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Guil-Luna S, Rivas-Crespo A, Navarrete-Sirvent C, Mantrana A, Pera A, Mena-Osuna R, Toledano-Fonseca M, García-Ortíz MV, Villar C, Sánchez-Montero MT, Krueger J, Medina-Fernández FJ, De La Haba-Rodríguez J, Gómez-España A, Aranda E, Rudd CE, Rodríguez-Ariza A. Clinical significance of glycogen synthase kinase 3 (GSK-3) expression and tumor budding grade in colorectal cancer: Implications for targeted therapy. Biomed Pharmacother 2023; 167:115592. [PMID: 37778272 DOI: 10.1016/j.biopha.2023.115592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 09/14/2023] [Accepted: 09/25/2023] [Indexed: 10/03/2023] Open
Abstract
INTRODUCTION Glycogen synthase kinase 3 (GSK-3) has been proposed as a novel cancer target due to its regulating role in both tumor and immune cells. However, the connection between GSK-3 and immunoevasive contexture, including tumor budding (TB) has not been previously examined. METHODS we investigated the expression levels of total GSK-3 as well as its isoforms (GSK-3β and GSK-3α) and examined their potential correlation with TB grade and the programmed cell death-ligand 1 (PD-L1) in colorectal cancer (CRC) tumor samples. Additionally, we compared the efficacy of GSK-3-inhibition with PD-1/PD-L1 blockade in humanized patient-derived (PDXs) xenografts models of high-grade TB CRC. RESULTS we show that high-grade (BD3) TB CRC is associated with elevated expression levels of total GSK-3, specifically the GSK-3β isoform, along with increased expression of PD-L1 in tumor cells. Moreover, we define an improved risk stratification of CRC patients based on the presence of GSK-3+/PD-L1+/BD3 tumors, which are associated with a worse prognosis. Significantly, in contrast to the PD-L1/PD-1 blockade approach, the inhibition GSK-3 demonstrated a remarkable enhancement in the antitumor response. This was achieved through the reduction of tumor buds via necrosis and apoptosis pathways, along with a notable increase of activated tumor-infiltrating CD8+ T cells, NK cells, and CD4- CD8- T cells. CONCLUSIONS our study provides compelling evidence for the clinical significance of GSK-3 expression and TB grade in risk stratification of CRC patients. Moreover, our findings strongly support GSK-3 inhibition as an effective therapy specifically targeting high-grade TB in CRC.
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Affiliation(s)
- Silvia Guil-Luna
- Maimonides Biomedical Research Institute of Córdoba (IMIBIC), Córdoba, Spain; Cancer Network Biomedical Research Centre (CIBERONC), Madrid, Spain; Andalusia-ROCHE Network Mixed Alliance in Precision Medical Oncology, Spain; Department of Comparative Pathology, Faculty of Veterinary Medicine, University of Córdoba, Córdoba, Spain..
| | - Aurora Rivas-Crespo
- Maimonides Biomedical Research Institute of Córdoba (IMIBIC), Córdoba, Spain; Cancer Network Biomedical Research Centre (CIBERONC), Madrid, Spain; Andalusia-ROCHE Network Mixed Alliance in Precision Medical Oncology, Spain.
| | - Carmen Navarrete-Sirvent
- Maimonides Biomedical Research Institute of Córdoba (IMIBIC), Córdoba, Spain; Cancer Network Biomedical Research Centre (CIBERONC), Madrid, Spain; Andalusia-ROCHE Network Mixed Alliance in Precision Medical Oncology, Spain.
| | - Ana Mantrana
- Maimonides Biomedical Research Institute of Córdoba (IMIBIC), Córdoba, Spain; Cancer Network Biomedical Research Centre (CIBERONC), Madrid, Spain; Andalusia-ROCHE Network Mixed Alliance in Precision Medical Oncology, Spain.
| | - Alejandra Pera
- Maimonides Biomedical Research Institute of Córdoba (IMIBIC), Córdoba, Spain; Department of Cell Biology, Physiology and Immunology, University of Córdoba, Spain.
| | - Rafael Mena-Osuna
- Maimonides Biomedical Research Institute of Córdoba (IMIBIC), Córdoba, Spain; Cancer Network Biomedical Research Centre (CIBERONC), Madrid, Spain; Andalusia-ROCHE Network Mixed Alliance in Precision Medical Oncology, Spain.
| | - Marta Toledano-Fonseca
- Maimonides Biomedical Research Institute of Córdoba (IMIBIC), Córdoba, Spain; Cancer Network Biomedical Research Centre (CIBERONC), Madrid, Spain; Andalusia-ROCHE Network Mixed Alliance in Precision Medical Oncology, Spain.
| | - María Victoria García-Ortíz
- Maimonides Biomedical Research Institute of Córdoba (IMIBIC), Córdoba, Spain; Cancer Network Biomedical Research Centre (CIBERONC), Madrid, Spain; Andalusia-ROCHE Network Mixed Alliance in Precision Medical Oncology, Spain.
| | - Carlos Villar
- Pathological Anatomy Department, Reina Sofía University Hospital, Córdoba, Spain.
| | - Maria Teresa Sánchez-Montero
- Maimonides Biomedical Research Institute of Córdoba (IMIBIC), Córdoba, Spain; Cancer Network Biomedical Research Centre (CIBERONC), Madrid, Spain; Andalusia-ROCHE Network Mixed Alliance in Precision Medical Oncology, Spain.
| | - Janna Krueger
- Division of Immunology-Oncology Research Center, Maisonneuve-Rosemont Hospital, Montreal, QC, Canada.
| | | | - Juan De La Haba-Rodríguez
- Maimonides Biomedical Research Institute of Córdoba (IMIBIC), Córdoba, Spain; Cancer Network Biomedical Research Centre (CIBERONC), Madrid, Spain; Andalusia-ROCHE Network Mixed Alliance in Precision Medical Oncology, Spain; Department of Medicine, Faculty of Medicine, University of Córdoba, Córdoba, Spain; Medical Oncology Department, Reina Sofía University Hospital, Córdoba, Spain.
| | - Auxiliadora Gómez-España
- Maimonides Biomedical Research Institute of Córdoba (IMIBIC), Córdoba, Spain; Andalusia-ROCHE Network Mixed Alliance in Precision Medical Oncology, Spain; Department of Medicine, Faculty of Medicine, University of Córdoba, Córdoba, Spain; Medical Oncology Department, Reina Sofía University Hospital, Córdoba, Spain.
| | - Enrique Aranda
- Maimonides Biomedical Research Institute of Córdoba (IMIBIC), Córdoba, Spain; Cancer Network Biomedical Research Centre (CIBERONC), Madrid, Spain; Andalusia-ROCHE Network Mixed Alliance in Precision Medical Oncology, Spain; Department of Medicine, Faculty of Medicine, University of Córdoba, Córdoba, Spain; Medical Oncology Department, Reina Sofía University Hospital, Córdoba, Spain.
| | - Christopher E Rudd
- General and Digestive Surgery Department, Reina Sofía University Hospital, Córdoba, Spain; Faculty of Medicine, Universite de Montreal, Montreal, Canada.
| | - Antonio Rodríguez-Ariza
- Maimonides Biomedical Research Institute of Córdoba (IMIBIC), Córdoba, Spain; Cancer Network Biomedical Research Centre (CIBERONC), Madrid, Spain; Andalusia-ROCHE Network Mixed Alliance in Precision Medical Oncology, Spain; Medical Oncology Department, Reina Sofía University Hospital, Córdoba, Spain.
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Sunkara RR, Mehta D, Sarate RM, Waghmare SK. BMP-AKT-GSK3β signalling restores hair follicle stem cells decrease associated with loss of Sfrp1. Stem Cells 2022; 40:802-817. [PMID: 35689817 DOI: 10.1093/stmcls/sxac041] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Accepted: 04/05/2022] [Indexed: 11/15/2022]
Abstract
Wnt signaling plays a pivotal role in regulating activation, proliferation, stem cell renewal and differentiation of hair follicle stem cells (HFSCs). Secreted frizzled related protein-1 (Sfrp1), a Wnt antagonist is up regulated in the HFSCs; however, its role in the HFSCs regulation is still obscure. Here, we show that Sfrp1 loss showed a depletion of HFSCs, enhanced HFSC proliferation and faster hair follicle cycle at PD21 to PD28, HFSC markers such as Lgr5 and Axin2 were decreased in both the Sfrp1 +/- and Sfrp1 -/- HFSCs. In addition, the second hair follicle cycle was also faster as compared to WT. Importantly, Sfrp1 -/- showed a restoration of HFSC by 2 nd telogen (PD49), while Sfrp1+/- did not show restoration with still having a decreased HFSC. Infact, restoration of HFSCs was due to a pronounced down-regulation of β-CATENIN activity mediated through a cross-talk of BMP-AKT-GSK3β signalling in Sfrp1-/- as compared to Sfrp1+/-, where down regulation was less pronounced. In cultured keratinocytes, Sfrp1 loss resulted in enhanced proliferation and clonogenicity, which were reversed by treating with either BMPR1A or GSK3β inhibitor thereby confirming BMP-AKT-GSK3β signaling involved in β-CATENIN regulation in both the Sfrp1 +/- and Sfrp1 -/- mice. Our study reveals a novel function of Sfrp1 by unravelling an in vivo molecular mechanism that regulate the HFSCs pool mediated through a hitherto unknown cross-talk of BMP-AKT-GSK3β signalling that maintain stem cell pool balance, which in turn maintain skin tissue homeostasis.
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Affiliation(s)
- Raghava R Sunkara
- Stem Cell Biology Group, Waghmare Lab, Cancer Research Institute, Advanced Centre for Treatment Research and Education in Cancer (ACTREC), Tata Memorial Centre, Kharghar, Navi Mumbai, Maharashtra, India.,Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai, India
| | - Darshan Mehta
- Stem Cell Biology Group, Waghmare Lab, Cancer Research Institute, Advanced Centre for Treatment Research and Education in Cancer (ACTREC), Tata Memorial Centre, Kharghar, Navi Mumbai, Maharashtra, India.,Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai, India
| | - Rahul M Sarate
- Stem Cell Biology Group, Waghmare Lab, Cancer Research Institute, Advanced Centre for Treatment Research and Education in Cancer (ACTREC), Tata Memorial Centre, Kharghar, Navi Mumbai, Maharashtra, India.,Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai, India
| | - Sanjeev K Waghmare
- Stem Cell Biology Group, Waghmare Lab, Cancer Research Institute, Advanced Centre for Treatment Research and Education in Cancer (ACTREC), Tata Memorial Centre, Kharghar, Navi Mumbai, Maharashtra, India.,Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai, India
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Alwhaibi A, Parvathagiri V, Verma A, Artham S, Adil MS, Somanath PR. Regulation of Let-7a-5p and miR-199a-5p Expression by Akt1 Modulates Prostate Cancer Epithelial-to-Mesenchymal Transition via the Transforming Growth Factor-β Pathway. Cancers (Basel) 2022; 14:cancers14071625. [PMID: 35406397 PMCID: PMC8996869 DOI: 10.3390/cancers14071625] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 03/07/2022] [Accepted: 03/21/2022] [Indexed: 02/01/2023] Open
Abstract
Simple Summary The molecular mechanisms regulating the switch from the growth of tumor cells to invasive phenotype for metastasis is largely unknown. Molecules such as Akt1 and TGFβ have been demonstrated to play reciprocal roles in the early and advanced stages of cancers, and epithelial-to-mesenchymal transition has been identified as a common link in the process. Advancing our knowledge on the direct association between these two pathways and how their effects are reconciled in the advanced stages of cancers such as prostate cancer will have therapeutic benefits. Identifying the role of microRNAs in the process will also benefit the scientific community. Abstract Akt1 suppression in advanced cancers has been indicated to promote metastasis. Our understanding of how Akt1 orchestrates this is incomplete. Using the NanoString®-based miRNA and mRNA profiling of PC3 and DU145 cells, and subsequent data analysis using the DIANA-mirPath, dbEMT, nCounter, and Ingenuity® databases, we identified the miRNAs and associated genes responsible for Akt1-mediated prostate cancer (PCa) epithelial-to-mesenchymal transition (EMT). Akt1 loss in PC3 and DU145 cells primarily induced changes in the miRNAs and mRNAs regulating EMT genes. These include increased miR-199a-5p and decreased let-7a-5p expression associated with increased TGFβ-R1 expression. Treatment with locked nucleic acid (LNA) miR-199a-5p inhibitor and/or let-7a-5p mimic induced expression changes in EMT genes correlating to their anticipated effects on PC3 and DU145 cell motility, invasion, and TGFβ-R1 expression. A correlation between increased miR-199a-5p and TGFβ-R1 expression with reduced let-7a-5p was also observed in high Gleason score PCa patients in the cBioportal database analysis. Collectively, our studies show the effect of Akt1 suppression in advanced PCa on EMT modulating miRNA and mRNA expression changes and highlight the potential benefits of miR-199a-5p and let-7a-5p in therapy and/or early screening of mPCa.
