1
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Ciołczyk-Wierzbicka D, Krawczyk A, Zarzycka M, Zemanek G, Wierzbicki K. Three generations of mTOR kinase inhibitors in the activation of the apoptosis process in melanoma cells. J Cell Commun Signal 2023; 17:975-989. [PMID: 37097377 PMCID: PMC10409930 DOI: 10.1007/s12079-023-00748-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Accepted: 04/10/2023] [Indexed: 04/26/2023] Open
Abstract
Many signaling pathways are involved in the mammalian target of rapamycin (mTOR), and this serine/threonine kinase regulates the most important cellular processes such as cell proliferation, autophagy, and apoptosis. The subject of this research was the effect of protein kinase inhibitors involved in the AKT, MEK, and mTOR kinase signaling pathways on the expression of pro-survival proteins, activity of caspase-3, proliferation, and induction of apoptosis in melanoma cells. The following inhibitors were used: protein kinase inhibitors such as AKT-MK-2206, MEK-AS-703026, mTOR-everolimus and Torkinib, as well as dual PI3K and mTOR inhibitor-BEZ-235 and Omipalisib, and mTOR1/2-OSI-027 inhibitor in single-mode and their combinations with MEK1/2 kinase inhibitor AS-703026. The obtained results confirm the synergistic effect of nanomolar concentrations of mTOR inhibitors, especially the dual PI3K and mTOR inhibitors (Omipalisib, BEZ-235) in combination with the MAP kinase inhibitor (AS-703026) in the activation of caspase 3, induction of apoptosis, and inhibition of proliferation in melanoma cell lines. Our previous and current studies confirm the importance of the mTOR signal transduction pathway in the neoplastic transformation process. Melanoma is a case of a very heterogeneous neoplasm, which causes great difficulties in treating this neoplasm in an advanced stage, and the standard approach to this topic does not bring the expected results. There is a need for research on the search for new therapeutic strategies aimed at particular groups of patients. Effect of three generations of mTOR kinase inhibitors on caspase-3 activity, apoptosis and proliferation in melanoma cell lines.
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Affiliation(s)
- Dorota Ciołczyk-Wierzbicka
- Chair of Medical Biochemistry, Jagiellonian University Medical College, Ul. Kopernika 7, 31-034, Kraków, Poland.
| | - Agnieszka Krawczyk
- Chair of Medical Biochemistry, Jagiellonian University Medical College, Ul. Kopernika 7, 31-034, Kraków, Poland
| | - Marta Zarzycka
- Chair of Medical Biochemistry, Jagiellonian University Medical College, Ul. Kopernika 7, 31-034, Kraków, Poland
| | - Grzegorz Zemanek
- Chair of Medical Biochemistry, Jagiellonian University Medical College, Ul. Kopernika 7, 31-034, Kraków, Poland
| | - Karol Wierzbicki
- Department of Cardiovascular Surgery and Transplantology, Institute of Cardiology, Jagiellonian University, John Paul II Hospital, Ul. Prądnicka 80, 31-202, Kraków, Poland
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2
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Kalal BS, Modi PK, Najar MA, Behera SK, Upadhya D, Prasad TSK, Pai VR. Hyperphosphorylation of HDAC2 promotes drug resistance in a novel dual drug resistant mouse melanoma cell line model: an in vitro study. Am J Cancer Res 2021; 11:5881-5901. [PMID: 35018231 PMCID: PMC8727796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Accepted: 11/22/2021] [Indexed: 06/14/2023] Open
Abstract
Drug-resistant melanoma is very difficult to treat, and a novel approach is needed to overcome resistance. The present study aims at identifying the alternate pathways utilized in the dual drug-resistant mouse melanoma cells (B16F10R) for their survival and proliferation. The dual drug-resistant mouse melanoma, B16F10R, was established by treating the cells with a combination of U0126 (MEK1/2 inhibitor) and LY294002 (PI3K-AKT kinase inhibitor) in a dose-escalating manner till they attained a resistance fold factor of ≥2. The altered phosphoproteome in the B16F10R, as compared to the parental B16F10C, was analyzed using a high-resolution Orbitrap Fusion Tribrid mass spectrometer. Histone deacetylases 2 (HDAC2) was validated for its role in drug resistance by using its inhibitor, valproic acid (VPA). In the B16F10R cells, 363 altered phosphoproteins were identified, among which 126 were hyperphosphorylated, and 137 were hypophosphorylated (1.5-fold change). Pathway analysis shows the altered phosphoproteins are from RNA metabolism and cell cycle proteins. Inhibition of HDAC2 by VPA induces apoptosis in B16F10C and B16F10R. The present study highlights the role of HDAC2, a cell cycle regulator, in the development of resistance to dual drugs in murine melanoma. Therefore, designing leads for targeting HDAC2 along with key signaling pathways may be explored in treatment strategies.
