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Feng Q, Lin Q, Yao F, Liao Y, Zhang H, Sun Y, Liu W, Zhang R, Rao W, Zhang G, Xu Y. Discovering novel biomarkers for diagnosis and treatment monitoring of active pulmonary tuberculosis by ion metabolism analysis. Microbiol Res 2024; 283:127670. [PMID: 38479231 DOI: 10.1016/j.micres.2024.127670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Revised: 02/12/2024] [Accepted: 02/27/2024] [Indexed: 04/17/2024]
Abstract
Tuberculosis (TB) is a highly lethal infectious disease that poses a global threat. Timely and accurate biomarker for TB diagnosis and treatment monitoring remains a pressing need. Ions, the crucial trace element for humans, may be potential targets for TB diagnosis and the forecasting of TB development. To explore the potential of ions as biomarkers, we measured and compared the levels of various ions in whole blood and plasma samples from healthy control (HC), pulmonary TB patients (TB), cured pulmonary TB patients (RxTB), and other non-TB pneumonia patients (PN) by using ultra-high performance liquid chromatography-tandem mass spectrometry. Our study demonstrated that Cu (AUC = 0.670), Pb (AUC = 0.660), and Zn (AUC = 0.701) in whole blood exhibited promising diagnostic performance for TB. Then we used a neural network (NNET) for TB prediction, the AUC values used to differentiate definite TB from HC or PN in plasma were 0.867 and 0.864, respectively. The AUC values used to differentiate definite TB from HC or PN in whole blood were 0.818 and 0.660, respectively. Our correlation analysis showed that Zn (r= 0.356, p=0.001) and Cu (r= 0.361, p=0.0004) in plasma are most closely related to disease severity. Additionally, six ions (Cu, Sb, V, Mn, Fe, Sr) in plasma and whole blood were altered following anti-TB therapy. These results showed that ions could be diagnostic biomarkers for TB. Furthermore, the level of particular ions can forecast the degree of lung damage and the success of the TB treatment. In conclusion, this study highlights the possibility of using ions from blood samples to enable rapid tuberculosis diagnosis.
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Affiliation(s)
- Qishun Feng
- National Clinical Research Center for Infectious Diseases, Shenzhen Third People's Hospital, Southern University of Science and Technology, Shenzhen 518112, China
| | - Qiao Lin
- The Baoan People's Hospital of Shenzhen, The Second Affiliated Hospital of Shenzhen University, Shenzhen 518101, China
| | - Fusheng Yao
- National Clinical Research Center for Infectious Diseases, Shenzhen Third People's Hospital, Southern University of Science and Technology, Shenzhen 518112, China
| | - Yunli Liao
- Department of Mass Spectrometry, BGI-Shenzhen, Shenzhen 518083, China
| | - Huihua Zhang
- Department of Pathogen Biology, School of Medicine, Shenzhen University, Shenzhen 518037, China
| | - Yunmei Sun
- National Clinical Research Center for Infectious Diseases, Shenzhen Third People's Hospital, Southern University of Science and Technology, Shenzhen 518112, China
| | - Wenfeng Liu
- The Baoan People's Hospital of Shenzhen, The Second Affiliated Hospital of Shenzhen University, Shenzhen 518101, China
| | - Ruiqi Zhang
- National Clinical Research Center for Infectious Diseases, Shenzhen Third People's Hospital, Southern University of Science and Technology, Shenzhen 518112, China
| | - Weiqiao Rao
- Department of Mass Spectrometry, BGI-Shenzhen, Shenzhen 518083, China.
| | - Guoliang Zhang
- National Clinical Research Center for Infectious Diseases, Shenzhen Third People's Hospital, Southern University of Science and Technology, Shenzhen 518112, China.
| | - Yuzhong Xu
- The Baoan People's Hospital of Shenzhen, The Second Affiliated Hospital of Shenzhen University, Shenzhen 518101, China.
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Yu W, Guan WM, Hayashi D, Lin Q, Du MM, Xia WB, Wang YXJ, Guermazi A. Vertebral fracture severity assessment on anteroposterior radiographs with a new semi-quantitative technique. Osteoporos Int 2024; 35:831-839. [PMID: 38296865 DOI: 10.1007/s00198-024-07024-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Accepted: 01/12/2024] [Indexed: 02/02/2024]
Abstract
We developed a new tool to assess the severity of osteoporotic vertebral fracture using radiographs of the spine. Our technique can be used in patient care by helping to stratify patients with osteoporotic vertebral fractures into appropriate treatment pathways. It can also be used for research purposes. PURPOSE The aim of our study was to propose a semi-quantitative (SQ) grading scheme for osteoporotic vertebral fracture (OVF) on anteroposterior (AP) radiographs. METHODS On AP radiographs, the vertebrae are divided into right and left halves, which are graded (A) vertical rectangle, (B) square, (C) traverse rectangle, and (D) trapezoid; whole vertebrae are graded (E) transverse band or (F) bow-tie. Type A and B were compared with normal and Genant SQ grade 1 OVF, Type C and D with grade 2 OVF, and Type E and F with grade 3 OVF. Spine AP radiographs and lateral radiographs of 50 females were assessed by AP radiographs SQ grading. After training, an experienced board-certified radiologist and a radiology trainee assessed the 50 AP radiographs. RESULTS The height-to-width ratio of the half vertebrae varied 1.32-1.48. On lateral radiographs, 84 vertebrae of the 50 patients had OVFs (38 grade 1, 24 grade 2, and 22 grade 3). On AP radiographs, the radiologist correctly assigned 84.2%, 91.7%, and 77.2% and the trainee correctly assigned 68.4%, 79.2%, and 81.8% of grade 1, 2, and 3 OVFs, respectively. Compared with lateral radiographs, the radiologist had a weighted Kappa of 0.944 including normal vertebrae and 0.883 not including normal vertebrae, while the corresponding Kappa values for the trainee were 0.891 and 0.830, respectively. CONCLUSION We propose a new semi-quantitative grading system for vertebral fracture severity assessment on AP spine radiographs.
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Affiliation(s)
- W Yu
- Department of Radiology, Chinese Academy Medical Sciences and Peking Union Medical College, Peking Union Medical College Hospital, Beijing, China.
| | - W-M Guan
- Department of Radiology, Chinese Academy Medical Sciences and Peking Union Medical College, Peking Union Medical College Hospital, Beijing, China
- Department of Radiology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - D Hayashi
- Department of Radiology, Tufts Medical Center, Tufts University School of Medicine, Boston, MA, USA
| | - Q Lin
- Department of Radiology, Chinese Academy Medical Sciences and Peking Union Medical College, Peking Union Medical College Hospital, Beijing, China
- Department of Radiology, Beijing Arion Cancer Center, Beijing, China
| | - M-M Du
- Department of Radiology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Zhejiang Province, Wenzhou, China
| | - W-B Xia
- Department of Endocrinology, Chinese Academy Medical Sciences and Peking Union Medical College, Peking Union Medical College Hospital, Beijing, China
| | - Y-X J Wang
- Department of Imaging and Interventional Radiology, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, SAR, China
| | - A Guermazi
- Department of Radiology, VA Boston Healthcare System, Boston University School of Medicine, Boston, MA, USA
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Jakkampudi T, Lin Q, Mitra S, Vijai A, Qin W, Kang A, Chen J, Ryan E, Wang R, Gong Y, Heinrich F, Song J, Di YPP, Tristram-Nagle S. Correction to "Lung SPLUNC1 Peptide Derivatives in the Lipid Membrane Headgroup Kill Gram-Negative Planktonic and Biofilm Bacteria". Biomacromolecules 2024. [PMID: 38640499 DOI: 10.1021/acs.biomac.4c00501] [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: 04/21/2024]
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Lin Q, Li C, Wang Y, Zhu Y, Gu Y. Discovery of Near-Infrared Heptamethine Cyanine Probes for Imaging-Guided Surgery in Solid Tumors. J Med Chem 2024; 67:5800-5812. [PMID: 38560986 DOI: 10.1021/acs.jmedchem.4c00010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
Near-infrared (NIR) fluorescence imaging has attracted much attention in image-guided interventions with unique advantages. However, the clinical translation rate of fluorescence probes is extremely low, primarily due to weak lesion signal contrast and poor specificity. To address this dilemma, a series of small-molecule near-infrared fluorescence probes have been designed for tumor imaging. Among them, YQ-04-03 showed notable optical stability and remarkable sensitivity toward tumor targeting. Moreover, within a specific concentration and time range against oxidizing reducing agents and laser, it demonstrated better stability than ICG. The retention time of YQ-04-03 in tumors was significantly longer compared to other nonspecific uptake sites in the subjects, and its tumor-to-normal tissue ratio (TNR) outperformed ICG. Successful resection of in situ hepatocarcinoma and peritoneal carcinoma was achieved using probe imaging guidance, with the smallest visual lesion resected measuring approximately 1 mm3. Ultimately, this probe holds great potential for advancing tumor tracer.
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Affiliation(s)
- Qiao Lin
- State Key Laboratory of Natural Medicines, Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 211198, China
| | - Changsheng Li
- State Key Laboratory of Natural Medicines, Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 211198, China
- Nanjing Nuoyuan Medical Devices Co., Ltd, NO.18 Ziyun Avenue, Qinhuai District, Nanjing 210000, China
| | - Yuhua Wang
- State Key Laboratory of Natural Medicines, Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 211198, China
| | - Yanqing Zhu
- State Key Laboratory of Natural Medicines, Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 211198, China
| | - Yueqing Gu
- State Key Laboratory of Natural Medicines, Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 211198, China
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Liu S, Huang J, Zhou J, Chen S, Zheng W, Liu C, Lin Q, Zhang P, Wu D, He S, Ye J, Liu S, Zhou K, Li B, Qu L, Yang J. NAP-seq reveals multiple classes of structured noncoding RNAs with regulatory functions. Nat Commun 2024; 15:2425. [PMID: 38499544 PMCID: PMC10948791 DOI: 10.1038/s41467-024-46596-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Accepted: 03/04/2024] [Indexed: 03/20/2024] Open
Abstract
Up to 80% of the human genome produces "dark matter" RNAs, most of which are noncapped RNAs (napRNAs) that frequently act as noncoding RNAs (ncRNAs) to modulate gene expression. Here, by developing a method, NAP-seq, to globally profile the full-length sequences of napRNAs with various terminal modifications at single-nucleotide resolution, we reveal diverse classes of structured ncRNAs. We discover stably expressed linear intron RNAs (sliRNAs), a class of snoRNA-intron RNAs (snotrons), a class of RNAs embedded in miRNA spacers (misRNAs) and thousands of previously uncharacterized structured napRNAs in humans and mice. These napRNAs undergo dynamic changes in response to various stimuli and differentiation stages. Importantly, we show that a structured napRNA regulates myoblast differentiation and a napRNA DINAP interacts with dyskerin pseudouridine synthase 1 (DKC1) to promote cell proliferation by maintaining DKC1 protein stability. Our approach establishes a paradigm for discovering various classes of ncRNAs with regulatory functions.
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Affiliation(s)
- Shurong Liu
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275, Guangdong, China
| | - Junhong Huang
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275, Guangdong, China
- The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, 519082, Guangdong, China
| | - Jie Zhou
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275, Guangdong, China
| | - Siyan Chen
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275, Guangdong, China
- The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, 519082, Guangdong, China
| | - Wujian Zheng
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275, Guangdong, China
| | - Chang Liu
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275, Guangdong, China
| | - Qiao Lin
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275, Guangdong, China
| | - Ping Zhang
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275, Guangdong, China
| | - Di Wu
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275, Guangdong, China
- The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, 519082, Guangdong, China
| | - Simeng He
- The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, 519082, Guangdong, China
| | - Jiayi Ye
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275, Guangdong, China
| | - Shun Liu
- Department of Chemistry, The University of Chicago, Chicago, IL, 60637, USA
| | - Keren Zhou
- Department of Systems Biology, Beckman Research Institute of City of Hope, Monrovia, CA, 91016, USA
| | - Bin Li
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275, Guangdong, China.
| | - Lianghu Qu
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275, Guangdong, China.
| | - Jianhua Yang
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275, Guangdong, China.
- The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, 519082, Guangdong, China.
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Lin Q, Mu YJ, Song Y, Wang H. [A retrospective cohort study on the correlation between early energy management and bronchopulmonary dysplasia in premature infants]. Zhonghua Er Ke Za Zhi 2024; 62:239-244. [PMID: 38378285 DOI: 10.3760/cma.j.cn112140-20230918-00198] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 02/22/2024]
Abstract
Objective: To investigate the correlation between early energy supplement and bronchopulmonary dysplasia (BPD) in very preterm and very low birth weight infants. Methods: A retrospective cohort study design was used. A total of 939 preterm infants who were admitted to the Department of Neonatology of the West China Second Hospital of Sichuan University within 24 h after birth from January 2019 to December 2021 were enrolled in the study. They were born with a gestational age of <32 weeks and (or) a birth weight of <1 500 g. Of them, 250 preterm infants who developed BPD were enrolled in the BPD group, and each of them was matched to a preterm infant who did not develop BPD (matched for gestational age and birth weight) in the order of priority after calculating propensity score. Their total energy, enteral energy, parenteral energy, total fluid intake and energy per unit of fluid per week were collected within the first 2 weeks of life. The independent sample t-test or Mann Whitney U test was used for continuous variables, and the χ2 test for between-group comparisons of categorical variables. Univariate and multivariate Logistic regression analyses were used to explore the association between total energy and total fluid and BPD incidence, respectively. The dose-response relationship between parenteral energy and BPD was investigated by a generalized additive model, and the threshold effect of parenteral energy on BPD used a two-piecewise linear regression model. Results: The gestational age was (28.4±1.9) weeks in the BPD group and (29.5±1.3) weeks in the control group; the birth weight was (1 107±258) g in the BPD group and (1 324±261) g in the control group; and there were 140 males (56.0%) and 131 males (52.4%) in each group, respectively. An increase in energy per unit of fluid in the second week of life was associated with a reduced risk of BPD (OR=0.32, 95%CI 0.12-0.84, P=0.021), and an increase in total energy in the second week of life was also associated with a reduced risk of BPD, with total energy of >418-502 kJ/(kg·d) was significantly lower than when total energy was ≤334 kJ/(kg·d) (OR=0.15, 95%CI 0.03-0.85, P=0.033). There was no association between the average total fluid intake and BPD incidence (both P>0.05) in the first and second week. The increase in the proportion of parenteral energy to total energy in the second week of life was associated with an increased incidence of BPD (OR=8.45, 95%CI 2.14-33.32, P=0.003); specifically, the risk of BPD significantly increased when the parenteral energy was ≥305 kJ/(kg·d) (OR=1.02, 95%CI 1.01-1.03, P=0.003). Conclusions: Maintaining a high total energy supply in the early postnatal period in preterm infants may reduce the risk of BPD, but continued reliance on high parenteral energy to meet total energy requirements increases the risk of BPD, so enteral feeds should be initiated as early as possible and maximized as tolerated.
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Affiliation(s)
- Q Lin
- Department of Neonatology, West China Second Hospital, Sichuan University, Key Laboratory of Birth Defects and Related Disease of Women and Children, Ministry of Education, Chengdu 610041, China
| | - Y J Mu
- Department of Neonatology, West China Second Hospital, Sichuan University, Key Laboratory of Birth Defects and Related Disease of Women and Children, Ministry of Education, Chengdu 610041, China
| | - Y Song
- Department of Neonatology, West China Second Hospital, Sichuan University, Key Laboratory of Birth Defects and Related Disease of Women and Children, Ministry of Education, Chengdu 610041, China
| | - H Wang
- Department of Neonatology, West China Second Hospital, Sichuan University, Key Laboratory of Birth Defects and Related Disease of Women and Children, Ministry of Education, Chengdu 610041, China
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Wen K, Dai W, Meng X, Lin Q, Wei J, Tong L, Taylor SK, Rudchenko SA, Stojanovic MN, Kalantarov G, Trakht I. Rapid isolation of anti-idiotype aptamers for quantification of human monoclonal antibodies against SARS-CoV-2 spike protein. Biosens Bioelectron 2024; 246:115842. [PMID: 38042051 PMCID: PMC10935567 DOI: 10.1016/j.bios.2023.115842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 10/20/2023] [Accepted: 11/13/2023] [Indexed: 12/04/2023]
Abstract
Therapeutic antibodies that block viral entry have already proven to be important, first line drugs for treatments of viral infections. In the case of SARS-CoV-2, combinations of multiple therapeutic antibodies may need to be rapidly identified and formulated in a way that blocks each new, predominant variant of the virus. For efficient introduction of any new antibody combination into patients, it is important to be able to monitor patient-specific pharmacokinetics of individual antibodies, which would include the time course of their specific capacity to block the viral spike proteins. Here, we present three examples of microfluidic-based rapid isolation of companion reagents useful for establishing combination antibody therapies. These reagents are specific three-dimensional imprints of variable regions of individual human monoclonal antibodies against the -spike protein of SARS-CoV-2 virus in the form of oligonucleotide-based ligands (aptamers). We implement these anti-idiotypic aptamers as bioreceptors in graphene-based field-effect transistor sensors to accomplish label free, rapid, and sensitive detection of matching antibodies within minutes. Through this work we have demonstrated the general applicability of anti-idiotype aptamers as capture reagents in quantification of active forms of monoclonal antibodies in complex biological mixtures.
