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Caravaca J, Bobba KN, Du S, Peter R, Gullberg GT, Bidkar AP, Flavell RR, Seo Y. A technique to quantify very low activities in regions of interest with a collimatorless detector. IEEE Trans Med Imaging 2024; PP:1-1. [PMID: 38478457 DOI: 10.1109/tmi.2024.3377142] [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] [Indexed: 03/20/2024]
Abstract
We present a new method to measure sub-microcurie activities of photon-emitting radionuclides in organs and lesions of small animals in vivo. Our technique, named the collimator-less likelihood fit, combines a very high sensitivity collimatorless detector with a Monte Carlo-based likelihood fit in order to estimate the activities in previously segmented regions of interest along with their uncertainties. This is done directly from the photon projections in our collimatorless detector and from the region of interest segmentation provided by an x-ray computed tomography scan. We have extensively validated our approach with 225Ac experimentally in spherical phantoms and mouse phantoms, and also numerically with simulations of a realistic mouse anatomy. Our method yields statistically unbiased results with uncertainties smaller than 20% for activities as low as ~111 Bq (3 nCi) and for exposures under 30 minutes. We demonstrate that our method yields more robust recovery coefficients when compared to SPECT imaging with a commercial pre-clinical scanner, specially at very low activities. Thus, our technique is complementary to traditional SPECT/CT imaging since it provides a more accurate and precise organ and tumor dosimetry, with a more limited spatial information. Finally, our technique is specially significant in extremely low-activity scenarios when SPECT/CT imaging is simply not viable.
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Liang S, Cao W, Zhuang Y, Zhang D, Du S, Shi H. Suppression of microRNA-320 Induces Cerebral Protection Against Ischemia/Reperfusion Injury by Targeting HMGB1/NF-kappaB Axis. Physiol Res 2024; 73:127-138. [PMID: 38466011 PMCID: PMC11019618 DOI: 10.33549/physiolres.935081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Accepted: 09/15/2023] [Indexed: 04/26/2024] Open
Abstract
MicroRNAs have been shown to potentially function in cerebral ischemia/reperfusion (IR) injury. This study aimed to examine the expression of microRNA-320 (miR-320) in cerebral IR injury and its involvement in cerebral mitochondrial function, oxidative stress, and inflammatory responses by targeting the HMGB1/NF-kappaB axis. Sprague-Dawley rats were subjected to middle cerebral artery occlusion to simulate cerebral IR injury. The cerebral expression of miR-320 was assessed using qRT-PCR. Neurological function, cerebral infarct volume, mitochondrial function, oxidative stress, and inflammatory cytokines were evaluated using relevant methods, including staining, fluorometry, and ELISA. HMGB1 expression was analyzed through Western blotting. The levels of miR-320, HMGB1, neurological deficits, and cerebral infarction were significantly higher after IR induction. Intracerebral overexpression of miR-320 resulted in substantial neurological deficits, increased infarct volume, elevated levels of 8-isoprostane, NF-kappaBp65, TNF-alpha, IL-1beta, ICAM-1, VCAM-1, and HMGB1 expression. It also promoted the loss of mitochondrial membrane potential and ROS levels while reducing MnSOD and GSH levels. Downregulation of miR-320 and inhibition of HMGB1 activity significantly reversed the outcomes of cerebral IR injury. MiR-320 plays a negative role in regulating cerebral inflammatory/oxidative reactions induced by IR injury by enhancing HMGB1 activity and modulating mitochondrial function.
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Affiliation(s)
- S Liang
- Department of Neurosurgery, The First Affiliated Hospital of Harbin Medical University, Nangang District, Harbin, Heilongjiang Province, China.
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Abstract
PURPOSE/OBJECTIVE(S) Radiation therapy (RT) is indispensable for managing thoracic carcinomas. However, its application is limited by radiation-induced lung injury (RILI), one of the most common and fatal complications of thoracic RT. Nonetheless, the exact molecular mechanisms of RILI remain poorly understood. MATERIALS/METHODS To elucidate the underlying mechanisms, various knockout (KO) mouse strains were subjected to 16 Gy whole-thoracic RT. RILI was assessed by qRT-PCR, ELISA, histology, western blot, immunohistochemistry, and CT examination. To perform further mechanistic studies on the signaling cascade during the RILI process, pulldown, CHIP, and rescue assays were conducted. RESULTS We found that the cGAS-STING pathway was significantly upregulated after irradiation exposure in both the mouse models and clinical lung tissues. Knocking down either cGAS or STING led to attenuated inflammation and fibrosis in mouse lung tissues. NLRP3 is hardwired to the upstream DNA-sensing cGAS-STING pathway to trigger of the inflammasome and amplification of the inflammatory response. STING deficiency suppressed the expressions of the NLRP3 inflammasome and pyroptosis-pertinent components containing IL-1β, IL-18, and cleaved caspase-1. Mechanistically, interferon regulatory factor 3, the essential transcription factor downstream of cGAS-STING, promoted the pyroptosis by transcriptionally activating NLRP3. Moreover, we found that RT triggered the release of self-dsDNA in the bronchoalveolar space, which is essential for the activation of cGAS-STING and the downstream NLRP3-mediated pyroptosis. Of note, Pulmozyme, an old drug for the management of cystic fibrosis, was revealed to have the potential to mitigate RILI by degrading extracellular dsDNA and then inhibiting the cGAS-STING-NLRP3 signaling pathway. CONCLUSION These results delineated the crucial function of cGAS-STING as a key mediator of RILI, and described a mechanism of pyroptosis linking cGAS-STING activation with the amplification of initial RILI. These findings indicate that the dsDNA-cGAS-STING-NLRP3 axis might be potentially amenable to therapeutic targeting for RILI.
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Affiliation(s)
- Y Zhang
- Zhongshan Hospital, Fudan University, Shanghai, China
| | - S Du
- Zhongshan Hospital, Fudan University, Shanghai, China
| | - Z Zeng
- Department of Radiation Oncology, Zhongshan Hospital, Fudan University, Shanghai, China
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Zhuang Y, Chen Y, Du S, Hu Y, Zeng ZC. Safety and Efficacy of Hypofractionated Radiotherapy Combined with Tyrosine Kinase Inhibitors in Patients with Lung Metastases after Liver Transplantation for Hepatocellular Carcinoma. Int J Radiat Oncol Biol Phys 2023; 117:e360. [PMID: 37785241 DOI: 10.1016/j.ijrobp.2023.06.2448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) We evaluated the safety and efficacy of hypofractionated radiotherapy (HFRT) combined with tyrosine kinase inhibitors (TKIs) in patients with pulmonary metastases after orthotopic liver transplantation (OLT) for hepatocellular carcinoma (HCC). MATERIALS/METHODS Twenty-five patients with lung metastases after OLT for HCC who underwent HFRT using helical tomotherapy concomitantly with TKIs (sorafenib or lenvatinib) were retrospectively. The primary endpoint was progression-free survival (PFS). The secondary endpoints were overall survival (OS), local control rate (LCR), objective response rate (ORR), and treatment-related side effects. RESULTS The median follow-up time was 35.5 months, with a median interval from OLT to lung metastasis of 15.3 months. The median PFS and OS were 9.9 and 32.7 months, respectively. The 1-, 2-, and 3-year PFS and OS rates were 36.0%, 16.0%, and 12.0%, and 84.0%, 52.0%, and 20.0%, respectively. The LCR of pulmonary metastases at 1 year was 100%, whereas the two-year LCR was 76.9%. The 1- and 2- year ORRs were 95.2% and 69.2%, respectively, with no grade > 2 adverse events. Radiation pneumonitis was observed in 17 patients (68.0%). Grade 1 pneumonitis occurred in 15 patients (60.0%), and grade 2 pneumonitis occurred in 2 patients (8.0%). CONCLUSION The combination therapy of HFRT with TKIs is a feasible, safe, and promising approach in the treatment of pulmonary metastases for HCC after OLT.
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Affiliation(s)
- Y Zhuang
- Department of Radiation Oncology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Y Chen
- Department of Radiation Oncology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - S Du
- Zhongshan Hospital, Fudan University, Shanghai, China
| | - Y Hu
- Department of Radiation Oncology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Z C Zeng
- Department of Radiation Oncology, Zhongshan Hospital, Fudan University, Shanghai, China
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Hsu SJ, Chao YC, Zeng ZC, Du S. Salvage Radiotherapy Improves Survival in Patients with Metastatic Liver Cancer after Immunotherapy Oligoprogression. Int J Radiat Oncol Biol Phys 2023; 117:e303. [PMID: 37785106 DOI: 10.1016/j.ijrobp.2023.06.2321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Immune checkpoint inhibitors (ICIs) have ameliorated the survival outcome of liver cancer, a majority of patients receiving ICIs have eventually developed progression. Local therapy, especially radiotherapy (RT), is increasingly being considered in the setting of oligoprogression to delay the need to change systemic therapy. The aim of this study was to evaluate the efficacy and safety of RT as a salvage treatment in patients with oligoprogression after ICIs. MATERIALS/METHODS This retrospective study was performed to evaluate the use of salvage radiotherapy in oligoprogressive metastatic liver cancer patients. Patients with metastatic liver cancer who had previous stability or response after ≥ 6 mo of ICIs were eligible if they developed progression of five of fewer metastases. RESULTS Overall, 178 patients treated between August 2018 and March 2022 were included. The patients were followed for a median of 17.2 months. The overall response rate (ORR) and disease control rate (DCR) were 38.2% and 57.8%, respectively. The median progression-free survival (PFS) and overall survival (OS) were 6.5 (95% CI:5.116-7.884) and 17.3 (95% CI:11.166-23.434) months. In multivariate analysis, factors associated with OS included tumor size, tumor number, and radiated tumor site (intrahepatic vs. extrahepatic). The most frequent AEs were fatigue, decreased appetite, rash, fever, and nausea. The above-mentioned AEs were reversible and manageable. CONCLUSION Salvage radiotherapy has a potential activity and is tolerable for oligoprogression after ICIs with appropriate radiated tumor site and patient selection. A prospective randomized trial is ongoing to validate this finding (ChiCTR2200060664).