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Affiliation(s)
- Bhuvanesh Sukhlal Kalal
- Department of Biochemistry, Yenepoya Medical College, Yenepoya (Deemed to be University)Mangaluru, Karnataka, India
| | - Prashant Kumar Modi
- Center for Systems Biology and Molecular Medicine, Yenepoya Research Centre, Yenepoya (Deemed to be University)Mangaluru, Karnataka, India
| | - Mohd Altaf Najar
- Center for Systems Biology and Molecular Medicine, Yenepoya Research Centre, Yenepoya (Deemed to be University)Mangaluru, Karnataka, India
| | - Santosh Kumar Behera
- Center for Systems Biology and Molecular Medicine, Yenepoya Research Centre, Yenepoya (Deemed to be University)Mangaluru, Karnataka, India
| | - Dinesh Upadhya
- Centre for Molecular Neurosciences, Department of Anatomy, Kasturba Medical College, Manipal Academy of Higher Education ManipalUdupi 576104, Karnataka, India
| | | | - Vinitha Ramanath Pai
- Department of Biochemistry, Yenepoya Medical College, Yenepoya (Deemed to be University)Mangaluru, Karnataka, India
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3
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Cappello S, Sung HM, Ickes C, Gibhardt CS, Vultur A, Bhat H, Hu Z, Brafford P, Denger A, Stejerean-Todoran I, Köhn RM, Lorenz V, Künzel N, Salinas G, Stanisz H, Legler T, Rehling P, Schön MP, Lang KS, Helms V, Herlyn M, Hoth M, Kummerow C, Bogeski I. Protein Signatures of NK Cell-Mediated Melanoma Killing Predict Response to Immunotherapies. Cancer Res 2021; 81:5540-5554. [PMID: 34518212 DOI: 10.1158/0008-5472.can-21-0164] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 07/07/2021] [Accepted: 09/10/2021] [Indexed: 11/16/2022]
Abstract
Despite impressive advances in melanoma-directed immunotherapies, resistance is common and many patients still succumb to metastatic disease. In this context, harnessing natural killer (NK) cells, which have thus far been sidelined in the development of melanoma immunotherapy, could provide therapeutic benefits for cancer treatment. To identify molecular determinants of NK cell-mediated melanoma killing (NKmK), we quantified NK-cell cytotoxicity against a panel of genetically diverse melanoma cell lines and observed highly heterogeneous susceptibility. Melanoma protein microarrays revealed a correlation between NKmK and the abundance and activity of a subset of proteins, including several metabolic factors. Oxidative phoshorylation, measured by oxygen consumption rate, negatively correlated with melanoma cell sensitivity toward NKmK, and proteins involved in mitochondrial metabolism and epithelial-mesenchymal transition were confirmed to regulate NKmK. Two- and three-dimensional killing assays and melanoma xenografts established that the PI3K/AKT/mTOR signaling axis controls NKmK via regulation of NK cell-relevant surface proteins. A "protein-killing-signature" based on the protein analysis predicted NKmK of additional melanoma cell lines and the response of patients with melanoma to anti-PD-1 checkpoint therapy. Collectively, these findings identify novel NK cell-related prognostic biomarkers and may contribute to improved and personalized melanoma-directed immunotherapies. SIGNIFICANCE: NK-cell cytotoxicity assays and protein microarrays reveal novel biomarkers of NK cell-mediated melanoma killing and enable development of signatures to predict melanoma patient responsiveness to immunotherapies.
