201
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Affiliation(s)
- E. Swann
- Molecular and Materials Modelling, Data61 CSIRO , Docklands, Victoria, Australia
| | - B. Sun
- Molecular and Materials Modelling, Data61 CSIRO , Docklands, Victoria, Australia
| | - D. M. Cleland
- Molecular and Materials Modelling, Data61 CSIRO , Docklands, Victoria, Australia
| | - A. S. Barnard
- Molecular and Materials Modelling, Data61 CSIRO , Docklands, Victoria, Australia
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202
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Zhang Y, Han B, Sun B, Yu K, Chu T, Qian J, Chang Q. 92P Expression of TNFRII in serum is correlated with the significant risk of subcentimeter lung adenocarcinoma. J Thorac Oncol 2018. [DOI: 10.1016/s1556-0864(18)30367-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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203
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Ma ZJ, Hu SL, Wang SS, Guo X, Zhang XN, Sun B, Chen LM. [Effects and underlying mechanism of berberine on renal tubulointerstitial injury in diabetic rats]. Zhonghua Yi Xue Za Zhi 2018; 96:3072-3077. [PMID: 27784448 DOI: 10.3760/cma.j.issn.0376-2491.2016.38.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the effect of Berberine on renal tubulointerstitial injury and its potential mechanism in rats with type 2 diabetes mellitus (T2DM). Methods: Thirty Sprague-Dawley rats were randomly divided into 3 groups: normal control rats (NC group), diabetic rats without drug treatment (DM group), diabetic rats treated with Berberine (BBR group) for 8 weeks. At the end of the study, blood and urine samples were collected for biochemical examination, and tubulointerstitial fibrosis was quantified by Hematoxylin and Eosin (HE) and Masson staining. The expressions of E-cadherin (E-cad), α-smooth muscle actin (α-SMA), nuclear factor-κB (NF-κB) and monocyte chemoattractant protein 1 (MCP-1) were detected by immunohistochemistry analysis, real-time polymerase chain reaction (RT-PCR) and Western blot analysis. Results: 24 h urinary microalbumin (mAlb)[(170.5±58.1) vs (253.7±53.0) mg]and urinary N-acetyl-glucosaminidase (NAG)[(33.5±7.2) vs (49.5±9.3)U/L]in diabetic rats were significantly decreased by BBR treatment(both P<0.05). The apparent renal tubulointerstitial injury was found in the DM group, which was ameliorated by BBR treatment. The expression of α-SMA, NF-κB and MCP-1 were significantly decreased, accompanied by increased expression of E-cad in BBR-treated DM rats (all P<0.05). Conclusion: BBR could ameliorate renal tubulointerstitial injury in diabetic rats, the mechanism of which may be associated with the amelioration of epithelial-mesenchymal transition (EMT) through suppressing the expression of the NF-κB and MCP-1.
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Affiliation(s)
- Z J Ma
- Key Laboratory of Hormones and Development (Ministry of Health), Metabolic Diseases Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin 300070, China
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204
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Lyu XJ, Li L, Kong R, Sun B. [Research advances in anatomical study on the diffusion routs of acute pancreatitis]. Zhonghua Wai Ke Za Zhi 2018. [PMID: 29534421 DOI: 10.3760/cma.j.issn.0529-5815.2018.03.014] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The retroperitoneum space comprises anterior pararenal space, perirenal space and posterior pararenal space. Pancreas is a retroperitoneal organ and located in the anterior pararenal space of the retroperitoneum. Left and right sides anterior pararenal space are potentially communicated, which contains many adipose tissues and a little connective tissues. The exacerbation of acute pancreatitis results in the lesion spreading into adjacent area of pancreas in the retroperitoneal space. In addition, the lesion could spread into bare area of stomach, posterior colonic region, subperitoneal space and pelvic retroperitoneal space through the same anatomical space or communicating space. Due to the fascia destruction by pancreatic enzymes or the lesion directly diffuse through the weak fascia, the lesion could also diffuse across fascia to perirenal space, posterior pararenal space, the peritoneal cavity and abdominal wall. Finally, a series of complications are developed. The diffusion paths of acute pancreatitis are complex and diverse. Familiarity with these diffusion paths is useful for determining the severity and guiding therapy.
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Affiliation(s)
- X J Lyu
- Department of Pancreatic and Biliary Surgery, First Affiliated Hospital of Harbin Medical University, Harbin 150001, China
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205
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Sun B, Guo B, Wu B, Kang J, Deng X, Zhang Z, Fan Y. Characteristics, management, and outcome of primary hyperparathyroidism at a single clinical center from 2005 to 2016. Osteoporos Int 2018; 29:635-642. [PMID: 29198075 DOI: 10.1007/s00198-017-4322-7] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Accepted: 11/17/2017] [Indexed: 10/18/2022]
Abstract
UNLABELLED This study presents the clinical and biochemical profiles of patients with PHPT between 2005 and 2016 at our center. Most PHPT patients in China show symptomatic features. The number of symptomatic and asymptomatic patients increased during that time, and the number of individuals with parathyroid carcinoma is now increasing. INTRODUCTION Over the last decade, the prevalence of primary hyperparathyroidism (PHPT) has increased sharply, and the number of individuals with parathyroid cancer is still trending upward. Little is known about the clinical outlook of the disease over the last decade in China. The aim of this study was to describe the clinical characteristics of PHPT patients at our center from January 2005 to December 2016. METHODS Two hundred sixty patients with PHPT visiting Shanghai Jiao Tong University Affiliated Sixth People's Hospital were enrolled retrospectively. The clinical manifestations and biochemical abnormalities of these patients were analyzed. RESULTS Among all patients, 73.1% had symptomatic PHPT, while the number of symptomatic and asymptomatic patients increased 1 to 2.5 times and 1.5 to 3 times, respectively, from 2005 to 2016. Bone pain and single adenoma were the most frequent signs and pathological results. The patients with parathyroid carcinoma over the last 5 years accounted for 90% (9/10) of all parathyroid carcinoma patients from 2005 to 2016, and parathyroid carcinoma patients had higher levels of serum calcium, parathyroid hormone (PTH), and serum creatinine (P < 0.05) than parathyroid hyperplasia and parathyroid adenoma patients. CONCLUSIONS Most patients with PHPT in China still exhibit classic clinical and biochemical features. Both symptomatic and asymptomatic patients have increased over the last 12 years. Although the proportion of parathyroid carcinoma was small, a noticeable upward tendency was observed at our center.
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Affiliation(s)
- B Sun
- Department of General Surgery, Center of Thyroid and Parathyroid, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai, 200233, China
| | - B Guo
- Department of General Surgery, Center of Thyroid and Parathyroid, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai, 200233, China
| | - B Wu
- Department of General Surgery, Center of Thyroid and Parathyroid, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai, 200233, China
| | - J Kang
- Department of General Surgery, Center of Thyroid and Parathyroid, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai, 200233, China
| | - X Deng
- Department of General Surgery, Center of Thyroid and Parathyroid, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai, 200233, China
| | - Z Zhang
- Department of Osteoporosis and Bone Diseases and Genetic Research Unit, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai, 200233, China
| | - Y Fan
- Department of General Surgery, Center of Thyroid and Parathyroid, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai, 200233, China.
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206
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Li Y, Fei J, Li G, Xie H, Yang Y, Li J, Xu Y, Sun B, Xia J, Fu X, Li J. Supramolecular Assembly of Photosystem II and Adenosine Triphosphate Synthase in Artificially Designed Honeycomb Multilayers for Photophosphorylation. ACS Nano 2018; 12:1455-1461. [PMID: 29361225 DOI: 10.1021/acsnano.7b07841] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Plant thylakoids have a typical stacking structure, which is the site of photosynthesis, including light-harvesting, water-splitting, and adenosine triphosphate (ATP) production. This stacking structure plays a key role in exchange of substances with extremely high efficiency and minimum energy consumption through photosynthesis. Herein we report an artificially designed honeycomb multilayer for photophosphorylation. To mimic the natural thylakoid stacking structure, the multilayered photosystem II (PSII)-ATP synthase-liposome system is fabricated via layer-by-layer (LbL) assembly, allowing the three-dimensional distributions of PSII and ATP synthase. Under light illumination, PSII splits water into protons and generates a proton gradient for ATP synthase to produce ATP. Moreover, it is found that the ATP production is extremely associated with the numbers of PSII layers. With such a multilayer structure assembled via LbL, one can better understand the mechanism of PSII and ATP synthase integrated in one system, mimicking the photosynthetic grana structure. On the other hand, such an assembled system can be considered to improve the photophosphorylation.
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Affiliation(s)
- Yue Li
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology , Beijing 100190, China
- College of Life Science, Jilin University , Changchun 130012, China
| | - Jinbo Fei
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China
| | - Guangle Li
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China
- University of Chinese Academic of Sciences , Beijing 100049, China
| | - Haiming Xie
- National & Local United Engineering Laboratory for Power Battery, Department of Chemistry, Northeast Normal University , Changchun 130024, China
| | - Yang Yang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology , Beijing 100190, China
| | - Jieling Li
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China
| | - Youqian Xu
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China
- University of Chinese Academic of Sciences , Beijing 100049, China
| | - Bingbing Sun
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China
- University of Chinese Academic of Sciences , Beijing 100049, China
| | - Jiarui Xia
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China
- University of Chinese Academic of Sciences , Beijing 100049, China
| | - Xueqi Fu
- College of Life Science, Jilin University , Changchun 130012, China
| | - Junbai Li
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China
- University of Chinese Academic of Sciences , Beijing 100049, China
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207
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Li R, Guiney LM, Chang CH, Mansukhani ND, Ji Z, Wang X, Liao YP, Jiang W, Sun B, Hersam MC, Nel AE, Xia T. Surface Oxidation of Graphene Oxide Determines Membrane Damage, Lipid Peroxidation, and Cytotoxicity in Macrophages in a Pulmonary Toxicity Model. ACS Nano 2018; 12:1390-1402. [PMID: 29328670 PMCID: PMC5834379 DOI: 10.1021/acsnano.7b07737] [Citation(s) in RCA: 160] [Impact Index Per Article: 26.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
While two-dimensional graphene oxide (GO) is used increasingly in biomedical applications, there is uncertainty on how specific physicochemical properties relate to biocompatibility in mammalian systems. Although properties such as lateral size and the colloidal properties of the nanosheets are important, the specific material properties that we address here is the oxidation state and reactive surface groups on the planar surface. In this study, we used a GO library, comprising pristine, reduced (rGO), and hydrated GO (hGO), in which quantitative assessment of the hydroxyl, carboxyl, epoxy, and carbon radical contents was used to study the impact on epithelial cells and macrophages, as well as in the murine lung. Strikingly, we observed that hGO, which exhibits the highest carbon radical density, was responsible for the generation of cell death in THP-1 and BEAS-2B cells as a consequence of lipid peroxidation of the surface membrane, membrane lysis, and cell death. In contrast, pristine GO had lesser effects, while rGO showed extensive cellular uptake with minimal effects on viability. In order to see how these in vitro effects relate to adverse outcomes in the lung, mice were exposed to GOs by oropharyngeal aspiration. Animal sacrifice after 40 h demonstrated that hGO was more prone than other materials to generate acute lung inflammation, accompanied by the highest lipid peroxidation in alveolar macrophages, cytokine production (LIX, MCP-1), and LDH release in bronchoalveolar lavage fluid. Pristine GO showed less toxicity, whereas rGO had minimal effects. We demonstrate that the surface oxidation state and carbon radical content play major roles in the induction of toxicity by GO in mammalian cells and the lung.
