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Ma YH, Gao XZ, Zhang YP, Pang X, Huang P, Li WC. [Small intestinal metastatic alveolar soft part sarcoma: report of two cases]. Zhonghua Bing Li Xue Za Zhi 2023; 52:512-514. [PMID: 37106298 DOI: 10.3760/cma.j.cn112151-20220823-00716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Affiliation(s)
- Y H Ma
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - X Z Gao
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Y P Zhang
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - X Pang
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - P Huang
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - W C Li
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
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Bai L, Zhang H, Zhou Y, Liang H, Chen S, Pang X, Michael GM, Zhang L, Chen L. Development of a surface plasmon resonance (SPR) assay for rapid detection of Aeromonas hydrophila. Anal Biochem 2023; 670:115151. [PMID: 37028781 DOI: 10.1016/j.ab.2023.115151] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Revised: 03/04/2023] [Accepted: 04/03/2023] [Indexed: 04/09/2023]
Abstract
Aquaculture plays an increasingly important if not critical role in the current and future world food supply. Aeromonas hydrophila, a heterotrophic, Gram-negative, bacterium found in fresh or brackish water in warm climates poses a serious threat to the aquaculture industry in many areas, causing significant economic losses. Rapid, portable detection methods of A. hydrophila are needed for its effective control and mitigation. We have developed a surface plasmon resonance (SPR) technique to detect PCR (polymerase chain reaction) products that can replace agarose gel electrophoresis, or otherwise provide an alternative to costlier and more complicated real-time, fluorescence-based detection. The SPR method provides sensitivity comparable to gel electrophoresis, while reducing labor, cross-contamination, and test time, and employs simpler instrumentation with lower cost than real-time PCR.
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Affiliation(s)
- Linyi Bai
- Shandong Provincial Key Laboratory of Animal Resistance Biology, College of Life Sciences, Shandong Normal University, Jinan, 250000, PR China
| | - Hao Zhang
- College of Information Science and Technology, Beijing University of Chemical Technology, Beijing, 100029, PR China; State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, 300072, PR China
| | - Yuan Zhou
- Shandong Provincial Key Laboratory of Animal Resistance Biology, College of Life Sciences, Shandong Normal University, Jinan, 250000, PR China
| | - Hongkun Liang
- Shandong Provincial Key Laboratory of Animal Resistance Biology, College of Life Sciences, Shandong Normal University, Jinan, 250000, PR China
| | - Shujun Chen
- Shandong Provincial Key Laboratory of Animal Resistance Biology, College of Life Sciences, Shandong Normal University, Jinan, 250000, PR China
| | - Xuehui Pang
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, 250000, PR China
| | - G Mauk Michael
- Department of Engineering Technology, Division of Engineering Management and Technology, College of Engineering, Drexel University, One Drexel Plaza, 3001 Market Street, Philadelphia, PA, 19104, USA
| | - Lulu Zhang
- College of Information Science and Technology, Beijing University of Chemical Technology, Beijing, 100029, PR China.
| | - Lei Chen
- Shandong Provincial Key Laboratory of Animal Resistance Biology, College of Life Sciences, Shandong Normal University, Jinan, 250000, PR China.
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Pang X, Ji S, Zhang P, Feng W, Zhang L, Li K, Tang Y, Liu Y. Interlayer Doping of Pseudocapacitive Hydrated Vanadium Oxide via Mn2+ for High-Performance Aqueous Zinc-Ion Battery. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.141810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Min J, Huang Z, Pang X, Zhong T, Jin C, Chen N, Xia D, Zhang P, Wang Z, Xia Y, Li B. 486P AK130, a first-in-class Fc-mutant anti-TIGIT antibody fused with TGF-βRII protein, elicits potent anti-tumor efficacy in pre-clinical studies. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Li B, Huang Z, Pang X, Zhong T, Jin C, Chen N, Ma S, He X, Xia D, Jin X, Wang Z, Xia Y. 2O Penpulimab, an IgG1 anti-PD-1 antibody with Fc-engineering to eliminate effector functions and with unique epitope and binding properties. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.280] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Li LF, Wang ZB, Han CG, Sun HQ, Wang R, Ren YL, Lin JQ, Pang X, Liu XM, Lin JQ, Chen LX. Optimal reference genes for real-time quantitative PCR and the expression of sigma factors in Acidithiobacillus caldus under various conditions. J Appl Microbiol 2021; 131:1800-1812. [PMID: 33754423 DOI: 10.1111/jam.15085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 03/02/2021] [Accepted: 03/18/2021] [Indexed: 12/01/2022]
Abstract
AIMS Acidithiobacillus caldus is an important sulphur-oxidizing bacterium that plays crucial roles in the bioleaching industry. This study aims to analyse the optimal reference gene for real-time quantitative PCR (RT-qPCR) under different conditions and investigate the transcription levels of the sigma factor genes in the stress response. METHODS AND RESULTS We selected six housekeeping genes and analysed them via RT-qPCR using two energy resources, under four stress conditions. Three statistical approaches BestKeeper, geNorm, and NormFinder were utilized to determine transcription stability of these reference genes. The gapdH gene was the best internal control gene using elemental sulphur as an energy resource and under heat stress, map was the best internal control gene under pH and osmotic stress, era was the best internal control gene for the K2 S4 O6 energy resource, and rpoC was the best internal control gene under Cu2+ stress. Furthermore, the expressional levels of 11 sigma factors were analysed by RT-qPCR in the stress response. CONCLUSIONS Stable internal control genes for RT-qPCR analysis of A. caldus were determined, and the expression patterns of sigma factor genes of A. caldus were investigated. SIGNIFICANCE AND IMPACT OF THE STUDY The identification of the optimal reference gene and analysis of transcription levels of sigma factors in A. caldus can provide clues for reference gene selection and the study of sigma factor function.
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Affiliation(s)
- L F Li
- Henan Neurodevelopment Engineering Research Center for Children, Henan Key Laboratory of Children's Genetics and Metabolic Diseases, Children's Hospital Affiliated to Zhengzhou University, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou, China.,State Key Laboratory of Microbial Technology, Shandong University, Qingdao, China
| | - Z B Wang
- Energy-rich Compounds Production by Photosynthetic Carbon Fixation Research Center, Shandong Key Lab of Applied Mycology, College of Life Sciences, Qingdao Agricultural University, Qingdao, China
| | - C G Han
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, China
| | - H Q Sun
- Department of Neonatology, Children's Hospital Affiliated to Zhengzhou University, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou, China
| | - R Wang
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, China
| | - Y L Ren
- Qingdao Longding Biotech Limited Company, Qingdao, China
| | - J Q Lin
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, China
| | - X Pang
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, China
| | - X M Liu
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, China
| | - J Q Lin
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, China
| | - L X Chen
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, China
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Xiao W, Li M, Guo Z, Zhang R, Xi S, Zhang X, Li Y, Wu D, Ren Y, Pang X, Wan X, Li K, Zhou C, Zhai X, Wang Q, Zeng Z, Zhang H, Yang X, Wu Y, Li M, Gao Y. A Genotype Signature for Predicting Pathologic Complete Response in Locally Advanced Rectal Cancer. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.2241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Kolpakov S, Sergeyev SV, Udalcovs A, Pang X, Ozolins O, Schatz R, Popov S. Optical rogue waves in coupled fiber Raman lasers. Opt Lett 2020; 45:4726-4729. [PMID: 32870842 DOI: 10.1364/ol.398493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Accepted: 07/18/2020] [Indexed: 06/11/2023]
Abstract
For coupled linear cavity-random fiber Raman lasers, for the first time, to the best of our knowledge, we demonstrate a new mechanism of emergence of the random pulses, with the anomalous statistics satisfying optical rogue waves' criteria experimentally. The rogue waves appear as a result of the coupling of two Raman cascades, namely, a linear cavity laser with a wavelength of 1.55 µm and a random laser with a wavelength nearly 1.67 µm, along with coupling of the orthogonal states of polarization (SOPs). The coherent coupling of SOPs causes localization of the trajectories in the vicinity of these states, whereas polarization instability drives escape taking the form of chaotic oscillations. Antiphase dynamics in two cascades result in the suppression of low amplitude chaotic oscillations and enable the anomalous spikes, satisfying rogue waves criteria.