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Affiliation(s)
- Abdulrahman Alwhaibi
- Clinical and Experimental Therapeutics, University of Georgia, Augusta, GA 30912, USA; (A.A.); (V.P.); (A.V.); (S.A.); (M.S.A.)
- Charlie Norwood VA Medical Center, Augusta, GA 30912, USA
- Clinical Pharmacy Department, College of Pharmacy at King Saud University, Riyadh 11451, Saudi Arabia
| | - Varun Parvathagiri
- Clinical and Experimental Therapeutics, University of Georgia, Augusta, GA 30912, USA; (A.A.); (V.P.); (A.V.); (S.A.); (M.S.A.)
- Charlie Norwood VA Medical Center, Augusta, GA 30912, USA
| | - Arti Verma
- Clinical and Experimental Therapeutics, University of Georgia, Augusta, GA 30912, USA; (A.A.); (V.P.); (A.V.); (S.A.); (M.S.A.)
- Charlie Norwood VA Medical Center, Augusta, GA 30912, USA
| | - Sandeep Artham
- Clinical and Experimental Therapeutics, University of Georgia, Augusta, GA 30912, USA; (A.A.); (V.P.); (A.V.); (S.A.); (M.S.A.)
- Charlie Norwood VA Medical Center, Augusta, GA 30912, USA
| | - Mir S. Adil
- Clinical and Experimental Therapeutics, University of Georgia, Augusta, GA 30912, USA; (A.A.); (V.P.); (A.V.); (S.A.); (M.S.A.)
- Charlie Norwood VA Medical Center, Augusta, GA 30912, USA
| | - Payaningal R. Somanath
- Clinical and Experimental Therapeutics, University of Georgia, Augusta, GA 30912, USA; (A.A.); (V.P.); (A.V.); (S.A.); (M.S.A.)
- Charlie Norwood VA Medical Center, Augusta, GA 30912, USA
- Vascular Biology Center, Augusta University, Augusta, GA 30912, USA
- Georgia Cancer Center, Augusta University, Augusta, GA 30912, USA
- Correspondence:
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Yang M, Liu H, Qiu GP, Gao F. Silencing Akt1 enhances the resistance of prostate cancer cells to starvation and inhibits starvation-induced lung metastasis through epithelial-mesenchymal transition in prostate cancer. Med Oncol 2021; 39:8. [PMID: 34761338 DOI: 10.1007/s12032-021-01600-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2021] [Accepted: 10/21/2021] [Indexed: 11/28/2022]
Abstract
Nutritional starvation (NST) is the basis of tumor anti-angiogenesis and metabolic therapy strategy. Silencing Akt1 inhibits prostate cancer (PCa) cells growing; slow-growing cells tend to consume less nutrition. It is suggested that Akt1-silenced cancer cells will have a more substantial tolerance to NST. Clarify this critical question is vital for tumor treatment strategies based on Akt1 and NST. The Akt1 gene of PC3 and DU145 cells was silenced by lent-virus. NST model was established by serum stripping. Cell viability was detected by MTT assay and cell counting method. Apoptosis was detected by TUNEL and flow cytometry, and cell invasion was determined by transwells and ECIS. The markers of epithelial-mesenchymal transition (EMT) were detected by western blotting. PCa lung metastasis model was established by tail vein injection and quantified by Indian ink and GFP fluorescence. Silencing Akt1 slowed down the decrease of cell number and increase of apoptosis caused by NST. Silencing Akt1 with NST exposure in PCa cells could down-regulate epithelial markers (E-cadherin, claudin-5, and ZO-1) and up-regulate mesenchymal markers N-cadherin and EMT regulators Snail. Although silencing Akt1 enhanced the invasion of PCa cells induced by NST in vitro, silencing Akt1 inhibited the PCa lung metastasis induced by NST in vivo. Silencing Akt1 gene enhances the resistance of PCa cells to NST. The invasion results in vitro were inconsistent with those metastases in vivo, which may be related to a combination of NST with silencing Akt1 to maintain the mesenchymal state of PCa cells through EMT.
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Affiliation(s)
- Mei Yang
- Department of Anatomy, Institute of Neuroscience, Chongqing Medical University, Chongqing, People's Republic of China
| | - Hui Liu
- Department of Anatomy, Institute of Neuroscience, Chongqing Medical University, Chongqing, People's Republic of China
| | - Guo-Ping Qiu
- Department of Anatomy, Institute of Neuroscience, Chongqing Medical University, Chongqing, People's Republic of China
| | - Fei Gao
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, No.1 of YouYi RD, YuZong District, Chongqing, People's Republic of China.
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Makwana V, Rudrawar S, Anoopkumar-Dukie S. Signalling transduction of O-GlcNAcylation and PI3K/AKT/mTOR-axis in prostate cancer. Biochim Biophys Acta Mol Basis Dis 2021; 1867:166129. [PMID: 33744394 DOI: 10.1016/j.bbadis.2021.166129] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 02/26/2021] [Accepted: 03/14/2021] [Indexed: 12/23/2022]
Abstract
Hexosamine biosynthetic (HBP) and PI3K/AKT/mTOR pathways are found to predominate the proliferation and survival of prostate cancer cells. Both these pathways have their own specific intermediates to propagate the secondary signals in down-stream cascades and besides having their own structured network, also have shared interconnecting branches. These interconnections are either competitive or co-operative in nature depending on the microenvironmental conditions. Specifically, in prostate cancer HBP and mTOR pathways increases the expression and protein level of androgen receptor in order to support cancer cell proliferation, advancement and metastasis. Pharmacological inhibition of a single pathway is therefore insufficient to stop disease progression as the cancer cells manage to alter the signalling channel. This is one of the primary reasons for the therapeutic failure in prostate cancer and emergence of chemoresistance. Inhibition of these multiple pathways at their common junctures might prove to be of benefit in men suffering from an advanced disease state. Hence, a thorough understanding of these cellular intersecting points and their significance with respect to signal transduction mechanisms might assist in the rational designing of combinations for effective management of prostate cancer.
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Affiliation(s)
- Vivek Makwana
- School of Pharmacy and Pharmacology, Griffith University, Gold Coast, QLD 4222, Australia
| | - Santosh Rudrawar
- School of Pharmacy and Pharmacology, Griffith University, Gold Coast, QLD 4222, Australia; Menzies Health Institute Queensland, Griffith University, Gold Coast, QLD 4222, Australia; Quality Use of Medicines Network, Griffith University, Gold Coast, QLD 4222, Australia.
| | - Shailendra Anoopkumar-Dukie
- School of Pharmacy and Pharmacology, Griffith University, Gold Coast, QLD 4222, Australia; Menzies Health Institute Queensland, Griffith University, Gold Coast, QLD 4222, Australia; Quality Use of Medicines Network, Griffith University, Gold Coast, QLD 4222, Australia.
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Kadry RW, Adil MS, Newsome AS, Somanath PR. Cisatracurium attenuates LPS-induced modulation of MMP3 and junctional protein expression in human microvascular endothelial cells. Biosci Trends 2021; 15:50-54. [PMID: 33627570 DOI: 10.5582/bst.2020.03399] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Acute respiratory distress syndrome (ARDS) is a life-threatening form of acute lung injury (ALI) associated with hypoxemic lung damage and inflammation. Matrix metalloproteinase protein-3 (MMP3 or Stromelysin-1) is known to promote vascular injury in ALI/ARDS. Cisatracurium, a nicotinic neuromuscular blocker, is used in ARDS patients to decrease mechanical ventilator dyssynchrony, increase oxygenation, and improve mortality. However, the magnitude and the underlying mechanisms of these potential benefits of cisatracurium remains unclear. We investigated the effect of cisatracurium on lipopolysaccharide-induced MMP3 expression in human microvascular endothelial cells. In our results, cisatracurium treatment significantly decreased LPS-induced MMP3 expression and increased expression of cell junction proteins such as vascular endothelial cadherin (VE-cadherin) and claudin-5.
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Affiliation(s)
- Rana W Kadry
- Clinical and Experimental Therapeutics, University of Georgia, and Charlie Norwood VA Medical Center, Augusta, GA, USA
| | - Mir S Adil
- Clinical and Experimental Therapeutics, University of Georgia, and Charlie Norwood VA Medical Center, Augusta, GA, USA
| | - Andrea Sikora Newsome
- Clinical and Experimental Therapeutics, University of Georgia, and Charlie Norwood VA Medical Center, Augusta, GA, USA
| | - Payaningal R Somanath
- Clinical and Experimental Therapeutics, University of Georgia, and Charlie Norwood VA Medical Center, Augusta, GA, USA
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GSK3α: An Important Paralog in Neurodegenerative Disorders and Cancer. Biomolecules 2020; 10:biom10121683. [PMID: 33339170 PMCID: PMC7765659 DOI: 10.3390/biom10121683] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 11/29/2020] [Accepted: 11/30/2020] [Indexed: 12/18/2022] Open
Abstract
The biological activity of the enzyme glycogen synthase kinase-3 (GSK3) is fulfilled by two paralogs named GSK3α and GSK3β, which possess both redundancy and specific functions. The upregulated activity of these proteins is linked to the development of disorders such as neurodegenerative disorders (ND) and cancer. Although various chemical inhibitors of these enzymes restore the brain functions in models of ND such as Alzheimer’s disease (AD), and reduce the proliferation and survival of cancer cells, the particular contribution of each paralog to these effects remains unclear as these molecules downregulate the activity of both paralogs with a similar efficacy. Moreover, given that GSK3 paralogs phosphorylate more than 100 substrates, the simultaneous inhibition of both enzymes has detrimental effects during long-term inhibition. Although the GSK3β kinase function has usually been taken as the global GSK3 activity, in the last few years, a growing interest in the study of GSK3α has emerged because several studies have recognized it as the main GSK3 paralog involved in a variety of diseases. This review summarizes the current biological evidence on the role of GSK3α in AD and various types of cancer. We also provide a discussion on some strategies that may lead to the design of the paralog-specific inhibition of GSK3α.
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Adil MS, Narayanan SP, Somanath PR. Cell-cell junctions: structure and regulation in physiology and pathology. Tissue Barriers 2020; 9:1848212. [PMID: 33300427 DOI: 10.1080/21688370.2020.1848212] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Epithelial and endothelial cell-cell contacts are established and maintained by several intercellular junctional complexes. These structurally and biochemically differentiated regions on the plasma membrane primarily include tight junctions (TJs), and anchoring junctions. While the adherens junctions (AJs) provide essential adhesive and mechanical properties, TJs hold the cells together and form a near leak-proof intercellular seal by the fusion of adjacent cell membranes. AJs and TJs play essential roles in vascular permeability. Considering their involvement in several key cellular functions such as barrier formation, proliferation, migration, survival, and differentiation, further research is warranted on the composition and signaling pathways regulating cell-cell junctions to develop novel therapeutics for diseases such as organ injuries. The current review article presents our current state of knowledge on various cell-cell junctions, their molecular composition, and mechanisms regulating their expression and function in endothelial and epithelial cells.
