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Dong H, Liao L, Long B, Che Y, Peng T, He Y, Mei L, Xu B. Total Synthesis and Antibacterial Evaluation of Lupinifolin and Its Natural Analogues. J Nat Prod 2024. [PMID: 38373268 DOI: 10.1021/acs.jnatprod.4c00008] [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: 02/21/2024]
Abstract
In this study, lupinifolin (1) and its natural analogues, mundulin (2), minimiorin (3), khonklonginol H (4), flemichin D (5), and eriosemaone A (27), were obtained by chemical synthesis for the first time. Key steps involved an electrocyclization to build the linear pyran rings and a Claisen/Cope rearrangement to install the 8-prenyl substituents. All compounds were assessed for their in vitro antimicrobial activities against clinically relevant human pathogens, including one Gram-negative bacterial strain (E. coli ATCC 25922) and four Gram-positive bacterial strains (S. aureus ATCC 29213, E. faecalis ATCC 29212, MRSA21-5, and VRE ATCC 51299). The result indicated that eriosemaone A (27) was the most potent one against Gram-positive bacteria, with minimum inhibitory concentrations in the range of 0.25-0.5 μg/mL. Mechanistic studies indicated that 27 has good membrane-targeting ability to bacterial inner membranes and can bind to phosphatidylglycerol and cardiolipin in bacterial membranes, thereby disrupting the bacterial cell membranes and causing bacterial death.
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Affiliation(s)
- Hongbo Dong
- Engineering Research Center for Pharmaceuticals and Equipment of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu 610106, People's Republic of China
- Anti-infective Agent Creation Engineering Research Centre of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu 610106, People's Republic of China
| | - Li Liao
- Anti-infective Agent Creation Engineering Research Centre of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu 610106, People's Republic of China
| | - Bin Long
- Engineering Research Center for Pharmaceuticals and Equipment of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu 610106, People's Republic of China
| | - Yufei Che
- Engineering Research Center for Pharmaceuticals and Equipment of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu 610106, People's Republic of China
| | - Ting Peng
- Anti-infective Agent Creation Engineering Research Centre of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu 610106, People's Republic of China
| | - Yujiao He
- Anti-infective Agent Creation Engineering Research Centre of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu 610106, People's Republic of China
| | - Ling Mei
- Engineering Research Center for Pharmaceuticals and Equipment of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu 610106, People's Republic of China
| | - Bing Xu
- Department of Pediatric Surgery, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu 610072, People's Republic of China
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Liang N, Fu X, Zhang J, Ruan Z, Qin B, Ma T, Long B. Evaluation of Wetting Behaviors of Liquid Sodium on Transition Metals: An Experimental and Molecular Dynamics Simulation Study. Materials (Basel) 2024; 17:691. [PMID: 38591564 PMCID: PMC10856150 DOI: 10.3390/ma17030691] [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: 01/08/2024] [Revised: 01/24/2024] [Accepted: 01/24/2024] [Indexed: 04/10/2024]
Abstract
In sodium-cooled fast reactors, the wettability of sodium with materials is closely related to sodium-related operations and the detection accuracy of instruments and meters, so how to achieve the selection of materials with different wettability requirements is a key problem in engineering design. To meet these requirements, the wetting behaviors of liquid sodium with nine transition metals were investigated using scanning electron microscopy (SEM), X-ray diffraction (XRD), and molecular dynamics (MD) simulations. The results show that metals such as zinc and gold, which react with sodium to form intermetallic compounds at the interface, exhibit superior wettability. Followed by the metals that have strong interatomic interactions even though they do not react with sodium or dissolve each other, such as cobalt, nickel and copper, while the wettability of these systems tends to be poor at low temperatures. Systems that do not react with each other or have strong interatomic affinities proved to be the most difficult to wet. Notably, metals with the closest-packed crystal structures of fcc and hcp generally have better wettability than those with a bcc structure. They can be a valuable guide for experimental research and technical control.
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Affiliation(s)
- Na Liang
- China Institute of Atomic Energy, Beijing 102413, China (J.Z.); (B.Q.)
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Qin L, Chen W, Ye Y, Yi H, Pang W, Long B, Wang Y, Ye T, Li L. Prediction of HER2 Expression in Gastric Adenocarcinoma Based On Preoperative Noninvasive Multimodal 18F-FDG PET/CT Imaging. Acad Radiol 2024:S1076-6332(24)00022-9. [PMID: 38302386 DOI: 10.1016/j.acra.2024.01.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2023] [Revised: 01/02/2024] [Accepted: 01/11/2024] [Indexed: 02/03/2024]
Abstract
RATIONALE AND OBJECTIVES This study aims to investigate the role of a flourine-18 fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT) multimodal radiomics model in predicting the status of human epidermal growth factor receptor 2 (HER2) expression preoperatively in cases of gastric adenocarcinoma. MATERIALS AND METHODS This retrospective study included 133 patients with gastric adenocarcinoma who were classified into training (n = 93) and validation (n = 40) cohorts in a ratio of 7:3. Features were selected using Least Absolute Shrinkage and Selection Operator and Extreme Gradient Boosting (XGBoost) methods; further, prediction models were constructed using logistic regression and XGBoost. These models were evaluated and validated using area under the curve (AUC), decision curves, and calibration curves to select the best-performing model. RESULTS Six different models were established to predict HER2 expression. Among these, the comprehensive model, which integrates seven clinical features, one CT feature, and five PET features, demonstrated AUC values of 0.95 (95% confidence interval [CI]: 0.89-1.00) and 0.76 (95% CI: 0.52-1.00) in the training and validation cohorts, respectively. Compared with other models, this model exhibited a superior net benefit on the decision curve and demonstrated good alignment agreement with the observed values on the calibration curve. Based on these findings, we constructed a nomogram for visualizing the model, providing a noninvasive preoperative method for predicting HER2 expression. CONCLUSION The preoperative 18F-FDG PET/CT multimodal radiomics model can effectively predict HER2 expression in patients with gastric adenocarcinoma, thereby guiding clinical decision-making and advancing the field of precision medicine.
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Affiliation(s)
- Lilin Qin
- Department of Nuclear Medicine, Zhejiang Cancer Hospital, Banshan Street 1, Hangzhou, Zhejiang 310022, China; Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, Zhejiang, China; Second Clinical Medical College of Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Wujie Chen
- Department of Radiology, Zhejiang Cancer Hospital, Hangzhou, Zhejiang, China; Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, Zhejiang, China
| | - Yuanxin Ye
- Department of Radiology, Zhejiang Cancer Hospital, Hangzhou, Zhejiang, China; Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, Zhejiang, China; Second Clinical Medical College of Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Heqing Yi
- Department of Nuclear Medicine, Zhejiang Cancer Hospital, Banshan Street 1, Hangzhou, Zhejiang 310022, China; Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, Zhejiang, China
| | - Weiqiang Pang
- Department of Nuclear Medicine, Zhejiang Cancer Hospital, Banshan Street 1, Hangzhou, Zhejiang 310022, China; Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, Zhejiang, China
| | - Bin Long
- Department of Nuclear Medicine, Zhejiang Cancer Hospital, Banshan Street 1, Hangzhou, Zhejiang 310022, China; Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, Zhejiang, China
| | - Yun Wang
- Department of Nuclear Medicine, Zhejiang Cancer Hospital, Banshan Street 1, Hangzhou, Zhejiang 310022, China; Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, Zhejiang, China
| | - Ting Ye
- Department of Nuclear Medicine, Zhejiang Cancer Hospital, Banshan Street 1, Hangzhou, Zhejiang 310022, China; Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, Zhejiang, China
| | - Linfa Li
- Department of Nuclear Medicine, Zhejiang Cancer Hospital, Banshan Street 1, Hangzhou, Zhejiang 310022, China; Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, Zhejiang, China.
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Moore LR, Caspi R, Campbell DA, Casey JR, Crevecoeur S, Lea-Smith DJ, Long B, Omar NM, Paley SM, Schmelling NM, Torrado A, Zehr JP, Karp PD. CyanoCyc cyanobacterial web portal. Front Microbiol 2024; 15:1340413. [PMID: 38357349 PMCID: PMC10864581 DOI: 10.3389/fmicb.2024.1340413] [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: 11/17/2023] [Accepted: 01/11/2024] [Indexed: 02/16/2024] Open
Abstract
CyanoCyc is a web portal that integrates an exceptionally rich database collection of information about cyanobacterial genomes with an extensive suite of bioinformatics tools. It was developed to address the needs of the cyanobacterial research and biotechnology communities. The 277 annotated cyanobacterial genomes currently in CyanoCyc are supplemented with computational inferences including predicted metabolic pathways, operons, protein complexes, and orthologs; and with data imported from external databases, such as protein features and Gene Ontology (GO) terms imported from UniProt. Five of the genome databases have undergone manual curation with input from more than a dozen cyanobacteria experts to correct errors and integrate information from more than 1,765 published articles. CyanoCyc has bioinformatics tools that encompass genome, metabolic pathway and regulatory informatics; omics data analysis; and comparative analyses, including visualizations of multiple genomes aligned at orthologous genes, and comparisons of metabolic networks for multiple organisms. CyanoCyc is a high-quality, reliable knowledgebase that accelerates scientists' work by enabling users to quickly find accurate information using its powerful set of search tools, to understand gene function through expert mini-reviews with citations, to acquire information quickly using its interactive visualization tools, and to inform better decision-making for fundamental and applied research.
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Affiliation(s)
| | - Ron Caspi
- SRI International, Menlo Park, CA, United States
| | | | - John R. Casey
- Lawrence Livermore National Laboratory, Physical and Life Sciences Directorate, Livermore, CA, United States
| | - Sophie Crevecoeur
- Watershed Hydrology and Ecology Research Division, Environment and Climate Change Canada, Burlington, ON, Canada
| | - David J. Lea-Smith
- School of Biological Sciences, University of East Anglia, Norwich, United Kingdom
| | - Bin Long
- Department of Plant Pathology and Microbiology, Texas A&M University, College Station, TX, United States
| | | | | | | | - Alejandro Torrado
- Institute of Plant Biochemistry and Photosynthesis, University of Seville and Spanish National Research Council, Sevilla, Spain
| | - Jonathan P. Zehr
- Ocean Sciences Department, University of California, Santa Cruz, Santa Cruz, CA, United States
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Wang D, Zhao M, Tang X, Gao M, Liu W, Xiang M, Ruan J, Chen J, Long B, Li J. Transcriptomic analysis of spinal cord regeneration after injury in Cynops orientalis. Neural Regen Res 2023; 18:2743-2750. [PMID: 37449639 DOI: 10.4103/1673-5374.373717] [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: 07/18/2023] Open
Abstract
Cynops orientalis (C. orientalis) has a pronounced ability to regenerate its spinal cord after injury. Thus, exploring the molecular mechanism of this process could provide new approaches for promoting mammalian spinal cord regeneration. In this study, we established a model of spinal cord thoracic transection injury in C. orientalis, which is an endemic species in China. We performed RNA sequencing of the contused axolotl spinal cord at two early time points after spinal cord injury - during the very acute stage (4 days) and the subacute stage (7 days) - and identified differentially expressed genes; additionally, we performed Gene Ontology and Kyoto Encyclopedia of Genes and Genomes pathway analyses, at each time point. Transcriptome sequencing showed that 13,059 genes were differentially expressed during C. orientalis spinal cord regeneration compared with uninjured animals, among which 4273 were continuously down-regulated and 1564 were continuously up-regulated. Down-regulated genes were most enriched in the Gene Ontology term "multicellular organismal process" and in the ribosome pathway at 10 days following spinal cord injury. We found that multiple genes associated with energy metabolism were down-regulated and multiple genes associated with the lysosome were up-regulated after spinal cord injury, indicating the importance of low metabolic activity during wound healing. Immune response-associated pathways were activated during the early acute phase (4 days), while the expression of extracellular matrix proteins such as glycosaminoglycan and collagen, as well as tight junction proteins, was lower at 10 days post-spinal cord injury than 4 days post-spinal cord injury. However, compared with 4 days post-injury, at 10 days post-injury neuroactive ligand-receptor interactions were no longer down-regulated, up-regulated differentially expressed genes were enriched in pathways associated with cancer and the cell cycle, and SHH, VIM, and Sox2 were prominently up-regulated. Immunofluorescence staining showed that glial fibrillary acidic protein was up-regulated in axolotl ependymoglial cells after injury, similar to what is observed in mammalian astrocytes after spinal cord injury, even though axolotls do not form a glial scar during regeneration. We suggest that low intracellular energy production could slow the rapid amplification of ependymoglial cells, thereby inhibiting reactive gliosis, at early stages after spinal cord injury. Extracellular matrix degradation slows cellular responses, represses the expression of neurogenic genes, and reactivates a transcriptional program similar to that of embryonic neuroepithelial cells. These ependymoglial cells act as neural stem cells: they migrate and proliferate to repair the lesion and then differentiate to replace lost glial cells and neurons. This provides the regenerative microenvironment that allows axon growth after injury.
