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Zhao YK, Xie K, Bao LW, Chen YF, Luo XP, Shi HM, Zhu N, Yang MJ, Cheng X, Wang HY, Li J. [Recurrent syncope of unknown origin after ICD implantation: a case report]. Zhonghua Nei Ke Za Zhi 2022; 61:1366-1369. [PMID: 36456520 DOI: 10.3760/cma.j.cn112138-20211208-00872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Affiliation(s)
- Y K Zhao
- Department of Cardiology, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - K Xie
- Department of Cardiology, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - L W Bao
- Department of Cardiology, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Y F Chen
- Department of Cardiology, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - X P Luo
- Department of Cardiology, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - H M Shi
- Department of Cardiology, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - N Zhu
- Department of Respiratory, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - M J Yang
- Department of Emergency, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - X Cheng
- Department of Neurology, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - H Y Wang
- Department of Medical Department, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - J Li
- Department of Cardiology, Huashan Hospital, Fudan University, Shanghai 200040, China
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Demkowicz MJ, Liu M, McCue ID, Seita M, Stuckner J, Xie K. Quantitative multi-image analysis in metals research. MRS Commun 2022; 12:1030-1036. [PMID: 36474648 PMCID: PMC9718709 DOI: 10.1557/s43579-022-00265-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Accepted: 09/02/2022] [Indexed: 06/17/2023]
Abstract
UNLABELLED Quantitative multi-image analysis (QMA) is the systematic extraction of new information and insight through the simultaneous analysis of multiple, related images. We present examples illustrating the potential for QMA to advance materials research in multi-image characterization, automatic feature identification, and discovery of novel processing-structure-property relationships. We conclude by discussing opportunities and challenges for continued advancement of QMA, including instrumentation development, uncertainty quantification, and automatic parsing of literature data. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1557/s43579-022-00265-7.
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Affiliation(s)
- M. J. Demkowicz
- Department of Materials Science and Engineering, Texas A&M University, College Station, TX 77843 USA
| | - M. Liu
- Physics and Engineering Department, Washington and Lee University, Lexington, VA 24450 USA
| | - I. D. McCue
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL 60208 USA
| | - M. Seita
- School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore, 639798 Singapore
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798 Singapore
| | - J. Stuckner
- Materials and Structures Division, NASA Glenn Research Center, 21000 Brookpark Rd, Cleveland, OH 44135 USA
| | - K. Xie
- Department of Materials Science and Engineering, Texas A&M University, College Station, TX 77843 USA
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Vigneswaran H, Uyanik M, Xie K, Macias V, Balla A, Magin R, Cai K, Damen F, Zhou X, Gann P, Abern M. Biparametric quantitative MRI for prostate cancer detection. Eur Urol 2022. [DOI: 10.1016/s0302-2838(22)00812-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Zheng C, Xie K, Li X, Wang G, Luo J, Zhang C, Jiang Z, Wang Y, Luo C, Qiang Y, Hu L, Wang Y, Shen Y. The prognostic value of modified nutric score for patients in cardiothoracic surgery recovery unit: a retrospective cohort study. Clin Nutr ESPEN 2021. [DOI: 10.1016/j.clnesp.2021.09.295] [Citation(s) in RCA: 1] [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: 11/28/2022]
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Boudet JF, Lintuvuori J, Lacouture C, Barois T, Deblais A, Xie K, Cassagnere S, Tregon B, Brückner DB, Baret JC, Kellay H. From collections of independent, mindless robots to flexible, mobile, and directional superstructures. Sci Robot 2021; 6:6/56/eabd0272. [PMID: 34290101 DOI: 10.1126/scirobotics.abd0272] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Accepted: 06/23/2021] [Indexed: 12/15/2022]
Abstract
A swarm of simple active particles confined in a flexible scaffold is a promising system to make mobile and deformable superstructures. These soft structures can perform tasks that are difficult to carry out for monolithic robots because they can infiltrate narrow spaces, smaller than their size, and move around obstacles. To achieve such tasks, the origin of the forces the superstructures develop, how they can be guided, and the effects of external environment, especially geometry and the presence of obstacles, need to be understood. Here, we report measurements of the forces developed by such superstructures, enclosing a number of mindless active rod-like robots, as well as the forces exerted by these structures to achieve a simple function, crossing a constriction. We relate these forces to the self-organization of the individual entities. Furthermore, and based on a physical understanding of what controls the mobility of these superstructures and the role of geometry in such a process, we devise a simple strategy where the environment can be designed to bias the mobility of the superstructure, giving rise to directional motion. Simple tasks-such as pulling a load, moving through an obstacle course, or cleaning up an arena-are demonstrated. Rudimentary control of the superstructures using light is also proposed. The results are of relevance to the making of robust flexible superstructures with nontrivial space exploration properties out of a swarm of simpler and cheaper robots.
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Affiliation(s)
- J F Boudet
- Univ. Bordeaux, CNRS, LOMA, UMR 5798, F-33400 Talence, France
| | - J Lintuvuori
- Univ. Bordeaux, CNRS, LOMA, UMR 5798, F-33400 Talence, France
| | - C Lacouture
- Univ. Bordeaux, CNRS, LOMA, UMR 5798, F-33400 Talence, France
| | - T Barois
- Univ. Bordeaux, CNRS, LOMA, UMR 5798, F-33400 Talence, France
| | - A Deblais
- Van der Waals-Zeeman Institute, Institute of Physics, University of Amsterdam, 1098XH Amsterdam, Netherlands
| | - K Xie
- Univ. Bordeaux, CNRS, LOMA, UMR 5798, F-33400 Talence, France
| | - S Cassagnere
- Univ. Bordeaux, CNRS, LOMA, UMR 5798, F-33400 Talence, France
| | - B Tregon
- Univ. Bordeaux, CNRS, LOMA, UMR 5798, F-33400 Talence, France
| | - D B Brückner
- Arnold Sommerfeld Center for Theoretical Physics and Center for NanoScience, Ludwig-Maximilian-University Munich, Theresienstr. 37, D-80333 Munich, Germany
| | - J C Baret
- Univ. Bordeaux, CNRS, CRPP-UMR5031, 33600 Pessac, France.,Institut Universitaire de France, 75005 Paris, France
| | - H Kellay
- Univ. Bordeaux, CNRS, LOMA, UMR 5798, F-33400 Talence, France. .,Institut Universitaire de France, 75005 Paris, France
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Zhang P, Fan Y, Xie K, Kang L, Yang Q, Guan W, Chen A, Tang Q. PO-0814: Clinical feature and survival result of ascending, descending, mixed types of NPC in nonendemic area. Radiother Oncol 2020. [DOI: 10.1016/s0167-8140(21)00831-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Bao LW, Liu RC, Yan FY, Gao XF, Xie K, Bao LL, Zhuang XY, Shi HM, Li Y. [Research progress on sodium-glucose co-transporter 2 inhibitors for the treatment of cardiovascular diseases]. Zhonghua Xin Xue Guan Bing Za Zhi 2020; 48:339-343. [PMID: 32370487 DOI: 10.3760/cma.j.cn112148-20190612-00332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- L W Bao
- Department of Cardiology, Fudan University Affiliated Shanghai Huashan Hospital, Shanghai 200040, China
| | - R C Liu
- Department of Cardiology, Fudan University Affiliated Shanghai Huashan Hospital, Shanghai 200040, China
| | - F Y Yan
- Department of Cardiology, Fudan University Affiliated Shanghai Huashan Hospital, Shanghai 200040, China
| | - X F Gao
- Department of Cardiology, Fudan University Affiliated Shanghai Huashan Hospital, Shanghai 200040, China
| | - K Xie
- Department of Cardiology, Fudan University Affiliated Shanghai Huashan Hospital, Shanghai 200040, China
| | - L L Bao
- Department of Cardiology, Fudan University Affiliated Shanghai Huashan Hospital, Shanghai 200040, China
| | - X Y Zhuang
- Department of Cardiology, Fudan University Affiliated Shanghai Huashan Hospital, Shanghai 200040, China
| | - H M Shi
- Department of Cardiology, Fudan University Affiliated Shanghai Huashan Hospital, Shanghai 200040, China
| | - Y Li
- Department of Cardiology, Fudan University Affiliated Shanghai Huashan Hospital, Shanghai 200040, China
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Zheng T, Xie HH, Wu XW, Chi Q, Wang F, Yang ZH, Chen CW, Mai W, Luo SM, Song XF, Yang SM, Zhou W, Liu HY, Xu XJ, Zhou Z, Liu CY, Ding LA, Xie K, Han G, Liu HB, Wang JZ, Wang SC, Wang PG, Wang GF, Gu GS, Ren JA. [Investigation of treatment and analysis of prognostic risk on enterocutaneous fistula in China: a multicenter prospective study]. Zhonghua Wei Chang Wai Ke Za Zhi 2019; 22:1041-1050. [PMID: 31770835 DOI: 10.3760/cma.j.issn.1671-0274.2019.11.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Objective: To investigate the diagnosis and treatment for enterocutaneous fistula (ECF) in China, and to explore the prognostic factors of ECF. Methods: A multi-center cross-sectional study was conducted based on the Registration System of Chinese Gastrointestinal Fistula and Intra-Abdominal Infections to collect the clinical data of ECF patients from 54 medical centers in 22 provinces/municipalities from January 1, 2018 to December 31, 2018. The clinical data included patient gender, age, length of hospital stay, intensive care unit (ICU) admission, underlying diseases, primary diseases, direct causes of ECF, location and type of ECF, complications, treatment and outcomes. All medical records were carefully filled in by the attending physicians, and then re-examined by more than two specialists. The diagnosis of ECF was based on the clinical manifestations, laboratory/imaging findings and intraoperative exploration. Results: A total of 1521 patients with ECF were enrolled, including 1099 males and 422 females, with a median age of 55 years. The top three primary diseases of ECF were malignant tumors in 626 cases (41.2%, including 540 gastrointestinal tumors, accounting for 86.3% of malignant tumors), gastrointestinal ulcers and perforations in 202 cases (13.3%), and trauma in 157 cases (10.3%). The direct causes of ECF were mainly surgical operation in 1194 cases (78.5%), followed by trauma in 156 (10.3%), spontaneous fistula due to Crohn's disease in 92 (6.0%), radiation intestinal injury in 41 (2.7%), severe pancreatitis in 20 (1.3%), endoscopic treatment in 13 (0.9%) and 5 cases (0.3%) of unknown reasons. All the patients were divided into three groups: 1350 cases (88.7%) with simple ECF, 150 (9.9%) with multiple ECF, and 21 (1.4%) with combined internal fistula. Among the patients with simple ECF, 438 cases (28.8%) were jejuno-ileal fistula, 313 (20.6%) colon fistula, 170 (11.2%) rectal fistula, 111 (7.3%) duodenal fistula, 76 (5.0%) ileocecal fistula, 65 (4.3%) ileocolic anastomotic fistula, 55 (3.6%) duodenal stump fistula, 36 (2.4%) gastrointestinal anastomotic fistula, 36 (2.4%) esophagogastric/esophagojejunal anastomotic fistula, 29 (1.9%) gastric fistula and 21 (1.4%) cholangiopancreatiointestinal. Among all the simple ECF patients, 991 were tubular fistula and 359 were labial fistula. A total of 1146 patients finished the treatment, of whom 1061 (92.6%) were healed (586 by surgery and 475 self-healing) and 85 (7.4%) died. A total of 1043 patients (91.0%) received nutritional support therapy, and 77 (6.7%) received fistuloclysis. Infectious source control procedures were applied to 1042 patients, including 711 (62.0%) with active lavage and drainage and 331 (28.9%) with passive drainage. Among them, 841 patients (73.4%) underwent minimally invasive procedures of infectious source control (replacement of drainage tube through sinus tract, puncture drainage, etc.), 201 (17.5%) underwent laparotomy drainage, while 104 (9.1%) did not undergo any drainage measures. A total of 610 patients (53.2%) received definitive operation, 24 patients died within postoperative 30-day with mortality of 3.9% (24/610), 69 (11.3%) developed surgical site infection (SSI), and 24 (3.9%) had a relapse of fistula. The highest cure rate was achieved in ileocecal fistula (100%), followed by rectal fistula (96.2%, 128/133) and duodenal stump fistula (95.7%,44/46). The highest mortality was found in combined internal fistula (3/12) and no death in ileocecal fistula. Univariate prognostic analysis showed that primary diseases as Crohn's disease (χ(2)=6.570, P=0.010) and appendicitis/appendiceal abscess (P=0.012), intestinal fistula combining with internal fistula (χ(2)=5.460, P=0.019), multiple ECF (χ(2)=7.135, P=0.008), esophagogastric / esophagojejunal anastomotic fistula (χ(2)=9.501, P=0.002), ECF at ileocecal junction (P=0.012), non-drainage/passive drainage before the diagnosis of intestinal fistula (χ(2)=9.688, P=0.008), non-drainage/passive drainage after the diagnosis of intestinal fistula (χ(2)=9.711, P=0.008), complicating with multiple organ dysfunction syndrome (MODS) (χ(2)=179.699, P<0.001), sepsis (χ(2)=211.851, P<0.001), hemorrhage (χ(2)=85.300, P<0.001), pulmonary infection (χ(2)=60.096, P<0.001), catheter-associated infection (χ(2)=10.617, P=0.001) and malnutrition (χ(2)=21.199, P<0.001) were associated with mortality. Multivariate prognostic analysis cofirmed that sepsis (OR=7.103, 95%CI:3.694-13.657, P<0.001), complicating with MODS (OR=5.018, 95%CI:2.170-11.604, P<0.001), and hemorrhage (OR=4.703, 95%CI: 2.300-9.618, P<0.001) were independent risk factors of the death for ECF patients. Meanwhile, active lavage and drainage after the definite ECF diagnosis was the protective factor (OR=0.223, 95%CI: 0.067-0.745, P=0.015). Conclusions: The overall mortality of ECF is still high. Surgical operation is the most common cause of ECF. Complications e.g. sepsis, MODS, hemorrhage, and catheter-associated infection, are the main causes of death. Active lavage and drainage is important to improve the prognosis of ECF.
