1
|
Wang M, Wu FS, Cui B, Liang W, Zeng Q, Ma KF. [Mechanism of noise induced hidden hearing loss based on proteomics]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2024; 42:241-247. [PMID: 38677986 DOI: 10.3760/cma.j.cn121094-20230512-00171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 04/29/2024]
Abstract
Objective: To explore the mechanism of noise-induced hidden hearing loss by proteomics. Methods: In October 2022, 64 SPF male C57BL/6J mice were divided into control group and noise exposure group with 32 mice in each group according to random sampling method. The noise exposure group was exposed to 100 dB sound pressure level, 2000-16000 Hz broadband noise for 2 h, and the mouse hidden hearing loss model was established. Auditory brainstem response (ABR) was used to test the change of hearing threshold of mice on the 7th day after noise exposure, the damage of basal membrane hair cells was observed by immunofluorescence, and the differentially expressed proteins in the inner ear of mice in each group were identified and analyzed by 4D-Label-free quantitative proteomics, and verified by Western blotting. The results were statistically analyzed by ANOVA and t test. Results: On the 7th day after noise exposure, there was no significant difference in hearing threshold between the control group and the noise exposure group at click and 8000 Hz acoustic stimulation (P>0.05) . The hearing threshold in the noise exposure group was significantly higher than that in the control group under 16000 Hz acoustic stimulation (P<0.05) . Confocal immunofluorescence showed that the basal membrane hair cells of cochlear tissue in noise exposure group were arranged neatly, but the relative expression of C-terminal binding protein 2 antibody of presynaptic membrane in middle gyrus and basal gyrus was significantly lower than that in control group (P<0.05) . GO enrichment analysis showed that the functions of differentially expressed proteins were mainly concentrated in membrane potential regulation, ligand-gated channel activity, and ligand-gated ion channel activity. KEGG pathway enrichment analysis showed that differentially expressed proteins were significantly enriched in phosphatidylinositol 3 kinase-protein kinase B (PI3K-Akt) signaling pathway, NOD-like receptor signaling pathway, calcium signaling pathway, etc. Western blotting showed that the expression of inositol 1, 4, 5-trisphosphate receptor 3 (Itpr3) was increased and the expression of solute carrier family 38 member 2 (Slc38a2) was decreased in the noise exposure group (P<0.05) . Conclusion: Through proteomic analysis, screening and verification of the differential expression proteins Itpr3 and Slc38a2 in the constructed mouse noise-induced hidden hearing loss model, the glutaminergic synaptic related pathways represented by Itpr3 and Slc38a2 may be involved in the occurrence of hidden hearing loss.
Collapse
Affiliation(s)
- M Wang
- School of Public Health, Tianjin Medical University, Tianjin 300070, China Institute for Occupational Health, Tianjin Centers for Disease Control and Prevention, Tianjin 300011, China
| | - F S Wu
- Institute of Environmental and Operational Medicine, Academy of Military Medical Sciences, Academy of Military Sciences, Tianjin 300050, China
| | - B Cui
- Institute of Environmental and Operational Medicine, Academy of Military Medical Sciences, Academy of Military Sciences, Tianjin 300050, China
| | - W Liang
- The First Affiliated Hospital of Xiamen University, Xiamen 361003, China
| | - Q Zeng
- School of Public Health, Tianjin Medical University, Tianjin 300070, China Institute for Occupational Health, Tianjin Centers for Disease Control and Prevention, Tianjin 300011, China
| | - K F Ma
- Institute of Environmental and Operational Medicine, Academy of Military Medical Sciences, Academy of Military Sciences, Tianjin 300050, China
| |
Collapse
|
2
|
Liu Y, Cui B, Zhang P, Xiao S, Duan D, Ding Y. Polymicrobial Infection Induces Adipose Tissue Dysfunction via Gingival Extracellular Vesicles. J Dent Res 2024; 103:187-196. [PMID: 38095271 DOI: 10.1177/00220345231211210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2024] Open
Abstract
Recent studies have indicated that periodontitis promotes metabolic dysregulation and insulin resistance by affecting the function of white adipose tissue (WAT). However, the mechanisms linking periodontitis to adipose tissue dysfunction still need to be explored. Extracellular vesicles (EVs) deliver messages to distal sites and regulate their function. Also, recent studies have shown that periodontitis changes the composition of EVs in body fluids and that EVs might be one of the mechanisms underlying the relationship between periodontitis and insulin resistance. Herein, we explored the impact of polymicrobial oral infection with periodontal pathogens on the function of WAT and the role of gingival EVs (gEVs) in the process. Mice were subjected to oral inoculation with 109 Porphyromonas gingivalis and 108 Fusobacterium nucleatum every other day for 14 wk. This prolonged bacterial infection induced WAT dysfunction, characterized by reduced levels of AKT phosphorylation, adiponectin, leptin, and genes associated with adipogenesis and lipogenesis. We successfully isolated gEVs with satisfactory yield and purity. The RNA sequencing results showed that the differentially expressed microRNAs in the gEVs of mice with polymicrobial oral infection were involved in insulin signaling and adipose tissue function. Notably, our in vitro experiments and RNA sequencing results revealed the functional similarities between gEVs and plasma-derived EVs. Furthermore, intraperitoneal injection with gEVs derived from mice with oral infection induced the dysfunction of WAT in healthy mice. Overall, our findings provide evidence for the influence of polymicrobial oral infection on WAT function and propose gEVs as a novel pathway through which periodontal infection may exert its effects on WAT.
Collapse
Affiliation(s)
- Y Liu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Periodontology, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
- Department of Stomatology, The Third People's Hospital of Chengdu, The Affiliated Hospital of Southwest Jiaotong University, Chengdu, Sichuan, China
| | - B Cui
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Periodontology, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - P Zhang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Periodontology, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - S Xiao
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Periodontology, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - D Duan
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Periodontology, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Y Ding
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Periodontology, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| |
Collapse
|
3
|
Chen N, Song DD, Qiu ZH, Cui B, Diao YG. [Effect of high flow nasal catheter oxygen to prevent hypoxemia in endoscopic retrograde cholangiopancreatography surgery in aged]. Zhonghua Yi Xue Za Zhi 2023; 103:3273-3278. [PMID: 37926571 DOI: 10.3760/cma.j.cn112137-20230414-00612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 11/07/2023]
Abstract
Objective: To explore the effect of high-flow nasal catheter oxygen inhalation in preventing hypoxemia during endoscopic retrograde cholangiopancreatography (ERCP) surgery in elderly patients. Methods: From September 2021 to September 2022, 116 elderly patients (aged ≥ 70 years) who underwent elective ERCP in the Northern Theater General Hospital were prospectively selected, then divided into general nasal catheter oxygen inhalation group [group C, 31 males and 27 females, aged (79.8±6.4) years] and high-flow nasal catheter oxygen inhalation group [group H, 33 males and 25 females, aged (81.4±6.7) years], with 58 patients in each group. All patients were monitored for anesthesia by target-controlled infusion of propofol and remifentanil. The main outcome index was the incidence of intraoperative subclinical hypoxemia (90% ≤ SpO2 < 95%, duration >5 s), hypoxemia (75% < SpO2 < 90%, 5 s < duration ≤ 60 s) and severe hypoxemia (SpO2 < 75% or SpO2 < 90%, duration > 60 s). Secondary observation measures were SpO2 from T0 to T5 (T0, before anesthesia induction; T1, immediately after anesthesia induction; T2, endoscopic introduction; T3, duodenal papula intubation; T4, endoscopic withdrawal; T5, postoperative awakening), the arterial oxygen partial pressure (PaO2), carbon dioxide partial pressure (PaCO2) and pH at T0, 15 min after the induction and T5. Results: The incidence of intraoperative subclinical hypoxemia in group C and group H was 12.0% (7/58) and 3.4% (2/58) respectively, which showed no significant statistical difference (P=0.165) from each other. The incidence of intraoperative hypoxemia in group H was 8.6% (5/58), which was significantly lower than 31.0% (18/58) of group C (P=0.003). Neither group had intraoperative severe hypoxemia. SpO2 of group H were (98.2±0.9)%, (98.2±0.9)%, (97.8±1.7)% and (97.7±1.7)% at T1, T2, T3, T4, which were higher than (96.8±2.1)%, (96.4±3.0)%, (96.1±2.9)% and (96.4±3.4)% in group C (all P<0.05). PaO2 at 15 min after induction in group H was (240.5±46.7) mmHg (1 mmHg=0.133 kPa), which was higher than that of group C (170.6±33.4) mmHg (P<0.001). There was no statistically significant difference in pH and PaCO2 between the two groups of patients at each timepoint. Conclusion: High flow nasal catheter oxygen can effectively reduce the incidence of hypoxemia in ERCP in elderly patients.
Collapse
Affiliation(s)
- N Chen
- Department of Anesthesiology, Northern Theater Command General Hospital, Shenyang 110016, China
| | - D D Song
- Department of Anesthesiology, Northern Theater Command General Hospital, Shenyang 110016, China
| | - Z H Qiu
- Department of Anesthesiology, Northern Theater Command General Hospital, Shenyang 110016, China
| | - B Cui
- Department of Anesthesiology, Northern Theater Command General Hospital, Shenyang 110016, China
| | - Y G Diao
- Department of Anesthesiology, Northern Theater Command General Hospital, Shenyang 110016, China
| |
Collapse
|
4
|
Yao YL, He SK, Lei Z, Ye T, Xie Y, Deng ZG, Cui B, Qi W, Yang L, Zhu SP, He XT, Zhou WM, Qiao B. High-Flux Neutron Generator Based on Laser-Driven Collisionless Shock Acceleration. Phys Rev Lett 2023; 131:025101. [PMID: 37505952 DOI: 10.1103/physrevlett.131.025101] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Revised: 10/20/2022] [Accepted: 05/24/2023] [Indexed: 07/30/2023]
Abstract
A novel compact high-flux neutron generator with a pitcher-catcher configuration based on laser-driven collisionless shock acceleration (CSA) is proposed and experimentally verified. Different from those that previously relied on target normal sheath acceleration (TNSA), CSA in nature favors not only acceleration of deuterons (instead of hydrogen contaminants) but also increasing of the number of deuterons in the high-energy range, therefore having great advantages for production of high-flux neutron source. The proof-of-principle experiment has observed a typical CSA plateau feature from 2 to 6 MeV in deuteron energy spectrum and measured a forward neutron flux with yield 6.6×10^{7} n/sr from the LiF catcher target, an order of magnitude higher than the compared TNSA case, where the laser intensity is 10^{19} W/cm^{2}. Self-consistent simulations have reproduced the experimental results and predicted that a high-flux forward neutron source with yield up to 5×10^{10} n/sr can be obtained when laser intensity increases to 10^{21} W/cm^{2} under the same laser energy.
