72751
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Ni B, Hu J, Chen D, Li L, Chen D, Wang J, Wang L. Alternative splicing of spleen tyrosine kinase differentially regulates colorectal cancer progression. Oncol Lett 2016; 12:1737-44. [PMID: 27602108 DOI: 10.3892/ol.2016.4858] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2015] [Accepted: 06/21/2015] [Indexed: 12/27/2022] Open
Abstract
Spleen tyrosine kinase (SYK) has been reported as a potential tumor suppressor in colorectal cancer (CRC). However, the role of alternative splicing of SYK in carcinogenesis remains unclear. In the present study, SYK isoforms were overexpressed in the human CRC HCT 116 cell line using lentiviral expression vectors to investigate the biological functions of full length SYK [SYK(L)] and short form SYK [SYK(S)] in CRC. Real-time cellular analysis and the 5-ethynyl-2-deoxyuridine assay were used to detect the effects of SYK(L) and SYK(S) on cell proliferation. Cell cycle progression and migration were assessed via flow cytometry and Transwell assays, respectively. The results revealed that the recombinant lentivirus with SYK(L) overexpression significantly suppressed the proliferation and metastasis of CRC cells, while SYK(S) overexpression did not. In addition, MTS assays demonstrated that SYK(L) and SYK(S) increased the cellular sensitivity to 5-fluorouracil (5-FU), suggesting that SYK(L) and 5-FU produce a significant synergistic effect on CRC cell proliferation, while SYK(S) has an effect on modulating CRC 5-FU sensitivity. Furthermore, quantitative polymerase chain reaction results revealed that SYK(L) was downregulated in 69% of 26 pairs of CRC and adjacent non-cancerous tissues, whereas SYK(S) exhibited no significant differences between tumor and normal tissues. Overall, the present data provides evidence that SYK(L) is a tumor suppressor in CRC, and both SYK(L) and SYK(S) may serve as important predictors in the chemotherapeutic treatment of CRC.
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72752
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Liang H, Sun Q, Zhen Y, Li F, Xu Y, Liu Y, Zhang X, Qin M. The differentiation of amniotic fluid stem cells into sweat glandlike cells is enhanced by the presence of Sonic hedgehog in the conditioned medium. Exp Dermatol 2016; 25:714-20. [PMID: 27120089 DOI: 10.1111/exd.13062] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/25/2016] [Indexed: 11/30/2022]
Abstract
After patients suffer severe full-thickness burn injuries, the current treatments cannot lead to the complete self-regeneration of the sweat gland structure and function. Therefore, it is important to identify new methods for acquiring sufficient functional sweat gland cells to restore skin function. In this study, we induced CD117+ human amniotic fluid stem (hAFS) cells to differentiate into sweat glandlike (hAFS-SG) cells based on the use of conditioned medium (CM) from the human sweat gland (hSG) cells. Real-time PCR and immunofluorescent staining were used to confirm the expression of the sweat gland-related genes Ectodysplasin-A (EDA), Ectodysplasin-A receptor (EDAR), keratin 8 (K8) and carcino-embryonic antigen (CEA). Transmission electron microscopy analysis shows that microvilli, the cellular structures that are typical for hSG cells, can also be observed on the membrane of the hAFS-SG cells. Our test for the calcium response to acetylcholine (Ach) proved that hAFS-SG cells have the potential to respond to Ach in a manner similar to normal sweat glands. A three-dimensional culture is an effective approach that stimulates the hAFS-SG cells to form tubular structures and drives hAFS-SG cells to mature into higher stage. We also found that epidermal growth factor enhances the efficiency of differentiation and that Sonic hedgehog is an important factor of the CM that influences sweat gland differentiation. Our study provides the basis for further investigations into novel methods of inducing stem cells to differentiate into sweat glandlike cells.
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Affiliation(s)
- Hansi Liang
- Jiangsu Institute of Clinical Immunology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, China.,The Stem Cell and Biomedical Material Key Laboratory of Jiangsu Province (The State Key Laboratory Incubation Base), Soochow University, Suzhou, Jiangsu Province, China
| | - Qing Sun
- Jiangsu Institute of Clinical Immunology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, China.,The Stem Cell and Biomedical Material Key Laboratory of Jiangsu Province (The State Key Laboratory Incubation Base), Soochow University, Suzhou, Jiangsu Province, China
| | - Yunfang Zhen
- The Center of Diagnosis and Treatment for Children's Bone Diseases, Children's Hospital of Soochow University, Suzhou, Jiangsu Province, China
| | - Fang Li
- The Stem Cell and Biomedical Material Key Laboratory of Jiangsu Province (The State Key Laboratory Incubation Base), Soochow University, Suzhou, Jiangsu Province, China.,Department of Human Anatomy, Histology and Embryology, School of Biology and Basic Medical Sciences, Soochow University, Suzhou, Jiangsu Province, China
| | - YunYun Xu
- Institute of Pediatrics, Children's Hospital of Soochow University, Suzhou, Jiangsu Province, China
| | - Yao Liu
- The Center of Diagnosis and Treatment for Children's Bone Diseases, Children's Hospital of Soochow University, Suzhou, Jiangsu Province, China
| | - Xueguang Zhang
- Jiangsu Institute of Clinical Immunology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, China.,The Stem Cell and Biomedical Material Key Laboratory of Jiangsu Province (The State Key Laboratory Incubation Base), Soochow University, Suzhou, Jiangsu Province, China
| | - Mingde Qin
- The Stem Cell and Biomedical Material Key Laboratory of Jiangsu Province (The State Key Laboratory Incubation Base), Soochow University, Suzhou, Jiangsu Province, China
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72753
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Zhang J, Ju Y, Lu H, Xuan P, Zou Q. Accurate Identification of Cancerlectins through Hybrid Machine Learning Technology. Int J Genomics 2016; 2016:7604641. [PMID: 27478823 DOI: 10.1155/2016/7604641] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Revised: 05/24/2016] [Accepted: 06/14/2016] [Indexed: 01/03/2023] Open
Abstract
Cancerlectins are cancer-related proteins that function as lectins. They have been identified through computational identification techniques, but these techniques have sometimes failed to identify proteins because of sequence diversity among the cancerlectins. Advanced machine learning identification methods, such as support vector machine and basic sequence features (n-gram), have also been used to identify cancerlectins. In this study, various protein fingerprint features and advanced classifiers, including ensemble learning techniques, were utilized to identify this group of proteins. We improved the prediction accuracy of the original feature extraction methods and classification algorithms by more than 10% on average. Our work provides a basis for the computational identification of cancerlectins and reveals the power of hybrid machine learning techniques in computational proteomics.
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72754
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Belser JA, Eckert AM, Tumpey TM, Maines TR. Complexities in Ferret Influenza Virus Pathogenesis and Transmission Models. Microbiol Mol Biol Rev 2016; 80:733-44. [PMID: 27412880 DOI: 10.1128/MMBR.00022-16] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Ferrets are widely employed to study the pathogenicity, transmissibility, and tropism of influenza viruses. However, inherent variations in inoculation methods, sampling schemes, and experimental designs are often overlooked when contextualizing or aggregating data between laboratories, leading to potential confusion or misinterpretation of results. Here, we provide a comprehensive overview of parameters to consider when planning an experiment using ferrets, collecting data from the experiment, and placing results in context with previously performed studies. This review offers information that is of particular importance for researchers in the field who rely on ferret data but do not perform the experiments themselves. Furthermore, this review highlights the breadth of experimental designs and techniques currently available to study influenza viruses in this model, underscoring the wide heterogeneity of protocols currently used for ferret studies while demonstrating the wealth of information which can benefit risk assessments of emerging influenza viruses.
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72755
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Hadad N, Masser DR, Logan S, Wronowski B, Mangold CA, Clark N, Otalora L, Unnikrishnan A, Ford MM, Giles CB, Wren JD, Richardson A, Sonntag WE, Stanford DR, Freeman W. Absence of genomic hypomethylation or regulation of cytosine-modifying enzymes with aging in male and female mice. Epigenetics Chromatin 2016; 9:30. [PMID: 27413395 PMCID: PMC4942942 DOI: 10.1186/s13072-016-0080-6] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [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: 04/12/2016] [Accepted: 07/06/2016] [Indexed: 02/06/2023] Open
Abstract
Background Changes to the epigenome with aging, and DNA modifications in particular, have been proposed as a central regulator of the aging process, a predictor of mortality, and a contributor to the pathogenesis of age-related diseases. In the central nervous system, control of learning and memory, neurogenesis, and plasticity require changes in cytosine methylation and hydroxymethylation. Although genome-wide decreases in methylation with aging are often reported as scientific dogma, primary research reports describe decreases, increases, or lack of change in methylation and hydroxymethylation and their principle regulators, DNA methyltransferases and ten-eleven translocation dioxygenases in the hippocampus. Furthermore, existing data are limited to only male animals. Results Through examination of the hippocampus in young, adult, and old male and female mice by antibody-based, pyrosequencing, and whole-genome oxidative bisulfite sequencing methods, we provide compelling evidence that contradicts the genomic hypomethylation theory of aging. We also demonstrate that expression of DNA methyltransferases and ten-eleven translocation dioxygenases is not differentially regulated with aging or between the sexes, including the proposed cognitive aging regulator DNMT3a2. Using oxidative bisulfite sequencing that discriminates methylation from hydroxymethylation and by cytosine (CG and non-CG) context, we observe sex differences in average CG methylation and hydroxymethylation of the X chromosome, and small age-related differences in hydroxymethylation of CG island shores and shelves, and methylation of promoter regions. Conclusion These findings clarify a long-standing misconception of the epigenomic response to aging and demonstrate the need for studies of base-specific methylation and hydroxymethylation with aging in both sexes. Electronic supplementary material The online version of this article (doi:10.1186/s13072-016-0080-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Niran Hadad
- Oklahoma Center for Neuroscience, Oklahoma City, OK USA ; Reynolds Oklahoma Center on Aging, SLY-BRC 1370, 975 NE 10th St, Oklahoma City, OK 73104 USA
| | - Dustin R Masser
- Reynolds Oklahoma Center on Aging, SLY-BRC 1370, 975 NE 10th St, Oklahoma City, OK 73104 USA ; Department of Physiology, University of Oklahoma Health Sciences Center, Oklahoma City, OK USA
| | - Sreemathi Logan
- Reynolds Oklahoma Center on Aging, SLY-BRC 1370, 975 NE 10th St, Oklahoma City, OK 73104 USA
| | - Benjamin Wronowski
- Reynolds Oklahoma Center on Aging, SLY-BRC 1370, 975 NE 10th St, Oklahoma City, OK 73104 USA ; Department of Physiology, University of Oklahoma Health Sciences Center, Oklahoma City, OK USA
| | - Colleen A Mangold
- Department of Biochemistry and Molecular Biology, Pennsylvania State University, University Park, PA USA
| | - Nicholas Clark
- Reynolds Oklahoma Center on Aging, SLY-BRC 1370, 975 NE 10th St, Oklahoma City, OK 73104 USA ; Department of Physiology, University of Oklahoma Health Sciences Center, Oklahoma City, OK USA
| | - Laura Otalora
- Reynolds Oklahoma Center on Aging, SLY-BRC 1370, 975 NE 10th St, Oklahoma City, OK 73104 USA ; Department of Physiology, University of Oklahoma Health Sciences Center, Oklahoma City, OK USA
| | - Archana Unnikrishnan
- Reynolds Oklahoma Center on Aging, SLY-BRC 1370, 975 NE 10th St, Oklahoma City, OK 73104 USA
| | - Matthew M Ford
- Division of Neuroscience, Oregon National Primate Research Center, Beaverton, OR USA
| | - Cory B Giles
- Arthritis and Clinical Immunology Program, Oklahoma Medical Research Foundation, Oklahoma City, OK USA
| | - Jonathan D Wren
- Arthritis and Clinical Immunology Program, Oklahoma Medical Research Foundation, Oklahoma City, OK USA ; Department of Biochemistry and Molecular Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK USA
| | - Arlan Richardson
- Reynolds Oklahoma Center on Aging, SLY-BRC 1370, 975 NE 10th St, Oklahoma City, OK 73104 USA ; Department of Physiology, University of Oklahoma Health Sciences Center, Oklahoma City, OK USA ; Oklahoma City VA Medical Center, Oklahoma City, OK USA ; Department of Geriatric Medicine, University of Oklahoma Health Sciences Center, Oklahoma City, OK USA
| | - William E Sonntag
- Reynolds Oklahoma Center on Aging, SLY-BRC 1370, 975 NE 10th St, Oklahoma City, OK 73104 USA ; Department of Geriatric Medicine, University of Oklahoma Health Sciences Center, Oklahoma City, OK USA
| | - David R Stanford
- Reynolds Oklahoma Center on Aging, SLY-BRC 1370, 975 NE 10th St, Oklahoma City, OK 73104 USA ; Department of Physiology, University of Oklahoma Health Sciences Center, Oklahoma City, OK USA
| | - Willard Freeman
- Oklahoma Center for Neuroscience, Oklahoma City, OK USA ; Reynolds Oklahoma Center on Aging, SLY-BRC 1370, 975 NE 10th St, Oklahoma City, OK 73104 USA ; Department of Physiology, University of Oklahoma Health Sciences Center, Oklahoma City, OK USA ; Department of Geriatric Medicine, University of Oklahoma Health Sciences Center, Oklahoma City, OK USA
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72756
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Dalia S, Suleiman Y, Croy DW, Sokol L. Association of Lymphomagenesis and the Reactivation of Hepatitis B Virus in Non-Hodgkin Lymphoma. Cancer Control 2016; 22:360-5. [PMID: 26351893 DOI: 10.1177/107327481502200315] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Hepatitis B virus (HBV) has been associated with the development of non-Hodgkin lymphoma (NHL) and can be reactivated in patients being treated for NHL. METHODS Articles published between 2000 and 2015 that discussed an association between NHL and HBV, mechanisms of HBV induction of NHL, and HBV reactivation in patients with NHL were reviewed and the results compiled to help health care professionals better understand the risk of developing NHL in HBV-seropositive individuals, describe potential etiologies by which HBV infection may lead to lymphomagenesis, and highlight the recent medical literature with respect to the reactivation of HBV in the setting of NHL. RESULTS An association exists between HBV infection and NHL development. Immunosuppression due to HBV, chronic viral stimulation, and dysregulation of the immune system are possible ways in which lymphoma can develop in patients with HBV infection. All patients being treated with anti-CD20 antibodies or those from or living in HBV-endemic regions should be tested for hepatitis B surface antigen, core antibody, and surface antibody prior to initiating therapy. HBV DNA polymerase chain reaction (PCR) may also be useful in certain cases. Among HBV-seropositive patients or those with detectable HBV DNA, prophylaxis with an antiviral agent should be initiated for 1 year after NHL therapy. HBV DNA PCR monitoring should be undertaken each month during the course of treatment and every 3 months after treatment for a 1-year duration. CONCLUSIONS Health care professionals should become more comfortable treating these high-risk patients with NHL as they become more informed about potential lymphomagenesis and the reactivation of HBV.
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Affiliation(s)
- Samir Dalia
- Mercy Clinic Oncology and Hematology, Joplin, MO 64804, USA.