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Affiliation(s)
- T Zheng
- Research Institute of General Surgery, East War Zone Hospital of PLA, Nanjing 210002, China
| | - H H Xie
- Research Institute of General Surgery, East War Zone Hospital of PLA, Nanjing 210002, China
| | - X W Wu
- Research Institute of General Surgery, East War Zone Hospital of PLA, Nanjing 210002, China
| | - Q Chi
- Department of General Surgery, The Second Affiliated Hospital, Harbin Medical University, Harbin 150086, China
| | - F Wang
- Department of Gastrointestinal Surgery, Affiliated Beijing Tsinghua Changgung Hospital, Tsinghua University, Beijing 102218, China
| | - Z H Yang
- Department of General Surgery, The First College of Clinical Medical Science, China Three Gorges University, Hubei Yichang 443000, China
| | - C W Chen
- Department of Gastrointestinal Surgery, Hunan Provincial People's Hospital, Changsha 410005, China
| | - W Mai
- Department of Gastrointestinal Surgery, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning 530021, China
| | - S M Luo
- Department of Emergency Trauma Surgery, The People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi 830001, China
| | - X F Song
- Department of Gastrointestinal Surgery, Henan Provincial People's Hospital, Medical College of Henan University, Zhengzhou 450003, China
| | - S M Yang
- Department of Gastrointestinal Surgery, The Nankai Hospital, Nankai University, Tianjin 300100, China
| | - W Zhou
- Department of General Surgery, Sir Run Run Shaw Hospital, Medicine of School, Zhejiang University, Hangzhou 310016, China
| | - H Y Liu
- Department of Emergency Surgery, The First Affiliated Hospital, Zhengzhou University, Zhengzhou 450000, China
| | - X J Xu
- Department of Pancreatic Surgery, The First Affiliated Hospital, Xinjiang Medical University, Urumqi 830054, China
| | - Z Zhou
- Department of Gastrointestinal Surgery, The First Affiliated Hospital, Division of Life Sciences And Medicine, University of Science and Technology of China, Hefei 230001, China
| | - C Y Liu
- Department of Gastrointestinal Surgery and Hernia Surgery, Ganzhou People's Hospital of Jiangxi Province, Jiangxi Ganzhou 341000, China
| | - L A Ding
- Department of Gastrointestinal Surgery, Affiliated Hospital, Qingdao University, Shandong Qingdao 266003, China
| | - K Xie
- Department of General Surgery, Chest Hospital of Nanyang City of Henan Province, Henan Nanyang 473000, China
| | - G Han
- Department of Gastrointestinal Surgery, The Second Hospital of Jilin University, Changchun 130041, China
| | - H B Liu
- Department of GeneralSurgery, The 940th Hospital, Joint Logistics Support Force of Chinese PLA, Lanzhou 730050, China
| | - J Z Wang
- Department of Gastrointestinal Surgery, The First Affiliated Hospital, Gannan Medical College, Jiangxi Ganzhou 341000, China
| | - S C Wang
- Department of General Surgery, The 901th Hospital, Joint Logistic Support Force of PLA, Hefei 230031, China
| | - P G Wang
- Department of Emergency Surgery, Affiliated Hospital, Qingdao University, Shandong Qingdao 266003, China
| | - G F Wang
- Research Institute of General Surgery, East War Zone Hospital of PLA, Nanjing 210002, China
| | - G S Gu
- Research Institute of General Surgery, East War Zone Hospital of PLA, Nanjing 210002, China
| | - J A Ren
- Research Institute of General Surgery, East War Zone Hospital of PLA, Nanjing 210002, China
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Zhang P, Li Z, Yang F, Lang J, Huang X, Kang L, Xie K, Guan W. A Phase II Prospective, Single Arm, Multicenter Clinic Study of Pulsed Low-Dose-Rate IMRT for Local Recurrence Head and Neck Cancer after Radical Radiotherapy and Chemotherapy: Preliminary Reports. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.1171] [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: 10/26/2022]
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Sun GY, Xie K, Sun ZY, Sun MY, Li N. Sevoflurane induces temporary spatial working memory deficits and synaptic ultrastructure impairments in the hippocampus of neonatal rats. Eur Rev Med Pharmacol Sci 2019; 23:2620-2629. [PMID: 30964191 DOI: 10.26355/eurrev_201903_17412] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Exposure to volatile anesthetics in neonatal rats could induce neurotoxicity, learning deficits and abnormal social behaviors. The aim of this study is to investigate the potential neurotoxicity induced by sevoflurane. MATERIALS AND METHODS Postnatal day 7 (P7) Sprague-Dawley (SD) rats were continuously exposed to 2% sevoflurane plus 40% oxygen/air for 2 h. We used Morris water maze (MWM) to examine subsequent neurobehavioral performance. Transmission electron microscopy (TEM) was used to observe the histopathological changes in the hippocampus. RESULTS Neonatal exposure to 2% sevoflurane for 2 hours impaired short-term spatial working memory but not reference memory at P25. It induced synaptic ultrastructure impairments in the CA3 region of hippocampal, including fewer numbers of synapses, thinner thickness of postsynaptic dense, broader synaptic cleft width and smaller synaptic curvature. Our results also showed that all synaptic ultrastructure impairments and neurocognitive deficits had almost completely recovered at P53. CONCLUSIONS We showed that a single sevoflurane exposure to neonatal rats led to temporary spatial working memory deficits. It might be associated with synaptic ultrastructure impairments in the CA3 region of the hippocampus, including fewer numbers of synapses, thinner thickness of PSD and broader synaptic cleft width. Fortunately, all the neurotoxicity and neurocognitive deficits were reversible.
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Affiliation(s)
- G-Y Sun
- Department of Anesthesiology, the Second Hospital of Shandong University, Jinan, China.
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Zhu M, Wang L, Yang J, Xie K, Zhu M, Liu S, Xu C, Wang J, Gu L, Ni Z, Xu G, Che M. Erythropoietin Ameliorates Lung Injury by Accelerating Pulmonary Endothelium Cell Proliferation via Janus Kinase-Signal Transducer and Activator of Transcription 3 Pathway After Kidney Ischemia and Reperfusion Injury. Transplant Proc 2019; 51:972-978. [PMID: 30979490 DOI: 10.1016/j.transproceed.2019.01.059] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Revised: 11/19/2018] [Accepted: 01/17/2019] [Indexed: 12/11/2022]
Abstract
BACKGROUND/AIMS Kidney ischemia and reperfusion injury could cause microvascular barrier dysfunction, lung inflammatory cascades activation, and programmed cell death of pulmonary endothelium, leading to acute lung injury. Our study aimed at determining whether erythropoietin (EPO) can ameliorate lung dysfunction following renal ischemia and reperfusion (IR) injury and explored the underlying mechanisms. METHODS In vivo, C57BL/6 mice received EPO (6000 U/kg) before right renal vascular pedicles clamping for 30 minutes, followed by 24 hours of reperfusion. The lung histopathologic changes and inflammatory cytokines expression were assessed. In vitro, cultured human umbilical vein endothelial cells were treated with EPO, and apoptosis rate, proliferation capacity, and phosphorylation status of the Janus kinase-signal transducer and activator of transcription 3 (Jak-STAT3) pathway were measured respectively in the presence or absence of lipopolysaccharide stimulation. RESULTS In vivo, EPO remarkably attenuated pulmonary interstitial and alveolar epithelial edema caused by renal IR injury. In vitro, the proliferation capacity of human umbilical vein endothelial cells was significantly increased under EPO stimulation, which correlated with changes in Jak-STAT3 signaling. CONCLUSION Our data indicated that EPO is able to ameliorate acute lung tissue damage induced by renal IR, and at least in part, via the Jak-STAT3 pathway.
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Affiliation(s)
- M Zhu
- Department of Critical Care Medicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - L Wang
- Department of Emergency, South Campus, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - J Yang
- Department of Biochemistry and Molecular Cell Biology, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - K Xie
- Department of Nephrology, Molecular Cell Lab for Kidney Disease, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - M Zhu
- Department of Nephrology, South Campus, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - S Liu
- Department of Nephrology, South Campus, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - C Xu
- Department of Nephrology, Molecular Cell Lab for Kidney Disease, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - J Wang
- Department of Critical Care Medicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - L Gu
- Department of Nephrology, Molecular Cell Lab for Kidney Disease, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Z Ni
- Department of Nephrology, Molecular Cell Lab for Kidney Disease, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - G Xu
- Department of Cardiovascular Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
| | - M Che
- Department of Nephrology, Molecular Cell Lab for Kidney Disease, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
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Zhang P, Xie K, Huang X, Li C, Song Y, Li B, Liao W, Zhang S. Early Nutrition Support Therapy to Improve the Nutrition Status of Head and Neck Cancer Patients Accepted Concurrent Chemoradiotherapy(NSTIP):Interim Analysis from a Prospective Randomized Controlled Clinical Study. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.07.1988] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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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Zhang P, Xie K, Huang X, Li C, Song Y. The Prognostic Factors of Metastatic Nasopharyngeal Carcinoma at Initial Diagnosis: A Retrospective Analysis. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.07.1132] [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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Ryan DP, Henzel KS, Pearson BL, Siwek ME, Papazoglou A, Guo L, Paesler K, Yu M, Müller R, Xie K, Schröder S, Becker L, Garrett L, Hölter SM, Neff F, Rácz I, Rathkolb B, Rozman J, Ehninger G, Klingenspor M, Klopstock T, Wolf E, Wurst W, Zimmer A, Fuchs H, Gailus-Durner V, Hrabě de Angelis M, Sidiropoulou K, Weiergräber M, Zhou Y, Ehninger D. A paternal methyl donor-rich diet altered cognitive and neural functions in offspring mice. Mol Psychiatry 2018; 23:1345-1355. [PMID: 28373690 PMCID: PMC5984088 DOI: 10.1038/mp.2017.53] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2016] [Revised: 02/13/2017] [Accepted: 02/14/2017] [Indexed: 12/17/2022]
Abstract
Dietary intake of methyl donors, such as folic acid and methionine, shows considerable intra-individual variation in human populations. While it is recognized that maternal departures from the optimum of dietary methyl donor intake can increase the risk for mental health issues and neurological disorders in offspring, it has not been explored whether paternal dietary methyl donor intake influences behavioral and cognitive functions in the next generation. Here, we report that elevated paternal dietary methyl donor intake in a mouse model, transiently applied prior to mating, resulted in offspring animals (methyl donor-rich diet (MD) F1 mice) with deficits in hippocampus-dependent learning and memory, impaired hippocampal synaptic plasticity and reduced hippocampal theta oscillations. Gene expression analyses revealed altered expression of the methionine adenosyltransferase Mat2a and BK channel subunit Kcnmb2, which was associated with changes in Kcnmb2 promoter methylation in MD F1 mice. Hippocampal overexpression of Kcnmb2 in MD F1 mice ameliorated altered spatial learning and memory, supporting a role of this BK channel subunit in the MD F1 behavioral phenotype. Behavioral and gene expression changes did not extend into the F2 offspring generation. Together, our data indicate that paternal dietary factors influence cognitive and neural functions in the offspring generation.
