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Hong H, Habib A, Bi L, Qais DS, Wen L. Hollow Cathode Discharge Ionization Mass Spectrometry: Detection, Quantification and Gas Phase Ion-Molecule Reactions of Explosives and Related Compounds. Crit Rev Anal Chem 2024; 54:148-174. [PMID: 35467991 DOI: 10.1080/10408347.2022.2067467] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Mass spectrometry (MS) has become an essential analytical method in every sector of science and technology. Because of its unique ability to provide direct molecular structure information on analytes, an extra method is rarely required. This review describes fabrication of a variable-pressure hollow cathode discharge (HCD) ion source for MS in detection, quantification and investigation of gas-phase ion molecule reactions of explosives and related compounds using air as a carrier gas. The HCD ion source has been designed in such a way that by altering the ion source pressures, the system can generate both HCD and conventional GD. This design enables for the selective detection and quantification of explosives at trace to ultra-trace levels. The pressure-dependent HCD ion source has also been used to investigate ion-molecule reactions in the gas phase of explosives and related compounds. The mechanism of ion formation in explosive reactions is also discussed.
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Affiliation(s)
- Huanhuan Hong
- The Research Institute of Advanced Technologies, Ningbo University, Ningbo, Zhejiang, China
- China Innovation Instrument Co., Ltd, Ningbo, Zhejiang, China
| | - Ahsan Habib
- The Research Institute of Advanced Technologies, Ningbo University, Ningbo, Zhejiang, China
- Department of Chemistry, University of Dhaka, Dhaka, Bangladesh
| | - Lei Bi
- The Research Institute of Advanced Technologies, Ningbo University, Ningbo, Zhejiang, China
- China Innovation Instrument Co., Ltd, Ningbo, Zhejiang, China
| | | | - Luhong Wen
- The Research Institute of Advanced Technologies, Ningbo University, Ningbo, Zhejiang, China
- China Innovation Instrument Co., Ltd, Ningbo, Zhejiang, China
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2
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Shen Y, Zhou R, Bi L, Huang G, Yang M, Li Z, Yao J, Xian J, Qiu Y, Ye P, Liu Y, Hou Y, Jin H, Wang Y. Synthesis and Evaluation of [ 64Cu]Cu-NOTA-HFn for PET Imaging of Transferrin Receptor 1 Expression in Nasopharyngeal Carcinoma. ACS Omega 2024; 9:17423-17431. [PMID: 38645324 PMCID: PMC11024937 DOI: 10.1021/acsomega.4c00187] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/06/2024] [Revised: 02/29/2024] [Accepted: 03/20/2024] [Indexed: 04/23/2024]
Abstract
As recurrent and metastatic nasopharyngeal carcinoma (NPC) is the most common cause of death among patients with NPC, there is an urgent clinical need for the development of precision diagnosis to guide personalized treatment. Recent emerging evidence substantiates the increased expression of transferrin receptor 1 (also known as cluster of differentiation 71, CD71) within tumor tissues and the inherent targeting capability of natural heavy-chain ferritin (HFn) toward CD71. This study aimed to synthesize and assess a radiotracer ([64Cu]Cu-NOTA-HFn) designed to target CD71 for positron emission tomography (PET) imaging in an NPC tumor-bearing mouse model. The entire radiolabeling process of [64Cu]Cu-NOTA-HFn was completed within 15 min with high yield (>98.5%) and high molar activity (72.96 ± 21.33 GBq/μmol). The in vitro solubility and stability experiments indicated that [64Cu]Cu-NOTA-HFn had a high water solubility (log P = -2.42 ± 0.52, n = 6) and good stability in phosphate-buffered saline (PBS) for up to 48 h. The cell saturation binding assay indicated that [64Cu]Cu-NOTA-HFn had a nanomolar affinity (Kd = 10.9 ± 6.1 nM) for CD71-overexpressing C666-1 cells. To test the target engagement in vivo, prolonged-time PET imaging was performed at 1, 6, 12, 24, and 36 h postinjection (p.i.) of [64Cu]Cu-NOTA-HFn to C666-1 NPC tumor-bearing mice. The C666-1 tumors could be visualized by [64Cu]Cu-NOTA-HFn and blocked by nonradiolabeled HFn. PET imaging quantitative analysis demonstrated that the uptake of [64Cu]Cu-NOTA-HFn in C666-1 tumors peaked at 6 h p.i. and the best radioactive tumor-to-muscle ratio was 10.53 ± 3.11 (n = 3). Ex vivo biodistribution assay at 6 h p.i. showed that the tumor uptakes were 1.43 ± 0.23%ID/g in the nonblock group and 0.92 ± 0.2%ID/g in the block group (n = 3, p < 0.05). Immunohistochemistry and immunofluorescence staining confirmed positive expression of CD71 and the uptake of HFn in C666-1 tumor tissues. In conclusion, our experiments demonstrated that [64Cu]Cu-NOTA-HFn possesses a very high target engagement for CD71-positive NPC tumors and provided a fundamental basis for further clinical translation.
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Affiliation(s)
- Yanfang Shen
- Department
of Nuclear Medicine, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, China
- Guangdong
Provincial Engineering Research Center of Molecular Imaging, The Fifth
Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, China
- Guangdong-Hong
Kong-Macao University Joint Laboratory of Interventional Medicine,
The Fifth Affiliated Hospital, Sun Yat-sen
University, Zhuhai 519000, China
| | - Renwei Zhou
- Department
of Nuclear Medicine, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, China
- Guangdong
Provincial Engineering Research Center of Molecular Imaging, The Fifth
Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, China
- Guangdong-Hong
Kong-Macao University Joint Laboratory of Interventional Medicine,
The Fifth Affiliated Hospital, Sun Yat-sen
University, Zhuhai 519000, China
| | - Lei Bi
- Guangdong
Provincial Engineering Research Center of Molecular Imaging, The Fifth
Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, China
- Guangdong-Hong
Kong-Macao University Joint Laboratory of Interventional Medicine,
The Fifth Affiliated Hospital, Sun Yat-sen
University, Zhuhai 519000, China
| | - Guolong Huang
- Guangdong
Provincial Engineering Research Center of Molecular Imaging, The Fifth
Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, China
- Guangdong-Hong
Kong-Macao University Joint Laboratory of Interventional Medicine,
The Fifth Affiliated Hospital, Sun Yat-sen
University, Zhuhai 519000, China
| | - Min Yang
- Department
of Nuclear Medicine, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, China
- Guangdong
Provincial Engineering Research Center of Molecular Imaging, The Fifth
Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, China
- Guangdong-Hong
Kong-Macao University Joint Laboratory of Interventional Medicine,
The Fifth Affiliated Hospital, Sun Yat-sen
University, Zhuhai 519000, China
| | - Zhijun Li
- Guangdong
Provincial Engineering Research Center of Molecular Imaging, The Fifth
Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, China
- Guangdong-Hong
Kong-Macao University Joint Laboratory of Interventional Medicine,
The Fifth Affiliated Hospital, Sun Yat-sen
University, Zhuhai 519000, China
| | - Jijin Yao
- Guangdong
Provincial Engineering Research Center of Molecular Imaging, The Fifth
Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, China
- Guangdong-Hong
Kong-Macao University Joint Laboratory of Interventional Medicine,
The Fifth Affiliated Hospital, Sun Yat-sen
University, Zhuhai 519000, China
| | - Jianzhong Xian
- Guangdong
Provincial Engineering Research Center of Molecular Imaging, The Fifth
Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, China
- Guangdong-Hong
Kong-Macao University Joint Laboratory of Interventional Medicine,
The Fifth Affiliated Hospital, Sun Yat-sen
University, Zhuhai 519000, China
| | - Yifan Qiu
- Guangdong
Provincial Engineering Research Center of Molecular Imaging, The Fifth
Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, China
- Guangdong-Hong
Kong-Macao University Joint Laboratory of Interventional Medicine,
The Fifth Affiliated Hospital, Sun Yat-sen
University, Zhuhai 519000, China
| | - Peizhen Ye
- Guangdong
Provincial Engineering Research Center of Molecular Imaging, The Fifth
Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, China
- Guangdong-Hong
Kong-Macao University Joint Laboratory of Interventional Medicine,
The Fifth Affiliated Hospital, Sun Yat-sen
University, Zhuhai 519000, China
| | - Yongshan Liu
- Guangdong
Provincial Engineering Research Center of Molecular Imaging, The Fifth
Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, China
- Guangdong-Hong
Kong-Macao University Joint Laboratory of Interventional Medicine,
The Fifth Affiliated Hospital, Sun Yat-sen
University, Zhuhai 519000, China
| | - Yuyi Hou
- Guangdong
Provincial Engineering Research Center of Molecular Imaging, The Fifth
Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, China
- Guangdong-Hong
Kong-Macao University Joint Laboratory of Interventional Medicine,
The Fifth Affiliated Hospital, Sun Yat-sen
University, Zhuhai 519000, China
| | - Hongjun Jin
- Guangdong
Provincial Engineering Research Center of Molecular Imaging, The Fifth
Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, China
- Guangdong-Hong
Kong-Macao University Joint Laboratory of Interventional Medicine,
The Fifth Affiliated Hospital, Sun Yat-sen
University, Zhuhai 519000, China
| | - Ying Wang
- Department
of Nuclear Medicine, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, China
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Gao Y, Bi L, Li A, Du M, Song M, Jiang G. Associations of Bisphenols Exposure and Hyperuricemia Based on Human Investigation and Animal Experiments. Environ Sci Technol 2024; 58:5290-5298. [PMID: 38468128 DOI: 10.1021/acs.est.4c00792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/13/2024]
Abstract
Hyperuricemia is characterized by elevated blood uric acid (UA) levels, which can lead to certain diseases. Epidemiological studies have explored the association between environmental contaminant exposure and hyperuricemia. However, few studies have investigated the role of chemical exposure in the development of hyperuricemia. Here, we sought to investigate the effects of bisphenol exposure on the occurrence of hyperuricemia. Fifteen bisphenol chemicals (BPs) were detected in human serum and urine samples collected from an area with a high incidence of hyperuricemia in China. Serum UA levels positively correlated with urinary bisphenol S (BPS), urinary bisphenol P (BPP), and serum bisphenol F (BPF). The effects of these three chemicals on UA levels in mice were explored at various exposure concentrations. An increase in serum UA levels was observed in BPS- and BPP-exposed mice. The results showed that BPS exposure increased serum UA levels by damaging the structure of the kidneys, whereas BPP exposure increased serum UA levels by disturbing purine metabolism in the liver. Moreover, BPF did not induce an increase in serum UA levels owing to the inhibition of guanine conversion to UA. In summary, we provide evidence of the mechanisms whereby exposure to three BPs disturbs UA homeostasis. These findings provide new insights into the risks of exposure to bisphenol chemicals.
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Affiliation(s)
- Yue Gao
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Science, Beijing 100085, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lei Bi
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Science, Beijing 100085, China
| | - Aijing Li
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Science, Beijing 100085, China
| | - Mei Du
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Science, Beijing 100085, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Maoyong Song
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Science, Beijing 100085, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Guibin Jiang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Science, Beijing 100085, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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Du M, Liu J, Bi L, Wang F, Ma C, Song M, Jiang G. Effects of oilfield-produced water discharge on the spatial patterns of microbial communities in arid soils. Sci Total Environ 2024; 916:170333. [PMID: 38278269 DOI: 10.1016/j.scitotenv.2024.170333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 01/17/2024] [Accepted: 01/19/2024] [Indexed: 01/28/2024]
Abstract
Recently intensified oil exploitation has resulted in the discharge of large amounts of wastewater containing high concentrations of organic matter and nutrients into the receiving aquatic and soil environments; however, the effects of oilfield-produced water on the soil microbiota are poorly understood. In this study, we conducted a comprehensive analysis to reveal the composition and diversity of the microbial community at horizontal and vertical scales in a typical arid soil receiving oilfield-produced water in Northwest China. Oilfield-produced water caused an increase in microbial diversity at the horizontal scale, and the communities in the topsoil were more variable than those in the subsoil. Additionally, the microbial taxonomic composition differed significantly between the near- and far-producing water soils, with Proteobacteria and Halobacterota dominating the water-affected and reference soil communities, respectively. Soil property analysis revealed that pH, salt, and total organic content influenced the bacterial communities. Furthermore, the oil-produced water promoted the complexity and modularity of distance-associated microbial networks, indicating positive interactions for soil ecosystem function, but not for irrigation or livestock watering. This is the first detailed examination of the microbial communities in soil receiving oilfield-produced water, providing new insights for understanding the microbial spatial distributions in receiving arid soils.
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Affiliation(s)
- Mei Du
- Key Laboratory of Environmental Nanotechnology and Health Effects, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jingzhang Liu
- Key Laboratory of Environmental Nanotechnology and Health Effects, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lei Bi
- Key Laboratory of Environmental Nanotechnology and Health Effects, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Fengbang Wang
- Key Laboratory of Environmental Nanotechnology and Health Effects, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Chunyan Ma
- Key Laboratory of Environmental Nanotechnology and Health Effects, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Maoyong Song
- Key Laboratory of Environmental Nanotechnology and Health Effects, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Science, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Guibin Jiang
- Key Laboratory of Environmental Nanotechnology and Health Effects, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Science, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
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5
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Han H, Li Z, Bi L, Zhang J. Long Non-Coding RNA NUTM2A-AS1/miR-376a-3p/PRMT5 Axis Promotes Prostate Cancer Progression. ARCH ESP UROL 2024; 77:173-182. [PMID: 38583010 DOI: 10.56434/j.arch.esp.urol.20247702.23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/08/2024]
Abstract
BACKGROUND In recent years, significant attention has been directed towards long non-coding RNA NUT family member 2A antisense RNA 1 (NUTM2A-AS1) for its oncogenic role in tumours. This study aimed to investigate the functional and molecular mechanisms underlying NUTM2A-AS1 in prostate cancer (PCa). METHODS NUTM2A-AS1, miR-376a-3p, and protein arginine methyltransferase 5 (PRMT5) levels were assessed in PCa samples and matched non-cancerous prostate samples. The DU145 cell line was conditioned to undergo transfection with relevant plasmids, and a cell counting kit-8 assay was performed to evaluate cell proliferation. A Transwell assay was conducted to analyse cell migration or invasion. Cell apoptosis was assessed using an annexin V-fluorescein isothiocyanate/propidium iodide apoptosis detection kit and flow cytometry. A tumour sphere formation assay was conducted to assess the ability of PCa cells to form tumour spheres. RESULTS We found elevated expression of NUTM2A-AS1 and PRMT5 and decreased expression of miR-376a-3p in PCa samples. Inhibition of NUTM2A-AS1 or overexpression of miR-376a-3p led to reduced cell proliferation and diminished cancer stem cell-like traits in vitro. NUTM2A-AS1 regulated miR-376a-3p through competitive absorption, thereby modulating PRMT5. Up-regulation of PRMT5 nullified the therapeutic effects of inhibiting NUTM2A-AS1 or overexpressing miR-376a-3p in DU145 cells. CONCLUSIONS NUTM2A-AS1 promotes cancer stem cell-like traits in PCa cells by targeting PRMT5 through miR-376a-3p. Therefore, these NUTM2A-AS1-based novel insights into tumour therapy hold promise for patients with PCa.
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Affiliation(s)
- Hongfen Han
- Sensory Control Department, Qingdao West Coast New Area People's Hospital (Qingdao Huangdao District People's Hospital), 266000 Qingdao, Shandong, China
| | - Zheng Li
- Second Department of Cancer, Jinan Central Hospital, 250000 Jinan, Shandong, China
| | - Lei Bi
- Laboratory Department, Zibo Central Hospital, 255000 Zibo, Shandong, China
| | - Jing Zhang
- Urology Department, The Second Affiliated Hospital of Shandong First Medical University, 271000 Tai'an, Shandong, China
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Chen Z, Li Y, Xia H, Wang Y, Pang S, Ma C, Bi L, Wang F, Song M, Jiang G. Chronic exposure to polystyrene microplastics increased the chemosensitivity of normal human liver cells via ABC transporter inhibition. Sci Total Environ 2024; 912:169050. [PMID: 38065500 DOI: 10.1016/j.scitotenv.2023.169050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 11/28/2023] [Accepted: 11/30/2023] [Indexed: 12/18/2023]
Abstract
Microplastics (MPs) are ubiquitous in environmental compartments and consumer products. Although liver is frequently reported to be a target organ of MP accumulation in mammals, few studies have focused on MP hepatoxicity in humans. In this study, we used normal human liver cells, THLE-2, to assess the acute and chronic toxicity of polystyrene (PS) MPs with sizes of 0.1 and 1 μm. The results showed that after 48 h of exposure, both kinds of PS MPs could enter THLE-2 cells and cause no obviously acute cytotoxicity at <20 μg/mL. In contrast, metabolomic analysis revealed that 90 days of PS MPs exposure at environmentally relevant dose (0.2 μg/mL) could significantly alter the metabolic profiles of the cells, especially the nanosized MPs. KEGG pathway analysis showed that the ATP-binding cassette (ABC) transporter pathway was the most significantly changed pathway. Cell functional tests confirmed that chronic PS MP treatment could inhibit the activity of the ABC efflux transporter and further increase the cytotoxicity of arsenic, indicating that the PS MPs had a chemosensitizing effect. These findings underline the chronic risk of MPs to human liver.