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Affiliation(s)
- Di Wang
- College of Life Sciences, Anhui Normal University, Wuhu, Anhui Province, China
| | - Man Zhao
- College of Life Sciences, Anhui Normal University, Wuhu, Anhui Province, China
| | - Xiao Tang
- College of Life Sciences, Anhui Normal University, Wuhu, Anhui Province, China
| | - Man Gao
- College of Life Sciences, Anhui Normal University, Wuhu, Anhui Province, China
| | - Wenjing Liu
- College of Life Sciences, Anhui Normal University, Wuhu, Anhui Province, China
| | - Minghui Xiang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu Province, China
| | - Jian Ruan
- College of Life Sciences, Anhui Normal University, Wuhu, Anhui Province, China
| | - Jie Chen
- Laboratory of Reproductive Medicine, The Second People's Hospital, Wuhu, Wuhu, Anhui Province, China
| | - Bin Long
- College of Life Sciences, Anhui Normal University, Wuhu, Anhui Province, China
| | - Jun Li
- College of Life Sciences, Anhui Normal University, Wuhu, Anhui Province, China
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Wang P, Yang B, Huang H, Liang P, Long B, Chen L, Yang L, Tang L, Huang L, Liang H. HIV gp120/Tat protein-induced epithelial-mesenchymal transition promotes the progression of cervical lesions. AIDS Res Ther 2023; 20:82. [PMID: 37981694 PMCID: PMC10657494 DOI: 10.1186/s12981-023-00577-1] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Accepted: 10/25/2023] [Indexed: 11/21/2023] Open
Abstract
BACKGROUND Human immunodeficiency virus (HIV) infection is associated with an elevated incidence of cervical cancer, and accelerated disease progression, but the underlying mechanisms are not well understood. This study aimed to investigate the relationship between HIV infection and epithelial-mesenchymal transition (EMT) in cervical cancer. METHODS Tissue samples from HIV-positive and negative patients with cervical intraepithelial neoplasia (CIN) and cervical cancer were analyzed for EMT-related proteins. Human cervical cancer SiHa cells were treated with HIV Tat and gp120 proteins to test their effects on EMT, migration, and invasion. RESULTS HIV-positive patients had lower E-cadherin and cytokeratin, and higher N-cadherin and vimentin levels than HIV-negative patients. HIV Tat and gp120 proteins induced EMT, migration, and invasion in SiHa cells. Transcriptome sequencing analysis revealed that, compared to the control group, the protein-treated group showed upregulation of 22 genes and downregulation of 77 genes. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analyses revealed the involvement of the Wnt signaling pathway in EMT. Further analysis of gene expression related to this pathway revealed upregulation of DVL1, TCF7, KRT17, and VMAC, while GSK3β, SFRP2, and CDH1 were downregulated. Immunofluorescence assay demonstrated that HIVgp120 and Tat proteins treatment induced elevated β-catenin expression with nuclear accumulation in SiHa cells. CONCLUSIONS The treatment of SiHa cells with HIV Tat and gp120 proteins induces EMT and activates the Wnt/β-catenin pathway, suggesting that the Wnt/β-catenin pathway may play a crucial role in promoting EMT progression in cervical lesion tissues of HIV-infected patients.
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Affiliation(s)
- Peizhi Wang
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
- Department of Gynecology, Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou, 510000, China
| | - Baojun Yang
- Department of Gynecology, Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou, 510000, China
| | - Huang Huang
- Department of Intensive Care Unit, Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou, 510000, China
| | - Peiyi Liang
- Department of Gynecology, Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou, 510000, China
| | - Bin Long
- Department of Gynecology, Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou, 510000, China
| | - Lin Chen
- Department of Gynecology, Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou, 510000, China
| | - Lijie Yang
- Department of Gynecology, Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou, 510000, China
| | - Lianhua Tang
- Department of Gynecology, Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou, 510000, China
| | - Liping Huang
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China.
| | - Huichao Liang
- Department of Gynecology, Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou, 510000, China.
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Dong H, Liao L, Yu P, Long B, Che Y, Lu L, Xu B. Total syntheses and antibacterial evaluations of cudraflavones A-C and related Flavones. Bioorg Chem 2023; 140:106764. [PMID: 37573609 DOI: 10.1016/j.bioorg.2023.106764] [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: 06/04/2023] [Revised: 07/15/2023] [Accepted: 08/02/2023] [Indexed: 08/15/2023]
Abstract
The total syntheses of the natural prenylated flavones cudraflavones A-C (1-3), artoheterophyllin D (28) and artelasticin (29) are reported, along with the evaluations of their antibacterial activities. The key steps of the synthesis involved a Baker-Venkataraman rearrangement and an intramolecular cyclization for the construction of the flavone core and the regioselective formation of the pyran and isopentenyl scaffolds. The tested natural flavones 1-3 and 27-29 exhibited potent activity against S. aureus ATCC 29213, S. epidermidis ATCC 14990, E. faecalis ATCC 29212 and B. subtilis ATCC 6633 with MIC values ranging from 0.125 μg/mL to 16 μg/mL. Compound 3 displayed the strongest potency, with MIC values in the range between 0.125 and 1 μg/mL, as a potential candidate to combat G+ bacterial infections. Preliminary mechanism of action studies suggested that this compound killed bacteria by disrupting bacterial membrane integrity.
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Affiliation(s)
- Hongbo Dong
- Engineering Research Center for Pharmaceuticals and Equipment of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu 610106, PR China; Anti-infective Agent Creation Engineering Research Centre of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu 610106, PR China
| | - Li Liao
- Engineering Research Center for Pharmaceuticals and Equipment of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu 610106, PR China; Anti-infective Agent Creation Engineering Research Centre of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu 610106, PR China
| | - Pei Yu
- Engineering Research Center for Pharmaceuticals and Equipment of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu 610106, PR China
| | - Bin Long
- Engineering Research Center for Pharmaceuticals and Equipment of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu 610106, PR China
| | - Yufei Che
- Engineering Research Center for Pharmaceuticals and Equipment of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu 610106, PR China
| | - Lan Lu
- Anti-infective Agent Creation Engineering Research Centre of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu 610106, PR China
| | - Bing Xu
- Department of Pediatric Surgery, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu 610072, PR China.
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Yu P, Long B, Feng CL, Yang TT, Jiang XL, He YJ, Dong HB. Total syntheses of pongaflavone and its natural analogues. J Asian Nat Prod Res 2023; 25:1085-1096. [PMID: 36951955 DOI: 10.1080/10286020.2023.2193697] [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: 09/17/2022] [Revised: 03/16/2023] [Accepted: 03/16/2023] [Indexed: 06/18/2023]
Abstract
The efficient total synthesis of anti-tumor natural product pongaflavone (1) was described starting from commercially available 2,4-dihydroxyacetophenone (9) via seven steps and in 16% overall yield. Its two natural analogues pongachromene (2) and 7,8-(2",2"-dimethylpyrano)-5,3',4'-trihydroxy-3-methoxyflavone (3) were also synthesized following the similar procedure with the yields of 11% and 18%, respectively. Their preliminary anti-tumor activities were evaluated by the inhibition effect on A549 cells. The result showed that this kind of natural products exhibited different levels of anti-tumor activity. Among them, pongachromene (2) displayed the best anti-tumor activity.
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Affiliation(s)
- Pei Yu
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu 610106, China
| | - Bin Long
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu 610106, China
| | - Chuan-Ling Feng
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu 610106, China
| | - Ting-Ting Yang
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu 610106, China
| | - Xi-Lan Jiang
- Institute of Health Food Inspection and Evaluation, Chengdu Institute of Food Inspection, Chengdu 611130, China
| | - Yu-Jiao He
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu 610106, China
| | - Hong-Bo Dong
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu 610106, China
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Long B, Zhang H, Zhang H, Chen W, Sun Y, Tang R, Lin Y, Fu Q, Yang X, Cui L, Wang K. Deep learning models of ultrasonography significantly improved the differential diagnosis performance for superficial soft-tissue masses: a retrospective multicenter study. BMC Med 2023; 21:405. [PMID: 37880716 PMCID: PMC10601110 DOI: 10.1186/s12916-023-03099-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 09/29/2023] [Indexed: 10/27/2023] Open
Abstract
BACKGROUND Most of superficial soft-tissue masses are benign tumors, and very few are malignant tumors. However, persistent growth, of both benign and malignant tumors, can be painful and even life-threatening. It is necessary to improve the differential diagnosis performance for superficial soft-tissue masses by using deep learning models. This study aimed to propose a new ultrasonic deep learning model (DLM) system for the differential diagnosis of superficial soft-tissue masses. METHODS Between January 2015 and December 2022, data for 1615 patients with superficial soft-tissue masses were retrospectively collected. Two experienced radiologists (radiologists 1 and 2 with 8 and 30 years' experience, respectively) analyzed the ultrasound images of each superficial soft-tissue mass and made a diagnosis of malignant mass or one of the five most common benign masses. After referring to the DLM results, they re-evaluated the diagnoses. The diagnostic performance and concerns of the radiologists were analyzed before and after referring to the results of the DLM results. RESULTS In the validation cohort, DLM-1 was trained to distinguish between benign and malignant masses, with an AUC of 0.992 (95% CI: 0.980, 1.0) and an ACC of 0.987 (95% CI: 0.968, 1.0). DLM-2 was trained to classify the five most common benign masses (lipomyoma, hemangioma, neurinoma, epidermal cyst, and calcifying epithelioma) with AUCs of 0.986, 0.993, 0.944, 0.973, and 0.903, respectively. In addition, under the condition of the DLM-assisted diagnosis, the radiologists greatly improved their accuracy of differential diagnosis between benign and malignant tumors. CONCLUSIONS The proposed DLM system has high clinical application value in the differential diagnosis of superficial soft-tissue masses.
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Affiliation(s)
- Bin Long
- Institute of Medical Technology, Peking University Health Science Center, Beijing, 100191, China
- Department of Diagnostic Ultrasound, Peking University Third Hospital, Beijing, China
| | - Haoyan Zhang
- CAS Key Laboratory of Molecular Imaging, Institute of Automation, Chinese Academy of Sciences, Beijing, China
- School of Artificial Intelligence, University of Chinese Academy of Sciences, Beijing, China
| | - Han Zhang
- Department of Ultrasound, The Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Wen Chen
- Department of Diagnostic Ultrasound, Peking University Third Hospital, Beijing, China
| | - Yang Sun
- Department of Diagnostic Ultrasound, Peking University Third Hospital, Beijing, China
| | - Rui Tang
- Institute of Medical Technology, Peking University Health Science Center, Beijing, 100191, China
- Department of Diagnostic Ultrasound, Peking University Third Hospital, Beijing, China
| | - Yuxuan Lin
- Department of Ultrasound, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Qiang Fu
- Department of Ultrasound, Beijing Civil Aviation General Hospital, Beijing, China
| | - Xin Yang
- CAS Key Laboratory of Molecular Imaging, Institute of Automation, Chinese Academy of Sciences, Beijing, China
- School of Artificial Intelligence, University of Chinese Academy of Sciences, Beijing, China
| | - Ligang Cui
- Institute of Medical Technology, Peking University Health Science Center, Beijing, 100191, China.
- Department of Diagnostic Ultrasound, Peking University Third Hospital, Beijing, China.
| | - Kun Wang
- CAS Key Laboratory of Molecular Imaging, Institute of Automation, Chinese Academy of Sciences, Beijing, China.
- School of Artificial Intelligence, University of Chinese Academy of Sciences, Beijing, China.
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10
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Dong H, Yu P, Long B, Peng T, He Y, Xu B, Liao L, Lu L. Total Synthesis of Kuwanons A and B and Discovery of Their Antibacterial Mechanism. J Nat Prod 2023; 86:2022-2030. [PMID: 37499116 DOI: 10.1021/acs.jnatprod.3c00466] [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] [Subscribe] [Scholar Register] [Indexed: 07/29/2023]
Abstract
Kuwanons A (1) and B (2) are two natural prenylated flavones isolated from the root bark of Morus alba L. In this study, the first total syntheses of kuwanons A (1) and B (2) were achieved from a common intermediate with overall yields of 6.6% and 11.6%, respectively. Kuwanon B (2) exhibited antibacterial activity against Gram-positive bacteria and concentration-dependent bactericidal activity against Staphylococcus aureus bacteria. Preliminary mechanism of action studies suggested that this compound killed bacteria rapidly by disrupting bacterial membrane integrity.