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Affiliation(s)
- D P Ryan
- Molecular and Cellular Cognition Lab, German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
| | - K S Henzel
- Molecular and Cellular Cognition Lab, German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
| | - B L Pearson
- Molecular and Cellular Cognition Lab, German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
| | - M E Siwek
- Department of Neuropsychopharmacology, Federal Institute for Drugs and Medical Devices (BfArM), Bonn, Germany
| | - A Papazoglou
- Department of Neuropsychopharmacology, Federal Institute for Drugs and Medical Devices (BfArM), Bonn, Germany
| | - L Guo
- Department of Physiology, Medical College of Qingdao University, Qingdao, Shandong, China
| | - K Paesler
- Molecular and Cellular Cognition Lab, German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
| | - M Yu
- Department of Physiology, Medical College of Qingdao University, Qingdao, Shandong, China
| | - R Müller
- Department of Psychiatry and Psychotherapy, University of Cologne, Faculty of Medicine, Cologne, Germany
| | - K Xie
- Molecular and Cellular Cognition Lab, German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
| | - S Schröder
- Molecular and Cellular Cognition Lab, German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
| | - L Becker
- German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany,Friedrich-Baur-Institut, Department of Neurology, Ludwig-Maximilians-Universität München, Munich, Germany
| | - L Garrett
- German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany,Institute of Developmental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - S M Hölter
- German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany,Institute of Developmental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - F Neff
- German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany,Institute of Pathology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - I Rácz
- Institute of Molecular Psychiatry, Medical Faculty, University of Bonn, Bonn, Germany
| | - B Rathkolb
- German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany,Chair of Molecular Animal Breeding and Biotechnology, Gene Center, Ludwig-Maximilians-Universität München, Munich, Germany,Member of German Center for Diabetes Research (DZD), München-Neuherberg, Germany
| | - J Rozman
- German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany,Member of German Center for Diabetes Research (DZD), München-Neuherberg, Germany
| | - G Ehninger
- Department of Internal Medicine I, University Hospital Carl Gustav Carus, Technical University Dresden, Dresden, Germany
| | - M Klingenspor
- Molecular Nutritional Medicine, Else Kröner-Fresenius Center, Technische Universität München, Freising-Weihenstephan, Germany
| | - T Klopstock
- Friedrich-Baur-Institut, Department of Neurology, Ludwig-Maximilians-Universität München, Munich, Germany,German Center for Vertigo and Balance Disorders, University Hospital Munich, Campus Grosshadern, Munich, Germany,DZNE, German Center for Neurodegenerative Diseases, Munich, Germany,Munich Cluster for Systems Neurology (SyNergy), Adolf-Butenandt-Institut, Ludwig-Maximilians-Universität München, Munich, Germany
| | - E Wolf
- Chair of Molecular Animal Breeding and Biotechnology, Gene Center, Ludwig-Maximilians-Universität München, Munich, Germany
| | - W Wurst
- Institute of Developmental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany,DZNE, German Center for Neurodegenerative Diseases, Munich, Germany,Munich Cluster for Systems Neurology (SyNergy), Adolf-Butenandt-Institut, Ludwig-Maximilians-Universität München, Munich, Germany,Chair of Developmental Genetics, Technische Universität München, c/o Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - A Zimmer
- Institute of Molecular Psychiatry, Medical Faculty, University of Bonn, Bonn, Germany
| | - H Fuchs
- German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - V Gailus-Durner
- German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - M Hrabě de Angelis
- German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany,Member of German Center for Diabetes Research (DZD), München-Neuherberg, Germany,Chair of Experimental Genetics, Center of Life and Food Sciences Weihenstephan, Technische Universität München, Freising-Weihenstephan, Germany
| | - K Sidiropoulou
- Department of Biology, University of Crete, Vassilika Vouton, Heraklio, Greece
| | - M Weiergräber
- Department of Neuropsychopharmacology, Federal Institute for Drugs and Medical Devices (BfArM), Bonn, Germany
| | - Y Zhou
- Department of Physiology, Medical College of Qingdao University, Qingdao, Shandong, China
| | - D Ehninger
- Molecular and Cellular Cognition Lab, German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany,Molecular and Cellular Cognition Lab, German Center for Neurodegenerative Diseases (DZNE), Sigmund-Freud-Str. 27, Bonn 53127, Germany. E-mail:
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15
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Gedling CR, Ali EM, Gunadi A, Finer JJ, Xie K, Liu Y, Yoshikawa N, Qu F, Dorrance AE. Improved apple latent spherical virus-induced gene silencing in multiple soybean genotypes through direct inoculation of agro-infiltrated Nicotiana benthamiana extract. Plant Methods 2018. [PMID: 29527233 PMCID: PMC5838930 DOI: 10.1186/s13007-018-0286-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
BACKGROUND Virus induced gene silencing (VIGS) is a powerful genomics tool for interrogating the function of plant genes. Unfortunately, VIGS vectors often produce disease symptoms that interfere with the silencing phenotypes of target genes, or are frequently ineffective in certain plant genotypes or tissue types. This is especially true in crop plants like soybean [Glycine max (L.) Merr]. To address these shortcomings, we modified the inoculation procedure of a VIGS vector based on Apple latent spherical virus (ALSV). The efficacy of this new procedure was assessed in 19 soybean genotypes using a soybean Phytoene desaturase (GmPDS1) gene as the VIGS target. Silencing of GmPDS1 was easily scored as photo-bleached leaves and/or stems. RESULTS In this report, the ALSV VIGS vector was modified by mobilizing ALSV cDNAs into a binary vector compatible with Agrobacterium tumefaciens-mediated delivery, so that VIGS-triggering ALSV variants could be propagated in agro-infiltrated Nicotiana benthamiana leaves. Homogenate of these N. benthamiana leaves was then applied directly onto the unifoliate of young soybean seedlings to initiate systemic gene silencing. This rapid inoculation method bypassed the need for a particle bombardment apparatus. Among the 19 soybean genotypes evaluated with this new method, photo-bleaching indicative of GmPDS1 silencing was observed in nine, with two exhibiting photo-bleaching in 100% of the inoculated individuals. ALSV RNA was detected in pods, embryos, stems, leaves, and roots in symptomatic plants of four genotypes. CONCLUSIONS This modified protocol allowed for inoculation of soybean plants via simple mechanical rubbing with the homogenate of N. benthamiana leaves agro-infiltrated with ALSV VIGS constructs. More importantly, inoculated plants showed no apparent virus disease symptoms which could otherwise interfere with VIGS phenotypes. This streamlined procedure expanded this functional genomics tool to nine soybean genotypes.
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Affiliation(s)
- C. R. Gedling
- Department of Plant Pathology, The Ohio State University, 1680 Madison Avenue, Wooster, OH 44691 USA
| | - E. M. Ali
- Department of Plant Pathology, The Ohio State University, 1680 Madison Avenue, Wooster, OH 44691 USA
- Present Address: Washington State University, 1100 N Western Ave., Wenatchee, WA 98801 USA
| | - A. Gunadi
- Department of Horticulture and Crop Science, The Ohio State University, 1680 Madison Avenue, Wooster, OH 44691 USA
| | - J. J. Finer
- Department of Horticulture and Crop Science, The Ohio State University, 1680 Madison Avenue, Wooster, OH 44691 USA
| | - K. Xie
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, China
| | - Y. Liu
- MOE Key Laboratory of Bioinformatics, Center for Plant Biology, Tsinghua-Peking Joint Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing, 100084 China
| | - N. Yoshikawa
- Plant Pathology Lab, Facility of Agriculture, Iwate University, Morioka, Japan
| | - F. Qu
- Department of Plant Pathology, The Ohio State University, 1680 Madison Avenue, Wooster, OH 44691 USA
| | - A. E. Dorrance
- Department of Plant Pathology, The Ohio State University, 1680 Madison Avenue, Wooster, OH 44691 USA
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16
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Fu Q, Xie K, McKenzie TG, Qiao GG. Trithiocarbonates as intrinsic photoredox catalysts and RAFT agents for oxygen tolerant controlled radical polymerization. Polym Chem 2017. [DOI: 10.1039/c6py01994c] [Citation(s) in RCA: 96] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
In this study, we reported on the discovery that trithiocarbonates (RAFT agents) can act as intrinsic photocatalyst to significantly reduce the oxygen level in a controlled radical polymerization under visible light irridation.
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Affiliation(s)
- Q. Fu
- Department of Chemical and Biomolecular Engineering
- The University of Melbourne
- Parkville
- Australia
| | - K. Xie
- Department of Chemical and Biomolecular Engineering
- The University of Melbourne
- Parkville
- Australia
| | - T. G. McKenzie
- Department of Chemical and Biomolecular Engineering
- The University of Melbourne
- Parkville
- Australia
| | - G. G. Qiao
- Department of Chemical and Biomolecular Engineering
- The University of Melbourne
- Parkville
- Australia
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17
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Bian Y, Qin C, Xie K, Yu Y, Yu Y. Abstract PR087. Anesth Analg 2016. [DOI: 10.1213/01.ane.0000492493.42566.1e] [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: 11/05/2022]
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18
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Cui J, Xia T, Xie D, Gao Y, Jia Z, Wei D, Wang L, Huang S, Quan M, Xie K. HGF/Met and FOXM1 form a positive feedback loop and render pancreatic cancer cells resistance to Met inhibition and aggressive phenotypes. Oncogene 2016; 35:4708-18. [PMID: 26876216 PMCID: PMC4985506 DOI: 10.1038/onc.2016.14] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Revised: 11/30/2015] [Accepted: 12/27/2015] [Indexed: 02/06/2023]
Abstract
Purpose Hepatocyte growth factor (HGF)/Met signaling plays critical roles in pancreatic ductal adenocarcinoma (PDA) development and progression and is considered a potential therapeutic target for this disease. However, the mechanism of aberrant activation of HGF/Met signaling and resistance to Met inhibition in PDA remains unclear. Experimental Design The mechanistic role of cross-talk between Forkhead box M1 (FOXM1) and HGF/Met signaling in promotion of PDA growth and resistance to Met inhibition was examined using cell culture, molecular biology and mouse models; and the relevance of our experimental and mechanistic findings were validated using human PDA tissues. Results Met was markedly overexpressed in both PDA cell lines and pancreatic tumor specimens, and the expression of Met correlated directly with that of FOXM1 in human tumor specimens. Mechanistically, FOXM1 bound to the promoter region of the Met gene and transcriptionally increased the expression of Met. Increased expression of FOXM1 enhanced the activation of HGF/Met signaling and its downstream pathways, including RAS/extracellular signal-regulated kinase 1/2, phosphoinositide 3-kinase/AKT, and signal transducer and activator of transcription 3. Furthermore, activation of HGF/Met signaling increased the expression and transcriptional activity of FOXM1, and the cross-talk between FOXM1 and HGF/Met signaling promoted PDA growth and resistance to Met inhibition. Conclusions Collectively, our findings identified a positive feedback loop formed by FOXM1 and HGF/Met and revealed that this loop is a potentially effective therapeutic target for PDA.
