51
|
Bin X, Zhu C, Tang Y, Li R, Ding Q, Xia W, Tang Y, Tang X, Yao D, Tang A. Nomogram Based on Clinical and Radiomics Data for Predicting Radiation-induced Temporal Lobe Injury in Patients with Non-metastatic Stage T4 Nasopharyngeal Carcinoma. Clin Oncol (R Coll Radiol) 2022; 34:e482-e492. [PMID: 36008245 DOI: 10.1016/j.clon.2022.07.007] [Citation(s) in RCA: 1] [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] [Received: 03/07/2022] [Revised: 06/19/2022] [Accepted: 07/21/2022] [Indexed: 01/31/2023]
Abstract
AIMS To use pre-treatment magnetic resonance imaging-based radiomics data with clinical data to predict radiation-induced temporal lobe injury (RTLI) in nasopharyngeal carcinoma (NPC) patients with stage T4/N0-3/M0 within 5 years after radiotherapy. MATERIALS AND METHODS This study retrospectively examined 98 patients (198 temporal lobes) with stage T4/N0-3/M0 NPC. Participants were enrolled into a training cohort or a validation cohort in a ratio of 7:3. Radiomics features were extracted from pre-treatment magnetic resonance imaging that were T1-and T2-weighted. Spearman rank correlation, the t-test and the least absolute shrinkage and selection operator (LASSO) algorithm were used to select significant radiomics features; machine-learning models were used to generate radiomics signatures (Rad-Scores). Rad-Scores and clinical factors were integrated into a nomogram for prediction of RTLI. Nomogram discrimination was evaluated using receiver operating characteristic analysis and clinical benefits were evaluated using decision curve analysis. RESULTS Participants were enrolled into a training cohort (n = 139) or a validation cohort (n = 59). In total, 3568 radiomics features were initially extracted from T1-and T2-weighted images. Age, Dmax, D1cc and 16 stable radiomics features (six from T1-weighted and 10 from T2-weighted images) were identified as independent predictive factors. A greater Rad-Score was associated with a greater risk of RTLI. The nomogram showed good discrimination, with a C-index of 0.85 (95% confidence interval 0.79-0.92) in the training cohort and 0.82 (95% confidence interval 0.71-0.92) in the validation cohort. CONCLUSION We developed models for the prediction of RTLI in patients with stage T4/N0-3/M0 NPC using pre-treatment radiomics data and clinical data. Nomograms from these pre-treatment data improved the prediction of RTLI. These results may allow the selection of patients for earlier clinical interventions.
Collapse
Affiliation(s)
- X Bin
- Department of Otolaryngology-Head and Neck Surgery, First Affiliated Hospital, Guangxi Medical University, Nanning, Guangxi, China
| | - C Zhu
- Department of Radiation Oncology, People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, China
| | - Y Tang
- Department of Neurology, First Affiliated Hospital, Guangxi Medical University, Nanning, Guangxi, China
| | - R Li
- Interdisciplinary Institute of Neuroscience and Technology, Zhejiang University Hangzhou, Zhejiang Province, China; Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Q Ding
- Institute of Natural Sciences, Shanghai Jiao Tong University, Shanghai, China
| | - W Xia
- Department of Otolaryngology-Head and Neck Surgery, First Affiliated Hospital, Guangxi Medical University, Nanning, Guangxi, China
| | - Y Tang
- Department of Radiology, First Affiliated Hospital, Guangxi Medical University, Nanning, Guangxi, China
| | - X Tang
- Department of Otolaryngology-Head and Neck Surgery, First Affiliated Hospital, Guangxi Medical University, Nanning, Guangxi, China
| | - D Yao
- Department of Otolaryngology-Head and Neck Surgery, First Affiliated Hospital, Guangxi Medical University, Nanning, Guangxi, China
| | - A Tang
- Department of Otolaryngology-Head and Neck Surgery, First Affiliated Hospital, Guangxi Medical University, Nanning, Guangxi, China.
| |
Collapse
|
52
|
Tang Y, Jiang G, Porrachia M, Ignacio C, Wong L, Zhong D, Du J, Cotsakis B, Maske S, de la Parra Polina E, Simermeyer T, Li D, Woodworth B, Kirchherr J, Allard B, Clohosey M, Whitehill G, Eron J, Archin N, Joseph S, Bar K, Chaillon A, Gianella S, Margolis D, Jiang G. OP 1.4 – 00053 Definitive evidence of a persistent HIV reservoir in human brain myeloid cells despite ART. J Virus Erad 2022. [DOI: 10.1016/j.jve.2022.100099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
|
53
|
Li Y, Wang X, Xiao Z, Liao G, Wang J, Li X, Tang Y, He C, Li L. Efficient removal of TBBPA with a Z-scheme BiVO 4-(rGO-Cu 2O) photocatalyst under sunlight irradiation. Chemosphere 2022; 308:136259. [PMID: 36057348 DOI: 10.1016/j.chemosphere.2022.136259] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 08/16/2022] [Accepted: 08/27/2022] [Indexed: 05/12/2023]
Abstract
In this study, reduced graphene oxide (rGO) was used to fabricate a Z-scheme BiVO4-(rGO-Cu2O) photocatalyst for the degradation of Tetrabromobisphenol A (TBBPA) under sunlight irradiation. The photocatalyst was synthesized using a three-step method BiVO4-(rGO-Cu2O) photocatalyst with an rGO loading of 1% and (rGO-Cu2O) to BiVO4 ratio of 50% achieved the best degradation effect for TBBPA removal. Electron paramagnetic resonance spectroscopy (EPR) confirmed that the charge transfer path of BiVO4-(rGO-Cu2O) follows that of Z-scheme photocatalysts. Moreover, the addition of rGO increases the charge transfer efficiency. High performance liquid chromatography-mass spectrometry (HPLC-MS) was used to detect and analyze intermediate products, allowing the proposal of the main degradation pathway of TBBPA. Photogenerated electrons of BiVO4-(rGO-Cu2O) were then transferred into the conduction band of Cu2O. Cu2O is located in the surface layer, which has the most effective contact area with pollutants, and therefore has a good outcome for the photocatalytic reduction of TBBPA. Photogenerated electrons (e-) and hydroxyl radicals (∙OH) are the main factors affecting TBBPA degradation. The degradation process of TBBPA includes electron reduction debromination, hydroxylation, and β-cleavage. In our work, BiVO4-(rGO-Cu2O) was successfully synthesized to degrade TBBPA; this study brings forth a novel approach for the degradation of halogenated organic pollutants using a Z-scheme photocatalytic composite.
Collapse
Affiliation(s)
- Yaoyi Li
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, School of Environment, South China Normal University, Higher Education Mega Center, Guangzhou, 510006, China; School of Environment, South China Normal University, Guangzhou, 510006, China; Guangdong Provincial Engineering Technology Research Center for Drinking Water Safety, Guangzhou, 510006, China; Guangdong Provincial Key Lab of Functional Materials for Environmental Protection, Guangzhou, 510006, China
| | - Xi Wang
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, School of Environment, South China Normal University, Higher Education Mega Center, Guangzhou, 510006, China; School of Environment, South China Normal University, Guangzhou, 510006, China; Guangdong Provincial Engineering Technology Research Center for Drinking Water Safety, Guangzhou, 510006, China; Guangdong Provincial Key Lab of Functional Materials for Environmental Protection, Guangzhou, 510006, China.
| | - Zijun Xiao
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, School of Environment, South China Normal University, Higher Education Mega Center, Guangzhou, 510006, China
| | - Gaozu Liao
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, School of Environment, South China Normal University, Higher Education Mega Center, Guangzhou, 510006, China; School of Environment, South China Normal University, Guangzhou, 510006, China; Guangdong Provincial Engineering Technology Research Center for Drinking Water Safety, Guangzhou, 510006, China; Guangdong Provincial Key Lab of Functional Materials for Environmental Protection, Guangzhou, 510006, China
| | - Jing Wang
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, School of Environment, South China Normal University, Higher Education Mega Center, Guangzhou, 510006, China; School of Environment, South China Normal University, Guangzhou, 510006, China; Guangdong Provincial Engineering Technology Research Center for Drinking Water Safety, Guangzhou, 510006, China; Guangdong Provincial Key Lab of Functional Materials for Environmental Protection, Guangzhou, 510006, China.
| | - Xukai Li
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, School of Environment, South China Normal University, Higher Education Mega Center, Guangzhou, 510006, China; School of Environment, South China Normal University, Guangzhou, 510006, China; Guangdong Provincial Engineering Technology Research Center for Drinking Water Safety, Guangzhou, 510006, China; Guangdong Provincial Key Lab of Functional Materials for Environmental Protection, Guangzhou, 510006, China
| | - Yiming Tang
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, School of Environment, South China Normal University, Higher Education Mega Center, Guangzhou, 510006, China; School of Environment, South China Normal University, Guangzhou, 510006, China; Guangdong Provincial Engineering Technology Research Center for Drinking Water Safety, Guangzhou, 510006, China; Guangdong Provincial Key Lab of Functional Materials for Environmental Protection, Guangzhou, 510006, China
| | - Chun He
- Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology(Sun Yat-sen University) , China
| | - Laisheng Li
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, School of Environment, South China Normal University, Higher Education Mega Center, Guangzhou, 510006, China; School of Environment, South China Normal University, Guangzhou, 510006, China; Guangdong Provincial Engineering Technology Research Center for Drinking Water Safety, Guangzhou, 510006, China; Guangdong Provincial Key Lab of Functional Materials for Environmental Protection, Guangzhou, 510006, China
| |
Collapse
|
54
|
Tang Y, Pan C, Wang H, Ouyang Z. Speed determinacy of travelling waves for a three-component lattice Lotka-Volterra competition system. J Biol Dyn 2022; 16:340-353. [PMID: 34319222 DOI: 10.1080/17513758.2021.1958934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Accepted: 07/09/2021] [Indexed: 06/13/2023]
Abstract
In this paper, the invasive speed selection of the monostable travelling wave for a three-component lattice Lotka-Volterra competition system is studied via the upper and lower solution method, as well as the comparison principle. By constructing several special upper and lower solutions, we establish sufficient conditions such that the linear or nonlinear selection is realized.