Collapse
Affiliation(s)
- Y L Yao
- Center for Applied Physics and Technology, HEDPS and State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China
| | - S K He
- Science and Technology on Plasma Physics Laboratory, Research Center of Laser Fusion, China Academy of Engineering Physics (CAEP), Mianyang 621900, China
| | - Z Lei
- Center for Applied Physics and Technology, HEDPS and State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China
| | - T Ye
- Institute of Applied Physics and Computational Mathematics, Beijing 100094, China
| | - Y Xie
- Center for Applied Physics and Technology, HEDPS and State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China
| | - Z G Deng
- Science and Technology on Plasma Physics Laboratory, Research Center of Laser Fusion, China Academy of Engineering Physics (CAEP), Mianyang 621900, China
| | - B Cui
- Science and Technology on Plasma Physics Laboratory, Research Center of Laser Fusion, China Academy of Engineering Physics (CAEP), Mianyang 621900, China
| | - W Qi
- Science and Technology on Plasma Physics Laboratory, Research Center of Laser Fusion, China Academy of Engineering Physics (CAEP), Mianyang 621900, China
| | - L Yang
- Science and Technology on Plasma Physics Laboratory, Research Center of Laser Fusion, China Academy of Engineering Physics (CAEP), Mianyang 621900, China
| | - S P Zhu
- Institute of Applied Physics and Computational Mathematics, Beijing 100094, China
| | - X T He
- Institute of Applied Physics and Computational Mathematics, Beijing 100094, China
| | - W M Zhou
- Science and Technology on Plasma Physics Laboratory, Research Center of Laser Fusion, China Academy of Engineering Physics (CAEP), Mianyang 621900, China
| | - B Qiao
- Center for Applied Physics and Technology, HEDPS and State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China
- Frontiers Science Center for Nano-optoelectronic, Peking University, Beijing 100094, China
| |
Collapse
|
5
|
Tan DD, Liu YD, Fan YB, Wei CJ, Song DY, Yang HP, Pan H, Cui WL, Mao SS, Xu XP, Yu XL, Cui B, Xiong H. [Clinical and genetic characteristics of 9 rare cases with coexistence of dual genetic diagnoses]. Zhonghua Er Ke Za Zhi 2023; 61:345-350. [PMID: 37011981 DOI: 10.3760/cma.j.cn112140-20220922-00827] [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] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
Abstract
Objective: To analyze the clinical and genetic characteristics of pediatric patients with dual genetic diagnoses (DGD). Methods: Clinical and genetic data of pediatric patients with DGD from January 2021 to February 2022 in Peking University First Hospital were collected and analyzed retrospectively. Results: Among the 9 children, 6 were boys and 3 were girls. The age of last visit or follow-up was 5.0 (2.7,6.8) years. The main clinical manifestations included motor retardation, mental retardation, multiple malformations, and skeletal deformity. Cases 1-4 were all all boys, showed myopathic gait, poor running and jumping, and significantly increased level of serum creatine kinase. Disease-causing variations in Duchenne muscular dystrophy (DMD) gene were confirmed by genetic testing. The 4 children were diagnosed with DMD or Becker muscular dystrophy combined with a second genetic disease, including hypertrophic osteoarthropathy, spinal muscular atrophy, fragile X syndrome, and cerebral cavernous malformations type 3, respectively. Cases 5-9 were clinically and genetically diagnosed as COL9A1 gene-related multiple epiphyseal dysplasia type 6 combined with NF1 gene-related neurofibromatosis type 1, COL6A3 gene-related Bethlem myopathy with WNT1 gene-related osteogenesis imperfecta type XV, Turner syndrome (45, X0/46, XX chimera) with TH gene-related Segawa syndrome, Chromosome 22q11.2 microduplication syndrome with DYNC1H1 gene-related autosomal dominant lower extremity-predominant spinal muscular atrophy-1, and ANKRD11 gene-related KBG syndrome combined with IRF2BPL gene-related neurodevelopmental disorder with regression, abnormal movement, language loss and epilepsy. DMD was the most common, and there were 6 autosomal dominant diseases caused by de novo heterozygous pathogenic variations. Conclusions: Pediatric patients with coexistence of double genetic diagnoses show complex phenotypes. When the clinical manifestations and progression are not fully consistent with the diagnosed rare genetic disease, a second rare genetic disease should be considered, and autosomal dominant diseases caused by de novo heterozygous pathogenic variation should be paid attention to. Trio-based whole-exome sequencing combining a variety of molecular genetic tests would be helpful for precise diagnosis.
Collapse
Affiliation(s)
- D D Tan
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
| | - Y D Liu
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
| | - Y B Fan
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
| | - C J Wei
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
| | - D Y Song
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
| | - H P Yang
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
| | - H Pan
- Department of Central Laboratory, Peking University First Hospital, Beijing 100034, China
| | - W L Cui
- Department of Rehabilitation, Children's Hospital Affiliated to Zhengzhou University, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou 450053, China
| | - S S Mao
- Department of Neurology, the Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310052, China
| | - X P Xu
- Department of Pediatrics, the First Affiliated Hospital of Harbin Medical University, Harbin 150001, China
| | - X L Yu
- Department of Neurology, Tianjin Children's Hospital, Tianjin 300134, China
| | - B Cui
- Department of Rehabilitation Medicine, Third Affiliated Hospital of Zhengzhou University, Henan Maternal and Child Health Care Hospital, Zhengzhou 450052, China
| | - H Xiong
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
| |
Collapse
|
6
|
Zhang AR, Ma KF, She XJ, Liu HT, Cui B, Wang R. [Preliminary observation on the differential expression of metformin in preventing noise-induced hearing loss in inner ear protein group of rats]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2022; 40:248-254. [PMID: 35545589 DOI: 10.3760/cma.j.cn121094-20210719-00355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To study the protective effects of metformin on noise-induced hearing loss (NIHL) and its differential protein omics expression profile. Methods: In January 2021, 39 male Wistar rats were randomly divided into control group, noise exposure group and metformin+noise exposure group, with 13 rats in each group. Rats in the noise exposure group and metformin+noise exposure group were continuously exposed to octave noise with sound pressure level of 120 dB (A) and center frequency of 8 kHz for 4 h. Rats in the metformin+noise exposure group were treated with 200 mg/kg/d metformin 3 d before noise exposure for a total of 7 d. Auditory brainstem response (ABR) was used to test the changes of hearing thresholds before noise exposure and 1, 4, 7 d after noise exposure in the right ear of rats in each group. Tandem mass tag (TMT) quantitative proteomics was used to identify and analyze the differentially expressed protein in the inner ear of rats in each group, and it was verified by immunofluorescence staining with frozen sections. Results: The click-ABR thresholds of right ear in the noise exposure group and metformin+noise exposure group were significantly higher than those in the control group 1, 4, 7 d after noise exposure (P<0.05) . The click-ABR threshold of right ear in the metformin+noise exposure group were significantly lower than that in the noise exposure group (P<0.05) . Compared with the noise exposure group, 1035 up-regulated proteins and 1145 down-regulated proteins were differentially expressed in the metformin+noise exposure group. GO enrichment analysis showed that the significantly differentially expressed proteins were mainly involved in binding, molecular function regulation, signal transduction, and other functions. Enrichment analysis of KEGG pathway revealed that the pathways for significant enrichment of differentially expressed proteins included phosphatidylinositol 3-kinase-protein kinase B (PI3K-Akt) signaling pathway, focal adhesion, diabetic cardiomyopathy, mitogen, and mitogen-activated protein kinase (MAPK) signaling pathway. Immunofluorescence experiments showed that compared with the noise exposure group, the fluorescence intensity of insulin-like growth factor 1 receptor (IGF1R) in the metformin+noise exposure group was increased, and the fluorescence intensity of eukaryotic translation initiation factor 4E binding protein 1 (eIF4EBP1) was decreased. Conclusion: Noise exposure can lead to an increase in rat hearing threshold, and metformin can improve noise-induced hearing threshold abnormalities through multiple pathways and biological processes.
Collapse
Affiliation(s)
- A R Zhang
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University and shandong Acacdemy of Medical Sciences, Jinan 250062, China Institute of Environmental and Operational Medicine, Academy of Military Medical Sciences, Academy of Military Sciences, Tianjin 300050, China
| | - K F Ma
- Institute of Environmental and Operational Medicine, Academy of Military Medical Sciences, Academy of Military Sciences, Tianjin 300050, China
| | - X J She
- Institute of Environmental and Operational Medicine, Academy of Military Medical Sciences, Academy of Military Sciences, Tianjin 300050, China
| | - H T Liu
- Institute of Environmental and Operational Medicine, Academy of Military Medical Sciences, Academy of Military Sciences, Tianjin 300050, China
| | - B Cui
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University and shandong Acacdemy of Medical Sciences, Jinan 250062, China Institute of Environmental and Operational Medicine, Academy of Military Medical Sciences, Academy of Military Sciences, Tianjin 300050, China
| | - R Wang
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University and shandong Acacdemy of Medical Sciences, Jinan 250062, China
| |
Collapse
|
7
|
Li H, Jiao YL, Zhou RF, Liu S, Cui B, Wang LC, Liu XW, Zhao YR. FKBP51 acts as a biomarker of early metastasis and is related to carmustine sensitivity in human glioma cells. Eur Rev Med Pharmacol Sci 2021; 24:8918-8930. [PMID: 32964982 DOI: 10.26355/eurrev_202009_22833] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Given that FK506 binding protein 51 (FKBP51) is upregulated in multiple cancers, we designed the present study to characterize its role as well as underlying regulatory mechanisms in glioma in the presence and absence of the chemotherapeutic carmustine (BCNU). MATERIALS AND METHODS Through lentiviral overexpression and shRNA knockdown of FKBP51, we examined the effects on BT325 glioma cell proliferation, migration and invasion using quantitative reverse transcription PCR (qRT-PCR), CCK-8 assay, flow cytometry, and transwell assay. RESULTS The upregulation of FKBP51 resulted in significantly decreased BT325 cell proliferation and cell viability, cell cycle arrest, reduced BCNU chemosensitivity and AKT pathway inactivation. However, FKBP51-overexpressed BT325 cells showed enhanced migration and invasion, which was supported by corresponding increase in phosphorylated IKKα (p-IKKα), MMP-2, and MMP-9 levels, as well as increased NF-κB p65 nuclear translocation. By contrast, FKBP51-suppressed BT325 cells showed excessive proliferation and BCNU resistance due to increased p-AKT activation and attenuated migration and invasion. CONCLUSIONS We demonstrated that the effects of FKBP51 on BT325 glioma cell proliferation, migration, invasion and BCNU chemosensitization are modulated via the AKT and NF-κB pathways. Furthermore, our findings suggest the potential of FKBP51 as a prognostic glioma biomarker and an indicator of patient response to chemotherapy.
Collapse
Affiliation(s)
- H Li
- Central Laboratory, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, P.R. China.
| | | | | | | | | | | | | | | |
Collapse
|
8
|
Dai S, Yang K, Liu D, Shi Q, Cui B, Liu S, Wang D. Impacts of impurity flux on erosion and deposition of carbon/tungsten rough surfaces. Nuclear Materials and Energy 2021. [DOI: 10.1016/j.nme.2020.100802] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
9
|
Fan L, Constantin L, Wu ZP, McElveen KA, Chen XG, He T, Wang F, Debiemme-Chouvy C, Cui B, Lai RY, Li X, Silvain JF, Lu YF. Laser vibrational excitation of radicals to prevent crystallinity degradation caused by boron doping in diamond. Sci Adv 2021; 7:7/4/eabc7547. [PMID: 33523921 PMCID: PMC7817095 DOI: 10.1126/sciadv.abc7547] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Accepted: 12/02/2020] [Indexed: 06/12/2023]
Abstract
Pursuing high-level doping without deteriorating crystallinity is prohibitively difficult but scientifically crucial to unleashing the hidden power of materials. This study demonstrates an effective route for maintaining lattice integrity during the combustion chemical vapor deposition of highly conductive boron-doped diamonds (BDDs) through laser vibrational excitation of a growth-critical radical, boron dihydride (BH2). The improved diamond crystallinity is attributed to a laser-enabled, thermal nonequilibrium suppression of the relative abundance of boron hydrides (BH), whose excessive presence induces boron segregation and disturbs the crystallization. The BDDs show a boron concentration of 4.3 × 1021 cm-3, a film resistivity of 28.1 milliohm·cm, and hole mobility of 55.6 cm2 V-1 s-1, outperforming a commercial BDD. The highly conductive and crystalline BDDs exhibit enhanced efficiency in sensing glucose, confirming the advantages of laser excitation in producing high-performance BDD sensors. Regaining crystallinity with laser excitation in doping process could remove the long-standing bottlenecks in semiconductor industry.
Collapse
Affiliation(s)
- L Fan
- Department of Electrical and Computer Engineering, University of Nebraska-Lincoln, Lincoln, NE 68588, USA
| | - L Constantin
- Department of Electrical and Computer Engineering, University of Nebraska-Lincoln, Lincoln, NE 68588, USA
- The French National Centre for Scientific Research, CNRS, University of Bordeaux, Bordeaux INP, ICMCB UMR 5026, F-33608 Pessac, France
| | - Z P Wu
- Department of Electrical and Computer Engineering, University of Nebraska-Lincoln, Lincoln, NE 68588, USA
| | - K A McElveen
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, NE 68588, USA
| | - X G Chen
- Department of Physics and Astronomy, University of Nebraska-Lincoln, Lincoln, NE 68588, USA
| | - T He
- Department of Civil and Environmental Engineering, University of Nebraska-Lincoln, Lincoln, NE 68588, USA
| | - F Wang
- Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, NE 68588, USA
| | - C Debiemme-Chouvy
- Laboratoire Interfaces et Systémes Electrochimiques, UMR 8235, CNRS, Sorbonne Université, F-75252 Paris Cedex, France
| | - B Cui
- Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, NE 68588, USA
| | - R Y Lai
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, NE 68588, USA
| | - X Li
- Department of Civil and Environmental Engineering, University of Nebraska-Lincoln, Lincoln, NE 68588, USA
| | - J F Silvain
- The French National Centre for Scientific Research, CNRS, University of Bordeaux, Bordeaux INP, ICMCB UMR 5026, F-33608 Pessac, France
| | - Y F Lu
- Department of Electrical and Computer Engineering, University of Nebraska-Lincoln, Lincoln, NE 68588, USA.