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Affiliation(s)
- J Cui
- Department of Gastroenterology, Hepatology and Nutrition, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - T Xia
- Department of Gastroenterology, Shanghai Changhai Hospital, Second Military Medical University, Shanghai, People's Republic of China
| | - D Xie
- Department of Oncology, Shanghai Tongji University Affiliated East Hospital, Shanghai, People's Republic of China
| | - Y Gao
- Department of Oncology, Shanghai Tongji University Affiliated East Hospital, Shanghai, People's Republic of China
| | - Z Jia
- Department of Gastroenterology, Hepatology and Nutrition, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - D Wei
- Department of Gastroenterology, Hepatology and Nutrition, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - L Wang
- Department of Gastroenterology, Hepatology and Nutrition, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - S Huang
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - M Quan
- Department of Gastroenterology, Hepatology and Nutrition, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.,Department of Oncology, Shanghai Tongji University Affiliated East Hospital, Shanghai, People's Republic of China
| | - K Xie
- Department of Gastroenterology, Hepatology and Nutrition, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
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19
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Fu Q, Xie K, Tan S, Ren JM, Zhao Q, Webley PA, Qiao GG. The use of reduced copper metal–organic frameworks to facilitate CuAAC click chemistry. Chem Commun (Camb) 2016; 52:12226-12229. [DOI: 10.1039/c6cc06890a] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A reduced copper metal–organic framework (rCu-MOF) containing CuI ions was prepared and employed as a catalyst for ‘Click’ reactions. The rCu-MOF presents higher catalytic activity, good structural stability as well as facile recyclability compared to traditional copper halide catalysts.
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Affiliation(s)
- Q. Fu
- Department of Chemical and Biomolecular Engineering
- The University of Melbourne
- Parkville
- Australia
| | - K. Xie
- Department of Chemical and Biomolecular Engineering
- The University of Melbourne
- Parkville
- Australia
| | - S. Tan
- Department of Chemical and Biomolecular Engineering
- The University of Melbourne
- Parkville
- Australia
| | - J. M. Ren
- Department of Chemical and Biomolecular Engineering
- The University of Melbourne
- Parkville
- Australia
| | - Q. Zhao
- Department of Chemical and Biomolecular Engineering
- The University of Melbourne
- Parkville
- Australia
| | - P. A. Webley
- Department of Chemical and Biomolecular Engineering
- The University of Melbourne
- Parkville
- Australia
| | - G. G. Qiao
- Department of Chemical and Biomolecular Engineering
- The University of Melbourne
- Parkville
- Australia
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20
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Qiao J, Yang HB, Peng YL, Meng QL, Chen C, Ma Y, Xie K, Liu TL, Cai XP, Chen CF. Effect of ORF119 gene deletion on the replication and virulence of orf virus. Acta Virol 2015; 59:257-64. [PMID: 26435149 DOI: 10.4149/av_2015_03_257] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [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
Orf is a severe infectious disease of sheep and goats caused by orf virus (ORFV). To investigate the role of ORF119 gene of ORFV, we constructed ORFV with deleted ORF119 gene and LacZ as reporter gene (ORFV-Δ119-LacZ) via homologous recombination. The results showed that wild-type ORF-SHZ1 and ORFV-Δ119-LacZ deletion viruses replicated in Vero cells to similar titers. Relative transcriptional levels of virulence genes OVIFNR, GIF, VEGF and VIL-10 of ORFV-Δ119-LacZ deletion virus were slightly but not significantly lower after 24 hr compared with the wtORF-SHZ1 virus. In vivo experiments showed that 2-month-old lambs inoculated with ORFV-Δ119-LacZ deletion virus exhibited a similar total clinical score compared with those inoculated with wtORF-SHZ1 virus. Based on these results, we conclude that deletion of the ORF119 gene has no significant effect on ORFV replication and virulence.
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21
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Xie K, Fu Q, He Y, Kim J, Goh SJ, Nam E, Qiao GG, Webley PA. Synthesis of well dispersed polymer grafted metal–organic framework nanoparticles. Chem Commun (Camb) 2015; 51:15566-9. [DOI: 10.1039/c5cc06694h] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We prepared novel polymer grafted MOF nanoparticles for the first time with excellent water dispersity and significantly enhanced catalytic effect.
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Affiliation(s)
- K. Xie
- Department of Chemical and Biomolecular Engineering
- The University of Melbourne
- Parkville
- Australia
| | - Q. Fu
- Department of Chemical and Biomolecular Engineering
- The University of Melbourne
- Parkville
- Australia
| | - Y. He
- Department of Chemical and Biomolecular Engineering
- The University of Melbourne
- Parkville
- Australia
| | - J. Kim
- Department of Chemical and Biomolecular Engineering
- The University of Melbourne
- Parkville
- Australia
| | - S. J. Goh
- Department of Chemical and Biomolecular Engineering
- The University of Melbourne
- Parkville
- Australia
| | - E. Nam
- Department of Chemical and Biomolecular Engineering
- The University of Melbourne
- Parkville
- Australia
| | - G. G. Qiao
- Department of Chemical and Biomolecular Engineering
- The University of Melbourne
- Parkville
- Australia
| | - P. A. Webley
- Department of Chemical and Biomolecular Engineering
- The University of Melbourne
- Parkville
- Australia
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22
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He Z, Meng Q, Qiao J, Peng Y, Xie K, Liu Y, Cai X, Zhang J, Chen C. Mixed Nipple Infections Caused by Variant of BPV3 and a Putative New Subtype of BPV in Cattle. Transbound Emerg Dis 2014; 63:e140-3. [PMID: 24894388 DOI: 10.1111/tbed.12238] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2013] [Indexed: 11/30/2022]
Abstract
Bovine papilloma is a chronic and proliferative skin and mucosal wart caused by Bovine papillomavirus (BPV). In June, 2013, a leaf-and flat-shaped wart disease was observed on the nipple skins in a cattle farm in Xinjiang. To diagnose the disease, we collected the diseased skins for pathological biopsy and DNA analysis by PCR amplification using a pair of degenerate primers FAP59 and FAP64. Sequencing and phylogenetic analysis showed that the infection was caused by a variant of BPV3 and putatively a new subtype of BPV (BPV/CHI-SW1, belonging to the Xi papillomavirus genus). This is the first report of mixed infection caused by variant of BPV3 and BPV (putatively new subtype) in China, and would be of importance for the molecular epidemiological study of the disease.
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Affiliation(s)
- Z He
- College of Animal Science and Technology, Shihezi University, Shihezi, China
| | - Q Meng
- College of Animal Science and Technology, Shihezi University, Shihezi, China
| | - J Qiao
- College of Animal Science and Technology, Shihezi University, Shihezi, China
| | - Y Peng
- College of Animal Science and Technology, Shihezi University, Shihezi, China
| | - K Xie
- College of Animal Science and Technology, Shihezi University, Shihezi, China
| | - Y Liu
- College of Animal Science and Technology, Shihezi University, Shihezi, China
| | - X Cai
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - J Zhang
- Veterinary Station of Shawan County, Xinjiang, China
| | - C Chen
- College of Animal Science and Technology, Shihezi University, Shihezi, China
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23
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Li D, Wei X, Xie K, Chen K, Li J, Fang J. A novel decoy receptor fusion protein for FGF-2 potently inhibits tumour growth. Br J Cancer 2014; 111:68-77. [PMID: 24874473 PMCID: PMC4090743 DOI: 10.1038/bjc.2014.282] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2014] [Revised: 04/29/2014] [Accepted: 04/30/2014] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND Antiangiogenic therapies have been proven effective in cancer treatment. Fibroblast growth factor-2 (FGF-2) has been functionally implicated in tumour angiogenesis and is an important target of antiangiogenic therapies. The aim of this work was to develop a novel FGF-2 inhibitor for cancer therapy. METHODS Eleven fusion proteins were developed by fusing various truncated extracellular regions of FGFR1 with the Fc region of IgG1. The optimal decoy receptor fusion protein with the highest binding affinity for FGF-2 was identified by an FGF-2-binding assay and its potential antitumour effects were investigated. RESULTS We obtained a soluble decoy receptor fusion protein with the highest binding activity for FGF-2, named FGF-Trap. Fibroblast growth factor-Trap significantly abolished FGF-2-stimulated activation of FGF signalling as demonstrated by its suppression of FGF-2-mediated phosphorylation of Erk1/2 and Akt, upregulation of cyclins D1 and E and the increase in mRNA levels of vascular endothelial growth factor R1 and R2 (VEGFR1 and VEGFR2). Furthermore, FGF-Trap effectively suppressed FGF-2-induced proliferation and migration of human umbilical vein endothelial cells (HUVECs) in vitro. Most importantly, FGF-Trap potently inhibited tumour growth and angiogenesis in Caki-1 and A549 xenograft models in vivo. CONCLUSIONS Fibroblast growth factor-Trap potently inhibits tumour growth by blocking FGF-2 signalling pathways and could be an effective therapeutic agent for cancer patients.
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Affiliation(s)
- D Li
- School of Life Sciences and Technology, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - X Wei
- School of Life Sciences and Technology, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - K Xie
- School of Life Sciences and Technology, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - K Chen
- School of Life Sciences and Technology, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - J Li
- School of Life Sciences and Technology, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - J Fang
- School of Life Sciences and Technology, Tongji University, 1239 Siping Road, Shanghai 200092, China
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24
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Xue Y, Wu G, Liao Y, Xiao G, Ma X, Zou X, Zhang G, Xiao R, Wang X, Liu Q, Long D, Yang J, Xu H, Liu F, Liu M, Xie K, Huang R. GOLPH3 is a novel marker of poor prognosis and a potential therapeutic target in human renal cell carcinoma. Br J Cancer 2014; 110:2250-60. [PMID: 24595000 PMCID: PMC4007226 DOI: 10.1038/bjc.2014.124] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [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: 10/22/2013] [Revised: 01/16/2014] [Accepted: 02/11/2014] [Indexed: 01/03/2023] Open
Abstract
Background: Golgi phosphoprotein 3 (GOLPH3) has been reported to be involved in the development of several human cancers. The present study was conducted to investigate the expression of GOLPH3 and its prognostic significance in renal cell carcinoma (RCC). Meanwhile, the function of GOLPH3 in human RCC was further investigated in cell culture models. Methods: Expression of GOLPH3 was examined in 43 fresh RCC tissues and paired adjacent normal renal tissues by real-time quantitative PCR and western blotting. Immunohistochemistry for GOLPH3 was performed on additional 218 RCC tissues. The clinical significance of GOLPH3 expression was analysed. Downregulation of GOLPH3 was performed using small-interfering RNA (siRNA) in Caki-1 and 786-O cells with high abundance of GOLPH3, and the effects of GOLPH3 silencing on cell proliferation, migration, invasion in vitro, and tumour growth in vivo were evaluated. Results: Expression of GOLPH3 was upregulated in the majority of the RCC clinical tissue specimens at both mRNA and protein levels. Clinicopathological analysis showed that GOLPH3 expression was significantly correlated with T stage (P<0.001), lymph-node status (P=0.003), distant metastasis (P<0.001), tumour-node-metastasis (TNM) stage (P<0.001), and Fuhman grade (P=0.001). Expression of GOLPH3 was inversely correlated with both overall and recurrence-free survival of RCC patients. Multivariate analysis showed that GOLPH3 expression was an independent prognostic indicator for patient's survival. Knockdown of the GOLPH3 expression reduced cell proliferation, anchorage-independent growth, migration, invasion, and tumour growth in xenograft model mice. Conclusions: These results suggest that GOLPH3 expression is likely to have important roles in RCC development and progression, and that GOLPH3 is a prognostic biomarker and a promising therapeutic target for RCC.
