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Cao B, Fan XT, Wang RH, Luan XL, Qian CY, Yu JJ, Liu HC, Li MC, Li GL, Zhao XQ, Yuan XQ, Wan KL. [Preliminary evaluation of immunogenicity and protective effect of multicomponent recombinant protein vaccine EPRHP014 against tuberculosis]. Zhonghua Liu Xing Bing Xue Za Zhi 2023; 44:1653-1660. [PMID: 37875456 DOI: 10.3760/cma.j.cn112338-20230217-00088] [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: 10/26/2023]
Abstract
Objective: To evaluate the immunogenicity and protective effect of a multicomponent recombinant protein vaccine EPRHP014 constructed independently and provide a scientific basis for developing new tuberculosis (TB) vaccine and effective prevention and control of TB. Methods: Three full-length Mycobacterium (M.) tuberculosis protein antigens (EsxH, Rv2628, and HspX) and two epitope-predicted and optimized epitope-dominant protein antigens (nPPE18 and nPstS1) were selected, from which five protein antigens were used to construct a protein antigen composition EPRHP014, including a fusion expression multi-component protein antigen (EPRHP014f) and a multi-component mixed protein antigen (EPRHP014m) formed with the five single protein using clone, purification, and purification respectively. Multicomponent protein vaccines EPRHP014f and EPRHP014m were prepared with aluminum adjuvant, and the BCG vaccine was used as a control. ELISA detected the titer of serum-specific antibodies, the secretion of various cytokines was detected by ELISpot and Luminex, and immune protection was observed by the M. tuberculosis growth inhibition test in vitro. The results were statistically analyzed by t-test or rank sum test, and P<0.05 was considered a statistically significant difference. Results: Mice Immunized with EPRHP014m and EPRHP014f could produce highly effective IgG antibodies and their subtypes IgG1 and IgG2a, and the antibody titers were similar to those of mice immunized with BCG, with no statistical significance (P>0.05). The number of spot-forming cells (SFC) secreting IFN-γ and IL-4 induced by EPRHP014f group was significantly higher than those by EPRHP014m group and BCG group (P<0.05), but there was no significant difference in the number of SFC for IFN-γ and IL-4 induced between EPRHP014m group and BCG group (P>0.05). The secretion levels of GM-CSF and IL-12p70 induced by the EPRHP014m group were higher than those of the BCG group (P<0.05), but there was no significant difference in the levels of IL-6 and IL-10 induced between EPRHP014m group and BCG group (P>0.05). There was no significant difference in the secretions of IL-6, IL-10, IL-12, and GM-CSF between the EPRHP014f and BCG groups (P>0.05). EPRHP014m group, EPRHP014f group, and BCG group had obvious antibacterial effects in vitro, and the difference was insignificant (P>0.05). Conclusion: Both EPRHP014f and EPRHP014m can induce strong humoral and cellular immune responses in mice after immunization, and have a strong ability to inhibit the growth of M. tuberculosis in vitro, indicating that the antigen composition EPRHP014 has good potential in the development and application of TB vaccine.
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Affiliation(s)
- B Cao
- School of Public Health, University of South China, Hengyang 421001, China National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention/State Key Laboratory of Infectious Disease Prevention and Control, Beijing 102206, China
| | - X T Fan
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention/State Key Laboratory of Infectious Disease Prevention and Control, Beijing 102206, China
| | - R H Wang
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention/State Key Laboratory of Infectious Disease Prevention and Control, Beijing 102206, China
| | - X L Luan
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention/State Key Laboratory of Infectious Disease Prevention and Control, Beijing 102206, China
| | - C Y Qian
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention/State Key Laboratory of Infectious Disease Prevention and Control, Beijing 102206, China School of Life Sciences, College of Laboratory Medicine, Wenzhou Medical University, Wenzhou 325035, China
| | - J J Yu
- School of Public Health, University of South China, Hengyang 421001, China National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention/State Key Laboratory of Infectious Disease Prevention and Control, Beijing 102206, China
| | - H C Liu
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention/State Key Laboratory of Infectious Disease Prevention and Control, Beijing 102206, China
| | - M C Li
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention/State Key Laboratory of Infectious Disease Prevention and Control, Beijing 102206, China
| | - G L Li
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention/State Key Laboratory of Infectious Disease Prevention and Control, Beijing 102206, China
| | - X Q Zhao
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention/State Key Laboratory of Infectious Disease Prevention and Control, Beijing 102206, China
| | - X Q Yuan
- School of Public Health, University of South China, Hengyang 421001, China
| | - K L Wan
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention/State Key Laboratory of Infectious Disease Prevention and Control, Beijing 102206, China
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Huang HL, Zhang QX, Huang F, Long XY, Song Z, Xiao B, Li GL, Ma CY, Liu D. TMEM151A variants associated with paroxysmal kinesigenic dyskinesia. Hum Genet 2023; 142:1017-1028. [PMID: 36856871 DOI: 10.1007/s00439-023-02535-3] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Accepted: 02/16/2023] [Indexed: 03/02/2023]
Abstract
TMEM151A, located at 11q13.2 and encoding transmembrane protein 151A, was recently reported as causative for autosomal dominant paroxysmal kinesigenic dyskinesia (PKD). Here, through comprehensive analysis of sporadic and familial cases, we expand the clinical and mutation spectrum of PKD. In doing so, we clarify the clinical and genetic features of Chinese PKD patients harboring TMEM151A variants and further explore the relationship between TMEM151A mutations and PKD. Whole exome sequencing was performed on 26 sporadic PKD patients and nine familial PKD pedigrees without PRRT2 variants. Quantitative real-time PCR was used to assess the gene expression of frameshift mutant TMEM151A in a PKD patient. TMEM151A variants reported to date were reviewed. Four TMEM151A variants were detected in four unrelated families with 12 individuals, including a frameshift mutation [c.606_607insA (p.Val203fs)], two missense mutations [c.166G > A (p.Gly56Arg) and c.791T > C (p.Val264Ala)], and a non-pathogenic variant [c.994G > A (p.Gly332Arg)]. The monoallelic frameshift mutation [c.606_607insA (p.Val203fs)] may cause TMEM151A mRNA decay, suggesting a potential pathogenic mechanism of haploinsufficiency. Patients with TMEM151A variants had short-duration attacks and presented with dystonia. Our study provides a detailed clinical description of PKD patients with TMEM151A mutations and reports a new disease-causing mutation, expanding the known phenotypes caused by TMEM151A mutations and providing further detail about the pathoetiology of PKD.
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Affiliation(s)
- Hua Lin Huang
- Department of Neurology, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
- Department of Obstetrics and Gynecology, Reproductive Medicine Center, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Qing Xia Zhang
- Department of Neurology, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Fei Huang
- Department of Obstetrics and Gynecology, Reproductive Medicine Center, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xiao Yan Long
- Department of Neurology, The Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Zhi Song
- Department of Neurology, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Bo Xiao
- Department of Neurology, The Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Guo Liang Li
- Department of Neurology, The Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Cai Yu Ma
- Department of Neurology, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China.
| | - Ding Liu
- Department of Neurology, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China.
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3
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Hong M, Wang P, Shangguan T, Li GL, Bian RP, He W, Jiang W, Chen JP. [Correction of the pathogenic mutation in the G6PC3 gene by adenine base editing in mutant embryos]. Zhonghua Xue Ye Xue Za Zhi 2023; 44:308-315. [PMID: 37357000 DOI: 10.3760/cma.j.issn.0253-2727.2023.04.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/27/2023]
Abstract
Objective: To determine whether the adenine base editor (ABE7.10) can be used to fix harmful mutations in the human G6PC3 gene. Methods: To investigate the safety of base-edited embryos, off-target analysis by deep sequencing was used to examine the feasibility and editing efficiency of various sgRNA expression vectors. The human HEK293T mutation models and human embryos were also used to test the feasibility and editing efficiency of correction. Results: ①The G6PC3(C295T) mutant cell model was successfully created. ②In the G6PC3(C295T) mutant cell model, three distinct Re-sgRNAs were created and corrected, with base correction efficiency ranging from 8.79% to 19.56% . ③ ABE7.10 could successfully fix mutant bases in the human pathogenic embryo test; however, base editing events had also happened in other locations. ④ With the exception of one noncoding site, which had a high safety rate, deep sequencing analysis revealed that the detection of 32 probable off-target sites was <0.5% . Conclusion: This study proposes a new base correction strategy based on human pathogenic embryos; however, it also produces a certain nontarget site editing, which needs to be further analyzed on the PAM site or editor window.
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Affiliation(s)
- M Hong
- Guizhou University Medical College, Guiyang 550025, China
| | - P Wang
- Department of Hematology, the First Affiliated Hospital of Army Medical University (Southwest Hospital), Chongqing 400038, China
| | - T Shangguan
- Department of Reproductive Medicine, the First Affiliated Hospital of Army Medical University (Southwest Hospital), Chongqing 400038, China
| | - G L Li
- Department of Reproductive Medicine, Third Affiliated Hospital of Guangzhou Medical University, Guangzhou 510150, China
| | - R P Bian
- Guizhou University Medical College, Guiyang 550025, China
| | - W He
- Department of Reproductive Medicine, the First Affiliated Hospital of Army Medical University (Southwest Hospital), Chongqing 400038, China
| | - W Jiang
- Department of Hematology, the First Affiliated Hospital of Army Medical University (Southwest Hospital), Chongqing 400038, China
| | - J P Chen
- Department of Hematology, the First Affiliated Hospital of Army Medical University (Southwest Hospital), Chongqing 400038, China
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Zhang C, Hou Q, Guo TT, Zhong JT, Ren H, Li GL. [The effect of Wendler Glottoplasty to elevate vocal pitch in transgender women]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2023; 58:139-144. [PMID: 36748155 DOI: 10.3760/cma.j.cn115330-20220518-00275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Objective: To evaluate the effect of Wendler Glottoplasty to elevate vocal pitch in transgender women. Methods: The voice parameters of pre-and 3-month post-surgery of 29 transgender women who underwent Wendler Glottoplasty in department of otorhinolaryngology head and neck surgery of Beijing Friendship Hospital from January, 2017 to October, 2020 were retrospectively analyzed. The 29 transgender women ranged in age from 19-47 (27.0±6.3) years old. Subjective evaluation was performed using Transsexual Voice Questionnaire for Male to Female (TVQMtF). Objective parameters included fundamental frequency (F0), highest pitch, lowest pitch, habitual volume, Jitter, Shimmer, maximal phonation time (MPT), noise to harmonic ratio (NHR) and formants frequencies(F1, F2, F3, F4). SPSS 25.0 software was used for statistically analysis. Results: Three months after surgery, the score of TVQMtF was significantly decreased [(89.9±14.7) vs. (50.4±13.6), t=11.49, P<0.001]. The F0 was significantly elevated [(152.7±23.3) Hz vs. (207.7±45.9) Hz, t=-6.03, P<0.001]. Frequencies of F1, F2 and F3 were significantly elevated. No statistical difference was observed in the frequencies of F4. The highest pitch was not significantly altered while the lowest pitch was significantly elevated [(96.8±17.7) Hz vs. (120.0±28.9) Hz, t=-3.71, P=0.001]. Habitual speech volume was significantly increased [(60.0±5.2) dB vs. (63.6±9.6) dB, t=-2.12, P=0.043]. Jitter, Shimmer, NHR and MPT were not obviously altered (P>0.05). Conclusions: Wendler Glottoplasty could notably elevate the vocal pitch, formants frequencies and degree of vocal femininity in transgender women without affecting phonation ability and voice quality. It can be an effective treatment modality for voice feminization.
