151
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Cheng CY, Liu CJ, Huang YC, Wu SH, Fang HW, Chen YJ. BI2536 induces mitotic catastrophe and radiosensitization in human oral cancer cells. Oncotarget 2018; 9:21231-21243. [PMID: 29765534 PMCID: PMC5940398 DOI: 10.18632/oncotarget.25035] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Accepted: 03/19/2018] [Indexed: 11/25/2022] Open
Abstract
BI2536 has been developed as a potential therapeutic agent for various cancers but not in oral cancer cells. Since BI2536 exhibits mitosis-regulating activity which are the most radiosensitive, we hypothesized that BI2536 might modulate the radiosensitivity of oral cancer cells. Human normal fibroblasts, oral cancer SAS, and OECM1 cells were treated with BI2536 (0-50 nM) and/or radiation (0-4 Gy). MTT assay, Liu's staining, flow cytometry, clonogenic assay, Annexin V/propidium iodide (PI) staining, western blot analysis, and small interfering RNA knockdown experiments were used to assess cell viability, morphology, cell cycle progression, radiation survival, and expression of regulatory proteins in vitro. Male BALB/c nude mice implanted with SAS cells were used to examine the effects of BI2536 in vivo. Treatment with BI2536 preferentially inhibited the viability of SAS and OECM1 cells, but not the normal fibroblasts. Morphological examination and Annexin V/PI staining of BI2536-treated oral cancer cells showed mitotic catastrophe and apoptosis. A DNA histogram revealed BI2536 induced G2/M and upregulation of phosphorylated H3 indicating accumulation in the M phase. BI2536 modulated the expression of PLK1, cell division control protein (Cdc)2, Cdc20, Cdc25c, adenomatous polyposis coli 3, and cyclin B1. At 10 nM, BI2536 exhibited low cytotoxicity, effectively induced mitotic catastrophe, and more importantly, sensitized oral cancer cells to radiotherapy. The animal study showed that BI2536 (10 mg/kg) + radiation (2 Gy) resulted in stronger tumor inhibition than that associated with radiation alone. Our findings showed that BI2536 could be an effective radiosensitizer both in vitro and in vivo.
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Affiliation(s)
- Chieh-Yuan Cheng
- Graduate Institute of Engineering Technology, National Taipei University of Technology, Taipei 10608, Taiwan.,Department of Oral and Maxillofacial Surgery, Mackay Memorial Hospital, Taipei 10449, Taiwan.,Institute of Oral Biology, School of Dentistry, National Yang-Ming University, Taipei 11221, Taiwan
| | - Chung-Ji Liu
- Department of Oral and Maxillofacial Surgery, Mackay Memorial Hospital, Taipei 10449, Taiwan.,Institute of Oral Biology, School of Dentistry, National Yang-Ming University, Taipei 11221, Taiwan
| | - Yu-Chuen Huang
- School of Chinese Medicine, China Medical University, Taichung 40402, Taiwan.,Department of Medical Research, China Medical University Hospital, Taichung 40402, Taiwan
| | - Shu-Hua Wu
- Department of Medical Research, Mackay Memorial Hospital, New Taipei City 25160, Taiwan
| | - Hsu-Wei Fang
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei 10608, Taiwan.,Institute of Biomedical Engineering and Nanomedicine, National Health Research Institutes, Miaoli County 35053, Taiwan
| | - Yu-Jen Chen
- Department of Medical Research, China Medical University Hospital, Taichung 40402, Taiwan.,Department of Medical Research, Mackay Memorial Hospital, New Taipei City 25160, Taiwan.,Department of Radiation Oncology, Mackay Memorial Hospital, Taipei 10449, Taiwan
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152
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Nuñez-Aguilar J, Fernández-Olavarría A, Oliveros-López LG, Torres-Lagares D, Serrera-Figallo MA, Gutiérrez-Corrales A, Gutiérrez-Pérez JL. Evolution of oral health in oral cancer patients with and without dental treatment in place: Before, during and after cancer treatment. J Clin Exp Dent 2018; 10:e158-e165. [PMID: 29670734 PMCID: PMC5899789 DOI: 10.4317/jced.54608] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2017] [Accepted: 01/12/2018] [Indexed: 11/30/2022] Open
Abstract
Background This study aims to evaluate the influence of two dental treatment protocols, outpatient non-regulated treatment versus supervised hospital treatment, on the oral health of patients undergoing oral cancer (only radiochemotherapy treatment, not surgical) treatment. Material and Methods The study used a quasi-experimental approach justified on ethical grounds. A total of 41 patients were included in the control group (outpatient non-regulated treatment) and 40 patients in the experimental group (in-hospital supervised treatment). The patients were treated only with chemotherapy (not surgical treatment was made) for oral cancer. This decision was taken by the oncology committee of the hospital without being influenced by this study. Data regarding plaque index, daily brushing habits, appearance of new cavities, need for extractions, appearance of candidiasis and use of prosthetics in both groups were collected at three points throughout the study: before starting cancer treatment, during treatment and after treatment. The values obtained using the Student’s t-test and chi-squared were compared. Results Based on similar patient backgrounds, throughout cancer treatment the intervention under study resulted in a decrease in plaque index, necessary extractions, and incidence of decay, as well as an increase in daily brushing among other improvements in oral health observed in the experimental group versus the control group. Conclusions From our data, we can confirm that supervised dental treatment performed during oral cancer treatment produced an improvement in the oral health of patients with oral cancer. Key words:Oral cancer, dental treatment, quality of life, oncology, dentistry.
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Affiliation(s)
| | | | | | - Daniel Torres-Lagares
- PhD, DDS, MSc. Professor of Oral Surgery. Chairman of Oral Surgery. Department of Stomatology. University of Seville
| | | | | | - Jose-Luis Gutiérrez-Pérez
- PhD, DMD, Professor of Oral Surgery. Chairman of Oral Surgery. Department of Stomatology. University of Seville
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153
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Bartella AK, Sander AK, Kamal M, Steegmann J, Kloss-Brandstätter A, Teichmann J, Hölzle F, Lethaus B. Preoperative assessment of the risk of postoperative death in patients with oral squamous cell carcinoma: a consideration beyond age, sex, and stage of cancer. Br J Oral Maxillofac Surg 2018; 56:322-326. [PMID: 29628170 DOI: 10.1016/j.bjoms.2018.03.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Accepted: 03/16/2018] [Indexed: 12/26/2022]
Abstract
Despite improvements in the management of patients in critical care, about 3% patients who have an operation with curative intent for oral squamous cell carcinoma (SCC) do not survive their stay in hospital. Our aim was to assess the risk factors for postoperative death that were independent of the stage of the cancer, or the age and sex of the patients. We screened 4760 consecutive inpatients at a maxillofacial tertiary care centre from 2011 to 2016, and 34 of them had died within the first three months after operation. We matched them with a further 34 patients with the same TNM stage, age, and sex. General personal and clinical data and preoperative laboratory values were screened, and we applied a Charlson Comorbidity Score (for anaesthetic risk) for each group. Patients' mean (SD) age was 66 (12) years old. There was no significant difference in sex (p=1), age (p=0.718), or TNM classification. Those who died after operation had significantly more renal (p=0.027) and gastrointestinal (p=0.006) diseases, but cardiac diseases (p=0.468) and diabetes mellitus (p=1) were not significant risk factors in themselves. Patients who died postoperatively had significantly worse risk scores (p=0.001) overall. The most common causes of death were septic shock (n=10) and acute cardiac (n=9) or respiratory failure (n=7). Our findings suggested that general diseases were not intrinsically a contraindication for operation with curative intent. The Charlson Comorbidity Score helped to detect potentially fatal courses and could be useful in the preoperative assessment of patients whose general health is not good.
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Affiliation(s)
- A K Bartella
- Department of Oral, Maxillofacial and Plastic Facial Surgery, University Hospital of Aachen University, Pauwelsstraße 30, 52074 Aachen, Germany.
| | - A-K Sander
- Department of Oral, Maxillofacial and Plastic Facial Surgery, University Hospital of Aachen University, Pauwelsstraße 30, 52074 Aachen, Germany.
| | - M Kamal
- Department of Oral, Maxillofacial and Plastic Facial Surgery, University Hospital of Aachen University, Pauwelsstraße 30, 52074 Aachen, Germany.
| | - J Steegmann
- Department of Oral, Maxillofacial and Plastic Facial Surgery, University Hospital of Aachen University, Pauwelsstraße 30, 52074 Aachen, Germany.
| | - A Kloss-Brandstätter
- Department of Oral, Maxillofacial and Plastic Facial Surgery, University Hospital of Aachen University, Pauwelsstraße 30, 52074 Aachen, Germany; Carinthia University of Applied Sciences, Europastrasse 4, 9524 Villach, Austria.
| | - J Teichmann
- Department of Oral, Maxillofacial and Plastic Facial Surgery, University Hospital of Aachen University, Pauwelsstraße 30, 52074 Aachen, Germany.
| | - F Hölzle
- Department of Oral, Maxillofacial and Plastic Facial Surgery, University Hospital of Aachen University, Pauwelsstraße 30, 52074 Aachen, Germany.
| | - B Lethaus
- Department of Oral, Maxillofacial and Plastic Facial Surgery, University Hospital of Aachen University, Pauwelsstraße 30, 52074 Aachen, Germany.
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154
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A worldwide comparison of the management of surgical treatment of advanced oral cancer. J Craniomaxillofac Surg 2018; 46:511-520. [DOI: 10.1016/j.jcms.2017.12.031] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Revised: 12/15/2017] [Accepted: 12/29/2017] [Indexed: 11/21/2022] Open
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155
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Oridonin inhibits oral cancer growth and PI3K/Akt signaling pathway. Biomed Pharmacother 2018; 100:226-232. [PMID: 29432993 DOI: 10.1016/j.biopha.2018.02.011] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2017] [Revised: 02/02/2018] [Accepted: 02/02/2018] [Indexed: 01/19/2023] Open
Abstract
Oridonin, a bioactive diterpenoid purified from Rabdosia rubescens, has been shown to possess anticancer capacity in several cancer types. However, its effects on oral squamous cell carcinoma (OSCC) cells remain unclear. This study aimed to investigate the anticancer ability of oridonin in OSCC cells, including proliferation, apoptosis and underlying mechanisms using the OSCC cell lines, UM1 and SCC25. The results showed that oridonin not only inhibited proliferation and clonal formation but also induced G2/M cell cycle arrest and apoptosis in UM1 and SCC25 cells in a dose-dependent manner. Western blot revealed that oridonin treatment increased the ratio of Bax/Bcl-2, and activated the cleavage of caspase-3, caspase-9 and PARP-1. Oridonin also induced G2/M phase arrest in OSCC cells via down-regulating the G2/M transition-related proteins such as cyclin B1 or up-regulating cyclin D1, cyclin D3, P21, p-CDK1 and cyclin A2. In addition, oridonin treatment significantly inhibited the phosphorylation of PI3K and Akt and inhibited tumor growth of OSCC xenograft in nude mice. Taken together, these results suggested that oridonin possesses anti-oral cancer capacity via inhibiting the PI3K/Akt signaling and induce apoptosis and G2/M-phase arrest. Therefore, oridonin may be a potential anticancer drug for the treatment of oral cancer.
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156
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A comparison of cell survival and heat shock protein expression after radiation in normal dermal fibroblasts, microvascular endothelial cells, and different head and neck squamous carcinoma cell lines. Clin Oral Investig 2018; 22:2251-2262. [PMID: 29307045 DOI: 10.1007/s00784-017-2323-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2017] [Accepted: 12/20/2017] [Indexed: 02/07/2023]
Abstract
OBJECTIVES Head and neck squamous cell carcinoma (HNSCC) shows increased radioresistance due to the manipulation of homeostatic mechanisms like the heat shock response. This study intended to comparatively analyze effects of ionizing radiation on different HNSCC cell lines (PCI) and normal human dermal fibroblasts (NHFs) and human dermal microvascular endothelial cells (HDMECs) to uncover differences in radiation coping strategies. MATERIALS AND METHODS Proliferation (BrdU assay), apoptosis (caspase 3/7) and intracellular protein expression of heat shock protein (HSP)-70, and phosphorylated and total HSP27, determined by enzyme-linked immunosorbent assay (ELISA), were analyzed after exposure to increasing doses of ionizing radiation (2, 6, and 12 Gray, Gy). RESULTS Cell count decreased dose-dependently, but PCI cell lines consistently showed higher numbers compared to NHF and HDMEC. Likewise, high doses reduced cell proliferation, but low-dose radiation (2 Gy) instead increased proliferation in PCI 9 and 52. Apoptosis was not detectable in PCI cell lines. Basic HSP70 expression was high in PCI cells with little additional increase by irradiation. PCI cells yielded high basic total HSP27 concentrations but irradiation dose-dependently increased HSP27 in HDMEC, NHF, and PCI cells. Phosphorylated HSP27 concentrations were highest in NHF. CONCLUSION PCI cell lines showed higher resistance to dose-dependent reduction in cell number, proliferation, and protection from apoptosis compared to NHF and HDMEC. In parallel, we observed a high basic and radiation-induced expression of intracellular HSP70 leading to the assumption that the radioresistance of PCI cells is conferred by HSP70. CLINICAL RELEVANCE HNSCC use HSP to escape radiation-induced apoptosis and certain subtypes might increase proliferation after low-dose irradiation.
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157
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Gill A, Vasan N, Givi B, Joshi A. AHNS Series: Do you know your guidelines? Evidence-based management of oral cavity cancers. Head Neck 2017; 40:406-416. [PMID: 29206324 DOI: 10.1002/hed.25024] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2017] [Accepted: 10/13/2017] [Indexed: 12/22/2022] Open
Abstract
Oral cavity squamous cell carcinoma (OCSCC) is the most common nonmelanoma head and neck cancer in the world, with an estimated 405 000 new cases expected each year. Subsites of the oral cavity include the alveolar ridge, buccal mucosa, anterior tongue, tonsillar pillar, retromolar trigone, hard palate, gingiva, and floor of the mouth. In this issue of the AHNS "Do you know your guidelines?" series, we review the evidence-based approach to the management of oral cavity carcinomas based on the framework provided by the National Comprehensive Cancer Network (NCCN) Clinical Practice Guidelines in Oncology.