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Affiliation(s)
- Y Xue
- Department of Urology, First Affiliated Hospital of Gannan Medical University, No. 23, Qing Nian Road, Ganzhou 341000, People's Republic of China
| | - G Wu
- Department of Urology, First Affiliated Hospital of Gannan Medical University, No. 23, Qing Nian Road, Ganzhou 341000, People's Republic of China
| | - Y Liao
- Department of Urology, First Affiliated Hospital of Gannan Medical University, No. 23, Qing Nian Road, Ganzhou 341000, People's Republic of China
| | - G Xiao
- Department of Graduate School, Medical College of Nanchang University, Nanchang, People's Republic of China
| | - X Ma
- Department of Urology, PLA General Hospital, Beijing, People's Republic of China
| | - X Zou
- Department of Urology, First Affiliated Hospital of Gannan Medical University, No. 23, Qing Nian Road, Ganzhou 341000, People's Republic of China
| | - G Zhang
- Department of Urology, First Affiliated Hospital of Gannan Medical University, No. 23, Qing Nian Road, Ganzhou 341000, People's Republic of China
| | - R Xiao
- Department of Urology, First Affiliated Hospital of Gannan Medical University, No. 23, Qing Nian Road, Ganzhou 341000, People's Republic of China
| | - X Wang
- Department of Urology, First Affiliated Hospital of Gannan Medical University, No. 23, Qing Nian Road, Ganzhou 341000, People's Republic of China
| | - Q Liu
- Department of Urology, First Affiliated Hospital of Gannan Medical University, No. 23, Qing Nian Road, Ganzhou 341000, People's Republic of China
| | - D Long
- Department of Urology, First Affiliated Hospital of Gannan Medical University, No. 23, Qing Nian Road, Ganzhou 341000, People's Republic of China
| | - J Yang
- Department of Urology, First Affiliated Hospital of Gannan Medical University, No. 23, Qing Nian Road, Ganzhou 341000, People's Republic of China
| | - H Xu
- Department of Urology, First Affiliated Hospital of Gannan Medical University, No. 23, Qing Nian Road, Ganzhou 341000, People's Republic of China
| | - F Liu
- Department of Urology, First Affiliated Hospital of Gannan Medical University, No. 23, Qing Nian Road, Ganzhou 341000, People's Republic of China
| | - M Liu
- Department of Urology, First Affiliated Hospital of Gannan Medical University, No. 23, Qing Nian Road, Ganzhou 341000, People's Republic of China
| | - K Xie
- Department of Urology, First Affiliated Hospital of Gannan Medical University, No. 23, Qing Nian Road, Ganzhou 341000, People's Republic of China
| | - R Huang
- Department of Graduate School, Medical College of Nanchang University, Nanchang, People's Republic of China
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Suo T, Li YL, Zhao F, Deng Q, Xie K. Influence of short time annealing on strain hardening rate and flow stress of ultrafine grained material processed by severe plastic deformation. ACTA ACUST UNITED AC 2013. [DOI: 10.1179/143307511x12858956847075] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Affiliation(s)
- T Suo
- School of AeronauticsNorthwestern Polytechnical University, Xi’an 710072, China
| | - Y L Li
- School of AeronauticsNorthwestern Polytechnical University, Xi’an 710072, China
| | - F Zhao
- School of AeronauticsNorthwestern Polytechnical University, Xi’an 710072, China
| | - Q Deng
- School of AeronauticsNorthwestern Polytechnical University, Xi’an 710072, China
| | - K Xie
- School of AeronauticsNorthwestern Polytechnical University, Xi’an 710072, China
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Yang T, Peng H, Wang J, Yang J, Nice EC, Xie K, Huang C. Prognostic and diagnostic significance of annexin A2 in colorectal cancer. Colorectal Dis 2013; 15:e373-81. [PMID: 23489866 DOI: 10.1111/codi.12207] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [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: 11/13/2012] [Accepted: 01/13/2013] [Indexed: 02/05/2023]
Abstract
AIM Annexin A2 (ANXA2) is known to be a tumourigenic molecule and is highly expressed in colorectal cancer (CRC). Its diagnostic and prognostic value is not fully understood. This study was designed to investigate the relationship between ANXA2 expression, clinicopathological characteristics, tumour recurrence and survival. METHOD Immunohistochemical staining was used to evaluate ANXA2 expression in 150 matched samples from patients with CRC. Overall survival and recurrence were determined by Kaplan-Meier analysis. The Cox proportional hazards model was used to determine independent factors contributing to survival and recurrence. Receiver operating characteristic (ROC) curve and liner correlation analysis were used to estimate the sensitivity and specificity of ANXA2 expression for clinical diagnosis. RESULTS ANXA2 was found to be strongly expressed in poorly differentiated tumours (P < 0.001), late stage (P = 0.020) and lymph node positivity (P = 0.002). ANXA2 expression was significantly related to recurrence (P < 0.001) and survival (P = 0.002). The Cox proportional hazards model indicated that ANXA2 expression [P < 0.001, hazard ratio (HR) = 1.366, 95% CI 1.232-1.515] and tumour location (P = 0.039, HR = 1.891, 95% CI 1.034-3.456) were independent factors in predicting overall survival while ANXA2 expression (P < 0.001, HR = 1.445, 95% CI 1.222-1.709) were independent factors predicting recurrence. Receiver operating characteristic (ROC) (AUC = 0.768, 95% CI = 0.642-0.894) and liner correlation analysis suggested that ANXA2 was suitable for the clinical diagnosis of CRC. CONCLUSION These results indicate that ANXA2 is a biomarker with diagnostic and prognostic potential for patients with CRC.
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Affiliation(s)
- T Yang
- The State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
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Xu SB, Zhu YP, Zhou W, Xie K, Mou YP. Patients get more long-term benefit from central pancreatectomy than distal resection: a meta-analysis. Eur J Surg Oncol 2013; 39:567-74. [PMID: 23465182 DOI: 10.1016/j.ejso.2013.02.003] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2012] [Revised: 01/16/2013] [Accepted: 02/01/2013] [Indexed: 01/18/2023] Open
Abstract
AIMS Central pancreatectomy (CP) protects more normal pancreatic parenchyma than distal pancreatectomy (DP), but the safety, feasibility and long-term benefit of CP are inconclusive. This meta-analysis aims to ascertain the relative merits of CP. METHODS A systematic literature research was performed to identify comparative studies on CP and DP. Perioperative and long-term outcomes constituted the end points. Pooled risk ratios (RR) and weighted mean differences (WMD) with 95% confidence intervals (95% CI) were calculated using either fixed effects or random effects model. RESULTS Nine studies with 735 patients were included in this meta-analysis. Although CP cost more operative time than DP, the two groups had no significant differences in the volume of intraoperative blood loss, rate of intraoperative blood transfusion and length of postoperative hospital stay. According to the postoperative outcomes, although the CP group had higher overall complication rate (Fixed effects model; RR: 1.30; 95% CI: 1.05-1.62; P < 0.05) as well as overall pancreatic fistula rate (Fixed effects model; RR: 1.58; 95% CI: 1.20-2.08; P < 0.05), the two groups did not differ significantly in the fateful surgical complications such as clinically significant pancreatic fistula (Grades B and C), postoperative bleeding, reoperation and intra-abdominal effusion/abscess. Furthermore, the perioperative mortality rate was comparable between the two groups. During the follow-up period, the patients after DP were more likely to suffer pancreatic exocrine insufficiency (Fixed effects model; RR: 0.53; 95% CI: 0.32-0.86; P < 0.05) and endocrine impairment (Fixed effects model; RR: 0.19; 95% CI: 0.11-0.33; P < 0.05). CONCLUSION CP was still an acceptable and feasible procedure, especially when considering the postoperative pancreatic function preservation ability by CP.
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Affiliation(s)
- S B Xu
- Department of General Surgery, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, 3 East Qingchun Road, Hangzhou, Zhejiang Province, China.
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Xie K, Huang S, Dong Z, Fidler I. Cytokine-induced apoptosis in transformed murine fibroblasts involves synthesis of endogenous nitric-oxide. Int J Oncol 2012; 3:1043-8. [PMID: 21573470 DOI: 10.3892/ijo.3.6.1043] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
The purpose of this study was to determine whether the synthesis of endogenous nitric oxide (NO) is involved in the apoptosis of murine L929 transformed fibroblasts. L929 parental cells and L929 cells selected for resistance to tumor necrosis factor (TNF-alpha) were incubated in vitro with various concentrations of TNF-alpha, interleukin-1, and lipopolysaccharide (LPS) in the presence or absence of mouse interferon-gamma (IFN-gamma). The combination of subthreshold concentrations of IFN-gamma with the cytokines or LPS produced significant cell death within 48 h incubation. This cell death was associated with the induction of high levels of NO. Both cell death and NO production were significantly inhibited by the addition of N(G)-methyl-L-arginine (NMA), a specific inhibitor of nitric oxide synthase. The synergistic cytotoxicity was associated with extensive internucleosomal DNA fragmentation. NMA also inhibited this process. These data demonstrate the involvement of endogenous NO in cytokine-induced apoptosis of transformed cells.