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Affiliation(s)
- Mir S Adil
- Clinical and Experimental Therapeutics, University of Georgia and Charlie Norwood VA Medical Center , Augusta, GA, USA
| | - S Priya Narayanan
- Clinical and Experimental Therapeutics, University of Georgia and Charlie Norwood VA Medical Center , Augusta, GA, USA
| | - Payaningal R Somanath
- Clinical and Experimental Therapeutics, University of Georgia and Charlie Norwood VA Medical Center , Augusta, GA, USA
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9
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Moradi S, Mokhtari-Dizaji M, Ghassemi F, Sheibani S, Asadi Amoli F. Increasing the efficiency of the retinoblastoma brachytherapy protocol with ultrasonic hyperthermia and gold nanoparticles: a rabbit model. Int J Radiat Biol 2020; 96:1614-1627. [PMID: 33074061 DOI: 10.1080/09553002.2020.1838657] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
PURPOSE This study purposed to evaluate the efficacy of brachytherapy with the modality of ultrasonic hyperthermia in the presence of gold nanoparticles (GNPs) on an ocular retinoblastoma tumor in an animal model of the rabbit. MATERIALS AND METHODS A retinoblastoma tumor was induced by the injection of the human cell line of Y79 in rabbit eyes (n = 41). After two weeks, tumor size reached a diameter of about 5-7 mm. Seven groups were involved: control, GNPs injection, hyperthermia, hyperthermia with GNPs injection, brachytherapy with I-125, a combination of hyperthermia and brachytherapy, and a combination of brachytherapy, hyperthermia and, GNPs. The tumor area was measured using B-mode ultrasound images on the zero-day and at the end of the third week. The groups were evaluated for a histopathological study of tumor necrosis. RESULTS There was a significant difference between the relative area changes of tumor in the combination group with the other study groups (p < .05). The results of histopathologic studies confirmed the necrosis of living retinoblastoma cells. CONCLUSION Combination therapy of brachytherapy and hyperthermia with GNPs reduces the relative size of the tumor. This method increases the necrosis percentage of retinoblastoma and significantly reduces the retinoblastoma mass in the rabbit eyes.
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Affiliation(s)
- Somayeh Moradi
- Faculty of Medical Sciences, Department of Medical Physics, Tarbiat Modares University, Tehran, Iran
| | - Manijhe Mokhtari-Dizaji
- Faculty of Medical Sciences, Department of Medical Physics, Tarbiat Modares University, Tehran, Iran
| | - Fariba Ghassemi
- Eye Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Shahab Sheibani
- Radiation Application Research School, Nuclear Science and Technology Research Institute, Tehran, Iran
| | - Fahimeh Asadi Amoli
- Department of Pathology, Eye Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran
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Nalairndran G, Hassan Abdul Razack A, Mai C, Fei‐Lei Chung F, Chan K, Hii L, Lim W, Chung I, Leong C. Phosphoinositide-dependent Kinase-1 (PDPK1) regulates serum/glucocorticoid-regulated Kinase 3 (SGK3) for prostate cancer cell survival. J Cell Mol Med 2020; 24:12188-12198. [PMID: 32926495 PMCID: PMC7578863 DOI: 10.1111/jcmm.15876] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 08/19/2020] [Accepted: 08/27/2020] [Indexed: 02/05/2023] Open
Abstract
Prostate cancer (PCa) is the most common malignancy and is the second leading cause of cancer among men globally. Using a kinome-wide lentiviral small-hairpin RNA (shRNA) library screen, we identified phosphoinositide-dependent kinase-1 (PDPK1) as a potential mediator of cell survival in PCa cells. We showed that knock-down of endogenous human PDPK1 induced significant tumour-specific cell death in PCa cells (DU145 and PC3) but not in the normal prostate epithelial cells (RWPE-1). Further analyses revealed that PDPK1 mediates cancer cell survival predominantly via activation of serum/glucocorticoid-regulated kinase 3 (SGK3). Knock-down of endogenous PDPK1 in DU145 and PC3 cells significantly reduced SGK3 phosphorylation while ectopic expression of a constitutively active SGK3 completely abrogated the apoptosis induced by PDPK1. In contrast, no such effect was observed in SGK1 and AKT phosphorylation following PDPK1 knock-down. Importantly, PDPK1 inhibitors (GSK2334470 and BX-795) significantly reduced tumour-specific cell growth and synergized docetaxel sensitivity in PCa cells. In summary, our results demonstrated that PDPK1 mediates PCa cells' survival through SGK3 signalling and suggest that inactivation of this PDPK1-SGK3 axis may potentially serve as a novel therapeutic intervention for future treatment of PCa.
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Affiliation(s)
- Geetha Nalairndran
- Department of PharmacologyFaculty of MedicineUniversity of MalayaKuala LumpurMalaysia
| | | | - Chun‐Wai Mai
- Center for Cancer and Stem Cell ResearchInstitute for ResearchDevelopment and Innovation (IRDI)International Medical UniversityKuala LumpurMalaysia
- School of PharmacyInternational Medical UniversityKuala LumpurMalaysia
| | - Felicia Fei‐Lei Chung
- Mechanisms of Carcinogenesis Section (MCA)Epigenetics Group (EGE)International Agency for Research on Cancer World Health OrganizationLyonFrance
| | - Kok‐Keong Chan
- School of MedicineInternational Medical UniversityKuala LumpurMalaysia
| | - Ling‐Wei Hii
- Center for Cancer and Stem Cell ResearchInstitute for ResearchDevelopment and Innovation (IRDI)International Medical UniversityKuala LumpurMalaysia
- School of PharmacyInternational Medical UniversityKuala LumpurMalaysia
- School of Postgraduate StudiesInternational Medical UniversityKuala LumpurMalaysia
| | - Wei‐Meng Lim
- Center for Cancer and Stem Cell ResearchInstitute for ResearchDevelopment and Innovation (IRDI)International Medical UniversityKuala LumpurMalaysia
- School of PharmacyInternational Medical UniversityKuala LumpurMalaysia
- School of Postgraduate StudiesInternational Medical UniversityKuala LumpurMalaysia
| | - Ivy Chung
- Department of PharmacologyFaculty of MedicineUniversity of MalayaKuala LumpurMalaysia
- Faculty of MedicineUniversity of Malaya Cancer Research InstituteUniversity of MalayaKuala LumpurMalaysia
| | - Chee‐Onn Leong
- Center for Cancer and Stem Cell ResearchInstitute for ResearchDevelopment and Innovation (IRDI)International Medical UniversityKuala LumpurMalaysia
- School of PharmacyInternational Medical UniversityKuala LumpurMalaysia
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11
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Li X, Wang F, Ren M, Du M, Zhou J. The effects of c-Src kinase on EMT signaling pathway in human lens epithelial cells associated with lens diseases. BMC Ophthalmol 2019; 19:219. [PMID: 31703690 PMCID: PMC6842207 DOI: 10.1186/s12886-019-1229-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Accepted: 10/28/2019] [Indexed: 12/18/2022] Open
Abstract
Background The signaling pathway of epithelial to mesenchymal transition (EMT) is regulated by c-Src kinase in many cells. The purpose of this study was to investigate the effects of c-Src kinase on EMT of human lens epithelial cells in vivo stimulated by different factors. Methods Human lens epithelial cells, HLE-B3, were exposed to either an inflammatory factor, specifically IL-1α, IL-6, TNF-α or IL-1β, at 10 ng/mL or high glucose (35.5 mM) for 30 mins. Activity of c-Src kinase was evaluated by the expression of p-Src418 with western blot assay. To investigate the effects of activation of c-Src on EMT, HLE-B3 cells were transfected with pCDNA3.1-SrcY530F to upregulate activity of c-Src kinase, and pSlience4.1-ShSrc to knock it down. The expressions of c-Src kinase and molecular markers of EMT such as E-cadherin, ZO-1, α-SMA, and Vimentin were examined at 48 h by RT-PCR and western blot. At 48 h and 72 h of transfection, cell proliferation was detected by MTT, and cell mobility and migration were determined by scratch and transwell assays. Results Activity of c-Src kinase, which causes the expression of p-Src418, was upregulated by different inflammatory factors and high glucose in HLE-B3 cells. When HLE-B3 cells were transfected with pCDNA3.1-SrcY530F, the expression of c-Src kinase was upregulated on both mRNA and protein levels, and activity of c-Src kinase, expression of p-Src418 increased. The expressions of both E-cadherin and ZO-1 were suppressed, while the expressions of vimentin and α-SMA were elevated on both mRNA and protein levels at the same time. Cell proliferation, mobility and migration increased along with activation of c-Src kinase. Conversely, when HLE-B3 cells were transfected with pSlience4.1-ShSrc, both c-Src kinase and p-Src418 expressions were knocked down. The expressions of E-cadherin and ZO-1 increased, but the expressions of Vimentin and α-SMA decreased; meanwhile, cell proliferation, mobility and migration reduced. Conclusions The c-Src kinase in lens epithelial cells is easily activated by external stimuli, resulting in the induction of cell proliferation, mobility, migration and EMT.
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Affiliation(s)
- Xingyu Li
- Department of Ophthalmology, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, Shaanxi, China
| | - Fang Wang
- Department of Ophthalmology, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, Shaanxi, China
| | - Meixia Ren
- Department of Ophthalmology, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, Shaanxi, China
| | - Minjuan Du
- Department of Ophthalmology, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, Shaanxi, China
| | - Jian Zhou
- Department of Ophthalmology, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, Shaanxi, China.
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12
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Alwhaibi A, Kolhe R, Gao F, Cobran EK, Somanath PR. Genome atlas analysis based profiling of Akt pathway genes in the early and advanced human prostate cancer. Oncoscience 2019; 6:317-336. [PMID: 31360736 PMCID: PMC6650170 DOI: 10.18632/oncoscience.482] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Accepted: 04/22/2019] [Indexed: 12/19/2022] Open
Abstract
Recent studies conducted in the mouse and cellular models suggest a stage-specific, differential effect of Akt activity modulation on tumor growth and metastasis in various cancers. In prostate cancer (PCa), although the deletion of Akt1 gene in a neuroendocrine model of TRansgenic Adenocarcinoma of the Mouse Prostate (TRAMP) blunted oncogenic transformation and tumor growth, Akt1 suppression in the advanced PCa resulted in the activation of transforming growth factor-β pathway and enhanced metastasis to the lungs. Such a dual role for the Akt isoforms and its signaling partners has not been investigated in human PCa. In the current study, we performed genomic database analysis of Akt isoforms and associated pathway molecules in human prostate adenocarcinoma, castration-resistant PCa, neuroendocrine PCa and metastatic PCa for mutations, genetic alterations, mRNA and protein expressions and activating phosphorylations from cBioportal. Results from the protein data analysis from the cBioportal were compared to the results of our data on human PCa tissue analysis and the cellular effects of Akt1 suppression using MK-2206 on PCa cell aggressiveness. Our study indicates the existence of a dual role for Akt1 in PCa and warrants a large-scale analysis of the early and advanced stage PCa clinical samples for further clarity.
