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Zhang G, Duan G, Yang Z, Deng X, Han L, Zhu M, Jia X, Li L. Fractionated irradiation promotes radioresistance and decreases oxidative stress by increasing Nrf2 of ALDH-positive nasopharyngeal cancer stem cells. Ann Med Surg (Lond) 2024; 86:5793-5801. [PMID: 39359823 PMCID: PMC11444553 DOI: 10.1097/ms9.0000000000002559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2024] [Accepted: 08/29/2024] [Indexed: 10/04/2024] Open
Abstract
Radiotherapy is widely regarded as the primary therapeutic modality for nasopharyngeal cancer (NPC). Studies have shown that cancer cells with high resistance to radiation, known as radioresistant cancer cells, may cause residual illness, which in turn might contribute to the occurrence of cancer recurrence and metastasis. It has been shown that cancer stem-like cells (CSCs) exhibit resistance to radiation therapy. In the present study, fractionated doses of radiation-induced epithelial-mesenchymal transition (EMT) and ALDH+ CSCs phenotype of NPC tumor spheroids. Furthermore, it has been shown that cells with elevated ALDH activity have increased resistance to the effects of fractionated irradiation. Nuclear factor erythroid-2-related factor 2 (Nrf2) plays a pivotal role in regulating cellular antioxidant systems. A large body of evidence suggests that Nrf2 plays a significant role in the development of radioresistance in cancer. The authors' research revealed that the application of fractionated irradiation resulted in a decline in Nrf2-dependent reactive oxygen species (ROS) levels, thereby mitigating DNA damage in ALDH+ stem-like NPC cells. In addition, immunofluorescence analysis revealed that subsequent to the process of fractionated irradiation of ALDH+ cells, activated Nrf2 was predominantly localized inside the nucleus. Immunofluorescent analysis also revealed that the presence of the nuclear Nrf2+/NQO1+/ALDH1+ axis might potentially serve as an indicator of poor prognosis and resistance to radiotherapy in patients with NPC. Thus, the authors' findings strongly suggest that the radioresistance of ALDH-positive NPC CSCs to fractionated irradiation is regulated by nuclear Nrf2 accumulation. Nrf2 exerts its effects through the downstream effector NQO1/ALDH1, which depends on ROS attenuation.
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Affiliation(s)
- Gong Zhang
- Department of Radiotherapy of the Fifth Clinical Medical College of Shanxi Medical University, People’s Hospital of Shanxi Province, Taiyuan, Shanxi
| | - Guosheng Duan
- Department of Radiotherapy of the Fifth Clinical Medical College of Shanxi Medical University, People’s Hospital of Shanxi Province, Taiyuan, Shanxi
| | - Zhengyan Yang
- Department of Radiotherapy of the Fifth Clinical Medical College of Shanxi Medical University, People’s Hospital of Shanxi Province, Taiyuan, Shanxi
| | - Xubin Deng
- Department of Oncology of the Affiliated Cancer Hospital and Institute of Guangzhou Medical University, Guangzhou, Guangdong, People’s Republic of China
| | - Luwei Han
- Department of Radiotherapy of the Fifth Clinical Medical College of Shanxi Medical University, People’s Hospital of Shanxi Province, Taiyuan, Shanxi
| | - Meiling Zhu
- Department of Radiotherapy of the Fifth Clinical Medical College of Shanxi Medical University, People’s Hospital of Shanxi Province, Taiyuan, Shanxi
| | - Xiaorong Jia
- Department of Radiotherapy of the Fifth Clinical Medical College of Shanxi Medical University, People’s Hospital of Shanxi Province, Taiyuan, Shanxi
| | - Lei Li
- Department of Radiotherapy of the Fifth Clinical Medical College of Shanxi Medical University, People’s Hospital of Shanxi Province, Taiyuan, Shanxi
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Yang ZC, Nie ZQ, Chen QY, Du CC, Luo DH, Liu LT, Guo SS, Li JB, Sun R, Liu SL, Lu ZJ, Yuan L, Lu ZX, Mai HQ, Tang LQ. Cost-Effectiveness analysis of combining plasma Epstein-Barr virus DNA testing and different surveillance imaging modalities for nasopharyngeal carcinoma patients in first remission. Oral Oncol 2022; 128:105851. [DOI: 10.1016/j.oraloncology.2022.105851] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 03/27/2022] [Accepted: 04/01/2022] [Indexed: 01/07/2023]
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Yang FL, Wei YX, Liao BY, Wei GJ, Qin HM, Pang XX, Wang JL. LncRNA HOTAIR regulates the expression of E-cadherin to affect nasopharyngeal carcinoma progression by recruiting histone methylase EZH2 to mediate H3K27 trimethylation. Genomics 2021; 113:2276-2289. [PMID: 33965547 DOI: 10.1016/j.ygeno.2021.03.036] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 02/24/2021] [Accepted: 03/05/2021] [Indexed: 02/04/2023]
Abstract
BACKGROUND/AIM There has been increasing evidence for the function of long non-coding RNA (lncRNA) in nasopharyngeal carcinoma (NPC). We aim to delve into the position of lncRNA HOX antisense intergenic RNA (HOTAIR), together with enhancer of zeste homolog 2 (EZH2), E-cadherin and trimethylation of lysine 27 on histone H3 (H3K27me3) in NPC. METHODS HOTAIR, EZH2, and E-cadherin expression in NPC tissues and cells were tested. NPC cell biological functions were examined through gain-of and loss-of function assays. The mechanism of lncRNA HOTAIR/E-cadherin/EZH2/H3K27 axis in NPC was decoded. RESULTS LncRNA HOTAIR and EZH2 were highly expressed in NPC, and E-cadherin was lowly expressed. Down-regulation of HOTAIR or EZH2 inhibited NPC cell progression and tumor growth. HOTAIR recruited histone methylase EZH2 to mediate trimethylation of H3K27 and regulated E-cadherin expression. CONCLUSION HOTAIR inhibits E-cadherin by stimulating the trimethylation of H3K27 to promote NPC cell progression through recruiting histone methylase EZH2.
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Affiliation(s)
- Feng-Lian Yang
- Youjiang Medical University for Nationalities, Baise 533000, Guangxi, China
| | - Yu-Xia Wei
- Center of Reproductive and Genetic Medicine, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise 533000, Guangxi, China
| | - Bi-Yun Liao
- Center of Reproductive and Genetic Medicine, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise 533000, Guangxi, China
| | - Gui-Jiang Wei
- Center of Reproductive and Genetic Medicine, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise 533000, Guangxi, China
| | - Hai-Mei Qin
- Center of Reproductive and Genetic Medicine, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise 533000, Guangxi, China
| | - Xiao-Xia Pang
- Center of Reproductive and Genetic Medicine, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise 533000, Guangxi, China
| | - Jun-Li Wang
- Center of Reproductive and Genetic Medicine, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise 533000, Guangxi, China.
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Korbi AE, Tkhayat SB, Bouatay R, Ferjaoui M, Kolsi N, Harrathi K, Koubaa J. [Therapeutic outcomes of nasopharyngeal carcinomas: a single-center study conducted at the Fattouma Bourguiba University Hospital in Monastir, Tunisia]. Pan Afr Med J 2021; 38:143. [PMID: 33912313 PMCID: PMC8052626 DOI: 10.11604/pamj.2021.38.143.15510] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Accepted: 01/19/2021] [Indexed: 11/24/2022] Open
Abstract
INTRODUCTION nasopharyngeal carcinomas (NPCs) are relatively common in the Mediterranean basin. Survival has been greatly improved by new radiation techniques and new molecular-targeted chemotherapy. The purpose of our study was to analyze the therapeutic outcomes and to describe the prognostic factors of NPCs. METHODS we conducted a retrospective study of patients with nasopharyngeal carcinoma on treatment and follow-up in our department between January 1995 and December 2014. Data were collected using a standardized sheet. Statistical analysis was performed using SPSS software. Kaplan-Meier method was used to determine patient´s overall survival. RESULTS seventy-three cases of NPC were reported. The average age of patients was 48 years. A male predominance was noted. The majority of cancers (56%) were locally advanced tumors (T3-T4). After an average follow-up of 45.5 months, the rate of locoregional recurrences was 19.4%. Three patients (4%) had bone metastases. Five-year overall survival was 65%. Factors positively influencing overall survival were early-stage tumor (TNM classification) and 1.8 Gy single fraction radiotherapy. Local and lymph node recurrence rates were 13.8% and 5.5% respectively, mainly for T4 N2 tumors. Therapeutic sequelae were dominated by seromucous otitis (42.7%), trismus (38.7%), and xerostomia (32%). CONCLUSION overall survival in patients with NPC has improved, in particular with the advent of concomitant radiotherapy and chemotherapy; however, disabling late toxicity is significant. Good prognostic factors reported in this study include early tumor stage as well as radiotherapy fractionation.
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Affiliation(s)
- Amel El Korbi
- Service d´Otorhinolaryngologie et de Chirurgie Cervico-Faciale, Centre Hospitalier Universitaire Fattouma Bourguiba, Monastir, Tunisie
- Unité de Recherche, Qualité et Sécurité des Soins (UR12SP41), Université de Monastir, Monastir, Tunisie
| | - Sarra Ben Tkhayat
- Service d´Otorhinolaryngologie et de Chirurgie Cervico-Faciale, Centre Hospitalier Universitaire Fattouma Bourguiba, Monastir, Tunisie
| | - Rachida Bouatay
- Service d´Otorhinolaryngologie et de Chirurgie Cervico-Faciale, Centre Hospitalier Universitaire Fattouma Bourguiba, Monastir, Tunisie
| | - Mehdi Ferjaoui
- Service d´Otorhinolaryngologie et de Chirurgie Cervico-Faciale, Centre Hospitalier Universitaire Fattouma Bourguiba, Monastir, Tunisie
| | - Naourez Kolsi
- Service d´Otorhinolaryngologie et de Chirurgie Cervico-Faciale, Centre Hospitalier Universitaire Fattouma Bourguiba, Monastir, Tunisie
| | - Khaled Harrathi
- Service d´Otorhinolaryngologie et de Chirurgie Cervico-Faciale, Centre Hospitalier Universitaire Fattouma Bourguiba, Monastir, Tunisie
| | - Jamel Koubaa
- Service d´Otorhinolaryngologie et de Chirurgie Cervico-Faciale, Centre Hospitalier Universitaire Fattouma Bourguiba, Monastir, Tunisie
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Li Q, Wang M, Zhang Y, Wang L, Yu W, Bao X, Zhang B, Xiang Y, Deng A. BIX-01294-enhanced chemosensitivity in nasopharyngeal carcinoma depends on autophagy-induced pyroptosis. Acta Biochim Biophys Sin (Shanghai) 2020; 52:1131-1139. [PMID: 33085742 DOI: 10.1093/abbs/gmaa097] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Revised: 06/27/2020] [Accepted: 07/30/2020] [Indexed: 01/07/2023] Open
Abstract
Nasopharyngeal carcinoma (NPC) is a common cancer in southern China and Southeast Asia. Nowadays, radiotherapy is the therapy of choice for NPC patients, and chemotherapy has been found as an alternative treatment for advanced NPC patients. However, finding novel drugs and pharmacologically therapeutic targets for NPC patients is still urgent and beneficial. Our study showed that BIX-01294 (BIX) can induce autophagic vacuoles formation and conversion of LC3B-I to LC3B-II in NPC cells in both dose- and time-dependent manners. Notably, the combination of BIX and chemotherapeutic drugs significantly decreased the cell viability and increased the lactate dehydrogenase release. Meanwhile, BIX plus cis-platinum (Cis) treatment induced pyroptosis in NPC cells as featured by cell swelling and bubble blowing from the plasma membrane, the increased frequency of annexin V and propidium iodide (PI) double-positive cells, as well as the cleavage of gasdermin E (GSDME) and caspase-3. Moreover, the deficiency of GSDME completely shifted pyroptosis to apoptosis. Furthermore, the inhibition of autophagy by chloroquine and the knockout of ATG5 gene significantly blocked the BIX-induced autophagy as well as pyroptosis in both in vitro and in vivo studies. Our data demonstrated that BIX-combined chemotherapeutic drugs could induce the Bax/caspase-3/GSDME-mediated pyroptosis through the activation of autophagy to enhance the chemosensitivity in NPC.