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Affiliation(s)
- S J Hsu
- Department of Radiation Oncology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Y C Chao
- Department of Pulmonary Medicine, Zhongshan Hospital, Fudan University, Shanghai 200032, China, Shanghai, 200000, China
| | - Z C Zeng
- Department of Radiation Oncology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - S Du
- Zhongshan Hospital, Fudan University, Shanghai, China
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Chen Y, Yang P, Du S, Zhuang Y, Hu Y, Zeng ZC. Stereotactic Body Radiotherapy Combined with Sintilimab in Patients with Recurrent or Oligometastatic Hepatocellular Carcinoma: A Phase II Clinical Trial. Int J Radiat Oncol Biol Phys 2023; 117:S106-S107. [PMID: 37784281 DOI: 10.1016/j.ijrobp.2023.06.067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) The anti-tumor activity and tolerability of stereotactic body radiotherapy (SBRT) and PD-1 inhibitors have been illustrated in retrospective studies, but the results vary across a broad range. This study aimed to assess the clinical efficacy of SBRT combined with sintilimab in patients with recurrent or oligometastatic hepatocellular carcinoma (HCC). MATERIALS/METHODS This trial involved patients with recurrent or oligometastatic HCC intravenously treated with SBRT plus sintilimab every 3 weeks for 12 months or until disease progression. The primary endpoint was progression-free survival (PFS). RESULTS Twenty-five patients were enrolled from August 14, 2019, to August 23, 2021. The median treatment duration was 10.2 months. SBRT was delivered at a median dose of 54 in six fractions. The median follow-up time was 21.9 months, and 32 targeted lesions among 25 patients were evaluated for treatment response according to the Response Evaluation Criteria in Solid Tumors version 1.1. The median PFS was 19.7 months, with PFS rates of 68% and 45.3% at 12 and 24 months, respectively. The median overall survival (OS) was not reached, with OS rates of 91.5% and 83.2% at 12 and 24 months, respectively. The 1- and 2-year local control rate were 100% and 90.9%, respectively. The confirmed objective response rate and disease control rate was 96%, and 96%, respectively. Most adverse events were graded as 1 or 2, and grade 3 adverse events were observed in three patients. CONCLUSION SBRT plus sintilimab is an effective, well-tolerated treatment regimen for patients with recurrent or oligometastatic HCC.
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Affiliation(s)
- Y Chen
- Department of Radiation Oncology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - P Yang
- Department of Radiation Oncology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - S Du
- Zhongshan Hospital, Fudan University, Shanghai, China
| | - Y Zhuang
- Department of Radiation Oncology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Y Hu
- Department of Radiation Oncology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Z C Zeng
- Department of Radiation Oncology, Zhongshan Hospital, Fudan University, Shanghai, China
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Shen Z, Jia B, Xu Y, Wessén J, Pal T, Chan HS, Du S, Zhang M. Biological condensates form percolated networks with molecular motion properties distinctly different from dilute solutions. eLife 2023; 12:81907. [PMID: 37261897 DOI: 10.7554/elife.81907] [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] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Accepted: 05/31/2023] [Indexed: 06/02/2023] Open
Abstract
Formation of membraneless organelles or biological condensates via phase separation and related processes hugely expands the cellular organelle repertoire. Biological condensates are dense and viscoelastic soft matters instead of canonical dilute solutions. To date, numerous different biological condensates have been discovered; but mechanistic understanding of biological condensates remains scarce. In this study, we developed an adaptive single molecule imaging method that allows simultaneous tracking of individual molecules and their motion trajectories in both condensed and dilute phases of various biological condensates. The method enables quantitative measurements of concentrations, phase boundary, motion behavior and speed of molecules in both condensed and dilute phases as well as the scale and speed of molecular exchanges between the two phases. Notably, molecules in the condensed phase do not undergo uniform Brownian motion, but instead constantly switch between a (class of) confined state(s) and a random diffusion-like motion state. Transient confinement is consistent with strong interactions associated with large molecular networks (i.e., percolation) in the condensed phase. In this way, molecules in biological condensates behave distinctly different from those in dilute solutions. The methods and findings described herein should be generally applicable for deciphering the molecular mechanisms underlying the assembly, dynamics and consequently functional implications of biological condensates.
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Affiliation(s)
- Zeyu Shen
- Division of Life Science, Hong Kong University of Science and Technology, Hong Kong, China
| | - Bowen Jia
- Division of Life Science, Hong Kong University of Science and Technology, Hong Kong, China
| | - Yang Xu
- Division of Life Science, Hong Kong University of Science and Technology, Hong Kong, China
| | - Jonas Wessén
- Department of Biochemistry, University of Toronto, Toronto, Canada
| | - Tanmoy Pal
- Department of Biochemistry, University of Toronto, Toronto, Canada
| | - Hue Sun Chan
- Department of Biochemistry, University of Toronto, Toronto, Canada
| | - Shengwang Du
- Department of Physics, Hong Kong University of Science and Technology, Hong Kong, China
| | - Mingjie Zhang
- School of Life Sciences, Southern University of Science and Technology, Shenzhen, China
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Chen R, Tang X, Zhao Y, Shen Z, Zhang M, Shen Y, Li T, Chung CHY, Zhang L, Wang J, Cui B, Fei P, Guo Y, Du S, Yao S. Single-frame deep-learning super-resolution microscopy for intracellular dynamics imaging. Nat Commun 2023; 14:2854. [PMID: 37202407 DOI: 10.1038/s41467-023-38452-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Accepted: 04/28/2023] [Indexed: 05/20/2023] Open
Abstract
Single-molecule localization microscopy (SMLM) can be used to resolve subcellular structures and achieve a tenfold improvement in spatial resolution compared to that obtained by conventional fluorescence microscopy. However, the separation of single-molecule fluorescence events that requires thousands of frames dramatically increases the image acquisition time and phototoxicity, impeding the observation of instantaneous intracellular dynamics. Here we develop a deep-learning based single-frame super-resolution microscopy (SFSRM) method which utilizes a subpixel edge map and a multicomponent optimization strategy to guide the neural network to reconstruct a super-resolution image from a single frame of a diffraction-limited image. Under a tolerable signal density and an affordable signal-to-noise ratio, SFSRM enables high-fidelity live-cell imaging with spatiotemporal resolutions of 30 nm and 10 ms, allowing for prolonged monitoring of subcellular dynamics such as interplays between mitochondria and endoplasmic reticulum, the vesicle transport along microtubules, and the endosome fusion and fission. Moreover, its adaptability to different microscopes and spectra makes it a useful tool for various imaging systems.
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Affiliation(s)
- Rong Chen
- Department of Chemical and Biological Engineering, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Xiao Tang
- Division of Life Science, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Yuxuan Zhao
- School of Optical and Electronic Information, Huazhong University of Science and Technology, 430074, Wuhan, China
| | - Zeyu Shen
- Division of Life Science, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Meng Zhang
- School of Optical and Electronic Information, Huazhong University of Science and Technology, 430074, Wuhan, China
| | - Yusheng Shen
- Division of Life Science, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Tiantian Li
- Division of Life Science, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Casper Ho Yin Chung
- Department of Mechanical and Aerospace Engineering, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Lijuan Zhang
- School of Pharmaceutical Sciences, Guizhou University, 550025, Guizhou, China
| | - Ji Wang
- Department of Mechanical and Aerospace Engineering, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Binbin Cui
- Department of Chemical and Biological Engineering, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Peng Fei
- School of Optical and Electronic Information, Huazhong University of Science and Technology, 430074, Wuhan, China
| | - Yusong Guo
- Division of Life Science, The Hong Kong University of Science and Technology, Hong Kong, China.
| | - Shengwang Du
- Department of Chemical and Biological Engineering, The Hong Kong University of Science and Technology, Hong Kong, China.
- Department of Physics, The Hong Kong University of Science and Technology, Hong Kong, China.
- Department of Physics, The University of Texas at Dallas, Richardson, TX, 75080, USA.
| | - Shuhuai Yao
- Department of Chemical and Biological Engineering, The Hong Kong University of Science and Technology, Hong Kong, China.
- Department of Mechanical and Aerospace Engineering, The Hong Kong University of Science and Technology, Hong Kong, China.
