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Li W, Zhang Y, Zhang W, Hu P, Zhang M, Meng X, Zhang X, Shang M, Duan X, Wang C. Portable SERS-Based POCT Kit for Ultrafast and Sensitive Determining Paraquat in Human Gastric Juice and Urine. ACS Omega 2024; 9:18576-18583. [PMID: 38680347 PMCID: PMC11044205 DOI: 10.1021/acsomega.4c01163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Revised: 03/25/2024] [Accepted: 03/29/2024] [Indexed: 05/01/2024]
Abstract
Paraquat (PQ) poisoning poses a significant public health concern. Unfortunately, point-of-care testing (POCT) of PQ in biofluids remains challenging. This study developed a portable kit that enables swift and reliable identification and quantification of PQ in human urine and gastric juice. The approach employed the surface-enhanced Raman scattering (SERS) technique, leveraging gold-silver core-shell nanoparticles (Au@Ag NPs) as the substrate. The kit comprised a portable Raman spectrometer and three sealed tubes containing Au@Ag NPs colloid, KI solution, and MgSO4 solution. A discernible correlation was observed between signal intensity and the logarithmic concentration, spanning from 5 to 500 μg/L in urine and 10 μg/L to 1 mg/L in gastric juice. The detection limits, calculated from the characteristic peak at 1648 cm -1, were 1.36 and 4.05 μg/L in human urine and gastric juice, respectively. Notably, this POCT kit obviated the need for pretreatment procedures, and the detection process was accomplished within 1 min, yielding satisfactory recoveries. This expeditious time frame is crucial for clinical diagnosis and rescue operations. Compared to conventional methods, this kit demonstrated real-time determinations in nonlaboratory settings. The simplicity and practicality of this POCT assay suggest its significant potential as an innovative alternative for poisoning detection applications.
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Affiliation(s)
- Wanru Li
- Physical
and Chemical Laboratory, Shandong Academy of Occupational Health and
Occupational Medicine, Shandong First Medical
University and Shandong Academy of Medical Sciences, Jinan 250000, China
| | - Yuxuan Zhang
- The
First Clinical Medical College, Nanjing
Medical University, Nanjing 211166, China
| | - Wei Zhang
- Physical
and Chemical Laboratory, Shandong Academy of Occupational Health and
Occupational Medicine, Shandong First Medical
University and Shandong Academy of Medical Sciences, Jinan 250000, China
| | - Peishan Hu
- Physical
and Chemical Laboratory, Shandong Academy of Occupational Health and
Occupational Medicine, Shandong First Medical
University and Shandong Academy of Medical Sciences, Jinan 250000, China
| | - Mengping Zhang
- Physical
and Chemical Laboratory, Shandong Academy of Occupational Health and
Occupational Medicine, Shandong First Medical
University and Shandong Academy of Medical Sciences, Jinan 250000, China
| | - Xiao Meng
- Physical
and Chemical Laboratory, Shandong Academy of Occupational Health and
Occupational Medicine, Shandong First Medical
University and Shandong Academy of Medical Sciences, Jinan 250000, China
| | - Xinya Zhang
- Physical
and Chemical Laboratory, Shandong Academy of Occupational Health and
Occupational Medicine, Shandong First Medical
University and Shandong Academy of Medical Sciences, Jinan 250000, China
| | - Ming Shang
- Department
of Key Laboratory, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy
of Medical Sciences, Jinan 250000, China
| | - Xiuping Duan
- Emergency
department, Yantai Yuhuangding Hospital, Qingdao University, Yantai 264000, China
| | - Cuijuan Wang
- Physical
and Chemical Laboratory, Shandong Academy of Occupational Health and
Occupational Medicine, Shandong First Medical
University and Shandong Academy of Medical Sciences, Jinan 250000, China
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2
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Cai YM, Liu XT, Xu LL, Shang M. Electrochemical Ni-Catalyzed Decarboxylative C(sp 3 )-N Cross-Electrophile Coupling. Angew Chem Int Ed Engl 2024; 63:e202315222. [PMID: 38299697 DOI: 10.1002/anie.202315222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 12/22/2023] [Accepted: 01/31/2024] [Indexed: 02/02/2024]
Abstract
A new electrochemical transformation is presented that enables chemists to couple simple alkyl carboxylic acid derivatives with an electrophilic amine reagent to construct C(sp3 )-N bond. The success of this reaction hinges on the merging of cooperative electrochemical reduction with nickel catalysis. The chemistry exhibits a high degree of practicality, showcasing its wide applicability with 1°, 2°, 3° carboxylic acids and remarkable compatibility with diverse functional groups, even in the realm of late-stage functionalization. Furthermore, extensive mechanistic studies have unveiled the engagement of alkyl radicals and iminyl radicals; and elucidated the multifaceted roles played by i Pr2 O, Ni catalyst, and electricity.
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Affiliation(s)
- Yue-Ming Cai
- Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Zhangjiang Institute for Advanced Study, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Xiao-Ting Liu
- Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Zhangjiang Institute for Advanced Study, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Lin-Lin Xu
- Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Zhangjiang Institute for Advanced Study, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Ming Shang
- Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Zhangjiang Institute for Advanced Study, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
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3
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Hu P, Zhang Y, Wei H, Zhang W, Song L, Zhang M, Meng X, Shang M, Wang C. Point-of-Use SERS Approach for Efficient Determination and Removal of Phthalic Acid Esters Based on a Metal-Organic Framework-Coated Melamine Sponge. ACS Appl Mater Interfaces 2024; 16:11528-11536. [PMID: 38386864 DOI: 10.1021/acsami.3c17729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/24/2024]
Abstract
Phthalic acid esters (PAEs) are ubiquitous environmental contaminants, and their real-time monitoring and removal remain challenging. Herein, a point-of-use (POU) device integrating adsorption, surface-enhanced Raman spectroscopy (SERS), and removal strategy was developed and realized ultrafast on-site determination of PAEs and cleanup of them from water. A piece of flexible melamine sponge (MS) was coated with gold nanostars (AuNSs) and metal-organic frameworks (MOFs), thus obtaining SERS activity and adsorption capacity. Based on this multifunctional AuNSs@MOFs/MS composite, clear trends were observed between SERS signal intensity and concentration of di(2-ethylhexyl)phthalate (DEHP) and dibutyl phthalate (DBP). The method detection limits of DEHP and DBP were calculated to be 0.75 × 10-7 and 0.67 × 10-7 M in water, respectively, proving good sensitivity. Furthermore, this POU device exhibited satisfactory adsorption capacity (∼82.3 g/g for DBP and ∼90.0 g/g for DEHP), high adsorption efficiency (equilibrium in 100 s), and good regeneration capability (removal efficiency >70% after 5 cycles). The applicability of this device was verified by its good determination and removal performance in real environmental water matrices. The whole process could be completed within 5 min. This approach provides a new POU alternative for real-time monitoring and removal of PAEs in water.
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Affiliation(s)
- Peishan Hu
- Physical and Chemical Laboratory, Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250000, China
| | - Yuxuan Zhang
- The First Clinical Medical College, Nanjing Medical University, Nanjing 211166, China
| | - Haiyan Wei
- Physical and Chemical Laboratory, Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250000, China
| | - Wei Zhang
- Physical and Chemical Laboratory, Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250000, China
| | - Liqun Song
- Physical and Chemical Laboratory, Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250000, China
| | - Mengping Zhang
- Physical and Chemical Laboratory, Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250000, China
| | - Xiao Meng
- Physical and Chemical Laboratory, Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250000, China
| | - Ming Shang
- Shandong Provincial Key Laboratory of Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250000, China
| | - Cuijuan Wang
- Physical and Chemical Laboratory, Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250000, China
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4
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Shang M, Cai YM. Enantioselective Alkylation of Amino Acid Derivatives with Unactivated Olefins via C–N Bond Cleavage. Synlett 2022. [DOI: 10.1055/s-0042-1752337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Abstract
AbstractWe reported a nickel-catalyzed enantioconvergent deaminative alkylation of α-amino acid derivatives with unactivated olefins, providing an efficient and convenient access to a range of α-enantioenriched amides. This method represents the first example of enantioselective deaminative functionalization with racemic amine precursors and features in mild conditions and broad substrate scope. New sterically encumbered bis(oxazoline) ligand was developed to improve both reactivity and enantioselectivity, which is key to the success of this reaction.
