251
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Lin Y, Zhou X, Yang K, Chen Y, Wang L, Luo W, Li Y, Liao J, Zhou Y, Lei Y, Zhang Y, Wu D, Cai L. Protein tyrosine phosphatase receptor type D gene promotes radiosensitivity via STAT3 dephosphorylation in nasopharyngeal carcinoma. Oncogene 2021; 40:3101-3117. [PMID: 33824475 PMCID: PMC8084736 DOI: 10.1038/s41388-021-01768-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Revised: 03/09/2021] [Accepted: 03/23/2021] [Indexed: 01/07/2023]
Abstract
Radiotherapy is essential to the treatment of nasopharyngeal carcinoma (NPC) and acquired or innate resistance to this therapeutic modality is a major clinical problem. However, the underlying molecular mechanisms in the radiation resistance in NPC are not fully understood. Here, we reanalyzed the microarray data from public databases and identified the protein tyrosine phosphatase receptor type D (PTPRD) as a candidate gene. We found that PTPRD was downregulated in clinical NPC tissues and NPC cell lines with its promoter hypermethylated. Functional assays revealed that PTPRD overexpression sensitized NPC to radiation in vitro and in vivo. Importantly, miR-454-3p directly targets PTPRD to inhibit its expression and biological effect. Interestingly, mechanistic analyses indicate that PTPRD directly dephosphorylates STAT3 to enhance Autophagy-Related 5 (ATG5) transcription, resulting in triggering radiation-induced autophagy. The immunohistochemical staining of 107 NPC revealed that low PTPRD and high p-STAT3 levels predicted poor clinical outcome. Overall, we showed that PTPRD promotes radiosensitivity by triggering radiation-induced autophagy via the dephosphorylation of STAT3, thus providing a potentially useful predictive biomarker for NPC radiosensitivity and drug target for NPC radiosensitization.
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Affiliation(s)
- Yanling Lin
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Xiaohan Zhou
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Kaifan Yang
- Division of Spine Surgery, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yuting Chen
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Lingzhi Wang
- First Clinical Medical College, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Wenxiao Luo
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yujiang Li
- Department of Thoracic and Cardiovascular Surgery/Huiqiao Medical Center, Southern Medical University, Guangzhou, China.,Department of Thoracic and Cardiovascular Surgery, Affiliated Dongguan People's Hospital, Southern Medical University (Dongguan People's Hospital), Dongguan, China
| | - Jinrong Liao
- Second Clinical Medical College, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Yingtong Zhou
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yiming Lei
- First Clinical Medical College, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yanting Zhang
- First Clinical Medical College, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Dehua Wu
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, China.
| | - Longmei Cai
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, China.
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252
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Mayo V, Bowles AC, Wubker LE, Ortiz I, Cordoves AM, Cote RJ, Correa D, Agarwal A. Human-derived osteoblast-like cells and pericyte-like cells induce distinct metastatic phenotypes in primary breast cancer cells. Exp Biol Med (Maywood) 2021; 246:971-985. [PMID: 33210551 PMCID: PMC8024509 DOI: 10.1177/1535370220971599] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Accepted: 10/15/2020] [Indexed: 02/06/2023] Open
Abstract
Approximately 70% of advanced breast cancer patients will develop bone metastases, which accounts for ∼90% of cancer-related mortality. Breast cancer circulating tumor cells (CTCs) establish metastatic tumors in the bone after a close interaction with local bone marrow cells including pericytes and osteoblasts, both related to resident mesenchymal stem/stromal cells (BM-MSCs) progenitors. In vitro recapitulation of the critical cellular players of the bone microenvironment and infiltrating CTCs could provide new insights into their cross-talk during the metastatic cascade, helping in the development of novel therapeutic strategies. Human BM-MSCs were isolated and fractionated according to CD146 presence. CD146+ cells were utilized as pericyte-like cells (PLCs) given the high expression of the marker in perivascular cells, while CD146- cells were induced into an osteogenic phenotype generating osteoblast-like cells (OLCs). Transwell migration assays were performed to establish whether primary breast cancer cells (3384T) were attracted to OLC. Furthermore, proliferation of 3384T breast cancer cells was assessed in the presence of PLC- and OLC-derived conditioned media. Additionally, conditioned media cultures as well as transwell co-cultures of each OLCs and PLCs were performed with 3384T breast cancer cells for gene expression interrogation assessing their induced transcriptional changes with an emphasis on metastatic potential. PLC as well as their conditioned media increased motility and invasion potential of 3384T breast cancer cells, while OLC induced a dormant phenotype, downregulating invasiveness markers related with migration and proliferation. Altogether, these results indicate that PLC distinctively drive 3384T cancer cells to an invasive and migratory phenotype, while OLC induce a quiescence state, thus recapitulating the different phases of the in vivo bone metastatic process. These data show that phenotypic responses from metastasizing cancer cells are influenced by neighboring cells at the bone metastatic niche during the establishment of secondary metastatic tumors.
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Affiliation(s)
- Vera Mayo
- Department of Biomedical Engineering, DJTMF Biomedical Nanotechnology Institute, University of Miami, Miami, FL 33146, USA
| | - Annie C Bowles
- Department of Biomedical Engineering, DJTMF Biomedical Nanotechnology Institute, University of Miami, Miami, FL 33146, USA
- Department of Orthopedics, UHealth Sports Medicine Institute, University of Miami, Miller School of Medicine, Miami, FL 33136, USA
- Diabetes Research Institute & Cell Transplant Center, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Laura E Wubker
- Department of Biomedical Engineering, DJTMF Biomedical Nanotechnology Institute, University of Miami, Miami, FL 33146, USA
| | - Ismael Ortiz
- Department of Biomedical Engineering, DJTMF Biomedical Nanotechnology Institute, University of Miami, Miami, FL 33146, USA
| | - Albert M Cordoves
- Department of Biomedical Engineering, DJTMF Biomedical Nanotechnology Institute, University of Miami, Miami, FL 33146, USA
| | - Richard J Cote
- Department of Pathology and Immunology, Washington University in St. Louis School of Medicine, St Louis, MO 63110, USA
| | - Diego Correa
- Department of Orthopedics, UHealth Sports Medicine Institute, University of Miami, Miller School of Medicine, Miami, FL 33136, USA
- Diabetes Research Institute & Cell Transplant Center, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Ashutosh Agarwal
- Department of Biomedical Engineering, DJTMF Biomedical Nanotechnology Institute, University of Miami, Miami, FL 33146, USA
- Diabetes Research Institute & Cell Transplant Center, University of Miami Miller School of Medicine, Miami, FL 33136, USA
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253
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Tao Z, Bing-Qiang H, Huiling L, Hongbin S, Pengfei Y, Hongsheng D. 18F-FDG-PET/CT Whole-Body Imaging Lung Tumor Diagnostic Model: An Ensemble E-ResNet-NRC with Divided Sample Space. Biomed Res Int 2021; 2021:8865237. [PMID: 33869635 DOI: 10.1155/2021/8865237] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/13/2020] [Revised: 11/03/2020] [Accepted: 02/25/2021] [Indexed: 11/17/2022]
Abstract
Under the background of 18F-FDG-PET/CT multimodal whole-body imaging for lung tumor diagnosis, for the problems of network degradation and high dimension features during convolutional neural network (CNN) training, beginning with the perspective of dividing sample space, an E-ResNet-NRC (ensemble ResNet nonnegative representation classifier) model is proposed in this paper. The model includes the following steps: (1) Parameters of a pretrained ResNet model are initialized using transfer learning. (2) Samples are divided into three different sample spaces (CT, PET, and PET/CT) based on the differences in multimodal medical images PET/CT, and ROI of the lesion was extracted. (3) The ResNet neural network was used to extract ROI features and obtain feature vectors. (4) Individual classifier ResNet-NRC was constructed with nonnegative representation NRC at a fully connected layer. (5) Ensemble classifier E-ResNet-NRC was constructed using the “relative majority voting method.” Finally, two network models, AlexNet and ResNet-50, and three classification algorithms, nearest neighbor classification algorithm (NNC), softmax, and nonnegative representation classification algorithm (NRC), were combined to compare with the E-ResNet-NRC model in this paper. The experimental results show that the overall classification performance of the Ensemble E-ResNet-NRC model is better than the individual ResNet-NRC, and specificity and sensitivity are more higher; the E-ResNet-NRC has better robustness and generalization ability.
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254
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Jiang L, Xie X, Ding F, Mei J, Bi R. Silencing LINC00511 inhibits cell proliferation, migration, and epithelial-mesenchymal transition via the PTEN-AKT-FOXO1 signaling pathway in lung cancer. Biochem Cell Biol 2021; 99:1-8. [PMID: 31415720 DOI: 10.1139/bcb-2018-0364] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Affiliation(s)
- Lianyong Jiang
- Department of Cardiothoracic Surgery, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200092, P.R. China
| | - Xiao Xie
- Department of Cardiothoracic Surgery, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200092, P.R. China
| | - Fangbao Ding
- Department of Cardiothoracic Surgery, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200092, P.R. China.,Department of Cardiothoracic Surgery, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200092, P.R. China
| | - Ju Mei
- Department of Cardiothoracic Surgery, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200092, P.R. China.,Department of Cardiothoracic Surgery, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200092, P.R. China
| | - Rui Bi
- Department of Cardiothoracic Surgery, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200092, P.R. China.,Department of Cardiothoracic Surgery, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200092, P.R. China
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255
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Pérez-Sayáns M, Chamorro-Petronacci CM, Baltazar F, Pires FR, Ínsua Á, Suárez-Quintanilla JA, Suárez-Peñaranda JM. Nestin Expression Is Associated with Relapses in Head and Neck Lesions. Diagnostics (Basel) 2021; 11:583. [PMID: 33805026 DOI: 10.3390/diagnostics11040583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 03/10/2021] [Accepted: 03/21/2021] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND The aim was to investigate the clinical significance of nestin immunohistochemical expression in head and neck area lesions and to study its role in patient survival and recurrence. METHODS 39 (44.3%) nasosinus, 37 (42%) major salivary gland (6 submandibular and 31 parotid) and 12 (13.6%) oral cavity lesions of paraffin-embedded samples were retrospectively included. RESULTS The expression was categorized into grades, negative for 55 (62.5%) cases, grade 1 in 10 cases (11.4%), grade 2 in 12 cases (13.6%), and grade 3 in 11 cases (12.5%); 100% of pleomorphic adenomas were positive for nestin with grade 3 intensity, 100% of polyps and inverted papillomas were negative (p < 0.001). The lowest estimate of disease-free-survival (DFS) was for grade 1 expression, with 50 months, confidence interval (CI): 95% 13.3-23.9 months and the highest for grade 3 expression, 167.9 months (CI: 95% 32.1-105 months; Log-Rank = 14.846, p = 0.002). ROC (receiver operating characteristic) curves revealed that the positivity for nestin (+/-) in relation to malignancy, presented a sensitivity of 50.98%, a specificity of 81.08%, with an area under the curve of 0.667 (p = 0.009). CONCLUSIONS Nestin could be a useful marker to detect the presence of stem cells in head and neck tumors that have a role in tumor initiation and progression.
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256
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Zhu J, Zhang X, Wen B, Chen J, Lu Y, Xu W. Diethylhexyl phthalate (DEHP) regulates the proliferation and chemosensitivity of esophageal squamous cell carcinoma cells via regulation of PTEN. Hum Cell 2021; 34:1153-1162. [PMID: 33721218 DOI: 10.1007/s13577-021-00519-x] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2021] [Accepted: 03/09/2021] [Indexed: 11/30/2022]
Abstract
As one of the most prevalent and deadly cancers worldwide, esophageal squamous cell carcinoma (ESCC) can be directly exposed to endocrine-disrupting chemical (EDC). As a potential EDC, diethylhexyl phthalate (DEHP) can trigger the development of various cancers, while the potential effect of DEHP on the ESCC progression was not clear. Our present study revealed that DEHP can trigger the proliferation of ESCC cells and decrease the cisplatin (CDDP) and fluorouracil (5-FU) sensitivity. Mechanistical studies indicated that DEHP can decrease the transcription of PTEN, a well-characterized tumor suppressor, in ESCC cells. Over expression of PTEN can reverse DEHP-regulated ESCC cell proliferation and chemosensitivity. Further, DEHP can increase the expression of HES-1, which can bind with the promoter of PTEN to inhibit its transcription. Collectively, DEHP can increase proliferation while decrease chemosensitivity of ESCC cells via regulation of HES-1/PTEN axis. Further, daily expression of DEHP may be a potent risk factor for ESCC development.
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Affiliation(s)
- Jian Zhu
- Department of Gastroenterology, Jingjiang People's Hospital, Jingjiang, Jiangsu, 214500, People's Republic of China
| | - Xuesong Zhang
- Department of Central Laboratory, Jingjiang People's Hospital, Jingjiang, Jiangsu, 214500, People's Republic of China
| | - Bin Wen
- Department of Oncology, Jingjiang Chinese Medicine Hospital, Jingjiang, Jiangsu, 214500, People's Republic of China
| | - Jing Chen
- Department of Pathology, Jingjiang People's Hospital, Jingjiang, Jiangsu, 214500, People's Republic of China
| | - Yuntian Lu
- Department of Bioinformatics, Nantong University Medical School, Nantong, Jiangsu, 226001, People's Republic of China
| | - Weijun Xu
- Department of Gastroenterology, East Theater General Hospital of PLA, Nanjing, Jiangsu, 210000, People's Republic of China.
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257
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Kuerbanjiang M, Gu L, Xu C, Xu WT, Wen S, Xue H, Xu Q. Decreased Expression of MPC2 Contributes to Aerobic Glycolysis and Colorectal Cancer Proliferation by Activating mTOR Pathway. J Immunol Res 2021; 2021:6618837. [PMID: 33791391 DOI: 10.1155/2021/6618837] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 02/09/2021] [Accepted: 03/05/2021] [Indexed: 11/17/2022] Open
Abstract
Mitochondrial Pyruvate Carrier 1 (MPC1), one of the rate-limiting proteins involved in glycolysis metabolism, has been demonstrated as a tumor inhibitor in several cancers. This study was conducted with the aim of exploring the role and underlying mechanisms of MPC2 in colorectal cancer (CRC). Here, we found that MPC2 expression was decreased in CRC samples. According to the analysis on our TMA data, lower expression of MPC2 is correlated with a higher incidence of distant metastasis and lymph node invasion, bigger tumor size, low survival rate of patients, and advanced T stages. Functionally, in vivo/vitro experiments showed that MPC2 knockdown induced CRC cell proliferation and growth, while MPC2 overexpression inhibited the proliferation and growth of CRC. Further study demonstrated that MPC2 knockdown resulted in aerobic glycolysis in CRC cells. Similarly, MPC2 overexpression in CRC cells also caused inhibited aerobic glycolysis. Further study found that MPC2 knockdown in CRC cell lines activated the mTOR signaling pathway, and the addition of rapamycin reversed the promoting effect of MPC2 knockdown on CRC proliferation and glycolysis. Likewise, the addition of MHY1485 also reversed the MPC2 overexpression's role in hindering aerobic glycolysis in CRC cells. Collectively, our study established that low expression of MPC2 led to CRC growth as well as aerobic glycolysis through the regulation of the mTOR pathway in CRC cells, indicating a potential biomarker and therapy target for CRC.
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258
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Agostini-Vulaj D, Cates JMM, Bratton LE, Gonzalez RS. Increasing tumor budding in cholangiocarcinoma is associated with decreased disease-specific survival. Hum Pathol 2021; 111:75-83. [PMID: 33727168 DOI: 10.1016/j.humpath.2021.03.004] [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] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 02/16/2021] [Accepted: 03/02/2021] [Indexed: 12/16/2022]
Abstract
Tumor budding (TB) has been shown to be an adverse prognostic factor in several gastrointestinal malignancies, most notably colorectal carcinoma (CRC). TB has undergone some evaluation in Eastern cohorts of cholangiocarcinoma (CC), and we undertook this study to evaluate whether TB in CC was linked to other clinicopathologic factors or to outcome in a Western cohort. We evaluated 112 cases of CC for age, sex, margin status, location, size, grade, lymphovascular invasion (LVI), perineural invasion (PNI), subtype (large or small duct), staging parameters, recurrence-free survival, disease-specific survival (DSS), and TB. Budding was scored using International Tumor Budding Consensus Conference recommendations for CRC: The highest tumor bud count at the invasive tumor front in a 0.785 mm2 area was recorded and stratified into Bd1 (0-4 buds), Bd2 (5-9 buds), and Bd3 (≥10 buds). Our cohort included 54 (48%) extrahepatic CCs and 58 (52%) intrahepatic CCs. TB was more commonly seen in the settings of higher-grade lesions, males, extrahepatic CC, PNI, LVI, and positive resection margin (all P ≤ 0.021). In multivariate analysis, worse DSS was correlated with budding score Bd2/Bd3 (hazard ratio [HR] 2.6687, 95% confidence interval [CI] 1.585-5.217, P = 0.001) and with nodal disease (HR 2.876, 95% CI 1.585-5.217, P = 0.001). TB is associated with higher-grade disease in CC, and increased TB is associated with poor disease-specific survival. Our findings support the notion that TB may serve as useful information for clinicians with respect to patient prognosis in CC, as in CRC.
