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Rezaei S, Nikpanjeh N, Rezaee A, Gholami S, Hashemipour R, Biavarz N, Yousefi F, Tashakori A, Salmani F, Rajabi R, Khorrami R, Nabavi N, Ren J, Salimimoghadam S, Rashidi M, Zandieh MA, Hushmandi K, Wang Y. PI3K/Akt signaling in urological cancers: Tumorigenesis function, therapeutic potential, and therapy response regulation. Eur J Pharmacol 2023; 955:175909. [PMID: 37490949 DOI: 10.1016/j.ejphar.2023.175909] [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: 04/10/2023] [Revised: 07/01/2023] [Accepted: 07/11/2023] [Indexed: 07/27/2023]
Abstract
In addition to environmental conditions, lifestyle factors, and chemical exposure, aberrant gene expression and mutations involve in the beginning and development of urological tumors. Even in Western nations, urological malignancies are among the top causes of patient death, and their prevalence appears to be gender dependent. The prognosis for individuals with urological malignancies remains dismal and unfavorable due to the ineffectiveness of conventional treatment methods. PI3K/Akt is a popular biochemical mechanism that is activated in tumor cells as a result of PTEN loss. PI3K/Akt escalates growth and metastasis. Moreover, due to the increase in tumor cell viability caused by PI3K/Akt activation, cancer cells may acquire resistance to treatment. This review article examines the function of PI3K/Akt in major urological tumors including bladder, prostate, and renal tumors. In prostate, bladder, and kidney tumors, the level of PI3K and Akt are notably elevated. In addition, the activation of PI3K/Akt enhances the levels of Bcl-2 and XIAP, hence increasing the tumor cell survival rate. PI3K/Akt ] upregulates EMT pathways and matrix metalloproteinase expression to increase urological cancer metastasis. Furthermore, stimulation of PI3K/Akt results in drug- and radio-resistant cancers, but its suppression by anti-tumor drugs impedes the tumorigenesis.
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Affiliation(s)
- Sahar Rezaei
- Faculty of Veterinary Medicine, Islamic Azad University, Science and Research Branch, Tehran, Iran
| | - Negin Nikpanjeh
- Faculty of Veterinary Medicine, Islamic Azad University, Science and Research Branch, Tehran, Iran
| | - Aryan Rezaee
- Iran University of Medical Sciences, Tehran, Iran
| | - Sarah Gholami
- Young Researcher and Elite Club, Islamic Azad University, Babol Branch, Babol, Iran
| | - Reza Hashemipour
- Faculty of Veterinary Medicine, Islamic Azad University, Karaj Branch, Karaj, Iran
| | - Negin Biavarz
- Faculty of Veterinary Medicine, Islamic Azad University, Science and Research Branch, Tehran, Iran
| | - Farnaz Yousefi
- Department of Clinical Science, Faculty of Veterinary Medicine, Islamic Azad University, Science and Research Branch, Tehran, Iran
| | - Ali Tashakori
- Faculty of Veterinary Medicine, Islamic Azad University, Science and Research Branch, Tehran, Iran
| | - Farshid Salmani
- Faculty of Veterinary Medicine, Islamic Azad University, Science and Research Branch, Tehran, Iran
| | - Romina Rajabi
- Faculty of Veterinary Medicine, Islamic Azad University, Science and Research Branch, Tehran, Iran
| | - Ramin Khorrami
- Department of Food Hygiene and Quality Control, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - Noushin Nabavi
- Department of Urologic Sciences and Vancouver Prostate Centre, University of British Columbia, V6H3Z6, Vancouver, BC, Canada
| | - Jun Ren
- Shanghai Institute of Cardiovascular Diseases, Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai, 200032, China
| | - Shokooh Salimimoghadam
- Department of Biochemistry and Molecular Biology, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - Mohsen Rashidi
- Department Pharmacology, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran; The Health of Plant and Livestock Products Research Center, Mazandaran University of Medical Sciences, Sari, Iran.
| | - Mohammad Arad Zandieh
- Department of Food Hygiene and Quality Control, Division of Epidemiology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran.
| | - Kiavash Hushmandi
- Department of Food Hygiene and Quality Control, Division of Epidemiology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran.
| | - Yuzhuo Wang
- Department of Urologic Sciences and Vancouver Prostate Centre, University of British Columbia, V6H3Z6, Vancouver, BC, Canada.
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2
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McGrail K, Granado-Martínez P, Esteve-Puig R, García-Ortega S, Ding Y, Sánchez-Redondo S, Ferrer B, Hernandez-Losa J, Canals F, Manzano A, Navarro-Sabaté A, Bartrons R, Yanes O, Pérez-Alea M, Muñoz-Couselo E, Garcia-Patos V, Recio JA. BRAF activation by metabolic stress promotes glycolysis sensitizing NRAS Q61-mutated melanomas to targeted therapy. Nat Commun 2022; 13:7113. [PMID: 36402789 PMCID: PMC9675737 DOI: 10.1038/s41467-022-34907-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2021] [Accepted: 11/08/2022] [Indexed: 11/21/2022] Open
Abstract
NRAS-mutated melanoma lacks a specific line of treatment. Metabolic reprogramming is considered a novel target to control cancer; however, NRAS-oncogene contribution to this cancer hallmark is mostly unknown. Here, we show that NRASQ61-mutated melanomas specific metabolic settings mediate cell sensitivity to sorafenib upon metabolic stress. Mechanistically, these cells are dependent on glucose metabolism, in which glucose deprivation promotes a switch from CRAF to BRAF signaling. This scenario contributes to cell survival and sustains glucose metabolism through BRAF-mediated phosphorylation of 6-phosphofructo-2-kinase/fructose-2,6-bisphosphatase-2/3 (PFKFB2/PFKFB3). In turn, this favors the allosteric activation of phosphofructokinase-1 (PFK1), generating a feedback loop that couples glycolytic flux and the RAS signaling pathway. An in vivo treatment of NRASQ61 mutant melanomas, including patient-derived xenografts, with 2-deoxy-D-glucose (2-DG) and sorafenib effectively inhibits tumor growth. Thus, we provide evidence for NRAS-oncogene contributions to metabolic rewiring and a proof-of-principle for the treatment of NRASQ61-mutated melanoma combining metabolic stress (glycolysis inhibitors) and previously approved drugs, such as sorafenib.
