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Silva KCS, Tambwe N, Mahfouz DH, Wium M, Cacciatore S, Paccez JD, Zerbini LF. Transcription Factors in Prostate Cancer: Insights for Disease Development and Diagnostic and Therapeutic Approaches. Genes (Basel) 2024; 15:450. [PMID: 38674385 PMCID: PMC11050257 DOI: 10.3390/genes15040450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 03/28/2024] [Accepted: 03/30/2024] [Indexed: 04/28/2024] Open
Abstract
Transcription factors (TFs) are proteins essential for the regulation of gene expression, and they regulate the genes involved in different cellular processes, such as proliferation, differentiation, survival, and apoptosis. Although their expression is essential in normal physiological conditions, abnormal regulation of TFs plays critical role in several diseases, including cancer. In prostate cancer, the most common malignancy in men, TFs are known to play crucial roles in the initiation, progression, and resistance to therapy of the disease. Understanding the interplay between these TFs and their downstream targets provides insights into the molecular basis of prostate cancer pathogenesis. In this review, we discuss the involvement of key TFs, including the E26 Transformation-Specific (ETS) Family (ERG and SPDEF), NF-κB, Activating Protein-1 (AP-1), MYC, and androgen receptor (AR), in prostate cancer while focusing on the molecular mechanisms involved in prostate cancer development. We also discuss emerging diagnostic strategies, early detection, and risk stratification using TFs. Furthermore, we explore the development of therapeutic interventions targeting TF pathways, including the use of small molecule inhibitors, gene therapies, and immunotherapies, aimed at disrupting oncogenic TF signaling and improving patient outcomes. Understanding the complex regulation of TFs in prostate cancer provides valuable insights into disease biology, which ultimately may lead to advancing precision approaches for patients.
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Affiliation(s)
- Karla C. S. Silva
- International Centre for Genetic Engineering and Biotechnology (ICGEB), Cape Town 7925, South Africa; (K.C.S.S.); (N.T.); (D.H.M.); (M.W.); (S.C.); (J.D.P.)
| | - Nadine Tambwe
- International Centre for Genetic Engineering and Biotechnology (ICGEB), Cape Town 7925, South Africa; (K.C.S.S.); (N.T.); (D.H.M.); (M.W.); (S.C.); (J.D.P.)
- Integrative Biomedical Sciences Division, Faculty of Health Sciences, University of Cape Town, Cape Town 7925, South Africa
| | - Dalia H. Mahfouz
- International Centre for Genetic Engineering and Biotechnology (ICGEB), Cape Town 7925, South Africa; (K.C.S.S.); (N.T.); (D.H.M.); (M.W.); (S.C.); (J.D.P.)
| | - Martha Wium
- International Centre for Genetic Engineering and Biotechnology (ICGEB), Cape Town 7925, South Africa; (K.C.S.S.); (N.T.); (D.H.M.); (M.W.); (S.C.); (J.D.P.)
- Integrative Biomedical Sciences Division, Faculty of Health Sciences, University of Cape Town, Cape Town 7925, South Africa
| | - Stefano Cacciatore
- International Centre for Genetic Engineering and Biotechnology (ICGEB), Cape Town 7925, South Africa; (K.C.S.S.); (N.T.); (D.H.M.); (M.W.); (S.C.); (J.D.P.)
- Integrative Biomedical Sciences Division, Faculty of Health Sciences, University of Cape Town, Cape Town 7925, South Africa
| | - Juliano D. Paccez
- International Centre for Genetic Engineering and Biotechnology (ICGEB), Cape Town 7925, South Africa; (K.C.S.S.); (N.T.); (D.H.M.); (M.W.); (S.C.); (J.D.P.)
| | - Luiz F. Zerbini
- International Centre for Genetic Engineering and Biotechnology (ICGEB), Cape Town 7925, South Africa; (K.C.S.S.); (N.T.); (D.H.M.); (M.W.); (S.C.); (J.D.P.)
- Integrative Biomedical Sciences Division, Faculty of Health Sciences, University of Cape Town, Cape Town 7925, South Africa
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Zhang W, Chen T, Yang P, Li X, Zhu D, Su Z, Yang X, Jin R, Lan T, Guo H. Total flavonoids of Litchi chinensis Sonn. seed inhibit prostate cancer growth in bone by regulating the bone microenvironment via inactivation of the HGFR/NF-κB signaling pathway. JOURNAL OF ETHNOPHARMACOLOGY 2024; 319:117327. [PMID: 37871755 DOI: 10.1016/j.jep.2023.117327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2023] [Revised: 10/10/2023] [Accepted: 10/15/2023] [Indexed: 10/25/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Litchi chinensis Sonn. (Litchi) seed, a traditional Chinese medicine, is habitually used in the clinical treatment of prostate cancer (PCa)-induced bone pain. In our previous study, flavonoids have been identified as the active ingredient of litchi seed against PCa. However, its anti-tumor activities in bone and associated molecular mechanisms are still unclear. AIM OF THE STUDY To investigate the effects and underlying mechanisms of total flavonoids of litchi seed (TFLS) on the growth of PCa in bone. MATERIALS AND METHODS The effect of TFLS on the growth of PCa in bone was observed using a mouse model constructed with tibial injection of luciferase-expressing RM1-luc cells. Conditioned medium (CM) from bone marrow stromal cells OP9 and CM treated with TFLS (T-CM) was used to investigate the effect on the proliferation, colony formation, and apoptosis of PCa cells (LNCaP, PC3, RM1). An antibody microarray was performed to detect cytokine expression in the supernatant fraction of OP9 cell cultures treated with TFLS or left untreated. Western blot assay was employed to determine the expression and activity of HGFR and its key downstream proteins, Akt, mTOR, NF-κB, and Erk, in PCa cells. The potential target was further verified using immunofluorescence and immunohistochemistry assays. RESULTS Treatment with TFLS (80 mg/kg, 24 days) significantly suppressed the growth of RM1 cells in bone. CM from bone marrow stromal cells OP9 stimulated the proliferation and colony formation of the PCa cells as well as inhibited the apoptosis of PC3 cells, while T-CM reversed the effects mediated by OP9 cells in vitro. In an antibody array assay, TFLS regulated the majority of cytokines in OP9 cell culture supernatant, among which HGF, HGFR, IGF-1R, and PDGF-AA showed the greatest fold changes. Mechanistically, CM upregulated HGFR and promoted phosphorylation of NF-κB while T-CM induced reduction of HGFR and dephosphorylation of NF-κB in PC3 cells. Moreover, T-CM inhibited NF-κB entry into PC3 cell nuclei. Data from in vivo experiments further confirmed the inhibitory effects of TFLS on NF-κB. CONCLUSION TFLS suppresses the growth of PCa in bone through regulating bone microenvironment and the underlying mechanism potentially involves attenuation of the HGFR/NF-κB signaling axis.
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Affiliation(s)
- Weiquan Zhang
- Guangxi Key Laboratory of Bioactive Molecules Research and Evaluation & Pharmaceutical College, Guangxi Medical University, 22 Shuangyong Road, Nanning, 530021, China; Key Laboratory of Longevity and Aging-related Diseases of Chinese Ministry of Education & Center for Translational Medicine, Guangxi Medical University, 22 Shuangyong Road, Nanning, 530021, China
| | - Tao Chen
- Department of Orthopedics, Ruikang Hospital Affiliated to Guangxi University of Chinese Medicine, 10 Huadong Road, Nanning, 530011, China
| | - Peilin Yang
- Guangxi Key Laboratory of Bioactive Molecules Research and Evaluation & Pharmaceutical College, Guangxi Medical University, 22 Shuangyong Road, Nanning, 530021, China
| | - Xiaolan Li
- Guangxi Key Laboratory of Bioactive Molecules Research and Evaluation & Pharmaceutical College, Guangxi Medical University, 22 Shuangyong Road, Nanning, 530021, China; Key Laboratory of Longevity and Aging-related Diseases of Chinese Ministry of Education & Center for Translational Medicine, Guangxi Medical University, 22 Shuangyong Road, Nanning, 530021, China
| | - Dan Zhu
- Guangxi Key Laboratory of Bioactive Molecules Research and Evaluation & Pharmaceutical College, Guangxi Medical University, 22 Shuangyong Road, Nanning, 530021, China
| | - Zhiheng Su
- Guangxi Key Laboratory of Bioactive Molecules Research and Evaluation & Pharmaceutical College, Guangxi Medical University, 22 Shuangyong Road, Nanning, 530021, China
| | - Xin Yang
- Key Laboratory of Longevity and Aging-related Diseases of Chinese Ministry of Education & Center for Translational Medicine, Guangxi Medical University, 22 Shuangyong Road, Nanning, 530021, China
| | - Ronghua Jin
- Guangxi Key Laboratory of Bioactive Molecules Research and Evaluation & Pharmaceutical College, Guangxi Medical University, 22 Shuangyong Road, Nanning, 530021, China.
| | - Taijin Lan
- School of Preclinical Medicine, Guangxi University of Chinese Medicine, 179 Mingxiu Dong Road, Nanning, 530001, China.
| | - Hongwei Guo
- Guangxi Key Laboratory of Bioactive Molecules Research and Evaluation & Pharmaceutical College, Guangxi Medical University, 22 Shuangyong Road, Nanning, 530021, China; Key Laboratory of Longevity and Aging-related Diseases of Chinese Ministry of Education & Center for Translational Medicine, Guangxi Medical University, 22 Shuangyong Road, Nanning, 530021, China.
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3
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Pérez-Gómez JM, Montero-Hidalgo AJ, Fuentes-Fayos AC, Sarmento-Cabral A, Guzmán-Ruiz R, Malagón MM, Herrera-Martínez AD, Gahete MD, Luque RM. Exploring the role of the inflammasomes on prostate cancer: Interplay with obesity. Rev Endocr Metab Disord 2023; 24:1165-1187. [PMID: 37819510 PMCID: PMC10697898 DOI: 10.1007/s11154-023-09838-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/21/2023] [Indexed: 10/13/2023]
Abstract
Obesity is a weight-related disorder characterized by excessive adipose tissue growth and dysfunction which leads to the onset of a systemic chronic low-grade inflammatory state. Likewise, inflammation is considered a classic cancer hallmark affecting several steps of carcinogenesis and tumor progression. In this regard, novel molecular complexes termed inflammasomes have been identified which are able to react to a wide spectrum of insults, impacting several metabolic-related disorders, but their contribution to cancer biology remains unclear. In this context, prostate cancer (PCa) has a markedly inflammatory component, and patients frequently are elderly individuals who exhibit weight-related disorders, being obesity the most prevalent condition. Therefore, inflammation, and specifically, inflammasome complexes, could be crucial players in the interplay between PCa and metabolic disorders. In this review, we will: 1) discuss the potential role of each inflammasome component (sensor, molecular adaptor, and targets) in PCa pathophysiology, placing special emphasis on IL-1β/NF-kB pathway and ROS and hypoxia influence; 2) explore the association between inflammasomes and obesity, and how these molecular complexes could act as the cornerstone between the obesity and PCa; and, 3) compile current clinical trials regarding inflammasome targeting, providing some insights about their potential use in the clinical practice.