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Affiliation(s)
- C Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - Q Hou
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - T T Guo
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - J T Zhong
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - H Ren
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - G L Li
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
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Sun ZZ, Wang G, Wang L, Li GL, Liu HD, Li BW, Han HL, Zhou Y, Zhang YY, Zhang XL, Wu W. [The role of continuous 48 h oropharyngeal pH monitoring in the diagnosis of laryngopharyngeal reflux disease]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2022; 57:1191-1196. [PMID: 36319124 DOI: 10.3760/cma.j.cn115330-20220530-00318] [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: 06/16/2023]
Abstract
Objective: To investigate the daily variation of LPR and the significance of 48-hour oropharyngeal pH monitoring in the diagnosis of LPRD. Methods: 72 subjects with suspected LPRD who were treated in our department from June 2018 to June 2021 were included. All patients were hospitalized to complete continuous 48-hour oropharyngeal Dx-pH monitoring. The consistency of Ryan index and W index and the correlation of various reflux parameters between the first and second 24-hour were compared. SPSS 24.0 was used for statistical analysis. Results: All 72 subjects successfully completed 48-hour oropharyngeal Dx-pH monitoring. Ryan index was positive in 11 cases (15.2%) in the first 24-hour, in 17 cases (23.6%) in the second 24-hour, in 5 cases (6.9%) both first and second, and in 23 cases (31.9%) in either 24-hour, Kappa=0.211 (P=0.064), 18 cases (25%) had inconsistent results of the first 24-hour and the second 24-hour, and there was no significant difference in the positive rate between the first and second (P=0.234). The number of positive cases in 48-hour monitoring increased by 109.1% compared with 24-hour monitoring.For W index, 49 cases (68.1%) were positive in the first 24-hourf 53 cases (73.6%) were positive in the second 24-hour, 42 cases (58.3%) were positive both first and second, and 58 cases (80.6%) were positive in either 24-hour, Kappa=0.477 (P<0.001), 16 cases (22.2%) had inconsistent results of the first and second, and there was no significant difference in the positive rate between the first and second (P=0.804). The number of positive cases in 48-hour monitoring increased by 18.4% compared with 24-hour monitoring. There was no significant difference in all the reflux parameters of first and second (P>0.05). The correlation comparison showed that the correlation of various reflux parameters in the upright position was lower than that in the supine position. Conclusion: Laryngeal reflux has daily variability. Extending the monitoring time of Dx-pH to 48-hour can help reduce the missed diagnosis caused by daily variability; the use of W index can reduce the influence of daily variability on the diagnostic results of LPRD.
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Affiliation(s)
- Z Z Sun
- Department of Otorhinolaryngology Head and Neck Surgery of PLA Strategic Suport Force Medical Center, Beijing 100101, China
| | - G Wang
- Research Department 4 of PLA Strategic Suport Force Medical Center, Beijing 100101, China State Environmental Protection Key Laboratory of Environmental Sense Organ Stress and Health, Beijing 100101, China
| | - L Wang
- Department of Otorhinolaryngology Head and Neck Surgery of PLA Strategic Suport Force Medical Center, Beijing 100101, China
| | - G L Li
- Department of Otorhinolaryngology Head and Neck Surgery of Beijing Friendship Hospital, Beijing 100050, China
| | - H D Liu
- Department of Otorhinolaryngology Head and Neck Surgery of PLA Strategic Suport Force Medical Center, Beijing 100101, China
| | - B W Li
- Department of Otorhinolaryngology Head and Neck Surgery of PLA Strategic Suport Force Medical Center, Beijing 100101, China
| | - H L Han
- Department of Otorhinolaryngology Head and Neck Surgery of PLA Strategic Suport Force Medical Center, Beijing 100101, China
| | - Y Zhou
- Department of Otorhinolaryngology Head and Neck Surgery of PLA Strategic Suport Force Medical Center, Beijing 100101, China
| | - Y Y Zhang
- Department of Otorhinolaryngology Head and Neck Surgery of PLA Strategic Suport Force Medical Center, Beijing 100101, China
| | - X L Zhang
- Department of Otorhinolaryngology Head and Neck Surgery of PLA Strategic Suport Force Medical Center, Beijing 100101, China
| | - W Wu
- Department of Otorhinolaryngology Head and Neck Surgery of PLA Strategic Suport Force Medical Center, Beijing 100101, China State Environmental Protection Key Laboratory of Environmental Sense Organ Stress and Health, Beijing 100101, China
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Zhu QL, Li GL. Laparoscopic Right Hepatectomy is as Safe and Feasible as Open Procedure in the Treatment of Liver Tumors: Meta-analysis. Indian J Surg 2022. [DOI: 10.1007/s12262-021-02824-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Song Y, Chen K, Wang J, Liu Y, Yang J, Zhang D, Qi T, Li GL. Antibacterial
self‐healing
anticorrosion coatings from single capsule system. J Appl Polym Sci 2021. [DOI: 10.1002/app.51214] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Yan Song
- National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology Institute of Process Engineering, Chinese Academy of Sciences Beijing China
| | - Kaifeng Chen
- Department of Coating Research Xiamen Advanced Materials Academy of Luoyang Ship Material Research Institute Xiamen China
- Department of Coating Research Science and Technology on Marine Corrosion and Protection Laboratory Qingdao China
| | - Jingjing Wang
- Department of Coating Research Xiamen Advanced Materials Academy of Luoyang Ship Material Research Institute Xiamen China
- Department of Coating Research Science and Technology on Marine Corrosion and Protection Laboratory Qingdao China
| | - Yuan Liu
- National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology Institute of Process Engineering, Chinese Academy of Sciences Beijing China
| | - Jingzhi Yang
- National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology Institute of Process Engineering, Chinese Academy of Sciences Beijing China
- National Materials Corrosion and Protection Data Center Institute for Advanced Materials and Technology, University of Science and Technology Beijing Beijing China
| | - Dawei Zhang
- National Materials Corrosion and Protection Data Center Institute for Advanced Materials and Technology, University of Science and Technology Beijing Beijing China
| | - Tao Qi
- National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology Institute of Process Engineering, Chinese Academy of Sciences Beijing China
| | - Guo Liang Li
- National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology Institute of Process Engineering, Chinese Academy of Sciences Beijing China
- State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical Technology Beijing China
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Luo Y, Wang J, Cui X, Fu Y, Li GL, Wang W. Surface‐modified
mesoporous silica nanorods for the
highly aging
resistance rubber through controlled release of antioxidant. POLYM ADVAN TECHNOL 2021. [DOI: 10.1002/pat.5348] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Yang Luo
- State Key Laboratory of Organic‐Inorganic Composites and Key Laboratory of Beijing City on Preparation and Processing of Novel Polymer Materials Beijing University of Chemical Technology Beijing China
- National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering Chinese Academy of Sciences Beijing China
| | - Jun‐Peng Wang
- National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering Chinese Academy of Sciences Beijing China
| | - Xurui Cui
- National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering Chinese Academy of Sciences Beijing China
| | - Ye Fu
- Beijing Key Laboratory of Quality Evaluation Technology for Hygiene and Safety of Plastics, College of Chemistry and Materials Engineering Beijing Technology and Business University Beijing China
| | - Guo Liang Li
- National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering Chinese Academy of Sciences Beijing China
- State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical Technology Beijing China
| | - Wencai Wang
- State Key Laboratory of Organic‐Inorganic Composites and Key Laboratory of Beijing City on Preparation and Processing of Novel Polymer Materials Beijing University of Chemical Technology Beijing China
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Ding XW, Zheng ZC, Zhao Q, Zhai G, Liang H, Wu X, Zhu ZG, Wang HJ, He QS, He XL, Du YA, Chen LC, Hua YW, Huang CM, Xue YW, Zhou Y, Zhou YB, Wu D, Fang XD, Dai YG, Zhang HW, Cao JQ, Li LP, Chai J, Tao KX, Li GL, Jie ZG, Ge J, Xu ZF, Zhang WB, Li QY, Zhao P, Ma ZQ, Yan ZL, Zheng GL, Yan Y, Tang XL, Zhou X. [A multi-center retrospective study of perioperative chemotherapy for gastric cancer based on real-world data]. Zhonghua Wei Chang Wai Ke Za Zhi 2021; 24:403-412. [PMID: 34000769 DOI: 10.3760/cma.j.cn.441530-20200111-00014] [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 explore the effect of perioperative chemotherapy on the prognosis of gastric cancer patients under real-world condition. Methods: A retrospective cohort study was carried out. Real world data of gastric cancer patients receiving perioperative chemotherapy and surgery + adjuvant chemotherapy in 33 domestic hospitals from January 1, 2014 to January 31, 2016 were collected. Inclusion criteria: (1) gastric adenocarcinoma was confirmed by histopathology, and clinical stage was cT2-4aN0-3M0 (AJCC 8th edition); (2) D2 radical gastric cancer surgery was performed; (3) at least one cycle of neoadjuvant chemotherapy (NAC) was completed; (4) at least 4 cycles of adjuvant chemotherapy (AC) [SOX (S-1+oxaliplatin) or CapeOX (capecitabine + oxaliplatin)] were completed. Exclusion criteria: (1) complicated with other malignant tumors; (2) radiotherapy received; (3) patients with incomplete data. The enrolled patients who received neoadjuvant chemotherapy and adjuvant chemotherapy were included in the perioperative chemotherapy group, and those who received only postoperative adjuvant chemotherapy were included in the surgery + adjuvant chemotherapy group. Propensity score matching (PSM) method was used to control selection bias. The primary outcome were overall survival (OS) and progression-free survival (PFS) after PSM. OS was defined as the time from the first neoadjuvant chemotherapy (operation + adjuvant chemotherapy group: from the date of operation) to the last effective follow-up or death. PFS was defined as the time from the first neoadjuvant chemotherapy (operation + adjuvant chemotherapy group: from the date of operation) to the first imaging diagnosis of tumor progression or death. The Kaplan-Meier method was used to estimate the survival rate, and the Cox proportional hazards model was used to evaluate the independent effect of perioperative chemo therapy on OS and PFS. Results: 2 045 cases were included, including 1 293 cases in the surgery+adjuvant chemotherapy group and 752 cases in the perioperative chemotherapy group. After PSM, 492 pairs were included in the analysis. There were no statistically significant differences in gender, age, body mass index, tumor stage before treatment, and tumor location between the two groups (all P>0.05). Compared with the surgery + adjuvant chemotherapy group, patients in the perioperative chemotherapy group had higher proportion of total gastrectomy (χ(2)=40.526, P<0.001), smaller maximum tumor diameter (t=3.969, P<0.001), less number of metastatic lymph nodes (t=1.343, P<0.001), lower ratio of vessel invasion (χ(2)=11.897, P=0.001) and nerve invasion (χ(2)=12.338, P<0.001). In the perioperative chemotherapy group and surgery + adjuvant chemotherapy group, 24 cases (4.9%) and 17 cases (3.4%) developed postoperative complications, respectively, and no significant difference was found between two groups (χ(2)=0.815, P=0.367). The median OS of the perioperative chemotherapy group was longer than that of the surgery + adjuvant chemotherapy group (65 months vs. 45 months, HR: 0.74, 95% CI: 0.62-0.89, P=0.001); the median PFS of the perioperative chemotherapy group was also longer than that of the surgery+adjuvant chemotherapy group (56 months vs. 36 months, HR=0.72, 95% CI:0.61-0.85, P<0.001). The forest plot results of subgroup analysis showed that both men and women could benefit from perioperative chemotherapy (all P<0.05); patients over 45 years of age (P<0.05) and with normal body mass (P<0.01) could benefit significantly; patients with cTNM stage II and III presented a trend of benefit or could benefit significantly (P<0.05); patients with signet ring cell carcinoma benefited little (P>0.05); tumors in the gastric body and gastric antrum benefited more significantly (P<0.05). Conclusion: Perioperative chemotherapy can improve the prognosis of gastric cancer patients.
