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Xu Z, Ni Y, Gu B, Zhou H, Luo Y, Li N, Chen S. Efficacy of Deep Venous Catheterization in the Management of Pneumothorax: A Clinical Study Utilizing Conventional Closed Thoracic Drainage. Altern Ther Health Med 2024:AT8325. [PMID: 38639634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/20/2024]
Abstract
Background Currently, conventional closed thoracic drainage for pneumothorax involves a painful procedure with a higher risk and wider (1~1.5 cm) incision. Minimally invasive catheterized drainage techniques are urgently needed to address this challenge. Objective This retrospective study aims to observe the effects of conventional closed thoracic drainage with deep venous catheterization drainage techniques on pneumothorax patients. Design It was a retrospective study. Setting This study was conducted at Huaian No.1 People's Hospital, Affiliated with Nanjing Medical University. Participants A total of 105 pneumothorax patients who underwent conventional closed thoracic drainage (CCTD) or deep venous catheterization drainage technique (DVCDT) procedures at the hospital from 1st February 2020 to 30th October 2022 were selected. Interventions Patients received either CCTD or DVCDT. Primary Outcome Measures Included: (1) clinical variables; (2) catheterization procedure-related features; and (3) visual analogue scale (VAS) scores from pneumothorax patients. Results Both conventional closed thoracic drainage and deep venous catheterization drainage techniques were successfully performed in all 105 (100%) patients, comprising 67 (63.8%) spontaneous pneumothorax, 20 (19%) iatrogenic pneumothorax, and 18 (17.1%) traumatic pneumothorax cases. Significant differences were observed between the enrolled spontaneous pneumothorax and traumatic pneumothorax patients in the two groups (CCTD and DVCDT) (P = .01 and P < .0001). Additionally, 55 (52.4%) patients underwent deep venous catheterization, while 50 (47.6%) patients underwent conventional closed thoracic drainage. The deep venous catheterization insertion procedure had a shorter mean timing (7.51±1.66 min) compared to the conventional closed thoracic drainage procedure (12.44±1.73 min) (P < .0001). Furthermore, VAS scores were significantly lower in pneumothorax patients undergoing deep venous catheterization (2.1±0.99) compared to conventional closed thoracic drainage (5.1±0.81) (P < .0001). Conclusion Deep venous thoracic drainage technique appears to be safer and more beneficial than conventional closed thoracic drainage procedures for treating pneumothorax. This technique offers advantages such as minimal scarring, lower VAS scores, and shorter insertion time, thereby improving safety and surgical outcomes.
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Zhou S, Cai L, Wu H, Wang B, Gu B, Cui S, Huang X, Xu Z, Hao B, Hou H, Hu Y, Li C, Tian Y, Liu X, Chen L, Liu S, Jiang L, Wan J. Fine-tuning rice heading date through multiplex editing of the regulatory regions of key genes by CRISPR-Cas9. Plant Biotechnol J 2024; 22:751-758. [PMID: 37932934 PMCID: PMC10893950 DOI: 10.1111/pbi.14221] [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] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 09/10/2023] [Accepted: 10/15/2023] [Indexed: 11/08/2023]
Abstract
Heading date (or flowering time) is a key agronomic trait that affects seasonal and regional adaption of rice cultivars. An unoptimized heading date can either not achieve a high yield or has a high risk of encountering abiotic stresses. There is a strong demand on the mild to moderate adjusting the heading date in breeding practice. Genome editing is a promising method which allows more precise and faster changing the heading date of rice. However, direct knock out of major genes involved in regulating heading date will not always achieve a new germplasm with expected heading date. It is still challenging to quantitatively adjust the heading date of elite cultivars with best adaption for broader region. In this study, we used a CRISPR-Cas9 based genome editing strategy called high-efficiency multiplex promoter-targeting (HMP) to generate novel alleles at cis-regulatory regions of three major heading date genes: Hd1, Ghd7 and DTH8. We achieved a series of germplasm with quantitative variations of heading date by editing promoter regions and adjusting the expression levels of these genes. We performed field trials to screen for the best adapted lines for different regions. We successfully expanded an elite cultivar Ningjing8 (NJ8) to a higher latitude region by selecting a line with a mild early heading phenotype that escaped from cold stress and achieved high yield potential. Our study demonstrates that HMP is a powerful tool for quantitatively regulating rice heading date and expanding elite cultivars to broader regions.
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Affiliation(s)
- Shirong Zhou
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Jiangsu Engineering Research Center for Plant Genome Editing, National Observation and Research Station of Rice Germplasm ResourcesNanjing Agricultural UniversityNanjingChina
| | - Liang Cai
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Jiangsu Engineering Research Center for Plant Genome Editing, National Observation and Research Station of Rice Germplasm ResourcesNanjing Agricultural UniversityNanjingChina
| | - Haoqin Wu
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Jiangsu Engineering Research Center for Plant Genome Editing, National Observation and Research Station of Rice Germplasm ResourcesNanjing Agricultural UniversityNanjingChina
| | - Baoxiang Wang
- Institute of Lianyungang Agricultural Science of Xuhuai Area/Lianyungang Institute of Agricultural SciencesLianyungangChina
| | - Biao Gu
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Jiangsu Engineering Research Center for Plant Genome Editing, National Observation and Research Station of Rice Germplasm ResourcesNanjing Agricultural UniversityNanjingChina
| | - Song Cui
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Jiangsu Engineering Research Center for Plant Genome Editing, National Observation and Research Station of Rice Germplasm ResourcesNanjing Agricultural UniversityNanjingChina
| | - Xiaolong Huang
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Jiangsu Engineering Research Center for Plant Genome Editing, National Observation and Research Station of Rice Germplasm ResourcesNanjing Agricultural UniversityNanjingChina
| | - Zhuang Xu
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Jiangsu Engineering Research Center for Plant Genome Editing, National Observation and Research Station of Rice Germplasm ResourcesNanjing Agricultural UniversityNanjingChina
| | - Benyuan Hao
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Jiangsu Engineering Research Center for Plant Genome Editing, National Observation and Research Station of Rice Germplasm ResourcesNanjing Agricultural UniversityNanjingChina
| | - Haigang Hou
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Jiangsu Engineering Research Center for Plant Genome Editing, National Observation and Research Station of Rice Germplasm ResourcesNanjing Agricultural UniversityNanjingChina
| | - Yuan Hu
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Jiangsu Engineering Research Center for Plant Genome Editing, National Observation and Research Station of Rice Germplasm ResourcesNanjing Agricultural UniversityNanjingChina
| | - Chao Li
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Jiangsu Engineering Research Center for Plant Genome Editing, National Observation and Research Station of Rice Germplasm ResourcesNanjing Agricultural UniversityNanjingChina
| | - Yunlu Tian
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Jiangsu Engineering Research Center for Plant Genome Editing, National Observation and Research Station of Rice Germplasm ResourcesNanjing Agricultural UniversityNanjingChina
| | - Xi Liu
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Jiangsu Engineering Research Center for Plant Genome Editing, National Observation and Research Station of Rice Germplasm ResourcesNanjing Agricultural UniversityNanjingChina
| | - Liangming Chen
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Jiangsu Engineering Research Center for Plant Genome Editing, National Observation and Research Station of Rice Germplasm ResourcesNanjing Agricultural UniversityNanjingChina
| | - Shijia Liu
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Jiangsu Engineering Research Center for Plant Genome Editing, National Observation and Research Station of Rice Germplasm ResourcesNanjing Agricultural UniversityNanjingChina
| | - Ling Jiang
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Jiangsu Engineering Research Center for Plant Genome Editing, National Observation and Research Station of Rice Germplasm ResourcesNanjing Agricultural UniversityNanjingChina
| | - Jianmin Wan
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Jiangsu Engineering Research Center for Plant Genome Editing, National Observation and Research Station of Rice Germplasm ResourcesNanjing Agricultural UniversityNanjingChina
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop ScienceChinese Academy of Agricultural SciencesBeijingChina
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Wang XR, Li S, Liu JY, Gu B, Jia ZJ, Tang B. [Establishment of a rapid method for detection of influenza A/B virus' antigens]. Zhonghua Yu Fang Yi Xue Za Zhi 2023; 57:1608-1612. [PMID: 37859378 DOI: 10.3760/cma.j.cn112150-20230411-00280] [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: 10/21/2023]
Abstract
This study aims to develop a rapid and convenient test card for simultaneous detection of influenza A and influenza B viruses using quantum dot-based immunochromatographic assay. The test card consists of a test strip and a plastic casing. The test strip is composed of absorbent paper, a buffer pad, nitrocellulose membrane (NC membrane), sample pad, quantum dot-labeled antibody pad, and polyvinyl chloride (PVC) board. The NC membrane is coated with mouse monoclonal antibodies against influenza A and influenza B viruses for the T lines (test lines), and reference proteins A and B for the C line (control line). The quantum dot-labeled antibody pad contains mouse monoclonal antibody-quantum dot conjugates against influenza A and influenza B viruses. The results showed that the detection limit of the test card for both viruses ranged from 1.51 ×102 to 2.71×103 TCID50/ml, indicating its sensitivity for accurate detection of influenza A and influenza B viruses without being affected by various variants. The test card exhibited specific reactions with different subtypes of influenza A and influenza B virus culture fluids and showed no cross-reactivity with adenovirus, novel coronavirus, Mycoplasma pneumoniae, respiratory syncytial virus, Staphylococcus aureus, and other pathogens. Overall, the sensitivity and specificity of the test card for simultaneous detection of influenza A and influenza B viruses meet the requirements for clinical use. It offers the advantages of simplicity, rapidity, and no requirement for special equipment, enabling quick auxiliary diagnosis to prevent disease transmission.
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Affiliation(s)
- X R Wang
- Medical Technology School of Xuzhou Medical University, Xuzhou 221004, China
| | - S Li
- Nanjing Vazyme Medical Technology Co., Ltd, Nanjing 210000, China
| | - J Y Liu
- Nanjing Vazyme Medical Technology Co., Ltd, Nanjing 210000, China
| | - B Gu
- Department of Laboratory Medicine, Guangdong Provincial people's Hospital, Guangzhou 510080, China
| | - Z J Jia
- Department of Nuclear Medicine, the Drum Tower Hospital Affiliated to the Medical School of Nanjing University, Nanjing 210000, China
| | - B Tang
- Medical Technology School of Xuzhou Medical University, Xuzhou 221004, China Nanjing Vazyme Medical Technology Co., Ltd, Nanjing 210000, China
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Gao H, Guo Y, Ren M, Tang L, Gao W, Tian S, Shao G, Peng Q, Gu B, Miao J, Liu X. Phytophthora RxLR effector PcSnel4B promotes degradation of resistance protein AtRPS2. Plant Physiol 2023; 193:1547-1560. [PMID: 37429009 DOI: 10.1093/plphys/kiad404] [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] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 05/19/2023] [Accepted: 05/23/2023] [Indexed: 07/12/2023]
Abstract
Phytophthora capsici deploys effector proteins to manipulate host immunity and facilitate its colonization. However, the underlying mechanisms remain largely unclear. In this study, we demonstrated that a Sne-like (Snel) RxLR effector gene PcSnel4 is highly expressed at the early stages of P. capsici infection in Nicotiana benthamiana. Knocking out both alleles of PcSnel4 attenuated the virulence of P. capsici, while expression of PcSnel4 promoted its colonization in N. benthamiana. PcSnel4B could suppress the hypersensitive reaction (HR) induced by Avr3a-R3a and RESISTANCE TO PSEUDOMONAS SYRINGAE 2 (AtRPS2), but it did not suppress cell death elicited by Phytophthora infestin 1 (INF1) and Crinkler 4 (CRN4). COP9 signalosome 5 (CSN5) in N. benthamiana was identified as a host target of PcSnel4. Silencing NbCSN5 compromised the cell death induced by AtRPS2. PcSnel4B impaired the interaction and colocalization of Cullin1 (CUL1) and CSN5 in vivo. Expression of AtCUL1 promoted the degradation of AtRPS2 and disrupted HR, while AtCSN5a stabilized AtRPS2 and promoted HR, regardless of the expression of AtCUL1. PcSnel4 counteracted the effect of AtCSN5 and enhanced the degradation of AtRPS2, resulting in HR suppression. This study deciphered the underlying mechanism of PcSnel4-mediated suppression of HR induced by AtRPS2.
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Affiliation(s)
- Huhu Gao
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yuchen Guo
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Mengyuan Ren
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Lijun Tang
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Wenxin Gao
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Song Tian
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Guangda Shao
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Qin Peng
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Biao Gu
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Jianqiang Miao
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Xili Liu
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
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Gu B, Yang M, Shi L, Yuan G, Xie H, Ni B. Progranulin modulates the progression of non-small cell lung cancer through lncRNA H19. Am J Transl Res 2023; 15:4887-4901. [PMID: 37560245 PMCID: PMC10408529] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Accepted: 06/01/2023] [Indexed: 08/11/2023]
Abstract
OBJECTIVE This study aimed to explore the specific mechanism of action of Progranulin (PGRN) in non-small cell lung cancer (NSCLC) and its interaction with lncRNA H19. METHODS Normal and cancerous lung tissues were collected from patients with NSCLC and healthy volunteers. We assessed the expression of PGRN in both groups using immunohistochemistry, quantitative-reverse transcription-polymerase chain reaction (qRT-PCR), and western blotting (WB). RESULTS Compared to the controls, PGRN expression was noticeably higher in tumor tissues. The high expression of PGRN in patients with NSCLC was inversely correlated to the prognosis and strongly associated with the biological features and clinicopathologic data. High PGRN expression significantly improved the ability of NSCLC cells to proliferate and migrate and was positively correlated with tumor formation, based on in vitro and in vivo cellular tests. Expression of lncRNA H19 was also found to be elevated in NSCLC tissue and cells. The expression of H19 was correlated with tumor growth in vivo and in vitro, and H19 regulated PGRN by mediating the expression of miR-29b-3p. CONCLUSIONS H19 and PGRN can serve as biomarkers and therapeutic targets in NSCLC.