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Affiliation(s)
- Kechun Wen
- Department of Mechanical Engineering, Columbia University, New York, NY, 10027, USA
| | - Wenting Dai
- Department of Mechanical Engineering, Columbia University, New York, NY, 10027, USA
| | - Xin Meng
- Department of Mechanical Engineering, Columbia University, New York, NY, 10027, USA
| | - Qiao Lin
- Department of Mechanical Engineering, Columbia University, New York, NY, 10027, USA.
| | - Jia Wei
- Department of Biological Sciences, Columbia University, New York, NY, 10027, USA
| | - Liang Tong
- Department of Biological Sciences, Columbia University, New York, NY, 10027, USA
| | - Steven K Taylor
- Division of Experimental Therapeutics, Department of Medicine, Columbia University, New York, NY, 10032, USA
| | - Sergei A Rudchenko
- Division of Experimental Therapeutics, Department of Medicine, Columbia University, New York, NY, 10032, USA
| | - Milan N Stojanovic
- Division of Experimental Therapeutics, Department of Medicine, Columbia University, New York, NY, 10032, USA; Departments of Biomedical Engineering and Systems Biology, Columbia University, New York, NY, 10032, USA.
| | - Gary Kalantarov
- Division of Experimental Therapeutics, Department of Medicine, Columbia University, New York, NY, 10032, USA
| | - Ilya Trakht
- Division of Experimental Therapeutics, Department of Medicine, Columbia University, New York, NY, 10032, USA.
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Wen K, Meng X, Wang C, Zhao J, Botros S, Lin Q. Assessing Aptamer-Analyte Binding Kinetics by Microfluidic Fluorescence Microscopy. Sens Actuators B Chem 2024; 401:135018. [PMID: 38558786 PMCID: PMC10977918 DOI: 10.1016/j.snb.2023.135018] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
Kinetic measurement plays a crucial role in understanding aptamer binding mechanisms and identifying appropriate aptamers for clinical and research applications. Current techniques, while well established, generally require large sample volumes, bulky and expensive instruments operated by trained personnel, and are hence not readily accessible to resource-limited research laboratories. This paper presents a fluorescence microscopy-based microfluidic assay for measuring aptamer-analyte binding kinetics in a simple and cost-effective manner. Kinetic measurements are achieved by monitoring time-course fluorescence of fluorescently labeled aptamers as they bind to the targets trapped in a microfluidic chip. Fluorescence measurements are performed on a standard fluorescence microscope and are accessible to laboratories with only modest resources. Moreover, microfluidic technology allows efficient and cost-effective immobilization of small amounts of target molecules or live cells as well as flow-based manipulation of aptamers for the measurements. Kinetic measurements of aptamer binding to immunoglobulin E protein and CCRF-CEM cells have yielded results consistent with those obtained from established methods, demonstrating the potential utility of our method for exploring aptamer-target interactions and identifying aptamers that best suit specific given biomedical applications.
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Affiliation(s)
- Kechun Wen
- Department of Mechanical Engineering, Columbia University, New York, NY, 10027, USA
| | - Xin Meng
- Department of Mechanical Engineering, Columbia University, New York, NY, 10027, USA
| | - Chengxi Wang
- Department of Mechanical Engineering, Columbia University, New York, NY, 10027, USA
| | - Jingyang Zhao
- Department of Mechanical Engineering, Columbia University, New York, NY, 10027, USA
| | - Samantha Botros
- Department of Mechanical Engineering, Columbia University, New York, NY, 10027, USA
| | - Qiao Lin
- Department of Mechanical Engineering, Columbia University, New York, NY, 10027, USA
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Dai XM, Jiang L, Xu QY, Zhu Y, Lin Q, Shen YY, Li XZ. [A case of juvenile systemic lupus erythematosus with autoimmune hypophysitis]. Zhonghua Er Ke Za Zhi 2024; 62:177-179. [PMID: 38264820 DOI: 10.3760/cma.j.cn112140-20231020-00306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/25/2024]
Affiliation(s)
- X M Dai
- Department of Nephrology and Immunology, Children's Hospital of Soochow University, Suzhou 215000, China
| | - L Jiang
- Department of Nephrology and Immunology, Children's Hospital of Soochow University, Suzhou 215000, China
| | - Q Y Xu
- Department of Nephrology and Immunology, Children's Hospital of Soochow University, Suzhou 215000, China
| | - Y Zhu
- Department of Nephrology and Immunology, Children's Hospital of Soochow University, Suzhou 215000, China
| | - Q Lin
- Department of Nephrology and Immunology, Children's Hospital of Soochow University, Suzhou 215000, China
| | - Y Y Shen
- Department of Nephrology and Immunology, Children's Hospital of Soochow University, Suzhou 215000, China
| | - X Z Li
- Department of Nephrology and Immunology, Children's Hospital of Soochow University, Suzhou 215000, China
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You R, Liu YP, Chen XZ, Chen JH, Chan JYW, Fang JG, Hu CS, Han YQ, Han F, Hu GY, Jiang Y, Jiang WH, Kong L, Li JG, Lin Q, Liu Y, Liu YH, Lu YT, Ng WT, Man PK, Sun JW, Tao L, Yi JL, Zhu XD, Wen WP, Chen MY, Han DM. Surgical treatment of nasopharyngeal cancer - a consensus recommendation from two Chinese associations. Rhinology 2024; 62:23-34. [PMID: 37902657 DOI: 10.4193/rhin23.054] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2023]
Abstract
BACKGROUND Surgical treatment is playing an increasingly important role in the management of nasopharyngeal carcinoma (NPC). This consensus focuses on the indications for optimal surgery, and surgical methods in the whole process of treatment for NPC to provide a useful reference to assist these difficult clinical decisions. METHODOLOGY A thorough review of available literature on NPC and surgery was conducted by the Association for the prevention and treatment of nasopharyngeal carcinoma in China, international exchange and promotion Association for medicine and healthcare, and the Committee on nasopharyngeal cancer of Guangdong provincial anticancer association. A set of questions and a preliminary draft guideline was circulated to a panel of 1096 experienced specialists on this disease for voting on controversial areas and comments. A refined second proposal, based on a summary of the initial voting and different opinions expressed, was recirculated to the experts in two authoritative medical science and technology academic groups in the prevention and treatment of NPC in China for review and reconsideration. RESULTS The initial round of questions showed variations in clinical practice even among similar specialists, reflecting the lack of high-quality supporting data and resulting difficulties in formulating clinical decisions. Through exchange of comments and iterative revisions, recommendations with high-to-moderate agreement were formulated on general treatment strategies and details of surgery, including indications and surgical approaches. CONCLUSION By standardizing the surgical indications and practice, we hope not only to improve the surgical outcomes, but also to highlight the key directions of future clinical research in the surgical management of NPC.
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Affiliation(s)
- R You
- Department of Nasopharyngeal Carcinoma, Sun Yat-sen University Cancer Center, Guangzhou, P. R. China; Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, P. R. China; Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, P. R. China
| | - Y P Liu
- Department of Nasopharyngeal Carcinoma, Sun Yat-sen University Cancer Center, Guangzhou, P. R. China; Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, P. R. China; Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, P. R. China
| | - X Z Chen
- Department of Radiation Oncology, Zhejiang Cancer Hospital, Zhejiang Province Key Laboratory of Radiation Oncology, Hangzhou, P. R. China
| | - J H Chen
- Department of Neurosurgery, Third Affiliated Hospital of Southern Medical University, Guangzhou, P. R. China
| | - J Y W Chan
- Department of Surgery, LKS Faculty of Medicine, The University of Hong, Hong Kong, P. R. China
| | - J G Fang
- Department of Otolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, P. R. China; Key Laboratory of Otolaryngology Head and Neck Surgery, Ministry of Education, Beijing, P. R. China
| | - C S Hu
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, P. R. China
| | - Y Q Han
- Department of Radiation Oncology, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, P. R. China
| | - F Han
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, P. R. China
| | - G Y Hu
- Department of Oncology, Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology, Wuhan, P. R. China
| | - Y Jiang
- Department of Otolaryngology Head and Neck Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, P. R. China
| | - W H Jiang
- Department of Otolaryngology Head and Neck Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, P. R. China
| | - L Kong
- Department of Radiation Oncology, Shanghai Proton and Heavy Ion Center, Fudan University Cancer Hospital, Shanghai, P. R. China
| | - J G Li
- Department of Radiation Oncology, Jiangxi Cancer Hospital of Nanchang University, Nanchang, Jiangxi, P. R. China
| | - Q Lin
- Department of Radiation Oncology, The First Affiliated Hospital of Xiamen University, Xiamen, P. R. China
| | - Y Liu
- Department of Otolaryngology Head and Neck Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, P. R. China
| | - Y H Liu
- Department of Otorhinolaryngology Head and Neck Surgery, the Second Affiliated Hospital of Nanchang University, Nanchang, P. R. China
| | - Y T Lu
- Department of Otorhinolaryngology, Shenzhen Second People's Hospital/The First Affiliated Hospital of Shenzhen University, Shenzhen, P. R. China
| | - W T Ng
- Department of Clinical Oncology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region, P. R. China
| | - P K Man
- Department of Otorhinolaryngology, Centro Hospitalar C.S. Januario Macau, Macau, P. R. China
| | - J W Sun
- Department of Otorhinolaryngology-Head and Neck Surgery, The First Affiliated Hospital, University of Science and Technology of China, Hefei, P. R. China
| | - L Tao
- ENT Institute and Department of Otorhinolaryngology, Eye and ENT Hospital, Fudan University, Shanghai, P. R. China
| | - J L Yi
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, P. R. China
| | - X D Zhu
- Department of Radiation Oncology, The Affiliated Tumor Hospital of Guangxi Medical University, Guangxi, P.R. China
| | - W P Wen
- Department of Otolaryngology, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - M Y Chen
- Department of Nasopharyngeal Carcinoma, Sun Yat-sen University Cancer Center, Guangzhou, P. R. China; Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, P. R. China; Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, P. R. China
| | - D M Han
- Department of Otolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, P. R. China; Key Laboratory of Otolaryngology Head and Neck Surgery, Ministry of Education, Beijing, P. R. China
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Huang Z, Tu X, Yu T, Zhan Z, Lin Q, Huang X. Peritumoural MRI radiomics signature of brain metastases can predict epidermal growth factor receptor mutation status in lung adenocarcinoma. Clin Radiol 2024; 79:e305-e316. [PMID: 38000953 DOI: 10.1016/j.crad.2023.10.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 10/05/2023] [Accepted: 10/18/2023] [Indexed: 11/26/2023]
Abstract
AIM To investigate whether magnetic resonance imaging (MRI) radiomics features of brain metastases (BMs) can predict epidermal growth factor receptor (EGFR) mutation status in lung adenocarcinoma. MATERIALS AND METHODS Between June 2014 and December 2022, 58 histopathologically confirmed lung adenocarcinoma patients (27 with EGFR wild-type, 31 with EGFR mutation) who underwent gadobenate dimeglumine-enhanced brain MRI were recruited retrospectively. A total of 123 metastatic brain lesions were allocated randomly into the training cohort (n=86) and test cohort (n=37) at a ratio of 7:3. Radiomics models based on multi-sequence MRI images in different regions such as volume of interest (VOI)enhancing tumour, VOIwholetumour, VOIperitumour 1mm, VOIperitumour 3mm, and VOIperitumour 5mm were built. The optimal radiomics model was integrated into the clinical or radiological indicators to construct a fusion model through multivariable logistic regression analysis. RESULTS The optimal radiomics model based on the VOIperitumour 1mm, a combination of nine features selected from the fluid-attenuated inversion recovery (FLAIR) sequence, yielded areas under the curves (AUCs) of >0.75 in the training and test cohorts. The prediction of the fusion model with integration of clinical factors (age) and radiomics score (the optimal radiomics model) was not better than that of the optimal radiomics model alone in the test cohort (AUC: 0.808 and 0.785, respectively, p=0.525). CONCLUSION The FLAIR radiomics model based on VOIperitumour 1mm as an effective biomarker helps predict EGFR mutation status in lung adenocarcinoma patients with BMs and then assists clinicians in selecting optimal treatment strategies.
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Affiliation(s)
- Z Huang
- Department of Radiology, Longyan First Affiliated Hospital of Fujian Medical University, No. 105 North 91 Road, Xinluo District, Fujian, 364000, China.
| | - X Tu
- Department of Orthopedics, Longyan First Affiliated Hospital of Fujian Medical University, No. 105 North 91 Road, Xinluo District, Fujian, 364000, China
| | - T Yu
- Department of Radiology, Longyan First Affiliated Hospital of Fujian Medical University, No. 105 North 91 Road, Xinluo District, Fujian, 364000, China
| | - Z Zhan
- Department of Radiology, Longyan First Affiliated Hospital of Fujian Medical University, No. 105 North 91 Road, Xinluo District, Fujian, 364000, China
| | - Q Lin
- Department of Radiology, Longyan First Affiliated Hospital of Fujian Medical University, No. 105 North 91 Road, Xinluo District, Fujian, 364000, China
| | - X Huang
- Department of Radiology, Longyan First Affiliated Hospital of Fujian Medical University, No. 105 North 91 Road, Xinluo District, Fujian, 364000, China
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12
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Li C, Liu S, Zhong J, Zou T, Yan W, Lin Q, Xiao Y, Wang Y. Optimized helical intermedium-period fiber grating for breathing monitoring. Opt Express 2024; 32:1207-1217. [PMID: 38297677 DOI: 10.1364/oe.506338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Accepted: 11/22/2023] [Indexed: 02/02/2024]
Abstract
The investigation into the spectral properties and refractive index (RI) sensitivities at low RI region of helical intermedium-period fiber gratings (HIPFGs) with varied periods ranging from 10-48 μm is presented in detail for the first time. The structure of HIPFG is optimized for RI sensing in the RI range of 1.3-1.33 by comparing the optical properties of HIPFGs with different grating periods. The HIPFG with optimized structure is demonstrated to have a high average sensitivity of 302.5 nm/RIU in the RI ranging from 1.3 to 1.33, which is two orders more elevated than the traditional long-period fiber gratings. The improved HIPFG is also experimentally applied to breath monitoring in different states. Normal breath, slow breath, fast breath, and unhealthy breath are distinguished based on breathing rate, intensity, and time of exhalation and inhalation. The fastest response time is determined to be 10 ms. The results demonstrate that the optical fiber's sensitivity in the low RI region can be increased by shortening its period, offering a special strategy for improving detection performance of HIPFGs. By verifying its performance in breathing monitoring, it is proved that the optimized HIPFG sensor has the great potential to expand medical applications.
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Li B, Liu S, Zheng W, Liu A, Yu P, Wu D, Zhou J, Zhang P, Liu C, Lin Q, Ye J, He S, Huang Q, Zhou H, Chen J, Qu L, Yang J. RIP-PEN-seq identifies a class of kink-turn RNAs as splicing regulators. Nat Biotechnol 2024; 42:119-131. [PMID: 37037902 DOI: 10.1038/s41587-023-01749-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 03/13/2023] [Indexed: 04/12/2023]
Abstract
A kink-turn (K-turn) is a three-dimensional RNA structure that exists in all three primary phylogenetic domains. In this study, we developed the RIP-PEN-seq method to identify the full-length sequences of RNAs bound by the K-turn binding protein 15.5K and discovered a previously uncharacterized class of RNAs with backward K-turn motifs (bktRNAs) in humans and mice. All bktRNAs share two consensus sequence motifs at their fixed terminal position and have complex folding properties, expression and evolution patterns. We found that a highly conserved bktRNA1 guides the methyltransferase fibrillarin to install RNA methylation of U12 small nuclear RNA in humans. Depletion of bktRNA1 causes global splicing dysregulation of U12-type introns by impairing the recruitment of ZCRB1 to the minor spliceosome. Most bktRNAs regulate the splicing of local introns by interacting with the 15.5K protein. Taken together, our findings characterize a class of small RNAs and uncover another layer of gene expression regulation that involves crosstalk among bktRNAs, RNA splicing and RNA methylation.
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Affiliation(s)
- Bin Li
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Shurong Liu
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Wujian Zheng
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
- The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - Anrui Liu
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
- The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - Peng Yu
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Di Wu
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
- The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - Jie Zhou
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
- The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - Ping Zhang
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Chang Liu
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Qiao Lin
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
- The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - Jiayi Ye
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
- The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - Simeng He
- The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - Qiaojuan Huang
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Hui Zhou
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Jianjun Chen
- Department of Systems Biology, Beckman Research Institute of City of Hope, Monrovia, CA, USA
| | - Lianghu Qu
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China.
| | - Jianhua Yang
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China.
- The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China.
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Cui W, Lin Q, Wu Y, Wang X, Zhang Y, Lin X, Zhang L, Liu X, Han L, Zhou Z. Creation of Architecturally Minimal Transcriptionally Activating Riboswitches Responsive to Theophylline Reveals an Unconventional Design Strategy. ACS Synth Biol 2023; 12:3716-3729. [PMID: 38052004 DOI: 10.1021/acssynbio.3c00519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2023]
Abstract
Riboswitches are noncoding RNA switches that are largely utilized in bacteria and play a significant role in synthetic biology. Nonetheless, their natural counterparts possess lengthy sequences and intricate structures, posing challenges for their modular integration into complex gene circuits. Consequently, it is imperative to develop simplified synthetic riboswitches that can be effortlessly incorporated into gene circuits. The conventional approach to generate synthetic riboswitches entails tedious library construction and extensive screening, which frequently yields suboptimal performance. To overcome this obstacle, alternative methods are urgently needed. In this study, we created a novel approach to designing a diverse set of transcription-activating riboswitches that exhibit high performance and broad compatibility. The strategy involved starting with a synthetic theophylline RNA aptamer and designing an expression platform that forms a transcriptional terminator in its inactive state but switches to an antiterminator when it is activated. Several sequences were designed, constructed, and subjected to virtual screening, resulting in the identification of two transcription-activating riboswitches. These riboswitches were then engineered to reduce the basal leakage and increase the activation level through extending the hairpin region using a screened random sequence. These architecturally minimal synthetic riboswitches were highly adapted to different constitutive promoters in a modular manner, generating a differentially responsive output to theophylline. As a proof-of-principle, the synthetic riboswitches were applied to rewire a synthetic quorum-sensing circuit (QSC). The reprogrammed QSC successfully modulated the temporal responsive profile against the activation. This strategy is expected to expand the variety of high-performance riboswitches that are responsive to different ligands, thereby further facilitating the design of complex genetic circuits.