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Liu ZW, Zhang YM, Zhang LY, Zhou T, Li YY, Zhou GC, Miao ZM, Shang M, He JP, Ding N, Liu YQ. Duality of Interactions Between TGF-β and TNF-α During Tumor Formation. Front Immunol 2022; 12:810286. [PMID: 35069596 PMCID: PMC8766837 DOI: 10.3389/fimmu.2021.810286] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [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: 11/06/2021] [Accepted: 12/09/2021] [Indexed: 12/14/2022] Open
Abstract
The tumor microenvironment is essential for the formation and development of tumors. Cytokines in the microenvironment may affect the growth, metastasis and prognosis of tumors, and play different roles in different stages of tumors, of which transforming growth factor β (TGF-β) and tumor necrosis factor α (TNF-α) are critical. The two have synergistic and antagonistic effect on tumor regulation. The inhibition of TGF-β can promote the formation rate of tumor, while TGF-β can promote the malignancy of tumor. TNF-α was initially determined to be a natural immune serum mediator that can induce tumor hemorrhagic necrosis, it has a wide range of biological activities and can be used clinically as a target to immune diseases as well as tumors. However, there are few reports on the interaction between the two in the tumor microenvironment. This paper combs the biological effect of the two in different aspects of different tumors. We summarized the changes and clinical medication rules of the two in different tissue cells, hoping to provide a new idea for the clinical application of the two cytokines.
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Affiliation(s)
- Zhi-Wei Liu
- Provincial-Level Key Laboratory for Molecular Medicine of Major Diseases and The Prevention and Treatment with Traditional Chinese Medicine Research in Gansu Colleges and Universities, Gansu University of Chinese Medicine, Lanzhou, China
| | - Yi-Ming Zhang
- Provincial-Level Key Laboratory for Molecular Medicine of Major Diseases and The Prevention and Treatment with Traditional Chinese Medicine Research in Gansu Colleges and Universities, Gansu University of Chinese Medicine, Lanzhou, China
| | - Li-Ying Zhang
- Provincial-Level Key Laboratory for Molecular Medicine of Major Diseases and The Prevention and Treatment with Traditional Chinese Medicine Research in Gansu Colleges and Universities, Gansu University of Chinese Medicine, Lanzhou, China.,Gansu Institute of Cardiovascular Diseases, The First People's Hospital of Lanzhou City, Lanzhou, China
| | - Ting Zhou
- Provincial-Level Key Laboratory for Molecular Medicine of Major Diseases and The Prevention and Treatment with Traditional Chinese Medicine Research in Gansu Colleges and Universities, Gansu University of Chinese Medicine, Lanzhou, China
| | - Yang-Yang Li
- Provincial-Level Key Laboratory for Molecular Medicine of Major Diseases and The Prevention and Treatment with Traditional Chinese Medicine Research in Gansu Colleges and Universities, Gansu University of Chinese Medicine, Lanzhou, China
| | - Gu-Cheng Zhou
- Provincial-Level Key Laboratory for Molecular Medicine of Major Diseases and The Prevention and Treatment with Traditional Chinese Medicine Research in Gansu Colleges and Universities, Gansu University of Chinese Medicine, Lanzhou, China
| | - Zhi-Ming Miao
- Provincial-Level Key Laboratory for Molecular Medicine of Major Diseases and The Prevention and Treatment with Traditional Chinese Medicine Research in Gansu Colleges and Universities, Gansu University of Chinese Medicine, Lanzhou, China
| | - Ming Shang
- Provincial-Level Key Laboratory for Molecular Medicine of Major Diseases and The Prevention and Treatment with Traditional Chinese Medicine Research in Gansu Colleges and Universities, Gansu University of Chinese Medicine, Lanzhou, China
| | - Jin-Peng He
- Key Laboratory of Space Radiobiology of Gansu Province & Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China
| | - Nan- Ding
- Key Laboratory of Space Radiobiology of Gansu Province & Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China
| | - Yong-Qi Liu
- Provincial-Level Key Laboratory for Molecular Medicine of Major Diseases and The Prevention and Treatment with Traditional Chinese Medicine Research in Gansu Colleges and Universities, Gansu University of Chinese Medicine, Lanzhou, China.,Key Laboratory of Dunhuang Medicine and Transformation at Provincial and Ministerial Level, Gansu University of Chinese Medicine, Lanzhou, China
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6
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Sun SZ, Cai YM, Zhang DL, Wang JB, Yao HQ, Rui XY, Martin R, Shang M. Enantioselective Deaminative Alkylation of Amino Acid Derivatives with Unactivated Olefins. J Am Chem Soc 2022; 144:1130-1137. [PMID: 35029378 DOI: 10.1021/jacs.1c12350] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Herein, we report the first Ni-catalyzed enantioselective deaminative alkylation of amino acid and peptide derivatives with unactivated olefins. Key for success was the discovery of a new sterically encumbered bis(oxazoline) ligand backbone, thus offering a de novo technology for accessing enantioenriched sp3-sp3 linkages via sp3 C-N functionalization. Our protocol is distinguished by its broad scope and generality across a wide number of counterparts, even in the context of late-stage functionalization. In addition, an enantioselective deaminative remote hydroalkylation reaction of unactivated internal olefins is within reach, thus providing a useful entry point for forging enantioenriched sp3-sp3 centers at remote sp3 C-H sites.
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Affiliation(s)
- Shang-Zheng Sun
- Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China.,Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain
| | - Yue-Ming Cai
- Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - De-Liang Zhang
- Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Jia-Bao Wang
- Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Hong-Qing Yao
- Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Xi-Yan Rui
- Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Ruben Martin
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain.,ICREA, Passeig Lluís Companys, 23, 08010, Barcelona, Spain
| | - Ming Shang
- Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
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7
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Swanick C, Shang M, Erhart K, Burkavage R, Dvorak T, Ramakrishna N, Li Z, Shah A, Meeks S, Zeidan O, Kelly P. Advancing the Role of Palliative Proton Therapy Through Diagnostic Scan-Based Planning. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.1368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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8
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Chang M, Shang M, Yuan F, Guo W, Wang C. EF24 exerts cytotoxicity against NSCLC via inducing ROS accumulation. Cancer Cell Int 2021; 21:531. [PMID: 34641863 PMCID: PMC8513219 DOI: 10.1186/s12935-021-02240-z] [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: 07/23/2021] [Accepted: 09/29/2021] [Indexed: 12/11/2022] Open
Abstract
Background The role of Diphenyldifluoroketone (EF24), a synthetic analogue of curcumin with noteworthy antitumor potential, remains unclear in non-small cell lung cancer (NSCLC). Herein, the inhibitory effect of EF24 on NSCLC and its mechanism were studied. Methods Cytotoxicity was measured by MTT assay, colony formation assay and xenograft model. Cell apoptosis and reactive oxygen species (ROS) level were quantified by flow cytometer. Protein level was detected by western blot assay. Mitochondria and autophagosomes were observed using transmission electron microscope and confocal microscopy. Results In-vitro, EF24 significantly induced proliferation inhibition, apoptosis, mitochondrial fission and autophagy of NSCLC cell lines. These cytotoxic effects were significantly attenuated by two reactive oxygen species (ROS) scavengers, indicating its anti-cancer effects largely depend on ROS accumulation. In-vivo, EF24 inhibited tumor growth in a dose-dependent manner. Moreover, no pathological changes of heart, lung, spleen, kidney and liver of mice were observed. Collectively, EF24 induced ROS accumulation, in turn activates cell apoptosis, and then exerts its cytotoxicity on NSCLC cells. Conclusions The results showed that EF24 exerted cytotoxicity against NSCLC via ROS accumulation. Thus, EF24 might serve as a potential anti-cancer agent for the treatment of NSCLC. Supplementary Information The online version contains supplementary material available at 10.1186/s12935-021-02240-z.
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Affiliation(s)
- Minghui Chang
- Department of Clinical Laboratory, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, People's Republic of China
| | - Ming Shang
- Department of Clinical Laboratory, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, People's Republic of China
| | - Fang Yuan
- Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, People's Republic of China
| | - Wei Guo
- Ultrasound Diagnosis Department, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, 250117, Shandong, People's Republic of China.
| | - Cuijuan Wang
- Physical and Chemical Laboratory, Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, 250000, People's Republic of China.
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9
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Liu L, Shang M, Song X, Zhang C, Guo W. Fractionated Irradiation Enhances Invasion and Migration by Inducing Epithelial-Mesenchymal Transition and Stemness-Like Properties in A549 Cells. Ann Clin Lab Sci 2021; 51:521-528. [PMID: 34452890] [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] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
OBJECTIVE Radioresistance-induced locoregional recurrence remains a major cause of low survival rates. However, the mechanism of treatment failure in these lung cancer patients has not been determined. In the current study, we tried to explore the potential molecular mechanism. METHODS The fractionated irradiations were continued until the total concentration reached 80 Gy, and we established radioresistant subclones derived from A549 lines (designated as A549/R). The MTT assay, wound healing assay, transwell assay, and soft agar colony formation assay were employed to detect the proliferation, migration, invasion, and clonogenicity of the cells, respectively. Western blot and Fluorescence Activating Cell Sorter (FACS) indicated the expression of the markers. RESULTS A549/R cells proliferated more slowly than the parental A549 cells. A significant acceleration in cell migration and invasion was revealed in A549/R cells compared with A549 cells. The expression levels of mesenchymal markers (N-cadherin, vimentin, claudin-1, and Snail) increased, while epithelial markers (E-cadherin and β-catenin) decreased in A549/R cells. Meanwhile, the expression levels of stemness markers (Oct4, Notch1, and CD133) increased in A549/R cells, and A549/R cells showed more sphere-forming activity compared with A549 cells. CONCLUSION Fractionated irradiation could promote epithelial-mesenchymal transition and enhance the migration, invasion, and stemness-like properties in A549 cells, elucidating the possible radioresistance mechanisms of the cancer cells.