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Affiliation(s)
- Amarbir Gill
- Division of Otolaryngology - Head and Neck Surgery, The University of California, Davis, Sacramento, California
| | - Nilesh Vasan
- Department of Otorhinolaryngology - University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
| | - Babak Givi
- Department of Otolaryngology - New York University Langone Medical Center, New York, New York
| | - Arjun Joshi
- Division of Otolaryngology - Head and Neck Surgery, The George Washington University, Washington, DC
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158
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Yu HJ, Shin JA, Yang IH, Won DH, Ahn CH, Kwon HJ, Lee JS, Cho NP, Kim EC, Yoon HJ, Lee JI, Hong SD, Cho SD. Apoptosis induced by caffeic acid phenethyl ester in human oral cancer cell lines: Involvement of Puma and Bax activation. Arch Oral Biol 2017; 84:94-99. [DOI: 10.1016/j.archoralbio.2017.09.024] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2017] [Revised: 08/24/2017] [Accepted: 09/24/2017] [Indexed: 02/06/2023]
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159
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Chen YJ, Kuo CC, Ting LL, Lu LS, Lu YC, Cheng AJ, Lin YT, Chen CH, Tsai JT, Chiou JF. Piperlongumine inhibits cancer stem cell properties and regulates multiple malignant phenotypes in oral cancer. Oncol Lett 2017; 15:1789-1798. [PMID: 29399195 DOI: 10.3892/ol.2017.7486] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Accepted: 09/13/2017] [Indexed: 12/15/2022] Open
Abstract
Piperlongumine (PL), a natural product of Piper longum, inhibits multiple malignant phenotypes. Therefore, the present study examined whether PL suppresses cancer stemness in oral cancer. The cellular effects of PL were determined by examining alterations in tumor sphere formation, cell migration, invasion, proliferation ability, chemosensitivity and radiosensitivity. Reverse transcription-quantitative polymerase chain reaction analysis and western blotting were performed in order to determine molecular expression levels. The present study revealed that PL inhibited cancer stem cell-forming ability and suppressed the expression of the stemness-related transcription factors SRY-Box 2, POU class 5 homeobox 1, and Nanog homeobox. However, it increased the expression of the differentiation marker cytokeratin 18. PL also suppressed cell migration and invasion, resulting in the elimination of the epithelial-mesenchymal transition. Furthermore, PL increased chemo- and radiosensitivity and suppressed tumor growth in vitro and in vivo. The results of the present study suggested that PL inhibits malignant phenotypes via the suppression of cancer stemness in oral cancer. Thus, PL may serve as an effective therapeutic agent for oral cancer.
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Affiliation(s)
- Yin-Ju Chen
- Department of Radiation Oncology, Taipei Medical University Hospital, Taipei 11031, Taiwan, R.O.C.,Graduate Institute of Biomedical Materials and Tissue Engineering, Taipei Medical University, Taipei 11031, Taiwan, R.O.C.,International Ph.D. Program in Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan, R.O.C.,Translational Laboratory, Research Department, Taipei Medical University Hospital, Taipei 11031, Taiwan, R.O.C.,School of Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan, R.O.C
| | - Chia-Chun Kuo
- Department of Radiation Oncology, Taipei Medical University Hospital, Taipei 11031, Taiwan, R.O.C
| | - Lai-Lei Ting
- Department of Radiation Oncology, Taipei Medical University Hospital, Taipei 11031, Taiwan, R.O.C
| | - Long-Sheng Lu
- Department of Radiation Oncology, Taipei Medical University Hospital, Taipei 11031, Taiwan, R.O.C.,Graduate Institute of Biomedical Materials and Tissue Engineering, Taipei Medical University, Taipei 11031, Taiwan, R.O.C.,International Ph.D. Program in Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan, R.O.C
| | - Ya-Ching Lu
- Department of Medical Biotechnology, Medical College, Chang Gung University, Taoyuan 33302, Taiwan, R.O.C
| | - Ann-Joy Cheng
- Department of Medical Biotechnology, Medical College, Chang Gung University, Taoyuan 33302, Taiwan, R.O.C
| | - Yun-Tien Lin
- School of Medical Laboratory Science and Biotechnology, College of Medical Science and Technology, Taipei Medical University, Taipei 11031, Taiwan, R.O.C
| | - Chien-Ho Chen
- School of Medical Laboratory Science and Biotechnology, College of Medical Science and Technology, Taipei Medical University, Taipei 11031, Taiwan, R.O.C
| | - Jo-Ting Tsai
- Department of Radiology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan, R.O.C.,Department of Radiation Oncology, Shuang Ho Hospital, Taipei Medical University, New Taipei City 23561, Taiwan, R.O.C
| | - Jeng-Fong Chiou
- Department of Radiation Oncology, Taipei Medical University Hospital, Taipei 11031, Taiwan, R.O.C.,Department of Radiology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan, R.O.C.,Taipei Cancer Center, Taipei Medical University, Taipei 11031, Taiwan, R.O.C
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160
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Recurring Amplification at 11q22.1-q22.2 Locus Plays an Important Role in Lymph Node Metastasis and Radioresistance in OSCC. Sci Rep 2017; 7:16051. [PMID: 29167558 PMCID: PMC5700126 DOI: 10.1038/s41598-017-16247-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Accepted: 10/24/2017] [Indexed: 12/21/2022] Open
Abstract
A key feature in the pathogenesis of OSCC is genetic instability, which results in altered expression of genes located in amplified/deleted chromosomal regions. In a previous study we have shown that the amplification of the 11q22.1-q22.2 region, encoding cIAP1 and cIAP2, is associated with lymph node metastasis and poor clinical outcome in OSCC. Here, we validate the aCGH results by nuc ish and detect a weak amplification at the 11q22.1-q22.2 locus in 37% of the 182 samples tested. We find positive correlation of 11q22.1-q22.2 amplification with lymph node metastasis, reduced survival, and increased cancer recurrence, and we observe that patients with 11q22.1-q22.2 amplification fail to respond to radiotherapy. We confirm the concurrent overexpression of cIAP1 and cIAP2 and observe differential subcellular localization of the two proteins in OSCC. To ascertain the roles of cIAP1/cIAP2 in lymph node metastasis and radioresistance, we use an in vitro pre-clinical model and confirm the role of cIAP1 in invasion and the role of cIAP2 in invasion and migration. Studies of other tumor types in which cIAP1 is overexpressed suggest that multi-regimen treatments including SMAC mimetics may be effective. Thus, the evaluation of 11q22.1-q22.2 amplifications in OSCC patients may help choose the most effective treatment.
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161
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Arunkumar G, Deva Magendhra Rao AK, Manikandan M, Prasanna Srinivasa Rao H, Subbiah S, Ilangovan R, Murugan AK, Munirajan AK. Dysregulation of miR-200 family microRNAs and epithelial-mesenchymal transition markers in oral squamous cell carcinoma. Oncol Lett 2017; 15:649-657. [PMID: 29375721 DOI: 10.3892/ol.2017.7296] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Accepted: 09/01/2017] [Indexed: 12/20/2022] Open
Abstract
MicroRNAs (miRNAs) are reported to function as a major component in the cellular signaling circuit, which regulates epithelial-mesenchymal transition (EMT). Dysregulation of the microRNA-200 (miR-200) family and EMT-associated genes enables tumor metastasis and resistance to therapy. The present study profiled miR-200 family members miR-200a, miR-200b, miR-200c, miR-141 and miR-429, and also several EMT-regulatory genes including zinc finger E-box-binding homeobox (ZEB)1, ZEB2, epithelial cadherin and vimentin in 40 oral primary tumors in order to understand their role(s) in oral squamous cell carcinoma (OSCC). The reverse transcription-quantitative polymerase chain reaction was used to analyze each sample. Results demonstrated a significant downregulation of miR-200 family members in tumors with a history of tobacco chewing/smoking (P<0.0006, P=0.0467, P=0.0014, P=0.0087 and P=0.0230, respectively) and undifferentiated pathology (miR-200a, P=0.0067; miR-200c, P=0.0248). EMT markers ZEB2 (P=0.0451) and vimentin (P=0.0071) were significantly upregulated in the oral tumors. Furthermore, ZEB2 antisense RNA1 was overexpressed in 50% of OSCC samples (P=0.0075). EMT-regulatory genes did not exhibit any association with clinical outcome. The present study also analyzed the expression of EMT-regulatory genes in 523 head and neck squamous cell carcinoma (HNSCC) samples from The Cancer Genome Atlas (TCGA) database, and the association with treatment outcome. Analysis of TCGA datasets also demonstrated no significant association in the expression of EMT markers with disease recurrence and treatment outcome. The results of the present study revealed dysregulation of miR-200 family miRNAs and EMT-regulatory genes in OSCC without any significant effect on treatment outcome.
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Affiliation(s)
- Ganesan Arunkumar
- Department of Genetics, Dr. A.L.M. PG Institute of Basic Medical Sciences, University of Madras, Taramani, Chennai 600113, India
| | | | - Mayakannan Manikandan
- Department of Genetics, Dr. A.L.M. PG Institute of Basic Medical Sciences, University of Madras, Taramani, Chennai 600113, India
| | | | - Shanmugam Subbiah
- Center for Oncology, Royapettah Government Hospital and Kilpauk Medical College, Royapettah, Chennai 600014, India
| | - Ramachandran Ilangovan
- Department of Endocrinology, Dr. A.L.M. PG Institute of Basic Medical Sciences, University of Madras, Taramani, Chennai 600113, India
| | - Avaniyapuram Kannan Murugan
- Department of Molecular Oncology, King Faisal Specialist Hospital and Research Centre, Riyadh 11211, Saudi Arabia
| | - Arasambattu Kannan Munirajan
- Department of Genetics, Dr. A.L.M. PG Institute of Basic Medical Sciences, University of Madras, Taramani, Chennai 600113, India
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162
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So YK, Oh D, Choi N, Baek CH, Ahn YC, Chung MK. Efficacy of postoperative neck irradiation for regional control in patients with pN0 oral tongue cancer: Propensity analysis. Head Neck 2017; 40:163-169. [PMID: 29083541 DOI: 10.1002/hed.24980] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Revised: 06/30/2017] [Accepted: 09/15/2017] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND The purpose of this study was to investigate whether adjuvant radiotherapy (RT) is efficacious for regional control and survival in patients with pN0 oral tongue cancer. METHODS Clinicopathological features of 166 patients with pN0 oral tongue cancer were compared between those who underwent adjuvant RT to the neck (neck RT-positive) and those who did not (neck RT-negative). Study endpoints were isolated regional recurrence and 3-year regional recurrence-free survival (RRFS). Propensity score matching was also performed. RESULTS Cox regression analysis did not reveal any significant predictor of isolated regional recurrence, including RT field. Three-year RRFS showed modest improvement in neck RT-positive group compared to neck RT-negative group before (92.2% vs 91.9%) and after propensity analysis (93.8% vs 83.3%), without statistical significance (log-rank P = .85 and .37, respectively). CONCLUSION Despite more frequent unfavorable factors, the neck RT-positive group had a comparable oncologic outcome to the neck RT-negative group, suggesting that a marginal benefit in regional control might be expected from extending the RT field to the neck for pN0 oral tongue cancer.
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Affiliation(s)
- Yoon Kyoung So
- Department of Otorhinolaryngology - Head and Neck Surgery, Inje University College of Medicine, Ilsan Paik Hospital, Goyang-Si, Korea
| | - Dongryul Oh
- Department of Radiation Oncology, Sungkyunkwan University School of Medicine, Samsung Medical Center, Seoul, Korea
| | - Nayeon Choi
- Department of Otorhinolaryngology - Head and Neck Surgery, Sungkyunkwan University School of Medicine, Samsung Medical Center, Seoul, Korea
| | - Chung-Hwan Baek
- Department of Otorhinolaryngology - Head and Neck Surgery, Sungkyunkwan University School of Medicine, Samsung Medical Center, Seoul, Korea
| | - Yong Chan Ahn
- Department of Radiation Oncology, Sungkyunkwan University School of Medicine, Samsung Medical Center, Seoul, Korea
| | - Man Ki Chung
- Department of Otorhinolaryngology - Head and Neck Surgery, Sungkyunkwan University School of Medicine, Samsung Medical Center, Seoul, Korea
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163
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Lian Q, Ma DM, Chen MG, Chen K, Li XJ. Silencing Rab14 represses the proliferation and migration of oral squamous cell carcinoma, and enhances cisplatin sensitivity. Am J Transl Res 2017; 9:4195-4205. [PMID: 28979693 PMCID: PMC5622262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2017] [Accepted: 08/17/2017] [Indexed: 06/07/2023]
Abstract
Oral squamous cell carcinoma (OSCC) is a subtype of head and neck cancer with a relatively poor prognosis. The mechanisms underlying the initiation and progression of OSCC are complex and not yet fully understood; however, this information is critical for developing novel therapeutic targets and improving patient outcome. Rab14, a Ras related protein, has been implicated in multiple forms of cancer. In the present study, we confirmed that Rab14 is overexpression in human OSCC tissue, compared with normal oral mucosa samples. In addition, knockdown of Rab14 exerted potent anti-tumor effects by repressing the proliferation and migration of OSCC cell lines. Moreover, knockdown of Rab14 reduced the expression of Cyclin D1 and CXCR4, at the level of protein and mRNA, both in vitro and in vivo. Additionally, abrogation of Rab14 enhanced cisplatin sensitivity in OSCC cells in vitro and in vivo. Taken together, our data provides evidence for Rab14 as a potential therapeutic target in OSCC treatment.