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Affiliation(s)
- Hongbo Dong
- Engineering Research Center for Pharmaceuticals and Equipment of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu 610106, People's Republic of China
- Anti-infective Agent Creation Engineering Research Centre of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu 610106, People's Republic of China
| | - Pei Yu
- Engineering Research Center for Pharmaceuticals and Equipment of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu 610106, People's Republic of China
| | - Bin Long
- Engineering Research Center for Pharmaceuticals and Equipment of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu 610106, People's Republic of China
| | - Ting Peng
- Anti-infective Agent Creation Engineering Research Centre of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu 610106, People's Republic of China
| | - Yujiao He
- Anti-infective Agent Creation Engineering Research Centre of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu 610106, People's Republic of China
| | - Bing Xu
- Department of Pediatric Surgery, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu 610072, People's Republic of China
| | - Li Liao
- Anti-infective Agent Creation Engineering Research Centre of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu 610106, People's Republic of China
| | - Lan Lu
- Anti-infective Agent Creation Engineering Research Centre of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu 610106, People's Republic of China
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11
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Zhu C, Wang XY, Zhao J, Long B, Xiao X, Pan LY, Yuan TF, Chen JH. Effect of transdermal drug delivery therapy on anxiety symptoms in schizophrenic patients. Front Neurosci 2023; 17:1177214. [PMID: 37360162 PMCID: PMC10289061 DOI: 10.3389/fnins.2023.1177214] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 05/25/2023] [Indexed: 06/28/2023] Open
Abstract
Objective To evaluate the efficacy and safety of transdermal drug delivery therapy for schizophrenia with anxiety symptoms. Methods A total of 80 schizophrenic patients (34 males and 56 females) with comorbid anxiety disorders were randomly assigned to the treatment group (n = 40) and the control group (n = 40) with 6 weeks of follow-up. The patients in the treatment group received the standard antipsychotic drug treatment along with transdermal drug delivery therapy. The evaluation of the patients included the Hamilton Anxiety Scale (HAMA), Hamilton Depression Scale (HAMD-17), and treatment emergent symptom scale (TESS) at baseline, 3 weeks, and 6 weeks after transdermal drug delivery therapy. The Positive and Negative Symptom Scale (PANSS) was assessed at baseline and after 6 weeks of treatment. Results After 3 and 6 weeks of treatment, the HAMA scale scores in the treatment group were lower than those in the control group (p < 0.001). However, there were no significant differences in the HAMD-17 scale scores, PANSS total scores, and subscale scores between the two groups (p > 0.05). Additionally, no significant differences in adverse effects were observed between the two groups during the intervention period (p > 0.05). After 6 weeks of penetration therapy, there was a low negative correlation between total disease duration and the change in HAMA scale score (pretreatment-posttreatment) in the treatment group. Conclusion Combined traditional Chinese medicine directed penetration therapy can improve the anxiety symptoms of patients with schizophrenia and has a safe profile.
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Affiliation(s)
- Cuifang Zhu
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Institute of Traditional Chinese Medicine for Mental Health, Shanghai, China
| | - Xin-Yue Wang
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jing Zhao
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Institute of Traditional Chinese Medicine for Mental Health, Shanghai, China
| | - Bin Long
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Institute of Traditional Chinese Medicine for Mental Health, Shanghai, China
| | - Xudong Xiao
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Institute of Traditional Chinese Medicine for Mental Health, Shanghai, China
| | - Ling-Yi Pan
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ti-Fei Yuan
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jian-Hua Chen
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Institute of Traditional Chinese Medicine for Mental Health, Shanghai, China
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12
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Chen L, Xu S, Schroer C, Jia H, Ruan Z, Qin B, Zhou Z, Long B. Comparison of Corrosion Behavior of T91, 9Cr and 9CrAl ODS Steels in Liquid Pb. Materials (Basel) 2023; 16:2295. [PMID: 36984175 PMCID: PMC10054900 DOI: 10.3390/ma16062295] [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: 02/03/2023] [Revised: 02/21/2023] [Accepted: 02/25/2023] [Indexed: 06/18/2023]
Abstract
It is important to improve the liquid lead corrosion resistance of fuel cladding alloy for promoting the development of lead-based reactors. The corrosion behaviors of traditional T91 steel and similar oxide dispersion strengthen ODS-type steels with or without the addition of Al, and were examined and compared at 600 °C in static oxygen-controlled liquid Pb in this research. High-temperature liquid lead corrosion tests were carried out for 120 h, 240 h, 500 h, 1000 h, and 2000 h, respectively, for three prepared samples. After the experiment, the corrosion behavior was evaluated and compared mainly based on the aspects of appearance, corrosion depth, microstructure, and composition difference. It was found that just the ODS design did not show a positive effect on corrosion resistance, while the addition of Al is beneficial to improving the corrosion resistance of ODS steel. The maximum corrosion depth of 9CrAl ODS is only 51.8 μm after corrosion for 2000 h, which is much lower than that of 9Cr-ODS steel. A thin film containing Al/Cr formed in the corrosion area after adding Al in 9Cr ODS steel, which played a positive role in corrosion resistance.
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Affiliation(s)
- Lingzhi Chen
- Institute of Reactor Engineering Technology, China Institute of Atomic Energy, Beijing 102413, China
| | - Shuai Xu
- School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang 621010, China
| | - Carsten Schroer
- Institute for Applied Materials-Applied Materials Physics, Karlsruhe Institute of Technology (KIT), 76344 Karlsruhe, Germany
| | - Haodong Jia
- School of Material Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Zhangshun Ruan
- Institute of Reactor Engineering Technology, China Institute of Atomic Energy, Beijing 102413, China
| | - Bo Qin
- Institute of Reactor Engineering Technology, China Institute of Atomic Energy, Beijing 102413, China
| | - Zhangjian Zhou
- School of Material Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Bin Long
- Institute of Reactor Engineering Technology, China Institute of Atomic Energy, Beijing 102413, China
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13
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Chen L, Li Y, Dong X, Tanzhu G, Chu X, Deng F, Li X, Zhang J, Long B, Jing D, Niu L, Peng H, Yang H, Zhou R. The Value of Postoperative Radiotherapy in Thymoma Patients with Myasthenia Gravis. Radiother Oncol 2023; 183:109644. [PMID: 36990391 DOI: 10.1016/j.radonc.2023.109644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Revised: 03/13/2023] [Accepted: 03/20/2023] [Indexed: 03/29/2023]
Abstract
INTRODUCTION Surgery is the first-line treatment for patients with thymoma associated with myasthenia gravis (MG); however, the value of radiotherapy among these patients remains debatable. Herein, we examined the impact of postoperative radiotherapy (PORT) on the efficacy and prognosis of patients with thymoma and MG. METHODS This retrospective cohort study included 126 patients with thymoma and MG who were enrolled in the Xiangya Hospital clinical database between 2011 and 2021. Demographic and clinical data were collected including sex, age, histologic subtype, Masaoka-Koga staging, primary tumor, lymph node, metastasis (TNM) staging, and therapeutic modalities. To evaluate short-term MG symptom improvement following PORT, we examined changes in the quantitative myasthenia gravis (QMG) scores within 3 months post-treatment. Minimal manifestation status (MMS) was the main endpoint for assessing long-term improvement in MG symptoms. Overall survival (OS) and disease-free survival (DFS) were primary endpoints to determine the impact of PORT on prognosis. RESULTS Effects of PORT on MG symptoms: QMG scores significantly differed between the non-PORT and PORT groups (χ2= 6.300, p = 0.012). The median time to achieve MMS was significantly shorter in the PORT group than that in the non-PORT group (2.0 years vs. 4.4 years; p = 0.031). Multivariate analysis revealed that radiotherapy was associated with a reduced time to achieve MMS (hazard ratio [HR] 1.971, 95% confidence interval [CI]:1.102-3.525, p = 0.022). Effects of PORT on DFS and OS: The 10-year OS rate of the entire cohort was 90.5%, whereas OS rates for the PORT and non-PORT groups were 94.4 and 85.1%, respectively. The 5-year DFS rates for the whole cohort, PORT group, and non-PORT group were 89.7, 95.8, and 81.5%, respectively. PORT was associated with improved DFS (HR 0.139, 95% CI: 0.037-0.533, p = 0.004). In the high-risk histologic subgroup (type B2, B3), patients who received PORT had better OS (p = 0.015) and DFS (p = 0.0053) than those who did not receive PORT. PORT was associated with improved DFS (HR 0.232, 95% CI: 0.069-0.782, p = 0.018) in Masaoka-Koga stages II, III, and IV disease. CONCLUSIONS Overall, our findings indicate that PORT positively impacts thymoma patients with MG, particularly those with a higher histologic subtype and Masaoka-Koga staging.
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14
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Biggs C, Long B, Rodríguez JP. Priorities for a coordinated effort on behalf of lost species: a commentary on Martin
et al
. (2023). Anim Conserv 2023. [DOI: 10.1111/acv.12862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Affiliation(s)
| | | | - J. P. Rodríguez
- IUCN Species Survival Commission, Venezuelan Institute for Scientific Investigation (IVIC) and Provita Caracas Venezuela
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15
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Qi Y, Wang K, Long B, Yue H, Wu Y, Yang D, Tong M, Shi X, Hou Y, Zhao Y. Discovery of novel 7,7-dimethyl-6,7-dihydro-5H-pyrrolo[3,4-d]pyrimidines as ATR inhibitors based on structure-based drug design. Eur J Med Chem 2023; 246:114945. [PMID: 36462444 DOI: 10.1016/j.ejmech.2022.114945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 11/15/2022] [Accepted: 11/17/2022] [Indexed: 11/27/2022]
Abstract
ATR kinase is essential to the viability of replicating cells responding to the accumulation of single-strand breaks in DNA, which is an attractive anticancer drug target based on synthetic lethality. Herein we design, synthesize, and evaluate a novel series of fused pyrimidine derivatives as ATR inhibitors. As a result, compound 48f, with an IC50 value of 0.0030 μM against ATR, displayed strong monotherapy efficacy in ataxia-telangiectasia mutated (ATM) kinase-deficient tumor cells LoVo, SW620, OVCAR-3 cell lines with IC50 values of 0.040 μM, 0.095 μM, 0.098 μM, respectively. More importantly, the combination of 48f with AZD-1390, cisplatin, oxaliplatin, and olaparib respectively resulted in synergistic activity against HT-29, HCT116, A549, MCF-7, MDA-MB-231 cells. Moreover, 48f showed a favorable pharmacokinetic profile with a bioavailability of 30.0% in SD rats, acceptable PPB, high permeability (Papp A to B = 8.23 cm s-1 × 10-6), and low risk of drug-drug interactions. Collectively, compound 48f could be a promising compound for further investigation.
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Affiliation(s)
- Yinliang Qi
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenhe District, Shenyang, Liaoning, 110016, China
| | - Kun Wang
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenhe District, Shenyang, Liaoning, 110016, China
| | - Bin Long
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenhe District, Shenyang, Liaoning, 110016, China
| | - Hao Yue
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenhe District, Shenyang, Liaoning, 110016, China
| | - Yongshuo Wu
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenhe District, Shenyang, Liaoning, 110016, China
| | - Dexiao Yang
- 3D BioOptima, 1338 Wuzhong Avenue, Suzhou, 215104, China
| | - Minghui Tong
- 3D BioOptima, 1338 Wuzhong Avenue, Suzhou, 215104, China
| | - Xuan Shi
- 3D BioOptima, 1338 Wuzhong Avenue, Suzhou, 215104, China
| | - Yunlei Hou
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenhe District, Shenyang, Liaoning, 110016, China.
| | - Yanfang Zhao
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenhe District, Shenyang, Liaoning, 110016, China.
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16
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Lei Q, Wang Y, Sui J, Luo Q, Jin F, Long B, Shu X, Li S, Huang L, Zhong M, Mao K. CAMRESBRT: Randomized Phase II Trial of Camrelizumab with Stereotactic Body Radiotherapy vs. Camrelizumab Alone in Recurrent or Metastatic Head and Neck Squamous Cell Carcinoma. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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17
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Dong H, Wu M, Xiang S, Song T, Li Y, Long B, Feng C, Shi Z. Total Syntheses and Antibacterial Evaluations of Neocyclomorusin and Related Flavones. J Nat Prod 2022; 85:2217-2225. [PMID: 36062892 DOI: 10.1021/acs.jnatprod.2c00658] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Neocyclomorusin (1), a natural bioactive pyranoflavone mainly isolated from plants of the Moraceae family, was synthesized for the first time using a Friedel-Crafts reaction, a Baker-Venkataraman (BK-VK) rearrangement, a selective epoxidation, and a novel SN2-type cyclization as the key steps. The present protocol was also successfully applied for the total synthesis of oxyisocyclointegrin (2). Structurally related natural products morusin (23) and cudraflavone B (24) were also prepared. We investigated the antibacterial activities of these natural compounds against both Gram-negative and Gram-positive strains. The prenylated flavones, morusin (23) and cudraflavone B (24), showed comparable activity to ampicillin and kanacycin A against Staphylococcus aureus. Both morusin (23) and cudraflavone B (24) showed better antibacterial activities than ampicillin against the Gram-positive bacteria Staphylococcus epidermidis and Bacillus subtilis. Both neocyclomorusin (1) and oxyisocyclointegrin (2) displayed disappointing antimicrobial activities against Escherichia coli, Staphylococcus aureus, Staphylococcus epidermidis, and Bacillus subtilis strains.
