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Zheng D, Yang Y, Wu C, Wang H, Liu S, Xu X, Zhang D, Li F, Ni J, Xu J, Jiang G. P2.11-11 Exosomal miRNAs as Diagnosis Biomarkers for Distinguishing Benign and Malignant Nodules in Non-Small Cell Lung Cancer. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1711] [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]
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Chernyak SA, Ivanov AS, Maslakov KI, Novotortsev RY, Ni J, Savilov SV, Lunin VV. Effect of Spark Plasma Sintering on the Composition, Structure, and Conductivity of Nitrogen-Doped Carbon Nanotubes Modified by Cobalt Nanoparticles. Russ J Phys Chem 2019. [DOI: 10.1134/s0036024419100042] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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53
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Lou H, Ni J, Yin Z, Shou H, Chen M. FDG PET/CT in Locally Advanced Squamous Cervical Cancer: Relationship between FDG Uptake and Treatment Prognosis. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.1718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Shou H, Ni J, Yin Z, Lou H. The Predictive Value of Pretreatment SUVmax and SCC-Antigen in Patients with Locally Advanced Squamous Cervical Cancer in FIGO 2018. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.1736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Lu J, Zhao J, Jia C, Zhou L, Cai Y, Ni J, Ma J, Zheng M, Lu A. FPR2 enhances colorectal cancer progression by promoting EMT process. Neoplasma 2019; 66:785-791. [PMID: 31288528 DOI: 10.4149/neo_2018_181123n890] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Accepted: 05/02/2019] [Indexed: 11/08/2022]
Abstract
Formyl peptide receptor-2 (FPR2) has been shown to promote various tumors, but its role in colorectal cancer (CRC) has not been clearly illuminated. The aim of this study was to investigate the effect of FPR2 interference on cell proliferation, migration, invasion, apoptosis, pro-angiogenesis of CRC cells, and also the mechanisms involved. Quantitative PCR assays were applied to assess the expression levels of FPR2 in CRC tissues. CRC cell line SW1116 was chosen to perform this study. We knocked down FPR2 gene by sh-RNA. Then, the cell proliferation was assayed by soft agar colony formation assay, the cell migration capacity was checked by wound healing assay, and cell invasion ability was detected by transwell assay. In addition, flow cytometric analysis was used to detect apoptosis, while endothelial tube formation assay was used to evaluate the effects of FPR2 on pro-angiogenesis in vitro. Tumorigenesis experiment in vivo was performed in nude mice. EMT-related proteins were studied by western blotting. Quantitative PCR demonstrated that FPR2 mRNA was highly expressed in the colorectal cancer tissues. SW1116 cells' capacities of proliferation, migration, invasion, anti-apoptosis and pro-angiogenesis were distinctly suppressed after silencing FPR2 in SW1116 by sh-RNA. Suppression FPR2 mRNA in SW1116 cells suppressed tumorigenicity in nude mice. The expression of proteins related to epithelial-mesenchymal transition (EMT) such as E-cadherin, N-cadherin, Snail, Slug and vimentin was changed after suppressing FPR2. In conclusion, our study demonstrated that FPR2 could promote CRC cells progression in vitro and in vivo that may relate to promoting EMT.
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Affiliation(s)
- J Lu
- Department of General Surgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Zhejiang University, Hangzhou, China
| | - J Zhao
- Shanghai Minimally Invasive Surgery Center, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - C Jia
- Department of General Surgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Zhejiang University, Hangzhou, China
| | - L Zhou
- Department of General Surgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Zhejiang University, Hangzhou, China
| | - Y Cai
- Department of General Surgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Zhejiang University, Hangzhou, China
| | - J Ni
- Department of General Surgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Zhejiang University, Hangzhou, China
| | - J Ma
- Shanghai Minimally Invasive Surgery Center, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - M Zheng
- Shanghai Minimally Invasive Surgery Center, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - A Lu
- Shanghai Minimally Invasive Surgery Center, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Jiao Tong University, Shanghai, China
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Ni J, Ling H, Zhang S, Wang Z, Peng Z, Benyshek C, Zan R, Miri A, Li Z, Zhang X, Lee J, Lee KJ, Kim HJ, Tebon P, Hoffman T, Dokmeci M, Ashammakhi N, Li X, Khademhosseini A. Three-dimensional printing of metals for biomedical applications. Mater Today Bio 2019; 3:100024. [PMID: 32159151 PMCID: PMC7061633 DOI: 10.1016/j.mtbio.2019.100024] [Citation(s) in RCA: 101] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2019] [Revised: 08/08/2019] [Accepted: 08/12/2019] [Indexed: 12/21/2022] Open
Abstract
Three-dimensional (3D) printing technology has received great attention in the past decades in both academia and industry because of its advantages such as customized fabrication, low manufacturing cost, unprecedented capability for complex geometry, and short fabrication period. 3D printing of metals with controllable structures represents a state-of-the-art technology that enables the development of metallic implants for biomedical applications. This review discusses currently existing 3D printing techniques and their applications in developing metallic medical implants and devices. Perspective about the current challenges and future directions for development of this technology is also presented.
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Affiliation(s)
- J. Ni
- Department of Bioengineering, University of California-Los Angeles, Los Angeles, CA 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California-Los Angeles, Los Angeles, CA 90095, USA
- California NanoSystems Institute, University of California-Los Angeles, Los Angeles, CA 90095, USA
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - H. Ling
- Center for Minimally Invasive Therapeutics (C-MIT), University of California-Los Angeles, Los Angeles, CA 90095, USA
- California NanoSystems Institute, University of California-Los Angeles, Los Angeles, CA 90095, USA
- Department of Mechanical and Aerospace Engineering, University of California-Los Angeles, Los Angeles, CA 90095, USA
| | - S. Zhang
- Department of Bioengineering, University of California-Los Angeles, Los Angeles, CA 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California-Los Angeles, Los Angeles, CA 90095, USA
- California NanoSystems Institute, University of California-Los Angeles, Los Angeles, CA 90095, USA
| | - Z. Wang
- Department of Bioengineering, University of California-Los Angeles, Los Angeles, CA 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California-Los Angeles, Los Angeles, CA 90095, USA
- California NanoSystems Institute, University of California-Los Angeles, Los Angeles, CA 90095, USA
| | - Z. Peng
- Department of Orthopaedic Surgery, Ningbo Medical Treatment Center Lihuili Hospital, PR China
| | - C. Benyshek
- Department of Bioengineering, University of California-Los Angeles, Los Angeles, CA 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California-Los Angeles, Los Angeles, CA 90095, USA
- California NanoSystems Institute, University of California-Los Angeles, Los Angeles, CA 90095, USA
| | - R. Zan
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - A.K. Miri
- Department of Bioengineering, University of California-Los Angeles, Los Angeles, CA 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California-Los Angeles, Los Angeles, CA 90095, USA
- California NanoSystems Institute, University of California-Los Angeles, Los Angeles, CA 90095, USA
| | - Z. Li
- Department of Bioengineering, University of California-Los Angeles, Los Angeles, CA 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California-Los Angeles, Los Angeles, CA 90095, USA
- California NanoSystems Institute, University of California-Los Angeles, Los Angeles, CA 90095, USA
- School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an, 710049, China
| | - X. Zhang
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - J. Lee
- Department of Bioengineering, University of California-Los Angeles, Los Angeles, CA 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California-Los Angeles, Los Angeles, CA 90095, USA
- California NanoSystems Institute, University of California-Los Angeles, Los Angeles, CA 90095, USA
| | - K.-J. Lee
- Department of Bioengineering, University of California-Los Angeles, Los Angeles, CA 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California-Los Angeles, Los Angeles, CA 90095, USA
- California NanoSystems Institute, University of California-Los Angeles, Los Angeles, CA 90095, USA
| | - H.-J. Kim
- Department of Bioengineering, University of California-Los Angeles, Los Angeles, CA 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California-Los Angeles, Los Angeles, CA 90095, USA
- California NanoSystems Institute, University of California-Los Angeles, Los Angeles, CA 90095, USA
| | - P. Tebon
- Department of Bioengineering, University of California-Los Angeles, Los Angeles, CA 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California-Los Angeles, Los Angeles, CA 90095, USA
- California NanoSystems Institute, University of California-Los Angeles, Los Angeles, CA 90095, USA
| | - T. Hoffman
- Department of Bioengineering, University of California-Los Angeles, Los Angeles, CA 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California-Los Angeles, Los Angeles, CA 90095, USA