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Affiliation(s)
- Qing Lian
- Department of Stomatology, The People’s Hospital of ZhenhaiNingbo 315202, Zhejiang Province, PR China
| | - Dong-Mei Ma
- Department of Stomatology, Zhejiang Xiaoshan HospitalHangzhou 311200, Zhejiang Province, PR China
| | - Ming-Gang Chen
- Department of Stomatology, The People’s Hospital of ZhenhaiNingbo 315202, Zhejiang Province, PR China
| | - Ke Chen
- Department of Stomatology, The People’s Hospital of ZhenhaiNingbo 315202, Zhejiang Province, PR China
| | - Xiang-Jun Li
- Department of Stomatology, Zhejiang Xiaoshan HospitalHangzhou 311200, Zhejiang Province, PR China
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Fatimah, Sarsito AS, Wimardhani YS. The ultrastructural surface morphology of oral cancer cells and keratinocytes after exposure to chitosan. ACTA ACUST UNITED AC 2017. [DOI: 10.1088/1742-6596/884/1/012064] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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165
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Wang K, Jin J, Ma T, Zhai H. MiR-139-5p inhibits the tumorigenesis and progression of oral squamous carcinoma cells by targeting HOXA9. J Cell Mol Med 2017; 21:3730-3740. [PMID: 28780773 PMCID: PMC5706525 DOI: 10.1111/jcmm.13282] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Accepted: 05/23/2017] [Indexed: 12/27/2022] Open
Abstract
Our study sought to clarify the effects of microRNA-139-5p (miR-139-5p) in the tumorigenesis and progression of oral squamous cell carcinoma (OSCC) by regulating HOXA9. MiR-139-5p and HOXA9 expression in OSCC tissues, tumour adjacent tissues, OSCC cells and normal cells were tested by qRT-PCR. SAS and CAL-27 cell lines were selected in among four OSCC cell lines and then transfected with miR-139-5p mimics, pEGFP-HOXA9 and cotransfected with miR-139-5p mimics + pEGFP-HOXA9. We used MTT, colony formation, transwell and wound healing assays to analyse cell viability, proliferation, invasion and migration. The target relationship between miR-139-5p and HOXA9 was verified by luciferase reporter assay and Western blot, respectively. MiR-139-5p was down-regulated, whereas HOXA9 was up-regulated in OSCC tissues and cells. The proliferation, invasion and migration ability of SAS and CAL-27 cells in miR-139-5p mimics group were significantly weaker than those in the control group and the miR-NC group (P < 0.01). MiR-139-5p can negatively regulate HOXA9. The proliferation, invasion and migration of SAS and CAL-27 cells in the miR-139-5p mimics + pEGFP-HOXA9 group were not significantly different from those in the blank control and negative control groups (P > 0.05). Our results indicated that miR-139-5p could directly inhibit HOXA9, which might be a potential mechanism in inhibiting the proliferation, invasiveness and migration of OSCC cells.
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Affiliation(s)
- Kai Wang
- Department of Plastic Surgery, Henan Provincial People's Hospital, Zhengzhou, Henan, China
| | - Jun Jin
- Department of Plastic Surgery, Henan Provincial People's Hospital, Zhengzhou, Henan, China
| | - Tengxiao Ma
- Department of Plastic Surgery, Henan Provincial People's Hospital, Zhengzhou, Henan, China
| | - Hongfeng Zhai
- Department of Plastic Surgery, Henan Provincial People's Hospital, Zhengzhou, Henan, China
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166
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Du L, Ma S, Wen X, Chai J, Zhou D. Oral squamous cell carcinoma cells are resistant to doxorubicin through upregulation of miR‑221. Mol Med Rep 2017; 16:2659-2667. [PMID: 28677788 PMCID: PMC5547975 DOI: 10.3892/mmr.2017.6915] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Accepted: 05/03/2017] [Indexed: 12/16/2022] Open
Abstract
Oral squamous cell carcinoma (OSCC) cells are usually resistant to doxorubicin, resulting in limited application of doxorubicin in OSCC treatment. MicroRNA (miR)‑221 has been reported to be involved in the development of OSCC; however, it remains unclear if and how miR‑221 is implicated in modulating the sensitivity of OSCC cells to doxorubicin. In the present study, reverse transcription‑quantitative polymerase chain reaction (RT‑qPCR) was used to assess miR‑221 expression in OSCC cells in response to doxorubicin treatment. In addition, the SCC4 and SCC9 OSCC cell lines were transfected with anti‑miR‑221 oligonucleotides and cell viability and apoptosis following doxorubicin treatment were evaluated using an MTT assay and Annexin V‑fluorescein isothiocyanate/Hoechst double staining, respectively. The mRNA and protein expression levels of tissue inhibitor of metalloproteinase‑3 (TIMP3) in anti‑miR‑221‑transfected cells were assessed using RT‑qPCR and western blot analysis, respectively. Furthermore, a luciferase reporter assay was performed to investigate whether TIMP3 may be a direct target gene of miR‑221. To explore the roles of TIMP3 in miR‑221‑mediated cell responses, TIMP3 expression was silenced following transfection with TIMP3‑targeting small interfering (si)RNA in cells overexpressing miR‑221, and cell viability and apoptosis in response to doxorubicin treatment were measured. The results of the present study demonstrated that miR‑221 expression was upregulated in SCC4 and SCC9 cells following treatment with doxorubicin. However, inhibiting the doxorubicin‑induced upregulation of miR‑221 through transfection with anti‑miR‑221 oligonucleotides led to an increase in the sensitivity of OSCC cells to doxorubicin. In addition, the results indicated that TIMP3 was a direct target of miR‑221 in OSCC cells, as determined by a 3'‑untranslated region luciferase reporter assay. Co‑transfection of cells with anti‑miR‑221 oligonucleotides and TIMP3‑specific small interfering RNA resulted in reduced sensitivity to doxorubicin compared with the cells transfected with the miR‑221 inhibitor alone. In conclusion, these results indicated that OSCC cells are resistant to doxorubicin through upregulation of miR‑221, which in turn downregulates TIMP3. Therefore, silencing miR‑221 or upregulating TIMP3 may be considered promising therapeutic approaches to enhance the sensitivity of OSCC to doxorubicin.
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Affiliation(s)
- Liangzhi Du
- Department of Implant Dentistry, Stomatology Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710004, P.R. China
| | - Siwei Ma
- Department of Implant Dentistry, Stomatology Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710004, P.R. China
| | - Xi Wen
- School of Sports and Health, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006, P.R. China
| | - Juan Chai
- Department of Oral and Maxillofacial Surgery and Stomatology, Xi'an Medical University, Xi'an, Shaanxi 710021, P.R. China
| | - Dangxia Zhou
- Department of Pathology, College of Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
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167
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Irimie AI, Sonea L, Jurj A, Mehterov N, Zimta AA, Budisan L, Braicu C, Berindan-Neagoe I. Future trends and emerging issues for nanodelivery systems in oral and oropharyngeal cancer. Int J Nanomedicine 2017; 12:4593-4606. [PMID: 28721037 PMCID: PMC5500515 DOI: 10.2147/ijn.s133219] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Oral cancer is a prevalent cancer type on a global scale, whose traditional treatment strategies have several drawbacks that could in the near future be overcome through the development of novel therapeutic and prognostic strategies. Nanotechnology provides an alternative to traditional therapy that leads to enhanced efficiency and less toxicity. Various nanosystems have been developed for the treatment of oral cancer, including polymeric, metallic, and lipid-based formulations that incorporate chemotherapeutics, natural compounds, siRNA, or other molecules. This review summarizes the main benefits of using these nanosystems, in parallel with a particular focus on the issues encountered in medical practice. These novel strategies have provided encouraging results in both in vitro and in vivo studies, but few have entered clinical trials. The use of nanosystems in oral cancer has the potential of becoming a valid therapeutic option for patients suffering from this malignancy, considering that clinical trials have already been completed and others are currently being developed.
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Affiliation(s)
| | - Laura Sonea
- MedFuture Research Center for Advanced Medicine
| | - Ancuta Jurj
- Research Center for Functional Genomics and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Nikolay Mehterov
- Department of Medical Biology, Medical University of Plovdiv.,Technological Center for Emergency Medicine, Plovdiv, Bulgaria
| | - Alina Andreea Zimta
- MedFuture Research Center for Advanced Medicine.,Research Center for Functional Genomics and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Liviuta Budisan
- Research Center for Functional Genomics and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Cornelia Braicu
- Research Center for Functional Genomics and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Ioana Berindan-Neagoe
- MedFuture Research Center for Advanced Medicine.,Research Center for Functional Genomics and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania.,Department of Functional Genomics and Experimental Pathology, Ion Chiricuta Oncology Institute, Cluj-Napoca, Romania
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168
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Khiavi MM, Abdal K, Abbasi MM, Hamishehkar H, Aghbali AA, Salehi R, Sina M, Abdollahi B, Fotohi S. Comparison of injectable doxorubicin & its nanodrug complex chemotherapy for the treatment of 4-nitroquinoline-1-oxide induced oral squamous cell carcinoma in rats. Indian J Med Res 2017; 145:112-117. [PMID: 28574023 PMCID: PMC5460556 DOI: 10.4103/ijmr.ijmr_542_14] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Background & objectives: Combination treatments of chemotherapy and nanoparticle drug delivery have shown significant promise in cancer treatment. The aim of the present study was to compare the efficacy of a nanodrug complex with its free form in the treatment of tongue squamous cell carcinoma induced by 4-nitroquinoline-1-oxide in rats. Methods: In this study, 75 male Sprague-Dawley rats were divided into five groups. Oral squamous cell carcinoma (OSCC) was induced by using 4- nitroquinoline-1-oxide (4NQO) as a carcinogen. Newly formulated doxorubicin (DOX)-methotrexate (MTX)-loaded nanoparticles, and free DOX-MTX were administrated intravenously to rats. During the study, the animals were weighed once a week. At the end of the treatment, rats’ tongues were evaluated histopathologically. Results: There was significant difference between the mean weight of rats in groups A and B (P=0.001) and also groups A and K (P<0.001). No significant association was found between the mortality rate of groups. The difference between the severity of dysplasia of treated and untreated groups was significant (P<0.001). Interpretation & conclusions: Our study showed that DOX-MTX nanoparticle complex was more effective than free DOX-MTX in chemotherapy treatment of oral squamous cell carcinoma in rat models. Further investigations are necessary to clarify the advantages and disadvantages of the nanoparticle complex and its potential therapeutic application for different types of cancer.
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Affiliation(s)
- Monir Moradzadeh Khiavi
- Department of Oral & Maxillofacial Pathology, Faculty of Dentistry, Tehran University of Medical Sciences, International Campus, Tehran, Iran
| | - Khadijeh Abdal
- Department of Oral & Maxillofacial Pathology, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Hamed Hamishehkar
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Amir Ala Aghbali
- Department of Oral & Maxillofacial Pathology, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Roya Salehi
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mahmoud Sina
- Department of Oral & Maxillofacial Pathology, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Bita Abdollahi
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Soheila Fotohi
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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169
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PEGylated doxorubicin nanoparticles mediated by HN-1 peptide for targeted treatment of oral squamous cell carcinoma. Int J Pharm 2017; 525:21-31. [DOI: 10.1016/j.ijpharm.2017.04.027] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Revised: 03/03/2017] [Accepted: 04/11/2017] [Indexed: 12/15/2022]
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170
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Borhani S, Mozdarani H, Babalui S, Bakhshandeh M, Nosrati H. In Vitro Radiosensitizing Effects of Temozolomide on U87MG Cell Lines of Human Glioblastoma Multiforme. IRANIAN JOURNAL OF MEDICAL SCIENCES 2017; 42:258-265. [PMID: 28533574 PMCID: PMC5429494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
BACKGROUND Glioma is the most common primary brain tumor with poor prognosis. Temozolomide (TMZ) has been used with irradiation (IR) to treat gliomas. The aim of the present study was to evaluate the cytotoxic and radiosensitizing effect of TMZ when combined with high-dose and high-dose rate of gamma irradiation in vitro. METHODS Two 'U87MG' cell lines and skin fibroblast were cultured and assigned to five groups for 24, 48, and 72 hours. The groups were namely, TMZ group (2000 μM/L), IR group (5 Gy), TMZ plus IR group, control group, and control solvent group. MTT assay was applied to evaluate cell viability. Data were analyzed with SPSS 21.0 software using one-way ANOVA and Kruskal-Wallis test. P<0.05 were considered statistically significant. RESULTS The slope of growth curve U87MG cells in semi-logarithmic scale was equal to 27.36±0.89 hours. The viability of cells was determined for different TMZ and IR treatment groups. In terms of cell viability, there were no significant differences between the control and control solvent groups (P=0.35) and between treated group by IR (5 Gy) alone and TMZ (2000 µM/ml) alone (P=0.15). Data obtained for the cell viability of combined TMZ plus IR in both cell lines compared to TMZ or IR treated group alone showed a significant difference (P=0.002). CONCLUSION The evaluation of cells viability showed that TMZ in combination with IR on glioma cells led to a significant radiosensitivity compared to IR alone.
