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Han J, Zhang L, Yang L, Luo Y, Yao R, Qu X. The implementation of an active inquiry learning centered "7E" teaching mode in the cell biology course enhances the learning effects of postgraduate students. Biochem Mol Biol Educ 2024. [PMID: 38308542 DOI: 10.1002/bmb.21818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 01/02/2024] [Accepted: 01/23/2024] [Indexed: 02/04/2024]
Abstract
The primary objective of science postgraduate education is to foster students' capacity for creative thinking and problem-solving, particularly in the context of scientific research quality. In order to achieve this goal, the "7E" teaching mood has been implemented in the cell biology course for postgraduate students to promote student-centered active inquiry learning instead of breaking away from traditional indoctrination-based teaching methods. This study demonstrates that the implementation of the "7E" teaching mode, through content programming, process design, and effect evaluation, effectively meets the needs of the majority of students, fosters their interest in learning, enhances their performance in comprehensive questioning, and enhances their innovative abilities in scientific research. Consequently, this research offers a theoretical framework and practical foundation for the development of the "7E" teaching mode in postgraduate courses, aiming to cultivate highly skilled scientific professionals.
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Affiliation(s)
- Jingjing Han
- School of Basic Medical Sciences, Jiangsu Vocational College of Medicine, Yancheng, Jiangsu, China
- Department of Neurology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Lina Zhang
- Reproduction Medical Center of West China Second University Hospital, Key Laboratory of Obstetric, Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Liucai Yang
- School of Basic Medical Sciences, Jiangsu Vocational College of Medicine, Yancheng, Jiangsu, China
| | - Yougen Luo
- School of Basic Medical Sciences, Jiangsu Vocational College of Medicine, Yancheng, Jiangsu, China
| | - Ruiqin Yao
- Department of Cell Biology and Neurobiology, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Xuebin Qu
- School of Basic Medical Sciences, Jiangsu Vocational College of Medicine, Yancheng, Jiangsu, China
- Department of Cell Biology and Neurobiology, Xuzhou Medical University, Xuzhou, Jiangsu, China
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Yang JM, Qu X, Zhou XD, Chen T. [Proposal and thoughts on establishing and improving multi-level dental insurance in China]. Zhonghua Kou Qiang Yi Xue Za Zhi 2023; 58:189-195. [PMID: 36746454 DOI: 10.3760/cma.j.cn112144-20220601-00294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Oral diseases are highly prevalent in China, while oral health services are generally underutilized and public health resources are wasted. Lacking oral insurance may be one of the leading causes. The basic medical insurance of China does not cover dental care in most cities, which is worthy to further discuss. To better understand the experience of dental insurance from international dental care practice, the dental coverage scope, content, co-pay ratio, and effects of oral insurance on oral health improvement from the abroad countries with typical health insurance systems were summarized by using scoping review. Then, we discussed the coverage scope for dental health of basic medical insurance and private insurance in China. We also analyzed the current issues of dental care coverage and cost-share. At last, we proposed thoughts and suggestions to establish and improve a multi-level oral health insurance system with Chinese characteristics under the basic medical insurance frame. In particular, we gave suggestions on increasing the coverage for high dental care xpenditure by ebasic medical insurance, supplying children and teenagers with preventive dental care, and encouraging private insurance companies to cover dental care expenditure.
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Affiliation(s)
- J M Yang
- Department of Social Security, School of Public Administration, Southwestern University of Finance and Economics, Chengdu 611130, China
| | - X Qu
- Institute of Hospital Management, West China Hospital, Sichuan University, Chengdu 610041, China
| | - X D Zhou
- Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University & State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Chengdu 610041, China
| | - T Chen
- Department of Insurance and Actuarial Science, School of Finance, Southwestern University of Finance and Economics, Chengdu 611130, China
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Gao Y, Zhang D, Wang P, Qu X, Xu J, Yu Y, Zhou X. Acrylamide-induced meiotic arrest of spermatocytes in adolescent mice by triggering excessive DNA strand breaks: Potential therapeutic effects of resveratrol. Hum Exp Toxicol 2023; 42:9603271231188293. [PMID: 37550604 DOI: 10.1177/09603271231188293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/09/2023]
Abstract
Background: Baked carbohydrate-rich foods are the main source of acrylamide (AA) in the general population and are widely consumed by teenagers. Considering the crucial development of the reproductive system during puberty, the health risks posed by AA in adolescent males have raised public concern.Methods: In this study, we exposed 3-week-old male pubertal mice to AA for 4 weeks to evaluate its effect on spermatogenesis using computer-assisted sperm analysis (CASA) and historical analysis. Flow cytometric analysis and meiocyte spreading assay were conducted to assess meiosis in mice. The expression of meiosis-related proteins and double-strand break (DSB) proteins were evaluated by immunoblot analyses. Additionally, isolated spermatocytes were used to explore the role of resveratrol in AA-induced damages of meiosis.Results: Our results showed that AA decreased the testicular and epididymal indexes, reduced sperm count and motility, and induced morphological disruption of the testes in pubertal mice. Subsequent meiotic analysis revealed that AA increased the proportion of 4C spermatocytes and decreased the proportion of 1C spermatids. The expression levels of meiosis-related proteins (SYCP3, Cyclin A1 and CDK2) were downregulated, and signaling proteins (γH2AX, p-CHK2 and p-ATM) expression levels were upregulated in AA-treated mice testes. Similar expression patterns were observed in primary spermatocytes treated with AA and these effects were reversed significantly by resveratrol.Conclusions: Our results indicate that AA induces meiotic arrest via persistent activation of DSBs, which may contribute to AA-compromised spermatogenesis. Resveratrol could serve as a potential therapeutic agent against AA-induced meiotic toxicity. These data highlight the importance of natural product supplementation for treating AA-related reproductive toxicity.
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Affiliation(s)
- Y Gao
- Second Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang, China
| | - D Zhang
- Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China
| | - P Wang
- Second Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang, China
| | - X Qu
- Second Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang, China
| | - J Xu
- Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Y Yu
- Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China
| | - X Zhou
- Second Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang, China
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Korenblik R, van Zon JFJA, Olij B, Heil J, Dewulf MJL, Neumann UP, Olde Damink SWM, Binkert CA, Schadde E, van der Leij C, van Dam RM, van Baardewijk LJ, Barbier L, Binkert CA, Billingsley K, Björnsson B, Andorrà EC, Arslan B, Baclija I, Bemelmans MHA, Bent C, de Boer MT, Bokkers RPH, de Boo DW, Breen D, Breitenstein S, Bruners P, Cappelli A, Carling U, Robert MCI, Chan B, De Cobelli F, Choi J, Crawford M, Croagh D, van Dam RM, Deprez F, Detry O, Dewulf MJL, Díaz-Nieto R, Dili A, Erdmann JI, Font JC, Davis R, Delle M, Fernando R, Fisher O, Fouraschen SMG, Fretland ÅA, Fundora Y, Gelabert A, Gerard L, Gobardhan P, Gómez F, Guiliante F, Grünberger T, Grochola LF, Grünhagen DJ, Guitart J, Hagendoorn J, Heil J, Heise D, Herrero E, Hess G, Hilal MA, Hoffmann M, Iezzi R, Imani F, Inmutto N, James S, Borobia FJG, Jovine E, Kalil J, Kingham P, Kollmar O, Kleeff J, van der Leij C, Lopez-Ben S, Macdonald A, Meijerink M, Korenblik R, Lapisatepun W, Leclercq WKG, Lindsay R, Lucidi V, Madoff DC, Martel G, Mehrzad H, Menon K, Metrakos P, Modi S, Moelker A, Montanari N, Moragues JS, Navinés-López J, Neumann UP, Nguyen J, Peddu P, Primrose JN, Olde Damink SWM, Qu X, Raptis DA, Ratti F, Ryan S, Ridouani F, Rinkes IHMB, Rogan C, Ronellenfitsch U, Serenari M, Salik A, Sallemi C, Sandström P, Martin ES, Sarría L, Schadde E, Serrablo A, Settmacher U, Smits J, Smits MLJ, Snitzbauer A, Soonawalla Z, Sparrelid E, Spuentrup E, Stavrou GA, Sutcliffe R, Tancredi I, Tasse JC, Teichgräber U, Udupa V, Valenti DA, Vass D, Vogl TJ, Wang X, White S, De Wispelaere JF, Wohlgemuth WA, Yu D, Zijlstra IJAJ. Resectability of bilobar liver tumours after simultaneous portal and hepatic vein embolization versus portal vein embolization alone: meta-analysis. BJS Open 2022; 6:6844022. [PMID: 36437731 PMCID: PMC9702575 DOI: 10.1093/bjsopen/zrac141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 09/09/2022] [Accepted: 10/05/2022] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND Many patients with bi-lobar liver tumours are not eligible for liver resection due to an insufficient future liver remnant (FLR). To reduce the risk of posthepatectomy liver failure and the primary cause of death, regenerative procedures intent to increase the FLR before surgery. The aim of this systematic review is to provide an overview of the available literature and outcomes on the effectiveness of simultaneous portal and hepatic vein embolization (PVE/HVE) versus portal vein embolization (PVE) alone. METHODS A systematic literature search was conducted in PubMed, Web of Science, and Embase up to September 2022. The primary outcome was resectability and the secondary outcome was the FLR volume increase. RESULTS Eight studies comparing PVE/HVE with PVE and six retrospective PVE/HVE case series were included. Pooled resectability within the comparative studies was 75 per cent in the PVE group (n = 252) versus 87 per cent in the PVE/HVE group (n = 166, OR 1.92 (95% c.i., 1.13-3.25)) favouring PVE/HVE (P = 0.015). After PVE, FLR hypertrophy between 12 per cent and 48 per cent (after a median of 21-30 days) was observed, whereas growth between 36 per cent and 67 per cent was reported after PVE/HVE (after a median of 17-31 days). In the comparative studies, 90-day primary cause of death was similar between groups (2.5 per cent after PVE versus 2.2 per cent after PVE/HVE), but a higher 90-day primary cause of death was reported in single-arm PVE/HVE cohort studies (6.9 per cent, 12 of 175 patients). CONCLUSION Based on moderate/weak evidence, PVE/HVE seems to increase resectability of bi-lobar liver tumours with a comparable safety profile. Additionally, PVE/HVE resulted in faster and more pronounced hypertrophy compared with PVE alone.
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Affiliation(s)
- Remon Korenblik
- Correspondence to: R. K., Universiteigssingel 50 (room 5.452) 6229 ER Maastricht, The Netherlands (e-mail: ); R. M. v. D., Maastricht UMC+, Dept. of Surgery, Level 4, PO Box 5800, 6202 AZ Maastricht, The Netherlands (e-mail: )
| | - Jasper F J A van Zon
- Department of Surgery, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Bram Olij
- Department of Surgery, Maastricht University Medical Center, Maastricht, The Netherlands,GROW—Department of Surgery, School for Oncology and Reproduction, Maastricht University, Maastricht, The Netherlands,Department of General, Visceral and Transplant Surgery, University Hospital RWTH Aachen, Aachen, Germany
| | - Jan Heil
- Department of General, Visceral and Transplant Surgery, University Hospital Frankfurt, Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Maxime J L Dewulf
- Department of Surgery, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Ulf P Neumann
- Department of Surgery, Maastricht University Medical Center, Maastricht, The Netherlands,Department of General, Visceral and Transplant Surgery, University Hospital RWTH Aachen, Aachen, Germany
| | - Steven W M Olde Damink
- Department of Surgery, Maastricht University Medical Center, Maastricht, The Netherlands,Department of General, Visceral and Transplant Surgery, University Hospital RWTH Aachen, Aachen, Germany,NUTRIM—Department of Surgery, School of Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, The Netherlands
| | - Christoph A Binkert
- Department of Radiology, Cantonal Hospital Winterthur, Winterthur, Switzerland
| | - Erik Schadde
- Department of General, Visceral and Transplant Surgery, Klinik Hirslanden, Zurich, Switzerland,Department of General, Visceral and Transplant Surgery, Hirslanden Klink St. Anna Luzern, Luzern, Switzerland
| | | | - Ronald M van Dam
- Correspondence to: R. K., Universiteigssingel 50 (room 5.452) 6229 ER Maastricht, The Netherlands (e-mail: ); R. M. v. D., Maastricht UMC+, Dept. of Surgery, Level 4, PO Box 5800, 6202 AZ Maastricht, The Netherlands (e-mail: )
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5
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Korenblik R, Olij B, Aldrighetti LA, Hilal MA, Ahle M, Arslan B, van Baardewijk LJ, Baclija I, Bent C, Bertrand CL, Björnsson B, de Boer MT, de Boer SW, Bokkers RPH, Rinkes IHMB, Breitenstein S, Bruijnen RCG, Bruners P, Büchler MW, Camacho JC, Cappelli A, Carling U, Chan BKY, Chang DH, Choi J, Font JC, Crawford M, Croagh D, Cugat E, Davis R, De Boo DW, De Cobelli F, De Wispelaere JF, van Delden OM, Delle M, Detry O, Díaz-Nieto R, Dili A, Erdmann JI, Fisher O, Fondevila C, Fretland Å, Borobia FG, Gelabert A, Gérard L, Giuliante F, Gobardhan PD, Gómez F, Grünberger T, Grünhagen DJ, Guitart J, Hagendoorn J, Heil J, Heise D, Herrero E, Hess GF, Hoffmann MH, Iezzi R, Imani F, Nguyen J, Jovine E, Kalff JC, Kazemier G, Kingham TP, Kleeff J, Kollmar O, Leclercq WKG, Ben SL, Lucidi V, MacDonald A, Madoff DC, Manekeller S, Martel G, Mehrabi A, Mehrzad H, Meijerink MR, Menon K, Metrakos P, Meyer C, Moelker A, Modi S, Montanari N, Navines J, Neumann UP, Peddu P, Primrose JN, Qu X, Raptis D, Ratti F, Ridouani F, Rogan C, Ronellenfitsch U, Ryan S, Sallemi C, Moragues JS, Sandström P, Sarriá L, Schnitzbauer A, Serenari M, Serrablo A, Smits MLJ, Sparrelid E, Spüntrup E, Stavrou GA, Sutcliffe RP, Tancredi I, Tasse JC, Udupa V, Valenti D, Fundora Y, Vogl TJ, Wang X, White SA, Wohlgemuth WA, Yu D, Zijlstra IAJ, Binkert CA, Bemelmans MHA, van der Leij C, Schadde E, van Dam RM. Dragon 1 Protocol Manuscript: Training, Accreditation, Implementation and Safety Evaluation of Portal and Hepatic Vein Embolization (PVE/HVE) to Accelerate Future Liver Remnant (FLR) Hypertrophy. Cardiovasc Intervent Radiol 2022; 45:1391-1398. [PMID: 35790566 PMCID: PMC9458562 DOI: 10.1007/s00270-022-03176-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 05/08/2022] [Indexed: 12/02/2022]
Abstract
STUDY PURPOSE The DRAGON 1 trial aims to assess training, implementation, safety and feasibility of combined portal- and hepatic-vein embolization (PVE/HVE) to accelerate future liver remnant (FLR) hypertrophy in patients with borderline resectable colorectal cancer liver metastases. METHODS The DRAGON 1 trial is a worldwide multicenter prospective single arm trial. The primary endpoint is a composite of the safety of PVE/HVE, 90-day mortality, and one year accrual monitoring of each participating center. Secondary endpoints include: feasibility of resection, the used PVE and HVE techniques, FLR-hypertrophy, liver function (subset of centers), overall survival, and disease-free survival. All complications after the PVE/HVE procedure are documented. Liver volumes will be measured at week 1 and if applicable at week 3 and 6 after PVE/HVE and follow-up visits will be held at 1, 3, 6, and 12 months after the resection. RESULTS Not applicable. CONCLUSION DRAGON 1 is a prospective trial to assess the safety and feasibility of PVE/HVE. Participating study centers will be trained, and procedures standardized using Work Instructions (WI) to prepare for the DRAGON 2 randomized controlled trial. Outcomes should reveal the accrual potential of centers, safety profile of combined PVE/HVE and the effect of FLR-hypertrophy induction by PVE/HVE in patients with CRLM and a small FLR. TRIAL REGISTRATION Clinicaltrials.gov: NCT04272931 (February 17, 2020). Toestingonline.nl: NL71535.068.19 (September 20, 2019).