| |
Collapse
|
10
|
Cai G, Gao Y, Lu W, Zeng S, Chi J, Jiao X, Li R, Li X, Liu J, Song K, Yu Y, Dai Y, Cui B, Lv W, Kong B, Xie X, Ma D, Gao Q. Ovarian cancer and pretreatment thrombosis-associated indices: Evidence based on multicenter, retrospective, observational study. Gynecol Oncol 2020. [DOI: 10.1016/j.ygyno.2020.05.624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
11
|
Ding Y, Cui B, Wei H, Li CJ, Wang YP. [Medical treatment for neurogenic orthostatic hypotension]. Zhonghua Nei Ke Za Zhi 2020; 59:653-656. [PMID: 34865387 DOI: 10.3760/cma.j.cn112138-20190808-00554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Affiliation(s)
- Y Ding
- Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing 100053,China
| | - B Cui
- Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing 100053,China
| | - H Wei
- Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing 100053,China
| | - C J Li
- Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing 100053,China
| | - Y P Wang
- Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing 100053,China
| |
Collapse
|
12
|
Ding Y, Cui B, Wei H, Li CJ, Wang YP. [Non-drug therapy for neurogenic orthostatic hypotension]. Zhonghua Nei Ke Za Zhi 2020; 59:563-565. [PMID: 32594694 DOI: 10.3760/cma.j.cn112138-20190808-00553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Affiliation(s)
- Y Ding
- Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - B Cui
- Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - H Wei
- Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - C J Li
- Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Y P Wang
- Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| |
Collapse
|
13
|
Dai S, Wang Y, Shi Q, Wang M, Xie T, Liu B, Cui B, Wang D. Effects of tungsten and carbon rough surfaces on the material mixing and impurity erosion/deposition. Fusion Engineering and Design 2018. [DOI: 10.1016/j.fusengdes.2018.04.032] [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] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
14
|
Sun L, Zhang M, Xu P, Fan L, Cui B, Zeng Q, Gu Q. [Effects of ethylbenzene on cell injury and mitochondrial membrane potential of CPCs]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2018; 36:146-149. [PMID: 29699019 DOI: 10.3760/cma.j.issn.1001-9391.2018.02.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the effects of ethylbenzene on growth morphology、proliferation ability and mitochondrial membrane potential (MMP) of cochlear progenitor cells (CPCs) , and to lay a foundation for the mechanism of hearing loss induced by ethylbenzene. Methods: We can use the fluorescence microscopy to identify the original CPCs isolated from the newborn rats, and followed by the addition of different concentrations of ethylbenzene (0, 15, 30, 45 μmol/L) for 24 hours. The morphological changes of cell injury were observed by inverted optical microscope. The proliferation ability of cells was detected by MTT colorimetry, and the change of MMP was detected by fluorescent probe JC-1. Results: The results of CPCs identification showed the expression of Myosin VIIa and Epsin positive; The results observed by inverted optical microscope showed all groups of CPCs morphological changes compared with the control group; MTT results showed that the decreased significantly proliferation ability of CPCs groups compared with the control group and a dose effect relationship with statistically significant difference (P<0.05) ; JC-1 test results showed the decreased significantly mitochondrial membrane potential in the treated group compared with the control group, and there was a statistically significant difference (P<0.05) . Conclusion: Ethylbenzene may cause damage to CPCs, inhibition of cell proliferation and decrease of MMP in rats.
Collapse
Affiliation(s)
- L Sun
- The Public Health of Tianjin Medical University, Tianjin 300070, China
| | | | | | | | | | | | | |
Collapse
|
15
|
Xu P, Zhang M, Sun L, Fan L, Cui B, Yu XJ, Zeng Q, Gu Q. [Construction of cochlear progenitor cells with recombinant short-hairpin RNA lentiviral vector inhibiting the expression of the β-catenin gene]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2018; 36:150-153. [PMID: 29699020 DOI: 10.3760/cma.j.issn.1001-9391.2018.02.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To construct a recombinant short-hairpin RNA (shRNA) lentiviral vector targeting the β-catenin gene in cochlear precursor cells (CPCs) in mice, and to investigate its inhibitory effect. Methods: PCR was used for the multiplication of the β-catenin gene, and shRNA oligo was designed based on the β-catenin gene to construct an interference vector. Gateway Technology was used to construct shRNA lentiviral vector which carried the β-catenin gene, and then 293FT cells were transfected with the constructed lentiviral vector and helper plasmids pLV/helper-SL3, pLV/helper-SL4, and pLV/helper-SL5. The virus supernatant was collected to obtain viral particles, and then mouse CPCs were transiently infected with the recombinant lentivirus with four different concentrations (0, 5, 10, and 20 μl) . The shRNA control group was established. Quantitative real-time PCR and Western blot were used to investigate the inhibitory effect of shRNA β-catenin lentiviral vector on β-catenin. Results: The recombinant shRNA β-catenin lentiviral vector was successfully constructed, and the virus titers of shβ-catenin and shβ-catenin-control were 5.05×10(7) and 4.34×10(7), respectively. The results of in vitro experiments showed that in CPCs transfected with four different concentrations of recombinant lentivirus, the content of β-catenin protein gradually decreased with the increase in concentration, and there was a significant difference between groups (P<0.05) ; the CPCs transfected with shβ-catenin had significantly lower mRNA expression of β-catenin than those in the shβ-catenin-control group (P<0.05) . Conclusion: The constructed lentiviral vector targeting the β-catenin gene has a high infection efficiency, and the successful construction of lentiviral vectors provides a technical support for analyzing the role of β-catenin in the differentiation of CPCs into auditory hair cells.
Collapse
Affiliation(s)
- P Xu
- Tianjin Centers for Disease Control and Prevention, Tianjin 300011, China
| | | | | | | | | | | | | | | |
Collapse
|
16
|
Xing B, Cui B, Gu Z, Peng H. Targeted therapies in conversion therapy in mCRC: A systematic review and meta-analysis. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy281.057] [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: 11/14/2022] Open
|
17
|
Shang K, Wang J, Fan X, Cui B, Ma J, Yang H, Zhou Y, Zhao G, Lu J. Clinical Value of Hybrid TOF-PET/MR Imaging-Based Multiparametric Imaging in Localizing Seizure Focus in Patients with MRI-Negative Temporal Lobe Epilepsy. AJNR Am J Neuroradiol 2018; 39:1791-1798. [PMID: 30237304 DOI: 10.3174/ajnr.a5814] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Accepted: 07/18/2018] [Indexed: 01/06/2023]
Abstract
BACKGROUND AND PURPOSE Temporal lobe epilepsy is the most common type of epilepsy. Early surgical treatment is superior to prolonged medical therapy in refractory temporal lobe epilepsy. Successful surgical operations depend on the correct localization of the epileptogenic zone. This study aimed to evaluate the clinical value of hybrid TOF-PET/MR imaging-based multiparametric imaging in localizing the epileptogenic zone in patients with MR imaging-negative for temporal lobe epilepsy. MATERIALS AND METHODS Twenty patients with MR imaging-negative temporal lobe epilepsy who underwent preoperative evaluation and 10 healthy controls were scanned using PET/MR imaging with simultaneous acquisition of PET and arterial spin-labeling. On the basis of the standardized uptake value and cerebral blood flow, receiver operating characteristic analysis and a logistic regression model were used to evaluate the predictive value for the localization. Statistical analyses were performed using statistical parametric mapping. The values of the standardized uptake value and cerebral blood flow, as well as the asymmetries of metabolism and perfusion, were compared between the 2 groups. Histopathologic findings were used as the criterion standard. RESULTS Complete concordance was noted in lateralization and localization among the PET, arterial spin-labeling, and histopathologic findings in 12/20 patients based on visual assessment. Concordance with histopathologic findings was also obtained for the remaining 8 patients based on the complementary PET and arterial spin-labeling information. Receiver operating characteristic analysis showed that the sensitivity and specificity of PET, arterial spin-labeling, and combined PET and arterial spin-labeling were 100% and 81.8%, 83.3% and 54.5%, and 100% and 90.9%, respectively. When we compared the metabolic abnormalities in patients with those in healthy controls, hypometabolism was detected in the middle temporal gyrus (P < .001). Metabolism and perfusion asymmetries were also located in the temporal lobe (P < .001). CONCLUSIONS PET/MR imaging-based multiparametric imaging involving arterial spin-labeling may increase the clinical value of localizing the epileptogenic zone by providing concordant and complementary information in patients with MR imaging-negative temporal lobe epilepsy.
Collapse
Affiliation(s)
- K Shang
- From the Departments of Nuclear Medicine (K.S., J.W., B.C., J.M., H.Y., J.L.)
| | - J Wang
- From the Departments of Nuclear Medicine (K.S., J.W., B.C., J.M., H.Y., J.L.)
| | - X Fan
- Neurosurgery (X.F., G.Z.)
| | - B Cui
- From the Departments of Nuclear Medicine (K.S., J.W., B.C., J.M., H.Y., J.L.)
| | - J Ma
- From the Departments of Nuclear Medicine (K.S., J.W., B.C., J.M., H.Y., J.L.)
| | - H Yang
- From the Departments of Nuclear Medicine (K.S., J.W., B.C., J.M., H.Y., J.L.)
| | - Y Zhou
- Department of Radiology (Y.Z.), Johns Hopkins University, Baltimore, Maryland
| | - G Zhao
- Neurosurgery (X.F., G.Z.)
| | - J Lu
- From the Departments of Nuclear Medicine (K.S., J.W., B.C., J.M., H.Y., J.L.) .,Radiology (J.L.), Xuanwu Hospital, Capital Medical University, Beijing, China
| |
Collapse
|
18
|
Shen DC, Hou B, Cui B, Li XL, Peng P, Tai HF, Zhang K, Liu SW, Fu HH, Liu MS, Feng F, Cui LY. [Resting-state functional MRI studies of amyotrophic lateral sclerosis patients with various levels of cognitive impairment]. Zhonghua Yi Xue Za Zhi 2018; 98:2002-2006. [PMID: 29996600 DOI: 10.3760/cma.j.issn.0376-2491.2018.25.007] [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: 11/05/2022]
Abstract
Objective: To characterize the brain functional changes of amyotrophic lateral sclerosis (ALS) patients with various levels of cognitive impairment as measured by resting-state functional MRI (RS-fMRI). Methods: From September 2013 to March 2017, a total of 55 patients diagnosed with ALS in Peking Union Medical College Hospital and 20 healthy controls (HCs) were included in this study, and all participants underwent neuropsychological assessments and diffusion tensor imaging scans. According to their cognitive performance, ALS patients were further subclassified into ALS with normal cognition (ALS-Cn, n=27), those with cognitive impairment (ALS-Ci, n=17) and ALS-FTD (n=11). Comparisons of fractional amplitude of low frequency fluctuation (fALFF) value and regional homogeneity (ReHo) value were conducted among the 4 subgroups. Results: The fALFF showed significant differences in bilateral frontal lobe, left temporal lobe and cingulate gyrus, (P<0.001, uncorrected) and the ReHo showed significant differences in left frontal lobe, right temporal lobe and left cingulate gyrus (P<0.001, FDR corrected). The differences mainly stemmed from that patients with ALS-FTD showed decreased fALFF and ReHo in these areas when compared to the other three groups, especially in relation to HCs, mainly locating in left prefrontal lobe and anterior cingulate cortex. The whole-brain comparisons of fALFF and ReHo between ALS-Ci, ALS-Cn and HCs revealed no significant difference (P<0.001, uncorrected). Conclusion: Hypoactivities are detected in extramotor areas in patients with ALS-FTD. RS-fMRI is helpful in investigating the pathophysiologic mechanism of cognitive impairment in ALS.
Collapse
Affiliation(s)
- D C Shen
- Department of Neurology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing 100730, China
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
19
|
Shan LQ, Cai HB, Zhang WS, Tang Q, Zhang F, Song ZF, Bi B, Ge FJ, Chen JB, Liu DX, Wang WW, Yang ZH, Qi W, Tian C, Yuan ZQ, Zhang B, Yang L, Jiao JL, Cui B, Zhou WM, Cao LF, Zhou CT, Gu YQ, Zhang BH, Zhu SP, He XT. Experimental Evidence of Kinetic Effects in Indirect-Drive Inertial Confinement Fusion Hohlraums. Phys Rev Lett 2018; 120:195001. [PMID: 29799245 DOI: 10.1103/physrevlett.120.195001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2017] [Revised: 01/19/2018] [Indexed: 06/08/2023]
Abstract
We present the first experimental evidence supported by simulations of kinetic effects launched in the interpenetration layer between the laser-driven hohlraum plasma bubbles and the corona plasma of the compressed pellet at the Shenguang-III prototype laser facility. Solid plastic capsules were coated with carbon-deuterium layers; as the implosion neutron yield is quenched, DD fusion yield from the corona plasma provides a direct measure of the kinetic effects inside the hohlraum. An anomalous large energy spread of the DD neutron signal (∼282 keV) and anomalous scaling of the neutron yield with the thickness of the carbon-deuterium layers cannot be explained by the hydrodynamic mechanisms. Instead, these results can be attributed to kinetic shocks that arise in the hohlraum-wall-ablator interpenetration region, which result in efficient acceleration of the deuterons (∼28.8 J, 0.45% of the total input laser energy). These studies provide novel insight into the interactions and dynamics of a vacuum hohlraum and near-vacuum hohlraum.
