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Masaki T, Habara M, Shibutani S, Hanaki S, Sato Y, Tomiyasu H, Shimada M. Dephosphorylation of the EGFR protein by calcineurin at serine 1046/1047 enhances its stability. Biochem Biophys Res Commun 2023; 641:84-92. [PMID: 36525928 DOI: 10.1016/j.bbrc.2022.12.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Accepted: 12/05/2022] [Indexed: 12/13/2022]
Abstract
The epidermal growth factor receptor (EGFR) is highly expressed or abnormally activated in several types of cancers, such as lung and colorectal cancers. Inhibitors that suppress the tyrosine kinase activity of EGFR have been used in the treatment of lung cancer. However, resistance to these inhibitors has become an issue in cancer treatment, and the development of new therapies that inhibit EGFR is desired. We found that calcineurin, a Ca2+/calmodulin-activated serine/threonine phosphatase, is a novel regulator of EGFR. Inhibition of calcineurin by FK506 treatment or calcineurin depletion promoted EGFR degradation in cancer cells. In addition, we found that calcineurin dephosphorylates EGFR at serine (S)1046/1047, which in turn stabilizes EGFR. Furthermore, in human colon cancer cells transplanted into mice, the inhibition of calcineurin by FK506 decreased EGFR expression. These results indicate that calcineurin stabilizes EGFR by dephosphorylating S1046/1047 and promotes tumor growth. These findings suggest that calcineurin may be a new therapeutic target for cancers with high EGFR expression or activation.
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Affiliation(s)
- Takahiro Masaki
- Department of Veterinary Biochemistry, Yamaguchi University, 1677-1 Yoshida, Yamaguchi, Yamaguchi, 753-8511, Japan
| | - Makoto Habara
- Department of Veterinary Biochemistry, Yamaguchi University, 1677-1 Yoshida, Yamaguchi, Yamaguchi, 753-8511, Japan
| | - Shusaku Shibutani
- Department of Veterinary Hygiene, Yamaguchi University, 1677-1 Yoshida, Yamaguchi, Yamaguchi, 753-8511, Japan
| | - Shunsuke Hanaki
- Department of Veterinary Biochemistry, Yamaguchi University, 1677-1 Yoshida, Yamaguchi, Yamaguchi, 753-8511, Japan
| | - Yuki Sato
- Department of Veterinary Biochemistry, Yamaguchi University, 1677-1 Yoshida, Yamaguchi, Yamaguchi, 753-8511, Japan
| | - Haruki Tomiyasu
- Department of Veterinary Biochemistry, Yamaguchi University, 1677-1 Yoshida, Yamaguchi, Yamaguchi, 753-8511, Japan
| | - Midori Shimada
- Department of Veterinary Biochemistry, Yamaguchi University, 1677-1 Yoshida, Yamaguchi, Yamaguchi, 753-8511, Japan.
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Peng SY, Lin LC, Yang ZW, Chang FR, Cheng YB, Tang JY, Chang HW. Combined Treatment with Low Cytotoxic Ethyl Acetate Nepenthes Extract and Ultraviolet-C Improves Antiproliferation to Oral Cancer Cells via Oxidative Stress. Antioxidants (Basel) 2020; 9:antiox9090876. [PMID: 32948007 PMCID: PMC7555961 DOI: 10.3390/antiox9090876] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 09/13/2020] [Accepted: 09/15/2020] [Indexed: 12/22/2022] Open
Abstract
Ultraviolet-C (UVC) irradiation provides an alternative radiotherapy to X-ray. UVC sensitizer from natural products may improve radiotherapy at low cytotoxic side effects. The aim of this study is to assess the regulation for oral cancer cell proliferation by a combined treatment of UVC and our previously reported anti-oral cancer natural product (ethyl acetate extract of Nepenthes adrianii × clipeata; EANA). The detailed possible UVC sensitizing mechanisms of EANA such as effects on cell proliferation, cell cycle, apoptosis, and DNA damage are investigated individually and in combination using 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTS) assay, flow cytometry, and western blotting at low dose conditions. In a 24 h MTS assay, the low dose EANA (5 μg/mL) and low dose UVC (12 J/m2) individually show 80% and combinedly 57% cell proliferation in oral cancer Ca9-22 cells; but no cytotoxicity to normal oral HGF-1 cells. Mechanistically, low dose EANA and low dose UVC individually induce apoptosis (subG1 accumulation, pancaspase activation, and caspases 3, 8, 9), oxidative stress (reactive oxygen species, mitochondrial superoxide, and mitochondrial membrane potential depletion), and DNA damage (γH2AX and 8-hydroxy-2′-deoxyguanosine). Moreover, the combined treatment (UVC/EANA) synergistically induces these changes. Combined low dose treatment-induced antiproliferation, apoptosis, oxidative stress, and DNA damage were suppressed by the ROS scavenger N-acetylcysteine. In conclusion, UVC/EANA shows synergistic antiproliferation, oxidative stress, apoptosis, and DNA damage to oral cancer cells in an oxidative stress-dependent manner. With the selective killing properties of low dose EANA and low dose UVC, EANA provides a novel UVC sensitizing agent to improve the anti-oral cancer therapy.