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Affiliation(s)
- K Xie
- UNIV TEXAS,MD ANDERSON CANC CTR,DEPT CELL BIOL,HMB 173,1515 HOLCOMBE BLVD,HOUSTON,TX 77030
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Xie K, Jia L, Xu D, Guo H, Xie X, Huang Y, Chen X, Bao W, Dai G, Wang J. Simultaneous Determination of Amoxicillin and Ampicillin in Eggs by Reversed-Phase High-Performance Liquid Chromatography with Fluorescence Detection using Pre-Column Derivatization. J Chromatogr Sci 2012; 50:620-4. [DOI: 10.1093/chromsci/bms052] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Xiang HF, Li ZD, Xie K, Jiang JZ, Chen JJ, Lian PC, Wu JS, Yu Y, Wang HH. Graphene sheets as anode materials for Li-ion batteries: preparation, structure, electrochemical properties and mechanism for lithium storage. RSC Adv 2012. [DOI: 10.1039/c2ra20549a] [Citation(s) in RCA: 139] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
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Furnari F, Fenton T, Nathanson D, de Alberquerque CP, Kuga D, Wanami A, Dang J, Yang H, Tanaka K, Gao L, Oba-Shinjo S, Uno M, Inda MDM, Bachoo R, James CD, DePinho R, Vandenberg S, Zhou H, Marie S, Mischel P, Cavenee W, Szerlip N, Pedraza A, Huse J, Mikkelsen T, Brennan C, Szerlip N, Castellani RJ, Ivanova S, Gerzanich VV, Simard JM, Ito M, See W, Mukherjee J, Ohba S, Tan IL, Pieper RO, Lukiw WJ, Culicchia F, Pogue A, Bhattacharjee S, Zhao Y, Proescholdt MA, Merrill M, Storr EM, Lohmeier A, Brawanski A, Abraham S, Jensen R, Khatua S, Gopal U, Du J, He F, Golub T, Isaacs JS, Dietrich J, Kalogirou-Valtis Y, Ly I, Scadden D, Proschel C, Mayer-Proschel M, Rempel SA, Schultz CR, Golembieski W, Brodie C, Mathew LK, Skuli N, Mucaj V, Imtiyaz HZ, Venneti S, Lal P, Zhang Z, Davuluri RV, Koch C, Evans S, Simon MC, Ranganathan P, Clark P, Salamat S, Kuo JS, Kalejta RF, Bhattacharjee B, Renzette N, Moser RP, Kowalik TF, McFarland BC, Ma JY, Langford CP, Gillespie GY, Yu H, Zheng Y, Nozell SE, Huszar D, Benveniste EN, Lawrence JE, Cook NJ, Rovin RA, Winn RJ, Godlewski JA, Ogawa D, Bronisz A, Lawler S, Chiocca EA, Lee SX, Wong ET, Swanson KD, Liu KW, Feng H, Bachoo R, Kazlauskas A, Smith EM, Symes K, Hamilton RL, Nagane M, Nishikawa R, Hu B, Cheng SY, Silber J, Jacobsen A, Ozawa T, Harinath G, Brennan CW, Holland EC, Sander C, Huse JT, Sengupta R, Dubuc A, Ward S, Yang L, Northcott P, Kroll K, Taylor M, Wechsler-Reya R, Rubin J, Chu WT, Lee HT, Huang FJ, Aldape K, Yao J, Steeg PS, Lu Z, Xie K, Huang S, Sim H, Agudelo-Garcia PA, Hu B, Viapiano MS, Hu B, Agudelo-Garcia PA, Saldivar J, Sim H, Dolan C, Mora M, Nuovo G, Cole S, Viapiano MS, Stegh AH, Ryu MJ, Liu Y, Du J, Zhong X, Marwaha S, Li H, Wang J, Salamat S, Chang Q, Zhang J, Ng HK, Yang L, Poon WS, Zhou L, Pang JC, Chan A, Didier S, Kwiatkowska A, Ennis M, Fortin S, Rushing E, Eschbacher J, Tran N, Symons M, Roldan G, McIntyre JB, Easaw J, Magliocco A, Wykosky J, Cavenee W, Furnari F, Lu D, Mreich E, Chung S, Teo C, Wheeler H, McDonald KL, Lawn S, Forsyth P, Sonabend AM, Lei L, Kennedy B, Soderquist C, Guarnieri P, Leung R, Yun J, Sisti J, Castelli M, Bruce S, Bruce R, Ludwig T, Rosenfeld S, Bruce JN, Canoll P, Lamszus K, Schulte A, Gunther HS, Riethdorf S, Phillips HS, Westphal M, Siegal T, Zrihan D, Granit A, Lavon I, Singh M, Chandra J, Ogawa D, Nakashima H, Godlewski J, Chiocca AE, Kapoor GS, Poptani H, Ittyerah R, O'Rourke DM, Sadraei NH, Burgett M, Ahluwalia M, Tipps R, Khosla D, Weil R, Nowacki A, Prayson R, Shi T, Gladson C, Moeckel S, Meyer K, Bosserhoff A, Spang R, Leukel P, Vollmann A, Jachnick B, Stangl C, Proescholdt M, Bogdahn U, Hau P, Kaur G, Sun M, Kaur R, Bloch O, Jian B, Parsa AT, Hossain A, Shinojima N, Gumin J, Feng G, Lang FF, Li L, Yang CR, Chakraborty S, Hatanpaa K, Chauncey S, Jiwani A, Habib A, Nguyen T, Nakashima H, Chiocca EA, Munson J, Machaidze R, Kaluzova M, Bellamkonda R, Hadjipanayis CG, Zhang Y, McFarland B, Bredel M, Benveniste EN, Lee SH, Zerrouqi A, Khwaja F, Devi NS, Van Meir EG, Haseley A, Boone S, Wojton J, Yu L, Kaur B, Wojton JA, Naduparambil J, Denton N, Chakravarti A, Kaur B, Conrad CA, Wang X, Sheng X, Nilsson C, Marshall AG, Emmett MR, Hu Y, Mark L, Zhou YHZ, Dhruv H, McDonough W, Tran N, Armstrong B, Tuncali S, Eschbacher J, Kislin K, Berens M, Plas D, Gallo C, Stringer K, Kendler A, McPherson C, Castelli MA, Ellis JA, Assanah M, Bruce JN, Canoll P, Ogden A, Liang J, Piao Y, deGroot JF, Gordon N, Patel D, Chakravarti A, Palanichamy K, Hervey-Jumper S, Wang A, He X, Zhu T, Heth J, Muraszko K, Fan X, Nakashima H, Nguyen T, Chiocca EA, Liu WM, Huang P, Rani S, Stettner MR, Jerry S, Dai Q, Kappes J, Tipps R, Gladson CL, Chakravarty D, Pedraza A, Koul D, Alfred Yung WK, Brennan CW, Jensen SA, Luciano J, Calvert A, Nagpal V, Stegh A, Kang SH, Yu MO, Lee MG, Chi SG, Chung YG, Cooper MK, Valadez JG, Grover VK, Kouri FM, Chin L, Stegh AH, Ahluwalia MS, Khosla D, Weil RJ, McGraw M, Huang P, Prayson R, Nowacki A, Barnett GH, Gladson C, Kang C, Zou J, Lan F, Yue X, Shi Z, Zhang K, Han L, Pu P, Seaman BF, Tran ND, McDonough W, Dhruv H, Kislin K, Berens M, Battiste JD, Sirasanagandla S, Maher EA, Bachoo R, Sugiarto S, Persson A, Munoz EG, Waldhuber M, Vandenberg S, Stallcup W, Philips J, Berger MS, Bergers G, Weiss WA, Petritsch C. CELL BIOLOGY AND SIGNALING. Neuro Oncol 2011; 13:iii10-iii25. [PMCID: PMC3199169 DOI: 10.1093/neuonc/nor148] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2023] Open
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Chen T, Liu W, Chao X, Qu Y, Zhang L, Luo P, Xie K, Huo J, Fei Z. Neuroprotective effect of osthole against oxygen and glucose deprivation in rat cortical neurons: involvement of mitogen-activated protein kinase pathway. Neuroscience 2011; 183:203-11. [DOI: 10.1016/j.neuroscience.2011.03.038] [Citation(s) in RCA: 80] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2010] [Revised: 03/10/2011] [Accepted: 03/20/2011] [Indexed: 11/30/2022]
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Long PM, Wesley UV, Jaworski DM, Rana M, Kiehl TR, So K, Gould P, Ajewung N, Kamnasaran D, Emmett MR, Wang X, Marshall AG, Ji Y, Fokt I, Skora S, Conrad CA, Priebe W, Zhu H, Cao X, Keir S, Ali-Osman F, Lo HW, Da Fonseca CO, Arun V, Wiley JC, Kaur H, Guha A, Fenton K, Abdelwahab MG, Stafford P, Rho JM, Preul MC, Scheck AC, Brossier NM, Carroll SL, Gajadhar A, Guha A, Mukherjee J, Wolf A, Hawkins C, Guha A, Costa P, Cardoso ALC, de Almeida LP, de Lima MCP, Canoll P, Bruce J, Lavon I, Granit A, Einstein O, Ben-Hur T, Siegal T, Pang JC, Poon WS, Zhou L, Ng HK, Rovin RA, Lawrence JE, Segula JJ, Winn RJ, Patil S, Burzynski SR, Mrowczynski E, Grela K, Cheng S, Liu K, Feng H, Bacho R, Kazlauskas A, Smith EM, Symes K, Hu B, Lee CY, Fotovati A, Dunn SE, Proescholdt MA, Storr EM, Lohmeier A, Brawanski A, Hu B, Feng H, Jarzynka MJ, Liu K, Ravichandran KS, Vuori K, Tang C, Nshikawa R, Johns TG, Furnari FB, Cavenee WK, Cheng S, Zhong J, O'Neill GM, Deleyrolle LP, Rahman M, Dunbar EM, Caldeira MA, Reynolds BA, Liu X, Yacyshyn S, Dasgupta B, Han X, Yang X, Wheeler CG, Filippova N, Langford CP, Ding Q, Fathallah HM, Gillespie GY, Nabors LB, Davidson TB, Gortalum F, Ji L, Engell K, Sposto R, Asgharzadeh S, Erdreich-Epstein A, Lawn SO, Weiss S, Senger D, Forsyth P, Latha K, Chumbalkar V, Li M, Gururaj A, Hwang Y, Maywald R, Dakeng S, Dao L, Baggerly K, Sawaya R, Aldape K, Cavenee W, Furnari F, Bogler O, Hwang Y, Chumbalkar V, Latha K, Bogler O, Gururaj A, Bogler O, Chumbalkar V, Arumugam J, Dao L, Baggerly K, Priebe W, Bogler O, Sim H, Pineda CA, Pan Y, Hu B, Viapiano MS, Van Schaick JA, Akagi K, Burkett S, DiFabio C, Tuskan R, Walrath J, Reilly K, Dai B, Jing Z, Kang SH, Li D, Xie K, Huang S, Gong X, Vuong Y, Bota DA, Stegh AH, Furnari F, Inda MDM, Bonavia R, Mukasa A, Narita Y, Sah D, Vandenberg S, Brennan C, Johns T, Bachoo R, Hadwiger P, Tan P, Tan P, DePinho R, Cavenee W, Kusne Y, Meerson A, Rushing EJ, Yang W, Aldape K, McDonough W, Kislin K, Loftus JC, Berens M, Lu Z, Ghosh S, Verma A, Zhou H, Chin S, Bruggers C, Kestle J, Khatua S, Broekman ML, Maas NS, Skog J, Breakefield XO, Sena-Esteves M, de Vrij J, Lamfers M, Maas N, Dirven C, Esteves M, Broekman M, Chidambaram A, Dumur CI, Graf M, Vanmeter TE, Fillmore HL, Broaddus WC, Silber J, Ozawa T, Kastenhuber E, Djaballah H, Holland EC, Huse JT, Wolf A, Agnihotri S, Munoz D, Hawkins C, Guha A, Han JE, Albesiano E, Pradilla G, Lim M, Alshami J, Sabau C, Seyed Sadr M, Anan M, Seyed Sadr E, Siu V, Del Maestro R, Trinh G, Le P, Petrecca K, Sonabend AM, Soderquist C, Lei L, Guarnieri P, Leung R, Yun J, Sisti J, Castelli M, Bruce S, Bruce R, Ludwig T, Rosenfeld S, Bruce JN, Canoll P, Phillips JJ, Huillard E, Polley MY, Rosen SD, Rowitch DH, Werb Z, Sarkar C, Jha P, Pathak P, Suri V, Sharma MC, Chattopadhyay P, Chosdol K, Suri A, Gupta D, Mahapatra AK, Kapoor GS, Zhan Y, Boockvar JA, O'Rourke DM, Kwatra MM, Kim JW, Park CK, Han JH, Park SH, Kim SK, Jung HW, Narayanan R, Levin BS, Maeder ML, Joung JK, Nutt CL, Louis DN, Dudley A, Jayaram P, Pei Z, Shi X, Laterra J, Watkins PA, Mawrin C, Rempel SA, McClung HM, McFarland BC, Nozell SE, Huszar D, Benveniste EN, Burton T, Eisenstat DD, Gibson SB, Lukiw WJ, Cui JG, Li YY, Zhao Y, Culicchia F, See W, Pieper R, Luchman A, Stechishin O, Nguyen S, Kelly J, Blough M, Cairncross G, Weiss S, Shah SR, Mohyeldin A, Adams H, Garzon-Muvdi T, Aprhys C, Quinones-Hinojosa A, Weeks AC, Restrepo A, Arun V, Ivanchuk S, Smith C, Rutka JT, Sengupta R, Yang L, Burbassi S, Zhang B, Markant SL, Yang ZJ, Meucci O, Wechsler-Reya RJ, Rubin JB, Wykosky J, Mukasa A, Chin L, Cavenee W, Furnari F, Auvergne RM, Sim FJ, Wang S, Chandler-Militello D, Burch J, Li X, Bennet A, Mohile N, Pilcher W, Walter K, Johnson M, Achanta P, Quinones-Hinojosa A, Natesan S, Goldman SA, Beauchamp AS, Gibo DM, Wykosky J, Debinski W, Jiang H, Martin V, Gomez-Manzano C, Johnson DG, Alonso M, White EJ, Xu J, McDonnell T, Shinojima N, Fueyo J, Sandhya Rani MR, Huang P, Prayson R, Hedayat H, Sloan AE, Novacki A, Ahluwalia MS, Tipps R, Gladson CL, Liu JL, Mao Z, Xu J, Fueyo J, Yung WKA, Bhat K, Salazar K, Balasubramaniyan V, Vaillant B, Hollingsworth F, Gumin J, Diefes K, Patel D, Lang F, Colman H, Aldape K, Parsyan A, Shahbazian D, Alain T, Martineau Y, Petroulakis E, Larsson O, Gkogkas C, Topisirovic I, Mathonnet G, Tettweiler G, Hellen C, Pestova T, Svitkin Y, Sonenberg N, Zerrouqi A, Pyrzynska B, Van Meir E, Twitty GB, Nozell SE, Hong SW, Benveniste EN, Lee HK, Finniss S, Xiang C, Cazacu S, Brodie C, Ginn KF, Wise A, Farassati F, Nozell SE, Hong SW, Twitty GB, McFarland BC, Benveniste EN, Brown C, Barish M, deCarvalho AC, Hasselbach L, Nelson K, Lemke N, Schultz L, Mikkelsen T, Onvani S, Kongkham P, Smith CA, Rutka JT, Bier A, Finniss S, Hershkovitz H, Kahana S, Xiang C, Cazacu S, Decarvalho A, Brodie C, Massey SC, Swanson KR, Canoll P. Cell Biology and Signaling. Neuro Oncol 2010. [DOI: 10.1093/neuonc/noq116.s2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Lin H, Xie K, Mahendran B, Bagley D, Leung K, Liss S, Liao B. Factors affecting sludge cake formation in a submerged anaerobic membrane bioreactor. J Memb Sci 2010. [DOI: 10.1016/j.memsci.2010.05.062] [Citation(s) in RCA: 83] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Zhao X, Zhang C, Zhu Z, Yu L, Xie K. Time-dependent electrophysiologic changes of sciatic-tibial nerve in hens induced by tri-ortho-cresyl phosphate. Toxicol Lett 2010. [DOI: 10.1016/j.toxlet.2010.03.763] [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: 11/26/2022]
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Xie K, Lin HJ, Mahendran B, Bagley DM, Leung KT, Liss SN, Liao BQ. Performance and fouling characteristics of a submerged anaerobic membrane bioreactor for kraft evaporator condensate treatment. Environ Technol 2010; 31:511-521. [PMID: 20480826 DOI: 10.1080/09593330903527898] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Submerged anaerobic membrane bioreactor (SAnMBR) technology was studied for kraft evaporator condensate treatment at 37 +/- 1 degrees C over a period of 9 months. Under tested organic loading rates of 1-24 kg COD/m3/day, a chemical oxygen demand (COD) removal efficiency of 93-99% was achieved with a methane production rate of 0.35 +/- 0.05 L methane/g COD removed and a methane content of 80-90% in produced biogas. Bubbling of recycled biogas was effective for in-situ membrane cleaning, depending on the biogas sparging rate used. The membrane critical flux increased and the membrane fouling rate decreased with an increase in the biogas sparging rate. The scanning electron microscopy images showed membrane pore clogging was not significant and sludge cake formation on the membrane surface was the dominant mechanism of membrane fouling. The results suggest that the SAnMBR is a promising technology for energy recovery from kraft evaporator condensate.