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Affiliation(s)
- Qian Li
- Department of Otolaryngology Head and Neck Surgery, Xinqiao Hospital, Army Medical University (Third Military Medical University), Chongqing 400037, China
| | - Min Wang
- Department of Otolaryngology Head and Neck Surgery, Xinqiao Hospital, Army Medical University (Third Military Medical University), Chongqing 400037, China
| | - Yan Zhang
- Department of Otolaryngology Head and Neck Surgery, Xinqiao Hospital, Army Medical University (Third Military Medical University), Chongqing 400037, China
| | - Liuqian Wang
- Department of Otolaryngology Head and Neck Surgery, Xinqiao Hospital, Army Medical University (Third Military Medical University), Chongqing 400037, China
| | - Wei Yu
- Department of Otolaryngology Head and Neck Surgery, Xinqiao Hospital, Army Medical University (Third Military Medical University), Chongqing 400037, China
| | - Xiaomin Bao
- Department of Otolaryngology Head and Neck Surgery, Xinqiao Hospital, Army Medical University (Third Military Medical University), Chongqing 400037, China
| | - Biyun Zhang
- Department of Otolaryngology Head and Neck Surgery, Xinqiao Hospital, Army Medical University (Third Military Medical University), Chongqing 400037, China
| | - Yanghong Xiang
- Department of Otolaryngology Head and Neck Surgery, Xinqiao Hospital, Army Medical University (Third Military Medical University), Chongqing 400037, China
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Yang M, Huang W. Circular RNAs in nasopharyngeal carcinoma. Clin Chim Acta 2020; 508:240-248. [PMID: 32417214 DOI: 10.1016/j.cca.2020.05.029] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 05/13/2020] [Accepted: 05/13/2020] [Indexed: 12/15/2022]
Abstract
BACKGROUND Nasopharyngeal carcinoma (NPC) is a geographical distributed epithelial tumor of head and neck, which is prevalent in east Africa and Asia, especially southern China. Moreover, NPC has an unfavorable clinical effect and is prone to metastasis at an advanced stage. Although the recovery rate of patients has been improved due to concurrent chemoradiotherapy, poor curative effects and low overall survival remain key issues. The precise mechanisms and pivotal regulators of NPC remain still unclear. To improve the therapeutic efficacy, we focused on related-NPC circular RNAs (circRNAs). CircRNAs are a unique type of endogenous non-coding RNAs (ncRNAs) with a covalent closed-loop structure. Their expression is rich, stable and conservative. Different circRNA have specific tissue and developmental stages and can be detected in body fluids. In addition, circRNAs are involved in multiple pathological processes, especially in cancers. In recent years, using high-throughput indicator technology and bioinformatics technology, a large number of circRNAs have been identified in NPC cells and verified to have biological functions and mechanisms of action. This article aims to provide a retrospective review of the latest research on the proliferation and migration of related-NPC circRNA. Specifically, we focused on the roles and mechanisms of circRNAs in the development and progression of NPC. CONCLUSION CircRNA can act as an oncogene or tumor suppressor gene and participate in NPC progression (e.g., proliferation, apoptosis, migration, and invasion). In short, circRNAs have potential as biomarkers for the diagnosis, prognosis and treatment of NPC.
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Affiliation(s)
- Mingxiu Yang
- Cancer Research Institute, Hengyang Medical College of University of South China, Hunan Province Key Laboratory of Tumor Cellular & Molecular Pathology (2016TP1015), Hengyang, Hunan Province, People's Republic of China
| | - Weiguo Huang
- Cancer Research Institute, Hengyang Medical College of University of South China, Hunan Province Key Laboratory of Tumor Cellular & Molecular Pathology (2016TP1015), Hengyang, Hunan Province, People's Republic of China.
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Liu C, Li Y, Qin X, Yang Z, Luo J, Zhang J, Gray B, Pak KY, Xu X, Cheng J, Zhang Y. Early prediction of tumor response after radiotherapy in combination with cetuximab in nasopharyngeal carcinoma using 99m Tc-duramycin imaging. Biomed Pharmacother 2020; 125:109947. [PMID: 32058215 DOI: 10.1016/j.biopha.2020.109947] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 01/11/2020] [Accepted: 01/23/2020] [Indexed: 01/09/2023] Open
Abstract
PURPOSE 99mTc-duramycin imaging enables specific visualization of cell death qualitatively and quantitatively. This study aimed to investigate the potential of 99mTc-duramycin imaging in the early prediction of the curative effect of radiotherapy in combination with or without cetuximab in a nasopharyngeal carcinoma (NPC) model. METHODS Male BALB/c mice bearing NPC xenografts were randomized into four groups (six mice each group). Group 1 received radiotherapy (RT, 15 Gy/mouse) in combination with cetuximab (CTX, 2 mg/mouse), group 2 received RT (15 Gy/mouse), group 3 was treated using CTX (2 mg/mouse), and group 4, the control group, was treated using a vehicle. 99mTc-duramycin imaging was performed before treatment and 24 h after treatment to evaluate tumor response. Tumor uptake of 99mTc-duramycin was validated ex vivo using γ-counting. Treatment response was further validated by cleaved caspase-3 (CC3) and terminal deoxynucleotidyl transferase-mediated deoxyuridine triphosphate nick-end labeling (TUNEL). Another four groups were treated parallelly under the same conditions to observe treatment response by tumor volume changes. RESULTS After 24 h treatment, 99mTc-duramycin uptake in the NPC tumor models were significantly higher in group 1 than in group 2 (P < 0.05), group 3 (P < 0.05), or group 4 (P < 0.05); the uptake also increased notably in comparison with baseline values (P < 0.05). Compared with group 4, group 2 and group 3 both showed significant 99mTc-duramycin uptake in the tumors (P < 0.05). Although the 99mTc-duramycin uptake of group 2 was moderately higher than group 3, there were no significant differences between these two groups (P >0.05). There was a strong positive correlation between tumor 99mTc-duramycin uptake and CC3 (r = 0.893, p < 0.0001) and TUNEL (r = 0.918, P < 0.0001). Tumor volume decreased remarkably in the RT in combination with CTX group on day 5, in the RT alone group on day 7, and was inhibited on day 8 in the CTX alone group, whereas the tumors grew continuously in the control group. CONCLUSIONS We demonstrated that RT in combination with CTX treatment significantly improved disease control in a NPC xenograft model compared with monotherapy with either. 99mTc-duramycin imaging might be able to reliably identify response to RT in combination with CTX as early as 24 h after therapy initiation in NPC xenograft models. This might help to isolate non-responding patients in a timely manner and avoid unnecessary side effects in the clinic in the future.
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Affiliation(s)
- Cheng Liu
- Department of Nuclear Medicine, Shanghai Proton and Heavy Ion Center, Fudan University Cancer Hospital, Shanghai 201321, China; Shanghai Engineering Research Center of Proton and Heavy Ion Radiation Therapy, Shanghai 201321, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China; Center for Biomedical Imaging, Fudan University, Shanghai 200032, China; Shanghai Engineering Research Center of Molecular Imaging Probes, Shanghai 200032, China; Key Laboratory of Nuclear Physics and Ion-beam Application (MOE), Fudan University, Shanghai 200433, China
| | - Yi Li
- Department of Nuclear Medicine, Shanghai Proton and Heavy Ion Center, Fudan University Cancer Hospital, Shanghai 201321, China; Shanghai Engineering Research Center of Proton and Heavy Ion Radiation Therapy, Shanghai 201321, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China; Center for Biomedical Imaging, Fudan University, Shanghai 200032, China; Shanghai Engineering Research Center of Molecular Imaging Probes, Shanghai 200032, China; Key Laboratory of Nuclear Physics and Ion-beam Application (MOE), Fudan University, Shanghai 200433, China
| | - Xiaojia Qin
- Department of Nuclear Medicine, Shanghai Proton and Heavy Ion Center, Fudan University Cancer Hospital, Shanghai 201321, China; Shanghai Engineering Research Center of Proton and Heavy Ion Radiation Therapy, Shanghai 201321, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China; Center for Biomedical Imaging, Fudan University, Shanghai 200032, China; Shanghai Engineering Research Center of Molecular Imaging Probes, Shanghai 200032, China; Key Laboratory of Nuclear Physics and Ion-beam Application (MOE), Fudan University, Shanghai 200433, China
| | - Ziyi Yang
- Department of Nuclear Medicine, Shanghai Proton and Heavy Ion Center, Fudan University Cancer Hospital, Shanghai 201321, China; Shanghai Engineering Research Center of Proton and Heavy Ion Radiation Therapy, Shanghai 201321, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China; Center for Biomedical Imaging, Fudan University, Shanghai 200032, China; Shanghai Engineering Research Center of Molecular Imaging Probes, Shanghai 200032, China; Key Laboratory of Nuclear Physics and Ion-beam Application (MOE), Fudan University, Shanghai 200433, China
| | - Jianmin Luo
- Department of Nuclear Medicine, Shanghai Proton and Heavy Ion Center, Fudan University Cancer Hospital, Shanghai 201321, China; Shanghai Engineering Research Center of Proton and Heavy Ion Radiation Therapy, Shanghai 201321, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China; Center for Biomedical Imaging, Fudan University, Shanghai 200032, China; Shanghai Engineering Research Center of Molecular Imaging Probes, Shanghai 200032, China; Key Laboratory of Nuclear Physics and Ion-beam Application (MOE), Fudan University, Shanghai 200433, China
| | - Jianping Zhang
- Department of Nuclear Medicine, Shanghai Proton and Heavy Ion Center, Fudan University Cancer Hospital, Shanghai 201321, China; Shanghai Engineering Research Center of Proton and Heavy Ion Radiation Therapy, Shanghai 201321, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China; Center for Biomedical Imaging, Fudan University, Shanghai 200032, China; Shanghai Engineering Research Center of Molecular Imaging Probes, Shanghai 200032, China; Key Laboratory of Nuclear Physics and Ion-beam Application (MOE), Fudan University, Shanghai 200433, China
| | - Brian Gray
- Molecular Targeting Technologies, Inc., West Chester, PA, 19380, USA
| | - Koon Y Pak
- Molecular Targeting Technologies, Inc., West Chester, PA, 19380, USA
| | - Xiaoping Xu
- Department of Nuclear Medicine, Shanghai Proton and Heavy Ion Center, Fudan University Cancer Hospital, Shanghai 201321, China; Shanghai Engineering Research Center of Proton and Heavy Ion Radiation Therapy, Shanghai 201321, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China; Center for Biomedical Imaging, Fudan University, Shanghai 200032, China; Shanghai Engineering Research Center of Molecular Imaging Probes, Shanghai 200032, China; Key Laboratory of Nuclear Physics and Ion-beam Application (MOE), Fudan University, Shanghai 200433, China.
| | - Jingyi Cheng
- Department of Nuclear Medicine, Shanghai Proton and Heavy Ion Center, Fudan University Cancer Hospital, Shanghai 201321, China; Shanghai Engineering Research Center of Proton and Heavy Ion Radiation Therapy, Shanghai 201321, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China; Center for Biomedical Imaging, Fudan University, Shanghai 200032, China; Shanghai Engineering Research Center of Molecular Imaging Probes, Shanghai 200032, China; Key Laboratory of Nuclear Physics and Ion-beam Application (MOE), Fudan University, Shanghai 200433, China.