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Affiliation(s)
- Wenjing Cui
- School of Biotechnology, Jiangnan University, Wuxi, Jiangsu 214122, China
- Key Laboratory of Industrial Biotechnology, MOE, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Qiao Lin
- School of Biotechnology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Yi Wu
- School of Biotechnology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Xinran Wang
- School of Biotechnology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Yuqing Zhang
- School of Biotechnology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Xinyu Lin
- School of Biotechnology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Linpei Zhang
- School of Biotechnology, Jiangnan University, Wuxi, Jiangsu 214122, China
- Key Laboratory of Industrial Biotechnology, MOE, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Xu Liu
- School of Biotechnology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Laichuang Han
- School of Biotechnology, Jiangnan University, Wuxi, Jiangsu 214122, China
- Key Laboratory of Industrial Biotechnology, MOE, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Zhemin Zhou
- School of Biotechnology, Jiangnan University, Wuxi, Jiangsu 214122, China
- Key Laboratory of Industrial Biotechnology, MOE, Jiangnan University, Wuxi, Jiangsu 214122, China
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Huang Z, Lin Q, Li J, Xu S, Lv S, Xie F, Wang J, Li B. Ruthenium-Catalyzed Dehydrogenative Intermolecular O-H/Si-H/C-H Silylation: Synthesis of ( E)-Alkenyl Silyl-Ether and Silyl-Ether Heterocycle. Molecules 2023; 28:7186. [PMID: 37894665 PMCID: PMC10609488 DOI: 10.3390/molecules28207186] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 10/04/2023] [Accepted: 10/17/2023] [Indexed: 10/29/2023] Open
Abstract
Selective dehydrogenative silylation is one of the most valuable tools for synthesizing organosilicon compounds. In this study, a regio- and stereoselective ruthenium-catalyzed dehydrogenative intermolecular silylation was firstly developed to access (E)-alkenyl silyl-ether derivatives and silyl-ether heterocycles with good functional group tolerance. Furthermore, two pathways for RuH2(CO)(PPh3)3/NBE-catalyzed dehydrogenative intermolecular silylation of alcohols and alkenes as well as intermolecular silylation of naphthol derivatives were investigated with H2SiEt2 as the hydrosilane reagent.
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Affiliation(s)
- Ziwei Huang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China; (Z.H.); (Q.L.); (J.L.); (S.X.); (S.L.)
- Guangdong Wamo New Material Technology Co., Ltd., Jiangmen 529020, China
| | - Qiao Lin
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China; (Z.H.); (Q.L.); (J.L.); (S.X.); (S.L.)
| | - Jiefang Li
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China; (Z.H.); (Q.L.); (J.L.); (S.X.); (S.L.)
| | - Shanshan Xu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China; (Z.H.); (Q.L.); (J.L.); (S.X.); (S.L.)
| | - Shaohuan Lv
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China; (Z.H.); (Q.L.); (J.L.); (S.X.); (S.L.)
| | - Feng Xie
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China; (Z.H.); (Q.L.); (J.L.); (S.X.); (S.L.)
| | - Jun Wang
- Department of Chemistry, Hong Kong Baptist University, Hong Kong, China;
| | - Bin Li
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China; (Z.H.); (Q.L.); (J.L.); (S.X.); (S.L.)
- Guangdong Provincial Key Laboratory of Large Animal Models for Biomedicine, Wuyi University, Jiangmen 529020, China
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16
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Zhu Y, Sun X, Jiang C, Lin Q, Weng D, Chen W, Xu Y, Shang J. Adaptive Radiotherapy Guided by PET/CT in Patients with Locally Advanced Non-Small Cell Lung Cancer: A Phase II Randomized Study. Int J Radiat Oncol Biol Phys 2023; 117:S28. [PMID: 37784466 DOI: 10.1016/j.ijrobp.2023.06.288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) The aim of this study was to determine whether adaptive radiotherapy guided by functional imaging with flourine-18 fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT) can improve local tumor control in patients with locally advanced non-small cell lung cancer (LA-NSCLC). MATERIALS/METHODS This was a phase II randomized study comparing the efficacy and safety between PET-guided adaptive radiotherapy and conventional radiotherapy. The primary end point was 2-year local-regional tumor control (LRTC) rate. Secondary end points included local-regional progression-free survival (LR-PFS), progression-free survival (PFS), overall survival (OS), and radiation-related toxicities. RESULTS Between November 2012 and June 2017, 72 patients were 1:1 randomized to adaptive and conventional arms. The 2- and 5-year LRTC rates were 63.2% and 58.0% versus 43.0% and 37.6% (P = 0.035) in the adaptive and conventional arms, respectively. The median LR-PFS (14.3 versus 12.0 months; P = 0.010) and PFS (12.8 versus 8.9 months; P = 0.034) were significantly longer in the adaptive arm than in the conventional arm. The median OS was 36.3 months in the adaptive arm and 28.8 months in the conventional arm (P = 0.266). The esophageal volume of receiving ≥60 Gy (V60) in the adaptive arm was lower than that in the conventional arm (P = 0.011), while the V30 for the heart in the adaptive arm was lower than that in the conventional arm (P = 0.077). Other radiological metrological parameters of tumor, organs at risk, and the incidence of ≥grade 2 radiation-related toxicities were not significantly different between the 2 arms. CONCLUSION Compared with conventional radiotherapy, PET-guided adaptive radiotherapy significantly improved the 2-year LRTC rate, LR-PFS, and PFS without increased risks of radiation-related toxicities in patients with LA-NSCLC.
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Affiliation(s)
- Y Zhu
- Department of Radiation Oncology, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China
| | - X Sun
- Department of Radiation Oncology, Institute of Cancer Research and Basic Medical Sciences of Chinese Academy of Sciences, Cancer Hospital of University of Chinese Academy of Sciences, Zhejiang Cancer Hospital, Hangzhou, China
| | - C Jiang
- Department of Radiation Oncology, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China
| | - Q Lin
- Department of Radiation Oncology, Institute of Cancer Research and Basic Medical Sciences of Chinese Academy of Sciences, Cancer Hospital of University of Chinese Academy of Sciences, Zhejiang Cancer Hospital, Hangzhou, China
| | - D Weng
- Department of Radiation Oncology, Institute of Cancer Research and Basic Medical Sciences of Chinese Academy of Sciences, Cancer Hospital of University of Chinese Academy of Sciences, Zhejiang Cancer Hospital, Hangzhou, China
| | - W Chen
- Department of Radiation Oncology, Zhejiang Provincial Hospital, Hangzhou, China
| | - Y Xu
- Department of Radiation Oncology, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China; Department of Radiation Oncology, Institute of Cancer Research and Basic Medical Sciences of Chinese Academy of Sciences, Cancer Hospital of University of Chinese Academy of Sciences, Zhejiang Cancer Hospital, Hangzhou, China
| | - J Shang
- Department of Head and Neck Surgery, The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, China
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17
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Cao L, Yang J, Zhou M, Yu B, Lin Q, Yao Y, Wu HL, Zhu QW, Ye M, Xie H, Wu JW, Chen JY. Does Dual Anti-HER2 Therapy Increase Early Cardiac Toxicity in Comparison with Trastuzumab Alone in Breast Cancer Patients Receiving Adjuvant Radiotherapy? A Multicenter Retrospective Study. Int J Radiat Oncol Biol Phys 2023; 117:e166. [PMID: 37784767 DOI: 10.1016/j.ijrobp.2023.06.1002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Adjuvant trastuzumab in combination with RT has proved its safety in terms of cardiac events. Dual anti-HER2 therapy with pertuzumab is currently standard adjuvant therapy in N+ and high-risk N0 early breast cancer (BC) patients. Our study aims to find if it increases early cardiac toxicity compared with trastuzumab alone in BC patients receiving adjuvant radiotherapy. MATERIALS/METHODS Operable BC patients who received adjuvant radiotherapy (RT) and trastuzumab with or without pertuzumab between January 2017 and September 2020 in 7 Chinese centers were retrospectively reviewed. The cardiac examination included ultrasonography, electrocardiogram (ECG), NT-proBNP, and cTnI before RT and during follow-up. The cardiac event was any new-onset symptomatic heart disease or abnormality in the cardiac examination after RT. RESULTS In total, 711 patients with a median age of 52 years were included, of whom 567 (79.7%) patients were treated with trastuzumab-only and 144 (20.3%) patients received dual anti-HER2 therapy. Adjuvant RT was given concurrently in 140/144 (97.2%) of dual anti-HER2 therapy and 562/567 (99.1%) of trastuzumab alone, respectively. With a median follow-up of 11 months, no patients developed symptomatic heart diseases. Among patients with normal baseline, 17 (2.4%), 86 (12.1%), 18 (2.5%) and 14 (7.3%) developed new-onset diastolic dysfunction, left ventricular ejection fraction (LVEF) decline, abnormal ECG, and abnormal NT-proBNP, respectively. No significant difference was found between the trastuzumab-only and dual anti-HER2 cohort in the incidence of all kinds of new-onset cardiac events (all p > 0.1). Multivariate analysis showed that left-sided (vs right-sided) RT significantly increased the risk of ECG abnormality (HR = 2.32, 95% CI 1.62-3.32, p<0.001). Increased age was an independent risk factor for diastolic dysfunction (HR = 1.1, 95% CI 1.02-1.18, p = 0.0098). Dosimetric analysis showed that patients who developed any cardiac events had increased mean heart dose (397.67±251.08 vs 344.87±236.75 cGy, p = 0.032). A significant increase in risk of cardiac events was found in patients with mean heart dose > 450 cGy (HR = 1.55, 95% CI 1.17-2.05, p = 0.0024), V5 > 26% (HR = 1.51, 95% CI 1.09-2.09, p = 0.013), and V30 > 5.5% (HR = 1.49, 95% CI 1.09-2.04, p = 0.0117), respectively. Further analysis was done in the subgroup of patients treated with left-sided RT, internal mammary nodes RT, or anthracyclines, no difference in risk of cardiac events was found between trastuzumab alone and dual anti-HER2 therapy in concurrent with RT (all p > 0.05). CONCLUSION Compared with trastuzumab-only, dual anti-HER2 therapy does not increase early cardiac toxicity in combination with adjuvant RT in BC patients. Cardiac radiation exposure remains the primary risk factor associated with early cardiac toxicity.
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Affiliation(s)
- L Cao
- Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - J Yang
- Department of Radiation Oncology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - M Zhou
- Department of Radiotherapy, The Affiliated Changzhou Second People's Hospital of Nanjing Medical University, Changzhou, China
| | - B Yu
- Department of Radiotherapy, the Affiliated Jiangyin Hospital of Nantong University, Jiangyin, China
| | - Q Lin
- Department of Radiation Oncology, Shanghai Tenth People's Hospital, Shanghai, China
| | - Y Yao
- Department of Radiotherapy, Shanghai Ninth People's Hospital, Shanghai, China
| | - H L Wu
- Department of Radiation Oncology, Shanghai Tenth People's Hospital, Shanghai, China
| | - Q W Zhu
- Department of Radiation Oncology, Affiliated Tumor Hospital of Nantong University, Nantong, China
| | - M Ye
- Department of Radiation Oncology, Renji Hospital, Shanghai Jiaotong University School of Medicine, China, Shanghai, China
| | - H Xie
- Department of Radiation Oncology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - J W Wu
- Department of Radiotherapy, Shanghai Ninth People's Hospital, Shanghai, China
| | - J Y Chen
- Department of Radiation Oncology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
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Bi N, Deng L, Hu X, Shayan G, Zhao L, Zhang L, Jiang W, Zhang J, Zhu X, Wang Y, Ge H, Cao J, Lin Q, Chen M, Wang L. 30 Gy vs. 45 Gy Consolidative Thoracic Radiation (cTRT) for Extensive Stage Small Cell Lung Cancer (ES-SCLC): A Multicenter, Randomized, Phase 3 Trial. Int J Radiat Oncol Biol Phys 2023; 117:S56-S57. [PMID: 37784527 DOI: 10.1016/j.ijrobp.2023.06.350] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Consolidative thoracic radiotherapy (cTRT) showed potential benefit to extensive stage small cell lung cancer (ES-SCLC). However, the optimum dose of cTRT is unknown. The purpose of this randomized trial was to compare the effect of 45 Gy in 15 fractions with 30 Gy in 10 fractions cTRT in ES-SCLC. MATERIALS/METHODS This phase III, randomized trial was conducted in 12 public hospitals in China. Eligible patients with pathologically confirmed ES-SCLC who responded to 4-6 cycles of etoposide plus cisplatin (EP) or carboplatin (EC) chemotherapy were randomized 1:1 to receive either 30 Gy in 10 fractions or 45 Gy in 15 fractions cTRT. The primary outcome was 2-year overall survival (OS). Secondary outcomes included 2-year progression-free survival (PFS), 2-year local control (LC) and radiation treatment related toxicity. The primary objective was to detect an OS improvement in 45 Gy cTRT group at 2 years from 13% to 26% assuming a two-sided a = 0.05 and power of 85%, with a planned sample size of 186 patients. This trial was registered with Clinical Trials.gov, number NCT02675088. RESULTS Between January 15, 2016, and September 20, 2022, 90 patients were randomly assigned either 30 Gy in 10 fractions (n = 50) or 45 Gy in 15 fractions (n = 40) cTRT group. Recruitment to the trial closed early due to slow accrual since first-line chemoimmunotherapy has become the new standard of care for ES-SCLC. The median age of patients was 58 years, 87.8% were male, 76.7% had a smoking history, 95.6% received IMRT, and 58.9% received prophylactic cranial irradiation. At a median follow-up of 39.9 months (IQR 27.2-59.2), there was no significant difference in the 2-year OS between the 45 Gy group and the 30 Gy group, at 43.4% (95% CI 29.3%-64.3%) and 40.0% (95% CI 27.9%-59.1%), respectively (log-rank p = 0.62; HR 1.13 [95% CI 0.69-1.84]). The 2-year PFS was 12.1% (95% CI 4.3%-33.8%) in the 45 Gy group and 9.0% (95% CI 3.2%-25.2%) in the 30 Gy group (log-rank p = 0.25, HR 0.76(95% CI [0.478-1.22]). There were also no significant differences in locoregional recurrence free survival (log-rank p = 0.75; HR 0.888 [95% CI 0.423-1.863]) and distant metastasis free survival (log-rank p = 0.95; HR 1.015 [95% CI 0.624-1.651]) between two groups. No grade 5 toxicity was observed in both groups. Patients treated with higher cTRT dose presented with increased incidence of grade 3+ radiation pneumonitis (10% vs 2%) and hematological toxicity (20% vs 12.5%). CONCLUSION This randomized trial did not find a higher probability of survival improvement in patients with ES-SCLC receiving cTRT of 45 Gy in 15 fractions compared with 30 Gy in 10 fractions. In contrast, there was an increase in toxicity, especially radiation pneumonitis. Additional randomized studies investigating the role of cTRT in ES-SCLC after a response to chemoimmunotherapy are warranted.