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Affiliation(s)
- Ruibin Li
- School for Radiological and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou, 215123, China
| | - Linda M. Guiney
- Departments of Materials Science and Engineering, Chemistry, and Medicine, Northwestern University, Evanston, Illinois 60208, United States
| | - Chong Hyun Chang
- California NanoSystems Institute, University of California, University of California, Los Angeles, California 90095, United States
| | - Nikhita D. Mansukhani
- Departments of Materials Science and Engineering, Chemistry, and Medicine, Northwestern University, Evanston, Illinois 60208, United States
| | - Zhaoxia Ji
- California NanoSystems Institute, University of California, University of California, Los Angeles, California 90095, United States
| | - Xiang Wang
- California NanoSystems Institute, University of California, University of California, Los Angeles, California 90095, United States
| | - Yu-Pei Liao
- Division of NanoMedicine, Department of Medicine, University of California, University of California, Los Angeles, California 90095, United States
| | | | - Bingbing Sun
- Division of NanoMedicine, Department of Medicine, University of California, University of California, Los Angeles, California 90095, United States
| | - Mark C. Hersam
- Departments of Materials Science and Engineering, Chemistry, and Medicine, Northwestern University, Evanston, Illinois 60208, United States
| | - Andre E. Nel
- Division of NanoMedicine, Department of Medicine, University of California, University of California, Los Angeles, California 90095, United States
- Center for Environmental Implications of Nanotechnology, University of California, University of California, Los Angeles, California 90095, United States
- California NanoSystems Institute, University of California, University of California, Los Angeles, California 90095, United States
- Corresponding Author: Tian Xia, Ph.D.; and Andre Nel, Ph.D., Department of Medicine, Division of NanoMedicine, UCLA School of Medicine, 52-175, CHS, 10833 Le Conte Ave, Los Angeles, CA 90095-1680. Tel: (310) 983-3359, Fax: (310) 206-8107, ,
| | - Tian Xia
- Division of NanoMedicine, Department of Medicine, University of California, University of California, Los Angeles, California 90095, United States
- Center for Environmental Implications of Nanotechnology, University of California, University of California, Los Angeles, California 90095, United States
- California NanoSystems Institute, University of California, University of California, Los Angeles, California 90095, United States
- Corresponding Author: Tian Xia, Ph.D.; and Andre Nel, Ph.D., Department of Medicine, Division of NanoMedicine, UCLA School of Medicine, 52-175, CHS, 10833 Le Conte Ave, Los Angeles, CA 90095-1680. Tel: (310) 983-3359, Fax: (310) 206-8107, ,
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208
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Sun B, Riegler H, Dai L, Eickelmann S, Li Y, Li G, Yang Y, Li Q, Fu M, Fei J, Li J. Directed Self-Assembly of Dipeptide Single Crystal in a Capillary. ACS Nano 2018; 12:1934-1939. [PMID: 29337528 DOI: 10.1021/acsnano.7b08925] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Controlled growth of one-dimensional nanostructures is playing a key role in creating types of materials for functional devices. Here, we report procedures for controlled assembly of the dipeptide diphenylalanine (FF) into aligned and ultralong single crystals in a capillary. With the evaporation of solvent, nucleation of the crystal occurred in the confined region, and the crystal grew continuously with a supply of molecules from the concentration gradient system inside the capillary. Based on the "Knudsen regime", an ultralong aligned individual FF single crystal possessing an active optical waveguide property at macroscopic length scale could be obtained. Moreover, capillary is also an effective microdevice to investigate the disassembly process of the FF single crystals. This strategy has potentials to broaden the range of applications of aligned organic nanomaterials.
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Affiliation(s)
- Bingbing Sun
- University of Chinese Academy of Sciences , Beijing 100049, China
| | - Hans Riegler
- Max Planck Institute of Colloids and Interfaces , Potsdam 14424, Germany
| | | | - Stephan Eickelmann
- Max Planck Institute of Colloids and Interfaces , Potsdam 14424, Germany
| | | | - Guangle Li
- University of Chinese Academy of Sciences , Beijing 100049, China
| | | | - Qi Li
- University of Chinese Academy of Sciences , Beijing 100049, China
| | - Meifang Fu
- University of Chinese Academy of Sciences , Beijing 100049, China
| | | | - Junbai Li
- University of Chinese Academy of Sciences , Beijing 100049, China
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209
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Cheng L, Sun B, Xiong Y, Hu L, Gao L, Lv Q, Zhou M, Li J, Chen X, Zhang W, Zhou HH. The minor alleles HCP5 rs3099844 A and PSORS1C1 rs3131003 G are associated with allopurinol-induced severe cutaneous adverse reactions in Han Chinese: a multicentre retrospective case-control clinical study. Br J Dermatol 2018; 178:e191-e193. [PMID: 29193002 DOI: 10.1111/bjd.16151] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- L Cheng
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Centre, Sun Yat-sen University, Guangzhou, 510060, China
| | - B Sun
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, 410008, China.,Institute of Clinical Pharmacology, Hunan Key Laboratory of Pharmacogenetics, Central South University, Changsha, 410078, China
| | - Y Xiong
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, 410008, China.,Institute of Clinical Pharmacology, Hunan Key Laboratory of Pharmacogenetics, Central South University, Changsha, 410078, China
| | - L Hu
- Department of Pharmacy, Peking University People's Hospital, Beijing, 100044, China
| | - L Gao
- Department of Pharmacy, Department of Oncology, Cancer Institute, Changsha Central Hospital, Changsha, 410004, China
| | - Q Lv
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, 410008, China.,Institute of Clinical Pharmacology, Hunan Key Laboratory of Pharmacogenetics, Central South University, Changsha, 410078, China
| | - M Zhou
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - J Li
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - X Chen
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, 410008, China.,Institute of Clinical Pharmacology, Hunan Key Laboratory of Pharmacogenetics, Central South University, Changsha, 410078, China
| | - W Zhang
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, 410008, China.,Institute of Clinical Pharmacology, Hunan Key Laboratory of Pharmacogenetics, Central South University, Changsha, 410078, China
| | - H-H Zhou
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, 410008, China.,Institute of Clinical Pharmacology, Hunan Key Laboratory of Pharmacogenetics, Central South University, Changsha, 410078, China
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210
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Liu C, Xie Y, Sun B, Geng F, Zhang F, Guo Q, Wu H, Yu B, Wu J, Yu X, Kong W, Zhang H. MUC1- and Survivin-based DNA Vaccine Combining Immunoadjuvants CpG and interleukin-2 in a Bicistronic Expression Plasmid Generates Specific Immune Responses and Antitumour Effects in a Murine Colorectal Carcinoma Model. Scand J Immunol 2018; 87:63-72. [PMID: 29193199 DOI: 10.1111/sji.12633] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Accepted: 11/16/2017] [Indexed: 12/30/2022]
Abstract
DNA vaccination is a promising cancer treatment due to its safety, but poor immunogenicity limits its application. However, immunoadjuvants, heterogeneous prime-boost strategies and combination with conventional treatments can be used to improve the antitumour immune effects. A CpG motif and interleukin-2 (IL-2) cytokine are often used as adjuvants. In this study, a DNA vaccine containing a CpG motif was constructed to evaluate its adjuvant effect. The results show that the cytotoxicity of the DNA vaccine was increased fivefold, and survival lifetime was prolonged twofold by the CpG motif adjuvant. To simplify the industrial production process, a bicistronic plasmid was constructed to carry the fusion genes of survivin/MUC1 (MS) and IL-2 and with a CpG motif in its backbone. The results showed that the antitumour effect of the bicistronic vaccine was the same as that of the two vaccine co-injected regime. Furthermore, the vaccine could suppress metastatic tumour foci by 69.1% in colorectal carcinoma-bearing mice. Moreover, the vaccine induced survivin- and MUC1-specific immune responses in splenocytes and induced the immune promoting factor CCL-19 and GM-CSF upregulated, while metastatic-associated factor MMP-9 and immunosuppressing factor PD-L1 downregulated in tumour tissue. When combining the vaccine with the chemotherapy drug oxaliplatin, the survival was prolonged by about 2.5-fold. In conclusion, the DNA vaccine containing a CpG motif in bicistronic form showed good effects on colorectal cancer by inhibiting both tumour growth and metastasis, and combination with oxaliplatin could improve its antitumour effects.
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Affiliation(s)
- C Liu
- National Engineering Laboratory for AIDS Vaccine, College of Life Science, Jilin University, Changchun, China
| | - Y Xie
- National Engineering Laboratory for AIDS Vaccine, College of Life Science, Jilin University, Changchun, China
| | - B Sun
- National Engineering Laboratory for AIDS Vaccine, College of Life Science, Jilin University, Changchun, China.,Key Laboratory for Molecular enzymology and Engineering, College of Life Science, Jilin University, Changchun, China
| | - F Geng
- National Engineering Laboratory for AIDS Vaccine, College of Life Science, Jilin University, Changchun, China
| | - F Zhang
- National Engineering Laboratory for AIDS Vaccine, College of Life Science, Jilin University, Changchun, China
| | - Q Guo
- National Engineering Laboratory for AIDS Vaccine, College of Life Science, Jilin University, Changchun, China
| | - H Wu
- National Engineering Laboratory for AIDS Vaccine, College of Life Science, Jilin University, Changchun, China.,Key Laboratory for Molecular enzymology and Engineering, College of Life Science, Jilin University, Changchun, China
| | - B Yu
- National Engineering Laboratory for AIDS Vaccine, College of Life Science, Jilin University, Changchun, China.,Key Laboratory for Molecular enzymology and Engineering, College of Life Science, Jilin University, Changchun, China
| | - J Wu
- National Engineering Laboratory for AIDS Vaccine, College of Life Science, Jilin University, Changchun, China.,Key Laboratory for Molecular enzymology and Engineering, College of Life Science, Jilin University, Changchun, China
| | - X Yu
- National Engineering Laboratory for AIDS Vaccine, College of Life Science, Jilin University, Changchun, China.,Key Laboratory for Molecular enzymology and Engineering, College of Life Science, Jilin University, Changchun, China
| | - W Kong
- National Engineering Laboratory for AIDS Vaccine, College of Life Science, Jilin University, Changchun, China.,Key Laboratory for Molecular enzymology and Engineering, College of Life Science, Jilin University, Changchun, China
| | - H Zhang
- National Engineering Laboratory for AIDS Vaccine, College of Life Science, Jilin University, Changchun, China.,Key Laboratory for Molecular enzymology and Engineering, College of Life Science, Jilin University, Changchun, China
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211
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Sun B, Fiskus W, Qian Y, Rajapakshe K, Raina K, Coleman KG, Crew AP, Shen A, Saenz DT, Mill CP, Nowak AJ, Jain N, Zhang L, Wang M, Khoury JD, Coarfa C, Crews CM, Bhalla KN. BET protein proteolysis targeting chimera (PROTAC) exerts potent lethal activity against mantle cell lymphoma cells. Leukemia 2018; 32:343-352. [PMID: 28663582 DOI: 10.1038/leu.2017.207] [Citation(s) in RCA: 113] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Revised: 06/12/2017] [Accepted: 06/19/2017] [Indexed: 11/09/2022]
Abstract
Bromodomain extraterminal protein (BETP) inhibitors transcriptionally repress oncoproteins and nuclear factor-κB (NF-κB) target genes that undermines the growth and survival of mantle cell lymphoma (MCL) cells. However, BET bromodomain inhibitor (BETi) treatment causes accumulation of BETPs, associated with reversible binding and incomplete inhibition of BRD4 that potentially compromises the activity of BETi in MCL cells. Unlike BETi, BET-PROTACs (proteolysis-targeting chimera) ARV-825 and ARV-771 (Arvinas, Inc.) recruit and utilize an E3-ubiquitin ligase to effectively degrade BETPs in MCL cells. BET-PROTACs induce more apoptosis than BETi of MCL cells, including those resistant to ibrutinib. BET-PROTAC treatment induced more perturbations in the mRNA and protein expressions than BETi, with depletion of c-Myc, CDK4, cyclin D1 and the NF-κB transcriptional targets Bcl-xL, XIAP and BTK, while inducing the levels of HEXIM1, NOXA and CDKN1A/p21. Treatment with ARV-771, which possesses superior pharmacological properties compared with ARV-825, inhibited the in vivo growth and induced greater survival improvement than the BETi OTX015 of immune-depleted mice engrafted with MCL cells. Cotreatment of ARV-771 with ibrutinib or the BCL2 antagonist venetoclax or CDK4/6 inhibitor palbociclib synergistically induced apoptosis of MCL cells. These studies highlight promising and superior preclinical activity of BET-PROTAC than BETi, requiring further in vivo evaluation of BET-PROTAC as a therapy for ibrutinib-sensitive or -resistant MCL.