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Affiliation(s)
- Jesús M Pérez-Gómez
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), IMIBIC Building, Av. Menéndez Pidal s/n, 14004, Córdoba, Spain
- Department of Cell Biology, Physiology, and Immunology, University of Córdoba, Cordoba, Spain
- Hospital Universitario Reina Sofía (HURS), Cordoba, Spain
- Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y Nutrición, (CIBERobn), Cordoba, Spain
| | - Antonio J Montero-Hidalgo
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), IMIBIC Building, Av. Menéndez Pidal s/n, 14004, Córdoba, Spain
- Department of Cell Biology, Physiology, and Immunology, University of Córdoba, Cordoba, Spain
- Hospital Universitario Reina Sofía (HURS), Cordoba, Spain
- Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y Nutrición, (CIBERobn), Cordoba, Spain
| | - Antonio C Fuentes-Fayos
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), IMIBIC Building, Av. Menéndez Pidal s/n, 14004, Córdoba, Spain
- Department of Cell Biology, Physiology, and Immunology, University of Córdoba, Cordoba, Spain
- Hospital Universitario Reina Sofía (HURS), Cordoba, Spain
- Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y Nutrición, (CIBERobn), Cordoba, Spain
| | - André Sarmento-Cabral
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), IMIBIC Building, Av. Menéndez Pidal s/n, 14004, Córdoba, Spain
- Department of Cell Biology, Physiology, and Immunology, University of Córdoba, Cordoba, Spain
- Hospital Universitario Reina Sofía (HURS), Cordoba, Spain
- Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y Nutrición, (CIBERobn), Cordoba, Spain
| | - Rocio Guzmán-Ruiz
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), IMIBIC Building, Av. Menéndez Pidal s/n, 14004, Córdoba, Spain
- Department of Cell Biology, Physiology, and Immunology, University of Córdoba, Cordoba, Spain
- Hospital Universitario Reina Sofía (HURS), Cordoba, Spain
- Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y Nutrición, (CIBERobn), Cordoba, Spain
| | - María M Malagón
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), IMIBIC Building, Av. Menéndez Pidal s/n, 14004, Córdoba, Spain
- Department of Cell Biology, Physiology, and Immunology, University of Córdoba, Cordoba, Spain
- Hospital Universitario Reina Sofía (HURS), Cordoba, Spain
- Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y Nutrición, (CIBERobn), Cordoba, Spain
| | - Aura D Herrera-Martínez
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), IMIBIC Building, Av. Menéndez Pidal s/n, 14004, Córdoba, Spain
- Hospital Universitario Reina Sofía (HURS), Cordoba, Spain
- Endocrinology and Nutrition Service, HURS/IMIBIC, Córdoba, Spain
| | - Manuel D Gahete
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), IMIBIC Building, Av. Menéndez Pidal s/n, 14004, Córdoba, Spain
- Department of Cell Biology, Physiology, and Immunology, University of Córdoba, Cordoba, Spain
- Hospital Universitario Reina Sofía (HURS), Cordoba, Spain
- Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y Nutrición, (CIBERobn), Cordoba, Spain
| | - Raúl M Luque
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), IMIBIC Building, Av. Menéndez Pidal s/n, 14004, Córdoba, Spain.
- Department of Cell Biology, Physiology, and Immunology, University of Córdoba, Cordoba, Spain.
- Hospital Universitario Reina Sofía (HURS), Cordoba, Spain.
- Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y Nutrición, (CIBERobn), Cordoba, Spain.
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Yuan S, Hoggard NK, Kantake N, Hildreth BE, Rosol TJ. Effects of Dickkopf-1 (DKK-1) on Prostate Cancer Growth and Bone Metastasis. Cells 2023; 12:2695. [PMID: 38067123 PMCID: PMC10705757 DOI: 10.3390/cells12232695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 11/13/2023] [Accepted: 11/21/2023] [Indexed: 12/18/2023] Open
Abstract
Osteoblastic bone metastases are commonly detected in patients with advanced prostate cancer (PCa) and are associated with an increased mortality rate. Dickkopf-1 (DKK-1) antagonizes canonical WNT/β-catenin signaling and plays a complex role in bone metastases. We explored the function of cancer cell-specific DKK-1 in PCa growth, metastasis, and cancer-bone interactions using the osteoblastic canine PCa cell line, Probasco. Probasco or Probasco + DKK-1 (cells transduced with human DKK-1) were injected into the tibia or left cardiac ventricle of athymic nude mice. Bone metastases were detected by bioluminescent imaging in vivo and evaluated by micro-computed tomography and histopathology. Cancer cell proliferation, migration, gene/protein expression, and their impact on primary murine osteoblasts and osteoclasts, were evaluated in vitro. DKK-1 increased cancer growth and stimulated cell migration independent of canonical WNT signaling. Enhanced cancer progression by DKK-1 was associated with increased cell proliferation, up-regulation of NF-kB/p65 signaling, inhibition of caspase-dependent apoptosis by down-regulation of non-canonical WNT/JNK signaling, and increased expression of epithelial-to-mesenchymal transition genes. In addition, DKK-1 attenuated the osteoblastic activity of Probasco cells, and bone metastases had decreased cancer-induced intramedullary woven bone formation. Decreased bone formation might be due to the inhibition of osteoblast differentiation and stimulation of osteoclast activity through a decrease in the OPG/RANKL ratio in the bone microenvironment. The present study indicated that the cancer-promoting role of DKK-1 in PCa bone metastases was associated with increased growth of bone metastases, reduced bone induction, and altered signaling through the canonical WNT-independent pathway. DKK-1 could be a promising therapeutic target for PCa.
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Affiliation(s)
- Shiyu Yuan
- Department of Biological Sciences, The Molecular and Cellular Biology Program, College of Arts and Sciences, Ohio University, Athens, OH 45701, USA;
- Department of Biomedical Sciences, Heritage College of Osteopathic Medicine, Ohio University, Athens, OH 45701, USA; (N.K.H.); (N.K.)
| | - Nathan K. Hoggard
- Department of Biomedical Sciences, Heritage College of Osteopathic Medicine, Ohio University, Athens, OH 45701, USA; (N.K.H.); (N.K.)
| | - Noriko Kantake
- Department of Biomedical Sciences, Heritage College of Osteopathic Medicine, Ohio University, Athens, OH 45701, USA; (N.K.H.); (N.K.)
| | - Blake E. Hildreth
- Department of Pathology, School of Medicine, University of Alabama at Birmingham, Birmingham, AL 35294, USA;
| | - Thomas J. Rosol
- Department of Biological Sciences, The Molecular and Cellular Biology Program, College of Arts and Sciences, Ohio University, Athens, OH 45701, USA;
- Department of Biomedical Sciences, Heritage College of Osteopathic Medicine, Ohio University, Athens, OH 45701, USA; (N.K.H.); (N.K.)
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5
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Wang R, Zhong J, Pan X, Su Z, Xu Y, Zhang M, Chen X, Chen N, Yu T, Zhou Q. A novel intronic circular RNA circFGFR1 int2 up-regulates FGFR1 by recruiting transcriptional activators P65/FUS and suppressing miR-4687-5p to promote prostate cancer progression. J Transl Med 2023; 21:840. [PMID: 37993879 PMCID: PMC10664560 DOI: 10.1186/s12967-023-04718-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Accepted: 11/10/2023] [Indexed: 11/24/2023] Open
Abstract
Fibroblast growth factor receptor 1 (FGFR1) is a core component of the FGFs/FGFR pathway that activates multiple signalling pathways, including ERK1/2, PI3K/AKT, PLCγ, and NF-κB. Aberrant expression of FGFR1 due to gene amplification, chromosome rearrangement, point mutation, and epigenetic deregulations, have been reported in various cancers. FGFR1 overexpression has also been reported in prostate cancer (PCa), but the underlining mechanisms are not clear. Here we report a novel circular RNA, circFGFR1int2, derived from intron 2 of FGFR1 gene, which is overexpressed in PCa and associated with tumor progression. Importantly, we show that circFGFR1int2 facilitates FGFR1 transcription by recruiting transcription activators P65/FUS and by interacting with FGFR1 promoter. Moreover, we show that circFGFR1int2 suppresses post-transcriptional inhibitory effects of miR-4687-5p on FGFR1 mRNA. These mechanisms synergistically promote PCa cell growth, migration, and invasion. Overexpression of circFGFR1int2 is significantly correlated with higher tumor grade, Gleason score, and PSA level, and is a significant unfavorable prognosticator for CRPC-free survival (CFS) (RR = 3.277, 95% confidence interval: 1.192-9.009; P = 0.021). These findings unravelled novel mechanisms controlling FGFR1 gene expression by intronic circRNA and its potential clinicopathological utility as a diagnostic or therapeutic target.
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Affiliation(s)
- Ruyue Wang
- Department of Pathology, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Jinjing Zhong
- Department of Pathology, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Xiuyi Pan
- Department of Pathology, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Zhengzheng Su
- Department of Pathology, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Yunyi Xu
- Department of Pathology, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Mengni Zhang
- Department of Pathology, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Xueqin Chen
- Department of Pathology, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Ni Chen
- Department of Pathology, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Ting Yu
- Department of Pathology, West China Hospital, Sichuan University, Chengdu, 610041, China.
| | - Qiao Zhou
- Department of Pathology, West China Hospital, Sichuan University, Chengdu, 610041, China.
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6
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Zeng X, Tang X, Chen X, Wen H. RNF182 induces p65 ubiquitination to affect PDL1 transcription and suppress immune evasion in lung adenocarcinoma. Immun Inflamm Dis 2023; 11:e864. [PMID: 37249301 DOI: 10.1002/iid3.864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 04/06/2023] [Accepted: 04/21/2023] [Indexed: 05/31/2023] Open
Abstract
BACKGROUND The RING finger (RNF) proteins are a large group of ubiquitin ligases whose aberrant expression is often associated with disease progression. This study examines the function of RNF protein 182 (RNF182) in lung adenocarcinoma (LUAD) cells and its impact on p65 and programmed death ligand 1 (PDL1) regulation. METHODS Expression of RNF182, p65, and PDL1 in LUAD tissues and cells was measured using immunohistochemistry, reverse transcription quantitative polymerase chain reaction (RT-qPCR), and/or western blot (WB) assays. LUAD cells were induced to overexpress RNF182 and p65, followed by cell counting kit-8, colony formation, Transwell, and flow cytometry assays to evaluate the cells' malignant phenotype. Coimmunoprecipitation and WB assays were used to verify RNF182's effect on p65 ubiquitination. Chromatin immunoprecipitation-qPCR and luciferase assays were used to analyze p65's transcriptional regulation of PDL1. Coculture of LUAD with CD8+ cytotoxic T cells was performed to detect lactate dehydrogenase release and interferon-γ and interleukin-2 concentrations. LUAD cells were implanted in mice to analyze tumorigenicity. RESULTS RNF182 was poorly expressed, while p65 and PDL1 were highly expressed in LUAD tissues and cells. RNF182 overexpression suppressed the malignant properties of LUAD cells, and it promoted p65 ubiquitination and protein degradation. p65 activated PDL1 transcription. Overexpression of RNF182 suppressed the PDL1 expression, increased the cytotoxicity in LUAD cells cocultured with CD8+ T cells, and suppressed the tumorigenesis of cancer cells in vivo. However, these tumor-suppressive effects of RNF182 on LUAD cells were blocked by p65 restoration. CONCLUSION This research demonstrates that RNF182 induces p65 ubiquitination to suppress PDL1 transcription and immunosuppression in LUAD.