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Affiliation(s)
- R Korenblik
- GROW School for Oncology and Developmental Biology, Maastricht University, Maastricht Universiteitssingel 40 room 5.452, 6229 ET, Maastricht, The Netherlands.
- Department of Surgery, Maastricht University Medical Center, Maastricht, The Netherlands.
| | - B Olij
- GROW School for Oncology and Developmental Biology, Maastricht University, Maastricht Universiteitssingel 40 room 5.452, 6229 ET, Maastricht, The Netherlands
- Department of Surgery, Maastricht University Medical Center, Maastricht, The Netherlands
| | | | - M Abu Hilal
- Department of Surgery, Fondazione Poliambulanza, Brescia, Italy
| | - M Ahle
- Deparment of Radiology, University Hospital, Linköping, Sweden
| | - B Arslan
- Department of Radiology, Rush University Medical Center, Chicago, USA
| | - L J van Baardewijk
- Department of Radiology, Maxima Medisch Centrum, Eindhoven, The Netherlands
| | - I Baclija
- Department of Radiology, Clinic Favoriten, Vienna, Austria
| | - C Bent
- Department of Radiology, Bournemouth and Christuchurch, The Royal Bournemouth and Christchurch Hospitals, Bournemouth and Christuchurch, UK
| | - C L Bertrand
- Department of Surgery, CHU UCLouvain Namur, Namur, Belgium
| | - B Björnsson
- Department of Surgery, Biomedical and Clinical Sciences, Linköping University Hospital, Linköping, Sweden
| | - M T de Boer
- Department of Surgery, University Medical Center Groningen, Groningen, The Netherlands
| | - S W de Boer
- Deparment of Radiology and Nuclear Medicine, Maastricht University Medical Center, Maastricht, The Netherlands
| | - R P H Bokkers
- Department of Radiology, University Medical Center Groningen, Groningen, The Netherlands
| | - I H M Borel Rinkes
- Department of Surgery, University Medical Center Utrecht, Utrecht, The Netherlands
| | - S Breitenstein
- Department of General and Visceral Surgery, Cantonal Hospital Winterthur, Winterthur, Switzerland
| | - R C G Bruijnen
- Department of Radiology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - P Bruners
- Department of Radiology, University Hospital Aachen, Aachen, Germany
| | - M W Büchler
- Department of Surgery, University Hospital Heidelberg, Heidelberg, Germany
| | - J C Camacho
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, USA
| | - A Cappelli
- Department of Radiology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Sant'Orsola-Malpighi Hospital, Bologna, Italy
| | - U Carling
- Department of Radiology, University Hospital Oslo, Oslo, Norway
| | - B K Y Chan
- Department of Surgery, Aintree University Hospitals NHS, Liverpool, UK
| | - D H Chang
- Department of Radiology, University Hospital Heidelberg, Heidelberg, Germany
| | - J Choi
- Department of Surgery, Western Health Footscray, Footscray, Australia
| | - J Codina Font
- Department of Radiology, University Hospital Dr. Josep Trueta de Girona, Girona, Spain
| | - M Crawford
- Department of Surgery, Royal Prince Alfred Hospital, Camperdown, Australia
| | - D Croagh
- Department of Surgery, Monash Health, Clayton, Australia
| | - E Cugat
- Department of Surgery, University Hospital Germans Trias I Pujol, Badalona, Spain
| | - R Davis
- Department of Radiology, Aintree University Hospitals NHS, Liverpool, UK
| | - D W De Boo
- Department of Radiology, Monash Health, Clayton, Australia
| | - F De Cobelli
- Department of Radiology, Ospedale San Raffaele, Milan, Italy
| | | | - O M van Delden
- Department of Radiology, Amsterdam University Medical Centers Location AMC, Amsterdam, The Netherlands
| | - M Delle
- Department of Radiology, Karolinska University Hospital, Stockholm, Sweden
| | - O Detry
- Department of Surgery, CHU de Liège, Liège, Belgium
| | - R Díaz-Nieto
- Department of Surgery, Aintree University Hospitals NHS, Liverpool, UK
| | - A Dili
- Department of Surgery, CHU UCLouvain Namur, Namur, Belgium
| | - J I Erdmann
- Department of Surgery, Amsterdam University Medical Centers Location AMC, Amsterdam, The Netherlands
| | - O Fisher
- Department of Surgery, Royal Prince Alfred Hospital, Camperdown, Australia
| | - C Fondevila
- Department of Surgery, Hospital Clínic de Barcelona, Barcelona, Spain
| | - Å Fretland
- Department of Surgery, University Hospital Oslo, Oslo, Norway
| | - F Garcia Borobia
- Department of Surgery, Hospital Parc Taulí de Sabadell, Sabadell, Spain
| | - A Gelabert
- Department of Radiology, Hospital Parc Taulí de Sabadell, Sabadell, Spain
- Department of Radiology, University Hospital Mútua Terassa, Terassa, Spain
| | - L Gérard
- Department of Radiology, CHU de Liège, Liège, Belgium
| | - F Giuliante
- Department of Surgery, Gemelli University Hospital Rome, Rome, Italy
| | - P D Gobardhan
- Department of Surgery, Amphia, Breda, The Netherlands
| | - F Gómez
- Department of Radiology, Hospital Clínic de Barcelona, Barcelona, Spain
| | - T Grünberger
- Department of Surgery, HPB Center Vienna Health Network, Clinic Favoriten, Vienna, Austria
| | - D J Grünhagen
- Department of Surgery, Erasmus Medisch Centrum, Rotterdam, The Netherlands
| | - J Guitart
- Department of Radiology, University Hospital Mútua Terassa, Terassa, Spain
| | - J Hagendoorn
- Department of Surgery, University Medical Center Utrecht, Utrecht, The Netherlands
| | - J Heil
- Department of Surgery, University Hospital Frankfurt, Frankfurt, Germany
| | - D Heise
- Department of General, Visceral and Transplant Surgery, University Hospital Aachen, Aachen, Germany
| | - E Herrero
- Department of Surgery, University Hospital Mútua Terassa, Terassa, Spain
| | - G F Hess
- Department of Surgery, Clarunis University Hospital, Basel, Switzerland
| | - M H Hoffmann
- Department of Radiology, St. Clara Spital, Basel, Switzerland
| | - R Iezzi
- Department of Radiology, Gemelli University Hospital, Rome, Italy
| | - F Imani
- Department of Radiology, Amphia, Breda, The Netherlands
| | - J Nguyen
- Department of Radiology, Western Health Footscray, Footscray, Australia
| | - E Jovine
- Department of Surgery, Ospedale Maggiore di Bologna, Bologna, Italy
| | - J C Kalff
- Department of Surgery, University Hospital Bonn, Bonn, Germany
| | - G Kazemier
- Department of Surgery, Amsterdam University Medical Centers Location VU, Amsterdam, The Netherlands
| | - T P Kingham
- Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, USA
| | - J Kleeff
- Department of Surgery, University Hospital Halle (Saale), Halle, Germany
| | - O Kollmar
- Department of Surgery, Clarunis University Hospital, Basel, Switzerland
| | - W K G Leclercq
- Department of Surgery, Maxima Medisch Centrum, Eindhoven, The Netherlands
| | - S Lopez Ben
- Department of Surgery, University Hospital Dr. Josep Trueta de Girona, Girona, Spain
| | - V Lucidi
- Department of Surgery, Hôpital Erasme, Brussels, Belgium
| | - A MacDonald
- Department of Radiology, Oxford University Hospital NHS, Oxford, UK
| | - D C Madoff
- Department of Radiology, Yale School of Medicine, New Haven, USA
| | - S Manekeller
- Department of Surgery, University Hospital Bonn, Bonn, Germany
| | - G Martel
- Department of Surgery, The Ottawa Hospital, Ottawa, Canada
| | - A Mehrabi
- Department of Surgery, University Hospital Heidelberg, Heidelberg, Germany
| | - H Mehrzad
- Department of Radiology, Queen Elizabeth Hospital Birmingham NHS, Birmingham, UK
| | - M R Meijerink
- Department of Radiology, Amsterdam University Medical Centers Location VU, Amsterdam, The Netherlands
| | - K Menon
- Department of Surgery, King's College Hospital NHS, London, UK
| | - P Metrakos
- Department of Surgery, McGill University Health Centre, Montréal, Canada
| | - C Meyer
- Department of Radiology, University Hospital Bonn, Bonn, Germany
| | - A Moelker
- Department of Radiology and Nuclear Medicine, Erasmus Medisch Centrum, Rotterdam, The Netherlands
| | - S Modi
- Department of Radiology, University Hospital Southampton NHS, Southampton, UK
| | - N Montanari
- Department of Radiology, Ospedale Maggiore Di Bologna, Bologna, Italy
| | - J Navines
- Department of Surgery, University Hospital Germans Trias I Pujol, Badalona, Spain
| | - U P Neumann
- Department of Surgery, Maastricht University Medical Center, Maastricht, The Netherlands
- Department of General, Visceral and Transplant Surgery, University Hospital Aachen, Aachen, Germany
| | - P Peddu
- Department of Radiology, King's College Hospital NHS, London, UK
| | - J N Primrose
- Department of Surgery, University Hospital Southampton NHS, Southampton, UK
| | - X Qu
- Department of Radiology, Zhongshan Hospital, Fundan University, Shanghai, China
| | - D Raptis
- Department of Surgery, Royal Free Hospital NHS, London, UK
| | - F Ratti
- Department of Surgery, Ospedale San Raffaele, Milan, Italy
| | - F Ridouani
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, USA
| | - C Rogan
- Department of Radiology, Royal Prince Alfred Hospital, Camperdown, Australia
| | - U Ronellenfitsch
- Department of Surgery, University Hospital Halle (Saale), Halle, Germany
| | - S Ryan
- Department of Radiology, The Ottawa Hospital, Ottawa, Canada
| | - C Sallemi
- Department of Radiology, Fondazione Poliambulanza, Brescia, Italy
| | - J Sampere Moragues
- Department of Radiology, University Hospital Germans Trias I Pujol, Badalona, Spain
| | - P Sandström
- Department of Surgery, Biomedical and Clinical Sciences, Linköping University Hospital, Linköping, Sweden
| | - L Sarriá
- Department of Radiology, University Hospital Miguel Servet, Saragossa, Spain
| | - A Schnitzbauer
- Department of Surgery, University Hospital Frankfurt, Frankfurt, Germany
| | - M Serenari
- Department of Surgery, General Surgery and Transplant Unit, IRCCS Azienda Ospedaliero- Universitaria di Bologna, Sant'Orsola-Malpighi Hospital, Bologna, Italy
| | - A Serrablo
- Department of Surgery, University Hospital Miguel Servet, Saragossa, Spain
| | - M L J Smits
- Department of Radiology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - E Sparrelid
- Department of Surgery, Karolinska University Hospital, Stockholm, Sweden
| | - E Spüntrup
- Department of Radiology, Klinikum Saarbrücken gGmbH, Saarbrücken, Germany
| | - G A Stavrou
- Department of Surgery, Klinikum Saarbrücken gGmbH, Saarbrücken, Germany
| | - R P Sutcliffe
- Department of Surgery, Queen Elizabeth Hospital Birmingham NHS, Birmingham, UK
| | - I Tancredi
- Department of Radiology, Hôpital Erasme, Brussels, Belgium
| | - J C Tasse
- Department of Radiology, Rush University Medical Center, Chicago, USA
| | - V Udupa
- Department of Surgery, Oxford University Hospital NHS, Oxford, UK
| | - D Valenti
- Department of Radiology, McGill University Health Centre, Montréal, Canada
| | - Y Fundora
- Department of Surgery, Hospital Clínic de Barcelona, Barcelona, Spain
| | - T J Vogl
- Department of Radiology, University Hosptital Frankfurt, Frankfurt, Germany
| | - X Wang
- Department of Surgery, Zhongshan Hospital, Fundan University, Shanghai, China
| | - S A White
- Department of Surgery, Newcastle Upon Tyne Hospitals NHS, Newcastle upon Tyne, UK
| | - W A Wohlgemuth
- Department of Radiology, University Hospital Halle (Saale), Halle, Germany
| | - D Yu
- Department of Radiology, Royal Free Hospital NHS, London, UK
| | - I A J Zijlstra
- Department of Radiology, Amsterdam University Medical Centers Location VU, Amsterdam, The Netherlands
| | - C A Binkert
- Department of Radiology, Cantonal Hospital Winterthur, Winterthur, Switzerland
| | - M H A Bemelmans
- Department of Surgery, Maastricht University Medical Center, Maastricht, The Netherlands
- Department of General, Visceral and Transplant Surgery, University Hospital Aachen, Aachen, Germany
| | - C van der Leij
- Deparment of Radiology and Nuclear Medicine, Maastricht University Medical Center, Maastricht, The Netherlands
| | - E Schadde
- Department of General and Visceral Surgery, Cantonal Hospital Winterthur, Winterthur, Switzerland
- Department of Surgery, Rush University Medical Center Chicago, Chicago, USA
| | - R M van Dam
- GROW School for Oncology and Developmental Biology, Maastricht University, Maastricht Universiteitssingel 40 room 5.452, 6229 ET, Maastricht, The Netherlands.
