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Tang N, Wang L, Zhou WZ, Zhou XJ. [The trend of birth weight of full-term newborns and its association with parental reproductive age in Chongqing municipality from 2010 to 2022]. Zhonghua Yu Fang Yi Xue Za Zhi 2023; 57:1794-1800. [PMID: 38008568 DOI: 10.3760/cma.j.cn112150-20230221-00137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 11/28/2023]
Abstract
To analyze the trend of abnormal birth weight of full-term newborns and its correlation with parental reproductive age in Chongqing municipality from 2010 to 2022. Based on the Chongqing Birth Certificate System, full-term newborns born from January 2010 to December 2022 were selected. Parental information and birth weight were abstracted from the system. The joinpoint regression model was used to assess the trend of incidence of low birth weight (LBW) and macrosomia in the offspring from 2010 to 2022. The logistic regression model was utilized to analyze the association between parental reproduction age and birth weight of newborns. The average birth weight of 3 155 542 newborns was (3 305.8±410.5) g. The joinpoint regression model showed a decreasing trend for the incidence of LBW from 2010 to 2016 (APC=-4.26%, P<0.05), and an increasing trend from 2020 to 2022 (APC=8.99%, P<0.05). The incidence of macrosomia exhibited a decreasing trend from 2015 to 2022 (APC=-3.37%, P<0.05). The logistic regression model showed that, compared to the group with parents aged 20-34 years, the risk of LBW increased in other age groups. The risk of macrosomia decreased when either parent was aged<20 years, and increased when both parents were aged≥20 years. In conclusion, from 2010 to 2022, the incidence of LBW in full-term offspring in Chongqing municipality decreased first and then increased, and the incidence of macrosomia increased first and then decreased. Both young and advanced parental age were associated with an increased risk of LBW in offspring, and advanced parental age was also associated with an increased risk of macrosomia in offspring. Attention should be paid to the effects of advanced maternal and paternal age on offspring birth weight. Further efforts to control childbearing at a young age were needed.
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Affiliation(s)
- N Tang
- Chongqing Health Center for Women and Children/Women and Children's Hospital of Chongqing Medical University, Chongqing 404100, China
| | - L Wang
- Chongqing Health Center for Women and Children/Women and Children's Hospital of Chongqing Medical University, Chongqing 404100, China
| | - W Z Zhou
- Chongqing Health Center for Women and Children/Women and Children's Hospital of Chongqing Medical University, Chongqing 404100, China
| | - X J Zhou
- Chongqing Health Center for Women and Children/Women and Children's Hospital of Chongqing Medical University, Chongqing 404100, China
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Wang X, Li M, Peng L, Tang N. Corrigendum to "SOD2 promotes the expression of ABCC2 through lncRNA CLCA3p and improves the detoxification capability of liver cells" [Toxicol. Lett. 327 (2020) 9-18]. Toxicol Lett 2023; 388:64-65. [PMID: 37880067 DOI: 10.1016/j.toxlet.2023.10.012] [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: 10/27/2023]
Affiliation(s)
- X Wang
- Fujian Institute of Hepatobiliary Surgery, Fujian Medical University Union Hospital, Fuzhou, China
| | - M Li
- Fujian Institute of Hepatobiliary Surgery, Fujian Medical University Union Hospital, Fuzhou, China
| | - L Peng
- Fujian Institute of Hepatobiliary Surgery, Fujian Medical University Union Hospital, Fuzhou, China
| | - N Tang
- Fujian Institute of Hepatobiliary Surgery, Fujian Medical University Union Hospital, Fuzhou, China.
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Wong RMY, Ng RWK, Chau WW, Liu WH, Chow SKH, Tso CY, Tang N, Cheung WH. Montreal cognitive assessment (MoCA) is highly correlated with 1-year mortality in hip fracture patients. Osteoporos Int 2022; 33:2185-2192. [PMID: 35763077 DOI: 10.1007/s00198-022-06426-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Accepted: 05/04/2022] [Indexed: 10/17/2022]
Abstract
UNLABELLED Prevalence of cognitive impairment in hip fractures was 86.5%. MoCA is an independent risk factor of mortality. MoCA score of < 15 is correlated with 11.71 times increased risk of mortality. Early attention and caution should be given to these patients for appropriate intervention to decrease mortality rates. INTRODUCTION Hip fractures rank amongst the top 10 causes of disability and current mortality of hip fractures is high. Objectives were to determine 1) prevalence of cognitive impairment, 2) whether Montreal Cognitive Assessment (MoCA) score was an independent risk factor associated with mortality, 3) MoCA cut-off that result in high risk of mortality. METHODS This was a cohort study between July 2019 to June 2020. Inclusion criteria were 1) hip fracture, 2) > = 65 years old, and 3) low-energy trauma. Patients undergo assessment for cognitive impairment with MoCA. Prevalence was assessed, MoCA cut-off point, and accuracy of statistical model was evaluated. Logistic regression modelling was used to assess association between mortality and MoCA. RESULTS There were 260 patients recruited. Two hundred twenty-five patients had MoCA score < 22 signifying cognitive impairment, and 202 patients had MoCA score of < 19. 46 hip fracture patients died at 1-year follow-up. 45 of these patients had MoCA score < 19, and 1 patient had a MoCA > 22. Results showed statistical significance and good model effect (at least 0.8) with MoCA cut-off points between < 15 and < 19 (p < 0.05). After controlling confounding factors, statistical significance still existed in MoCA cut-off point at < 15 (odds ratio (95% CI) = 11.71 (1.14, 120.71); p = 0.04). CONCLUSION Prevalence of cognitive impairment in hip fractures was 86.5%. MoCA is an independent risk factor of mortality in hip fracture patients. MoCA score of < 15 is correlated with 11.71 times increased risk of mortality at 1-year after a hip fracture. AUC with MoCA score < 15 was 0.948. Early attention and caution should be given to these patients for appropriate intervention to decrease mortality rates.
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Affiliation(s)
- R M Y Wong
- Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China.
| | - R W K Ng
- Department of Orthopaedics & Traumatology, Prince of Wales Hospital, Hospital Authority, Hong Kong SAR, China
| | - W W Chau
- Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - W H Liu
- Department of Orthopaedics & Traumatology, Prince of Wales Hospital, Hospital Authority, Hong Kong SAR, China
| | - S K H Chow
- Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - C Y Tso
- Department of Orthopaedics & Traumatology, Prince of Wales Hospital, Hospital Authority, Hong Kong SAR, China
| | - N Tang
- Department of Orthopaedics & Traumatology, Prince of Wales Hospital, Hospital Authority, Hong Kong SAR, China
| | - W-H Cheung
- Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China
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Lebreton A, Tang N, Kuo A, LaButti K, Andreopoulos W, Drula E, Miyauchi S, Barry K, Clum A, Lipzen A, Mousain D, Ng V, Wang R, Dai Y, Henrissat B, Grigoriev IV, Guerin-Laguette A, Yu F, Martin FM. Comparative genomics reveals a dynamic genome evolution in the ectomycorrhizal milk-cap (Lactarius) mushrooms. New Phytol 2022; 235:306-319. [PMID: 35383395 DOI: 10.1111/nph.18143] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Accepted: 03/16/2022] [Indexed: 06/14/2023]
Abstract
Ectomycorrhizal fungi play a key role in forests by establishing mutualistic symbioses with woody plants. Genome analyses have identified conserved symbiosis-related traits among ectomycorrhizal fungal species, but the molecular mechanisms underlying host specificity remain poorly known. We sequenced and compared the genomes of seven species of milk-cap fungi (Lactarius, Russulales) with contrasting host specificity. We also compared these genomes with those of symbiotic and saprotrophic Russulales species, aiming to identify genes involved in their ecology and host specificity. The size of Lactarius genomes is significantly larger than other Russulales species, owing to a massive accumulation of transposable elements and duplication of dispensable genes. As expected, their repertoire of genes coding for plant cell wall-degrading enzymes is restricted, but they retained a substantial set of genes involved in microbial cell wall degradation. Notably, Lactarius species showed a striking expansion of genes encoding proteases, such as secreted ectomycorrhiza-induced sedolisins. A high copy number of genes coding for small secreted LysM proteins and Lactarius-specific lectins were detected, which may be linked to host specificity. This study revealed a large diversity in the genome landscapes and gene repertoires within Russulaceae. The known host specificity of Lactarius symbionts may be related to mycorrhiza-induced species-specific genes, including secreted sedolisins.
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Affiliation(s)
- Annie Lebreton
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, Beijing Forestry University, Beijing, 100083, China
- Université de Lorraine, INRAE, Unité mixte de recherche Interactions Arbres/Microorganismes, Centre INRAE, Grand Est-Nancy, 54280, Champenoux, France
| | - Nianwu Tang
- Université de Lorraine, INRAE, Unité mixte de recherche Interactions Arbres/Microorganismes, Centre INRAE, Grand Est-Nancy, 54280, Champenoux, France
- Germplasm Bank of Wild Species, Yunnan Key Laboratory for Fungal Diversity and Green Development, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China
| | - Alan Kuo
- Lawrence Berkeley National Laboratory, US Department of Energy Joint Genome Institute, Berkeley, CA, 94720, USA
| | - Kurt LaButti
- Lawrence Berkeley National Laboratory, US Department of Energy Joint Genome Institute, Berkeley, CA, 94720, USA
| | - William Andreopoulos
- US Department of Energy Joint Genome Institute, University of California Berkeley, Berkeley, CA, 94720, USA
| | - Elodie Drula
- CNRS, Aix-Marseille Université, Marseille, 13288, France
- USC1408 AFMB, INRAE, Marseille, 13288, France
| | - Shingo Miyauchi
- Department of Plant Microbe Interactions, Max Planck Institute for Plant Breeding Research, Cologne, 50829, Germany
| | - Kerrie Barry
- Lawrence Berkeley National Laboratory, US Department of Energy Joint Genome Institute, Berkeley, CA, 94720, USA
| | - Alicia Clum
- Lawrence Berkeley National Laboratory, US Department of Energy Joint Genome Institute, Berkeley, CA, 94720, USA
| | - Anna Lipzen
- Lawrence Berkeley National Laboratory, US Department of Energy Joint Genome Institute, Berkeley, CA, 94720, USA
| | | | - Vivian Ng
- Lawrence Berkeley National Laboratory, US Department of Energy Joint Genome Institute, Berkeley, CA, 94720, USA
| | - Ran Wang
- Germplasm Bank of Wild Species, Yunnan Key Laboratory for Fungal Diversity and Green Development, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China
| | - Yucheng Dai
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, Beijing Forestry University, Beijing, 100083, China
| | - Bernard Henrissat
- Department of Biotechnology and Biomedicine (DTU Bioengineering), Technical University of Denmark, Kgs. Lyngby, 2800, Denmark
- Department of Biological Sciences, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - Igor V Grigoriev
- Lawrence Berkeley National Laboratory, US Department of Energy Joint Genome Institute, Berkeley, CA, 94720, USA
- Department of Plant and Microbial Biology, University of California Berkeley, Berkeley, CA, 94720, USA
| | - Alexis Guerin-Laguette
- Mycotree C/- Southern Woods Nursery, 1002 Robinsons Road, RD8, Christchurch, 7678, New Zealand
| | - Fuqiang Yu
- Germplasm Bank of Wild Species, Yunnan Key Laboratory for Fungal Diversity and Green Development, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China
| | - Francis M Martin
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, Beijing Forestry University, Beijing, 100083, China
- Université de Lorraine, INRAE, Unité mixte de recherche Interactions Arbres/Microorganismes, Centre INRAE, Grand Est-Nancy, 54280, Champenoux, France
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Lin X, Pan XM, Peng ZK, Wang K, Tang N. [Glucose-6 phosphatase catalytic subunit inhibits the proliferation of liver cancer cells by inducing cell cycle arrest]. Zhonghua Gan Zang Bing Za Zhi 2022; 30:213-219. [PMID: 35359074 DOI: 10.3760/cma.j.cn501113-20210204-00067] [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: 06/14/2023]
Abstract
Objective: To investigate the effects of glucose-6-phosphatase catalytic subunit (G6PC) recombinant adenovirus on proliferation and cell cycle regulation of liver cancer cells. Methods: Recombinant adenovirus AdG6PC was constructed. Huh7 cells and SK-Hep1 cells were set as Mock, AdGFP and AdG6PC group. Cell proliferation and clone formation assay were used to observe the proliferation of liver cancer cells. Transwell and scratch assay were used to observe the invasion and migration of liver cancer cells. Cell cycle flow cytometry assay was used to analyze the effect of G6PC overexpression on the proliferation cycle of liver cancer cells. Western blot was used to detect the effect of G6PC overexpression on the cell-cycle protein expression in liver cancer cells. Results: The recombinant adenovirus AdG6PC was successfully constructed. Huh7 and SK-Hep1 cells proliferation assay showed that the number of proliferating cells in the AdG6PC group was significantly lower than the other two groups (P < 0.05). Clone formation assay showed that the number of clones was significantly lower in AdG6PC than the other two groups (P < 0.05), suggesting that G6PC overexpression could significantly inhibit the proliferation of liver cancer cells. Transwell assay showed that the number of cell migration was significantly lower in AdG6PC than the other two groups (P < 0.05). Scratch repair rate was significantly lower in AdG6PC than the other two groups (P < 0.05), suggesting that G6PC overexpression can significantly inhibit the invasion and migration of liver cancer cells. Cell cycle flow cytometry showed that G6PC overexpression had significantly inhibited the Huh7 cells G(1)/S phase transition. Western blot result showed that G6PC overexpression had down-regulated the proliferation in cell-cycle related proteins expression. Conclusion: G6PC inhibits the proliferation, cell-cycle related expression, and migration of liver cancer cells by inhibiting the G(1)/S phase transition.