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Affiliation(s)
- Diana Agostini-Vulaj
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, NY, 14642, USA
| | - Justin M M Cates
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN, 37232, USA
| | | | - Raul S Gonzalez
- Department of Pathology, Beth Israel Deaconess Medical Center, Boston, MA, 02215, USA.
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259
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Zhu W, Zhang H, Li Y, Ding Z, Liu Z, Ruan Y, Feng H, Li G, Liu B, He F, Zhou N, Jiang J, Wen Z, Xu G, Zhao J, Zhang B, Wang D, Tang Z, Wang H, Liu J. Optimizing Management to Reduce the Mortality of COVID-19: Experience From a Designated Hospital for Severely and Critically Ill Patients in China. Front Med (Lausanne) 2021; 8:582764. [PMID: 33777967 PMCID: PMC7987780 DOI: 10.3389/fmed.2021.582764] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 08/19/2020] [Accepted: 01/26/2021] [Indexed: 01/08/2023] Open
Abstract
Background: The coronavirus disease 2019 (COVID-19) has swept through the world at a tremendous speed, and there is still limited data available on the treatment for COVID-19. The mortality of severely and critically ill COVID-19 patients in the Optical Valley Branch of Tongji Hospital was low. We aimed to analyze the available treatment strategies to reduce mortality. Methods: In this retrospective, single-center study, we included 1,106 COVID-19 patients admitted to the Optical Valley Branch of Tongji Hospital from February 9 to March 9, 2020. Cases were analyzed for demographic and clinical features, laboratory data, and treatment methods. Outcomes were followed up until March 29, 2020. Results: Inflammation-related indices (hs-CRP, ESR, serum ferritin, and procalcitonin) were significantly higher in severe and critically ill patients than those in moderate patients. The levels of cytokines, including IL-6, IL2R, IL-8, and TNF-α, were also higher in the critical patients. Incidence of acute respiratory distress syndrome (ARDS) in the severely and critically ill group was 23.0% (99/431). Sixty-one patients underwent invasive mechanical ventilation. The correlation between SpO2/FiO2 and PaO2/FiO2 was confirmed, and the cut-off value of SpO2/FiO2 related to survival was 134.43. The mortality of patients with low SpO2/FiO2 (<134.43) at intubation was higher than that of patients with high SpO2/FiO2 (>134.43) (72.7 vs. 33.3%). Among critical patients, the application rates of glucocorticoid therapy, continuous renal replacement therapy (CRRT), and anticoagulation treatment reached 55.2% (238/431), 7.2% (31/431), and 37.1% (160/431), respectively. Among the intubated patients, the application rates of glucocorticoid therapy, CRRT, and anticoagulation treatment were respectively 77.0% (47/61), 54.1% (33/61), and 98.4% (60/61). Conclusion: No vaccines or specific antiviral drugs for COVID-19 have been shown to be sufficiently safe and effective to date. Comprehensive treatment including ventilatory support, multiple organ function preservation, glucocorticoid use, renal replacement therapy, anticoagulation, and restrictive fluid management was the main treatment strategy. Early recognition and intervention, multidisciplinary collaboration, multi-organ function support, and personalized treatment might be the key for reducing mortality.
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Affiliation(s)
- Wei Zhu
- Department of Emergency and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Huaqiu Zhang
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yong Li
- Department of Respiratory and Critical Care Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zeyang Ding
- Hepatic Surgery Center and Hubei Key Laboratory of Hepato-Biliary-Pancreatic Diseases, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhuo Liu
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yajun Ruan
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Huan Feng
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ganxun Li
- Hepatic Surgery Center and Hubei Key Laboratory of Hepato-Biliary-Pancreatic Diseases, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Bo Liu
- Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Fan He
- Department of Nephrology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ning Zhou
- Department of Cardiology, Department of Internal Medicine and Genetic Diagnosis Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jiangang Jiang
- Department of Cardiology, Department of Internal Medicine and Genetic Diagnosis Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhixiang Wen
- Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Gang Xu
- Department of Nephrology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jianping Zhao
- Department of Respiratory and Critical Care Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Bixiang Zhang
- Hepatic Surgery Center and Hubei Key Laboratory of Hepato-Biliary-Pancreatic Diseases, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Daowen Wang
- Department of Cardiology, Department of Internal Medicine and Genetic Diagnosis Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhouping Tang
- Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hui Wang
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jihong Liu
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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260
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Cheng H, Zhao H, Xiao X, Huang Q, Zeng W, Tian B, Ma T, Lu D, Jin Y, Li Y. Long Non-coding RNA MALAT1 Upregulates ZEB2 Expression to Promote Malignant Progression of Glioma by Attenuating miR-124. Mol Neurobiol 2021; 58:1006-1016. [PMID: 33078370 DOI: 10.1007/s12035-020-02165-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [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: 03/20/2020] [Accepted: 10/09/2020] [Indexed: 02/02/2023]
Abstract
Long non-coding RNA (lncRNA) metastasis-associated lung adenocarcinoma transcript 1 (MALAT1) has been shown to play a critical role in the development of several malignancies. However, the potential molecular mechanism of MALAT1 in glioma remains unclear. In the present study, we found that the expression of MALAT1 was aberrantly increased in both human glioma tissues and cells and associated with poor prognosis in glioma patients. We further found that MALAT1 silencing significantly inhibited glioma cell proliferation while induced cell cycle arrest and apoptosis. In parallel, knockdown of MALAT1 decreased tumor volume in vivo. These results suggested that MALAT1 acts as a functional oncogene, resulting in the oncogenicity in glioma. Nevertheless, the tumor-suppressive effect of MALAT1 silencing was reversed by miR-124. Besides, the relevance of ZEB2 in tumor progression has been studied in several forms of human cancer, and ZEB2 was identified as a target of miR-124 and negatively regulated by miR-124. MALAT1 overexpression or miR-124 inhibitor led to increased expression of ZEB2. In summary, our study depicts a novel pathway of MALAT1/miR-124/ZEB2 that regulates the progression of glioma and might provide a promising strategy for glioma therapy.
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Affiliation(s)
- Hongyu Cheng
- Department of Ultrasound Diagnosis, Tangdu Hospital, Air Force Medical University, No.1, Xinsi Road, Xi'an, 710038, Shaanxi, China
| | - Haikang Zhao
- Department of Neurosurgery, The Second Hospital Affiliated of Xi'an Medical University, Xi'an, Shaanxi, China
| | - Xin Xiao
- Department of Orthopedics, Xijing Hospital, Air Force Medical University, Xi'an, Shaanxi, China
| | - Qian Huang
- College of Basic Medicine, Air Force Medical University, Xi'an, Shaanxi, China
| | - Wen Zeng
- Department of Neurosurgery, Tangdu Hospital, Air Force Medical University, Xi'an, Shaanxi, China
| | - Bo Tian
- Department of Neurosurgery, Tangdu Hospital, Air Force Medical University, Xi'an, Shaanxi, China
| | - Tao Ma
- Department of Neurosurgery, Tangdu Hospital, Air Force Medical University, Xi'an, Shaanxi, China
| | - Dan Lu
- Department of Neurosurgery, Tangdu Hospital, Air Force Medical University, Xi'an, Shaanxi, China
| | - Yulong Jin
- Department of Hematology, General Hospital of Central Theater Command, Wuhan, 430030, Hubei, China.
| | - Yuqian Li
- Department of Neurosurgery, Tangdu Hospital, Air Force Medical University, Xi'an, Shaanxi, China.
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Blackburn NB, Leandro AC, Nahvi N, Devlin MA, Leandro M, Martinez Escobedo I, Peralta JM, George J, Stacy BA, deMaar TW, Blangero J, Keniry M, Curran JE. Transcriptomic Profiling of Fibropapillomatosis in Green Sea Turtles ( Chelonia mydas) From South Texas. Front Immunol 2021; 12:630988. [PMID: 33717164 PMCID: PMC7943941 DOI: 10.3389/fimmu.2021.630988] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [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: 11/20/2020] [Accepted: 02/01/2021] [Indexed: 12/19/2022] Open
Abstract
Sea turtle fibropapillomatosis (FP) is a tumor promoting disease that is one of several threats globally to endangered sea turtle populations. The prevalence of FP is highest in green sea turtle (Chelonia mydas) populations, and historically has shown considerable temporal growth. FP tumors can significantly affect the ability of turtles to forage for food and avoid predation and can grow to debilitating sizes. In the current study, based in South Texas, we have applied transcriptome sequencing to FP tumors and healthy control tissue to study the gene expression profiles of FP. By identifying differentially expressed turtle genes in FP, and matching these genes to their closest human ortholog we draw on the wealth of human based knowledge, specifically human cancer, to identify new insights into the biology of sea turtle FP. We show that several genes aberrantly expressed in FP tumors have known tumor promoting biology in humans, including CTHRC1 and NLRC5, and provide support that disruption of the Wnt signaling pathway is a feature of FP. Further, we profiled the expression of current targets of immune checkpoint inhibitors from human oncology in FP tumors and identified potential candidates for future studies.
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Affiliation(s)
- Nicholas B. Blackburn
- Department of Human Genetics, School of Medicine, The University of Texas Rio Grande Valley, Brownsville, TX, United States
- South Texas Diabetes and Obesity Institute, School of Medicine, The University of Texas Rio Grande Valley, Brownsville, TX, United States
- Menzies Institute for Medical Research, University of Tasmania, Hobart, TAS, Australia
| | - Ana Cristina Leandro
- Department of Human Genetics, School of Medicine, The University of Texas Rio Grande Valley, Brownsville, TX, United States
- South Texas Diabetes and Obesity Institute, School of Medicine, The University of Texas Rio Grande Valley, Brownsville, TX, United States
| | - Nina Nahvi
- Sea Turtle Inc., South Padre Island, TX, United States
| | | | - Marcelo Leandro
- Department of Human Genetics, School of Medicine, The University of Texas Rio Grande Valley, Brownsville, TX, United States
- South Texas Diabetes and Obesity Institute, School of Medicine, The University of Texas Rio Grande Valley, Brownsville, TX, United States
| | | | - Juan M. Peralta
- Department of Human Genetics, School of Medicine, The University of Texas Rio Grande Valley, Brownsville, TX, United States
- South Texas Diabetes and Obesity Institute, School of Medicine, The University of Texas Rio Grande Valley, Brownsville, TX, United States
- Menzies Institute for Medical Research, University of Tasmania, Hobart, TAS, Australia
| | - Jeff George
- Sea Turtle Inc., South Padre Island, TX, United States
| | - Brian A. Stacy
- National Marine Fisheries Service, Office of Protected Resources, University of Florida, Gainesville, FL, United States
| | | | - John Blangero
- Department of Human Genetics, School of Medicine, The University of Texas Rio Grande Valley, Brownsville, TX, United States
- South Texas Diabetes and Obesity Institute, School of Medicine, The University of Texas Rio Grande Valley, Brownsville, TX, United States
| | - Megan Keniry
- Department of Biology, College of Sciences, The University of Texas Rio Grande Valley, Edinburg, TX, United States
| | - Joanne E. Curran
- Department of Human Genetics, School of Medicine, The University of Texas Rio Grande Valley, Brownsville, TX, United States
- South Texas Diabetes and Obesity Institute, School of Medicine, The University of Texas Rio Grande Valley, Brownsville, TX, United States
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262
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Abstract
Epstein-Barr virus (EBV) encodes more than 40 miRNAs that target cellular mRNAs to aid its infection, replication, and maintenance in individual cells and in its human host. Importin-7 (IPO7), also termed Imp7 or RanBPM7, is a nucleocytoplasmic transport protein that has been frequently identified as a target for two of these viral miRNAs. How the viral life cycle might benefit from regulating IPO7 has been unclear, though. We demonstrate with CRISPR-Cas9 mutagenesis that IPO7 is essential in at least three cells lines and that increasing its levels of expression inhibits growth of infected cells. EBV thus regulates the level of IPO7 to limit its accumulation consistent with its being required for survival of its host cell.
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Affiliation(s)
- Ya-Chun Yang
- McArdle Laboratory for Cancer Research, University of Wisconsin-Madison, Madison, WI, United States
| | - Bill Sugden
- McArdle Laboratory for Cancer Research, University of Wisconsin-Madison, Madison, WI, United States
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Abstract
Therapy resistance is a major problem when treating cancer patients as cancer cells develop mechanisms that counteract the effect of therapeutic compounds, leading to fit and more aggressive clones that contribute to poor prognosis. Therapy resistance can be both intrinsic and/or acquired. These are multifactorial events, and some are related to factors including adaptations in cancer stem cells (CSCs), epithelial-mesenchymal transition (EMT), deregulation of key signaling pathways, drug efflux through ABC transporters, acquired mutations, evading apoptosis, and activation of DNA damage response among others. Among these factors, CSCs represent the major source of therapy resistance. CSCs are a subset of tumor cells that are capable of self-renewal and multilineage progenitor expansion that are known to be intrinsically resistant to anticancer treatments. Multiple clones of CSCs pre-exist, and some can adopt and expand easily to changes in the tumor microenvironment (TME) and/or in response to radio- and chemotherapy. A combination of both intrinsic and extrinsic factors contributes to CSC-mediated therapy resistance. In this review, we will focus on CSCs and therapy resistance as well as suggest strategies to eliminate CSCs and, therefore, overcome resistance. Video abstract.
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Affiliation(s)
- Yuan Li
- Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030-4009 USA
- Department of Surgical Oncology and General Surgery, First Hospital of China Medical University, Shenyang, 110001 People’s Republic of China
| | - Zhenning Wang
- Department of Surgical Oncology and General Surgery, First Hospital of China Medical University, Shenyang, 110001 People’s Republic of China
| | - Jaffer A. Ajani
- Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030-4009 USA
| | - Shumei Song
- Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030-4009 USA
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264
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Li S, Xiang W, Tian J, Wang H, Hu S, Wang K, Chen L, Huang C, Zhou J. Bone Marrow-Derived Mesenchymal Stem Cells Differentially Affect Glioblastoma Cell Proliferation, Migration, and Invasion: A 2D-DIGE Proteomic Analysis. Biomed Res Int 2021; 2021:4952876. [PMID: 33628783 DOI: 10.1155/2021/4952876] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 01/08/2021] [Accepted: 02/01/2021] [Indexed: 12/22/2022]
Abstract
Bone marrow-derived mesenchymal stem cells (BM-MSCs) display high tumor tropism and cause indirect effects through the cytokines they secrete. However, the effects of BM-MSCs on the biological behaviors of glioblastoma multiforme remain unclear. In this study, the conditioned medium from BM-MSCs significantly inhibited the proliferation of C6 cells (P < 0.05) but promoted their migration and invasion (P < 0.05). Two-dimensional fluorescence difference gel electrophoresis (2D-DIGE) proteomic analysis revealed 17 proteins differentially expressed in C6 cells exposed to the BM-MSC-conditioned medium including five upregulated proteins and 12 downregulated proteins. Among these, six differentially expressed proteins (Calr, Set, Oat, Npm1, Ddah1, and Tardbp) were closely related to cell proliferation and differentiation, and nine proteins (Pdia6, Sphk1, Anxa4, Vim, Tuba1c, Actr1b, Actn4, Rap2c, and Tpm2) were associated with motility and the cytoskeleton, which may modulate the invasion and migration of tumor cells. Above all, by identifying the differentially expressed proteins using proteomics and bioinformatics analysis, BM-MSCs could be genetically modified to specifically express tumor-suppressive factors when BM-MSCs are to be used as tumor-selective targeting carriers in the future.
