully improving screening methods, such as Prostate Health Index (PHI) score, Progensa Prostate Cancer Antigen 3 (PCA3), Mi-Prostate Score (MiPS), Prostate Stem Cell Antigen (PSCA), 4Kscore test, and Urokinase Plasminogen Activation (uPA and uPAR). Few novel biomarkers have shown promise in preliminary results. This review will display promising biomarkers including some important FDA approved ones, highlighting their clinical implication and future place in the PCa puzzle, along with addressing their current limitations.
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Affiliation(s)
- Anmar M Nassir
- Department of Surgery, Umm Al-Qura University, Makkah, Saudi Arabia.,Department of Urology, King Abdullah Medical City, Makkah, Saudi Arabia
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17
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Gamache RF, Zettlitz KA, Tsai WTK, Collins J, Wu AM, Murphy JM. Tri-functional platform for construction of modular antibody fragments for in vivo 18F-PET or NIRF molecular imaging. Chem Sci 2020; 11:1832-1838. [PMID: 34123276 PMCID: PMC8148382 DOI: 10.1039/c9sc05007h] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Positron emission tomography (PET) molecular imaging is a powerful tool for interrogating physiological and biochemical processes to understand the biology of disease and advance therapeutic developments. Near-infrared fluorescence (NIRF) optical imaging has become increasingly popular for intraoperative staging to enable cellular resolution imaging of tumor margins during surgical resection. In addition, engineered antibody fragments have emerged as promising molecular imaging agents given their exquisite target selectivity, rapid systemic clearance and site-selective chemical modification. We report a tri-functional platform for construction of a modular antibody fragment that can rapidly be labeled with radionuclides or fluorophores for PET or NIRF molecular imaging of prostate stem cell antigen (PSCA). To provide a universal approach towards the targeted delivery of PET and optical imaging agents, we have developed a tri-functional platform (TFP) for the facile construction of modular, target-specific tracers.![]()
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Affiliation(s)
- Raymond F Gamache
- Department of Chemistry and Biochemistry, University of California Los Angeles CA 90095 USA
| | - Kirstin A Zettlitz
- Department of Molecular and Medical Pharmacology and Crump Institute for Molecular Imaging, David Geffen School of Medicine, University of California Los Angeles CA 90095 USA
| | - Wen-Ting K Tsai
- Department of Molecular and Medical Pharmacology and Crump Institute for Molecular Imaging, David Geffen School of Medicine, University of California Los Angeles CA 90095 USA
| | - Jeffrey Collins
- Department of Molecular and Medical Pharmacology and Crump Institute for Molecular Imaging, David Geffen School of Medicine, University of California Los Angeles CA 90095 USA
| | - Anna M Wu
- Department of Molecular and Medical Pharmacology and Crump Institute for Molecular Imaging, David Geffen School of Medicine, University of California Los Angeles CA 90095 USA
| | - Jennifer M Murphy
- Department of Molecular and Medical Pharmacology and Crump Institute for Molecular Imaging, David Geffen School of Medicine, University of California Los Angeles CA 90095 USA
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18
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Zhao Z, Li E, Luo L, Zhao S, Liu L, Wang J, Kang R, Luo J. A PSCA/PGRN–NF-κB–Integrin–α4 Axis Promotes Prostate Cancer Cell Adhesion to Bone Marrow Endothelium and Enhances Metastatic Potential. Mol Cancer Res 2019; 18:501-513. [PMID: 31722969 DOI: 10.1158/1541-7786.mcr-19-0278] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 09/13/2019] [Accepted: 11/07/2019] [Indexed: 11/16/2022]
Affiliation(s)
- Zhigang Zhao
- Department of Urology and Andrology, The First Affiliated Hospital of Guangzhou Medical University; Guangdong Provincial Key Laboratory of Urology, Guangzhou, Guangdong Province, China.
| | - Ermao Li
- Medical school, University of South China, Hengyang, Hunan Province, China
| | - Lianmin Luo
- Department of Urology and Andrology, The First Affiliated Hospital of Guangzhou Medical University; Guangdong Provincial Key Laboratory of Urology, Guangzhou, Guangdong Province, China
| | - Shankun Zhao
- Department of Urology and Andrology, The First Affiliated Hospital of Guangzhou Medical University; Guangdong Provincial Key Laboratory of Urology, Guangzhou, Guangdong Province, China
| | - Luhao Liu
- Department of organ transplantation, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong Province, China
| | - Jiamin Wang
- Department of Urology and Andrology, The First Affiliated Hospital of Guangzhou Medical University; Guangdong Provincial Key Laboratory of Urology, Guangzhou, Guangdong Province, China
| | - Ran Kang
- Department of Urology, The First Affiliated Hospital of University of South China, Hengyang, Hunan Province, China
| | - Jintai Luo
- Department of Urology and Andrology, The First Affiliated Hospital of Guangzhou Medical University; Guangdong Provincial Key Laboratory of Urology, Guangzhou, Guangdong Province, China
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19
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Han J, Gao F, Geng S, Ye X, Wang T, Du P, Cai Z, Fu Z, Zhao Z, Shi L, Li Q, Cai J. Minicircle DNA-Engineered CAR T Cells Suppressed Tumor Growth in Mice. Mol Cancer Ther 2019; 19:178-186. [PMID: 31582530 DOI: 10.1158/1535-7163.mct-19-0204] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 07/04/2019] [Accepted: 09/27/2019] [Indexed: 11/16/2022]
Abstract
Viral-based chimeric antigen receptor-engineered T (CAR T)-cell manufacturing has potential safety risks and relatively high costs. The nonviral minicircle DNA (mcDNA) is safer for patients, cheaper to produce, and may be a more suitable technique to generate CAR T cells. In this study, we produced mcDNA-based CAR T cells specifically targeting prostate stem cell antigen (PSCA; mcDNA-PSCA-CAR T cells). Our results showed that mcDNA-PSCA-CAR T cells persisted in mouse peripheral blood as long as 28 days and demonstrated more CAR T-cell infiltration, higher cytokine secretion levels, and better antitumor effects. Together, our results suggest that mcDNA-CAR can be a safe and cost-effective platform to produce CAR T cells.
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Affiliation(s)
- Jinsheng Han
- Department of Surgery, Hebei Medical University, Shijiazhuang, Hebei, China
| | - Fei Gao
- Department of Surgery, Hebei Medical University, Shijiazhuang, Hebei, China.,Department of Surgery and Oncology, Hebei General Hospital, Shijiazhuang, Hebei, China
| | - Songsong Geng
- Hebei Engineering Technology Research Center for Cell Therapy, Hebei HOFOY Biotech Company Ltd., Shijiazhuang, Hebei, China
| | - Xueshuai Ye
- Department of Surgery, Hebei Medical University, Shijiazhuang, Hebei, China.,Hebei Engineering Technology Research Center for Cell Therapy, Hebei HOFOY Biotech Company Ltd., Shijiazhuang, Hebei, China
| | - Tie Wang
- Department of Surgery, Hebei Cangzhou Hospital of Integrated Traditional Chinese and Western Medicine, Cangzhou, Hebei, China
| | - Pingping Du
- Hebei Engineering Technology Research Center for Cell Therapy, Hebei HOFOY Biotech Company Ltd., Shijiazhuang, Hebei, China
| | - Ziqi Cai
- Hebei Engineering Technology Research Center for Cell Therapy, Hebei HOFOY Biotech Company Ltd., Shijiazhuang, Hebei, China
| | - Zexian Fu
- Hebei Engineering Technology Research Center for Cell Therapy, Hebei HOFOY Biotech Company Ltd., Shijiazhuang, Hebei, China.,Department of Surgery, Affiliated Hospital of Hebei Engineering University, Handan, Hebei, China
| | - Zhilong Zhao
- Hebei Engineering Technology Research Center for Cell Therapy, Hebei HOFOY Biotech Company Ltd., Shijiazhuang, Hebei, China.,Department of Surgery, the Third Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning, China
| | - Long Shi
- Hebei Engineering Technology Research Center for Cell Therapy, Hebei HOFOY Biotech Company Ltd., Shijiazhuang, Hebei, China.,Department of Oncology, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Qingxia Li
- Department of Surgery and Oncology, Hebei General Hospital, Shijiazhuang, Hebei, China
| | - Jianhui Cai
- Department of Surgery, Hebei Medical University, Shijiazhuang, Hebei, China. .,Department of Surgery and Oncology, Hebei General Hospital, Shijiazhuang, Hebei, China.,Hebei Engineering Technology Research Center for Cell Therapy, Hebei HOFOY Biotech Company Ltd., Shijiazhuang, Hebei, China
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20
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Abedi S, Doosti A, Jami MS. Evaluation of the preventive and therapeutic effects of a recombinant vector co-expressing prostate-specific stem cell antigen and Clostridium perfringens enterotoxin on prostate cancer in rats. Biotechnol Prog 2019; 36:e2906. [PMID: 31513734 DOI: 10.1002/btpr.2906] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 08/23/2019] [Accepted: 09/09/2019] [Indexed: 12/21/2022]
Abstract
The effects of Clostridium perfringens enterotoxin (CPE) and prostate stem cell antigen (PSCA) on cancer prevention or treatment have been previously studied separately. For the first time, here we have elaborated a recombinant vector to co-express and study the cumulative effects of both of these factors on prostate cancer (PCa) in an animal model. The recombinant pBudCE4.1-cpe-PSCA vector was constructed in large scale. Rats were vaccinated by vector or vector plus chitosan nanoparticles before or after induction of PCa (preventive or therapeutic studies) by N-methyl N-nitrosurea and testosterone. Prostate tumors were weighed and histologically examined. Tumors and infusion site tissues as well as blood samples of all rats were collected and assessed by serological and molecular tests. We showed that vaccination with vector (along with or without nanoparticles) led to lower PCa incidence and tumor weight. The L-1β, IL6, and TNF-α serum levels and their gene expression accompanied by C-CAM1 gene expression in vaccinated groups were significantly higher than controls while no difference was seen in CK20 expression among all groups. Our findings showed that vector could effectively stimulate the immune system of rats to either prevent or suppress the PCa tumors. Adding chitosan nanoparticles did not affect the results significantly.
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Affiliation(s)
- Saied Abedi
- Department of Biology, Faculty of Basic Sciences, Shahrekord Branch, Islamic Azad University, Shahrekord, Iran
| | - Abbas Doosti
- Biotechnology Research Center, Shahrekord Branch, Islamic Azad University, Shahrekord, Iran
| | - Mohammad-Saied Jami
- Cellular and Molecular Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran.,Department Neurology, David Geffen School of Medicine, University of California, Los Angeles, California
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21
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Young RM, Phelan JD, Shaffer AL, Wright GW, Huang DW, Schmitz R, Johnson C, Oellerich T, Wilson W, Staudt LM. Taming the Heterogeneity of Aggressive Lymphomas for Precision Therapy. ANNUAL REVIEW OF CANCER BIOLOGY-SERIES 2019. [DOI: 10.1146/annurev-cancerbio-030518-055734] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Genomic analyses of diffuse large B cell lymphoma (DLBCL) are revealing the genetic and phenotypic heterogeneity of these aggressive lymphomas. In part, this heterogeneity reflects the existence of distinct genetic subtypes that acquire characteristic constellations of somatic genetic alterations to converge on the DLBCL phenotype. In parallel, functional genomic screens and proteomic analyses have identified multiprotein assemblies that coordinate oncogenic survival signaling in DLBCL. In this review, we merge these recent insights into a unified conceptual framework with implications for the design of precision medicine trials in DLBCL.
