1
|
Du L, Lei Q, Zhou Q, Du Y, Lin X, Guo J, Li C, Luo Q, Fan C, Guo Q. Effect of MTA3 Inhibition of Glutamine Synthetase-Mediated Glutaminolysis on Radiosensitivity of Patients with Esophageal Cancer. Int J Radiat Oncol Biol Phys 2023; 117:e227-e228. [PMID: 37784918 DOI: 10.1016/j.ijrobp.2023.06.1138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Metastasis-associated protein 3 (MTA3) can serve as a tumor suppressor in many cancer types. However, the role of MTA3 in radiosensitivity of patients with esophageal squamous cell cancer (ESCC) remains unclear. We thus investigated the function of MTA3 in radiosensitivity for ESCC, one of the most common digestive cancers. MATERIALS/METHODS The colony formation assay and nude mice xenograft tumor assay were performed to investigate the effect of MTA3 on radiosensitivity in ESCC. Glutamine consumption assay kit and glutamate production assay kit were used to assess the glutaminolysis. Glutaminase (GLS) Activity Assay Kit and Glutamine Synthetase (GS) Activity Assay Kit were used to analyze the activity of specific metabolic enzymes dominate glutaminolysis. The regulatory mechanism of glutaminolysis by MTA3 was confirmed using Chromatin immunoprecipitation assay and Gaussia luciferase assay. The expression levels of MTA3 and GS in ESCC primary tissues were evaluated using immunohistochemistry. Survival curves were plotted with the Kaplan-Meier method and compared by log-rank test. RESULTS The colony formation assay showed that MTA3 depletion and overexpression caused significantly higher and lower clonogenic survival after different doses of irradiation (IR), respectively. When these cells were subcutaneously injected into nude mice, the tumors derived from the cells with MTA3 overexpression and MTA3 knockdown were significantly smaller and bigger after IR, respectively. These findings suggest that MTA3 can enhance radiosensitivity in vitro and in vivo. Meanwhile, overexpressed and knockdown MTA3 can repress and expedite glutamine consumption and glutamate production uniformly, respectively. To determine how MTA3 acts on glutaminolysis, the activity of two specific metabolic enzymes dominate this metabolism, GS and GLS, were evaluated. It found that overexpressed and knockdown MTA3 can restrain and enhance the activity of GS, respectively, but have less effect on GLS. Moreover, the decreased radiosensitivity mediated by MTA3 knockdown is significantly increased when treated with GS inhibitor, suggesting that GS plays a crucial role in MTA3-mediated radiosensitivity enhancement. Mechanistically, Chromatin immunoprecipitation assay and Gaussia luciferase assay showed that MTA3 was recruited to the promoter of GS and suppressed GS transcription. However, knockdown of GATA3 abolished MTA3's repressive effect on GS and inhibited the MTA3's occupation on the promoter region of GS. These results collectively demonstrated that, in ESCC cells, MTA3 is recruited by GATA3 to inhibit GS expression, then ultimately represses glutaminolysis and enhances radiosensitivity. Finally, we showed that the ESCC patients in the MTA3low/GShigh group is significantly associated with shorter overall survival. CONCLUSION MTA3 is capable of enhancing radiosensitivity through downregulating GS and MTA3low/GShigh might be a potential prognostic factor for ESCC patients.
Collapse
Affiliation(s)
- L Du
- Department of Radiation Oncology, Chongqing University Cancer Hospital, Chongqing, China
| | - Q Lei
- Department of Radiation Oncology, Chongqing University Cancer Hospital, Chongqing, China
| | - Q Zhou
- Department of Radiation Oncology, Chongqing University Cancer Hospital, Chongqing, China
| | - Y Du
- Department of Radiation Oncology, Chongqing University Cancer Hospital, Chongqing, China
| | - X Lin
- Department of Radiation Oncology, Chongqing University Cancer Hospital, Chongqing, China
| | - J Guo
- Department of Radiation Oncology, Chongqing University Cancer Hospital, Chongqing, China
| | - C Li
- Department of Radiation Oncology, Chongqing University Cancer Hospital, Chongqing, China
| | - Q Luo
- Department of Radiation Oncology, Chongqing University Cancer Hospital, Chongqing, China
| | - C Fan
- Department of Radiation Oncology, Chongqing University Cancer Hospital, Chongqing, China
| | - Q Guo
- Department of Radiation Oncology, Chongqing University Cancer Hospital, Chongqing, China
| |
Collapse
|
2
|
Chen J, Yang D, Lei Q, Long Y. Real-world evaluation of the effectiveness and predictive factors of anti-PD-1/PD-L1 inhibitors as the first-line therapy for metastatic non-small cell lung cancer. Asian J Surg 2023; 46:4103-4104. [PMID: 37164823 DOI: 10.1016/j.asjsur.2023.04.080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 04/18/2023] [Indexed: 05/12/2023] Open
Affiliation(s)
- Jing Chen
- Department of Radiation Oncology Center, Chongqing University Cancer Hospital, Chongqing Cancer Institute, Chongqing Cancer Hospital, Chongqing, 400030, China
| | - Dingyi Yang
- Department of Radiation Oncology Center, Chongqing University Cancer Hospital, Chongqing Cancer Institute, Chongqing Cancer Hospital, Chongqing, 400030, China
| | - Qianqian Lei
- Department of Radiation Oncology Center, Chongqing University Cancer Hospital, Chongqing Cancer Institute, Chongqing Cancer Hospital, Chongqing, 400030, China
| | - Yanyan Long
- Department of Radiation Oncology Center, Chongqing University Cancer Hospital, Chongqing Cancer Institute, Chongqing Cancer Hospital, Chongqing, 400030, China.
| |
Collapse
|
3
|
Ma D, Shi H, Tan C, Zou W, Sun F, Wang K, Lei Q, Zheng X, Zhong Y, Tu C, Chen M, Huang Y, Wang Z, Wu J, Liang Y, Liu J. Quantitative CT Metrics for the Prediction of Therapeutic Effect in Asthma. J Clin Med 2023; 12:639. [PMID: 36675568 PMCID: PMC9861330 DOI: 10.3390/jcm12020639] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 01/03/2023] [Accepted: 01/09/2023] [Indexed: 01/15/2023] Open
Abstract
Background: Few studies have explored the correlation between asthma medication and features on HRCT images. We aim to analyse the differences and temporal changes of lung function and airway resistance in asthma with diverse HRCT phenotypes in a short period after inhalation of budesonide/formoterol. Method: This observational study recruited 55 adult patients with varying severities of asthma. We performed detailed airway metrics measurements of chest CT scans, such as airway wall thickness (WT), wall area percentage (WA%), wall thickness percentage (T/OR), and airways with an inner perimeter of 10 mm (Pi10). The effect of lung structural features on asthma medication response was explored according to the WA% and T/OR twelve hours post-drug administration. Using multivariable regression models, we then assessed the influence of WA% on lung function. Results: WA% (p < 0.001) and T/OR (p < 0.001) significantly increased in asthma than in healthy control subjects. Compared to mild asthma, airway walls were further thickened (WA%, p = 0.023; T/OR: p = 0.029) and associated with lumen narrowing (Pi10, p = 0.055) in moderate to severe asthma. WA% and T/OR correlated well with lung function (FEV1, FVC, MMEF, and PEF) and airway resistance (R5, R20, Rp, and Fres). Regression analysis showed that MEF25 decreased with increasing age and WA% (R2 = 0.58, p < 0.001). Patients with thickened airway walls experienced a maximal increase in FVC, FEV1, and PEF at 2 h (p < 0.001) and a maximal decrease of R5, Z5, and Rp at 2 h (p < 0.001) in those with a thickened airway pattern. Conclusions: Asthma patients with different bronchial wall thicknesses exhibited variable lung function changes. Specifically, patients with thick airway wall patterns were more sensitive to inhaled budesonide in the short term.
Collapse
Affiliation(s)
- Donghai Ma
- Department of Respiratory and Critical Care Medicine, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai 519000, China
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital Sun Yat-sen University, Zhuhai 519000, China
| | - Honglei Shi
- Department of Respiratory and Critical Care Medicine, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai 519000, China
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital Sun Yat-sen University, Zhuhai 519000, China
| | - Cuiyan Tan
- Department of Respiratory and Critical Care Medicine, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai 519000, China
| | - Wei Zou
- Department of Respiratory and Critical Care Medicine, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai 519000, China
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital Sun Yat-sen University, Zhuhai 519000, China
| | - Fengfei Sun
- Department of Respiratory and Critical Care Medicine, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai 519000, China
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital Sun Yat-sen University, Zhuhai 519000, China
| | - Kongqiu Wang
- Department of Respiratory and Critical Care Medicine, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai 519000, China
| | - Qianqian Lei
- Department of Respiratory and Critical Care Medicine, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai 519000, China
| | - Xiaobin Zheng
- Department of Respiratory and Critical Care Medicine, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai 519000, China
| | - Yuanyuan Zhong
- Department of Respiratory and Critical Care Medicine, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai 519000, China
| | - Changli Tu
- Department of Respiratory and Critical Care Medicine, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai 519000, China
| | - Meizhu Chen
- Department of Respiratory and Critical Care Medicine, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai 519000, China
| | - Yiying Huang
- Department of Respiratory and Critical Care Medicine, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai 519000, China
| | - Zhenguo Wang
- Department of Respiratory and Critical Care Medicine, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai 519000, China
| | - Jian Wu
- Department of Respiratory and Critical Care Medicine, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai 519000, China
| | - Yingjian Liang
- Department of Respiratory and Critical Care Medicine, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai 519000, China
| | - Jing Liu
- Department of Respiratory and Critical Care Medicine, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai 519000, China
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital Sun Yat-sen University, Zhuhai 519000, China
| |
Collapse
|
4
|
Lei Q, Xiao Z, Wu W, Liang X, Zhao Q, Ding D, Deng W. The Joint Effect of Body Mass Index and Serum Lipid Levels on Incident Dementia among Community-Dwelling Older Adults. J Nutr Health Aging 2023; 27:1118-1126. [PMID: 37997734 DOI: 10.1007/s12603-023-2027-5] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Accepted: 10/11/2023] [Indexed: 11/25/2023]
Abstract
OBJECTIVES This study aimed to explore the joint effect of body mass index (BMI) and serum lipids levels on incident dementia. METHODS We prospectively followed up with 1,627 dementia-free community residents aged ≥60 for 5.7 years on average. At baseline, weight, and height were measured, and total cholesterol (TC), triglyceride (TG), low-density lipoprotein cholesterol (LDL-C), and high-density lipoprotein cholesterol (HDL-C) were detected in serum. Demographic characteristics were collected through questionnaires. Dementia was based on consensus diagnosis of neurologists and neuropsychologists using DSM-IV criteria. Additive Cox proportional model was used to assess the exposure-response relationship between BMI and serum lipid levels and dementia risk. Interactions and further classifications of BMI and serum lipid levels were further presented by bivariate surface models and decision-tree models. RESULTS The joint effects of TC with BMI, TG with BMI, and LDL-C with BMI on the risk of incident dementia shared a similar pattern, different from their independent exposure-response curves. The joint effect of HDL-C with BMI showed an S-surface but without statistical significance. Participants with TC<5.4 mmol/L and BMI<21 kg/m2 (Hazard Ratio(HR) 1.93, 95% Confidence Interval (CI) 1.05-3.53), TC<5.4 mmol/L and BMI≥21 kg/m2 (HR 1.73, 95% CI 1.09-2.72), and TC≥5.4 mmol/L and BMI<21 kg/m2 (HR 4.02, 95% CI 2.10-7.71) were identified to have the increased risk of incident dementia compared to those with TC≥5.4 mmol/L and BMI≥21 kg/m2. Participants with TG<1.7 mmol/L and BMI<21 kg/m2 had an increased risk of incident dementia compared to those with TG≥1.7 mmol/L and BMI≥21 kg/m2 (HR 1.98, 95%CI 1.17-3.3). Participants with LDL-C≥3.3 mmol/L and BMI<21 kg/m2 were identified to have an increased risk of incident dementia compared to those with LDL-C≥3.3 mmol/L and BMI≥21 kg/m2 (HR 3.33, 95%CI 1.64-6.78). CONCLUSIONS Our study showed that low BMI combined with low or high levels of serum lipids may increase the risk of dementia among older adults. This finding suggests the potential impacts of these two metabolic indexes on the risk of dementia.