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72757
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Zhang J, Liu Y, Zhu Z, Yang S, Ji K, Hu S, Liu X, Yao J, Fan R, Dong C. Role of microRNA508-3p in melanogenesis by targeting microphthalmia transcription factor in melanocytes of alpaca. Animal 2017; 11:236-43. [PMID: 27405515 DOI: 10.1017/S1751731116001294] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
It has been demonstrated that microRNAs (miRNAs) play important roles in the control of melanogenesis and hair color in mammals. By comparing miRNA expression profiles between brown and white alpaca skin, we previously identified miR508-3p as a differentially expressed miRNA suggesting its potential role in melanogenesis and hair color formation. The present study was conducted to determine the role of miR508-3p in melanogenesis in alpaca melanocytes. In situ hybridization showed that miR508-3p is abundantly present in the cytoplasma of alpaca melanocytes. miR508-3p was predicted to target the gene encoding microphthalmia transcription factor (MITF) and a luciferase reporter assay indicated that miR508-3p regulates MITF expression by directly targeting its 3′UTR. Overexpression of miR508-3p in alpaca melanocytes down-regulated MITF expression both at the messenger RNA and protein level and resulted in decreased expression of key melanogenic genes including tyrosinase and tyrosinase-related protein 2. Overexpression of miR508-3p in melanocytes also resulted in decreased melanin production including total alkali-soluble melanogenesis, eumelanogenesis and pheomelanogenesis. Results support a functional role of miR508-3p in regulating melanogenesis in alpaca melanocytes by directly targeting MITF.
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72758
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Gerdtsson AS, Wingren C, Persson H, Delfani P, Nordström M, Ren H, Wen X, Ringdahl U, Borrebaeck CAK, Hao J. Plasma protein profiling in a stage defined pancreatic cancer cohort - Implications for early diagnosis. Mol Oncol 2016; 10:1305-16. [PMID: 27522951 DOI: 10.1016/j.molonc.2016.07.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2016] [Revised: 07/01/2016] [Accepted: 07/04/2016] [Indexed: 12/30/2022] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is a disease where detection preceding clinical symptoms significantly increases the life expectancy of patients. In this study, a recombinant antibody microarray platform was used to analyze 213 Chinese plasma samples from PDAC patients and normal control (NC) individuals. The cohort was stratified according to disease stage, i.e. resectable disease (stage I/II), locally advanced (stage III) and metastatic disease (stage IV). Support vector machine analysis showed that all PDAC stages could be discriminated from controls and that the accuracy increased with disease progression, from stage I to IV. Patients with stage I/II PDAC could be discriminated from NC with high accuracy based on a plasma protein signature, indicating a possibility for early diagnosis and increased detection rate of surgically resectable tumors.
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Affiliation(s)
- Anna Sandström Gerdtsson
- Department of Immunotechnology, CREATE Health Translational Cancer Center, Medicon Village bldg. 406, Lund University, SE 223 81 Lund, Sweden.
| | - Christer Wingren
- Department of Immunotechnology, CREATE Health Translational Cancer Center, Medicon Village bldg. 406, Lund University, SE 223 81 Lund, Sweden.
| | - Helena Persson
- Department of Immunotechnology, CREATE Health Translational Cancer Center, Medicon Village bldg. 406, Lund University, SE 223 81 Lund, Sweden.
| | - Payam Delfani
- Department of Immunotechnology, CREATE Health Translational Cancer Center, Medicon Village bldg. 406, Lund University, SE 223 81 Lund, Sweden.
| | | | - He Ren
- Tianjin Medical University Cancer Institute & Hospital, Huan-Hu-Xi Road, Ti-Huan-Bei, He Xi District, Tianjin 300060, PR China.
| | - Xin Wen
- Tianjin Medical University Cancer Institute & Hospital, Huan-Hu-Xi Road, Ti-Huan-Bei, He Xi District, Tianjin 300060, PR China.
| | - Ulrika Ringdahl
- Department of Immunotechnology, CREATE Health Translational Cancer Center, Medicon Village bldg. 406, Lund University, SE 223 81 Lund, Sweden.
| | - Carl A K Borrebaeck
- Department of Immunotechnology, CREATE Health Translational Cancer Center, Medicon Village bldg. 406, Lund University, SE 223 81 Lund, Sweden.
| | - Jihui Hao
- Tianjin Medical University Cancer Institute & Hospital, Huan-Hu-Xi Road, Ti-Huan-Bei, He Xi District, Tianjin 300060, PR China.
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72759
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Jiang L, Changsom D, Lerdsamran H, Wiriyarat W, Masamae W, Noisumdaeng P, Jongkaewwattana A, Puthavathana P. Immunobiological properties of influenza A (H7N9) hemagglutinin and neuraminidase proteins. Arch Virol 2016; 161:2693-704. [DOI: 10.1007/s00705-016-2968-7] [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] [Received: 04/02/2016] [Accepted: 07/03/2016] [Indexed: 12/11/2022]
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72760
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Affiliation(s)
- J Han van Krieken
- Department of Pathology, Radboud University Medical Centre, P.O. Box 9101, 6500 HB Nijmegen, The Netherlands
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72761
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Fournié G, Tripodi A, Nguyen TTT, Nguyen VT, Tran TT, Bisson A, Pfeiffer DU, Newman SH. Investigating poultry trade patterns to guide avian influenza surveillance and control: a case study in Vietnam. Sci Rep 2016; 6:29463. [PMID: 27405887 PMCID: PMC4942603 DOI: 10.1038/srep29463] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Accepted: 06/20/2016] [Indexed: 02/05/2023] Open
Abstract
Live bird markets are often the focus of surveillance activities monitoring avian influenza viruses (AIV) circulating in poultry. However, in order to ensure a high sensitivity of virus detection and effectiveness of management actions, poultry management practices features influencing AIV dynamics need to be accounted for in the design of surveillance programmes. In order to address this knowledge gap, a cross-sectional survey was conducted through interviews with 791 traders in 18 Vietnamese live bird markets. Markets greatly differed according to the sources from which poultry was obtained, and their connections to other markets through the movements of their traders. These features, which could be informed based on indicators that are easy to measure, suggest that markets could be used as sentinels for monitoring virus strains circulating in specific segments of the poultry production sector. AIV spread within markets was modelled. Due to the high turn-over of poultry, viral amplification was likely to be minimal in most of the largest markets. However, due to the large number of birds being introduced each day, and challenges related to cleaning and disinfection, environmental accumulation of viruses at markets may take place, posing a threat to the poultry production sector and to public health.
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Affiliation(s)
- Guillaume Fournié
- Veterinary Epidemiology, Economics and Public Health Group, Department of Production and Population Health, Royal Veterinary College, University of London, United Kingdom
| | - Astrid Tripodi
- Emergency Center for the Control of Transboundary Animal Diseases (ECTAD), Food and Agriculture Organization of the United Nations (FAO), Hanoi, Vietnam
| | - Thi Thanh Thuy Nguyen
- Emergency Center for the Control of Transboundary Animal Diseases (ECTAD), Food and Agriculture Organization of the United Nations (FAO), Hanoi, Vietnam
| | | | | | - Andrew Bisson
- Emergency Center for the Control of Transboundary Animal Diseases (ECTAD), Food and Agriculture Organization of the United Nations (FAO), Hanoi, Vietnam
| | - Dirk U Pfeiffer
- Veterinary Epidemiology, Economics and Public Health Group, Department of Production and Population Health, Royal Veterinary College, University of London, United Kingdom
| | - Scott H Newman
- Emergency Center for the Control of Transboundary Animal Diseases (ECTAD), Food and Agriculture Organization of the United Nations (FAO), Hanoi, Vietnam
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72762
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Hysolli E, Tanaka Y, Su J, Kim KY, Zhong T, Janknecht R, Zhou XL, Geng L, Qiu C, Pan X, Jung YW, Cheng J, Lu J, Zhong M, Weissman SM, Park IH. Regulation of the DNA Methylation Landscape in Human Somatic Cell Reprogramming by the miR-29 Family. Stem Cell Reports 2016; 7:43-54. [PMID: 27373925 PMCID: PMC4945581 DOI: 10.1016/j.stemcr.2016.05.014] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2015] [Revised: 05/31/2016] [Accepted: 05/31/2016] [Indexed: 02/05/2023] Open
Abstract
Reprogramming to pluripotency after overexpression of OCT4, SOX2, KLF4, and MYC is accompanied by global genomic and epigenomic changes. Histone modification and DNA methylation states in induced pluripotent stem cells (iPSCs) have been shown to be highly similar to embryonic stem cells (ESCs). However, epigenetic differences still exist between iPSCs and ESCs. In particular, aberrant DNA methylation states found in iPSCs are a major concern when using iPSCs in a clinical setting. Thus, it is critical to find factors that regulate DNA methylation states in reprogramming. Here, we found that the miR-29 family is an important epigenetic regulator during human somatic cell reprogramming. Our global DNA methylation and hydroxymethylation analysis shows that DNA demethylation is a major event mediated by miR-29a depletion during early reprogramming, and that iPSCs derived from miR-29a depletion are epigenetically closer to ESCs. Our findings uncover an important miRNA-based approach to generate clinically robust iPSCs.
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Affiliation(s)
- Eriona Hysolli
- Department of Genetics, Yale Stem Cell Center, Yale School of Medicine, 10 Amistad, 201B, New Haven, CT 06520, USA
| | - Yoshiaki Tanaka
- Department of Genetics, Yale Stem Cell Center, Yale School of Medicine, 10 Amistad, 201B, New Haven, CT 06520, USA
| | - Juan Su
- Department of Genetics, Yale Stem Cell Center, Yale School of Medicine, 10 Amistad, 201B, New Haven, CT 06520, USA; Department of Cell Biology, Second Military Medical University, Shanghai 200433, P.R. China
| | - Kun-Yong Kim
- Department of Genetics, Yale Stem Cell Center, Yale School of Medicine, 10 Amistad, 201B, New Haven, CT 06520, USA
| | - Tianyu Zhong
- Department of Genetics, Yale Stem Cell Center, Yale School of Medicine, 10 Amistad, 201B, New Haven, CT 06520, USA; Department of Laboratory Medicine, First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi 341000, P.R. China
| | - Ralf Janknecht
- Department of Cell Biology, University of Oklahoma Health Sciences Center, 975 Northeast, 10th Street, Oklahoma City, OK 73104, USA
| | - Xiao-Ling Zhou
- Department of Genetics, Yale Stem Cell Center, Yale School of Medicine, 10 Amistad, 201B, New Haven, CT 06520, USA; Department of Cell Biology and Genetics, Shantou University Medical College, Shantou, 515041, P.R. China
| | - Lin Geng
- Department of Genetics, Yale Stem Cell Center, Yale School of Medicine, 10 Amistad, 201B, New Haven, CT 06520, USA
| | - Caihong Qiu
- Department of Genetics, Yale Stem Cell Center, Yale School of Medicine, 10 Amistad, 201B, New Haven, CT 06520, USA
| | - Xinghua Pan
- Department of Genetics, Yale Stem Cell Center, Yale School of Medicine, 10 Amistad, 201B, New Haven, CT 06520, USA
| | - Yong-Wook Jung
- Department of Genetics, Yale Stem Cell Center, Yale School of Medicine, 10 Amistad, 201B, New Haven, CT 06520, USA; Department of Obstetrics and Gynecology, CHA Gangnam Medical Center, CHA University, Seoul 135-081, Republic of Korea
| | - Jijun Cheng
- Department of Genetics, Yale Stem Cell Center, Yale School of Medicine, 10 Amistad, 201B, New Haven, CT 06520, USA
| | - Jun Lu
- Department of Genetics, Yale Stem Cell Center, Yale School of Medicine, 10 Amistad, 201B, New Haven, CT 06520, USA
| | - Mei Zhong
- Department of Cell Biology, Yale Stem Cell Center, Yale School of Medicine, New Haven, CT 06520, USA
| | - Sherman M Weissman
- Department of Genetics, Yale Stem Cell Center, Yale School of Medicine, 10 Amistad, 201B, New Haven, CT 06520, USA
| | - In-Hyun Park
- Department of Genetics, Yale Stem Cell Center, Yale School of Medicine, 10 Amistad, 201B, New Haven, CT 06520, USA.
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72763
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Serban MC, Sahebkar A, Zanchetti A, Mikhailidis DP, Howard G, Antal D, Andrica F, Ahmed A, Aronow WS, Muntner P, Lip GYH, Graham I, Wong N, Rysz J, Banach M. Effects of Quercetin on Blood Pressure: A Systematic Review and Meta-Analysis of Randomized Controlled Trials. J Am Heart Assoc 2016; 5:JAHA.115.002713. [PMID: 27405810 PMCID: PMC5015358 DOI: 10.1161/jaha.115.002713] [Citation(s) in RCA: 172] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Background Quercetin, the most abundant dietary flavonol, has antioxidant effects in cardiovascular disease, but the evidence regarding its effects on blood pressure (BP) has not been conclusive. We assessed the impact of quercetin on BP through a systematic review and meta‐analysis of available randomized controlled trials. Methods and Results We searched PUBMED, Cochrane Library, Scopus, and EMBASE up to January 31, 2015 to identify placebo‐controlled randomized controlled trials investigating the effect of quercetin on BP. Meta‐analysis was performed using either a fixed‐effects or random‐effect model according to I2 statistic. Effect size was expressed as weighted mean difference (WMD) and 95% CI. Overall, the impact of quercetin on BP was reported in 7 trials comprising 9 treatment arms (587 patients). The results of the meta‐analysis showed significant reductions both in systolic BP (WMD: −3.04 mm Hg, 95% CI: −5.75, −0.33, P=0.028) and diastolic BP (WMD: −2.63 mm Hg, 95% CI: −3.26, −2.01, P<0.001) following supplementation with quercetin. When the studies were categorized according to the quercetin dose, there was a significant systolic BP and diastolic BP‐reducing effect in randomized controlled trials with doses ≥500 mg/day (WMD: −4.45 mm Hg, 95% CI: −7.70, −1.21, P=0.007 and −2.98 mm Hg, 95% CI: −3.64, −2.31, P<0.001, respectively), and lack of a significant effect for doses <500 mg/day (WMD: −1.59 mm Hg, 95% CI: −4.44, 1.25, P=0.273 and −0.24 mm Hg, 95% CI: −2.00, 1.52, P=0.788, respectively), but indirect comparison tests failed to significant differences between doses. Conclusions The results of the meta‐analysis showed a statistically significant effect of quercetin supplementation in the reduction of BP, possibly limited to, or greater with dosages of >500 mg/day. Further studies are necessary to investigate the clinical relevance of these results and the possibility of quercetin application as an add‐on to antihypertensive therapy.
