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Tian Y, Guo D, Zheng L, Yang S, Zhang N, Fu W, Li Z. Electrochemical Radical Tandem Difluoroethylation/Cyclization of Unsaturated Amides to Access MeCF 2-Featured Indolo/Benzoimidazo [2,1- a]Isoquinolin-6(5 H)-ones. Molecules 2024; 29:973. [PMID: 38474485 DOI: 10.3390/molecules29050973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 02/15/2024] [Accepted: 02/19/2024] [Indexed: 03/14/2024] Open
Abstract
A metal-free electrochemical oxidative difluoroethylation of 2-arylbenzimidazoles was accomplished, which provided an efficient strategy for the synthesis of MeCF2-containing benzo[4,5]imidazo[2,1-a]-isoquinolin-6(5H)-ones. In addition, the method also enabled the efficient construction of various difluoroethylated indolo[2,1-a]isoquinolin-6(5H)-ones. Notably, this electrochemical synthesis protocol proceeded well under mild conditions without metal catalysts or exogenous additives/oxidants added.
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Affiliation(s)
- Yunfei Tian
- Key Laboratory of Fuction-Oriented Porous Materials of Henan Province, College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471934, China
| | - Dongyu Guo
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, State Key Laboratory of New Pharmaceutical Preparations and Excipients, Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry & Materials Science, Hebei University, Baoding 071002, China
| | - Luping Zheng
- Key Laboratory of Fuction-Oriented Porous Materials of Henan Province, College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471934, China
| | - Shaolu Yang
- Key Laboratory of Fuction-Oriented Porous Materials of Henan Province, College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471934, China
| | - Ningning Zhang
- Key Laboratory of Fuction-Oriented Porous Materials of Henan Province, College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471934, China
| | - Weijun Fu
- Key Laboratory of Fuction-Oriented Porous Materials of Henan Province, College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471934, China
| | - Zejiang Li
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, State Key Laboratory of New Pharmaceutical Preparations and Excipients, Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry & Materials Science, Hebei University, Baoding 071002, China
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Liu L, Cai S, Chen A, Dong Y, Zhou L, Li L, Zhang Z, Hu Z, Zhang Z, Xiong Y, Hu Z, Li Y, Lu M, Wu L, Zheng L, Ding L, Fan X, Yao Y. Long-term prognostic value of thyroid hormones in left ventricular noncompaction. J Endocrinol Invest 2024:10.1007/s40618-024-02311-8. [PMID: 38358462 DOI: 10.1007/s40618-024-02311-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Accepted: 01/11/2024] [Indexed: 02/16/2024]
Abstract
PURPOSE Thyroid function is closely related to the prognosis of cardiovascular diseases. This study aimed to explore the predictive value of thyroid hormones for adverse cardiovascular outcomes in left ventricular noncompaction (LVNC). METHODS This longitudinal cohort study enrolled 388 consecutive LVNC patients with complete thyroid function profiles and comprehensive cardiovascular assessment. Potential predictors for adverse outcomes were thoroughly evaluated. RESULTS Over a median follow-up of 5.22 years, primary outcome (the combination of cardiovascular mortality and heart transplantation) occurred in 98 (25.3%) patients. For secondary outcomes, 75 (19.3%) patients died and 130 (33.5%) patients experienced major adverse cardiovascular events (MACE). Multivariable Cox analysis identified that free triiodothyronine (FT3) was independently associated with both primary (HR 0.455, 95%CI 0.313-0.664) and secondary (HR 0.547, 95%CI 0.349-0.858; HR 0.663, 95%CI 0.475-0.925) outcomes. Restricted cubic spline analysis illustrated that the risk for adverse outcomes increased significantly with the decline of serum FT3. The LVNC cohort was further stratified according to tertiles of FT3 levels. Individuals with lower FT3 levels in the tertile 1 group suffered from severe cardiac dysfunction and remodeling, resulting in higher incidence of mortality and MACE (Log-rank P < 0.001). Subgroup analysis revealed that lower concentration of FT3 was linked to worse prognosis, particularly for patients with left atrial diameter ≥ 40 mm or left ventricular ejection fraction ≤ 35%. Adding FT3 to the pre-existing risk score for MACE in LVNC improved its predictive performance. CONCLUSION Through the long-term investigation on a large LVNC cohort, we demonstrated that low FT3 level was an independent predictor for adverse cardiovascular outcomes.
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Affiliation(s)
- L Liu
- Cardiac Arrhythmia Center, Fuwai Hospital, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, National Clinical Research Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, 167 Beilishi Road, Xicheng District, Beijing, 100037, China
| | - S Cai
- Cardiac Arrhythmia Center, Heart Center, The People's Hospital of Zhengzhou University, Henan Provincial People's Hospital, Huazhong Fuwai Hospital, Zhengzhou, Henan, China
| | - A Chen
- Cardiac Arrhythmia Center, Fuwai Hospital, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, National Clinical Research Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, 167 Beilishi Road, Xicheng District, Beijing, 100037, China
| | - Y Dong
- Cardiac Arrhythmia Center, Fuwai Hospital, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, National Clinical Research Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, 167 Beilishi Road, Xicheng District, Beijing, 100037, China
| | - L Zhou
- Cardiac Arrhythmia Center, Fuwai Hospital, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, National Clinical Research Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, 167 Beilishi Road, Xicheng District, Beijing, 100037, China
| | - L Li
- Cardiac Arrhythmia Center, Fuwai Hospital, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, National Clinical Research Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, 167 Beilishi Road, Xicheng District, Beijing, 100037, China
| | - Z Zhang
- Cardiac Arrhythmia Center, Fuwai Hospital, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, National Clinical Research Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, 167 Beilishi Road, Xicheng District, Beijing, 100037, China
| | - Z Hu
- Cardiac Arrhythmia Center, Fuwai Hospital, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, National Clinical Research Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, 167 Beilishi Road, Xicheng District, Beijing, 100037, China
| | - Z Zhang
- Cardiac Arrhythmia Center, Fuwai Hospital, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, National Clinical Research Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, 167 Beilishi Road, Xicheng District, Beijing, 100037, China
| | - Y Xiong
- Cardiac Arrhythmia Center, Fuwai Hospital, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, National Clinical Research Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, 167 Beilishi Road, Xicheng District, Beijing, 100037, China
| | - Z Hu
- Cardiac Arrhythmia Center, Fuwai Hospital, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, National Clinical Research Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, 167 Beilishi Road, Xicheng District, Beijing, 100037, China
| | - Y Li
- Department of Echocardiography, Fuwai Hospital, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - M Lu
- Department of Magnetic Resonance Imaging, Fuwai Hospital, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - L Wu
- Cardiac Arrhythmia Center, Fuwai Hospital, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, National Clinical Research Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, 167 Beilishi Road, Xicheng District, Beijing, 100037, China
| | - L Zheng
- Cardiac Arrhythmia Center, Fuwai Hospital, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, National Clinical Research Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, 167 Beilishi Road, Xicheng District, Beijing, 100037, China
| | - L Ding
- Cardiac Arrhythmia Center, Fuwai Hospital, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, National Clinical Research Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, 167 Beilishi Road, Xicheng District, Beijing, 100037, China
| | - X Fan
- Cardiac Arrhythmia Center, Fuwai Hospital, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, National Clinical Research Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, 167 Beilishi Road, Xicheng District, Beijing, 100037, China
| | - Y Yao
- Cardiac Arrhythmia Center, Fuwai Hospital, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, National Clinical Research Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, 167 Beilishi Road, Xicheng District, Beijing, 100037, China.
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Xu Z, Gao Y, Teng K, Ge H, Zhang X, Wu M, Li R, Wu Z, Zheng L. Identification and Genome Characterization of a Novel Virus within the Genus Totivirus from Chinese Bayberry ( Myrica rubra). Viruses 2024; 16:283. [PMID: 38400058 PMCID: PMC10893191 DOI: 10.3390/v16020283] [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: 01/08/2024] [Revised: 02/08/2024] [Accepted: 02/09/2024] [Indexed: 02/25/2024] Open
Abstract
Chinese bayberry (Myrica rubra) is an economically significant fruit tree native to eastern Asia and widely planted in south-central China. However, studies about the viruses infecting M. rubra remain largely lacking. In the present study, we employed the metatranscriptomic method to identify viruses in M. rubra leaves exhibiting yellowing and irregular margin symptoms collected in Fuzhou, a city located in China's Fujian province in the year 2022. As a consequence, a novel member of the genus Totivirus was identified and tentatively named "Myrica rubra associated totivirus 1" (MRaTV1). The genome sequencing of MRaTV1 was determined by overlapping reverse transcription polymerase chain reaction (RT-PCR) and rapid amplification of cDNA ends (RACE). The two deduced proteins encoded by MRaTV1 have the highest amino acid (aa) sequence identity to the coat protein (CP) and RNA-dependent RNA polymerase (RdRP) of Panax notoginseng virus A (PNVA), a member of the genus Totivirus within the family Totiviridae, at 49.7% and 61.7%, respectively. According to the results of the phylogenetic tree and the species demarcation criteria of the International Committee on Taxonomy of Viruses (ICTV) for the genus Totivirus, MRaTV1 is considered a new member of the genus Totivirus.
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Affiliation(s)
- Zhongtian Xu
- Institute of Plant Virology, College of Plant Protection, Fujian Agriculture and Forestry University, Fujian 350002, China
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Plant Virology, Ningbo University, Ningbo 315211, China
| | - Yi'nan Gao
- Institute of Plant Virology, College of Plant Protection, Fujian Agriculture and Forestry University, Fujian 350002, China
| | - Kun Teng
- Institute of Plant Virology, College of Plant Protection, Fujian Agriculture and Forestry University, Fujian 350002, China
| | - Huoyang Ge
- Institute of Plant Virology, College of Plant Protection, Fujian Agriculture and Forestry University, Fujian 350002, China
| | - Xiaoqi Zhang
- Institute of Plant Virology, College of Plant Protection, Fujian Agriculture and Forestry University, Fujian 350002, China
| | - Mengjing Wu
- Institute of Plant Virology, College of Plant Protection, Fujian Agriculture and Forestry University, Fujian 350002, China
| | - Ruhui Li
- USDA-ARS, National Germplasm Resources Laboratory, Beltsville, MD 20705, USA
| | - Zujian Wu
- Institute of Plant Virology, College of Plant Protection, Fujian Agriculture and Forestry University, Fujian 350002, China
| | - Luping Zheng
- Institute of Plant Virology, College of Plant Protection, Fujian Agriculture and Forestry University, Fujian 350002, China
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Zheng L, Wu X, Liu Y. [Current prevalence and control strategies of visceral leishmaniasis in Sichuan Province: A review]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2024; 35:646-650. [PMID: 38413028 DOI: 10.16250/j.32.1374.2023150] [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] [Subscribe] [Scholar Register] [Indexed: 02/29/2024]
Abstract
Visceral leishmaniasis is a parasitic disease transmitted by Phlebotomus chinensis that poses a great threat to human health. Historically, visceral leishmaniasis was predominantly prevalent in northwestern regions of Sichuan Province. Following the founding of the People's Republic of China, large-scale integrated interventions had been implemented in visceral leishmaniasis-endemic areas of Sichuan Province, including identification and treatment of visceral leishmaniasis patients, elimination of infected dogs, Ph. chinensis control and health education. This review summarizes the prevalence of visceral leishmaniasis, discusses the control strategy of visceral leishmaniasis and analyzes the challenges of elimination of visceral leishmaniasis based on the One Health concept in Sichuan Province, so as to provide insights into elimination of visceral leishmaniasis in the province.
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Affiliation(s)
- L Zheng
- School of Public Health, Chengdu Medical College, Chengdu, Sichuan 610500, China
| | - X Wu
- Sichuan Provincial Center for Disease Control and Prevention, Chengdu, Sichuan 610041, China
| | - Y Liu
- Sichuan Provincial Center for Disease Control and Prevention, Chengdu, Sichuan 610041, China
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Qi XT, Wang H, Zhu DG, Zheng L, Cheng X, Zhang RJ, Dong HL. Global trends in coronary artery disease and artificial intelligence relevant studies: a bibliometric analysis. Eur Rev Med Pharmacol Sci 2024; 28:1-22. [PMID: 38235855 DOI: 10.26355/eurrev_202401_34886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/19/2024]
Abstract
OBJECTIVE Coronary artery disease (CAD) is a major global cause of death, greatly affecting life expectancy and quality of life for populations. With the advent of artificial intelligence (AI), there is new hope for accurately managing CAD. While recent studies have shown remarkable progress in AI and CAD research, there is a gap in comprehensive bibliometric analysis in this field. Therefore, this study aims to provide a thorough analysis of trends and hotspots in AI and CAD-related research utilizing bibliometrics. MATERIALS AND METHODS Publications on AI and CAD relevant research from 2009 to 2023 were searched through the WoS core database (WoSCC). CiteSpace, VOSviewer and Excel 365 were used to conduct the bibliometric analysis. RESULTS The bibliometric analysis included 1,248 publications, indicating a steady increase in AI and CAD-related publications annually. The United States of America (USA), China, and Germany were identified as the most influential countries in this field. Research institutions such as Cedars Sinai Med Ctr, Med Univ South Carolina, Harvard Med Sch and Capital Med Univ were the main contributors to research production. FRONT CARDIOVASC MED is the top-ranked journal, while J AM COLL CARDIOL emerged as the most cited journal. Schoepf, U. Joseph, Slomka, Piotr J., Berman, Daniel S. and Dey, Damini were the most prolific authors, while U. Rajendra Acharya was the most frequently co-cited author. Research related to the AI calculation of coronary flow reserve fraction and coronary artery calcification, based on coronary CT to identify CAD and cardiovascular risk, was a key research topic in this field. The potential link between cardiovascular risk stratification and radiomics is currently at the forefront of the field. CONCLUSIONS This study is the first to use a bibliometric approach to visualize and analyze AI and CAD-related research. The findings provide insights into recent research trends and hotspots in the field and can serve as a reference for scholars to identify critical issues in this field.
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Affiliation(s)
- X-T Qi
- Department of Vascular Surgery, The Second Hospital of Shanxi Medical University, Taiyuan, China.
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Tan Q, Zhu J, Ju Y, Chi X, Cao T, Zheng L, Chen Q. Antiviral Activity of Ailanthone from Ailanthus altissima on the Rice Stripe Virus. Viruses 2023; 16:73. [PMID: 38257773 PMCID: PMC10820994 DOI: 10.3390/v16010073] [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: 11/27/2023] [Revised: 12/24/2023] [Accepted: 12/29/2023] [Indexed: 01/24/2024] Open
Abstract
Rice stripe disease caused by the rice stripe virus (RSV), which infects many Poaceae species in nature, is one of the most devastating plant viruses in rice that causes enormous losses in production. Ailanthone is one of the typical C20 quassinoids synthesized by the secondary metabolism of Ailanthus altissima, which has been proven to be a biologically active natural product with promising prospects and great potential for use as a lead structure for pesticide development. Based on the achievement of the systemic infection and replication of RSV in Nicotiana benthamiana plants and rice protoplasts, the antiviral properties of Ailanthone were investigated by determining its effects on viral-coding RNA gene expression using reverse transcription polymerase chain reaction, and Western blot analysis. Ailanthone exhibited a dose-dependent inhibitory effect on RSV NSvc3 expression in the assay in both virus-infected tobacco plants and rice protoplasts. Further efforts revealed a potent inhibitory effect of Ailanthone on the expression of seven RSV protein-encoding genes, among which NS3, NSvc3, NS4, and NSvc4 are the most affected genes. These facts promoted an extended and greater depth of understanding of the antiviral nature of Ailanthone against plant viruses, in addition to the limited knowledge of its anti-tobacco mosaic virus properties. Moreover, the leaf disc method introduced and developed in the study for the detection of the antiviral activity of Ailanthone facilitates an available and convenient screening method for anti-RSV natural products or synthetic chemicals.