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Affiliation(s)
- Abdulrahman Alwhaibi
- Clinical and Experimental Therapeutics, College of Pharmacy, University of Georgia and Charlie Norwood VA Medical Center, Augusta, GA 30912
| | - Ravindra Kolhe
- Department of Pathology, Augusta University, Augusta, GA 30912
| | - Fei Gao
- Clinical and Experimental Therapeutics, College of Pharmacy, University of Georgia and Charlie Norwood VA Medical Center, Augusta, GA 30912
| | - Ewan K Cobran
- Department of Clinical and Administrative Pharmacy, College of Pharmacy, University of Georgia, Athens, GA 30602
| | - Payaningal R Somanath
- Clinical and Experimental Therapeutics, College of Pharmacy, University of Georgia and Charlie Norwood VA Medical Center, Augusta, GA 30912.,Department of Medicine, Vascular Biology Center and Cancer Center, Augusta University, Augusta, GA 30912
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13
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Dimitriou NM, Pavlopoulou A, Tremi I, Kouloulias V, Tsigaridas G, Georgakilas AG. Prediction of Gold Nanoparticle and Microwave-Induced Hyperthermia Effects on Tumor Control via a Simulation Approach. NANOMATERIALS 2019; 9:nano9020167. [PMID: 30699996 PMCID: PMC6410344 DOI: 10.3390/nano9020167] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 01/18/2019] [Accepted: 01/20/2019] [Indexed: 12/12/2022]
Abstract
Hyperthermia acts as a powerful adjuvant to radiation therapy and chemotherapy. Recent advances show that gold nanoparticles (Au-NPs) can mediate highly localized thermal effects upon interaction with laser radiation. The purpose of the present study was to investigate via in silico simulations the mechanisms of Au-NPs and microwave-induced hyperthermia, in correlation to predictions of tumor control (biological endpoints: tumor shrinkage and cell death) after hyperthermia treatment. We also study in detail the dependence of the size, shape and structure of the gold nanoparticles on their absorption efficiency, and provide general guidelines on how one could modify the absorption spectrum of the nanoparticles in order to meet the needs of specific applications. We calculated the hyperthermia effect using two types of Au-NPs and two types of spherical tumors (prostate and melanoma) with a radius of 3 mm. The plasmon peak for the 30 nm Si-core Au-coated NPs and the 20 nm Au-NPs was found at 590 nm and 540 nm, respectively. Considering the plasmon peaks and the distribution of NPs in the tumor tissue, the induced thermal profile was estimated for different intervals of time. Predictions of hyperthermic cell death were performed by adopting a three-state mathematical model, where “three-state” includes (i) alive, (ii) vulnerable, and (iii) dead states of the cell, and it was coupled with a tumor growth model. Our proposed methodology and preliminary results could be considered as a proof-of-principle for the significance of simulating accurately the hyperthermia-based tumor control involving the immune system. We also propose a method for the optimization of treatment by overcoming thermoresistance by biological means and specifically through the targeting of the heat shock protein 90 (HSP90), which plays a critical role in the thermotolerance of cells and tissues.
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Affiliation(s)
- Nikolaos M Dimitriou
- Department of Physics, School of Applied Mathematical and Physical Sciences, National Technical University of Athens (NTUA), Zografou Campus, 15780 Athens, Greece.
- Department of Bioengineering, McGill University, Montreal, QC H3A 0E9, Canada.
| | - Athanasia Pavlopoulou
- Izmir International Biomedicine and Genome Institute, Dokuz Eylül University, 35340 Balcova, Turkey.
| | - Ioanna Tremi
- Department of Physics, School of Applied Mathematical and Physical Sciences, National Technical University of Athens (NTUA), Zografou Campus, 15780 Athens, Greece.
| | - Vassilis Kouloulias
- Radiation Oncology Unit, 2nd Department of Radiology, Attikon University General Hospital, Medical School, National and Kapodistrian University of Athens, 15772 Athens, Greece.
| | - Georgios Tsigaridas
- Department of Physics, School of Applied Mathematical and Physical Sciences, National Technical University of Athens (NTUA), Zografou Campus, 15780 Athens, Greece.
| | - Alexandros G Georgakilas
- Department of Physics, School of Applied Mathematical and Physical Sciences, National Technical University of Athens (NTUA), Zografou Campus, 15780 Athens, Greece.
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14
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Artham S, Gao F, Verma A, Alwhaibi A, Sabbineni H, Hafez S, Ergul A, Somanath PR. Endothelial stromelysin1 regulation by the forkhead box-O transcription factors is crucial in the exudative phase of acute lung injury. Pharmacol Res 2019; 141:249-263. [PMID: 30611853 DOI: 10.1016/j.phrs.2019.01.006] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2018] [Revised: 12/11/2018] [Accepted: 01/02/2019] [Indexed: 12/18/2022]
Abstract
Enhanced vascular permeability is associated with inflammation and edema in alveoli during the exudative phase of acute respiratory distress syndrome (ARDS). Mechanisms leading to the endothelial contribution on the early exudative stage of ARDS are not precise. We hypothesized that modulation of endothelial stromelysin1 expression and activity by Akt1-forkhead box-O transcription factors 1/3a (FoxO1/3a) pathway could play a significant role in regulating pulmonary edema during the initial stages of acute lung injury (ALI). We utilized lipopolysaccharide (LPS)-induced mouse ALI model in vivo and endothelial barrier resistance measurements in vitro to determine the specific role of the endothelial Akt1-FoxO1/3a-stromelysin1 pathway in ALI. LPS treatment of human pulmonary endothelial cells resulted in increased stromelysin1 and reduced tight junction claudin5 involving FoxO1/3a, associated with decreased trans-endothelial barrier resistance as determined by electric cell-substrate impedance sensing technology. In vivo, LPS-induced lung edema was significantly higher in endothelial Akt1 knockdown (EC-Akt1-/-) compared to wild-type mice, which was reversed upon treatment with FoxO inhibitor (AS1842856), stromelysin1 inhibitor (UK356618) or with shRNA-mediated FoxO1/3a depletion in the mouse lungs. Overall, our study provides the hope that targeting FoxO and styromelysin1 could be beneficial in the treatment of ALI.
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Affiliation(s)
- Sandeep Artham
- Clinical and Experimental Therapeutics, College of Pharmacy, University of Georgia and Charlie Norwood VA Medical Center, Augusta, GA 30912, United States
| | - Fei Gao
- Clinical and Experimental Therapeutics, College of Pharmacy, University of Georgia and Charlie Norwood VA Medical Center, Augusta, GA 30912, United States; Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Arti Verma
- Clinical and Experimental Therapeutics, College of Pharmacy, University of Georgia and Charlie Norwood VA Medical Center, Augusta, GA 30912, United States
| | - Abdulrahman Alwhaibi
- Clinical and Experimental Therapeutics, College of Pharmacy, University of Georgia and Charlie Norwood VA Medical Center, Augusta, GA 30912, United States
| | - Harika Sabbineni
- Clinical and Experimental Therapeutics, College of Pharmacy, University of Georgia and Charlie Norwood VA Medical Center, Augusta, GA 30912, United States
| | - Sherif Hafez
- Clinical and Experimental Therapeutics, College of Pharmacy, University of Georgia and Charlie Norwood VA Medical Center, Augusta, GA 30912, United States; Department of Pharmaceutical Sciences, College of Pharmacy, Larkin University, Miami, FL 33169, United States
| | - Adviye Ergul
- Clinical and Experimental Therapeutics, College of Pharmacy, University of Georgia and Charlie Norwood VA Medical Center, Augusta, GA 30912, United States; Department of Physiology, Augusta University, Augusta, GA 30912, United States
| | - Payaningal R Somanath
- Clinical and Experimental Therapeutics, College of Pharmacy, University of Georgia and Charlie Norwood VA Medical Center, Augusta, GA 30912, United States; Department of Medicine, Vascular Biology Center and Cancer Center, Augusta University, Augusta, GA 30912, United States.
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15
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Liang H, Zhang S, Li Z. Ginsenoside Rg3 protects mouse leydig cells against triptolide by downregulation of miR-26a. Drug Des Devel Ther 2019; 13:2057-2066. [PMID: 31296984 PMCID: PMC6598939 DOI: 10.2147/dddt.s208328] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Accepted: 05/20/2019] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Ginsenoside Rg3 has been reported to exert protection function on germ cells. However, the mechanisms by which Rg3 regulates apoptosis in mouse Leydig cells remain unclear. In addition, triptolide (TP) has been reported to induce infertility in male rats. Thus, this study aimed to investigate the protective effect of Rg3 against TP-induced toxicity in MLTC-1 cells. METHODS CCK-8, immunofluorescence assay, Western blotting and flow cytometry were used to detect cell proliferation and cell apoptosis, respectively. In addition, the dual luciferase reporter system assay was used to detect the interaction between miR-26a and GSK3β in MLTC-1 cells. RESULTS TP significantly inhibited the proliferation of MLTC-1 cells, while the inhibitory effect of TP was reversed by Rg3. In addition, TP markedly induced apoptosis in MLTC-1 cells via increasing the expressions of Bax, active caspase 3, Cyto c and active caspase 9, and decreasing the level of Bcl-2. However, Rg3 alleviated TP-induced apoptosis of MLTC-1 cells. Moreover, the level of miR-26a was obviously downregulated by Rg3 treatment. The protective effect of Rg3 against TP-induced toxicity in MLTC-1 cells was abolished by miR-26a upregulation. Meanwhile, dual-luciferase assay showed GSK3β was the direct target of miR-26a in MLTC-1 cells. Overexpression of miR-26a markedly decreased the level of GSK3β. As expected, upregulation of miR-26a could abrogate the protective effects of Rg3 against TP-induced cytotoxicity via inhibiting the expression of GSK3β. CONCLUSION These results indicated that Rg3 could protect MLTC-1 against TP by downregulation of miR-26a. Therefore, Rg3 might serve as a potential agent for the treatment of male hypogonadism.
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Affiliation(s)
- Haiyan Liang
- Reproductive Center, The First Affiliated Hospital of Shantou University Medical College, Shantou University, Shantou, Guangdong515031, People’s Republic of China
| | - Suwei Zhang
- Department of Clinical Laboratory Medicine, Shantou Central Hospital, Shantou, Guangdong515031, People’s Republic of China
| | - Zhiling Li
- Reproductive Center, The First Affiliated Hospital of Shantou University Medical College, Shantou University, Shantou, Guangdong515031, People’s Republic of China
- Correspondence: Zhiling LiReproductive Center, The First Affiliated Hospital of Shantou University Medical College, Shantou University, No. 57 Changping Road, Shantou515031, Guangdong, People’s Republic of ChinaTel +8 607 548 825 8290Email
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16
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Shahid M, Lee MY, Piplani H, Andres AM, Zhou B, Yeon A, Kim M, Kim HL, Kim J. Centromere protein F (CENPF), a microtubule binding protein, modulates cancer metabolism by regulating pyruvate kinase M2 phosphorylation signaling. Cell Cycle 2018; 17:2802-2818. [PMID: 30526248 PMCID: PMC6343699 DOI: 10.1080/15384101.2018.1557496] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Revised: 11/13/2018] [Accepted: 11/28/2018] [Indexed: 12/19/2022] Open
Abstract
Prostate cancer (PC) is the most commonly diagnosed cancer in men and is the second leading cause of male cancer-related death in North America. Metabolic adaptations in malignant PC cells play a key role in fueling the growth and progression of the disease. Unfortunately, little is known regarding these changes in cellular metabolism. Here, we demonstrate that centromere protein F (CENPF), a protein associated with the centromere-kinetochore complex and chromosomal segregation during mitosis, is mechanically linked to altered metabolism and progression in PC. Using the CRISPR-Cas9 system, we silenced the gene for CENPF in human PC3 cells. These cells were found to have reduced levels of epithelial-mesenchymal transition markers and inhibited cell proliferation, migration, and invasion. Silencing of CENPF also simultaneously improved sensitivity to anoikis-induced apoptosis. Mass spectrometry analysis of tyrosine phosphorylated proteins from CENPF knockout (CENPFKO) and control cells revealed that CENPF silencing increased inactive forms of pyruvate kinase M2, a rate limiting enzyme needed for an irreversible reaction in glycolysis. Furthermore, CENPFKO cells had reduced global bio-energetic capacity, acetyl-CoA production, histone acetylation, and lipid metabolism, suggesting that CENPF is a critical regulator of cancer metabolism, potentially through its effects on mitochondrial functioning. Additional quantitative immunohistochemistry and imaging analyzes on a series of PC tumor microarrays demonstrated that CENPF expression is significantly increased in higher-risk PC patients. Based on these findings, we suggest the CENPF may be an important regulator of PC metabolism through its role in the mitochondria.