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Affiliation(s)
- Maria-Corina Serban
- University of Alabama at Birmingham, AL University of Medicine and Pharmacy, Timisoara, Romania
| | - Amirhossein Sahebkar
- Biotechnology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Alberto Zanchetti
- Istituto Auxologico Italiano and Centro Interuniversitario di Fisiologia Clinica e Ipertensione, Università di Milano, Italy
| | - Dimitri P Mikhailidis
- Department of Clinical Biochemistry, Royal Free Campus, University College London Medical School, University College London (UCL), London, UK
| | | | - Diana Antal
- University of Medicine and Pharmacy, Timisoara, Romania
| | | | - Ali Ahmed
- Washington DC Veterans Affairs Medical Center, Washington, DC
| | | | | | - Gregory Y H Lip
- University of Birmingham Centre for Cardiovascular Sciences, City Hospital, Birmingham, UK
| | - Ian Graham
- Erasmus MC-University Medical Center Rotterdam, the Netherlands
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72764
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Magri A, Ozerov AA, Tunitskaya VL, Valuev-Elliston VT, Wahid A, Pirisi M, Simmonds P, Ivanov AV, Novikov MS, Patel AH. Exploration of acetanilide derivatives of 1-(ω-phenoxyalkyl)uracils as novel inhibitors of Hepatitis C Virus replication. Sci Rep 2016; 6:29487. [PMID: 27406141 PMCID: PMC4942610 DOI: 10.1038/srep29487] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Accepted: 06/21/2016] [Indexed: 01/16/2023] Open
Abstract
Hepatitis C Virus (HCV) is a major public health problem worldwide. While highly efficacious directly-acting antiviral agents have been developed in recent years, their high costs and relative inaccessibility make their use limited. Here, we describe new 1-(ω-phenoxyalkyl)uracils bearing acetanilide fragment in 3 position of pyrimidine ring as potential antiviral drugs against HCV. Using a combination of various biochemical assays and in vitro virus infection and replication models, we show that our compounds are able to significantly reduce viral genomic replication, independently of virus genotype, with their IC50 values in the nanomolar range. We also demonstrate that our compounds can block de novo RNA synthesis and that effect is dependent on a chemical structure of the compounds. A detailed structure-activity relationship revealed that the most active compounds were the N(3)-substituted uracil derivatives containing 6-(4-bromophenoxy)hexyl or 8-(4-bromophenoxy)octyl fragment at N(1) position.
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Affiliation(s)
- Andrea Magri
- MRC-University of Glasgow Centre for Virus Research, Glasgow, UK
- Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom
- Department of Translational Medicine, Università del Piemonte Orientale, Novara, Italy
| | - Alexander A. Ozerov
- Department of Pharmaceutical & Toxicological Chemistry, Volgograd State Medical University, Volgograd, Russia
| | - Vera L. Tunitskaya
- Engelhardt Institute of Molecular Biology, Russian Academy of Science, Moscow, Russia
| | | | - Ahmed Wahid
- MRC-University of Glasgow Centre for Virus Research, Glasgow, UK
- Department of Biochemistry, Faculty of Pharmacy, Minia, University, Minia, Egypt
| | - Mario Pirisi
- Department of Translational Medicine, Università del Piemonte Orientale, Novara, Italy
| | - Peter Simmonds
- Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom
| | - Alexander V. Ivanov
- Engelhardt Institute of Molecular Biology, Russian Academy of Science, Moscow, Russia
| | - Mikhail S. Novikov
- Department of Pharmaceutical & Toxicological Chemistry, Volgograd State Medical University, Volgograd, Russia
| | - Arvind H. Patel
- MRC-University of Glasgow Centre for Virus Research, Glasgow, UK
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72765
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Abstract
The importance of atrial fibrillation (AF) as a cause of mortality and morbidity has prompted research on its pathogenesis and treatment. Recognition of AF risk factors is essential to prevent it and reduce the risk of death. Hyperuricemia has been widely accepted to be associated with the incidence of paroxysmal or persistent AF, as well as to the risk of AF in post cardiovascular surgery patients. The possible explanations for this association have been based on their relation with either oxidative stress or inflammation. To investigate the link between hyperuricemia and AF, it is necessary to refer to hyperuricemia-induced atrial remodeling. So far, both ionic channel and structural remodeling caused by hyperuricemia might be plausible explanations for the occurrence of AF. Inhibition of xanthine oxidase and nicotinamide adenine dinucleotide phosphate (NADPH)-oxidase, or the use of antioxidants, along with serum uric acid (SUA) level reduction to prevent inflammation, might be useful. Uric acid transporters (UATs) play a key role in the regulation of intracellular uric acid concentration. Intracellular rather than serum uric acid level is considered more important for the pathogenesis of AF. Identification of UATs expressed in cells is thus important, and targeting UATs might become a potential strategy to reduce the risk of hyperuricemia-induced atrial fibrillation.
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Affiliation(s)
- Nani Maharani
- Division of Regenerative Medicine and Therapeutics, Department of Genetic Medicine and Regenerative Therapeutics, Institute of Regenerative Medicine and Biofunction, Tottori University Graduate School of Medical Science
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72766
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Zhang K, Chen C, Yang Z, He W, Liao X, Ma Q, Deng P, Lu J, Li J, Wang M, Li M, Zheng L, Zhou Z, Sun W, Wang L, Jia H, Yu Z, Zhou Z, Chen X. Sensory Response of Transplanted Astrocytes in Adult Mammalian Cortex In Vivo. Cereb Cortex 2016; 26:3690-3704. [PMID: 27405333 PMCID: PMC5004757 DOI: 10.1093/cercor/bhw213] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Accepted: 06/13/2016] [Indexed: 12/16/2022] Open
Abstract
Glial precursor transplantation provides a potential therapy for brain disorders. Before its clinical application, experimental evidence needs to indicate that engrafted glial cells are functionally incorporated into the existing circuits and become essential partners of neurons for executing fundamental brain functions. While previous experiments supporting for their functional integration have been obtained under in vitro conditions using slice preparations, in vivo evidence for such integration is still lacking. Here, we utilized in vivo two-photon Ca2+ imaging along with immunohistochemistry, fluorescent indicator labeling-based axon tracing and correlated light/electron microscopy to analyze the profiles and the functional status of glial precursor cell-derived astrocytes in adult mouse neocortex. We show that after being transplanted into somatosensory cortex, precursor-derived astrocytes are able to survive for more than a year and respond with Ca2+ signals to sensory stimulation. These sensory-evoked responses are mediated by functionally-expressed nicotinic receptors and newly-established synaptic contacts with the host cholinergic afferents. Our results provide in vivo evidence for a functional integration of transplanted astrocytes into adult mammalian neocortex, representing a proof-of-principle for sensory cortex remodeling through addition of essential neural elements. Moreover, we provide strong support for the use of glial precursor transplantation to understand glia-related neural development in vivo.
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Affiliation(s)
- Kuan Zhang
- Brain Research Center, Third Military Medical University, Chongqing 400038, China
| | - Chunhai Chen
- Department of Occupational Health, Third Military Medical University, Chongqing 400038, China
| | - Zhiqi Yang
- Brain Research Center, Third Military Medical University, Chongqing 400038, China.,Department of Neurology, Lanzhou General Hospital, Lanzhou Military Area Command, Lanzhou, Gansu 730050, China
| | - Wenjing He
- Brain Research Center, Third Military Medical University, Chongqing 400038, China
| | - Xiang Liao
- Brain Research Center, Third Military Medical University, Chongqing 400038, China
| | - Qinlong Ma
- Department of Occupational Health, Third Military Medical University, Chongqing 400038, China
| | - Ping Deng
- Department of Occupational Health, Third Military Medical University, Chongqing 400038, China
| | - Jian Lu
- Brain Research Center, Third Military Medical University, Chongqing 400038, China
| | - Jingcheng Li
- Brain Research Center, Third Military Medical University, Chongqing 400038, China
| | - Meng Wang
- Brain Research Center, Third Military Medical University, Chongqing 400038, China
| | - Mingli Li
- State Key Laboratory of Biomembrane and Membrane Biotechnology, Institute of Molecular Medicine, Peking-Tsinghua Center for Life Sciences, PKU-IDG/McGovern Institute for Brain Research, Peking University, Beijing 100871, China
| | - Lianghong Zheng
- State Key Laboratory of Biomembrane and Membrane Biotechnology, Institute of Molecular Medicine, Peking-Tsinghua Center for Life Sciences, PKU-IDG/McGovern Institute for Brain Research, Peking University, Beijing 100871, China
| | - Zhuan Zhou
- State Key Laboratory of Biomembrane and Membrane Biotechnology, Institute of Molecular Medicine, Peking-Tsinghua Center for Life Sciences, PKU-IDG/McGovern Institute for Brain Research, Peking University, Beijing 100871, China
| | - Wei Sun
- Brain Research Center, Third Military Medical University, Chongqing 400038, China
| | - Liting Wang
- Brain Research Center, Third Military Medical University, Chongqing 400038, China
| | - Hongbo Jia
- Brain Research Instrument Innovation Center, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou 215163, China
| | - Zhengping Yu
- Department of Occupational Health, Third Military Medical University, Chongqing 400038, China
| | - Zhou Zhou
- Department of Occupational Health, Third Military Medical University, Chongqing 400038, China
| | - Xiaowei Chen
- Brain Research Center, Third Military Medical University, Chongqing 400038, China.,CAS Center for Excellence in Brain Science and Intelligence Technology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
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72767
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Fu M, Zou C, Pan L, Liang W, Qian H, Xu W, Jiang P, Zhang X. Long noncoding RNAs in digestive system cancers: Functional roles, molecular mechanisms, and clinical implications (Review). Oncol Rep 2016; 36:1207-18. [PMID: 27431376 DOI: 10.3892/or.2016.4929] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2016] [Accepted: 07/04/2016] [Indexed: 01/24/2023] Open
Abstract
Long noncoding RNAs (lncRNAs) are emerging as new players in various diseases including cancer. LncRNAs have been shown to play multifaceted roles in the development, progression, and metastasis of cancer. In this review, we highlight the lncRNAs that are critically involved in the pathogenesis of digestive system cancers (DSCs). We summarize the roles of the lncRNAs in DSCs and the underlying mechanisms responsible for their functions. The DSC-associated lncRNAs interact with a wide spectrum of molecules to regulate gene expression at transcriptional, post-transcriptional, and translational levels. We also provide new insights into the clinical significance of these lncRNAs, which are found to be closely associated with the aggressiveness of DSCs and could predict the prognosis of DSC patients. Moreover, lncRNAs have been suggested as promising therapeutic targets in DSCs. Therefore, better understanding of the functional roles of lncRNAs will provide new biomarkers for DSC diagnosis, prognosis, and therapy.
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Affiliation(s)
- Min Fu
- Department of General Surgery, The Affiliated People's Hospital of Jiangsu University, Zhenjiang, Jiangsu 212002, P.R. China
| | - Chen Zou
- Department of General Surgery, The Affiliated People's Hospital of Jiangsu University, Zhenjiang, Jiangsu 212002, P.R. China
| | - Lei Pan
- Department of General Surgery, The Affiliated People's Hospital of Jiangsu University, Zhenjiang, Jiangsu 212002, P.R. China
| | - Wei Liang
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, P.R. China
| | - Hui Qian
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, P.R. China
| | - Wenrong Xu
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, P.R. China
| | - Pengcheng Jiang
- Department of General Surgery, The Affiliated People's Hospital of Jiangsu University, Zhenjiang, Jiangsu 212002, P.R. China
| | - Xu Zhang
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, P.R. China
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72768
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Liu Y, Xiong Z, Beasley A, D'Amico T, Chen XL. Personalized and targeted therapy of esophageal squamous cell carcinoma: an update. Ann N Y Acad Sci 2016; 1381:66-73. [PMID: 27399176 DOI: 10.1111/nyas.13144] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Revised: 05/16/2016] [Accepted: 05/23/2016] [Indexed: 12/20/2022]
Abstract
Esophageal squamous cell carcinoma (ESCC) is a deadly disease that requires extensive research. In this review, we update recent progress in the research area of targeted therapy for ESCC. SOX2 and its associated proteins (e.g., ΔNP63α), which regulate lineage survival of ESCC cells, are proposed as therapeutic targets. It is believed that targeting the lineage-survival mechanism may be more effective than targeting other mechanisms. With the advent of a new era of personalized targeted therapy, there is a need to move from the tumor-centric model into an organismic model.
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Affiliation(s)
- Yongjing Liu
- Department of Cardiothoracic Surgery, 105th Hospital of PLA, Hefei, Anhui Province, China.,Division of Thoracic Surgery, Duke University Medical Center, Durham, North Carolina.,Cancer Research Program, Julius L. Chambers Biomedical Biotechnology Research Institute, North Carolina Central University, Durham, North Carolina
| | - Zhaohui Xiong
- Cancer Research Program, Julius L. Chambers Biomedical Biotechnology Research Institute, North Carolina Central University, Durham, North Carolina
| | - Andrea Beasley
- Cancer Research Program, Julius L. Chambers Biomedical Biotechnology Research Institute, North Carolina Central University, Durham, North Carolina
| | - Thomas D'Amico
- Division of Thoracic Surgery, Duke University Medical Center, Durham, North Carolina
| | - Xiaoxin Luke Chen
- Cancer Research Program, Julius L. Chambers Biomedical Biotechnology Research Institute, North Carolina Central University, Durham, North Carolina. .,Division of Gastroenterology and Hepatology, Department of Medicine, Center for Esophageal Disease and Swallowing, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina.
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72769
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Onelöv L, Gustafsson E, Grönlund E, Andersson H, Hellberg G, Järnberg I, Schurow S, Söderblom L, Antovic JP. Autoverification of routine coagulation assays in a multi-center laboratory. Scandinavian Journal of Clinical and Laboratory Investigation 2016; 76:500-2. [DOI: 10.1080/00365513.2016.1200135] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Liselotte Onelöv
- Department of Coagulation Research, Institute for Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Elisabeth Gustafsson
- Department of Coagulation Research, Institute for Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Eva Grönlund
- Department of Coagulation Research, Institute for Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Helena Andersson
- Department of Coagulation Research, Institute for Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Gisela Hellberg
- Department of Coagulation Research, Institute for Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Ingela Järnberg
- Department of Coagulation Research, Institute for Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Sara Schurow
- Department of Coagulation Research, Institute for Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Lisbeth Söderblom
- Department of Coagulation Research, Institute for Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Jovan P. Antovic
- Department of Coagulation Research, Institute for Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
- Department of Clinical Chemistry, Karolinska University Hospital, Stockholm, Sweden
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72770
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Borska S, Pedziwiatr M, Danielewicz M, Nowinska K, Pula B, Drag-Zalesinska M, Olbromski M, Gomulkiewicz A, Dziegiel P. Classical and atypical resistance of cancer cells as a target for resveratrol. Oncol Rep 2016; 36:1562-8. [PMID: 27431533 DOI: 10.3892/or.2016.4930] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Accepted: 03/22/2016] [Indexed: 11/06/2022] Open
Abstract
The phenomenon of cancer cell resistance to chemotherapeutics is the main cause of insensitivity to anticancer therapy. Thus, the current challenge remains searching for substances sensitising the activity of cytostatic drugs. In this respect, resveratrol is a very promising therapeutic agent. It has pleiotropic effect on cancer cells, which can play a key role in numerous resistance mechanisms, both classical and atypical. The purpose of the present study was to assess the effect of resveratrol on the inhibition of human pancreatic cancer cell proliferation and on the level of cytostatic resistance-associated proteins. The study was performed on human pancreatic cancer cell lines EPP85-181P (control), EPP85-181RDB (daunorubicin resistance) and EPP85-181PRNOV (mitoxantrone resistance). The effect of resveratrol on the viability and proliferation of the studied cell lines was evaluated by SRB assay, whereas cell cycle arrest and cytostatic accumulation by FACS. Western blot analysis was used to determine the level of P-glycoprotein, topoisomerase II α and β and immunofluorescence technique to visualise the proteins in the cells. Resveratrol inhibited proliferation of all studied cell lines. Phase-specific cell cycle arrest depended on the type of cancer cells. Resveratrol decreased the level and activity of P-gp in EPP85-181RDB cells. In EPP85-181PRNOV cells, expression of both TopoII isoforms increased in a statistically significant manner. The results of in vitro studies support the possibility of potential use of resveratrol in breaking cancer cell resistance to chemotherapeutic drugs.
