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Hu X, Liao J, Shan H, He H, Du Z, Guan M, Hu J, Li J, Gu B. A novel carboxyl polymer-modified upconversion luminescent nanoprobe for detection of prostate-specific antigen in the clinical gray zonebase by flow immunoassay strip. Methods 2023; 215:10-16. [PMID: 37169320 DOI: 10.1016/j.ymeth.2023.05.001] [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: 03/27/2023] [Revised: 05/04/2023] [Accepted: 05/06/2023] [Indexed: 05/13/2023] Open
Abstract
Prostate specific antigen (PSA) is a widely-used biomarker for the diagnosis, screening, and prognosis of prostate cancer (PCa). It is critical to develop a rapid and convenient method to accurately detect PSA levels, especially when the PSA levels are in the clinical gray area of 4-10 ng/mL. We developed a novel upconversion nanoparticle (UCNP)-based fluorescence lateral flow test strip for qualitatively and quantitatively detecting PSA. The carboxyl group-modified UCNPs (UCNP-COOH) were labeled with anti-PSA antibodies via 1-ethyl-3-(3-(dimethylamino)propyl) carbodiimide (EDC) and N-hydroxysuccinimide (NHS) as labeling probes to recognize PSA. The fluorescence intensity of the UCNP-probe was then measured with a laser fluorescence scanner. A total of 1397 serum and 20 fingertip blood samples were collected to validate the UCNP strip. A reliable correlation between the area ratio (TC), reflecting the fluorescence intensity of the test/control line, and the PSA concentration was observed (r = 0.9986). The dose-dependent luminescence enhancement showed good linearity in the PSA concentration range from 0.1 to 100.0 ng/mL with a detection limit of 0.1 ng/mL. Our UCNP POCT strip demonstrated excellent accuracy, anti-interference and stability in the gray zone (4-10 ng/mL) of PSA clinical application and outperformed other PSA test strips. The UCNP strip showed good consistency with the Roche chemiluminescence assay in 1397 serum samples. It also showed good performance for PSA detection using fingertip blood samples. This novel UCNP-based test strip could be a sensitive and reliable POCT assay to detect PSA, facilitating the diagnosis and surveillance of PCa.
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Affiliation(s)
- Xuejiao Hu
- Department of Clinical Laboratory Medicine, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong 510000, China
| | - Jianfeng Liao
- Department of Clinical Laboratory Medicine, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong 510000, China
| | - Huizhuang Shan
- Department of Clinical Laboratory Medicine, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong 510000, China
| | - Hao He
- Shenzhen Light Life Technology Co., Ltd., Shenzhen 518107, China
| | - Zhongbo Du
- Shenzhen Light Life Technology Co., Ltd., Shenzhen 518107, China
| | - Ming Guan
- Shenzhen Light Life Technology Co., Ltd., Shenzhen 518107, China
| | - Jiwen Hu
- Central Medical Laboratory, Shenzhen Luohu Hospital, Shenzhen 518001, China
| | - Jing Li
- Laboratory Medicine, Panzhihua Central Hospital, Panzhihua 617026, China.
| | - Bing Gu
- Department of Clinical Laboratory Medicine, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong 510000, China.
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2
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Erzurumlu Y, Catakli D, Dogan HK. Potent carotenoid astaxanthin expands the anti-cancer activity of cisplatin in human prostate cancer cells. J Nat Med 2023; 77:572-583. [PMID: 37130999 DOI: 10.1007/s11418-023-01701-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Accepted: 04/12/2023] [Indexed: 05/04/2023]
Abstract
Prostate cancer (PCa) is the second most common type of cancer and the sixth cause of death in men worldwide. Radiotherapy and immunotherapy are commonly used in treating PCa, but understanding the crosstalk mechanisms of carcinogenesis and new therapeutic approaches is essential for supporting poor diagnosis and existing therapies. Astaxanthin (ASX) is a member of the xanthophyll family that is an oxygenated derivative of carotenoids whose synthesis is in plant extracts from lycopene. ASX has protective effects on various diseases, such as Parkinson's disease and cancer by showing potent antioxidant and anti-inflammatory properties. However, there is an ongoing need for a detailed investigation of the molecular mechanism of action to expand its therapeutic use. In the present study, we showed the new regulatory role of ASX in PCa cells by affecting the unfolded protein response (UPR) signaling, autophagic activity, epithelial-mesenchymal transition (EMT) and regulating the expression level of angiogenesis-related protein vascular endothelial growth factor A (VEGF-A), proto-oncogene c-Myc and prostate-specific antigen (PSA). Additionally, we determined that it exhibited synergistic action with cisplatin and significantly enhanced apoptotic cell death in PCa cells. Present findings suggest that ASX may be a potent adjuvant therapeutic option in PCa treatment when used alone or combined with chemotherapeutics. Schematic illustration of the biochemical activity of astaxanthin and its combination with cisplatin.
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Affiliation(s)
- Yalcin Erzurumlu
- Department of Biochemistry, Faculty of Pharmacy, Suleyman Demirel University, 32260, Isparta, Turkey.
| | - Deniz Catakli
- Department of Pharmacology, Faculty of Medicine, Suleyman Demirel University, 32260, Isparta, Turkey
| | - Hatice Kubra Dogan
- Department of Bioengineering, Institute of Science, Suleyman Demirel University, 32260, Isparta, Turkey
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3
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Li H, Ma Z, Che Z, Li Q, Fan J, Zhou Z, Wu Y, Jin Y, Liang P, Che X. Comprehensive role of prostate-specific antigen identified with proteomic analysis in prostate cancer. J Cell Mol Med 2020; 24:10202-10215. [PMID: 33107155 PMCID: PMC7520270 DOI: 10.1111/jcmm.15634] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Accepted: 06/25/2020] [Indexed: 12/11/2022] Open
Abstract
Current treatments including androgen deprivation fail to prevent prostate cancer (PrCa) from progressing to castration-resistant PrCa (CRPC). Accumulating evidence highlights the relevance of prostate-specific antigen (PSA) in the development and progression of PrCa. The underlying mechanism whereby PSA functions in PrCa, however, has yet been elucidated. We demonstrated that PSA knockdown attenuated tumorigenesis and metastasis of PrCa C4-2 cells in vitro and in vivo, whereas promoted the apoptosis in vitro. To illuminate the comprehensive role of PSA in PrCa, we performed an isobaric tag for relative and absolute quantitation (iTRAQ)-based proteomic analysis to explore the proteomic change induced by PSA knockdown. Among 121 differentially expressed proteins, 67 proteins were up-regulated, while 54 proteins down-regulated. Bioinformatics analysis was used to explore the mechanism through which PSA exerts influence on PrCa. Protein-protein interaction analysis showed that PSA may mediate POTEF, EPHA3, RAD51C, HPGD and MCM4 to promote the initiation and progression of PrCa. We confirmed that PSA knockdown induced the up-regulation of MCM4 and RAD51C, while it down-regulated POTEF and EPHA3; meanwhile, MCM4 was higher in PrCa para-cancerous tissue than in cancerous tissue, suggesting that PSA may facilitate the tumorigenesis by mediating MCM4. Our findings suggest that PSA plays a comprehensive role in the development and progression of PrCa.