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Affiliation(s)
- Muhammad Shahid
- Departments of Surgery and Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | | | - Honit Piplani
- Department of Medicine, Cedars Sinai Medical Center, Los Angeles, CA, USA
- Cedars-Sinai Heart Institute, Los Angeles, CA, USA
| | - Allen M. Andres
- Department of Medicine, Cedars Sinai Medical Center, Los Angeles, CA, USA
- Cedars-Sinai Heart Institute, Los Angeles, CA, USA
| | - Bo Zhou
- Departments of Surgery and Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Austin Yeon
- Departments of Surgery and Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Minjung Kim
- Department of Cell Biology, Microbiology and Molecular Biology, University of South Florida, Tampa, FL, USA
| | - Hyung L. Kim
- Departments of Surgery and Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Jayoung Kim
- Departments of Surgery and Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, USA
- Department of Medicine, University of California Los Angeles, CA, USA
- Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA
- Department of Urology, Ga Cheon University College of Medicine, Incheon, South Korea
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17
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Alwhaibi A, Gao F, Artham S, Hsia BM, Mondal A, Kolhe R, Somanath PR. Modulation in the microRNA repertoire is responsible for the stage-specific effects of Akt suppression on murine neuroendocrine prostate cancer. Heliyon 2018; 4:e00796. [PMID: 30238065 PMCID: PMC6143703 DOI: 10.1016/j.heliyon.2018.e00796] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Revised: 09/07/2018] [Accepted: 09/12/2018] [Indexed: 01/12/2023] Open
Abstract
Recent studies indicate a stage-specific, differential role for the oncogene Akt on various cancers. In prostate cancer (PCa), suppression of Akt activity in the advanced stages promoted transforming growth factor-β (TGFβ) pathway-mediated epithelial-to-mesenchymal transition (EMT) and metastasis to the lungs. In the current study, we performed Affymetrix analysis to compare the expression profile of microRNAs in the mouse prostate tissues collected at the prostatic inter-epithelial neoplasia (PIN) stage from Transgenic adenocarcinoma of the mouse (TRAMP)/Akt1+/+ versus TRAMP/Akt1–/– mice, and at the advanced stage from TRAMP/Akt1+/+ mice treated with triciribine (Akt inhibitor) versus DMSO-treated control. Our analysis demonstrates that in the early stage, Akt1 in the TRAMP prostate tumors express a set of miRNAs responsible for regulating cancer cell survival, proliferation, and tumor growth, whereas, in the advanced stages, a different set of miRNAs that promote EMT and cancer metastasis is expressed. Our study has identified novel Akt-regulated signature microRNAs in the early and advanced PCa and demonstrates their differential effects on PCa growth and metastasis.
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Affiliation(s)
- Abdulrahman Alwhaibi
- Clinical and Experimental Therapeutics, College of Pharmacy, University of Georgia and Charlie Norwood VA Medical Center, Augusta, GA 30912, USA
| | - Fei Gao
- Clinical and Experimental Therapeutics, College of Pharmacy, University of Georgia and Charlie Norwood VA Medical Center, Augusta, GA 30912, USA.,Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Sandeep Artham
- Clinical and Experimental Therapeutics, College of Pharmacy, University of Georgia and Charlie Norwood VA Medical Center, Augusta, GA 30912, USA
| | - Bernard M Hsia
- Clinical and Experimental Therapeutics, College of Pharmacy, University of Georgia and Charlie Norwood VA Medical Center, Augusta, GA 30912, USA
| | - Ashis Mondal
- Department of Pathology, Augusta University, Augusta, GA 30912, USA
| | - Ravindra Kolhe
- Department of Pathology, Augusta University, Augusta, GA 30912, USA
| | - Payaningal R Somanath
- Clinical and Experimental Therapeutics, College of Pharmacy, University of Georgia and Charlie Norwood VA Medical Center, Augusta, GA 30912, USA.,Department of Medicine, Vascular Biology Center and Cancer Center, Augusta University, Augusta, GA 30912, USA
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18
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Sabbineni H, Verma A, Somanath PR. Isoform-specific effects of transforming growth factor β on endothelial-to-mesenchymal transition. J Cell Physiol 2018; 233:8418-8428. [PMID: 29856065 DOI: 10.1002/jcp.26801] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2017] [Accepted: 04/30/2018] [Indexed: 02/06/2023]
Abstract
Endothelial-to-mesenchymal transition (EndMT) was first reported in the embryogenesis. Recent studies show that EndMT also occurs in the disease progression of atherosclerosis, cardiac and pulmonary fibrosis, pulmonary hypertension, diabetic nephropathy, and cancer. Although transforming growth factor β (TGFβ) is crucial for EndMT, it is not clear which isoform elicits a predominant effect. The current study aims to directly compare the dose-dependent effects of TGFβ1, TGFβ2, and TGFβ3 on EndMT and characterize the underlying mechanisms. In our results, all three TGFβ isoforms induced EndMT in human microvascular endothelial cells after 72 hr, as evidenced by the increased expression of mesenchymal markers N-cadherin and α-smooth muscle actin as well as the decreased expression of endothelial nitric oxide synthase. Interestingly, the effect of TGFβ2 was the most pronounced. At 1 ng/ml, only TGFβ2 treatment resulted in significantly increased phosphorylation (activation) of Smad2/3 and p38-MAPK and increased expression of mesenchymal transcription factors Snail and FoxC2. Intriguingly, we observed that treatment with 1 ng/ml TGFβ1 and TGFβ3, but not TGFβ2, resulted in an increased expression of TGFβ2, thus indicating that EndMT with TGFβ1 and TGFβ3 treatments was due to the secondary effects through TGFβ2 secretion. Furthermore, silencing TGFβ2 using small interfering RNA blunted the expression of EndMT markers in TGFβ1- and TGFβ3-treated cells. Together, our results indicate that TGFβ2 is the most potent inducer of EndMT and that TGFβ1- and TGFβ3-induced EndMT necessitates a paracrine loop involving TGFβ2.
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Affiliation(s)
- Harika Sabbineni
- Department of Clinical and Experimental Therapeutics, College of Pharmacy, University of Georgia, Augusta, Georgia.,Charlie Norwood VA Medical Center, Augusta, Georgia
| | - Arti Verma
- Department of Clinical and Experimental Therapeutics, College of Pharmacy, University of Georgia, Augusta, Georgia.,Charlie Norwood VA Medical Center, Augusta, Georgia
| | - Payaningal R Somanath
- Department of Clinical and Experimental Therapeutics, College of Pharmacy, University of Georgia, Augusta, Georgia.,Charlie Norwood VA Medical Center, Augusta, Georgia.,Department of Medicine and Vascular Biology Center, Augusta University, Augusta, Georgia
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19
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Endothelial Akt1 loss promotes prostate cancer metastasis via β-catenin-regulated tight-junction protein turnover. Br J Cancer 2018; 118:1464-1475. [PMID: 29755115 PMCID: PMC5988746 DOI: 10.1038/s41416-018-0110-1] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Revised: 04/11/2018] [Accepted: 04/16/2018] [Indexed: 02/07/2023] Open
Abstract
Background Cancer research, in general, is focused on targeting tumour cells to limit tumour growth. These studies, however, do not account for the specific effects of chemotherapy on tumour endothelium, in turn, affecting metastasis. Methods We determined how endothelial deletion of Akt1 promotes prostate cancer cell invasion in vitro and metastasis to the lungs in vivo in endothelial-specific Akt1 knockdown mice. Results Here we show that metastatic human PC3 and DU145 prostate cancer cells invade through Akt1-deficient human lung endothelial cell (HLEC) monolayer with higher efficiency compared to control HLEC. Although the endothelial Akt1 loss in mice had no significant effect on RM1 tumour xenograft growth in vivo, it promoted metastasis to the lungs compared to the wild-type mice. Mechanistically, Akt1-deficient endothelial cells exhibited increased phosphorylation and nuclear translocation of phosphorylated β-catenin, and reduced expression of tight-junction proteins claudin-5, ZO-1 and ZO-2. Pharmacological inhibition of β-catenin nuclear translocation using compounds ICG001 and IWR-1 restored HLEC tight-junction integrity and inhibited prostate cancer cell transendothelial migration in vitro and lung metastasis in vivo. Conclusions Here we show for the first time that endothelial-specific loss of Akt1 promotes cancer metastasis in vivo involving β-catenin pathway.
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20
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Vashishtha V, Jinghan N, K.Yadav A. Antagonistic role of GSK3 isoforms in glioma survival. J Cancer 2018; 9:1846-1855. [PMID: 29805711 PMCID: PMC5968773 DOI: 10.7150/jca.21248] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Accepted: 11/19/2017] [Indexed: 12/25/2022] Open
Abstract
GSK3 (Glycogen Synthase Kinase-3) function in brain is contributed by two distinct gene GSK3 alpha and GSK3 beta. Present findings indicate that imbalance in between GSK3 alpha and beta isoform contributes oncogenesis. In gliomas, GSK3 isoform specific functions are different then as reported for melanoma, prostate cancer, lung cancer etc. Both the isoforms of GSK3 are inversely regulating hnRNPA1 (RNA binding protein) expression, subsequently affecting RNA alternative splicing (BIN1, RON, Mcl1, PKM) in gliomas. Elevated expression of c-Myc, hnRNPA1, Phospo-ERK1/2 and Cyclin D1 in GSK3 alpha knock down cells, resembles GSK3 beta isoform overexpressing glioma cells, promotes cell survival. HnRNPA1 dependent survival signaling pathway were elaborated using si RNA approach or by over expressing cloned hnRNPA1 gene in U87 glioma cells. Therefore, performed study empirically support GSK3β inhibition along with restoration of GSK3α would be a good strategy to target gliomas.
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Affiliation(s)
| | | | - Ajay K.Yadav
- Cancer Genetics Laboratory, Dr. B.R. Ambedkar Center for Biomedical Research, University of Delhi (North Campus), Delhi- 110007, India
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Rycaj K, Tang DG. Molecular determinants of prostate cancer metastasis. Oncotarget 2017; 8:88211-88231. [PMID: 29152153 PMCID: PMC5675705 DOI: 10.18632/oncotarget.21085] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2017] [Accepted: 08/31/2017] [Indexed: 12/12/2022] Open
Abstract
Metastatic cancer remains largely incurable and fatal. The general course of cancer, from the initiation of primary tumor formation and progression to metastasis, is a multistep process wherein tumor cells at each step must display specific phenotypic features. Distinctive capabilities required for primary tumor initiation and growth form the foundation, and sometimes may remain critical, for subsequent metastases. These phenotypic features must remain easily malleable during the acquisition of additional capabilities unique and essential to the metastatic process such as dissemination to distant tissues wherein tumor cells interact with foreign microenvironments. Thus, the metastatic phenotype is a culmination of multiple genetic and epigenetic alterations and subsequent selection for favorable traits under the pressure of ever-changing tumor microenvironments. Although our understanding of the molecular programs that drive cancer metastasis are incomplete, increasing evidence suggests that successful metastatic colonization relies on the dissemination of cancer stem cells (CSCs) with tumor-regenerating capacity and adaptive programs for survival in distant organs. In the past 2-3 years, a myriad of novel molecular regulators and determinants of prostate cancer metastasis have been reported, and in this Perspective, we comprehensively review this body of literature and summarize recent findings regarding cell autonomous molecular mechanisms critical for prostate cancer metastasis.