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Affiliation(s)
- Lisheng Liu
- Key Laboratory of Animal Resistance Research, College of Life Science, Shandong Normal University, Jinan, Shandong, China
- Department of Clinical Laboratory, Shandong Cancer Hospital and Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong, China
| | - Ming Shang
- Department of Clinical Laboratory, Shandong Cancer Hospital and Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong, China
| | - Xingguo Song
- Department of Clinical Laboratory, Shandong Cancer Hospital and Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong, China
| | - Cong Zhang
- Key Laboratory of Animal Resistance Research, College of Life Science, Shandong Normal University, Jinan, Shandong, China
| | - Wei Guo
- Department of Ultrasound Diagnosis, Shandong Cancer Hospital and Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong, China
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10
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Abstract
An operationally simple method to employ nonactivated carboxylic acids as alkylating agents in the N-alkylation of heterocycles is reported through an electrochemically driven anodic decarboxylative process. A wide substrate scope across a range of heterocycles is demonstrated along with a series of applications that significantly reduce the step count required to access such medicinally relevant structures.
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Affiliation(s)
- Tao Sheng
- Department of Chemistry, Scripps Research, 10550 North Torrey Pines Road, La Jolla, CA 92037, United States
| | - Hai-Jun Zhang
- Department of Chemistry, Scripps Research, 10550 North Torrey Pines Road, La Jolla, CA 92037, United States
| | - Ming Shang
- Department of Chemistry, Scripps Research, 10550 North Torrey Pines Road, La Jolla, CA 92037, United States
| | - Chi He
- Department of Chemistry, Scripps Research, 10550 North Torrey Pines Road, La Jolla, CA 92037, United States
| | - Julien. C. Vantourout
- Department of Chemistry, Scripps Research, 10550 North Torrey Pines Road, La Jolla, CA 92037, United States
| | - Phil. S. Baran
- Department of Chemistry, Scripps Research, 10550 North Torrey Pines Road, La Jolla, CA 92037, United States
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11
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Abstract
Copper mediated C(sp2)-H amination and hydroxylation of arylphosphinic acid are accomplished by adopting phosphinamide as the directing group. This method is distinguished by its wide substrate scope and excellent functional group tolerance, thus allowing for the rapid preparation of organophosphorus compounds in organic synthesis.
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Affiliation(s)
- Shang-Zheng Sun
- Department of Chemistry, Innovative Drug Research Center, Shanghai University, 99 Shangda Road, Shanghai, 200444, China
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12
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Xiang J, Shang M, Kawamata Y, Lundberg H, Reisberg SH, Chen M, Mykhailiuk P, Beutner G, Collins MR, Davies A, Del Bel M, Gallego GM, Spangler JE, Starr J, Yang S, Blackmond DG, Baran PS. Hindered dialkyl ether synthesis with electrogenerated carbocations. Nature 2019; 573:398-402. [PMID: 31501569 DOI: 10.1038/s41586-019-1539-y] [Citation(s) in RCA: 180] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Accepted: 07/12/2019] [Indexed: 11/09/2022]
Abstract
Hindered ethers are of high value for various applications; however, they remain an underexplored area of chemical space because they are difficult to synthesize via conventional reactions1,2. Such motifs are highly coveted in medicinal chemistry, because extensive substitution about the ether bond prevents unwanted metabolic processes that can lead to rapid degradation in vivo. Here we report a simple route towards the synthesis of hindered ethers, in which electrochemical oxidation is used to liberate high-energy carbocations from simple carboxylic acids. These reactive carbocation intermediates, which are generated with low electrochemical potentials, capture an alcohol donor under non-acidic conditions; this enables the formation of a range of ethers (more than 80 have been prepared here) that would otherwise be difficult to access. The carbocations can also be intercepted by simple nucleophiles, leading to the formation of hindered alcohols and even alkyl fluorides. This method was evaluated for its ability to circumvent the synthetic bottlenecks encountered in the preparation of 12 chemical scaffolds, leading to higher yields of the required products, in addition to substantial reductions in the number of steps and the amount of labour required to prepare them. The use of molecular probes and the results of kinetic studies support the proposed mechanism and the role of additives under the conditions examined. The reaction manifold that we report here demonstrates the power of electrochemistry to access highly reactive intermediates under mild conditions and, in turn, the substantial improvements in efficiency that can be achieved with these otherwise-inaccessible intermediates.
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Affiliation(s)
- Jinbao Xiang
- Department of Chemistry, Scripps Research, La Jolla, CA, USA.,The Center for Combinatorial Chemistry and Drug Discovery of Jilin University, The School of Pharmaceutical Sciences, Jilin University, Jilin, People's Republic of China
| | - Ming Shang
- Department of Chemistry, Scripps Research, La Jolla, CA, USA
| | - Yu Kawamata
- Department of Chemistry, Scripps Research, La Jolla, CA, USA
| | - Helena Lundberg
- Department of Chemistry, Scripps Research, La Jolla, CA, USA.,Department of Chemistry, KTH Royal Institute of Technology, Stockholm, Sweden
| | | | - Miao Chen
- Department of Chemistry, Scripps Research, La Jolla, CA, USA
| | - Pavel Mykhailiuk
- Department of Chemistry, Scripps Research, La Jolla, CA, USA.,Enamine Ltd, Kiev, Ukraine.,Chemistry Department, Taras Shevchenko National University of Kyiv, Kiev, Ukraine
| | - Gregory Beutner
- Chemical and Synthetic Development, Bristol-Myers Squibb, New Brunswick, NJ, USA
| | - Michael R Collins
- Department of Chemistry, La Jolla Laboratories, Pfizer Inc, San Diego, CA, USA
| | | | - Matthew Del Bel
- Department of Chemistry, La Jolla Laboratories, Pfizer Inc, San Diego, CA, USA
| | - Gary M Gallego
- Department of Chemistry, La Jolla Laboratories, Pfizer Inc, San Diego, CA, USA
| | - Jillian E Spangler
- Department of Chemistry, La Jolla Laboratories, Pfizer Inc, San Diego, CA, USA
| | | | - Shouliang Yang
- Department of Chemistry, La Jolla Laboratories, Pfizer Inc, San Diego, CA, USA
| | | | - Phil S Baran
- Department of Chemistry, Scripps Research, La Jolla, CA, USA.
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13
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Wang C, Song X, Shang M, Zou W, Zhang M, Wei H, Shao H. Curcumin exerts cytotoxicity dependent on reactive oxygen species accumulation in non-small-cell lung cancer cells. Future Oncol 2019; 15:1243-1253. [PMID: 30843426 DOI: 10.2217/fon-2018-0708] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
AIM Curcumin induces cytotoxic cell death in several human cancer cells. Here, we have investigated the effects of curcumin on non-small-cell lung cancer (NSCLC) with an aim to identify underlying mechanisms of its cytotoxic effect. MATERIALS & METHODS The effects of various concentrations of curcumin on the NSCLC cell lines A549 and SPC-A1 were evaluated by MTT assay, colony-forming assay and flow cytometry. Additionally, protein expression associated with different signaling pathways was assessed using western blotting. RESULTS Curcumin exhibited cytotoxicity against NSCLC, evident from the inhibition of cell proliferation, G2/M arrest, DNA damage, endoplasmic reticulum stress and mitochondrial apoptosis. The anticancer effect was related to reactive oxygen species (ROS) accumulation and could be reversed by ROS scavengers, catalase and N-acetyl-l-cysteine. Curcumin decreased mitochondrial transmembrane potential and induced ROS production, thereby activating the DNA damage/repair pathway and mitochondrial apoptosis. CONCLUSION These results indicate that curcumin could be an effective therapeutic candidate for NSCLC.