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Affiliation(s)
- B Sun
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - W Fiskus
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Y Qian
- Arvinas LLC, New Haven, CT, USA
| | - K Rajapakshe
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX, USA
| | - K Raina
- Arvinas LLC, New Haven, CT, USA
| | | | | | - A Shen
- Arvinas LLC, New Haven, CT, USA
| | - D T Saenz
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - C P Mill
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - A J Nowak
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - N Jain
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - L Zhang
- Department of Lymphoma/Myeloma, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - M Wang
- Department of Lymphoma/Myeloma, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - J D Khoury
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - C Coarfa
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX, USA
| | - C M Crews
- Department of Molecular, Cellular, and Developmental Biology, Yale University, New Haven, CT, USA
- Department of Chemistry, Yale University, New Haven, CT, USA
- Department of Pharmacology, Yale University, New Haven, CT, USA
| | - K N Bhalla
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
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212
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Bai C, Pan Y, Wang D, Cai F, Yan S, Zhao Z, Sun B. Genome-wide association analysis of residual feed intake in Junmu No. 1 White pigs. Anim Genet 2017; 48:686-690. [PMID: 29076177 DOI: 10.1111/age.12609] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/24/2017] [Indexed: 11/28/2022]
Abstract
Residual feed intake (RFI) is a measure of feed efficiency. Pigs with low RFI have reduced feed costs without compromising their growth. For marker-assisted selection, it is helpful to identify genes or genetic markers associated with RFI in animals with improved feed efficiency at an early age. Using Illumina's PorcineSNP60 BeadChip, we performed a pilot genome-wide association study of 217 Junmu No. 1 white male pigs phenotyped for RFI. Two-step and one-step methods were used separately to identify associated SNPs. Both methods obtained similar results. Twelve SNPs were identified as significantly associated with RFI at a Bonferroni adjusted P-level < 9.7 × 10-7 , and 204 were found to have suggestive (moderately significant) association with RFI at P < 5 × 10-5 . NMBR, KCTD16, ASGR1, PRKCQ, PITRM1, TIAM1 and RND3 were identified as candidate genes for RFI.
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Affiliation(s)
- C Bai
- Department of Animal Science, Jilin University, 5333 Xi'an Road, Changchun, China
| | - Y Pan
- Department of Animal Science, Jilin University, 5333 Xi'an Road, Changchun, China
| | - D Wang
- Department of Animal Science, Jilin University, 5333 Xi'an Road, Changchun, China
| | - F Cai
- Department of Animal Science, Jilin University, 5333 Xi'an Road, Changchun, China
| | - S Yan
- Department of Animal Science, Jilin University, 5333 Xi'an Road, Changchun, China
| | - Z Zhao
- Department of Animal Science, Jilin University, 5333 Xi'an Road, Changchun, China
| | - B Sun
- Department of Animal Science, Jilin University, 5333 Xi'an Road, Changchun, China
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213
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Sun B, Li Q, Riegler H, Eickelmann S, Dai L, Yang Y, Perez-Garcia R, Jia Y, Chen G, Fei J, Holmberg K, Li J. Self-Assembly of Ultralong Aligned Dipeptide Single Crystals. ACS Nano 2017; 11:10489-10494. [PMID: 28945958 DOI: 10.1021/acsnano.7b05800] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Oriented arrangement of single crystals plays a key role in improving the performance of their functional devices. Herein we describe a method for the exceptionally fast fabrication (mm/min) of ultralong aligned dipeptide single crystals (several centimeters). It combines an induced nucleation step with a continuous withdrawal of substrate, leading to specific evaporation/composition conditions at a three-phase contact line, which makes the growth process controllable. These aligned dipeptide fibers possess a uniform cross section with active optical waveguiding properties that can be used as waveguiding materials. The approach provides guidance for the controlled arrangement of organic single crystals, a family of materials with considerable potential applications in large-scale functional devices.
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Affiliation(s)
- Bingbing Sun
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China
- University of Chinese Academy of Sciences , Beijing 100049, China
| | - Qi Li
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China
- University of Chinese Academy of Sciences , Beijing 100049, China
| | - Hans Riegler
- Max Planck Institute of Colloids and Interfaces , Potsdam 14424, Germany
| | - Stephan Eickelmann
- Max Planck Institute of Colloids and Interfaces , Potsdam 14424, Germany
| | - Luru Dai
- National Center for Nanoscience and Technology, Chinese Academy of Sciences , Beijing 100190, China
| | - Yang Yang
- National Center for Nanoscience and Technology, Chinese Academy of Sciences , Beijing 100190, China
| | | | - Yi Jia
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China
| | - Guoxiang Chen
- Max Planck Institute of Colloids and Interfaces , Potsdam 14424, Germany
| | - Jinbo Fei
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China
| | - Krister Holmberg
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology , 412 96 Göteborg, Sweden
| | - Junbai Li
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China
- University of Chinese Academy of Sciences , Beijing 100049, China
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214
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Sun J, Sun B, Gao Y, He F, Yang L, Wang M, Zhou W. Composition and Variation Analysis of the T Cell Receptor β-Chain Complementarity Determining Region 3 Repertoire in Neonatal Sepsis. Scand J Immunol 2017; 86:418-423. [PMID: 28891256 DOI: 10.1111/sji.12614] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Accepted: 09/04/2017] [Indexed: 12/19/2022]
Abstract
T cell receptor (TCR) diversity is clearly related to protection from infection. However, the characteristics of TCR diversity in neonates are not clear. In this study, we investigated the TCR diversity of neonates with sepsis. Twenty neonates with severe sepsis and eight matched neonates without infection were enrolled in the study. For the neonates with sepsis, EDTA-anticoagulated blood was collected on day 1 after the diagnosis of sepsis and on day 7 of treatment. For the neonates without infection, blood was collected one time. DNA was extracted from peripheral blood mononuclear cells. The complementarity determining region 3 (CDR3) gene was analysed by multiplex PCR and high-throughput sequencing. The CDR3 types and lengths were similar in patients and healthy controls. There was a significant difference in VJ gene usage among the three groups. Compared to the healthy neonates, the neonates with sepsis had different VJ pairs and generated different clonotypes. Although the TCR β-chain diversity was generally lower in the neonates with sepsis, there was no significant difference in TCR β-chain diversity between the patients and the healthy controls. Our data showed the characteristics of the TCR repertoire in neonates with sepsis, which represents a potentially valuable data set. This result is useful for understanding neonatal susceptibility to infection.
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Affiliation(s)
- J Sun
- Department of Clinical Immunology, Children's Hospital of Fudan University, Shanghai, China
| | - B Sun
- Department of Clinical Immunology, Children's Hospital of Fudan University, Shanghai, China
| | - Y Gao
- Department of Ultrasound, Children's Hospital of Fudan University, Shanghai, China
| | - F He
- BGI Genomics, BGI-Shenzhen, Shenzhen, China
| | - L Yang
- Department of Neonatology, Children's Hospital of Fudan University, Shanghai, China
| | - M Wang
- Department of Neonatology, Children's Hospital of Fudan University, Shanghai, China
| | - W Zhou
- Department of Neonatology, Children's Hospital of Fudan University, Shanghai, China
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215
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Sun B, Gibson T, Weiss R. 72 Predictors of Serious Outcomes After Syncope: A Systematic Review and Meta-Analysis. Ann Emerg Med 2017. [DOI: 10.1016/j.annemergmed.2017.07.097] [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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216
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Kea B, Lin A, Fu R, Olshansky B, Raitt M, Lip G, Sun B. 106 Stroke Prophylaxis and 30-Day Clinical Outcomes After US Emergency Department Diagnosis and Discharge for Atrial Fibrillation. Ann Emerg Med 2017. [DOI: 10.1016/j.annemergmed.2017.07.132] [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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217
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Sun B, Brooks E, Komaki R, Liao Z, Jeter M, McAleer M, Allen P, Balter P, Welsh J, O'Reilly M, Gomez D, Hahn S, Roth J, Mehran R, Heymach J, Chang J. 7-year Follow-Up Outcomes After Stereotactic Ablation Radiation Therapy for Stage I NSCLC: Results of a Phase 2 Clinical Trial. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.1792] [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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218
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Sun J, Li DM, Huang J, Liu J, Sun B, Fu DL, Mao GS. The correlation between the expression of ADAM17, EGFR and Ki-67 in malignant gliomas. Eur Rev Med Pharmacol Sci 2017; 21:4595-4599. [PMID: 29131255] [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: 06/07/2023]
Abstract
OBJECTIVE The aim of this study was to analyze the depolymerization in metalloproteinase (ADAM17), epidermal growth factor receptor (EGFR), the expression of Ki-67 of glioma patients and the correlations with malignancy. PATIENTS AND METHODS 53 brain glioma samples resected from patients who had surgery from April 2015 to May 2016 at Chinese People's Armed Police Force General Hospital were selected. According to the degree of malignancy: 22 patients were divided into a deterioration group (stage I to II); 31 patients in highly deteriorated group (stage III to IV); 14 brain tissue samples of traumatic decompression from the hospital as control group. The immunohistochemical method was used to detect the expression of ADAM17, EGFR, and Ki-67 in three groups, and the correlation between the expression of ADAM17, EGFR, and Ki-67. Thus, the stages of malignancy were analyzed. RESULTS ADAM17, EGFR, and Ki-67 had no expression or weak expression in the control group, and increased in the low stage of deterioration group; the differences were statistically significant (p < 0.05). The positive expression rates of ADAM17, EGFR, and KI-67 were significantly higher in the high deterioration group than that in the control group (p < 0.05). Moreover, the analysis showed that the expression of ADAM17, EGFR, and Ki-67 were positively correlated with the stage of malignancy (R = 0.823, p = 0.000; R = 0.804, p = 0.000; R = 0.811, p = 0.000). CONCLUSIONS The results suggested that there was a significant positive correlation between ADAM17, EGFR, and Ki-67 with the stage of malignancy.
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Affiliation(s)
- J Sun
- Departments of Neurosurgery, Chinese People's Armed Police Force General Hospital, Beijing, China.
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219
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Huang Z, Sun B, Wu S, Meng X, Cong Y, Shen G, Song S. A Nomogram for Predicting Survival in Patients With Breast Cancer Brain Metastasis. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.634] [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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220
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Sun B, Lupulescu-Mann N, Charlesworth C, Kim H, Hartung D, Deyo R, McConnell K. 231 Does Prescription Opioid Shopping Increase Mortality and Overdose Rates? Ann Emerg Med 2017. [DOI: 10.1016/j.annemergmed.2017.07.453] [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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221
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Contreras J, Chundury A, Reynoso F, Zhao T, Sun B, Roach M, Robinson C, Bradley J. Proton Therapy Reirradiation for Thoracic Recurrences: Toxicity and Outcomes. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.1676] [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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222
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Tu Q, Hao J, Zhou X, Yan L, Dai H, Sun B, Yang D, An S, Lv L, Jiao B, Chen C, Lai R, Shi P, Zhao X. CDKN2B deletion is essential for pancreatic cancer development instead of unmeaningful co-deletion due to juxtaposition to CDKN2A. Oncogene 2017; 37:128-138. [PMID: 28892048 PMCID: PMC5759028 DOI: 10.1038/onc.2017.316] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [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: 01/24/2017] [Revised: 06/07/2017] [Accepted: 07/31/2017] [Indexed: 12/28/2022]
Abstract
Pancreatic cancer is among the deadliest malignancies; however, the genetic events that lead to pancreatic carcinogenesis in adults remain unclear. In vivo models in which these genetic alterations occur in adult animals may more accurately reflect the features of human cancer. In this study, we demonstrate that inactivation of Cdkn2b (p15ink4b) is necessary for induction of pancreatic cancer by oncogenic KRASG12D expression and inactivation of Tp53 and Cdkn2a in adult mouse pancreatic ductal cells (P60 or older). KRASG12D overexpression in these cells activated transforming growth factor-β signaling and expression of CDKN2B, which, along with CDKN2A, led to cellular senescence and protected cells from KRAS-mediated transformation via inhibition of retinoblastoma phosphorylation. These results show a critical role of CDKN2B inactivation in pancreatic carcinogenesis, and provide a useful adult animal model by genetic engineering via lentiviral delivery.