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Affiliation(s)
- K Xie
- Department of Chemical Engineering, Lakehead University, 955 Oliver Road, Thunder Bay, Ontario, P7B 5E1, Canada
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Liao BQ, Xie K, Lin HJ, Bertoldo D. Treatment of kraft evaporator condensate using a thermophilic submerged anaerobic membrane bioreactor. Water Sci Technol 2010; 61:2177-2183. [PMID: 20418612 DOI: 10.2166/wst.2010.123] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
The feasibility of using a thermophilic submerged anaerobic membrane bioreactor (SAnMBR) for kraft evaporator condensate treatment was studied at 55+/-1 degrees C over 6.5 months. Under tested organic loading rate of 1-7 kg COD/m(3) day, a soluble COD removal efficiency of 85-97% was obtained. The methane production rate was 0.35+/-0.1 L methane/g COD and the produced biogas was of excellent fuel quality with 80-90% methane. A higher membrane fouling rate was related to the presence of a larger portion of fine colloidal particles (1-10 mum). The thermophilic SAnMBR was sensitive to the presence of toxic compounds in feed and unexpected pH probe failure (leading to a higher pH). Feed toxic shock caused sludge deflocculation and thus deteriorated membrane performance. Operating the reactor as a conventional anaerobic reactor to waste some of the fine flocs in treated effluent during the start-up process was an effective strategy to reduce membrane fouling. The experimental results from this study indicate that treatment of kraft evaporator condensate is feasible in terms of COD removal and biogas production using thermophilic SAnMBRs but pre-treatment may be needed to remove toxic sulfur compounds and membrane fouling caused by the large portion of fine particles may be a challenge.
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Affiliation(s)
- B Q Liao
- Department of Chemical Engineering, Lakehead University, 955 Oliver Road, Thunder Bay, ON P7B 5E1, Canada.
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Lin HJ, Xie K, Mahendran B, Bagley DM, Leung KT, Liss SN, Liao BQ. Sludge properties and their effects on membrane fouling in submerged anaerobic membrane bioreactors (SAnMBRs). Water Res 2009; 43:3827-3837. [PMID: 19555989 DOI: 10.1016/j.watres.2009.05.025] [Citation(s) in RCA: 170] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2009] [Revised: 05/11/2009] [Accepted: 05/14/2009] [Indexed: 05/28/2023]
Abstract
Two submerged anaerobic membrane bioreactors (SAnMBRs) (thermophilic vs. mesophilic) were operated for a period of 3.5 months with kraft evaporator condensate at a feed chemical oxygen demand of 10,000 mg/L. The results show that the filtration behavior of the two systems was significantly different. The filtration resistance in the thermophilic SAnMBR was about 5-10 times higher than that of the mesophilic system when operated under similar hydrodynamic conditions. Comparison of sludge properties and cake layer structure from the two systems was made to elucidate major factors governing the different filtration characteristics. There were more soluble microbial products (SMP) and biopolymer clusters (BPC) produced and a larger portion of fine flocs (<15 microm) in the thermophilic SAnMBR. Analysis of bound extracellular polymeric substances (EPS) showed that the thermophilic sludge had a higher protein/polysaccharide ratio in EPS, as compared to that in the mesophilic sludge. A series of analyses, including Fourier transform infrared (FTIR) spectroscopy, energy dispersive X-ray spectroscopy (EDX), confocal laser scanning microscopy (CLSM), scanning electron microscopy (SEM), atomic force microscopy (AFM) and particle size analyzer showed that the cake layer formed in the thermophilic SAnMBR contained higher levels of both organic and inorganic foulants, smaller particle sizes, and especially, a denser and more compact sludge cake structure. These results indicate that floc size, SMP, BPC, bound EPS as well as cake layer structure are the major factors governing membrane fouling in SAnMBR systems.
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Affiliation(s)
- H J Lin
- Department of Chemical Engineering, Lakehead University, 955 Oliver Road, Thunder Bay, Ontario, Canada
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Wang G, Dong C, Sun YA, Xie K, Zheng H. Characterization of Volatile Components in Dry Chrysanthemum Flowers Using Headspace--Liquid-Phase Microextraction--Gas Chromatography. J Chromatogr Sci 2008; 46:127-32. [DOI: 10.1093/chromsci/46.2.127] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Zhao ZG, Jiang L, Zhang WW, Yu CY, Zhu SS, Xie K, Tian H, Liu LL, Ikehashi H, Wan JM. Fine mapping of S31, a gene responsible for hybrid embryo-sac abortion in rice (Oryza sativa L.). Planta 2007; 226:1087-96. [PMID: 17549514 DOI: 10.1007/s00425-007-0553-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2006] [Accepted: 05/08/2007] [Indexed: 05/15/2023]
Abstract
Partial abortion of female gametes and the resulting semi-sterility of indica x japonica inter-subspecific rice hybrids have been ascribed to an allelic interaction, which can be avoided by the use of wide compatibility varieties. To further understand the genetic mechanism of hybrid sterility, we have constructed two sets of hybrids, using as male parent either the typical japonica variety Asominori, or the wide compatibility variety 02428; and as female, a set of 66 chromosome segment substitution lines in which various chromosomal segments from the indica variety IR24 have been introduced into a common genetic background of Asominori. Spikelet semi-sterility was observed in hybrid between CSSL34 and Asominori, which is known to carry the sterility gene S31 (Zhao et al. in Euphytica 151:331-337, 2006). Cytological analysis revealed that the semi-sterility of the CSSL34 x Asominori hybrid was caused primarily by partial abortion of the embryo sac at the stage of the mitosis of the functional megaspore. A population of 1,630 progeny of the three-way cross (CSSL34 x 02428) x Asominori was developed to map S31. Based on the physical location of linked molecular markers, S31 was thereby delimited to a 54-kb region on rice chromsome 5. This fragment contains eight predicted open reading frames, four of which encode known proteins and four putative proteins. These results are relevant to the map-based cloning of S31, and the development of marker-assisted transfer of non-sterility allele inducing alleles to breeding germplasm, to allow for a more efficient exploitation of heterosis in hybrid rice.
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Affiliation(s)
- Z G Zhao
- National Key Laboratory for Crop Genetics and Germplasm Enhancement, Jiangsu Plant Gene Engineering Research Center, Nanjing Agricultural University, Nanjing 210095, China
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Lin EH, Hassan M, Li Y, Zhao H, Nooka A, Xie K, Champlin R, Wu X, Li D. Elevated stem cell marker CD133 mRNA in peripheral blood predicts colon cancer recurrence. J Clin Oncol 2007. [DOI: 10.1200/jco.2007.25.18_suppl.10504] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
10504 Background: CD133 is a specific stem cell marker that enriches cancer stem cells of many tumor types including colon cancer as well as circulating endothelial progenitors (CEP). CEP is vital in postnatal angiogenesis and elevated CEP is a proven favoable prognositic marker for heart disease but a potentially poor prognostic marker for cancer. We examined whether elevated CD133 mRNA expression levels in peripheral blood mononuclear cells (PBMC) predict recurrence in colon cancer patients. Methods: We developed and validated a semi-quantitative real-time RT-PCR to quantify CD133 mRNA levels relative to GADPH mRNA. Sixty-six colon cancer patients were enrolled between February 2002 and December 2003. The protocol excluded patients with history of cardiac disease or surgery < 4 weeks from the enrollment and were followed for recurrence for a median 30 months. A central statistician performed multivariate unconditional logistics regression analysis. Results: Among the patients without recurrence, 93% had a CD133 mRNA level < 4.79, whereas 7% had a CD133 mRNA value ≥ 4.79 (p = 0.029). Among patients with a CD133 mRNA value ≥ 4.79, 85% had experienced recurrence compared to 15% of the patient who had no recurrence (p = 0.03). Elevated CD133 mRNA levels at a cut-off point ≥ 4.79 versus < 4.79 were associated with an odd ratio of 22.6 for recurrence (95% CI, 1.7–291.2; p = 0.02); in comparison, the odds ratio for recurrence was 17.2 (95% CI, 1.8–164; p = 0.01) for stage IV patients versus stage I-III patients. No other predictive variables for recurrence were identified including age, race, sex, tumor differentiation, smoking, and diabetes etc. We also observed an trend of association with elevated carcinoma embryonic antigen (CEA) levels (p = 0.03, one sided) and a decreased survival (p = 0.035, one sided) with elevated CD133 mRNA level at a cutoff point ≥ 4.79. Conclusions: Elevated CD133 mRNA levels at a cutoff ≥ 4.79 in PBMC predict colon cancer recurrence independent of stage IV disease. The current assay has certain advantages over flow cytometry for wider clinical application. CD133+ cells measured by CD133 mRNA may contain both CEP and cancer stem cells, leading to increased risks of recurrence. No significant financial relationships to disclose.