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Pang X, Zhang L, Liu N, Liu B, Chen Z, Li H, Chen M, Peng M, Ren H, Hu P. Combination of pegylated interferon-alpha and nucleos(t)ide analogue treatment enhances the activity of natural killer cells in nucleos(t)ide analogue experienced chronic hepatitis B patients. Clin Exp Immunol 2020; 202:80-92. [PMID: 32638357 DOI: 10.1111/cei.13486] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 06/07/2020] [Accepted: 06/11/2020] [Indexed: 02/06/2023] Open
Abstract
A combination of pegylated interferon-alpha (peg-IFN-α) and nucleos(t)ides analogue (NA) therapy can effectively reduce hepatitis B surface antigen (HBsAg), especially in NA-experienced chronic hepatitis B (CHB) patients. However, the immune mechanism of this therapy is unclear. Forty NA-experienced CHB patients were enrolled into this study. The frequencies of peripheral blood natural killer (NK) cells, dendritic cells (DCs), CD4+ T cells, CD8+ T cells, T helper (Th) cells, regulatory T cells (Treg ), B cells and follicular T helper (Tfh) cells were evaluated by flow cytometry. Seven of the 40 patients converted to peg-IFN-α combined with NA treatment, while the other 33 continued to NA therapy. The decrease in HBsAg was more pronounced in the combination treatment group, and only patients receiving combination treatment achieved HBsAg loss. The frequency and absolute number of CD56bright NK cells in the combination treatment group increased significantly compared with the NA treatment group, whereas the CD56dim NK cells were decreased. In the NA treatment group, the proportions of CD4+ TN , CD8+ TN , CD19+ B and cytotoxic T lymphocyte antigen-4 (CTLA-4)+ CD4+ T cells were increased, while the proportions of CD4+ TEM , CD8+ TEM , CD25+ CD4+ Treg , CD25high CD4+ Treg , CD127low CD25+ Treg , programmed cell death 1 (PD-1)+ CD4+ T, PD-1+ CD8+ T, CTLA-4+ CD8+ T, CCR4+ CD25+ Treg and CCR4+ CD25high Treg cells were decreased after therapy. For NA-experienced CHB patients who achieved low HBsAg levels, combination treatment is more likely to result in HBsAg decline and HBsAg clearance by increasing the activity of CD56bright NK cells.
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Affiliation(s)
- X Pang
- Department of Infectious Diseases, Institute for Viral Hepatitis, The Key Laboratory of Molecular Biology for Infectious Diseases, Chinese Ministry of Education, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - L Zhang
- Department of Infectious Diseases, Institute for Viral Hepatitis, The Key Laboratory of Molecular Biology for Infectious Diseases, Chinese Ministry of Education, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - N Liu
- Department of Infectious Diseases, Institute for Viral Hepatitis, The Key Laboratory of Molecular Biology for Infectious Diseases, Chinese Ministry of Education, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - B Liu
- Department of Infectious Diseases, Institute for Viral Hepatitis, The Key Laboratory of Molecular Biology for Infectious Diseases, Chinese Ministry of Education, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Z Chen
- Department of Infectious Diseases, Institute for Viral Hepatitis, The Key Laboratory of Molecular Biology for Infectious Diseases, Chinese Ministry of Education, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - H Li
- Department of Infectious Diseases, Institute for Viral Hepatitis, The Key Laboratory of Molecular Biology for Infectious Diseases, Chinese Ministry of Education, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - M Chen
- Department of Infectious Diseases, Institute for Viral Hepatitis, The Key Laboratory of Molecular Biology for Infectious Diseases, Chinese Ministry of Education, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - M Peng
- Department of Infectious Diseases, Institute for Viral Hepatitis, The Key Laboratory of Molecular Biology for Infectious Diseases, Chinese Ministry of Education, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - H Ren
- Department of Infectious Diseases, Institute for Viral Hepatitis, The Key Laboratory of Molecular Biology for Infectious Diseases, Chinese Ministry of Education, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - P Hu
- Department of Infectious Diseases, Institute for Viral Hepatitis, The Key Laboratory of Molecular Biology for Infectious Diseases, Chinese Ministry of Education, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
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Lv Y, Pang X, Jia PY, Jia DL. Combined therapy of infusion of DC from rats with higher expression of IDO and CD40L on rejection post heart transplantation. Eur Rev Med Pharmacol Sci 2019; 22:7977-7984. [PMID: 30536346 DOI: 10.26355/eurrev_201811_16426] [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] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Indoleamine 2, 3-dioxygenase (IDO) can inhibit rejection of graft via inducing T cell apoptosis. CD40L monoclonal antibody (mAb) inhibits T cell activation. However, the effects of the combination of infusion of dendritic cell (DC) from IDO over-expressed donor mice and CD40L mAb on the treatment of graft rejection after heart transplantation have not been reported. MATERIALS AND METHODS Allogeneic heart transplantation mouse model was established. Recipient mice were divided into three groups, including control group, IDO group (in which DC donors received adenoviral vector of IDO) and combined therapy group (which received both IDO over-expressed DC infusion and CD40L mAb injection post transplantation). Survival time and cardiac function were observed, with IDO expression being quantified. Flow cytometry (FCM) was used to analyze T cell apoptosis, while enzyme linked immunosorbent assay (ELISA) was adopted to test the levels of interferon-γ (IFN-γ), interleukin-2 (IL-2), interleukin-10 (IL-10) and interleukin-6 (IL-6). RESULTS IDO expression was significantly elevated in both IDO and combined therapy groups, with enhanced T cell apoptosis compared to control group (p < 0.05). Both groups had better survival time and cardiac functions compared to control group, along with increased IL-10/IL-6 expression and suppressed INF-γ and IL-2 expression (p < 0.05). However, combined therapy had a better efficiency compared to IDO group (p < 0.05). CONCLUSIONS Combined therapy of high IDO expressed mouse DC perfusion with CD40L mAb can elongate the survival time of recipient heart and inhibit rejection reaction via facilitating T cell apoptosis. Meanwhile, combined therapy could also regulate the expression of some immune suppressant factors and mediate the Th1/Th2 cytokine balance.
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Affiliation(s)
- Y Lv
- Department of Cardiology, the First Affiliated Hospital of China Medical University, Shenyang, Liaoning, China.
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Feng L, Liu Z, Lou X, Zhou X, Chen H, Pang X, Liu S, He F, Wei M, Tian J, Wan X. A Radiomics-Based Multi-Omics Integration Model to Predict the Therapeutic Response to Neoadjuvant Chemoradiotherapy of Rectal Cancer. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.087] [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: 10/26/2022]
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Yang M, Zhou Y, Liu L, Wang S, Jiang J, Shang Q, Yu H, Xiang X, Pang X, Li T, Zhao P. Decreased A20 expression on circulating CD56 bright NK cells contributes to a worse disease status in patients with ankylosing spondylitis. Clin Exp Immunol 2019; 198:1-10. [PMID: 31206174 DOI: 10.1111/cei.13341] [Citation(s) in RCA: 5] [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] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/09/2019] [Indexed: 12/31/2022] Open
Abstract
A20, a pivotal anti-inflammatory protein, preserves immune homeostasis and regulates prolonged inflammation. A previous study has shown that A20 expression levels are down-regulated in peripheral blood mononuclear cells (PBMCs) from patients with ankylosing spondylitis (AS). However, the precise role of A20 in reducing autoimmune disorders needs to be further elucidated. In this study, A20 expression was found to be preferentially reduced on circulating CD56bright natural killer (NK) cells in patients with AS, and its level was negatively correlated with that of proinflammatory cytokines. Further investigation demonstrated that A20 reduces interferon (IFN)-γ and tumour necrosis factor (TNF)-α production in CD56bright NK cells after stimulation with monokines or phorbol myristate acetate (PMA)/ionomycin(P/I). Furthermore, CD56bright NK cells isolated from AS patients promote TNF-α secretion by autologous monocytes, and increasing the A20 expression level partially attenuates this process. More importantly, decreased A20 expression on circulating CD56bright NK cells is associated with worse disease status in patients with AS. Our findings reveal that A20 participates in the pathogenesis of AS by negatively regulating CD56bright NK cells and that its reduced expression contributes to a worsened disease status in patients with AS.