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Affiliation(s)
- Q Tu
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan Province, Kunming Institute of Zoology, Kunming, China.,Kunming College of Life Science, University of Chinese Academy of Sciences, Kunming, China
| | - J Hao
- State Key Laboratory of Genetic Resources and Evolution, Laboratory of Evolutionary and Functional Genomics, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, China
| | - X Zhou
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan Province, Kunming Institute of Zoology, Kunming, China.,Kunming College of Life Science, University of Chinese Academy of Sciences, Kunming, China
| | - L Yan
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan Province, Kunming Institute of Zoology, Kunming, China.,Kunming Primate Research Center, Chinese Academy of Sciences, Kunming, China
| | - H Dai
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan Province, Kunming Institute of Zoology, Kunming, China
| | - B Sun
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan Province, Kunming Institute of Zoology, Kunming, China.,Kunming College of Life Science, University of Chinese Academy of Sciences, Kunming, China
| | - D Yang
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan Province, Kunming Institute of Zoology, Kunming, China.,Kunming College of Life Science, University of Chinese Academy of Sciences, Kunming, China
| | - S An
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan Province, Kunming Institute of Zoology, Kunming, China.,Kunming College of Life Science, University of Chinese Academy of Sciences, Kunming, China
| | - L Lv
- Kunming Primate Research Center, Chinese Academy of Sciences, Kunming, China
| | - B Jiao
- State Key Laboratory of Genetic Resources and Evolution, Laboratory of Evolutionary and Functional Genomics, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, China
| | - C Chen
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan Province, Kunming Institute of Zoology, Kunming, China
| | - R Lai
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan Province, Kunming Institute of Zoology, Kunming, China
| | - P Shi
- State Key Laboratory of Genetic Resources and Evolution, Laboratory of Evolutionary and Functional Genomics, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, China
| | - X Zhao
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan Province, Kunming Institute of Zoology, Kunming, China.,Kunming Primate Research Center, Chinese Academy of Sciences, Kunming, China.,KIZ-SU Joint Laboratory of Animal Model and Drug Development, College of Pharmaceutical Sciences, Soochow University, Suzhou, China
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223
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Bao CD, Sun B, Lan L, Qiao H, Zhang DF, Liu XY, Wang J, Zhao YS. [Interaction between family history of diabetes and hyperlipidemia on risk of diabetes in population with normotension in Harbin: a cross-sectional study]. Zhonghua Liu Xing Bing Xue Za Zhi 2017. [PMID: 28651396 DOI: 10.3760/cma.j.issn.0254-6450.2017.05.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the interaction between family history of diabetes and hyperlipidemia on the risk of diabetes in population with normotension. Methods: A multistage stratified probability random sampling was conducted to select a representative sample of urban residents aged 20-74 years in Harbin. A total of 376 diabetes patients with normotension and 3 692 residents with normal blood pressure, normal fasting glucose, and normal 2 hours glucose from OGTT were surveyed. The interaction was evaluated by using crossover analysis and additive model. Results: Multivariate logistic regression analysis indicated that there was a possible additive interaction between family history of diabetes and hyperlipidemia on the risk of diabetes. The relative excess risk due to the interaction, the attributable proportion due to the interaction, and the synergy index were 1.97 (95%CI:-0.32-4.26), 0.30 (95%CI: 0.03-0.57), and 1.54 (95%CI: 0.96-2.47), respectively. There were significant combination effects between family history of diabetes and high both total cholesterol and triglyceride, isolated high total cholesterol, and isolated high triglyceride levels; the ORs were 10.55 (95%CI: 5.62-19.80), 7.81 (95%CI: 3.65-16.71) and 5.13 (95%CI: 3.22-8.16), respectively. Conclusion: There might be synergistic effect between family history of diabetes and hyperlipidemia on the risk of diabetes in population with normotension.
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Affiliation(s)
- C D Bao
- Public Health College, Harbin Medical University, Harbin 150081, China
| | - B Sun
- Department of Chronic Non-communicable Disease Control and Prevention, Harbin Municipal Center for Disease Control and Prevention, Harbin 150056, China
| | - L Lan
- Department of Chronic Non-communicable Disease Control and Prevention, Harbin Municipal Center for Disease Control and Prevention, Harbin 150056, China
| | - H Qiao
- Department of Endocrinology, The 2nd Affiliated Hospital of Harbin Medical University, Harbin 150001, China
| | - D F Zhang
- Department of Chronic Non-communicable Disease Control and Prevention, Harbin Municipal Center for Disease Control and Prevention, Harbin 150056, China
| | - X Y Liu
- Public Health College, Harbin Medical University, Harbin 150081, China
| | - J Wang
- Department of Chronic Non-communicable Disease Control and Prevention, Harbin Municipal Center for Disease Control and Prevention, Harbin 150056, China
| | - Y S Zhao
- Public Health College, Harbin Medical University, Harbin 150081, China
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224
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Menke M, Sun B, Catov J. Infertility and menstrual cycle history are not associated with maternal subclinical cardiovascular disease 4 to 12 years after delivery. Fertil Steril 2017. [DOI: 10.1016/j.fertnstert.2017.07.991] [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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225
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Liu Q, Jiang Y, Shao L, Yang P, Sun B, Yang S, Chen D. CRISPR/Cas9-based efficient genome editing in Staphylococcus aureus. Acta Biochim Biophys Sin (Shanghai) 2017; 49:764-770. [PMID: 28910979 DOI: 10.1093/abbs/gmx074] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Accepted: 06/23/2017] [Indexed: 12/24/2022] Open
Abstract
Staphylococcus aureus is an important pathogenic bacterium prevalent in nosocomial infections and associated with high morbidity and mortality rates, which arise from the significant pathogenicity and multi-drug resistance. However, the typical genetic manipulation tools used to explore the relevant molecular mechanisms of S. aureus have multiple limitations: leaving a scar in the genome, comparatively low gene-editing efficiency, and prolonged experimental period. Here, we present a single-plasmid based on the clustered regularly interspaced short palindromic repeat (CRISPR)/CRISPR-associated (Cas) system which allows rapid and efficient chromosomal manipulation in S. aureus. The plasmid carries the cas9 gene under the control of the constitutive promoter Pxyl/tet, a single guide RNA-encoding sequence transcribed via a strong promoter Pspac, and donor DNA used to repair the double strand breaks. The function of the CRISPR/Cas9 vector was demonstrated by deleting the tgt gene and the rocA gene, and by inserting the erm R cassette in S. aureus. This research establishes a CRISPR/Cas9 genome editing tool in S. aureus, which enables marker-free, scarless and rapid genetic manipulation, thus accelerating the study of gene function in S. aureus.
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Affiliation(s)
- Qi Liu
- School of Pharmacy, Fudan University, Shanghai 201203, China
- Shanghai Institute of Pharmaceutical Industry, Shanghai 201203, China
| | - Yu Jiang
- Key Laboratory of Synthetic Biology, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China
- Shanghai Research and Development Center of Industrial Biotechnology, Shanghai 201206, China
| | - Lei Shao
- Shanghai Institute of Pharmaceutical Industry, Shanghai 201203, China
| | - Ping Yang
- School of Pharmacy, Fudan University, Shanghai 201203, China
- Shanghai Institute of Pharmaceutical Industry, Shanghai 201203, China
| | - Bingbing Sun
- Shanghai Institute of Pharmaceutical Industry, Shanghai 201203, China
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Sheng Yang
- Key Laboratory of Synthetic Biology, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China
- Shanghai Research and Development Center of Industrial Biotechnology, Shanghai 201206, China
| | - Daijie Chen
- Shanghai Institute of Pharmaceutical Industry, Shanghai 201203, China
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China
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226
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Sun B, Wang L, Li Q, He P, Liu H, Wang H, Yang Y, Li J. Bis(pyrene)-Doped Cationic Dipeptide Nanoparticles for Two-Photon-Activated Photodynamic Therapy. Biomacromolecules 2017; 18:3506-3513. [DOI: 10.1021/acs.biomac.7b00780] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Bingbing Sun
- Beijing
National Laboratory for Molecular Sciences, CAS Key Laboratory of
Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Lei Wang
- CAS
Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology, Beijing 100190, China
| | - Qi Li
- Beijing
National Laboratory for Molecular Sciences, CAS Key Laboratory of
Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Pingping He
- CAS
Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology, Beijing 100190, China
| | - Huiling Liu
- CAS
Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology, Beijing 100190, China
| | - Hao Wang
- CAS
Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology, Beijing 100190, China
| | - Yang Yang
- CAS
Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology, Beijing 100190, China
| | - Junbai Li
- Beijing
National Laboratory for Molecular Sciences, CAS Key Laboratory of
Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
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227
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Qiu W, Sun B, He F, Zhang Y. MTA-induced Notch activation enhances the proliferation of human dental pulp cells by inhibiting autophagic flux. Int Endod J 2017; 50 Suppl 2:e52-e62. [DOI: 10.1111/iej.12811] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2016] [Accepted: 06/27/2017] [Indexed: 12/26/2022]
Affiliation(s)
- W. Qiu
- Graduate School at Shenzhen; Tsinghua University; Shenzhen China
- Department of Chemistry; Tsinghua University; Beijing China
- Key Lab in Healthy Science and Technology; Division of Life Science; Graduate School at Shenzhen; Tsinghua University; Shenzhen China
| | - B. Sun
- Graduate School at Shenzhen; Tsinghua University; Shenzhen China
- Key Lab in Healthy Science and Technology; Division of Life Science; Graduate School at Shenzhen; Tsinghua University; Shenzhen China
| | - F. He
- Department of Stomatology; the Second Clinical Medical College; Shenzhen People's Hospital; Jinan University; Shenzhen China
| | - Y. Zhang
- Key Lab in Healthy Science and Technology; Division of Life Science; Graduate School at Shenzhen; Tsinghua University; Shenzhen China
- Open FIESTA Center; Tsinghua University; Shenzhen China
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228
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Liu WX, Chen ZH, Ling L, Ren YT, Sun B, Yang F, Cui F, Huang XS. [Characteristics of repetitive nerve stimulation in 53 cases of amyotrophic lateral sclerosis]. Zhonghua Yi Xue Za Zhi 2017; 97:2297-2301. [PMID: 28780847 DOI: 10.3760/cma.j.issn.0376-2491.2017.29.014] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the feature of repetitive nerve stimulation (RNS) in patients with amyotrophic lateral sclerosis (ALS) and correlation between RNS and clinical features and electromyography (EMG) findings of the corresponding muscle. Methods: Needle EMG and RNS were performed in 53 patients with ALS, who were recruited into Department of Neurology of Chinese PLA general hospital during April to December in 2016. Decrement of the compond muscle action potential (CMAP) in response to RNS of different nerves and stimulus frequencies was compared. The effects of gender, age of onset, disease duration, region of onset, ALS functional rating scale-revised (ALSFRS-R) and rate of disease progression (ΔFS) on the decrement were analyzed. Results: 49.1% of patients with ALS had decremental responses to low frequency RNS (LF-RNS) in accessory nerve, which was lower in ulnar nerve (4.3%) and common peroneal nerve (2.6%). Decremental responses of accessory nerve at 3 Hz were observed in 49.1% of patients with ALS, more frequent than 30.2% at 1 Hz. None of the patients had increased responses to high frequency RNS. Patients with upper-limb-onset, longer disease duration and lower ALSFRS-R tended to have more frequent decrement of CMAP in response to RNS. The decrement with LF-RNS of accessory nerve was in concert with neurogenic damage of sternocleidomastoid muscle with needle EMG (r=0.365, P=0.007). There were 3 patients who had decremental responses to LF-RNS in accessory nerve without clinical involvement and neurogenic damage of sternocleidomastoid muscle. Conclusions: There is significant decrement of CMAP in response to LF-RNS of accessory nerve in patients with ALS, which may reveal neuromuscular junction (NMJ) impairment. It may indicated a dying-back pattern of disease progression which derived from motor neuron terminal or NMJ to neuronal soma that some patients with ALS have decremental responses in RNS without clinical involvement and neurogenic damage of sternocleidomastoid muscle.
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Affiliation(s)
- W X Liu
- Department of Neurology, Chinese PLA General Hospital, Beijing 100853, China
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Sun B, Yu P. 597 Nutrient profiles, sub-fractions, energy values and degradation and digestion kinetics and their relationship with inherent molecular structures in chickpeas. J Anim Sci 2017. [DOI: 10.2527/asasann.2017.597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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230
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Fu M, Li Q, Sun B, Yang Y, Dai L, Nylander T, Li J. Disassembly of Dipeptide Single Crystals Can Transform the Lipid Membrane into a Network. ACS Nano 2017; 11:7349-7354. [PMID: 28657720 DOI: 10.1021/acsnano.7b03468] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Coupling between cytoskeleton and membranes is critical to cell movement as well as organelle formation. Here, we demonstrate that self-assembled single crystals of a dipeptide, diphenylalanine (FF), can interact with liposomes to form cytoskeleton-like structures. Under a physiological condition, disassembly of FF crystals deforms and translocates supported lipid membrane. The system exhibits similar dynamic characteristics to the endoplasmic reticulum (ER) network in cells. This bottom-up system thus indicates that external matter can participate in the deformation of liposomes, and disassembly of the nanostructures enables a system with distinct dynamic behaviors.
