1
|
Li K, Fang S, Zhang X, Wei X, Wu P, Zheng R, Liu L, Zhang H. Effects of Environmental Stresses on Synthesis of 2-Phenylethanol and IAA by Enterobacter sp. CGMCC 5087. Microorganisms 2024; 12:663. [PMID: 38674607 PMCID: PMC11052032 DOI: 10.3390/microorganisms12040663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Revised: 03/14/2024] [Accepted: 03/21/2024] [Indexed: 04/28/2024] Open
Abstract
2-Phenylethanol (2-PE) and indole-3-acetic acid (IAA) are important secondary metabolites produced by microorganisms, and their production are closely linked to the growth state of microorganisms and environmental factors. Enterobacter CGMCC 5087 can produce both 2-PE and IAA depending on α-ketoacid decarboxylase KDC4427. This study aimed to investigate the effects of different environment factors including osmotic pressure, temperature, and pH on the synthesis of 2-PE and IAA in Enterobacter sp. CGMCC 5087. The bacteria exhibited an enhanced capacity for 2-PE synthesis while not affecting IAA synthesis under 5% NaCl and pH 4.5 stress conditions. In an environment with pH 9.5, the synthesis capacity of 2-PE remained unchanged while the synthesis capacity of IAA decreased. The synthesis ability of 2-PE was enhanced with an increase in temperature within the range of 25 °C to 37 °C, while the synthesis capacity of IAA was not affected significantly. Additionally, the expression of KDC4427 varied under stress conditions. Under 5% NaCl stress and decreased temperature, expression of the KDC4427 gene was increased. However, altering pH did not result in significant differences in gene expression levels, while elevated temperature caused a decrease in gene expression. Furthermore, molecular docking and molecular dynamics simulations suggested that these conditions may induce fluctuation in the geometry shape of binding cavity, binding energy, and especially the dαC-C- value, which played key roles in affecting the enzyme activity. These results provide insights and strategies for the synthesis of metabolic products 2-PE and IAA in bacterial fermentation, even under unfavorable conditions.
Collapse
Affiliation(s)
- Ke Li
- College of Life Science and Technology, Inner Mongolia Normal University, Hohhot 010022, China; (K.L.); (X.W.); (P.W.)
- Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China; (S.F.); (X.Z.); (H.Z.)
- Shandong Energy Institute, Qingdao 266101, China
- Qingdao New Energy Shandong Laboratory, Qingdao 266101, China
| | - Senbiao Fang
- Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China; (S.F.); (X.Z.); (H.Z.)
- Shandong Energy Institute, Qingdao 266101, China
- Qingdao New Energy Shandong Laboratory, Qingdao 266101, China
| | - Xiao Zhang
- Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China; (S.F.); (X.Z.); (H.Z.)
- Shandong Energy Institute, Qingdao 266101, China
- Qingdao New Energy Shandong Laboratory, Qingdao 266101, China
| | - Xiaodi Wei
- College of Life Science and Technology, Inner Mongolia Normal University, Hohhot 010022, China; (K.L.); (X.W.); (P.W.)
- Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China; (S.F.); (X.Z.); (H.Z.)
- Shandong Energy Institute, Qingdao 266101, China
- Qingdao New Energy Shandong Laboratory, Qingdao 266101, China
| | - Pingle Wu
- College of Life Science and Technology, Inner Mongolia Normal University, Hohhot 010022, China; (K.L.); (X.W.); (P.W.)
- Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China; (S.F.); (X.Z.); (H.Z.)
- Shandong Energy Institute, Qingdao 266101, China
- Qingdao New Energy Shandong Laboratory, Qingdao 266101, China
| | - Rong Zheng
- College of Life Science and Technology, Inner Mongolia Normal University, Hohhot 010022, China; (K.L.); (X.W.); (P.W.)
| | - Lijuan Liu
- Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China; (S.F.); (X.Z.); (H.Z.)
- Shandong Energy Institute, Qingdao 266101, China
- Qingdao New Energy Shandong Laboratory, Qingdao 266101, China
| | - Haibo Zhang
- Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China; (S.F.); (X.Z.); (H.Z.)
- Shandong Energy Institute, Qingdao 266101, China
- Qingdao New Energy Shandong Laboratory, Qingdao 266101, China
| |
Collapse
|
2
|
Guo C, Feng Q, Xie X, Li Y, Hu H, Hu J, Fang S, Shang L. Cross-reaction mediated by distinct key amino acid combinations in the complementary-determining region (CDR) of a monoclonal antibody. J Med Virol 2024; 96:e29430. [PMID: 38285507 DOI: 10.1002/jmv.29430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 12/27/2023] [Accepted: 01/16/2024] [Indexed: 01/31/2024]
Abstract
In immunology, cross-reaction between antigens and antibodies are commonly observed. Prior research has shown that various monoclonal antibodies (mAbs) can recognize a broad spectrum of epitopes related to influenza viruses. However, existing theories on cross-reactions fall short in explaining the phenomena observed. This study explored the interaction characteristics of H1-74 mAb with three peptides: two natural peptides, LVLWGIHHP and LPFQNI, derived from the hemagglutinin (HA) antigen of the H1N1 influenza virus, and one synthetic peptide, WPFQNY. Our findings indicate that the complementarity-determining region (CDR) of H1-74 mAb comprised five antigen-binding sites, containing eight key amino acid residues from the light chain variable region and 16 from the heavy chain variable region. These critical residues formed distinct hydrophobic or hydrophilic clusters and functional groups within the binding sites, facilitating interaction with antigen epitopes through hydrogen bonding, salt bridge formation, and π-π stacking. The study revealed that the formation of the antibody molecule led to the creation of binding groups and small units in the CDR, allowing the antibody to attach to a variety of antigen epitopes through diverse combinations of these small units and functional groups. This unique ability of the antibody to bind with antigen epitopes provides a new molecular basis for explaining the phenomenon of antibody cross-reaction.
Collapse
Affiliation(s)
- Chunyan Guo
- Central Laboratory of Shaanxi Provincial People's Hospital, Xi'an, Shaanxi, China
- Research Center of Cell Immunological Engineering and Technology of Shaanxi Province, Xi'an, Shaanxi, China
- Shaanxi Provincial Key Laboratory of Infection and Immune Diseases, Xi'an, Shaanxi, China
| | - Qing Feng
- Central Laboratory of Shaanxi Provincial People's Hospital, Xi'an, Shaanxi, China
- Research Center of Cell Immunological Engineering and Technology of Shaanxi Province, Xi'an, Shaanxi, China
- Shaanxi Provincial Key Laboratory of Infection and Immune Diseases, Xi'an, Shaanxi, China
| | - Xin Xie
- Central Laboratory of Shaanxi Provincial People's Hospital, Xi'an, Shaanxi, China
| | - Yan Li
- Central Laboratory of Shaanxi Provincial People's Hospital, Xi'an, Shaanxi, China
- Research Center of Cell Immunological Engineering and Technology of Shaanxi Province, Xi'an, Shaanxi, China
- Shaanxi Provincial Key Laboratory of Infection and Immune Diseases, Xi'an, Shaanxi, China
| | - Hanyu Hu
- Shaanxi Ruiqi Biology Sci-Tech Co., Ltd., Xi'an, Shaanxi, China
| | - Jun Hu
- Central Laboratory of Shaanxi Provincial People's Hospital, Xi'an, Shaanxi, China
- Research Center of Cell Immunological Engineering and Technology of Shaanxi Province, Xi'an, Shaanxi, China
| | - Senbiao Fang
- Department of Molecular Pharmacology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin, China
| | - Lijun Shang
- School of Human Sciences, London Metropolitan University, London, UK
| |
Collapse
|
3
|
Mi L, Yuan Z, Que M, Yang Y, Fang S, Wang X. Observation of the short-term curative effect of using SuperPATH approach to treat elderly femoral neck fractures with schizophrenia. Acta Orthop Belg 2023; 89:639-643. [PMID: 38205754 DOI: 10.52628/89.4.9750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2024]
Abstract
As China enters an aging society, the incidence of femoral neck fractures is increasing year by year. For some patients, total hip arthroplasty (THA) is the treatment of choice for displaced femoral neck fractures. Schizophrenia is a common combination of elderly patients with femoral neck fractures, and there are few reports on the treatment. This study describes the short-term efficacy of the supercapsular percutaneously assisted (SuperPATH) approach in the treatment of patients suffered with displaced femoral neck fractures combined with schizophrenia. A retrospective analysis of 20 elderly patients with displaced femoral neck fractures combined with schizophrenia who underwent THA using the SuperPATH approach. Record demographic data, postoperative reexamination of X-ray film to observe the position and the loosening condition of the prosthesis, the length of hospitalization, complications in the hospital and after discharge. The Harris score of hip joint function was used to evaluate postoperative hip joint function. The average age of the 20 patients was 73.1 years. All patients were followed up by outpatient clinic or telephone. The follow-up time was 3-12 months, with an average of 9.2 months. There was no incision infection, no tissue structure damage such as important nerves and blood vessels, and no complications such as early dislocation, loosening of the joint prosthesis, and deep vein thrombosis of lower extremities. The efficacy of the last follow-up was evaluated according to the Harris score of hip joint function: an average of 91 points (78-98 points); 13 cases were excellent, 5 cases were good, and 2 cases were fair. The SuperPATH approach has the advantages of less surgical damage, shorter recovery time, good surgical safety, preserving the normal tension of the muscles around the hip joint, and reducing the incidence rate of early postoperative dislocation of the joint prosthesis. The THA of the SuperPATH approach can treat patients with displaced femoral neck fractures combined with schizophrenia safely and effectively.
Collapse
|
4
|
Fang S, Lei C, Li M, Ming Y, Liu L, Zhou X, Li M. Collaborative effects of 2019-nCoV-Spike mutants on viral infectivity. Comput Struct Biotechnol J 2023; 21:5125-5135. [PMID: 37920812 PMCID: PMC10618117 DOI: 10.1016/j.csbj.2023.10.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 10/14/2023] [Accepted: 10/16/2023] [Indexed: 11/04/2023] Open
Abstract
Background The emerging mutants of the 2019-nCoV coronavirus are posing unprecedented challenges to the pandemic prevention. A thorough, understanding of the mutational characterization responsible for the pathogenic mechanisms of mutations in 2019-nCoV-Spike is indispensable for developing effective drugs and new vaccines. Methods We employed computational methods and viral infection assays to examine the interaction pattern and binding affinity between ACE2 and both single- and multi-mutants of the Spike proteins. Results Using data from the CNCB-NGDC databank and analysis of the 2019-nCoV-Spike/ACE2 interface crystal structure, we identified 31 amino acids that may significantly contribute to viral infectivity. Subsequently, we performed molecular dynamics simulations for 589 single-mutants that emerged from the nonsynonymous substitutions of the aforementioned 31 residues. Ultimately, we discovered 8 single-mutants that exhibited significantly higher binding affinities (<-65.00 kcal/mol) to ACE2 compared with the wild-type Spike protein (-55.07 kcal/mol). The random combination of these 8 single-mutants yielded 184 multi-mutants, of which 60 multi-mutants exhibit markedly enhanced binding affinities (<-65.00 kcal/mol). Moreover, the binding free energy analyses of all 773 mutants (including 589 single- and 184 multi-mutants) revealed that Y449R and S494R had a synergistic effect on the binding affinity with other mutants, which were confirmed by virus infection assays of six randomly selected multi-mutants. More importantly, the findings of virus infection assay further validated a strong association between the binding free energy of Spike/ACE2 complex and the viral infectivity. Conclusions These findings will greatly contribute to the future surveillance of viruses and rational design of therapeutics.