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Affiliation(s)
- M Yang
- Department of Radiology, Yantai Affiliated Hospital of Binzhou Medical University, Yantai, China
| | - Y Zhou
- Department of Clinical Laboratory, Binzhou Medical University Hospital, Binzhou, China
| | - L Liu
- Center of Translational Medicine, Zibo Central Hospital Affiliated to Shandong University, Zibo, China
| | - S Wang
- Department of Rheumatology, Zibo Central Hospital Affiliated to Shandong University, Zibo, China
| | - J Jiang
- Department of Radiology, Yantai Affiliated Hospital of Binzhou Medical University, Yantai, China
| | - Q Shang
- Center of Translational Medicine, Zibo Central Hospital Affiliated to Shandong University, Zibo, China
| | - H Yu
- Center of Translational Medicine, Zibo Central Hospital Affiliated to Shandong University, Zibo, China
| | - X Xiang
- Center of Translational Medicine, Zibo Central Hospital Affiliated to Shandong University, Zibo, China
| | - X Pang
- Center of Translational Medicine, Zibo Central Hospital Affiliated to Shandong University, Zibo, China
| | - T Li
- Department of Clinical Laboratory, Binzhou Medical University Hospital, Binzhou, China
| | - P Zhao
- Center of Translational Medicine, Zibo Central Hospital Affiliated to Shandong University, Zibo, China
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Li C, Pang X, liu R, Shi B. The key factors of mesenchymal β-catenin/f-actin played in palatal elevation. Int J Oral Maxillofac Surg 2019. [DOI: 10.1016/j.ijom.2019.03.048] [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: 10/26/2022]
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Pang X, Zhang X, Gao K, Wan S, Cui C, Li L, Si H, Tang B, Tan W. Visible Light-Driven Self-Powered Device Based on a Straddling Nano-Heterojunction and Bio-Application for the Quantitation of Exosomal RNA. ACS Nano 2019; 13:1817-1827. [PMID: 30672682 PMCID: PMC6613566 DOI: 10.1021/acsnano.8b07944] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [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] [Indexed: 05/23/2023]
Abstract
This paper reports the design and fabrication of a self-powered biosensing device based on TiO2 nanosilks (NSs)@MoS2 quantum dots (QDs) and demonstrates a bioapplication for the quantitative detection of exosomal RNA ( Homo sapiens HOXA distal transcript antisense RNA, HOTTIP). This self-powered device features enhanced power output compared to TiO2 NSs alone. This is attributed to the formation of a heterojunction structure with suitable band offset derived from the hybridization between TiO2 NSs and MoS2 QDs, i.e., the straddling (Type I) band alignment. The sensitization effect and excellent visible light absorption provided by MoS2 QDs can prolong interfacial carrier lifetime and improve energy conversion efficiency. This self-powered biosensing device has been successfully applied in quantitative HOTTIP detection through effective hybridization between a capture probe and HOTTIP. The successful capture of HOTTIP leads to a sequential decrease in power output, which is utilized for ultrasensitive quantitative HOTTIP detection, with a linear relationship of power output change versus the logarithm of HOTTIP concentration ranging from 5 fg/mL to 50 000 ng/mL and a detection limit as low as 5 fg/mL. This TiO2 NSs@MoS2 QDs-based nanomaterial has excellent potential for a superior self-powered device characterized by economical and portable self-powered biosensing. Moreover, this self-powered, visible-light-driven device shows promising applications for cancer biomarker quantitative detection.
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Affiliation(s)
- Xuehui Pang
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Normal University, Jinan, Shandong 250014, China
| | - Xin Zhang
- Department of Clinical Laboratory, Qilu Hospital, Shandong University, Jinan, Shandong 250012, China
| | - Keke Gao
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Normal University, Jinan, Shandong 250014, China
| | - Shuo Wan
- Center for Research at the Bio/nano Interface, Department of Chemistry and Department of Physiology and Functional Genomics, UF Genetics Institute and McKnight Brain Institute, Shands Cancer Center, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Cheng Cui
- Center for Research at the Bio/nano Interface, Department of Chemistry and Department of Physiology and Functional Genomics, UF Genetics Institute and McKnight Brain Institute, Shands Cancer Center, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Lu Li
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Normal University, Jinan, Shandong 250014, China
| | - Haibin Si
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Normal University, Jinan, Shandong 250014, China
| | - Bo Tang
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Normal University, Jinan, Shandong 250014, China
| | - Weihong Tan
- Center for Research at the Bio/nano Interface, Department of Chemistry and Department of Physiology and Functional Genomics, UF Genetics Institute and McKnight Brain Institute, Shands Cancer Center, University of Florida, Gainesville, Florida 32611-7200, United States
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Gao GQ, Jin C, Zheng WC, Pang X, Zheng DX, Bai HL. Strain-mediated magnetic properties of epitaxial cobalt ferrite thin films on flexible muscovite. ACTA ACUST UNITED AC 2018. [DOI: 10.1209/0295-5075/123/17002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Li X, Lu P, Wu B, Wang Y, Wang H, Du B, Pang X, Wei Q. Electrochemiluminescence quenching of luminol by CuS in situ grown on reduced graphene oxide for detection of N-terminal pro-brain natriuretic peptide. Biosens Bioelectron 2018; 112:40-47. [DOI: 10.1016/j.bios.2018.04.030] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Revised: 04/06/2018] [Accepted: 04/16/2018] [Indexed: 01/01/2023]
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Pang X, Cui C, Su M, Wang Y, Wei Q, Tan W. Construction of self-powered cytosensing device based on ZnO nanodisks@g-C 3N 4 quantum dots and application in the detection of CCRF-CEM cells. Nano Energy 2018; 46:101-109. [PMID: 30271703 PMCID: PMC6157620 DOI: 10.1016/j.nanoen.2018.01.018] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
We herein report a self-powered and renewable cytosensing device based on ZnO nanodisks(NDs)@g-C3N4 quantum dots. The device features enhanced photoelectrochemical (PEC) activity compared to ZnO NDs or g-C3N4 QDs alone. The enhanced PEC ability is attributed to the synergistic effect of the high visible light sensitivity of g-C3N4 QDs and the staggered band alignment heterojunction structure with suitable band offset, which affords higher photoelectron transfer and separation efficiency. In addition, the hybridization of g-C3N4 QDs further accelerates interfacial electron transfer and blocks recombination between electron donors and photo-generated holes. The device was applied to the detection of CCRF-CEM cells. By conjugation to Sgc8c aptamer, which preferentially interacts with membrane-bound PTK7 on CCRF-CEM membranes, capture of target CCRF-CEM cells resulted in a decrease in apparent power output, which was then exploited for the ultrasensitive detection of the target cells. This decrease in power output can be recovered by simply increasing the temperature to release the cells, thus recycling the cytosensing performance. The device displayed a linear relationship between the change of power output and the logarithm of the cell concentration from 20 to 20,000 cell/mL (R2 = 0.9837) and a detection limit down to 20 cell/mL, as well as excellent selectivity and reproducibility. Thus, this ZnO NDs@g-C3N4 QDs-based device exhibits high potential for the detection of CCRF-CEM cells.