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Affiliation(s)
- X W Ding
- Department of Gastric surgery, Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer Prevention and Therapy, Tianjin 300060, China
| | - Z C Zheng
- Department of Gastric Surgery, Cancer Hospital of China Medical University (Liaoning Cancer Hospital and Institute), Shenyang 110042, China
| | - Q Zhao
- The Third Department of Surgery, The Fourth Hospital, Hebei Medical University, Shijiazhuang 050011, China
| | - G Zhai
- Department of General Surgery, Shanxi Provincial Tumor Hospital, Taiyuan 030013, China
| | - H Liang
- Department of Gastric surgery, Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer Prevention and Therapy, Tianjin 300060, China
| | - X Wu
- Department of General Surgery, The First Medical Center, Chinese PLA General Hospital, Beijing 100853, China
| | - Z G Zhu
- Department of Surgery, Ruijin Hospital, Shanghai JiaoTong University School of Medicine, Shanghai Institute of Digestive Surgery, Shanghai Key Laboratory of Gastric Neoplasms, Shanghai 200025, China
| | - H J Wang
- Department of Gastrointestinal Surgery, Affiliated Tumor Hospital, Xinjiang Medical University, Urumqi 830011, China
| | - Q S He
- Department of General Surgery, Qilu Hospital of Shandong University, Jinan 250012, China
| | - X L He
- Department of General Surgery, Tangdu Hospital, The Air Force Medical University, Xi'an 710038, China
| | - Y A Du
- Department of Gastric Surgery, Zhejiang Cancer Hospital, Hangzhou 310022, China
| | - L C Chen
- Department of Gastrointestinal Surgery, Fujian Provincial Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou 350014, China
| | - Y W Hua
- Department of General Surgery, The Affiliated Tumor Hospital of Zhengzhou University, Zhengzhou 450008, China
| | - C M Huang
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou 350004, China
| | - Y W Xue
- Department of Gastrointestinal Surgery, Harbin Medical University Cancer Hospital, Harbin 150081, China
| | - Y Zhou
- Department of Gastic Surgery, Afiliated CancerHospital, Fudan University, Shanghai 200030, China
| | - Y B Zhou
- Department of Gastrointestinal Surgery, Affiliated Hospital of Qingdao University, Qingdao 266003, China
| | - D Wu
- Department of Gastrointestinal Surgery, Second Affiliated Hospital, Zhejiang University, Hangzhou 310009, China
| | - X D Fang
- Department of Gastrointestinal Colorectal And Anal Surgery, China-Japan Union Hospital of Jilin University, Changchun 130033, China
| | - Y G Dai
- Department of Gastrointestinal Surgery, Yunnan Cancer Hospital, Kunming 650118, China
| | - H W Zhang
- Diagnosis and Treatment Center of Digestive Disease, Wuxi Mingci cardiovascular Hospital, Wuxi 214101, China
| | - J Q Cao
- Department of Gastrointestinal Surgery, Second Affiliated Hospital, Nanchang University, Nanchang 330006, China
| | - L P Li
- Department of Gastrointestinal Surgery, The Affiliated Provincial Hospital, Shandong First Medical University, Jinan 250021, China
| | - J Chai
- Department of Gastric Surgery, The Affiliated Shandong Tumor Hospital, Shandong University, Jinan 250117, China
| | - K X Tao
- Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - G L Li
- Department of General Surgery, Jinling Hospital/General Hospital of Eastern Theater Command, School of Medicine, Nanjing University, Nanjing 210002, China
| | - Z G Jie
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - J Ge
- Department of Gastrointestinal Surgery Xiangya Hospital of Central South University, Changsha 410008, China
| | - Z F Xu
- Department of General Surgery, The Affiliated Hospital, Shandong Academy of Medical Sciences, Jinan 250031, China
| | - W B Zhang
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Xinjiang Medical University, Urumqi 830000, China
| | - Q Y Li
- Departerment of Abdominal Surgery, Jiangxi Cancer Hospital, Nanchang 330029, China
| | - P Zhao
- Departerment of Gastrointestinal Surgery, Sichuan Tumor Hospital, Chengdu 610041, China
| | - Z Q Ma
- Department of General Surgery, Peking Uninon Medical College (PUMC) Hospital, Chinese Academy of Medical Sciences (CAMS) and PUMC, Beijing 100730, China
| | - Z L Yan
- Department of Gastrointestinal Surgery, Ningbo First Hospital, Ningbo 315000, China
| | - G L Zheng
- Department of Gastric surgery, Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer Prevention and Therapy, Tianjin 300060, China
| | - Y Yan
- Department of General Surgery, The First Medical Center, Chinese PLA General Hospital, Beijing 100853, China
| | - X L Tang
- Department of General Surgery, Qilu Hospital of Shandong University, Jinan 250012, China
| | - X Zhou
- The Third Department of Surgery, The Fourth Hospital, Hebei Medical University, Shijiazhuang 050011, China
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Liang H, Li GL, Liu J, Fu M, Huang H, Zhao K, Wei Y, Xiao J. The application value of PAX1 and ZNF582 gene methylation in high grade intraepithelial lesion and cervical cancer. Clin Transl Oncol 2020; 23:283-288. [PMID: 32514824 DOI: 10.1007/s12094-020-02416-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2020] [Accepted: 05/28/2020] [Indexed: 10/24/2022]
Abstract
PURPOSE To investigate the possibility of using the methylation level of PAX1/ZNF582 gene as molecular marker to differentiate the progression of cervical cancer. METHODS From January 2016 to March 2018, 150 patients, who were admitted to Cervical Disease Diagnosis and Treatment Center of Xuzhu Maternity and Child Care Hospital, were enrolled in this study. Patients were classified into chronic cervicitis (for 19 cases), low-grade squamous intraepithelial lesion (LSIL) (18 cases), high-grade squamous intraepithelial lesion (HSIL) (37 cases) and squamous cell carcinoma (SCC) (31 cases). All patients underwent several tests including Thin-prep cytology test (TCT), HPV DNA detection and detection of methylation level of PAX1/ZNF582 genes. RESULTS For diagnosis of HSIL, the area under curve (AUC) was 0.878 (95% CI 0.806 ~ 0.950); the threshold for PAX1 was 12.285, the sensitivity and specificity were 91.9% and 72.8%, respectively. The AUC of ZNF582 gene detection was 0.900 (95% CI 0.842 ~ 0.959), the threshold was 11.56, while the sensitivity and specificity were 97.3% and 76.7%, respectively. Among various tests we conducted, PAX gene detection methods showed the highest specificity (97.30%). PAX1/ZNF582 gene detection method demonstrated the highest accuracy. CONCLUSIONS For patients with high-grade cervical lesion and cervical cancer, the methylation level of PAX1/ZNF582 gene could be applied as a noteworthy biomarker for diagnosis and for cervical cancer classification.
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Affiliation(s)
- H Liang
- Xuzhou Maternity and Child Health Care Hospital, No. 46 Heping Road, Xuzhou, 221009, People's Republic of China.
| | - G L Li
- Xuzhou Maternity and Child Health Care Hospital, No. 46 Heping Road, Xuzhou, 221009, People's Republic of China
| | - J Liu
- Xuzhou Maternity and Child Health Care Hospital, No. 46 Heping Road, Xuzhou, 221009, People's Republic of China
| | - M Fu
- Xuzhou Maternity and Child Health Care Hospital, No. 46 Heping Road, Xuzhou, 221009, People's Republic of China
| | - H Huang
- Xuzhou Maternity and Child Health Care Hospital, No. 46 Heping Road, Xuzhou, 221009, People's Republic of China
| | - K Zhao
- Xuzhou Maternity and Child Health Care Hospital, No. 46 Heping Road, Xuzhou, 221009, People's Republic of China
| | - Y Wei
- Xuzhou Maternity and Child Health Care Hospital, No. 46 Heping Road, Xuzhou, 221009, People's Republic of China
| | - J Xiao
- Xuzhou Maternity and Child Health Care Hospital, No. 46 Heping Road, Xuzhou, 221009, People's Republic of China
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11
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Gao M, Yang TT, Li GL, Chen R, Liu HC, Gao Q, Wan KL, Feng SD. [Analysis on drug resistance-associated mutations of multi-drug resistant Mycobacterium tuberculosis based on whole-genome sequencing in China]. Zhonghua Liu Xing Bing Xue Za Zhi 2020; 41:770-775. [PMID: 32447923 DOI: 10.3760/cma.j.cn112338-20191111-00800] [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 analyze the resistance mutational profiles of multi-drug resistant Mycobacterium tuberculosis in China and the correlation between major mutation types and genotypes based on the whole-genome sequencing data. Methods: Search and download of the genome-wide sequencing data of M. tuberculosis published in China by August 2019 on NCBI database were conducted. Mutation frequency of drug resistance-related gene loci based on whole-genome sequencing was used to predict the molecular susceptibility of strains, and the correlation between mutation types and genotypes was analyzed. Results: According to the results of molecular resistance and susceptibility profiles, 1 024 MDR strains were identified from 2 019 M. tuberculosis strains. The major mutation types of resistance-related genes to common drugs were katG S315T (73.2%, isoniazid), rpoB S450L (63.1%, rifampicin), rpsL K43R (70.0%, streptomycin), embB M306V (37.4%, ethambutol), pncA_promoter T (-11)C (7.9%, pyrazinamide), gyrA A90V (32.3%, fluoroquinolones), rrs A1401G (67.7%, second-line injection drugs), fabG1_promoter C (-15) T (87.0%, Ethionamide), folC I43T (30.4%, P-aminosalicylic acid). Among them, the frequencies of katG S315T, embB M306V, rpsL K43R, gyrA A90V in lineage 2 were significantly higher than those in lineage 4, and folC I43T was only found in lineage 2. The proportion of katG S315T was significantly higher in the ancient Beijing genotype compared to the modern genotype, in contrast, the proportion of rpsL K43R was significantly higher in modern Beijing genotype, the differences were significant (all P<0.05). Conclusions: The results showed the main mutation types of resistance-related genes of MDR strains to many commonly used anti-tuberculosis drugs in China based on whole-genome sequencing, providing a basis for the development of sensitive and specific rapid molecular detection methods. At the same time, it was also found that the major mutation types of MDR-related genes were related to the genotype of the strains.
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Affiliation(s)
- M Gao
- School of Public Health, University of South China, Hengyang 421001, China
| | - T T Yang
- School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - G L Li
- State Key Laboratory for Infectious Diseases Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - R Chen
- School of Public Health, University of South China, Hengyang 421001, China
| | - H C Liu
- State Key Laboratory for Infectious Diseases Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Q Gao
- School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - K L Wan
- State Key Laboratory for Infectious Diseases Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - S D Feng
- School of Public Health, University of South China, Hengyang 421001, China
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12
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Song X, Wang JP, Song Y, Qi T, Liang Li G. Bioinspired Healable Mechanochromic Function from Fluorescent Polyurethane Composite Film. ChemistryOpen 2020; 9:272-276. [PMID: 32140381 PMCID: PMC7050239 DOI: 10.1002/open.201900295] [Citation(s) in RCA: 5] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 11/20/2019] [Indexed: 12/21/2022] Open
Abstract
Camouflage and wound healing are two vital functions for cephalopods to survive from dangerous ocean risks. Inspired by these dual functions, herein, we report a new type of healable mechanochromic (HMC) material. The bifunctional HMC material consists of two tightly bonded layers. One layer is composed of polyvinyl alcohol (PVA) and titanium dioxide (TiO2) for shielding. Another layer contains supramolecular hydrogen bonding polymers and fluorochromes for healing. The as‐synthesized HMC material exhibits a tunable and reversible mechanochromic function due to the strain‐induced surface structure of composite film. The mechanochromic function can be further restored after damage because of the incorporated healable polyurethane. The healing efficiency of the damaged HMC materials can even reach 98 % at 60 °C for 6 h. The bioinspired HMC material is expected to have potential applications in the information encryption and flexible displays.