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Affiliation(s)
- Xingdu Zeng
- Department of Respiratory Medicine, The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, People's Republic of China
| | - Xiaoyuan Tang
- Department of Respiratory Medicine, The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, People's Republic of China
| | - Xingxiang Chen
- Department of Respiratory Medicine, The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, People's Republic of China
| | - Huilan Wen
- Department of Respiratory Medicine, The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, People's Republic of China
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7
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Lacombe L, Hovington H, Brisson H, Mehdi S, Beillevaire D, Émond JP, Wagner A, Villeneuve L, Simonyan D, Ouellet V, Barrès V, Latour M, Aprikian A, Bergeron A, Castonguay V, Couture F, Chevalier S, Brimo F, Fazli L, Fleshner N, Gleave M, Karakiewicz PI, Lattouf JB, Trudel D, van der Kwast T, Mes-Masson AM, Pouliot F, Fradet Y, Audet-Walsh E, Saad F, Guillemette C, Lévesque E. UGT2B28 accelerates prostate cancer progression through stabilization of the endocytic adaptor protein HIP1 regulating AR and EGFR pathways. Cancer Lett 2023; 553:215994. [PMID: 36343786 DOI: 10.1016/j.canlet.2022.215994] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 09/28/2022] [Accepted: 10/31/2022] [Indexed: 11/06/2022]
Abstract
The androgen inactivating UGT2B28 pathway emerges as a predictor of progression in prostate cancer (PCa). However, the clinical significance of UGT2B28 tumoral expression and its contribution to PCa progression remain unclear. Using the Canadian Prostate Cancer Biomarker Network biobank (CPCBN; n = 1512), we analyzed UGT2B28 tumor expression in relation to clinical outcomes in men with localized PCa. UGT2B28 was overexpressed in tumors compared to paired normal adjacent prostatic tissue and was associated with inferior outcomes. Functional analyses indicated that UGT2B28 promoted cell proliferation, and its expression was regulated by the androgen receptor (AR)/ARv7. Mechanistically, UGT2B28 was shown to be a protein partner of the endocytic adaptor protein huntingtin-interacting protein 1 (HIP1), increasing its stability and priming AR/epidermal growth factor receptor (EGFR) pathways, leading to ERK1/2 activation triggering cell proliferation and epithelial-to-mesenchymal transition (EMT). HIP1 knockdown in UGT2B28 positive cells, and dual pharmacological targeting of AR and EGFR pathways, abolished cell proliferative advantages conferred by UGT2B28. In conclusion, UGT2B28 is a prognosticator of progression in localized PCa, regulates both AR and EGFR oncogenic signaling pathways via HIP1, and therefore can be therapeutically targeted by using combination of existing AR/EGFR inhibitors.
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Affiliation(s)
- Louis Lacombe
- Centre de recherche du Centre Hospitalier Universitaire de Québec - Université Laval (CRCHUQc-UL), Centre de recherche sur le cancer (CRC) de l'Université Laval, Faculty of Medicine, Université Laval, Québec, Québec, Canada.
| | - Hélène Hovington
- Centre de recherche du Centre Hospitalier Universitaire de Québec - Université Laval (CRCHUQc-UL), Centre de recherche sur le cancer (CRC) de l'Université Laval, Faculty of Medicine, Université Laval, Québec, Québec, Canada
| | - Hervé Brisson
- Centre de recherche du Centre Hospitalier Universitaire de Québec - Université Laval (CRCHUQc-UL), Centre de recherche sur le cancer (CRC) de l'Université Laval, Faculty of Medicine, Université Laval, Québec, Québec, Canada
| | - Sadia Mehdi
- Centre de recherche du Centre Hospitalier Universitaire de Québec - Université Laval (CRCHUQc-UL), Centre de recherche sur le cancer (CRC) de l'Université Laval, Faculty of Medicine, Université Laval, Québec, Québec, Canada
| | - Déborah Beillevaire
- Centre de recherche du Centre Hospitalier Universitaire de Québec - Université Laval (CRCHUQc-UL), Centre de recherche sur le cancer (CRC) de l'Université Laval, Faculty of Medicine, Université Laval, Québec, Québec, Canada
| | - Jean-Philippe Émond
- Pharmacogenomics Laboratory, CRCHUQc-UL, Centre de recherche sur le cancer (CRC) de l'Université Laval and Faculty of Pharmacy, Université Laval, Québec, Québec, Canada
| | - Antoine Wagner
- Pharmacogenomics Laboratory, CRCHUQc-UL, Centre de recherche sur le cancer (CRC) de l'Université Laval and Faculty of Pharmacy, Université Laval, Québec, Québec, Canada
| | - Lyne Villeneuve
- Pharmacogenomics Laboratory, CRCHUQc-UL, Centre de recherche sur le cancer (CRC) de l'Université Laval and Faculty of Pharmacy, Université Laval, Québec, Québec, Canada
| | - David Simonyan
- Clinical and Evaluative Research Platform, CRCHUQc-UL, Québec, Québec, Canada
| | - Véronique Ouellet
- Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM) and Institut du cancer de Montréal, Montréal, Québec, Canada
| | - Véronique Barrès
- Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM) and Institut du cancer de Montréal, Montréal, Québec, Canada
| | - Mathieu Latour
- Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM) and Institut du cancer de Montréal, Montréal, Québec, Canada
| | - Armen Aprikian
- Research Institute of the McGill University Health Centre and Faculty of Medicine, McGill University, Montréal, Québec, Canada
| | - Alain Bergeron
- Centre de recherche du Centre Hospitalier Universitaire de Québec - Université Laval (CRCHUQc-UL), Centre de recherche sur le cancer (CRC) de l'Université Laval, Faculty of Medicine, Université Laval, Québec, Québec, Canada
| | - Vincent Castonguay
- Centre de recherche du Centre Hospitalier Universitaire de Québec - Université Laval (CRCHUQc-UL), Centre de recherche sur le cancer (CRC) de l'Université Laval, Faculty of Medicine, Université Laval, Québec, Québec, Canada
| | - Félix Couture
- Centre de recherche du Centre Hospitalier Universitaire de Québec - Université Laval (CRCHUQc-UL), Centre de recherche sur le cancer (CRC) de l'Université Laval, Faculty of Medicine, Université Laval, Québec, Québec, Canada
| | - Simone Chevalier
- Research Institute of the McGill University Health Centre and Faculty of Medicine, McGill University, Montréal, Québec, Canada
| | - Fadi Brimo
- Research Institute of the McGill University Health Centre and Faculty of Medicine, McGill University, Montréal, Québec, Canada
| | - Ladan Fazli
- Vancouver Prostate Cancer Centre, Vancouver, British Columbia, Canada
| | | | - Martin Gleave
- Vancouver Prostate Cancer Centre, Vancouver, British Columbia, Canada
| | - Pierre I Karakiewicz
- Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM) and Institut du cancer de Montréal, Montréal, Québec, Canada
| | - Jean-Baptiste Lattouf
- Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM) and Institut du cancer de Montréal, Montréal, Québec, Canada
| | - Dominique Trudel
- Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM) and Institut du cancer de Montréal, Montréal, Québec, Canada
| | | | - Anne-Marie Mes-Masson
- Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM) and Institut du cancer de Montréal, Montréal, Québec, Canada
| | - Frédéric Pouliot
- Centre de recherche du Centre Hospitalier Universitaire de Québec - Université Laval (CRCHUQc-UL), Centre de recherche sur le cancer (CRC) de l'Université Laval, Faculty of Medicine, Université Laval, Québec, Québec, Canada
| | - Yves Fradet
- Centre de recherche du Centre Hospitalier Universitaire de Québec - Université Laval (CRCHUQc-UL), Centre de recherche sur le cancer (CRC) de l'Université Laval, Faculty of Medicine, Université Laval, Québec, Québec, Canada
| | - Etienne Audet-Walsh
- Centre de recherche du Centre Hospitalier Universitaire de Québec - Université Laval (CRCHUQc-UL), Centre de recherche sur le cancer (CRC) de l'Université Laval, Faculty of Medicine, Université Laval, Québec, Québec, Canada
| | - Fred Saad
- Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM) and Institut du cancer de Montréal, Montréal, Québec, Canada
| | - Chantal Guillemette
- Pharmacogenomics Laboratory, CRCHUQc-UL, Centre de recherche sur le cancer (CRC) de l'Université Laval and Faculty of Pharmacy, Université Laval, Québec, Québec, Canada.
| | - Eric Lévesque
- Centre de recherche du Centre Hospitalier Universitaire de Québec - Université Laval (CRCHUQc-UL), Centre de recherche sur le cancer (CRC) de l'Université Laval, Faculty of Medicine, Université Laval, Québec, Québec, Canada.
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8
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Yin Z, Gong G, Wang X, Liu W, Wang B, Yin J. The dual role of autophagy in periprosthetic osteolysis. Front Cell Dev Biol 2023; 11:1123753. [PMID: 37035243 PMCID: PMC10080036 DOI: 10.3389/fcell.2023.1123753] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Accepted: 03/16/2023] [Indexed: 04/11/2023] Open
Abstract
Periprosthetic osteolysis (PPO) induced by wear particles is an important cause of aseptic loosening after artificial joint replacement, among which the imbalance of osteogenesis and osteoclastic processes occupies a central position. The cells involved in PPO mainly include osteoclasts (macrophages), osteoblasts, osteocytes, and fibroblasts. RANKL/RANK/OGP axis is a typical way for osteolysis. Autophagy, a mode of regulatory cell death and maintenance of cellular homeostasis, has a dual role in PPO. Although autophagy is activated in various periprosthetic cells and regulates the release of inflammatory cytokines, osteoclast activation, and osteoblast differentiation, its beneficial or detrimental role remains controversy. In particular, differences in the temporal control and intensity of autophagy may have different effects. This article focuses on the role of autophagy in PPO, and expects the regulation of autophagy to become a powerful target for clinical treatment of PPO.