Collapse
Affiliation(s)
- Y Tang
- School of Mathematics and Physics, University of South China, Hengyang, People's Republic of China
| | - C Pan
- School of Mathematics and Physics, University of South China, Hengyang, People's Republic of China
| | - H Wang
- School of Mathematics and Physics, University of South China, Hengyang, People's Republic of China
| | - Z Ouyang
- School of Mathematics and Physics, University of South China, Hengyang, People's Republic of China
| |
Collapse
|
55
|
Hu L, Tang Y, Xu Q. Generalized varying-coefficient additive model for locally stationary time series. J STAT COMPUT SIM 2022. [DOI: 10.1080/00949655.2022.2135708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Lixia Hu
- School of Statistics and Mathematics, Interdisciplinary Research Institute of Data Science, Shanghai Lixin University of Accounting and Finance, Shanghai, People's Republic of China
| | - Yiming Tang
- School of Statistics and Mathematics, Interdisciplinary Research Institute of Data Science, Shanghai Lixin University of Accounting and Finance, Shanghai, People's Republic of China
| | - Qunfang Xu
- Business School of Ningbo University, Ningbo, People's Republic of China
| |
Collapse
|
56
|
Lu N, Xu L, Zhao Z, Tang Y, Zhang H, Yang Z, Liu T, Zhang X, Li M, Miao L, Jing H, Chang Q, Chi Y, Wang J, Wang S, Yu S. Preliminary Results of Phase II Study on Preoperative Intensity-Modulated Radiotherapy with Concurrent Tyrosine Kinase Inhibitor for Patients with Non-Metastatic Extremity and Trunk Soft Tissue Sarcoma. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
57
|
Tang Y. Circadian Clock Gene BMAL1 and Hypoxia Inducible Factor HIF-1α Study on the Effect on Proliferation, Migration and Radiosensitivity of Nasopharyngeal Carcinoma Cells. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.2136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
|
58
|
Zhao Y, Tang Y, Jin J. Phase II Study of Stereotactic Body Radiation Therapy (SBRT) in Patients with Lung and/or Liver Oligometastases from Colorectal Cancer (CRC): KRAS Gene Status and Metastatic Site Matter. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
59
|
Song Y, Huang Z, Fang H, Tang Y, Jing H, Song Y, Jin J, Liu Y, Chen B, Tang Y, Qi S, Lu N, Li N, LI Y, Wang S. Comparison of Breast-Conserving Surgery vs. Mastectomy for Patients with Breast Cancer after Neoadjuvant Chemotherapy. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
60
|
Sun G, Wen G, Zhang Y, Tang Y, Jing H, Zhao X, Chen S, Jin J, Song Y, Liu Y, Fang H, Tang Y, Qi S, Li N, Chen B, Lu N, LI Y, Wang S. Development and External Validation of a Nomogram to Predict the Benefit of Regional Node Irradiation in Patients with pT1-2N1M0 Breast Cancer. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
|
61
|
Tang Y, Wang X. Prognostic Analysis of Patients with TRG1 after Neoadjuvant Chemoradiotherapy in Rectal Cancer: Tumor Regression Pattern Will Affect Survival. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
62
|
Zhao X, Tang Y, Wu H, Wang X, Guo Q, Zhang Y, Shi M, Wen G, Cheng J, Wang H, Liu M, Song Y, Liu Y, Chen B, Qi S, Li N, Tang Y, Lu N, Lu N, Zhang N, LI Y, Wang S. Relationship between Age and Prognosis in Patients with pT1-2N1 breast cancer: 50 years may be a Reasonable Cut-Off for Radiation Therapy Decision-Making. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
|
63
|
Tang Y, Yao X. SYNTHESIS OF A NEW LAYERED Zn(II) COORDINATION POLYMER VIA DUAL-LIGAND STRATEGY: LUMINESCENCE SENSING FOR DETECTION OF Fe3+ ION. J STRUCT CHEM+ 2022. [DOI: 10.1134/s002247662211004x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
|
64
|
Zhou J, Tang Y, Duan J, Sheng L, Yang Q, Wang X. Response and Survival in Patients of BCLC Stage C Hepatocellular Carcinoma Receiving SBRT and Immunotherapy. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
65
|
Tang Y, Ma H, Zhou H, Liu Z, Zhang H, Zhang W, Cai Y, Li Y, Wei L, Liu S, Wang W, Fang H, Song Y, Chen B, Lu N, Jing H, Qi S, Zhang W, Liu Y, Wang S, Wang X, LI Y, Jin J. Preliminary Results of a Prospective Phase II Study of Total Neoadjuvant Therapy for Locally Advanced Rectal Cancer. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
66
|
Zhao X, Fang H, Jing H, Tang Y, Song Y, Liu Y, Jin J, Chen B, Qi S, Tang Y, Lu N, Li N, Li Y, Wang S. Radiation-Induced Hypothyroidism in Patients with Breast Cancer after Hypofractionated Radiotherapy: A Prospective Cohort Study. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
|
67
|
Tang Y, Yao XQ. SYNTHESIS, CRYSTAL STRUCTURE, AND LUMINESCENT PROPERTY OF A NEW HETEROMETALLIC COMPOUND BASED ON A LARGE π-CONJUGATED DICARBOXYLATE LIGAND. J STRUCT CHEM+ 2022. [DOI: 10.1134/s0022476622110191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
68
|
Tang Y, Zhao R, Qiao C, Li X, Bai X, Peng X. [P2X7R promotes migration and invasion of Lewis lung cancer cells by activating the AKT signaling pathway]. Nan Fang Yi Ke Da Xue Xue Bao 2022; 42:1495-1502. [PMID: 36329583 PMCID: PMC9637501 DOI: 10.12122/j.issn.1673-4254.2022.10.08] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
OBJECTIVE To explore the role of P2X7 receptor (P2X7R) in migration and invasion of mouse Lewis lung cancer (LLC) cells and examine the tumorigenic ability of LLC cells in P2X7R-knockout mice. METHODS RT-PCR was used to examine P2X7R mRNA expression in LLC cells. LLC cells were treated with ATP (as a P2X7R agonist) or 2'- 3'- O- (4-benzoyl- benzoyl)-ATP (BzATP) (a P2X7R agonist) with or without pretreatment with P2X7R antagonist oxATP or A438079. The changes in migration and invasive abilities of the cells were evaluated using wound healing assay and Transwell assay; Western blotting was performed to determine the activation level of the key proteins in the AKT signaling pathway. The effects of BzATP, A438079, and LY294002 (a inhibitor of the PI3K/AKT pathway) on migration and invasion of LLC cells were also examined. In wild-type (WT) and P2X7R knockout (P2X7-/-) C57BL/6 mice, the growth of subcutaneous LLC cell xenografts were observed by measuring tumor volume and weight. RESULTS P2X7R expression was detected in LLC cells. Treatment with P2X7R agonist significantly enhanced migration and invasion abilities of LLC cells, and this effect was inhibited by application of P2X7R antagonists (P < 0.001). Western blotting showed that BzATP treatment of LLC cells significantly increased the expression level of p-AKT protein, which was obviously lowered by treatment with P2X7R antagonist (P < 0.01). P2X7R antagonist strongly inhibited BzATP-induced enhancement of LLC cell migration and invasion (P < 0.001). In the tumor- bearing mice, the tumor volume and weight were significantly lower in P2X7-/- mice than in WT mice (P < 0.05). CONCLUSION P2X7R promotes migration and invasion of LLC cells by activating the AKT signaling pathway, and LLC cells show lowered tumorigenic capacity in P2X7-/- mice.
Collapse
Affiliation(s)
- Y Tang
- School of Medical Laboratory, Weifang Medical University, Key Laboratory of Clinical Laboratory Diagnostics of Shandong Province, Weifang 261053, China
| | - R Zhao
- School of Medical Laboratory, Weifang Medical University, Key Laboratory of Clinical Laboratory Diagnostics of Shandong Province, Weifang 261053, China
| | - C Qiao
- School of Medical Laboratory, Weifang Medical University, Key Laboratory of Clinical Laboratory Diagnostics of Shandong Province, Weifang 261053, China
| | - X Li
- School of Medical Laboratory, Weifang Medical University, Key Laboratory of Clinical Laboratory Diagnostics of Shandong Province, Weifang 261053, China
| | - X Bai
- School of Medical Laboratory, Weifang Medical University, Key Laboratory of Clinical Laboratory Diagnostics of Shandong Province, Weifang 261053, China
| | - X Peng
- School of Medical Laboratory, Weifang Medical University, Key Laboratory of Clinical Laboratory Diagnostics of Shandong Province, Weifang 261053, China
| |
Collapse
|
69
|
Tang Y. Improved Methods of Making Standardized “Ready to Eat” Chinese Food: Individual Quick Frozen with 95% Cooked. J Acad Nutr Diet 2022. [DOI: 10.1016/j.jand.2022.08.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
70
|
Tang Y, Meng X, Yu X, Shang H, Chen S, Liao L, Dong J. Retraction Note to: Inhibition of microRNA‑875‑5p promotes radioiodine uptake in poorly differentiated thyroid carcinoma cells by upregulating sodium-iodide symporter. J Endocrinol Invest 2022; 45:2025. [PMID: 35836040 DOI: 10.1007/s40618-022-01852-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Y Tang
- Department of Endocrinology, Shandong Provincial Qianfoshan Hospital, Shandong University, No. 16766, Jingshi Road, Jinan, 250014, Shandong Province, People's Republic of China
- Department of Endocrinology, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, 264000, People's Republic of China
| | - X Meng
- Department of Endocrinology, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, 264000, People's Republic of China
| | - X Yu
- Department of Endocrinology, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, 264000, People's Republic of China
| | - H Shang
- Department of Endocrinology, Shandong Provincial Qianfoshan Hospital, Shandong University, No. 16766, Jingshi Road, Jinan, 250014, Shandong Province, People's Republic of China
| | - S Chen
- Department of Endocrinology, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, 264000, People's Republic of China
| | - L Liao
- Department of Endocrinology, Shandong Provincial Qianfoshan Hospital, Shandong University, No. 16766, Jingshi Road, Jinan, 250014, Shandong Province, People's Republic of China.
| | - J Dong
- Department of Endocrinology, Qilu Hospital of Shandong University, No. 107, Wenhua West Road, Jinan, 250012, Shandong Province, People's Republic of China.
| |
Collapse
|
71
|
Li F, Chen Y, Liu X, Tang Y, Dong X, Wei G. Atomistic Insights into A315E Mutation-Enhanced Pathogenicity of TDP-43 Core Fibrils. ACS Chem Neurosci 2022; 13:2743-2754. [PMID: 36053560 DOI: 10.1021/acschemneuro.2c00416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
The aggregation of TAR DNA-binding protein of 43 kDa (TDP-43) into fibrillary deposits is implicated in amyotrophic lateral sclerosis (ALS), and some hereditary mutations localized in the low complexity domain (LCD) facilitate the formation of pathogenic TDP-43 fibrils. A recent cryo-EM study reported the atomic-level structures of the A315E TDP-43 LCD (residues 288-319, TDP-43288-319) core fibril in which the protofilaments have R-shaped structures and hypothesized that A315E U-shaped protofilaments can readily convert to R-shaped protofilaments compared to the wild-type (WT) ones. There are no atomic structures of WT protofilaments available yet. Herein, we performed extensive all-atom explicit-solvent molecular dynamics simulations on A315E and WT protofilaments starting from both the cryo-EM-determined R-shaped and our constructed U-shaped structures. Our simulations show that WT protofilaments also adopt the R-shaped structures but are less stable than their A315E counterparts. Except for R293-E315 salt bridges, N312-F316 hydrophobic interactions and F316-F316 π-π stacking interactions are also crucial for the stabilization of the neck region of the R-shaped A315E protofilaments. The loss of R293-E315 salt bridges and the weakened interactions of N312-F316 and F316-F316 result in the reduced stability of the R-shaped WT protofilaments. Simulations starting from U-shaped folds reveal that A315E protofilaments can spontaneously convert to the cryo-EM-derived R-shaped protofilaments, whereas WT protofilaments convert to R-shape-like structures with remodeled neck regions. The R-shape-like WT protofilaments could act as intermediate states slowing down the U-to-R transition. This study reveals that A315E mutation can not only enhance the structural stability of the R-shaped TDP-43288-319 protofilaments but also promote the U-to-R transition, which provides atomistic insights into the A315E mutation-enhanced TDP-43 pathogenicity in ALS.