- Department of Surgery, Maastricht University Medical Center, Maastricht, The Netherlands.
- Department of General, Visceral and Transplant Surgery, University Hospital Aachen, Aachen, Germany.
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6
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Han J, Feng W, Yao R, Yang L, Qu X. MiR-30a-centered molecular crosstalk regulates Th17 differentiation. Cell Mol Immunol 2022; 19:960-961. [PMID: 35732913 PMCID: PMC9338018 DOI: 10.1038/s41423-022-00888-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Accepted: 05/26/2022] [Indexed: 11/09/2022] Open
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7
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Qu W, Jiang Z, Liu Z, Zhu L, Chen X, Liu B, Zhao Y, Li S, Yan H, Qu X, Zang A, Sun Y, Zhou A. P-246 Real-world outcomes in metastatic colorectal patients receiving regorafenib treatment in China. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.04.336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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8
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Jin J, Luo RK, Zhao J, Ning YQ, Qu X, Tao XR, Zhou X. [Prevalence and frequencies of human papilloma virus types in adenocarcinoma in situ of the uterine cervix]. Zhonghua Bing Li Xue Za Zhi 2022; 51:338-343. [PMID: 35359046 DOI: 10.3760/cma.j.cn112151-20210817-00578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To examine the prevalence and frequencies of human papillomavirus (HPV) genotypes in cervical adenocarcinoma in situ (AIS). Methods: The cases of cervical AIS with concurrent tests of cytology and HPV typing from January 2007 to February 2020 in the Obstetrics and Gynecology Hospital of Fudan University were collected and analyzed. Results: A total of 478 cases of cervical AIS were obtained. The average age of the patients was 39.4 years (range, 19-81 years). The largest age group was 30-39 years (44.8%), followed by 40-49 years (34.7%). Among the 478 patients, 355 underwent high-risk HPV (hrHPV) testing and had a hrHPV-positive rate of 93.8%. Of the 355 patients, 277 also underwent HPV typing and were mostly positive for either or both HPV16 and HPV18 (93.1%), with 55.6% positive for HPV18 and 48.7% positive for HPV16. Among the 478 cases, 266 cases (55.6%) were diagnosed with both AIS and squamous intraepithelial lesion (SIL), while 212 cases (44.4%) were diagnosed with only AIS. Patients infected with HPV16 in the AIS and SIL group significantly outnumbered those in the AIS alone group (P<0.05). Moreover, the rate of positive cytology was 55.9% (167/299 cases), while that of negative cytology was 44.1% (132/299). Among the 109 patients with negative cytology results and co-tested hrHPV, there were 101 HPV-positive cases (92.7%), of which 88 cases were subject to HPV typing and showed an HPV16/18 positive rate of 94.3% (83/88 cases). Conclusions: The combination of HPV typing and cytological screening can maximize the detection rate of cervical AIS, and should continue to be utilized, ideally on a larger scale, in the future.
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Affiliation(s)
- J Jin
- Department of Pathology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200011, China
| | - R K Luo
- Department of Pathology, Zhongshan Hospital of Fudan University, Shanghai 200032, China
| | - J Zhao
- Department of Pathology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200011, China
| | - Y Q Ning
- Department of Pathology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200011, China
| | - X Qu
- Department of Pathology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200011, China
| | - X R Tao
- Department of Pathology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200011, China
| | - Xianrong Zhou
- Department of Pathology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200011, China
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9
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Qu X, Liu Y, Teng Z, Zhang Y, Zheng D, Man L, Wang Z, Wang Y, Zhang J, Zhang H, Liu J, Chen H, Xiao W, Jiang Y, Zhang J, Liu S, Wang C. 422P The efficacy and safety of irinotecan plus raltitrexed as second-line treatment in advanced colorectal cancer (ACC) patients: A summary analysis of a multicenter, phase II trial. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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10
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Liu Y, Wang Y, Yuan W, Dong F, Zhen F, Liu J, Yang L, Qu X, Yao R. Reelin promotes oligodendrocyte precursors migration via the Wnt/β-catenin signaling pathway. Neurol Res 2021; 43:543-552. [PMID: 33616025 DOI: 10.1080/01616412.2021.1888604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Accepted: 02/07/2021] [Indexed: 10/22/2022]
Abstract
Objectives: The extracellular matrix glycoprotein Reelin plays an important role in the development of the central nervous system and is involved in neurogenesis, neuronal polarization and migration. Although it has been reported that Reelin and its receptor are expressed in oligodendrocyte precursors (OPCs), the main functions and possible mechanism of Reelin in OPCs remain unclear.Methods: In this study, immunofluorescence staining was used to detect the expressions of A2B5, PDGFRα, Reelin, VLDLR and Dab1 in OPCs. The expression of p-Dab1 in OPCs which was treated with Reelin at different concentrations was assayed by western blot. Effects of Reelin on the proliferation of OPCs was measured by EdU and CCK-8. Annexin V-FITC/PI assayed the effect of Reelin on the apoptosis of OPCs. Effects of Reelin on the migration ability of OPCs were detected by the scratch test and transwell experiments. Immunoblotting was used to measure the activation of Wnt/β-catenin signaling with Reelin, while transwell experiments were performed to verify the migration of OPCs under the activation of Wnt/β-catenin signaling.Results: Results showed that the receptor of Reelin, very-low-density lipoprotein receptor (VLDLR), and its adaptor protein, Dab1, are highly expressed in A2B5/PDGFRα double-positive OPCs. Recombinant Reelin protein promoted OPCs migration in vitro but had no obvious effects on proliferation or apoptosis. Reelin also promoted the phosphorylation of Dab1 and increased the expression of β-catenin in OPCs. WIKI4, an inhibitor of Wnt/β-catenin signaling, suppressed the migration of OPCs induced by Reelin.Conclusion: The present study indicated that Reelin promotes OPCs migration via the Wnt/β-catenin pathway.
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Affiliation(s)
- Yaping Liu
- Laboratory of National Experimental Teaching and Demonstration Center of Basic Medicine, Xuzhou Medical University, Xuzhou, Jiangsu, PRC
| | - Yuanyuan Wang
- Pediatrics, Nanjing Tongren Hospital, Nanjing, Jiangsu, PRC
| | - Wen Yuan
- Department of Cell Biology and Neurobiology, Xuzhou Key Laboratory of Neurobiology, Xuzhou Medical University, Xuzhou, Jiangsu, PRC
| | - Fuxing Dong
- Department of Cell Biology and Neurobiology, Xuzhou Key Laboratory of Neurobiology, Xuzhou Medical University, Xuzhou, Jiangsu, PRC
| | - Fei Zhen
- Department of Pathology, Hongze District People's Hospital, Huai 'an, Jiangsu, PRC
| | - Jing Liu
- Department of Cell Biology and Neurobiology, Xuzhou Key Laboratory of Neurobiology, Xuzhou Medical University, Xuzhou, Jiangsu, PRC
| | - Lihua Yang
- Department of Cell Biology and Neurobiology, Xuzhou Key Laboratory of Neurobiology, Xuzhou Medical University, Xuzhou, Jiangsu, PRC
| | - Xuebin Qu
- Department of Cell Biology and Neurobiology, Xuzhou Key Laboratory of Neurobiology, Xuzhou Medical University, Xuzhou, Jiangsu, PRC
| | - Ruiqin Yao
- Department of Cell Biology and Neurobiology, Xuzhou Key Laboratory of Neurobiology, Xuzhou Medical University, Xuzhou, Jiangsu, PRC
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11
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Meng X, Wei M, Wang D, Qu X, Zhang K, Zhang N, Li X. The protective effect of hesperidin against renal ischemia-reperfusion injury involves the TLR-4/NF-κB/iNOS pathway in rats. Physiol Int 2021; 107:82-91. [PMID: 32491283 DOI: 10.1556/2060.2020.00003] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2019] [Accepted: 12/13/2019] [Indexed: 11/19/2022]
Abstract
Renal injury is reported to have a high mortality rate. Additionally, there are several limitations to current conventional treatments that are used to manage it. This study evaluated the protective effect of hesperidin against ischemia/reperfusion (I/R)-induced kidney injury in rats. Renal injury was induced by generating I/R in kidney tissues. Rats were then treated with hesperidin at a dose of 10 or 20 mg/kg intravenously 1 day after surgery for a period of 14 days. The effect of hesperidin on renal function, serum mediators of inflammation, and levels of oxidative stress in renal tissues were observed in rat kidney tissues after I/R-induced kidney injury. Moreover, protein expression and mRNA expression in kidney tissues were determined using Western blotting and RT-PCR. Hematoxylin and eosin (H&E) staining was done for histopathological observation of kidney tissues. The data suggest that the levels of blood urea nitrogen (BUN) and creatinine in the serum of hesperidin-treated rats were lower than in the I/R group. Treatment with hesperidin also ameliorated the altered level of inflammatory mediators and oxidative stress in I/R-induced renal-injured rats. The expression of p-IκBα, caspase-3, NF-κB p65, Toll-like receptor 4 (TLR-4) protein, TLR-4 mRNA, and inducible nitric oxide synthase (iNOS) was significantly reduced in the renal tissues of hesperidin-treated rats. Histopathological findings also revealed that treatment with hesperidin attenuated the renal injury in I/R kidney-injured rats. In conclusion, our results suggest that hesperidin protects against renal injury induced by I/R by involving TLR-4/NF-κB/iNOS signaling.
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Affiliation(s)
- X Meng
- Department of Nephrology, Affiliated Hospital of Jining Medical University, Jining, Shandong, 272001, PR China
| | - M Wei
- Department of Nephrology, Affiliated Hospital of Jining Medical University, Jining, Shandong, 272001, PR China
| | - D Wang
- Department of Nephrology, Affiliated Hospital of Jining Medical University, Jining, Shandong, 272001, PR China
| | - X Qu
- Department of Nephrology, Affiliated Hospital of Jining Medical University, Jining, Shandong, 272001, PR China
| | - K Zhang
- Department of Nephrology, Affiliated Hospital of Jining Medical University, Jining, Shandong, 272001, PR China
| | - N Zhang
- Department of Nephrology, Affiliated Hospital of Jining Medical University, Jining, Shandong, 272001, PR China
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12
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Gao GX, Wang ZH, Liu WH, Xie F, Xu W, Gang TR, Wu SS, Qu X. [Clinical application of single-port inflatable endoscopic nipple sparing mastectomy with immediate reconstruction using prosthesis implantation]. Zhonghua Wai Ke Za Zhi 2021; 59:121-126. [PMID: 33378804 DOI: 10.3760/cma.j.cn112139-20200916-00707] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To examine the clinical application value of single-port inflatable endoscopic nipple sparing mastectomy with immediate reconstruction using prosthesis implantation in the treatment of early breast cancer. Methods: From February 2014 to July 2019, the clinic-pathological data of 34 early breast cancer patients received single-port inflatable endoscopic nipple sparing mastectomy with immediate reconstruction using prosthesis implantation at Department of General Surgery, Beijing Friendship Hospital, Capital Medical University were retrospectively analyzed and followed up. All the patients were female, with an age of 46(11) years (M(QR)) (range: 26 to 64 years). The radical cure degree of operation, cosmetic effect after operation were evaluated. The satisfaction to operation and personal quality of life after operation was accessed by BREAST-Q scale. Results: All surgical procedures were successfully completed. The operation time was (313.4±11.7) minutes (range: 200 to 485 minutes). The blooding-liquid was (33.8±3.3) ml (range: 10 to 100 ml). There were 5 cases (14.7%) of nipple areola necrosis after operation, of which 1 patient received taking the prosthesis out because of prosthesis exposure. There was no capsular contracture or postoperative bleeding case. The follow-up time was 35(17) months (range: 12 to 77 months), and there was one case suffering local recurrence and metastasis, and another suffering metastasis. The scores of postoperative breast satisfaction, psychosocial status, chest wall status and sexual health were 78.32±2.57 (range: 55 to 100), 89.12±2.30 (range: 82 to 100), 91.47±1.33 (range: 43 to 100), and 78.50±2.68 (range: 39 to 100). Conclusion: Single-port inflatable endoscopic nipple sparing mastectomy with immediate reconstruction using prosthesis implantation in the treatment of early breast cancer can achieve provided curative and cosmetic effect on patients with breast cancer, with good patients' postoperative quality of life and satisfaction.
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Affiliation(s)
- G X Gao
- Department of General Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - Z H Wang
- Department of General Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - W H Liu
- Department of Surgery, Huairou Maternal and Child Health Care Hospital, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing 101400, China
| | - F Xie
- Department of Breast Surgery, Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing 100010, China
| | - W Xu
- Department of General Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - T R Gang
- Department of General Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - S S Wu
- Department of Clinical Epidemiology and Evidence-Based Medicine, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - X Qu
- Department of General Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
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13
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Liu Y, Fan H, Li X, Liu J, Qu X, Wu X, Liu M, Liu Z, Yao R. Trpv4 regulates Nlrp3 inflammasome via SIRT1/PGC-1α pathway in a cuprizone-induced mouse model of demyelination. Exp Neurol 2020; 337:113593. [PMID: 33387462 DOI: 10.1016/j.expneurol.2020.113593] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 11/28/2020] [Accepted: 12/27/2020] [Indexed: 12/29/2022]
Abstract
Increasing evidence has demonstrated that the Nod-like receptor pyrin domain containing 3 (Nlrp3) inflammasome overactivated during demyelinating disorders. It has been implicated that transient receptor potential type 4 (Trpv4) is regarded as a polymodal ionotropic receptor that plays an important role in a multitude of pathological conditions, including inflammation. The aim of this study was to investigate whether the Trpv4 channel regulates Nlrp3 inflammasome in the corpus callosum of mice with demyelination. Our results showed that CPZ treatment significantly increased the expression of Trpv4, activated Nlrp3 inflammasome, reduced peroxisome proliferator-activated receptor gamma coactivator 1α (PGC-1α) and decreased mitochondrial function. siRNA-mediated Nlrp3 knockdown inhibited glial activation and alleviated demyelination. Whereas knockdown of Trpv4 by siRNA markedly ameliorated Nlrp3 inflammasome activation and restored mitochondrial function as well as reducing the level of reactive oxygen species (ROS). Meanwhile, glial activation, demyelination and behavioral impairment induced by CPZ were also alleviated by siRNA-mediated Trpv4 knockdown. Furthermore, immunoprecipitation and use of a lysine acetylation assay showed that Sirtuin1 (SIRT1) mediated the PGC-1α deacetylation, which is involved in Nlrp3 inflammasome activation. These findings suggest that Trpv4 regulates mitochondrial function through the SIRT1/PGC-1α pathway, which further trigger Nlrp3 inflammasome activation in the CPZ-induced demyelination in mice.