Collapse
Affiliation(s)
- Q Lei
- Wei Deng, 138 Yixueyuan Rd., Department of Biostatistics, School of Public Health, Fudan University, Shanghai 200032, China, ; Ding Ding, 12 Wulumuqi Zhong Rd., Institute of Neurology, Huashan Hospital, Fudan University, Shanghai 200040, China,
| | | | | | | | | | | | | |
Collapse
|
5
|
Xie L, Li C, Lei Q, Fan C, Du Y, Guo J, Weng K, Guo Q. Preliminary Evaluation of Postoperative Radiotherapy between Small T-Shaped Field and All Regional Lymph Nodes Field in Thoracic Esophageal Squamous Cell Carcinoma. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
6
|
Lei Q, Wang Y, Sui J, Luo Q, Jin F, Long B, Shu X, Li S, Huang L, Zhong M, Mao K. CAMRESBRT: Randomized Phase II Trial of Camrelizumab with Stereotactic Body Radiotherapy vs. Camrelizumab Alone in Recurrent or Metastatic Head and Neck Squamous Cell Carcinoma. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
7
|
Tu H, Wang Y, Sui J, Li D, Shi X, Li G, Luo Q, Lei Q, Wang C, Wang J, Yan J, Liu M, Lu H. Patient-Derived Oral Squamous Cell Carcinoma Organoids for Predicting Tumoral Radiosensitivity. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
|
8
|
Liu W, Liu J, Zhou Y, Cao D, Lei Q, Han H, Wang J, Li D, Gao J, Li H, Li F. Genome-Wide Association Study of Abdominal Fat in Wenshang Barred Chicken Based on the Slaf-Seq Technology. Braz J Poult Sci 2022. [DOI: 10.1590/1806-9061-2021-1612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- W Liu
- Shandong Academy of Agricultural Sciences, P. R. China; Poultry Breeding Engineering Technology Center of Shandong Province, China
| | - J Liu
- Shandong Academy of Agricultural Sciences, P. R. China; Poultry Breeding Engineering Technology Center of Shandong Province, China
| | - Y Zhou
- Shandong Academy of Agricultural Sciences, P. R. China; Poultry Breeding Engineering Technology Center of Shandong Province, China
| | - D Cao
- Shandong Academy of Agricultural Sciences, P. R. China; Poultry Breeding Engineering Technology Center of Shandong Province, China
| | - Q Lei
- Shandong Academy of Agricultural Sciences, P. R. China; Poultry Breeding Engineering Technology Center of Shandong Province, China
| | - H Han
- Shandong Academy of Agricultural Sciences, P. R. China; Poultry Breeding Engineering Technology Center of Shandong Province, China
| | - J Wang
- Shandong Academy of Agricultural Sciences, P. R. China; Poultry Breeding Engineering Technology Center of Shandong Province, China
| | - D Li
- Shandong Academy of Agricultural Sciences, P. R. China; Poultry Breeding Engineering Technology Center of Shandong Province, China
| | - J Gao
- Shandong Academy of Agricultural Sciences, P. R. China; Poultry Breeding Engineering Technology Center of Shandong Province, China
| | - H Li
- Shandong Academy of Agricultural Sciences, P. R. China
| | - F Li
- Shandong Academy of Agricultural Sciences, P. R. China; Poultry Breeding Engineering Technology Center of Shandong Province, China
| |
Collapse
|
9
|
Abstract
INTRODUCTION Radiotherapy is one of the most effective ways to treat lung cancer. Accurately delineating the gross target volume is a key step in the radiotherapy process. In current clinical practice, the target area is still delineated manually by radiologists, which is time-consuming and laborious. However, these problems can be better solved by deep learning-assisted automatic segmentation methods. METHODS In this paper, a 3D CNN model named 3D ResSE-Unet is proposed for gross tumor volume segmentation for stage III NSCLC radiotherapy. This model is based on 3D Unet and combines residual connection and channel attention mechanisms. Three-dimensional convolution operation and encoding-decoding structure are used to mine three-dimensional spatial information of tumors from computed tomography data. Inspired by ResNet and SE-Net, residual connection and channel attention mechanisms are used to improve segmentation performance. A total of 214 patients with stage III NSCLC were collected selectively and 148 cases were randomly selected as the training set, 30 cases as the validation set, and 36 cases as the testing set. The segmentation performance of models was evaluated by the testing set. In addition, the segmentation results of different depths of 3D Unet were analyzed. And the performance of 3D ResSE-Unet was compared with 3D Unet, 3D Res-Unet, and 3D SE-Unet. RESULTS Compared with other depths, 3D Unet with four downsampling depths is more suitable for our work. Compared with 3D Unet, 3D Res-Unet, and 3D SE-Unet, 3D ResSE-Unet can obtain superior results. Its dice similarity coefficient, 95th-percentile of Hausdorff distance, and average surface distance can reach 0.7367, 21.39mm, 4.962mm, respectively. And the average time cost of 3D ResSE-Unet to segment a patient is only about 10s. CONCLUSION The method proposed in this study provides a new tool for GTV auto-segmentation and may be useful for lung cancer radiotherapy.
Collapse
Affiliation(s)
- Xinhao Yu
- College of Bioengineering, 47913Chongqing University, Chongqing, China.,Department of radiation oncology, 605425Chongqing University Cancer Hospital, Chongqing, China
| | - Fu Jin
- Department of radiation oncology, 605425Chongqing University Cancer Hospital, Chongqing, China
| | - HuanLi Luo
- Department of radiation oncology, 605425Chongqing University Cancer Hospital, Chongqing, China
| | - Qianqian Lei
- Department of radiation oncology, 605425Chongqing University Cancer Hospital, Chongqing, China
| | - Yongzhong Wu
- Department of radiation oncology, 605425Chongqing University Cancer Hospital, Chongqing, China
| |
Collapse
|
10
|
Lei Q, Deng Q, Shen XH, Yu WY. [Dedifferentiated liposarcoma originating in the uterus: report of a case]. Zhonghua Bing Li Xue Za Zhi 2021; 50:1059-1061. [PMID: 34496502 DOI: 10.3760/cma.j.cn112151-20210124-00074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Q Lei
- Ningbo Clinical Pathology Diagnostic Center, Ningbo 315020, China
| | - Q Deng
- Ningbo Clinical Pathology Diagnostic Center, Ningbo 315020, China
| | - X H Shen
- Ningbo Clinical Pathology Diagnostic Center, Ningbo 315020, China
| | - W Y Yu
- Ningbo Clinical Pathology Diagnostic Center, Ningbo 315020, China
| |
Collapse
|
11
|
Zhou Y, Zhang SH, Zhao XX, Chen WL, Lei Q, He BW, Huang WX, Wu D, Chen J. [Evaluation on applicationof virtual reality technology in dental implant process training]. Zhonghua Kou Qiang Yi Xue Za Zhi 2021; 56:799-804. [PMID: 34404147 DOI: 10.3760/cma.j.cn112144-20201210-00608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the application effect and evaluation of virtual reality technology in oral implant therapy training. Methods: In November 2018, one adult patient (female, 36 years old) with missing right mandibular first molar was treated in the Department of Implantology, School and Hospital of Stomatology, Fujian Medical University. The three-dimensional virtual models of mandible and implant surgery tools were established, and the virtual reality software (Unity 3D 5.5.1) was imported. Combined with the virtual reality head mounted display, a virtual reality training system simulating the dental implant treatment process was independently developed. Ten refresher doctors and 20 graduate students in Department of Implantology, School and Hospital of Stomatology, Fujian Medical University from September 2018 to December 2019 were recruited as the experimental objects (no clinical experience was found). According to the level and seniority of doctors, they were randomly divided into virtual training group and conventional training control group, which made the two groups comparable, with 15 in each group. Subjective scores (including anatomical structure, surgical field of vision, cavity preparation, implant placement and process mastery) were given after the corresponding training in the two groups, and the virtual reality training system was used to test. The mesial and distal direction, buccolingual direction, depth and angle deviation of implants before and after the training were analyzed, and the differences between the two groups were compared. Results: The subjective scores of five dimensions in the virtual training group were significantly higher than those in the conventional training control group (P<0.05). In the virtual training group, the mesial and distal, buccolingual, depth and angle deviation of implants were (0.73±0.33), (0.78±0.41), (0.61±0.32) mm and 6.66°±3.87°. All of them were significantly lower than those in the control group [(0.85±0.32), (1.12±0.38), (0.89±0.24) mm and 9.68°±3.74°] (P<0.05). Conclusions: The self-developed virtual reality system of oral implant has good application effect, good operability and predictability. It can be effectively carried out in implant education and training, and it can strengthen skills of doctors, and is conducive to the practical operation.
Collapse
Affiliation(s)
- Y Zhou
- Department of Implantology, School and Hospital of Stomatology, Fujian Medical University & Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatological Key Laboratory of Fujian College and University & Institute of Stomatology, Fujian Medical University & Research Center of Dental and Craniofacial Implants, Fujian Medical University, Fuzhou 350002, China
| | - S H Zhang
- Department of Implantology, School and Hospital of Stomatology, Fujian Medical University & Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatological Key Laboratory of Fujian College and University & Institute of Stomatology, Fujian Medical University & Research Center of Dental and Craniofacial Implants, Fujian Medical University, Fuzhou 350002, China
| | - X X Zhao
- School of Stomatology, Fujian Medical University, Fuzhou 350004, China
| | - W L Chen
- Department of Implantology, School and Hospital of Stomatology, Fujian Medical University & Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatological Key Laboratory of Fujian College and University & Institute of Stomatology, Fujian Medical University & Research Center of Dental and Craniofacial Implants, Fujian Medical University, Fuzhou 350002, China
| | - Q Lei
- Department of Implantology, School and Hospital of Stomatology, Fujian Medical University & Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatological Key Laboratory of Fujian College and University & Institute of Stomatology, Fujian Medical University & Research Center of Dental and Craniofacial Implants, Fujian Medical University, Fuzhou 350002, China
| | - B W He
- School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou 350108, China
| | - W X Huang
- Department of Implantology, School and Hospital of Stomatology, Fujian Medical University & Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatological Key Laboratory of Fujian College and University & Institute of Stomatology, Fujian Medical University & Research Center of Dental and Craniofacial Implants, Fujian Medical University, Fuzhou 350002, China
| | - D Wu
- Department of Implantology, School and Hospital of Stomatology, Fujian Medical University & Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatological Key Laboratory of Fujian College and University & Institute of Stomatology, Fujian Medical University & Research Center of Dental and Craniofacial Implants, Fujian Medical University, Fuzhou 350002, China
| | - J Chen
- Department of Implantology, School and Hospital of Stomatology, Fujian Medical University & Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatological Key Laboratory of Fujian College and University & Institute of Stomatology, Fujian Medical University & Research Center of Dental and Craniofacial Implants, Fujian Medical University, Fuzhou 350002, China
| |
Collapse
|
12
|
Lei H, Yang Y, Zhou W, Zhang M, Shen Y, Tao D, Wang L, Lei Q, Wang Y, Wu Y. Higher mortality in lung cancer patients with COVID-19? A systematic review and meta-analysis. Lung Cancer 2021; 157:60-65. [PMID: 33985850 PMCID: PMC8098047 DOI: 10.1016/j.lungcan.2021.05.002] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 04/02/2021] [Accepted: 05/01/2021] [Indexed: 12/30/2022]
Abstract
Objective Given that the coronavirus disease 2019 (COVID-19) mainly spreads through the respiratory system and is associated with severe pulmonary complications, lung cancer patients may have worse outcomes than those with other tumors. There is no confirmed evidence about the mortality comparison between COVID-19 patients with lung cancer and other tumors. We performed a systematic review and pooled analysis to provide precise estimates of the mortality rate of COVID-19 patients with lung cancer and other tumors. Materials and Methods Our study systemically included and reviewed 13 studies on the characteristics of COVID-19 patients with lung cancer published up to November 1, 2020. The primary endpoint was all-cause mortality. We also compared the all-cause mortality rates in China and other regions as a secondary endpoint. The mortality rate was assessed with a fixed-effects model, which was used to derive the pooled mortality and 95 % confidence interval (CI). Results Thirteen studies from different countries, involving 1,229 patients with both COVID-19 and cancer, were selected for the pooled analysis. A total of 343 deaths were recorded in this population: 86 for lung cancers and 257 for other tumors. The mortality rate varies from 18 % to 60 % for patients with lung cancer and COVID-19 and 10%–41% for other tumor patients with COVID-19. The overall meta-analysis did not show a significant mortality difference for the lung cancer and other tumor subgroups (OR = 1.47, 95 %CI = 0.98–2.20, p = 0.06, I2 = 23 %). Nevertheless, in regions other than China, the pooled mortality of lung cancer patients with COVID-19 was 42 %, which was significantly higher than that of other tumors (24 %) (OR = 2.73, 95 % CI = 1.54–4.86, p = 0.0006, I2 = 16 %). Conclusion Appropriate and aggressive preventive measures should be implemented to reduce the risk of COVID-19 in patients with cancer and optimally manage those who contract the infection.