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Affiliation(s)
- Haoyong Li
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Zhe Ma
- Department of Urology, the First Affiliated Hospital of Hainan Medical University, Haikou, China
| | - Zhifei Che
- Department of Urology, the First Affiliated Hospital of Hainan Medical University, Haikou, China
| | - Qi Li
- Department of Urology, the First Affiliated Hospital of Hainan Medical University, Haikou, China
| | - Jinfeng Fan
- Department of Urology, the First Affiliated Hospital of Hainan Medical University, Haikou, China
| | - Zhiyan Zhou
- Department of Urology, the First Affiliated Hospital of Hainan Medical University, Haikou, China
| | - Yaoxi Wu
- Department of Urology, the First Affiliated Hospital of Hainan Medical University, Haikou, China
| | - Yingxia Jin
- Central Laboratory, Renmin Hospital of Wuhan University, Wuhan, China
| | - Peiyu Liang
- Department of Urology, the First Affiliated Hospital of Hainan Medical University, Haikou, China
| | - Xianping Che
- Department of Urology, The Second Affiliated Hospital of Hainan Medical University, Haikou, China
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4
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Moradi A, Srinivasan S, Clements J, Batra J. Beyond the biomarker role: prostate-specific antigen (PSA) in the prostate cancer microenvironment. Cancer Metastasis Rev 2020; 38:333-346. [PMID: 31659564 DOI: 10.1007/s10555-019-09815-3] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The prostate-specific antigen (PSA) blood test is the accepted biomarker of tumor recurrence. PSA levels in serum correlate with disease progression, though its diagnostic accuracy is questionable. As a result, significant progress has been made in developing modified PSA tests such as PSA velocity, PSA density, 4Kscore, PSA glycoprofiling, Prostate Health Index, and the STHLM3 test. PSA, a serine protease, is secreted from the epithelial cells of the prostate. PSA has been suggested as a molecular target for prostate cancer therapy due to the fact that it is not only active in prostate tissue but also has a pivotal role on prostate cancer signaling pathways including proliferation, invasion, metastasis, angiogenesis, apoptosis, immune response, and tumor microenvironment regulation. Here, we summarize the current standing of PSA in prostate cancer progression as well as its utility in prostate cancer therapeutic approaches with an emphasis on the role of PSA in the tumor microenvironment.
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Affiliation(s)
- Afshin Moradi
- School of Biomedical Sciences, Faculty of Health, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Australia.,Translational Research Institute, Queensland University of Technology, Brisbane, Australia
| | - Srilakshmi Srinivasan
- School of Biomedical Sciences, Faculty of Health, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Australia.,Translational Research Institute, Queensland University of Technology, Brisbane, Australia
| | - Judith Clements
- School of Biomedical Sciences, Faculty of Health, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Australia.,Translational Research Institute, Queensland University of Technology, Brisbane, Australia
| | - Jyotsna Batra
- School of Biomedical Sciences, Faculty of Health, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Australia. .,Translational Research Institute, Queensland University of Technology, Brisbane, Australia.
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5
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Bonk S, Kluth M, Hube-Magg C, Polonski A, Soekeland G, Makropidi-Fraune G, Möller-Koop C, Witt M, Luebke AM, Hinsch A, Burandt E, Steurer S, Clauditz TS, Schlomm T, Perez D, Graefen M, Heinzer H, Huland H, Izbicki JR, Wilczak W, Minner S, Sauter G, Simon R. Prognostic and diagnostic role of PSA immunohistochemistry: A tissue microarray study on 21,000 normal and cancerous tissues. Oncotarget 2019; 10:5439-5453. [PMID: 31534629 PMCID: PMC6739211 DOI: 10.18632/oncotarget.27145] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Accepted: 07/17/2019] [Indexed: 12/19/2022] Open
Abstract
To assess the prognostic and diagnostic utility of PSA immunostaining, tissue microarrays containing 17,747 prostate cancers, 3,442 other tumors from 82 different (sub) types and 608 normal tissues were analyzed at two different antibody concentrations (1:100 and 1:800). In normal tissues, PSA expression was limited to prostate epithelial cells. In prostate cancers, PSA staining was seen in 99.9–100% (1:800–1:100) primary tumors, 98.7–99.7% of advanced recurrent cancers, in 84.6–91.4% castration resistant cancers, and in 7.7–18.8% of 16 small cell carcinomas. Among extraprostatic tumors, PSA stained positive in 0–3 (1:800-1:100) of 19 osteosarcomas, 1-2 of 34 ovarian cancers, 0-2 of 35 malignant mesotheliomas, 0–1 of 21 thyroid gland carcinomas and 0–1 of 26 large cell lung cancers. Reduced staining intensity and loss of apical staining were strongly linked to unfavorable tumor phenotype and poor prognosis (p
< 0.0001 each). This was all the more the case if a combined “PSA pattern score” was built from staining intensity and pattern. The prognostic impact of the “PSA pattern score” was independent of established pre- and postoperative clinico-pathological prognostic features. In conclusion, PSA immunostaining is a strong prognostic parameter in prostate cancer and has high specificity for prostate cancer at a wide range of antibody dilutions.
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Affiliation(s)
- Sarah Bonk
- General, Visceral and Thoracic Surgery Department, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Martina Kluth
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Claudia Hube-Magg
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Adam Polonski
- General, Visceral and Thoracic Surgery Department, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Greta Soekeland
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | | | - Christina Möller-Koop
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Melanie Witt
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Andreas M Luebke
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Andrea Hinsch
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Eike Burandt
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Stefan Steurer
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Till S Clauditz
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Thorsten Schlomm
- Urology Clinic, Charite - Universitätsmedizin Berlin, Berlin, Germany
| | - Daniel Perez
- General, Visceral and Thoracic Surgery Department, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Markus Graefen
- Martini Clinic, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Hans Heinzer
- Martini Clinic, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Hartwig Huland
- Martini Clinic, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Jakob R Izbicki
- General, Visceral and Thoracic Surgery Department, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Waldemar Wilczak
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Sarah Minner
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Guido Sauter
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Ronald Simon
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
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6
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Matin F, Jeet V, Srinivasan S, Cristino AS, Panchadsaram J, Clements JA, Batra J. MicroRNA-3162-5p-Mediated Crosstalk between Kallikrein Family Members Including Prostate-Specific Antigen in Prostate Cancer. Clin Chem 2019; 65:771-780. [PMID: 31018918 DOI: 10.1373/clinchem.2018.295824] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Accepted: 02/05/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND MicroRNAs mediate biological processes through preferential binding to the 3' untranslated region (3' UTR) of target genes. Studies have shown their association with prostate cancer (PCa) risk through single-nucleotide polymorphisms (SNPs), known as miRSNPs. In a European cohort, 22 PCa risk-associated miRSNPs have been identified. The most significant miRSNP in the 3' UTR of Kallikrein-related peptidase 3 (KLK3) created a binding site for miR-3162-5p. Here we investigated the miR-3162-5p-KLK interaction and the clinical implication of miR-3162-5p in PCa. METHODS We tested the role of miR-3162-5p in PCa etiology using IncuCyte live-cell imaging and anchorage-independent growth assays. The effect of miR-3162-5p on KLK and androgen receptor (AR) expression was measured by RT-quantitative (q)PCR and target pulldown assays. KLK3 proteolytic activity was determined by DELFIA® immunoassay. Mass spectrometry identified pathways affected by miR-3162-5p. miR-3162-5p expression was measured in clinical samples using RT-qPCR. RESULTS miR-3162-5p affected proliferation, migration, and colony formation of LNCaP cells by regulating the expression of KLK2-4 and AR by direct targeting. KLK3 protein expression was regulated by miR-3162-5p consistent with lower KLK3 proteolytic activity observed in LNCaP-conditioned media. KLK/AR pulldown and mass spectrometry analysis showed a potential role of miR-3162-5p in metabolic pathways via KLK/AR and additional targets. Increased miR-3162-5p expression was observed in prostate tumor tissues with higher Gleason grade. CONCLUSIONS Our study provides an insight into possible involvement of miR-3162-5p in PCa etiology by targeting KLKs and AR. It highlights clinical utility of miR-3162-5p and its interactive axis as a new class of biomarkers and therapeutic targets for PCa.