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Affiliation(s)
- Ryan M. Young
- Lymphoid Malignancies Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20892, USA
| | - James D. Phelan
- Lymphoid Malignancies Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20892, USA
| | - Arthur L. Shaffer
- Lymphoid Malignancies Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20892, USA
| | - George W. Wright
- Biometric Research Branch, Division of Cancer Diagnosis and Treatment, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20892, USA
| | - Da Wei Huang
- Lymphoid Malignancies Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20892, USA
| | - Roland Schmitz
- Lymphoid Malignancies Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20892, USA
| | - Calvin Johnson
- Office of Intramural Research, Center for Information Technology, National Institutes of Health, Bethesda, Maryland 20892, USA
| | - Thomas Oellerich
- Lymphoid Malignancies Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20892, USA
| | - Wyndham Wilson
- Lymphoid Malignancies Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20892, USA
| | - Louis M. Staudt
- Lymphoid Malignancies Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20892, USA
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22
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Targeted delivery of TLR3 agonist to tumor cells with single chain antibody fragment-conjugated nanoparticles induces type I-interferon response and apoptosis. Sci Rep 2019; 9:3299. [PMID: 30824859 PMCID: PMC6397204 DOI: 10.1038/s41598-019-40032-8] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Accepted: 02/07/2019] [Indexed: 12/14/2022] Open
Abstract
Application of Toll-like receptor (TLR) agonists is a promising approach to treat cancer. In particular, nucleic acid-based TLR agonists such as short ssRNA and dsRNA molecules, which activate endosomal TLRs, can be delivered to tumors by use of nanoparticle delivery systems. However, such delivery systems bear unspecific side effects and poor pharmacokinetics. To overcome these limitations we developed a system for targeted delivery of a 50 bp dsRNA TLR3 agonist (Riboxxol) to treat PSCA-positive tumor cells, which consists of neutravidin conjugated to mono-biotinylated dsRNA and to humanized mono-biotinylated anti-PSCA single chain antibody derivative scFv(h-AM1)-BAP. The assembly of the components resulted in the formation of nanoparticle-like immunoconjugates designated Rapid Inducer of Cellular Inflammation and Apoptosis (RICIA). Anti-PSCA-RICIA exclusively delivered Riboxxol to PSCA-positive tumor cells as well as subcutaneous tumors. Uptake of anti-PSCA-RICIA induced a type I-interferon response and apoptosis in HEK-BluehTLR3/PSCA reporter cells and PSCA-positive HT1376 bladder cancer cells in vitro. No such effects were observed when using RICIA coupled to an unspecific control antibody or when using Riboxxol alone. Treatment of HT1376 xenografts in immune-deficient hosts with targeted delivery of TLR3 agonist did not induce adverse effects and only modestly inhibited tumor growth when compared to controls. These results suggest promising activation of innate immune response and apoptosis upon selective delivery of TLR3 agonists in tumor cells. Yet, further studies using syngeneic and orthotopic tumor models are needed to fully exploit the potential of RICIA immunoconjugates.
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23
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van der Toom EE, Axelrod HD, de la Rosette JJ, de Reijke TM, Pienta KJ, Valkenburg KC. Prostate-specific markers to identify rare prostate cancer cells in liquid biopsies. Nat Rev Urol 2019; 16:7-22. [PMID: 30479377 DOI: 10.1038/s41585-018-0119-5] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Despite improvements in early detection and advances in treatment, patients with prostate cancer continue to die from their disease. Minimal residual disease after primary definitive treatment can lead to relapse and distant metastases, and increasing evidence suggests that circulating tumour cells (CTCs) and bone marrow-derived disseminated tumour cells (BM-DTCs) can offer clinically relevant biological insights into prostate cancer dissemination and metastasis. Using epithelial markers to accurately detect CTCs and BM-DTCs is associated with difficulties, and prostate-specific markers are needed for the detection of these cells using rare cell assays. Putative prostate-specific markers have been identified, and an optimized strategy for staining rare cancer cells from liquid biopsies using these markers is required. The ideal prostate-specific marker will be expressed on every CTC or BM-DTC throughout disease progression (giving high sensitivity) and will not be expressed on non-prostate-cancer cells in the sample (giving high specificity). Some markers might not be specific enough to the prostate to be used as individual markers of prostate cancer cells, whereas others could be truly prostate-specific and would make ideal markers for use in rare cell assays. The goal of future studies is to use sensitive and specific prostate markers to consistently and reliably identify rare cancer cells.
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Affiliation(s)
| | - Haley D Axelrod
- The James Buchanan Brady Urological Institute, Baltimore, MD, USA.,Graduate Program in Cellular and Molecular Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | | | | | - Kenneth J Pienta
- The James Buchanan Brady Urological Institute, Baltimore, MD, USA
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24
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Kloess S, Kretschmer A, Stahl L, Fricke S, Koehl U. CAR-Expressing Natural Killer Cells for Cancer Retargeting. Transfus Med Hemother 2019; 46:4-13. [PMID: 31244577 DOI: 10.1159/000495771] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Accepted: 11/23/2018] [Indexed: 12/15/2022] Open
Abstract
Since the approval in 2017 and the outstanding success of Kymriah® and Yescarta®, the number of clinical trials investigating the safety and efficacy of chimeric antigen receptor-modified autologous T cells has been constantly rising. Currently, more than 200 clinical trials are listed on clinicaltrial.gov. In contrast to CAR-T cells, natural killer (NK) cells can be used from allogeneic donors as an "off the shelf product" and provide alternative candidates for cancer retargeting. This review summarises preclinical results of CAR-engineered NK cells using both primary human NK cells and the cell line NK-92, and provides an overview about the first clinical CAR-NK cell studies targeting haematological malignancies and solid tumours, respectively.
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Affiliation(s)
- Stephan Kloess
- Fraunhofer Institute for Cell Therapy and Immunology (IZI), Leipzig, Germany.,Institute for Cellular Therapeutics, ATMP-GMPDU, Hannover Medical School, Hannover, Germany
| | - Anna Kretschmer
- Fraunhofer Institute for Cell Therapy and Immunology (IZI), Leipzig, Germany
| | - Lilly Stahl
- Fraunhofer Institute for Cell Therapy and Immunology (IZI), Leipzig, Germany
| | - Stephan Fricke
- Fraunhofer Institute for Cell Therapy and Immunology (IZI), Leipzig, Germany
| | - Ulrike Koehl
- Fraunhofer Institute for Cell Therapy and Immunology (IZI), Leipzig, Germany.,Institute of Clinical Immunology, Faculty of Medicine, University Leipzig, Leipzig, Germany.,Institute for Cellular Therapeutics, ATMP-GMPDU, Hannover Medical School, Hannover, Germany
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25
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Tsai WK, Zettlitz KA, Tavaré R, Kobayashi N, Reiter RE, Wu AM. Dual-Modality ImmunoPET/Fluorescence Imaging of Prostate Cancer with an Anti-PSCA Cys-Minibody. Am J Cancer Res 2018; 8:5903-5914. [PMID: 30613270 PMCID: PMC6299441 DOI: 10.7150/thno.27679] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Accepted: 09/04/2018] [Indexed: 01/01/2023] Open
Abstract
Inadequate diagnostic methods for prostate cancer lead to over- and undertreatment, and the inability to intraoperatively visualize positive margins may limit the success of surgical resection. Prostate cancer visualization could be improved by combining the complementary modalities of immuno-positron emission tomography (immunoPET) for preoperative disease detection, and fluorescence imaging-guided surgery (FIGS) for real-time intraoperative tumor margin identification. Here, we report on the evaluation of dual-labeled humanized anti-prostate stem cell antigen (PSCA) cys-minibody (A11 cMb) for immunoPET/fluorescence imaging in subcutaneous and orthotopic prostate cancer models. Methods: A11 cMb was site-specifically conjugated with the near-infrared fluorophore Cy5.5 and radiolabeled with 124I or 89Zr. 124I-A11 cMb-Cy5.5 was used for successive immunoPET/fluorescence imaging of prostate cancer xenografts expressing high or moderate levels of PSCA (22Rv1-PSCA and PC3-PSCA). 89Zr-A11 cMb-Cy5.5 dual-modality imaging was evaluated in an orthotopic model. Ex vivo biodistribution at 24 h was used to confirm the uptake values, and tumors were visualized by post-mortem fluorescence imaging. Results: A11 cMb-Cy5.5 retained low nanomolar affinity for PSCA-positive cells. Conjugation conditions were established (dye-to-protein ratio of 0.7:1) that did not affect the biodistribution, pharmacokinetics, or clearance of A11 cMb. ImmunoPET using dual-labeled 124I-A11 cMb-Cy5.5 showed specific targeting to both 22Rv1-PSCA and PC3-PSCA s.c. xenografts in nude mice. Ex vivo biodistribution confirmed specific uptake to PSCA-expressing tumors with 22Rv1-PSCA:22Rv1 and PC3-PSCA:PC3 ratios of 13:1 and 5.6:1, respectively. Consistent with the immunoPET, fluorescence imaging showed a strong signal from both 22Rv1-PSCA and PC3-PSCA tumors compared with non-PSCA expressing tumors. In an orthotopic model, 89Zr-A11 cMb-Cy5.5 immunoPET was able to detect intraprostatically implanted 22Rv1-PSCA cells. Importantly, fluorescence imaging clearly distinguished the prostate tumor from surrounding seminal vesicles. Conclusion: Dual-labeled A11 cMb specifically visualized PSCA-positive tumor by successive immunoPET/fluorescence, which can potentially be translated for preoperative whole-body prostate cancer detection and intraoperative surgical guidance in patients.
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26
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DA-EPOCH-R improves the outcome over that of R-CHOP regimen for DLBCL patients below 60 years, GCB phenotype, and those with high-risk IPI, but not for double expressor lymphoma. J Cancer Res Clin Oncol 2018; 145:117-127. [DOI: 10.1007/s00432-018-2771-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2018] [Accepted: 10/11/2018] [Indexed: 10/28/2022]
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27
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Zhang M, Kobayashi N, Zettlitz KA, Kono EA, Yamashiro JM, Tsai WTK, Jiang ZK, Tran CP, Wang C, Guan J, Wu AM, Reiter RE. Near-Infrared Dye-Labeled Anti-Prostate Stem Cell Antigen Minibody Enables Real-Time Fluorescence Imaging and Targeted Surgery in Translational Mouse Models. Clin Cancer Res 2018; 25:188-200. [PMID: 30301826 DOI: 10.1158/1078-0432.ccr-18-1382] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Revised: 08/22/2018] [Accepted: 10/03/2018] [Indexed: 12/22/2022]
Abstract
PURPOSE The inability to intraoperatively distinguish primary tumor, as well as lymphatic spread, increases the probability of positive surgical margins, tumor recurrence, and surgical toxicity. The goal of this study was to develop a tumor-specific optical probe for real-time fluorescence-guided surgery. EXPERIMENTAL DESIGN A humanized antibody fragment against PSCA (A11 minibody, A11 Mb) was conjugated with a near-infrared fluorophore, IRDye800CW. The integrity and binding of the probe to PSCA were confirmed by gel electrophoresis, size-exclusion chromatography, and flow cytometry, respectively. The ability of the probe to detect tumor-infiltrated lymph nodes and metastatic lesions was evaluated in 2 xenograft models, as well as in transgenic mice expressing human PSCA (hPSCA). An invasive intramuscular model was utilized to evaluate the efficacy of the A11 Mb-IRDye800CW-guided surgery. RESULTS A11 Mb was successfully conjugated with IRDye800CW and retained specific binding to PSCA. In vivo imaging showed maximal signal-to-background ratios at 48 hours. The A11 Mb-IRDye800CW specifically detected PSCA-positive primary tumors, tumor-infiltrated lymph nodes, and distant metastases with high contrast. Fluorescence guidance facilitated more complete tumor resection, reduced tumor recurrence, and improved overall survival, compared with conventional white light surgery. The probe successfully identified primary orthotopic tumors and metastatic lesions in hPSCA transgenic mice. CONCLUSIONS Real-time fluorescence image-guided surgery with A11 Mb-IRDye800CW enabled detection of lymph node metastases and positive surgical margins, facilitated more complete tumor removal, and improved survival, compared with white light surgery. These results may be translatable into clinical practice to improve surgical and patient outcomes.