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Affiliation(s)
- N Bi
- 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, China
| | - L Deng
- 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, China
| | - X Hu
- Department of Radiation Oncology, Zhejiang Cancer Hospital, Institute of Basic Medical Sciences and Cancer Research, Chinese Academy of Sciences, Zhejiang Provincial Key Laboratory of Radiation Oncology, Hangzhou, China
| | - G Shayan
- 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, China
| | - L Zhao
- Department of Radiation Oncology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, Tianjin's Clinical Research Center for Cancer, Tianjin, China
| | - L Zhang
- Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - W Jiang
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital & Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen, China, Shenzhen, China
| | - J Zhang
- Shanghai Medical College, Fudan University, Shanghai, China
| | - X Zhu
- Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & Nanjing Medical University Affiliated Cancer Hospital, Nanjing, China
| | - Y Wang
- Department of Radiotherapy, Air Force Medical Center, Beijing, China
| | - H Ge
- The Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou, China
| | - J Cao
- Shanxi Province Cancer Hospital/ Shanxi Hospital Affiliated to Cancer Hospital, Chinese Academy of Medical Sciences/Cancer Hospital Affiliated to Shanxi Medical University, Taiyuan, China
| | - Q Lin
- The First Affiliated Hospital of Xiamen University, Xiamen, China
| | - M Chen
- Zhejiang Cancer Hospital, Hangzhou, China; Department of Radiation Oncology, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - 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, China, Beijing, China; Department of Radiation Oncology, National Cancer Center/Cancer Hospital & Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen, China
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Chen J, Xie JR, Xu FF, Cai G, Wang SB, Huang XB, Zhu QW, Zhao YT, Lin Q, Ye M, Yao Y, Yu B, Xu HP, Cai R, Qi WX, Xu C, Cao L. Quality Assurance of Protocol Compliance in a Multicenter Randomized Trial Investigating the Role of Hypofractionated Comprehensive Reginal Nodal Irradiation in Node-Positive Breast Cancer (HARVEST). Int J Radiat Oncol Biol Phys 2023; 117:e168-e169. [PMID: 37784772 DOI: 10.1016/j.ijrobp.2023.06.1007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) The HARVEST trial (NCT03829553) is a phase III, multicenter, randomized clinical trial to explore efficacy and safety of hypofractionated irradiation (HFI) involving regional nodal irradiation (RNI, including internal mammary nodes, IMN) in N+ breast cancer patients treated with mastectomy or breast conserving surgery (BCS). Current study aims to analyze the dosimetric quality assurance so as to evaluate the compliance to the trial protocol. MATERIALS/METHODS Eligible patients were randomly assigned (1:1) to receive conventional fractionated irradiation (CFI: 50 Gy/25Fx) or HFI (40.05 Gy/15Fx), which is delivered to ipsilateral chest wall or whole breast (CW/WB) with tumor bed boost (HFI: 10.68 Gy/4Fx; CFI: 10 Gy/5Fx) and comprehensive RNI (supra/infraclavicular nodes and IMN in each patient, lower axilla if indicated) by using IMRT technique. The plan quality was evaluated based on dose distribution, dose volume histogram (DVH) and field parameters. The target coverage, including planning target volume of CW/WB (PTV1) and tumor bed (PTV2) and doses of the organs at risk (OARs) were evaluated. The LQ model was used to convert doses of OARs in HFI group using α/β = 3 Gy (EQD23) for comparison. RESULTS Between Feb 21, 2019 and Feb 14, 2022, 801 patients were enrolled at 8 centers with 401 and 400 in CFI and HFI group, respectively. There were 182 patients received BCS and 387 patients were with more than three positive lymph nodes. In the CFI group, the D90 and V45 of PTV1 reached the prescribed dose in 70.6% and 96.0% of the patients, respectively. In the HFI group, the D90 and V36 of PTV1 reached the prescribed dose in 87.8% and 95.5% of the patients, respectively. When the tumor bed was irradiated, the D90 of PTV2 reached the prescribed dose in 95.6% in the CFI group and 100% in the HFI group, respectively. The mean D90 of PTV1 and PTV2 were 50.09±0.65 Gy and 60.63±0.91 Gy in CFI group while 40.11±0.56 Gy and 50.79±2.03 Gy in HFI group. For OARs constraints, protocol compliance was all above 95% (heart: 95.3%; ipsilateral lung: 95.5%; contralateral lung: 97.1%; humeral head: 98.2% and spinal cord: 100%) with no significant difference between CFI and HFI groups. For patients with left-sided breast cancer, the Dmean of the heart was 5.10±1.75 Gy vs. 4.59±1.86 Gy (EQD23) in CFI and HFI groups (p = 0.51), respectively. No significant differences in Dmean of the heart (1.45±0.71 Gy vs. 1.33±0.77 Gy (EQD23), p = 0.40) was found either between two groups in right-sided patients. The differences were significant in the Dmean of the ipsilateral lung (13.37±1.99 Gy vs. 11.17±3.50 Gy (EQD23), p<0.01), contralateral lung (0.88±0.73 Gy vs. 0.74±0.61 Gy (EQD23), p<0.01) and the ipsilateral humeral head (15.27±7.62 Gy vs. 13.05±6.19 Gy (EQD23), p<0.01) and the Dmax of spinal cord (21.40±8.82 Gy vs. 19.47±7.99 Gy (EQD23), p = 0.05) between CFI and HFI groups. CONCLUSION A high degree of compliance with protocol dose constraints was found for treatment plans in the HARVEST trial and doses to the most of OARs decreased in HFI group.
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Affiliation(s)
- J Chen
- Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - J R Xie
- Department of Radiation Oncology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - F F Xu
- Department of Radiation Oncology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - G Cai
- Department of Radiation Oncology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - S B Wang
- Department of Radiation Oncology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - X B Huang
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Q W Zhu
- Department of Radiation Oncology, Affiliated Tumor Hospital of Nantong University, Nantong, China
| | - Y T Zhao
- Department of Radiation Oncology, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China
| | - Q Lin
- Department of Radiation Oncology, Shanghai Tenth People's Hospital, Shanghai, China
| | - M Ye
- Renji Hospital Affiliated Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Y Yao
- Department of Radiotherapy, Shanghai Ninth People's Hospital, Shanghai, China
| | - B Yu
- Department of Radiotherapy, the Affiliated Jiangyin Hospital of Nantong University, Jiangyin, China
| | - H P Xu
- Department of Radiation Oncology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - R Cai
- Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - W X Qi
- Department of Radiation Oncology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - C Xu
- Department of Radiation Oncology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - L Cao
- Department of Radiation Oncology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
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Dawson G, Lin Q, Neary MC, Diao T. Ligand Redox Activity of Organonickel Radical Complexes Governed by the Geometry. J Am Chem Soc 2023; 145:20551-20561. [PMID: 37695362 PMCID: PMC10515493 DOI: 10.1021/jacs.3c07031] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Indexed: 09/12/2023]
Abstract
Nickel-catalyzed cross-coupling reactions often employ bidentate π-acceptor N-ligands to facilitate radical pathways. This report presents the synthesis and characterization of a series of organonickel radical complexes supported by bidentate N-ligands, including bpy, phen, and pyrox, which are commonly proposed and observed intermediates in catalytic reactions. Through a comparison of relevant analogues, we have established an empirical rule governing the electronic structures of these nickel radical complexes. The N-ligands exhibit redox activity in four-coordinate, square-planar nickel radical complexes, leading to the observation of ligand-centered radicals. In contrast, these ligands do not display redox activity when supporting three-coordinate, trigonal planar nickel radical complexes, which are better described as nickel-centered radicals. This trend holds true irrespective of the nature of the actor ligands. These results provide insights into the beneficial effect of coordinating salt additives and solvents in stabilizing nickel radical intermediates during catalytic reactions by modulating the redox activity of the ligands. Understanding the electronic structures of these active intermediates can contribute to the development and optimization of nickel catalysts for cross-coupling reactions.
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Affiliation(s)
- Gregory
A. Dawson
- Department
of Chemistry, New York University, 100 Washington Square East, New York, New York 10003, United States
| | - Qiao Lin
- Department
of Chemistry, New York University, 100 Washington Square East, New York, New York 10003, United States
| | - Michelle C. Neary
- Department
of Chemistry, CUNY − Hunter College, 695 Park Avenue, New York, New York 10065, United States
| | - Tianning Diao
- Department
of Chemistry, New York University, 100 Washington Square East, New York, New York 10003, United States
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21
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Yang P, Xu B, Zhu R, Zhang T, Wang Z, Lin Q, Yan M, Yu Z, Mao H, Zhang Y. ROS-mediated mitophagy and necroptosis regulate osteocytes death caused by TCP particles in MLO-Y4 cells. Toxicology 2023; 496:153627. [PMID: 37678662 DOI: 10.1016/j.tox.2023.153627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Revised: 08/30/2023] [Accepted: 09/03/2023] [Indexed: 09/09/2023]
Abstract
Our previous data have revealed TCP particles caused cell death of osteocytes, comprising over 95 % of all bone cells, which contribute to periprosthetic osteolysis, joint loosening and implant failure, but its mechanisms are not fully understood. Here, we reported that TCP particles inhibited cell viability of osteocytes MLO-Y4, and caused cell death. TCP particles caused mitochondrial impairment and increased expressions of LC-3 II, Parkin and PINK 1, accompanied by the elevation of autophagy flux and intracellular acidic components, the accumulation of LC-3II, PINK1 and Parkin in damaged mitochondria, and p62 reduction. The increased LC-3II expression and cell death extent were significantly enhanced by the autophagy inhibitor Baf A1, compared with Baf A1 (or TCP particles) alone, indicating that TCP particles increase autophagic flux and lead to cell even death of MLO-Y4 cells, closely associated with mitophagy. Furthermore, TCP particles induced propidium iodide (PI) uptake and the phosphorylation of RIP1, RIP3 and MLKL, thereby increasing necroptosis in MLO-Y4 cells. The pro-necroptotic effect was alleviated by the RIP1 inhibitor Nec-1 or the MLKL inhibitor NSA. Additionally, TCP particles promoted the production of intracellular reactive oxygen species (ROS) and mitochondrial ROS (mtROS), and increased TXNIP expression, but decreased protein levels of TRX1, Nrf2, HO-1 and NQO1, leading to oxidative stress. The ROS scavenger NAC remarkably reversed mitophagy and necroptosis caused by TCP particles, suggesting that ROS is responsible for mitophagy and necroptosis. Collectively, ROS-mediated mitophagy and necroptosis regulate osteocytes death caused by TCP particles in MLO-Y4 cells, which enhances osteoclastogenesis and periprosthetic osteolysis.
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Affiliation(s)
- Pei Yang
- College of Medicine, Shaoxing University, Huancheng West Road 508, Shaoxing 312000, PR China
| | - Bingbing Xu
- College of Medicine, Shaoxing University, Huancheng West Road 508, Shaoxing 312000, PR China
| | - Ruirong Zhu
- College of Medicine, Shaoxing University, Huancheng West Road 508, Shaoxing 312000, PR China
| | - Tao Zhang
- College of Medicine, Shaoxing University, Huancheng West Road 508, Shaoxing 312000, PR China
| | - Zihan Wang
- College of Medicine, Shaoxing University, Huancheng West Road 508, Shaoxing 312000, PR China
| | - Qiao Lin
- College of Medicine, Shaoxing University, Huancheng West Road 508, Shaoxing 312000, PR China
| | - Ming Yan
- School of Automation, Hangzhou Dianzi University, Xiasha Higher Education Zone, 1158 2nd Avenue, Hangzhou 310018, PR China
| | - Zhangsen Yu
- College of Medicine, Shaoxing University, Huancheng West Road 508, Shaoxing 312000, PR China
| | - Hongjiao Mao
- College of Medicine, Shaoxing University, Huancheng West Road 508, Shaoxing 312000, PR China
| | - Yun Zhang
- College of Medicine, Shaoxing University, Huancheng West Road 508, Shaoxing 312000, PR China.
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Zhang S, Zhou X, Ou M, Fu X, Lin Q, Tao X, Wang Z, Liu A, Li G, Xu Y, Zhang G. Berbamine promotes macrophage autophagy to clear Mycobacterium tuberculosis by regulating the ROS/Ca 2+ axis. mBio 2023; 14:e0027223. [PMID: 37382506 PMCID: PMC10470588 DOI: 10.1128/mbio.00272-23] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Accepted: 05/09/2023] [Indexed: 06/30/2023] Open
Abstract
Drug-resistant tuberculosis (TB) poses a major threat to global TB control; consequently, there is an urgent need to develop novel anti-TB drugs or strategies. Host-directed therapy (HDT) is emerging as an effective treatment strategy, especially for drug-resistant TB. This study evaluated the effects of berbamine (BBM), a bisbenzylisoquinoline alkaloid, on mycobacterial growth in macrophages. BBM inhibited intracellular Mycobacterium tuberculosis (Mtb) growth by promoting autophagy and silencing ATG5, partially abolishing the inhibitory effect. In addition, BBM increased intracellular reactive oxygen species (ROS), while the antioxidant N-acetyl-L-cysteine (NAC) abolished BBM-induced autophagy and the ability to inhibit Mtb survival. Furthermore, the increased intracellular Ca2+ concentration induced by BBM was regulated by ROS, and BAPTA-AM, an intracellular Ca2+-chelating agent, could block ROS-mediated autophagy and Mtb clearance. Finally, BBM could inhibit the survival of drug-resistant Mtb. Collectively, these findings provide evidence that BBM, a Food and Drug Administration (FDA)-approved drug, could effectively clear drug-sensitive and -resistant Mtb through regulating ROS/Ca2+ axis-mediated autophagy and has potential as an HDT candidate for TB therapy. IMPORTANCE It is urgent to develop novel treatment strategies against drug-resistant TB, and HDT provides a promising approach to fight drug-resistant TB by repurposing old drugs. Our studies demonstrate, for the first time, that BBM, an FDA-approved drug, not only potently inhibits intracellular drug-sensitive Mtb growth but also restricts drug-resistant Mtb by promoting macrophage autophagy. Mechanistically, BBM activates macrophage autophagy by regulating the ROS/Ca2+ axis. In conclusion, BBM could be considered as an HDT candidate and may contribute to improving the outcomes or shortening the treatment course of drug-resistant TB.
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Affiliation(s)
- Su Zhang
- National Clinical Research Center for Infectious Diseases, Guangdong Provincial Clinical Research Center for Tuberculosis, Shenzhen Third People’s Hospital, Southern University of Science and Technology, Shenzhen, China
| | | | - Min Ou
- National Clinical Research Center for Infectious Diseases, Guangdong Provincial Clinical Research Center for Tuberculosis, Shenzhen Third People’s Hospital, Southern University of Science and Technology, Shenzhen, China
| | - Xiangdong Fu
- National Clinical Research Center for Infectious Diseases, Guangdong Provincial Clinical Research Center for Tuberculosis, Shenzhen Third People’s Hospital, Southern University of Science and Technology, Shenzhen, China
| | - Qiao Lin
- Department of Clinical Laboratory, The Baoan People’s Hospital of Shenzhen, The Second Affiliated Hospital of Shenzhen University, Shenzhen, China
| | - Xiaoyu Tao
- National Clinical Research Center for Infectious Diseases, Guangdong Provincial Clinical Research Center for Tuberculosis, Shenzhen Third People’s Hospital, Southern University of Science and Technology, Shenzhen, China
| | - Zhaoqin Wang
- National Clinical Research Center for Infectious Diseases, Guangdong Provincial Clinical Research Center for Tuberculosis, Shenzhen Third People’s Hospital, Southern University of Science and Technology, Shenzhen, China
| | - Aimei Liu
- Department of Tuberculosis, Guangxi Chest Hospital, Liuzhou, China
| | - Guobao Li
- National Clinical Research Center for Infectious Diseases, Guangdong Provincial Clinical Research Center for Tuberculosis, Shenzhen Third People’s Hospital, Southern University of Science and Technology, Shenzhen, China
| | - Yuzhong Xu
- Department of Clinical Laboratory, The Baoan People’s Hospital of Shenzhen, The Second Affiliated Hospital of Shenzhen University, Shenzhen, China
| | - Guoliang Zhang
- National Clinical Research Center for Infectious Diseases, Guangdong Provincial Clinical Research Center for Tuberculosis, Shenzhen Third People’s Hospital, Southern University of Science and Technology, Shenzhen, China
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Tian X, Liu X, Xiao Z, Lin Q. Undergraduates' Negative Emotion and Academic Procrastination During COVID-19: Life Autonomy as a Mediator and Sense of School Belonging as a Moderator. Psychol Res Behav Manag 2023; 16:3151-3169. [PMID: 37584038 PMCID: PMC10424688 DOI: 10.2147/prbm.s413738] [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: 04/14/2023] [Accepted: 07/30/2023] [Indexed: 08/17/2023] Open
Abstract
Introduction This study aims to investigate the impact of COVID-19 on undergraduate students' academic procrastination and negative emotions. It seeks to examine the relationship between negative affect and academic procrastination among university students, considering the mediating role of life autonomy and the moderating effect of a sense of school belonging. Methods The study sample consisted of 776 university students from the Guangxi Zhuang Autonomous Region, China. Data collection involved the use of the Negative Affect Scale, Academic Procrastination Scale, Life Autonomy Scale, and Sense of School Belonging Scale. SPSS version 26.0 and PROCESS V3.580 to conduct relationship analysis, test the mediation model (model 4) and the moderated mediating model (model 7). Results The findings revealed significant relationships among the variables. Negative emotions were negatively related with life autonomy and sense of school belonging, and positively related with academic procrastination. Academic procrastination showed a negative correlation with both life autonomy and sense of school belonging. Sense of school belonging exhibited a positive relationship with life autonomy. The study also identified life autonomy as a mediator in the relationship between negative emotions and academic procrastination. Additionally, the sense of school belonging moderated the initial segment of the negative emotion-life autonomy-academic procrastination pathway. Discussion This study contributes to a better understanding of the association between negative affect and academic procrastination. It highlights that negative emotions have a direct and indirect influence on academic procrastination through the mediating role of life autonomy. Moreover, the moderating role of sense of school belonging suggests that the relationship between negative affect and life autonomy is stronger when the sense of school belonging is weaker.