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Affiliation(s)
- Kimberley McGrail
- grid.430994.30000 0004 1763 0287Biomedical Research in Melanoma-Animal Models and Cancer Laboratory, Vall d’Hebron Research Institute (VHIR), Vall d’Hebron Hospital Barcelona-UAB, Barcelona, 08035 Spain
| | - Paula Granado-Martínez
- grid.430994.30000 0004 1763 0287Biomedical Research in Melanoma-Animal Models and Cancer Laboratory, Vall d’Hebron Research Institute (VHIR), Vall d’Hebron Hospital Barcelona-UAB, Barcelona, 08035 Spain
| | - Rosaura Esteve-Puig
- grid.430994.30000 0004 1763 0287Biomedical Research in Melanoma-Animal Models and Cancer Laboratory, Vall d’Hebron Research Institute (VHIR), Vall d’Hebron Hospital Barcelona-UAB, Barcelona, 08035 Spain ,Present Address: MAJ3 Capital S.L, Barcelona, 08018 Spain
| | - Sara García-Ortega
- grid.430994.30000 0004 1763 0287Biomedical Research in Melanoma-Animal Models and Cancer Laboratory, Vall d’Hebron Research Institute (VHIR), Vall d’Hebron Hospital Barcelona-UAB, Barcelona, 08035 Spain
| | - Yuxin Ding
- grid.430994.30000 0004 1763 0287Biomedical Research in Melanoma-Animal Models and Cancer Laboratory, Vall d’Hebron Research Institute (VHIR), Vall d’Hebron Hospital Barcelona-UAB, Barcelona, 08035 Spain
| | - Sara Sánchez-Redondo
- grid.430994.30000 0004 1763 0287Biomedical Research in Melanoma-Animal Models and Cancer Laboratory, Vall d’Hebron Research Institute (VHIR), Vall d’Hebron Hospital Barcelona-UAB, Barcelona, 08035 Spain ,grid.7719.80000 0000 8700 1153Present Address: Microenvironment & Metastasis Group, Molecular Oncology Program, Spanish National Cancer Research Centre (CNIO), Madrid, Spain
| | - Berta Ferrer
- grid.430994.30000 0004 1763 0287Biomedical Research in Melanoma-Animal Models and Cancer Laboratory, Vall d’Hebron Research Institute (VHIR), Vall d’Hebron Hospital Barcelona-UAB, Barcelona, 08035 Spain ,grid.411083.f0000 0001 0675 8654Anatomy Pathology Department, Vall d’Hebron Hospital Barcelona-UAB, Barcelona, 08035 Spain
| | - Javier Hernandez-Losa
- grid.411083.f0000 0001 0675 8654Anatomy Pathology Department, Vall d’Hebron Hospital Barcelona-UAB, Barcelona, 08035 Spain
| | - Francesc Canals
- grid.411083.f0000 0001 0675 8654Proteomics Laboratory, Vall d’Hebron Institute of Oncology (VHIO), Barcelona, 08035 Spain
| | - Anna Manzano
- grid.418284.30000 0004 0427 2257Department of Physiological Sciences, University of Barcelona, Bellvitge Biomedical Research Institute, Barcelona, Spain
| | - Aura Navarro-Sabaté
- grid.418284.30000 0004 0427 2257Department of Physiological Sciences, University of Barcelona, Bellvitge Biomedical Research Institute, Barcelona, Spain
| | - Ramón Bartrons
- grid.418284.30000 0004 0427 2257Department of Physiological Sciences, University of Barcelona, Bellvitge Biomedical Research Institute, Barcelona, Spain
| | - Oscar Yanes
- grid.410367.70000 0001 2284 9230Universitat Rovira i Virgili, Department of Electronic Engineering, IISPV, Tarragona, Spain ,grid.413448.e0000 0000 9314 1427CIBER on Diabetes and Associated Metabolic Diseases (CIBERDEM), Instituto de Salud Carlos III, Madrid, Spain
| | - Mileidys Pérez-Alea
- grid.430994.30000 0004 1763 0287Biomedical Research in Melanoma-Animal Models and Cancer Laboratory, Vall d’Hebron Research Institute (VHIR), Vall d’Hebron Hospital Barcelona-UAB, Barcelona, 08035 Spain ,Present Address: Advance Biodesign, 69800 Saint-Priest, France
| | - Eva Muñoz-Couselo
- grid.430994.30000 0004 1763 0287Biomedical Research in Melanoma-Animal Models and Cancer Laboratory, Vall d’Hebron Research Institute (VHIR), Vall d’Hebron Hospital Barcelona-UAB, Barcelona, 08035 Spain ,grid.411083.f0000 0001 0675 8654Clinical Oncology Program, Vall d’Hebron Institute of Oncology (VHIO), Vall d’Hebron Hospital Barcelona-UAB, Barcelona, 08035 Spain
| | - Vicenç Garcia-Patos
- grid.430994.30000 0004 1763 0287Biomedical Research in Melanoma-Animal Models and Cancer Laboratory, Vall d’Hebron Research Institute (VHIR), Vall d’Hebron Hospital Barcelona-UAB, Barcelona, 08035 Spain ,grid.411083.f0000 0001 0675 8654Dermatology Department, Vall d’Hebron Hospital Barcelona-UAB, Barcelona, 08035 Spain
| | - Juan A. Recio
- grid.430994.30000 0004 1763 0287Biomedical Research in Melanoma-Animal Models and Cancer Laboratory, Vall d’Hebron Research Institute (VHIR), Vall d’Hebron Hospital Barcelona-UAB, Barcelona, 08035 Spain
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Noori T, Sahebgharani M, Sureda A, Sobarzo-Sanchez E, Fakhri S, Shirooie S. Targeting PI3K by Natural Products: A Potential Therapeutic Strategy for Attention-deficit Hyperactivity Disorder. Curr Neuropharmacol 2022; 20:1564-1578. [PMID: 35043762 PMCID: PMC9881086 DOI: 10.2174/1570159x20666220119125040] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 01/02/2022] [Accepted: 01/12/2022] [Indexed: 11/22/2022] Open
