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Zhu M, Hong T, Peng J, Zou T, Mao ZQ, Ke X. Field-induced magnetic phase transitions and memory effect in bilayer ruthenate Ca 3Ru 2O 7 with Fe substitution. J Phys Condens Matter 2018; 30:075802. [PMID: 29359709 DOI: 10.1088/1361-648x/aaa626] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Bilayer ruthenate Ca3(Ru1-x Fe x )2O7 (x = 0.05) exhibits an incommensurate magnetic soliton lattice driven by the Dzyaloshinskii-Moriya interaction. Here we report complex field-induced magnetic phase transitions and memory effect in this system via single-crystal neutron diffraction and magnetotransport measurements. We observe first-order incommensurate-to-commensurate magnetic transitions upon applying the magnetic field both along and perpendicular to the propagation axis of the incommensurate spin structure. Furthermore, we find that the metastable states formed upon decreasing the magnetic field depend on the temperature and the applied field orientation. We suggest that the observed field-induced metastability may be ascribable to the quenched kinetics at low temperature.
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Affiliation(s)
- M Zhu
- Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824, United States of America
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202
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Xu L, Li Y, Dai Y, Peng J. Natural products for the treatment of type 2 diabetes mellitus: Pharmacology and mechanisms. Pharmacol Res 2018; 130:451-465. [PMID: 29395440 DOI: 10.1016/j.phrs.2018.01.015] [Citation(s) in RCA: 232] [Impact Index Per Article: 38.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Revised: 01/20/2018] [Accepted: 01/22/2018] [Indexed: 02/06/2023]
Abstract
Epidemiological studies have implied that diabetes mellitus (DM) will become an epidemic accompany with metabolic and endocrine disorders worldwide. Most of DM patients are affected by type 2 diabetes mellitus (T2DM) with insulin resistance and insulin secretion defect. Generally, the strategies to treat T2DM are diet control, moderate exercise, hypoglycemic and lipid-lowing agents. Despite the therapeutic benefits for the treatment of T2DM, most of the drugs can produce some undesirable side effects. Considering the pathogenesis of T2DM, natural products (NPs) have become the important resources of bioactive agents for anti-T2DM drug discovery. Recently, more and more natural components have been elucidated to possess anti-T2DM properties, and many efforts have been carried out to elucidate the possible mechanisms. The aim of this paper was to overview the activities and underlying mechanisms of NPs against T2DM. Developments of anti-T2DM agents will be greatly promoted with the increasing comprehensions of NPs for their multiple regulating effects on various targets and signal pathways.
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Affiliation(s)
- Lina Xu
- College of Pharmacy, Dalian Medical University, Western 9 Lvshunnan Road, Dalian 116044, China
| | - Yue Li
- College of Pharmacy, Dalian Medical University, Western 9 Lvshunnan Road, Dalian 116044, China
| | - Yan Dai
- College of Pharmacy, Dalian Medical University, Western 9 Lvshunnan Road, Dalian 116044, China
| | - Jinyong Peng
- College of Pharmacy, Dalian Medical University, Western 9 Lvshunnan Road, Dalian 116044, China.
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203
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Zhang X, Ji R, Sun H, Peng J, Ma X, Wang C, Fu Y, Bao L, Jin Y. Scutellarin ameliorates nonalcoholic fatty liver disease through the PPARγ/PGC-1α-Nrf2 pathway. Free Radic Res 2018; 52:198-211. [PMID: 29400110 DOI: 10.1080/10715762.2017.1422602] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Nonalcoholic fatty liver disease (NAFLD) is characterised by excessive accumulation of hepatic lipids and oxidative injury of hepatocytes. Scutellarin is a flavonoid glycoside having antioxidative stress activity. Our current study aims to investigate the molecular mechanism of scutellarin ameliorating NAFLD. Scutellarin treatment was applied to male C57BL/6 mice maintained on a high-fat diet (HFD) and HepG2 cells challenged with oleic acid. The antioxidation biochemical indicators and lipid levels in the liver and cells were detected by kits. Liver pathology was observed by light microscope, Oil Red O staining, and transmission electron microscope (TEM). In addition, quantitative real-time polymerase chain reactions (qRT-PCR) and western blot assays were employed to detect the mRNA and protein levels of various antioxidative-related genes in the presence or absence of peroxisome proliferator-activated receptor gamma (PPARγ); inhibitor GW9662. Our results showed that scutellarin could significantly reduce blood lipid levels and enhance antioxidative capacities in both the models. In addition, scutellarin treatment conspicuously activated PPARγ, peroxisome proliferator-activated receptor gamma coactivator-1 alpha (PGC-1α), nuclear factor erythroid-2-related factor (Nrf2), haem oxygenase-1 (HO-1), glutathione S-transferase (GST), and NAD(P)H quinone dehydrogenase one (NQO1), while it significantly inhibited nuclear factor kappa B (NF-κB), Kelch-like ECH-associated protein 1 (Keap1) at both the mRNA and protein levels. However, after interfered by GW9662, scutellarin effect was significantly decreased. The experimental data demonstrated that scutellarin showed strong hypolipidaemic, antioxidative, and liver protective activity which could be attributed to its regulating activity in the PPARγ/PGC-1α-Nrf2 signaling pathway.
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Affiliation(s)
- Xiaoxue Zhang
- a College of Pharmacy , Dalian Medical University , Dalian , China
| | - Renpeng Ji
- a College of Pharmacy , Dalian Medical University , Dalian , China
| | - Huijun Sun
- a College of Pharmacy , Dalian Medical University , Dalian , China
| | - Jinyong Peng
- a College of Pharmacy , Dalian Medical University , Dalian , China
| | - Xiaodong Ma
- a College of Pharmacy , Dalian Medical University , Dalian , China
| | - ChangYuan Wang
- a College of Pharmacy , Dalian Medical University , Dalian , China
| | - Yufeng Fu
- a College of Pharmacy , Dalian Medical University , Dalian , China
| | - Liuchi Bao
- a College of Pharmacy , Dalian Medical University , Dalian , China
| | - Yue Jin
- a College of Pharmacy , Dalian Medical University , Dalian , China
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204
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Duan X, Meng Q, Wang C, Liu Z, Sun H, Huo X, Sun P, Ma X, Peng J, Liu K. Effects of calycosin against high-fat diet-induced nonalcoholic fatty liver disease in mice. J Gastroenterol Hepatol 2018; 33:533-542. [PMID: 28699662 DOI: 10.1111/jgh.13884] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Revised: 07/03/2017] [Accepted: 07/10/2017] [Indexed: 12/14/2022]
Abstract
BACKGROUND AND AIM Nonalcoholic fatty liver disease (NAFLD) has become a major health concern worldwide. The present study was designed to investigate the effects of calycosin against high-fat diet (HFD)-induced NAFLD in mice. METHODS C57BL/6 J male mice were fed with HFD to induce NAFLD model and treated with or without calycosin for 12 weeks. The levels of ALT, AST, insulin, and adiponectin were measured using biochemical methods. Hemotoxylin and eosin staining and Oil Red O staining were used to determine the liver histopathology changes and measure the degree of lipid accumulation respectively. Glucose tolerance tests and insulin tolerance tests were performed followed by quantitative insulin sensitivity check index determination. Western blot and quantitative real-time polymerase chain reaction were used to explore the potential mechanism involved in the beneficial effects of calycosin. RESULTS Calycosin effectively decreased the levels of ALT and AST, increased the levels of adiponectin and insulin. Hemotoxylin and eosin staining indicated calycosin treatment remarkably improved liver injury. Oil Red O staining indicated calycosin treatment remarkably improved lipid accumulation. Quantitative insulin sensitivity check index in HFD fed mice was significantly lower than in the standard chow fed mice. Further, calycosin suppressed phosphoenolpyruvate carboxykinase, glucose-6-phosphatase, sterol-regulatory element binding protein 1c, and FASN involved in gluconeogenesis and triglyceride synthesis. Calycosin increased glycogen synthase kinase 3 beta, glucose transporter 4, and phosphorylated insulin receptor substrates 1 and 2 expressions involved in glucose metabolism. The aforementioned beneficial effects of calycosin against HFD-induced NAFLD may be attributed to farnesoid X receptor activation. CONCLUSION Calycosin could produce the favorable effects against HFD-induced NAFLD in mice.
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Affiliation(s)
- Xingping Duan
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, Dalian, China.,Department of Pharmacy, Maternal and Child Health Care Hospital of Zigong, Zigong, Sichuan, China
| | - Qiang Meng
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, Dalian, China.,Provincial Key Laboratory for Pharmacokinetics and Transport, Liaoning, China
| | - Changyuan Wang
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, Dalian, China.,Provincial Key Laboratory for Pharmacokinetics and Transport, Liaoning, China
| | - Zhihao Liu
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, Dalian, China.,Provincial Key Laboratory for Pharmacokinetics and Transport, Liaoning, China
| | - Huijun Sun
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, Dalian, China.,Provincial Key Laboratory for Pharmacokinetics and Transport, Liaoning, China
| | - Xiaokui Huo
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, Dalian, China.,Provincial Key Laboratory for Pharmacokinetics and Transport, Liaoning, China
| | - Pengyuan Sun
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, Dalian, China.,Provincial Key Laboratory for Pharmacokinetics and Transport, Liaoning, China
| | - Xiaodong Ma
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, Dalian, China
| | - Jinyong Peng
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, Dalian, China.,Provincial Key Laboratory for Pharmacokinetics and Transport, Liaoning, China
| | - Kexin Liu
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, Dalian, China.,Provincial Key Laboratory for Pharmacokinetics and Transport, Liaoning, China
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205
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Zheng L, Yin L, Xu L, Qi Y, Li H, Xu Y, Han X, Liu K, Peng J. Protective effect of dioscin against thioacetamide-induced acute liver injury via FXR/AMPK signaling pathway in vivo. Biomed Pharmacother 2018; 97:481-488. [DOI: 10.1016/j.biopha.2017.10.153] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Revised: 10/25/2017] [Accepted: 10/25/2017] [Indexed: 12/30/2022] Open
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206
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Hu X, He X, Ma X, Su H, Ying L, Peng J, Wang Y, Bao Y, Zhou J, Jia W. A decrease in serum 1,5-anhydroglucitol levels is associated with the presence of a first-degree family history of diabetes in a Chinese population with normal glucose tolerance. Diabet Med 2018; 35:131-136. [PMID: 29057494 DOI: 10.1111/dme.13534] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/17/2017] [Indexed: 12/17/2022]
Abstract
AIM This study aimed to investigate alterations in HbA1c , glycated albumin (GA) and 1,5-anhydroglucitol (1,5-AG) in Chinese first-degree relatives of individuals with diabetes (FDR) in pursuit of an index for early screening of glucose metabolism disturbance. METHODS A total of 467 participants (age range: 20-78 years) with normal weight and normal glucose tolerance, as determined by a 75-g oral glucose tolerance test, were enrolled. HbA1c was measured using high-performance liquid chromatography. Serum GA and 1,5-AG levels were determined by enzymatic methods. Serum insulin levels were measured using an electrochemiluminescence immunoassay. RESULTS The study population included 208 FDR and 259 non-FDR. Serum 1,5-AG levels were lower in FDR than that in non-FDR (20.4 ± 7.5 vs 23.8 ± 8.3 μg/ml, P < 0.001), but HbA1c and GA levels did not differ between them (P = 0.835 and 0.469, respectively). Logistic regression analysis revealed an independent relationship between a first-degree family history of diabetes and reduced serum 1,5-AG levels (odds ratio = 0.944, P < 0.001). Multiple regression analysis showed that a first-degree family history of diabetes (β = -3.041, P < 0.001) and insulinogenic index (β = 0.081, P = 0.001) were independently associated with serum 1,5-AG levels. CONCLUSION In a Chinese population with normal glucose tolerance, serum 1,5-AG levels were lower among FDR, and serum 1,5-AG levels were independently associated with FDR status. For FDR, serum 1,5-AG levels were more sensitive than HbA1c or GA levels to early-phase abnormality in glucose metabolism.
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Affiliation(s)
- X Hu
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Clinical Center for Diabetes, Shanghai Diabetes Institute, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai, China
| | - X He
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Clinical Center for Diabetes, Shanghai Diabetes Institute, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai, China
| | - X Ma
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Clinical Center for Diabetes, Shanghai Diabetes Institute, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai, China
| | - H Su
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Clinical Center for Diabetes, Shanghai Diabetes Institute, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai, China
| | - L Ying
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Clinical Center for Diabetes, Shanghai Diabetes Institute, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai, China
| | - J Peng
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Clinical Center for Diabetes, Shanghai Diabetes Institute, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai, China
| | - Y Wang
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Clinical Center for Diabetes, Shanghai Diabetes Institute, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai, China
| | - Y Bao
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Clinical Center for Diabetes, Shanghai Diabetes Institute, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai, China
| | - J Zhou
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Clinical Center for Diabetes, Shanghai Diabetes Institute, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai, China
| | - W Jia
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Clinical Center for Diabetes, Shanghai Diabetes Institute, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai, China
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207
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Xu L, Gu L, Tao X, Xu Y, Qi Y, Yin L, Han X, Peng J. Effect of dioscin on promoting liver regeneration via activating Notch1/Jagged1 signal pathway. Phytomedicine 2018; 38:107-117. [PMID: 29425642 DOI: 10.1016/j.phymed.2017.11.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2017] [Revised: 10/20/2017] [Accepted: 11/12/2017] [Indexed: 06/08/2023]
Abstract
BACKGROUND Development of novel candidates to promote liver regeneration is critical important after partial hepatectomy (PH). Dioscin, a natural product, shows potent effect on liver protection in our previous works. PURPOSE This work aimed to investigate the effect and underlying mechanisms of dioscin on liver regeneration. METHODS The promoting proliferation effects of dioscin on mouse hepatocytem AML12 cells, rat primary hepatocytes, rats and mice after 70% PH were evaluated. RESULTS Dioscin significantly promoted proliferation of rat primary hepatocytes and AML12 cells through MTT, BrdU and PCNA staining assays. Meanwhile, dioscin rapidly recovered the liver to body weight ratios, declined ALT and AST levels, and relieved hepatocytes necrosis compared with 70% PH operation groups in rats and mice. Mechanistic test showed that dioscin significantly increased Notch1 and Jagged1 levels, and accelerated γ-secretase activity by up-regulating PS1 expression, leading to nuclear translocation of Notch1 intracellular domain (NICD1). Subsequently, the significant activation of Notch-dependent target genes (Hey1, Hes1, EGFR, VEGF), and cell-cycle regulatory proteins (CyclinD1, CyclinE1, CDK4 and CDK2) were all recognized. In addition, these results were further confirmed by Notch1 siRNA silencing and inhibition of γ-secretase by DAPT (a well-characterized γ-secretase inhibitor) in vitro. CONCLUSIONS Dioscin, as a novel efficient γ-secretase activator, NICD1 nucleus translocation promoter and cell cycle regulator, markedly activated Notch1/Jagged1 pathway to promote hepato-proliferation. Our findings provide novel insights into dioscin as a natural product with facilitating liver regeneration after PH.