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Affiliation(s)
- Biao Gu
- Department of Thoracic Surgery, The First Affiliated Hospital of Soochow University899 Pinghai Road, Suzhou 215006, Jiangsu, China
- Department of Thoracic Surgery, The Affiliated Huai’an No. 1 People’s Hospital of Nanjing Medical University1 Huanghe West Road, Huai’an 223300, Jiangsu, China
| | - Maoyuan Yang
- Department of Thoracic Surgery, The First Affiliated Hospital of Soochow University899 Pinghai Road, Suzhou 215006, Jiangsu, China
| | - Liang Shi
- Department of Thoracic Surgery, The First Affiliated Hospital of Soochow University899 Pinghai Road, Suzhou 215006, Jiangsu, China
| | - Guangda Yuan
- Department of Thoracic Surgery, The First Affiliated Hospital of Soochow University899 Pinghai Road, Suzhou 215006, Jiangsu, China
- Department of Thoracic Surgery, The Affiliated Suzhou Hospital of Nanjing Medical University16 Baita West Road, Suzhou 215006, Jiangsu, China
| | - Hongya Xie
- Department of Thoracic Surgery, The First Affiliated Hospital of Soochow University899 Pinghai Road, Suzhou 215006, Jiangsu, China
- Department of Thoracic Surgery, The Affiliated Suzhou Hospital of Nanjing Medical University16 Baita West Road, Suzhou 215006, Jiangsu, China
| | - Bin Ni
- Department of Thoracic Surgery, The First Affiliated Hospital of Soochow University899 Pinghai Road, Suzhou 215006, Jiangsu, China
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Jiang C, Yuan Y, Gu B, Ahn E, Kim J, Feng D, Huang Q, Song S. Preoperative prediction of microvascular invasion and perineural invasion in pancreatic ductal adenocarcinoma with 18F-FDG PET/CT radiomics analysis. Clin Radiol 2023:S0009-9260(23)00219-2. [PMID: 37365115 DOI: 10.1016/j.crad.2023.05.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 04/23/2023] [Accepted: 05/13/2023] [Indexed: 06/28/2023]
Abstract
AIM To develop and validate a predictive model based on 2-[18F]-fluoro-2-deoxy-d-glucose (18F-FDG) positron-emission tomography (PET)/computed tomography (CT) radiomics features and clinicopathological parameters to preoperatively identify microvascular invasion (MVI) and perineural invasion (PNI), which are important predictors of poor prognosis in patients with pancreatic ductal adenocarcinoma (PDAC). MATERIALS AND METHODS Preoperative 18F-FDG PET/CT images and clinicopathological parameters of 170 patients in PDAC were collected retrospectively. The whole tumour and its peritumoural variants (tumour dilated with 3, 5, and 10 mm pixels) were applied to add tumour periphery information. A feature-selection algorithm was employed to mine mono-modality and fused feature subsets, then conducted binary classification using gradient boosted decision trees. RESULTS For MVI prediction, the model performed best on a fused subset of 18F-FDG PET/CT radiomics features and two clinicopathological parameters, with an area under the receiver operating characteristic curve (AUC) of 83.08%, accuracy of 78.82%, recall of 75.08%, precision of 75.5%, and F1-score of 74.59%. For PNI prediction, the model achieved best prediction results only on the subset of PET/CT radiomics features, with AUC of 94%, accuracy of 89.33%, recall of 90%, precision of 87.81%, and F1 score of 88.35%. In both models, 3 mm dilation on the tumour volume produced the best results. CONCLUSIONS The radiomics predictors from preoperative 18F-FDG PET/CT imaging exhibited instructive predictive efficacy in the identification of MVI and PNI status preoperatively in PDAC. Peritumoural information was shown to assist in MVI and PNI predictions.
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Affiliation(s)
- C Jiang
- Department of Nuclear Medicine, Fudan University Shanghai Cancer Center, Fudan University, Shanghai, China; Department of Nuclear Medicine, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Y Yuan
- Biomedical and Multimedia Information Technology Research Group, School of Computer Science, University of Sydney, Sydney, Australia
| | - B Gu
- Department of Nuclear Medicine, Fudan University Shanghai Cancer Center, Fudan University, Shanghai, China
| | - E Ahn
- Discipline of Information Technology, College of Science & Engineering, James Cook University, Australia
| | - J Kim
- Biomedical and Multimedia Information Technology Research Group, School of Computer Science, University of Sydney, Sydney, Australia
| | - D Feng
- Biomedical and Multimedia Information Technology Research Group, School of Computer Science, University of Sydney, Sydney, Australia
| | - Q Huang
- School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China.
| | - S Song
- Department of Nuclear Medicine, Fudan University Shanghai Cancer Center, Fudan University, Shanghai, China.
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Zhao J, Tang C, Zhang K, Li X, Dai C, Gu B. Construction of a novel ESIPT and AIE-based fluorescent sensor for sequentially detecting Cu 2+ and H 2S in both living cells and zebrafish. Spectrochim Acta A Mol Biomol Spectrosc 2023; 300:122951. [PMID: 37270973 DOI: 10.1016/j.saa.2023.122951] [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] [Received: 04/18/2023] [Revised: 05/17/2023] [Accepted: 05/28/2023] [Indexed: 06/06/2023]
Abstract
The development of effective methods for tracking Cu2+ and H2S in living organisms is urgently required due to their vital function in a variety of pathophysiological processes. In this work, a new fluorescent sensor BDF with excited-state intramolecular proton transfer (ESIPT) and aggregation-induced emission (AIE) features for the successive detection of Cu2+ and H2S was constructed by introducing 3,5-bis(trifluoromethyl)phenylacetonitrile into the benzothiazole skeleton. BDF showed a fast, selective and sensitive fluorescence "turn off" response to Cu2+ in physiological media, and the situ-formed complex can serve as a fluorescence "turn on" sensor for highly selective detection of H2S through the Cu2+ displacement approach. In addition, the detection limits of BDF for Cu2+ and H2S were determined to be 0.05 and 1.95 μM, respectively. Encouraged by its favourable features, including strong red fluorescence from the AIE effect, large Stokes shift (285 nm), high anti-interference ability and good function at physiological pH as well as a low toxicity, BDF was successfully applied for the consequent imaging of Cu2+ and H2S in both living cells and zebrafish, making it an ideal candidate for detecting and imaging of Cu2+ and H2S in live systems.
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Affiliation(s)
- Jingjun Zhao
- Key Laboratory of Organometallic New Materials, Hunan Provincial Engineering Research Center for Monitoring and Treatment of Heavy Metals Pollution in the Upper Reaches of Xiangjiang River, College of Chemistry and Materials Science, Hengyang Normal University, Hengyang, 421008, PR China
| | - Can Tang
- Key Laboratory of Organometallic New Materials, Hunan Provincial Engineering Research Center for Monitoring and Treatment of Heavy Metals Pollution in the Upper Reaches of Xiangjiang River, College of Chemistry and Materials Science, Hengyang Normal University, Hengyang, 421008, PR China
| | - Keyang Zhang
- Key Laboratory of Organometallic New Materials, Hunan Provincial Engineering Research Center for Monitoring and Treatment of Heavy Metals Pollution in the Upper Reaches of Xiangjiang River, College of Chemistry and Materials Science, Hengyang Normal University, Hengyang, 421008, PR China
| | - Xinyu Li
- Key Laboratory of Organometallic New Materials, Hunan Provincial Engineering Research Center for Monitoring and Treatment of Heavy Metals Pollution in the Upper Reaches of Xiangjiang River, College of Chemistry and Materials Science, Hengyang Normal University, Hengyang, 421008, PR China
| | - Cong Dai
- Key Laboratory of Organometallic New Materials, Hunan Provincial Engineering Research Center for Monitoring and Treatment of Heavy Metals Pollution in the Upper Reaches of Xiangjiang River, College of Chemistry and Materials Science, Hengyang Normal University, Hengyang, 421008, PR China
| | - Biao Gu
- Key Laboratory of Organometallic New Materials, Hunan Provincial Engineering Research Center for Monitoring and Treatment of Heavy Metals Pollution in the Upper Reaches of Xiangjiang River, College of Chemistry and Materials Science, Hengyang Normal University, Hengyang, 421008, PR China.
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Gu B, Gao W, Liu Z, Shao G, Peng Q, Mu Y, Wang Q, Zhao H, Miao J, Liu X. A single region of the Phytophthora infestans avirulence effector Avr3b functions in both cell death induction and plant immunity suppression. Mol Plant Pathol 2023; 24:317-330. [PMID: 36696541 PMCID: PMC10013827 DOI: 10.1111/mpp.13298] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 12/20/2022] [Accepted: 12/20/2022] [Indexed: 06/17/2023]
Abstract
As a destructive plant pathogen, Phytophthora infestans secretes diverse host-entering RxLR effectors to facilitate infection. One critical RxLR effector, PiAvr3b, not only induces effector-triggered immunity (ETI), which is associated with the potato resistance protein StR3b, but also suppresses pathogen-associated molecular pattern (PAMP)-triggered immunity (PTI). To date, the molecular basis underlying such dual activities remains unknown. Based on phylogenetic analysis of global P. infestans isolates, we found two PiAvr3b isoforms that differ by three amino acids. Despite this sequence variation, the two isoforms retain the same properties in activating the StR3b-mediated hypersensitive response (HR) and inhibiting necrosis induced by three PAMPs (PiNpp, PiINF1, and PsXeg1) and an RxLR effector (Pi10232). Using a combined mutagenesis approach, we found that the dual activities of PiAvr3b were tightly linked and determined by 88 amino acids at the C-terminus. We further determined that either the W60 or the E134 residue of PiAvr3b was essential for triggering StR3b-associated HR and inhibiting PiNpp- and Pi10232-associated necrosis, while the S99 residue partially contributed to PTI suppression. Additionally, nuclear localization of PiAvr3b was required to stimulate HR and suppress PTI, but not to inhibit Pi10232-associated cell death. Our study revealed that PiAvr3b suppresses the plant immune response at different subcellular locations and provides an example in which a single amino acid of an RxLR effector links ETI induction and cell death suppression.
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Affiliation(s)
- Biao Gu
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant ProtectionNorthwest A&F UniversityYanglingChina
| | - Wenxin Gao
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant ProtectionNorthwest A&F UniversityYanglingChina
| | - Zeqi Liu
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant ProtectionNorthwest A&F UniversityYanglingChina
| | - Guangda Shao
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant ProtectionNorthwest A&F UniversityYanglingChina
| | - Qin Peng
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant ProtectionNorthwest A&F UniversityYanglingChina
| | - Yinyu Mu
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant ProtectionNorthwest A&F UniversityYanglingChina
| | - Qinhu Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant ProtectionNorthwest A&F UniversityYanglingChina
| | - Hua Zhao
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant ProtectionNorthwest A&F UniversityYanglingChina
| | - Jianqiang Miao
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant ProtectionNorthwest A&F UniversityYanglingChina
| | - Xili Liu
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant ProtectionNorthwest A&F UniversityYanglingChina
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Tian BS, Ling Y, Lyu JW, Ye L, Gu B. [A retrospective analysis of clinical characteristics and prognostic factors for 152 cases of Staphylococcus aureus bloodstream infection]. Zhonghua Yu Fang Yi Xue Za Zhi 2023; 57:241-246. [PMID: 36797583 DOI: 10.3760/cma.j.cn112150-20220221-00161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
To understand the clinical characteristics of Staphylococcus aureus bloodstream infection and the main risk factors affecting clinical prognosis, providing a reference for clinical prevention and control of Staphylococcus aureus bloodstream infection. In this study, the clinical data of 152 patients with Staphylococcus aureus bloodstream infection admitted to Guangdong Provincial People's Hospital from January 2019 to December 2021 were retrospectively analyzed by reviewing the electronic medical record system, including underlying diseases, clinical characteristics, risk factors, and bacterial resistance. Statistical methods such as Chi-Squared Test and t Test were used to analyze the related risk factors that may affect the clinical characteristics and prognosis of patients with Staphylococcus aureus and methicillin-resistant Staphylococcus aureus (MRSA) bloodstream infection, then the variables with P<0.05 in univariate analysis were included in the multivariate logistic regression model to analyze the independent risk factors of poor prognosis. The results showed among 152 patients with Staphylococcus aureus bloodstream infection, 50 patients (32.89%) were infected with MRSA. In comparison, 102 patients (67.11%) were infected with methicillin-sensitive Staphylococcus aureus (MSSA). Except for rifampicin, the resistance rate of MRSA to commonly used antibiotics was all higher than that of MSSA, and the difference was statistically significant (Chi-square values were 8.272, 11.972, 4.998, 4.776, respectively;all P-values are less than 0.05). Strains resistant to vancomycin, linezolid, and quinupristin/dalfopristin were not found. In the MRSA group, indwelling catheter and drainage tube, carbapenems, and β-lactamase inhibitor treatment were significantly higher than the MSSA group. The difference was statistically significant (P<0.05). The incidence of poor prognosis of bloodstream infection in the MRSA group was higher than that in the MSSA group (34.00% vs 13.73%), and the difference was statistically significant (χ2=8.495, P<0.05). No independent risk factors associated with poor prognosis were found in the included patients with MRSA bloodstream infection.Multivariate Logistic regression model analysis showed that solid malignant tumors (OR=13.576, 95%CI: 3.352-54.977, P<0.05), mechanical ventilation (OR=7.468, 95%CI: 1.398-39.884, P<0.05) were the most important independent risk factors for poor prognosis in patients with Staphylococcus aureus bloodstream infection. In summary, the poor prognosis rate of MRSA bloodstream infection is higher than that of MSSA. The clinical evaluation of related risk factors should be strengthened, targeted prevention and control interventions should be taken to improve the prognosis of patients with Staphylococcus aureus bloodstream infection, and the use of antibiotics should be rational and standardized, to control bacterial infection and drug resistance effectively.
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Affiliation(s)
- B S Tian
- Medical Technology School of Xuzhou Medical University, Xuzhou Key Laboratory of Laboratory Diagnostics, Xuzhou 221004, China Division of Laboratory Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences,Guangzhou 510080, China
| | - Y Ling
- Division of Laboratory Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences,Guangzhou 510080, China
| | - J W Lyu
- Medical Technology School of Xuzhou Medical University, Xuzhou Key Laboratory of Laboratory Diagnostics, Xuzhou 221004, China Division of Laboratory Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences,Guangzhou 510080, China
| | - L Ye
- Division of Laboratory Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences,Guangzhou 510080, China
| | - B Gu
- Medical Technology School of Xuzhou Medical University, Xuzhou Key Laboratory of Laboratory Diagnostics, Xuzhou 221004, China Division of Laboratory Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences,Guangzhou 510080, China
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10
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Tian BS, Wu YJ, Cui XX, Lyu JW, Chen MH, Zhu C, Gu B. [Research progress of CRISPR/Cas biosensors based on different signal amplification strategies]. Zhonghua Yu Fang Yi Xue Za Zhi 2023; 57:112-119. [PMID: 36655267 DOI: 10.3760/cma.j.cn112150-20220220-00158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
CRISPR/Cas(the clustered regularly interspaced short palindromic repeats-CRISPR associated)system exists in most bacteria and all archaea. It is an important strategy for bacteria and archaea to resist foreign nucleic acid invasion and use for self-defense. The CRISPR/Cas system is a simple, fast, and specific diagnostic tool, which is widely used in agriculture, industry, animal husbandry, and medicine. This article mainly introduces and discusses recently advantages and limitations of biosensors combining CRISPR/Cas system with fluorescence, visualization and surface enhanced raman related technologies, as well as future research directions.
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Affiliation(s)
- B S Tian
- College of Medical Technology, Xuzhou Medical University, Xuzhou 221004, China Division of Laboratory Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences,Guangzhou 510080, China
| | - Y J Wu
- School of Medical Imaging, Xuzhou Medical University, Xuzhou 221004, China
| | - X X Cui
- College of Medical Technology, Xuzhou Medical University, Xuzhou 221004, China Division of Laboratory Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences,Guangzhou 510080, China
| | - J W Lyu
- College of Medical Technology, Xuzhou Medical University, Xuzhou 221004, China Division of Laboratory Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences,Guangzhou 510080, China
| | - M H Chen
- School of Medical Imaging, Xuzhou Medical University, Xuzhou 221004, China
| | - C Zhu
- Department of Laboratory Medicine, Xuzhou Tumor Hospital, Xuzhou 221005, China
| | - B Gu
- College of Medical Technology, Xuzhou Medical University, Xuzhou 221004, China Division of Laboratory Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences,Guangzhou 510080, China
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Zhao YH, Lu MD, Liao JF, Yuan KX, Zhang XQ, Gu B. [Advances in the relationship between lung cancer and microbiota]. Zhonghua Yu Fang Yi Xue Za Zhi 2022; 56:1716-1722. [PMID: 36536556 DOI: 10.3760/cma.j.cn112150-20220124-00083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Interaction exists in lung cancer and microbiota. Lung microecological homeostasis can improve the immune tolerance, enhance immune suppression, and inhibit inflammatory responses, to reduce the lung cancer; while lung cancer can lead to pulmonary microecological imbalance, change the lung environment, and promote tumor cell proliferation. Therefore, modulating microbial flora and microecological immunotherapy may be a potential and preventive treatment for lung cancer, to restore tumor immunosuppression and improve patient survival. However, the individual differences in the lung microecology, because of different genetics, ethnic characteristics, and dietary habits, increasing the difficulty of precise diagnosis and treatment, which is also the current bottleneck in the application of microecological immunotherapy. Otherwise, the effectiveness of regulatory measures such as probiotics, prebiotics or antimicrobials is questionable. The research on microbial flora is still in its infancy, and further exploration is needed to form a standardized, effective, and precise treatment plan. So, standardized, effective, and precise microbial flora treatment strategies need to be further explored.