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Affiliation(s)
- Xiaoke Song
- National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology Institute of Process Engineering, Chinese Academy of Sciences Beijing 100049 P. R. China.,University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Jun-Peng Wang
- National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology Institute of Process Engineering, Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Yan Song
- National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology Institute of Process Engineering, Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Tao Qi
- National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology Institute of Process Engineering, Chinese Academy of Sciences Beijing 100049 P. R. China.,University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Guo Liang Li
- National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology Institute of Process Engineering, Chinese Academy of Sciences Beijing 100049 P. R. China.,University of Chinese Academy of Sciences Beijing 100049 P. R. China
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13
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Song X, Wang J, Song Y, Qi T, Liang Li G. Cover Feature: Bioinspired Healable Mechanochromic Function from Fluorescent Polyurethane Composite Film (ChemistryOpen 3/2020). ChemistryOpen 2020. [DOI: 10.1002/open.202000039] [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: 11/06/2022] Open
Affiliation(s)
- Xiaoke Song
- National Engineering Laboratory for Hydrometallurgical Cleaner Production TechnologyInstitute of Process Engineering, Chinese Academy of Sciences Beijing 100049 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Jun‐Peng Wang
- National Engineering Laboratory for Hydrometallurgical Cleaner Production TechnologyInstitute of Process Engineering, Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Yan Song
- National Engineering Laboratory for Hydrometallurgical Cleaner Production TechnologyInstitute of Process Engineering, Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Tao Qi
- National Engineering Laboratory for Hydrometallurgical Cleaner Production TechnologyInstitute of Process Engineering, Chinese Academy of Sciences Beijing 100049 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Guo Liang Li
- National Engineering Laboratory for Hydrometallurgical Cleaner Production TechnologyInstitute of Process Engineering, Chinese Academy of Sciences Beijing 100049 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
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14
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Liu HJ, Li GL, Lei PC. [Effects of miR-144 on proliferation, apoptosis and cisplatin resistance by targeting MYCN in pediatric neuroblastoma]. Zhonghua Zhong Liu Za Zhi 2019; 41:516-521. [PMID: 31357838 DOI: 10.3760/cma.j.issn.0253-3766.2019.07.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [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 and mechanisms of miR-144 on proliferation, apoptosis and cisplatin (DDP) resistance of neuroblastoma cells. Methods: Real-time fluorescence quantitative PCR (RT-qPCR) was used to detect the mRNA expressions of miR-144 and MYCN in neuroblastoma cell lines, including SH-SY5Y and SK-N-SH, and human umbilical vein endothelial cells HUVEC. The miR-negative control, miR-144 mimics, si-negative control, si-MYCN, miR-144 mimics and pcDNA, miR-144 mimics and pcDNA-MYCN co-transfected SH-SY5Y cells were described as miR-NC, miR-144, si-NC, si-MYCN, miR-144+ pcDNA and miR-144+ pcDNA-MYCN group, respectively. The half maximal inhibitory concentration (IC(50)) and cell proliferation were detected by 3-(4, 5-dimethyl-2-thiazolyl)-2, 5-diphenyl-2H tetrazolium bromide (MTT) assay. The protein expressions of MYCN, p21, cyclin D1, Bax, Bcl-2 were analyzed by western blot. Cell apoptosis was detected by flow cytometry. The cell fluorescence activity was detected by double luciferase reporter gene assay. Results: Compared with HUVEC cells, the expressions of miR-144 in neuroblastoma cells SH-SY5Y and SK-N-SH significantly decreased, while the mRNA and protein expression of MYCN significantly increased. The IC(50) of DDP was 9.16 μg/ml in SH-SY5Y cells. The absorbance value in 490nm (A(490) value) of miR-144 group was 0.30±0.03, significantly lower than 0.46±0.03 of miR-NC group. The cell apoptotic rate of miR-144 group was 26.94%±2.01%, significantly higher than 9.68%±0.52% of miR-NC group. The IC(50) value of DDP in miR-144 group was 2.95±0.26, significantly lower than 9.23±0.61 of miR-NC group. The expressions of p21, cyclin D1, Bax, Bcl-2 in miR-NC and miR-144 group were 2.67±0.19, 0.41±0.04, 2.12±0.21, 0.18±0.01 and 1.01±0.07, 1.00±0.06, 1.00±0.05, 1.00±0.06, respectively, with statistical significance (all P<0.05). Knockdown of MYCN showed the similar effects with those of miR-144 overexpression in SH-SYSY cells. MiR-144 significantly inhibited the fluorescence activity of ectopic MYCN expressing cells and negatively regulated the expression of MYCN. Overexpression of MYCN can reverse the effects of miR-144 on proliferation inhibition, apoptosis promotion and sensitization of SH-SY5Y cells to DDP. Conclusion: MiR-144 inhibits proliferation, promotes apoptosis and enhances the sensitivity of neuroblastoma cells to DDP through targeting MYCN, which provides a potential treatment for neuroblastoma.
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Affiliation(s)
- H J Liu
- Department of Pediatrics, Henan People's Hospital, Zhengzhou 450000, China
| | - G L Li
- Department of Pediatrics, Henan People's Hospital, Zhengzhou 450000, China
| | - P C Lei
- Department of Hematology, Henan People's Hospital, Zhengzhou 450000, China
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Han D, Sun CF, Li GL. P2534Prevalence and risk factors of acquired LQTS among pregnancy: a single-center study. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.0863] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Prolonged QT intervals have been observed in pregnant women, especially those with twin pregnancy, which predisposes them to a high risk of ventricular arrhythmias.
Purpose
To evaluate the prevalence of acquired long QT syndrome (aLQTS) in hospitalized parturient women with single and twin pregnancy and search for potential risk factors.
Methods
Information about age-matched parturient women with single and twin pregnancy were retrospectively collected in our hospital from January 2016 to June 2018. The prevalence of aLQTS was evaluated. The common risk factors for corrected QT (QTc) prolongation were compiled, and multivariable logistic regression analysis was used to evaluate how each factor was related to aLQTS in such population.
Results
Totally 293 parturient women (147 twin pregnancy, 50.17%) were included. The prevalence of aLQTS was 72.70% in all cases, 53.15% in the single pregnancy, 93.20% in the twin pregnancy. The proportion of severely prolonged QTc was 36.18% in all cases, 8.22% in the single pregnancy and 63.95% in the twin pregnancy. The QTc interval was much longer in the twin pregnancy than in the single pregnancy with significant difference. Differences in systolic blood pressure, diastolic blood pressure, total cholesterol, serum uric acid, fetal weight, QRS, RV5+SV1, Tp-Te, Tp-Te/QT have been revealed to be statistically significant between the QTc-prolongation group and the QTc-normal group. The incidence of gestational hypertension and twin pregnancy in the QTc-prolongation group were more prevalent than in the QTc-normal group with significant difference. In the multivariable logistic regression analysis, gestational hypertension, twin pregnancy, increase of diastolic blood pressure, high total cholesterol, high serum uric acid, and heavy fetal weight were identified to be associated with QTc prolongation in parturient women.
Table 1. Risk factors significantly correlated with QTc prolongation in parturient women Index P value OR (95% CI) DBP (mmHg) 0.033* 1.052 (1.004 to 1.101) TC (mmol/L) 0.001** 1.442 (1.165 to 1.785) UA (μmol/L) 0.007** 1.004 (1.001 to 1.008) Fetal weight (g) <0.001** 1.001 (1.001 to 1.001) Hypertention (%) 0.029* 2.561 (1.099 to 5.967) Twin (%) <0.001** 12.618 (6.145 to 25.909)
Conclusion
To our knowledge, this is the first clinical study to evaluate the prevalence of aLQTS between single and twin pregnancy. The prevalence of aLQTS is much higher in the parturient women, particularly in twin pregnancy.
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Affiliation(s)
- D Han
- First Hospital of Medical College of Xi'an Jiaotong University, Xi'an, China
| | - C F Sun
- First Hospital of Medical College of Xi'an Jiaotong University, Xi'an, China
| | - G L Li
- First Hospital of Medical College of Xi'an Jiaotong University, Xi'an, China
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16
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Liu HJ, Li GL, Lei PC. [PDCD4 enhances the inhibitory effect of As(2)O(3) on the growth and NF-κB signaling pathway in neuroblastoma cells]. Zhonghua Zhong Liu Za Zhi 2019; 41:675-680. [PMID: 31550857 DOI: 10.3760/cma.j.issn.0253-3766.2019.09.006] [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 inhibitory effect of programmed cell death factor 4 (PDCD4) on arsenic trioxide (As(2)O(3))-induced cell growth and nuclear factor kappa B (NF-κB) signaling pathway in neuroblastoma. Methods: The PDCD4 overexpression vector was transfected into neuroblastoma cells and detected by fluorescence quantitative PCR and Western blot. As(2)O(3) was used to treat PDCD4 overexpressing neuroblastoma cells. MTT assay was used to measure the proliferation. Colony formation assay was used to determine the cell clone forming ability. Apoptosis was measured by flow cytometry. Western blot was used to detect the expression of NF-κB p65 and cleaved caspase-3 protein in cells. Results: The transfection of PDCD4 overexpression vector significantly increased the expression level of PDCD4 in neuroblastoma cells. The cell survival rates of the control group, PDCD4 group, As(2)O(3) group and As(2)O(3)+ PDCD4 group were 100%, (72.14±5.20)%, (62.58±3.14)% and (40.87±2.47)%, respectively. The colony formation rates in these four groups were (91.25±8.36)%, (65.32±7.14)%, (57.23±5.28)% and (37.14±3.64)%, respectively. In addition, the cell apoptotic rates of these four groups were (3.57±0.24)%, (28.64±3.20)%, (36.41±4.58)% and (49.65±5.27)%, respectively. Therefore, overexpression of PDCD4 in the absence or presence of As(2)O(3) inhibited cell proliferation and clone formation ability, while promoted apoptosis. Furthermore, the expression levels of cleaved caspase-3 in the control group, PDCD4 group, As(2)O(3) group and As(2)O(3)+ PDCD4 group were 0.21±0.03, 0.30±0.02, 0.43±0.05 and 0.57±0.06, respectively. And the expression levels of NF-κB p65 protein were 0.68±0.04, 0.52±0.03, 0.43±0.04, and 0.32±0.02, respectively. Compared with the control group, the expression levels of NF-κB p65 protein in PDCD4 group, As(2)O(3) group and As(2)O(3)+ PDCD4 group were significantly decreased (P<0.05), whereas the expression level of cleaved Caspase-3 protein was significantly increased (P<0.05). The changes in As(2)O(3)+ PDCD4 group were more significant than those in PDCD4 group and As(2)O(3) groups (both P<0.05). Conclusion: PDCD4 enhances the inhibitory effect of As(2)O(3) on the growth and NF-κB signaling pathway in neuroblastoma cells.
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Affiliation(s)
- H J Liu
- Department of Pediatrics, Henan Provincial People's Hospital, Zhengzhou 450000, China
| | - G L Li
- Department of Pediatrics, Henan Provincial People's Hospital, Zhengzhou 450000, China
| | - P C Lei
- Department of Hematology, Henan Provincial People's Hospital, Zhengzhou 450000, China
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Song Y, Chen KF, Wang JJ, Liu Y, Qi T, Li GL. Synthesis of Polyurethane/Poly(urea-formaldehyde) Double-shelled Microcapsules for Self-healing Anticorrosion Coatings. Chin J Polym Sci 2019. [DOI: 10.1007/s10118-019-2317-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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18
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Zhang JW, Xu Q, Li GL. [Epigenetics in the genesis and development of cancers]. Yi Chuan 2019; 41:567-581. [PMID: 31307967 DOI: 10.16288/j.yczz.19-077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
Cancer is a complex disease caused by the malignant cellular proliferation and metastasis. Elucidating its pathogenic mechanism is one of the major challenges that we face currently. Epigenetic mechanisms are essential for maintaining specific patterns of gene expression and normal development and growth of living individuals. Disorders of epigenetic markers, such as histone modification, DNA/RNA methylation, and changes in the three-dimensional conformation of chromatin, can interfere with gene expression to some extent, and result in cancers. This review provides a brief overview of epigenetics, focusing on their association with the genesis of cancers, and we look forward to the application of epigenetics in cancer clinical diagnosis and treatment.