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Affiliation(s)
- Sabrina Cappello
- Molecular Physiology, Institute of Cardiovascular Physiology, University Medical Center, Georg August University, Göttingen, Germany.,Biophysics, Centre for Integrative Physiology and Molecular Medicine, Saarland University, Homburg, Germany
| | - Hsu-Min Sung
- Molecular Physiology, Institute of Cardiovascular Physiology, University Medical Center, Georg August University, Göttingen, Germany
| | - Christian Ickes
- Molecular Physiology, Institute of Cardiovascular Physiology, University Medical Center, Georg August University, Göttingen, Germany
| | - Christine S Gibhardt
- Molecular Physiology, Institute of Cardiovascular Physiology, University Medical Center, Georg August University, Göttingen, Germany
| | - Adina Vultur
- Molecular Physiology, Institute of Cardiovascular Physiology, University Medical Center, Georg August University, Göttingen, Germany.,The Wistar Institute, Melanoma Research Center, Philadelphia, Pennsylvania
| | - Hilal Bhat
- Institute of Immunology, Medical Faculty, University Duisburg-Essen, Essen, Germany
| | - Zhongwen Hu
- Institute of Immunology, Medical Faculty, University Duisburg-Essen, Essen, Germany
| | - Patricia Brafford
- The Wistar Institute, Melanoma Research Center, Philadelphia, Pennsylvania
| | - Andreas Denger
- Center for Bioinformatics, Saarland University, Saarbrücken, Germany
| | - Ioana Stejerean-Todoran
- Molecular Physiology, Institute of Cardiovascular Physiology, University Medical Center, Georg August University, Göttingen, Germany
| | - Rixa-Mareike Köhn
- Molecular Physiology, Institute of Cardiovascular Physiology, University Medical Center, Georg August University, Göttingen, Germany
| | - Verena Lorenz
- Department of Dermatology, Venereology and Allergology, University Medical Center, Georg August University, Göttingen, Germany
| | - Nicolas Künzel
- Center for Bioinformatics, Saarland University, Saarbrücken, Germany
| | - Gabriela Salinas
- NGS- Core Unit for Integrative Genomics, Institute for Human Genetics, University Medical Center, Göttingen, Germany
| | - Hedwig Stanisz
- Department of Dermatology, Venereology and Allergology, University Medical Center, Georg August University, Göttingen, Germany
| | - Tobias Legler
- Department of Transfusion Medicine, University Medical Center Göttingen, Göttingen, Germany
| | - Peter Rehling
- Department of Cellular Biochemistry, University Medical Center, Georg-August-University, Göttingen, Germany.,Max Planck Institute for Biophysical Chemistry, Göttingen, Germany.,Cluster of Excellence "Multiscale Bioimaging: from Molecular Machines to Networks of Excitable Cells" (MBExC), University of Göttingen, Germany
| | - Michael P Schön
- Department of Dermatology, Venereology and Allergology, University Medical Center, Georg August University, Göttingen, Germany
| | - Karl S Lang
- Institute of Immunology, Medical Faculty, University Duisburg-Essen, Essen, Germany
| | - Volkhard Helms
- Center for Bioinformatics, Saarland University, Saarbrücken, Germany
| | - Meenhard Herlyn
- The Wistar Institute, Melanoma Research Center, Philadelphia, Pennsylvania
| | - Markus Hoth
- Biophysics, Centre for Integrative Physiology and Molecular Medicine, Saarland University, Homburg, Germany
| | - Carsten Kummerow
- Biophysics, Centre for Integrative Physiology and Molecular Medicine, Saarland University, Homburg, Germany
| | - Ivan Bogeski