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Affiliation(s)
- Hongbo Dong
- Clinical Medical College & Affiliated Hospital, Chengdu University, Chengdu 610106, China
- School of Pharmacy, Chengdu University, Chengdu 610106, China
| | - Min Wu
- School of Pharmacy, Chengdu University, Chengdu 610106, China
- School of Food and Biological Engineering, Chengdu University, Chengdu 610106, China
| | - Shengwei Xiang
- School of Pharmacy, Chengdu University, Chengdu 610106, China
- School of Food and Biological Engineering, Chengdu University, Chengdu 610106, China
| | - Tao Song
- School of Pharmacy, Chengdu University, Chengdu 610106, China
| | - Ying Li
- School of Pharmacy, Chengdu University, Chengdu 610106, China
| | - Bin Long
- School of Pharmacy, Chengdu University, Chengdu 610106, China
| | - Chuanling Feng
- School of Pharmacy, Chengdu University, Chengdu 610106, China
| | - Zheng Shi
- Clinical Medical College & Affiliated Hospital, Chengdu University, Chengdu 610106, China
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18
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Zhang X, Shu X, Long B. Leptomeningeal metastasis from de novo metastatic nasopharyngeal carcinoma: a case report. Transl Cancer Res 2022; 11:3349-3356. [PMID: 36237253 PMCID: PMC9552056 DOI: 10.21037/tcr-22-1211] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Accepted: 07/08/2022] [Indexed: 11/26/2022]
Abstract
Background Leptomeningeal metastasis (LM) have a poor prognosis and rare studies have reported LM from nasopharyngeal carcinoma (NPC). Immune checkpoint inhibitor (ICI) was the standard first line treatment for metastatic NPC and was reported to improve intracranial response and survival in several types of cancer. Case Description In this case presentation, we present a case of a 26-year-old man with de novo metastatic NPC who initially complained of left cervical masses. A PET/CT and MRI scan revealed multiple liver, bone and brain metastasis. The patient received initial anti PD-1 antibody camrelizumab combined with chemotherapy, followed by radiotherapy to local and regional lesions. Two weeks after that, the patient experienced transient unconsciousness, persistent fatigue and pain in both lower limbs. Then MRI revealed leptomeningeal linear enhancement, hydrocephalus and increased multiple intracranial metastatic lesions. So the patient was diagnosed of LM. The therapeutic regimen then consisted of whole brain radiotherapy combined with oral capecitabine. A partial response was demonstrated and the progression-free survival (PFS) was 5 months since the diagnosis of LM. To our knowledge, this is the first case of LM from NPC treatment with ICI. Conclusions This case highlights the diagnosis and treatment of LM from NPC, and provides an optional regimen after ICI failure.
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19
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Long B, Liu Y, Zeng F, Zhou J, Yang Y. Recognition of Edge Coherent Mode in EAST with Convolutional Neural Network. Fusion Science and Technology 2022. [DOI: 10.1080/15361055.2022.2033061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- Bin Long
- Shenzhen University, College of Physics and Optoelectronic Engineering, Shenzhen, Shenzhen 518060, China
| | - Ying Liu
- Shenzhen University, College of Physics and Optoelectronic Engineering, Shenzhen, Shenzhen 518060, China
| | - Fulin Zeng
- Shenzhen University, College of Physics and Optoelectronic Engineering, Shenzhen, Shenzhen 518060, China
| | - Jijun Zhou
- Shenzhen University, College of Physics and Optoelectronic Engineering, Shenzhen, Shenzhen 518060, China
| | - Yuqian Yang
- Shenzhen University, College of Physics and Optoelectronic Engineering, Shenzhen, Shenzhen 518060, China
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20
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Li M, Long B, Dai SY, Golden JW, Wang X, Yuan JS. Altered Carbon Partitioning Enhances CO 2 to Terpene Conversion in Cyanobacteria. Biodes Res 2022; 2022:9897425. [PMID: 37850123 PMCID: PMC10521692 DOI: 10.34133/2022/9897425] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Accepted: 01/11/2022] [Indexed: 10/19/2023] Open
Abstract
Photosynthetic terpene production represents one of the most carbon and energy-efficient routes for converting CO2 into hydrocarbon. In photosynthetic organisms, metabolic engineering has led to limited success in enhancing terpene productivity, partially due to the low carbon partitioning. In this study, we employed systems biology analysis to reveal the strong competition for carbon substrates between primary metabolism (e.g., sucrose, glycogen, and protein synthesis) and terpene biosynthesis in Synechococcus elongatus PCC 7942. We then engineered key "source" and "sink" enzymes. The "source" limitation was overcome by knocking out either sucrose or glycogen biosynthesis to significantly enhance limonene production via altered carbon partitioning. Moreover, a fusion enzyme complex with geranyl diphosphate synthase (GPPS) and limonene synthase (LS) was designed to further improve pathway kinetics and substrate channeling. The synergy between "source" and "sink" achieved a limonene titer of 21.0 mg/L. Overall, the study demonstrates that balancing carbon flux between primary and secondary metabolism can be an effective approach to enhance terpene bioproduction in cyanobacteria. The design of "source" and "sink" synergy has significant potential in improving natural product yield in photosynthetic species.
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Affiliation(s)
- Man Li
- Synthetic and Systems Biology Innovation Hub, Texas A&M University, College Station, Texas 77843, USA
- Department of Plant Pathology and Microbiology, Texas A&M University, College Station, Texas 77843, USA
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of ScienceChina
| | - Bin Long
- Department of Plant Pathology and Microbiology, Texas A&M University, College Station, Texas 77843, USA
| | - Susie Y. Dai
- Department of Plant Pathology and Microbiology, Texas A&M University, College Station, Texas 77843, USA
| | - James W. Golden
- Section of Molecular Biology, University of California San Diego, La Jolla, CA 92093, USA
| | - Xin Wang
- Synthetic and Systems Biology Innovation Hub, Texas A&M University, College Station, Texas 77843, USA
- Department of Plant Pathology and Microbiology, Texas A&M University, College Station, Texas 77843, USA
- Department of Microbiology, Miami University, Oxford, Ohio 45056, USA
| | - Joshua S. Yuan
- Synthetic and Systems Biology Innovation Hub, Texas A&M University, College Station, Texas 77843, USA
- Department of Plant Pathology and Microbiology, Texas A&M University, College Station, Texas 77843, USA
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21
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Long B, Fischer B, Zeng Y, Amerigian Z, Li Q, Bryant H, Li M, Dai SY, Yuan JS. Machine learning-informed and synthetic biology-enabled semi-continuous algal cultivation to unleash renewable fuel productivity. Nat Commun 2022; 13:541. [PMID: 35087023 PMCID: PMC8795378 DOI: 10.1038/s41467-021-27665-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Accepted: 12/01/2021] [Indexed: 11/29/2022] Open
Abstract
Algal biofuel is regarded as one of the ultimate solutions for renewable energy, but its commercialization is hindered by growth limitations caused by mutual shading and high harvest costs. We overcome these challenges by advancing machine learning to inform the design of a semi-continuous algal cultivation (SAC) to sustain optimal cell growth and minimize mutual shading. An aggregation-based sedimentation (ABS) strategy is then designed to achieve low-cost biomass harvesting and economical SAC. The ABS is achieved by engineering a fast-growing strain, Synechococcus elongatus UTEX 2973, to produce limonene, which increases cyanobacterial cell surface hydrophobicity and enables efficient cell aggregation and sedimentation. SAC unleashes cyanobacterial growth potential with 0.1 g/L/hour biomass productivity and 0.2 mg/L/hour limonene productivity over a sustained period in photobioreactors. Scaling-up the SAC with an outdoor pond system achieves a biomass yield of 43.3 g/m2/day, bringing the minimum biomass selling price down to approximately $281 per ton. Growth limitation caused by mutual shading and the high harvest cost hamper algal biofuel production. Here, the authors overcome these two problems by designing a semi-continuous algal cultivation system and an aggregation-based sedimentation strategy to achieve high levels production of biomass and limonene.
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Affiliation(s)
- Bin Long
- Department of Plant Pathology and Microbiology, Texas A&M University, College Station, TX, 77843, USA
| | - Bart Fischer
- Department of Agricultural Economics, Texas A&M University, College Station, TX, 77843, USA
| | - Yining Zeng
- Renewable Resources and Enabling Sciences Center, National Renewable Energy Laboratory, Golden, CO, 80401, USA
| | - Zoe Amerigian
- Department of Plant Pathology and Microbiology, Texas A&M University, College Station, TX, 77843, USA
| | - Qiang Li
- Department of Plant Pathology and Microbiology, Texas A&M University, College Station, TX, 77843, USA
| | - Henry Bryant
- Department of Agricultural Economics, Texas A&M University, College Station, TX, 77843, USA
| | - Man Li
- Department of Plant Pathology and Microbiology, Texas A&M University, College Station, TX, 77843, USA.,Synthetic and Systems Biology Innovation Hub (SSBiH), Texas A&M University, College Station, TX, 77843, USA
| | - Susie Y Dai
- Department of Plant Pathology and Microbiology, Texas A&M University, College Station, TX, 77843, USA.,Synthetic and Systems Biology Innovation Hub (SSBiH), Texas A&M University, College Station, TX, 77843, USA
| | - Joshua S Yuan
- Department of Plant Pathology and Microbiology, Texas A&M University, College Station, TX, 77843, USA. .,Synthetic and Systems Biology Innovation Hub (SSBiH), Texas A&M University, College Station, TX, 77843, USA.
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22
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Shinde S, Singapuri S, Jiang Z, Long B, Wilcox D, Klatt C, Jones JA, Yuan JS, Wang X. Thermodynamics contributes to high limonene productivity in cyanobacteria. Metab Eng Commun 2022; 14:e00193. [PMID: 35145855 PMCID: PMC8801761 DOI: 10.1016/j.mec.2022.e00193] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2021] [Revised: 01/18/2022] [Accepted: 01/19/2022] [Indexed: 01/02/2023] Open
Abstract
Terpenoids are a large group of secondary metabolites with broad industrial applications. Engineering cyanobacteria is an attractive route for the sustainable production of commodity terpenoids. Currently, a major obstacle lies in the low productivity attained in engineered cyanobacterial strains. Traditional metabolic engineering to improve pathway kinetics has led to limited success in enhancing terpenoid productivity. In this study, we reveal thermodynamics as the main determinant for high limonene productivity in cyanobacteria. Through overexpressing the primary sigma factor, a higher photosynthetic rate was achieved in an engineered strain of Synechococcus elongatus PCC 7942. Computational modeling and wet lab analyses showed an increased flux toward both native carbon sink glycogen synthesis and the non-native limonene synthesis from photosynthate output. On the other hand, comparative proteomics showed decreased expression of terpene pathway enzymes, revealing their limited role in determining terpene flux. Lastly, growth optimization by enhancing photosynthesis has led to a limonene titer of 19 mg/L in 7 days with a maximum productivity of 4.3 mg/L/day. This study highlights the importance of enhancing photosynthesis and substrate input for the high productivity of secondary metabolic pathways, providing a new strategy for future terpenoid engineering in phototrophs. Pathway enzyme engineering marginally increases cyanobacterial terpene production. Sigma factor overexpression improves photosynthetic efficiency in cyanobacteria. Enhanced photosynthesis results in high limonene production in cyanobacteria. Enhanced photosynthesis provides high thermodynamic driving force for terpenes.
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Affiliation(s)
- Shrameeta Shinde
- Department of Microbiology, Miami University, Oxford, OH, 45056, USA
| | - Sonali Singapuri
- Department of Microbiology, Miami University, Oxford, OH, 45056, USA
| | - Zhenxiong Jiang
- Department of Microbiology, Miami University, Oxford, OH, 45056, USA
| | - Bin Long
- Synthetic and Systems Biology Innovation Hub, Department of Plant Pathology and Microbiology, Texas A&M University, College Station, TX, 77843, USA
| | - Danielle Wilcox
- Department of Microbiology, Miami University, Oxford, OH, 45056, USA
| | - Camille Klatt
- Department of Microbiology, Miami University, Oxford, OH, 45056, USA
| | - J. Andrew Jones
- Department of Chemical, Paper, and Biomedical Engineering, Miami University, Oxford, OH, 45056, USA
| | - Joshua S. Yuan
- Synthetic and Systems Biology Innovation Hub, Department of Plant Pathology and Microbiology, Texas A&M University, College Station, TX, 77843, USA
| | - Xin Wang
- Department of Microbiology, Miami University, Oxford, OH, 45056, USA
- Corresponding author.