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265
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Safaee S, Fardi M, Hemmat N, Khosravi N, Derakhshani A, Silvestris N, Baradaran B. Silencing ZEB2 Induces Apoptosis and Reduces Viability in Glioblastoma Cell Lines. Molecules 2021; 26:molecules26040901. [PMID: 33572092 PMCID: PMC7916008 DOI: 10.3390/molecules26040901] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 01/29/2021] [Accepted: 02/03/2021] [Indexed: 11/24/2022] Open
Abstract
Background: Glioma is an aggressive type of brain tumor that originated from neuroglia cells, accounts for about 80% of all malignant brain tumors. Glioma aggressiveness has been associated with extreme cell proliferation, invasion of malignant cells, and resistance to chemotherapies. Due to resistance to common therapies, glioma affected patients’ survival has not been remarkably improved. ZEB2 (SIP1) is a critical transcriptional regulator with various functions during embryonic development and wound healing that has abnormal expression in different malignancies, including brain tumors. ZEB2 overexpression in brain tumors is attributed to an unfavorable state of the malignancy. Therefore, we aimed to investigate some functions of ZEB2 in two different glioblastoma U87 and U373 cell lines. Methods: In this study, we investigated the effect of ZEB2 knocking down on the apoptosis, cell cycle, cytotoxicity, scratch test of the two malignant brain tumor cell lines U87 and U373. Besides, we investigated possible proteins and microRNA, SMAD2, SMAD5, and miR-214, which interact with ZEB2 via in situ analysis. Then we evaluated candidate gene expression after ZEB2-specific knocking down. Results: We found that ZEB2 suppression induced apoptosis in U87 and U373 cell lines. Besides, it had cytotoxic effects on both cell lines and reduced cell migration. Cell cycle analysis showed cell cycle arrest in G0/G1 and apoptosis induction in U87 and U373 cell lines receptively. Also, we have found that SAMAD2/5 expression was reduced after ZEB2-siRNA transfection and miR-214 upregulated after transfection. Conclusions: In line with previous investigations, our results indicated a critical oncogenic role for ZEB2 overexpression in brain glioma tumors. These properties make ZEB2 an essential molecule for further studies in the treatment of glioma cancer.
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Affiliation(s)
- Sahar Safaee
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz 51656-65811, Iran; (S.S.); (M.F.); (N.H.); (N.K.); (A.D.)
| | - Masoumeh Fardi
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz 51656-65811, Iran; (S.S.); (M.F.); (N.H.); (N.K.); (A.D.)
- Hematology Division, Immunology Department, Tabriz University of Medical Sciences, Tabriz 51656-65811, Iran
| | - Nima Hemmat
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz 51656-65811, Iran; (S.S.); (M.F.); (N.H.); (N.K.); (A.D.)
| | - Neda Khosravi
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz 51656-65811, Iran; (S.S.); (M.F.); (N.H.); (N.K.); (A.D.)
| | - Afshin Derakhshani
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz 51656-65811, Iran; (S.S.); (M.F.); (N.H.); (N.K.); (A.D.)
- IRCCS Istituto Tumori “Giovanni Paolo II” of Bari, 70124 Bari, Italy
| | - Nicola Silvestris
- IRCCS Istituto Tumori “Giovanni Paolo II” of Bari, 70124 Bari, Italy
- Department of Biomedical Sciences and Human Oncology, University of Bari “Aldo Moro”, 70124 Bari, Italy
- Correspondence: (N.S.); or (B.B.)
| | - Behzad Baradaran
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz 51656-65811, Iran; (S.S.); (M.F.); (N.H.); (N.K.); (A.D.)
- Correspondence: (N.S.); or (B.B.)
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266
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Fisicaro F, Di Napoli M, Liberto A, Fanella M, Di Stasio F, Pennisi M, Bella R, Lanza G, Mansueto G. Neurological Sequelae in Patients with COVID-19: A Histopathological Perspective. Int J Environ Res Public Health 2021; 18:1415. [PMID: 33546463 DOI: 10.3390/ijerph18041415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
BACKGROUND Neuroinvasive properties of SARS-CoV-2 have allowed the hypothesis of several pathogenic mechanisms related to acute and chronic neurological sequelae. However, neuropathological correlates have been poorly systematically investigated, being retrieved from reports of single case or limited case series still. METHODS A PubMed search was carried out to review all publications on autopsy in subjects with "COronaVIrus Disease-19" (COVID-19). Among them, we focused on histological findings of the brain, which were compared with those from the authors' autoptic studies performed in some COVID-19 patients. RESULTS Only seven studies reported histological evidence of brain pathology in patients deceased for COVID-19, including three with reverse transcription-quantitative polymerase chain reaction evidence of viral infection. All these studies, in line with our experience, showed vascular-related and infection-related secondary inflammatory tissue damage due to an abnormal immune response. It is still unclear, however, whether these findings are the effect of a direct viral pathology or rather reflect a non-specific consequence of cardiovascular and pulmonary disease on the brain. CONCLUSIONS Notwithstanding the limited evidence available and the heterogeneity of the studies, we provide a preliminary description of the relationship between SARS-CoV-2 and brain sequelae. Systematic autoptic investigations are needed for accurate detection and adequate management of these patients.
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Fisicaro F, Di Napoli M, Liberto A, Fanella M, Di Stasio F, Pennisi M, Bella R, Lanza G, Mansueto G. Neurological Sequelae in Patients with COVID-19: A Histopathological Perspective. Int J Environ Res Public Health 2021; 18:ijerph18041415. [PMID: 33546463 PMCID: PMC7913756 DOI: 10.3390/ijerph18041415] [Citation(s) in RCA: 55] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 01/18/2021] [Accepted: 01/29/2021] [Indexed: 02/07/2023]
Abstract
BACKGROUND Neuroinvasive properties of SARS-CoV-2 have allowed the hypothesis of several pathogenic mechanisms related to acute and chronic neurological sequelae. However, neuropathological correlates have been poorly systematically investigated, being retrieved from reports of single case or limited case series still. METHODS A PubMed search was carried out to review all publications on autopsy in subjects with "COronaVIrus Disease-19" (COVID-19). Among them, we focused on histological findings of the brain, which were compared with those from the authors' autoptic studies performed in some COVID-19 patients. RESULTS Only seven studies reported histological evidence of brain pathology in patients deceased for COVID-19, including three with reverse transcription-quantitative polymerase chain reaction evidence of viral infection. All these studies, in line with our experience, showed vascular-related and infection-related secondary inflammatory tissue damage due to an abnormal immune response. It is still unclear, however, whether these findings are the effect of a direct viral pathology or rather reflect a non-specific consequence of cardiovascular and pulmonary disease on the brain. CONCLUSIONS Notwithstanding the limited evidence available and the heterogeneity of the studies, we provide a preliminary description of the relationship between SARS-CoV-2 and brain sequelae. Systematic autoptic investigations are needed for accurate detection and adequate management of these patients.
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Affiliation(s)
- Francesco Fisicaro
- Department of Biomedical and Biotechnological Sciences, University of Catania, Via Santa Sofia 97, 95123 Catania, Italy; (F.F.); (A.L.); (M.P.)
| | - Mario Di Napoli
- Department of Neurology and Stroke Unit, San Camillo de’ Lellis General Hospital, Viale Kennedy 1, 02100 Rieti, Italy; (M.D.N.); (M.F.)
| | - Aldo Liberto
- Department of Biomedical and Biotechnological Sciences, University of Catania, Via Santa Sofia 97, 95123 Catania, Italy; (F.F.); (A.L.); (M.P.)
| | - Martina Fanella
- Department of Neurology and Stroke Unit, San Camillo de’ Lellis General Hospital, Viale Kennedy 1, 02100 Rieti, Italy; (M.D.N.); (M.F.)
| | - Flavio Di Stasio
- Department of Neurology and Stroke Unit Cesena-Forlì, Bufalini Hospital, AUSL Romagna, Viale Ghirotti 286, 47521 Cesena, Italy;
| | - Manuela Pennisi
- Department of Biomedical and Biotechnological Sciences, University of Catania, Via Santa Sofia 97, 95123 Catania, Italy; (F.F.); (A.L.); (M.P.)
| | - Rita Bella
- Department of Medical and Surgical Sciences and Advanced Technologies, University of Catania, Via Santa Sofia 87, 95123 Catania, Italy;
| | - Giuseppe Lanza
- Department of Surgery and Medical-Surgery Specialties, University of Catania, Via Santa Sofia 78, 95123 Catania, Italy
- Department of Neurology IC, Oasi Research Institute-IRCCS, Via Conte Ruggero 78, 94018 Troina, Italy
- Correspondence: ; Tel.: +39-095-3782448
| | - Gelsomina Mansueto
- Department of Advanced Medical and Surgical Sciences (DAMSS), University of Campania “Luigi Vanvitelli”, Piazza L. Miraglia 2, 80138 Naples, Italy;
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268
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Chen X, Li D, Huang Z, Zhong S, Cai L. [Effect of exosomes derived from human Epstein-Barr virus-positive nasopharyngeal carcinoma cells on lymphangiogenesis and lymph node metastasis]. Nan Fang Yi Ke Da Xue Xue Bao 2021; 40:1776-1783. [PMID: 33380393 DOI: 10.12122/j.issn.1673-4254.2020.12.12] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
OBJECTIVE To investigate the effect of exosomes derived from Epstein-Barr virus (EBV)-positive nasopharyngeal carcinoma (NPC) cells on lymphangiogenesis and lymph node metastasis of NPC. METHODS Exosomes from NP69 cells and EBV-positive HK1 (HK1-EBV) cells were obtained by ultracentrifugation and identified by Western blotting and nanoparticle tracking analysis. Dio dye phagocytosis test was performed to observe exosome uptake by lymphatic endothelial cells. Lymphatic endothelial cells were treated with exosomes from nasopharyngeal epithelium (NP69), HK1-EBV, and C666-1 cells or exosome-free supernatant of HK1-EBV and C666-1 cells, and tube formation and migration of the cells were observed. In a nude mouse model of popliteal lymph node metastasis of NPC, the effects of normal saline, NP69 cell-derived exosomes, HK1-EBV cell-derived exosomes, exosome-free supernatant of HK1-EBV cells, and HK1-EBV exosome-free supernatant protein on lymphangiogenesis and lymph node metastasis of the tumor were observed. RESULTS The exosomes obtained by ultracentrifugation contained abundant exosome-specific proteins and showed a normal size range. The exosomes from NPC cells and NP69 cells could be taken up by lymphatic endothelial cells. Compared with the blank control and exosomes form NP69 cells, exosomes derived from HK1-EBV and C666-1 cells significantly promoted tube formation and migration of lymphatic endothelial cells (P < 0.05), and the exosomes and exosome-free supernatant of HK1-EBV and C666-1 cell produced similar effects (P > 0.05). In the tumor-bearing nude mice, exosomes derived from HK1-EBV cells significantly promoted metastasis of NPC cells and local lymphangiogenesis compared with the blank control, NP69 cell-derived exosomes and exosome-free supernatant of HK1-EBV cells (P < 0.05). CONCLUSIONS Exosomes from EBV-positive NPC cells can significantly promote lymphangiogenesis and lymph node metastasis of NPC.
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Affiliation(s)
- Xingrui Chen
- Guangdong Sanjiu Brain Hospital, Guangzhou 510510, China
| | - Dengke Li
- Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Zhongxi Huang
- Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | | | - Linbo Cai
- Guangdong Sanjiu Brain Hospital, Guangzhou 510510, China
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269
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García-Ortega A, Oscullo G, Calvillo P, López-Reyes R, Méndez R, Gómez-Olivas JD, Bekki A, Fonfría C, Trilles-Olaso L, Zaldívar E, Ferrando A, Anguera G, Briones-Gómez A, Reig-Mezquida JP, Feced L, González-Jiménez P, Reyes S, Muñoz-Núñez CF, Carreres A, Gil R, Morata C, Toledo-Pons N, Martí-Bonmati L, Menéndez R, Martínez-García MÁ. Incidence, risk factors, and thrombotic load of pulmonary embolism in patients hospitalized for COVID-19 infection. J Infect 2021; 82:261-269. [PMID: 33440207 PMCID: PMC7834386 DOI: 10.1016/j.jinf.2021.01.003] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 12/31/2020] [Accepted: 01/08/2021] [Indexed: 01/08/2023]
Abstract
OBJECTIVE To determine the incidence, characteristics, and risk factors of pulmonary embolism (PE) among patients hospitalized for COVID-19. PATIENTS AND METHODS We performed a prospective observational study of a randomly selected cohort of consecutive patients hospitalized for COVID-19 infection between March 8, 2020 through April 25, 2020. All eligible patients underwent a computed tomography pulmonary angiography independently of their PE clinical suspicion and were pre-screened for a baseline elevated D-dimer level. RESULTS 119 patients were randomly selected from the 372 admitted to one tertiary hospital in Valencia (Spain) for COVID-19 infection during the period of study. Seventy-three patients fulfilled both the inclusion criteria and none of the exclusion criteria and were finally included in the study. Despite a high level of pharmacological thromboprophylaxis (89%), the incidence of PE was 35.6% (95% confidence interval [CI], 29.6 to 41.6%), mostly with a peripheral location and low thrombotic load (Qanadli score 18.5%). Multivariate analysis showed that heart rate (Hazard Ratio [HR], 1.04), room-air oxygen saturation (spO2) (HR, 0.87), D-dimer (HR, 1.02), and C-reactive protein (CRP) levels (HR, 1.01) at the time of admission were independent predictors of incident PE during hospitalization. A risk score was constructed with these four variables showing a high predictive value of incident PE (AUC-ROC: 0.86; 95% CI: 0.80 to 0.93). CONCLUSIONS Our findings confirmed a high incidence of PE in hospitalized COVID-19 patients. Heart rate, spO2, D-dimer, and CRP levels at admission were associated with higher rates of PE during hospitalization.
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Affiliation(s)
- Alberto García-Ortega
- Respiratory Department, Hospital Universitario y Politécnico La Fe, Valencia, Spain; Medical Research Institute Hospital La Fe (IISLAFE), Valencia, Spain.
| | - Grace Oscullo
- Respiratory Department, Hospital Universitario y Politécnico La Fe, Valencia, Spain; Medical Research Institute Hospital La Fe (IISLAFE), Valencia, Spain
| | - Pilar Calvillo
- Radiology Department, Hospital Universitario y Politécnico La Fe, Valencia, Spain
| | - Raquel López-Reyes
- Respiratory Department, Hospital Universitario y Politécnico La Fe, Valencia, Spain; Medical Research Institute Hospital La Fe (IISLAFE), Valencia, Spain
| | - Raúl Méndez
- Respiratory Department, Hospital Universitario y Politécnico La Fe, Valencia, Spain; Medical Research Institute Hospital La Fe (IISLAFE), Valencia, Spain
| | | | - Amina Bekki
- Respiratory Department, Hospital Universitario y Politécnico La Fe, Valencia, Spain
| | - Carles Fonfría
- Radiology Department, Hospital Universitario y Politécnico La Fe, Valencia, Spain
| | - Laura Trilles-Olaso
- Radiology Department, Hospital Universitario y Politécnico La Fe, Valencia, Spain
| | - Enrique Zaldívar
- Respiratory Department, Hospital Universitario y Politécnico La Fe, Valencia, Spain; Medical Research Institute Hospital La Fe (IISLAFE), Valencia, Spain
| | - Ana Ferrando
- Respiratory Department, Hospital Universitario y Politécnico La Fe, Valencia, Spain
| | - Gabriel Anguera
- Respiratory Department, Hospital Universitario y Politécnico La Fe, Valencia, Spain; Lung Transplantation Unit, Hospital Universitario y Politécnico La Fe, Valencia, Spain
| | - Andrés Briones-Gómez
- Respiratory Department, Hospital Universitario y Politécnico La Fe, Valencia, Spain
| | - Juan Pablo Reig-Mezquida
- Respiratory Department, Hospital Universitario y Politécnico La Fe, Valencia, Spain; Lung Transplantation Unit, Hospital Universitario y Politécnico La Fe, Valencia, Spain
| | - Laura Feced
- Respiratory Department, Hospital Universitario y Politécnico La Fe, Valencia, Spain; Medical Research Institute Hospital La Fe (IISLAFE), Valencia, Spain
| | - Paula González-Jiménez
- Respiratory Department, Hospital Universitario y Politécnico La Fe, Valencia, Spain; Medical Research Institute Hospital La Fe (IISLAFE), Valencia, Spain
| | - Soledad Reyes
- Respiratory Department, Hospital Universitario y Politécnico La Fe, Valencia, Spain
| | - Carlos F Muñoz-Núñez
- Radiology Department, Hospital Universitario y Politécnico La Fe, Valencia, Spain
| | - Ainhoa Carreres
- Radiology Department, Hospital Universitario y Politécnico La Fe, Valencia, Spain
| | - Ricardo Gil
- Internal Medicine, Hospital Universitario y Politécnico La Fe, Valencia, Spain
| | - Carmen Morata
- Internal Medicine, Hospital Universitario y Politécnico La Fe, Valencia, Spain
| | - Nuria Toledo-Pons
- Department of Pneumology, University Hospital Son Espases, Palma de Mallorca, Spain
| | - Luis Martí-Bonmati
- Radiology Department, Hospital Universitario y Politécnico La Fe, Valencia, Spain; Biomedical Imaging Research Group (GIBI230), Instituto de Investigación Sanitaria La Fe, Valencia, Spain
| | - Rosario Menéndez
- Respiratory Department, Hospital Universitario y Politécnico La Fe, Valencia, Spain; Medical Research Institute Hospital La Fe (IISLAFE), Valencia, Spain; Medicine Faculty, University of Valencia, Valencia, Spain; CIBER de enfermedades respiratorias, Instituto Carlos III, Madrid, Spain
| | - Miguel Ángel Martínez-García
- Respiratory Department, Hospital Universitario y Politécnico La Fe, Valencia, Spain; Medical Research Institute Hospital La Fe (IISLAFE), Valencia, Spain; CIBER de enfermedades respiratorias, Instituto Carlos III, Madrid, Spain
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Zebardast A, Tehrani SS, Latifi T, Sadeghi F. Critical review of Epstein-Barr virus microRNAs relation with EBV-associated gastric cancer. J Cell Physiol 2021; 236:6136-6153. [PMID: 33507558 DOI: 10.1002/jcp.30297] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 12/29/2020] [Accepted: 01/15/2021] [Indexed: 12/24/2022]
Abstract
Epstein-Barr virus (EBV)-associated gastric cancer (EBVaGC) is regarded as the most prevalent malignant tumor triggered by EBV infection. In recent years, increasing attention has been considered to recognize more about the disease process's exact mechanisms. There is accumulating evidence that showing epigenetic modifications play critical roles in the EBVaGC pathogenesis. MicroRNAs (miRNAs), as critical epigenetic modulators, are single-strand short noncoding RNA (length ~ <200 bp), which regulate gene expression through binding to the 3'-untranslated region (3'-UTR) of target RNA transcripts and either degrade or repress their activities. In the latest research on EBV, it was found that this virus could encode miRNAs. Mechanistically, EBV-encoded miRNAs are involved in carcinogenesis and the progression of EBV-associated malignancies. Moreover, these miRNAs implicated in immune evasion, identification of pattern recognition receptors, regulation of lymphocyte activation and lethality, modulation of infected host cell antigen, maintain of EBV infection status, promotion of cell proliferation, invasion and migration, and reduction of apoptosis. As good news, not only has recent data demonstrated the crucial function of EBV-encoded miRNAs in the pathogenesis of EBVaGC, but it has also been revealed that aberrant expression of exosomal miRNAs in EBVaGC has made them biomarkers for detection of EBVaGC. Regarding these substantial characterizes, the critical role of EBV-encoded miRNAs has been a hot topic in research. In this review, we will focus on the multiple mechanisms involved in EBVaGC caused by EBV-encoded miRNAs and briefly discuss their potential application in the clinic as a diagnostic biomarker.