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Zhang T, Lu C, Lv M, Du S, Wu X, Wang C. Sini San inhibits breast cancer cell migration and angiogenesis via the HIF 1 /VEGF pathway. TROP J PHARM RES 2023. [DOI: 10.4314/tjpr.v21i12.11] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023] Open
Abstract
Purpose: To investigate the effects of Sini San (SNS) on breast cancer (BC), and the mechanism of action.Methods: MDA-MB-231 and SK-BR-3 cells were used as breast cancer cell models. Cell viability, migration, and invasion were determined by CCK-8, Transwell and wound healing assays, respectively. SNS mechanism of action and its anti-cancer effect were investigated by network pharmacological analysis, and further verified by Immunoblot.Results: Sini San inhibited the proliferation of the breast cancer (BC) cells., and also suppressed the migration as well as the invasion of BC cells, and also restrained the angiogenesis of BC cells. In performing the network pharmacological analysis of Sini Powder in the treatment of BC, 337 drugdisease targets were obtained. PPI network was established through String, and GO and KEGG enrichment analysis was performed on the target sites. KEGG analysis showed that genes were enriched in HIF-1 and VEGF pathways.Conclusion: Sini San suppressed cell migration as well as angiogenesis via the HIF-1 /VEGF pathway
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Hsu S, Chen Y, Yang P, Hu Y, Chen R, Zeng Z, Du S. Radiotherapy Enhance the Immune Checkpoint Inhibitors Efficacy in Advanced Liver Cancer. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Zhao X, Wang B, Du S, Zeng Z. Irradiation Induced Activation of cGAS/STING Signaling Promotes Macrophage Anti-Tumor Activity via CXCL9, CXCL10-CXCR3 Axis. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.643] [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: 11/28/2022]
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Li Z, Zhang Y, Hong W, Zeng Z, Du S. Gut Microbiota Modulates Radiotherapy-Based Antitumor Immune Responses against Hepatocellular Carcinoma through STING Signaling. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.2083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Zhang Y, Li Z, Du S, Zeng Z. High Serum sPD-L1 Level Predicts Poor Outcome in Hepatocellular Carcinoma Patients Treated with Radiotherapy. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Hong W, Zhang Y, Li Z, Zeng Z, Du S. RECQL4 Remodels the Tumor Immune Microenvironment via the cGAS-STING Pathway in Hepatocellular Carcinoma. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.2081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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Liu M, Wang Y, Li Y, Si Q, Bao J, Ge G, Wang Z, Jia Y, Du S. Effects of alfalfa and oat supplementation in fermented total mixed rations on growth performances, carcass characteristics, and meat quality in lambs. Small Rumin Res 2022. [DOI: 10.1016/j.smallrumres.2022.106877] [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: 11/18/2022]
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Zhao H, Du S, Zhu Z, Jiang L, Che X, Qian H, Song J, Liu D, Zhang Y, Zhang P, Sun Y, Zhang W, Tang Y. 724P Anti-PD-1 antibody SHR-1210 combined with apatinib as adjuvant treatment in patients with hepatocellular carcinoma at high risk of recurrence after radical resection: Preliminary results from a multicenter, randomized, controlled phase II trial. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Du S, Elliman S, Zeugolis D, O’Brien T. Mesenchymal Stem/Stromal Cells: MACROMOLECULAR CROWDING ENHANCES EXTRACELLULAR MATRIX DEPOSITION OF MESENCHYMAL STROMAL CELLS GROWN ON SCAFFOLD. Cytotherapy 2022. [DOI: 10.1016/s1465-3249(22)00232-8] [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: 11/28/2022]
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Calcat i Cervera S, Du S, Scaccia E, Rendra E, Amadeo F, O’Brien T. Mesenchymal Stem/Stromal Cells: DIFFERENT SOURCES OF TISSUE-DERIVED MESENCHYMAL STROMAL CELLS SHOW INTRINSIC BIOENERGETIC PHENOTYPES. Cytotherapy 2022. [DOI: 10.1016/s1465-3249(22)00197-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Luo XW, Zhang C, Du S. Quantum Squeezing and Sensing with Pseudo-Anti-Parity-Time Symmetry. Phys Rev Lett 2022; 128:173602. [PMID: 35570450 DOI: 10.1103/physrevlett.128.173602] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 03/28/2022] [Indexed: 06/15/2023]
Abstract
The emergence of parity-time (PT) symmetry has greatly enriched our study of symmetry-enabled non-Hermitian physics, but the realization of quantum PT symmetry faces an intrinsic issue of unavoidable symmetry-breaking Langevin noises. Here we construct a quantum pseudo-anti-PT (pseudo-APT) symmetry in a two-mode bosonic system without involving Langevin noises. We show that the spontaneous pseudo-APT symmetry breaking leads to an exceptional point, across which there is a transition between different types of quantum squeezing dynamics; i.e., the squeezing factor increases exponentially (oscillates periodically) with time in the pseudo-APT-symmetric (broken) region. Such dramatic changes of squeezing factors and quantum dynamics near the exceptional point are utilized for ultraprecision quantum sensing. These exotic quantum phenomena and sensing applications can be experimentally observed in two physical systems: spontaneous wave mixing nonlinear optics and atomic Bose-Einstein condensates. Our Letter offers a physical platform for investigating exciting APT symmetry physics in the quantum realm, paving the way for exploring fundamental quantum non-Hermitian effects and their quantum technological applications.
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Affiliation(s)
- Xi-Wang Luo
- Department of Physics, The University of Texas at Dallas, Richardson, Texas 75080-3021, USA
| | - Chuanwei Zhang
- Department of Physics, The University of Texas at Dallas, Richardson, Texas 75080-3021, USA
| | - Shengwang Du
- Department of Physics, The University of Texas at Dallas, Richardson, Texas 75080-3021, USA
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Zhao MJ, Mao AY, Yuan SS, Wang K, Dong P, Du S, Meng YL, Qiu WQ. [Research progress on building of disease control and prevention system of the international experience]. Zhonghua Yu Fang Yi Xue Za Zhi 2021; 55:1263-1269. [PMID: 34706515 DOI: 10.3760/cma.j.cn112150-20201117-01379] [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: 11/05/2022]
Abstract
Through literature search in regular database and official websites of relevant countries, this paper combs and summarizes the main characteristics of disease prevention and control systems in five countries, the United States, Germany, South Korea, Australia and Japan, and the European Union at key levels including legal construction, organizational structure, financing, personnel construction and international cooperation, in order to provide decision support for the construction of disease prevention and control system in China in the future.
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Affiliation(s)
- M J Zhao
- Institute of Medical Information and Library, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100020, China
| | - A Y Mao
- Institute of Medical Information and Library, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100020, China
| | - S S Yuan
- Institute of Medical Information and Library, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100020, China
| | - K Wang
- Institute of Medical Information and Library, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100020, China
| | - P Dong
- Institute of Medical Information and Library, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100020, China
| | - S Du
- Institute of Medical Information and Library, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100020, China
| | - Y L Meng
- Institute of Medical Information and Library, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100020, China
| | - W Q Qiu
- Institute of Medical Information and Library, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100020, China
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Østergaard M, Bird P, Pachai C, Du S, Wu C, Landis J, Fuerst T, Ahmad HA, Connolly S, Conaghan PG. POS1040 IMPLEMENTATION OF THE OMERACT PSAMRIS IN A PHASE IIB, RANDOMISED PLACEBO-CONTROLLED STUDY OF ABATACEPT IN PSORIATIC ARTHRITIS. Ann Rheum Dis 2021. [DOI: 10.1136/annrheumdis-2021-eular.972] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Background:The semi-quantitative Outcome Measures in Rheumatology (OMERACT) Psoriatic Arthritis Magnetic Resonance Imaging Score (PsAMRIS) was developed for the evaluation of inflammatory and destructive changes in PsA,1 but has limited trial usage.Objectives:To retrospectively utilise the PsAMRIS in a multi-dose, randomised Phase IIb study of abatacept in patients with PsA who have inadequate response to DMARDs (NCT00534313).2Methods:Patients were randomised to abatacept (3, 10 or 30/10 mg/kg [the 30-mg/kg group switched to 10 mg/kg after the first two doses]) or placebo and treated for 169 days, after which all patients received abatacept 10 mg/kg through to Day 365. MRI scans of one hand or foot from 123 patients with PsA collected at baseline and on Days 85, 169 and 365 were centrally evaluated by two readers blinded to chronological order and treatment arm. Synovitis, bone oedema, tenosynovitis, periarticular inflammation, bone erosion, bone proliferation and joint space narrowing were assessed as per OMERACT PsAMRIS; a novel total inflammation score was calculated from the sum of synovitis, bone oedema, tenosynovitis and periarticular inflammation. Variables were analysed using all cases (hand or foot) and by hand and foot cases separately.Results:At Day 169, the abatacept 30/10 mg/kg or 10 mg/kg group showed the most decrease (improvement) in each inflammatory assessment (Figure 1). The Day 169 change from baseline severity in synovitis and tenosynovitis in the abatacept 30/10 mg/kg and 10 mg/kg groups, respectively, were significantly reduced (improved) compared with placebo (estimated differences of –0.966 [p=0.039] and –1.652 [p=0.014], respectively) (Table 1). Patients originally randomised to placebo and then switched to abatacept 10 mg/kg at Day 169 showed significant improvements in synovitis, tenosynovitis and total inflammation from Day 169 to Day 365 (Table 1, Figure 1). The structural outcomes joint space narrowing and bone erosion remained stable within each treatment group, showing little change from baseline to Days 85, 169 and 365. After separating hand and foot analyses (72 hand and 51 foot cases), only hand tenosynovitis in the 10-mg/kg group and foot synovitis in the 3-mg/kg group were significantly reduced (improved) at Day 169 compared with placebo (differences of –2.331 [p=0.017] and –1.689 [p=0.010], respectively). In general, more comparisons in the hand analysis were statistically significant versus in the foot analysis.Conclusion:This analysis confirmed the efficacy of abatacept 10 and 30/10 mg/kg when assessed with the OMERACT PsAMRIS. The inflammatory pathologies, synovitis and tenosynovitis, appeared to be the most responsive MRI outcomes. Analysing hand and foot cases together yielded results consistent with the primary clinical efficacy endpoint (ACR20 response rate), as the abatacept 10- and 30/10-mg/kg groups showed significant differences versus placebo at Day 169;2 reduced sample size in separate hand and foot assessments may have prevented finding significant results corresponding to the combined analysis. These results also demonstrate the responsiveness of the PsAMRIS in PsA randomised clinical trials.References:[1]Glinatsi D, et al. J Rheumatol 2015;42:2473–2479.