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Affiliation(s)
- Yanan Liu
- Department of Cell Biology and Neurobiology, Xuzhou Key Laboratory of Neurobiology, Xuzhou Medical University, Xuzhou 221004, PR China; Department of Human Anatomy, Xuzhou Medical University, Xuzhou 221004, PR China
| | - Hongbin Fan
- Department of Cell Biology and Neurobiology, Xuzhou Key Laboratory of Neurobiology, Xuzhou Medical University, Xuzhou 221004, PR China; Department of Neurology, Affiliated Hospital of Xuzhou Medical University, Xuzhou 221002, PR China
| | - Xinyu Li
- Department of Cell Biology and Neurobiology, Xuzhou Key Laboratory of Neurobiology, Xuzhou Medical University, Xuzhou 221004, PR China; Department of Neurology, Affiliated Hospital of Xuzhou Medical University, Xuzhou 221002, PR China
| | - Jing Liu
- Department of Cell Biology and Neurobiology, Xuzhou Key Laboratory of Neurobiology, Xuzhou Medical University, Xuzhou 221004, PR China; Department of Neurology, Affiliated Hospital of Xuzhou Medical University, Xuzhou 221002, PR China
| | - Xuebin Qu
- Department of Cell Biology and Neurobiology, Xuzhou Key Laboratory of Neurobiology, Xuzhou Medical University, Xuzhou 221004, PR China
| | - Xiuxiang Wu
- Department of Cell Biology and Neurobiology, Xuzhou Key Laboratory of Neurobiology, Xuzhou Medical University, Xuzhou 221004, PR China
| | - Meiying Liu
- Department of Human Anatomy, Xuzhou Medical University, Xuzhou 221004, PR China
| | - Zhian Liu
- Department of Human Anatomy, Xuzhou Medical University, Xuzhou 221004, PR China
| | - Ruiqin Yao
- Department of Cell Biology and Neurobiology, Xuzhou Key Laboratory of Neurobiology, Xuzhou Medical University, Xuzhou 221004, PR China.
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14
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Luan YJ, Liu SH, Sun YG, Qu X, Wei FC, Xu Y, Yang PS. Whole genome expression microarray reveals novel roles for Kif4 in monocyte/macrophage cells. Eur Rev Med Pharmacol Sci 2020; 23:7016-7023. [PMID: 31486502 DOI: 10.26355/eurrev_201908_18743] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Kinesin superfamily member 4 (Kif4), a conventional kinesin, is a microtubule-dependent molecular motor. The active movement of Kif4 participates in several cellular functions, including DNA repair, mitosis, the transport of macromolecules, survival of neurons and even tumorigenesis and progression. However, the role of Kif4 in monocyte/macrophage cells has not been reported. Our work aimed to increase understanding and further investigations of Kif4 in monocyte/macrophage cells. MATERIALS AND METHODS RAW264.7 cells were transfected with Kif4 small interfering RNA (siRNA), and whole genome expression microarray analysis was employed to analyze gene expression after cells treatment with or without Kif4 siRNA. RESULTS Our data found multiple differentially expressed genes which were enriched in the top 5 biological processes about innate immune response, immune response, response to interferon-beta, immune system process and cellular response to interferon-beta. 23 most significant pathways had been identified and enriched pathways indicated enrichment in peroxisome, lysosome, fatty acid metabolism, cell adhesion molecules and so on. CONCLUSIONS Our work may help understand the roles of Kif4 in monocyte/macrophage cells and would give useful information on basic research and the function of monocyte/macrophage cells.
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Affiliation(s)
- Y-J Luan
- Department of Periodontology, School and Hospital of Stomatology, Shandong University & Shandong Provincial Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, Shandong Province, China.
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15
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Li J, Qu X, Chen Y, Hua K. Learning Curves and Influencing Factors of Laparoscopic Single-Site Myomectomy (LESS-M). J Minim Invasive Gynecol 2020. [DOI: 10.1016/j.jmig.2020.08.388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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16
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Dong F, Liu D, Jiang F, Liu Y, Wu X, Qu X, Liu J, Chen Y, Fan H, Yao R. Conditional Deletion of Foxg1 Alleviates Demyelination and Facilitates Remyelination via the Wnt Signaling Pathway in Cuprizone-Induced Demyelinated Mice. Neurosci Bull 2020; 37:15-30. [PMID: 33015737 PMCID: PMC7811968 DOI: 10.1007/s12264-020-00583-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2020] [Accepted: 05/31/2020] [Indexed: 12/13/2022] Open
Abstract
The massive loss of oligodendrocytes caused by various pathological factors is a basic feature of many demyelinating diseases of the central nervous system (CNS). Based on a variety of studies, it is now well established that impairment of oligodendrocyte precursor cells (OPCs) to differentiate and remyelinate axons is a vital event in the failed treatment of demyelinating diseases. Recent evidence suggests that Foxg1 is essential for the proliferation of certain precursors and inhibits premature neurogenesis during brain development. To date, very little attention has been paid to the role of Foxg1 in the proliferation and differentiation of OPCs in demyelinating diseases of the CNS. Here, for the first time, we examined the effects of Foxg1 on demyelination and remyelination in the brain using a cuprizone (CPZ)-induced mouse model. In this work, 7-week-old Foxg1 conditional knockout and wild-type (WT) mice were fed a diet containing 0.2% CPZ w/w for 5 weeks, after which CPZ was withdrawn to enable remyelination. Our results demonstrated that, compared with WT mice, Foxg1-knockout mice exhibited not only alleviated demyelination but also accelerated remyelination of the demyelinated corpus callosum. Furthermore, we found that Foxg1 knockout decreased the proliferation of OPCs and accelerated their differentiation into mature oligodendrocytes both in vivo and in vitro. Wnt signaling plays a critical role in development and in a variety of diseases. GSK-3β, a key regulatory kinase in the Wnt pathway, regulates the ability of β-catenin to enter nuclei, where it activates the expression of Wnt target genes. We then used SB216763, a selective inhibitor of GSK-3β activity, to further demonstrate the regulatory mechanism by which Foxg1 affects OPCs in vitro. The results showed that SB216763 clearly inhibited the expression of GSK-3β, which abolished the effect of the proliferation and differentiation of OPCs caused by the knockdown of Foxg1. These results suggest that Foxg1 is involved in the proliferation and differentiation of OPCs through the Wnt signaling pathway. The present experimental results are some of the first to suggest that Foxg1 is a new therapeutic target for the treatment of demyelinating diseases of the CNS.
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Affiliation(s)
- Fuxing Dong
- Department of Cell Biology and Neurobiology, Xuzhou Key Laboratory of Neurobiology, Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, 221004, China
- Public Experimental Research Center, Xuzhou Medical University, Xuzhou, 221004, China
| | - Dajin Liu
- Department of Cell Biology and Neurobiology, Xuzhou Key Laboratory of Neurobiology, Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, 221004, China
| | - Feiyu Jiang
- Department of Cell Biology and Neurobiology, Xuzhou Key Laboratory of Neurobiology, Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, 221004, China
| | - Yaping Liu
- Department of Cell Biology and Neurobiology, Xuzhou Key Laboratory of Neurobiology, Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, 221004, China
| | - Xiuxiang Wu
- Department of Cell Biology and Neurobiology, Xuzhou Key Laboratory of Neurobiology, Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, 221004, China
| | - Xuebin Qu
- Department of Cell Biology and Neurobiology, Xuzhou Key Laboratory of Neurobiology, Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, 221004, China
| | - Jing Liu
- Department of Cell Biology and Neurobiology, Xuzhou Key Laboratory of Neurobiology, Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, 221004, China
| | - Yan Chen
- Department of Cell Biology and Neurobiology, Xuzhou Key Laboratory of Neurobiology, Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, 221004, China
| | - Hongbin Fan
- Department of Neurology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221006, China.
| | - Ruiqin Yao
- Department of Cell Biology and Neurobiology, Xuzhou Key Laboratory of Neurobiology, Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, 221004, China.
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Qu X, Xu Z, Lin X. Effects of different doses of methylprednisolone on TNF-α, IL-6, and IL-13 in serum and bronchoalveolar lavage fluid of children with severe mycoplasma pneumoniae pneumonia. J BIOL REG HOMEOS AG 2020; 34:1889-1895. [PMID: 32996302 DOI: 10.23812/20-317-l] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Affiliation(s)
- X Qu
- Department of Paediatrics, Qingdao Women and Children's Hospital, Qingdao, Shandong Province, P.R. China
| | - Z Xu
- Department of Paediatrics, Hongze District Hospital, Huai'an, Jiangsu Province, P.R. China
| | - X Lin
- Department of Paediatrics, Huai'an Maternity and Child Health Hospital of Yangzhou University, Huai'an, Jiangsu Province, P.R. China
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Argiles G, Bendell J, Kim T, Wongchenko M, DuPree K, Mahrus S, Qu X, Shi Y, Uyei A, Roberts L, Yan Y, Ciardiello F. SO-32 Biomarker analysis of the phase III IMblaze370 trial of atezolizumab plus cobimetinib or atezolizumab monotherapy vs regorafenib in third-line CRC. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.04.047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Tang Y, He H, Qu X, Cai Y, Ding W, Qiu L, Li Y. RNA interference-mediated knockdown of the transcription factor Krüppel homologue 1 suppresses vitellogenesis in Chilo suppressalis. Insect Mol Biol 2020; 29:183-192. [PMID: 31566829 DOI: 10.1111/imb.12617] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2019] [Revised: 07/02/2019] [Accepted: 09/14/2019] [Indexed: 06/10/2023]
Abstract
Vitellogenesis in holometabolous insects involves the production and secretion of vitellogenin (Vg) and other yolk protein precursors in developing oocyte by the fat body, all of which is predominantly orchestrated by juvenile hormone (JH). Krüppel homologue 1 (Kr-h1) is a zinc finger transcription factor that has been demonstrated to be a JH-early inducible gene and to contribute to reproduction. However, the exact molecular function of Kr-h1 in insect reproduction is poorly understood. In the current study, we used the notorious pest Chilo suppressalis as a model system to investigate the role of Kr-h1 in female reproduction. Cloning and sequencing C. suppressalis Kr-h1 revealed that it shares high identity with its homologues from other lepidopteran insects. Moreover, RNA interference-mediated knockdown of CsKr-h1 substantially reduced the transcription of Vg in the fat body, dramatically decreased yolk protein deposition and also impaired oocyte maturation and ovarian development, indicating that Kr-h1 is indispensable for normal vitellogenesis in C. suppressalis. Based on these results, we conclude that Kr-h1 is crucial to reproduction in insects and that targeting this gene could potentially be a new way to suppress rice pests.
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Affiliation(s)
- Y Tang
- Hunan Provincial Key Laboratory for Biology and Control of Plant Diseases and Insect Pests, College of Plant Protection, Hunan Agricultural University, Changsha, China
| | - H He
- Hunan Provincial Key Laboratory for Biology and Control of Plant Diseases and Insect Pests, College of Plant Protection, Hunan Agricultural University, Changsha, China
| | - X Qu
- Hunan Provincial Key Laboratory for Biology and Control of Plant Diseases and Insect Pests, College of Plant Protection, Hunan Agricultural University, Changsha, China
| | - Y Cai
- Hunan Provincial Key Laboratory for Biology and Control of Plant Diseases and Insect Pests, College of Plant Protection, Hunan Agricultural University, Changsha, China
| | - W Ding
- National Research Center of Engineering & Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha, China
- Hunan Provincial Engineering & Technology Research Center for Biopesticide and Formulation Processing, Changsha, China
| | - L Qiu
- Hunan Provincial Key Laboratory for Biology and Control of Plant Diseases and Insect Pests, College of Plant Protection, Hunan Agricultural University, Changsha, China
| | - Y Li
- Hunan Provincial Key Laboratory for Biology and Control of Plant Diseases and Insect Pests, College of Plant Protection, Hunan Agricultural University, Changsha, China
- National Research Center of Engineering & Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha, China
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20
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Han J, Liu Y, Zhen F, Yuan W, Zhang W, Song X, Dong F, Yao R, Qu X. STAT3 Regulates miR-384 Transcription During Th17 Polarization. Front Cell Dev Biol 2019; 7:253. [PMID: 31737624 PMCID: PMC6838002 DOI: 10.3389/fcell.2019.00253] [Citation(s) in RCA: 5] [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: 08/05/2019] [Accepted: 10/14/2019] [Indexed: 12/15/2022] Open
Abstract
MicroRNAs are powerful regulators of gene expression in physiological and pathological conditions. We previously showed that the dysregulation of miR-384 resulted in a T helper cell 17 (Th17) imbalance and contributed to the pathogenesis of experimental autoimmune encephalomyelitis, an animal model of multiple sclerosis. In this study, we evaluated the molecular mechanisms underlying the abnormal increase in miR-384. We did not detect typical CpG islands in the Mir384 promoter. Based on a bioinformatics analysis of the promoter, we identified three conserved transcription factor binding regions (RI, RII, and RIII), two of which (RII and RIII) were cis-regulatory elements. Furthermore, we showed that signal transducer and activator of transcription 3 (STAT3) bound to specific sites in RII and RIII based on chromatin immunoprecipitation, electrophoretic mobility shift assays, and site-specific mutagenesis. During Th17 polarization in vitro, STAT3 activation up-regulated miR-384, while a STAT3 phosphorylation inhibitor decreased miR-384 levels and reduced the percentage of IL-17+ cells, IL-17 secretion, and expression of the Th17 lineage marker Rorγt. Moreover, the simultaneous inhibition of STAT3 and miR-384 could further block Th17 polarization. These results indicate that STAT3, rather than DNA methylation, contributes to the regulation of miR-384 during Th17 polarization.