Collapse
Affiliation(s)
- L Q Shan
- Science and Technology on Plasma Physics Laboratory, Research Center of Laser Fusion, CAEP, Mianyang 621900, China
| | - H B Cai
- Institute of Applied Physics and Computational Mathematics, Beijing 100094, China
- HEDPS, Center for Applied Physics and Technology, Peking University, Beijing 100871, China
- IFSA Collaborative Innovation Center, Shanghai Jiao Tong University, Shanghai 200240, China
| | - W S Zhang
- Graduate School, China Academy of Engineering Physics, P.O. Box 2101, Beijing 100088, China
| | - Q Tang
- Science and Technology on Plasma Physics Laboratory, Research Center of Laser Fusion, CAEP, Mianyang 621900, China
| | - F Zhang
- Science and Technology on Plasma Physics Laboratory, Research Center of Laser Fusion, CAEP, Mianyang 621900, China
| | - Z F Song
- Science and Technology on Plasma Physics Laboratory, Research Center of Laser Fusion, CAEP, Mianyang 621900, China
| | - B Bi
- Science and Technology on Plasma Physics Laboratory, Research Center of Laser Fusion, CAEP, Mianyang 621900, China
| | - F J Ge
- Institute of Applied Physics and Computational Mathematics, Beijing 100094, China
| | - J B Chen
- Science and Technology on Plasma Physics Laboratory, Research Center of Laser Fusion, CAEP, Mianyang 621900, China
| | - D X Liu
- Science and Technology on Plasma Physics Laboratory, Research Center of Laser Fusion, CAEP, Mianyang 621900, China
| | - W W Wang
- Science and Technology on Plasma Physics Laboratory, Research Center of Laser Fusion, CAEP, Mianyang 621900, China
| | - Z H Yang
- Science and Technology on Plasma Physics Laboratory, Research Center of Laser Fusion, CAEP, Mianyang 621900, China
| | - W Qi
- Science and Technology on Plasma Physics Laboratory, Research Center of Laser Fusion, CAEP, Mianyang 621900, China
| | - C Tian
- Science and Technology on Plasma Physics Laboratory, Research Center of Laser Fusion, CAEP, Mianyang 621900, China
| | - Z Q Yuan
- Science and Technology on Plasma Physics Laboratory, Research Center of Laser Fusion, CAEP, Mianyang 621900, China
| | - B Zhang
- Science and Technology on Plasma Physics Laboratory, Research Center of Laser Fusion, CAEP, Mianyang 621900, China
| | - L Yang
- Science and Technology on Plasma Physics Laboratory, Research Center of Laser Fusion, CAEP, Mianyang 621900, China
| | - J L Jiao
- Science and Technology on Plasma Physics Laboratory, Research Center of Laser Fusion, CAEP, Mianyang 621900, China
| | - B Cui
- Science and Technology on Plasma Physics Laboratory, Research Center of Laser Fusion, CAEP, Mianyang 621900, China
| | - W M Zhou
- Science and Technology on Plasma Physics Laboratory, Research Center of Laser Fusion, CAEP, Mianyang 621900, China
- IFSA Collaborative Innovation Center, Shanghai Jiao Tong University, Shanghai 200240, China
| | - L F Cao
- Science and Technology on Plasma Physics Laboratory, Research Center of Laser Fusion, CAEP, Mianyang 621900, China
| | - C T Zhou
- Institute of Applied Physics and Computational Mathematics, Beijing 100094, China
| | - Y Q Gu
- Science and Technology on Plasma Physics Laboratory, Research Center of Laser Fusion, CAEP, Mianyang 621900, China
- IFSA Collaborative Innovation Center, Shanghai Jiao Tong University, Shanghai 200240, China
| | - B H Zhang
- Science and Technology on Plasma Physics Laboratory, Research Center of Laser Fusion, CAEP, Mianyang 621900, China
| | - S P Zhu
- Science and Technology on Plasma Physics Laboratory, Research Center of Laser Fusion, CAEP, Mianyang 621900, China
- Institute of Applied Physics and Computational Mathematics, Beijing 100094, China
- Graduate School, China Academy of Engineering Physics, P.O. Box 2101, Beijing 100088, China
| | - X T He
- Institute of Applied Physics and Computational Mathematics, Beijing 100094, China
- HEDPS, Center for Applied Physics and Technology, Peking University, Beijing 100871, China
- IFSA Collaborative Innovation Center, Shanghai Jiao Tong University, Shanghai 200240, China
| |
Collapse
|
20
|
Zhang S, Zhang H, Ghia EM, Liu G, Tripple V, Xu S, Cui B, Widhopf G, Yu J, Schwab R, Messer K, Parker BA, Kipps TJ. Abstract P1-09-07: Breast cancer initiating cells express functional ROR1, which can be targeted by cirmtuzumab to potentially mitigate the risk of relapse after therapy. Cancer Res 2018. [DOI: 10.1158/1538-7445.sabcs17-p1-09-07] [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: 11/16/2022]
Abstract
Abstract
Although initially responsive to chemotherapy, patients with advanced breast cancer often relapse, generally with incurable metastatic disease. This may be due to a subpopulation of tumor cells, called cancer-initiating cells, or cancer stem cells (CSCs), which are relatively resistant to chemotherapy and have self-renewing and tumor-initiating capacities. Prior studies in our laboratory found that CSCs may express ROR1, an onco-embryonic, tyrosine-kinase-like orphan receptor, which we found could bind Wnt5a to activate non-canonical Wnt-signaling (Proc Nat Acad Sci USA 111:17266, 2014). Interrogation of the transcriptomes of breast-cancer cells obtained from patients before and after paclitaxel therapy revealed that chemotherapy treatment enhanced cancer-cell expression of ROR1, along with genes induced by activation of Rho-GTPases (e.g. RhoA, cdc42, and Rac1). We found that primary breast-cancer patient-derived xenografts with high-level expression of ROR1 were enriched for cells that had activated Rho-GTPases and stem-cell-like gene-expression signatures. Furthermore, we found that treatment of breast cancer cell lines with Wnt5a induced ROR1-dependent activation of Rho-GTPases andAKT and induced high-level protein expression of BMI1, also known as polycomb group RING finger protein 4 (PCGF4) or RING finger protein 51 (RNF51); Wnt5a also enhanced the capacity of breast cancer cell lines to form spheroids. All these effects could be inhibited by cirmtuzumab, a humanized high-affinity anti-ROR1 mAb, which can block Wnt5a signaling. We find that ROR1-positive breast cancer cells have a greater capacity to form spheroids or engraft immune-deficient mice than did ROR1-negative cancer cells isolated from the same PDX tumor. Treatment of immune-deficient mice bearing breast-cancer PDX with paclitaxel reduced tumor volumes but enhanced expression of ROR1 and other CSC markers, such as aldehyde dehydrogenase 1 (ALDH1). Moreover, the breast cancer cells surviving such paclitaxel treatment had increased activation of Rho-GTPases and AKT, and increased expression of BMI1, relative to that of breast cancer cells obtained from the same primary tumor prior to therapy. On the other hand, treatment of such mice with cirmtuzumab also reduced breast cancer PDX tumor volumes, but the remaining cells had reduced expression of ROR1 and CSC markers and had impaired capacity to re-engraft immune-deficient mice. Finally, therapy with cirmtuzumab and paclitaxel was more effective in eradicating breast-cancer PDX than treatment with either agent alone. Collectively, these findings support use of cirmtuzumab in combination with conventional anti-cancer drugs to improve the outcome of patients with advanced breast cancer.
Citation Format: Zhang S, Zhang H, Ghia EM, Liu G, Tripple V, Xu S, Cui B, Widhopf G, Yu J, Schwab R, Messer K, Parker BA, Kipps TJ. Breast cancer initiating cells express functional ROR1, which can be targeted by cirmtuzumab to potentially mitigate the risk of relapse after therapy [abstract]. In: Proceedings of the 2017 San Antonio Breast Cancer Symposium; 2017 Dec 5-9; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2018;78(4 Suppl):Abstract nr P1-09-07.
Collapse
Affiliation(s)
- S Zhang
- Moores UCSD Cancer Center, University of California, San Diego, La Jolla, CA; Medical Cancer Research Center, School of Medicine, Shenzhen University, Shenzen, Guangdong, China; University of California, San Diego, La Jolla, CA
| | - H Zhang
- Moores UCSD Cancer Center, University of California, San Diego, La Jolla, CA; Medical Cancer Research Center, School of Medicine, Shenzhen University, Shenzen, Guangdong, China; University of California, San Diego, La Jolla, CA
| | - EM Ghia
- Moores UCSD Cancer Center, University of California, San Diego, La Jolla, CA; Medical Cancer Research Center, School of Medicine, Shenzhen University, Shenzen, Guangdong, China; University of California, San Diego, La Jolla, CA
| | - G Liu
- Moores UCSD Cancer Center, University of California, San Diego, La Jolla, CA; Medical Cancer Research Center, School of Medicine, Shenzhen University, Shenzen, Guangdong, China; University of California, San Diego, La Jolla, CA
| | - V Tripple
- Moores UCSD Cancer Center, University of California, San Diego, La Jolla, CA; Medical Cancer Research Center, School of Medicine, Shenzhen University, Shenzen, Guangdong, China; University of California, San Diego, La Jolla, CA
| | - S Xu
- Moores UCSD Cancer Center, University of California, San Diego, La Jolla, CA; Medical Cancer Research Center, School of Medicine, Shenzhen University, Shenzen, Guangdong, China; University of California, San Diego, La Jolla, CA
| | - B Cui
- Moores UCSD Cancer Center, University of California, San Diego, La Jolla, CA; Medical Cancer Research Center, School of Medicine, Shenzhen University, Shenzen, Guangdong, China; University of California, San Diego, La Jolla, CA
| | - G Widhopf
- Moores UCSD Cancer Center, University of California, San Diego, La Jolla, CA; Medical Cancer Research Center, School of Medicine, Shenzhen University, Shenzen, Guangdong, China; University of California, San Diego, La Jolla, CA
| | - J Yu
- Moores UCSD Cancer Center, University of California, San Diego, La Jolla, CA; Medical Cancer Research Center, School of Medicine, Shenzhen University, Shenzen, Guangdong, China; University of California, San Diego, La Jolla, CA
| | - R Schwab
- Moores UCSD Cancer Center, University of California, San Diego, La Jolla, CA; Medical Cancer Research Center, School of Medicine, Shenzhen University, Shenzen, Guangdong, China; University of California, San Diego, La Jolla, CA
| | - K Messer
- Moores UCSD Cancer Center, University of California, San Diego, La Jolla, CA; Medical Cancer Research Center, School of Medicine, Shenzhen University, Shenzen, Guangdong, China; University of California, San Diego, La Jolla, CA
| | - BA Parker
- Moores UCSD Cancer Center, University of California, San Diego, La Jolla, CA; Medical Cancer Research Center, School of Medicine, Shenzhen University, Shenzen, Guangdong, China; University of California, San Diego, La Jolla, CA
| | - TJ Kipps
- Moores UCSD Cancer Center, University of California, San Diego, La Jolla, CA; Medical Cancer Research Center, School of Medicine, Shenzhen University, Shenzen, Guangdong, China; University of California, San Diego, La Jolla, CA
| |
Collapse
|
21
|
Liu S, Gao J, Chen Z, Qiao X, Huang H, Cui B, Zhu Q, Dai Z, Wu H, Pan Y, Yang C, Liu J. Comparative proteomics reveals the physiological differences between winter tender shoots and spring tender shoots of a novel tea (Camellia sinensis L.) cultivar evergrowing in winter. BMC Plant Biol 2017; 17:206. [PMID: 29157222 PMCID: PMC5697017 DOI: 10.1186/s12870-017-1144-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Accepted: 10/31/2017] [Indexed: 05/18/2023]
Abstract
BACKGROUND A recently discovered tea [Camellia sinensis (L.) O. Kuntze] cultivar can generate tender shoots in winter. We performed comparative proteomics to analyze the differentially accumulated proteins between winter and spring tender shoots of this clonal cultivar to reveal the physiological basis of its evergrowing character during winter. RESULTS We extracted proteins from the winter and spring tender shoots (newly formed two leaves and a bud) of the evergrowing tea cultivar "Dongcha11" respectively. Thirty-three differentially accumulated high-confidence proteins were identified by matrix-assisted laser desorption ionization time of flight mass spectrometry (MALDI-TOF / TOF MS). Among these, 24 proteins had increased abundance while nine showed were decreased abundance in winter tender shoots as compared with the spring tender shoots. We categorized the differentially accumulated proteins into eight critical biological processes based on protein function annotation including photosynthesis, cell structure, protein synthesis & destination, transporters, metabolism of sugars and polysaccharides, secondary metabolism, disease/defense and proteins with unknown functions. Proteins with increased abundance in winter tender shoots were mainly related to the processes of photosynthesis, cytoskeleton and protein synthesis, whereas those with decreased abundance were correlated to metabolism and the secondary metabolism of polyphenolic flavonoids. Biochemical analysis showed that the total contents of soluble sugar and amino acid were higher in winter tender shoots while tea polyphenols were lower as compared with spring tender shoots. CONCLUSIONS Our study suggested that the simultaneous increase in the abundance of photosynthesis-related proteins rubisco, plastocyanin, and ATP synthase delta chain, metabolism-related proteins eIF4 and protease subunits, and the cytoskeleton-structure associated proteins phosphatidylinositol transfer protein and profilin may be because of the adaptation of the evergrowing tea cultivar "Dongcha11" to low temperature and light conditions. Histone H4, Histone H2A.1, putative In2.1 protein and protein lin-28 homologs may also regulate the development of winter shoots and their response to adverse conditions.