[2]Mease P, et al. Arthritis Rheum 2011;63:939–948.Table 1.MRI variables showing significant treatment effectsaBetween groups at Day 169MRI scoreComparatorComparatorDifferenceSEp valueSynovitisPlaceboAbatacept 30/10 mg/kg–0.9660.4610.039TenosynovitisPlaceboAbatacept 10 mg/kg–1.6520.6620.014Placebo group before/after switchbMRI scoreTreatment, Day 169Treatment, Day 365DifferenceSEp valueSynovitisPlaceboAbatacept 10 mg/kg–1.0180.4580.029TenosynovitisPlaceboAbatacept 10 mg/kg–0.9400.3900.018Total inflammationPlaceboAbatacept 10 mg/kg–2.2751.0670.036aBased on change from baseline at the stated time points (unadjusted p values).bPatients were switched to abatacept 10 mg/kg after Day 169.Acknowledgements:Professional medical writing and editorial assistance was provided by Rob Coover, MPH, at Caudex and was funded by Bristol Myers Squibb.Disclosure of Interests:Mikkel Østergaard Speakers bureau: AbbVie, Celgene, Eli Lilly, Janssen, Novartis, Pfizer, Roche, Sanofi, UCB, Consultant of: AbbVie, Boehringer Ingelheim, Bristol Myers Squibb, Celgene, Eli Lilly, Hospira, Janssen, Merck, Novartis, Novo, Orion, Pfizer, Regeneron, Roche, Sandoz, Sanofi, UCB, Grant/research support from: AbbVie, Bristol Myers Squibb, Celgene, Merck, Novartis, Paul Bird Speakers bureau: AbbVie, Bristol Myers Squibb, Eli Lilly, Novartis, Pfizer, UCB, Grant/research support from: Gilead, Chahin Pachai Shareholder of: Bristol Myers Squibb, Employee of: Bristol Myers Squibb, Shuyan Du Shareholder of: Bristol Myers Squibb, Employee of: Bristol Myers Squibb, Chun Wu Employee of: Bristol Myers Squibb, Jessica Landis Shareholder of: Bristol Myers Squibb, Employee of: Bristol Myers Squibb, Thomas Fuerst Employee of: Bioclinica, Inc., a contract research service providing radiology central reading services to pharmaceutical, biotech and medical device companies, Harris A Ahmad Employee of: Bristol Myers Squibb, Sean Connolly Shareholder of: Bristol Myers Squibb, Employee of: Bristol Myers Squibb, Philip G Conaghan Speakers bureau: AbbVie, Novartis, Consultant of: AstraZeneca, Bristol Myers Squibb, Eli Lilly, EMD Serono, Flexion Therapeutics, Galapagos, Gilead, Novartis, Pfizer.
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Du S, Elliman S, Zeugolis D, O’Brien T. In vitro optimization of macromolecular crowding conditions in human umbilical cord derived mesenchymal stromal cell culture. Cytotherapy 2021. [DOI: 10.1016/s1465324921003388] [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]
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Kang M, Lau KM, Yung TK, Du S, Tam WY, Li J. Tailor-made unitary operations using dielectric metasurfaces. Opt Express 2021; 29:5677-5686. [PMID: 33726102 DOI: 10.1364/oe.411467] [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: 10/01/2020] [Accepted: 12/28/2020] [Indexed: 06/12/2023]
Abstract
Qubit operation belonging to unitary transformation is the fundamental operation to realize quantum computing and information processing. Here, we show that the complex and flexible light-matter interaction between dielectric metasurfaces and incident light can be used to perform arbitrary U(2) operations. By incorporating both coherent spatial-mode operation together with two polarizations on a single metasurface, we further extend the discussion to single-photon two-qubit U(4) operations. We believe the efficient usage of metasurfaces as a potential compact platform can simplify optical qubit operation from bulky systems into conceptually subwavelength elements.
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Madrahimov N, Cristaldo RB, Du S, Keller D, Malikov M, Zaiatc E, Klapproth A, Penov K, Hamouda K, Leyh R, Bening C. Novel Post Mortal Organ Preserving ECMO in Non–Heart‐Beating Mouse. Thorac Cardiovasc Surg 2021. [DOI: 10.1055/s-0041-1725789] [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: 10/21/2022]
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Madrahimov N, Du S, Cristaldo RB, Keller D, Malikov M, Zaiatc E, Klapproth A, Penov K, Hamouda K, Leyh R, Bening C. Mouse Model of Heart Organ Care System to Study Ex Vivo Cardio Protection and Reperfusion in Cadaveric Heart Donation. Thorac Cardiovasc Surg 2021. [DOI: 10.1055/s-0041-1725618] [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: 10/21/2022]
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Du S, Li J, Bian N. A compression method for DNA. PLoS One 2020; 15:e0238220. [PMID: 33237908 PMCID: PMC7688149 DOI: 10.1371/journal.pone.0238220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Accepted: 08/12/2020] [Indexed: 11/18/2022] Open
Abstract
The development of high-throughput sequencing technology has generated huge amounts DNA data. Many general compression algorithms are not ideal for compressing DNA data, such as the LZ77 algorithm. On the basis of Nour and Sharawi's method,we propose a new, lossless and reference-free method to increase the compression performance. The original sequences are converted into eight intermediate files and six final files. Then, the LZ77 algorithm is used to compress the six final files. The results show that the compression time is decreased by 83% and the decompression time is decreased by 54% on average.The compression rate is almost the same as Nour and Sharawi's method which is the fastest method so far. What's more, our method has a wider range of application than Nour and Sharawi's method. Compared to some very advanced compression tools at present, such as XM and FCM-Mx, the time for compression in our method is much smaller, on average decreasing the time by more than 90%.
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Affiliation(s)
- Shengwang Du
- College of Computer Science and Electronic Engineering, Hunan University, Changsha, Hunan, China
- * E-mail:
| | - Junyi Li
- College of Computer Science and Electronic Engineering, Hunan University, Changsha, Hunan, China
| | - Naizheng Bian
- College of Computer Science and Electronic Engineering, Hunan University, Changsha, Hunan, China
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Shen SX, Zhao ZL, Du S, Shi PF, Ding SK, Wang GG, Wang LX. [The role of CT coronary angiography in improving the positive rate of coronary angiography in patients with low-or moderate-risk non-ST segment elevation myocardial infarction]. Zhonghua Yi Xue Za Zhi 2020; 100:3255-3260. [PMID: 33167114 DOI: 10.3760/cma.j.cn112137-20200407-01096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate whether CT coronary angiography (CTA) can safely and effectively reduce the number of invasive coronary angiography (ICA) in patients with non-ST-segment elevation myocardial infarction (NSTEMI) whose Grace score is low-or moderate-risk, and increase ICA positive rate. Methods: One hundred and two NSTEMI patients, including 61 males and 41 females, aged 38-80 (58±12) years, were prospectively included and treated in Henan Provincial People's Hospital from February 2017 to February 2018. By using random number method, the patients were divided into control group (51 cases) and experimental group (51 cases). Patients in the control group were arranged for elective ICA examination according to the risk stratification. If further intervention or surgical treatment was required, the ICA examination was positive; in the experimental group, the CTA examination was completed through the green channel first. If the CTA showed that the main coronary artery and its main branches were severe or extreme stenosis, further ICA examination was arranged; otherwise, a secondary prophylactic drug treatment was developed and the patients were then discharged and followed up for 1 year. ICA number, ICA positive rate, length of hospital stay, hospital cost, hospital anxiety and depression score (HADS), major cardiovascular events (MACE) within 1 year, and other serious adverse events related to examination or surgery were compared between the two groups. Results: A total of 37 patients in the experimental group underwent ICA, and the positive rate of ICA was 94.59% (35/37), which was significantly higher than that of the control group [62.75% (32/51)] (P<0.05). The average length of hospital stay and the HADS score before ICA in the experimental group were significantly lower than those in the control group [(3.8±2.2) d vs (4.8±2.4) d; 8.8±4.5 vs 11.4±6.8] (all P<0.05). There was no significant difference in the cumulative incidence of MACE (3 cases vs 5 cases, P=0.423) and other serious adverse events (8 cases vs 10 cases, P=0.548) within 1 year between the two groups. Conclusion: CTA significantly reduces the number of ICA and the average length of hospital stay, and increases the positive rate of ICA in NSTEMI patients whose Grace score is low-or moderate-risk. There is no increase in cardiovascular risks within 1 year.