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Affiliation(s)
- Zhaoyang Yin
- Department of Orthopedics, The First People’s Hospital of Lianyungang, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, China
| | - Ge Gong
- Department of Geriatrics, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Xiang Wang
- Department of Orthopedics, The Affiliated Jiangning Hospital with Nanjing Medical University, Nanjing, China
| | - Wei Liu
- Department of Orthopedics, The Affiliated Jiangning Hospital with Nanjing Medical University, Nanjing, China
| | - Bin Wang
- Department of Orthopedics, The Affiliated Jiangning Hospital with Nanjing Medical University, Nanjing, China
- *Correspondence: Jian Yin, ; Bin Wang,
| | - Jian Yin
- Department of Orthopedics, The Affiliated Jiangning Hospital with Nanjing Medical University, Nanjing, China
- *Correspondence: Jian Yin, ; Bin Wang,
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9
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Luo Y, Liu X, Lin J, Zhong W, Chen Q. Development and validation of novel inflammatory response-related gene signature to predict prostate cancer recurrence and response to immune checkpoint therapy. MATHEMATICAL BIOSCIENCES AND ENGINEERING : MBE 2022; 19:11345-11366. [PMID: 36124593 DOI: 10.3934/mbe.2022528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The aim of this study is to construct an inflammatory response-related genes (IRRGs) signature to monitor biochemical recurrence (BCR) and treatment effects in prostate cancer patients (PCa). A gene signature for inflammatory responses was constructed on the basis of the data from the Cancer Genome Atlas (TCGA) database, and validated in external datasets. It was analyzed using receiver operating characteristic curve, BCR-free survival, Cox regression, and nomogram. Distribution analysis and external model comparison were utilized. Then, enrichment analysis, tumor mutation burden, tumor immune microenvironment, and immune cell infiltration signatures were investigated. The role of the signature in immunotherapy was evaluated. The expression patterns of core genes were verified by RNA sequencing. We identified an IRRGs signature in the TCGA-PRAD cohort and verified it well in two other independent external datasets. The signature was a robust and independent prognostic index for predicting the BCR of PCa. The high-risk group of our signature predicted a shortened BCR time and an aggressive disease progression. A nomogram was constructed to predict BCR-free time in clinical practices. Neutrophils and CD8+ T cells were in higher abundance among the low-risk individuals. Immune functions varied significantly between the two groups and immune checkpoint therapy worked better for the low-risk patients. The expression of four IRRGs showed significant differences between PCa and surrounding benign tissues, and were validated in BPH-1 and DU145 cell lines by RNA sequencing. Our signature served as a reliable and promising biomarker for predicting the prognosis and evaluating the efficacy of immunotherapy, facilitating a better outcome for PCa patients.
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Affiliation(s)
- Yong Luo
- Department of Urology, the Second People's Hospital of Foshan, Affiliated Foshan Hospital of Southern Medical University, Foshan, China
| | - Xiaopeng Liu
- Department of Science and Teaching, the Second People's Hospital of Foshan, Affiliated Foshan Hospital of Southern Medical University, Foshan, China
| | - Jingbo Lin
- Department of Urology, the Second People's Hospital of Foshan, Affiliated Foshan Hospital of Southern Medical University, Foshan, China
| | - Weide Zhong
- Department of Urology, the Second People's Hospital of Foshan, Affiliated Foshan Hospital of Southern Medical University, Foshan, China
- Department of Urology, Guangdong Key Laboratory of Clinical Molecular Medicine and Diagnostics, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, China
- Urology Key Laboratory of Guangdong Province, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, China
- Guangdong Provincial Institute of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou, China
- State Key Laboratory of Quality Research in Chinese Medicines, Macau University of Science and Technology, Macau, China
| | - Qingbiao Chen
- Department of Urology, the Second People's Hospital of Foshan, Affiliated Foshan Hospital of Southern Medical University, Foshan, China
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10
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High Keratin-7 Expression in Benign Peri-Tumoral Prostatic Glands Is Predictive of Bone Metastasis Onset and Prostate Cancer-Specific Mortality. Cancers (Basel) 2022; 14:cancers14071623. [PMID: 35406395 PMCID: PMC8997075 DOI: 10.3390/cancers14071623] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Accepted: 03/21/2022] [Indexed: 12/10/2022] Open
Abstract
BACKGROUND New predictive biomarkers are needed to accurately predict metastasis-free survival (MFS) and cancer-specific survival (CSS) in localized prostate cancer (PC). Keratin-7 (KRT7) overexpression has been associated with poor prognosis in several cancers and is described as a novel prostate progenitor marker in the mouse prostate. METHODS KRT7 expression was evaluated in prostatic cell lines and in human tissue by immunohistochemistry (IHC, on advanced PC, n = 91) and immunofluorescence (IF, on localized PC, n = 285). The KRT7 mean fluorescence intensity (MFI) was quantified in different compartments by digital analysis and correlated to clinical endpoints in the localized PC cohort. RESULTS KRT7 is expressed in prostatic cell lines and found in the basal and supra-basal compartment from healthy prostatic glands and benign peri-tumoral glands from localized PC. The KRT7 staining is lost in luminal cells from localized tumors and found as an aberrant sporadic staining (2.2%) in advanced PC. In the localized PC cohort, high KRT7 MFI above the 80th percentile in the basal compartment was significantly and independently correlated with MFS and CSS, and with hypertrophic basal cell phenotype. CONCLUSION High KRT7 expression in benign glands is an independent biomarker of MFS and CSS, and its expression is lost in tumoral cells. These results require further validation on larger cohorts.
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11
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Zhang Y, Zhu S, Du Y, Xu F, Sun W, Xu Z, Wang X, Qian P, Zhang Q, Feng J, Xu Y. RelB upregulates PD-L1 and exacerbates prostate cancer immune evasion. J Exp Clin Cancer Res 2022; 41:66. [PMID: 35177112 PMCID: PMC8851785 DOI: 10.1186/s13046-022-02243-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 12/31/2021] [Indexed: 11/10/2022] Open
Abstract
Background
The interaction between programmed death receptor (PD-1) and its ligand (PD-L1) is essential for suppressing activated T-lymphocytes. However, the precise mechanisms underlying PD-L1 overexpression in tumours have yet to be fully elucidated. Here, we describe that RelB participates in the immune evasion of prostate cancer (PCa) via cis/trans transcriptional upregulation of PD-L1.
Methods
Based on transcriptome results, RelB was manipulated in multiple human and murine PCa cell lines. Activated CD4+ and CD8+ T cells were cocultured with PCa cells with different levels of RelB to examine the effect of tumourous RelB on T cell immunity. Male mice were injected with murine PCa cells to validate the effect of RelB on the PD-1/PD-L1-mediated immune checkpoint using both tumour growth and metastatic experimental models.
Results
PD-L1 is uniquely expressed at a high level in PCa with high constitutive RelB and correlates with the patients’ Gleason scores. Indeed, a high level of PD-L1 is associated with RelB nuclear translocation in AR-negative aggressive PCa cells. Conversely, the silencing of RelB in advanced PCa cells resulted in reduced PD-L1 expression and enhanced susceptibility of PCa cells to the T cell immune response in vitro and in vivo. Mechanistically, a proximal NF-κB enhancer element was identified in the core promoter region of the human CD274 gene, which is responsible for RelB-mediated PD-L1 transcriptional activation. This finding provides an informative insight into immune checkpoint blockade by administering RelB within the tumour microenvironment.
Conclusion
This study deciphers the molecular mechanism by which tumourous RelB contributes to immune evasion by inhibiting T cell immunity via the amplification of the PD-L1/PD-1-mediated immune checkpoint. Supplementary Information The online version contains supplementary material available at 10.1186/s13046-022-02243-2.
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Affiliation(s)
- Yanyan Zhang
- Laboratory of Cancer Biology, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & the Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, 210009, China
| | - Shuyi Zhu
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Nanjing Medical University, Nanjing, 211166, China
| | - Yuanyuan Du
- Department of Medical Oncology, the Affiliated Cancer Hospital of Nanjing Medical University, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research, Nanjing, 210009, China
| | - Fan Xu
- Laboratory of Cancer Biology, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & the Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, 210009, China
| | - Wenbo Sun
- Laboratory of Cancer Biology, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & the Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, 210009, China
| | - Zhi Xu
- Department of General Surgery, the First Affiliated Hospital with Nanjing Medical University, Nanjing, 210029, China
| | - Xiumei Wang
- Laboratory of Cancer Biology, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & the Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, 210009, China
| | - Peipei Qian
- Laboratory of Cancer Biology, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & the Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, 210009, China
| | - Qin Zhang
- Department of Surgery, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & the Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, 210009, China.
| | - Jifeng Feng
- Department of Medical Oncology, the Affiliated Cancer Hospital of Nanjing Medical University, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research, Nanjing, 210009, China.
| | - Yong Xu
- Laboratory of Cancer Biology, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & the Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, 210009, China. .,Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Nanjing Medical University, Nanjing, 211166, China.
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12
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Vlachostergios PJ, Karathanasis A, Papandreou CN, Tzortzis V. Early mRNA Expression of Neuroendocrine Differentiation Signals Predicts Recurrence After Radical Prostatectomy: A Transcriptomic Analysis. World J Oncol 2022; 12:232-239. [PMID: 35059083 PMCID: PMC8734499 DOI: 10.14740/wjon1423] [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: 10/03/2021] [Accepted: 11/30/2021] [Indexed: 12/04/2022] Open
Abstract
Background Neuroendocrine differentiation (NED) of prostate cancer (PC) is a process that often occurs under evolutionary pressure from pharmacologic blockade of androgen receptor signaling at advanced stages of the disease. Identifying a subset of early PC that has a higher likelihood to evolve into this entity is key for developing therapeutic strategies that could more effectively target this phenotype. This study aimed to assess the prognostic relevance of mRNA expression of major players involved in NED of primary prostate tumors. Methods RNA sequencing data from 122 patients with localized PC were analyzed. Transcript levels of key genes involved in NED, with a focus on endothelin axis and nuclear factor kappa B (NF-κB), were assessed and were correlated with time to prostate specific antigen (PSA) recurrence. Copy number alteration of tumor suppressor genes and gene expression of additional signals hallmarking NED was compared between altered and unaltered groups, including lineage determining transcription factors, transcriptional repressors, cell cycle and epigenetic regulators. Results The presence of altered mRNA expression using a z-score threshold of 2 in NFKB1, RELA, EDN1, EDNRA, and EDNRB genes was associated with a higher Gleason score (P < 0.001) and a shorter time to biochemical recurrence (BCR) (P = 0.029). There was a significant direct correlation between NFKB1 and RELA (P < 0.001), NFKB1 and EDNRA (P < 0.001), NFKB1 and EDNRB (P < 0.001), EDNRA and EDNRB expression (P < 0.001). ASCL1 (q < 0.001), ONECUT2 (q < 0.001), DLL3 (q = 0.019), AURKA (q = 0.013), AURKB (q = 0.014), PLK1 (q < 0.001), and EZH2 (q < 0.001) were enriched in patients with tumors harboring alterations in endothelin axis and NF-κB subunit genes whereas REST was downregulated (q < 0.001). Conclusions This analysis suggests that altered mRNA expression of NF-κB and endothelin axis genes in early PC is not only a harbinger of a more aggressive clinical course but is also associated with aberrant gene expression of several transcription factors, transcriptional repressors, cell cycle and epigenetic regulators that are directly involved in NED, in line with their biological roles. This may have implications for closer follow-up and potential use of targeted therapeutic approaches postoperatively in the adjuvant setting to improve outcomes of these patients.