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Affiliation(s)
- Xianpeng Tian
- Department of Education, Jiangnan University, Wuxi, Jiangsu, People’s Republic of China
| | - Xiangwei Liu
- School of Distance Education, Universiti Sains Malaysia, Gelugor, Penang, Malaysia
| | - Zhiqi Xiao
- Department of Education, Jiangnan University, Wuxi, Jiangsu, People’s Republic of China
| | - Qiao Lin
- Department of Education, Jiangnan University, Wuxi, Jiangsu, People’s Republic of China
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Zhou N, Kong D, Lin Q, Yang X, Zhou D, Lou L, Huang F. Unfolded protein response signature unveils novel insights into breast cancer prognosis and tumor microenvironment. Cancer Genet 2023; 276-277:17-29. [PMID: 37343507 DOI: 10.1016/j.cancergen.2023.06.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 05/24/2023] [Accepted: 06/13/2023] [Indexed: 06/23/2023]
Abstract
BACKGROUND The critical role of the unfolded protein response (UPR) in tumorigenesis is widely acknowledged, yet the precise molecular mechanisms underlying its contribution to breast cancer (BC) have not been fully elucidated. The present study aimed to comprehensively explore the expression characteristics and prognostic significance of UPR-related genes in breast cancer METHODS: The transcriptome and clinical data of breast cancer were acquired from The Cancer Genome Atlas (TCGA) and Gene Expression Omnibus (GEO) databases, respectively. Differential expression analysis was conducted on UPR-related genes, and the resulting genes were employed for consensus clustering analysis. A breast cancer prognosis risk model was constructed using univariate, least absolute shrinkage and selection operator (LASSO), and multivariable Cox regression analyses. Difference in survival outcomes between groups were analyzed Kaplan-Meier survival analysis, and receiver operating characteristic (ROC) curve was used to assess predictive performance. The relationship between the risk model and clinical-pathological characteristics, immune infiltration, immunotherapy response, and drug sensitivity was assessed. RESULTS Differential expression analysis identified 10 UPR-related genes that were differentially expressed in breast cancer. Using the expression matrix of these genes, two molecular subtypes of breast cancer were characterized, which displayed significant differences in prognostic and immune infiltration characteristics. Drawing from the gene expression profiles that distinguish between the molecular subtypes, a prognostic risk scoring model comprising eight genes was developed. This model stratified BC patients from both the training and validation cohorts into high-risk and low-risk groups. Patients in the low-risk group had better prognoses, while those with advanced clinical stage and T stage exhibited higher risk scores. The high- and low-risk groups exhibited notable disparities in immune cell infiltration and the expression of multiple immune checkpoint-related genes. Additionally, the low-risk group demonstrated elevated immunophenoscore, Merck18, CD274, and CAF scores compared to the high-risk group, along with a lesser sensitivity to chemotherapy drugs. These results suggest that patients within the low-risk group may potentially benefit more from immunotherapy and chemotherapy interventions. CONCLUSIONS This study developed a novel UPR-derived risk signature, which could robustly predict the survival outcome, immune microenvironment, and chemotherapy response of patients with breast cancer.
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Affiliation(s)
- Nanyang Zhou
- Department of Traditional Chinese Medicine, Hangzhou Women's Hospital, Hangzhou 310008, Zhejiang, China
| | - Dejia Kong
- Department of Traditional Chinese Medicine, Hangzhou Women's Hospital, Hangzhou 310008, Zhejiang, China
| | - Qiao Lin
- Department of Traditional Chinese Medicine, Hangzhou Women's Hospital, Hangzhou 310008, Zhejiang, China
| | - Xiaojing Yang
- Department of Traditional Chinese Medicine, Hangzhou Women's Hospital, Hangzhou 310008, Zhejiang, China
| | - Dan Zhou
- Department of Traditional Chinese Medicine, Hangzhou Women's Hospital, Hangzhou 310008, Zhejiang, China
| | - Lihua Lou
- Department of Traditional Chinese Medicine, Hangzhou Women's Hospital, Hangzhou 310008, Zhejiang, China
| | - Feixiang Huang
- Department of Traditional Chinese Medicine, Hangzhou Women's Hospital, Hangzhou 310008, Zhejiang, China.
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Park YS, Lin Q, Xing K. Evaluating Modes of Observations Using Hierarchical Signal Detection Rater Models. Multivariate Behav Res 2023; 58:843-858. [PMID: 36502400 DOI: 10.1080/00273171.2022.2138253] [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] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Scoring of performance can be based on different modes of observation, which can include live and videotaped observations. Although live observations have been the traditional format of measuring examinee performance in education and in healthcare, videotaped observations provide educators and testing agencies the promise of unbiased and standardized evaluations, offering practical solutions to limitations of real-time scoring. This study proposes a measurement model taking into account different modes of observation, using an extension of the hierarchical rater model based on signal detection theory (HRM-SDT). A hierarchical rater model is motivated by the nested structure of scores assigned by raters - scores assigned by raters become indicators of performance quality, which in turn become indicators of examinee ability. This study extends the hierarchical structure of the scoring process to include modes of observation, which serves as an intermediary level between the latent categorical indicator of performance quality and examinee ability, forming a three-level HRM-SDT. Analyses based on real-world data showed differences in the quality of scores from live observations and videotaped recordings. Compared to the traditional HRM-SDT, the overall model fit improved when including modes of observation. Simulations using different sample sizes and conditions provide implications for uses of this model.
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Affiliation(s)
| | - Qiao Lin
- University of Illinois at Chicago
| | - Kuan Xing
- University of Tennessee Health Science Center
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Lin Q, Deng P, Feng T, Ou G, Mou L, Zhang Y. Enantioselectivity of indoxacarb enantiomers in Bombyx mori larvae: toxicity, bioaccumulation and biotransformation. Pest Manag Sci 2023; 79:2353-2364. [PMID: 36797221 DOI: 10.1002/ps.7412] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Revised: 01/08/2023] [Accepted: 02/16/2023] [Indexed: 06/02/2023]
Abstract
BACKGROUND Indoxacarb is a chiral insecticide with excellent insecticidal activity against lepidopterous insects. Because of their enantioselectivity, chiral pesticides' environmental behavior at the enantiomeric level has been highlighted. The chiral stability, enantioselective bioaccumulation, biotransformation behavior of indoxacarb to a non-target insect silkworm are still unclear. RESULTS A chiral analysis method for indoxacarb and its metabolite DCJW in silkworm was developed using liquid chromatography and high-resolution mass spectrometry (HPLC/HRMS). In silkworms, the recoveries of indoxacarb and DCJW were 86.06%-104.52% with relative standard deviation (RSD) < 9.01%. The 96-h lethal concentration (LC50 ) values of R-indoxacarb, S-indoxacarb, and enriched S-indoxacarb (2.333 S/1R) were 1.08 × 102 , 1.92, and 6.89 mg a.i. L-1 , respectively, according to the acute toxicity test results. When silkworm larvae were exposed to 1/50 of the LC50 concentration, the bioconcentration factor (BCF) of R-indoxacarb was 0.0296-0.318, and the BCF of S-indoxacarb was 0.0125-0.211. In silkworm larvae, the amount of R-DCJW produced by R-indoxacarb was 0.00610 to 2.34 times that of the parent R-indoxacarb, and the amount of S-DCJW produced by S-indoxacarb was 0.125-36.9 times that of the parent S-indoxacarb. CONCLUSION There was no chiral transition from S-indoxacarb to R-indoxacarb or a transformation from R-indoxacarb to S-indoxacarb. Indoxacarb was preferentially bioaccumulated in silkworm larva, while S-indoxacarb bioconversion into the metabolite S-DCJW was much greater than R-indoxacarb bioconversion into R-DCJW. This study could improve understanding of the indoxacarb accumulation and transformation process in insects, as well as provide more scientific data for indoxacarb environmental and ecological risk assessment. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Qiao Lin
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, China
| | - Pengyu Deng
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, China
| | - Tianyou Feng
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, China
| | - Guipeng Ou
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, China
| | - Lianhong Mou
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, China
| | - Yuping Zhang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, China
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Han Z, Li Y, Wang X, Li C, Li C, Lin Q, Xu E, Tang J, Lai M, Ma Y, Gu Y. In Vivo Staging the Progression of Colitis and Associated Cancer by Concurrent Microimaging of Key Biomarkers. Anal Chem 2023. [PMID: 37366081 DOI: 10.1021/acs.analchem.3c00907] [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: 06/28/2023]
Abstract
Currently colorectal cancer (CRC) staging (colitis, adenoma, and carcinoma) mainly relies on ex vivo pathologic analysis requiring an invasive surgical process with limited sample collection and increased metastatic risk. Thus, in vivo noninvasive pathological diagnosis is extremely demanded. By verifying the samples of clinical patients and CRC mouse models, it was found that vascular endothelial growth factor receptor 2 (VEGFR2) was barely expressed in the colitis stage and only appeared in adenoma and carcinoma stages with obvious elevation, while prostaglandin E receptor 4 (PTGER4) could be observed from colitis to adenoma and carcinoma stages with a gradient increase of expression. VEGFR2 and PTGER4 were further chosen as key biomarkers for molecular pathological diagnosis in vivo and corresponding molecular probes were constructed. The feasibility of in vivo noninvasive CRC staging by concurrent microimaging of dual biomarkers using confocal laser endoscopy (CLE) was verified in CRC mouse models and further confirmed by ex vivo pathological analysis. In vivo CLE imaging exhibited the correlation of severe colonic crypt structural alteration with a higher biomarker expression in adenoma and carcinoma stages. This strategy shows promise in benefiting patients undergoing CRC progression with in-time, noninvasive, and precise pathological staging, thus providing valuable guidance for selecting therapeutic strategies.
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Affiliation(s)
- Zhihao Han
- State Key Laboratory of Natural Medicine, Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 211198, China
| | - Yi Li
- State Key Laboratory of Natural Medicine, Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 211198, China
| | - Xin Wang
- State Key Laboratory of Natural Medicine, Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 211198, China
| | - Chang Li
- State Key Laboratory of Natural Medicine, Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 211198, China
| | - Changsheng Li
- State Key Laboratory of Natural Medicine, Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 211198, China
| | - Qiao Lin
- State Key Laboratory of Natural Medicine, Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 211198, China
| | - Enping Xu
- Department of Pathology, Key Laboratory of Disease Proteomics of Zhejiang Province, School of Medicine, Zhejiang University, Hangzhou 310058, China
| | - Jinlong Tang
- Department of Pathology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310014, China
| | - Maode Lai
- Department of Pathology, Key Laboratory of Disease Proteomics of Zhejiang Province, School of Medicine, Zhejiang University, Hangzhou 310058, China
- Department of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Yi Ma
- State Key Laboratory of Natural Medicine, Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 211198, China
| | - Yueqing Gu
- State Key Laboratory of Natural Medicine, Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 211198, China
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28
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Jakkampudi T, Lin Q, Mitra S, Vijai A, Qin W, Kang A, Chen J, Ryan E, Wang R, Gong Y, Heinrich F, Song J, Di YP(P, Tristram-Nagle S. Lung SPLUNC1 Peptide Derivatives in the Lipid Membrane Headgroup Kill Gram-Negative Planktonic and Biofilm Bacteria. Biomacromolecules 2023; 24:2804-2815. [PMID: 37223955 PMCID: PMC10265666 DOI: 10.1021/acs.biomac.3c00218] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 05/03/2023] [Indexed: 05/25/2023]
Abstract
SPLUNC1 (short palate lung and nasal epithelial clone 1) is a multifunctional host defense protein found in human respiratory tract with antimicrobial properties. In this work, we compare the biological activities of four SPLUNC1 antimicrobial peptide (AMP) derivatives using paired clinical isolates of the Gram-negative (G(-)) bacteria Klebsiella pneumoniae, obtained from 11 patients with/without colistin resistance. Secondary structural studies were carried out to study interactions between the AMPs and lipid model membranes (LMMs) utilizing circular dichroism (CD). Two peptides were further characterized using X-ray diffuse scattering (XDS) and neutron reflectivity (NR). A4-153 displayed superior antibacterial activity in both G(-) planktonic cultures and biofilms. NR and XDS revealed that A4-153 (highest activity) is located primarily in membrane headgroups, while A4-198 (lowest activity) is located in hydrophobic interior. CD revealed that A4-153 is helical, while A4-198 has little helical character, demonstrating that helicity and efficacy are correlated in these SPLUNC1 AMPs.
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Affiliation(s)
- Tanvi Jakkampudi
- Biological
Physics, Physics Department, Carnegie Mellon
University, 5000 Forbes Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Qiao Lin
- Department
of Environmental and Occupational Health, University of Pittsburgh, 130 DeSoto Street, Pittsburgh, Pennsylvania 15261, United States
| | - Saheli Mitra
- Biological
Physics, Physics Department, Carnegie Mellon
University, 5000 Forbes Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Aishwarya Vijai
- Biological
Physics, Physics Department, Carnegie Mellon
University, 5000 Forbes Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Weiheng Qin
- Biological
Physics, Physics Department, Carnegie Mellon
University, 5000 Forbes Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Ann Kang
- Biological
Physics, Physics Department, Carnegie Mellon
University, 5000 Forbes Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Jespar Chen
- Biological
Physics, Physics Department, Carnegie Mellon
University, 5000 Forbes Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Emma Ryan
- Biological
Physics, Physics Department, Carnegie Mellon
University, 5000 Forbes Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Runxuan Wang
- Biological
Physics, Physics Department, Carnegie Mellon
University, 5000 Forbes Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Yuqi Gong
- Biological
Physics, Physics Department, Carnegie Mellon
University, 5000 Forbes Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Frank Heinrich
- NIST
Center for Neutron Research, National Institute
of Standards and Technology, 100 Bureau Drive, Gaithersburg, Maryland 20899, United States
| | - Junming Song
- Department
of Environmental and Occupational Health, University of Pittsburgh, 130 DeSoto Street, Pittsburgh, Pennsylvania 15261, United States
| | - Yuan-Pu (Peter) Di
- Department
of Environmental and Occupational Health, University of Pittsburgh, 130 DeSoto Street, Pittsburgh, Pennsylvania 15261, United States
| | - Stephanie Tristram-Nagle
- Biological
Physics, Physics Department, Carnegie Mellon
University, 5000 Forbes Avenue, Pittsburgh, Pennsylvania 15213, United States
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29
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Che X, Wang J, Sun W, He J, Wang Q, Zhu D, Zhu W, Zhang J, Dong J, Xu J, Zheng F, Zhou J, Zhao W, Lin Q, Ye L, Zhao X, Xu Z, Chen Y, Wang J, Wu W, Zhai L, Zhou Y, Zheng J, Zhang X. Effect of Mifepristone vs Placebo for Treatment of Adenomyosis With Pain Symptoms: A Randomized Clinical Trial. JAMA Netw Open 2023; 6:e2317860. [PMID: 37307001 PMCID: PMC10261993 DOI: 10.1001/jamanetworkopen.2023.17860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Accepted: 04/25/2023] [Indexed: 06/13/2023] Open
Abstract
Importance Adenomyosis is a common chronic gynecological disorder, and its treatment is an unmet need. New therapies need to be developed. Mifepristone is being tested for adenomyosis treatment. Objective To determine whether mifepristone is effective and safe for adenomyosis treatment. Design, Setting, and Participants This multicenter, placebo-controlled, double-blind randomized clinical trial was conducted in 10 hospitals in China. In total, 134 patients with adenomyosis pain symptoms were enrolled. Trial enrollment began in May 2018 and was completed in April 2019, and analyses were conducted from October 2019 to February 2020. Interventions Participants were randomized 1:1 to receive mifepristone 10 mg or placebo orally once a day for 12 weeks. Main Outcomes and Measures The primary end point was the change in adenomyosis-associated dysmenorrhea intensity, evaluated by the visual analog scale (VAS) after 12 weeks of treatment. Secondary end points included the change in menstrual blood loss, increased level of hemoglobin in patients with anemia, CA125 level, platelet count, and uterine volume after 12 weeks of treatment. Safety was assessed according to adverse events, vital signs, gynecological examinations, and laboratory evaluations. Results In total, 134 patients with adenomyosis and dysmenorrhea were randomly assigned, and 126 patients were included in the efficacy analysis, including 61 patients (mean [SD] age, 40.2 [4.6] years) randomized to receive mifepristone and 65 patients (mean [SD] age, 41.7 [5.0] years) randomized to received the placebo. The characteristics of the included patients at baseline were similar between groups. The mean (SD) change in VAS score was -6.63 (1.92) in the mifepristone group and -0.95 (1.75) in the placebo group (P < .001). The total remission rates for dysmenorrhea in the mifepristone group were significantly better than those in the placebo group (effective remission: 56 patients [91.8%] vs 15 patients [23.1%]; complete remission: 54 patients [88.5%] vs 4 patients [6.2%]). All the secondary end points showed significant improvements after mifepristone treatment for menstrual blood loss, hemoglobin (mean [SD] change from baseline: 2.13 [1.38] g/dL vs 0.48 [0.97] g/dL; P < .001), CA125 (mean [SD] change from baseline: -62.23 [76.99] U/mL vs 26.89 [118.70] U/mL; P < .001), platelet count (mean [SD] change from baseline: -28.87 [54.30]×103/µL vs 2.06 [41.78]×103/µL; P < .001), and uterine volume (mean [SD] change from baseline: -29.32 [39.34] cm3 vs 18.39 [66.46] cm3; P < .001). Safety analysis revealed no significant difference between groups, and no serious adverse events were reported. Conclusions and Relevance This randomized clinical trial showed that mifepristone could be a new option for treating patients with adenomyosis, based on its efficacy and acceptable tolerability. Trial Registration ClinicalTrials.gov Identifier: NCT03520439.