- California NanoSystems Institute, University of California-Los Angeles, Los Angeles, CA 90095, USA
| | - M.R. Dokmeci
- Department of Bioengineering, University of California-Los Angeles, Los Angeles, CA 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California-Los Angeles, Los Angeles, CA 90095, USA
- California NanoSystems Institute, University of California-Los Angeles, Los Angeles, CA 90095, USA
- Department of Radiology, David Geffen School of Medicine, University of California-Los Angeles, Los Angeles, CA 90095, USA
| | - N. Ashammakhi
- Department of Bioengineering, University of California-Los Angeles, Los Angeles, CA 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California-Los Angeles, Los Angeles, CA 90095, USA
- California NanoSystems Institute, University of California-Los Angeles, Los Angeles, CA 90095, USA
- Department of Radiology, David Geffen School of Medicine, University of California-Los Angeles, Los Angeles, CA 90095, USA
| | - X. Li
- Department of Mechanical and Aerospace Engineering, University of California-Los Angeles, Los Angeles, CA 90095, USA
- Department of Materials Science and Engineering, University of California-Los Angeles, Los Angeles, CA 90095, USA
| | - A. Khademhosseini
- Department of Bioengineering, University of California-Los Angeles, Los Angeles, CA 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California-Los Angeles, Los Angeles, CA 90095, USA
- California NanoSystems Institute, University of California-Los Angeles, Los Angeles, CA 90095, USA
- Department of Radiology, David Geffen School of Medicine, University of California-Los Angeles, Los Angeles, CA 90095, USA
- Department of Chemical and Biomolecular Engineering, University of California-Los Angeles, Los Angeles, CA 90095, USA
- Department of Bioindustrial Technologies, College of Animal Bioscience and Technology, Konkuk University, Seoul, Republic of Korea
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Huang Q, Mayaka JB, Zhong Q, Zhang C, Hou G, Ni J, Shen Y. Phosphorylation of the Archaeal Holliday Junction Resolvase Hjc Inhibits Its Catalytic Activity and Facilitates DNA Repair in Sulfolobus islandicus REY15A. Front Microbiol 2019; 10:1214. [PMID: 31214148 PMCID: PMC6555300 DOI: 10.3389/fmicb.2019.01214] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Accepted: 05/15/2019] [Indexed: 11/18/2022] Open
Abstract
Protein phosphorylation is one of the main protein post-translational modifications and regulates DNA repair in eukaryotes. Archaeal genomes encode eukaryotic-like DNA repair proteins and protein kinases (ePKs), and several proteins involved in homologous recombination repair (HRR) including Hjc, a conserved Holliday junction (HJ) resolvase in Archaea, undergo phosphorylation, indicating that phosphorylation plays important roles in HRR. Herein, we performed phosphorylation analysis of Hjc by various ePKs from Sulfolobus islandicus. It was shown that SiRe_0171, SiRe_2030, and SiRe_2056, were able to phosphorylate Hjc in vitro. These ePKs phosphorylated Hjc at different Ser/Thr residues: SiRe_0171 on S34, SiRe_2030 on both S9 and T138, and SiRe_2056 on T138. The HJ cleavage activity of the phosphorylation-mimic mutants was analyzed and the results showed that the cleavage activity of S34E was completely lost and that of S9E had greatly reduced. S. islandicus strain expressing S34E in replacement of the wild type Hjc was resistant to higher doses of DNA damaging agents. Furthermore, SiRe_0171 deletion mutant exhibited higher sensitivity to DNA damaging agents, suggesting that Hjc phosphorylation by SiRe_0171 enhanced the DNA repair capability. Our results revealed that HJ resolvase is regulated by protein phosphorylation, reminiscent of the regulation of eukaryotic HJ resolvases GEN1 and Yen1.
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Affiliation(s)
- Qihong Huang
- State Key Laboratory of Microbial Technology, Microbial Technology Institute, Shandong University, Qingdao, China
| | - Joseph Badys Mayaka
- State Key Laboratory of Microbial Technology, Microbial Technology Institute, Shandong University, Qingdao, China
| | - Qing Zhong
- State Key Laboratory of Microbial Technology, Microbial Technology Institute, Shandong University, Qingdao, China
| | - Chao Zhang
- Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Guihua Hou
- Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Jinfeng Ni
- State Key Laboratory of Microbial Technology, Microbial Technology Institute, Shandong University, Qingdao, China
| | - Yulong Shen
- State Key Laboratory of Microbial Technology, Microbial Technology Institute, Shandong University, Qingdao, China
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58
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Li SY, Li H, Ni J, Ma YS. Comparison of intravenous lidocaine and dexmedetomidine infusion for prevention of postoperative catheter-related bladder discomfort: a randomized controlled trial. BMC Anesthesiol 2019; 19:37. [PMID: 30885134 PMCID: PMC6421662 DOI: 10.1186/s12871-019-0708-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Accepted: 03/05/2019] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Catheter-related bladder discomfort (CRBD) frequently occurs during recovery in patients who undergo intra-operative urinary catheterization. We conducted this study to compare the effect of intravenous lidocaine and dexmedetomidine infusion for preventing CRBD. METHODS 120 patients undergoing elective open abdominal hysterectomy or hysteromyomectomy requiring urinary bladder catheterization were randomly allocated into three groups of 40 each. Group L received a 2 mg/kg lidocaine bolus followed by infusion of 1.5 mg/kg/h; Group D received a 0.5 μg/kg dexmedetomidine bolus followed by infusion of 0.4 μg/kg/h; Group C received a bolus and infusion of normal saline of equivalent volume. The incidence and different severity (mild, moderate, and severe) of CRBD were assessed on arrival in the postanaesthesia care unit at 0, 1, 2, and 6 h postoperatively. RESULTS The incidence of CRBD was significantly lower in Group L and Group D compared with Group C at 0, 1, and 2 h. However, there was no significant difference among the three groups regarding the different severity of CRBD at all time points. The requirement of rescue tramadol for CRBD was lower in group L and group D than in group C. The incidence of sedation was significantly higher in Group D compared to Group L and Group C, though no difference in other adverse effects was observed. CONCLUSIONS Intravenous lidocaine and dexmedetomidine infusion reduced the incidence of CRBD as well as the additional tramadol requirement for CRBD, but had no effect on the different severity of CRBD. TRIAL REGISTRATION ChiCTR-INR-16009162 . Registered on 5 September 2016.
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Affiliation(s)
- S Y Li
- Department of Anesthesiology, West China Second Hospital of Sichuan University, Key Laboratory of Birth Defects and Related Diseases of Women and Children, No.20, Section 3, Renmin Nanlu, Chengdu, China
| | - H Li
- Department of Anesthesiology, West China Second Hospital of Sichuan University, Key Laboratory of Birth Defects and Related Diseases of Women and Children, No.20, Section 3, Renmin Nanlu, Chengdu, China
| | - J Ni
- Department of Anesthesiology, West China Second Hospital of Sichuan University, Key Laboratory of Birth Defects and Related Diseases of Women and Children, No.20, Section 3, Renmin Nanlu, Chengdu, China.
| | - Y S Ma
- Department of Anesthesiology, West China Second Hospital of Sichuan University, Key Laboratory of Birth Defects and Related Diseases of Women and Children, No.20, Section 3, Renmin Nanlu, Chengdu, China
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59
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Zhou LX, Yao M, Ni J, Zhu YC, Peng B, Cui LY. [Morphological classification of acute isolated pontine infarction and it's clinical relevance]. Zhonghua Yi Xue Za Zhi 2019; 98:3672-3675. [PMID: 30526777 DOI: 10.3760/cma.j.issn.0376-2491.2018.45.008] [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 investigate a diffusion weighted imaging (DWI)-based morphological classification for acute isolated pontine infarcts (AIPI) and to assess differences in clinical characteristics, risk factors and functional outcomes among the different morphologies. Methods: All participants from SMART cohort with DWI-proven AIPI were included and categorized into 3 groups: basilar artery branch disease (BABD) group, small artery disease (SAD) group and large-artery-occlusive disease (LAOD) group, according to lesion extent of the transverse axial plane and basilar artery atherosclerosis severity. The clinical characteristics, vascular risk factors and 6-month's functional outcome was analyzed among 3 groups. Results: Of the 1 129 patients enrolled, 175 had AIPI. BABD was the most frequent subtype of AIPI (46.3%), followed by SAD (36.0%) and LAOD (17.7%). Neurological impairment on admission was more severe in the LAOD and BABD group than SAD group (P<0.001). In terms of risk factors, the percentage of hypertension was significant different among three groups (P<0.05). The average National Institute of Health stroke scale was 3.49 for SAD group, 5.93 for LAOD group, 5.97 for BABD group, and the differences were significant (P<0.001). The Poor outcome (mRS>2) was found in only 13.7% of patients at 6-month post-stroke and there was no difference among 3 groups. Conclusions: According to the morphological classification, BABD is the most frequent subtype of AIPI. The differences of the clinical characteristics and risk factors among three groups indicate that differences observed in morphology might have distinct pathophysiologic mechanisms. AIPI can be reliably classified based on morphology using clinical magnetic resonance images.
