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Zou WQ, Luo WJ, Feng YF, Liu F, Liang SB, Fang XL, Liang YL, Liu N, Wang YQ, Mao YP. Expression Profiles and Prognostic Value of Multiple Inhibitory Checkpoints in Head and Neck Lymphoepithelioma-Like Carcinoma. Front Immunol 2022; 13:818411. [PMID: 35140722 PMCID: PMC8818848 DOI: 10.3389/fimmu.2022.818411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Accepted: 01/04/2022] [Indexed: 11/13/2022] Open
Abstract
BackgroundInhibitory checkpoints are promising antitumor targets and predictive biomarkers in a variety of cancers. We aimed to identify the expression levels and prognostic value of multiple inhibitory checkpoints supported by preclinical and clinical evidence in head and neck lymphoepithelioma-like carcinoma (HNLELC).MethodsThe expression of seven inhibitory checkpoints were evaluated in the tumor nest (TN) and tumor stroma (TS) of 102 HNLELC specimens using immunohistochemistry and digital pathology, and an inhibitory checkpoint-based signature (ICS) was subsequently constructed using the LASSO Cox regression model.ResultsPD-L1, B7H3, and IDO-1 were mostly expressed in the TN, with median H-score of TN vs TS: 63.6 vs 14.6; 8.1 vs 1.0; 61.5 vs 34.7 (all P < 0.001), whereas PD-1, TIM-3, LAG-3, and VISTA were mainly observed in the TS, with median H-score of TN vs TS: 0.2 vs 12.4, 3.4 vs 7.1, 6.2 vs 11.9, 16.4 vs 47.2 (all P < 0.001), respectively. The most common simultaneously expressed combinations consisted of PD-L1 + B7H3 + IDO-1 + TIM-3 + LAG-3 + VISTA and B7H3 + IDO-1 + TIM-3 + LAG-3 in the TN (both occurring in 8.8% of patients) and PD-L1 + B7H3 + IDO-1 in the TS (4.9%). In addition, high-ICS patients had shorter 5-year disease-free (40.6% vs 81.7%; P < 0.001), regional recurrence-free (63.5% vs 88.2%; P = 0.003), and overall survival (73.5% vs 92.9%; P = 0.006) than low-ICS patients. Multivariate analysis revealed that ICS represented an independent predictor, which could significantly complement the predictive performance of TNM stage for 3-year (AUC 0.724 vs 0.619, P = 0.014), 5-year (AUC 0.727 vs 0.640, P = 0.056), and 10-year disease-free survival (AUC 0.815 vs 0.709, P = 0.023).ConclusionsThe expression of inhibitory checkpoints and ICS classifier may increase the prognostic value of the TNM staging system and guide the rational design of personalized inhibitory checkpoint blockade therapy in HNLELC.
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Affiliation(s)
- Wen-Qing Zou
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, China
| | - Wei-Jie Luo
- Department of Medical Oncology, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, China
| | - Yan-Fen Feng
- Department of Pathology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangzhou, China
| | - Fang Liu
- Department of Pathology, The First People’s Hospital of Foshan, Foshan, China
| | - Shao-Bo Liang
- Department of Radiation Oncology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Xue-Liang Fang
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, China
| | - Ye-Lin Liang
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, China
| | - Na Liu
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, China
- *Correspondence: Yan-Ping Mao, ; Ya-Qin Wang, ; Na Liu,
| | - Ya-Qin Wang
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, China
- *Correspondence: Yan-Ping Mao, ; Ya-Qin Wang, ; Na Liu,
| | - Yan-Ping Mao
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, China
- *Correspondence: Yan-Ping Mao, ; Ya-Qin Wang, ; Na Liu,
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Luo WJ, He SW, Zou WQ, Zhao Y, He QM, Yang XJ, Guo R, Mao YP. Epstein-Barr virus microRNA BART10-3p promotes dedifferentiation and proliferation of nasopharyngeal carcinoma by targeting ALK7. Exp Biol Med (Maywood) 2021; 246:2618-2629. [PMID: 34424090 DOI: 10.1177/15353702211037261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Non-keratinizing nasopharyngeal carcinoma, the major subtype of nasopharyngeal carcinoma, is characterized by low differentiation and a close relation to Epstein-Barr virus infection, which indicates a link between Epstein-Barr virus oncogenesis and loss of differentiation, and raises our interest in investigating the involvement of Epstein-Barr virus in nasopharyngeal carcinoma dedifferentiation. Our previous study showed abundant expression of an Epstein-Barr virus-encoded microRNA, BART10-3p, in nasopharyngeal carcinoma tissues, but the association between