Abstract
Attention-Deficit Hyperactivity Disorder (ADHD) is a highly prevalent childhood psychiatric disorder. In general, a child with ADHD has significant attention problems with difficulty concentrating on a subject and is generally associated with impulsivity and excessive activity. The etiology of ADHD in most patients is unknown, although it is considered to be a multifactorial disease caused by a combination of genetics and environmental factors. Diverse factors, such as the existence of mental, nutritional, or general health problems during childhood, as well as smoking and alcohol drinking during pregnancy, are related to an increased risk of ADHD. Behavioral and psychological characteristics of ADHD include anxiety, mood disorders, behavioral disorders, language disorders, and learning disabilities. These symptoms affect individuals, families, and communities, negatively altering educational and social results, strained parent-child relationships, and increased use of health services. ADHD may be associated with deficits in inhibitory frontostriatal noradrenergic neurons on lower striatal structures that are predominantly driven by dopaminergic neurons. Phosphoinositide 3-kinases (PI3Ks) are a conserved family of lipid kinases that control a number of cellular processes, including cell proliferation, differentiation, migration, insulin metabolism, and apoptosis. Since PI3K plays an important role in controlling the noradrenergic neuron, it opens up new insights into research on ADHD and other developmental brain diseases. This review presents evidence for the potential usefulness of PI3K and its modulators as a potential treatment for ADHD.
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Affiliation(s)
- Tayebeh Noori
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Mousa Sahebgharani
- Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Antoni Sureda
- Research Group on Community Nutrition and Oxidative Stress (NUCOX) and Health Research Institute of Balearic Islands (IdISBa), University of Balearic Islands-IUNICS, Palma de MallorcaE-07122, Balearic Islands, Spain;,CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII), 28029 Madrid, Spain
| | - Eduardo Sobarzo-Sanchez
- Instituto de Investigación y Postgrado, Facultad de Ciencias de la Salud, Universidad Central de Chile, Chile;,Department of Organic Chemistry, Faculty of Pharmacy, University of Santiago de Compostela, Santiago, Spain
| | - Sajad Fakhri
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Samira Shirooie
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran;,Address correspondence to this author at the Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran; E-mail:
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4
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Wu PK, Hong SK, Chen W, Becker AE, Gundry RL, Lin CW, Shao H, Gestwicki JE, Park JI. Mortalin (HSPA9) facilitates BRAF-mutant tumor cell survival by suppressing ANT3-mediated mitochondrial membrane permeability. Sci Signal 2020; 13:13/622/eaay1478. [PMID: 32156782 DOI: 10.1126/scisignal.aay1478] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Mortalin [also known as heat shock protein family A (HSP70) member 9 (HSPA9) or glucose-regulated protein 75 (GRP75)] is a mitochondrial molecular chaperone that is often up-regulated and mislocalized in tumors with abnormal activation of the kinases MEK and ERK. Here, we found that mortalin depletion was selectively lethal to tumor and immortalized normal cells expressing the mutant kinase B-RafV600E or the chimeric protein ΔRaf-1:ER and that MEK-ERK-sensitive regulation of the peptide-binding domain in mortalin was critical to cell survival or death. Proteomics screening identified adenine nucleotide translocase 3 (ANT3) as a previously unknown mortalin substrate and cell survival/death effector. Mechanistically, increased MEK-ERK signaling activity and mortalin function converged opposingly on the regulation of mitochondrial permeability. Specifically, whereas MEK-ERK activity increased mitochondrial permeability by promoting the interaction between ANT3 and the peptidyl-prolyl isomerase cyclophilin D (CypD), mortalin decreased mitochondrial permeability by inhibiting this interaction. Hence, mortalin depletion increased mitochondrial permeability in MEK-ERK-deregulated cells to an extent that triggered cell death. HSP70 inhibitor derivatives that effectively inhibited mortalin suppressed the proliferation of B-RafV600E tumor cells in culture and in vivo, including their B-Raf inhibitor-resistant progenies. These findings suggest that targeting mortalin has potential as a selective therapeutic strategy in B-Raf-mutant or MEK-ERK-driven tumors.