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Affiliation(s)
- Xuehui Pang
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, Shandong 250022, People’s Republic of China
- Center for Research at the Bio/nano Interface, Department of Chemistry and Department of Physiology and Functional Genomics, UF Genetics Institute and McKnight Brain Institute, Shands Cancer Center, University of Florida, Gainesville, FL 32611-7200, United States
| | - Cheng Cui
- Center for Research at the Bio/nano Interface, Department of Chemistry and Department of Physiology and Functional Genomics, UF Genetics Institute and McKnight Brain Institute, Shands Cancer Center, University of Florida, Gainesville, FL 32611-7200, United States
| | - Minhui Su
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, Shandong 250022, People’s Republic of China
| | - Yaoguang Wang
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, Shandong 250022, People’s Republic of China
| | - Qin Wei
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, Shandong 250022, People’s Republic of China
| | - Weihong Tan
- Center for Research at the Bio/nano Interface, Department of Chemistry and Department of Physiology and Functional Genomics, UF Genetics Institute and McKnight Brain Institute, Shands Cancer Center, University of Florida, Gainesville, FL 32611-7200, United States
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan 410082, People’s Republic of China
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He L, Pang X, Liu H, Chai Y, Wu H, Yang T. Targeted next-generation sequencing and parental genotyping in sporadic Chinese Han deaf patients. Clin Genet 2018; 93:899-904. [PMID: 29178603 DOI: 10.1111/cge.13182] [Citation(s) in RCA: 9] [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: 09/14/2017] [Revised: 11/16/2017] [Accepted: 11/21/2017] [Indexed: 11/29/2022]
Abstract
The interpretation of the targeted next-generation sequencing (NGS) results can be challenging for variants identified in the sporadic deaf patients. In this study, we performed targeted NGS of 143 deafness-associated genes in 44 sporadic deaf patients and use parental genotyping to test whether the candidate pathogenic variants complied with recessive or de novo pattern. Of 29 recessive candidate variants with minor allele frequencies (MAFs) less than 0.005, 3 pairs of apparent compound heterozygous variants were inherited from the same parental allele, ruling out their pathogenic roles. In addition, non-segregation of an OTOA p.Gln293Arg variant led to the discovery of a genomic microdeletion of OTOA on the opposite allele by copy number variation analysis. Overall, 13 pairs of recessive candidate variants were deemed causative in 13 patients. Of the 28 dominant candidate variants with MAFs less than 0.0005, none occurred de novo, suggesting that they were not disease causing. Our results revealed that targeted NGS in sporadic deaf patients may generate a significant false-positive rate. Parental genotyping is a simple but effective step toward minimizing the false-positive results. Our study also showed that de novo variants in dominant deafness genes may not be a common cause for sporadic deafness.
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Affiliation(s)
- L He
- Department of Otorhinolaryngology-Head and Neck Surgery, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.,Shanghai Jiaotong University School of Medicine, Ear Institute, Shanghai, China.,Shanghai Key Laboratory of Translational Medicine on Ear and Nose Diseases, Shanghai, China.,Department of Otorhinolaryngology-Head and Neck Surgery, Chengdu Integrated TCM&Western Medicine Hospital, Sichuan, China
| | - X Pang
- Department of Otorhinolaryngology-Head and Neck Surgery, Taizhou People's Hospital, Fifth Affiliated Hospital of Nantong University, Jiangsu, China
| | - H Liu
- Department of Pediatric Surgery, First Affiliated Hospital of Gannan Medical University, Jiangxi, China
| | - Y Chai
- Department of Otorhinolaryngology-Head and Neck Surgery, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.,Shanghai Jiaotong University School of Medicine, Ear Institute, Shanghai, China.,Shanghai Key Laboratory of Translational Medicine on Ear and Nose Diseases, Shanghai, China
| | - H Wu
- Department of Otorhinolaryngology-Head and Neck Surgery, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.,Shanghai Jiaotong University School of Medicine, Ear Institute, Shanghai, China.,Shanghai Key Laboratory of Translational Medicine on Ear and Nose Diseases, Shanghai, China
| | - T Yang
- Department of Otorhinolaryngology-Head and Neck Surgery, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.,Shanghai Jiaotong University School of Medicine, Ear Institute, Shanghai, China.,Shanghai Key Laboratory of Translational Medicine on Ear and Nose Diseases, Shanghai, China
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20
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Peng B, Yang L, Yang C, Pang X, Chen X, Wu Y. The effectiveness of anterior cervical decompression and fusion for the relief of dizziness in patients with cervical spondylosis: a multicentre prospective cohort study. Bone Joint J 2018; 100-B:81-87. [PMID: 29305455 DOI: 10.1302/0301-620x.100b1.bjj-2017-0650.r2] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
AIMS Cervical spondylosis is often accompanied by dizziness. It has recently been shown that the ingrowth of Ruffini corpuscles into diseased cervical discs may be related to cervicogenic dizziness. In order to evaluate whether cervicogenic dizziness stems from the diseased cervical disc, we performed a prospective cohort study to assess the effectiveness of anterior cervical discectomy and fusion on the relief of dizziness. PATIENTS AND METHODS Of 145 patients with cervical spondylosis and dizziness, 116 underwent anterior cervical decompression and fusion and 29 underwent conservative treatment. All were followed up for one year. The primary outcomes were measures of the intensity and frequency of dizziness. Secondary outcomes were changes in the modified Japanese Orthopaedic Association (mJOA) score and a visual analogue scale score for neck pain. RESULTS There were significantly lower scores for the intensity and frequency of dizziness in the surgical group compared with the conservative group at different time points during the one-year follow-up period (p = 0.001). There was a significant improvement in mJOA scores in the surgical group. CONCLUSION This study indicates that anterior cervical surgery can relieve dizziness in patients with cervical spondylosis and that dizziness is an accompanying manifestation of cervical spondylosis. Cite this article: Bone Joint J 2018;100-B:81-7.
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Affiliation(s)
- B Peng
- General Hospital of Armed Police Force, 69 Yongding Road, Beijing 100039, China
| | - L Yang
- General Hospital of Armed Police Force, 69 Yongding Road, Beijing 100039, China
| | - C Yang
- Changzheng Hospital, 415 Fengyang Rd, Huangpu Qu, Shanghai 200000, China
| | - X Pang
- General Hospital of Armed Police Force, 69 Yongding Road, Beijing 100039, China
| | - X Chen
- Changzheng Hospital, 415 Fengyang Rd, Huangpu Qu, Shanghai 200000, China
| | - Y Wu
- 304th Hospital, 28 Fuxing Rd, Haidian Qu, Beijing 100853, China
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21
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Shi L, Li X, Zhu W, Wang Y, Du B, Cao W, Wei Q, Pang X. Sandwich-Type Electrochemiluminescence Sensor for Detection of NT-proBNP by Using High Efficiency Quench Strategy of Fe 3O 4@PDA toward Ru(bpy) 32+ Coordinated with Silver Oxalate. ACS Sens 2017; 2:1774-1778. [PMID: 29227092 DOI: 10.1021/acssensors.7b00809] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Heart failure (HF) is a burgeoning public health problem trigged by a heart circulation disorder. N-terminal pro-B-type natriuretic peptide (NT-proBNP) has been acknowledged as a prognostic biomarker for cardiac disease. Herein, a sandwich-type electrochemiluminescence (ECL) immunosensor was introduced for sensitive detection of NT-proBNP. Gold nanoparticle modified graphene oxide-Ru(bpy)32+/Ag2C2O4 was used as a luminophore and a desirable platform for immobilization of the captured antibodies. The more stable immobilization of plentiful Ru(bpy)32+ could be implemented by direct covalent bonding chelation with Ag2C2O4. More importantly, significant quenching can be achieved by introducing polydopamine (PDA) coated Fe3O4 onto the electrode via sandwich immunoreactions. The quenching mechanism mainly showed that the excited states of Ru(bpy)32+ could be annihilated by quinone units in PDA via energy transfer. The ECL quenching efficiency was logarithmically related to the concentration of the NT-proBNP in the range from 0.0005 ng/mL to 100.0 ng/mL with a detection limit of 0.28 pg/mL. Furthermore, this specific immunosensor presented good stability and repeatability as well as selectivity, which offers a guiding significance in both fundamental and clinical diagnosis of NT-proBNP.