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Affiliation(s)
- Y H Zhao
- Division of Laboratory Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences,Guangzhou 510080, China
| | - M D Lu
- Division of Laboratory Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences,Guangzhou 510080, China
| | - J F Liao
- Division of Laboratory Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences,Guangzhou 510080, China
| | - K X Yuan
- Division of Laboratory Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences,Guangzhou 510080, China
| | - X Q Zhang
- Division of Laboratory Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences,Guangzhou 510080, China
| | - B Gu
- Division of Laboratory Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences,Guangzhou 510080, China
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Li S, Zeng Y, Tang C, Wang F, Gu B, Tang S. A red-emissive benzothiazole-based luminophore with ESIPT and AIE natures and its application for detecting and imaging hypochlorous acid. Spectrochim Acta A Mol Biomol Spectrosc 2022; 281:121601. [PMID: 35816864 DOI: 10.1016/j.saa.2022.121601] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 06/29/2022] [Accepted: 07/04/2022] [Indexed: 06/15/2023]
Abstract
A new "ESIPT + AIE" based dye of benzothiazole with red emission and a large Stokes shift was constructed by combining 2-(2'-hydroxyphenyl)benzothiazole as the ESIPT unit and α-cyanostilbene as the AIE unit. The compound BACN was found to be a ideal HClO chemosensor, and presented palpable fluorescence and colorimetric responses toward HClO via the HClO-trigged oxidation cleavage of the ethylene bridge activated by the electron withdrawing cyano group. BACN was capable of recognizing HClO rapidly (12 s) and sensitively under physiological conditions, with good selectivity over other biologically pertinent substances. Thanks to strong red emission (λem = 606 nm) and large Stokes shift (213 nm) resulted from the combination of ESIPT and AIE effects, it was successfully utilized for the recognition of exogenous and endogenous HClO in living HeLa cells.
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Affiliation(s)
- Siyun Li
- Key Laboratory of Chemical Sensing and Catalysis, Hengyang Key Laboratory of New Detection Technology and Biological Agents of Animal Microorganism, College of Chemistry and Materials Science, Hengyang Normal University, Hengyang 421008, PR China
| | - Ying Zeng
- Key Laboratory of Chemical Sensing and Catalysis, Hengyang Key Laboratory of New Detection Technology and Biological Agents of Animal Microorganism, College of Chemistry and Materials Science, Hengyang Normal University, Hengyang 421008, PR China
| | - Can Tang
- Key Laboratory of Chemical Sensing and Catalysis, Hengyang Key Laboratory of New Detection Technology and Biological Agents of Animal Microorganism, College of Chemistry and Materials Science, Hengyang Normal University, Hengyang 421008, PR China
| | - Feifei Wang
- Key Laboratory of Chemical Sensing and Catalysis, Hengyang Key Laboratory of New Detection Technology and Biological Agents of Animal Microorganism, College of Chemistry and Materials Science, Hengyang Normal University, Hengyang 421008, PR China
| | - Biao Gu
- Key Laboratory of Chemical Sensing and Catalysis, Hengyang Key Laboratory of New Detection Technology and Biological Agents of Animal Microorganism, College of Chemistry and Materials Science, Hengyang Normal University, Hengyang 421008, PR China.
| | - Siping Tang
- Key Laboratory of Chemical Sensing and Catalysis, Hengyang Key Laboratory of New Detection Technology and Biological Agents of Animal Microorganism, College of Chemistry and Materials Science, Hengyang Normal University, Hengyang 421008, PR China.
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Gu B, Liu M, Long J, Ye X, Xu Z, Shen Y. An AIE based fluorescent chemosensor for ratiometric detection of hypochlorous acid and its application. Spectrochim Acta A Mol Biomol Spectrosc 2022; 278:121290. [PMID: 35526440 DOI: 10.1016/j.saa.2022.121290] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Revised: 04/11/2022] [Accepted: 04/18/2022] [Indexed: 06/14/2023]
Abstract
Detecting and imaging intracellular hypochlorous acid (HClO) is of great importance owning to its prominent role in numerous pathological and physiological processes. In this contribution, a novel AIE-based fluorescent chemosensor has been developed by employing a benzothiazole derivative. The synthesized probe displayed remarkable ratiometric fluorescent response to HClO with a large emission shift (139 nm), resulting in naked-eye fluorescence changes from red to blue. Under the optimal conditions, this probe was capable of quantitatively detecting HClO within 10 s, and possessed good sensitivity and high selectivity toward HClO over other biologically relevant species. Moreover, it has been successfully utilized to image the exogenous and endogenous HClO in living cells through dual channels, and conveniently detect hypochlorous acid solution on test strips with better accuracy, demonstrating its potential for monitoring HClO in biological and environment fields.
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Affiliation(s)
- Biao Gu
- Hunan Provincial Engineering Research Center for Monitoring and Treatment of Heavy Metals Pollution in the Upper Reaches of Xiangjiang River, College of Chemistry and Materials Science, Hengyang Normal University, Hengyang 421008, PR China.
| | - Mengqin Liu
- Hunan Provincial Engineering Research Center for Monitoring and Treatment of Heavy Metals Pollution in the Upper Reaches of Xiangjiang River, College of Chemistry and Materials Science, Hengyang Normal University, Hengyang 421008, PR China
| | - Jiumei Long
- College of Life Sciences and Environment, Hengyang Normal University, Hengyang 421008, PR China
| | - Xinrong Ye
- Hunan Provincial Engineering Research Center for Monitoring and Treatment of Heavy Metals Pollution in the Upper Reaches of Xiangjiang River, College of Chemistry and Materials Science, Hengyang Normal University, Hengyang 421008, PR China
| | - Zhifeng Xu
- Hunan Provincial Engineering Research Center for Monitoring and Treatment of Heavy Metals Pollution in the Upper Reaches of Xiangjiang River, College of Chemistry and Materials Science, Hengyang Normal University, Hengyang 421008, PR China.
| | - Youming Shen
- College of Chemistry and Materials Engineering, Hunan University of Arts and Science, Changde 415000, PR China.
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Gu B, Kondic L, Cummings L. Network-based membrane filters: Influence of network and pore size variability on filtration performance. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.120668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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15
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Wang Q, Xie Z, Li C, Xu C, Ding C, Ju S, Chen J, Cui Z, Chen C, Gu B, Wei T, Zhao J. CRIF1 promotes the progression of non-small-cell lung cancer by SIRT3- mediated deacetylation of PYCR1. J Mol Histol 2022; 53:657-667. [PMID: 35716330 DOI: 10.1007/s10735-022-10075-9] [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: 10/13/2021] [Accepted: 04/27/2022] [Indexed: 10/18/2022]
Abstract
Lung cancer is the cancer with the highest mortality in the world. So further exploration of the pathogenesis of lung cancer is of great significance. In this study, the specific role and related mechanism of CRIF1 in non-small cell lung cancer (NSCLC) were explored in this research. TheRT-PCR, western blot and IHC assays were used to examine the expression level of CRIF1 in NSCLC tissue, tissue adjacent to carcinoma, NSCLC cell lines and human normal lung epithelial cells. Next, colony formation assay, Alamar blue Kit and EdU assays were employed to examine the proliferation of transfected A549 and NCI-H2009 cells. Measurement of mitochondrial permeability transition pore opening, ATP production and cellular oxygen consumption were used to evaluate the mitochondrial apoptosis of transfected NSCLC cells. Enzymatic activity assays for PYCR1, western blot and flow cytometry assays were used to explore the relationship between PYCR1 and CRIF1. The subcutaneous xenograft tumor mice model was established to explore the role of CRIF1 in vivo. Collectively, results revealed that CRIF1 was upregulated in NSCLC cells and tissues (p < 0.001). CRIF1 promoted proliferation of NSCLC cells (p < 0.001). CRIF1 inhibited mitochondrial apoptosis in NSCLC cells (p < 0.05). Moreover, CRIF1 promoted PYCR1 deacetylation and increased its activity through SIRT3 (p < 0.05). Deacetylation of PYCR1 reversed the antitumor effect of CRIF1 knockdown (p < 0.05). Finally, knockdown of CRIF1 inhibited the tumor growth of NSCLC in vivo (p < 0.05).This research found that CRIF1 promoted the progression of non-small-cell lung cancer by SIRT3- mediated deacetylation of PYCR1.
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Affiliation(s)
- Qi Wang
- Department of Thoracic Surgery, The First Affiliated Hospital of Soochow University, No. 899, Ping Hai Road, Suzhou, 215006, Jiangsu, China
- Department of Thoracic Surgery, The Affiliated Huai'an No.1 People's Hospital of Nanjing Medical University, Huai'an, 223300, Jiangsu, China
| | - Zhuolin Xie
- Department of Thoracic Surgery, The First Affiliated Hospital of Soochow University, No. 899, Ping Hai Road, Suzhou, 215006, Jiangsu, China
| | - Chang Li
- Department of Thoracic Surgery, The First Affiliated Hospital of Soochow University, No. 899, Ping Hai Road, Suzhou, 215006, Jiangsu, China
| | - Chun Xu
- Department of Thoracic Surgery, The First Affiliated Hospital of Soochow University, No. 899, Ping Hai Road, Suzhou, 215006, Jiangsu, China
| | - Cheng Ding
- Department of Thoracic Surgery, The First Affiliated Hospital of Soochow University, No. 899, Ping Hai Road, Suzhou, 215006, Jiangsu, China
| | - Sheng Ju
- Department of Thoracic Surgery, The First Affiliated Hospital of Soochow University, No. 899, Ping Hai Road, Suzhou, 215006, Jiangsu, China
| | - Jun Chen
- Department of Thoracic Surgery, The First Affiliated Hospital of Soochow University, No. 899, Ping Hai Road, Suzhou, 215006, Jiangsu, China
| | - Zihan Cui
- Department of Thoracic Surgery, The First Affiliated Hospital of Soochow University, No. 899, Ping Hai Road, Suzhou, 215006, Jiangsu, China
| | - Chen Chen
- Department of Thoracic Surgery, The First Affiliated Hospital of Soochow University, No. 899, Ping Hai Road, Suzhou, 215006, Jiangsu, China
- Department of Thoracic Surgery, The Affiliated Huai'an No.1 People's Hospital of Nanjing Medical University, Huai'an, 223300, Jiangsu, China
| | - Biao Gu
- Department of Thoracic Surgery, The First Affiliated Hospital of Soochow University, No. 899, Ping Hai Road, Suzhou, 215006, Jiangsu, China
- Department of Thoracic Surgery, The Affiliated Huai'an No.1 People's Hospital of Nanjing Medical University, Huai'an, 223300, Jiangsu, China
| | - Tengteng Wei
- Department of Thoracic Surgery, The First Affiliated Hospital of Soochow University, No. 899, Ping Hai Road, Suzhou, 215006, Jiangsu, China
- Department of Thoracic Surgery, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, 215000, Jiangsu, China
| | - Jun Zhao
- Department of Thoracic Surgery, The First Affiliated Hospital of Soochow University, No. 899, Ping Hai Road, Suzhou, 215006, Jiangsu, China.