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Affiliation(s)
- Panagiotis J Vlachostergios
- Division of Hematology and Medical Oncology, Department of Medicine, Weill Cornell Medicine, New York, NY 10065, USA
| | - Athanasios Karathanasis
- Department of Urology, University of Thessaly School of Health Sciences Faculty of Medicine, University Hospital of Larissa, Larissa 41100, Greece
| | - Christos N Papandreou
- Department of Medical Oncology, Faculty of Medicine Papageorgiou Hospital, Aristotle University of Thessaloniki, School of Health Sciences, Thessaloniki 54124, Greece
| | - Vassilios Tzortzis
- Department of Urology, University of Thessaly School of Health Sciences Faculty of Medicine, University Hospital of Larissa, Larissa 41100, Greece
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13
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A Perspective on Withania somnifera Modulating Antitumor Immunity in Targeting Prostate Cancer. J Immunol Res 2021; 2021:9483433. [PMID: 34485538 PMCID: PMC8413038 DOI: 10.1155/2021/9483433] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Accepted: 08/07/2021] [Indexed: 01/07/2023] Open
Abstract
Medicinal plants serve as a lead source of bioactive compounds and have been an integral part of day-to-day life in treating various disease conditions since ancient times. Withaferin A (WFA), a bioactive ingredient of Withania somnifera, has been used for health and medicinal purposes for its adaptogenic, anti-inflammatory, and anticancer properties long before the published literature came into existence. Nearly 25% of pharmaceutical drugs are derived from medicinal plants, classified as dietary supplements. The bioactive compounds in these supplements may serve as chemotherapeutic substances competent to inhibit or reverse the process of carcinogenesis. The role of WFA is appreciated to polarize tumor-suppressive Th1-type immune response inducing natural killer cell activity and may provide an opportunity to manipulate the tumor microenvironment at an early stage to inhibit tumor progression. This article signifies the cumulative information about the role of WFA in modulating antitumor immunity and its potential in targeting prostate cancer.
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14
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Clairefond S, Ouellet V, Péant B, Barrès V, Karakiewicz PI, Mes-Masson AM, Saad F. Expression of ERBB Family Members as Predictive Markers of Prostate Cancer Progression and Mortality. Cancers (Basel) 2021; 13:1688. [PMID: 33918389 PMCID: PMC8038288 DOI: 10.3390/cancers13071688] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 03/25/2021] [Accepted: 03/31/2021] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND EGFR, ERBB2, ERBB3, and ERBB4 are growth receptors of the ERBB family implicated in the development of epithelial cancers. Studies have suggested a role for EGFR and ERBB3 in the development of prostate cancer (PC), while the involvement of ERBB2 and ERBB4 remains unclear. In this study, we evaluated the expression of all members of the ERBB family in PC tissue from a large cohort and determined their contribution, alone or in combination, as prognostic markers. METHODS Using immunofluorescence coupled with digital image analyses, we quantified the expression of EGFR, ERBB2, ERBB3, and ERBB4 on radical prostatectomy specimens (n = 285) arrayed on six tissue microarrays. By combining EGFR, ERBB2, and ERBB3 protein expression in a decision tree model, we identified an association with biochemical recurrence (log rank = 25.295, p < 0.001), development of bone metastases (log rank = 23.228, p < 0.001), and cancer-specific mortality (log rank = 24.586, p < 0.001). CONCLUSIONS Our study revealed that specific protein expression patterns of ERBB family members are associated with an increased risk of PC progression and mortality.
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Affiliation(s)
- Sylvie Clairefond
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM) et Institut du Cancer de Montréal (ICM), Montreal, QC H2X 0A9, Canada; (S.C.); (V.O.); (B.P.); (V.B.); (P.I.K.); (A.-M.M.-M.)
- Département de Médecine, Faculté de Médecine, Université de Montréal, Montreal, QC H3T 1J4, Canada
| | - Véronique Ouellet
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM) et Institut du Cancer de Montréal (ICM), Montreal, QC H2X 0A9, Canada; (S.C.); (V.O.); (B.P.); (V.B.); (P.I.K.); (A.-M.M.-M.)
| | - Benjamin Péant
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM) et Institut du Cancer de Montréal (ICM), Montreal, QC H2X 0A9, Canada; (S.C.); (V.O.); (B.P.); (V.B.); (P.I.K.); (A.-M.M.-M.)
| | - Véronique Barrès
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM) et Institut du Cancer de Montréal (ICM), Montreal, QC H2X 0A9, Canada; (S.C.); (V.O.); (B.P.); (V.B.); (P.I.K.); (A.-M.M.-M.)
| | - Pierre I. Karakiewicz
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM) et Institut du Cancer de Montréal (ICM), Montreal, QC H2X 0A9, Canada; (S.C.); (V.O.); (B.P.); (V.B.); (P.I.K.); (A.-M.M.-M.)
- Département de Chirurgie, Faculté de Médecine, Université de Montréal, Montreal, QC H3C 3J7, Canada
| | - Anne-Marie Mes-Masson
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM) et Institut du Cancer de Montréal (ICM), Montreal, QC H2X 0A9, Canada; (S.C.); (V.O.); (B.P.); (V.B.); (P.I.K.); (A.-M.M.-M.)
- Département de Médecine, Faculté de Médecine, Université de Montréal, Montreal, QC H3T 1J4, Canada
| | - Fred Saad
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM) et Institut du Cancer de Montréal (ICM), Montreal, QC H2X 0A9, Canada; (S.C.); (V.O.); (B.P.); (V.B.); (P.I.K.); (A.-M.M.-M.)
- Département de Chirurgie, Faculté de Médecine, Université de Montréal, Montreal, QC H3C 3J7, Canada
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15
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Rybicki BA, Sadasivan SM, Chen Y, Kravtsov O, Palangmonthip W, Arora K, Gupta NS, Williamson S, Bobbitt K, Chitale DA, Tang D, Rundle AG, Iczkowski KA. Growth and differentiation factor 15 and NF-κB expression in benign prostatic biopsies and risk of subsequent prostate cancer detection. Cancer Med 2021; 10:3013-3025. [PMID: 33784024 PMCID: PMC8085972 DOI: 10.1002/cam4.3850] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 02/24/2021] [Accepted: 02/26/2021] [Indexed: 12/16/2022] Open
Abstract
Growth and differentiation factor 15 (GDF‐15), also known as macrophage inhibitory cytokine 1 (MIC‐1), may act as both a tumor suppressor and promotor and, by regulating NF‐κB and macrophage signaling, promote early prostate carcinogenesis. To determine whether expression of these two inflammation‐related proteins affect prostate cancer susceptibility, dual immunostaining of benign prostate biopsies for GDF‐15 and NF‐κB was done in a study of 503 case‐control pairs matched on date, age, and race, nested within a historical cohort of 10,478 men. GDF‐15 and NF‐κB expression levels were positively correlated (r = 0.39; p < 0.0001), and both were significantly lower in African American (AA) compared with White men. In adjusted models that included both markers, the odds ratio (OR) for NF‐κB expression was statistically significant, OR =0.87; p = 0.03; 95% confidence interval (CI) =0.77–0.99, while GDF‐15 expression was associated with a nominally increased risk, OR =1.06; p = 0.27; 95% CI =0.96–1.17. When modeling expression levels by quartiles, the highest quartile of NF‐κB expression was associated with almost a fifty percent reduction in prostate cancer risk (OR =0.51; p = 0.03; 95% CI =0.29–0.92). In stratified models, NF‐κB had the strongest negative association with prostate cancer in non‐aggressive cases (p = 0.03), older men (p = 0.03), and in case‐control pairs with longer follow‐up (p = 0.02). Risk associated with GDF‐15 expression was best fit using nonlinear regression modeling where both first (p = 0.02) and second (p = 0.03) order GDF‐15 risk terms were associated with significantly increased risk. This modeling approach also revealed significantly increased risk associated with GDF‐15 expression for subsamples defined by AA race, aggressive disease, younger age, and in case‐control pairs with longer follow‐up. Therefore, although positively correlated in benign prostatic biopsies, NF‐κB and GDF‐15 expression appear to exert opposite effects on risk of prostate tumor development.
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Affiliation(s)
- Benjamin A Rybicki
- Department of Public Health Sciences, Henry Ford Hospital, Detroit, MI, USA
| | - Sudha M Sadasivan
- Department of Public Health Sciences, Henry Ford Hospital, Detroit, MI, USA
| | - Yalei Chen
- Department of Public Health Sciences, Henry Ford Hospital, Detroit, MI, USA
| | | | - Watchareepohn Palangmonthip
- Medical College of Wisconsin, Pathology, Milwaukee, WI, USA.,Department of Pathology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Kanika Arora
- Department of Pathology, Henry Ford Hospital, Detroit, MI, USA
| | - Nilesh S Gupta
- Department of Pathology, Henry Ford Hospital, Detroit, MI, USA
| | - Sean Williamson
- Department of Pathology, Henry Ford Hospital, Detroit, MI, USA
| | - Kevin Bobbitt
- Department of Public Health Sciences, Henry Ford Hospital, Detroit, MI, USA
| | | | - Deliang Tang
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, NY, USA
| | - Andrew G Rundle
- Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, NY, USA
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Elevated Expression of Glycerol-3-Phosphate Phosphatase as a Biomarker of Poor Prognosis and Aggressive Prostate Cancer. Cancers (Basel) 2021; 13:cancers13061273. [PMID: 33805661 PMCID: PMC8000625 DOI: 10.3390/cancers13061273] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 02/25/2021] [Accepted: 03/09/2021] [Indexed: 12/12/2022] Open
Abstract
The limitations of the biomarker prostate-specific antigen (PSA) necessitate the pursuit of biomarkers capable of better identifying high-risk prostate cancer (PC) patients in order to improve their therapeutic management and outcomes. Aggressive prostate tumors characteristically exhibit high rates of glycolysis and lipogenesis. Glycerol 3-phosphate phosphatase (G3PP), also known as phosphoglycolate phosphatase (PGP), is a recently identified mammalian enzyme, shown to play a role in the regulation of glucose metabolism, lipogenesis, lipolysis, and cellular nutrient-excess detoxification. We hypothesized that G3PP may relieve metabolic stress in cancer cells and assessed the association of its expression with PC patient prognosis. Using immunohistochemical staining, we assessed the epithelial expression of G3PP in two different radical prostatectomy (RP) cohorts with a total of 1797 patients, for whom information on biochemical recurrence (BCR), metastasis, and mortality was available. The association between biomarker expression, biochemical recurrence (BCR), bone metastasis, and prostate cancer-specific survival was established using log-rank and multivariable Cox regression analyses. High expression of G3PP in PC epithelial cells is associated with an increased risk of BCR, bone metastasis, and PC-specific mortality. Multivariate analysis revealed high G3PP expression in tumors as an independent predictor of BCR and bone metastasis development. High G3PP expression in tumors from patients eligible for prostatectomies is a new and independent prognostic biomarker of poor prognosis and aggressive PC for recurrence, bone metastasis, and mortality.
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Tsui KH, Chang KS, Sung HC, Hsu SY, Lin YH, Hou CP, Yang PS, Chen CL, Feng TH, Juang HH. Mucosa-Associated Lymphoid Tissue 1 Is an Oncogene Inducing Cell Proliferation, Invasion, and Tumor Growth via the Upregulation of NF-κB Activity in Human Prostate Carcinoma Cells. Biomedicines 2021; 9:biomedicines9030250. [PMID: 33802402 PMCID: PMC8000469 DOI: 10.3390/biomedicines9030250] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 02/21/2021] [Accepted: 02/26/2021] [Indexed: 11/16/2022] Open
Abstract
Prostate cancer is one of the most common seen malignancies and the leading cause of cancer-related death among men. Given the importance of early diagnosis and treatment, it is worth to identify a potential novel therapeutic target for prostate cancer. Mucosa-associated lymphoid tissue 1 (MALT1) is a novel gene involved in nuclear factor κB (NF-κB) signal transduction by acting as an adaptor protein and paracaspase, with an essential role in inflammation and tumorigenesis in many cancers. This study investigated the functions and the potential regulatory mechanisms of MALT1 in the human prostate cancer cells. We found that MALT1 is abundant in prostate cancer tissues. MALT1 facilitated NF-κB subunits (p50 and p65) nuclear translocation to induce gene expression of interleukin 6 (IL-6) and C-X-C motif chemokine 5 (CXCL5) in prostate carcinoma cells. MALT1 promoted cell proliferation, invasion, and tumor growth in vitro and in vivo. MALT1 enhanced NF-κB activity in prostate carcinoma cells; moreover, NF-κB induced MALT1 expression determined by reporter and immunoblot assays, implying there is a positive feedback loop between MALT1 and NF-κB. In conclusion, MALT1 is a NF-κB-induced oncogene in the human prostate carcinoma cells.