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Sauvat L, Lhermite Q, Desplechain C, Long B, Vidal M. An ambivalent prostate nodule after Bacillus Calmette-Guérin therapy. IDCases 2021; 26:e01338. [PMID: 34849340 PMCID: PMC8608871 DOI: 10.1016/j.idcr.2021.e01338] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 11/11/2021] [Accepted: 11/11/2021] [Indexed: 11/17/2022] Open
Abstract
A 65-year-old patient without specific associated pathology was treated for a high-grade non-invasive papillary urothelial carcinoma by surgery associated with repeated intravesical Bacillus Calmette-Guérin (BCG) instillations. During follow-up, magnetic resonance imaging (MRI) found a clinically indurated prostate nodule with suspected extensive capsular invasion. Prostatic biopsies showed epithelioid and giant-cell granuloma associated with a single focus of adenocarcinoma. Urinary culture test and specific PCR confirmed the involvement of Mycobacterium bovis. The patient was treated first by rifampin, isoniazid and ethambutol and then by rifampin and isoniazid for a total duration of 9 months, with MRI reassessment at various intervals. After BCG therapy, systemic infectious complications but also local complications such as granulomatous disease have been reported, but prostatic abscesses with M. bovis mimicking cancer on MRI are rare. Consequently, we advise specific local urinary and prostate samples to test for mycobacteria (staining, culture, PCR) in order to avoid aggressive high-risk prostatic surgery. Bacillus Calmette-Guérin instillations for bladder carcinoma are usually prescribed. Infectious complications are rare after instillations and difficult to diagnose. This case of prostate nodules after treatment can suggest aggressive prostate cancer. A strategy diagnostic based on microbiology and imaging is necessary in our case. A trial antibiotic treatment should be considered at the first sign of doubt.
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Affiliation(s)
- L. Sauvat
- Infectious and Tropical Disease Unit, CHU Clermont-Ferrand, 58 Rue Montalembert, France
- Corresponding author.
| | - Q. Lhermite
- Radiology Department, CHU Clermont-Ferrand, 58 Rue Montalembert, France
| | - C. Desplechain
- Sipath Unilabs Laboratory, 18 Avenue Léonard de Vinci, 63000 Clermont-Ferrand, France
| | - B. Long
- Private Hospital "La Chataigneraie", 59 Rue de la Châtaigneraie, 63110 Beaumont, France
| | - M. Vidal
- Infectious and Tropical Disease Unit, CHU Clermont-Ferrand, 58 Rue Montalembert, France
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Yang Y, Liu Y, Huang J, Ye Y, Long B, Zeng F, Wu Z. Improvement of feature extraction and intelligent identification method for the edge coherent mode in EAST. Fusion Engineering and Design 2021. [DOI: 10.1016/j.fusengdes.2021.112552] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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25
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Long B, Yao LF, Chen SC, Shui J, Ye XM, Yi HQ, Lou C. Clinical significance of extra-thyroid 99mTc-pertechnetate uptake before initial radioiodine therapy for differentiated thyroid carcinoma. J Int Med Res 2021; 49:3000605211012667. [PMID: 34024177 PMCID: PMC8150485 DOI: 10.1177/03000605211012667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
OBJECTIVE To analyse the clinical characteristics of extra-thyroid 99mTc-pertechnetate uptake in order to explore the effect of the phenomenon on radioactive iodine (RAI) therapy for differentiated thyroid carcinoma (DTC) and its clinical significance. METHODS This study retrospectively selected patients with DTC and extra-thyroid 99mTc-pertechnetate uptake. The clinical features, location, location count and extra-thyroid 99mTc-pertechnetate uptake distribution were analysed, combined with the uptake rate, stimulated thyroglobulin (sTg) level, post-therapy whole-body scan and curative effect. RESULTS A total of 38 patients were enrolled in the study and 65 extra-thyroid 99mTc-pertechnetate foci were detected. Thirty-four patients showed abnormal 99mTc-pertechnetate uptake in the lymph nodes (26 of 38; 68.4%), lungs (four of 38; 10.5%) and bones (four of 38; 10.5%). The corresponding uptake rates were 0.2%, 0.2% and 0.8%, respectively. The uptake rate and sTg were significantly positively correlated (r = 0.36). 131I uptake was found in 36 patients at the 99mTc-pertechnetate uptake site. The number of iodine uptake foci was significantly higher than that of 99mTc-pertechnetate uptake foci. The sTg value and pathological staging significantly differed between the excellent and nonexcellent response groups (Z = -2.947 and Z = -2.348, respectively). CONCLUSION Extra-thyroid 99mTc-pertechnetate uptake mostly indicated metastases with specific clinical features, which may have prognostic value for the judgment of iodine uptake function and the RAI therapy plan.
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Affiliation(s)
- Bin Long
- Department of Nuclear Medicine, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China.,Department of Nuclear Medicine, The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, Zhejiang Province, China
| | - Li-Fang Yao
- Department of Nuclear Medicine, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China.,Department of Nuclear Medicine, The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, Zhejiang Province, China
| | - Shou-Cong Chen
- Department of Nuclear Medicine, The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, Zhejiang Province, China
| | - Jin Shui
- Department of Nuclear Medicine, The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, Zhejiang Province, China
| | - Xue-Mei Ye
- Department of Nuclear Medicine, The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, Zhejiang Province, China
| | - He-Qing Yi
- Department of Nuclear Medicine, The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, Zhejiang Province, China
| | - Cen Lou
- Department of Nuclear Medicine, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
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Menon G, Long B, Petit R, Zimmer J, Gadbois K, Niatsetski Y, Wiebe E, Cuartero J, Huang F, Yip E. PO-0214 Investigation of obstructions in ring applicators during pulsed dose rate cervix brachytherapy. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)06373-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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27
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Sui J, Wang Y, Long B, Shu X, Tang Z, Wu Y, Tao D. Concurrent Chemoradiotherapy with Triweekly Nedaplatin versus Weekly Nedaplatin in Stage II–IVa Nasopharyngeal Carcinoma. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.2244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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28
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Bahce I, Hashemi S, Fransen M, Veltman J, McDermott L, Hutchins J, Caldwell C, Argyres M, Long B, Wolf J, Thunnissen E. 1390P Impact of adding viagenpumatucel-L to nivolumab in non-small cell lung cancer (NSCLC) patients with low levels of tumour infiltrating lymphocytes. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.1704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Abstract
Hepatocellular carcinoma (HCC) is a malignant tumor with unsatisfactory prognosis. The abnormal genes expression is significantly associated with initiation and poor prognosis of HCC. The aim of the present study was to identify molecular biomarkers related to the initiation and development of HCC via bioinformatics analysis, so as to provide a certain molecular mechanism for individualized treatment of hepatocellular carcinoma.Three datasets (GSE101685, GSE112790, and GSE121248) from the GEO database were used for the bioinformatics analysis. Differentially expressed genes (DEGs) of HCC and normal liver samples were obtained using GEO2R online tools. Gene ontology term and Kyoto Encyclopedia of Gene and Genome (KEGG) pathway analysis were conducted via the Database for Annotation, Visualization, and Integrated Discovery online bioinformatics tool. The protein-protein interaction (PPI) network was constructed by the Search Tool for the Retrieval of Interacting Genes database and hub genes were visualized by Cytoscape. Survival analysis and RNA sequencing expression were conducted by UALCAN and Gene Expression Profiling Interactive Analysis.A total of 115 shared DEGs were identified, including 30 upregulated genes and 85 downregulated genes in HCC samples. P53 signaling pathway and cell cycle were the major enriched pathways for the upregulated DEGs whereas metabolism-related pathways were the major enriched pathways for the downregulated DEGs. The PPI network was established with 105 nodes and 249 edges and 3 significant modules were identified via molecular complex detection. Additionally, 17 candidate genes from these 3 modules were significantly correlated with HCC patient survival and 15 of 17 genes exhibited high expression level in HCC samples. Moreover, 4 hub genes (CCNB1, CDK1, RRM2, BUB1B) were identified for further reanalysis of KEGG pathway, and enriched in 2 pathways, the P53 signaling pathway and cell cycle pathway.Overexpression of CCNB1, CDK1, RRM2, and BUB1B in HCC samples was correlated with poor survival in HCC patients, which could be potential therapeutic targets for HCC.
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Affiliation(s)
- Quanquan Sun
- Institute of Cancer and Basic Medicine (ICBM), Chinese Academy of Sciences
- Department of Radiation Oncology, Cancer Hospital of the University of Chinese Academy of Sciences, Beijing
- Department of Radiation Oncology
- Zhejiang Key Laboratory of Radiation Oncology, Zhejiang Cancer Hospital
| | - Peng Liu
- Institute of Cancer and Basic Medicine (ICBM), Chinese Academy of Sciences
- Department of Radiation Oncology, Cancer Hospital of the University of Chinese Academy of Sciences, Beijing
- Department of Radiation Oncology
- Zhejiang Key Laboratory of Radiation Oncology, Zhejiang Cancer Hospital
| | - Bin Long
- Institute of Cancer and Basic Medicine (ICBM), Chinese Academy of Sciences
- Department of Nuclear Medicine, Zhejiang Cancer Hospital, Key Laboratory of Head and Neck Cancer Translational Research of Zhejiang, Hangzhou, Zhejiang Province, People's Republic of China
| | - Yuan Zhu
- Institute of Cancer and Basic Medicine (ICBM), Chinese Academy of Sciences
- Department of Radiation Oncology, Cancer Hospital of the University of Chinese Academy of Sciences, Beijing
- Department of Radiation Oncology
- Zhejiang Key Laboratory of Radiation Oncology, Zhejiang Cancer Hospital
| | - Tongxin Liu
- Institute of Cancer and Basic Medicine (ICBM), Chinese Academy of Sciences
- Department of Radiation Oncology, Cancer Hospital of the University of Chinese Academy of Sciences, Beijing
- Department of Radiation Oncology
- Zhejiang Key Laboratory of Radiation Oncology, Zhejiang Cancer Hospital
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30
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Pollet EP, Pollet DP, Long B, Qutub AA. 1205 Activity Trackers As A Tool In Sleep Research: Determining Discrepancies In Trackers Vs. PSG. Sleep 2020. [DOI: 10.1093/sleep/zsaa056.1199] [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: 11/14/2022] Open
Abstract
Abstract
Introduction
Fitness-based wearables and other emerging sensor technologies have the potential to track sleep across large populations longitudinally in at-home environments. To understand how these devices can inform research studies, limitations of available trackers need to be compared to traditional polysomnography (PSG). Here we assessed discrepancies in sleep staging in activity trackers vs. PSG in subjects with various sleep disorders.
Methods
Twelve subjects (age 41-78, 7f, 5m) wore a Fitbit Charge 3 while undergoing a scheduled sleep study. Six subjects had been previously diagnosed with a sleep disorder (5 OSA, 1 CSA). 4 subjects used CPAP throughout the night, 2 had a split night (CPAP 2nd half of the night), and 6 had a PSG only. Activity tracker staging was compared to 2 RPSGTs staging.
Results
Of the 12 subjects, eight subjects’ sleep was detected in the activity tracker, and compared across sleep stages to the PSG (7 female, 1 male, ages 41-78, AHI 0.3-87, RDI 0.5-94.4, sleep efficiency 74%+/-18, 4 PSG, 1 split, 3 CPAP). The activity tracker matched either tech 52% (+/- 13). The average difference in score tech and activity tracker staging for sleep onset (SO) was 16 +/- 15 minutes and wake after sleep onset was 43.5 +/- 44 minutes. Sensitivity, specificity, and balanced accuracy were found for each sleep stage. Respectively, Wake: 0.45+/-0.27, 0.97+/-0.03, 0.71+/-0.12, REM: 0.41+/-0.30, 0.90+/-0.06, 0.60+/-0.28, Light: 0.71+/-0.09, 0.58+/-0.19, 0.65+/-0.10, Deep: 0.63+/-0.52, 0.88+/-0.05, 0.59+/-0.49.
Conclusion
From this study of 12 subjects seen at a sleep clinic for suspected sleep disorders, activity trackers performed best in wake, REM and deep sleep specificity (>=88%), while they lacked sensitivity to REM and wake (<=45%) stages. The tracker did not detect sleep in 4 subjects who had elevated AHI or low sleep efficiency. Further analysis can identify whether discrepancies between the Fitbit and PSG can be predicted by distinct patterns in sleep staging and/or identify subject exclusion criteria for activity tracking studies.
Support
This project in on-going with the support of Academy Diagnostics Sleep and EEG Center and staff.