| | - Yingjian Zhang
- Department of Nuclear Medicine, Shanghai Proton and Heavy Ion Center, Fudan University Cancer Hospital, Shanghai 201321, China; Shanghai Engineering Research Center of Proton and Heavy Ion Radiation Therapy, Shanghai 201321, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China; Center for Biomedical Imaging, Fudan University, Shanghai 200032, China; Shanghai Engineering Research Center of Molecular Imaging Probes, Shanghai 200032, China; Key Laboratory of Nuclear Physics and Ion-beam Application (MOE), Fudan University, Shanghai 200433, China
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8
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Sun J, Yong J, Zhang H. microRNA-93, upregulated in serum of nasopharyngeal carcinoma patients, promotes tumor cell proliferation by targeting PDCD4. Exp Ther Med 2020; 19:2579-2587. [PMID: 32256737 PMCID: PMC7086147 DOI: 10.3892/etm.2020.8520] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Accepted: 07/20/2018] [Indexed: 12/14/2022] Open
Abstract
Deregulation of microRNAs (miRs) has been demonstrated to contribute to the development and malignant progression of nasopharyngeal carcinoma (NPC). Recently, miR-93 was reported to be significantly upregulated in NPC tissues and cell lines, and promote the proliferation, migration and invasion of NPC cells in vitro, as well as tumor growth in vivo. However, whether there is any clinical value of serum miR-93 expression in NPC still remains unclear. Therefore, the present study aimed to explore the clinical significance of serum miR-93 expression in NPC. A total of 85 serum samples from NPC patients and 30 from healthy controls were collected. Reverse transcription-quantitative polymerase chain reaction data demonstrated that the serum expression of miR-93 was significantly increased in NPC patients, when compared with those in healthy controls. Following receiving chemo-radiotherapy, the serum miR-93 levels were significantly decreased in NPC patients. Furthermore, the increased serum levels of miR-93 were significantly associated with advanced grade, clinical stage, lymph node metastasis, as well as worse 5-year overall survival of NPC patients. Furthermore, the serum miR-93 expression was demonstrated to be an independent factor for predicating the prognosis of NPC. In vitro experiments demonstrated that knockdown of miR-93 caused a decrease in NPC cell proliferation, whereas overexpression of miR-93 promoted NPC cell proliferation. PDCD4 was then identified as a direct target of miR-93 in NPC cells. Overexpression of PDCD4 significantly eliminated the promoting effects of miR-93 overexpression on NPC cell proliferation. Taken together, these findings suggest that the serum miR-93 expression could be used as a predicator for the clinical outcome of NPC patients, and suggest that miR-93 may also become a potential therapeutic target for NPC treatment.
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Affiliation(s)
- Jie Sun
- Department of Otolaryngology-Head and Neck Surgery, The Eighth Affiliated Hospital of Sun Yat-Senl University, Shenzhen, Guangdong 518000, P.R. China
| | - Jun Yong
- Department of Otolaryngology, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang 830054, P.R. China
| | - Hua Zhang
- Department of Otolaryngology, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang 830054, P.R. China
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Chung IC, Chen LC, Tsang NM, Chuang WY, Liao TC, Yuan SN, OuYang CN, Ojcius DM, Wu CC, Chang YS. Mitochondrial Oxidative Phosphorylation Complex Regulates NLRP3 Inflammasome Activation and Predicts Patient Survival in Nasopharyngeal Carcinoma. Mol Cell Proteomics 2020; 19:142-154. [PMID: 31723016 PMCID: PMC6944234 DOI: 10.1074/mcp.ra119.001808] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2019] [Revised: 11/01/2019] [Indexed: 12/19/2022] Open
Abstract
We previously reported that tumor inflammasomes play a key role in tumor control and act as favorable prognostic markers in nasopharyngeal carcinoma (NPC). Activated inflammasomes frequently form distinguishable specks and govern the cellular secretion of IL-1β. However, we know little about the biological and biochemical differences between cells with and without apoptosis-associated speck-like protein containing a caspase-recruitment domain (ASC) speck formation. In this study, we used proteomic iTRAQ analysis to analyze the proteomes of NPC cells that differ in their ASC speck formation upon cisplatin treatment. We identified proteins that were differentially over-expressed in cells with specks, and found that they fell into two Gene ontology (GO) pathways: mitochondrial oxidative phosphorylation (OxPhos) and ubiquinone metabolism. We observed up-regulation of various components of the OxPhos machinery (including NDUFB3, NDUFB8 and ATP5B), and subsequently found that these changes lead to mitochondrial ROS (mtROS) production, which promotes the formation and activation of NLRP3 inflammasomes and subsequent pyroptosis. In NPC patients, better local recurrence-free survival was significantly associated with high-level expression of NDUFB8 (p = 0.037) and ATP5B (p = 0.029), as examined using immunohistochemistry. However, there were no significant associations between the expression of NDUFB8 and ATP5B with overall survival of NPC patients. Together, our results demonstrate that up-regulated mitochondrial OxPhos components are strongly associated with NLRP3 inflammasome activation in NPC. Our findings further suggest that high-level expression of OxPhos components could be markers for local recurrence and/or promising therapeutic targets in patients with NPC.
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Affiliation(s)
- I-Che Chung
- Graduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University, Taoyuan, Taiwan; Molecular Medicine Research Center, Chang Gung University, Taoyuan, Taiwan
| | - Lih-Chyang Chen
- Department of Medicine, Mackay Medical College, New Taipei City 252, Taiwan
| | - Ngan-Ming Tsang
- Department of Radiation Oncology, Chang Gung Memorial Hospital, Linkou, Taoyuan, Taiwan; Department of Traditional Chinese Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Wen-Yu Chuang
- Department of Pathology, Chang Gung Memorial Hospital, Linkou, and Chang Gung University College of Medicine, Taoyuan, Taiwan
| | - Tzu-Chieh Liao
- Department of Biomedical Sciences, Chang Gung University, Taoyuan, Taiwan
| | - Sheng-Ning Yuan
- Molecular Medicine Research Center, Chang Gung University, Taoyuan, Taiwan
| | - Chun-Nan OuYang
- Molecular Medicine Research Center, Chang Gung University, Taoyuan, Taiwan
| | - David M Ojcius
- Department of Biomedical Sciences, University of the Pacific, San Francisco, California 94103; Center for Molecular and Clinical Immunology, Chang Gung University, Taoyuan, Taiwan; Chang Gung Immunology Consortium, Chang Gung Memorial Hospital, Linkou, Taoyuan, Taiwan
| | - Chih-Ching Wu
- Graduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University, Taoyuan, Taiwan; Department of Medical Biotechnology and Laboratory Science, College of Medicine, Chang Gung University, Taoyuan, Taiwan; Research Center for Emerging Viral Infections, College of Medicine, Chang Gung University, Taoyuan City 333, Taiwan; Department of Otolaryngology - Head & Neck Surgery, Chang Gung Memorial Hospital, Linkou, Taoyuan, Taiwan.
| | - Yu-Sun Chang
- Graduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University, Taoyuan, Taiwan; Molecular Medicine Research Center, Chang Gung University, Taoyuan, Taiwan; Department of Otolaryngology - Head & Neck Surgery, Chang Gung Memorial Hospital, Linkou, Taoyuan, Taiwan.
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10
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Yang J, Zhu D, Liu S, Shao M, Liu Y, Li A, Lv Y, Huang M, Lou D, Fan Q. Curcumin enhances radiosensitization of nasopharyngeal carcinoma by regulating circRNA network. Mol Carcinog 2019; 59:202-214. [PMID: 31793078 DOI: 10.1002/mc.23143] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2019] [Revised: 10/30/2019] [Accepted: 11/22/2019] [Indexed: 01/02/2023]
Abstract
Circular RNAs (circRNAs) are involved in the regulation of gene expression in different physiological and pathological processes. These macromolecules can act as microRNA (miRNA) sponges and play an important role as gene regulators throughout the circRNA-miRNA pathway. In this study, we established a radioresistance model with the nasopharyngeal carcinoma cell line CNE-2, and then analyzed the differences in the circRNAs between radioresistant and normal nasopharyngeal carcinoma cell lines using a high-throughput microarray. Tested circRNAs included 1042 upregulated and 1558 downregulated circRNAs. Relevant signaling pathways associated with the circRNAs and their target miRNAs were analyzed using bioinformatics analysis to determine the radioresistance of the differentially expressed circRNAs. Curcumin was used to treat irradiated cell lines, and changes in the circRNA before and after curcumin treatment were analyzed to investigate the radiosensitization effects of curcumin. The results showed that curcumin could regulate the circRNA-miRNA-messenger RNA network and inhibit the epidermal growth factor receptor (EGFR), signal transducers and activators of transcription 3 (STAT3), and growth factor receptor-bound protein 2 (GRB2) to achieve radiosensitization. Thus, circRNA acted as a miRNA sponge and regulated the expression of miRNA, thereby affecting EGFR, STAT3, and GRB2 expression and radiosensitization.
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Affiliation(s)
- Jiabin Yang
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong, China
| | - Daoqi Zhu
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong, China
| | - Shiya Liu
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong, China
| | - Meng Shao
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong, China
| | - Ying Liu
- NanFang Hospital, Guangzhou, Guangdong, China
| | - Aiwu Li
- NanFang Hospital, Guangzhou, Guangdong, China
| | - Ying Lv
- NanFang Hospital, Guangzhou, Guangdong, China
| | - Mu Huang
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong, China
| | - Dandan Lou
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong, China
| | - Qin Fan
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong, China
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11
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MicroRNA expression profiling analysis in serum for nasopharyngeal carcinoma diagnosis. Gene 2019; 727:144243. [PMID: 31743768 DOI: 10.1016/j.gene.2019.144243] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2019] [Revised: 10/26/2019] [Accepted: 10/29/2019] [Indexed: 12/11/2022]
Abstract
BACKGROUND Circulating microRNAs have become reliable sources of non-invasive biomarkers for cancer diagnosis. miRNA expression analysis in blood circulation for the identification of novel signatures might assist the early detection of nasopharyngeal carcinoma (NPC) patients. METHODS In the screening stage, the Exiqon miRNA qPCR panel was applied for the selection of candidate miRNAs. Serum samples taken from 208 NPC patients and 238 healthy donors (as normal controls (NCs)) were assigned to into the following three stages (training (30 NPC VS. 30 NCs), testing (138 NPC VS. 166 NCs) and external validation stage (40 NPC VS. 42 NCs)) for further confirmation of differently expressed miRNAs using qRT-PCR. The identified miRNA signatures were further explored in tissue specimens (48 NPC VS. 32 NCs) and serum-derived exosomes samples (32 NPC VS. 32 NCs). RESULTS Five miRNAs in serum including let-7b-5p, miR-140-3p, miR-192-5p, miR-223-3p and miR-24-3p were found to be significantly up-regulated in NPC patients compared to NCs. The five identified miRNAs were further combined into one panel and the areas under the receiver operating characteristic curve (AUCs) for three independent stages were 0.910 (training), 0.916 (testing) and 0.968 (external validation), respectively. miR-192-5p and miR-24-3p were consistently up-regulated in NPC tissues while let-7b-5p and miR-140-3p were conversely down-regulated. In serum-derived exosomes samples, no expression difference was observed between NPC patients and NCs. CONCLUSION A five-miRNA signature was identified in serum to be potential biomarkers for NPC detection.