Collapse
Affiliation(s)
- Shengjie Liu
- Agro-biological Gene Research Center, Guangdong Academy of Agricultural Sciences, Guangzhou, Guangdong 510640 China
- Guangdong Key Lab of Biotechnology for Plant Development, College of Life Science, South China Normal University, Guangzhou, Guangdong 510631 China
| | - Jiadong Gao
- Agro-biological Gene Research Center, Guangdong Academy of Agricultural Sciences, Guangzhou, Guangdong 510640 China
| | - Zhongjian Chen
- Agro-biological Gene Research Center, Guangdong Academy of Agricultural Sciences, Guangzhou, Guangdong 510640 China
| | - Xiaoyan Qiao
- Tea Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, Guangdong 510640 China
| | - Hualin Huang
- Tea Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, Guangdong 510640 China
| | - Baiyuan Cui
- Agro-biological Gene Research Center, Guangdong Academy of Agricultural Sciences, Guangzhou, Guangdong 510640 China
| | - Qingfeng Zhu
- Agro-biological Gene Research Center, Guangdong Academy of Agricultural Sciences, Guangzhou, Guangdong 510640 China
| | - Zhangyan Dai
- Agro-biological Gene Research Center, Guangdong Academy of Agricultural Sciences, Guangzhou, Guangdong 510640 China
| | - Hualing Wu
- Tea Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, Guangdong 510640 China
| | - Yayan Pan
- Agro-biological Gene Research Center, Guangdong Academy of Agricultural Sciences, Guangzhou, Guangdong 510640 China
| | - Chengwei Yang
- Guangdong Key Lab of Biotechnology for Plant Development, College of Life Science, South China Normal University, Guangzhou, Guangdong 510631 China
| | - Jun Liu
- Agro-biological Gene Research Center, Guangdong Academy of Agricultural Sciences, Guangzhou, Guangdong 510640 China
- Tea Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, Guangdong 510640 China
| |
Collapse
|
22
|
Dai Z, Lang W, Yang H, Tian J, Sun W, Pekbay B, Lin Y, Wang M, Cui B, Yang S, Li H, Luo L, Guo H, Zhang L. Validation of EORTC QLQ-OES18 for Chinese patients with esophageal cancer. Dis Esophagus 2017; 30:1-7. [PMID: 28859386 DOI: 10.1093/dote/dox046] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Accepted: 04/06/2017] [Indexed: 02/06/2023]
Abstract
The aim of this study is to evaluate the reliability, validity, and acceptability of the Chinese version of the EORTC QLQ-OES18 in patients with esophageal cancer. The questionnaire was translated according to the guideline of the EORTC. One hundred and forty-nine patients with esophageal cancer from Tianjin Medical University Cancer Institute and Hospital completed the Karnofsky performance scale (KPS) and the simplified Chinese EORTC QLQ-C30/OES18 scales during July 2013 to January 2014. The results were statistically analyzed by Cronbach's α coefficient, Spearman correlation test with multiple strengthen analysis, and Wilcoxon Rank Sum test. The internal consistency (Cronbach's α coefficient) of all four scales (dysphagia, eating, reflux, and pain) was 0.689-0.822, which were satisfactory or near satisfactory. The absolute values of correlation of each scale between EORTC QLQ-OES18 and EORTC QLQ-C30 were 0.002-0.750 while there was no significant difference between groups divided by KPS scores. We confirmed the Chinese version of EORTC QLQ-OES18 appears to be a reliable, valid, and acceptable instrument for measuring the health-related quality of life of patients with esophageal cancer in mainland China.
Collapse
Affiliation(s)
- Z Dai
- Key Laboratory of Cancer Prevention and Therapy, Department of Endoscopy, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin, China
| | - W Lang
- Tianjin Medical University, Tianjin, China
| | - H Yang
- Tianjin Medical University, Tianjin, China
| | - J Tian
- Xiangya School of Medicine, Central South University, Changsha, China
| | - W Sun
- Tianjin Medical University, Tianjin, China
| | - B Pekbay
- Erasmus University Rotterdam, Rotterdam, Netherlands
| | - Y Lin
- Tianjin Medical University, Tianjin, China
| | - M Wang
- Tianjin Medical University, Tianjin, China
| | - B Cui
- Tianjin Medical University, Tianjin, China
| | - S Yang
- Xiangya School of Medicine, Central South University, Changsha, China
| | - H Li
- Department of Esophageal Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - L Luo
- Department of Radiation Oncology, Tumor Hospital, Xiangya School of Medicine of Central South University, Changsha, China
| | - H Guo
- Tianjin Medical University, Tianjin, China
| | - L Zhang
- Key Laboratory of Cancer Prevention and Therapy, Tianjin Lung Cancer Center, Department of Thoracic Surgery, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin, China
| |
Collapse
|
23
|
Liang J, Xue J, Tao X, Weng W, Cui B, Wang J, Jiang Y, Chen S. THE CONNECTION BETWEEN SOCIAL SUPPORT AND COGNITIVE FUNCTION AMONG ELDERS IN RURAL EAST CHINA. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- J. Liang
- Zhejiang University, Hangzhou, Zhejiang, China
| | - J. Xue
- Zhejiang University, Hangzhou, Zhejiang, China
| | - X. Tao
- Zhejiang University, Hangzhou, Zhejiang, China
| | - W. Weng
- Zhejiang University, Hangzhou, Zhejiang, China
| | - B. Cui
- Zhejiang University, Hangzhou, Zhejiang, China
| | - J. Wang
- Zhejiang University, Hangzhou, Zhejiang, China
| | - Y. Jiang
- Zhejiang University, Hangzhou, Zhejiang, China
| | - S. Chen
- Zhejiang University, Hangzhou, Zhejiang, China
| |
Collapse
|
24
|
Gao XJ, Qu YY, Liu XW, Zhu M, Ma CY, Jiao YL, Cui B, Chen ZJ, Zhao YR. Immune complexes induce TNF-α and BAFF production from U937 cells by HMGB1 and RAGE. Eur Rev Med Pharmacol Sci 2017; 21:1810-1819. [PMID: 28485798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
OBJECTIVE This study investigated the effects of immune complexes (ICs) on tumor necrosis factor α (TNF-α) and B cell-activating factor (BAFF) production from U937 cells and further explored the mechanism. MATERIALS AND METHODS U937 cells were incubated with necrosis supernatant or systemic lupus erythematosus (SLE) sera alone, or their combination. The expression of TNF-α and BAFF was determined by Real-time polymerase chain reaction and enzyme-linked immunosorbent assay. High mobility group box protein 1(HMGB1) A-box was produced by gene recombination. HMGB1 A-box and anti-receptor for advanced glycation end products (RAGE) antibody were adopted in the blocking experiments. The importance of DNA for cytokine induction was investigated by DNase treatment. RESULTS The combination of necrosis supernatant and SLE sera induced the expression of TNF-α and BAFF significantly increased compared to necrosis supernatant or SLE sera alone. Recombinant HMGB1 A-box protein was purified, and TNF-α and BAFF production, which were induced by this combination, was blocked via HMGB1 A-box and anti-RAGE antibody. Moreover, we found that DNA component is important for the immunostimulatory activity of this combination. CONCLUSIONS ICs containing DNA can promote TNF-α and BAFF production in U937 cells, and this process can be mediated by HMGB1 and RAGE. One possible mechanism of increasing BAFF production in SLE is proposed in this study whereby B cell activation, antibody production and ICs stimulated monocytes may create a vicious cycle that leads to B cell hyperactivity, which can be of importance for SLE etiopathogenesis.
Collapse
Affiliation(s)
- X-J Gao
- Center of Laboratory Medicine, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, China.
| | | | | | | | | | | | | | | | | |
Collapse
|
25
|
Yu J, Chen L, Cui B, Wu C, Choi MY, Chen Y, Zhang L, Rassenti LZ, Widhopf Ii GF, Kipps TJ. Cirmtuzumab inhibits Wnt5a-induced Rac1 activation in chronic lymphocytic leukemia treated with ibrutinib. Leukemia 2016; 31:1333-1339. [PMID: 27904138 PMCID: PMC5462858 DOI: 10.1038/leu.2016.368] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [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: 07/19/2016] [Revised: 10/24/2016] [Accepted: 11/04/2016] [Indexed: 12/15/2022]
Abstract
Signaling via the B cell receptor (BCR) plays an important role in the pathogenesis and progression of chronic lymphocytic leukemia (CLL). This is underscored by the clinical effectiveness of ibrutinib, an inhibitor of Bruton's tyrosine kinase (BTK) that can block BCR-signaling. However, ibrutinib cannot induce complete responses (CR) or durable remissions without continued therapy, suggesting alternative pathways also contribute to CLL growth/survival that are independent of BCR-signaling. ROR1 is a receptor for Wnt5a, which can promote activation of Rac1 to enhance CLL-cell proliferation and survival. In this study, we found that CLL cells of patients treated with ibrutinib had activated Rac1. Moreover, Wnt5a could induce Rac1 activation and enhance proliferation of CLL cells treated with ibrutinib at concentrations that were effective in completely inhibiting BTK and BCR-signaling. Wnt5a-induced Rac1 activation could be blocked by cirmtuzumab (UC-961), an anti-ROR1 mAb. We found that treatment with cirmtuzumab and ibrutinib was significantly more effective than treatment with either agent alone in clearing leukemia cells in vivo. This study indicates that cirmtuzumab may enhance the activity of ibrutinib in the treatment of patients with CLL or other ROR1+ B-cell malignancies.
Collapse
Affiliation(s)
- J Yu
- Moores Cancer Center, University of California, San Diego, La Jolla, CA 92093, USA
| | - L Chen
- Moores Cancer Center, University of California, San Diego, La Jolla, CA 92093, USA
| | - B Cui
- Moores Cancer Center, University of California, San Diego, La Jolla, CA 92093, USA
| | - Christina Wu
- Moores Cancer Center, University of California, San Diego, La Jolla, CA 92093, USA
| | - M Y Choi
- Moores Cancer Center, University of California, San Diego, La Jolla, CA 92093, USA
| | - Y Chen
- Moores Cancer Center, University of California, San Diego, La Jolla, CA 92093, USA
| | - L Zhang
- Moores Cancer Center, University of California, San Diego, La Jolla, CA 92093, USA
| | - L Z Rassenti
- Moores Cancer Center, University of California, San Diego, La Jolla, CA 92093, USA
| | - G F Widhopf Ii
- Moores Cancer Center, University of California, San Diego, La Jolla, CA 92093, USA
| | - T J Kipps
- Moores Cancer Center, University of California, San Diego, La Jolla, CA 92093, USA
| |
Collapse
|
26
|
Cui B, Zhang Y, Wang F, Jamali MA, Wei L, Peng Z. Technical note: The effect of carcass deboning technique on the meat quality of cattle. J Anim Sci 2016; 94:4427-4433. [PMID: 27898874 DOI: 10.2527/jas.2016-0550] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The objective of this study was to evaluate the effects of the suspended carcass deboning technique on the meat attributes of electrically stimulated cattle ( = 10). A carcass deboning technique that removes the main bones without breakdown of the entire carcass was applied to suspended sides soon after slaughter. After 3 d of aging at 4°C, the shear force of the rectus femoris, longissimus lumborum, and supraspinatus muscles of the suspended carcass deboning technique was reduced by 27%, 29%, and 23% ( < 0.05), respectively. The carcass deboning technique increased the sarcomere length by 14%, 10%, and 16% ( < 0.05), and the myofibril fragmentation index was increased by 10%, 5%, and 13% ( < 0.05), respectively, for the same 3 muscles. There was no difference in the pH, color, or cooking loss between the treatment and the control ( > 0.05). The carcass deboning technique could be a viable approach to improve beef tenderness with a relatively short aging duration.