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Gao X, Hu S, Liu Z, Zhu H, Yang J, Han Q, Fu Y, Miao J, Gu B, Liu X. Analysis of resistance risk and resistance-related point mutations in Cyt b of QioI fungicide ametoctradin in Phytophthora litchii. Pest Manag Sci 2022; 78:2921-2930. [PMID: 35419937 DOI: 10.1002/ps.6916] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2021] [Revised: 03/09/2022] [Accepted: 04/13/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND Litchi downy blight, caused by Phytophthora litchii, is one of the most important diseases of litchi. Ametoctradin, as the only QioI (quinone inside and outside inhibitor) fungicide, has been registered in China in 2019. However, the ametoctradin-resistance risk and molecular basis in Phytophthora litchii have not been reported. RESULTS In this study, the sensitivity profile of 144 Phytophthora litchii strains to ametoctradin was determined, with a mean median effective concentration (EC50 ) value of 0.1706 ± 0.091 μg mL-1 . Nine stable resistant Phytophthora litchii mutants [resistance factor (RF) > 400] were derived from sensitive isolates using fungicide adaption. The compound fitness index of three resistant-mutants (HN10-1-1, HN10-1-2 and HN10-2-1) was similar or higher than that of their parental isolates in vitro. All these ametoctradin-resistant mutants were sensitive to metalaxyl, dimethomorph, oxathiapiprolin and cyazofamid. Two point mutations, leading to the S33L and D228N changes in PlCyt b (cytochrome b) were found in ametoctradin-resistant mutants. Eight ametoctradin-resistant mutants containing S33L showed increased sensitivity to azoxystrobin and amisulbrom, and one mutant containing D228N exhibited increased sensitivity to cyazofamid. In vitro enzyme activity test showed that ametoctradin could not inhibit the activity of cytochrome bc1 complex with S33L and D228N point mutation. AS-PCR primers were designed based on the S33L change to detect the ametoctradin-resistant strains in the future. CONCLUSION These results suggest that Phytophthora litchii has a medium to high resistance risk to ametoctradin in the laboratory. Two changes, S33L and D228N, in PlCyt b are likely to be associated with the observed ametoctradin resistance. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Xuheng Gao
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling, China
| | - Shiping Hu
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling, China
| | - Zeqi Liu
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling, China
| | - Hongwei Zhu
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling, China
| | - Jikun Yang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling, China
| | - Qingyu Han
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling, China
| | - Yixin Fu
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling, China
| | - Jianqiang Miao
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling, China
| | - Biao Gu
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling, China
| | - Xili Liu
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling, China
- Department of Plant Pathology, College of Plant Protection, China Agricultural University, Beijing, China
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Wang F, Guo B, Guo X, Gu B, Shen Y, Long J. A rapidly responding and highly sensitive biosensor for pH-universal detection of ONOO− and its cellular imaging. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2022.113796] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Liu YH, Huang X, Li HZ, Gao YS, Gu SC, Yimin YM, Luo SY, Zhang ZW, Gu B, Zan T. [Clinical application of expanded internal mammary artery perforator flap combined with vascular supercharge in reconstruction of faciocervical scar]. Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi 2022; 38:313-320. [PMID: 35462508 DOI: 10.3760/cma.j.cn501120-20210928-00334] [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: 06/14/2023]
Abstract
Objective: To summarize the clinical experience of expanded internal mammary artery perforator (IMAP) flap combined with vascular supercharge in reconstruction of faciocervical scar. Methods: The retrospective observational study was conducted. From September 2012 to May 2021, 23 patients with postburn or posttraumatic faciocervical scars who met the inclusion criteria were admitted to Shanghai Ninth People's Hospital of Shanghai Jiao Tong University School of Medicine, including 18 males and 5 females, aged from 11 to 58 years, all of whom were reconstructed with expanded IMAP flaps. At the first stage, one or two skin and soft tissue expander (s) with appropriate rated capacity were implanted in the anterior chest area according to the location and size of the scars. The IMAP, thoracic branch of supraclavicular artery, and lateral thoracic artery were preserved during the operation. The skin and soft tissue expanders were inflated with normal saline after the operation. The flaps were transferred during the second stage. The dominant IMAP was determined preoperatively using color Doppler ultrasound (CDU) blood flow detector. The faciocervical scars were removed, forming wounds with areas of 9 cm×7 cm-28 cm×12 cm, and the perforators of superficial temporal artery and vein or facial artery and vein were preserved during the operation. The flaps were designed according to the area and size of the wounds after scar resection with the dominant IMAP as the pedicle. Single-pedicle IMAP flaps were used to repair small and medium-sized wounds. For larger defects, the blood perfusion areas of vessels in the anterior chest were evaluated by indocyanine green angiography (ICGA). In situations where the IMAP was insufficient to nourish the entire flap, double-pedicle flaps were designed by using the thoracic branch of supraclavicular artery or lateral thoracic artery for supercharging. Pedicled or free flap transfer was selected according to the distance between the donor areas and recipient areas. After transplantation of flaps, ICGA was conducted again to evaluate blood perfusion of the flaps. The donor sites of flaps were all closed by suturing directly. Statistics were recorded, including the number, rated capacity, normal saline injection volume, and expansion period of skin and soft tissue expanders, the location of the dominant IMAP, the total number of the flaps used, the number of flaps with different types of vascular pedicles, the flap area, the flap survival after the second stage surgery, the occurrence of common complications in the donor and recipient areas, and the condition of follow-up. Results: Totally 25 skin and soft tissue expanders were used in this group of patients, with rated capacity of 200-500 mL, normal saline injection volume of 855-2 055 mL, and expansion period of 4-16 months. The dominant IMAP was detected in the second intercostal space (20 sides) or the third intercostal space (5 sides) before surgery. A total of 25 expanded flaps were excised, including 2 pedicled IMAP flaps, 11 free IMAP flaps, 4 pedicled thoracic branch of supraclavicular artery+free IMAP flaps, and 8 free IMAP+lateral thoracic artery flaps, with flap areas of 10 cm×8 cm-30 cm×14 cm. After the second stage surgery, tip necrosis of flaps in three patients occurred, which healed after routine dressing changes; one patient developed arterial embolism and local torsion on the vascular pedicle at the anastomosis of IMAP and facial artery, and the blood supply recovered after thrombectomy and vascular re-anastomosis. Fourteen patients underwent flap thinning surgery in 1 month to 6 months after the second stage surgery. The follow-up for 4 months to 9 years showed that all patients had improved appearances of flaps and functions of face and neck and linear scar in the donor sites of flaps, and one female patient had obvious nipple displacement and bilateral breast asymmetry. Conclusions: The expanded IMAP flap is matched in color and texture with that of the face and neck, and its incision causes little damage to the chest donor sites. When combined with vascular supercharge, a double-pedicle flap can be designed flexibly to further enhance the blood supply and expand the flap incision area, which is a good choice for reconstruction of large faciocervical scar.
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Affiliation(s)
- Y H Liu
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - X Huang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - H Z Li
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - Y S Gao
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - S C Gu
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - Y M Yimin
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - S Y Luo
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - Z W Zhang
- Department of Plastic and Reconstructive Surgery, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - B Gu
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - T Zan
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
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Tang Q, Li P, Zhou Z, Lu Q, Gu B, Tang S, Zhang Y. An N-nitrosation reaction-based fluorescent probe for detecting nitric oxide in living cells and inflammatory zebrafish. Spectrochim Acta A Mol Biomol Spectrosc 2022; 270:120728. [PMID: 34979439 DOI: 10.1016/j.saa.2021.120728] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 11/19/2021] [Accepted: 12/07/2021] [Indexed: 06/14/2023]
Abstract
Nitric oxide (NO), an essential biological messenger molecule, participates in various physiological and pathological processes. The sensitive and specific detection of NO is of great significance for understanding the biological function of NO. Here, we synthesized a fluorescent probe (Rho-NO) for highly selective detection of NO both in vitro and in vivo. The high selectivity of Rho-NO is attributed to the fact that NO is easily replaced by electron donor amino group to form N-nitrosation products, causing rhodamine spiro ring open and fluorescence emit. Rho-NO showed a good linear response to NO (0-100 µM) with a low detection limit (0.06 µM). Importantly, it exhibited excellent specificity for NO detection in human serum and was also applied for imaging NO in living cells and inflammatory model of zebrafish. This work proves the potential of Rho-NO in pathological research and disease diagnosis.
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Affiliation(s)
- Qinghai Tang
- Hunan Key Laboratory for Conservation and Utilization of Biological Resources in the Nanyue Mountainous Region, College of Life Sciences and Environment, Hengyang Normal University, Hengyang 421008, China
| | - Peijuan Li
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China
| | - Zile Zhou
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China
| | - Qiujun Lu
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China
| | - Biao Gu
- Key Laboratory of Functional Organometallic Materials of College of Hunan Province, College of Chemistry and Materials Science, Hengyang Normal University, Hengyang 421008, China
| | - Siping Tang
- Key Laboratory of Functional Organometallic Materials of College of Hunan Province, College of Chemistry and Materials Science, Hengyang Normal University, Hengyang 421008, China.
| | - Youyu Zhang
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China.
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Li X, Gao X, Hu S, Hao X, Li G, Chen Y, Liu Z, Li Y, Miao J, Gu B, Liu X. Resistance to pydiflumetofen in Botrytis cinerea: risk assessment and detection of point mutations in sdh genes that confer resistance. Pest Manag Sci 2022; 78:1448-1456. [PMID: 34927349 DOI: 10.1002/ps.6762] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Revised: 12/01/2021] [Accepted: 12/19/2021] [Indexed: 06/14/2023]
Abstract
BACKGROUND Gray mold caused by Botrytis cinerea Pers. is one of the most significant airborne diseases. It can infest a wide range of crops, causing significant losses in yield and quality worldwide. Pydiflumetofen, a new generation succinate dehydrogenase inhibitor (SDHI), is currently being registered in China to control gray mold in a variety of crops. The baseline sensitivity, resistance risk, and resistance mechanism of Botrytis cinerea to pydiflumetofen were assessed in this study. RESULTS A total of 138 strains of B. cinerea from 10 different regions were tested for their sensitivity to pydiflumetofen, and the mean EC50 value was 0.0056 μg mL-1 . Eight mutants were obtained by fungicide adaption from five sensitive parental isolates, and the resistance factor (RF) ranged from 51 to 135. The mutants exhibited strong adaptive traits in conidial production, conidial germination, and pathogenicity. Positive cross-resistance was only observed between other SDHIs (i.e. boscalid, fluopyram, and isopyrazam). Two different types of pydiflumetofen-resistant mutants were identified: point mutation P225L in sdhB and double mutation G85A and I93V in sdhC. The in vivo control efficacy of pydiflumetofen on the resistant mutants carrying P225L in sdhB as well as G85A and I93V in sdhC was significantly decreased to 52.62% and 32.27%, respectively. CONCLUSION The fitness was significantly higher for all pydiflumetofen-resistant mutants than the corresponding parental. Two types of point mutations, sdhB-P225L and sdhC-G85A and I93V, might confer resistance to pydiflumetofen in B. cinerea. A precautionary resistance management strategy should be implemented. © 2021 Society of Chemical Industry.
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Affiliation(s)
- Xiong Li
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling, China
| | - Xuheng Gao
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling, China
| | - Shiping Hu
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling, China
| | - Xinchang Hao
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling, China
| | - Guixiang Li
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling, China
| | - Yue Chen
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling, China
| | - Zeqi Liu
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling, China
| | - Yiwen Li
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling, China
| | - Jianqiang Miao
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling, China
| | - Biao Gu
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling, China
| | - Xili Liu
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling, China
- Department of Plant Pathology, College of Plant Protection, China Agricultural University, Beijing, China
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21
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Gu B, Liu K, McKenzie C, MacGregor D, Corte C. Gastrointestinal: Autoimmune enteropathy associated with thymoma. J Gastroenterol Hepatol 2022; 37:606. [PMID: 34632628 DOI: 10.1111/jgh.15692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/04/2021] [Revised: 09/13/2021] [Accepted: 09/19/2021] [Indexed: 12/09/2022]
Affiliation(s)
- B Gu
- AW Morrow Gastroenterology and Liver Centre, Royal Prince Alfred Hospital, Sydney, New South Wales, Australia
| | - K Liu
- AW Morrow Gastroenterology and Liver Centre, Royal Prince Alfred Hospital, Sydney, New South Wales, Australia.,Faculty of Medicine and Health, University of Sydney, Sydney, New South Wales, Australia
| | - C McKenzie
- Faculty of Medicine and Health, University of Sydney, Sydney, New South Wales, Australia.,Department of Tissue Pathology and Diagnostic Oncology, NSW Health Pathology, Royal Prince Alfred Hospital, Sydney, New South Wales, Australia
| | - D MacGregor
- Department of Anatomical Pathology, The Royal Children's Hospital, Melbourne, Victoria, Australia
| | - C Corte
- AW Morrow Gastroenterology and Liver Centre, Royal Prince Alfred Hospital, Sydney, New South Wales, Australia.,Faculty of Medicine and Health, University of Sydney, Sydney, New South Wales, Australia
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22
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Zhou Z, Chen S, Huang Y, Gu B, Li J, Wu C, Yin P, Zhang Y, Li H. Simultaneous visualization and quantification of copper (II) ions in Alzheimer's disease by a near-infrared fluorescence probe. Biosens Bioelectron 2022; 198:113858. [PMID: 34871835 DOI: 10.1016/j.bios.2021.113858] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 11/10/2021] [Accepted: 11/29/2021] [Indexed: 11/25/2022]
Abstract
The abnormal accumulation of copper ions (Cu2+) is considered to be one of the pathological factors of Alzheimer's disease (AD), but the internal relationship between Cu2+ and AD progression is still not fully clear. In this work, a sensitive and selective near-infrared fluorescent copper ion probe (DDP-Cu) was designed for quantification and visualization of Cu2+ level in lysates, living cells, living zebrafish and brain tissues of drosophila and mice with AD. By using this probe, we demonstrated that the content of Cu2+ in the brains of AD mice and drosophila enhanced nearly 3.5-fold and 4-fold than that of normal mice and drosophila, respectively. More importantly, pathogenesis analysis revealed that elevated Cu2+ led to changes in factors closely associated with AD, such as the increasing of reactive oxygen species(ROS), the aggregation of amyloid-β protein (Aβ) and nerve cell cytotoxicity. These findings could promote the understanding of the roles between Cu2+ and AD.
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Affiliation(s)
- Zile Zhou
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, 410081, PR China
| | - Shengyou Chen
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, 410081, PR China
| | - Yinghui Huang
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, 410081, PR China
| | - Biao Gu
- College of Chemistry and Materials Science, Hengyang Normal University, Hengyang, 421008, PR China
| | - Jiaqi Li
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, 410081, PR China
| | - Cuiyan Wu
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, 410081, PR China
| | - Peng Yin
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, 410081, PR China
| | - Youyu Zhang
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, 410081, PR China.
| | - Haitao Li
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, 410081, PR China.
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23
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Dai C, Gu B, Tang SP, Deng PH, Liu B. Fluorescent porous organic cage with good water solubility for ratiometric sensing of gold(III) ion in aqueous solution. Anal Chim Acta 2022; 1192:339376. [DOI: 10.1016/j.aca.2021.339376] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 12/07/2021] [Accepted: 12/11/2021] [Indexed: 01/19/2023]
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24
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Peng Q, Waqas Younas M, Yang J, Zhu H, Miao J, Gu B, Liu X. Characterization of Prochloraz Resistance in Fusarium fujikuroi from Heilongjiang Province in China. Plant Dis 2022; 106:418-424. [PMID: 34353125 DOI: 10.1094/pdis-02-21-0372-re] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Prochloraz is widely used to control rice bakanae disease caused by Fusarium fujikuroi. The current study was aimed at monitoring the development of F. fujikuroi resistance to prochloraz in the Heilongjiang Province and analyzing the fitness of F. fujikuroi strains with different resistance levels. The results indicated that most of the 89 F. fujikuroi strains collected from the Heilongjiang Province were resistant to prochloraz, with resistance frequency reaching 92.1%. To assess the field resistance risk of prochloraz, 21 F. fujikuroi strains with different resistance levels were selected to investigate their biological characteristics and assess their fitness. Mycelial growth, sporulation, and germination rates were significantly different among the tested strains. However, when grouped into two subpopulations, no significant difference was tested between prochloraz-resistant and prochloraz-sensitive strains. Pathogenicity assays revealed that the disease severity index of prochloraz-resistant strains was higher than that of prochloraz-sensitive strains. Cross-resistance assays showed no cross-resistance between prochloraz and five other fungicides, namely phenamacril, ipconazole, tebuconazole, carbendazim, and fluopyram. Ffcyp51A gene overexpression was observed in the prochloraz-resistant F. fujikuroi strains after exposure to prochloraz. Collectively, these results indicated that F. fujikuroi resistance against prochloraz was severe. Furthermore, prochloraz-resistant strains were highly fit and could potentially become a dominant population in rice fields, consequently resulting in yield loss.
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Affiliation(s)
- Qin Peng
- State Key Laboratory of Crop Stress Biology for Arid Arears, College of Plant Protection, Northwest A&F University, Yangling 712100, Shaanxi, China
- Department of Plant Pathology, College of Plant Protection, China Agricultural University, Beijing 100193, China
| | - Muhammad Waqas Younas
- Department of Plant Pathology, College of Plant Protection, China Agricultural University, Beijing 100193, China
| | - Jikun Yang
- State Key Laboratory of Crop Stress Biology for Arid Arears, College of Plant Protection, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Hongwei Zhu
- State Key Laboratory of Crop Stress Biology for Arid Arears, College of Plant Protection, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Jianqiang Miao
- State Key Laboratory of Crop Stress Biology for Arid Arears, College of Plant Protection, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Biao Gu
- State Key Laboratory of Crop Stress Biology for Arid Arears, College of Plant Protection, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Xili Liu
- State Key Laboratory of Crop Stress Biology for Arid Arears, College of Plant Protection, Northwest A&F University, Yangling 712100, Shaanxi, China
- Department of Plant Pathology, College of Plant Protection, China Agricultural University, Beijing 100193, China
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25
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Wang J, Wu P, Wang J, Wang J, Gu B, Ge F, Chen XD. In vitro gastric digestion and emptying of cooked white and brown rice using a dynamic human stomach system. Food Structure 2022. [DOI: 10.1016/j.foostr.2021.100245] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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26
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Gu B, Wu C, Zhang C, He S, Tang S, Li H, Shen Y. A morpholino hydrazone-based lysosome-targeting fluorescent probe with fast response and high sensitivity for imaging peroxynitrite in living cells. Spectrochim Acta A Mol Biomol Spectrosc 2021; 262:120100. [PMID: 34186297 DOI: 10.1016/j.saa.2021.120100] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 06/05/2021] [Accepted: 06/20/2021] [Indexed: 06/13/2023]
Abstract
Peroxynitrite (ONOO-) plays important roles in many pathophysiological processes and its subcellular detection draws increasing attention. In this study, we designed and prepared a novel lysosome-targetable fluorescent probe (E)-2-(benzo[d]thiazol-2- yl)-4-methyl-6-((morpholinoimino)methyl)phenol (BMP) for selective detection of ONOO- in living systems by incorporating a reactive morpholino hydrazone as new ONOO- response site into a benzothiazole derivative as fluorophore. After reaction with ONOO-, an obvious fluorescence increase (83-fold) was observed accompanied with distinct dual colorimetric and fluorescence changes. Probe BMP displayed the merits of fast response (<3 s), ultrasensitivity (LOD = 6 nM) and high selectivity towards ONOO- over other physiological species including ROS/RNS. Most importantly, the probe was capable of imaging ONOO- in lysosomes of living cells with good cell permeation and negligible cytotoxicity. Therefore, this research provides an effective tool to study the functions of ONOO- in lysosomes.