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Affiliation(s)
- Ke-Hung Tsui
- Department of Urology, Chang Gung Memorial Hospital-Linkou, Kwei-Shan, Tao-Yuan 33302, Taiwan; (K.-H.T.); (Y.-H.L.); (C.-P.H.); (P.-S.Y.); (C.-L.C.)
| | - Kang-Shuo Chang
- Department of Anatomy, College of Medicine, Chang Gung University, Kwei-Shan, Tao-Yuan 33302, Taiwan; (K.-S.C.); (H.-C.S.); (S.-Y.H.)
| | - Hsin-Ching Sung
- Department of Anatomy, College of Medicine, Chang Gung University, Kwei-Shan, Tao-Yuan 33302, Taiwan; (K.-S.C.); (H.-C.S.); (S.-Y.H.)
- Graduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University, Kwei-Shan, Tao-Yuan 33302, Taiwan
| | - Shu-Yuan Hsu
- Department of Anatomy, College of Medicine, Chang Gung University, Kwei-Shan, Tao-Yuan 33302, Taiwan; (K.-S.C.); (H.-C.S.); (S.-Y.H.)
- Graduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University, Kwei-Shan, Tao-Yuan 33302, Taiwan
| | - Yu-Hsiang Lin
- Department of Urology, Chang Gung Memorial Hospital-Linkou, Kwei-Shan, Tao-Yuan 33302, Taiwan; (K.-H.T.); (Y.-H.L.); (C.-P.H.); (P.-S.Y.); (C.-L.C.)
| | - Chen-Pang Hou
- Department of Urology, Chang Gung Memorial Hospital-Linkou, Kwei-Shan, Tao-Yuan 33302, Taiwan; (K.-H.T.); (Y.-H.L.); (C.-P.H.); (P.-S.Y.); (C.-L.C.)
| | - Pei-Shan Yang
- Department of Urology, Chang Gung Memorial Hospital-Linkou, Kwei-Shan, Tao-Yuan 33302, Taiwan; (K.-H.T.); (Y.-H.L.); (C.-P.H.); (P.-S.Y.); (C.-L.C.)
| | - Chien-Lun Chen
- Department of Urology, Chang Gung Memorial Hospital-Linkou, Kwei-Shan, Tao-Yuan 33302, Taiwan; (K.-H.T.); (Y.-H.L.); (C.-P.H.); (P.-S.Y.); (C.-L.C.)
| | - Tsui-Hsia Feng
- School of Nursing, College of Medicine, Chang Gung University, Kwei-Shan, Tao-Yuan 33302, Taiwan;
| | - Horng-Heng Juang
- Department of Urology, Chang Gung Memorial Hospital-Linkou, Kwei-Shan, Tao-Yuan 33302, Taiwan; (K.-H.T.); (Y.-H.L.); (C.-P.H.); (P.-S.Y.); (C.-L.C.)
- Department of Anatomy, College of Medicine, Chang Gung University, Kwei-Shan, Tao-Yuan 33302, Taiwan; (K.-S.C.); (H.-C.S.); (S.-Y.H.)
- Graduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University, Kwei-Shan, Tao-Yuan 33302, Taiwan
- Correspondence: ; Tel.: +886-3-2118800; Fax: +886-3-2118112
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18
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Sopyllo K, Erickson AM, Mirtti T. Grading Evolution and Contemporary Prognostic Biomarkers of Clinically Significant Prostate Cancer. Cancers (Basel) 2021; 13:cancers13040628. [PMID: 33562508 PMCID: PMC7914622 DOI: 10.3390/cancers13040628] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2020] [Revised: 01/26/2021] [Accepted: 01/28/2021] [Indexed: 12/20/2022] Open
Abstract
Simple Summary Prostate cancer treatment decisions are based on clinical stage and histological diagnosis, including Gleason grading assessed by a pathologist, in biopsies. Prior to staging and grading, serum or blood prostate-specific antigen (PSA) levels are measured and often trigger diagnostic examinations. However, PSA is best suited as a marker of cancer relapse after initial treatment. In this review, we first narratively describe the evolution of histological grading, the current status of Gleason pattern-based diagnostics and glance into future methodology of risk assessment by histological examination. In the second part, we systematically review the biomarkers that have been shown, independent from clinical characteristics, to correlate with clinically relevant end-points, i.e., occurrence of metastases, disease-specific mortality and overall survival after initial treatment of localized prostate cancer. Abstract Gleason grading remains the strongest prognostic parameter in localized prostate adenocarcinoma. We have here outlined the evolution and contemporary practices in pathological evaluation of prostate tissue samples for Gleason score and Grade group. The state of more observer-independent grading methods with the aid of artificial intelligence is also reviewed. Additionally, we conducted a systematic review of biomarkers that hold promise in adding independent prognostic or predictive value on top of clinical parameters, Grade group and PSA. We especially focused on hard end points during the follow-up, i.e., occurrence of metastasis, disease-specific mortality and overall mortality. In peripheral blood, biopsy-detected prostate cancer or in surgical specimens, we can conclude that there are more than sixty biomarkers that have been shown to have independent prognostic significance when adjusted to conventional risk assessment or grouping. Our search brought up some known putative markers and panels, as expected. Also, the synthesis in the systematic review indicated markers that ought to be further studied as part of prospective trials and in well characterized patient cohorts in order to increase the resolution of the current clinico-pathological prognostic factors.
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Affiliation(s)
- Konrad Sopyllo
- Research Program in Systems Oncology, Faculty of Medicine, University of Helsinki, 00014 Helsinki, Finland;
| | - Andrew M. Erickson
- Nuffield Department of Surgical Sciences, University of Oxford, Oxford OX3 9DU, UK;
| | - Tuomas Mirtti
- Research Program in Systems Oncology, Faculty of Medicine, University of Helsinki, 00014 Helsinki, Finland;
- Department of Pathology, HUS Diagnostic Centre, Helsinki University Hospital, 00029 Helsinki, Finland
- Correspondence:
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Li M, Yao M, Wang W, Wan P, Chu X, Zheng Y, Yang K, Zhang Y. Nitrogen-containing bisphosphonate-loaded micro-arc oxidation coating for biodegradable magnesium alloy pellets inhibits osteosarcoma through targeting of the mevalonate pathway. Acta Biomater 2021; 121:682-694. [PMID: 33220487 DOI: 10.1016/j.actbio.2020.11.019] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 10/29/2020] [Accepted: 11/12/2020] [Indexed: 12/20/2022]
Abstract
Osteosarcoma (OS) remains one of the most threatening primary malignant human tumors of the bone, especially in the first or second decade of life. Unfortunately, the clinical therapeutic efficacy has not substantially improved over the past four decades. Therefore, to achieve efficient tumor eradication, a new approach to prevent tumor recurrence is urgently needed. Here, we develop a new bisphosphonate (BP)-loaded microarc oxidation (MAO) coated magnesium-strontium (Mg-Sr) alloy pellet that can inhibit OS, and we illuminate the cellular and molecular mechanisms of the inhibiting effect. To generate such pellets, nitrogen-containing BP is chemically conjugated with a MAO coating on hollow Mg-Sr alloys. We demonstrate that BP coated Mg pellet has multiple desired features for OS therapy through in vitro and in vivo studies. At the cellular level, BP coated Mg pellets not only induce apoptosis and necrosis, as well as antitumor invasion of OS cells in the two-dimensional (2D) cell culture environment, but also damage the formation of multicellular tumor spheroids by OS cell lines in the three-dimensional (3D) cell culture environment. At the in vivo level, BP coated Mg pellets can destroy tumors and prevent neoplasm recurrence via synergistic Mg degradation and drug release. It is further suggested that the superior inhibitory effect on OS of our pellet is achieved by inhibiting the mevalonate pathway at the molecular level. Hence, these results collectively show that the BP coated Mg pellet is a promising candidate for future applications in repairing defects after tumor removal in OS therapy.
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20
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Tandon M, Othman AH, Winogradzki M, Pratap J. Bone metastatic breast cancer cells display downregulation of PKC-ζ with enhanced glutamine metabolism. Gene 2021; 775:145419. [PMID: 33444686 DOI: 10.1016/j.gene.2021.145419] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 10/28/2020] [Accepted: 01/05/2021] [Indexed: 11/20/2022]
Abstract
BACKGROUND Breast cancer is the most commonly diagnosed cancer among women and its metastases results in poor survival rates in patients. The ability to alter metabolism is a key attribute cancer cells use to survive within different metastatic microenvironments and cause organ failure. We hypothesized that evaluation of metabolic alterations within tumor cells could provide a better understanding of cancer metastasis. Therefore, to investigate underlying metabolic alterations during metastases, we utilized human MDA-MB-231 and mouse 4T1 models that closely mimic human breast cancer metastasis. METHODS The glycolysis and glutamine pathway-related changes were examined in bone metastatic cells by XF-24 extracellular flux analyzer and western blotting. The expression levels of genes related to metabolism were examined by PCR arrays. RESULTS The MDA-MB-231 cells isolated after bone metastases showed reduced glucose uptake and glycolysis compared to parental cells, suggesting that these cells could alter metabolic requirements for survival. To understand these metabolic changes, we investigated glutamine, a common and naturally occurring non-essential amino acid. Interestingly, in reduced glucose conditions both cell lines showed dependence on glutamine for cell survival, and with glutamine withdrawal significantly increasing apoptotic cell death. Glutamine was also critical for normal cell proliferation even in the presence of high glucose concentrations. To further understand this metabolic switch in metastatic cells, we examined the genes related to metabolism and identified a more than seven-fold downregulation of protein kinase C zeta (PKC-ζ) expression levels in bone-derived MDA-MB-231 cells compared to the parental population. The PKC-ζ levels were also significantly reduced in metastatic 4T1 cells compared to non-metastatic MT1A2 cells. Since PKC-ζ deficiency promotes glutamine utilization via the serine biosynthesis pathway, we examined glutamine metabolism. The ectopic expression of PKC-ζ inhibited glutamine conversion to glutamate, while mutant PKC-ζ reversed this effect. Furthermore, the gene expression levels of enzymes involved in serine biosynthesis, phosphoserine phosphatase (PSPH), phosphoserine aminotransferase (PSAT1), and phosphoglycerate dehydrogenase (PHGDH) showed upregulation following glucose deprivation with PKC-ζ deficiency. The PHGDH upregulation was inhibited by ectopically expressing wild type but not mutated PKC-ζ in glucose-deprived conditions. CONCLUSIONS Our results support the upregulation of serine biosynthesis pathway genes and downregulation of PKC-ζ as potential metabolic alterations for bone metastatic breast cancer cells.