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Affiliation(s)
- E. H. Lin
- Univ of Washington/Fred Hutchinson Cancer Res Ctr, Seattle, WA; MD Anderson Cancer Center, Houston, TX
| | - M. Hassan
- Univ of Washington/Fred Hutchinson Cancer Res Ctr, Seattle, WA; MD Anderson Cancer Center, Houston, TX
| | - Y. Li
- Univ of Washington/Fred Hutchinson Cancer Res Ctr, Seattle, WA; MD Anderson Cancer Center, Houston, TX
| | - H. Zhao
- Univ of Washington/Fred Hutchinson Cancer Res Ctr, Seattle, WA; MD Anderson Cancer Center, Houston, TX
| | - A. Nooka
- Univ of Washington/Fred Hutchinson Cancer Res Ctr, Seattle, WA; MD Anderson Cancer Center, Houston, TX
| | - K. Xie
- Univ of Washington/Fred Hutchinson Cancer Res Ctr, Seattle, WA; MD Anderson Cancer Center, Houston, TX
| | - R. Champlin
- Univ of Washington/Fred Hutchinson Cancer Res Ctr, Seattle, WA; MD Anderson Cancer Center, Houston, TX
| | - X. Wu
- Univ of Washington/Fred Hutchinson Cancer Res Ctr, Seattle, WA; MD Anderson Cancer Center, Houston, TX
| | - D. Li
- Univ of Washington/Fred Hutchinson Cancer Res Ctr, Seattle, WA; MD Anderson Cancer Center, Houston, TX
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Zhang J, Jia Z, Wang L, Li Q, Xiangdong L, Xie K, Yao JC. Treatment with bevacizumab (BEV) upregulates expression of the transcription factor Sp1 and its downstream target genes in human carcinoid cells: Molecular basis of the synergistic antiangiogenic activity of bevacizumab and mithramycin A (MIT). J Clin Oncol 2007. [DOI: 10.1200/jco.2007.25.18_suppl.15031] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
15031 Background: Our previous studies show that human carcinoid cells overexpress pro-angiogenic factors, vascular endothelial growth factor A (VEGF), and transcription factor Sp1 plays a critical role in VEGF inducible and constitutive expression. However, the impact of antiangiogenic therapy on the Sp1/VEGF pathway remains unclear. Method: Groups of 10 athymic BALB/c nude mice were implanted with 1.5 million human H727 carcinoid cells. Treatment with VEGF neutralizing monoclonal antibody, BEV, MIT, or BEV + MIT was initiated once implanted tumor reached 4 mm in size. Result: Treatment with BEV, suppressed human carcinoid growth in nude mice (tumor size at week 5 1280 mm3 vs 480 mm3; p < 0.001). Gene expression analyses revealed that this treatment substantially upregulated the expression of Sp1 (7 folds) and its downstream target genes, including VEGF (5 folds) and epidermal growth factor receptor (4 folds), in tumor tissues, whereas it did not have this effect on carcinoid cells in culture. Treatment with mithramycin A, an Sp1 inhibitor, suppressed the expression of Sp1 and its downstream target genes in both cell culture and tumors growing in nude mice. Median survival of mice treated with PBS, BEV, MIT, and BEV + MIT groups were 88, 112, 121, and >160 days respectively (p < 0.001). Combined treatment with bevacizumab and mithramycin A produced synergistic tumor suppression, which was consistent with suppression of the expression of Sp1 and its downstream target genes. Conclusion: Treatment with bevacizumab may block VEGF function but activate the pathway of its expression via positive feedback. Given the fact that Sp1 is an important regulator of the expression of multiple angiogenic factors, bevacizumab-initiated upregulation of Sp1 and subsequent overexpression of its downstream target genes may affect the potential angiogenic phenotype and effectiveness of antiangiogenic strategies for human carcinoid. No significant financial relationships to disclose.
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Affiliation(s)
- J. Zhang
- M. D. Anderson Cancer Center, Houston, TX
| | - Z. Jia
- M. D. Anderson Cancer Center, Houston, TX
| | - L. Wang
- M. D. Anderson Cancer Center, Houston, TX
| | - Q. Li
- M. D. Anderson Cancer Center, Houston, TX
| | | | - K. Xie
- M. D. Anderson Cancer Center, Houston, TX
| | - J. C. Yao
- M. D. Anderson Cancer Center, Houston, TX
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Xie K, Jia Z, Zhang J, Wang L, Li Q, Le X, Yao JC. Preferential inhibition of Sp1 expression in growing tumors by mithramycin-A (MIT) directly correlates with its potent antiangiogenic effects in human carcinoid xenograft model. J Clin Oncol 2007. [DOI: 10.1200/jco.2007.25.18_suppl.15041] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
15041 Background: MIT, also known as aureolic acid and plicamycin (Mithracin), is an aureolic acid-type polyketide produced by various soil bacteria of the genus Streptomyces. Previous studies have shown that MIT exhibits antitumor activity. In the present study, we examine the antiangiogenic effect of MIT and its underlying mechanisms. Methods: Cohorts of 10 athymic BALB/c nude mice were implanted with 1.5 million human H727 carcinoid cells. Mice were treated with subcutaneous or intraperitoneal 0.2 mg/kg of mithramycin twice weekly once implanted tumor reached 4 mm in size. Results: Both subcutaneous and intraperitoneal MIT significantly suppressed the growth of carcinoid cells in nude mouse models (median tumor weight in PBS, s.c., i.p. groups 790 mm3 vs 280 mm3, 480 mm3; P < 0.01). We also evaluated the Sp1 expression in growing tumors and various organs. We found that the liver expressed the highest level of Sp1 among normal organs (including liver, stomach, large intestine, and small intestine, spleen, kidney, brain and lymph node). However, Sp1 expression in the growing tumors was more than 10 times higher than that in a normal liver. Treatment with MIT reduced the Sp1 expression in the tumors, while no discernible effect on Sp1 expression in normal tissues was observed. This is the first demonstration that MIT selectively inhibited the Sp1 expression in the growing tumors. Consistent with the expression of Sp1, a substantial suppression of VEGF, PDGF, EGFR, and IGFR expression was evident. Finally, treatment with MIT reduced the microvessel formation in tumors by 80% (MVD count; P < 0.01). This antiangiogenic activity was confirmed by in vitro tubulogenesis assay and in vivo Matrigel plug assay. Conclusions: Collectively, our studies strongly indicate that MIT is a potent antiangiogenic agent and its mechanism of action involved suppression of Sp1 expression and its consequent downregulation of its downstream targets including VEGF, PDGF, EGFR, and IGFR that are key to tumor angiogenesis. No significant financial relationships to disclose.
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Affiliation(s)
- K. Xie
- M. D. Anderson Cancer Center, Houston, TX
| | - Z. Jia
- M. D. Anderson Cancer Center, Houston, TX
| | - J. Zhang
- M. D. Anderson Cancer Center, Houston, TX
| | - L. Wang
- M. D. Anderson Cancer Center, Houston, TX
| | - Q. Li
- M. D. Anderson Cancer Center, Houston, TX
| | - X. Le
- M. D. Anderson Cancer Center, Houston, TX
| | - J. C. Yao
- M. D. Anderson Cancer Center, Houston, TX
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Goodman I, Flitman S, Xie K, Minagar A, Richter R. P08.13 Urine neural thread protein (UNTP) levels in mild cognitive impairment (MCI). Clin Neurophysiol 2006. [DOI: 10.1016/j.clinph.2006.06.305] [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: 10/24/2022]
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Liu X, Xie K, Wang S, Stein J, Aziz T. P22.3 The physiologically modulated electrode potentials at the depth electrode–brain interface in humans. Clin Neurophysiol 2006. [DOI: 10.1016/j.clinph.2006.06.420] [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: 11/26/2022]
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Phan AT, Wang L, Xie K, Zhang J, Rashid A, Evans D, Vauthey J, Abdalla E, Abbruzzese JL, Yao JC. Association of VEGF expression with poor prognosis among patients with low-grade neuroendocrine carcinoma. J Clin Oncol 2006. [DOI: 10.1200/jco.2006.24.18_suppl.4091] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
4091 Background: Low-grade neuroendocrine carcinomas (LGNET) can arise from neuroendocrine cells throughout the body and have a wide range of aggressiveness. Reliable predictive and prognostic markers of outcome are lacking. Angiogenesis is critical for metastasis and tumor growth beyond a small tumor size and VEGF is a powerful mediator of tumor angiogenesis. Methods: LGNET tissue from 50 patients (24 with local-regional disease, 26 with metastasis) who underwent tumor resection at the University of Texas M.D. Anderson Cancer Center was evaluated for expression VEGF by immunohistochemistry. Chi-square and Fisher’s exact test were used to test the association between study parameters. Kaplan-Meier analysis was used to assess the affect of study parameters on progression free survival (PFS). Results: Strong, weak, and negative VEGF expression was observed in 32%, 54%, and 14% of cases respectively. Larger tumor size was observed among patients with strong VEGF expression. Mean tumor sizes in patients with strong, weak and negative VEGF were 4.8, 2.8, and 2.9 cm. Compared to the group with negative VEGF expression, VEGF (weak/strong) expression was associated with metastasis (14% v 58%; P = .045). The median PFS durations of patients with strong and weak VEGF expression were 29 months and 81 months respectively. With a median follow-up duration of 50 months, the median PFS duration for the group with negative VEGF expression has not been reached. Compared by log rank test VEGF expression was associated with poor PFS (P = .022). Conclusions: This study suggests that tissue VEGF expression is associated with aggressive tumor growth and metastasis among patients with LGNET. VEGF expression may serve as a useful prognostic marker following tumor resection. No significant financial relationships to disclose.
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Affiliation(s)
- A. T. Phan
- M. D. Anderson Cancer Center, Houston, TX
| | - L. Wang
- M. D. Anderson Cancer Center, Houston, TX
| | - K. Xie
- M. D. Anderson Cancer Center, Houston, TX
| | - J. Zhang
- M. D. Anderson Cancer Center, Houston, TX
| | - A. Rashid
- M. D. Anderson Cancer Center, Houston, TX
| | - D. Evans
- M. D. Anderson Cancer Center, Houston, TX
| | - J. Vauthey
- M. D. Anderson Cancer Center, Houston, TX
| | - E. Abdalla
- M. D. Anderson Cancer Center, Houston, TX
| | | | - J. C. Yao
- M. D. Anderson Cancer Center, Houston, TX
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Liu CL, Xie K, Miao Y, Zha XF, Feng ZJ, Lee J. Study on the communication method for chaotic encryption in remote monitoring systems. Soft comput 2005. [DOI: 10.1007/s00500-005-0475-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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49
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Mares JE, Yao J, Wang L, Wei D, Gong W, Hassan M, Wu TT, Mansfield P, Ajani JA, Xie K. Sp1 expression is associated with increased VEGF, advanced stage, and poor survival in patients with resected gastric cancer (GC). J Clin Oncol 2004. [DOI: 10.1200/jco.2004.22.90140.4039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- J. E. Mares
- University of Texas M. D. Anderson Cancer Center, Houston, TX
| | - J. Yao
- University of Texas M. D. Anderson Cancer Center, Houston, TX
| | - L. Wang
- University of Texas M. D. Anderson Cancer Center, Houston, TX
| | - D. Wei
- University of Texas M. D. Anderson Cancer Center, Houston, TX
| | - W. Gong
- University of Texas M. D. Anderson Cancer Center, Houston, TX
| | - M. Hassan
- University of Texas M. D. Anderson Cancer Center, Houston, TX
| | - T.-T. Wu
- University of Texas M. D. Anderson Cancer Center, Houston, TX
| | - P. Mansfield
- University of Texas M. D. Anderson Cancer Center, Houston, TX
| | - J. A. Ajani
- University of Texas M. D. Anderson Cancer Center, Houston, TX
| | - K. Xie
- University of Texas M. D. Anderson Cancer Center, Houston, TX
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Jiang Y, Wang L, Gong W, Ajani JA, Abbruzzese JL, Xie K. High expression level of insulin-like growth factor I receptor is associated with regional lymph node metastasis. J Clin Oncol 2004. [DOI: 10.1200/jco.2004.22.90140.4115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Y. Jiang
- M.D. Anderson Cancer Center, Houston, TX
| | - L. Wang
- M.D. Anderson Cancer Center, Houston, TX
| | - W. Gong
- M.D. Anderson Cancer Center, Houston, TX
| | | | | | - K. Xie
- M.D. Anderson Cancer Center, Houston, TX
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