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Affiliation(s)
- Biao Gu
- Key Laboratory of Functional Organometallic Materials of College of Hunan Province, College of Chemistry and Materials Science, Hengyang Normal University, Hengyang 421008, PR China
| | - Cuiyan Wu
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, PR China
| | - Chunxiang Zhang
- Hunan Provincial Key Laboratory of Water Treatment Functional Materials, College of Chemistry and Materials Engineering, Hunan University of Arts and Science, Changde 415000, PR China
| | - Shihui He
- Key Laboratory of Functional Organometallic Materials of College of Hunan Province, College of Chemistry and Materials Science, Hengyang Normal University, Hengyang 421008, PR China
| | - Siping Tang
- Key Laboratory of Functional Organometallic Materials of College of Hunan Province, College of Chemistry and Materials Science, Hengyang Normal University, Hengyang 421008, PR China.
| | - Haitao Li
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, PR China.
| | - Youming Shen
- Hunan Provincial Key Laboratory of Water Treatment Functional Materials, College of Chemistry and Materials Engineering, Hunan University of Arts and Science, Changde 415000, PR China.
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27
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Ma G, Dai W, Zhang J, Li Q, Gu B, Song Y, Yang X. ELK1‑mediated upregulation of lncRNA LBX2‑AS1 facilitates cell proliferation and invasion via regulating miR‑491‑5p/S100A11 axis in colorectal cancer. Int J Mol Med 2021; 48:138. [PMID: 34080639 PMCID: PMC8175069 DOI: 10.3892/ijmm.2021.4971] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Accepted: 04/29/2021] [Indexed: 12/11/2022] Open
Abstract
The aim of the present study was to investigate the role and regulatory mechanism of LBX2 antisense RNA 1 (LBX2-AS1) in colorectal cancer. Firstly, LBX2-AS1 expression was detected using reverse transcription-quantitative PCR in colorectal cancer tissues and cells, and its prognostic and diagnostic efficacy was assessed in a colorectal cancer cohort (n=145). Subcellular fractionation assay of LBX2-AS1 was performed. Secondly, the effects of LBX2-AS1 and microRNA (miR)-491-5p on colorectal cancer cell proliferation, apoptosis, migration and invasion were investigated by a series of functional assays. Thirdly, RNA immunoprecipitation, dual-luciferase reporter and gain and loss of function assays were carried out to analyze the interactions between ETS transcription factor ELK1 (ELK1) and LBX2-AS1, as well as LBX2-AS1, miR-491-5p and S100A11. The results showed that LBX2-AS1 was upregulated both in colorectal cancer tissues and cells, which was distributed in the cytoplasm and nucleus of colorectal cancer cells. Clinically, high LBX2-AS1 expression could be an independent prognostic factor for colorectal cancer. Furthermore, relative operating characteristic curve analysis showed that LBX2-AS1 was a sensitive diagnostic marker for colorectal cancer. Highly expressed ELK1, as a transcription factor, could bind to the two conserved sites in the promoter region of LBX2-AS1, thereby activating the transcription of LBX2-AS1. Silencing LBX2-AS1 markedly inhibited proliferative, migratory and invasive abilities of colorectal cancer cells. miR-491-5p expression was downregulated, while S100A11 expression was upregulated in colorectal cancer tissues and cells. Dual-luciferase reporter assays confirmed that LBX2-AS1 could block S100A11 degradation via competitively binding to miR-491-5p. Furthermore, LBX2-AS1 overexpression could notably reverse the inhibitory effect of miR-491-5p on proliferation and invasion of colorectal cancer cells. Taken together, LBX2-AS1 induced by transcription factor ELK1 may facilitate colorectal cancer cell proliferation and invasion via regulation of the miR-491-5p/S100A11 axis. Thus, LBX2-AS1 could be an underlying prognostic and diagnostic marker for colorectal cancer.
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Affiliation(s)
- Gang Ma
- Division of Gastroenterology, The Affiliated Huai'an No. 1 People's Hospital of Nanjing Medical University, Huai'an, Jiangsu 223300, P.R. China
| | - Weijie Dai
- Division of Gastroenterology, The Affiliated Huai'an No. 1 People's Hospital of Nanjing Medical University, Huai'an, Jiangsu 223300, P.R. China
| | - Juan Zhang
- Division of Gastroenterology, The Affiliated Huai'an No. 1 People's Hospital of Nanjing Medical University, Huai'an, Jiangsu 223300, P.R. China
| | - Qianjun Li
- Division of Gastroenterology, The Affiliated Huai'an No. 1 People's Hospital of Nanjing Medical University, Huai'an, Jiangsu 223300, P.R. China
| | - Biao Gu
- Department of Thoracic Surgery, The Affiliated Huai'an No. 1 People's Hospital of Nanjing Medical University, Huai'an, Jiangsu 223300, P.R. China
| | - Yaqi Song
- Department of Radiation Oncology, The Affiliated Huai'an No. 1 People's Hospital of Nanjing Medical University, Huai'an, Jiangsu 223300, P.R. China
| | - Xiaozhong Yang
- Division of Gastroenterology, The Affiliated Huai'an No. 1 People's Hospital of Nanjing Medical University, Huai'an, Jiangsu 223300, P.R. China
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Zhang C, Han L, Liu Q, Liu M, Gu B, Shen Y. A colorimetric and far-red fluorescent probe for rapid detection of bisulfite/sulfite in full water-soluble based on biquinolinium and its applications. Spectrochim Acta A Mol Biomol Spectrosc 2021; 253:119561. [PMID: 33618262 DOI: 10.1016/j.saa.2021.119561] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 01/18/2021] [Accepted: 01/27/2021] [Indexed: 06/12/2023]
Abstract
Bisulfite (HSO3-) and sulfite (SO32-) are involved in numerous physiological processes of living systems. However, high levels of these substances are often correlated to many diseases. Herein, we designed and synthesized a simple full water-soluble colorimetric and far-red fluorescent probe (E)-1-methyl-4-(2-(1-methylquinolin-1-ium-3-yl)vinyl)quinolin-1-ium iodide trifluoromethanesulfonate (DQ) for HSO3-/SO32- detection by coupling 1,4-dimethylquinolinium with 3-quinolinium carboxaldehyde for the first time. The probe DQ showed high selectivity for HSO3- detection via a 1,4-nucleophilic addition reaction with distinct color changes from colorless to purple-red and remarkable far-red fluorescence enhancement in pure aqueous solutions. Specifically, the probe displayed a fast response (<15 s) for bisulfite, which renders it suitable for real time detection of HSO3-. Under the optimized conditions, the far-red fluorescence intensity was linear to the concentrations of HSO3- in the range from 0 to 25 μM and the detection limit was as low as 0.11 μM. Additionally, the probe could be applied to sense HSO3- on paper strips, real sample including vermicelli and sugar and image HSO3- in living cells, which indicated that probe DQ has potential application in food samples and living systems.
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Affiliation(s)
- Chunxiang Zhang
- Province Engineering Research Center of Electroplating Wastewater Reuse Technology, Hunan Province Cooperative Innovation Center for the Construction & Development of Dongting Lake Ecological Economic Zone, Hunan Provincial Key Laboratory of Water Treatment Functional Materials, College of Chemistry and Materials Engineering, Hunan University of Arts and Science, Changde 415000, PR China
| | - Lujiao Han
- Key Laboratory of Functional Organometallic Materials of College of Hunan Province, College of Chemistry and Materials Science, Hengyang Normal University, Hengyang 421008, PR China
| | - Qingheng Liu
- Province Engineering Research Center of Electroplating Wastewater Reuse Technology, Hunan Province Cooperative Innovation Center for the Construction & Development of Dongting Lake Ecological Economic Zone, Hunan Provincial Key Laboratory of Water Treatment Functional Materials, College of Chemistry and Materials Engineering, Hunan University of Arts and Science, Changde 415000, PR China
| | - Mengqin Liu
- Key Laboratory of Functional Organometallic Materials of College of Hunan Province, College of Chemistry and Materials Science, Hengyang Normal University, Hengyang 421008, PR China
| | - Biao Gu
- Key Laboratory of Functional Organometallic Materials of College of Hunan Province, College of Chemistry and Materials Science, Hengyang Normal University, Hengyang 421008, PR China.
| | - Youming Shen
- Province Engineering Research Center of Electroplating Wastewater Reuse Technology, Hunan Province Cooperative Innovation Center for the Construction & Development of Dongting Lake Ecological Economic Zone, Hunan Provincial Key Laboratory of Water Treatment Functional Materials, College of Chemistry and Materials Engineering, Hunan University of Arts and Science, Changde 415000, PR China.
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29
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Shi S, Cheng B, Gu B, Sheng T, Tu J, Shao Y, Qi K, Zhou D. Evaluation of the probiotic and functional potential of Lactobacillus agilis 32 isolated from pig manure. Lett Appl Microbiol 2021; 73:9-19. [PMID: 33098675 DOI: 10.1111/lam.13422] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 10/20/2020] [Accepted: 10/20/2020] [Indexed: 12/16/2022]
Abstract
Escherichia coli is a symbiotic bacterium in humans and animals and an important pathogen of humans and animals. Prevention and suppression of E. coli infection is of great concern. In this study, we isolated a strain of Lactobacillus agilis 32 from pig manure and evaluated its biological characteristics, and found that its bacterial survival rate was 25% after 4 h of treatment at pH 2, and under the condition of 0·5% bile concentration, its survival rate exceeds 30%. In addition, L. agilis 32 has a cell surface hydrophobicity of 77·8%, and exhibits 67·1% auto-aggregation and 63·2% aggregation with Enterotoxigenic E. coli 10 (ETEC 10). FITC fluorescence labelling showed that the fluorescence intensity of cecum was significantly higher than that of duodenum, jejunum or colon (P < 0·05), but no significant difference from ileum. Lactobacillus agilis 32 bacterial culture and CFS showed average inhibition zone diameters of 14·2 and 15·4 mm respectively. Lactobacillus agilis 32 CFS treatment can significantly reduce the pathogenicity of ETEC 10. These results show that L. agilis 32 is an active and potential probiotic, and it has a good antibacterial effect on ETEC10, which provides basic research for probiotics to prevent and treat intestinal diarrhoea pathogen infection.
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Affiliation(s)
- S Shi
- Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, Anhui Agricultural University, Hefei, P. R. China.,College of Life Sciences, Anqing Normal University, Anqing, P. R. China
| | - B Cheng
- Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, Anhui Agricultural University, Hefei, P. R. China
| | - B Gu
- Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, Anhui Agricultural University, Hefei, P. R. China
| | - T Sheng
- Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, Anhui Agricultural University, Hefei, P. R. China
| | - J Tu
- Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, Anhui Agricultural University, Hefei, P. R. China
| | - Y Shao
- Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, Anhui Agricultural University, Hefei, P. R. China
| | - K Qi
- Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, Anhui Agricultural University, Hefei, P. R. China
| | - D Zhou
- College of Life Sciences, Anqing Normal University, Anqing, P. R. China
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Gu B, Liu N, Nie Y, Liu ZM, Liu YJ, Chen MY, Wu JF, Guan XD. [The prognostic value of myoglobin difference in sepsis related chronic critical illness]. Zhonghua Nei Ke Za Zhi 2021; 60:350-355. [PMID: 33765705 DOI: 10.3760/cma.j.cn112138-20200721-00691] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the predictive value of myoglobin (Mb) for the prognosis of sepsis related chronic critical illness (CCI). Methods: Retrospective study was conducted on septic patients with the length of ICU stay equal or greater than 14 days, and sepsis-related organ failure assessment (SOFA) score equal or greater than 2 on the 14th day in ICU in the First Department of Critical Care Medicine at the First Affiliated Hospital of Sun Yat-sen University from January 2017 to March 2020. Patients' clinical and laboratory data were collected on the 1st and 14th day in ICU. The survival on day 28 in ICU was recorded. According to the myoglobin levels on day 1 and day 14, all subjects were divided into myoglobin elevation group and decline group. Kaplan-Meier survival curve was used to compare the cumulative survival rate at day 28. Cox regression analysis was used to analyze the independent risk factors of mortality. Receiver operating characteristic (ROC) curve was used to analyze the prognostic value of myoglobin. Results: A total of 131 patients with sepsis related CCI were recruited, including 58 patients in the elevation group and 73 in the decline group. The Mb level in elevation group on day 1 was significantly lower than that in decline group [172.40(59.99, 430.53) μg/L vs. 413.60(184.40, 1 328.50) μg/L, Z=3.749, P=0.000], and the Mb level on day 14 was the opposite change in two groups [483.65(230.38, 1 471.75)μg/L in elevation group vs. 132.20(76.86, 274.35)μg/L in decline group, Z=5.595, P=0.000]. Kaplan-Meier survival curve analysis showed that the 28-day cumulative survival rate of the elevation group was significantly lower than that of decline group (χ²=7.051, P=0.008). Cox ratio regression analysis suggested that elevated myoglobin was an independent risk factor for 28-day mortality in septic patients with CCI (OR=2.534, 95%CI 1.212-5.295, P=0.013). ROC curve analysis suggested that the sensitivity of myoglobin elevation in predicting mortality related to CCI within 28 days was 64.5%, and the specificity was 32.0% with area under the curve(AUC) 0.661(95%CI 0.550-0.773,P=0.007) and Jorden Index was 0.325. Conclusion: Elevated myoglobin, an independent risk factor for mortality within 28 days in ICU, can predict the prognosis of sepsis related chronic critical illness.