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Affiliation(s)
- Xuan Che
- Women’s Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- Jiaxing University Affiliated Women and Children Hospital, Jiaxing, China
| | - Jianzhang Wang
- Women’s Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Wenting Sun
- Women’s Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Jiayi He
- Women’s Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Qiming Wang
- Ningbo Women and Children’s Hospital, Ningbo, China
| | - Danyang Zhu
- The First People’s Hospital of Taizhou City, Taizhou, China
| | - Weili Zhu
- Jiaxing University Affiliated Women and Children Hospital, Jiaxing, China
| | - Jing Zhang
- The Affiliated Hospital of Medical School of Ningbo University, Ningbo, China
| | - Jie Dong
- Huzhou Maternity & Child Health Care Hospital, Huzhou, China
| | - Jingui Xu
- Quzhou People’s Hospital, Quzhou, China
| | - Feiyun Zheng
- The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Jianwei Zhou
- The Second Affiliated Hospital of Zhejiang University School of Medicine, Hanzhou, China
| | | | - Qiao Lin
- Taizhou Cancer Hospital, Taizhou, China
| | - Lingfang Ye
- Ningbo Women and Children’s Hospital, Ningbo, China
| | - Xiumin Zhao
- The First People’s Hospital of Taizhou City, Taizhou, China
| | - Zhengfen Xu
- Jiaxing University Affiliated Women and Children Hospital, Jiaxing, China
| | - Yunyan Chen
- Huzhou Maternity & Child Health Care Hospital, Huzhou, China
| | - Jing Wang
- Quzhou People’s Hospital, Quzhou, China
| | - Wenlie Wu
- The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Lingyun Zhai
- The Second Affiliated Hospital of Zhejiang University School of Medicine, Hanzhou, China
| | | | | | - Xinmei Zhang
- Women’s Hospital, School of Medicine, Zhejiang University, Hangzhou, China
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30
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Ray KK, Kinz-Thompson CD, Fei J, Wang B, Lin Q, Gonzalez RL. Entropic control of the free-energy landscape of an archetypal biomolecular machine. Proc Natl Acad Sci U S A 2023; 120:e2220591120. [PMID: 37186858 PMCID: PMC10214133 DOI: 10.1073/pnas.2220591120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Accepted: 04/17/2023] [Indexed: 05/17/2023] Open
Abstract
Biomolecular machines are complex macromolecular assemblies that utilize thermal and chemical energy to perform essential, multistep, cellular processes. Despite possessing different architectures and functions, an essential feature of the mechanisms of action of all such machines is that they require dynamic rearrangements of structural components. Surprisingly, biomolecular machines generally possess only a limited set of such motions, suggesting that these dynamics must be repurposed to drive different mechanistic steps. Although ligands that interact with these machines are known to drive such repurposing, the physical and structural mechanisms through which ligands achieve this remain unknown. Using temperature-dependent, single-molecule measurements analyzed with a time-resolution-enhancing algorithm, here, we dissect the free-energy landscape of an archetypal biomolecular machine, the bacterial ribosome, to reveal how its dynamics are repurposed to drive distinct steps during ribosome-catalyzed protein synthesis. Specifically, we show that the free-energy landscape of the ribosome encompasses a network of allosterically coupled structural elements that coordinates the motions of these elements. Moreover, we reveal that ribosomal ligands which participate in disparate steps of the protein synthesis pathway repurpose this network by differentially modulating the structural flexibility of the ribosomal complex (i.e., the entropic component of the free-energy landscape). We propose that such ligand-dependent entropic control of free-energy landscapes has evolved as a general strategy through which ligands may regulate the functions of all biomolecular machines. Such entropic control is therefore an important driver in the evolution of naturally occurring biomolecular machines and a critical consideration for the design of synthetic molecular machines.
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Affiliation(s)
- Korak Kumar Ray
- Department of Chemistry, Columbia University, New York, NY10027
| | | | - Jingyi Fei
- Department of Chemistry, Columbia University, New York, NY10027
| | - Bin Wang
- Department of Mechanical Engineering, Columbia University, New York, NY10027
| | - Qiao Lin
- Department of Mechanical Engineering, Columbia University, New York, NY10027
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31
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Lin Q, Meng C, Liu J, Liu F, Zhou Q, Liu J, Peng C, Xiong L. An Optimized Two-Dimensional Quantitative Nuclear Magnetic Resonance Strategy for the Rapid Quantitation of Diester-Type C 19-Diterpenoid Alkaloids from Aconitum carmichaelii. Anal Chem 2023. [PMID: 37209123 DOI: 10.1021/acs.analchem.2c05109] [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: 05/22/2023]
Abstract
With the development of nuclear magnetic resonance (NMR) spectrometers and probes, two-dimensional quantitative nuclear magnetic resonance (2D qNMR) technology with a high signal resolution and great application potential has become increasingly accessible for the quantitation of complex mixtures. However, the requirement that the relaxation recovery time be equal to at least five times T1 (longitudinal relaxation time) makes it difficult for 2D qNMR to simultaneously achieve high quantitative accuracy and high data acquisition efficiency. By comprehensively using relaxation optimization and nonuniform sampling, we successfully established an optimized 2D qNMR strategy for HSQC experiments at the half-hour level and then accurately quantified the diester-type C19-diterpenoid alkaloids in Aconitum carmichaelii. The optimized strategy had the advantages of high efficiency, high accuracy, good reproducibility, and low cost and thus could serve as a reference to optimize 2D qNMR experiments for quantitative analysis of natural products, metabolites, and other complex mixtures.
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Affiliation(s)
- Qiao Lin
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
- Institute of Innovative Medicine Ingredients of Southwest Specialty Medicinal Materials, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Chunwang Meng
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
- Institute of Innovative Medicine Ingredients of Southwest Specialty Medicinal Materials, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Jie Liu
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
- Institute of Innovative Medicine Ingredients of Southwest Specialty Medicinal Materials, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Fei Liu
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
- Institute of Innovative Medicine Ingredients of Southwest Specialty Medicinal Materials, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Qinmei Zhou
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
- Institute of Innovative Medicine Ingredients of Southwest Specialty Medicinal Materials, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
- Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Juan Liu
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
- Institute of Innovative Medicine Ingredients of Southwest Specialty Medicinal Materials, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Cheng Peng
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Liang Xiong
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
- Institute of Innovative Medicine Ingredients of Southwest Specialty Medicinal Materials, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
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32
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Xiong Q, Brudzinski MR, Gossett D, Lin Q, Hampton JC. Seismic magnitude clustering is prevalent in field and laboratory catalogs. Nat Commun 2023; 14:2056. [PMID: 37045820 PMCID: PMC10097663 DOI: 10.1038/s41467-023-37782-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Accepted: 03/24/2023] [Indexed: 04/14/2023] Open
Abstract
Clustering of earthquake magnitudes is still actively debated, compared to well-established spatial and temporal clustering. Magnitude clustering is not currently implemented in earthquake forecasting but would be important if larger magnitude events are more likely to be followed by similar sized events. Here we show statistically significant magnitude clustering present in many different field and laboratory catalogs at a wide range of spatial scales (mm to 1000 km). It is universal in field catalogs across fault types and tectonic/induced settings, while laboratory results are unaffected by loading protocol or rock types and show temporal stability. The absence of clustering can be imposed by a global tensile stress, although clustering still occurs when isolating to triggered event pairs or spatial patches where shear stress dominates. Magnitude clustering is most prominent at short time and distance scales and modeling indicates >20% repeating magnitudes in some cases, implying it can help to narrow physical mechanisms for seismogenesis.
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Affiliation(s)
- Q Xiong
- Geomechanics and Damage Group (GeoD), Department of Civil and Environmental Engineering, University of Wisconsin-Madison, Madison, WI, USA
| | - M R Brudzinski
- Department of Geology and Environmental Earth Science, Miami University, Oxford, OH, USA
| | - D Gossett
- Department of Geology and Environmental Earth Science, Miami University, Oxford, OH, USA
| | - Q Lin
- State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, 102249, Beijing, China
- College of Petroleum Engineering, China University of Petroleum, Beijing, China
| | - J C Hampton
- Geomechanics and Damage Group (GeoD), Department of Civil and Environmental Engineering, University of Wisconsin-Madison, Madison, WI, USA.
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Shan W, Niu W, Lin Q, Shen Y, Shen F, Lou K, Zhang Y. Bisphenol S exposure promotes cell apoptosis and mitophagy in murine osteocytes by regulating mtROS signaling. Microsc Res Tech 2023; 86:481-493. [PMID: 36625337 DOI: 10.1002/jemt.24289] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 11/29/2022] [Accepted: 12/31/2022] [Indexed: 01/11/2023]
Abstract
Bisphenol S (BPS), a safer alternative to bisphenol A, is commonly used as a plasticizer to manufacture various food-packaging materials. The accumulated BPS inhibits osteoblastic bone formation and promotes osteoclastogenesis, thereby accelerating remarkable bone destruction, but it is unclear whether BPS affects osteocytes, comprising over 95% of all bone cells. This study aimed to investigate the biological effect of BPS on osteocytes in vitro, as well as the detailed mechanism. Results showed that BPS (200, 400 μmol/L) exposure caused dose-dependently cell death of osteocytes MLO-Y4, and increased cell apoptosis. BPS induced loss of mitochondrial membrane potential (MMP) and mitochondria impairment. Furthermore, BPS upregulated expressions of mitophagy-related proteins including microtubule-associated protein light chain 3 (LC-3) II and PTEN-induced putative kinase (PINK) 1, accompanied by elevation of autophagy flux and the accumulation of acidic vacuoles; whereas p62 level was downregulated after BPS treatment. Additionally, BPS triggered the production of intracellular reactive oxygen species (ROS) and mitochondrial ROS (mtROS), while it decreased expression levels of nuclear factor E2-related factor 2 (Nrf2) and quinone oxidoreductase 1 (NQO1). The specific mtROS scavenger MitoTEMPO reversed cell apoptosis and mitophagy, suggesting that mtROS contributes to BPS exposure-induced apoptosis and mitophagy in MLO-Y4 cells. Our data first provide novel evidence that apoptosis and mitophagy as cellular mechanisms for the toxic effect of BPS on osteocytes, thereby helping our understanding of the potential role of osteocytes in the adverse effect of BPS and its analogs on bone growth, and supporting strategies targeting bone destruction caused by BPS.
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Affiliation(s)
- Weiyan Shan
- College of Medicine, Shaoxing University, Shaoxing, People's Republic of China
| | - Wanting Niu
- Department of Orthopedics, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Qiao Lin
- College of Medicine, Shaoxing University, Shaoxing, People's Republic of China
| | - Yuchen Shen
- College of Medicine, Shaoxing University, Shaoxing, People's Republic of China
| | - Fangmin Shen
- College of Medicine, Shaoxing University, Shaoxing, People's Republic of China
| | - Kai Lou
- College of Medicine, Shaoxing University, Shaoxing, People's Republic of China
| | - Yun Zhang
- College of Medicine, Shaoxing University, Shaoxing, People's Republic of China
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34
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Lin Q, Spielvogel EH, Diao T. Carbon-centered radical capture at nickel(II) complexes: Spectroscopic evidence, rates, and selectivity. Chem 2023. [DOI: 10.1016/j.chempr.2023.02.010] [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: 03/15/2023]
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35
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Meng X, Wen K, Citartan M, Lin Q. A comparative study of aptamer isolation by conventional and microfluidic strategies. Analyst 2023; 148:787-798. [PMID: 36688616 PMCID: PMC10143297 DOI: 10.1039/d2an01767a] [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: 12/24/2022]
Abstract
Aptamers are single-stranded oligonucleotide molecules that bind with high affinity and specificity to a wide range of target molecules. The method of systematic evolution of ligands by exponential enrichment (SELEX) plays an essential role in the isolation of aptamers from a randomized oligonucleotide library. To date, significant modifications and improvements of the SELEX process have been achieved, engendering various forms of SELEX from conventional SELEX to microfluidics-based full-chip SELEX. While full-chip SELEX is generally considered advantageous over conventional SELEX, there has not yet been a conclusive comparison between the methods. Herein, we present a comparative study of three SELEX strategies for aptamer isolation, including those using conventional agarose bead-based partitioning, microfluidic affinity selection, and fully integrated microfluidic affinity selection and PCR amplification. Using immunoglobulin E (IgE) as a model target molecule, we compare these strategies in terms of the time and cost for each step of the SELEX process including affinity selection, amplification, and oligonucleotide conditioning. Target-binding oligonucleotides in the enriched pools are sequenced and compared to assess the relative efficacy of the SELEX strategies. We show that the microfluidic strategies are more time- and cost-efficient than conventional SELEX.
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Affiliation(s)
- Xin Meng
- Department of Mechanical Engineering, Columbia University, New York, NY, 10027, USA.
| | - Kechun Wen
- Department of Mechanical Engineering, Columbia University, New York, NY, 10027, USA.
| | - Marimuthu Citartan
- Department of Mechanical Engineering, Columbia University, New York, NY, 10027, USA. .,Advanced Medical & Dental Institute (AMDI), Universiti Sains Malaysia, Bertam, 13200, Kepala Batas, Penang, Malaysia
| | - Qiao Lin
- Department of Mechanical Engineering, Columbia University, New York, NY, 10027, USA.
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Xue Q, Shen M, Lin Q, Wu X, Yang M. The Association between Dietary Protein Diversity and Protein Patterns with Frailty in Older Chinese Adults: A Population-Based Cohort Study. J Nutr Health Aging 2023; 27:1219-1227. [PMID: 38151873 DOI: 10.1007/s12603-023-2043-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Accepted: 10/24/2023] [Indexed: 12/29/2023]
Abstract
OBJECTIVES Frailty is a pervasive condition among older people worldwide. Despite the association between higher protein intake and lower frailty risk has been well documented, older individuals encounter barriers to enhancing their protein consumption due to reduced appetite and impaired digestive capacity. This study aims to delve into the potential correlation between dietary protein diversity, protein patterns, and the risk of frailty among older Chinese individuals. DESIGN Prospective cohort study. SETTING Community-based. PARTICIPANTS 2,216 participants aged 65 and above and not frail at the baseline were recruited from the Chinese Longitudinal Healthy Longevity Survey (CLHLS) dataset spanning from 2014 to 2018. MEASUREMENTS Dietary protein diversity was evaluated utilizing a protein diversity score (PDS), calculated based on the results of a food frequency questionnaire. Dietary protein patterns were identified by employing principal component analysis (PCA). Frailty was ascertained using a 40-item frailty index (FI) where FI > 0.21 indicated frailty. Logistic analysis was employed to investigate the association between dietary variables and frailty. RESULTS 541 participants were identified as frail after a 4-year follow-up. After adjusting for confounders, each 1-unit increase in PDS was linked to a 10% decrease in frailty risk. Compared to individuals with PDS ≤ 1, those with PDS scores of 2-3, 4-5, and 6 had lower risks of frailty, with OR (95% CI) of 0.78 (0.58-1.06), 0.58 (0.38-0.87), 0.42 (0.20-0.81), respectively (P trend = 0.038). Individuals who consistently maintained high PDS demonstrated a lower frailty risk in contrast to those who maintained low PDS (OR = 0.60, 95% CI, 0.41-0.87). Additionally, the "meat-fish" pattern exhibited a protective association with frailty, with OR Q4 versus Q1 (95% CI) of 0.54 (0.40-0.74), P trend < 0.001. CONCLUSION Maintaining a variety of dietary protein sources and following a "meat-fish" protein pattern might decrease the likelihood of frailty among the older Chinese population.
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Affiliation(s)
- Q Xue
- Min Yang, School of Public Health, and Center of Clinical Big Data and Analytics of The Second Affiliated Hospital, Zhejiang University School of Medicine 886 Yu-hang-tang RD, Hangzhou, China, Tel: 13516852440, E-mail:
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Wen K, Chen Y, Meng X, Botros S, Dai W, Stojanovic MN, Tomer R, Lin Q. A Microfluidic Dual-Aptamer Sandwich Assay for Rapid and Cost-Effective Detection of Recombinant Proteins. Microchem J 2023; 188. [PMID: 36992861 PMCID: PMC10041396 DOI: 10.1016/j.microc.2023.108454] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
While monitoring expression of recombinant proteins is essential for obtaining high-quality biopharmaceutical and biotechnological products, existing assays for recombinant protein detection are laborious, time-consuming and expensive. This paper presents a microfluidic approach to rapid and cost-effective detection of tag-fused recombinant proteins via a dual-aptamer sandwich assay. Our approach addresses limitations in current methods for both dual-aptamer assays and generation of aptamers for such assays by first using microfluidic technology to isolate the aptamers rapidly and then employing these aptamers to implement a microfluidic dual-aptamer assay for tag-fused recombinant protein detection. The use of microfluidic technology enables the fast generation of aptamers and rapid detection of recombinant proteins with minimized consumption of reagents. In addition, compared with antibodies, aptamers as low-cost affinity reagents with an ability of reversible denaturation further decreases the cost of recombinant protein detection. For demonstration, an aptamer pair is isolated rapidly toward His-tagged IgE within two days, and then used in the microfluidic dual-aptamer assay for detecting His-tagged IgE in cell culture media within 10 min and with a limit of detection of 7.1 nM.
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Olsen TR, Tapia-Alveal C, Wen K, Worgall TS, Stojanovic MN, Lin Q. Microfluidic isolation of aptamers with affinity towards multiple myeloma monoclonal immunoglobulins. Biomed Microdevices 2022; 25:3. [PMID: 36480127 DOI: 10.1007/s10544-022-00643-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/15/2022] [Indexed: 12/13/2022]
Abstract
Multiple myeloma (MM) is a bone marrow cancer of resident plasma cells that affects 125,000 patients in the U.S. with about 30,000 new cases per year. Its signature is the clonal proliferation of a single plasma cell that secretes a patient specific monoclonal immunoglobulin (M-Ig). Targeting the M-Ig in patient serum could allow sensitive and noninvasive identification of minimal residual disease in multiple myeloma. Aptamers, which are single-stranded oligonucleotides with affinity and specificity to a target molecule, have recently been introduced as affinity reagents for recognition of MM M-Igs. Here we exploit microfluidic SELEX technology to enable rapid and efficient generation of aptamers against M-Ig proteins from MM patients. We first characterize the technology by isolating aptamers with affinity towards the monoclonal antibody rituximab as a model M-Ig and then apply the technology to isolating aptamers specifically targeting M-Igs obtained from serum samples of MM patients. We demonstrate that high-affinity DNA aptamers (KD < 50 nM) for M-Ig proteins from a patient sample could be isolated via microfluidic SELEX within approximately 12 h and using less than 100 micrograms of patient M-Ig. Such aptamers can potentially be used in personalized monitoring of minimal residual disease in MM patients.