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Affiliation(s)
- Kiera Rycaj
- Department of Pharmacology and Therapeutics, Roswell Park Cancer Institute, Buffalo, NY 14263, USA
| | - Dean G. Tang
- Department of Pharmacology and Therapeutics, Roswell Park Cancer Institute, Buffalo, NY 14263, USA
- Cancer Stem Cell Institute, Research Center for Translational Medicine, East Hospital, Tongji University School of Medicine, Shanghai 200120, China
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22
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Konac E, Kiliccioglu I, Sogutdelen E, Dikmen AU, Albayrak G, Bilen CY. Do the expressions of epithelial-mesenchymal transition proteins, periostin, integrin-α4 and fibronectin correlate with clinico-pathological features and prognosis of metastatic castration-resistant prostate cancer? Exp Biol Med (Maywood) 2017; 242:1795-1801. [PMID: 28836852 DOI: 10.1177/1535370217728499] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Development of metastatic castration-resistant prostate cancer is a result of the lack of an apoptotic response by the tumor cells and loss of the ability to stick to adjacent cells through epithelial-mesenchymal transition. Although there are several strongly recommended biomarkers for determining prognosis of metastatic castration-resistant prostate cancer, only few of them may help decide the selection of the optimal treatment option. The mode of treatment sequencing in metastatic castration-resistant prostate cancer will be based on the individual characteristics of the patient. In this study, we aimed to explain the correlation between the expression characteristics of periostin, integrin-α4, and fibronectin in metastatic castration-resistant prostate cancer patients and their clinico-pathological data comprising Gleason score, PSA levels, and metastatic sites in the process of epithelial-mesenchymal transition. We evaluated by using Western blotting, periostin, integrin-α4, and fibronectin expressions in peripheral blood samples of metastatic castration-resistant prostate cancer patients ( n = 40), benign prostatic hyperplasia patients ( n = 20), and the healthy control group ( n = 20). Associations between changes in the protein expressions and clinico-pathological parameters were also analyzed in the metastatic castration-resistant prostate cancer group. When comparing BPH and healthy groups with the metastatic castration-resistant prostate cancer group, a reduced expression of integrin-α4 was found in metastatic patients, albeit being statistically insignificant ( P > 0.05). Protein expressions of periostin and fibronectin in the metastatic castration-resistant prostate cancer group were higher than those in the BPH and heathy groups ( P < 0.001). Increased periostin expression in metastatic patients was significantly associated with bone metastasis ( P < 0.05). Elevated periostin and fibronectin levels in metastatic castration-resistant prostate cancer patients may be appropriate targets of therapeutic intervention in the future. Impact statement Prostate cancer is the third most common cancer in the world and the most common cancer among men. Development of metastatic castration-resistant prostate cancer (mCRPC) is a result of the lack of an apoptotic response by the tumor cells and loss of the ability to stick to adjacent cells through epithelial-mesenchymal transition (EMT). The present study analyzes for the first time the expressions of EMT marker proteins - periostin, integrin α4, fibronectin - in mCRPC and in benign prostatic hyperplasia (BPH) with the aim to determine the clinical relevance of changes in these three proteins vis-a-vis the PCa aggressive phenotype. In doing so, it sheds light on the molecular mechanism underlying the disease. We concluded that elevated periostin and fibronectin levels in mCRPC patients may be appropriate targets of therapeutic intervention in the future; hence, adopting methods that target these proteins may help treat prostate cancer effectively.
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Affiliation(s)
- Ece Konac
- 1 Department of Medical Biology and Genetics, Faculty of Medicine, Gazi University, Besevler, Ankara 06510, Turkey
| | - Ilker Kiliccioglu
- 1 Department of Medical Biology and Genetics, Faculty of Medicine, Gazi University, Besevler, Ankara 06510, Turkey
| | - Emrullah Sogutdelen
- 2 Department of Urology, Faculty of Medicine, Hacettepe University, Sıhhiye, Ankara 06100, Turkey
| | - Asiye U Dikmen
- 3 Department of Public Health, Faculty of Medicine, Gazi University, Besevler, Ankara 06510, Turkey
| | - Gulsah Albayrak
- 1 Department of Medical Biology and Genetics, Faculty of Medicine, Gazi University, Besevler, Ankara 06510, Turkey
| | - Cenk Y Bilen
- 2 Department of Urology, Faculty of Medicine, Hacettepe University, Sıhhiye, Ankara 06100, Turkey
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23
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2-Deoxy-D-glucose Restore Glucocorticoid Sensitivity in Acute Lymphoblastic Leukemia via Modification of N-Linked Glycosylation in an Oxygen Tension-Independent Manner. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2017; 2017:2487297. [PMID: 28814986 PMCID: PMC5549481 DOI: 10.1155/2017/2487297] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Revised: 04/24/2017] [Accepted: 05/08/2017] [Indexed: 01/19/2023]
Abstract
In childhood acute lymphoblastic leukemia, treatment failure is associated with resistance to glucocorticoid agents. Resistance to this class of drugs represents one of the strongest indicators of poor clinical outcome. We show that leukemic cells, which are resistant to the glucocorticoid drug methylprednisolone, display a higher demand of glucose associated with a deregulation of metabolic pathways, in comparison to sensitive cells. Interestingly, a combinatorial treatment of glucocorticoid and the glucose analog 2-deoxy-D-glucose displayed a synergistic effect in methylprednisolone-resistant cells, in an oxygen tension-independent manner. Unlike solid tumors, where 2-deoxy-D-glucose promotes inhibition of glycolysis by hexokinase II exclusively under hypoxic conditions, we were able to show that the antileukemic effects of 2-deoxy-D-glucose are far more complex in leukemia. We demonstrate a hexokinase II-independent cell viability decrease and apoptosis induction of the glucose analog in leukemia. Additionally, due to the structural similarity of 2-deoxy-D-glucose with mannose, we could confirm that the mechanism by which 2-deoxy-D-glucose predominantly acts in leukemia is via modification in N-linked glycosylation, leading to endoplasmic reticulum stress and consequently induction of the unfolded protein response.
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Gao F, Alwhaibi A, Sabbineni H, Verma A, Eldahshan W, Somanath PR. Suppression of Akt1-β-catenin pathway in advanced prostate cancer promotes TGFβ1-mediated epithelial to mesenchymal transition and metastasis. Cancer Lett 2017; 402:177-189. [PMID: 28602980 DOI: 10.1016/j.canlet.2017.05.028] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2017] [Revised: 05/24/2017] [Accepted: 05/25/2017] [Indexed: 11/25/2022]
Abstract
Akt1 is essential for the oncogenic transformation and tumor growth in various cancers. However, the precise role of Akt1 in advanced cancers is conflicting. Using a neuroendocrine TRansgenic Adenocarcinoma of the Mouse Prostate (TRAMP) model, we first show that the genetic ablation or pharmacological inhibition of Akt1 in mice blunts oncogenic transformation and prostate cancer (PCa) growth. Intriguingly, triciribine (TCBN)-mediated Akt inhibition in 25-week old, tumor-bearing TRAMP mice and Akt1 gene silencing in aggressive PCa cells enhanced epithelial to mesenchymal transition (EMT) and promoted metastasis to the lungs. Mechanistically, Akt1 suppression leads to increased expression of EMT markers such as Snail1 and N-cadherin and decreased expression of epithelial marker E-cadherin in TRAMP prostate, and in PC3 and DU145 cells. Next, we identified that Akt1 knockdown in PCa cells results in increased production of TGFβ1 and its receptor TGFβ RII, associated with a decreased expression of β-catenin. Furthermore, treatment of PCa cells with ICG001 that blocks nuclear translocation of β-catenin promoted EMT and N-cadherin expression. Together, our study demonstrates a novel role of the Akt1-β-catenin-TGFβ1 pathway in advanced PCa.
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Affiliation(s)
- Fei Gao
- Clinical and Experimental Therapeutics, College of Pharmacy, University of Georgia and Charlie Norwood VA Medical Center, Augusta, GA 30912, USA; Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Abdulrahman Alwhaibi
- Clinical and Experimental Therapeutics, College of Pharmacy, University of Georgia and Charlie Norwood VA Medical Center, Augusta, GA 30912, USA
| | - Harika Sabbineni
- Clinical and Experimental Therapeutics, College of Pharmacy, University of Georgia and Charlie Norwood VA Medical Center, Augusta, GA 30912, USA
| | - Arti Verma
- Clinical and Experimental Therapeutics, College of Pharmacy, University of Georgia and Charlie Norwood VA Medical Center, Augusta, GA 30912, USA
| | - Wael Eldahshan
- Clinical and Experimental Therapeutics, College of Pharmacy, University of Georgia and Charlie Norwood VA Medical Center, Augusta, GA 30912, USA
| | - Payaningal R Somanath
- Clinical and Experimental Therapeutics, College of Pharmacy, University of Georgia and Charlie Norwood VA Medical Center, Augusta, GA 30912, USA; Department of Medicine, Vascular Biology Center and Cancer Center, Augusta University, Augusta, GA 30912, USA.
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25
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Huang H, Du T, Zhang Y, Lai Y, Li K, Fan X, Zhu D, Lin T, Xu K, Huang J, Liu L, Guo Z. Elevation of SHARPIN Protein Levels in Prostate Adenocarcinomas Promotes Metastasis and Impairs Patient Survivals. Prostate 2017; 77:718-728. [PMID: 28230260 DOI: 10.1002/pros.23302] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Accepted: 12/20/2016] [Indexed: 12/25/2022]
Abstract
BACKGROUND SHARPIN, SHANK-associated RH domain interacting protein, associates with a linear ubiquitin chain assembly complex (LUBAC) to regulate inflammation and immunity. It has been reported that SHARPIN is highly expressed in several human tumors including ovarian cancer and liver cancer. We found that SHARPIN is also highly expressed in prostate cancer cell lines of DU145, LNCAP, and PC-3. Suppression of SHARPIN caused an inhibition of NF-κB signal and decreases in tumorigenesis of cultured cells in NOD/SCID mouse model. Overexpression of SHARPIN in prostate cancer cells promoted cell growth and reduced apoptosis through NF-kB/ERK/Akt pathway and apoptosis-associated proteins. METHODS We analyzed the expression of SHARPIN in prostate cancer tissues from 95 patients and its relationship with other clinical characteristics associated with PCA malignancies and patient survivals, and examined the impacts of SHARPIN suppression with siRNA on proliferation, angiogenesis, invasion, and expression levels of MMP-9 of prostate cancer cells and metastasis to lung by these cells in nude mice. RESULTS High levels of SHARPIN were associated with high malignancies of PCA and predicted shorter survivals of PCA patients. Suppression of SHARPIN impaired cell proliferation, angiogenesis, and invasion and reduced levels of MMP-9 in prostate cancer cells and reduced the size of metastatic lung tumors induced by these cells in mice. CONCLUSIONS SHARPIN enhances the metastasis of prostate cancer and impair patient survivals. Prostate 77:718-728, 2017. © 2017 Wiley Periodicals, Inc.
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Affiliation(s)
- Hai Huang
- Department of Urology, The Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
- Center for Cancer and Stem Cell Biology, Institute of Biosciences and Technology, Texas A&M University, Houston, Texas
| | - Tao Du
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
- Center for Cancer and Stem Cell Biology, Institute of Biosciences and Technology, Texas A&M University, Houston, Texas
- Department of Gynecology & Obstetrics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Yiming Zhang
- Department of Urology, The Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
- Department of Urology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Yiming Lai
- Department of Urology, The Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Kaiwen Li
- Department of Urology, The Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Xinxing Fan
- Department of Urology, The Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Dingjun Zhu
- Department of Urology, The Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Tianxin Lin
- Department of Urology, The Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Kewei Xu
- Department of Urology, The Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Jian Huang
- Department of Urology, The Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Leyuan Liu
- Center for Cancer and Stem Cell Biology, Institute of Biosciences and Technology, Texas A&M University, Houston, Texas
- Department of Molecular and Cellular Medicine, College of Medicine, Texas A&M University, College Station, Houston, Texas
| | - Zhenghui Guo
- Department of Urology, The Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
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26
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Influence of TGF-β1 on tumor transition in oral cancer cell and BMSC co-cultures. J Craniomaxillofac Surg 2017; 45:731-740. [DOI: 10.1016/j.jcms.2017.02.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Revised: 12/19/2016] [Accepted: 02/07/2017] [Indexed: 12/11/2022] Open
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27
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Gao F, Sabbineni H, Artham S, Somanath PR. Modulation of long-term endothelial-barrier integrity is conditional to the cross-talk between Akt and Src signaling. J Cell Physiol 2017; 232:2599-2609. [PMID: 28075016 DOI: 10.1002/jcp.25791] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Revised: 01/06/2017] [Accepted: 01/10/2017] [Indexed: 12/30/2022]
Abstract
Although numerous studies have implicated Akt and Src kinases in vascular endothelial growth factor (VEGF) and Angiopoietin-1 (Ang-1)-induced endothelial-barrier regulation, a link between these two pathways has never been demonstrated. We determined the long-term effects of Akt inhibition on Src activity and vice versa, and in turn, on the human microvascular endothelial cell (HMEC) barrier integrity at the basal level, and in response to growth factors. Our data showed that Akt1 gene knockdown increases gap formation in HMEC monolayer at the basal level. Pharmacological inhibition of Akt, but not Src resulted in exacerbated VEGF-induced vascular leakage and impaired Ang-1-induced HMEC-barrier protection in vitro at 24 hr. Whereas inhibition of Akt had no effect on VEGF-induced HMEC gap formation in the short term, inhibition of Src blunted this process. In contrast, inhibition of Akt disrupted the VEGF and Ang-1 stabilized barrier integrity in the long-term while inhibition of Src did not. Interestingly, both long-term Akt inhibition and Akt1 gene knockdown in HMECs resulted in increased Tyr416 phosphorylation of Src. Treatment of HMECs with transforming growth factor-β1 (TGFβ1) that inhibited Akt Ser473 phosphorylation in the long-term, activated Src through increased Tyr416 phosphorylation and decreased HMEC-barrier resistance. The effect of TGFβ1 on endothelial-barrier breakdown was blunted in Akt1 deficient HMEC monolayers, where endothelial-barrier resistance was already impaired compared to the control. To our knowledge, this is the first report demonstrating a direct cross-talk between Akt and Src in endothelial-barrier regulation.