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Affiliation(s)
- Sheng-Yao Peng
- Department of Biomedical Science and Environmental Biology, PhD Program in Life Sciences, College of Life Science, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; (S.-Y.P.); (Z.-W.Y.)
| | - Li-Ching Lin
- Department of Radiation Oncology, Chi-Mei Foundation Medical Center, Tainan 71004, Taiwan;
- School of Medicine, Taipei Medical University, Taipei 11031, Taiwan
- Chung Hwa University of Medical Technology, Tainan 71703, Taiwan
| | - Zhe-Wei Yang
- Department of Biomedical Science and Environmental Biology, PhD Program in Life Sciences, College of Life Science, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; (S.-Y.P.); (Z.-W.Y.)
| | - Fang-Rong Chang
- Graduate Institute of Natural Products, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; (F.-R.C.); (Y.-B.C.)
| | - Yuan-Bin Cheng
- Graduate Institute of Natural Products, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; (F.-R.C.); (Y.-B.C.)
| | - Jen-Yang Tang
- Department of Radiation Oncology, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- Department of Radiation Oncology, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan
- Correspondence: (J.-Y.T.); (H.-W.C.); Tel.: +886-7-312-1101 (ext. 8105) (J.-Y.T.); +886-7-312-1101 (ext. 2691) (H.-W.C.)
| | - Hsueh-Wei Chang
- Department of Biomedical Science and Environmental Biology, PhD Program in Life Sciences, College of Life Science, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; (S.-Y.P.); (Z.-W.Y.)
- Cancer Center, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan
- Center for Cancer Research, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- Correspondence: (J.-Y.T.); (H.-W.C.); Tel.: +886-7-312-1101 (ext. 8105) (J.-Y.T.); +886-7-312-1101 (ext. 2691) (H.-W.C.)
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Horibe Y, Adachi S, Yasuda I, Yamauchi T, Kawaguchi J, Kozawa O, Shimizu M, Moriwaki H. Anticancer effect of arsenite on cell migration, cell cycle and apoptosis in human pancreatic cancer cells. Oncol Lett 2016; 12:177-182. [PMID: 27347121 DOI: 10.3892/ol.2016.4564] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Accepted: 03/01/2016] [Indexed: 01/03/2023] Open
Abstract
The standard treatment for advanced pancreatic cancer is chemotherapy, but its clinical outcome remains unsatisfactory. Therefore, the development of novel treatments for this malignancy is urgently required. In the present study, the anticancer effect of arsenite on platelet-derived growth factor (PDGF)-BB-induced migration, cell cycle and apoptosis was investigated in pancreatic cancer cells (AsPC-1 and BxPC-3), and compared with the effect on normal pancreatic epithelial (PE) cells. In the cell migration assay, arsenite clearly inhibited PDGF-BB-induced cell migration in AsPC-1 cells, but not in BxPC-3 or PE cells. Arsenite also caused cell apoptosis in AsPC-1 cells, but not in BxPC-3 or PE cells. In AsPC-1 cells, the levels of cyclin D1 and phosphorylated retinoblastoma protein decreased following treatment with arsenite, but this was not observed in BxPC-3 cells. To further examine the differences between these two cell lines, the effect of arsenite on upstream p44/p42 mitogen-activated protein kinase (MAPK) and Akt was investigated. PDGF-BB caused phosphorylation of p44/p42 MAPK and Akt in both cell lines. Pretreatment with arsenite significantly suppressed PDGF-BB-induced phosphorylation of Akt, but not of p44/p42 MAPK in AsPC-1 cells. By contrast, arsenite did not affect these molecules in BxPC-3 cells. Since the inhibition of the Akt signaling pathway markedly reduced PDGF-BB-induced migration in AsPC-1 cells, the present results strongly suggest that arsenite inhibits PDGF-BB-induced migration by suppressing the Akt signaling pathway in AsPC-1 cells. Therefore, arsenite may be a useful tool for the treatment of patients with certain types of pancreatic cancer, without causing adverse effects on normal pancreatic cells.