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Affiliation(s)
- Mo Zhang
- Department of Urology, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California.,Department of Urology, Shengjing Hospital, China Medical University, Shenyang, China
| | - Naoko Kobayashi
- Department of Urology, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California
| | - Kirstin A Zettlitz
- Crump Institute for Molecular Imaging, Department of Molecular and Medical Pharmacology, University of California Los Angeles, Los Angeles, California
| | - Evelyn A Kono
- Department of Urology, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California
| | - Joyce M Yamashiro
- Department of Urology, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California
| | - Wen-Ting K Tsai
- Crump Institute for Molecular Imaging, Department of Molecular and Medical Pharmacology, University of California Los Angeles, Los Angeles, California
| | - Ziyue K Jiang
- Department of Urology, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California
| | - Chau P Tran
- Department of Urology, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California
| | - Chung Wang
- Department of Urology, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California
| | - Johnny Guan
- Department of Urology, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California
| | - Anna M Wu
- Crump Institute for Molecular Imaging, Department of Molecular and Medical Pharmacology, University of California Los Angeles, Los Angeles, California
| | - Robert E Reiter
- Department of Urology, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California.
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28
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Li X, He Z, Cheng B, Fang Q, Ma D, Lu T, Wei D, Kuang X, Tang S, Xiong J, Wang J. Effect of BCLAF1 on HDAC inhibitor LMK-235-mediated apoptosis of diffuse large B cell lymphoma cells and its mechanism. Cancer Biol Ther 2018; 19:825-834. [PMID: 29969367 DOI: 10.1080/15384047.2018.1472188] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Diffuse large B-cell lymphoma (DLBCL) is the most common type of adult lymphoma. It is a group of malignant tumors with a large number of clinical manifestations and prognoses. Therefore, it is necessary to explore its unknown potential therapeutic targets. Histone deacetylase inhibitor (HDACi) is a novel drug for the treatment of DLBCL, however pan-HDACis cannot be ignored because of their clinical efficacy. By contrast, specific HDACi is well-tolerated, and LMK-235 is a novel HDACi that is a specific inhibitor of HDAC4 and HDAC5. In this study, we investigated the up-regulation of BCLAF1 through NF-κB signaling pathways in LMK-235, mediating the apoptosis of two diffuse large B-cell lymphoma cell lines, OCI-LY10 and OCI-LY3. Further studies showed that BCLAF1 expression was increased in DLBCL cells after treatment with the NF-κB inhibitor Bay11-7082. The combination of Bay11-7082 and siRNA si-HDAC4 significantly increased BCLAF1 expression and further increased apoptosis. These results indicate that BCLAF1 plays an important role in LMK-235-mediated apoptosis and may be a potential target for the treatment of diffuse large B-cell lymphoma.
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Affiliation(s)
- Xinyao Li
- a Guizhou Medical University , Guiyang , Guizhou , China.,d Guizhou Province Laboratory of Haematopoietic Stem Cell Transplantation Center , Guiyang , Guizhou , China.,e Department of Hematology , Affiliated Hospital of Guizhou Medical University , Guiyang , Guizhou , China
| | - Zhengchang He
- a Guizhou Medical University , Guiyang , Guizhou , China.,d Guizhou Province Laboratory of Haematopoietic Stem Cell Transplantation Center , Guiyang , Guizhou , China.,e Department of Hematology , Affiliated Hospital of Guizhou Medical University , Guiyang , Guizhou , China
| | - Bingqing Cheng
- b Department of Pharmacy , Guizhou Medical University , Guiyang , Guizhou , China.,d Guizhou Province Laboratory of Haematopoietic Stem Cell Transplantation Center , Guiyang , Guizhou , China.,e Department of Hematology , Affiliated Hospital of Guizhou Medical University , Guiyang , Guizhou , China
| | - Qin Fang
- b Department of Pharmacy , Guizhou Medical University , Guiyang , Guizhou , China.,c Department of Pharmacy , Affiliated BaiYun Hospital of Guizhou Medical University , Guiyang , Guizhou , China
| | - Dan Ma
- a Guizhou Medical University , Guiyang , Guizhou , China.,d Guizhou Province Laboratory of Haematopoietic Stem Cell Transplantation Center , Guiyang , Guizhou , China.,e Department of Hematology , Affiliated Hospital of Guizhou Medical University , Guiyang , Guizhou , China
| | - Tingting Lu
- a Guizhou Medical University , Guiyang , Guizhou , China.,d Guizhou Province Laboratory of Haematopoietic Stem Cell Transplantation Center , Guiyang , Guizhou , China.,e Department of Hematology , Affiliated Hospital of Guizhou Medical University , Guiyang , Guizhou , China
| | - Danna Wei
- a Guizhou Medical University , Guiyang , Guizhou , China.,d Guizhou Province Laboratory of Haematopoietic Stem Cell Transplantation Center , Guiyang , Guizhou , China.,e Department of Hematology , Affiliated Hospital of Guizhou Medical University , Guiyang , Guizhou , China
| | - Xingyi Kuang
- a Guizhou Medical University , Guiyang , Guizhou , China.,d Guizhou Province Laboratory of Haematopoietic Stem Cell Transplantation Center , Guiyang , Guizhou , China.,e Department of Hematology , Affiliated Hospital of Guizhou Medical University , Guiyang , Guizhou , China
| | - Sishi Tang
- a Guizhou Medical University , Guiyang , Guizhou , China.,d Guizhou Province Laboratory of Haematopoietic Stem Cell Transplantation Center , Guiyang , Guizhou , China.,e Department of Hematology , Affiliated Hospital of Guizhou Medical University , Guiyang , Guizhou , China
| | - Jie Xiong
- a Guizhou Medical University , Guiyang , Guizhou , China.,d Guizhou Province Laboratory of Haematopoietic Stem Cell Transplantation Center , Guiyang , Guizhou , China.,e Department of Hematology , Affiliated Hospital of Guizhou Medical University , Guiyang , Guizhou , China
| | - Jishi Wang
- a Guizhou Medical University , Guiyang , Guizhou , China.,d Guizhou Province Laboratory of Haematopoietic Stem Cell Transplantation Center , Guiyang , Guizhou , China.,e Department of Hematology , Affiliated Hospital of Guizhou Medical University , Guiyang , Guizhou , China
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29
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Phelan JD, Young RM, Webster DE, Roulland S, Wright GW, Kasbekar M, Shaffer AL, Ceribelli M, Wang JQ, Schmitz R, Nakagawa M, Bachy E, Huang DW, Ji Y, Chen L, Yang Y, Zhao H, Yu X, Xu W, Palisoc MM, Valadez RR, Davies-Hill T, Wilson WH, Chan WC, Jaffe ES, Gascoyne RD, Campo E, Rosenwald A, Ott G, Delabie J, Rimsza LM, Rodriguez FJ, Estephan F, Holdhoff M, Kruhlak MJ, Hewitt SM, Thomas CJ, Pittaluga S, Oellerich T, Staudt LM. A multiprotein supercomplex controlling oncogenic signalling in lymphoma. Nature 2018; 560:387-391. [PMID: 29925955 PMCID: PMC6201842 DOI: 10.1038/s41586-018-0290-0] [Citation(s) in RCA: 247] [Impact Index Per Article: 41.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2017] [Accepted: 06/13/2018] [Indexed: 12/11/2022]
Abstract
B cell receptor (BCR) signalling has emerged as a therapeutic target in B cell lymphomas, but inhibiting this pathway in diffuse large B cell lymphoma (DLBCL) has benefited only a subset of patients1. Gene expression profiling identified two major subtypes of DLBCL, known as germinal centre B cell-like and activated B cell-like (ABC)2,3, that show poor outcomes after immunochemotherapy in ABC. Autoantigens drive BCR-dependent activation of NF-κB in ABC DLBCL through a kinase signalling cascade of SYK, BTK and PKCβ to promote the assembly of the CARD11-BCL10-MALT1 adaptor complex, which recruits and activates IκB kinase4-6. Genome sequencing revealed gain-of-function mutations that target the CD79A and CD79B BCR subunits and the Toll-like receptor signalling adaptor MYD885,7, with MYD88(L265P) being the most prevalent isoform. In a clinical trial, the BTK inhibitor ibrutinib produced responses in 37% of cases of ABC1. The most striking response rate (80%) was observed in tumours with both CD79B and MYD88(L265P) mutations, but how these mutations cooperate to promote dependence on BCR signalling remains unclear. Here we used genome-wide CRISPR-Cas9 screening and functional proteomics to determine the molecular basis of exceptional clinical responses to ibrutinib. We discovered a new mode of oncogenic BCR signalling in ibrutinib-responsive cell lines and biopsies, coordinated by a multiprotein supercomplex formed by MYD88, TLR9 and the BCR (hereafter termed the My-T-BCR supercomplex). The My-T-BCR supercomplex co-localizes with mTOR on endolysosomes, where it drives pro-survival NF-κB and mTOR signalling. Inhibitors of BCR and mTOR signalling cooperatively decreased the formation and function of the My-T-BCR supercomplex, providing mechanistic insight into their synergistic toxicity for My-T-BCR+ DLBCL cells. My-T-BCR supercomplexes characterized ibrutinib-responsive malignancies and distinguished ibrutinib responders from non-responders. Our data provide a framework for the rational design of oncogenic signalling inhibitors in molecularly defined subsets of DLBCL.
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Affiliation(s)
- James D Phelan
- Lymphoid Malignancies Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Ryan M Young
- Lymphoid Malignancies Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Daniel E Webster
- Lymphoid Malignancies Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Sandrine Roulland
- Lymphoid Malignancies Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA.,Aix-Marseille University, CNRS, INSERM, Centre d'Immunologie de Marseille-Luminy, Marseille, France
| | - George W Wright
- Biometric Research Branch, Division of Cancer Diagnosis and Treatment, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Monica Kasbekar
- Lymphoid Malignancies Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Arthur L Shaffer
- Lymphoid Malignancies Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Michele Ceribelli
- Division of Preclinical Innovation, National Center for Advancing Translational Sciences, National Institutes of Health, Gaithersburg, MD, USA
| | - James Q Wang
- Lymphoid Malignancies Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Roland Schmitz
- Lymphoid Malignancies Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Masao Nakagawa
- Lymphoid Malignancies Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Emmanuel Bachy
- Lymphoid Malignancies Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Da Wei Huang
- Lymphoid Malignancies Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Yanlong Ji
- Department of Medicine II, Hematology/Oncology, Goethe University, Frankfurt, Germany
| | - Lu Chen
- Division of Preclinical Innovation, National Center for Advancing Translational Sciences, National Institutes of Health, Gaithersburg, MD, USA
| | - Yandan Yang
- Lymphoid Malignancies Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Hong Zhao
- Lymphoid Malignancies Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Xin Yu
- Lymphoid Malignancies Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Weihong Xu
- Lymphoid Malignancies Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Maryknoll M Palisoc
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Racquel R Valadez
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Theresa Davies-Hill
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Wyndham H Wilson
- Lymphoid Malignancies Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Wing C Chan
- Departments of Pathology, City of Hope National Medical Center, Duarte, CA, USA
| | - Elaine S Jaffe
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Randy D Gascoyne
- British Columbia Cancer Agency, Vancouver, British Columbia, Canada
| | - Elias Campo
- Hospital Clinic, University of Barcelona, Barcelona, Spain
| | - Andreas Rosenwald
- Institute of Pathology, University of Würzburg, and Comprehensive Cancer Center Mainfranken, Würzburg, Germany
| | - German Ott
- Department of Clinical Pathology, Robert-Bosch-Krankenhaus, and Dr. Margarete Fischer-Bosch Institute for Clinical Pharmacology, Stuttgart, Germany
| | - Jan Delabie
- University Health Network, Laboratory Medicine Program, Toronto General Hospital and University of Toronto, Toronto, Ontario, Canada
| | - Lisa M Rimsza
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Scottsdale, AZ, USA
| | - Fausto J Rodriguez
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Fayez Estephan
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Matthias Holdhoff
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Michael J Kruhlak
- Experimental Immunology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Stephen M Hewitt
- Experimental Pathology Laboratory, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Craig J Thomas
- Lymphoid Malignancies Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA.,Division of Preclinical Innovation, National Center for Advancing Translational Sciences, National Institutes of Health, Gaithersburg, MD, USA
| | - Stefania Pittaluga
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Thomas Oellerich
- Lymphoid Malignancies Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA. .,Department of Medicine II, Hematology/Oncology, Goethe University, Frankfurt, Germany. .,German Cancer Research Center and German Cancer Consortium, Heidelberg, Germany.
| | - Louis M Staudt
- Lymphoid Malignancies Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA.