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Affiliation(s)
- Timothy R Olsen
- Department of Mechanical Engineering, Columbia University, 10027, New York, NY, USA
| | - Claudia Tapia-Alveal
- Department of Pathology and Cell Biology, Columbia University Medical Center, 10032, New York, NY, USA
| | - Kechun Wen
- Department of Mechanical Engineering, Columbia University, 10027, New York, NY, USA
| | - Tilla S Worgall
- Department of Pathology and Cell Biology, Columbia University Medical Center, 10032, New York, NY, USA
| | | | - Qiao Lin
- Department of Mechanical Engineering, Columbia University, 10027, New York, NY, USA.
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Chen L, Ye Z, Liu G, Lin Q, Chi Y, Wang J, Wei S, Wei C, Liu S, Zeng Y, Chen S, Wang Y. 85P Tislelizumab combined with apatinib and oxaliplatin plus S1 as neoadjuvant therapy for Borrmann IV large Borrmann III type and bulky N positive advanced gastric cancer: A single-arm multicenter trial (TAOS-3B-Trial). Immuno-Oncology and Technology 2022. [DOI: 10.1016/j.iotech.2022.100189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Liu S, Xiao H, Chen Y, Chen P, Yan W, Lin Q, Liu B, Xu X, Wang Y, Weng X, Liu L, Qu J. Nano-Optomechanical Resonators Based on Suspended Graphene for Thermal Stress Sensing. Sensors (Basel) 2022; 22:9068. [PMID: 36501770 PMCID: PMC9739392 DOI: 10.3390/s22239068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 11/18/2022] [Accepted: 11/21/2022] [Indexed: 06/17/2023]
Abstract
Nanomechanical resonators made from suspended graphene combine the properties of ultracompactness and ultrahigh detection sensitivity, making them interesting devices for sensing applications. However, nanomechanical systems can be affected by membrane stress. The present work developed an optomechanical resonator for thermal stress sensing. The proposed resonator consists of a section of hollow core fiber (HCF) and a trampoline graphene-Au membrane. An all-optical system that integrated optical excitation and optical detection was applied. Then, the resonance frequency of the resonator was obtained through this all-optical system. In addition, this system and the resonator were used to detect the membrane's built-in stress, which depended on the ambient temperature, by monitoring the resonance frequency shift. The results verified that the temperature-induced thermal effect had a significant impact on membrane stress. Temperature sensitivities of 2.2646 kHz/°C and 2.3212 kHz/°C were obtained when the temperature rose and fell, respectively. As such, we believe that this device will be beneficial for the quality monitoring of graphene mechanical resonators.
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Affiliation(s)
- Shen Liu
- Key Laboratory of Optoelectronic Devices and Systems of Guangdong Province and Ministry of Education, College of Physics and Optoelectronic Engineering, Shenzhen University, No. 3688, Nanhai Avenue, Shenzhen 518060, China
- Shenzhen Key Laboratory of Photonic Devices and Sensing Systems for Internet of Things, Guangdong and Hong Kong Joint Research Centre for Optical Fibre Sensors, Shenzhen University, Shenzhen 518060, China
| | - Hang Xiao
- Key Laboratory of Optoelectronic Devices and Systems of Guangdong Province and Ministry of Education, College of Physics and Optoelectronic Engineering, Shenzhen University, No. 3688, Nanhai Avenue, Shenzhen 518060, China
- Shenzhen Key Laboratory of Photonic Devices and Sensing Systems for Internet of Things, Guangdong and Hong Kong Joint Research Centre for Optical Fibre Sensors, Shenzhen University, Shenzhen 518060, China
| | - Yanping Chen
- Key Laboratory of Optoelectronic Devices and Systems of Guangdong Province and Ministry of Education, College of Physics and Optoelectronic Engineering, Shenzhen University, No. 3688, Nanhai Avenue, Shenzhen 518060, China
- Shenzhen Key Laboratory of Photonic Devices and Sensing Systems for Internet of Things, Guangdong and Hong Kong Joint Research Centre for Optical Fibre Sensors, Shenzhen University, Shenzhen 518060, China
| | - Peijing Chen
- Key Laboratory of Optoelectronic Devices and Systems of Guangdong Province and Ministry of Education, College of Physics and Optoelectronic Engineering, Shenzhen University, No. 3688, Nanhai Avenue, Shenzhen 518060, China
- Shenzhen Key Laboratory of Photonic Devices and Sensing Systems for Internet of Things, Guangdong and Hong Kong Joint Research Centre for Optical Fibre Sensors, Shenzhen University, Shenzhen 518060, China
| | - Wenqi Yan
- Key Laboratory of Optoelectronic Devices and Systems of Guangdong Province and Ministry of Education, College of Physics and Optoelectronic Engineering, Shenzhen University, No. 3688, Nanhai Avenue, Shenzhen 518060, China
- Shenzhen Key Laboratory of Photonic Devices and Sensing Systems for Internet of Things, Guangdong and Hong Kong Joint Research Centre for Optical Fibre Sensors, Shenzhen University, Shenzhen 518060, China
| | - Qiao Lin
- Key Laboratory of Optoelectronic Devices and Systems of Guangdong Province and Ministry of Education, College of Physics and Optoelectronic Engineering, Shenzhen University, No. 3688, Nanhai Avenue, Shenzhen 518060, China
- Shenzhen Key Laboratory of Photonic Devices and Sensing Systems for Internet of Things, Guangdong and Hong Kong Joint Research Centre for Optical Fibre Sensors, Shenzhen University, Shenzhen 518060, China
| | - Bonan Liu
- Key Laboratory of Optoelectronic Devices and Systems of Guangdong Province and Ministry of Education, College of Physics and Optoelectronic Engineering, Shenzhen University, No. 3688, Nanhai Avenue, Shenzhen 518060, China
- Shenzhen Key Laboratory of Photonic Devices and Sensing Systems for Internet of Things, Guangdong and Hong Kong Joint Research Centre for Optical Fibre Sensors, Shenzhen University, Shenzhen 518060, China
| | - Xizhen Xu
- Key Laboratory of Optoelectronic Devices and Systems of Guangdong Province and Ministry of Education, College of Physics and Optoelectronic Engineering, Shenzhen University, No. 3688, Nanhai Avenue, Shenzhen 518060, China
- Shenzhen Key Laboratory of Photonic Devices and Sensing Systems for Internet of Things, Guangdong and Hong Kong Joint Research Centre for Optical Fibre Sensors, Shenzhen University, Shenzhen 518060, China
| | - Yiping Wang
- Key Laboratory of Optoelectronic Devices and Systems of Guangdong Province and Ministry of Education, College of Physics and Optoelectronic Engineering, Shenzhen University, No. 3688, Nanhai Avenue, Shenzhen 518060, China
- Shenzhen Key Laboratory of Photonic Devices and Sensing Systems for Internet of Things, Guangdong and Hong Kong Joint Research Centre for Optical Fibre Sensors, Shenzhen University, Shenzhen 518060, China
| | - Xiaoyu Weng
- Key Laboratory of Optoelectronic Devices and Systems of Guangdong Province and Ministry of Education, College of Physics and Optoelectronic Engineering, Shenzhen University, No. 3688, Nanhai Avenue, Shenzhen 518060, China
| | - Liwei Liu
- Key Laboratory of Optoelectronic Devices and Systems of Guangdong Province and Ministry of Education, College of Physics and Optoelectronic Engineering, Shenzhen University, No. 3688, Nanhai Avenue, Shenzhen 518060, China
| | - Junle Qu
- Key Laboratory of Optoelectronic Devices and Systems of Guangdong Province and Ministry of Education, College of Physics and Optoelectronic Engineering, Shenzhen University, No. 3688, Nanhai Avenue, Shenzhen 518060, China
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Huang J, Zheng W, Zhang P, Lin Q, Chen Z, Xuan J, Liu C, Wu D, Huang Q, Zheng L, Liu S, Zhou K, Qu L, Li B, Yang J. ChIPBase v3.0: the encyclopedia of transcriptional regulations of non-coding RNAs and protein-coding genes. Nucleic Acids Res 2022; 51:D46-D56. [PMID: 36399495 PMCID: PMC9825553 DOI: 10.1093/nar/gkac1067] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Revised: 10/22/2022] [Accepted: 10/25/2022] [Indexed: 11/19/2022] Open
Abstract
Non-coding RNAs (ncRNAs) are emerging as key regulators of various biological processes. Although thousands of ncRNAs have been discovered, the transcriptional mechanisms and networks of the majority of ncRNAs have not been fully investigated. In this study, we updated ChIPBase to version 3.0 (https://rnasysu.com/chipbase3/) to provide the most comprehensive transcriptional regulation atlas of ncRNAs and protein-coding genes (PCGs). ChIPBase has identified ∼151 187 000 regulatory relationships between ∼171 600 genes and ∼3000 regulators by analyzing ∼55 000 ChIP-seq datasets, which represent a 30-fold expansion. Moreover, we de novo identified ∼29 000 motif matrices of transcription factors. In addition, we constructed a novel 'Enhancer' module to predict ∼1 837 200 regulation regions functioning as poised, active or super enhancers under ∼1300 conditions. Importantly, we constructed exhaustive coexpression maps between regulators and their target genes by integrating expression profiles of ∼65 000 normal and ∼15 000 tumor samples. We built a 'Disease' module to obtain an atlas of the disease-associated variations in the regulation regions of genes. We also constructed an 'EpiInter' module to explore potential interactions between epitranscriptome and epigenome. Finally, we designed 'Network' module to provide extensive and gene-centred regulatory networks. ChIPBase will serve as a useful resource to facilitate integrative explorations and expand our understanding of transcriptional regulation.
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Affiliation(s)
- Junhong Huang
- Key Laboratory of Gene Engineering of the Ministry of Education, State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, P.R. China
| | - Wujian Zheng
- Key Laboratory of Gene Engineering of the Ministry of Education, State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, P.R. China
| | - Ping Zhang
- Key Laboratory of Gene Engineering of the Ministry of Education, State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, P.R. China
| | - Qiao Lin
- Key Laboratory of Gene Engineering of the Ministry of Education, State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, P.R. China
| | - Zhirong Chen
- Key Laboratory of Gene Engineering of the Ministry of Education, State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, P.R. China
| | - Jiajia Xuan
- Key Laboratory of Gene Engineering of the Ministry of Education, State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, P.R. China
| | - Chang Liu
- Key Laboratory of Gene Engineering of the Ministry of Education, State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, P.R. China
| | - Di Wu
- Key Laboratory of Gene Engineering of the Ministry of Education, State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, P.R. China
| | - Qiaojuan Huang
- Key Laboratory of Gene Engineering of the Ministry of Education, State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, P.R. China
| | - Lingling Zheng
- Key Laboratory of Gene Engineering of the Ministry of Education, State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, P.R. China
| | - Shurong Liu
- Correspondence may also be addressed to Shurong Liu.
| | - Keren Zhou
- Correspondence may also be addressed to Keren Zhou.
| | - Lianghu Qu
- Correspondence may also be addressed to Lianghu Qu.
| | - Bin Li
- Correspondence may also be addressed to Bin Li.
| | - Jianhua Yang
- To whom correspondence should be addressed. Tel: +86 20 84112399; Fax: +86 20 84036551;
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Wang R, Zhang M, Hu Y, He J, Lin Q, Peng N. MiR-100-5p inhibits osteogenic differentiation of human bone mesenchymal stromal cells by targeting TMEM135. Hum Cell 2022; 35:1671-1683. [PMID: 35947339 DOI: 10.1007/s13577-022-00764-8] [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: 02/15/2022] [Accepted: 07/29/2022] [Indexed: 02/05/2023]
Abstract
Osteoporosis is a disorder characterized by reduced bone mass, disruption of bone microarchitecture, and a propensity to fracture. The osteogenic differentiation of human bone mesenchymal stromal cells (hBMSCs) exerts a critical effect on preventing bone loss during osteoporosis. Herein, the study recognized miR-100-5p as a deregulated miRNA during osteoporosis (upregulated) and BMSC osteogenic differentiation (downregulated). miR-100-5p was upregulated in osteoporosis patients-isolated BMSCs compared to non-osteoporosis trauma patients-isolated BMSCs. hBMSCs, overexpression inhibited hBMSC proliferation and osteogenic differentiation, whereas miR-100-5p inhibition exerted opposite effects. TMEM135 was downregulated in osteoporosis and upregulated in differentiated osteoblasts, as well as downregulated upon the overexpression of miR-100-5p. MiR-100-5p directly targeted and inhibited TMEM135. In hBMSCs, TMEM135 silencing also inhibited hBMSC osteogenic differentiation. When co-transfected to hBMSCs, antagomir-100-5p promoted, whereas TMEM135 silencing inhibited hBMSC osteogenic differentiation; TMEM135 knockdown dramatically attenuated the effects of miR-100-5p inhibition. Taken together, miR-100-5p forms a regulatory axis with TMEM135 by direct binding. The miR-100-5p/TMEM135 axis modulates hBMSC differentiation into osteoblast. Considering the critical effect of BMSC osteogenesis on osteoporosis, this axis might play a role in osteoporosis, and further in vivo and clinical investigations are required.
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Affiliation(s)
- Rui Wang
- Department of Endocrinology, The Affiliated Hospital of Guizhou Medical University, Guiyang, 550004, China
| | - Miao Zhang
- Department of Endocrinology, The Affiliated Hospital of Guizhou Medical University, Guiyang, 550004, China
| | - Ying Hu
- Department of Endocrinology, The Affiliated Hospital of Guizhou Medical University, Guiyang, 550004, China
| | - Juan He
- Department of Endocrinology, The Affiliated Hospital of Guizhou Medical University, Guiyang, 550004, China
| | - Qiao Lin
- Department of Endocrinology, The Affiliated Hospital of Guizhou Medical University, Guiyang, 550004, China
| | - Nianchun Peng
- Department of Endocrinology, The Affiliated Hospital of Guizhou Medical University, Guiyang, 550004, China.
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Lin Q, Ding K, Zhao R, Wang H, Ren L, Wei Y, Ye Q, Cui Y, He G, Tang W, Feng Q, Zhu D, Chang W, Lv Y, Mao Y, Wang X, Liang L, Zhou G, Liang F, Xu J. 43O Preoperative chemotherapy prior to primary tumor resection for colorectal cancer patients with asymptomatic resectable primary lesion and synchronous unresectable liver-limited metastases (RECUT): A prospective, randomized, controlled, multicenter clinical trial. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.10.075] [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: 12/07/2022] Open
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Wang QQ, Lin Q, Shan WY, Zhang T, Li YR, Zhang Y. [Effects of fucoidan inducing impairment of human osteosarcoma cell 143B and its mechanism]. Zhongguo Ying Yong Sheng Li Xue Za Zhi 2022; 38:739-744. [PMID: 37308428 DOI: 10.12047/j.cjap.6331.2022.135] [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: 06/14/2023]
Abstract
Objective: To investigate the effects of fucoidan inducing impairment of human osteosarcoma cell 143B, as well its mechanisms. Methods: After 143B cells were treated with different concentrations of FUC (0, 0.5, 1, 10, 100, 400, 800 μg/ml) for 48 h, the cell viability and dehydrogenase (LDH) level were detected by MTT assay and chemical colorimetry with six multiple wells for each concentration. Based on MTT results, we determined the value of IC50 was 244.5 μg/ml. The follow-up experiments were divided into control group (without FUC), FUC (10 μg/ml)-treated group, FUC (100 μg/ml)-treated group, FUC (400 μg/ml)-treated group and positive group (resveratrol, 40 μmol/L). There were four multiple wells for each concentration, and each experiment was repeated at least three times. Flow cytometry was performed to detect cell apoptosis and intracellular reactive oxygen species (ROS) level; acridine orange (AO) staining and lyso-tracker red staining were used to observe the autophagolysosome formation; chemical colorimetric analysis was performed to determine malondialdehyde (MDA) content and the activities of superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px); Western blot was used to detect protein expressions of nuclear factor E2-associated factor 2 (Nrf2), heme oxygenase 1 (HO-1) and autophagy-associated proteins including microtubule-associated light chain protein 3 (LC-3), Atg7, Beclin-1 and p62. Results: Compared with control group, the cell viability was decreased significantly in FUC (100~400 μg/ml)-treated groups (P<0.01); LDH levels in the supernatant (P<0.05 or P<0.01), the percentage of cell apoptosis (P<0.01), intracellular ROS level and MDA content (P<0.01) were increased remarkably; protein expressions of Atg7 and Beclin-1 were upregulated (P<0.05 or P<0.01); the conversion from LC-3I to LC-3II was significant (P<0.01) together with elevation of autophagolysosome formation (P<0.05 or P<0.01); while the activities of SOD and GSH-Px and protein expressions of Nrf2, HO-1 and p62 were decreased remarkably (P<0.05 or P<0.01). Conclusion: FUC (100~400 μg/ml) treatment induces oxidative damage and autophagic death in osteosarcoma 143B cells.