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Affiliation(s)
- Lina Xu
- College of Pharmacy, Dalian Medical University, Western 9 Lvshunnan Road, Dalian 116044, China
| | - Lina Gu
- College of Pharmacy, Dalian Medical University, Western 9 Lvshunnan Road, Dalian 116044, China
| | - Xufeng Tao
- College of Pharmacy, Dalian Medical University, Western 9 Lvshunnan Road, Dalian 116044, China
| | - Youwei Xu
- College of Pharmacy, Dalian Medical University, Western 9 Lvshunnan Road, Dalian 116044, China
| | - Yan Qi
- College of Pharmacy, Dalian Medical University, Western 9 Lvshunnan Road, Dalian 116044, China
| | - Lianhong Yin
- College of Pharmacy, Dalian Medical University, Western 9 Lvshunnan Road, Dalian 116044, China
| | - Xu Han
- College of Pharmacy, Dalian Medical University, Western 9 Lvshunnan Road, Dalian 116044, China
| | - Jinyong Peng
- College of Pharmacy, Dalian Medical University, Western 9 Lvshunnan Road, Dalian 116044, China.
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208
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Zhou Z, Wang L, Feng P, Yin L, Wang C, Zhi S, Dong J, Wang J, Lin Y, Chen D, Xiong Y, Peng J. Corrigendum: Inhibition of Epithelial TNF-α Receptors by Purified Fruit Bromelain Ameliorates Intestinal Inflammation and Barrier Dysfunction in Colitis. Front Immunol 2017; 8:1769. [PMID: 29266133 PMCID: PMC5733476 DOI: 10.3389/fimmu.2017.01769] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Accepted: 11/27/2017] [Indexed: 11/13/2022] Open
Affiliation(s)
- Zijuan Zhou
- Laboratory Animal Center, Dalian Medical University, Dalian, China
| | - Liang Wang
- Laboratory Animal Center, Dalian Medical University, Dalian, China
| | - Panpan Feng
- Laboratory Animal Center, Dalian Medical University, Dalian, China
| | - Lianhong Yin
- College of Pharmacy, Dalian Medical University, Dalian, China
| | - Chen Wang
- Dalian Medical University, Dalian, China
| | | | - Jianyi Dong
- Laboratory Animal Center, Dalian Medical University, Dalian, China
| | - Jingyu Wang
- Laboratory Animal Center, Dalian Medical University, Dalian, China
| | - Yuan Lin
- College of Pharmacy, Dalian Medical University, Dalian, China
| | - Dapeng Chen
- Laboratory Animal Center, Dalian Medical University, Dalian, China
- *Correspondence: Dapeng Chen, ; Yongjian Xiong, ; Jinyong Peng,
| | - Yongjian Xiong
- Central Laboratory, the First Affiliated Hospital, Dalian Medical University, Dalian, China
- College of Integrative Medicine, Dalian Medical University, Dalian, China
- *Correspondence: Dapeng Chen, ; Yongjian Xiong, ; Jinyong Peng,
| | - Jinyong Peng
- College of Pharmacy, Dalian Medical University, Dalian, China
- *Correspondence: Dapeng Chen, ; Yongjian Xiong, ; Jinyong Peng,
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209
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Chen J, Peng J, Xiao Q, Pan Y, Zhang X, Lo LJ, Xu N. The genetic diversity and population structures of indigenous pig breeds in Zhejiang Province revealed by GGRS sequencing. Anim Genet 2017; 49:36-42. [PMID: 29194688 DOI: 10.1111/age.12625] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/05/2017] [Indexed: 02/02/2023]
Abstract
Chinese indigenous pigs in Zhejiang Province are well known for their high fecundity. In order to verify breed subdivision at the genomic level, we investigated genetic diversity and population structure of seven breeds and made comparisons with three Western pig breeds using next-generation sequencing data. Parameters obtained from allelic richness and proportion of polymorphic markers indicated that the genetic diversity of the Chinese indigenous pigs was higher than that of the Western pigs, with the highest and lowest values found in the Chaluand and the Landrace pigs respectively. Both neighbor-joining tree and principal components analysis could distinguish breeds from one another and structure analysis showed less differentiation among Western pigs than among the Chinese pigs. The average linkage disequilibrium decay over distance was significantly less in the Chinese pigs compared with the Western pigs, ranging from 188.2 to 280.6 kb for the Chinese pigs and 680.3 to 752.8 kb for the Western breeds and showing an average r2 threshold value of 0.3. Results obtained from high-density SNP comparison over the whole genome on genetic diversity and population structure were in agreement with the current breed classification of the pigs in Zhejiang Province. More importantly, the results presented here advances our current understanding of the genomic biology of Chinese indigenous pigs in Zhejiang Province and allows for implementation of conservation strategies in additional breeds.
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Affiliation(s)
- J Chen
- College of Animal Science, Zhejiang University, Hangzhou, Zhejiang Province, 310058, China
| | - J Peng
- Department of Breast Surgery, Renji Hospital, Shanghai Jiaotong University, Shanghai, 200127, China
| | - Q Xiao
- Department of Animal Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Y Pan
- Department of Animal Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - X Zhang
- Institute of Animal Science, Hangzhou Academy of Agricultural Sciences, Hangzhou, 310024, China
| | - L J Lo
- College of Animal Science, Zhejiang University, Hangzhou, Zhejiang Province, 310058, China
| | - N Xu
- College of Animal Science, Zhejiang University, Hangzhou, Zhejiang Province, 310058, China
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210
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Sun Y, Wang C, Meng Q, Liu Z, Huo X, Sun P, Sun H, Ma X, Peng J, Liu K. Targeting P-glycoprotein and SORCIN: Dihydromyricetin strengthens anti-proliferative efficiency of adriamycin via MAPK/ERK and Ca 2+ -mediated apoptosis pathways in MCF-7/ADR and K562/ADR. J Cell Physiol 2017; 233:3066-3079. [PMID: 28681913 DOI: 10.1002/jcp.26087] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2017] [Accepted: 07/05/2017] [Indexed: 12/22/2022]
Abstract
Recently, a new target Ca2+ -binding protein SORCIN was reported to participate in multidrug resistance (MDR) in cancer. Here we aim to investigate whether dihydromyricetin (DMY), a dihydroflavonol compound with anti-inflamatory, anti-oxidant, anti-bacterial and anti-tumor actions, reverses MDR in MCF-7/ADR and K562/ADR and to elucidate its potential molecular mechanism. DMY enhanced cytotoxicity of adriamycin (ADR) by downregulating MDR1 mRNA and P-gp expression through MAPK/ERK pathway and also inhibiting the function of P-gp significantly. Meanwhile, DMY decreased mRNA and protein expression of SORCIN, which resulted in elevating intracellular free Ca2+ . Finally, we investigated co-administration ADR with DMY remarkably increased ADR-induced apoptosis. Further study showed DMY elevated ROS levels and caspase-12 protein expression, which signal apoptosis in endoplasmic reticulum. At the same time, proteins related to mitochondrial apoptosis were also changed such as Bcl-2, Bax, caspase-3, caspase-9, and PARP. Finally, nude mice model also demonstrated that DMY strengthened anti-tumor activity of ADR in vivo. In conclusion, DMY reverses MDR by downregulating P-gp, SORCIN expression and increasing free Ca2+ , as well as, inducing apoptosis in MCF-7/ADR and K562/ADR. These fundamental findings provide evidence for further clinical research in application of DMY as an assistant agent in the treatment of cancer.
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Affiliation(s)
- Yaoting Sun
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, Dalian, Liaoning, China
| | - Changyuan Wang
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, Dalian, Liaoning, China.,Provincial Key Laboratory for Pharmacokinetics and Transport, Liaoning Dalian Medical University, Dalian, Liaoning, China
| | - Qiang Meng
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, Dalian, Liaoning, China.,Provincial Key Laboratory for Pharmacokinetics and Transport, Liaoning Dalian Medical University, Dalian, Liaoning, China
| | - Zhihao Liu
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, Dalian, Liaoning, China.,Provincial Key Laboratory for Pharmacokinetics and Transport, Liaoning Dalian Medical University, Dalian, Liaoning, China
| | - Xiaokui Huo
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, Dalian, Liaoning, China.,Provincial Key Laboratory for Pharmacokinetics and Transport, Liaoning Dalian Medical University, Dalian, Liaoning, China
| | - Pengyuan Sun
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, Dalian, Liaoning, China.,Provincial Key Laboratory for Pharmacokinetics and Transport, Liaoning Dalian Medical University, Dalian, Liaoning, China
| | - Huijun Sun
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, Dalian, Liaoning, China.,Provincial Key Laboratory for Pharmacokinetics and Transport, Liaoning Dalian Medical University, Dalian, Liaoning, China
| | - Xiaodong Ma
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, Dalian, Liaoning, China.,Provincial Key Laboratory for Pharmacokinetics and Transport, Liaoning Dalian Medical University, Dalian, Liaoning, China
| | - Jinyong Peng
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, Dalian, Liaoning, China.,Provincial Key Laboratory for Pharmacokinetics and Transport, Liaoning Dalian Medical University, Dalian, Liaoning, China
| | - Kexin Liu
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, Dalian, Liaoning, China.,Provincial Key Laboratory for Pharmacokinetics and Transport, Liaoning Dalian Medical University, Dalian, Liaoning, China
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211
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Zhou Z, Wang L, Feng P, Yin L, Wang C, Zhi S, Dong J, Wang J, Lin Y, Chen D, Xiong Y, Peng J. Inhibition of Epithelial TNF-α Receptors by Purified Fruit Bromelain Ameliorates Intestinal Inflammation and Barrier Dysfunction in Colitis. Front Immunol 2017; 8:1468. [PMID: 29176974 PMCID: PMC5686092 DOI: 10.3389/fimmu.2017.01468] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Accepted: 10/19/2017] [Indexed: 12/25/2022] Open
Abstract
Activation of the TNF-α receptor (TNFR) leads to an inflammatory response, and anti-TNF therapy has been administered to reduce inflammation symptoms and heal mucosal ulcers in inflammatory bowel disease (IBD). Bromelain, a complex natural mixture of proteolytic enzymes, has been shown to exert anti-inflammatory effects. This study aimed to investigate the effect of purified fruit bromelain (PFB)-induced inhibition of epithelial TNFR in a rat colitis model. Colitis was established by intracolonic administration of 2, 4, 6-trinitrobenzene sulfonic acid. Expression of TNFR1 and TNFR2 was measured by quantitative RT-PCR and western blotting. The effect of PFB on colitis was evaluated by examining the inflammatory response and intestinal epithelial barrier function. Our results showed that both TNFR1 and TNFR2 expression were significantly increased in a colitis model, and the increase was significantly reversed by PFB. Colitis symptoms, including infiltration of inflammatory cells, cytokine profiles, epithelial cell apoptosis, and epithelial tight junction barrier dysfunction were significantly ameliorated by PFB. Compared with fruit bromelain and stem bromelain complex, the inhibition of TNFR2 induced by PFB was stronger than that exhibited on TNFR1. These results indicate that PFB showed a stronger selective inhibitory effect on TNFR2 than TNFR1. In other words, purification of fruit bromelain increases its selectivity on TNFR2 inhibition. High expression of epithelial TNFRs in colitis was significantly counteracted by PFB, and PFB-induced TNFR inhibition ameliorated colitis symptoms. These results supply novel insights into potential IBD treatment by PFB.
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Affiliation(s)
- Zijuan Zhou
- Laboratory Animal Center, Dalian Medical University, Dalian, China
| | - Liang Wang
- Laboratory Animal Center, Dalian Medical University, Dalian, China
| | - Panpan Feng
- Laboratory Animal Center, Dalian Medical University, Dalian, China
| | - Lianhong Yin
- College of pharmacy, Dalian Medical University, Dalian, China
| | - Chen Wang
- Dalian Medical University, Dalian, China
| | | | - Jianyi Dong
- Laboratory Animal Center, Dalian Medical University, Dalian, China
| | - Jingyu Wang
- Laboratory Animal Center, Dalian Medical University, Dalian, China
| | - Yuan Lin
- College of pharmacy, Dalian Medical University, Dalian, China
| | - Dapeng Chen
- Laboratory Animal Center, Dalian Medical University, Dalian, China
| | - Yongjian Xiong
- Central Laboratory, the First Affiliated Hospital, Dalian Medical University, Dalian, China.,College of Integrative Medicine, Dalian Medical University, Dalian, China
| | - Jinyong Peng
- College of pharmacy, Dalian Medical University, Dalian, China
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212
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Feng B, Shang J, Wu SH, Chen H, Han Y, Li YQ, Zhang DZ, Zhao LF, Wei SF, Mao Q, Yin CB, Han T, Wang MR, Chen SJ, Li J, Xie Q, Zhen Z, Gao ZL, Zhang YX, Gong GZ, Yang DL, Pan C, Sheng JF, Tang H, Ning Q, Shi GF, Niu JQ, Luo GH, Sun YT, You H, Wang GQ, Zhang LL, Peng J, Zhang Q, Liu JJ, Chen CW, Chen XY, Zhao W, Wang RH, Sun L, Wei L. [Efficacy and safety of pegylated interferon α-2b injection (Y shape, 40 kD) in treatment of patients with genotype 1/6 chronic hepatitis C]. Zhonghua Gan Zang Bing Za Zhi 2017; 25:187-194. [PMID: 28482405 DOI: 10.3760/cma.j.issn.1007-3418.2017.03.006] [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: 02/05/2023]
Abstract
Objective: To investigate the efficacy and safety of the new investigational drug pegylated interferon α-2b (Peg-IFN-α-2b) (Y shape, 40 kD) injection (180 µg/week) combined with ribavirin in the treatment of patients with genotype 1/6 chronic hepatitis C (CHC), with standard-dose Peg-IFN-α-2a combined with ribavirin as a positive control. Methods: A multicenter, randomized, open-label, and positive-controlled phase III clinical trial was performed. Eligible patients with genotype 1/6 CHC were screened out and randomly divided into Peg-IFN-α-2b(Y shape, 40kD) group and Peg-IFN-α-2a group at a ratio of 2:1. The patients in both groups were given oral ribavirin for 48 weeks in addition and then followed up for 24 weeks after drug withdrawal. Abbott Real Time HCV Genotype II was used to determine HCV genotype, and Cobas TaqMan quantitative real-time PCR was used to measure HCV RNA level at 0, 4, 12, 24, 48, and 72 weeks. Adverse events were recorded in detail. The primary efficacy endpoint was sustained virological response (SVR), and a non-inferiority test was also performed. Results: A total of 561 patients with genotype 1/6 CHC were enrolled, among whom 529 received treatment; 90.9% of these patients had genotype 1 CHC. The data of the full analysis set showed that SVR rate was 69.80% (95% CI 65.00%-74.60%) in the trial group and 74.16% (95% CI 67.73%-80.59%) in the control group (P = 0.297 0). The data of the per protocol set (PPS) showed that SVR rate was 80.63% (95% CI 76.04%-85.23%) in the trial group and 81.33% (95% CI 75.10%-87.57%) in the control group (P = 0.849 8), and the 95% CI of rate difference conformed to the non-inferiority standard. The analysis of the PPS population showed that of all subjects, 47.9% achieved rapid virologic response, with a positive predictive value of 93.8%. The incidence rate of adverse events was 96.30% in the trial group and 94.94% in the control group, and the incidence rate of serious adverse events was 5.13% in the trail group and 5.06% in the control group. Conclusion: In the regimen of Peg-IFN-α combined with ribavirin for the treatment of genotype 1/6 CHC, the new investigational drug Peg-IFN-α-2b(Y shape, 40 kD) has comparable clinical effect and safety to the control drug Peg-IFN-α-2a.