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Affiliation(s)
- Arghavan Zebardast
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Sadra S Tehrani
- Department of Clinical Biochemistry, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.,Department of Microbiology, School of Medicine, Babol University of Medical Sciences, Babol, Iran
| | - Tayebeh Latifi
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Farzin Sadeghi
- Department of Microbiology, School of Medicine, Babol University of Medical Sciences, Babol, Iran
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271
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Song ZB, Yang HP, Xu AQ, Zhan ZM, Song Y, Li ZY. Connective tissue growth factor as an unfavorable prognostic marker promotes the proliferation, migration, and invasion of gliomas. Chin Med J (Engl) 2020;:670-8. [PMID: 32197031 DOI: 10.1097/CM9.0000000000000683] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
BACKGROUND In consideration of the difficulty in diagnosing high heterogeneous glioma, valuable prognostic markers are urgent to be investigated. This study aimed to verify that connective tissue growth factor (CTGF) is associated with the clinical prognosis of glioma, also to analyze the effect of CTGF on the biological function. METHODS In this study, glioma and non-tumor tissue samples were obtained in 2012 to 2014 from the Department of Neurosurgery of Nanfang Hospital of Southern Medical University, Guangzhou, China. Based on messenger RNA (mRNA) data from the Cancer Genome Atlas (TCGA) and CCGA dataset, combined with related clinical information, we detected the expression of CTGF mRNA in glioma and assessed its effect on the prognosis of glioma patients. High expression of CTGF mRNA and protein in glioma were verified by reverse transcription-polymerase chain reaction, immunohistochemistry, and Western blotting. The role of CTGF in the proliferation, migration, and invasion of gliomas were respectively identified by methylthiazoletetrazolium assay, Transwell and Boyden assay in vitro. The effect on glioma cell circle was assessed by flow cytometry. For higher expression of CTGF in glioblastoma (GBM), the biological function of CTGF in GBM was investigated by gene ontology (GO) analysis. RESULTS In depth analysis of TCGA data revealed that CTGF mRNA was highly expressed in glioma (GBM, n = 163; lowly proliferative glioma [LGG], n = 518; non-tumor brain tissue, n = 207; LGG, t = 2.410, GBM, t = 2.364, P < 0.05). CTGF mRNA and protein expression in glioma (86%) was significantly higher than that in non-tumor tissues (18%) verified by collected samples. Glioma patients with higher expression of CTGF showed an obviously poorer overall survival (35.4 and 27.0 months compared to 63.3 and 55.1 months in TCGA and Chinese Glioma Genome Atlas (CGGA) databases separately, CGGA: χ = 7.596, P = 0.0059; TCGA: χ = 10.46, P = 0.0012). Inhibiting CTGF expression could significantly suppress the proliferation, migration, and invasion of gliomas. CTGF higher expression had been observed in GBM, and GO analysis demonstrated that the function of CTGF in GBM was mainly associated with metabolism and energy pathways (P < 0.001). CONCLUSIONS CTGF is highly expressed in glioma, especially GBM, as an unfavorable and independent prognostic marker for glioma patients and facilitates the progress of glioma.
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272
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Liu H, Wang Z, Sun H, Teng T, Li Y, Zhou X, Yang Q. Thrombosis and Coagulopathy in COVID-19: Current Understanding and Implications for Antithrombotic Treatment in Patients Treated With Percutaneous Coronary Intervention. Front Cardiovasc Med 2021; 7:599334. [PMID: 33537347 PMCID: PMC7847976 DOI: 10.3389/fcvm.2020.599334] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [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: 08/27/2020] [Accepted: 12/10/2020] [Indexed: 01/08/2023] Open
Abstract
Coronavirus disease 2019 (COVID-19), a respiratory syndrome, is a global pandemic. Therefore, there is an urgent need to explore mechanisms implicated in the pathogenesis of the disease. Clinical and autopsy studies show a complex chain of events preceding COVID-19-related death. The disease is characterized by endothelial dysfunction, platelet activation, thrombosis, coagulopathy, and multiple organ failure. Globally, millions of patients with coronary heart disease undergo percutaneous coronary intervention (PCI) each year. These patients undergo high-intensity antithrombotic therapy during hospitalization and dual antiplatelet therapy (DAPT) for at least 6 months post PCI. COVID-19 is characterized by changes in platelet counts. Treatment of ischemic events that occur during stent implantation is associated with bleeding complications in patients following PCI complicated by COVID-19. This review summarizes recent progress in activation status and levels of COVID-19-related platelet changes. These findings will provide information on the effectiveness of antithrombotic therapy for the management of platelet changes in COVID-19 patients.
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Affiliation(s)
- Hangkuan Liu
- Graduate School of Tianjin Medical University, Tianjin, China
- Department of Cardiology, Tianjin Medical University General Hospital, Tianjin, China
| | - Zhijia Wang
- Graduate School of Tianjin Medical University, Tianjin, China
- Department of Cardiology, Tianjin Medical University General Hospital, Tianjin, China
| | - Haonan Sun
- Graduate School of Tianjin Medical University, Tianjin, China
- Department of Cardiology, Tianjin Medical University General Hospital, Tianjin, China
| | - Tianming Teng
- Department of Cardiology, Tianjin Medical University General Hospital, Tianjin, China
| | - Yongle Li
- Department of Cardiology, Tianjin Medical University General Hospital, Tianjin, China
| | - Xin Zhou
- Department of Cardiology, Tianjin Medical University General Hospital, Tianjin, China
| | - Qing Yang
- Department of Cardiology, Tianjin Medical University General Hospital, Tianjin, China
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273
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Xu QQ, Zhang C, Zhang YL, Lei JL, Kong LY, Luo JG. Dimeric guaianes from leaves of Xylopia vielana as snail inhibitors identified by high content screening. Bioorg Chem 2021; 108:104646. [PMID: 33484941 DOI: 10.1016/j.bioorg.2021.104646] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 12/08/2020] [Accepted: 01/06/2021] [Indexed: 11/17/2022]
Abstract
The transcriptional repressor Snail trriggers epithelial-mesenchymal transition (EMT), the process allowing cancer cells with invasive and metastasis properties. In this study, we screened medicinal plants for the Snail inhibitory active components by high content screen (HCS) and found that the crude extract of Xylopia vielana leaves showed potential activity. Subsequently, bioassay-guided isolation of the extract of Xylopia vielana was performed to obtain twenty-four dimeric guaianes (1-24), including 16 new analogues (1-5, 8-11, 13-15, 17, 18, 21, and 22). Their structures were elucidated by the comprehensive application of multiple spectroscopic methods. Compounds 1, 11, 12, and 16 were initially identified as the active compounds. Wound healing assay, transwell migration assay and western blot experiments verified that compounds 1 and 12 inhibited the expression of Snail in a concentration-dependent manner, and compound 12 was verified as a potent tumor migration inhibitory agent. This work showed a practical strategy for the discovery of new Snail inhibitors from natural products and provided potential insights for dimeric guaianes as anticancer lead compounds specifically targeting Snail protein.
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Affiliation(s)
- Qi-Qi Xu
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, People's Republic of China
| | - Chao Zhang
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, People's Republic of China
| | - Ya-Long Zhang
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, People's Republic of China
| | - Jian-Li Lei
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, People's Republic of China
| | - Ling-Yi Kong
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, People's Republic of China.
| | - Jian-Guang Luo
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, People's Republic of China.
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274
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Cao Y, Xie L, Shi F, Tang M, Li Y, Hu J, Zhao L, Zhao L, Yu X, Luo X, Liao W, Bode AM. Targeting the signaling in Epstein-Barr virus-associated diseases: mechanism, regulation, and clinical study. Signal Transduct Target Ther 2021; 6:15. [PMID: 33436584 PMCID: PMC7801793 DOI: 10.1038/s41392-020-00376-4] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 09/30/2020] [Accepted: 10/15/2020] [Indexed: 12/11/2022] Open
Abstract
Epstein–Barr virus-associated diseases are important global health concerns. As a group I carcinogen, EBV accounts for 1.5% of human malignances, including both epithelial- and lymphatic-originated tumors. Moreover, EBV plays an etiological and pathogenic role in a number of non-neoplastic diseases, and is even involved in multiple autoimmune diseases (SADs). In this review, we summarize and discuss some recent exciting discoveries in EBV research area, which including DNA methylation alterations, metabolic reprogramming, the changes of mitochondria and ubiquitin-proteasome system (UPS), oxidative stress and EBV lytic reactivation, variations in non-coding RNA (ncRNA), radiochemotherapy and immunotherapy. Understanding and learning from this advancement will further confirm the far-reaching and future value of therapeutic strategies in EBV-associated diseases.
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Affiliation(s)
- Ya Cao
- Key Laboratory of Carcinogenesis and Invasion, Chinese Ministry of Education, Department of Radiology, Xiangya Hospital, Central South University, 410078, Changsha, China. .,Cancer Research Institute and School of Basic Medical Science, Xiangya School of Medicine, Central South University, 410078, Changsha, China. .,Key Laboratory of Carcinogenesis, Chinese Ministry of Health, 410078, Changsha, China. .,Research Center for Technologies of Nucleic Acid-Based Diagnostics and Therapeutics Hunan Province, 410078, Changsha, China. .,Molecular Imaging Research Center of Central South University, 410008, Changsha, Hunan, China. .,National Joint Engineering Research Center for Genetic Diagnostics of Infectious Diseases and Cancer, 410078, Changsha, China. .,Department of Radiology, Xiangya Hospital, Central South University, 410078, Changsha, China.
| | - Longlong Xie
- Key Laboratory of Carcinogenesis and Invasion, Chinese Ministry of Education, Department of Radiology, Xiangya Hospital, Central South University, 410078, Changsha, China.,Cancer Research Institute and School of Basic Medical Science, Xiangya School of Medicine, Central South University, 410078, Changsha, China.,Key Laboratory of Carcinogenesis, Chinese Ministry of Health, 410078, Changsha, China
| | - Feng Shi
- Key Laboratory of Carcinogenesis and Invasion, Chinese Ministry of Education, Department of Radiology, Xiangya Hospital, Central South University, 410078, Changsha, China.,Cancer Research Institute and School of Basic Medical Science, Xiangya School of Medicine, Central South University, 410078, Changsha, China.,Key Laboratory of Carcinogenesis, Chinese Ministry of Health, 410078, Changsha, China
| | - Min Tang
- Key Laboratory of Carcinogenesis and Invasion, Chinese Ministry of Education, Department of Radiology, Xiangya Hospital, Central South University, 410078, Changsha, China.,Cancer Research Institute and School of Basic Medical Science, Xiangya School of Medicine, Central South University, 410078, Changsha, China.,Key Laboratory of Carcinogenesis, Chinese Ministry of Health, 410078, Changsha, China.,Molecular Imaging Research Center of Central South University, 410008, Changsha, Hunan, China
| | - Yueshuo Li
- Key Laboratory of Carcinogenesis and Invasion, Chinese Ministry of Education, Department of Radiology, Xiangya Hospital, Central South University, 410078, Changsha, China.,Cancer Research Institute and School of Basic Medical Science, Xiangya School of Medicine, Central South University, 410078, Changsha, China.,Key Laboratory of Carcinogenesis, Chinese Ministry of Health, 410078, Changsha, China
| | - Jianmin Hu
- Key Laboratory of Carcinogenesis and Invasion, Chinese Ministry of Education, Department of Radiology, Xiangya Hospital, Central South University, 410078, Changsha, China.,Cancer Research Institute and School of Basic Medical Science, Xiangya School of Medicine, Central South University, 410078, Changsha, China.,Key Laboratory of Carcinogenesis, Chinese Ministry of Health, 410078, Changsha, China
| | - Lin Zhao
- Key Laboratory of Carcinogenesis and Invasion, Chinese Ministry of Education, Department of Radiology, Xiangya Hospital, Central South University, 410078, Changsha, China.,Cancer Research Institute and School of Basic Medical Science, Xiangya School of Medicine, Central South University, 410078, Changsha, China.,Key Laboratory of Carcinogenesis, Chinese Ministry of Health, 410078, Changsha, China
| | - Luqing Zhao
- Key Laboratory of Carcinogenesis and Invasion, Chinese Ministry of Education, Department of Radiology, Xiangya Hospital, Central South University, 410078, Changsha, China
| | - Xinfang Yu
- Key Laboratory of Carcinogenesis and Invasion, Chinese Ministry of Education, Department of Radiology, Xiangya Hospital, Central South University, 410078, Changsha, China.,Cancer Research Institute and School of Basic Medical Science, Xiangya School of Medicine, Central South University, 410078, Changsha, China.,Key Laboratory of Carcinogenesis, Chinese Ministry of Health, 410078, Changsha, China
| | - Xiangjian Luo
- Key Laboratory of Carcinogenesis and Invasion, Chinese Ministry of Education, Department of Radiology, Xiangya Hospital, Central South University, 410078, Changsha, China.,Cancer Research Institute and School of Basic Medical Science, Xiangya School of Medicine, Central South University, 410078, Changsha, China.,Key Laboratory of Carcinogenesis, Chinese Ministry of Health, 410078, Changsha, China.,Molecular Imaging Research Center of Central South University, 410008, Changsha, Hunan, China
| | - Weihua Liao
- Department of Radiology, Xiangya Hospital, Central South University, 410078, Changsha, China
| | - Ann M Bode
- The Hormel Institute, University of Minnesota, Austin, MN, 55912, USA
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275
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Zhen X, Zhang S, Xie F, Zhou M, Hu Z, Zhu F, Nie J. Nicotinamide Supplementation Attenuates Renal Interstitial Fibrosis via Boosting the Activity of Sirtuins. Kidney Dis (Basel) 2021; 7:186-199. [PMID: 34179114 DOI: 10.1159/000510943] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Accepted: 08/18/2020] [Indexed: 11/19/2022]
Abstract
Background Progressive tubulointerstitial fibrosis (TIF) is the final common pathway leading to ESRD. There is an urgent need to develop effective approaches slowing the progression of TIF. Previous studies showed that systemic supplementation of nicotinamide (NAM) increases renal NAD+ and reverses ischemic-reperfusion induced acute renal injury. However, the role and mechanism of NAM in TIF has been unclear. Methods In vivo, we injected NAM (0.25 mg/g) 3 days before unilateral ureter obstruction (UUO) till day 7 post-operation. In vitro, mouse primary proximal tubular epithelial cells (PTCs), rat renal NRK-49F cells, and human renal proximal tubular epithelial cell (HK-2) were pretreated with the indicated concentration of NAM 1 h before incubation with transform growth factor-β1 (TGF-β1) or aristolochic acid (AA) for 24 or 48 h. To evaluate the role of sirtuins (SIRTs), PTCs were pretreated with EX527 or resveratrol 30 min before incubation with NAM and TGF-β1. Results In the present study, we demonstrated that NAM supplementation prevented UUO-induced TIF, and AA-induced renal injury. NAM also decreased the expression of pro-fibrotic proteins and pro-inflammatory cytokines (IL-6 and TNF-α) and attenuated interstitial inflammation. In vitro experiment showed that, NAM inhibited AA-induced G2/M arrest of HK-2 cells by downregulating the expression of cyclin G1, a target gene of p53. In addition, NAM inhibited TGF-β1-induced fibroblast proliferation and activation shown as downregulated expression of collagen I, fibronectin, PCNA, cyclin D1, IL-6, and TNF-α. NAM decreased the acetylation of Smad3 and p53. EX527, an inhibitor of SIRT1, reversed the effect of NAM on TGF-β1-induced matrix protein production. However, resveratrol, a SIRT1 activator, did not further boost the protective effect of NAM on reducing matrix protein production. Conclusions Taken together, these data indicate that NAM supplementation could inhibit TIF at least partially by boosting the activity of sirtuins.