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Affiliation(s)
- L X Zhou
- Department of Neurology, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100730, China
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Zhang JT, Chen SY, Han F, Zhai FF, Zhou LX, Ni J, Yao M, Cui LY, Li ML, Jin ZY, Zhu YC. [Prevalence and risk factors of perivascular space in the population of Shunyi Study]. Zhonghua Yi Xue Za Zhi 2019; 99:647-652. [PMID: 30831611 DOI: 10.3760/cma.j.issn.0376-2491.2019.09.003] [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 prevalence on imaging, topographic distribution and risk factors of perivascular space (PVS) in community population. Methods: This study was based on the population of Shunyi Study in China from June 2013 to September 2016. One thousand two hundred and thirty-two stroke free participants older than 35 years, who completed cerebral MRI, were included. Cardiovascular risk factors were assessed by interview, physical examination and blood sample tests. PVS were evaluated on high-resolution 3-dimensional-T1WI, T2WI and FLAIR sequences. On T1WI, PVS were detected according to 3D imaging criteria. The number and anatomic location of large PVS (≥3 mm) were recorded. And severity of PVS was then semiquantitatively graded in both white matter (WM) and basal ganglia (BG). Associations between risk factors and PVS were analyzed by multinominal Logistic regression models and adjusted for age, gender and relevant confounders. Results: Perivascular spaces were observed in the BG or WM in every subject, aged (55±10) years and 37.3% male. Large PVS were detected in 19.0% (460/1 232) of participants. Severity of PVS was found to be strongly associated with age in both basal ganglia (severe versus mild: OR=1.81; 95%CI 1.45-2.27, P<0.01) and white matter (OR=1.39; 95%CI 1.13-1.71, P<0.01), and the proportion of subjects with hypercholesterolemia decreased with the severity of PVS in BG (OR=0.58, P=0.01) . The present of large PVS was found to be associated with age(present versus absent: OR=1.03, 95%CI 1.02-1.05, P<0.01) and ApoE ε4 carrier genotype(OR=1.53, 95%CI 1.01-2.23, P=0.04). Conclusions: Perivascular spaces are always detected in the BG or WM in elderly people, and large PVS are also prevalent in community-based population. The risk factors are different due to distribution and size, and may depend on anatomic or pathologic characteristics.
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Affiliation(s)
- J T Zhang
- Department of Neurology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100730, China
| | - S Y Chen
- Department of Neurology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100730, China
| | - F Han
- Department of Neurology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100730, China
| | - F F Zhai
- Department of Neurology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100730, China
| | - L X Zhou
- Department of Neurology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100730, China
| | - J Ni
- Department of Neurology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100730, China
| | - M Yao
- Department of Neurology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100730, China
| | - L Y Cui
- Department of Neurology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100730, China
| | - M L Li
- Department of Radiology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100730, China
| | - Z Y Jin
- Department of Radiology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100730, China
| | - Y C Zhu
- Department of Neurology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100730, China
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Du J, Jiang S, Wei J, Shen Y, Ni J. [Co-expression of lignocellulase from termite and their endosymbionts]. Sheng Wu Gong Cheng Xue Bao 2019; 35:244-253. [PMID: 30806054 DOI: 10.13345/j.cjb.180235] [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: 11/22/2022]
Abstract
Natural lignocellulosic materials contain cellulose, hemicellulose, and lignin. Cellulose hydrolysis to glucose requires a series of lignocellulases. Recently, the research on the synergistic effect of lignocellulases has become a new research focus. Here, four lignocellulase genes encoding β-glucosidase, endo-1,4-β-glucanase, xylanase and laccase from termite and their endosymbionts were cloned into pETDuet-1 and pRSFDuet-1 and expressed in Escherichia coli. After SDS-PAGE analysis, the corresponding protein bands consistent with the theoretical values were observed and all the proteins showed enzyme activities. We used phosphoric acid swollen cellulose (PASC) as substrate to measure the synergistic effect of crude extracts of co-expressing enzymes and the mixture of single enzyme. The co-expressed enzymes increased the degradation efficiency of PASC by 44% compared with the single enzyme mixture; while the degradation rate increased by 34% and 20%, respectively when using filter paper and corn cob pretreated with phosphoric acid as substrates. The degradation efficiency of the co-expressed enzymes was higher than the total efficiency of the single enzyme mixture.
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Affiliation(s)
- Jiao Du
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao 266200, Shandong, China
| | - Shuzhe Jiang
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao 266200, Shandong, China
| | - Jianhua Wei
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao 266200, Shandong, China
| | - Yulong Shen
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao 266200, Shandong, China
| | - Jinfeng Ni
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao 266200, Shandong, China
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62
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Ni J. [The overview of the development of modern burn surgery in China]. Zhonghua Yi Shi Za Zhi 2019; 49:19-24. [PMID: 30970420 DOI: 10.3760/cma.j.issn.0255-7053.2019.01.004] [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
Chinese modern burn surgery belongs to the western medicine system. From 1930s, the knowledge of modern burn surgery spread over China. Its development had experienced four stages: enlightening stage, exploratory stage, mature stage, and remodeling stage. Before the 1950s, medical personnel began to study those knowledges. The clinical treatment developed slowly and had little experience. From the 1950s to 1960s, Chinese burn surgery professionals made the painstaking exploration and accumulated rich clinical experiences. The success of severe burns treatment attracted worldwide attention. From the 1970s to the mid-1990s, as the regulations of burn diagnosis and treatment established in China, the clinical treatment developed widely. The world's leading therapeutic effects have achieved. The professional education system has been founded, and the professional societies have created. Those made medical personnel can access the scientific research achievement. Therefore, the leading talents emerged. Chinese modern burn surgery entered a mature stage. Since the late-1990s, Chinese modern burn surgery entered a remodeling stage. Besides increasing the cure rate and decrease disability rate of burn gradually, Chinese modern burn surgery need solve new problems such as that standardization of diagnosis and treatment sets up, the scope of diagnosis and treatment expands, professional training improves, etc.
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Affiliation(s)
- J Ni
- Department of Burns and Plastic Surgery, 905th Hospital of PLA Navy, Shanghai 200052, China
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Li Y, Gan T, Guo Y, Shen Y, Yang Y, Ni J. Balancing the efficacy and toxicity of anti-CD47 antibodies by direct screening in humanized mouse models. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy487.031] [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: 11/15/2022] Open
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64
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Guo C, Yang Y, Guo Y, Shen Y, Ni J. Novel CTLA4 antibodies demonstrate potent anti-tumor activity in humanized CTLA4 mouse model. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy487.009] [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
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65
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Ni J, Li G, Zhu Z. P121 Clinical Value of Local Therapy in Advanced Crizotinib-Treated ALK-Rearranged Lung Cancer: Pattern of Failure Analyses. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.10.147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Yang Y, Guo Y, Shen Y, Ni J. Optimizing novel anti-4-1BB antibodies on a in vivo drug screening platform. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy487.012] [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
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67
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Yin Z, Chen M, Li L, Ni J, Lou H. Prognosis for Patients with FIGO IVB Cervical Squamous Cell Carcinoma Having Hematogenous Metastasis: A Single-Center Retrospective Analysis of 82 Cases. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.07.1742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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68
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Ni J, Sun SX, Zheng Y, Datta R, Sarkar D, Li YM. Removal of prometryn from hydroponic media using marsh pennywort (Hydrocotyle vulgaris L.). Int J Phytoremediation 2018; 20:909-913. [PMID: 29873532 DOI: 10.1080/15226514.2018.1448359] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The aquatic plant Hydrocotyle vulgaris was evaluated for its efficacy in removing prometryn from nutrient solution. Under optimized experimental conditions, up to 94.0% of the initial prometryn was removed from the hydroponic culture medium by H. vulgaris in 30 days. The concentration of prometryn decreased from the initial level of 0.55 ± 0.013 mg/L to 0.036 ± 0.001 mg/L at the end of the experimental period. The removal kinetics followed first-order kinetic equation (Ct = 0.4569e-0.09t). Half-life (t1/2) of prometryn was greatly shortened from 27.16 days (without plant) to 5.58 days (with H. vulgaris). Approximately 22% of the initial prometryn residue was found in H. vulgaris tissue, while 11.7% was degraded by the plant in 30 days. The metabolites of prometryn detected were 2,4-diamino-1,3,5-triazine (in the hydroponic culture medium) and 2,4,6-trihydroxy-1,3,5-triazine (in plant tissue) after 30 days. The results indicate that H. vulgaris can be used for phytoextraction of prometryn and could potentially be effective in removing other s-trazine pesticides from contaminated aquatic ecosystems.