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Affiliation(s)
- B Feng
- Peking University People's Hospital, Peking University Hepatology Institute, Beijing Key Laboratory of Hepatitis C and Immunotherapy for Liver Diseases, Beijing 100044, China
| | - J Shang
- Department of Infectious Diseases, Henan Provincial People's Hospital, Zhengzhou 450003, China
| | - S H Wu
- Department of Infectious Diseases, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - H Chen
- Department of Infectious Diseases, The First Affiliated Hospital of Lanzhou University, Lanzhou 730000, China
| | - Y Han
- Department of Gastroenterology, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China
| | - Y Q Li
- Department of Infectious Diseases, 302 Military Hospital, Beijing 100039, China
| | - D Z Zhang
- Department of Infectious Diseases, Institute for Viral Hepatitis, Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, China
| | - L F Zhao
- Department of Infectious Diseases, The First Affiliated Hospital of Shanxi University, Taiyuan 030001, China
| | - S F Wei
- Department of Infectious Diseases, The First Affiliated Hospital of Anhui Medical University, Hefei 230022, China
| | - Q Mao
- Department of Infectious Disease, Southeast Hospital, Third Military Medical University, Chongqing 400038, China
| | - C B Yin
- Department of Infectious Diseases, Guangzhou Eighth People's Hospital, Guangzhou 510060, China
| | - T Han
- Department of Hepatology, Tianjin Third Central Hospital, Tianjin Medical University, Tianjin 300170, China
| | - M R Wang
- Institute of Liver Disease, Nanjing 81 Hospital, Nanjing 210002, China
| | - S J Chen
- Department of Hepatology, Jinan Infectious Disease Hospital, Jinan 250021, China
| | - J Li
- Department of Infectious Diseases, Jiangsu Provincial People's Hospital, Nanjing 210029, China
| | - Q Xie
- Department of Infectious Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Z Zhen
- Department of Infectious Diseases, The Third Affiliated Hospital of Hebei Medical University, Shijiazhuang 050051, China
| | - Z L Gao
- Department of Infectious Diseases, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510630, China
| | - Y X Zhang
- Department of Infectious Diseases, The First Affiliated Hospital of Xinjiang Medical University, Wulumuqi 830054, China
| | - G Z Gong
- Department of Infectious Diseases, The Second Xiangya Hospital of Central South University, Changsha 410011, China
| | - D L Yang
- Department of Infectious Disease, Institute of Infectious Disease, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - C Pan
- Department of Hepatology, Fuzhou Infectious Disease Hospital, Fuzhou, 350025, China
| | - J F Sheng
- The First Affiliated Hospital of Zhengjiang University, Hangzhou 310003, China
| | - H Tang
- Department of Infectious Diseases, Sichuan University West China Hospital, Chengdu 610041, China
| | - Q Ning
- Department of Infectious Disease, Institute of Infectious Disease, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - G F Shi
- Department of Infectious Diseases, Huashan Hospital, Shanghai 200040, China
| | - J Q Niu
- Department of Infectious Diseases, The First Affiliated Hospital of Jilin University, Changchun 130062, China
| | - G H Luo
- Department of Infectious Diseases, The First Affiliated Hospital of Guangxi Medical Universtiy, Nanning 530021, China
| | - Y T Sun
- Department of Infectious Diseases, Tangdu Hospital, Fourth Military Medical University, Xi'an 710038, China
| | - H You
- Liver Research Center, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - G Q Wang
- Department of Infectious Diseases, Peking University First Hospital, Beijing 100034, China
| | - L L Zhang
- Department of Infectious Diseases, The First Affiliated Hospital of Nanchang University, Nanchang 360102, China
| | - J Peng
- Department of Infectious Diseases, Nangfang Hospital, Southern Medical University, Guangzhou 510510, China
| | - Q Zhang
- Shanghai Public Health Clinical Center, Fudan University, Shanghai 201508, China
| | - J J Liu
- Department of Infectious Diseases, The First Affiliated Hospital of Xiamen University, Xiamen 361003, China
| | - C W Chen
- Nanjing Military Command Liver Disease Research Center, Shanghai 200000, China
| | - X Y Chen
- Hepatology Department, Youan Hospital, Capital Medical University, Beijing 100069, China
| | - W Zhao
- Department of Hepatology, The Second Affiliated Hospital of the Southeast University, Nanjing 210003, China
| | - R H Wang
- Xiamen Amoytop Biotech Co., Ltd, Xiamen, 361022, China
| | - L Sun
- Xiamen Amoytop Biotech Co., Ltd, Xiamen, 361022, China
| | - L Wei
- Peking University People's Hospital, Peking University Hepatology Institute, Beijing Key Laboratory of Hepatitis C and Immunotherapy for Liver Diseases, Beijing 100044, China
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213
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Peng J, Zhang J, Ye J, Zhang X, Wu H, Xu J, He Y. S-1 combined with oxaliplatin or cisplatin in neoadjuvant chemotherapy for stage IIb/III gastric adenocarcinoma - efficacy and safety results of a randomized clinical trial. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx660.007] [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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214
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Yin L, Qi Y, Xu Y, Xu L, Han X, Tao X, Song S, Peng J. Dioscin Inhibits HSC-T6 Cell Migration via Adjusting SDC-4 Expression: Insights from iTRAQ-Based Quantitative Proteomics. Front Pharmacol 2017; 8:665. [PMID: 29033837 PMCID: PMC5627034 DOI: 10.3389/fphar.2017.00665] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2017] [Accepted: 09/06/2017] [Indexed: 12/25/2022] Open
Abstract
Hepatic stellate cells (HSCs) migration, an important bioprocess, contributes to the development of liver fibrosis. Our previous studies have found the potent activity of dioscin against liver fibrosis by inhibiting HSCs proliferation, triggering the senescence and inducing apoptosis of activated HSCs, but the molecular mechanisms associated with cell migration were not clarified. In this work, iTRAQ (isobaric tags for relative and absolution quantitation)-based quantitative proteomics study was carried out, and a total of 1566 differentially expressed proteins with fold change ≥2.0 and p < 0.05 were identified in HSC-T6 cells treated by dioscin (5.0 μg/mL). Based on Gene Ontology classification, String and KEGG pathway assays, the effects of dioscin to inhibit cell migration via regulating SDC-4 were carried out. The results of wound-healing, cell migration and western blotting assays indicated that dioscin significantly inhibit HSC-T6 cell migration through SDC-4-dependent signal pathway by affecting the expression levels of Fn, PKCα, Src, FAK, and ERK1/2. Specific SDC-4 knockdown by shRNA also blocked HSC-T6 cell migration, and dioscin slightly enhanced the inhibiting effect. Taken together, the present work showed that SDC-4 played a crucial role on HSC-T6 cell adhesion and migration of dioscin against liver fibrosis, which may be one potent therapeutic target for fibrotic diseases.
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Affiliation(s)
- Lianhong Yin
- College of Pharmacy, Dalian Medical UniversityDalian, China
| | - Yan Qi
- College of Pharmacy, Dalian Medical UniversityDalian, China
| | - Youwei Xu
- College of Pharmacy, Dalian Medical UniversityDalian, China
| | - Lina Xu
- College of Pharmacy, Dalian Medical UniversityDalian, China
| | - Xu Han
- College of Pharmacy, Dalian Medical UniversityDalian, China
| | - Xufeng Tao
- College of Pharmacy, Dalian Medical UniversityDalian, China
| | - Shasha Song
- College of Pharmacy, Dalian Medical UniversityDalian, China
| | - Jinyong Peng
- College of Pharmacy, Dalian Medical UniversityDalian, China
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215
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Song Y, Kong L, Sun B, Gao L, Chu P, Ahsan A, Qaed E, Lin Y, Peng J, Ma X, Zhang J, Wang S, Tang Z. Induction of autophagy by an oleanolic acid derivative, SZC017, promotes ROS-dependent apoptosis through Akt and JAK2/STAT3 signaling pathway in human lung cancer cells. Cell Biol Int 2017; 41:1367-1378. [PMID: 28880428 DOI: 10.1002/cbin.10868] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [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: 05/18/2017] [Accepted: 09/03/2017] [Indexed: 12/13/2022]
Abstract
The signal transducers and activators of transcription 3 (STAT3) signaling pathway is a common feature in many solid tumors including non-small cell lung cancer, whereas current therapies usually fail to treat this disease in majority of cases. In the present study, we aimed to investigate the cytotoxic effect and the underlying mechanisms of SZC017, an oleanolic acid derivative, on human lung cancer cells. Cell viability was significantly decreased in SZC017-treated lung cancer cells. Mechanistically, SZC017 reduced A549 cell viability by activating both apoptosis and autophagy pathways. SZC017 was able to inhibit the phosphorylation of Akt, JAK2, and STAT3 in A549 cells, resulting in the inactivation of Akt and JAK2/STAT3 signaling pathways. In addition, SZC017 could induce ROS generation and Ca2+ release. Pretreatment with N-Acetyl L-Cysteine, a ROS scavenger, could fully reverse SZC017-induced ROS and increase the expression of Akt, p-STAT3, and procaspase-3, while decrease the ratio of LC3-II/I and the expression of Beclin-1. In summary, our study provides pharmacological evidence that SZC017 exhibits potential use in the treatment of lung cancer.
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Affiliation(s)
- Yanlin Song
- Department of Pharmacology, Dalian Medical University, 9 West Section, South Road of Lvshun, Dalian, China
| | - Lingqi Kong
- College of Pharmaceutical Science and Technology, Dalian University of Technology, Dalian, China
| | - Bin Sun
- Department of Pharmacology, Dalian Medical University, 9 West Section, South Road of Lvshun, Dalian, China
| | - Lei Gao
- Department of Pharmacology, Dalian Medical University, 9 West Section, South Road of Lvshun, Dalian, China
| | - Peng Chu
- Department of Pharmacology, Dalian Medical University, 9 West Section, South Road of Lvshun, Dalian, China
| | - Anil Ahsan
- Department of Pharmacology, Dalian Medical University, 9 West Section, South Road of Lvshun, Dalian, China
| | - Eskandar Qaed
- Department of Pharmacology, Dalian Medical University, 9 West Section, South Road of Lvshun, Dalian, China
| | - Yuan Lin
- Department of Pharmacology, Dalian Medical University, 9 West Section, South Road of Lvshun, Dalian, China
| | - Jinyong Peng
- Department of Pharmacology, Dalian Medical University, 9 West Section, South Road of Lvshun, Dalian, China
| | - Xiaodong Ma
- Department of Pharmacology, Dalian Medical University, 9 West Section, South Road of Lvshun, Dalian, China
| | - Jianbin Zhang
- Department of Pharmacology, Dalian Medical University, 9 West Section, South Road of Lvshun, Dalian, China
| | - Shisheng Wang
- College of Pharmaceutical Science and Technology, Dalian University of Technology, Dalian, China
| | - Zeyao Tang
- Department of Pharmacology, Dalian Medical University, 9 West Section, South Road of Lvshun, Dalian, China
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216
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NI S, Peng J, Huang D, Sun H, Wang L, Tan C, Cai J, Sheng W. HER2 overexpression and amplification in patients with colorectal cancer (HOLIC): A large-scale retrospective study in Chinese population. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx393.089] [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: 11/12/2022] Open
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217
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Feng Q, Xu M, Yu YY, Hou Y, Mi X, Sun YX, Ma S, Zuo XY, Shao LL, Hou M, Zhang XH, Peng J. High-dose dexamethasone or all-trans-retinoic acid restores the balance of macrophages towards M2 in immune thrombocytopenia. J Thromb Haemost 2017; 15:1845-1858. [PMID: 28682499 DOI: 10.1111/jth.13767] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [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: 01/13/2017] [Indexed: 01/08/2023]
Abstract
Essentials M1/M2 imbalance is involved in many autoimmune diseases, and could be restored. The expressions and functions of M1 and M2 were investigated in an in vitro culture system. A preferred M1 polarization is involved in the pathogenesis of immune thrombocytopenia (ITP). High-dose dexamethasone or all-trans-retinoic acid restores M1/M2 balance in ITP patients. SUMMARY Background Immune thrombocytopenia (ITP) is an autoimmune disorder. Deficiency of immune tolerance in antigen-presenting cells and cross-communication between antigen-presenting cells and T cells are involved in the pathogenesis of ITP. Macrophages can polarize into proinflammatory M1 or anti-inflammatory M2 phenotypes in response to different environmental stimuli, and have diverse immunologic functions. Objectives To investigate the M1/M2 imbalance in ITP and whether high-dose dexamethasone (HD-DXM) or all-trans-retinoic acid (ATRA) could restore this imbalance. Methods The numbers of M1 and M2 macrophages in the spleens of ITP patients and patients with traumatic spleen rupture were analyzed by immunofluorescence. Monocyte-derived macrophages were cultured and induced with cytokines and drugs. The expression of M1 and M2 markers and functions of M1 and M2 macrophages before and after modulation by HD-DXM or ATRA were evaluated with flow cytometry and ELISA. Results There was preferred M1 polarization in ITP spleens as compared with healthy controls. Monocyte-derived macrophages from ITP patients had increased expression of M1 markers and impaired immunosuppressive functions. Either HD-DXM or ATRA corrected this imbalance by decreasing the expression of M1 markers and increasing the expression of M2 markers. Moreover, HD-DXM-modulated or ATRA-modulated macrophages suppressed both CD4+ and CD8+ T-cell proliferation and expanded CD4+ CD49+ LAG3+ type 1 T-regulatory cells. HD-DXM or ATRA modulated macrophages to shift the T-cell cytokine profile towards Th2. Treating patients with HD-DXM or ATRA revealed that macrophages induced from responders showed a predominant M2-like phenotype and immunosuppressive function. Conclusions Aberrant macrophage polarization is involved in the pathogenesis of ITP. Either HD-DXM or ATRA is able to correct this imbalance.