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Affiliation(s)
- Qingwei Tan
- Key Laboratory of Biopesticide and Chemical Biology, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (J.Z.); (Y.J.); (X.C.); (T.C.); (L.Z.)
- Institute of Plant Virus Research, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Jianxuan Zhu
- Key Laboratory of Biopesticide and Chemical Biology, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (J.Z.); (Y.J.); (X.C.); (T.C.); (L.Z.)
| | - Yuanyuan Ju
- Key Laboratory of Biopesticide and Chemical Biology, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (J.Z.); (Y.J.); (X.C.); (T.C.); (L.Z.)
| | - Xinlin Chi
- Key Laboratory of Biopesticide and Chemical Biology, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (J.Z.); (Y.J.); (X.C.); (T.C.); (L.Z.)
| | - Tangdan Cao
- Key Laboratory of Biopesticide and Chemical Biology, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (J.Z.); (Y.J.); (X.C.); (T.C.); (L.Z.)
| | - Luping Zheng
- Key Laboratory of Biopesticide and Chemical Biology, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (J.Z.); (Y.J.); (X.C.); (T.C.); (L.Z.)
- Institute of Plant Virus Research, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Qijian Chen
- Key Laboratory of Biopesticide and Chemical Biology, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (J.Z.); (Y.J.); (X.C.); (T.C.); (L.Z.)
- Institute of Plant Virus Research, Fujian Agriculture and Forestry University, Fuzhou 350002, China
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Zheng L, Chopra A, Weiner J, Beule D, Dommisch H, Schaefer AS. miRNAs from Inflamed Gingiva Link Gene Signaling to Increased MET Expression. J Dent Res 2023; 102:1488-1497. [PMID: 37822091 PMCID: PMC10683346 DOI: 10.1177/00220345231197984] [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] [Indexed: 10/13/2023] Open
Abstract
Several array-based microRNA (miRNA) expression studies independently showed increased expression of miRNAs hsa-miR-130a-3p, -142-3p, -144-3p, -144-5p, -223-3p, -17-5p, and -30e-5p in gingiva affected by periodontal inflammation. We aimed to determine direct target genes and signaling pathways regulated by these miRNAs to identify processes relevant to gingival inflammatory responses and tissue homeostasis. We transfected miRNA mimics (mirVana) for each of the 7 miRNAs separately into human primary gingival fibroblasts cultured from 3 different donors. Following RNA sequencing, differential gene expression and second-generation gene set enrichment analyses were performed. miRNA inhibition and upregulation was validated at the transcript and protein levels using quantitative reverse transcriptase polymerase chain reaction, Western blotting, and reporter gene assays. All 7 miRNAs significantly increased expression of the gene MET proto-oncogene, receptor tyrosine kinase (MET). Expression of known periodontitis risk genes CPEB1, ABCA1, and ATP6V1C1 was significantly repressed by hsa-miR-130a-3p, -144-3p, and -144-5p, respectively. The genes WASL, ENPP5, ARL6IP1, and IDH1 showed the most significant and strongest downregulation after hsa-miR-142-3p, -17-5p, -223-3p, and -30e-5p transfection, respectively. The most significantly regulated gene set of each miRNA related to cell cycle (hsa-miRNA-144-3p and -5p [Padj = 4 × 10-40 and Padj = 4 × 10-6], -miR-17-5p [Padj = 9.5 × 10-23], -miR-30e-5p [Padj = 8.2 × 10-18], -miR-130a-3p [Padj = 5 × 10-15]), integrin cell surface interaction (-miR-223-3p [Padj = 2.4 × 10-7]), and interferon signaling (-miR-142-3p [Padj = 5 × 10-11]). At the end of acute inflammation, gingival miRNAs bring together complex regulatory networks that lead to increased expression of the gene MET. This underscores the importance of mesenchymal cell migration and invasion during gingival tissue remodeling and proliferation in restoring periodontal tissue homeostasis after active inflammation. MET, a receptor of the mitogenic hepatocyte growth factor fibroblast secreted, is a core gene of this process.
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Affiliation(s)
- L. Zheng
- Department of Periodontology, Oral Medicine and Oral Surgery, Institute for Dental and Craniofacial Sciences, Charité–University Medicine Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - A. Chopra
- Department of Periodontology, Oral Medicine and Oral Surgery, Institute for Dental and Craniofacial Sciences, Charité–University Medicine Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - J. Weiner
- Core Unit Bioinformatics, Berlin Institute of Health, Berlin, Germany
| | - D. Beule
- Core Unit Bioinformatics, Berlin Institute of Health, Berlin, Germany
| | - H. Dommisch
- Department of Periodontology, Oral Medicine and Oral Surgery, Institute for Dental and Craniofacial Sciences, Charité–University Medicine Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - A. S. Schaefer
- Department of Periodontology, Oral Medicine and Oral Surgery, Institute for Dental and Craniofacial Sciences, Charité–University Medicine Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
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Abstract
Photoinduced silylation of silanes with 2-aryl-2H-indazoles was developed under mild conditions, which could efficiently result in diverse 3-silylated 2H-indazoles with good substrate scopes. A series of scaled-up to gram level and radical capture operations were performed in this system. Meanwhile, a bioactive molecule was tolerated well under typical conditions.
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Affiliation(s)
- Yunfei Tian
- College of Chemistry and Chemical Engineering, Key Laboratory of Fuction-Oriented Porous Materials of Henan Province, Luoyang Normal University, Luoyang, Henan 471934, P. R. China
| | - Luping Zheng
- College of Chemistry and Chemical Engineering, Key Laboratory of Fuction-Oriented Porous Materials of Henan Province, Luoyang Normal University, Luoyang, Henan 471934, P. R. China
| | - Dongyu Guo
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, State Key Laboratory of New Pharmaceutical Preparations and Excipients, College of Chemistry & Materials Science, and Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding, Hebei 071002, P. R. China
| | - Yuyan Miao
- College of Chemistry and Chemical Engineering, Key Laboratory of Fuction-Oriented Porous Materials of Henan Province, Luoyang Normal University, Luoyang, Henan 471934, P. R. China
| | - Lijun Li
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, State Key Laboratory of New Pharmaceutical Preparations and Excipients, College of Chemistry & Materials Science, and Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding, Hebei 071002, P. R. China
| | - Weijun Fu
- College of Chemistry and Chemical Engineering, Key Laboratory of Fuction-Oriented Porous Materials of Henan Province, Luoyang Normal University, Luoyang, Henan 471934, P. R. China
| | - Zejiang Li
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, State Key Laboratory of New Pharmaceutical Preparations and Excipients, College of Chemistry & Materials Science, and Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding, Hebei 071002, P. R. China
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Wang X, Zheng L, Zhang J, Zhang J. Evaluation of outcomes after conservative mandibular surgery in patients with oral squamous cell carcinoma. Int J Oral Maxillofac Surg 2023; 52:1111-1119. [PMID: 37271626 DOI: 10.1016/j.ijom.2023.05.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Revised: 05/05/2023] [Accepted: 05/11/2023] [Indexed: 06/06/2023]
Abstract
This study aimed to assess preoperative radiological and clinical examinations for identifying bone status and to evaluate survival outcomes in patients undergoing marginal mandibulectomy for the primary treatment of oral squamous cell carcinoma. The medical records, enhanced computed tomography (CT) scans, and pathological specimens of these patients were reviewed. Disease-free (DFS), local recurrence-free (LRFS), and osteoradionecrosis-free (ORNFS) survival were analysed. The study included 104 patients. The preoperative CT and clinical examinations achieved a sensitivity of 45.8% and specificity of 100% for judging bone condition. LRFS was 79.6% and DFS was 68.8%. Pathological bone invasion in significantly affected DFS (P = 0.597), while DFS was significantly higher for those with a lower clinical tumour stage (1/2 vs 3/4; P = 0.005) and postoperative radiotherapy (P = 0.011). Among 39 patients receiving postoperative radiotherapy, ORNFS was 75.2%. Postoperative chemotherapy significantly decreased ORNFS (P = 0.009). Tumour subsite (P = 0.003) and the resection site (P = 0.035) significantly affected the remaining bone height. The results indicate that CT and clinical examinations cannot precisely identify superficial bone damage, but work well in selecting patients for marginal resection. Adhering to current indications, this resection approach can guarantee safe bone margins in terms of survival outcomes.
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Affiliation(s)
- X Wang
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing, PR China
| | - L Zheng
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing, PR China.
| | - J Zhang
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing, PR China
| | - J Zhang
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing, PR China
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Wu ZH, Zheng L, Luo M. [Progress in clinical research on potential therapeutic drugs for acute-on-chronic liver failure]. Zhonghua Gan Zang Bing Za Zhi 2023; 31:1117-1120. [PMID: 38016784 DOI: 10.3760/cma.j.cn501113-20220625-00349] [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] [Subscribe] [Scholar Register] [Indexed: 11/30/2023]
Abstract
Acute-on-chronic liver failure (ACLF), has a high mortality rate and a poor prognosis. Currently, the only effective treatment for ACLF is liver transplantation. However, the number of patients who can successfully undergo liver transplantation is limited due to the rapid progression of ACLF, the occurrence of serious complications, and a dearth of liver donors. The available drug treatment indication expansion and pathogenesis exploration are expected to delay the progression of ACLF, reduce complications, and provide patients with opportunities for liver transplantation by improving portal vein pressure, inhibiting excessive inflammatory response, correcting energy metabolism disorders, reducing oxidative stress, resisting hepatic cell apoptosis, and promoting liver regeneration.
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Affiliation(s)
- Z H Wu
- Department of General Surgery, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200011, China
| | - L Zheng
- Department of General Surgery, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200011, China
| | - M Luo
- Department of General Surgery, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200011, China
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11
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Wang J, Lin T, Reddy AV, Hill C, Sehgal S, McPhaul T, Herman JM, He J, Zheng L, Meyer JJ, Narang A. Pathway Mutations are Associated with Clinical Outcomes in Localized Pancreatic Cancer Treated with Neoadjuvant Chemoradiation Followed by Surgery. Int J Radiat Oncol Biol Phys 2023; 117:e348-e349. [PMID: 37785208 DOI: 10.1016/j.ijrobp.2023.06.2419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) The purpose of this study was to determine if mutations in biological pathways are associated with clinical outcomes in patients with localized pancreatic cancer who undergo neoadjuvant chemoradiation followed by surgical resection. MATERIALS/METHODS Patients treated with neoadjuvant chemoradiation followed by oncologic resection from 2015-2019 who also underwent next generation sequencing (NGS) of the primary tumor were included in this retrospective analysis. NGS was done using either Foundation One (n = 20), in-house Solid Tumor Panel (n = 121), or Tempus XT (n = 1). Genes were included in pathway analysis if at least one patient harbored a mutation in the gene. Pathways were defined from the Molecular Signatures Database Hallmark, KEGG, and Reactome gene sets. A pathway was deemed mutated if at least one gene within the pathway was mutated. Univariable Cox regression was performed to determine the association between pathway mutation status and overall survival (OS) as well as progression-free survival (PFS). RESULTS In total, 142 patients met criteria for study inclusion. For pathway analysis, 329 genes met inclusion criteria. Patients were typically treated with neoadjuvant chemotherapy (either 5-fluorouracil-based or gemcitabine-based) followed by radiation. Patients received SBRT (n = 104, most commonly 33 Gy in 5 fractions) or conventionally fractionated radiation (n = 38, most commonly 50.4 Gy in 28 fractions). For clinical variables, worse OS was significantly associated with T stage (p = 0.036), N stage (p = 0.044), and lymphovascular invasion (LVI, p = 0.011); worse PFS was significantly associated with T stage (p = 0.0008), N stage (p = 0.022), LVI (p = 0.026), and conventional RT (p = 0.007). Mutations in major pathways were associated with worse OS, notably hedgehog signaling (p = 0.001), chromatin modifying enzymes (p = 0.002), WNT/beta-catenin signaling (p = 0.005), mismatch repair (0.006), E2F targets (p = 0.008), FLT signaling (p = 0.012), VEGF signaling (0.025), innate immune system (p = 0.026), and NOTCH signaling (p = 0.029). Pathway mutations associated with worse PFS included mismatch repair (p = 0.007) and hedgehog signaling (p = 0.013). CONCLUSION For pancreatic cancer patients that undergo neoadjuvant chemoradiation followed by oncologic resection of the primary tumor, mutations in key biological pathways are associated with OS and PFS. Characterizing the importance of common pathway mutations may become increasingly valuable to help categorize less commonly mutated genes assayed by NGS.
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Affiliation(s)
- J Wang
- Department of Radiation Oncology and Molecular Radiation Sciences, Johns Hopkins University School of Medicine, Baltimore, MD
| | - T Lin
- Department of Radiation Oncology and Molecular Radiation Sciences, Johns Hopkins University School of Medicine, Baltimore, MD
| | - A V Reddy
- Department of Radiation Oncology and Molecular Radiation Sciences, Johns Hopkins University School of Medicine, Baltimore, MD
| | - C Hill
- Department of Radiation Oncology and Molecular Radiation Sciences, Johns Hopkins University School of Medicine, Baltimore, MD
| | - S Sehgal
- Johns Hopkins Medical Institute, Department of Radiation Oncology, Baltimore, MD
| | - T McPhaul
- Department of Medical Oncology, Johns Hopkins University School of Medicine, Baltimore, MD
| | - J M Herman
- Department of Radiation Medicine, Northwell Health Cancer Institute, New Hyde Park, NY
| | - J He
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD
| | - L Zheng
- Department of Medical Oncology, Johns Hopkins University School of Medicine, Baltimore, MD
| | - J J Meyer
- Department of Radiation Oncology and Molecular Radiation Sciences, Johns Hopkins University School of Medicine, Baltimore, MD
| | - A Narang
- Department of Radiation Oncology and Molecular Radiation Sciences, Johns Hopkins University School of Medicine, Baltimore, MD
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12
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Madan V, Lin TA, Reddy AV, Hill C, Sehgal S, Hacker-Prietz A, McPhaul T, He J, Zheng L, Ngwa W, Herman JM, Meyer JJ, Narang A. Characterization of DNA Damage Response-Associated Somatic Mutations in Borderline Resectable and Locally Advanced Pancreatic Cancer. Int J Radiat Oncol Biol Phys 2023; 117:e321. [PMID: 37785147 DOI: 10.1016/j.ijrobp.2023.06.2361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) The role of radiation for pancreatic cancer remains controversial, with recent studies showing conflicting results, highlighting the need to develop biomarkers of radiation response. Despite its potential utility in predicting radiosensitivity, the landscape of somatic mutations in borderline resectable pancreatic cancer (BRPC) and locally advanced pancreatic cancer (LAPC), as related to DNA damage response (DDR), has not been well characterized. This study aimed to characterize the frequency of such mutations in a cohort of patients with BRPC/LAPC treated with neoadjuvant chemotherapy and stereotactic body radiotherapy (SBRT). MATERIALS/METHODS Mutational data was collected from patients with BRPC/LAPC treated at a single institution with neoadjuvant chemotherapy and SBRT, followed by surgical resection from 2016-2021. Chemotherapy consisted of modified FOLFIRINOX or gemcitabine/nab-paclitaxel, and patients were treated with SBRT in 33 Gy in 5 fractions. Genomic data was obtained from either endoscopic biopsy or surgical specimens, and next-generation sequencing was performed either in-house with a Solid Tumor Panel or with FoundationOne CDx. Specific emphasis was placed on the characterization of double-strand DNA break (DSB) repair genes, as this is the type of tumor cell damage traditionally induced by radiation therapy. Genes associated with the two main pathways of DSB repair, non-homologous end joining (NHEJ) and homologous repair (HR), were analyzed. Specific HR pathway mutations assessed were BLM, BRCA1/2, MRE11, NBN, PALB2, RAD50, RAD51B-D, and RAD54L, while PRKDC mutations were assessed for the NHEJ pathway. Mutations in ATM, an important initiator of DDR pathways, were also analyzed. Additionally, the frequency of mutations in TP53, CDKN2A and SMAD4 in patients with concomitant KRAS mutations was assessed. RESULTS Eighty-five patients were included in the study. Five (5.9%) patients had mutations in the NHEJ pathway of the PRKDC gene. Twenty (23.5%) patients had mutations in the HR pathway, including BRCA2 (10/85; 11.8%), PALB2 (5/85; 5.9%), BRCA1 (3/85; 3.5%), and RAD50 (1/85; 1.2%). Six (7.1%) patients had mutations in ATM. No patients were found to have mutations in BLM, RAD51B-D, RAD54L, or NBN. Amongst patients with KRAS mutations (72/85), concomitant mutations were observed in TP53 (47/85; 55.3%), CDKN2A (16/85; 18.8%), and SMAD4 (9/85; 10.6%). CONCLUSION Herein, we characterized the frequency of somatic mutations associated with DSB repair genes in patients with BRPC/LAPC. Data analysis on outcomes related to radiation response in patients with mutations in DDR pathways is ongoing, but will likely also benefit from multi-institutional efforts to increase the power to answer this question.