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Affiliation(s)
- Cuijuan Wang
- Key Laboratory of Public Health, Shandong Academy of Occupational Health & Occupational Medicine, Shandong Academy of Medical Sciences, Jinan, Shandong, PR China
| | - Xingguo Song
- Shandong Provincial Key Laboratory of Radiation Oncology, Shandong Cancer Hospital Affiliated to Shandong University, Shandong Academy of Medical Sciences, Jinan, Shandong, PR China
| | - Ming Shang
- Shandong Provincial Key Laboratory of Radiation Oncology, Shandong Cancer Hospital Affiliated to Shandong University, Shandong Academy of Medical Sciences, Jinan, Shandong, PR China
| | - Wei Zou
- Key Laboratory of Public Health, Shandong Academy of Occupational Health & Occupational Medicine, Shandong Academy of Medical Sciences, Jinan, Shandong, PR China
| | - Mengping Zhang
- Key Laboratory of Public Health, Shandong Academy of Occupational Health & Occupational Medicine, Shandong Academy of Medical Sciences, Jinan, Shandong, PR China
| | - Haiyan Wei
- Key Laboratory of Public Health, Shandong Academy of Occupational Health & Occupational Medicine, Shandong Academy of Medical Sciences, Jinan, Shandong, PR China
| | - Hua Shao
- Key Laboratory of Public Health, Shandong Academy of Occupational Health & Occupational Medicine, Shandong Academy of Medical Sciences, Jinan, Shandong, PR China
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14
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Affiliation(s)
- Minghong Li
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Shanghai 20032, China
| | - Ming Shang
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Shanghai 20032, China
| | - Hui Xu
- Department of Medicinal Chemistry, Shanghai Institute of Materia Medica, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 555 Road Zu Chong Zhi, Zhangjiang Hi-Tech Park, Shanghai 201203, China
| | - Xing Wang
- Department of Medicinal Chemistry, Shanghai Institute of Materia Medica, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 555 Road Zu Chong Zhi, Zhangjiang Hi-Tech Park, Shanghai 201203, China
| | - Hui-Xiong Dai
- Department of Medicinal Chemistry, Shanghai Institute of Materia Medica, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 555 Road Zu Chong Zhi, Zhangjiang Hi-Tech Park, Shanghai 201203, China
| | - Jin-Quan Yu
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
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15
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Wang J, Shang M, Lundberg H, Feu KS, Hecker SJ, Qin T, Blackmond DG, Baran PS. Cu-Catalyzed Decarboxylative Borylation. ACS Catal 2018; 8:9537-9542. [PMID: 30505624 PMCID: PMC6257631 DOI: 10.1021/acscatal.8b02928] [Citation(s) in RCA: 109] [Impact Index Per Article: 18.2] [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: 07/25/2018] [Revised: 09/07/2018] [Indexed: 12/15/2022]
Abstract
![]()
A simple
method for the conversion of carboxylic acids to boronic
esters via redox-active esters (RAEs) is reported using copper catalysis.
The scope of this transformation is broad, and compared with the known
protocols available, it represents the most inexpensive, rapid, and
operationally simple option. In addition to a full exploration of
the scope, a kinetic study was performed to elucidate substrate and
reagent concentration dependences.
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Affiliation(s)
- Jie Wang
- Department of Chemistry, The Scripps Research Institute (TSRI), North Torrey Pines Road, La Jolla, California 92037, United States
| | - Ming Shang
- Department of Chemistry, The Scripps Research Institute (TSRI), North Torrey Pines Road, La Jolla, California 92037, United States
| | - Helena Lundberg
- Department of Chemistry, The Scripps Research Institute (TSRI), North Torrey Pines Road, La Jolla, California 92037, United States
| | - Karla S. Feu
- Department of Chemistry, The Scripps Research Institute (TSRI), North Torrey Pines Road, La Jolla, California 92037, United States
| | - Scott J. Hecker
- The Medicines Company, 3013 Science Park Road, San Diego, California 92121, United States
| | - Tian Qin
- Department of Chemistry, The Scripps Research Institute (TSRI), North Torrey Pines Road, La Jolla, California 92037, United States
| | - Donna G. Blackmond
- Department of Chemistry, The Scripps Research Institute (TSRI), North Torrey Pines Road, La Jolla, California 92037, United States
| | - Phil S. Baran
- Department of Chemistry, The Scripps Research Institute (TSRI), North Torrey Pines Road, La Jolla, California 92037, United States
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16
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Liu R, Wang T, Shang M, Wang X, Zhang P. LincRNA-RoR regulates the apoptotic function of p53 via targeting miR-204/MDM2 in human esophageal squamous cell carcinoma. Toxicol Lett 2018. [DOI: 10.1016/j.toxlet.2018.06.579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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17
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Yang YJ, Shang M, Li YW, Luo XT, Li J, Ma SL, Li F. Estimation of Lung Volume in Normal Population Using MSCT. Fa Yi Xue Za Zhi 2018; 34:504-507. [PMID: 30468052 DOI: 10.12116/j.issn.1004-5619.2018.05.013] [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] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Indexed: 06/09/2023]
Abstract
OBJECTIVES To estimate lung volume in normal population by a combination of multi-slice spiral CT and Pulmo software. METHODS Scans of the lung were performed on 45 normal individuals using Emotion 16-slice spiral CT and Pulmo software. A measurement instrument of work station was used to measure the vertical diameter of left and right lungs, the maximum anteroposterior and transverse diameters at the layers of apex pulmonis 1 cm below, arcus aortae, subcarinal and diaphragmatic dome, and the lung volume. Regression analysis was performed on normal lung volume and each measured parameter by SPSS 20.0 and an optimal model was selected. RESULTS The goodness of fit between the best curvilinear equations of the normal bilateral lung volumes was 0.981. The goodness of fit between the curvilinear equations of the normal bilateral lung volume and the product of the vertical diameter and the maximum transverse diameter of diaphragmatic dome were 0.977 and 0.972, respectively. Fifteen cases were selected to make a retrospective test on the 3 models. No significant difference was found between the estimated and measured with Pulmo software lung volumes. CONCLUSIONS The normal lung volume before injury can be estimated by the curvilinear equations established in this study. The percentage of lung compression can be measured based on the volume of compressed lung, which can provide a reference for the identification of lung compression degree.
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Affiliation(s)
- Y J Yang
- School of Forensic Medicine, Henan University of Science and Technology, Luoyang 471023, Henan Province, China
| | - M Shang
- Radiology Department of Luoyang 202 Hospital, China Air-borne Missile Academy, Luoyang 471003, Henan Province, China
| | - Y W Li
- Radiology Department of Luoyang 202 Hospital, China Air-borne Missile Academy, Luoyang 471003, Henan Province, China
| | - X T Luo
- School of Forensic Medicine, Henan University of Science and Technology, Luoyang 471023, Henan Province, China
| | - J Li
- School of Forensic Medicine, Henan University of Science and Technology, Luoyang 471023, Henan Province, China
| | - S L Ma
- School of Forensic Medicine, Henan University of Science and Technology, Luoyang 471023, Henan Province, China
| | - F Li
- School of Forensic Medicine, Henan University of Science and Technology, Luoyang 471023, Henan Province, China
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18
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Luo YC, Zhang YQ, Hu K, Zhang Z, Xiong MQ, Hu WH, Dong ML, Shang M. [5-HT(2A) receptor/protein kinase C pathway in mediating long-term facilitation of carotid sinus nerve discharge in chronic intermittent hypoxia rats]. Zhonghua Jie He He Hu Xi Za Zhi 2018; 41:611-615. [PMID: 30138970 DOI: 10.3760/cma.j.issn.1001-0939.2018.08.008] [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] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Objective: To explore the role of 5-HT(2A)R/PKC pathway in mediating long-term facilitation (LTF) of carotid sinus nerve (CSN) discharge in chronic intermittent hypoxia (CIH) rats. Methods: With number table, 24 adult SD rats were randomly divided into saline control group (group A, n=6), 5-HT(2A)R antagonist (ketanserin) group (group B, n=6), PKC inhibitor (PKC θ-pseudosubstrate) group (group C, n=6) and combined ketanserin with PKC θ-pseudosubstrate group (group D, n=6). All rats were placed into the animal chambers for CIH treatment, 8 h per day (from 9: 00 to 17: 00) for 4 consecutive weeks. 28 days later, 5 min × 3 times of stimulation with acute intermittent hypoxia (AIH) were given, after that, stable CSN discharge activities were recorded and compared before and after intravenous injection of saline (group A), ketanserin (group B), PKC θ-pseudosubstrate (group C) or ketanserin + PKC θ-pseudosubstrate (group D), respectively. Results: There were no significant difference in the baseline (before AIH stimulation) average peak amplitude of CSN discharge among the four groups (P>0.05). In group A, the amplitude of CSN discharge at 30 min and 60 min after AIH were (5.01 ± 0.53) μV and (4.95 ± 0.34) μV respectively, which were significantly higher than that before AIH (P<0.01). The results implied that the CSN LTF could be induced by AIH in CIH pre-treatment rats. In group B, the amplitude of CSN discharge at 30 min and 60 min after AIH were (3.79 ± 0.42) μV and (3.73 ± 0.46) μV, respectively, which were still significantly higher than that before AIH (P<0.01), showing that carotid sinus nerve LTF couldn't be completely blocked by 5-HT(2A)R antagonist in rats. After injection of PKC θ-pseudosubstrate or ketanserin + PKC θ-pseudosubstrate in group C or D, there were no significant differences in CSN discharge amplitude before and after AIH (P>0.01), suggesting that inhibition of PKC alone or 5-HT(2A)R/PKC pathway could completely block the LTF of CSN. Conclusion: 5-HT(2A)R/PKC pathway was involved in mediating long-term facilitation of carotid sinus nerve discharge in CIH rats.