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Affiliation(s)
- Xin Zhen
- State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Key Laboratory of Organ Failure Research (Ministry of Education), Division of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Shaowu Zhang
- State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Key Laboratory of Organ Failure Research (Ministry of Education), Division of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Feifei Xie
- State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Key Laboratory of Organ Failure Research (Ministry of Education), Division of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Miaomiao Zhou
- State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Key Laboratory of Organ Failure Research (Ministry of Education), Division of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Zheng Hu
- State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Key Laboratory of Organ Failure Research (Ministry of Education), Division of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Fengxin Zhu
- State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Key Laboratory of Organ Failure Research (Ministry of Education), Division of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Jing Nie
- State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Key Laboratory of Organ Failure Research (Ministry of Education), Division of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou, China
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276
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Hutcheson RL, Chakravorty A, Sugden B. Burkitt Lymphomas Evolve to Escape Dependencies on Epstein-Barr Virus. Front Cell Infect Microbiol 2021; 10:606412. [PMID: 33505922 PMCID: PMC7829347 DOI: 10.3389/fcimb.2020.606412] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [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: 09/14/2020] [Accepted: 11/27/2020] [Indexed: 01/25/2023] Open
Abstract
Epstein-Barr Virus (EBV) can transform B cells and contributes to the development of Burkitt lymphoma and other cancers. Through decades of study, we now recognize that many of the viral genes required to transform cells are not expressed in EBV-positive Burkitt lymphoma (BL) tumors, likely due to the immune pressure exerted on infected cells. This recognition has led to the hypothesis that the loss of expression of these viral genes must be compensated through some mechanisms. Recent progress in genome-wide mutational analysis of tumors provides a wealth of data about the cellular mutations found in EBV-positive BLs. Here, we review common cellular mutations found in these tumors and consider how they may compensate for the viral genes that are no longer expressed. Understanding these mutations and how they may substitute for EBV's genes and contribute to lymphomagenesis can serve as a launchpad for more mechanistic studies, which will help us navigate the sea of genomic data available today, and direct the discoveries necessary to improve the treatment of EBV-positive BLs.
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277
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Joshi P, Pol J, Chougule M, Jadhav K, Patil S, Patil S. Tumor budding - A promising prognostic histopathological parameter in oral squamous cell carcinoma - A comparative immunohistochemical study. J Oral Maxillofac Pathol 2021; 24:587. [PMID: 33967517 PMCID: PMC8083399 DOI: 10.4103/jomfp.jomfp_74_20] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 02/28/2020] [Revised: 10/08/2020] [Accepted: 11/03/2020] [Indexed: 11/06/2022] Open
Abstract
Introduction: The majority of the head and neck squamous cell carcinomas (HNSCC) occur in the oral cavity. Even with advances in cancer therapy only minor improvements in the survival of HNSCC patients have taken place and approximately 350,000 patients die annually of HNSCC worldwide. Tumor budding (TB) is a novel and promising histo-morphological parameter that has been studied in many cancers. The presence of TB is associated with lymph node and distant metastasis as well as poor survival, independently of the applied scoring system. The depth of tumor invasion (D) measured from the surface of the tumor to the deepest point of invasion is also an important prognostic parameter for oral squamous cell carcinoma (OSCC) with a cutoff point of 4 mm. Both taken together constitute BD model and it has also been found to be an independent prognostic factor for patients with OSCC. Therefore, it would be highly beneficial to evaluate TB and BD model in routine histopathological reporting. Aims and Objectives: This study aims to compare the detection of TB in hematoxylin-eosin and pan-cytokeratin stained immune-histochemical sections of OSCC and also to evaluate whether BD score can serve as a reliable prognostic indicator for OSCC. Methodology: A total of 30 formalin-fixed, paraffin-embedded tissue blocks of clinically and histopathologically diagnosed cases of OSCC were retrieved. One section was stained with hematoxylin and eosin and the other was processed for pancytokeratin immunohistochemistry to evaluate tumor buds. Depth of invasion (D) was also evaluated to achieve the BD score. Results: Statistical significance (P < 0.001) was noted between TB score evaluated in hematoxylin and eosin (H&E) and pancytokeratin stained sections. There was no statistical significance between age, gender, site of lesion, clinical staging, survival and BD score. Conclusion: Immunohistochemical analysis of TB is superior to H&E staining in detection of tumor buds at the tumor invasive front.
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Affiliation(s)
- Priya Joshi
- Department of Oral Pathology and Microbiology, Vasantdada Patil Dental College and Hospital, Sangli, Maharashtra, India
| | - Jaydeep Pol
- Department of Oncopathology, Mahatma Gandhi Cancer Hospital, Miraj, Maharashtra, India
| | - Madhuri Chougule
- Department of Oral Pathology and Microbiology, Vasantdada Patil Dental College and Hospital, Sangli, Maharashtra, India
| | - Kiran Jadhav
- Department of Oral Pathology and Microbiology, Vasantdada Patil Dental College and Hospital, Sangli, Maharashtra, India
| | - Sangeeta Patil
- Department of Oral Pathology and Microbiology, Vasantdada Patil Dental College and Hospital, Sangli, Maharashtra, India
| | - Swapnita Patil
- Department of Oral Pathology and Microbiology, Vasantdada Patil Dental College and Hospital, Sangli, Maharashtra, India
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278
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Liang XY, Shang YS, Bai N, Zhong PY, Zhang WJ, Wang ZL. Management of acute coronary syndrome in the context of coronavirus disease 2019. Medicine (Baltimore) 2021; 100:e24151. [PMID: 33429796 PMCID: PMC7793413 DOI: 10.1097/md.0000000000024151] [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] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 12/06/2020] [Indexed: 01/08/2023] Open
Abstract
Coronavirus disease 2019 (COVID-19) is still developing worldwide. The prognosis of the disease will become worse and mortality will be even higher when it is combined with cardiovascular disease. Furthermore, COVID-19 is highly infectious and requires strict isolation measures. For acute coronary syndromes (ACS), a common cardiovascular disease, infection may aggravate the occurrence and development of ACS, making the management of more difficult. It will be an enormous challenge for clinical practice to deal with ACS in this setting of COVID-19.Aim to reduce the mortality of ACS patients during the epidemic of COVID-19 by standardizing procedures as much as possible.Pubmed and other relevant databases were searched to retrieve articles on COVID-19 and articles on ACS management strategies during previous influenza epidemics. The data was described and synthesized to summarize the diagnosis and management strategy of ACS, the preparation of catheter laboratory, and the protection of the medical staff in the context of COVID-19. Ethical approval is not required in this study, because it is a review with no recourse to patient identifiable information.Standardized diagnosis and treatment advice can help reduce the mortality of COVID-19 patients with ACS. In the absence of contraindications, the third generation of thrombolytic drugs should be the first choice for thrombolytic treatment in the isolation ward. For patients who have to receive PCI, this article provides detailed protective measures to avoid nosocomial infection.
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Affiliation(s)
- Xi-Ying Liang
- The First Clinical Medical College of Lanzhou University, No. 1, Donggang West Road, Chengguan District
| | - Yao-Sheng Shang
- The First Clinical Medical College of Lanzhou University, No. 1, Donggang West Road, Chengguan District
| | - Nan Bai
- The First Clinical Medical College of Lanzhou University, No. 1, Donggang West Road, Chengguan District
| | - Peng-Yu Zhong
- The First Clinical Medical College of Lanzhou University, No. 1, Donggang West Road, Chengguan District
| | - Wen-Jiao Zhang
- The First Clinical Medical College of Lanzhou University, No. 1, Donggang West Road, Chengguan District
| | - Zhi-Lu Wang
- Department of Cardiology, The First Hospital of Lanzhou University, Lanzhou, Gansu, China
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279
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Zeng Y, Que T, Lin J, Zhan Z, Xu A, Wu Z, Xie C, Luo J, Ding S, Long H, Zhang X, Song Y. Oncogenic ZEB2/miR-637/HMGA1 signaling axis targeting vimentin promotes the malignant phenotype of glioma. Mol Ther Nucleic Acids 2021; 23:769-782. [PMID: 33614228 PMCID: PMC7868719 DOI: 10.1016/j.omtn.2020.12.029] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Accepted: 12/30/2020] [Indexed: 12/11/2022]
Abstract
Glioma is the most common primary tumor of the central nervous system. We previously confirmed that zinc finger E-box binding homeobox (ZEB) 2 promotes the malignant progression of glioma, while microRNA-637 (miR-637) is associated with favorable prognosis in glioma. This study aimed to investigate the potential interaction between ZEB2 and miR-637 and its downstream signaling pathway in glioma. The results revealed that ZEB2 could directly bind to the E-box elements in the miR-637 promoter and promote cell proliferation, migration, and invasion via miR-637 downregulation. Subsequent screening confirmed that HMGA1 was a direct target of miR-637, while miR-637 could drive the malignant phenotype of glioma by suppressing HMGA1 both in vitro and in vivo. Furthermore, interaction between cytoplasmic HMGA1 and vimentin was observed, and vimentin inhibition could abolish increased migration and invasion induced by HMGA1 overexpression. Both HMGA1 and vimentin were associated with an unfavorable prognosis in glioma. Additionally, upregulated HMGA1 and vimentin were found in isocitrate dehydrogenase (IDH) wild-type and 1p/19q non-codeletion diffusely infiltrating glioma. In conclusion, we identified an oncogenic ZEB2/miR-637/HMGA1 signaling axis targeting vimentin that promotes both migration and invasion in glioma.
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Affiliation(s)
- Yu Zeng
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, 510375, People's Republic of China.,Department of Cell Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong, 510375, People's Republic of China
| | - Tianshi Que
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, 510375, People's Republic of China
| | - Jie Lin
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, 510375, People's Republic of China
| | - Zhengming Zhan
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, 510375, People's Republic of China
| | - Anqi Xu
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, 510375, People's Republic of China
| | - Zhiyong Wu
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, 510375, People's Republic of China
| | - Cheng Xie
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, 510375, People's Republic of China
| | - Jie Luo
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, 510375, People's Republic of China
| | - Shengfeng Ding
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, 510375, People's Republic of China
| | - Hao Long
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, 510375, People's Republic of China
| | - Xian Zhang
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, 510375, People's Republic of China
| | - Ye Song
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, 510375, People's Republic of China
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Torres K, Landeros N, Wichmann IA, Polakovicova I, Aguayo F, Corvalan AH. EBV miR-BARTs and human lncRNAs: Shifting the balance in competing endogenous RNA networks in EBV-associated gastric cancer. Biochim Biophys Acta Mol Basis Dis 2021; 1867:166049. [PMID: 33401001 DOI: 10.1016/j.bbadis.2020.166049] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 12/04/2020] [Accepted: 12/14/2020] [Indexed: 02/06/2023]
Abstract
Non-coding RNAs (ncRNAs) contribute to the regulation of gene expression. By acting as competing endogenous RNA (ceRNA), long non-coding RNAs (lncRNAs) hijack microRNAs (miRNAs) and inhibit their ability to bind their coding targets. Viral miRNAs can compete with and target the same transcripts as human miRNAs, shifting the balance in networks associated with multiple cellular processes and diseases. Epstein-Barr virus (EBV) is an example of how a subset of viral coding RNA and non-coding RNAs can cause deregulation of human transcripts and contribute to the development of EBV-associated malignancies. EBV non-coding transforming genes include lncRNAs (i.e circular RNAs), and small ncRNAs (i.e. miRNAs). Among the latter, most ongoing research has focused on miR-BARTs whereas target many genes associated with apoptosis and epithelial-mesenchymal transition, in EBV-associated gastric cancer (GC). In this review, we propose to include the interactions between EBV ncRNAs human transcripts in the hypothesis known as "competitive viral and host RNAs". These interactions may shift the balance in biological pathways such as apoptosis and epithelial-mesenchymal transition in EBV-associated gastric cancer.
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Affiliation(s)
- Keila Torres
- Advanced Center for Chronic Diseases, Pontificia Universidad Católica de Chile, Santiago, Chile; UC Center for Investigational Oncology, Pontificia Universidad Católica de Chile, Santiago, Chile; Department of Hematology-Oncology, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Natalia Landeros
- Advanced Center for Chronic Diseases, Pontificia Universidad Católica de Chile, Santiago, Chile; UC Center for Investigational Oncology, Pontificia Universidad Católica de Chile, Santiago, Chile; Department of Hematology-Oncology, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Ignacio A Wichmann
- Advanced Center for Chronic Diseases, Pontificia Universidad Católica de Chile, Santiago, Chile; UC Center for Investigational Oncology, Pontificia Universidad Católica de Chile, Santiago, Chile; Department of Hematology-Oncology, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Iva Polakovicova
- Advanced Center for Chronic Diseases, Pontificia Universidad Católica de Chile, Santiago, Chile; UC Center for Investigational Oncology, Pontificia Universidad Católica de Chile, Santiago, Chile; Department of Hematology-Oncology, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Francisco Aguayo
- Advanced Center for Chronic Diseases, Universidad de Chile, Santiago, Chile; Virology Program, Institute of Biomedical Sciences, Faculty of Medicine, Universidad de Chile, Santiago, Chile
| | - Alejandro H Corvalan
- Advanced Center for Chronic Diseases, Pontificia Universidad Católica de Chile, Santiago, Chile; UC Center for Investigational Oncology, Pontificia Universidad Católica de Chile, Santiago, Chile; Department of Hematology-Oncology, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile.
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Wang W, Xu A, Zhao M, Sun J, Gao L. Circ_0001247 functions as a miR-1270 sponge to accelerate cervical cancer progression by up-regulating ZEB2 expression level. Biotechnol Lett 2021; 43:745-55. [PMID: 33386495 DOI: 10.1007/s10529-020-03059-w] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Accepted: 12/10/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND There is increasing evidence that circular RNA (circRNA) disorders have an impact on the progression of various malignancies. The expression characteristics, function and underlying mechanism of circ_0001247 in cervical cancer (CC) have not been confirmed. METHODS GSE147483 datasets of circRNAs expression in CC cell line and normal cervical cell line were retrieved from GEO database, and the circRNA with significant difference was selected; circ_0001247, miR-1270, and Zinc finger E-box binding homeobox 2 (ZEB2) expressions in CC tissues and cell lines were analyzed by quantitative real-time polymerase chain reaction (qRT-PCR) assay; cell counting kit-8 (CCK-8) assay and BrdU assay were applied to monitor the proliferative ability of CC cells; Transwell assay was conducted to examine the migration and invasion of CC cells, and flow cytometry was used to evaluate the apoptosis; Western blot assay was adopted to detect ZEB2 protein expressions; dual-luciferase report gene assay was used to verify the targeting relationship between circ_0001247 and miR-1270, and miR-1270 and the 3'UTR of ZEB2. RESULTS Analysis of GSE147483 suggested that circ_0001247 could probably be an oncogenic circRNA in CC. Compared with that in adjacent tissues and normal cervical epithelial cells, circ_0001247 expression in CC tissues and cell lines was significantly increased; knocking down circ_0001247 expression could inhibit the proliferation and metastasis of CC cells, and promote apoptosis, while circ_0001247 overexpression worked oppositely; circ_0001247 sponged miR-1270 in CC cells; miR-1270 diminished the promoting effect of circ_0001247 by inactivating the ZEB2. CONCLUSION Circ_0001247 promotes progression of CC by sponging miR-1270 to upregulate ZEB2 expression level.