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Affiliation(s)
- Sylwia Borska
- Department of Histology and Embryology, Medical University, 50-368 Wroclaw, Poland
| | - Monika Pedziwiatr
- Department of Histology and Embryology, Medical University, 50-368 Wroclaw, Poland
| | - Monika Danielewicz
- Department of Histology and Embryology, Medical University, 50-368 Wroclaw, Poland
| | - Katarzyna Nowinska
- Department of Histology and Embryology, Medical University, 50-368 Wroclaw, Poland
| | - Bartosz Pula
- Department of Histology and Embryology, Medical University, 50-368 Wroclaw, Poland
| | | | - Mateusz Olbromski
- Department of Histology and Embryology, Medical University, 50-368 Wroclaw, Poland
| | | | - Piotr Dziegiel
- Department of Histology and Embryology, Medical University, 50-368 Wroclaw, Poland
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72771
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Ma D, Zhong S, Liu X, Mai H, Mai G, Xu C, Zhou F. CD3D and PRKCQ work together to discriminate between B-cell and T-cell acute lymphoblastic leukemia. Comput Biol Med 2016; 77:16-22. [PMID: 27494091 DOI: 10.1016/j.compbiomed.2016.07.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Revised: 07/01/2016] [Accepted: 07/09/2016] [Indexed: 11/15/2022]
Abstract
Different therapeutic methods have been developed for the B-cell and T-cell subtypes of acute lymphoblastic leukemia (ALL). The identification of molecular biomarkers that can accurately discriminate between B-cell and T-cell ALLs will facilitate the quick determination of therapeutic plans, as well as reveal the intrinsic mechanisms underlining the two different ALL subtypes. This study computationally screened the high-throughput transcriptome dataset for multiple candidate biomarkers and verified their discrimination abilities in an independent sample set using quantitative real-time polymerase chain reaction (PCR) technology. Both technologies suggest that the two genes CD3D and PKRCQ together provided a good model for classification of B-cell and T-cell ALLs, whereas the individual genes did not show consistent discrimination between the two ALL subtypes. Supplementary material is available at http://healthinformaticslab.org/supp/.
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Affiliation(s)
- Dongli Ma
- Shenzhen Children's Hospital, Shenzhen, Guangdong 518038, China; Shenzhen Children's Hospital, Shenzhen Engineering Laboratory for High-throughput Gene Sequencing of Pathogens, Shenzhen, Guangdong 518038, China.
| | - Shan Zhong
- Shenzhen Children's Hospital, Shenzhen, Guangdong 518038, China
| | - Xiaorong Liu
- Shenzhen Children's Hospital, Shenzhen, Guangdong 518038, China; Shenzhen Children's Hospital, Shenzhen Engineering Laboratory for High-throughput Gene Sequencing of Pathogens, Shenzhen, Guangdong 518038, China
| | - Huirong Mai
- Shenzhen Children's Hospital, Shenzhen, Guangdong 518038, China
| | - Guoqin Mai
- Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong 518055, China
| | - Cheng Xu
- College of Software, Jilin University, Changchun, Jilin 130012, China
| | - Fengfeng Zhou
- College of Computer Science and Technology, Jilin University, Changchun, Jilin 130012, China; Key Laboratory of Symbolic Computation and Knowledge Engineering of Ministry of Education, Jilin University, Changchun, Jilin 130012, China.
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72772
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Huang C, Li R, Zhang Y, Gong J. Amarogentin Induces Apoptosis of Liver Cancer Cells via Upregulation of p53 and Downregulation of Human Telomerase Reverse Transcriptase in Mice. Technol Cancer Res Treat 2016; 16:546-558. [PMID: 27402632 DOI: 10.1177/1533034616657976] [Citation(s) in RCA: 10] [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: 12/13/2022] Open
Abstract
BACKGROUND AND OBJECTIVE Amarogentin has been reported to have a preventive effect on liver cancer via inducing cancer cell apoptosis. We attempted to elucidate the roles of p53-associated apoptosis pathways in the chemopreventive mechanism of amarogentin. The findings of this study will facilitate the development of a novel supplementary strategy for the treatment of liver cancer. MATERIALS AND METHODS The purity of amarogentin was assessed by high-performance liquid chromatography. The inhibitory ratios of the liver cell lines were determined using a Cell Counting Kit-8 following treatment with a gradient concentration of amarogentin. Cell apoptosis was detected by flow cytometry using annexin V-fluorescein isothiocyanate/propidium iodide kits. The gene and protein expression of p53-associated molecules, such as Akt, human telomerase reverse transcriptase, RelA, and p38, was detected by real-time quantitative polymerase chain reaction, Western blotting, and immunohistochemical staining in liver cancer cells and mouse tumor tissues after treatment with amarogentin. RESULTS The inhibitory effect of amarogentin on cell proliferation was more obvious in liver cancer cells, and amarogentin was more likely to induce the apoptosis of liver cancer cells than that of normal liver cells. The gene and protein expression levels of Akt, RelA, and human telomerase reverse transcriptase were markedly higher in the control group than in the preventive group and treatment groups. Only the expression of human telomerase reverse transcriptase was downregulated, accompanied by the upregulation of p53. CONCLUSION The results of our study suggest that amarogentin promotes apoptosis of liver cancer cells by the upregulation of p53 and downregulation of human telomerase reverse transcriptase and prevents the malignant transformation of these cells.
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Affiliation(s)
- Chun Huang
- 1 Chongqing Key Laboratory of Hepatobiliary Surgery, Department of Hepatobiliary Surgery, Second Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China.,2 Division of Basic Medical Science, Chongqing Three Gorges Medical College, Chongqing, Wanzhou, People's Republic of China
| | - Runqin Li
- 2 Division of Basic Medical Science, Chongqing Three Gorges Medical College, Chongqing, Wanzhou, People's Republic of China.,3 Department of Histology and Embryology, Chongqing Medical University, Chongqing, People's Republic of China
| | - Yinglin Zhang
- 4 Department of Hepatobiliary Surgery, The Third Hospital of Mianyang, Mianyang, Sichuan, People's Republic of China
| | - Jianping Gong
- 1 Chongqing Key Laboratory of Hepatobiliary Surgery, Department of Hepatobiliary Surgery, Second Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China
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72773
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Zhuo Z, Wang A, Yu H. Metformin targeting autophagy overcomes progesterone resistance in endometrial carcinoma. Arch Gynecol Obstet 2016; 294:1055-61. [PMID: 27402506 DOI: 10.1007/s00404-016-4148-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2015] [Accepted: 07/06/2016] [Indexed: 10/21/2022]
Abstract
PURPOSE Metformin is the most prescribed anti-diabetic medication worldwide because of its proven efficacy and limited side effects. In this study, the significant anticancer effect of metformin was investigated in both endometrial carcinoma and progesterone-resistant endometrial carcinoma cells. METHODS We tested the growth inhibition assay using MTT cell proliferation, cell cycle assay, apoptosis assessment with flow cytometry using propidium iodide and Annexin V, and autophagy protein expression with western blot analysis. RESULTS Metformin inhibited the growth of cancer cells with different concentrations in a dose- and time-dependent manner. Moreover, the inhibition properties observed as a function of increased concentrations of metformin were markedly augmented when the medication was administered in the progesterone-resistant Ishikawa cells, even with a dose as low as 10 mM. The early and late phases of apoptosis were enhanced in the metformin-treated tumour cells that were analyzed. For the Ishikawa cells, the expression of p-AMPK, LC-3, and beclin1 was upregulated after treatment, whereas the AMPK levels were not modulated. Furthermore, for the Ishikawa-PR cells, the protein levels were similarly upregulated. Finally, we observed that the three proteins showed much more variability in Ishikawa-PR cells than in Ishikawa cells. CONCLUSION The application of metformin to target autophagy in endometrial cancer cells provides a new potential treatment for progesterone-resistant endometrial carcinoma.
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72774
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Okello S, Churchill C, Owori R, Nasasira B, Tumuhimbise C, Abonga CL, Mutiibwa D, Christiani DC, Corey KE. Population attributable fraction of Esophageal squamous cell carcinoma due to smoking and alcohol in Uganda. BMC Cancer 2016; 16:446. [PMID: 27400987 PMCID: PMC4940693 DOI: 10.1186/s12885-016-2492-x] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2016] [Accepted: 06/28/2016] [Indexed: 12/15/2022] Open
Abstract
Background Despite the high rates and regional variation of esophageal squamous cell carcinoma (ESCC) in East Africa, the contributions of smoking and alcohol to the ESCC burden in the general population are unknown. Methods We conducted a case-control study of patients presenting for upper gastrointestinal endoscopic examination at Mbarara Regional Referral Hospital, Uganda. Sociodemographic data including smoking and alcohol intake were collected prior to endoscopy. Cases were those with histological diagnosis of ESCC and controls were participants with normal endoscopic examination and gastritis/duodentitis or normal histology. We used odds ratios associated with ESCC risk to determine the population attributable fractions for smoking, alcohol use, and a combination of smoking and alcohol use among adults aged 30 years or greater who underwent upper gastrointestinal endoscopy. Results Our study consisted of 67 cases and 142 controls. Median age was 51 years (IQR 40–64); and participants were predominantly male (59 %). Dysphagia and/or odynophagia as indications for endoscopy were significantly more in cases compared to controls (72 % vs 6 %, p < 0.0001). Male gender and increasing age were statistically associated with ESCC. In the unadjusted models, the population attributable fraction of ESCC due to male gender was 55 %, female gender - 49 %, smoking 20 %, alcohol 9 % and a combination of alcohol & smoking 15 %. After adjusting for gender and age, the population attributable fraction of ESCC due to smoking, alcohol intake and a combination of alcohol & smoking were 16, 10, and 13 % respectively. Conclusion In this population, 13 % of esophageal squamous cell carcinoma cases would be avoided if smoking and alcohol use were discontinued. These results suggest that other important risk factors for ESCC in southwestern Uganda remain unknown.
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Affiliation(s)
- Samson Okello
- Department of Internal Medicine, Mbarara University of Science and Technology, P. O Box 1410, Mbarara, Uganda. .,Department of Epidemiology, Harvard T.H Chan School of Public Health, Boston, MA, USA.
| | - Cristina Churchill
- Department of Medicine, University of Virginia, Charlottesville, VA, USA
| | | | - Benson Nasasira
- Department of Internal Medicine, Mbarara University of Science and Technology, P. O Box 1410, Mbarara, Uganda
| | - Christine Tumuhimbise
- Department of Internal Medicine, Mbarara University of Science and Technology, P. O Box 1410, Mbarara, Uganda
| | - Charles Lagoro Abonga
- Department of Internal Medicine, Mbarara University of Science and Technology, P. O Box 1410, Mbarara, Uganda
| | - David Mutiibwa
- Department of Surgery, Mbarara University of Science and Technology, Mbarara, Uganda
| | - David C Christiani
- Department of Environmental Health, Harvard T.H Chan School of Public Health, Boston, MA, USA.,Harvard Medical School, Massachusetts General Hospital, Boston, USA
| | - Kathleen E Corey
- Harvard Medical School, Massachusetts General Hospital, Boston, USA.,Department of Medicine, Massachusetts General Hospital, Boston, MA, USA
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72775
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Yu M, Wang Q, Qi W, Zhang K, Liu J, Tao P, Ge S, Liao M, Ning Z. Expression of inflammation-related genes in the lung of BALB/c mice response to H7N9 influenza A virus with different pathogenicity. Med Microbiol Immunol 2016; 205:501-9. [PMID: 27401907 PMCID: PMC7101963 DOI: 10.1007/s00430-016-0466-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Accepted: 07/01/2016] [Indexed: 11/29/2022]
Abstract
H7N9 influenza A virus (IAV)-infected human cases are increasing and reported over 200 mortalities since its first emergence in 2013. Host inflammatory response contributes to the clearance of influenza virus; meanwhile, the induced "cytokine storm" also leads to pathological lesions. However, what inflammation-related response of the host for H7N9 influenza A virus infection to survival from injures of exuberant cytokine release is still obscure. In this research, expression pattern and histological distribution of inflammation-related genes, RIP3, NLRP3, IL-1β, TNF-α, Slit2 and Robo4 in the lung of BALB/c mice infected with two H7N9 IAV strains with only a PB2 residue 627 difference were investigated, as well as the histopathological injury of the lung. Results showed that significantly higher expression level of NLRP3, RIP3, IL-1β and TNF-α in H7N9-infected groups compared with the control would play a key role in driving lung pathological lesion. While the expression level of Slit2 and Robo4 in H7N9 rVK627E group had significantly increased trend than VK627 which might be the main factor to inhibit the interstitial pneumonia and infiltration. Also, H7N9 induced the histopathological changes in the lung of infected mice, and RIP3, NLRP3, IL-1β, TNF-α, Slit2 and Robo4 showed cell-specific distribution in the lung. The results will provide basic data for further research on the mechanism of inflammatory response and understanding of the role of site 627 in PB2 in H7N9 IAVs infection. In addition, enhancing the resilience of the host vascular system to the inflammatory response by regulation of Slit2-Robo4 signaling pathway might provide a novel strategy for H7N9 IAVs infection.
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Affiliation(s)
- Meng Yu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, People's Republic of China
| | - Qingnan Wang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, People's Republic of China
| | - Wenbao Qi
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, People's Republic of China
| | - Kaizhao Zhang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, People's Republic of China
| | - Jianxin Liu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, People's Republic of China
| | - Pan Tao
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, People's Republic of China
| | - Shikun Ge
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, People's Republic of China
| | - Ming Liao
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, People's Republic of China.
| | - Zhangyong Ning
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, People's Republic of China.
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72776
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Zhu L, Guo Q, Jin S, Feng H, Zhuang H, Liu C, Tan M, Liu J, Li X, Lin B. Analysis of the gene expression profile in response to human epididymis protein 4 in epithelial ovarian cancer cells. Oncol Rep 2016; 36:1592-604. [PMID: 27430660 DOI: 10.3892/or.2016.4926] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2016] [Accepted: 03/30/2016] [Indexed: 11/05/2022] Open
Abstract
Currently, there are emerging multiple studies on human epididymis protein 4 (HE4) in ovarian cancer. HE4 possesses higher sensitivity and specificity than CA125 in the confirmative early diagnosis for ovarian cancer. Although much attention has been given to explore its clinical application, research of the basic mechanisms of HE4 in ovarian cancer are still unclear. In the present study, we provide fundamental data to identify full-scale differentially expressed genes (DEGs) in response to HE4 by use of human whole-genome microarrays in human epithelial ovarian cancer cell line ES-2 following overexpression and silencing of HE4. We found that a total of 717 genes were upregulated and 898 genes were downregulated in the HE4-overexpressing cells vs. the HE4-Mock cells, and 166 genes were upregulated and 285 were downregulated in the HE4-silenced cells vs. the HE4-Mock cells. An overlap of 16 genes consistently upregulated and 8 genes downregulated in response to HE4 were noted. These DEGs were involved in MAPK, steroid biosynthesis, cell cycle, the p53 hypoxia pathway, and focal adhesion pathways. Interaction network analysis predicted that the genes participated in the regulatory connection. Highly differential expression of the FOXA2, SERPIND1, BDKRD1 and IL1A genes was verified by quantitative real-time PCR in 4 cell line samples. Finally, SERPIND1 (HCII) was validated at the protein level by immunohistochemistry in 107 paraffin-embedded ovarian tissues. We found that SERPIND1 may act as a potential oncogene in the development of ovarian cancer. The present study displayed the most fundamental and full-scale data to show DEGs in response to HE4. These identified genes may provide a theoretical basis for investigations of the underlying molecular mechanism of HE4 in ovarian cancer.