Collapse
Affiliation(s)
- Fangying Li
- Department of Physics, State Key Laboratory of Surface Physics, and Key Laboratory for Computational Physical Sciences (Ministry of Education), Fudan University, Shanghai 200438, China
| | - Yujie Chen
- Department of Physics, State Key Laboratory of Surface Physics, and Key Laboratory for Computational Physical Sciences (Ministry of Education), Fudan University, Shanghai 200438, China
| | - Xianshi Liu
- Department of Physics, State Key Laboratory of Surface Physics, and Key Laboratory for Computational Physical Sciences (Ministry of Education), Fudan University, Shanghai 200438, China
| | - Yiming Tang
- Department of Physics, State Key Laboratory of Surface Physics, and Key Laboratory for Computational Physical Sciences (Ministry of Education), Fudan University, Shanghai 200438, China
| | - Xuewei Dong
- Department of Physics, State Key Laboratory of Surface Physics, and Key Laboratory for Computational Physical Sciences (Ministry of Education), Fudan University, Shanghai 200438, China
| | - Guanghong Wei
- Department of Physics, State Key Laboratory of Surface Physics, and Key Laboratory for Computational Physical Sciences (Ministry of Education), Fudan University, Shanghai 200438, China
| |
Collapse
|
72
|
Zhao YF, Verkhratsky A, Tang Y, Illes P. Astrocytes and major depression: The purinergic avenue. Neuropharmacology 2022; 220:109252. [PMID: 36122663 DOI: 10.1016/j.neuropharm.2022.109252] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [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: 06/09/2022] [Revised: 08/19/2022] [Accepted: 09/06/2022] [Indexed: 10/14/2022]
Abstract
Major depressive disorder (MDD) is one of the most prevalent psychiatric illnesses worldwide which impairs the social functioning of the afflicted patients. Astrocytes promote homeostasis of the CNS and provide defense against various types of harmful influences. Increasing evidence suggests that the number, morphology and function of astrocytes are deteriorated in the depressed brain and the malfunction of the astrocytic purinergic system appears to participate in the pathophysiology of MDD. Adenosine 5'-triphosphate (ATP) released from astrocytes modulates depressive-like behavior in animal models and probably also clinical depression in patients. Astrocytes possess purinergic receptors, such as adenosine A2A receptors (Rs), and P2X7, P2Y1, and P2Y11Rs, which mediate neuroinflammation, neuro(glio)transmission, and synaptic plasticity in depression-relevant areas of the brain (e.g. medial prefrontal cortex, hippocampus, amygdala nuclei). By contrast, astrocytic A1Rs are neuroprotective and immunosuppressive. In the present review, we shall discuss the release of purines from astrocytes, and the expression/function of astrocytic purinergic receptors. Subsequently, we shall review in more detail novel evidence indicating that the dysregulation of astrocytic purinergic signaling actively contributes to the pathophysiology of depression and shall discuss possible therapeutic options based on knowledge recently acquired in this field.
Collapse
Affiliation(s)
- Y F Zhao
- School of Acupuncture and Tuina, Chengdu University of Traditional Chinese Medicine, Chengdu, 610075, China; International Collaborative Centre on Big Science Plan for Purinergic Signalling, Chengdu University of Traditional Chinese Medicine, Chengdu, 610075, China
| | - A Verkhratsky
- International Collaborative Centre on Big Science Plan for Purinergic Signalling, Chengdu University of Traditional Chinese Medicine, Chengdu, 610075, China; Faculty of Life Sciences, The University of Manchester, Manchester, M13 9PL, UK; Department of Stem Cell Biology, State Research Institute Centre for Innovative Medicine, LT, 01102, Vilnius, Lithuania
| | - Y Tang
- School of Acupuncture and Tuina, Chengdu University of Traditional Chinese Medicine, Chengdu, 610075, China; International Collaborative Centre on Big Science Plan for Purinergic Signalling, Chengdu University of Traditional Chinese Medicine, Chengdu, 610075, China.
| | - P Illes
- School of Acupuncture and Tuina, Chengdu University of Traditional Chinese Medicine, Chengdu, 610075, China; International Collaborative Centre on Big Science Plan for Purinergic Signalling, Chengdu University of Traditional Chinese Medicine, Chengdu, 610075, China; Rudolf Boehm Institute for Pharmacology and Toxicology, University of Leipzig, 04107, Leipzig, Germany.
| |
Collapse
|
73
|
Zhang Y, Ren M, Tang Y, Cui X, Cui J, Xu C, Qie H, Tan X, Liu D, Zhao J, Wang S, Lin A. Immobilization on anionic metal(loid)s in soil by biochar: A meta-analysis assisted by machine learning. J Hazard Mater 2022; 438:129442. [PMID: 35792428 DOI: 10.1016/j.jhazmat.2022.129442] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 06/20/2022] [Accepted: 06/20/2022] [Indexed: 06/15/2023]
Abstract
Metal pollution in soil has become one of the most serious environmental problems in China. Biochar is one of the most widely used remediation agents for soil metal pollution. However, the literature does not provide a consistent picture of the performance of biochar on the immobilization of anionic metal(loid)s, especially arsenic, in soil. To obtain a baseline understanding on the interactions of metals and biochar, 597 data records on four metal(loid)s (As, Cr, Sb and V) were collected from 70 publications for this meta-analysis, and the results are highlighted below. Biochar has a significant immobilization effect on anionic metal(loid)s in soil and reduces the bioavailability of these metals to plants. Subgroup analysis found that biochar could decrease the potential mobility of Cr, Sb and V, but the immobilization effect on As was not always consistent. Meanwhile, biochar pH and soil pH are the most key factors affecting the immobilization effect. To summarize, biochar can effectively immobilize Cr, Sb and V in soil, but more attention should be given to As immobilization in future applications. By regulating the properties of biochar and appropriate modification, anionic metal(loid)s in soil can be immobilized more effectively. Hence, both of the soil quality and crop quality can be improved.
Collapse
Affiliation(s)
- Yinjie Zhang
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Meng Ren
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Yiming Tang
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Xuedan Cui
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Jun Cui
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Congbin Xu
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hantong Qie
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Xiao Tan
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Dongpo Liu
- College of Ecological Environment, Institute of Disaster Prevention, Hebei 065201, China
| | - Jiashun Zhao
- College of Chemical and Environmental Engineering, North China Institute of Science and Technology, Hebei 065201, China
| | - Shuguang Wang
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
| | - Aijun Lin
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
| |
Collapse
|
74
|
Li J, Pu X, Zhang B, Zhang J, Mok T, Nakagawa K, Rosell R, Cheng Y, Zhou X, Migliorino M, Niho S, Lee K, Corral J, Pluzanski A, Li J, Linke R, Pan F, Tang Y, Tan W, Wu L. EP08.02-159 Post Hoc Analyses of Dacomitinib-Associated Skin Disorders and Efficacy in the ARCHER 1050 Study. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
|
75
|
Li R, Hu X, Yu Y, Xu W, Chen D, Zhu X, Tang Y, Yao L, Qin J, Fang J, Liu Z, Fang Z. Anatase quantum dots decorated silica/carbon lamellas for removal of antipsychotic drugs via adsorption-photocatalysis and toxicity evaluation. Chemosphere 2022; 303:134972. [PMID: 35588884 DOI: 10.1016/j.chemosphere.2022.134972] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 04/14/2022] [Accepted: 05/12/2022] [Indexed: 06/15/2023]
Abstract
In this work, discrete quantum dots of crystallized anatase TiO2 are successfully anchored on carbon nanosheets containing amorphous SiO2 via templated self-assembly and pyrolysis routes. The novel hybrid photocatalyst of TiO2/C/SiO2 exhibits well coupled adsorption and visible light photocatalysis on chlorpromazine (CPZ) and the rate constants are 0.0223 and 0.0198 min-1, respectively. The direct photocatalytic degradation of CPZ under static conditions reaches 91.1% within 3 h while a removal rate of 31.4% for CPZ could be retained under dynamic flow conditions, and the improved performance could be attributed to enhanced adsorption via SiO2/C and highly exposure of TiO2 QDs surface. Based on the trapping experiments, ESR, LC-MS, and toxicity evaluation, O2- free radicals are identified as main reactive species for CPZ degradation along three possible pathways, with reduced toxicities for its intermediates. The cell viability tests of photocatalytic-degraded solutions and the catalyst exhibit negligible toxicities for both intermediates and the material, suggesting the novel composite of TiO2/C/SiO2 as an environmental friendly photocatalyst for pharmaceutical wastewater treatment.
Collapse
Affiliation(s)
- Runqi Li
- School of Environment, South China Normal University, University Town, Guangzhou, 510006, China
| | - Xingyu Hu
- School of Environment, South China Normal University, University Town, Guangzhou, 510006, China
| | - Yutang Yu
- School of Environment, South China Normal University, University Town, Guangzhou, 510006, China
| | - Weicheng Xu
- School of Environmental and Chemical Engineering, Foshan University, Foshan, 528000, China
| | - Dongdong Chen
- School of Environment, South China Normal University, University Town, Guangzhou, 510006, China
| | - Ximiao Zhu
- School of Environment, South China Normal University, University Town, Guangzhou, 510006, China
| | - Yiming Tang
- School of Environment, South China Normal University, University Town, Guangzhou, 510006, China
| | - Lang Yao
- School of Environment, South China Normal University, University Town, Guangzhou, 510006, China
| | - Jingjun Qin
- School of Environment, South China Normal University, University Town, Guangzhou, 510006, China
| | - Jianzhang Fang
- School of Environment, South China Normal University, University Town, Guangzhou, 510006, China; Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou, 510006, China; Guangdong Technology Research Center for Ecological Management and Remediation of Urban Water System, Guangzhou, 510006, China
| | - Zhang Liu
- Division of Environment and Sustainability, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China.
| | - Zhanqiang Fang
- School of Environment, South China Normal University, University Town, Guangzhou, 510006, China; Guangdong Technology Research Center for Ecological Management and Remediation of Urban Water System, Guangzhou, 510006, China
| |
Collapse
|
76
|
Zhao H, Du S, Zhu Z, Jiang L, Che X, Qian H, Song J, Liu D, Zhang Y, Zhang P, Sun Y, Zhang W, Tang Y. 724P Anti-PD-1 antibody SHR-1210 combined with apatinib as adjuvant treatment in patients with hepatocellular carcinoma at high risk of recurrence after radical resection: Preliminary results from a multicenter, randomized, controlled phase II trial. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
|
77
|
Zhang K, Liu X, Tang Y, Liu Z, Yi Q, Wang L, Geng B, Xia Y. Fluid Shear Stress Promotes Osteoblast Proliferation and Suppresses Mitochondrial-Mediated Osteoblast Apoptosis Through the miR-214-3p-ATF4 Signaling Axis. Physiol Res 2022. [DOI: 10.33549/physiolres.934917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
MicroRNAs (miRNAs) play vital roles in bone metabolism and participate in the mechanically induced bone alterations. The underlying molecular mechanisms by which fluid shear stress (FSS) regulate the proliferative and apoptotic phenotypic changes of osteoblasts remain elusive. The study aimed to investigate the regulatory effects of FSS on osteoblast proliferative and apoptotic phenotypes and the roles of miR-214-3p-ATF4 (activating transcription factor 4) signaling axis in the mechanomodulation processes. FSS promoted the proliferative activity of osteoblasts and suppressed mitochondrial-mediated osteoblast apoptosis. FSS decreased miR-214-3p expression and increased ATF4 expression in MC3T3-E1 osteoblasts. MiR-214-3p inhibited osteoblast proliferative activity and promoted mitochondrial-mediated osteoblast apoptosis. Overexpression of miR-214-3p attenuated FSS-enhanced osteoblast proliferation and FSS-suppressed mitochondrial-mediated osteoblast apoptosis. We validated that ATF4 acted as a target gene of miR-214-3p. Moreover, miR-214 3p regulated osteoblast proliferation and apoptosis through targeting ATF4. Taken together, our study proved that FSS could suppress mitochondrial-mediated osteoblast apoptosis and promote osteoblast proliferation through the miR-214-3p-ATF4 signaling axis.