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30
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Bai Y, Lu J, Cheng Y, Zhang F, Fan X, Weng Y, Zhu J. NF-кB increases LPS-mediated procalcitonin production in human hepatocytes. Sci Rep 2018; 8:8913. [PMID: 29891911 PMCID: PMC5995812 DOI: 10.1038/s41598-018-27302-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Accepted: 05/30/2018] [Indexed: 12/13/2022] Open
Abstract
For years, procalcitonin (PCT) has been employed as a diagnostic biomarker for the severity of sepsis and septic shock, as well as for guiding the application of antibiotics. However, the molecular/cellular basis for the regulation of PCT production is not fully understood. In this study, we identified the signalling pathway by which the expression of PCT was induced by lipopolysaccharide in human hepatocytes at the mRNA and protein levels. This expression was dependent on nuclear transcription factor κB (NF-κB), as indicated by a NF-κB binding site (nt −53 to −44) found in the PCT promoter region. We also showed that microRNA-513b (miR-513b) was also able to bind to the 3′-untranslated region (UTR) of the PCT promoter sequence. Meanwhile, the activation of NF-κB down-regulated the expression of miR-513b. In conclusion, we suggest that NF-κB is capable of enhancing the expression of PCT by either directly activating the transcription of the PCT gene or indirectly modulating the expression of its regulatory component, miR-513b. Our results indicate a molecular mechanism responsible for the regulation of PCT production.
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Affiliation(s)
- Yongfeng Bai
- Core Facility, Department of Clinical Laboratory, Quzhou People's Hospital, Quzhou, Zhejiang, China
| | - Jun Lu
- Core Facility, Department of Clinical Laboratory, Quzhou People's Hospital, Quzhou, Zhejiang, China
| | - Ying Cheng
- Core Facility, Department of Clinical Laboratory, Quzhou People's Hospital, Quzhou, Zhejiang, China
| | - Feng Zhang
- Core Facility, Department of Clinical Laboratory, Quzhou People's Hospital, Quzhou, Zhejiang, China
| | - Xueyu Fan
- Core Facility, Department of Clinical Laboratory, Quzhou People's Hospital, Quzhou, Zhejiang, China
| | - Yuanyuan Weng
- Core Facility, Department of Clinical Laboratory, Quzhou People's Hospital, Quzhou, Zhejiang, China
| | - Jin Zhu
- Core Facility, Department of Clinical Laboratory, Quzhou People's Hospital, Quzhou, Zhejiang, China.
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Li E, Liu L, Li F, Luo L, Zhao S, Wang J, Kang R, Luo J, Zhao Z. PSCA promotes prostate cancer proliferation and cell-cycle progression by up-regulating c-Myc. Prostate 2017; 77:1563-1572. [PMID: 28971496 DOI: 10.1002/pros.23432] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/10/2017] [Accepted: 09/06/2017] [Indexed: 11/10/2022]
Abstract
BACKGROUND The Prostate stem cell antigen (PSCA) is a glycosylphosphatidylinositol (GPI)-anchored protein. Increasing evidence has indicated PSCA plays an important role in tumorigenesis. However, its function and the underlying molecular mechanisms in prostate cancer (PCa) are still not fully elucidated. In this study, we aimed to explore the effect of PSCA on cell cycle of PCa cells and its mechanism research. METHODS Immunohistochemistry, quantitative reverse transcription-PCR (qRT-PCR) and Western blotting were used to quantify PSCA expression pattern in PCa tissues and cell lines. The association of PSCA expression with the biochemical recurrence (BCR)-free survival and overall survival (OS) of PCa patients were analyzed using Kaplan-Meier method. The roles of PSCA in PCa were confirmed based on both in vitro and in vivo systems. RESULTS Immunohistochemistry results showed that PSCA was upregulated in PCa tissue. PSCA overexpression were significantly associated with high Gleason score (GS) (P = 0.028), positive BCR (P = 0.002), and poor OS (P = 0.032) and high c-Myc expression (P = 0.019). PSCA promoted PCa cell cycle progression and tumor growth via increased c-Myc expression. Additional, PI3K/AKT signaling pathways was involved in PSCA-mediated c-Myc expression and cell proliferation. CONCLUSIONS PSCA is a novel cell cycle regulator with a key role in mediating c-Myc-induced proliferation. PSCA may be a potential diagnostic marker and therapeutic target for patients with PCa.
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Affiliation(s)
- Ermao Li
- Guangdong Provincial Key Laboratory of Urology, Department of Urology and Andrology, Minimally Invasive Surgery Center, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Luhao Liu
- Guangdong Provincial Key Laboratory of Urology, Department of Urology and Andrology, Minimally Invasive Surgery Center, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
- Department of Organ Transplantation, The Section Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Futian Li
- Guangdong Provincial Key Laboratory of Urology, Department of Urology and Andrology, Minimally Invasive Surgery Center, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Lianmin Luo
- Guangdong Provincial Key Laboratory of Urology, Department of Urology and Andrology, Minimally Invasive Surgery Center, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Shankun Zhao
- Guangdong Provincial Key Laboratory of Urology, Department of Urology and Andrology, Minimally Invasive Surgery Center, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Jiamin Wang
- Guangdong Provincial Key Laboratory of Urology, Department of Urology and Andrology, Minimally Invasive Surgery Center, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Ran Kang
- Department of Urology, The First Affiliated Hospital of University of South China, Hengyang, Hunan, China
| | - Jintai Luo
- Guangdong Provincial Key Laboratory of Urology, Department of Urology and Andrology, Minimally Invasive Surgery Center, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Zhigang Zhao
- Guangdong Provincial Key Laboratory of Urology, Department of Urology and Andrology, Minimally Invasive Surgery Center, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
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Clinical utility of recently identified diagnostic, prognostic, and predictive molecular biomarkers in mature B-cell neoplasms. Mod Pathol 2017; 30:1338-1366. [PMID: 28664939 DOI: 10.1038/modpathol.2017.58] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Revised: 04/25/2017] [Accepted: 04/26/2017] [Indexed: 12/18/2022]
Abstract
Genomic profiling studies have provided new insights into the pathogenesis of mature B-cell neoplasms and have identified markers with prognostic impact. Recurrent mutations in tumor-suppressor genes (TP53, BIRC3, ATM), and common signaling pathways, such as the B-cell receptor (CD79A, CD79B, CARD11, TCF3, ID3), Toll-like receptor (MYD88), NOTCH (NOTCH1/2), nuclear factor-κB, and mitogen activated kinase signaling, have been identified in B-cell neoplasms. Chronic lymphocytic leukemia/small lymphocytic lymphoma, diffuse large B-cell lymphoma, follicular lymphoma, mantle cell lymphoma, Burkitt lymphoma, Waldenström macroglobulinemia, hairy cell leukemia, and marginal zone lymphomas of splenic, nodal, and extranodal types represent examples of B-cell neoplasms in which novel molecular biomarkers have been discovered in recent years. In addition, ongoing retrospective correlative and prospective outcome studies have resulted in an enhanced understanding of the clinical utility of novel biomarkers. This progress is reflected in the 2016 update of the World Health Organization classification of lymphoid neoplasms, which lists as many as 41 mature B-cell neoplasms (including provisional categories). Consequently, molecular genetic studies are increasingly being applied for the clinical workup of many of these neoplasms. In this review, we focus on the diagnostic, prognostic, and/or therapeutic utility of molecular biomarkers in mature B-cell neoplasms.
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Kessler C, Pardo A, Tur MK, Gattenlöhner S, Fischer R, Kolberg K, Barth S. Novel PSCA targeting scFv-fusion proteins for diagnosis and immunotherapy of prostate cancer. J Cancer Res Clin Oncol 2017; 143:2025-2038. [PMID: 28667390 DOI: 10.1007/s00432-017-2472-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Accepted: 06/28/2017] [Indexed: 12/22/2022]
Abstract
PURPOSE Despite great progress in the diagnosis and treatment of localized prostate cancer (PCa), there remains a need for new diagnostic markers that can accurately distinguish indolent and aggressive variants. One promising approach is the antibody-based targeting of prostate stem cell antigen (PSCA), which is frequently overexpressed in PCa. Here, we show the construction of a molecular imaging probe comprising a humanized scFv fragment recognizing PSCA genetically fused to an engineered version of the human DNA repair enzyme O6-alkylguanine-DNA alkyltransferase (AGT), the SNAP-tag, enabling specific covalent coupling to various fluorophores for diagnosis of PCa. Furthermore, the recombinant immunotoxin (IT) PSCA(scFv)-ETA' comprising the PSCA(scFv) and a truncated version of Pseudomonas exotoxin A (PE, ETA') was generated. METHODS We analyzed the specific binding and internalization behavior of the molecular imaging probe PSCA(scFv)-SNAP in vitro by flow cytometry and live cell imaging, compared to the corresponding IT PSCA(scFv)-ETA'. The cytotoxic activity of PSCA(scFv)-ETA' was tested using cell viability assays. Specific binding was confirmed on formalin-fixed paraffin-embedded tissue specimen of early and advanced PCa. RESULTS Alexa Fluor® 647 labeling of PSCA(scFv)-SNAP confirmed selective binding to PSCA, leading to rapid internalization into the target cells. The recombinant IT PSCA(scFv)-ETA' showed selective binding leading to internalization and efficient elimination of target cells. CONCLUSIONS Our data demonstrate, for the first time, the specific binding, internalization, and cytotoxicity of a scFv-based fusion protein targeting PSCA. Immunohistochemical staining confirmed the specific ex vivo binding to primary PCa material.
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Affiliation(s)
- Claudia Kessler
- Fraunhofer Institute for Molecular Biology and Applied Ecology IME, Forckenbeckstrasse 6, 52074, Aachen, Germany
- Institute of Applied Medical Engineering, University Hospital RWTH Aachen, Aachen, Germany
| | - Alessa Pardo
- Institute of Applied Medical Engineering, University Hospital RWTH Aachen, Aachen, Germany
| | - Mehmet K Tur
- Institute for Pathology, Justus-Liebig University, Giessen, Germany
| | | | - Rainer Fischer
- Fraunhofer Institute for Molecular Biology and Applied Ecology IME, Forckenbeckstrasse 6, 52074, Aachen, Germany
- Institute of Molecular Biotechnology (Biology VII), RWTH Aachen University, Aachen, Germany
| | - Katharina Kolberg
- Fraunhofer Institute for Molecular Biology and Applied Ecology IME, Forckenbeckstrasse 6, 52074, Aachen, Germany
- Institute of Applied Medical Engineering, University Hospital RWTH Aachen, Aachen, Germany
| | - Stefan Barth
- South African Research Chair in Cancer Biotechnology, Department of Integrative Biomedical Sciences, Faculty of Health Sciences, Institute of Infectious Disease and Molecular Medicine (IDM), University of Cape Town, Anzio Road, Observatory, 7925, South Africa.