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Affiliation(s)
- Li Shi
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering and ‡School of Resources and Environment, University of Jinan, Jinan 250022, Shandong, China
| | - Xiaojian Li
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering and ‡School of Resources and Environment, University of Jinan, Jinan 250022, Shandong, China
| | - Wenjuan Zhu
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering and ‡School of Resources and Environment, University of Jinan, Jinan 250022, Shandong, China
| | - Yaoguang Wang
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering and ‡School of Resources and Environment, University of Jinan, Jinan 250022, Shandong, China
| | - Bin Du
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering and ‡School of Resources and Environment, University of Jinan, Jinan 250022, Shandong, China
| | - Wei Cao
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering and ‡School of Resources and Environment, University of Jinan, Jinan 250022, Shandong, China
| | - Qin Wei
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering and ‡School of Resources and Environment, University of Jinan, Jinan 250022, Shandong, China
| | - Xuehui Pang
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering and ‡School of Resources and Environment, University of Jinan, Jinan 250022, Shandong, China
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22
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23
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Yang L, Li Y, Zhang Y, Fan D, Pang X, Wei Q, Du B. 3D Nanostructured Palladium-Functionalized Graphene-Aerogel-Supported Fe 3O 4 for Enhanced Ru(bpy) 32+-Based Electrochemiluminescent Immunosensing of Prostate Specific Antigen. ACS Appl Mater Interfaces 2017; 9:35260-35267. [PMID: 28925683 DOI: 10.1021/acsami.7b11458] [Citation(s) in RCA: 87] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
We developed a novel Ru(bpy)32+-based electrochemiluminescence (ECL) immunosensor utilizing palladium nanoparticle (Pd NP)-functionalized graphene-aerogel-supported Fe3O4 (FGA-Pd) for real-sample analysis of prostate specific antigen (PSA). 3D nanostructured FGA-Pd, as a novel ECL carrier, was prepared by in situ reduction. Large amounts of Ru(bpy)32+ could combine with FGA-Pd via electrostatic interaction to establish a brand-new ECL emitter (Ru@FGA-Pd) for improving ECL efficiency. The obtained Ru@FGA-Pd composite was utilized to label the secondary antibody, which generated strong ECL signals with tripropylamine (TPrA) as a coreactant. Furthermore, we demonstrated that the participation of Pd NPs endowed FGA with favorable electrocatalytic ability in the luminescence process to produce more excited state [Ru(bpy)32+]* for realizing desirable signal amplification. In addition, the primary antibody was captured by gold nanoparticle (Au NP)-functionalized Fe2O3 nanodendrites (Au-FONDs), which possessed good electrical conductivity and favorable biocompatibility. Under optimum conditions, the fabricated sandwich-type ECL immunosensor showed a sensitive response to PSA with a low detection limit of 0.056 pg/mL (S/N = 3) and a calibration range of 0.0001-50 ng/mL. Featuring favorable selectivity, stability, and repeatability, the proposed immunosensor is expected to blaze a novel trail for the real sample detection of PSA and other biomarkers.
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Affiliation(s)
- Lei Yang
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan , Jinan 250022, PR China
| | - Yueyuan Li
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan , Jinan 250022, PR China
| | - Yong Zhang
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan , Jinan 250022, PR China
| | - Dawei Fan
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan , Jinan 250022, PR China
| | - Xuehui Pang
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan , Jinan 250022, PR China
| | - Qin Wei
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan , Jinan 250022, PR China
| | - Bin Du
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan , Jinan 250022, PR China
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Zhao P, Zhang J, Pang X, Zhao L, Li Q, Cao B. Effect of apatinib combined with 5-fluorouracil (5-FU) on proliferation, apoptosis and invasiveness of gastric cancer cells. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx361.047] [Citation(s) in RCA: 2] [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: 11/14/2022] Open
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25
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Gu W, Shi D, Mi N, Pang X, Liu W. Physician, Beware! Drug Fever Without Skin Rashes Can Be Caused by Minocycline. J Investig Allergol Clin Immunol 2017; 27:268-269. [PMID: 28731416 DOI: 10.18176/jiaci.0164] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- W Gu
- Department of Dermatology, General Hospital of Air Force, Beijing, China
| | - D Shi
- Department of Dermatology, General Hospital of Air Force, Beijing, China
| | - N Mi
- Hospital of Beijing Technology and Business University, Beijing, China
| | - X Pang
- Department of Dermatology, General Hospital of Air Force, Beijing, China
| | - W Liu
- Department of Dermatology, General Hospital of Air Force, Beijing, China
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26
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Pang X, Bian H, Su M, Ren Y, Qi J, Ma H, Wu D, Hu L, Du B, Wei Q. Photoelectrochemical Cytosensing of RAW264.7 Macrophage Cells Based on a TiO2 Nanoneedls@MoO3 Array. Anal Chem 2017; 89:7950-7957. [DOI: 10.1021/acs.analchem.7b01038] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Xuehui Pang
- Key Laboratory
of Interfacial Reaction and Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, China
| | | | - Minhui Su
- Key Laboratory
of Interfacial Reaction and Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, China
| | - Yangyang Ren
- Key Laboratory
of Interfacial Reaction and Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, China
| | | | - Hongmin Ma
- Key Laboratory
of Interfacial Reaction and Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, China
| | - Dan Wu
- Key Laboratory
of Interfacial Reaction and Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, China
| | - Lihua Hu
- Key Laboratory
of Interfacial Reaction and Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, China
| | - Bin Du
- Key Laboratory
of Interfacial Reaction and Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, China
| | - Qin Wei
- Key Laboratory
of Interfacial Reaction and Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, China
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27
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Pang X, Bian H, Wang W, Liu C, Khan MS, Wang Q, Qi J, Wei Q, Du B. A bio-chemical application of N-GQDs and g-C 3N 4 QDs sensitized TiO 2 nanopillars for the quantitative detection of pcDNA3-HBV. Biosens Bioelectron 2016; 91:456-464. [PMID: 28064131 DOI: 10.1016/j.bios.2016.12.059] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [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: 10/20/2016] [Revised: 12/15/2016] [Accepted: 12/29/2016] [Indexed: 01/22/2023]
Abstract
Herein, TiO2 nanopillars (NPs)/N-doped graphene quantum dots (N-GQDs)/g-C3N4 QDs heterojunction efficiently suppressed the photogenerated charges recombination and improved photo-to-current conversion efficiency. The introduced N-GQDs and g-C3N4 QDs could result in more effective separation of the photogenerated charges, and thus produce a further increase of the photocurrent. TiO2 NPs/N-GQDs/g-C3N4 QDs were firstly applied as the photoactive materials for the fabrication of the biosensors, and the primers of pcDNA3-HBV were then adsorbed on the TiO2 NPs/N-GQDs/g-C3N4 QDs modified electrode under the activation of EDC/NHS. With increase of the pcDNA3-HBV concentration, the photocurrent reduced once the double helix between the primers and pcDNA3-HBV formed. The developed photoelectrochemical (PEC) biosensor showed a sensitive response to pcDNA3-HBV in a linear range of 0.01 fmol/L to 20nmol/L with a detection limit of 0.005 fmol/L under the optimal conditions. The biosensor exhibited high sensitivity, good selectivity, good stability and reproducibility.