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Ménager P, Brière O, Gautier J, Riou J, Sacco G, Brangier A, Annweiler C. Regular Use of VKA Prior to COVID-19 Associated with Lower 7-Day Survival in Hospitalized Frail Elderly COVID-19 Patients: The GERIA-COVID Cohort Study. Nutrients 2020; 13:nu13010039. [PMID: 33374341 PMCID: PMC7824717 DOI: 10.3390/nu13010039] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 12/20/2020] [Accepted: 12/22/2020] [Indexed: 12/14/2022] Open
Abstract
Background. Vitamin K concentrations are inversely associated with the clinical severity of COVID-19. The objective of this cohort study was to determine whether the regular use of vitamin K antagonist (VKA) prior to COVID-19 was associated with short-term mortality in frail older adults hospitalized for COVID-19. Methods. Eighty-two patients consecutively hospitalized for COVID-19 in a geriatric acute care unit were included. The association of the regular use of VKA prior to COVID-19 with survival after 7 days of COVID-19 was examined using a propensity-score-weighted Cox proportional-hazards model accounting for age, sex, severe undernutrition, diabetes mellitus, hypertension, prior myocardial infarction, congestive heart failure, prior stroke and/or transient ischemic attack, CHA2DS2-VASc score, HAS-BLED score, and eGFR. Results. Among 82 patients (mean ± SD age 88.8 ± 4.5 years; 48% women), 73 survived COVID-19 at day 7 while 9 died. There was no between-group difference at baseline, despite a trend for more frequent use of VKA in those who did not survive on day 7 (33.3% versus 8.2%, p = 0.056). While considering “using no VKA” as the reference (hazard ratio (HR) = 1), the HR for 7-day mortality in those regularly using VKA was 5.68 [95% CI: 1.17; 27.53]. Consistently, COVID-19 patients using VKA on a regular basis had shorter survival times than the others (p = 0.031). Conclusions. Regular use of VKA was associated with increased mortality at day 7 in hospitalized frail elderly patients with COVID-19.
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Affiliation(s)
- Pierre Ménager
- Department of Geriatric Medicine, Le Mans Hospital, F-72037 Le Mans, France;
- Department of Geriatric Medicine and Memory Clinic, Research Center on Autonomy and Longevity, University Hospital, F-49933 Angers, France; (O.B.); (J.G.); (G.S.); (A.B.)
| | - Olivier Brière
- Department of Geriatric Medicine and Memory Clinic, Research Center on Autonomy and Longevity, University Hospital, F-49933 Angers, France; (O.B.); (J.G.); (G.S.); (A.B.)
| | - Jennifer Gautier
- Department of Geriatric Medicine and Memory Clinic, Research Center on Autonomy and Longevity, University Hospital, F-49933 Angers, France; (O.B.); (J.G.); (G.S.); (A.B.)
| | - Jérémie Riou
- INSERM, MINT, 1066, University of Angers, F-49000 Angers, France;
- Delegation to Clinical Research and Innovation, Angers University Hospital, F-49933 Angers, France
| | - Guillaume Sacco
- Department of Geriatric Medicine and Memory Clinic, Research Center on Autonomy and Longevity, University Hospital, F-49933 Angers, France; (O.B.); (J.G.); (G.S.); (A.B.)
| | - Antoine Brangier
- Department of Geriatric Medicine and Memory Clinic, Research Center on Autonomy and Longevity, University Hospital, F-49933 Angers, France; (O.B.); (J.G.); (G.S.); (A.B.)
| | - Cédric Annweiler
- Department of Geriatric Medicine, Le Mans Hospital, F-72037 Le Mans, France;
- Department of Geriatric Medicine and Memory Clinic, Research Center on Autonomy and Longevity, University Hospital, F-49933 Angers, France; (O.B.); (J.G.); (G.S.); (A.B.)
- UPRES EA 4638, University of Angers, F-49000 Angers, France
- Gérontopôle Autonomie Longévité des Pays de la Loire, F-44000 Nantes, France
- Robarts Research Institute, Department of Medical Biophysics, Schulich School of Medicine and Dentistry, The University of Western Ontario, London, ON N6A 5K8, Canada
- Correspondence: ; Tel.: +33-2-4135-4725; Fax: +33-2-4135-4894
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Wang P, Deng Y, Guo Y, Xu Z, Li Y, Ou X, Xie L, Lu M, Zhong J, Li B, Hu L, Deng S, Peng T, Cai M, Li M. Epstein-Barr Virus Early Protein BFRF1 Suppresses IFN-β Activity by Inhibiting the Activation of IRF3. Front Immunol 2020; 11:513383. [PMID: 33391252 PMCID: PMC7774019 DOI: 10.3389/fimmu.2020.513383] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [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: 11/27/2019] [Accepted: 09/15/2020] [Indexed: 12/13/2022] Open
Abstract
Epstein-Barr virus (EBV) is the causative agent of infectious mononucleosis that is closely associated with several human malignant diseases, while type I interferon (IFN-I) plays an important role against EBV infection. As we all know, EBV can encode some proteins to inhibit the production of IFN-I, but it’s not clear whether other proteins also take part in this progress. EBV early lytic protein BFRF1 is shown to be involved in viral maturation, however, whether BFRF1 participates in the host innate immune response is still not well known. In this study, we found BFRF1 could down-regulate sendai virus-induced IFN-β promoter activity and mRNA expression of IFN-β and ISG54 during BFRF1 plasmid transfection and EBV lytic infection, but BFRF1 could not affect the promoter activity of NF-κB or IRF7. Specifically, BFRF1 could co-localize and interact with IKKi. Although BFRF1 did not interfere the interaction between IKKi and IRF3, it could block the kinase activity of IKKi, which finally inhibited the phosphorylation, dimerization, and nuclear translocation of IRF3. Taken together, BFRF1 may play a critical role in disrupting the host innate immunity by suppressing IFN-β activity during EBV lytic cycle.
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Affiliation(s)
- Ping Wang
- The Second Affiliated Hospital, State Key Laboratory of Respiratory Disease, Guangdong Provincial Key Laboratory of Allergy & Clinical Immunology, Sino-French Hoffmann Institute, School of Basic Medical Science, Guangzhou Medical University, Guangzhou, China
| | - Yangxi Deng
- The Second Affiliated Hospital, State Key Laboratory of Respiratory Disease, Guangdong Provincial Key Laboratory of Allergy & Clinical Immunology, Sino-French Hoffmann Institute, School of Basic Medical Science, Guangzhou Medical University, Guangzhou, China
| | - Yingjie Guo
- The Second Affiliated Hospital, State Key Laboratory of Respiratory Disease, Guangdong Provincial Key Laboratory of Allergy & Clinical Immunology, Sino-French Hoffmann Institute, School of Basic Medical Science, Guangzhou Medical University, Guangzhou, China
| | - Zuo Xu
- The Second Affiliated Hospital, State Key Laboratory of Respiratory Disease, Guangdong Provincial Key Laboratory of Allergy & Clinical Immunology, Sino-French Hoffmann Institute, School of Basic Medical Science, Guangzhou Medical University, Guangzhou, China
| | - Yiwen Li
- The Second Affiliated Hospital, State Key Laboratory of Respiratory Disease, Guangdong Provincial Key Laboratory of Allergy & Clinical Immunology, Sino-French Hoffmann Institute, School of Basic Medical Science, Guangzhou Medical University, Guangzhou, China
| | - Xiaowen Ou
- The Second Affiliated Hospital, State Key Laboratory of Respiratory Disease, Guangdong Provincial Key Laboratory of Allergy & Clinical Immunology, Sino-French Hoffmann Institute, School of Basic Medical Science, Guangzhou Medical University, Guangzhou, China
| | - Li Xie
- Centralab, Shenzhen Center for Chronic Disease Control, Shenzhen, China
| | - Manjiao Lu
- The Second Affiliated Hospital, State Key Laboratory of Respiratory Disease, Guangdong Provincial Key Laboratory of Allergy & Clinical Immunology, Sino-French Hoffmann Institute, School of Basic Medical Science, Guangzhou Medical University, Guangzhou, China
| | - Jiayi Zhong
- The Second Affiliated Hospital, State Key Laboratory of Respiratory Disease, Guangdong Provincial Key Laboratory of Allergy & Clinical Immunology, Sino-French Hoffmann Institute, School of Basic Medical Science, Guangzhou Medical University, Guangzhou, China
| | - Bolin Li
- The Second Affiliated Hospital, State Key Laboratory of Respiratory Disease, Guangdong Provincial Key Laboratory of Allergy & Clinical Immunology, Sino-French Hoffmann Institute, School of Basic Medical Science, Guangzhou Medical University, Guangzhou, China
| | - Li Hu
- The Second Affiliated Hospital, State Key Laboratory of Respiratory Disease, Guangdong Provincial Key Laboratory of Allergy & Clinical Immunology, Sino-French Hoffmann Institute, School of Basic Medical Science, Guangzhou Medical University, Guangzhou, China
| | - Shenyu Deng
- The Second Affiliated Hospital, State Key Laboratory of Respiratory Disease, Guangdong Provincial Key Laboratory of Allergy & Clinical Immunology, Sino-French Hoffmann Institute, School of Basic Medical Science, Guangzhou Medical University, Guangzhou, China
| | - Tao Peng
- State Key Laboratory of Respiratory Diseases, Sino-French Hoffmann Institute, Guangzhou Medical University, Guangzhou, China.,South China Vaccine Corporation Limited, Guangzhou, China
| | - Mingsheng Cai
- The Second Affiliated Hospital, State Key Laboratory of Respiratory Disease, Guangdong Provincial Key Laboratory of Allergy & Clinical Immunology, Sino-French Hoffmann Institute, School of Basic Medical Science, Guangzhou Medical University, Guangzhou, China
| | - Meili Li
- The Second Affiliated Hospital, State Key Laboratory of Respiratory Disease, Guangdong Provincial Key Laboratory of Allergy & Clinical Immunology, Sino-French Hoffmann Institute, School of Basic Medical Science, Guangzhou Medical University, Guangzhou, China
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Sun K, Jia K, Lv H, Wang SQ, Wu Y, Lei H, Chen X. EBV-Positive Gastric Cancer: Current Knowledge and Future Perspectives. Front Oncol 2020; 10:583463. [PMID: 33381453 PMCID: PMC7769310 DOI: 10.3389/fonc.2020.583463] [Citation(s) in RCA: 78] [Impact Index Per Article: 19.5] [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: 07/15/2020] [Accepted: 09/09/2020] [Indexed: 12/16/2022] Open
Abstract
Gastric cancer is the fifth most common malignant tumor and second leading cause of cancer-related deaths worldwide. With the improved understanding of gastric cancer, a subset of gastric cancer patients infected with Epstein–Barr virus (EBV) has been identified. EBV-positive gastric cancer is a type of tumor with unique genomic aberrations, significant clinicopathological features, and a good prognosis. After EBV infects the human body, it first enters an incubation period in which the virus integrates its DNA into the host and expresses the latent protein and then affects DNA methylation through miRNA under the action of the latent protein, which leads to the occurrence of EBV-positive gastric cancer. With recent developments in immunotherapy, better treatment of EBV-positive gastric cancer patients appears achievable. Moreover, studies show that treatment with immunotherapy has a high effective rate in patients with EBV-positive gastric cancer. This review summarizes the research status of EBV-positive gastric cancer in recent years and indicates areas for improvement of clinical practice.
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Affiliation(s)
- Keran Sun
- Department of Oncology, The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, China
| | - Keqi Jia
- Department of Pathology, Pathology Department of Hebei Medical University, Shijiazhuang, China
| | - Huifang Lv
- Department of Oncology, The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, China
| | - Sai-Qi Wang
- Department of Oncology, The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, China
| | - Yan Wu
- Department of Oncology, The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, China
| | - Huijun Lei
- Department of Oncology, The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, China
| | - Xiaobing Chen
- Department of Oncology, The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, China
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Abstract
Objective: We aimed to identify the expression of Sal-like 4 (SALL4) in breast cancer tissues and to explore the role of this gene in the carcinogenesis of breast cancer cells. Methods: A total of 62 paired breast cancer and noncancerous tissue samples were obtained from patients with breast cancer. SALL4 expression patterns and their association with clinicopathological characteristics were investigated by qRT-PCR, western blotting, and immunochemistry in breast cancer tissues. After the knockdown of SALL4 by short hairpin RNAs (shRNAs), the proliferative, invasive, and apoptotic abilities of MDA-MB-435 and MDA-MB-468 cells (breast cancer cell lines) were measured by colony formation and CCK-8 assays, wound healing and transwell assays, and flow cytometry, respectively. Results: SALL4 expression was higher in breast cancer tissues than that in the paired noncancerous tissues, and increased SALL4 expression in tumor tissues was closely related to tumor size and lymphatic metastasis. Furthermore, functional experiments revealed that SALL4 knockdown inhibited the cell proliferation, induced cell cycle arrest in G0/G1phase and apoptosis, and decreased the ability of migration and invasion in breast cancer cells. Additionally, our study first demonstrated that SALL4 played a critical role in modulating the tumorigenicity of breast cancer cells via the WNT/β-catenin signaling pathway. Conclusions: Our results suggest that the expression of SALL4 is upregulated in breast cancer, and this upregulation is involved in the regulation of cell growth, invasion, and apoptosis. Hence, SALL4 may be a promising target for diagnosis and therapy in patients with breast cancer.
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Affiliation(s)
- Chong Liu
- Department of Breast Surgery, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Fan Yao
- Department of Breast Surgery, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Xiaoyun Mao
- Department of Breast Surgery, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Wanming Li
- Department of Cell Biology, School of Life Sciences, China Medical University, Shenyang, China
| | - Hang Chen
- Experiment Teaching Center of Functional Subjects, College of Basic Medicine, China Medical University, Shenyang, China
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Tang J, Liu ZY, Tang Y, Wang Y. Effects of Dicer1 targeted by EBV-miR-BART6-5p on biological properties and radiosensitivity of nasopharyngeal carcinoma. Hum Exp Toxicol 2020; 40:977-993. [PMID: 33305599 DOI: 10.1177/0960327120979020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [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 To discuss the effects of Epstein-Barr virus (EBV)-encoded BamHI A rightward transcript (BART) microRNA (miR-BART6-5p) by targeting Dicer1 on biological properties and radiosensitivity of nasopharyngeal carcinoma (NPC). METHODS NPC patients (n = 96) treated with radiotherapy were collected from Jan 2010 to Jan 2011. Real-time quantitative PCR (qRT-PCR) and western blot were carried out to measure the expression of miR-BART6-5p and Dicer1. Dual luciferase reporter gene assay verified that miR-BART6-5p targeted Dicer1. CCK8, wound-healing, Transwell and Annexin-FITC/PI were employed to evaluate the effects of Dicer1 mediated by miR-BART6-5p on biological characteristics of NPC cells. The radiosensitivity of miR-BART6-5p targeting Dicer1 was assessed in vitro and in vivo. RESULTS Increased miR-BART6-5p and decreased Dicer1 were discovered in NPC patients, displaying a close association with T-stage, clinical stage, as well as Pre-DNA of NPC. While elevated Dicer1 and miR-BART6-5p down-regulation in NPC patients were found after effective radiotherapy. Both miR-BART6-5p and Dicer1 were prognostic factors of NPC. Down-regulation of miR-BART6-5p could enhance Dicer1 expression and inhibit NPC cell proliferation, invasion and migration with promoted apoptosis. Clone formation assay also showed miR-BART6-5p down-regulation reduced planting efficiency (PE), which further decreased with the increased dose of irradiation. Injection with miR-BART6-5p inhibitors in nude mice after 6-Gy irradiation contributed to the overexpression of Dicer1 and the inhibition of tumor growth. CONCLUSIONS EBV-miR-BART6-5p may target Dicer1 to facilitate proliferation and metastasis of NPC cells and suppress apoptosis, thus being a new target for NPC therapy.