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Affiliation(s)
- J Ni
- a Soil Science and Plant Nutrition, Yunnan Agricultural University , Kunming , P. R. China
- b College of Environment Science and Engineering, Southwest Forestry University , Kunming , P. R. China
| | - S X Sun
- b College of Environment Science and Engineering, Southwest Forestry University , Kunming , P. R. China
| | - Y Zheng
- b College of Environment Science and Engineering, Southwest Forestry University , Kunming , P. R. China
| | - R Datta
- c Biological Sciences Department , Michigan Technological University , Houghton , MI , USA
| | - D Sarkar
- d Civil, Environmental, and Ocean Engineering Department , Stevens Institute of Technology , Hoboken , NJ , USA
| | - Y M Li
- a Soil Science and Plant Nutrition, Yunnan Agricultural University , Kunming , P. R. China
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Zhai B, DuPrez K, Han X, Yuan Z, Ahmad S, Xu C, Gu L, Ni J, Fan L, Shen Y. The archaeal ATPase PINA interacts with the helicase Hjm via its carboxyl terminal KH domain remodeling and processing replication fork and Holliday junction. Nucleic Acids Res 2018; 46:6627-6641. [PMID: 29846688 PMCID: PMC6061704 DOI: 10.1093/nar/gky451] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Revised: 05/05/2018] [Accepted: 05/09/2018] [Indexed: 11/27/2022] Open
Abstract
PINA is a novel ATPase and DNA helicase highly conserved in Archaea, the third domain of life. The PINA from Sulfolobus islandicus (SisPINA) forms a hexameric ring in crystal and solution. The protein is able to promote Holliday junction (HJ) migration and physically and functionally interacts with Hjc, the HJ specific endonuclease. Here, we show that SisPINA has direct physical interaction with Hjm (Hel308a), a helicase presumably targeting replication forks. In vitro biochemical analysis revealed that Hjm, Hjc, and SisPINA are able to coordinate HJ migration and cleavage in a concerted way. Deletion of the carboxyl 13 amino acid residues impaired the interaction between SisPINA and Hjm. Crystal structure analysis showed that the carboxyl 70 amino acid residues fold into a type II KH domain which, in other proteins, functions in binding RNA or ssDNA. The KH domain not only mediates the interactions of PINA with Hjm and Hjc but also regulates the hexameric assembly of PINA. Our results collectively suggest that SisPINA, Hjm and Hjc work together to function in replication fork regression, HJ formation and HJ cleavage.
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Affiliation(s)
- Binyuan Zhai
- State Key Laboratory of Microbial Technology, Microbiology and Biotechnology Institute, Shandong University, 72 Binhai Road, Jimo, Qingdao, Shandong, 266237, P.R. China
| | - Kevin DuPrez
- Department of Biochemistry, University of California, Riverside, CA 92521, USA
| | - Xiaoyun Han
- State Key Laboratory of Microbial Technology, Microbiology and Biotechnology Institute, Shandong University, 72 Binhai Road, Jimo, Qingdao, Shandong, 266237, P.R. China
| | - Zenglin Yuan
- State Key Laboratory of Microbial Technology, Microbiology and Biotechnology Institute, Shandong University, 72 Binhai Road, Jimo, Qingdao, Shandong, 266237, P.R. China
| | - Sohail Ahmad
- State Key Laboratory of Microbial Technology, Microbiology and Biotechnology Institute, Shandong University, 72 Binhai Road, Jimo, Qingdao, Shandong, 266237, P.R. China
| | - Cheng Xu
- State Key Laboratory of Microbial Technology, Microbiology and Biotechnology Institute, Shandong University, 72 Binhai Road, Jimo, Qingdao, Shandong, 266237, P.R. China
| | - Lichuan Gu
- State Key Laboratory of Microbial Technology, Microbiology and Biotechnology Institute, Shandong University, 72 Binhai Road, Jimo, Qingdao, Shandong, 266237, P.R. China
| | - Jinfeng Ni
- State Key Laboratory of Microbial Technology, Microbiology and Biotechnology Institute, Shandong University, 72 Binhai Road, Jimo, Qingdao, Shandong, 266237, P.R. China
| | - Li Fan
- Department of Biochemistry, University of California, Riverside, CA 92521, USA
| | - Yulong Shen
- State Key Laboratory of Microbial Technology, Microbiology and Biotechnology Institute, Shandong University, 72 Binhai Road, Jimo, Qingdao, Shandong, 266237, P.R. China
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Jiang S, Li J, Cao C, Shen Y, Ni J. [Molecular modification of β-glucosidase from the midgut of Macrotermes barneyi]. Sheng Wu Gong Cheng Xue Bao 2018; 34:1081-1090. [PMID: 30058307 DOI: 10.13345/j.cjb.170511] [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: 06/08/2023]
Abstract
Cellulose hydrolysis to glucose requires a series of cellulase enzymes, of which β-glucosidases play a crucial role. β-glucosidase (MbmgBG1) derived from the midgut of Macrotermes barneyi has higher glucose tolerance (maintaining more than 60% enzyme activity at 1.5 mol/L glucose). However, low enzyme activity and poor thermal stability limit the applications of β-glucosidase in food industries. Point mutants (F167L, T176C, E347I, R354K, N393G and V425M) were obtained by site-directed mutagenesis of non-conserved amino acids near conserved amino acids. Among them, the specific activities against to substrate pNPG of two mutants (F167L and R354K) were about 2-fold and 4-fold higher than that of MbmgBG1. Kcat/Km values were also higher than that of the wild-type, reflecting stronger affinity to the substrate and higher catalytic ability of mutants than MbmgBG1. When the glucose concentration was 1.5 mol/L, the enzyme activity of MbmgBG1 was about 60% of the original activity. F167L and R354K kept 60% enzymatic activity when the glucose concentrations of was 2.0 mol/L and 3.0 mol/L, respectively. These results lay a foundation for further studies on the catalytic efficiency of β-glucosidase.
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Affiliation(s)
- Shuzhe Jiang
- State Key Laboratory of Microbial Technology, Shandong University, Ji'nan 250100, Shandong, China
| | - Jingjing Li
- State Key Laboratory of Microbial Technology, Shandong University, Ji'nan 250100, Shandong, China
| | - Chunjing Cao
- State Key Laboratory of Microbial Technology, Shandong University, Ji'nan 250100, Shandong, China
| | - Yulong Shen
- State Key Laboratory of Microbial Technology, Shandong University, Ji'nan 250100, Shandong, China
| | - Jinfeng Ni
- State Key Laboratory of Microbial Technology, Shandong University, Ji'nan 250100, Shandong, China
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Liao ZM, Ni J. Glossopharyngeal (IXth) cranial nerve palsy associated with postural change after accidental dural puncture. Int J Obstet Anesth 2018; 36:133-134. [PMID: 29983279 DOI: 10.1016/j.ijoa.2018.06.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Revised: 05/28/2018] [Accepted: 06/01/2018] [Indexed: 11/27/2022]
Affiliation(s)
- Z M Liao
- Department of Anaesthesiology, West China Second Hospital, Sichuan University, Chengdu, Sichuan, China; Key Laboratory of Obstetric Gynecologic and Pediatric Diseases and Birth Defects, Ministry of Education, Chengdu, Sichuan, China
| | - J Ni
- Department of Anaesthesiology, West China Second Hospital, Sichuan University, Chengdu, Sichuan, China; Key Laboratory of Obstetric Gynecologic and Pediatric Diseases and Birth Defects, Ministry of Education, Chengdu, Sichuan, China.
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Ni J, El-Ansary D, Heiberg J, Shen G, You Q, Gao Y, Liu K, Ke H, Royse CF. Validation of a revised Mandarin Chinese language version of the Postoperative Quality of Recovery Scale. Anaesth Intensive Care 2018; 46:278-289. [PMID: 29716486 DOI: 10.1177/0310057x1804600305] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The aim of the study was to validate a revised Mandarin version of the Postoperative Quality of Recovery Scale (PostopQRS) and to apply the revised version in a Chinese population. In a prospective design, bilingual volunteers completed the scale at baseline, day one, day seven, and day 14 in both languages, with the order of language and parallel forms randomised. In addition, lung cancer patients undergoing open or video-assisted thoracoscopic surgery (VATS) completed the Mandarin version prior to surgery, day one, day three, day seven, day 14, one month, and three months postoperatively. Sixty-eight volunteers participated in the validation part of the study and in the clinical application, 93 lung cancer patients were included. The scores in the Mandarin version were equal to the English version in all domains at all timepoints including the word generation task, when the Mandarin morpheme was included in any part of the Mandarin word. However, Mandarin scores were lower in the word generation task if the morpheme was only included in the first part of the word. In addition, the Mandarin version was able to identify lower rates of overall recovery (<i>P</i> <0.01), nociceptive (<i>P</i> <0.01), emotive (<i>P</i> <0.01), and activities of daily living recovery (<i>P</i>=0.02) after open surgery compared to after VATS. The revised Mandarin version is equivalent to the English version for the cognitive domain, if morpheme substitution for the word generation task is allowed as any part of the word, and it is able to discriminate quality of recovery in Chinese patients.