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Affiliation(s)
- Farhana Matin
- School of Biomedical Sciences, Faculty of Health, Institute of Health and Biomedical Innovation, Queensland University of Technology, Australian Prostate Cancer Research Centre-Queensland (APCRC-Q), Translational Research Institute, Brisbane, Australia
| | - Varinder Jeet
- School of Biomedical Sciences, Faculty of Health, Institute of Health and Biomedical Innovation, Queensland University of Technology, Australian Prostate Cancer Research Centre-Queensland (APCRC-Q), Translational Research Institute, Brisbane, Australia
| | - Srilakshmi Srinivasan
- School of Biomedical Sciences, Faculty of Health, Institute of Health and Biomedical Innovation, Queensland University of Technology, Australian Prostate Cancer Research Centre-Queensland (APCRC-Q), Translational Research Institute, Brisbane, Australia
| | - Alexandre S Cristino
- University of Queensland Diamantina Institute (UQDI), Faculty of Medicine, Translational Research Institute, University of Queensland, Brisbane, Australia
| | - Janaththani Panchadsaram
- School of Biomedical Sciences, Faculty of Health, Institute of Health and Biomedical Innovation, Queensland University of Technology, Australian Prostate Cancer Research Centre-Queensland (APCRC-Q), Translational Research Institute, Brisbane, Australia
| | | | - Jyotsna Batra
- School of Biomedical Sciences, Faculty of Health, Institute of Health and Biomedical Innovation, Queensland University of Technology, Australian Prostate Cancer Research Centre-Queensland (APCRC-Q), Translational Research Institute, Brisbane, Australia;
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7
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Kostova MB, Nathaniel Brennen W, Lopez D, Anthony L, Wang H, Platz E, Denmeade SR. PSA-alpha-2-macroglobulin complex is enzymatically active in the serum of patients with advanced prostate cancer and can degrade circulating peptide hormones. Prostate 2018; 78:819-829. [PMID: 29659051 PMCID: PMC8147660 DOI: 10.1002/pros.23539] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Accepted: 03/28/2018] [Indexed: 12/12/2022]
Abstract
BACKGROUND Prostate cancer cells produce high levels of the serine protease Prostate-Specific Antigen (PSA). PSA is enzymatically active in the tumor microenvironment but is presumed to be enzymatically inactive in the blood due to complex formation with serum protease inhibitors α-1-antichymotrypsin and α-2-macroglobulin (A2M). PSA-A2M complexes cannot be measured by standard ELISA assays and are also rapidly cleared from the circulation. Thus the exact magnitude of PSA production by prostate cancer cells is not easily measured. The PSA complexed to A2M is unable to cleave proteins but maintains the ability to cleave small peptide substrates. Thus, in advanced prostate cancer, sufficient PSA-A2M may be in circulation to effect total A2M levels, levels of cytokines bound to A2M and hydrolyze small circulating peptide hormones. METHODS Total A2M levels in men with advanced prostate cancer and PSA levels above 1000 ng/mL were measured by ELISA and compared to controls. Additional ELISA assays were used to measure levels of IL-6 and TGF-beta which can bind to A2M. The ability of PSA-A2M complexes to hydrolyze protein and peptide substrates was analyzed ± PSA inhibitor. Enzymatic activity of PSA-A2M in serum of men with high PSA levels was also assayed. RESULTS Serum A2M levels are inversely correlated with PSA levels in men with advanced prostate cancer. Il-6 Levels are significantly elevated in men with PSA >1000 ng/mL compared to controls with PSA <0.1 ng/mL. PSA-A2M complex in serum of men with PSA levels >1000 ng/mL can hydrolyze small fluorescently labeled peptide substrates but not large proteins that are PSA substrates. PSA can hydrolyze small peptide hormones like PTHrP and osteocalcin. PSA complexed to A2M retains the ability to degrade PTHrP. CONCLUSIONS In advanced prostate cancer with PSA levels >1000 ng/mL, sufficient PSA-A2M is present in circulation to produce enzymatic activity against circulating small peptide hormones. Sufficient PSA is produced in advanced prostate cancer to alter total A2M levels, which can potentially alter levels of a variety of growth factors such as IL-6, TGF-beta, basic FGF, and PDGF. Alterations in levels of these cytokines and proteolytic degradation of small peptide hormones may have profound effect on host-cancer interaction.
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Affiliation(s)
- Maya B. Kostova
- Department of Oncology, The Johns Hopkins University School of Medicine, Baltimore, Maryland
| | | | - David Lopez
- Department of Epidemiology, The University of Texas School of Public Health, Houston, Texas
| | - Lizamma Anthony
- Department of Oncology, The Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Hao Wang
- Department of Oncology, The Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Elizabeth Platz
- Department of Epidemiology, The Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland
| | - Samuel R. Denmeade
- Department of Oncology, The Johns Hopkins University School of Medicine, Baltimore, Maryland
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8
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Dasari S, Samy ALPA, Kajdacsy-Balla A, Bosland MC, Munirathinam G. Vitamin K2, a menaquinone present in dairy products targets castration-resistant prostate cancer cell-line by activating apoptosis signaling. Food Chem Toxicol 2018; 115:218-227. [PMID: 29432837 DOI: 10.1016/j.fct.2018.02.018] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Revised: 01/31/2018] [Accepted: 02/07/2018] [Indexed: 12/14/2022]
Abstract
The aim of this study was to evaluate the therapeutic effects of vitamin K2 (VK2) on castration-resistant prostate cancer (CRPC) and its anti-cancer mechanisms in a pre-clinical study using a VCaP cell line (ATCC® CRL-2876™) which was established from a vertebral bone metastasis from a patient with hormone refractory prostate cancer. Our data showed that VK2 significantly inhibited CRPC VCaP cell proliferation in a dose-dependent manner at 48 h treatment in vitro. In addition, VK2 reduced the migration potential of VCaP cells and inhibited anchorage-independent growth of these cells. Our results also showed that VK2 induces apoptosis in VCaP cells. Furthermore, VK2 enforced growth arrest in VCaP cells by activating cellular senescence. Notably, VK2 treatment elevated the levels of reactive oxygen species in VCaP cells. Western blot analysis revealed that VK2 downregulated the expression of androgen receptor, BiP, survivin, while activating caspase-3 and -7, PARP-1 cleavage, p21 and DNA damage response marker, phospho-H2AX in VCaP cells. In conclusion, our study suggests that VK2 might be a potential anti-cancer agent for CRPC by specifically targeting key anti-apoptotic, cell cycle progression and metastasis-promoting signaling molecules.