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Affiliation(s)
- Qi-Qi Wang
- College of Medicine, Shaoxing University, Shaoxing 312000, China
| | - Qiao Lin
- College of Medicine, Shaoxing University, Shaoxing 312000, China
| | - Wei-Yan Shan
- College of Medicine, Shaoxing University, Shaoxing 312000, China
| | - Tao Zhang
- College of Medicine, Shaoxing University, Shaoxing 312000, China
| | - Yu-Rong Li
- College of Medicine, Shaoxing University, Shaoxing 312000, China
| | - Yun Zhang
- College of Medicine, Shaoxing University, Shaoxing 312000, China
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Cappiello F, Casciaro B, Loffredo MR, Puglisi E, Lin Q, Yang D, Conte G, d’Angelo I, Ungaro F, Ferrera L, Barbieri R, Cresti L, Pini A, Di YP, Mangoni ML. Pulmonary Safety Profile of Esc Peptides and Esc-Peptide-Loaded Poly(lactide-co-glycolide) Nanoparticles: A Promising Therapeutic Approach for Local Treatment of Lung Infectious Diseases. Pharmaceutics 2022; 14:2297. [PMID: 36365116 PMCID: PMC9697339 DOI: 10.3390/pharmaceutics14112297] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 10/20/2022] [Accepted: 10/21/2022] [Indexed: 07/30/2023] Open
Abstract
In recent years, we have discovered Esc(1-21) and its diastereomer (Esc peptides) as valuable candidates for the treatment of Pseudomonas lung infection, especially in patients with cystic fibrosis (CF). Furthermore, engineered poly(lactide-co-glycolide) (PLGA) nanoparticles (NPs) were revealed to be a promising pulmonary delivery system of antimicrobial peptides. However, the "ad hoc" development of novel therapeutics requires consideration of their stability, tolerability, and safety. Hence, by means of electrophysiology experiments and preclinical studies on healthy mice, we demonstrated that neither Esc peptides or Esc-peptide-loaded PLGA NPs significantly affect the integrity of the lung epithelium, nor change the global gene expression profile of lungs of treated animals compared to those of vehicle-treated animals. Noteworthy, the Esc diastereomer endowed with the highest antimicrobial activity did not provoke any pulmonary pro-inflammatory response, even at a concentration 15-fold higher than the efficacy dosage 24 h after administration in the free or encapsulated form. The therapeutic index was ≥70, and the peptide was found to remain available in the bronchoalveolar lavage of mice, after two days of incubation. Overall, these studies should open an avenue for a new up-and-coming pharmacological approach, likely based on inhalable peptide-loaded NPs, to address CF lung disease.
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Affiliation(s)
- Floriana Cappiello
- Department of Biochemical Sciences, Laboratory Affiliated to Istituto Pasteur Italia-Fondazione Cenci Bolognetti, Sapienza University of Rome, 00185 Rome, Italy
| | - Bruno Casciaro
- Department of Biochemical Sciences, Laboratory Affiliated to Istituto Pasteur Italia-Fondazione Cenci Bolognetti, Sapienza University of Rome, 00185 Rome, Italy
| | - Maria Rosa Loffredo
- Department of Biochemical Sciences, Laboratory Affiliated to Istituto Pasteur Italia-Fondazione Cenci Bolognetti, Sapienza University of Rome, 00185 Rome, Italy
| | - Elena Puglisi
- Department of Biochemical Sciences, Laboratory Affiliated to Istituto Pasteur Italia-Fondazione Cenci Bolognetti, Sapienza University of Rome, 00185 Rome, Italy
| | - Qiao Lin
- Department of Environmental and Occupational Health, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - Dandan Yang
- Department of Environmental and Occupational Health, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - Gemma Conte
- Department of Pharmacy, University of Napoli Federico II, 80131 Napoli, Italy
| | - Ivana d’Angelo
- Department of Environmental, Biological and Pharmaceutical Sciences and Technologies (DiSTABiF), University of Campania Luigi Vanvitelli, 81100 Caserta, Italy
| | - Francesca Ungaro
- Department of Pharmacy, University of Napoli Federico II, 80131 Napoli, Italy
| | - Loretta Ferrera
- U.O.C. Genetica Medica, IRCCS, Istituto Giannina Gaslini, 16147 Genoa, Italy
| | - Raffaella Barbieri
- Biophysic Institute, Consiglio Nazionale delle Ricerche (CNR), 16149 Genoa, Italy
| | - Laura Cresti
- Department of Medical Biotechnologies, University of Siena, 53100 Siena, Italy
| | - Alessandro Pini
- Department of Medical Biotechnologies, University of Siena, 53100 Siena, Italy
| | - Yuanpu Peter Di
- Department of Environmental and Occupational Health, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - Maria Luisa Mangoni
- Department of Biochemical Sciences, Laboratory Affiliated to Istituto Pasteur Italia-Fondazione Cenci Bolognetti, Sapienza University of Rome, 00185 Rome, Italy
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Ding X, Lin Q, Zhao J, Fu Y, Zheng Y, Mo R, Zhang L, Zhang B, Chen J, Xie T, Wu H, Ding Y. Synonymous mutations in TLR2 and TLR9 genes decrease COPD susceptibility in the Chinese Han population. Pulmonology 2022:S2531-0437(22)00220-3. [PMID: 37585174 DOI: 10.1016/j.pulmoe.2022.09.010] [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: 07/14/2022] [Revised: 09/06/2022] [Accepted: 09/26/2022] [Indexed: 08/17/2023] Open
Abstract
INTRODUCTION Previous studies have found associations between polymorphisms in some candidate genes and chronic obstructive pulmonary disease (COPD) risk. However, the association between TLR2 and TLR9 polymorphisms and COPD risk remains uncertain. METHODS Four variants (rs352140, rs3804099, rs3804100, and rs5743705) of the TLR2 and TLR9 genes in 540 COPD patients and 507 healthy controls were genotyped using the Agena MassARRAY system. Odds ratio (OR) and 95% confidence interval (CI) were calculated to assess the association of TLR2 and TLR9 polymorphisms with COPD risk by logistic regression analysis. RESULTS TLR9-rs352140, TLR2-rs3804100, and TLR2-rs5743705 were related to a lower risk of COPD among Chinese people and the significance still existed after Bonferroni correction. Additionally, rs3804099, rs3804100, and rs352140 were found to be associated with COPD development in different subgroups (males, age ≤ 68 years, smokers, BMI < 24 kg/m2, and acute exacerbation). CONCLUSIONS Our findings indicated that TLR9 and TLR2 polymorphisms had protective effects on the development of COPD among Chinese people.
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Affiliation(s)
- X Ding
- Department of Pulmonary and Critical Care Medicine, Hainan Affiliated Hospital of Hainan Medical University, Hainan General Hospital, Haikou, Hainan, 570311, China
| | - Q Lin
- Department of General Practice, Hainan Affiliated Hospital of Hainan Medical University, Hainan General Hospital, Haikou, Hainan, 570311, China
| | - J Zhao
- Department of Pulmonary and Critical Care Medicine, Hainan Affiliated Hospital of Hainan Medical University, Hainan General Hospital, Haikou, Hainan, 570311, China
| | - Y Fu
- Department of Pulmonary and Critical Care Medicine, Hainan Affiliated Hospital of Hainan Medical University, Hainan General Hospital, Haikou, Hainan, 570311, China
| | - Y Zheng
- Department of Pulmonary and Critical Care Medicine, Hainan Affiliated Hospital of Hainan Medical University, Hainan General Hospital, Haikou, Hainan, 570311, China
| | - R Mo
- Department of Pulmonary and Critical Care Medicine, Hainan Affiliated Hospital of Hainan Medical University, Hainan General Hospital, Haikou, Hainan, 570311, China
| | - L Zhang
- Department of Pulmonary and Critical Care Medicine, Hainan Affiliated Hospital of Hainan Medical University, Hainan General Hospital, Haikou, Hainan, 570311, China
| | - B Zhang
- Department of Pulmonary and Critical Care Medicine, Hainan Affiliated Hospital of Hainan Medical University, Hainan General Hospital, Haikou, Hainan, 570311, China
| | - J Chen
- Department of General Practice, Hainan Affiliated Hospital of Hainan Medical University, Hainan General Hospital, Haikou, Hainan, 570311, China
| | - T Xie
- Department of Pulmonary and Critical Care Medicine, Hainan Affiliated Hospital of Hainan Medical University, Hainan General Hospital, Haikou, Hainan, 570311, China.
| | - H Wu
- Department of Pulmonary and Critical Care Medicine, Hainan Affiliated Hospital of Hainan Medical University, Hainan General Hospital, Haikou, Hainan, 570311, China.
| | - Y Ding
- Department of Pulmonary and Critical Care Medicine, Hainan Affiliated Hospital of Hainan Medical University, Hainan General Hospital, Haikou, Hainan, 570311, China; Department of General Practice, Hainan Affiliated Hospital of Hainan Medical University, Hainan General Hospital, Haikou, Hainan, 570311, China.
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Zhang Y, Dong F, Wang Z, Xu B, Zhang T, Wang Q, Lin Q. Fluoride Exposure Provokes Mitochondria-Mediated Apoptosis and Increases Mitophagy in Osteocytes via Increasing ROS Production. Biol Trace Elem Res 2022:10.1007/s12011-022-03450-w. [PMID: 36255553 DOI: 10.1007/s12011-022-03450-w] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Accepted: 10/13/2022] [Indexed: 11/28/2022]
Abstract
Fluoride is a persistent environmental pollutant, and its excessive intake causes skeletal and dental fluorosis. However, few studies focused on the effects of fluoride on osteocytes, making up over 95% of all bone cells. This study aimed to investigate the effect of fluoride on osteocytes in vitro, as well as explore the underlying mechanisms. CCK-8, LDH assay, fluorescent probes, flow cytometry, and western blotting were performed to examine cell viability, apoptosis, mitochondria changes, reactive oxygen species (ROS) and mitochondrial ROS (mtROS), and protein expressions. Results showed that sodium fluoride (NaF) exposure (4, 8 mmol/L) for 24 h inhibited the cell viability of osteocytes MLO-Y4 and promoted G0/G1 phase arrest and increased cell apoptosis. NaF treatment remarkably caused mitochondria damage, loss of MMP, ATP decrease, Cyto c release, and Bax/Bcl-2 ratio increase and elevated the activity of caspase-9 and caspase-3. Furthermore, NaF significantly upregulated the expressions of LC-3II, PINK1, and Parkin and increased autophagy flux and the accumulation of acidic vacuoles, while the p62 level was downregulated. In addition, NaF exposure triggered the production of intracellular ROS and mtROS and increased malondialdehyde (MDA); but superoxide dismutase (SOD) activity and glutathione (GSH) content were decreased. The scavenger N-acetyl-L-cysteine (NAC) significantly reversed NaF-induced apoptosis and mitophagy, suggesting that ROS is responsible for the mitochondrial-mediated apoptosis and mitophagy induced by NaF exposure. These findings provide in vitro evidence that apoptosis and mitophagy are cellular mechanisms for the toxic effect of fluoride on osteocytes, thereby suggesting the potential role of osteocytes in skeletal and dental fluorosis.
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Affiliation(s)
- Yun Zhang
- College of Medicine, Shaoxing University, Huancheng West Road 508, Shaoxing, 312000, People's Republic of China.
| | - Fanhe Dong
- College of Medicine, Shaoxing University, Huancheng West Road 508, Shaoxing, 312000, People's Republic of China
| | - Zihan Wang
- College of Medicine, Shaoxing University, Huancheng West Road 508, Shaoxing, 312000, People's Republic of China
| | - Bingbing Xu
- College of Medicine, Shaoxing University, Huancheng West Road 508, Shaoxing, 312000, People's Republic of China
| | - Tao Zhang
- College of Medicine, Shaoxing University, Huancheng West Road 508, Shaoxing, 312000, People's Republic of China
| | - Qiqi Wang
- College of Medicine, Shaoxing University, Huancheng West Road 508, Shaoxing, 312000, People's Republic of China
| | - Qiao Lin
- College of Medicine, Shaoxing University, Huancheng West Road 508, Shaoxing, 312000, People's Republic of China
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Swartz JA, Lin Q, Kim Y. A measurement invariance analysis of selected Opioid Overdose Knowledge Scale (OOKS) items among bystanders and first responders. PLoS One 2022; 17:e0271418. [PMID: 36240201 PMCID: PMC9565426 DOI: 10.1371/journal.pone.0271418] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Accepted: 09/27/2022] [Indexed: 11/18/2022] Open
Abstract
The Opioid Overdose Knowledge Scale (OOKS) is widely used as an adjunct to opioid education and naloxone distribution (OEND) for assessing pre- and post-training knowledge. However, the extent to which the OOKS performs comparably for bystander and first responder groups has not been well determined. We used exploratory structural equation modeling (ESEM) to assess the measurement invariance of an OOKS item subset when used as an OEND training pre-test. We used secondary analysis of pre-test data collected from 446 first responders and 1,349 bystanders (N = 1,795) attending OEND trainings conducted by two county public health departments. Twenty-four items were selected by practitioner/trainer consensus from the original 45-item OOKS instrument with an additional 2 removed owing to low response variation. We used exploratory factor analysis (EFA) followed by ESEM to identify a factor structure, which we assessed for configural, metric, and scalar measurement invariance by participant group using the 22 dichotomous items (correct/incorrect) as factor indicators. EFA identified a 3-factor model consisting of items assessing: basic overdose risk information, signs of an overdose, and rescue procedures/advanced overdose risk information. Model fit by ESEM estimation versus confirmatory factor analysis showed the ESEM model afforded a better fit. Measurement invariance analyses indicated the 3-factor model fit the data across all levels of invariance per standard fit statistic metrics. The reduced set of 22 OOKS items appears to offer comparable measurement of pre-training knowledge on opioid overdose risks, signs of an overdose, and rescue procedures for both bystanders and first responders.
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Affiliation(s)
- James A. Swartz
- Jane Addams College of Social Work, University of Illinois Chicago, Chicago, Illinois, United States of America
- * E-mail:
| | - Qiao Lin
- College of Education, University of Illinois Chicago, Chicago, Illinois, United States of America
| | - Yerim Kim
- Jane Addams College of Social Work, University of Illinois Chicago, Chicago, Illinois, United States of America
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Lin Q, Allanic N, Mousseau P, Madec Y, Beau G, Deterre R. On‐line melt temperature measurements for polymer injection molding through an instrumented annular duct. POLYM ENG SCI 2022. [DOI: 10.1002/pen.26161] [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: 11/09/2022]
Affiliation(s)
- Qiao Lin
- GEPEA Nantes Université Oniris , CNRS, GEPEA, UMR 6144 Nantes France
| | - Nadine Allanic
- GEPEA Nantes Université Oniris , CNRS, GEPEA, UMR 6144 Nantes France
| | - Pierre Mousseau
- GEPEA Nantes Université Oniris , CNRS, GEPEA, UMR 6144 Nantes France
| | - Yannick Madec
- GEPEA Nantes Université Oniris , CNRS, GEPEA, UMR 6144 Nantes France
| | - Grégoire Beau
- GEPEA Nantes Université Oniris , CNRS, GEPEA, UMR 6144 Nantes France
| | - Rémi Deterre
- GEPEA Nantes Université Oniris , CNRS, GEPEA, UMR 6144 Nantes France
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Sun T, Zhao H, Zhang J, Chen Y, Gao J, Liu L, Niu S, Han Z, Ren L, Lin Q. Degradable Bioinspired Hypersensitive Strain Sensor with High Mechanical Strength Using a Basalt Fiber as a Reinforced Layer. ACS Appl Mater Interfaces 2022; 14:42723-42733. [PMID: 36073899 DOI: 10.1021/acsami.2c12479] [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] [Indexed: 06/15/2023]
Abstract
Flexible strain sensors have received extensive attention due to their broad application prospects. However, a majority of present flexible strain sensors may fail to maintain normal sensing performances upon external loads because of their low strength and thus their performances are affected drastically with increasing loads, which severely restricts large-area popularization and application. Scorpions with hypersensitive vibration slit sensilla are coincident with a similar predicament. Herein, it is revealed that scorpions intelligently use risky slits to detect subtle vibrations, and meanwhile, the distinct layered composites of the main body of this organ prevent catastrophic failure of the sensory structure. Furthermore, the extensive use of flexible sensors will generate a mass of electronic waste just as obsoleting silicon-based devices. Considering mechanical properties and environmental issues, a flexible strain sensor based on an elastomer (Ecoflex)-wrapped fabric with the woven structure was designed and fabricated. Note that introducing a "green" basalt fiber (BF) into a degradable elastomer can effectively avoid environmental issues and significantly enhance the mechanical properties of the sensor. As a result, it shows excellent sensitivity (gauge factor (GF) ∼138.10) and high durability (∼40,000 cycles). Moreover, the reduced graphene oxide (RGO)/BF/Ecoflex flexible strain sensor possesses superior mechanical properties (tensile strength ∼20 MPa) and good flexibility. More significantly, the sensor can maintain normal performances under large external tensions, impact loads, and even underwater environments, providing novel design principles for environmentally friendly flexible sensors under extremely harsh environments.
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Affiliation(s)
- Tao Sun
- Key Laboratory of Bionic Engineering, Ministry of Education, Jilin University, Changchun 130022, China
| | - Houqi Zhao
- Key Laboratory of Bionic Engineering, Ministry of Education, Jilin University, Changchun 130022, China
| | - Junqiu Zhang
- Key Laboratory of Bionic Engineering, Ministry of Education, Jilin University, Changchun 130022, China
| | - Yu Chen
- Key Laboratory of Bionic Engineering, Ministry of Education, Jilin University, Changchun 130022, China
| | - Jiqi Gao
- Key Laboratory of Bionic Engineering, Ministry of Education, Jilin University, Changchun 130022, China
| | - Linpeng Liu
- The State Key Laboratory of High Performance and Complex Manufacturing, College of Mechanical and Electrical Engineering, Central South University, Changsha 410012, China
| | - Shichao Niu
- Key Laboratory of Bionic Engineering, Ministry of Education, Jilin University, Changchun 130022, China
| | - Zhiwu Han
- Key Laboratory of Bionic Engineering, Ministry of Education, Jilin University, Changchun 130022, China
| | - Luquan Ren
- Key Laboratory of Bionic Engineering, Ministry of Education, Jilin University, Changchun 130022, China
| | - Qiao Lin
- Biomedical Microelectromechanical Systems Laboratory, Department of Mechanical Engineering, Columbia University, New York 10027, United States
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