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Affiliation(s)
- Jing Tang
- Department of Stomatology, Jingzhou Central Hospital, The Second Clinical Medical College, Yangtze University, Jingzhou, China
| | - Zhao-Yang Liu
- Department of Stomatology, Jingzhou Central Hospital, The Second Clinical Medical College, Yangtze University, Jingzhou, China
| | - Yi Tang
- Department of Stomatology, Jingzhou Central Hospital, The Second Clinical Medical College, Yangtze University, Jingzhou, China
| | - Yan Wang
- Department of Otolaryngology, 549615The People's Hospital of Rizhao, Rizhao, China
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287
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Zhang X, Guerrero J, Croft AS, Albers CE, Häckel S, Gantenbein B. Spheroid-Like Cultures for Expanding Angiopoietin Receptor-1 (aka. Tie2) Positive Cells from the Human Intervertebral Disc. Int J Mol Sci 2020; 21:E9423. [PMID: 33322051 DOI: 10.3390/ijms21249423] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Revised: 11/30/2020] [Accepted: 12/03/2020] [Indexed: 12/11/2022] Open
Abstract
Lower back pain is a leading cause of disability worldwide. The recovery of nucleus pulposus (NP) progenitor cells (NPPCs) from the intervertebral disc (IVD) holds high promise for future cell therapy. NPPCs are positive for the angiopoietin-1 receptor (Tie2) and possess stemness capacity. However, the limited Tie2+ NPC yield has been a challenge for their use in cell-based therapy for regenerative medicine. In this study, we attempted to expand NPPCs from the whole NP cell population by spheroid-formation assay. Flow cytometry was used to quantify the percentage of NPPCs with Tie2-antibody in human primary NP cells (NPCs). Cell proliferation was assessed using the population doublings level (PDL) measurement. Synthesis and presence of extracellular matrix (ECM) from NPC spheroids were confirmed by quantitative Polymerase Chain Reaction (qPCR), immunostaining, and microscopy. Compared with monolayer, the spheroid-formation assay enriched the percentage of Tie2+ in NPCs’ population from ~10% to ~36%. Moreover, the spheroid-formation assay also inhibited the proliferation of the Tie2- NPCs with nearly no PDL. After one additional passage (P) using the spheroid-formation assay, NPC spheroids presented a Tie2+ percentage even further by ~10% in the NPC population. Our study concludes that the use of a spheroid culture system could be successfully applied to the culture and expansion of tissue-specific progenitors.
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Chang KC, Chen RY, Wang YC, Hung LY, Medeiros LJ, Chen YP, Chen TY, Yang JC, Chiang PM. Stem cell characteristics promote aggressiveness of diffuse large B-cell lymphoma. Sci Rep 2020; 10:21342. [PMID: 33288848 DOI: 10.1038/s41598-020-78508-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Accepted: 11/24/2020] [Indexed: 11/09/2022] Open
Abstract
Diffuse large B-cell lymphoma (DLBCL) may present initially in bone marrow, liver and spleen without any lymphadenopathy (referred to as BLS-type DLBCL), which is aggressive and frequently associated with hemophagocytic syndrome. Its tumorigenesis and molecular mechanisms warrant clarification. By gene microarray profiling with bioinformatics analysis, we found higher expression of the stem cell markers HOXA9 and NANOG, as well as BMP8B, CCR6 and S100A8 in BLS-type than conventional DLBCL. We further validated expression of these markers in a large cohort of DLBCL including BLS-type cases and found that expression of HOXA9 and NANOG correlated with inferior outcome and poor prognostic parameters. Functional studies with gene-overexpressed and gene-silenced DLBCL cell lines showed that expression of NANOG and HOXA9 promoted cell viability and inhibited apoptosis through suppression of G2 arrest in vitro and enhanced tumor formation and hepatosplenic infiltration in a tail-vein-injected mouse model. Additionally, HOXA9-transfected tumor cells showed significantly increased soft-agar clonogenic ability and tumor sphere formation. Interestingly, B cells with higher CCR6 expression revealed a higher chemotactic migration for CCL20. Taken together, our findings support the concept that tumor or precursor cells of BLS-type DLBCL are attracted by chemotaxis and home to the bone marrow, where the microenvironment promotes the expression of stem cell characteristics and aggressiveness of tumor cells.
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He D, Zhang X, Tu J. Diagnostic significance and carcinogenic mechanism of pan-cancer gene POU5F1 in liver hepatocellular carcinoma. Cancer Med 2020; 9:8782-8800. [PMID: 32978904 PMCID: PMC7724499 DOI: 10.1002/cam4.3486] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 08/30/2020] [Accepted: 09/10/2020] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND The prognostic and clinicopathological significance of POU Class 5 Homeobox 1 (POU5F1) among various cancers are disputable heretofore. The diagnostic value and functional mechanism of POU5F1 in liver hepatocellular carcinoma (LIHC) have not been studied thoroughly. METHODS An integrative strategy of meta-analysis, bioinformatics, and wet-lab approach was used to explore the diagnostic and prognostic significance of POU5F1 in various types of tumors, especially in LIHC. Meta-analysis was utilized to investigate the impact of POU5F1 on prognosis and clinicopathological parameters in various cancers. The expression level and diagnostic value of POU5F1 were assessed by qPCR in plasma collected from LIHC patients and controls. The correlation between POU5F1 and tumor infiltrating immune cells (TIICs) in LIHC was evaluated by CIBERSORT. Gene set enrichment analysis (GSEA) was performed based on TCGA. Hub genes and related pathways were identified on the basis of co-expression genes of POU5F1. RESULTS Elevated POU5F1 was associated with poor OS, DFS, RFS, and DSS in various cancers. POU5F1 was confirmed as an independent risk factor for LIHC and correlated with tumor occurrence, stage, and invasion depth. The combination of POU5F1 and AFP in plasma was with high diagnostic validity (AUC = 0.902, p < .001). Specifically, the level of POU5F1 was correlated with infiltrating levels of B cells, T cells, dendritic cells, and monocytes in LIHC. GSEA indicated that POU5F1 participated in multiple cancer-related pathways and cell proliferation pathways. Moreover, CBX3, CCHCR1, and NFYC were filtered as the central hub genes of POU5F1. CONCLUSION Our study identified POU5F1 as a pan-cancer gene that could not only be a prognostic and diagnostic biomarker in various cancers, especially in LIHC, but functionally carcinogenic in LIHC.
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Affiliation(s)
- Dingdong He
- Center for Gene Diagnosis, and Clinical LabZhongnan Hospital of Wuhan UniversityWuhanChina
| | - Xiaokang Zhang
- Center for Gene Diagnosis, and Clinical LabZhongnan Hospital of Wuhan UniversityWuhanChina
| | - Jiancheng Tu
- Center for Gene Diagnosis, and Clinical LabZhongnan Hospital of Wuhan UniversityWuhanChina
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Bernardes de Jesus B, Neves BM, Ferreira M, Nóbrega-Pereira S. Strategies for Cancer Immunotherapy Using Induced Pluripotency Stem Cells-Based Vaccines. Cancers (Basel) 2020; 12:E3581. [PMID: 33266109 DOI: 10.3390/cancers12123581] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Revised: 11/24/2020] [Accepted: 11/27/2020] [Indexed: 12/14/2022] Open
Abstract
Despite improvements in cancer therapy, metastatic solid tumors remain largely incurable. Immunotherapy has emerged as a pioneering and promising approach for cancer therapy and management, and in particular intended for advanced tumors unresponsive to current therapeutics. In cancer immunotherapy, components of the immune system are exploited to eliminate cancer cells and treat patients. The recent clinical successes of immune checkpoint blockade and chimeric antigen receptor T cell therapies represent a turning point in cancer treatment. Despite their potential success, current approaches depend on efficient tumor antigen presentation which are often inaccessible, and most tumors turn refractory to current immunotherapy. Patient-derived induced pluripotent stem cells (iPSCs) have been shown to share several characteristics with cancer (stem) cells (CSCs), eliciting a specific anti-tumoral response when injected in rodent cancer models. Indeed, artificial cellular reprogramming has been widely compared to the biogenesis of CSCs. Here, we will discuss the state-of-the-art on the potential implication of cellular reprogramming and iPSCs for the design of patient-specific immunotherapeutic strategies, debating the similarities between iPSCs and cancer cells and introducing potential strategies that could enhance the efficiency and therapeutic potential of iPSCs-based cancer vaccines.
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291
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Yu J, Li S, Xu Z, Guo J, Li X, Wu Y, Zheng J, Sun X. CDX2 inhibits epithelial-mesenchymal transition in colorectal cancer by modulation of Snail expression and β-catenin stabilisation via transactivation of PTEN expression. Br J Cancer 2021; 124:270-80. [PMID: 33239678 DOI: 10.1038/s41416-020-01148-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 08/21/2020] [Accepted: 10/15/2020] [Indexed: 02/07/2023] Open
Abstract
Background Emerging evidence suggests the involvement of caudal-related homoeobox transcription factor 2 (CDX2) in tumorigenesis of various cancers. Although CDX2 functions in cancer invasion and metastasis, fewer studies focus on the role of CDX2 during the induction of epithelial–mesenchymal transition (EMT) in colorectal cancer (CRC). Methods Immunohistochemical analysis of CDX2 was performed. A series of in vitro and in vivo experiments were conducted to reveal the role of CDX2 in the invasion and metastasis of CRC. Results CDX2 was downregulated in CRC tissues and reduced CDX2 correlated with poor prognosis. Knockdown of CDX2 promoted colon cancer cell invasion in vitro and facilitated liver metastasis in vivo with inducing EMT phenotypes. Further investigation indicated that CDX2 retarded Akt and GSK-3β phosphorylation, and thereby diminished Snail expression, β-catenin stabilisation and nuclear translocation. The depletion of β-catenin neutralised the regulation of Slug and ZEB1 by CDX2 knockdown. Mechanistically, CDX2 antagonised PI3K/Akt activity in CRC by modulating PTEN expression. CDX2 directly bound to the promoter of PTEN and transactivated its expression. Conclusions Our study first uncovered that CDX2 inhibits EMT and metastasis of CRC by regulation of Snail expression and β-catenin stabilisation via transactivation of PTEN expression. ![]()
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Taylor L, Kerr ID, Coyle B. Y-Box Binding Protein-1: A Neglected Target in Pediatric Brain Tumors? Mol Cancer Res 2021; 19:375-87. [DOI: 10.1158/1541-7786.mcr-20-0655] [Citation(s) in RCA: 1] [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] [Received: 07/29/2020] [Revised: 10/21/2020] [Accepted: 11/20/2020] [Indexed: 11/16/2022]
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293
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Rampias T. Exploring the Eco-Evolutionary Dynamics of Tumor Subclones. Cancers (Basel) 2020; 12:cancers12113436. [PMID: 33228073 PMCID: PMC7699358 DOI: 10.3390/cancers12113436] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Accepted: 11/17/2020] [Indexed: 11/16/2022] Open
Abstract
Mutational processes constantly shape the cancer genome and defects in DNA repair pathways of tumor cells facilitate the accumulation of genomic alterations [...].
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Affiliation(s)
- Theodoros Rampias
- Biomedical Research Foundation of the Academy of Athens, Basic Research Center, 11527 Athens, Greece
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294
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Dong G, Ma G, Wu R, Liu J, Liu M, Gao A, Li X, A J, Liu X, Zhang Z, Zhang B, Fu L, Dong JT. ZFHX3 Promotes the Proliferation and Tumor Growth of ER-Positive Breast Cancer Cells Likely by Enhancing Stem-Like Features and MYC and TBX3 Transcription. Cancers (Basel) 2020; 12:cancers12113415. [PMID: 33217982 PMCID: PMC7698617 DOI: 10.3390/cancers12113415] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [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: 10/27/2020] [Revised: 11/10/2020] [Accepted: 11/12/2020] [Indexed: 12/23/2022] Open
Abstract
Simple Summary Breast cancer is a common malignancy, but the understanding of its cellular and molecular mechanisms is limited. The ZFHX3 transcription factor regulates mammary epithelial cells’ proliferation and differentiation by interacting with estrogen and progesterone receptors. Both these receptors play crucial roles in breast cancer development, but whether ZFHX3 also impacts breast cancer is unknown. In this study, the authors aim to determine if ZFHX3 promotes breast cancer cells’ proliferation and tumor growth and explore the underlying cellular and molecular mechanisms. Higher ZFHX3 expression is associated with worse patient survival in breast cancer, ZFHX3 promotes the proliferation and tumor growth of breast cancer cells, and several breast cancer stem cell factors appear to be involved in the role of ZFHX3 in breast cancer growth. The findings suggest that ZFHX3 is a novel oncogenic molecule promoting breast cancer development. Such a molecule could provide novel opportunities for the treatment of breast cancer. Abstract Breast cancer is a common malignancy, but the understanding of its cellular and molecular mechanisms is limited. ZFHX3, a transcription factor with many homeodomains and zinc fingers, suppresses prostatic carcinogenesis but promotes tumor growth of liver cancer cells. ZFHX3 regulates mammary epithelial cells’ proliferation and differentiation by interacting with estrogen and progesterone receptors, potent breast cancer regulators. However, whether ZFHX3 plays a role in breast carcinogenesis is unknown. Here, we found that ZFHX3 promoted the proliferation and tumor growth of breast cancer cells in culture and nude mice; and higher expression of ZFHX3 in human breast cancer specimens was associated with poorer prognosis. The knockdown of ZFHX3 in ZFHX3-high MCF-7 cells decreased, and ZFHX3 overexpression in ZFHX3-low T-47D cells increased the proportion of breast cancer stem cells (BCSCs) defined by mammosphere formation and the expression of CD44, CD24, and/or aldehyde dehydrogenase 1. Among several transcription factors that have been implicated in BCSCs, MYC and TBX3 were transcriptionally activated by ZFHX3 via promoter binding, as demonstrated by luciferase-reporter and ChIP assays. These findings suggest that ZFHX3 promotes breast cancer cells’ proliferation and tumor growth likely by enhancing BCSC features and upregulating MYC, TBX3, and others.
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Affiliation(s)
- Ge Dong
- Department of Genetics and Cell Biology, College of Life Sciences, Nankai University, 94 Weijin Road, Tianjin 300071, China; (G.D.); (G.M.); (J.L.); (M.L.); (A.G.); (X.L.); (J.A.); (L.F.)
| | - Gui Ma
- Department of Genetics and Cell Biology, College of Life Sciences, Nankai University, 94 Weijin Road, Tianjin 300071, China; (G.D.); (G.M.); (J.L.); (M.L.); (A.G.); (X.L.); (J.A.); (L.F.)
| | - Rui Wu
- Department of Human Cell Biology and Genetics, School of Medicine, Southern University of Science and Technology, 1088 Xueyuan Blvd, Shenzhen 518055, China; (R.W.); (X.L.); (Z.Z.)
| | - Jinming Liu
- Department of Genetics and Cell Biology, College of Life Sciences, Nankai University, 94 Weijin Road, Tianjin 300071, China; (G.D.); (G.M.); (J.L.); (M.L.); (A.G.); (X.L.); (J.A.); (L.F.)
| | - Mingcheng Liu
- Department of Genetics and Cell Biology, College of Life Sciences, Nankai University, 94 Weijin Road, Tianjin 300071, China; (G.D.); (G.M.); (J.L.); (M.L.); (A.G.); (X.L.); (J.A.); (L.F.)
- Department of Human Cell Biology and Genetics, School of Medicine, Southern University of Science and Technology, 1088 Xueyuan Blvd, Shenzhen 518055, China; (R.W.); (X.L.); (Z.Z.)
| | - Ang Gao
- Department of Genetics and Cell Biology, College of Life Sciences, Nankai University, 94 Weijin Road, Tianjin 300071, China; (G.D.); (G.M.); (J.L.); (M.L.); (A.G.); (X.L.); (J.A.); (L.F.)
| | - Xiawei Li
- Department of Genetics and Cell Biology, College of Life Sciences, Nankai University, 94 Weijin Road, Tianjin 300071, China; (G.D.); (G.M.); (J.L.); (M.L.); (A.G.); (X.L.); (J.A.); (L.F.)
- Department of Human Cell Biology and Genetics, School of Medicine, Southern University of Science and Technology, 1088 Xueyuan Blvd, Shenzhen 518055, China; (R.W.); (X.L.); (Z.Z.)
| | - Jun A
- Department of Genetics and Cell Biology, College of Life Sciences, Nankai University, 94 Weijin Road, Tianjin 300071, China; (G.D.); (G.M.); (J.L.); (M.L.); (A.G.); (X.L.); (J.A.); (L.F.)