Collapse
Affiliation(s)
- K Zhang
- Department of Orthopaedics, Lanzhou University Second Hospital, Lanzhou Gansu, China, Orthopaedics Key Laboratory of Gansu Province, Lanzhou Gansu, China
| | | | | | | | | | | | | | | |
Collapse
|
78
|
Huang P, Zhu J, Li H, Wang Y, Tang Y, Liu Q. [Bioinformatic analysis of differentially expressed proteins in the dorsal raphe nucleus of rats after continuous treatment with olanzapine]. Nan Fang Yi Ke Da Xue Xue Bao 2022; 42:1221-1229. [PMID: 36073222 DOI: 10.12122/j.issn.1673-4254.2022.08.15] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To analyze the differentially expressed proteins in the dorsal raphe nucleus of rats treated with olanzapine and explore the possible mechanism of metabolic disorders in the early stage of olanzapine treatment. METHODS Twenty male and 20 female SD rats were both randomized equally into olanzapine group and control group for daily treatment with olanzapine and saline for 4 weeks, respectively. One hour after the last treatment, the dorsal raphe nucleus of the rats was dissected for proteomic analysis using iTRAQ combined with liquid chromatography-tandem mass spectrometry (LC-MS/MS). GO, KEGG pathway, COG, pathways and protein interaction network analyses of the differentially expressed proteins were performed. Several target genes were selected from the proteomic list, and their expression levels in the dorsal raphe nucleus of another 24 mice with identical grouping and treatment using real time real-time quantitative PCR and Western blotting. RESULTS A total of 214 differentially expressed proteins were identified in the dorsal raphe nucleus of olanzapine-treated mice, including 72 unregulated and 142 downregulated proteins. GO analyses showed that the differentially expressed proteins were enriched in cellular process, biological regulation, metabolic process, response to stimulus, multicellular organismal process, bindings, catalytic activity, molecular function regulator and transcription regulator activity. KEGG analysis suggested that these proteins were enriched in fluid shear stress and atherosclerosis, serotonergic synapse, butanoate metabolism, thyroid hormone synthesis and IL-17 signaling pathway. The differentially expressed proteins Cav1, Hsp90b1, Canx, Gnai1, MAPK9, and LOC685513 were located at the nodes of the protein-protein interaction network in close relation with metabolic disorders. In olanzapine-treated mice, the expression of Hmgcs2, a negative regulator of apoptosis, was significantly down-regulated in the dorsal raphe nucleus, where the expressions of Pla2g4e, Slc6a4 and Gnai1 involved in serotonergic synapse were significantly upregulated. CONCLUSION In the early stage of treatment, olanzapine may contribute to the occurrence of metabolic disorders in rats by regulating the expressions of Cav1, Hsp90b1, Canx, Gnai1, MAPK9, LOC685513 (Gng14) and 5-HTR2 synapse-related proteins in the dorsal raphe nucleus.
Collapse
Affiliation(s)
- P Huang
- Department of Endocrinology, Jiujiang Fifth People's Hospital, Jiujiang 332000, China
| | - J Zhu
- Department of Endocrinology, Jiujiang Fifth People's Hospital, Jiujiang 332000, China
| | - H Li
- Department of Endocrinology, Jiujiang Fifth People's Hospital, Jiujiang 332000, China
| | - Y Wang
- Department of Endocrinology, Jiujiang Fifth People's Hospital, Jiujiang 332000, China
| | - Y Tang
- Department of Endocrinology, Jiujiang Fifth People's Hospital, Jiujiang 332000, China
| | - Q Liu
- Department of Endocrinology, Jiujiang Fifth People's Hospital, Jiujiang 332000, China
| |
Collapse
|
79
|
Yao Y, Tang Y, Zhou Y, Yang Z, Wei G. Baicalein exhibits differential effects and mechanisms towards disruption of α-synuclein fibrils with different polymorphs. Int J Biol Macromol 2022; 220:316-325. [PMID: 35981677 DOI: 10.1016/j.ijbiomac.2022.08.088] [Citation(s) in RCA: 8] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Revised: 07/30/2022] [Accepted: 08/11/2022] [Indexed: 11/05/2022]
Abstract
Parkinson's disease (PD) is the second most common neurodegenerative diseases with no cure yet and its major hallmark is α-synuclein fibrillary aggregates. The crucial role of α-synuclein aggregation in PD makes it an attractive target for potential disease-modifying therapies. Disaggregation of α-synuclein fibrils is considered as one of the promising therapeutic strategies to treat PD. The wild type (WT) and mutant α-synuclein fibrils exhibit different polymorphs and provide therapeutic targets for PD. Recent experiments reported that a flavonoid baicalein can disrupt WT α-synuclein fibrils. However, the underlying disruptive mechanism remains largely elusive, and whether BAC is capable of disrupting mutant α-synuclein fibrils is also unknown. Herein, we performed microsecond molecular dynamics simulations on cryo-EM-determined WT and two familial PD-associated mutant (E46K and H50Q) α-synuclein fibrils with and without baicalein. We find that baicalein destructs WT fibril by disrupting E46-K80 salt-bridge and β-sheets, and by remodeling the inter-protofilament interface. And baicalein can also damage E46K and H50Q mutant fibrils, but to different extents and via different mechanisms. The E46K fibril disruption is initiated from E61-K80 salt-bridge and N-terminal β-sheet, while the H50Q fibril disruption starts from the inter-protofilament interface and N-terminal β-sheet. These results reveal that disruptive effects and modes of baicalein on α-synuclein fibrils are polymorphism-dependent. This study suggests that baicalein may be a potential drug candidate to disrupt both WT and E46K/H50Q mutant α-synuclein fibrils and alleviate the pathological process of PD.
Collapse
Affiliation(s)
- Yifei Yao
- Department of Physics, State Key Laboratory of Surface Physics, Key Laboratory for Computational Physical Sciences (Ministry of Education), Fudan University, Shanghai 200438, People's Republic of China
| | - Yiming Tang
- Department of Physics, State Key Laboratory of Surface Physics, Key Laboratory for Computational Physical Sciences (Ministry of Education), Fudan University, Shanghai 200438, People's Republic of China
| | - Yun Zhou
- Department of Physics, State Key Laboratory of Surface Physics, Key Laboratory for Computational Physical Sciences (Ministry of Education), Fudan University, Shanghai 200438, People's Republic of China
| | - Zhongyuan Yang
- Department of Physics, State Key Laboratory of Surface Physics, Key Laboratory for Computational Physical Sciences (Ministry of Education), Fudan University, Shanghai 200438, People's Republic of China
| | - Guanghong Wei
- Department of Physics, State Key Laboratory of Surface Physics, Key Laboratory for Computational Physical Sciences (Ministry of Education), Fudan University, Shanghai 200438, People's Republic of China.
| |
Collapse
|
80
|
Misra R, Tang Y, Chen Y, Chakraborty P, Netti F, Vijayakanth T, Shimon LJW, Wei G, Adler-Abramovich L. Exploiting Minimalistic Backbone Engineered γ-Phenylalanine for the Formation of Supramolecular Co-Polymer. Macromol Rapid Commun 2022; 43:e2200223. [PMID: 35920234 DOI: 10.1002/marc.202200223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Revised: 07/07/2022] [Indexed: 11/09/2022]
Abstract
Ordered supramolecular hydrogels assembled by modified aromatic amino acids often exhibit low mechanical rigidity. Aiming to stabilize the hydrogel and understand the impact of conformational freedom and hydrophobicity on the self-assembly process, we designed two building blocks based on 9-fluorenyl-methoxycarbonyl-phenylalanine (Fmoc-Phe) gelator which contain two extra methylene units in the backbone, generating Fmoc-γPhe and Fmoc-(3-hydroxy)-γPhe. Fmoc-γPhe spontaneously assembled in aqueous media forming a hydrogel with exceptional mechanical and thermal stability. Moreover, Fmoc-(3-hydroxy)-γPhe, with an extra backbone hydroxyl group decreasing its hydrophobicity while maintaining some molecular flexibility, self-assembled into a transient fibrillar hydrogel, that later formed microcrystalline aggregates through phase transition. Molecular dynamics simulations and single crystal X-ray analyses revealed the mechanism underlying the two residues' distinct self-assembly behaviors. Finally, we demonstrated Fmoc-γPhe and Fmoc-(3-OH)-γPhe co-assembly to form a supramolecular hydrogel with notable mechanical properties. We believe that the understanding of the structure-assembly relationship will enable the design of new functional amino acid-based hydrogels. This article is protected by copyright. All rights reserved.
Collapse
Affiliation(s)
- Rajkumar Misra
- Department of Oral Biology, The Goldschleger School of Dental Medicine, Sackler Faculty of Medicine, the Center for Nanoscience and Nanotechnology, the Center for the Physics and Chemistry of Living Systems, Tel-Aviv University, Tel-Aviv, 69978, Israel.,Dept. of Med. Chem, NIPER Mohali, S.A.S. Nagar (Mohali), 160062, India
| | - Yiming Tang
- Department of Physics, State Key Laboratory of Surface Physics, Key Laboratory for Computational Physical Sciences (MOE) and Collaborative Innovation Center of Advanced Microstructures (Nanjing), Fudan University, Shanghai, 200433, P. R. China
| | - Yujie Chen
- Department of Physics, State Key Laboratory of Surface Physics, Key Laboratory for Computational Physical Sciences (MOE) and Collaborative Innovation Center of Advanced Microstructures (Nanjing), Fudan University, Shanghai, 200433, P. R. China
| | - Priyadarshi Chakraborty
- Department of Oral Biology, The Goldschleger School of Dental Medicine, Sackler Faculty of Medicine, the Center for Nanoscience and Nanotechnology, the Center for the Physics and Chemistry of Living Systems, Tel-Aviv University, Tel-Aviv, 69978, Israel
| | - Francesca Netti
- Department of Oral Biology, The Goldschleger School of Dental Medicine, Sackler Faculty of Medicine, the Center for Nanoscience and Nanotechnology, the Center for the Physics and Chemistry of Living Systems, Tel-Aviv University, Tel-Aviv, 69978, Israel
| | - Thangavel Vijayakanth
- The Shmunis School of Biomedicine and Cancer Research George S. Wise, Faculty of Life Sciences, Tel Aviv University, Tel Aviv, 6997801, Israel
| | - Linda J W Shimon
- Department of Chemical Research Support, The Weizmann Institute of Science, Rehovot, 7610001, Israel
| | - Guanghong Wei
- Department of Physics, State Key Laboratory of Surface Physics, Key Laboratory for Computational Physical Sciences (MOE) and Collaborative Innovation Center of Advanced Microstructures (Nanjing), Fudan University, Shanghai, 200433, P. R. China
| | - Lihi Adler-Abramovich
- Department of Oral Biology, The Goldschleger School of Dental Medicine, Sackler Faculty of Medicine, the Center for Nanoscience and Nanotechnology, the Center for the Physics and Chemistry of Living Systems, Tel-Aviv University, Tel-Aviv, 69978, Israel
| |
Collapse
|
81
|
Hessels C, Homan T, Deen N, Tang Y. Reduction kinetics of combusted iron powder using hydrogen. POWDER TECHNOL 2022. [DOI: 10.1016/j.powtec.2022.117540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
82
|
Abstract
The Bandler-Kohout subproduct (BKS) method is one of the two widely acknowledged fuzzy relational inference (FRI) schemes. The previous works related to its stability and robustness mainly concentrated on how the output values were changed with perturbation parameters of input values. However, the works on estimating oscillation bounds of output values with regard to varying limits of input, are lacking. In this study, we investigate the oscillation-bound estimation of perturbations for BKS. First, the BKS output variation scopes are acquired for interval perturbation, where the R -implication, ( S, N )-implication, QL-implication, and t -norm implication are adopted. Second, in allusion to the more sophisticated problem of the fuzzy reasoning chain with BKS, the oscillation bounds of BKS output resulting from input interval perturbation are offered. Third, we construct the upper and lower bounds of BKS output deviation originated in the simple perturbation of the input fuzzy set, in which the situations of one rule and multiple rules are both dissected. Finally, the stable properties of all these BKS strategies are confirmed. It is emphasized that interval perturbation and simple perturbation are more general ways to give expression describing the robustness issue, and the obtained oscillation bounds also deliver more detailed characterization of the output deviation along with the input perturbation. This study further validates the sound properties of the BKS method.