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Affiliation(s)
- Subramanyam Dasari
- Department of Biomedical Sciences, University of Illinois-College of Medicine, Rockford, IL, USA
| | | | | | - Maarten C Bosland
- Department of Pathology, University of Illinois at Chicago, Chicago, IL, USA
| | - Gnanasekar Munirathinam
- Department of Biomedical Sciences, University of Illinois-College of Medicine, Rockford, IL, USA.
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9
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Aalinkeel R, Nair B, Chen C, Mahajan SD, Reynolds JL, Zhang H, Sun H, Sykes DE, Chadha KC, Turowski SG, Bothwell KD, Seshadri M, Cheng C, Schwartz SA. Nanotherapy silencing the interleukin-8 gene produces regression of prostate cancer by inhibition of angiogenesis. Immunology 2016; 148:387-406. [PMID: 27159450 PMCID: PMC4948039 DOI: 10.1111/imm.12618] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Revised: 04/05/2016] [Accepted: 05/03/2016] [Indexed: 01/12/2023] Open
Abstract
Interleukin-8 (IL-8) is a pro-angiogenic cytokine associated with aggressive prostate cancer (CaP). We detected high levels of IL-8 in sera from patients with CaP compared with healthy controls and patients with benign prostatic hypertrophy. This study examines the role of IL-8 in the pathogenesis of metastatic prostate cancer. We developed a biocompatible, cationic polylactide (CPLA) nanocarrier to complex with and efficiently deliver IL-8 small interfering RNA (siRNA) to CaP cells in vitro and in vivo. CPLA IL-8 siRNA nanocomplexes (nanoplexes) protect siRNA from rapid degradation, are non-toxic, have a prolonged lifetime in circulation, and their net positive charge facilitates penetration of cell membranes and subsequent intracellular trafficking. Administration of CPLA IL-8 siRNA nanoplexes to immunodeficient mice bearing human CaP tumours produced significant antitumour activities with no adverse effects. Systemic (intravenous) or local intra-tumour administration of IL-8 siRNA nanoplexes resulted in significant inhibition of CaP growth. Magnetic resonance imaging and ultrasonography of experimental animals demonstrated reduction of tumour perfusion in vivo following nanoplex treatment. Staining of tumour sections for CD31 confirmed significant damage to tumour neovasculature after nanoplex therapy. These studies demonstrate the efficacy of IL-8 siRNA nanotherapy for advanced, treatment-resistant human CaP.
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Affiliation(s)
- Ravikumar Aalinkeel
- Department of MedicineDivision of Allergy, Immunology and RheumatologyUniversity at Buffalo and Kaleida HealthBuffaloNYUSA
| | - Bindukumar Nair
- Department of MedicineDivision of Allergy, Immunology and RheumatologyUniversity at Buffalo and Kaleida HealthBuffaloNYUSA
| | - Chih‐Kuang Chen
- Department of Chemical and Biological EngineeringUniversity at BuffaloBuffaloNYUSA
| | - Supriya D. Mahajan
- Department of MedicineDivision of Allergy, Immunology and RheumatologyUniversity at Buffalo and Kaleida HealthBuffaloNYUSA
| | - Jessica L. Reynolds
- Department of MedicineDivision of Allergy, Immunology and RheumatologyUniversity at Buffalo and Kaleida HealthBuffaloNYUSA
| | - Hanguang Zhang
- Department of Chemical and Biological EngineeringUniversity at BuffaloBuffaloNYUSA
| | - Haotian Sun
- Department of Chemical and Biological EngineeringUniversity at BuffaloBuffaloNYUSA
| | - Donald E. Sykes
- Department of MedicineDivision of Allergy, Immunology and RheumatologyUniversity at Buffalo and Kaleida HealthBuffaloNYUSA
| | - Kailash C. Chadha
- Department of Molecular and Cellular BiologyRoswell Park Cancer InstituteBuffaloNYUSA
| | - Steven G. Turowski
- Department of Pharmacology and TherapeuticsCancer Cell Center Roswell Park Cancer InstituteBuffaloNYUSA
| | - Katelyn D. Bothwell
- Department of Pharmacology and TherapeuticsCancer Cell Center Roswell Park Cancer InstituteBuffaloNYUSA
| | - Mukund Seshadri
- Department of Pharmacology and TherapeuticsCancer Cell Center Roswell Park Cancer InstituteBuffaloNYUSA
| | - Chong Cheng
- Department of Chemical and Biological EngineeringUniversity at BuffaloBuffaloNYUSA
| | - Stanley A. Schwartz
- Department of MedicineDivision of Allergy, Immunology and RheumatologyUniversity at Buffalo and Kaleida HealthBuffaloNYUSA
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10
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Filippou PS, Karagiannis GS, Musrap N, Diamandis EP. Kallikrein-related peptidases (KLKs) and the hallmarks of cancer. Crit Rev Clin Lab Sci 2016; 53:277-91. [PMID: 26886390 DOI: 10.3109/10408363.2016.1154643] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The kallikrein-related peptidases (KLKs) represent the largest family of serine proteases within the human genome and are expressed in various tissues. Although they regulate several important physiological functions, KLKs have also been implicated in numerous pathophysiological processes, including cancer. Growing evidence describing the deregulation of KLK expression and secretion, as well as activation in various malignancies, has uncovered their potential as mediators of cancer progression, biomarkers of disease and as candidate therapeutic targets. The diversity of signalling pathways and proteolytic cascades involving KLKs and their downstream targets appears to affect cancer biology through multiple mechanisms, including those related to the hallmarks of cancer. The aim of this review is to provide an update on the importance of KLK-driven molecular pathways in relation to cancer cell traits associated with the hallmarks of cancer and to highlight their potential in personalized therapeutics.