Collapse
Affiliation(s)
- Haike Lei
- Chongqing Key Laboratory of Translational Research for Cancer Metastasis and Individualized Treatment, Chongqing University Cancer Hospital, Chongqing, 400030, China
| | - Yue Yang
- Chongqing Key Laboratory of Translational Research for Cancer Metastasis and Individualized Treatment, Chongqing University Cancer Hospital, Chongqing, 400030, China
| | - Wei Zhou
- Chongqing Key Laboratory of Translational Research for Cancer Metastasis and Individualized Treatment, Chongqing University Cancer Hospital, Chongqing, 400030, China
| | - Mengyang Zhang
- Chongqing Key Laboratory of Translational Research for Cancer Metastasis and Individualized Treatment, Chongqing University Cancer Hospital, Chongqing, 400030, China
| | - Yang Shen
- Chongqing Key Laboratory of Translational Research for Cancer Metastasis and Individualized Treatment, Chongqing University Cancer Hospital, Chongqing, 400030, China
| | - Dan Tao
- Chongqing Key Laboratory of Translational Research for Cancer Metastasis and Individualized Treatment, Chongqing University Cancer Hospital, Chongqing, 400030, China
| | - Lulu Wang
- Chongqing Key Laboratory of Translational Research for Cancer Metastasis and Individualized Treatment, Chongqing University Cancer Hospital, Chongqing, 400030, China
| | - Qianqian Lei
- Chongqing Key Laboratory of Translational Research for Cancer Metastasis and Individualized Treatment, Chongqing University Cancer Hospital, Chongqing, 400030, China
| | - Ying Wang
- Chongqing Key Laboratory of Translational Research for Cancer Metastasis and Individualized Treatment, Chongqing University Cancer Hospital, Chongqing, 400030, China.
| | - Yongzhong Wu
- Chongqing Key Laboratory of Translational Research for Cancer Metastasis and Individualized Treatment, Chongqing University Cancer Hospital, Chongqing, 400030, China.
| |
Collapse
|
13
|
Liu X, Lei Q, Yu Z, Xu G, Tang H, Wang W, Wang Z, Li G, Wu M. Correction: MiR-101 reverses the hypomethylation of the LMO3 promoter in glioma cells. Oncotarget 2020; 11:4605-4606. [PMID: 33346242 PMCID: PMC7733623 DOI: 10.18632/oncotarget.27716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Affiliation(s)
- Xiaoping Liu
- Hunan Provincial Tumor Hospital and the Affiliated Tumor Hospital of Xiangya Medical School, Central South University, Changsha 410013, Hunan, China.,Department of Breast Oncology, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, Guangdong, China
| | - Qianqian Lei
- Hunan Provincial Tumor Hospital and the Affiliated Tumor Hospital of Xiangya Medical School, Central South University, Changsha 410013, Hunan, China
| | - Zhibin Yu
- Hunan Provincial Tumor Hospital and the Affiliated Tumor Hospital of Xiangya Medical School, Central South University, Changsha 410013, Hunan, China
| | - Gang Xu
- Hunan Provincial Tumor Hospital and the Affiliated Tumor Hospital of Xiangya Medical School, Central South University, Changsha 410013, Hunan, China.,Medical College, University of South China, Hengyang 421001, Hunan, China
| | - Hailin Tang
- Department of Breast Oncology, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, Guangdong, China
| | - Wei Wang
- Hunan Provincial Tumor Hospital and the Affiliated Tumor Hospital of Xiangya Medical School, Central South University, Changsha 410013, Hunan, China
| | - Zeyou Wang
- Hunan Provincial Tumor Hospital and the Affiliated Tumor Hospital of Xiangya Medical School, Central South University, Changsha 410013, Hunan, China
| | - Guiyuan Li
- Hunan Provincial Tumor Hospital and the Affiliated Tumor Hospital of Xiangya Medical School, Central South University, Changsha 410013, Hunan, China.,School of Basic Medical Science, Cancer Research Institute, Central South University, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Key Laboratory of Carcinogenesis, Ministry of Health, Changsha 410078, Hunan, China
| | - Minghua Wu
- Hunan Provincial Tumor Hospital and the Affiliated Tumor Hospital of Xiangya Medical School, Central South University, Changsha 410013, Hunan, China.,School of Basic Medical Science, Cancer Research Institute, Central South University, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Key Laboratory of Carcinogenesis, Ministry of Health, Changsha 410078, Hunan, China
| |
Collapse
|
14
|
Bai Y, Wang Y, Chen B, Qin Y, Lei Q, Zhao H, Lu J, Fan Q, Wang Y, Song H, Cheng M, Wang W, Hu S, Du YH, Xia T. Stuck-moving needle acupuncture myofascial trigger point to treat idiopathic frozen shoulder: study protocol for a randomized controlled trial. Trials 2020; 21:901. [PMID: 33126918 PMCID: PMC7597058 DOI: 10.1186/s13063-020-04799-w] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Accepted: 10/10/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND There are evidence for the efficacy of acupuncture treatment for chronic shoulder pain, however, it remains unclear the best acupuncture modes for effective treatment. We compared the effect of the myofascial trigger point (MTrp) stuck-moving needle acupuncture with that of common acupuncture treatments. Further, we evaluated the efficacy and safety of stuck-moving needle acupuncture for the MTrp in improving pain and range of motions in patients with idiopathic frozen shoulder. The aim of present study is to select an effective therapy for patients with idiopathic frozen shoulder. METHODS Randomized controlled trial will be conducted in the three clinical centers of Qingyang Traditional Chinese Medicine Hospital, Qingyang Xifeng district People's Hospital, and Qingyang Second People's Hospital in China from February 2020 to January 2021. One hundred and eight frozen shoulder patients will be recruited and randomized into one of three groups in a 1:1:1 ratio of the stuck-moving needle acupuncture group, common acupuncture control group, and physical exercise control group. This trial will include a 1-week baseline period, a 3-week treatment period, and a 12-week follow-up period. During the 3 weeks of the treatment period, patients will receive nine sessions of acupuncture. The primary outcome will be related to change in the Visual Analogue Scale (VAS) and measurement of range of joint motion (ROM) from the baseline period to the 12-week follow-up period. Secondary outcome measures will include measurement of pressure pain threshold (PPT), pressure pain tolerance (PTT), Oxford Shoulder Score (OSS), 36-item short form survey, and patient satisfaction evaluation. Adverse events also will be recorded for safety assessment. DISCUSSION The results of this trial will allow us to compare the difference in efficacy between stuck-moving needle acupuncture MTrP with that of common acupuncture treatments. The findings from this trial will be published in the peer-reviewed journals. TRIAL REGISTRATION Acupuncture-Moxibustion Clinical Trial Registry (ChiMCTR1900002862) and Chinese Clinical Trial Registry (ChiCTR1900028452). Registered on 22 December 2019. http://www.chictr.org.cn/showproj.aspx?proj=47354.
Collapse
Affiliation(s)
- Yang Bai
- The First Affiliated Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China
- Tianjin University of Traditional Chinese Medicine, Tianjin, 300073, China
- Department of Acupuncture and Massage, Qingyang Hospital of Traditional Chinese Medicine, Qingyang, 745000, Gansu, China
| | - Ying Wang
- The First Affiliated Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China
- Tianjin University of Traditional Chinese Medicine, Tianjin, 300073, China
- Department of Reproductive Medicine, The First People's Hospital of Nanyang, Nanyang, 473005, Henan, China
| | - Bo Chen
- Tianjin University of Traditional Chinese Medicine, Tianjin, 300073, China
| | - Yinan Qin
- The First Affiliated Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China
- Tianjin University of Traditional Chinese Medicine, Tianjin, 300073, China
| | - Qianqian Lei
- Department of Acupuncture and Massage, Qingyang Hospital of Traditional Chinese Medicine, Qingyang, 745000, Gansu, China
| | - Hailong Zhao
- Department of Acupuncture and Massage, Qingyang Hospital of Traditional Chinese Medicine, Qingyang, 745000, Gansu, China
| | - Jingbao Lu
- Department of Acupuncture and Massage, Qingyang Hospital of Traditional Chinese Medicine, Qingyang, 745000, Gansu, China
| | - Qian Fan
- Department of Acupuncture and Massage, Qingyang Hospital of Traditional Chinese Medicine, Qingyang, 745000, Gansu, China
| | - Yali Wang
- Department of Acupuncture and Massage, Qingyang Hospital of Traditional Chinese Medicine, Qingyang, 745000, Gansu, China
| | - Hongbo Song
- Department of Acupuncture and Massage, Qingyang Hospital of Traditional Chinese Medicine, Qingyang, 745000, Gansu, China
| | - Maomao Cheng
- Department of Acupuncture and Massage, Qingyang Hospital of Traditional Chinese Medicine, Qingyang, 745000, Gansu, China
| | - Wei Wang
- Department of Acupuncture and Massage, Qingyang Hospital of Traditional Chinese Medicine, Qingyang, 745000, Gansu, China
| | - Shengen Hu
- Department of Acupuncture and Massage, Qingyang Hospital of Traditional Chinese Medicine, Qingyang, 745000, Gansu, China
| | - Yuan Hao Du
- The First Affiliated Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China.
| | - Tian Xia
- The First Affiliated Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China.
| |
Collapse
|
15
|
Abstract
Background The aim of this study is to identify the potential pathogenic and metastasis-related differentially expressed genes (DEGs) in osteosarcoma through bioinformatic analysis of Gene Expression Omnibus (GEO) database. Results Gene expression profiles of GSE14359, GSE16088, and GSE33383, in total 112 osteosarcoma tissue samples and 7 osteoblasts, were analyzed. Seventy-four normal-primary DEGs (NPDEGs) and 764 primary-metastatic DEGs (PMDEGs) were screened. VAMP8, A2M, HLA-DRA, SPARCL1, HLA-DQA1, APOC1 and AQP1 were identified continuously upregulating during the oncogenesis and metastasis of osteosarcoma. The enriched functions and pathways of NPDEGs include procession and presentation of antigens, activation of MHC class II receptors and phagocytosis. The enriched functions and pathways of PMDEGs include mitotic nuclear division, cell adhesion molecules (CAMs) and focal adhesion. With protein-protein interaction (PPI) network analyzed by Molecular Complex Detection (MCODE) plug-in of Cytoscape software, one hub NPDEG (HLA-DRA) and 7 hub PMDEGs (CDK1, CDK20, CCNB1, MTIF2, MRPS7, VEGFA and EGF) were eventually selected, and the most significant pathways in NPDEGs module and PMDEGs module were enriched in the procession and presentation of exogenous peptide antigen via MHC class II and the nuclear division, respectively. Conclusions By integrated bioinformatic analysis, numerous DEGs related to osteosarcoma were screened, and the hub DEGs identified in this study are possibly part of the potential biomarkers for osteosarcoma. However, further experimental studies are still necessary to elucidate the biological function and mechanism of these genes.
Collapse
Affiliation(s)
- Junwei Liu
- Department of Orthopedic surgery, Daping Hospital, Army medical university, No. 10 Changjiang Branch Road, Yuzhong District, Chongqing, 400042, PR China
| | - Siyu Wu
- Department of Orthopedic surgery, Daping Hospital, Army medical university, No. 10 Changjiang Branch Road, Yuzhong District, Chongqing, 400042, PR China
| | - Xiaoyu Xie
- Department of Orthopedic surgery, Daping Hospital, Army medical university, No. 10 Changjiang Branch Road, Yuzhong District, Chongqing, 400042, PR China
| | - Ziming Wang
- Department of Orthopedic surgery, Daping Hospital, Army medical university, No. 10 Changjiang Branch Road, Yuzhong District, Chongqing, 400042, PR China.
| | - Qianqian Lei
- Department of Radiation Oncology, Chongqing University Cancer Hospital, No. 181, Hanyu road, Shapingba District, Chongqing, 400030, PR China.
| |
Collapse
|
16
|
Liu J, Wu S, Xie X, Wang Z, Lei Q. The role of significantly deregulated MicroRNAs in osteosarcoma based on bioinformatic analysis. Technol Health Care 2020; 29:333-341. [PMID: 32568133 DOI: 10.3233/thc-202138] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [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: 11/15/2022]
Abstract
OBJECTIVE This study aimed to identify potential key microRNAs (miRNAs) in osteosarcoma and construct miRNA-mRNA negative regulatory networks through analysis of the Gene Expression Omnibus (GEO) database. METHODS The differentially expressed miRNAs (DE-miRNAs) in GSE28423 were screened, and their prognostic value was assessed with the prognostic data of GSE39058. The target genes of prognostic DE-miRNAs were predicted and underwent Gene Ontology (GO) classification and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis. In addition, the expression of all predicted target genes were assessed using the mRNA array data of GSE28424. Finally, the gene-drug interaction network was constructed. RESULTS We identified 205 DE-miRNAs between osteosarcoma cells and normal bone. Among them, high expression of miR-411-3p and miR-487b-5p were correlated with prolonged survival. Furthermore, 2659 genes predicted as targets of miR-411-3p or miR-487b-5p were clustered in 42 significant GO categories, including "regulation of neurotransmitter secretion" and "phosphoprotein binding", as well as 23 significant KEGG pathways, such as "MAPK signaling pathway" and "Ras signaling pathway". Five of the 75 overlapping target genes of miR-411-3p and miR-487b-5p were downregulated in osteosarcoma, including ZBTB20, ADAMTS4, GLIPR2, CLIC5 and CBX7. CONCLUSIONS Our findings might help clarify molecular mechanisms underlying the oncogenesis and development, and offer potential targets for osteosarcoma.
Collapse
Affiliation(s)
- Junwei Liu
- Department of Orthopedic Surgery, Daping Hospital, Army Medical University, Chongqing, China
| | - Siyu Wu
- Department of Orthopedic Surgery, Daping Hospital, Army Medical University, Chongqing, China
| | - Xiaoyu Xie
- Department of Orthopedic Surgery, Daping Hospital, Army Medical University, Chongqing, China
| | - Ziming Wang
- Department of Orthopedic Surgery, Daping Hospital, Army Medical University, Chongqing, China
| | - Qianqian Lei
- Department of Radiation Oncology, Chongqing University Cancer Hospital, Chongqing, China
| |
Collapse
|
17
|
Lahmamssi C, Guy JB, Benchekroun N, Bouchbika Z, Taoufik N, Jouhadi H, Sahraoui S, Benider A, Ben Mrad M, Jmour O, Bousarsar A, Lan M, Lei Q, Benna M, Moslemi D, Vallard A, Magné N. Désescalade thérapeutique dans les cancers de l’oropharynx induit par les HPV : mise au point. Cancer Radiother 2020. [DOI: 10.1016/j.canrad.2020.03.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
18
|
Lahmamssi C, Guy JB, Benchekroun N, Bouchbika Z, Taoufik N, Jouhadi H, Sahraoui S, Benider A, Ben Mrad M, Jmour O, Bousarsar A, Lan M, Lei Q, Benna M, Moslemi D, Vallard A, Magné N. Désescalade thérapeutique dans les cancers de l’oropharynx induit par les HPV : mise au point. Cancer Radiother 2020. [DOI: 10.1016/j.canrad.2020.03.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
19
|
Li L, Zang Y, Lin S, Hu J, Han Y, Chu Q, Lei Q, Chen H. Fabrication and characterization of SiC/Ge/graphene heterojunction with Ge micro-nano structures. Nanotechnology 2020; 31:145202. [PMID: 31891919 DOI: 10.1088/1361-6528/ab6676] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
To widen the detection wavelength range and improve the detection sensitivity of SiC-based optoelectronic devices, the SiC/Ge/graphene heterojunction was fabricated by using wet transfer of the graphene following chemical vapor deposition. The Ge films on 4H-SiC(0001) have polycrystalline structure with nano-wire (NWs) and submicron spherical island (SIs) features. Due to the distinct light trapping effect of the Ge NWs, the SiC/GeNWs/graphene heterojunction has an absorbance of more than 90% in the 500-1600 nm range, which is higher than the SiC/GeSIs/graphene heterojunction. And the SiC/GeNWs/graphene heterojunction photodetector exhibits rectification ratio up to 25 at ±2 V and stable photoresponse to the NIR light at zero voltage bias.