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Affiliation(s)
- J Ni
- Associate Professor of Rehabilitation, Department of Rehabilitation Medicine, The Affiliated Hospital of Nantong University; Nantong University; Nantong, China
| | - D El-Ansary
- Associate Professor and Director of Physiotherapy, Faculty of Health Sciences, Swinburne University; Honorary Senior Research Fellow, Department of Surgery, School of Medicine, The University of Melbourne; Melbourne, Victoria
| | - J Heiberg
- Research Fellow, Department of Anaesthesia and Pain Management, Royal Melbourne Hospital; Department of Surgery, University of Melbourne; Melbourne, Victoria
| | - G Shen
- Professor, Department of Rehabilitation Medicine, The Affiliated Hospital of Nantong University; Department of Rehabilitation Medicine, Nantong University; Nantong, China
| | | | | | | | | | - C F Royse
- Consultant Anaesthetist, Department of Anaesthesia and Pain Management, Royal Melbourne Hospital; Professor, Department of Surgery, University of Melbourne; Melbourne, Victoria
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Ni J, Mei C, Yu S, Shen G, Lu X, Li J. Effects of physiological ischemic training on post-stroke neuroprotection and angiogenesis in adult rats. Ann Phys Rehabil Med 2018. [DOI: 10.1016/j.rehab.2018.05.424] [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: 11/28/2022]
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74
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Ngo A, Lopes V, Ni J. Analysis of t cell proliferation using different methods of activation and seeding densities in serum-free media. Cytotherapy 2018. [DOI: 10.1016/j.jcyt.2018.02.328] [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: 10/17/2022]
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75
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Huang Q, Zhong Q, Mayaka JBA, Ni J, Shen Y. Autophosphorylation and Cross-Phosphorylation of Protein Kinases from the Crenarchaeon Sulfolobus islandicus. Front Microbiol 2017; 8:2173. [PMID: 29163450 PMCID: PMC5682000 DOI: 10.3389/fmicb.2017.02173] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Accepted: 10/23/2017] [Indexed: 11/17/2022] Open
Abstract
Protein phosphorylation, one of the most important post-translational modifications, regulates almost every cellular process. Although signal transduction by protein phosphorylation is extensively studied in Eukaryotes and Bacteria, the knowledge of this process in archaea is greatly lagging behind, especially for Ser/Thr/Tyr phosphorylation by eukaryotic-like protein kinases (ePKs). So far, only a few studies on archaeal ePKs have been reported, most of which focused on the phosphorylation activities in vitro, but their physiological functions and interacting network are still largely unknown. In this study, we systematically investigated the autophosphorylation and cross-phosphorylation activities of ePKs from Sulfolobus islandicus REY15A using proteins expressed in Escherichia coli or S. islandicus. In vitro kinase assay showed that 7 out of the 11 putative ePKs have autophosphorylation activity. A protein Ser/Thr phosphatase, SiRe_1009, was able to dephosphorylate various autophosphorylated ePKs, confirming that these proteins are Ser/Thr kinases. Two ePKs, SiRe_2030 and SiRe_2056, homologs of typical eukaryotic PKs involved in peptide synthesis in response to various cellular stresses, exhibit highly efficient phosphorylation activities on both themselves and other ePKs. Overexpression of the protein kinases in vivo revealed that elevated level of either SiRe_1531 or SiRe_2056 inhibited the cell growth of S. islandicus cells. Finally, a phosphorylation network of the protein kinases was proposed and their putative physiological roles were discussed.
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Affiliation(s)
- Qihong Huang
- State Key Laboratory of Microbial Technology, Shandong University, Jinan, China
| | - Qing Zhong
- State Key Laboratory of Microbial Technology, Shandong University, Jinan, China
| | - Joseph B A Mayaka
- State Key Laboratory of Microbial Technology, Shandong University, Jinan, China
| | - Jinfeng Ni
- State Key Laboratory of Microbial Technology, Shandong University, Jinan, China
| | - Yulong Shen
- State Key Laboratory of Microbial Technology, Shandong University, Jinan, China
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Meng Y, Zhang Y, Ma Z, Zhou H, Ni J, Liao H, Tang Q. Genistein attenuates pathological cardiac hypertrophy in vivo and in vitro. Herz 2017; 44:247-256. [DOI: 10.1007/s00059-017-4635-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2017] [Revised: 09/01/2017] [Accepted: 09/29/2017] [Indexed: 12/31/2022]
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Ni J, Cozzi P, Beretov J, Bucci J, Graham P, Li Y. Studying CD44 variant 6 (CD44v6) in prostate cancer progression and chemo-/radio-resistance using in vivo mouse models. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx662.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Sun X, Li J, Du J, Xiao H, Ni J. Cellulomonas macrotermitis sp. nov., a chitinolytic and cellulolytic bacterium isolated from the hindgut of a fungus-growing termite. Antonie van Leeuwenhoek 2017; 111:471-478. [DOI: 10.1007/s10482-017-0968-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Accepted: 10/21/2017] [Indexed: 10/18/2022]
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Yin Z, Wu H, Li L, Ni J, Chen M, Lou H. A Prospective Survey on Quality of Life Among Chinese Cervical Cancer Survivors at Different Time Stages after Radiation Therapy. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.1358] [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: 10/18/2022]
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Li J, Liu J, Shen Y, Ni J. Swionibacillus sediminis gen. nov., sp. nov., a member of the family Bacillaceae isolated from ocean sediment. Int J Syst Evol Microbiol 2017; 67:3440-3445. [DOI: 10.1099/ijsem.0.002133] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [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)
- Jingjing Li
- State Key Laboratory of Microbial Technology, Shandong University, Jinan 250100, PR China
| | - Junfeng Liu
- State Key Laboratory of Microbial Technology, Shandong University, Jinan 250100, PR China
| | - Yulong Shen
- State Key Laboratory of Microbial Technology, Shandong University, Jinan 250100, PR China
| | - Jinfeng Ni
- State Key Laboratory of Microbial Technology, Shandong University, Jinan 250100, PR China
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Yan Z, Yuan Z, Ni J, Gu L, Shen Y. Crystal structure of the crenarchaeal ExoIII AP endonuclease SisExoIII reveals a conserved disulfide bond endowing the protein with thermostability. Biochem Biophys Res Commun 2017. [PMID: 28647366 DOI: 10.1016/j.bbrc.2017.06.116] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
AP endonuclease recognizes and cleaves apurinic/apyrimidinic (AP) sites and plays a critical role in base excision repair. Many ExoIII and EndoIV family AP endonucleases have been characterized both biochemically and structurally in Eukaryote and Bacteria. However, relatively fewer have been studied in Euryarchaeota and there is no such report on an AP endonuclease from Crenarchaeota. Here we report, for the first time, the crystal structure of a crenarchaeal ExoIII AP endonuclease, SisExoIII, from Sulfolobus islandicus REY15A. SisExoIII comprises a two-layer core formed by 10 β-sheets and a shell formed by 9 surrounding α-helices. A disulfide bond connecting β8 and β9 is formed by Cys142 and Cys215. This intra-molecular linkage is conserved among crenarchaeal ExoIII homologs and site-directed mutagenesis revealed that it endows the protein with thermostability, however, disruption of the disulfide bond only has a slight effect on the AP endonuclease activity. We also observed that several key residues within the catalytic center including conserved Glu35 and Asn9 show different conformation compared with known ExoIII proteins and form various intra-molecular salt bridges. The protein possesses three putative DNA binding loops with higher flexibility and hydrophobicity than those of ExoIIIs from other organisms. These features may result in low AP endonuclease activity and defect of exonuclease activity of SisExoIII. The study has deepened our understanding in the structural basis of crenarchaeal ExoIII catalysis and clarified a role of the disulfide bond in maintaining protein thermostability.
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Affiliation(s)
- Zhou Yan
- State Key Laboratory of Microbial Technology, Shandong University, 27 Shanda Nan Rd., Jinan, 250100, PR China
| | - Zenglin Yuan
- State Key Laboratory of Microbial Technology, Shandong University, 27 Shanda Nan Rd., Jinan, 250100, PR China
| | - Jinfeng Ni
- State Key Laboratory of Microbial Technology, Shandong University, 27 Shanda Nan Rd., Jinan, 250100, PR China
| | - Lichuan Gu
- State Key Laboratory of Microbial Technology, Shandong University, 27 Shanda Nan Rd., Jinan, 250100, PR China
| | - Yulong Shen
- State Key Laboratory of Microbial Technology, Shandong University, 27 Shanda Nan Rd., Jinan, 250100, PR China.