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MESH Headings
- Adolescent
- Adult
- Aged
- Biomarkers/metabolism
- CD8-Positive T-Lymphocytes/drug effects
- CD8-Positive T-Lymphocytes/immunology
- CD8-Positive T-Lymphocytes/metabolism
- Case-Control Studies
- Cell Proliferation/drug effects
- Cells, Cultured
- Coculture Techniques
- Cytokines/metabolism
- Dexamethasone/adverse effects
- Dexamethasone/therapeutic use
- Female
- Humans
- Immunologic Factors/adverse effects
- Immunologic Factors/therapeutic use
- Lymphocyte Activation/drug effects
- Macrophage Activation/drug effects
- Macrophages/drug effects
- Macrophages/immunology
- Macrophages/metabolism
- Male
- Middle Aged
- Phagocytosis/drug effects
- Phenotype
- Purpura, Thrombocytopenic, Idiopathic/drug therapy
- Purpura, Thrombocytopenic, Idiopathic/immunology
- Purpura, Thrombocytopenic, Idiopathic/metabolism
- Spleen/drug effects
- Spleen/immunology
- Spleen/metabolism
- T-Lymphocytes, Helper-Inducer/drug effects
- T-Lymphocytes, Helper-Inducer/immunology
- T-Lymphocytes, Helper-Inducer/metabolism
- T-Lymphocytes, Regulatory/drug effects
- T-Lymphocytes, Regulatory/immunology
- T-Lymphocytes, Regulatory/metabolism
- Treatment Outcome
- Tretinoin/adverse effects
- Tretinoin/therapeutic use
- Young Adult
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Affiliation(s)
- Q Feng
- Department of Hematology, Qilu Hospital, Shandong University, Jinan, China
| | - M Xu
- Department of Hematology, Qilu Hospital, Shandong University, Jinan, China
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Canada
| | - Y Y Yu
- Department of Hematology, Qilu Hospital, Shandong University, Jinan, China
| | - Y Hou
- Department of Hematology, Qilu Hospital, Shandong University, Jinan, China
| | - X Mi
- Department of Hematology, Qilu Hospital, Shandong University, Jinan, China
| | - Y X Sun
- Department of Hematology, Qilu Hospital, Shandong University, Jinan, China
| | - S Ma
- Department of Hematology, Qilu Hospital, Shandong University, Jinan, China
| | - X Y Zuo
- Department of Hematology, Qilu Hospital, Shandong University, Jinan, China
| | - L L Shao
- Department of Hematology, Qilu Hospital, Shandong University, Jinan, China
| | - M Hou
- Department of Hematology, Qilu Hospital, Shandong University, Jinan, China
- Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education and Chinese Ministry of Health, Jinan, China
| | - X H Zhang
- Peking University People's Hospital, Peking University Institute of Hematology, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China
| | - J Peng
- Department of Hematology, Qilu Hospital, Shandong University, Jinan, China
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218
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Xu L, Yin L, Tao X, Qi Y, Han X, Xu Y, Song S, Li L, Sun P, Peng J. Dioscin, a potent ITGA5 inhibitor, reduces the synthesis of collagen against liver fibrosis: Insights from SILAC-based proteomics analysis. Food Chem Toxicol 2017; 107:318-328. [DOI: 10.1016/j.fct.2017.07.014] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Revised: 07/04/2017] [Accepted: 07/05/2017] [Indexed: 11/26/2022]
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219
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Tao X, Xu L, Yin L, Han X, Qi Y, Xu Y, Song S, Zhao Y, Peng J. Dioscin induces prostate cancer cell apoptosis through activation of estrogen receptor-β. Cell Death Dis 2017; 8:e2989. [PMID: 28796245 PMCID: PMC5596577 DOI: 10.1038/cddis.2017.391] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Revised: 06/22/2017] [Accepted: 07/10/2017] [Indexed: 12/31/2022]
Abstract
Recent researches have shown that estrogen receptor-β (ERβ) activator may be a potent anticancer agent for prostate cancer (PCa), and our previous study also indicated that dioscin can upregulate the expression of ERβ in MC3T3-E1 cell. In the present work, the activity and mechanism of dioscin, a natural product, against PCa were investigated. The results showed that dioscin markedly inhibited cell viability, colony formation, motility and induced apoptosis in PC3 cells. Moreover, dioscin disrupted the formation of PC3 cell-derived mammospheres and reduced aldehyde dehydrogenase (ALDH) level and the CD133+/CD44+ cells, indicating that dioscin had a potent inhibitory activity on prostate cancer stem cells (PCSCs). In vivo results also showed that dioscin significantly suppressed the tumor growth of PC3 cell xenografts in nude mice. Furthermore, mechanism investigation showed that dioscin markedly upregulated ERβ expression level, subsequently increased prolyl hydroxylase 2 level, decreased the levels of hypoxia-inducible factor-1α, vascular endothelial growth factor A and BMI-1, and thus induced cell apoptosis by regulating the expression levels of caspase-3 and Bcl-2 family proteins. In addition, transfection experiment of ERβ-siRNA further indicated that diosicn showed excellent activity against PCa in vitro and in vivo by increasing ERβ expression level. The co-immunoprecipitation (Co-IP) results further suggested that dioscin promoted the interaction of c-ABL and ERβ, but did not change c-ABL expression. Moreover, the molecular docking assay showed that dioscin processed powerful affinity toward to ERβ mainly through the strong hydrogen bonding and hydrophobic effects, and the actions of dioscin on ERβ activation and tumor cells inhibition were significantly weakened in the mutational (Phe-336, Phe-468) PC3 cells. Collectively, these findings proved that dioscin exerted efficient anti-PCa activity via activation of ERβ, which should be developed as an efficient candidate in clinical for treating this cancer in the future.
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Affiliation(s)
- Xufeng Tao
- College of Pharmacy, Dalian Medical University, Western 9 Lvshunnan Road, Dalian 116044, China
| | - Lina Xu
- College of Pharmacy, Dalian Medical University, Western 9 Lvshunnan Road, Dalian 116044, China
| | - Lianhong Yin
- College of Pharmacy, Dalian Medical University, Western 9 Lvshunnan Road, Dalian 116044, China
| | - Xu Han
- College of Pharmacy, Dalian Medical University, Western 9 Lvshunnan Road, Dalian 116044, China
| | - Yan Qi
- College of Pharmacy, Dalian Medical University, Western 9 Lvshunnan Road, Dalian 116044, China
| | - Youwei Xu
- College of Pharmacy, Dalian Medical University, Western 9 Lvshunnan Road, Dalian 116044, China
| | - Shasha Song
- College of Pharmacy, Dalian Medical University, Western 9 Lvshunnan Road, Dalian 116044, China
| | - Yanyan Zhao
- College of Pharmacy, Dalian Medical University, Western 9 Lvshunnan Road, Dalian 116044, China
| | - Jinyong Peng
- College of Pharmacy, Dalian Medical University, Western 9 Lvshunnan Road, Dalian 116044, China
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Zhang Y, Tao X, Yin L, Xu L, Xu Y, Qi Y, Han X, Song S, Zhao Y, Lin Y, Liu K, Peng J. Protective effects of dioscin against cisplatin-induced nephrotoxicity via the microRNA-34a/sirtuin 1 signalling pathway. Br J Pharmacol 2017; 174:2512-2527. [PMID: 28514495 PMCID: PMC5513863 DOI: 10.1111/bph.13862] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [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: 12/17/2016] [Revised: 05/09/2017] [Accepted: 05/10/2017] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND AND PURPOSE Dioscin exhibits a range of pharmacological actions but little is known of its effects on cisplatin (CDDP)-induced nephrotoxicity. Here, we have assessed the effects and the possible mechanisms of dioscin against CDDP-induced nephrotoxicity. EXPERIMENTAL APPROACH We used an in vivo model of CDDP-induced nephrotoxicity in rats and mice and, in vitro, cultures of NRK-52E and HK-2 cells. The dual luciferase reporter assay was used to demonstrate modulation, by dioscin, of the targeting of sirtuin 1 (Sirt1) by microRNA (miR)-34a. Molecular docking assays were used to analyse the effects of dioscin with Sirt1, Keap1 and NF-κB. KEY RESULTS Dioscin attenuated cell damage in vitro and decreased renal injury in rats and mice, treated with CDDP. In terms of mechanisms, dioscin reversed CDDP-induced up-regulation of miR-34a and thus up-regulated Sirt1 levels. In addition, dioscin altered levels of haem oxygenase 1, glutathione-cysteine ligase subunits (GCLC, GCLM) and Keap1, along with increased nuclear translocation of Nrf2, thus decreasing oxidative stress. Also, dioscin affected levels of AP-1, COX-2, HMGB1, IκB-α, IL-1β, IL-6 and TNF-α and decreased the ratio of acetylated NF-κB and normal NF-κB, to suppress inflammation. From molecular docking assays, dioscin directly bound to Sirt1, Keap1 and NF-κBp65 by hydrogen bonding and/or hydrophobic interactions. CONCLUSIONS AND IMPLICATIONS Our results have linked CDDP-induced nephrotoxicity and the miR-34a/Sirt1 signalling pathway, which was modulated by dioscin. This natural product could be developed as a new candidate to alleviate CDDP-induced renal injury.
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Affiliation(s)
- Yimeng Zhang
- College of PharmacyDalian Medical UniversityDalianChina
| | - Xufeng Tao
- College of PharmacyDalian Medical UniversityDalianChina
| | - Lianhong Yin
- College of PharmacyDalian Medical UniversityDalianChina
| | - Lina Xu
- College of PharmacyDalian Medical UniversityDalianChina
| | - Youwei Xu
- College of PharmacyDalian Medical UniversityDalianChina
| | - Yan Qi
- College of PharmacyDalian Medical UniversityDalianChina
| | - Xu Han
- College of PharmacyDalian Medical UniversityDalianChina
| | - Shasha Song
- College of PharmacyDalian Medical UniversityDalianChina
| | - Yanyan Zhao
- College of PharmacyDalian Medical UniversityDalianChina
| | - Yuan Lin
- College of PharmacyDalian Medical UniversityDalianChina
| | - Kexin Liu
- College of PharmacyDalian Medical UniversityDalianChina
| | - Jinyong Peng
- College of PharmacyDalian Medical UniversityDalianChina
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Chuan-Shang C, Wei H, Peng J. 710 Effect of oregano essential oil supplementation to a reduced-protein diet on meat quality, fatty acid composition, and oxidative stability of longissimus thoracis muscle in growing-finishing pigs. J Anim Sci 2017. [DOI: 10.2527/asasann.2017.710] [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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222
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Wei H, Zhao X, Xia M, Gao J, Htoo JK, Peng J. 721 Effects of the standardized ileal digestible methionine to lysine ratio on milk performance, litter growth and plasma indices of lactating sows. J Anim Sci 2017. [DOI: 10.2527/asasann.2017.721] [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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Cheng C, Wei H, Peng J. 375 Effect of oregano essential oil supplementation to a reduced-protein diet on meat quality, fatty acid composition, and oxidative stability of longissimus thoracis muscle in growing–finishing pigs. J Anim Sci 2017. [DOI: 10.2527/asasann.2017.375] [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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Liu Y, Cheng Y, Xu Y, Wang Z, Du X, Li C, Peng J, Gao L, Liang X, Ma C. Increased expression of programmed cell death protein 1 on NK cells inhibits NK-cell-mediated anti-tumor function and indicates poor prognosis in digestive cancers. Oncogene 2017; 36:6143-6153. [PMID: 28692048 PMCID: PMC5671935 DOI: 10.1038/onc.2017.209] [Citation(s) in RCA: 227] [Impact Index Per Article: 32.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2017] [Revised: 05/10/2017] [Accepted: 05/17/2017] [Indexed: 12/13/2022]
Abstract
Abnormal expression of activating/inhibitory receptors leads to natural killer (NK) cells dysfunction in tumor. Here we show that programmed cell death protein 1 (PD-1), a well-known immune checkpoint of T cells, is highly expressed on peripheral and tumor-infiltrating NK cells from patients with digestive cancers including esophageal, liver, colorectal, gastric and biliary cancer. The increased PD-1 expression on NK cells indicates poorer survival in esophageal and liver cancers. Blocking PD-1/PD-L1 signaling markedly enhances cytokines production and degranulation and suppresses apoptosis of NK cells in vitro. PD-1/PD-L1 exerts inhibitory effect through repressing the activation of PI3K/AKT signaling in NK cells. More importantly, a PD-1 blocking antibody was found to significantly suppress the growth of xenografts in nude mice, and this inhibition of tumor growth was completely abrogated by NK depletion. These findings strongly suggested that PD-1 is an inhibitory regulator of NK cells in digestive cancers. PD-1 blockade might be an efficient strategy in NK cell-based tumor immunotherapy.
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Affiliation(s)
- Y Liu
- Key Laboratory for Experimental Teratology of Ministry of Education and Department of Immunology, Shandong University School of Medicine, Jinan, Shandong, China.,Department of Radiation Oncology, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Y Cheng
- Department of Radiation Oncology, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Y Xu
- Key Laboratory for Experimental Teratology of Ministry of Education and Department of Immunology, Shandong University School of Medicine, Jinan, Shandong, China
| | - Z Wang
- Key Laboratory for Experimental Teratology of Ministry of Education and Department of Immunology, Shandong University School of Medicine, Jinan, Shandong, China
| | - X Du
- Key Laboratory for Experimental Teratology of Ministry of Education and Department of Immunology, Shandong University School of Medicine, Jinan, Shandong, China
| | - C Li
- Key Laboratory for Experimental Teratology of Ministry of Education and Department of Immunology, Shandong University School of Medicine, Jinan, Shandong, China
| | - J Peng
- Department of Hematology, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - L Gao
- Key Laboratory for Experimental Teratology of Ministry of Education and Department of Immunology, Shandong University School of Medicine, Jinan, Shandong, China
| | - X Liang
- Key Laboratory for Experimental Teratology of Ministry of Education and Department of Immunology, Shandong University School of Medicine, Jinan, Shandong, China
| | - C Ma
- Key Laboratory for Experimental Teratology of Ministry of Education and Department of Immunology, Shandong University School of Medicine, Jinan, Shandong, China
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Chan D, Hong C, Lee I, Hung L, Chang C, Peng J, Tsai K, Yang R. ESTABLISHING AN ANTI-OSTEOPOROSIS MEDICA
TION MONITORING AND MANAGEMENT SERVICE IN NORTHERN TAIWAN. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.1958] [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: 11/13/2022] Open
Affiliation(s)
- D. Chan
- National Taiwan University Hospital, Taipei, Taiwan,
- National Taiwan University Hospital Chu-Tung Branch, Hsinchu County, Taiwan
| | - C. Hong
- National Taiwan University Hospital, Taipei, Taiwan,
| | - I. Lee
- National Taiwan University Hospital, Taipei, Taiwan,
| | - L. Hung
- National Taiwan University Hospital, Taipei, Taiwan,
| | - C. Chang
- National Taiwan University Hospital, Taipei, Taiwan,
| | - J. Peng
- National Taiwan University Hospital, Bei-Hu Branch, Taipei, Taiwan,
| | - K. Tsai
- National Taiwan University Hospital, Taipei, Taiwan,
| | - R. Yang
- National Taiwan University Hospital, Taipei, Taiwan,
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Cheng L, Ma H, Shao M, Fan Q, Lv H, Peng J, Hao T, Li D, Zhao C, Zong X. Synthesis of folate‑chitosan nanoparticles loaded with ligustrazine to target folate receptor positive cancer cells. Mol Med Rep 2017. [PMID: 28627615 PMCID: PMC5562069 DOI: 10.3892/mmr.2017.6740] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
In addition to its vasodilatory effect, ligustrazine (LZ) improves the sensitivity of multidrug resistant cancer cells to chemotherapeutic agents. To enhance the specificity of LZ delivery to tumor cells/tissues, folate-chitosan nanoparticles (FA-CS-NPs) were synthesized by combination of folate ester with the amine group on chitosan to serve as a delivery vehicle for LZ (FA-CS-LZ-NPs). The structure of folate-chitosan and characteristics of FA-CS-LZ-NPs, including its size, encapsulation efficiency, loading capacity and release rates were analyzed. MCF-7 (folate receptor-positive) and A549 (folate receptor-negative) cells cultured with or without folate were treated with FA-CS-LZ-NPs, CS-LZ-NPs or LZ to determine cancer-targeting specificity of FA-CS-LZ-NPs. Fluorescence intensity of intracellular LZ was observed by laser scanning confocal microscopy, and concentration of intracellular LZ was detected by HPLC. The average size of FA-CS-LZ-NPs was 182.7±0.56 nm, and the encapsulation efficiency and loading capacity was 59.6±0.23 and 15.3±0.16% respectively. The cumulative release rate was about 95% at pH 5.0, which was higher than that at pH 7.4. There was higher intracellular LZ accumulation in MCF-7 than that in A549 cells and intracellular LZ concentration was not high when MCF-7 cells were cultured with folate. These results indicated that the targeting specificity of FA-CS-LZ-NPs was mediated by folate receptor. Therefore, the FA-CS-LZ-NPs may be a potential folate receptor-positive tumor cell targeting drug delivery system that could possibly overcome multidrug resistance during cancer therapy.