Collapse
|
27
|
Amigo N, Zhang Q, Amadio A, Zhang Q, Silva WM, Cui B, Chen Z, Larzabal M, Bei J, Cataldi A. Overexpressed Proteins in Hypervirulent Clade 8 and Clade 6 Strains of Escherichia coli O157:H7 Compared to E. coli O157:H7 EDL933 Clade 3 Strain. PLoS One 2016; 11:e0166883. [PMID: 27880834 PMCID: PMC5120812 DOI: 10.1371/journal.pone.0166883] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2016] [Accepted: 11/04/2016] [Indexed: 11/19/2022] Open
Abstract
Escherichia coli O157:H7 is responsible for severe diarrhea and hemolytic uremic syndrome (HUS), and predominantly affects children under 5 years. The major virulence traits are Shiga toxins, necessary to develop HUS and the Type III Secretion System (T3SS) through which bacteria translocate effector proteins directly into the host cell. By SNPs typing, E. coli O157:H7 was separated into nine different clades. Clade 8 and clade 6 strains were more frequently associated with severe disease and HUS. In this study, we aimed to identify differentially expressed proteins in two strains of E. coli O157:H7 (clade 8 and clade 6), obtained from cattle and compared them with the well characterized reference EDL933 strain (clade 3). Clade 8 and clade 6 strains show enhanced pathogenicity in a mouse model and virulence-related properties. Proteins were extracted and analyzed using the TMT-6plex labeling strategy associated with two dimensional liquid chromatography and mass spectrometry in tandem. We detected 2241 proteins in the cell extract and 1787 proteins in the culture supernatants. Attention was focused on the proteins related to virulence, overexpressed in clade 6 and 8 strains compared to EDL933 strain. The proteins relevant overexpressed in clade 8 strain were the curli protein CsgC, a transcriptional activator (PchE), phage proteins, Stx2, FlgM and FlgD, a dienelactone hydrolase, CheW and CheY, and the SPATE protease EspP. For clade 6 strain, a high overexpression of phage proteins was detected, mostly from Stx2 encoding phage, including Stx2, flagellin and the protease TagA, EDL933_p0016, dienelactone hydrolase, and Haemolysin A, amongst others with unknown function. Some of these proteins were analyzed by RT-qPCR to corroborate the proteomic data. Clade 6 and clade 8 strains showed enhanced transcription of 10 out of 12 genes compared to EDL933. These results may provide new insights in E. coli O157:H7 mechanisms of pathogenesis.
Collapse
Affiliation(s)
- Natalia Amigo
- Institute of Biotechnology, CICVyA, National Institute of Agricultural Technology. Hurlingham, Buenos Aires, Argentina
| | - Qi Zhang
- AGRO-Biological Gene Research Center, Guangdong `Academy of Agricultural Sciences (GDAAS), Guangzhou, China
| | - Ariel Amadio
- Rafaela Experimental Station, National Institute of Agricultural Technology. Rafaela, Santa Fe, Argentina
| | - Qunjie Zhang
- AGRO-Biological Gene Research Center, Guangdong `Academy of Agricultural Sciences (GDAAS), Guangzhou, China
| | - Wanderson M. Silva
- Institute of Biotechnology, CICVyA, National Institute of Agricultural Technology. Hurlingham, Buenos Aires, Argentina
| | - Baiyuan Cui
- AGRO-Biological Gene Research Center, Guangdong `Academy of Agricultural Sciences (GDAAS), Guangzhou, China
| | - Zhongjian Chen
- AGRO-Biological Gene Research Center, Guangdong `Academy of Agricultural Sciences (GDAAS), Guangzhou, China
| | - Mariano Larzabal
- Institute of Biotechnology, CICVyA, National Institute of Agricultural Technology. Hurlingham, Buenos Aires, Argentina
| | - Jinlong Bei
- AGRO-Biological Gene Research Center, Guangdong `Academy of Agricultural Sciences (GDAAS), Guangzhou, China
- * E-mail:
| | - Angel Cataldi
- Institute of Biotechnology, CICVyA, National Institute of Agricultural Technology. Hurlingham, Buenos Aires, Argentina
| |
Collapse
|
28
|
Liu Y, Ran R, Hu C, Cui B, Xu Y, Liu H, Quan S, Li D, Li X, Wu Y, Zhang D, Shi J. The metabolic responses of HepG2 cells to the exposure of mycotoxin deoxynivalenol. WORLD MYCOTOXIN J 2016. [DOI: 10.3920/wmj2015.1981] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
As the number of reported deoxynivalenol (DON) contamination incidents increased steadily over the past decades, there has been a widespread interest in understanding the cellular mechanisms of the toxicological effects of DON using in vitro systems and omics technologies. The present investigation was conducted to understand the metabolomic changes in human hepatocellular carcinoma cells (HepG2) exposed to 10 μM DON for short term (4 h) and long term (12 h) periods, using a non-targeted metabolomics approach. Our results revealed a remarkable metabolic shift from short term to long term exposure to DON in HepG2 cells. Our metabolomics data also confirmed the role of DON induced oxidative stress in DON toxicity. Coupled with pattern recognition and pathway analysis, effects of DON on redox homeostasis, energy balance, lipid metabolism, and potential toxicological mechanisms were discussed, which would facilitate further studies on the risk assessment of the dietary mycotoxin DON.
Collapse
Affiliation(s)
- Y. Liu
- School of Life Sciences and Biotechnology, Shanghai Jiao Tong University – University of Adelaide Joint Centre for Agriculture and Health, Shanghai Jiao Tong University, Shanghai 200240, China P.R
| | - R. Ran
- School of Life Sciences and Biotechnology, Shanghai Jiao Tong University – University of Adelaide Joint Centre for Agriculture and Health, Shanghai Jiao Tong University, Shanghai 200240, China P.R
- Faculty of Agricultural and Environmental Sciences, McGill University, H9X 3V9 Montreal, Canada
| | - C. Hu
- School of Life Sciences and Biotechnology, Shanghai Jiao Tong University – University of Adelaide Joint Centre for Agriculture and Health, Shanghai Jiao Tong University, Shanghai 200240, China P.R
| | - B. Cui
- School of Life Sciences and Biotechnology, Shanghai Jiao Tong University – University of Adelaide Joint Centre for Agriculture and Health, Shanghai Jiao Tong University, Shanghai 200240, China P.R
- Shanghai Hengrui Pharmaceutical Co. Ltd, Shanghai 200245, China P.R
| | - Y. Xu
- School of Life Sciences and Biotechnology, Shanghai Jiao Tong University – University of Adelaide Joint Centre for Agriculture and Health, Shanghai Jiao Tong University, Shanghai 200240, China P.R
- College of Education, Shanghai Normal University, Shanghai 201418, China P.R
| | - H. Liu
- School of Life Sciences and Biotechnology, Shanghai Jiao Tong University – University of Adelaide Joint Centre for Agriculture and Health, Shanghai Jiao Tong University, Shanghai 200240, China P.R
| | - S. Quan
- School of Life Sciences and Biotechnology, Shanghai Jiao Tong University – University of Adelaide Joint Centre for Agriculture and Health, Shanghai Jiao Tong University, Shanghai 200240, China P.R
| | - D. Li
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China P.R
| | - X. Li
- Key Laboratory of Food Safety Risk Assessment of Ministry of Health, China National Center for Food Safety Risk Assessment, Beijing 100021, China P.R
| | - Y. Wu
- Key Laboratory of Food Safety Risk Assessment of Ministry of Health, China National Center for Food Safety Risk Assessment, Beijing 100021, China P.R
| | - D. Zhang
- School of Life Sciences and Biotechnology, Shanghai Jiao Tong University – University of Adelaide Joint Centre for Agriculture and Health, Shanghai Jiao Tong University, Shanghai 200240, China P.R
- Plant Genomics Center, School of Agriculture, Food and Wine, University of Adelaide, Waite Campus, Urrbrae 5064, Australia
| | - J. Shi
- School of Life Sciences and Biotechnology, Shanghai Jiao Tong University – University of Adelaide Joint Centre for Agriculture and Health, Shanghai Jiao Tong University, Shanghai 200240, China P.R
| |
Collapse
|
29
|
Gao J, Fu H, Zhou X, Chen Z, Luo Y, Cui B, Chen G, Liu J. Comparative proteomic analysis of seed embryo proteins associated with seed storability in rice (Oryza sativa L) during natural aging. Plant Physiol Biochem 2016; 103:31-44. [PMID: 26950923 DOI: 10.1016/j.plaphy.2016.02.026] [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] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Revised: 02/01/2016] [Accepted: 02/17/2016] [Indexed: 05/19/2023]
Abstract
Seed storability is considered an important trait in rice breeding; however, the underlying regulating mechanisms remain largely unknown. Here, we carried out a physiological and proteomic study to identify proteins possibly related to seed storability under natural conditions. Two hybrid cultivars, IIYou998 (IIY998) and BoYou998 (BY998), were analyzed in parallel because they share the same restorer line but have significant differences in seed storability. After a 2-year storage period, the germination percentage of IIY998 was significantly lower than that of BY998, whereas the level of malondialdehyde was reversed, indicating that IIY998 seeds may suffer from more severe damage than BY998 during storage. However, we did not find correlation between activities of antioxidant enzymes of superoxide dismutase, peroxidase, and catalase and seed storability. We identified 78 embryo proteins in embryo whose abundance varied more than 3-fold different during storage or between IIY998 and BY998. More proteins changed in abundance in IIY998 embryo (67 proteins) during storage than in BY998 (10 proteins). Several redox regulation proteins, mainly glutathione-related proteins, exhibited different degree of change during storage between BY998 and IIY998 and might play an important role protecting embryo proteins from oxidation. In addition, some disease/defense proteins, including DNA-damage-repair/toleration proteins, and a putative late embryogenesis abundant protein were significantly downregulated in IIY998, whereas their levels did not change in BY998, indicating that they might be correlated with seed storability. Further studies on these candidate seed storage proteins might help improve our understanding of seed aging.
Collapse
Affiliation(s)
- Jiadong Gao
- Agro-biological Gene Research Center, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, China; Hunan Agricultural University, Changsha, 410128, China
| | - Hua Fu
- Rice Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, China
| | - Xinqiao Zhou
- Rice Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, China
| | - Zhongjian Chen
- Agro-biological Gene Research Center, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, China
| | - Yi Luo
- Agro-biological Gene Research Center, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, China
| | - Baiyuan Cui
- Agro-biological Gene Research Center, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, China
| | - Guanghui Chen
- Hunan Agricultural University, Changsha, 410128, China.
| | - Jun Liu
- Agro-biological Gene Research Center, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, China.
| |
Collapse
|
30
|
Liu X, Jiao Y, Cui B, Gao X, Xu J, Zhao Y. The potential protective role of hepatitis B virus infection in pristane-induced lupus in mice. Lupus 2016; 25:1180-9. [PMID: 27125291 DOI: 10.1177/0961203316631637] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Accepted: 01/13/2016] [Indexed: 12/19/2022]
Abstract
OBJECTIVE The objective of this study was to investigate whether hepatitis B virus (HBV) infection plays a role in the regulation of autoimmunity for systemic lupus erythematosus (SLE). METHOD A total of 21 female BALB/c mice and 21 female HBV transgenic BALB/c mice aged two months were randomly divided into four groups: BALB/c mice, HBV(Tg) mice, pristane-injected BALB/c mice, and pristane-injected HBV(Tg) mice. BALB/c mice and HBV(Tg) mice were given an intraperitoneal injection of 0.5 ml normal saline, and the mice in the other two groups were given an intraperitoneal injection of 0.5 ml pristane. ANA and anti-dsDNA levels in serum were detected by indirect immunofluorescence. Interleukin 2 (IL-2), IL-4, IL-6, IL-17, and TNF-α were measured by Luminex technology. The serum BAFF level was measured using an Elisa kit. Twenty-four weeks after pristane administration, kidneys were removed, dissected, and stained with hematoxylin and eosin and periodic-acid Schiff. RESULT At six months after injecting, the ANA titers in pristane-injected HBV(Tg) mice were significantly lower than pristane-injected BALB/c mice. IL-17, TNF-α, and BAFF levels were significantly higher in pristane-injected BALB/c mice than BALB/c mice and pristane-injected HBV(Tg) mice. IL-2, IL-4, and IL-6 levels were much higher in pristane-injected HBV(Tg) mice than pristane-injected BALB/c mice. In pristane-injected HBV(Tg) mice and HBV(Tg) mice, fewer glomerulonephritis changes were found in the kidneys. CONCLUSIONS Our results showed that the incidence of SLE was much lower in HBV(Tg) mice, and that HBV infection helped the SLE mice survive high levels of inflammatory cytokines and severe renal damage. All these findings demonstrated the protective role of HBV in SLE patients via the immunoregulatory networks of the cytokines.