- Molecular Physiology, Institute of Cardiovascular Physiology, University Medical Center, Georg August University, Göttingen, Germany. .,Biophysics, Centre for Integrative Physiology and Molecular Medicine, Saarland University, Homburg, Germany
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4
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Grapefruit-Derived Micro and Nanovesicles Show Distinct Metabolome Profiles and Anticancer Activities in the A375 Human Melanoma Cell Line. Cells 2020; 9:cells9122722. [PMID: 33371199 PMCID: PMC7766354 DOI: 10.3390/cells9122722] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 12/14/2020] [Accepted: 12/16/2020] [Indexed: 12/12/2022] Open
Abstract
Fruit juice is one of the most easily accessible resources for the isolation of plant-derived vesicles. Here we found that micro- and nano-sized vesicles (MVs and NVs) from four Citrus species, C. sinensis, C. limon, C. paradisi and C. aurantium, specifically inhibit the proliferation of lung, skin and breast cancer cells, with no substantial effect on the growth of non-cancer cells. Cellular and molecular analyses demonstrate that grapefruit-derived vesicles cause cell cycle arrest at G2/M checkpoint associated with a reduced cyclins B1 and B2 expression levels and the upregulation of cell cycle inhibitor p21. Further data suggest the inhibition of Akt and ERK signalling, reduced intercellular cell adhesion molecule-1 and cathepsins expressions, and the presence of cleaved PARP-1, all associated with the observed changes at the cellular level. Gas chromatography-mass spectrometry-based metabolomics reveals distinct metabolite profiles for the juice and vesicle fractions. NVs exhibit a high relative amount of amino acids and organic acids whereas MVs and fruit juice are characterized by a high percentage of sugars and sugar derivatives. Grapefruit-derived NVs are in particular rich in alpha–hydroxy acids and leucine/isoleucine, myo-inositol and doconexent, while quininic acid was detected in MVs. Our findings reveal the metabolite signatures of grapefruit-derived vesicles and substantiate their potential use in new anticancer strategies.
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Molecular Basis Associated with the Control of Primordial Follicle Activation During Transplantation of Cryopreserved Ovarian Tissue. Reprod Sci 2020; 28:1257-1266. [DOI: 10.1007/s43032-020-00318-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 09/14/2020] [Indexed: 12/18/2022]
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6
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González-Ruiz L, González-Moles MÁ, González-Ruiz I, Ruiz-Ávila I, Ayén Á, Ramos-García P. An update on the implications of cyclin D1 in melanomas. Pigment Cell Melanoma Res 2020; 33:788-805. [PMID: 32147907 DOI: 10.1111/pcmr.12874] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Revised: 02/03/2020] [Accepted: 03/02/2020] [Indexed: 12/13/2022]
Abstract
Cyclin D1 is a protein encoded by the CCND1 gene, located on 11q13 chromosome, which is a key component of the physiological regulation of the cell cycle. CCND1/cyclin D1 is upregulated in several types of human tumors including melanoma and is currently classified as an oncogene that promotes uncontrolled cell proliferation. Despite the demonstrated importance of CCND1/cyclin D1 as a central oncogene in several types of human tumors, its knowledge in melanoma is still limited. This review examines data published on upregulation of the CCND1 gene and cyclin D1 protein in the melanoma setting, focusing on the pathways and molecular mechanisms involved in the activation of the gene and on the clinical and therapeutic implications.