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Affiliation(s)
- Pui-Kei Wu
- Department of Biochemistry, Medical College of Wisconsin, Milwaukee, WI 53226, USA
| | - Seung-Keun Hong
- Department of Biochemistry, Medical College of Wisconsin, Milwaukee, WI 53226, USA
| | - Wenjing Chen
- Department of Biochemistry, Medical College of Wisconsin, Milwaukee, WI 53226, USA
| | - Andrew E Becker
- Department of Biochemistry, Medical College of Wisconsin, Milwaukee, WI 53226, USA
| | - Rebekah L Gundry
- Department of Biochemistry, Medical College of Wisconsin, Milwaukee, WI 53226, USA.,Center for Biomedical Mass Spectrometry Research, Medical College of Wisconsin, Milwaukee, WI 53226, USA
| | - Chien-Wei Lin
- Division of Biostatistics, Medical College of Wisconsin, Milwaukee, WI 53226, USA
| | - Hao Shao
- Department of Pharmaceutical Chemistry, University of California, San Francisco, San Francisco, CA 94158, USA
| | - Jason E Gestwicki
- Department of Pharmaceutical Chemistry, University of California, San Francisco, San Francisco, CA 94158, USA
| | - Jong-In Park
- Department of Biochemistry, Medical College of Wisconsin, Milwaukee, WI 53226, USA.
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5
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Wang X, Fang Y, Sun W, Xu Z, Zhang Y, Wei X, Ding X, Xu Y. Endocrinotherapy resistance of prostate and breast cancer: Importance of the NF‑κB pathway (Review). Int J Oncol 2020; 56:1064-1074. [PMID: 32319568 DOI: 10.3892/ijo.2020.4990] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Accepted: 01/24/2020] [Indexed: 12/24/2022] Open
Abstract
Prostate cancer (PCa) and breast cancer (BCa) are two common sex hormone‑related cancer types with high rates of morbidity, and are leading causes of cancer death globally in men and women, respectively. The biological function of androgen or estrogen is a key factor for PCa or BCa tumorigenesis, respectively. Nevertheless, after hormone deprivation therapy, the majority of patients ultimately develop hormone‑independent malignancies that are resistant to endocrinotherapy. It is widely recognized, therefore, that understanding of the mechanisms underlying the process from hormone dependence towards hormone independence is critical to discover molecular targets for the control of advanced PCa and BCa. This review aimed to dissect the important mechanisms involved in the therapeutic resistance of PCa and BCa. It was concluded that activation of the NF‑κB pathway is an important common mechanism for metastasis and therapeutic resistance of the two types of cancer; in particular, the RelB‑activated noncanonical NF‑κB pathway appears to be able to lengthen and strengthen NF‑κB activity, which has been a focus of recent investigations.
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Affiliation(s)
- Xiumei Wang
- Jiangsu Cancer Hospital and Jiangsu Institute of Cancer Research, and Nanjing Medical University Affiliated Cancer Hospital, Nanjing, Jiangsu 210009, P.R. China
| | - Yao Fang
- Jiangsu Cancer Hospital and Jiangsu Institute of Cancer Research, and Nanjing Medical University Affiliated Cancer Hospital, Nanjing, Jiangsu 210009, P.R. China
| | - Wenbo Sun
- Jiangsu Cancer Hospital and Jiangsu Institute of Cancer Research, and Nanjing Medical University Affiliated Cancer Hospital, Nanjing, Jiangsu 210009, P.R. China
| | - Zhi Xu
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Nanjing Medical University, Nanjing, Jiangsu 211166, P.R. China
| | - Yanyan Zhang
- Jiangsu Cancer Hospital and Jiangsu Institute of Cancer Research, and Nanjing Medical University Affiliated Cancer Hospital, Nanjing, Jiangsu 210009, P.R. China
| | - Xiaowei Wei
- Department of Oncology, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu 210006, P.R. China
| | - Xuansheng Ding
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu 211198, P.R. China
| | - Yong Xu
- Jiangsu Cancer Hospital and Jiangsu Institute of Cancer Research, and Nanjing Medical University Affiliated Cancer Hospital, Nanjing, Jiangsu 210009, P.R. China
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6
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Madhunapantula SV, Robertson GP. Targeting protein kinase-b3 (akt3) signaling in melanoma. Expert Opin Ther Targets 2017; 21:273-290. [PMID: 28064546 DOI: 10.1080/14728222.2017.1279147] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
INTRODUCTION Deregulated Akt activity leading to apoptosis inhibition, enhanced proliferation and drug resistance has been shown to be responsible for 35-70% of advanced metastatic melanomas. Of the three isoforms, the majority of melanomas have elevated Akt3 expression and activity. Hence, potent inhibitors targeting Akt are urgently required, which is possible only if (a) the factors responsible for the failure of Akt inhibitors in clinical trials is known; and (b) the information pertaining to synergistically acting targeted therapeutics is available. Areas covered: This review provides a brief introduction of the PI3K-Akt signaling pathway and its role in melanoma development. In addition, the functional role of key Akt pathway members such as PRAS40, GSK3 kinases, WEE1 kinase in melanoma development are discussed together with strategies to modulate these targets. Efficacy and safety of Akt inhibitors is also discussed. Finally, the mechanism(s) through which Akt leads to drug resistance is discussed in this expert opinion review. Expert opinion: Even though Akt play key roles in melanoma tumor progression, cell survival and drug resistance, many gaps still exist that require further understanding of Akt functions, especially in the (a) metastatic spread; (b) circulating melanoma cells survival; and
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Affiliation(s)
- SubbaRao V Madhunapantula
- a Center of Excellence in Molecular Biology and Regenerative Medicine (CEMR), Department of Biochemistry , JSS Medical College, Jagadguru Sri Shivarathreeshwara University (Accredited 'A' Grade by NAAC and Ranked 35 by National Institutional Ranking Framework (NIRF)-2015, Ministry of Human Resource Development, Government of India) , Mysuru , India