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Affiliation(s)
- S X Shen
- Department of Cardiology, People's Hospital of Zhengzhou University, Zhengzhou 450003, China
| | - Z L Zhao
- Department of Cardiology, People's Hospital of Zhengzhou University, Zhengzhou 450003, China
| | - S Du
- Department of Cardiology, People's Hospital of Zhengzhou University, Zhengzhou 450003, China
| | - P F Shi
- International Medical Center, People's Hospital of Zhengzhou University, Zhengzhou 450003, China
| | - S K Ding
- Department of Cardiology, People's Hospital of Zhengzhou University, Zhengzhou 450003, China
| | - G G Wang
- Department of Cardiology, People's Hospital of Zhengzhou University, Zhengzhou 450003, China
| | - L X Wang
- Department of Cardiology, People's Hospital of Zhengzhou University, Zhengzhou 450003, China
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Zhang H, Sun J, Du S, Zeng Z. PO-1039: Lymphopenia and worse OS are associated with GTV and fraction in patients with HCC treated with EBRT. Radiother Oncol 2020. [DOI: 10.1016/s0167-8140(21)01056-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Du S, Chen G, Yuan B, Hu Y, Yang P, Chen Y, Zhao Q, Zhou J, Fan J, Zeng Z. DNA Sensing And Associated Type 1 Interferon Signaling Contributes To Progression Of Radiation-Induced Liver Injury. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.1624] [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: 11/24/2022]
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Du S, Chen Y, Chiang C, Shi G, Zhang W, Yang P, Hu Y, Chan A, Kong F, Zeng Z. Increased Serum Type I Interferon Level May Predict Outcome in Hepatocellular Carcinoma Patients Treated with Radiotherapy. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.2243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Zhao H, Yan S, Zhang F, Wright JD, Hou JY, Cata JP, Cai X, Xiu D, Mao Y, Zhang B, Du S, Li M, Zhang H, Cai J. Guidance for safely performing oncologic surgery during the COVID-19 pandemic. Br J Surg 2020; 107:e401-e402. [PMID: 32720733 PMCID: PMC7929254 DOI: 10.1002/bjs.11845] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Accepted: 06/03/2020] [Indexed: 12/28/2022]
Affiliation(s)
- H Zhao
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - S Yan
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - F Zhang
- Hubei Cancer Hospital, Wuhan, China
| | - J D Wright
- Columbia University Irving Medical Center, New York, NY, USA
| | - J Y Hou
- Columbia University Irving Medical Center, New York, NY, USA
| | - J P Cata
- The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - X Cai
- Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - D Xiu
- Peking University Third Hospital, Beijing, China
| | - Y Mao
- Peking Union Medical College Hospital, Peking Union Medical College, Beijing, China
| | - B Zhang
- Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology, Wuhan, China
| | - S Du
- Peking Union Medical College Hospital, Peking Union Medical College, Beijing, China
| | - M Li
- Peking University Third Hospital, Beijing, China
| | - H Zhang
- Columbia University Irving Medical Center, New York, NY, USA
| | - J Cai
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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Du S, Elliman S, Zeugolis D, O'Brien T. Macromolecular crowding enhances and accelerates extracellular matrix deposition in human umbilical cord derived mesenchymal stem cell cultures. Cytotherapy 2020. [DOI: 10.1016/j.jcyt.2020.03.369] [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: 10/24/2022]
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Liu X, He X, Chen Z, Du S, Yang Y, Shu Y, Li G, Hu Y, Tong R, Li G, Qian Q. SAT-186 Extra-potassium Load from Commonly Used Traditional Chinese Medicines Was an Urgent Problem for CKD Patients. Kidney Int Rep 2020. [DOI: 10.1016/j.ekir.2020.02.198] [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: 11/30/2022] Open
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Mei Y, Zhou Y, Zhang S, Li J, Liao K, Yan H, Zhu SL, Du S. Einstein-Podolsky-Rosen Energy-Time Entanglement of Narrow-Band Biphotons. Phys Rev Lett 2020; 124:010509. [PMID: 31976739 DOI: 10.1103/physrevlett.124.010509] [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] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Indexed: 06/10/2023]
Abstract
We report the direct characterization of energy-time entanglement of narrow-band biphotons produced from spontaneous four-wave mixing in cold atoms. The Stokes and anti-Stokes two-photon temporal correlation is measured by single-photon counters with nanosecond temporal resolution, and their joint spectrum is determined by using a narrow linewidth optical cavity. The energy-time entanglement is verified by the joint frequency-time uncertainty product of 0.063±0.0044, which does not only violate the separability criterion but also satisfies the continuous variable Einstein-Podolsky-Rosen steering inequality.
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Affiliation(s)
- Yefeng Mei
- Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, GPETR Center for Quantum Precision Measurement and SPTE, South China Normal University, Guangzhou 510006, China
- Department of Physics, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
- William Mong Institute of Nano Science and Technology, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Yiru Zhou
- Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, GPETR Center for Quantum Precision Measurement and SPTE, South China Normal University, Guangzhou 510006, China
| | - Shanchao Zhang
- Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, GPETR Center for Quantum Precision Measurement and SPTE, South China Normal University, Guangzhou 510006, China
| | - Jianfeng Li
- Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, GPETR Center for Quantum Precision Measurement and SPTE, South China Normal University, Guangzhou 510006, China
| | - Kaiyu Liao
- Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, GPETR Center for Quantum Precision Measurement and SPTE, South China Normal University, Guangzhou 510006, China
| | - Hui Yan
- Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, GPETR Center for Quantum Precision Measurement and SPTE, South China Normal University, Guangzhou 510006, China
| | - Shi-Liang Zhu
- Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, GPETR Center for Quantum Precision Measurement and SPTE, South China Normal University, Guangzhou 510006, China
- National Laboratory of Solid State Microstructures, School of Physics, Nanjing University, Nanjing 210093, China
| | - Shengwang Du
- Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, GPETR Center for Quantum Precision Measurement and SPTE, South China Normal University, Guangzhou 510006, China
- Department of Physics, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
- William Mong Institute of Nano Science and Technology, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
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Pan H, Yu M, Chen M, Wang X, Zhang H, Du S, Yu S. miR-126 suppresses neuronal apoptosis in rats after cardiopulmonary resuscitation via regulating p38MAPK. Hum Exp Toxicol 2019; 39:563-574. [PMID: 31876177 DOI: 10.1177/0960327119895561] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
In this study, we aimed to evaluate the effect of microRNA-126 (miR-126) on neuronal apoptosis in cardiopulmonary resuscitation rats and to explore the related molecular mechanism. The expression of miR-126 in brain tissues of rats after cardiopulmonary resuscitation was measured by real-time fluorescence quantitative polymerase chain reaction (RT-qPCR). The basic parameters of cardiopulmonary resuscitation were recorded by miR-126 mimic injection in rats after cardiopulmonary resuscitation. Hematoxylin-eosin staining was used to observe the pathological changes of hippocampus. Immunohistochemistry was used to observe the expression of p38 and caspase-3 protein. Furthermore, the expression of p38 mitogen-activated protein kinase (p38MAPK), Jun N-terminal kinase (JNK), and extracellular signal-regulated kinase 1/2 (ERK1/2) in rat hippocampus was detected by RT-qPCR and Western blot. In order to confirm whether miR-126 takes part in the p38MAPK pathway in the hippocampus of rats after cardiopulmonary resuscitation, the p38MAPK pathway inhibitor (SB203580) and activator (anisomycin) were added. The results showed overexpression of miR-126 could significantly increase the neurological function score and improve the pathological morphology of hippocampus in rats after cardiopulmonary resuscitation. miR-126 overexpression also could reduce the neuronal apoptosis, p38, and caspase-3 expression in the hippocampus. Moreover, the p38MAPK and JNK expression was downregulated and ERK1/2 expression was upregulated after miR-126 mimic injection (p < 0.05). The results of inhibition of p38MAPK pathway were consistent with those of overexpression of miR-126 (p > 0.05). This study indicated miR-126 could significantly reduce neuronal apoptosis of hippocampus in rats after cardiopulmonary resuscitation, which might be involved in the regulation of p38MAPK pathway.
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Affiliation(s)
- H Pan
- Department of Anesthesiology, Weihai Municipal Hospital, Weihai, Shandong, China
| | - M Yu
- Department of Anesthesiology, Weihai Municipal Hospital, Weihai, Shandong, China
| | - M Chen
- Department of Anesthesiology, Weihai Municipal Hospital, Weihai, Shandong, China
| | - X Wang
- Department of Anesthesiology, Weihai Municipal Hospital, Weihai, Shandong, China
| | - H Zhang
- Department of Anesthesiology, Weihai Municipal Hospital, Weihai, Shandong, China
| | - S Du
- Department of Anesthesiology, Weihai Municipal Hospital, Weihai, Shandong, China
| | - S Yu
- Department of Anesthesiology, Weihai Municipal Hospital, Weihai, Shandong, China
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Chen Y, Yu D, Wang L, Du S. Identification of E2F8 as a Transcriptional Regulator of Gluconeogenesis in Primary Mouse Hepatocytes. Biochemistry (Mosc) 2019; 84:1529-1536. [PMID: 31870257 DOI: 10.1134/s0006297919120125] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The dysregulation of hepatic gluconeogenesis is a major factor in the pathogenesis of type 2 diabetes mellitus (T2DM). Hepatic gluconeogenesis is known to be tightly regulated at the transcription/expression level. The aim of this study was to evaluate the role of the E2F8 transcription factor in glucose metabolism. Here, we found that hepatic expression levels of E2F8 were increased in db/db and high-fat-diet-induced obese mice. Adenovirus-mediated overexpression of E2F8 in primary mouse hepatocytes upregulated expression of gluconeogenic genes, including those for PGC-1α, PEPCK, and G6Pase, subsequently increasing cellular glucose output. We demonstrated that E2F8 overexpression impairs insulin sensitivity in vitro. Furthermore, knockdown of E2F8 expression increased insulin sensitivity in primary hepatocytes. In summary, these findings indicated that E2F8 is involved in gluconeogenesis and insulin resistance and may represent a new therapeutic target in T2DM prevention.