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Affiliation(s)
- V Madan
- Johns Hopkins University School of Medicine, Baltimore, MD
| | - T A Lin
- The University of Texas MD Anderson Cancer Center, Houston, TX
| | - A V Reddy
- Department of Radiation Oncology and Molecular Radiation Sciences, Johns Hopkins University School of Medicine, Baltimore, MD
| | - C Hill
- Department of Radiation Oncology and Molecular Radiation Sciences, Johns Hopkins University School of Medicine, Baltimore, MD
| | - S Sehgal
- Johns Hopkins Medical Institute, Department of Radiation Oncology, Baltimore, MD
| | - A Hacker-Prietz
- Department of Radiation Oncology and Molecular Radiation Sciences, Johns Hopkins University School of Medicine, Baltimore, MD
| | - T McPhaul
- Department of Medical Oncology, Johns Hopkins University School of Medicine, Baltimore, MD
| | - J He
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD
| | - L Zheng
- Department of Medical Oncology, Johns Hopkins University School of Medicine, Baltimore, MD
| | - W Ngwa
- John Hopkins University Hospital, Baltimore, MD
| | - J M Herman
- Department of Radiation Medicine, Northwell Health Cancer Institute, New Hyde Park, NY
| | - J J Meyer
- Department of Radiation Oncology and Molecular Radiation Sciences, Johns Hopkins University School of Medicine, Baltimore, MD
| | - A Narang
- Department of Radiation Oncology and Molecular Radiation Sciences, Johns Hopkins University School of Medicine, Baltimore, MD
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13
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Zheng L, Zhang Y, Zhang Q, Wu DR, Shi LX. [A case of acromegaly complicated with Graves' disease]. Zhonghua Nei Ke Za Zhi 2023; 62:1227-1229. [PMID: 37766444 DOI: 10.3760/cma.j.cn112138-20230202-00051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 09/29/2023]
Affiliation(s)
- L Zheng
- Department of Endocrinology and Metabolism, Guiqian International General Hospital, Guiyang 550018, China
| | - Y Zhang
- Department of Endocrinology and Metabolism, Guiqian International General Hospital, Guiyang 550018, China
| | - Q Zhang
- Department of Endocrinology and Metabolism, Guiqian International General Hospital, Guiyang 550018, China
| | - D R Wu
- Department of Endocrinology and Metabolism, Guiqian International General Hospital, Guiyang 550018, China
| | - L X Shi
- Department of Endocrinology and Metabolism, Guiqian International General Hospital, Guiyang 550018, China
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14
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Hwang WL, Su J, Shiau C, Wang PL, Guo JA, Lester NA, Barth JL, Hoffman HI, Aguirre A, Hong TS, Wo JY, Ting D, Zheng L, Mino-Kenudson M, Jacks T. Molecular Mechanisms of Intratumoral Nerve Recruitment and Perineural Invasion Elucidated with Spatial Transcriptomics and CRISPR Activation. Int J Radiat Oncol Biol Phys 2023; 117:S21. [PMID: 37784453 DOI: 10.1016/j.ijrobp.2023.06.244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Perineural invasion (PNI) is an aggressive manifestation of tumor-nerve interactions associated with postoperative recurrence, metastasis, pain, and decreased survival. Hence, PNI is included in the staging criteria of several malignancies and often an indication for treatment intensification using adjuvant radiotherapy. However, the diverse molecular mechanisms underlying tumor-nerve crosstalk remain largely unknown-hindering the development of new therapies targeting this key pathological process. Moreover, prior studies were limited by a lack of cell-type information, spatial context, and/or a fragmented focus on a small number of pathways. MATERIALS/METHODS Using pancreatic ductal adenocarcinoma (PDAC) as an exemplar given the exceptionally high frequency of PNI in this malignancy, we performed the first comprehensive, cell-type specific, and spatially resolved whole-transcriptome analysis of human PDAC to identify molecular mediators of tumor-nerve crosstalk and PNI. We constructed 12 custom tissue microarrays (TMAs) derived from matched malignant regions with and without tumor-nerve proximity (n = 288 cores). We performed whole-transcriptome digital spatial profiling (DSP) to independently determine mRNA abundance from the malignant, fibroblast, and nerve compartments through optical sectioning. RESULTS We mapped malignant subtypes we previously identified onto the spatial data and found strong (p<0.0001) positive nerve associations with the mesenchymal, basaloid, and neural-like progenitor subtypes and a negative nerve association with the classical subtype. Numerous genes expressed by malignant cells were enriched (e.g., MMP2, PLXND1, NRP1) or depleted (e.g., SEMA3B) in association with radial distance from nerves, including recapitulation of prior literature. To functionally explore these candidate mediators of tumor-nerve crosstalk, we derived genetically-engineered murine organoids (KrasLSL-G12D/+; Trp53FL/FL; Rosa26-dCas9-VPR) and transduced them with guide RNAs to overexpress subtype-specific transcription factors or candidate genes from the spatial analysis. We quantified (1) cancer cell invasion through extracellular matrix using cultured dorsal root ganglia (DRG) sensory neurons as the chemoattractant, and (2) the role of cancer-intrinsic signaling on nerve recruitment/outgrowth by applying conditioned media or exogenous proteins to cultured DRG sensory neurons and tracking their growth with live imaging. CONCLUSION Our results suggest that the mechanisms enabling cancer cells to recruit nerves into the tumor microenvironment are distinct from those facilitating perineural invasion. This study has transformed our understanding of how cancer cells and the peripheral nervous system collaborate to promote tumor growth, survival, and dissemination, and is now guiding prioritization of therapeutic strategies that synergize with adjuvant radiotherapy in the burgeoning field of cancer neuroscience.
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Affiliation(s)
- W L Hwang
- Harvard Medical School / Massachusetts General Hospital, Boston, MA; Broad Institute of MIT and Harvard, Cambridge, MA
| | - J Su
- Massachusetts General Hospital, BOSTON, MA
| | - C Shiau
- Massachusetts General Hospital, Boston, MA
| | - P L Wang
- Massaschusetts General Hospital, Boston, MA
| | - J A Guo
- Broad Institute of MIT and Harvard, Cambridge, MA
| | - N A Lester
- Massaschusetts General Hospital, Boston, MA
| | - J L Barth
- Massaschusetts General Hospital, Boston, MA
| | | | - A Aguirre
- Dana-Farber Cancer Institute, Boston, MA
| | - T S Hong
- Department of Radiation Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - J Y Wo
- Newton-Wellesley Hospital, Newton, MA
| | - D Ting
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Boston, MA
| | - L Zheng
- Department of Medical Oncology, Johns Hopkins University School of Medicine, Baltimore, MD
| | | | - T Jacks
- Massachusetts Institute of Technology, Cambridge, MA
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15
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Albakry MF, Alkhatib I, Alonso D, Amaral DWP, Aralis T, Aramaki T, Arnquist IJ, Ataee Langroudy I, Azadbakht E, Banik S, Bathurst C, Bhattacharyya R, Brink PL, Bunker R, Cabrera B, Calkins R, Cameron RA, Cartaro C, Cerdeño DG, Chang YY, Chaudhuri M, Chen R, Chott N, Cooley J, Coombes H, Corbett J, Cushman P, Das S, De Brienne F, Rios M, Dharani S, di Vacri ML, Diamond MD, Elwan M, Fascione E, Figueroa-Feliciano E, Fink CW, Fouts K, Fritts M, Gerbier G, Germond R, Ghaith M, Golwala SR, Hall J, Harms SAS, Hassan N, Hines BA, Hong Z, Hoppe EW, Hsu L, Huber ME, Iyer V, Kashyap VKS, Kelsey MH, Kubik A, Kurinsky NA, Lee M, Litke M, Liu J, Liu Y, Loer B, Lopez Asamar E, Lukens P, MacFarlane DB, Mahapatra R, Mast N, Mayer AJ, Meyer Zu Theenhausen H, Michaud É, Michielin E, Mirabolfathi N, Mohanty B, Nebolsky B, Nelson J, Neog H, Novati V, Orrell JL, Osborne MD, Oser SM, Page WA, Pandey L, Pandey S, Partridge R, Pedreros DS, Perna L, Podviianiuk R, Ponce F, Poudel S, Pradeep A, Pyle M, Rau W, Reid E, Ren R, Reynolds T, Tanner E, Roberts A, Robinson AE, Saab T, Sadek D, Sadoulet B, Sahoo SP, Saikia I, Sander J, Sattari A, Schmidt B, Schnee RW, Scorza S, Serfass B, Poudel SS, Sincavage DJ, Sinervo P, Speaks Z, Street J, Sun H, Terry GD, Thasrawala FK, Toback D, Underwood R, Verma S, Villano AN, von Krosigk B, Watkins SL, Wen O, Williams Z, Wilson MJ, Winchell J, Wykoff K, Yellin S, Young BA, Yu TC, Zatschler B, Zatschler S, Zaytsev A, Zeolla A, Zhang E, Zheng L, Zheng Y, Zuniga A, An P, Barbeau PS, Hedges SC, Li L, Runge J. First Measurement of the Nuclear-Recoil Ionization Yield in Silicon at 100 eV. Phys Rev Lett 2023; 131:091801. [PMID: 37721818 DOI: 10.1103/physrevlett.131.091801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 07/07/2023] [Accepted: 07/26/2023] [Indexed: 09/20/2023]
Abstract
We measured the nuclear-recoil ionization yield in silicon with a cryogenic phonon-sensitive gram-scale detector. Neutrons from a monoenergetic beam scatter off of the silicon nuclei at angles corresponding to energy depositions from 4 keV down to 100 eV, the lowest energy probed so far. The results show no sign of an ionization production threshold above 100 eV. These results call for further investigation of the ionization yield theory and a comprehensive determination of the detector response function at energies below the keV scale.
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Affiliation(s)
- M F Albakry
- Department of Physics & Astronomy, University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada
- TRIUMF, Vancouver, British Columbia V6T 2A3, Canada
| | - I Alkhatib
- Department of Physics, University of Toronto, Toronto, Ontario M5S 1A7, Canada
| | - D Alonso
- Instituto de Física Teórica UAM/CSIC, Universidad Autónoma de Madrid, 28049 Madrid, Spain
- Instituto de Física Teórica UAM-CSIC, Campus de Cantoblanco, 28049 Madrid, Spain
| | - D W P Amaral
- Department of Physics, Durham University, Durham DH1 3LE, United Kingdom
| | - T Aralis
- Division of Physics, Mathematics, & Astronomy, California Institute of Technology, Pasadena, California 91125, USA
| | - T Aramaki
- Department of Physics, Northeastern University, 360 Huntington Avenue, Boston, Massachusetts 02115, USA
| | - I J Arnquist
- Pacific Northwest National Laboratory, Richland, Washington 99352, USA
| | - I Ataee Langroudy
- Department of Physics and Astronomy, and the Mitchell Institute for Fundamental Physics and Astronomy, Texas A&M University, College Station, Texas 77843, USA
| | - E Azadbakht
- Department of Physics and Astronomy, and the Mitchell Institute for Fundamental Physics and Astronomy, Texas A&M University, College Station, Texas 77843, USA
| | - S Banik
- School of Physical Sciences, National Institute of Science Education and Research, HBNI, Jatni - 752050, India
| | - C Bathurst
- Department of Physics, University of Florida, Gainesville, Florida 32611, USA
| | - R Bhattacharyya
- Department of Physics and Astronomy, and the Mitchell Institute for Fundamental Physics and Astronomy, Texas A&M University, College Station, Texas 77843, USA
| | - P L Brink
- SLAC National Accelerator Laboratory/Kavli Institute for Particle Astrophysics and Cosmology, Menlo Park, California 94025, USA
| | - R Bunker
- Pacific Northwest National Laboratory, Richland, Washington 99352, USA
| | - B Cabrera
- Department of Physics, Stanford University, Stanford, California 94305, USA
| | - R Calkins
- Department of Physics, Southern Methodist University, Dallas, Texas 75275, USA
| | - R A Cameron
- SLAC National Accelerator Laboratory/Kavli Institute for Particle Astrophysics and Cosmology, Menlo Park, California 94025, USA
| | - C Cartaro
- SLAC National Accelerator Laboratory/Kavli Institute for Particle Astrophysics and Cosmology, Menlo Park, California 94025, USA
| | - D G Cerdeño
- Instituto de Física Teórica UAM/CSIC, Universidad Autónoma de Madrid, 28049 Madrid, Spain
- Instituto de Física Teórica UAM-CSIC, Campus de Cantoblanco, 28049 Madrid, Spain
| | - Y-Y Chang
- Division of Physics, Mathematics, & Astronomy, California Institute of Technology, Pasadena, California 91125, USA
| | - M Chaudhuri
- School of Physical Sciences, National Institute of Science Education and Research, HBNI, Jatni - 752050, India
| | - R Chen
- Department of Physics & Astronomy, Northwestern University, Evanston, Illinois 60208-3112, USA
| | - N Chott
- Department of Physics, South Dakota School of Mines and Technology, Rapid City, South Dakota 57701, USA
| | - J Cooley
- Department of Physics, Southern Methodist University, Dallas, Texas 75275, USA
- SNOLAB, Creighton Mine #9, 1039 Regional Road 24, Sudbury, Ontario P3Y 1N2, Canada
| | - H Coombes
- Department of Physics, University of Florida, Gainesville, Florida 32611, USA
| | - J Corbett
- Department of Physics, Queen's University, Kingston, Ontario K7L 3N6, Canada
| | - P Cushman
- School of Physics & Astronomy, University of Minnesota, Minneapolis, Minnesota 55455, USA
| | - S Das
- School of Physical Sciences, National Institute of Science Education and Research, HBNI, Jatni - 752050, India
| | - F De Brienne
- Département de Physique, Université de Montréal, Montréal, Québec H3C 3J7, Canada
| | - M Rios
- Instituto de Física Teórica UAM/CSIC, Universidad Autónoma de Madrid, 28049 Madrid, Spain
- Instituto de Física Teórica UAM-CSIC, Campus de Cantoblanco, 28049 Madrid, Spain
| | - S Dharani
- Institute for Astroparticle Physics (IAP), Karlsruhe Institute of Technology (KIT), 76344 Eggenstein-Leopoldshafen, Germany
- Institut für Experimentalphysik, Universität Hamburg, 22761 Hamburg, Germany
| | - M L di Vacri
- Pacific Northwest National Laboratory, Richland, Washington 99352, USA
| | - M D Diamond
- Department of Physics, University of Toronto, Toronto, Ontario M5S 1A7, Canada
| | - M Elwan
- Department of Physics, University of Florida, Gainesville, Florida 32611, USA
| | - E Fascione
- TRIUMF, Vancouver, British Columbia V6T 2A3, Canada
- Department of Physics, Queen's University, Kingston, Ontario K7L 3N6, Canada
| | - E Figueroa-Feliciano
- Department of Physics & Astronomy, Northwestern University, Evanston, Illinois 60208-3112, USA
| | - C W Fink
- Department of Physics, University of California, Berkeley, California 94720, USA
| | - K Fouts
- SLAC National Accelerator Laboratory/Kavli Institute for Particle Astrophysics and Cosmology, Menlo Park, California 94025, USA
| | - M Fritts
- School of Physics & Astronomy, University of Minnesota, Minneapolis, Minnesota 55455, USA
| | - G Gerbier
- Department of Physics, Queen's University, Kingston, Ontario K7L 3N6, Canada
| | - R Germond
- TRIUMF, Vancouver, British Columbia V6T 2A3, Canada
- Department of Physics, Queen's University, Kingston, Ontario K7L 3N6, Canada
| | - M Ghaith
- College of Natural and Health Sciences, Zayed University, Dubai, 19282, United Arab Emirates
| | - S R Golwala
- Division of Physics, Mathematics, & Astronomy, California Institute of Technology, Pasadena, California 91125, USA
| | - J Hall