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Affiliation(s)
- X Lin
- The Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Chongqing 400016, China
| | - X M Pan
- The Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Chongqing 400016, China
| | - Z K Peng
- Chongqing Yucai Middle School, Chongqing 400050, China
| | - K Wang
- The Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Chongqing 400016, China
| | - N Tang
- The Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Chongqing 400016, China
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Tang N, Lebreton A, Xu W, Dai Y, Yu F, Martin FM. Transcriptome Profiling Reveals Differential Gene Expression of Secreted Proteases and Highly Specific Gene Repertoires Involved in Lactarius-Pinus Symbioses. Front Plant Sci 2021; 12:714393. [PMID: 34490014 PMCID: PMC8417538 DOI: 10.3389/fpls.2021.714393] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Accepted: 07/28/2021] [Indexed: 06/13/2023]
Abstract
Ectomycorrhizal fungi establish a mutualistic symbiosis in roots of most woody plants. The molecular underpinning of ectomycorrhizal development was only explored in a few lineages. Here, we characterized the symbiotic transcriptomes of several milkcap species (Lactarius, Russulales) in association with different pine hosts. A time-course study of changes in gene expression during the development of L. deliciosus-Pinus taeda symbiosis identified 6 to 594 differentially expressed fungal genes at various developmental stages. Up- or down-regulated genes are involved in signaling pathways, nutrient transport, cell wall modifications, and plant defenses. A high number of genes coding for secreted proteases, especially sedolisins, were induced during root colonization. In contrast, only a few genes encoding mycorrhiza-induced small secreted proteins were identified. This feature was confirmed in several other Lactarius species in association with various pines. Further comparison among all these species revealed that each Lactarius species encodes a highly specific symbiotic gene repertoire, a feature possibly related to their host-specificity. This study provides insights on the genetic basis of symbiosis in an ectomycorrhizal order, the Russulales, which was not investigated so far.
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Affiliation(s)
- Nianwu Tang
- Germplasm Bank of Wild Species, Yunnan Key Laboratory for Fungal Diversity and Green Development, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
| | - Annie Lebreton
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, Beijing Forestry University, Beijing, China
| | - Wenjun Xu
- Germplasm Bank of Wild Species, Yunnan Key Laboratory for Fungal Diversity and Green Development, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
| | - Yucheng Dai
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, Beijing Forestry University, Beijing, China
| | - Fuqiang Yu
- Germplasm Bank of Wild Species, Yunnan Key Laboratory for Fungal Diversity and Green Development, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
| | - Francis M. Martin
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, Beijing Forestry University, Beijing, China
- Centre INRAE-GrandEst Nancy, INRAE, UMR Interactions Arbres/Microorganismes, Université de Lorraine, Champenoux, France
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Zhou X, Li J, Tang N, Xie H, Fan X, Chen H, Tang M, Xie X. Genome-Wide Analysis of Nutrient Signaling Pathways Conserved in Arbuscular Mycorrhizal Fungi. Microorganisms 2021; 9:1557. [PMID: 34442636 PMCID: PMC8401276 DOI: 10.3390/microorganisms9081557] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 07/13/2021] [Accepted: 07/16/2021] [Indexed: 01/03/2023] Open
Abstract
Arbuscular mycorrhizal (AM) fungi form a mutualistic symbiosis with a majority of terrestrial vascular plants. To achieve an efficient nutrient trade with their hosts, AM fungi sense external and internal nutrients, and integrate different hierarchic regulations to optimize nutrient acquisition and homeostasis during mycorrhization. However, the underlying molecular networks in AM fungi orchestrating the nutrient sensing and signaling remain elusive. Based on homology search, we here found that at least 72 gene components involved in four nutrient sensing and signaling pathways, including cAMP-dependent protein kinase A (cAMP-PKA), sucrose non-fermenting 1 (SNF1) protein kinase, target of rapamycin kinase (TOR) and phosphate (PHO) signaling cascades, are well conserved in AM fungi. Based on the knowledge known in model yeast and filamentous fungi, we outlined the possible gene networks functioning in AM fungi. These pathways may regulate the expression of downstream genes involved in nutrient transport, lipid metabolism, trehalase activity, stress resistance and autophagy. The RNA-seq analysis and qRT-PCR results of some core genes further indicate that these pathways may play important roles in spore germination, appressorium formation, arbuscule longevity and sporulation of AM fungi. We hope to inspire further studies on the roles of these candidate genes involved in these nutrient sensing and signaling pathways in AM fungi and AM symbiosis.
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Affiliation(s)
- Xiaoqin Zhou
- State Key Laboratory of Conservation and Utilization of Subtropical Agro-Bioresources, Lingnan Guangdong Laboratory of Modern Agriculture, Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China; (X.Z.); (H.X.); (X.F.); (H.C.)
| | - Jiangyong Li
- Institute for Environmental and Climate Research, Jinan University, Guangzhou 511443, China;
| | - Nianwu Tang
- UMR Interactions Arbres/Microorganismes, Centre INRA-Grand Est-Nancy, 54280 Champenoux, France;
| | - Hongyun Xie
- State Key Laboratory of Conservation and Utilization of Subtropical Agro-Bioresources, Lingnan Guangdong Laboratory of Modern Agriculture, Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China; (X.Z.); (H.X.); (X.F.); (H.C.)
| | - Xiaoning Fan
- State Key Laboratory of Conservation and Utilization of Subtropical Agro-Bioresources, Lingnan Guangdong Laboratory of Modern Agriculture, Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China; (X.Z.); (H.X.); (X.F.); (H.C.)
| | - Hui Chen
- State Key Laboratory of Conservation and Utilization of Subtropical Agro-Bioresources, Lingnan Guangdong Laboratory of Modern Agriculture, Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China; (X.Z.); (H.X.); (X.F.); (H.C.)
| | - Ming Tang
- State Key Laboratory of Conservation and Utilization of Subtropical Agro-Bioresources, Lingnan Guangdong Laboratory of Modern Agriculture, Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China; (X.Z.); (H.X.); (X.F.); (H.C.)
| | - Xianan Xie
- State Key Laboratory of Conservation and Utilization of Subtropical Agro-Bioresources, Lingnan Guangdong Laboratory of Modern Agriculture, Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China; (X.Z.); (H.X.); (X.F.); (H.C.)
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Brijmohan A, Tang N, Dalgarno N, Thakrar A. Women’s cardiovascular health medical education initiative. Can J Cardiol 2021. [DOI: 10.1016/j.cjca.2020.02.064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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Chen W, Wu L, Jiang LF, Hu YQ, Zhai Y, Li JH, Wu Y, Tang N. Yifei Xuanfei Jiangzhuo Chinese bioformulation improves cognitive function in a murine model of vascular dementia - the implication of PI3K/AKT and Erk signalling pathway. J BIOL REG HOMEOS AG 2020; 34:2177-2183. [PMID: 33185080 DOI: 10.23812/20-310-l] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- W Chen
- Department of Neurology, The First Affiliated Hospital of Guangxi University of Chinese Medicine, Nanning, Guangxi, China.,Guangxi Key Laboratory of Chinese Medicine Foundation Research, Guangxi University of Chinese Medicine, Nanning, Guangxi, China
| | - L Wu
- Guangxi Key Laboratory of Chinese Medicine Foundation Research, Guangxi University of Chinese Medicine, Nanning, Guangxi, China.,Scientific Laboratorial Centre, Guangxi University of Chinese Medicine, Nanning, Guangxi, China
| | - L F Jiang
- Graduate College, Guangxi University of Chinese Medicine, Nanning, Guangxi, China
| | - Y Q Hu
- Department of Neurology, The First Affiliated Hospital of Guangxi University of Chinese Medicine, Nanning, Guangxi, China.,Guangxi Key Laboratory of Chinese Medicine Foundation Research, Guangxi University of Chinese Medicine, Nanning, Guangxi, China
| | - Y Zhai
- Guangxi Key Laboratory of Chinese Medicine Foundation Research, Guangxi University of Chinese Medicine, Nanning, Guangxi, China.,Guangxi International Zhuang Medicine Hospital, Nanning, Guangxi, China
| | - J H Li
- Department of Neurology, The First Affiliated Hospital of Guangxi University of Chinese Medicine, Nanning, Guangxi, China.,Guangxi Key Laboratory of Chinese Medicine Foundation Research, Guangxi University of Chinese Medicine, Nanning, Guangxi, China
| | - Y Wu
- Graduate College, Guangxi University of Chinese Medicine, Nanning, Guangxi, China
| | - N Tang
- Department of Neurology, The First Affiliated Hospital of Guangxi University of Chinese Medicine, Nanning, Guangxi, China.,Guangxi Key Laboratory of Chinese Medicine Foundation Research, Guangxi University of Chinese Medicine, Nanning, Guangxi, China
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Liu HP, Lv D, Wang JY, Zhang Y, Chang JF, Liu ZT, Tang N. Long noncoding RNA PCAT-1 promoted ovarian cancer cell proliferation and invasion by suppressing KLF6. Eur Rev Med Pharmacol Sci 2020; 23:4650-4655. [PMID: 31210290 DOI: 10.26355/eurrev_201906_18044] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Recently, the role of long noncoding RNAs (lncRNAs) in tumor progression has caught attention in numerous researchers. In our investigation, lncRNA PCAT-1 was studied to identify how it functioned in the progression of ovarian cancer. PATIENTS AND METHODS LncRNA PCAT-1 expression was detected by quantitative Real-time polymerase chain reaction (qRT-PCR) in both ovarian cancer cells and tissue samples. Furthermore, to identify the function of PCAT-1 in ovarian cancer, cell proliferation, transwell assay and Matrigel assay were conducted. In addition, by performing qRT-PCR and Western blot assay, the underlying mechanism was explored. RESULTS PCAT-1 expression was remarkably higher in ovarian cancer samples when compared with that in corresponding ones. Moreover, cell proliferation, migration and invasion were inhibited after PCAT-1 was knocked down in ovarian cancer cells. Moreover, the mRNA and protein expression of KLF6 (Krüppel-like factor 6) was upregulated after PCAT-1 was knocked down. Furthermore, the KLF6 expression level was negatively related to the PCAT-1 expression level in ovarian cancer samples. CONCLUSIONS We showed that PCAT-1 promotes the progression of ovarian cancer through enhancing cell metastasis and proliferation via suppressing KLF6, which might be a novel therapeutic strategy in ovarian cancer.