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Affiliation(s)
- Liancheng Zhu
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Qian Guo
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Shan Jin
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Huilin Feng
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Huiyu Zhuang
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Cong Liu
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Mingzi Tan
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Juanjuan Liu
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Xiao Li
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Bei Lin
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
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72777
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Cheng X, Wei B, Sun L, Hu X, Liang J, Chen Y. Astragaloside I Stimulates Osteoblast Differentiation Through the Wnt/β-catenin Signaling Pathway. Phytother Res 2016; 30:1680-1688. [PMID: 27397144 DOI: 10.1002/ptr.5674] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Revised: 05/10/2016] [Accepted: 06/04/2016] [Indexed: 11/10/2022]
Abstract
Astragaloside I (As-I), one of the main active ingredients in Astragalus membranaceus, is believed to have osteogenic properties, but this hypothesis has not been investigated in detail. In the present work, the As-I-induced osteogenic effects and its underlying mechanism were studied in MC3T3-E1 cells. The results indicated that the cellular levels of ALP and extracellular matrix calcium increased in a dose-dependent manner by As-I. To clarify the mechanisms involved in this process, the effect of As-I on the key osteogenic-related genes was investigated. We found that As-I stimulated the expression of β-catenin and Runx2 in MC3T3-E1 cells, which play central roles in the Wnt/β-catenin signaling pathway, suggesting that As-I could promote osteoblastic differentiation by regulating the Wnt/β-catenin signaling pathway. Moreover, the osteogenic effect of As-I could be inhibited by DKK-1, which is the classical inhibitor of Wnt/β-catenin-signaling pathway. Furthermore, As-I also increased BMP-2, BGP and OPG/RANKL expression, which are also activated by Wnt/β-catenin signaling pathway. Taken together, our findings show that As-I stimulates osteoblast differentiation through the Wnt/β-catenin signaling pathway, which also activates the BMP pathway and RANK pathway, thus highlighting the As-I for pharmaceutical and medicinal applications such as treating bone disease. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Xun Cheng
- Hubei Province Key Laboratory of Biotechnology of Chinese Traditional Medicine, Collaborative Innovation Center for Green Transformation of Bio-Resources, Hubei University, Wuhan, 430062, China
| | - Biaofang Wei
- Department of Orthopaedic, Linyi People's Hospital, Science and Technology Develop Project of Shandong province, Linyi, 276000, China
| | - Lijuan Sun
- Hubei Province Key Laboratory of Biotechnology of Chinese Traditional Medicine, Collaborative Innovation Center for Green Transformation of Bio-Resources, Hubei University, Wuhan, 430062, China.
| | - Xiaofang Hu
- Hubei Province Key Laboratory of Biotechnology of Chinese Traditional Medicine, Collaborative Innovation Center for Green Transformation of Bio-Resources, Hubei University, Wuhan, 430062, China
| | - Jichao Liang
- Hubei Province Key Laboratory of Biotechnology of Chinese Traditional Medicine, Collaborative Innovation Center for Green Transformation of Bio-Resources, Hubei University, Wuhan, 430062, China
| | - Yong Chen
- Hubei Province Key Laboratory of Biotechnology of Chinese Traditional Medicine, Collaborative Innovation Center for Green Transformation of Bio-Resources, Hubei University, Wuhan, 430062, China.
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72778
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Aktop S, Emekli-Alturfan E, Gönül O, Göçmen G, Garip H, Yarat A, Göker K. Effect of Ankaferd Blood Stopper on Skin Superoxide Dismutase and Catalase Activities in Warfarin-Treated Rats. Clin Appl Thromb Hemost 2016; 23:168-174. [PMID: 26354714 DOI: 10.1177/1076029615604049] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
AIM Ankaferd Blood Stopper (ABS) is a new promising local hemostatic agent, and its mechanism on hemostasis has been shown by many studies. However, the effects of ABS on skin superoxide dismutase (SOD) and catalase (CAT) activities have not been investigated before. The aim of this study was to evaluate the effects of this new generation local hemostatic agent on warfarin-treated rats focusing on its the antioxidant potential in short-term soft tissue healing. METHODS Twelve systemically warfarin treated (warfarin group) and 12 none treated Wistar Albino rats (control group) were selected for the trial. Rats in the warfarin group were treated intraperitonally with 0.1 mg/kg warfarin, and rats in the control group were given 1 mL/kg saline 3 days earlier to surgical procedure and continued until killing. All rats had incisions on dorsal dermal tissue, which was applied ABS or no hemostatic agent before suturing. Six of each group were killed on day 4, and the other 6 were killed on day 8. Blood and skin samples were taken. Prothrombin time (PT) in blood samples, CAT, and SOD activities in skin samples were determined. RESULTS Warfarin treatment dose was found to be convenient and warfarin treatment increased the PT levels as expected. Warfarin treatment decreased CAT activity significantly compared to the control group. The ABS treatment significantly increased SOD activities in the warfarin group at the end of the eighth day. CONCLUSION Ankaferd Blood Stopper acted positively in short-term tissue healing by increasing SOD activity in warfarin-treated rats. Therefore, ABS may be suggeted as a promoting factor in tissue healing.
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Affiliation(s)
- Sertaç Aktop
- 1 Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Marmara University, Istanbul, Turkey
| | - Ebru Emekli-Alturfan
- 2 Department of Biochemistry, Faculty of Dentistry, Marmara University, Istanbul, Turkey
| | - Onur Gönül
- 1 Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Marmara University, Istanbul, Turkey
| | - Gökhan Göçmen
- 1 Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Marmara University, Istanbul, Turkey
| | - Hasan Garip
- 1 Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Marmara University, Istanbul, Turkey
| | - Ayşen Yarat
- 2 Department of Biochemistry, Faculty of Dentistry, Marmara University, Istanbul, Turkey
| | - Kamil Göker
- 1 Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Marmara University, Istanbul, Turkey
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72779
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Bairwa SC, Parajuli N, Dyck JRB. The role of AMPK in cardiomyocyte health and survival. Biochim Biophys Acta Mol Basis Dis 2016; 1862:2199-2210. [PMID: 27412473 DOI: 10.1016/j.bbadis.2016.07.001] [Citation(s) in RCA: 93] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Revised: 07/05/2016] [Accepted: 07/05/2016] [Indexed: 01/09/2023]
Abstract
Cellular energy homeostasis is a fundamental process that governs the overall health of the cell and is paramount to cell survival. Central to this is the control of ATP generation and utilization, which is regulated by a complex myriad of enzymatic reactions controlling cellular metabolism. In the cardiomyocyte, ATP generated from substrate catabolism is used for numerous cellular processes including maintaining ionic homeostasis, cell repair, protein synthesis and turnover, organelle turnover, and contractile function. In many instances, cardiovascular disease is associated with impaired cardiac energetics and thus the signalling that regulates pathways involved in cardiomyocyte metabolism may be potential targets for pharmacotherapy designed to help treat cardiovascular disease. An important regulator of cardiomyocyte energy homeostasis is adenosine monophosphate-activated protein kinase (AMPK). AMPK is a serine-threonine kinase that functions primarily as a metabolic sensor to coordinate anabolic and catabolic activities in the cell via the phosphorylation of multiple proteins involved in metabolic pathways. In addition to the direct role that AMPK plays in the regulation of cardiomyocyte metabolism, AMPK can also either directly or indirectly influence other cellular processes such as regulating mitochondrial function, post-translation acetylation, autophagy, mitophagy, endoplasmic reticulum stress, and apoptosis. Thus, AMPK is implicated in the control of a wide variety of cellular processes that can influence cardiomyocyte health and survival. In this review, we will discuss the important role that AMPK plays in regulating cardiac metabolism, as well as the additional cellular processes that may contribute to cardiomyocyte function and survival in the healthy and the diseased heart. This article is part of a Special Issue entitled: The role of post-translational protein modifications on heart and vascular metabolism edited by Jason R.B. Dyck & Jan. F.C. Glatz.
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Affiliation(s)
- Suresh C Bairwa
- Department of Medicine, Faculty of Medicine and Dentistry, Cardiovascular Research Centre, University of Alberta, Edmonton, Alberta, Canada
| | - Nirmal Parajuli
- Department of Medicine, Faculty of Medicine and Dentistry, Cardiovascular Research Centre, University of Alberta, Edmonton, Alberta, Canada
| | - Jason R B Dyck
- Department of Medicine, Faculty of Medicine and Dentistry, Cardiovascular Research Centre, University of Alberta, Edmonton, Alberta, Canada; Department of Pediatrics, Faculty of Medicine and Dentistry, Cardiovascular Research Centre, University of Alberta, Edmonton, Alberta, Canada.
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72780
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Agostini M, Fasolato C. When, where and how? Focus on neuronal calcium dysfunctions in Alzheimer's Disease. Cell Calcium 2016; 60:289-298. [PMID: 27451385 DOI: 10.1016/j.ceca.2016.06.008] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Revised: 06/27/2016] [Accepted: 06/28/2016] [Indexed: 02/06/2023]
Abstract
Alzheimer's disease (AD), since its characterization as a precise form of dementia with its own pathological hallmarks, has captured scientists' attention because of its complexity. The last 30 years have been filled with discoveries regarding the elusive aetiology of this disease and, thanks to advances in molecular biology and live imaging techniques, we now know that an important role is played by calcium (Ca2+). Ca2+, as ubiquitous second messenger, regulates a vast variety of cellular processes, from neuronal excitation and communication, to muscle fibre contraction and hormone secretion, with its action spanning a temporal scale that goes from microseconds to hours. It is therefore very challenging to conceive a single hypothesis that can integrate the numerous findings on this issue with those coming from the classical fields of AD research such as amyloid-beta (Aβ) and tau pathology. In this contribution, we will focus our attention on the Ca2+ hypothesis of AD, dissecting it, as much as possible, in its subcellular localization, where the Ca2+ signal meets its specificity. We will also follow the temporal evolution of the Ca2+ hypothesis, providing some of the most updated discoveries. Whenever possible, we will link the findings regarding Ca2+ dysfunction to the other players involved in AD pathogenesis, hoping to provide a crossover body of evidence, useful to amplify the knowledge that will lead towards the discovery of an effective therapy.
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Affiliation(s)
- Mario Agostini
- Department of Biomedical Sciences, University of Padua, Italy.
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72781
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72782
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Sun Y, Zhu H, Song J, Jiang Y, Ouyang H, Huang R, Zhang G, Fan X, Tao R, Jiang J, Niu H. Upregulation of Leukocytic Syncytin-1 in Acute Myeloid Leukemia Patients. Med Sci Monit 2016; 22:2392-403. [PMID: 27393911 PMCID: PMC4941896 DOI: 10.12659/msm.899303] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Background Syncytin-1, a cell membrane-localizing fusogen, is abnormally expressed in several cancers, including endometrial cancer, breast cancer, and leukemia. Although abnormal syncytin-1 expression has been detected in two-thirds of leukemia blood samples, its expression profile in acute leukemia patients has not yet been analyzed. Material/Methods Bone marrow samples from 50 acute myelogenous leukemia (AML) cases and 14 B-cell acute lymphocytic leukemia (B-cell ALL) patients were subjected to flow cytometry to assess leukocyte type distributions and leukocytic syncytin-1 surface expression. RT-PCR was applied to assess leukocytic syncytin-1 mRNA expression. Statistical analysis was applied to compare syncytin-1 expression between AML and B-cell ALL patients across blasts, granulocytes, lymphocytes, and monocytes as well as to determine clinical factors statistically associated with changes in syncytin-1 expression. Results The leukocyte type distributions of the AML and B-cell ALL cohorts highly overlapped, with an observable difference in blast distribution between the 2 cohorts. The AML cohort displayed significantly greater syncytin-1 surface and mRNA expression (p<0.05). Syncytin-1 surface and mRNA expression was significantly increased across all 4 leukocyte types (p<0.05). The percentage of syncytin-1-expressing blasts was significantly greater in AML patients (p<0.05), with blasts showing the largest fold-change in syncytin-1 expression (p<0.05). M5, M5a, and M5b AML patients displayed significantly higher syncytin-1 surface expression relative to all other AML French-American-British (FAB) classifications (p<0.05). Conclusions These findings suggest leukocytic syncytin-1 expression may play a role in the development and/or maintenance of the AML phenotype and the acute monocytic leukemia phenotype in particular.
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Affiliation(s)
- Yi Sun
- Department of Clinical Laboratories, The First People's Hospital of Yunnan Province, Kunming, Yunnan, China (mainland)
| | - Hongyan Zhu
- Department of Clinical Laboratories, The First People's Hospital of Yunnan Province, Kunming, Yunnan, China (mainland)
| | - Jianxin Song
- Department of Clinical Laboratories, The First People's Hospital of Yunnan Province, Kunming, Yunnan, China (mainland)
| | - Yaxian Jiang
- Department of Clinical Laboratories, The First People's Hospital of Yunnan Province, Kunming, Yunnan, China (mainland)
| | - Hongmei Ouyang
- Department of Clinical Laboratories, The First People's Hospital of Yunnan Province, Kunming, Yunnan, China (mainland)
| | - Rongzhong Huang
- Department of Rehabilitation, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China (mainland)
| | - Guiqian Zhang
- Department of Clinical Laboratories, The First People's Hospital of Yunnan Province, Kunming, Yunnan, China (mainland)
| | - Xin Fan
- Department of Clinical Laboratories, The First People's Hospital of Yunnan Province, Kunming, Yunnan, China (mainland)
| | - Rui Tao
- Department of Clinical Laboratories, The First People's Hospital of Yunnan Province, Kunming, Yunnan, China (mainland)
| | - Jie Jiang
- Department of Clinical Laboratories, The First People's Hospital of Yunnan Province, Kunming, Yunnan, China (mainland)
| | - Hua Niu
- Department of Clinical Laboratories, The First People's Hospital of Yunnan Province, Kunming, Yunnan, China (mainland)
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72783
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Fojtikova V, Bartosova M, Man P, Stranava M, Shimizu T, Martinkova M. Effects of hydrogen sulfide on the heme coordination structure and catalytic activity of the globin-coupled oxygen sensor AfGcHK. Biometals 2016; 29:715-29. [PMID: 27395436 DOI: 10.1007/s10534-016-9947-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Accepted: 07/01/2016] [Indexed: 12/13/2022]
Abstract
AfGcHK is a globin-coupled histidine kinase that is one component of a two-component signal transduction system. The catalytic activity of this heme-based oxygen sensor is due to its C-terminal kinase domain and is strongly stimulated by the binding of O2 or CO to the heme Fe(II) complex in the N-terminal oxygen sensing domain. Hydrogen sulfide (H2S) is an important gaseous signaling molecule and can serve as a heme axial ligand, but its interactions with heme-based oxygen sensors have not been studied as extensively as those of O2, CO, and NO. To address this knowledge gap, we investigated the effects of H2S binding on the heme coordination structure and catalytic activity of wild-type AfGcHK and mutants in which residues at the putative O2-binding site (Tyr45) or the heme distal side (Leu68) were substituted. Adding Na2S to the initial OH-bound 6-coordinate Fe(III) low-spin complexes transformed them into SH-bound 6-coordinate Fe(III) low-spin complexes. The Leu68 mutants also formed a small proportion of verdoheme under these conditions. Conversely, when the heme-based oxygen sensor EcDOS was treated with Na2S, the initially formed Fe(III)-SH heme complex was quickly converted into Fe(II) and Fe(II)-O2 complexes. Interestingly, the autophosphorylation activity of the heme Fe(III)-SH complex was not significantly different from the maximal enzyme activity of AfGcHK (containing the heme Fe(III)-OH complex), whereas in the case of EcDOS the changes in coordination caused by Na2S treatment led to remarkable increases in catalytic activity.