| | - Gavin P Robertson
- b Department of Pharmacology , The Pennsylvania State University College of Medicine , Hershey , PA , USA.,c Department of Pathology , The Pennsylvania State University College of Medicine , Hershey , PA , USA.,d Department of Dermatology , The Pennsylvania State University College of Medicine , Hershey , PA , USA.,e Department of Surgery , The Pennsylvania State University College of Medicine , Hershey , PA , USA.,f The Melanoma Center , The Pennsylvania State University College of Medicine , Hershey , PA , USA.,g The Melanoma Therapeutics Program , The Pennsylvania State University College of Medicine , Hershey , PA , USA
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7
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Pin E, Stratton S, Belluco C, Liotta L, Nagle R, Hodge KA, Deng J, Dong T, Baldelli E, Petricoin E, Pierobon M. A pilot study exploring the molecular architecture of the tumor microenvironment in human prostate cancer using laser capture microdissection and reverse phase protein microarray. Mol Oncol 2016; 10:1585-1594. [PMID: 27825696 DOI: 10.1016/j.molonc.2016.09.007] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Revised: 09/24/2016] [Accepted: 09/28/2016] [Indexed: 12/24/2022] Open
Abstract
The cross-talk between tumor epithelium and surrounding stromal/immune microenvironment is essential to sustain tumor growth and progression and provides new opportunities for the development of targeted treatments focused on disrupting the tumor ecology. Identification of novel approaches to study these interactions is of primary importance. Using laser capture microdissection (LCM) coupled with reverse phase protein microarray (RPPA) based protein signaling activation mapping we explored the molecular interconnection between tumor epithelium and surrounding stromal microenvironment in 18 prostate cancer (PCa) specimens. Four specimen-matched cellular compartments (normal-appearing epithelium and its adjacent stroma, and malignant epithelium and its adjacent stroma) were isolated for each case. The signaling network analysis of the four compartments unraveled a number of molecular mechanisms underlying the communication between tumor cells and stroma in the context of the tumor microenvironment. In particular, differential expression of inflammatory mediators like IL-8 and IL-10 by the stroma cells appeared to modulate specific cross-talks between the tumor cells and surrounding microenvironment.
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Affiliation(s)
- Elisa Pin
- Center for Applied Proteomics and Molecular Medicine, George Mason University, Manassas, VA, USA; Division of Experimental Oncology 2, CRO-IRCCS, National Cancer Institute, Aviano, Italy
| | - Steven Stratton
- Division of Cancer Prevention and Control, University of Arizona Cancer Center, Tucson, AZ, USA
| | - Claudio Belluco
- Department of Surgical Oncology, CRO-IRCCS, National Cancer Institute, Aviano, Italy
| | - Lance Liotta
- Center for Applied Proteomics and Molecular Medicine, George Mason University, Manassas, VA, USA
| | - Ray Nagle
- Division of Cancer Prevention and Control, University of Arizona Cancer Center, Tucson, AZ, USA
| | - K Alex Hodge
- Center for Applied Proteomics and Molecular Medicine, George Mason University, Manassas, VA, USA
| | - Jianghong Deng
- Center for Applied Proteomics and Molecular Medicine, George Mason University, Manassas, VA, USA
| | - Ting Dong
- Center for Applied Proteomics and Molecular Medicine, George Mason University, Manassas, VA, USA
| | - Elisa Baldelli
- Center for Applied Proteomics and Molecular Medicine, George Mason University, Manassas, VA, USA
| | - Emanuel Petricoin
- Center for Applied Proteomics and Molecular Medicine, George Mason University, Manassas, VA, USA
| | - Mariaelena Pierobon
- Center for Applied Proteomics and Molecular Medicine, George Mason University, Manassas, VA, USA.
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8
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Lin HP, Lin CY, Huo C, Jan YJ, Tseng JC, Jiang SS, Kuo YY, Chen SC, Wang CT, Chan TM, Liou JY, Wang J, Chang WSW, Chang CH, Kung HJ, Chuu CP. AKT3 promotes prostate cancer proliferation cells through regulation of Akt, B-Raf, and TSC1/TSC2. Oncotarget 2016; 6:27097-112. [PMID: 26318033 PMCID: PMC4694976 DOI: 10.18632/oncotarget.4553] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2015] [Accepted: 06/29/2015] [Indexed: 01/09/2023] Open
Abstract
The qRT-PCR analysis of 139 clinical samples and analysis of 150 on-line database clinical samples indicated that AKT3 mRNA expression level was elevated in primary prostate tumors. Immunohistochemical staining of 65 clinical samples revealed that AKT3 protein expression was higher in prostate tumors of stage I, II, III as compared to nearby normal tissues. Plasmid overexpression of AKT3 promoted cell proliferation of LNCaP, PC-3, DU-145, and CA-HPV-10 human prostate cancer (PCa) cells, while knockdown of AKT3 by siRNA reduced cell proliferation. Overexpression of AKT3 increased the protein expression of total AKT, phospho-AKT S473, phospho-AKT T308, B-Raf, c-Myc, Skp2, cyclin E, GSK3β, phospho-GSK3β S9, phospho-mTOR S2448, and phospho-p70S6K T421/S424, but decreased TSC1 (tuberous sclerosis 1) and TSC2 (tuberous Sclerosis Complex 2) proteins in PC-3 PCa cells. Overexpression of AKT3 also increased protein abundance of phospho-AKT S473, phospho-AKT T308, and B-Raf but decreased expression of TSC1 and TSC2 proteins in LNCaP, DU-145, and CA-HPV-10 PCa cells. Oncomine datasets analysis suggested that AKT3 mRNA level was positively correlated to BRAF. Knockdown of AKT3 in DU-145 cells with siRNA increased the sensitivity of DU-145 cells to B-Raf inhibitor treatment. Knockdown of TSC1 or TSC2 promoted the proliferation of PCa cells. Our observations implied that AKT3 may be a potential therapeutic target for PCa treatment.