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Affiliation(s)
- Zihan Chen
- Key Laboratory of Environmental Nanotechnology and Health Effects, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yue Li
- Key Laboratory of Environmental Nanotechnology and Health Effects, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Honghuan Xia
- Key Laboratory of Environmental Nanotechnology and Health Effects, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yuanyuan Wang
- Key Laboratory of Environmental Nanotechnology and Health Effects, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Shaochen Pang
- Hubei Key Laboratory of Environmental and Health Effects of Persistent Toxic Substances, School of Environment and Health, Jianghan University, Wuhan 430056, China
| | - Chunyan Ma
- Key Laboratory of Environmental Nanotechnology and Health Effects, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lei Bi
- Key Laboratory of Environmental Nanotechnology and Health Effects, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Fengbang Wang
- Key Laboratory of Environmental Nanotechnology and Health Effects, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Maoyong Song
- Key Laboratory of Environmental Nanotechnology and Health Effects, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Guibin Jiang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
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Xu D, Lu X, Yang F, Jiang Z, Yang S, Bi L, Liu J, Shan H, Li D. STING-targeted PET tracer for early assessment of tumor immunogenicity in colorectal cancer after chemotherapy. Eur J Nucl Med Mol Imaging 2024; 51:641-655. [PMID: 37924341 DOI: 10.1007/s00259-023-06485-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 10/21/2023] [Indexed: 11/06/2023]
Abstract
PURPOSE To optimize chemotherapy regimens and improve the effectiveness of chemotherapy combined with immunotherapy, a PET tracer specifically targeting the stimulator of interferon genes (STING), denoted as [18F]FBTA was used to monitor the early changes in tumor immunogenicity after chemotherapy in colorectal cancer (CRC) mice. METHODS The toluene sulfonate precursor was labeled with 18F to produce the STING targeted probe-[18F]FBTA. [18F]FBTA-PET imaging and biodistribution were performed using CRC mice treated with oxaliplatin (OXA) or cisplatin (CDDP). CRC mice were also treated with low (CDDP-LD: 1 mg/kg) or medium (CDDP-MD: 2.5 mg/kg) doses of CDDP, and subjected to PET imaging and biodistribution. The effects of different chemotherapeutic agents and different doses of CDDP on tumor innate immunity were verified by flow cytometry and immunohistochemistry. RESULTS PET imaging of CRC mice exhibited notably enhanced tumor uptake in the early phase of chemotherapy with treatment with OXA (3.09 ± 0.25%ID/g) and CDDP (4.01 ± 0.18%ID/g), especially in the CDDP group. The PET-derived tumor uptake values have strong correlations with STING immunohistochemical score. Flow cytometry showed both agents led to DCs and macrophages infiltration in tumors. Compared with OXA, CDDP treatment recruits more DCs and macrophages in CRC tumors. Both CDDP-LD and CDDP-MD treatment elevated uptake in CRC tumors, especially in CDDP-MD group. Immunohistochemistry and flow cytometry confirmed CDDP-MD treatment recruits more DCs and macrophages than CDDP-LD treatment. CONCLUSION Overall, the STING-targeted tracer-[18F]FBTA was demonstrated to monitor early changes in tumor immunogenicity in CRC mice after chemotherapy. Besides, the STING-targeted strategy may help to select the appropriate chemotherapy regimen, including chemotherapeutic agents and doses, which further improve clinical decision making for combination immunotherapy after chemotherapy for CRC.
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Affiliation(s)
- Duo Xu
- Department of Interventional Medicine, the Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, 519000, China
- Department of Nuclear Medicine, the Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, 519000, China
- Guangdong Provincial Engineering Research Center of Molecular Imaging, the Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, 519000, China
- Guangdong-Hong Kong-Macao University Joint Laboratory of Interventional Medicine, the Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, 519000, China
| | - Xin Lu
- Department of Interventional Medicine, the Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, 519000, China
- Department of Nuclear Medicine, the Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, 519000, China
- Guangdong Provincial Engineering Research Center of Molecular Imaging, the Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, 519000, China
| | - Fan Yang
- Department of Nuclear Medicine, the Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, 519000, China
- Guangdong Provincial Engineering Research Center of Molecular Imaging, the Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, 519000, China
- Department of Pediatrics, the Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, 519000, Guangdong Province, China
| | - Zebo Jiang
- Department of Nuclear Medicine, the Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, 519000, China
- Guangdong Provincial Engineering Research Center of Molecular Imaging, the Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, 519000, China
| | - Shirui Yang
- Department of Nuclear Medicine, the Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, 519000, China
- Guangdong Provincial Engineering Research Center of Molecular Imaging, the Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, 519000, China
| | - Lei Bi
- Guangdong Provincial Engineering Research Center of Molecular Imaging, the Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, 519000, China
| | - Jiani Liu
- Cancer Center, the Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, China
| | - Hong Shan
- Department of Interventional Medicine, the Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, 519000, China.
- Guangdong Provincial Engineering Research Center of Molecular Imaging, the Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, 519000, China.
- Guangdong-Hong Kong-Macao University Joint Laboratory of Interventional Medicine, the Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, 519000, China.
| | - Dan Li
- Department of Nuclear Medicine, the Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, 519000, China.
- Guangdong Provincial Engineering Research Center of Molecular Imaging, the Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, 519000, China.
- Guangdong-Hong Kong-Macao University Joint Laboratory of Interventional Medicine, the Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, 519000, China.
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8
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Liu C, Hu Y, Chen Y, Fang J, Liu R, Bi L, Tan X, Sheng B, Wu Q. Improvements to a GLCM-based machine-learning approach for quantifying posterior capsule opacification. J Appl Clin Med Phys 2024; 25:e14268. [PMID: 38259111 PMCID: PMC10860560 DOI: 10.1002/acm2.14268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 12/26/2023] [Accepted: 01/02/2024] [Indexed: 01/24/2024] Open
Abstract
BACKGROUND Posterior capsular opacification (PCO) is a common complication following cataract surgery that leads to visual disturbances and decreased quality of vision. The aim of our study was to employ a machine-learning methodology to characterize and validate enhancements applied to the grey-level co-occurrence matrix (GLCM) while assessing its validity in comparison to clinical evaluations for evaluating PCO. METHODS One hundred patients diagnosed with age-related cataracts who were scheduled for phacoemulsification surgery were included in the study. Following mydriasis, anterior segment photographs were captured using a high-resolution photographic system. The GLCM was utilized as the feature extractor, and a supported vector machine as the regressor. Three variations, namely, GLCM, GLCM+C (+axial information), and GLCM+V (+regional voting), were analyzed. The reference value for regression was determined by averaging clinical scores obtained through subjective analysis. The relationships between the predicted PCO outcome scores and the ground truth were assessed using Pearson correlation analysis and a Bland-Altman plot, while agreement between them was assessed through the Bland-Altman plot. RESULTS Relative to the ground truth, the GLCM, GLCM+C, and GLCM+V methods exhibited correlation coefficients of 0.706, 0.768, and 0.829, respectively. The relationship between the PCO score predicted by the GLCM+V method and the ground truth was statistically significant (p < 0.001). Furthermore, the GLCM+V method demonstrated competitive performance comparable to that of two experienced clinicians (r = 0.825, 0.843) and superior to that of two junior clinicians (r = 0.786, 0.756). Notably, a high level of agreement was observed between predictions and the ground truth, without significant evidence of proportional bias (p > 0.05). CONCLUSIONS Overall, our findings suggest that a machine-learning approach incorporating the GLCM, specifically the GLCM+V method, holds promise as an objective and reliable tool for assessing PCO progression. Further studies in larger patient cohorts are warranted to validate these findings and explore their potential clinical applications.
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Affiliation(s)
- Chang Liu
- Department of Ophthalmology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ying Hu
- Department of Ophthalmology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yan Chen
- Department of Ophthalmology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jian Fang
- Department of Ophthalmology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ruhan Liu
- Furong Laboratory, Central South University, Changsha, Hunan, China
| | - Lei Bi
- Institute of Translational Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Xunan Tan
- Shanghai University of Sport School of Exercise and Health, Shanghai, China
| | - Bin Sheng
- Department of Computer Science and Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Qiang Wu
- Department of Ophthalmology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Li Z, Teng L, Pan Z, Yang Y, Zhu J, Wu X, Qian Y, Qian H, Bian Y, Chen Y, Chen W, Bi L. Identification of Comprehensive Biomarkers in Patients With Mismatch Repair-Deficient Colon Adenocarcinoma Based on Parallel Multiomics. J Transl Med 2024; 104:100306. [PMID: 38104864 DOI: 10.1016/j.labinv.2023.100306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 11/14/2023] [Accepted: 12/11/2023] [Indexed: 12/19/2023] Open
Abstract
Immunocheckpoint inhibitors have shown impressive efficacy in patients with colon cancer and other types of solid tumor that are mismatch repair-deficient (dMMR). Currently, PCR-capillary electrophoresis is one of the mainstream detection methods for dMMR, but its accuracy is still limited by germline mismatch repair (MMR) mutations, the functional redundancy of the MMR system, and abnormal methylation of MutL Homolog 1 promoter. Therefore, this study aimed to develop new biomarkers for dMMR based on artificial intelligence (AI) and pathologic images, which may help to improve the detection accuracy. To screen for the differential expression genes (DEGs) in dMMR patients and validate their diagnostic and prognostic efficiency, we used the expression profile data from the Cancer Genome Atlas (TCGA). The results showed that the expression of Immunoglobulin Lambda Joining 3 in dMMR patients was significantly downregulated and negatively correlated with the prognosis. Meanwhile, our diagnostic models based on pathologic image features showed good performance with area under the curves (AUCs) of 0.73, 0.86, and 0.81 in the training, test, and external validation sets (Jiangsu Traditional Chinese Medicine Hospital cohort). Based on gene expression and pathologic characteristics, we developed an effective prognosis model for dMMR patients through multiple Cox regression analysis (with AUC values of 0.88, 0.89, and 0.88 at 1-, 3-, and 5-year intervals, respectively). In conclusion, our results showed that Immunoglobulin Lambda Joining 3 and nucleus shape-related parameters (such as nuclear texture, nuclear eccentricity, nuclear size, and nuclear pixel intensity) were independent diagnostic and prognostic factors, suggesting that they could be used as new biomarkers for dMMR patients.
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Affiliation(s)
- Zhengjun Li
- College of Health Economics Management, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China; Jiangsu Provincial Engineering Research Center of TCM External Medication Development and Application, Nanjing, China
| | - Linxin Teng
- Jiangsu Provincial Engineering Research Center of TCM External Medication Development and Application, Nanjing, China; School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Zhiwei Pan
- School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Yang Yang
- School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Junlin Zhu
- School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Xiaobin Wu
- Affiliated Hospital, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Yunzhi Qian
- MPH Department of Nutrition, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Haihua Qian
- Affiliated Hospital, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Yaoyao Bian
- Jiangsu Provincial Engineering Research Center of TCM External Medication Development and Application, Nanjing, China
| | - Ying Chen
- College of Health Economics Management, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Weiping Chen
- School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China.
| | - Lei Bi
- Jiangsu Provincial Engineering Research Center of TCM External Medication Development and Application, Nanjing, China; School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China.
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10
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Bi L, Zhou Y, Zhang Y, Zhang X. MiR-27a-3p exacerbates cell migration and invasion in right-sided/left-sided colorectal cancer by targeting TGFBR2/TCF7L2. Cell Mol Biol (Noisy-le-grand) 2024; 70:148-154. [PMID: 38372101 DOI: 10.14715/cmb/2024.70.1.20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Indexed: 02/20/2024]
Abstract
Left-sided colorectal cancer (LSCC) and right-sided colorectal cancer (RSCC) belong to colorectal cancer happening at different positions, which exhibit different pathogenesis. MicroRNA (miRNA)s are widely known regulators in diverse carcinomas. This research aims to identify a differentially expressed miRNA that simultaneously regulates genes associated with LSCC and RSCC and reveal their regulatory relation in cell migration and invasion. Bioinformatics analyses were conducted to uncover the dysregulated functional genes in LSCC/RSCC and obtain their common targeted miRNAs. The expression pattern of miR-27a-3p, TCF7L2, and TGFBR2 in cancerous and adjacent tissues from LSCC/RSCC patients was assessed through qRT-PCR, followed by Pearson's correlation coefficients analysis. The interaction of miR-27a-3p with TCF7L2 or TGFBR2 was thereafter confirmed through luciferase reporter assay. TCF7L2 and TGFBR2 protein levels were assessed by western blotting after overexpressing level of miR-27a-3p. Cell migration and invasion were routinely examined by wound healing and transwell experiments, respectively. TCF7L2 and TGFBR2 were respectively identified and verified to be lowly expressed in LSCC and RSCC, both of them were predicted and confirmed as targets of miR-27a-3p. MiR-27a-3p elevation exacerbated migration and invasion of both LSCC and RSCC cells. The impacts of miR-27a-3p on migration and invasion could be blocked by overexpressing TCF7L2 in LSCC cells and also reversed by up-regulating TGFBR2 in RSCC cells. In general, miR-27a-3p accelerated the migration and invasion capabilities of LSCC and RSCC cells through negatively regulating TCF7L2 and TGFBR2, respectively, which might be an effective molecular target for the treatment of LSCC/RSCC.
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Affiliation(s)
- Lei Bi
- Department of Clinical Laboratory, Zibo Central Hospital, Zibo, China.
| | - Yuntao Zhou
- Department of Clinical Laboratory, Zibo Central Hospital, Zibo, China.
| | - Yong Zhang
- Department of Clinical Laboratory, Zibo Central Hospital, Zibo, China.
| | - Xin Zhang
- Department of Clinical Laboratory, Zibo Central Hospital, Zibo, China.
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Li X, Bi L, Han L. Associations of five blood heavy metals with hepatitis B virus infection and immunity in adults: a cross-sectional study. BMC Public Health 2024; 24:266. [PMID: 38262984 PMCID: PMC10804536 DOI: 10.1186/s12889-024-17799-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Accepted: 01/17/2024] [Indexed: 01/25/2024] Open
Abstract
BACKGROUND Heavy metal pollution has emerged as a significant concern for human health, prompting increased awareness of its potential adverse effects. While previous research has established a connection between heavy metals and liver function biomarkers, the specific relationship between heavy metals and HBV infection remains unexplored. This cross-sectional study aims to investigate the potential correlations between five blood heavy metals - lead, cadmium, mercury, manganese, and selenium - and the presence of HBsAg, HBsAb, and HBcAb in adults. METHODS The study utilized data from NHANES 2007-2018. Participants were classified into four groups based on their infectious status, and the association between heavy metals and HBV infection was analyzed using multiple logistic regression and stratification analysis. RESULTS A total of 8431 participants were included, with 5 436 classified as Susceptible, 1 765 as Vaccinated, 865 as Natural Infection, and 103 as Acute/Chronic HBV Infection. The Vaccinated group exhibited a lower mean age (34.52 ± 14.16 years) compared to the other groups. Statistically significant differences in heavy metal concentrations (except selenium) were observed among the groups (P < 0.001). After adjusting for covariates, lead was significantly associated with HBV infection (Q2: OR 2.37, 95%CI 1.04-5.39; Q3: OR 2.34, 95%CI 1.01-5.40), and positive trends were observed for high blood concentrations of mercury (Q4: OR 3.03, 95%CI 1.31-7.04) and manganese (Q4: OR 2.52, 95%CI 1.20-5.28). Furtherly, the presence of lead reduced the protection of HBsAb (Q2: OR 0.84, 95%CI 0.73-0.97; Q3: OR 0.77, 95%CI 0.66-0.90; Q4: OR 0.83, 95%CI 0.70-0.98). Subgroup analysis indicated that cadmium was associated with an increased risk of HBV infection in Asians (OR 1.36, 95%CI 1.03-1.78) and individuals with a BMI range of 25 to 30 (OR 1.60, 95%CI 1.17-2.18). CONCLUSIONS The study's findings suggest a correlation between elevated blood Pb concentrations and reduced immunization rates against hepatitis B. Individuals with a positive HBsAg exhibit lower blood Se concentrations and higher blood Hg and Mn concentrations.
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Affiliation(s)
- Xinpeng Li
- Department of Clinical Laboratory, Public Health Clinical Center of Chengdu, Chengdu, 610000, China
| | - Lei Bi
- Department of Clinical Laboratory, Public Health Clinical Center of Chengdu, Chengdu, 610000, China
| | - Lu Han
- Department of Clinical Laboratory, Public Health Clinical Center of Chengdu, Chengdu, 610000, China.
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12
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Li Q, Lu Y, Shang J, Song Q, Jiao J, Bi L, Jiang T, Liu X. Ganshuang granule plays a pharmacological role in anti-alcoholic and anti-hangover via regulating alcohol metabolism and affecting neurotransmitters. Int J Neurosci 2024:1-13. [PMID: 38197183 DOI: 10.1080/00207454.2023.2300734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 12/26/2023] [Indexed: 01/11/2024]
Abstract
BACKGROUND To explore the effect of Ganshuang granule on anti-alcoholic and anti-hangover and its potential mechanism. METHODS SPF SD rats' drunken model and SPF Kunming mice's hangover model were used as models. RESULTS Ganshuang granule could significantly reduce sleep time, the time to climb in mice, and significantly prolong the tolerance time and shorten sleep time in rats (p < 0.05). The blood ethanol concentration of rats in each administration group was lower than that in the model group at each time point (p < 0.05). Compared with the control group, the activities of ADH and ALDH in the liver of the model group were significantly decreased (p < 0.05); the content of DA and 5-HT in the striatum of the model group was significantly increased (p < 0.05); and the activity of AchE in the hippocampus was significantly decreased (p < 0.05). The above processes could be improved and regulated in the drug administration group. Compared with the control group, there was no significant difference between ADH and ALDH in the serum of the model group (p > 0.05). However, the activities of ADH and ALDH in the liver of drunk rats could be upregulated by Ganshuang granule (p < 0.05). CONCLUSION Ganshuang granule has the pharmacological effects of anti-alcoholic and anti-hangover, which is related to regulating the activities of ADH and ALDH in the liver, the contents of DA and 5-HT in striatum, and the activity of AchE in the hippocampus.