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Affiliation(s)
- H-P Liu
- Reproductive Medicine Center, The 960th Hospital of the PLA Joint Logistics Support Force, China.
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11
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Liu HP, Lv D, Wang JY, Zhang Y, Chang JF, Liu ZT, Tang N. Long noncoding RNA PCAT-1 promoted ovarian cancer cell proliferation and invasion by suppressing KLF6. Eur Rev Med Pharmacol Sci 2020; 24:7566. [PMID: 32744671 DOI: 10.26355/eurrev_202007_22228] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Since this article has been suspected of research misconduct and the corresponding authors did not respond to our request to prove originality of data and figures, "Long noncoding RNA PCAT-1 promoted ovarian cancer cell proliferation and invasion by suppressing KLF6, by H.-P. Liu, D. Lv, J.-Y. Wang, Y. Zhang, J.-F. Chang, Z.-T. Liu, N. Tang, published in Eur Rev Med Pharmacol Sci 2019; 23 (11): 4650-4655-DOI: 10.26355/eurrev_201906_18044-PMID: 31210290" has been withdrawn. The Publisher apologizes for any inconvenience this may cause. https://www.europeanreview.org/article/18044.
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Affiliation(s)
- H-P Liu
- Reproductive Medicine Center, The 960th Hospital of the PLA Joint Logistics Support Force, China
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Hu YQ, Chen W, Yan MH, Lai JJ, Tang N, Wu L. Ischemic preconditioning protects brain from ischemia/reperfusion injury by attenuating endoplasmic reticulum stress-induced apoptosis through PERK pathway. Eur Rev Med Pharmacol Sci 2019; 21:5736-5744. [PMID: 29272010 DOI: 10.26355/eurrev_201712_14020] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE The purpose of this study was to explore the effects of cerebral ischemic preconditioning which can decrease brain ischemia/reperfusion (I/R) injury by inhibiting endoplasmic reticulum (ER) stress-induced apoptosis. MATERIALS AND METHODS The focal cerebral ischemia rat was selected as the experimental model. Terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling (TUNEL) positive cells in ischemic penumbra were assessed after cerebral reperfusion. We assessed terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling (TUNEL) positive cells and measured the expressions of phosphorylation PERK (p-PERK), glucose-regulated protein 78 (GRP78), activating transcription factor-4 (ATF4) and caspase-12 in ischemic penumbra after cerebral reperfusion. RESULTS We showed that the infarct sizes can be reduced due to the preconditioning under the influence of brain ischemia after reperfusion. The effect of preconditioning on the expression of ER stress proteins suggested the expressions of the 4 proteins p-PERK, ATF4, caspase-12 and GRP78 in the penumbra cortex by immunohistochemistry and Western blot increased after cerebral ischemia. Significant reduction of the number of TUNEL-positive cells was in the penumbra cortex of the preconditioning group. CONCLUSIONS We found that cerebral ischemic preconditioning can protect the brain from I/R injury by inhibiting ER stress-induced apoptosis; the pathway of PERK is involved.
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Affiliation(s)
- Y-Q Hu
- Department of Neurology, The First Affiliated Hospital of Guangxi University of Chinese Medicine, Nanning, Guangxi, China.
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13
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Chow SKH, Chim YN, Wang J, Zhang N, Wong RMY, Tang N, Leung KS, Cheung WH. Vibration treatment modulates macrophage polarisation and enhances early inflammatory response in oestrogen-deficient osteoporotic-fracture healing. Eur Cell Mater 2019; 38:228-245. [PMID: 31697398 DOI: 10.22203/ecm.v038a16] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Fracture healing is a well-orchestrated and coordinated process and begins with the inflammatory stage involving the infiltration of immune cells and the release of cytokines, including tumour necrosis factor-alpha (TNF-α), interleukin-6 (IL-6) and interleukin-10 (IL-10). Low-magnitude high-frequency vibration (LMHFV) stimulation is effective in promoting fracture healing. The study hypothesis was that the innate immune response was impaired in osteoporotic fracture and LMHFV could positively modulate it. 9-month-old ovariectomy (OVX)-induced osteoporotic rats were randomised into sham (SHAM), OVX control (OVX), OVX-vibration (OVX-VT) or OVX vibration plus administration of COX-2 specific non-steroid anti-inflammatory drugs (OVX-VT-NSAID). LMHFV (35 Hz, 0.3 g) was given 20 min/d and 5 d/week to the treatment groups. Healing and innate immune response were evaluated by weekly radiographs, endpoint micro-computed tomography (µCT), enzyme-linked immunosorbent assay (ELISA) and histomorphometry at weeks 1, 2, 4 and 8 post-treatment. Results showed that OVX slightly elevated systemic inflammation but impaired the innate immune response locally at the fracture site, with significantly lower expressions of TNF-α and IL-6 but higher IL-10 expression during the early stage of healing. LMHFV was effective in accelerating the delayed fracture healing in OVX bones by partly restoring the impaired innate immune response at the fracture site, accompanied by promoted progression of macrophage polarisation from M1 (pro-inflammatory) to M2 (anti-inflammatory) phenotype. In conclusion, vibration treatment could positively modulate the impaired innate immune response and promote macrophage polarisation in osteoporotic-fracture healing.
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Affiliation(s)
- S K-H Chow
- Department of Orthopaedics and Traumatology, 5/F, Clinical Sciences Building, the Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR, PR
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14
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Pan XM, Zhang GJ, Chen XM, Liang L, Tang N, Wang K. [Fructose-1, 6-bisphosphatase inhibits autophagy and proliferation in liver cancer cells]. Zhonghua Gan Zang Bing Za Zhi 2019; 27:687-692. [PMID: 31594093 DOI: 10.3760/cma.j.issn.1007-3418.2019.09.006] [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: 11/05/2022]
Abstract
Objective: To construct the recombinant adenoviral containing fructose 1, 6-biphosphatase 1 (FBP1), and to investigate whether FBP1 has effect on autophagy and proliferation in liver cancer cells (HepG2). Methods: FBP1 cDNA sequence was amplified by PCR and cloned in adenovirus vector pAdTrack-TO4, and then recombinant adenovirus plasmid pAdTrack-FBP1 was constructed. The recombinant adenovirus plasmid was transfected into HEK293 cells by Lipofectamine 3000. High-titer of recombinant adenovirus AdFBP1 was obtained by packaging and amplification. HepG2 cells were infected with recombinant adenovirus AdFBP1, and the Mock and AdGFP group were set at the same time. Western blot and confocal laser scanning microscopy were used to observe the effect of FBP1 on the level of autophagy in hepatocellular carcinoma cells, and the effect of FBP1on the proliferation was observed by MTS and colony formation assay. A t-test and one-way ANOVA were used to compare the mean between group. Results: A high-titer recombinant adenovirus FBP1 was successfully constructed. Western blot and confocal laser scanning microscopy showed that the level of autophagy in AdFBP1 group was significantly lower than that in AdGFP group. Western blot results showed that LC3-II protein expression level in AdGFP was 1.10 ± 0.10 and 0.30 ± 0.01 in AdFBP1 group, F = 90.36, P < 0.01. Confocal laser scanning microscopy analysis showed that the average number of autophages in AdGFP was 28.33 ± 1.53 and 12.33 ± 1.53 in AdFBP1group, F = 97.40, P < 0.01. In addition, the results of colony formation assay and MTS assay showed that the proliferation of liver cancer cells in the AdFBP1 group was significantly inhibited compared with the AdGFP group. The results of colony formation showed that the cell clones in the AdGFP group was 65.66 ± 2.57 and 34.00 ± 2.00 in AdFBP1 group, F = 141.50, P < 0.01. MTS results showed that the absorbance of AdGFP group at 96h was 39.13 ± 2.21 and 30.61 ± 3.33 in AdFBP1 group, F = 7.80, P < 0.05. Conclusion: FBP1 inhibited the autophagy and proliferation in liver cancer cells (HepG2).
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Affiliation(s)
- X M Pan
- The Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Chongqing Medical University, Chongqing 400016, China
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Morin E, Miyauchi S, San Clemente H, Chen ECH, Pelin A, de la Providencia I, Ndikumana S, Beaudet D, Hainaut M, Drula E, Kuo A, Tang N, Roy S, Viala J, Henrissat B, Grigoriev IV, Corradi N, Roux C, Martin FM. Comparative genomics of Rhizophagus irregularis, R. cerebriforme, R. diaphanus and Gigaspora rosea highlights specific genetic features in Glomeromycotina. New Phytol 2019; 222:1584-1598. [PMID: 30636349 DOI: 10.1111/nph.15687] [Citation(s) in RCA: 76] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Accepted: 12/28/2018] [Indexed: 05/21/2023]
Abstract
Glomeromycotina is a lineage of early diverging fungi that establish arbuscular mycorrhizal (AM) symbiosis with land plants. Despite their major ecological role, the genetic basis of their obligate mutualism remains largely unknown, hindering our understanding of their evolution and biology. We compared the genomes of Glomerales (Rhizophagus irregularis, Rhizophagus diaphanus, Rhizophagus cerebriforme) and Diversisporales (Gigaspora rosea) species, together with those of saprotrophic Mucoromycota, to identify gene families and processes associated with these lineages and to understand the molecular underpinning of their symbiotic lifestyle. Genomic features in Glomeromycotina appear to be very similar with a very high content in transposons and protein-coding genes, extensive duplications of protein kinase genes, and loss of genes coding for lignocellulose degradation, thiamin biosynthesis and cytosolic fatty acid synthase. Most symbiosis-related genes in R. irregularis and G. rosea are specific to Glomeromycotina. We also confirmed that the present species have a homokaryotic genome organisation. The high interspecific diversity of Glomeromycotina gene repertoires, affecting all known protein domains, as well as symbiosis-related orphan genes, may explain the known adaptation of Glomeromycotina to a wide range of environmental settings. Our findings contribute to an increasingly detailed portrait of genomic features defining the biology of AM fungi.