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Ni J, Wang F, Yue L, Xiang GD, Zhao LS, Wang Y, Ye LZ, Dong J. [The effects and mechanisms of berberine on proliferation of papillary thyroid cancer K1 cells induced by high glucose]. Zhonghua Nei Ke Za Zhi 2017; 56:507-511. [PMID: 28693059 DOI: 10.3760/cma.j.issn.0578-1426.2017.07.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To study the effect and mechanisms of berberine (BBR) on the proliferation of papillary thyroid cancer K1 cells induced by high glucose. Methods: K1 cells were cultured under 5.5 mmol/L or 25 mmol/L glucose condition with or without different concentration of BBR (0, 10, 40 and 80 μmol/L) for 24 hours. The proliferations of K1 cells in each condition were detected by MTT. Western blot was used to measure the expression of nuclear factor erythroid 2-related factor 2(Nrf2), phosphoinositide 3-kinase (PI3K), protein kinase B (Akt) and phosphorylated-Akt (p-Akt). The distribution pattern of Nrf2 in K1 cells was determined using immunofluorescent staining. Results: Compared with 5.5 mmol/L condition, the proliferation rate [(126.64±5.41) % vs (87.31±3.67)%], expression levels of PI3K (0.425±0.019 vs 0.272±0.039), p-Akt/Akt (0.446±0.021 vs 0.168±0.035) and Nrf2 (0.597±0.014 vs 0.308±0.026), and Nrf2 distribution (93.0% vs 23.1%) in nuclear of K 1 cells under 25 mmol/L condition were significantly elevated, respectively (all P<0.01). Addition of BBR in 25 mmol/L condition dose dependently (10, 40, 80 μmol/L) lowered the proliferation rate of K1 cells [(111.76±4.10)%, (70.03±2.18)%, (32.41±3.76)% vs (126.64±5.41)%, all P<0.05], and suppressed the expression of PI3K, p-Akt/Akt, Nrf2, and Nrf2 nuclear distribution (P<0.05). Conclusions: BBR dose dependently inhibited the proliferation of high glucose-induced K1 cells. This effect was associated with the suppression on of PI3K/Akt signaling activation, Nrf2 expression and its nuclear translocation.
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Affiliation(s)
- J Ni
- Department of Endocrinology in Wuhan General Hospital of Chinese People's Liberation Army, Wuhan 430070, China
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Liu J, Gao R, Li C, Ni J, Yang Z, Zhang Q, Chen H, Shen Y. Functional assignment of multiple ESCRT-III homologs in cell division and budding in Sulfolobus islandicus. Mol Microbiol 2017; 105:540-553. [PMID: 28557139 DOI: 10.1111/mmi.13716] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/22/2017] [Indexed: 01/26/2023]
Abstract
The archaea Sulfolobus utilizes the ESCRT-III-based machinery for cell division. This machinery comprises three proteins: CdvA, Eukaryotic-like ESCRT-III and Vps4. In addition to ESCRT-III, Sulfolobus cells also encode three other ESCRT-III homologs termed ESCRT-III-1, -2 and -3. Herein, we show that ESCRT-III-1 and -2 in S. islandicus REY15A are localized at midcell between segregating chromosomes, indicating that both are involved in cell division. Genetic analysis reveals that escrt-III-2 is indispensable for cell viability and cells with reduced overall level of ESCRT-III-1 exhibit growth retardation and cytokinesis defect with chain-like cell morphology. In contrast, escrt-III-3 is dispensable for cell division. We show that S. islandicus REY15A cells generate buds when infected with S. tengchongensis spindle shaped-virus 2 (STSV2) or when ESCRT-III-3 is over-expressed. Interestingly, Δescrt-III-3 cells infected with STSV2 do not produce buds. These results suggest that ESCRT-III-3 plays an important role in budding. In addition, cells over-expressing the C-terminal truncated mutants of ESCRT-III, ESCRT-III-1 and ESCRT-III-2 are maintained predominantly at the early, late, and membrane abscission stages of cell division respectively, suggesting a crucial role of the ESCRTs at different stages of membrane ingression. Intriguingly, intercellular bridge and midbody-like structures are observed in cells over-expressing MIM2-truncated mutant of ESCRT-III-2.
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Affiliation(s)
- Junfeng Liu
- State Key Laboratory of Microbial Technology, Shandong University, 27 Shanda Nan Rd, Jinan, Shandong, 250100, People's Republic of China
| | - Renxia Gao
- State Key Laboratory of Microbial Technology, Shandong University, 27 Shanda Nan Rd, Jinan, Shandong, 250100, People's Republic of China
| | - Chengtao Li
- State Key Laboratory of Microbial Technology, Shandong University, 27 Shanda Nan Rd, Jinan, Shandong, 250100, People's Republic of China
| | - Jinfeng Ni
- State Key Laboratory of Microbial Technology, Shandong University, 27 Shanda Nan Rd, Jinan, Shandong, 250100, People's Republic of China
| | - Zhaojie Yang
- Biotechnology Research Center, Faculty of Biological and Engineering, Cenggong Campus, Kunming University of Science and Technology (KUST), Kunming, Yunnan, 650500, People's Republic of China
| | - Qi Zhang
- Biotechnology Research Center, Faculty of Biological and Engineering, Cenggong Campus, Kunming University of Science and Technology (KUST), Kunming, Yunnan, 650500, People's Republic of China
| | - Haining Chen
- State Key Laboratory of Microbial Technology, Shandong University, 27 Shanda Nan Rd, Jinan, Shandong, 250100, People's Republic of China
| | - Yulong Shen
- State Key Laboratory of Microbial Technology, Shandong University, 27 Shanda Nan Rd, Jinan, Shandong, 250100, People's Republic of China
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84
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Ning N, Tan H, Sun X, Ni J. [Advance of heterologous expression study of eukaryote-origin laccases]. Sheng Wu Gong Cheng Xue Bao 2017; 33:565-577. [PMID: 28920390 DOI: 10.13345/j.cjb.160352] [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: 11/22/2022]
Abstract
Laccases are enzymes belonging to the group of multi-copper oxidases. These enzymes are widely distributed in insects, plants, fungi and bacteria. In general, laccases can oxidize an exceptionally high number of substrates, so they have broad applications in textile, pulp, food and the degradation of lignin. However, low yield, low activity and thermo-instability of laccase in nature limit the application of laccase. High efficient heterologous expression of the protein is an effective way for solving this problem. Here, we summarize the research advances of heterologous expression of eukaryote-origin laccases. We focus on the overexpression of eukaryote-origin laccases using different expression system and the method for improving the production yield and enzyme activity in yeast cells. Information provided in this review would be helpful for researchers in the field.
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Affiliation(s)
- Na Ning
- State Key Laboratory of Microbial Technology, Shandong University, Ji'nan 250100, Shandong, China
| | - Huijun Tan
- State Key Laboratory of Microbial Technology, Shandong University, Ji'nan 250100, Shandong, China
| | - Xinxin Sun
- State Key Laboratory of Microbial Technology, Shandong University, Ji'nan 250100, Shandong, China
| | - Jinfeng Ni
- State Key Laboratory of Microbial Technology, Shandong University, Ji'nan 250100, Shandong, China
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85
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Zhai B, DuPrez K, Doukov TI, Li H, Huang M, Shang G, Ni J, Gu L, Shen Y, Fan L. Structure and Function of a Novel ATPase that Interacts with Holliday Junction Resolvase Hjc and Promotes Branch Migration. J Mol Biol 2017; 429:1009-1029. [PMID: 28238763 PMCID: PMC5565510 DOI: 10.1016/j.jmb.2017.02.016] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Revised: 01/25/2017] [Accepted: 02/19/2017] [Indexed: 11/15/2022]
Abstract
Holliday junction (HJ) is a hallmark intermediate in DNA recombination and must be processed by dissolution (for double HJ) or resolution to ensure genome stability. Although HJ resolvases have been identified in all domains of life, there is a long-standing effort to search in prokaryotes and eukarya for proteins promoting HJ migration. Here, we report the structural and functional characterization of a novel ATPase, Sulfolobus islandicusPilT N-terminal-domain-containing ATPase (SisPINA), encoded by the gene adjacent to the resolvase Hjc coding gene. PINA is conserved in archaea and vital for S. islandicus viability. Purified SisPINA forms hexameric rings in the crystalline state and in solution, similar to the HJ migration helicase RuvB in Gram-negative bacteria. Structural analysis suggests that ATP binding and hydrolysis cause conformational changes in SisPINA to drive branch migration. Further studies reveal that SisPINA interacts with SisHjc and coordinates HJ migration and cleavage.