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Affiliation(s)
- Jingjing Han
- Department of Cell Biology and Neurobiology, Xuzhou Key Laboratory of Neurobiology, Xuzhou Medical University, Xuzhou, China.,Department of Neurology, the Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Yaping Liu
- National Demonstration Center for Experimental Basic Medical Sciences Education, Xuzhou Medical University, Xuzhou, China
| | - Fei Zhen
- Department of Cell Biology and Neurobiology, Xuzhou Key Laboratory of Neurobiology, Xuzhou Medical University, Xuzhou, China
| | - Wen Yuan
- Department of Cell Biology and Neurobiology, Xuzhou Key Laboratory of Neurobiology, Xuzhou Medical University, Xuzhou, China
| | - Wei Zhang
- Department of Cell Biology and Neurobiology, Xuzhou Key Laboratory of Neurobiology, Xuzhou Medical University, Xuzhou, China
| | - Xiaotao Song
- Department of Cell Biology and Neurobiology, Xuzhou Key Laboratory of Neurobiology, Xuzhou Medical University, Xuzhou, China
| | - Fuxing Dong
- Department of Cell Biology and Neurobiology, Xuzhou Key Laboratory of Neurobiology, Xuzhou Medical University, Xuzhou, China
| | - Ruiqin Yao
- Department of Cell Biology and Neurobiology, Xuzhou Key Laboratory of Neurobiology, Xuzhou Medical University, Xuzhou, China
| | - Xuebin Qu
- Department of Cell Biology and Neurobiology, Xuzhou Key Laboratory of Neurobiology, Xuzhou Medical University, Xuzhou, China
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Ma X, Qu X, Yang W, Wang H, Wang B, Shen M, Zhou Y, Zhang C, Sun Y, Chen J, Hu B, Gong Z, Zhang X, Pan B, Zhou J, Fan J, Yang X, Guo W. Soluble programmed death-ligand 1 indicate poor prognosis in hepatocellular carcinoma patients undergoing transcatheter arterial chemoembolization. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz247.065] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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22
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Bendell J, Lieu C, Raghav K, Argilés G, Cubillo A, Qu X, Yan Y, Merchant M, Zeuner H, Gallo J, Segal N. A phase Ib study of the safety and efficacy of atezolizumab (atezo) + bevacizumab (bev) + cobimetinib (cobi) in patients (pts) with metastatic colorectal cancer (mCRC). Ann Oncol 2019. [DOI: 10.1093/annonc/mdz246.080] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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23
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Innocenti F, Rashid N, Wancen M, Ou FS, Qu X, Denning S, Bertagnolli M, Blanke C, Venook A, Kabbarah O, Lenz H. Next-generation sequencing (NGS) in metastatic colorectal cancer (mCRC): Novel mutated genes and their effect on response to therapy (Alliance). Ann Oncol 2019. [DOI: 10.1093/annonc/mdz246.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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24
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Qu X, Han J, Zhang Y, Wang X, Fan H, Hua F, Yao R. TLR4-RelA-miR-30a signal pathway regulates Th17 differentiation during experimental autoimmune encephalomyelitis development. J Neuroinflammation 2019; 16:183. [PMID: 31561751 PMCID: PMC6764145 DOI: 10.1186/s12974-019-1579-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Accepted: 09/10/2019] [Indexed: 12/13/2022] Open
Abstract
Background Toll-like receptor 4 (TLR4) is well known for activating the innate immune system; however, it is also highly expressed in adaptive immune cells, such as CD4+ T-helper 17 (Th17) cells, which play a key role in multiple sclerosis (MS) pathology. However, the function and governing mechanism of TLR4 in Th17 remain unclear. Methods The changes of TLR4 in CD4+ T cells from MS patients and experimental autoimmune encephalomyelitis (EAE) mice were tested. TLR4-deficient (TLR4−/−) naïve T cells were induced in vitro and transferred into Rag1−/− mice to measure Th17 differentiation and EAE pathology. DNA sequence analyses combining with deletion fragments and mutation analyses, chromatin immunoprecipitation (ChIP), and electrophoretic mobility shift assay (EMSA) were used to explore the mechanism of TLR4 signaling pathway in regulating Th17 differentiation. Results The levels of TLR4 were increased in CD4+ Th17 cells both from MS patients and EAE mice, as well as during Th17 differentiation in vitro. TLR4−/− CD4+ naïve T cells inhibited their differentiation into Th17, and transfer of TLR4−/− CD4+ naïve T cells into Rag1−/− mice was defective in promoting EAE, characterized by less demyelination and Th17 infiltration in the spinal cord. TLR4 signal enhanced Th17 differentiation by activating RelA, downregulating the expression of miR-30a, a negative regulator of Th17 differentiation. Inhibition of RelA activity increased miR-30a level, but decreased Th17 differentiation rate. Furthermore, RelA directly regulated the expression of miR-30a via specific binding to a conserved element of miR-30a gene. Conclusions TLR4−/− CD4+ naïve T cells are inadequate in differentiating to Th17 cells both in vitro and in vivo. TLR4-RelA-miR-30a signal pathway regulates Th17 differentiation via direct binding of RelA to the regulatory element of miR-30a gene. Our results indicate modulating TLR4-RelA-miR-30a signal in Th17 may be a therapeutic target for Th17-mediated neurodegeneration in neuroinflammatory diseases.
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Affiliation(s)
- Xuebin Qu
- Department of Cell Biology and Neurobiology, Xuzhou Key Laboratory of Neurobiology, Xuzhou Medical University, Xuzhou, 221009, Jiangsu, People's Republic of China.
| | - Jingjing Han
- Department of Neurology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221002, Jiangsu, China
| | - Ying Zhang
- Department of Cell Biology and Neurobiology, Xuzhou Key Laboratory of Neurobiology, Xuzhou Medical University, Xuzhou, 221009, Jiangsu, People's Republic of China
| | - Xingqi Wang
- School of Life Science, Jiangsu Normal University, Xuzhou, 221116, Jiangsu, China
| | - Hongbin Fan
- Department of Neurology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221002, Jiangsu, China
| | - Fang Hua
- Department of Neurology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221002, Jiangsu, China.,Institute of Neurological Diseases of Xuzhou Medical University, Xuzhou, 221002, Jiangsu, China
| | - Ruiqin Yao
- Department of Cell Biology and Neurobiology, Xuzhou Key Laboratory of Neurobiology, Xuzhou Medical University, Xuzhou, 221009, Jiangsu, People's Republic of China.
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Liu X, Xu M, Qu X, Guo S, Liu Y, He C, He J, Liu W. Molecular cloning, characterisation, and expression analysis of adipocyte fatty acid binding protein gene in Xupu goose ( Anser cygnoides domesticus). Br Poult Sci 2019; 60:659-665. [PMID: 31509442 DOI: 10.1080/00071668.2019.1655709] [Citation(s) in RCA: 3] [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] [Indexed: 12/30/2022]
Abstract
1. Adipocyte fatty acid binding protein (A-FABP) plays a key role in fatty acid uptake and intracellular transport. The objective of the present study was to identify and characterise the A-FABP gene in Xupu goose.2. The full-length cDNA of goose A-FABP gene was cloned from the liver tissue using reverse transcription polymerase chain reaction (RT-PCR) and rapid amplification of cDNA ends (RACE). The distribution of the goose A-FABP in different tissues was determined by quantitative real-time PCR (qRT-PCR).3. The results showed that the full-length cDNA sequence of goose A-FABP was 657 bp, containing a 5'-UTR of 52 bp, a 3'-UTR of 206 bp and an open reading frame (ORF) of 399 bp, which encoded a polypeptide of 132 amino acids (AA).4. The AA sequence of goose A-FABP showed 76.52%, 75.00%, 93.18% and 99.24% identities with previously described homologues from humans (Homo sapiens), mouse (Mus musculus), chicken (Gallus gallus), and duck (Anas platyrhynchos), respectively, and phylogenetic analysis revealed a close relationship among them. The transcript of Xupu goose A-FABP was ubiquitously expressed in all tested tissues, and showed a high-level expression in abdominal fat, sebum and liver.5. A significant positive correlation was identified between A-FABP mRNA abundance in the three adipose tissues and liver weight, ratio of liver to body weight, TG content, and VLDL concentration in the plasma of Xupu goose. A significant negative correlation was observed between the mRNA level of A-FABP and HDL concentration in the plasma of Xupu goose.6. These findings provide a foundation for further research on the function and mechanism of A-FABP in the fat deposition process.
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Affiliation(s)
- X Liu
- College of Animal Science and Technology, Hunan Agricultural University, Changsha, Hunan, China.,College of Animal Science and Technology, Hunan Engineering Research Center of Poultry Production Safety, Changsha, Hunan, China.,College of Animal Science and Technology, Hunan Co-Innovation Center of Animal Production Safety, Changsha, Hunan, China
| | - M Xu
- College of Animal Science and Technology, Hunan Agricultural University, Changsha, Hunan, China.,College of Animal Science and Technology, Hunan Engineering Research Center of Poultry Production Safety, Changsha, Hunan, China.,College of Animal Science and Technology, Hunan Co-Innovation Center of Animal Production Safety, Changsha, Hunan, China
| | - X Qu
- College of Animal Science and Technology, Hunan Agricultural University, Changsha, Hunan, China.,College of Animal Science and Technology, Hunan Engineering Research Center of Poultry Production Safety, Changsha, Hunan, China.,College of Animal Science and Technology, Hunan Co-Innovation Center of Animal Production Safety, Changsha, Hunan, China
| | - S Guo
- College of Animal Science and Technology, Hunan Agricultural University, Changsha, Hunan, China.,College of Animal Science and Technology, Hunan Engineering Research Center of Poultry Production Safety, Changsha, Hunan, China.,College of Animal Science and Technology, Hunan Co-Innovation Center of Animal Production Safety, Changsha, Hunan, China
| | - Y Liu
- College of Animal Science and Technology, Hunan Agricultural University, Changsha, Hunan, China.,College of Animal Science and Technology, Hunan Engineering Research Center of Poultry Production Safety, Changsha, Hunan, China.,College of Animal Science and Technology, Hunan Co-Innovation Center of Animal Production Safety, Changsha, Hunan, China
| | - C He
- College of Animal Science and Technology, Hunan Agricultural University, Changsha, Hunan, China.,College of Animal Science and Technology, Hunan Engineering Research Center of Poultry Production Safety, Changsha, Hunan, China.,College of Animal Science and Technology, Hunan Co-Innovation Center of Animal Production Safety, Changsha, Hunan, China
| | - J He
- College of Animal Science and Technology, Hunan Agricultural University, Changsha, Hunan, China.,College of Animal Science and Technology, Hunan Engineering Research Center of Poultry Production Safety, Changsha, Hunan, China.,College of Animal Science and Technology, Hunan Co-Innovation Center of Animal Production Safety, Changsha, Hunan, China
| | - W Liu
- Scientific Research Department, Hunan Hongyu Xupu Goose Development Co., Ltd, Huaihua, Hunan, China
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Zhang H, Qu X, Wang H, Tang K. Early life famine exposure to the Great Chinese Famine in 1959-1961 and subsequent pregnancy loss: a population-based study. BJOG 2019; 127:39-45. [PMID: 31444892 DOI: 10.1111/1471-0528.15908] [Citation(s) in RCA: 5] [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] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/15/2019] [Indexed: 11/29/2022]
Abstract
OBJECTIVE To explore the relation between famine exposure in early life and subsequent pregnancy loss, including stillbirth, and spontaneous abortion in adulthood. DESIGN A population-based, partly ecological study. SETTING AND POPULATION Individual data of 58 601 females born around the time of the Great Chinese Famine in 1959-1961. METHODS Associations between the famine exposure in early life and pregnancy loss (stillbirth and spontaneous abortion) in adulthood were analysed using negative binomial regression, with the non-exposure group as reference, adjusting for region, highest education, monthly income, alcohol consumption, tobacco use, body mass index in 25-year-olds and metabolic equivalent. Further analyses were stratified by rural versus urban region. MAIN OUTCOME MEASURES Continuous variables of times of stillbirths and spontaneous abortions were used according to the individual self-reported reproductive history. RESULTS No association was found between famine exposure and spontaneous abortion. In contrast, females experiencing the famine during their prenatal period (incidence rate ratio = 1.15, 95% CI 1.00-1.33) or infant period (incidence rate ratio = 1.27, 95% CI 1.12-1.44) were more likely to report stillbirth in later adult life. Such an association appeared stronger in women living in rural regions. CONCLUSIONS Early life exposure of famine was associated with an increased risk of stillbirth but not spontaneous abortion in adulthood. The strength of such an association appeared stronger in rural areas. Given the high potential for unmeasured confounding, these associations must be interpreted with caution. Regarding the potential implication that undernutrition in the fetal period is related to reproductive outcome in adulthood, fetal nutritional supply may play an important role in human reproduction. TWEETABLE ABSTRACT Exposure to famine in early life was associated with increased pregnancy loss in adulthood.