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Affiliation(s)
- Emmanuelle Morin
- Institut National de la Recherche Agronomique, Université de Lorraine, Unité Mixte de Recherche Interactions Arbres/Microorganismes, Centre INRA-Grand Est-Nancy, 54280, Champenoux, France
| | - Shingo Miyauchi
- Institut National de la Recherche Agronomique, Université de Lorraine, Unité Mixte de Recherche Interactions Arbres/Microorganismes, Centre INRA-Grand Est-Nancy, 54280, Champenoux, France
| | - Hélène San Clemente
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, UPS, CNRS, 24 Chemin de Borde Rouge-Auzeville, 31320, Castanet-Tolosan, France
| | - Eric C H Chen
- Department of Biology, University of Ottawa, Ottawa, ON, K1N 6N5, Canada
| | - Adrian Pelin
- Department of Biology, University of Ottawa, Ottawa, ON, K1N 6N5, Canada
| | | | - Steve Ndikumana
- Department of Biology, University of Ottawa, Ottawa, ON, K1N 6N5, Canada
| | - Denis Beaudet
- Department of Biology, University of Ottawa, Ottawa, ON, K1N 6N5, Canada
| | - Mathieu Hainaut
- CNRS, UMR 7257, Aix-Marseille Université, 13007, Marseille, France
| | - Elodie Drula
- CNRS, UMR 7257, Aix-Marseille Université, 13007, Marseille, France
| | - Alan Kuo
- US Department of Energy Joint Genome Institute (JGI), Walnut Creek, CA, 94598, USA
| | - Nianwu Tang
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, UPS, CNRS, 24 Chemin de Borde Rouge-Auzeville, 31320, Castanet-Tolosan, France
| | - Sébastien Roy
- Agronutrition- rue Pierre et Marie Curie, Immeuble BIOSTEP, 31670, Labège, France
| | - Julie Viala
- Agronutrition- rue Pierre et Marie Curie, Immeuble BIOSTEP, 31670, Labège, France
| | - Bernard Henrissat
- CNRS, UMR 7257, Aix-Marseille Université, 13007, Marseille, France
- Architecture et Fonction des Macromolécules Biologiques, Aix-Marseille Université, 13007, Marseille, France
| | - Igor V Grigoriev
- US Department of Energy Joint Genome Institute (JGI), Walnut Creek, CA, 94598, USA
| | - Nicolas Corradi
- Department of Biology, University of Ottawa, Ottawa, ON, K1N 6N5, Canada
| | - Christophe Roux
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, UPS, CNRS, 24 Chemin de Borde Rouge-Auzeville, 31320, Castanet-Tolosan, France
| | - Francis M Martin
- Institut National de la Recherche Agronomique, Université de Lorraine, Unité Mixte de Recherche Interactions Arbres/Microorganismes, Centre INRA-Grand Est-Nancy, 54280, Champenoux, France
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, Beijing Forest University, 100080, Beijing, China
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Tang N, Bueno M, Meylan S, Incerti S, Tran HN, Vaurijoux A, Gruel G, Villagrasa C. Influence of chromatin compaction on simulated early radiation-induced DNA damage using Geant4-DNA. Med Phys 2019; 46:1501-1511. [DOI: 10.1002/mp.13405] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Revised: 01/07/2019] [Accepted: 01/21/2019] [Indexed: 11/11/2022] Open
Affiliation(s)
- N. Tang
- IRSN; Institut de Radioprotection et de Sûreté Nucléaire; BP17 92262 Fontenay aux Roses France
| | - M. Bueno
- IRSN; Institut de Radioprotection et de Sûreté Nucléaire; BP17 92262 Fontenay aux Roses France
| | - S. Meylan
- SymAlgo Technologies; 75 rue Léon Frot 75011 Paris France
| | - S. Incerti
- Université de Bordeaux CNRS/IN2P3 Centre d'Etudes Nucléaires de Bordeaux; Gradignan CENBG; chemin du solarium, BP120 33175 Gradignan France
| | - H. N. Tran
- IRSN; Institut de Radioprotection et de Sûreté Nucléaire; BP17 92262 Fontenay aux Roses France
| | - A. Vaurijoux
- IRSN; Institut de Radioprotection et de Sûreté Nucléaire; BP17 92262 Fontenay aux Roses France
| | - G. Gruel
- IRSN; Institut de Radioprotection et de Sûreté Nucléaire; BP17 92262 Fontenay aux Roses France
| | - C. Villagrasa
- IRSN; Institut de Radioprotection et de Sûreté Nucléaire; BP17 92262 Fontenay aux Roses France
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17
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Qi R, Lei CG, Bai YX, Tang N, Xing X. The AT1/Raf/ERK1/2 signaling pathway is involved in Angiotensin II-enhanced proliferation of hepatic carcinoma cells. Neoplasma 2019; 66:83-91. [DOI: 10.4149/neo_2018_171213n816] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Accepted: 07/04/2018] [Indexed: 11/08/2022]
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18
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Tang N, Guan C, Ang K, Phua K, Chew E. Motor imagery-assisted brain-computer interface for gait retraining in neurorehabilitation in chronic stroke. Ann Phys Rehabil Med 2018. [DOI: 10.1016/j.rehab.2018.05.431] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Incerti S, Kyriakou I, Bernal MA, Bordage MC, Francis Z, Guatelli S, Ivanchenko V, Karamitros M, Lampe N, Lee SB, Meylan S, Min CH, Shin WG, Nieminen P, Sakata D, Tang N, Villagrasa C, Tran HN, Brown JMC. Geant4-DNA example applications for track structure simulations in liquid water: A report from the Geant4-DNA Project. Med Phys 2018; 45. [PMID: 29901835 DOI: 10.1002/mp.13048] [Citation(s) in RCA: 198] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Revised: 05/03/2018] [Accepted: 06/04/2018] [Indexed: 01/11/2023] Open
Abstract
This Special Report presents a description of Geant4-DNA user applications dedicated to the simulation of track structures (TS) in liquid water and associated physical quantities (e.g., range, stopping power, mean free path…). These example applications are included in the Geant4 Monte Carlo toolkit and are available in open access. Each application is described and comparisons to recent international recommendations are shown (e.g., ICRU, MIRD), when available. The influence of physics models available in Geant4-DNA for the simulation of electron interactions in liquid water is discussed. Thanks to these applications, the authors show that the most recent sets of physics models available in Geant4-DNA (the so-called "option4" and "option 6" sets) enable more accurate simulation of stopping powers, dose point kernels, and W-values in liquid water, than the default set of models ("option 2") initially provided in Geant4-DNA. They also serve as reference applications for Geant4-DNA users interested in TS simulations.
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Affiliation(s)
- S Incerti
- University of Bordeaux, CENBG, UMR 5797, F-33170, Gradignan, France
- CNRS, IN2P3, CENBG, UMR 5797, F-33170, Gradignan, France
| | - I Kyriakou
- Medical Physics Laboratory, University of Ioannina Medical School, 45110, Ioannina, Greece
| | - M A Bernal
- Instituto de Física Gleb Wataghin, Universidade Estadual de Campinas, Campinas, SP, Brazil
| | - M C Bordage
- Université Toulouse III-Paul Sabatier, UMR1037 CRCT, Toulouse, France
- Inserm, UMR1037 CRCT, Toulouse, France
| | - Z Francis
- Department of Physics, Faculty of Sciences, Université Saint Joseph, Beirut, Lebanon
| | - S Guatelli
- Centre for Medical Radiation Physics, University of Wollongong, Wollongong, Australia
- Illawarra Health & Medical Research Institute, University of Wollongong, Wollongong, Australia
| | - V Ivanchenko
- Geant4 Associates International Ltd., Hebden Bridge, UK
- Tomsk State University, Tomsk, Russia
| | - M Karamitros
- Radiation Laboratory, University of Notre Dame, Notre Dame, IN 46556, USA
| | - N Lampe
- Vicinity Centres, Data Science & Insights, Office Tower One, 1341 Dandenong Rd, Chadstone, Victoria, 3148, Australia
| | - S B Lee
- Proton Therapy Center, National Cancer Center, 323, Ilsan-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do, Korea
| | - S Meylan
- SymAlgo Technologies, 75 rue Léon Frot, 75011, Paris, France
| | - C H Min
- Department of Radiation Convergence Engineering, Yonsei University, Wonju, Korea
| | - W G Shin
- Department of Radiation Convergence Engineering, Yonsei University, Wonju, Korea
| | | | - D Sakata
- University of Bordeaux, CENBG, UMR 5797, F-33170, Gradignan, France
- CNRS, IN2P3, CENBG, UMR 5797, F-33170, Gradignan, France
- Centre for Medical Radiation Physics, University of Wollongong, Wollongong, Australia
| | - N Tang
- IRSN, Institut de Radioprotection et de Sureté Nucléaire, 92262, Fontenay-aux-Roses, France
| | - C Villagrasa
- IRSN, Institut de Radioprotection et de Sureté Nucléaire, 92262, Fontenay-aux-Roses, France
| | - H N Tran
- Division of Nuclear Physics, Advanced Institute of Materials Science, Ton Duc Thang University, Ho Chi Minh City, Vietnam
- Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, Vietnam
| | - J M C Brown
- Department of Radiation Science and Technology, Delft University of Technology, Delft, The Netherlands
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Li M, Zhao J, Tang N, Sun H, Huang J. Horizontal Gene Transfer From Bacteria and Plants to the Arbuscular Mycorrhizal Fungus Rhizophagus irregularis. Front Plant Sci 2018; 9:701. [PMID: 29887874 PMCID: PMC5982333 DOI: 10.3389/fpls.2018.00701] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Accepted: 05/07/2018] [Indexed: 05/28/2023]
Abstract
Arbuscular mycorrhizal fungi (AMF) belong to Glomeromycotina, and are mutualistic symbionts of many land plants. Associated bacteria accompany AMF during their lifecycle to establish a robust tripartite association consisting of fungi, plants and bacteria. Physical association among this trinity provides possibilities for the exchange of genetic materials. However, very few horizontal gene transfer (HGT) from bacteria or plants to AMF has been reported yet. In this study, we complement existing algorithms by developing a new pipeline, Blast2hgt, to efficiently screen for putative horizontally derived genes from a whole genome. Genome analyses of the glomeromycete Rhizophagus irregularis identified 19 fungal genes that had been transferred between fungi and bacteria/plants, of which seven were obtained from bacteria. Another 18 R. irregularis genes were found to be recently acquired from either plants or bacteria. In the R. irregularis genome, gene duplication has contributed to the expansion of three foreign genes. Importantly, more than half of the R. irregularis foreign genes were expressed in various transcriptomic experiments, suggesting that these genes are functional in R. irregularis. Functional annotation and available evidence showed that these acquired genes may participate in diverse but fundamental biological processes such as regulation of gene expression, mitosis and signal transduction. Our study suggests that horizontal gene influx through endosymbiosis is a source of new functions for R. irregularis, and HGT might have played a role in the evolution and symbiotic adaptation of this arbuscular mycorrhizal fungus.
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Affiliation(s)
- Meng Li
- Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Jinjie Zhao
- Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
| | - Nianwu Tang
- Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
- Department of Economic Plants and Biotechnology, Yunnan Key Laboratory for Wild Plant Resources, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
| | - Hang Sun
- Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
| | - Jinling Huang
- Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
- Institute of Plant Stress Biology, State Key Laboratory of Cotton Biology, Henan University, Kaifeng, China
- Department of Biology, East Carolina University, Greenville, NC, United States
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Kamel L, Tang N, Malbreil M, San Clemente H, Le Marquer M, Roux C, Frei dit Frey N. Corrigendum: The Comparison of Expressed Candidate Secreted Proteins from Two Arbuscular Mycorrhizal Fungi Unravels Common and Specific Molecular Tools to Invade Different Host Plants. Front Plant Sci 2017; 8:2065. [PMID: 29250100 PMCID: PMC5727630 DOI: 10.3389/fpls.2017.02065] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Accepted: 11/17/2017] [Indexed: 06/07/2023]
Abstract
[This corrects the article on p. 124 in vol. 8, PMID: 28223991.].