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Affiliation(s)
- E P Pollet
- University of Texas at San Antonio, San Antonio, TX
- Academy Diagnostics Sleep and EEG Center, San Antonio, TX
| | - D P Pollet
- Academy Diagnostics Sleep and EEG Center, San Antonio, TX
| | - B Long
- University of Texas at San Antonio, San Antonio, TX
| | - A A Qutub
- University of Texas at San Antonio, San Antonio, TX
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Zheng J, Long B, Xie F. General mechanisms for policy-making on environmental remediation at the post-closure nuclear test sites in the USA. Environ Sci Pollut Res Int 2020; 27:11484-11493. [PMID: 32077032 DOI: 10.1007/s11356-020-08053-3] [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: 09/05/2019] [Accepted: 02/10/2020] [Indexed: 06/10/2023]
Abstract
This paper aims to give a condensed introduction to the general mechanisms for policy-making on environmental remediation at the post-closure US contaminated nuclear sites, the accomplishment of "Clean Closure," and the process of setting the goal "Closure in Place." The researches were conducted in three perspectives including overall guidelines, principles of corrective actions, and implementation of practical measures. The results indicated that the round of environmental restoration policies at the post-closure US contaminated nuclear test sites were comprehensive. It was supported by the visions and principles of differentiated and classified governance, demand-driven approach, highlights, unified planning, and progressive implementation in all directions. Meanwhile, it elaborates the diverse policy-making related issues of environmental governance at the polluted US nuclear sites upon closure and presents the preliminary analysis on them respectively to demonstrate valuable reference for the similar researches on the environmental governance of the contaminated nuclear areas as expected.
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Affiliation(s)
- Jinming Zheng
- The Northwest Institute of Nuclear Technology (NINT), Xi'an, 710024, China.
| | - Bin Long
- The Northwest Institute of Nuclear Technology (NINT), Xi'an, 710024, China
| | - Fengyu Xie
- The Northwest Institute of Nuclear Technology (NINT), Xi'an, 710024, China
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32
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Long B, Wang Q, Li J, Zhou G, Zhang H, Du J, Ma H, Fan C, Tian Y, Feng S. The development of a rapid and highly sensitive monitoring system for radioxenon isotopes. J Environ Radioact 2019; 208-209:106031. [PMID: 31450017 DOI: 10.1016/j.jenvrad.2019.106031] [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: 06/17/2019] [Revised: 08/16/2019] [Accepted: 08/19/2019] [Indexed: 06/10/2023]
Abstract
The rapid monitoring of radioactive gas is one of the most direct and sensitive methods used to characterize the leakage of nuclear installations, and its technical difficulty lies in achieving the goals of rapid and high sensitivity as much as possible. Several techniques, including adsorption at ultralow temperatures, impurity removal with hollow fiber membranes, and on-site measurements with low background, were used to develop a rapid and highly sensitive monitoring system for radioxenon isotope. This system could simultaneously separate xenon from air and measure radioxenon isotopes in a rapid and efficient way. The technical specifications of this system are as follows: the recovery of stable xenon is greater than 70%; and the MDCs of 133Xe and 135Xe are 4.3 Bq/m3 and 0.4 Bq/m3 within a 30 min cycle of sampling and testing, respectively. It is worth noting that the MDC of 133Xe here is only approximately 1/18000 to 1/800 of those obtained with other similar equipment, and the monitoring period of this system is one fortieth of that of noble gas equipment for OSI, for example, XESPM-III. As a result, the standard uncertainties are less than 16%. The system developed in this paper can be applied in leakage monitoring of nuclear facilities and can also provide instructive technical support for other tests, such as nuclear safety monitoring and evaluation.
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Affiliation(s)
- Bin Long
- Key Laboratory of Particle and Radiation Imaging of Ministry of Education, Department of Engineering Physics, Tsinghua University, Beijing, 100084, China; Northwest Institute of Nuclear Technology, Xi'an, 710024, China.
| | - Qunshu Wang
- Northwest Institute of Nuclear Technology, Xi'an, 710024, China
| | - Junli Li
- Key Laboratory of Particle and Radiation Imaging of Ministry of Education, Department of Engineering Physics, Tsinghua University, Beijing, 100084, China
| | - Guoqing Zhou
- Northwest Institute of Nuclear Technology, Xi'an, 710024, China
| | - Haifei Zhang
- Northwest Institute of Nuclear Technology, Xi'an, 710024, China
| | - Jixing Du
- Northwest Institute of Nuclear Technology, Xi'an, 710024, China
| | - Huaicheng Ma
- Northwest Institute of Nuclear Technology, Xi'an, 710024, China
| | - Chengzhou Fan
- Northwest Institute of Nuclear Technology, Xi'an, 710024, China
| | - Yanjie Tian
- Northwest Institute of Nuclear Technology, Xi'an, 710024, China
| | - Shujuan Feng
- Northwest Institute of Nuclear Technology, Xi'an, 710024, China
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Newberry R, Brown D, Mitchell T, Achay J, Rahm S, Long B, Becker T, Maddry J, Grier G, Davies G. 275 Comparison of Standard Left Anterolateral Thoracotomy vs. Modified Bilateral “Clamshell” Thoracotomy Performed by Emergency Physicians. Ann Emerg Med 2019. [DOI: 10.1016/j.annemergmed.2019.08.233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Ying M, Liu J, Zhou W, Weng K, Long B, Wang Y. The Role of Additional Chemotherapy in Combination with Concurrent Chemoradiotherapy for Locally Advanced Inoperable Non-Small Cell Lung Cancer, a Systematic Review and Meta-Analysis of 12 Randomized Trials. Cancer Invest 2019; 37:376-386. [PMID: 31474153 DOI: 10.1080/07357907.2019.1656730] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
This meta-analysis aims to evaluate the effectiveness of chemotherapy before (I-CRT) or after (CRT-C) chemoradiotherapy (CRT) for inoperable locally advanced non-small cell lung cancer (LA-NSCLC). According to the object response rate (ORR) and disease control rate (DCR), there were no differences among I-CRT, CRT, and CRT-C treatments. I-CRT did not have significant survival benefits compared with CRT alone. Similar results comparing CRT-C with CRT were observed. Furthermore, I-CRT was not associated with improved survival compared to CRT-C with respect to OS and PFS. Our meta-analysis suggests the effects of additional chemotherapy added to CRT were limited for unselected LA-NSCLC.
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Affiliation(s)
- Min Ying
- Department of Radiation Oncology, Chongqing University Cancer Hospital & Chongqing Cancer Institute & Chongqing Cancer Hospital , Chongqing Province , People's Republic of China
| | - Jinkun Liu
- Chongqing Key Laboratory of Traditional Chinese Medicine to Prevent and Treat Autoimmune Diseases, Chongqing Hospital of Traditional Chinese Medicine , Chongqing Province , People's Republic of China.,College Pharmacy, Chengdu University of Traditional Chinese Medicine , Sichuan Province , People's Republic of China
| | - Wei Zhou
- Department of Radiation Oncology, Chongqing University Cancer Hospital & Chongqing Cancer Institute & Chongqing Cancer Hospital , Chongqing Province , People's Republic of China
| | - Kegui Weng
- Department of Radiation Oncology, Chongqing University Cancer Hospital & Chongqing Cancer Institute & Chongqing Cancer Hospital , Chongqing Province , People's Republic of China
| | - Bin Long
- Department of Radiation Oncology, Chongqing University Cancer Hospital & Chongqing Cancer Institute & Chongqing Cancer Hospital , Chongqing Province , People's Republic of China
| | - Ying Wang
- Department of Radiation Oncology, Chongqing University Cancer Hospital & Chongqing Cancer Institute & Chongqing Cancer Hospital , Chongqing Province , People's Republic of China
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35
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Kilts T, Long B, Glasgow A, Habermann E, Bakkum-Gamez J, Cliby W. Invasive vulvar Extramammary Paget’s Disease in the United States. Gynecol Oncol 2019. [DOI: 10.1016/j.ygyno.2019.03.236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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36
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Xiang SY, Zhao J, Lu Y, Chen RM, Wang Y, Chen Y, Long B, Zhu LP, Yao PF, Xu YF, Chen JH. Network pharmacology-based identification for therapeutic mechanism of Ling-Gui-Zhu-Gan decoction in the metabolic syndrome induced by antipsychotic drugs. Comput Biol Med 2019; 110:1-7. [PMID: 31085379 DOI: 10.1016/j.compbiomed.2019.05.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [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: 03/06/2019] [Revised: 04/29/2019] [Accepted: 05/06/2019] [Indexed: 02/06/2023]
Abstract
BACKGROUND The metabolic syndrome (MetS) is a common side effect of second-generation antipsychotic drugs (SGAs), leading to poor prognosis in patients with mental illness. The traditional Chinese herbal formula Ling-Gui-Zhu-Gan decoction (LGZGD) is a clinically validated remedy for SGAs-induced MetS, but its underlying mechanism remains unclear. METHODS A network pharmacology-based analysis was performed to explore predicted plasma-absorbed components, putative therapeutic targets, and main pathways involved in LGZGD bioactivity. We constructed a target interaction network between the predicted targets of LGZGD and the known targets of MetS, after which we extracted major hubs using topological analysis. Thereafter, the maximum value of "edge betweenness" of all interactions was defined as a bottleneck, which suggested its importance in connecting all targets in the network. Finally, a pathway enrichment analysis of major hubs was used to reveal the biological functions of LGZGD. RESULTS This approach identified 120 compounds and 361 candidate targets of LGZGD. According to the data generated in this study, the interaction between JUN and APOA1 plays a vital role in the treatment of SGAs-induced MetS using LGZGD. Interestingly, JUN was a putative target of LGZGD and APOA1 is one of the known targets of both MetS and SGAs (olanzapine and clozapine). LGZGD was significantly associated with several pathways including PI3K-Akt signaling, insulin resistance, and MAPK signaling pathway. CONCLUSIONS LGZGD might inhibit JUN and thereby increases the expression of APOA1 to maintain metabolic homeostasis via some vital pathways.
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Affiliation(s)
- Si-Ying Xiang
- Shanghai Key Laboratory of Psychotic Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200030, PR China
| | - Jing Zhao
- Shanghai Key Laboratory of Psychotic Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200030, PR China
| | - Ying Lu
- Shanghai Key Laboratory of Psychotic Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200030, PR China
| | - Ru-Meng Chen
- Shanghai Key Laboratory of Psychotic Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200030, PR China
| | - Yan Wang
- Shanghai Key Laboratory of Psychotic Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200030, PR China
| | - Yi Chen
- Department of Nephrology, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, PR China
| | - Bin Long
- Shanghai Key Laboratory of Psychotic Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200030, PR China
| | - Li-Ping Zhu
- Shanghai Key Laboratory of Psychotic Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200030, PR China
| | - Pei-Fen Yao
- Shanghai Key Laboratory of Psychotic Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200030, PR China
| | - Yi-Feng Xu
- Shanghai Key Laboratory of Psychotic Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200030, PR China.
| | - Jian-Hua Chen
- Shanghai Key Laboratory of Psychotic Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200030, PR China.
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Oosterhof F, Long B, de Vries J, Timmermans RGE, van Kolck U. Baryon-Number Violation by Two Units and the Deuteron Lifetime. Phys Rev Lett 2019; 122:172501. [PMID: 31107085 DOI: 10.1103/physrevlett.122.172501] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Indexed: 06/09/2023]
Abstract
We calculate the lifetime of the deuteron with dimension-nine quark operators that violate baryon number by two units. We construct an effective field theory for |ΔB|=2 interactions that give rise to neutron-antineutron (n-n[over ¯]) oscillations and dinucleon decay within a consistent power counting. We calculate the ratio of the deuteron lifetime to the square of the n-n[over ¯] oscillation time up to next-to-leading order. Our result, which is analytical and has a quantified uncertainty, is smaller by a factor ≃2.5 than earlier estimates based on nuclear models, which impacts the indirect bound on the n-n[over ¯] oscillation time and future experiments. We discuss how combined measurements of n-n[over ¯] oscillations and deuteron decay can help to identify the sources of baryon-number violation.
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Affiliation(s)
- F Oosterhof
- Van Swinderen Institute for Particle Physics and Gravity, University of Groningen, 9747 AG Groningen, The Netherlands
| | - B Long
- College of Physical Science and Technology, Sichuan University, Chengdu, Sichuan 610065, China
| | - J de Vries
- Amherst Center for Fundamental Interactions, Department of Physics, University of Massachusetts Amherst, Amherst, Massachusetts 01003, USA
- RIKEN BNL Research Center, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
| | - R G E Timmermans
- Van Swinderen Institute for Particle Physics and Gravity, University of Groningen, 9747 AG Groningen, The Netherlands
| | - U van Kolck
- Institut de Physique Nucléaire, CNRS/IN2P3, Université Paris-Sud, Université Paris-Saclay, 91406 Orsay, France
- Department of Physics, University of Arizona, Tucson, Arizona 85721, USA
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Padrela LM, Castro-Dominguez B, Ziaee A, Long B, Ryan KM, Walker G, O'Reilly EJ. Co-crystal polymorphic control by nanodroplet and electrical confinement. CrystEngComm 2019. [DOI: 10.1039/c9ce00060g] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The polymorphic control of the co-crystal carbamazepine–saccharin (CBZ–SAC) metastable form II was achieved by nano-droplet confinement in tandem with droplet surface charging induced by electrospraying the precursor solution.