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Affiliation(s)
- Samira Borhani
- Department of Radiology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hossein Mozdarani
- Department of Medical Genetics, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran,Correspondence: Hossein Mozdarani, Department of Medical Genetics, Faculty of Medical Sciences, Tarbiat Modares University, P. O. Box: 14115-111, Tehran, Iran Tel: +98 21 82883830 Fax: +98 21 88006544
| | - Somayyeh Babalui
- Radiotherapy Oncology, Cancer Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohsen Bakhshandeh
- Radiotherapy Oncology, Cancer Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Hassan Nosrati
- Radiotherapy Oncology, Cancer Research Center, Tehran University of Medical Sciences, Tehran, Iran
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171
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Improving accuracy of RNA-based diagnosis and prognosis of oral cancer by using noninvasive methods. Oral Oncol 2017; 69:62-67. [PMID: 28559022 DOI: 10.1016/j.oraloncology.2017.04.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Revised: 03/23/2017] [Accepted: 04/01/2017] [Indexed: 12/13/2022]
Abstract
RNA-based diagnosis and prognosis of squamous cell carcinoma has been slow to come to the clinic. Improvements in RNA measurement, statistical evaluation, and sample preservation, along with increased sample numbers, have not made these methods reproducible enough to be used clinically. We propose that, in the case of squamous cell carcinoma of the oral cavity, a chief source of variability is sample dissection, which leads to variable amounts of stroma mixed in with tumor epithelium. This heterogeneity of the samples, which requires great care to avoid, makes it difficult to see changes in RNA levels specific to tumor cells. An evaluation of the data suggests that, paradoxically, brush biopsy samples of oral lesions may provide a more reproducible method than surgical acquisition of samples for miRNA measurement. The evidence also indicates that body fluid samples can show similar changes in miRNAs with oral squamous cell carcinoma (OSCC) as those seen in tumor brush biopsy samples - suggesting much of the miRNA in these samples is coming from the same source: tumor epithelium. We conclude that brush biopsy or body fluid samples may be superior to surgical samples in allowing miRNA-based diagnosis and prognosis of OSCC in that they feature a rapid method to obtain homogeneous tumor cells and/or RNA.
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172
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A tetrameric peptide derived from bovine lactoferricin as a potential therapeutic tool for oral squamous cell carcinoma: A preclinical model. PLoS One 2017; 12:e0174707. [PMID: 28358840 PMCID: PMC5373611 DOI: 10.1371/journal.pone.0174707] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Accepted: 03/14/2017] [Indexed: 11/29/2022] Open
Abstract
Oral squamous cell carcinoma is the fifth most common epithelial cancer in the world, and its current clinical treatment has both low efficiency and poor selectivity. Cationic amphipathic peptides have been proposed as new drugs for the treatment of different types of cancer. The main goal of the present work was to determine the potential of LfcinB(20–25)4, a tetrameric peptide based on the core sequence RRWQWR of bovine lactoferricin LfcinB(20–25), for the treatment of OSCC. In brief, OSCC was induced in the buccal pouch of hamsters by applying 7,12-Dimethylbenz(a)anthracene, and tumors were treated with one of the following peptides: LfcinB(20–25)4, LfcinB(20–25), or vehicle (control). Lesions were macroscopically evaluated every two days and both histological and serum IgG assessments were conducted after 5 weeks. The size of the tumors treated with LfcinB(20–25)4 and LfcinB(20–25) was smaller than that of the control group (46.16±4.41 and 33.92±2.74 mm3 versus 88.77±10.61 mm3, respectively). Also, LfcinB(20–25)4 caused acellularity in the parenchymal tumor compared with LfcinB(20–25) and vehicle treatments. Furthermore, our results demonstrated that both LfcinB(20–25)4 and LfcinB(20–25) induced higher degree of apoptosis relative to the untreated tumors (75–86% vs 8%, respectively). Moreover, although the lowest inflammatory response was achieved when LfcinB(20–25)4 was used, this peptide appeared to induce higher levels of IgG antibodies relative to the vehicle and LfcinB(20–25). In addition the cellular damage and selectivity of the LfcinB(20–25)4 peptide was evaluated in vitro. These assays showed that LfcinB(20–25)4 triggers a selective necrotic effect in the carcinoma cell line. Cumulatively, these data indicate that LfcinB(20–25)4 could be considered as a new therapeutic agent for the treatment of OSCC.
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173
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Madrid CC, de Pauli Paglioni M, Line SR, Vasconcelos KG, Brandão TB, Lopes MA, Santos-Silva AR, De Goes MF. Structural Analysis of Enamel in Teeth from Head-and-Neck Cancer Patients Who Underwent Radiotherapy. Caries Res 2017; 51:119-128. [DOI: 10.1159/000452866] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2016] [Accepted: 10/24/2016] [Indexed: 11/19/2022] Open
Abstract
Objective: To analyze macroscopic, microscopic, and ultrastructural aspects of enamel from head-and-neck cancer patients submitted to radiotherapy. Materials and Methods: Twenty sound extracted permanent molars were used and divided into 2 groups. The experimental group consisted of 10 molars from head-and-neck cancer patients submitted to radiotherapy with total doses that ranged from 50 to 70 Gy. Ten molars from patients who did not receive radiotherapy were matched with experimental-group samples by anatomic tooth group and comprised the control group. To perform a macroscopic analysis, standardized photos of different enamel faces were taken with a camera. Teeth were subjected to longitudinal cuts and hand polished to a final thickness of 0.1 mm. Enamel was analyzed under polarized light microscopy, and optical retardation values of birefringence were calculated in cervical, cusp, and occlusal pit areas. Subsequently, the same enamel areas were analyzed by scanning electron microscopy. Data from optical retardation values were statistically analyzed by 2-way ANOVA and Fisher's test (α < 0.05). Results: No macroscopic differences were observed between the irradiated and control groups. Polarized light microscopy analysis revealed that cervical enamel exhibited darker areas characterized by discrete birefringence patterns compared to the control enamel. Optical retardation values were only significantly different in the cervical enamel of the irradiated and control groups (p < 0.0001). Scanning electron microscopy analysis revealed more evident interprismatic spaces in the cervical and outer cusp enamel of irradiated samples. Conclusions: Head-and-neck radiotherapy reduced optical retardation values of birefringence in cervical enamel, and the interprismatic spaces became more evident.
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174
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Wen Z, Jia Q, Kang X, Lou Y, Zou L, Yang J, Gao J, Han L, Li X. Antitumor activity of recombinant RGD-IFN-α2a-core fusion protein in vitro. Anticancer Drugs 2017; 28:31-39. [PMID: 27759573 PMCID: PMC5131691 DOI: 10.1097/cad.0000000000000421] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2016] [Accepted: 07/24/2016] [Indexed: 12/14/2022]
Abstract
Interferon (IFN) regulates immune responses and antitumor activity. Arginine-glycine-aspartic acid (RGD) peptides can specifically bind to integrin αvβ3, a transmembrane receptor that is highly expressed on the surface of various cancer cells. In this study, we expressed recombinant RGD-IFN-α2a-core fusion proteins and assessed their antitumor activity in vitro. Two RGD-IFN-α2a-core fusion proteins and a negative control protein were expressed in vitro. These two RGD-IFN-α2a-core fusion proteins could bind the tumor cell surface specifically and did not bind to normal cells. RGD-IFN-α2a-core fusion protein treatment of tumor cells significantly reduced cell viability and induced apoptosis in a dose-dependent manner. At the 'mRNA' level, both proteins could upregulate CASP3 expression. These data indicate that both laboratory-engineered RGD-IFN-α2a-core fusion proteins could bind the surface of tumor cells and induce apoptosis in vitro. Further studies will investigate the in-vivo antitumor activities of the RGD-IFN-α2a-core fusion proteins.
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Affiliation(s)
- Zhengwei Wen
- Department of Nuclear Medicine, School of Basic Medical Sciences
| | - Qunying Jia
- The First Hospital of Changsha City, Kaifu District, Changsha, China
| | - Xiaojuan Kang
- Department of Nuclear Medicine, School of Basic Medical Sciences
| | - Yongliang Lou
- Zhejiang Provincial Key Lab of Medical Genetics
- Zhejiang Provincial Key Lab for Technology and Application of Model Organisms
- Institute of Medical Virology, School of Laboratory Medicine and Life Science, Wenzhou Medical University, Wenzhou
| | - Lilin Zou
- Zhejiang Provincial Key Lab of Medical Genetics
- Zhejiang Provincial Key Lab for Technology and Application of Model Organisms
| | - Jifeng Yang
- Zhejiang Provincial Key Lab of Medical Genetics
- Zhejiang Provincial Key Lab for Technology and Application of Model Organisms
| | - Jimin Gao
- Zhejiang Provincial Key Lab of Medical Genetics
- Zhejiang Provincial Key Lab for Technology and Application of Model Organisms
| | - Liping Han
- Department of Nuclear Medicine, School of Basic Medical Sciences
| | - Xiang Li
- Zhejiang Provincial Key Lab of Medical Genetics
- Zhejiang Provincial Key Lab for Technology and Application of Model Organisms
- Institute of Medical Virology, School of Laboratory Medicine and Life Science, Wenzhou Medical University, Wenzhou
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175
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Puri T. Neoadjuvant chemotherapy for unresectable oral cancers: Optimizing outcomes? Indian J Cancer 2017; 54:394-396. [DOI: 10.4103/ijc.ijc_257_17] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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176
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Dai D, Chen H, Tang J, Tang Y. Inhibition of mTOR/eIF4E by anti-viral drug ribavirin effectively enhances the effects of paclitaxel in oral tongue squamous cell carcinoma. Biochem Biophys Res Commun 2016; 482:1259-1264. [PMID: 27932243 DOI: 10.1016/j.bbrc.2016.12.025] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2016] [Accepted: 12/03/2016] [Indexed: 01/03/2023]
Abstract
Upregulation of eIF4E is associated with poor clinical outcome in many human cancers and represents a potential therapeutic target. However, the function of eIF4E remains unknown in oral tongue squamous cell carcinoma (OTSCC). In this work, we show that ribavirin, an anti-viral drug, effectively augments sensitivity of OTSCC cells to paclitaxel via inhibiting mTOR/eIF4E signaling pathway. Ribavirin dose-dependently inhibits proliferation and induces apoptosis in SCC-9 and CAL27 cells. Combination of ribavirin and paclitaxel are more effective in inhibiting proliferation and inducing apoptosis in OTSCC cells. Importantly, the in vivo efficacy of ribavirin and its synergism with paclitaxel is confirmed by two independent OTSCC xenograft mouse models. Mechanistically, ribavirin significantly decreases mTOR/eIF4E signaling pathway in OTSCC cells via suppressing phosphorylation of Akt, mTOR, 4EBP1 and eIF4E. Overexpression of the phosphor-mimetic form of eIF4E (eIF4E S209D) but not the nonphosphorylatable form (eIF4E S209A) reverses the effects of ribavirin, confirming that eIF4E inhibition is the mechanism of action of ribavirin in OTSCC cells. In addition, eIF4E depletion significantly enhances the anti-proliferative and pro-apoptotic effects of paclitaxel, demonstrating the critical role of eIF4E in OTSCC cell response to paclitaxel. Our work is the first to demonstrate the efficacy of ribavirin as a single agent and synergism as combination with paclitaxel in OTSCC in vitro and in vivo. Our findings also demonstrate the therapeutic value of inhibiting eIF4E in OTSCC treatment.
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Affiliation(s)
- Dehua Dai
- Department of Stomatology, Jingzhou Central Hospital, The Second Clinical Medical College, Yangtze University, Jingzhou, People's Republic of China
| | - Hujie Chen
- Department of Stomatology, Jingzhou Central Hospital, The Second Clinical Medical College, Yangtze University, Jingzhou, People's Republic of China
| | - Jing Tang
- Department of Stomatology, Jingzhou Central Hospital, The Second Clinical Medical College, Yangtze University, Jingzhou, People's Republic of China
| | - Yi Tang
- Department of Stomatology, Jingzhou Central Hospital, The Second Clinical Medical College, Yangtze University, Jingzhou, People's Republic of China.