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Affiliation(s)
- Binyuan Zhai
- State Key Laboratory of Microbial Technology, Shandong University, 27 Shanda Nan Road, Jinan 250100, PR China
| | - Kevin DuPrez
- Department of Biochemistry, University of California, Riverside, CA 92521, USA
| | - Tzanko I Doukov
- Macromolecular Crystallography Group, Stanford Synchrotron Radiation Light Source, SLAC National Accelerator Laboratory, Stanford University, Stanford, CA 94309, USA
| | - Huan Li
- State Key Laboratory of Microbial Technology, Shandong University, 27 Shanda Nan Road, Jinan 250100, PR China
| | - Mengting Huang
- State Key Laboratory of Microbial Technology, Shandong University, 27 Shanda Nan Road, Jinan 250100, PR China
| | - Guijun Shang
- State Key Laboratory of Microbial Technology, Shandong University, 27 Shanda Nan Road, Jinan 250100, PR China
| | - Jinfeng Ni
- State Key Laboratory of Microbial Technology, Shandong University, 27 Shanda Nan Road, Jinan 250100, PR China
| | - Lichuan Gu
- State Key Laboratory of Microbial Technology, Shandong University, 27 Shanda Nan Road, Jinan 250100, PR China
| | - Yulong Shen
- State Key Laboratory of Microbial Technology, Shandong University, 27 Shanda Nan Road, Jinan 250100, PR China.
| | - Li Fan
- Department of Biochemistry, University of California, Riverside, CA 92521, USA.
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86
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Zhu ZX, Yu ZM, Taylor JL, Wu YH, Ni J. [The application of yeast hybrid systems in protein interaction analysis]. Mol Biol (Mosk) 2017; 50:751-759. [PMID: 27830677 DOI: 10.7868/s0026898416050189] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2015] [Accepted: 12/27/2015] [Indexed: 11/23/2022]
Abstract
Yeast hybrid systems have been widely used due to their convenience and low cost. Based on these systems, many methods have been developed to analyze protein-protein, protein-DNA and protein-RNA interactions. In this paper, we are reviewing these different yeast hybrid systems. According to the number of hybrid proteins, yeast hybrid systems can be divided into three categories, yeast one-hybrid, yeast two-hybrid and yeast three-hybrid systems. Alternatively, yeast hybrid systems can be categorized according to the subcellular localization of the protein interaction process in the cell into nuclear protein-protein interactions, cytosol protein-protein interactions and membrane protein-protein interactions. Throughout the review, we focus on the progress and limitations of each yeast hybrid system over the recent years.
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Affiliation(s)
- Z-X Zhu
- Agricultural Crops Molecular Improving Lab, Liaoning Academy of Agricultural Sciences, Shenyang, 110161 China
| | - Z-M Yu
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, 310018 China
| | - J L Taylor
- School of Life Sciences, Gibbet Hill Campus, University of Warwick, Coventry CV4 7AL, United Kingdom
| | - Y-H Wu
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, 310018 China
| | - J Ni
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, 310018 China.,
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87
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Su Z, Wang B, Ni J, Hu Y, Weng Y, Zhang X. Comment on 'Myasthenia gravis: descriptive analysis of life-threatening events in a recent nationwide registry'. Eur J Neurol 2017; 24:e17. [PMID: 28211243 DOI: 10.1111/ene.13248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2016] [Accepted: 01/04/2017] [Indexed: 11/28/2022]
Affiliation(s)
- Z Su
- Department of Neurology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang
| | - B Wang
- Shanghai Children's Hospital, Shanghai JiaoTong University, Shanghai
| | - J Ni
- Department of Pathology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang
| | - Y Hu
- Department of Infection and Liver Diseases, Liver Research Center, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Y Weng
- Department of Neurology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang
| | - X Zhang
- Department of Neurology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang
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88
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Liu G, Liao Z, Xu X, Liang Y, Xiong Y, Ni J. Accuracy of parent-reported measles-containing vaccination status of children with measles. Public Health 2017; 144:92-95. [PMID: 28274390 DOI: 10.1016/j.puhe.2016.12.013] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Revised: 11/24/2016] [Accepted: 12/09/2016] [Indexed: 10/20/2022]
Abstract
OBJECTIVES The validity of parent-reported measles-containing vaccination history in children with measles has not been assessed. This study evaluated the accuracy of parental recall of measles-containing vaccination histories in Shenzhen, China. STUDY DESIGN A retrospective study was performed to compare the data from the electronic records with parental recall. The electronic records were regarded as accurate data about the children's measles-containing vaccination status. METHODS We collected data from the National Notifiable Diseases Surveillance System and the Immunization Program Information Management System in Shenzhen city, China. Between 2009 and 2014, there were 163 children with measles who had electronic vaccination records; the vaccination status of these cases was reported by the parents in the field epidemiological investigation. We validated parental recall with electronic records. RESULTS The agreement between parental recall and electronic records was 78.7%. The kappa value was 0.57. The parent-reported measles-containing vaccination rate was higher than the electronic record (48.5% vs 41.7%, χ2 = 53.64, P < 0.001). The true positive rate for parental recall was 82.4%, and the true negative rate was 75.8%. The positive predictive value was 70.9%, and the negative predictive value was 76.6%. CONCLUSIONS In children with measles, parental recall slightly overestimated the measles vaccination rate, and the vaccination status recalled by parents was in moderate agreement with the electronic record.
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Affiliation(s)
- G Liu
- Department of Immunization Program, Shenzhen Center for Disease Control and Prevention, Shenzhen, China
| | - Z Liao
- Department of Epidemiology and Biostatistics, Guangdong Medical University, Dongguan, China
| | - X Xu
- Department of Epidemiology and Biostatistics, Guangdong Medical University, Dongguan, China
| | - Y Liang
- Department of Epidemiology and Biostatistics, Guangdong Medical University, Dongguan, China
| | - Y Xiong
- School Clinic, Guangdong Medical University, Dongguan, China
| | - J Ni
- Department of Epidemiology and Biostatistics, Guangdong Medical University, Dongguan, China.
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89
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Suslova EV, Savilov SV, Ni J, Lunin VV, Aldoshin SM. The enthalpies of formation of carbon nanomaterials as a key factor for understanding their structural features. Phys Chem Chem Phys 2017; 19:2269-2275. [DOI: 10.1039/c6cp07570c] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Carbon nanomaterials (CNMs), such as carbon nanotubes (CNTs), carbon nanoflakes (CNFs) and their N-doped derivatives, show sufficient correlations between structure, composition and properties.
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Affiliation(s)
- E. V. Suslova
- Department of Chemistry
- Lomonosov Moscow State University
- Moscow
- Russia
| | - S. V. Savilov
- Department of Chemistry
- Lomonosov Moscow State University
- Moscow
- Russia
| | - J. Ni
- College of Physics
- Optoelectronics and Energy
- Soochow University
- Suzhou
- China
| | - V. V. Lunin
- Department of Chemistry
- Lomonosov Moscow State University
- Moscow
- Russia
| | - S. M. Aldoshin
- Department of Chemistry
- Lomonosov Moscow State University
- Moscow
- Russia
- Department of Fundamental Physico-Chemical Engineering
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90
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91
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Vonderohe CE, Mills KM, Asmus MD, Otto-Tice ER, Ni J, Maxwell CV, Richert BT, Radcliffe JS. 1206 The effect of reduced crude protein, synthetic amino acid supplemented diets on nutrient excretion in wean to finish swine. J Anim Sci 2016. [DOI: 10.2527/jam2016-1206] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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92
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Shi Z, Ni J. The experiment research of anatomic anterior cruciate ligament reconstruction assisting by 3D printing technology. Asia Pac J Sports Med Arthrosc Rehabil Technol 2016. [DOI: 10.1016/j.asmart.2016.07.146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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93
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Xia W, Li D, Wang G, Ni J, Zhuang J, Ha M, Wang J, Ye Y. Small activating RNA upregulates NIS expression: promising potential for hepatocellular carcinoma endoradiotherapy. Cancer Gene Ther 2016; 23:333-340. [PMID: 27608773 DOI: 10.1038/cgt.2016.36] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2016] [Accepted: 08/03/2016] [Indexed: 12/29/2022]
Abstract
Hepatocellular carcinoma (HCC) is one of the most common malignant tumors worldwide. Currently, the clinical strategies available for the treatment of HCC remain insufficient for the poor prognosis. Sodium/iodide symporter (NIS)-based radioiodine therapy is proposed as a promising therapeutic strategy for the treatment of HCC. However, it is difficult for HCC cells to trap iodine for the lower expression of NIS. Small activating RNA (saRNA) is a newly identified small double-stranded RNA (dsRNA) that can induce endogenous gene expression by targeting promoter sequences. Here, we designed an saRNA (saRNA-482) that targeted the NIS promoter sequences. In the cultured HepG2 cells and Hep3B cells, the expressions of NIS were upregulated after transfection of saRNA-482. In addition, the uptake of 125I increased in the cultured HepG2 and Hep3B cells transfected with saRNA-482. Furthermore, the cell viabilities were significantly inhibited in the saRNA-482-transfected HepG2 and Hep3B cells after 131I treatment. Meanwhile, the apoptosis of saRNA-482-transfected HepG2 and Hep3B cells significantly increased after 131I treatment. The results suggest that RNA activation-mediated upregulation of NIS may have an endoradiotherapeutic potential in the treatment of HCC.