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Affiliation(s)
- Hui-Ping Lin
- National Institute of Cancer Research, National Health Research Institutes, Miaoli County, Taiwan
| | - Ching-Yu Lin
- Institute of Cellular and System Medicine, National Health Research Institutes, Miaoli County, Taiwan
| | - Chieh Huo
- Institute of Cellular and System Medicine, National Health Research Institutes, Miaoli County, Taiwan.,Department of Life Sciences, National Central University, Taiwan
| | - Yee-Jee Jan
- Department of Pathology and Laboratory Medicine, Taichung Veterans General Hospital, Taichung City, Taiwan.,Medical College of Chung Shan Medical University, Taichung City, Taiwan
| | - Jen-Chih Tseng
- Institute of Cellular and System Medicine, National Health Research Institutes, Miaoli County, Taiwan.,Institute of Molecular and Cellular Biology, National Tsing Hua University, Hsinchu, Taiwan
| | - Shih Sheng Jiang
- National Institute of Cancer Research, National Health Research Institutes, Miaoli County, Taiwan
| | - Ying-Yu Kuo
- Institute of Cellular and System Medicine, National Health Research Institutes, Miaoli County, Taiwan
| | - Shyh-Chang Chen
- Department of Pathology and Laboratory Medicine, Taichung Veterans General Hospital, Taichung City, Taiwan
| | - Chih-Ting Wang
- National Institute of Cancer Research, National Health Research Institutes, Miaoli County, Taiwan
| | - Tzu-Min Chan
- Department of Medical Education and Research, China Medical University Beigan Hospital, Yunlin, Taiwan
| | - Jun-Yang Liou
- Institute of Cellular and System Medicine, National Health Research Institutes, Miaoli County, Taiwan
| | - John Wang
- Department of Pathology and Laboratory Medicine, Taichung Veterans General Hospital, Taichung City, Taiwan
| | - Wun-Shaing Wayne Chang
- National Institute of Cancer Research, National Health Research Institutes, Miaoli County, Taiwan
| | - Chung-Ho Chang
- Institute of Cellular and System Medicine, National Health Research Institutes, Miaoli County, Taiwan
| | - Hsing-Jien Kung
- National Institute of Cancer Research, National Health Research Institutes, Miaoli County, Taiwan.,Institute of Molecular and Genomic Medicine, National Health Research Institutes, Miaoli County, Taiwan
| | - Chih-Pin Chuu
- Institute of Cellular and System Medicine, National Health Research Institutes, Miaoli County, Taiwan.,Graduate Institute of Basic Medical Science, China Medical University, Taichung City, Taiwan.,Graduate Program for Aging, China Medical University, Taichung City, Taiwan.,Ph.D. Program in Tissue Engineering and Regenerative Medicine, National Chung Hsing University, Taichung City, Taiwan.,Ph.D. program in Environmental and Occupational Medicine, Kaohsiung Medical University, Kaohsiung City, Taiwan
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9
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Asati V, Mahapatra DK, Bharti SK. PI3K/Akt/mTOR and Ras/Raf/MEK/ERK signaling pathways inhibitors as anticancer agents: Structural and pharmacological perspectives. Eur J Med Chem 2016; 109:314-41. [PMID: 26807863 DOI: 10.1016/j.ejmech.2016.01.012] [Citation(s) in RCA: 383] [Impact Index Per Article: 47.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2014] [Revised: 01/08/2016] [Accepted: 01/09/2016] [Indexed: 12/17/2022]
Abstract
The protein kinases regulate cellular functions such as transcription, translation, proliferation, growth and survival by the process of phosphorylation. Over activation of signaling pathways play a major role in oncogenesis. The PI3K signaling pathway is dysregulated almost in all cancers due to the amplification, genetic mutation of PI3K gene and the components of the PI3K pathway themselves. Stimulation of the PI3K/Akt/mTOR and Ras/Raf/MEK/ERK pathways enhances growth, survival, and metabolism of cancer cells. Recently, the PI3K/Akt/mTOR and Ras/Raf/MEK/ERK signaling pathways have been identified as promising therapeutic targets for cancer therapy. The kinase inhibitors with enhanced specificity and improved pharmacokinetics have been considered for design and development of anticancer agents. This review focuses primarily on the Ras/Raf/MEK/ERK and PI3K/Akt/mTOR signaling pathways as therapeutic targets of anticancer drugs, their specific and dual inhibitors, structure activity relationships (SARs) and inhibitors under clinical trials.
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Affiliation(s)
- Vivek Asati
- Institute of Pharmaceutical Sciences, Guru Ghasidas Vishwavidyalaya (A Central University), Bilaspur 495009, Chhattisgarh, India
| | - Debarshi Kar Mahapatra
- Institute of Pharmaceutical Sciences, Guru Ghasidas Vishwavidyalaya (A Central University), Bilaspur 495009, Chhattisgarh, India
| | - Sanjay Kumar Bharti
- Institute of Pharmaceutical Sciences, Guru Ghasidas Vishwavidyalaya (A Central University), Bilaspur 495009, Chhattisgarh, India.
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10
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Rybak AP, Bristow RG, Kapoor A. Prostate cancer stem cells: deciphering the origins and pathways involved in prostate tumorigenesis and aggression. Oncotarget 2015; 6:1900-19. [PMID: 25595909 PMCID: PMC4385825 DOI: 10.18632/oncotarget.2953] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2015] [Accepted: 12/09/2015] [Indexed: 12/18/2022] Open
Abstract
The cells of the prostate gland are dependent on cell signaling pathways to regulate their growth, maintenance and function. However, perturbations in key signaling pathways, resulting in neoplastic transformation of cells in the prostate epithelium, are likely to generate subtypes of prostate cancer which may subsequently require different treatment regimes. Accumulating evidence supports multiple sources of stem cells in the prostate epithelium with distinct cellular origins for prostate tumorigenesis documented in animal models, while human prostate cancer stem-like cells (PCSCs) are typically enriched by cell culture, surface marker expression and functional activity assays. As future therapies will require a deeper understanding of its cellular origins as well as the pathways that drive PCSC maintenance and tumorigenesis, we review the molecular and functional evidence supporting dysregulation of PI3K/AKT, RAS/MAPK and STAT3 signaling in PCSCs, the development of castration resistance, and as a novel treatment approach for individual men with prostate cancer.