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Affiliation(s)
- H Zhang
- School of Public Health, Peking University Health Science Center, Beijing, China.,Department of Population, Family and Reproductive Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - X Qu
- School of Public Health, Peking University Health Science Center, Beijing, China.,Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - H Wang
- Institute for Medical Humanities, Peking University Health Science Centre, Beijing, China
| | - K Tang
- Research Centre for Public Health, Tsinghua University, Beijing, China
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Perrin A, Gondran C, Coquet-Morel C, Oger E, zhao R, Qu X, Cucumel K. 615 Evaluation of a combination of botanical extracts designed to protect hair and scalp from air pollutants: in vitro and clinical studies. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.07.619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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28
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Perrin A, Cucumel K, Zhao R, Qu X, Gondran C. 877 Focusing on the effects of airborne pollution on hair and scalp skin. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.03.953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Oberto G, Coquet-Morel C, Oger E, Qu X, Zhao R, Cucumel K. 301 In vivo evaluation of sustainably sourced of camu camu extract on skin fatigue. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.03.377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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CHe X, Zhang Y, Qu X, Guo T, Ma Y, Li C, Fan Y, Hou K, Cai Y, Yu R, Zhou H, He X, Wu H, Liu Y, Xu L. The E3 ubiquitin ligase Cbl-b inhibits tumor growth in multidrug-resistant gastric and breast cancer cells. Neoplasma 2019; 64:887-892. [PMID: 28895413 DOI: 10.4149/neo_2017_610] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Most receptor tyrosine kinases (RTKs) contribute to tumor growth, and their ubiquitination and degradation is related to the inhibition of tumor growth. Our previous study showed that the ubiquitin ligase Cbl-b was expressed at low levels in multidrug-resistant (MDR) gastric cancer cells compared with their parental cells. However, whether enhancement of Cbl-b expression in MDR cancer cells could prevent tumor proliferation via ubiquitination and degradation of RTK remains unclear. In the present study, Cbl-b overexpression reduced cell proliferation in MDR gastric and breast cancer cells, and effectively inhibited tumor growth in vivo. Additionally, Cbl-b overexpression reduced the total protein level of insulin-like growth factor 1 (IGF-1R), an important member of the RTK family. Moreover, Cbl-b overexpression promoted interaction of Cbl-b with IGF-1R, and induced ubiquitination and degradation of IGF-1R and inactivation of the IGF-1R pathway. These results suggest that the ubiquitin ligase Cbl-b inhibited tumor growth via ubiquitination and degradation of IGF-1R in MDR gastric and breast cancer cells.
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Ge ZC, Qu X, Yu HF, Wang ZH, Zhang HM, Gao YG, Zhang ZT. [Effect of death decoy receptor 3 on prognosis of breast cancer and function of breast cancer cells in vitro]. Zhonghua Yi Xue Za Zhi 2019; 99:1081-1085. [PMID: 30982256 DOI: 10.3760/cma.j.issn.0376-2491.2019.14.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To study the effect of death decoy receptor 3 on the prognosis of breast cancer and the invasive function of breast cancer cells in vitro. Methods: Expression of DcR3 were assessed qualitatively by Q-PCR to analyze the correlation in 115 mammary tissue samples with a 10-year median follow-up. The expression of DcR3 was examined in MCF7 and MDA-MB-231 cell lines using immunocytochemical staining and RT-PCR. DcR3 knock-down cell sub-lines were constructed. The effects of reduced DcR3 expression were observed by establishing invasion and migration models. Results: Patients were divided into the good prognosis group (n=81) and the poor prognosis group (n=26). The expression of DcR3 in the poor prognosis group (133 350+49 646 copies/50 ng RNA)was significantly higher than that in the good prognosis group (5 393+1 428 copies/50 ng RNA, P=0.020). DcR3 transcripts were found to be increased significantly in grade 2 cancers compared to well differentiated grade 1(82 844±34 068 copies/50 ng RNA, n=39,) vs (5 371±3 500 copies/50 ng RNA, n=20, P=0.029).The DcR3 gene of MCF7 cell line and MDA-MB-231 cell line were successfully knocked out and verified that DcR3 knockout. And the invasion and migration of MCF7 cells were inhibited (P=0.009, P=0.001). However, no significant difference was found in these two aspects of the MDA-MB-231 cell line (P=0.475, P=0.102). Conclusion: DcR3 promotes the capacity of invasion of breast cancer cells and plays an important role in the metastasis of breast cancer. DcR3 detection is helpful to the judgment about prognosis of breast cancer.
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Affiliation(s)
- Z C Ge
- Department of General Surgery, Beijing Friendship Hospital, Capital University of Medical Science, Beijing 100050, China
| | - X Qu
- Department of General Surgery, Beijing Friendship Hospital, Capital University of Medical Science, Beijing 100050, China
| | - H F Yu
- Cancer Institute of Capital Medical University; Beijing Key Laboratory for Cancer Invasion and Metastasis Research, Beijing 100069, China
| | - Z H Wang
- Department of General Surgery, Beijing Friendship Hospital, Capital University of Medical Science, Beijing 100050, China
| | - H M Zhang
- Department of General Surgery, Beijing Friendship Hospital, Capital University of Medical Science, Beijing 100050, China
| | - Y G Gao
- Department of General Surgery, Beijing Friendship Hospital, Capital University of Medical Science, Beijing 100050, China
| | - Z T Zhang
- Department of General Surgery, Beijing Friendship Hospital, Capital University of Medical Science, Beijing 100050, China
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Shi Y, Bo Z, Pang G, Qu X, Bao W, Yang L, Ma Y. MiR-99a-5p regulates proliferation, migration and invasion abilities of human oral carcinoma cells by targeting NOX4. Neoplasma 2019; 64:666-673. [PMID: 28592118 DOI: 10.4149/neo_2017_503] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Previous research has showed that miR-99a-5p was a tumor suppressor. The aim of our study was to explore the effect of miR-99a-5p on the vitality and proliferation, migration together with the invasion of oral tumor cells via inhibiting the expression of NOX4. QRT-PCR and Western blot were applied to examine the expression level of miR-99a-5p and NOX4 in human oral tumorous and adjacent tissues. Dual luciferase reporter gene assay was applied to confirm that miR-99a-5p negatively regulated directly on NOX4 in TSCC1 cells. Cell transfection and lentiviral vectors were used to up-regulate expression of miR-99a-5p and NOX4, respectively. Cell proliferation, cell cycle, apoptosis and invasion along with the migration in different groups were assessed using MTT assay, colony formation assay, the flow cytometry, transwell assay and the wound healing assay, respectively. MiR-99a-5p was under-expressed in human oral tumor, while NOX4 was over-expressed. There was a negative relationship between miR-99a-5p and NOX4. Up-regulating miR-99a-5p or down-regulating NOX4 suppressed the vitality, proliferation, migration together with invasion of TSCC1 cells. MiR-99a-5p affected the vitality and proliferation, migration together with the invasion of oral tumor cells through targeting NOX4.
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Wang Y, Sun J, Zheng R, Shao Q, Gao W, Song B, Chen X, Qu X. Regulatory T cells are an important prognostic factor in breast cancer: a systematic review and meta-analysis. Neoplasma 2019; 63:789-98. [PMID: 27468884 DOI: 10.4149/neo_2016_517] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The clinical relevance of regulatory T cell (Treg) infiltration in breast cancer (BC) remains controversial, and no recent meta-analysis has been published on this subject. Our aim was to identify the precise relationship between Tregs and the prognosis and clinic-pathological features of BC. Eligible articles were identified with a MEDLINE database search over a period up to March 2015. Our meta-analysis was performed using STATA software 11.0 and Review Manager 5.3. The correlations between Treg infiltration and clinico-pathological features and BC prognosis were analyzed. Subgroup and sensitivity analyses, as well as meta-regression, were conducted. Eighteen published studies (including 8,562 patients) were eligible. Overall survival (OS) and disease-, recurrence-, and progression-free survival (DFS/RFS/PFS) were correlated with Treg infiltration (OR=2.03 (95% CI, 1.40-2.95; P=0.000) and 1.48 (95% CI, 1.00-2.19; P=0.050), respectively), including 3-, 5-, and 10-year mortality rates. In addition, low Treg infiltration was present in estrogen receptor (ER)-positive tumors (P=0.000), progesterone receptor (PR)-positive tumors (P=0.003), Her2-negative tumors (P=0.000) and histological grade I/II tumors (P=0.001). No publication bias was observed with the exception of OS. Subgroup analysis suggested that the mortality rate of the high Treg infiltration subgroup was increased compared with the low Treg infiltration subgroup among ER-positive patients. Treg infiltration indicated a poorer prognosis for BC and is related to ER, PR, and Her2 status and histological grade. Thus, Treg infiltration could help predict outcomes and guide clinical therapy.
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Liu M, Liu X, Wang L, Wang Y, Dong F, Wu J, Qu X, Liu Y, Liu Z, Fan H, Yao R. TRPV4 Inhibition Improved Myelination and Reduced Glia Reactivity and Inflammation in a Cuprizone-Induced Mouse Model of Demyelination. Front Cell Neurosci 2018; 12:392. [PMID: 30455633 PMCID: PMC6230558 DOI: 10.3389/fncel.2018.00392] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [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: 08/21/2018] [Accepted: 10/12/2018] [Indexed: 11/25/2022] Open
Abstract
The inhibition of demyelination and the promotion of remyelination are both considerable challenges in the therapeutic process for many central nervous system (CNS) diseases. Increasing evidence has demonstrated that neuroglial activation and neuroinflammation are responsible for myelin sheath damage during demyelinating disorders. It has been revealed that the nonselective cation channel transient receptor potential vanilloid 4 (TRPV4) profoundly affects a variety of physiological processes, including inflammation. However, its roles and mechanisms in demyelination have remained unclear. Here, for the first time, we found that there was a significant increase in TRPV4 in the corpus callosum in a demyelinated mouse model induced by cuprizone (CPZ). RN-1734, a TRPV4-antagonist, clearly alleviated demyelination and inhibited glial activation and the production of tumor necrosis factor α (TNF-α) and interleukin 1β (IL-1β) without altering the number of olig2-positive cells. In vitro, RN-1734 treatment clearly inhibited the influx of calcium and decreased the levels of IL-1β and TNF-α in lipopolysaccharide (LPS)-activated microglial cells by suppressing NF-κB P65 phosphorylation. Apoptosis of oligodendrocyte induced by LPS-activated microglia was also alleviated by RN-1734. The results suggest that activation of TRPV4 in microglia is involved in oligodendrocyte apoptosis through the activation of the NF-κB signaling pathway, thus revealing a new mechanism of CNS demyelination.
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Affiliation(s)
- Meiying Liu
- Department of Cell Biology and Neurobiology, Xuzhou Key Laboratory of Neurobiology, Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China.,Department of Human Anatomy, Xuzhou Medical University, Xuzhou, China
| | - Xuan Liu
- Department of Rheumatology, Affiliated Hospital of Inner Mongolia Medical University, Hohhot, China
| | - Lei Wang
- Department of Cell Biology and Neurobiology, Xuzhou Key Laboratory of Neurobiology, Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China
| | - Yu Wang
- Department of Cell Biology and Neurobiology, Xuzhou Key Laboratory of Neurobiology, Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China
| | - Fuxing Dong
- Department of Cell Biology and Neurobiology, Xuzhou Key Laboratory of Neurobiology, Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China
| | - Jian Wu
- Department of Cell Biology and Neurobiology, Xuzhou Key Laboratory of Neurobiology, Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China
| | - Xuebin Qu
- Department of Cell Biology and Neurobiology, Xuzhou Key Laboratory of Neurobiology, Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China
| | - Yanan Liu
- Department of Human Anatomy, Xuzhou Medical University, Xuzhou, China
| | - Zhian Liu
- Department of Human Anatomy, Xuzhou Medical University, Xuzhou, China
| | - Hongbin Fan
- Department of Cell Biology and Neurobiology, Xuzhou Key Laboratory of Neurobiology, Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China.,Department of Neurology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Ruiqin Yao
- Department of Cell Biology and Neurobiology, Xuzhou Key Laboratory of Neurobiology, Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China
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Wang X, Che X, Fan Y, Bai M, Qu X. Cancer-associated fibroblasts-derived VEGFA mediates the migration of gastric cancer cells through VEGFR1. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy268.038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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36
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Xu L, Qu X, He X, Zhou H, Liu Y. P3.01-84 The Association of CDKN2A Gene Mutation with Clinicopathological Features and Prognosis in Advanced Lung Cancer Patients. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.1644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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37
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Wu M, Xu L, Wang Y, Zhou N, Zhen F, Zhang Y, Qu X, Fan H, Liu S, Chen Y, Yao R. S100A8/A9 induces microglia activation and promotes the apoptosis of oligodendrocyte precursor cells by activating the NF-κB signaling pathway. Brain Res Bull 2018; 143:234-245. [PMID: 30266587 DOI: 10.1016/j.brainresbull.2018.09.014] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2018] [Revised: 08/23/2018] [Accepted: 09/24/2018] [Indexed: 12/31/2022]
Abstract
S100A8/A9, a heterodimer complex composed of calcium-binding proteins S100A8 and S100A9, is significantly increased in the serum of multiple sclerosis (MS) patients. Relevant reports have revealed that MS pathology is commonly associated with the activation of microglial cells and the damage of oligodendrocyte precursor cells (OPCs). Moreover, microglia activation following stimulation increases the expression of pro-inflammatory cytokines, such as interleukin-1β (IL-1β) and tumor necrosis factor-α (TNF-α), which further exacerbate the damage to OPCs. In this study, we were the first to confirm that S100A8/A9 treatment induced the activation, proliferation and migration of the murine microglia cell line BV-2; moreover, this treatment caused the cells to switch from an anti-inflammatory activated (M2) phenotype to a pro-inflammatory activated (M1) phenotype. Meanwhile, the level of the phosphorylated nuclear factor-κB (p-NF-κB) P65 protein was remarkably elevated, and the production of pro-inflammatory factors (IL-1β, TNF-α, MMP-9) and chemokines (CCL2, CCL3, CXCL10) was also increased in the S100A8/A9-treated BV-2 microglial cells. Inhibition of NF-κB P65 phosphorylation reversed the effects of S100A8/A9 on the production of pro-inflammatory factors and chemokines. We also explored the effects of S100A8/A9 and S100A8/A9-activated BV-2 microglial cells on the viability of OPCs. The results showed that both the S100A8/A9 complex and the conditioned medium (CM) of the S100A8/A9-activated BV-2 microglial cells resulted in OPC apoptosis, which was more pronounced in the case of the CM treatment. However, OPC apoptosis in the CM group was obviously decreased through the inhibition of NF-κB p65 phosphorylation. This study indicates that S100A8/A9 induces the activation of BV-2 microglial cells and promotes the production of pro-inflammatory factors by activating the NF-κB signaling pathway, which further exacerbates OPC damage.