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Affiliation(s)
- Meifang Fu
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Lab of Colloid, Interface and Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences , 100190 Beijing, China
- University of Chinese Academy of Sciences , 100049 Beijing, China
| | - Qi Li
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Lab of Colloid, Interface and Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences , 100190 Beijing, China
- University of Chinese Academy of Sciences , 100049 Beijing, China
| | - Bingbing Sun
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Lab of Colloid, Interface and Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences , 100190 Beijing, China
- University of Chinese Academy of Sciences , 100049 Beijing, China
| | - Yang Yang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology , 100190 Beijing, China
| | - Luru Dai
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology , 100190 Beijing, China
| | - Tommy Nylander
- Division of Physical Chemistry, Department of Chemistry, Lund University , P.O. Box 124, SE-22100 Lund, Sweden
| | - Junbai Li
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Lab of Colloid, Interface and Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences , 100190 Beijing, China
- University of Chinese Academy of Sciences , 100049 Beijing, China
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231
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Wang R, Sun B, Li XY, He HY, Tang X, Zhan QY, Tong ZH. [Predictive values of different critical scoring systems for mortality in patients with severe acute respiratory failure supported by extracorporeal membrane oxygenation]. Zhonghua Jie He He Hu Xi Za Zhi 2017; 39:698-703. [PMID: 27600419 DOI: 10.3760/cma.j.issn.1001-0939.2016.09.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To investigate the predictive values of different critical scoring systems for mortality in patients with severe acute respiratory failure (ARF) supported by venovenous extracorporeal membrane oxygenation (VV-ECMO). METHODS Forty-two patients with severe ARF supported by VV-ECMO were enrolled from November 2009 to July 2015.There were 25 males and 17 females. The mean age was (44±18) years (rang 18-69 years). Acute Physiology and Chronic Health Evaluation (APACHE) Ⅱ, Ⅲ, Ⅳ, Simplified Acute Physiology Score Ⅱ (SAPS) Ⅱ, Sequential Organ Failure Assessment (SOFA), ECMO net, PRedicting dEath for SEvere ARDS on VVECMO (PRESERVE), and Respiratory ECMO Survival Prediction (RESP) scores were collected within 6 hours before VV-ECMO support. The patients were divided into the survivors group (n=17) and the nonsurvivors group (n=25) by survival at 180 d after receiving VV-ECMO. The patient clinical characteristics and aforementioned scoring systems were compared between groups. Scoring systems for predicting prognosis were assessed using the area under the receiver-operating characteristic (ROC) curve. The Kaplan-Meier method was used to draw the surviving curve, and the survival of the patients was analyzed by the Log-rank test. The risk factors were assessed for prognosis by multiple logistic regression analysis. RESULTS (1) Positive end expiratory pressure (PEEP) 6 hours prior to VV-ECMO support in the survivors group [(9.7±5.0)cmH2O, (1 cmH2O=0.098 kPa)] was lower than that in the nonsurvivors group [(13.2±5.4)cmH2O, t=-2.134, P=0.039]. VV-ECMO combination with continuous renal replacement therapy(CRRT) in the nonsurvivors group (32%) was used more than in the survivors group (6%, χ(2)=4.100, P=0.043). Duration of VV-ECMO support in the nonsurvivors group [(15±13) d] was longer than that in the survivors group [(12±11)d, t=-2.123, P=0.041]. APACHE Ⅱ, APACHE Ⅲ, APACHE Ⅳ, ECMO net, PRESERVE, and RESP scores in the survivors group were superior to the nonsurvivors group (all P<0.05). (2) The areas under the ROC curve of APACHE Ⅳ score for predicting death were largest (0.792±0.076, 95%CI: 0.643-0.940, P<0.05). The best cutoff point was 48 for APACHE Ⅳ score with a sensitivity of 92.0%, specificity of 64.7%, and overall accuracy of 81%. (3) Kaplan-Meier survival analysis showed that 180 d survival rate of the low APACHE Ⅳ score group was higher than the high APACHE Ⅳ score group (χ(2)=11.331, P<0.05). (4) Multiple logistic regression analysis showed that PEEP (OR=1.555, 95%CI: 1.097-2.204, P<0.05), APACHE Ⅳ score (OR=1.152, 95%CI: 1.021-1.301, P<0.05), and PRESERVE score (OR=4.984, 95%CI: 1.531-16.227, P<0.05) were independent risk factors associated with mortality of patients supported by VV-ECMO. CONCLUSION The critical scoring systems proved to have good prognostic ability in predicting hospital mortality for severe ARF patients supported by VV-ECMO. Compared to other scoring systems, APACHE Ⅳ score system predicted more accurately, while specific scoring systems in predicting hospital mortality showed no advantage.
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Affiliation(s)
- R Wang
- Department of Respiratory and Critical Care Medicine, Beijing Chaoyang Hospital, Capital Medical University, Beijing Institute of Respiratory Medicine, Beijing Key Laboratory of Respiratory and Pulmonary Circulation, Beijing Engineering Research Center for Diagnosis and Treatment of Respiratory and Critical Care Medicine (Beijing Chaoyang Hospital), Beijing 100020, China
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Deng L, Tang J, Yang H, Cheng C, Lu S, Jiang R, Sun B. MTA1 modulated by miR-30e contributes to epithelial-to-mesenchymal transition in hepatocellular carcinoma through an ErbB2-dependent pathway. Oncogene 2017; 36:3976-3985. [PMID: 28288133 DOI: 10.1038/onc.2016.491] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Revised: 11/26/2016] [Accepted: 11/28/2016] [Indexed: 12/17/2022]
Abstract
MTA1 is a metastasis-associated protein, which is essential to epithelial-to-mesenchymal transition (EMT). However, information concerning its up- and downstream regulation is rare. We investigated its upstream regulation and downstream effector in human hepatocellular carcinoma (HCC). In total, 94 paired HCC and adjacent tissue samples were involved in the study, and the results indicated that decreased miR-30e levels were associated with increased MTA1 levels in human HCC. miR-30e exerted its regulation of MTA1 transcription by binding to its 3'-untranslated region, and was negatively associated with EMT. Furthermore, significantly higher expression of MTA1 was associated with overexpression of v-erb-b2 avian erythroblastic leukemia viral oncogene homolog 2 (ErbB2) in human HCC, and MTA1 can promote transcription of ErbB2 by binding with histone deacetylase 2 (HDAC2) and acting as a promoter. The EMT promotion effect caused by MTA1 largely depended on ErbB2, and reducing the activity of ErbB2 can significantly attenuate EMT promotion by causing overexpression of MTA1 both in vitro and in vivo. In general, downregulation of miR-30e can increase levels of MTA1 in human HCC, and furthermore promote cell invasion and metastasis by promoting ErbB2.
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Affiliation(s)
- L Deng
- Key Laboratory on Living Donor Liver Transplantation, Ministry of Health, Department of Liver Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - J Tang
- Key Laboratory on Living Donor Liver Transplantation, Ministry of Health, Department of Liver Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - H Yang
- Department of Hematology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - C Cheng
- Department of Immunology, Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - S Lu
- Department of Immunology, Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - R Jiang
- Key Laboratory on Living Donor Liver Transplantation, Ministry of Health, Department of Liver Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - B Sun
- Key Laboratory on Living Donor Liver Transplantation, Ministry of Health, Department of Liver Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, China
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Sun B, Ji Z, Liao YP, Chang CH, Wang X, Ku J, Xue C, Mirshafiee V, Xia T. Enhanced Immune Adjuvant Activity of Aluminum Oxyhydroxide Nanorods through Cationic Surface Functionalization. ACS Appl Mater Interfaces 2017; 9:21697-21705. [PMID: 28590715 DOI: 10.1021/acsami.7b05817] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Aluminum-salt-based vaccine adjuvants are prevailingly used in FDA-approved vaccines for the prevention of infectious diseases for over eighty years. Despite their safe applications, the mechanisms regarding how the material characteristics affect the interactions at nano-bio interface and immunogenicity remain unclear. Recently, studies have indicated that the activation of NLRP3 inflammasome plays a critical role in inducing adjuvant effects that are controlled by the inherent shape and hydroxyl contents of aluminum oxyhydroxide (AlOOH) nanoparticles; however, the detailed relationship between surface properties and adjuvant effects for these materials remains unknown. Thus, we engineered AlOOH nanorods (ALNRs) with controlled surface functionalization and charge to assess their effects on the activation of NLRP3 inflammasome in vitro and the potentiation of immunogenicity in vivo. It is demonstrated that NH2-functionalized ALNRs exhibited higher levels of cellular uptake, lysosomal damage, oxidative stress, and NLRP3 inflammasome activation than pristine and SO3H-functionalized ALNRs in cells. This structure-activity relationship also correlates with the adjuvant activity of the material using ovalbumin (OVA) in a mouse vaccination model. This study demonstrates that surface functionalization of ALNRs is critical for rational design of aluminum-based adjuvants to boost antigen-specific immune responses for more effective and long-lasting vaccination.
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Affiliation(s)
- Bingbing Sun
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, and ⊥School of Life Science and Biotechnology, Dalian University of Technology , 2 Linggong Road, 116024 Dalian, China
- Division of NanoMedicine, Department of Medicine, §California NanoSystems Institute, and ∥Department of Ecology and Evolutionary Biology, University of California , Los Angeles, California 90095, United States
| | - Zhaoxia Ji
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, and ⊥School of Life Science and Biotechnology, Dalian University of Technology , 2 Linggong Road, 116024 Dalian, China
- Division of NanoMedicine, Department of Medicine, §California NanoSystems Institute, and ∥Department of Ecology and Evolutionary Biology, University of California , Los Angeles, California 90095, United States
| | - Yu-Pei Liao
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, and ⊥School of Life Science and Biotechnology, Dalian University of Technology , 2 Linggong Road, 116024 Dalian, China
- Division of NanoMedicine, Department of Medicine, §California NanoSystems Institute, and ∥Department of Ecology and Evolutionary Biology, University of California , Los Angeles, California 90095, United States
| | - Chong Hyun Chang
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, and ⊥School of Life Science and Biotechnology, Dalian University of Technology , 2 Linggong Road, 116024 Dalian, China
- Division of NanoMedicine, Department of Medicine, §California NanoSystems Institute, and ∥Department of Ecology and Evolutionary Biology, University of California , Los Angeles, California 90095, United States
| | - Xiang Wang
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, and ⊥School of Life Science and Biotechnology, Dalian University of Technology , 2 Linggong Road, 116024 Dalian, China
- Division of NanoMedicine, Department of Medicine, §California NanoSystems Institute, and ∥Department of Ecology and Evolutionary Biology, University of California , Los Angeles, California 90095, United States
| | - Justine Ku
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, and ⊥School of Life Science and Biotechnology, Dalian University of Technology , 2 Linggong Road, 116024 Dalian, China
- Division of NanoMedicine, Department of Medicine, §California NanoSystems Institute, and ∥Department of Ecology and Evolutionary Biology, University of California , Los Angeles, California 90095, United States
| | - Changying Xue
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, and ⊥School of Life Science and Biotechnology, Dalian University of Technology , 2 Linggong Road, 116024 Dalian, China
- Division of NanoMedicine, Department of Medicine, §California NanoSystems Institute, and ∥Department of Ecology and Evolutionary Biology, University of California , Los Angeles, California 90095, United States
| | - Vahid Mirshafiee
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, and ⊥School of Life Science and Biotechnology, Dalian University of Technology , 2 Linggong Road, 116024 Dalian, China
- Division of NanoMedicine, Department of Medicine, §California NanoSystems Institute, and ∥Department of Ecology and Evolutionary Biology, University of California , Los Angeles, California 90095, United States
| | - Tian Xia
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, and ⊥School of Life Science and Biotechnology, Dalian University of Technology , 2 Linggong Road, 116024 Dalian, China
- Division of NanoMedicine, Department of Medicine, §California NanoSystems Institute, and ∥Department of Ecology and Evolutionary Biology, University of California , Los Angeles, California 90095, United States
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234
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Su L, Sun B, Hao Q, Dong B. THE ASSOCIATION BETWEEN INFLAMMATORY BIOMARKERS AND FRAILTY SYNDROME AMONG CHINESE OLD PEOPLE. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.5116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Affiliation(s)
- L. Su
- The Center of Gerontology and Geriatrics, West China Medical School / West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - B. Sun
- The Center of Gerontology and Geriatrics, West China Medical School / West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Q. Hao
- The Center of Gerontology and Geriatrics, West China Medical School / West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - B. Dong
- The Center of Gerontology and Geriatrics, West China Medical School / West China Hospital, Sichuan University, Chengdu, Sichuan, China
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235
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Sun B, Zhang Y, Ding M, Xi Q, Liu G, Li Y, Liu D, Chen X. Effects of Moringa oleifera leaves as a substitute for alfalfa meal on nutrient digestibility, growth performance, carcass trait, meat quality, antioxidant capacity and biochemical parameters of rabbits. J Anim Physiol Anim Nutr (Berl) 2017; 102:194-203. [PMID: 28603877 DOI: 10.1111/jpn.12678] [Citation(s) in RCA: 14] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2016] [Accepted: 12/20/2016] [Indexed: 12/18/2022]
Abstract
This contribution reports the effects of Moringa oleifera leaves (MOLs) meal on the growth performances, nutrient digestibility, carcass trait, meat quality, antioxidant capacity and biochemical parameters of growing New Zealand white rabbits. The MOL was substituted for alfalfa meal at levels of 0, 10%, 20% and 30% to obtain respective diets MOL0, MOL10, MOL20 and MOL30. Each treatment was replicated five times with 10 rabbits per replicate. Results showed the average daily weight gain (ADWG) and feed conversion ratio (FCR) of rabbits fed MOL20 diet were significantly better (p < 0.05) than those of other three dietary groups. Liver and spleen index of rabbits fed MOL20 and MOL30 diets was significantly higher (p < 0.05) than that of the groups fed with lower M. oleifera leaves (MOL0, MOL10). The meat drip loss of rabbits fed with diet MOL10 was significantly lower (p < 0.05) than that of rabbits fed other diets. All rabbits fed MOL dietary groups had lower (p < 0.05) shear force of longissimus dorsi than the group without M. oleifera leaves. No significant differences were found in the digestibility of crude fibre (CF), crude fat (EE), ash, crude protein (CP) and nitrogen-free extract (NFE) among the dietary groups. Moringa oleifera leaves also have a significant impact on serum albumin (ALB), low-density lipoprotein cholesterol (LDLC), triiodothyroxine (T3 ) and tetraiodothyroxine (T4 ) values and the activity of superoxide dismutase (SOD) and catalase (CAT) in serum and liver. The results indicated that M. oleifera leaves could be developed as a good feed source, and it not only could substitute for alfalfa meal well but also has a significant effect on growth performance, meat quality, antioxidant and biochemical parameters of rabbits.