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Affiliation(s)
- B Gu
- Department of Critical Care Medicine, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - N Liu
- Department of Critical Care Medicine, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - Y Nie
- Department of Critical Care Medicine, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - Z M Liu
- Department of Critical Care Medicine, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - Y J Liu
- Department of Critical Care Medicine, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - M Y Chen
- Department of Critical Care Medicine, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - J F Wu
- Department of Critical Care Medicine, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - X D Guan
- Department of Critical Care Medicine, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
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Gu B, Shao G, Gao W, Miao J, Wang Q, Liu X, Tyler BM. Transcriptional Variability Associated With CRISPR-Mediated Gene Replacements at the Phytophthora sojae Avr1b-1 Locus. Front Microbiol 2021; 12:645331. [PMID: 33815332 PMCID: PMC8012851 DOI: 10.3389/fmicb.2021.645331] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Accepted: 02/03/2021] [Indexed: 12/02/2022] Open
Abstract
Transcriptional plasticity enables oomycetes to rapidly adapt to environmental challenges including emerging host resistance. For example, the soybean pathogen Phytophthora sojae can overcome resistance conferred by the host resistance gene Rps1b through natural silencing of its corresponding effector gene, Avr1b-1. With the Phytophthora CRISPR/Cas9 genome editing system, it is possible to generate site-specific knock-out (KO) and knock-in (KI) mutants and to investigate the biological functions of target genes. In this study, the Avr1b-1 gene was deleted from the P. sojae genome using a homology-directed recombination strategy that replaced Avr1b-1 with a gene encoding the fluorescent protein mCherry. As expected, all selected KO transformants gained virulence on Rps1b plants, while infection of plants lacking Rps1b was not compromised. When a sgRNA-resistant version of Avr1b-1 was reintroduced into the Avr1b-1 locus of an Avr1b KO transformant, KI transformants with a well-transcribed Avr1b-1 gene were unable to infect Rps1b-containing soybeans. However, loss of expression of the incoming Avr1b-1 gene was frequently observed in KI transformants, which resulted in these transformants readily infecting Rps1b soybeans. A similar variability in the expression levels of the incoming gene was observed with AVI- or mCherry-tagged Avr1b-1 constructs. Our results suggest that Avr1b-1 may be unusually susceptible to transcriptional variation.
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Affiliation(s)
- Biao Gu
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant Protection, Northwest A&F University, Yangling, China
| | - Guangda Shao
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant Protection, Northwest A&F University, Yangling, China
| | - Wenxin Gao
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant Protection, Northwest A&F University, Yangling, China
| | - Jianqiang Miao
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant Protection, Northwest A&F University, Yangling, China
| | - Qinhu Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant Protection, Northwest A&F University, Yangling, China
| | - Xili Liu
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant Protection, Northwest A&F University, Yangling, China
| | - Brett M Tyler
- Department of Botany and Plant Pathology and Center for Genome Research and Biocomputing, Oregon State University, Corvallis, OR, United States
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Bao Z, Liu J, Hu Y, Li Y, Gu B, Zhu J, Zheng X, Wu M, Shen X, Alffenaar JW. Treatment outcomes for COVID-19: a prospective cohort study. Int J Tuberc Lung Dis 2021; 25:154-156. [PMID: 33656430 DOI: 10.5588/ijtld.20.0388] [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: 11/10/2022] Open
Affiliation(s)
- Z Bao
- Suzhou Fifth People's Hospital, Suzhou
| | - J Liu
- Suzhou Fifth People's Hospital, Suzhou
| | - Y Hu
- School of Public Health and Key Laboratory of Public Health Safety, Fudan University, Shanghai, China
| | - Y Li
- Suzhou Fifth People's Hospital, Suzhou
| | - B Gu
- Suzhou Fifth People's Hospital, Suzhou
| | - J Zhu
- School of Public Health and Key Laboratory of Public Health Safety, Fudan University, Shanghai, China
| | - X Zheng
- School of Public Health and Key Laboratory of Public Health Safety, Fudan University, Shanghai, China
| | - M Wu
- Suzhou Fifth People's Hospital, Suzhou
| | - X Shen
- Suzhou Fifth People's Hospital, Suzhou
| | - J W Alffenaar
- Faculty of Medicine and Health, School of Pharmacy, University of Sydney, Sydney, NSW, Westmead Hospital, Sydney, NSW, Marie Bashir Institute of Infectious Diseases and Biosecurity, University of Sydney, Sydney, NSW, Australia
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Ding H, Li L, Gu B, Ni Y, Chen S. MicroRNA-564 inhibits the progression of non-small cell lung cancer via targeting plexin A4. Exp Ther Med 2021; 21:358. [PMID: 33732331 PMCID: PMC7903456 DOI: 10.3892/etm.2021.9789] [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: 03/28/2020] [Accepted: 12/09/2020] [Indexed: 11/15/2022] Open
Abstract
Νon-small cell lung cancer (NSCLC) is the most frequently diagnosed type of cancer, and the most prevalent cause of cancer-associated mortality. The present study aimed to investigate whether microRNA (miR)-564 influences NSCLC progression by regulating NSCLC cell growth and migration, via targeting plexin A4. Therefore, the expression levels of miR-564 and plexin A4 were evaluated in NSCLC specimens or cells using reverse transcription-quantitative PCR. Furthermore, colony formation and Cell Counting Kit-8 assays were performed to determine the proliferative ability of NSCLC cells. The cell migration capacity was assessed using a Transwell assay. In addition, to examine the binding ability of miR-564 on the plexin A4 3'-untranslated region (3'UTR), a dual-luciferase reporter assay was performed. A mouse xenograft model was established to evaluate the effect of miR-564 knockdown on tumor growth in vivo, whereas the expression of plexin A4 and Ki67 in NSCLC tissues was detected using immunohistochemistry. Notably, miR-564 was downregulated in both NSCLC cell lines and tissues, while its overexpression, following transfection with miR-564 mimics, attenuated the proliferation and proliferation, migration and invasion of NSCLC cells. By contrast, silencing of miR-564 using a miR-564 inhibitor promoted NSCLC cell proliferation, migration and invasion. The luciferase assay revealed that miR-564 directly targeted the plexin A4 3'UTR in A549 and H460 cells. Additionally, the overexpression of plexin A4 rescued the effect of miR-564 on NSCLC cell proliferation, migration and invasion abilities. Further in vivo studies demonstrated that miR-564 knockdown promoted NSCLC growth, while miR-564 overexpression resulted in the opposite effect in nude mice. Overall, the results of the present study revealed that miR-564 promotes the proliferation and migration of NSCLC cells, both in vitro and in vivo, via targeting plexin A4. Therefore, miR-564 may be considered as a possible therapeutic target for NSCLC.
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Affiliation(s)
- Hui Ding
- Department of Thoracic Surgery, Huai'an First People's Hospital, The Affiliated Huaian No. 1 People's Hospital of Nanjing Medical University, Huai'an, Jiangsu 223300, P.R. China
| | - Liangpeng Li
- Department of Thoracic Surgery, Nanjing First Hospital, Nanjing Medical University, P.R. China
| | - Biao Gu
- Department of Thoracic Surgery, Huai'an First People's Hospital, The Affiliated Huaian No. 1 People's Hospital of Nanjing Medical University, Huai'an, Jiangsu 223300, P.R. China
| | - Yaojun Ni
- Department of Thoracic Surgery, Huai'an First People's Hospital, The Affiliated Huaian No. 1 People's Hospital of Nanjing Medical University, Huai'an, Jiangsu 223300, P.R. China
| | - Sheng Chen
- Department of Thoracic Surgery, Huai'an First People's Hospital, The Affiliated Huaian No. 1 People's Hospital of Nanjing Medical University, Huai'an, Jiangsu 223300, P.R. China
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Li Y, Wang ZC, Luo L, Mu CY, Xu J, Feng Q, Li SB, Gu B, Ma P, Lan T. The clinical value of the combined detection of sEGFR, CA125 and HE4 for epithelial ovarian cancer diagnosis. Eur Rev Med Pharmacol Sci 2021; 24:604-610. [PMID: 32016961 DOI: 10.26355/eurrev_202001_20036] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE This study aims to investigate the clinical value of combined detection of serum soluble epidermal growth factor receptor (sEGFR), cancer antigen 125 (CA125), and human epididymis protein 4 (HE4) in the diagnosis of epithelial ovarian cancer (EOC). PATIENTS AND METHODS From December 2017 to October 2018, the serum samples were obtained from the Affiliated Hospital of Xuzhou Medical University, with 30 patients as EOC group, 30 patients with benign ovarian neoplasms as benign group, and 17 healthy subjects as healthy group. Besides, among 30 EOC patients, 9 serum samples were obtained from pre-operative and post-operative EOC patients. The levels of serum sEGFR were detected by enzyme-linked immunosorbent assay (ELISA), while CA125 and HE4 were detected by enhanced chemiluminescence immunoassay (ECLIA). The diagnostic value was evaluated by receiver operating characteristic (ROC) curve analysis. RESULTS The levels of serum sEGFR, CA125, and HE4 in EOC group were significantly higher than those in benign group (p<0.05) and healthy group (p<0.05). When using a single tumor marker, the CA125 shows the highest sensitivity (93.30%) and HE4 shows the highest specificity (97.87%). The specificity of combined detection of serum sEGFR, CA125, and HE4 was 100%, which was significantly higher than that using a single tumor marker. The area under the ROC curve (AUC) of combined detection of serum sEGFR, CA125, and HE4 (0.965) was much higher than that of the single detection and higher than that of combined detection of CA125 and HE4 (0.940). Moreover, the level of serum sEGFR in post-operative EOC group was significantly lower than that in the corresponding pre-operative EOC group (p<0.05). CONCLUSIONS Our study shows that combined detection of serum sEGFR, CA125, and HE4 increases the specificity and efficiency in EOC diagnosis, indicating that sEGFR could be a potential biomarker for the diagnosis and prognosis of EOC.
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Affiliation(s)
- Y Li
- School of Medical Technology, Xuzhou Medical University, Xuzhou City, Jiangsu Province,
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Friesen L, Gu B, Kim C. A ligand-independent fast function of RARα promotes exit from metabolic quiescence upon T cell activation and controls T cell differentiation. Mucosal Immunol 2021; 14:100-112. [PMID: 32518366 PMCID: PMC7725911 DOI: 10.1038/s41385-020-0311-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Revised: 04/22/2020] [Accepted: 05/20/2020] [Indexed: 02/04/2023]
Abstract
Vitamin A metabolites play important roles in T cell activation and differentiation. A conventional model of RARα function relies upon retinoic acid (RA)-liganded RARα binding to specific DNA motifs to regulate gene expression in the nucleus. However, this genomic function fails to explain many of the biological responses of the RA-RARα axis on T cells. We generated a mouse line where RARα is over-expressed in T cells to probe RARα function with unprecedented sensitivity. Using this model together with mice specifically lacking RARα in T cells, we found that RARα is required for prompt exit from metabolic quiescence in resting T cells upon T cell activation. The positive effect of RARα on metabolism is mediated through PI3K and subsequent activation of the Akt and mTOR signaling pathway. This largely non-genomic function of RARα is surprisingly ligand-independent and controls the differentiation of effector and regulatory T cell subsets.
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Affiliation(s)
- L.R. Friesen
- Department of Pathology, University of Michigan School of Medicine, Ann Arbor, MI 48109,Mary H. Weiser Food Allergy Center, University of Michigan School of Medicine, Ann Arbor, MI 48109
| | - B. Gu
- Department of Comparative Pathobiology, Purdue University, West Lafayette, IN 47906
| | - C.H. Kim
- Department of Pathology, University of Michigan School of Medicine, Ann Arbor, MI 48109,Mary H. Weiser Food Allergy Center, University of Michigan School of Medicine, Ann Arbor, MI 48109,Rogel Cancer Center, University of Michigan School of Medicine, Ann Arbor, MI 48109
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Yang D, Kim H, Green O, Henke L, Gu B, Cai B, Cammin J, Li H. Co-60 MR Guided Adaptive Radiation Treatment Improves Target Coverage and Organs-At-Risk Sparing: Dosimetric Analysis of 1185 Adaptive Fractions and 5 Years’ Experience. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.718] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Gu B, Liu C, Wu Y, Zhang C, Shen Y, Liu M. Application of a Colorimetric and Near-Infrared Fluorescent Probe in Peroxynitrite Detection and Imaging in Living Cells. ACS Omega 2020; 5:27530-27535. [PMID: 33134716 PMCID: PMC7594142 DOI: 10.1021/acsomega.0c04073] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/23/2020] [Accepted: 09/29/2020] [Indexed: 06/11/2023]
Abstract
Peroxynitrite (ONOO-) plays a vital role in pathological and physiological processes, and an excessive amount of ONOO- causes various diseases. Developing a specific and sensitive method for the detection of ONOO- in biological systems is significant. Herein, we reported a novel colorimetric and near-infrared fluorescent probe (pyridin-4-ylmethyl (Z)-2-cyano-2-(3-((E)-4-hydroxystyryl)-5,5-dimethylcyclohex-2-en-1-ylidene)acetate diphenyl phosphinate group (AN-DP)) based on isophorone and phosphinate groups for ONOO- detection. The probe displayed excellent selectivity toward ONOO- compared with other relevant analytes. It showed a good linear relationship between the fluorescence intensity at 670 nm and ONOO- concentration (0-10 μM) with a low detection limit (53 nM). Importantly, the probe was a colorimetric and near-infrared fluorescent probe suitable for ONOO- detection. Furthermore, the probe could be used for imaging ONOO- in HepG2 cells.
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Affiliation(s)
- Biao Gu
- Key
Laboratory of Functional Organometallic Materials of College of Hunan
Province, College of Chemistry and Materials Science, Hengyang Normal University, Hengyang 421008, P.R. China
| | - Cunfei Liu
- Key
Laboratory of Functional Organometallic Materials of College of Hunan
Province, College of Chemistry and Materials Science, Hengyang Normal University, Hengyang 421008, P.R. China
| | - Yang Wu
- College
of Chemistry and Materials Engineering, Hunan University of Arts and Science, Changde 415000, P.R. China
| | - Chunxiang Zhang
- College
of Chemistry and Materials Engineering, Hunan University of Arts and Science, Changde 415000, P.R. China
| | - Youming Shen
- College
of Chemistry and Materials Engineering, Hunan University of Arts and Science, Changde 415000, P.R. China
| | - Mengqin Liu
- Key
Laboratory of Functional Organometallic Materials of College of Hunan
Province, College of Chemistry and Materials Science, Hengyang Normal University, Hengyang 421008, P.R. China
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Shen Y, Liu X, Zhang X, Zhang Y, Gu B. Employing an ICT-ESIPT strategy for ratiometric tracking of HClO based on sulfide oxidation reaction. Spectrochim Acta A Mol Biomol Spectrosc 2020; 239:118515. [PMID: 32505106 DOI: 10.1016/j.saa.2020.118515] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 05/14/2020] [Accepted: 05/19/2020] [Indexed: 06/11/2023]
Abstract
Hypochlorous acid (HOCl) acts as crucial roles in pathologica processes and relevant diseases. Thus, it is meaningful to explore a reliable method for monitoring HClO in biosystem. In this work, a ratiometric fluorescent probe 2-(benzo[d]thiazol-2-yl)-4-(methylthio)phenol (BTMSP) has been constructed for HClO by adopting ICT-ESIPT strategy. The probe possessed itself red fluorescence due to the electron-donating capability of sulfur atom and showed remarkable blue fluorescence response to HClO by oxidizes the sulfur atom to a sulfoxide. The ratiometric probe exhibited highly specific, rapid response and excellent sensitivity toward HClO as well as a low detection limit (4.2 × 10-7 M). Moreover, the ratiometric probe showed well-separated dual emission (450/580), and a large pseudo Stokes shift (190 nm). In addition, the probe was used for the imaging of HClO with satisfying results.