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Affiliation(s)
- Panagiota S Filippou
- a Department of Pathology and Laboratory Medicine , Mount Sinai Hospital , Toronto , ON , Canada
| | - George S Karagiannis
- b Department of Anatomy & Structural Biology , Albert Einstein College of Medicine, Yeshiva University Bronx , New York , NY , USA
| | - Natasha Musrap
- a Department of Pathology and Laboratory Medicine , Mount Sinai Hospital , Toronto , ON , Canada
| | - Eleftherios P Diamandis
- a Department of Pathology and Laboratory Medicine , Mount Sinai Hospital , Toronto , ON , Canada .,c Department of Clinical Biochemistry , University Health Network , Toronto , ON , Canada , and.,d Department of Laboratory Medicine and Pathobiology , University of Toronto , Toronto , ON , Canada
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11
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Fuhrman-Luck RA, Loessner D, Clements JA. Kallikrein-Related Peptidases in Prostate Cancer: From Molecular Function to Clinical Application. EJIFCC 2014; 25:269-81. [PMID: 27683474 PMCID: PMC4975200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Prostate cancer is a leading contributor to male cancer-related deaths worldwide. Kallikrein-related peptidases (KLKs) are serine proteases that exhibit deregulated expression in prostate cancer, with KLK3, or prostate specific antigen (PSA), being the widely-employed clinical biomarker for prostate cancer. Other KLKs, such as KLK2, show promise as prostate cancer biomarkers and, additionally, their altered expression has been utilised for the design of KLK-targeted therapies. There is also a large body of in vitro and in vivo evidence supporting their role in cancer-related processes. Here, we review the literature on studies to date investigating the potential of other KLKs, in addition to PSA, as biomarkers and in therapeutic options, as well as their current known functional roles in cancer progression. Increased knowledge of these KLK-mediated functions, including degradation of the extracellular matrix, local invasion, cancer cell proliferation, interactions with fibroblasts, angiogenesis, migration, bone metastasis and tumour growth in vivo, may help define new roles as prognostic biomarkers and novel therapeutic targets for this cancer.
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Affiliation(s)
| | | | - Judith A. Clements
- Cancer Program, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Australia
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12
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Hannu K, Johanna M, Ulf-Håkan S. KLK-targeted Therapies for Prostate Cancer. EJIFCC 2014; 25:207-18. [PMID: 27683469 PMCID: PMC4975297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Alternative treatments are urgently needed for prostate cancer, especially to address the aggressive metastatic castration-resistant disease. Proteolytic enzymes are involved in cancer growth and progression. The prostate produces several proteases, the most abundant ones being two members of the kallikrein-related peptidase (KLK) family, prostate-specific antigen (PSA) and KLK2. Despite the wide use of PSA as a clinical marker, the function(s) of PSA and other KLKs in prostate cancer are poorly known. Hypothetic roles of KLKs in prostate cancer include activities that may both promote and inhibit cancer growth and metastasis, including the antiangiogenic activity of PSA. Thus it may be possible to control prostate cancer growth by modulating the proteolytic activities of KLKs. PSA and KLK2 are especially attractive targets for prostate cancer treatment because of their proposed roles in tumor development and inhibition of angiogenesis in combination with their prostate selective expression. So far the number of molecules affecting selectively the activity of KLKs is limited and none of these are used to treat prostate cancer. Prodrugs that, after cleavage of the peptide part by PSA or KLK2, release active drug molecules, and PSA-targeted therapeutic vaccines have already been tested clinically in humans and the first results have been encouraging. Although KLKs are attractive targets for prostate cancer treatment, much remains to be done before their potential can be fully elucidated. The objective of this review is to address the current state of the KLKs as novel therapeutic targets for prostate cancer treatment.
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Affiliation(s)
- Koistinen Hannu
- Department of Clinical Chemistry, Biomedicum Helsinki, P.O. Box 63, FIN-00014 University of Helsinki, Finland +358 9 471 71734 (HK) (JM) (UHS)
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13
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Wang C, Li HY, Liu B, Huang S, Wu L, Li YY. Pim-3 promotes the growth of human pancreatic cancer in the orthotopic nude mouse model through vascular endothelium growth factor. J Surg Res 2013; 185:595-604. [PMID: 23845873 DOI: 10.1016/j.jss.2013.06.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2013] [Revised: 05/28/2013] [Accepted: 06/05/2013] [Indexed: 12/14/2022]
Abstract
BACKGROUND As one of the most lethal cancers, pancreatic cancer presents poor prognosis with an overall 5-y survival of less than 5%. We previously reported that Pim-3, a member of the proto-oncogene Pim family that encodes serine/threonine kinases, is aberrantly expressed in human pancreatic cancer lesions. In the current study, we investigated the role of Pim-3 in promoting tumor growth and angiogenesis in an orthotopic nude mouse model of human pancreatic cancer. METHODS We constructed retroviral vectors for human Pim-3 and a kinase-dead mutant of human Pim-3 (K69M); the retroviral supernatants generated from these vectors were then used to infect the human pancreatic cancer cell line MiaPaCa-2 to establish stable cell lines. We assessed cell proliferation using CCK-8, tumor growth, and angiogenesis in vivo in an orthotopic mouse model of pancreatic cancer. While tumor size was measured using magnetic resonance imaging, the tumor tissues were excised for protein extraction and histological analysis to detect vascular endothelium growth factor (VEGF) expression and vessel density. RESULTS We established an orthotopic nude mouse model of human pancreatic cancer. We observed that Pim-3 promoted the proliferation of human pancreatic cancer cells, both in vitro and in vivo. Moreover, Pim-3 is required for vasculogenesis of primary human pancreatic tumors in vivo and promotion of angiogenesis through the induction of VEGF expression. CONCLUSIONS Pim-3 can promote tumor growth and angiogenesis by stimulating the VEGF pathway.
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Affiliation(s)
- Chen Wang
- Cancer Research Institute, Fudan University Shanghai Cancer Center, Shanghai, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
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14
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Shang Z, Niu Y, Cai Q, Chen J, Tian J, Yeh S, Lai KP, Chang C. Human kallikrein 2 (KLK2) promotes prostate cancer cell growth via function as a modulator to promote the ARA70-enhanced androgen receptor transactivation. Tumour Biol 2013; 35:1881-90. [DOI: 10.1007/s13277-013-1253-6] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2013] [Accepted: 09/23/2013] [Indexed: 10/26/2022] Open
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15
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Dotan N, Wasser SP, Mahajna J. Inhibition of the Androgen Receptor Activity by Coprinus comatus Substances. Nutr Cancer 2011; 63:1316-27. [DOI: 10.1080/01635581.2011.607542] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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16
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Dotan N, Wasser SP, Mahajna J. The Culinary-Medicinal Mushroom Coprinus comatus as a Natural Antiandrogenic Modulator. Integr Cancer Ther 2010; 10:148-59. [DOI: 10.1177/1534735410383169] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Prostate cancer is the most common cancer diagnosed in men. Chemotherapy, androgen ablation, and androgen antagonist treatments have proven to have significant effects in the early stages of prostate cancer, whereas advanced prostate cancer is resilient to such treatments. The androgen receptor (AR), a ligand-dependent transcription factor, is the major drug target of prostate cancer therapy. Transition to the androgen-independent stage involves the activation of signaling pathways, AR gene mutations, and other mechanisms. Higher basidiomycetes mushrooms have been used since ancient times in folk medicine to treat a diversity of diseases, including cancer. The present study evaluates the antiandrogenic activity of different Coprinus comatus strains in their ability to interfere with AR function. The authors found that the most active extract was C comatus strain 734 extracted with hexane (CC734-H). This extract was able to (1) inhibit AR-mediated reporter activity, (2) inhibit the proliferation and viability of the LNCaP cell line, and (3) inhibit the colony formation of the LNCaP cell line, in comparison to the DU-145, PC-3, and MDA-Kb2 cells. In addition, CC734-H was able to reduce AR levels and prostate-specific antigen gene expression in the LNCaP-treated cell line. This study illustrates the potential of the C comatus mushroom as a natural antiandrogenic modulator that could serve in the treatment of prostatic diseases.