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Affiliation(s)
- B Sun
- College of Animal Science, South China Agricultural University, Guangzhou, China.,Guangdong Province Research Center of Woody Forage Engineering Technology, Guangzhou, China
| | - Y Zhang
- College of Animal Science, South China Agricultural University, Guangzhou, China.,Guangdong Province Research Center of Woody Forage Engineering Technology, Guangzhou, China
| | - M Ding
- Guangdong Province Research Center of Woody Forage Engineering Technology, Guangzhou, China
| | - Q Xi
- College of Animal Science, South China Agricultural University, Guangzhou, China.,Guangdong Province Research Center of Woody Forage Engineering Technology, Guangzhou, China
| | - G Liu
- College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Y Li
- College of Animal Science, South China Agricultural University, Guangzhou, China
| | - D Liu
- College of Animal Science, South China Agricultural University, Guangzhou, China.,Guangdong Province Research Center of Woody Forage Engineering Technology, Guangzhou, China
| | - X Chen
- Guangdong Province Research Center of Woody Forage Engineering Technology, Guangzhou, China
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Sun B, Brown RC, Burns TG, Murdaugh D, Palasis S, Jones RA. Differences in Activation and Deactivation in Children with Sickle Cell Disease Compared with Demographically Matched Controls. AJNR Am J Neuroradiol 2017; 38:1242-1247. [PMID: 28408626 DOI: 10.3174/ajnr.a5170] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Accepted: 02/06/2017] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Declines in both functional activation and functional connectivity have been reported in patients with sickle cell disease. In this study, we derived the functional and default mode responses to a word stem paradigm in age-, ethnicity-, and background-matched subjects with sickle cell disease and control groups, with the aim of testing whether both networks were similarly attenuated and whether the changes were related to physiologic parameters that characterize sickle cell disease. MATERIALS AND METHODS Both the functional and default mode responses were obtained from age- and background-matched controls and the sickle cell population by using a visually presented word stem paradigm on a 3T scanner. RESULTS We observed an attenuated response to both activation and deactivation in the sickle cell disease group. There were no significant differences in the activation response between the 2 groups for the contrast control > sickle cell disease; however, significant differences were observed in the medial parietal cortex, the auditory cortex, and the angular gyrus for the default mode. For the sickle cell group, a significant correlation between the activation z scores and the physiologic parameters was observed; for the deactivation, the results were not significant but the trend was similar. CONCLUSIONS The results indicate that the physiologic parameters modulate the activation in the expected fashion, but that the effect was weaker for deactivation. Given that significant differences between the 2 groups were only seen for deactivation, additional factors must modulate the deactivation in sickle cell disease.
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Affiliation(s)
- B Sun
- From the Departments of Radiology (B.S., S.P., R.A.J.)
| | | | - T G Burns
- Neuropsychology (T.G.B., D.M.), Children's Healthcare of Atlanta, Atlanta, Georgia
| | - D Murdaugh
- Neuropsychology (T.G.B., D.M.), Children's Healthcare of Atlanta, Atlanta, Georgia
| | - S Palasis
- From the Departments of Radiology (B.S., S.P., R.A.J.)
| | - R A Jones
- From the Departments of Radiology (B.S., S.P., R.A.J.)
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Wang H, Gao X, Liu C, Yan C, Lin X, Dong Y, Sun B, Sun B. Surfactant reduced the mortality of neonates with birth weight ⩾1500 g and hypoxemic respiratory failure: a survey from an emerging NICU network. J Perinatol 2017; 37:645-651. [PMID: 28151493 DOI: 10.1038/jp.2016.272] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Revised: 11/10/2016] [Accepted: 11/11/2016] [Indexed: 11/09/2022]
Abstract
OBJECTIVE We evaluated the efficacy of surfactant therapy and assisted ventilation on morbidity and mortality of neonates with birth weight (BW) ⩾1500 g and hypoxemic respiratory failure (HRF). STUDY DESIGN We retrospectively analyzed 5650 patients with BW ⩾1500 g for incidence, management and outcome of HRF, defined as acute hypoxemia requiring mechanical ventilation and/or nasal continuous positive airway pressure ⩾24 h. The patients were allocated into groups of moderate preterm (1735, 30.7%), late preterm (1431, 25.4%), early term (ETM, 986, 17.5%), full term (1390, 24.6%) and post term (79, 1.4%), with gestational age ⩽33, 34 to 36, 37 to 38, 39 to 41 and ⩾42 weeks, respectively. RESULTS In the five groups, 66.9, 42, 21.6, 12.8 and 5.1% had respiratory distress syndrome (RDS). For pneumonia/sepsis and meconium aspiration syndrome (MAS), the proportion was 13.8%, 25.4%, 38.0%, 52.5% and 76.0%, respectively. Surfactant was given to 21.9% (n=1238) of HRF and 51.2% (n=1108) of RDS. Survival rates of RDS were 82.2%, 87.8%, 84.5%, 77.1% and 75.0%, respectively (numbers needed to treat was 8 to 11 for surfactant benefit). Overall mortality rate of HRF was 21%, or 17.9%, 14.7%, 25.6%, 28.9% and 39.2%, respectively. Mortalities of MAS and pneumonia/sepsis were 29.4 and 27.6%. Relative risk of death was associated with initial disease severity, female gender, mechanical ventilation and congenital anomalies by multivariate logistic regression analysis. CONCLUSION Surfactant was effective for infants with RDS and BW ⩾1500 g, and different incidences and outcome of HRF among GA groups reflected standard of perinatal and respiratory care in emerging neonatal intensive care unit network.
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Affiliation(s)
- H Wang
- Departments of Pediatrics and Neonatology, Children's Hospital of Fudan University, and The Laboratory of Neonatal Diseases of National Health and Family Planning Commission, Shanghai, China
| | - X Gao
- Hunan Provincial Children's Hospital, Changsha, China
| | - C Liu
- Hebei Provincial Children's Hospital, Shijiazhuang, China
| | - C Yan
- First Hospital of Jilin University, Changchun, China
| | - X Lin
- Xiamen Maternity Hospital, Xiamen, China
| | - Y Dong
- Departments of Pediatrics and Neonatology, Children's Hospital of Fudan University, and The Laboratory of Neonatal Diseases of National Health and Family Planning Commission, Shanghai, China
| | - B Sun
- Departments of Pediatrics and Neonatology, Children's Hospital of Fudan University, and The Laboratory of Neonatal Diseases of National Health and Family Planning Commission, Shanghai, China
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Cong H, Han D, Sun B, Zhou D, Wang C, Liu P, Feng L. Facile Approach to Preparing a Vanadium Oxide Hydrate Layer as a Hole-Transport Layer for High-Performance Polymer Solar Cells. ACS Appl Mater Interfaces 2017; 9:18087-18094. [PMID: 28470056 DOI: 10.1021/acsami.7b02164] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
We demonstrate a facile and green approach to preparing a vanadium oxide hydrate (VOx·nH2O) layer to serve as the hole-transport layer (HTL) in high-performance polymer solar cells (PSCs). The VOx·nH2O layer was in situ prepared by a combined H2O2 and ultraviolet-ozone (UVO) processing on a VOx layer. The as-prepared VOx·nH2O layer featured a work function of 5.0 ± 0.1 eV, high transmittance, and better interface properties compared to those of the generally prepared VOx (UVO or thermal annealing) layers. PSCs based on poly[(ethylhexyl-thiophenyl)-benzodithiophene-(ethylhexyl)-thienothiophene]/[6,6]-phenyl-C71-butyric acid methyl ester using the VOx·nH2O layer as the HTL yielded high power conversion efficiencies (PCEs) up to 8.11%, outperforming the devices with VOx layers (PCE of 6.79% for the UVO-processed VOx layer and 6.10% for the thermally annealed VOx layer) and conventional polyethylenedioxythiophene-polystyrenesulfonate (PEDOT:PSS) layers (PCE of 7.67%). The improved PCE was attributed to the enhanced JSC and/or fill factor, which mainly correlate to the improved interfacial contact between the photoactive layer and the indium tin oxide/HTL or cathode when using the VOx·nH2O layer as the HTL. A similar improvement in the PCE was also observed for the PSCs based on poly(3-hexylthiophene)/[6,6]-phenyl-C61-butyric acid methyl ester. In addition, PSCs with a VOx·nH2O layer as the HTL showed a higher stability than that of those with a PEDOT:PSS layer. Hence, it would be possible to use this simply and in situ prepared VOx·nH2O layer as an inexpensive HTL for high-performance PSCs.
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Affiliation(s)
- Hailin Cong
- Laboratory for New Fiber Materials and Modern Textile, Growing Base for State Key Laboratory, College of Chemical Engineering, Qingdao University , Qingdao 266071, China
- Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province, Soochow Institute for Energy and Materials Innovations, College of Physics, Optoelectronics and Energy, Soochow University , Suzhou 215006, China
| | - Dongwei Han
- Laboratory for New Fiber Materials and Modern Textile, Growing Base for State Key Laboratory, College of Chemical Engineering, Qingdao University , Qingdao 266071, China
- Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province, Soochow Institute for Energy and Materials Innovations, College of Physics, Optoelectronics and Energy, Soochow University , Suzhou 215006, China
| | - Bingbing Sun
- Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province, Soochow Institute for Energy and Materials Innovations, College of Physics, Optoelectronics and Energy, Soochow University , Suzhou 215006, China
| | - Dongying Zhou
- Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province, Soochow Institute for Energy and Materials Innovations, College of Physics, Optoelectronics and Energy, Soochow University , Suzhou 215006, China
| | - Chen Wang
- Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province, Soochow Institute for Energy and Materials Innovations, College of Physics, Optoelectronics and Energy, Soochow University , Suzhou 215006, China
| | - Ping Liu
- Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province, Soochow Institute for Energy and Materials Innovations, College of Physics, Optoelectronics and Energy, Soochow University , Suzhou 215006, China
| | - Lai Feng
- Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province, Soochow Institute for Energy and Materials Innovations, College of Physics, Optoelectronics and Energy, Soochow University , Suzhou 215006, China
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Jiang Y, Qian F, Yang J, Liu Y, Dong F, Xu C, Sun B, Chen B, Xu X, Li Y, Wang R, Yang S. CRISPR-Cpf1 assisted genome editing of Corynebacterium glutamicum. Nat Commun 2017; 8:15179. [PMID: 28469274 PMCID: PMC5418603 DOI: 10.1038/ncomms15179] [Citation(s) in RCA: 216] [Impact Index Per Article: 30.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2016] [Accepted: 03/07/2017] [Indexed: 12/23/2022] Open
Abstract
Corynebacterium glutamicum is an important industrial metabolite producer that is difficult to genetically engineer. Although the Streptococcus pyogenes (Sp) CRISPR-Cas9 system has been adapted for genome editing of multiple bacteria, it cannot be introduced into C. glutamicum. Here we report a Francisella novicida (Fn) CRISPR-Cpf1-based genome-editing method for C. glutamicum. CRISPR-Cpf1, combined with single-stranded DNA (ssDNA) recombineering, precisely introduces small changes into the bacterial genome at efficiencies of 86-100%. Large gene deletions and insertions are also obtained using an all-in-one plasmid consisting of FnCpf1, CRISPR RNA, and homologous arms. The two CRISPR-Cpf1-assisted systems enable N iterative rounds of genome editing in 3N+4 or 3N+2 days. A proof-of-concept, codon saturation mutagenesis at G149 of γ-glutamyl kinase relieves L-proline inhibition using Cpf1-assisted ssDNA recombineering. Thus, CRISPR-Cpf1-based genome editing provides a highly efficient tool for genetic engineering of Corynebacterium and other bacteria that cannot utilize the Sp CRISPR-Cas9 system.