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12
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Feng X, Xue H, Guo S, Chen Y, Zhang X, Tang X. MiR-874-3p suppresses cell proliferation and invasion by targeting ADAM19 in nasopharyngeal carcinoma. Panminerva Med 2019; 63:238-239. [PMID: 31352763 DOI: 10.23736/s0031-0808.19.03682-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Xinrong Feng
- ENT Department, Jinan Zhangqiu District Hospital of TCM, Jinan, China
| | - Huani Xue
- No.1 Department of Acupuncture and Moxibustion, Rizhao Hospital of TCM, Rizhao, China
| | - Shuiling Guo
- No.2 Department of Pediatrics, Jinan Zhangqiu District Hospital of TCM, Jinan, China
| | - Yan Chen
- Department of Hospital Infection-Control, The People's Hospital of Zhangqiu Area, Jinan, China
| | - Xingfeng Zhang
- Department of Infectious Diseases, The People's Hospital of Zhangqiu Area, Jinan, China
| | - Xiangqin Tang
- Department of Oncology, Jining No.1 People's Hospital, Jining, China -
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13
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Casein kinase 1α-dependent inhibition of Wnt/β-catenin selectively targets nasopharyngeal carcinoma and increases chemosensitivity. Anticancer Drugs 2019; 30:e0747. [PMID: 31305293 DOI: 10.1097/cad.0000000000000747] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Pyrvinium tosylate (PT) is an anthelminthic drug that has recently been shown to suppress various human cancers. However, whether PT is effective in nasopharyngeal carcinoma (NPC) has not been determined to date. In this work, we show the selective efficacy of PT in NPC while sparing normal nasopharyngeal epithelial cells, and its ability to increase chemosensitivity. We show that PT at 100 and 500 nmol/l significantly inhibits growth and induces apoptosis in several NPC cell lines without affecting normal nasopharyngeal epithelial cells. Using cell culture and xenograft mouse models, PT markedly enhances cisplatin's efficacy in NPC and the combination leads to almost complete tumor inhibition. Mechanism studies show that PT suppresses active, nuclear β-catenin level and activity and increases Axin level in NPC cells. β-Catenin overexpression completely reverses the inhibitory effects of PT, confirming that β-catenin is the molecular mechanism of PT's action in NPC. In addition, the effects of PT on β-catenin and Axin levels and on Wnt signaling in NPC cells are mediated by its activation of casine kinase 1α. Our work is the first to suggest that Wnt/β-catenin is a selective target for NPC treatment, and provides the preclinical evidence on the translational potential of PT as a useful addition to the treatment armamentarium for NPC.
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14
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Zhang Y, Yi X, Gao J, Li L, Liu L, Qiu T, Zhang J, Zhang Y, Liao W. Chemotherapy Potentially Facilitates the Occurrence of Radiation Encephalopathy in Patients With Nasopharyngeal Carcinoma Following Radiotherapy: A Multiparametric Magnetic Resonance Imaging Study. Front Oncol 2019; 9:567. [PMID: 31334108 PMCID: PMC6618298 DOI: 10.3389/fonc.2019.00567] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2019] [Accepted: 06/11/2019] [Indexed: 12/13/2022] Open
Abstract
Radiation encephalopathy (RE) is deemed to be a disease induced only by radiotherapy (RT), with the effects of chemotherapeutic agents on the brains of nasopharyngeal carcinoma (NPC) patients being largely overlooked. In this study, we investigated structural and functional brain alterations in NPC patients following RT with or without chemotherapy. Fifty-six pre-RT, 37 post-RT, and 108 post-CCRT (concomitant chemo-radiotherapy) NPC patients were enrolled in this study. A surface-based local gyrification index (LGI) was obtained from high resolution MRI and was used to evaluate between-group differences in cortical folding. Seed-based functional connectivity (FC) analysis of resting-state fMRI data was also conducted to investigate the functional significance of the cortical folding alterations. Compared with the Pre-RT group, patients in the Post-CCRT group showed LGI reductions in widespread brain regions including the bilateral temporal lobes, insula, frontal lobes, and parietal lobes. Compared with the Post-RT group, patients in the Post-CCRT group showed LGI reductions in the right insula, which extended to the adjacent frontal lobe. Seed-based FC analysis showed that patients in the Post-CCRT group had lower FC between the insula and the left middle frontal gyrus than patients in the Pre-RT group. The follow-up results showed that patients in the Post-CCRT group had a much higher RE incidence rate (20.4%) than patients in the Post-RT group (2.7%; P = 0.01). These findings indicate that chemotherapy potentially facilitated the occurrence of RE in NPC patients who underwent radiotherapy.
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Affiliation(s)
- Youming Zhang
- Department of Radiology, Xiangya Hospital, Central South University, Changsha, China
| | - Xiaoping Yi
- Department of Radiology, Xiangya Hospital, Central South University, Changsha, China
| | - Jianming Gao
- State Key Laboratory of Oncology in South China, Department of Radiation Oncology, Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Li Li
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Imaging Diagnosis and Interventional Center, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Lizhi Liu
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Imaging Diagnosis and Interventional Center, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Ting Qiu
- Key Laboratory for NeuroInformation of Ministry of Education, School of Life Sciences and Technology, University of Electronic Science and Technology of China, Chengdu, China
| | - Jinlei Zhang
- Key Laboratory for NeuroInformation of Ministry of Education, School of Life Sciences and Technology, University of Electronic Science and Technology of China, Chengdu, China
| | - Yuanchao Zhang
- Key Laboratory for NeuroInformation of Ministry of Education, School of Life Sciences and Technology, University of Electronic Science and Technology of China, Chengdu, China
| | - Weihua Liao
- Department of Radiology, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
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15
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Isoprenylcysteine carboxylmethyltransferase is associated with nasopharyngeal carcinoma chemoresistance and Ras activation. Biochem Biophys Res Commun 2019; 516:784-789. [PMID: 31253403 DOI: 10.1016/j.bbrc.2019.06.074] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Accepted: 06/15/2019] [Indexed: 12/29/2022]
Abstract
Development of chemo-resistance in nasopharyngeal carcinoma (NPC) poses the therapeutic challenge and its mechanisms are still poorly understood. In this work, we demonstrate that targeting isoprenylcysteine carboxylmethyltransferase (Icmt) is a therapeutic strategy to overcome NPC chemo-resistance. We found that Icmt mRNA and protein levels were increased in NPC cells after prolonged exposure to chemotherapy. Using pharmacological inhibitor cysmethynil or genetic siRNA approaches, we showed that Icmt inhibition was more effective against chemoresistant compared to chemosensitive NPC cells, suggesting that chemoresistant NPC cells is more dependent on Icmt function. The combination of Icmt inhibition with 5-FU or cisplatin resulted in greater efficacy than single chemotherapeutic agent alone in NPC. Notably, we demonstrated that the in vitro observations were translatable to in vivo NPC cancer xenograft mouse model. Mechanism analysis indicated that Icmt inhibition decreased Ras and RhoA activities, leading to the suppression of Ras and RhoA-mediated downstream signaling in NPC cells. The reverse of the inhibitory effects of cysmethynil by constitutively active Ras suggests that Ras is the critical effector of Icmt in NPC cells. Our work is the first to show that Icmt plays an important role in the development of NPC chemoresistance. Our findings also suggest that targeting Icmt represents a promising strategy to inhibit Ras function.
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16
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Hu Z, Zhen L, Li Q, Han Q, Hua Q. Ribavirin sensitizes nasopharyngeal carcinoma to 5-fluorouracil through suppressing 5-fluorouracil-induced ERK-dependent-eIF4E activation. Biochem Biophys Res Commun 2019; 513:862-868. [PMID: 31000196 DOI: 10.1016/j.bbrc.2019.04.053] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2019] [Accepted: 04/07/2019] [Indexed: 11/29/2022]
Abstract
Although overexpression of eukaryotic translation initiation factor 4E (eIF4E) is associated with enhanced growth and poor prognosis in nasopharyngeal carcinoma (NPC), the function of eIF4E in NPC response to chemotherapy has not been revealed. In this work, we demonstrate that eIF4E inhibition using both ribavirin and siRNA targets NPC cells and enhances the efficacy of 5-fluorouracil (5-FU). Mechanism studies indicate that 5-FU treatment increases phosphorylation of eIF4E in NPC cells, and this is dependent on ERK activation. eIF4E inhibition thus significantly sensitizes NPC cell response to 5-FU. Of note, ribavirin is a clinically available anti-viral drug. We show that ribavirin exhibits preferential toxicity to NPC with normal nasopharyngeal epithelial cells largely unaffected. Ribavirin acts on NPC cells via inhibiting eIF4E/Akt signaling, and the suppression of eIF4E by ribavirin are not the consequence of inhibition of eIF4E upstream signaling: Mnk and mTOR. In two independent NPC xenograft mouse models, ribavirin at well-tolerated dose that significantly inhibited NPC growth as single drug alone and its combination with 5-FU completely arrests tumor growth throughout the whole duration of treatment, without causing toxicity in mice. Our findings provide the better understanding on the role of eIF4E in NPC in response to 5-FU and preclinical rationale to explore ribavirin as a sensitizing strategy to treat NPC, particularly in those who develop 5-FU resistance.
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Affiliation(s)
- Zhihua Hu
- Department of Otolaryngology, Xianning Central Hospital, The First Affiliated Hospital of Hubei University of Science and Technology, Xianning, Hubei, China
| | - Lanfang Zhen
- Department of Rheumatology, Rheumatism Hospital of MaTang Xianning, Xianning, Hubei, China
| | - Qin Li
- Department of Otolaryngology, The Second Clinical Medical College, Yangtze University, Jingzhou, Hubei, China
| | - Qi Han
- Department of Oncology, Xianning Central Hospital, The First Affiliated Hospital of Hubei University of Science and Technology, Xianning, Hubei, China
| | - Qinquan Hua
- Department of Otolaryngology Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, China.
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17
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Yugui F, Wang H, Sun D, Zhang X. Nasopharyngeal cancer combination chemoradiation therapy based on folic acid modified, gefitinib and yttrium 90 co-loaded, core-shell structured lipid-polymer hybrid nanoparticles. Biomed Pharmacother 2019; 114:108820. [PMID: 30951947 DOI: 10.1016/j.biopha.2019.108820] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Revised: 03/23/2019] [Accepted: 03/26/2019] [Indexed: 12/21/2022] Open
Abstract
Current treatment of advanced-stage nasopharyngeal carcinoma (NPC) is not satisfactory. Here, we developed a folic acid (FA) modified, gefitinib (GEF) and yttrium 90 (Y90) co-loaded, core-shell structured lipid-polymer hybrid nanoparticles (FA-GEF-Y90-LPNP). The size and zeta potential, drug release behavior, and uptake by tumor cells were investigated. The antitumor efficiency and toxicity of LPNP were evaluated in cancer cells and in tumor bearing mice. FA-GEF-Y90-LPNP with a mean size of 150 nm and zeta potential of -40 mV was able to enhance the accumulation in the NPC cells and exhibited the highest cytotoxicity. The AUC and T1/2 of FA-GEF-Y90-LPNP group was 217.62 ± 10.32 mg/L.h and 12.09 ± 0.43 h, respectively. FA-GEF-Y90-LPNP exhibited the best in vivo tumor inhibition ability, leading to a 221.2 ± 13.5 mm3 of tumor volume at day 21. FA-GEF-Y90-LPNP treatment resulted in almost no difference in the body weight. This may be the evidence that the systemic toxicity of FA-GEF-Y90-LPNP is low and may be used as safety system for the treatment of NPC.
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Affiliation(s)
- Fu Yugui
- Department of Otolaryngology, Linyi People's Hospital, Linyi, Shandong, China
| | - Hailan Wang
- Department of Internal Medicine, Linyi People's Hospital, Linyi, Shandong, China
| | - Dezhong Sun
- Department of Otolaryngology, Linyi People's Hospital, Linyi, Shandong, China
| | - Xiaoyan Zhang
- Department of Oncology, Linyi People's Hospital, Linyi, Shandong, China.