Collapse
Affiliation(s)
- Senbiao Fang
- Hunan Provincial Key Lab on Bioinformatics, School of Computer Science and Engineering, Central South University, Changsha 410083, China
| | - Chuqi Lei
- Hunan Provincial Key Lab on Bioinformatics, School of Computer Science and Engineering, Central South University, Changsha 410083, China
| | - Meng Li
- Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
| | - Yongfan Ming
- Hunan Provincial Key Lab on Bioinformatics, School of Computer Science and Engineering, Central South University, Changsha 410083, China
| | - Liren Liu
- Department of Molecular Pharmacology, Tianjin Medical University Cancer Institute & Hospital; National Clinical Research Center for Cancer; Key Laboratory of Cancer Prevention and Therapy, Tianjin; Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China
| | - Xuming Zhou
- Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
| | - Min Li
- Hunan Provincial Key Lab on Bioinformatics, School of Computer Science and Engineering, Central South University, Changsha 410083, China
| |
Collapse
|
5
|
Pan B, Fang S, Wang L, Pan Z, Li M, Liu L. Quercetin: A promising drug candidate against the potential SARS-CoV-2-Spike mutants with high viral infectivity. Comput Struct Biotechnol J 2023; 21:5092-5098. [PMID: 37881508 PMCID: PMC10597750 DOI: 10.1016/j.csbj.2023.10.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 10/14/2023] [Accepted: 10/16/2023] [Indexed: 10/27/2023] Open
Abstract
The emergence of SARS-CoV-2-Spike mutants not only enhances viral infectivity but also lead to treatment failure. Gaining a comprehensive understanding of the molecular binding mode between the mutant SARS-CoV-2-Spike and human ACE2 receptor is crucial for therapeutic development against this virus. Building upon our previous predictions and verifications regarding heightened viral infectivity of six potential SARS-CoV-2-Spike mutants, this study aims to further investigate the potential disruption of the interaction between these mutants and ACE2 by quercetin, a Chinese herbal compound. Molecular docking and dynamics simulations results reveal that the binding sites of quercetin particularly enriched around a specific "cavity" at the interface of Spike/ACE2 complex, indicating a favorable region for quercetin to interfere with Spike/ACE2 interaction. Virus infection assay confirms that quercetin not only attenuates wild-type virus infectivity but also suppresses the infectivity of all six tested SARS-CoV-2-Spike mutants. Therefore, quercetin represents a promising therapeutic candidate against both wild-type and potential future variants of SARS-CoV-2 exhibiting high viral infectivity.
Collapse
Affiliation(s)
- Boyu Pan
- Department of Molecular Pharmacology, Tianjin Medical University Cancer Institute & Hospital; National Clinical Research Center for Cancer; Key Laboratory of Cancer Prevention and Therapy, Tianjin; Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China
| | - Senbiao Fang
- School of Computer Science and Engineering; Central South University, Changsha 410006, Hunan, China
| | - Liangjiao Wang
- Department of Molecular Pharmacology, Tianjin Medical University Cancer Institute & Hospital; National Clinical Research Center for Cancer; Key Laboratory of Cancer Prevention and Therapy, Tianjin; Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China
| | - Zhanyu Pan
- Department of Integrative Oncology; Tianjin Medical University Cancer Institute and Hospital; Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, China
| | - Min Li
- School of Computer Science and Engineering; Central South University, Changsha 410006, Hunan, China
| | - Liren Liu
- Department of Molecular Pharmacology, Tianjin Medical University Cancer Institute & Hospital; National Clinical Research Center for Cancer; Key Laboratory of Cancer Prevention and Therapy, Tianjin; Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China
| |
Collapse
|
6
|
Li CY, Chen S, Qian WL, Yang L, Zheng Q, Chen AJ, Chen J, Huang K, Fang S, Wang P, Hu L, Liu XR, Zhao XQ, Tan N, Cai T. [Clinical observation on the efficacy and safety of dupilumab in the treatment of moderate to severe atopic dermatitis]. Zhonghua Yu Fang Yi Xue Za Zhi 2023; 57:1590-1595. [PMID: 37859375 DOI: 10.3760/cma.j.cn112150-20221103-01063] [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: 10/21/2023]
Abstract
To investigate the clinical efficacy and safety of dupilumab in the treatment of moderate to severe atopic dermatitis (AD) in China. A small sample self-controlled study before and after treatment was conducted to retrospective analysis patients with moderate to severe AD treated with dupilumab in the department of dermatology of the First Affiliated Hospital of Chongqing Medical University from July 2020 to March 2022. Dupilumab 600 mg was injected subcutaneously at week 0, and then 300 mg was injected subcutaneously every 2 weeks. The condition was evaluated by SCORAD(severity scoring of atopic dermatitis), NRS(numerical rating scale), DLQI(dermatology life quality index) and POEM(patient-oriented eczema measure). The improvement of SCORAD, NRS, DLQI and POEM was analyzed by paired t test and non-parametric paired Wilcoxon. The results showed that a total of 67 patients with moderate to severe AD received dupilumab treatment, of which 41 patients (the course of treatment was more than 6 weeks) had reduced the severity of skin lesions, improved quality of life and reduced pruritus. A total of 23 patients completed 16 weeks of treatment. At 4, 8, 12 and 16 weeks, SCORAD, NRS, DLQI and POEM decreased compared with the baseline, and the differences were statistically significant. SCORAD (50.13±15.19) at baseline, SCORAD (36.08±11.96)(t=6.049,P<0.001) at week 4,SCORAD (28.04±11.10)(t=10.471,P<0.001) at week 8, SCORAD (22.93±9.72)(t=12.428,P<0.001) at week 12, SCORAD (16.84±7.82)(t=14.609,P<0.001) at week 16, NRS 7(6,8) at baseline, NRS 4(3,5)(Z=-3.861,P<0.001) at week 4, NRS 2(1,4)(Z=-4.088,P<0.001) at week 8, NRS 1(0,2)(Z=-4.206,P<0.001) at week 12, NRS 2(0,2)(Z=-4.222,P<0.001) at week 16, DLQI (13.83±5.71) at baseline, DLQI (8.00±4.02)(t=6.325,P<0.001) at week 4, DLQI (5.61±3.50)(t=8.060,P<0.001) at week 8, DLQI (3.96±1.99)(t=8.717,P<0.001) at week 12, DLQI (2.70±1.89)(t=10.355,P<0.001) at week 16, POEM (18.04±6.41) at baseline, POEM (9.70±4.70)(t=7.031,P<0.001) at week 4, POEM (7.74±3.48)(t=8.806,P<0.001) at week 8, POEM (6.35±3.33)(t=10.474,P<0.001) at week 12, POEM (4.26±2.51)(t=11.996,P<0.001) at week 16. In the 16th week, 100%(23 patients), 91.3%(21 patients), 34.8%(8 patients) and 8.7%(2 patients) of 23 patients reached SCORAD30, SCORAD50, SCORAD70, and SCORAD90 statuses, respectively. There were 82.6%(19 patients), 95.7%(22 patients) and 95.7%(22 patients) of 23 patients with NRS, DLQI and POEM improved by≥4 points compared with baseline. Twelve patients with AD who continued to receive dupilumab after 16 weeks showed further improvement in skin lesions. The adverse events were conjunctivitis and injection site reaction. In conclusion, dupilumab is an effective and safe treatment for moderate and severe AD. However, the longer-term efficacy and safety require further studies involving larger sample sizes and a longer follow-up time.
Collapse
Affiliation(s)
- C Y Li
- Department of Dermatology, the First Affiliated Hospital of Chongqing Medical University,Chongqing 400042, China
| | - S Chen
- Department of Dermatology, the First Affiliated Hospital of Chongqing Medical University,Chongqing 400042, China
| | - W L Qian
- Department of Dermatology, the First Affiliated Hospital of Chongqing Medical University,Chongqing 400042, China
| | - L Yang
- Department of Dermatology, the First Affiliated Hospital of Chongqing Medical University,Chongqing 400042, China
| | - Q Zheng
- Department of Dermatology, the First Affiliated Hospital of Chongqing Medical University,Chongqing 400042, China
| | - A J Chen
- Department of Dermatology, the First Affiliated Hospital of Chongqing Medical University,Chongqing 400042, China
| | - J Chen
- Department of Dermatology, the First Affiliated Hospital of Chongqing Medical University,Chongqing 400042, China
| | - K Huang
- Department of Dermatology, the First Affiliated Hospital of Chongqing Medical University,Chongqing 400042, China
| | - S Fang
- Department of Dermatology, the First Affiliated Hospital of Chongqing Medical University,Chongqing 400042, China
| | - P Wang
- Department of Dermatology, the First Affiliated Hospital of Chongqing Medical University,Chongqing 400042, China
| | - L Hu
- Department of Dermatology, the First Affiliated Hospital of Chongqing Medical University,Chongqing 400042, China
| | - X R Liu
- Department of Dermatology, the First Affiliated Hospital of Chongqing Medical University,Chongqing 400042, China
| | - X Q Zhao
- Department of Dermatology, the First Affiliated Hospital of Chongqing Medical University,Chongqing 400042, China
| | - N Tan
- Department of Dermatology, the First Affiliated Hospital of Chongqing Medical University,Chongqing 400042, China
| | - T Cai
- Department of Dermatology, the First Affiliated Hospital of Chongqing Medical University,Chongqing 400042, China
| |
Collapse
|
7
|
Li S, Shen X, Qin XX, Fang S, Chen J, Yang HJ. Analysis of the factors influencing male infertility of reproductive age in Jinan. Eur Rev Med Pharmacol Sci 2023; 27:7092-7100. [PMID: 37606119 DOI: 10.26355/eurrev_202308_33282] [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: 08/23/2023]
Abstract
OBJECTIVE The World Health Organization (WHO) defines infertility as a person failing to achieve a pregnancy after 12 months or more of regular unprotected sexual intercourse. Infertility includes female infertility and male infertility. The aim of this paper is to study the etiology of infertility and related influencing factors in men of reproductive age in Jinan. PATIENTS AND METHODS In this study, 172 male infertile patients who attended the Department of Assisted Reproduction of Shandong Provincial Maternal and Child Health Hospital in Shandong, China and the Infertility Clinic of Jinan Central Hospital in Shandong, China from August 2021 to April 2022 are selected as the study population (infertility group). A convenience sampling method is used to select 257 men from couples attending the Obstetrics Department of Qilu Hospital in Shandong, China, the Obstetrics Department of the Second Hospital of Shandong University in Shandong, China, and the Obstetrics Department of Maternal and Child Health Hospital in Shandong, China from October 2021 to February 2022 as the study subjects (control group). A self-designed questionnaire is used to conduct the survey, which includes basic personal information, lifestyle information, marital and family-related information, and one-way and multi-way logistic regression analyses are performed. RESULTS The average age of the case group and the control group are 34.03±5.13 years old and 33.61±8.18 years old; the average height is 175.80±5.91 cm and 176.78±5.25 cm; the average weight is 80.28±14.70 kg and 83.09±45.36 kg. The differences in age, height, and weight between the case group and the control group are not statistically significant by t-test. Moderate oligospermia is the predominant cause of infertility in men of reproductive age in Jinan. A multifactorial logistic regression analysis yields that academic qualifications (OR=2.518, 95% CI: 1.023 to 6.196), coffee consumption (OR=7.692, 95% CI: 1.623 to 36.460), living in a room that had been renovated within a period of time (OR=2.769, 95% CI: 1.104 to 6.949), stress level (OR=47.280, 95% CI: 23.656-94.494), quality of sexual life (OR=3.352, 95% CI: 1.331-8.442), and duration of couple separation (OR=3.851, 95% CI: 1.094-13.557) are the main risk factors for infertility in men of reproductive age in Jinan. CONCLUSIONS In this study, a total of 6 risk factors are screened for male infertility in Jinan in the reproductive age, including high academic qualifications, coffee consumption, living in a room that has finished renovation within 3 months, high stress, poor quality of sexual life, and long spousal separation. Three factors can be controlled, avoided, or reduced through personal actions; the factors are coffee consumption, living in a room that has finished renovation within 3 months, and high stress, all of which may reduce the level of male reproductive health.