Collapse
Affiliation(s)
- Lianbi Li
- School of Science, Xi'an Polytechnic University, Xi'an, People's Republic of China
| | | | | | | | | | | | | | | |
Collapse
|
20
|
Lahmamssi C, Guy JB, Benchekroun N, Bouchbika Z, Taoufik N, Jouhadi H, Sahraoui S, Benider A, Ben Mrad M, Jmour O, Bousarsar A, Lan ML, Lei Q, Benna M, Moslemi D, Vallard A, Magné N. [Treatment de-intensification strategies for HPV-driven oropharyngeal cancer: A short review]. Cancer Radiother 2020; 24:258-266. [PMID: 32229067 DOI: 10.1016/j.canrad.2019.12.003] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Revised: 12/09/2019] [Accepted: 12/18/2019] [Indexed: 11/18/2022]
Abstract
The incidence of oropharyngeal cancer induced by human papillomavirus (HPV) infection is steadily increasing in developed countries. These tumors are more chemoradiosensitive and have a better prognosis than HPV-negative one. In addition, they occur in younger and better-off patients with longer life expectancy. Current radiotherapy and chemotherapy protocols are currently being questioned as they may expose HPV-positive patients to excessive treatment and unnecessary toxic effects. Less intensive treatment regimens could possibly achieve similar efficacy with lower toxicity and improved quality of life. The aim of this work was to summarize the knowledge on these tumors and their implications for radiation oncologists. In this update, we will discuss ongoing de-escalation trials and highlight the issues raised by these studies. We will also comment on the results of recently published de-intensification studies. Three main strategies are analyzed in the present article: the de-escalation of the drug associated with radiotherapy, the de-escalation of the radiotherapy dose (in concomitant chemoradiotherapy, after induction chemotherapy, in a postoperative setting) and de-escalation of radiation target volumes. Our findings ultimately indicate that clinicians should not change the management of oropharyngeal cancer patients outside of clinical trials.
Collapse
Affiliation(s)
- C Lahmamssi
- Département de radiothérapie, institut de cancérologie Lucien-Neuwirth, Saint-Priest-en-Jarez, France; Centre Mohammed VI de cancérologie CHU IBN Rochd de Casablanca, université HASSAN II, Casablanca, Maroc
| | - J-B Guy
- Département de radiothérapie, institut de cancérologie Lucien-Neuwirth, Saint-Priest-en-Jarez, France
| | - N Benchekroun
- Centre Mohammed VI de cancérologie CHU IBN Rochd de Casablanca, université HASSAN II, Casablanca, Maroc
| | - Z Bouchbika
- Centre Mohammed VI de cancérologie CHU IBN Rochd de Casablanca, université HASSAN II, Casablanca, Maroc
| | - N Taoufik
- Centre Mohammed VI de cancérologie CHU IBN Rochd de Casablanca, université HASSAN II, Casablanca, Maroc
| | - H Jouhadi
- Centre Mohammed VI de cancérologie CHU IBN Rochd de Casablanca, université HASSAN II, Casablanca, Maroc
| | - S Sahraoui
- Centre Mohammed VI de cancérologie CHU IBN Rochd de Casablanca, université HASSAN II, Casablanca, Maroc
| | - A Benider
- Centre Mohammed VI de cancérologie CHU IBN Rochd de Casablanca, université HASSAN II, Casablanca, Maroc
| | - M Ben Mrad
- Département de radiothérapie, institut de cancérologie Lucien-Neuwirth, Saint-Priest-en-Jarez, France
| | - O Jmour
- Département de radiothérapie, institut de cancérologie Lucien-Neuwirth, Saint-Priest-en-Jarez, France
| | - A Bousarsar
- Département de radiothérapie, institut de cancérologie Lucien-Neuwirth, Saint-Priest-en-Jarez, France
| | - M L Lan
- Département de radiothérapie, institut de cancérologie Lucien-Neuwirth, Saint-Priest-en-Jarez, France
| | - Q Lei
- Département de radiothérapie, institut de cancérologie Lucien-Neuwirth, Saint-Priest-en-Jarez, France
| | - M Benna
- Département de radiothérapie, institut de cancérologie Lucien-Neuwirth, Saint-Priest-en-Jarez, France
| | - D Moslemi
- Département de radiothérapie, institut de cancérologie Lucien-Neuwirth, Saint-Priest-en-Jarez, France; Department of radiation Oncology, Babol University of Medical Science, Babol, Iran
| | - A Vallard
- Département de radiothérapie, institut de cancérologie Lucien-Neuwirth, Saint-Priest-en-Jarez, France
| | - N Magné
- Département de radiothérapie, institut de cancérologie Lucien-Neuwirth, Saint-Priest-en-Jarez, France.
| |
Collapse
|
21
|
Gao J, Liu W, Geng B, Lei Q, Han H, Zhou Y, Liu J, Cao D, Li H, Li F. Effect of Plant Essential Oil on Growth Performance and Immune Function During Rearing Period in Laying Hens. Braz J Poult Sci 2020. [DOI: 10.1590/1806-9061-2019-1244] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- J Gao
- Shandong Academy of Agricultural Sciences, China; Sericultural Research Institute of Shandong Province, China
| | - W Liu
- Shandong Academy of Agricultural Sciences, China; Poultry Breeding Engineering Technology Center of Shandong Province, China
| | - B Geng
- Sericultural Research Institute of Shandong Province, China
| | - Q Lei
- Shandong Academy of Agricultural Sciences, China; Poultry Breeding Engineering Technology Center of Shandong Province, China
| | - H Han
- Shandong Academy of Agricultural Sciences, China; Poultry Breeding Engineering Technology Center of Shandong Province, China
| | - Y Zhou
- Shandong Academy of Agricultural Sciences, China; Poultry Breeding Engineering Technology Center of Shandong Province, China
| | - J Liu
- Shandong Academy of Agricultural Sciences, China; Poultry Breeding Engineering Technology Center of Shandong Province, China
| | - D Cao
- Shandong Academy of Agricultural Sciences, China; Poultry Breeding Engineering Technology Center of Shandong Province, China
| | - H Li
- Shandong Academy of Agricultural Sciences, China; Poultry Breeding Engineering Technology Center of Shandong Province, China
| | - F Li
- Shandong Academy of Agricultural Sciences, China; Poultry Breeding Engineering Technology Center of Shandong Province, China
| |
Collapse
|
22
|
Chen K, Lei Q, Xiong H, Chen Y, Luo W, Liang Y. A 2-year clinical evaluation of stainless steel crowns and composite resin restorations in primary molars under general anaesthesia in China's Guangdong province. Br Dent J 2019; 225:49-52. [PMID: 30002536 DOI: 10.1038/sj.bdj.2018.519] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/08/2018] [Indexed: 01/29/2023]
Affiliation(s)
- K Chen
- Stomatological Hospital, Southern Medical University, Guangzhou, China.,Department of Stomatology of Guangzhou Women and Children's Medical Center, Guangzhou, Guangdong, China
| | - Q Lei
- Shenzhen Hospital, Southern Medical University, Shenzhen, China
| | - H Xiong
- Department of Stomatology of Guangzhou Women and Children's Medical Center, Guangzhou, Guangdong, China
| | - Y Chen
- Department of Stomatology of Guangzhou Women and Children's Medical Center, Guangzhou, Guangdong, China
| | - W Luo
- Department of Stomatology of Guangzhou Women and Children's Medical Center, Guangzhou, Guangdong, China
| | - Y Liang
- Department of Stomatology of Guangzhou Women and Children's Medical Center, Guangzhou, Guangdong, China
| |
Collapse
|
23
|
Trone JC, Langrand-Escure J, Ollier E, Jmour O, Ben Mrad M, Nevesny S, Lei Q, Benna M, Yazid D, Guy JB, Vallard A, Magné N. Chemoradiation phase II trials: re-exploring a world of missed opportunities. Acta Oncol 2019; 58:1158-1162. [PMID: 31074314 DOI: 10.1080/0284186x.2019.1605194] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Background: Phase II trials are designed to assess the efficacy/toxicity ratio of experimental treatments and select those worth being tested in phase III trials. Although crucial limitations were identified when concurrent chemoradiation (cCRT) phase III trials characteristics were assessed, features of cCRT phase II trials have never been reported. The objective was to describe features of all cCRT phase II trials. Methods and material: Requests were performed in the Medline database (via PubMed). The latest update was performed in April 2016, using the following MESH terms: 'clinical trials: phase II as topic', 'chemoradiotherapy'. Results: Four hundred and fifty-eight cCRT phase II trials were identified. They were mainly multicenter (51.5%), single arm studies (77.7%) published after 2011 (55.0%). The median number of included patients was 52. Primary endpoints were mainly response rate (20.5%), pathological complete response (14.4%) and overall survival (12.6%). The primary endpoint was not defined in 22% of studies. Tumors were mostly lung (23.1%), head and neck (20.3%), colorectal (16.6%) and esophagogastric cancer (14.6%) treated at a locally advanced setting (81.7%). 55.2% of trials used 3D-conformal radiotherapy and 9.1% intensity-modulated radiotherapy, mainly with normo-fractionation (82.0% of the 573 arms with radiotherapy). Radiation technique was not reported in 19.9% of studies. Associated anticancer drugs (563 arms) were mainly conventional chemotherapies (559 arms): cisplatin (46.2%) and 5-fluorouracil (28.3%). Non cytotoxic agents (targeted therapies, immunotherapies) were tested in 97 arms (17%). With a median follow-up of 31 months, acute grades 3-5 were reported in 98.5% of studies and late toxicities in 44.5%. Follow-up was not reported in 17% of studies. Conclusions: cCRT phase II trials featured severe limitations, with outdated radiation techniques, insufficient reporting of crucial data and a small number of included patients. This certainly limited the impact of conclusions and hindered the development of successful phase III trials.
Collapse
Affiliation(s)
- Jane-Chloé Trone
- Department of Radiation Oncology, Lucien Neuwirth Cancer Institute, Saint-Priest-en-Jarez, France
| | - Julien Langrand-Escure
- Department of Radiation Oncology, Lucien Neuwirth Cancer Institute, Saint-Priest-en-Jarez, France
| | - Edouard Ollier
- SAINBIOSE U1059, Jean Monnet University, Saint-Etienne, France
| | - Omar Jmour
- Department of Radiation Oncology, Lucien Neuwirth Cancer Institute, Saint-Priest-en-Jarez, France
| | - Majed Ben Mrad
- Department of Radiation Oncology, Lucien Neuwirth Cancer Institute, Saint-Priest-en-Jarez, France
| | - Stéphane Nevesny
- Department of Radiation Oncology, Lucien Neuwirth Cancer Institute, Saint-Priest-en-Jarez, France
| | - Qianqian Lei
- Department of Radiation Oncology, Lucien Neuwirth Cancer Institute, Saint-Priest-en-Jarez, France
| | - Marouan Benna
- Department of Radiation Oncology, Lucien Neuwirth Cancer Institute, Saint-Priest-en-Jarez, France
| | - Dalia Yazid
- Department of Radiation Oncology, Lucien Neuwirth Cancer Institute, Saint-Priest-en-Jarez, France
| | - Jean-Baptiste Guy
- Department of Radiation Oncology, Lucien Neuwirth Cancer Institute, Saint-Priest-en-Jarez, France
| | - Alexis Vallard
- Department of Radiation Oncology, Lucien Neuwirth Cancer Institute, Saint-Priest-en-Jarez, France
| | - Nicolas Magné
- Department of Radiation Oncology, Lucien Neuwirth Cancer Institute, Saint-Priest-en-Jarez, France
| |
Collapse
|
24
|
Liu C, Fu H, Liu X, Lei Q, Zhang Y, She X, Liu Q, Liu Q, Sun Y, Li G, Wu M. LINC00470 Coordinates the Epigenetic Regulation of ELFN2 to Distract GBM Cell Autophagy. Mol Ther 2018; 26:2267-2281. [PMID: 30037656 PMCID: PMC6127511 DOI: 10.1016/j.ymthe.2018.06.019] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2018] [Revised: 06/14/2018] [Accepted: 06/20/2018] [Indexed: 12/31/2022] Open
Abstract
The epigenetics and genomics of glioblastoma (GBM) are complicated. Previous reports indicate that ELFN2 is widely distributed in the cerebral cortex neurons, striatum, and hippocampus cone and in granular cells. However, the function and mechanism of ELFN2, particularly in GBM, have rarely been explored. In this study, we identified ELFN2 as a new hypomethylation gene that acts as an oncogene in GBM. ELFN2 promoted cell autophagy by interacting with AurkA and eIF2α and inhibiting the activation of AurkA. We also demonstrated that aberrantly high ELFN2 expression is obtained due to hypomethylation of its promoter and abnormal miR-101 and LINC00470 expression in GBM. LINC00470 not only enhanced the expression of ELFN2 through adsorption of miR-101 but also affected the methylation level of ELFN2 by decreasing H3K27me3 occupancy. In addition, LINC00470 played a dominant role in the regulation of GBM cell autophagy, even though it upregulated ELFN2 expression. The results indicate that the combination of LINC00470 and ELFN2 has important significance for evaluating the prognosis of astrocytoma patients.