- SNOLAB, Creighton Mine #9, 1039 Regional Road 24, Sudbury, Ontario P3Y 1N2, Canada
- Laurentian University, Department of Physics, 935 Ramsey Lake Road, Sudbury, Ontario P3E 2C6, Canada
| | - S A S Harms
- Department of Physics, University of Toronto, Toronto, Ontario M5S 1A7, Canada
| | - N Hassan
- Département de Physique, Université de Montréal, Montréal, Québec H3C 3J7, Canada
| | - B A Hines
- Department of Physics, University of Colorado Denver, Denver, Colorado 80217, USA
| | - Z Hong
- Department of Physics, University of Toronto, Toronto, Ontario M5S 1A7, Canada
| | - E W Hoppe
- Pacific Northwest National Laboratory, Richland, Washington 99352, USA
| | - L Hsu
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - M E Huber
- Department of Physics, University of Colorado Denver, Denver, Colorado 80217, USA
- Department of Electrical Engineering, University of Colorado Denver, Denver, Colorado 80217, USA
| | - V Iyer
- Department of Physics, University of Toronto, Toronto, Ontario M5S 1A7, Canada
| | - V K S Kashyap
- School of Physical Sciences, National Institute of Science Education and Research, HBNI, Jatni - 752050, India
| | - M H Kelsey
- Department of Physics and Astronomy, and the Mitchell Institute for Fundamental Physics and Astronomy, Texas A&M University, College Station, Texas 77843, USA
| | - A Kubik
- SNOLAB, Creighton Mine #9, 1039 Regional Road 24, Sudbury, Ontario P3Y 1N2, Canada
| | - N A Kurinsky
- SLAC National Accelerator Laboratory/Kavli Institute for Particle Astrophysics and Cosmology, Menlo Park, California 94025, USA
| | - M Lee
- Department of Physics and Astronomy, and the Mitchell Institute for Fundamental Physics and Astronomy, Texas A&M University, College Station, Texas 77843, USA
| | - M Litke
- Department of Physics, Southern Methodist University, Dallas, Texas 75275, USA
| | - J Liu
- Department of Physics, Southern Methodist University, Dallas, Texas 75275, USA
| | - Y Liu
- Department of Physics & Astronomy, University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada
- TRIUMF, Vancouver, British Columbia V6T 2A3, Canada
| | - B Loer
- Pacific Northwest National Laboratory, Richland, Washington 99352, USA
| | - E Lopez Asamar
- Instituto de Física Teórica UAM/CSIC, Universidad Autónoma de Madrid, 28049 Madrid, Spain
- Instituto de Física Teórica UAM-CSIC, Campus de Cantoblanco, 28049 Madrid, Spain
| | - P Lukens
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - D B MacFarlane
- SLAC National Accelerator Laboratory/Kavli Institute for Particle Astrophysics and Cosmology, Menlo Park, California 94025, USA
| | - R Mahapatra
- Department of Physics and Astronomy, and the Mitchell Institute for Fundamental Physics and Astronomy, Texas A&M University, College Station, Texas 77843, USA
| | - N Mast
- School of Physics & Astronomy, University of Minnesota, Minneapolis, Minnesota 55455, USA
| | - A J Mayer
- TRIUMF, Vancouver, British Columbia V6T 2A3, Canada
| | - H Meyer Zu Theenhausen
- Institute for Astroparticle Physics (IAP), Karlsruhe Institute of Technology (KIT), 76344 Eggenstein-Leopoldshafen, Germany
| | - É Michaud
- Département de Physique, Université de Montréal, Montréal, Québec H3C 3J7, Canada
| | - E Michielin
- Department of Physics & Astronomy, University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada
- TRIUMF, Vancouver, British Columbia V6T 2A3, Canada
| | - N Mirabolfathi
- Department of Physics and Astronomy, and the Mitchell Institute for Fundamental Physics and Astronomy, Texas A&M University, College Station, Texas 77843, USA
| | - B Mohanty
- School of Physical Sciences, National Institute of Science Education and Research, HBNI, Jatni - 752050, India
| | - B Nebolsky
- Department of Physics & Astronomy, Northwestern University, Evanston, Illinois 60208-3112, USA
| | - J Nelson
- School of Physics & Astronomy, University of Minnesota, Minneapolis, Minnesota 55455, USA
| | - H Neog
- School of Physics & Astronomy, University of Minnesota, Minneapolis, Minnesota 55455, USA
| | - V Novati
- Department of Physics & Astronomy, Northwestern University, Evanston, Illinois 60208-3112, USA
| | - J L Orrell
- Pacific Northwest National Laboratory, Richland, Washington 99352, USA
| | - M D Osborne
- Department of Physics and Astronomy, and the Mitchell Institute for Fundamental Physics and Astronomy, Texas A&M University, College Station, Texas 77843, USA
| | - S M Oser
- Department of Physics & Astronomy, University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada
- TRIUMF, Vancouver, British Columbia V6T 2A3, Canada
| | - W A Page
- Department of Physics, University of California, Berkeley, California 94720, USA
| | - L Pandey
- Department of Physics, University of South Dakota, Vermillion, South Dakota 57069, USA
| | - S Pandey
- School of Physics & Astronomy, University of Minnesota, Minneapolis, Minnesota 55455, USA
| | - R Partridge
- SLAC National Accelerator Laboratory/Kavli Institute for Particle Astrophysics and Cosmology, Menlo Park, California 94025, USA
| | - D S Pedreros
- Département de Physique, Université de Montréal, Montréal, Québec H3C 3J7, Canada
| | - L Perna
- Department of Physics, University of Toronto, Toronto, Ontario M5S 1A7, Canada
| | - R Podviianiuk
- Department of Physics, University of South Dakota, Vermillion, South Dakota 57069, USA
| | - F Ponce
- Pacific Northwest National Laboratory, Richland, Washington 99352, USA
| | - S Poudel
- Department of Physics, University of South Dakota, Vermillion, South Dakota 57069, USA
| | - A Pradeep
- Department of Physics & Astronomy, University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada
- TRIUMF, Vancouver, British Columbia V6T 2A3, Canada
| | - M Pyle
- Department of Physics, University of California, Berkeley, California 94720, USA
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - W Rau
- TRIUMF, Vancouver, British Columbia V6T 2A3, Canada
| | - E Reid
- Department of Physics, Durham University, Durham DH1 3LE, United Kingdom
| | - R Ren
- Department of Physics & Astronomy, Northwestern University, Evanston, Illinois 60208-3112, USA
| | - T Reynolds
- Department of Physics, University of Toronto, Toronto, Ontario M5S 1A7, Canada
| | - E Tanner
- School of Physics & Astronomy, University of Minnesota, Minneapolis, Minnesota 55455, USA
| | - A Roberts
- Department of Physics, University of Colorado Denver, Denver, Colorado 80217, USA
| | - A E Robinson
- Département de Physique, Université de Montréal, Montréal, Québec H3C 3J7, Canada
| | - T Saab
- Department of Physics, University of Florida, Gainesville, Florida 32611, USA
| | - D Sadek
- Department of Physics, University of Florida, Gainesville, Florida 32611, USA
| | - B Sadoulet
- Department of Physics, University of California, Berkeley, California 94720, USA
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - S P Sahoo
- Department of Physics and Astronomy, and the Mitchell Institute for Fundamental Physics and Astronomy, Texas A&M University, College Station, Texas 77843, USA
| | - I Saikia
- Department of Physics, Southern Methodist University, Dallas, Texas 75275, USA
| | - J Sander
- Department of Physics, University of South Dakota, Vermillion, South Dakota 57069, USA
| | - A Sattari
- Department of Physics, University of Toronto, Toronto, Ontario M5S 1A7, Canada
| | - B Schmidt
- Department of Physics & Astronomy, Northwestern University, Evanston, Illinois 60208-3112, USA
| | - R W Schnee
- Department of Physics, South Dakota School of Mines and Technology, Rapid City, South Dakota 57701, USA
| | - S Scorza
- SNOLAB, Creighton Mine #9, 1039 Regional Road 24, Sudbury, Ontario P3Y 1N2, Canada
- Laurentian University, Department of Physics, 935 Ramsey Lake Road, Sudbury, Ontario P3E 2C6, Canada
| | - B Serfass
- Department of Physics, University of California, Berkeley, California 94720, USA
| | - S S Poudel
- Pacific Northwest National Laboratory, Richland, Washington 99352, USA
| | - D J Sincavage
- School of Physics & Astronomy, University of Minnesota, Minneapolis, Minnesota 55455, USA
| | - P Sinervo
- Department of Physics, University of Toronto, Toronto, Ontario M5S 1A7, Canada
| | - Z Speaks
- Department of Physics, University of Florida, Gainesville, Florida 32611, USA
| | - J Street
- Department of Physics, South Dakota School of Mines and Technology, Rapid City, South Dakota 57701, USA
| | - H Sun
- Department of Physics, University of Florida, Gainesville, Florida 32611, USA
| | - G D Terry
- Department of Physics, University of South Dakota, Vermillion, South Dakota 57069, USA
| | - F K Thasrawala
- Institut für Experimentalphysik, Universität Hamburg, 22761 Hamburg, Germany
| | - D Toback
- Department of Physics and Astronomy, and the Mitchell Institute for Fundamental Physics and Astronomy, Texas A&M University, College Station, Texas 77843, USA
| | - R Underwood
- TRIUMF, Vancouver, British Columbia V6T 2A3, Canada
- Department of Physics, Queen's University, Kingston, Ontario K7L 3N6, Canada
| | - S Verma
- Department of Physics and Astronomy, and the Mitchell Institute for Fundamental Physics and Astronomy, Texas A&M University, College Station, Texas 77843, USA
| | - A N Villano
- Department of Physics, University of Colorado Denver, Denver, Colorado 80217, USA
| | - B von Krosigk
- Institute for Astroparticle Physics (IAP), Karlsruhe Institute of Technology (KIT), 76344 Eggenstein-Leopoldshafen, Germany
| | - S L Watkins
- Department of Physics, University of California, Berkeley, California 94720, USA
| | - O Wen
- Division of Physics, Mathematics, & Astronomy, California Institute of Technology, Pasadena, California 91125, USA
| | - Z Williams
- School of Physics & Astronomy, University of Minnesota, Minneapolis, Minnesota 55455, USA
| | - M J Wilson
- Institute for Astroparticle Physics (IAP), Karlsruhe Institute of Technology (KIT), 76344 Eggenstein-Leopoldshafen, Germany
| | - J Winchell
- Department of Physics and Astronomy, and the Mitchell Institute for Fundamental Physics and Astronomy, Texas A&M University, College Station, Texas 77843, USA
| | - K Wykoff
- Department of Physics, South Dakota School of Mines and Technology, Rapid City, South Dakota 57701, USA
| | - S Yellin
- Department of Physics, Stanford University, Stanford, California 94305, USA
| | - B A Young
- Department of Physics, Santa Clara University, Santa Clara, California 95053, USA
| | - T C Yu
- SLAC National Accelerator Laboratory/Kavli Institute for Particle Astrophysics and Cosmology, Menlo Park, California 94025, USA
| | - B Zatschler
- Department of Physics, University of Toronto, Toronto, Ontario M5S 1A7, Canada
| | - S Zatschler
- Department of Physics, University of Toronto, Toronto, Ontario M5S 1A7, Canada
| | - A Zaytsev
- Institute for Astroparticle Physics (IAP), Karlsruhe Institute of Technology (KIT), 76344 Eggenstein-Leopoldshafen, Germany
| | - A Zeolla
- Department of Physics, University of Florida, Gainesville, Florida 32611, USA
| | - E Zhang
- Department of Physics, University of Toronto, Toronto, Ontario M5S 1A7, Canada
| | - L Zheng
- Department of Physics and Astronomy, and the Mitchell Institute for Fundamental Physics and Astronomy, Texas A&M University, College Station, Texas 77843, USA
| | - Y Zheng
- Department of Physics & Astronomy, Northwestern University, Evanston, Illinois 60208-3112, USA
| | - A Zuniga
- Department of Physics, University of Toronto, Toronto, Ontario M5S 1A7, Canada
| | - P An
- Department of Physics, Duke University, Durham, North Carolina 27708, USA
| | - P S Barbeau
- Department of Physics, Duke University, Durham, North Carolina 27708, USA
| | - S C Hedges
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - L Li
- Department of Physics, Duke University, Durham, North Carolina 27708, USA
| | - J Runge
- Department of Physics, Duke University, Durham, North Carolina 27708, USA
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Huo R, Zheng L, Li SL, Wang SK, Ma C, Shi HY, Xie XP, Wang NW, Zhang XM, Liu B, Peng L, He QZ, Jiang F. Early adjunctive diagnostic value of contrast-enhanced ultrasound-related quantitative parameter and its relationship with micro-perfusion of nontraumatic necrosis of femoral head. Eur Rev Med Pharmacol Sci 2023; 27:6545-6553. [PMID: 37522666 DOI: 10.26355/eurrev_202307_33125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 08/01/2023]
Abstract
OBJECTIVE The aim of this study is to explore the early diagnostic value of contrast-enhanced ultrasound (CEUS)-related quantitative parameter and its relationship with the micro-perfusion of nontraumatic necrosis of the femoral head. PATIENTS AND METHODS According to the random and double-blind method, the patients with non-traumatic femoral head necrosis diagnosed and treated in our hospital from July 2019 to January 2022 were selected as the subjects (the research group). According to the staging of the International Society of Bone Circulation for Femoral Head Necrosis, 89 patients with stage Ⅱ and Ⅲ A were included (39 patients with stage Ⅱ and 50 patients with stage Ⅲ A). 25 patients who conducted physical examination in our hospital during the same time were taken as the control group. Quantitative parameters of CEUS were analyzed. The content of serum vascular endothelial growth factor (VEGF) and bone morphogenetic protein-2 (BMP-2) were evaluated. The relationship among the quantitative parameters of CEUS, the expression of VEGF and BMP-2 in serum and the patient's condition, and the value for assisting the early diagnosis of nontraumatic femoral head necrosis were analyzed. RESULTS The body mass, body mass index (BMI), blood lipid, and cholesterol levels were much higher in the research group than in the control group (p < 0.05). The research group had a markedly higher slope of ascending branch (AS), strength enhancement index (EI), and VEGF and obviously lower decay slope (DS), mean transit time (MTT), and time to peak (TTP) than the control group (p < 0.05). In the research group, compared to stage Ⅱ, the levels of AS, EI, and VEGF in stage Ⅲ A patients were memorably higher, and the levels of DS, MTT, TTP and BMP-2 were dramatically lower (p < 0.05). Pearson's correlation test showed that AS, EI, and VEGF were positively correlated with the patients' condition, while DS, MTT, TTP and BMP-2 were negatively correlated with the patients' condition (p < 0.05). The receiver operating characteristic (ROC) curve analysis showed that the diagnostic area under the curve (AUC) of quantitative parameters of CEUS was 0.961, with sensitivity and specificity of 88.0% and 97.4%, respectively. The AUC of the combined detection of VEGF and BMP-2 was 0.945 with sensitivity and specificity of 82.3% and 87.5%, respectively, and the combined detection had a high diagnostic value (p < 0.05). CONCLUSIONS The quantitative parameters of CEUS were of great value in the early diagnosis of nontraumatic necrosis of the femoral head with microvascular perfusion and the patients' condition, and provided a reference for the clinical treatment of non-traumatic necrosis of the femoral head. These parameters were expected to be useful indicators for judging the efficacy before and after treatment.