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Affiliation(s)
- Lucia González-Ruiz
- Dermatology Service, Ciudad Real General University Hospital, Ciudad Real, Spain
| | | | | | - Isabel Ruiz-Ávila
- Biohealth Research Institute, Granada, Spain.,Pathology Service, San Cecilio Hospital Complex, Granada, Spain
| | - Ángela Ayén
- Dermatology Service, San Cecilio Hospital Complex, Granada, Spain
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7
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Xie Y, Li S, Zhou L, Lin H, Jiao X, Qiu Q, Liang Y, Zhang Q. Rapamycin preserves the primordial follicle pool during cisplatin treatment in vitro and in vivo. Mol Reprod Dev 2020; 87:442-453. [PMID: 32112509 DOI: 10.1002/mrd.23330] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Accepted: 01/16/2020] [Indexed: 12/22/2022]
Abstract
Rapamycin has been proven to effectively inhibit the activation of primordial follicles while cisplatin-induced the loss of primordial follicles due to the over-activation of the primordial follicle stockpile. Whether rapamycin could inhibit the loss of primordial follicles induced by cisplatin is still unknown. The ovaries of neonatal Sprague Dawley rats were cultured in vitro in different doses of rapamycin (0.08, 0.16, and 0.32 μg/ml) and cisplatin (0.1, 0.4, and 0.8 μg/ml). The immature BALB/c mice were administered cisplatin with or without rapamycin by intraperitoneal injection. Ovaries were collected to analyze the histomorphology, the messenger RNA (mRNA) expression of anti-Mullerian hormone (AMH), growth differentiation factor 9 (GDF9), and bone morphogenetic protein 15 (BMP15) and the expression of key proteins of mammalian target of rapamycin (mTOR) pathway. Growing follicle counts of ovaries cultured in vitro in the R0.16 and R0.32 groups were decreased and the ratio of growing to primordial follicles was also decreased in a dose-dependent manner. In the C0.8 group, growing follicles were decreased compared with the other groups while the ratio was substantially increased in the C0.4 and C0.8 group. Co-treatment attenuated primordial follicle loss and reduced the upregulated ratio induced by cisplatin. Ovarian follicle dynamics in vivo was consistent with the in vitro results. Primordial follicles counts were statistically increased and the ratio was reduced in the rapamycin group compared with the control group. Primordial follicle counts were dramatically reduced in the cisplatin group whereas co-treatment with rapamycin slightly recovered its counts. There was no obvious difference in the number of growing follicles between the cisplatin group and other groups. The ratio was significantly increased in cisplatin-treated mice whereas decreased in the co-treatment group. The apoptosis rate of antral follicles in cisplatin-treated mice was higher than the other groups while the apoptosis rate was decreased in the co-treatment group in vivo. Compared with the control and rapamycin group, the mRNA expression of AMH, GDF9, and BMP15 were downregulated in the cisplatin group. The co-treatment group recovered the mRNA expression of BMP15. In addition, the expression of key protein of mTOR pathway rpS6 and its phosphorylated forms were increased in the cisplatin-treated group while co-treatment decreased their expression. Rapamycin attenuated the loss of primordial follicles induced by cisplatin through the inhibitory effect of rapamycin on the mTOR pathway. These results suggest that rapamycin may be an effective drug for the protection of ovarian function during chemotherapy.
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Affiliation(s)
- Yanqiu Xie
- Department of Reproductive Medicine Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Gongdong, China.,Department of Obstetrics and Gynecology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Gongdong, China
| | - Song Li
- Department of Reproductive Medicine Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Gongdong, China
| | - Linyan Zhou
- Department of Reproductive Medicine Center, Shenzhen Zhongshan Urology Hospital, Shenzhen, Gongdong, China
| | - Haiyan Lin
- Department of Reproductive Medicine Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Gongdong, China
| | - Xuedan Jiao
- Department of Reproductive Medicine Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Gongdong, China
| | - Qi Qiu
- Department of Reproductive Medicine Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Gongdong, China
| | - Yihua Liang
- Department of Reproductive Medicine Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Gongdong, China
| | - Qingxue Zhang
- Department of Reproductive Medicine Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Gongdong, China
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8
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Ciołczyk-Wierzbicka D, Gil D, Zarzycka M, Laidler P. mTOR inhibitor everolimus reduces invasiveness of melanoma cells. Hum Cell 2019; 33:88-97. [PMID: 31586300 PMCID: PMC6965047 DOI: 10.1007/s13577-019-00270-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Accepted: 07/17/2019] [Indexed: 12/31/2022]
Abstract
The mammalian target of rapamycin (mTOR) plays a key role in several cellular processes: proliferation, survival, invasion, and angiogenesis, and therefore, controls cell behavior both in health and in disease. Dysregulation of the mTOR signaling is involved in some of the cancer hallmarks, and thus the mTOR pathway is an important target for the development of a new anticancer therapy. The object of this study is recognition of the possible role of mTOR kinase inhibitors—everolimus single and in combination with selected downstream protein kinases inhibitors: LY294002 (PI3 K), U0126 (ERK1/2), GDC-0879 (B-RAF), AS-703026 (MEK), MK-2206 (AKT), PLX-4032 (B-RRAF) in cell invasion in malignant melanoma. Treatment of melanoma cells with everolimus led to a significant decrease in the level of both phosphorylated: mTOR (Ser2448) and mTOR (Ser2481) as well as their downstream effectors. The use of protein kinase inhibitors produced a significant decrease in metalloproteinases (MMPs) activity, as well as diminished invasion, especially when used in combination. The best results in the inhibition of both MMPs and cell invasiveness were obtained for the combination of an mTOR inhibitor— everolimus with a B-RAF inhibitor—PLX-4032. Slightly less profound reduction of invasiveness was obtained for the combinations of an mTOR inhibitor—everolimus with ERK1/2 inhibitor—U126 or MEK inhibitor—AS-703026 and in the case of MMPs activity decrease for PI3 K inhibitor—LY294002 and AKT inhibitor—MK-2206. The simultaneous use of everolimus or another new generation rapalog with selected inhibitors of crucial signaling kinases seems to be a promising concept in cancer treatment.