Collapse
|
83
|
Lao Z, Dong X, Liu X, Li F, Chen Y, Tang Y, Wei G. Insights into the Atomistic Mechanisms of Phosphorylation in Disrupting Liquid-Liquid Phase Separation and Aggregation of the FUS Low-Complexity Domain. J Chem Inf Model 2022; 62:3227-3238. [PMID: 35709363 DOI: 10.1021/acs.jcim.2c00414] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Fused in sarcoma (FUS), a nuclear RNA binding protein, can not only undergo liquid-liquid phase separation (LLPS) to form dynamic biomolecular condensates but also aggregate into solid amyloid fibrils which are associated with the pathology of amyotrophic lateral sclerosis and frontotemporal lobar degeneration diseases. Phosphorylation in the FUS low-complexity domain (FUS-LC) inhibits FUS LLPS and aggregation. However, it remains largely elusive what are the underlying atomistic mechanisms of this inhibitory effect and whether phosphorylation can disrupt preformed FUS fibrils, reversing the FUS gel/solid phase toward the liquid phase. Herein, we systematically investigate the impacts of phosphorylation on the conformational ensemble of the FUS37-97 monomer and dimer and the structure of the FUS37-97 fibril by performing extensive all-atom molecular dynamics simulations. Our simulations reveal three key findings: (1) phosphorylation shifts the conformations of FUS37-97 from the β-rich, fibril-competent state toward a helix-rich, fibril-incompetent state; (2) phosphorylation significantly weakens protein-protein interactions and enhances protein-water interactions, which disfavor FUS-LC LLPS as well as aggregation and facilitate the dissolution of the preformed FUS-LC fibril; and (3) the FUS37-97 peptide displays a high β-strand probability in the region spanning residues 52-67, and phosphorylation at S54 and S61 residues located in this region is crucial for the disruption of LLPS and aggregation of FUS-LC. This study may pave the way for ameliorating phase-separation-related pathologies via site-specific phosphorylation.
Collapse
Affiliation(s)
- Zenghui Lao
- Department of Physics, State Key Laboratory of Surface Physics, Key Laboratory for Computational Physical Sciences (Ministry of Education), Fudan University, Shanghai 200433, People's Republic of China
| | - Xuewei Dong
- Department of Physics, State Key Laboratory of Surface Physics, Key Laboratory for Computational Physical Sciences (Ministry of Education), Fudan University, Shanghai 200433, People's Republic of China
| | - Xianshi Liu
- Department of Physics, State Key Laboratory of Surface Physics, Key Laboratory for Computational Physical Sciences (Ministry of Education), Fudan University, Shanghai 200433, People's Republic of China
| | - Fangying Li
- Department of Physics, State Key Laboratory of Surface Physics, Key Laboratory for Computational Physical Sciences (Ministry of Education), Fudan University, Shanghai 200433, People's Republic of China
| | - Yujie Chen
- Department of Physics, State Key Laboratory of Surface Physics, Key Laboratory for Computational Physical Sciences (Ministry of Education), Fudan University, Shanghai 200433, People's Republic of China
| | - Yiming Tang
- Department of Physics, State Key Laboratory of Surface Physics, Key Laboratory for Computational Physical Sciences (Ministry of Education), Fudan University, Shanghai 200433, People's Republic of China
| | - Guanghong Wei
- Department of Physics, State Key Laboratory of Surface Physics, Key Laboratory for Computational Physical Sciences (Ministry of Education), Fudan University, Shanghai 200433, People's Republic of China
| |
Collapse
|
84
|
Qin J, Yu Z, Yao Y, Liang Y, Tang Y, Wang B. Susceptibility-weighted imaging cannot distinguish radionecrosis from recurrence in brain metastases after radiotherapy: a comparison with high-grade gliomas. Clin Radiol 2022; 77:e585-e591. [PMID: 35676103 DOI: 10.1016/j.crad.2022.05.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Accepted: 05/06/2022] [Indexed: 11/16/2022]
Abstract
AIM To explore the efficiency of susceptibility-weighted imaging (SWI) in the differential diagnosis of recurrence from radionecrosis in brain metastases (BM) and in high-grade gliomas (HGG). MATERIALS AND METHODS From September 2016 to November 2018, 56 patients with BM and 42 patients with HGG were included in this retrospective study. BM and HGG were assigned to the recurrence and radionecrosis groups according to their histopathology or follow-up results. The proportion of dark signal intensity (proDSI), which was defined as the area of dark signal on SWI or the enhancing area on contrast-enhanced T1-weighted imaging (T1WI), was calculated for each patient. Analysis of variance (ANOVA) with Tukey's honestly significant difference test was used for the repeat multiple comparisons. Receiver operating characteristic curve analysis was performed to validate the diagnostic performance. RESULTS For HGG, the proDSI in the recurrence group was significantly lower than that in the radionecrosis group (0.13 ± 0.05 versus 0.43 ± 0.11, p<0.001); however, for BM, no statistical difference was found between groups (0.49 ± 0.09 versus 0.46 ± 0.08, p=0.26). proDSI had the best diagnostic performance (AUC = 0.87, 95% CI: 0.76-0.98; sensitivity = 0.87; specificity = 0.88) for HGG, when a cut-off value of 0.21 was selected. CONCLUSIONS Semi-quantitative analysis using SWI is feasible for the differential diagnosis between recurrence and radionecrosis in HGG, but is not feasible in BM. Semi-quantitative assessment based on SWI should interpreted with caution in BM after radiotherapy in clinical practice.
Collapse
Affiliation(s)
- J Qin
- School of Medicine, Qingdao University, Qingdao, 266021, PR China; Department of Radiology, Rizhao Central Hospital, Rizhao, 276800, PR China
| | - Z Yu
- Department of Health Management Center, Qilu Hospital of Shandong University, Jinan, 250012, PR China; Nursing Theory & Practice Innovation Research Center of Shandong University, Jinan, 250012, PR China
| | - Y Yao
- Department of Radiology, Qilu Hospital of Shandong University, Jinan, 250012, PR China
| | - Y Liang
- Department of Radiology, Qilu Hospital of Shandong University, Jinan, 250012, PR China
| | - Y Tang
- Department of Radiology, Rizhao Central Hospital, Rizhao, 276800, PR China
| | - B Wang
- Department of Radiology, Qilu Hospital of Shandong University, Jinan, 250012, PR China.
| |
Collapse
|
85
|
Affiliation(s)
- Yiming Tang
- Key Laboratory of Knowledge Engineering with Big Data, Ministry of Education, School of Computer and Information, Hefei University of Technology, Hefei, China
| | - Witold Pedrycz
- Department of Electrical and Computer Engineering, University of Alberta, Edmonton, AB, Canada
| | - Fuji Ren
- Faculty of Engineering, Tokushima University, Tokushima, Japan
| |
Collapse
|
86
|
Chen J, Yuan Y, Peng W, Tang Y, Chen X, Wang Y, Shen H, Li R. [Application of three-dimensional visualization technique in laparoscopic D3 radical resection of right colon cancer]. Nan Fang Yi Ke Da Xue Xue Bao 2022; 42:760-765. [PMID: 35673922 DOI: 10.12122/j.issn.1673-4254.2022.05.19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To explore the clinical value of three-dimensional (3D) visualization technique in laparoscopic D3 radical resection of right colon cancer. METHODS We retrospectively analyzed the clinical data of 73 patients with right colon cancer undergoing laparoscopic D3 radical operation in our hospital between May, 2019 and March, 2021. Among these patients, 41 underwent enhanced CT examination with 3D visualization reconstruction to guide the actual operation, and 32 underwent enhanced CT examination only before the operation (control group). In 3D visualization group, we examined the coincidence rate between the 3D visualization model and the findings in surgical exploration of the anatomy and variations of the main blood vessels, supplying vessels of the tumor, and the tumor location, and the coincidence rate between the actual surgical plan for D3 radical resection of right colon cancer and the plan formulated based on the 3D model. The operative time, estimated blood loss, unexpected injury of blood vessels, number of harvested lymph nodes, mean time of the first flatus, complications, postoperative hospital stay and postoperative drainage volume were compared between the two groups. RESULTS The operative time was significantly shorter in 3D visualization group than in the control group (P < 0.05). The volume of blood loss, proportion of unexpected injury of blood vessel, the number of harvested lymph nodes, time of the first flatus, proportion of complications, postoperative hospital stay and postoperative drainage volume did not differ significantly between the two groups (P > 0.05). In the 3D visualization group, the 3D visualization model clearly displayed the shape and direction of the colon, the location of the tumor, the anatomy and variation of the main blood vessels and the blood vessels supplying the cancer, and showed a coincidence rate of 100% with the findings by surgical exploration. The surgical plan for D3 radical resection of right colon cancer was formulated based on the 3D model also showed a coincidence rate of 100% with the actual surgical plan. CONCLUSION The 3D visualization reconstruction technique allows clear visualization the supplying arteries of the tumor and their variations to improve the efficiency, safety and accuracy of laparoscopic D3 radical resection of right colon cancer.
Collapse
Affiliation(s)
- J Chen
- Department of Gastrointestinal Surgery, Dongguan People's Hospital Affiliated to Southern Medical University, Dongguan 523059, China
| | - Y Yuan
- Department of Gastroenterology, Dongguan People's Hospital Affiliated to Southern Medical University, Dongguan 523059, China
| | - W Peng
- Department of Gastrointestinal Surgery, Dongguan People's Hospital Affiliated to Southern Medical University, Dongguan 523059, China
| | - Y Tang
- Department of Gastrointestinal Surgery, Dongguan People's Hospital Affiliated to Southern Medical University, Dongguan 523059, China
| | - X Chen
- Department of Gastrointestinal Surgery, Dongguan People's Hospital Affiliated to Southern Medical University, Dongguan 523059, China
| | - Y Wang
- Department of Gastrointestinal Surgery, Dongguan People's Hospital Affiliated to Southern Medical University, Dongguan 523059, China
| | - H Shen
- Department of Radiology, Dongguan People's Hospital Affiliated to Southern Medical University, Dongguan 523059, China
| | - R Li
- Department of Gastrointestinal Surgery, Dongguan People's Hospital Affiliated to Southern Medical University, Dongguan 523059, China
| |
Collapse
|
87
|
Liu X, Wang W, Tang Y, Wang YK, Luo L, Song L. [Comparison of the long-term outcomes of focused ultrasound ablation surgery for uterine fibroids and myomectomy]. Zhonghua Fu Chan Ke Za Zhi 2022; 57:244-252. [PMID: 35484655 DOI: 10.3760/cma.j.cn112141-20210830-00476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To compare the long-term outcomes after focused ultrasound ablation surgery (FUAS) versus myomectomy for uterine fibroids. Methods: A retrospective study was conducted on women who were treated by FUAS or myomectomy for uterine fibroids at First Medical Center of Chinese PLA General Hospital from January 2007 to January 2015. Regular follow-up was conducted to evaluate the symptoms relief, symptoms recurrence, the need for re-interventions and complications of the two groups. Results: The effective rates were 95.7% (730/763) and 95.5% (1 151/1 205) in women who were treated by FUAS and myomectomy, no statistical difference was seen between the two groups (χ²=0.027, P=0.869). The cumulative rates of symptoms recurrence at 1 year, 3 years, 5 years, 8 years and 10 years of follow-up in FUAS group were 1.8%, 6.8%, 11.9%, 15.2% and 15.9%, respectively; and the cumulative re-intervention rates were 0.7%, 4.1%, 6.8%, 9.9% and 11.0%, respectively. The cumulative rates of symptoms recurrence at 1 year, 3 years, 5 years, 8 years and 10 years of follow-up in myomectomy group were 1.8%, 5.9%, 10.6%, 14.2% and 14.9%, respectively; and the cumulative re-intervention rates were 0.9%, 4.5%, 7.8%, 10.3% and 11.4%, respectively. No statistical differences were seen between the two groups (all P>0.05). There were no significant differences in the effective rate, symptoms recurrence rate and re-intervention rate between the two groups in patients with intermural fibroids; but the effective rate of FUAS (95.9%, 235/245) was higher than that of myomectomy (89.1%, 115/129), the symptoms recurrence rate (11.9%, 28/235) was lower than that of myomectomy (27.8%, 32/115), and the re-intervention rate (7.7%, 18/235) was lower than that of myomectomy (17.4%, 20/115) in patients with submucosal fibroids, there were significant different (all P<0.05). The effective rate of FUAS (91.0%, 132/145) was lower than that of myomectomy (97.0%, 322/332), the symptoms recurrence rate (32.6%, 43/132) was higher than that of myomectomy (9.9%, 32/322), and the re-intervention rate (22.0%, 29/132) was higher than that of myomectomy group (6.2%, 20/132) in patients with subserosal fibroids, there were significant different (all P<0.01). The incidences of total [1.8% (14/763) vs 21.9% (264/1 205)], minor and moderate adverse events were lower in FUAS group than myomectomy group (all P<0.001). Conclusion: Satisfaction with long-term outcomes after FUAS treatment or myomectomy for uterine fibroids is comparable.