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Affiliation(s)
- R Huo
- Department of Imaging, Affiliated Hospital of Traditional Chinese Medicine, Southwest Medical University, Luzhou City, Sichuan Province, China.
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Feng H, Liu H, Wang Q, Song M, Yang T, Zheng L, Wu D, Shao X, Shi G. Breast cancer diagnosis and prognosis using a high b-value non-Gaussian continuous-time random-walk model. Clin Radiol 2023:S0009-9260(23)00227-1. [PMID: 37344324 DOI: 10.1016/j.crad.2023.05.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 05/11/2023] [Accepted: 05/19/2023] [Indexed: 06/23/2023]
Abstract
AIM To compare the diagnostic performance of mono-exponential model-derived apparent diffusion coefficient (ADC), continuous-time random-walk (CTRW) model-derived Dm, α, β and their combinations in discriminating malignancy of breast lesions, and investigate the association between model-derived parameters and prognosis-related immunohistochemical indices. MATERIALS AND METHODS A total of 85 patients with breast lesions (51 malignant, 34 benign) were analysed in this retrospective study. Clinical characteristics include oestrogen receptor (ER), progesterone receptor (PR), human epidermal receptor 2 (HER2), and Ki-67. The ADC was fitted using a mono-exponential model (b-values = 0, 800 s/mm2), while Dm, α, and β were fitted using a CTRW model. Independent Student's t-test and the Mann-Whitney U-test were used for the comparison of parameters. Discrimination performance was accomplished by receiver operating characteristic (ROC) analysis, and Spearman's correlation analysis was used to explore the association between immunohistochemical indices and diffusion parameters, the statistical significance level was p<0.05. RESULTS Dm and ADC demonstrated similar performance in differentiating malignant and benign lesions (AUC = 0.928 versus 0.930), while the combination of Dm, α, and β could improve the AUC to 0.969. The combined parameter generated by ADC, Dm, α, and β was effective in identifying the ER+/ER- and PR+/PR- patients. Temporal heterogeneity parameter α correlated significantly with the expression of PR. CONCLUSION Diffusion parameters derived from the CTRW model could effectively discriminate the malignancy of breast lesions. Meanwhile, the hormone receptor expression could be distinguished by combined diffusion parameters, and have the potential to reflect the prognosis.
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Affiliation(s)
- H Feng
- Department of Radiology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - H Liu
- Department of Radiology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Q Wang
- Department of Radiology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - M Song
- Department of Radiology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - T Yang
- Shenzhen United Imaging Research Institute of Innovative Medical Equipment, Shenzhen, China
| | - L Zheng
- Shenzhen United Imaging Research Institute of Innovative Medical Equipment, Shenzhen, China
| | - D Wu
- Shanghai Key Laboratory of Magnetic Resonance, School of Physics and Electronics Science, East China Normal University, Shanghai, China
| | - X Shao
- Department of Anesthesiology, The Fourth Hospital of Shijiazhuang, Shijiazhuang, China
| | - G Shi
- Department of Radiology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China.
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18
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Li G, Wang G, Gao Z, Zheng L, Yan Q, Zhang XL, Qiu DZ. [Evaluation of the clinical efficacy of minimally invasive endoscopic surgery in the treatment of isolated non-syndromic sagittal synostosis in infants]. Zhonghua Yi Xue Za Zhi 2023; 103:1860-1863. [PMID: 37271586 DOI: 10.3760/cma.j.cn112137-20221215-02657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The current study aimed to evaluate the early efficacy in infants with isolated non-syndromic sagittal synostosis who underwent minimally invasive endoscopic-assisted surgery. The clinical data of infants with isolated non-syndromic sagittal synostosis who were admitted to the Department of Neurosurgery of the Children's Hospital of Nanjing Medical University and underwent endoscopic-assisted surgery from October 2018 to December 2021 were retrospectively analyzed. All the infants underwent minimally invasive endoscopic-assisted surgery, and were treated with supine sleeping position after surgery. Computer-aided reconstruction technique was used to reconstruct and measure the thin-slice CT scan images of the head before and 3 months after surgery, and the differences in cranial index (CI), cranial cavity volume and angle drawn between the cranial vertex, nasion, and opisthocranion (VNO angle) of preoperative and postoperative groups were analyzed. A total of 103 infants were included in the final analysis, including 85 males and 18 females. The age at surgery was (2.1±0.8) months, and the weight was (6.1±0.9) kg. The postoperative CI was (84±6)%, which increased obviously compared with the pre-operation [(70±5)%] (P<0.001). The cranial volume of post-operation was (947±130) cm³, which was larger than that of the pre-operation [(748±104) cm³] (P<0.001). The VNO angle after surgery was (45±4)°, which showed a significant reduction compared with the pre-operation [(55±4)°] (P<0.001). The correction of head shape was satisfactory. For the treatment of sagittal synostosis in infants, minimally invasive endoscopic-assisted surgery is safe and effective, and in the case of switching from an auxiliary helmet to a supine position, the postoperative correction efficacy of head shape is better.
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Affiliation(s)
- G Li
- Department of Neurosurgery, Affiliated Children's Hospital, Nanjing Medical University, Nanjing 210000, China
| | - G Wang
- Department of Neurosurgery, Affiliated Children's Hospital, Nanjing Medical University, Nanjing 210000, China
| | - Z Gao
- Department of Neurosurgery, Affiliated Children's Hospital, Nanjing Medical University, Nanjing 210000, China
| | - L Zheng
- Department of Neurosurgery, Affiliated Children's Hospital, Nanjing Medical University, Nanjing 210000, China
| | - Q Yan
- Department of Neurosurgery, Affiliated Children's Hospital, Nanjing Medical University, Nanjing 210000, China
| | - X L Zhang
- Department of Neurosurgery, Affiliated Children's Hospital, Nanjing Medical University, Nanjing 210000, China
| | - D Z Qiu
- Department of Neurosurgery, Affiliated Children's Hospital, Nanjing Medical University, Nanjing 210000, China
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Zhang Y, Liu F, Jia Q, Zheng L, Tang Q, Sai L, Zhang W, Du Z, Peng C, Bo C, Zhang F. Baicalin alleviates silica-induced lung inflammation and fibrosis by inhibiting TLR4/NF-?B pathway in rats. Physiol Res 2023; 72:221-233. [PMID: 37159856 PMCID: PMC10226396 DOI: 10.33549/physiolres.934978] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 12/22/2022] [Indexed: 03/24/2024] Open
Abstract
Silicosis is an occupational lung disease caused by inhaling silica dust. The disease is characterized by early lung inflammation and late irreversible pulmonary fibrosis. Here we report the effect of Baicalin, a main flavonoid compound from the roots of Chinese herbal medicine Huang Qin on silicosis in a rat model. Results showed Baicalin (50 or 100 mg/kg/day) can mitigate the silica-induced lung inflammation and reduce the harm of alveolar structure and the blue region of collagen fibers in rat lung at 28 days after administration. At the same time, Baicalin also diminished the level of interleukin-1beta (IL-1beta, interleukin-6 (IL-6), tumor necrosis factor-alpha (TNF-alpha) and transforming growth factor-beta1 (TGF-beta1) in lung tissues. The protein expression of collagen I (Col-1), alpha-smooth muscle actin (alpha-SMA) and vimentin were down-regulated while E-cadherin (E-cad) was increased in Baicalin-treated rats. In addition, the Toll Like Receptor 4 (TLR4)/ nuclear factor kappaB (NF-kappaB) pathway was enabled at 28 days after silica infusion, and the treatment of Baicalin diminished the expression of TLR4 and NF-?B in the lungs of rat with silicosis. These results suggested that Baicalin inhibited the pulmonary inflammatory and fibrosis in a rat model of silicosis, which could be attributed to inhibition of the TLR4/NF-kappaB pathway.
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Affiliation(s)
- Y Zhang
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Ji'nan, Shandong, China. ,
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20
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Zhang Y, Liu F, Jia Q, Zheng L, Tang Q, Sai L, Zhang W, Du Z, Peng C, Bo C, Zhang F. Baicalin alleviates silica-induced lung inflammation and fibrosis by inhibiting TLR4/NF-?B pathway in rats. Physiol Res 2023; 72:221-233. [PMID: 37159856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/11/2023] Open
Abstract
Silicosis is an occupational lung disease caused by inhaling silica dust. The disease is characterized by early lung inflammation and late irreversible pulmonary fibrosis. Here we report the effect of Baicalin, a main flavonoid compound from the roots of Chinese herbal medicine Huang Qin on silicosis in a rat model. Results showed Baicalin (50 or 100 mg/kg/day) can mitigate the silica-induced lung inflammation and reduce the harm of alveolar structure and the blue region of collagen fibers in rat lung at 28 days after administration. At the same time, Baicalin also diminished the level of interleukin-1beta (IL-1beta, interleukin-6 (IL-6), tumor necrosis factor-alpha (TNF-alpha) and transforming growth factor-beta1 (TGF-beta1) in lung tissues. The protein expression of collagen I (Col-1), alpha-smooth muscle actin (alpha-SMA) and vimentin were down-regulated while E-cadherin (E-cad) was increased in Baicalin-treated rats. In addition, the Toll Like Receptor 4 (TLR4)/ nuclear factor kappaB (NF-kappaB) pathway was enabled at 28 days after silica infusion, and the treatment of Baicalin diminished the expression of TLR4 and NF-?B in the lungs of rat with silicosis. These results suggested that Baicalin inhibited the pulmonary inflammatory and fibrosis in a rat model of silicosis, which could be attributed to inhibition of the TLR4/NF-kappaB pathway.
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Affiliation(s)
- Y Zhang
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Ji'nan, Shandong, China. ,
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21
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Xiong YF, Cai Z, Li SC, Song YJ, Hu XM, Zheng L. [Bioinformatics analysis in metagenomic next-generation sequencing of pathogenic microorganisms: current status and challenges]. Zhonghua Yi Xue Za Zhi 2023; 103:1098-1102. [PMID: 37055228 DOI: 10.3760/cma.j.cn112137-20221208-02598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 04/15/2023]
Abstract
The clinical application of metagenomic next-generation sequencing (mNGS) in the diagnosis of unknown pathogenic infections and critical infections has become increasingly valuable. Due to the huge volume of mNGS data and the complexity of clinical diagnosis and treatment, mNGS has difficulties in data analysis and interpretation in practical application. Therefore, in the process of clinical practice, it is crucial to grasp the key points of bioinformatics analysis and establish a standardized bioinformatics analysis process, which is an important step in the transformation of mNGS from laboratory to clinic. At present, bioinformatics analysis of mNGS has made great progress, but with the high requirements of clinical standardization of bioinformatics analysis and the development of computer technology, bioinformatics analysis of mNGS is also facing new challenges. This article mainly elaborates on quality control, and identification and visualization of pathogenic bacteria.
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Affiliation(s)
- Y F Xiong
- Department of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Z Cai
- Department of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - S C Li
- Department of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Y J Song
- Department of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - X M Hu
- Department of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - L Zheng
- Department of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
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22
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Zheng L, Lv XM, Shi Y, Huang MW, Zhang J, Liu SM. Use of free flaps with supermicrosurgery for oncological reconstruction of the maxillofacial region. Int J Oral Maxillofac Surg 2023; 52:423-429. [PMID: 35987710 DOI: 10.1016/j.ijom.2022.04.019] [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: 09/29/2021] [Revised: 03/04/2022] [Accepted: 04/20/2022] [Indexed: 10/15/2022]
Abstract
Supermicrosurgery involves the dissection and anastomosis of vessels<0.8 mm in diameter with minimal donor site morbidity. This study evaluated the feasibility and outcomes of free flaps using supermicrosurgery to repair oncological defects in the maxillofacial region. Forty-two patients were treated with supermicrosurgery to repair oncological defects in the maxillofacial region between December 2015 and February 2021. The supermicrosurgery technique was used for different types of free flap, including 24 superficial circumflex iliac artery perforator flaps, seven anterolateral thigh flaps, three peroneal artery perforator flaps, five medial femoral condyle osteo-adipofascial flaps, and three profunda artery perforator flaps. An artery-to-artery approach was used in 38 patients; venous grafts for anastomosis were used in four patients to resolve an arterial discrepancy. Forty-one flaps (97.6%) survived. Thirty-six patients (85.7%) healed without any complications; three flaps required revision surgery including one lost, one demonstrated wound dehiscence, and two demonstrated wound infection. Supermicrosurgery is a useful complement to conventional microsurgery in head and neck reconstruction.
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Affiliation(s)
- L Zheng
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing, PR China.
| | - X-M Lv
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing, PR China
| | - Y Shi
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing, PR China
| | - M-W Huang
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing, PR China
| | - J Zhang
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing, PR China
| | - S-M Liu
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing, PR China
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23
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Bazhenova L, Chih-Hsin Yang J, Wang M, Mitchell P, Camidge DR, Fang J, Nian W, Chiu CH, Zhou J, Zhao Y, Su WC, Yang TY, Zhu V, Millward M, Fan Y, Huang WT, Cheng Y, Jiang L, Zheng L, Janne P. OA01.07 Sunvozertinib in NSCLC Patients with EGFR Exon20 Insertion Mutations. J Thorac Oncol 2023. [DOI: 10.1016/j.jtho.2022.09.123] [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: 01/30/2023]
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24
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Wang JK, Zheng L, Cheng NS, Li FY. [Whole view of the immune microenvironment of biliary tract cancer]. Zhonghua Wai Ke Za Zhi 2023; 61:291-296. [PMID: 36822585 DOI: 10.3760/cma.j.cn112139-20221212-00526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Abstract
Biliary tract cancer is a group of malignancies which originate from biliary epithelium, and adenocarcinoma is the main pathological type. Although surgical resection is the only radical treatment strategy, most biliary tract cancer patients are diagnosed at locally advanced stage or with distant metastasis. Biliary tract cancer is highly resistant to the conventional chemoradiotherapy and the emerging immunotherapy including immune checkpoint inhibitors, owing to the suppressive immune microenvironment. In a whole view, this paper discussed the anti-tumor and tumor-promoting immune responses of the various immune cells and stromal cells in the immune microenvironment of biliary tract cancer, as well as their correlation with prognosis. The understanding of the whole view of immune microenvironment in biliary tract cancer patients could further inform the design of clinical trials of immunotherapy or combination therapy.
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Affiliation(s)
- J K Wang
- Department of Biliary Surgery,West China Hospital,Sichuan University,Chengdu 610041,China
| | - L Zheng
- The Pancreatic Cancer Precision Medicine Center of Excellence Program,Johns Hopkins University School of Medicine,Baltimore 21287,USA
| | - N S Cheng
- Department of Biliary Surgery,West China Hospital,Sichuan University,Chengdu 610041,China
| | - F Y Li
- Department of Biliary Surgery,West China Hospital,Sichuan University,Chengdu 610041,China
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Tian Y, Zheng L, Wang Z, Li Z, Fu W. Metal-Free Electrochemical Oxidative Difluoroethylation/Cyclization of Olefinic Amides To Construct Difluoroethylated Azaheterocycles. J Org Chem 2023; 88:1875-1883. [PMID: 36669162 DOI: 10.1021/acs.joc.2c02579] [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: 01/22/2023]
Abstract
A new strategy of electrochemical oxidative difluoroethylation to generate difluoroethyl radical with sodium difluoroethylsulfinate (DFES-Na) has been reported for the first time. The method allows quick access to a variety of valuable difluoroethylated azaheterocycles including oxindoles and isoquinoline-1,3-diones via radical tandem difluoroethylation/cyclization in moderate to good yields. The electrochemical cyclopropyldifluoromethylation of N-arylacrylamides also works well using this strategy. Moreover, radical capture and cyclic voltammetry (CV) experiments are also carried out to determine the proposed mechanism.