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Affiliation(s)
- Nesly Dotan
- MIGAL-Galilee Technology Center, Kiryat Shmona, Israel, University of Haifa, Mount Carmel, Haifa, Israel
| | | | - Jamal Mahajna
- MIGAL-Galilee Technology Center, Kiryat Shmona, Israel, Tel Hai Academic College, Kiryat Shmona, Israel,
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Ide H, Tokiwa S, Sakamaki K, Nishio K, Isotani S, Muto S, Hama T, Masuda H, Horie S. Combined inhibitory effects of soy isoflavones and curcumin on the production of prostate-specific antigen. Prostate 2010; 70:1127-33. [PMID: 20503397 DOI: 10.1002/pros.21147] [Citation(s) in RCA: 120] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND Sustained chronic inflammation in the prostate promotes prostate carcinogenesis. Since an elevated level of prostate-specific antigen (PSA) per se reflects the presence of inflammation in the prostate, intervention to improve the PSA value might potentially have beneficial effects for the prevention of the development of prostate cancer. Isoflavones and curcumin have anti-inflammatory and anti-oxidant properties. We examined the biological effects of soy isoflavones and curcumin on LNCaP cells. After that, we conducted a clinical trial for men who received prostate biopsies, but were not found to have prostate cancer, to evaluate the effects of soy isoflavones and curcumin on serum PSA levels. METHODS The expression of androgen receptor and PSA were examined in LNCaP cells before and after treatment of isoflavones and/or curcumin. Eighty-five participants were randomized to take a supplement containing isoflavones and curcumin or placebo daily in a double-blind study. Subjects were subdivided by the cut-off of their baseline PSA value at 10 microg/ml. We evaluated values of PSA before and 6 months after treatment. RESULTS The production of PSA were markedly decreased by the combined treatment of isoflavones and curcumin in prostate cancer cell line, LNCaP. The expression of the androgen receptor was also suppressed by the treatment. In clinical trials, PSA levels decreased in the patients group with PSA >or= 10 treated with supplement containing isoflavones and curcumin (P = 0.01). CONCLUSIONS Our results indicated that isoflavones and curcumin could modulate serum PSA levels. Curcumin presumably synergizes with isoflavones to suppress PSA production in prostate cells through the anti-androgen effects.
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Affiliation(s)
- Hisamitsu Ide
- Department of Urology, Teikyo University School of Medicine, Itabashi-ku, Tokyo, Japan
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18
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PSA reduces prostate cancer cell motility by stimulating TRPM8 activity and plasma membrane expression. Oncogene 2010; 29:4611-6. [DOI: 10.1038/onc.2010.210] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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Mattsson JM, Laakkonen P, Stenman UH, Koistinen H. Antiangiogenic properties of prostate-specific antigen (PSA). Scandinavian Journal of Clinical and Laboratory Investigation 2009; 69:447-51. [PMID: 19551556 DOI: 10.1080/00365510903056031] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The prostate produces high levels of prostate-specific antigen (PSA, also known as kallikrein-related peptidase 3, KLK3), which is a potential target for tumor imaging and treatment. Although serum PSA levels are elevated in prostate cancer, PSA expression is lower in malignant than in normal prostatic epithelium and it is further reduced in poorly differentiated tumors. PSA has been shown to inhibit angiogenesis both in in vitro and in vivo models. In this review we focus on our recent studies concerning the mechanism of the antiangiogenic function of PSA. We have recently shown that the antiangiogenic activity of PSA is related to its enzymatic activity. Inactive PSA isoforms do not have antiangiogenic activity as studied by a human umbelical vein endothelial cell (HUVEC) tube formation model. Furthermore, inhibition of PSA, either by a monoclonal antibody or small molecule inhibitors abolishes the effect of PSA, while a peptide that stimulates the activity of PSA enhances the antiangiogenic effect. We have analyzed changes in gene expression associated with the PSA induced reduction of tube formation in the HUVEC model. Several small changes were observed and they were found to be opposite to those associated with tube formation. Taken together, these studies suggest that PSA exerts antiantiogenic activity related to its enzymatic activity. Thus it might be associated with the slow growth of prostate cancer.
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Affiliation(s)
- Johanna M Mattsson
- Department of Clinical Chemistry, Biomedicum, University of Helsinki and Helsinki University Central Hospital, Helsinki, Finland.
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20
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Bindukumar B, Schwartz S, Aalinkeel R, Mahajan S, Lieberman A, Chadha K. Proteomic profiling of the effect of prostate-specific antigen on prostate cancer cells. Prostate 2008; 68:1531-45. [PMID: 18646040 DOI: 10.1002/pros.20811] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
BACKGROUND Prostate-specific antigen (PSA) is a well-known biomarker for diagnosis and management of prostate cancer. PSA has been shown to have anti-angiogenic activity. We used the emerging proteomic research technology to identify proteins in prostate cancer cells whose expression is regulated by enzymatically active PSA. METHODS Differentially expressed proteins in PC-3M cells treated with PSA were analyzed by 2D-DIGE analysis and identified by HPLC-MS/MS and SEQUEST data mining. Biological network analysis was carried out using MetaCore integrated software designed for functional analysis of experimental data. Gene expression data for several regulated proteins were confirmed by real-time, quantitative PCR. RESULTS A total of 41 proteins were significantly (P < 0.05) changed in abundance in PC-3M cells in response to PSA treatment. Proteins from 26 gel-spots were identified. Many of the down-regulated proteins including N8 gene product long isoform, laminin receptor, vimentin, DJ-1 and Hsp60 are known to be involved in tumor progression. DISCUSSION The relevance of the level of PSA in prostate tissue microenvironment and its relation to tumor progression has not been elucidated. PSA has been shown to down-regulate several proteins that are known to have involvement in tumor progression. This suggests that normal physiological levels of PSA in prostate tissue microenvironment may be promoting non-angiogenic environment and its down-regulation may promote tumor growth.
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Affiliation(s)
- B Bindukumar
- Department of Molecular & Cellular Biology, Roswell Park Cancer Research Institute, Buffalo, New York 14263, USA
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21
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Mattsson JM, Laakkonen P, Kilpinen S, Stenman UH, Koistinen H. Gene expression changes associated with the anti-angiogenic activity of kallikrein-related peptidase 3 (KLK3) on human umbilical vein endothelial cells. Biol Chem 2008; 389:765-71. [DOI: 10.1515/bc.2008.088] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractKallikrein-related peptidase 3 (KLK3, also known as prostate-specific antigen, PSA) is a chymotrypsin-like kallikrein that has anti-angiogenic properties. We have previously shown in a human umbilical vein endothelial cell (HUVEC) model that the anti-angiogenic effect of KLK3 is related to its enzyme activity. However, the mechanism of this effect remains to be clarified. To this end, we used a DNA microarray to study KLK3-induced changes in gene expression associated with reduction of HUVEC tube formation. Among the 41 000 genes studied, 311 were differentially expressed between control and KLK3-treated cells. These changes were enriched in several pathways, including those associated with proteasome, ubiquitin-mediated proteolysis, focal adhesion and regulation of the actin cytoskeleton. Furthermore, the changes were opposite to those previously described to occur during tubulogenesis. In conclusion, our results show that KLK3 induces gene expression changes in HUVECs. Although these changes might be relevant for the mechanism by which KLK3 exerts its anti-angiogenic activity, it cannot be judged from the present results whether they reflect the primary mechanism mediating the effect of KLK3 or are secondary to morphogenic differentiation.