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Affiliation(s)
- Adrian P Rybak
- McMaster Institute of Urology, Division of Urology, Department of Surgery, McMaster University, ON, Canada.,St. Joseph's Hospital, Hamilton, ON, Canada
| | - Robert G Bristow
- Princess Margaret Cancer Centre (University Health Network), ON, Canada.,Departments of Radiation Oncology and Medical Biophysics, University of Toronto, Toronto, ON, Canada
| | - Anil Kapoor
- McMaster Institute of Urology, Division of Urology, Department of Surgery, McMaster University, ON, Canada.,St. Joseph's Hospital, Hamilton, ON, Canada
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11
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Zhang W, Meng Y, Liu N, Wen XF, Yang T. Insights into Chemoresistance of Prostate Cancer. Int J Biol Sci 2015; 11:1160-70. [PMID: 26327810 PMCID: PMC4551752 DOI: 10.7150/ijbs.11439] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2014] [Accepted: 06/29/2015] [Indexed: 12/17/2022] Open
Abstract
Prostate cancer (PCa) remains the most prevalent malignancy among males in the western world. Though hormonal therapies through chemical or surgical castration have been proposed many years ago, heretofore, such mainstay for the treatment on advanced PCa has not fundamentally changed. These therapeutic responses are temporary and most cases will eventually undergo PCa recurrence and metastasis, or even progress to castration-resistant prostate cancer (CRPC) due to persistent development of drug resistance. Prostate cancer stem cells (PCSCs) are a small population of cells, which possess unlimited self-renewal capacities, and can regenerate tumorigenic progenies, and play an essential role in PCa therapy resistance, metastasis and recurrence. Nowadays advanced progresses have been made in understanding of PCSC properties, roles of androgen receptor signaling and ATP-binding cassette sub-family G member 2 (ABCG2), as well as roles of genomic non-coding microRNAs and key signaling pathways, which have led to the development of novel therapies which are active against chemoresistant PCa and CRPC. Based on these progresses, this review is dedicated to address mechanisms underlying PCa chemoresistance, unveil crosstalks among pivotal signaling pathways, explore novel biotherapeutic agents, and elaborate functional properties and specific roles of chemoresistant PCSCs, which may act as a promising target for novel therapies against chemoresistant PCa.
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Affiliation(s)
- Wei Zhang
- 1. Department of Pharmacology, School of Basic Medicine, Hebei University of Chinese Medicine, Shijiazhuang 050200, China
| | - Yan Meng
- 2. Research Center for Translational Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai 200120, China
| | - Na Liu
- 3. Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai 200120, China
| | - Xiao-Fei Wen
- 4. Department of Urology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai 200120, China
| | - Tao Yang
- 2. Research Center for Translational Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai 200120, China
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12
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ERK1/2 can feedback-regulate cellular MEK1/2 levels. Cell Signal 2015; 27:1939-48. [PMID: 26163823 DOI: 10.1016/j.cellsig.2015.07.003] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2015] [Revised: 06/30/2015] [Accepted: 07/07/2015] [Indexed: 12/11/2022]
Abstract
Signal transduction of the Raf/MEK/ERK pathway is regulated by various feedback mechanisms. Given the greater molar ratio between Raf-MEK than between MEK-ERK in cells, it may be possible that MEK1/2 levels are regulated to modulate Raf/MEK/ERK activity upon pathway stimulation. Nevertheless, it has not been reported whether MEK1/2 expression can be subject to a feedback regulation. Here, we report that the Raf/MEK/ERK pathway can feedback-regulate cellular MEK1 and MEK2 levels. In different cell types, ΔRaf-1:ER- or B-Raf(V600E)-mediated MEK/ERK activation increased MEK1 but decreased MEK2 levels. These regulations were abrogated by ERK1/2 knockdown mediated by RNA interference, suggesting the presence of a feedback mechanism that regulates MEK1/2 levels. Subsequently, analyses using qPCR and luciferase reporters of the DNA promoter and 3' untranslated region revealed that the feedback MEK1 upregulation was in part attributed to increased transcription. However, the feedback MEK2 downregulation was only observed at protein levels, which was blocked by the proteasome inhibitors, MG132 and bortezomib, suggesting that the MEK2 regulation is mediated at a post-translational level. These results suggest that the Raf/MEK/ERK pathway can feedback-regulate cellular levels of MEK1 and MEK2, wherein MEK1 levels are upregulated at transcriptional level whereas MEK2 levels are downregulated at posttranslational level.