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Affiliation(s)
- Fei Gao
- Clinical and Experimental Therapeutics, University of Georgia and Charlie Norwood VA Medical Center, Augusta, Georgia.,Department of Urology, The First Affiliated Hospital of Chongqing University, Chongqing, China
| | - Harika Sabbineni
- Clinical and Experimental Therapeutics, University of Georgia and Charlie Norwood VA Medical Center, Augusta, Georgia
| | - Sandeep Artham
- Clinical and Experimental Therapeutics, University of Georgia and Charlie Norwood VA Medical Center, Augusta, Georgia
| | - Payaningal R Somanath
- Clinical and Experimental Therapeutics, University of Georgia and Charlie Norwood VA Medical Center, Augusta, Georgia.,Department of Medicine and Vascular Biology Center, Augusta University, Augusta, Georgia
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28
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Tao F, Ruan S, Liu W, Wang L, Xiong Y, Shen M. Fuling Granule, a Traditional Chinese Medicine Compound, Suppresses Cell Proliferation and TGFβ-Induced EMT in Ovarian Cancer. PLoS One 2016; 11:e0168892. [PMID: 28036353 PMCID: PMC5201296 DOI: 10.1371/journal.pone.0168892] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2015] [Accepted: 11/01/2016] [Indexed: 12/14/2022] Open
Abstract
The compound fuling granule (CFG) is a traditional Chinese drug which has been used to treat ovarian cancer in China for over twenty years. Nevertheless, the underlying molecular mechanism of its anti-cancer effect remains unclear. In this study, microarray data analysis was performed to search differentially expressed genes in CFG-treated ovarian cancer cells. Several cell cycle and epithelial-mesenchymal transition (EMT) related genes were identified. The microarray analyses also revealed that CFG potentially regulates EMT in ovarian cancer. We also found that, functionally, CFG significantly suppresses ovarian cancer cell proliferation by cell cycle arrest, apoptosis and senescence and the AKT/GSK-3β pathway is possibly involved. Additionally, the invasion and migration ability of ovarian cancer induced by TGFβ is significantly suppressed by CFG. In conclusion, our results demonstrated that CFG suppresses ovarian cancer cell proliferation as well as TGFβ1-induced EMT in vitro. Finally, we discovered that CFG suppresses tumor growth and distant metastasis in vivo. Overall, these findings provide helpful clues to design novel clinical treatments against cancer.
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Affiliation(s)
- Fangfang Tao
- Department of Immunology and Microbiology, Basic Medical College, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Shanming Ruan
- Department of Medical Oncology, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Wenhong Liu
- Department of Immunology and Microbiology, Basic Medical College, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Libin Wang
- Institute of Stem Cell Research, General Hospital of Ningxia Medical University, Yinchuan, Ningxia, China
| | - Yang Xiong
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Minhe Shen
- Department of Medical Oncology, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
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29
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Gao F, Artham S, Sabbineni H, Al-Azayzih A, Peng XD, Hay N, Adams RH, Byzova TV, Somanath PR. Akt1 promotes stimuli-induced endothelial-barrier protection through FoxO-mediated tight-junction protein turnover. Cell Mol Life Sci 2016; 73:3917-33. [PMID: 27113546 PMCID: PMC5023469 DOI: 10.1007/s00018-016-2232-z] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Revised: 04/12/2016] [Accepted: 04/14/2016] [Indexed: 11/28/2022]
Abstract
Vascular permeability regulated by the vascular endothelial growth factor (VEGF) through endothelial-barrier junctions is essential for inflammation. Mechanisms regulating vascular permeability remain elusive. Although 'Akt' and 'Src' have been implicated in the endothelial-barrier regulation, it is puzzling how both agents that protect and disrupt the endothelial-barrier activate these kinases to reciprocally regulate vascular permeability. To delineate the role of Akt1 in endothelial-barrier regulation, we created endothelial-specific, tamoxifen-inducible Akt1 knockout mice and stable ShRNA-mediated Akt1 knockdown in human microvascular endothelial cells. Akt1 loss leads to decreased basal and angiopoietin1-induced endothelial-barrier resistance, and enhanced VEGF-induced endothelial-barrier breakdown. Endothelial Akt1 deficiency resulted in enhanced VEGF-induced vascular leakage in mice ears, which was rescued upon re-expression with Adeno-myrAkt1. Furthermore, co-treatment with angiopoietin1 reversed VEGF-induced vascular leakage in an Akt1-dependent manner. Mechanistically, our study revealed that while VEGF-induced short-term vascular permeability is independent of Akt1, its recovery is reliant on Akt1 and FoxO-mediated claudin expression. Pharmacological inhibition of FoxO transcription factors rescued the defective endothelial barrier due to Akt1 deficiency. Here we provide novel insights on the endothelial-barrier protective role of VEGF in the long term and the importance of Akt1-FoxO signaling on tight-junction stabilization and prevention of vascular leakage through claudin expression.
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Affiliation(s)
- Fei Gao
- Clinical and Experimental Therapeutics, College of Pharmacy, University of Georgia and Charlie Norwood VA Medical Center, Augusta, GA, USA
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Sandeep Artham
- Clinical and Experimental Therapeutics, College of Pharmacy, University of Georgia and Charlie Norwood VA Medical Center, Augusta, GA, USA
| | - Harika Sabbineni
- Clinical and Experimental Therapeutics, College of Pharmacy, University of Georgia and Charlie Norwood VA Medical Center, Augusta, GA, USA
| | - Ahmad Al-Azayzih
- Clinical and Experimental Therapeutics, College of Pharmacy, University of Georgia and Charlie Norwood VA Medical Center, Augusta, GA, USA
- College of Pharmacy, Jordan University of Science and Technology, Irbid, Jordan
| | - Xiao-Ding Peng
- Department of Biochemistry and Molecular Genetics, College of Medicine, University of Illinois at Chicago, Chicago, IL, USA
| | - Nissim Hay
- Department of Biochemistry and Molecular Genetics, College of Medicine, University of Illinois at Chicago, Chicago, IL, USA
| | - Ralf H Adams
- Max Plank Institute of Molecular Biomedicine, Röntgenstraße 20, Münster, Germany
| | - Tatiana V Byzova
- Department of Molecular Cardiology, Joseph J. Jacob's Center for Thrombosis and Vascular Biology, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Payaningal R Somanath
- Clinical and Experimental Therapeutics, College of Pharmacy, University of Georgia and Charlie Norwood VA Medical Center, Augusta, GA, USA.
- Department of Medicine and Vascular Biology Center, Augusta University, HM1200, Augusta, GA, 30912, USA.
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30
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Xanthatin anti-tumor cytotoxicity is mediated via glycogen synthase kinase-3β and β-catenin. Biochem Pharmacol 2016; 115:18-27. [DOI: 10.1016/j.bcp.2016.06.009] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Accepted: 06/15/2016] [Indexed: 12/13/2022]
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31
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Patel A, Sabbineni H, Clarke A, Somanath PR. Novel roles of Src in cancer cell epithelial-to-mesenchymal transition, vascular permeability, microinvasion and metastasis. Life Sci 2016; 157:52-61. [PMID: 27245276 DOI: 10.1016/j.lfs.2016.05.036] [Citation(s) in RCA: 103] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Revised: 05/25/2016] [Accepted: 05/27/2016] [Indexed: 12/21/2022]
Abstract
The Src-family kinases (SFKs), an intracellularly located group of non-receptor tyrosine kinases are involved in oncogenesis. The importance of SFKs has been implicated in the promotion of tumor cell motility, proliferation, inhibition of apoptosis, invasion and metastasis. Recent evidences indicate that specific effects of SFKs on epithelial-to-mesenchymal transition (EMT) as well as on endothelial and stromal cells in the tumor microenvironment can have profound effects on tumor microinvasion and metastasis. Although, having been studied extensively, these novel features of SFKs may contribute to greater understanding of benefits from Src inhibition in various types of cancers. Here we review the novel role of SFKs, particularly c-Src in mediating EMT, modulation of tumor endothelial-barrier, transendothelial migration (microinvasion) and metastasis of cancer cells, and discuss the utility of Src inhibitors in vascular normalization and cancer therapy.
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Affiliation(s)
- Ami Patel
- Clinical and Experimental Therapeutics, College of Pharmacy, University of Georgia, Augusta, GA, United States
| | - Harika Sabbineni
- Clinical and Experimental Therapeutics, College of Pharmacy, University of Georgia, Augusta, GA, United States; Charlie Norwood VA Medical Center, Augusta, GA, United States
| | - Andrea Clarke
- Clinical and Experimental Therapeutics, College of Pharmacy, University of Georgia, Augusta, GA, United States
| | - Payaningal R Somanath
- Clinical and Experimental Therapeutics, College of Pharmacy, University of Georgia, Augusta, GA, United States; Charlie Norwood VA Medical Center, Augusta, GA, United States; Department of Medicine, Vascular Biology Center and Cancer Center, Augusta University, Augusta, GA, United States.
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32
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Kang R, Zhao S, Liu L, Li F, Li E, Luo L, Xu L, Wan S, Zhao Z. Knockdown of PSCA induces EMT and decreases metastatic potentials of the human prostate cancer DU145 cells. Cancer Cell Int 2016; 16:20. [PMID: 26981049 PMCID: PMC4791869 DOI: 10.1186/s12935-016-0295-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Accepted: 03/04/2016] [Indexed: 11/10/2022] Open
Abstract
Background Prostate stem cell antigen (PSCA) expression has been shown to correlate with prostatic carcinogenesis and prostate cancer (PCa) progression. The underlying mechanisms for these processes are currently unknown. Epithelial to mesenchymal transition (EMT) has been associated with the invasiveness and the distant metastasis of PCa. In this study, we investigated the effects of knocking down the PSCA on the cell migration, the invasiveness, and the EMT of the PCa cell line DU145 in vitro and in vivo. Methods Four target sequences of the small hairpin RNA for PSCA were designed, and the best effect knockdown sequence shRNA#1 was screened to construct the stable transfected DU145 cell line (DU145 shRNA#1), the scramble sequence was also designed to construct the stable transfected DU145 cell line(DU145 scramble). Cell migration and invasion were studied using Transwell assay. Quantitative RT-PCR, Western blot (WB) were used to quantify PSCA, E-cadherin, β-catenin, Vimentin, Fibronectin expression in DU145, DU145 scramble, DU145 shRNA#1 in vitro and in vivo. RT-PCR, immunofluorescent staining were used to quantify PSCA, E-cadherin, and Vimentin expression in vitro. EMT-related genes Snail, Slug, and Twist, were quantified by quantitative RT-PCR in vitro. Results The constructed stable knockdown of the PSCA in the DU145 cell had a silencing effect up to 90.5 %. DU145 shRNA#1 became scattered from the tightly packed colonies. It was associated with decreased cell migration and invasion. There was also an increased Vimentin and Fibronectin expression, an inhibited E-cadherin and β-catenin expression at both the mRNA and the protein levels when compared to the DU145 and the DU145 scramble in vitro and vivo. Furthermore, with the exception of the Snail, the expression of EMT-related Slug and Twist genes were upregulated. Conclusions Our data indicated that knockdown of PSCA induced EMT and reduced metastatic potentials of the DU145 cells, suggesting that PSCA played an important role in prostatic carcinogenesis and progression.