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177
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Xiong L, Tang Y, Liu Z, Dai J, Wang X. BCL-2 inhibition impairs mitochondrial function and targets oral tongue squamous cell carcinoma. SPRINGERPLUS 2016; 5:1626. [PMID: 27722045 PMCID: PMC5031576 DOI: 10.1186/s40064-016-3310-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Accepted: 09/12/2016] [Indexed: 01/07/2023]
Abstract
Purpose To understand the role of Bcl-2 overexpression in oral tongue squamous cell carcinoma (OTSCC) patients and investigate the efficacy of targeting Bcl-2 in OTSCC. Methods The expression level of Bcl-2 on normal tongue cells and OTSCC cells were measured by real-time PCR and western blotting. The functional roles of Bcl-2 were examined by MTS, flow cytometry and xenograft cancer mouse model. Mechanism studies were performed by analyzing mitochondrial functions in a panel of OTSCC cell lines. Results Bcl-2 is up-regulated at mRNA and protein levels in a panel of OTSCC cell lines compared to normal tongue epithelial cells (NTEC). Importantly, overexpression of Bcl-2 confers resistance of OTSCC cells to chemotherapeutic drug cisplatin treatment. Overexpression of Bcl-2 in NTEC significantly increased cell growth. In contrast, inhibition of Bcl-2 by genetic and pharmacological approaches inhibits proliferation and induces apoptosis in OTSCC cells. Mechanistically, Bcl-2 inhibitor ABT-199 impairs mitochondrial functions as shown by the decreased levels of mitochondrial membrane potential, mitochondrial respiration and ATP, and the increased levels of ROS in OTSCC cells. In addition, ABT-199 inhibits proliferation and induces apoptosis and mitochondrial dysfunctions in NTEC cells, but to a less extent than in OTSCC cells. We further show that ABT-199 augments the effects of cisplatin in eliminating OTSCC cells in in vitro tongue cancer cellular system and in vivo tongue cancer xenograft mouse model. Conclusions Inhibition of Bcl-2 effectively targets OTSCC cells through inhibiting proliferation and inducing apoptosis. Inhibition of Bcl-2 also augments the inhibitory effects of cisplatin in vitro and in vivo. Electronic supplementary material The online version of this article (doi:10.1186/s40064-016-3310-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Lei Xiong
- Department of Oral Medicine, The Second Clinical Medical College, Yangtze University, Jingzhou Central Hospital, Jingzhou, People's Republic of China
| | - Yi Tang
- Department of Oral Medicine, The Second Clinical Medical College, Yangtze University, Jingzhou Central Hospital, Jingzhou, People's Republic of China
| | - Zhaoyang Liu
- Department of Oral Medicine, The Second Clinical Medical College, Yangtze University, Jingzhou Central Hospital, Jingzhou, People's Republic of China
| | - Jing Dai
- Department of Oral Medicine, The Second Clinical Medical College, Yangtze University, Jingzhou Central Hospital, Jingzhou, People's Republic of China
| | - Xiaozhou Wang
- Department of Clinical Medicine, Hubei College of Chinese Medicine, Academy Road 87, Jingzhou, 434020 People's Republic of China
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da Silva SD, Marchi FA, Xu B, Bijian K, Alobaid F, Mlynarek A, Rogatto SR, Hier M, Kowalski LP, Alaoui-Jamali MA. Predominant Rab-GTPase amplicons contributing to oral squamous cell carcinoma progression to metastasis. Oncotarget 2016; 6:21950-63. [PMID: 26110570 PMCID: PMC4673138 DOI: 10.18632/oncotarget.4277] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2015] [Accepted: 06/03/2015] [Indexed: 11/25/2022] Open
Abstract
Metastatic oral squamous cell carcinoma (OSCC) is frequently associated with recurrent gene abnormalities at specific chromosomal loci. Here, we utilized array comparative genomic hybridization and genome-wide screening of metastatic and non-metastatic tongue tumors to investigate genes potentially contributing to OSCC progression to metastasis. We identified predominant amplifications of chromosomal regions that encompass the RAB5, RAB7 and RAB11 genes (3p24-p22, 3q21.3 and 8p11-12, respectively) in metastatic OSCC. The expression of these Rab GTPases was confirmed by immunohistochemistry in OSCC tissues from a cohort of patients with a follow-up of 10 years. A significant overexpression of Rab5, Rab7 and Rab11 was observed in advanced OSCC cases and co-overexpression of these Rabs was predictive of poor survival (log-rank test, P = 0.006). We generated a Rab interaction network and identified central Rab interactions of relevance to metastasis signaling, including focal adhesion proteins. In preclinical models, mRNA and protein expression levels of these Rab members were elevated in a panel of invasive OSCC cell lines, and their down-regulation prevented cell invasion at least in part via inhibition of focal adhesion disassembly. In summary, our results provide insights into the cooperative role of Rab gene amplifications in OSCC progression and support their potential utility as prognostic markers and therapeutic approach for advanced OSCC.
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Affiliation(s)
- Sabrina Daniela da Silva
- Department of Otolaryngology Head and Neck Surgery, Sir Mortimer B. Davis-Jewish General Hospital, Canada.,Segal Cancer Centre and Lady Davis Institute for Medical Research, Sir Mortimer B. Davis-Jewish General Hospital, Departments of Medicine, Oncology, and Pharmacology and Therapeutics, Faculty of Medicine, McGill University, Canada.,Department of Head and Neck Surgery and Otorhinolaryngology, AC Camargo Cancer Center and National Institute of Science and Technology on Oncogenomics (INCITO), Brazil
| | - Fabio Albuquerque Marchi
- NeoGene Laboratory, Department of Urology, Faculty of Medicine, UNESP, and International Research Center (CIPE), AC Camargo Cancer Center, Brazil.,Inter-Institutional Grad Program on Bioinformatics, University of São Paulo, Brazil
| | - Bin Xu
- Segal Cancer Centre and Lady Davis Institute for Medical Research, Sir Mortimer B. Davis-Jewish General Hospital, Departments of Medicine, Oncology, and Pharmacology and Therapeutics, Faculty of Medicine, McGill University, Canada
| | - Krikor Bijian
- Segal Cancer Centre and Lady Davis Institute for Medical Research, Sir Mortimer B. Davis-Jewish General Hospital, Departments of Medicine, Oncology, and Pharmacology and Therapeutics, Faculty of Medicine, McGill University, Canada
| | - Faisal Alobaid
- Department of Otolaryngology Head and Neck Surgery, Sir Mortimer B. Davis-Jewish General Hospital, Canada
| | - Alex Mlynarek
- Department of Otolaryngology Head and Neck Surgery, Sir Mortimer B. Davis-Jewish General Hospital, Canada
| | - Silvia Regina Rogatto
- NeoGene Laboratory, Department of Urology, Faculty of Medicine, UNESP, and International Research Center (CIPE), AC Camargo Cancer Center, Brazil
| | - Michael Hier
- Department of Otolaryngology Head and Neck Surgery, Sir Mortimer B. Davis-Jewish General Hospital, Canada
| | - Luiz Paulo Kowalski
- Department of Head and Neck Surgery and Otorhinolaryngology, AC Camargo Cancer Center and National Institute of Science and Technology on Oncogenomics (INCITO), Brazil
| | - Moulay A Alaoui-Jamali
- Segal Cancer Centre and Lady Davis Institute for Medical Research, Sir Mortimer B. Davis-Jewish General Hospital, Departments of Medicine, Oncology, and Pharmacology and Therapeutics, Faculty of Medicine, McGill University, Canada
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179
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Ravi KS, Naithani M, Kaur S, Reddy K, Pasi R. Abnormal Nuclear Variations in Response to Radiotherapy- As a Tool in Treatment Planning and Assessment of Prognosis. J Clin Diagn Res 2016; 10:AC08-12. [PMID: 27656425 PMCID: PMC5028437 DOI: 10.7860/jcdr/2016/19907.8338] [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: 03/02/2016] [Accepted: 05/26/2016] [Indexed: 11/24/2022]
Abstract
INTRODUCTION The treatment approaches for oral squamous cell carcinoma (OSCC) include single management with surgery, radiotherapy, along with chemotherapy or various combinations of these modalities. The estimation of radio sensitivity of individual tumours is essential for planning the optimum radiation schedule for each patient. Assessment of radiation induced histo morphological changes in the nucleus is a known marker of radiosensitivity. AIM The aim of this study was to establish the relationship between nuclear changes with radiation dose and to investigate the prospect of utilizing them as an assay to predict tumour response to radiotherapy in oral cancers. MATERIALS AND METHODS The present study included 50 patients (age range of 30-65yrs) with histopathologically confirmed squamous cell carcinoma of oral mucosa and being treated by radiotherapy alone with a radiation dose schedule of 4, 14, 24 and 60 Gy respectively at 2(nd), 7(th), 12(th) and 30(th) day. From the included patients, smear of the buccal mucosa was collected and was air dried and fixed with methanol. The Nuclear changes of Micronucleus (MN), Nuclear Budding (NB) and Multinucleation (MNU) were evaluated under the bright field microscopy after staining with Giemsa and May-Grunwald's stain. RESULTS Out of the 50, 37(74%) were males and 13(26%) were females (Ratio 3:1). The mean percentage increase of MN and MNU were found to be statistically significant (p=0.001) when compared with pre-treatment day. Similar findings were seen with NB, except between pretreatment and after 14 Gy (p-0.110). In the present study the measurement of relative increment index done in respect to all nuclear abnormalities show a sustained increase with increasing dosage of radiation. CONCLUSION The present study, was undertaken to explore the possibility of establishing a relationship between the frequencies of nuclear abnormalities in patients with oral cancer with applied dosage and duration of radiotherapy. The progressive increase in Micronucleus and Multinucleation indices with increasing dose of radiation proves that these parameters can be used as indicators for assessing the response of tumour for radiotherapy. These parameters can be used as prognostic indicator in oral carcinoma cases undergoing radiotherapy.
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Affiliation(s)
- Kumar Satish Ravi
- Assistant Professor, Department of Anatomy, AIIMS, Rishikesh, Uttarakhand, India
| | - Manisha Naithani
- Assistant Professor, Department of Biochemistry, AIIMS, Rishikesh, Uttarakhand, India
| | - Sohinder Kaur
- Director Professor, Department of Anatomy, Lady Hardinge Medical College, New Delhi, India
| | - K.S. Reddy
- Professor and Head, Department of Radiotherapy, MGMC & RIPuducherry, Tamil Nadu, India
| | - Rachna Pasi
- Consultant, Paediatrics, Govt. Hospital, Rishikesh, Uttarakhand, India
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Jiang F, Zhou L, Wei C, Zhao W, Yu D. Slug inhibition increases radiosensitivity of oral squamous cell carcinoma cells by upregulating PUMA. Int J Oncol 2016; 49:709-19. [PMID: 27277529 DOI: 10.3892/ijo.2016.3570] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2016] [Accepted: 05/23/2016] [Indexed: 11/05/2022] Open
Abstract
As a new strategy, radio-gene therapy was widely used for the treatment of cancer patients in recent few years. Slug was involved in the radioresistance of various cancers and has been found to have an anti-apoptotic effect. This study aims to investigate whether the modulation of Slug expression by siRNA affects oral squamous cell carcinoma sensitivity to X-ray irradiation through upregulating PUMA. Two oral squamous cell carcinoma cell lines (HSC3 and HSC6) were transfected with small interfering RNA (siRNA) targeting Slug and subjected to radiotherapy in vitro. After transfection with Slug siRNA, both HSC3 and HSC6 cells showed relatively lower expression of Slug and higher expression of PUMA. The Slug siRNA transfected cells showed decreased survival and proliferation rates, an increased apoptosis rate and enhanced radiosensitivity to X-ray irradiation. Our results revealed that Slug siRNA transfection in combination with radiation increased the expression of PUMA, which contributed to radiosensitivity of oral squamous cell carcinoma cells. Thus, controlling the expression of Slug might contribute to enhance sensitivity of HSC3 and HSC6 cells toward X-ray irradiation in vitro by upregulating PUMA.
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Affiliation(s)
- Fangfang Jiang
- Department of Oral and Maxillofacial Surgery, Guanghua School of Stomatology, Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong 510055, P.R. China
| | - Lijie Zhou
- Department of Oral and Maxillofacial Surgery, Guanghua School of Stomatology, Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong 510055, P.R. China
| | - Changbo Wei
- Department of Oral and Maxillofacial Surgery, Guanghua School of Stomatology, Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong 510055, P.R. China
| | - Wei Zhao
- Department of Oral and Maxillofacial Surgery, Guanghua School of Stomatology, Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong 510055, P.R. China
| | - Dongsheng Yu
- Department of Oral and Maxillofacial Surgery, Guanghua School of Stomatology, Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong 510055, P.R. China
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181
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Regenerative Engineering in Maxillofacial Reconstruction. REGENERATIVE ENGINEERING AND TRANSLATIONAL MEDICINE 2016. [DOI: 10.1007/s40883-016-0009-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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182
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Increased Risk of Oral Cancer in Patients With Inflammatory Bowel Diseases. Clin Gastroenterol Hepatol 2016; 14:413-20. [PMID: 26499929 DOI: 10.1016/j.cgh.2015.09.041] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2015] [Revised: 09/29/2015] [Accepted: 09/30/2015] [Indexed: 02/07/2023]
Abstract
BACKGROUND & AIMS Epidemiology studies have consistently found an increased risk of oral malignancies in organ transplant recipients, patients with graft-versus-host disease, and people with human immunodeficiency virus infection. We assessed the risk of oral cancer in patients with inflammatory bowel diseases (IBD). METHODS We collected data on 7294 patients with IBD (3785 women) seen at Mount Sinai Medical Center, New York, from 2000 through 2011. The expected incidence of oral cancer was calculated for each sex-specific and 5-year age-specific stratum by specific incidence rates using the Surveillance, Epidemiology and End Results 18 registry data (2000-2011), adjusted for age to the 2000 United States population (census P25-1130). RESULTS Eleven patients (7 men) were found to have biopsy-proven oral cancer. Six patients had cancer of the tongue; 2 patients had cancer of the hard palate; and the remaining 3 had tonsillar, buccal, or mandibular sarcoma. Before the cancer diagnosis, IBD had been treated in 4 patients with azathioprine or mercaptopurine, in 1 patient with infliximab, and 3 in patients with combination of biologic agents and azathioprine; 4 of the patients had not been treated for IBD. The age- and sex-adjusted standardized incidence ratio (SIR) for oral cancer in patients with IBD was 9.77 (95% confidence interval [CI], 5.14-16.98). In women, the SIR was 12.07 (95% CI, 3.84-29.11), and in men the SIR was 8.49 (95% CI, 3.71-16.78). The age-adjusted SIR for tongue cancer was 18.91 (95% CI, 7.66-39.33): 17.06 for men (95% CI, 5.42-41.15) and 22.10 for women (95% CI, 3.70-73.01). CONCLUSIONS We found patients with IBD to be at increased risk for oral cancers, especially tongue cancer. Women are at higher risk than men.