Collapse
Affiliation(s)
- X Liu
- Central Laboratory, Shandong Provincial Hospital affiliated to Shandong University, Jinan, PR China
| | - Y Jiao
- Central Laboratory, Shandong Provincial Hospital affiliated to Shandong University, Jinan, PR China
| | - B Cui
- Central Laboratory, Shandong Provincial Hospital affiliated to Shandong University, Jinan, PR China
| | - X Gao
- Center of Laboratory Medicine, Yuhuangding Hospital, Yantai, PR China
| | - J Xu
- Immune Cell Research Laboratory, School of Medicine, Tsinghua University, Beijing, PR China
| | - Y Zhao
- Central Laboratory, Shandong Provincial Hospital affiliated to Shandong University, Jinan, PR China
| |
Collapse
|
31
|
Cui B, Smooker PM, Rouch DA, Deighton MA. Effects of erythromycin on the phenotypic and genotypic biofilm expression in two clinical Staphylococcus capitis subspecies and a functional analysis of Ica proteins in S. capitis. J Med Microbiol 2016; 65:257. [PMID: 26973289 DOI: 10.1099/jmm.0.000223] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Affiliation(s)
- B Cui
- J Med Microbiol, 64, part 6, 591-604
| | | | - D A Rouch
- J Med Microbiol, 64, part 6, 591-604
| | | |
Collapse
|
32
|
Zhang LZ, Wang ZF, Huang B, Cui B, Wang Z, Du SX, Gao HJ, Liu F. Intrinsic Two-Dimensional Organic Topological Insulators in Metal-Dicyanoanthracene Lattices. Nano Lett 2016; 16:2072-2075. [PMID: 26866565 DOI: 10.1021/acs.nanolett.6b00110] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We predict theoretical existence of intrinsic two-dimensional organic topological insulator (OTI) states in Cu-dicyanoanthracene (DCA) lattice, a system that has also been grown experimentally on Cu substrate, based on first-principle density functional theory calculations. The pz-orbital Kagome bands having a Dirac point lying exactly at the Fermi level are found in the freestanding Cu-DCA lattice. The tight-binding model analysis, the calculated Chern numbers, and the semi-infinite Dirac edge states within the spin-orbit coupling gaps all confirm its intrinsic topological properties. The intrinsic TI states are found to originate from a proper number of electrons filling of the hybridized bands from Cu atomic and DCA molecular orbitals based on which similar lattices containing noble metal atoms (Au and Cu) and those molecules with two CN groups (DCA and cyanogens) are all predicted to be intrinsic OTIs.
Collapse
Affiliation(s)
- L Z Zhang
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China , Chengdu 610054, China
- Institute of Physics, Chinese Academy of Sciences , Beijing 100190, China
- Department of Materials Science and Engineering, University of Utah , Salt Lake City, Utah 84112, United States
| | - Z F Wang
- Department of Materials Science and Engineering, University of Utah , Salt Lake City, Utah 84112, United States
- Hefei National Laboratory for Physical Sciences at the Microscale and Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China , Hefei, Anhui 230026, China
| | - B Huang
- Department of Materials Science and Engineering, University of Utah , Salt Lake City, Utah 84112, United States
| | - B Cui
- Department of Materials Science and Engineering, University of Utah , Salt Lake City, Utah 84112, United States
| | - Zhiming Wang
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China , Chengdu 610054, China
| | - S X Du
- Institute of Physics, Chinese Academy of Sciences , Beijing 100190, China
| | - H-J Gao
- Institute of Physics, Chinese Academy of Sciences , Beijing 100190, China
| | - Feng Liu
- Department of Materials Science and Engineering, University of Utah , Salt Lake City, Utah 84112, United States
- Collaborative Innovation Center of Quantum Matter, Beijing 100084, China
| |
Collapse
|
33
|
Zhu X, Pan H, Yang Z, Cui B, Zhang D, Ba-Thein W. Self-medication practices with antibiotics among Chinese university students. Public Health 2016; 130:78-83. [PMID: 26008209 DOI: 10.1016/j.puhe.2015.04.005] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2014] [Revised: 03/13/2015] [Accepted: 04/12/2015] [Indexed: 02/05/2023]
Abstract
OBJECTIVES Self-medication with antibiotics (SMA) is a serious global health problem. We sought to investigate SMA behaviors and risk factors among Chinese university students, and further explore the association between SMA practices and adverse drug events (ADEs). STUDY DESIGN Cross-sectional study. METHODS An online survey was conducted at Jiangsu University (JSU) in eastern China in July 2011 using a pretested questionnaire. RESULTS Out of 2608 website visitors, 1086 participated in the survey (response rate: 41.6%), 426 respondents were excluded for not being a JSU student or repeat participation, 660 (2.2% of JSU students) were included in analysis, and 316 students (47.9%) had a lifetime history of SMA. Among self-treated students, 43.5% believed that antibiotic was suitable for viral infections, 65.9% had more than one SMA episode in the previous year, 73.5% self-medicated with at least two different antibiotics, 57.1% and 64.4% changed antibiotic dosage and antibiotics during the course, respectively. Female gender, older age, and prior knowledge of antibiotics (PKA) were identified as independent risk factors of SMA. There was no difference between students with and without PKA regarding SMA frequency, use of polyantibiotics, and switching antibiotic dosage or antibiotics. ADEs happened to 13.3% of self-medicated students. Frequent change of dosage and simultaneous use of the same antibiotic with different names were independent risk practices associated with an ADE. CONCLUSIONS Our findings substantiate high SMA prevalence among Chinese university students. Older age and PKA are independent SMA risk factors common to Chinese university students and female gender is exclusive SMA risk factor for JSU students. Poor SMA practices are associated with ADEs. Strict regulations on antibiotic sales and public education reinforced by further health care reform are recommended.
Collapse
Affiliation(s)
- X Zhu
- Medical Simulation Center, School of Clinical Medicine, Jiangsu University, Zhenjiang, Jiangsu, 212013, PR China.
| | - H Pan
- Shantou-Oxford Clinical Research Unit, Shantou University Medical College, Shantou, Guangdong, 515041, PR China.
| | - Z Yang
- Shantou-Oxford Clinical Research Unit, Shantou University Medical College, Shantou, Guangdong, 515041, PR China.
| | - B Cui
- Pediatric Department, The First Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, 515041, PR China.
| | - D Zhang
- Research Center of Translational Medicine, The Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, 515041, PR China.
| | - W Ba-Thein
- Shantou-Oxford Clinical Research Unit, Shantou University Medical College, Shantou, Guangdong, 515041, PR China; Department of Microbiology and Immunology, Shantou University Medical College, Shantou, Guangdong, 515041, PR China.
| |
Collapse
|
34
|
Li F, Song C, Wang YY, Cui B, Mao HJ, Peng JJ, Li SN, Wang GY, Pan F. Tilt engineering of exchange coupling at G-type SrMnO3/(La,Sr)MnO3 interfaces. Sci Rep 2015; 5:16187. [PMID: 26531154 PMCID: PMC4632028 DOI: 10.1038/srep16187] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2015] [Accepted: 10/09/2015] [Indexed: 11/09/2022] Open
Abstract
With the recent realization of hybrid improper ferroelectricity and room-temperature multiferroic by tilt engineering, "functional" octahedral tilting has become a novel concept in multifunctional perovskite oxides, showing great potential for property manipulation and device design. However, the control of magnetism by octahedral tilting has remained a challenging issue. Here a qualitative and quantitative tilt engineering of exchange coupling, one of the magnetic properties, is demonstrated at compensated G-type antiferromagnetic/ferromagnetic (SrMnO3/La2/3Sr1/3MnO3) interfaces. According to interfacial Hamiltonian, exchange bias (EB) in this system originates from an in-plane antiphase rotation (a(-)) in G-type antiferromagnetic layer. Based on first-principles calculation, tilt patterns in SrMnO3 are artificially designed in experiment with different epitaxial strain and a much stronger EB is attained in the tensile heterostructure than the compressive counterpart. By controlling the magnitude of octahedral tilting, the manipulation of exchange coupling is even performed in a quantitative manner, as expected in the theoretical estimation. This work realized the combination of tilt engineering and exchange coupling, which might be significant for the development of multifunctional materials and antiferromagnetic spintronics.
Collapse
Affiliation(s)
- F Li
- Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - C Song
- Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Y Y Wang
- Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - B Cui
- Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - H J Mao
- Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - J J Peng
- Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - S N Li
- Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - G Y Wang
- Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - F Pan
- Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| |
Collapse
|
35
|
Tee BCK, Chortos A, Berndt A, Nguyen AK, Tom A, McGuire A, Lin ZC, Tien K, Bae WG, Wang H, Mei P, Chou HH, Cui B, Deisseroth K, Ng TN, Bao Z. A skin-inspired organic digital mechanoreceptor. Science 2015; 350:313-6. [DOI: 10.1126/science.aaa9306] [Citation(s) in RCA: 591] [Impact Index Per Article: 65.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
|
36
|
Rosenbohm A, Liu M, Nagel G, Cui B, Li X, Fan D, Huang X, Rothenbacher D, Cui L, Ludolph A, ALS Swabia Registry Study Group, Chinese ALS Association. Comparative phenotypical differences of Amyotrophic Lateral Sclerosis (ALS) in Germany and China. J Neurol Sci 2015. [DOI: 10.1016/j.jns.2015.08.788] [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: 11/25/2022]
|
37
|
Mao HJ, Song C, Xiao LR, Gao S, Cui B, Peng JJ, Li F, Pan F. Unconventional resistive switching behavior in ferroelectric tunnel junctions. Phys Chem Chem Phys 2015; 17:10146-50. [DOI: 10.1039/c5cp00421g] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An unconventional resistive switching behavior is observed in ferroelectric tunnel junctions, which builds a bridge between ferroelectric tunnel junctions and resistive random access memory devices.
Collapse
Affiliation(s)
- H. J. Mao
- School of Materials Science and Engineering
- Central South University
- Changsha 410083
- China
- Key Laboratory of Advanced Materials (MOE)
| | - C. Song
- Key Laboratory of Advanced Materials (MOE)
- School of Materials Science and Engineering
- Tsinghua University
- Beijing 100084
- China
| | - L. R. Xiao
- School of Materials Science and Engineering
- Central South University
- Changsha 410083
- China
| | - S. Gao
- Key Laboratory of Advanced Materials (MOE)
- School of Materials Science and Engineering
- Tsinghua University
- Beijing 100084
- China
| | - B. Cui
- Key Laboratory of Advanced Materials (MOE)
- School of Materials Science and Engineering
- Tsinghua University
- Beijing 100084
- China
| | - J. J. Peng
- Key Laboratory of Advanced Materials (MOE)
- School of Materials Science and Engineering
- Tsinghua University
- Beijing 100084
- China
| | - F. Li
- Key Laboratory of Advanced Materials (MOE)
- School of Materials Science and Engineering
- Tsinghua University
- Beijing 100084
- China
| | - F. Pan
- Key Laboratory of Advanced Materials (MOE)
- School of Materials Science and Engineering
- Tsinghua University
- Beijing 100084
- China
| |
Collapse
|
38
|
Zhang J, Cao K, Wang XS, Cui B. Metal-carbonyl organometallic polymers, PFpP, as resists for high-resolution positive and negative electron beam lithography. Chem Commun (Camb) 2015; 51:17592-5. [DOI: 10.1039/c5cc07117h] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [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
Metal-carbonyl organometallic polymers, PFpP, can function as high-resolution resists for electron beam lithography.
Collapse
Affiliation(s)
- J. Zhang
- Department of Electrical and Computer Engineering
- Waterloo Institute for Nanotechnology (WIN)
- University of Waterloo
- Waterloo
- Canada
| | - K. Cao
- Department of Chemistry
- Waterloo Institute for Nanotechnology (WIN)
- University of Waterloo
- Waterloo
- Canada
| | - X. S. Wang
- Department of Chemistry
- Waterloo Institute for Nanotechnology (WIN)
- University of Waterloo
- Waterloo
- Canada
| | - B. Cui
- Department of Electrical and Computer Engineering
- Waterloo Institute for Nanotechnology (WIN)
- University of Waterloo
- Waterloo
- Canada
| |
Collapse
|
39
|
Cui B, Wang L, Xiong X, Li J. Had the Individual Medical Burden of Basic Health Insurance Participants Really Been Alleviated in 2009-2012? Value Health 2014; 17:A721. [PMID: 27202558 DOI: 10.1016/j.jval.2014.08.022] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Affiliation(s)
- B Cui
- Peking University, Beijing, China
| | - L Wang
- China Health Insurance Research Association, Beijing, China
| | - X Xiong
- China Health Insurance Research Association, Beijing, China
| | - J Li
- China Health Insurance Research Association, Beijing, China
| |
Collapse
|
40
|
Cui B, Song C, Wang GY, Mao HJ, Zeng F, Pan F. Strain engineering induced interfacial self-assembly and intrinsic exchange bias in a manganite perovskite film. Sci Rep 2014; 3:2542. [PMID: 23985971 PMCID: PMC3756339 DOI: 10.1038/srep02542] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2013] [Accepted: 08/14/2013] [Indexed: 01/26/2023] Open
Abstract
The control of complex oxide heterostructures at atomic level generates a rich spectrum of exotic properties and unexpected states at the interface between two separately prepared materials. The frustration of magnetization and conductivity of manganite perovskite at surface/interface which is inimical to their device applications, could also flourish in tailored functionalities in return. Here we prove that the exchange bias (EB) effect can unexpectedly emerge in a (La,Sr)MnO3 (LSMO) “single” film when large compressive stress imposed through a lattice mismatched substrate. The intrinsic EB behavior is directly demonstrated to be originating from the exchange coupling between ferromagnetic LSMO and an unprecedented LaSrMnO4-based spin glass, formed under a large interfacial strain and subsequent self-assembly. The present results not only provide a strategy for producing a new class of delicately functional interface by strain engineering, but also shed promising light on fabricating the EB part of spintronic devices in a single step.