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Affiliation(s)
- Manish Tandon
- Suite 507, Armour Academic Building, Cell & Molecular Medicine, Rush University Medical Center, Chicago, IL 60612, United States
| | - Ahmad H Othman
- Suite 507, Armour Academic Building, Cell & Molecular Medicine, Rush University Medical Center, Chicago, IL 60612, United States
| | - Marcus Winogradzki
- Suite 507, Armour Academic Building, Cell & Molecular Medicine, Rush University Medical Center, Chicago, IL 60612, United States
| | - Jitesh Pratap
- Suite 507, Armour Academic Building, Cell & Molecular Medicine, Rush University Medical Center, Chicago, IL 60612, United States.
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21
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Wang J, Jin W, Zhou X, Li J, Xu C, Ma Z, Wang J, Qin L, Zhou B, Ding W, Gao T, Yao H, Chen Z. Identification, Structure-Activity Relationships of Marine-Derived Indolocarbazoles, and a Dual PKCθ/δ Inhibitor with Potent Antipancreatic Cancer Efficacy. J Med Chem 2020; 63:12978-12991. [PMID: 33100009 DOI: 10.1021/acs.jmedchem.0c01271] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Protein kinases C (PKCs) are a family of serine/threonine kinases involved in various cellular processes, including proliferation, differentiation, cell survival, and apoptosis. Here, we report the identification, structure-activity relationship (SAR), and 3D-QSAR studies of 69 natural indolocarbazoles, including 15 new compounds, from marine streptomyces strains. Interestingly, we found that the chair conformational isomer of 7-oxo-staurosporine (compound 15) inhibited PKCθ more potently than the corresponding boat isomer. An evaluation of kinase selectivity and antitumor efficacy revealed that 15 was a potent dual PKCθ/δ inhibitor and that it could efficiently inhibit tumor growth in pancreatic cancer (PC) by inducing cellular apoptosis and suppressing the NF-κB/p-P65 pathway. In addition, we demonstrated that overexpression of p-PKCδ and p-P65 was associated with poor survival rates in patients with PC, and p-PKCθ expression also showed significant positive correlations with p-PKCδ and p-P65 levels. Finally, the PC patient-derived xenograft model further confirmed the potential anti-PC efficacy of 15.
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Affiliation(s)
- Jinhui Wang
- Institute of Marine Biology and Pharmacology, Ocean College, Zhejiang University, No. 1 Zheda Road, Zhoushan 316021, China
| | - Weiyang Jin
- College of Life and Environmental Sciences, Hangzhou Normal University, No. 2318, Yuhangtang Road, Hangzhou 311121, China
| | - Xiaoxin Zhou
- College of Life and Environmental Sciences, Hangzhou Normal University, No. 2318, Yuhangtang Road, Hangzhou 311121, China
| | - Jiaqi Li
- Institute of Marine Biology and Pharmacology, Ocean College, Zhejiang University, No. 1 Zheda Road, Zhoushan 316021, China
| | - Chengdong Xu
- Institute of Marine Biology and Pharmacology, Ocean College, Zhejiang University, No. 1 Zheda Road, Zhoushan 316021, China
| | - Zhongjun Ma
- Institute of Marine Biology and Pharmacology, Ocean College, Zhejiang University, No. 1 Zheda Road, Zhoushan 316021, China
| | - Jianan Wang
- Institute of Marine Biology and Pharmacology, Ocean College, Zhejiang University, No. 1 Zheda Road, Zhoushan 316021, China
| | - Lele Qin
- Institute of Marine Biology and Pharmacology, Ocean College, Zhejiang University, No. 1 Zheda Road, Zhoushan 316021, China
| | - Biao Zhou
- Institute of Marine Biology and Pharmacology, Ocean College, Zhejiang University, No. 1 Zheda Road, Zhoushan 316021, China
| | - Wanjing Ding
- Institute of Marine Biology and Pharmacology, Ocean College, Zhejiang University, No. 1 Zheda Road, Zhoushan 316021, China
| | - Tingting Gao
- Institute of Marine Biology and Pharmacology, Ocean College, Zhejiang University, No. 1 Zheda Road, Zhoushan 316021, China
| | - Hangping Yao
- The First Affiliated Hospital, College of Medicine, Zhejiang University, No. 79 Qingchun Road, Hangzhou 310003, China
| | - Zhe Chen
- Key Laboratory of Digestive Pathophysiology of Zhejiang Province, The First Affiliated Hospital of Zhejiang Chinese Medicine, Zhejiang Chinese Medical University, No. 548, Binwen Road, Hangzhou 310053, China
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22
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Hufnagel DH, Wilson AJ, Saxon J, Blackwell TS, Watkins J, Khabele D, Crispens MA, Yull FE, Beeghly-Fadiel A. Expression of p52, a non-canonical NF-kappaB transcription factor, is associated with poor ovarian cancer prognosis. Biomark Res 2020; 8:45. [PMID: 32974032 PMCID: PMC7493985 DOI: 10.1186/s40364-020-00227-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Accepted: 09/07/2020] [Indexed: 01/06/2023] Open
Abstract
BACKGROUND The canonical and non-canonical nuclear factor-kappaB (NF-κB) signaling pathways have key roles in cancer, but studies have previously evaluated only the association of canonical transcription factors and ovarian cancer survival. Although a number of in vitro and in vivo studies have demonstrated mechanisms by which non-canonical NF-κB signaling potentially contributes to ovarian cancer progression, a prognostic association has yet to be shown in the clinical context. METHODS We assayed p65 and p52 (major components of the canonical and non-canonical NF-κB pathways) by immunohistochemistry in epithelial ovarian tumor samples; nuclear and cytoplasmic staining were semi-quantified by H-scores and dichotomized at median values. Associations of p65 and p52 with progression-free survival (PFS) and overall survival (OS) were quantified by Hazard Ratios (HR) from proportional-hazards regression. RESULTS Among 196 cases, median p52 and p65 H-scores were higher in high-grade serous cancers. Multivariable regression models indicated that higher p52 was associated with higher hazards of disease progression (cytoplasmic HR: 1.54; nuclear HR: 1.67) and death (cytoplasmic HR: 1.53; nuclear HR: 1.49), while higher nuclear p65 was associated with only a higher hazard of disease progression (HR: 1.40) in unadjusted models. When cytoplasmic and nuclear staining were combined, p52 remained significantly associated with increased hazards of disease progression (HR: 1.91, p = 0.004) and death (HR: 1.70, p = 0.021), even after adjustment for p65 and in analyses among only high-grade serous tumors. CONCLUSIONS This is the first study to demonstrate that p52, a major component of non-canonical NF-κB signaling, may be an independent prognostic factor for epithelial ovarian cancer, particularly high-grade serous ovarian cancer. Approaches to inhibit non-canonical NF-κB signaling should be explored as novel ovarian cancer therapies are needed.
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Affiliation(s)
| | - Andrew J. Wilson
- Department of Obstetrics and Gynecology, Division of Gynecologic Oncology, Vanderbilt University Medical Center, Nashville, TN 37232 USA
- Vanderbilt-Ingram Cancer Center, Nashville, TN 37232 USA
| | - Jamie Saxon
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232 USA
| | - Timothy S. Blackwell
- Vanderbilt-Ingram Cancer Center, Nashville, TN 37232 USA
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232 USA
| | - Jaclyn Watkins
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN 37232 USA
| | - Dineo Khabele
- Department of Obstetrics and Gynecology, Division of Gynecologic Oncology, Washington University School of Medicine, St. Louis, MO 63130 USA
| | - Marta A. Crispens
- Department of Obstetrics and Gynecology, Division of Gynecologic Oncology, Vanderbilt University Medical Center, Nashville, TN 37232 USA
- Vanderbilt-Ingram Cancer Center, Nashville, TN 37232 USA
| | - Fiona E. Yull
- Department of Obstetrics and Gynecology, Division of Gynecologic Oncology, Vanderbilt University Medical Center, Nashville, TN 37232 USA
- Vanderbilt-Ingram Cancer Center, Nashville, TN 37232 USA
- Department of Pharmacology, Vanderbilt University, Nashville, TN 37232 USA
| | - Alicia Beeghly-Fadiel
- Vanderbilt-Ingram Cancer Center, Nashville, TN 37232 USA
- Division of Epidemiology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37203 USA
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23
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Lv X, Yu H, Zhang Q, Huang Q, Hong X, Yu T, Lan H, Mei C, Zhang W, Luo H, Pang P, Shan H. SRXN1 stimulates hepatocellular carcinoma tumorigenesis and metastasis through modulating ROS/p65/BTG2 signalling. J Cell Mol Med 2020; 24:10714-10729. [PMID: 32746503 PMCID: PMC7521256 DOI: 10.1111/jcmm.15693] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [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: 07/06/2020] [Accepted: 07/09/2020] [Indexed: 12/21/2022] Open
Abstract
Sulfiredoxin 1 (SRXN1) is a pivotal regulator of the antioxidant response in eukaryotic cells. However, the role of SRXN1 in hepatocellular carcinoma (HCC) is far from clear. The present study aims to elucidate whether SRXN1 participates in tumorigenesis and metastasis of HCC and to determine the molecular mechanisms. We found that SRXN1 expression was up-regulated in HCC tissue samples and correlated with poor prognosis in HCC patients. We also observed that SRXN1 knockdown by transient siRNA transfection inhibited HCC cell proliferation, migration and invasion. Overexpression of SRXN1 increased HCC cell migration and invasion. B-cell translocation gene 2 (BTG2) was identified as a downstream target of SRXN1. Mechanistic studies revealed that SRXN1-depleted reactive oxygen species (ROS) modulated migration and invasion of HCC cells. In addition, the ROS/p65/BTG2 signalling hub was found to regulate the epithelial-mesenchymal transition (EMT), which mediates the pro-metastasis role of SRXN1 in HCC cells. In vivo experiments showed SRXN1 promotes HCC tumour growth and metastasis in mouse subcutaneous xenograft and metastasis models. Collectively, our results revealed a novel pro-tumorigenic and pro-metastatic function of SRXN1 in HCC. These findings demonstrate a rationale to exploit SRXN1 as a therapeutic target effectively preventing metastasis of HCC.