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Affiliation(s)
- Veronika Fojtikova
- Department of Biochemistry, Faculty of Science, Charles University in Prague, Hlavova 2030, Prague 2, 128 43, Czech Republic
| | - Martina Bartosova
- Department of Biochemistry, Faculty of Science, Charles University in Prague, Hlavova 2030, Prague 2, 128 43, Czech Republic
| | - Petr Man
- Department of Biochemistry, Faculty of Science, Charles University in Prague, Hlavova 2030, Prague 2, 128 43, Czech Republic.,Biotechnology and Biomedicine Centre (BioCeV), Institute of Microbiology of the Czech Academy of Science, v.v.i., Prumyslova 595, Vestec, 252 42, Czech Republic
| | - Martin Stranava
- Department of Biochemistry, Faculty of Science, Charles University in Prague, Hlavova 2030, Prague 2, 128 43, Czech Republic
| | - Toru Shimizu
- Department of Biochemistry, Faculty of Science, Charles University in Prague, Hlavova 2030, Prague 2, 128 43, Czech Republic
| | - Marketa Martinkova
- Department of Biochemistry, Faculty of Science, Charles University in Prague, Hlavova 2030, Prague 2, 128 43, Czech Republic.
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72784
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Wang Y, Peng J, Li Y, Luo H, Huang G, Luo S, Yin X, Song J. Association between tooth loss and risk of oesophageal cancer: a dose-response meta-analysis. Springerplus 2016; 5:1020. [PMID: 27441139 PMCID: PMC4938834 DOI: 10.1186/s40064-016-2711-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/28/2015] [Accepted: 06/29/2016] [Indexed: 12/31/2022]
Abstract
Many epidemiological studies have found that tooth loss is associated with susceptibility to oesophageal cancer. However, a definitive answer is yet to be discovered, and the findings are inconclusive. We performed a meta-analysis to assess the relationship between tooth loss and oesophageal cancer risk. We searched PubMed and Embase databases to screen eligible studies up to June 2015. Nine observational studies (eight articles) involving 2604 patients and 113,995 participants were included in the meta-analysis. The combined odds ratio for tooth loss and oesophageal cancer was 1.53 (95 % CI 1.02-2.29) for the high versus lowest teeth loss categories. However, inconsistent results were detected in the stratified and sensitivity analysis. In dose-response analysis, the summary odds ratio for each one tooth loss increment was 1.01 (95 % CI 1.00-1.02). The current evidence, based solely on six case-control studies and three cohort studies, suggests that tooth loss is a potential marker of oesophageal cancer. However, no firm conclusion can be drawn at this time that tooth loss may play a causal role in development of oesophageal cancer. Additional large-scale and high-quality prospective studies are required to evaluate the association between tooth loss and risk of oesophageal cancer.
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Affiliation(s)
- Yadong Wang
- Department of Oral and Maxillofacial Surgery, Guizhou Provincial People's Hospital, Guizhou, 550002 China
| | - Juxiang Peng
- Department of Orthodontics, Stomatology Hospital of Guiyang, Guizhou, 550002 China
| | - Yan Li
- Department of Oral and Maxillofacial Surgery, Guizhou Provincial People's Hospital, Guizhou, 550002 China
| | - Hong Luo
- Department of Oral and Maxillofacial Surgery, Guizhou Provincial People's Hospital, Guizhou, 550002 China
| | - Guanglei Huang
- Department of Oral and Maxillofacial Surgery, Guizhou Provincial People's Hospital, Guizhou, 550002 China
| | - Siyang Luo
- Department of Oral and Maxillofacial Surgery, Guizhou Provincial People's Hospital, Guizhou, 550002 China
| | - Xinhai Yin
- Department of Oral and Maxillofacial Surgery, Guizhou Provincial People's Hospital, Guizhou, 550002 China
| | - Jukun Song
- Department of Oral and Maxillofacial Surgery, Guizhou Provincial People's Hospital, Guizhou, 550002 China
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72785
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Zheng D, Zhang Q, Liang X, Zhu X, Verma V, Wang S, Zhou S. Effect of the normalized prescription isodose line on the magnitude of Monte Carlo vs. pencil beam target dose differences for lung stereotactic body radiotherapy. J Appl Clin Med Phys 2016; 17:48-58. [PMID: 27455476 PMCID: PMC5690053 DOI: 10.1120/jacmp.v17i4.5965] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2015] [Revised: 02/15/2016] [Accepted: 02/14/2016] [Indexed: 12/26/2022] Open
Abstract
In lung stereotactic body radiotherapy (SBRT) cases, the pencil beam (PB) dose calculation algorithm is known to overestimate target dose as compared to the more accurate Monte Carlo (MC) algorithm. We investigated whether changing the normalized prescription isodose line affected the magnitude of MC vs. PB target dose differences. Forty‐eight patient plans and twenty virtual‐tumor phantom plans were studied. For patient plans, four alternative plans prescribed to 60%, 70%, 80%, and 90% isodose lines were each created for 12 patients who previously received lung SBRT treatments. Using 6 MV dynamic conformal arcs, the plans were individually optimized to achieve similar dose coverage and conformity for all plans of the same patient, albeit at the different prescription levels. These plans, having used a PB algorithm, were all recalculated with MC to compare the target dose differences. The relative MC vs. PB target dose variations were investigated by comparing PTV D95, Dmean, and D5 loss at the four prescription levels. The MC‐to‐PB ratio of the plan heterogeneity index (HI) was also evaluated and compared among different isodose levels. To definitively demonstrate the cause of the isodose line dependence, a simulated phantom study was conducted using simple, spherical virtual tumors planned with uniform block margins. The tumor size and beam energy were also altered in the phantom study to investigate the interplay between these confounding factors and the isodose line effect. The magnitude of the target dose overestimation by PB was greater for higher prescription isodose levels. The MC vs. PB reduction in the target dose coverage indices, D95 and V100 of PTV, were found to monotonically increase with increasing isodose lines from 60% to 90%, resulting in more pronounced target dose coverage deficiency at higher isodose prescription levels. No isodose level‐dependent trend was observed for the dose errors in the target mean or high dose indices, Dmean or D5. The phantom study demonstrated that the observed isodose level dependence was caused by different beam margins used for the different isodose levels: a higher prescription line required a larger beam margin, leading to more low‐density lung tissues in the field and, therefore, larger dose errors at the target periphery (when calculated with PB). The phantom study also found that the observed isodose level dependence was greater for smaller targets and for higher beam energies. We hereby characterized the effect of normalized prescription isodose line on magnitude of PTV dose coverage as calculated by MC vs. PB. When comparing reported MC dose deficiency values for different patients, the selection of prescription isodose line should be considered in addition to other factors known to affect differences in calculated doses between various algorithms. PACS number(s): 87.55.kh, 87.55.dk, 87.55.de
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72786
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Nan Y, Du J, Ma L, Jiang H, Jin F, Yang S. Early Candidate Biomarkers of Non-Small Cell Lung Cancer Are Screened and Identified in Premalignant Lung Lesions. Technol Cancer Res Treat 2016; 16:66-74. [PMID: 26809240 DOI: 10.1177/1533034615627391] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
A specific protein profile that accompanies neoplastic transformation in the premalignant airway epithelium could provide an opportunity for early diagnosis of lung cancer. The aim of this study was to screen and identify early candidate biomarkers of non-small cell lung cancer. Thirteen non-small cell lung cancer samples were obtained within 30 minutes after a surgical resection. Laser capture microdissection was performed to enrich the normal lung cell and squamous metaplasia or atypical adenomatous hyperplasia cell populations. The resulting tandem mass spectrum was automatically searched for proteins against International Protein Index (IPI) human protein database using the TurboSEQUEST searching engine. The molecular function and biological processes of identified proteins were determined based on universal bioinformatics tools. The 2 proteins of interest, focal adhesion kinase and C-terminal Src kinase, were validated using Western blot method. A total of 863 proteins were identified by automatically searching the tandem mass spectrum, among which 427 were dysregulated expression in premalignant airway epithelium compared with those of normal lung cells. The 427 proteins were mainly distributed in 24 sorts of cellular components, 22 molecular function, 15 biological processes, and 10 significant perturbations of pathways. The most significant network included 48 genes and was related to energy production, cell cytoskeleton, cell adhesion, metabolism, oxidative stress, and small molecule biochemistry. Focal adhesion kinase and C-terminal Src kinase were significantly overexpressed in premalignant lung lesion cells compared with the normal lung cells in 13 cases. We identified that there were 427 proteins involved in non-small cell lung cancer carcinogenic process and confirmed the key biological pathways in premalignant lung tissue. The significantly upregulated focal adhesion kinase and C-terminal Src kinase could be considered as molecular biomarkers for early diagnosis and prognosis of non-small cell lung cancer.
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Affiliation(s)
- Yandong Nan
- 1 Department of Respiratory Medicine, Second Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China
| | - Jie Du
- 2 Department of Health Examination Center, Shaanxi Province People's Hospital, Xi'an, China
| | - Lijie Ma
- 3 Department of Respiration, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
| | - Hua Jiang
- 3 Department of Respiration, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
| | - Faguang Jin
- 3 Department of Respiration, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
| | - Shuanying Yang
- 1 Department of Respiratory Medicine, Second Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China
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72787
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Marvar PJ, Hendy EB, Cruise TD, Walas D, DeCicco D, Vadigepalli R, Schwaber JS, Waki H, Murphy D, Paton JFR. Systemic leukotriene B 4 receptor antagonism lowers arterial blood pressure and improves autonomic function in the spontaneously hypertensive rat. J Physiol 2016; 594:5975-5989. [PMID: 27230966 DOI: 10.1113/jp272065] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Accepted: 05/09/2016] [Indexed: 12/19/2022] Open
Abstract
KEY POINTS Evidence indicates an association between hypertension and chronic systemic inflammation in both human hypertension and experimental animal models. Previous studies in the spontaneously hypertensive rat (SHR) support a role for leukotriene B4 (LTB4 ), a potent chemoattractant involved in the inflammatory response, but its mode of action is poorly understood. In the SHR, we observed an increase in T cells and macrophages in the brainstem; in addition, gene expression profiling data showed that LTB4 production, degradation and downstream signalling in the brainstem of the SHR are dynamically regulated during hypertension. When LTB4 receptor 1 (BLT1) receptors were blocked with CP-105,696, arterial pressure was reduced in the SHR compared to the normotensive control and this reduction was associated with a significant decrease in systolic blood pressure (BP) indicators. These data provide new evidence for the role of LTB4 as an important neuro-immune pathway in the development of hypertension and therefore may serve as a novel therapeutic target for the treatment of neurogenic hypertension. ABSTRACT Accumulating evidence indicates an association between hypertension and chronic systemic inflammation in both human hypertension and experimental animal models. Previous studies in the spontaneously hypertensive rat (SHR) support a role for leukotriene B4 (LTB4 ), a potent chemoattractant involved in the inflammatory response. However, the mechanism for LTB4 -mediated inflammation in hypertension is poorly understood. Here we report in the SHR, increased brainstem infiltration of T cells and macrophages plus gene expression profiling data showing that LTB4 production, degradation and downstream signalling in the brainstem of the SHR are dynamically regulated during hypertension. Chronic blockade of the LTB4 receptor 1 (BLT1) receptor with CP-105,696, reduced arterial pressure in the SHR compared to the normotensive control and this reduction was associated with a significant decrease in low and high frequency spectra of systolic blood pressure, and an increase in spontaneous baroreceptor reflex gain (sBRG). These data provide new evidence for the role of LTB4 as an important neuro-immune pathway in the development of hypertension and therefore may serve as a novel therapeutic target for the treatment of neurogenic hypertension.
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Affiliation(s)
- Paul J Marvar
- Department of Pharmacology and Physiology Washington, The George Washington University School of Medical and Health Sciences, Washington, DC, USA
| | - Emma B Hendy
- School of Physiology, Pharmacology & Neuroscience, Medical Sciences, University of Bristol, Bristol, BS8 1TD, UK
| | - Thomas D Cruise
- School of Physiology, Pharmacology & Neuroscience, Medical Sciences, University of Bristol, Bristol, BS8 1TD, UK
| | - Dawid Walas
- School of Physiology, Pharmacology & Neuroscience, Medical Sciences, University of Bristol, Bristol, BS8 1TD, UK
| | - Danielle DeCicco
- Daniel Baugh Institute for Functional Genomics and Computational Biology, Department of Pathology, Anatomy and Cell Biology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Rajanikanth Vadigepalli
- Daniel Baugh Institute for Functional Genomics and Computational Biology, Department of Pathology, Anatomy and Cell Biology, Thomas Jefferson University, Philadelphia, PA, USA
| | - James S Schwaber
- Daniel Baugh Institute for Functional Genomics and Computational Biology, Department of Pathology, Anatomy and Cell Biology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Hidefumi Waki
- Graduate School of Health and Sports Science, Juntendo University, Chiba, Japan
| | - David Murphy
- Henry Wellcome Laboratories for Integrative Neuroscience and Endocrinology, Dorothy Hodgkin Building, University of Bristol, Whitson Street, Bristol, BS1 3NY, UK
| | - Julian F R Paton
- School of Physiology, Pharmacology & Neuroscience, Medical Sciences, University of Bristol, Bristol, BS8 1TD, UK.