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Affiliation(s)
- Jing Wen Zhang
- College of Informatics, National Key Laboratory of Crop Genetic Improvement, Agricultural Bioinformatics Key Laboratory of Hubei Province, Hubei Engineering Technology Research Center of Agricultural Big Data, Huazhong Agricultural University, Wuhan 430070, China
| | - Qian Xu
- College of Informatics, National Key Laboratory of Crop Genetic Improvement, Agricultural Bioinformatics Key Laboratory of Hubei Province, Hubei Engineering Technology Research Center of Agricultural Big Data, Huazhong Agricultural University, Wuhan 430070, China
| | - Guo Liang Li
- College of Informatics, National Key Laboratory of Crop Genetic Improvement, Agricultural Bioinformatics Key Laboratory of Hubei Province, Hubei Engineering Technology Research Center of Agricultural Big Data, Huazhong Agricultural University, Wuhan 430070, China
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Cui X, Song Y, Wang JP, Wang JK, Zhou Q, Qi T, Li GL. Self-healing polymers with tunable mechanical strengths via combined hydrogen bonding and zinc-imidazole interactions. POLYMER 2019. [DOI: 10.1016/j.polymer.2019.04.060] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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20
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Niu S, Wang CX, Jia FJ, Jahejo AR, Li X, Ning GB, Zhang D, Ma HL, Hao WF, Gao WW, Zhao YJ, Gao SM, Li JH, Li GL, Yan F, Gao RK, Huo NR, Tian WX, Chen HC. The expression of prostaglandins-related genes in erythrocytes of broiler chicken responds to thiram-induced tibial dyschondroplasia and recombinant glutathione-S-transferase A3 protein. Res Vet Sci 2019; 124:112-117. [PMID: 30878632 DOI: 10.1016/j.rvsc.2019.03.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [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: 11/13/2018] [Revised: 02/26/2019] [Accepted: 03/07/2019] [Indexed: 02/06/2023]
Abstract
Tibial dyschondroplasia (TD) is a type of bone deformity found in fast-growing chickens, which induce inflammatory responses. Prostaglandins (PGs) implicate in bone formation and bone resorption, associated with inflammation in an autocrine/paracrine manner. This study used qRT-PCR and immunohistochemistry analysis to identify the expression patterns of PG-related genes in the erythrocytes of broiler chickens and explore the effects of thiram-induced TD and the recombinant glutathione-S-transferase A3 (rGSTA3) protein on the expression of PG-related genes: GSTA3, cyclooxygenase 2 (COX-2), prostaglandin D2 synthase (PTGDS), prostaglandin E synthase (PTGES), prostaglandin E2 receptor (PTGER) 3, PTGER4 and prostaglandin reductase 1 (PTGR1). Interestingly, the results showed that these seven PG-related genes expression was identified in the erythrocytes of broiler chicken, and thiram-induced TD suppressed the expression of these PG-related genes in the initial stage of TD and promoted their expression in TD recovery. These findings demonstrated that the immunoregulatory function of erythrocytes can be inhibited in the early stage of TD and promoted in the recovery stage by modulating the expression of PG-related genes. Further, the rGSTA3 protein can modulate the expression of PG-related genes in erythrocytes and participate in the recovery of TD.
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Affiliation(s)
- S Niu
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China
| | - C X Wang
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China
| | - F J Jia
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China
| | - A R Jahejo
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China
| | - X Li
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China
| | - G B Ning
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China
| | - D Zhang
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China
| | - H L Ma
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China
| | - W F Hao
- Taiyuan Center for Disease Control and Prevention, Taiyuan 030024, China
| | - W W Gao
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China
| | - Y J Zhao
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China
| | - S M Gao
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China
| | - J H Li
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China
| | - G L Li
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China
| | - F Yan
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China
| | - R K Gao
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China
| | - N R Huo
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China
| | - W X Tian
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China.
| | - H C Chen
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China; State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China.
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Guo Y, Wang J, Zhang D, Qi T, Li GL. pH-responsive self-healing anticorrosion coatings based on benzotriazole-containing zeolitic imidazole framework. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2018.10.044] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Zhao WL, Wu YH, Li HF, Li SY, Fan SY, Wu HL, Li YJ, Lü YL, Han J, Zhang WC, Zhao Y, Li GL, Qiao XD, Ren HT, Zhu YC, Peng B, Cui LY, Guan HZ. [Clinical experience and next-generation sequencing analysis of encephalitis caused by pseudorabies virus]. Zhonghua Yi Xue Za Zhi 2018; 98:1152-1157. [PMID: 29690727 DOI: 10.3760/cma.j.issn.0376-2491.2018.15.006] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [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 detect potential pathogens including pseudorabies virus in patients with encephalitis of unknown etiology in China and describe novel encephalitic entities. Methods: Patients with clinically suspected infectious encephalitis were enrolled in a multicenter study to identify the pathogens in PUMCH Encephalitis Program.Next-generation sequencing(NGS) of cerebrospinal fluid (CSF) was used in patients with encephalitis of unknown etiology enrolled from 2016 to 2017.The patients diagnosed as PRV encephalitis were studied to describe this novel entity. Results: The four patients(3 male, 1 male, 38-54 years old) had occupational exposure to raw park when working in the production or marketing of pork and at least one got injured during pork-cutting.Two of them were confirmed with NGS of CSF, and anti-PRV antibodies were positive in 3 patients whose serum was available for serological analysis.They all presented with an acute onset of fever, convulsion, loss of consciousness and respiratory failure within 1 to 4 days and rapidly deteriorated even on extensive treatment.All the patients needed ICU admission and 3 needed mechanical ventilation.Two patients also had bilateral retinitis.Neuroimaging revealed symmetric gray matter lesions including limbic system, basal ganglia and midbrain without obvious hemorrhage.Lumbar puncture revealed elevated intracranial pressure and lymphocytic pleocytosis [(6-64)×10(6)/L] of CSF.The patients failed to response to the treatment of acyclovir combined with intravenous immunoglobulin and steroids.Modified Rankin Score was 3, 5, 5 and 6 (died) for the 4 patients respectively on last follow-up. Conclusions: PRV could be a cause of severe encephalitis.The patients with suspected pseudorabies encephalitis (PRE) need to be tested for PRV DNA timely.Severe encephalitis with bilateral involvement of limbic system, basal ganglion, thalamus and midbrain in patient with occupational exposure indicate this emerging infectious encephalitis.
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Affiliation(s)
- W L Zhao
- Department of Neurology, the Affiliated Hospital of Chifeng University, Chifeng, Inner Mongolia Autonomous Region 024005, China
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Zhang Y, Wang JP, Wang XL, Tian H, Gao TT, Tang LM, Tian F, Wang JW, Zheng HJ, Zhang L, Gao XJ, Li GL, Wang XY. Computed tomography-quantified body composition predicts short-term outcomes after gastrectomy in gastric cancer. ACTA ACUST UNITED AC 2018; 25:e411-e422. [PMID: 30464692 DOI: 10.3747/co.25.4014] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Background Malnutrition is a common and critical problem that influences outcome in cancer patients. Body composition reflects a patient's metabolic profile and physiologic reserves, which might be the true determinant of prognosis. In the present study, which aimed to identify valuable new prognostic indicators, we investigated the association between computed tomography-quantified body composition and short-term outcomes after gastrectomy for gastric cancer. Methods Skeletal muscle index, mean muscle attenuation, and ratio of visceral-to-subcutaneous adipose tissue area (vsr) were calculated from preoperative computed tomography images. Low skeletal muscle index, low mean muscle attenuation, and high vsr were respectively termed "sarcopenia," "myosteatosis," and "visceral obesity." The association of body composition with postoperative complications and serum markers of nutrition and inflammation after radical gastrectomy were analyzed. Results The overall complication rate was significantly higher in the sarcopenia (62.5% vs. 27.3%, p = 0.001) and myosteatosis groups (38.2% vs. 4%, p = 0.002). Patients with visceral obesity had a higher incidence of inflammatory complications (20.3% vs. 6.5%, p = 0.01). Multivariate logistic regression analysis demonstrated that sarcopenia (p = 0.013), myosteatosis (p = 0.017), and low serum retinol-binding protein (p = 0.019) were independent risk factors for overall complications. Compared with control subjects, patients with sarcopenia had lower postoperative levels of serum retinol-binding protein (p = 0.007), and patients with visceral obesity had higher levels of C-reactive protein (p = 0.026). Conclusions Sarcopenia, myosteatosis, and visceral obesity were significantly associated with increased rates of postoperative complications and affected the postoperative nutrition and inflammation status of patients with gastric cancer.
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Affiliation(s)
- Y Zhang
- Department of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, P.R.C.,Department of Cardiothoracic Surgery, Jiangsu Province Hospital of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, P.R.C
| | - J P Wang
- Jinling Clinical Medical College of Nanjing Medical University, Nanjing, P.R.C.,Department of Medical Imaging, Jinling Hospital, Medical School of Nanjing University, Nanjing, P.R.C
| | - X L Wang
- Department of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, P.R.C
| | - H Tian
- Department of General Surgery, Jinling Hospital Affiliated to Southern Medical University, Nanjing, P.R.C
| | - T T Gao
- Department of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, P.R.C
| | - L M Tang
- Changzhou No. 2 People's Hospital, The Affiliated Hospital of Nanjing Medical University, Changzhou School of Clinical Medicine of Nanjing Medical University, Changzhou, P.R.C
| | - F Tian
- Department of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, P.R.C
| | - J W Wang
- Department of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, P.R.C
| | - H J Zheng
- Intensive Care Unit, Sir Run Run Shaw Hospital, Medical School of Zhejiang University, Hangzhou, P.R.C
| | - L Zhang
- Department of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, P.R.C
| | - X J Gao
- Department of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, P.R.C
| | - G L Li
- Department of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, P.R.C
| | - X Y Wang
- Department of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, P.R.C
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Song Y, Liu Y, Qi T, Li GL. Towards Dynamic but Supertough Healable Polymers through Biomimetic Hierarchical Hydrogen-Bonding Interactions. Angew Chem Int Ed Engl 2018; 57:13838-13842. [PMID: 30144244 DOI: 10.1002/anie.201807622] [Citation(s) in RCA: 206] [Impact Index Per Article: 34.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Revised: 08/04/2018] [Indexed: 01/06/2023]
Abstract
A biomimetic (titin protein molecular structure) strategy is reported for preparing transparent and healable elastomers featuring supertoughness (345 MJ m-3 ) and high tensile strength (44 MPa) after self-healing enabled by hierarchical (single, double, and quadruple) hydrogen-bonding moieties in the polymer backbone. The rigid domain containing hierarchical H-bonds formed with urethane, urea, and 2-ureido-4[1H]-pyrimidinone groups leads to a durable network structure that has enhanced mechanical properties and is also dynamic for rapid self-healing. Healable polymers with hierarchical hydrogen-bonding interactions show excellent recoverability and high energy dissipation owing to the durable interaction between polymer chains. This biomimetic strategy of using hierarchical hydrogen bonds as building blocks is an alternative approach for obtaining dynamic, strong, yet smart self-healing polymers for heavy-duty protection materials and wearable electronics.