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Affiliation(s)
- Dorota Ciołczyk-Wierzbicka
- Chair of Medical Biochemistry, Jagiellonian University Medical College, ul. Kopernika 7, 31-034, Kraków, Poland.
| | - Dorota Gil
- Chair of Medical Biochemistry, Jagiellonian University Medical College, ul. Kopernika 7, 31-034, Kraków, Poland
| | - Marta Zarzycka
- Chair of Medical Biochemistry, Jagiellonian University Medical College, ul. Kopernika 7, 31-034, Kraków, Poland
| | - Piotr Laidler
- Chair of Medical Biochemistry, Jagiellonian University Medical College, ul. Kopernika 7, 31-034, Kraków, Poland
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Xie X, Xie S, Xie C, Fang Y, Li Z, Wang R, Jiang W. Pristimerin attenuates cell proliferation of uveal melanoma cells by inhibiting insulin-like growth factor-1 receptor and its downstream pathways. J Cell Mol Med 2019; 23:7545-7553. [PMID: 31508890 PMCID: PMC6815816 DOI: 10.1111/jcmm.14623] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Revised: 07/16/2019] [Accepted: 07/23/2019] [Indexed: 12/17/2022] Open
Abstract
Uveal melanoma (UM) has a high mortality rate due to liver metastasis. The insulin‐like growth factor‐1 receptor (IGF‐1R) is highly expressed in UM and has been shown to be associated with hepatic metastases. Targeting IGF signalling may be considered as a promising approach to inhibit the process of metastatic UM cells. Pristimerin (PRI) has been demonstrated to inhibit the growth of several cancer cells, but its role and underlying mechanisms in the IGF‐1‐induced UM cell proliferation are largely unknown. The present study examined the anti‐proliferative effect of PRI on UM cells and its possible role in IGF‐1R signalling transduction. MTT and clonogenic assays were used to determine the role of PRI in the proliferation of UM cells. Flow cytometry was performed to detect the effect of PRI on the cell cycle distribution of UM cells. Western blotting was carried out to assess the effects of PRI and IGF‐1 on the IGF‐1R phosphorylation and its downstream targets. The results indicated that IGF‐1 promoted the UM cell proliferation and improved the level of IGF‐1R phosphorylation, whereas PRI attenuated the effect of IGF‐1. Interestingly, PRI could not only induce the G1 phase accumulation and reduce the G2 phase induced by IGF‐1, but also could stimulate the expression of p21 and inhibit the expression of cyclin D1. Besides, PRI could attenuate the phosphorylations of Akt, mTOR and ERK1/2 induced by IGF‐1. Furthermore, the molecular docking study also demonstrated that PRI had potential inhibitory effects on IGF‐1R. Taken together, these results indicated that PRI could inhibit the proliferation of UM cells through down‐regulation of phosphorylated IGF‐1R and its downstream signalling.