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Affiliation(s)
- Yu Jiang
- Key Laboratory of Synthetic Biology, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China.,Shanghai Research and Development Center of Industrial Biotechnology, Shanghai 201201, China
| | - Fenghui Qian
- Key Laboratory of Synthetic Biology, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China.,Shanghai Research and Development Center of Industrial Biotechnology, Shanghai 201201, China
| | - Junjie Yang
- Key Laboratory of Synthetic Biology, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China.,Shanghai Research and Development Center of Industrial Biotechnology, Shanghai 201201, China
| | - Yingmiao Liu
- Key Laboratory of Synthetic Biology, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China.,Shanghai Research and Development Center of Industrial Biotechnology, Shanghai 201201, China.,Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing 200237, China.,College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Feng Dong
- Key Laboratory of Synthetic Biology, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China.,Shanghai Research and Development Center of Industrial Biotechnology, Shanghai 201201, China
| | - Chongmao Xu
- Key Laboratory of Synthetic Biology, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China.,Shanghai Research and Development Center of Industrial Biotechnology, Shanghai 201201, China
| | - Bingbing Sun
- Key Laboratory of Synthetic Biology, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China.,Shanghai Research and Development Center of Industrial Biotechnology, Shanghai 201201, China.,School of Pharmacy, Shanghai Jiaotong University, Shanghai 200240, China
| | - Biao Chen
- Key Laboratory of Synthetic Biology, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China.,Shanghai Research and Development Center of Industrial Biotechnology, Shanghai 201201, China
| | - Xiaoshu Xu
- Key Laboratory of Synthetic Biology, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Yan Li
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
| | - Renxiao Wang
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
| | - Sheng Yang
- Key Laboratory of Synthetic Biology, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China.,Shanghai Research and Development Center of Industrial Biotechnology, Shanghai 201201, China.,Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing 200237, China
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240
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Tan HT, Zong Y, Zhao ZQ, Wu LF, Liu J, Sun B, Jiang HC. [Prognostic factors of postoperative delayed gastric emptying after pancreaticoduodenectomy: a predictive model]. Zhonghua Wai Ke Za Zhi 2017; 55:368-372. [PMID: 28464578 DOI: 10.3760/cma.j.issn.0529-5815.2017.05.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To study the prognostic factors of delayed gastric emptying(DGE) after pancreaticoduodenectomy(PD) and construct a prognostic predictive model for clinical application. Methods: Clinic data of 401 consecutive patients who underwent PD between January 2012 and July 2016 in the First Affiliated Hospital of Harbin Medical University were retrospectively collected and analyzed. The patients were randomly selected to modeling group(n=299) and validation group(n=102) at a ratio of 3∶1. The data of modeling group were subjected to univariate and multivariate analysis for prognostic factors and to construct a prognostic predictive model of DGE after PD. The data of validation group were applied to test the prognostic predictive model. Results: DGE after PD occurred in 35 of 299 patients(11.7%) in the modeling group. The multivariate analysis of the modeling group showed that upper abdominal operation history(χ(2)=6.533, P=0.011), diabetes mellitus(χ(2)=17.872, P=0.000), preoperative hemoglobin <90 g/L(χ(2)=14.608, P=0.000) and pylorus-preserving pancreaticoduodenectomy(PPPD)(χ(2)=8.811, P=0.003) were associated with DGE after PD independently. A prognostic predictive model of DGE after PD was constructed based on these factors and successfully tested. The area under the receiver operating characteristic(ROC) curve was 0.761(95%CI: 0.666-0.856) of the modeling group and 0.750(95% CI: 0.577-0.923) of the validation group. Conclusions: Upper abdominal operation history, diabetes mellitus, preoperative hemoglobin<90 g/L and PPPD are associated with DGE after PD independently. The preoperative assessment of a patient's prognostic for DGE after PD is feasible. The model is a valid tool to take precautions against DGE after PD.
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Affiliation(s)
- H T Tan
- Department of Pancreatic and Biliary Surgery, the First Affiliated Hospital, Harbin Medical University, Harbin 150001, China
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Mirshafiee V, Jiang W, Sun B, Wang X, Xia T. Facilitating Translational Nanomedicine via Predictive Safety Assessment. Mol Ther 2017; 25:1522-1530. [PMID: 28412168 DOI: 10.1016/j.ymthe.2017.03.011] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [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: 12/15/2016] [Revised: 03/04/2017] [Accepted: 03/05/2017] [Indexed: 11/29/2022] Open
Abstract
Extensive research on engineered nanomaterials (ENMs) has led to the development of numerous nano-based formulations for theranostic purposes. Although some nano-based drug delivery systems already exist on the market, growing numbers of newly designed ENMs exhibit improved physicochemical properties and are being assessed in preclinical stages. While these ENMs are designed to improve the efficacy of current nano-based therapeutic or imaging systems, it is necessary to thoroughly determine their safety profiles for successful clinical applications. As such, our aim in this mini-review is to discuss the current knowledge on predictive safety and structure-activity relationship (SAR) analysis of major ENMs at the developing stage, as well as the necessity of additional long-term toxicological analysis that would help to facilitate their transition into clinical practices. We focus on how the interaction of these nanomaterials with cells would trigger signaling pathways as molecular initiating events that lead to adverse outcomes. These mechanistic understandings would help to design safer ENMs with improved therapeutic efficacy in clinical settings.
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Affiliation(s)
- Vahid Mirshafiee
- Center for Environmental Implications of Nanotechnology (CEIN), California NanoSystems Institute (CNSI), University of California Los Angeles, 570 Westwood Plaza, Los Angeles, CA 90095, USA
| | - Wen Jiang
- Center for Environmental Implications of Nanotechnology (CEIN), California NanoSystems Institute (CNSI), University of California Los Angeles, 570 Westwood Plaza, Los Angeles, CA 90095, USA
| | - Bingbing Sun
- Division of NanoMedicine, Department of Medicine, University of California Los Angeles, 10833 Le Conte Ave., Los Angeles, CA 90095, USA; State Key Laboratory of Fine Chemicals, Department of Chemical Engineering, Dalian University of Technology, 2 Linggong Rd., Dalian 116024, China
| | - Xiang Wang
- Center for Environmental Implications of Nanotechnology (CEIN), California NanoSystems Institute (CNSI), University of California Los Angeles, 570 Westwood Plaza, Los Angeles, CA 90095, USA
| | - Tian Xia
- Center for Environmental Implications of Nanotechnology (CEIN), California NanoSystems Institute (CNSI), University of California Los Angeles, 570 Westwood Plaza, Los Angeles, CA 90095, USA; Division of NanoMedicine, Department of Medicine, University of California Los Angeles, 10833 Le Conte Ave., Los Angeles, CA 90095, USA; State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
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Itoh A, Pisani M, Baltalzar M, Balsara K, Masood M, Tepper S, Han J, Ranney D, Daneshmand M, Sun B, Kai M, Camacho M, Takayama H. Clinical Benefits and Complications in Patients with Percutaneous VAD versus Surgical LV Vent with ECLS: Multicenter REgiStry for Cardiogenic Shock - Utilization and Efficacy of Device Therapy (RESCUE). J Heart Lung Transplant 2017. [DOI: 10.1016/j.healun.2017.01.1258] [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] Open
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243
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Takayama H, Han J, Baltazar-Garcia M, Lucas M, Kai M, Camacho M, Sun B, Ranney D, Daneshmand M, Itoh A. Contemporary ECMO Therapy for Postcardiotomy Shock: From REgiStry for Cardiogenic Shock: Utility and Efficacy of Device Therapy (RESCUE). J Heart Lung Transplant 2017. [DOI: 10.1016/j.healun.2017.01.363] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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244
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Wang X, Sun B, Liu S, Xia T. Structure Activity Relationships of Engineered Nanomaterials in inducing NLRP3 Inflammasome Activation and Chronic Lung Fibrosis. NanoImpact 2017; 6:99-108. [PMID: 28480337 PMCID: PMC5415341 DOI: 10.1016/j.impact.2016.08.002] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
It has been demonstrated that certain engineered nanomaterials (ENMs) could induce chronic lung inflammation and fibrosis, however, the key structure activity relationships (SARs) that the link the physicochemical properties and the fibrogenic effects have not been thoroughly reviewed. Recently, significant progress has been made in our understanding of the SAR, and it has been demonstrated that ENMs including rare earth oxides (REOs), graphene and graphene oxides (GO), fumed silica, as well as high aspect ratio materials (such as CNTs and CeO2 nanowires etc.) could trigger the NLRP3 inflammasome activation and IL-1β production in macrophages and subsequent series of profibrogenic cytokines, i.e. TGF-β1 and PDGF-AA in vitro and in vivo, resulting in synergistically cell-cell communication among macrophages, epithelial cells, and fibroblasts in a process named epithelial-mesenchymal transition (EMT) and collagen deposition in the lung as the adverse outcomes. Interestingly, different ENMs engage a range of distinct pathways leading to the NLRP3 inflammasome activation and IL-1β production in macrophages, which include frustrated phagocytosis, physical piercing, plasma membrane perturbation or damage to lysosomes due to high aspect ratio, particle structure, surface reactivity, transformation, etc. Furthermore, ENM's properties determine the biopersistence in vivo, which also play a major role in chronic lung fibrosis. Based on these progresses, we reviewed recent findings in the literature on the major SARs leading to chronic lung effects.
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Affiliation(s)
- Xiang Wang
- Division of NanoMedicine, Department of Medicine; University of California, Los Angeles, California, 90095, United States
- Center for Environmental Implications of Nanotechnology (CEIN), California NanoSystems Institute (CNSI), University of California, Los Angeles, California, 90095, United States
| | - Bingbing Sun
- Division of NanoMedicine, Department of Medicine; University of California, Los Angeles, California, 90095, United States
- Center for Environmental Implications of Nanotechnology (CEIN), California NanoSystems Institute (CNSI), University of California, Los Angeles, California, 90095, United States
| | - Sijin Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Tian Xia
- Division of NanoMedicine, Department of Medicine; University of California, Los Angeles, California, 90095, United States
- Center for Environmental Implications of Nanotechnology (CEIN), California NanoSystems Institute (CNSI), University of California, Los Angeles, California, 90095, United States
- Corresponding authors:
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245
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Sun B, Zhao Y, Yu J, Ling J, Shang H, Liu Z. The Combined Efficacy of Superchilling and High CO2 Modified Atmosphere Packaging on Shelf Life and Quality of Swimming Crab (Portunus trituberculatus). Journal of Aquatic Food Product Technology 2017. [DOI: 10.1080/10498850.2016.1252822] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- B. Sun
- Faculty of College of Food Science and Engineering, Ocean University of China, Qingdao, China
| | - Y. Zhao
- Faculty of College of Food Science and Engineering, Ocean University of China, Qingdao, China
| | - J. Yu
- Faculty of Research institute of Agricultural product, Ningbo’s Academy of Agricultural Sciences, Ningbo, Zhejiang Province, China
| | - J. Ling
- Faculty of Research institute of Agricultural product, Ningbo’s Academy of Agricultural Sciences, Ningbo, Zhejiang Province, China
| | - H. Shang
- Faculty of Research institute of Agricultural product, Ningbo’s Academy of Agricultural Sciences, Ningbo, Zhejiang Province, China
| | - Z. Liu
- Faculty of College of Food Science and Engineering, Ocean University of China, Qingdao, China
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Abstract
Emerging nanotechnologies show unprecedented advantages in accelerating cancer theranostics. Among them, two-dimensional nanomaterials (2DNMs) represent a novel type of material with versatile physicochemical properties that have enabled a new horizon for applications in both cancer diagnosis and therapy. Studies have demonstrated that 2DNMs may be used in diverse aspects, including i) cancer detection due to their high propensity towards tumor markers; ii) molecular imaging for guided tumor therapies, and iii) drug and gene loading, photothermal and photodynamic cancer therapies. However, their biomedical applications raise concerns due to the limited understanding of their in vivo metabolism, transformation and possible toxicities. In this comprehensive review, the state-of-the-art development of 2DNMs and their implications for cancer nanotheranostics are presented. The modification strategies to enhance the biocompatibility of 2DNMs are also reviewed.