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Affiliation(s)
- Y Chen
- Emergency and Clinical Care Medicine Center, The Second Affiliated Hospital of Dalian Medical University, Dalian, 116023, China
| | - D Yu
- Emergency and Clinical Care Medicine Center, The Second Affiliated Hospital of Dalian Medical University, Dalian, 116023, China
| | - L Wang
- Emergency and Clinical Care Medicine Center, The Second Affiliated Hospital of Dalian Medical University, Dalian, 116023, China.
| | - S Du
- Emergency and Clinical Care Medicine Center, The Second Affiliated Hospital of Dalian Medical University, Dalian, 116023, China.
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Plaster B, Adamek E, Allgeier B, Anaya J, Back H, Bagdasarova Y, Berguno D, Blatnik M, Boissevain J, Bowles T, Broussard L, Brown MP, Carr R, Clark D, Clayton S, Cude-Woods C, Currie S, Dees E, Ding X, Du S, Filippone B, García A, Geltenbort P, Hasan S, Hawari A, Hickerson K, Hill R, Hino M, Hoagland J, Hoedl S, Hogan G, Hona B, Hong R, Holley A, Ito T, Kawai T, Kirch K, Kitagaki S, Knecht A, Lamoreaux S, Liu CY, Liu J, Makela M, Mammei R, Martin J, Meier N, Melconian D, Mendenhall M, Moore S, Morris C, Mortensen R, Nepal S, Nouri N, Pattie R, Pérez Galván A, Phillips II D, Pichlmaier A, Picker R, Pitt M, Ramsey J, Rios R, Russell R, Sabourov K, Sallaska A, Salvat D, Saunders A, Schmid R, Seestrom S, Servicky C, Sharapov E, Sjue S, Slutsky S, Smith D, Sondheim W, Sun X, Swank C, Swift G, Tatar E, Teasdale W, Terai C, Tipton B, Utsuro M, Vogelaar R, VornDick B, Wang Z, Wehring B, Wexler J, Womack T, Wrede C, Xu Y, Yan H, Young A, Yuan J, Zeck B. Final results for the neutron β-asymmetry parameter A0 from the UCNA experiment. EPJ Web Conf 2019. [DOI: 10.1051/epjconf/201921904004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The UCNA experiment was designed to measure the neutron β-asymmetry parameter A0 using polarized ultracold neutrons (UCN). UCN produced via downscattering in solid deuterium were polarized via transport through a 7 T magnetic field, and then directed to a 1 T solenoidal electron spectrometer, where the decay electrons were detected in electron detector packages located on the two ends of the spectrometer. A value for A0 was then extracted from the asymmetry in the numbers of counts in the two detector packages. We summarize all of the results from the UCNA experiment, obtained during run periods in 2007, 2008–2009, 2010, and 2011–2013, which ultimately culminated in a 0.67% precision result for A0.
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Du S, You S, Bao J, Gegentu, Jia Y, Cai Y. Evaluation of the growth performance and meat quality of Mongolian lamb fed grass, hay or pellets of Inner Mongolian native grass. Small Rumin Res 2019. [DOI: 10.1016/j.smallrumres.2019.10.008] [Citation(s) in RCA: 11] [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] [Indexed: 11/28/2022]
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Zhang S, Zhou Y, Mei Y, Liao K, Wen YL, Li J, Zhang XD, Du S, Yan H, Zhu SL. δ-Quench Measurement of a Pure Quantum-State Wave Function. Phys Rev Lett 2019; 123:190402. [PMID: 31765181 DOI: 10.1103/physrevlett.123.190402] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Indexed: 06/10/2023]
Abstract
The measurement of a quantum state wave function not only acts as a fundamental part in quantum physics but also plays an important role in developing practical quantum technologies. Conventional quantum state tomography has been widely used to estimate quantum wave functions, which usually requires complicated measurement techniques. The recent weak-value-based quantum measurement circumvents this resource issue but relies on an extra pointer space. Here, we theoretically propose and then experimentally demonstrate a direct and efficient measurement strategy based on a δ-quench probe: by quenching its complex probability amplitude one by one (δ quench) in the given basis, we can directly obtain the quantum wave function of a pure ensemble by projecting the quenched state onto a postselection state. We confirm its power by experimentally measuring photonic complex temporal wave functions. This new method is versatile and can find applications in quantum information science and engineering.
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Affiliation(s)
- Shanchao Zhang
- Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, GPETR Center for Quantum Precision Measurement and SPTE, South China Normal University, Guangzhou 510006, China
| | - Yiru Zhou
- Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, GPETR Center for Quantum Precision Measurement and SPTE, South China Normal University, Guangzhou 510006, China
| | - Yefeng Mei
- Department of Physics & William Mong Institute of Nano Science and Technology, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong S.A.R., China
| | - Kaiyu Liao
- Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, GPETR Center for Quantum Precision Measurement and SPTE, South China Normal University, Guangzhou 510006, China
| | - Yong-Li Wen
- National Laboratory of Solid State Microstructures, School of Physics, Nanjing University, Nanjing 210093, China
| | - Jianfeng Li
- Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, GPETR Center for Quantum Precision Measurement and SPTE, South China Normal University, Guangzhou 510006, China
| | - Xin-Ding Zhang
- Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, GPETR Center for Quantum Precision Measurement and SPTE, South China Normal University, Guangzhou 510006, China
| | - Shengwang Du
- Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, GPETR Center for Quantum Precision Measurement and SPTE, South China Normal University, Guangzhou 510006, China
- Department of Physics & William Mong Institute of Nano Science and Technology, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong S.A.R., China
| | - Hui Yan
- Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, GPETR Center for Quantum Precision Measurement and SPTE, South China Normal University, Guangzhou 510006, China
| | - Shi-Liang Zhu
- Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, GPETR Center for Quantum Precision Measurement and SPTE, South China Normal University, Guangzhou 510006, China
- National Laboratory of Solid State Microstructures, School of Physics, Nanjing University, Nanjing 210093, China
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Jiang Y, Mei Y, Zuo Y, Zhai Y, Li J, Wen J, Du S. Anti-Parity-Time Symmetric Optical Four-Wave Mixing in Cold Atoms. Phys Rev Lett 2019; 123:193604. [PMID: 31765185 DOI: 10.1103/physrevlett.123.193604] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Indexed: 06/10/2023]
Abstract
Non-Hermitian optical systems with parity-time (PT) symmetry have recently revealed many intriguing prospects that outperform conservative structures. The previous works are mostly rooted in complex arrangements with controlled gain-loss interplay. Here, we demonstrate anti-PT symmetry inherent in the nonlinear optical interaction based upon forward optical four-wave mixing in a laser-cooled atomic ensemble with negligible linear gain and loss. We observe that the pair of frequency modes undergo a nontrivial anti-PT phase transition between coherent power oscillation and optical parametric amplification in presence of a large phase mismatch.
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Affiliation(s)
- Yue Jiang
- Department of Physics, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Yefeng Mei
- Department of Physics, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Ying Zuo
- Department of Physics, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Yanhua Zhai
- Department of Physics, Kennesaw State University, Marietta, Georgia 30060, USA
| | - Jensen Li
- Department of Physics, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Jianming Wen
- Department of Physics, Kennesaw State University, Marietta, Georgia 30060, USA
| | - Shengwang Du
- Department of Physics, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
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Yan S, Zhang Y, Bi X, Zhao J, Du S, Huang Z, Zhang Y, Liu D, Li Z, Zhou J, Cai J, Zhao H. A multicenter, randomized, controlled, phase II trial exploring adjuvant combined therapy of apatinib and SHR-1210 (anti-PD-1), in patients with hepatocellular carcinoma at high risk of recurrence after radical resection. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz438.022] [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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Chen L, Du S, Qu W, Guo F, Wang G. Biosynthetic potential of culturable bacteria associated with
Apostichopus japonicus. J Appl Microbiol 2019; 127:1686-1697. [DOI: 10.1111/jam.14453] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Revised: 08/19/2019] [Accepted: 09/06/2019] [Indexed: 11/28/2022]
Affiliation(s)
- L. Chen
- Department of Bioengineering School of Marine Science and Technology Harbin Institute of Technology Weihai China
| | - S. Du
- Department of Bioengineering School of Marine Science and Technology Harbin Institute of Technology Weihai China
| | - W.‐Y. Qu
- Department of Bioengineering School of Marine Science and Technology Harbin Institute of Technology Weihai China
| | - F.‐R. Guo
- Department of Bioengineering School of Marine Science and Technology Harbin Institute of Technology Weihai China
| | - G.‐Y. Wang
- Department of Bioengineering School of Marine Science and Technology Harbin Institute of Technology Weihai China
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Dercle L, Fronheiser M, Lu L, Du S, Hayes W, Leung D, Roy A, Schwartz L, Zhao B. Radiomic signatures for identification of tumors sensitive to nivolumab or docetaxel in squamous non-small cell lung cancer (sqNSCLC). Ann Oncol 2019. [DOI: 10.1093/annonc/mdz268.037] [Citation(s) in RCA: 1] [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: 11/13/2022] Open
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Lu J, Persson I, Lind H, Palisaitis J, Li M, Li Y, Chen K, Zhou J, Du S, Chai Z, Huang Z, Hultman L, Eklund P, Rosen J, Huang Q, Persson POÅ. Ti n+1C n MXenes with fully saturated and thermally stable Cl terminations. Nanoscale Adv 2019; 1:3680-3685. [PMID: 36133532 PMCID: PMC9417890 DOI: 10.1039/c9na00324j] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Accepted: 07/08/2019] [Indexed: 05/19/2023]
Abstract
MXenes are a rapidly growing family of 2D materials that exhibit a highly versatile structure and composition, allowing for significant tuning of the materials properties. These properties are, however, ultimately limited by the surface terminations, which are typically a mixture of species, including F and O that are inherent to the MXene processing. Other and robust terminations are lacking. Here, we apply high-resolution scanning transmission electron microscopy (STEM), corresponding image simulations and first-principles calculations to investigate the surface terminations on MXenes synthesized from MAX phases through Lewis acidic melts. The results show that atomic Cl terminates the synthesized MXenes, with mere residual presence of other termination species. Furthermore, in situ STEM-electron energy loss spectroscopy (EELS) heating experiments show that the Cl terminations are stable up to 750 °C. Thus, we present an attractive new termination that widely expands the MXenes' functionalization space and enables new applications.