Collapse
Affiliation(s)
- Changhong Liu
- Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha 410013, Hunan, China; Cancer Research Institute, School of Basic Medical Science, Central South University, Changsha 410078, Hunan, China; Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Changsha 410078, Hunan, China; Key Laboratory of Carcinogenesis, Ministry of Health, Changsha 410078, Hunan, China
| | - Haijuan Fu
- Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha 410013, Hunan, China; Cancer Research Institute, School of Basic Medical Science, Central South University, Changsha 410078, Hunan, China; Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Changsha 410078, Hunan, China; Key Laboratory of Carcinogenesis, Ministry of Health, Changsha 410078, Hunan, China
| | - Xiaoping Liu
- Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, Guangdong, China
| | - Qianqian Lei
- Department of Pathology, Zhengzhou University People's Hospital & Henan Provincial People's Hospital, Zhengzhou 450000, Henan, China
| | - Yan Zhang
- Cancer Research Institute, School of Basic Medical Science, Central South University, Changsha 410078, Hunan, China; Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Changsha 410078, Hunan, China; Key Laboratory of Carcinogenesis, Ministry of Health, Changsha 410078, Hunan, China
| | - Xiaoling She
- Second Xiangya Hospital, Central South University, Changsha 410013, Hunan, China
| | - Qiang Liu
- Third Xiangya Hospital, Central South University, Changsha 410013, Hunan, China
| | - Qing Liu
- Xiangya Hospital, Central South University, Changsha 410013, Hunan, China
| | - Yingnan Sun
- Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha 410013, Hunan, China
| | - Guiyuan Li
- Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha 410013, Hunan, China; Cancer Research Institute, School of Basic Medical Science, Central South University, Changsha 410078, Hunan, China; Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Changsha 410078, Hunan, China; Key Laboratory of Carcinogenesis, Ministry of Health, Changsha 410078, Hunan, China
| | - Minghua Wu
- Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha 410013, Hunan, China; Cancer Research Institute, School of Basic Medical Science, Central South University, Changsha 410078, Hunan, China; Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Changsha 410078, Hunan, China; Key Laboratory of Carcinogenesis, Ministry of Health, Changsha 410078, Hunan, China.
| |
Collapse
|
25
|
Deng L, Lei Q, Wang Y, Wang Z, Xie G, Zhong X, Wang Y, Chen N, Qiu Y, Pu T, Bu H, Zheng H. Downregulation of miR-221-3p and upregulation of its target gene PARP1 are prognostic biomarkers for triple negative breast cancer patients and associated with poor prognosis. Oncotarget 2017; 8:108712-108725. [PMID: 29312562 PMCID: PMC5752475 DOI: 10.18632/oncotarget.21561] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2015] [Accepted: 09/13/2017] [Indexed: 02/05/2023] Open
Abstract
The purpose of this study was to identify microRNAs (miRNAs) closely associated with the prognosis of triple-negative breast cancer (TNBC) and their possible targets. This study recruited 125 early-stage TNBC patients, including 40 cases in the experimental group (20 cases with poor prognoses vs. 20 cases with good prognoses) and 85 cases in the validation group (27 cases with poor prognoses vs. 58 cases with good prognoses). In the experimental group, miRNA microarray showed 34 differentially expressed miRNAs in patients with different prognoses. We selected 5 miRNAs for validation. The differential expression of miR-221-3p was further verified in the experimental and validation groups using real-time polymerase chain reaction (PCR). High miR-221-3p expression was associated with better 5-year disease-free survival (DFS) (HR = 0.480; 95% CI, 0.263-0.879; p = 0.017) of TNBC patients. High expression of its target gene PARP1 predicted poorer 5-year DFS (HR = 2.236, 95% CI, 1.209-4.136, p = 0.010). MiR-221-3p down-regulated PARP1 by targeting its 3'-untranslated region. In conclusion, low miR-221-3p expression may contribute to the poor outcome of TNBC patients through regulating PARP1. MiR-221-3p likely plays a role as a PARP1 inhibitor by directly regulating PARP1 expression, thereby affecting the prognoses of TNBC patients.
Collapse
Affiliation(s)
- Ling Deng
- Laboratory of Molecular Diagnosis of Cancer, Clinical Research Center for Breast, State Key Laboratory of Biotherapy, National Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Qianqian Lei
- Laboratory of Molecular Diagnosis of Cancer, Clinical Research Center for Breast, State Key Laboratory of Biotherapy, National Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, China.,Department of Radiation Oncology, Chongqing Cancer Institute & Hospital & Cancer Center, Chongqing, China
| | - Yu Wang
- Laboratory of Molecular Diagnosis of Cancer, Clinical Research Center for Breast, State Key Laboratory of Biotherapy, National Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Zhu Wang
- Laboratory of Molecular Diagnosis of Cancer, Clinical Research Center for Breast, State Key Laboratory of Biotherapy, National Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Guiqin Xie
- Laboratory of Molecular Diagnosis of Cancer, Clinical Research Center for Breast, State Key Laboratory of Biotherapy, National Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Xiaorong Zhong
- Laboratory of Molecular Diagnosis of Cancer, Clinical Research Center for Breast, State Key Laboratory of Biotherapy, National Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Yanping Wang
- Laboratory of Molecular Diagnosis of Cancer, Clinical Research Center for Breast, State Key Laboratory of Biotherapy, National Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Nianyong Chen
- Cancer center, West China Hospital, Sichuan University, Chengdu, China
| | - Yan Qiu
- Department of Pathology, West China Hospital, Sichuan University, Chengdu, China
| | - Tianjie Pu
- Department of Pathology, West China Hospital, Sichuan University, Chengdu, China
| | - Hong Bu
- Department of Pathology, West China Hospital, Sichuan University, Chengdu, China
| | - Hong Zheng
- Laboratory of Molecular Diagnosis of Cancer, Clinical Research Center for Breast, State Key Laboratory of Biotherapy, National Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, China.,Cancer center, West China Hospital, Sichuan University, Chengdu, China
| |
Collapse
|
26
|
Lei Q, Chen C, Wu XL, Chen WJ, Yi T, Ma MD, He Y, Shui XR, Huang SA, Chen C, Lei W. [Dynamic detection of surface blood flow in rat heart and its application in real time identification of myocardial infarction model]. Zhonghua Yi Xue Za Zhi 2017; 97:1019-1023. [PMID: 28395422 DOI: 10.3760/cma.j.issn.0376-2491.2017.13.012] [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] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Objective: To establish a method for monitoring the surface blood flow in the heart of rats, and to clarify the relationship between the degree of myocardial infarction and the blood perfusion on the surface of the heart, so as to provide a new indicator for the identification of rat myocardial infarction model. Methods: The rats were divided into control group (n=23) and model group (n=107), the rat hearts were scanned by the laser doppler perfusion imager before and after operation respectively, and the data was analyzed to acquire the rate of surface blood flow change of the heart. Myocardial infarction size of model group was detected by NBT. Model group were divided into three subgroups of mild myocardial infarction, moderate myocardial infarction and severe myocardial infarction according to the myocardial infarction size, and an analysis was made on the correlativity between rate of surface blood flow change of the heart and myocardial infarction size. Results: Myocardial infarction size was highly correlated to the rate of surface blood flow change of the heart in model group (r=0.849 6, P<0.000 1). There was no significant correlation between infarction size and heart blood flow in the mild myocardial infarction subgroup (r=-0.133 6, P>0.05), while the correlation in moderate myocardial infarction was significant (r=0.721 7, P<0.000 1), and the highest correlation was shown in severe myocardial infarction subgroup (r=0.910 2, P<0.000 1). Conclusion: The heart surface blood flow has a close relationship with the myocardial infarction size in rat, so the change of heart blood perfusion can beused as an effective reference to establish and identify rat myocardial infarction model.
Collapse
Affiliation(s)
- Q Lei
- Cardiovascular Medicine Center, Affiliated Hospital of Guangdong Medical College, Zhanjiang 524001, China
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
27
|
Li P, Lv YH, Ma L, Yang SH, Xiang Y, Lei Q, Du GD, Huang DJ. [Research of the Epworth sleepiness scale based on ruzzy comprehensive evaluation]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2017; 31:356-360. [PMID: 29871261 DOI: 10.13201/j.issn.1001-1781.2017.05.007] [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] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Indexed: 11/12/2022]
Abstract
Objective:This research explores the effect of Epworth sleepiness scale (ESS) items on domestic patients. Method:Four thousand six hundred and thirty-three suspected OSAHS patients with snoring were selected from respiratory sleep center in the first people's hospital, Yunnan province, between January 2006 and December 2012. These patients filled in the ESS before PSG test. Firstly, these questionnaires were preprocessed, and the null and incorrect ones were deleted. Then, the fuzzy comprehensive evaluation was applied for the value of each item in ESS. Finally, the reliability was compared between before and after the removal of the lowest values.Result:Fuzzy comprehensive evaluation results show that the total value is 1.016, the item value of Sitting and talking to someone and In a car, while stopped for a few minutes in traffic is the lowest, which is 0.131. The result of reliability analysis shows that the value increases 0.2% after the two items being deleted.Conclusion:Some items of ESS are not suitable for Chinese patients, and they need to be deleted or modified to improve the screening efficiency.
Collapse
Affiliation(s)
- P Li
- Faculty of Information Engineering and Automation, Kunming University of Science and Technology, Kunming, 650500, China
| | - Y H Lv
- Department of Respiratory Medicine, the First People's Hospital of Yunnan Province
| | - L Ma
- Faculty of Information Engineering and Automation, Kunming University of Science and Technology, Kunming, 650500, China
| | - S H Yang
- Faculty of Information Engineering and Automation, Kunming University of Science and Technology, Kunming, 650500, China
| | - Y Xiang
- Faculty of Information Engineering and Automation, Kunming University of Science and Technology, Kunming, 650500, China
| | - Q Lei
- Faculty of Information Engineering and Automation, Kunming University of Science and Technology, Kunming, 650500, China
| | - G D Du
- Faculty of Information Engineering and Automation, Kunming University of Science and Technology, Kunming, 650500, China
| | - D J Huang
- Department of Respiratory Medicine, the First People's Hospital of Yunnan Province
| |
Collapse
|
28
|
Qin BW, Ying J, Lei Q, Qu PF, Lei FL, Li JM, Yan H. [Relationship between reproductive history and preterm births in the last pregnancy, in Shaanxi province]. Zhonghua Liu Xing Bing Xue Za Zhi 2017; 38:158-162. [PMID: 28231658 DOI: 10.3760/cma.j.issn.0254-6450.2017.02.005] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze the incidence of preterm delivery among single live neonates and the association between maternal reproductive history and preterm birth. Methods: A questionnaire survey was conducted on reproductive history among women at childbearing age who were selected through multi-stage stratified random sampling method in Shaanxi, during 2010-2013. Samples would include women at childbearing age and in pregnancy or having had definite pregnancy outcomes. Results: A total of 29 608 women at childbearing age with their infants, were studied. The overall incidence of premature delivery among the single live birth neonates under this study, was 2.7% during 2010-2013. Results from the logistic regression model showed that factors as: having had history with preterm delivery (OR=7.99, 95%CI: 5.59-11.43), age of the mothers, older than 35 (OR= 2.03, 95% CI: 1.59-2.59) and with history of birth defects (OR=1.54, 95% CI: 1.01-2.34) were at higher risks for premature delivery in neonates. Intervals on pregnancies between 3-4 years (compared with ≤2 years, OR=0.74, 95% CI: 0.58-0.93), between 5-6 years (compared with ≤2 years, OR=0.66, 95%CI: 0.52-0.82), or> 6 years (compared with ≤2 years, OR=0.48, 95%CI:0.37-0.61) together with numbers of parity as 1 (compared with primiparas, OR=0.80, 95%CI: 0.67-0.95), as ≥2 (compared with primiparas, OR=0.62, 95% CI: 0.39-0.97) etc. were protective factors to preterm delivery. Factors as: history of preterm delivery, mothers age (older than 35 years) and intervals of pregnancy, appeared influential to the age of gestation, under the ordinal polytomous logistic regression analysis. Conclusion: The incidence of preterm births among single live birth neonates in Shaanxi was lower than the average national level. Programs related to health care services prior to conception and during pregnancy, together with increasing the self-care consciousness of childbearing aged women etc, should all be strengthened in order to reduce the occurrence of preterm birth, in Shaanxi province.