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Affiliation(s)
- Lichun Cheng
- Department of Pharmacy, The Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116027, P.R. China
| | - Hui Ma
- Department of Pharmacy, The Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116027, P.R. China
| | - Mingkun Shao
- Department of Pharmacy, The Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116027, P.R. China
| | - Qing Fan
- Department of Pharmacy, The Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116027, P.R. China
| | - Huiyi Lv
- Department of Pharmacy, The Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116027, P.R. China
| | - Jinyong Peng
- College of Pharmacy, Dalian Medical University, Dalian, Liaoning 116044, P.R. China
| | - Tangna Hao
- Department of Pharmacy, The Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116027, P.R. China
| | - Daiwei Li
- Department of Pharmacy, The Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116027, P.R. China
| | - Chenyang Zhao
- Department of Pharmacy, The Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116027, P.R. China
| | - Xingyue Zong
- Medical Sciences Program, Indiana University School of Medicine, Bloomington, IN 47408, USA
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227
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Yang PP, Peng J, Wu YY, Liu Z, Sheng P, Zhou Y, Li SJ, Fan YM. Immunohistochemical evaluation of epidermal proliferation, differentiation and melanocytic density in symmetrical acrokeratoderma. Clin Exp Dermatol 2017; 42:509-515. [PMID: 28543665 DOI: 10.1111/ced.13118] [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] [Accepted: 10/16/2016] [Indexed: 12/11/2022]
Abstract
BACKGROUND Symmetrical acrokeratoderma (SAK) is characterized by brown to black hyperkeratotic patches on acral regions. Although epidermal hyperkeratosis and acanthosis are consistent pathological changes, the nature of epidermal hyperplasia is unknown. AIM To evaluate epidermal proliferation and differentiation and melanocytic density in skin lesions of SAK. METHODS Expression of keratin 10 (K10), K14, K16, involucrin, filaggrin, Ki-67, and Melan-A was detected by immunohistochemistry in eight patients with SAK, seven patients with ichthyosis vulgaris (IV) and six healthy controls (HCs). RESULTS Expression of K14, K16, involucrin and filaggrin was upregulated in patients with SAK compared with patients with IV and the HCs (P < 0.01-0.05), but K10 expression was similar for the three groups (P > 0.05). Numbers of Ki-67+ and Melan-A+ cells were higher in patients with SAK than in patients with IV and the HCs (P < 0.05). CONCLUSIONS These results demonstrate that excessive keratinocyte proliferation and abnormal differentiation contribute to epidermal hyperplasia, while melanocytic proliferation is responsible for the pigmented lesions in SAK.
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Affiliation(s)
- P-P Yang
- Department of Dermatology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - J Peng
- Department of Dermatology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Y-Y Wu
- Department of Dermatology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Z Liu
- Department of Dermatology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - P Sheng
- Department of Dermatology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Y Zhou
- Department of Dermatology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - S-J Li
- Department of Dermatology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Y-M Fan
- Department of Dermatology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
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228
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Deng XL, Yin F, Zhang CL, Ma YP, He F, Wu LW, Peng J. [Dynamin-1-related infantile spasms: a case report and review of literature]. Zhonghua Er Ke Za Zhi 2017; 54:856-859. [PMID: 27806796 DOI: 10.3760/cma.j.issn.0578-1310.2016.11.014] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze the clinical and gene mutation characteristics of dynamin-1 (DNM1)-related infantile spasms. Method: Clinical, laboratory and genetic data of one case of DNM1-related infantile spasms diagnosed by Xiangya Hospital in September 2015 were analyzed.Through taking "Dynamin-1" "DNM1" as key words to search at CNKI, Wanfang, PubMed and OMIM to date (April 2016), the clinical characteristics of 9 reported cases of DNM1-related epileptic encephalopathy in international literature with our case were reviewed. Result: The boy is the second child of healthy and nonconsanguineous parents.At 7 months, he started to have seizures with head dropping, and he was brought for the first time to our hospital at the age of 17 months.The patient presented with severe psychomotor retardation, epilepsy, muscular hypotonia, and electroencephalography showed hypsarhythmia.He received 28 days of adrenocorticotropic hormone (ACTH) therapy.After that, his seizures were improved with valproic acid and levetiracetam, and disappeared between 3 years and 5 months to 5 years and 5 months of age on treatment with valproic acid only.Exome-sequencing study (trios) identified novel heterozygous mutation c. 443A>G (p.Glu148Arg) in DNM1. Up to now, 9 cases of epileptic encephalopathy (infantile spasms or Lennox-Gastaut syndrome) associated with de novo DNM1 gene mutations have been reported. Conclusion: The main clinical features of DNM1 mutations include intractable seizures, intellectual disability, developmental delay, hypotonia, and developmental delay before the onset of seizures.
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Affiliation(s)
- X L Deng
- Department of Pediatrics, Xiangya Hospital of Central South University, Hunan Intellectual and Developmental Disabilities Research Center, Changsha 410008, China
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229
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Chen J, Peng J, Yin F. [MEGDEL syndrome with an SERAC1 mutation: a case report]. Zhonghua Er Ke Za Zhi 2017; 55:394-395. [PMID: 28482397 DOI: 10.3760/cma.j.issn.0578-1310.2017.05.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
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230
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Tang XY, Zhang J, Peng J, Tan SL, Zhang W, Song GB, Liu LM, Li CL, Ren H, Zeng L, Liu ZQ, Chen XP, Zhou XM, Zhou HH, Hu JX, Li Z. The association between GGCX, miR-133 genetic polymorphisms and warfarin stable dosage in Han Chinese patients with mechanical heart valve replacement. J Clin Pharm Ther 2017; 42:438-445. [PMID: 28429387 DOI: 10.1111/jcpt.12527] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [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: 07/04/2016] [Accepted: 03/10/2017] [Indexed: 01/12/2023]
Abstract
WHAT IS KNOWN AND OBJECTIVE Warfarin is a widely used anticoagulant with a narrow therapeutic index. Polymorphisms in the VKORC1, CYP2C9 and CYP4F2 genes have been verified to correlate with warfarin stable dosage (WSD). Whether any other genes or variants affect the dosage is unknown. The aim of our study was to investigate the relationship between GGCX, miR-133 variants and the WSD in Han Chinese patients with mechanical heart valve replacement (MHVR). METHODS A total of 231 patients were enrolled in the study. Blood samples were collected for genotyping. The average WSD among subjects with different GGCX or miR-133 genotypes was compared. Regression analyses were performed to test for any association of genetic polymorphisms with WSD. RESULTS AND DISCUSSION The warfarin dosage in patients with the GGCX rs699664 TT and rs12714145 TT genotypes was 3.77±0.93 (95% CI: 3.35-4.19) mg/d and 3.70±1.00 (95% CI: 3.32-4.09) mg/d, respectively. The GGCX rs699664 and rs12714145 genotypes were significantly associated with WSD (P<.05). But they were ruled out in the multivariate regression analysis. There were no significant differences in the average warfarin stable dosage between subjects with MIR133B rs142410335 wild-type and variant genotypes (P>.05). WHAT IS NEW AND CONCLUSION The genotypes of GGCX rs699644 and rs12714145 were significantly associated with WSD (P<.05), but their contributions were not significant after accounting for other factors. MIR133B rs142410335 makes no significant contributions to warfarin stable dosage in Han Chinese patients with MHVR neither in univariate regression nor in multivariate regression analyses.
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Affiliation(s)
- X-Y Tang
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, China.,Hunan Key Laboratory of Pharmacogenetics, Institute of Clinical Pharmacology, Central South University, Changsha, China
| | - J Zhang
- Department of nephrology, Xiangya Hospital, Central South University, Changsha, China
| | - J Peng
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, China.,Hunan Key Laboratory of Pharmacogenetics, Institute of Clinical Pharmacology, Central South University, Changsha, China.,Pharmacy Department, Jiangxi Province People's Hospital, Nanchang, China
| | - S-L Tan
- Department of Cardio-thoracic Surgery, The Second Xiangya Hospital of CentralSouth University, Changsha, China
| | - W Zhang
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, China.,Hunan Key Laboratory of Pharmacogenetics, Institute of Clinical Pharmacology, Central South University, Changsha, China
| | - G-B Song
- Department of Cardio-thoracic Surgery, The Second Xiangya Hospital of CentralSouth University, Changsha, China
| | - L-M Liu
- Department of nephrology, Xiangya Hospital, Central South University, Changsha, China
| | - C-L Li
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, China.,Hunan Key Laboratory of Pharmacogenetics, Institute of Clinical Pharmacology, Central South University, Changsha, China
| | - H Ren
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, China.,Hunan Key Laboratory of Pharmacogenetics, Institute of Clinical Pharmacology, Central South University, Changsha, China
| | - L Zeng
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, China.,Hunan Key Laboratory of Pharmacogenetics, Institute of Clinical Pharmacology, Central South University, Changsha, China
| | - Z-Q Liu
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, China.,Hunan Key Laboratory of Pharmacogenetics, Institute of Clinical Pharmacology, Central South University, Changsha, China
| | - X-P Chen
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, China.,Hunan Key Laboratory of Pharmacogenetics, Institute of Clinical Pharmacology, Central South University, Changsha, China
| | - X-M Zhou
- Department of nephrology, Xiangya Hospital, Central South University, Changsha, China
| | - H-H Zhou
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, China.,Hunan Key Laboratory of Pharmacogenetics, Institute of Clinical Pharmacology, Central South University, Changsha, China
| | - J-X Hu
- Department of Cardio-thoracic Surgery, The Second Xiangya Hospital of CentralSouth University, Changsha, China
| | - Z Li
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, China.,Hunan Key Laboratory of Pharmacogenetics, Institute of Clinical Pharmacology, Central South University, Changsha, China
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Wang C, Li JL, Wei HK, Zhou YF, Tan JJ, Sun HQ, Jiang SW, Peng J. Effects of feeding regimen on weight gain, semen characteristics, libido, and lameness in 170- to 250-kilogram Duroc boars. J Anim Sci 2017; 94:4666-4676. [PMID: 27898961 DOI: 10.2527/jas.2016-0803] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
A 2-period field trial was conducted to determine the effects of feeding regimen on weight gain, semen characteristics, libido, and lameness in 170- to 200-kg (period 1) and 200- to 250-kg (period 2) boars. Sixty-one Duroc boars were allotted to 1 of 3 dietary treatments and 15 g/d fish oil was also provided for each experimental boar, to maintain the n-6:n-3 intake ratio at approximately 6.1:1. The energy intakes of the 3 treatment groups were controlled by basing the feed intake on a corn-soybean meal-based diet (3.11 Mcal/kg of ME) to create: 1) low energy intake group (L, = 20, 7.3 Mcal/d of ME), 2) medium energy intake group (M, = 20, 7.7 Mcal/d of ME), and 3) high energy intake group (H, = 21, 8.3 Mcal/d of ME) in period 1. Feed intake was then increased to 7.6, 8.2, and 8.6 Mcal/d of ME for the 3 groups, respectively, in period 2. During the 28-wk experimental period, boar weight gain, testis volume, semen characteristics, libido, toe measurements, claw lesions, and lameness were examined, and the number of boars culled in each group was recorded to calculate the culling rate. Although there were no differences in testis volume, sperm concentration, and motility, the percentage of abnormal sperm, the percentage of claw lesions, and claw lesion scores differed among treatments ( > 0.05), and ADG was significantly increased with the increase of energy intake between the 2 periods ( < 0.05). The M and H boars had significantly greater total sperm number and functional sperm number than the L boars ( < 0.05), while no significant difference was observed between the M and H groups ( > 0.05). Nonetheless, the H boars took more time to mount the collection dummy and produce an ejaculate and, in particular, showed a greater percentage of lameness than the L and M boars ( < 0.05). Therefore, the medium energy intake regimen (energy intakes of 7.7 and 8.2 Mcal/d of ME with ADG of 454.5 and 375.3 g/d in 2 periods, respectively) improved the total sperm number and functional sperm number, and meanwhile decreased the occurrence of lameness in 170- to 250-kg Duroc boars.
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Liu H, Qu M, Xu L, Han X, Wang C, Shu X, Yao J, Liu K, Peng J, Li Y, Ma X. Design and synthesis of sulfonamide-substituted diphenylpyrimidines (SFA-DPPYs) as potent Bruton's tyrosine kinase (BTK) inhibitors with improved activity toward B-cell lymphoblastic leukemia. Eur J Med Chem 2017; 135:60-69. [PMID: 28432946 DOI: 10.1016/j.ejmech.2017.04.037] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Revised: 04/04/2017] [Accepted: 04/05/2017] [Indexed: 12/31/2022]
Abstract
A new series of diphenylpyrimidine derivatives (SFA-DPPYs) were synthesized by introducing a functional sulfonamide into the C-2 aniline moiety of pyrimidine template, and then were biologically evaluated as potent Bruton's tyrosine kinase (BTK) inhibitors. Among these molecules, inhibitors 10c, 10i, 10j and 10k displayed high potency against the BTK enzyme, with IC50 values of 1.18 nM, 0.92 nM, 0.42 nM and 1.05 nM, respectively. In particular, compound 10c could remarkably inhibit the proliferation of the B lymphoma cell lines at concentrations of 6.49 μM (Ramos cells) and 13.2 μM (Raji cells), and was stronger than the novel agent spebrutinib. In addition, the inhibitory potency toward the normal PBMC cells showed that inhibitor 10c possesses low cell cytotoxicity. All these explorations indicated that molecule 10c could serve as a valuable inhibitor for B-cell lymphoblastic leukemia treatment.