Collapse
Affiliation(s)
- S Li
- Department of Maternal and Child Health, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.
| | | | | | | | | | | |
Collapse
|
8
|
Liu H, Fang S, Zhao L, Men X, Zhang H. A Single Active-Site Mutagenesis Confers Enhanced Activity and/or Changed Product Distribution to a Pentalenene Synthase from Streptomyces sp. PSKA01. Bioengineering (Basel) 2023; 10:bioengineering10030392. [PMID: 36978783 PMCID: PMC10045451 DOI: 10.3390/bioengineering10030392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 03/16/2023] [Accepted: 03/20/2023] [Indexed: 03/30/2023] Open
Abstract
Pentalenene is a ternary cyclic sesquiterpene formed via the ionization and cyclization of farnesyl pyrophosphate (FPP), which is catalyzed by pentalenene synthase (PentS). To better understand the cyclization reactions, it is necessary to identify more key sites and elucidate their roles in terms of catalytic activity and product specificity control. Previous studies primarily relied on the crystal structure of PentS to analyze and verify critical active sites in the active cavity, while this study started with the function of PentS and screened a novel key site through random mutagenesis. In this study, we constructed a pentalenene synthetic pathway in E. coli BL21(DE3) and generated PentS variants with random mutations to construct a mutant library. A mutant, PentS-13, with a varied product diversity, was obtained through shake-flask fermentation and product identification. After sequencing and the functional verification of the mutation sites, it was found that T182A, located in the G2 helix, was responsible for the phenotype of PentS-13. The site-saturation mutagenesis of T182 demonstrated that mutations at this site not only affected the solubility and activity of the enzyme but also affected the specificity of the product. The other products were generated through different routes and via different carbocation intermediates, indicating that the 182 active site is crucial for PentS to stabilize and guide the regioselectivity of carbocations. Molecular docking and molecular dynamics simulations suggested that these mutations may induce changes in the shape and volume of the active cavity and disturb hydrophobic/polar interactions that were sufficient to reposition reactive intermediates for alternative reaction pathways. This article provides rational explanations for these findings, which may generally allow for the protein engineering of other terpene synthases to improve their catalytic efficiency or modify their specificities.
Collapse
Affiliation(s)
- Hongshuang Liu
- State Key Laboratory of Bio-Based Material and Green Papermaking, School of Bioengineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan 250316, China
- CAS Key Laboratory of Biobased Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China
| | - Senbiao Fang
- CAS Key Laboratory of Biobased Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China
- Shandong Energy Institute, Qingdao 266101, China
| | - Lin Zhao
- State Key Laboratory of Bio-Based Material and Green Papermaking, School of Bioengineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan 250316, China
| | - Xiao Men
- CAS Key Laboratory of Biobased Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China
- Shandong Energy Institute, Qingdao 266101, China
| | - Haibo Zhang
- CAS Key Laboratory of Biobased Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China
- Shandong Energy Institute, Qingdao 266101, China
| |
Collapse
|
9
|
Ye Q, Chen KJ, Jia M, Deng LJ, Fang S. Generalized lichen sclerosus et atrophicus combined with ankylosing spondylitis responding to secukinumab. Scand J Rheumatol 2023; 52:217-218. [PMID: 36124779 DOI: 10.1080/03009742.2022.2112835] [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: 10/14/2022]
Affiliation(s)
- Q Ye
- Department of Dermatology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, P.R. China
| | - K-J Chen
- Department of Dermatology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, P.R. China
| | - M Jia
- Department of Dermatology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, P.R. China
| | - L-J Deng
- Department of Dermatology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, P.R. China
| | - S Fang
- Department of Dermatology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, P.R. China
| |
Collapse
|
10
|
Pan B, Xia Y, Fang S, Ai J, Wang K, Zhang J, Du C, Chen Y, Liu L, Yan S. Integrated network pharmacology and serum metabolomics approach deciphers the anti-colon cancer mechanisms of Huangqi Guizhi Wuwu Decoction. Front Pharmacol 2022; 13:1043252. [PMID: 36313348 PMCID: PMC9607907 DOI: 10.3389/fphar.2022.1043252] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Accepted: 09/28/2022] [Indexed: 12/01/2022] Open
Abstract
Huangqi Guizhi Wuwu Decoction (HGWD), as a classic Chinese herbal decoction, has been widely used in treating various diseases for hundreds of years. However, systematically elucidating its mechanisms of action remains a great challenge to the field. In this study, taking advantage of the network pharmacology approach, we discovered a potential new use of HGWD for patients with colon cancer (CC). Our in vivo result showed that orally administered HGWD markedly inhibited the growth of CC xenografts in mice. The subsequent enrichment analyses for the core therapeutic targets revealed that HGWD could affect multiple biological processes involving CC growth, such as metabolic reprogramming, apoptosis and immune regulation, through inhibiting multiple cell survival-related signalings, including MAPK and PI3K-AKT pathways. Notably, these in silico analysis results were most experimentally verified by a series of in vitro assays. Furthermore, our results based on serum metabolomics showed that the lipid metabolic pathways, including fatty acid biosynthesis and cholesterol metabolism, play key roles in delivery of the anti-CC effect of HGWD on tumor-bearing mice, and that cytochrome P450 family 2 subfamily E member 1 (CYP2E1) is a potential therapeutic target. Together, our integrated approach reveals a therapeutic effect of HGWD on CC, providing a valuable insight into developing strategies to predict and interpret the mechanisms of action for Chinese herbal decoctions.
Collapse
Affiliation(s)
- Boyu Pan
- Tianjin Key Laboratory of Acute Abdomen Disease Associated Organ Injury and ITCWM Repair, ITCWM Hospital, Tianjin University, Tianjin, China
- Department of Molecular Pharmacology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin’s Clinical Research Center for Cancer, Tianjin, China
| | - Yafei Xia
- Tianjin Key Laboratory of Acute Abdomen Disease Associated Organ Injury and ITCWM Repair, ITCWM Hospital, Tianjin University, Tianjin, China
| | - Senbiao Fang
- Department of Molecular Pharmacology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin’s Clinical Research Center for Cancer, Tianjin, China
| | - Jun Ai
- Department of Laboratory Animal Science, Tianjin Medical University, Tianjin, China
| | - Kunpeng Wang
- Department of Oral and Maxillofacial Surgery, Stomatological Hospital, Tianjin Medical University, Tianjin, China
| | - Jian Zhang
- Department of Molecular Pharmacology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin’s Clinical Research Center for Cancer, Tianjin, China
| | - Chunshuang Du
- Department of Pharmacy, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin’s Clinical Research Center for Cancer, Tianjin, China
| | - Yuzhou Chen
- Department of Pharmaceutics, College of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- *Correspondence: Shu Yan, ; Liren Liu, ; Yuzhou Chen,
| | - Liren Liu
- Department of Molecular Pharmacology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin’s Clinical Research Center for Cancer, Tianjin, China
- *Correspondence: Shu Yan, ; Liren Liu, ; Yuzhou Chen,
| | - Shu Yan
- Tianjin Key Laboratory of Acute Abdomen Disease Associated Organ Injury and ITCWM Repair, ITCWM Hospital, Tianjin University, Tianjin, China
- *Correspondence: Shu Yan, ; Liren Liu, ; Yuzhou Chen,
| |
Collapse
|
11
|
Zheng Y, Niu F, Jiang P, Zhu X, Lin J, Wu X, Qin L, Liu Z, Fang S, Jin C, Yu X, Zuo L. 1039P Efficacy and safety of surufatinib (HMPL-012) as a third-line or further treatment for advanced non-small cell lung cancer (NSCLC). Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
|
12
|
Pappalardo A, Alvarez-Cespedes D, Fang S, Herschman A, Jeon E, Myers K, Kysar J, Abaci H. 769 Wearable human skin constructs with region-specific properties. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.05.782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|
13
|
Wu YH, Wu F, Yan GR, Zeng QY, Jia N, Zheng Z, Fang S, Liu YQ, Zhang GL, Wang XL. Features and clinical significance of tertiary lymphoid structure in cutaneous squamous cell carcinoma. J Eur Acad Dermatol Venereol 2022; 36:2043-2050. [PMID: 35881141 DOI: 10.1111/jdv.18464] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Accepted: 06/02/2022] [Indexed: 11/28/2022]
Abstract
BACKGROUND Tertiary lymphoid structure (TLS) plays an important role in anti-tumor immunity, largely reflecting the prognosis. However, its clinical implication in cutaneous squamous cell carcinoma (cSCC) remains unknown. OBJECTIVES To explore the features of TLS in cSCC and its association with clinicopathological characteristics. METHODS Two independent RNA-seq data of cSCC were used to investigate the tumor immune microenvironment, as well as TLS-related chemokines and cytokines. The density and location of TLSs were assessed in a total of 82 cSCC patients, and the clinicopathologic association was examined. RESULTS Bioinformatics analysis showed that a large amount of immune cell infiltration and significant up-regulation of TLS-related chemokines were observed in cSCC. Histologically, TLSs appeared as highly organized structures in 72 (87.8%) cases with different levels of density and maturation, among which 14 cases were in low-density group and 58 cases were in high-density group. Clinically, the presence of TLS was prominently associated with better degree of histopathological grades and higher level of sun exposure. Furthermore, the presence of intratumoral TLS was associated with lower lymphovascular invasion. CONCLUSIONS TLS is highly organized in cSCC, and the presence of TLS is a positive prognostic factor for cSCC, which will provide a theoretical basis for the future diagnostic and therapeutic value in cSCC.
Collapse
Affiliation(s)
- Y H Wu
- Institute of Photomedicine, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai, 200443, China
| | - F Wu
- Department of Pathology, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai, 200443, China
| | - G R Yan
- Institute of Photomedicine, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai, 200443, China
| | - Q Y Zeng
- Institute of Photomedicine, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai, 200443, China
| | - N Jia
- Institute of Photomedicine, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai, 200443, China
| | - Z Zheng
- Institute of Photomedicine, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai, 200443, China
| | - S Fang
- Institute of Photomedicine, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai, 200443, China
| | - Y Q Liu
- Department of Pathology, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai, 200443, China
| | - G L Zhang
- Institute of Photomedicine, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai, 200443, China
| | - X L Wang
- Institute of Photomedicine, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai, 200443, China
| |
Collapse
|
14
|
Fang S, Zheng R, Lei C, Wang J, Zhou R, Li M. In Silico Prediction of New Mutations That Can Improve the Binding Abilities Between 2019-nCoV Coronavirus and Human ACE2. IEEE/ACM Trans Comput Biol Bioinform 2022; 19:1694-1702. [PMID: 33560990 PMCID: PMC9328728 DOI: 10.1109/tcbb.2021.3058265] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 01/27/2021] [Accepted: 02/06/2021] [Indexed: 06/12/2023]
Abstract
The Coronavirus Disease 2019 (COVID-19) has become an international public health emergency, posing a serious threat to human health and safety around the world. The 2019-nCoV coronavirus spike protein was confirmed to be highly susceptible to various mutations, which can trigger apparent changes of virus transmission capacity and the pathogenic mechanism. In this article, the binding interface was obtained by analyzing the interaction modes between 2019-nCoV coronavirus and the human ACE2. Based on the "SIFT server" and the "bubble" identification mechanism, 9 amino acid sites were selected as potential mutation-sites from the 2019-nCoV-S1-ACE2 binding interface. Subsequently, a total number of 171 mutant systems for 9 mutation-sites were optimized for binding-pattern comparsion analysis, and 14 mutations that may improve the binding capacity of 2019-nCoV-S1 to ACE2 were selected. The Molecular Dynamic Simulations were conducted to calculate the binding free energies of all the 14 mutant systems. Finally, we found that most of the 14 mutations on the 2019-nCoV-S1 protein could enhance the binding ability between 2019-nCoV coronavirus and human ACE2. Among which, the binding capacities for G446R, Y449R and F486Y mutations could be increased by 20 percent, and that for S494R mutant increased even by 38.98 percent. We hope this research could provide significant help for the future epidemic detection, drug and vaccine development.