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72788
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Rossi M, Boman E, Skyttä T, Kapanen M. A novel arc geometry setting for pelvic radiotherapy with extensive nodal involvement. J Appl Clin Med Phys 2016; 17:73-85. [PMID: 27455479 PMCID: PMC5690051 DOI: 10.1120/jacmp.v17i4.6028] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2015] [Revised: 02/23/2016] [Accepted: 02/18/2016] [Indexed: 11/23/2022] Open
Abstract
The aim of this study was to find optimal planning approach for large planning targets with complicated geometry requiring wide field openings. The study presents a novel approach for arc geometry design for pelvic targets with extensive nodal involvement. A total of 15 patients with anorectal carcinoma or vulvar cancer were selected retrospectively. For each patient, one seven‐field IMRT plan and three VMAT plans were calculated: one with two 360° arcs with no limitations for the field size (VMATw); one with two asymmetrically field‐size‐restricted 360° arcs (VMATr); and the proposed novel approach which consisted of one 360° arc with the field size restricted to the central PTV, and another arc divided into two 180° arcs, restricting the field sizes with the focus on the lymph nodes. The techniques were compared in terms of PTV coverage (VPTV(95%)), dose maximum (D(max)), dose conformity index (CI), homogeneity index (HI), and organs at risk doses. The proposed novel approach with one full and two half arcs tended to have better PTV coverage (VPTV(95%)=97%±2%, compared to 95%±3%,95%±3%, and 97%±2% in VMATw, VMATr, and 7f‐IMRT, respectively) and lower maxima (D(max)=107%±1%, compared to 110%±3%,110%±4%, and 110%±4% in VMATw, VMATr, and 7f‐IMRT, respectively); and lower or equal organs at risk doses. The superiority of the proposed technique (CI=1.16±0.05,HI=9±2) was more pronounced compared with the VMATw plans (CI=1.41±0.10, paired t‐test p<0.001;HI=12±2,p<0.001), but the proposed technique was slightly better also in comparison with the VMATr plans (CI=1.21±0.07,p<0.001;HI=11±4,p=0.015) and 7f‐IMRT plans (CI=1.18±0.03,p=0.016;HI=10±2,p=0.215). Radiotherapy treatment planning for large and complicated treatment volumes benefits not only from restricting the field size but also from careful field design that considers PTV geometry. This optimizes multileaf collimator movements, leading to better dose conformity and homogeneity. PACS number(s): 87.53.Jw, 87.55.D, 87.56.jk:
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72789
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Bhan C, Dipankar P, Chakraborty P, Sarangi PP. Role of cellular events in the pathophysiology of sepsis. Inflamm Res 2016; 65:853-68. [PMID: 27392441 DOI: 10.1007/s00011-016-0970-x] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Revised: 05/11/2016] [Accepted: 06/25/2016] [Indexed: 12/20/2022] Open
Abstract
INTRODUCTION Sepsis is a dysregulated host immune response due to an uncontrolled infection. It is a leading cause of mortality in adult intensive care units globally. When the host immune response induced against a local infection fails to contain it locally, it progresses to sepsis, severe sepsis, septic shock and death. METHOD Literature survey was performed on the roles of different innate and adaptive immune cells in the development and progression of sepsis. Additionally, the effects of septic changes on reprogramming of different immune cells were also summarized to prepare the manuscript. FINDINGS Scientific evidences to date suggest that the loss of balance between inflammatory and anti-inflammatory responses results in reprogramming of immune cell activities that lead to irreversible tissue damaging events and multi-organ failure during sepsis. Many surface receptors expressed on immune cells at various stages of sepsis have been suggested as biomarkers for sepsis diagnosis. Various immunomodulatory therapeutics, which could improve the functions of immune cells during sepsis, were shown to restore immunological homeostasis and improve survival in animal models of sepsis. CONCLUSION In-depth and comprehensive knowledge on the immune cell activities and their correlation with severity of sepsis will help clinicians and scientists to design effective immunomodulatory therapeutics for treating sepsis.
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72790
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Usardi A, Iyer K, Sigoillot SM, Dusonchet A, Selimi F. The immunoglobulin-like superfamily member IGSF3 is a developmentally regulated protein that controls neuronal morphogenesis. Dev Neurobiol 2016; 77:75-92. [PMID: 27328461 DOI: 10.1002/dneu.22412] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Revised: 06/18/2016] [Accepted: 06/18/2016] [Indexed: 01/06/2023]
Abstract
The establishment of a functional brain depends on the fine regulation and coordination of many processes, including neurogenesis, differentiation, dendritogenesis, axonogenesis, and synaptogenesis. Proteins of the immunoglobulin-like superfamily (IGSF) are major regulators during this sequence of events. Different members of this class of proteins play nonoverlapping functions at specific developmental time-points, as shown in particular by studies of the cerebellum. We have identified a member of the little studied EWI subfamily of IGSF, the protein IGSF3, as a membrane protein expressed in a neuron specific- and time-dependent manner during brain development. In the cerebellum, it is transiently found in membranes of differentiating granule cells, and is particularly concentrated at axon terminals. There it co-localizes with other IGSF proteins with well-known functions in cerebellar development: TAG-1 and L1. Functional analysis shows that IGSF3 controls the differentiation of granule cells, more precisely axonal growth and branching. Biochemical experiments demonstrate that, in the developing brain, IGSF3 is in a complex with the tetraspanin TSPAN7, a membrane protein mutated in several forms of X-linked intellectual disabilities. In cerebellar granule cells, TSPAN7 promotes axonal branching and the size of TSPAN7 clusters is increased by downregulation of IGSF3. Thus IGSF3 is a novel regulator of neuronal morphogenesis that might function through interactions with multiple partners including the tetraspanin TSPAN7. This developmentally regulated protein might thus be at the center of a new signaling pathway controlling brain development. © 2016 Wiley Periodicals, Inc. Develop Neurobiol 77: 75-92, 2017.
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Affiliation(s)
- Alessia Usardi
- Team Mice, Molecules and Synapse Formation, CIRB, Collège de France, CNRS, INSERM, PSL* Research University, Paris, France, 75231, Cedex 05
| | - Keerthana Iyer
- Team Mice, Molecules and Synapse Formation, CIRB, Collège de France, CNRS, INSERM, PSL* Research University, Paris, France, 75231, Cedex 05
| | - Séverine M Sigoillot
- Team Mice, Molecules and Synapse Formation, CIRB, Collège de France, CNRS, INSERM, PSL* Research University, Paris, France, 75231, Cedex 05
| | - Antoine Dusonchet
- Team Mice, Molecules and Synapse Formation, CIRB, Collège de France, CNRS, INSERM, PSL* Research University, Paris, France, 75231, Cedex 05
| | - Fekrije Selimi
- Team Mice, Molecules and Synapse Formation, CIRB, Collège de France, CNRS, INSERM, PSL* Research University, Paris, France, 75231, Cedex 05
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72791
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Aggarwal S, Mannam P, Zhang J. Differential regulation of autophagy and mitophagy in pulmonary diseases. Am J Physiol Lung Cell Mol Physiol 2016; 311:L433-52. [PMID: 27402690 DOI: 10.1152/ajplung.00128.2016] [Citation(s) in RCA: 90] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2016] [Accepted: 07/01/2016] [Indexed: 12/26/2022] Open
Abstract
Lysosomal-mediated degradation of intracellular lipids, proteins and organelles, known as autophagy, represents a inducible adaptive response to lung injury resulting from exposure to insults, such as hypoxia, microbes, inflammation, ischemia-reperfusion, pharmaceuticals (e.g., bleomycin), or inhaled xenobiotics (i.e., air pollution, cigarette smoke). This process clears damaged or toxic cellular constituents and facilitates cell survival in stressful environments. Autophagic degradation of dysfunctional or damaged mitochondria is termed mitophagy. Enhanced mitophagy is usually an early response to promote survival. However, overwhelming or prolonged mitochondrial damage can induce excessive/pathological levels of mitophagy, thereby promoting cell death and tissue injury. Autophagy/mitophagy is therefore an important modulator in human pulmonary diseases and a potential therapeutic target. This review article will summarize the most recent studies highlighting the role of autophagy/mitophagy and its molecular pathways involved in stress response in pulmonary pathologies.
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Affiliation(s)
- Saurabh Aggarwal
- Division of Molecular and Translational Biomedicine, Department of Anesthesiology and Perioperative Medicine, University of Alabama at Birmingham School of Medicine, Birmingham, Alabama
| | - Praveen Mannam
- Department of Pulmonary, Critical Care and Sleep Medicine, Yale University School of Medicine, New Haven, Connecticut; and
| | - Jianhua Zhang
- Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama
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72792
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Abstract
Esophageal cancer is one of the most prevalent forms of cancer and has a particularly high mortality rate due to early metastasis; however, the underlying mechanisms of its formation and progression remain unclear. The present study performed immunohistochemical analysis and observed that the expression of activating transcription factor 3 (ATF3) was reduced in esophageal squamous cell carcinoma (ESCC) in comparison with non-tumor adjacent tissues. By contrast, inhibitor of DNA binding 1 (ID1) was overexpressed in ESCC tissues, demonstrating an inverse correlation with ATF3 (P<0.01). In ESCC EC109 and KYSE450 cells lines, transfection with an ATF3-overexpression plasmid resulted in the inhibition of cell proliferation, motility and migration, which was associated with the induction of E-cadherin expression and inhibition of cyclin D1 and Twist. Notably, ATF3 exerted an inverse regulatory interaction with ID1. The results of the present study provide additional evidence of the tumor suppressive features of ATF3 and demonstrate a novel mechanism of ATF3-mediated inhibition of cancer metastasis in esophageal cancer.
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Affiliation(s)
- Jian Li
- Department of Gastroenterology, People's Hospital of Zhengzhou University, Henan Provincial People's Hospital, Zhengzhou, Henan 450052, P.R. China
| | - Zishan Yang
- Laboratory for Cancer Signal Transduction, Xinxiang Medical University, Xinxiang, Henan 453003, P.R. China
| | - Zhiuguo Chen
- Laboratory for Cancer Signal Transduction, Xinxiang Medical University, Xinxiang, Henan 453003, P.R. China; Department of Histology, School of Medicine, Wuhan University, Wuhan, Hubei 430072, P.R. China
| | - Yonghua Bao
- Laboratory for Cancer Signal Transduction, Xinxiang Medical University, Xinxiang, Henan 453003, P.R. China; Department of Immunology, Xinxiang Medical University, Xinxiang, Henan 453003, P.R. China
| | - Huijuan Zhang
- Department of Gastroenterology, Seventh People's Hospital of Zhengzhou City, Zhengzhou, Henan 45000, P.R. China
| | - Xinhui Fang
- Department of Gastroenterology, People's Hospital of Zhengzhou University, Henan Provincial People's Hospital, Zhengzhou, Henan 450052, P.R. China
| | - Wancai Yang
- Laboratory for Cancer Signal Transduction, Xinxiang Medical University, Xinxiang, Henan 453003, P.R. China; Department of Pathology, Xinxiang Medical University, Xinxiang, Henan 453003, P.R. China; Department of Pathology, College of Medicine, University of Illinois at Chicago, Chicago, IL 60612, USA
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72793
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Yu H, Huang L, Zhang Y, Hu L, Wang S, Li J, Cai X, Cui S, Weng C. An attenuated EMCV-HB10 strain acts as a live viral vector delivering a foreign gene. J Gen Virol 2016; 97:2280-2290. [PMID: 27392429 DOI: 10.1099/jgv.0.000541] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
We successfully constructed a full-length cDNA infectious clone of the encephalomyocarditis virus (EMCV) HB10 strain and obtained a partially attenuated rEMCV-C9 virus with a shorter poly(C) tract. Our results showed that the length of the EMCV-HB10 poly(C) tract was related to the pathogenicity of the EMCV-HB10 strain in vivo. Using pEMCV-C9 as the backbone, we constructed the novel viral vector pC9-MCS-∆2A by inserting a cDNA fragment containing a 127 amino acid deletion in the 2A protein, a primary cleavage cassette, a FLAG tag and a multiple cloning site (MCS) at the junction of VP1 and ∆2A. Additionally, the enhanced green fluorescent protein (egfp) gene was cloned into the MCS of pC9-MCS-∆2A to test its capacity to express foreign proteins. Insertion of the egfp gene did not affect viral replication, and a decrease in EGFP expression was observed within five serial passages. Furthermore, we found that rC9-EGFP-∆2A was avirulent in vivo, induced neutralizing antibody production and conferred protective immune responses against lethal challenge with EMCV in mice. Taken together, our results demonstrated that we had constructed an attenuated live vector based on an EMCV-HB10 strain with two modified critical virulence factors (the poly(C) tract and 2A protein) that could be used as a candidate live vaccine and a potential live viral vector for foreign antigen delivery.
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Affiliation(s)
- Huibin Yu
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute of Chinese Academy of Agricultural Sciences, Harbin, PR China
| | - Li Huang
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute of Chinese Academy of Agricultural Sciences, Harbin, PR China
| | - Yuanfeng Zhang
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute of Chinese Academy of Agricultural Sciences, Harbin, PR China
| | - Liang Hu
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute of Chinese Academy of Agricultural Sciences, Harbin, PR China
| | - Shengnan Wang
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute of Chinese Academy of Agricultural Sciences, Harbin, PR China
| | - Jiangnan Li
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute of Chinese Academy of Agricultural Sciences, Harbin, PR China
| | - Xuehui Cai
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute of Chinese Academy of Agricultural Sciences, Harbin, PR China
| | - Shangjin Cui
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute of Chinese Academy of Agricultural Sciences, Harbin, PR China
| | - Changjiang Weng
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute of Chinese Academy of Agricultural Sciences, Harbin, PR China
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72794
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Song Y, Wu X, Wang N, Ouyang G, Qu N, Cui J, Qi Y, Liao M, Jiao P. A Novel H1N2 Influenza Virus Related to the Classical and Human Influenza Viruses from Pigs in Southern China. Front Microbiol 2016; 7:1068. [PMID: 27458456 PMCID: PMC4937032 DOI: 10.3389/fmicb.2016.01068] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Accepted: 06/24/2016] [Indexed: 01/26/2023] Open
Abstract
Southern China has long been considered to be an epicenter of pandemic influenza viruses. The special environment, breeding mode, and lifestyle in southern China provides more chances for wild aquatic birds, domestic poultry, pigs, and humans to be in contact. This creates the opportunity for interspecies transmission and generation of new influenza viruses. In this study, we reported a novel reassortant H1N2 influenza virus from pigs in southern China. According to the phylogenetic trees and homology of the nucleotide sequence, the virus was confirmed to be a novel triple-reassortant H1N2 virus containing genes from classical swine (PB2, PB1, HA, NP, and NS genes), triple-reassortant swine (PA and M genes), and recent human (NA gene) lineages. It indicated that the novel reassortment virus among human and swine influenza viruses occurred in pigs in southern China. The isolation of the novel reassortant H1N2 influenza viruses provides further evidence that pigs are “mixing vessels,” and swine influenza virus surveillance in southern China will provide important information about genetic evaluation and antigenic variation of swine influenza virus to formulate the prevention and control measures for the viruses.