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18
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Nasopharyngeal cancer in Saudi Arabia: Epidemiology and possible risk factors. JOURNAL OF ONCOLOGICAL SCIENCES 2019. [DOI: 10.1016/j.jons.2019.01.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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19
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Suppression of oncogenic protein translation via targeting eukaryotic translation initiation factor 4E overcomes chemo-resistance in nasopharyngeal carcinoma. Biochem Biophys Res Commun 2019; 512:902-907. [PMID: 30929914 DOI: 10.1016/j.bbrc.2019.03.118] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Accepted: 03/18/2019] [Indexed: 12/18/2022]
Abstract
Resistance to adjuvant chemotherapy remains therapeutic challenge in nasopharyngeal carcinoma (NPC). In this work, we demonstrate that targeting eukaryotic translation initiation factor 4E (eIF4E) is a potential sensitizing strategy to overcome chemoresistance in NPC. We observe the aberrant activation of eIF4E and translational upregulation of eIF4E-regulated oncogenes in NPC cell after pro-longed exposure of cisplatin. Functional analysis demonstrates that eIF4E depletion effectively inhibits proliferation and induces apoptosis in cisplatin-resistant NPC cells. Consistently, eIF4E knockdown significantly enhances cisplatin efficacy in cisplatin-sensitive cells. We identify eIF4E as a therapeutically actionable targets by showing that ribavirin, an anti-viral drug, phenocopies the effects of eIF4E knockdown in NPC. We further demonstrate that ribavirin acts on chemoresistant NPC cells through suppressing eIF4E activity and oncogenic protein translation. Using two independent NPC xenograft mouse models, we show that ribavirin not only is effective in inhibiting chemoresistant NPC growth but also significantly augments the inhibitory effects of cisplatin efficacy in vivo without causing significant toxicity in mice. Taken together, our work shows an activation of eIF4E-mediated growth and survival mechanisms in response to chemotherapy and suggests that inhibition of eIF4E activity represents an attractive sensitizing strategy for NPC treatment. Our findings also suggest that ribavirin is a useful addition to the treatment armamentarium for NPC.
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20
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Pan Y, Zhang Y, Gong L, Zou J, Hu B, Zhang S. IMB-6G induces endoplasmic reticulum stress-mediated apoptosis in human nasopharyngeal carcinoma cells. Exp Ther Med 2018; 16:4187-4192. [PMID: 30402159 DOI: 10.3892/etm.2018.6724] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Accepted: 06/29/2018] [Indexed: 11/06/2022] Open
Abstract
IMB-6G is a novel N-substituted sophoridine acid that has been reported to have anticancer effects. The purpose of the present study was to investigate the effect and underlying mechanism of IMB-6G on human nasopharyngeal carcinoma (NPC) cells. The NPC cell line C666-1 was used in the present study and treated with different concentrations of IMB-6G (0, 1, 2 and 5 µM) for 24 h. Subsequently, cell viability was determined using the Cell Counting kit-8 assay and cell apoptosis was analyzed by performing flow cytometry. The expression levels of genes and proteins in the current study were determined using reverse transcription-quantitative polymerase chain reaction and western blot analysis, respectively. Results indicated that IMB-6G dose-dependently inhibited C666-1 cell viability and induced apoptosis. It was also revealed that IMB-6G induced apoptosis via inducing endoplasmic reticulum (ER) stress activation. Notably, IMB-6G administration enhanced the expression levels of Binding immunoglobulin protein and CCAAT-enhancer-binding protein homologous protein in C666-1 cells. Further analysis suggested that IMB-6G treatment activated inositol-requiring enzyme 1α (IRE1α) and PKR-like ER kinase (PERK) signaling pathways in C666-1 cells. In addition, silencing of IRE1α and PERK significantly reversed IMB-6G-induced cell growth inhibition and apoptosis. In conclusion, the present findings indicated that IMB-6G induced ER stress-mediated apoptosis through activating IRE1α and PERK signaling pathways. The present study suggests that IMB-6G may be a promising agent for NPC treatment.
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Affiliation(s)
- Yeting Pan
- Department of Otorhinolaryngology, Affiliated Cixi Hospital of Wenzhou Medical College, Cixi, Zhejiang 315300, P.R. China
| | - Yanni Zhang
- Department of Otorhinolaryngology, Affiliated Cixi Hospital of Wenzhou Medical College, Cixi, Zhejiang 315300, P.R. China
| | - Liang Gong
- Department of Otorhinolaryngology, Affiliated Cixi Hospital of Wenzhou Medical College, Cixi, Zhejiang 315300, P.R. China
| | - Jianding Zou
- Department of Otorhinolaryngology, Affiliated Cixi Hospital of Wenzhou Medical College, Cixi, Zhejiang 315300, P.R. China
| | - Boxia Hu
- Department of Otorhinolaryngology, Affiliated Cixi Hospital of Wenzhou Medical College, Cixi, Zhejiang 315300, P.R. China
| | - Sicong Zhang
- Department of Otorhinolaryngology, Affiliated Cixi Hospital of Wenzhou Medical College, Cixi, Zhejiang 315300, P.R. China
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21
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Wang M, Jia M, Yuan K. MicroRNA-663b promotes cell proliferation and epithelial mesenchymal transition by directly targeting SMAD7 in nasopharyngeal carcinoma. Exp Ther Med 2018; 16:3129-3134. [PMID: 30250517 DOI: 10.3892/etm.2018.6576] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Accepted: 03/23/2018] [Indexed: 01/06/2023] Open
Abstract
MicroRNAs (miRs) serve important roles in the development of various types of human cancer, including nasopharyngeal carcinoma (NPC). In the present study, the expression levels of miR-663b in NPC were investigated and its role and underlying mechanisms were examined. Reverse transcription-quantitative polymerase chain reaction was performed to assess miR-663b expression levels in NPC tissues and C666-1 cells. TargetScan was applied to predict the putative targets of miR-663b and the dual luciferase reporter assay was used to confirm the predictions. To investigate the role of miR-663b in NPC, the NPC C666-1 cell line was transfected with miR-663b mimics, miR-663b inhibitors or negative control. The Cell Counting kit-8 assay was performed for cell proliferation detection and western blot analysis was applied to determine the expression levels of epithelial mesenchymal transition (EMT)-associated proteins. Results indicated that when compared with the adjacent normal tissues and the normal nasopharyngeal epithelial cells, miR-663b expression levels were significantly upregulated in the NPC tissues and the NPC cells (P<0.01). Notably, SMAD7 is a target gene of miR-663b and may be inhibited by miR-663b. Results indicated that NPC cell proliferation was significantly promoted by miR-663b mimics and significantly inhibited by miR-663b inhibitors (P<0.05 and P<0.01). In addition, the results indicated that, when compared with the negative control group the expression levels of E-cadherin were significantly decreased, whereas the expression levels of N-cadherin, Vimentin and matrix metalloproteinase-9 were significantly increased in the cells of the miR-663b mimics group (P<0.05 and P<0.01). However, cells in the miR-663b inhibitors group exhibited the opposite effects. In conclusion, the results of the present study indicated that miR-663b functions as a tumor promoter in NPC via promoting NPC cell proliferation and EMT by directly targeting SMAD7.
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Affiliation(s)
- Meirong Wang
- Department of ENT, Tongji Medical College, Huazhong University of Science and Technology, The Central Hospital of Wuhan, Wuhan, Hubei 430014, P.R. China
| | - Min Jia
- Department of ENT, Tongji Medical College, Huazhong University of Science and Technology, The Central Hospital of Wuhan, Wuhan, Hubei 430014, P.R. China
| | - Kun Yuan
- Department of ENT, Tongji Medical College, Huazhong University of Science and Technology, The Central Hospital of Wuhan, Wuhan, Hubei 430014, P.R. China
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22
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Fernandes Q, Merhi M, Raza A, Inchakalody VP, Abdelouahab N, Zar Gul AR, Uddin S, Dermime S. Role of Epstein-Barr Virus in the Pathogenesis of Head and Neck Cancers and Its Potential as an Immunotherapeutic Target. Front Oncol 2018; 8:257. [PMID: 30035101 PMCID: PMC6043647 DOI: 10.3389/fonc.2018.00257] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Accepted: 06/22/2018] [Indexed: 12/18/2022] Open
Abstract
The role of Epstein-Barr virus (EBV) infection in the development and progression of tumor cells has been described in various cancers. Etiologically, EBV is a causative agent in certain variants of head and neck cancers such as nasopharyngeal cancer. Proteins expressed by the EVB genome are involved in invoking and perpetuating the oncogenic properties of the virus. However, these protein products were also identified as important targets for therapeutic research in the past decades, particularly within the context of immunotherapy. The adoptive transfer of EBV-targeted T-cells as well as the development of EBV vaccines has opened newer lines of research to conceptualize novel therapeutic approaches toward the disease. This review addresses the most important aspects of the association of EBV with head and neck cancers from an immunological perspective. It also aims to highlight the current and future prospects of enhanced EBV-targeted immunotherapies.
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Affiliation(s)
- Queenie Fernandes
- Translational Cancer Research Facility, Hamad Medical Corporation, Doha, Qatar
- National Center for Cancer Care and Research, Hamad Medical Corporation, Doha, Qatar
| | - Maysaloun Merhi
- Translational Cancer Research Facility, Hamad Medical Corporation, Doha, Qatar
- National Center for Cancer Care and Research, Hamad Medical Corporation, Doha, Qatar
| | - Afsheen Raza
- Translational Cancer Research Facility, Hamad Medical Corporation, Doha, Qatar
- National Center for Cancer Care and Research, Hamad Medical Corporation, Doha, Qatar
| | - Varghese Philipose Inchakalody
- Translational Cancer Research Facility, Hamad Medical Corporation, Doha, Qatar
- National Center for Cancer Care and Research, Hamad Medical Corporation, Doha, Qatar
| | - Nassima Abdelouahab
- Translational Cancer Research Facility, Hamad Medical Corporation, Doha, Qatar
- National Center for Cancer Care and Research, Hamad Medical Corporation, Doha, Qatar
| | - Abdul Rehman Zar Gul
- National Center for Cancer Care and Research, Hamad Medical Corporation, Doha, Qatar
| | - Shahab Uddin
- Interim Translational Research Institute, Hamad Medical Corporation, Doha, Qatar
| | - Said Dermime
- Translational Cancer Research Facility, Hamad Medical Corporation, Doha, Qatar
- National Center for Cancer Care and Research, Hamad Medical Corporation, Doha, Qatar
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23
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Zhang G, Zhang S, Ren J, Yao C, Zhao Z, Qi X, Zhang X, Wang S, Li L. Salinomycin may inhibit the cancer stem-like populations with increased chemoradioresistance that nasopharyngeal cancer tumorspheres contain. Oncol Lett 2018; 16:2495-2500. [PMID: 30013643 DOI: 10.3892/ol.2018.8923] [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: 01/01/2016] [Accepted: 11/07/2017] [Indexed: 01/10/2023] Open
Abstract
Tumor recurrence and metastasis of nasopharyngeal cancer (NPC) often result in the failure of treatment due to chemoradioresistance. Cancer stem cells (CSCs) have been observed to drive tumor initiation and tumor chemoradioresistance. Therefore, the poor prognosis of advanced NPC is likely to result from the failure to kill CSCs. Sphere formation may be used as an experimental method to enrich potential CSC subpopulations. At present, there are few reports on NPC tumorspheres. The present study focused on examining the cancer stem-like properties of NPC tumorspheres from NPC cell lines. Western blot analysis revealed that NPC tumorspheres had a higher expression of stem cell markers Nanog homeobox and SRY-box 2, compared with parental cells. It was additionally verified that NPC tumorspheres contained a high aldehyde dehydrogenase (ALDH) enzymatic activity compared with parental cells. ALDH+ cells were amplified by 9- to 10-fold in tumorspheres, compared with parental cells (1.8 vs. 16.9%). The tumorsphere cells exhibited an increased half maximal inhibitory concentration value of >10-fold with cisplatin compared with the control parental cells. Compared with the parental cells, the percentage of side population cells in the tumorsphere cell population increased significantly (10.3 vs. 2.3%; P<0.05). NPC tumorsphere cells demonstrated enhanced resistance to radiation. Further investigation verified that salinomycin inhibited NPC CSCs by selectively targeting its stem cells. Altogether, the data revealed that NPC tumorspheres contain cancer stem-like populations with increased chemoradioresistance. It was suggested that the serum-free culture of NPC cells may provide an appropriate model for researching the sensitivity of CSCs to therapeutic agents. It was additionally revealed that salinomycin is an efficient inhibitor of NPC CSCs, supporting the hypothesis that salinomycin may eliminate CSCs and imply a need for further clinical evaluation.