Collapse
Affiliation(s)
- Senbiao Fang
- Hunan Provincial Key Lab on BioinformaticsSchool of Computer Science and EngineeringCentral South UniversityChangsha410083China
| | - Ruoqian Zheng
- Hunan Provincial Key Lab on BioinformaticsSchool of Computer Science and EngineeringCentral South UniversityChangsha410083China
| | - Chuqi Lei
- Hunan Provincial Key Lab on BioinformaticsSchool of Computer Science and EngineeringCentral South UniversityChangsha410083China
| | - Jianxin Wang
- Hunan Provincial Key Lab on BioinformaticsSchool of Computer Science and EngineeringCentral South UniversityChangsha410083China
| | - Renyi Zhou
- Hunan Provincial Key Lab on BioinformaticsSchool of Computer Science and EngineeringCentral South UniversityChangsha410083China
| | - Min Li
- Hunan Provincial Key Lab on BioinformaticsSchool of Computer Science and EngineeringCentral South UniversityChangsha410083China
| |
Collapse
|
15
|
Pan B, Xia Y, Gao Z, Zhao G, Wang L, Fang S, Liu L, Yan S. Cinnamomi Ramulus inhibits the growth of colon cancer cells via Akt/ERK signaling pathways. Chin Med 2022; 17:36. [PMID: 35264225 PMCID: PMC8905814 DOI: 10.1186/s13020-022-00588-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 02/26/2022] [Indexed: 12/24/2022] Open
Abstract
Background Colon cancer (CC) ranks the second highest mortality rate among malignant tumors worldwide, and the current mainstream treatment regimens are not very effective. The unique efficacy of Chinese herb medicine (CHM) for cancer has recently attracted increasing attention. Cinnamomi Ramulus (CR), as a classic CHM, has been widely used in the treatment of a variety of diseases for hundreds of years in China, but its specific pharmacological mechanism against CC needs to be fully evaluated. Methods TCMSP and China National Knowledge Infrastructure database were utilized to predict the candidate ingredients of CR, and TCMSP and SwissTargetPrediction database were also employed to predict the drug targets of the candidate ingredients from CR. We subsequently evaluated the therapeutic effect of CR by orally administrating it on CC-bearing mice. Next, we further identified the potential CC-related targets by using Gene Expression Omnibus (GEO) database. Based on these obtained targets, the drug/disease-target PPI networks were constructed using Bisogenet plugin of Cytoscape. The potential core therapeutic targets were then identified through topological analysis using CytoNCA plugin. GO and KEGG enrichment analyses were performed to predict the underlying mechanism of CR against CC. Furthermore, these in silico analysis results were validated by a series of cellular functional and molecular biological assays. UPLC–MS/MS method and molecular docking analysis were employed to identify the potential key components from CR. Results In this study, we firstly found that CR has potential therapeutic effect on cancer. Then, oral administration of CR could inhibit the growth of CC cells in C57BL/6 mice, while inhibiting the viability and motility of CC cells in vitro. We obtained 111 putative core therapeutic targets of CR. Subsequent enrichment analysis on these targets showed that CR could induce apoptosis and cell cycle arrest in CC cells by blocking Akt/ERK signaling pathways, which was further experimentally verified. We identified 5 key components from the crude extract of CR, among which taxifolin was found most likely to be the key active component against CC. Conclusions Our results show that CR as well as its active component taxifolin holds great potential in treatment of CC. Supplementary Information The online version contains supplementary material available at 10.1186/s13020-022-00588-6.
Collapse
Affiliation(s)
- Boyu Pan
- Tianjin Key Laboratory of Acute Abdomen Disease Associated Organ Injury and ITCWM Repair, ITCWM Hospital, Tianjin University, No.92 Weijin Road, Nankai District, Tianjin, 300072, China.,Department of Gastrointestinal Cancer Biology, Tianjin Medical University Cancer Institute & Hospital, Key Laboratory of Cancer Prevention and Therapy, Tianjin; Tianjin's Clinical Research Center for Cancer, National Clinical Research Center for Cancer, Huanhuxi Road, Hexi District, Tianjin, 300060, China
| | - Yafei Xia
- Tianjin Key Laboratory of Acute Abdomen Disease Associated Organ Injury and ITCWM Repair, ITCWM Hospital, Tianjin University, No.92 Weijin Road, Nankai District, Tianjin, 300072, China
| | - Zilu Gao
- Department of Maxillofacial and Otorhinolaryngological Oncology, Tianjin Medical University Cancer Institute & Hospital, Key Laboratory of Cancer Prevention and Therapy, Tianjin; Tianjin's Clinical Research Center for Cancer, National Clinical Research Center for Cancer, Tianjin, 300060, China
| | - Gang Zhao
- Department of Gastrointestinal Cancer Biology, Tianjin Medical University Cancer Institute & Hospital, Key Laboratory of Cancer Prevention and Therapy, Tianjin; Tianjin's Clinical Research Center for Cancer, National Clinical Research Center for Cancer, Huanhuxi Road, Hexi District, Tianjin, 300060, China
| | - Liangjiao Wang
- Department of Gastrointestinal Cancer Biology, Tianjin Medical University Cancer Institute & Hospital, Key Laboratory of Cancer Prevention and Therapy, Tianjin; Tianjin's Clinical Research Center for Cancer, National Clinical Research Center for Cancer, Huanhuxi Road, Hexi District, Tianjin, 300060, China
| | - Senbiao Fang
- School of Information Science and Engineering, Central South University, Yuelu District, Changsha, 410006, Hunan, China.
| | - Liren Liu
- Department of Gastrointestinal Cancer Biology, Tianjin Medical University Cancer Institute & Hospital, Key Laboratory of Cancer Prevention and Therapy, Tianjin; Tianjin's Clinical Research Center for Cancer, National Clinical Research Center for Cancer, Huanhuxi Road, Hexi District, Tianjin, 300060, China.
| | - Shu Yan
- Tianjin Key Laboratory of Acute Abdomen Disease Associated Organ Injury and ITCWM Repair, ITCWM Hospital, Tianjin University, No.92 Weijin Road, Nankai District, Tianjin, 300072, China.
| |
Collapse
|
16
|
Hao S, Fang H, Fang S, Zhang T, Zhang L, Yang L. Changes in nuclear factor kappa B components expression in the ovine spleen during early pregnancy. J Anim Feed Sci 2022. [DOI: 10.22358/jafs/146491/2022] [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] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
17
|
Zhong J, Fang S, Gao M, Lu L, Zhang X, Zhu Q, Liu Y, Jurat-Fuentes JL, Liu X. Evidence of a shared binding site for Bacillus thuringiensis Cry1Ac and Cry2Aa toxins in Cnaphalocrocis medinalis cadherin. Insect Mol Biol 2022; 31:101-114. [PMID: 34637177 DOI: 10.1111/imb.12741] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 08/26/2021] [Accepted: 10/07/2021] [Indexed: 06/13/2023]
Abstract
Insect midgut cadherins function as receptors and play critical roles as protein receptors of insecticidal Bacillus thuringiensis (Bt) toxins used as biopesticides and in Bt transgenic crops worldwide. Here, we cloned and characterized the full-length midgut cadherin (CmCad) cDNA from the rice leaffolder (Cnaphalocrocis medinalis), a destructive pest of rice in many Asian countries. Expression of recombinant proteins corresponding to the extracellular domain of CmCad allowed testing binding of Cry proteins. Results from in vitro ligand blotting and enzyme-linked immunosorbent assays supported that the extracellular domain of CmCad contains regions recognized by both Cry1Ac and Cry2Aa. Molecular modelling and docking simulations indicated that binding to both Cry1Ac and Cry2Aa is localized primarily within a CmCad motif corresponding to residues T1417-D1435. A recombinant CmCad protein produced without residues T1417-D1435 lacked binding to Cry1Ac and Cry2Aa, confirmed our modelling predictions that CmCad has a shared Cry1Ac and Cry2Aa binding site. The potential existence of a shared binding region in CmCad suggests that caution should be taken when using combinations of Cry1Ac and Cry2Aa in pyramided transgenic rice, as their combined use could speed the evolution of resistance to both toxins.
Collapse
Affiliation(s)
- J Zhong
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Ministry of Science and Technology/Key Laboratory for Control Technology and Standard for Agro-product Safety and Quality, Ministry of Agriculture and Rural Affairs/Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - S Fang
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Ministry of Science and Technology/Key Laboratory for Control Technology and Standard for Agro-product Safety and Quality, Ministry of Agriculture and Rural Affairs/Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - M Gao
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Ministry of Science and Technology/Key Laboratory for Control Technology and Standard for Agro-product Safety and Quality, Ministry of Agriculture and Rural Affairs/Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - L Lu
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Ministry of Science and Technology/Key Laboratory for Control Technology and Standard for Agro-product Safety and Quality, Ministry of Agriculture and Rural Affairs/Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - X Zhang
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Ministry of Science and Technology/Key Laboratory for Control Technology and Standard for Agro-product Safety and Quality, Ministry of Agriculture and Rural Affairs/Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - Q Zhu
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Ministry of Science and Technology/Key Laboratory for Control Technology and Standard for Agro-product Safety and Quality, Ministry of Agriculture and Rural Affairs/Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - Y Liu
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Ministry of Science and Technology/Key Laboratory for Control Technology and Standard for Agro-product Safety and Quality, Ministry of Agriculture and Rural Affairs/Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - J L Jurat-Fuentes
- Department of Entomology and Plant Pathology, University of Tennessee, Knoxville, TN, USA
| | - X Liu
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Ministry of Science and Technology/Key Laboratory for Control Technology and Standard for Agro-product Safety and Quality, Ministry of Agriculture and Rural Affairs/Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| |
Collapse
|
18
|
Pan B, Huang C, Xia Y, Zhang C, Li B, Wang L, Fang S, Liu L, Yan S. COL1A1 is a potential prognostic marker and therapeutic target in non-small cell lung cancer. Curr Bioinform 2022. [DOI: 10.2174/1574893617666220114141705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
Nowadays, non-small cell lung cancer (NSCLC) is a common and highly fatal malignancy in worldwide. Therefore, to identify the potential prognostic markers and therapeutic targets is urgent for patients.
Objective:
This study aims to find hub targets associated with NSCLC using multiple databases.
Methods:
Differentially expressed genes (DEGs) from Genome Expression Omnibus (GEO) cohorts were employed for the enrichment analyses of Gene Ontology (GO) terms and the Kyoto Encyclopedia of Genes and Genome (KEGG) pathways. Candidate key genes, filtered from the topological parameter 'Degree' and validated using the The Cancer Genome Atlas (TCGA) cohort, were analyzed for their association with clinicopathological features and prognosis of NSCLC. Meanwhile, immunohistochemical cohort analyses and biological verification were further evaluated.