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Affiliation(s)
- L. M. Padrela
- Synthesis and Solid State Pharmaceutical Centre (SSPC)
- Bernal Institute University of Limerick Limerick
- Limerick
- Ireland
| | | | - A. Ziaee
- Synthesis and Solid State Pharmaceutical Centre (SSPC)
- Bernal Institute University of Limerick Limerick
- Limerick
- Ireland
| | - B. Long
- Synthesis and Solid State Pharmaceutical Centre (SSPC)
- Bernal Institute University of Limerick Limerick
- Limerick
- Ireland
| | - K. M. Ryan
- Synthesis and Solid State Pharmaceutical Centre (SSPC)
- Bernal Institute University of Limerick Limerick
- Limerick
- Ireland
| | - G. Walker
- Synthesis and Solid State Pharmaceutical Centre (SSPC)
- Bernal Institute University of Limerick Limerick
- Limerick
- Ireland
| | - E. J. O'Reilly
- Synthesis and Solid State Pharmaceutical Centre (SSPC)
- Bernal Institute University of Limerick Limerick
- Limerick
- Ireland
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39
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Cover M, Tafoya C, Long B, Cranford J, Burkhardt J, Wallace C, Theyyunni N, Bassin B, Lowell M, Kessler R. 211 Critical Care Ultrasound Performed by Non-Physician Providers Changes Out-of-Hospital Management. Ann Emerg Med 2018. [DOI: 10.1016/j.annemergmed.2018.08.216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Long B, Zhang H, Zhou G, Fan C, Tian Z, Du J, Xu M, Ma H, Tian Y, Li J, Wang Q. The efficiency calibration of radioxenon isotopes of inhomogeneous adsorption column for HPGe γ spectrometry. J Radioanal Nucl Chem 2018. [DOI: 10.1007/s10967-018-5969-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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41
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Ju P, Long B, Li L, Su Q, Wu X, Lu D. Scaling analysis of core pressure drop in reduced height integral test facility. KERNTECHNIK 2018. [DOI: 10.3139/124.110897] [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: 11/20/2022]
Abstract
Abstract
Integral test plays essential role to assess the design of the emergency cooling system of nuclear reactors. Different from full height integral test facilities, reduced height integral test facilities have new problems on the pressure drop scaling. This paper mainly focuses on scaling of pressure drop across the core as it is the major pressure drop in primary loop. The analysis of pressure drop across the core has been divided into three terms and each term has been discussed separately based on two conditions: the normal operation condition and natural circulation condition. After that, the total pressure drop ratios under these two conditions have been discussed.
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Affiliation(s)
- P. Ju
- China Nuclear Power Technology Research Institute Co. Ltd , 12 Gaoke Av., Shenzhen, 518000 , P.R. China
| | - B. Long
- China Nuclear Power Technology Research Institute Co. Ltd , 12 Gaoke Av., Shenzhen, 518000 , P.R. China
| | - L. Li
- China Nuclear Power Technology Research Institute Co. Ltd , 12 Gaoke Av., Shenzhen, 518000 , P.R. China
| | - Q. Su
- China Nuclear Power Technology Research Institute Co. Ltd , 12 Gaoke Av., Shenzhen, 518000 , P.R. China
| | - X. Wu
- China Nuclear Power Technology Research Institute Co. Ltd , 12 Gaoke Av., Shenzhen, 518000 , P.R. China
| | - D. Lu
- China Nuclear Power Technology Research Institute Co. Ltd , 12 Gaoke Av., Shenzhen, 518000 , P.R. China
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Qiao Y, Mei Y, Han H, Liu F, Yang XM, Shao Y, Xie B, Long B. Effects of Omega-3 in the treatment of violent schizophrenia patients. Schizophr Res 2018; 195:283-285. [PMID: 28830741 DOI: 10.1016/j.schres.2017.08.026] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Revised: 08/01/2017] [Accepted: 08/16/2017] [Indexed: 12/01/2022]
Abstract
OBJECTIVE This study was designed to explore the relationship in between the daily consumption of fish oil (360mg DHA+540mg EPA), and reduction of symptoms and violent behavior among patients with schizophrenia. METHOD Fifty inpatients meeting ICD-10 criteria for schizophrenia and scoring more than four of Modified Overt Aggression Scale (MOAS) with antipsychotics treatment were randomly assigned to receive either fish oil (N=28) or a placebo (N=22) in a twelve week, double-blind supplementation trial. Assessments were performed at baseline and at weeks 4, 8 and 12. RESULTS The PANSS and CGI scores decreased at the week of 4, 8 and 12, but no differences were found between the two groups. MOAS scores declined significantly at weeks 4, 8 and 12. At week 12, MOAS scores of the fish oil group declined significantly than the placebo group (t=-2.40, P<0.05). CONCLUSIONS violent schizophrenia patients treated with fish oil (360mg DHA+540mg EPA) demonstrated a decrease in violence, but improvement in positive and negative symptoms was no greater than patients treated with the placebo after twelve weeks.
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Affiliation(s)
- Yi Qiao
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China
| | - Yi Mei
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China
| | - Huiqin Han
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China
| | - FengJu Liu
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China
| | - Xiao Min Yang
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China
| | - Yang Shao
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China
| | - Bin Xie
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China.
| | - Bin Long
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China.
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Pranata A, Perraton L, El-Ansary D, Clark R, Mentiplay B, Fortin K, Long B, Brandham R, Bryant A. Trunk and lower limb coordination during lifting in people with and without chronic low back pain. J Biomech 2018; 71:257-263. [DOI: 10.1016/j.jbiomech.2018.02.016] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Revised: 01/20/2018] [Accepted: 02/11/2018] [Indexed: 10/18/2022]
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Wang F, Jiang C, Ye Z, Sun Q, Liu T, Xu M, Wu P, Shi K, Long B, Fu Z, Jiang Y. Efficacy and Safety of Nimotuzumab Plus Radiotherapy With or Without Cisplatin-Based Chemotherapy in an Elderly Patient Subgroup (Aged 60 and Older) With Nasopharyngeal Carcinoma. Transl Oncol 2018; 11:338-345. [PMID: 29425953 PMCID: PMC5884184 DOI: 10.1016/j.tranon.2018.01.013] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Revised: 01/16/2018] [Accepted: 01/16/2018] [Indexed: 12/30/2022] Open
Abstract
OBJECTIVE This study was conducted to assess the efficacy and safety of nimotuzumab combined with radiotherapy (RT) in elderly patients with nasopharyngeal carcinoma. MATERIALS AND METHODS The clinical data of 75 nasopharyngeal carcinoma patients, who were initially treated with nimotuzumab combined with RT, were collected and retrospectively reviewed from December 2008 to April 2014. They were aged 60 to 81 years (median 64 years). The distribution of disease was stage II in 10 (13.3%), stage III in 33 (44.0%), and stage IV in 32 (42.7%). Among these patients, 59 cases received cisplatin-based chemotherapy. Survival outcomes and treatment toxicity were analyzed using IBM SPSS 19.0 software. RESULTS With a median follow-up of 45 months (range, 13-78 months), the estimated 3-year local recurrence-free survival (LRFS), regional recurrence-free survival (RRFS), distant metastasis-free survival (DMFS), progression failure-free survival (PFS), and overall survival (OS) rates were 95.6%, 95.5%, 98.6%, 89.7%, and 89.2%, respectively. In the subgroup, 3-year OS rate in the patients with concurrent chemotherapy was 90.5% and 77.4% in patients without concurrent chemotherapy (Log-Rank = 1.795, P = .180). Univariate analysis showed that T stage and clinical stage were correlated with OS. Multivariate analysis indicated that age, T stage and tumor response at the end of treatment were independent prognosticators. Nine patients experienced grade 3 to 4 acute mucositis and 26 patients experienced grade 3-4 leukocytopenia, with no cases of skin rash and infusion reaction. Twelve patients developed mild liver function damage. No serious gastrointestinal or renal toxicities were observed. CONCLUSION The efficacy of combined nimotuzumab with RT in elderly NPC patients was encouraging and the toxicities were accepted. In addition, nimotuzumab provides a better option for elderly patients who cannot be tolerate chemotherapy.
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Affiliation(s)
- Fangzheng Wang
- Department of Radiation Oncology, Zhejiang Cancer Hospital, Zhejiang, Hangzhou, 310022, People's Republic of China; Zhejiang Key Laboratory of Radiation Oncology, Zhejiang, Hangzhou, 310022, People's Republic of China.
| | - Chuner Jiang
- Department of Breast Tumor Surgery, Zhejiang Cancer Hospital, Zhejiang, Hangzhou, 310022, People's Republic of China
| | - Zhiming Ye
- Department of Radiation Oncology, Zhejiang Cancer Hospital, Zhejiang, Hangzhou, 310022, People's Republic of China; Zhejiang Key Laboratory of Radiation Oncology, Zhejiang, Hangzhou, 310022, People's Republic of China
| | - Quanquan Sun
- Department of Radiation Oncology, Zhejiang Cancer Hospital, Zhejiang, Hangzhou, 310022, People's Republic of China; Zhejiang Key Laboratory of Radiation Oncology, Zhejiang, Hangzhou, 310022, People's Republic of China
| | - Tongxin Liu
- Department of Radiation Oncology, Zhejiang Cancer Hospital, Zhejiang, Hangzhou, 310022, People's Republic of China; Zhejiang Key Laboratory of Radiation Oncology, Zhejiang, Hangzhou, 310022, People's Republic of China
| | - Min Xu
- Department of Physics, Zhejiang Cancer Hospital, Zhejiang, Hangzhou, 310022, People's Republic of China
| | - Peng Wu
- Department of Pathology, Zhejiang Cancer Hospital, Zhejiang, Hangzhou, 310022, People's Republic of China
| | - Kaiyuan Shi
- Department of Ultrasonography, Zhejiang Cancer Hospital, Zhejiang, Hangzhou, 310022, People's Republic of China
| | - Bin Long
- Department of Nuclear Medicine, Zhejiang Cancer Hospital, Zhejiang, Hangzhou, 310022, People's Republic of China
| | - Zhenfu Fu
- Department of Radiation Oncology, Zhejiang Cancer Hospital, Zhejiang, Hangzhou, 310022, People's Republic of China; Zhejiang Key Laboratory of Radiation Oncology, Zhejiang, Hangzhou, 310022, People's Republic of China
| | - Yangming Jiang
- Department of Didital Earth, Institute of Remote Sensing and Didital Earth, CAS, Beijing, 100101, People's Republic of China.
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Yi H, Ye X, Long B, Ye T, Zhang L, Yan F, Yang Y, Li L. Inhibition of the AKT/mTOR Pathway Augments the Anticancer Effects of Sorafenib in Thyroid Cancer. Cancer Biother Radiopharm 2018. [PMID: 28622037 DOI: 10.1089/cbr.2017.2187] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [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: 12/21/2022] Open
Abstract
BACKGROUND Sorafenib is a multikinase inhibitor that has been approved for the treatment of patients with advanced 131iodine (131I) refractory differentiated thyroid cancer (DTC). However, the progression-free survival of patients with advanced 131I refractory DTC is short, and most DTC patients eventually acquire resistance to sorafenib. Therefore, new therapeutic strategies need to be developed. MATERIALS AND METHODS The thyroid cancer cell lines 8505C and FTC133 were treated with sorafenib in the presence or absence of BEZ235 or small interfering RNA (siRNA) directed against AKT. A CCK8 kit was used to evaluate cell viability. Protein expression levels of relevant genes were determined by Western blotting analysis, whereas messenger RNA expression levels were determined by real-time PCR analysis. Flow cytometry was performed to assess the number of apoptotic cells. RESULTS The results indicate that sorafenib simultaneously inhibited the activities of the MAPK and PI3K/AKT/mTOR pathways in thyroid cancer cells. Treatment of 8505C and FTC133 cells with NVP-BEZ235, siRNA against AKT, or sorafenib induced tumor cell apoptosis and led to reduced tumor cell proliferation. Sorafenib in combination with PI3K/AKT/mTOR inhibition by NVP-BEZ235 or AKT siRNA enhanced apoptosis and proliferation suppression. CONCLUSIONS The evidence of this study suggests that a combinatorial approach that inhibits both the MAPK and PI3K/AKT/mTOR pathways exerts a greater antitumor effect than sorafenib alone in thyroid cancer cell lines.