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183
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Murugan AK, Munirajan AK, Alzahrani AS. MicroRNAs: Modulators of theRasOncogenes in Oral Cancer. J Cell Physiol 2015; 231:1424-31. [DOI: 10.1002/jcp.25269] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2015] [Accepted: 11/30/2015] [Indexed: 12/13/2022]
Affiliation(s)
- Avaniyapuram Kannan Murugan
- Department of Molecular Oncology; King Faisal Specialist Hospital and Research Center; Riyadh Kingdom of Saudi Arabia
| | - Arasambattu Kannan Munirajan
- Department of Genetics; Dr. ALM PG Institute of Basic Medical Sciences; University of Madras; Taramani Chennai India
| | - Ali S. Alzahrani
- Department of Molecular Oncology; King Faisal Specialist Hospital and Research Center; Riyadh Kingdom of Saudi Arabia
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184
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Katsanos KH, Roda G, Brygo A, Delaporte E, Colombel JF. Oral Cancer and Oral Precancerous Lesions in Inflammatory Bowel Diseases: A Systematic Review. J Crohns Colitis 2015; 9:1043-52. [PMID: 26163301 DOI: 10.1093/ecco-jcc/jjv122] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2015] [Accepted: 07/03/2015] [Indexed: 12/29/2022]
Abstract
Oral cancer is historically linked to well-known behavioural risk factors such as tobacco smoking and alcohol consumption. Other risk factors include age over 40, male sex, several dietary factors, nutritional deficiencies, viruses, sexually transmitted infections, human papillomavirus, chronic irritation, and possibly genetic predisposition. Precancerous lesions in the oral cavity include leukoplakia, erythroplakia, and lichen planus. Histology of oral cancer varies widely but the great majority are squamous cell carcinomas.Epidemiological studies and cancer registries have shown a consistently increased risk of oral malignancies in kidney, bone marrow, heart, or liver transplantation, in graft vs host disease, and in patients with HIV infection. Because of the increasing use of immunosuppressive drugs in patients with inflammatory bowel disease, it is useful to more accurately delineate the consequences of chronic immunosuppression to the oral cavity. Oral cancer and precancerous oral lesions in patients with inflammatory bowel disease [IBD] have been scarcely reported and reviews on the topic are lacking.We conducted a literature search using the terms and variants of all cancerous and precancerous oral manifestations of inflammatory bowel diseases. By retrieving the existing literature, it is evident that patients with IBD belong to the high-risk group of developing these lesions, a phenomenon amplified by the increasing HPV prevalence. Education on modifiable risk behaviours in patients with oral cancer is the cornerstone of prevention.Oral screening should be performed for all IBD patients, especially those who are about to start an immunosuppressant or biological drug.
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Affiliation(s)
- Konstantinos H Katsanos
- Henry D. Janowitz Division of Gastroenterology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Giulia Roda
- Henry D. Janowitz Division of Gastroenterology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Alexandre Brygo
- Department of Stomatology, Centre Hospitalier Régional Universitaire de Lille, Lille, France
| | - Emmanuel Delaporte
- Department of Dermatology, Centre Hospitalier Régional Universitaire de Lille, Lille, France
| | - Jean-Frédéric Colombel
- Henry D. Janowitz Division of Gastroenterology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
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Ribeiro ILA, Medeiros JJD, Rodrigues LV, Valença AMG, Lima Neto EDA. Factors associated with lip and oral cavity cancer. REVISTA BRASILEIRA DE EPIDEMIOLOGIA 2015; 18:618-29. [DOI: 10.1590/1980-5497201500030008] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2014] [Accepted: 02/04/2015] [Indexed: 11/22/2022] Open
Abstract
PURPOSE: This study aimed to identify factors associated with the occurrence of primary cancer of the lip and oral cavity regions compared to other types of head and neck cancers according to demographic, socioeconomic data and lifestyle, in Brazil, from 2000 to 2011. METHODS: A study was conducted using Hospital Cancer Records (Instituto Nacional do Câncer), from 2000 to 2011, totaling 23,153 cases. Data were analyzed by binary logistic regression (response category: primary cancers located in the lip and oral cavity; comparison category; other types of primary cancer in the head and neck, which does not affect the lip and oral cavity) at a significance level α = 5%. RESULTS: The study showed factors associated with higher incidence of cancer in the lip and oral cavity: being of advanced age (OR = 1.16), not having a family history of cancer (OR = 2.38), alcohol consumption (OR = 1.17); former tobacco use (OR = 1.51) or current tobacco use (OR = 1.65); having a previous diagnosis of cancer without treatment (OR =1.66). Being female (OR = 0.92), having completed basic (OR = 0.71) and higher (OR = 0.46) education and having previous diagnosis of cancer with treatment (OR = 0.74) constituted factors associated with lower prevalence of cancer of the lip and oral cavity. CONCLUSION: Age, absence of family history of cancer, smoking habits and alcohol consumption, and previous diagnosis of cancer without treatment were associated with a higher incidence of cancer of the lip and oral cavity.
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186
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Rivera C. Essentials of oral cancer. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2015; 8:11884-11894. [PMID: 26617944 PMCID: PMC4637760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 07/01/2015] [Accepted: 08/20/2015] [Indexed: 06/05/2023]
Abstract
Oral cancer is one of the 10 most common cancers in the world, with a delayed clinical detection, poor prognosis, without specific biomarkers for the disease and expensive therapeutic alternatives. This review aims to present the fundamental aspects of this cancer, focused on squamous cell carcinoma of the oral cavity (OSCC), moving from its definition and epidemiological aspects, addressing the oral carcinogenesis, oral potentially malignant disorders, epithelial precursor lesions and experimental methods for its study, therapies and future challenges. Oral cancer is a preventable disease, risk factors and natural history is already being known, where biomedical sciences and dentistry in particular are likely to improve their poor clinical indicators.
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Affiliation(s)
- César Rivera
- Department of Basic Biomedical Sciences, University of Talca (UTALCA) TalcaMaule Region, Chile
- Department of Oral Diagnosis, School of Dentistry, State University of Campinas (UNICAMP) PiracicabaSão Paulo, Brazil
- Mass Spectrometry Laboratory, Brazilian Biosciences National Laboratory (LNBio), National Center for Research in Energy and Materials (CNPEM) CampinasSão Paulo, Brazil
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187
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Liang FP, Lien JC, Wu YH, Chen CS, Juang SH. Em08red, a dual functional antiproliferative emodin analogue, is a downregulator of ErbB2 expression and inducer of intracellular oxidative stress. DRUG DESIGN DEVELOPMENT AND THERAPY 2015; 9:1499-510. [PMID: 25792810 PMCID: PMC4362900 DOI: 10.2147/dddt.s66647] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Expression of ErbB2 protein is inversely correlated with the prognosis in cancer patients. Consequently, strategies targeting ErbB2 remain an attractive option in treating several types of malignancies, including oral cancer. In addition, many studies have shown that emodin and emodin derivatives are able to inhibit growth of ErbB2-overexpressing tumor cells. In this study, a series of computer modeling-generated emodin analogues were synthesized and tested for their antiproliferative activity against oral cancer cell lines overexpressing ErbB2. Among these analogues, em08red (1,8-dihydroxy-9(10H)-anthracenone) demonstrated potent antiproliferative activity against all three tested ErbB2-overexpressing cell lines, ie, FaDu, HSC3, and OECM1. Treatment with em08red significantly downregulated activation of ErbB2 as well as the ErbB2 protein expression level in the tested cell lines and induced G2 arrest. Antiapoptosis protein (Bcl-xl and Bcl-2) expression levels were also downregulated, and active caspase-3 and caspase-9 was detected in cells after treatment with em08red. Moreover, treatment with em08red stimulated production of cytotoxic reactive oxygen species in treated cells, and this could be partially reversed by pretreatment with N-acetylcysteine. Overall, we demonstrated inhibition of ErbB2 function and induction of reactive oxygen species in tumor cells by em08red, which prevented proliferation of tumor cells and induced apoptotic cell death.
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Affiliation(s)
- Fong-Pin Liang
- Graduate Institute of Pharmaceutical Chemistry, China Medical University Hospital, Taichung, Taiwan
| | - Jin-Cherng Lien
- Graduate Institute of Pharmaceutical Chemistry, China Medical University Hospital, Taichung, Taiwan
| | - Yu-Hua Wu
- School of Pharmacy and Department of Pediatrics, Children's Hospital, China Medical University Hospital, Taichung, Taiwan
| | - Chien-Shu Chen
- School of Pharmacy and Department of Pediatrics, Children's Hospital, China Medical University Hospital, Taichung, Taiwan
| | - Shin-Hun Juang
- Graduate Institute of Pharmaceutical Chemistry, China Medical University Hospital, Taichung, Taiwan ; School of Pharmacy and Department of Pediatrics, Children's Hospital, China Medical University Hospital, Taichung, Taiwan ; Department of Medical Research, China Medical University Hospital, Taichung, Taiwan
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188
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Aso T, Matsuo M, Kiyohara H, Taguchi K, Rikimaru F, Shimokawa M, Segawa Y, Higaki Y, Umeno H, Nakashima T, Masuda M. Induction of CD44 variant 9-expressing cancer stem cells might attenuate the efficacy of chemoradioselection and Worsens the prognosis of patients with advanced head and neck cancer. PLoS One 2015; 10:e0116596. [PMID: 25751671 PMCID: PMC4353624 DOI: 10.1371/journal.pone.0116596] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2014] [Accepted: 12/12/2014] [Indexed: 12/22/2022] Open
Abstract
Background At our institute, a chemoradioselection strategy has been used to select patients for organ preservation on the basis of response to an initial 30–40 Gy concurrent chemoradiotherapy (CCRT). Patients with a favorable response (i.e., chemoradioselected; CRS) have demonstrated better outcomes than those with an unfavorable response (i.e., nonchemoradioselected; N-CRS). Successful targeting of molecules that attenuate the efficacy of chmoradioselection may improve results. Thus, the aim of this study was to evaluate the association of a novel cancer stem cell (CSC) marker, CD44 variant 9 (CD44v9), with cellular refractoriness to chemoradioselection in advanced head and neck squamous cell carcinoma (HNSCC). Materials and Methods Through a medical chart search, 102 patients with advanced HNSCC treated with chemoradioselection from 1997 to 2008 were enrolled. According to our algorithm, 30 patients were CRC following induction CCRT and 72 patients were N-CRS. Using the conventional immunohistochemical technique, biopsy specimens and surgically removed tumor specimens were immunostained with the anti-CD44v9 specific antibodies. Results The intrinsic expression levels of CD44v9 in the biopsy specimens did not correlate with the chemoradioselection and patient survival. However, in N-CRS patients, the CD44v9-positive group demonstrated significantly (P = 0.008) worse prognosis, than the CD44v9-negative group. Multivariate analyses demonstrated that among four candidate factors (T, N, response to CCRT, and CD44v9), CD44v9 positivity (HR: 3.145, 95% CI: 1.235–8.008, P = 0.0163) was significantly correlated with the poor prognosis, along with advanced N stage (HR: 3.525, 95% CI: 1.054–9.060, P = 0.0228). Furthermore, the survival rate of the CD44v9-induced group was significantly (P = 0.04) worse than the CD44v9-non-induced group. Conclusions CCRT-induced CD44v9-expressing CSCs appear to be a major hurdle to chemoradioselection. CD44v9-targeting seems to be a promising strategy to enhance the efficacy of chemoradioselection and consequent organ preservation and survival.
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Affiliation(s)
- Takeichiro Aso
- Department of Head and Neck Surgery, National Kyushu Cancer Center, 3-1-1, Notame, Minamiku, Fukuoka 811-1395, Japan
| | - Mioko Matsuo
- Department of Head and Neck Surgery, National Kyushu Cancer Center, 3-1-1, Notame, Minamiku, Fukuoka 811-1395, Japan
| | - Hideyuki Kiyohara
- Department of Head and Neck Surgery, National Kyushu Cancer Center, 3-1-1, Notame, Minamiku, Fukuoka 811-1395, Japan
| | - Kenichi Taguchi
- Department of Pathology, National Kyushu Cancer Center, 3-1-1, Notame, Minamiku, Fukuoka 811-1395, Japan
| | - Fumihide Rikimaru
- Department of Head and Neck Surgery, National Kyushu Cancer Center, 3-1-1, Notame, Minamiku, Fukuoka 811-1395, Japan
| | - Mototsugu Shimokawa
- Department of Cancer Information Research, National Kyushu Cancer Center, 3-1-1, Notame, Minamiku, Fukuoka 811-1395, Japan
| | - Yuichi Segawa
- Department of Otorhinolaryngology and Head and Neck Surgery, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashiku, Fukuoka 812-8582, Japan
| | - Yuichiro Higaki
- Department of Head and Neck Surgery, National Kyushu Cancer Center, 3-1-1, Notame, Minamiku, Fukuoka 811-1395, Japan
| | - Hirohito Umeno
- Department of Otorhinolaryngology and Head and Neck Surgery, School of Medicine, Kurume University, 67, Asahimachi, Fukuoka, 830-0011, Japan
| | - Tadashi Nakashima
- Department of Otorhinolaryngology and Head and Neck Surgery, School of Medicine, Kurume University, 67, Asahimachi, Fukuoka, 830-0011, Japan
| | - Muneyuki Masuda
- Department of Head and Neck Surgery, National Kyushu Cancer Center, 3-1-1, Notame, Minamiku, Fukuoka 811-1395, Japan
- * E-mail:
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Liu J, Cao W, Chen W, Xu L, Zhang C. Decreased expression of Kallmann syndrome 1 sequence gene (KAL1) contributes to oral squamous cell carcinoma progression and significantly correlates with poorly differentiated grade. J Oral Pathol Med 2015; 44:109-14. [PMID: 25060050 DOI: 10.1111/jop.12206] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/21/2014] [Indexed: 02/05/2023]
Abstract
BACKGROUND Kallmann syndrome 1 sequence gene (KAL1) protein is an extracellular matrix associated protein which plays vital roles in neurons development and cell migration. However, its biological functions and clinical implications have yet not been revealed in oral carcinogenesis. The objective of the study was to evaluate the role of KAL1 in oral cancer and determine clinical significance of KAL1 in oral squamous cell carcinomas (OSCCs). METHODS The expression pattern of KAL1 was examined in a testing cohort including OSCCs (n = 42) and paired adjacent tissues (PATs) (n = 14) by real-time PCR. The result was further validated in a validating cohort of OSCCs (n = 32). Correlation between clinicopathological parameters and KAL1 mRNA levels was analyzed by Kruskal-Wallis test. In vitro, the effects of KAL1 ablation through siRNA-mediated knockdown on the proliferation of OSCC cells were determined by CCK-8, BrdU, and colonies formation assays, respectively. In addition, cell cycle distribution was further evaluated by cytometry. RESULTS We observed that remarkably decreased expression of KAL1 mRNA in two independent cohorts (P = 0.0002 and P = 0.033, respectively). Furthermore, downregulated KAL1 mRNA was significantly associated with worse pathological grade (P = 0.013 and P = 0.035, respectively). Upon KAL1 silencing, the proliferation and colonies formation potentials of OSCC cells were notably promoted by accelerating G1 to M phase transition. CONCLUSION These data indicated that KAL1 plays a potential suppressive role on OSCC initiation and progression, and KAL1 gene may serve as an adjuvant biomarker for the identification of pathological grade.