Collapse
Affiliation(s)
- B Cui
- Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | | | | | | | | | | |
Collapse
|
41
|
Yu J, Zhao C, Chong F, Cao Y, Subhan F, Cui B, Tang S, Yuan C, Zeng J, Yan Z. A Simple, Rapid and Eco-Friendly Approach for the Analysis of Aromatic Amines in Environmental Water Using Single-Drop Microextraction-Gas Chromatography. J Chromatogr Sci 2014; 53:360-5. [DOI: 10.1093/chromsci/bmu036] [Citation(s) in RCA: 3] [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: 11/12/2022]
|
42
|
Cui B, Song C, Li F, Wang GY, Mao HJ, Peng JJ, Zeng F, Pan F. Tuning the entanglement between orbital reconstruction and charge transfer at a film surface. Sci Rep 2014; 4:4206. [PMID: 24569650 PMCID: PMC3935207 DOI: 10.1038/srep04206] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2013] [Accepted: 02/11/2014] [Indexed: 12/21/2022] Open
Abstract
The interplay between orbital, charge, spin, and lattice degrees of freedom is at the core of correlated oxides. This is extensively studied at the interface of heterostructures constituted of two-layer or multilayer oxide films. Here, we demonstrate the interactions between orbital reconstruction and charge transfer in the surface regime of ultrathin (La,Sr)MnO3, which is a model system of correlated oxides. The interactions are manipulated in a quantitative manner by surface symmetry-breaking and epitaxial strain, both tensile and compressive. The established charge transfer, accompanied by the formation of oxygen vacancies, provides a conceptually novel vision for the long-term problem of manganites—the severe surface/interface magnetization and conductivity deterioration. The oxygen vacancies are then purposefully tuned by cooling oxygen pressure, markedly improving the performances of differently strained films. Our findings offer a broad opportunity to tailor and benefit from the entanglements between orbit, charge, spin, and lattice at the surface of oxide films.
Collapse
Affiliation(s)
- B Cui
- Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - C Song
- Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - F Li
- Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - G Y Wang
- Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - H J Mao
- Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - J J Peng
- Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - F Zeng
- Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - F Pan
- Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| |
Collapse
|
43
|
Ma Y, Cui B, Ma R, Tang B, Chen L, Huang Q, Jiang W. The beam diagnostic instruments in Beijing radioactive ion-beam facilities isotope separator on-line. Rev Sci Instrum 2014; 85:02A716. [PMID: 24593450 DOI: 10.1063/1.4830035] [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] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The beam diagnostic instruments for Beijing Radioactive Ion-beam Facilities Isotope Separator On-Line are introduced [B. Q. Cui, Z. H. Peng, Y. J. Ma, R. G. Ma, B. Tang, T. Zhang, and W. S. Jiang, Nucl. Instrum. Methods 266, 4113 (2008); T. J. Zhang, X. L. Guan, and B. Q. Cui, in Proceedings of APAC 2004, Gyeongju, Korea, 2004, http://www.jacow.org, p. 267]. For low intensity ion beam [30-300 keV/1 pA-10 μA], the beam profile monitor, the emittance measurement unit, and the analyzing slit will be installed. For the primary proton beam [100 MeV/200 μA], the beam profile scanner will be installed. For identification of the nuclide, a beam identification unit will be installed. The details of prototype of the beam diagnostic units and some experiment results will be described in this article.
Collapse
Affiliation(s)
- Y Ma
- China Institute of Atomic Energy, Beijing 102413, China
| | - B Cui
- China Institute of Atomic Energy, Beijing 102413, China
| | - R Ma
- China Institute of Atomic Energy, Beijing 102413, China
| | - B Tang
- China Institute of Atomic Energy, Beijing 102413, China
| | - L Chen
- China Institute of Atomic Energy, Beijing 102413, China
| | - Q Huang
- China Institute of Atomic Energy, Beijing 102413, China
| | - W Jiang
- China Institute of Atomic Energy, Beijing 102413, China
| |
Collapse
|
44
|
Cui B, Huang Q, Tang B, Ma R, Chen L, Ma Y. An ion source module for the Beijing Radioactive Ion-beam Facility. Rev Sci Instrum 2014; 85:02B911. [PMID: 24593616 DOI: 10.1063/1.4832066] [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] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
An ion source module is developed for Beijing Radioactive Ion-beam Facility. The ion source module is designed to meet the requirements of remote handling. The connection and disconnection of the electricity, cooling and vacuum between the module and peripheral units can be executed without on-site manual work. The primary test of the target ion source has been carried out and a Li(+) beam has been extracted. Details of the ion source module and its primary test results are described.
Collapse
Affiliation(s)
- B Cui
- China Institute of Atomic Energy, Beijing, China
| | - Q Huang
- China Institute of Atomic Energy, Beijing, China
| | - B Tang
- China Institute of Atomic Energy, Beijing, China
| | - R Ma
- China Institute of Atomic Energy, Beijing, China
| | - L Chen
- China Institute of Atomic Energy, Beijing, China
| | - Y Ma
- China Institute of Atomic Energy, Beijing, China
| |
Collapse
|
45
|
Tang B, Ma R, Ma Y, Chen L, Huang Q, Liang H, Cui B, Jiang W. The development of the high intensity electron cyclotron resonance ion source at China Institute of Atomic Energy. Rev Sci Instrum 2014; 85:02A911. [PMID: 24593490 DOI: 10.1063/1.4826690] [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] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
High-current microwave ion source has been under development over 15 years for accelerator driven sub-critical system research at China Institute of Atomic Energy, and the beam intensity higher than 140 mA proton beam is produced by this ion source with long lifetime and high reliability. The emittance of high intensity continue-wave and pulse beam is measured on a test-bench in the laboratory. Based on the good performance of this proton ion source, a new 120 mA deuterium ion source is proposed for a high intensity neutron generator. The ion source details and status will be presented.
Collapse
Affiliation(s)
- B Tang
- China Institute of Atomic Energy, P.O. Box 275 (27), Beijing 102413, China
| | - R Ma
- China Institute of Atomic Energy, P.O. Box 275 (27), Beijing 102413, China
| | - Y Ma
- China Institute of Atomic Energy, P.O. Box 275 (27), Beijing 102413, China
| | - L Chen
- China Institute of Atomic Energy, P.O. Box 275 (27), Beijing 102413, China
| | - Q Huang
- China Institute of Atomic Energy, P.O. Box 275 (27), Beijing 102413, China
| | - H Liang
- China Institute of Atomic Energy, P.O. Box 275 (27), Beijing 102413, China
| | - B Cui
- China Institute of Atomic Energy, P.O. Box 275 (27), Beijing 102413, China
| | - W Jiang
- China Institute of Atomic Energy, P.O. Box 275 (27), Beijing 102413, China
| |
Collapse
|
46
|
Volotskova O, Osakada Y, Pratx G, Sun C, Cui B, Xing L. MO-D-141-07: X-Ray Activated Gold Nanoparticles for Tumor-Specific Molecular Imaging. Med Phys 2013. [DOI: 10.1118/1.4815254] [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: 11/07/2022] Open
|
47
|
Cui B, Song C, Wang YY, Yan WS, Zeng F, Pan F. Tuning of uniaxial magnetic anisotropy in amorphous CoFeB films. J Phys Condens Matter 2013; 25:106003. [PMID: 23389101 DOI: 10.1088/0953-8984/25/10/106003] [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] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
We demonstrate that the uniaxial magnetic anisotropy (UMA) of amorphous CoFeB films can be tuned by crystallinity and orbital moment ratio, combining the results of magnetization reversal and ferromagnetic resonance with high-resolution transmission electron microscopy, x-ray-absorption near-edge structure and x-ray magnetic circular dichroism. Isotropic polycrystalline buffers of tungsten (W), tantalum (Ta), and copper (Cu) between CoFeB and Si(100) substrates have direct and crucial bearing on the interfacial microstructure and orbital moment ratio. Compared with Ta and Cu buffer, CoFeB with W buffer exhibits obvious UMA and has lower crystallinity at the interface and higher orbital moment. Amorphous phase distributed homogeneously in CoFeB film grown on W buffer contributes to improve the easy-axis squareness with a sharp magnetization reversal. Our demonstrations not only realize effective tuning of UMA in amorphous CoFeB, but also provide an appealing alternative buffer (W) for CoFeB-based magnetic tunnel junctions.
Collapse
Affiliation(s)
- B Cui
- Key Laboratory of Advanced Materials, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, People's Republic of China
| | | | | | | | | | | |
Collapse
|
48
|
Wang YY, Song C, Cui B, Wang GY, Zeng F, Pan F. Room-temperature perpendicular exchange coupling and tunneling anisotropic magnetoresistance in an antiferromagnet-based tunnel junction. Phys Rev Lett 2012; 109:137201. [PMID: 23030116 DOI: 10.1103/physrevlett.109.137201] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2012] [Indexed: 06/01/2023]
Abstract
We investigate the exchange coupling between perpendicular anisotropy (PMA) Co/Pt and IrMn in-plane antiferromagnets (AFMs), as well as tunneling anisotropic magnetoresistance (TAMR) in [Pt/Co]/IrMn/AlO_{x}/Pt tunnel junctions, where Co/Pt magnetization drives rotation of AFM moments with the formation of exchange-spring twisting. When coupled with a PMA ferromagnet, the AFM moments partially rotate with out-of-plane magnetic fields, in contrast with being pinned along the easy direction of IrMn for in-plane fields. Because of the superior thermal tolerance of perpendicular exchange coupling and the stability of moments in ~6 nm-thick IrMn, TAMR gets significantly enhanced up to room temperature. Their use would advance the process towards practical AFM spintronics.
Collapse
Affiliation(s)
- Y Y Wang
- Laboratory of Advanced Materials, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | | | | | | | | | | |
Collapse
|
49
|
Ma CY, Ma JL, Jiao YL, Li JF, Wang LC, Yang QR, You L, Cui B, Chen ZJ, Zhao YR. The plasma level of soluble receptor for advanced glycation end products is decreased in patients with systemic lupus erythematosus. Scand J Immunol 2012; 75:614-22. [PMID: 22324318 DOI: 10.1111/j.1365-3083.2012.02691.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
In recent years, the role of high mobility group box-1 (HMGB1) protein and its receptors in autoimmune diseases has received increasing attention. It has been documented that HMGB1 is associated with disease activity in patients with systemic lupus erythematosus (SLE). This study was undertaken to determine the potential role of receptor for advanced glycation end products (RAGE), one receptor for HMGB1, in the pathogenesis of SLE. Plasma levels of soluble RAGE (sRAGE) from 105 patients with clinical diagnosis of SLE and 43 healthy controls were determined by ELISA. Associations between sRAGE levels and clinical, laboratory characteristics were assessed. The data showed that plasma levels of sRAGE in patients with SLE were significantly lower than those in healthy controls (HC) (P = 0.003). Plasma sRAGE in patients receiving short-period treatment showed an immediate decrease compared with the untreated patients (P = 0.023). In contrast, plasma sRAGE in patients receiving long-period treatment were significantly increased compared to those with short-period treatment (P = 0.000) and comparable with those in HC (P = 0.305). The significant decreased levels of sRAGE in patients with SLE suggest the potential association of RAGE signalling and SLE clinical pathology, whereas, long-period antilupus treatment may counteract the decreased sRAGE levels in patients with SLE.
Collapse
Affiliation(s)
- C-Y Ma
- Departments of Central Laboratory Pathology Rheumatology, Provincial Hospital Affiliated to Shandong University, Jinan, China
| | | | | | | | | | | | | | | | | | | |
Collapse
|
50
|
Zhang D, Pan H, Cui B, Law F, Farrar J, Ba-Thein W. Risk of sexually transmitted infections due to changing sexual attitude and behaviors and limited knowledge among college students in southern China. Int J Infect Dis 2012. [DOI: 10.1016/j.ijid.2012.05.397] [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] Open
|