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Kumano M, Miyake H, Kurahashi T, Yamanaka K, Fujisawa M. Enhanced progression of human prostate cancer PC3 cells induced by the microenvironment of the seminal vesicle. Br J Cancer 2008; 98:356-62. [PMID: 18182987 PMCID: PMC2361452 DOI: 10.1038/sj.bjc.6604169] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The objective of this study was to characterise the mechanism mediating the prostate cancer progression induced by the microenvironment of seminal vesicle (SV). The invasive potential of PC3 cells significantly increased after treatment with extract from SV of NOD/SCID mouse. Among several growth factors and cytokines that were present in the SV extract, transforming growth factor-β1 (TGF-β1) significantly enhanced the invasive potential of PC3 cells; however, the additional treatment with neutralising antibody against TGF-β1 suppressed the enhanced invasive potential induced by the SV extract. Changes in the invasive potential in PC3 cells after treatment with the SV extract and/or TGF-β1 were in proportion to those in the production of urokinase-type plasminogen activator (uPA) by PC3 cells. Tumour growth as well as the incidence of lymph node metastasis in NOD/SCID mice after the injection of PC3 cells into the SV were significantly greater than those after the injection into the prostate. These findings suggest that the microenvironment of SV enhances the progression of prostate cancer through a stimulated invasive potential, and that enhanced uPA production in prostate cancer cells induced by TGF-β1 could therefore be one of the most important mechanisms involved in the progression of prostate cancer after SV invasion.
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Affiliation(s)
- M Kumano
- Department of Surgery, Division of Urology, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe 650-0017, Japan
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Neoplasia: An Anniversary of Progress. Neoplasia 2007. [DOI: 10.1593/neo.07968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Bindukumar B, Mahajan SD, Reynolds JL, Hu Z, Sykes DE, Aalinkeel R, Schwartz SA. Genomic and proteomic analysis of the effects of cannabinoids on normal human astrocytes. Brain Res 2007; 1191:1-11. [PMID: 18163980 DOI: 10.1016/j.brainres.2007.10.062] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2007] [Revised: 10/17/2007] [Accepted: 10/24/2007] [Indexed: 10/22/2022]
Abstract
Delta-9-tetrahydrocannabinol (Delta(9)-THC), the main psychoactive component of marijuana, is known to dysregulate various immune responses. Cannabinoid (CB)-1 and -2 receptors are expressed mainly on cells of the central nervous system (CNS) and the immune system. The CNS is the primary target of cannabinoids and astrocytes are known to play a role in various immune responses. Thus we undertook this investigation to determine the global molecular effects of cannabinoids on normal human astrocytes (NHA) using genomic and proteomic analyses. NHA were treated with Delta(9)-THC and assayed using gene microarrays and two-dimensional (2D) difference gel electrophoresis (DIGE) coupled with mass spectrometry (MS) to elucidate their genomic and proteomic profiles respectively. Our results show that the expression of more than 20 translated protein gene products from NHA was differentially dysregulated by treatment with Delta(9)-THC compared to untreated, control NHA.
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Affiliation(s)
- B Bindukumar
- Department of Medicine, Division of Allergy, Immunology, and Rheumatology, Buffalo General Hospital, University at Buffalo, State University of NY, Kaleida Health, 100 High Street, Buffalo, NY 14203, USA
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25
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Zheng HC, Tsuneyama K, Takahashi H, Miwa S, Sugiyama T, Popivanova BK, Fujii C, Nomoto K, Mukaida N, Takano Y. Aberrant Pim-3 expression is involved in gastric adenoma-adenocarcinoma sequence and cancer progression. J Cancer Res Clin Oncol 2007; 134:481-8. [PMID: 17876606 DOI: 10.1007/s00432-007-0310-1] [Citation(s) in RCA: 61] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2007] [Accepted: 08/28/2007] [Indexed: 12/14/2022]
Abstract
PURPOSE Pim-3, a member of the proto-oncogene Pim family with serine/threonine kinase activity was aberrantly expressed in cancerous lesions of endoderm-derived organs such as liver, pancreas, and colon. The aim of this study was to clarify the role of Pim-3 expression in the tumorigenesis and the development of gastric carcinomas. METHODS Pim-3 expression was immunohistochemically examined on the tissue microarrays containing primary (n = 285) and metastastic (n = 37) sites of gastric carcinomas, in comparison with adenoma (n = 48) and non-cancerous mucosa (n = 84). It was also compared with the clinicopathological parameters of gastric carcinomas. RESULTS Pim-3 expression was enhanced in adenoma (64.6%) and metastasis sites of gastric carcinoma (73.0%), to a lesser degree in primary sites of gastric carcinoma (39.3%) when compared to non-cancerous mucosa (13.1%, p < 0.0001). Pim-3 expression levels were higher in intestinal-type than diffuse-type gastric carcinoma (p = 0.018). Pim-3 expression was closely correlated with sex (p = 0.047), lymphatic (p = 0.019) and venous invasion (p = 0.014). Pim-3 expression was correlated significantly with vascular endothelial growth factor (VEGF, p = 0.009) and extracellular matrix metalloproteinase inducer (EMMPRIN, p = 0.032), both of which are presumed to be involved in neovascularization, a crucial step for metastasis. On the contrary, phosphatase and tensin homology deleted from human chromosome 10 (Pten) negative gastric carcinomas exhibited higher Pim-3 expression than Pten positive ones (p = 0.042). There was no relationship between Pim-3 expression and MVD in gastric carcinomas (p = 0.715). Furthermore, patients with Pim-3 positive gastric cancer, showed a lower cumulative survival rate than those with Pim-3 negative gastric cancer (p = 0.014) and Pim-3 positive was also identified as an independent prognostic factor for gastric carcinoma patients (p = 0.006). CONCLUSIONS Aberrant Pim-3 expression was involved in gastric adenoma-adenocarcinoma sequence and subsequent invasion and metastasis process in gastric cancer. Moreover, Pim-3 may be employed to predict the prognosis of gastric cancer patients. Distinct Pim-3 expression underlies the molecular mechanisms for the differentiation of intestinal-type and diffuse-type carcinomas.