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Affiliation(s)
- Yohei Horibe
- Department of Gastroenterology, Gifu University Graduate School of Medicine, Gifu 501-1194, Japan
| | - Seiji Adachi
- Department of Gastroenterology, Gifu University Graduate School of Medicine, Gifu 501-1194, Japan
| | - Ichiro Yasuda
- Department of Gastroenterology, Gifu University Graduate School of Medicine, Gifu 501-1194, Japan
| | - Takahiro Yamauchi
- Department of Gastroenterology, Gifu University Graduate School of Medicine, Gifu 501-1194, Japan
| | - Junji Kawaguchi
- Department of Gastroenterology, Gifu University Graduate School of Medicine, Gifu 501-1194, Japan
| | - Osamu Kozawa
- Department of Pharmacology, Gifu University Graduate School of Medicine, Gifu 501-1194, Japan
| | - Masahito Shimizu
- Department of Gastroenterology, Gifu University Graduate School of Medicine, Gifu 501-1194, Japan
| | - Hisataka Moriwaki
- Department of Gastroenterology, Gifu University Graduate School of Medicine, Gifu 501-1194, Japan
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Kjær I, Lindsted T, Fröhlich C, Olsen JV, Horak ID, Kragh M, Pedersen MW. Cetuximab Resistance in Squamous Carcinomas of the Upper Aerodigestive Tract Is Driven by Receptor Tyrosine Kinase Plasticity: Potential for mAb Mixtures. Mol Cancer Ther 2016; 15:1614-26. [PMID: 27196767 DOI: 10.1158/1535-7163.mct-15-0565] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Accepted: 04/28/2016] [Indexed: 11/16/2022]
Abstract
Squamous cell carcinomas (SCC) arising in upper parts of the aerodigestive tract are among the leading causes of death worldwide. EGFR has been found to play an essential role in driving the malignancy of SCC of the upper aerodigestive tract (SCCUAT), but, despite this, clinical results using a range of different EGFR-targeted agents have been disappointing. Cetuximab is currently the only EGFR-targeted agent approved by the FDA for treatment of SCCUAT. However, intrinsic and acquired cetuximab resistance is a major problem for effective therapy. Thus, a better understanding of the mechanisms responsible for cetuximab resistance is valuable for development of the next generation of antibody therapeutics. In order to better understand the underlying mechanisms of cetuximab resistance in SCCUAT, we established from cetuximab-sensitive models cell lines with acquired resistance to cetuximab by continuous selective pressure in vitro and in vivo Our results show that resistant clones maintain partial dependency on EGFR and that receptor tyrosine kinase plasticity mediated by HER3 and IGF1R plays an essential role. A multitarget mAb mixture against EGFR, HER3, and IGF1R was able to overcome cetuximab resistance in vitro To our surprise, these findings could be extended to include SCCUAT cell lines with intrinsic resistance to cetuximab, suggesting that the triad consisting of EGFR, HER3, and IGF1R plays a key role in SCCUAT. Our results thus provide a rationale for simultaneous targeting of EGFR, HER3, and IGF1R in SCCUAT. Mol Cancer Ther; 15(7); 1614-26. ©2016 AACR.