BART10-3p and nasopharyngeal carcinoma differentiation remains unknown. Here, we examined the expression and prognostic value of BART10-3p, and undertook bioinformatics analysis and functional assays to investigate the influence of BART10-3p on nasopharyngeal carcinoma differentiation and proliferation and the underpinning mechanism. Microarray analysis identified BART10-3p as the most significantly upregulated Epstein-Barr virus-encoded microRNA in nasopharyngeal carcinoma tissues and the upregulation was confirmed in two public datasets. The expression of BART10-3p was an independent unfavorable prognosticator in nasopharyngeal carcinoma and its integration with the clinical stage showed improved prognosis predictive performance. Bioinformatics analysis suggested a potential role of BART10-3p in tumor differentiation and progression. Functional assays demonstrated that BART10-3p could promote nasopharyngeal carcinoma cell dedifferentiation, epithelial-mesenchymal transition, and proliferation in vitro, and tumorigenicity in vivo. Mechanistically, BART10-3p directly targeted the 3'UTR of ALK7 and suppressed its expression. Reconstitution of ALK7 rescued BART10-3p-induced malignant phenotypes. Overall, our study demonstrates that BART10-3p promotes dedifferentiation and proliferation of nasopharyngeal carcinoma by targeting ALK7, suggesting a promising therapeutic opportunity to reverse the malignant phenotypes of nasopharyngeal carcinoma.
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Affiliation(s)
- Wei-Jie Luo
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Shi-Wei He
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Wen-Qing Zou
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Yin Zhao
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Qing-Mei He
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Xiao-Jing Yang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Rui Guo
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Yan-Ping Mao
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
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Sheng XL, Li HP, Liu QX, Rong WN, Du WZ, Ma L, Yan GH, Ma RQ, Zhang JL, Xu HF, Zou WQ, Bi XJ. Prevalence and associated factors of corneal blindness in Ningxia in northwest China. Int J Ophthalmol 2014; 7:557-62. [PMID: 24967208 DOI: 10.3980/j.issn.2222-3959.2014.03.30] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2014] [Accepted: 03/01/2014] [Indexed: 11/02/2022] Open
Abstract
AIM To describe the prevalence and demographic characteristics of corneal blindness in an urban and rural region of Ningxia, located in the northwest part of China. METHODS A stratified, randomized sampling procedure was employed in the study, including urban and rural area of all age group. Visual acuity, anterior segment and ocular fundus were checked. Related factor of corneal disease, including age, gender, education status, ethnic group, location and occupation, were identified according to uniform customized protocol. An eye was defined to be corneal blindness if the visual acuity was <20/400 due to a corneal disease. RESULTS Three thousand individuals (1290 from urban area and 1710 from rural area) participated in the investigation, with a response rate of 80.380%. The prevalence of corneal blindness was 0.023% in both eyes and 0.733% in at least one eye. The blindness in at least one eye with varied causes was present in 106 participants (3.533%) and in bilateral eyes in 34 participants (1.133%). The corneal diseases accounted for 20.754% of blindness in at least one eye and 20.588% of bilateral blindness. The prevalence of corneal disease was higher in older and Han ethnic group, especially those who occupied in agriculture and outdoor work. People with corneal blindness were more likely to be older and lower education. Rural population were more likely to suffer from bilateral corneal blindness than the urban population in ≥59-year group (χ (2)=6.716, P=0.019). Infectious, trauma and immune corneal disease were the three leading causes of corneal disease. Trauma corneal disease was more likely leading to blindness in one eye. However, infectious and immune corneal diseases make more contribution to the bilateral corneal blindness. CONCLUSION Corneal blindness is a significant burden of in Ningxia population, encompassing a variety of corneal infections and trauma; the majority of those were avoidable. Health promotion strategies and good hygienic conditions have to be developed.