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Identification of 11(13)-dehydroivaxillin as a potent therapeutic agent against non-Hodgkin's lymphoma. Cell Death Dis 2017; 8:e3050. [PMID: 28906487 PMCID: PMC5636986 DOI: 10.1038/cddis.2017.442] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Revised: 07/15/2017] [Accepted: 07/31/2017] [Indexed: 12/11/2022]
Abstract
Despite great advancements in the treatment of non-Hodgkin lymphoma (NHL), sensitivity of different subtypes to therapy varies. Targeting the aberrant activation NF-κB signaling pathways in lymphoid malignancies is a promising strategy. Here, we report that 11(13)-dehydroivaxillin (DHI), a natural compound isolated from the Carpesium genus, induces growth inhibition and apoptosis of NHL cells. Multiple signaling cascades are influenced by DHI in NHL cells. PI3K/AKT and ERK are activated or inhibited in a cell type dependent manner, whereas NF-κB signaling pathway was inhibited in all the NHL cells tested. Applying the cellular thermal shift assay, we further demonstrated that DHI directly interacts with IKKα/IKKβ in NHL cells. Interestingly, DHI treatment also reduced the IKKα/IKKβ protein level in NHL cells. Consistent with this finding, knockdown of IKKα/IKKβ inhibits cell proliferation and enhances DHI-induced proliferation inhibition. Overexpression of p65, p52 or RelB partially reverses DHI-induced cell growth inhibition. Furthermore, DHI treatment significantly inhibits the growth of NHL cell xenografts. In conclusion, we demonstrate that DHI exerts anti-NHL effect in vitro and in vivo, through a cumulative effect on NF-κB and other pathways. DHI may serve as a promising lead compound for the therapy of NHL.
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Meng F, Liu B, Xie G, Song Y, Zheng X, Qian X, Li S, Jia H, Zhang X, Zhang L, Yang YL, Fu L. Amplification and overexpression of PSCA at 8q24 in invasive micropapillary carcinoma of breast. Breast Cancer Res Treat 2017; 166:383-392. [PMID: 28755148 DOI: 10.1007/s10549-017-4407-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Accepted: 07/17/2017] [Indexed: 11/24/2022]
Abstract
PURPOSE Invasive micropapillary carcinoma (IMPC) of the breast has distinct histological features and molecular genetic profiles. Gains/amplifications of 8q24 are found associated with IMPC. Although the prostate stem cell antigen (PSCA) gene is located at chromosome 8q24, and found over-expressed in prior studies, its prognostic values and biological significance in IMPC have not been well studied. METHODS Fluorescence in situ hybridization (FISH) was used to assess the frequencies of PSCA copy number gains in IMPC, invasive ductal carcinoma of no special type (IDC-NST), and invasive lobular carcinoma (ILC) samples. The protein expression levels of PSCA were examined in 56 IMPC, 72 IDC-NST, and 56 ILC samples using immunohistochemical analysis. RESULTS PSCA gene amplification was detected in 45.2% (14/31) of the IMPC, 28.1% (9/32) of the IDC-NST, and none (0/25) of the ILC. PSCA protein expression was observed in 58.9% (33/56), 40.3% (29/72), and 3.6% (2/56) of IMPC, IDC-NST, and ILC samples, respectively. The concordant rate of the immunohistochemistry and FISH data was 85.2%. PSCA gene amplification highly correlated with its protein overexpression (rs = 0.687, P < 0.001), suggesting that gene amplification is an important mechanism involved in PSCA overexpression. Our univariate analysis showed that the patients with PSCA-positive IMPC had a decreased disease-free survival (DFS) compared to PSCA-negative IMPC patients (P = 0.003). Our multivariate analysis confirmed the worse DFS in PSCA-positive IMPC patients (P = 0.022). CONCLUSIONS Our results indicate that PSCA may be an attractive target in the 8q24 amplicon and that it may serve as a molecular marker of metastasis and recurrence in IMPC. The differential expression of PSCA may be associated with cell adhesion. Detection of PSCA protein and gene amplification may help manage and predict the prognosis of IMPC patients.
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Affiliation(s)
- Fanfan Meng
- Department of Breast Pathology and Lab, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China
- Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Ministry of Education, West Huanhu Road, Ti Yuan Bei, Hexi District, Tianjin, 300060, China
| | - Bingbing Liu
- Department of Breast Pathology and Lab, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China
- Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Ministry of Education, West Huanhu Road, Ti Yuan Bei, Hexi District, Tianjin, 300060, China
- Third Central Hospital of Tianjin, Tianjin Key Laboratory of Artificial Cell, Tianjin Institute of Hepatobiliary Disease, Artificial Cell Engineering Technology Research Center of Public Health Ministry, Tianjin, China
| | - Gan Xie
- Department of Breast Pathology and Lab, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China
- Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Ministry of Education, West Huanhu Road, Ti Yuan Bei, Hexi District, Tianjin, 300060, China
| | - Yawen Song
- Department of Breast Pathology and Lab, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China
- Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Ministry of Education, West Huanhu Road, Ti Yuan Bei, Hexi District, Tianjin, 300060, China
| | - Xia Zheng
- Department of Breast Pathology and Lab, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China
- Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Ministry of Education, West Huanhu Road, Ti Yuan Bei, Hexi District, Tianjin, 300060, China
| | - Xiaolong Qian
- Department of Breast Pathology and Lab, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China
- Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Ministry of Education, West Huanhu Road, Ti Yuan Bei, Hexi District, Tianjin, 300060, China
| | - Shuai Li
- Department of Breast Pathology and Lab, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China
- Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Ministry of Education, West Huanhu Road, Ti Yuan Bei, Hexi District, Tianjin, 300060, China
| | - Hongqin Jia
- Department of Breast Pathology and Lab, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China
- Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Ministry of Education, West Huanhu Road, Ti Yuan Bei, Hexi District, Tianjin, 300060, China
| | - Xinmin Zhang
- Department of Pathology, Cooper University Hospital, Cooper Medical School of Rowan University, Camden, NJ, USA
| | - Lanjing Zhang
- Department of Breast Pathology and Lab, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China
- Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Ministry of Education, West Huanhu Road, Ti Yuan Bei, Hexi District, Tianjin, 300060, China
- Department of Pathology, University Medical Center of Princeton, Plainsboro, NJ, USA
- Rutgers Cancer Institute of New Jersey, New Brunswick, NJ, USA
- Department of Chemical Biology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, NJ, USA
- Department of Biological Sciences, Faculty of Arts and Sciences, Rutgers University, Newark, NJ, USA
| | - Yi-Ling Yang
- Department of Breast Pathology and Lab, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China.
- Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Ministry of Education, West Huanhu Road, Ti Yuan Bei, Hexi District, Tianjin, 300060, China.
| | - Li Fu
- Department of Breast Pathology and Lab, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China.
- Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Ministry of Education, West Huanhu Road, Ti Yuan Bei, Hexi District, Tianjin, 300060, China.
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Pillai MRA, Nanabala R, Joy A, Sasikumar A, Russ Knapp FF. Radiolabeled enzyme inhibitors and binding agents targeting PSMA: Effective theranostic tools for imaging and therapy of prostate cancer. Nucl Med Biol 2016; 43:692-720. [PMID: 27589333 DOI: 10.1016/j.nucmedbio.2016.08.006] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2016] [Revised: 08/09/2016] [Accepted: 08/09/2016] [Indexed: 12/14/2022]
Abstract
Because of the broad incidence, morbidity and mortality associated with prostate-derived cancer, the development of more effective new technologies continues to be an important goal for the accurate detection and treatment of localized prostate cancer, lymphatic involvement and metastases. Prostate-specific membrane antigen (PSMA; Glycoprotein II) is expressed in high levels on prostate-derived cells and is an important target for visualization and treatment of prostate cancer. Radiolabeled peptide targeting technologies have rapidly evolved over the last decade and have focused on the successful development of radiolabeled small molecules that act as inhibitors to the binding of the N-acetyl-l-aspartyl-l-glutamate (NAAG) substrate to the PSMA molecule. A number of radiolabeled PSMA inhibitors have been described in the literature and labeled with SPECT, PET and therapeutic radionuclides. Clinical studies with these agents have demonstrated the improved potential of PSMA-targeted PET imaging agents to detect metastatic prostate cancer in comparison with conventional imaging technologies. Although many of these agents have been evaluated in humans, by far the most extensive clinical literature has described use of the 68Ga and 177Lu agents. This review describes the design and development of these agents, with a focus on the broad clinical introduction of PSMA targeting motifs labeled with 68Ga for PET-CT imaging and 177Lu for therapy. In particular, because of availability from the long-lived 68Ge (T1/2=270days)/68Ga (T1/2=68min) generator system and increasing availability of PET-CT, the 68Ga-labeled PSMA targeted agent is receiving widespread interest and is one of the fastest growing radiopharmaceuticals for PET-CT imaging.
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Affiliation(s)
| | - Raviteja Nanabala
- KIMS DDNMRC PET Scans, KIMS Hospital, Trivandrum, Kerala, India, 691601
| | - Ajith Joy
- Molecular Group of Companies, Puthuvype, Ernakulam, Kerala, 682508, India
| | - Arun Sasikumar
- KIMS DDNMRC PET Scans, KIMS Hospital, Trivandrum, Kerala, India, 691601
| | - Furn F Russ Knapp
- Emeritus, Medical Radioisotope Program, Oak Ridge National Laboratory, Oak Ridge, TN, USA, 37830
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Kim SH, Park WS, Kim SH, Park B, Joo J, Lee GK, Joung JY, Seo HK, Chung J, Lee KH. Prostate Stem Cell Antigen Expression in Radical Prostatectomy Specimens Predicts Early Biochemical Recurrence in Patients with High Risk Prostate Cancer Receiving Neoadjuvant Hormonal Therapy. PLoS One 2016; 11:e0151646. [PMID: 26982980 PMCID: PMC4794240 DOI: 10.1371/journal.pone.0151646] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2015] [Accepted: 03/02/2016] [Indexed: 12/31/2022] Open
Abstract
We aimed to identify tissue biomarkers that predict early biochemical recurrence (BCR) in patients with high-risk prostate cancer (PC), toward the goal of increasing the benefits of neoadjuvant hormonal therapy (NHT). In 2005–2012, prostatectomy specimens were collected from 134 PC patients who had received NHT and radical prostatectomy. The expression of 13 tissue biomarkers was assessed in the specimens via immunohistochemistry. Time to BCR and factors predictive of BCR were determined by using the Cox proportional hazards model. During the follow-up period (median, 57.5 months), 67 (50.0%) patients experienced BCR. Four (3.0%) patients were tumor-free in the final pathology assessment, and 101 (75.4%) had negative resection margins. Prostate stem cell antigen (PSCA) was the only significant prognostic tissue biomarker of BCR [hazard ratio (HR), 2.58; 95% confidence interval (CI), 1.06–6.27; p = 0.037] in a multivariable analysis adjusted by the clinicopathological variables that also significantly predicted BCR; these were seminal vesicle invasion (HR, 2.39; 95% CI, 1.32–4.34), initial prostate serum antigen level (HR 1.01; 95% CI, 1.001–1.020), prostate size (HR, 0.93; 95% CI, 0.90–0.97), and the Gleason score of preoperative biopsies (HR, 1.34; 95% CI, 1.01–1.79). We suggest that PSCA is a useful tissue marker for predicting BCR in patients with high risk PC receiving NHT and radical prostatectomy.