Collapse
Affiliation(s)
- B W Qin
- Department of Epidemiology and Biostatistics, School of Public Health, Xi'an Jiaotong University, Xi'an 710061, China
| | - J Ying
- Department of Epidemiology and Biostatistics, School of Public Health, Xi'an Jiaotong University, Xi'an 710061, China
| | - Q Lei
- Department of Epidemiology and Biostatistics, School of Public Health, Xi'an Jiaotong University, Xi'an 710061, China
| | - P F Qu
- Department of Epidemiology and Biostatistics, School of Public Health, Xi'an Jiaotong University, Xi'an 710061, China
| | - F L Lei
- Department of Epidemiology and Biostatistics, School of Public Health, Xi'an Jiaotong University, Xi'an 710061, China
| | - J M Li
- Department of Epidemiology and Biostatistics, School of Public Health, Xi'an Jiaotong University, Xi'an 710061, China
| | - H Yan
- Health Science Center, Xi'an Jiaotong University, Xi'an 710061, China
| |
Collapse
|
29
|
Ying J, Lei Q, Qin BW, Qu PF, Lei FL, Dang SN, Zeng LX, Yan H. [Factors related to the influence on congenital malformation of body surface in Shaanxi province]. Zhonghua Liu Xing Bing Xue Za Zhi 2016; 37:1569-1573. [PMID: 27998400 DOI: 10.3760/cma.j.issn.0254-6450.2016.12.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the influencing factors on congenital malformation of body surface. Methods: Multi-stage stratified random sampling method was adopted. A questionnaire survey was conducted among the childbearing aged women who experienced more than 28 weeks pregnancy or having definite pregnancy outcomes in Shaanxi, during 2010-2013. Results: Results from the logistic regression model showed that factors as: intrahepatic cholestasis of pregnancy (OR=21.76, 95%CI: 4.46-106.25), histories with abnormal pregnancy or reproduction (OR=11.88, 95%CI: 9.14-15.45), having birth defects in the family (OR=6.15, 95%CI: 2.66-14.23), being twins (OR=5.74, 95% CI: 3.34-9.86), being worker (compared with others, OR=2.47, 95% CI: 1.30-4.68) or farmer (compared with others, OR=1.91, 95%CI: 1.14-3.20), less than 4 times of antenatal care (compared with >7, OR=1.84, 95% CI: 1.28-2.64), occupational exposure to related risks during pregnancy (OR=1.74, 95% CI: 1.26-2.42), mother's hometown was from mid-part of Shaanxi (compared with northern Shaanxi, OR=1.65, 95%CI: 1.20-2.28), mother's native residence was from the rural areas (OR=1.75, 95% CI: 1.13-2.71), drug use (OR=1.64, 95% CI: 1.26-2.13) etc. were risk factors for congenital malformation of body surface. Iron supplement during pregnancy (OR=0.46, 95%CI: 0.21-0.99) appeared as protective factor for congenital malformation of body surface. Conclusion: The following factors seemed to be of risk for congenital malformation of body surface, including: mother's native area was from the middle part of Shaanxi and living in rural area, being worker or farmer, histories of abnormal pregnancy and reproduction, history of birth defects in the family, being twins, with antenatal care less than 4 times, occupational exposure to dangerous materials, drug use, intrahepatic cholestasis during pregnancy etc.
Collapse
Affiliation(s)
- J Ying
- Department of Epidemiology and Biostatistics, Public Health School
| | - Q Lei
- Department of Epidemiology and Biostatistics, Public Health School
| | - B W Qin
- Department of Epidemiology and Biostatistics, Public Health School
| | - P F Qu
- Department of Epidemiology and Biostatistics, Public Health School
| | - F L Lei
- Department of Epidemiology and Biostatistics, Public Health School
| | - S N Dang
- Department of Epidemiology and Biostatistics, Public Health School
| | - L X Zeng
- Department of Epidemiology and Biostatistics, Public Health School
| | - H Yan
- Health Science Center, Xi'an Jiaotong University, Xi'an 710061, China
| |
Collapse
|
30
|
Lei Q, Liu X, Fu H, Sun Y, Wang L, Xu G, Wang W, Yu Z, Liu C, Li P, Feng J, Li G, Wu M. miR-101 reverses hypomethylation of the PRDM16 promoter to disrupt mitochondrial function in astrocytoma cells. Oncotarget 2016; 7:5007-22. [PMID: 26701852 PMCID: PMC4826261 DOI: 10.18632/oncotarget.6652] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2015] [Accepted: 12/05/2015] [Indexed: 01/17/2023] Open
Abstract
Our previous report identified PR domain containing 16 (PRDM16), a member of the PR-domain gene family, as a new methylation associated gene in astrocytoma cells. This previous study also reported that miR-101 is a tumor suppressor in glioma. The present study confirms that PRDM16 is a hypomethylated gene that can be overexpressed in astrocytoma patients and demonstrates that the hypomethylation status of the PRDM16 promoter can predict poor prognoses for astrocytoma patients. The results reported herein show that PRDM16 was inhibited by miR-101 directly and also through epigenetic regulation. PRDM16 was confirmed as a new target of miR-101 and shown to be directly inhibited by miR-101. miR-101 also decreased the expression of PRDM16 by altering the methylation status of the PRDM16 promoter. miR-101 was associated with a decrease in the methylation-related histones H3K4me2 and H3K27me3 and an increase in H3K9me3 and H4K20me3 on the PRDM16 promoter. In addition, EZH2, EED and DNMT3A were identified as direct targets of miR-101, and miR-101 suppressed PRDM16 expression by targeting DNMT3A which decreases histone H3K27me3 and H3K4me2 at the PRDM16 core promoter. The results reported here demonstrate that miR-101 disrupted cellular mitochondrial function and induced cellular apoptosis via the mitochondrial pathway; for example, MMP and ATP levels decreased, while there was an increase in ADP/ATP ratios and ROS levels, levels of cleaved Caspase-9 and cleaved-PARP, the Bax/Bcl-2 ratios, and Smac release from the mitochondria to the cytoplasm. Knockdown of PRDM16 reversed the anti-apoptotic effect of miR-101 inhibition. In summary, miR-101 reversed the hypomethylation of the PRDM16 promoter which suppressed the expression of PRDM16, disrupted cellular mitochondrial function, and induced cellular apoptosis.
Collapse
Affiliation(s)
- Qianqian Lei
- Hunan Provincial Tumor Hospital and The Affiliated Tumor Hospital of Xiangya Medical School, Central South University, Changsha 410013, Hunan, China.,Cancer Research Institute, School of Basic Medical Science, Central South University, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Key Laboratory of Carcinogenesis, Ministry of Health, Changsha 410078, Hunan, China
| | - Xiaoping Liu
- Department of Breast Oncology, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, Guangdong, China
| | - Haijuan Fu
- Cancer Research Institute, School of Basic Medical Science, Central South University, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Key Laboratory of Carcinogenesis, Ministry of Health, Changsha 410078, Hunan, China
| | - Yingnan Sun
- Hunan Provincial Tumor Hospital and The Affiliated Tumor Hospital of Xiangya Medical School, Central South University, Changsha 410013, Hunan, China.,Cancer Research Institute, School of Basic Medical Science, Central South University, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Key Laboratory of Carcinogenesis, Ministry of Health, Changsha 410078, Hunan, China
| | - Liping Wang
- Department of Oncology, The First Hospital of Chenzhou City, 423000, Hunan, China
| | - Gang Xu
- Cancer Research Institute, School of Basic Medical Science, Central South University, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Key Laboratory of Carcinogenesis, Ministry of Health, Changsha 410078, Hunan, China
| | - Wei Wang
- Cancer Research Institute, School of Basic Medical Science, Central South University, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Key Laboratory of Carcinogenesis, Ministry of Health, Changsha 410078, Hunan, China
| | - Zhibin Yu
- Cancer Research Institute, School of Basic Medical Science, Central South University, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Key Laboratory of Carcinogenesis, Ministry of Health, Changsha 410078, Hunan, China
| | - Changhong Liu
- Cancer Research Institute, School of Basic Medical Science, Central South University, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Key Laboratory of Carcinogenesis, Ministry of Health, Changsha 410078, Hunan, China
| | - Peiyao Li
- Cancer Research Institute, School of Basic Medical Science, Central South University, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Key Laboratory of Carcinogenesis, Ministry of Health, Changsha 410078, Hunan, China
| | - Jianbo Feng
- Cancer Research Institute, School of Basic Medical Science, Central South University, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Key Laboratory of Carcinogenesis, Ministry of Health, Changsha 410078, Hunan, China
| | - Guiyuan Li
- Hunan Provincial Tumor Hospital and The Affiliated Tumor Hospital of Xiangya Medical School, Central South University, Changsha 410013, Hunan, China.,Cancer Research Institute, School of Basic Medical Science, Central South University, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Key Laboratory of Carcinogenesis, Ministry of Health, Changsha 410078, Hunan, China
| | - Minghua Wu
- Cancer Research Institute, School of Basic Medical Science, Central South University, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Key Laboratory of Carcinogenesis, Ministry of Health, Changsha 410078, Hunan, China
| |
Collapse
|
31
|
Du GD, Ma L, Lv YH, Huang LH, Fan CY, Xiang Y, Lei Q, Hu R. [The relevance between obstructive sleep apnea hypopnea syndrome andchronic obstructive pulmonary disease in China: A Meta-analysis]. Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2016; 30:1620-1625. [PMID: 29871158 DOI: 10.13201/j.issn.1001-1781.2016.20.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Indexed: 06/08/2023]
Abstract
Objective:To assess the correlation between obstructive sleep apnea hypopnea syndrome(OSAHS) and chronic obstructive pulmonary disease(COPD).Method: Databases such as Chinese Biomedical Literature Database, PubMed, Chinese Academic Journals full-text database, Wanfang Resource Database and Chongqing VIP have been searched to collect literatures about the relationship between OSAHS and COPD. The literature in conference proceedings and certain unpublished articles were also manually retrieved. RCT conformed to the condition was evaluated according to the standards of literature assessment, and the data has been extracted. The RevMan5.3 software was applied to carry out the same Metaanalysis.Result: Totally 19 articles were included, and Metaanalysis reveal that overlap syndrome(OS) patient's apnea hypopnea index is significantly higher than those of OSAHS patients[WMD=7.56, 95%CI(4.19,10.94), P<0.01]; The LSaO₂ of OS patients is significantly lower than OSAHS patients[WMD=-10.50, 95%CI(-11.58, -6.08),P<0.01]; OS patients' FEV₁/FVC is significantly lower than COPD patients[WMD=4.65,95%CI(1.15,8.15),P<0.01].The results revealed that subgroup analysis according to the sample volume, age, body mass index(BMI) and FEV₁/FVC between OS patients and OSAHS patients has heterogeneity, but when analysis with the score of ESS the heterogeneity does not exist. Further, the subgroup analysis according to the sample volume, BMI, AHI,LSaO₂ and the time of Oxygen is lower than 90%(T90) those index between OS patients and COPD patients has heterogeneity, and the heterogeneity does not exist when subgroup is analyses with neck circumference. The funnel schema was nearly symmetry with little bias.Conclusion:The experimental results indicate that OSAHS is significantly related with COPD, and they may be the mutual risk factor for each other..
Collapse
Affiliation(s)
- G D Du
- Faculty of Information Engineering and Automation, Kunming University of Science and Technology, Kunming, 650500, China
| | - L Ma
- Faculty of Information Engineering and Automation, Kunming University of Science and Technology, Kunming, 650500, China
| | - Y H Lv
- Respiratory Medicine of First People's Hospital of Yunnan Province
| | - L H Huang
- Respiratory Medicine of First People's Hospital of Yunnan Province
| | - C Y Fan
- Respiratory Medicine of First People's Hospital of Yunnan Province
| | - Y Xiang
- Faculty of Information Engineering and Automation, Kunming University of Science and Technology, Kunming, 650500, China
| | - Q Lei
- Faculty of Information Engineering and Automation, Kunming University of Science and Technology, Kunming, 650500, China
| | - R Hu
- Faculty of Information Engineering and Automation, Kunming University of Science and Technology, Kunming, 650500, China
| |
Collapse
|
32
|
Bi J, Lei Q, Wan X, Wang X. MON-P040: Partial Enteral Nutrition Improves SIGA Level Via Activating JAK1/STAT6 Signaling in Mice. Clin Nutr 2016. [DOI: 10.1016/s0261-5614(16)30674-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
33
|
Lei Q, Bi J, Wang X, Li N. MON-P042: Glucagon-Like Peptide-2 Protects Impaired Intestinal Mucosal Barriers in a Mouse Model of Total Parenteral Nutrition. Clin Nutr 2016. [DOI: 10.1016/s0261-5614(16)30676-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
34
|
Zhou J, Wei XL, Lei Q. [The effects and clinical significance of gaseous molecules in tuberculosis]. Zhonghua Jie He He Hu Xi Za Zhi 2016; 39:736-738. [PMID: 27600428 DOI: 10.3760/cma.j.issn.1001-0939.2016.09.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
|
35
|
Zhang L, Li Y, Yang X, Wei J, Zhou S, Zhao Z, Cheng J, Duan H, Jia T, Lei Q, Huang J, Feng C. Characterization of Th17 and FoxP3(+) Treg Cells in Paediatric Psoriasis Patients. Scand J Immunol 2016; 83:174-80. [PMID: 26679087 DOI: 10.1111/sji.12404] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Accepted: 12/03/2015] [Indexed: 12/01/2022]
Abstract
Psoriasis is one of the most common inflammatory skin conditions affecting both children and adults. Growing evidence indicates that T-helper 17 (Th17) cells and CD4(+) CD25(+) regulatory T (Treg) cells play an important role in the pathogenesis of psoriasis. However, the relationship between Th17 and Treg cells and their dynamic variations in paediatric psoriasis remain unclear. In this study, we found that both Th17 and FoxP3(+) Treg cells and the ratio of Th17 to Treg cell frequency in the peripheral circulation were increased in patients with paediatric psoriasis and were positively correlated with the disease severity. The function of Treg to suppress CD4(+) CD25(-) T cell proliferation and IFN-γ secretion was impaired during the onset of psoriasis. After disease remission, both the Th17 and Treg cell frequencies were decreased, and the suppressive function of the Treg cells was obviously restored. However, neither Treg cells from the disease onset nor those after remission can regulate IL-17 secretion by CD4(+) T cells. These findings will further our understanding of the associations between Th17 and Treg cells in paediatric psoriasis and their influence on disease severity.