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Affiliation(s)
- He Liu
- College of Pharmacy, Dalian Medical University, Dalian 116044, PR China
| | - Menghua Qu
- College of Pharmacy, Dalian Medical University, Dalian 116044, PR China
| | - Lina Xu
- College of Pharmacy, Dalian Medical University, Dalian 116044, PR China
| | - Xu Han
- College of Pharmacy, Dalian Medical University, Dalian 116044, PR China
| | - Changyuan Wang
- College of Pharmacy, Dalian Medical University, Dalian 116044, PR China
| | - Xiaohong Shu
- College of Pharmacy, Dalian Medical University, Dalian 116044, PR China
| | - Jihong Yao
- College of Pharmacy, Dalian Medical University, Dalian 116044, PR China
| | - Kexin Liu
- College of Pharmacy, Dalian Medical University, Dalian 116044, PR China
| | - Jinyong Peng
- College of Pharmacy, Dalian Medical University, Dalian 116044, PR China
| | - Yanxia Li
- Department of Respiratory Medicine, The First Affiliated Hospital of Dalian Medical University, Dalian 116011, PR China
| | - Xiaodong Ma
- College of Pharmacy, Dalian Medical University, Dalian 116044, PR China.
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Zhang CL, Yin F, He F, Gai N, Shi ZQ, Peng J. [A childhood-onset rapid-onset dystonia parkinsonism family with ATP1A3 gene mutation and literatures review]. Zhonghua Er Ke Za Zhi 2017; 55:288-293. [PMID: 28441826 DOI: 10.3760/cma.j.issn.0578-1310.2017.04.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Objective: To explore clinical characteristics, treatment, and prognosis of a family with childhood-onset rapid-onset dystonia parkinsonism (RDP) caused by ATP1A3 gene mutation and review literatures. Method: The clinical data of a RDP child, his brother and mother had been analyzed retrospectively. This family was admitted to Xiangya Hospital in January 2016. DNA samples were analyzed by the next-generation sequencing and confirmed by Sanger sequencing. Related literature from PubMed, Online Mendelian Inheritance in Man (OMIM), CNKI and Wanfang databases to date (up to October 2016) with"Rapid-onset dystonia-parkinsonism""RDP""DYT12" as key words was reviewed. Result: The proband boy was three years and four months old (April 2015) when he had the first attack of the disease. After a febricity, he suddenly acquired acute aphasia and limb movement disorder. Rehabilitation therapy and supportive treatment made his speech gradually recovered but still slurred. However, his abnormal walking posture still existed. Nine months later (January 2016, 4 years and one months old), symptoms including aphasia, dysphagia, and weakness with rostrocaudal gradient reoccured after fever. The disease progressed to the critical condition within 24 hours. He"seizured" four times with tonic spasms of limbs but without loss of consciousness. Family history showed his grandparents were consanguineous marriage. His mother and brother also developed abnormal gait and dysarthria after an infection before primary school age. Their symptoms improved gradually without relapsing. However, they did not recover entirely with mild intellectual disability. His mother had a healthy brother and sister. This proband had no other siblings but the brother. Heterozygous missense mutation p. R756H in ATP1A3 gene was detected in this proband, his mother and his brother. This mutation had been reported pathogenically related to RDP, and it located in highly conserved gene region. Benzodiazepine was used for the proband and his brother, with the proband being improved better although not completely. Meanwhile, benzodiazepine had no significant effect on his mother because of poor compliance. This is the first case report of RDP in China. The mutations of ATP1A3 have been previously reported in 51 patients including 6 large families and 16 other unrelated patients. A total of 14 different mutations in ATP1A3 gene with RDP have been reported to date, including 12 missense mutations, a 3-bp in-frame deletion, and a 3-bp in-frame insertion. The sporadic cases all had the typical clinical phenotypes of RDP, such as the abrupt onset of dysarthria, dysphagia, limb dystonia with bradykinesia, and postural instability. The symptoms of bulbar and arms were much more obvious. It was hard to diagnose RDP in a family because some patients had typical symptoms of RDP, while the others might experience from mild symptoms to no symptoms, which might be related to incomplete penetrance of RDP. Two cases carrying the same mutation as our patients also presented some overlapping phenotypes. Conclusion: The p. R756H heterozygous mutation in ATP1A3 gene is the pathogenic mutation of RDP, analysis of genotype-phenotype correlations of RDP will be very important and meaningful.
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Affiliation(s)
- C L Zhang
- Department of Pediatrics, Xiangya Hospital of Central South University/Hunan Intellectual and Developmental Disabilities Research Center, Changsha 410008, China
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Zhao J, Xu Y, Wang C, Ding Y, Chen M, Wang Y, Peng J, Li L, Lv L. Soluplus/TPGS mixed micelles for dioscin delivery in cancer therapy. Drug Dev Ind Pharm 2017; 43:1197-1204. [DOI: 10.1080/03639045.2017.1304956] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Jing Zhao
- School of Pharmacy, Dalian Medical University, Dalian, P.R. China
| | - Youwei Xu
- School of Pharmacy, Dalian Medical University, Dalian, P.R. China
| | - Changyuan Wang
- School of Pharmacy, Dalian Medical University, Dalian, P.R. China
| | - Yanfang Ding
- School of Pharmacy, Dalian Medical University, Dalian, P.R. China
| | - Manyu Chen
- School of Pharmacy, Dalian Medical University, Dalian, P.R. China
| | - Yifei Wang
- School of Pharmacy, Dalian Medical University, Dalian, P.R. China
| | - Jinyong Peng
- School of Pharmacy, Dalian Medical University, Dalian, P.R. China
| | - Lei Li
- School of Pharmacy, Dalian Medical University, Dalian, P.R. China
| | - Li Lv
- School of Pharmacy, Dalian Medical University, Dalian, P.R. China
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235
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Peng J, Zhang Z, Yuan Y, Gao B. PS-08-004 The effect of dapoxetine on semen quality in patients with premature ejaculation in China. J Sex Med 2017. [DOI: 10.1016/j.jsxm.2017.03.260] [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: 10/19/2022]
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236
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Zhang N, Yang Y, Lu H, Xiang Y, Huang X, Hu R, Chen Z, Yuan W, Peng R, Peng J, Ai H, Liu K. Spodoptera litura autophagy-related protein 1 interacts with autophagy-related protein 5 and enhances its degradation. Insect Mol Biol 2017; 26:190-203. [PMID: 27902874 DOI: 10.1111/imb.12284] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
It is known that the autophagy-related protein 1 (ATG1) plays critical roles in the regulation of autophagy in mammals and yeast, whereas the function of ATG1 in lepidopteran insects is not well elucidated. Here Spodoptera litura ATG1 (SlATG1) and its interactions with other ATG proteins were characterized. Alternative splicing of SlAtg1 produced at least four transcript variants. Over-expression and RNA interference knockdown of SlAtg1 demonstrated that SlATG1 enhanced autophagy. SlATG1A-Green fluorescent protein (GFP) tagged localized in the cytoplasm and formed some punctuate dots, which were colocalized with red fluorescent protein mCherry tagged Spodoptera exigua ATG5 (SeATG5). SlATG1A-GFP over-expression reduced the nuclear abundance of mCherry-SeATG5 but increased its cytoplasmic abundance. Pull-down, co-immunoprecipitation and bimolecular fluorescence complementation assays showed that SlATG1A bound to SeATG5 through the N-terminus of SlATG1A. The over-expression of FLAG epitope tagged SlATG1A significantly increased the accumulation of the cleaved GFP from GFP-SeATG5, suggesting the enhanced degradation of GFP-SeATG5. In addition, we confirmed that the interactions of SlATG1 with other autophagy-related proteins were conserved. These results provide the first evidence that ATG1 interacts with ATG5 and enhances its degradation in lepidopteran insect cells, which may have important physiological functions.
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Affiliation(s)
- N Zhang
- School of Life Sciences, Central China Normal University, Wuhan, China
| | - Y Yang
- School of Life Sciences, Central China Normal University, Wuhan, China
| | - H Lu
- School of Life Sciences, Central China Normal University, Wuhan, China
| | - Y Xiang
- School of Life Sciences, Central China Normal University, Wuhan, China
| | - X Huang
- School of Life Sciences, Central China Normal University, Wuhan, China
| | - R Hu
- School of Life Sciences, Central China Normal University, Wuhan, China
| | - Z Chen
- School of Life Sciences, Central China Normal University, Wuhan, China
| | - W Yuan
- School of Life Sciences, Central China Normal University, Wuhan, China
| | - R Peng
- School of Life Sciences, Central China Normal University, Wuhan, China
| | - J Peng
- School of Life Sciences, Central China Normal University, Wuhan, China
| | - H Ai
- School of Life Sciences, Central China Normal University, Wuhan, China
| | - K Liu
- School of Life Sciences, Central China Normal University, Wuhan, China
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237
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Zhou YF, Liu YQ, Wei HK, Peng J. Estimation of the optimum digestible lysine level for Cherry Valley ducks. Poult Sci 2017; 96:838-843. [PMID: 27738116 DOI: 10.3382/ps/pew306] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Accepted: 08/03/2016] [Indexed: 11/20/2022] Open
Abstract
The aim of the current study was to determine the digestible lysine (DLys) requirement of Cherry Valley ducks from 1 to 14 d and from 15 to 35 d of age. One-day-old male Cherry Valley ducks (n = 320) were divided randomly and evenly into five treatments with 8 replicates of 8 birds. Ducks were fed adequate levels of digestible amino acid but with graded levels of DLys: 0.80, 0.88, 0.96, 1.04, and 1.12% from 1 to 14 d; 0.60, 0.68, 0.76, 0.84, and 0.92% from 15 to 35 d. At 35 d of age, 8 ducks per treatment were slaughtered for evaluating the yields of abdominal fat, subcutaneous fat, breast meat, and leg meat. Additionally, a 7-d metabolizable experiment was conducted with ducks of the same hatch beginning on d 35 (8 ducks per treatment). The results showed that the DLys level in diet had a quadratic relationship both with the average daily gain (ADG) and feed:gain ratio (F/G). According to the quadratic model, an optimum digestible lysine level was 0.948% from 0 to 14 d and 0.758% from 15 to 35 d based on ADG. The digestible lysine level for obtaining minimum F/G were 0.986% (0 ∼ 14 d) and 0.792% (15 ∼ 35 d), respectively. Breast meat yield (P = 0.110) and subcutaneous fat percentage (P = 0.021) showed a quadratic or linear response to the increasing dietary DLys level. To achieve maximum breast meat yield, the digestible lysine level of 0.961% and 0.761% were needed for the starter period (1 ∼ 14 d) and the growth period (14 ∼ 35 d), respectively. N excretion showed a quadratic response to the increasing dietary DLys level (P = 0.103). The results of the current study suggested that the optimum digestible lysine level was very different with the response criterion. The dietary digestible lysine levels were 0.948, 0.961% in the starter period (1 ∼ 14 d) and 0.758, 0.761% in the growth period (15 ∼ 35 d) for ADG, F/G, respectively.
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Affiliation(s)
- Y F Zhou
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Y Q Liu
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - H K Wei
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - J Peng
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China.,The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, Hubei, China
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238
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Yao H, Sun Y, Song S, Qi Y, Tao X, Xu L, Yin L, Han X, Xu Y, Li H, Sun H, Peng J. Protective Effects of Dioscin against Lipopolysaccharide-Induced Acute Lung Injury through Inhibition of Oxidative Stress and Inflammation. Front Pharmacol 2017; 8:120. [PMID: 28377715 PMCID: PMC5359219 DOI: 10.3389/fphar.2017.00120] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Accepted: 02/27/2017] [Indexed: 01/01/2023] Open
Abstract
The protective effects of dioscin, a natural steroidal saponin from some medicinal plants including Dioscorea nipponica Makino, against lipopolysaccharide (LPS)- induced acute liver and renal damages have been reported in our previous works. However, the actions of dioscin against LPS-induced acute lung injury (ALI) is still unknown. In the present study, we investigated the effects and mechanisms of dioscin against LPS-induced ALI in vitro and in vivo. The results showed that dioscin obviously inhibited cell proliferation and markedly decreased reactive oxidative species level in 16HBE cells treated by LPS. In addition, dioscin significantly protected LPS-induced histological changes, inhibited the infiltration of inflammatory cells, as well as decreased the levels of MDA, SOD, NO and iNOS in mice and rats (p < 0.05). Mechanistically, dioscin significantly decreased the protein levels of TLR4, MyD88, TRAF6, TKB1, TRAF3, phosphorylation levels of PI3K, Akt, IκBα, NF-κB, and the mRNA levels of IL-1β, IL-6, and TNF-α against oxidative stress and inflammation (p < 0.05). Dioscin significantly reduced the overexpression of TLR4, and obviously down-regulated the levels of MyD88, TRAF6, TKB1, TRAF3, p-PI3K, p-Akt, p-IκBα, and p-NF-κB. These findings provide new perspectives for the study of ALI. Dioscin has protective effects on LPS-induced ALI via adjusting TLR4/MyD88- mediated oxidative stress and inflammation, which should be a potent drug in the treatment of ALI.
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Affiliation(s)
- Hong Yao
- College of Pharmacy, Dalian Medical University, Dalian China
| | - Yiping Sun
- Lab of Medical Function, College of Basic Medical Sciences, Dalian Medical University, Dalian China
| | - Shasha Song
- College of Pharmacy, Dalian Medical University, Dalian China
| | - Yan Qi
- College of Pharmacy, Dalian Medical University, Dalian China
| | - Xufeng Tao
- College of Pharmacy, Dalian Medical University, Dalian China
| | - Lina Xu
- College of Pharmacy, Dalian Medical University, Dalian China
| | - Lianhong Yin
- College of Pharmacy, Dalian Medical University, Dalian China
| | - Xu Han
- College of Pharmacy, Dalian Medical University, Dalian China
| | - Youwei Xu
- College of Pharmacy, Dalian Medical University, Dalian China
| | - Hua Li
- College of Pharmacy, Dalian Medical University, Dalian China
| | - Huijun Sun
- College of Pharmacy, Dalian Medical University, Dalian China
| | - Jinyong Peng
- College of Pharmacy, Dalian Medical University, Dalian China
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239
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Song A, Zhang J, Ge Y, Wang C, Meng Q, Tang Z, Peng J, Liu K, Li Y, Ma X. C-2 (E)-4-(Styryl)aniline substituted diphenylpyrimidine derivatives (Sty-DPPYs) as specific kinase inhibitors targeting clinical resistance related EGFR T790M mutant. Bioorg Med Chem 2017; 25:2724-2729. [PMID: 28385595 DOI: 10.1016/j.bmc.2017.03.032] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [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: 02/18/2017] [Revised: 03/14/2017] [Accepted: 03/16/2017] [Indexed: 12/22/2022]
Abstract
With the aim to overcome the drug resistance induced by the EGFR T790M mutation (EGFRT790M), herein, a family of diphenylpyrimidine derivatives (Sty-DPPYs) bearing a C-2 (E)-4-(styryl)aniline functionality were designed and synthesized as potential EGFRT790M inhibitors. Among them, the compound 10e displayed strong potency against the EGFRT790M enzyme, with the IC50 of 11.0nM. Compound 10e also showed a higher SI value (SI=49.0) than rociletinib (SI=21.4), indicating its less side effect. In addition, compound 10e could effectively inhibit the proliferation of H1975 cells harboring the EGFRT790M mutation, within the concentration of 2.91μM. Significantly, compound 10e has low toxicity against the normal HBE cell (IC50=22.48μM). This work provided new insights into the discovery of potent and selective inhibitor against EGFRT790M over wild-type (EGFRWT).