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Affiliation(s)
- Sung Han Kim
- Department of Urology, Center for Prostate Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Korea
| | - Weon Seo Park
- Department of Urology, Center for Prostate Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Korea
- Department of Pathology, Center for Prostate Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Korea
| | - Sun Ho Kim
- Department of Radiology, Center for Prostate Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Korea
| | - Boram Park
- Biometric Research Branch, Research Institute and Hospital, National Cancer Center, Goyang, Korea
| | - Jungnam Joo
- Biometric Research Branch, Research Institute and Hospital, National Cancer Center, Goyang, Korea
| | - Geon Kook Lee
- Department of Pathology, Center for Prostate Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Korea
| | - Jae Young Joung
- Department of Urology, Center for Prostate Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Korea
| | - Ho Kyung Seo
- Department of Urology, Center for Prostate Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Korea
| | - Jinsoo Chung
- Department of Urology, Center for Prostate Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Korea
| | - Kang Hyun Lee
- Department of Urology, Center for Prostate Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Korea
- * E-mail:
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Kang R, Zhao S, Liu L, Li F, Li E, Luo L, Xu L, Wan S, Zhao Z. Knockdown of PSCA induces EMT and decreases metastatic potentials of the human prostate cancer DU145 cells. Cancer Cell Int 2016; 16:20. [PMID: 26981049 PMCID: PMC4791869 DOI: 10.1186/s12935-016-0295-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Accepted: 03/04/2016] [Indexed: 11/10/2022] Open
Abstract
Background Prostate stem cell antigen (PSCA) expression has been shown to correlate with prostatic carcinogenesis and prostate cancer (PCa) progression. The underlying mechanisms for these processes are currently unknown. Epithelial to mesenchymal transition (EMT) has been associated with the invasiveness and the distant metastasis of PCa. In this study, we investigated the effects of knocking down the PSCA on the cell migration, the invasiveness, and the EMT of the PCa cell line DU145 in vitro and in vivo. Methods Four target sequences of the small hairpin RNA for PSCA were designed, and the best effect knockdown sequence shRNA#1 was screened to construct the stable transfected DU145 cell line (DU145 shRNA#1), the scramble sequence was also designed to construct the stable transfected DU145 cell line(DU145 scramble). Cell migration and invasion were studied using Transwell assay. Quantitative RT-PCR, Western blot (WB) were used to quantify PSCA, E-cadherin, β-catenin, Vimentin, Fibronectin expression in DU145, DU145 scramble, DU145 shRNA#1 in vitro and in vivo. RT-PCR, immunofluorescent staining were used to quantify PSCA, E-cadherin, and Vimentin expression in vitro. EMT-related genes Snail, Slug, and Twist, were quantified by quantitative RT-PCR in vitro. Results The constructed stable knockdown of the PSCA in the DU145 cell had a silencing effect up to 90.5 %. DU145 shRNA#1 became scattered from the tightly packed colonies. It was associated with decreased cell migration and invasion. There was also an increased Vimentin and Fibronectin expression, an inhibited E-cadherin and β-catenin expression at both the mRNA and the protein levels when compared to the DU145 and the DU145 scramble in vitro and vivo. Furthermore, with the exception of the Snail, the expression of EMT-related Slug and Twist genes were upregulated. Conclusions Our data indicated that knockdown of PSCA induced EMT and reduced metastatic potentials of the DU145 cells, suggesting that PSCA played an important role in prostatic carcinogenesis and progression.
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Affiliation(s)
- Ran Kang
- Department of Urology & Andrology, Minimally Invasive Surgery Center, The First Affiliated Hospital of Guangzhou Medical University, Guangdong Provincial Key Laboratory of Urology, No.1-3, Kangda Road, Guangzhou, 510230 Guangdong Province China
| | - Shankun Zhao
- Department of Urology & Andrology, Minimally Invasive Surgery Center, The First Affiliated Hospital of Guangzhou Medical University, Guangdong Provincial Key Laboratory of Urology, No.1-3, Kangda Road, Guangzhou, 510230 Guangdong Province China
| | - Luhao Liu
- Department of Urology & Andrology, Minimally Invasive Surgery Center, The First Affiliated Hospital of Guangzhou Medical University, Guangdong Provincial Key Laboratory of Urology, No.1-3, Kangda Road, Guangzhou, 510230 Guangdong Province China
| | - Futian Li
- Department of Urology & Andrology, Minimally Invasive Surgery Center, The First Affiliated Hospital of Guangzhou Medical University, Guangdong Provincial Key Laboratory of Urology, No.1-3, Kangda Road, Guangzhou, 510230 Guangdong Province China
| | - Ermao Li
- Department of Urology & Andrology, Minimally Invasive Surgery Center, The First Affiliated Hospital of Guangzhou Medical University, Guangdong Provincial Key Laboratory of Urology, No.1-3, Kangda Road, Guangzhou, 510230 Guangdong Province China
| | - Lianmin Luo
- Department of Urology & Andrology, Minimally Invasive Surgery Center, The First Affiliated Hospital of Guangzhou Medical University, Guangdong Provincial Key Laboratory of Urology, No.1-3, Kangda Road, Guangzhou, 510230 Guangdong Province China
| | - Lihua Xu
- Department of Hematology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510230 China
| | - ShawPong Wan
- Department of Urology & Andrology, Minimally Invasive Surgery Center, The First Affiliated Hospital of Guangzhou Medical University, Guangdong Provincial Key Laboratory of Urology, No.1-3, Kangda Road, Guangzhou, 510230 Guangdong Province China
| | - Zhigang Zhao
- Department of Urology & Andrology, Minimally Invasive Surgery Center, The First Affiliated Hospital of Guangzhou Medical University, Guangdong Provincial Key Laboratory of Urology, No.1-3, Kangda Road, Guangzhou, 510230 Guangdong Province China
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Zhao Z, He J, Kang R, Zhao S, Liu L, Li F. RNA interference targeting PSCA suppresses primary tumor growth and metastasis formation of human prostate cancer xenografts in SCID mice. Prostate 2016; 76:184-98. [PMID: 26477693 DOI: 10.1002/pros.23110] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2014] [Accepted: 09/28/2015] [Indexed: 02/04/2023]
Abstract
BACKGROUND AND OBJECTIVES Prostate stem cell antigen (PSCA) is a cell surface, glycosylphosphatidylinositol (GPI)-anchored glycoprotein. Its overexpression has been detected in both local and metastatic prostate cancer (PCa), making it a potential therapeutic target. We previously reported that silencing PSCA by small interfering RNA targeting human PSCA (siRNA-PSCA) inhibited biological activity of PSCA-positive PCa cells leading to reduced proliferation, motility and invasion in vitro. In this study, we extended this in vitro findings to in vivo settings in order to investigate the effects of this specific siRNA on the tumor growth and metastasis development of PCa in vivo. MATERIALS AND METHODS The siRNA-PSCA and ectopically overexpressed-PSCA vector were constructed and transfected into human PCa PC-3M and LNCaP cells, respectively, and were subcutaneously inoculated into the male SCID mice. Tumor growth was measured with a caliper, and formation of metastasis in mice bearing xenograft tumors was studied by magnetic resonance imaging (MRI) and autopsy analysis. Western blot and immunohistochemistry were used to assess the expression levels of PSCA protein in tumor tissues from xenograft and distant metastases. RESULTS Consistent with our previous in vitro findings, the subcutaneous xenografts of PC-3M-siPSCA exhibited the almost completely inhibited expression of PSCA protein in their tumors tissues (P < 0.001 and P < 0.001, respectively), and consequently had a significant reduction in tumor growth volumes (P < 0.05 for all), and metastasis onset and sites (P < 0.001 for all) compared to those of PC-3M and PC-3M-siScrm. Conversely, LNCaP-PSCA showed significantly enhanced primary tumor growth and metastasis formation of xenografts compared to LNCaP-vehicle and LNCaP cells (P < 0.001 for all). Moreover, the up-regulated expression of PSCA protein was detected in the distant metastases of xenograft tumors from all groups. CONCLUSIONS Taken together, these observations suggest that PSCA has a promoting role in the growth and metastasis of PCa and siRNA-PSCA may be a potential therapeutic strategy for PSCA-positive PCa.
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Affiliation(s)
- Zhigang Zhao
- Department of Urology and Andrology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong Province, China
| | - Jun He
- Department of Urology and Andrology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong Province, China
| | - Ran Kang
- Department of Urology and Andrology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong Province, China
| | - Shankun Zhao
- Department of Urology and Andrology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong Province, China
| | - Luhao Liu
- Department of Urology and Andrology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong Province, China
| | - Futian Li
- Department of Urology and Andrology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong Province, China
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Inhibition of Canonical NF-κB Signaling by a Small Molecule Targeting NEMO-Ubiquitin Interaction. Sci Rep 2016; 6:18934. [PMID: 26740240 PMCID: PMC4703965 DOI: 10.1038/srep18934] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Accepted: 11/30/2015] [Indexed: 12/16/2022] Open
Abstract
The IκB kinase (IKK) complex acts as the gatekeeper of canonical NF-κB signaling, thereby regulating immunity, inflammation and cancer. It consists of the catalytic subunits IKKα and IKKβ and the regulatory subunit NEMO/IKKγ. Here, we show that the ubiquitin binding domain (UBAN) in NEMO is essential for IKK/NF-κB activation in response to TNFα, but not IL-1β stimulation. By screening a natural compound library we identified an anthraquinone derivative that acts as an inhibitor of NEMO-ubiquitin binding (iNUB). Using biochemical and NMR experiments we demonstrate that iNUB binds to NEMOUBAN and competes for interaction with methionine-1-linked linear ubiquitin chains. iNUB inhibited NF-κB activation upon UBAN-dependent TNFα and TCR/CD28, but not UBAN-independent IL-1β stimulation. Moreover, iNUB was selectively killing lymphoma cells that are addicted to chronic B-cell receptor triggered IKK/NF-κB activation. Thus, iNUB disrupts the NEMO-ubiquitin protein-protein interaction interface and thereby inhibits physiological and pathological NF-κB signaling.
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41
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Hernandez L, Kim MK, Noonan AM, Sagher E, Kohlhammer H, Wright G, Lyle LT, Steeg PS, Anver M, Bowtell DD, Annunziata CM. A dual role for Caspase8 and NF- κB interactions in regulating apoptosis and necroptosis of ovarian cancer, with correlation to patient survival. Cell Death Discov 2015; 1:15053. [PMID: 28179987 PMCID: PMC5198842 DOI: 10.1038/cddiscovery.2015.53] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2015] [Revised: 09/24/2015] [Accepted: 09/26/2015] [Indexed: 12/15/2022] Open
Abstract
Ovarian cancer is a deadly disease characterized by primary and acquired resistance to chemotherapy. We previously associated NF-κB signaling with poor survival in ovarian cancer, and functionally demonstrated this pathway as mediating proliferation, invasion and metastasis. We aimed to identify cooperating pathways in NF-κB-dependent ovarian cancer cells, using genome-wide RNA interference as a loss-of-function screen for key regulators of cell survival with IKKβ inhibition. Functional genomic screen for interactions with NF-κB in ovarian cancer showed that cells depleted of Caspase8 died better with IKKβ inhibition. Overall, low Caspase8 was associated with shorter overall survival in three independent gene expression data sets of ovarian cancers. Conversely, Caspase8 expression was markedly highest in ovarian cancer subtypes characterized by strong T-cell infiltration and better overall prognosis, suggesting that Caspase8 expression increased chemotherapy-induced cell death. We investigated the effects of Caspase8 depletion on apoptosis and necroptosis of TNFα-stimulated ovarian cancer cell lines. Inhibition of NF-κB in ovarian cancer cells switched the effects of TNFα signaling from proliferation to death. Although Caspase8-high cancer cells died by apoptosis, Caspase8 depletion downregulated NF-κB signaling, stabilized RIPK1 and promoted necroptotic cell death. Blockage of NF-κB signaling and depletion of cIAP with SMAC-mimetic further rendered these cells susceptible to killing by necroptosis. These findings have implications for anticancer strategies to improve outcome for women with low Caspase8-expressing ovarian cancer.