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Affiliation(s)
- Qiannan Li
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Yinghui Lu
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Jinfeng Shang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Qi Song
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Jiakang Jiao
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Lei Bi
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Tingyue Jiang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Xin Liu
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
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Bi L, Buehner U, Fu X, Williamson T, Choong P, Kim J. Hybrid CNN-transformer network for interactive learning of challenging musculoskeletal images. Comput Methods Programs Biomed 2024; 243:107875. [PMID: 37871450 DOI: 10.1016/j.cmpb.2023.107875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Revised: 10/16/2023] [Accepted: 10/17/2023] [Indexed: 10/25/2023]
Abstract
BACKGROUND AND OBJECTIVES Segmentation of regions of interest (ROIs) such as tumors and bones plays an essential role in the analysis of musculoskeletal (MSK) images. Segmentation results can help with orthopaedic surgeons in surgical outcomes assessment and patient's gait cycle simulation. Deep learning-based automatic segmentation methods, particularly those using fully convolutional networks (FCNs), are considered as the state-of-the-art. However, in scenarios where the training data is insufficient to account for all the variations in ROIs, these methods struggle to segment the challenging ROIs that with less common image characteristics. Such characteristics might include low contrast to the background, inhomogeneous textures, and fuzzy boundaries. METHODS we propose a hybrid convolutional neural network - transformer network (HCTN) for semi-automatic segmentation to overcome the limitations of segmenting challenging MSK images. Specifically, we propose to fuse user-inputs (manual, e.g., mouse clicks) with high-level semantic image features derived from the neural network (automatic) where the user-inputs are used in an interactive training for uncommon image characteristics. In addition, we propose to leverage the transformer network (TN) - a deep learning model designed for handling sequence data, in together with features derived from FCNs for segmentation; this addresses the limitation of FCNs that can only operate on small kernels, which tends to dismiss global context and only focus on local patterns. RESULTS We purposely selected three MSK imaging datasets covering a variety of structures to evaluate the generalizability of the proposed method. Our semi-automatic HCTN method achieved a dice coefficient score (DSC) of 88.46 ± 9.41 for segmenting the soft-tissue sarcoma tumors from magnetic resonance (MR) images, 73.32 ± 11.97 for segmenting the osteosarcoma tumors from MR images and 93.93 ± 1.84 for segmenting the clavicle bones from chest radiographs. When compared to the current state-of-the-art automatic segmentation method, our HCTN method is 11.7%, 19.11% and 7.36% higher in DSC on the three datasets, respectively. CONCLUSION Our experimental results demonstrate that HCTN achieved more generalizable results than the current methods, especially with challenging MSK studies.
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Affiliation(s)
- Lei Bi
- Institute of Translational Medicine, National Center for Translational Medicine, Shanghai Jiao Tong University, Shanghai, China; School of Computer Science, University of Sydney, NSW, Australia
| | | | - Xiaohang Fu
- School of Computer Science, University of Sydney, NSW, Australia
| | - Tom Williamson
- Stryker Corporation, Kalamazoo, Michigan, USA; Centre for Additive Manufacturing, School of Engineering, RMIT University, VIC, Australia
| | - Peter Choong
- Department of Surgery, University of Melbourne, VIC, Australia
| | - Jinman Kim
- School of Computer Science, University of Sydney, NSW, Australia.
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Geng Y, Meng C, Gao T, Li S, Bi L, Wang Y, Zhang P. Efficacy and Safety of Direct Oral Anticoagulants in Pediatric Venous Thromboembolism: A Systematic Review and Meta-Analysis. Indian J Pediatr 2023:10.1007/s12098-023-04952-8. [PMID: 38117441 DOI: 10.1007/s12098-023-04952-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Accepted: 10/05/2023] [Indexed: 12/21/2023]
Abstract
OBJECTIVES To assess the efficacy and safety of direct oral anticoagulants (DOACs) in comparison to standard-of-care (SOC) anticoagulants in the management and prophylaxis of thromboembolic events in pediatric populations. METHODS A comprehensive search of electronic databases was conducted to identify relevant studies published between January 1, 2015, and December 18, 2022. A meta-analysis was undertaken to evaluate the effect of DOACs on clinically significant endpoints, employing trial-level data with harmonized endpoint definitions. The primary outcome was venous thromboembolism (VTE). Odds ratios (ORs) with 95% confidence intervals (CIs) were calculated. The study was registered with INPLASY (2022120065). RESULTS Three studies encompassing 934 subjects were included. The incidence of VTE was reduced in patients administered DOACs compared to those on SOC anticoagulants (OR 0.41 [95% CI 0.19-0.93], I² = 0%, P = 0.03). No significant differences were observed between the DOAC and SOC groups in all-cause mortality (OR 0.50 [95% CI 0.07-3.59], I² = 0%, P = 0.35) or serious adverse events (OR 0.75 [95% CI 0.50-1.12], I² = 0%, P = 0.16). The risk of major bleeding (OR 0.50 [95% CI 0.13-1.87], I² = 44%, P = 0.30) and clinically relevant non-major bleeding (OR 1.23 [95% CI 0.50-3.00], I² = 0%, P = 0.65) exhibited no significant differences between the groups. CONCLUSIONS DOACs are associated with a reduced risk of VTE in pediatric patients without increasing the risk of bleeding, all-cause mortality, or serious adverse events when compared to SOC anticoagulants. DOACs may be an alternative for the treatment and prevention of thromboembolic events in the pediatrics.
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Affiliation(s)
- Yu Geng
- Department of Cardiology, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, NO. 168 Litang Road, Changping District, Beijing, 102218, P. R. China
| | - Chang Meng
- Department of Emergency, Emergency General Hospital, Beijing, China
| | - Tong Gao
- Department of Cardiology, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, NO. 168 Litang Road, Changping District, Beijing, 102218, P. R. China
| | - Siyuan Li
- Department of Cardiology, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, NO. 168 Litang Road, Changping District, Beijing, 102218, P. R. China
| | - Lei Bi
- Department of Cardiology, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, NO. 168 Litang Road, Changping District, Beijing, 102218, P. R. China
| | - Yintang Wang
- Department of Cardiology, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, NO. 168 Litang Road, Changping District, Beijing, 102218, P. R. China.
| | - Ping Zhang
- Department of Cardiology, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, NO. 168 Litang Road, Changping District, Beijing, 102218, P. R. China.
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15
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Li M, Bi L, Lin W. Distinct linear polarization of core-shell particles at near-backscattering directions. Opt Express 2023; 31:44648-44671. [PMID: 38178530 DOI: 10.1364/oe.509240] [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: 10/13/2023] [Accepted: 11/29/2023] [Indexed: 01/06/2024]
Abstract
The degree of linear polarization (-P12/P11) of scattered light by particles with a core-shell structure may display a distinct negative minimum at near-backscattering directions. However, the specific range of microphysical parameters within which this phenomenon occurs and the underlying physical mechanism are still unclear. Therefore, this study systematically investigated the impacts of particle size, shell-core ratio and refractive index on the negative minimum of -P12/P11 at near-backscattering angles for both coated spheres and coated super-spheroids. The findings reveal that the pronounced negative minimum at near-backscattering angles mostly appeared when the size parameter defined in terms of the mean radius was smaller than approximately 14.5 (e.g., the mean radius is smaller than approximately 2 μm at 0.865 µm wavelength) and the shell-core ratio was in a range of 1.4-1.9. The presence of weakly- and moderately-absorptive shells would lead to pronounced negative polarization at near backscattering directions. However, as the core absorption increased, the amplitude of negative minimum decreased and then stabilized. As for coated super-spheroids, the non-sphericity of the shell tended to suppress the negative polarization at near-backscattering directions. As a result, the pronounced negative minimum (<-0.4) mostly appeared when the aspect ratio and roundness of the shell were close to unity (the overall shape of the particle was nearly-spherical). However, the negative minimum of -P12/P11 showed little dependence on the shape of the core. Furthermore, the Debye series approach was employed to investigate the underlying mechanism of the negative minimum of -P12/P11 for coated spheres. The results demonstrated that the interference among the partial waves underwent one internal reflection on the shell-medium interface and, without internal reflection on the core-shell interface, led to the pronounced negative polarization at near-backscattering angles. When the core absorption was significant, the interference became negligible and the amplitude of the negative minimum was suppressed. This study enhances our understanding the scattering characteristic of coated particles and has implications in aerosol classification and polarized remote sensing.
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Bi L, Ai C, Zhang H, Chen Z, Deng Y, Xiong J, Lv Z. Prognostic characteristics of T-cell mediated cell killing-related genes in lung adenocarcinoma. Autoimmunity 2023; 56:2250097. [PMID: 37624966 DOI: 10.1080/08916934.2023.2250097] [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: 03/07/2023] [Revised: 06/19/2023] [Accepted: 08/15/2023] [Indexed: 08/27/2023]
Abstract
Constituted by various heterogeneous cells, the tumor microenvironment (TME) is capable of promoting tumor proliferation, invasion, and metastasis through extensive crosstalk. The pivotal factor influencing the survival time of patients and their response to immunotherapy lies in the intratumoral immune environment. We obtained 112 differential genes related to T cell-mediated tumor killing in LUAD by employing bioinformatics analysis on the basis of the TCGA and TISIDB databases. Then the 6-gene prognostic risk score model (CA9, OIP5, TIMP1, SEC11C, FURIN, and TLR10) was constructed by conducting univariate LASSO as well as multivariate Cox regression analyses. The median risk score was taken as the threshold to classify the samples into two groups. Survival analysis revealed that the low-risk group exhibited a more favorable prognosis. Subsequently, the Cox regression analysis combined with clinical information (age, gender, and pathological stage) and the risk score of LUAD patients demonstrated the potential of this model as an independent prognostic factor. The nomogram established based on clinical information and a risk score in combination with the calibration curve indicated that this model had good predictive ability. Notable enrichment of the differential genes from the high- and low-risk groups was discovered in immune-associated processes or pathways, as shown by the GO and KEGG enrichment analyses. The combined use of single-sample gene enrichment analysis (ssGSEA) and immunophenoscore (IPS) demonstrated heightened immune infiltration and IPS scores in the low-risk group, indicating that immunotherapy was likely to show good efficacy in patients from this group. To sum up, the prognostic model of LUAD constructed based on T-cell-mediated cell killing-related genes was not only capable of screening the prognosis of LUAD patients but was also used for screening those LUAD patients with high sensitivity to immunotherapy. Our study offered novel insights into the clinical treatment and prognostic prediction of LUAD patients.
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Affiliation(s)
- Lei Bi
- Department of Cardiothoracic Surgery, Bishan Hospital of Chongqing Medical University, Chongqing, China
| | - Cheng Ai
- Department of Cardiothoracic Surgery, Bishan Hospital of Chongqing Medical University, Chongqing, China
| | - Hong Zhang
- Department of Cardiothoracic Surgery, Bishan Hospital of Chongqing Medical University, Chongqing, China
| | - Zhengyu Chen
- Department of Cardiothoracic Surgery, Bishan Hospital of Chongqing Medical University, Chongqing, China
| | - Yiping Deng
- Department of Cardiothoracic Surgery, Bishan Hospital of Chongqing Medical University, Chongqing, China
| | - Jing Xiong
- Department of Cardiothoracic Surgery, Bishan Hospital of Chongqing Medical University, Chongqing, China
| | - Zhongzhu Lv
- Department of Cardiothoracic Surgery, Bishan Hospital of Chongqing Medical University, Chongqing, China
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Du M, Liu J, Huang B, Wang Q, Wang F, Bi L, Ma C, Song M, Jiang G. Spatial nanopores promote laccase degradation of bisphenol A and its analogs. Sci Total Environ 2023; 901:166429. [PMID: 37619739 DOI: 10.1016/j.scitotenv.2023.166429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 08/14/2023] [Accepted: 08/17/2023] [Indexed: 08/26/2023]
Abstract
Bisphenol A (BPA) and its analogs are endocrine-disrupting chemicals that are frequently detected in environmental and human samples. However, the effective removal of BPA and its analogs has not yet been extensively studied. Herein, we introduce a novel enzyme reactor for the degradation of BPA and its analogs in water. The influence of pore size on the degradation efficiency of immobilized laccase in the spatial nanopores of hydrogel was investigated using BPA as a representative compound. This showed that nanopores enhance the activity of immobilized laccases in a pore size-dependent manner and increase their stability. Compared with the same amount of free laccase, the 50 mg/L BPA degradation performance of laccase immobilized in 76 nm nanopores increased to 300 %. Taking advantage of magnetic separation, this immobilized laccase can be reused, and its degradation capacity was maintained at over 73.7 % after ten reactions. Moreover, the degradation of seven BPA analogs was 1.03-5.88 times higher using laccase immobilized in nanopores compared with free laccase. Also, the biocatalyst could efficiently degrade BPA analogs in real water matrix. This study opens up a new avenue for the removal of BPA and its analogs by immobilizing laccase in nanopores, overcoming the key limitations introduced by the short enzyme life span and non-reusability.
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Affiliation(s)
- Mei Du
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Science, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jingzhang Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Science, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Bang Huang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Science, Beijing 100085, China; Hubei Key Laboratory of Environmental and Health Effects of Persistent Toxic Substances, Institute of Environment and Health, Jianghan University, 430056 Wuhan, China
| | - Qiong Wang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Science, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Fengbang Wang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Science, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lei Bi
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Science, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Chunyan Ma
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Science, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Maoyong Song
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Science, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Guibin Jiang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Science, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
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Gu B, Meng M, Xu M, Feng DD, Bi L, Kim J, Song S. Multi-task deep learning-based radiomic nomogram for prognostic prediction in locoregionally advanced nasopharyngeal carcinoma. Eur J Nucl Med Mol Imaging 2023; 50:3996-4009. [PMID: 37596343 PMCID: PMC10611876 DOI: 10.1007/s00259-023-06399-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 08/11/2023] [Indexed: 08/20/2023]
Abstract
PURPOSE Prognostic prediction is crucial to guide individual treatment for locoregionally advanced nasopharyngeal carcinoma (LA-NPC) patients. Recently, multi-task deep learning was explored for joint prognostic prediction and tumor segmentation in various cancers, resulting in promising performance. This study aims to evaluate the clinical value of multi-task deep learning for prognostic prediction in LA-NPC patients. METHODS A total of 886 LA-NPC patients acquired from two medical centers were enrolled including clinical data, [18F]FDG PET/CT images, and follow-up of progression-free survival (PFS). We adopted a deep multi-task survival model (DeepMTS) to jointly perform prognostic prediction (DeepMTS-Score) and tumor segmentation from FDG-PET/CT images. The DeepMTS-derived segmentation masks were leveraged to extract handcrafted radiomics features, which were also used for prognostic prediction (AutoRadio-Score). Finally, we developed a multi-task deep learning-based radiomic (MTDLR) nomogram by integrating DeepMTS-Score, AutoRadio-Score, and clinical data. Harrell's concordance indices (C-index) and time-independent receiver operating characteristic (ROC) analysis were used to evaluate the discriminative ability of the proposed MTDLR nomogram. For patient stratification, the PFS rates of high- and low-risk patients were calculated using Kaplan-Meier method and compared with the observed PFS probability. RESULTS Our MTDLR nomogram achieved C-index of 0.818 (95% confidence interval (CI): 0.785-0.851), 0.752 (95% CI: 0.638-0.865), and 0.717 (95% CI: 0.641-0.793) and area under curve (AUC) of 0.859 (95% CI: 0.822-0.895), 0.769 (95% CI: 0.642-0.896), and 0.730 (95% CI: 0.634-0.826) in the training, internal validation, and external validation cohorts, which showed a statistically significant improvement over conventional radiomic nomograms. Our nomogram also divided patients into significantly different high- and low-risk groups. CONCLUSION Our study demonstrated that MTDLR nomogram can perform reliable and accurate prognostic prediction in LA-NPC patients, and also enabled better patient stratification, which could facilitate personalized treatment planning.
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Affiliation(s)
- Bingxin Gu
- Department of Nuclear Medicine, Fudan University Shanghai Cancer Center, Shanghai, People's Republic of China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, People's Republic of China
- Center for Biomedical Imaging, Fudan University, Shanghai, People's Republic of China
- Shanghai Engineering Research Center of Molecular Imaging Probes, Shanghai, People's Republic of China
- Key Laboratory of Nuclear Physics and Ion-Beam Application (MOE), Fudan University, Shanghai, People's Republic of China
| | - Mingyuan Meng
- School of Computer Science, the University of Sydney, Sydney, Australia
| | - Mingzhen Xu
- Department of Nuclear Medicine, Fudan University Shanghai Cancer Center, Shanghai, People's Republic of China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, People's Republic of China
- Center for Biomedical Imaging, Fudan University, Shanghai, People's Republic of China
- Shanghai Engineering Research Center of Molecular Imaging Probes, Shanghai, People's Republic of China
- Key Laboratory of Nuclear Physics and Ion-Beam Application (MOE), Fudan University, Shanghai, People's Republic of China
| | - David Dagan Feng
- School of Computer Science, the University of Sydney, Sydney, Australia
| | - Lei Bi
- Institute of Translational Medicine, National Center for Translational Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Jinman Kim
- School of Computer Science, the University of Sydney, Sydney, Australia
| | - Shaoli Song
- Department of Nuclear Medicine, Fudan University Shanghai Cancer Center, Shanghai, People's Republic of China.
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, People's Republic of China.
- Center for Biomedical Imaging, Fudan University, Shanghai, People's Republic of China.
- Shanghai Engineering Research Center of Molecular Imaging Probes, Shanghai, People's Republic of China.
- Key Laboratory of Nuclear Physics and Ion-Beam Application (MOE), Fudan University, Shanghai, People's Republic of China.
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Tang B, Bi L, Xu Y, Cao L, Li X. N 6-Methyladenosine (m 6A) Reader IGF2BP1 Accelerates Gastric Cancer Development and Immune Escape by Targeting PD-L1. Mol Biotechnol 2023:10.1007/s12033-023-00896-8. [PMID: 37817028 DOI: 10.1007/s12033-023-00896-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 09/11/2023] [Indexed: 10/12/2023]
Abstract
N6-methyladenosine (m6A) functions as an important regulator in various human cancers, including gastric cancer. The immunotherapy targeting PD-1/PD-L1 has brought hope for advanced gastric cancer therapeutic. Here, present research aims to investigate the roles of m6A reader IGF2BP1 on gastric cancer tumor development and immune escape. Results indicated that IGF2BP1 up-regulated in the gastric cancer tissue and correlated with poor prognosis of gastric cancer patients. IGF2BP1 overexpression augmented the proliferation of co-cultured gastric cancer cells, and mitigated the CD8+ T cells mediated anti-tumor response, including IFN-γ secretion, surface PD-L1 level, and cytotoxicity of CD8+ T cells. Meanwhile, IGF2BP1 silencing exerted the opposite effects. In silico analysis revealed that there was a remarkable m6A modified site on PD-L1 mRNA. Moreover, the IGF2BP1 overexpression enhanced the stability of PD-L1 mRNA, thereby deteriorating the immune escape of gastric cancer cells. Collectively, these results describe a novel regulatory mechanism of IGF2BP1 by regulating PD-L1 through m6A epigenetic modification, which might provide insights for gastric cancer immunotherapies.