- Department of Human Cell Biology and Genetics, School of Medicine, Southern University of Science and Technology, 1088 Xueyuan Blvd, Shenzhen 518055, China; (R.W.); (X.L.); (Z.Z.)
| | - Xiaoyu Liu
- Department of Human Cell Biology and Genetics, School of Medicine, Southern University of Science and Technology, 1088 Xueyuan Blvd, Shenzhen 518055, China; (R.W.); (X.L.); (Z.Z.)
| | - Zhiqian Zhang
- Department of Human Cell Biology and Genetics, School of Medicine, Southern University of Science and Technology, 1088 Xueyuan Blvd, Shenzhen 518055, China; (R.W.); (X.L.); (Z.Z.)
| | - Baotong Zhang
- Emory Winship Cancer Institute, Department of Hematology and Medical Oncology, Emory University School of Medicine, 1365-C Clifton Road, Atlanta, GA 30322, USA;
| | - Liya Fu
- Department of Genetics and Cell Biology, College of Life Sciences, Nankai University, 94 Weijin Road, Tianjin 300071, China; (G.D.); (G.M.); (J.L.); (M.L.); (A.G.); (X.L.); (J.A.); (L.F.)
| | - Jin-Tang Dong
- Department of Human Cell Biology and Genetics, School of Medicine, Southern University of Science and Technology, 1088 Xueyuan Blvd, Shenzhen 518055, China; (R.W.); (X.L.); (Z.Z.)
- Correspondence:
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Abstract
Bone is a mechanosensitive organ that provides strength and support. Many bone cells, various pathways, and signaling molecules coordinate bone metabolism and also determine the course of bone diseases, such as osteoporosis, osteonecrosis, osteopenia, etc. Osteoporosis is caused by increased bone resorption and reduced bone formation due to the changes in the level of different proteins and RNAs in osteoclast or/and osteoblasts. The available therapeutic interventions can significantly reduce bone resorption or enhance bone formation, but their prolonged use has deleterious side effects. Therefore, the use of non-coding RNAs as therapeutics has emerged as an interesting field of research. Despite advancements in the molecular field, not much is known about the role of long non-coding RNAs (lncRNAs) and circular RNAs (circRNAs) in bone homeostasis and osteoporosis. Therefore, in this article, we summarize the role of lncRNAs and circRNAs in different bone cells and osteoporosis so that it might help in the development of osteoporotic therapeutics.
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Affiliation(s)
- Suryaji Patil
- Lab for Bone Metabolism, Xi'an Key Laboratory of Special Medicine and Health Engineering, Key Lab for Space Biosciences and Biotechnology, Research Center for Special Medicine and Health Systems Engineering, NPU-UAB Joint Laboratory for Bone Metabolism, School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
| | - Kai Dang
- Lab for Bone Metabolism, Xi'an Key Laboratory of Special Medicine and Health Engineering, Key Lab for Space Biosciences and Biotechnology, Research Center for Special Medicine and Health Systems Engineering, NPU-UAB Joint Laboratory for Bone Metabolism, School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
| | - Xin Zhao
- School of Pharmacy, Shaanxi Institute of International Trade & Commerce, Xi'an, China
| | - Yongguang Gao
- Lab for Bone Metabolism, Xi'an Key Laboratory of Special Medicine and Health Engineering, Key Lab for Space Biosciences and Biotechnology, Research Center for Special Medicine and Health Systems Engineering, NPU-UAB Joint Laboratory for Bone Metabolism, School of Life Sciences, Northwestern Polytechnical University, Xi'an, China.,Department of Chemistry, Tangshan Normal University, Tangshan, China
| | - Airong Qian
- Lab for Bone Metabolism, Xi'an Key Laboratory of Special Medicine and Health Engineering, Key Lab for Space Biosciences and Biotechnology, Research Center for Special Medicine and Health Systems Engineering, NPU-UAB Joint Laboratory for Bone Metabolism, School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
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296
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Basati G, Mohammadpour H, Emami Razavi A. Association of High Expression Levels of SOX2, NANOG, and OCT4 in Gastric Cancer Tumor Tissues with Progression and Poor Prognosis. J Gastrointest Cancer 2020; 51:41-47. [PMID: 30628031 DOI: 10.1007/s12029-018-00200-x] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [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] [Indexed: 12/14/2022]
Abstract
BACKGROUND Expression of the essential regulator genes, SOX2, NANOG, and OCT4, so-called as stemness factors, is prerequisite for the tumorigenic capability of cancer stem cells (CSCs) and their potential role in the formation and progression of various human cancers. METHODS In this study, the expression levels of SOX2, NANOG, and OCT4 were quantified by a qRT-PCR method in 100 gastric cancer tumor tissues vs the paired adjacent normal tissues. Then, the relationship between the expression of the three genes in gastric cancer tumor tissues and the clinicopathological characteristics and overall survival of patients was investigated. RESULTS Higher expression levels of SOX2, NANOG, and OCT4 were found in gastric cancer tumor tissues compared with those in paired adjacent normal tissues (P = 0.0001). Overexpression of the mentioned genes in gastric cancer tumor tissues was resolved to be significantly associated with tumor size (P < 0.05), TNM stage (P = 0.001), tumor grade (P < 0.01), and shortened overall survival time (P = 0.0001). CONCLUSIONS These findings indicted that the stemness factors SOX2, NANOG, and OCT4 are significantly overexpressed in gastric cancer and may serve as potential biomarkers of gastric cancer progression and prognosis.
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Affiliation(s)
- Gholam Basati
- Biotechnology and Medicinal Plants Research Center, Ilam University of Medical Sciences, Ilam, Iran
| | - Hadiseh Mohammadpour
- Cancer Research Center, Cancer Institute of Iran, Tehran University of Medical Sciences, Tehran, Iran
| | - Amirnader Emami Razavi
- Iran National Tumor Bank, Cancer Biology Research Center, Cancer Institute of Iran., Tehran University of Medical Sciences, Keshavarz Boulevard, Tehran, Iran.
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297
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Wang H, Liu W, Luo B. The roles of miRNAs and lncRNAs in Epstein-Barr virus associated epithelial cell tumors. Virus Res 2020; 291:198217. [PMID: 33137402 DOI: 10.1016/j.virusres.2020.198217] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 10/24/2020] [Accepted: 10/26/2020] [Indexed: 12/12/2022]
Abstract
Epstein-Barr virus (EBV) infection is highly prevalent in the population and is known to be associated with a variety of human tumors, such as nasopharyngeal carcinoma, gastric cancer, and lymphoma; however, the mechanisms of EBV carcinogenesis remain unclear. Recent studies have revealed that many non-coding RNAs participate in the regulation of proliferation, migration, invasion, and other processes in EBV-associated tumor, and the interaction between ncRNAs and the potential target genes has gradually become a research hotspot. Therefore, here, we discuss the expression and roles of ncRNAs in EBV-associated epithelial tumors.
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Affiliation(s)
- Hanqing Wang
- Department of Pathogenic Biology, School of Basic Medicine, Qingdao University, Shandong, 266021, China.
| | - Wen Liu
- Department of Pathogenic Biology, School of Basic Medicine, Qingdao University, Shandong, 266021, China.
| | - Bing Luo
- Department of Pathogenic Biology, School of Basic Medicine, Qingdao University, Shandong, 266021, China.
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298
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Tang J, Xiao X, Jiang Y, Tian Y, Peng Z, Yang M, Xu Z, Gong G. miR-3 Encoded by Hepatitis B Virus Downregulates PTEN Protein Expression and Promotes Cell Proliferation. J Hepatocell Carcinoma 2020; 7:257-269. [PMID: 33154957 PMCID: PMC7605949 DOI: 10.2147/jhc.s271091] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [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: 07/14/2020] [Accepted: 10/15/2020] [Indexed: 12/24/2022] Open
Abstract
Purpose Chronic hepatitis B virus (HBV) infection is a key determinant of hepatocellular carcinoma (HCC). However, the mechanism by which HBV contributes to the development of HCC remains to be further explored. HBV-encoded miR-3 (HBV-miR-3) is a newly discovered microRNA that can affect the replication of HBV, but its influence on host genes is unclear. The tumor suppressor phosphatase and tensin homolog (PTEN) is expressed at low levels in most cancer cells. How HBV-miR-3 acts on PTEN to induce tumorigenesis has not been clarified. Materials and Methods PTEN protein expression was evaluated in HBV-miR-3-transfected cells and HBV-related liver cancer and paracancerous tissues. A luciferase reporter assay was employed to identify the HBV-miR-3 binding site on the 3ʹ-untranslated region (3ʹ-UTR) of PTEN. Cell apoptosis was assessed by flow cytometry. Cell proliferation was evaluated by colony formation assays. Transwell assays were used to detect cancer cell invasion. Results HBV-miR-3 was identified only in HBV-replicating HCC cells and HBV-infected patients. HBV-miR-3 expression in liver cancer tissues was higher than that in paracancerous tissues, and the corresponding PTEN expression was significantly decreased. Wild-type HBV-miR-3 bound to the 3ʹ-UTR of PTEN and downregulated its protein expression in a dose-dependent manner. Moreover, the inhibition of HBV-miR-3 rescued PTEN protein expression. Furthermore, HBV-miR-3 reduced liver cancer cell apoptosis, enhanced cell invasion, and promoted cell proliferation. Conclusion HBV-miR-3 binds to the 3ʹ-UTR of PTEN mRNA and downregulates PTEN protein expression, thereby reducing cell apoptosis and enhancing cell invasion and proliferation. These results indicate that HBV-miR-3 contributes to the development of HBV-related HCC and may be a therapeutic target for this cancer.
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Affiliation(s)
- Jian Tang
- The Department of Infectious Disease, The Second Xiangya Hospital of Central South University, Changsha, People's Republic of China
| | - Xinqiang Xiao
- The Department of Infectious Disease, The Second Xiangya Hospital of Central South University, Changsha, People's Republic of China
| | - Yongfang Jiang
- The Department of Infectious Disease, The Second Xiangya Hospital of Central South University, Changsha, People's Republic of China
| | - Yi Tian
- The Department of Infectious Disease, The Second Xiangya Hospital of Central South University, Changsha, People's Republic of China
| | - Zhongtian Peng
- The Department of Infectious Disease, The First Affiliated Hospital of South China University, Henyang, People's Republic of China
| | - Meichan Yang
- The Department of Infectious Disease, The Second Xiangya Hospital of Central South University, Changsha, People's Republic of China
| | - Zhenyu Xu
- The Department of Infectious Disease, The Second Xiangya Hospital of Central South University, Changsha, People's Republic of China
| | - Guozhong Gong
- The Department of Infectious Disease, The Second Xiangya Hospital of Central South University, Changsha, People's Republic of China
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299
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Lin Y, Wang L, Luo W, Zhou X, Chen Y, Yang K, Liao J, Wu D, Cai L. CYLD Promotes Apoptosis of Nasopharyngeal Carcinoma Cells by Regulating NDRG1. Cancer Manag Res 2020; 12:10639-10649. [PMID: 33149672 PMCID: PMC7604974 DOI: 10.2147/cmar.s268216] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [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: 06/17/2020] [Accepted: 10/02/2020] [Indexed: 12/15/2022] Open
Abstract
Purpose Nasopharyngeal carcinoma (NPC) is among the most common malignancies derived from the epithelium of the nasopharynx. To date, the regulatory networks involved in NPC have not been fully identified. Previous studies revealed multiple loss-of-function mutations in NPC and specifically in cylindromatosis lysine 63 deubiquitinase (CYLD); however, the exact role of CYLD in NPC progression and its potential mechanism remains unclear. Methods We performed immunohistochemical (IHC) staining and real-time quantitative polymerase chain reaction (qPCR) to measure CYLD expression in NPC tissues, and Western blot was conducted to determine CYLD levels in NPC cell lines. Cell proliferation was detected by CCK8 assay and colony formation analysis, and apoptosis was determined by Annexin V/propidium iodide staining. Potential targets of CYLD were verified by co-immunoprecipitation and mass spectrometry. Xenograft assay was conducted to confirm the role of CYLD in vivo. Results We found that CYLD levels were significantly decreased in both NPC tissues and cell lines, and that CYLD overexpression inhibited NPC cell proliferation and promoted apoptosis. Additionally, we revealed that CYLD bound and upregulated N-Myc downstream regulated 1 (NDRG1), and that silencing NDRG1 abolished the tumor-suppressor effect of CYLD on NPC cells. Furthermore, CYLD suppressed tumor growth in xenograft mice models. Conclusion These results suggest CYLD as a tumor suppressor, potential biomarker for diagnosing NPC, and therapeutic target.
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Affiliation(s)
- Yanling Lin
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, People's Republic of China
| | - Lingzhi Wang
- First Clinical Medical College, Nanfang Hospital, Southern Medical University, Guangzhou, People's Republic of China
| | - Wenxiao Luo
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, People's Republic of China
| | - Xiaohan Zhou
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, People's Republic of China
| | - Yuting Chen
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, People's Republic of China
| | - Kaifan Yang
- Department of Orthopaedics and Traumatology, Nanfang Hospital, Southern Medical University, Guangzhou, People's Republic of China
| | - Jinrong Liao
- Second Clinical Medical College, Zhujiang Hospital, Southern Medical University, Guangzhou, People's Republic of China
| | - Dehua Wu
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, People's Republic of China
| | - Longmei Cai
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, People's Republic of China
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300
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Wu Y, Wang D, Wei F, Xiong F, Zhang S, Gong Z, Shi L, Li X, Xiang B, Ma J, Deng H, He Y, Liao Q, Zhang W, Li X, Li Y, Guo C, Zeng Z, Li G, Xiong W. EBV-miR-BART12 accelerates migration and invasion in EBV-associated cancer cells by targeting tubulin polymerization-promoting protein 1. FASEB J 2020; 34:16205-16223. [PMID: 33094864 DOI: 10.1096/fj.202001508r] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 08/26/2020] [Accepted: 09/29/2020] [Indexed: 12/16/2022]
Abstract
Epstein-Barr virus (EBV) infection leads to cancers with an epithelial origin, such as nasopharyngeal cancer and gastric cancer, as well as multiple blood cell-based malignant tumors, such as lymphoma. Interestingly, EBV is also the first virus found to carry genes encoding miRNAs. EBV encodes 25 types of pre-miRNAs which are finally processed into 44 mature miRNAs. Most EBV-encoded miRNAs were found to be involved in the occurrence and development of EBV-related tumors. However, the function of EBV-miR-BART12 remains unclear. The findings of the current study revealed that EBV-miR-BART12 binds to the 3'UTR region of Tubulin Polymerization-Promoting Protein 1 (TPPP1) mRNA and downregulates TPPP1, thereby promoting the invasion and migration of EBV-related cancers, such as nasopharyngeal cancer and gastric cancer. The mechanism underlying this process was found to be the inhibition of TPPP1 by EBV-miRNA-BART12, which, in turn, inhibits the acetylation of α-tubulin, and promotes the dynamic assembly of microtubules, remodels the cytoskeleton, and enhances the acetylation of β-catenin. β-catenin activates epithelial to mesenchymal transition (EMT). These two processes synergistically promote the invasion and metastasis of tumor cells. To the best of our knowledge, this is the first study to reveal the role of EBV-miRNA-BART12 in the development of EBV-related tumors as well as the mechanism underlying this process, and suggests potential targets and strategies for the treatment of EBV-related tumors.
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Affiliation(s)
- Yingfen Wu
- NHC Key Laboratory of Carcinogenesis, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
| | - Dan Wang
- Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, China
| | - Fang Wei
- Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, China
| | - Fang Xiong
- Department of Stomatology, Xiangya Hospital, Central South University, Changsha, China
| | - Shanshan Zhang
- Department of Stomatology, Xiangya Hospital, Central South University, Changsha, China
| | - Zhaojian Gong
- Department of Oral and Maxillofacial Surgery, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Lei Shi
- Department of Oral and Maxillofacial Surgery, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Xiayu Li
- Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Disease Genome Research Center, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Bo Xiang
- Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, China
| | - Jian Ma
- Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, China
| | - Hao Deng
- Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Disease Genome Research Center, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Yi He
- NHC Key Laboratory of Carcinogenesis, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
| | - Qianjin Liao
- NHC Key Laboratory of Carcinogenesis, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
| | - Wenling Zhang
- Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, China
| | - Xiaoling Li
- NHC Key Laboratory of Carcinogenesis, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China.,Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, China
| | - Yong Li
- Department of Medicine, Dan L Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX, USA
| | - Can Guo
- Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, China
| | - Zhaoyang Zeng
- NHC Key Laboratory of Carcinogenesis, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China.,Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, China
| | - Guiyuan Li
- NHC Key Laboratory of Carcinogenesis, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China.,Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, China
| | - Wei Xiong
- NHC Key Laboratory of Carcinogenesis, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China.,Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, China
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