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Affiliation(s)
- Laurent Kamel
- Laboratoire de Recherche en Sciences Végétales, Université Paul Sabatier - Université de Toulouse, Centre National de la Recherche Scientifique, Castanet-Tolosan, France
- Agronutrition, Laboratoire de Biotechnologies, Labege, France
| | - Nianwu Tang
- Laboratoire de Recherche en Sciences Végétales, Université Paul Sabatier - Université de Toulouse, Centre National de la Recherche Scientifique, Castanet-Tolosan, France
| | - Mathilde Malbreil
- Laboratoire de Recherche en Sciences Végétales, Université Paul Sabatier - Université de Toulouse, Centre National de la Recherche Scientifique, Castanet-Tolosan, France
| | - Hélène San Clemente
- Laboratoire de Recherche en Sciences Végétales, Université Paul Sabatier - Université de Toulouse, Centre National de la Recherche Scientifique, Castanet-Tolosan, France
| | - Morgane Le Marquer
- Laboratoire de Recherche en Sciences Végétales, Université Paul Sabatier - Université de Toulouse, Centre National de la Recherche Scientifique, Castanet-Tolosan, France
| | - Christophe Roux
- Laboratoire de Recherche en Sciences Végétales, Université Paul Sabatier - Université de Toulouse, Centre National de la Recherche Scientifique, Castanet-Tolosan, France
| | - Nicolas Frei dit Frey
- Laboratoire de Recherche en Sciences Végétales, Université Paul Sabatier - Université de Toulouse, Centre National de la Recherche Scientifique, Castanet-Tolosan, France
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Wang LM, Zhong H, Tang N, Pang LJ, Zhang CJ, He F. [Interaction between TRPC1 and STIM1 in calcium sensing receptor mediated calcium influx and nitric oxide production in human umbilical vein endothelial cells]. Zhonghua Xin Xue Guan Bing Za Zhi 2017; 45:978-984. [PMID: 29166726 DOI: 10.3760/cma.j.issn.0253-3758.2017.11.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the interaction of Ca(2+) protein TRPC1 and STIM1 in extracellular Ca(2+) -sensing receptor (CaR)-induced extracellular Ca(2+) influx and the production of nitric oxide (NO). Methods: Human umbilical vein endothelial cells (HUVECs) were cultured and incubated with CaR agonist spermine (activating store-operates cation channels (SOC) and receptor-operated channels (ROC)), CaR negative allosteric modulator Calhex231 (blocking SOC, activating ROC) and ROC analogue TPA (activating ROC, blocking SOC), protein kinase C (PKC) inhibitor Ro31-8220, PKCs and PKCμ inhibitor Go6967(activate SOC, blocking ROC), respectively. The interaction of TRPC1 and STIM1 was determined using the immunofluorescence methods. The interaction between TRPC1 and STIM1 were examined by Co-immuno precipitation. The HUVECs were divided into: TRPC1 and STIM1 short hairpin RNA group (shTRPC1+ shSTIM1 group), vehicle-TRPC1+ vehicle-STIM1 group and control group. The cells were incubated with four different treatments under the action of above mentioned interventions, intracellular Ca(2+) concentration ([Ca(2+) ](i)) was detected using the fluorescence Ca(2+) indicator Fura-2/AM, the production of NO was determined by DAF-FM. Results: (1) The expression of TRPC1 and STIM1 proteins levels in HUVECs: Under the confocal microscope, TRPC1 and STIM1 protein expression showed masculine gender, both located in cytoplasm in the normal control group. Post incubation with Calhex231+ TPA, Ro31-8220 and Go6967, TRPC1 and STIM1 positioned in cytoplasm was significantly reduced, and the combined TRPC1 and STIM1 was also significantly reduced. (2) The interaction of TRPC1 and STIM1 in HUVECs: The relative ratios of Calhex231+ TPA+ Spermine+ Ca(2+) group, Ro31-8220+ Spermine+ Ca(2+) group and Go6976+ Spermine+ Ca(2+) group STIM1/TRPC1 and TRPC1/STIM1 were as follows: (25.98±2.17)% and (44.10±4.01)%, (20.85±1.01)% and (46.31±3.47)%, (23.88±2.05)% and (39.65±2.91)%, which were significantly lower than those in the control group (100.00±4.66)% and (100.00±6.40)% and in the Spermine+ Ca(2+) group (106.04±2.45)% and (107.78±2.66)% (all P<0.05). (3) The influence of joint TRPC1 and STIM1 transfection to four different drugs treated HUVECs on [Ca(2+) ](i) and NO generation: The changes of two excitation fluorescence intensity ratio and NO net fluorescence intensity values were consistent, [Ca(2+) ](i) and NO net fluorescence intensity values were significantly lower in the experimental group than the control group and the vehicle group (all P<0.05), while which were similar between the vehicle group and control group (all P>0.05). Conclusions: Our results indicate that TRPC1 and STIM1 jointly regulate CaR-mediated Ca(2+) influx and nitric oxide generation in HUVECs in the form of binary complex.
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Affiliation(s)
- L M Wang
- Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Ministry of Education, Department of Pathophysiology, Department of Physiology, Medical College of Shihezi University, Shihezi 832002, China
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Wang X, Tang N, Lu Y, Li D. Congenital factor V deficiency and decreased VWF in a Chinese male patient with hematuria. Haemophilia 2017; 24:e16-e18. [PMID: 29105952 DOI: 10.1111/hae.13363] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/02/2017] [Indexed: 12/23/2022]
Affiliation(s)
- X. Wang
- Department of Laboratory Medicine; Tongji Hospital; Tongji Medical College; Huazhong University of Science and Technology; Wuhan China
| | - N. Tang
- Department of Laboratory Medicine; Tongji Hospital; Tongji Medical College; Huazhong University of Science and Technology; Wuhan China
| | - Y. Lu
- Department of Laboratory Medicine; Tongji Hospital; Tongji Medical College; Huazhong University of Science and Technology; Wuhan China
| | - D. Li
- Department of Hematology; Tongji Hospital; Tongji Medical College; Huazhong University of Science and Technology; Wuhan China
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Tian L, Duan YJ, Nie LZ, Li Z, Chen Z, Gao QZ, Yang Y, Tang N, Zheng J. [The regulation of CD44 expression by new tumor suppressor gene Arid2 and the influence of Arid2 on the invasion and metastasis in hepatocellular carcinoma cells]. Zhonghua Gan Zang Bing Za Zhi 2017; 24:196-201. [PMID: 27095763 DOI: 10.3760/cma.j.issn.1007-3418.2016.03.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To investigate the effect of a new tumor-suppressor gene Arid2 on the expression level of CD44 and the mechanism that Arid2 regulates the invasion and metastasis in human hepatocellular carcinoma cells HepG2 and Huh7. METHODS Recombinant pGL3-CD44 reporter plasmids were transfected into hepatoma cell lines HepG2 and Huh7 cells infected with adenovirus Arid2(Ad-Arid2). Dual luciferase assays were used to determine the relative luciferase activities of reporter plasmids. Western blot technique was used to detect the influence of Arid2 on the expression of transmembrane glycoprotein CD44. Cell migration assays of tumor cells were employed to observe the impact of overexpression of Arid2 on the invasion and metastasis abilities of tumor cells. The sizes of transplanted tumors were recorded to observe the growth of subcutaneous transplanted tumors in nude mice. Statistical significance was analyzed by one-way ANOVA for multiple comparisons, and independent-samples t-test was utilized to compare two groups. RESULTS Luciferase assay showed cells were transfected with different length of CD44 reporter plasmids, and their relative luciferase activities were improved to different degrees, compared with pGL3-Basic control. Meanwhile, the mean luciferase activities of pGL3-CD44 -791~+224bp reporter plasmids were significantly repressed by the overexpression of Arid2 which inhibition rates were up to 73.83%±0.92%(P< 0.05, HepG2) or 48.99%±1.37% (P <0.05, Huh7), compared with Ad-GFP control. Western blot results showed that CD44 protein expression was obviously decreased by overexpression of Arid2. Cell migration assays confirmed that the invasion and metastasis abilities were inhibited by increasing Arid2 expression in Human HepG2 or Huh7 cells, which inhibition rates were 66.95%±0.59%(P< 0.05)in HepG2 cells and 73.86%±0.49%(P< 0.05) in Huh7 cells respectively. The animal experiment results indicated that Arid2 could obviously delay or restrict the subcutaneous transplanted tumors growth in nude mice, which was declined by 98.57%±0.34%(P< 0.05). CONCLUSION CD44 promoter activities and protein expressions were significantly down-regulated by Arid2 in vitro. The growth and metastasis of tumors were obviously restrained in the hepatocellular carcinoma cells and nude models. In brief, these researches indicate CD44 may play important roles in the process where the invasion and metastasis of hepatocellular carcinoma cells are under the control of Arid2.The studies introduce and evaluate the relationships between Arid2 and CD44, and further provide a new research direction with the occurrence and development of hepatocellular carcinoma.
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Affiliation(s)
- L Tian
- The Key Laboratory of Molecular Biology of Infectious Diseases Designated by the Chinese Ministry of Education, Chongqing Medical University, Chongqing 400016, China
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Abstract
INTRODUCTION Surgery for hip fracture may be performed out-of-hours to avoid surgical delay. There is, however, a perception that this may constitute less-than-ideal conditions and result in a poorer outcome. The aim of this study was to evaluate the surgical outcome of elderly patients with hip fracture who underwent daytime versus out-of-hours surgery in Hong Kong. This will help make decisions about whether to operate out-of-hours or to delay surgery until the following day. METHODS This retrospective study included all elderly patients with hip fracture who were operated on and discharged from the Prince of Wales Hospital in 2014. Patients were divided into groups according to the time of surgical incision. Records were examined for 30-day mortality and postoperative surgical complications, and their potential associations with surgeon characteristics. RESULTS Overall, 367 patients were selected in this study with 242 patients in the daytime group and 125 in the out-of-hours group. Demographic characteristics were comparable between the two groups. The overall 30-day mortality rate was 2.0% and the surgical complication rate was 24.2%. Compared with the daytime group, there was no increase in 30-day mortality or surgical complications for out-of- hours group. Fewer surgeons were involved in out-of-hours surgery but the number of surgeons and their qualifications did not affect the outcomes. CONCLUSIONS The two groups were homogeneous in terms of demographic characteristics. Outcomes for 30-day mortality and postoperative surgical complications were comparable between the two groups. Surgeons' qualifications and number of surgeons involved were also not associated with the outcomes. Out-of-hours surgery remains a viable option in order to facilitate early surgery.
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Affiliation(s)
- Y M Chan
- Physiotherapy Department, Pok Oi Hospital, Yuen Long, Hong Kong
| | - N Tang
- Department of Orthopaedics and Traumatology, Prince of Wales Hospital, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - S K Chow
- Department of Orthopaedics and Traumatology, Prince of Wales Hospital, The Chinese University of Hong Kong, Shatin, Hong Kong
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Auyeung T, Lee J, Leung J, Tang N, Yu R, Kwok T, Woo J. PARADOXICAL ADVERSE ASSOCIATION BETWEEN HIGH VITAMIN D LEVEL AND MUSCLE STRENGTH. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.1542] [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: 11/12/2022] Open
Affiliation(s)
- T. Auyeung
- The Chinese Univerisity of Hong Kong, Hong Kong, China
| | - J. Lee
- The Chinese Univerisity of Hong Kong, Hong Kong, China
| | - J. Leung
- The Chinese Univerisity of Hong Kong, Hong Kong, China
| | - N. Tang
- The Chinese Univerisity of Hong Kong, Hong Kong, China
| | - R. Yu
- The Chinese Univerisity of Hong Kong, Hong Kong, China
| | - T. Kwok
- The Chinese Univerisity of Hong Kong, Hong Kong, China
| | - J. Woo
- The Chinese Univerisity of Hong Kong, Hong Kong, China
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Leung KS, Yuen WF, Ngai WK, Lam CY, Lau TW, Lee KB, Siu KM, Tang N, Wong SH, Cheung WH. How well are we managing fragility hip fractures? A narrative report on the review with the attempt to setup a Fragility Fracture Registry in Hong Kong. Hong Kong Med J 2017; 23:264-71. [PMID: 28473651 DOI: 10.12809/hkmj166124] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
INTRODUCTION In setting up a disease registry for fragility fractures in Hong Kong, we conducted a retrospective systematic study on the management of fragility hip fractures. Patient outcomes were compared with the standards from our orthopaedic working group and those from the British Orthopaedic Association that runs a mature fracture registry in the United Kingdom. METHODS Clinical data on fragility hip fracture patients admitted to six acute major hospitals in Hong Kong in 2012 were captured. These included demographics, pre- and post-operative assessments, discharge details, complications, and 1-year follow-up information. Analysis was performed according to the local standards with reference to those from the British Orthopaedic Association. RESULTS Overall, 91.0% of patients received orthopaedic care within 4 hours of admission and 60.5% received surgery within 48 hours. Preoperative geri-orthopaedic co-management was received by 3.5% of patients and was one of the reasons for the delayed surgery in 22% of patients. Only 22.9% were discharged with medication that would promote bone health. Institutionalisation on discharge significantly increased by 16.2% (P<0.001). Only 35.1% of patients attended out-patient follow-up 1 year following fracture, and mobility had deteriorated in 69.9% compared with the premorbid state. Death occurred in 17.3% of patients within a year of surgery compared with 1.6% mortality rate in a Hong Kong age-matched population. CONCLUSIONS The efficiency and quality of acute care for fragility hip fracture patients was documented. Regular geri-orthopaedic co-management can enhance acute care. Much effort is needed to improve functional recovery, prescription of bone health medications, attendance for follow-up, and to decrease institutionalisation. A Fracture Liaison Service is vital to improve long-term care and prevent secondary fractures.