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Affiliation(s)
- Ran Kang
- Department of Urology & Andrology, Minimally Invasive Surgery Center, The First Affiliated Hospital of Guangzhou Medical University, Guangdong Provincial Key Laboratory of Urology, No.1-3, Kangda Road, Guangzhou, 510230 Guangdong Province China
| | - Shankun Zhao
- Department of Urology & Andrology, Minimally Invasive Surgery Center, The First Affiliated Hospital of Guangzhou Medical University, Guangdong Provincial Key Laboratory of Urology, No.1-3, Kangda Road, Guangzhou, 510230 Guangdong Province China
| | - Luhao Liu
- Department of Urology & Andrology, Minimally Invasive Surgery Center, The First Affiliated Hospital of Guangzhou Medical University, Guangdong Provincial Key Laboratory of Urology, No.1-3, Kangda Road, Guangzhou, 510230 Guangdong Province China
| | - Futian Li
- Department of Urology & Andrology, Minimally Invasive Surgery Center, The First Affiliated Hospital of Guangzhou Medical University, Guangdong Provincial Key Laboratory of Urology, No.1-3, Kangda Road, Guangzhou, 510230 Guangdong Province China
| | - Ermao Li
- Department of Urology & Andrology, Minimally Invasive Surgery Center, The First Affiliated Hospital of Guangzhou Medical University, Guangdong Provincial Key Laboratory of Urology, No.1-3, Kangda Road, Guangzhou, 510230 Guangdong Province China
| | - Lianmin Luo
- Department of Urology & Andrology, Minimally Invasive Surgery Center, The First Affiliated Hospital of Guangzhou Medical University, Guangdong Provincial Key Laboratory of Urology, No.1-3, Kangda Road, Guangzhou, 510230 Guangdong Province China
| | - Lihua Xu
- Department of Hematology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510230 China
| | - ShawPong Wan
- Department of Urology & Andrology, Minimally Invasive Surgery Center, The First Affiliated Hospital of Guangzhou Medical University, Guangdong Provincial Key Laboratory of Urology, No.1-3, Kangda Road, Guangzhou, 510230 Guangdong Province China
| | - Zhigang Zhao
- Department of Urology & Andrology, Minimally Invasive Surgery Center, The First Affiliated Hospital of Guangzhou Medical University, Guangdong Provincial Key Laboratory of Urology, No.1-3, Kangda Road, Guangzhou, 510230 Guangdong Province China
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Gravina GL, Mancini A, Scarsella L, Colapietro A, Jitariuc A, Vitale F, Marampon F, Ricevuto E, Festuccia C. Dual PI3K/mTOR inhibitor, XL765 (SAR245409), shows superior effects to sole PI3K [XL147 (SAR245408)] or mTOR [rapamycin] inhibition in prostate cancer cell models. Tumour Biol 2015. [PMID: 26219891 DOI: 10.1007/s13277-015-3725-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Deregulation of phosphatidylinositol-3-kinase (PI3K)/protein kinase B (Akt)/mammalian target of rapamycin (mTOR) signaling pathway contributes to prostate cancer development and progression. Here, we compared the in vitro effects of the dual PI3K/mTOR inhibitor (XL765) with those observed with the sole PI3K (XL147) or mTOR (rapamycin) inhibition in 2 non-tumor prostate epithelial cell lines, 8 prostate cancer cell lines, and 11 prostate cancer cell derivatives. We demonstrated that the XL765 treatment showed superior and proliferative effects of XL147 or rapamycin. The XL765 effects were associated to increasing the chromosome region maintenance 1 (CRM1)-mediated nuclear localization of glycogen synthase kinase 3 beta (GSK3β) and Foxo-1a with higher induction of apoptosis when compared to those observed in XL147 and rapamycin treatments. IC50 values were calculated in phosphatase and tensin homologue deleted on chromosome 10 (PTEN)-positive and PTEN-negative cell lines as well as after PTEN transfection or PTEN downmodulation by siRNA strategy revealing that the presence of this protein was associated with reduced sensitivity to PI3K and mTOR inhibitors. The comparison of IC50 values was also calculated for androgen-dependent and -independent cell lines as well as after androgen receptor (AR) transfection or the AR downmodulation by siRNA strategy revealing that androgen independence was associated with enhanced responsiveness. Our results provide a rationale to use the dual PI3K/Akt/mTOR inhibitors in hormone-insensitive prostate cancer models due to the overactivity of PI3K/Akt/mTOR in this disease condition.
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Affiliation(s)
- Giovanni Luca Gravina
- Department of Biotechnological and Applied Clinical Sciences, Laboratory of Radiobiology, University of L'Aquila, L'Aquila, Italy
- Department of Biotechnological and Applied Clinical Sciences, Division of Radiation Oncology, University of L'Aquila, L'Aquila, Italy
| | - Andrea Mancini
- Department of Biotechnological and Applied Clinical Sciences, Laboratory of Radiobiology, University of L'Aquila, L'Aquila, Italy
| | - Luca Scarsella
- Department of Biotechnological and Applied Clinical Sciences, Laboratory of Radiobiology, University of L'Aquila, L'Aquila, Italy
| | - Alessandro Colapietro
- Department of Biotechnological and Applied Clinical Sciences, Laboratory of Radiobiology, University of L'Aquila, L'Aquila, Italy
| | - Ana Jitariuc
- Department of Biotechnological and Applied Clinical Sciences, Laboratory of Radiobiology, University of L'Aquila, L'Aquila, Italy
| | - Flora Vitale
- Department of Biotechnological and Applied Clinical Sciences, Laboratory of Radiobiology, University of L'Aquila, L'Aquila, Italy
| | - Francesco Marampon
- Department of Biotechnological and Applied Clinical Sciences, Laboratory of Radiobiology, University of L'Aquila, L'Aquila, Italy
| | - Enrico Ricevuto
- Department of Biotechnological and Applied Clinical Sciences, Division of Medical Oncology, University of L'Aquila, L'Aquila, Italy
| | - Claudio Festuccia
- Department of Biotechnological and Applied Clinical Sciences, Laboratory of Radiobiology, University of L'Aquila, L'Aquila, Italy.
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Li B, Thrasher JB, Terranova P. Glycogen synthase kinase-3: a potential preventive target for prostate cancer management. Urol Oncol 2015; 33:456-63. [PMID: 26051358 DOI: 10.1016/j.urolonc.2015.05.006] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2015] [Revised: 04/30/2015] [Accepted: 05/05/2015] [Indexed: 02/06/2023]
Abstract
OBJECTIVES Prostate cancers are the frequently diagnosed cancers in men, and patients with metastatic disease only have 28% chance for 5-year survival. Patients with low-risk tumors are subjected to active surveillance, whereas high-risk cases are actively treated. Unfortunately, there is no cure for patients with late-stage disease. Glycogen synthase kinase-3 (GSK-3, α and β) is a protein serine/threonine kinase and has diverse cellular functions and numerous substrates. We sought to summarize all the studies done with GSK-3 in prostate cancers and to provide a prospective direction for future work. METHODS AND MATERIALS A comprehensive search of the literature on the electronic databases PubMed was conducted for the subject terms of GSK-3 and prostate cancer. Gene mutation and expression information was extracted from Oncomine and COSMIC databases. Case reports were not included. RESULTS Accumulating evidence indicates that GSK-3α is mainly expressed in low-risk prostate cancers and is related to hormone-dependent androgen receptor (AR)-mediated gene expression, whereas GSK-3β is mainly expressed in high-risk prostate cancers and is related to hormone-independent AR-mediated gene expression. GSK-3 has been demonstrated as a positive regulator in AR transactivation and prostate cancer growth independent of the Wnt/β-catenin pathway. Different types of GSK-3inhibitors including lithium show promising results in suppressing tumor growth in different animal models of prostate cancer. Importantly, clinical use of lithium is associated with reduced cancer incidence in psychiatric patients. CONCLUSIONS Taken together, GSK-3 inhibition might be implicated in prostate cancer management as a preventive treatment.
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Affiliation(s)
- Benyi Li
- Department of Urology, University of Kansas Medical Center, Kansas City, KS.
| | | | - Paul Terranova
- Department of Molecular and Integrative Physiology, University of Kansas Medical Center, Kansas City, KS; Department of Obstetrics and Gynecology, University of Kansas Medical Center, Kansas City, KS
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Li L, Song H, Zhong L, Yang R, Yang XQ, Jiang KL, Liu BZ. Lithium Chloride Promotes Apoptosis in Human Leukemia NB4 Cells by Inhibiting Glycogen Synthase Kinase-3 Beta. Int J Med Sci 2015; 12:805-10. [PMID: 26516309 PMCID: PMC4615241 DOI: 10.7150/ijms.12429] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2015] [Accepted: 09/02/2015] [Indexed: 01/10/2023] Open
Abstract
Acute promyelocytic leukemia (APL) is a subtype of acute myeloid leukemia (AML). With the application of all-trans retinoic acid (ATRA) and arsenic trioxide (ATO), APL becomes one of best prognosis of leukemia. However, ATRA and ATO are not effective against all APLs. Therefore, a new strategy for APL treatment is necessary. Here, we investigated whether lithium chloride (LiCl), a drug used for the treatment of mental illness, could promote apoptosis in human leukemia NB4 cells. We observed that treatment with LiCl significantly accelerated apoptosis in NB4 cells and led to cell cycle arrest at G2/M phase. Moreover, LiCl significantly increased the level of Ser9-phosphorylated glycogen synthase kinase 3β(p-GSK-3β), and decreased the level of Akt1 protein in a dose-dependent manner. In addition, LiCl inhibition of c-Myc also enhanced cell death with a concomitant increase in β-catnin. Taken together, these findings demonstrated that LiCl promoted apoptosis in NB4 cells through the Akt signaling pathway and that G2/M phase arrest was induced by increase of p-GSK-3β(S9).
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Affiliation(s)
- Liu Li
- 1. Central Laboratory of Yong-chuan hospital, Chongqing Medical University, Chongqing 402160, China. ; 2. Key Laboratory of Laboratory Medical Diagnostics, Ministry of Education, Department of Laboratory Medicine, Chong-qing Medical University, Chongqing 400016, China
| | - Hao Song
- 1. Central Laboratory of Yong-chuan hospital, Chongqing Medical University, Chongqing 402160, China
| | - Liang Zhong
- 2. Key Laboratory of Laboratory Medical Diagnostics, Ministry of Education, Department of Laboratory Medicine, Chong-qing Medical University, Chongqing 400016, China
| | - Rong Yang
- 2. Key Laboratory of Laboratory Medical Diagnostics, Ministry of Education, Department of Laboratory Medicine, Chong-qing Medical University, Chongqing 400016, China
| | - Xiao-Qun Yang
- 2. Key Laboratory of Laboratory Medical Diagnostics, Ministry of Education, Department of Laboratory Medicine, Chong-qing Medical University, Chongqing 400016, China
| | - Kai-Ling Jiang
- 2. Key Laboratory of Laboratory Medical Diagnostics, Ministry of Education, Department of Laboratory Medicine, Chong-qing Medical University, Chongqing 400016, China
| | - Bei-Zhong Liu
- 1. Central Laboratory of Yong-chuan hospital, Chongqing Medical University, Chongqing 402160, China. ; 2. Key Laboratory of Laboratory Medical Diagnostics, Ministry of Education, Department of Laboratory Medicine, Chong-qing Medical University, Chongqing 400016, China
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