Results:
A total of 146 DEGs were identified following data preprocessing, and a protein-protein interaction (PPI) systematic network was constructed based on them. The top ten candidate core genes were further extracted from the above PPI network by using 'Degree' value, among which COL1A1 was shown to associate with overall survival (OS) of NSCLC as determined by using the Kaplan-Meier analysis (p=0.028), and could serve as an independent prognostic factor for OS in NSCLC patients (HR, 0.814; 95% CI, 0.665-0.996; p=0.046). We then analyzed the clinical stages, PPI, mutations, potential biological functions and immune regulations of COL1A1 in NSCLC patients using multiple bioinformatics tools, including GEPIA, GeneMANIA, cBioPortal, GESA and TISIDB. Finally, we further experimentally validated the overexpression of COL1A1 in NSCLC samples, and found that inhibition of COL1A1 expression moderately sensitized NSCLC cells to cisplatin.
Conclusion:
Thus, our results show that COL1A1 may serve as a potential prognostic marker and therapeutic target in NSCLC.
Collapse
Affiliation(s)
- Boyu Pan
- Tianjin key Laboratory of Acute abdomen disease associated organ injury and ITCWM Repair, ITCWM Hospital, Tianjin University
- Department of Gastrointestinal Cancer Biology, Tianjin Medical University Cancer Institute & Hospital; National Clinical Research Center for Cancer; Key Laboratory of Cancer Prevention and Therapy, Tianjin; Tianjin\'s Clinical Research Center for Cancer, Tianjin 300060, China
| | - Chen Huang
- Department of Gastrointestinal Cancer Biology, Tianjin Medical University Cancer Institute & Hospital; National Clinical Research Center for Cancer; Key Laboratory of Cancer Prevention and Therapy, Tianjin; Tianjin\'s Clinical Research Center for Cancer, Tianjin 300060, China
| | - Yafei Xia
- Department of Thoracic Oncology, Tianjin Lung Cancer Center, Tianjin Medical University Cancer Institute & Hospital; National Clinical Research Center for Cancer; Key Laboratory of Cancer Prevention and Therapy, Tianjin; Tianjin\'s Clinical Research Center for Cancer, Tianjin 300060, China
| | - Cuicui Zhang
- Tianjin key Laboratory of Acute abdomen disease associated organ injury and ITCWM Repair, ITCWM Hospital, Tianjin University
| | - Bole Li
- Department of Thoracic Oncology, Tianjin Lung Cancer Center, Tianjin Medical University Cancer Institute & Hospital; National Clinical Research Center for Cancer; Key Laboratory of Cancer Prevention and Therapy, Tianjin; Tianjin\'s Clinical Research Center for Cancer, Tianjin 300060, China
| | - Liangjiao Wang
- Department of pharmacy, Tianjin Medical University Cancer Institute & Hospital; National Clinical Research Center for Cancer; Key Laboratory of Cancer Prevention and Therapy, Tianjin; Tianjin\'s Clinical Research Center for Cancer, Tianjin 300060, China
| | - Senbiao Fang
- Department of Gastrointestinal Cancer Biology, Tianjin Medical University Cancer Institute & Hospital; National Clinical Research Center for Cancer; Key Laboratory of Cancer Prevention and Therapy, Tianjin; Tianjin\'s Clinical Research Center for Cancer, Tianjin 300060, China
| | - Liren Liu
- School of Information Science and Engineering, Central South University
| | - Shu Yan
- Tianjin key Laboratory of Acute abdomen disease associated organ injury and ITCWM Repair, ITCWM Hospital, Tianjin University
| |
Collapse
|
19
|
Zhong Z, Fang S, Li Y, Huang Y, Zhang Y, Chen H, Zhang J, Wang HX, Xiong H, Zou Q, Wang S. Quantitative Analysis of Protein Corona on Precoated Protein Nanoparticles and Determined Nanoparticles with Ultralow Protein Corona and Efficient Targeting in Vivo. ACS Appl Mater Interfaces 2021; 13:56812-56824. [PMID: 34817983 DOI: 10.1021/acsami.1c12008] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The protein corona on nanoparticles (NPs) is a critical problem that often screens the targeting molecules and becomes one of the key reasons for the lack of practical application in nanotherapy. It is critical to fully understand the mechanism of the nanoparticle-biological interactions to design the nanoparticle-based therapeutic agents. Some types of proteins can be precoated on the nanoparticles to avoid unwanted protein attachment; however, the ultralow level of protein corona is hard to achieve, and the relationship of the antifouling property of the precoated protein nanoparticles with protein conformation and protein-nanoparticle interaction energy has never been investigated. In this work, we provided the quantitative protein corona composition analysis on different precoated protein nanoparticles, and on the basis of the molecular simulation process, we found their antifouling property strongly depended on the interaction energy of the precoated protein-serum protein pair and the number of hydrogen bonds formed between them. Furthermore, it also depended on the nanoparticle-serum protein pair interaction energy and the protein conformation on the nanoparticle. The casein coated nanoparticle with the antifouling property was determined, and after aptamer conjugation and drug loading, they exhibited superior targeting and internalization behavior for photodynamic and photothermal therapy in vitro and in vivo. Our work adds to the understanding of the protein corona behavior of precoated protein nanoparticles, and the determined antifouling NP can potentially be used as a highly efficient nanodrug carrier.
Collapse
Affiliation(s)
- Zicheng Zhong
- Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Hubei Collaborative Innovation Centre for Advanced Organic Chemical Materials, College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, China
| | - Senbiao Fang
- School of Computer Science and Engineering, Central South University, Changsha 410012, China
| | - Yan Li
- Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Hubei Collaborative Innovation Centre for Advanced Organic Chemical Materials, College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, China
| | - Yuan Huang
- Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Hubei Collaborative Innovation Centre for Advanced Organic Chemical Materials, College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, China
| | - Yue Zhang
- Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Hubei Collaborative Innovation Centre for Advanced Organic Chemical Materials, College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, China
| | - Hao Chen
- Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Hubei Collaborative Innovation Centre for Advanced Organic Chemical Materials, College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, China
| | - Jinzhi Zhang
- Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Hubei Collaborative Innovation Centre for Advanced Organic Chemical Materials, College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, China
| | - Hang-Xing Wang
- Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Hubei Collaborative Innovation Centre for Advanced Organic Chemical Materials, College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, China
| | - Huayu Xiong
- Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Hubei Collaborative Innovation Centre for Advanced Organic Chemical Materials, College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, China
| | - Qichao Zou
- Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Hubei Collaborative Innovation Centre for Advanced Organic Chemical Materials, College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, China
| | - Suxiao Wang
- Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Hubei Collaborative Innovation Centre for Advanced Organic Chemical Materials, College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, China
| |
Collapse
|
20
|
Abstract
This case report describes 26-year-old woman who had multiple clusters of pale-pink lichenoid papules since childhood and the accompanying itching was intense. Skin biopsy revealed obvious fissures had formed under the epidermis. The patient was diagnosed with epidermolysis bullosa pruriginosa and was successfully treated with tofacitinib.
Collapse
Affiliation(s)
- K-J Chen
- Department of Dermatology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - S Fang
- Department of Dermatology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Q Ye
- Department of Dermatology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - M Jia
- Department of Dermatology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| |
Collapse
|
21
|
Peng X, Fang S, Ji B, Li M, Song J, Qiu L, Tan W. DNA Nanostructure-Programmed Cell Entry via Corner Angle-Mediated Molecular Interaction with Membrane Receptors. Nano Lett 2021; 21:6946-6951. [PMID: 34396773 DOI: 10.1021/acs.nanolett.1c02191] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Despite its polyanionic nature, DNA can cross the negatively charged membrane to enter living cells by assembling into specific nanostructures, establishing various opportunities for biomedical applications. Mechanistic studies to explain how the geometrical parameters of DNA nanostructures impact the cell entry are critical but elusive. Here, we use experimentation and simulation to study the interaction between cells and three typical framework nucleic acids (FNAs), including tetrahedron, triangular prism, and cube. Different cellular uptake efficiency was observed among these FNAs, and similar distinction consistently existed in multiple cell lines. Scavenger receptors (SRs) were demonstrated to be essential in mediating the uptake process. Molecular docking simulations revealed that the SR binding predominantly depended on the corner angle of FNAs, determining cellular internalization frequency. This study clearly explains how FNAs interact with the membrane to initiate cell entry, offering new clues for the design of theranostic nanocarriers and the study of virus invasion.
Collapse
Affiliation(s)
- Xueyu Peng
- Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Aptamer Engineering Center of Hunan Province, Hunan University, Changsha, Hunan 410082, China
| | - Senbiao Fang
- School of Computer Science and Engineering, Central South University, Changsha, Hunan 410083, China
| | - Bin Ji
- The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, Zhejiang 310022, China
- Institute of Molecular Medicine (IMM), Renji Hospital, School of Medicine and College of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Min Li
- School of Computer Science and Engineering, Central South University, Changsha, Hunan 410083, China
| | - Jie Song
- The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, Zhejiang 310022, China
- Institute of Molecular Medicine (IMM), Renji Hospital, School of Medicine and College of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Liping Qiu
- Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Aptamer Engineering Center of Hunan Province, Hunan University, Changsha, Hunan 410082, China
| | - Weihong Tan
- Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Aptamer Engineering Center of Hunan Province, Hunan University, Changsha, Hunan 410082, China
- The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, Zhejiang 310022, China
- Institute of Molecular Medicine (IMM), Renji Hospital, School of Medicine and College of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| |
Collapse
|
22
|
Anisimov A, Fang S, Hemanthakumar K, Nguyen S, Korhonen E, Augustin H, Öörni K, Alitalo K. The angiopoietin receptor Tie2 in arterial endothelium inhibits atherosclerosis. Atherosclerosis 2021. [DOI: 10.1016/j.atherosclerosis.2021.06.177] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
23
|
Hong X, Zhao J, Zhu X, Dai Q, Zhang H, Xuan Y, Yin J, Zhang Y, Yang X, Fang S, Wang Q, Shen H, Zhang Y, Yan D, Wang Y, Peng Z, Zhang Y, Wang B, Ma X. The association between the vaginal microenvironment and fecundability: a register-based cohort study among Chinese women. BJOG 2021; 129:43-51. [PMID: 34258836 DOI: 10.1111/1471-0528.16843] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 05/18/2021] [Accepted: 05/27/2021] [Indexed: 12/13/2022]
Abstract
OBJECTIVE To evaluate the association between the vaginal microenvironment and fecundability among women. DESIGN Register-based nationwide cohort study. SETTING Chinese National Free Pre-conception Check-up Project from 2015 to 2018. POPULATION Our study included a total of 3 388 554 eligible women who were attempting to become pregnant. METHOD We assessed the vaginal microenvironment at baseline by considering four indices: vaginal pH, clue cell examination, whiff test and vaginal cleanliness grading. If any of these indicators was abnormal, the vaginal microenvironment was defined as poor. Propensity score matching was used to control for potential confounders and reduce bias. Logistic models were used to estimate the fecundability odds ratios (FORs) after adjustment for covariates. MAIN OUTCOME MEASURES Achievement of a pregnancy within 1 year. RESULTS Of the total study population, 379 718 women (11.2%) had a poor vaginal microenvironment and their pregnancy rate after 1 year was significantly lower than the group with a normal microenvironment (71.8% versus 76.1%, P < 0.001). After adjusting for potential confounders, the women with a poor vaginal microenvironment were associated with a 9% reduction in fecundability compared with the normal microenvironment group (FOR 0.91, 95% CI 0.90-0.92). The adverse effects of a poor vaginal microenvironment were stronger among multipara (FOR 0.89, 95% CI 0.87-0.90) or women with irregular menstruation (FOR 0.86, 95% CI 0.84-0.89). CONCLUSION There was a negative association between a poor vaginal microenvironment and the fecundability of women. These findings highlight the significance of assessing the vaginal microenvironment during pre-pregnancy health examinations. TWEETABLE ABSTRACT Women with a poor vaginal microenvironment were associated with a reduction in fecundability.