Collapse
Affiliation(s)
- L Zhang
- Department of Dermatology, Affiliated hospital of Academy of Military Medical Sciences, Beijing, China
| | - Y Li
- Department of Dermatology, Affiliated hospital of Academy of Military Medical Sciences, Beijing, China
| | - X Yang
- Department of Dermatology, Air Force General Hospital of Chinese PLA, Beijing, China
| | - J Wei
- Department of Dermatology, Affiliated hospital of Academy of Military Medical Sciences, Beijing, China
| | - S Zhou
- Department of Laser Medicine, Chinese PLA General Hospital, Beijing, China
| | - Z Zhao
- Department of Dermatology, Chinese PLA General Hospital, Beijing, China
| | - J Cheng
- Department of Dermatology, Beijing 302 hospital, Beijing, China
| | - H Duan
- Department of Dermatology, Beijing 302 hospital, Beijing, China
| | - T Jia
- The school of Chemistry and Molecular Biosciences, University of Queensland, St. Lucia, Qld, Australia
| | - Q Lei
- Department of Pediatrics, Affiliated hospital of Academy of Military Medical Sciences, Beijing, China
| | - J Huang
- Department of Ophthalmology, Affiliated hospital of Academy of Military Medical Sciences, Beijing, China
| | - C Feng
- Department of Pediatrics, Affiliated hospital of Academy of Military Medical Sciences, Beijing, China
| |
Collapse
|
36
|
Wang Z, Yang J, Xu G, Wang W, Liu C, Yang H, Yu Z, Lei Q, Xiao L, Xiong J, Zeng L, Xiang J, Ma J, Li G, Wu M. Targeting miR-381-NEFL axis sensitizes glioblastoma cells to temozolomide by regulating stemness factors and multidrug resistance factors. Oncotarget 2016; 6:3147-64. [PMID: 25605243 PMCID: PMC4413644 DOI: 10.18632/oncotarget.3061] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2014] [Accepted: 12/12/2014] [Indexed: 12/13/2022] Open
Abstract
MicroRNA-381 (miR-381) is a highly expressed onco-miRNA that is involved in malignant progression and has been suggested to be a good target for glioblastoma multiforme (GBM) therapy. In this study, we employed two-dimensional fluorescence differential gel electrophoresis (2-D DIGE) and MALDI–TOF/TOF-MS/MS to identify 27 differentially expressed proteins, including the significantly upregulated neurofilament light polypeptide (NEFL), in glioblastoma cells in which miR-381 expression was inhibited. We identified NEFL as a novel target molecule of miR-381 and a tumor suppressor gene. In human astrocytoma clinical specimens, NEFL was downregulated with increased levels of miR-381 expression. Either suppressing miR-381 or enforcing NEFL expression dramatically sensitized glioblastoma cells to temozolomide (TMZ), a promising chemotherapeutic agent for treating GBMs. The mechanism by which these cells were sensitized to TMZ was investigated by inhibiting various multidrug resistance factors (ABCG2, ABCC3, and ABCC5) and stemness factors (ALDH1, CD44, CKIT, KLF4, Nanog, Nestin, and SOX2). Our results further demonstrated that miR-381 overexpression reversed the viability of U251 cells exhibiting NEFL-mediated TMZ sensitivity. In addition, NEFL-siRNA also reversed the proliferation rate of U251 cells exhibiting locked nucleic acid (LNA)-anti-miR-381-mediated TMZ sensitivity. Overall, the miR-381-NEFL axis is important for TMZ resistance in GBM and may potentially serve as a novel therapeutic target for glioma.
Collapse
Affiliation(s)
- Zeyou Wang
- Hunan Provincial Tumor Hospital and the Affiliated Tumor Hospital of Xiangya Medical School, Central South University, Changsha, Hunan, China.,Cancer Research Institute, Central South University, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Key Laboratory of Carcinogenesis, Ministry of Health, Changsha, Hunan, China
| | - Jing Yang
- Cancer Research Institute, Central South University, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Key Laboratory of Carcinogenesis, Ministry of Health, Changsha, Hunan, China
| | - Gang Xu
- Cancer Research Institute, Central South University, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Key Laboratory of Carcinogenesis, Ministry of Health, Changsha, Hunan, China
| | - Wei Wang
- Cancer Research Institute, Central South University, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Key Laboratory of Carcinogenesis, Ministry of Health, Changsha, Hunan, China
| | - Changhong Liu
- Cancer Research Institute, Central South University, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Key Laboratory of Carcinogenesis, Ministry of Health, Changsha, Hunan, China
| | - Honghui Yang
- Cancer Research Institute, Central South University, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Key Laboratory of Carcinogenesis, Ministry of Health, Changsha, Hunan, China
| | - Zhibin Yu
- Cancer Research Institute, Central South University, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Key Laboratory of Carcinogenesis, Ministry of Health, Changsha, Hunan, China
| | - Qianqian Lei
- Cancer Research Institute, Central South University, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Key Laboratory of Carcinogenesis, Ministry of Health, Changsha, Hunan, China
| | - Lan Xiao
- Cancer Research Institute, Central South University, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Key Laboratory of Carcinogenesis, Ministry of Health, Changsha, Hunan, China
| | - Jing Xiong
- Cancer Research Institute, Central South University, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Key Laboratory of Carcinogenesis, Ministry of Health, Changsha, Hunan, China.,Department of Ophthalmology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Liang Zeng
- Hunan Provincial Tumor Hospital and the Affiliated Tumor Hospital of Xiangya Medical School, Central South University, Changsha, Hunan, China
| | - Juanjuan Xiang
- Hunan Provincial Tumor Hospital and the Affiliated Tumor Hospital of Xiangya Medical School, Central South University, Changsha, Hunan, China.,Cancer Research Institute, Central South University, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Key Laboratory of Carcinogenesis, Ministry of Health, Changsha, Hunan, China
| | - Jian Ma
- Hunan Provincial Tumor Hospital and the Affiliated Tumor Hospital of Xiangya Medical School, Central South University, Changsha, Hunan, China.,Cancer Research Institute, Central South University, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Key Laboratory of Carcinogenesis, Ministry of Health, Changsha, Hunan, China
| | - Guiyuan Li
- Hunan Provincial Tumor Hospital and the Affiliated Tumor Hospital of Xiangya Medical School, Central South University, Changsha, Hunan, China.,Cancer Research Institute, Central South University, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Key Laboratory of Carcinogenesis, Ministry of Health, Changsha, Hunan, China
| | - Minghua Wu
- Hunan Provincial Tumor Hospital and the Affiliated Tumor Hospital of Xiangya Medical School, Central South University, Changsha, Hunan, China.,Cancer Research Institute, Central South University, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Key Laboratory of Carcinogenesis, Ministry of Health, Changsha, Hunan, China
| |
Collapse
|
37
|
Castles F, Isakov D, Lui A, Lei Q, Dancer CEJ, Wang Y, Janurudin JM, Speller SC, Grovenor CRM, Grant PS. Microwave dielectric characterisation of 3D-printed BaTiO3/ABS polymer composites. Sci Rep 2016; 6:22714. [PMID: 26940381 PMCID: PMC4778131 DOI: 10.1038/srep22714] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Accepted: 02/22/2016] [Indexed: 11/17/2022] Open
Abstract
3D printing is used extensively in product prototyping and continues to emerge as a viable option for the direct manufacture of final parts. It is known that dielectric materials with relatively high real permittivity—which are required in important technology sectors such as electronics and communications—may be 3D printed using a variety of techniques. Among these, the fused deposition of polymer composites is particularly straightforward but the range of dielectric permittivities available through commercial feedstock materials is limited. Here we report on the fabrication of a series of composites composed of various loadings of BaTiO3 microparticles in the polymer acrylonitrile butadiene styrene (ABS), which may be used with a commercial desktop 3D printer to produce printed parts containing user-defined regions with high permittivity. The microwave dielectric properties of printed parts with BaTiO3 loadings up to 70 wt% were characterised using a 15 GHz split post dielectric resonator and had real relative permittivities in the range 2.6–8.7 and loss tangents in the range 0.005–0.027. Permittivities were reproducible over the entire process, and matched those of bulk unprinted materials, to within ~1%, suggesting that the technique may be employed as a viable manufacturing process for dielectric composites.
Collapse
Affiliation(s)
- F Castles
- Department of Materials, University of Oxford, Parks Road, Oxford OX1 3PH, United Kingdom
| | - D Isakov
- Department of Materials, University of Oxford, Parks Road, Oxford OX1 3PH, United Kingdom
| | - A Lui
- Department of Materials, University of Oxford, Parks Road, Oxford OX1 3PH, United Kingdom
| | - Q Lei
- Department of Materials, University of Oxford, Parks Road, Oxford OX1 3PH, United Kingdom
| | - C E J Dancer
- Department of Materials, University of Oxford, Parks Road, Oxford OX1 3PH, United Kingdom.,International Institute for Nanocomposites Manufacturing (IINM), Warwick Manufacturing Group, University of Warwick, Coventry, CV4 7AL, United Kingdom
| | - Y Wang
- Department of Materials, University of Oxford, Parks Road, Oxford OX1 3PH, United Kingdom
| | - J M Janurudin
- Department of Materials, University of Oxford, Parks Road, Oxford OX1 3PH, United Kingdom
| | - S C Speller
- Department of Materials, University of Oxford, Parks Road, Oxford OX1 3PH, United Kingdom
| | - C R M Grovenor
- Department of Materials, University of Oxford, Parks Road, Oxford OX1 3PH, United Kingdom
| | - P S Grant
- Department of Materials, University of Oxford, Parks Road, Oxford OX1 3PH, United Kingdom
| |
Collapse
|
38
|
Zeng L, Tan J, Lu T, Lei Q, Chen C, Hu Z. Small heat shock proteins and the endoplasmic reticulum: potential attractive therapeutic targets? Curr Mol Med 2015; 15:38-46. [PMID: 25601467 DOI: 10.2174/1566524015666150114111745] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2014] [Revised: 09/16/2014] [Accepted: 10/24/2014] [Indexed: 11/22/2022]
Abstract
The endoplasmic reticulum(ER) is crucial for protein and lipid synthesis, folding and cellular homeostasis. Function impairment of ER would induce ER stress, which might play an important role in many different pathological states. Small heat shock proteins (sHsps) are known to be widely expressed throughout many tissues. SHsps are found to regulate many different pathological and pathophysiological processes and they are supposed to be potential therapeutic targets. Recent studies indicate that multiple sHsps localize to the mammalian and plant ER and sHsps confer protection against ER stress in multiple cellular processes. The mechanisms responsible for the cytoprotective effects of sHsps are related to maintaining ER homeostasis. Improved understanding of sHsps-related cytoprotective action on ER and successful strategies which could specifically target components of ER stress signalling responses amelioration of their toxic effects by sHsps is of great importance in the development of therapeutic approach for the disorders induced by dysfunction of ER.
Collapse
Affiliation(s)
| | | | | | | | | | - Z Hu
- Department of Neurology, The Second Xiangya Hospital, Central South University, Changsha, 410011 Hunan, People's Republic of China.
| |
Collapse
|
39
|
Grant PS, Castles F, Lei Q, Wang Y, Janurudin JM, Isakov D, Speller S, Dancer C, Grovenor CRM. Manufacture of electrical and magnetic graded and anisotropic materials for novel manipulations of microwaves. Philos Trans A Math Phys Eng Sci 2015. [PMID: 26217051 PMCID: PMC4528831 DOI: 10.1098/rsta.2014.0353] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Spatial transformations (ST) provide a design framework to generate a required spatial distribution of electrical and magnetic properties of materials to effect manipulations of electromagnetic waves. To obtain the electromagnetic properties required by these designs, the most common materials approach has involved periodic arrays of metal-containing subwavelength elements. While aspects of ST theory have been confirmed using these structures, they are often disadvantaged by narrowband operation, high losses and difficulties in implementation. An all-dielectric approach involves weaker interactions with applied fields, but may offer more flexibility for practical implementation. This paper investigates manufacturing approaches to produce composite materials that may be conveniently arranged spatially, according to ST-based designs. A key aim is to highlight the limitations and possibilities of various manufacturing approaches, to constrain designs to those that may be achievable. The article focuses on polymer-based nano- and microcomposites in which interactions with microwaves are achieved by loading the polymers with high-permittivity and high-permeability particles, and manufacturing approaches based on spray deposition, extrusion, casting and additive manufacture.