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Affiliation(s)
- J Lu
- Thin Film Physics Division, Department of Physics, Chemistry and Biology (IFM), Linköping University SE-581 83 Linköping Sweden
| | - I Persson
- Thin Film Physics Division, Department of Physics, Chemistry and Biology (IFM), Linköping University SE-581 83 Linköping Sweden
| | - H Lind
- Thin Film Physics Division, Department of Physics, Chemistry and Biology (IFM), Linköping University SE-581 83 Linköping Sweden
| | - J Palisaitis
- Thin Film Physics Division, Department of Physics, Chemistry and Biology (IFM), Linköping University SE-581 83 Linköping Sweden
| | - M Li
- Engineering Laboratory of Advanced Energy Materials (FiNE Lab.), Ningbo Institute of Industrial Technology, Chinese Academy of Sciences Ningbo Zhejiang 315201 China
| | - Y Li
- Engineering Laboratory of Advanced Energy Materials (FiNE Lab.), Ningbo Institute of Industrial Technology, Chinese Academy of Sciences Ningbo Zhejiang 315201 China
| | - K Chen
- Engineering Laboratory of Advanced Energy Materials (FiNE Lab.), Ningbo Institute of Industrial Technology, Chinese Academy of Sciences Ningbo Zhejiang 315201 China
| | - J Zhou
- Thin Film Physics Division, Department of Physics, Chemistry and Biology (IFM), Linköping University SE-581 83 Linköping Sweden
- Engineering Laboratory of Advanced Energy Materials (FiNE Lab.), Ningbo Institute of Industrial Technology, Chinese Academy of Sciences Ningbo Zhejiang 315201 China
| | - S Du
- Engineering Laboratory of Advanced Energy Materials (FiNE Lab.), Ningbo Institute of Industrial Technology, Chinese Academy of Sciences Ningbo Zhejiang 315201 China
| | - Z Chai
- Engineering Laboratory of Advanced Energy Materials (FiNE Lab.), Ningbo Institute of Industrial Technology, Chinese Academy of Sciences Ningbo Zhejiang 315201 China
| | - Z Huang
- Engineering Laboratory of Advanced Energy Materials (FiNE Lab.), Ningbo Institute of Industrial Technology, Chinese Academy of Sciences Ningbo Zhejiang 315201 China
| | - L Hultman
- Thin Film Physics Division, Department of Physics, Chemistry and Biology (IFM), Linköping University SE-581 83 Linköping Sweden
| | - P Eklund
- Thin Film Physics Division, Department of Physics, Chemistry and Biology (IFM), Linköping University SE-581 83 Linköping Sweden
| | - J Rosen
- Thin Film Physics Division, Department of Physics, Chemistry and Biology (IFM), Linköping University SE-581 83 Linköping Sweden
| | - Q Huang
- Engineering Laboratory of Advanced Energy Materials (FiNE Lab.), Ningbo Institute of Industrial Technology, Chinese Academy of Sciences Ningbo Zhejiang 315201 China
| | - P O Å Persson
- Thin Film Physics Division, Department of Physics, Chemistry and Biology (IFM), Linköping University SE-581 83 Linköping Sweden
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Huang Y, Ma T, Lau PK, Wang J, Zhao T, Du S, Loy MMT, Guo Y. Visualization of Protein Sorting at the Trans-Golgi Network and Endosomes Through Super-Resolution Imaging. Front Cell Dev Biol 2019; 7:181. [PMID: 31552246 PMCID: PMC6733968 DOI: 10.3389/fcell.2019.00181] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Accepted: 08/19/2019] [Indexed: 12/19/2022] Open
Abstract
The trans-Golgi network (TGN) and endosomes are essential protein sorting stations in the secretory transport pathway. Protein sorting is fundamentally a process of spatial segregation, but the spatial relationships among the proteins that constitute the sorting machinery have not been systematically analyzed at high resolution in mammalian cells. Here, using two-color STORM imaging, we show that the TGN/endosome-localized cargo adaptors, AP-1, GGA2 and epsinR, form elongated structures of over 250 nm in length at the juxta-nuclear Golgi area. Many of these structures are associated with clathrin. We found that AP-1 is spatially segregated from AP-3 and GGA2, whereas a fraction of AP-1 and GGA2 punctae are associated with epsinR. Moreover, we observed that the planar cell polarity cargo proteins, Vangl2 and Frizzled6 associate with different cargo adaptors—AP-1 and GGA2 or epsinR, respectively—when exiting the TGN. Knockdown analysis confirms the functional significance of this segregation. Our data indicates that TGN/endosome-localized cargo adaptors have distinct spatial relationships. The spatially segregated cargo adaptors GGA2 and AP-1 regulate sorting of Frizzled6 and Vangl2, respectively and spatially associated cargo adaptors can cooperatively regulate a specific sorting process.
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Affiliation(s)
- Yan Huang
- Division of Life Science, Hong Kong University of Science and Technology, Hong Kong, China
| | - Tianji Ma
- Division of Life Science, Hong Kong University of Science and Technology, Hong Kong, China
| | - Pik Ki Lau
- Division of Life Science, Hong Kong University of Science and Technology, Hong Kong, China
| | - Jinhui Wang
- Division of Life Science, Hong Kong University of Science and Technology, Hong Kong, China
| | - Teng Zhao
- Light Innovation Technology Limited, Hong Kong, China
| | - Shengwang Du
- Department of Chemical and Biological Engineering, Hong Kong University of Science and Technology, Hong Kong, China.,Department of Physics, Hong Kong University of Science and Technology, Hong Kong, China
| | - Michael M T Loy
- Department of Physics, Hong Kong University of Science and Technology, Hong Kong, China
| | - Yusong Guo
- Division of Life Science, Hong Kong University of Science and Technology, Hong Kong, China.,Hong Kong University of Science and Technology Shenzhen Research Institute, Shenzhen, China
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Yu Y, Zhang Y, Wu J, Sun Y, Xiong Z, Niu F, Lei L, Du S, Chen P, Yang Z. Genetic polymorphisms in IL1B predict susceptibility to steroid-induced osteonecrosis of the femoral head in Chinese Han population. Osteoporos Int 2019; 30:871-877. [PMID: 30852631 DOI: 10.1007/s00198-019-04835-9] [Citation(s) in RCA: 10] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Accepted: 01/02/2019] [Indexed: 01/23/2023]
Abstract
UNLABELLED The purpose of this research was to examine if the IL1B gene polymorphism has impact on the risk of steroid-induced ONFH in Chinese population. We found that IL1B rs1143630 decreased the SANFH's risk and IL1B rs2853550 increased the risk of steroid-induced ONFH. So, we guess that IL1B gene influences the genetic susceptibility of steroid-induced ONFH. INTRODUCTION Genetic polymorphisms in IL1B gene could be related in the pathogenesis of osteonecrosis. Discusses on the relationship between the IL1B gene and steroid-induced osteonecrosis of the femoral head (steroid-induced ONFH) is still less in Chinese Han population. So, in this research, we want to examine whether the IL1B gene polymorphism has impact on the risk of steroid-induced ONFH in Chinese population. METHODS A total of 286 steroid-induced ONFH patients and 441 controls were recruited, and seven SNPs (rs2853550, rs1143643, rs3136558, rs1143630, rs1143627, rs16944, and rs1143623) in IL1B gene were selected; unconditional logistic regression analysis was used to research the influence on the risk of steroid-induced ONFH. Functional annotations of IL1B variants were performed by RegulomeDB and HaploReg. RESULTS rs1143630 (A>C) in the IL1B gene decreased the risk of steroid-induced ONFH in the allele model (OR = 0.69, 95%CI 0.51-0.93, p = 0.014). Further genetic model analyses found that IL1B rs2853550 AG genotype increased the risk of steroid-induced ONFH compared with the people who are carriers of the IL1B rs2853550 GG genotype (OR = 1.69, 95%CI 1.16-2.46, p = 0.012). In the dominant model, IL1B rs1143630 GG-GT genotype decreased the risk of steroid-induced ONFH (OR = 0.62, 95%CI 0.44-0.87, p = 0.0051). And further haplotype analysis was performed, while the result was not significant. Using RegulomeDB and HaploReg, rs2853550 is likely to affect TF binding, any motif and DNase peak. CONCLUSIONS We guess that IL1B gene influences the genetic susceptibility of steroid-induced ONFH.