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Affiliation(s)
- K S Leung
- Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - W F Yuen
- Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - W K Ngai
- Department of Orthopaedics and Traumatology, North District Hospital, Sheung Shui, Hong Kong
| | - C Y Lam
- Department of Orthopaedics and Traumatology, Tuen Mun Hospital, Tuen Mun, Hong Kong
| | - T W Lau
- Department of Orthopaedics and Traumatology, Queen Mary Hospital, Pokfulam, Hong Kong
| | - K B Lee
- Department of Orthopaedics and Traumatology, Queen Elizabeth Hospital, Jordan, Hong Kong
| | - K M Siu
- Department of Orthopaedics and Traumatology, Princess Margaret Hospital, Laichikok, Hong Kong
| | - N Tang
- Department of Orthopaedics and Traumatology, Prince of Wales Hospital, Shatin, Hong Kong
| | - S H Wong
- Department of Orthopaedics and Traumatology, Caritas Medical Centre, Shamshuipo, Hong Kong
| | - W H Cheung
- Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Shatin, Hong Kong
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Kamel L, Tang N, Malbreil M, San Clemente H, Le Marquer M, Roux C, Frei dit Frey N. The Comparison of Expressed Candidate Secreted Proteins from Two Arbuscular Mycorrhizal Fungi Unravels Common and Specific Molecular Tools to Invade Different Host Plants. Front Plant Sci 2017; 8:124. [PMID: 28223991 PMCID: PMC5293756 DOI: 10.3389/fpls.2017.00124] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Accepted: 01/20/2017] [Indexed: 05/19/2023]
Abstract
Arbuscular mycorrhizal fungi (AMF), belonging to the fungal phylum Glomeromycota, form mutualistic symbioses with roots of almost 80% of land plants. The release of genomic data from the ubiquitous AMF Rhizophagus irregularis revealed that this species possesses a large set of putative secreted proteins (RiSPs) that could be of major importance for establishing the symbiosis. In the present study, we aimed to identify SPs involved in the establishment of AM symbiosis based on comparative gene expression analyses. We first curated the secretome of the R. irregularis DAOM 197198 strain based on two available genomic assemblies. Then we analyzed the expression patterns of the putative RiSPs obtained from the fungus in symbiotic association with three phylogenetically distant host plants-a monocot, a dicot and a liverwort-in comparison with non-symbiotic stages. We found that 33 out of 84 RiSPs induced in planta were commonly up-regulated in these three hosts. Most of these common RiSPs are small proteins of unknown function that may represent putative host non-specific effector proteins. We further investigated the expressed secretome of Gigaspora rosea, an AM fungal species phylogenetically distant from R. irregularis. G. rosea also presents original symbiotic features, a narrower host spectrum and a restrictive geographic distribution compared to R. irregularis. Interestingly, when analyzing up-regulated G. rosea SPs (GrSPs) in different hosts, a higher ratio of host-specific GrSPs was found compared to RiSPs. Such difference of expression patterns may mirror the restrained host spectrum of G. rosea compared to R. irregularis. Finally, we identified a set of conserved SPs, commonly up-regulated by both fungi in all hosts tested, that could correspond to common keys of AMF to colonize host plants. Our data thus highlight the specificities of two distant AM fungi and help in understanding their conserved and specific strategies to invade different hosts.
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Affiliation(s)
- Laurent Kamel
- Laboratoire de Recherche en Sciences Végétales, Université Paul Sabatier - Université de Toulouse, Centre National de la Recherche ScientifiqueCastanet-Tolosan, France
- Agronutrition, Laboratoire de BiotechnologiesLabege, France
| | - Nianwu Tang
- Laboratoire de Recherche en Sciences Végétales, Université Paul Sabatier - Université de Toulouse, Centre National de la Recherche ScientifiqueCastanet-Tolosan, France
| | - Mathilde Malbreil
- Laboratoire de Recherche en Sciences Végétales, Université Paul Sabatier - Université de Toulouse, Centre National de la Recherche ScientifiqueCastanet-Tolosan, France
| | - Hélène San Clemente
- Laboratoire de Recherche en Sciences Végétales, Université Paul Sabatier - Université de Toulouse, Centre National de la Recherche ScientifiqueCastanet-Tolosan, France
| | - Morgane Le Marquer
- Laboratoire de Recherche en Sciences Végétales, Université Paul Sabatier - Université de Toulouse, Centre National de la Recherche ScientifiqueCastanet-Tolosan, France
| | - Christophe Roux
- Laboratoire de Recherche en Sciences Végétales, Université Paul Sabatier - Université de Toulouse, Centre National de la Recherche ScientifiqueCastanet-Tolosan, France
| | - Nicolas Frei dit Frey
- Laboratoire de Recherche en Sciences Végétales, Université Paul Sabatier - Université de Toulouse, Centre National de la Recherche ScientifiqueCastanet-Tolosan, France
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Tang N, Ting V, Fu M, Roura E. The expression of bitter taste receptors (T2Rs) in the porcine gastrointestinal tract epithelium and smooth muscle. Anim Prod Sci 2017. [DOI: 10.1071/anv57n12ab108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Xie X, Lin H, Peng X, Xu C, Sun Z, Jiang K, Huang A, Wu X, Tang N, Salvioli A, Bonfante P, Zhao B. Arbuscular Mycorrhizal Symbiosis Requires a Phosphate Transceptor in the Gigaspora margarita Fungal Symbiont. Mol Plant 2016; 9:1583-1608. [PMID: 27688206 DOI: 10.1016/j.molp.2016.08.011] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [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: 04/10/2016] [Revised: 08/03/2016] [Accepted: 08/17/2016] [Indexed: 06/06/2023]
Abstract
The majority of terrestrial vascular plants are capable of forming mutualistic associations with obligate biotrophic arbuscular mycorrhizal (AM) fungi from the phylum Glomeromycota. This mutualistic symbiosis provides carbohydrates to the fungus, and reciprocally improves plant phosphate uptake. AM fungal transporters can acquire phosphate from the soil through the hyphal networks. Nevertheless, the precise functions of AM fungal phosphate transporters, and whether they act as sensors or as nutrient transporters, in fungal signal transduction remain unclear. Here, we report a high-affinity phosphate transporter GigmPT from Gigaspora margarita that is required for AM symbiosis. Host-induced gene silencing of GigmPT hampers the development of G. margarita during AM symbiosis. Most importantly, GigmPT functions as a phosphate transceptor in G. margarita regarding the activation of the phosphate signaling pathway as well as the protein kinase A signaling cascade. Using the substituted-cysteine accessibility method, we identified residues A146 (in transmembrane domain [TMD] IV) and Val357 (in TMD VIII) of GigmPT, both of which are critical for phosphate signaling and transport in yeast during growth induction. Collectively, our results provide significant insights into the molecular functions of a phosphate transceptor from the AM fungus G. margarita.
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Affiliation(s)
- Xianan Xie
- State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, P.R.China
| | - Hui Lin
- State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, P.R.China
| | - Xiaowei Peng
- State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, P.R.China
| | - Congrui Xu
- State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, P.R.China
| | - Zhongfeng Sun
- State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, P.R.China
| | - Kexin Jiang
- State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, P.R.China
| | - Antian Huang
- State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, P.R.China
| | - Xiaohui Wu
- State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, P.R.China
| | - Nianwu Tang
- State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, P.R.China
| | - Alessandra Salvioli
- Department of Life Sciences and Systems Biology, University of Torino, Viale Mattioli 25, 10125 Torino, Italy
| | - Paola Bonfante
- Department of Life Sciences and Systems Biology, University of Torino, Viale Mattioli 25, 10125 Torino, Italy
| | - Bin Zhao
- State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, P.R.China.
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Garg D, Tang N, Homel P, Ricardo M, Bral P. Febrile Morbidity After Robotic versus Abdominal Myomectomy. J Minim Invasive Gynecol 2016. [DOI: 10.1016/j.jmig.2016.08.063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Bordelon J, Tang N, Elston D, Niedt G, Lazic Strugar T. Multiple apocrine hidrocystomas successfully treated with botulinum toxin A. Br J Dermatol 2016; 176:488-490. [DOI: 10.1111/bjd.14753] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/10/2016] [Indexed: 11/28/2022]
Affiliation(s)
- J.R. Bordelon
- Department of Dermatology and Cutaneous Surgery University of Miami Miller School of Medicine Miami FL U.S.A
| | - N. Tang
- Department of Dermatology Mount Sinai School of Medicine New York NY U.S.A
| | - D. Elston
- Department of Dermatology and Dermatologic Surgery Medical University of South Carolina Charleston SC U.S.A
| | - G. Niedt
- Department of Dermatology Columbia University New York NY U.S.A
| | - T. Lazic Strugar
- Department of Dermatology Mount Sinai School of Medicine New York NY U.S.A
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Prabakar C, Tang N, Nematian S, Hosseini NS, Bhatt D, Homel P, Bral P. The Utility of the Transverse Abdominus Plane (TAP) Block in Minimally Invasive Gynecologic Surgery: A Randomized Double Blinded Clinical Trial. J Minim Invasive Gynecol 2016; 22:S76. [PMID: 27679333 DOI: 10.1016/j.jmig.2015.08.203] [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: 10/22/2022]
Affiliation(s)
- C Prabakar
- Ob/Gyn, Maimonides Medical Center, Brooklyn, New York
| | - N Tang
- Ob/Gyn, Maimonides Medical Center, Brooklyn, New York
| | - S Nematian
- Ob/Gyn, Maimonides Medical Center, Brooklyn, New York
| | | | - D Bhatt
- Ob/Gyn, Maimonides Medical Center, Brooklyn, New York
| | - P Homel
- Ob/Gyn, Maimonides Medical Center, Brooklyn, New York
| | - P Bral
- Ob/Gyn, Maimonides Medical Center, Brooklyn, New York
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Tang N, Yin SY. Advanced age and high-residual platelet reactivity in patients receiving dual antiplatelet therapy with clopidogrel or ticagrelor: comment. J Thromb Haemost 2016; 14:1484-5. [PMID: 26954307 DOI: 10.1111/jth.13310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Accepted: 03/03/2016] [Indexed: 11/26/2022]
Affiliation(s)
- N Tang
- Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - S Y Yin
- Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
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Zhang BJ, Zhang HP, Chen QZ, Tang N, Wang LK, Wang RF, Zhang BL. Molecular cloning and analysis of a receptor-like promoter of Gbvdr3 gene in sea island cotton. Genet Mol Res 2016; 15:gmr8636. [PMID: 27323087 DOI: 10.4238/gmr.15028636] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Verticillium wilt caused by soil borne fungus Verticillium dahliae could significantly reduce cotton yield. The Ve1 homologous gene Gbvdr3 is resistant to Verticillium wilt. In order to understand of the function of the promoter Gbvdr3 in Gossypium barbadense, the promoter region of the receptor-like gene Gbvdr3 was obtained by genome walking, and the cis-element in the promoter was identified using the PLACE software in this study. The sequence analysis showed that the promoter contained elements related to stress resistance and light regulation. The cloned promoter was fused to the GUS reporter gene and transformed into Arabidopsis. GUS expression was specifically detected in roots, flowers, and seeds, suggesting that the expression of Gbvdr3 is tissue-specific. Separation and characterization analysis of the promoter of Gbvdr3 provides a platform for further research and application of this gene. Thorough understanding of the function of the Gbvdr3 promoter is important for better understanding of Gbvdr3 function. These results indicated that the promoter of Gbvdr3 was a tissue-specific promoter.