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Affiliation(s)
- Bingxi Tang
- Department of Gastroenterology, Zibo Central Hospital, Zibo, 255036, China
| | - Lei Bi
- Department of Clinical Laboratory, Zibo Central Hospital, Zibo, 255036, China
| | - Yanbin Xu
- Department of General Surgery, Zibo Central Hospital, Zibo, 255036, China
| | - Lili Cao
- Department of Oncology, Zibo Central Hospital, Zibo, 255036, China.
| | - Xinli Li
- Department of Clinical Laboratory, Zibo Central Hospital, Zibo, 255036, China.
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Cheng TH, Yang W, Liu Z, Feng HY, Qin J, Ma Y, Li S, Bi L, Luo F. Enhanced Faraday rotation by a Fano resonance in substrate-free three-dimensional magnetoplasmonic structures. Nanoscale 2023; 15:15583-15589. [PMID: 37697961 DOI: 10.1039/d3nr02737f] [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] [Indexed: 09/13/2023]
Abstract
Three-dimensional magnetoplasmonic nanostructures possess more novel and richer optical and magneto-optical (MO) behaviors compared with planar nanostructures, and exhibit attractive potential applications in micro-nano non-reciprocal photonic devices. However, fabrication of three-dimensional magnetoplasmonic nanostructures is difficult using the usual nanofabrication methods. This work constructs three-dimensional substrate-free Au/Co/Au structures prepared using focused ion beam (FIB) technology. In the three-dimensional split-ring structure, with y-polarized light normal incidence, a three-dimensional coupling current is formed between the vertical split-ring and the bottom square hole, which causes excitation of the Fano resonance. The Fano resonance causes a significant enhancement of the local magnetic field, resulting in a larger Faraday rotation (FR). The resonance also brings about a sign reversal of FR, which is related to the direction of the Lorentz force on electrons. Similar effects also exist in the three-dimensional nanopillar structure and the three-dimensional nanoring structure in the simulation results. Due to the high flexibility of FIB machining, the height and shape of the three-dimensional split-ring can be arbitrarily changed, which means the FR intensity and the position of the FR null point are tunable. The designed three-dimensional structures provide a new route to regulate the Faraday effect, and broaden the possibilities for the design and construction of MO devices.
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Affiliation(s)
- Tong-Huai Cheng
- Tianjin Key Lab for Rare Earth Materials and Applications, Center for Rare Earth and Inorganic Functional Materials, School of Materials Science and Engineering, Nankai University, Tianjin 300350, China.
| | - Weihao Yang
- National Engineering Research Center of Electromagnetic Radiation Control Materials, State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, China.
| | - Zhaochao Liu
- Tianjin Key Lab for Rare Earth Materials and Applications, Center for Rare Earth and Inorganic Functional Materials, School of Materials Science and Engineering, Nankai University, Tianjin 300350, China.
| | - Hua Yu Feng
- School of Microelectronics, Shandong University, Ji'nan 250100, China.
| | - Jun Qin
- National Engineering Research Center of Electromagnetic Radiation Control Materials, State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, China.
| | - Yifei Ma
- Tianjin Key Lab for Rare Earth Materials and Applications, Center for Rare Earth and Inorganic Functional Materials, School of Materials Science and Engineering, Nankai University, Tianjin 300350, China.
| | - Shicheng Li
- Tianjin Key Lab for Rare Earth Materials and Applications, Center for Rare Earth and Inorganic Functional Materials, School of Materials Science and Engineering, Nankai University, Tianjin 300350, China.
| | - Lei Bi
- National Engineering Research Center of Electromagnetic Radiation Control Materials, State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, China.
| | - Feng Luo
- Tianjin Key Lab for Rare Earth Materials and Applications, Center for Rare Earth and Inorganic Functional Materials, School of Materials Science and Engineering, Nankai University, Tianjin 300350, China.
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Ding W, Ding Q, Chen K, Zhang M, Lv L, Feng DD, Bi L, Kim J, Huang Q. A Shortened Model for Logan Reference Plot Implemented via the Self-Supervised Neural Network for Parametric PET Imaging. IEEE Trans Med Imaging 2023; 42:2842-2852. [PMID: 37043322 DOI: 10.1109/tmi.2023.3266455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Dynamic PET imaging provides superior physiological information than conventional static PET imaging. However, the dynamic information is gained at the cost of a long scanning protocol; this limits the clinical application of dynamic PET imaging. We developed a modified Logan reference plot model to shorten the acquisition procedure in dynamic PET imaging by omitting the early-time information necessary for the conventional reference Logan model. The proposed model is accurate theoretically, but the straightforward approach raises the sampling problem in implementation and results in noisy parametric images. We then designed a self-supervised convolutional neural network to increase the noise performance of parametric imaging, with dynamic images of only a single subject for training. The proposed method was validated via simulated and real dynamic [Formula: see text]-fallypride PET data. Results showed that it accurately estimated the distribution volume ratio (DVR) in dynamic PET with a shortened scanning protocol, e.g., 20 minutes, where the estimations were comparable with those obtained from a standard dynamic PET study of 120 minutes of acquisition. Further comparisons illustrated that our method outperformed the shortened Logan model implemented with Gaussian filtering, regularization, BM4D and the 4D deep image prior methods in terms of the trade-off between bias and variance. Since the proposed method uses data acquired in a short period of time upon the equilibrium, it has the potential to add clinical values by providing both DVR and Standard Uptake Value (SUV) simultaneously. It thus promotes clinical applications of dynamic PET studies when neuronal receptor functions are studied.
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22
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Zhang S, Qiu Y, Huang L, Bi L, Guo Y, You K, Huang G, Wang Y, Lu H, Jin H, Shan H. Ankylosing spondylitis PET imaging and quantifications via P2X7 receptor-targeting radioligand [ 18F]GSK1482160. Eur J Nucl Med Mol Imaging 2023; 50:3589-3601. [PMID: 37466648 DOI: 10.1007/s00259-023-06342-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Accepted: 07/12/2023] [Indexed: 07/20/2023]
Abstract
PURPOSE Ankylosing spondylitis (AS) is a chronic inflammatory disease of the axial spine; however, the quantitative detection of inflammation in AS remains a challenge in clinical settings. We aimed to investigate the feasibility of using a specific P2X7R-targeting 18F-labeled tracer [18F]GSK1482160 for positron emission tomography (PET) imaging and the quantification of AS. METHODS The radioligand [18F]GSK1482160 was obtained based on nucleophilic aliphatic substitution. Dynamic [18F]GSK1482160 and [18F]FDG micro-PET/CT imaging were performed on AS mice (n = 8) and age-matched controls (n = 8). Tracer kinetics modeling was performed using Logan's graphical arterial input function analysis to quantify the in vivo expression of P2X7R. The post-PET tissues were collected for hematoxylin-eosin (H&E), immunohistochemical (IHC), and immunofluorescence (IF) staining. RESULTS [18F]GSK1482160 PET/CT imaging revealed that the specific binding in the ankle joint and sacroiliac joint (SIJ) of the AS at 8 weeks group (BPNDankle-AS-8W (non-displaceable binding potential of the ankle) 3.931 ± 0.74; BPND SIJ-AS-8W (BPBD of the SIJ) 4.225 ± 0.84) were significantly higher than the controls at 8 weeks group (BPNDankle-Ctr-8W 0.325 ± 0.15, BPNDSJJ-Ctr-8W 0.319 ± 0.17) respectively, and the AS at 14 weeks group (BPNDankle-AS-14W 12.212 ± 2.25; BPNDSJJ-AS-14W 13.389 ± 3.60) were significantly higher than the controls at 14 weeks group (BPNDankle-Ctr-14W 0.204 ± 0.16, BPNDSJJ-Ctr-14W 0.655 ± 0.35) respectively. The four groups had no significant difference in the [18F]FDG uptake of ankle and SIJ. IHC and IF staining revealed that the overexpression of P2X7R was colocalized with activated macrophages from the ankle synovium and spinal endplate in mice with AS, indicating that quantification of P2X7R may contribute to the understanding of the pathogenesis of inflammation in human AS. CONCLUSION This study developed a novel P2X7R-targeting PET tracer [18F]GSK1482160 to detect the expression of P2X7R in AS mouse models and provided powerful non-invasive PET imaging and quantification for AS.
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Affiliation(s)
- Shiyanjin Zhang
- Department of Spine Surgery, Sun Yat-Sen University Fifth Affiliated Hospital, Zhuhai, 519000, Guangdong Province, China
| | - Yifan Qiu
- Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, 519000, Guangdong Province, China
| | - Lihua Huang
- Department of Spine Surgery, Sun Yat-Sen University Fifth Affiliated Hospital, Zhuhai, 519000, Guangdong Province, China
- Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, 519000, Guangdong Province, China
| | - Lei Bi
- Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, 519000, Guangdong Province, China
| | - Yuanqing Guo
- Department of Spine Surgery, Sun Yat-Sen University Fifth Affiliated Hospital, Zhuhai, 519000, Guangdong Province, China
| | - Ke You
- Department of Spine Surgery, Sun Yat-Sen University Fifth Affiliated Hospital, Zhuhai, 519000, Guangdong Province, China
| | - Guolong Huang
- Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, 519000, Guangdong Province, China
| | - Yuhan Wang
- Department of Spine Surgery, Sun Yat-Sen University Fifth Affiliated Hospital, Zhuhai, 519000, Guangdong Province, China
| | - Hai Lu
- Department of Spine Surgery, Sun Yat-Sen University Fifth Affiliated Hospital, Zhuhai, 519000, Guangdong Province, China.
| | - Hongjun Jin
- Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, 519000, Guangdong Province, China.
| | - Hong Shan
- Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, 519000, Guangdong Province, China
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23
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Liu M, Xia S, Wan W, Qin J, Li H, Zhao C, Bi L, Qiu CW. Broadband mid-infrared non-reciprocal absorption using magnetized gradient epsilon-near-zero thin films. Nat Mater 2023; 22:1196-1202. [PMID: 37592027 DOI: 10.1038/s41563-023-01635-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Accepted: 07/10/2023] [Indexed: 08/19/2023]
Abstract
The study of magneto-optical absorption has stimulated diverse energy-technology-related explorations, showing potential in breaking the current theoretical efficiency limits of energy devices compared with reciprocal counterparts. However, experimentally realizing strong infrared non-reciprocal absorption remains an open challenge, and existing proposals of non-reciprocal absorbers are restricted to a narrow working waveband. Here we observe highly asymmetric absorption spectra over a broad mid-infrared band (nearly 10 μm) using doped InAs multilayers with gradient epsilon-near-zero frequencies. We reveal that the magnetized epsilon-near-zero behaviours and material loss play important roles in achieving strongly non-reciprocal absorption under a moderate external magnetic field using a thin epsilon-near-zero film (<λ/40, λ is the wavelength). Our approach enables flexible control over the working frequencies and non-reciprocal bandwidths by designing magnetized InAs films with different doping concentrations. The proposed principles can also be generalized to other III-V semiconductors, magnetized metals, topological Weyl semimetals, magnetized zero-index metamaterials and metasurfaces.
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Affiliation(s)
- Mengqi Liu
- Institute of Engineering Thermophysics, MOE Key Laboratory for Power Machinery and Engineering, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai, China
- Department of Electrical and Computer Engineering, National University of Singapore, Singapore, Singapore
| | - Shuang Xia
- National Engineering Research Center of Electromagnetic Radiation Control Materials, University of Electronic Science and Technology of China, Chengdu, China
- State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, China
| | - Wenjian Wan
- Key Laboratory of Terahertz Solid State Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, China
| | - Jun Qin
- National Engineering Research Center of Electromagnetic Radiation Control Materials, University of Electronic Science and Technology of China, Chengdu, China
- State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, China
| | - Hua Li
- Key Laboratory of Terahertz Solid State Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, China.
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Science, Beijing, China.
| | - Changying Zhao
- Institute of Engineering Thermophysics, MOE Key Laboratory for Power Machinery and Engineering, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai, China.
| | - Lei Bi
- National Engineering Research Center of Electromagnetic Radiation Control Materials, University of Electronic Science and Technology of China, Chengdu, China.
- State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, China.
| | - Cheng-Wei Qiu
- Department of Electrical and Computer Engineering, National University of Singapore, Singapore, Singapore.
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Wang Z, Bi L, Kong S. Flexible implementation of the particle shape and internal inhomogeneity in the invariant imbedding T-matrix method. Opt Express 2023; 31:29427-29439. [PMID: 37710743 DOI: 10.1364/oe.498190] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Accepted: 08/10/2023] [Indexed: 09/16/2023]
Abstract
We report a new implementation of the invariant imbedding T-matrix (IITM) method based on a discrete spherical grid approach for representing the particle shape and internal inhomogeneity. The new version of the IITM (referred to as the IITM-discrete) improves the flexibility of the IITM-especially for inhomogeneous particles. It is much more convenient for specifying the particle morphology in the electromagnetic wave scattering simulations. Particle shape is represented by a series of discrete spherical layers ranging from the inscribed sphere to the circumscribed sphere. Spherical layers are discretized by the centroidal Voronoi tessellation (CVT) approach. The procedure of computing the U-matrix (the only shape-dependent module in the T-matrix program) is simplified upon using the gridded particle shape and refractive index information saved in an external file. The grid resolution is a key factor that determines the numerical accuracy and computational cost. Numerical tests of IITM-discrete show its compatibility with other light scattering methods. Using IITM-discrete, we found that the internal inhomogeneity could have large impact on dust optical properties.
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Zhou C, Han X, Bi L. Quantifying the coherent backscatter enhancement of non-spherical particles with discrete dipole approximation. Opt Express 2023; 31:24183-24193. [PMID: 37475251 DOI: 10.1364/oe.494447] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Accepted: 06/14/2023] [Indexed: 07/22/2023]
Abstract
The prevailing backscattering peak associated with the scattering phase function of large non-absorptive particles can be interpreted with the coherent backscatter enhancement (CBE) theory, but has not been explicitly quantified with numerical simulations based on solving Maxwell's equations. In this paper, representative numerical simulations performed with the discrete-dipole-approximation (DDA) model are used to quantify the effect of CBE on the single-scattering phase function. For each scattering case, the particle volume was divided into multiple thin slices parallel to the incident beam. The dipole polarizations in the j'th slice in response to the incident field of the i'th slice were computed, and then the corresponding contribution to the scattering phase function was calculated. Interference between conjugate terms representing reversible wave paths is constructive at the backscattering direction, which corresponds to the CBE. Subsequently, the contribution of CBE to the scattering phase function was quantified by comparing the electric fields calculated with and without the interference between conjugate terms. Results from these numerical simulations are consistent with conclusions obtained from the CBE theory. The simulations also quantitatively explain why it is difficult to identify a CBE-induced backscattering peak for the phase function of small particles and strong-absorptive particles.
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Bi L, Fulham M, Song S, Feng DD, Kim J. Hyper-Connected Transformer Network for Multi-Modality PET-CT Segmentation. Annu Int Conf IEEE Eng Med Biol Soc 2023; 2023:1-4. [PMID: 38083369 DOI: 10.1109/embc40787.2023.10340635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2023]
Abstract
[18F]-Fluorodeoxyglucose (FDG) positron emission tomography - computed tomography (PET-CT) has become the imaging modality of choice for diagnosing many cancers. Co-learning complementary PET-CT imaging features is a fundamental requirement for automatic tumor segmentation and for developing computer aided cancer diagnosis systems. In this study, we propose a hyper-connected transformer (HCT) network that integrates a transformer network (TN) with a hyper connected fusion for multi-modality PET-CT images. The TN was leveraged for its ability to provide global dependencies in image feature learning, which was achieved by using image patch embeddings with a self-attention mechanism to capture image-wide contextual information. We extended the single-modality definition of TN with multiple TN based branches to separately extract image features. We also introduced a hyper connected fusion to fuse the contextual and complementary image features across multiple transformers in an iterative manner. Our results with two clinical datasets show that HCT achieved better performance in segmentation accuracy when compared to the existing methods.Clinical Relevance-We anticipate that our approach can be an effective and supportive tool to aid physicians in tumor quantification and in identifying image biomarkers for cancer treatment.
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Du M, Liu J, Wang F, Bi L, Ma C, Song M, Jiang G. A sustained-release microcarrier effectively prolongs and enhances the antibacterial activity of lysozyme. J Environ Sci (China) 2023; 129:128-138. [PMID: 36804229 DOI: 10.1016/j.jes.2022.09.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 08/31/2022] [Accepted: 09/02/2022] [Indexed: 06/18/2023]
Abstract
Bacterial infections have become a great threat to public health in recent years. A primary lysozyme is a natural antimicrobial protein; however, its widespread application is limited by its instability. Here, we present a poly (N-isopropylacrylamide) hydrogel inverse opal particle (PHIOP) as a microcarrier of lysozyme to prolong and enhance the efficiency against bacteria. This PHIOP-based lysozyme (PHIOP-Lys) formulation is temperature-responsive and exhibits long-term sustained release of lysozyme for up to 16 days. It shows a potent antibacterial effect toward both Escherichia coli and Staphylococcus aureus, which is even higher than that of free lysozyme in solution at the same concentration. PHIOPs-Lys were demonstrated to effectively inhibit bacterial infections and enhance wound healing in a full-thickness skin wound rat model. This study provides a novel pathway for prolonging the enzymatic activity and antibacterial effects of lysozyme.