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Affiliation(s)
- Heqing Yi
- 1 Department of Nuclear Medicine, Zhejiang Cancer Hospital , Hangzhou, People's Republic of China
| | - Xuemei Ye
- 1 Department of Nuclear Medicine, Zhejiang Cancer Hospital , Hangzhou, People's Republic of China
| | - Bin Long
- 1 Department of Nuclear Medicine, Zhejiang Cancer Hospital , Hangzhou, People's Republic of China
| | - Ting Ye
- 1 Department of Nuclear Medicine, Zhejiang Cancer Hospital , Hangzhou, People's Republic of China
| | - Lijun Zhang
- 1 Department of Nuclear Medicine, Zhejiang Cancer Hospital , Hangzhou, People's Republic of China
| | - Fengqin Yan
- 2 Department of Radiation Oncology, Zhejiang Cancer Hospital , Hangzhou, People's Republic of China
| | - Yang Yang
- 2 Department of Radiation Oncology, Zhejiang Cancer Hospital , Hangzhou, People's Republic of China
| | - Linfa Li
- 1 Department of Nuclear Medicine, Zhejiang Cancer Hospital , Hangzhou, People's Republic of China
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Zhang J, Sun Y, Zhang X, Long B, Lu Y, Li X. Treatment of High-Risk Acute Myeloid Leukemia With Cladribine, Cytarabine, Mitoxantrone, and Granulocyte Colony-Stimulating Factor Then Subsequent Bridging to Myeloablative Allogeneic Hematopoietic Stem Cell Transplantation: A Case Series. Transplant Proc 2018; 50:246-249. [DOI: 10.1016/j.transproceed.2017.11.019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2017] [Accepted: 11/03/2017] [Indexed: 01/15/2023]
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Yi H, Ye T, Ge M, Yang M, Zhang L, Jin S, Ye X, Long B, Li L. Inhibition of autophagy enhances the targeted therapeutic effect of sorafenib in thyroid cancer. Oncol Rep 2017; 39:711-720. [PMID: 29207150 DOI: 10.3892/or.2017.6118] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2017] [Accepted: 11/23/2017] [Indexed: 11/06/2022] Open
Abstract
The multi-target kinase inhibitor sorafenib has been approved for the treatment of patients with advanced differentiated thyroid cancer. However, different sensitivities to sorafenib have been observed, and few patients have benefited from sorafenib treatment in the long term. In the event of acquired resistance to sorafenib it is not beneficial to continue treatment in most patients. Autophagy can be induced in a variety of cancer treatments and plays an important role in cancer treatment. The role of autophagy in sorafenib treatment of thyroid cancer has not been fully demonstrated. The present study investigated whether autophagy is activated by sorafenib during the treatment of thyroid cancer, examined the underlying mechanisms, and explored potential strategies to enhance the therapeutic sensitivity of sorafenib. Chloroquine (CQ) is an autophagy inhibitor that has been reported to increase sensitivity to various cancer treatments. Thyroid cancer xenograft model mice were treated with sorafenib, CQ, or a combination of sorafenib and CQ. We observed that CQ or sorafenib treatment suppressed tumor growth, while mice treated with the combination of sorafenib and CQ displayed significantly reduced tumor growth compared with those treated with sorafenib or CQ alone. Western blotting results indicated that sorafenib concurrently inhibited the activities of the MAPK and AKT/mTOR pathways in thyroid cancer. Autophagy was activated by sorafenib in thyroid cancer, both in vitro and in vivo, which was at least in part due to suppression of the AKT/mTOR pathway. Combination treatment including CQ could inhibit the autophagic flux induced by sorafenib. Silencing the key autophagy gene ATG5 using small interfering RNA also increased the anticancer effect of sorafenib. In summary, the present study revealed that inhibition of autophagy enhances the anticancer effect of sorafenib, and the combination of CQ with sorafenib treatment represents a potential therapeutic strategy for treating advanced differentiated thyroid cancer.
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Affiliation(s)
- Heqing Yi
- Department of Nuclear Medicine, Zhejiang Cancer Hospital, Hangzhou, Zhejiang 310021, P.R. China
| | - Ting Ye
- Department of Nuclear Medicine, Zhejiang Cancer Hospital, Hangzhou, Zhejiang 310021, P.R. China
| | - Minghua Ge
- Department of Head and Neck Surgery, Zhejiang Cancer Hospital, Hangzhou, Zhejiang 310021, P.R. China
| | - Mengdi Yang
- Department of Nuclear Medicine, Zhejiang Cancer Hospital, Hangzhou, Zhejiang 310021, P.R. China
| | - Lijun Zhang
- Department of Nuclear Medicine, Zhejiang Cancer Hospital, Hangzhou, Zhejiang 310021, P.R. China
| | - Shui Jin
- Department of Nuclear Medicine, Zhejiang Cancer Hospital, Hangzhou, Zhejiang 310021, P.R. China
| | - Xuemei Ye
- Department of Nuclear Medicine, Zhejiang Cancer Hospital, Hangzhou, Zhejiang 310021, P.R. China
| | - Bin Long
- Department of Nuclear Medicine, Zhejiang Cancer Hospital, Hangzhou, Zhejiang 310021, P.R. China
| | - Linfa Li
- Department of Nuclear Medicine, Zhejiang Cancer Hospital, Hangzhou, Zhejiang 310021, P.R. China
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Niu RX, He JY, Long B, Wang DQ, Song H, Wang C, Qu GM. Adsorption, wetting, foaming, and emulsification properties of mixtures of nonylphenol dodecyl sulfonate based on linear alpha-olefin and heavy alkyl benzene sulfonate. J DISPER SCI TECHNOL 2017. [DOI: 10.1080/01932691.2017.1383267] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- R. X. Niu
- Heilongjiang Provincial Key Laboratory Oil & Gas Chemical Technology, College of Chemistry & Chemical Engineering, Northeast Petroleum University, Daqing, Heilongjiang, China
| | - J. Y. He
- Heilongjiang Provincial Key Laboratory Oil & Gas Chemical Technology, College of Chemistry & Chemical Engineering, Northeast Petroleum University, Daqing, Heilongjiang, China
| | - B. Long
- Heilongjiang Provincial Key Laboratory Oil & Gas Chemical Technology, College of Chemistry & Chemical Engineering, Northeast Petroleum University, Daqing, Heilongjiang, China
| | - D. Q. Wang
- Heilongjiang Provincial Key Laboratory Oil & Gas Chemical Technology, College of Chemistry & Chemical Engineering, Northeast Petroleum University, Daqing, Heilongjiang, China
| | - H. Song
- Heilongjiang Provincial Key Laboratory Oil & Gas Chemical Technology, College of Chemistry & Chemical Engineering, Northeast Petroleum University, Daqing, Heilongjiang, China
| | - C. Wang
- Heilongjiang Provincial Key Laboratory Oil & Gas Chemical Technology, College of Chemistry & Chemical Engineering, Northeast Petroleum University, Daqing, Heilongjiang, China
| | - G. M. Qu
- Heilongjiang Provincial Key Laboratory Oil & Gas Chemical Technology, College of Chemistry & Chemical Engineering, Northeast Petroleum University, Daqing, Heilongjiang, China
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Wang F, Jiang C, Ye Z, Sun Q, Liu T, Xu M, Wu P, Shi K, Long B, Rihito A, Masoto S, Fu Z. Efficacy and safety of nimotuzumab with neoadjuvant chemotherapy followed by concurrent chemoradiotherapy for locoregionally advanced nasopharyngeal carcinoma. Oncotarget 2017; 8:75544-75556. [PMID: 29088889 PMCID: PMC5650444 DOI: 10.18632/oncotarget.17357] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [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: 01/28/2017] [Accepted: 04/11/2017] [Indexed: 11/25/2022] Open
Abstract
We assessed the efficacy and safety of nimotuzumab plus neoadjuvant chemotherapy followed by concurrent chemoradiotherapy for Chinese patients with locoregionally advanced nasopharyngeal carcinoma. Clinical data from 210 nonmetastatic nasopharyngeal carcinoma patients diagnosed between May 2008 and April 2014 were retrospectively reviewed. All patients were initially treated with nimotuzumab plus neoadjuvant chemotherapy followed by concurrent chemoradiotherapy. Ninety-five patients received cisplatin-based adjuvant chemotherapy. The median follow-up duration was 48 months. Locoregional relapse and distant metastases occurred in 16 patients (16/210, 7.6%) and 18 patients (18/210, 8.6%), respectively. The 5-year local recurrence-free survival, regional recurrence-free survival, distant metastases-free survival, progression-free survival, and overall survival rates were 95.6%, 94.4%, 91.7%, 84.0%, and 88.7%, respectively. Univariate analysis revealed that concurrent chemotherapy regimens and clinical stage correlated with overall survival, and that adjuvant chemotherapy, N stage, clinical stage, and tumor response at the end of treatment were correlated with progression-free survival. In the multivariate analysis, concurrent chemotherapy regimens, clinical stage, and tumor response were important prognosticators. Grade 3/4 leukocytopenia was experienced by 24 patients (11.4%), and 6 patients (2.9%) developed mild liver damage during the period of neoadjuvant chemotherapy. Grade 3/4 acute mucositis was experienced by 13 patients (6.2%), and 12 patients (5.7%) experienced grade 3/4 leukocytopenia during the concurrent chemotherapy. The efficacy of nimotuzumab plus neoadjuvant chemotherapy followed by concurrent chemotherapy in locoregionally advanced nasopharyngeal carcinoma patients was encouraging and the toxicities were tolerable.
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Affiliation(s)
- Fangzheng Wang
- Department of Radiation Oncology, Zhejiang Cancer Hospital, Zhejiang Hangzhou, People's Republic of China.,Zhejiang Key Laboratory of Radiation Oncology, Zhejiang Hangzhou, People's Republic of China
| | - Chuner Jiang
- Department of Breast Tumor Surgery, Zhejiang Cancer Hospital, Zhejiang Hangzhou, People's Republic of China
| | - Zhimin Ye
- Department of Radiation Oncology, Zhejiang Cancer Hospital, Zhejiang Hangzhou, People's Republic of China.,Zhejiang Key Laboratory of Radiation Oncology, Zhejiang Hangzhou, People's Republic of China
| | - Quanquan Sun
- Department of Radiation Oncology, Zhejiang Cancer Hospital, Zhejiang Hangzhou, People's Republic of China.,Zhejiang Key Laboratory of Radiation Oncology, Zhejiang Hangzhou, People's Republic of China
| | - Tongxin Liu
- Department of Radiation Oncology, Zhejiang Cancer Hospital, Zhejiang Hangzhou, People's Republic of China.,Zhejiang Key Laboratory of Radiation Oncology, Zhejiang Hangzhou, People's Republic of China
| | - Min Xu
- Department of Physics, Zhejiang Cancer Hospital, Zhejiang Hangzhou, People's Republic of China
| | - Peng Wu
- Department of Pathology, Zhejiang Cancer Hospital, Zhejiang Hangzhou, People's Republic of China
| | - Kaiyuan Shi
- Department of Ultrasonography, Zhejiang Cancer Hospital, Zhejiang Hangzhou, People's Republic of, China
| | - Bin Long
- Department of Nuclear Medicine, Zhejiang Cancer Hospital, Zhejiang Hangzhou, People's Republic of China
| | - Aizawa Rihito
- Department of Radiology, Japanese Red Cross Fukui Hospital, Fukui, Japan
| | - Sakamoto Masoto
- Department of Radiology, Japanese Red Cross Fukui Hospital, Fukui, Japan
| | - Zhenfu Fu
- Department of Radiation Oncology, Zhejiang Cancer Hospital, Zhejiang Hangzhou, People's Republic of China.,Zhejiang Key Laboratory of Radiation Oncology, Zhejiang Hangzhou, People's Republic of China
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Shu XL, Fan CB, Long B, Zhou X, Wang Y. The anti-cancer effects of cisplatin on hepatic cancer are associated with modulation of miRNA-21 and miRNA-122 expression. Eur Rev Med Pharmacol Sci 2016; 20:4459-4465. [PMID: 27874954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
OBJECTIVE Cisplatin is an effective chemotherapeutic drug to treat hepatic cancer, but its efficacy is marred by extensive adverse effects. Micro (mi) RNAs are small regulatory RNAs that may be used as molecular targets to better fine-tune chemotherapy in hepatic cancer. In this study, we examined to what extent the anti-cancer effects of cisplatin are associated with expressions of miRNA (miR)-21 and miR-122. MATERIALS AND METHODS The growth-inhibiting effects of cisplatin on the human hepatic cell line HepG2 were assessed by MTT assay, while cell apoptosis was documented using DAPI staining. Also, we tested the effects of cisplatin on tumour growth in a mouse tumour xenograft model. Finally, we quantified expression levels of miR-21 and miR-122 in cisplatin-treated HepG2 cells. RESULTS We observed that cisplatin significantly decreased the growth of HepG2 cells (p < 0.05 vs control cells) at all tested concentration (5-80 µg/ml) after 24 or 48 hours of treatment. Microscopic studies demonstrated apoptotic signs in cisplatin-treated cells. In the mouse tumour xenograft model, tumour weights and volumes were significantly (p < 0.05 untreated animals) lower after treatment with cisplatin. Also, treatment of HepG2 cells for 48 hours with 20 µg/ml cisplatin was associated with significant decreases in miR-21 expression levels and up-regulation of miR-122. CONCLUSIONS The anti-cancer effects of cisplatin are associated with down-regulation of miR-21 expression and up-regulation of miR-122.
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Affiliation(s)
- X-L Shu
- Department of Radiation Oncology, Chongqing Cancer Institute, Chongqing, China.
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