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Affiliation(s)
- Y C Luo
- Department of Respiratory Disease, Renmin Hospital of Wuhan University, Wuhan 430060, China
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19
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Shang M, Chan JZ, Cao M, Chang Y, Wang Q, Cook B, Torker S, Wasa M. C-H Functionalization of Amines via Alkene-Derived Nucleophiles through Cooperative Action of Chiral and Achiral Lewis Acid Catalysts: Applications in Enantioselective Synthesis. J Am Chem Soc 2018; 140:10593-10601. [PMID: 30045617 DOI: 10.1021/jacs.8b06699] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Catalytic transformations of α-amino C-H bonds to afford valuable enantiomerically enriched α-substituted amines, entities that are prevalent in pharmaceuticals and bioactive natural products, have been developed. Typically, such processes are carried out under oxidative conditions and require precious metal-based catalysts. Here, we disclose a strategy for an enantioselective union of N-alkylamines and α,β-unsaturated compounds, performed under redox-neutral conditions, and promoted through concerted action of seemingly competitive Lewis acids, B(C6F5)3, and a chiral Mg-PyBOX complex. Thus, a wide variety of β-amino carbonyl compounds may be synthesized, with complete atom economy, through stereoselective reaction of an in situ-generated enantiomerically enriched Mg-enolate and an appropriate electrophile.
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Affiliation(s)
- Ming Shang
- Department of Chemistry, Merkert Chemistry Center , Boston College , Chestnut Hill , Massachusetts 02467 , United States
| | - Jessica Z Chan
- Department of Chemistry, Merkert Chemistry Center , Boston College , Chestnut Hill , Massachusetts 02467 , United States
| | - Min Cao
- Department of Chemistry, Merkert Chemistry Center , Boston College , Chestnut Hill , Massachusetts 02467 , United States
| | - Yejin Chang
- Department of Chemistry, Merkert Chemistry Center , Boston College , Chestnut Hill , Massachusetts 02467 , United States
| | - Qifan Wang
- Department of Chemistry, Merkert Chemistry Center , Boston College , Chestnut Hill , Massachusetts 02467 , United States
| | - Brennan Cook
- Department of Chemistry, Merkert Chemistry Center , Boston College , Chestnut Hill , Massachusetts 02467 , United States
| | - Sebastian Torker
- Department of Chemistry, Merkert Chemistry Center , Boston College , Chestnut Hill , Massachusetts 02467 , United States
| | - Masayuki Wasa
- Department of Chemistry, Merkert Chemistry Center , Boston College , Chestnut Hill , Massachusetts 02467 , United States
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20
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Shang M, Cao M, Wang Q, Wasa M. Enantioselective Direct Mannich-Type Reactions Catalyzed by Frustrated Lewis Acid/Brønsted Base Complexes. Angew Chem Int Ed Engl 2017; 56:13338-13341. [DOI: 10.1002/anie.201708103] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Revised: 08/31/2017] [Indexed: 11/09/2022]
Affiliation(s)
- Ming Shang
- Department of Chemistry; Merkert Chemistry Center; Boston College; Chestnut Hill MA 02467 USA
| | - Min Cao
- Department of Chemistry; Merkert Chemistry Center; Boston College; Chestnut Hill MA 02467 USA
| | - Qifan Wang
- Department of Chemistry; Merkert Chemistry Center; Boston College; Chestnut Hill MA 02467 USA
| | - Masayuki Wasa
- Department of Chemistry; Merkert Chemistry Center; Boston College; Chestnut Hill MA 02467 USA
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21
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Shang M, Cao M, Wang Q, Wasa M. Enantioselective Direct Mannich-Type Reactions Catalyzed by Frustrated Lewis Acid/Brønsted Base Complexes. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201708103] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Ming Shang
- Department of Chemistry; Merkert Chemistry Center; Boston College; Chestnut Hill MA 02467 USA
| | - Min Cao
- Department of Chemistry; Merkert Chemistry Center; Boston College; Chestnut Hill MA 02467 USA
| | - Qifan Wang
- Department of Chemistry; Merkert Chemistry Center; Boston College; Chestnut Hill MA 02467 USA
| | - Masayuki Wasa
- Department of Chemistry; Merkert Chemistry Center; Boston College; Chestnut Hill MA 02467 USA
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22
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Xu H, Zong H, Ma C, Ming X, Shang M, Li K, He X, Du H, Cao L. Epidermal growth factor receptor in glioblastoma. Oncol Lett 2017; 14:512-516. [PMID: 28693199 PMCID: PMC5494611 DOI: 10.3892/ol.2017.6221] [Citation(s) in RCA: 79] [Impact Index Per Article: 11.3] [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: 06/06/2016] [Accepted: 03/21/2017] [Indexed: 12/11/2022] Open
Abstract
Mutations in the epidermal growth factor receptor (EGFR) are commonly occurring in glioblastoma. Enhanced activation of EGFR can occur through a variety of different mechanisms, both ligand-dependent and ligand-independent. Numerous evidence has suggested that EGFR is overexpressed in most of primary glioblastomas and some of the secondary glioblastomas and is characteristic of more aggressive glioblastoma phenotypes. Additionally, recent studies have revealed that wild-type EGFR, and to a greater extent hyper-activating EGFR mutants induced a substantial upregulation of Fyn expression. Furthermore, it was determined that Fyn expression is upregulated across a panel of patient-derived glioblastoma stem cells (GSCs) relative to normal progenitor controls. Moreover, researchers are continuously involved in elucidation of novel mechanism linking EGFR EGFR-expressing glioblastoma. The present review highlights current aspects of EGFR receptor in glioblastoma and concludes that the concept of EGFR signaling and related receptors and associated factors is evolving, however, it needs detailed evaluation for future clinical applications in cancer patients.
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Affiliation(s)
- Hongsheng Xu
- Department of Neurosurgery, Central Hospital of Xuzhou, Affiliated Hospital of Southeast University, Xuzhou, Jiangsu 221009, P.R. China
| | - Hailiang Zong
- Department of Neurosurgery, Central Hospital of Xuzhou, Affiliated Hospital of Southeast University, Xuzhou, Jiangsu 221009, P.R. China
| | - Chong Ma
- Department of Neurosurgery, Central Hospital of Xuzhou, Affiliated Hospital of Southeast University, Xuzhou, Jiangsu 221009, P.R. China
| | - Xing Ming
- Department of Neurosurgery, Central Hospital of Xuzhou, Affiliated Hospital of Southeast University, Xuzhou, Jiangsu 221009, P.R. China
| | - Ming Shang
- Department of Neurosurgery, Central Hospital of Xuzhou, Affiliated Hospital of Southeast University, Xuzhou, Jiangsu 221009, P.R. China
| | - Kai Li
- Department of Neurosurgery, Central Hospital of Xuzhou, Affiliated Hospital of Southeast University, Xuzhou, Jiangsu 221009, P.R. China
| | - Xiaoguang He
- Department of Neurosurgery, Central Hospital of Xuzhou, Affiliated Hospital of Southeast University, Xuzhou, Jiangsu 221009, P.R. China
| | - Hai Du
- Department of Neurosurgery, Central Hospital of Xuzhou, Affiliated Hospital of Southeast University, Xuzhou, Jiangsu 221009, P.R. China
| | - Lei Cao
- Department of Neurosurgery, Central Hospital of Xuzhou, Affiliated Hospital of Southeast University, Xuzhou, Jiangsu 221009, P.R. China
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23
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Shang M, Wang MM, Saint-Denis TG, Li MH, Dai HX, Yu JQ. Copper-Mediated Late-Stage Functionalization of Heterocycle-Containing Molecules. Angew Chem Int Ed Engl 2017; 56:5317-5321. [PMID: 28393446 DOI: 10.1002/anie.201611287] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Revised: 02/23/2017] [Indexed: 12/27/2022]
Abstract
One long-standing issue in directed C-H functionalization is that either nitrogen or sulfur atoms present in heterocyclic substrates may bind preferentially to a transition-metal catalyst rather than to the desired directing group. This competitive binding has largely hindered the application of C-H functionalization in late-stage heterocycle drug discovery. Reported here is the use of an oxazoline-based directing group capable of overriding the poisoning effect of a wide range of heterocycle substrates. The potential use of this directing group in pharmaceutical drug discovery is illustrated by diversification of Telmisartan (an antagonist for the angiotensin II receptor) through copper-mediated C-H amination, hydroxylation, thiolation, arylation, and trifluoromethylation.