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Affiliation(s)
- Anran Song
- College of Pharmacy, Dalian Medical University, Dalian 116044, PR China
| | - Jianbin Zhang
- College of Pharmacy, Dalian Medical University, Dalian 116044, PR China
| | - Yang Ge
- College of Pharmacy, Dalian Medical University, Dalian 116044, PR China
| | - Changyuan Wang
- College of Pharmacy, Dalian Medical University, Dalian 116044, PR China
| | - Qiang Meng
- College of Pharmacy, Dalian Medical University, Dalian 116044, PR China
| | - Zeyao Tang
- College of Pharmacy, Dalian Medical University, Dalian 116044, PR China
| | - Jinyong Peng
- College of Pharmacy, Dalian Medical University, Dalian 116044, PR China
| | - Kexin Liu
- College of Pharmacy, Dalian Medical University, Dalian 116044, PR China
| | - Yanxia Li
- Department of Respiratory Medicine, The First Affiliated Hospital of Dalian Medical University, Dalian 116011, PR China
| | - Xiaodong Ma
- College of Pharmacy, Dalian Medical University, Dalian 116044, PR China.
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240
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Yao H, Xu Y, Yin L, Tao X, Xu L, Qi Y, Han X, Sun P, Liu K, Peng J. Dioscin Protects ANIT-Induced Intrahepatic Cholestasis Through Regulating Transporters, Apoptosis and Oxidative Stress. Front Pharmacol 2017; 8:116. [PMID: 28337145 PMCID: PMC5340742 DOI: 10.3389/fphar.2017.00116] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2016] [Accepted: 02/24/2017] [Indexed: 12/18/2022] Open
Abstract
Intrahepatic cholestasis, a clinical syndrome, is caused by excessive accumulation of bile acids in body and liver. Proper regulation of bile acids in liver cells is critical for liver injury. We previously reported the effects of dioscin against α-naphthylisothio- cyanate (ANIT)-induced cholestasis in rats. However, the pharmacological and mechanism data are limited. In our work, the animals of rats and mice, and Sandwich-cultured hepatocytes (SCHs) were caused by ANIT, and dioscin was used for the treatment. The results showed that dioscin markedly altered relative liver weights, restored ALT, AST, ALP, TBIL, GSH, GSH-Px, MDA, SOD levels, and rehabilitated ROS level and cell apoptosis. In mechanism study, dioscin not only significantly regulated the protein levels of Ntcp, OAT1, OCT1, Bsep and Mrp2 to accelerate bile acids excretion, but also regulated the expression levels of Bak, Bcl-xl, Bcl-2, Bax, Caspase 3 and Caspase 9 in vivo and in vitro to improve apoptosis. In addition, dioscin markedly inhibited PI3K/Akt pathway and up-regulated the levels of Nrf2, GCLc, GCLm, NQO1 and HO-1 against oxidative stress (OS) caused by bile acids. These results were further validated by inhibition of PI3K and Akt using the inhibitors of wortmannin and perifosine in SCHs. Our data showed that dioscin had good action against ANIT-caused intrahepatic cholestasis through regulating transporters, apoptosis and OS. This natural product can be considered as one active compound to treat intrahepatic cholestasis in the future.
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Affiliation(s)
- Hong Yao
- College of Pharmacy, Dalian Medical University Dalian, China
| | - Youwei Xu
- College of Pharmacy, Dalian Medical University Dalian, China
| | - Lianhong Yin
- College of Pharmacy, Dalian Medical University Dalian, China
| | - Xufeng Tao
- College of Pharmacy, Dalian Medical University Dalian, China
| | - Lina Xu
- College of Pharmacy, Dalian Medical University Dalian, China
| | - Yan Qi
- College of Pharmacy, Dalian Medical University Dalian, China
| | - Xu Han
- College of Pharmacy, Dalian Medical University Dalian, China
| | - Pengyuan Sun
- College of Pharmacy, Dalian Medical University Dalian, China
| | - Kexin Liu
- College of Pharmacy, Dalian Medical University Dalian, China
| | - Jinyong Peng
- College of Pharmacy, Dalian Medical University Dalian, China
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241
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Tao T, Sondalle SB, Shi H, Zhu S, Perez-Atayde AR, Peng J, Baserga SJ, Look AT. The pre-rRNA processing factor DEF is rate limiting for the pathogenesis of MYCN-driven neuroblastoma. Oncogene 2017; 36:3852-3867. [PMID: 28263972 PMCID: PMC5501763 DOI: 10.1038/onc.2016.527] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [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: 09/27/2016] [Revised: 12/08/2016] [Accepted: 12/22/2016] [Indexed: 02/07/2023]
Abstract
The nucleolar factor, digestive organ expansion factor (DEF), has a key role in ribosome biogenesis, functioning in pre-ribosomal RNA (pre-rRNA) processing as a component of the small ribosomal subunit (SSU) processome. Here we show that the peripheral sympathetic nervous system (PSNS) is very underdeveloped in def-deficient zebrafish, and that def haploinsufficiency significantly decreases disease penetrance and tumor growth rate in a MYCN-driven transgenic zebrafish model of neuroblastoma that arises in the PSNS. Consistent with these findings, DEF is highly expressed in human neuroblastoma, and its depletion in human neuroblastoma cell lines induces apoptosis. Interestingly, overexpression of MYCN in zebrafish and in human neuroblastoma cells results in the appearance of intermediate pre-rRNAs species that reflect the processing of pre-rRNAs through Pathway 2, a pathway that processes pre-rRNAs in a different temporal order than the more often used Pathway 1. Our results indicate that DEF and possibly other components of the SSU processome provide a novel site of vulnerability in neuroblastoma cells that could be exploited for targeted therapy.
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Affiliation(s)
- T Tao
- Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA
| | - S B Sondalle
- Department of Genetics, Yale University School of Medicine, New Haven, CT, USA
| | - H Shi
- Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA.,College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - S Zhu
- Department of Biochemistry and Molecular Biology, Mayo Clinic College of Medicine, Mayo Clinic Cancer Center and Mayo Clinic Center for Individualized Medicine, Rochester, MN, USA.,Department of Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic College of Medicine, Mayo Clinic Cancer Center and Mayo Clinic Center for Individualized Medicine, Rochester, MN, USA
| | - A R Perez-Atayde
- Department of Pathology, Children's Hospital Boston, Harvard Medical School, Boston, MA, USA
| | - J Peng
- College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - S J Baserga
- Departments of Molecular Biophysics &Biochemistry, Genetics and Therapeutic Radiology, Yale University and Yale University School of Medicine, New Haven, CT, USA
| | - A T Look
- Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA
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242
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Li ZP, Xu ZM, Qu XP, Wang SB, Peng J, Mei LH. Fabrication of nanopore and nanoparticle arrays with high aspect ratio AAO masks. Nanotechnology 2017; 28:095301. [PMID: 28071590 DOI: 10.1088/1361-6528/aa585c] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
How to use high aspect ratio anodic aluminum oxide (AAO) membranes as an etching and evaporation mask is one of the unsolved problems in the application of nanostructured arrays. Here we describe the versatile utilizations of the highly ordered AAO membranes with a high aspect ratio of more than 20 used as universal masks for the formation of various nanostructure arrays on various substrates. The result shows that the fabricated nanopore and nanoparticle arrays of substrates inherit the regularity of the AAO membranes completely. The flat AAO substrates and uneven AAO frontages were attached to the Si substrates respectively as an etching mask, which demonstrates that the two kinds of replication, positive and negative, represent the replication of the mirroring of Si substrates relative to the flat AAO substrates and uneven AAO frontages. Our work is a breakthrough for the broad research field of surface nano-masking.
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Affiliation(s)
- Z P Li
- School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China. School of Electronic Information and Engineering, Hubei University of Science and Technology, Xianning 437005, People's Republic of China
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243
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Zhou H, Peng J, Wang D, Kou L, Chen F, Ye M, Deng Y, Yan J, Liao S. Mediating effect of coping styles on the association between psychological capital and psychological distress among Chinese nurses: a cross-sectional study. J Psychiatr Ment Health Nurs 2017; 24:114-122. [PMID: 28233374 DOI: 10.1111/jpm.12350] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/29/2016] [Indexed: 11/28/2022]
Abstract
UNLABELLED WHAT IS KNOWN ON THE SUBJECT?: Studies show that psychological capital (PsyCap) is a protective factor against psychological distress, such as depressive symptoms. However, few have attempted to address the role of coping styles in the relationship between PsyCap and psychological distress. WHAT DOES THIS PAPER ADD TO EXISTING KNOWLEDGE?: Our study found moderate levels of PsyCap among nurses in China. Among the subcategories of PsyCap, optimism and hope were most highly correlated with psychological distress. Psychological distress was positively associated with negative coping and negatively associated with positive coping. This study confirmed the partial mediating effect of coping styles in PsyCap and psychological distress among Chinese nurses. In other words, this study found direct and indirect effects of PsyCap on psychological distress mediated via coping styles. WHAT ARE THE IMPLICATIONS FOR PRACTICE?: The significant mediating effect of negative and positive coping styles between PsyCap and psychological distress has implications for hospital administrators, especially nurse leaders. Effective strategies should be implemented to improve PsyCap and coping styles among Chinese nurses, and alleviate psychological distress. Optimism and hope should be emphasized in PsyCap investment. Different styles of coping are influenced and modified by teaching and experience. Therefore, it is essential that nurse managers organize educational and training programmes to provide nurses with relative coping knowledge and techniques, and improve their coping ability. Several studies suggest that coping styles are affected by social support. Thus, nurse managers should assist nurses with social support and enhance coping strategies to reduce psychological distress. ABSTRACT Introduction PsyCap includes four categories namely self-efficacy, hope, optimism and resilience. Research has demonstrated that PsyCap and coping styles affect current psychological distress. Nevertheless, few studies have explored the role of coping styles in PsyCap and psychological distress. Aim This study investigated the role of coping styles as a mediator in PsyCap and psychological distress among Chinese nurses. Methods Participants included 538 nurses who completed self-report questionnaires assessing PsyCap, coping styles and psychological distress. Linear regression analyses were used to explore the role of coping styles. Results PsyCap, coping styles and psychological distress were significantly correlated. Among the subcategories of PsyCap, optimism and hope were most highly correlated with psychological distress. Coping styles is a partial mediator of PsyCap and psychological distress. Implications for mental health nursing The significant role of negative and positive coping styles in PsyCap and psychological distress has implications for hospital administrators, especially nurse leaders. Effective strategies should be implemented to improve PsyCap and coping styles among Chinese nurses, to alleviate psychological distress. Optimism and hope should be the focus of the improvement. Different styles of coping are developed from education and experience. Therefore, it is necessary for nurse managers to organize educational and training programmes to improve coping skills among nurses. Studies suggest that coping styles are affected by social support. Thus, nurse managers should also assist nurses with social support and enhance coping strategies to reduce psychological distress.
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Affiliation(s)
- H Zhou
- Department of Nursing, Nanfang Hospital, Southern Medical University, Guangdong, China
| | - J Peng
- Department of Nursing, Nanfang Hospital, Southern Medical University, Guangdong, China
| | - D Wang
- School of Nursing, Changsha Medical University, Huna, China
| | - L Kou
- Department of Obstetrics, Beijiao Hospital of Shunde, Foshan, China
| | - F Chen
- Department of Biostatistics, School of Public Health and Tropical Medicine, Southern Medical University, Guangdong, China
| | - M Ye
- Department of Obstetrics, South Medical University Affiliated Maternal & Child Health Hospital of Foshan, Foshan, Guangdong, China
| | - Y Deng
- Department of Neurosurgery, Southern Medical University, Guangdong, China
| | - J Yan
- Department of Information, Southern Medical University, Guangdong, China
| | - S Liao
- Department of Emergency, Nanfang Hospital, Southern Medical University, Guangdong, China
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Zhang S, Chen C, Peng J, Li X, Zhang D, Yan J, Zhang Y, Lu C, Xun J, Li W, Ling Y, Huang Y, Chen L. Investigation of underlying comorbidities as risk factors for symptomatic human hepatitis E virus infection. Aliment Pharmacol Ther 2017; 45:701-713. [PMID: 28078736 DOI: 10.1111/apt.13938] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [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: 05/18/2016] [Revised: 06/16/2016] [Accepted: 12/21/2016] [Indexed: 12/11/2022]
Abstract
BACKGROUND Symptomatic Hepatitis E virus (HEV) infection occurs in few infected subjects, and the risk factors are not completely known. AIM To explore the risk factors for adverse clinical outcomes in acute HEV infections. METHODS A large retrospective study was conducted. The baseline characteristics, clinical outcomes, and laboratory data of 512 acute HEV infection cases were analysed using logistic regression models. RESULTS All patients exhibited autochthonous sporadic HEV infections, and most were elderly. Their symptoms varied from asymptomatic to severe liver diseases. In all, 215 patients (42.0%) had liver failure and/or decompensation, and 45 (8.2%) patients died within 3 months. Nearly 60% of patients had underlying chronic liver diseases (CLDs), 20% were cirrhotic, and various extrahepatic underlying comorbidities were common. The logistic regression analysis revealed that underlying CLDs, especially cirrhosis, were closely associated with disease severity (OR = 8.78, P < 0.001) but not with mortality in patients with severe liver diseases. In addition to the known factors, including an old age, the male gender and CLDs, we identified pre-existing extrahepatic tumours, diabetes, and chronic respiratory and renal diseases as novel independent predictors for adverse clinical outcomes. Importantly, patients without these four extrahepatic comorbidities showed a much lower mortality rate (4.2%, P < 0.001) than patients with one (18.5%) or more comorbidities (34.5%). CONCLUSIONS Previous comorbidities, including tumours, diabetes, and chronic liver, lung and kidney diseases, were independent risk factors for adverse outcomes, especially mortality, in acute HEV infections. This study provides valuable data for improving the prevention and control of HEV infection.