Collapse
Affiliation(s)
- P S Grant
- Department of Materials, University of Oxford, Parks Road, Oxford OX1 3PH, UK
| | - F Castles
- Department of Materials, University of Oxford, Parks Road, Oxford OX1 3PH, UK
| | - Q Lei
- Department of Materials, University of Oxford, Parks Road, Oxford OX1 3PH, UK
| | - Y Wang
- Department of Materials, University of Oxford, Parks Road, Oxford OX1 3PH, UK
| | - J M Janurudin
- Department of Materials, University of Oxford, Parks Road, Oxford OX1 3PH, UK
| | - D Isakov
- Department of Materials, University of Oxford, Parks Road, Oxford OX1 3PH, UK
| | - S Speller
- Department of Materials, University of Oxford, Parks Road, Oxford OX1 3PH, UK
| | - C Dancer
- Department of Materials, University of Oxford, Parks Road, Oxford OX1 3PH, UK International Institute for Nanocomposites Manufacturing, WMG, University of Warwick, Coventry CV4 7AL, UK
| | - C R M Grovenor
- Department of Materials, University of Oxford, Parks Road, Oxford OX1 3PH, UK
| |
Collapse
|
40
|
Liu X, Lei Q, Yu Z, Xu G, Tang H, Wang W, Wang Z, Li G, Wu M. MiR-101 reverses the hypomethylation of the LMO3 promoter in glioma cells. Oncotarget 2015; 6:7930-43. [PMID: 25829251 PMCID: PMC4480726 DOI: 10.18632/oncotarget.3181] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2014] [Accepted: 01/23/2015] [Indexed: 01/09/2023] Open
Abstract
LIM-only protein 3 (LMO3), a member of the LIM-only protein group, is a new DNA methylation gene that was identified in gliomas via the MeDIP-Chip in our previous study. In this study, we found that LIM-only protein 3 (LMO3) is hypomethylated and overexpressed in glioma cells and tissues. The overexpression of LMO3 was correlated with a poor prognosis in glioma patients, and LMO3 was indirectly inhibited by the tumor suppressor miR-101, which is a potential prognosis marker of gliomas. MiR-101 decreased the expression of LMO3 by reversing the methylation status of the LMO3 promoter and by inhibiting the presence of the methylation-related histones H3K4me2 and H3K27me3 and increasing the presence of H3K9me3 and H4K20me3 on the promoter. It was determined that miR-101 decreases the occupancy of H3K27me3 by inhibiting EZH2, DNMT3A and EED and decreases the H3K9me3 occupancy on the LMO3 promoter via SUV39H1, SUV39H2, G9a and PHF8. Furthermore, miR-101 suppresses the expression of LMO3 by decreasing USF and MZF1.
Collapse
Affiliation(s)
- Xiaoping Liu
- 1 Hunan Provincial Tumor Hospital and the Affiliated Tumor Hospital of Xiangya Medical School, Central South University, Changsha 410013, Hunan, China,2 Department of Breast Oncology, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, Guangdong, China
| | - Qianqian Lei
- 1 Hunan Provincial Tumor Hospital and the Affiliated Tumor Hospital of Xiangya Medical School, Central South University, Changsha 410013, Hunan, China
| | - Zhibin Yu
- 1 Hunan Provincial Tumor Hospital and the Affiliated Tumor Hospital of Xiangya Medical School, Central South University, Changsha 410013, Hunan, China
| | - Gang Xu
- 1 Hunan Provincial Tumor Hospital and the Affiliated Tumor Hospital of Xiangya Medical School, Central South University, Changsha 410013, Hunan, China,4 Medical College, University of South China, Hengyang 421001, Hunan, China
| | - Hailin Tang
- 2 Department of Breast Oncology, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, Guangdong, China
| | - Wei Wang
- 1 Hunan Provincial Tumor Hospital and the Affiliated Tumor Hospital of Xiangya Medical School, Central South University, Changsha 410013, Hunan, China
| | - Zeyou Wang
- 1 Hunan Provincial Tumor Hospital and the Affiliated Tumor Hospital of Xiangya Medical School, Central South University, Changsha 410013, Hunan, China
| | - Guiyuan Li
- 1 Hunan Provincial Tumor Hospital and the Affiliated Tumor Hospital of Xiangya Medical School, Central South University, Changsha 410013, Hunan, China,3 School of Basic Medical Science, Cancer Research Institute, Central South University, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Key Laboratory of Carcinogenesis, Ministry of Health, Changsha 410078, Hunan, China
| | - Minghua Wu
- 1 Hunan Provincial Tumor Hospital and the Affiliated Tumor Hospital of Xiangya Medical School, Central South University, Changsha 410013, Hunan, China,3 School of Basic Medical Science, Cancer Research Institute, Central South University, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Key Laboratory of Carcinogenesis, Ministry of Health, Changsha 410078, Hunan, China
| |
Collapse
|
41
|
|
42
|
Lei Q, Reeves A. Lower in Contrast, Higher in Numerosity. J Vis 2014. [DOI: 10.1167/14.10.998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
|
43
|
She X, Yu Z, Cui Y, Lei Q, Wang Z, Xu G, Xiang J, Wu M, Li G. miR-128 and miR-149 enhance the chemosensitivity of temozolomide by Rap1B-mediated cytoskeletal remodeling in glioblastoma. Oncol Rep 2014; 32:957-64. [PMID: 25017996 DOI: 10.3892/or.2014.3318] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2014] [Accepted: 05/21/2014] [Indexed: 11/06/2022] Open
Abstract
Glioblastoma multiforme (GBM) is one of the most deadly diseases affecting humans, and is often characterized by poor survival and by high resistance to chemotherapy and radiotherapy. Temozolomide (TMZ) is an oral alkylating agent which is widely used in the treatment of GBM following surgery. Although TMZ may restrain GBM growth, TMZ resistance is also common and accounts for numerous cases of treatment failure. Studies indicate that aberrant miRNA expression is associated with hallmark malignant properties of GBM. Thus, miRNA-based anticancer therapeutic approaches have been exploited, either alone or in combination with standard targeted therapies to enhance the efficacy of chemotherapy agents. In the present study, we demonstrated that the expression of miR-128 and miR-149 was downregulated in glioblastoma, and their overexpression inhibited the invasion of glioblastoma cells by targeting Rap1B-mediated cytoskeletal and related molecular alterations. Moreover, miR-128 and miR-149 enhanced the chemosensitivity of glioblastoma cells to TMZ.
Collapse
Affiliation(s)
- Xiaoling She
- Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, P.R. China
| | - Zhibin Yu
- Hunan Cancer Hospital and the Affiliated Tumor Hospital of Xiangya Medical School, Cancer Research Institute, Central South University, Changsha, Hunan 410013, P.R. China
| | - Yulong Cui
- Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, P.R. China
| | - Qianqian Lei
- Hunan Cancer Hospital and the Affiliated Tumor Hospital of Xiangya Medical School, Cancer Research Institute, Central South University, Changsha, Hunan 410013, P.R. China
| | - Zeyou Wang
- Hunan Cancer Hospital and the Affiliated Tumor Hospital of Xiangya Medical School, Cancer Research Institute, Central South University, Changsha, Hunan 410013, P.R. China
| | - Gang Xu
- Hunan Cancer Hospital and the Affiliated Tumor Hospital of Xiangya Medical School, Cancer Research Institute, Central South University, Changsha, Hunan 410013, P.R. China
| | - Juanjuan Xiang
- Hunan Cancer Hospital and the Affiliated Tumor Hospital of Xiangya Medical School, Cancer Research Institute, Central South University, Changsha, Hunan 410013, P.R. China
| | - Minghua Wu
- Hunan Cancer Hospital and the Affiliated Tumor Hospital of Xiangya Medical School, Cancer Research Institute, Central South University, Changsha, Hunan 410013, P.R. China
| | - Guiyuan Li
- Hunan Cancer Hospital and the Affiliated Tumor Hospital of Xiangya Medical School, Cancer Research Institute, Central South University, Changsha, Hunan 410013, P.R. China
| |
Collapse
|
44
|
Lei Q, Peng WN, You H, Hu ZP, Lu W. Statins in nervous system-associated diseases: angels or devils? Pharmazie 2014; 69:448-454. [PMID: 24974580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Statins are commonly prescribed lipid-lowering medications that significantly reduce the risk of cardiovascular events. In addition to their ability to lower cholesterol by affecting the rate-limiting step in cholesterol biosynthesis, statins also have anti-inflammatory, immunomodulatory, antioxidant, antiapoptotic, and antiplatelet effects. Because of these pleiotropic abilities, statins may have some beneficial effects on neurologic diseases, including cerebrovascular disease, neurodegenerative disease, multiple sclerosis, and brain tumors. Although statins are a well-tolerated class of drugs, they also have potential adverse effects (AEs). A growing body of evidence indicates that statins may have potential negative effects on nervous system-associated diseases, including myopathies, peripheral neuropathy, intracerebral hemorrhage (ICH), and other diseases of the central nervous system (e.g., cognitive impairment, depression, sleep disorders, nightmare, and headache). Clinicians, especially neurologists, should be aware of the potential risk of neuropathy in patients who take statins.
Collapse
|
45
|
|
46
|
Qiu W, Li Z, Xiao Z, Gong S, Lei Q. Sphericizing tungsten particles by means of localized preferential oxidation and alkaline washing. POWDER TECHNOL 2012. [DOI: 10.1016/j.powtec.2012.05.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
47
|
|
48
|
Boatright WL, Lei Q, Jahan MS. Effect of moisture, lipids, and select amino acid blocking agents on the formation and stability of metastable radicals in powdered soy proteins. J Food Sci 2012; 77:C620-6. [PMID: 22625876 DOI: 10.1111/j.1750-3841.2012.02722.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
UNLABELLED Incremental increases in the moisture content of powdered soy protein products from 4.4% to 13.4% produced an inverse effect on the ability of soy proteins to maintain metastable free radicals. The corresponding reduction in electron paramagnetic resonance signal was not due to dielectric loss in the range of moisture contents examined. Subsequent evaluations of various treatments were conducted after drying soy proteins with molecular sieve to a water activity below 0.085 in order to minimize the influence from variations in moisture. Isolated soy protein (ISP) samples, prepared with "defatted flour" that had been further extracted with chloroform/methanol (2: 1), had a 96% reduction in total lipids compared to the control ISP samples. The initial rate of radical accumulation in the "reduced-lipid" ISP for the first 3 wk was not significantly different from the initial rate of radical increases in the control ISP. After 3 wk, radical accumulation in the "reduced-lipid" ISP continued to increase, but at a rate that was less than the control. These findings indicate that the initial reactions contributing to the formation of metastable radicals in the powdered ISP are not strongly dependent on associated lipids. Blocking sulfhydryl groups during ISP preparation with N-ethylmaleimide did not significantly slow the rate of radical accumulation compared to the control ISP. Blocking arginine residues in ISP samples with phenylglyoxal caused an increased rate of radical accumulation for the first 4 wk. PRACTICAL APPLICATION Levels of metastable radicals in powdered soy protein products typically range from 10 to 100 times greater than the free radicals in other food protein sources. This current research examines various compositional and treatment parameters that might be used to minimize the content of free radicals in foods containing soy proteins.
Collapse
Affiliation(s)
- W L Boatright
- Dept. of Animal and Food Sciences, Univ of Kentucky, 412 WP Garrigus Building, Lexington, KY 40546-0215, USA.
| | | | | |
Collapse
|
49
|
Lei Q, Lv LJ, Zhang BY, Wen JY, Liu GC, Lin XH, Niu JM. Ante-partum and post-partum markers of metabolic syndrome in pre-eclampsia. J Hum Hypertens 2010; 25:11-7. [DOI: 10.1038/jhh.2010.29] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
50
|
Deng L, Chen N, Li Y, Zheng H, Lei Q. CXCR6/CXCL16 functions as a regulator in metastasis and progression of cancer. Biochim Biophys Acta Rev Cancer 2010; 1806:42-9. [PMID: 20122997 DOI: 10.1016/j.bbcan.2010.01.004] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2009] [Revised: 01/12/2010] [Accepted: 01/24/2010] [Indexed: 02/05/2023]
Abstract
Metastasis is considered the obvious mark for most aggressive cancers. However, little is known about the molecular mechanism of the regulation of cancer metastasis. Recent evidence increasingly suggests that the interaction between chemokines and chemokine receptors is pivotal in the process of metastasis. The chemokine receptor CXCR4 and its ligand CXCL12, for example, have been reported to play a vital role in cancer metastasis. Another chemokine and chemokine receptor pair, the CXCL16/CXCR6 axis, has been studied by several independent research groups. Here, we summarize recent advances in our knowledge of the function of CXC chemokine receptor CXCR6 and its ligand CXCL16 in regulating metastasis and invasion of cancer. CXCR6 and CXCL16 are up-regulated in multiple cancer tissue types and cancer cell lines relative to normal tissues and cell lines. In addition, both CXCR6 and CXCL16 levels increase as tumor malignancy increases. Trans-membranous CXCL16 chemokine reduces proliferation while soluble CXCL16 chemokine enhances proliferation and migration. TM-CXCL16 functions as an inducer for lymphocyte build-up around tumor sites. High trans-membranous CXCL16 expression correlates with a good prognosis. Moreover, the Akt/mTOR signal pathway is involved in activating the CXCR6/CXCL16 axis. These findings suggest multiple opportunities for blocking the CXCR6/CXCL16 axis and the Akt/mTOR signal pathway in novel cancer therapies.
Collapse
Affiliation(s)
- Ling Deng
- Department of Radiation Oncology, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital/West China School of Medicine, Sichuan University, Chengdu, Sichuan, China
| | | | | | | | | |
Collapse
|