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Affiliation(s)
- Yafen Song
- College of Veterinary Medicine, South China Agricultural UniversityGuangzhou, China; National and Regional Joint Engineering Laboratory for Medicament of Zoonosis Prevention and ControlGuangzhou, China; Key Laboratory of Animal Vaccine Development, Ministry of AgricultureGuangzhou, China; Key Laboratory of Zoonosis Prevention and Control of GuangdongGuangzhou, China
| | - Xiaowei Wu
- College of Veterinary Medicine, South China Agricultural UniversityGuangzhou, China; Guangdong Entry-Exit Inspection and Quarantine BureauGuangzhou, China
| | - Nianchen Wang
- College of Veterinary Medicine, South China Agricultural UniversityGuangzhou, China; National and Regional Joint Engineering Laboratory for Medicament of Zoonosis Prevention and ControlGuangzhou, China; Key Laboratory of Animal Vaccine Development, Ministry of AgricultureGuangzhou, China; Key Laboratory of Zoonosis Prevention and Control of GuangdongGuangzhou, China
| | - Guowen Ouyang
- College of Veterinary Medicine, South China Agricultural UniversityGuangzhou, China; National and Regional Joint Engineering Laboratory for Medicament of Zoonosis Prevention and ControlGuangzhou, China; Key Laboratory of Animal Vaccine Development, Ministry of AgricultureGuangzhou, China; Key Laboratory of Zoonosis Prevention and Control of GuangdongGuangzhou, China
| | - Nannan Qu
- College of Veterinary Medicine, South China Agricultural UniversityGuangzhou, China; National and Regional Joint Engineering Laboratory for Medicament of Zoonosis Prevention and ControlGuangzhou, China; Key Laboratory of Animal Vaccine Development, Ministry of AgricultureGuangzhou, China; Key Laboratory of Zoonosis Prevention and Control of GuangdongGuangzhou, China
| | - Jin Cui
- College of Veterinary Medicine, South China Agricultural UniversityGuangzhou, China; National and Regional Joint Engineering Laboratory for Medicament of Zoonosis Prevention and ControlGuangzhou, China; Key Laboratory of Animal Vaccine Development, Ministry of AgricultureGuangzhou, China; Key Laboratory of Zoonosis Prevention and Control of GuangdongGuangzhou, China
| | - Yan Qi
- China Animal Husbandry Group Beijing, China
| | - Ming Liao
- College of Veterinary Medicine, South China Agricultural UniversityGuangzhou, China; National and Regional Joint Engineering Laboratory for Medicament of Zoonosis Prevention and ControlGuangzhou, China; Key Laboratory of Animal Vaccine Development, Ministry of AgricultureGuangzhou, China; Key Laboratory of Zoonosis Prevention and Control of GuangdongGuangzhou, China
| | - Peirong Jiao
- College of Veterinary Medicine, South China Agricultural UniversityGuangzhou, China; National and Regional Joint Engineering Laboratory for Medicament of Zoonosis Prevention and ControlGuangzhou, China; Key Laboratory of Animal Vaccine Development, Ministry of AgricultureGuangzhou, China; Key Laboratory of Zoonosis Prevention and Control of GuangdongGuangzhou, China
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72795
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Drzewiecka H, Gałęcki B, Jarmołowska-Jurczyszyn D, Kluk A, Dyszkiewicz W, Jagodziński PP. Decreased expression of connective tissue growth factor in non-small cell lung cancer is associated with clinicopathological variables and can be restored by epigenetic modifiers. J Cancer Res Clin Oncol 2016; 142:1927-46. [PMID: 27393180 PMCID: PMC4978771 DOI: 10.1007/s00432-016-2195-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Accepted: 06/18/2016] [Indexed: 01/27/2023]
Abstract
Purpose Recent studies indicated undisputed contribution of connective tissue growth factor (CTGF) in the development of many cancers, including non-small cell lung cancer (NSCLC). However, the functional role and regulation of CTGF expression during tumorigenesis remain elusive. Our goal was to determine CTGF transcript and protein levels in tumoral and matched control tissues from 98 NSCLC patients, to correlate the results with clinicopathological features and to investigate whether the CTGF expression can be epigenetically regulated in NSCLC. Methods We used quantitative PCR, Western blotting and immunohistochemistry to evaluate CTGF expression in lung cancerous and histopathologically unchanged tissues. We tested the impact of 5-Aza-2′-deoxycytidine (5-dAzaC) and trichostatin A (TSA) on CTGF transcript and protein levels in NSCLC cells (A549, Calu-1). DNA methylation status of the CTGF regulatory region was evaluated by bisulfite sequencing. The influence of 5-dAzaC and TSA on NSCLC cells viability and proliferation was monitored by the trypan blue assay. Results We found significantly decreased levels of CTGF mRNA and protein (both p < 0.0000001) in cancerous tissues of NSCLC patients. Down-regulation of CTGF occurred regardless of gender in all histological subtypes of NSCLC. Moreover, we showed that 5-dAzaC and TSA were able to restore CTGF mRNA and protein contents in NSCLC cells. However, no methylation within CTGF regulatory region was detected. Both compounds significantly reduced NSCLC cells proliferation. Conclusions Decreased expression of CTGF is a common feature in NSCLC; however, it can be restored by the chromatin-modifying agents such as 5-dAzaC or TSA and consequently restrain cancer development. Electronic supplementary material The online version of this article (doi:10.1007/s00432-016-2195-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Hanna Drzewiecka
- Department of Biochemistry and Molecular Biology, Poznan University of Medical Sciences, Święcickiego 6 Street, 60-781, Poznan, Poland.
| | - Bartłomiej Gałęcki
- Department of Thoracic Surgery, Poznan University of Medical Sciences, Szamarzewskiego 62 Street, 60-569, Poznan, Poland
| | - Donata Jarmołowska-Jurczyszyn
- Department of Clinical Pathomorphology, Poznan University of Medical Sciences, Przybyszewskiego 49 Street, 60-355, Poznan, Poland
| | - Andrzej Kluk
- Department of Clinical Pathomorphology, Poznan University of Medical Sciences, Przybyszewskiego 49 Street, 60-355, Poznan, Poland
| | - Wojciech Dyszkiewicz
- Department of Thoracic Surgery, Poznan University of Medical Sciences, Szamarzewskiego 62 Street, 60-569, Poznan, Poland
| | - Paweł P Jagodziński
- Department of Biochemistry and Molecular Biology, Poznan University of Medical Sciences, Święcickiego 6 Street, 60-781, Poznan, Poland
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72796
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Miao X, Wu Y, Wang Y, Zhu X, Yin H, He Y, Li C, Liu Y, Lu X, Chen Y, Shen R, Xu X, He S. Y-box-binding protein-1 (YB-1) promotes cell proliferation, adhesion and drug resistance in diffuse large B-cell lymphoma. Exp Cell Res 2016; 346:157-66. [PMID: 27397581 DOI: 10.1016/j.yexcr.2016.07.003] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Revised: 06/13/2016] [Accepted: 07/07/2016] [Indexed: 11/23/2022]
Abstract
YB-1 is a multifunctional protein, which has been shown to correlate with resistance to treatment of various tumor types. This study investigated the expression and biologic function of YB-1 in diffuse large B-cell lymphoma (DLBCL). Immunohistochemical analysis showed that the expression statuses of YB-1 and pYB-1(S102) were reversely correlated with the clinical outcomes of DLBCL patients. In addition, we found that YB-1 could promote the proliferation of DLBCL cells by accelerating the G1/S transition. Ectopic expression of YB-1 could markedly increase the expression of cell cycle regulators cyclin D1 and cyclin E. Furthermore, we found that adhesion of DLBCL cells to fibronectin (FN) could increase YB-1 phosphorylation at Ser102 and pYB-1(S102) nuclear translocation. In addition, overexpression of YB-1 could increase the adhesion of DLBCL cells to FN. Intriguingly, we found that YB-1 overexpression could confer drug resistance through cell-adhesion dependent and independent mechanisms in DLBCL. Silencing of YB-1 could sensitize DLBCL cells to mitoxantrone and overcome cell adhesion-mediated drug resistance (CAM-DR) phenotype in an AKT-dependent manner.
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72797
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Zhu X, Yang S, Lin W, Wang L, Ying J, Ding Y, Chen X. Roles of Cell Cyle Regulators Cyclin D1, CDK4, and p53 in Knee Osteoarthritis. Genet Test Mol Biomarkers 2016; 20:529-34. [PMID: 27391794 DOI: 10.1089/gtmb.2016.0020] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
OBJECTIVE The aim of this study was to investigate the roles of cyclin D1, CDK4, and p53 in knee osteoarthritis (KOA). METHODS A total of 76 healthy controls and 154 KOA cases (grades ranging from II to IV) were recruited. Protein expression of cyclin D1, CDK4, and p53 were detected by immunohistochemistry, and mRNA expression levels of the cyclin D1, the CDK4, and the p53 genes were measured by reverse transcription-polymerase chain reaction. RESULTS Both protein and mRNA expression levels of cyclin D1 and CDK4 were significantly lower in KOA cases than those in healthy controls, while protein and mRNA expression of p53 was significantly higher in KOA cases than that in healthy controls (all p < 0.05). As the grades of KOA increased, Cyclin D1 and CDK4 mRNA expressions decreased, whereas p53 mRNA expression increased (all p < 0.05). In KOA cases, mRNA expression of Cyclin D1 was positively correlated to CDK4 mRNA levels (r = 0.386, p < 0.001), while negatively correlated with p53 mRNA levels (r = -0.227, p = 0.005). CONCLUSIONS Expression of the Cyclin D1, CDK4, and p53 genes are correlated with the disease grades of KOA.
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Affiliation(s)
- Xiongbai Zhu
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Wenzhou Medical University , Wenzhou, Zhejiang, People's Republic of China
| | - Shengwu Yang
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Wenzhou Medical University , Wenzhou, Zhejiang, People's Republic of China
| | - Wenjun Lin
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Wenzhou Medical University , Wenzhou, Zhejiang, People's Republic of China
| | - Lu Wang
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Wenzhou Medical University , Wenzhou, Zhejiang, People's Republic of China
| | - Jinwei Ying
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Wenzhou Medical University , Wenzhou, Zhejiang, People's Republic of China
| | - Yewei Ding
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Wenzhou Medical University , Wenzhou, Zhejiang, People's Republic of China
| | - Xin Chen
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Wenzhou Medical University , Wenzhou, Zhejiang, People's Republic of China
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72798
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Maupoey Ibáñez J, Ballester Pla N, García-Domínguez R, Vaqué Urbaneja J, Mingol Navarro F. Surgical management of a complete section of the oesophagus during total thyroidectomy. Cir Esp 2016; 95:118-120. [PMID: 27381053 DOI: 10.1016/j.ciresp.2016.06.002] [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: 11/30/2015] [Revised: 05/30/2016] [Accepted: 06/04/2016] [Indexed: 11/18/2022]
Affiliation(s)
- Javier Maupoey Ibáñez
- Unidad de Cirugía Digestiva, Servicio de Cirugía General y del Aparato Digestivo, Hospital Universitario y Politécnico La Fe, Valencia, España.
| | - Neus Ballester Pla
- Unidad de Cirugía Digestiva, Servicio de Cirugía General y del Aparato Digestivo, Hospital Universitario y Politécnico La Fe, Valencia, España
| | - Rafael García-Domínguez
- Unidad de Cirugía Digestiva, Servicio de Cirugía General y del Aparato Digestivo, Hospital Universitario y Politécnico La Fe, Valencia, España
| | - Javier Vaqué Urbaneja
- Unidad de Cirugía Digestiva, Servicio de Cirugía General y del Aparato Digestivo, Hospital Universitario y Politécnico La Fe, Valencia, España
| | - Fernando Mingol Navarro
- Unidad de Cirugía Digestiva, Servicio de Cirugía General y del Aparato Digestivo, Hospital Universitario y Politécnico La Fe, Valencia, España
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72799
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Luo LN, He LJ, Gao XY, Huang XX, Shan HB, Luo GY, Li Y, Lin SY, Wang GB, Zhang R, Xu GL, Li JJ. Endoscopic Ultrasound for Preoperative Esophageal Squamous Cell Carcinoma: a Meta-Analysis. PLoS One 2016; 11:e0158373. [PMID: 27387830 PMCID: PMC4936717 DOI: 10.1371/journal.pone.0158373] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Accepted: 06/14/2016] [Indexed: 11/24/2022] Open
Abstract
Background Treatment options and prognosis of esophageal squamous cell carcinoma (ESCC) depend on the primary tumor depth (T-staging) and regional lymph node status (N-staging). Endoscopic ultrasound (EUS) has emerged as a useful staging tool, but studies regarding its benefits have been variable. The objective of this study was to evaluate the diagnostic accuracy of EUS for detecting preoperative ESCC. Methods We included in our meta-analysis studies involving EUS-based staging of preoperative ESCC compared with pathological staging. Using a random-effects model, we performed a meta-analysis of the accuracy of EUS by calculating pooled estimates of sensitivity, specificity and the diagnostic odds ratio. In addition, we created a summary receiver operating characteristic (SROC) curve. Results Forty-four studies (n = 2880) met the inclusion criteria. The pooled sensitivity and specificity of T1 were 77% (95%CI: 73 to 80) and 95% (95%CI: 94 to 96). Among the T1 patients, EUS had a pooled sensitivity in differentiating T1a and T1b of 84% (95%CI: 80 to 88) and 83% (95%CI: 80 to 86), and a specificity of 91% (95%CI: 88 to 94) and 89% (95%CI: 86 to 92). To stage T4, EUS had a pooled sensitivity of 84% (95%CI: 79 to 89) and a specificity of 96% (95%CI: 95 to 97). The overall accuracy of EUS for T-staging was 79% (95%CI: 77 to 80), and for N-staging, 71% (95%CI: 69 to 73). Conclusions EUS has good diagnostic accuracy for staging ESCC, which has better performance in T1 sub-staging (T1a and T1b) and advanced disease (T4).
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Affiliation(s)
- Lin-na Luo
- Department of Endoscopy, Sun Yat-sen University Cancer Center, Guangzhou, China
- State Key Laboratory of Oncology in South China, Guangzhou, China
- Guangdong Esophageal Cancer Institute, Guangzhou, China
- Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Long-jun He
- Department of Endoscopy, Sun Yat-sen University Cancer Center, Guangzhou, China
- State Key Laboratory of Oncology in South China, Guangzhou, China
- Guangdong Esophageal Cancer Institute, Guangzhou, China
- Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Xiao-yan Gao
- Department of Endoscopy, Sun Yat-sen University Cancer Center, Guangzhou, China
- State Key Laboratory of Oncology in South China, Guangzhou, China
- Guangdong Esophageal Cancer Institute, Guangzhou, China
- Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Xin-xin Huang
- Department of Endoscopy, Sun Yat-sen University Cancer Center, Guangzhou, China
- State Key Laboratory of Oncology in South China, Guangzhou, China
- Guangdong Esophageal Cancer Institute, Guangzhou, China
- Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Hong-bo Shan
- Department of Endoscopy, Sun Yat-sen University Cancer Center, Guangzhou, China
- State Key Laboratory of Oncology in South China, Guangzhou, China
- Guangdong Esophageal Cancer Institute, Guangzhou, China
- Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Guang-yu Luo
- Department of Endoscopy, Sun Yat-sen University Cancer Center, Guangzhou, China
- State Key Laboratory of Oncology in South China, Guangzhou, China
- Guangdong Esophageal Cancer Institute, Guangzhou, China
- Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Yin Li
- Department of Endoscopy, Sun Yat-sen University Cancer Center, Guangzhou, China
- State Key Laboratory of Oncology in South China, Guangzhou, China
- Guangdong Esophageal Cancer Institute, Guangzhou, China
- Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Shi-yong Lin
- Department of Endoscopy, Sun Yat-sen University Cancer Center, Guangzhou, China
- State Key Laboratory of Oncology in South China, Guangzhou, China
- Guangdong Esophageal Cancer Institute, Guangzhou, China
- Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Guo-bao Wang
- Department of Endoscopy, Sun Yat-sen University Cancer Center, Guangzhou, China
- State Key Laboratory of Oncology in South China, Guangzhou, China
- Guangdong Esophageal Cancer Institute, Guangzhou, China
- Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Rong Zhang
- Department of Endoscopy, Sun Yat-sen University Cancer Center, Guangzhou, China
- State Key Laboratory of Oncology in South China, Guangzhou, China
- Guangdong Esophageal Cancer Institute, Guangzhou, China
- Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Guo-liang Xu
- Department of Endoscopy, Sun Yat-sen University Cancer Center, Guangzhou, China
- State Key Laboratory of Oncology in South China, Guangzhou, China
- Guangdong Esophageal Cancer Institute, Guangzhou, China
- Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
- * E-mail: (GLX); (JJL)
| | - Jian-jun Li
- Department of Endoscopy, Sun Yat-sen University Cancer Center, Guangzhou, China
- State Key Laboratory of Oncology in South China, Guangzhou, China
- Guangdong Esophageal Cancer Institute, Guangzhou, China
- Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
- * E-mail: (GLX); (JJL)
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72800
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Carrott P, Cherry-bukowiec JR, Jones CM, Miller KR, Kiraly L. Nutrition Therapy in the Organ Donor: Theoretical Benefits and Barriers to Implementation. Curr Nutr Rep 2016; 5:199-203. [DOI: 10.1007/s13668-016-0170-x] [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: 10/21/2022]
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