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Affiliation(s)
- Meili Wu
- Department of Cell Biology and Neurobiology, Xuzhou Key Laboratory of Neurobiology, Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, 221009, PR China
| | - Lu Xu
- Department of Cell Biology and Neurobiology, Xuzhou Key Laboratory of Neurobiology, Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, 221009, PR China
| | - Yu Wang
- Department of Cell Biology and Neurobiology, Xuzhou Key Laboratory of Neurobiology, Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, 221009, PR China
| | - Ning Zhou
- Department of Cell Biology and Neurobiology, Xuzhou Key Laboratory of Neurobiology, Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, 221009, PR China
| | - Fei Zhen
- Department of Cell Biology and Neurobiology, Xuzhou Key Laboratory of Neurobiology, Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, 221009, PR China
| | - Ying Zhang
- Department of Cell Biology and Neurobiology, Xuzhou Key Laboratory of Neurobiology, Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, 221009, PR China
| | - Xuebin Qu
- Department of Cell Biology and Neurobiology, Xuzhou Key Laboratory of Neurobiology, Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, 221009, PR China
| | - Hongbin Fan
- Department of Cell Biology and Neurobiology, Xuzhou Key Laboratory of Neurobiology, Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, 221009, PR China; Department of Neurology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221002, PR China
| | - Sihan Liu
- Department of Rehabilitation, The First People's Hospital of Changzhou, Jiangsu, 213000, PR China
| | - Yan Chen
- Department of Cell Biology and Neurobiology, Xuzhou Key Laboratory of Neurobiology, Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, 221009, PR China.
| | - Ruiqin Yao
- Department of Cell Biology and Neurobiology, Xuzhou Key Laboratory of Neurobiology, Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, 221009, PR China.
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Wang X, Sun X, Qu X, Li C, Yang P, Jia J, Liu J, Zheng Y. Overexpressed fibulin‐3 contributes to the pathogenesis of psoriasis by promoting angiogenesis. Clin Exp Dermatol 2018; 44:e64-e72. [PMID: 30146751 DOI: 10.1111/ced.13720] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/21/2018] [Indexed: 01/21/2023]
Affiliation(s)
- X. Wang
- Department of Dermatology Second Affiliated Hospital of Xi'an Jiaotong University Xi'an China
| | - X. Sun
- Department of Dermatology Shaanxi Provincial People's Hospital Xi'an China
| | - X. Qu
- Department of Dermatology Second Affiliated Hospital of Xi'an Jiaotong University Xi'an China
| | - C. Li
- Department of Dermatology Second Affiliated Hospital of Xi'an Jiaotong University Xi'an China
| | - P. Yang
- Department of Dermatology Second Affiliated Hospital of Xi'an Jiaotong University Xi'an China
| | - J. Jia
- Department of Dermatology Second Affiliated Hospital of Xi'an Jiaotong University Xi'an China
| | - J. Liu
- Center for Mitochondrial Biology and Medicine Key Laboratory of Biomedical Information Engineering of Ministry of Education Xi'an Jiaotong University Xi'an China
- School of Life Science and Technology Frontier Institute of Science and Technology Xi'an Jiaotong University Xi'an China
| | - Y. Zheng
- Department of Dermatology Second Affiliated Hospital of Xi'an Jiaotong University Xi'an China
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Luan YJ, Xu Y, Cai J, Dou Y, Yu WJ, Wang KT, Liu SH, Yang PS, Qu X, Wei FC. Expression of Kif5b protein is significantly associated with the progression, recurrence and prognosis of oral squamous cell carcinoma. Eur Rev Med Pharmacol Sci 2018; 22:4542-4550. [PMID: 30058692 DOI: 10.26355/eurrev_201807_15509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Kinesin family member 5b (Kif5b), a conventional kinesin, mainly participates in lysosome and mitochondria transportation. Some studies have indicated that Kif5b may be associated with the development of a variety of tumors. However, the role Kif5b plays in oral squamous cell carcinoma (OSCC) has yet to be determined. Our study aimed at investigating the expression level of Kif5b in primary OSCC and discussing its clinical significance in patients' outcomes. PATIENTS AND METHODS We measured Kif5b expression in 82 OSCC tissue samples with immunohistochemistry. The associations between the expression level of Kif5b and clinicopathological characteristics as well as patients' survival were statistically assessed. RESULTS Kif5b level was significantly associated with tumor size (p=0.034), histological differentiation (p=0.028), disease recurrence (p=0.018), surrounding tissue invasion (p=0.045), recurrence time (p=0.036) and survival status (p=0.030). Kaplan-Meier cumulative survival analyses indicated that high expression of Kif5b was linked to worse overall survival (p=0.0112) and disease-free survival (p=0.0085). The univariate and multivariate Cox proportional hazard analysis further identified the expression status of Kif5b as an independent variable that correlated with patients' survival and recurrence. Furthermore, in 54 early-stage, clinically node negative OSCC patients, Kif5b expression were correlated with histological differentiation (p=0.034), disease recurrence (p=0.038) and surrounding tissue invasion (p=0.029). Univariate and multivariable logistic regression results showed that only Kif5b expression level could influence the probability of recurrence. CONCLUSIONS Our results reveal that Kif5b expression is associated with poor clinical outcome in OSCC and even in early-stage, clinically node negative OSCC and may be a potential target for OSCC treatment.
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Affiliation(s)
- Y-J Luan
- Department of Stomatology, Qilu Hospital and Institute of Stomatology, Shandong University, Jinan, China.
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Wang L, Li Z, Qu X, Peng WM, Hu SQ, Wang F. Highly Efficiently Synthesis of Disubstituted Pyrrole Derivatives via Rh(III)-Catalyzed Direct C–H Alkylation Under Mild Conditions. RUSS J GEN CHEM+ 2018. [DOI: 10.1134/s1070363218040217] [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: 11/23/2022]
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41
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Perrin A, Gondran C, Zhao R, Qu X, Cucumel K. 1307 Evaluating the effect of a combined biofunctional on a 3D-model of dermal papilla cells and its relevance to hair density. J Invest Dermatol 2018. [DOI: 10.1016/j.jid.2018.03.1324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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42
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Liu S, Ren C, Qu X, Wu X, Dong F, Chand YK, Fan H, Yao R, Geng D. miR-219 attenuates demyelination in cuprizone-induced demyelinated mice by regulating monocarboxylate transporter 1. Eur J Neurosci 2018; 45:249-259. [PMID: 27873367 DOI: 10.1111/ejn.13485] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2016] [Revised: 11/17/2016] [Accepted: 11/18/2016] [Indexed: 12/14/2022]
Abstract
Remyelination is limited in patients with multiple sclerosis (MS) due to the difficulties in recruiting proliferating oligodendrocyte precursors (OPCs), the inhibition of OPC differentiation and/or maturation, and/or failure in the generation of the myelin sheath. In vitro studies have revealed that miR-219 is necessary for OPC differentiation and monocarboxylate transporter 1 (MCT1) plays a vital role in oligodendrocyte maturation and myelin synthesis. Herein, we hypothesized that miR-219 might promote oligodendrocyte differentiation and attenuate demyelination in a cuprizone (CPZ)-induced demyelinated model by regulating the expression of MCT1. We found that CPZ-treated mice exhibited significantly increased anxiety in the open field test. However, miR-219 reduced anxiety as shown by an increase in the total distance, the central distance and the mean amount of time spent in the central area. miR-219 decreased the quantity of OPCs and increased the number of oligodendrocytes and the level of myelin basic protein (MBP) and cyclic nucleotide 3' phosphodiesterase (CNP) protein. Ultrastructural studies further confirmed that the extent of demyelination was attenuated by miR-219 overexpression. Meanwhile, miR-219 also greatly enhanced MCT1 expression via suppression of oligodendrocyte differentiation inhibitors, Sox6 and Hes5, treatment with the MCT1 inhibitor α-cyano-4-hydroxycinnamate (4-CIN) reduced the number of oligodendrocytes and the protein levels of MBP and CNP. Taken together, these results suggest a novel mode of action of miR-219 via MCT1 in vivo and may provide a new potential remyelination therapeutic target.
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Affiliation(s)
- Sihan Liu
- Research Center for Neurobiology, Jiangsu Province Key Laboratory of Anesthesiology, Xuzhou Medical University, 209 Tongshan Road, Xuzhou, 221000, China.,Department of Neurology, Affiliated Hospital of Xuzhou Medical University, 99 Huaihai Road, Xuzhou, 221009, China
| | - Chuanlu Ren
- Department of Laboratory, No. 100 Hospital of CPLA, Suzhou, China
| | - Xuebin Qu
- Research Center for Neurobiology, Jiangsu Province Key Laboratory of Anesthesiology, Xuzhou Medical University, 209 Tongshan Road, Xuzhou, 221000, China
| | - Xiuxiang Wu
- Research Center for Neurobiology, Jiangsu Province Key Laboratory of Anesthesiology, Xuzhou Medical University, 209 Tongshan Road, Xuzhou, 221000, China
| | - Fuxing Dong
- Research Center for Neurobiology, Jiangsu Province Key Laboratory of Anesthesiology, Xuzhou Medical University, 209 Tongshan Road, Xuzhou, 221000, China
| | - Yadav Kaushal Chand
- Research Center for Neurobiology, Jiangsu Province Key Laboratory of Anesthesiology, Xuzhou Medical University, 209 Tongshan Road, Xuzhou, 221000, China
| | - Hongbin Fan
- Department of Neurology, Affiliated Hospital of Xuzhou Medical University, 99 Huaihai Road, Xuzhou, 221009, China
| | - Ruiqin Yao
- Research Center for Neurobiology, Jiangsu Province Key Laboratory of Anesthesiology, Xuzhou Medical University, 209 Tongshan Road, Xuzhou, 221000, China
| | - Deqin Geng
- Department of Neurology, Affiliated Hospital of Xuzhou Medical University, 99 Huaihai Road, Xuzhou, 221009, China
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Zhang X, Song Y, Song N, Zhang L, Wang Y, Li D, Wang Z, Qu X, Liu Y. Rankl expression predicts poor prognosis in gastric cancer patients: results from a retrospective and single-center analysis. ACTA ACUST UNITED AC 2018; 51:e6265. [PMID: 29340518 PMCID: PMC5769752 DOI: 10.1590/1414-431x20176265] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Accepted: 10/25/2017] [Indexed: 12/27/2022]
Abstract
The receptor activator of nuclear factor κB ligand (RANKL)/RANK pathway plays an important role in the prognosis of several solid tumor types, but its role in gastric cancer prognosis has been poorly characterized. A total of 116 gastric cancer patients who underwent surgical resection were enrolled in this study. Expressions of RANKL and RANK in gastric cancer tissues were detected using immunohistochemical staining. Thirty-eight patients (33%) showed a high level of RANKL expression and 61 patients (53%) showed a high level of RANK expression. There was a positive correlation between expressions of RANKL and RANK (P=0.014, r=0.221). A high level of RANKL expression indicated shorter overall survival (OS) (P=0.008), and was associated with a higher pathological tumor/lymph node/metastasis (pTNM) stage (P=0.035), while no significant correlation was detected between RANK expression and clinicopathological parameters. RANKL also predicted poor prognosis in patients with high RANK expression (P=0.008) and Bormann's type III/IV (P=0.002). Furthermore, RANKL expression correlated with pTNM stage according to high RANK expression (P=0.009), while no significance was found in patients with low RANK expression (P=1.000). Together, our results revealed that high expression of RANKL could predict worse outcomes in gastric cancer especially combined with RANK detection, and thereby this pathway could be a useful prognostic indicator of gastric cancer.
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Affiliation(s)
- X Zhang
- Department of Medical Oncology, The First Hospital of China Medical University, Shenyang, China.,Key Laboratory of Anticancer Drugs and Biotherapy of Liaoning Province, The First Hospital of China Medical University, Shenyang, China
| | - Y Song
- Department of Surgical Oncology, The First Hospital of China Medical University, Shenyang, China
| | - N Song
- Department of Medical Oncology, The First Hospital of China Medical University, Shenyang, China.,Key Laboratory of Anticancer Drugs and Biotherapy of Liaoning Province, The First Hospital of China Medical University, Shenyang, China
| | - L Zhang
- Department of Medical Oncology, The First Hospital of China Medical University, Shenyang, China.,Key Laboratory of Anticancer Drugs and Biotherapy of Liaoning Province, The First Hospital of China Medical University, Shenyang, China
| | - Y Wang
- Department of Medical Oncology, The First Hospital of China Medical University, Shenyang, China.,Key Laboratory of Anticancer Drugs and Biotherapy of Liaoning Province, The First Hospital of China Medical University, Shenyang, China
| | - D Li
- Department of Medical Oncology, The First Hospital of China Medical University, Shenyang, China.,Key Laboratory of Anticancer Drugs and Biotherapy of Liaoning Province, The First Hospital of China Medical University, Shenyang, China
| | - Z Wang
- Department of Surgical Oncology, The First Hospital of China Medical University, Shenyang, China
| | - X Qu
- Department of Medical Oncology, The First Hospital of China Medical University, Shenyang, China.,Key Laboratory of Anticancer Drugs and Biotherapy of Liaoning Province, The First Hospital of China Medical University, Shenyang, China
| | - Y Liu
- Department of Medical Oncology, The First Hospital of China Medical University, Shenyang, China
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Fokoue HH, Marques JV, Correia MV, Yamaguchi LF, Qu X, Aires-de-Sousa J, Scotti MT, Lopes NP, Kato MJ. Fragmentation pattern of amides by EI and HRESI: study of protonation sites using DFT-3LYP data. RSC Adv 2018; 8:21407-21413. [PMID: 35539943 PMCID: PMC9080946 DOI: 10.1039/c7ra00408g] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Accepted: 06/04/2018] [Indexed: 12/19/2022] Open
Abstract
Amides are important natural products which occur in a few plant families. Piplartine and piperine, major amides in Piper tuberculatum and P. nigrum, respectively, have shown a typical N–CO cleavage when analyzed by EI-MS or HRESI-MS. In this study several synthetic analogs of piplartine and piperine were subjected to both types of mass spectrometric analysis in order to identify structural features influencing fragmentation. Most of the amides showed an intense signal of the protonated molecule [M + H]+ when subjected to both HRESI-MS and EI-MS conditions, with a common outcome being the cleavage of the amide bond (N–CO). This results in the loss of the neutral amine or lactam and the formation of aryl acylium cations. The mechanism of N–CO bond cleavage persists in α,β-unsaturated amides because of the stability caused by extended conjugation. Computational methods determined that the protonation of the piperamides and their derivatives takes place preferentially at the amide nitrogen supporting the dominant the N–CO bond cleavage. The N–CO cleavage of α,β-unsaturated piperamides under EI and ESI is supported by computational studies.![]()
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Affiliation(s)
- H. H. Fokoue
- Laboratório de Avaliação e Síntese de Substâncias Bioativas (LASSBio®)
- Instituto de Ciências Biomédicas
- Centro das Ciências da Saúde
- Universidade Federal do Rio de Janeiro
- Rio de Janeiro
| | | | - M. V. Correia
- Instituto de Química
- Universidade de Brasília
- Brasilia-DF
- Brazil
| | | | - X. Qu
- LAQV and REQUIMTE
- Departamento de Química
- Faculdade de Ciências e Tecnologia
- Universidade Nova de Lisboa
- Caparica 2829-516
| | - J. Aires-de-Sousa
- LAQV and REQUIMTE
- Departamento de Química
- Faculdade de Ciências e Tecnologia
- Universidade Nova de Lisboa
- Caparica 2829-516
| | - M. T. Scotti
- Pós-Graduação em Produtos Naturais e Sintéticos Bioativos
- Universidade Federal da Paraíba
- Brazil
| | - N. P. Lopes
- Departamento de Física e Química
- Faculdade de Ciências Farmacêuticas de Ribeirão Preto
- Universidade de São Paulo
- Ribeirão Preto
- Brazil
| | - M. J. Kato
- Instituto de Química
- Universidade de São Paulo
- Brazil
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Young WB, Qu X, Wu G. Visualization and quantification of HIV dissemination and reservoirs using in vivo imaging. J Virus Erad 2017. [DOI: 10.1016/s2055-6640(20)30533-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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46
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Lai Q, Du W, Wu J, Wang X, Li X, Qu X, Wu X, Dong F, Yao R, Fan H. H3K9ac and HDAC2 Activity Are Involved in the Expression of Monocarboxylate Transporter 1 in Oligodendrocyte. Front Mol Neurosci 2017; 10:376. [PMID: 29184483 PMCID: PMC5694447 DOI: 10.3389/fnmol.2017.00376] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2017] [Accepted: 10/27/2017] [Indexed: 01/09/2023] Open
Abstract
Recently, it is reported that monocarboxylate transporter 1 (MCT1) plays crucial role in oligodendrocyte differentiation and myelination. We found that MCT1 is strongly expressed in oligodendrocyte but weakly expressed in oligodendrocyte precursors (OPCs), and the underlying mechanisms remain elusive. Histone deacetylases (HDACs) activity is required for induction of oligodendrocyte differentiation and maturation. We asked whether HDACs are involved in the regulation of MCT1 expression. This work revealed that the acetylation level of histone H3K9 (H3K9ac) was much higher in mct1 gene (Slc16a1) promoter in OPCs than that in oligodendrocyte. H3K9ac regulates MCT1 expression was confirmed by HDAC acetyltransferase inhibitors trichostatin A and curcumin. Of note, there was a negative correlation between H3K9ac and MCT1 expression in oligodendrocyte. Further, we found that the levels of HDAC1, 2, and 3 protein in oligodendrocyte were obviously higher than those in OPCs. However, specific knockdown of HDAC2 but not HDAC1 and HDAC3 significantly decreased the expression of MCT1 in oligodendrocyte. Conversely, overexpression of HDAC2 remarkably enhanced the expression of MCT1. The results imply that HDAC2 is involved in H3K9ac modification which regulates the expression of MCT1 during the development of oligodendrocyte.