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Affiliation(s)
- Jiannan Liu
- Department of Oral Maxillofacial-Head and Neck Oncology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Hsin CH, Chen MK, Tang CH, Lin HP, Chou MY, Lin CW, Yang SF. High level of plasma matrix metalloproteinase-11 is associated with clinicopathological characteristics in patients with oral squamous cell carcinoma. PLoS One 2014; 9:e113129. [PMID: 25423087 PMCID: PMC4244114 DOI: 10.1371/journal.pone.0113129] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2014] [Accepted: 10/20/2014] [Indexed: 12/01/2022] Open
Abstract
Background Matrix metalloproteinase-11 (MMP-11) is reported to be overexpressed in several cancers and may contribute to tumorigenesis. The current study investigated the association between the clinicopathological characteristics and plasma level of MMP-11 in oral squamous cell carcinoma (OSCC) patients. Methodology and Principal Findings The plasma MMP-11 concentration was determined by ELISA on 330 male OSCC patients. In addition, the metastatic effects of the MMP-11 knockdown on the oral cancer cells were investigated by cell migration assay. Our results showed that the plasma MMP-11 levels were significantly higher in patients with advanced T status (p = 0.001), lymph node metastasis (p = 0.006) and higher TNM stages (p<0.001). Moreover, treatment with the MMP-11 shRNA exerted an inhibitory effect on migration in SCC9 oral cancer cells. Conclusion Our study showed that plasma level of MMP-11 may be useful for assessment of the disease progression, especially lymph node metastasis, in patients with OSCC.
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Affiliation(s)
- Chung-Han Hsin
- School of Medicine, Chung Shan Medical University, Taichung, Taiwan
- Department of Otolaryngology, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Mu-Kuan Chen
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
- Department of Otorhinolaryngology-Head and Neck Surgery, Changhua Christian Hospital, Changhua, Taiwan
| | - Chih-Hsin Tang
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan
- Department of Biotechnology, College of Health Science, Asia University, Taichung, Taiwan
| | - Huang-Pin Lin
- School of Medicine, Chung Shan Medical University, Taichung, Taiwan
- Department of Otolaryngology, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Ming-Yung Chou
- Institute of Oral Sciences, Chung Shan Medical University, Taichung, Taiwan
- Department of Dentistry, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Chiao-Wen Lin
- Institute of Oral Sciences, Chung Shan Medical University, Taichung, Taiwan
- Department of Dentistry, Chung Shan Medical University Hospital, Taichung, Taiwan
- * E-mail: (CWL); (SFY)
| | - Shun-Fa Yang
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
- Department of Medical Research, Chung Shan Medical University Hospital, Taichung, Taiwan
- * E-mail: (CWL); (SFY)
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191
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Petera J, Sirák I, Laco J, Kašaová L, Tuček L, Doležalová H. High-dose-rate brachytherapy in early oral cancer with close or positive margins. Brachytherapy 2014; 14:77-83. [PMID: 25264037 DOI: 10.1016/j.brachy.2014.08.050] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2014] [Revised: 08/08/2014] [Accepted: 08/22/2014] [Indexed: 01/23/2023]
Abstract
PURPOSE Retrospective evaluation of high-dose-rate brachytherapy (HDR BT) in early oral cancer and factors influencing tumor control. METHODS AND MATERIALS A total of 30 patients with T1-T3N0 tongue and floor of mouth cancer were treated with tumor excision±elective neck dissection and HDR BT 18×3 Gy b.i.d. The Kaplan-Meier model was used for survival analyses, and the log-rank test and Cox regression analyses were used to evaluate the influence of T-stage, histologic grade, resection margin, depth of invasion, and vascular endothelial growth factor (VEGF) intensity on local control (LC), nodal control (NC), disease-free survival (DFS), and overall survival (OS). Median followup was 40 months (6-145). RESULTS Actuarial 3-year LC, NC, DFS, DFS after salvage treatment, and OS were 85.4%, 69.2%, 65.4%, 75.6%, and 73.0%, respectively. The log-rank test and univariate Cox regression analysis revealed the following correlations, namely tumor grade correlated with LC, DFS, and OS; T-stage with NC and DFS; depth of invasion and VEGF intensity with NC, DFS, and OS. Associations detected on the multivariate analysis were as follows: tumor grade with LC, depth of invasion with NC, depth of invasion and tumor grade with DFS, and VEGF intensity with DFS after salvage treatment. Only one case of osteoradionecrosis and two cases of soft tissue necrosis occurred. CONSLUSION The HDR BT 18×3 Gy b.i.d. is a safe treatment of early oral cancer with a good LC. The T-stage, tumor grade, depth of invasion, and intensity of VEGF were significant predictors of locoregional control.
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Affiliation(s)
- Jiří Petera
- Department of Oncology and Radiotherapy, University Hospital Hradec Králové, Hradec Králové, Czech Republic.
| | - Igor Sirák
- Department of Oncology and Radiotherapy, University Hospital Hradec Králové, Hradec Králové, Czech Republic
| | - Jan Laco
- The Fingerland Department of Pathology, Charles University in Prague, Faculty of Medicine and University Hospital Hradec Králové, Hradec Králové, Czech Republic
| | - Linda Kašaová
- Department of Oncology and Radiotherapy, University Hospital Hradec Králové, Hradec Králové, Czech Republic
| | - Luboš Tuček
- Department of Stomatosurgery, University Hospital Hradec Králové, Hradec Králové, Czech Republic
| | - Helena Doležalová
- Department of Stomatosurgery, University Hospital Hradec Králové, Hradec Králové, Czech Republic
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192
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Xiao C, Wang L, Zhu L, Zhang C, Zhou J. Secreted frizzled‑related protein 2 is epigenetically silenced and functions as a tumor suppressor in oral squamous cell carcinoma. Mol Med Rep 2014; 10:2293-8. [PMID: 25189527 PMCID: PMC4214353 DOI: 10.3892/mmr.2014.2542] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2014] [Accepted: 07/31/2014] [Indexed: 12/14/2022] Open
Abstract
The role of epigenetic inactivation of secreted frizzled-related protein 2 (SFRP2) and its functions in the development of oral squamous cell carcinoma (OSCC) remain to be elucidated. The present study demonstrated that SFRP2 mRNA was detected in 97.96% of tumor-adjacent normal tissues, while its expression was only detected in 16.33% of the tumor samples. In addition, the loss of SFRP2 expression was associated with hypermethylation of its promoter. As expected, the overexpression of SFRP2 in OSCC cell lines (Tca8113) suppressed cell proliferation and arrested the cell cycle in the G1 phase. Overexpression of SFRP2 also effectively repressed tumor growth in xenograft animals. Mechanistic investigations revealed that SFRP2 inhibited the development of OSCC in vitro and in vivo through an increase in the expression levels of glycogen synthase kinase-3β and a decrease in the expression level of cyclin D1, a direct read-out gene of active Wnt signaling. In addition, an increase in the expression of β-catenin was observed in the Tca8113/SFRP2 cells and in the animal models overexpressing SFRP2. Therefore, the results of the present study provide insight into the role of SFRP2 as a functional tumor suppressor in the development of OSCC through inhibition of the Wnt signaling pathway. Further studies on the precise mechanisms underlying the inhibition of Wnt signaling by SFRP2 and its association with β-catenin are required.
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Affiliation(s)
- Can Xiao
- Department of Occupational Medicine and Environmental Health, School of Public Health, Soochow University, Suzhou, Jiangsu 215123, P.R. China
| | - Lili Wang
- Department of Stomatology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China
| | - Lifang Zhu
- Department of Stomatology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China
| | - Chenping Zhang
- Department of Stomatology, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200011, P.R. China
| | - Jianhua Zhou
- Department of Occupational Medicine and Environmental Health, School of Public Health, Soochow University, Suzhou, Jiangsu 215123, P.R. China
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193
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Goldenberg D, Mackley H, Koch W, Bann DV, Schaefer EW, Hollenbeak CS. Age and stage as determinants of treatment for oral cavity and oropharyngeal cancers in the elderly. Oral Oncol 2014; 50:976-82. [PMID: 25153476 DOI: 10.1016/j.oraloncology.2014.07.008] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2014] [Revised: 07/08/2014] [Accepted: 07/20/2014] [Indexed: 11/18/2022]
Abstract
BACKGROUND We investigate treatment selection for oral cavity and oropharyngeal (OC&OP) cancers to understand factors that influence treatment selection. METHODS We studied 7023 patients, ⩾66 years, diagnosed with a first primary OC&OP cancer using SEER-Medicare data. Multinomial logistic regression was to model treatment selection, controlling for other factors. RESULTS Most patients with OC cancer were treated with surgery alone (56.5%); most patients with OP cancer were treated with chemotherapy and radiation (28.9%). Age, stage and site were the most important predictors of treatment selection. As age increased from 70 to 81 (the interquartile range), treatment shifted toward surgery alone (OR=1.26; CI: 1.08-1.46) and no treatment (OR=1.5, 95% CI: 1.25-1.80), and away from combined surgery, radiation and treatments involving chemotherapy. CONCLUSIONS Age, stage, and site are the most important determinants of treatment selection for patients with OC&OP cancers. Increasing age and stage drive treatment toward non-surgical options and no treatment at all.
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Affiliation(s)
- David Goldenberg
- Department of Surgery, The Pennsylvania State University, College of Medicine, Hershey, PA, United States.
| | - Heath Mackley
- Department of Radiology, The Pennsylvania State University, College of Medicine, Hershey, PA, United States
| | - Wayne Koch
- Department of Otolaryngology-Head & Neck Surgery, Johns Hopkins University, Baltimore, MD, United States
| | - Darrin V Bann
- Department of Surgery, The Pennsylvania State University, College of Medicine, Hershey, PA, United States
| | - Eric W Schaefer
- Department of Public Health Sciences, The Pennsylvania State University, College of Medicine, Hershey, PA, United States
| | - Christopher S Hollenbeak
- Department of Surgery, The Pennsylvania State University, College of Medicine, Hershey, PA, United States; Department of Public Health Sciences, The Pennsylvania State University, College of Medicine, Hershey, PA, United States
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194
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Patil VM, Prabhash K, Noronha V, Joshi A, Muddu V, Dhumal S, Arya S, Juvekar S, Chaturvedi P, Chaukar D, Pai P, Kane S, Patil A, Agarwal JP, Ghosh-Lashkar S, Dcruz A. Neoadjuvant chemotherapy followed by surgery in very locally advanced technically unresectable oral cavity cancers. Oral Oncol 2014; 50:1000-4. [PMID: 25130412 DOI: 10.1016/j.oraloncology.2014.07.015] [Citation(s) in RCA: 85] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2014] [Revised: 07/23/2014] [Accepted: 07/24/2014] [Indexed: 01/16/2023]
Abstract
BACKGROUND The median survival of technically unresectable oral-cavity cancers (T4a and T4b) with non surgical therapy is 2-12 months. We hypothesized that neoadjuvant chemotherapy (NACT) could reduce the tumour size and result in successful resection and ultimately improved outcomes. We present a retrospective analysis of consecutive patients who received NACT at our centre between January 2008 and August 2012. PATIENTS AND METHODS All patients with technically unresectable oral cancers were assessed in a multidisciplinary clinic and received 2 cycles of NACT. After 2 cycles, patients were reassessed and planned for either surgery with subsequent CTRT or nonsurgical therapy including CT-RT, RT or palliation. SPSS version 16 was used for analysis of locoregional control and overall survival (OS). Univariate and multivariate analysis was done for factors affecting the OS. RESULTS 721 patients with stage IV oral-cavity cancer received NACT. 310 patients (43%) had sufficient reduction in tumour size and underwent surgical resection. Of the remaining patients, 167 received chemoradiation, 3 radical radiation and 241 palliative treatment alone The locoregional control rate at 24 months was 20.6% for the overall cohort, 32% in patients undergoing surgery and 15% in patients undergoing non surgical treatment (p=0.0001). The median estimated OS in patients undergoing surgery was 19.6 months (95% CI, 9.59-25.21 months) and 8.16 months (95%, CI 7.57-8.76) in patients treated with non surgical treatment (p=0.0001). CONCLUSION In our analysis, NACT led to successful resection and improved overall survival in a significant proportion of technically unresectable oral-cancer patients.