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Affiliation(s)
- Xuehui Pang
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, University of Jinan, Jinan 250022, China
| | - Hongjun Bian
- Department of Emergency, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, China
| | - Weijie Wang
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, University of Jinan, Jinan 250022, China
| | - Cheng Liu
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, University of Jinan, Jinan 250022, China
| | - Malik Saddam Khan
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, University of Jinan, Jinan 250022, China
| | - Qiao Wang
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, University of Jinan, Jinan 250022, China
| | - Jianni Qi
- Central Laboratory, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, China
| | - Qin Wei
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, University of Jinan, Jinan 250022, China.
| | - Bin Du
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, University of Jinan, Jinan 250022, China
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Yan Z, Ma H, Fan D, Hu L, Pang X, Gao J, Wei Q, Wang Q. An ultrasensitive sandwich-type electrochemical immunosensor for carcino embryonie antigen based on supermolecular labeling strategy. J Electroanal Chem (Lausanne) 2016. [DOI: 10.1016/j.jelechem.2016.05.043] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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29
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Pang X, He Y, Jung J, Lin Z. 1D nanocrystals with precisely controlled dimensions, compositions, and architectures. Science 2016; 353:1268-72. [DOI: 10.1126/science.aad8279] [Citation(s) in RCA: 265] [Impact Index Per Article: 33.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2015] [Accepted: 08/03/2016] [Indexed: 12/17/2022]
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30
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Pang X, Ding J. P-238A NOVEL HYBRID TECHNIQUE FOR LOCALIZATION OF SUBCENTIMETER LUNG NODULES. Interact Cardiovasc Thorac Surg 2016. [DOI: 10.1093/icvts/ivw260.236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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31
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Xue L, Ding J, Wang Q, Pang X, Fan H. F-128RISK FACTORS OF MYASTHENIC CRISIS AFTER TOTAL THYMECTOMY FOR PATIENTS WITH THYMOMA AND MYASTHENIA GRAVIS. Interact Cardiovasc Thorac Surg 2016. [DOI: 10.1093/icvts/ivw260.126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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32
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Liu Y, Ma H, Zhang Y, Pang X, Fan D, Wu D, Wei Q. Visible light photoelectrochemical aptasensor for adenosine detection based on CdS/PPy/g-C3N4 nanocomposites. Biosens Bioelectron 2016; 86:439-445. [PMID: 27424261 DOI: 10.1016/j.bios.2016.06.089] [Citation(s) in RCA: 89] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2016] [Revised: 06/29/2016] [Accepted: 06/30/2016] [Indexed: 01/21/2023]
Abstract
In this work, a label-free photoelectrochemical (PEC) aptasensor was developed for adenosine detection based on CdS/PPy/g-C3N4 nanocomposites. The CdS/g-C3N4 heterojunction effectively prevented the photogenerated charges recombination of g-C3N4 and self-photocorrosion processes of CdS, improving photo-to-current conversion efficiency. The introduced polypyrrole (PPy) nanoparticles could lead to a more effective separation of photogenerated charges, thus resulting in a further increasing of photocurrent. The CdS/PPy/g-C3N4 was firstly employed as the photoactive materials for fabrication of aptasensor, and SH-aptamer was then adsorbed on the CdS/PPy/g-C3N4 modified electrodes through S-Cd bond. With increasing of adenosine concentration, the photocurrent decreased as the formation of SH-aptamer-adenosine bioaffinity complexes. Under optimal conditions, the PEC aptasensor had a sensitive response to adenosine in a linear range of 0.3nmolL(-1) to 200nmolL(-1) with a detection limit of 0.1nmolL(-1). Besides, the as-proposed aptasensor has also been applied in human serum samples analysis. The aptasensor exhibits high sensitivity and good stability, thus opening up a new promising PEC platform for some other small molecules analysis.
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Affiliation(s)
- Yixin Liu
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China
| | - Hongmin Ma
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China
| | - Yong Zhang
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China
| | - Xuehui Pang
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China
| | - Dawei Fan
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China
| | - Dan Wu
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China.
| | - Qin Wei
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China
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Zhang J, Huang K, O'Neill KL, Pang X, Luo X. Bax/Bak activation in the absence of Bid, Bim, Puma, and p53. Cell Death Dis 2016; 7:e2266. [PMID: 27310874 PMCID: PMC5143395 DOI: 10.1038/cddis.2016.167] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [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: 03/16/2016] [Revised: 04/20/2016] [Accepted: 05/05/2016] [Indexed: 12/13/2022]
Abstract
How BH3-only proteins activate Bax/Bak, the two gateway proteins of the mitochondria-dependent apoptotic pathway, remains incompletely understood. Although all pro-apoptotic BH3-only proteins are known to bind/neutralize the anti-apoptotic Bcl-2 proteins, the three most potent ones, Bid (tBid), Bim, and Puma, possess an additional activity of directly activating Bax/Bak in vitro. This latter activity has been proposed to be responsible for triggering Bax/Bak activation following apoptotic stimulation. To test this hypothesis, we generated Bid−/−Bim−/−Puma−/− (TKO), TKO/Bax−/−/Bak−/− (PentaKO), and PentaKO/Mcl-1−/− (HexaKO) HCT116 cells through gene editing. Surprisingly, although the TKO cells were resistant to several apoptotic stimuli, robust apoptosis was induced upon the simultaneous inactivation of Bcl-xL and Mcl-1, two anti-apoptotic Bcl-2 proteins known to suppress Bax/Bak activation and activity. Importantly, such apoptotic activity was completely abolished in the PentaKO cells. In addition, ABT-737, a BH3 mimetic that inhibits Bcl-xL/Bcl-w/Bcl-2, induced Bax activation in HexaKO cells reconstituted with endogenous level of GFP-Bax. Further, by generating TKO/p53−/− (QKO) cells, we demonstrated that p53, a tumor suppressor postulated to directly activate Bax, is not required for Bid/Bim/Puma-independent Bax/Bak activation. Together, these results strongly suggest that the direct activation activities of Bid (tBid), Bim, Puma, and p53 are not essential for activating Bax/Bak once the anti-apoptotic Bcl-2 proteins are neutralized.
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Affiliation(s)
- J Zhang
- Eppley Institute for Research in Cancer and Allied Diseases, Fred & Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE 68198-7696, USA.,Xiangya Hospital, Central South University, Changsha 410008, China
| | - K Huang
- Eppley Institute for Research in Cancer and Allied Diseases, Fred & Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE 68198-7696, USA
| | - K L O'Neill
- Eppley Institute for Research in Cancer and Allied Diseases, Fred & Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE 68198-7696, USA
| | - X Pang
- Eppley Institute for Research in Cancer and Allied Diseases, Fred & Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE 68198-7696, USA
| | - X Luo
- Eppley Institute for Research in Cancer and Allied Diseases, Fred & Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE 68198-7696, USA
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Liu Y, Ma H, Gao J, Wu D, Ren X, Yan T, Pang X, Wei Q. Ultrasensitive electrochemical immunosensor for SCCA detection based on ternary Pt/PdCu nanocube anchored on three-dimensional graphene framework for signal amplification. Biosens Bioelectron 2016; 79:71-8. [DOI: 10.1016/j.bios.2015.12.013] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Revised: 11/26/2015] [Accepted: 12/07/2015] [Indexed: 01/20/2023]
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Wu Y, Wang X, Chang S, Lu W, Liu M, Pang X. -Lapachone Induces NAD(P)H:Quinone Oxidoreductase-1- and Oxidative Stress-Dependent Heat Shock Protein 90 Cleavage and Inhibits Tumor Growth and Angiogenesis. J Pharmacol Exp Ther 2016; 357:466-475. [DOI: 10.1124/jpet.116.232694] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023] Open
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Wu D, Wang Y, Zhang Y, Ma H, Pang X, Hu L, Du B, Wei Q. Facile fabrication of an electrochemical aptasensor based on magnetic electrode by using streptavidin modified magnetic beads for sensitive and specific detection of Hg(2.). Biosens Bioelectron 2016; 82:9-13. [PMID: 27031185 DOI: 10.1016/j.bios.2016.03.061] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2016] [Revised: 03/13/2016] [Accepted: 03/23/2016] [Indexed: 01/17/2023]
Abstract
In this work, a novel electrochemical aptasensor was developed for sensitive and specific detection of Hg(2+) based on thymine-Hg(2+)-thymine (T-Hg(2+)-T) structure via application of thionine (Th) as indicator signal. For the fabrication of the aptasensor, streptavidin modified magnetic beads (Fe3O4-SA) was firmly immobilized onto the magnetic glassy carbon electrode (MGCE) benefited from its magnetic character. Then biotin labeled T-riched single stranded DNA (Bio-ssDNA) connected with Fe3O4-SA specifically and steadily because of the specific binding capacity between streptavidin and biotin. The stable structure of T-Hg(2+)-T formed in the present of Hg(2+) provided convenience for the intercalation of Th. The detection of Hg(2+) was achieved by recording the differential pulse voltammetry (DPV) signal of Th. Under optimal experimental conditions, the linear range of the fabricated electrochemical aptasensor was 1-200nmol/L, with a detection limit of 0.33nmol/L. Furthermore, the proposed aptasensor may find a potential application for the detection of Hg(2+) in real water sample analysis.