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Affiliation(s)
- S Zhang
- Shanghai Public Health Clinical center, Institutes of Biomedical Sciences, Fudan University, Shanghai, China.,Key Laboratory of Medical Molecular Virology of Ministries of Education/Health, Institute of Medical Microbiology, Shanghai Medical College of Fudan University, Shanghai, China
| | - C Chen
- Department of Hepatology, Shanghai Public Clinical center, Fudan University, Shanghai, China.,Wenzhou Medical University, Wenzhou, Zhejiang
| | - J Peng
- Shanghai Public Health Clinical center, Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - X Li
- Department of Hepatology, Shanghai Public Clinical center, Fudan University, Shanghai, China
| | - D Zhang
- Department of Hepatology, Shanghai Public Clinical center, Fudan University, Shanghai, China
| | - J Yan
- Shanghai Public Health Clinical center, Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Y Zhang
- Shanghai Public Health Clinical center, Institutes of Biomedical Sciences, Fudan University, Shanghai, China.,School of Life Sciences, Hebei Normal University, Shi-Jiazhuang, Hebei
| | - C Lu
- Department of Hepatology, Shanghai Public Clinical center, Fudan University, Shanghai, China
| | - J Xun
- Shanghai Public Health Clinical center, Institutes of Biomedical Sciences, Fudan University, Shanghai, China.,School of Life Sciences, Hebei Normal University, Shi-Jiazhuang, Hebei
| | - W Li
- Department of Hepatology, Shanghai Public Clinical center, Fudan University, Shanghai, China
| | - Y Ling
- Department of Hepatology, Shanghai Public Clinical center, Fudan University, Shanghai, China
| | - Y Huang
- Department of Hepatology, Shanghai Public Clinical center, Fudan University, Shanghai, China
| | - L Chen
- Department of Hepatology, Shanghai Public Clinical center, Fudan University, Shanghai, China
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Zhang Y, Xu Y, Qi Y, Xu L, Song S, Yin L, Tao X, Zhen Y, Han X, Ma X, Liu K, Peng J. Protective effects of dioscin against doxorubicin-induced nephrotoxicity via adjusting FXR-mediated oxidative stress and inflammation. Toxicology 2017; 378:53-64. [DOI: 10.1016/j.tox.2017.01.007] [Citation(s) in RCA: 99] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2016] [Revised: 12/21/2016] [Accepted: 01/06/2017] [Indexed: 02/07/2023]
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246
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Liu Q, Duan RJ, Zhou YF, Wei HK, Peng J, Li JL. Supplementing oregano essential oil to boar diet with strengthened fish oil: Effects on semen antioxidant status and semen quality parameters. Andrologia 2017; 49. [PMID: 28224651 DOI: 10.1111/and.12764] [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] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/10/2016] [Indexed: 11/29/2022] Open
Abstract
Previous research has shown benefits of dietary fish oil supplementation on semen quality of boars. However, little is known about how antioxidant protects lipid peroxidation on spermatozoa from n-3 polyunsaturated fatty acid (PUFA) addition. This study evaluated the effect of oregano essential oil (OEO) supplementation on semen antioxidant status and semen quality in boars fed a diet enriched with fish oil. Thirty-four mature boars of proven fertility, received daily 2.5 kg basal diet top-dressed with 45 g soybean oil and 15 g fish oil to meet the n-3 PUFA requirement of spermatozoa, randomly allocated to one of four groups supplemented with 100 mg α-tocopheryl acetate kg-1 (control), or 250 or 500 or 750 mg OEO kg-1 for 16 weeks. Semen was collected at weeks 0, 8, 12 and 16 for measurements of sperm production, motion characteristics, sperm α-tocopherol content, antioxidant enzyme activities, reactive oxygen species (ROS), DNA damage (8-hydroxydeoxyguanosine, 8-OHdG), lipoperoxidation (malondialdehyde, MDA) and seminal total antioxidant capacity (TAC). Sperm production and motion characteristics were similar (p > .05) among groups throughout the experimental week 16, but increased (p < .01) with experimental week. Although higher α-tocopherol content and superoxide dismutase (SOD) activities were in OEO group spermatozoa, feeding diet with 500 mg/kg OEO resulted in elevation in seminal TAC, decrease in sperm ROS, MDA and 8-OHdG than control group (p < .05). Overall, these results support the view that oregano essential oil has a positive effect on antioxidant capacity in boar when used fish oil.
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Affiliation(s)
- Q Liu
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - R J Duan
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Y F Zhou
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - H K Wei
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - J Peng
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, China.,The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, China
| | - J L Li
- Key Lab of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education & Key Lab of Swine Genetics and Breeding of Ministry of Agriculture, Huazhong Agricultural University, Wuhan, China.,YangXiang Joint Stock Company, Guigang, China
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247
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Yang XL, Zhao YL, Babcock LE, Peng J. Siliceous spicules in a vauxiid sponge (Demospongia) from the Kaili Biota(Cambrian Stage 5), Guizhou, South China. Sci Rep 2017; 7:42945. [PMID: 28220860 PMCID: PMC5318851 DOI: 10.1038/srep42945] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Accepted: 01/17/2017] [Indexed: 11/25/2022] Open
Abstract
Fossils of the sponge Angulosuspongia sinensis from calcareous mudstones of the middle and upper part of the Kaili Formation (Cambrian Stage 5) in the Jianhe area of Guizhou province, South China, exhibit an apparently reticulate pattern, characteristic of the Vauxiidae. Energy Dispersive X-Ray Spectrometry (EDS) and Raman spectroscopy analysis indicate the presence of silica in the skeletal elements of these fossils, suggesting that this taxon possessed a skeleton comprised of spicules. This is the first confirmation of siliceous skeletal elements in fossils of the family Vauxiidae, and it lends support to the hypothesis that some early demosponges possessed biomineralized siliceous skeletons, which were subsequently lost and replaced by spongin later in the evolutionary history of this lineage. The new materials provide critical insight into the phylogeny and evolution of biomineralization in the Demosopongiae.
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Affiliation(s)
- X-L Yang
- College of Resource and Environment Engineering, Guizhou University, Guiyang 550025, China.,State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, CAS, Nanjing 210008, China
| | - Y-L Zhao
- College of Resource and Environment Engineering, Guizhou University, Guiyang 550025, China
| | - L E Babcock
- School of Earth Sciences, The Ohio State University, Columbus 43210, USA
| | - J Peng
- College of Resource and Environment Engineering, Guizhou University, Guiyang 550025, China
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248
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Duan X, Meng Q, Wang C, Liu Z, Liu Q, Sun H, Sun P, Yang X, Huo X, Peng J, Liu K. Calycosin attenuates triglyceride accumulation and hepatic fibrosis in murine model of non-alcoholic steatohepatitis via activating farnesoid X receptor. Phytomedicine 2017; 25:83-92. [PMID: 28190475 DOI: 10.1016/j.phymed.2016.12.006] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Revised: 11/28/2016] [Accepted: 12/12/2016] [Indexed: 06/06/2023]
Abstract
BACKGROUND Non-alcoholic steatohepatitis (NASH) represents the more severe end of hepatic steatosis and is associated with progressive liver disease. Calycosin, derived from the root of Radix Astragali, has been demonstrated to have favorable efficacy on acute liver injury. PURPOSE The present study was to investigate the hepatoprotective effect of calycosin on attenuating triglyceride accumulation and hepatic fibrosis, as well as explore the potential mechanism in murine model of NASH. STUDY DESIGN The C57BL/6 male mice were fed with methionine choline deficient (MCD) diet for 4 weeks to induce NASH and treated with or without calycosin by oral gavage for 4 weeks. METHODS The body weight, liver weight and the liver to body weight ratios were measured. Serum ALT, AST, TG, TC, FFA, MCP-1 and mKC levels were accessed by biochemical methods. H&E staining and Oil red O staining were used to identify the amelioration of liver histopathology. Immunohistochemistry of a-SMA, Masson trichrome staining and Sirius red staining were used to identify the amelioration of hepatic fibrosis. The quantitative real-time-PCR and Western blot were applied to observe the expression changes of key factors involved in triglyceride synthesis, free fatty acid β-oxidation and hepatic fibrosis. RESULTS Calycosin significantly inhibited body weight loss induced by MCD diet, decreased the ALT and AST activities, MCP-1 and mKC in a dose-dependent manner. The H&E and Oil red O staining indicated calycosin effectively improved hepatic steatosis, improved the degree of triglyceride accumulation. Masson trichrome and Sirius red staining indicated that calycosin treatment remarkably attenuated the degree of hepatic fibrosis. Immunohistochemistry of a-SMA demonstrated that calycosin attenuated hepatic fibrosis by inhibiting hepatic stellate cell activation. Further, calycosin inhibited the expression of SREBP-1c, FASN, ACC and SCD1 involved in triglyceride synthesis, promoted the expression of PPARa, CPT1, Syndecan-1 and LPL involved in free fatty acid β-oxidation. The above effects of calycosin were attributed to FXR activation. CONCLUSION Calycosin attenuates triglyceride accumulation and hepatic fibrosis to protect against NASH via FXR activation.
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Affiliation(s)
- Xingping Duan
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, 9 West Section, Lvshun South Road, Lvshunkou District, Dalian, Liaoning, China; Provincial Key Laboratory for Pharmacokinetics and Transport, Dalian, Liaoning, China
| | - Qiang Meng
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, 9 West Section, Lvshun South Road, Lvshunkou District, Dalian, Liaoning, China; Provincial Key Laboratory for Pharmacokinetics and Transport, Dalian, Liaoning, China.
| | - Changyuan Wang
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, 9 West Section, Lvshun South Road, Lvshunkou District, Dalian, Liaoning, China; Provincial Key Laboratory for Pharmacokinetics and Transport, Dalian, Liaoning, China
| | - Zhihao Liu
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, 9 West Section, Lvshun South Road, Lvshunkou District, Dalian, Liaoning, China; Provincial Key Laboratory for Pharmacokinetics and Transport, Dalian, Liaoning, China
| | - Qi Liu
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, 9 West Section, Lvshun South Road, Lvshunkou District, Dalian, Liaoning, China; Provincial Key Laboratory for Pharmacokinetics and Transport, Dalian, Liaoning, China
| | - Huijun Sun
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, 9 West Section, Lvshun South Road, Lvshunkou District, Dalian, Liaoning, China; Provincial Key Laboratory for Pharmacokinetics and Transport, Dalian, Liaoning, China
| | - Pengyuan Sun
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, 9 West Section, Lvshun South Road, Lvshunkou District, Dalian, Liaoning, China
| | - Xiaobo Yang
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, 9 West Section, Lvshun South Road, Lvshunkou District, Dalian, Liaoning, China; Provincial Key Laboratory for Pharmacokinetics and Transport, Dalian, Liaoning, China
| | - Xiaokui Huo
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, 9 West Section, Lvshun South Road, Lvshunkou District, Dalian, Liaoning, China
| | - Jinyong Peng
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, 9 West Section, Lvshun South Road, Lvshunkou District, Dalian, Liaoning, China; Provincial Key Laboratory for Pharmacokinetics and Transport, Dalian, Liaoning, China
| | - Kexin Liu
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, 9 West Section, Lvshun South Road, Lvshunkou District, Dalian, Liaoning, China; Provincial Key Laboratory for Pharmacokinetics and Transport, Dalian, Liaoning, China.
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249
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Si L, Xu L, Yin L, Qi Y, Han X, Xu Y, Zhao Y, Liu K, Peng J. Potent effects of dioscin against pancreatic cancer via miR-149-3P-mediated inhibition of the Akt1 signalling pathway. Br J Pharmacol 2017; 174:553-568. [PMID: 28095588 DOI: 10.1111/bph.13718] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2016] [Revised: 12/29/2016] [Accepted: 01/09/2017] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND AND PURPOSE The aim of the present study was to investigate the effects and possible underlying mechanisms of dioscin against pancreatic cancer in vitro and in vivo. EXPERIMENTAL APPROACH In vitro actions of dioscin on viability of ASPC-1 and PANC-1 cells, and in vivo effects to suppress the tumour growth of cell xenografts in nude mice were assessed. In addition, microRNA microarray analysis determined which microRNAs were affected by dioscin. The mechanisms underlying the actions of dioscin against pancreatic cancer were elucidated in terms of Akt1 and other proteins related to aopoptosis. KEY RESULTS Dioscin markedly induced apoptosis and significantly suppressed the tumour growth of ASPC-1 and PANC-1 cell xenografts, in nude mice. Total of 107 microRNAs with differential changes were found, in which miR-149-3P targeted with Akt1 was markedly up-regulated by dioscin. Further studies showed that dioscin significantly down-regulated Akt1 levels, and thus induced cell apoptosis by increasing the levels of Bax, Apaf-1, cleaved caspase-3/9, cleaved PARP, suppressing Bcl-2 levels, and causing cytochrome c release. The effects of an inhibitor of miR-149-3P and of siRNA of testicular Akt1 suggested that dioscin showed excellent activity against pancreatic cancer via miR- 149-3P-mediated inhibition of Akt1 signalling pathway. CONCLUSIONS AND IMPLICATIONS Collectively, these findings confirmed the potent effects of dioscin against pancreatic cancer and also provided novel insights into the mechanisms of the compound as a potential candidate for the treatment of pancreatic cancer.
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Affiliation(s)
- Lingling Si
- College of Pharmacy, Dalian Medical University, Dalian, China
| | - Lina Xu
- College of Pharmacy, Dalian Medical University, Dalian, China
| | - Lianhong Yin
- College of Pharmacy, Dalian Medical University, Dalian, China
| | - Yan Qi
- College of Pharmacy, Dalian Medical University, Dalian, China
| | - Xu Han
- College of Pharmacy, Dalian Medical University, Dalian, China
| | - Youwei Xu
- College of Pharmacy, Dalian Medical University, Dalian, China
| | - Yanyan Zhao
- College of Pharmacy, Dalian Medical University, Dalian, China
| | - Kexin Liu
- College of Pharmacy, Dalian Medical University, Dalian, China
| | - Jinyong Peng
- College of Pharmacy, Dalian Medical University, Dalian, China
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Miao P, Peng J, Chen C, Gai N, Yin F. [A novel mutation in KCNB1 gene in a child with neuropsychiatric comorbidities with both intellectual disability and epilepsy and review of literature]. Zhonghua Er Ke Za Zhi 2017; 55:115-119. [PMID: 28173649 DOI: 10.3760/cma.j.issn.0578-1310.2017.02.012] [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] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Objective: To explore the association between the phenotype and KCNB1 gene mutation. Method: Clinical information including physical features, laboratory and genetic data of one patient of mental retardation with refractory epilepsy from Department of Pediatrics, Xiangya Hospital in January 2016 was analyzed. This patient was discovered to have KCNB1 gene mutations through whole exome sequencing. Relevant information about KCNB1 gene mutation was searched and collected from Pubmed, CNKI, Human Gene Mutation Database(HGMD) and Online Mendelian Inheritance in Man(OMIM). Searching was done using "KCNB1" as a keyword. Result: A 3.5 years old boy who visited our hospital firstly at the age of 2 years because of development delay came for follow up as he developed seizures.The forms included tonic, clonic seizures and spasm. The condition became more severe 10 months later. Electroencephalogram(EEG) showed high frequency discharge (>85%). He had poor response to multiple anti-epileptic drugs, methylprednisolone and ketogenic diet. At the age of 3, he started to have mental regression. Whole exome-sequencing study (trios) identified a novel heterozygous mutation c. G1136T (p.G379V) in KCNB1, which is not available in the databases mentioned above. This is the first case report of KCNB1 gene mutation in China. Eight cases have been reported so far worldwide and all of them were diagnosed with refractory epilepsy. Those 8 reported cases of encephalopathy were all due to de novo mutation. Conclusion: The main clinical features of patients with KCNB1 mutations include severe to profound intellectual disability, intractable seizures, hypotonia and regression of cognition and motor activity which lead to poor prognosis.
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Affiliation(s)
- P Miao
- Department of Pediatrics, Xiangya Hospital of Central South University/Hunan Intellectual and Developmental Disabilities Research Center, Changsha 410008, China
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