Collapse
Affiliation(s)
- X Liu
- Department of Ultrasound, First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - W Wang
- Department of Ultrasound, First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - Y Tang
- Department of Ultrasound, First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - Y K Wang
- Department of Ultrasound, First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - L Luo
- Department of Ultrasound, First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - Lei Song
- Department of Obstetrics and Gynecology, First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| |
Collapse
|
88
|
Chen Z, Chen W, Liao G, Li X, Wang J, Tang Y, Li L. Flexible construct of N vacancies and hydrophobic sites on g-C 3N 4 by F doping and their contribution to PFOA degradation in photocatalytic ozonation. J Hazard Mater 2022; 428:128222. [PMID: 35032960 DOI: 10.1016/j.jhazmat.2022.128222] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 01/01/2022] [Accepted: 01/03/2022] [Indexed: 06/14/2023]
Abstract
N vacancies, hydrophobic sites and electron rich zone were simply regulated by doping F into g-C3N4 (CN) to accelerate photocatalytic ozonation of PFOA. Activity of F-CN was superior to that of CN, with 74.3% PFOA removal by F-CN/Vis/O3 but only 57.1% by CN/Vis/O3. Experimental results and theory simulations suggested that the photogenerated hole (hvb+) oxidation with the help of N vacancies was vital for PFOA degradation. N vacancies on both CN and F-CN would trap O atom of PFOA and seize electron from α -CF2 group, which made PFOA more easily to be oxidized. Doping of F narrowed band gap, lowered the valence band position and enhanced the oxidation potential of hvb+. The hydrophobic sites would accelerate the mass transfer of O3 and PFOA, enhance O3's single electron reduction with ecb- to generate hydroxyl radicals (•OH) and reduce the recombination of hvb+-ecb-. Under the joint function of hvb+, N vacancies and •OH, PFOA degradation in F-CN/Vis/O3 proceeded through the gradually shortening of perfluoroalky chain and loss of CF2 unit. The acute and chronic toxicity of generated short-chain perfluorocarboxylic acid toward fish, green algae daphnid were predicted by ECOSAR. And the toxicity change of solutions was examined by luminescent bacteria.
Collapse
Affiliation(s)
- Zesen Chen
- School of Environment, South China Normal University, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, Guangdong Provincial Engineering Technology Research Center for Drinking Water Safety, Guangdong Provincial Key Lab of Functional Materials for Environmental Protection, Guangzhou 510006, China
| | - Weirui Chen
- School of Environment, South China Normal University, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, Guangdong Provincial Engineering Technology Research Center for Drinking Water Safety, Guangdong Provincial Key Lab of Functional Materials for Environmental Protection, Guangzhou 510006, China.
| | - Gaozu Liao
- School of Environment, South China Normal University, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, Guangdong Provincial Engineering Technology Research Center for Drinking Water Safety, Guangdong Provincial Key Lab of Functional Materials for Environmental Protection, Guangzhou 510006, China
| | - Xukai Li
- School of Environment, South China Normal University, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, Guangdong Provincial Engineering Technology Research Center for Drinking Water Safety, Guangdong Provincial Key Lab of Functional Materials for Environmental Protection, Guangzhou 510006, China
| | - Jing Wang
- School of Environment, South China Normal University, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, Guangdong Provincial Engineering Technology Research Center for Drinking Water Safety, Guangdong Provincial Key Lab of Functional Materials for Environmental Protection, Guangzhou 510006, China
| | - Yiming Tang
- School of Environment, South China Normal University, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, Guangdong Provincial Engineering Technology Research Center for Drinking Water Safety, Guangdong Provincial Key Lab of Functional Materials for Environmental Protection, Guangzhou 510006, China
| | - Laisheng Li
- School of Environment, South China Normal University, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, Guangdong Provincial Engineering Technology Research Center for Drinking Water Safety, Guangdong Provincial Key Lab of Functional Materials for Environmental Protection, Guangzhou 510006, China.
| |
Collapse
|
89
|
Liao G, Xu P, Lu P, Qing X, Yu Z, Chang Y, Chen W, Tang Y, Wang J, Wang X, Li X, Li L, Xia D. Dramatic enhancement of mineralization capability for ozone/peroxymonosulfate process by single atom Co/CMK-3 catalyst. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.120582] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
|
90
|
Li L, Dong X, Tang Y, Lao Z, Li X, Lei J, Wei G. Deciphering the mechanisms of HPV E6 mutations in the destabilization of E6/E6AP/p53 complex. Biophys J 2022; 121:1704-1714. [PMID: 35364103 PMCID: PMC9117921 DOI: 10.1016/j.bpj.2022.03.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 07/13/2021] [Accepted: 03/28/2022] [Indexed: 11/29/2022] Open
Abstract
In epithelial tumors, oncoprotein E6 binds with the ubiquitin ligase E6AP to form E6/E6AP heterodimer; then this heterodimer recruits p53 to form E6/E6AP/p53 heterotrimer and induces p53 degradation. Recent experiments demonstrated that three E6 single-site mutants (F47R, R102A, and L50E) can inhibit the E6/E6AP/p53 heterotrimer formation and rescue p53 from the degradation pathway. However, the molecular mechanism underlying mutation-induced heterotrimer inhibition remains largely elusive. Herein, we performed extensive molecular dynamics simulations (totally ∼13 μs) on both heterodimer and heterotrimer to elucidate at an atomic level how each p53-degradation-defective HPV16 E6 mutant reduces the structural stabilities of the two complexes. Our simulations reveal that the three E6 mutations destabilize the structure of E6/E6AP/p53 complex through distinct mechanisms. Although F47RE6 mutation has no effect on the structure of E6/E6AP heterodimer, it results in an electrostatic repulsion between R47E6 and R290p53, which is unfavorable for E6-p53 binding. R102AE6 mutation destabilizes the structure of E6/E6AP heterodimer and significantly disrupts hydrophobic and cation-π interactions between F47E6 and E286p53/L298p53/R290p53. L50EE6 mutation impairs both E6 interdomain interactions (especially F47-K108 cation-π interaction) and E6-E6AP intermolecular interactions important for the stabilization of E6/E6AP heterodimer. This study identifies the intra- and intermolecular interactions crucial for the complex stability, which may provide mechanistic insights into the inhibition of complex formation by the three HPV16 E6 mutations.
Collapse
Affiliation(s)
- Le Li
- Department of Physics, State Key Laboratory of Surface Physics, and Key Laboratory for Computational Physical Sciences (Ministry of Education), Fudan University, Shanghai, China
| | - Xuewei Dong
- Department of Physics, State Key Laboratory of Surface Physics, and Key Laboratory for Computational Physical Sciences (Ministry of Education), Fudan University, Shanghai, China
| | - Yiming Tang
- Department of Physics, State Key Laboratory of Surface Physics, and Key Laboratory for Computational Physical Sciences (Ministry of Education), Fudan University, Shanghai, China
| | - Zenghui Lao
- Department of Physics, State Key Laboratory of Surface Physics, and Key Laboratory for Computational Physical Sciences (Ministry of Education), Fudan University, Shanghai, China
| | - Xuhua Li
- MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, School of Physics, Xi'an Jiaotong University, Xi'an, China
| | - Jiangtao Lei
- Institute of Space Science and Technology, Nanchang University, Xuefu Avenue 999, Nanchang City, China
| | - Guanghong Wei
- Department of Physics, State Key Laboratory of Surface Physics, and Key Laboratory for Computational Physical Sciences (Ministry of Education), Fudan University, Shanghai, China.
| |
Collapse
|
91
|
Huang HY, Wu DW, Zhu Q, Yu Y, Wang HX, Wang J, Ga M, Meng XY, Du JT, Miao SM, Zhao ZX, Wang X, Shang P, Guo MJ, Liu LH, Tang Y, Li N, Cao C, Xu BH, Sun Y, He J. [Progress on clinical trials of common gastrointestinal cancer drugs in China from 2012 to 2021]. Zhonghua Zhong Liu Za Zhi 2022; 44:276-281. [PMID: 35316878 DOI: 10.3760/cma.j.cn112152-20211207-00907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: Systematically summarize the research progress of clinical trials of gastric cancer oncology drugs and the overview of marketed drugs in China from 2012 to 2021, providing data and decision-making evidence for relevant departments. Methods: Based on the registration database of the drug clinical trial registration and information disclosure platform of Food and Drug Administration of China and the data query system of domestic and imported drugs, the information on gastric cancer drug clinical trials, investigational drugs and marketed drugs from January 1, 2012 to December 31, 2021 was analyzed, and the differences between Chinese and foreign enterprises in terms of trial scope, trial phase, treatment lines and drug type, effect and mechanism studies were compared. Results: A total of 114 drug clinical trials related to gastric tumor were registered in China from 2012 to 2021, accounting for 3.7% (114/3 041) of all anticancer drug clinical trials in the same period, the registration number showed a significant growth rate after 2016 and reached its peak with 32 trials in 2020. Among them, 85 (74.6%, 85/114) trials were initiated by Chinese pharmaceutical enterprise. Compared with foreign pharmaceutical enterprise, Chinese pharmaceutical enterprise had higher rates of phase I trials (35.3% vs 6.9%, P=0.001), but the rate of international multicenter trials (11.9% vs 67.9%, P<0.001) was relatively low. There were 76 different drugs involved in relevant clinical trials, of which 65 (85.5%) were targeted drugs. For targeted drugs, HER2 is the most common one (14 types), followed by PD-1 and multi-target VEGER. In the past ten years, 3 of 4 marketed drugs for gastric cancer treatment were domestic and included in the national medical insurance directory. Conclusions: From 2012 to 2021, China has made some progress in drug research and development for gastric carcinoma. However, compared with the serious disease burden, it is still insufficient. Targeted strengthening of research and development of investment in many aspects of gastric cancer drugs, such as new target discovery, matured target excavating, combination drug development and early line therapy promotion, is the key work in the future, especially for domestic companies.