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Affiliation(s)
- Y Yu
- Department of Clinical Laboratory, HongHui Affiliated Hospital of Xi'an Jiaotong University College of Medicine, Xi'an, 710054, Shaanxi, China
| | - Y Zhang
- Department of Orthopedics, Suizhou Hospital, Hubei University Of Medicine, Suizhou, 441300, Hubei, China
| | - J Wu
- Key Laboratory of Resource Biology and Biotechnology in Western China (Northwest University), Ministry of Education, School of Life Sciences, Northwest University, Xi'an, 710069, Shaanxi, China
| | - Y Sun
- Key Laboratory of Resource Biology and Biotechnology in Western China (Northwest University), Ministry of Education, School of Life Sciences, Northwest University, Xi'an, 710069, Shaanxi, China
| | - Z Xiong
- Key Laboratory of Resource Biology and Biotechnology in Western China (Northwest University), Ministry of Education, School of Life Sciences, Northwest University, Xi'an, 710069, Shaanxi, China
| | - F Niu
- Key Laboratory of Resource Biology and Biotechnology in Western China (Northwest University), Ministry of Education, School of Life Sciences, Northwest University, Xi'an, 710069, Shaanxi, China
| | - L Lei
- Key Laboratory of Resource Biology and Biotechnology in Western China (Northwest University), Ministry of Education, School of Life Sciences, Northwest University, Xi'an, 710069, Shaanxi, China
| | - S Du
- Key Laboratory of Resource Biology and Biotechnology in Western China (Northwest University), Ministry of Education, School of Life Sciences, Northwest University, Xi'an, 710069, Shaanxi, China
| | - P Chen
- Key Laboratory of Resource Biology and Biotechnology in Western China (Northwest University), Ministry of Education, School of Life Sciences, Northwest University, Xi'an, 710069, Shaanxi, China
| | - Z Yang
- Department of Osteonecrosis and Joint Reconstruction Ward, HongHui Affiliated Hospital of Xi'an Jiaotong University College of Medicine, #555 Youyi East Road, Xi'an, 710054, Shaanxi, China.
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Du S, Sun H, Gao S, Xin J, Lu Z, Chen Z, Pan S, Guo Q. Relationship between 18F-FDG PET metabolic parameters and MRI intravoxel incoherent motion (IVIM) histogram parameters and their correlations with clinicopathological features of cervical cancer: evidence from integrated PET/MRI. Clin Radiol 2019; 74:178-186. [DOI: 10.1016/j.crad.2018.11.003] [Citation(s) in RCA: 4] [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] [Received: 06/12/2018] [Accepted: 11/09/2018] [Indexed: 12/14/2022]
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48
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Zhao ZL, Du S, Shen SX, Luo P, Ding SK, Wang GG, Wang LX. [Biomarkers screening for viral myocarditis through proteomics analysis of plasma exosomes]. Zhonghua Yi Xue Za Zhi 2019; 99:343-348. [PMID: 30772974 DOI: 10.3760/cma.j.issn.0376-2491.2019.05.005] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To compare and analyze the differentially expressed plasma exosomic proteome between healthy control group (Control group) and viral myocarditis group (VMC group) to search for biomarkers that maybe used for early diagnosis of VMC. Methods: Fifty plasma samples of Control group and VMC group were collected respectively from Henan Provincial People's Hospital (from January 2016 to December 2017), and then 5 samples (1 ml) of each group were selected randomly, after exosomes extraction with ultra-centrifugation, difference gel electrophoresis (DIGE) was used to isolate the total proteins, and then the protein spots with more than 2-fold changes between VMC and Control group were picked up after the software analysis, afterward, the varied proteins were identified by MALDI-TOF/TOF mass spectrometry. Finally, the specifically related protein was selected to be verified by ELISA with the plasma exosomic samples of Control (n=40) and VMC (n=40). Results: A total of 10 varied protein spots were found including 8 up-regulated proteins and 2 down-regulated proteins between VMC and Control group. After MS analysis, the up-regulated proteins in VMC group contained KRT2, KRT5, KRT9, KRT77, KRT78, AZGP1, HP and RBP4, whereas the down-regulated ones were CD5L and C1QB. RBP4 was selected to validate by ELISA analysis, and the corresponding results showed that RBP4 was increased specifically in plasma exosomes of VMC group (P<0.05) after comparing with Control group, which was consistent with DIGE. Conclusion: Ten proteins related to VMC are detected in total, and RBP4 might serve as a potential specific biomarker for early screening and diagnosis of VMC.
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Affiliation(s)
- Z L Zhao
- Department of Cardiology, Henan Provincial People's Hospital, Zhengzhou 450000, China
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Jiang Y, Mei Y, Zou Y, Zuo Y, Du S. Intracavity cold atomic ensemble with high optical depth. Rev Sci Instrum 2019; 90:013105. [PMID: 30709165 DOI: 10.1063/1.5065431] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Accepted: 12/20/2018] [Indexed: 06/09/2023]
Abstract
We describe the apparatus of an optical cavity loaded with cold 85Rb atoms of high optical depth (OD) in the weak coupling regime. The relevant cavity-atom parameters are the single-photon Rabi frequency g0 = 2π × 0.25 MHz, the cavity power decay rate κ = 2π × 9.0 MHz, and the atomic excited state decay rate Γ = 2π × 5.75 MHz. In this bad-cavity configuration where the atomic natural linewidth (Γ/2π) is less than the cavity linewidth (κ/2π), the cavity enhancement factor for the longitudinal OD is about 188. We obtain a cavity enhanced OD up to 7600, corresponding to an atomic ensemble with a bare single-pass OD of 40, coupled to the cavity mode. Our intracavity cold atomic ensemble with high OD may have many applications in studying collective atom-light interaction inside an optical cavity.
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Affiliation(s)
- Yue Jiang
- Department of Physics, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Yefeng Mei
- Department of Physics, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Yueyang Zou
- Department of Physics, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Ying Zuo
- Department of Physics, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Shengwang Du
- Department of Physics, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
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50
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Yu H, Xue C, Long M, Jia H, Xue G, Du S, Coello Y, Ishibashi T. TEFM Enhances Transcription Elongation by Modifying mtRNAP Pausing Dynamics. Biophys J 2018; 115:2295-2300. [PMID: 30514634 DOI: 10.1016/j.bpj.2018.11.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Revised: 10/25/2018] [Accepted: 11/05/2018] [Indexed: 10/27/2022] Open
Abstract
Regulation of transcription elongation is one of the key mechanisms employed to control gene expression. The single-subunit mitochondrial RNA polymerase (mtRNAP) transcribes mitochondrial genes, such as those related to ATP synthesis. We investigated how mitochondrial transcription elongation factor (TEFM) enhances mtRNAP transcription elongation using a single-molecule optical-tweezers transcription assay, which follows transcription dynamics in real time and allows the separation of pause-free elongation from transcriptional pauses. We found that TEFM enhances the stall force of mtRNAP. Although TEFM does not change the pause-free elongation rate, it enhances mtRNAP transcription elongation by reducing the frequency of long-lived pauses and shortening their durations. Furthermore, we demonstrate how mtRNAP passes through the conserved sequence block II, which is the key sequence for the switch between DNA replication and transcription in mitochondria. Our findings elucidate how both TEFM and mitochondrial genomic DNA sequences directly control the transcription elongation dynamics of mtRNAP.
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Affiliation(s)
- Hongwu Yu
- Division of Life Science, Hong Kong University of Science and Technology, Clear Water Bay, NT, Hong Kong, HKSAR, China
| | - Cheng Xue
- Division of Life Science, Hong Kong University of Science and Technology, Clear Water Bay, NT, Hong Kong, HKSAR, China
| | - Mengping Long
- Division of Life Science, Hong Kong University of Science and Technology, Clear Water Bay, NT, Hong Kong, HKSAR, China
| | - Huiqiang Jia
- Division of Life Science, Hong Kong University of Science and Technology, Clear Water Bay, NT, Hong Kong, HKSAR, China
| | - Guosheng Xue
- Division of Life Science, Hong Kong University of Science and Technology, Clear Water Bay, NT, Hong Kong, HKSAR, China; Department of Physics, Hong Kong University of Science and Technology, Clear Water Bay, NT, Hong Kong, HKSAR, China
| | - Shengwang Du
- Department of Physics, Hong Kong University of Science and Technology, Clear Water Bay, NT, Hong Kong, HKSAR, China; Department of Chemical and Biological Engineering, Hong Kong University of Science and Technology, Clear Water Bay, NT, Hong Kong, HKSAR, China
| | - Yves Coello
- Departamento de Ciencias, Sección Química, Pontificia Universidad Católica del Perú PUCP, Lima, Peru
| | - Toyotaka Ishibashi
- Division of Life Science, Hong Kong University of Science and Technology, Clear Water Bay, NT, Hong Kong, HKSAR, China.
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