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Affiliation(s)
- Xun-Lun Sheng
- Ningxia Eye Hospital, Ningxia People's Hospital, Yinchuan 750011, Ningxia Hui Autonomous Region, China
| | - Hui-Ping Li
- Ningxia Eye Hospital, Ningxia People's Hospital, Yinchuan 750011, Ningxia Hui Autonomous Region, China
| | - Qing-Xia Liu
- Ningxia Eye Hospital, Ningxia People's Hospital, Yinchuan 750011, Ningxia Hui Autonomous Region, China
| | - Wei-Ning Rong
- Ningxia Eye Hospital, Ningxia People's Hospital, Yinchuan 750011, Ningxia Hui Autonomous Region, China
| | - Wen-Zhang Du
- Department of Ophthalmology, Tongxin Hospital, Tongxin 751300, Ningxia Hui Autonomous Region, China
| | - Li Ma
- Department of Ophthalmology, Ningxia Medical University, Yinchuan 750001, Ningxia Hui Autonomous Region, China
| | - Guang-Hui Yan
- Department of Ophthalmology, Ningxia Medical University, Yinchuan 750001, Ningxia Hui Autonomous Region, China
| | - Run-Qing Ma
- Department of Ophthalmology, Ningxia Medical University, Yinchuan 750001, Ningxia Hui Autonomous Region, China
| | - Jian-Ling Zhang
- Ningxia Eye Hospital, Ningxia People's Hospital, Yinchuan 750011, Ningxia Hui Autonomous Region, China
| | - Hui-Fang Xu
- Ningxia Eye Hospital, Ningxia People's Hospital, Yinchuan 750011, Ningxia Hui Autonomous Region, China
| | - Wen-Qing Zou
- Ningxia Eye Hospital, Ningxia People's Hospital, Yinchuan 750011, Ningxia Hui Autonomous Region, China
| | - Xiao-Jun Bi
- Ningxia Eye Hospital, Ningxia People's Hospital, Yinchuan 750011, Ningxia Hui Autonomous Region, China
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Yuan J, Dong Z, Guo JP, McGeehan J, Xiao X, Wang J, Cali I, McGeer PL, Cashman NR, Bessen R, Surewicz WK, Kneale G, Petersen RB, Gambetti P, Zou WQ. Accessibility of a critical prion protein region involved in strain recognition and its implications for the early detection of prions. Cell Mol Life Sci 2008; 65:631-43. [PMID: 18193391 PMCID: PMC7079802 DOI: 10.1007/s00018-007-7478-z] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Human prion diseases are characterized by the accumulation in the brain of proteinase K (PK)-resistant prion protein designated PrP27-30 detectable by the 3F4 antibody against human PrP109-112. We recently identified a new PK-resistant PrP species, designated PrP*20, in uninfected human and animal brains. It was preferentially detected with the 1E4 antibody against human PrP 97-108 but not with the anti-PrP 3F4 antibody, although the 3F4 epitope is adjacent to the 1E4 epitope in the PrP*20 molecule. The present study reveals that removal of the N-terminal amino acids up to residue 91 significantly increases accessibility of the 1E4 antibody to PrP of brains and cultured cells. In contrast to cells expressing wild-type PrP, cells expressing pathogenic mutant PrP accumulate not only PrP*20 but also a small amount of 3F4-detected PK-resistant PrP27-30. Remarkably, during the course of human prion disease, a transition from an increase in 1E4-detected PrP*20 to the occurrence of the 3F4-detected PrP27-30 was observed. Our study suggests that an increase in the level of PrP*20 characterizes the early stages of prion diseases.