Collapse
Affiliation(s)
- H Y Huang
- Department of Clinical Trials Center, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - D W Wu
- Department of Clinical Trials Center, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Q Zhu
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Y Yu
- Department of Clinical Trials Center, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - H X Wang
- National Center for Drug Evaluation, National Medical Products Administration, Beijing 100022, China
| | - J Wang
- National Center for Drug Evaluation, National Medical Products Administration, Beijing 100022, China
| | - M Ga
- Department of Clinical Trials Center, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - X Y Meng
- The University of Melbourne, Faculty of Medicine, Dentistry and Health Sciences, Melbourne 3010, Australia
| | - J T Du
- Department of Clinical Trials Center, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - S M Miao
- Department of Clinical Trials Center, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Z X Zhao
- Department of Clinical Trial Center, China-Japan Friendship Hospital, Beijing 100029, China
| | - X Wang
- Clinical Trials Research Center, Beijing Hoppital, National Center of Getrontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - P Shang
- National Clinical Research Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - M J Guo
- Department of Health Insurance Information Research, Institute of Medical Information, Chinese Academy of Medical Sciences, Beijing 100020, China
| | - L H Liu
- Department of Clinical Trial Center, China-Japan Friendship Hospital, Beijing 100029, China
| | - Y Tang
- Department of Clinical Trials Center, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - N Li
- Department of Clinical Trials Center, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - C Cao
- Zhongguancun Jiutai Good Clinical Practice Union, Beijing 100027, China
| | - B H Xu
- Department of Clinical Trials Center, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Y Sun
- Department of Clinical Trials Center, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - J He
- Department of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| |
Collapse
|
92
|
Lei JQ, Liu WY, Tang Y, Tang Y, Li N, Ren H, Yihebali C, Sun YK, Zhang W, Bi XY, Zhao JJ, Fang H, Lu NN, Zhou AP, Wang SL, Song YW, Liu YP, Chen B, Qi SN, Cai JQ, Li YX, Jin J. [Stereotactic body radiation therapy for patients with lung and liver oligometastases from colorectal cancer: a phase Ⅱ trial]. Zhonghua Zhong Liu Za Zhi 2022; 44:282-290. [PMID: 35316879 DOI: 10.3760/cma.j.cn112152-20200413-00339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To explore the safety and effectiveness of stereotactic body radiation therapy (SBRT) for oligometastases from colorectal cancer (CRC). Methods: This is a prospective, single-arm phase Ⅱ trial. Patients who had histologically proven CRC, 1 to 5 detectable liver or lung metastatic lesions with maximum diameter of any metastases ≤5 cm were eligible. SBRT was delivered to all lesions. The primary endpoint was 3-year local control (LC). The secondary endpoints were treatment-related acute toxicities of grade 3 and above, 1-year and 3-year overall survival (OS) and progression free survival (PFS). Survival analysis was performed using the Kaplan-Meier method and Log rank test. Results: Petients from 2016 to 2019 who were treated in Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College. Forty-eight patients with 60 lesions were enrolled, including 37 liver lesions and 23 lung lesions. Forty-six patients had 1 or 2 lesions, with median diameter of 1.3 cm, the median biologically effective dose (BED(10)) was 100.0 Gy. The median follow-up was 19.5 months for all lesions. Twenty-five lesions developed local failure, the median local progression free survival was 15 months. The 1-year LC, OS and PFS was 70.2% (95% CI, 63.7%~76.7%), 89.0% (95% CI, 84.3%~93.7%) and 40.4% (95%CI, 33.0%~47.8%). The univariate analysis revealed that planning target volume (PTV) and total dose were independent prognostic factors of LC (P<0.05). For liver and lung lesions, the 1-year LC, OS and PFS was 58.7% and 89.4% (P=0.015), 89.3% and 86.5% (P=0.732), 30.5% and 65.6% (P=0.024), respectively. No patients developed acute toxicity of grade 3 and above. Conclusion: SBRT is safe and effective treatment method for oligometastases from CRC under precise respiratory motion management and robust quality assurance.
Collapse
Affiliation(s)
- J Q Lei
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - W Y Liu
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Y Tang
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Y Tang
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - N Li
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - H Ren
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College Shenzhen Hospital, Shenzhen 518116, China
| | - Chi Yihebali
- Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Y K Sun
- Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - W Zhang
- Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - X Y Bi
- Department of Abdominal Surgical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - J J Zhao
- Department of Abdominal Surgical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - H Fang
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - N N Lu
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - A P Zhou
- Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - S L Wang
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Y W Song
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Y P Liu
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - B Chen
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - S N Qi
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - J Q Cai
- Department of Abdominal Surgical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Y X Li
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - J Jin
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| |
Collapse
|
93
|
Zhang Y, Xu W, Tang Y, Huang F. Protective effect of lithium chloride on pulmonary injury caused by Actinobacillus pleuropneumoniae via inhibition of GSK-3β-NF-κB-dependent pathway. Pol J Vet Sci 2022; 25:35-44. [PMID: 35575861 DOI: 10.24425/pjvs.2022.140838] [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] [Indexed: 06/15/2023]
Abstract
Porcine contagious pleuropneumonia (PCP) is a very serious respiratory disease which is difficult to prevent and treat. In this study, the therapeutic effects of lithium chloride (LiCl) on PCP were examined using a mouse model. A mouse model of PCP was established by intranasal infections with Actinobacillus pleuropneumoniae (App). Histopathological analysis was performed by routine paraffin sections and an H-E staining method. The inflammatory factors, TLR4 and CCL2 were analyzed by qPCR. The expression levels of p-p65 and pGSK-3ß were detected using the Western Blot Method. The death rates, clinical symptoms, lung injuries, and levels of TLR-4, IL-1ß, IL-6, TNF-α, and CCL2 were observed to decrease in the App-infected mice treated with LiCl. It was determined that the LiCl treatments had significantly reduced the mortality of the App-infected cells, as well as the expressions of p-p65 and pGSK-3ß. The results of this study indicated that LiCl could improve the pulmonary injuries of mice caused by App via the inhibition of the GSK-3β-NF-κB-dependent pathways, and may potentially become an effective drug for improving pulmonary injuries caused by PCP.
Collapse
Affiliation(s)
- Y Zhang
- College of Veterinary Medicine, Hunan Agricultural University, Furong District, Nongda Road, No.1, Changsha 410128, China
| | - W Xu
- College of Veterinary Medicine, Hunan Agricultural University, Furong District, Nongda Road, No.1, Changsha 410128, China
| | - Y Tang
- College of Veterinary Medicine, Hunan Agricultural University, Furong District, Nongda Road, No.1, Changsha 410128, China
| | - F Huang
- College of Veterinary Medicine, Hunan Agricultural University, Furong District, Nongda Road, No.1, Changsha 410128, China
- Hunan Engineering Technology Research Center for Veterinary Drugs, Hunan Agricultural University, Furong District, Nongda Road, No.1, Changsha 410128, China
| |
Collapse
|
94
|
Tang Y, Liu F, Mao X, Li P, Mumin MA, Li J, Hou Y, Song H, Lin H, Tan L, Gui C, Zhang M, Fu L, Chen W, Huang Y, Luo J. The impact of tumor size on the survival of patients with small renal masses: A population-based study. Cancer Med 2022; 11:2377-2385. [PMID: 35229988 PMCID: PMC9189465 DOI: 10.1002/cam4.4595] [Citation(s) in RCA: 5] [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: 11/19/2021] [Revised: 12/09/2021] [Accepted: 12/18/2021] [Indexed: 12/11/2022] Open
Abstract
Background Active surveillance (AS) with delayed intervention has gained acceptance as a management strategy for small renal masses (SRMs). However, during AS, there is a risk of tumor growth. Thus, we aim to investigate whether tumor growth in patients with SRMs leads to tumor progress. Methods In this study, we enrolled 16,070 patients from the Surveillance, Epidemiology, and End Results database with T1a renal cell carcinoma (RCC) between 2004 and 2017. The 16,070 patients were divided into three groups: 10,526 in the partial nephrectomy (PN) group, 2768 in the local ablation (LA) group, and 2776 in the AS group. Associations of tumor size with all‐cause and cancer‐specific mortality were evaluated using Kaplan–Meier analyses and Cox regression models. Results Four tumor size categories were delineated (≤1, >1–2, >2–3, and > 3–4 cm in diameter), and 10‐year all‐cause and cancer‐specific mortality both significantly increased with increasing tumor size in the PN, LA, and AS groups (all p < 0.05). Tumors were substaged based on diameter: T1aA (≤2 cm) and T1aB (>2–4 cm). All‐cause and cancer‐specific mortality were significantly higher in T1aB tumors than T1aA tumors in each group (hazard ratio = 1.395 and 1.538, respectively; all p < 0.05). Conclusions Tumor growth relates to worse prognosis of T1a RCC, and 2 cm serves as a size threshold that is prognostically relevant for patients with T1a RCC. Because of the lack of accurate predictors of tumor growth rate, AS for patients with SRMs incurs a risk of tumor progression.
Collapse
Affiliation(s)
- Yiming Tang
- Department of Urology, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, China.,Department of Urology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Fei Liu
- Department of Urology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xiaopeng Mao
- Department of Urology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Pengju Li
- Department of Urology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Mukhtar A Mumin
- Department of Urology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Jiaying Li
- Department of Urology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Yi Hou
- Department of Urology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Hongde Song
- Department of Urology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Haishan Lin
- Department of Urology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Lei Tan
- Department of Urology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Chengpeng Gui
- Department of Urology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Mingxiao Zhang
- Department of Urology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Liangmin Fu
- Department of Urology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Wei Chen
- Department of Urology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Yong Huang
- Department of Urology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.,Department of Emergency, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Junhang Luo
- Department of Urology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| |
Collapse
|
95
|
Liu H, Wei Z, Yang J, Wang Y, Hu J, Tang Y, Diao Y. Development of an indirect enzyme-linked immunosorbent assay for the detection of novel chicken orthoreovirus. Pol J Vet Sci 2022; 25:109-118. [PMID: 35575862 DOI: 10.24425/pjvs.2022.140847] [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] [Indexed: 06/15/2023]
Abstract
A novel avian orthoreovirus (N-ARV) variant characterized with obvious arthritis and synovial inflammation, was isolated from Shandong, China in May 2016. It caused chicken poor growth and enormous economic losses to the poultry industry of China. However, there are few effective methods for detecting the antibody levels of N-ARV. In this study, a viral structural protein σC was expressed using the prokaryotic expression vector pET32a (+). The target protein was obtained by inducing for 6 hours at an IPTG concentration of 0.6mM. The optimal dilution of the coating antigen and serum antibody were determined to be 1000 fold and 10 fold respectively. A specificity test showed that there was no positive reactivity between N-ARV and other pathogens, and when the positive serum was diluted 100 times detection results were still checkable. The repeatability of this method was determined by the inter assay and intra assay tests with variability ranging from 4.85% to 7.93%. In conclusion, this indirect enzyme linked immunosorbent assay (ELISA) will be useful for large-scale serological surveys and monitoring antibody levels in N-ARV infection.