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Affiliation(s)
- Yan Song
- National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, P. R. China.,University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Yuan Liu
- National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Tao Qi
- National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, P. R. China.,University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Guo Liang Li
- National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, P. R. China.,University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
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Song Y, Liu Y, Qi T, Li GL. Towards Dynamic but Supertough Healable Polymers through Biomimetic Hierarchical Hydrogen‐Bonding Interactions. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201807622] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Yan Song
- National Engineering Laboratory for Hydrometallurgical Cleaner Production TechnologyInstitute of Process EngineeringChinese Academy of Sciences Beijing 100190 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Yuan Liu
- National Engineering Laboratory for Hydrometallurgical Cleaner Production TechnologyInstitute of Process EngineeringChinese Academy of Sciences Beijing 100190 P. R. China
| | - Tao Qi
- National Engineering Laboratory for Hydrometallurgical Cleaner Production TechnologyInstitute of Process EngineeringChinese Academy of Sciences Beijing 100190 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Guo Liang Li
- National Engineering Laboratory for Hydrometallurgical Cleaner Production TechnologyInstitute of Process EngineeringChinese Academy of Sciences Beijing 100190 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
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Ye H, Huang T, Ying ZF, Li GL, Che YC, Zhao ZM, Wang JF, Yang XL, Shi L, Jiang RJ, Liu XC, Mo ZJ, Li CG, Yang JS. [Comparing the immunogenicity and safety of sequential inoculation of sIPV followed by bOPV (Ⅰ+Ⅲ) in different dosage forms]. Zhonghua Yu Fang Yi Xue Za Zhi 2018; 52:43-49. [PMID: 29334707 DOI: 10.3760/cma.j.issn.0253-9624.2018.01.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [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 compare the safety and immunogenicity of two different sequential schedules of inactivated poliomyelitis vaccine made from Sabin strain (sIPV) followed by typeⅠ+Ⅲ bivalent oral poliovirus vaccine (bOPV) in Drug Candy (DC) form or liquid dosage form). Methods: This randomized, blinded, single center, parallel-group controlled trial was done from September 2015 to June 2016 in Liuzhou, Guangxi province. Healthy infants aged ≥2 months were eligible for enrollment and divided into 1sIPV+2bOPV or 2sIPV+1bOPV sequential schedules. According to the bOPV dosage form each sequential schedules, the subjects again were divided into drug candy(DC) form or liquid dosage form group, being 1sIPV+bOPV (DC)/1sIPV+2bOPV(liquid)/2sIPV+1bOPV(DC)/2sIPV+1bOPV(liquid). According to 0, 28, 56 d immunization schedule, Each group were given 3 doses. We recorded adverse events during the clinical trial (399 participants who receive at least one dose). 28 days post-Dose 3, we receive a total of 350 blood samples (excluding the quitters or subjects against trial plan), using cell culture trace against polio virus neutralization test Ⅰ, Ⅱ, Ⅲ neutralizing antibody (GMT), calculating the antibody positive rate.PolioⅠ,Ⅱand Ⅲ antibody titers were assessed by virus-neutralizing antibody assay and the seroconversion (4-fold increase in titer) from pre-Dose 1 to 28 days post-Dose 3 was calculated (total 350 samples) . Results: During the vaccination, the incidence of AEs in 1sIPV+2bOPV(DC), 1sIPV+2bOPV (liquid), 2sIPV+1bOPV(DC), 2sIPV+1bOPV (liquid) group were 79%, 76%, 80% and 74% (χ(2)=1.23, P=0.747) , respectively. The severe AEs in groups were 6%, 5%, 6% and 4% (χ(2)=0.57, P=0.903) , respectively, and none was considered to be vaccination related. 28 days after 3(rd) vaccination, the seroconversion rates in 1sIPV+2bOPV (DC), 1sIPV+2bOPV (liquid), 2sIPV+1bOPV (DC), 2sIPV+1bOPV (liquid) group, were 99%, 100%, 99% and 99% (χ(2)=0.94, P=0.815) , respectively, for type Ⅰ poliovirus; and 47%, 57%, 80%, 79% (χ(2)=31.56, P<0.001) , respectively, for type Ⅱ; and were 100%, 99%, 100%, 99% (χ(2)=2.02, P=0.568) , respectively, for type Ⅲ. In each group, the GMT of antibody against poliovirus typeⅠ were 4 539.68, 6 243.43, 6 819.53 and 7 916.29 (F=25.87, P<0.001) , respectively; Type Ⅱ were 12.98, 10.54, 63.75 and 84.21 (F=8.68, P=0.034) , respectively; Type Ⅲ were 1 172.55, 1 416.03, 2 648.89 and 3 250.75 (F=14.50, P=0.002) , respectively. Conclusion: On the same sequential schedules, there was no significant difference between the dosage forms, all of them showed good safety and immunogenicity. In the same dosage forms with different sequential schedules, the seroconversion rate was higher in 2 dose sIPV group than the 1 dose sIPV group, especially at the neutralizing antibody GMT level against polio type Ⅱ and Ⅲ after vaccination.
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Affiliation(s)
- H Ye
- Institute of Medical Biology, Chinese Academy of Medical Sciences, Pekin Union Medical College, Kunming 650118, China
| | - T Huang
- Guangxi Center for Disease Prevention and Control, Division of Vaccine Clinical Trial, Nanning 530028, China
| | - Z F Ying
- National Institute for Food and Drug Control, Division of Respiratory Virus Vaccines, Beijing 100050, China
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Li GL, Wang SM. [The development and status of bioartificial liver]. Zhonghua Wai Ke Za Zhi 2017; 55:957-959. [PMID: 29224272 DOI: 10.3760/cma.j.issn.0529-5815.2017.12.018] [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
Liver failure is a serious stage during liver disease development of which mobidity is high. There is no effective treatment at present.Artificial liver support system is one of the important methods to treat liver failure which includes non-biological artificial liver, biological artificial liver and hybrid artificial liver. Among the artificial liver devices. The bioartificial liver is the most similar artifical liver device to human liver in terms of detoxification, synthesis and metabolism currently.The complexity of human liver function makes the biological artificial liver facing great challenges in selection of liver seed cells, construction of bioreactor and the best combination with auxiliary device, which leads to the slow development of bioartificial liver. In order to provide theoretical support for the study of bioartificial liver, the current status and its development are reviewed in the following aspects, the source of seed cells, the construction of bioreactor, the combination of auxiliary devices and the clinical application of bioartificial liver in this article.
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Affiliation(s)
- G L Li
- Shanxi Medical University, Taiyuan 030000, China
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Wei F, Wei Y, Li LF, Li GL, Wang GJ. [The value of B7-H4 and carcinoembryonic antigen in diagnosing the benign and malignant pleural effusion]. Zhonghua Zhong Liu Za Zhi 2017; 39:524-527. [PMID: 28728299 DOI: 10.3760/cma.j.issn.0253-3766.2017.07.009] [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 evaluate the value of combined detection of negative costimulatory molecule B7-H4 and carcinoembryonic antigen (CEA) in diagnosing malignant and benign pleural effusion. Methods: Ninety-seven pleural effusion specimen were collected, 55 of which were diagnosed as malignant pleural effusion and 42 were benign pleural effusion. Enzyme-linked immunosorbent assay(ELISA) was used to examine the concentration of B7-H4 and CEA in pleural effusion. Electro-chemiluminescence immunoassay was used to detect the CEA level in pleural effusion. Receiver operating characteristic (ROC) curve was established to analyze and evaluate the single or combined detection of B7-H4 and CEA in diagnosing malignant and benign pleural effusion. Results: The concentrations of B7-H4 and CEA in malignant pleural effusion (MPE) group were (60.08±35.04) ng/ml and (41.49±37.16) ng/ml, respectively, obviously higher than (27.26±9.55) ng/ml and (2.41±0.94) ng/ml of benign pleural effusion (BPE) group (both P<0.01). Area under curve (AUC) of B7-H4 was 0.884 in MPE groupand the diagnostic sensitivity and specificity were 81.8% and 90.5%, respectively, at the optimized cut off value of 37.25 ng/ml. Likewise, area under curve (AUC) of CEA was 0.954 and the sensitivity and specificity were 87.3% and 95.2%, respectively, at the cut off value of 4.18 ng/ml. When B7-H4 >37.25 ng/ml or CEA>4.18 ng/ml, the sensitivity of diagnosis as MPE was down-regulated to 90.9% and the specificity was elevated to 88.1%. When B7-H4 >37.25 ng/ml and CEA>4.18 ng/ml, the sensitivity of diagnosis as MPE was down-regulated to 78.2% and the specificity was elevated to 97.6%. The sensitivity and specificity of combined detection of B7-H4 and CEA to diagnose MPE were elevated to 90.9% and 97.6%, respectively. The level of B7-H4 in MPE and BPE were both positively correlated with CEA (r=0.670, P=0.001 in MPE and r=0.002, P=0.001 in BEP). Conclusions: B7-H4 is a potential tumor marker in diagnosing the benign and malignant pleural effusion. Although the diagnostic value of B7-H4 may not precede to CEA, the combined detection of B7-H4 and CEA can improve the diagnostic sensitivity and specificity of MPE.
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Affiliation(s)
- F Wei
- Department of Medical Oncology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Y Wei
- Rehabilitation Department, the Seventh People's Hospital of Zhengzhou, Zhengzhou 450000, China
| | - L F Li
- Biotherapy Center, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - G L Li
- Department of Medical Oncology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - G J Wang
- Department of Medical Oncology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
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Li C, Li GL, Luo Q, Li SJ, Wang RB, Lou YL, Lyu JX, Wan KL. [A preliminary study on the molecular characteristics of D-cycloserine resistance of Mycobacterium tuberculosis]. Zhonghua Liu Xing Bing Xue Za Zhi 2017; 38:240-243. [PMID: 28231674 DOI: 10.3760/cma.j.issn.0254-6450.2017.02.021] [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 relationship between D-cycloserine resistance and the gene mutations of alrA, ddlA and cycA of Mycobacterium (M.) tuberculosis, as well as the association between D-cycloserine resistance and spoligotyping genotyping. Methods: A total of 145 M. tuberculosis strains were selected from the strain bank. D-cycloserine resistant phenotypes of the strains were determined by the proportion method and the minimal inhibitory concentration was determined by resazurin microtiter assay. PCR amplification and DNA direct sequencing methods were used for the analysis of gene mutations. Relationship between the resistance phenotype and genotype was analyzed by chi-square test. Results: Of the 145 clinically collected strains, 24 (16.6%) of them were D-cycloserine resistant and 121 (83.4%) were sensitive. There were only synonymous mutations noticed on alrA, ddlA and cycA in sensitive strains. Of the 24 D-cycloserine resistant strains, 3 (12.5%) isolates' cycA and 1 (4.2%) isolates' alrA happened to be non-synonymous mutations, in which the codes were 188, 318 and 508 of cycA, and 261 of alrA, respectively. Results on drug sensitivity tests confirmed the minimal inhibitory concentration of the mutant strains were all increased to some degrees. The D-cycloserine resistant rates of 88 Beijing genotype and 57 non-Beijing genotype strains were 20.5% and 10.5% , respectively, but with no statistically significant difference (χ(2) =2.47, P>0.05). Conclusions: The non-synonymous mutations of alrA and cycA might contribute to one of the mechanisms of M. tuberculosis D-cycloserine resistance. M. tuberculosis Beijing genotype or non-Beijing genotype was not considered to be associated with the D-cycloserine resistance.
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Affiliation(s)
- C Li
- School of Laboratory Medicine and Life Science, Wenzhou Medical University, Wenzhou 325035, China
| | - G L Li
- Tuberculosis Branch, State Key Laboratory for Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Q Luo
- School of Laboratory Medicine and Life Science, Wenzhou Medical University, Wenzhou 325035, China
| | - S J Li
- School of Laboratory Medicine and Life Science, Wenzhou Medical University, Wenzhou 325035, China
| | - R B Wang
- Tuberculosis Branch, State Key Laboratory for Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Y L Lou
- School of Laboratory Medicine and Life Science, Wenzhou Medical University, Wenzhou 325035, China
| | - J X Lyu
- School of Laboratory Medicine and Life Science, Wenzhou Medical University, Wenzhou 325035, China
| | - K L Wan
- Tuberculosis Branch, State Key Laboratory for Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China; School of Laboratory Medicine and Life Science, Wenzhou Medical University, Wenzhou 325035, China
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Li GL, Hu J, Wang H, Pilz-Allen C, Wang J, Qi T, Möhwald H, Shchukin DG. Polymer-decorated anisotropic silica nanotubes with combined shape and surface properties for guest delivery. POLYMER 2017. [DOI: 10.1016/j.polymer.2016.12.048] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [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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Abstract
Orphan nuclear receptor TLX has been shown to play an essential role in regulating the self-renewal and proliferation of neural stem cells (NSCs). However, TLX overexpression in NSCs induces long-term NSC expansion and further leads to glioma initiation in mouse when combined with p53 mutations. Whether overexpression of TLX plays a role in glioma stem cell (GSC) proliferation and migration still remains largely unknown. In this study, we infected C6 cells, a special glioma cell line which is mainly composed of cancer stem cells(CSCs), with lentiviruses expressing GFP(LV-GFP) or GFP-T2A-TLX(LV-TLX) and then monitored cell proliferation and migration using the real-time analyzer system (RTCA, xCELLigence, Roche). We found that the cell index (CI) observed for the TLX overexpressing C6 cells showed a lower value than that of the LV-GFP transduced cells. And the MTT results correlated highly with the RTCA proliferation assessments. Furthermore, the expression of p21 was decreased while other downstream genes PTEN and p53 were not significantly changed in TLX overexpressing C6 cells . These findings strongly indicate that TLX overexpression has the ability to decrease the proliferating and migratory properties of C6 cells by targeting p21. Further, our results suggest that TLX overexpression may also have a similar inhibitory effect on GSC proliferation and migration.