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Affiliation(s)
- Gong Zhang
- Department of Radiotherapy, People's Hospital of Shanxi Province, Taiyuan, Shanxi 030012, P.R. China
| | - Shuping Zhang
- Department of Radiotherapy, People's Hospital of Shanxi Province, Taiyuan, Shanxi 030012, P.R. China
| | - Jinjin Ren
- Department of Radiotherapy, People's Hospital of Shanxi Province, Taiyuan, Shanxi 030012, P.R. China
| | - Chunxiao Yao
- Department of Radiotherapy, People's Hospital of Shanxi Province, Taiyuan, Shanxi 030012, P.R. China
| | - Zhongren Zhao
- Department of Radiotherapy, People's Hospital of Shanxi Province, Taiyuan, Shanxi 030012, P.R. China
| | - Xiurong Qi
- Department of Radiotherapy, People's Hospital of Shanxi Province, Taiyuan, Shanxi 030012, P.R. China
| | - Xiaofeng Zhang
- Department of Radiotherapy, People's Hospital of Shanxi Province, Taiyuan, Shanxi 030012, P.R. China
| | - Shuye Wang
- Department of Radiotherapy, People's Hospital of Shanxi Province, Taiyuan, Shanxi 030012, P.R. China
| | - Lei Li
- Department of Radiotherapy, People's Hospital of Shanxi Province, Taiyuan, Shanxi 030012, P.R. China
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Hu J, Bao C, Gao J, Guan X, Hu W, Yang J, Hu C, Kong L, Lu JJ. Salvage treatment using carbon ion radiation in patients with locoregionally recurrent nasopharyngeal carcinoma: Initial results. Cancer 2018; 124:2427-2437. [PMID: 29579324 PMCID: PMC6001443 DOI: 10.1002/cncr.31318] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Revised: 12/28/2017] [Accepted: 01/08/2018] [Indexed: 12/25/2022]
Abstract
BACKGROUND Reirradiation for locoregionally recurrent nasopharyngeal carcinoma (NPC) after a definitive dose of radiotherapy (RT) is challenging and usually associated with severe toxicities. Intensity‐modulated carbon ion RT (IMCT) offers physical/biologic advantages over photon‐based intensity‐modulated RT. Herein, the authors report their initial experience of IMCT in previously irradiated patients with locoregionally recurrent NPC. METHODS Patients with locoregionally recurrent, poorly differentiated or undifferentiated NPC who underwent salvage therapy with IMCT at the Shanghai Proton and Heavy Ion Center between May 2015 and August 2017 were included in the current study. The IMCT doses were 50 to 66 Gray equivalent (GyE) (2.0‐3.0 GyE/daily fraction), delivered via raster scanning technology. The 1‐year overall survival, disease‐specific survival, progression‐free survival (PFS), local recurrence‐free survival, regional recurrence‐free survival, and distant metastasis‐free survival were calculated. Univariate and multivariate analyses of PFS were performed to identify possible predictive factors. RESULTS Among the 75 patients included, 4 patients, 14 patients, 29 patients, and 28 patients, respectively, had recurrent American Joint Committee on Cancer stage I, stage II, stage III, and stage IVA/B disease. With a median follow‐up of 15.4 months (range, 2.6‐29.7 months), the 1‐year overall survival, disease‐specific survival, PFS, local recurrence‐free survival, regional recurrence‐free survival, and distant metastasis‐free survival rates were 98.1%, 98.1%, 82.2%, 86.6%, 97.9%, and 96.2%, respectively. A higher fraction size of 3 GyE (vs <3 GyE) or a higher biological equivalent dose significantly improved the PFS rate on univariate analysis, but not on multivariate analysis. No patient developed acute toxicity of grade ≥2 during IMCT. Late treatment‐induced severe (grade 3 or 4) toxicities were infrequent, but included mucosal necrosis (9.3%), xerostomia (1.3%), and temporal lobe necrosis (1.3%). CONCLUSIONS This initial experience in the first 75 patients with locoregionally recurrent NPC was encouraging. Carbon ion RT could provide promising survival rates with infrequent severe toxicities for patients with locoregionally recurrent NPC. Cancer 2018;124:2427‐37. © 2018 The Authors. Cancer published by Wiley Periodicals, Inc. on behalf of American Cancer Society. Reirradiation for locoregionally recurrent nasopharyngeal carcinoma after a definitive dose of radiotherapy is challenging and usually associated with severe toxicities. Carbon ion radiotherapy provides promising short‐term survival rates for patients with locoregionally recurrent nasopharyngeal carcinoma, with few treatment‐induced severe adverse effects noted.
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Affiliation(s)
- Jiyi Hu
- Department of Radiation Oncology, Shanghai Proton and Heavy Ion Center, Shanghai, China
| | - Cihang Bao
- Department of Radiation Oncology, Shanghai Proton and Heavy Ion Center, Fudan University Cancer Hospital, Shanghai, China
| | - Jing Gao
- Department of Radiation Oncology, Shanghai Proton and Heavy Ion Center, Shanghai, China
| | - Xiyin Guan
- Department of Radiation Oncology, Shanghai Proton and Heavy Ion Center, Shanghai, China
| | - Weixu Hu
- Department of Radiation Oncology, Shanghai Proton and Heavy Ion Center, Shanghai, China
| | - Jing Yang
- Department of Radiation Oncology, Shanghai Proton and Heavy Ion Center, Shanghai, China
| | - Chaosu Hu
- Department of Radiation Oncology, Shanghai Proton and Heavy Ion Center, Fudan University Cancer Hospital, Shanghai, China
| | - Lin Kong
- Department of Radiation Oncology, Shanghai Proton and Heavy Ion Center, Fudan University Cancer Hospital, Shanghai, China
| | - Jiade J Lu
- Department of Radiation Oncology, Shanghai Proton and Heavy Ion Center, Shanghai, China
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Abstract
In children, nasopharyngeal carcinoma (NPC) is a very rare tumor, mostly Epstein-Barr Virus related and quite always diagnosed at a locally advanced stage. With current protocols associating induction cisplatin-based chemotherapy and concomitant chemoradiotherapy, prognosis is excellent with overall survival higher than 85%. However, long-term toxicities are frequent. Improvement in radiation therapy modalities like intensity-modulated radiation therapy and new strategies with radiation dose adaptation to chemotherapy response have been introduced to reduce acute and long-term toxicities. Actually, 2 main questions remain: is it possible to pursue a therapeutic deescalation in children with low-risk NPC or very good response to induction chemotherapy in order to reduce the risk of late effects? Could an immunologic maintenance treatment improve prognosis of children with high-risk NPC? International collaborative groups and prospective trials including biological studies are necessary to answer these questions to improve childhood NPC treatment and knowledge.
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26
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Zhang G, Wang W, Yao C, Zhang S, Liang L, Han M, Ren J, Qi X, Zhang X, Wang S, Li L. Radiation-resistant cancer stem-like cell properties are regulated by PTEN through the activity of nuclear β-catenin in nasopharyngeal carcinoma. Oncotarget 2017; 8:74661-74672. [PMID: 29088815 PMCID: PMC5650370 DOI: 10.18632/oncotarget.20339] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Accepted: 07/26/2017] [Indexed: 01/06/2023] Open
Abstract
Radiotherapy is the primary and most important treatment for nasopharyngeal carcinoma (NPC). Cancer stem-like cells (CSCs) have been shown to be resistant to radiation. The phosphatase and tensin homolog deleted on chromosome 10 (PTEN) tumor suppressor gene has been suggested to play a role in stem cell self-renewal. In the present study, we sorted PTEN−/+ cells using a flow cytometer. The clone formation assay showed that PTEN− cells were more radioresistant than PTEN+ NPC cells. We found that PTEN− cells demonstrated a significant increase in tumorsphere formation and CSCs markers compared with PTEN+ cells. Silencing the expression of PTEN with siRNA resulted in increased expression of p-AKT, active β-catenin and Nanog. siPTEN cells irradiated showed more radioresistant and DNA damage than parental cells. We also confirmed that down-regulation of β-catenin expression with shRNA resulted in a reduced percentage of side population cells and expression of Nanog. shβ-catenin cells significantly decreased survivin expression at 4 Gy irradiation in PTEN− cells compared with PTEN+ cells. In siPTEN cells, β-catenin staining shifted from the cytoplasmic membrane to the nucleus. Furthermore, immunofluorescence showed that following irradiation of PTEN− cells, at 4 Gy, active β-catenin was mainly found in the nucleus. Immunohistochemistry analysis also demonstrated that the PTEN−/p-AKT+/β-catenin+/Nanog+ axis may indicate poor prognosis and radioresistance in clinical NPC specimens. Thus, our findings strongly suggest that PTEN− cells have CSCs properties that are resistant to radiation in NPC. PTEN exerts these effects through the downstream effector PI3K/AKT/β-catenin/Nanog axis which depends on nuclear β-catenin accumulation.
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Affiliation(s)
- Gong Zhang
- Department of Radiotherapy of People's Hospital of Shanxi Province, Taiyuan 030012, PR China
| | - Wenjun Wang
- Research Institute of Respiratory Diseases, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, PR China
| | - Chunxiao Yao
- Department of Radiotherapy of People's Hospital of Shanxi Province, Taiyuan 030012, PR China
| | - Shuping Zhang
- Department of Radiotherapy of People's Hospital of Shanxi Province, Taiyuan 030012, PR China
| | - Lili Liang
- Department of Dermatology of People's Hospital of Shanxi Province, Taiyuan 030012, PR China
| | - Muyuan Han
- Department of Ophthalmology of People's Hospital of Shanxi Province, Taiyuan 030012, PR China
| | - Jinjin Ren
- Department of Radiotherapy of People's Hospital of Shanxi Province, Taiyuan 030012, PR China
| | - Xiurong Qi
- Department of Radiotherapy of People's Hospital of Shanxi Province, Taiyuan 030012, PR China
| | - Xiaofeng Zhang
- Department of Radiotherapy of People's Hospital of Shanxi Province, Taiyuan 030012, PR China
| | - Shuye Wang
- Department of Radiotherapy of People's Hospital of Shanxi Province, Taiyuan 030012, PR China
| | - Lei Li
- Department of Radiotherapy of People's Hospital of Shanxi Province, Taiyuan 030012, PR China
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Liang S, Zhang N, Deng Y, Chen L, Zhang Y, Zheng Z, Luo W, Lv Z, Li S, Xu T. miR-663 promotes NPC cell proliferation by directly targeting CDKN2A. Mol Med Rep 2017; 16:4863-4870. [PMID: 28765905 DOI: 10.3892/mmr.2017.7129] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2016] [Accepted: 05/22/2017] [Indexed: 11/06/2022] Open
Abstract
MicroRNAs (miRs) act as important regulators during the development and progression of human cancer; however, the regulatory mechanism of miR-663 in nasopharyngeal carcinoma (NPC) remains unclear. The present study demonstrated that serum miR‑663 levels were significantly increased in patients with NPC compared with healthy controls. In addition, the serum levels of miR‑663 were associated with the grade, lymph node metastasis and clinical stage of NPC. The expression of miR‑663 was increased in NPC C666‑1 cells, compared with normal nasopharyngeal epithelial NP69 cells. The knockdown of miR‑663 markedly decreased the proliferation of C666‑1 cells through the induction of cell cycle arrest at the G1 stage. Cyclin‑dependent kinase inhibitor 2A (CDKN2A) was hypothesized to be a putative target of miR‑663. Further investigation confirmed that miR‑663 was able to directly bind to the 3' untranslated region of CDKN2A mRNA, and to negatively regulate CDKN2A protein expression in C666‑1 cells. Inhibition of CDKN2A expression attenuated the suppressive effects of miR‑663 knockdown on the proliferation and cell cycle progression of C666‑1 cells. In addition, it was observed that the mRNA and protein levels of CDKN2A were decreased in C666‑1 cells compared with NP69 cells. In conclusion, the results of the present study demonstrated that miR‑663 promoted the proliferation and cell cycle progression of NPC cells by directly targeting CDKN2A, suggesting that miR‑663 may become a potential therapeutic target for the treatment of NPC.