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Affiliation(s)
- Xinshu Xie
- National Pharmaceutical Engineering Center for Solid Preparation in Chinese Herbal Medicine, Jiangxi University of Traditional Chinese Medicine, Nanchang, China
| | - Saisai Xie
- National Pharmaceutical Engineering Center for Solid Preparation in Chinese Herbal Medicine, Jiangxi University of Traditional Chinese Medicine, Nanchang, China
| | - Changying Xie
- Affiliated Hosptial of Jiangxi University of Traditional Chinese Medicine, Nanchang, China
| | - Yuanying Fang
- National Pharmaceutical Engineering Center for Solid Preparation in Chinese Herbal Medicine, Jiangxi University of Traditional Chinese Medicine, Nanchang, China
| | - Zhifeng Li
- National Pharmaceutical Engineering Center for Solid Preparation in Chinese Herbal Medicine, Jiangxi University of Traditional Chinese Medicine, Nanchang, China
| | - Rikang Wang
- National Pharmaceutical Engineering Center for Solid Preparation in Chinese Herbal Medicine, Jiangxi University of Traditional Chinese Medicine, Nanchang, China.,Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, School of Basic Medical Sciences, Shenzhen University Health Science Centre, Shenzhen, China
| | - Wei Jiang
- Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, School of Basic Medical Sciences, Shenzhen University Health Science Centre, Shenzhen, China
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10
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Zhang Y, Li Z, Zhao W, Hu H, Zhao L, Zhu Y, Yang X, Gao B, Yang H, Huang Y, Song X. WD repeat and SOCS box containing protein 2 in the proliferation, cycle progression, and migration of melanoma cells. Biomed Pharmacother 2019; 116:108974. [DOI: 10.1016/j.biopha.2019.108974] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Revised: 05/06/2019] [Accepted: 05/08/2019] [Indexed: 02/02/2023] Open
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11
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Chamcheu JC, Roy T, Uddin MB, Banang-Mbeumi S, Chamcheu RCN, Walker AL, Liu YY, Huang S. Role and Therapeutic Targeting of the PI3K/Akt/mTOR Signaling Pathway in Skin Cancer: A Review of Current Status and Future Trends on Natural and Synthetic Agents Therapy. Cells 2019; 8:cells8080803. [PMID: 31370278 PMCID: PMC6721560 DOI: 10.3390/cells8080803] [Citation(s) in RCA: 116] [Impact Index Per Article: 23.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2019] [Revised: 07/26/2019] [Accepted: 07/29/2019] [Indexed: 12/16/2022] Open
Abstract
The mammalian or mechanistic target of rapamycin (mTOR) and associated phosphatidyl-inositiol 3-kinase (PI3K)/protein kinase B (Akt) pathways regulate cell growth, differentiation, migration, and survival, as well as angiogenesis and metabolism. Dysregulation of these pathways is frequently associated with genetic/epigenetic alterations and predicts poor treatment outcomes in a variety of human cancers including cutaneous malignancies like melanoma and non-melanoma skin cancers. Recently, the enhanced understanding of the molecular and genetic basis of skin dysfunction in patients with skin cancers has provided a strong basis for the development of novel therapeutic strategies for these obdurate groups of skin cancers. This review summarizes recent advances in the roles of PI3K/Akt/mTOR and their targets in the development and progression of a broad spectrum of cutaneous cancers and discusses the current progress in preclinical and clinical studies for the development of PI3K/Akt/mTOR targeted therapies with nutraceuticals and synthetic small molecule inhibitors.