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Cui Y, Du J, Wang JM, Xu L, Li GL. [Clinicopathologic study of chordoid glioma of third ventricle: a report of 5 cases]. Zhonghua Bing Li Xue Za Zhi 2016; 45:575-576. [PMID: 27510786 DOI: 10.3760/cma.j.issn.0529-5807.2016.08.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
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Diao Y, Li GL, Yu AQ, Zheng XW, Xie KQ, Wang YW, Zhou MQ, Ming J, Hu ZL. Cloning and characterization of the UBC gene from lotus (Nelumbo nucifera). Genet Mol Res 2016; 15:gmr8341. [PMID: 27525889 DOI: 10.4238/gmr.15038341] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Protein ubiquitination is extensively involved in the regulation of a considerable number of physiological processes in plant cells. E2 (ubiquitin-conjugating enzyme, UBC), one of the essential enzymes of eukaryotic ubiquitination, catalyzes protein ubiquitination together with E1 and E3. In this study, we cloned four full-length cDNA NnUBCs of Nelumbo nucifera. With the same coding sequence length of 459 bp and coding 153 amino acids, these four genes are highly homologous with the AtUBC1 and AtUBC2 of Arabidopsis thaliana. Quantitative fluorescence polymerase chain reaction showed that these four genes exhibited different expression patterns in different tissues of N. nucifera. Overall, the expression of NnUBC3 was the highest in all plant tissues. Tests of different stress treatments showed that NnUBC3 plays an important role in response to heat, salt, and drought stresses in N. nucifera. Moreover, transgenic Arabidopsis plants (Atubc1-1Atubc2-1 mutant) expressing NnUBC3 presented a wild-type phenotype, indicating that NnUBC3 performs the same function as AtUBC1 and AtUBC2.
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Affiliation(s)
- Y Diao
- College of Forestry and Life Sciences, Chongqing University of Arts and Sciences, Chongqing, China
| | - G L Li
- State Key Laboratory of Hybrid Rice, College of Life Sciences, Wuhan University, Wuhan, Hubei Province, China
| | - A Q Yu
- State Key Laboratory of Hybrid Rice, College of Life Sciences, Wuhan University, Wuhan, Hubei Province, China
| | - X W Zheng
- White Lotus Research Institute of Guangchang, Guangchang, Jiangxi Province, China
| | - K Q Xie
- White Lotus Research Institute of Guangchang, Guangchang, Jiangxi Province, China
| | - Y W Wang
- School of Pharmaceutical Sciences, Wuhan University, Wuhan, Hubei Province, China
| | - M Q Zhou
- Lotus Engineering Research Center of Hubei Province, Wuhan University, Wuhan, Hubei Province, China
| | - J Ming
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Z L Hu
- State Key Laboratory of Hybrid Rice, College of Life Sciences, Wuhan University, Wuhan, Hubei Province, China
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Li XX, Li GL, He JL. [The principle and application of TCR gene mutation test]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2016; 34:478-480. [PMID: 27514567 DOI: 10.3760/cma.j.issn.1001-9391.2016.06.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
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35
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Chen HP, Deng SP, Dai ML, Zhu CH, Li GL. Molecular cloning, characterization, and expression profiles of androgen receptors in spotted scat (Scatophagus argus). Genet Mol Res 2016; 15:gmr7838. [PMID: 27173207 DOI: 10.4238/gmr.15027838] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Androgen plays critical roles in vertebrate reproductive systems via androgen receptors (ARs). In the present study, the full-length spotted scat (Scatophagus argus) androgen receptor (sAR) cDNA sequence was cloned from testis. The sAR cDNA measured 2448 bp in length with an open-reading frame of 2289 bp, encoding 763 amino acids. Amino acid alignment analyses showed that the sARs exhibited highly evolutionary conserved functional domains. Phylogenetically, the sARs clustered within the ARβ common vertebrate group. Real-time polymerase chain reaction (RT-PCR) revealed that sAR expression varied in level and distribution throughout the tissues of both females and males. sAR expression was detected during testicular development by quantitative RT-PCR. The results showed that the highest transcription of sARs was observed in the mid-testicular stage, and remained at a high expression level until the late-testicular stage. In addition, the effects of 17α-methyltestosterone (MT) and estrogen (E2) on the expression of sARs in ovaries were determined using quantitative RT-PCR. sAR expression increased at 12 and 24 h post-MT treatment and decreased with E2 treatment. The present study provides preliminary evidence indicating gonadal plasticity of spotted scat under exogenous steroidal hormone treatments. It also provides a theoretical basis for sex reversal and production of artificial pseudo-males for female monosex breeding.
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Affiliation(s)
- H P Chen
- Key Laboratory of Aquaculture in South China Sea for Aquatic Economic, Animal of Guangdong Higher Education Institutes, Fisheries College, Guangdong Ocean University, Zhanjiang, China
| | - S P Deng
- Key Laboratory of Aquaculture in South China Sea for Aquatic Economic, Animal of Guangdong Higher Education Institutes, Fisheries College, Guangdong Ocean University, Zhanjiang, China
| | - M L Dai
- Key Laboratory of Aquaculture in South China Sea for Aquatic Economic, Animal of Guangdong Higher Education Institutes, Fisheries College, Guangdong Ocean University, Zhanjiang, China
| | - C H Zhu
- Key Laboratory of Aquaculture in South China Sea for Aquatic Economic, Animal of Guangdong Higher Education Institutes, Fisheries College, Guangdong Ocean University, Zhanjiang, China
| | - G L Li
- Key Laboratory of Aquaculture in South China Sea for Aquatic Economic, Animal of Guangdong Higher Education Institutes, Fisheries College, Guangdong Ocean University, Zhanjiang, China
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36
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Li GL, Yu R, Qi T, Möhwald H, Shchukin DG. Double-Shelled Polymer Nanocontainers Decorated with Poly(ethylene glycol) Brushes by Combined Distillation Precipitation Polymerization and Thiol–Yne Surface Chemistry. Macromolecules 2016. [DOI: 10.1021/acs.macromol.5b02406] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Guo Liang Li
- National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, P. R. China
- Max Planck
Institute
of Colloids and Interfaces, Wissenschaftspark Golm, 14476 Potsdam, Germany
- Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
- Stephenson Institute for Renewable Energy, Department of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD, United Kingdom
| | - Ran Yu
- National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, P. R. China
- Max Planck
Institute
of Colloids and Interfaces, Wissenschaftspark Golm, 14476 Potsdam, Germany
- Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
- Stephenson Institute for Renewable Energy, Department of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD, United Kingdom
| | - Tao Qi
- National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, P. R. China
- Max Planck
Institute
of Colloids and Interfaces, Wissenschaftspark Golm, 14476 Potsdam, Germany
- Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
- Stephenson Institute for Renewable Energy, Department of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD, United Kingdom
| | - Helmuth Möhwald
- National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, P. R. China
- Max Planck
Institute
of Colloids and Interfaces, Wissenschaftspark Golm, 14476 Potsdam, Germany
- Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
- Stephenson Institute for Renewable Energy, Department of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD, United Kingdom
| | - Dmitry G. Shchukin
- National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, P. R. China
- Max Planck
Institute
of Colloids and Interfaces, Wissenschaftspark Golm, 14476 Potsdam, Germany
- Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
- Stephenson Institute for Renewable Energy, Department of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD, United Kingdom
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Li GL, Chen HP, Deng SP, Ye M, Jiang S, Chan SF, Zhu CH. In vivo and in vitro inhibitory action of 17β-estradiol and environmental estrogen 4-nonylphenol on gonad-inhibiting hormone (GIH) expression in the eyestalks of Litopenaeus vannamei. Genet Mol Res 2015; 14:14056-65. [PMID: 26535720 DOI: 10.4238/2015.october.29.25] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The gonad-inhibiting hormone (GIH) belongs to a neuropeptide family synthesized and released in an X-organ sinus gland complex of crustacean eyestalks. GIH inhibits crustacean ovarian maturation by suppressing vitellogenin (Vtg) synthesis, whereas estrogen is responsible for the stimulation of vitellogenesis (not established). In this study, the effects of 17β-estradiol (E2, 10(-6) M), estrogen receptor antagonist tamoxifen (TAM, 10(-6), 10(-7), and 10(-8) M), and the environmental estrogen nonylphenol (NP, 1 μg/L and 100 μg/L) on LvGIH expression in the eyestalks of shrimp were determined by quantitative real-time PCR. Results showed that LvGIH expression decreased significantly during the L. vannamei ovarian maturation cycle. E2 and NP significantly reduced LvGIH transcripts in vivo, but TAM neutralized the inhibitory action of E2 in a dose-dependent manner (P < 0.05). In addition, the LvGIH expression levels decreased significantly in a time-dependent manner (P < 0.05) when ovary fragments were cultured in vitro with E2. The results of this study suggested that estrogen regulates GIH expression in L. vannamei eyestalks. E2 promoted ovarian development not only by directly upregulating vitellogenesis in the hepatopancreas, but it was also capable of downregulating LvGIH expression, which indirectly resulted in the stimulation of L. vannamei vitellogenesis.
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Affiliation(s)
- G L Li
- Key Laboratory of Aquaculture in South China Sea for Aquatic Economic Animal of Guangdong Higher Education Institutes, Fisheries College, Guangdong Ocean University, Zhanjiang, China
| | - H P Chen
- Key Laboratory of Aquaculture in South China Sea for Aquatic Economic Animal of Guangdong Higher Education Institutes, Fisheries College, Guangdong Ocean University, Zhanjiang, China
| | - S P Deng
- Key Laboratory of Aquaculture in South China Sea for Aquatic Economic Animal of Guangdong Higher Education Institutes, Fisheries College, Guangdong Ocean University, Zhanjiang, China
| | - M Ye
- Key Laboratory of Aquaculture in South China Sea for Aquatic Economic Animal of Guangdong Higher Education Institutes, Fisheries College, Guangdong Ocean University, Zhanjiang, China
| | - S Jiang
- Key Laboratory of Aquaculture in South China Sea for Aquatic Economic Animal of Guangdong Higher Education Institutes, Fisheries College, Guangdong Ocean University, Zhanjiang, China
| | - S F Chan
- Key Laboratory of Aquaculture in South China Sea for Aquatic Economic Animal of Guangdong Higher Education Institutes, Fisheries College, Guangdong Ocean University, Zhanjiang, China
| | - C H Zhu
- Key Laboratory of Aquaculture in South China Sea for Aquatic Economic Animal of Guangdong Higher Education Institutes, Fisheries College, Guangdong Ocean University, Zhanjiang, China
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Abstract
Heterosis has been widely used in crop breeding and production. However, a shortage of genes known to function in heterosis significantly limits our understanding of the molecular basis underlying heterosis. Here, we report 740 differentially expressed genes (DEGs) in the leaves of the hybrid millet Zhang No.5 and its parents at the grain filling stage determined using Solexa Illumina digital gene expression. Of the 740 DEGs, 546 were from the hybrid and its parents and most were up-regulated in the hybrid. Particularly, a large number of DEGs related to starch and carbohydrate metabolism and 2 DEGs encoding chlorophyll a/b binding proteins were up-regulated in hybrid millet. Moreover, all DEGs were enriched in the biological process and molecular function, and no DEGs were found to be enriched in the cellular component of GO terms. Pathway enrichment using KEGG showed that several DEGs were enriched in the circadian rhythm pathway. Further analysis revealed that the altered circadian rhythm, which mediates photosynthesis and carbohydrate accumulation, may play an important role in heterosis of the hybrid millet.