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Affiliation(s)
- Youming Shen
- Hunan Provincial Key Laboratory of Water Treatment Functional Materials, Hunan Province Engineering Research Center of Electroplating Wastewater Reuse Technology, Hunan Province Cooperative Innovation Center for The Construction & Development of Dongting Lake Ecological Economic Zone, College of Chemistry and Materials Engineering, Hunan University of Arts and Science, Changde 415000, PR China.
| | - Xin Liu
- Hunan Provincial Key Laboratory of Water Treatment Functional Materials, Hunan Province Engineering Research Center of Electroplating Wastewater Reuse Technology, Hunan Province Cooperative Innovation Center for The Construction & Development of Dongting Lake Ecological Economic Zone, College of Chemistry and Materials Engineering, Hunan University of Arts and Science, Changde 415000, PR China
| | - Xiangyang Zhang
- Hunan Provincial Key Laboratory of Water Treatment Functional Materials, Hunan Province Engineering Research Center of Electroplating Wastewater Reuse Technology, Hunan Province Cooperative Innovation Center for The Construction & Development of Dongting Lake Ecological Economic Zone, College of Chemistry and Materials Engineering, Hunan University of Arts and Science, Changde 415000, PR China
| | - Youyu Zhang
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, PR China.
| | - Biao Gu
- College of Chemistry and Materials Science, Hengyang Normal University, Hengyang 421008, PR China.
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Liu X, Liu X, Shen Y, Gu B. A Simple Water-Soluble ESIPT Fluorescent Probe for Fluoride Ion with Large Stokes Shift in Living Cells. ACS Omega 2020; 5:21684-21688. [PMID: 32905448 PMCID: PMC7469414 DOI: 10.1021/acsomega.0c02589] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Accepted: 08/06/2020] [Indexed: 05/12/2023]
Abstract
Developing an effective method for monitoring fluoride ion in biological samples is meaningful because fluoride ion plays a vital role in biological processes. In this contribution, a simple water-soluble ESIPT fluorescent probe 2-((4-((tert-butyldiphenylsilyl)oxy)-1,3-dioxoisoindolin-2-yl)methyl)-1-ethylpyridin-1-ium iodide (SPI) was constructed for monitoring fluoride ion. The probe SPI containing pyridinium salt group exhibited preeminent water solubility. The probe SPI introducing a trimethyldiphenylsilyl ether recognition group displayed excellent selectivity for fluoride ion over other biologically relevant species. Additionally, the probe SPI exhibited a fast response for a fluoride ion, suggesting that it could provide real-time fluoride ion detection. Importantly, the probe could detect fluoride ion with a linear range of 0-70.0 × 10-6 M and a low detection limit of 1.16 × 10-6 M. Furthermore, probe SPI could detect fluoride ion with a large Stokes shift (98 nm), which was attributed to ESIPT fluorescence sensing process. At last, probe SPI was successfully employed to monitor fluoride ion in living cells.
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Affiliation(s)
- Xu Liu
- Hunan
Province Engineering Research Center of Electroplating Wastewater
Reuse Technology, Hunan Provincial Key Laboratory of Water Treatment
Functional Materials, Hunan Province Cooperative Innovation Center
for The Construction & Development of Dongting Lake Ecological
Economic Zone, College of Chemistry and Materials Engineering, Hunan University of Arts and Science, Changde 415000, P. R. China
| | - Xin Liu
- Hunan
Province Engineering Research Center of Electroplating Wastewater
Reuse Technology, Hunan Provincial Key Laboratory of Water Treatment
Functional Materials, Hunan Province Cooperative Innovation Center
for The Construction & Development of Dongting Lake Ecological
Economic Zone, College of Chemistry and Materials Engineering, Hunan University of Arts and Science, Changde 415000, P. R. China
| | - Youming Shen
- Hunan
Province Engineering Research Center of Electroplating Wastewater
Reuse Technology, Hunan Provincial Key Laboratory of Water Treatment
Functional Materials, Hunan Province Cooperative Innovation Center
for The Construction & Development of Dongting Lake Ecological
Economic Zone, College of Chemistry and Materials Engineering, Hunan University of Arts and Science, Changde 415000, P. R. China
| | - Biao Gu
- Key
Laboratory of Functional Organometallic Materials of College of Hunan
Province, College of Chemistry and Materials Science, Hengyang Normal University, Hengyang 421008, P. R. China
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40
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Bao Z, Gu B, Liu J, Zhu J, Alffenaar JW, Hu Y, Shen X. Successful treatment of patients severely ill with COVID-19. Int J Tuberc Lung Dis 2020; 24:650-653. [PMID: 32553001 DOI: 10.5588/ijtld.20.0232] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- Z Bao
- The Fifth People's Hospital of Suzhou, Infectious Disease Hospital Affiliated to Soochow University, Suzhou, China
| | - B Gu
- The Fifth People's Hospital of Suzhou, Infectious Disease Hospital Affiliated to Soochow University, Suzhou, China
| | - J Liu
- The Fifth People's Hospital of Suzhou, Infectious Disease Hospital Affiliated to Soochow University, Suzhou, China
| | - J Zhu
- School of Public Health and Key Laboratory of Public Health Safety, Fudan University, Shanghai, China
| | - J-W Alffenaar
- Faculty of Medicine and Health, School of Pharmacy, University of Sydney, Sydney, NSW, Australia, Westmead Hospital, Sydney, NSW, Australia, Marie Bashir Institute of Infectious Diseases and Biosecurity, University of Sydney, Sydney, NSW, Australia, ,
| | - Y Hu
- School of Public Health and Key Laboratory of Public Health Safety, Fudan University, Shanghai, China
| | - X Shen
- The Fifth People's Hospital of Suzhou, Infectious Disease Hospital Affiliated to Soochow University, Suzhou, China
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Li Z, Wu Y, Shen Y, Gu B. Simple NIR-Emitting ESIPT Fluorescent Probe for Thiophenol with a Remarkable Stokes Shift and Its Application. ACS Omega 2020; 5:10808-10814. [PMID: 32455201 PMCID: PMC7240823 DOI: 10.1021/acsomega.0c00389] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Accepted: 04/23/2020] [Indexed: 05/08/2023]
Abstract
Thiophenol as a highly toxic compound can harm the environment and living organisms and thus demands effective detection. In this work, we presented a near-infrared fluorescent probe (DAPH-DNP) for detecting thiophenol according to the ESIPT mechanism using 2,4-dinitrophenyl group as a recognition unit. This probe displayed specificity toward thiophenol over other related analytes. Meanwhile, there was good linearity between the relative fluorescence intensity of DAPH-DNP and the concentration of thiophenol in the range of 0-80 μM. This probe also showed a low detection limit of 3.8 × 10-8 and a marked Stokes shift (192 nm). Further, this probe could be used for monitoring thiophenol in environmental water samples and imaging thiophenol in living cells, which indicated that this probe had a real application in the environment and living organisms.
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Affiliation(s)
- Zhiying Li
- Hunan
Province Engineering Research Center of Electroplating Wastewater
Reuse Technology, Hunan Provincial Key Laboratory of Water Treatment
Functional Materials, Hunan Province Cooperative Innovation Center
for The Construction & Development of Dongting Lake Ecological
Economic ZoneCollege of Chemistry and Materials Engineering, Hunan University of Arts and Science, Changde 415000, P. R. China
| | - Yang Wu
- Hunan
Province Engineering Research Center of Electroplating Wastewater
Reuse Technology, Hunan Provincial Key Laboratory of Water Treatment
Functional Materials, Hunan Province Cooperative Innovation Center
for The Construction & Development of Dongting Lake Ecological
Economic ZoneCollege of Chemistry and Materials Engineering, Hunan University of Arts and Science, Changde 415000, P. R. China
| | - Youming Shen
- Hunan
Province Engineering Research Center of Electroplating Wastewater
Reuse Technology, Hunan Provincial Key Laboratory of Water Treatment
Functional Materials, Hunan Province Cooperative Innovation Center
for The Construction & Development of Dongting Lake Ecological
Economic ZoneCollege of Chemistry and Materials Engineering, Hunan University of Arts and Science, Changde 415000, P. R. China
| | - Biao Gu
- Key
Laboratory of Functional Organometallic Materials of College of Hunan
Province, College of Chemistry and Materials Science, Hengyang Normal University, Hengyang 421008, P. R. China
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Tang DR, Li CL, Xu KP, Wu QQ, Chen QY, Lv JJ, Ji J, Zang B, Chen C, Gu B, Zhao JQ. Pigment Epithelium-Derived Factor Promotes the Growth and Migration of Human Esophageal Squamous Cell Carcinoma. Front Oncol 2020; 9:1520. [PMID: 32010619 PMCID: PMC6978803 DOI: 10.3389/fonc.2019.01520] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Accepted: 12/17/2019] [Indexed: 11/13/2022] Open
Abstract
Pigment epithelium-derived factor (PEDF) is an oncogene found in various types of cancers. However, how PEDF affects the development of human esophageal squamous cell carcinoma (ESCC) is unknown. This study investigates the role of PEDF in ESCC cell proliferation, migration, and cell cycle both in vitro and in vivo. The PEDF expression was examined in patient tumor samples and ESCC cell lines. Short hairpin RNA technology was used to inhibit the PEDF expression in ESCC EC9706 and KYSE150 cells. In vitro cell proliferation and migration assays were performed. The effects of PEDF on tumor growth and progression were examined in vivo in murine subcutaneous xenograft tumor models. It was found that PEDF was overexpressed in esophageal cancer cells and patient tumor tissues compared to normal control samples. PEDF enhanced cell cycle progression and inhibited cell apoptosis. Knock down of PEDF inhibited esophageal cell proliferation and migration in vitro. Moreover, Inhibition of PEDF significantly reduced tumor growth and tumor size in vivo. These results indicate that PEDF induce tumorigenesis in ESCC and can be a potential therapeutic target for cancer treatment.
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Affiliation(s)
- De-Rong Tang
- Department of Thoracic Surgery, The Affiliated Huaian No.1 People's Hospital of Nanjing Medical University, Huai'an, China
| | - Cheng-Lin Li
- Department of Thoracic Surgery, The Affiliated Huaian No.1 People's Hospital of Nanjing Medical University, Huai'an, China
| | - Ke-Ping Xu
- Department of Thoracic Surgery, The Affiliated Huaian No.1 People's Hospital of Nanjing Medical University, Huai'an, China
| | - Qing-Quan Wu
- Department of Thoracic Surgery, The Affiliated Huaian No.1 People's Hospital of Nanjing Medical University, Huai'an, China
| | - Qi-You Chen
- Department of Thoracic Surgery, The Affiliated Huaian No.1 People's Hospital of Nanjing Medical University, Huai'an, China
| | - Jun-Jie Lv
- Department of Thoracic Surgery, The Affiliated Huaian No.1 People's Hospital of Nanjing Medical University, Huai'an, China
| | - Jian Ji
- Department of Thoracic Surgery, The Affiliated Huaian No.1 People's Hospital of Nanjing Medical University, Huai'an, China
| | - Bao Zang
- Department of Thoracic Surgery, The Affiliated Huaian No.1 People's Hospital of Nanjing Medical University, Huai'an, China
| | - Chen Chen
- Department of Thoracic Surgery, The Affiliated Huaian No.1 People's Hospital of Nanjing Medical University, Huai'an, China
| | - Biao Gu
- Department of Thoracic Surgery, The Affiliated Huaian No.1 People's Hospital of Nanjing Medical University, Huai'an, China
| | - Jian-Qiang Zhao
- Department of Thoracic Surgery, The Affiliated Huaian No.1 People's Hospital of Nanjing Medical University, Huai'an, China
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Shen Y, Gu B, Liu X, Tang Y, Li H. A Benzothiazole-Based Ratiometric Fluorescent Probe for Highly Selective Detection of Homocysteine and Its Bioimaging Application. CHINESE J ORG CHEM 2020. [DOI: 10.6023/cjoc202004009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Tang W, Dai Y, Gu B, Liu M, Yi Z, Li Z, Zhang Z, He H, Zeng R. A near infrared fluorescent probe based on ICT for monitoring mitophagy in living cells. Analyst 2020; 145:1427-1432. [DOI: 10.1039/c9an02053e] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Mitophagy, the process in which cells degrade dysfunctional organelles and recycle their nutrient substances by lysosomes, plays a vital role in cell metabolism and physiology.
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Affiliation(s)
- Wenqing Tang
- School of Chemical Engineering
- Xiangtan University
- Xiangtan
- People's Republic of China
- Key Laboratory of Functional Organometallic Materials of College of Hunan Province
| | - Youzhi Dai
- College of Environmental and Resources
- Xiangtan University
- Xiangtan
- People's Republic of China
- Hunan 2011 Collaborative Innovation Center of Chemical Engineering & Technology with Environmental Benignity and Effective Resource Utilization
| | - Biao Gu
- Key Laboratory of Functional Organometallic Materials of College of Hunan Province
- College of Chemistry and Material Science
- Hengyang Normal University
- Hengyang
- People's Republic of China
| | - Mengqin Liu
- Key Laboratory of Functional Organometallic Materials of College of Hunan Province
- College of Chemistry and Material Science
- Hengyang Normal University
- Hengyang
- People's Republic of China
| | - Zhengji Yi
- Key Laboratory of Functional Organometallic Materials of College of Hunan Province
- College of Chemistry and Material Science
- Hengyang Normal University
- Hengyang
- People's Republic of China
| | - Zhongliang Li
- School of Chemical Engineering
- Xiangtan University
- Xiangtan
- People's Republic of China
| | - Zhimin Zhang
- Key Laboratory of Functional Organometallic Materials of College of Hunan Province
- College of Chemistry and Material Science
- Hengyang Normal University
- Hengyang
- People's Republic of China
| | - Huiyan He
- Key Laboratory of Functional Organometallic Materials of College of Hunan Province
- College of Chemistry and Material Science
- Hengyang Normal University
- Hengyang
- People's Republic of China
| | - Rongying Zeng
- Key Laboratory of Functional Organometallic Materials of College of Hunan Province
- College of Chemistry and Material Science
- Hengyang Normal University
- Hengyang
- People's Republic of China
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45
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Wu C, Xu H, Li Y, Xie R, Li P, Pang X, Zhou Z, Gu B, Li H, Zhang Y. An ESIPT-based fluorescent probe for the detection of phosgene in the solution and gas phases. Talanta 2019; 200:78-83. [PMID: 31036228 DOI: 10.1016/j.talanta.2019.03.003] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [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: 12/19/2018] [Revised: 02/26/2019] [Accepted: 03/01/2019] [Indexed: 12/30/2022]
Abstract
Phosgene is a highly toxic gas that poses a serious threat to public health and safety. Herein, we describe the preparation of a ratiometric fluorescence probe (Pi) bearing hydroxyl and imidazole moieties as recognition sites, and employ it for the excited-state intramolecular proton transfer-based (ESIPT-based) detection of phosgene. It is the first time that hydroxyl and imidazole have been exploited as recognition sites for phosgene. In the presence of phosgene, Pi undergoes sequential nucleophilic substitution and cyclization reactions that facilitate a rapid response, high selectivity, and excellent sensitivity (detection limit = 0.14 μM). The sensing mechanism was verified by 1H NMR spectroscopy and high-resolution mass spectrometry. Furthermore, we fabricated a fluorescent test strip (FTS-Pi) for the detection of phosgene in the gas phase that undergoes a fluorescence color change, from green to blue, under 365 nm UV light in the presence of phosgene, which is easily observed with the naked eye.