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Affiliation(s)
- Ida Kjær
- Symphogen A/S, Ballerup, Denmark. The Novo Nordisk Foundation Center for Protein Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | | | | | - Jesper Velgaard Olsen
- The Novo Nordisk Foundation Center for Protein Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
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Chang HW, Tang JY, Yen CY, Chang HS, Huang HW, Chung YA, Chen IS, Huang MY. Synergistic anti-oral cancer effects of UVC and methanolic extracts of Cryptocarya concinna roots via apoptosis, oxidative stress and DNA damage. Int J Radiat Biol 2016; 92:263-72. [PMID: 26887975 DOI: 10.3109/09553002.2016.1145753] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Purpose Radiation combined with natural products may improve the radiosensitivity of cancer cells. This study investigated the potential of a combined modality treatment with Ultraviolet C (UVC; wavelength range 200-280 nm) and our previously identified anti-oral cancer agent (methanolic extracts of Cryptocarya concinna roots; MECCrt) in oral cancer cells. Materials and methods The mechanism of the possible synergy of UVC and MECCrt was explored in terms of cell viability, cell cycle, apoptosis, reactive oxygen species (ROS), mitochondrial membrane potential (MitoMP), and DNA damage analyses. Results In cell viability (%) at 24 h treatment, the low doses of UVC (14 J/m(2)) and MECCrt (10 μg/ml) resulted in slight damage to human oral cancer Ca9-22 cells (83.2 and 80.4) but was less harmful to human oral normal HGF-1 cells (93.4 and 91.8, respectively). The combined treatment of UVC and MECCrt (UVC/MECCrt) had a lower viability (54.5%) than UVC or MECCrt alone in Ca9-22 cells but no showed significant change in HGF-1 cells. In Ca9-22 cells, the expression of flow cytometry-based apoptosis (sub-G1 phase, annexin V, and pancaspase assays) was significantly higher in UVC/MECCrt than in UVC or MECCrt alone (p < 0.0001). Using flow cytometry, intracellular ROS levels of UVC/MECCrt and MECCrt alone were higher than for UVC alone. MitoMP change and H2A histone family member X (γH2AX; H2AFX)-based DNA damage were synergistically inhibited and induced by MECCrt/UVC compared to its single treatment in Ca9-22 cells, respectively. Conclusion UVC plus MECCrt treatment had selective killing and synergistic anti-proliferative effects against oral cancer cells involving apoptosis, oxidative stress, and DNA damage. This combination therapy appears to have a great clinical potential against oral cancer cells.
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Affiliation(s)
- Hsueh-Wei Chang
- a Department of Biomedical Science and Environmental Biology , Kaohsiung Medical University , Kaohsiung , Taiwan ;,b Institute of Medical Science and Technology, National Sun Yat-sen University , Kaohsiung , Taiwan ;,c Cancer Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University , Kaohsiung , Taiwan ;,d Center for Research Resources and Development, Kaohsiung Medical University , Kaohsiung , Taiwan
| | - Jen-Yang Tang
- e Department of Radiation Oncology, Faculty of Medicine, College of Medicine , Kaohsiung Medical University Hospital , Kaohsiung , Taiwan ;,f Department of Radiation Oncology , Kaohsiung Medical University , Kaohsiung , Taiwan ;,g Department of Radiation Oncology , Kaohsiung Municipal Ta-Tung Hospital , Kaohsiung , Taiwan
| | - Ching-Yu Yen
- h Department of Oral and Maxillofacial Surgery , Chi-Mei Medical Center , Tainan ;,i School of Dentistry , Taipei Medical University , Taipei
| | - Hsun-Shuo Chang
- j Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University , Kaohsiung , Taiwan ;,k School of Pharmacy, College of Pharmacy , Kaohsiung Medical University , Kaohsiung , Taiwan
| | - Hurng-Wern Huang
- l Institute of Biomedical Science, National Sun Yat-Sen University , Kaohsiung , Taiwan
| | - Yi-An Chung
- a Department of Biomedical Science and Environmental Biology , Kaohsiung Medical University , Kaohsiung , Taiwan
| | - Ih-Sheng Chen