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Affiliation(s)
- Z H Liu
- Institute of Genetics and Physiology, Hebei Academy of Agriculture and Forestry Sciences, Plant Genetic Engineering Center of Hebei Province, Shijiazhuang, Hebei Province, China
| | - H M Zhang
- Institute of Genetics and Physiology, Hebei Academy of Agriculture and Forestry Sciences, Plant Genetic Engineering Center of Hebei Province, Shijiazhuang, Hebei Province, China
| | - G L Li
- Institute of Genetics and Physiology, Hebei Academy of Agriculture and Forestry Sciences, Plant Genetic Engineering Center of Hebei Province, Shijiazhuang, Hebei Province, China
| | - Y M Zhang
- Institute of Genetics and Physiology, Hebei Academy of Agriculture and Forestry Sciences, Plant Genetic Engineering Center of Hebei Province, Shijiazhuang, Hebei Province, China
| | - H C Li
- Institute of Genetics and Physiology, Hebei Academy of Agriculture and Forestry Sciences, Plant Genetic Engineering Center of Hebei Province, Shijiazhuang, Hebei Province, China
| | - X L Guo
- Institute of Genetics and Physiology, Hebei Academy of Agriculture and Forestry Sciences, Plant Genetic Engineering Center of Hebei Province, Shijiazhuang, Hebei Province, China
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Cai W, Zhang JY, Li GL, Chang GP, Wei YL, Zhang HG, Lu JQ. Isolation and Purification of Sesquiterpene Lactones from Ixeris sonchifolia (Bunge) Hance by High-Speed Counter- Current Chromatography and Semi-Preparative High Performance Liquid Chromatography. TROP J PHARM RES 2015. [DOI: 10.4314/tjpr.v13i12.17] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Zeng J, Gao H, Li GL, Sun J, Ma H. Comparison of Effects of Oligosaccharides on Physicochemical Properties of Corn Starch. TROP J PHARM RES 2014. [DOI: 10.4314/tjpr.v13i7.7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Wang H, Yan X, Li GL, Pilz-Allen C, Möhwald H, Shchukin D. Sono-assembly of highly biocompatible polysaccharide capsules for hydrophobic drug delivery. Adv Healthc Mater 2014; 3:825-31. [PMID: 24323846 DOI: 10.1002/adhm.201300596] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [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: 10/30/2013] [Revised: 11/18/2013] [Indexed: 01/24/2023]
Abstract
Cells like sugar. General synthesis and potential of intracellular hydrophobic drug delivery of single-component polysaccharide capsules are pursued. The capsules can be generally assembled through hydrogen bonding networks but show striking shell robustness. The evidenced cell internalization, stimuli-responsiveness to local pH changes and high biocompatibilities of the capsules specifically favor their potential intracellular drug delivery.
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Affiliation(s)
- Hongqiang Wang
- Max Planck Institute of Colloids and Interfaces; 14424 Potsdam Germany
| | - Xuehai Yan
- Max Planck Institute of Colloids and Interfaces; 14424 Potsdam Germany
- Institute of Process Engineering; Chinese Academy of Sciences; P. R. China
| | - Guo Liang Li
- Max Planck Institute of Colloids and Interfaces; 14424 Potsdam Germany
| | | | - Helmuth Möhwald
- Max Planck Institute of Colloids and Interfaces; 14424 Potsdam Germany
| | - Dmitry Shchukin
- Max Planck Institute of Colloids and Interfaces; 14424 Potsdam Germany
- Stephenson Institute for Renewable Energy; Department of Chemistry; University of Liverpool; Crown Street Liverpool L69 7ZD UK
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Zeng J, Gao H, Li GL. Effect of Sucrose Esters on the Physicochemical Properties of Wheat Starch. TROP J PHARM RES 2013. [DOI: 10.4314/tjpr.v12i5.4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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44
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Huang LX, Yao LX, He ZH, Zhou CM, Li GL, Yang BM, Li YF. Uptake of arsenic species by turnip (Brassica rapa L.) and lettuce (Lactuca sativa L.) treated with roxarsone and its metabolites in chicken manure. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2013; 30:1546-55. [PMID: 23859781 DOI: 10.1080/19440049.2013.812809] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Roxarsone is an organoarsenic feed additive that can be metabolised to other higher toxic arsenic (As) species in animal manure such as arsenate, arsenite, monomethylarsonic acid, dimethylarsinic acid, 3-amino-4-hydroxyphenylarsonic acid and other unknown As species. The accumulation, transport and distribution of As species in turnip (Brassica rapa L.) and lettuce (Lactuca sativa L.) amended with roxarsone and its metabolites in chicken manure were investigated. Results showed arsenite was the predominant As form, followed by arsenate in turnip and lettuce plants, and a low content of dimethylarsinic acid was detected only in lettuce roots. Compared with the control plants treated with chicken manure without roxarsone and its metabolites, the treatments containing roxarsone and its metabolites increased arsenite content by 2.0-3.2% in turnip shoots, by 6.6-6.7% in lettuce shoots, by 11-44% in turnip tubers and by 18-20% in lettuce roots at two growth stages. The enhanced proportion of arsenate content in turnip shoots, turnip tubers and lettuce roots was 4.3-14%, 20-35% and 70%, respectively, while dimethylarsinic acid content in lettuce roots increased 2.4 times. Results showed that the occurrence of dimethylarsinic acid in lettuce roots might be converted from the inorganic As species and the uptake of both inorganic and organic As compounds in turnip and lettuce plants would be enhanced by roxarsone and its metabolites in chicken manure. The pathway of roxarsone metabolites introduced into the human body via roxarsone → animal → manure → soil → crop was indicated.
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Affiliation(s)
- Lian Xi Huang
- a Institute of Agricultural Resources and Environment , Guangdong Academy of Agricultural Sciences , Guangzhou , China
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Li GL, Zheng Z, Möhwald H, Shchukin DG. Silica/polymer double-walled hybrid nanotubes: synthesis and application as stimuli-responsive nanocontainers in self-healing coatings. ACS Nano 2013; 7:2470-2478. [PMID: 23411573 DOI: 10.1021/nn305814q] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [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 report the development of silica/polymer double-walled hybrid nanotubes, which consist of a hollow cavity, a porous silica inner wall, and a stimuli-responsive (pH, temperature, and redox) polymeric outer wall, as a novel nanocontainer system. The length, diameter, wall thickness, and aspect ratio of the hybrid nanotubes are precisely controlled in the range of 48-506 nm, 41-68 nm, 3-24 nm, and 1.2-7.6, respectively. The hybrid nanotubes loaded with active molecules exhibit morphology-dependent release and pH-, temperature-, redox-responsive release, which enable a wide range of applications from energy storage to drug delivery and self-healing coatings for metal corrosion protection.
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Affiliation(s)
- Guo Liang Li
- Department of Interfaces, Max-Planck Institute of Colloids and Interfaces, 14476 Potsdam, Germany.
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Li GL, Möhwald H, Shchukin DG. Precipitation polymerization for fabrication of complex core–shell hybrid particles and hollow structures. Chem Soc Rev 2013; 42:3628-46. [DOI: 10.1039/c3cs35517a] [Citation(s) in RCA: 238] [Impact Index Per Article: 21.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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47
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Li HB, Yu S, Li GL, Deng H. Lead contamination and source in Shanghai in the past century using dated sediment cores from urban park lakes. Chemosphere 2012; 88:1161-1169. [PMID: 22537888 DOI: 10.1016/j.chemosphere.2012.03.061] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2011] [Revised: 03/15/2012] [Accepted: 03/20/2012] [Indexed: 05/31/2023]
Abstract
Lead contamination becomes of importance to urban resident health worldwide, especially for child health and growth. Undisturbed lake sediment cores are increasingly employed as a useful tool to backdate environmental contamination history. Five intact sediment cores collected from lakes in five urban parks were dated using (210)Pb and analyzed for total Pb content and isotope ratio to reconstruct the Pb contamination history over the last century in Shanghai, China. Total Pb content in the sediment cores increased by about 2- to 3-fold since 1900s. The profile of Pb flux in each sediment core revealed a remarkable increase of Pb contamination in Shanghai over the past century, especially in the latest three decades when China was experiencing a rapid economic and industrial development. Significant correlations were found between Pb fluxes in sediment cores and Pb emission from coal combustion in Shanghai. Coal combustion emission dominated anthropogenic Pb sources during the past century contributing from 52% to 69% of total Pb in cores, estimated by a three-end member model of Pb isotope ratios. Leaded gasoline emission generally contributed <30% of total Pb, which was banned by 1997 in the Shanghai region. Our results implicate that coal combustion-based energy consumption should be replaced, or at least partially replaced, to reduce health risks of Pb contamination in Shanghai.
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Affiliation(s)
- H B Li
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
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Affiliation(s)
- Guo Liang Li
- Department of Chemical & Biomolecular Engineering, National University of Singapore, Kent Ridge, Singapore 119260
| | - Li Qun Xu
- Department of Chemical & Biomolecular Engineering, National University of Singapore, Kent Ridge, Singapore 119260
| | - K. G. Neoh
- Department of Chemical & Biomolecular Engineering, National University of Singapore, Kent Ridge, Singapore 119260
| | - E. T. Kang
- Department of Chemical & Biomolecular Engineering, National University of Singapore, Kent Ridge, Singapore 119260
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Chi LJ, Lu HT, Li GL, Wang XM, Su Y, Xu WH, Shen BZ. Involvement of T helper type 17 and regulatory T cell activity in tumour immunology of bladder carcinoma. Clin Exp Immunol 2011; 161:480-9. [PMID: 20646003 DOI: 10.1111/j.1365-2249.2010.04215.x] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
T helper type 17 (Th17) and regulatory T cells (T(reg) ) play an important role in the pathogenesis of inflammation and autoimmune disorders. Recent studies have suggested that they also had an impact on tumour immunology. However, the relationship between Th17 and T(reg) cells in the pathogenesis of bladder carcinoma is still unclear. Flow cytometry was used to analyse the numbers, phenotype and cytokine production of Th17 cells in peripheral blood and tumour tissue from bladder carcinoma patients, in parallel with analysis of T(reg) cells. The suppressor capacity of T(reg) and the potential effects of interleukin (IL)-2 on the differentiation of Th17 and T(reg) cells in vitro were studied in a T cell stimulation and suppression assays. The results were as follows: Th17 cells were enriched in the tumours of patients with bladder carcinoma compared with the peripheral blood of patients and controls; patients with bladder carcinoma had a higher proportion of T(reg) cells in peripheral blood compared with healthy controls and nearly all patients examined showed a relative enrichment of tumour-infiltrating T(reg) with respect to peripheral blood; there appeared to be an inverse relationship between tumour-infiltrating Th17 and T(reg) cells; IL-2 could convert tumour-infiltrating T(reg) cells cultured in the presence of the autologous irradiated CD3(-) fraction into Th17 cells, down-regulate forkhead box P2 expression and suppressive capacity of T(reg) cells. This study is the first to define the frequency and characteristics of Th17 cells in bladder carcinoma. We suggest that the balance between Th17 and T(reg) cells may be involved in the development or progression of bladder carcinoma.
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Affiliation(s)
- L J Chi
- Department of Neurology, Second Affiliated Hospital of Harbin Medical University, Harbin, China
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50
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Li GL, Tai CA, Neoh KG, Kang ET, Yang X. Hybrid nanorattles of metal core and stimuli-responsive polymer shell for confined catalytic reactions. Polym Chem 2011. [DOI: 10.1039/c1py00054c] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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