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Affiliation(s)
- Dan Wu
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China
| | - Yaoguang Wang
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China
| | - Yong Zhang
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China
| | - Hongmin Ma
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China
| | - Xuehui Pang
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China
| | - Lihua Hu
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China
| | - Bin Du
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China.
| | - Qin Wei
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China
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Pang X, Zhang Y, Pan J, Zhao Y, Chen Y, Ren X, Ma H, Wei Q, Du B. A photoelectrochemical biosensor for fibroblast-like synoviocyte cell using visible light-activated NCQDs sensitized-ZnO/CH 3 NH 3 PbI 3 heterojunction. Biosens Bioelectron 2016; 77:330-8. [DOI: 10.1016/j.bios.2015.09.047] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Revised: 09/19/2015] [Accepted: 09/21/2015] [Indexed: 10/23/2022]
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Pang X, Wang L, Ma H, Zhang Y, Pan J, Chen Y, Du B, Wei Q. Enhanced photoelectrochemical aptasensing platform for TXNDC5 gene based on exciton energy transfer between NCQDs and TiO2 nanorods. Sci Rep 2016; 6:19202. [PMID: 26777976 PMCID: PMC4726003 DOI: 10.1038/srep19202] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [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: 10/05/2015] [Accepted: 12/08/2015] [Indexed: 11/09/2022] Open
Abstract
The over expression of thioredoxin domain-containing protein 5 (TXNDC5) can promote the growth of castration-resistant prostate cancer (CRPC). A novel highly sensitive photoelectrochemical (PEC) aptsensor was developed for the detection of TXNDC5 by using the nanohybrids (TiO2 NRs/NCQDs) of nitrogen-doped carbon quantum dots (NCQDs) and TiO2 nanorods as the photo-to-electron conversion medium. TiO2 NRs/NCQDs nanohybrids were prepared by controlling the experimental condition. TiO2 NRs were self-assembled to form the nanopores with good photocurrent conversion efficiency. NCQDs possessed carboxyl groups (−COOH) and amino groups (−NH2) in the preparation process. −COOH and −NH2 groups played important roles for anchoring the capture probes (5′ primer and 3′ primer) through covalent binding. The ultrasensitive and stable detection for TXNDC5 was achieved by the specific recognition between the capture probes and the targets. The fabricated aptsensor showed excellent performance with a wide linear range (0.5 fmol/L ∼ 10 nmol/L) and a low detection limit of 0.1 fmol/L. This kind of aptsensor would provide a potential application for TXNDC5.
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Affiliation(s)
- Xuehui Pang
- Key Laboratory of Chemical Sensing &Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
| | - Lin Wang
- Shandong Medicinal Biotechnology Centre, the Key Lab for Biotechnology Drugs of Ministry of Health, the Key Lab of Rare and Uncommon Disease, Jinan 250022, China
| | - Hongmin Ma
- Key Laboratory of Chemical Sensing &Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
| | - Yong Zhang
- Key Laboratory of Chemical Sensing &Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
| | - Jihong Pan
- Shandong Medicinal Biotechnology Centre, the Key Lab for Biotechnology Drugs of Ministry of Health, the Key Lab of Rare and Uncommon Disease, Jinan 250022, China
| | - Yao Chen
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Bin Du
- Key Laboratory of Chemical Sensing &Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
| | - Qin Wei
- Key Laboratory of Chemical Sensing &Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
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Pang X, Zhang Y, Liu C, Huang Y, Wang Y, Pan J, Wei Q, Du B. Enhanced photoelectrochemical cytosensing of fibroblast-like synoviocyte cells based on visible light-activated ox-GQDs and carboxylated g-C3N4 sensitized TiO2 nanorods. J Mater Chem B 2016; 4:4612-4619. [DOI: 10.1039/c6tb00295a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Scheme A: Schematic illustration of the PEC cytosensor fabrication process, B: schematic illustration of the energy level diagram.
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Affiliation(s)
- Xuehui Pang
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong
- Key Laboratory of Fluorine Chemistry and Chemical Materials of Shandong Province
- University of Jinan
- Jinan 250022
- China
| | - Yong Zhang
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong
- Key Laboratory of Fluorine Chemistry and Chemical Materials of Shandong Province
- University of Jinan
- Jinan 250022
- China
| | - Cheng Liu
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong
- Key Laboratory of Fluorine Chemistry and Chemical Materials of Shandong Province
- University of Jinan
- Jinan 250022
- China
| | - Ya Huang
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong
- Key Laboratory of Fluorine Chemistry and Chemical Materials of Shandong Province
- University of Jinan
- Jinan 250022
- China
| | - Yaoguang Wang
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong
- Key Laboratory of Fluorine Chemistry and Chemical Materials of Shandong Province
- University of Jinan
- Jinan 250022
- China
| | - Jihong Pan
- Shandong Medicinal Biotechnology Centre
- The Key Lab for Biotechnology Drugs of Ministry of Health
- The Key Lab of Rare and Uncommon Disease
- Jinan 250022
- China
| | - Qin Wei
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong
- Key Laboratory of Fluorine Chemistry and Chemical Materials of Shandong Province
- University of Jinan
- Jinan 250022
- China
| | - Bin Du
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong
- Key Laboratory of Fluorine Chemistry and Chemical Materials of Shandong Province
- University of Jinan
- Jinan 250022
- China
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Lv X, Ma H, Wu D, Yan T, Ji L, Liu Y, Pang X, Du B, Wei Q. Novel gold nanocluster electrochemiluminescence immunosensors based on nanoporous NiGd–Ni2O3–Gd2O3 alloys. Biosens Bioelectron 2016; 75:142-7. [DOI: 10.1016/j.bios.2015.08.038] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Revised: 08/17/2015] [Accepted: 08/18/2015] [Indexed: 11/26/2022]
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Zhang Y, Pang X, Wu D, Ma H, Yan Z, Zhang J, Du B, Wei Q. A robust electrochemiluminescence immunoassay for carcinoembryonic antigen detection based on a microtiter plate as a bridge and Au@Pd nanorods as a peroxidase mimic. Analyst 2016; 141:337-45. [DOI: 10.1039/c5an02053k] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The common drawbacks of most traditional electrochemiluminescence (ECL) immunoassays are the strict storage conditions for the ECL electrode and the steric hindrance caused by bovine serum albumin and antigen.