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Affiliation(s)
- Ming Shang
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 LingLing Road, Shanghai, 200032, China
| | - Ming-Ming Wang
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 LingLing Road, Shanghai, 200032, China
| | - Tyler G Saint-Denis
- The Scripps Research Institute (TSRI), 10550 North Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Ming-Hong Li
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 LingLing Road, Shanghai, 200032, China
| | - Hui-Xiong Dai
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 LingLing Road, Shanghai, 200032, China
| | - Jin-Quan Yu
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 LingLing Road, Shanghai, 200032, China.,The Scripps Research Institute (TSRI), 10550 North Torrey Pines Road, La Jolla, CA, 92037, USA
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24
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Shang M, Wang M, Saint‐Denis TG, Li M, Dai H, Yu J. Copper‐Mediated Late‐Stage Functionalization of Heterocycle‐Containing Molecules. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201611287] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Ming Shang
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Chinese Academy of Sciences 345 LingLing Road Shanghai 200032 China
| | - Ming‐Ming Wang
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Chinese Academy of Sciences 345 LingLing Road Shanghai 200032 China
| | - Tyler G. Saint‐Denis
- The Scripps Research Institute (TSRI) 10550 North Torrey Pines Road La Jolla CA 92037 USA
| | - Ming‐Hong Li
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Chinese Academy of Sciences 345 LingLing Road Shanghai 200032 China
| | - Hui‐Xiong Dai
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Chinese Academy of Sciences 345 LingLing Road Shanghai 200032 China
| | - Jin‐Quan Yu
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Chinese Academy of Sciences 345 LingLing Road Shanghai 200032 China
- The Scripps Research Institute (TSRI) 10550 North Torrey Pines Road La Jolla CA 92037 USA
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25
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Shang M, Shao Q, Sun SZ, Chen YQ, Xu H, Dai HX, Yu JQ. Identification of monodentate oxazoline as a ligand for copper-promoted ortho-C-H hydroxylation and amination. Chem Sci 2017; 8:1469-1473. [PMID: 28572906 PMCID: PMC5452263 DOI: 10.1039/c6sc03383k] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [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: 07/30/2016] [Accepted: 09/21/2016] [Indexed: 01/06/2023] Open
Abstract
The use of a weakly coordinating monodentate directing group for copper mediated ortho-hydroxylation and amination reactions allows for the identification of an external oxazoline ligand as a promoter.
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Affiliation(s)
- Ming Shang
- State Key Laboratory of Organometallic Chemistry , Shanghai Institute of Organic Chemistry , Shanghai 20032 , China . ;
| | - Qian Shao
- State Key Laboratory of Organometallic Chemistry , Shanghai Institute of Organic Chemistry , Shanghai 20032 , China . ;
| | - Shang-Zheng Sun
- Department of Chemistry , Innovative Drug Research Center , Shanghai University , 99 Shangda Road , 200444 , China
| | - Yan-Qiao Chen
- Department of Chemistry , The Scripps Research Institute , 10550 N. Torrey Pines Road , La Jolla , California 92037 , USA
| | - Hui Xu
- State Key Laboratory of Organometallic Chemistry , Shanghai Institute of Organic Chemistry , Shanghai 20032 , China . ;
| | - Hui-Xiong Dai
- State Key Laboratory of Organometallic Chemistry , Shanghai Institute of Organic Chemistry , Shanghai 20032 , China . ;
| | - Jin-Quan Yu
- State Key Laboratory of Organometallic Chemistry , Shanghai Institute of Organic Chemistry , Shanghai 20032 , China . ;
- Department of Chemistry , The Scripps Research Institute , 10550 N. Torrey Pines Road , La Jolla , California 92037 , USA
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26
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Shang M, Wang X, Koo SM, Youn J, Chan JZ, Yao W, Hastings BT, Wasa M. Frustrated Lewis Acid/Brønsted Base Catalysts for Direct Enantioselective α-Amination of Carbonyl Compounds. J Am Chem Soc 2016; 139:95-98. [DOI: 10.1021/jacs.6b11908] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Ming Shang
- Department of Chemistry,
Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
| | - Xiaoxu Wang
- Department of Chemistry,
Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
| | - Seung Moh Koo
- Department of Chemistry,
Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
| | - Jennifer Youn
- Department of Chemistry,
Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
| | - Jessica Z. Chan
- Department of Chemistry,
Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
| | - Wenzhi Yao
- Department of Chemistry,
Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
| | - Brian T. Hastings
- Department of Chemistry,
Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
| | - Masayuki Wasa
- Department of Chemistry,
Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
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27
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Xu H, Zong H, Ma C, Ming X, Shang M, Li K, He X, Cao L. Evaluation of nano-magnetic fluid on malignant glioma cells. Oncol Lett 2016; 13:677-680. [PMID: 28356945 PMCID: PMC5351186 DOI: 10.3892/ol.2016.5513] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Accepted: 12/13/2016] [Indexed: 11/30/2022] Open
Abstract
The temperature variation rule of nano-magnetic fluid in the specific magnetic field and the effect on the treatment of malignant glioma were examined. The temperature variation of nano-magnetic fluid in the specific magnetic field was investigated by heating in vitro, and cell morphology was observed through optical microscopy and electron microscopy. MTT detection also was used to detect the effect of Fe3O4 nanometer magnetic fluid hyperthermia (MFH) on the proliferation of human U251 glioma cell line. The Fe3O4 nano MFH experiment was used to detect the inhibition rate of the tumor volume in nude mice with tumors. The results of the experiment showed that the heating ability of magnetic fluid was positively correlated with its concentration at the same intensity of the magnetic field. The results also indicated the prominent inhibitory effect of nanometer MFH on the proliferation of glioma cells, which was a dose-dependent relationship with nanometer magnetic fluid concentration. The hyperthermia experiment of nude mice with tumors displayed a significant inhibiting effect of Fe3O4 nanometer magnetic fluid in glioma volume. These results explain that iron (II, III) oxide (Fe3O4) nanometer MFH can inhibit the proliferation of U251 glioma cells, and has an obvious inhibitory effect on glioma volume, which plays a certain role in the treatment of brain glioma.
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Affiliation(s)
- Hongsheng Xu
- Department of Neurosurgery, Central Hospital of Xuzhou, Affiliated Hospital of Southeast University, Xuzhou, Jiangsu 221009, P.R. China
| | - Hailiang Zong
- Department of Neurosurgery, Central Hospital of Xuzhou, Affiliated Hospital of Southeast University, Xuzhou, Jiangsu 221009, P.R. China
| | - Chong Ma
- Department of Neurosurgery, Central Hospital of Xuzhou, Affiliated Hospital of Southeast University, Xuzhou, Jiangsu 221009, P.R. China
| | - Xing Ming
- Department of Neurosurgery, Central Hospital of Xuzhou, Affiliated Hospital of Southeast University, Xuzhou, Jiangsu 221009, P.R. China
| | - Ming Shang
- Department of Neurosurgery, Central Hospital of Xuzhou, Affiliated Hospital of Southeast University, Xuzhou, Jiangsu 221009, P.R. China
| | - Kai Li
- Department of Neurosurgery, Central Hospital of Xuzhou, Affiliated Hospital of Southeast University, Xuzhou, Jiangsu 221009, P.R. China
| | - Xiaoguang He
- Department of Neurosurgery, Central Hospital of Xuzhou, Affiliated Hospital of Southeast University, Xuzhou, Jiangsu 221009, P.R. China
| | - Lei Cao
- Department of Neurosurgery, Central Hospital of Xuzhou, Affiliated Hospital of Southeast University, Xuzhou, Jiangsu 221009, P.R. China
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Xu H, Zhang K, Zong H, Shang M, Li K, He X. Exosomal communication in glioma - a review. J BUON 2016; 21:1368-1373. [PMID: 28039693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Cancer research has revealed the existence of cancer stem cells (CSCs). However, the influence of the surrounding stromal cells present in the microenvironment on CSCs is still poorly understood. The latest studies on gliomas suggested that the microenvironment of human gliomas contains both glioma stem cells (GSCs) and glioma associated (GA)-mesenchymal stem cells (MSCs; (GA-MSCs). Also, studies have suggested that nano- sized vesicles, termed exosomes, have been recently observed to contribute towards intercellular communication within the tumor niche. The present review article will highlight the current view of exosomal communication in gliomas.