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Affiliation(s)
- Mei Du
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Science, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jingzhang Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Science, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Fengbang Wang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Science, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lei Bi
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Science, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Chunyan Ma
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Science, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Maoyong Song
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Science, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Guibin Jiang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Science, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
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Xue Y, Peng Y, Bi L, Feng D, Kim J. CG-3DSRGAN: A classification guided 3D generative adversarial network for image quality recovery from low-dose PET images. Annu Int Conf IEEE Eng Med Biol Soc 2023; 2023:1-4. [PMID: 38083742 DOI: 10.1109/embc40787.2023.10341112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2023]
Abstract
Positron emission tomography (PET) is the most sensitive molecular imaging modality routinely applied in our modern healthcare. High radioactivity caused by the injected tracer dose is a major concern in PET imaging and limits its clinical applications. However, reducing the dose leads to inadequate image quality for diagnostic practice. Motivated by the need to produce high quality images with minimum 'low-dose', convolutional neural networks (CNNs) based methods have been developed for high quality PET synthesis from its low-dose counterparts. Previous CNNs-based studies usually directly map low-dose PET into features space without consideration of different dose reduction level. In this study, a novel approach named CG-3DSRGAN (Classification-Guided Generative Adversarial Network with Super Resolution Refinement) is presented. Specifically, a multi-tasking coarse generator, guided by a classification head, allows for a more comprehensive understanding of the noise-level features present in the low-dose data, resulting in improved image synthesis. Moreover, to recover spatial details of standard PET, an auxiliary super resolution network - Contextual-Net - is proposed as a second-stage training to narrow the gap between coarse prediction and standard PET. We compared our method to the state-of-the-art methods on whole-body PET with different dose reduction factors (DRF). Experiments demonstrate our method can outperform others on all DRF.Clinical Relevance- Low-Dose PET, PET recovery, GAN, task driven image synthesis, super resolution.
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Xiao Y, Mei C, Xu D, Yang F, Yang M, Bi L, Mao J, Pang P, Li D. Identification of a CEACAM5 targeted nanobody for positron emission tomography imaging and near-infrared fluorescence imaging of colorectal cancer. Eur J Nucl Med Mol Imaging 2023; 50:2305-2318. [PMID: 36914753 DOI: 10.1007/s00259-023-06183-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Accepted: 02/28/2023] [Indexed: 03/16/2023]
Abstract
PURPOSE Here, we aim to identify a CEACAM5-targeted nanobody and demonstrate its application in positron emission tomography (PET) imaging and near-infrared (NIR) fluorescence imaging in colorectal cancer (CRC). METHODS Immunohistochemistry was applied to verify CEACAM5 expression in CRC and metastatic lymph nodes (mLNs). CEACAM5-targeted nanobodies were obtained by immunization of human CEACAM5 protein in a dromedary, followed by several rounds of phage screenings. Immunofluorescence staining and flow cytometry was carried out to determine the binding affinity of the nanobodies. The nanobodies were radiolabeled by coupling 18F-SFB for PET imaging of CRC subcutaneous xenografts and lymph node metastasis (LNM). IRDye800CW (IR800) were conjugated to form NIR probes for NIR imaging in CRC subcutaneous models. RESULTS CEACAM5 was overexpressed in either human CRC tissues or mLNs. A CEACAM5 targeted nanobody, Nb41 was successfully generated, with excellent in vitro binding properties. Incorporation of albumin binding domain (ABD) did not affect the affinity of Nb41. In vivo imaging showed that both 18F-FB-Nb41 and 18F-FB-Nb41-ABD showed obvious accumulation in the tumor. Due to the longer retention in the blood, 18F-FB-Nb41-ABD enrichment in tumors was significantly delayed but higher compared to 18F-FB-Nb41. Both 18F-FB-Nb41 and 18F-FB-Nb41-ABD showed prominent LNM enrichment. Similarly, the IR800-conjugated nanobodies Nb41-IR800 and Nb41-ABD-IR800 exhibited superior imaging effects in subcutaneous models, while Nb41-ABD-IR800 exhibited higher fluorescence intensity in the tumor accompanied with a remarkedly delay compared to Nb41-IR800. CONCLUSION Collectively, we presented the identification and in vivo validation of a CEACAM5-targeted nanobody and a fused nanobody with an ABD, which enabled to the non-invasive visualization of malignancy of CRC using PET imaging and NIR imaging in subcutaneous models as well as LNM models.
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Affiliation(s)
- Yitai Xiao
- Department of Nuclear Medicine, The Fifth Affiliated Hospital, Sun Yat-Sen University, Guangdong Province, 519000, China
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-Sen University, Guangdong Province, 519000, China
| | - Chaoming Mei
- Department of Nuclear Medicine, The Fifth Affiliated Hospital, Sun Yat-Sen University, Guangdong Province, 519000, China
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-Sen University, Guangdong Province, 519000, China
| | - Duo Xu
- Department of Nuclear Medicine, The Fifth Affiliated Hospital, Sun Yat-Sen University, Guangdong Province, 519000, China
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-Sen University, Guangdong Province, 519000, China
| | - Fan Yang
- Department of Nuclear Medicine, The Fifth Affiliated Hospital, Sun Yat-Sen University, Guangdong Province, 519000, China
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-Sen University, Guangdong Province, 519000, China
| | - Meilin Yang
- Department of Nuclear Medicine, The Fifth Affiliated Hospital, Sun Yat-Sen University, Guangdong Province, 519000, China
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-Sen University, Guangdong Province, 519000, China
| | - Lei Bi
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-Sen University, Guangdong Province, 519000, China
| | - Junjie Mao
- Center for Interventional Medicine, The Fifth Affiliated Hospital, Sun Yat-Sen University, Guangdong Province, 519000, China.
| | - Pengfei Pang
- Center for Interventional Medicine, The Fifth Affiliated Hospital, Sun Yat-Sen University, Guangdong Province, 519000, China.
| | - Dan Li
- Department of Nuclear Medicine, The Fifth Affiliated Hospital, Sun Yat-Sen University, Guangdong Province, 519000, China.
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-Sen University, Guangdong Province, 519000, China.
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Guo Y, Bi L, Wei D, Chen L, Zhu Z, Feng D, Zhang R, Wang Q, Kim J. Unsupervised Landmark Detection-Based Spatiotemporal Motion Estimation for 4-D Dynamic Medical Images. IEEE Trans Cybern 2023; 53:3532-3545. [PMID: 34851845 DOI: 10.1109/tcyb.2021.3126817] [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: 05/18/2023]
Abstract
Motion estimation is a fundamental step in dynamic medical image processing for the assessment of target organ anatomy and function. However, existing image-based motion estimation methods, which optimize the motion field by evaluating the local image similarity, are prone to produce implausible estimation, especially in the presence of large motion. In addition, the correct anatomical topology is difficult to be preserved as the image global context is not well incorporated into motion estimation. In this study, we provide a novel motion estimation framework of dense-sparse-dense (DSD), which comprises two stages. In the first stage, we process the raw dense image to extract sparse landmarks to represent the target organ's anatomical topology, and discard the redundant information that is unnecessary for motion estimation. For this purpose, we introduce an unsupervised 3-D landmark detection network to extract spatially sparse but representative landmarks for the target organ's motion estimation. In the second stage, we derive the sparse motion displacement from the extracted sparse landmarks of two images of different time points. Then, we present a motion reconstruction network to construct the motion field by projecting the sparse landmarks' displacement back into the dense image domain. Furthermore, we employ the estimated motion field from our two-stage DSD framework as initialization and boost the motion estimation quality in light-weight yet effective iterative optimization. We evaluate our method on two dynamic medical imaging tasks to model cardiac motion and lung respiratory motion, respectively. Our method has produced superior motion estimation accuracy compared to the existing comparative methods. Besides, the extensive experimental results demonstrate that our solution can extract well-representative anatomical landmarks without any requirement of manual annotation. Our code is publicly available online: https://github.com/yyguo-sjtu/DSD-3D-Unsupervised-Landmark-Detection-Based-Motion-Estimation.
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Pan L, Zhang F, Ran Y, Bi L, Jin H, Yao L. The role of ( 18F)-fluoro-D-glucose positron emission tomography/computed tomography in the surveillance of abnormal myocardial energy metabolism and cardiac dysfunction in a rat model of cardiopulmonary resuscitation. Diagn Interv Radiol 2023; 29:548-554. [PMID: 37154799 PMCID: PMC10679618 DOI: 10.4274/dir.2023.221932] [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: 10/02/2022] [Accepted: 03/26/2023] [Indexed: 05/10/2023]
Abstract
PURPOSE To investigate the feasibility and usefulness of 2-deoxy-2-(18F)-fluoro-D-glucose positron emission tomography/computed tomography [(18F)-FDG PET/CT] as a novel examination in the surveillance of abnormal myocardial energy metabolism and cardiac dysfunction after cardiopulmonary resuscitation (CPR). METHODS Thirteen male Sprague-Dawley rats were randomly divided into a sham group (n = 4), CPR group (n = 4), and trimetazidine (TMZ) + CPR group (n = 5). The expression levels of the myocardial injury marker cardiac troponin I (CTNI) in serum were tested at 6 hours after CPR or TMZ + CPR. The ejection fraction and fraction shortening were evaluated by echocardiography. (18F)-FDG PET/CT was used to measure the FDG uptake and the standardized uptake value (SUV) after CPR or TMZ + CPR for 6 hours. The intermediary carbohydrate metabolites of glycolysis including phosphoenolpyruvate, 3-phospho-D-glycerate, and the lactate/pyruvate ratio were detected through the multiple reaction monitoring approach. Simultaneously, the authors also tested the expression levels of the total adenosine triphosphate (ATP) and the key intermediate products of glucose ovidation as alpha ketoglutarate, citrate, and succinate in the myocardium. RESULTS The authors found that the aerobic oxidation of glucose was reduced, and the anaerobic glycolysis was significantly enhanced in the myocardium in the early stage of CPR. Meanwhile, the myocardial injury marker CTNI was upregulated considerably (P = 0.014, P = 0.021), and the left ventricular function of the animal heart also markedly deteriorated with the downregulation of ATP after CPR. In contrast, myocardial injury and cardiac function were greatly improved with the increase of ATP in the CPR + TMZ group. In addition, aerobic glucose oxidation metabolites were significantly increased (P < 0.05) and anaerobic glycolysis metabolites were significantly decreased (P < 0.05) after CPR in the myocardium. Surprisingly, (18F)-FDG PET/CT could track the above changes by detecting the FDG uptake value and the SUV. CONCLUSION Glucose metabolism is an essential factor for myocardial self-repair after CPR. (18F) FDG PET/CT, as a non-invasive technology, can monitor myocardial energy metabolism and cardiac function by tracking changes in glucose metabolism after CPR.
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Affiliation(s)
- Liming Pan
- Department of Emergency, the Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, China
| | - Fan Zhang
- Department of Emergency, the Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, China
| | - Yingqi Ran
- Department of Emergency, the Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, China
| | - Lei Bi
- Key Laboratory of Biomedical Imaging, Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, China
| | - Hongjun Jin
- Key Laboratory of Biomedical Imaging, Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, China
| | - Lan Yao
- Department of Emergency, the Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, China
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Bi L, Celebi ME, Iyatomi H, Fernandez-Penas P, Kim J. Image analysis in advanced skin imaging technology. Comput Methods Programs Biomed 2023; 238:107599. [PMID: 37244232 DOI: 10.1016/j.cmpb.2023.107599] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Affiliation(s)
- Lei Bi
- Institute of Translational Medicine, National Center for Translational Medicine, Shanghai Jiao Tong University, Shanghai, China; School of Computer Science, University of Sydney, NSW, Australia.
| | - M Emre Celebi
- Department of Computer Science and Engineering, University of Central Arkansas, Conway, AR, USA
| | - Hitoshi Iyatomi
- Faculty of Science and Engineering, Hosei University, Tokyo, Japan
| | - Pablo Fernandez-Penas
- Department of Dermatology, Westmead Hospital, NSW, Australia; Sydney Medical School, Faculty of Medicine and Health, The University of Sydney, NSW, Australia
| | - Jinman Kim
- School of Computer Science, University of Sydney, NSW, Australia
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Ye P, Bi L, Yang M, Qiu Y, Huang G, Liu Y, Hou Y, Li Z, Tong HHY, Cui M, Jin H. Activated Microglia in the Early Stage of a Rat Model of Parkinson's Disease: Revealed by PET-MRI Imaging by [ 18F]DPA-714 Targeting TSPO. ACS Chem Neurosci 2023. [PMID: 37146429 DOI: 10.1021/acschemneuro.3c00080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/07/2023] Open
Abstract
In the past decades, translocator protein (TSPO) has been considered as an in vivo biomarker to measure the presence of neuroinflammatory reactions. In this study, expression of TSPO was quantified via [18F]DPA-714 positron emission tomography-magnetic resonance imaging (PET-MRI) imaging to investigate the effects of microglial activation associated with motor behavioral impairments in the 6-hydroxydopamine (6-OHDA)-treated rodent model of Parkinson's disease (PD). [18F]FDG PET-MRI (for non-specific inflammation), [18F]D6-FP-(+)-DTBZ PET-MRI (for damaged dopaminergic neurons), post-PET immunofluorescence, and Pearson's correlation analyses were also performed. The time course of the striatal [18F]DPA-714 binding ratio elevated in 6-OHDA-treated rats during 1-3 weeks post-treatment, with the peak TSPO binding in the 1st week. No differences between bilateral striatum in [18F]FDG PET imaging were found. Moreover, an obvious correlation between [18F]DPA-714 SUVRR/L and rotation numbers was found (r = 0.434, *p = 0.049). No correlation between [18F]FDG SUVRR/L and rotation behavior was found. [18F]DPA-714 appeared to be a potential PET tracer for imaging the microglia-mediated neuroinflammation in the early stage of PD.
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Affiliation(s)
- Peizhen Ye
- Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong 519000, China
| | - Lei Bi
- Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong 519000, China
| | - Min Yang
- Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong 519000, China
| | - Yifan Qiu
- Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong 519000, China
| | - Guolong Huang
- Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong 519000, China
| | - Yongshan Liu
- Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong 519000, China
| | - Yuyi Hou
- Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong 519000, China
| | - Zhijun Li
- Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong 519000, China
| | - Henry Hoi Yee Tong
- Faculty of Health Sciences and Sports, Macao Polytechnic University, Macao SAR 999078, China
| | - Mengchao Cui
- College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Hongjun Jin
- Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong 519000, China
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Ye P, Bi L, Yang M, Qiu Y, Huang G, Liu Y, Hou Y, Li Z, Yee Tong HH, Cui M, Jin H. Activated Microglia in the Early Stage of a Rat Model of Parkinson's Disease: Revealed by PET-MRI Imaging by [ 18F]DPA-714 Targeting TSPO. ACS Chem Neurosci 2023. [PMID: 37134001 DOI: 10.1021/acschemneuro.3c00202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/04/2023] Open
Abstract
In the past decades, translocator protein (TSPO) has been considered as an in vivo biomarker to measure the presence of neuroinflammatory reactions. In this study, expression of TSPO was quantified via [18F]DPA-714 positron emission tomography-magnetic resonance imaging (PET-MRI) to investigate the effects of microglial activation associated with motor behavioral impairments in the 6-hydroxydopamine (6-OHDA)-treated rodent model of Parkinson's disease (PD). [18F]FDG PET-MRI (for non-specific inflammation), [18F]D6-FP-(+)-DTBZ PET-MRI (for damaged dopaminergic (DA) neurons), post-PET immunofluorescence, and Pearson's correlation analyses were also performed. The time course of striatal [18F]DPA-714 binding ratio was elevated in 6-OHDA-treated rats during 1-3 weeks post-treatments, with peak TSPO binding in the 1st week. No difference between the bilateral striatum in [18F]FDG PET imaging were found. Moreover, an obvious correlation between [18F]DPA-714 SUVRR/L and rotation numbers was found (r = 0.434, *p = 0.049). No correlation between [18F]FDG SUVRR/L and rotation behavior was found. [18F]DPA-714 appeared to be a potential PET tracer for imaging the microglia-mediated neuroinflammation in the early stage of PD.
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Affiliation(s)
- Peizhen Ye
- Guangdong Provincial Engineering Research Center of Molecular Imaging, the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai City 519000, Guangdong Province, China
| | - Lei Bi
- Guangdong Provincial Engineering Research Center of Molecular Imaging, the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai City 519000, Guangdong Province, China
| | - Min Yang
- Guangdong Provincial Engineering Research Center of Molecular Imaging, the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai City 519000, Guangdong Province, China
| | - Yifan Qiu
- Guangdong Provincial Engineering Research Center of Molecular Imaging, the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai City 519000, Guangdong Province, China
| | - Guolong Huang
- Guangdong Provincial Engineering Research Center of Molecular Imaging, the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai City 519000, Guangdong Province, China
| | - Yongshan Liu
- Guangdong Provincial Engineering Research Center of Molecular Imaging, the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai City 519000, Guangdong Province, China
| | - Yuyi Hou
- Guangdong Provincial Engineering Research Center of Molecular Imaging, the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai City 519000, Guangdong Province, China
| | - Zhijun Li
- Guangdong Provincial Engineering Research Center of Molecular Imaging, the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai City 519000, Guangdong Province, China
| | - Henry Hoi Yee Tong
- Faculty of Health Sciences and Sports, Macao Polytechnic University, Macao SAR 999078, China
| | - Mengchao Cui
- College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Hongjun Jin
- Guangdong Provincial Engineering Research Center of Molecular Imaging, the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai City 519000, Guangdong Province, China
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He K, Tang T, Bi L, Liang X, Li J, Li C, Qin J, Kang T. Polarization-dependent reconfigurable light field manipulation by liquid-immersion metasurface. Opt Express 2023; 31:13739-13750. [PMID: 37157255 DOI: 10.1364/oe.483593] [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: 05/10/2023]
Abstract
Traditional grating lenses can accumulate phase for adjusting wavefronts, and plasmonic resonances can be excited in metasurfaces with discrete structures for optical field modulation. Diffractive and plasma optics have been developing in parallel, with easy processing, small size, and dynamic control advantages. Due to theoretical hybridization, structural design can combine advantages and show great potential value. Changing the shape and size of the flat metasurface can easily produce light field reflections, but changes in height are rarely cross-explored. We propose a graded metasurface with a single-structure periodic arrangement, which can mix the effects of plasmonic resonance and grating diffraction. As for solvents of different polarities, strong polarization-dependent beam reflections are produced, enabling versatile beam convergence and deflection. Dielectric/metal nanostructures with selective hydrophobic/hydrophilic properties can be arranged by the structural material specification to selectively settle the location of the solution in a liquid environment. Furthermore, the wetted metasurface is actively triggered to achieve spectral control and initiate polarization-dependent beam steering in the broadband visible light region. Actively reconfigurable polarization-dependent beam steering has potential applications in tunable optical displays, directional emission, beam manipulation and processing, and sensing technologies.