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Affiliation(s)
| | - Tithi Roy
- College of Pharmacy, University of Louisiana at Monroe, Monroe, LA 71209-0497, USA
| | | | - Sergette Banang-Mbeumi
- College of Pharmacy, University of Louisiana at Monroe, Monroe, LA 71209-0497, USA
- Division for Research and Innovation, POHOFI Inc., P.O. Box 44067, Madison, WI 53744, USA
- School of Nursing and Allied Health Sciences, Louisiana Delta Community College, Monroe, LA 71203, USA
| | | | - Anthony L Walker
- College of Pharmacy, University of Louisiana at Monroe, Monroe, LA 71209-0497, USA
| | - Yong-Yu Liu
- College of Pharmacy, University of Louisiana at Monroe, Monroe, LA 71209-0497, USA
| | - Shile Huang
- Department of Biochemistry and Molecular Biology, Louisiana State University Health Sciences Center, 1501 Kings Highway, Shreveport, LA 71130-3932, USA
- Feist-Weiller Cancer Center, Louisiana State University Health Sciences Center, Shreveport, LA 71130-3932, USA
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Ciołczyk-Wierzbicka D, Zarzycka M, Gil D, Laidler P. mTOR inhibitor Everolimus-induced apoptosis in melanoma cells. J Cell Commun Signal 2019; 13:357-368. [PMID: 30848427 PMCID: PMC6732148 DOI: 10.1007/s12079-019-00510-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2019] [Accepted: 02/22/2019] [Indexed: 12/29/2022] Open
Abstract
Melanoma is the most aggressive, therapy-resistant skin cancer. The mammalian target of rapamycin (mTOR), the serine/threonine kinase which integrates both intracellular and extracellular signals, plays a crucial role in coordinating the balance between the growth and death of cells. The object of this study is a comparison of the influence of mTOR inhibitor everolimus in the concentration range between 20 nM and 10 μM, used individually and in combination with selected downstream protein kinases inhibitors: LY294002 (PI3K), U0126 (ERK1/2), AS-703026 (MEK) and MK-2206 (AKT) on the expression of pro-survival proteins: p-Bcl-2 (S70), p-Bcl-2 (T56), Bcl-2, Bcl-xL, Mcl-1, activity of caspase-3, proliferation and induction of apoptosis in melanoma cells. Current results clearly show that the nanomolar concentration of the mTOR inhibitor everolimus in combination with the inhibitor of MAP kinase (AS-703026) or AKT kinase (MK-2206) is effective in inducing apoptosis and reducing proliferation of melanoma cells. The herein research results confirm the hypothesis on the important role of mTOR signaling in cancer progression, and gives hope that implementation of successful combination of its inhibitors will find recognition and application in cancer treatment in the near future.
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Affiliation(s)
| | - Marta Zarzycka
- Medical Biochemistry, Jagiellonian University Medical College, ul. Kopernika 7, 31-034, Kraków, Poland
| | - Dorota Gil
- Medical Biochemistry, Jagiellonian University Medical College, ul. Kopernika 7, 31-034, Kraków, Poland
| | - Piotr Laidler
- Medical Biochemistry, Jagiellonian University Medical College, ul. Kopernika 7, 31-034, Kraków, Poland
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Ciołczyk-Wierzbicka D, Laidler P. The inhibition of invasion of human melanoma cells through N-cadherin knock-down. Med Oncol 2018; 35:42. [PMID: 29492694 PMCID: PMC5830464 DOI: 10.1007/s12032-018-1104-9] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Accepted: 02/23/2018] [Indexed: 12/27/2022]
Abstract
N-cadherin seems to promote cell migration and invasion in many types of cancers. The object of this study is recognition of the possible role of N-cadherin and selected downstream protein kinases: PI3K, ERK1/2, and mTOR in cell invasion in malignant melanoma. Melanoma cells were transfected with the small interfering RNA (siRNA) that targets human N-cadherin gene (CDH2). Inhibitors LY294002 (PI3K), U0126 (ERK1/2), and everolimus (mTOR) were used to inhibit selected kinases of signalling pathways. In vitro cell invasion was studied using Matrigel and an analysis of matrix metalloproteinases MMP-2 and MMP-9 activity by gelatinase zymogram assay. Treatment of melanoma cell with either siRNA against N-cadherin or protein kinase inhibitors led to significantly decreased MMPs expression and activity, as well as diminished invasion. Both the current and the former results suggest that activation of PI3/AKT, mTOR, and ERK kinase, following N-cadherin expression, contributes not only to increased proliferation but also invasive potential of melanoma cells. The results also indicate that N-cadherin, as well as the studied kinases, should be considered as a potential target in melanoma therapy.
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Affiliation(s)
- Dorota Ciołczyk-Wierzbicka
- Chair of Medical Biochemistry, Jagiellonian University Medical College, ul. Kopernika 7, 31-034, Kraków, Poland.
| | - Piotr Laidler
- Chair of Medical Biochemistry, Jagiellonian University Medical College, ul. Kopernika 7, 31-034, Kraków, Poland
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