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Affiliation(s)
- Qingwei Lai
- Xuzhou Key Laboratory of Neurobiology, Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China.,Department of Neurology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Wantong Du
- Xuzhou Key Laboratory of Neurobiology, Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China
| | - Jian Wu
- Xuzhou Key Laboratory of Neurobiology, Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China
| | - Xiao Wang
- Xuzhou Key Laboratory of Neurobiology, Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China.,Department of Neurology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Xinyu Li
- Xuzhou Key Laboratory of Neurobiology, Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China
| | - Xuebin Qu
- Xuzhou Key Laboratory of Neurobiology, Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China
| | - Xiuxiang Wu
- Xuzhou Key Laboratory of Neurobiology, Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China
| | - Fuxing Dong
- Xuzhou Key Laboratory of Neurobiology, Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China
| | - Ruiqin Yao
- Xuzhou Key Laboratory of Neurobiology, Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China
| | - Hongbin Fan
- Xuzhou Key Laboratory of Neurobiology, Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China.,Department of Neurology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
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Zhang S, Zhang Y, Qu J, Che X, Fan Y, Hou K, Guo T, Deng G, Song N, Li C, Wan X, Qu X, Liu Y. Exosomes promote cetuximab resistance via the PTEN/Akt pathway in colon cancer cells. ACTA ACUST UNITED AC 2017; 51:e6472. [PMID: 29160412 PMCID: PMC5685060 DOI: 10.1590/1414-431x20176472] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2017] [Accepted: 09/05/2017] [Indexed: 12/11/2022]
Abstract
Cetuximab is widely used in patients with metastatic colon cancer expressing wildtype KRAS. However, acquired drug resistance limits its clinical efficacy. Exosomes are nanosized vesicles secreted by various cell types. Tumor cell-derived exosomes participate in many biological processes, including tumor invasion, metastasis, and drug resistance. In this study, exosomes derived from cetuximab-resistant RKO colon cancer cells induced cetuximab resistance in cetuximab-sensitive Caco-2 cells. Meanwhile, exosomes from RKO and Caco-2 cells showed different levels of phosphatase and tensin homolog (PTEN) and phosphor-Akt. Furthermore, reduced PTEN and increased phosphorylated Akt levels were found in Caco-2 cells after exposure to RKO cell-derived exosomes. Moreover, an Akt inhibitor prevented RKO cell-derived exosome-induced drug resistance in Caco-2 cells. These findings provide novel evidence that exosomes derived from cetuximab-resistant cells could induce cetuximab resistance in cetuximab-sensitive cells, by downregulating PTEN and increasing phosphorylated Akt levels.
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Affiliation(s)
- S Zhang
- Department of Medical Oncology, the First Hospital of China Medical University, Shenyang, China.,Key Laboratory of Anticancer Drugs and Biotherapy of Liaoning Province, the First Hospital of China Medical University, Shenyang, China
| | - Y Zhang
- Department of Medical Oncology, the First Hospital of China Medical University, Shenyang, China.,Key Laboratory of Anticancer Drugs and Biotherapy of Liaoning Province, the First Hospital of China Medical University, Shenyang, China
| | - J Qu
- Department of Medical Oncology, the First Hospital of China Medical University, Shenyang, China.,Key Laboratory of Anticancer Drugs and Biotherapy of Liaoning Province, the First Hospital of China Medical University, Shenyang, China
| | - X Che
- Department of Medical Oncology, the First Hospital of China Medical University, Shenyang, China.,Key Laboratory of Anticancer Drugs and Biotherapy of Liaoning Province, the First Hospital of China Medical University, Shenyang, China
| | - Y Fan
- Department of Medical Oncology, the First Hospital of China Medical University, Shenyang, China.,Key Laboratory of Anticancer Drugs and Biotherapy of Liaoning Province, the First Hospital of China Medical University, Shenyang, China
| | - K Hou
- Department of Medical Oncology, the First Hospital of China Medical University, Shenyang, China.,Key Laboratory of Anticancer Drugs and Biotherapy of Liaoning Province, the First Hospital of China Medical University, Shenyang, China
| | - T Guo
- Department of Medical Oncology, the First Hospital of China Medical University, Shenyang, China.,Key Laboratory of Anticancer Drugs and Biotherapy of Liaoning Province, the First Hospital of China Medical University, Shenyang, China
| | - G Deng
- Department of Medical Oncology, the First Hospital of China Medical University, Shenyang, China.,Key Laboratory of Anticancer Drugs and Biotherapy of Liaoning Province, the First Hospital of China Medical University, Shenyang, China
| | - N Song
- Department of Medical Oncology, the First Hospital of China Medical University, Shenyang, China.,Key Laboratory of Anticancer Drugs and Biotherapy of Liaoning Province, the First Hospital of China Medical University, Shenyang, China
| | - C Li
- Department of Medical Oncology, the First Hospital of China Medical University, Shenyang, China.,Key Laboratory of Anticancer Drugs and Biotherapy of Liaoning Province, the First Hospital of China Medical University, Shenyang, China
| | - X Wan
- Department of Medical Oncology, the First Hospital of China Medical University, Shenyang, China.,Key Laboratory of Anticancer Drugs and Biotherapy of Liaoning Province, the First Hospital of China Medical University, Shenyang, China
| | - X Qu
- Department of Medical Oncology, the First Hospital of China Medical University, Shenyang, China.,Key Laboratory of Anticancer Drugs and Biotherapy of Liaoning Province, the First Hospital of China Medical University, Shenyang, China
| | - Y Liu
- Department of Medical Oncology, the First Hospital of China Medical University, Shenyang, China.,Key Laboratory of Anticancer Drugs and Biotherapy of Liaoning Province, the First Hospital of China Medical University, Shenyang, China
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Dong F, Wang S, Wang Y, Yang X, Jiang J, Wu D, Qu X, Fan H, Yao R. Quercetin ameliorates learning and memory via the Nrf2-ARE signaling pathway in d-galactose-induced neurotoxicity in mice. Biochem Biophys Res Commun 2017; 491:636-641. [DOI: 10.1016/j.bbrc.2017.07.151] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Accepted: 07/27/2017] [Indexed: 12/28/2022]
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Vaes N, Lentjes MHFM, Gijbels MJ, Rademakers G, Daenen KL, Boesmans W, Wouters KAD, Geuzens A, Qu X, Steinbusch HPJ, Rutten BPF, Baldwin SH, Sharkey KA, Hofstra RMW, van Engeland M, Vanden Berghe P, Melotte V. NDRG4, an early detection marker for colorectal cancer, is specifically expressed in enteric neurons. Neurogastroenterol Motil 2017; 29. [PMID: 28524415 DOI: 10.1111/nmo.13095] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Accepted: 03/30/2017] [Indexed: 02/08/2023]
Abstract
BACKGROUND Promoter methylation of N-myc Downstream-Regulated Gene 4 (NDRG4) in fecal DNA is an established early detection marker for colorectal cancer (CRC). Despite its connection to CRC, NDRG4 is predominantly studied in brain and heart, with little to no knowledge about its expression or role in other organs. In this study, we aimed to determine the whole-body expression of NDRG4, with a focus on the intestinal tract. METHODS We investigated NDRG4 expression throughout the body by immunohistochemistry, Western Blotting and in situ mRNA hybridization using tissues from NDRG4 wild-type, heterozygous and knockout mice and humans. In addition, we explored cell-specific expression of NDRG4 in murine whole-mount gut preparations using immunofluorescence and confocal microscopy. KEY RESULTS NDRG4 is specifically expressed within nervous system structures throughout the body. In the intestinal tract of both mouse and man, NDRG4 immunoreactivity was restricted to the enteric nervous system (ENS), where it labeled cell bodies of the myenteric and submucosal plexuses and interconnecting nerve fibers. More precisely, NDRG4 expression was limited to neurons, as NDRG4 always co-localized with HuC/D (pan-neuronal marker) but never with GFAP (an enteric glial cell marker). Furthermore, NDRG4 was expressed in various neuropeptide Y positive neurons, but was only found in a minority (~10%) of neurons expressing neuronal nitric oxide synthase. CONCLUSIONS AND INFERENCES NDRG4 is exclusively expressed by central, peripheral and enteric neurons/nerves, suggesting a neuronal-specific role of this protein. Our findings raise the question whether NDRG4, via the ENS, an understudied component of the tumor microenvironment, supports CRC development and/or progression.
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Affiliation(s)
- N Vaes
- Department of Pathology, GROW-School for Oncology and Developmental Biology, Maastricht University Medical Center, Maastricht, The Netherlands
| | - M H F M Lentjes
- Department of Pathology, GROW-School for Oncology and Developmental Biology, Maastricht University Medical Center, Maastricht, The Netherlands
| | - M J Gijbels
- Departments of Pathology and Molecular Genetics, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Department of Medical Biochemistry, Academic Medical Center, Amsterdam, The Netherlands
| | - G Rademakers
- Department of Pathology, GROW-School for Oncology and Developmental Biology, Maastricht University Medical Center, Maastricht, The Netherlands
| | - K L Daenen
- Department of Pathology, GROW-School for Oncology and Developmental Biology, Maastricht University Medical Center, Maastricht, The Netherlands
| | - W Boesmans
- Department of Pathology, GROW-School for Oncology and Developmental Biology, Maastricht University Medical Center, Maastricht, The Netherlands.,Laboratory for Enteric Neuroscience (LENS); Translational Research Center for Gastrointestinal Disorders (TARGID), Department of Clinical and Experimental Medicine, University of Leuven, Leuven, Belgium
| | - K A D Wouters
- Department of Pathology, GROW-School for Oncology and Developmental Biology, Maastricht University Medical Center, Maastricht, The Netherlands
| | - A Geuzens
- Laboratory for Enteric Neuroscience (LENS); Translational Research Center for Gastrointestinal Disorders (TARGID), Department of Clinical and Experimental Medicine, University of Leuven, Leuven, Belgium
| | - X Qu
- Department of Pediatric Cardiology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - H P J Steinbusch
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience (MHeNS), Maastricht University Medical Centre, Maastricht, The Netherlands
| | - B P F Rutten
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience (MHeNS), Maastricht University Medical Centre, Maastricht, The Netherlands
| | - S H Baldwin
- Department of Pediatric Cardiology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - K A Sharkey
- Hotchkiss Brain Institute and Snyder Institute for Chronic Diseases, Department of Physiology and Pharmacology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - R M W Hofstra
- Department of Clinical Genetics, University of Rotterdam, EMC, Rotterdam, The Netherlands
| | - M van Engeland
- Department of Pathology, GROW-School for Oncology and Developmental Biology, Maastricht University Medical Center, Maastricht, The Netherlands
| | - P Vanden Berghe
- Laboratory for Enteric Neuroscience (LENS); Translational Research Center for Gastrointestinal Disorders (TARGID), Department of Clinical and Experimental Medicine, University of Leuven, Leuven, Belgium
| | - V Melotte
- Department of Pathology, GROW-School for Oncology and Developmental Biology, Maastricht University Medical Center, Maastricht, The Netherlands.,Department of Clinical Genetics, University of Rotterdam, EMC, Rotterdam, The Netherlands
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50
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Gao R, Kong C, Li H, Huang L, Qu X, Qin N, Qin H. Dysbiosis signature of mycobiota in colon polyp and colorectal cancer. Eur J Clin Microbiol Infect Dis 2017; 36:2457-2468. [DOI: 10.1007/s10096-017-3085-6] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Accepted: 07/31/2017] [Indexed: 02/06/2023]
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