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Affiliation(s)
- W Xia
- Department of Nuclear Medicine, Shanghai Seventh People's Hospital, Shanghai, China
| | - D Li
- Department of Nuclear Medicine, Shanghai Tenth People's Hospital, Shanghai, China
| | - G Wang
- Department of Nuclear Medicine, Shanghai Seventh People's Hospital, Shanghai, China
| | - J Ni
- Department of Nuclear Medicine, Shanghai Seventh People's Hospital, Shanghai, China
| | - J Zhuang
- Department of Nuclear Medicine, Shanghai Seventh People's Hospital, Shanghai, China
| | - M Ha
- Department of Infectious Diseases, Shanghai Seventh People's Hospital, Shanghai, China
| | - J Wang
- President's Office of Shanghai Seventh People's Hospital, Shanghai, China
| | - Y Ye
- Central Laboratory, Shanghai Seventh People's Hospital, Shanghai, China
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94
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Song X, Huang Q, Ni J, Yu Y, Shen Y. Knockout and functional analysis of two DExD/H-box family helicase genes in Sulfolobus islandicus REY15A. Extremophiles 2016; 20:537-46. [PMID: 27290726 DOI: 10.1007/s00792-016-0847-5] [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: 02/17/2016] [Accepted: 05/31/2016] [Indexed: 01/05/2023]
Abstract
DExD/H-box helicases represent the largest family of helicases. They belong to superfamily 2 helicases and participate in nucleotide metabolism, ribosome biogenesis, and nucleocytoplasmic transport. The biochemical properties and structures of some DExD/H-box helicases in the archaea have been documented, but many of them have not been characterized; and reports on in vivo functional analyses are limited. In this study, we attempted gene knockout of 8 putative DExD/H-box helicases in Sulfolobus islandicus REY15A and obtained two deletion mutants, SiRe_0681 and SiRe_1605. We determined that ΔSiRe_0681 grew faster than wild type cells in the presence of methyl methanesulfonate (MMS). Flow cytometry analysis showed that this strain had fewer G1/S phase cells than the wild type, and the genes coding for cell division proteins were up-regulated. The stain ΔSiRe_1605 was more sensitive to MMS than the wild type cell, and many nucleotide metabolism and DNA repair enzymes were found to be down-regulated. Intriguingly, deletion of either gene led to silencing simultaneously of over 80 genes located at a specific region. This study provides a novel insight into the in vivo functions of predicted DExD/H-box family helicases in the archaea.
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Affiliation(s)
- Xueguo Song
- State Key Laboratory of Microbial Technology, Shandong University, 27 Shanda Nan Rd., Jinan, 250100, China
| | - Qihong Huang
- State Key Laboratory of Microbial Technology, Shandong University, 27 Shanda Nan Rd., Jinan, 250100, China
| | - Jinfeng Ni
- State Key Laboratory of Microbial Technology, Shandong University, 27 Shanda Nan Rd., Jinan, 250100, China
| | - Yang Yu
- State Key Laboratory of Microbial Technology, Shandong University, 27 Shanda Nan Rd., Jinan, 250100, China
| | - Yulong Shen
- State Key Laboratory of Microbial Technology, Shandong University, 27 Shanda Nan Rd., Jinan, 250100, China.
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95
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Ngo A, Kuwahara K, Ni J. Difference in Nutrient Requirements for Optimal CD4+ and CD8+ T Cells Expansion Under Chemically-Defined Condition. Cytotherapy 2016. [DOI: 10.1016/j.jcyt.2016.03.208] [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: 10/21/2022]
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96
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Vonderohe CE, Mills KM, Jones AM, Asmus MD, Otto-Tice ER, Ni J, Richert BT, Radcliffe JS. 304 A comparison of antibiotic-free and conventional management on nutrient excretion in swine. J Anim Sci 2016. [DOI: 10.2527/msasas2016-304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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97
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Song X, Ni J, Shen Y. Structure-Based Genetic Analysis of Hel308a in the Hyperthermophilic Archaeon Sulfolobus islandicus. J Genet Genomics 2016; 43:405-13. [PMID: 27317310 DOI: 10.1016/j.jgg.2016.03.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2015] [Revised: 03/06/2016] [Accepted: 03/07/2016] [Indexed: 10/22/2022]
Abstract
In archaea, the HEL308 homolog Hel308a (or Hjm) is implicated in stalled replication fork repair. The biochemical properties and structures of Hjm homologs are well documented, but in vivo mechanistic information is limited. Herein, a structure-based functional analysis of Hjm was performed in the genetically tractable hyperthermophilic archaeon, Sulfolobus islandicus. Results showed that domain V and residues within it, which affect Hjm activity and regulation, are essential and that the domain V-truncated mutants and site-directed mutants within domain V cannot complement hjm chromosomal deletion. Chromosomal hjm deletion can be complemented by ectopic expression of hjm under the control of its native promoter but not an artificial arabinose promoter. Cellular Hjm levels are kept constant under ultraviolet (UV) and methyl methanesulfonate (MMS) treatment conditions in a strain carrying a plasmid to induce Hjm overexpression. These results suggest that Hjm expression and activity are tightly controlled, probably at the translational level.
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Affiliation(s)
- Xueguo Song
- State Key Laboratory of Microbial Technology, Shandong University, Jinan 250100, China
| | - Jinfeng Ni
- State Key Laboratory of Microbial Technology, Shandong University, Jinan 250100, China
| | - Yulong Shen
- State Key Laboratory of Microbial Technology, Shandong University, Jinan 250100, China.
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98
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Li BL, Zhang N, Huang JX, Qiu QQ, Tian H, Ni J, Song XR, Yuen VM, Irwin MG. A comparison of intranasal dexmedetomidine for sedation in children administered either by atomiser or by drops. Anaesthesia 2016; 71:522-8. [DOI: 10.1111/anae.13407] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/18/2016] [Indexed: 01/06/2023]
Affiliation(s)
- B. L. Li
- Department of Anaesthesiology; Guangzhou Women and Children's Medical Centre; Guangzhou Medical University; Guangzhou China
| | - N. Zhang
- Department of Anaesthesiology; Guangzhou Women and Children's Medical Centre; Guangzhou Medical University; Guangzhou China
| | - J. X. Huang
- Department of Anaesthesiology; Guangzhou Women and Children's Medical Centre; Guangzhou Medical University; Guangzhou China
| | - Q. Q. Qiu
- Department of Anaesthesiology; Guangzhou Women and Children's Medical Centre; Guangzhou Medical University; Guangzhou China
| | - H. Tian
- Department of Anaesthesiology; Guangzhou Women and Children's Medical Centre; Guangzhou Medical University; Guangzhou China
| | - J. Ni
- Department of Anaesthesiology; Guangzhou Women and Children's Medical Centre; Guangzhou Medical University; Guangzhou China
| | - X. R. Song
- Department of Anaesthesiology; Guangzhou Women and Children's Medical Centre; Guangzhou Medical University; Guangzhou China
| | - V. M. Yuen
- Department of Anaesthesiology; University of Hong Kong Shenzhen Hospital; Shenzhen China
| | - M. G. Irwin
- Department of Anaesthesiology; University of Hong Kong; Hong Kong China
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99
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Ni J, Park J, Chen A, Lee E, Walsworth M, Lee H. Retrograde popliteal arterial access for recanalization of lower extremity chronic total occlusion (CTO). J Vasc Interv Radiol 2016. [DOI: 10.1016/j.jvir.2015.12.195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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100
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Liu Y, Wang DD, Ni J, Zhang SF, Jin XJ, Lv SJ, Wang ZW, Lei JF. Ordered RTiO2@ATiO2 architecture for dye-sensitized solar cell applications. RSC Adv 2016. [DOI: 10.1039/c6ra21420g] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
RTiO2@ATiO2 architectures are constructed, in which 1D rutile TiO2 (RTiO2) arrays allow a fast electron transport and branched anatase TiO2 (ATiO2) particles benefit the dye harvesting.
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Affiliation(s)
- Y. L. Liu
- School of Materials and Engineering
- Henan University of Science and Technology
- Luoyang 471023
- China
| | - D. D. Wang
- School of Physics and Engineering
- Henan University of Science and Technology
- Luoyang 471023
- China
| | - J. Ni
- School of Physics and Engineering
- Henan University of Science and Technology
- Luoyang 471023
- China
| | - S. F. Zhang
- School of Physics and Engineering
- Henan University of Science and Technology
- Luoyang 471023
- China
| | - X. J. Jin
- School of Physics and Engineering
- Henan University of Science and Technology
- Luoyang 471023
- China
| | - S. J. Lv
- School of Physics and Engineering
- Henan University of Science and Technology
- Luoyang 471023
- China
| | - Z. W. Wang
- School of Physics and Engineering
- Henan University of Science and Technology
- Luoyang 471023
- China
- National Laboratory of Solid State Microstructures
| | - J. F. Lei
- School of Physics and Engineering
- Henan University of Science and Technology
- Luoyang 471023
- China
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