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Affiliation(s)
- L Hernandez
- Women’s Malignancies Branch, National Cancer Institute,
Bethesda, MD
20892-1906, USA
| | - M K Kim
- Women’s Malignancies Branch, National Cancer Institute,
Bethesda, MD
20892-1906, USA
| | - A M Noonan
- Women’s Malignancies Branch, National Cancer Institute,
Bethesda, MD
20892-1906, USA
| | - E Sagher
- Women’s Malignancies Branch, National Cancer Institute,
Bethesda, MD
20892-1906, USA
| | - H Kohlhammer
- Metabolism Branch, Center for Cancer Research, National Cancer Institute,
Bethesda, MD
20892-1906, USA
| | - G Wright
- Biometric Research Branch, Division of Cancer Treatment and Diagnosis, National
Cancer Institute, Bethesda, MD
20892-1906, USA
| | - L T Lyle
- Women’s Malignancies Branch, National Cancer Institute,
Bethesda, MD
20892-1906, USA
| | - P S Steeg
- Women’s Malignancies Branch, National Cancer Institute,
Bethesda, MD
20892-1906, USA
| | - M Anver
- Pathology/Histotechnology Laboratory, LASP, Leidos Biomedical Research, Inc.,
Frederick, MD
21702-1201, USA
| | - D D Bowtell
- Centre for Cancer Genomics and Predictive Medicine, Peter MacCallum Cancer
Centre, East Melbourne, Victoria, Australia
- The Department of Pathology, University of Melbourne, Parkville,
Victoria, Australia
| | - on behalf of the Australian Ovarian Cancer Study Group
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- Women’s Malignancies Branch, National Cancer Institute,
Bethesda, MD
20892-1906, USA
- Metabolism Branch, Center for Cancer Research, National Cancer Institute,
Bethesda, MD
20892-1906, USA
- Biometric Research Branch, Division of Cancer Treatment and Diagnosis, National
Cancer Institute, Bethesda, MD
20892-1906, USA
- Pathology/Histotechnology Laboratory, LASP, Leidos Biomedical Research, Inc.,
Frederick, MD
21702-1201, USA
- Centre for Cancer Genomics and Predictive Medicine, Peter MacCallum Cancer
Centre, East Melbourne, Victoria, Australia
- The Department of Pathology, University of Melbourne, Parkville,
Victoria, Australia
| | - C M Annunziata
- Women’s Malignancies Branch, National Cancer Institute,
Bethesda, MD
20892-1906, USA
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Lymphomagenic CARD11/BCL10/MALT1 signaling drives malignant B-cell proliferation via cooperative NF-κB and JNK activation. Proc Natl Acad Sci U S A 2015; 112:E7230-8. [PMID: 26668357 DOI: 10.1073/pnas.1507459112] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
The aggressive activated B cell-like subtype of diffuse large B-cell lymphoma is characterized by aberrant B-cell receptor (BCR) signaling and constitutive nuclear factor kappa-B (NF-κB) activation, which is required for tumor cell survival. BCR-induced NF-κB activation requires caspase recruitment domain-containing protein 11 (CARD11), and CARD11 gain-of-function mutations are recurrently detected in human diffuse large B-cell lymphoma (DLBCL). To investigate the consequences of dysregulated CARD11 signaling in vivo, we generated mice that conditionally express the human DLBCL-derived CARD11(L225LI) mutant. Surprisingly, CARD11(L225LI) was sufficient to trigger aggressive B-cell lymphoproliferation, leading to early postnatal lethality. CARD11(L225LI) constitutively associated with B-cell CLL/lymphoma 10 (BCL10) and mucosa-associated lymphoid tissue lymphoma translocation gene 1 (MALT1) to simultaneously activate the NF-κB and c-Jun N-terminal kinase (JNK) signaling cascades. Genetic deficiencies of either BCL10 or MALT1 completely rescued the phenotype, and pharmacological inhibition of JNK was, similar to NF-κB blockage, toxic to autonomously proliferating CARD11(L225LI)-expressing B cells. Moreover, constitutive JNK activity was observed in primary human activated B cell-like (ABC)-DLBCL specimens, and human ABC-DLBCL cells were also sensitive to JNK inhibitors. Thus, our results demonstrate that enforced activation of CARD11/BCL10/MALT1 signaling is sufficient to drive transformed B-cell expansion in vivo and identify the JNK pathway as a therapeutic target for ABC-DLBCL.
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Sonn GA, Behesnilian AS, Jiang ZK, Zettlitz KA, Lepin EJ, Bentolila LA, Knowles SM, Lawrence D, Wu AM, Reiter RE. Fluorescent Image-Guided Surgery with an Anti-Prostate Stem Cell Antigen (PSCA) Diabody Enables Targeted Resection of Mouse Prostate Cancer Xenografts in Real Time. Clin Cancer Res 2015; 22:1403-12. [PMID: 26490315 DOI: 10.1158/1078-0432.ccr-15-0503] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2015] [Accepted: 10/06/2015] [Indexed: 01/13/2023]
Abstract
PURPOSE The inability to visualize cancer during prostatectomy contributes to positive margins, cancer recurrence, and surgical side effects. A molecularly targeted fluorescent probe offers the potential for real-time intraoperative imaging. The goal of this study was to develop a probe for image-guided prostate cancer surgery. EXPERIMENTAL DESIGN An antibody fragment (cys-diabody, cDb) against prostate stem cell antigen (PSCA) was conjugated to a far-red fluorophore, Cy5. The integrity and binding of the probe to PSCA was confirmed by gel electrophoresis, size exclusion, and flow cytometry, respectively. Subcutaneous models of PSCA-expressing xenografts were used to assess the biodistribution and in vivo kinetics, whereas an invasive intramuscular model was utilized to explore the performance of Cy5-cDb-mediated fluorescence guidance in representative surgical scenarios. Finally, a prospective, randomized study comparing surgical resection with and without fluorescent guidance was performed to determine whether this probe could reduce the incidence of positive margins. RESULTS Cy5-cDb demonstrated excellent purity, stability, and specific binding to PSCA. In vivo imaging showed maximal signal-to-background ratios at 6 hours. In mice carrying PSCA(+) and negative (-) dual xenografts, the mean fluorescence ratio of PSCA(+/-) tumors was 4.4:1. In surgical resection experiments, residual tumors <1 mm that were missed on white light surgery were identified and resected using fluorescence guidance, which reduced the incidence of positive surgical margins (0/8) compared with white light surgery alone (7/7). CONCLUSIONS Fluorescently labeled cDb enables real-time in vivo imaging of prostate cancer xenografts in mice, and facilitates more complete tumor removal than conventional white light surgery alone.
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Affiliation(s)
- Geoffrey A Sonn
- Department of Urology, University of California, Los Angeles, California
| | | | - Ziyue Karen Jiang
- Department of Urology, University of California, Los Angeles, California
| | - Kirstin A Zettlitz
- Molecular and Medical Pharmacology, University of California, Los Angeles, California. Crump Institute for Molecular Imaging, University of California, Los Angeles, California
| | - Eric J Lepin
- Molecular and Medical Pharmacology, University of California, Los Angeles, California. Crump Institute for Molecular Imaging, University of California, Los Angeles, California
| | - Laurent A Bentolila
- Deparment of Chemistry and Biochemistry, University of California, Los Angeles, California. California NanoSystems Institute, University of California, Los Angeles, California
| | - Scott M Knowles
- Molecular and Medical Pharmacology, University of California, Los Angeles, California. Crump Institute for Molecular Imaging, University of California, Los Angeles, California
| | - Daniel Lawrence
- Molecular and Medical Pharmacology, University of California, Los Angeles, California
| | - Anna M Wu
- Molecular and Medical Pharmacology, University of California, Los Angeles, California. Crump Institute for Molecular Imaging, University of California, Los Angeles, California
| | - Robert E Reiter
- Department of Urology, University of California, Los Angeles, California.
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Survival of human lymphoma cells requires B-cell receptor engagement by self-antigens. Proc Natl Acad Sci U S A 2015; 112:13447-54. [PMID: 26483459 DOI: 10.1073/pnas.1514944112] [Citation(s) in RCA: 125] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
The activated B-cell-like (ABC) subtype of diffuse large B-cell lymphoma (DLBCL) relies on chronic active B-cell receptor (BCR) signaling. BCR pathway inhibitors induce remissions in a subset of ABC DLBCL patients. BCR microclusters on the surface of ABC cells resemble those generated following antigen engagement of normal B cells. We speculated that binding of lymphoma BCRs to self-antigens initiates and maintains chronic active BCR signaling in ABC DLBCL. To assess whether antigenic engagement of the BCR is required for the ongoing survival of ABC cells, we developed isogenic ABC cells that differed solely with respect to the IgH V region of their BCRs. In competitive assays with wild-type cells, substitution of a heterologous V region impaired the survival of three ABC lines. The viability of one VH4-34(+) ABC line and the ability of its BCR to bind to its own cell surface depended on V region residues that mediate the intrinsic autoreactivity of VH4-34 to self-glycoproteins. The BCR of another ABC line reacted with self-antigens in apoptotic debris, and the survival of a third ABC line was sustained by reactivity of its BCR to an idiotypic epitope in its own V region. Hence, a diverse set of self-antigens is responsible for maintaining the malignant survival of ABC DLBCL cells. IgH V regions used by the BCRs of ABC DLBCL biopsy samples varied in their ability to sustain survival of these ABC lines, suggesting a screening procedure to identify patients who might benefit from BCR pathway inhibition.
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The Quantified Level of Circulating Prostate Stem Cell Antigen mRNA relative to GAPDH Level Is a Clinically Significant Indictor for Predicting Biochemical Recurrence in Prostate Cancer Patients after Radical Prostatectomy. BIOMED RESEARCH INTERNATIONAL 2015; 2015:292454. [PMID: 26527100 PMCID: PMC4615861 DOI: 10.1155/2015/292454] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/10/2015] [Revised: 05/09/2015] [Accepted: 05/13/2015] [Indexed: 02/05/2023]
Abstract
The study quantified the relative absolute PSCA level in relation to the glyceraldehyde 3-phosphate dehydrogenase (GAPDH) level in the peripheral blood of 478 hormone-naive prostate cancer (PC) patients who underwent radical prostatectomy from 2005 to 2012 and evaluated its prognostic significance as a risk factor for predicting biochemical recurrence (BCR), compared to known parameters. Nested real-time polymerase chain reaction (RT-PCR) and gel electrophoresis detected PSCA levels and measured the PSCA/GAPDH ratio. Clinicopathological data from the institutional database were examined to determine the adequate cut-off level to predict postoperative BCR. A total of 110 patients had a positive PSCA result (23.0%) via RT-PCR (mean blood ratio 1.1 ± 0.4). The BCR was significantly higher in the PSCA-positive detection group (p = 0.009). A multivariate model was created to show that a PSCA/GAPDH ratio between 1.0 and 1.5 (HR 12.722), clinical T2c stage (HR 0.104), preoperative PSA (HR 1.225), extraprostatic capsule extension (HR 0.006), lymph node dissection (HR 16.437), and positive resection margin (HR 27.453) were significant predictive factors for BCR (p < 0.05). The study showed successful quantification of PSCA with its significance for BCR-related risk factor; however, further studies are needed to confirm its clinical predictive value.