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Affiliation(s)
- Shaoqiang Liang
- Department of Radiotherapy, Tumor Hospital of First People's Hospital of Foshan, Foshan, Guangdong 528041, P.R. China
| | - Ning Zhang
- Department of Radiotherapy, Tumor Hospital of First People's Hospital of Foshan, Foshan, Guangdong 528041, P.R. China
| | - Yanming Deng
- Department of Radiotherapy, Tumor Hospital of First People's Hospital of Foshan, Foshan, Guangdong 528041, P.R. China
| | - Lusi Chen
- Department of Radiotherapy, Tumor Hospital of First People's Hospital of Foshan, Foshan, Guangdong 528041, P.R. China
| | - Yang Zhang
- Department of Radiotherapy, Tumor Hospital of First People's Hospital of Foshan, Foshan, Guangdong 528041, P.R. China
| | - Zhenhe Zheng
- Department of Radiotherapy, Tumor Hospital of First People's Hospital of Foshan, Foshan, Guangdong 528041, P.R. China
| | - Weijun Luo
- Department of Radiotherapy, Tumor Hospital of First People's Hospital of Foshan, Foshan, Guangdong 528041, P.R. China
| | - Zhiqian Lv
- Department of Radiotherapy, Tumor Hospital of First People's Hospital of Foshan, Foshan, Guangdong 528041, P.R. China
| | - Shaoen Li
- Department of Radiotherapy, Tumor Hospital of First People's Hospital of Foshan, Foshan, Guangdong 528041, P.R. China
| | - Tao Xu
- Department of Radiotherapy, Tumor Hospital of First People's Hospital of Foshan, Foshan, Guangdong 528041, P.R. China
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Liang S, Zhang N, Deng Y, Chen L, Zhang Y, Zheng Z, Luo W, Lv Z, Li S, Xu T. miR-663b promotes tumor cell proliferation, migration and invasion in nasopharyngeal carcinoma through targeting TUSC2. Exp Ther Med 2017; 14:1095-1103. [PMID: 28781619 PMCID: PMC5526187 DOI: 10.3892/etm.2017.4608] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Accepted: 05/31/2017] [Indexed: 12/13/2022] Open
Abstract
The authors' previous study revealed that the serum levels of microRNA (miR)-663b are significantly increased in patients with nasopharyngeal carcinoma (NPC), and are associated with NPC progression and poor prognosis. However, the molecular mechanism of underlying NPC growth and metastasis remains unclear. In the present study, quantitative polymerase chain reaction and western blot analyses were performed to examine changes to mRNA and protein expression, respectively. MTT, wound healing and Transwell assays were used to examine cell proliferation, migration and invasion, respectively. Luciferase reporter gene assays were performed to identify target genes of miR-663b. It was demonstrated that miR-663b was significantly upregulated in NPC tissue compared with non-tumor nasopharyngeal epithelial tissue samples. Furthermore, miR-663b expression gradually increased with advancing stages of NPC, with the highest expression being observed in the latest stage IV. The increased expression of miR-663b was associated with advanced clinical stage and lymph node metastasis. In addition, miR-663b expression was increased in NPC cell lines compared with normal nasopharyngeal epithelial NP69 cells. Knockdown of miR-663b resulted in a significant reduction in the proliferation, migration and invasion of NPC CNE1 cells. Tumor suppressor candidate 2 (TUSC2) was identified as a novel target gene of miR-663b. It was further demonstrated that TUSC2 was significantly downregulated in NPC tissue samples and cell lines. miR-663b negatively regulated the expression of TUSC2 at the post-transcriptional level in CNE1 cells. Additionally, inhibition of TUSC2 expression attenuated the suppressive effects of miR-663b downregulation on the proliferation, migration and invasion of CNE1 cells. To the best of our knowledge, this is the first study to demonstrate that miR-663b, which is upregulated in NPC, promotes the proliferation, migration and invasion of NPC cells, partially through the inhibition of TUSC2 expression. Therefore, it is suggested that miR-663b is a promising therapeutic target for the treatment of patients with NPC.
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Affiliation(s)
- Shaoqiang Liang
- Department of Radiotherapy, Tumor Hospital of First People's Hospital of Foshan, Foshan, Guangdong 528041, P.R. China
| | - Ning Zhang
- Department of Radiotherapy, Tumor Hospital of First People's Hospital of Foshan, Foshan, Guangdong 528041, P.R. China
| | - Yanming Deng
- Department of Radiotherapy, Tumor Hospital of First People's Hospital of Foshan, Foshan, Guangdong 528041, P.R. China
| | - Lusi Chen
- Department of Radiotherapy, Tumor Hospital of First People's Hospital of Foshan, Foshan, Guangdong 528041, P.R. China
| | - Yang Zhang
- Department of Radiotherapy, Tumor Hospital of First People's Hospital of Foshan, Foshan, Guangdong 528041, P.R. China
| | - Zhenhe Zheng
- Department of Radiotherapy, Tumor Hospital of First People's Hospital of Foshan, Foshan, Guangdong 528041, P.R. China
| | - Weijun Luo
- Department of Radiotherapy, Tumor Hospital of First People's Hospital of Foshan, Foshan, Guangdong 528041, P.R. China
| | - Zhiqian Lv
- Department of Radiotherapy, Tumor Hospital of First People's Hospital of Foshan, Foshan, Guangdong 528041, P.R. China
| | - Shaoen Li
- Department of Radiotherapy, Tumor Hospital of First People's Hospital of Foshan, Foshan, Guangdong 528041, P.R. China
| | - Tao Xu
- Department of Radiotherapy, Tumor Hospital of First People's Hospital of Foshan, Foshan, Guangdong 528041, P.R. China
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Feng S, Wang Y, Zhang R, Yang G, Liang Z, Wang Z, Zhang G. Curcumin exerts its antitumor activity through regulation of miR-7/Skp2/p21 in nasopharyngeal carcinoma cells. Onco Targets Ther 2017; 10:2377-2388. [PMID: 28496336 PMCID: PMC5422505 DOI: 10.2147/ott.s130055] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Curcumin, a natural polyphenol compound, exhibits tumor suppressive activity in a wide spectrum of cancers, including nasopharyngeal carcinoma cells. However, the exact molecular mechanisms governing this tumor suppressive activity remain elusive. Multiple studies have revealed that miRNAs are critically involved in tumorigenesis, indicating that targeting miRNAs could be a therapeutic strategy for treating human cancer. In the current study, we set out to determine whether curcumin regulates miR-7 expression in nasopharyngeal carcinoma cells. We found that curcumin inhibited cell growth, induced apoptosis, retarded cell migration and invasion, and triggered cell cycle arrest in the human nasopharyngeal carcinoma cell lines CNE1 and CNE2. Importantly, we observed that curcumin upregulated the expression of miR-7 and subsequently inhibited Skp2, a direct miR-7 target. Our results identified that upregulation of miR-7 by curcumin could benefit nasopharyngeal carcinoma patients.
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Affiliation(s)
- Shaoyan Feng
- Department of Otorhinolaryngology, Head and Neck Surgery, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou.,Department of Otolaryngology, Head and Neck Surgery, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai
| | - Yu Wang
- The Cyrus Tang Hematology Center and Collaborative Innovation Center of Hematology, Jiangsu Institute of Hematology, the First Affiliated Hospital, Soochow University, Suzhou
| | | | - Guangwei Yang
- Department of Radiation Oncology, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, People's Republic of China
| | - Zibin Liang
- Department of Radiation Oncology, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, People's Republic of China
| | - Zhiwei Wang
- The Cyrus Tang Hematology Center and Collaborative Innovation Center of Hematology, Jiangsu Institute of Hematology, the First Affiliated Hospital, Soochow University, Suzhou
| | - Gehua Zhang
- Department of Otorhinolaryngology, Head and Neck Surgery, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou
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30
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Wang Q, Zhang W, Hao S. LncRNA CCAT1 modulates the sensitivity of paclitaxel in nasopharynx cancers cells via miR-181a/CPEB2 axis. Cell Cycle 2017; 16:795-801. [PMID: 28358263 DOI: 10.1080/15384101.2017.1301334] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Recent studies reported that long non-coding RNA (lncRNA) might play critical roles in regulating chemo-resistant of multiple types of cancer. This study aimed to investigate whether long non-coding RNA CCAT1 was involved in Paclitaxel resistance in nasopharyngeal carcinoma (NPC). qRT-PCR was used for testing the expression of CCAT1, miR-181a and CPEB2 in tumor tissues and NPC cancers. NPC cells were transfected with siRNAs to suppress the mRNA level of CCAT1 in NPC cells. MTT assays and flow cytometry analysis were used to assess the sensitivity of paclitaxel in NPC cells. Luciferase reporter assays were used to examine the interaction of CCAT1 or CPEB2 to miR-181a. Our findings revealed that the upregulated CCAT1 results in significantly enhancing paclitaxel resistance in nasopharyngeal cancer cells. Bioinformatics analysis and luciferase reporter assay indicated that the upregulated CCAT1 sponges miR-181a in NPC cells. Furthermore, RNA immuno-precipitation assays showed that miR-181a could directly bind to CCAT1 mRNA in NPC cells. We restored miR-181a in NPC cells, and found restoration of miR-181a re-sensitized the NPC cells to paclitaxel in vitro. In addition, our results also showed that miR-181a was a modulator of paclitaxel sensitivity due to its regulative effect on cell apoptosis via targeting CPEB2 in NPC cells. Taken together, lncRNA CCAT1 regulates the sensitivity of paclitaxel in NPC cells via miR-181a/CPEB2 axis.
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Affiliation(s)
- Qiaosu Wang
- a The E.N.T Department , The First affiliated Hospital of Zhengzhou University , Zhengzhou , Henan , China
| | - Wenjing Zhang
- a The E.N.T Department , The First affiliated Hospital of Zhengzhou University , Zhengzhou , Henan , China
| | - Shaojuan Hao
- a The E.N.T Department , The First affiliated Hospital of Zhengzhou University , Zhengzhou , Henan , China
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31
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Lan M, Chen C, Huang Y, Tian L, Duan Z, Han F, Liao J, Deng M, Sio TT, Prayongrat A, Zheng L, Wu S, Lu T. Neoadjuvant chemotherapy followed by concurrent chemoradiotherapy versus concurrent chemoradiotherapy alone in nasopharyngeal carcinoma patients with cervical nodal necrosis. Sci Rep 2017; 7:42624. [PMID: 28211482 PMCID: PMC5314371 DOI: 10.1038/srep42624] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2016] [Accepted: 01/13/2017] [Indexed: 11/15/2022] Open
Abstract
The effectiveness of neoadjuvant chemotherapy (NACT) followed by concurrent chemoradiotherapy (CCRT) compared with CCRT alone in nasopharyngeal carcinoma (NPC) patients who presented with cervical nodal necrosis (CNN) is unknown. A total of 792 patients with stage T1-4N1-3M0 NPC and presented with CNN based on magnetic resonance imaging were retrospectively reviewed. Propensity score matching method was used to balance treatment arms for baseline characteristics. Eventually, 508 patients were propensity-matched on a 1:1 basis to create two groups (NACT + CCRT and CCRT groups). Survival rates were calculated by Kaplan-Meier method and differences were compared by using the log-rank test. The 5-year disease specific survival, disease-free survival and distant metastasis-free survival were significantly higher in NACT + CCRT group relative to the matched CCRT group (82.1% vs. 72.5%, P = 0.021; 70.3% vs. 54.1%, P < 0.001; 81.9% vs. 67.3%, P < 0.001, respectively). Although the rates of grade 3-4 leucopenia and mucositis were higher in NACT + CCRT group than CCRT group, compliance with the combined treatment was good and no significant difference was observed between two groups. NACT followed by CCRT was relatively safe and could achieve better survival than CCRT alone in NPC patients with CNN by reducing the risk of death, tumor progression and distant metastasis.