Collapse
Affiliation(s)
- H Liu
- College of Veterinary Medicine, Shandong Agricultural University, No.61 Daizong Street, Tai'an 271018, China
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, No.61 Daizong Street, Tai'an 271018, China
- Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, No.61 Daizong Street, Tai'an 271018, China
| | - Z Wei
- College of Veterinary Medicine, Shandong Agricultural University, No.61 Daizong Street, Tai'an 271018, China
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, No.61 Daizong Street, Tai'an 271018, China
- Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, No.61 Daizong Street, Tai'an 271018, China
| | - J Yang
- College of Veterinary Medicine, Shandong Agricultural University, No.61 Daizong Street, Tai'an 271018, China
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, No.61 Daizong Street, Tai'an 271018, China
- Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, No.61 Daizong Street, Tai'an 271018, China
| | - Y Wang
- College of Veterinary Medicine, Shandong Agricultural University, No.61 Daizong Street, Tai'an 271018, China
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, No.61 Daizong Street, Tai'an 271018, China
- Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, No.61 Daizong Street, Tai'an 271018, China
| | - J Hu
- College of Veterinary Medicine, Shandong Agricultural University, No.61 Daizong Street, Tai'an 271018, China
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, No.61 Daizong Street, Tai'an 271018, China
- Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, No.61 Daizong Street, Tai'an 271018, China
| | - Y Tang
- College of Veterinary Medicine, Shandong Agricultural University, No.61 Daizong Street, Tai'an 271018, China
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, No.61 Daizong Street, Tai'an 271018, China
- Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, No.61 Daizong Street, Tai'an 271018, China
| | - Y Diao
- College of Veterinary Medicine, Shandong Agricultural University, No.61 Daizong Street, Tai'an 271018, China
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, No.61 Daizong Street, Tai'an 271018, China
- Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, No.61 Daizong Street, Tai'an 271018, China
| |
Collapse
|
96
|
Yu Y, Dong X, Tang Y, Li L, Wei G. Mechanistic insight into the destabilization of p53TD tetramer by cancer-related R337H mutation: a molecular dynamics study. Phys Chem Chem Phys 2022; 24:5199-5210. [PMID: 35166747 DOI: 10.1039/d1cp05670k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The p53 protein is a tumor suppressor crucial for cell cycle and genome integrity. In a very large proportion of human cancers, p53 is frequently inactivated by mutations located in its DNA-binding domain (DBD). Some experimental studies reported that the inherited R337H mutation located in the p53 tetramerization domain (p53TD) can also result in destabilization of the p53 protein, and consequently lead to an organism prone to cancer setup. However, the underlying R337H mutation-induced structural destabilization mechanism is not well understood. Herein, we investigate the structural stability and dynamic property of the wild type p53TD tetramer and its cancer-related R337H mutant by performing multiple microsecond molecular dynamics simulations. It is found that R337H mutation destroys the R337-D352 hydrogen bonds, weakens the F341-F341 π-π stacking interaction and the hydrophobic interaction between aliphatic hydrocarbons of R337 and M340, leading to more solvent exposure of all the hydrophobic cores, and thus disrupting the structural integrity of the tetramer. Importantly, our simulations show for the first time that R337H mutation results in unfolding of the α-helix starting from the N-terminal region (residues 335RER(H)FEM340). Consistently, community network analyses reveal that R337H mutation reduces dynamical correlation and global connectivity of p53TD tetramer, which destabilizes the structure of the p53TD tetramer. This study provides the atomistic mechanism of R337H mutation-induced destabilization of p53TD tetramer, which might be helpful for in-depth understanding of the p53 loss-of-function mechanism.
Collapse
Affiliation(s)
- Yawei Yu
- Department of physics, State Key Laboratory of Surface Physics, and Key Laboratory for Computational Physical Sciences (Ministry of Education), Fudan University, Shanghai 200438, People's Republic of China.
| | - Xuewei Dong
- Department of physics, State Key Laboratory of Surface Physics, and Key Laboratory for Computational Physical Sciences (Ministry of Education), Fudan University, Shanghai 200438, People's Republic of China.
| | - Yiming Tang
- Department of physics, State Key Laboratory of Surface Physics, and Key Laboratory for Computational Physical Sciences (Ministry of Education), Fudan University, Shanghai 200438, People's Republic of China.
| | - Le Li
- Department of physics, State Key Laboratory of Surface Physics, and Key Laboratory for Computational Physical Sciences (Ministry of Education), Fudan University, Shanghai 200438, People's Republic of China.
| | - Guanghong Wei
- Department of physics, State Key Laboratory of Surface Physics, and Key Laboratory for Computational Physical Sciences (Ministry of Education), Fudan University, Shanghai 200438, People's Republic of China.
| |
Collapse
|
97
|
Hu M, Chen K, Wang N, Zhao Y, Wei C, Meng L, Tang Y, Teng Y, Wang H. [Changes in the structure of intestinal mucosal flora in colorectal cancer patients]. Nan Fang Yi Ke Da Xue Xue Bao 2022; 42:263-271. [PMID: 35365452 DOI: 10.12122/j.issn.1673-4254.2022.02.14] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
OBJECTIVE To investigate the changes in bacterial flora in fecal samples, at the tumor loci and in adjacent mucosa in patients with colorectal cancer (CRC). METHODS We collected fecal samples from 13 patients with CRC and 20 healthy individuals and tumor and adjacent mucosa samples from 6 CRC patients. The differences in bacterial composition between the fecal and mucosa samples were analyzed with 16S rDNA sequencing and bioinformatics methods. We also detected the total number of bacteria in the feces using flow cytometry, isolated and identified the microorganisms in the fecal and mucosa samples using common bacterial culture media. We further tested the effects of 7 isolated bacterial strains on apoptosis of 3 CRC cell lines using lactate dehydrogenase detection kit. RESULTS The bacterial α-diversity in the feces of healthy individuals and in adjacent mucosa of CRC patients was significantly higher than that in the feces and tumor mucosa in CRC patients (P < 0.05). Lactobacillaceae is a specific bacteria in the feces, while Escherichia, Enterococcus, and Fusobacterium are specific bacteria in tumor mucosa of CRC patients as compared with healthy individuals. Cell experiment with3 CRC cell lines showed that Bacteroides fragilis isolated from the tumor mucosa of CRC patients produced significant inhibitory effects on cell proliferation (P < 0.0001), while the isolated strain Fusobacterium nucleatum obviously promoted the proliferation of the cell lines (P < 0.001). CONCLUSION The bacterial flora in the feces, tumor mucosa and adjacent mucosa of CRC patients is significantly different from that in the feces of healthy individuals, and the fecal flora of CRC patients can not represent the specific flora of the tumor mucosa. Inhibition of F. nucleatum colonization in the tumor mucosa and promoting B. fragilis colonization may prove beneficial for CRC treatment.
Collapse
Affiliation(s)
- M Hu
- School of Bioengineering, Tianjin University of Science and Technology, Tianjin 300457, China
| | - K Chen
- School of Bioengineering, Tianjin University of Science and Technology, Tianjin 300457, China
| | - N Wang
- School of Bioengineering, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Y Zhao
- School of Bioengineering, Tianjin University of Science and Technology, Tianjin 300457, China
| | - C Wei
- Tianjin People's Hospital, Tianjin 300000, China
| | - L Meng
- Tianjin People's Hospital, Tianjin 300000, China
| | - Y Tang
- Second Affiliated Hospital of Tianjin Medical University, Tianjin 300070, China
| | - Y Teng
- School of Bioengineering, Tianjin University of Science and Technology, Tianjin 300457, China
| | - H Wang
- School of Bioengineering, Tianjin University of Science and Technology, Tianjin 300457, China
| |
Collapse
|
98
|
Zhang J, Xu K, Hu Y, Yang L, Leng X, Jin H, Tang Y, Liu X, Ye C, Guo Y, Wang L, Zhang J, Feng Y, Mou C, Tang L, Xiang J, Du C. Diagnostic performance of deep learning and computational fluid dynamics-based instantaneous wave-free ratio derived from computed tomography angiography. BMC Cardiovasc Disord 2022; 22:33. [PMID: 35120463 PMCID: PMC8817609 DOI: 10.1186/s12872-022-02469-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Accepted: 01/13/2022] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND AND OBJECTIVES Both fractional flow reserve (FFR) and instantaneous wave-free ratio (iFR) are widely used to evaluate ischemia-causing coronary lesions. A new method of CT-iFR, namely AccuiFRct, for calculating iFR based on deep learning and computational fluid dynamics (CFD) using coronary computed tomography angiography (CCTA) has been proposed. In this study, the diagnostic performance of AccuiFRct was thoroughly assessed using iFR as the reference standard. METHODS Data of a total of 36 consecutive patients with 36 vessels from a single-center who underwent CCTA, invasive FFR, and iFR were retrospectively analyzed. The CT-derived iFR values were computed using a novel deep learning and CFD-based model. RESULTS Mean values of FFR and iFR were 0.80 ± 0.10 and 0.91 ± 0.06, respectively. AccuiFRct was well correlated with FFR and iFR (correlation coefficients, 0.67 and 0.68, respectively). The diagnostic accuracy, sensitivity, specificity, positive predictive value, and negative predictive value of AccuiFRct ≤ 0.89 for predicting FFR ≤ 0.80 were 78%, 73%, 81%, 73%, and 81%, respectively. Those of AccuiFRct ≤ 0.89 for predicting iFR ≤ 0.89 were 81%, 73%, 86%, 79%, and 82%, respectively. AccuiFRct showed a similar discriminant function when FFR or iFR were used as reference standards. CONCLUSION AccuiFRct could be a promising noninvasive tool for detection of ischemia-causing coronary stenosis, as well as facilitating in making reliable clinical decisions.
Collapse
Affiliation(s)
- Jingyuan Zhang
- Department of Medicine, The Second College of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, China
| | - Kun Xu
- Department of Medicine, The Second College of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, China
| | - Yumeng Hu
- ArteryFlow Technology Co., Ltd., 459 Qianmo Road, Hangzhou, 310051, China
| | - Lin Yang
- Department of Geriatrics, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Xiaochang Leng
- ArteryFlow Technology Co., Ltd., 459 Qianmo Road, Hangzhou, 310051, China
| | - Hongfeng Jin
- Department of Cardiology, Zhejiang Hospital, Hangzhou, 310013, China
| | - Yiming Tang
- Department of Cardiology, Zhejiang Hospital, Hangzhou, 310013, China
| | - Xiaowei Liu
- Department of Cardiology, Zhejiang Hospital, Hangzhou, 310013, China
| | - Chen Ye
- Department of Cardiology, Zhejiang Hospital, Hangzhou, 310013, China
| | - Yitao Guo
- Department of Cardiology, Zhejiang Hospital, Hangzhou, 310013, China
| | - Lei Wang
- Department of Cardiology, Zhejiang Hospital, Hangzhou, 310013, China
| | - Jianjun Zhang
- Department of Radiology, Zhejiang Hospital, Hangzhou, China
| | - Yue Feng
- Department of Radiology, Zhejiang Hospital, Hangzhou, China
| | - Caiyun Mou
- Department of Radiology, Zhejiang Hospital, Hangzhou, China
| | - Lijiang Tang
- Department of Medicine, The Second College of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, China. .,Department of Cardiology, Zhejiang Hospital, Hangzhou, 310013, China.
| | - Jianping Xiang
- ArteryFlow Technology Co., Ltd., 459 Qianmo Road, Hangzhou, 310051, China.
| | - Changqing Du
- Department of Medicine, The Second College of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, China. .,Department of Cardiology, Zhejiang Hospital, Hangzhou, 310013, China.
| |
Collapse
|
99
|
Qiu D, Li J, Zhang J, Minfeng C, Gao X, Tang Y, Zhang Y, Yi X, Yin H, Gan Y, Wang G, Zu X, Hu S, Yi C. Dual-Tracer PET/CT-Targeted, mpMRI-Targeted, systematic biopsy, and combined biopsy for the diagnosis of prostate cancer. Eur Urol 2022. [DOI: 10.1016/s0302-2838(22)00824-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
100
|
Tang Y, Chen R, Feng Y, Li G, Wang L, Li Y, Hong D. POS-243 BRG1 CONTRIBUTIONS TO VASCULAR CALCIFICATION IN CHRONIC KIDNEY DISEASE INVOLVING AUTOPHAGY OF VASCULAR SMOOTH MUSCLE CELLS. Kidney Int Rep 2022. [DOI: 10.1016/j.ekir.2022.01.262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
|