Collapse
Affiliation(s)
- X Hong
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, Department of Epidemiology and Health Statistics, School of Public Health, Southeast University, Nanjing, Jiangsu, China
| | - J Zhao
- National Research Institute for Family Planning, Beijing, China.,National Human Genetic Resources Centre, Beijing, China
| | - X Zhu
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, Department of Epidemiology and Health Statistics, School of Public Health, Southeast University, Nanjing, Jiangsu, China
| | - Q Dai
- National Research Institute for Family Planning, Beijing, China.,National Human Genetic Resources Centre, Beijing, China
| | - H Zhang
- National Research Institute for Family Planning, Beijing, China.,National Human Genetic Resources Centre, Beijing, China
| | - Y Xuan
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, Department of Epidemiology and Health Statistics, School of Public Health, Southeast University, Nanjing, Jiangsu, China
| | - J Yin
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, Department of Epidemiology and Health Statistics, School of Public Health, Southeast University, Nanjing, Jiangsu, China
| | - Yue Zhang
- National Research Institute for Family Planning, Beijing, China.,National Human Genetic Resources Centre, Beijing, China
| | - X Yang
- National Research Institute for Family Planning, Beijing, China.,National Human Genetic Resources Centre, Beijing, China
| | - S Fang
- The Mount Sinai Health System, New York, NY, USA
| | - Q Wang
- Department of Maternal and Child Health, National Health Commission of the People's Republic of China, Beijing, China
| | - H Shen
- Department of Maternal and Child Health, National Health Commission of the People's Republic of China, Beijing, China
| | - Yiping Zhang
- Department of Maternal and Child Health, National Health Commission of the People's Republic of China, Beijing, China
| | - D Yan
- Department of Maternal and Child Health, National Health Commission of the People's Republic of China, Beijing, China
| | - Y Wang
- National Research Institute for Family Planning, Beijing, China.,National Human Genetic Resources Centre, Beijing, China
| | - Z Peng
- National Research Institute for Family Planning, Beijing, China.,National Human Genetic Resources Centre, Beijing, China
| | - Ya Zhang
- National Research Institute for Family Planning, Beijing, China.,National Human Genetic Resources Centre, Beijing, China
| | - B Wang
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, Department of Epidemiology and Health Statistics, School of Public Health, Southeast University, Nanjing, Jiangsu, China
| | - X Ma
- National Research Institute for Family Planning, Beijing, China.,National Human Genetic Resources Centre, Beijing, China
| |
Collapse
|
24
|
Horwitz SM, Moskowitz AJ, Mehta‐Shah N, Jacobsen ED, Khodadoust MS, Ganesan N, Drill E, Hancock H, Davey T, Myskowski P, Maccaro C, Blouin W, Schwieterman J, Cathcart E, Fang S, Perez L, Ryu S, Galasso N, Straus D, Fisher DC, Kumar A, Noy A, Falchi L, Dogan A, Kim YH, Weinstock D. THE COMBINATION OF DUVELISIB AND ROMIDEPSIN (DR) IS HIGHLY ACTIVE AGAINST RELAPSED/REFRACTORY PERIPHERAL T‐CELL LYMPHOMA WITH LOW RATES OF TRANSAMINITIS: FINAL RESULTS. Hematol Oncol 2021. [DOI: 10.1002/hon.56_2879] [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: 11/08/2022]
Affiliation(s)
- S. M. Horwitz
- Memorial Sloan Kettering Cancer Center Medicine/Lymphoma, New York New York USA
| | - A. J. Moskowitz
- Memorial Sloan Kettering Cancer Center Medicine/Lymphoma, New York New York USA
| | | | - E. D. Jacobsen
- Dana Farber Cancer Institute Medical Oncology/Hematologic Neoplasia Boston USA
| | - M. S. Khodadoust
- Stanford University Medical Center Medicine (Oncology) and Dermatology Stanford USA
| | - N. Ganesan
- Memorial Sloan Kettering Cancer Center Medicine/Lymphoma, New York New York USA
| | - E. Drill
- Memorial Sloan Kettering Cancer Center Epidemiology‐Biostatistics New York USA
| | - H. Hancock
- Memorial Sloan Kettering Cancer Center Medicine/Lymphoma, New York New York USA
| | - T. Davey
- Memorial Sloan Kettering Cancer Center Medicine/Lymphoma, New York New York USA
| | - P. Myskowski
- Memorial Sloan Kettering Cancer Center Medicine/Dermatology New York USA
| | - C. Maccaro
- Memorial Sloan Kettering Cancer Center Medicine/Lymphoma, New York New York USA
| | - W. Blouin
- Memorial Sloan Kettering Cancer Center Medicine/Lymphoma, New York New York USA
| | | | - E. Cathcart
- Memorial Sloan Kettering Cancer Center Medicine/Lymphoma, New York New York USA
| | - S. Fang
- S tanford University School of Medicine and Stanford Cancer Institute Medicine (Oncology) and Dermatology Stanford USA
| | - L. Perez
- Memorial Sloan Kettering Cancer Center Medicine/Lymphoma, New York New York USA
| | - S. Ryu
- Memorial Sloan Kettering Cancer Center Medicine/Lymphoma, New York New York USA
| | - N. Galasso
- Memorial Sloan Kettering Cancer Center Medicine/Lymphoma, New York New York USA
| | - D. Straus
- Memorial Sloan Kettering Cancer Center Medicine/Lymphoma, New York New York USA
| | - D. C. Fisher
- Dana Farber Cancer Institute Medical Oncology/Hematologic Neoplasia Boston USA
| | - A. Kumar
- Memorial Sloan Kettering Cancer Center Medicine/Lymphoma, New York New York USA
| | - A. Noy
- Memorial Sloan Kettering Cancer Center Medicine/Lymphoma, New York New York USA
| | - L. Falchi
- Memorial Sloan Kettering Cancer Center Medicine/Lymphoma, New York New York USA
| | - A. Dogan
- Memorial Sloan Kettering Cancer Center, Pathology New York USA
| | - Y. H. Kim
- S tanford University School of Medicine and Stanford Cancer Institute Medicine (Oncology) and Dermatology Stanford USA
| | - D. Weinstock
- Dana Farber Cancer Institute Medical Oncology/Hematologic Neoplasia Boston USA
| |
Collapse
|
25
|
Zhao X, Chen L, Ren Q, Wu Z, Fang S, Jiang Y, Chen Y, Zhong Y, Wang D, Wu J, Zhang G. Potential Applications in Sewage Bioremediation of the Highly Efficient Pyridine-Transforming Paenochrobactrum sp. APPL BIOCHEM MICRO+ 2021. [DOI: 10.1134/s0003683821030145] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
|
26
|
Chen H, Liu Y, Cheng X, Fang S, Sun Y, Yang Z, Zheng W, Ji X, Wu Z. Self‐Assembly of Size‐Controlled
m
‐Pyridine–Urea Oligomers and Their Biomimetic Chloride Ion Channels. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202102174] [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: 11/05/2022]
Affiliation(s)
- Hualong Chen
- Beijing Institute of Brain Disorders Laboratory of Brain Disorders Ministry of Science and Technology Collaborative Innovation Center for Brain Disorders Beijing Advanced Innovation Center for Big Data-based Precision Medicine Capital Medical University Beijing 100069 China
| | - Yajing Liu
- School of Pharmaceutical Science Capital Medical University Beijing 100069 China
| | - Xuebo Cheng
- Beijing Institute of Brain Disorders Laboratory of Brain Disorders Ministry of Science and Technology Collaborative Innovation Center for Brain Disorders Beijing Advanced Innovation Center for Big Data-based Precision Medicine Capital Medical University Beijing 100069 China
| | - Senbiao Fang
- School of Computer Science and Engineering Central South University Changsha 410012 China
| | - Yuli Sun
- Beijing Institute of Brain Disorders Laboratory of Brain Disorders Ministry of Science and Technology Collaborative Innovation Center for Brain Disorders Beijing Advanced Innovation Center for Big Data-based Precision Medicine Capital Medical University Beijing 100069 China
| | - Zequn Yang
- Beijing Institute of Brain Disorders Laboratory of Brain Disorders Ministry of Science and Technology Collaborative Innovation Center for Brain Disorders Beijing Advanced Innovation Center for Big Data-based Precision Medicine Capital Medical University Beijing 100069 China
| | - Wei Zheng
- Beijing Institute of Brain Disorders Laboratory of Brain Disorders Ministry of Science and Technology Collaborative Innovation Center for Brain Disorders Beijing Advanced Innovation Center for Big Data-based Precision Medicine Capital Medical University Beijing 100069 China
| | - Xunming Ji
- Beijing Institute of Brain Disorders Laboratory of Brain Disorders Ministry of Science and Technology Collaborative Innovation Center for Brain Disorders Beijing Advanced Innovation Center for Big Data-based Precision Medicine Capital Medical University Beijing 100069 China
- Institute of Hypoxia Medicine Xuanwu Hospital Capital Medical University Beijing 100053 China
| | - Zehui Wu
- Beijing Institute of Brain Disorders Laboratory of Brain Disorders Ministry of Science and Technology Collaborative Innovation Center for Brain Disorders Beijing Advanced Innovation Center for Big Data-based Precision Medicine Capital Medical University Beijing 100069 China
| |
Collapse
|
27
|
Huang C, Lei C, Pan B, Fang S, Chen Y, Cao W, Liu L. Potential Prospective Biomarkers for Non-small Cell Lung Cancer: Mini-Chromosome Maintenance Proteins. Front Genet 2021; 12:587017. [PMID: 33936158 PMCID: PMC8079985 DOI: 10.3389/fgene.2021.587017] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Accepted: 03/18/2021] [Indexed: 11/13/2022] Open
Abstract
Minichromosome maintenance proteins (MCMs) are considered to be essential factors coupling DNA replication to both cell cycle progression and checkpoint regulation. Previous studies have shown that dysregulation of MCMs are implicated in tumorigenesis of lung cancer. However, the distinct expression/mutation patterns and prognostic values of MCMs in lung cancer have yet to be systematically elucidated. In the present study, we analyzed the transcriptional levels, mutations, and prognostic value of MCM1-10 in non-small cell lung cancer (NSCLC) patients using multiple bioinformatics tools, including ONCOMINE, GEPIA, Kaplan-Meier Plotter, cBioPortal, and GESA. The analysis results from GEPIA dataset showed that MCM2/4/10 was significantly high expressed in both lung adenocarcinoma (LUAD) and squamous cell lung carcinomas (LUSCs). Meanwhile, the expression levels of MCM2/4/6/7/8 were associated with advanced tumor stages. Subsequent survival analysis using the Kaplan-Meier Plotter indicated that high expression levels of MCM1/2/3/4/5/6/7/8/10 were associated with worse overall survival (OS), while high expression level of MCM9 predicted better OS in these patients. Furthermore, we experimentally validated overexpression of MCM2 and MCM4 in NSCLC, thus the results from this study support a view that they may serve as potential prospective biomarkers to identify high-risk subgroups of NSCLC patients.