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Affiliation(s)
- Yunfei Tian
- College of Chemistry and Chemical Engineering, Key Laboratory of Fuction-Oriented Porous Materials of Henan Province, Luoyang Normal University, Luoyang, Henan 471934, P. R. China
| | - Luping Zheng
- College of Chemistry and Chemical Engineering, Key Laboratory of Fuction-Oriented Porous Materials of Henan Province, Luoyang Normal University, Luoyang, Henan 471934, P. R. China
| | - Zhiqiang Wang
- College of Chemistry and Chemical Engineering, Key Laboratory of Fuction-Oriented Porous Materials of Henan Province, Luoyang Normal University, Luoyang, Henan 471934, P. R. China
| | - Zejiang Li
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, College of Chemistry and Materials Science, Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding, Hebei 071002, P. R. China
| | - Weijun Fu
- College of Chemistry and Chemical Engineering, Key Laboratory of Fuction-Oriented Porous Materials of Henan Province, Luoyang Normal University, Luoyang, Henan 471934, P. R. China
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Li C, Dong X, Yuan Q, Xu G, Di Z, Yang Y, Hou J, Zheng L, Chen W, Wu G. Identification of novel characteristic biomarkers and immune infiltration profile for the anaplastic thyroid cancer via machine learning algorithms. J Endocrinol Invest 2023:10.1007/s40618-023-02022-6. [PMID: 36725810 DOI: 10.1007/s40618-023-02022-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Accepted: 01/24/2023] [Indexed: 02/03/2023]
Abstract
PURPOSE Anaplastic thyroid cancer (ATC) is a rare and lethal malignant cancer. In recent years, the application of molecular-driven targeted therapy and immunotherapy has markedly improved the prognosis of ATC. This study aimed to identify characteristic genes for ATC diagnosis and revealed the role of ATC characteristic genes in drug sensitivity and immune cell infiltration. METHODS We downloaded ATC RNA-sequencing data from the GEO database. Following the combination and normalization of the dataset, we first divided the combined datasets into the training cohort and the validation cohort. We identified differentially expressed genes (DEGs) in ATC by differential expression analysis in the training cohort. We used two machine learning algorithms, least absolute shrinkage and selection operator (LASSO) and support vector machine-recursive feature elimination (SVM-RFE) to identify ATC characteristic genes. The CIBERSORT algorithm was performed to calculate the abundance of various immune cells in ATC. Finally, we validated the expression of ATC characteristic genes by quantitative RT-PCR (RT-qPCR) in ATC cell lines and immunohistochemistry (IHC). RESULTS A total of 425 DEGs were identified in the training cohort, including 240 upregulated genes and 185 downregulated genes. Four ATC characteristic genes (ADM, PXDN, MMP1, and TFF3) were identified, and their diagnostic value was validated in the validation cohort (AUC in ROC analysis > 0.75). We established a practical gene expression-based nomogram to accurately predict the probability of ATC. We also found that ATC characteristic biomarkers are associated with the tumor immune microenvironment and drug sensitivity. CONCLUSION ADM, PXDN, MMP1, and TFF3 might serve as potential ATC diagnostic biomarkers and may be helpful for ATC molecular targeted therapy and immunotherapy.
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Affiliation(s)
- C Li
- Department of Thyroid and Breast Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - X Dong
- Department of Thyroid and Breast Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Q Yuan
- Department of Thyroid and Breast Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - G Xu
- Department of Thyroid and Breast Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Z Di
- Department of Gastrointestinal Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
- Department of Gastric and Colorectal Surgical Oncology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Y Yang
- Department of Thyroid and Breast Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - J Hou
- Department of Thyroid and Breast Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - L Zheng
- Department of Thyroid and Breast Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - W Chen
- Department of Thyroid and Breast Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China.
| | - G Wu
- Department of Thyroid and Breast Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China.
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Tang J, Liu J, Du B, Zhang J, Zheng L, Wang X, Wan Y. Short- and long-term outcomes of laparoscopic versus open pelvic exenteration for locally advanced rectal cancer: a single-center propensity score matching analysis. Tech Coloproctol 2023; 27:43-52. [PMID: 36194310 DOI: 10.1007/s10151-022-02691-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 08/15/2022] [Indexed: 01/12/2023]
Abstract
BACKGROUND Research on short-term outcomes and long-term oncological results of laparoscopic pelvic exenteration (LPE) for locally advanced rectal cancer (LARC) is still limited. The purpose of this study was to compare the outcomes of LPE and open pelvic exenteration (OPE). METHODS Between January 2010 and December 2019, consecutive LARC patients who underwent radical pelvic exenteration at Peking University First Hospital were enrolled. Groups were matched at a 1:1 ratio using propensity score matching. The primary endpoints were 3 year overall survival (OS) and disease-free survival (DFS). The secondary endpoints were postoperative short-term outcomes. RESULTS There were 144 patients (68 males and 76 females, median age 58.5 [range 27.0-86.0] years). After matching, patients were stratified into LPE (n = 48) and OPE (n = 48) groups (LPE: 24 males and 24 females, median age 57.0 [range 27.0-81.0] years; OPE: 26 males and 22 females, median age 58.0[range 36.0-80.0] years). There were no significant differences on baseline data between the two groups. Compared with the OPE group, the LPE group had a significantly lower estimated blood loss (200 vs 500 ml, p = 0.003), less overall postoperative complications (12/48 vs 25/48, p = 0.006), less surgical site infection (8/48 vs 20/48, p = 0.007), shorter length of stay (12 vs. 15 days, p = 0.005), but similar operative time (344 vs. 360 min, p = 0.493). The pathological R0 resection rate (98.0% vs. 93.7%, p = 0.610), 3 year local recurrence (18.4% vs. 23.5, p = 0.140), 3 year OS (74.6% vs. 65.5%, p = 0.290) and 3-year DFS (60.0% vs. 50.3%, p = 0.208) were similar between the two groups. Shorter distance from anal verge (HR = 0.92, p = 0.042), (y) pT4b (HR = 2.45, p = 0.023), (y)pN1-2 (HR = 2.42, p = 0.004) and positive CRM (HR = 6.23, p = 0.004) were independent prognostic risks for 3 year DFS. CONCLUSIONS LPE can be performed safely and has certain short-term advantages over OPE, most notably less blood loss and surgical site infection. However, LPE does not improve long-term oncological outcomes.
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Affiliation(s)
- J Tang
- Department of Colorectal Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China. .,Department of General Surgery, Peking University First Hospital, Beijing, China. .,Department of Colorectal Surgery, National Cancer Center/National Clinical Research Center for Cancer/Hebei Cancer Hospital, Chinese Academy of Medical Sciences, Langfang, 065001, China.
| | - J Liu
- Department of General Surgery, Peking University First Hospital, Beijing, China
| | - B Du
- Department of Colorectal Surgery, Gansu Provincial Hospital, Lanzhou, 100034, China
| | - J Zhang
- Department of General Surgery, Peking University First Hospital, Beijing, China
| | - L Zheng
- Department of General Surgery, The Third People's Hospital of Datong, Datong, 037046, China
| | - X Wang
- Department of General Surgery, Peking University First Hospital, Beijing, China.
| | - Y Wan
- Department of General Surgery, Peking University First Hospital, Beijing, China
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Zheng L, Tormey C, Guarente J. Recent RhIG Administration Does Not Interfere with the Rosette Test. Am J Clin Pathol 2022. [DOI: 10.1093/ajcp/aqac126.338] [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: 11/10/2022] Open
Abstract
Abstract
Introduction/Objective
Administration of Rh immune globulin (RhIG) is indicated mid-gestation (28 weeks) and after delivery to prevent Rh D sensitization in Rh D negative women. Women with sporadic prenatal care may not receive the first dose at 28 weeks, and may end up receiving their first dose closer to delivery. The rosette test (RT) is a rapid screen for fetomaternal hemorrhage (FMH) that uses an IgM anti-D antibody to detect fetal Rh D positive red blood cells (RBC) in maternal circulation. It is not currently known if or how recent administration of RhIG prior to performance of a RT may interfere with RBC agglutination and test results.
Methods/Case Report
To approximate mixing of fetal Rh D positive RBC with maternal Rh D negative RBC during FMH, 2% volume of Rh D positive RBC from fetal cord and adult donor samples were spiked into Rh D negative RBC. These mixtures were then incubated with a physiologic concentration of RhIG to occupy all Rh D antigen sites on the Rh D positive cells prior to performing the RT.
Results (if a Case Study enter NA)
Addition of Rh D positive RBC and RhIG to Rh D negative RBC did not affect rosette formation. Rh D negative cells had 0 rosettes/LPF. Rh D negative cells spiked with 2% Rh D positive adult donor and fetal cord RBC by volume produced an average of 9.8 rosettes/LPF (SD: 2.8) and 11.2 (SD: 3.3), respectively. Addition of a physiologic concentration of RhIG to the spiked Rh D positive adult donor and fetal cord RBC produced an average of 13.0 rosettes/LPF (SD: 2.5) and 11.2 rosettes/LPF (SD: 2.6), respectively.
Conclusion
Incubation of Rh D positive RBCs with physiologic concentration of RhIG does not affect the rosette test. Clinicians and laboratorians should be reassured that the rosette test continues to be an accurate way to quantitate FMH after recent RhIG administration.
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Affiliation(s)
- L Zheng
- Laboratory Medicine, Yale University , Brookline, Massachusetts , United States
| | - C Tormey
- Laboratory Medicine, Yale University , Brookline, Massachusetts , United States
| | - J Guarente
- Laboratory Medicine, Yale University , Brookline, Massachusetts , United States
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Sehgal S, Reddy A, Hill C, Lin T, Zheng L, He J, Herman J, Meyer J, Narang A. Neoadjuvant Chemotherapy and Stereotactic Body Radiation Therapy in Patients with Early Onset Pancreatic Cancer: Clinical Outcomes and Toxicity. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1120] [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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30
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Reddy A, Hill C, Sehgal S, He J, Zheng L, Herman J, Meyer J, Narang A. Stereotactic Body Radiation Therapy is Safe and Feasible for the Treatment of Locally Recurrent Pancreatic Adenocarcinoma after Curative Resection. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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Lin T, Reddy A, Hill C, Sehgal S, He J, Zheng L, Herman J, Meyer J, Narang A. The Optimal Timing of Surgery Following Stereotactic Body Radiation Therapy for Borderline Resectable or Locally Advanced Pancreatic Cancer. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1109] [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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Pareek M, Bhatt DL, Zheng L, Lee JJ, Leiter LA, Simon T, Mehta SR, Harrington RA, Fox K, Himmelmann A, Vidal-Petiot E, Steg PG. Blood pressure and clinical outcomes in patients with diabetes and stable coronary artery disease in THEMIS. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1226] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Various BP characteristics, e.g., systolic blood pressure (SBP), diastolic blood pressure (DBP), and pulse pressure (PP), as well as heart rate (HR) may affect the risk of both cardiovascular events and bleeding events. However, the exact way in which these characteristics and outcomes are associated among patients with diabetes and stable coronary artery disease (CAD) remains debated. Moreover, it is unknown whether the risks and benefits of intensified antiplatelet therapy in this patient population are affected by their baseline BP and HR.
Purpose
To assess the relationship between BP components (including HR) and cardiovascular and bleeding events, and to determine if the effects of ticagrelor vs. placebo varied across the BP and HR spectrum, in patients with diabetes and stable CAD.
Methods
THEMIS was a randomized, controlled trial in which 19,220 individuals ≥50 years of age with stable CAD and type 2 diabetes were randomized to receive either ticagrelor plus aspirin or placebo plus aspirin. Patients with a prior myocardial infarction or stroke, or already on dual antiplatelet therapy, were excluded. The primary efficacy outcome was a composite of cardiovascular death, myocardial infarction, or stroke. The primary safety outcome was TIMI major bleeding. We examined prognostic implications of BP components using 1) restricted cubic splines for the overall trends with outcomes; 2) Cox proportional-hazards regression models with predefined BP component intervals adjusted for demographic, clinical, and laboratory variables; and 3) Cox regression models for the effects of ticagrelor vs. placebo on outcomes across the spectrum of BP component values (test for interaction). THEMIS is registered at ClinicalTrials.gov (NCT01991795).
Results
Mean values of baseline BP components were similar between the two study groups. Median follow-up duration was 39.9 months (range 0–57), with 1554 primary efficacy events and 306 primary safety events occurring over the course of the study. All BP components (including HR) displayed various, independent relationships with the tested outcomes. For example, in adjusted spline models, SBP displayed non-linear relationships with the primary outcome, all-cause death, any bleeding, serious adverse events, and intracranial bleeding, and linear relationships with the remaining outcomes. Figure 1 shows the associations of each BP component with the primary efficacy outcome. BP components did not substantially modify the risks and benefits of ticagrelor vs. placebo for the tested outcomes.
Conclusions
BP components were independently associated with efficacy and safety outcomes in patients with stable CAD and type 2 diabetes. However, no important modification of BP components on the effect of ticagrelor vs. placebo was detected.
Funding Acknowledgement
Type of funding sources: Private company. Main funding source(s): AstraZeneca
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Affiliation(s)
- M Pareek
- Brigham and Women's Hospital, Heart and Vascular Center , Boston , United States of America
| | - D L Bhatt
- Brigham and Women's Hospital, Heart and Vascular Center , Boston , United States of America
| | - L Zheng
- Brigham and Women's Hospital, Heart and Vascular Center , Boston , United States of America
| | - J J Lee
- Brigham and Women's Hospital, Heart and Vascular Center , Boston , United States of America
| | - L A Leiter
- St. Michael's Hospital , Toronto , Canada
| | - T Simon
- Sorbonne University , Paris , France
| | - S R Mehta
- McMaster University , Hamilton , Canada
| | - R A Harrington
- Stanford University Medical Center , Stanford , United States of America
| | - K Fox
- Royal Brompton Hospital Imperial College London , London , United Kingdom
| | - A Himmelmann
- AstraZeneca BioPharmaceuticals , Molndal , Sweden
| | - E Vidal-Petiot
- Bichat Hospital, University Paris-Diderot, INSERM-UMR1148, FACT French Alliance for Cardiovascular T , Paris , France
| | - P G Steg
- Bichat Hospital, University Paris-Diderot, INSERM-UMR1148, FACT French Alliance for Cardiovascular T , Paris , France
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Wang M, Yang JH, Mitchell P, Fang J, Nian W, Chiu C, Zhou J, Zhao Y, Su WC, Camidge D, Yang TY, Zhu V, Millward M, Fan Y, Cheng Y, Jiang L, Zheng L, Jänne P. 987P Sunvozertinib for NSCLC patients with EGFR exon 20 insertion mutations: Preliminary analysis of WU-KONG6, the first pivotal study. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1114] [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] Open
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Wang T, Zheng L, Wang Q, Xiao S. EP16.03-038 Single-cell Analyses Reveal Tumor Microenvironment Differences between EGFR 19del and L858R mutations in Lung Adenocarcinoma. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.1099] [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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35
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Zheng L, Jiang SY, Yang L, Cao Y, Chen C, Wang J. [A case of neonatal-onset generalized pustular psoriasis caused by IL36RN gene variation]. Zhonghua Er Ke Za Zhi 2022; 60:829-831. [PMID: 35922198 DOI: 10.3760/cma.j.cn112140-20220217-00128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Affiliation(s)
- L Zheng
- Department of Neonatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - S Y Jiang
- Department of Neonatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - L Yang
- Department of Endocrinology and Inherited Metabolic Diseases, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - Y Cao
- Department of Neonatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - C Chen
- Department of Neonatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - J Wang
- Department of Neonatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
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Ge Y, Tian Y, Wu J, Yan Q, Zheng L, Ren Y, Zhao J, Li Z. Correction: Iron-promoted free radical cascade difunctionalization of unsaturated benzamides with silanes. Chem Commun (Camb) 2022; 58:8149. [PMID: 35801673 DOI: 10.1039/d2cc90239g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Correction for 'Iron-promoted free radical cascade difunctionalization of unsaturated benzamides with silanes' by Yaxin Ge et al., Chem. Commun., 2020, 56, 12656-12659, https://doi.org/10.1039/D0CC05213B.