- j Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University , Kaohsiung , Taiwan ;,k School of Pharmacy, College of Pharmacy , Kaohsiung Medical University , Kaohsiung , Taiwan
| | - Ming-Yii Huang
- e Department of Radiation Oncology, Faculty of Medicine, College of Medicine , Kaohsiung Medical University Hospital , Kaohsiung , Taiwan ;,f Department of Radiation Oncology , Kaohsiung Medical University , Kaohsiung , Taiwan
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Nimotuzumab suppresses epithelial-mesenchymal transition and enhances apoptosis in low-dose UV-C treated salivary adenoid cystic carcinoma cell lines in vitro. Anticancer Drugs 2015; 25:1052-60. [PMID: 25035960 DOI: 10.1097/cad.0000000000000139] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Salivary adenoid cystic carcinoma (SACC), which is one of the most common malignant tumors of the salivary glands, is associated with a poor long-term outcome. There are currently few therapeutic options for patients with SACC. Recent studies have shown the potential of the application of ultraviolet-C (UV-C) irradiation for the treatment of human cancer. In the present study, we investigated the effects of UV-C in the SACC cell lines SACC-83 and SACC-LM. High-dose UV-C (200 J/m) induced apoptosis and inhibited colony formation significantly. However, low-dose UV-C (10 J/m), which had little effect on apoptosis and colony formation, increased the ability of migration in SACC cells accompanied by a decrease in E-cadherin and an increase in vimentin, suggesting the occurrence of epithelial-mesenchymal transition (EMT). Low-dose UV-C (10 J/m) also resulted in upregulation of the phosphorylated forms of epidermal growth factor receptor (EGFR) and Akt (p-EGFR and p-Akt, respectively). Pretreatment with Nimotuzumab, an anti-EGFR monoclonal antibody, reversed the EMT as well as upregulation of p-EGFR/p-Akt induced by UV-C. Moreover, Nimotuzumab enhanced UV-C induced apoptosis and inhibition of colony formation. Our results indicate that EMT exerts a protective effect against apoptosis induced by low-dose UV-C. Thus, the combined application of Nimotuzumab and low-dose UV-C in vitro has an advantageous antitumor effect in SACC compared with the application of UV-C alone.
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Kawaguchi J, Adachi S, Yasuda I, Yamauchi T, Yoshioka T, Itani M, Kozawa O, Moriwaki H. UVC irradiation suppresses platelet-derived growth factor-BB-induced migration in human pancreatic cancer cells. Oncol Rep 2011; 27:935-9. [PMID: 22200892 PMCID: PMC3583433 DOI: 10.3892/or.2011.1612] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2011] [Accepted: 12/05/2011] [Indexed: 01/02/2023] Open
Abstract
We have recently reported that short wavelength ultraviolet-C (UVC) irradiation inhibits cell growth and induces apoptosis in human pancreatic cancer cells. In this study, we investigated the effect of UVC on platelet-derived growth factor (PDGF)-BB-induced migration in pancreatic cancer cells, AsPC1 and BxPC3. In cell migration assays using a Boyden chamber Transwell, PDGF-BB exerted a maximum effect on migration of these cells at a dose of 70 ng/ml after 36 h of treatment. PDGF-BB also caused phosphorylation of p44/p42 mitogen-activated protein kinase (MAPK), stress-activated protein kinase/c-Jun-N-terminal kinase (SAPK/JNK) and Akt, but not of p38 MAPK in these cells. Pretreatment of these cells with UVC at a dose over 10 J markedly suppressed PDGF-BB-induced migration. Since UVC significantly inhibited PDGF-BB-induced phosphorylation of Akt, and subsequent glycogen synthase kinase (GSK) 3β, but not p44/p42 MAPK and SAPK/JNK, it is likely that UVC inhibits PDGF-BB-induced migration by suppressing the Akt-GSK3β pathway in pancreatic cancer cells. Taken together with our previous findings, UVC could be a useful tool for the treatment of patients with pancreatic cancer.
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Affiliation(s)
- Junji Kawaguchi
- Department of Gastroenterology, Gifu University Graduate School of Medicine, Gifu 501-1194, Japan
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