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Affiliation(s)
- B-J Zhang
- Nanjing Xiaozhuang University, Nanjing, China.,College of Life Sciences, Anhui Agricultural University, Hefei, China
| | - H-P Zhang
- College of Life Sciences, Anhui Agricultural University, Hefei, China
| | - Q-Z Chen
- Nanjing Xiaozhuang University, Nanjing, China
| | - N Tang
- Nanjing Xiaozhuang University, Nanjing, China
| | - L-K Wang
- Nanjing Xiaozhuang University, Nanjing, China
| | - R-F Wang
- College of Life Sciences, Anhui Agricultural University, Hefei, China
| | - B-L Zhang
- Institute of Agro-biotechnology, Jiangsu Academy of Agricultural Sciences, Nanjing, China
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De Amorim Paiva C, Tang N, Bral P. 57: Long-term effect of instituting a laparoscopic curriculum on knowledge of OBGYN residents. Am J Obstet Gynecol 2016. [DOI: 10.1016/j.ajog.2016.01.088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Tang N, Bral P. 28: Tips and tricks in robotically assisted laparoscopic myomectomy for large uteri. Am J Obstet Gynecol 2016. [DOI: 10.1016/j.ajog.2016.01.142] [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: 10/22/2022]
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Tang N, San Clemente H, Roy S, Bécard G, Zhao B, Roux C. A Survey of the Gene Repertoire of Gigaspora rosea Unravels Conserved Features among Glomeromycota for Obligate Biotrophy. Front Microbiol 2016; 7:233. [PMID: 26973612 PMCID: PMC4771724 DOI: 10.3389/fmicb.2016.00233] [Citation(s) in RCA: 72] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Accepted: 02/15/2016] [Indexed: 01/22/2023] Open
Abstract
Arbuscular mycorrhizal (AM) fungi are a diverse group of soil fungi (Glomeromycota) that form the most ancient mutualistic association termed AM symbiosis with a majority of land plants, improving their nutrition uptake and resistance to stresses. In contrast to their great ecological implications, the knowledge of the molecular biological mechanisms involved is still scant, partly due to the limited genomic resources available. Here, we describe the gene repertoire of a new AM fungus Gigaspora rosea (Diversisporales). Among the 86332 non-redundant virtual transcripts assembled, 15346 presented similarities with proteins in the Refseq database and 10175 were assigned with GO terms. KOG and Interpro domain annotations clearly showed an enrichment of genes involved in signal transduction in G. rosea. KEGG pathway analysis indicates that most primary metabolic processes are active in G. rosea. However, as for Rhizophagus irregularis, several metabolic genes were not found, including the fatty acid synthase (FAS) gene. This finding supports the hypothesis that AM fungi depend on the lipids produced by their hosts. Furthermore, the presence of a large number of transporters and 100s of secreted proteins, together with the reduced number of plant cell wall degrading enzymes could be interpreted as an evolutionary adaptation to its mutualistic obligate biotrophy. The detection of meiosis-related genes suggests that G. rosea might use a cryptic sexual process. Lastly, a phylogeny of basal fungi clearly shows Glomeromycota as a sister clade to Mucoromycotina, not only to the Mucorales or Mortierellales. The characterization of the gene repertoire from an AM fungal species belonging to the order of Diversisporales and its comparison with the gene sets of R. irregularis (Glomerales) and Gigaspora margarita (Diversisporales), reveal that AM fungi share several features linked to mutualistic obligate biotrophy. This work contributes to lay the foundation for forthcoming studies into the genomics of Diversisporales, and also illuminates the utility of comparing gene repertoires of species from Diversisporales and other clades of Glomeromycota to gain more insights into the genetics and evolution of this fungal group.
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Affiliation(s)
- Nianwu Tang
- State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural UniversityWuhan, China
- CNRS, Laboratoire de Recherche en Sciences Végétales, UMR, Université Paul Sabatier – Université de ToulouseCastanet Tolosan, France
| | - Hélène San Clemente
- CNRS, Laboratoire de Recherche en Sciences Végétales, UMR, Université Paul Sabatier – Université de ToulouseCastanet Tolosan, France
| | - Sébastien Roy
- AGRONUTRITION Laboratoire de BiotechnologiesToulouse, France
| | - Guillaume Bécard
- CNRS, Laboratoire de Recherche en Sciences Végétales, UMR, Université Paul Sabatier – Université de ToulouseCastanet Tolosan, France
| | - Bin Zhao
- State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural UniversityWuhan, China
| | - Christophe Roux
- CNRS, Laboratoire de Recherche en Sciences Végétales, UMR, Université Paul Sabatier – Université de ToulouseCastanet Tolosan, France
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De Amorim Paiva CC, Tang N, Prabakar C, Bral P. Effect of Instituting a Laparoscopic Curriculum on Laparoscopic Knowledge for Ob/Gyn Residents. J Minim Invasive Gynecol 2015; 22:S251. [DOI: 10.1016/j.jmig.2015.08.873] [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: 11/16/2022]
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40
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Prabakar C, Wagner J, Tang N, Sandoval J, Narisimhulu D. Use of D50 as Distension Medium in Diagnostic Cystoscopy. J Minim Invasive Gynecol 2015; 22:S150. [DOI: 10.1016/j.jmig.2015.08.545] [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: 10/22/2022]
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41
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Narasimhulu DM, Prabakar C, Tang N, Homel P, Bral P. 50% Dextrose as the Distension Medium to Improve Visualization of Ureteric Jets During Postoperative Cystoscopy. J Minim Invasive Gynecol 2015; 22:S99. [DOI: 10.1016/j.jmig.2015.08.266] [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: 11/26/2022]
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42
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Rong X, Wang XQ, Chen G, Zheng XT, Wang P, Xu FJ, Qin ZX, Tang N, Chen YH, Sang LW, Sumiya M, Ge WK, Shen B. Mid-infrared Photoconductive Response in AlGaN/GaN Step Quantum Wells. Sci Rep 2015; 5:14386. [PMID: 26395756 PMCID: PMC4585772 DOI: 10.1038/srep14386] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [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: 06/18/2015] [Accepted: 08/25/2015] [Indexed: 11/09/2022] Open
Abstract
AlGaN/GaN quantum structure is an excellent candidate for high speed infrared detectors based on intersubband transitions. However, fabrication of AlGaN/GaN quantum well infrared detectors suffers from polarization-induced internal electric field, which greatly limits the carrier vertical transport. In this article, a step quantum well is proposed to attempt solving this problem, in which a novel spacer barrier layer is used to balance the internal electric field. As a result, a nearly flat band potential profile is obtained in the step barrier layers of the AlGaN/GaN step quantum wells and a bound-to-quasi-continuum (B-to-QC) type intersubband prototype device with detectable photocurrent at atmosphere window (3-5 μm) is achieved in such nitride semiconductors.
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Affiliation(s)
- X Rong
- State Key Laboratory of Artificial Microstructure and Mesoscopic Physics, School of Physics, Peking University, Beijing 100871, China
| | - X Q Wang
- State Key Laboratory of Artificial Microstructure and Mesoscopic Physics, School of Physics, Peking University, Beijing 100871, China.,Collaborative Innovation Center of Quantum Matter, Beijing, China
| | - G Chen
- State Key Laboratory of Artificial Microstructure and Mesoscopic Physics, School of Physics, Peking University, Beijing 100871, China
| | - X T Zheng
- State Key Laboratory of Artificial Microstructure and Mesoscopic Physics, School of Physics, Peking University, Beijing 100871, China
| | - P Wang
- State Key Laboratory of Artificial Microstructure and Mesoscopic Physics, School of Physics, Peking University, Beijing 100871, China
| | - F J Xu
- State Key Laboratory of Artificial Microstructure and Mesoscopic Physics, School of Physics, Peking University, Beijing 100871, China
| | - Z X Qin
- State Key Laboratory of Artificial Microstructure and Mesoscopic Physics, School of Physics, Peking University, Beijing 100871, China
| | - N Tang
- State Key Laboratory of Artificial Microstructure and Mesoscopic Physics, School of Physics, Peking University, Beijing 100871, China
| | - Y H Chen
- Laboratory of Semiconductor Material Science, Institute of Semiconductors, CAS, Beijing 100083, China
| | - L W Sang
- National Institute for Materials Science (NIMS), Tsukuba, Ibaraki, 305-0044, Japan
| | - M Sumiya
- National Institute for Materials Science (NIMS), Tsukuba, Ibaraki, 305-0044, Japan
| | - W K Ge
- State Key Laboratory of Artificial Microstructure and Mesoscopic Physics, School of Physics, Peking University, Beijing 100871, China
| | - B Shen
- State Key Laboratory of Artificial Microstructure and Mesoscopic Physics, School of Physics, Peking University, Beijing 100871, China.,Collaborative Innovation Center of Quantum Matter, Beijing, China
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43
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Chan S, Mo F, Chan A, Chan C, Mok K, Liu C, Tang N, Chan A, Yeo W. P-108 Systematic evaluation of serum inflammatory markers for prognostication of hepatocellular carcinoma (HCC). Ann Oncol 2015. [DOI: 10.1093/annonc/mdv233.108] [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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44
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Zhang X, Xu FJ, Wang JM, He CG, Zhang LS, Huang J, Cheng JP, Qin ZX, Yang XL, Tang N, Wang XQ, Shen B. Epitaxial growth of AlN films on sapphire via a multilayer structure adopting a low- and high-temperature alternation technique. CrystEngComm 2015. [DOI: 10.1039/c5ce01159k] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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45
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Cui YM, Jiao HL, Ye YP, Chen CM, Wang JX, Tang N, Li TT, Lin J, Qi L, Wu P, Wang SY, He MR, Liang L, Bian XW, Liao WT, Ding YQ. FOXC2 promotes colorectal cancer metastasis by directly targeting MET. Oncogene 2014; 34:4379-90. [PMID: 25381815 DOI: 10.1038/onc.2014.368] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2014] [Revised: 09/24/2014] [Accepted: 09/30/2014] [Indexed: 12/11/2022]
Abstract
Metastasis is the major cause of death in colorectal cancer (CRC). Although multiple genes have been identified to be responsible for the development of CRC, the molecular changes that enable CRC cells to undergo early local invasion and to form distant metastatic colonies still remain largely unknown. Herein, we investigated the role of Forkhead box protein C2 (FOXC2) and explored the underlying mechanisms in invasion and metastasis of CRC. We show that both high FOXC2 expression and nuclear localization of FOXC2 are significantly correlated with advanced TNM (T=primary tumor; N=regional lymph nodes; M=distant metastasis) stages. FOXC2 enhanced the invasive abilities of CRC cells in vitro and promoted local invasion and distant metastasis in an orthotopic mouse metastatic model of CRC. Microarray analysis revealed that overexpression of FOXC2 increased the proto-oncogene MET tyrosine kinase expression and activated the hepatocyte growth factor (HGF)-MET signaling pathway. Furthermore, luciferase reporter assays and chromatin immunoprecipitation assays revealed that FOXC2 directly associated with MET promoter to increase the transcriptional activity of MET. Inhibition of MET attenuates the invasive phenotype and metastatic potential of FOXC2-overexpressing CRC cells, indicating that MET is a major mediator of FOXC2-promoted metastasis. In addition, FOXC2 expression was positively correlated with MET expression in CRC tissue samples. Our findings suggest that FOXC2 has a crucial role in CRC metastasis by regulating HGF-MET signaling via inducing MET expression, highlighting FOXC2 as a potential therapeutic target for preventing or reducing metastasis in CRC.