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Affiliation(s)
- Yongjiu Chen
- State Key Laboratory of Environmental, Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Yakun Wu
- State Key Laboratory of Environmental, Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Bingbing Sun
- School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, China
| | - Sijin Liu
- State Key Laboratory of Environmental, Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Huiyu Liu
- Beijing Key Laboratory of Bioprocess, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing, 100029, China
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Jiang W, Wang X, Osborne OJ, Du Y, Chang CH, Liao YP, Sun B, Jiang J, Ji Z, Li R, liu X, Lu J, Lin S, Meng H, Xia T, Nel AE. Pro-Inflammatory and Pro-Fibrogenic Effects of Ionic and Particulate Arsenide and Indium-Containing Semiconductor Materials in the Murine Lung. ACS Nano 2017; 11:1869-1883. [PMID: 28177603 PMCID: PMC5543990 DOI: 10.1021/acsnano.6b07895] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
We have recently shown that the toxicological potential of GaAs and InAs particulates in cells is size- and dissolution-dependent, tending to be more pronounced for nano- vs micron-sized particles. Whether the size-dependent dissolution and shedding of ionic III-V materials also apply to pulmonary exposure is unclear. While it has been demonstrated that micron-sized III-V particles, such as GaAs and InAs, are capable of inducing hazardous pulmonary effects in an occupational setting as well as in animal studies, the effect of submicron particles (e.g., the removal of asperities during processing of semiconductor wafers) is unclear. We used cytokine profiling to compare the pro-inflammatory effects of micron- and nanoscale GaAs and InAs particulates in cells as well as the murine lung 40 h and 21 days after oropharyngeal aspiration. Use of cytokine array technology in macrophage and epithelial cell cultures demonstrated a proportionally higher increase in the levels of matrix metalloproteinase inducer (EMMPRIN), macrophage migration inhibitory factor (MIF), and interleukin 1β (IL-1β) by nanosized (n) GaAs and n-InAs as well as As(III). n-GaAs and n-InAs also triggered higher neutrophil counts in the bronchoalveolar lavage fluid (BALF) of mice than micronscale particles 40 h post-aspiration, along with increased production of EMMPRIN and MIF. In contrast, in animals sacrificed 21 days after exposure, only n-InAs induced fibrotic lung changes as determined by increased lung collagen as well as increased levels of TGF-β1 and PDGF-AA in the BALF. A similar trend was seen for EMMPRIN and matrix metallopeptidase (MMP-9) levels in the BALF. Nano- and micron-GaAs had negligible subacute effects. Importantly, the difference between the 40 h and 21 days data appears to be biopersistence of n-InAs, as demonstrated by ICP-OES analysis of lung tissue. Interestingly, an ionic form of In, InCl3, also showed pro-fibrogenic effects due to the formation of insoluble In(OH)3 nanostructures. All considered, these data indicate that while nanoscale particles exhibit increased pro-inflammatory effects in the lung, most effects are transient, except for n-InAs and insoluble InCl3 species that are biopersistent and trigger pro-fibrotic effects. These results are of potential importance for the understanding the occupational health effects of III-V particulates.
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Affiliation(s)
- Wen Jiang
- Center for Environmental Implications of Nanotechnology, California NanoSystems Institute, University of California Los Angeles, 570 Westwood Plaza, Los Angeles, CA 90095, United States
| | - Xiang Wang
- Center for Environmental Implications of Nanotechnology, California NanoSystems Institute, University of California Los Angeles, 570 Westwood Plaza, Los Angeles, CA 90095, United States
| | - Olivia J. Osborne
- Center for Environmental Implications of Nanotechnology, California NanoSystems Institute, University of California Los Angeles, 570 Westwood Plaza, Los Angeles, CA 90095, United States
| | - Yingjie Du
- Center for Environmental Implications of Nanotechnology, California NanoSystems Institute, University of California Los Angeles, 570 Westwood Plaza, Los Angeles, CA 90095, United States
| | - Chong Hyun Chang
- Center for Environmental Implications of Nanotechnology, California NanoSystems Institute, University of California Los Angeles, 570 Westwood Plaza, Los Angeles, CA 90095, United States
| | - Yu-Pei Liao
- Division of NanoMedicine, Department of Medicine, University of California Los Angeles, 10833 Le Conte Ave, Los Angeles, CA 90095, United States
| | - Bingbing Sun
- Center for Environmental Implications of Nanotechnology, California NanoSystems Institute, University of California Los Angeles, 570 Westwood Plaza, Los Angeles, CA 90095, United States
| | - Jinhong Jiang
- Center for Environmental Implications of Nanotechnology, California NanoSystems Institute, University of California Los Angeles, 570 Westwood Plaza, Los Angeles, CA 90095, United States
| | - Zhaoxia Ji
- Center for Environmental Implications of Nanotechnology, California NanoSystems Institute, University of California Los Angeles, 570 Westwood Plaza, Los Angeles, CA 90095, United States
| | - Ruibin Li
- Center for Environmental Implications of Nanotechnology, California NanoSystems Institute, University of California Los Angeles, 570 Westwood Plaza, Los Angeles, CA 90095, United States
- School of Radiation Medicine and Protection & School for Radiological and Interdisciplinary Sciences (RAD-X), Medical College of Soochow University, Suzhou, Jiangsu 215123, China
| | - Xiangsheng liu
- Division of NanoMedicine, Department of Medicine, University of California Los Angeles, 10833 Le Conte Ave, Los Angeles, CA 90095, United States
| | - Jianqin Lu
- Division of NanoMedicine, Department of Medicine, University of California Los Angeles, 10833 Le Conte Ave, Los Angeles, CA 90095, United States
| | - Sijie Lin
- Center for Environmental Implications of Nanotechnology, California NanoSystems Institute, University of California Los Angeles, 570 Westwood Plaza, Los Angeles, CA 90095, United States
- College of Environmental Science and Engineering State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai, China, 200092
| | - Huan Meng
- Division of NanoMedicine, Department of Medicine, University of California Los Angeles, 10833 Le Conte Ave, Los Angeles, CA 90095, United States
| | - Tian Xia
- Center for Environmental Implications of Nanotechnology, California NanoSystems Institute, University of California Los Angeles, 570 Westwood Plaza, Los Angeles, CA 90095, United States
- Division of NanoMedicine, Department of Medicine, University of California Los Angeles, 10833 Le Conte Ave, Los Angeles, CA 90095, United States
| | - André E. Nel
- Center for Environmental Implications of Nanotechnology, California NanoSystems Institute, University of California Los Angeles, 570 Westwood Plaza, Los Angeles, CA 90095, United States
- Division of NanoMedicine, Department of Medicine, University of California Los Angeles, 10833 Le Conte Ave, Los Angeles, CA 90095, United States
- Address correspondence to: André E. Nel, M.D./Ph.D., Department of Medicine, Division of NanoMedicine, UCLA School of Medicine, 52-175 CHS, 10833 Le Conte Ave, Los Angeles, CA 90095-1680, USA, Tel: (310) 825-6620, Fax: (310) 206-8107,
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Liu LZ, Wu JY, Wu ZY, Chen ZH, Ling L, Sun B, Li YF, Huang XS. [Clinical and electrophysiological studies of oxaliplatin-induced peripheral neuropathy]. Zhonghua Yi Xue Za Zhi 2017; 96:1021-5. [PMID: 27055794 DOI: 10.3760/cma.j.issn.0376-2491.2016.13.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To identify the sensitive scales and the early change of nerve conduction for chronic oxaliplatin-induced peripheral neuropathy (OXLIPN), and to investigate correlation between the symptoms of acute OXLIPN and chronic OXLIPN. METHODS Between December 2014 and August 2015, 16 colorectal cancer patients confirmed by pathology, from department of Oncology, Chinese PLA General Hospital, scheduled to receive XELOX, completed the acute neurotoxic symptoms questionnaire at the end of 1 cycles and the scales of TNSc and NCI-CTC at the baseline and the end of 4 cycles. Nerve conduction studies (bilateral peroneal nerves and sural nerves) were performed in 11 patients at the baseline and the end of 4 cycles. RESULTS After chemotherapy, TNSc increased 1-9 points for all cases, while NCI-CTC increased 1 point for only 9 cases, the remaining 7 cases had the same NCI-CTC score before and after chemotherapy, where TNSc increased 1-6 points. Left sural nerve a-SNAP (amplitude of sensory nerve action potential) was (15.3±5.8)μV before chemotherapy and(12.3±5.0)μV after chemotherapy. Right sural nerve a-SNAP was (17.4±8.6)μV before chemotherapy and (13.3±6.7)μV after chemotherapy. After chemotherapy, these datum were significantly reduced for left peroneal nerve distal and proximal a-CMAP (amplitude of compound muscle action potential), bilateral sural nerve a-SNAP and left sural nerve SCV (sensory conduction velocity) (P<0.05). After chemotherapy, TNSc was correlated significantly with the acute neurotoxic symptoms questionnaire (Spearman r=0.698, P=0.003). CONCLUSIONS TNSc is more sensitive to the severity and changes in chronic OXLIPN than NCI-CTC. Sural nerve a-SNAP has a higher sensitivity for the early changes of nerve conduction studies in chronic OXLIPN. Patients who have more symptoms of acute OXLIPN are those who eventually develop more severe chronic OXLIPN.
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Affiliation(s)
- L Z Liu
- Department of Neurology, Chinese PLA General Hospital, Beijing 100853, China
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Li Y, Zhao R, Chao S, Sun B, Zhang N, Qiu J, Wang C, Li X. A flexible magnesium silicate coated electrospun fiber adsorbent for high-efficiency removal of a toxic cationic herbicide. NEW J CHEM 2017. [DOI: 10.1039/c7nj03168h] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [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
A novel magnesium silicate/PAN composite electrospun fiber adsorbent was prepared and systematically investigated for the removal of the cationic herbicide diquat.
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Affiliation(s)
- Y. Li
- Alan G. MacDiarmid Institute
- Jilin University
- Changchun 130012
- P. R. China
| | - R. Zhao
- Alan G. MacDiarmid Institute
- Jilin University
- Changchun 130012
- P. R. China
| | - S. Chao
- Alan G. MacDiarmid Institute
- Jilin University
- Changchun 130012
- P. R. China
| | - B. Sun
- Alan G. MacDiarmid Institute
- Jilin University
- Changchun 130012
- P. R. China
| | - N. Zhang
- Alan G. MacDiarmid Institute
- Jilin University
- Changchun 130012
- P. R. China
| | - J. Qiu
- Alan G. MacDiarmid Institute
- Jilin University
- Changchun 130012
- P. R. China
| | - C. Wang
- Alan G. MacDiarmid Institute
- Jilin University
- Changchun 130012
- P. R. China
| | - X. Li
- Alan G. MacDiarmid Institute
- Jilin University
- Changchun 130012
- P. R. China
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250
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Abstract
Plastic components of e-waste contain high levels of brominated flame retardants (BFRs), whose releases cause environmental and human health concerns. This study characterized the release kinetics of polybrominated diphenyl ethers (PBDEs) from millimeter-sized granules processed from the plastic exteriors of two scrap computer displays at environmentally relevant temperatures. The release rate of a substitute of PBDEs, 1,2-bis(2,4,6-tribromophenoxy)ethane (BTBPE), from the waste plastics, was reported for the first time. Deca-BDE was the most abundant PBDE congeners in both materials (87-89%), while BTBPE was also present at relatively high contents. The release kinetics of BFRs could be modeled as one-dimensional diffusion, while the temperature dependence of diffusion coefficients was well described by the Arrhenius equation. The diffusion coefficients of BFRs (at 30 °C) in the plastic matrices were estimated to be in the range of 10-27.16 to 10-19.96 m2·s-1, with apparent activation energies between 88.4 and 154.2 kJ·mol-1. The half-lives of BFR releases (i.e., 50% depletion) from the plastic granules ranged from thousands to tens of billions of years at ambient temperatures. These findings suggest that BFRs are released very slowly from the matrices of waste plastics through molecular diffusion, while their emissions can be significantly enhanced with wear-and-tear and pulverization.
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Affiliation(s)
- Bingbing Sun
- State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences , Guangzhou 510640, China
- University of Chinese Academy of Sciences , Beijing 100049, China
| | - Yuanan Hu
- MOE Laboratory of Groundwater Circulation and Evolution, School of Water Resources and Environment, China University of Geosciences (Beijing) , Beijing 100083, China
| | - Hefa Cheng
- MOE Key Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University , Beijing 100871, China
| | - Shu Tao
- MOE Key Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University , Beijing 100871, China
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