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Lian S, He L, Li C, Ren J, Bi L, Chen M, Lin Z. Uncovering the Enhancement Mechanism of the Oxygen Reduction Reaction on Perovskite/Ruddlesden-Popper Oxide Heterostructures (Nd,Sr)CoO 3/(Nd,Sr) 2CoO 4 and (Nd,Sr)CoO 3/(Nd,Sr) 3Co 2O 7. J Phys Chem Lett 2023; 14:2869-2877. [PMID: 36920163 DOI: 10.1021/acs.jpclett.2c03333] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Although the perovskite (Nd,Sr)CoO3 (NSC113)/Ruddlesden-Popper (R-P) oxide (Nd,Sr)2CoO4 (NSC214) heterostructure is reported to improve the oxygen reduction reaction (ORR) activity by 2-3 orders of magnitude, the enhancement mechanism remains unclear. For the first time, we conclude that there are two main factors that can enhance the ORR activity: (1) Oxygen adsorbed on such heterostructures would gain more electrons, promoting the oxygen adsorption. (2) The more distant rock-salt layers on the heterointerfaces can facilitate the insertion of interstitial oxygen and form a high-speed transport channel of interstitial oxygen. Moreover, the perovskite/double-layered R-P oxide heterostructure, which has not been reported yet, is predicted to have better ORR performance than the perovskite/single-layered R-P oxide heterostructure. Our work elucidates the ORR enhancement mechanism on perovskite/R-P oxide heterostructures from the atomic level, which is demonstrated by experiments and, thus, is very meaningful for the development of high-performance electrochemical devices.
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Affiliation(s)
- Sen Lian
- School of Physics and Electronics, Shandong Normal University, Jinan, Shandong 250358, People's Republic of China
| | - Lei He
- School of Physics and Electronics, Shandong Normal University, Jinan, Shandong 250358, People's Republic of China
| | - Congcong Li
- School of Physics and Electronics, Shandong Normal University, Jinan, Shandong 250358, People's Republic of China
| | - Junfeng Ren
- School of Physics and Electronics, Shandong Normal University, Jinan, Shandong 250358, People's Republic of China
| | - Lei Bi
- School of Resource Environment and Safety Engineering, University of South China, Hengyang, Hunan 421001, People's Republic of China
| | - Meina Chen
- School of Physics and Electronics, Shandong Normal University, Jinan, Shandong 250358, People's Republic of China
| | - Zijing Lin
- Department of Physics, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China
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Ali SG, Wang X, Li P, Jung Y, Bi L, Kim J, Chen Y, Feng DD, Magnenat Thalmann N, Wang J, Sheng B. A systematic review: Virtual-reality-based techniques for human exercises and health improvement. Front Public Health 2023; 11:1143947. [PMID: 37033028 PMCID: PMC10076722 DOI: 10.3389/fpubh.2023.1143947] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 03/06/2023] [Indexed: 04/11/2023] Open
Abstract
Virtual Reality (VR) has emerged as a new safe and efficient tool for the rehabilitation of many childhood and adulthood illnesses. VR-based therapies have the potential to improve both motor and functional skills in a wide range of age groups through cortical reorganization and the activation of various neuronal connections. Recently, the potential for using serious VR-based games that combine perceptual learning and dichoptic stimulation has been explored for the rehabilitation of ophthalmological and neurological disorders. In ophthalmology, several clinical studies have demonstrated the ability to use VR training to enhance stereopsis, contrast sensitivity, and visual acuity. The use of VR technology provides a significant advantage in training each eye individually without requiring occlusion or penalty. In neurological disorders, the majority of patients undergo recurrent episodes (relapses) of neurological impairment, however, in a few cases (60-80%), the illness progresses over time and becomes chronic, consequential in cumulated motor disability and cognitive deficits. Current research on memory restoration has been spurred by theories about brain plasticity and findings concerning the nervous system's capacity to reconstruct cellular synapses as a result of interaction with enriched environments. Therefore, the use of VR training can play an important role in the improvement of cognitive function and motor disability. Although there are several reviews in the community employing relevant Artificial Intelligence in healthcare, VR has not yet been thoroughly examined in this regard. In this systematic review, we examine the key ideas of VR-based training for prevention and control measurements in ocular diseases such as Myopia, Amblyopia, Presbyopia, and Age-related Macular Degeneration (AMD), and neurological disorders such as Alzheimer, Multiple Sclerosis (MS) Epilepsy and Autism spectrum disorder. This review highlights the fundamentals of VR technologies regarding their clinical research in healthcare. Moreover, these findings will raise community awareness of using VR training and help researchers to learn new techniques to prevent and cure different diseases. We further discuss the current challenges of using VR devices, as well as the future prospects of human training.
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Affiliation(s)
- Saba Ghazanfar Ali
- Department of Computer Science and Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Xiangning Wang
- Department of Ophthalmology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ping Li
- Department of Computing, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, China
- School of Design, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, China
| | - Younhyun Jung
- School of Computing, Gachon University, Seongnam, Republic of Korea
| | - Lei Bi
- Biomedical and Multimedia Information Technology Research Group, School of Computer Science, The University of Sydney, Sydney, NSW, Australia
| | - Jinman Kim
- Biomedical and Multimedia Information Technology Research Group, School of Computer Science, The University of Sydney, Sydney, NSW, Australia
| | - Yuting Chen
- Department of Computer Science and Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - David Dagan Feng
- Biomedical and Multimedia Information Technology Research Group, School of Computer Science, The University of Sydney, Sydney, NSW, Australia
| | | | - Jihong Wang
- Shanghai University of Sport, Shanghai, China
| | - Bin Sheng
- Department of Computer Science and Engineering, Shanghai Jiao Tong University, Shanghai, China
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Liu H, Wu R, Bi L, Xu X, Chen H. The value of RACK1 and peripheral blood M2/M1 monocyte ratio on the prognosis of patients with oral squamous cell carcinoma. Pak J Pharm Sci 2023; 36:631-638. [PMID: 37548201] [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: 08/08/2023]
Abstract
This study is to evaluate the effect of receptor for activated c kinase 1 (RACK1) and peripheral blood M2/M1 monocytes ratio on the prognosis of patients with oral squamous cell carcinoma (OSCC). A total of 115 OSCC patients who underwent radical surgery in North China University of Science and Technology Affiliated Hospital from January 2015 to December 2015 were included in the experimental group and 34 healthy individuals after a physical examination during the same period were included in the control group. Cancer and para-cancerous tissues were collected and the relationship between RACK1 and M2/M1 ratio and the prognosis of OSCC patients and its predictive value were analyzed. RACK1, M2/M1 ratio, clinical stages, lymphatic metastasis, recurrence and metastasis were considered independent factors for the prognosis of OSCC patients (p<0.05); In addition, RACK1 and the M2/M1 ratio were proven to be of significant predictive values for the prognosis of OSCC patients (p<0.05). RACK1 and peripheral blood M2/M1 monocytes ratio demonstrate great potential as prognostic predictors of OSCC patients.
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Affiliation(s)
- Hui Liu
- Department of Dental, North China University of Science and Technology Affiliated Hospital, Tangshan, Hebei, China
| | - Ran Wu
- Department of Dental, North China University of Science and Technology Affiliated Hospital, Tangshan, Hebei, China
| | - Lei Bi
- Department of Dental, North China University of Science and Technology Affiliated Hospital, Tangshan, Hebei, China
| | - Xiaoliang Xu
- Tangshan Second Hospital, Tangshan, Hebei, China
| | - Hui Chen
- Department of Dental, North China University of Science and Technology Affiliated Hospital, Tangshan, Hebei, China
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Bilic P, Christ P, Li HB, Vorontsov E, Ben-Cohen A, Kaissis G, Szeskin A, Jacobs C, Mamani GEH, Chartrand G, Lohöfer F, Holch JW, Sommer W, Hofmann F, Hostettler A, Lev-Cohain N, Drozdzal M, Amitai MM, Vivanti R, Sosna J, Ezhov I, Sekuboyina A, Navarro F, Kofler F, Paetzold JC, Shit S, Hu X, Lipková J, Rempfler M, Piraud M, Kirschke J, Wiestler B, Zhang Z, Hülsemeyer C, Beetz M, Ettlinger F, Antonelli M, Bae W, Bellver M, Bi L, Chen H, Chlebus G, Dam EB, Dou Q, Fu CW, Georgescu B, Giró-I-Nieto X, Gruen F, Han X, Heng PA, Hesser J, Moltz JH, Igel C, Isensee F, Jäger P, Jia F, Kaluva KC, Khened M, Kim I, Kim JH, Kim S, Kohl S, Konopczynski T, Kori A, Krishnamurthi G, Li F, Li H, Li J, Li X, Lowengrub J, Ma J, Maier-Hein K, Maninis KK, Meine H, Merhof D, Pai A, Perslev M, Petersen J, Pont-Tuset J, Qi J, Qi X, Rippel O, Roth K, Sarasua I, Schenk A, Shen Z, Torres J, Wachinger C, Wang C, Weninger L, Wu J, Xu D, Yang X, Yu SCH, Yuan Y, Yue M, Zhang L, Cardoso J, Bakas S, Braren R, Heinemann V, Pal C, Tang A, Kadoury S, Soler L, van Ginneken B, Greenspan H, Joskowicz L, Menze B. The Liver Tumor Segmentation Benchmark (LiTS). Med Image Anal 2023; 84:102680. [PMID: 36481607 PMCID: PMC10631490 DOI: 10.1016/j.media.2022.102680] [Citation(s) in RCA: 61] [Impact Index Per Article: 61.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2021] [Revised: 09/27/2022] [Accepted: 10/29/2022] [Indexed: 11/18/2022]
Abstract
In this work, we report the set-up and results of the Liver Tumor Segmentation Benchmark (LiTS), which was organized in conjunction with the IEEE International Symposium on Biomedical Imaging (ISBI) 2017 and the International Conferences on Medical Image Computing and Computer-Assisted Intervention (MICCAI) 2017 and 2018. The image dataset is diverse and contains primary and secondary tumors with varied sizes and appearances with various lesion-to-background levels (hyper-/hypo-dense), created in collaboration with seven hospitals and research institutions. Seventy-five submitted liver and liver tumor segmentation algorithms were trained on a set of 131 computed tomography (CT) volumes and were tested on 70 unseen test images acquired from different patients. We found that not a single algorithm performed best for both liver and liver tumors in the three events. The best liver segmentation algorithm achieved a Dice score of 0.963, whereas, for tumor segmentation, the best algorithms achieved Dices scores of 0.674 (ISBI 2017), 0.702 (MICCAI 2017), and 0.739 (MICCAI 2018). Retrospectively, we performed additional analysis on liver tumor detection and revealed that not all top-performing segmentation algorithms worked well for tumor detection. The best liver tumor detection method achieved a lesion-wise recall of 0.458 (ISBI 2017), 0.515 (MICCAI 2017), and 0.554 (MICCAI 2018), indicating the need for further research. LiTS remains an active benchmark and resource for research, e.g., contributing the liver-related segmentation tasks in http://medicaldecathlon.com/. In addition, both data and online evaluation are accessible via https://competitions.codalab.org/competitions/17094.
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Affiliation(s)
- Patrick Bilic
- Department of Informatics, Technical University of Munich, Germany
| | - Patrick Christ
- Department of Informatics, Technical University of Munich, Germany
| | - Hongwei Bran Li
- Department of Informatics, Technical University of Munich, Germany; Department of Quantitative Biomedicine, University of Zurich, Switzerland.
| | | | - Avi Ben-Cohen
- Department of Biomedical Engineering, Tel-Aviv University, Israel
| | - Georgios Kaissis
- Institute for AI in Medicine, Technical University of Munich, Germany; Institute for diagnostic and interventional radiology, Klinikum rechts der Isar, Technical University of Munich, Germany; Department of Computing, Imperial College London, London, United Kingdom
| | - Adi Szeskin
- School of Computer Science and Engineering, the Hebrew University of Jerusalem, Israel
| | - Colin Jacobs
- Department of Medical Imaging, Radboud University Medical Center, Nijmegen, The Netherlands
| | | | - Gabriel Chartrand
- The University of Montréal Hospital Research Centre (CRCHUM) Montréal, Québec, Canada
| | - Fabian Lohöfer
- Institute for diagnostic and interventional radiology, Klinikum rechts der Isar, Technical University of Munich, Germany
| | - Julian Walter Holch
- Department of Medicine III, University Hospital, LMU Munich, Munich, Germany; Comprehensive Cancer Center Munich, Munich, Germany; Division of Medical Image Computing, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Wieland Sommer
- Department of Radiology, University Hospital, LMU Munich, Germany
| | - Felix Hofmann
- Department of General, Visceral and Transplantation Surgery, University Hospital, LMU Munich, Germany; Department of Radiology, University Hospital, LMU Munich, Germany
| | - Alexandre Hostettler
- Department of Surgical Data Science, Institut de Recherche contre les Cancers de l'Appareil Digestif (IRCAD), France
| | - Naama Lev-Cohain
- Department of Radiology, Hadassah University Medical Center, Jerusalem, Israel
| | | | | | | | - Jacob Sosna
- Department of Radiology, Hadassah University Medical Center, Jerusalem, Israel
| | - Ivan Ezhov
- Department of Informatics, Technical University of Munich, Germany
| | - Anjany Sekuboyina
- Department of Informatics, Technical University of Munich, Germany; Department of Quantitative Biomedicine, University of Zurich, Switzerland
| | - Fernando Navarro
- Department of Informatics, Technical University of Munich, Germany; Department of Radiation Oncology and Radiotherapy, Klinikum rechts der Isar, Technical University of Munich, Germany; TranslaTUM - Central Institute for Translational Cancer Research, Technical University of Munich, Germany
| | - Florian Kofler
- Department of Informatics, Technical University of Munich, Germany; Institute for diagnostic and interventional neuroradiology, Klinikum rechts der Isar,Technical University of Munich, Germany; Helmholtz AI, Helmholtz Zentrum München, Neuherberg, Germany; TranslaTUM - Central Institute for Translational Cancer Research, Technical University of Munich, Germany
| | - Johannes C Paetzold
- Department of Computing, Imperial College London, London, United Kingdom; Institute for Tissue Engineering and Regenerative Medicine, Helmholtz Zentrum München, Neuherberg, Germany
| | - Suprosanna Shit
- Department of Informatics, Technical University of Munich, Germany
| | - Xiaobin Hu
- Department of Informatics, Technical University of Munich, Germany
| | - Jana Lipková
- Brigham and Women's Hospital, Harvard Medical School, USA
| | - Markus Rempfler
- Department of Informatics, Technical University of Munich, Germany
| | - Marie Piraud
- Department of Informatics, Technical University of Munich, Germany; Helmholtz AI, Helmholtz Zentrum München, Neuherberg, Germany
| | - Jan Kirschke
- Institute for diagnostic and interventional neuroradiology, Klinikum rechts der Isar,Technical University of Munich, Germany
| | - Benedikt Wiestler
- Institute for diagnostic and interventional neuroradiology, Klinikum rechts der Isar,Technical University of Munich, Germany
| | - Zhiheng Zhang
- Department of Hepatobiliary Surgery, the Affiliated Drum Tower Hospital of Nanjing University Medical School, China
| | | | - Marcel Beetz
- Department of Informatics, Technical University of Munich, Germany
| | | | - Michela Antonelli
- School of Biomedical Engineering & Imaging Sciences, King's College London, London, UK
| | | | | | - Lei Bi
- School of Computer Science, the University of Sydney, Australia
| | - Hao Chen
- Department of Computer Science and Engineering, The Hong Kong University of Science and Technology, China
| | - Grzegorz Chlebus
- Fraunhofer MEVIS, Bremen, Germany; Diagnostic Image Analysis Group, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Erik B Dam
- Department of Computer Science, University of Copenhagen, Denmark
| | - Qi Dou
- Department of Computer Science and Engineering, The Chinese University of Hong Kong, Hong Kong, China
| | - Chi-Wing Fu
- Department of Computer Science and Engineering, The Chinese University of Hong Kong, Hong Kong, China
| | | | - Xavier Giró-I-Nieto
- Signal Theory and Communications Department, Universitat Politecnica de Catalunya, Catalonia, Spain
| | - Felix Gruen
- Institute of Control Engineering, Technische Universität Braunschweig, Germany
| | - Xu Han
- Department of computer science, UNC Chapel Hill, USA
| | - Pheng-Ann Heng
- Department of Computer Science and Engineering, The Chinese University of Hong Kong, Hong Kong, China
| | - Jürgen Hesser
- Mannheim Institute for Intelligent Systems in Medicine, department of Medicine Mannheim, Heidelberg University, Germany; Interdisciplinary Center for Scientific Computing (IWR), Heidelberg University, Germany; Central Institute for Computer Engineering (ZITI), Heidelberg University, Germany
| | | | - Christian Igel
- Department of Computer Science, University of Copenhagen, Denmark
| | - Fabian Isensee
- Division of Medical Image Computing, German Cancer Research Center (DKFZ), Heidelberg, Germany; Helmholtz Imaging, Germany
| | - Paul Jäger
- Division of Medical Image Computing, German Cancer Research Center (DKFZ), Heidelberg, Germany; Helmholtz Imaging, Germany
| | - Fucang Jia
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, China
| | - Krishna Chaitanya Kaluva
- Medical Imaging and Reconstruction Lab, Department of Engineering Design, Indian Institute of Technology Madras, India
| | - Mahendra Khened