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Affiliation(s)
- Y-M Cui
- 1] Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, China [2] Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China [3] Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, Guangzhou, China
| | - H-L Jiao
- 1] Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, China [2] Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China [3] Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, Guangzhou, China
| | - Y-P Ye
- 1] Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, China [2] Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China [3] Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, Guangzhou, China
| | - C-M Chen
- 1] Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, China [2] Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China [3] Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, Guangzhou, China
| | - J-X Wang
- 1] Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, China [2] Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China [3] Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, Guangzhou, China
| | - N Tang
- 1] Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, China [2] Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China [3] Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, Guangzhou, China
| | - T-T Li
- 1] Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, China [2] Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China [3] Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, Guangzhou, China
| | - J Lin
- 1] Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, China [2] Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China [3] Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, Guangzhou, China
| | - L Qi
- 1] Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, China [2] Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China [3] Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, Guangzhou, China
| | - P Wu
- 1] Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, China [2] Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China [3] Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, Guangzhou, China
| | - S-Y Wang
- 1] Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, China [2] Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China [3] Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, Guangzhou, China
| | - M-R He
- Guangdong Provincial Key Laboratory of Gastroenterology and Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - L Liang
- 1] Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, China [2] Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China [3] Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, Guangzhou, China
| | - X-W Bian
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - W-T Liao
- 1] Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, China [2] Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China [3] Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, Guangzhou, China
| | - Y-Q Ding
- 1] Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, China [2] Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China [3] Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, Guangzhou, China
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Wang RR, Jin JH, Womack AW, Lyu D, Kokane SS, Tang N, Zou X, Lin Q, Chen J. Neonatal ketamine exposure causes impairment of long-term synaptic plasticity in the anterior cingulate cortex of rats. Neuroscience 2014; 268:309-17. [PMID: 24674848 DOI: 10.1016/j.neuroscience.2014.03.029] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2013] [Revised: 02/14/2014] [Accepted: 03/14/2014] [Indexed: 01/27/2023]
Abstract
Ketamine, a dissociative anesthetic most commonly used in many pediatric procedures, has been reported in many animal studies to cause widespread neuroapoptosis in the neonatal brain after exposure in high doses and/or for a prolonged period. This neurodegenerative change occurs most severely in the forebrain including the anterior cingulate cortex (ACC) that is an important brain structure for mediating a variety of cognitive functions. However, it is still unknown whether such apoptotic neurodegeneration early in life would subsequently impair the synaptic plasticity of the ACC later in life. In this study, we performed whole-cell patch-clamp recordings from the ACC brain slices of young adult rats to examine any alterations in long-term synaptic plasticity caused by neonatal ketamine exposure. Ketamine was administered at postnatal day 4-7 (subcutaneous injections, 20mg/kg given six times, once every 2h). At 3-4weeks of age, long-term potentiation (LTP) was induced and recorded by monitoring excitatory postsynaptic currents from ACC slices. We found that the induction of LTP in the ACC was significantly reduced when compared to the control group. The LTP impairment was accompanied by an increase in the α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptor-mediated excitatory synaptic transmission and a decrease in GABA inhibitory synaptic transmission in neurons of the ACC. Thus, our present findings show that neonatal ketamine exposure causes a significant LTP impairment in the ACC. We suggest that the imbalanced synaptic transmission is likely to contribute to ketamine-induced LTP impairment in the ACC.
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Affiliation(s)
- R-R Wang
- Institute for Biomedical Sciences of Pain, Capital Medical University, Beijing, China; Department of Psychology, College of Science, The University of Texas at Arlington, Arlington, TX, USA; Institute for Biomedical Sciences of Pain and Institute for Functional Brain Disorders, Tangdu Hospital, The Fourth Military Medical University, Xi'an, China
| | - J-H Jin
- Department of Psychology, College of Science, The University of Texas at Arlington, Arlington, TX, USA
| | - A W Womack
- Department of Psychology, College of Science, The University of Texas at Arlington, Arlington, TX, USA
| | - D Lyu
- Department of Psychology, College of Science, The University of Texas at Arlington, Arlington, TX, USA
| | - S S Kokane
- Department of Psychology, College of Science, The University of Texas at Arlington, Arlington, TX, USA
| | - N Tang
- Department of Psychology, College of Science, The University of Texas at Arlington, Arlington, TX, USA
| | - X Zou
- Department of Psychology, College of Science, The University of Texas at Arlington, Arlington, TX, USA
| | - Q Lin
- Department of Psychology, College of Science, The University of Texas at Arlington, Arlington, TX, USA.
| | - J Chen
- Institute for Biomedical Sciences of Pain, Capital Medical University, Beijing, China; Institute for Biomedical Sciences of Pain and Institute for Functional Brain Disorders, Tangdu Hospital, The Fourth Military Medical University, Xi'an, China.
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48
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Guo L, Wang XQ, Zheng XT, Yang XL, Xu FJ, Tang N, Lu LW, Ge WK, Shen B, Dmowski LH, Suski T. Revealing of the transition from n- to p-type conduction of InN:Mg by photoconductivity effect measurement. Sci Rep 2014; 4:4371. [PMID: 24621830 PMCID: PMC3952149 DOI: 10.1038/srep04371] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2014] [Accepted: 02/26/2014] [Indexed: 11/22/2022] Open
Abstract
We report evidence of the transition from n- to p-type conduction of InN with increasing Mg dopant concentration by using photoconductivity (PC) measurement at room temperature. This transition is depicted as a conversion from negative to positive PC under above-bandgap optical excitation. The n- to p-type transition in InN:Mg is further confirmed by thermopower measurements. PC detection method is a bulk effect since the optical absorption of the surface electron accumulation is negligibly low due to its rather small thickness, and thus shows advantage to detect p-type conduction. This technique is certainly helpful to study p-type doping of InN, which is still a subject of discussions.
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Affiliation(s)
- L Guo
- State Key Laboratory of Artificial Microstructure and Mesoscopic Physics, School of Physics, Peking University, Beijing 100871, China
| | - X Q Wang
- 1] State Key Laboratory of Artificial Microstructure and Mesoscopic Physics, School of Physics, Peking University, Beijing 100871, China [2] Collaborative Innovation Center of Quantum Matter, Beijing, China
| | - X T Zheng
- State Key Laboratory of Artificial Microstructure and Mesoscopic Physics, School of Physics, Peking University, Beijing 100871, China
| | - X L Yang
- State Key Laboratory of Artificial Microstructure and Mesoscopic Physics, School of Physics, Peking University, Beijing 100871, China
| | - F J Xu
- State Key Laboratory of Artificial Microstructure and Mesoscopic Physics, School of Physics, Peking University, Beijing 100871, China
| | - N Tang
- State Key Laboratory of Artificial Microstructure and Mesoscopic Physics, School of Physics, Peking University, Beijing 100871, China
| | - L W Lu
- State Key Laboratory of Artificial Microstructure and Mesoscopic Physics, School of Physics, Peking University, Beijing 100871, China
| | - W K Ge
- State Key Laboratory of Artificial Microstructure and Mesoscopic Physics, School of Physics, Peking University, Beijing 100871, China
| | - B Shen
- 1] State Key Laboratory of Artificial Microstructure and Mesoscopic Physics, School of Physics, Peking University, Beijing 100871, China [2] Collaborative Innovation Center of Quantum Matter, Beijing, China
| | - L H Dmowski
- Institute of High Pressure Physics "Unipress", Polish Academy of Sciences, ul. Sokolowska 29/37, 01-142 Warsaw, Poland
| | - T Suski
- Institute of High Pressure Physics "Unipress", Polish Academy of Sciences, ul. Sokolowska 29/37, 01-142 Warsaw, Poland
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49
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Chillar A, So SP, Tang N, Ruan KH. Identification of Tumorigenesis from the Specific Coupling of Cyclooxygenase-2 with Microsomal Prostaglandin E 2 Synthase-1 in vivo. EUR J INFLAMM 2014. [DOI: 10.1177/1721727x1401200108] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
A newly created hybrid enzyme (COX-2-10aa-mPGES-1), which mimics the specific biosynthesis of the inflammatory PGE2 through COX-2's coupling to mPGES-1, was stably expressed in HEK293 cells. The stable cell line, which consistently expresses the superior triple catalytic (Trip-Cat) activities from COX-2 and mPGES-1, was able to directly convert arachidonic acid into the pathogenic PGE2 and distinguish it from other PGE2 synthesizing pathways, as confirmed by enzyme immunoassay, LC/MS analysis and a specific [14C]-AA (arachidonic acid) metabolite analysis approach. A competitive assay confirmed that the endogenous cPGES and mPGES-2 in the HEK293 cells had little involvement in the presence of the expressed COX-2-10aa-mPGES-1 for the synthesis of pathogenic PGE2. Furthermore, subcutaneous injection of the stable cell lines into nu/nu mice revealed 100% (10 out 10) occurrence of tumor mass formation beginning on Day 7 and a continuous progression of the masses to the maximal size which required sacrificing the mice. In contrast, only 10% occurrence of tumor masses, though smaller and with slower growth rates, were observed for the group of vector-transfected HEK293 control cells expressing only endogenous cPGES and/or mPGES-2. The PGE2 produced from multiple pathways by the HEK293 cells co-expressing the individual wild type COX-2 and mPGES-1, and in the presence of endogenous cPGES and mPGES-2, showed also a significantly increased tumor occurrence rate to 30%, which confirmed that the sole coupling of COX-2 to mPGES-1 is a powerful tumor-advancing factor. This result implies that the engineered COX-2-10aa-mPGES-1 could be a promising molecule as a drug developing target against the pathway of COX-2 coupled to mPGES-1 to treat inflammatory diseases and cancers.
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Affiliation(s)
- A. Chillar
- The Center for Experimental Therapeutics and Pharmacoinformatics, Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, Texas, U.S.A
| | - S-P. So
- The Center for Experimental Therapeutics and Pharmacoinformatics, Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, Texas, U.S.A
| | | | - K-H. Ruan
- The Center for Experimental Therapeutics and Pharmacoinformatics, Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, Texas, U.S.A
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50
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Bi Y, He Y, Huang JY, Xu L, Tang N, He TC, Feng T. Induced maturation of hepatic progenitor cells in vitro. Braz J Med Biol Res 2013; 46:559-66. [PMID: 23903683 PMCID: PMC3859339 DOI: 10.1590/1414-431x20132455] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [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: 06/30/2012] [Accepted: 04/15/2013] [Indexed: 12/18/2022] Open
Abstract
Hepatic progenitor cells (HPCs) are a potential cell source for liver cell
transplantation but do not function like mature liver cells. We sought an
effective and reliable method to induce HPC maturation. An immortalized HP14.5
albumin promoter-driven Gaussian luciferase (ALB-GLuc) cell line was established
from HPCs isolated from fetal mouse liver of post coitus day 14.5 mice to
investigate the effect of induction factors on ALB promoter. HP14.5 parental
cells were cultured in DMEM with different combinations of 2% horse serum (HS),
0.1 µM dexamethasone (DEX), 10 ng/mL hepatic growth factor (HGF), and/or 20
ng/mL fibroblast growth factor 4 (FGF4). Trypan blue and crystal violet staining
were used to assess cell proliferation with different induction conditions.
Expression of hepatic markers was measured by semi-quantitative RT-PCR, Western
blot, and immunofluorescence. Glycogen storage and metabolism were detected by
periodic acid-Schiff and indocyanine green (ICG) staining. GLuc activity
indicated ALB expression. The combination of 2% HS+0.1 µM Dex+10 ng/mL HGF+20
ng/mL FGF4 induced the highest ALB-GLuc activity. Cell proliferation decreased
in 2% HS but increased by adding FGF4. Upon induction, and consistent with
hepatocyte development, DLK, AFP, and CK19 expression decreased, while ALB,
CK18, and UGT1A expression increased. The maturity markers tyrosine
aminotransferase and apolipoprotein B were detected at days 3 and 6
post-induction, respectively. ICG uptake and glycogen synthesis were detectable
at day 6 and increased over time. Therefore, we demonstrated that HPCs were
induced to differentiate into functional mature hepatocytes in
vitro, suggesting that factor-treated HPCs may be further explored
as a means of liver cell transplantation.
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Affiliation(s)
- Y Bi
- Stem Cell Biology and Therapy Laboratory, Department of Pediatric Surgery, Key Laboratory of Child Development and Disorders, Ministry of Education, Chongqing, China
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