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Affiliation(s)
- V M Patil
- Department of Medical Oncology, Tata Memorial Hospital, Mumbai 400012, India
| | - K Prabhash
- Department of Medical Oncology, Tata Memorial Hospital, Mumbai 400012, India.
| | - V Noronha
- Department of Medical Oncology, Tata Memorial Hospital, Mumbai 400012, India
| | - A Joshi
- Department of Medical Oncology, Tata Memorial Hospital, Mumbai 400012, India
| | - V Muddu
- Department of Medical Oncology, Tata Memorial Hospital, Mumbai 400012, India
| | - S Dhumal
- Department of Medical Oncology, Tata Memorial Hospital, Mumbai 400012, India
| | - S Arya
- Department of Radio Diagnosis, Tata Memorial Hospital, Mumbai, India
| | - S Juvekar
- Department of Radio Diagnosis, Tata Memorial Hospital, Mumbai, India
| | - P Chaturvedi
- Department of Head and Neck Surgery, Tata Memorial Hospital, Mumbai, India
| | - D Chaukar
- Department of Head and Neck Surgery, Tata Memorial Hospital, Mumbai, India
| | - P Pai
- Department of Head and Neck Surgery, Tata Memorial Hospital, Mumbai, India
| | - S Kane
- Department of Pathology, Tata Memorial Hospital, Mumbai, India
| | - A Patil
- Department of Pathology, Tata Memorial Hospital, Mumbai, India
| | - J P Agarwal
- Department of Radiation Oncology, Tata Memorial Hospital, Mumbai, India
| | - S Ghosh-Lashkar
- Department of Radiation Oncology, Tata Memorial Hospital, Mumbai, India
| | - A Dcruz
- Department of Head and Neck Surgery, Tata Memorial Hospital, Mumbai, India
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195
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Gao Q, Zhang L, Zhang B, Wang QY, Sun CF, Dong XT, Ying J. Phosphatase and tensin homolog overexpression decreases proliferation and invasion and increases apoptosis in oral squamous cell carcinoma cells. Oncol Lett 2014; 8:1058-1064. [PMID: 25120657 PMCID: PMC4114615 DOI: 10.3892/ol.2014.2283] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2013] [Accepted: 05/13/2014] [Indexed: 12/29/2022] Open
Abstract
Phosphatase and tensin homolog (PTEN) is a potent tumor suppressor which regulates various cellular functions. The aim of the present study was to analyze the function of PTEN gene expression in squamous cell carcinoma (SCC) cells. This gene exhibits a unique function in cell migration and proliferation during the early stages of embryonic development. However, its role as a tumor suppressor gene in tongue squamous carcinoma cells remains unclear. In the present study, an SCC-4 cell line stably expressing PTEN was established and the effects of PTEN gene expression on SCC-4 cell proliferation, invasion and apoptosis were investigated. PTEN expression was found to induce apoptosis in SCC-4 cells, possibly via negative regulation of the phosphatidylinositide 3-kinase/Akt signaling pathway and increased expression of Bcl-2-interacting mediator of cell death. In addition, PTEN was found to control the epithelial-mesenchymal transition in SCC cells, thereby reducing their invasive ability. Furthermore, Transwell assay revealed that the expression of E-cadherin was increased, while the expression of vimentin and SNAIL was decreased. This study has provided an important insight into the mechanisms by which PTEN mediates the progression and early metastasis of tongue carcinoma.
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Affiliation(s)
- Qi Gao
- Department of Biochemistry, Liaoning Medical University, Jinzhou, Liaoning 121001, P.R. China
| | - Lei Zhang
- Department of Biochemistry, Liaoning Medical University, Jinzhou, Liaoning 121001, P.R. China
| | - Bin Zhang
- Department of Stomatology, The First Affiliated Hospital of Liaoning Medical University, Jinzhou, Liaoning 121001, P.R. China
| | - Qi-Yu Wang
- Department of Stomatology, The First Affiliated Hospital of Liaoning Medical University, Jinzhou, Liaoning 121001, P.R. China
| | - Chang-Fu Sun
- Department of Oral and Maxillofacial-Head and Neck Surgery, School of Stomatology, China Medical University, Shenyang, Liaoning 110002, P.R. China
| | - Xiao-Ting Dong
- Department of Biochemistry, Liaoning Medical University, Jinzhou, Liaoning 121001, P.R. China
| | - Jang Ying
- Department of Stomatology, The First Affiliated Hospital of Liaoning Medical University, Jinzhou, Liaoning 121001, P.R. China
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Lu W, Feng F, Xu J, Lu X, Wang S, Wang L, Lu H, Wei M, Yang G, Wang L, Lu Z, Liu Y, Lei X. QKI impairs self-renewal and tumorigenicity of oral cancer cells via repression of SOX2. Cancer Biol Ther 2014; 15:1174-84. [PMID: 24918581 DOI: 10.4161/cbt.29502] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
Cancer stem cells (CSCs) may contribute to tumor initiation, distant metastasis and chemo-resistance. One of RNA-binding proteins, Quaking (QKI), was reported to be a tumor suppressor. Here we showed that reduced QKI levels were observed in many human oral cancer samples. Moreover further reduction of QKI expression in CSCs was detected compared with non-CSCs in oral cancer cell lines. Overexpressing QKI in oral cancer cells significantly reduced CSC sphere formation and stem cell-associated genes. In tumor implanting nude mice model, QKI significantly impeded tumor initiation rates, tumor sizes and lung metastasis rates. As a contrast, knocking down QKI enhanced the above effects. Among the putative CSC target genes, SOX2 expression was negatively affected by QKI, mechanism study revealed that QKI may directly regulate SOX2 expression via specific binding with its 3'UTR in a cis element-dependent way. Loss of SOX2 even completely reversed the sphere forming ability in QKI knockdown cell line. Taken together, these data demonstrated that SOX2 is an important CSC regulator in oral cancer. QKI is a novel CSC inhibitor and impaired multiple oral CSC properties via partial repression of SOX2. Therefore, reduced expression of QKI may provide a novel diagnostic marker for oral cancer.
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Affiliation(s)
- Wei Lu
- Department of Oral and Maxillofacial Surgery; School of Stomatology; the Fourth Military Medical University; Xi'an, PR China; Department of Stomatology; 101 Hospital of PLA; Wuxi, PR China
| | - Feixue Feng
- The State Key Laboratory of Cancer Biology; Department of Pharmacogenomics; the Fourth Military Medical University; Xi'an, PR China
| | - Jinke Xu
- Department of Oral and Maxillofacial Surgery; School of Stomatology; the Fourth Military Medical University; Xi'an, PR China
| | - Xiaozhao Lu
- The State Key Laboratory of Cancer Biology; Department of Pharmacogenomics; the Fourth Military Medical University; Xi'an, PR China
| | - Shan Wang
- The State Key Laboratory of Cancer Biology; Department of Pharmacogenomics; the Fourth Military Medical University; Xi'an, PR China
| | - Lifeng Wang
- The State Key Laboratory of Cancer Biology; Department of Biochemistry and Molecular Biology; the Fourth Military Medical University; Xi'an, PR China
| | - Huanyu Lu
- The State Key Laboratory of Cancer Biology; Department of Pharmacogenomics; the Fourth Military Medical University; Xi'an, PR China
| | - Mengying Wei
- The State Key Laboratory of Cancer Biology; Department of Biochemistry and Molecular Biology; the Fourth Military Medical University; Xi'an, PR China
| | - Guodong Yang
- The State Key Laboratory of Cancer Biology; Department of Biochemistry and Molecular Biology; the Fourth Military Medical University; Xi'an, PR China
| | - Li Wang
- The State Key Laboratory of Cancer Biology; Department of Pharmacogenomics; the Fourth Military Medical University; Xi'an, PR China
| | - Zifan Lu
- The State Key Laboratory of Cancer Biology; Department of Pharmacogenomics; the Fourth Military Medical University; Xi'an, PR China
| | - Yanpu Liu
- Department of Oral and Maxillofacial Surgery; School of Stomatology; the Fourth Military Medical University; Xi'an, PR China
| | - Xiaoying Lei
- The State Key Laboratory of Cancer Biology; Department of Pharmacogenomics; the Fourth Military Medical University; Xi'an, PR China
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197
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Yasser M, Shaikh R, Chilakapati MK, Teni T. Raman spectroscopic study of radioresistant oral cancer sublines established by fractionated ionizing radiation. PLoS One 2014; 9:e97777. [PMID: 24841281 PMCID: PMC4026477 DOI: 10.1371/journal.pone.0097777] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2014] [Accepted: 04/23/2014] [Indexed: 01/24/2023] Open
Abstract
Radiotherapy is an important treatment modality for oral cancer. However, development of radioresistance is a major hurdle in the efficacy of radiotherapy in oral cancer patients. Identifying predictors of radioresistance is a challenging task and has met with little success. The aim of the present study was to explore the differential spectral profiles of the established radioresistant sublines and parental oral cancer cell lines by Raman spectroscopy. We have established radioresistant sublines namely, 50Gy-UPCI:SCC029B and 70Gy-UPCI:SCC029B from its parental UPCI:SCC029B cell line, by using clinically admissible 2Gy fractionated ionizing radiation (FIR). The developed radioresistant character was validated by clonogenic cell survival assay and known radioresistance-related protein markers like Mcl-1, Bcl-2, Cox-2 and Survivin. Altered cellular morphology with significant increase (p<0.001) in the number of filopodia in radioresistant cells with respect to parental cells was observed. The Raman spectra of parental UPCI:SCC029B, 50Gy-UPCI:SCC029B and 70Gy-UPCI:SCC029B cells were acquired and spectral features indicate possible differences in biomolecules like proteins, lipids and nucleic acids. Principal component analysis (PCA) provided three clusters corresponding to radioresistant 50Gy, 70Gy-UPCI:SCC029B sublines and parental UPCI:SCC029B cell line with minor overlap, which suggest altered molecular profile acquired by the radioresistant cells due to multiple doses of irradiation. The findings of this study support the potential of Raman spectroscopy in prediction of radioresistance and possibly contribute to better prognosis of oral cancer.
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Affiliation(s)
- Mohd Yasser
- KS-121, Teni Laboratory, ACTREC, Tata Memorial Centre, Kharghar-Node, Navi Mumbai, India
| | - Rubina Shaikh
- KS-04, Chilakapati Laboratory, ACTREC, Tata Memorial Centre, Kharghar-Node, Navi Mumbai, India
| | - Murali Krishna Chilakapati
- KS-04, Chilakapati Laboratory, ACTREC, Tata Memorial Centre, Kharghar-Node, Navi Mumbai, India
- * E-mail: (MKC); (TT)
| | - Tanuja Teni
- KS-121, Teni Laboratory, ACTREC, Tata Memorial Centre, Kharghar-Node, Navi Mumbai, India
- * E-mail: (MKC); (TT)
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198
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Epstein JB, Güneri P, Barasch A. Appropriate and necessary oral care for people with cancer: guidance to obtain the right oral and dental care at the right time. Support Care Cancer 2014; 22:1981-8. [PMID: 24676676 DOI: 10.1007/s00520-014-2228-x] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2013] [Accepted: 03/21/2014] [Indexed: 02/07/2023]
Abstract
PURPOSE The identification of experienced and knowledgeable dental specialists to provide appropriate oral care for cancer patients, as well as the integration of this care within general oncology management, may be a challenge. This paper discusses the general and additional requirements for dental care providers to support the cancer patient and provide prevention and/or treatment for oral complications of cancer therapy. METHODS We performed a literature review of specific issues regarding the oral cavity and adjacent structures in the cancer patient, including detection and early diagnosis of oral malignancy. We incorporated the systemic effects of cancer and its therapy that affect oral disease and treatment. We present a summary of how to seek expert dental care for cancer patients and for referral from the dental and medical community. RESULTS Due to the complexity conferred by the disease and its treatment, cancer patients require educated, experienced dentists for treatment and/or prevention of oral-related morbidity. Correct diagnosis and evidence-based prophylactic and therapeutic oral care can significantly improve patient quality of life and reduce morbidity and healthcare costs. CONCLUSIONS The knowledge and expertise of dental professionals regarding prevention/treatment of complications and secondary malignant lesions in cancer patients are critical. Integration of oral care with the oncology care and in survivors requires effective communication between dental and medical providers beginning ideally at diagnosis. These clinicians may be identified at the cancer center, nearby hospital dental programs, and, less commonly, in the community.
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Affiliation(s)
- Joel B Epstein
- Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA
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199
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Simabuco FM, Kawahara R, Yokoo S, Granato DC, Miguel L, Agostini M, Aragão AZB, Domingues RR, Flores IL, Macedo CCS, Della Coletta R, Graner E, Paes Leme AF. ADAM17 mediates OSCC development in an orthotopic murine model. Mol Cancer 2014; 13:24. [PMID: 24495306 PMCID: PMC3928084 DOI: 10.1186/1476-4598-13-24] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2013] [Accepted: 02/03/2014] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND ADAM17 is one of the main sheddases of the cells and it is responsible for the cleavage and the release of ectodomains of important signaling molecules, such as EGFR ligands. Despite the known crosstalk between ADAM17 and EGFR, which has been considered a promising targeted therapy in oral squamous cell carcinoma (OSCC), the role of ADAM17 in OSCC development is not clear. METHOD In this study the effect of overexpressing ADAM17 in cell migration, viability, adhesion and proliferation was comprehensively appraised in vitro. In addition, the tumor size, tumor proliferative activity, tumor collagenase activity and MS-based proteomics of tumor tissues have been evaluated by injecting tumorigenic squamous carcinoma cells (SCC-9) overexpressing ADAM17 in immunodeficient mice. RESULTS The proteomic analysis has effectively identified a total of 2,194 proteins in control and tumor tissues. Among these, 110 proteins have been down-regulated and 90 have been up-regulated in tumor tissues. Biological network analysis has uncovered that overexpression of ADAM17 regulates Erk pathway in OSCC and further indicates proteins regulated by the overexpression of ADAM17 in the respective pathway. These results are also supported by the evidences of higher viability, migration, adhesion and proliferation in SCC-9 or A431 cells in vitro along with the increase of tumor size and proliferative activity and higher tissue collagenase activity as an outcome of ADAM17 overexpression. CONCLUSION These findings contribute to understand the role of ADAM17 in oral cancer development and as a potential therapeutic target in oral cancer. In addition, our study also provides the basis for the development of novel and refined OSCC-targeting approaches.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | - Adriana Franco Paes Leme
- Laboratório de Espectrometria de Massas, Laboratório Nacional de Biociências, LNBio, CNPEM, Campinas 13083-970, Brazil.
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200
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Randomized, controlled phase II study of post-surgery radiotherapy combined with recombinant adenoviral human p53 gene therapy in treatment of oral cancer. Cancer Gene Ther 2013; 20:375-8. [DOI: 10.1038/cgt.2013.30] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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