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Affiliation(s)
- J Yuan
- Department of Pathology and National Prion Disease Pathology Surveillance Center, Case Western Reserve University, 2085 Adelbert Road, Cleveland, OH 44106, USA
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Lu ZL, Zou WQ, Lv LY, Liu XC, Li SD, Zhu JM, Zhang FM, Du YW. Large Low-Field Magnetoresistance in Nanocrystalline Magnetite Prepared by Sol−Gel Method. J Phys Chem B 2006; 110:23817-20. [PMID: 17125346 DOI: 10.1021/jp0608325] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Nanocrystalline magnetite Fe3O4 samples with a grain size of about 40 nm have been synthesized by an optimized sol-gel method. The single phase of spinel magnetite was confirmed by both X-ray diffraction and transmission electron microscopy. It has been found that the magnetoresistance of the samples at low field (LFMR) is relatively large, and with the decrease of temperature its value at a field of 0.5 T changes dramatically from -2.5% at 300 K to -17.0% at 55 K. With the further decrease of temperature a sharp drop occurs for the magnitude of the magnetoresistance (MR), regarded as a spin (cluster) glass transition in the surface region of the grains that can be confirmed by the zero-field-cooled and field-cooled magnetization and ac susceptibility measurement. The mechanism of the magnetic and transport properties was discussed.
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Affiliation(s)
- Z L Lu
- Jiangsu Provincial Laboratory for Nanotechnology, National Laboratory of Solid State Microstructure and Department of Physics, Nanjing University, Nanjing 210093, China
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Abstract
Amyloid proteins and peptides comprise a diverse group of molecules that vary both in size and amino-acid sequence, yet assemble into amyloid fibrils that have a common core structure. Kinetic studies of amyloid fibrillogenesis have revealed that certain amyloid proteins form oligomeric intermediates prior to fibril formation. We have investigated fibril formation with a peptide corresponding to residues 195-213 of the human prion protein. Through a combination of kinetic and equilibrium studies, we have found that the fibrillogenesis of this peptide proceeds as an all-or-none reaction where oligomeric intermediates are not stably populated. This variation in whether oligomeric intermediates are stably populated during fibril formation indicates that amyloid proteins assemble into a common fibrillar structure; however, they do so through different pathways.
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Affiliation(s)
- W Q Zou
- Centre for Research in Neurodegenerative Diseases, University of Toronto, Ontario, Canada
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Lin ST, Zou WQ, Chen J, Li P. [Stress and dietary salt intake in the pathogenesis of hypertension: role of the renal and sympathetic nervous system]. Sheng Li Xue Bao 1999; 51:7-13. [PMID: 11972168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
Using the methods of electrophysiology, biochemistry, radioimmunoassay, and electron microscopy, changes of sympathetic nervous system and renal function in hypertensive SD rats induced by stress and high-salt intake were investigated. The results are as follows: (1) Renal plasma flow (RPF) and urinary sodium excretion obviously increased in salt-loading rats. Stress could result in marked reduction of RPF. (2) Electron micrography showed a dramatic increase in cell and mitochondrial volume in the proximal and distal convoluted tubules of high-salt diet rats. After stress of two weeks, the cells of the tubule became atrophic and mitochondrial volume decreased. (3) The same recovery from the declining renal cortical Na-K-ATPase activity in high-salt diet rats could be observed by maintained stress. (4) Low frequency (0.2-0.9 Hz) of BP variability was higher in stress rats as compared to control. (5) Both plasma renin activity (PRA) and angiotensin II (ANG II) levels increased in stress rats, but the decrease in high-salt diet rats gradually reached the high level of the former in two weeks. (6) Increase of BP, fall in RPF, or augment in PRA and ANG II were not observed in stress rats subjected to bilateral renal denervation. The above results indicate that the renal mechanism mediated by increased renal sympathetic nervous system plays an important role in stress- and salt-induced hypertension pathogenesis.
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Affiliation(s)
- S T Lin
- Department of Nephrology, Huashan Hospital, Shanghai Medical University, Shanghai 200040
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