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Affiliation(s)
- Mei Lan
- State Key Laboratory of Oncology in Southern China, Sun Yat-sen University Cancer Center, Collaborative Innovation Center for Cancer Medicine, Department of Radiation Oncology, Guangzhou, China
| | - Chunyan Chen
- State Key Laboratory of Oncology in Southern China, Sun Yat-sen University Cancer Center, Collaborative Innovation Center for Cancer Medicine, Department of Radiation Oncology, Guangzhou, China
| | - Ying Huang
- State Key Laboratory of Oncology in Southern China, Sun Yat-sen University Cancer Center, Collaborative Innovation Center for Cancer Medicine, Department of Radiation Oncology, Guangzhou, China
| | - Li Tian
- State Key Laboratory of Oncology in Southern China, Sun Yat-sen University Cancer Center, Collaborative Innovation Center for Cancer Medicine, Imaging Diagnosis and Interventional Center, Guangzhou, China
| | - Zhijun Duan
- Chengdu Military General Hospital, Department of Radiation Diagnosis and Interventional Center, Chengdu, China
| | - Fei Han
- State Key Laboratory of Oncology in Southern China, Sun Yat-sen University Cancer Center, Collaborative Innovation Center for Cancer Medicine, Department of Radiation Oncology, Guangzhou, China
| | - Junfang Liao
- State Key Laboratory of Oncology in Southern China, Sun Yat-sen University Cancer Center, Collaborative Innovation Center for Cancer Medicine, Department of Radiation Oncology, Guangzhou, China
| | - Meiling Deng
- State Key Laboratory of Oncology in Southern China, Sun Yat-sen University Cancer Center, Collaborative Innovation Center for Cancer Medicine, Department of Radiation Oncology, Guangzhou, China
| | - Terence T. Sio
- Mayo Clinic, Department of Radiation Oncology, Scottsdale, Arizona
| | - Anussara Prayongrat
- Division of Radiation Oncology, Department of Radiology, Faculty of Medicine, Chulalongkorn University, King Chulalongkorn Memorial Hospital, King Bangkok, Thailand
| | - Lie Zheng
- State Key Laboratory of Oncology in Southern China, Sun Yat-sen University Cancer Center, Collaborative Innovation Center for Cancer Medicine, Imaging Diagnosis and Interventional Center, Guangzhou, China
| | - Shaoxiong Wu
- State Key Laboratory of Oncology in Southern China, Sun Yat-sen University Cancer Center, Collaborative Innovation Center for Cancer Medicine, Department of Radiation Oncology, Guangzhou, China
| | - Taixiang Lu
- State Key Laboratory of Oncology in Southern China, Sun Yat-sen University Cancer Center, Collaborative Innovation Center for Cancer Medicine, Department of Radiation Oncology, Guangzhou, China
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32
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Smith C, Lee V, Schuessler A, Beagley L, Rehan S, Tsang J, Li V, Tiu R, Smith D, Neller MA, Matthews KK, Gostick E, Price DA, Burrows J, Boyle GM, Chua D, Panizza B, Porceddu SV, Nicholls J, Kwong D, Khanna R. Pre-emptive and therapeutic adoptive immunotherapy for nasopharyngeal carcinoma: Phenotype and effector function of T cells impact on clinical response. Oncoimmunology 2017; 6:e1273311. [PMID: 28344888 PMCID: PMC5353921 DOI: 10.1080/2162402x.2016.1273311] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Revised: 12/07/2016] [Accepted: 12/13/2016] [Indexed: 01/08/2023] Open
Abstract
Adoptive T cell therapy has emerged as a powerful strategy to treat human cancers especially haematological malignancies. Extension of these therapies to solid cancers remains a significant challenge especially in the context of defining immunological correlates of clinical responses. Here we describe results from a clinical study investigating autologous Epstein-Barr virus (EBV)-specific T cells generated using a novel AdE1-LMPpoly vector to treat patients with nasopharyngeal carcinoma (NPC) either pre-emptively in at-risk patients with no or minimal residual disease (N/MRD) or therapeutically in patients with active recurrent/metastatic disease (ARMD). Tolerability, safety and efficacy, including progression-free survival (PFS) and overall survival (OS), were evaluated following adoptive T-cell immunotherapy. Twenty-nine patients, including 20 with ARMD and nine with N/MRD, successfully completed T-cell therapy. After a median follow-up of 18.5 months, the median PFS was 5.5 months (95% CI 2.1 to 9.0 months) and the median OS was 38.1 months (95% CI 17.2 months to not reached). Post-immunotherapy analyses revealed that disease stabilization in ARMD patients was significantly associated with the functional and phenotypic composition of in vitro-expanded T cell immunotherapy. These included a higher proportion of effector CD8+ T-cells and an increased number of EBV-specific T-cells with broader antigen specificity. These observations indicate that adoptive immunotherapy with AdE1-LMPpoly-expanded T cells stabilizes relapsed, refractory NPC without significant toxicity. Promising clinical outcomes in N/MRD patients further suggest a potential role for this approach as a consolidation treatment following first-line chemotherapy.
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Affiliation(s)
- Corey Smith
- QIMR Berghofer Centre for Immunotherapy and Vaccine Development and Tumour Immunology Laboratory, Department of Immunology, QIMR Berghofer Medical Research Institute , Brisbane, Queensland, Australia
| | - Victor Lee
- Department of Clinical Oncology, Queen Mary Hospital, The University of Hong Kong , Hong Kong
| | - Andrea Schuessler
- QIMR Berghofer Centre for Immunotherapy and Vaccine Development and Tumour Immunology Laboratory, Department of Immunology, QIMR Berghofer Medical Research Institute , Brisbane, Queensland, Australia
| | - Leone Beagley
- QIMR Berghofer Centre for Immunotherapy and Vaccine Development and Tumour Immunology Laboratory, Department of Immunology, QIMR Berghofer Medical Research Institute , Brisbane, Queensland, Australia
| | - Sweera Rehan
- QIMR Berghofer Centre for Immunotherapy and Vaccine Development and Tumour Immunology Laboratory, Department of Immunology, QIMR Berghofer Medical Research Institute , Brisbane, Queensland, Australia
| | - Janice Tsang
- Department of Clinical Oncology, Queen Mary Hospital, The University of Hong Kong , Hong Kong
| | - Vivian Li
- Department of Clinical Oncology, Queen Mary Hospital, The University of Hong Kong , Hong Kong
| | - Randal Tiu
- Department of Clinical Oncology, Queen Mary Hospital, The University of Hong Kong , Hong Kong
| | - David Smith
- QIMR Berghofer Centre for Immunotherapy and Vaccine Development and Tumour Immunology Laboratory, Department of Immunology, QIMR Berghofer Medical Research Institute , Brisbane, Queensland, Australia
| | - Michelle A Neller
- QIMR Berghofer Centre for Immunotherapy and Vaccine Development and Tumour Immunology Laboratory, Department of Immunology, QIMR Berghofer Medical Research Institute , Brisbane, Queensland, Australia
| | - Katherine K Matthews
- QIMR Berghofer Centre for Immunotherapy and Vaccine Development and Tumour Immunology Laboratory, Department of Immunology, QIMR Berghofer Medical Research Institute , Brisbane, Queensland, Australia
| | - Emma Gostick
- Institute of Infection and Immunity, Cardiff University School of Medicine , Cardiff, UK
| | - David A Price
- Institute of Infection and Immunity, Cardiff University School of Medicine, Cardiff, UK; Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Jacqueline Burrows
- QIMR Berghofer Centre for Immunotherapy and Vaccine Development and Tumour Immunology Laboratory, Department of Immunology, QIMR Berghofer Medical Research Institute , Brisbane, Queensland, Australia
| | - Glen M Boyle
- QIMR Berghofer Centre for Immunotherapy and Vaccine Development and Tumour Immunology Laboratory, Department of Immunology, QIMR Berghofer Medical Research Institute , Brisbane, Queensland, Australia
| | - Daniel Chua
- Comprehensive Oncology Centre, Hong Kong Sanatorium Hospital , Hong Kong
| | - Benedict Panizza
- Department of Otolaryngology-Head and Neck Surgery, The Princess Alexandra Hospital, University of Queensland , Brisbane, Queensland, Australia
| | - Sandro V Porceddu
- Department of Otolaryngology-Head and Neck Surgery, The Princess Alexandra Hospital, University of Queensland , Brisbane, Queensland, Australia
| | - John Nicholls
- Department of Pathology, Queen Mary Hospital, The University of Hong Kong , Hong Kong
| | - Dora Kwong
- Department of Clinical Oncology, Queen Mary Hospital, The University of Hong Kong , Hong Kong
| | - Rajiv Khanna
- QIMR Berghofer Centre for Immunotherapy and Vaccine Development and Tumour Immunology Laboratory, Department of Immunology, QIMR Berghofer Medical Research Institute , Brisbane, Queensland, Australia
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Xiang G, Li X, Cao L, Zhu C, Dai Z, Pan S, Lin S. Frequent overexpression of PDK1 in primary nasopharyngeal carcinoma is associated with poor prognosis. Pathol Res Pract 2016; 212:1102-1107. [DOI: 10.1016/j.prp.2016.10.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Revised: 08/03/2016] [Accepted: 10/18/2016] [Indexed: 01/20/2023]
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Increased Serum Level of MicroRNA-663 Is Correlated with Poor Prognosis of Patients with Nasopharyngeal Carcinoma. DISEASE MARKERS 2016; 2016:7648215. [PMID: 27667893 PMCID: PMC5030438 DOI: 10.1155/2016/7648215] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Revised: 07/31/2016] [Accepted: 08/10/2016] [Indexed: 02/06/2023]
Abstract
MicroRNAs (miRs) play crucial roles in the carcinogenesis and malignant progression of human cancers including nasopharyngeal carcinoma (NPC). In this study, we aimed to investigate the association of serum miR-663 levels with the clinical factors and prognosis of NPC patients. Real-time PCR was performed to examine the amount of miR-663 in serum in NPC patients and healthy controls. Our data showed that the amount of miR-663 in serum was significantly higher in NPC patients than in healthy controls. Moreover, the serum levels of miR-663 were significantly correlated with the grade, lymph node metastasis, and clinical stage of NPC. Furthermore, higher serum miR-663 levels were closely associated with worse 5-year overall survival (OS) and relapse-free survival (RFS) of patients with NPC, and the serum level of miR-663 was found to be an independent predicator for the prognosis of NPC. In addition, after receiving chemoradiotherapy, the serum levels of miR-663 were significantly reduced in NPC patients. In summary, miR-663 was upregulated in the serum of NPC patients, which was downregulated after chemoradiotherapy, and its increased levels were closely associated with malignant progression and poor prognosis in NPC patients. Therefore, the amount of miR-663 in serum may become a potential predicator for the clinical outcome of NPC patients.
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