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Dubanet L, Bentayeb H, Petit B, Olivrie A, Saada S, de la Cruz-Morcillo MA, Lalloué F, Gourin MP, Bordessoule D, Faumont N, Delage-Corre M, Fauchais AL, Jauberteau MO, Troutaud D. Anti-apoptotic role and clinical relevance of neurotrophins in diffuse large B-cell lymphomas. Br J Cancer 2015; 113:934-44. [PMID: 26284337 PMCID: PMC4578080 DOI: 10.1038/bjc.2015.274] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2015] [Revised: 06/11/2015] [Accepted: 06/22/2015] [Indexed: 12/22/2022] Open
Abstract
Background: Diffuse large B-cell lymphoma (DLBCL) is a fatal malignancy that needs to identify new targets for additional therapeutic options. This study aimed to clarify the clinical and biological significance of endogenous neurotrophin (nerve growth factor (NGF) and brain-derived neurotrophic factor (BDNF)) in DLBCL biopsy samples and cell lines. Methods: We analysed expression of NGF, BDNF, and their receptors (Trk, p75NTR) in 51 biopsies and cell lines by immunohistochemistry, immunofluorescence, and western blotting. To investigate the biological role of BDNF/TrkB/p75NTR axis, effects of neurotrophin signalling inhibition were determined on tumour cell survival and vascular endothelial growth factor (VEGF) secretion. The pharmacological pan-Trk inhibitor K252a was used for in vitro and in vivo studies. Results: A BDNF/TrkB axis was expressed in all biopsies, which was independent of the germinal centre B-cell (GCB)/non-GCB profile. p75NTR, TrkB, and BDNF tumour scores were significantly correlated and high NGF expression was significantly associated with MUM1/IRF4, and the non-GCB subtype. Diffuse large B-cell lymphoma cell lines co-expressed neurotrophins and their receptors. The full-length TrkB receptor was found in all cell lines, which was also phosphorylated at Tyr-817. p75NTR was associated to Trk and not to its cell death co-receptor sortilin. In vitro, inhibition of neurotrophin signalling induced cell apoptosis. K252a caused cell apoptosis, decreased VEGF secretion, and potentiated rituximab effect, notably in less rituximab-sensitive cells. In vivo, K252a significantly reduced tumour growth and potentiated the effects of rituximab in a GCB-DLBCL xenograft model. Conclusions: This work argues for a pro-survival role of endogenous neurotrophins in DLBCLs and inhibition of Trk signalling might be a potential treatment strategy for rituximab resistant subgroups.
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Affiliation(s)
- Lydie Dubanet
- EA3842, Facultés de Médecine et de Pharmacie, Université de Limoges, 2 rue du Docteur Marcland, 87025 Limoges Cedex, France
| | - Hafidha Bentayeb
- EA3842, Facultés de Médecine et de Pharmacie, Université de Limoges, 2 rue du Docteur Marcland, 87025 Limoges Cedex, France
| | - Barbara Petit
- Laboratoire d'Anatomie-Pathologique, CHU de Limoges, 2 Avenue Martin Luther King, 87000 Limoges Cedex, France
| | - Agnès Olivrie
- Structure Régionale de Référence des Lymphomes du Limousin, CHU de Limoges, 2 Avenue Martin Luther King, 87000 Limoges Cedex, France.,Service d'Hématologie Clinique, CHU de Limoges, 2 Avenue Martin Luther King, 87000 Limoges Cedex, France
| | - Sofiane Saada
- EA3842, Facultés de Médecine et de Pharmacie, Université de Limoges, 2 rue du Docteur Marcland, 87025 Limoges Cedex, France
| | - Miguel A de la Cruz-Morcillo
- EA3842, Facultés de Médecine et de Pharmacie, Université de Limoges, 2 rue du Docteur Marcland, 87025 Limoges Cedex, France
| | - Fabrice Lalloué
- EA3842, Facultés de Médecine et de Pharmacie, Université de Limoges, 2 rue du Docteur Marcland, 87025 Limoges Cedex, France
| | - Marie-Pierre Gourin
- Structure Régionale de Référence des Lymphomes du Limousin, CHU de Limoges, 2 Avenue Martin Luther King, 87000 Limoges Cedex, France.,Service d'Hématologie Clinique, CHU de Limoges, 2 Avenue Martin Luther King, 87000 Limoges Cedex, France
| | - Dominique Bordessoule
- Structure Régionale de Référence des Lymphomes du Limousin, CHU de Limoges, 2 Avenue Martin Luther King, 87000 Limoges Cedex, France.,Service d'Hématologie Clinique, CHU de Limoges, 2 Avenue Martin Luther King, 87000 Limoges Cedex, France.,UMR CNRS 7276, Facultés de Médecine et de Pharmacie, Université de Limoges, 2 rue du Docteur Marcland 87025, Limoges Cedex, France
| | - Nathalie Faumont
- UMR CNRS 7276, Facultés de Médecine et de Pharmacie, Université de Limoges, 2 rue du Docteur Marcland 87025, Limoges Cedex, France
| | - Manuela Delage-Corre
- Laboratoire d'Anatomie-Pathologique, CHU de Limoges, 2 Avenue Martin Luther King, 87000 Limoges Cedex, France
| | - Anne-Laure Fauchais
- EA3842, Facultés de Médecine et de Pharmacie, Université de Limoges, 2 rue du Docteur Marcland, 87025 Limoges Cedex, France
| | - Marie-Odile Jauberteau
- EA3842, Facultés de Médecine et de Pharmacie, Université de Limoges, 2 rue du Docteur Marcland, 87025 Limoges Cedex, France
| | - Danielle Troutaud
- EA3842, Facultés de Médecine et de Pharmacie, Université de Limoges, 2 rue du Docteur Marcland, 87025 Limoges Cedex, France
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Cellular Plasticity in Prostate Cancer Bone Metastasis. Prostate Cancer 2015; 2015:651580. [PMID: 26146569 PMCID: PMC4469842 DOI: 10.1155/2015/651580] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2015] [Accepted: 05/12/2015] [Indexed: 12/13/2022] Open
Abstract
Purpose. Experimental data suggest that tumour cells can reversibly transition between epithelial and mesenchymal states (EMT and MET), a phenomenon known as cellular plasticity. The aim of this review was to appraise the clinical evidence for the role of cellular plasticity in prostate cancer (PC) bone metastasis. Methods. An electronic search was performed using PubMed for studies that have examined the differential expression of epithelial, mesenchymal, and stem cell markers in human PC bone metastasis tissues. Results. The review included nineteen studies. More than 60% of the studies used ≤20 bone metastasis samples, and there were several sources of heterogeneity between studies. Overall, most stem cell markers analysed, except for CXCR4, were positively expressed in bone metastasis tissues, while the expression of EMT and MET markers was heterogeneous between and within samples. Several EMT and stemness markers that are involved in osteomimicry, such as Notch, Met receptor, and Wnt/β pathway, were highly expressed in bone metastases. Conclusions. Clinical findings support the role of cellular plasticity in PC bone metastasis and suggest that epithelial and mesenchymal states cannot be taken in isolation when targeting PC bone metastasis. The paper also highlights several challenges in the clinical detection of cellular plasticity.
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Lenz G. Insights into the Molecular Pathogenesis of Activated B-Cell-like Diffuse Large B-Cell Lymphoma and Its Therapeutic Implications. Cancers (Basel) 2015; 7:811-22. [PMID: 26010601 PMCID: PMC4491687 DOI: 10.3390/cancers7020812] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2015] [Accepted: 05/14/2015] [Indexed: 12/11/2022] Open
Abstract
Within the last couple of years, the understanding of the molecular mechanisms that drive the pathogenesis of diffuse large B-cell lymphoma (DLBCL) has significantly improved. Large-scale gene expression profiling studies have led to the discovery of several molecularly defined subtypes that are characterized by specific oncogene addictions and significant differences in their outcome. Next generation sequencing efforts combined with RNA interference screens frequently identify crucial oncogenes that lead to constitutive activation of various signaling pathways that drive lymphomagenesis. This review summarizes our current understanding of the molecular pathogenesis of the activated B-cell-like (ABC) DLBCL subtype that is characterized by poor prognosis. A special emphasis is put on findings that might impact therapeutic strategies of affected patients.
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Affiliation(s)
- Georg Lenz
- Translational Oncology, Department of Medicine A, Albert-Schweitzer Campus 1, University Hospital Münster, 48149 Münster, Germany.
- Cluster of Excellence EXC 1003, Cells in Motion, 48149 Münster, Germany .
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Inhibition of Oncogenic Transcription Factor REL by the Natural Product Derivative Calafianin Monomer 101 Induces Proliferation Arrest and Apoptosis in Human B-Lymphoma Cell Lines. Molecules 2015; 20:7474-94. [PMID: 25915462 PMCID: PMC4863944 DOI: 10.3390/molecules20057474] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2015] [Revised: 04/12/2015] [Accepted: 04/20/2015] [Indexed: 12/25/2022] Open
Abstract
Increased activity of transcription factor NF-κB has been implicated in many B-cell lymphomas. We investigated effects of synthetic compound calafianin monomer (CM101) on biochemical and biological properties of NF-κB. In human 293 cells, CM101 selectively inhibited DNA binding by overexpressed NF-κB subunits REL (human c-Rel) and p65 as compared to NF-κB p50, and inhibition of REL and p65 DNA binding by CM101 required a conserved cysteine residue. CM101 also inhibited DNA binding by REL in human B-lymphoma cell lines, and the sensitivity of several B-lymphoma cell lines to CM101-induced proliferation arrest and apoptosis correlated with levels of cellular and nuclear REL. CM101 treatment induced both phosphorylation and decreased expression of anti-apoptotic protein Bcl-XL, a REL target gene product, in sensitive B-lymphoma cell lines. Ectopic expression of Bcl-XL protected SUDHL-2 B-lymphoma cells against CM101-induced apoptosis, and overexpression of a transforming mutant of REL decreased the sensitivity of BJAB B-lymphoma cells to CM101-induced apoptosis. Lipopolysaccharide-induced activation of NF-κB signaling upstream components occurred in RAW264.7 macrophages at CM101 concentrations that blocked NF-κB DNA binding. Direct inhibitors of REL may be useful for treating B-cell lymphomas in which REL is active, and may inhibit B-lymphoma cell growth at doses that do not affect some immune-related responses in normal cells.
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50
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Pore D, Bodo J, Danda A, Yan D, Phillips JG, Lindner D, Hill BT, Smith MR, Hsi ED, Gupta N. Identification of Ezrin-Radixin-Moesin proteins as novel regulators of pathogenic B-cell receptor signaling and tumor growth in diffuse large B-cell lymphoma. Leukemia 2015; 29:1857-67. [PMID: 25801911 PMCID: PMC4558318 DOI: 10.1038/leu.2015.86] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2014] [Revised: 03/18/2015] [Accepted: 03/19/2015] [Indexed: 02/07/2023]
Abstract
Diffuse large B-cell lymphoma (DLBCL) is a hematological cancer associated with an aggressive clinical course. The predominant subtypes of DLBCL display features of chronic or tonic B-cell antigen receptor (BCR) signaling. However, it is not known whether the spatial organization of the BCR contributes to the regulation of pro-survival signaling pathways and cell growth. Here, we show that primary DLBCL tumors and patient-derived DLBCL cell lines contain high levels of phosphorylated Ezrin-Radixin-Moesin (ERM) proteins. The surface BCRs in both activated B cell and germinal B cell subtype DLBCL cells co-segregate with phosphoERM suggesting that the cytoskeletal network may support localized BCR signaling and contribute to pathogenesis. Indeed, ablation of membrane-cytoskeletal linkages by dominant-negative mutants, pharmacological inhibition and knockdown of ERM proteins disrupted cell surface BCR organization, inhibited proximal and distal BCR signaling, and reduced the growth of DLBCL cell lines. In vivo administration of the ezrin inhibitor retarded the growth of DLBCL tumor xenografts, concomitant with reduction in intratumor phosphoERM levels, dampened pro-survival signaling and induction of apoptosis. Our results reveal a novel ERM-based spatial mechanism that is coopted by DLBCL cells to sustain tumor cell growth and survival.
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Affiliation(s)
- D Pore
- Department of Immunology, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA
| | - J Bodo
- Department of Clinical Pathology, Institute of Pathology and Laboratory Medicine, Cleveland Clinic, Cleveland, OH, USA
| | - A Danda
- Department of Immunology, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA
| | - D Yan
- Department of Immunology, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA
| | - J G Phillips
- Department of Translational Hematology and Oncology Research, Cleveland Clinic, Cleveland, OH, USA
| | - D Lindner
- Department of Translational Hematology and Oncology Research, Cleveland Clinic, Cleveland, OH, USA
| | - B T Hill
- Department of Hematology and Medical Oncology, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH, USA
| | - M R Smith
- Department of Hematology and Medical Oncology, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH, USA
| | - E D Hsi
- Department of Clinical Pathology, Institute of Pathology and Laboratory Medicine, Cleveland Clinic, Cleveland, OH, USA
| | - N Gupta
- Department of Immunology, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA
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