Collapse
Affiliation(s)
- Chen Huang
- Department of Gastrointestinal Cancer Biology, Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy-Tianjin, Tianjin's Clinical Research Center for Cancer, Tianjin, China
| | - Chuqi Lei
- Hunan Provincial Key Lab on Bioinformatics, School of Computer Science and Engineering, Central South University, Changsha, China
| | - Boyu Pan
- Department of Gastrointestinal Cancer Biology, Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy-Tianjin, Tianjin's Clinical Research Center for Cancer, Tianjin, China
| | - Senbiao Fang
- Hunan Provincial Key Lab on Bioinformatics, School of Computer Science and Engineering, Central South University, Changsha, China
| | - Yubao Chen
- Department of Computational Biology, Beijing Computing Center, Beijing, China
| | - Wenfeng Cao
- Department of Pathology, Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy-Tianjin, Tianjin's Clinical Research Center for Cancer, Tianjin, China
| | - Liren Liu
- Department of Gastrointestinal Cancer Biology, Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy-Tianjin, Tianjin's Clinical Research Center for Cancer, Tianjin, China
| |
Collapse
|
28
|
Chen H, Liu Y, Cheng X, Fang S, Sun Y, Yang Z, Zheng W, Ji X, Wu Z. Self-Assembly of Size-Controlled m-Pyridine-Urea Oligomers and Their Biomimetic Chloride Ion Channels. Angew Chem Int Ed Engl 2021; 60:10833-10841. [PMID: 33624345 DOI: 10.1002/anie.202102174] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Indexed: 01/06/2023]
Abstract
The m-pyridine urea (mPU) oligomer was constructed by using the intramolecular hydrogen bond formed by the pyridine nitrogen atom and the NH of urea and the intermolecular hydrogen bond of the terminal carbonyl group and the NH of urea. Due to the synergistic effect of hydrogen bonds, mPU oligomer folds and exhibits strong self-assembly behaviour. Affected by folding, mPU oligomer generates a twisted plane, and one of its important features is that the carbonyl group of the urea group orientates outwards from the twisted plane, while the NHs tend to direct inward. This feature is beneficial to NH attraction for electron-rich species. Among them, the trimer self-assembles into helical nanotubes, and can efficiently transport chloride ions. This study provides a novel and efficient strategy for constructing self-assembled biomimetic materials for electron-rich species transmission.
Collapse
Affiliation(s)
- Hualong Chen
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain Disorders, Beijing Advanced Innovation Center for Big Data-based Precision Medicine, Capital Medical University, Beijing, 100069, China
| | - Yajing Liu
- School of Pharmaceutical Science, Capital Medical University, Beijing, 100069, China
| | - Xuebo Cheng
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain Disorders, Beijing Advanced Innovation Center for Big Data-based Precision Medicine, Capital Medical University, Beijing, 100069, China
| | - Senbiao Fang
- School of Computer Science and Engineering, Central South University, Changsha, 410012, China
| | - Yuli Sun
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain Disorders, Beijing Advanced Innovation Center for Big Data-based Precision Medicine, Capital Medical University, Beijing, 100069, China
| | - Zequn Yang
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain Disorders, Beijing Advanced Innovation Center for Big Data-based Precision Medicine, Capital Medical University, Beijing, 100069, China
| | - Wei Zheng
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain Disorders, Beijing Advanced Innovation Center for Big Data-based Precision Medicine, Capital Medical University, Beijing, 100069, China
| | - Xunming Ji
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain Disorders, Beijing Advanced Innovation Center for Big Data-based Precision Medicine, Capital Medical University, Beijing, 100069, China.,Institute of Hypoxia Medicine, Xuanwu Hospital, Capital Medical University, Beijing, 100053, China
| | - Zehui Wu
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain Disorders, Beijing Advanced Innovation Center for Big Data-based Precision Medicine, Capital Medical University, Beijing, 100069, China
| |
Collapse
|
29
|
Fang S, Zheng R, Lei C, Wang J, Zheng R, Li M. Key residues influencing binding affinities of 2019-nCoV with ACE2 in different species. Brief Bioinform 2021; 22:963-975. [PMID: 33285566 PMCID: PMC7799256 DOI: 10.1093/bib/bbaa329] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 09/29/2020] [Accepted: 10/23/2020] [Indexed: 12/19/2022] Open
Abstract
The Novel Coronavirus Disease 2019 (COVID-19) has become an international public health emergency, which poses the most serious threat to the human health around the world. Accumulating evidences have shown that the new coronavirus could not only infect human beings, but also can infect other species which might result in the cross-species infections. In this research, 1056 ACE2 protein sequences are collected from the NCBI database, and 173 species with >60% sequence identity compared with that of human beings are selected for further analysis. We find 14 polar residues forming the binding interface of ACE2/2019-nCoV-Spike complex play an important role in maintaining protein-protein stability. Among them, 8 polar residues at the same positions with that of human ACE2 are highly conserved, which ensure its basic binding affinity with the novel coronavirus. 5 of other 6 unconserved polar residues (positions at human ACE2: Q24, D30, K31, H34 and E35) are proved to have an effect on the binding patterns among species. We select 21 species keeping close contacts with human beings, construct their ACE2 three-dimensional structures by Homology Modeling method and calculate the binding free energies of their ACE2/2019-nCoV-Spike complexes. We find the ACE2 from all the 21 species possess the capabilities to bind with the novel coronavirus. Compared with the human beings, 8 species (cow, deer, cynomys, chimpanzee, monkey, sheep, dolphin and whale) present almost the same binding abilities, and 3 species (bat, pig and dog) show significant improvements in binding affinities. We hope this research could provide significant help for the future epidemic detection, drug and vaccine development and even the global eco-system protections.
Collapse
Affiliation(s)
| | | | | | | | | | - Min Li
- Central South University, Changsha, China
| |
Collapse
|
30
|
Francis M, Balwani M, Balistreri W, D’Antiga L, Fang S, Jones S, Ros E, Abel F, Wilson D. A216 CLINICAL MANIFESTATIONS OF LYSOSOMAL ACID LIPASE DEFICIENCY (LAL-D): THE INTERNATIONAL LAL-D REGISTRY. J Can Assoc Gastroenterol 2021. [DOI: 10.1093/jcag/gwab002.214] [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: 11/14/2022] Open
Abstract
Abstract
Background
Lysosomal acid lipase deficiency (LAL-D) is a rare, autosomal recessive disease caused by pathogenic variants in the LIPA gene. Lysosomal accumulation of cholesteryl esters and triglycerides leads to cirrhosis and dyslipidemia across a clinical spectrum, and affect both infants and children/adults.
Aims
An international registry (NCT01633489; Alexion Pharmaceuticals, Inc.; 2013–ongoing) was established to better understand the natural history of lysosomal acid lipase deficiency (LAL-D) and to evaluate long-term treatment outcomes.
Methods
Baseline findings for patients enrolled through July 1, 2019 are presented. Of 190 patients enrolled, 35 were excluded from this analysis (LIPA carrier, deceased at enrollment, unconfirmed LAL-D diagnosis); 155 patients with confirmed LAL-D diagnosis were included (12 infants, 143 children/adults). LAL enzyme activity analysis was performed for 145/154 patients (94%) and genetic testing for 128/154 patients (83%).
Results
Of 105 children/adults with reported LIPA mutations, 39 were homozygous and 34 were compound heterozygous for the common LIPA mutation E8SJM (c.894G>A); 6 infants with reported LIPA mutations were homozygotes and 2 were compound heterozygotes. Of the 155 patients, 62% were <18 years, 52% were male, and 85% were white. Median (range) age at clinical onset was 0.2 years (0.0–0.7) among infants and 6.0 years (0.0–41.3) among 133 children/adults with data; median (range) age at diagnosis was 0.2 years (−0.1 to 1.2) among infants and 10.8 years (0.2–53.6) among 135 children/adults with data. Manifestations that raised suspicion of LAL-D were reported in 149/155 patients. Infants (12 with data) presented predominantly with hepatomegaly (75%), splenomegaly (58%), nausea/vomiting (58%), and diarrhea (50%), and 50% had a known family history of LAL-D. Children/adults (n=143) presented predominantly with elevated alanine aminotransferase levels (67%), hepatomegaly (66%), and elevated aspartate aminotransferase levels (65%). Of 74 children/adults with baseline liver biopsy, 58% had microvesicular steatosis, 16% had micro- and macrovesicular steatosis, and 32% had lobular inflammation. Of the 155 patients, 6% had a medical history of cirrhosis. Analyses exploring the genotype-phenotype relationship will be presented.
Conclusions
Registry data of >150 LAL-D patients demonstrate early symptom onset, variable clinical manifestations, and a significant diagnostic delay in children/adults.
Funding Agencies
Alexion Pharmaceuticals, Inc.
Collapse
Affiliation(s)
- M Francis
- Medical Affairs, Alexion Pharma Canada Corp, Vaughan, ON, Canada
| | - M Balwani
- Icahn School of Medicine at Mount Sinai Hospital, New York, NY
| | - W Balistreri
- Cincinnati Children’s Hospital Medical Center, Cincinnati, OH
| | - L D’Antiga
- Azienda Ospedaliera Papa Giovanni XXIII, Bergamo, Italy
| | - S Fang
- Alexion Pharmaceuticals Inc, Boston, MA
| | - S Jones
- Manchester University Hospital NHS Trust, Manchester, United Kingdom
| | - E Ros
- Hospital Clinic de Barcelona, Barcelona, Spain
| | - F Abel
- Alexion Pharmaceuticals Inc, Boston, MA
| | - D Wilson
- Cook Children’s Medical Center, Fort Worth, TX
| |
Collapse
|
31
|
Pan B, Wang Y, Wu C, Jia J, Huang C, Fang S, Liu L. A Mechanism of Action Study on Danggui Sini Decoction to Discover Its Therapeutic Effect on Gastric Cancer. Front Pharmacol 2021; 11:592903. [PMID: 33505310 PMCID: PMC7830678 DOI: 10.3389/fphar.2020.592903] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Accepted: 11/25/2020] [Indexed: 01/05/2023] Open
Abstract
Danggui Sini Decoction (DSD), a classic Chinese herb medicine (CHM) formula, has been used to treat various diseases in China for centuries. However, it remains challenging to reveal its mechanism of action through conventional pharmacological methods. Here, we first explored the mechanism of action of DSD with the assistance of network pharmacology and bioinformatic analysis tools, and found a potential therapeutic effect of DSD on cancer. Indeed, our in vivo experiment demonstrated that oral administration of DSD could significantly inhibit the growth of xenografted gastric cancer (GC) on mice. The subsequent enrichment analyses for 123 candidate core targets evacuated from the drug/disease-target protein-protein interaction network showed that DSD could affect the key biological processes involving the survival and growth of GC cells, such as apoptosis and cell cycle, and the disturbance of these biological processes is likely attributed to the simultaneous inhibition of multiple signaling pathways, including PI3K/Akt, MAPK, and p53 pathways. Notably, these in silico results were further validated by a series of cellular functional and molecular biological assays in vitro. Moreover, molecular docking analysis suggested an important role of MCM2 in delivering the pharmacological activity of DSD against GC. Together, these results indicate that our network pharmacology and bioinformatics-guided approach is feasible and useful in exploring not only the mechanism of action, but also the "new use" of the old CHM formula.