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MESH Headings
- Animals
- Carcinoma, Hepatocellular/enzymology
- Carcinoma, Hepatocellular/genetics
- Carcinoma, Hepatocellular/pathology
- Carcinoma, Hepatocellular/secondary
- Cell Line, Tumor
- Cell Movement
- Cell Transformation, Neoplastic/genetics
- Epithelial-Mesenchymal Transition/genetics
- Epithelial-Mesenchymal Transition/physiology
- Gene Expression Regulation, Neoplastic
- Humans
- Immediate-Early Proteins/physiology
- Liver Neoplasms/enzymology
- Liver Neoplasms/genetics
- Liver Neoplasms/pathology
- Lung Neoplasms/secondary
- Male
- Mice
- Mice, Inbred BALB C
- Mice, Nude
- Neoplasm Invasiveness
- Neoplasm Metastasis/physiopathology
- Neoplasm Proteins/antagonists & inhibitors
- Neoplasm Proteins/genetics
- Neoplasm Proteins/physiology
- Neoplasm Transplantation
- Oxidoreductases Acting on Sulfur Group Donors/antagonists & inhibitors
- Oxidoreductases Acting on Sulfur Group Donors/genetics
- Oxidoreductases Acting on Sulfur Group Donors/physiology
- RNA Interference
- RNA, Messenger/genetics
- RNA, Neoplasm/genetics
- RNA, Small Interfering/genetics
- RNA, Small Interfering/pharmacology
- Reactive Oxygen Species/metabolism
- Transcription Factors/metabolism
- Tumor Stem Cell Assay
- Tumor Suppressor Proteins/physiology
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Affiliation(s)
- Xiufang Lv
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular ImagingThe Fifth Affiliated HospitalSun Yat‐sen UniversityZhuhaiChina
| | - Hailing Yu
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular ImagingThe Fifth Affiliated HospitalSun Yat‐sen UniversityZhuhaiChina
| | - Qianqian Zhang
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular ImagingThe Fifth Affiliated HospitalSun Yat‐sen UniversityZhuhaiChina
| | - Quanyong Huang
- Department of UltrasoundThe Fifth Affiliated HospitalSun Yat‐sen UniversityZhuhaiChina
| | - Xiaopeng Hong
- Department of Hepatobiliary SurgeryThe Fifth Affiliated HospitalSun Yat‐sen UniversityZhuhaiChina
| | - Ting Yu
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular ImagingThe Fifth Affiliated HospitalSun Yat‐sen UniversityZhuhaiChina
| | - Huimin Lan
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular ImagingThe Fifth Affiliated HospitalSun Yat‐sen UniversityZhuhaiChina
| | - Chaoming Mei
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular ImagingThe Fifth Affiliated HospitalSun Yat‐sen UniversityZhuhaiChina
| | - Wenkai Zhang
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular ImagingThe Fifth Affiliated HospitalSun Yat‐sen UniversityZhuhaiChina
| | - Hui Luo
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular ImagingThe Fifth Affiliated HospitalSun Yat‐sen UniversityZhuhaiChina
| | - Pengfei Pang
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular ImagingThe Fifth Affiliated HospitalSun Yat‐sen UniversityZhuhaiChina
- Center for Interventional MedicineThe Fifth Affiliated HospitalSun Yat‐sen UniversityZhuhaiChina
| | - Hong Shan
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular ImagingThe Fifth Affiliated HospitalSun Yat‐sen UniversityZhuhaiChina
- Center for Interventional MedicineThe Fifth Affiliated HospitalSun Yat‐sen UniversityZhuhaiChina
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24
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Yan W, Jamal M, Tan SH, Song Y, Young D, Chen Y, Katta S, Ying K, Ravindranath L, Woodle T, Kohaar I, Cullen J, Kagan J, Srivastava S, Dobi A, McLeod DG, Rosner IL, Sesterhenn IA, Srinivasan A, Srivastava S, Petrovics G. Molecular profiling of radical prostatectomy tissue from patients with no sign of progression identifies ERG as the strongest independent predictor of recurrence. Oncotarget 2019; 10:6466-6483. [PMID: 31741711 PMCID: PMC6849651 DOI: 10.18632/oncotarget.27294] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Accepted: 10/19/2019] [Indexed: 01/16/2023] Open
Abstract
BACKGROUND As a major cause of morbidity and mortality among men, prostate cancer is a heterogenous disease, with a vast heterogeneity in the biology of the disease and in clinical outcome. While it often runs an indolent course, local progression or metastasis may eventually develop, even among patients considered "low risk" at diagnosis. Therefore, biomarkers that can discriminate aggressive from indolent disease at an early stage would greatly benefit patients. We hypothesized that tissue specimens from early stage prostate cancers may harbor predictive signatures for disease progression. METHODS We used a cohort of radical prostatectomy patients with longitudinal follow-up, who had tumors with low grade and stage that revealed no signs of future disease progression at surgery. During the follow-up period, some patients either remained indolent (non-BCR) or progressed to biochemical recurrence (BCR). Total RNA was extracted from tumor, and adjacent normal epithelium of formalin-fixed-paraffin-embedded (FFPE) specimens. Differential gene expression in tumors, and in tumor versus normal tissues between BCR and non-BCR patients were analyzed by NanoString using a customized CodeSet of 151 probes. RESULTS After controlling for false discovery rates, we identified a panel of eight genes (ERG, GGT1, HDAC1, KLK2, MYO6, PLA2G7, BICD1 and CACNAID) that distinguished BCR from non-BCR patients. We found a clear association of ERG expression with non-BCR, which was further corroborated by quantitative RT-PCR and immunohistochemistry assays. CONCLUSIONS Our results identified ERG as the strongest predictor for BCR and showed that potential prognostic prostate cancer biomarkers can be identified from FFPE tumor specimens.
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Affiliation(s)
- Wusheng Yan
- Henry Jackson Foundation for the Advancement of Military Medicine (HJF), Bethesda, MD, USA
- Center for Prostate Disease Research, Department of Surgery, Uniformed Services University of the Health Sciences and the Walter Reed National Military Medical Center, Bethesda, MD, USA
- These authors contributed equally to this work
| | - Muhammad Jamal
- Henry Jackson Foundation for the Advancement of Military Medicine (HJF), Bethesda, MD, USA
- Center for Prostate Disease Research, Department of Surgery, Uniformed Services University of the Health Sciences and the Walter Reed National Military Medical Center, Bethesda, MD, USA
- These authors contributed equally to this work
| | - Shyh-Han Tan
- Henry Jackson Foundation for the Advancement of Military Medicine (HJF), Bethesda, MD, USA
- Center for Prostate Disease Research, Department of Surgery, Uniformed Services University of the Health Sciences and the Walter Reed National Military Medical Center, Bethesda, MD, USA
- These authors contributed equally to this work
| | - Yingjie Song
- Henry Jackson Foundation for the Advancement of Military Medicine (HJF), Bethesda, MD, USA
- Center for Prostate Disease Research, Department of Surgery, Uniformed Services University of the Health Sciences and the Walter Reed National Military Medical Center, Bethesda, MD, USA
| | - Denise Young
- Henry Jackson Foundation for the Advancement of Military Medicine (HJF), Bethesda, MD, USA
- Center for Prostate Disease Research, Department of Surgery, Uniformed Services University of the Health Sciences and the Walter Reed National Military Medical Center, Bethesda, MD, USA
| | - Yongmei Chen
- Henry Jackson Foundation for the Advancement of Military Medicine (HJF), Bethesda, MD, USA
- Center for Prostate Disease Research, Department of Surgery, Uniformed Services University of the Health Sciences and the Walter Reed National Military Medical Center, Bethesda, MD, USA
| | - Shilpa Katta
- Henry Jackson Foundation for the Advancement of Military Medicine (HJF), Bethesda, MD, USA
- Center for Prostate Disease Research, Department of Surgery, Uniformed Services University of the Health Sciences and the Walter Reed National Military Medical Center, Bethesda, MD, USA
| | - Kai Ying
- Henry Jackson Foundation for the Advancement of Military Medicine (HJF), Bethesda, MD, USA
- Center for Prostate Disease Research, Department of Surgery, Uniformed Services University of the Health Sciences and the Walter Reed National Military Medical Center, Bethesda, MD, USA
| | - Lakshmi Ravindranath
- Henry Jackson Foundation for the Advancement of Military Medicine (HJF), Bethesda, MD, USA
- Center for Prostate Disease Research, Department of Surgery, Uniformed Services University of the Health Sciences and the Walter Reed National Military Medical Center, Bethesda, MD, USA
| | - Tarah Woodle
- Center for Prostate Disease Research, Department of Surgery, Uniformed Services University of the Health Sciences and the Walter Reed National Military Medical Center, Bethesda, MD, USA
| | - Indu Kohaar
- Henry Jackson Foundation for the Advancement of Military Medicine (HJF), Bethesda, MD, USA
- Center for Prostate Disease Research, Department of Surgery, Uniformed Services University of the Health Sciences and the Walter Reed National Military Medical Center, Bethesda, MD, USA
| | - Jennifer Cullen
- Henry Jackson Foundation for the Advancement of Military Medicine (HJF), Bethesda, MD, USA
- Center for Prostate Disease Research, Department of Surgery, Uniformed Services University of the Health Sciences and the Walter Reed National Military Medical Center, Bethesda, MD, USA
- John P. Murtha Cancer Center, Walter Reed National Military Medical Center, Bethesda, MD, USA
| | - Jacob Kagan
- Division of Cancer Prevention, National Cancer Institute, NIH, Bethesda, MD, USA
| | - Sudhir Srivastava
- Division of Cancer Prevention, National Cancer Institute, NIH, Bethesda, MD, USA
| | - Albert Dobi
- Henry Jackson Foundation for the Advancement of Military Medicine (HJF), Bethesda, MD, USA
- Center for Prostate Disease Research, Department of Surgery, Uniformed Services University of the Health Sciences and the Walter Reed National Military Medical Center, Bethesda, MD, USA
- John P. Murtha Cancer Center, Walter Reed National Military Medical Center, Bethesda, MD, USA
| | - David G. McLeod
- Henry Jackson Foundation for the Advancement of Military Medicine (HJF), Bethesda, MD, USA
- Center for Prostate Disease Research, Department of Surgery, Uniformed Services University of the Health Sciences and the Walter Reed National Military Medical Center, Bethesda, MD, USA
- John P. Murtha Cancer Center, Walter Reed National Military Medical Center, Bethesda, MD, USA
| | - Inger L. Rosner
- Henry Jackson Foundation for the Advancement of Military Medicine (HJF), Bethesda, MD, USA
- Center for Prostate Disease Research, Department of Surgery, Uniformed Services University of the Health Sciences and the Walter Reed National Military Medical Center, Bethesda, MD, USA
- John P. Murtha Cancer Center, Walter Reed National Military Medical Center, Bethesda, MD, USA
| | | | - Alagarsamy Srinivasan
- Henry Jackson Foundation for the Advancement of Military Medicine (HJF), Bethesda, MD, USA
- Center for Prostate Disease Research, Department of Surgery, Uniformed Services University of the Health Sciences and the Walter Reed National Military Medical Center, Bethesda, MD, USA
| | - Shiv Srivastava
- Henry Jackson Foundation for the Advancement of Military Medicine (HJF), Bethesda, MD, USA
- Center for Prostate Disease Research, Department of Surgery, Uniformed Services University of the Health Sciences and the Walter Reed National Military Medical Center, Bethesda, MD, USA
- John P. Murtha Cancer Center, Walter Reed National Military Medical Center, Bethesda, MD, USA
| | - Gyorgy Petrovics
- Henry Jackson Foundation for the Advancement of Military Medicine (HJF), Bethesda, MD, USA
- Center for Prostate Disease Research, Department of Surgery, Uniformed Services University of the Health Sciences and the Walter Reed National Military Medical Center, Bethesda, MD, USA
- John P. Murtha Cancer Center, Walter Reed National Military Medical Center, Bethesda, MD, USA
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