- Medical Imaging and Reconstruction Lab, Department of Engineering Design, Indian Institute of Technology Madras, India
| | | | - Jae-Hun Kim
- Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, South Korea
| | | | - Simon Kohl
- Division of Medical Image Computing, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Tomasz Konopczynski
- Interdisciplinary Center for Scientific Computing (IWR), Heidelberg University, Germany
| | - Avinash Kori
- Medical Imaging and Reconstruction Lab, Department of Engineering Design, Indian Institute of Technology Madras, India
| | - Ganapathy Krishnamurthi
- Medical Imaging and Reconstruction Lab, Department of Engineering Design, Indian Institute of Technology Madras, India
| | - Fan Li
- Sensetime, Shanghai, China
| | - Hongchao Li
- Department of Computer Science, Guangdong University of Foreign Studies, China
| | - Junbo Li
- Philips Research China, Philips China Innovation Campus, Shanghai, China
| | - Xiaomeng Li
- Department of Electrical and Electronic Engineering, The University of Hong Kong, China
| | - John Lowengrub
- Departments of Mathematics, Biomedical Engineering, University of California, Irvine, USA; Center for Complex Biological Systems, University of California, Irvine, USA; Chao Family Comprehensive Cancer Center, University of California, Irvine, USA
| | - Jun Ma
- Department of Mathematics, Nanjing University of Science and Technology, China
| | - Klaus Maier-Hein
- Pattern Analysis and Learning Group, Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany; Division of Medical Image Computing, German Cancer Research Center (DKFZ), Heidelberg, Germany; Helmholtz Imaging, Germany
| | | | - Hans Meine
- Fraunhofer MEVIS, Bremen, Germany; Medical Image Computing Group, FB3, University of Bremen, Germany
| | - Dorit Merhof
- Institute of Imaging & Computer Vision, RWTH Aachen University, Germany
| | - Akshay Pai
- Department of Computer Science, University of Copenhagen, Denmark
| | - Mathias Perslev
- Department of Computer Science, University of Copenhagen, Denmark
| | - Jens Petersen
- Division of Medical Image Computing, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Jordi Pont-Tuset
- Eidgenössische Technische Hochschule Zurich (ETHZ), Zurich, Switzerland
| | - Jin Qi
- School of Information and Communication Engineering, University of Electronic Science and Technology of China, China
| | - Xiaojuan Qi
- Department of Electrical and Electronic Engineering, The University of Hong Kong, China
| | - Oliver Rippel
- Institute of Imaging & Computer Vision, RWTH Aachen University, Germany
| | | | - Ignacio Sarasua
- Institute for diagnostic and interventional radiology, Klinikum rechts der Isar, Technical University of Munich, Germany; Department of Child and Adolescent Psychiatry, Ludwig-Maximilians-Universität, Munich, Germany
| | - Andrea Schenk
- Fraunhofer MEVIS, Bremen, Germany; Institute for Diagnostic and Interventional Radiology, Hannover Medical School, Hannover, Germany
| | - Zengming Shen
- Beckman Institute, University of Illinois at Urbana-Champaign, USA; Siemens Healthineers, USA
| | - Jordi Torres
- Barcelona Supercomputing Center, Barcelona, Spain; Universitat Politecnica de Catalunya, Catalonia, Spain
| | - Christian Wachinger
- Department of Informatics, Technical University of Munich, Germany; Institute for diagnostic and interventional radiology, Klinikum rechts der Isar, Technical University of Munich, Germany; Department of Child and Adolescent Psychiatry, Ludwig-Maximilians-Universität, Munich, Germany
| | - Chunliang Wang
- Department of Biomedical Engineering and Health Systems, KTH Royal Institute of Technology, Sweden
| | - Leon Weninger
- Institute of Imaging & Computer Vision, RWTH Aachen University, Germany
| | - Jianrong Wu
- Tencent Healthcare (Shenzhen) Co., Ltd, China
| | | | - Xiaoping Yang
- Department of Mathematics, Nanjing University, China
| | - Simon Chun-Ho Yu
- Department of Imaging and Interventional Radiology, Chinese University of Hong Kong, Hong Kong, China
| | - Yading Yuan
- Department of Radiation Oncology, Icahn School of Medicine at Mount Sinai, NY, USA
| | - Miao Yue
- CGG Services (Singapore) Pte. Ltd., Singapore
| | - Liping Zhang
- Department of Imaging and Interventional Radiology, Chinese University of Hong Kong, Hong Kong, China
| | - Jorge Cardoso
- School of Biomedical Engineering & Imaging Sciences, King's College London, London, UK
| | - Spyridon Bakas
- Center for Biomedical Image Computing and Analytics (CBICA), University of Pennsylvania, PA, USA; Department of Radiology, Perelman School of Medicine, University of Pennsylvania, USA; Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, PA, USA
| | - Rickmer Braren
- German Cancer Consortium (DKTK), Germany; Institute for diagnostic and interventional radiology, Klinikum rechts der Isar, Technical University of Munich, Germany; Comprehensive Cancer Center Munich, Munich, Germany
| | - Volker Heinemann
- Department of Hematology/Oncology & Comprehensive Cancer Center Munich, LMU Klinikum Munich, Germany
| | | | - An Tang
- Department of Radiology, Radiation Oncology and Nuclear Medicine, University of Montréal, Canada
| | | | - Luc Soler
- Department of Surgical Data Science, Institut de Recherche contre les Cancers de l'Appareil Digestif (IRCAD), France
| | - Bram van Ginneken
- Department of Medical Imaging, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Hayit Greenspan
- Department of Biomedical Engineering, Tel-Aviv University, Israel
| | - Leo Joskowicz
- School of Computer Science and Engineering, the Hebrew University of Jerusalem, Israel
| | - Bjoern Menze
- Department of Informatics, Technical University of Munich, Germany; Department of Quantitative Biomedicine, University of Zurich, Switzerland
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Song Q, Bi L, Jiao J, Shang J, Li Q, Shabuerjiang L, Bai M, Liu X. Zhachong Shisanwei Pill resists ischemic stroke by lysosome pathway based on proteomics and bioinformatics. J Ethnopharmacol 2023; 301:115766. [PMID: 36183948 DOI: 10.1016/j.jep.2022.115766] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 09/05/2022] [Accepted: 09/25/2022] [Indexed: 05/05/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Zhachong Shisanwei Pill (ZSP) is a commonly used Mongolian medicine in treating cerebrovascular diseases and plays a role in the clinical treatment of ischemic stroke (IS). AIM OF THE STUDY Based on determining the protective effect of ZSP on cerebral ischemia, they adopted the proteomics method to explore the mechanism of ZSP against IS. MATERIALS AND METHODS Rats with middle cerebral artery occlusion (MCAO) model were prepared by wire embolization method, and divided into sham group, model group, ZSP high-dose group, medium-dose group, low-dose group and positive drug group. We collected the brain tissue of rats for 12 h after modeling. Neurological deficit score and cerebral infarction volume ratio evaluated pharmacodynamics, and we selected the optimal dose for subsequent experiments. Proteomics was used to screen out possible ZSP anti-IS mediated pathways and differentially expression proteins. Network pharmacology was used to verify the correlation between diseases and drugs. Hematoxylin-eosin (HE) staining and transmission electron microscope (TEM) were used to explore further the pharmacodynamic effect of ZSP against IS and its possible mechanism. RESULTS The cerebral infarction rate and neurological function score in rats showed that the medium-dose ZSP group had the best efficacy. Proteomics results showed that the anti-IS action of ZSP was mainly through lysosome pathway. LAMP2, AP3M1, and SCARB2 were the differentially changed proteins in this pathway. Network pharmacology verified this. HE staining and TEM results showed that ZSP could improve the pathological state of neurons in MCAO rats and reduce the number of lysosomes in MCAO rats. Western blot (WB) results showed that compared with the model group, the protein expression levels of LAMP2 and AP3M1 in the ZSP group were significantly down-regulated, and the protein expression levels of SCARB2 were significantly up-regulated. CONCLUSION This study confirms that ZSP regulates the lysosomal pathway, which may protect IS by down-regulating LAMP2 and AP3M1 and up-regulating SCARB2.
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Affiliation(s)
- Qi Song
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, 100029, Beijing, China.
| | - Lei Bi
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, 100029, Beijing, China.
| | - Jiakang Jiao
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, 100029, Beijing, China.
| | - Jinfeng Shang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, 100029, Beijing, China.
| | - Qiannan Li
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, 100029, Beijing, China.
| | - Lizha Shabuerjiang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, 100029, Beijing, China.
| | - Meirong Bai
- Key Laboratory of Mongolian Medicine Research and Development Engineering, Ministry of Education, Inner Mongolia Minzu University, 028000, Tongliao, China.
| | - Xin Liu
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, 100029, Beijing, China.
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Qu M, Zheng Y, Bi L, Yang X, Shang P, Zhou X, Zeng B, Shen B, Li W, Fan Y, Zeng B. Comparative transcriptomic analysis of the gene expression and underlying molecular mechanism of submergence stress response in orchardgrass roots. Front Plant Sci 2023; 13:1104755. [PMID: 36704155 PMCID: PMC9871833 DOI: 10.3389/fpls.2022.1104755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Accepted: 12/20/2022] [Indexed: 06/18/2023]
Abstract
INTRODUCTION Submergence stress creates a hypoxic environment. Roots are the first plant organ to face these low-oxygen conditions, which causes damage and affects the plant growth and yield. Orchardgrass (Dactylis glomerata L.) is one of the most important cold-season forage grasses globally. However, their submergence stress-induced gene expression and the underlying molecular mechanisms of orchardgrass roots are still unknown. METHODS Using the submergence-tolerant 'Dianbei' and submergence-sensitive 'Anba', the transcriptomic analysis of orchardgrass roots at different time points of submergence stress (0 h, 8 h, and 24 h) was performed. RESULTS We obtained 118.82Gb clean data by RNA-Seq. As compared with the control, a total of 6663 and 9857 differentially expressed genes (DEGs) were detected in Dianbei, while 7894 and 11215 DEGs were detected in Anba at 8 h and 24 h post-submergence-stress, respectively. Gene Ontology (GO) enrichment analysis obtained 986 terms, while Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analysis obtained 123 pathways. Among them, the DEGs in plant hormones, mitogen-activated protein kinase (MAPK) and Ca2+ signal transduction were significantly differentially expressed in Dianbei, but not in Anba. DISCUSSION This study was the first to molecularly elucidate the submergence stress tolerance in the roots of two orchardgrass cultivars. These findings not only enhanced our understanding of the orchardgrass submergence tolerance, but also provided a theoretical basis 36 for the cultivation of submergence-tolerant forage varieties.
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Affiliation(s)
- Minghao Qu
- College of Animal Science and Technology, Southwest University, Chongqing, China
| | - Yuqian Zheng
- College of Animal Science and Technology, Southwest University, Chongqing, China
| | - Lei Bi
- College of Animal Science and Technology, Southwest University, Chongqing, China
| | - Xingyun Yang
- College of Animal Science and Technology, Southwest University, Chongqing, China
| | - Panpan Shang
- College of Animal Science and Technology, Southwest University, Chongqing, China
| | - Xiaoli Zhou
- College of Animal Science and Technology, Southwest University, Chongqing, China
| | - Bing Zeng
- College of Animal Science and Technology, Southwest University, Chongqing, China
| | - Bingna Shen
- College of Animal Science and Technology, Southwest University, Chongqing, China
| | - Wenwen Li
- College of Animal Science and Technology, Southwest University, Chongqing, China
| | - Yan Fan
- Institute of Prataculture, Chongqing Academy of Animal Science, Chongqing, China
| | - Bing Zeng
- College of Animal Science and Technology, Southwest University, Chongqing, China
- Chongqing University Herbivore Engineering Research Center, Chongqing, China
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Wang Y, Gao T, Meng C, Li S, Bi L, Geng Y, Zhang P. Sodium-glucose co-transporter 2 inhibitors in heart failure with mildly reduced or preserved ejection fraction: an updated systematic review and meta-analysis. Eur J Med Res 2022; 27:314. [PMID: 36581880 PMCID: PMC9798580 DOI: 10.1186/s40001-022-00945-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Accepted: 12/11/2022] [Indexed: 12/30/2022] Open
Abstract
OBJECTIVES Heart failure with mildly reduced ejection fraction (HFmrEF) or heart failure with preserved ejection fraction (HFpEF) are associated with significant morbidity and mortality, as well as growing health and economic burden. Sodium-glucose co-transporter 2 (SGLT2) inhibitors are very promising for the outcome improvement of patients with HFpEF or HFmrEF. The meta-analysis was performed to investigate the effects of SGLT2 inhibitors in HFpEF or HFmrEF, by pooling data from all clinically randomized controlled trials (RCTs) available to increase power to testify. METHODS Studies were searched in electronic databases from inception to November, 2022. We performed a meta-analysis to estimate the effect of SGLT2 inhibitors on clinical endpoints in patients with HFpEF or HFmrEF, using trial-level data with consistent endpoint definitions. The primary outcome was the composite of heart failure (HF) hospitalization or cardiovascular death. Hazard ratio (HR) was pooled with 95% confidence interval (CI) for dichotomous data. This study was registered with INPLASY 2022110095. RESULTS Six studies involving 15,989 participants were included into the final analysis. Pooled analyses revealed that SGLT2 inhibitors significantly reduced the composite of HF hospitalization or cardiovascular death [HR: 0.79 (0.72-0.85); I2 = 0%; P < 0.00001] and HF hospitalizations [HR: 0.74 (0.67-0.82); I2 = 0%; P < 0.00001]. This finding was seen in both HFmrEF trials [HR: 0.76 (0.67-0.87); I2 = 49%; P < 0.0001] and HFpEF subgroup studies [HR: 0.70 (0.53-0.93); I2 = 0%; P = 0.01]. The incidence of any serious adverse events [OR: 0.89 (0.83-0.96); I2 = 0%; P = 0.002] was significantly lower in the SGLT2 inhibitor arm. No significant differences were observed between the two groups with regard to cardiovascular death and all-cause death. CONCLUSIONS This meta-analysis of patients with heart failure of left ventricular ejection fraction (LVEF) > 40% showed that SGLT2 inhibitors significantly reduce the risk of the composite of cardiovascular death and hospitalization for heart failure, but not cardiovascular death and all-cause death. Nevertheless, given that SGLT2 inhibitors may reduce the risk of hospitalization for heart failure, they should be considered the fundamental treatment for all patients with HFpEF or HFmrEF.
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Affiliation(s)
- Yintang Wang
- grid.12527.330000 0001 0662 3178Department of Cardiology, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, NO. 168 Litang Road, Changping District, Beijing, 102218 People’s Republic of China
| | - Tong Gao
- grid.12527.330000 0001 0662 3178Department of Cardiology, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, NO. 168 Litang Road, Changping District, Beijing, 102218 People’s Republic of China
| | - Chang Meng
- grid.414252.40000 0004 1761 8894Department of Emergency, Emergency General Hospital, Beijing, People’s Republic of China
| | - Siyuan Li
- grid.12527.330000 0001 0662 3178Department of Cardiology, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, NO. 168 Litang Road, Changping District, Beijing, 102218 People’s Republic of China
| | - Lei Bi
- grid.12527.330000 0001 0662 3178Department of Cardiology, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, NO. 168 Litang Road, Changping District, Beijing, 102218 People’s Republic of China
| | - Yu Geng
- grid.12527.330000 0001 0662 3178Department of Cardiology, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, NO. 168 Litang Road, Changping District, Beijing, 102218 People’s Republic of China
| | - Ping Zhang
- grid.12527.330000 0001 0662 3178Department of Cardiology, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, NO. 168 Litang Road, Changping District, Beijing, 102218 People’s Republic of China
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Guo T, Bi L, Shen L, Wei Q, Zhu C, Zhang P, Zhao Y. Selective oxidative β-C-H bond sulfenylation of tetrahydroisoquinolines with elemental sulfur. Org Biomol Chem 2022; 21:127-131. [PMID: 36484417 DOI: 10.1039/d2ob01976k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
In this article, a convenient and efficient KIO3-promoted oxidative sulfenylation at the β-position of tetrahydroisoquinolines and subsequent aromatization in the presence of elemental S8 is presented. The reaction proceeds with moderate to good yields via a double C-S formation process. A wide range of structurally diverse 4-sulfenylisoquinolines/3-sulfenylpiperidine were synthesized with excellent functional group tolerance and high efficiency.
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Affiliation(s)
- Tao Guo
- School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou, Henan 450001, P. R. China.
| | - Lei Bi
- School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou, Henan 450001, P. R. China.
| | - Lu Shen
- School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou, Henan 450001, P. R. China.
| | - Quanhong Wei
- School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou, Henan 450001, P. R. China.
| | - Congjun Zhu
- School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou, Henan 450001, P. R. China.
| | - Panke Zhang
- Green Catalysis Center, College of Chemistry, Henan Advanced Institute of Technology, Zhengzhou University, Zhengzhou 450001, PR China.
| | - Yunhui Zhao
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, P. R. China.