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13
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The hippo pathway effector YAP regulates motility, invasion, and castration-resistant growth of prostate cancer cells. Mol Cell Biol 2015; 35:1350-62. [PMID: 25645929 DOI: 10.1128/mcb.00102-15] [Citation(s) in RCA: 119] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Yes-associated protein (YAP) is an effector of the Hippo tumor suppressor pathway. The functional significance of YAP in prostate cancer has remained elusive. In this study, we first show that enhanced expression of YAP is able to transform immortalized prostate epithelial cells and promote migration and invasion in both immortalized and cancerous prostate cells. We found that YAP mRNA was upregulated in androgen-insensitive prostate cancer cells (LNCaP-C81 and LNCaP-C4-2 cells) compared to the level in androgen-sensitive LNCaP cells. Importantly, ectopic expression of YAP activated androgen receptor signaling and was sufficient to promote LNCaP cells from an androgen-sensitive state to an androgen-insensitive state in vitro, and YAP conferred castration resistance in vivo. Accordingly, YAP knockdown greatly reduced the rates of migration and invasion of LNCaP-C4-2 cells and under androgen deprivation conditions largely blocked cell division in LNCaP-C4-2 cells. Mechanistically, we found that extracellular signal-regulated kinase-ribosomal s6 kinase signaling was downstream of YAP for cell survival, migration, and invasion in androgen-insensitive cells. Finally, immunohistochemistry showed significant upregulation and hyperactivation of YAP in castration-resistant prostate tumors compared to their levels in hormone-responsive prostate tumors. Together, our results identify YAP to be a novel regulator in prostate cancer cell motility, invasion, and castration-resistant growth and as a potential therapeutic target for metastatic castration-resistant prostate cancer (CRPC).
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14
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Guan XH, Fu QC, Shi D, Bu HL, Song ZP, Xiong BR, Shu B, Xiang HB, Xu B, Manyande A, Cao F, Tian YK. Activation of spinal chemokine receptor CXCR3 mediates bone cancer pain through an Akt-ERK crosstalk pathway in rats. Exp Neurol 2015; 263:39-49. [DOI: 10.1016/j.expneurol.2014.09.019] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2014] [Revised: 08/30/2014] [Accepted: 09/12/2014] [Indexed: 12/29/2022]
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15
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Ersahin T, Tuncbag N, Cetin-Atalay R. The PI3K/AKT/mTOR interactive pathway. MOLECULAR BIOSYSTEMS 2015; 11:1946-54. [DOI: 10.1039/c5mb00101c] [Citation(s) in RCA: 245] [Impact Index Per Article: 27.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The phosphatidylinositol 3-kinase (PI3K)/AKT/mammalian target of the rapamycin (mTOR) signalling pathway is hyperactivated or altered in many cancer types and regulates a broad range of cellular processes including survival, proliferation, growth, metabolism, angiogenesis and metastasis.
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Affiliation(s)
- Tulin Ersahin
- Cancer Systems Biology Laboratory
- Graduate School of Informatics
- ODTU
- 06800 Ankara
- Turkey
| | - Nurcan Tuncbag
- Cancer Systems Biology Laboratory
- Graduate School of Informatics
- ODTU
- 06800 Ankara
- Turkey
| | - Rengul Cetin-Atalay
- Cancer Systems Biology Laboratory
- Graduate School of Informatics
- ODTU
- 06800 Ankara
- Turkey
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16
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Glassmann A, Winter J, Kraus D, Veit N, Probstmeier R. Pharmacological suppression of the Ras/MAPK pathway in thyroid carcinoma cells can provoke opposite effects on cell migration and proliferation: The appearance of yin-yang effects and the need of combinatorial treatments. Int J Oncol 2014; 45:2587-95. [PMID: 25269412 DOI: 10.3892/ijo.2014.2668] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2014] [Accepted: 08/01/2014] [Indexed: 11/06/2022] Open
Abstract
A major challenge in tumor therapy is the decrease or even the halting of cell proliferation and migration of cancerous cells. In the present study, we have analyzed the impact of a pharmacological blockade of the PI3K/Akt and MAPK/ERK1/2 signaling pathways on cell migration, proliferation and cell death in three human thyroid tumor cell lines that represent the main types of malignant thyroid carcinomas (B-CPAP, follicular; Cal-62, anaplastic; FTC-133, papillary thyroid carcinoma cells) and in which these pathways are constitutively activated. In general, pharmacological perturbation of PI3/Akt (application of MK-2206) and MEK/ERK1/2 (application of PD0325901 or U0126) signaling led to a cell line and drug-specific decrease in the proliferation and migration potential of thyroid carcinoma cells, although to a varying extent. However, one exception became apparent: in Cal-62 cells inhibition of the MEK/ERK1/2 module increased the migration rate up to 50%. This effect could be prevented by a simultaneous suppression of the PI3/Akt pathway, but also by application of the multiple kinase inhibitor sorafenib, a treatment that did not change the activation state of Akt. Thus, a pharmacological perturbation of canonical signaling pathways in thyroid carcinoma may induce drug-dependent yin-yang effects that are characterized by a simultaneous suppression of one (i.e., proliferation) and the activation of another (i.e., migration) cellular process. The appearance of such phenomena should be taken into account when therapy plans are established.
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Affiliation(s)
| | - Jochen Winter
- Oral Cell Biology Group, Department of Periodontology, Operative and Preventive Dentistry, University of Bonn, Bonn, Germany
| | - Dominik Kraus
- Department of Prosthodontics, Preclinical Education and Material Science, University of Bonn, Bonn, Germany
| | - Nadine Veit
- Neuro- and Tumor Cell Biology Group, Department of Nuclear Medicine, University Hospital of Bonn, Bonn, Germany
| | - Rainer Probstmeier
- Neuro- and Tumor Cell Biology Group, Department of Nuclear Medicine, University Hospital of Bonn, Bonn, Germany
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17
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BARBORO PAOLA, SALVI SANDRA, RUBAGOTTI ALESSANDRA, BOCCARDO SIMONA, SPINA BRUNO, TRUINI MAURO, CARMIGNANI GIORGIO, INTROINI CARLO, FERRARI NICOLETTA, BOCCARDO FRANCESCO, BALBI CECILIA. Prostate cancer: Prognostic significance of the association of heterogeneous nuclear ribonucleoprotein K and androgen receptor expression. Int J Oncol 2014; 44:1589-98. [DOI: 10.3892/ijo.2014.2345] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2013] [Accepted: 02/23/2014] [Indexed: 11/05/2022] Open
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