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Affiliation(s)
- Yaxin Ge
- College of Chemistry & Environmental Science, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, Key Laboratory of Chemical Biology of Hebei Province, and Institute of Life Science and Green Development, Hebei University, Baoding, Hebei 071002, P. R. China.
| | - Yunfei Tian
- College of Chemistry and Chemical Engineering, and Henan Key Laboratory of Function-Oriented Porous Materials, Luoyang Normal University, Luoyang, Henan 471022, P. R. China.
| | - Jilai Wu
- College of Chemistry & Environmental Science, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, Key Laboratory of Chemical Biology of Hebei Province, and Institute of Life Science and Green Development, Hebei University, Baoding, Hebei 071002, P. R. China.
| | - Qinqin Yan
- College of Chemistry & Environmental Science, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, Key Laboratory of Chemical Biology of Hebei Province, and Institute of Life Science and Green Development, Hebei University, Baoding, Hebei 071002, P. R. China.
| | - Luping Zheng
- College of Chemistry and Chemical Engineering, and Henan Key Laboratory of Function-Oriented Porous Materials, Luoyang Normal University, Luoyang, Henan 471022, P. R. China.
| | - Yingming Ren
- College of Chemistry & Environmental Science, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, Key Laboratory of Chemical Biology of Hebei Province, and Institute of Life Science and Green Development, Hebei University, Baoding, Hebei 071002, P. R. China.
| | - Jincan Zhao
- College of Chemistry & Environmental Science, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, Key Laboratory of Chemical Biology of Hebei Province, and Institute of Life Science and Green Development, Hebei University, Baoding, Hebei 071002, P. R. China.
| | - Zejiang Li
- College of Chemistry & Environmental Science, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, Key Laboratory of Chemical Biology of Hebei Province, and Institute of Life Science and Green Development, Hebei University, Baoding, Hebei 071002, P. R. China.
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Reddy AV, Hill CS, Sehgal S, He J, Zheng L, Herman JM, Meyer J, Narang AK. Efficacy and Safety of Reirradiation with Stereotactic Body Radiation Therapy for Locally Recurrent Pancreatic Adenocarcinoma. Clin Oncol (R Coll Radiol) 2022; 34:386-394. [PMID: 34974972 DOI: 10.1016/j.clon.2021.12.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 10/07/2021] [Accepted: 12/17/2021] [Indexed: 11/03/2022]
Abstract
AIMS The purpose of this study was to report on outcomes of a cohort of patients who were treated with reirradiation with stereotactic body radiation therapy (SBRT) for locally recurrent pancreatic adenocarcinoma. MATERIALS AND METHODS Patients treated with SBRT reirradiation for locally recurrent pancreatic adenocarcinoma from December 2009 to April 2020 were included in the study. Descriptive statistics were used to record patient demographics, tumour and treatment characteristics. Kaplan-Meier analysis was used to evaluate overall survival, local progression-free survival (LPFS), distant metastasis-free survival and progression-free survival (PFS). RESULTS In total, 27 patients were included in the study. The median follow-up time from local recurrence was 19.7 months (range 4.2-43.1 months). Most patients received five-fraction SBRT (26/27, 96%). The median overall survival after local recurrence treatment was 18.3 months (range 3.0-42.6 months), with 6-month, 1-year and 2-year overall survival rates of 88.5%, 73.1% and 33.6%. The median LPFS after local recurrence treatment was 16.2 months (range 2.3-33.6 months), with 6-month, 1-year and 2-year LPFS rates of 95.8%, 62.9% and 27.2%. Peri-SBRT chemotherapy improved LPFS (median 17.5 versus 8.5 months; P = 0.010) and overall survival (median 19.3 versus 5.5 months; P = 0.049). Tumours ≤ 3 cm in the greatest dimension showed better local control (median LPFS 19.2 versus 10.2 months; P = 0.130). There was one case (4%) of acute grade 3 pain and one case (4%) of late grade 3 gastrointestinal toxicity. CONCLUSIONS Reirradiation with five-fraction SBRT is safe, but local control remains suboptimal. Patients with smaller tumours experienced improved outcomes, as did patients whose treatment plan included the administration of peri-SBRT chemotherapy.
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Affiliation(s)
- A V Reddy
- Department of Radiation Oncology & Molecular Radiation Sciences, Johns Hopkins University School of Medicine, Sidney Kimmel Cancer Center, Baltimore, Maryland, USA.
| | - C S Hill
- Department of Radiation Oncology & Molecular Radiation Sciences, Johns Hopkins University School of Medicine, Sidney Kimmel Cancer Center, Baltimore, Maryland, USA
| | - S Sehgal
- Department of Radiation Oncology & Molecular Radiation Sciences, Johns Hopkins University School of Medicine, Sidney Kimmel Cancer Center, Baltimore, Maryland, USA
| | - J He
- Department of Surgery, Johns Hopkins University School of Medicine, Sidney Kimmel Cancer Center, Baltimore, Maryland, USA
| | - L Zheng
- Department of Oncology, Johns Hopkins University School of Medicine, Sidney Kimmel Cancer Center, Baltimore, Maryland, USA
| | - J M Herman
- Department of Radiation Oncology, Northwell Health, New Hyde Park, New York, USA
| | - J Meyer
- Department of Radiation Oncology & Molecular Radiation Sciences, Johns Hopkins University School of Medicine, Sidney Kimmel Cancer Center, Baltimore, Maryland, USA
| | - A K Narang
- Department of Radiation Oncology & Molecular Radiation Sciences, Johns Hopkins University School of Medicine, Sidney Kimmel Cancer Center, Baltimore, Maryland, USA
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Zhao D, Lyu XM, Chen P, Shi Y, Huang MW, Zheng L, Zhao WH, Ma XL, Zhang JG. [Efficacy and prognostic analysis of 125I brathytherapy combined with chemotherapy for pediatric parameningeal rhabdomyosarcoma]. Zhonghua Yi Xue Za Zhi 2022; 102:1500-1505. [PMID: 35692064 DOI: 10.3760/cma.j.cn112137-20210831-01979] [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: 06/15/2023]
Abstract
Objective: To analyze the efficacy and prognostic factors in children with parameningeal rhabdomyosarcoma (PMRMS) treated by 125I brachytherapy combined with chemotherapy. Methods: A retrospective analysis of the clinical data of 33 pediatric patients treated with 125I brachytherapy combined with chemotherapy in Peking University Stomatological Hospital from July 2013 to October 2018 was carried out to analyze the efficacy and prognostic factors. Results: Among the 33 patients, 19 were males and 14 were females; the median age was 4 years old (1-12 years old). There were 17 cases with embryonic type, 9 cases with alveolar type, and 7 with undifferentiated type; 26 cases with original PMRMS, and 7 cases with recurrent PMRMS. The tumors occurred in subtemporal-mastoid area in 15 patients, while nasopalatine-paranasal area in 6 cases, and parapharyngeal-submandibular area in 12 cases. There were 28 patients in IRS Ⅲ, and 5 patients in IRS Ⅳ. As for the risk level, 28 cases were in the middle-risk group and 5 cases in the high-risk group. The median follow-up time was 52 months. The 1, 3, and 5-year local control rates were 87.9%, 58.6%, and 49.9%, and the 1, 3, and 5-year survival rates were 93.8%, 60.5%, and 47.5%, respectively. The 5-year local control rate and 5-year survival rate of 12 patients with the tumor in the parapharyngeal-submandibular area were 91.7% and 100%, respectively. The 5-year local control rate and 5-year survival rate of the 6 patients with tumor in the nasopalatine-paranasal area were both 83.3%. The 3-year local control rate and 3-year survival rate of the 15 patients with tumor in the subtemporal-mastoid area were 17.5% and 21.4%. The multivariate survival analysis using Cox proportional risk regression model showed that the tumor located in the subtemporal-mastoid area was an independent risk factor affecting the 5-year overall survival rate (HR=38.40, 95%CI: 4.87-302.52, P=0.001). Within 3 months after 125I seed implantation, the incidence of acute radiotherapy adverse reactions in all patients was 84.8% (28/33). Twenty-one patients (63.6%) had a grade 1 acute radiotherapy reaction, and 7 cases (21.2%) had a grade 2 acute radiotherapy reaction. No acute radiotherapy adverse reactions of grade 3 or 4 occurred. Three months after 125I seed implantation, the adverse reactions were significantly alleviated, and no adverse reactions of grade 3 or above such as skin ulcer or salivary gland fibrosis occurred, and no serious cranio-maxillofacial deformities occurred. Conclusions: 125I seed brachytherapy combined with chemotherapy has a definite clinical effect in the treatment of children with parameningeal rhabdomyosarcoma. The prognosis of rhabdomyosarcoma in the parapharyngeal-submandibular area and nasopalatine-paranasal area is better than that in the subtemporal-mastoid area.
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Affiliation(s)
- D Zhao
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - X M Lyu
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - P Chen
- Department of Oral and Maxillofacial Surgery, Fujian Medical University, Fuzhou, 350005, China
| | - Y Shi
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - M W Huang
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - L Zheng
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - W H Zhao
- Department of Pediatric Hematology, Peking University First Hospital, Beijing 100034, China
| | - X L Ma
- Blood Tumor Center, Beijing Children's Hospital, Capital University of Medical Sciences, Beijing 100045, China
| | - J G Zhang
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
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Li YX, Li G, Qu J, Ren X, Zheng L. Finger touching combined X-ray-guided percutaneous nephrolithotomy in 640 cases: an 8-years' experience. Eur Rev Med Pharmacol Sci 2022; 26:2867-2874. [PMID: 35503631 DOI: 10.26355/eurrev_202204_28617] [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: 06/14/2023]
Abstract
OBJECTIVE We aimed to evaluate the safety and efficacy of finger touching combined X-ray-guided percutaneous nephrolithotomy, and the feasibility of avoiding damage in medical staff caused by X-ray. PATIENTS AND METHODS From January 2013 to December 2020, 640 cases of percutaneous nephrolithotomy were performed through the 18-24-F channel. Among those cases, 22 (3.4%) cases were double-sided kidney stones surgeries, 294 (45.8%) cases were on the right side and 324 (50.5%) cases were on the left side. The targeted renal calyceal puncture was carried out under the combined guidance of the doctor's finger and X-ray. We assessed the X-ray exposure time of patients and doctors, average number of punctures, postoperative hospitalization, calculus removal rates, and complications. RESULTS The average number of punctures was 2.8 ± 1.4. Average X-ray exposure time during procedure: 2.8 s (range: 2-8 s). Average surgical time: 106.5 ± 49.4 min. Postoperative hospitalization: 6.8 ± 4.2 d. Average reduced hemoglobin level: 5.9 g/day. Stone-free rate 4 weeks after surgeries: 95.6%. Patients with upper ureteral calculi: 395 cases (61.72%). The calculus residual rate of patients with staghorn renal calculi or multiple renal calculi complementary treatments was 82.9%, including 0 patients who received shock wave lithotripsy, 2 cases of repeated percutaneous nephrolithotomy (PCNL), and 18 cases of ureteroscopy. Postoperative placement of renal drainage tube occurred in 52 cases. As for complications, no perirenal infection occurred, two severe bleeding complication cases occurred, and one case of colon perforation occurred. CONCLUSIONS Finger touching combined X-ray-guided percutaneous nephrolithotomy in patients with renal calculus is safe and can accurately guide the puncture without radiation hazards. The placement of a renal drainage tube was beneficial to reduce renal effusion, hematocele, and infections.
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Affiliation(s)
- Y-X Li
- Department of Urology, Institute of Tongji Medical College of Huazhong University of Science and Technology, Wuhan, China.
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Zhuang J, Xie L, Zheng L. A Glimpse of Programmed Cell Death Among Bacteria, Animals, and Plants. Front Cell Dev Biol 2022; 9:790117. [PMID: 35223864 PMCID: PMC8866957 DOI: 10.3389/fcell.2021.790117] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Accepted: 11/24/2021] [Indexed: 12/15/2022] Open
Abstract
Programmed cell death (PCD) in animals mainly refers to lytic and non-lytic forms. Disruption and integrity of the plasma membrane are considered as hallmarks of lytic and apoptotic cell death, respectively. These lytic cell death programs can prevent the hosts from microbial pathogens. The key to our understanding of these cases is pattern recognition receptors, such as TLRs in animals and LRR-RLKs in plants, and nod-like receptors (NLRs). Herein, we emphatically discuss the biochemical and structural studies that have clarified the anti-apoptotic and pro-apoptotic functions of Bcl-2 family proteins during intrinsic apoptosis and how caspase-8 among apoptosis, necroptosis, and pyroptosis sets the switchable threshold and integrates innate immune signaling, and that have compared the similarity and distinctness of the apoptosome, necroptosome, and inflammasome. We recapitulate that the necroptotic MLKL pore, pyroptotic gasdermin pore, HR-inducing resistosome, and mitochondrial Bcl-2 family all can form ion channels, which all directly boost membrane disruption. Comparing the conservation and unique aspects of PCD including ferrroptosis among bacteria, animals, and plants, the commonly shared immune domains including TIR-like, gasdermin-like, caspase-like, and MLKL/CC-like domains act as arsenal modules to restructure the diverse architecture to commit PCD suicide upon stresses/stimuli for host community.
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Affiliation(s)
- Jun Zhuang
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, China
- Institute of Plant Virology, Fujian Agriculture and Forestry University, Fuzhou, China
- *Correspondence: Jun Zhuang,
| | - Li Xie
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, China
- Institute of Plant Virology, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Luping Zheng
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, China
- Institute of Plant Virology, Fujian Agriculture and Forestry University, Fuzhou, China
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Fan W, Cheng Y, Zhao H, Yang S, Wang L, Zheng L, Cao Q, Fan W, Cheng Y, Zhao H, Yang S, Wang L, Zheng L, Cao Q. A turn-on NIR fluorescence sensor for gossypol based on Yb-based metal-organic framework. Talanta 2022; 238:123030. [PMID: 34801893 DOI: 10.1016/j.talanta.2021.123030] [Citation(s) in RCA: 7] [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] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 10/29/2021] [Accepted: 10/31/2021] [Indexed: 10/19/2022]
Abstract
The development of analytical method for selective and sensitive detection of gossypol (Gsp), an extraction from the cotton plants, is important but still challenging in food safety and medical field. Herein, we reported a turn-on near infrared (NIR) fluorescence detection strategy for Gsp based on a metal-organic framework (MOF), QBA-Yb, which was prepared from 4,4'-(quinolone-5, 8-diyl) benzoate with Yb(NO3)3·5H2O by solvothermal synthesis. The Gsp acted as another "antenna" to sensitize the luminescence of Yb3+, leading to the turn-on NIR emission upon 467 nm excitation. As Gsp concentration increased, the NIR emission at 973 nm enhanced gradually, thus enabling highly sensitive Gsp detection in a turn-on way. The experiment and theoretical calculation results revealed the presence of strong hydrogen bonds between Gsp molecules and the MOF skeleton. The developed QBA-Yb probe showed excellent characteristics for detection of Gsp molecules, accompanied by wide linear range (5-160 μg/mL), low detection limit (0.65 μg/mL) and short response time (within 10 min). We have further demonstrated that the QBA-Yb probe was successfully applied for the determination of Gsp in real samples of cottonseeds.