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Affiliation(s)
- Cuiyan Wu
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, PR China
| | - Hai Xu
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, PR China
| | - Yaqian Li
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, PR China
| | - Ruihua Xie
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, PR China
| | - Peijuan Li
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, PR China; Key Laboratory of Functional Organometallic Materials of College of Hunan Province, College of Chemistry and Materials Science, Hengyang Normal University, Hengyang 421008, PR China
| | - Xiao Pang
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, PR China
| | - Zile Zhou
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, PR China
| | - Biao Gu
- Key Laboratory of Functional Organometallic Materials of College of Hunan Province, College of Chemistry and Materials Science, Hengyang Normal University, Hengyang 421008, PR China
| | - Haitao Li
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, PR China.
| | - Youyu Zhang
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, PR China
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46
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Han W, Chen BJ, Gu B, Zhao GQ, Yu S, Wang XC, Liu QQ, Deng Z, Li WM, Zhao JF, Cao LP, Peng Y, Shen X, Zhu XH, Yu RC, Maekawa S, Uemura YJ, Jin CQ. Li(Cd,Mn)P: a new cadmium based diluted ferromagnetic semiconductor with independent spin & charge doping. Sci Rep 2019; 9:7490. [PMID: 31097727 PMCID: PMC6522530 DOI: 10.1038/s41598-019-43754-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Accepted: 12/13/2018] [Indexed: 11/09/2022] Open
Abstract
We report a new diluted ferromagnetic semiconductor Li1+y(Cd,Mn)P, wherein carrier is doped via excess Li while spin is doped by isovalence substitution of Mn2+ into Cd2+. The extended Cd 4d-orbitals lead to more itinerant characters of Li1+y(Cd,Mn)P than that of analogous Li1+y(Zn,Mn)P. A higher Curie temperature of 45 K than that for Li1+y(Zn,Mn)P is obtained in Li1+y(Cd,Mn)P polycrystalline samples by Arrott plot technique. The p-type carriers are determined by Hall effect measurements. The first principle calculations and X-ray diffraction measurements indicate that occupation of excess Li is at Cd sites rather than the interstitial site. Consequently holes are doped by excess Li substitution. More interestingly Li1+y(Cd,Mn)P shows a very low coercive field (<100 Oe) and giant negative magnetoresistance (~80%) in ferromagnetic state that will benefit potential spintronics applications.
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Affiliation(s)
- W Han
- Beijing National Laboratory for Condensed Matter Physics, and Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China.,School of Physics, University of Chinese Academy of Sciences, Beijing, 100190, China.,Department of Physics and Electronic Engineering, Hebei Normal University for Nationalities, Chengde, 067000, China
| | - B J Chen
- Beijing National Laboratory for Condensed Matter Physics, and Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China.,School of Physics, University of Chinese Academy of Sciences, Beijing, 100190, China
| | - B Gu
- Kavli Institute for Theoretical Sciences & CAS Center for Excellence in Topological Quantum Computation, University of Chinese Academy of Sciences, Beijing, 100190, China.,Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, 319-1195, Japan
| | - G Q Zhao
- Beijing National Laboratory for Condensed Matter Physics, and Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China.,School of Physics, University of Chinese Academy of Sciences, Beijing, 100190, China
| | - S Yu
- Beijing National Laboratory for Condensed Matter Physics, and Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China.,School of Physics, University of Chinese Academy of Sciences, Beijing, 100190, China
| | - X C Wang
- Beijing National Laboratory for Condensed Matter Physics, and Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China.,School of Physics, University of Chinese Academy of Sciences, Beijing, 100190, China
| | - Q Q Liu
- Beijing National Laboratory for Condensed Matter Physics, and Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China.,School of Physics, University of Chinese Academy of Sciences, Beijing, 100190, China
| | - Z Deng
- Beijing National Laboratory for Condensed Matter Physics, and Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China. .,School of Physics, University of Chinese Academy of Sciences, Beijing, 100190, China.
| | - W M Li
- Beijing National Laboratory for Condensed Matter Physics, and Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China.,School of Physics, University of Chinese Academy of Sciences, Beijing, 100190, China
| | - J F Zhao
- Beijing National Laboratory for Condensed Matter Physics, and Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China.,School of Physics, University of Chinese Academy of Sciences, Beijing, 100190, China
| | - L P Cao
- Beijing National Laboratory for Condensed Matter Physics, and Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China.,School of Physics, University of Chinese Academy of Sciences, Beijing, 100190, China
| | - Y Peng
- Beijing National Laboratory for Condensed Matter Physics, and Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China.,Department of Materials Science & Engineering, Sichuan University, Chengdu, China
| | - X Shen
- Beijing National Laboratory for Condensed Matter Physics, and Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
| | - X H Zhu
- Department of Materials Science & Engineering, Sichuan University, Chengdu, China
| | - R C Yu
- Beijing National Laboratory for Condensed Matter Physics, and Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
| | - S Maekawa
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, 319-1195, Japan
| | - Y J Uemura
- Department of Physics, Columbia University, New York, New York, 10027, USA
| | - C Q Jin
- Beijing National Laboratory for Condensed Matter Physics, and Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China. .,School of Physics, University of Chinese Academy of Sciences, Beijing, 100190, China. .,Songshan Lake Materials Laboratory, Dongguan, Guangdong, 523808, China.
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47
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Gu B, Wang J, Song Y, Wang Q, Wu Q. Retracted: The prognosis analysis of epidermal growth factor receptor tyrosine kinase inhibitor targeted treatment combined with chemotherapy in smokers with nonsmall cell lung cancer. J Cell Biochem 2019; 120:8798. [PMID: 30368879 DOI: 10.1002/jcb.27811] [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] [Received: 08/27/2018] [Accepted: 09/12/2018] [Indexed: 02/02/2023]
Affiliation(s)
- Biao Gu
- Department of Thoracic Surgery, The Affiliated Huai'an No.1 People's Hospital of Nanjing Medical University, Huai'an, Jiangsu, China
| | - Jipeng Wang
- Department of Respiratory Medicine, The Affiliated Huaian No.1 People´s Hospital of Nanjing Medical University, Huai'an, Jiangsu, China
| | - Yaqi Song
- Department of Radiation Oncology, The Affiliated Huaian No.1 People's Hospital of Nanjing Medical University, Huai'an, Jiangsu, China
| | - Qi Wang
- Department of Thoracic Surgery, The Affiliated Huai'an No.1 People's Hospital of Nanjing Medical University, Huai'an, Jiangsu, China
| | - Qingquan Wu
- Department of Thoracic Surgery, The Affiliated Huai'an No.1 People's Hospital of Nanjing Medical University, Huai'an, Jiangsu, China
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48
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Gu B, Wang J, Song Y, Wang Q, Wu Q. microRNA-383 regulates cell viability and apoptosis by mediating Wnt/β-catenin signaling pathway in non-small cell lung cancer. J Cell Biochem 2019; 120:7918-7926. [PMID: 30426539 DOI: 10.1002/jcb.28069] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [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: 09/20/2018] [Accepted: 10/22/2018] [Indexed: 01/24/2023]
Abstract
The aim of this study was to investigate the roles of microRNA-383 (miRNA-383) in progression of non-small cell lung cancer (NSCLC) and the potential mechanism. The expressions of miR-383 and Wnt1 protein were detected in lung cancer tissues and cells by quantitative real-time polymerase chain reaction (qRT-PCR) and Western blot analysis. After the transfection of miR-383 mimics, si-Wnt1 or miR-383+Wnt1, the viability and apoptosis of NSCLC cells were detected by cell counting kit-8 and terminal deoxynucleotidyl transferase-mediated dUTP nick-end labeling, respectively. The interaction between miR-383 and Wnt1 was investigated by luciferase activity and Western blot analysis. Cells stably transfected with miR-383 mimics were inoculated into the right axillary of nude mice by subcutaneous injection. The tumor volume and weight were measured, and the expressions of miR-383, Wnt1, β-catenin, and cyclin D1 were detected by qRT-PCR and Western blot analysis. The expression of miR-383 was significantly decreased, and the level of Wnt1 was significantly increased (P < 0.05) in lung cancer tissues and cells. Upregulation of miR-383 or inhibition of Wnt1 expression inhibited the cell viability and induce apoptosis in NSCLC cells. Moreover, Wnt1 was the target gene of miR-383, and its overexpression weakened the regulatory effect of miR-383 on cell viability and apoptosis in NSCLC cells. Besides, the addition of miR-383 decreased the tumor volume and size and inhibited the expressions of Wnt1, β-catenin, and cyclin D1 at the protein level in nude mice. Collectively, miR-383 induced apoptosis and inhibited cell viability as well as tumorigenic capacity in nude mice via regulating the Wnt/β-catenin signaling pathway.
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Affiliation(s)
- Biao Gu
- Department of Thoracic Surgery, The Affiliated Huai'an No.1 People's Hospital of Nanjing Medical University, Huai'an, Jiangsu, China
| | - Jipeng Wang
- Department of Respiratory Medicine, The Affiliated Huaian No.1 People's Hospital of Nanjing Medical University, Huai'an, Jiangsu, China
| | - Yaqi Song
- Department of Radiation Oncology, The Affiliated Huaian No.1 People's Hospital of Nanjing Medical University, Huai'an, Jiangsu, China
| | - Qi Wang
- Department of Thoracic Surgery, The Affiliated Huai'an No.1 People's Hospital of Nanjing Medical University, Huai'an, Jiangsu, China
| | - Qingquan Wu
- Department of Thoracic Surgery, The Affiliated Huai'an No.1 People's Hospital of Nanjing Medical University, Huai'an, Jiangsu, China
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49
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Huang G, Liu Z, Gu B, Zhao H, Jia J, Fan G, Meng Y, Du Y, Shan W. An RXLR effector secreted by Phytophthora parasitica is a virulence factor and triggers cell death in various plants. Mol Plant Pathol 2019; 20:356-371. [PMID: 30320960 PMCID: PMC6637884 DOI: 10.1111/mpp.12760] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [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: 05/17/2023]
Abstract
RXLR effectors encoded by Phytophthora species play a central role in pathogen-plant interactions. An understanding of the biological functions of RXLR effectors is conducive to the illumination of the pathogenic mechanisms and the development of disease control strategies. However, the virulence function of Phytophthora parasitica RXLR effectors is poorly understood. Here, we describe the identification of a P. parasitica RXLR effector gene, PPTG00121 (PpE4), which is highly transcribed during the early stages of infection. Live cell imaging of P. parasitica transformants expressing a full-length PpE4 (E4FL)-mCherry protein indicated that PpE4 is secreted and accumulates around haustoria during plant infection. Silencing of PpE4 in P. parasitica resulted in significantly reduced virulence on Nicotiana benthamiana. Transient expression of PpE4 in N. benthamiana in turn restored the pathogenicity of the PpE4-silenced lines. Furthermore, the expression of PpE4 in both N. benthamiana and Arabidopsis thaliana consistently enhanced plant susceptibility to P. parasitica. These results indicate that PpE4 contributes to pathogen infection. Finally, heterologous expression experiments showed that PpE4 triggers non-specific cell death in a variety of plants, including tobacco, tomato, potato and A. thaliana. Virus-induced gene silencing assays revealed that PpE4-induced cell death is dependent on HSP90, NPK and SGT1, suggesting that PpE4 is recognized by the plant immune system. In conclusion, PpE4 is an important virulence RXLR effector of P. parasitica and recognized by a wide range of host plants.
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Affiliation(s)
- Guiyan Huang
- State Key Laboratory of Crop Stress Biology for Arid AreasNorthwest A&F UniversityYanglingShaanxi712100China
- College of Life SciencesNorthwest A&F UniversityYanglingShaanxi712100China
| | - Zhirou Liu
- State Key Laboratory of Crop Stress Biology for Arid AreasNorthwest A&F UniversityYanglingShaanxi712100China
- College of Plant ProtectionNorthwest A&F UniversityYanglingShaanxi712100China
| | - Biao Gu
- State Key Laboratory of Crop Stress Biology for Arid AreasNorthwest A&F UniversityYanglingShaanxi712100China
- College of Plant ProtectionNorthwest A&F UniversityYanglingShaanxi712100China
| | - Hong Zhao
- State Key Laboratory of Crop Stress Biology for Arid AreasNorthwest A&F UniversityYanglingShaanxi712100China
- College of Plant ProtectionNorthwest A&F UniversityYanglingShaanxi712100China
| | - Jinbu Jia
- State Key Laboratory of Crop Stress Biology for Arid AreasNorthwest A&F UniversityYanglingShaanxi712100China
- College of Plant ProtectionNorthwest A&F UniversityYanglingShaanxi712100China
- Institute of Plant and Food Science, Department of BiologySouthern University of Science and TechnologyShenzhen518055China
| | - Guangjin Fan
- State Key Laboratory of Crop Stress Biology for Arid AreasNorthwest A&F UniversityYanglingShaanxi712100China
- College of Plant ProtectionNorthwest A&F UniversityYanglingShaanxi712100China
| | - Yuling Meng
- State Key Laboratory of Crop Stress Biology for Arid AreasNorthwest A&F UniversityYanglingShaanxi712100China
- College of AgronomyNorthwest A&F UniversityYanglingShaanxi712100China
| | - Yu Du
- State Key Laboratory of Crop Stress Biology for Arid AreasNorthwest A&F UniversityYanglingShaanxi712100China
- College of HorticultureNorthwest A&F UniversityYanglingShaanxi712100China
| | - Weixing Shan
- State Key Laboratory of Crop Stress Biology for Arid AreasNorthwest A&F UniversityYanglingShaanxi712100China
- College of AgronomyNorthwest A&F UniversityYanglingShaanxi712100China
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50
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Jin MY, Han Y, Liu YJ, Gu B, Chen J, Shi SS, Xu MZ, Cai CS, Tang YQ, Wu DP. [Treatment of central nervous system leukemia with CD19-chimeric antigen receptor T-cell immunotherapy: two cases report and literature review]. Zhonghua Xue Ye Xue Za Zhi 2019; 39:650-653. [PMID: 30180466 PMCID: PMC7342845 DOI: 10.3760/cma.j.issn.0253-2727.2018.08.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
目的 探讨CAR-T细胞治疗中枢神经系统白血病(CNSL)的有效性和安全性。 方法 报道两例合并CNSL白血病患者抗CD19 CAR-T细胞治疗的过程及结果,并对相关文献进行复习。 结果 两例患者骨髓细胞形态学特征分别为伴B淋系表达的急性髓系白血病(AML)-M2和急性B淋巴细胞白血病(B-ALL),免疫分型符合AML-M2和B-ALL的异常表现,临床和实验室检查符合CNSL诊断标准,诊断明确后予以抗CD19 CAR-T细胞治疗,输注总量均为5.0×106/kg。回输后两例患者中枢神经系统症状缓解。例1影像学异常消失,治疗过程中出现细胞因子释放综合征(CRS),药物干预后好转;例2脑脊液微小残留病转阴,未出现明显CRS反应。 结论 CAR-T细胞治疗有望缓解CNSL,改善患者预后。
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Affiliation(s)
- M Y Jin
- The First Affiliated Hospital of Soochow University, Jiangsu Institute of Hematology, Collaborative Innovation Centre of Hematology, Institute of Hematopoietic Stem Cell Transplantation, Key Laboratory of Thrombosis and Haemostasis of Ministry of Health, Suzhou 215006, China
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