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Affiliation(s)
- Yong Zhang
- School of Materials Science & Engineering
- Beijing Institute of Technology
- Beijing 100081
- PR China
- School of Chemistry and Chemical Engineering
| | - Xuehui Pang
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- PR China
| | - Dan Wu
- Key Laboratory of Chemical Sensing and Analysis in Universities of Shandong
- Jinan 250022
- PR China
| | - Hongmin Ma
- Key Laboratory of Chemical Sensing and Analysis in Universities of Shandong
- Jinan 250022
- PR China
| | - Zhaoqing Yan
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- PR China
| | - Jiatao Zhang
- School of Materials Science & Engineering
- Beijing Institute of Technology
- Beijing 100081
- PR China
| | - Bin Du
- Key Laboratory of Chemical Sensing and Analysis in Universities of Shandong
- Jinan 250022
- PR China
| | - Qin Wei
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- PR China
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Wang Y, Ma H, Wang X, Pang X, Wu D, Du B, Wei Q. Novel signal amplification strategy for ultrasensitive sandwich-type electrochemical immunosensor employing Pd–Fe3O4-GS as the matrix and SiO2 as the label. Biosens Bioelectron 2015; 74:59-65. [DOI: 10.1016/j.bios.2015.06.033] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2015] [Revised: 05/21/2015] [Accepted: 06/15/2015] [Indexed: 12/11/2022]
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Dang W, Tang H, Cao H, Wang L, Zhang X, Tian W, Pang X, Li K, Chen T. Strategy of STAT3β cell-specific expression in macrophages exhibits antitumor effects on mouse breast cancer. Gene Ther 2015; 22:977-83. [PMID: 26181625 DOI: 10.1038/gt.2015.70] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2014] [Revised: 04/27/2015] [Accepted: 06/18/2015] [Indexed: 01/05/2023]
Abstract
Recent studies underscore the importance of crosstalk between tumor-associated macrophages (TAMs) and tumor cells in cancer progression and metastasis. In our study, AdCD68STAT3β, a recombinant adenovirus containing a STAT3β gene driven by CD68 macrophage-specific promoter, was used to suppress STAT3 and the downstream signaling pathways in TAMs. The results showed that STAT3β gene under the control of CD68 macrophage-specific promoter was only expressed in macrophages, which significantly inhibited the motility and invasion of breast cancer cells when co-cultured with 4T1 cells. Moreover, cell-specific STAT3β expression in TAMs extended survival of tumor-bearing mice and suppressed breast tumor growth, angiogenesis and metastasis, by regulating the crosstalk between tumor cells and TAMs. Therefore, our study provided a novel strategy for the antitumor effects of STAT3β.
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Affiliation(s)
- W Dang
- Key Laboratory of Diagnostic Medicine Designated by the Ministry of Education, Chongqing Medical University, Chongqing, China
| | - H Tang
- Key Laboratory of Diagnostic Medicine Designated by the Ministry of Education, Chongqing Medical University, Chongqing, China
| | - H Cao
- Key Laboratory of Diagnostic Medicine Designated by the Ministry of Education, Chongqing Medical University, Chongqing, China
| | - L Wang
- Key Laboratory of Diagnostic Medicine Designated by the Ministry of Education, Chongqing Medical University, Chongqing, China
| | - X Zhang
- Key Laboratory of Diagnostic Medicine Designated by the Ministry of Education, Chongqing Medical University, Chongqing, China
| | - W Tian
- Key Laboratory of Diagnostic Medicine Designated by the Ministry of Education, Chongqing Medical University, Chongqing, China
| | - X Pang
- Key Laboratory of Diagnostic Medicine Designated by the Ministry of Education, Chongqing Medical University, Chongqing, China
| | - K Li
- Key Laboratory of Diagnostic Medicine Designated by the Ministry of Education, Chongqing Medical University, Chongqing, China
| | - T Chen
- Key Laboratory of Diagnostic Medicine Designated by the Ministry of Education, Chongqing Medical University, Chongqing, China
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Guan X, Pang X, Sun Z, Zhang X, Chen X. Inhibitory effects of zengshengping-butanol fraction on DMBA-induced buccal pouch carcinogenesis in hamsters. Int J Oral Maxillofac Surg 2015. [DOI: 10.1016/j.ijom.2015.08.106] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [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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45
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Ren X, Wu D, Wang Y, Zhang Y, Fan D, Pang X, Li Y, Du B, Wei Q. An ultrasensitive squamous cell carcinoma antigen biosensing platform utilizing double-antibody single-channel amplification strategy. Biosens Bioelectron 2015; 72:156-9. [DOI: 10.1016/j.bios.2015.05.012] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2015] [Revised: 04/14/2015] [Accepted: 05/06/2015] [Indexed: 01/10/2023]
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46
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Pang X, Li J, Zhao Y, Wu D, Zhang Y, Du B, Ma H, Wei Q. Label-Free Electrochemiluminescent Immunosensor for Detection of Carcinoembryonic Antigen Based on Nanocomposites of GO/MWCNTs-COOH/Au@CeO₂. ACS Appl Mater Interfaces 2015; 7:19260-19267. [PMID: 26271682 DOI: 10.1021/acsami.5b05185] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [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: 06/04/2023]
Abstract
A high-sensitivity electrochemiluminescence (ECL) sensor was conducted to detect carcinoembryonic antigen (CEA). Nanocomposites of graphene oxide/carboxylated multiwall carbon nanotubes/gold/cerium oxide nanoparticles (GO/MWCNTs-COOH/Au@CeO2) were used as antibody carriers and sensing platforms to modify on glassy carbon electrodes (GCE). CeO2 nanoparticles were first exploited as an ECL luminescent material and the possible ECL mechanism was proposed in this work. GO/MWCNTs-COOH was used as a loading matrix for CeO2 nanoparticles because of the superior conductivity and large specific surface area. Au nanoparticles were further deposited on this matrix to attach anti-CEA and enhance the sensitivity of immunosensor. The proposed sensing platform showed excellent cathodic ECL performance and sensitive response to CEA. The effects of experimental conditions on the ECL performance were investigated. The proposed immunosensor showed the broad linear range (0.05-100 ng/mL) and the low detection limit (LOD, 0.02 ng/mL, signal-to-noise ratio = 3) according to the selected experimental conditions. The excellent analysis performance for determination of CEA in the human serum samples simplied this immunosensor displayed high sensitivity and excellent repeatability. More importantly, this conducted immunosensor broadens the use scope of CeO2 nanoparticles.
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Affiliation(s)
- Xuehui Pang
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan , Jinan 250022, P.R. China
| | - Jianxiu Li
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan , Jinan 250022, P.R. China
| | - Yongbei Zhao
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan , Jinan 250022, P.R. China
| | - Dan Wu
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan , Jinan 250022, P.R. China
| | - Yong Zhang
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan , Jinan 250022, P.R. China
| | - Bin Du
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan , Jinan 250022, P.R. China
| | - Hongmin Ma
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan , Jinan 250022, P.R. China
| | - Qin Wei
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan , Jinan 250022, P.R. China
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Pang X, Pan J, Wang L, Ren W, Gao P, Wei Q, Du B. CdSe quantum dot-functionalized TiO 2 nanohybrids as a visible light induced photoelectrochemical platform for the detection of proprotein convertase subtilisin/kexin type 6. Biosens Bioelectron 2015; 71:88-97. [DOI: 10.1016/j.bios.2015.04.014] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2014] [Revised: 04/02/2015] [Accepted: 04/05/2015] [Indexed: 11/26/2022]
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Zhou J, Han T, Ma H, Yan T, Pang X, Li Y, Wei Q. A novel electrochemiluminescent immunosensor based on the quenching effect of aminated graphene on nitrogen-doped carbon quantum dots. Anal Chim Acta 2015; 889:82-9. [DOI: 10.1016/j.aca.2015.07.018] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Revised: 07/17/2015] [Accepted: 07/19/2015] [Indexed: 12/28/2022]
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Lv X, Li Y, Yan T, Pang X, Cao W, Du B, Wu D, Wei Q. Electrochemiluminescence modified electrodes based on RuSi@Ru(bpy)32+ loaded with gold functioned nanoporous CO/Co3O4 for detection of mycotoxin deoxynivalenol. Biosens Bioelectron 2015; 70:28-33. [DOI: 10.1016/j.bios.2015.03.020] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2014] [Revised: 02/25/2015] [Accepted: 03/09/2015] [Indexed: 11/28/2022]
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