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Affiliation(s)
- Wenwen Fan
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University), Ministry of Education Functional Molecules Analysis and Biotransformation, Key Laboratory of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, No. 2 North Cuihu Road, Kunming, 650091, PR China
| | - Yi Cheng
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University), Ministry of Education Functional Molecules Analysis and Biotransformation, Key Laboratory of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, No. 2 North Cuihu Road, Kunming, 650091, PR China
| | - Haili Zhao
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University), Ministry of Education Functional Molecules Analysis and Biotransformation, Key Laboratory of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, No. 2 North Cuihu Road, Kunming, 650091, PR China
| | - Shaoxiong Yang
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University), Ministry of Education Functional Molecules Analysis and Biotransformation, Key Laboratory of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, No. 2 North Cuihu Road, Kunming, 650091, PR China
| | - Longjie Wang
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University), Ministry of Education Functional Molecules Analysis and Biotransformation, Key Laboratory of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, No. 2 North Cuihu Road, Kunming, 650091, PR China
| | - Liyan Zheng
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University), Ministry of Education Functional Molecules Analysis and Biotransformation, Key Laboratory of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, No. 2 North Cuihu Road, Kunming, 650091, PR China.
| | - Qiu'e Cao
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University), Ministry of Education Functional Molecules Analysis and Biotransformation, Key Laboratory of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, No. 2 North Cuihu Road, Kunming, 650091, PR China.
| | - W Fan
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University), Ministry of Education Functional Molecules Analysis and Biotransformation, Key Laboratory of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, No. 2 North Cuihu Road, Kunming, 650091, PR China
| | - Y Cheng
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University), Ministry of Education Functional Molecules Analysis and Biotransformation, Key Laboratory of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, No. 2 North Cuihu Road, Kunming, 650091, PR China
| | - H Zhao
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University), Ministry of Education Functional Molecules Analysis and Biotransformation, Key Laboratory of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, No. 2 North Cuihu Road, Kunming, 650091, PR China
| | - S Yang
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University), Ministry of Education Functional Molecules Analysis and Biotransformation, Key Laboratory of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, No. 2 North Cuihu Road, Kunming, 650091, PR China
| | - L Wang
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University), Ministry of Education Functional Molecules Analysis and Biotransformation, Key Laboratory of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, No. 2 North Cuihu Road, Kunming, 650091, PR China
| | - L Zheng
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University), Ministry of Education Functional Molecules Analysis and Biotransformation, Key Laboratory of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, No. 2 North Cuihu Road, Kunming, 650091, PR China
| | - Q Cao
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University), Ministry of Education Functional Molecules Analysis and Biotransformation, Key Laboratory of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, No. 2 North Cuihu Road, Kunming, 650091, PR China
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McKenna CH, Asgari D, Crippen TL, Zheng L, Sherman RA, Tomberlin JK, Meisel RP, Tarone AM. Gene expression in Lucilia sericata (Diptera: Calliphoridae) larvae exposed to Pseudomonas aeruginosa and Acinetobacter baumannii identifies shared and microbe-specific induction of immune genes. Insect Mol Biol 2022; 31:85-100. [PMID: 34613655 DOI: 10.1111/imb.12740] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 09/24/2021] [Accepted: 09/26/2021] [Indexed: 06/13/2023]
Abstract
Antibiotic resistance is a continuing challenge in medicine. There are various strategies for expanding antibiotic therapeutic repertoires, including the use of blow flies. Their larvae exhibit strong antibiotic and antibiofilm properties that alter microbiome communities. One species, Lucilia sericata, is used to treat problematic wounds due to its debridement capabilities and its excretions and secretions that kill some pathogenic bacteria. There is much to be learned about how L. sericata interacts with microbiomes at the molecular level. To address this deficiency, gene expression was assessed after feeding exposure (1 h or 4 h) to two clinically problematic pathogens: Pseudomonas aeruginosa and Acinetobacter baumannii. The results identified immunity-related genes that were differentially expressed when exposed to these pathogens, as well as non-immune genes possibly involved in gut responses to bacterial infection. There was a greater response to P. aeruginosa that increased over time, while few genes responded to A. baumannii exposure, and expression was not time-dependent. The response to feeding on pathogens indicates a few common responses and features distinct to each pathogen, which is useful in improving the wound debridement therapy and helps to develop biomimetic alternatives.
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Affiliation(s)
- C H McKenna
- Department of Entomology, Texas A&M University, College Station, TX, USA
| | - D Asgari
- Department of Biology and Biochemistry, University of Houston, Houston, TX, USA
| | - T L Crippen
- Southern Plains Agricultural Research Center, Agricultural Research Service, US Department of Agriculture, College Station, TX, USA
| | - L Zheng
- Department of Entomology, Texas A&M University, College Station, TX, USA
| | - R A Sherman
- BioTherapeutics, Education and Research (BTER) Foundation, Irvine, CA, USA
- Monarch Labs, Irvine, CA, USA
| | - J K Tomberlin
- Department of Entomology, Texas A&M University, College Station, TX, USA
| | - R P Meisel
- Department of Biology and Biochemistry, University of Houston, Houston, TX, USA
| | - A M Tarone
- Department of Entomology, Texas A&M University, College Station, TX, USA
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Chen M, Yan C, Zheng L, Zhang XE. The smallest near-infrared fluorescence complementation system for imaging protein-protein and RNA-protein interactions. Chem Sci 2022; 13:1119-1129. [PMID: 35211278 PMCID: PMC8790895 DOI: 10.1039/d1sc04839b] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 12/19/2021] [Indexed: 12/12/2022] Open
Abstract
Bimolecular fluorescence complementation (BiFC) and its derivative molecular biosensor systems provide effective tools for visualizing biomolecular interactions. The introduction of red and near-infrared fluorescence emission proteins has expanded the spectrum of signal generating modules, enabling BiFC for in vivo imaging. However, the large size of the signal module of BiFC can hinder the interaction between proteins under investigation. In this study, we constructed the near-infrared BiFC and TriFC systems by splitting miRFP670nano, the smallest cyanobacteriochrome-evolved phytochrome available. The miRFP670nano-BiFC sensor system identified and enabled visualization of protein–protein interactions in living cells and live mice, and afforded a faster maturation rate and higher photostability and cellular stability when compared with those of reported near-infrared BiFC systems. We used the miRFP670nano-BiFC sensor system to identify interactions between the nucleocapsid (N) protein of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and cellular stress granule proteins in living cells and found that the N protein downregulated the expression level of granule protein G3BP1. With the advantages of small size and long wavelength emission of the signal module, the proposed molecular biosensor system should be suitable for various applications in cell imaging studies. The smallest near-infrared fluorescence complementation system for imaging protein–protein and RNA–protein interactions in living cells and live mice.![]()
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Affiliation(s)
- Minghai Chen
- CAS Key Laboratory of Quantitative Engineering Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences Shenzhen 518055 China
| | - Chuang Yan
- CAS Key Laboratory of Quantitative Engineering Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences Shenzhen 518055 China
| | - Luping Zheng
- CAS Key Laboratory of Quantitative Engineering Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences Shenzhen 518055 China
| | - Xian-En Zhang
- Faculty of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences Shenzhen 518055 China .,National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences Beijing 100101 China
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Pan J, Zheng L, Liu B, You S, Zheng W. The Effect of Bevacizumab-Related Hypertension on the Prognosis of Patients with Colorectal Cancer and Non-Small Cell Lung Cancer. Indian J Pharm Sci 2022. [DOI: 10.36468/pharmaceutical-sciences.spl.448] [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: 11/22/2022] Open
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Zhang CJ, Fang ZY, Tang YQ, Zheng L, Zhu HY, Huang L, Yun Xia L, Ying Huai W, Yin QZ, Wang YQ, Zhang TE. Study on the Mechanism of Zhenwu Decoction in Decreasing the Fats in Non-Alcoholic Fatty Liver Disease Using System Pharmacology and Cytological Validation Test. Indian J Pharm Sci 2022. [DOI: 10.36468/pharmaceutical-sciences.spl.526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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Rong L, He Y, Yuan M, Zheng L, Zhan T, Ling H, Zhang J. Shikonin Induces Oxidative Damage and Promotes Cell Senescence in Lung Cancer Cells through p53/p21WAF Signaling Pathway. Indian J Pharm Sci 2022. [DOI: 10.36468/pharmaceutical-sciences.978] [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: 11/22/2022] Open
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Li M, Hou X, Zheng L, Ma Y, Li D, Lv Y, Chen J, Zheng W, Shao Y, Mou Y, Chen L. Utilizing phenotypic characteristics of metastatic brain tumors to improve the probability of detecting circulating tumor DNA from cerebrospinal fluid in non-small-cell lung cancer patients: development and validation of a prediction model in a prospective cohort study. ESMO Open 2021; 7:100305. [PMID: 34922300 PMCID: PMC8685990 DOI: 10.1016/j.esmoop.2021.100305] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [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: 07/25/2021] [Revised: 10/15/2021] [Accepted: 10/20/2021] [Indexed: 12/18/2022] Open
Abstract
Background Circulating tumor DNA (ctDNA) in cerebrospinal fluid (CSF) has become a promising surrogate for genomic profiling of central nervous system tumors. However, suboptimal ctDNA detection rates from CSF limit its clinical utility. Thus precise screening of suitable patients is needed to maximize the clinical benefit. Patients and methods Between February 2017 and December 2020, 66 newly diagnosed non-small-cell lung cancer (NSCLC) patients with brain parenchymal metastases were prospectively enrolled as a training cohort and 30 additional patients were enrolled as an external validation cohort. CSF samples and matched primary tumor tissues were collected before treatment and subjected to next-generation sequencing (NGS). The imageological characteristics of patients’ brain tumors were evaluated by radiologists using enhanced magnetic resonance imaging images. The clinical and imageological characteristics were evaluated by complete subsets regression, Akaike information criteria, and Bayesian information criteria methods to establish the prediction model. A nomogram was then built for CSF ctDNA detection prediction. Results The somatic mutation detection rate of genes covered by our targeted NGS panel was significantly lower in CSF ctDNA (59.09%) than tumor tissue (91.84%). The Tsize (diameter of the largest intracranial lesion) and LVDmin (minimum lesion–ventricle distance for all intracranial lesions) were significantly associated with positive CSF ctDNA detection, and thus, were selected to establish the prediction model, which achieved an area under the ROC curve (AUC) of 0.819 and an accuracy of 0.800. The model’s predictive ability was further validated in the independent external cohort (AUC of 0.772, accuracy of 0.767) and by internal cross-validation. The CSF ctDNA detection rate was significantly improved from 58.18% (32/55) to 81.81% (27/33) in patients after model selection (P = 0.022). Conclusions This study developed a regression model to predict the probability of detecting CSF ctDNA using the phenotypic characteristics of metastatic brain lesions in NSCLC patients, thus, maximizing the benefits of CSF liquid biopsies. Intracranial tumor size and distance to nearest ventricle were significantly correlated with positive CSF ctDNA detection. A prediction model incorporating Tsize and LVDmin was developed and validated to evaluate the odds of CSF ctDNA positivity. The CSF ctDNA detection rate was significantly improved in patients after model selection.
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Affiliation(s)
- M Li
- Department of Medical Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, P. R. China
| | - X Hou
- Department of Medical Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, P. R. China
| | - L Zheng
- Department of Medical Imaging, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, P. R. China
| | - Y Ma
- Nanjing Geneseeq Technology Inc., Nanjing, Jiangsu, P. R. China
| | - D Li
- Chemotherapy Department 2, Zhongshan City People's Hospital, Zhongshan, Guangdong, P. R. China
| | - Y Lv
- Department of Medical Imaging, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, P. R. China
| | - J Chen
- Department of Medical Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, P. R. China
| | - W Zheng
- Department of Ultrasound, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, P. R. China
| | - Y Shao
- Nanjing Geneseeq Technology Inc., Nanjing, Jiangsu, P. R. China
| | - Y Mou
- Department of Neurosurgery, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, P. R. China.
| | - L Chen
- Department of Medical Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, P. R. China.
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Zheng L, Ma Y, Chen M, Wu G, Yan C, Zhang XE. SARS-CoV-2 spike protein receptor-binding domain N-glycans facilitate viral internalization in respiratory epithelial cells. Biochem Biophys Res Commun 2021; 579:69-75. [PMID: 34592572 PMCID: PMC8459579 DOI: 10.1016/j.bbrc.2021.09.053] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 09/19/2021] [Accepted: 09/22/2021] [Indexed: 01/05/2023]
Abstract
N-glycosylation plays an important role in the pathogenesis of viral infections. However, the role of SARS-CoV-2 RBD N-glycosylation in viral entry remains elusive. In this study, we expressed and purified N331 and N343 N-glycosite mutants of SARS-CoV-2 RBD. We found that de-glycosylation at N331 and N343 drastically reduces the RBD binding to ACE2. More importantly, based on qualitative and quantitative virology research methods, we show that the mutation of RBD N-glycosites interfered with SARS-CoV-2 internalization rather than attachment potentially by decreasing RBD binding to the receptors. Also, the double N-glycosites mutant (N331 + N343) showed significantly increased sensitivity against the designated RBD neutralizing antibodies. Taken together, these results suggest that N-glycosylation of SARS-CoV-2 RBD is not only critical for viral internalization into respiratory epithelial cells but also shields the virus from neutralization. It may provide new insights into the biological process of early-stage SARS-CoV-2 infection with potential therapeutic implications.
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Affiliation(s)
- Luping Zheng
- Shenzhen Institute of Synthetic Biology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Yingxin Ma
- Shenzhen Institute of Synthetic Biology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Minghai Chen
- Shenzhen Institute of Synthetic Biology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Guoqiang Wu
- Shenzhen Institute of Synthetic Biology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Chuang Yan
- Shenzhen Institute of Synthetic Biology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Xian-En Zhang
- Shenzhen Institute of Synthetic Biology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China; National Key Laboratory of Biomacromolecules, CAS Center for Biological Macromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China.
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49
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Reddy A, Hill C, Sehgal S, Ding D, Zheng L, He J, Herman J, Meyer J, Narang A. KRAS and NOTCH1/2 Mutations are Associated With Pathologic and Clinical Outcomes in Localized Pancreatic Cancer Treated With Neoadjuvant Chemotherapy and Stereotactic Body Radiotherapy Followed by Surgical Exploration. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.426] [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: 10/20/2022]
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50
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Chen M, Yan C, Qin F, Zheng L, Zhang XE. The intraviral protein-protein interaction of SARS-CoV-2 reveals the key role of N protein in virus-like particle assembly. Int J Biol Sci 2021; 17:3889-3897. [PMID: 34671206 PMCID: PMC8495407 DOI: 10.7150/ijbs.64977] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Accepted: 08/26/2021] [Indexed: 01/20/2023] Open
Abstract
Intraviral protein-protein interactions (PPIs) of SARS-CoV-2 in host cells may provide useful information for deep understanding of virology of SARS-CoV-2. In this study, 22 of 55 interactions of the structural and accessory proteins of SARS-CoV-2 were identified by biomolecular fluorescence complementation (BiFC) assay. The nucleocapsid (N) protein was found to have the most interactions among the structural and accessory proteins of SARS-CoV-2, and also specifically interacted with the putative packaging signal (PS) of SARS-CoV-2. We also demonstrated that the PS core containing PS576 RNA bears a functional PS, important for the assembly of the viral RNA into virus like particles (VLPs), and the packaging of SARS-CoV-2 RNA was N dependent.
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Affiliation(s)
- Minghai Chen
- CAS Key Laboratory of Quantitative Engineering Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Chuang Yan
- CAS Key Laboratory of Quantitative Engineering Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Fujun Qin
- CAS Key Laboratory of Quantitative Engineering Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Luping Zheng
- CAS Key Laboratory of Quantitative Engineering Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Xian-En Zhang
- Faculty of Synthetic Biology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China.,National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
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