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Affiliation(s)
- Hongsheng Xu
- Department of Neurosurgery, Central Hospital of Xuzhou, the Affiliated Hospital of Southeast University, Xuzhou, Jiangsu, China
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Affiliation(s)
- Hui-Xiong Dai
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences
| | - Ming Shang
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences
| | - Shang-Zheng Sun
- Department of Chemistry, Innovative Drug Research Center, Shanghai University
| | - Hong-Li Wang
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences
| | - Ming-Ming Wang
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences
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Zhou F, Zhong X, Chen J, Li C, Shang M, Jiang C, Yang H, Zhao W, Liu L. Helicobacter pylori infection associated with type 2 diabetic nephropathy in patients with dyspeptic symptoms. Diabetes Res Clin Pract 2015; 110:328-34. [PMID: 26547504 DOI: 10.1016/j.diabres.2015.09.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2015] [Revised: 08/04/2015] [Accepted: 09/04/2015] [Indexed: 12/22/2022]
Abstract
AIMS The aim of this conventional case-control study was to investigate the prevalence and relationship between Helicobacter pylori infection in type 2 diabetes mellitus (DM) and diabetic nephropathy (DN). METHODS A total of 241 type 2 DM patients and 69 non-diabetic subjects with dyspeptic symptoms were enrolled in the study. Gastroduodenal lesions were observed by gastrointestinal endoscopy and the presence of H. pylori was identified by rapid urease test and serum IgG antibodies to H. pylori. According to the urinary albumin excretion rate (UAE), patients were classified into diabetes mellitus group (DM group, with UAE <30 mg/24h); diabetic nephropathy group 1 (DN group 1, with UAE 30 mg/24 h to <300 mg/24 h); and diabetic nephropathy group 2 (DN group 2 ≥ 300 mg/24 h). The 69 non-diabetic subjects were used as control group. The serum levels of inflammatory factors such as tumor necrosis factor-α (TNF-α) and interleukin (IL)-8 were determined using ELISA. RESULTS The prevalence of H. pylori infection in DN group 1 and DN group 2 was 45/72 (62.5%) and 34/53 (64.15%), respectively, which was significantly higher than in control [28/65 (43.1%)] and DM groups [42.9% (27/63)]. No significant differences of H. pylori prevalence were detected between DN groups as well as DM and control groups. Interestingly, in both DN groups, higher levels of IL-8, TNF-α and urinary albumin excretion rate were found in H. pylori positive subjects. CONCLUSIONS Diabetic nephropathy patients are more susceptible to H. pylori infection. Our data support an association between H. pylori infection and diabetic nephropathy.
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Affiliation(s)
- Fei Zhou
- Department of Nephrology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, PR China; Department of Nephrology, People's Hospital of Linzi District, Zibo, Shandong 255400, PR China
| | - Xiaoqin Zhong
- Department of Gastroenterology, People's Hospital of Linzi District, Zibo, Shandong 255400, PR China
| | - Jingbo Chen
- Department of Gastrointestinal Surgery, Qianfoshan Hospital affiliated to Shandong University, Jinan, Shandong, 250014, PR China
| | - Chunguo Li
- Department of Nephrology, People's Hospital of Linzi District, Zibo, Shandong 255400, PR China
| | - Ming Shang
- Department of Nephrology, People's Hospital of Linzi District, Zibo, Shandong 255400, PR China
| | - Cheng Jiang
- Department of Nephrology, People's Hospital of Linzi District, Zibo, Shandong 255400, PR China
| | - Hairong Yang
- Department of Nephrology, People's Hospital of Linzi District, Zibo, Shandong 255400, PR China
| | - Weidong Zhao
- Department of Gastroenterology, People's Hospital of Linzi District, Zibo, Shandong 255400, PR China
| | - Liqiu Liu
- Department of Nephrology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, PR China.
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Chu L, Shang M, Tanaka K, Chen Q, Pissarnitski N, Streckfuss E, Yu JQ. Correction to "Remote Meta-C-H Activation Using a Pyridine-Based Template: Achieving Site-Selectivity via the Recognition of Distance and Geometry". ACS Cent Sci 2015; 1:463. [PMID: 27169797 PMCID: PMC4827485 DOI: 10.1021/acscentsci.5b00359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Indexed: 06/05/2023]
Abstract
[This corrects the article DOI: 10.1021/acscentsci.5b00312.].
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Chu L, Shang M, Tanaka K, Chen Q, Pissarnitski N, Streckfuss E, Yu JQ. Remote Meta-C-H Activation Using a Pyridine-Based Template: Achieving Site-Selectivity via the Recognition of Distance and Geometry. ACS Cent Sci 2015; 1:394-399. [PMID: 27162997 PMCID: PMC4827496 DOI: 10.1021/acscentsci.5b00312] [Citation(s) in RCA: 133] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Indexed: 06/01/2023]
Abstract
The pyridyl group has been extensively employed to direct transition-metal-catalyzed C-H activation reactions in the past half-century. The typical cyclic transition states involved in these cyclometalation processes have only enabled the activation of ortho-C-H bonds. Here, we report that pyridine is adapted to direct meta-C-H activation of benzyl and phenyl ethyl alcohols through engineering the distance and geometry of a directing template. This template takes advantage of a stronger σ-coordinating pyridine to recruit Pd catalysts to the desired site for functionalization. The U-shaped structure accommodates the otherwise highly strained cyclophane-like transition state. This development illustrates the potential of achieving site selectivity in C-H activation via the recognition of distal and geometric relationship between existing functional groups and multiple C-H bonds in organic molecules.
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Affiliation(s)
- Ling Chu
- Department
of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Ming Shang
- Department
of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Keita Tanaka
- Department
of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Qinghao Chen
- Department of Process Chemistry and Department of Discovery Chemistry, Merck & Co. Inc., 126 East Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - Natalya Pissarnitski
- Department of Process Chemistry and Department of Discovery Chemistry, Merck & Co. Inc., 126 East Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - Eric Streckfuss
- Department of Process Chemistry and Department of Discovery Chemistry, Merck & Co. Inc., 126 East Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - Jin-Quan Yu
- Department
of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
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Abstract
A Cu(II)-mediated ortho-C-H hydroxylation using a removable directing group has been developed. The reaction exhibits considerable functional group tolerance. The use of O2 as an oxidant is crucial for the reactivity. Water is also found to significantly improve this reaction.
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Affiliation(s)
- Shang-Zheng Sun
- Department of Chemistry, Innovative Drug Research Center, Shanghai University , 99 Shangda Road, Shanghai 200444, China
| | - Ming Shang
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 Lingling Road, Shanghai 200032, China
| | - Hong-Li Wang
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 Lingling Road, Shanghai 200032, China
| | - Hai-Xia Lin
- Department of Chemistry, Innovative Drug Research Center, Shanghai University , 99 Shangda Road, Shanghai 200444, China
| | - Hui-Xiong Dai
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 Lingling Road, Shanghai 200032, China
| | - Jin-Quan Yu
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 Lingling Road, Shanghai 200032, China.,Department of Chemistry, The Scripps Research Institute , 10550 North Torrey Pines Road, La Jolla, California 92037, United States
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Duan C, Tong J, Shang M, Nikodemski S, Sanders M, Ricote S, Almansoori A, OHayre R. Readily processed protonic ceramic fuel cells with high performance at low temperatures. Science 2015. [DOI: 10.1126/science.aab3987] [Citation(s) in RCA: 703] [Impact Index Per Article: 78.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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35
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Affiliation(s)
- Hui Xu
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of
Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Ming Shang
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of
Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Hui-Xiong Dai
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of
Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Jin-Quan Yu
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of
Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
- Department
of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
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Shang M, Sands M, Bolch W. SU-C-303-03: Dosimetric Model of the Beagle Needed for Pre-Clinical Testing of Radiopharmaceuticals. Med Phys 2015. [DOI: 10.1118/1.4923820] [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: 11/07/2022] Open
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Abstract
A new Cu(II)-catalyzed oxidative coupling of arenes with malonates has been developed using an amide-oxazoline directing group. The reaction proceeds via C(sp(2))-H activation and malonate coupling, followed by intramolecular oxidative N-C bond formation. A variety of arenes bearing different substituents are shown to be compatible with this reaction.
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Affiliation(s)
- Hong-Li Wang
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 Lingling Road, Shanghai 200032, China
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Abstract
Cu-catalyzed coupling of aryl C-H bonds with arylboron reagents was accomplished using a readily removable directing group, which provides a useful method for the synthesis of biaryl compounds. The distinct transmetalation step in this Cu-catalyzed C-H coupling with aryl borons provides unique evidence for the formation of an aryl cupperate intermediate.