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Ma D, Chen L, Fan F, Wang Q, Duan G, Bi L, Mei L, Bi K, Chen Y, Duan H. Solar Light Management Enabled by Dual-Responsive Smart Window. ACS Appl Mater Interfaces 2022; 14:56065-56073. [PMID: 36508176 DOI: 10.1021/acsami.2c15767] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Smart windows with tunable optical properties for energy-saving and privacy protection applications are receiving increasing attention. However, current studies of smart windows either involve the use of complex material preparation processes and complex device systems for window switching or continue to face several challenges, including low luminous transmittance, low luminous and solar modulation, and narrow wavelength range management problems. Here, we report a dual-responsive smart window that achieves solar light management in the range of 200-2500 nm. This smart window is fabricated by combining a reversible thermoresponsive hydrogel that acts as a thermochromic material with a ZnO/Ag/ZnO multilayer film that acts as a transparent heater. The as-prepared smart window can modulate solar light over a range from ultraviolet to infrared and achieves active responses to high-temperature weather, with passive responses being produced through electrical heating. The smart window shows high luminous transmittance (81.7%) and high luminous modulation (81.6%), together with an outstanding solar modulation performance (62.9%). In outdoor demonstrations, the as-prepared smart window exhibited a promising temperature regulation ability under strong solar irradiation. Therefore, the proposed smart window promises to provide a simple and effective energy management technology for buildings.
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Affiliation(s)
- Dongxu Ma
- College of Mechanical and Vehicle Engineering, National Engineering Research Center for High-Efficiency Grinding, Hunan University, Changsha410082, China
| | - Lei Chen
- College of Mechanical and Vehicle Engineering, National Engineering Research Center for High-Efficiency Grinding, Hunan University, Changsha410082, China
| | - Fu Fan
- College of Mechanical and Vehicle Engineering, National Engineering Research Center for High-Efficiency Grinding, Hunan University, Changsha410082, China
| | - Qingyu Wang
- College of Mechanical and Vehicle Engineering, National Engineering Research Center for High-Efficiency Grinding, Hunan University, Changsha410082, China
| | - Guihui Duan
- College of Mechanical and Vehicle Engineering, National Engineering Research Center for High-Efficiency Grinding, Hunan University, Changsha410082, China
| | - Lei Bi
- National Engineering Research Center of Electromagnetic Radiation Control Materials, State Key Laboratory of Electronic Thin-Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu610054, China
| | - Linyu Mei
- School of Mechanical Engineering, North University of China, Taiyuan030051, China
| | - Kaixi Bi
- School of Instrument and Electronics, North University of China, Taiyuan030051, China
| | - Yiqin Chen
- College of Mechanical and Vehicle Engineering, National Engineering Research Center for High-Efficiency Grinding, Hunan University, Changsha410082, China
| | - Huigao Duan
- College of Mechanical and Vehicle Engineering, National Engineering Research Center for High-Efficiency Grinding, Hunan University, Changsha410082, China
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Guo T, Bi L, Zhang M, Zhu CJ, Yuan LB, Zhao YH. Access to Sulfur-Containing Bisheterocycles through Base-Promoted Consecutive Tandem Cyclization/Sulfenylation with Elemental Sulfur. J Org Chem 2022; 87:16907-16912. [PMID: 36417664 DOI: 10.1021/acs.joc.2c02248] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
A convenient and efficient tandem cyclization/sulfenylation of o-alkynyl-phenols/-anilines/enaminones for the synthesis of diverse sulfur-containing bisheterocycles has been developed using stable, odorless, and easy-to-handle elemental S8 as a building block under green chemistry conditions. Notably, a one-step simple base-mediated organic transformation affords a benzofuran (indole or chromone) ring and two C-S bonds. Attractive features of this methodology include the absence of a metal catalyst, mild conditions, good functional group tolerance, and valuable product structures.
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Affiliation(s)
- Tao Guo
- School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou, Henan 450001, P. R. China
| | - Lei Bi
- School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou, Henan 450001, P. R. China
| | - Miao Zhang
- Department of Pharmacy, Children's Hospital Affiliated to Zhengzhou University, Zhengzhou, Henan 450001, P. R. China
| | - Cong-Jun Zhu
- School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou, Henan 450001, P. R. China
| | - Li-Bo Yuan
- School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou, Henan 450001, P. R. China
| | - Yun-Hui Zhao
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, P. R. China
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Huang G, Qiu Y, Bi L, Wei H, Li G, Li Z, Ye P, Yang M, Shen Y, Liu H, Wang L, Jin H. PET Imaging of P2X7 Receptor (P2X7R) for Neuroinflammation with Improved Radiosynthesis of Tracer [18F]4A in Mice and Non-human Primates. ACS Chem Neurosci 2022; 13:3464-3476. [PMID: 36441909 DOI: 10.1021/acschemneuro.2c00506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
The P2X7 receptor (P2X7R) is a key neuroinflammation target in a variety of neurodegenerative diseases. Improved radiosynthesis was developed according to the previously reported P2X7R antagonist GSK1482160. Biodistribution, radiometabolite, and dynamic positron emission tomography/computed tomography-magnetic resonance imaging (PET/CT-MRI) of the lipopolysaccharide (LPS) rat model and the transgenic mouse model of Alzheimer's disease (AD) revealed a stable, low uptake of [18F]4A in the brain of healthy rats but a higher standardized uptake value ratio (SUVR) in LPS-treated rats (1.316 ± 0.062, n = 3) than in sham (1.093 ± 0.029, n = 3). There were higher area under curves (AUCs) in the neocortex (25.12 ± 1.11 vs 18.94 ± 1.47), hippocampus (22.50 ± 3.41 vs 15.90 ± 1.59), and basal ganglia (22.26 ± 0.81 vs 15.32 ± 1.76) of AD mice (n = 3) than the controls (n = 3) (p < 0.05). Furthermore, 50 min dynamic PET in healthy nonhuman primates (NHPs) indicated [18F]4A could penetrate the blood-brain barrier (BBB). In conclusion, [18F]4A from this study is a potent P2X7R PET tracer that warrants further neuroinflammation quantification in human studies.
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Affiliation(s)
- Guolong Huang
- Guangdong Provincial Key Laboratory of Biomedical Imaging, Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai519000, Guangdong, China
| | - Yifan Qiu
- Guangdong Provincial Key Laboratory of Biomedical Imaging, Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai519000, Guangdong, China
| | - Lei Bi
- Guangdong Provincial Key Laboratory of Biomedical Imaging, Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai519000, Guangdong, China
| | - Huiyi Wei
- Center of Cyclotron and PET Radiopharmaceuticals, Department of Nuclear Medicine and PET/CT-MRI Center, The First Affiliated Hospital of Jinan University, Guangzhou510630, China
| | - Guocong Li
- Center of Cyclotron and PET Radiopharmaceuticals, Department of Nuclear Medicine and PET/CT-MRI Center, The First Affiliated Hospital of Jinan University, Guangzhou510630, China
| | - Zhijun Li
- Guangdong Provincial Key Laboratory of Biomedical Imaging, Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai519000, Guangdong, China
| | - Peizhen Ye
- Guangdong Provincial Key Laboratory of Biomedical Imaging, Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai519000, Guangdong, China
| | - Min Yang
- Guangdong Provincial Key Laboratory of Biomedical Imaging, Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai519000, Guangdong, China
| | - Yanfang Shen
- Guangdong Provincial Key Laboratory of Biomedical Imaging, Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai519000, Guangdong, China
| | - Hao Liu
- Guangdong Provincial Key Laboratory of Biomedical Imaging, Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai519000, Guangdong, China
| | - Lu Wang
- Center of Cyclotron and PET Radiopharmaceuticals, Department of Nuclear Medicine and PET/CT-MRI Center, The First Affiliated Hospital of Jinan University, Guangzhou510630, China
| | - Hongjun Jin
- Guangdong Provincial Key Laboratory of Biomedical Imaging, Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai519000, Guangdong, China
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Fan Q, Lu Q, Wang G, Zhu W, Teng L, Chen W, Bi L. Optimizing component formula suppresses lung cancer by blocking DTL-mediated PDCD4 ubiquitination to regulate the MAPK/JNK pathway. J Ethnopharmacol 2022; 299:115546. [PMID: 35850313 DOI: 10.1016/j.jep.2022.115546] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 07/02/2022] [Accepted: 07/11/2022] [Indexed: 06/15/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Salvia miltiorrhiza Bunge and Panax ginseng C. A. Meyer have special curative effect on cancer treatment. The optimizing component formula (OCF) extracted from those two herbs was in line with the anti-lung cancer treatment principle of activating blood and supplementing 'Qi'. However, the study on the mechanism of component formula has always been an insurmountable challenge. Nowadays, the application of network pharmacology and artificial intelligence (AI) in the field of TCM provides new ideas for the study of new targets and mechanisms of TCM, which promotes the modernization of TCM. AIM OF THE STUDY This study aims to further explore the anti-lung cancer mechanism of OCF by using an integrated strategy of network pharmacology and AI technology. MATERIALS AND METHODS Bioinformatic analysis was used to analyze the expression levels, prognosis and survival of DTL and PDCD4 in cancer patients. The binding strength of OCF and DTL was simulated by molecular docking, and the affinity between them was detected by Bio-layer interferometry. Network pharmacology was used to predict the active components, potential targets and pathways of OCF. The association between key targets and their corresponding components and DTL was analyzed by Ingenuity Pathway Analysis (IPA). MTT assay, colony formation assay, wound-healing assay and transwell assay were used to verify the inhibitory effects of OCF on lung cancer cells in vitro. qRT-PCR and Western blot assay were used to detect the effects of OCF on mRNA and protein expression of DTL, PDCD4 and key genes in MAPK/JNK pathways. RESULTS Bioinformatics analysis showed that DTL was significantly up-regulated in lung cancer, which was associated with high malignancy rate, high metastasis rate and poor prognosis of primary tumor. PDCD4 was down-regulated in lung cancer, and associated with high metastasis rate and poor prognosis. The good affinity between OCF and DTL was predicted and verified by molecular docking and Bio-layer interferometry. Based on the network pharmacological databases, 40 active components and 220 corresponding targets of OCF were screened out. KEGG analysis showed that OCF component targets were mainly enriched in MAPK signaling pathway. IPA results showed the interrelationship between DTL, PDCD4, MAPK pathway genes and their corresponding OCF components. In addition, in vitro experiments demonstrated anti-lung cancer activity of OCF, as validated, via impairing cell viability and cell proliferation, as well as inhibiting migration and invasion abilities in lung cancer cells. qRT-PCR showed that OCF down-regulated the mRNA expression of DTL, MAP4K1, JNK, c-Jun and c-Myc, and up-regulated the mRNA expression of PDCD4 and P53 genes in A549 lung cancer cells. Western blot suggested that OCF suppressed the protein level of DTL and blocked the ubiquitination of PDCD4 in A549 lung cancer cells, and down-regulated the protein levels of MAP4K1, p-JNK and p-c-Jun while up-regulated the proteins expression level of P53. CONCLUSIONS OCF might elicit an anti-lung cancer effect by blocking DTL-mediated PDCD4 ubiquitination and suppression of the MAPK/JNK pathway. Meanwhile, our work revealed that network pharmacology and AI technology strategy are cogent means of studying the active components and mechanism of TCM.
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Affiliation(s)
- Qianqian Fan
- School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Qinwei Lu
- School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Guiyang Wang
- School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Wenjing Zhu
- School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Linxin Teng
- School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Weiping Chen
- School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Lei Bi
- School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, China.
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Teng L, Li Z, Shi Y, Gao Z, Yang Y, Wang Y, Bi L. Development and validation of a microenvironment-related prognostic model for hepatocellular carcinoma patients based on histone deacetylase family. Transl Oncol 2022; 26:101547. [PMID: 36191460 PMCID: PMC9531286 DOI: 10.1016/j.tranon.2022.101547] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Revised: 05/25/2022] [Accepted: 09/26/2022] [Indexed: 01/23/2023] Open
Abstract
BACKGROUND Histone deacetylase (HDAC) family can remove acetyl groups from histone lysine residues, and their high expression is closely related to the poor prognosis of hepatocellular carcinoma (HCC) patients. Recently, it has been reported to play an immunosuppressive role in the microenvironment, but little is known about the mechanism. METHODS Through machine learning, we trained and verified the prognostic model composed of HDACs. CIBERSORT was used to calculate the percentage of immune cells in the microenvironment. Based on co-expression network, potential targets of HDACs were screened. After that, qRT-PCR was employed to evaluate the expression of downstream genes of HDACs, while HPLC-CAD analysis was applied to detect the concentration of arachidonic acid (AA). Finally, Flow cytometry, WB and IHC experiments were used to detect CD86 expression in RAW246.7. RESULTS We constructed a great prognostic model composed of HDAC1 and HDAC11 that was significantly associated with overall survival. These HDACs were related to the abundance of macrophages, which might be attributed to their regulation of fatty-acid-metabolism related genes. In vitro experiments, the mRNA expression of ACSM2A, ADH1B, CYP2C8, CYP4F2 and SLC27A5 in HCC-LM3 was significantly down-regulated, and specific inhibitors of HDAC1 and HDAC11 significantly promoted the expression of these genes. HDAC inhibitors can promote the metabolism of AA, which may relieve the effect of AA on the polarization of M1 macrophages. CONCLUSIONS Our study revealed the blocking effect of HDAC1 and HDAC11 on the polarization of macrophages M1 in the microenvironment by inhibiting fatty acid metabolism.
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Affiliation(s)
- Linxin Teng
- School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, 138 Xianlin Road, Nanjing, Jiangsu 210023, China; Jiangsu Provincial Engineering Research Center of TCM External Medication Development and Application, Nanjing 210023, China
| | - Zhengjun Li
- College of Health Economics Management, Nanjing University of Chinese Medicine, 138 Xianlin Road, Nanjing, Jiangsu 210023, China; Jiangsu Provincial Engineering Research Center of TCM External Medication Development and Application, Nanjing 210023, China
| | - Yipeng Shi
- School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, 138 Xianlin Road, Nanjing, Jiangsu 210023, China
| | - Zihan Gao
- School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, 138 Xianlin Road, Nanjing, Jiangsu 210023, China
| | - Yang Yang
- School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, 138 Xianlin Road, Nanjing, Jiangsu 210023, China
| | - Yunshan Wang
- Department of Clinical Laboratory, The Second Hospital, Cheeloo College of Medicine, Shandong University, 247 Beiyuan Street, Jinan, Shandong 250033, China
| | - Lei Bi
- School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, 138 Xianlin Road, Nanjing, Jiangsu 210023, China; Jiangsu Provincial Engineering Research Center of TCM External Medication Development and Application, Nanjing 210023, China.
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Xu D, Yang F, Chen J, Zhu T, Wang F, Xiao Y, Liang Z, Bi L, Huang G, Jiang Z, Shan H, Li D. Novel STING-targeted PET radiotracer for alert and therapeutic evaluation of acute lung injury. Acta Pharm Sin B 2022; 13:2124-2137. [DOI: 10.1016/j.apsb.2022.12.017] [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] [Received: 09/20/2022] [Revised: 12/11/2022] [Accepted: 12/15/2022] [Indexed: 12/29/2022] Open
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Huang P, Li Z, Peng T, Yang J, Bi L, Huang G, Qiu Y, Yang M, Ye P, Huang M, Jin H, Sun L. Evaluation of [ 18F]F-TZ3108 for PET Imaging of Metabolic-Associated Fatty Liver Disease. Mol Imaging Biol 2022; 24:909-919. [PMID: 35705779 DOI: 10.1007/s11307-022-01740-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 04/20/2022] [Accepted: 05/06/2022] [Indexed: 12/29/2022]
Abstract
PURPOSE Sigma-1 receptor (Sig-1R), a chaperone that resides at the mitochondrion-associated endoplasmic reticulum (ER) membrane, is an ER stress biomarker. It is thought that ER stress plays a critical role in the progression of metabolic-associated fatty liver disease (MAFLD). The aim of this study was to evaluate a positron emission tomography (PET) tracer [18F]F-TZ3108 targeting Sig-1R for MAFLD. PROCEDURES The mouse model of MAFLD was established by feeding high-fat diet (HFD) for 12 weeks. Dynamic (0-60 min) PET/CT scans were performed after intravenous injection of 2-deoxy-2[18F]fluoro-D-glucose ([18F]-FDG) and [18F]F-TZ3108. Tracer kinetic modeling was performed for quantification of the PET/CT imaging of the liver. Post-PET biodistribution, the liver tissue western blotting (WB), and immunofluorescence (IF) were performed to compare the expression of Sig-1R levels in the organs harvested from both MAFLD and age-matched control mice. RESULTS The micro PET/CT imaging revealed a significantly decreased uptake of [18F]F-TZ3108 in the livers of the MAFLD group compared to the healthy controls, while the uptake of [18F]-FDG in the livers was not significantly different between the two groups. Based on the tracer kinetic modeling, the binding disassociate rate (k4) for [18F]F-TZ3108 was significantly increased in MAFLD group compared to healthy controls. The volume distribution (VT), and the non-displacement binding potential (BPND) revealed significantly decrease in MAFLD compared to healthy controls respectively. The post-PET biodistribution (%ID/g) of [18F]F-TZ3108 in the livers of MAFLD mice was significantly reduced nearly twofold than that in the livers of control mice. WB and IF experiments further confirmed the reduction of Sig-1R expression in the MAFLD group. CONCLUSIONS The expression of Sig-1R in the liver, measured by the PET tracer, [18F]F-TZ3108, was significantly decreased in mouse model of MAFLD. The [18F]F-TZ3108 PET/CT imaging may provide a novel means of visualization for ER stress in MAFLD or other diseases in vivo.
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Affiliation(s)
- Peiyi Huang
- Department of Endocrinology, The Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, Guangdong Province, China.,Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, Guangdong Province, China
| | - Zhijun Li
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, Guangdong Province, China
| | - Tukang Peng
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, Guangdong Province, China
| | - Jihua Yang
- Department of Endocrinology, The Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, Guangdong Province, China
| | - Lei Bi
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, Guangdong Province, China
| | - Guolong Huang
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, Guangdong Province, China
| | - Yifan Qiu
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, Guangdong Province, China
| | - Min Yang
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, Guangdong Province, China
| | - Peizhen Ye
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, Guangdong Province, China
| | - Mingxing Huang
- Department of Infectious Diseases, The Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, Guangdong Province, China
| | - Hongjun Jin
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, Guangdong Province, China.
| | - Liao Sun
- Department of Endocrinology, The Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, Guangdong Province, China.
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