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Affiliation(s)
- Hua-Chuan Zheng
- Department of Diagnostic Pathology, Graduate School of Medical and Pharmaceutical Sciences, University of Toyama, Toyama, 930-0194, Japan
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Emami N, Diamandis EP. New insights into the functional mechanisms and clinical applications of the kallikrein-related peptidase family. Mol Oncol 2007; 1:269-87. [PMID: 19383303 DOI: 10.1016/j.molonc.2007.09.003] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2007] [Revised: 09/04/2007] [Accepted: 09/07/2007] [Indexed: 11/28/2022] Open
Abstract
The Kallikrein-related peptidase (KLK) family consists of fifteen conserved serine proteases that form the largest contiguous cluster of proteases in the human genome. While primarily recognized for their clinical utilities as potential disease biomarkers, new compelling evidence suggests that this family plays a significant role in various physiological processes, including skin desquamation, semen liquefaction, neural plasticity, and body fluid homeostasis. KLK activation is believed to be mediated through highly organized proteolytic cascades, regulated through a series of feedback loops, inhibitors, auto-degradation and internal cleavages. Gene expression is mainly hormone-dependent, even though transcriptional epigenetic regulation has also been reported. These regulatory mechanisms are integrated with various signaling pathways to mediate multiple functions. Dysregulation of these pathways has been implicated in a large number of neoplastic and non-neoplastic pathological conditions. This review highlights our current knowledge of structural/phylogenetic features, functional role and regulatory/signaling mechanisms of this important family of enzymes.
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Affiliation(s)
- Nashmil Emami
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada
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Ornstein DL, Zacharski LR. Iron stimulates urokinase plasminogen activator expression and activates NF-kappa B in human prostate cancer cells. Nutr Cancer 2007; 58:115-26. [PMID: 17571974 DOI: 10.1080/01635580701308265] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Urokinase-type plasminogen activator (uPA) on prostate cancer cell surfaces mediates pericellular proteolysis and destruction of extracellular matrix barriers to tumor invasion and metastasis. Increased expression of tumor-associated uPA leads to enhanced tumor dissemination and poor cancer outcomes in men with prostate cancer. Expression of uPA is regulated in part by the oxidant-sensitive transcription factor, NF-kappa B (NF-kappaB), which is activated by intracellular reactive oxygen intermediates (ROI). This study examined the effect of iron on the production of ROI, activation of NF-kappaB and expression of uPA in the human prostate cancer cell line, PC-3. Treatment of PC-3 cells with iron in the form of ferric nitrilotriacetate (FeNTA) in the absence of added transferrin resulted in a dose-dependent increase in cellular ferritin content in both the presence and absence of neutralizing antibody to the transferrin receptor. Cellular uptake of iron resulted in stimulation of intracellular ROI production, and increases in uPA mRNA, antigen, and activity. Concurrent treatment with the iron chelator, desferrioxamine (DFO) abrogated these effects, and treatment with DFO alone inhibited constitutive uPA production. Finally, we observed nuclear translocation, and therefore activation of NF-kappaB in response to iron exposure. We conclude that iron enters PC-3 cells via a non-transferrin dependent pathway and increases uPA expression. Our data indicate that one mechanism by which iron may stimulate uPA production is through the generation of intracellular ROI and activation of NF-kappaB-mediated signaling pathways.
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Affiliation(s)
- Deborah L Ornstein
- Department of Laboratory Medicine, Yale School of Medicine, 333 Cedar Street, New Haven, CT 06520, USA.
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Zaidman BZ, Wasser SP, Nevo E, Mahajna J. Coprinus comatus and Ganoderma lucidum interfere with androgen receptor function in LNCaP prostate cancer cells. Mol Biol Rep 2007; 35:107-17. [PMID: 17431821 DOI: 10.1007/s11033-007-9059-5] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2006] [Accepted: 01/17/2007] [Indexed: 12/31/2022]
Abstract
In this study, we screened a total of 201 diethyl ether, ethanol, and ethyl acetate fungal Basidiomycetes extracts for anti-androgenic activity. Based on our screened results in combination with the selective inhibition of prostate cancer LNCaP cells, we selected Coprinus comatus and Ganoderma lucidum for further evaluation. We demonstrated that ethanol and ethyl acetate extracts from C. comatus and G. lucidum, respectively, selectively inhibit dihydrotestosterone-induced LNCaP cell viability, suppress levels of secreted prostate-specific antigen in a dose-dependent manner, and cause a G1 phase arrest in LNCaP, but not in DU 145 and PC-3 cells. For the first time, to the best of our knowledge, we demonstrated that C. comatus and G. lucidum decreased androgen and glucocorticoide receptors transcriptional activity in breast cancer MDA-kb2 cells in a dose-dependent manner, and suppressed androgen receptor (AR) protein level in LNCaP and MDA-kb2 cells. Our findings suggest that AR and non-AR mediated mechanisms underlie the effects of C. comatus and G. lucidum.
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Affiliation(s)
- Ben-Zion Zaidman
- Institute of Evolution, University of Haifa, Mount Carmel, Haifa, 31905, Israel
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Nam RK, Zhang WW, Klotz LH, Trachtenberg J, Jewett MAS, Sweet J, Toi A, Teahan S, Venkateswaran V, Sugar L, Loblaw A, Siminovitch K, Narod SA. Variants of the hK2 protein gene (KLK2) are associated with serum hK2 levels and predict the presence of prostate cancer at biopsy. Clin Cancer Res 2007; 12:6452-8. [PMID: 17085659 DOI: 10.1158/1078-0432.ccr-06-1485] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
PURPOSE Increased levels of serum human kallikrein-2 (hK2) and an hK2 gene (KLK2) variant are positively associated for prostate cancer, but the relationships between them remain unclear. We examined five variants of the KLK2 gene to further define its relevance to prostate cancer susceptibility and hK2 levels. EXPERIMENTAL DESIGN We genotyped 645 men with biopsy-proven prostate cancer (cases) and 606 males with biopsies negative for prostate cancer (controls) for five additional single nucleotide polymorphisms (SNP) across the KLK2 gene and also tested for serum hK2 levels. These SNPs were identified from sequencing the KLK2 gene among 20 patients with aggressive prostate cancer. Odds ratios (OR) for prostate cancer detection and haplotype analysis were done. RESULTS Among the SNPs studied, the A allele of the KLK2-SNP1 (G>A, rs2664155) and the T allele of the KLK2-SNP5 (C>T, rs198977) polymorphisms showed positive associations with prostate cancer, adjusted ORs for KLK2-SNP1 AG and AA genotypes being 1.4 [95% confidence interval (95% CI), 1.2-1.8; P=0.002] and for KLK2-SNP5 TT or CT genotypes being 1.3 (95% CI, 1.1-1.6; P=0.05). Haplotype analyses also revealed a significant association between prostate cancer and the haplotype containing both risk alleles (ACCTT), OR being 5.1 (95% CI, 1.6-6.5; P=0.005). Analysis of serum hK2 revealed hK2 levels to be significantly increased in association with KLK2-SNP1 AA and AG risk genotypes compared with the GG genotype (P=0.001) and also in association with the ACCTT risk haplotype compared with the most common non-risk haplotype (P=0.05). CONCLUSIONS These findings suggest a role for the KLK2 gene in prostate cancer susceptibility and imply that this role may be realized at least in part by the induction of increases in hK2 production.
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Affiliation(s)
- Robert K Nam
- Division of Urology; Department of Pathology, Sunnybrook Health Sciences Centre, University Health Network, Mount Sinai Hospital, University of Toronto, Ontario, Canada.
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Rehemtulla A, Ross BD. A review of the past, present, and future directions of neoplasia. Neoplasia 2006; 7:1039-46. [PMID: 16354585 PMCID: PMC1501177 DOI: 10.1593/neo.05793] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
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