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Affiliation(s)
- Ming Shang
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 Lingling Road, Shanghai 200032, China
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40
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Abstract
Cu(II)-promoted ortho alkynylation of arenes and heteroarenes with terminal alkynes has been developed to prepare aryl alkynes. A variety of arenes and terminal alkynes bearing different substituents are compatible with this reaction, thus providing an alternative disconnection to Sonogashira coupling.
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Affiliation(s)
- Ming Shang
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 Lingling Road, Shanghai 200032, China
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41
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Shang M, Sun SZ, Wang HL, Laforteza BN, Dai HX, Yu JQ. Exceedingly Fast Copper(II)-Promotedortho CH Trifluoromethylation of Arenes using TMSCF3. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201404822] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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42
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Shang M, Sun SZ, Wang HL, Laforteza BN, Dai HX, Yu JQ. Exceedingly fast copper(II)-promoted ortho C-H trifluoromethylation of arenes using TMSCF₃. Angew Chem Int Ed Engl 2014; 53:10439-42. [PMID: 25100616 DOI: 10.1002/anie.201404822] [Citation(s) in RCA: 146] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2014] [Indexed: 01/19/2023]
Abstract
The direct ortho-trifluoromethylation of arenes, including heteroarenes, with TMSCF3 has been accomplished by a copper(II)-promoted C-H activation reaction which completes within 30 minutes. Mechanistic investigations are consistent with the involvement of C-H activation, rather than a simple electrophilic aromatic substitution (SE Ar), as the key step.
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Affiliation(s)
- Ming Shang
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Shanghai 200032 (China)
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Zong H, Cao L, Ma C, Zhao J, Ming X, Shang M, Xu H. Association between the G870A polymorphism of Cyclin D1 gene and glioma risk. Tumour Biol 2014; 35:8095-101. [PMID: 24840634 DOI: 10.1007/s13277-014-1981-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2013] [Accepted: 11/13/2013] [Indexed: 12/14/2022] Open
Abstract
Previous studies have shown the association of the Cyclin D1 (CCND1) G870A polymorphism with glioma risk, but the findings are inconsistent and inconclusive. To shed some light on the findings across individual studies and acquire a quantitative assessment of this association, we conducted a meta-analysis of all published case-control studies thus far. Four independent studies with a total of 690 cases and 1,014 controls were identified after a systematic search of the PubMed, Embase, Web of Science, and Wanfang databases. The strength of the association between the CCND1 G870A polymorphism and glioma risk was estimated by the pooled odds ratios (ORs) with 95 % confidence intervals (95 %CIs). Subgroup analysis by ethnicity was also performed. Overall, a statistically significant association was found between the CCND1 G870A polymorphism and glioma risk in three genetic models (ORA vs. G = 1.178, 95 %CI 1.025-1.354, P OR = 0.021; ORAA vs. GG = 1.328, 95 %CI 1.007-1.750, P OR = 0.045; ORAA + AG vs. GG = 1.253, 95 %CI 1.006-1.516, P OR = 0.044). In subgroup analysis, the pooled ORs suggested that the CCND1 G870A polymorphism was associated with an increased risk of glioma in Caucasians under the heterozygote and dominant genetic models (ORAG vs. GG = 1.329, 95 %CI 1.001-1.766, P OR = 0.049; ORAA + AG vs. GG = 1.332, 95 %CI 1.019-1.740, P OR = 0.036). The meta-analysis suggests that the CCND1 G870A polymorphism is a risk factor for the development of glioma.
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Affiliation(s)
- Hailiang Zong
- Department of Neurosurgery, Affiliated Xuzhou Hospital of Southeast University, Xuzhou, Jiangsu, 221009, China
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Shang M, Sun SZ, Dai HX, Yu JQ. Cu(II)-Mediated C–H Amidation and Amination of Arenes: Exceptional Compatibility with Heterocycles. J Am Chem Soc 2014; 136:3354-7. [DOI: 10.1021/ja412880r] [Citation(s) in RCA: 292] [Impact Index Per Article: 29.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Ming Shang
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of
Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Shang-Zheng Sun
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of
Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Hui-Xiong Dai
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of
Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Jin-Quan Yu
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of
Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
- Department
of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
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Shang M, Lin L, Ma L, Yin L. Investigation on the suitability of the International Association of Diabetes and Pregnancy Study Group diagnostic criteria for gestational diabetes mellitus in China. J OBSTET GYNAECOL 2014; 34:141-5. [DOI: 10.3109/01443615.2013.832177] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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46
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Xu HS, Zong HL, Shang M, Ming X, Zhao JP, Ma C, Cao L. MiR-324-5p inhibits proliferation of glioma by target regulation of GLI1. Eur Rev Med Pharmacol Sci 2014; 18:828-832. [PMID: 24706306] [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: 06/03/2023]
Abstract
OBJECTIVES To study the effects of the miR-324-5p on the glioma cells proliferation via the targeted regulation of the glioma-associated oncogene 1. METHODS The luciferase reporter gene was used to test whether the glioma-associated oncogene 1 was the target of the miR-324-5p microRNA. The glioma-associated oncogene 1 expression was detected by Western blot. The proliferation and cell cycle were evaluated by MTT assay and flow cytometry. RESULTS The glioma-associated oncogene 1 is a target of the miR-324-5p. An over-expressed miR-324-5p could reduce the cell survival rate and increase the G1/G0 phase rate in the glioma cell lines. CONCLUSIONS The miR-324-5p can inhibit proliferation of the glioma cells via the targeted regulation of the glioma-associated oncogene 1.
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Affiliation(s)
- H-S Xu
- Department of Neurosurgery, the Central Hospital of Xuzhou, Xuzhou Clinical School of Xuzhou Medical College, Affiliated Hospital of Southeast University, Xuzhou, Jiangsu, People's Republic of China.
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Abstract
The Ru(II)-catalyzed ortho-C-H amination directed by a weakly coordinating amide auxiliary with O-benzoyl hydroxylamines at room temperature has been achieved. This reaction is compatible with heterocycles including pyrazole, thiophene, benzothiophene, furan, benzofuran, and indole.
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Affiliation(s)
- Ming Shang
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 Lingling Road, Shanghai 200032, China, and Department of Chemistry, The Scripps Research Institute , 10550 North Torrey Pines Road, La Jolla, California 92037, United States
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Shang M, Noël T, Wang Q, Hessel V. Packed-Bed Microreactor for Continuous-Flow Adipic Acid Synthesis from Cyclohexene and Hydrogen Peroxide. Chem Eng Technol 2013. [DOI: 10.1002/ceat.201200703] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Liu T, Zhang X, Shang M, Zhang Y, Xia B, Niu M, Liu Y, Pang D. Dysregulated expression of Slug, vimentin, and E-cadherin correlates with poor clinical outcome in patients with basal-like breast cancer. J Surg Oncol 2012; 107:188-94. [PMID: 22886823 DOI: 10.1002/jso.23240] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2012] [Accepted: 07/18/2012] [Indexed: 12/29/2022]
Abstract
BACKGROUND Among the different types of breast cancer, basal-like breast cancer (BLBC) has an extremely poor prognosis due to its high rate of recurrence and metastasis. The present study aimed to investigate the correlation between the expression of Slug, E-cadherin, and vimentin, and the clinicopathological characteristics and prognosis of patients with BLBC. We further inferred from these findings whether Slug leads to a poor prognosis in patients with BLBC through epithelial-mesenchymal transition (EMT). METHODS Immunohistochemistry was performed for 441 patients with breast cancer to determine the expression levels of Slug, E-cadherin, and vimentin. The correlation between protein expression and clinicopathological characteristics of patients with BLBC was evaluated, and these patients were followed up to determine survival rate. RESULTS High Slug and low E-cadherin expression in BLBC patients closely correlated with histological grade, lymph node metastasis, tumor-node-metastasis (TNM) stage, and lymphatic vessel metastasis. Survival analysis revealed that the poor prognosis of BLBC is associated with TNM stage, high Slug and vimentin expression, and low E-cadherin levels. CONCLUSIONS High Slug expression is closely correlated with poor prognosis in patients with BLBC. We speculate that this may be attributed to the involvement of Slug in the EMT of BLBC.
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Affiliation(s)
- Tong Liu
- Department of Breast Surgery, The Third Affiliated Hospital of Harbin Medical University, Harbin, China
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Björkegren J, Hägg S, Maleki S, Shang M, Michoel T, Skogsberg J. 295 ATHEROSCLEROSIS REGRESSION IN A MOUSE MODEL WITH HUMAN-LIKE HYPERCHOLESTEROLEMIA. ATHEROSCLEROSIS SUPP 2011. [DOI: 10.1016/s1567-5688(11)70296-3] [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: 10/18/2022]
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