Collapse
Affiliation(s)
- Boyu Pan
- Department of Gastrointestinal Cancer Biology, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin’s Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Yun Wang
- Department of Integrated Traditional and Western Medicine, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin’s Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Chunnuan Wu
- Department of Pharmacy, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin’s Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Junrong Jia
- Public Laboratory, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin’s Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Chen Huang
- Department of Gastrointestinal Cancer Biology, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin’s Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Senbiao Fang
- School of Information Science and Engineering, Central South University, Changsha, China
| | - Liren Liu
- Department of Gastrointestinal Cancer Biology, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin’s Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| |
Collapse
|
32
|
Wang M, Gao M, Fang S, Zheng R, Peng D, Luo Q, Yu B. L51P, a novel mutation in the PAS domain of hERG channel, confers long QT syndrome by impairing channel activation. Am J Transl Res 2020; 12:8040-8049. [PMID: 33437379 PMCID: PMC7791479] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Accepted: 10/28/2020] [Indexed: 06/12/2023]
Abstract
The human ether-à-go-go-related gene (hERG) potassium channel mediates the repolarization of ventricular action potentials. Mutations in the KCNH2 cause long QT syndrome (LQTS) and are associated with cardiac arrhythmias and sudden death. Here, we functionally analyzed a mutation of hERG potassium channel (p.L51P), gaining novel insights into clinical genotype-phenotype relationships. Potassium currents were recorded by whole-cell patch clamping in HEK293 cells transiently transfected with wild-type and/or mutant hERG potassium channel. Immunofluorescence assay and confocal imaging were undertaken to study the effects of L51P mutation on channel trafficking. The models of the protein structure of hERG and its mutations are predicted by Amber16 software. Molecular dynamics (MD) of individual protein were performed with Particle Mesh Ewald (PME). The production of MD simulations of hERG-WT and hERG-Mut at constant pressure and temperature were carried out with SHAKE. L51 was a conservative amino acid, located in the Per-Arnt-Sim (PAS) domain of the amino terminus. L51P caused loss of function via impairing channel activation. L51P was predicted to destroy hydrophobic structure in the PAS domain, thus causing the failure of channel opening. In summary, the present study identifies L51P as a novel mutation of hERG potassium channel. L51P mutation mechanistically impairs channel activation, reducing channel functionality.
Collapse
Affiliation(s)
- Mi Wang
- Department of Cardiovascular Medicine, The Second Xiangya Hospital, Central South UniversityChangsha, Hunan, China
- Research Institute of Blood Lipid and Atherosclerosis, Central South UniversityChangsha, Hunan, China
| | - Min Gao
- Department of Pharmacy, The Sixth Affiliated Hospital, Sun Yat-sen UniversityGuangzhou, Guangdong, China
| | - Senbiao Fang
- School of Computer Science and Engineering, Central South UniversityChangsha, Hunan, China
| | - Ruoqian Zheng
- School of Computer Science and Engineering, Central South UniversityChangsha, Hunan, China
| | - Daoquan Peng
- Department of Cardiovascular Medicine, The Second Xiangya Hospital, Central South UniversityChangsha, Hunan, China
- Research Institute of Blood Lipid and Atherosclerosis, Central South UniversityChangsha, Hunan, China
| | - Qin Luo
- Department of Cardiovascular Medicine, The Second Xiangya Hospital, Central South UniversityChangsha, Hunan, China
- Research Institute of Blood Lipid and Atherosclerosis, Central South UniversityChangsha, Hunan, China
| | - Bilian Yu
- Department of Cardiovascular Medicine, The Second Xiangya Hospital, Central South UniversityChangsha, Hunan, China
- Research Institute of Blood Lipid and Atherosclerosis, Central South UniversityChangsha, Hunan, China
| |
Collapse
|
33
|
Pan B, Fang S, Zhang J, Pan Y, Liu H, Wang Y, Li M, Liu L. Chinese herbal compounds against SARS-CoV-2: Puerarin and quercetin impair the binding of viral S-protein to ACE2 receptor. Comput Struct Biotechnol J 2020; 18:3518-3527. [PMID: 33200026 PMCID: PMC7657012 DOI: 10.1016/j.csbj.2020.11.010] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 11/05/2020] [Accepted: 11/05/2020] [Indexed: 12/20/2022] Open
Abstract
The outbreak of COVID-19 raises an urgent need for the therapeutics to contain the emerging pandemic. However, no effective treatment has been found for SARS-CoV-2 infection to date. Here, we identified puerarin (PubChem CID: 5281807), quercetin (PubChem CID: 5280343) and kaempferol (PubChem CID: 5280863) as potential compounds with binding activity to ACE2 by using Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform (TCMSP). Molecular docking analysis showed that puerarin and quercetin exhibit good binding affinity to ACE2, which was validated by surface plasmon resonance (SPR) assay. Furthermore, SPR-based competition assay revealed that puerarin and quercetin could significantly affect the binding of viral S-protein to ACE2 receptor. Notably, quercetin could also bind to the RBD domain of S-protein, suggesting not only a receptor blocking, but also a virus neutralizing effect of quercetin on SARS-CoV-2. The results from network pharmacology and bioinformatics analysis support a view that quercetin is involved in host immunomodulation, which further renders it a promising candidate against COVID-19. Moreover, given that puerarin is already an existing drug, results from this study not only provide insight into its action mechanism, but also propose a prompt application of it on COVID-19 patients for assessing its clinical feasibility.
Collapse
Affiliation(s)
- Boyu Pan
- Department of Gastrointestinal Cancer Biology, Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China
| | - Senbiao Fang
- School of Computer Science and Engineering, Central South University, Changsha 410006, Hunan, China
| | - Ju Zhang
- Wuhan Yangene Biological Technology Co, LTD, Yuechuang Center of HuaZhong Agricultural University, Wuhan 430070, Hubei, China
| | - Ya Pan
- Department of Gastrointestinal Cancer Biology, Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China
| | - Han Liu
- Wuhan Yangene Biological Technology Co, LTD, Yuechuang Center of HuaZhong Agricultural University, Wuhan 430070, Hubei, China
| | - Yun Wang
- Department of Integrated Traditional & Western Medicine, Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China
| | - Min Li
- School of Computer Science and Engineering, Central South University, Changsha 410006, Hunan, China
| | - Liren Liu
- Department of Gastrointestinal Cancer Biology, Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China
| |
Collapse
|
34
|
Pan Y, Dai W, Fang S. Cutaneous phaeohyphomycosis caused by Exserohilum rostratum: a case with unusual presentation. Clin Exp Dermatol 2020; 46:569-571. [PMID: 33020950 DOI: 10.1111/ced.14477] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Revised: 09/23/2020] [Accepted: 09/29/2020] [Indexed: 11/28/2022]
Affiliation(s)
- Y Pan
- Department of Dermatology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - W Dai
- Department of Laboratory Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - S Fang
- Department of Dermatology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| |
Collapse
|
35
|
Devarakonda A, Inoue H, Fang S, Ozsoy-Keskinbora C, Suzuki T, Kriener M, Fu L, Kaxiras E, Bell DC, Checkelsky JG. Clean 2D superconductivity in a bulk van der Waals superlattice. Science 2020; 370:231-236. [DOI: 10.1126/science.aaz6643] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2019] [Accepted: 08/21/2020] [Indexed: 11/02/2022]
Abstract
Advances in low-dimensional superconductivity are often realized through improvements in material quality. Apart from a small group of organic materials, there is a near absence of clean-limit two-dimensional (2D) superconductors, which presents an impediment to the pursuit of numerous long-standing predictions for exotic superconductivity with fragile pairing symmetries. We developed a bulk superlattice consisting of the transition metal dichalcogenide (TMD) superconductor 2H-niobium disulfide (2H-NbS2) and a commensurate block layer that yields enhanced two-dimensionality, high electronic quality, and clean-limit inorganic 2D superconductivity. The structure of this material may naturally be extended to generate a distinct family of 2D superconductors, topological insulators, and excitonic systems based on TMDs with improved material properties.
Collapse
Affiliation(s)
- A. Devarakonda
- Department of Physics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - H. Inoue
- Department of Physics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - S. Fang
- Department of Physics, Harvard University, Cambridge, MA 02138, USA
| | - C. Ozsoy-Keskinbora
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA
| | - T. Suzuki
- Department of Physics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - M. Kriener
- RIKEN Center for Emergent Matter Science (CEMS), Wako 351-0198, Japan
| | - L. Fu
- Department of Physics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - E. Kaxiras
- Department of Physics, Harvard University, Cambridge, MA 02138, USA
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA
| | - D. C. Bell
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA
- Center for Nanoscale Systems, Harvard University, Cambridge, MA 02138, USA
| | - J. G. Checkelsky
- Department of Physics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| |
Collapse
|
36
|
Lin S, He L, Shen R, Fang F, Pan H, Zhu X, Wang M, Zhou Z, Liu Z, Wang X, Fang S, Sun X, Wang Y, Chen S, Ding J. Identification of the CD200R1 promoter and the association of its polymorphisms with the risk of Parkinson's disease. Eur J Neurol 2020; 27:1224-1230. [PMID: 32190938 DOI: 10.1111/ene.14224] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Revised: 02/04/2020] [Accepted: 03/05/2020] [Indexed: 01/09/2023]
Abstract
BACKGROUND AND PURPOSE Neuroinflammation is known to be involved in the pathogenesis of Parkinson's disease (PD). Abnormal activation of microglia plays a key role in this pathological process. CD200R1 is a membrane glycoprotein that is expressed primarily on myeloid cells including microglia and is involved in the maintenance of microglia in a stationary state. Our previous study reported that the regulation of CD200R1 expression is altered in PD patients. Such alteration will lead to neuroinflammation and is related to the pathogenesis of PD. The possible role of promoter polymorphisms for abnormal CD200R1 expression in PD was examined in this study. METHOD The UCSC database and dual-luciferase assays were used to confirm the promoter region of CD200R1. The promoter of CD200R1 was sequenced in 457 PD patients and 520 matched healthy controls from the Chinese Han population. Dual-luciferase assays were conducted to examine the promoter activity of CD200R1. RESULTS It was confirmed that the promoter of CD200R1 is located in the region 876-146 bp upstream of the coding DNA sequence. The frequencies of rs144721913 (P = 0.001) and rs72952157 (P = 0.022) in the promoter were significantly different between the PD group and control group. rs144721913 increases the risk of PD by approximately 14-fold and rs72952157 by 2.6-fold. The dual-luciferase assay indicated that the rs144721913 T allele and the rs72952157 G allele reduced the transcriptional activity of the CD200R1 promoter. CONCLUSIONS For the first time the promoter region of CD200R1 has been defined and two potential risk polymorphisms (rs144721913 and rs72952157) in the region for PD in Chinese Han populations have been reported.
Collapse
Affiliation(s)
- S Lin
- Institute of Neurology and Department of Neurology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - L He
- Institute of Neurology and Department of Neurology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - R Shen
- Institute of Neurology and Department of Neurology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - F Fang
- Department of Aging, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - H Pan
- Institute of Neurology and Department of Neurology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - X Zhu
- Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - M Wang
- Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Z Zhou
- Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Z Liu
- Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - X Wang
- Fujian Key Laboratory for Prenatal Diagnosis and Birth Defect, Fujian Provincial Maternity and Children Health Hospital, Affiliated Hospital of Fujian Medical University, FuJian, China
| | - S Fang
- Department of Neuroscience, University of California San Diego, La Jolla, California, USA
| | - X Sun
- Institute of Neurology and Department of Neurology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Y Wang
- Institute of Neurology and Department of Neurology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - S Chen
- Institute of Neurology and Department of Neurology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - J Ding
- Institute of Neurology and Department of Neurology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| |
Collapse
|
37
|
Huang B, Yang Z, Fang S, Li Y, Zhong Z, Zheng R, Zhang J, Wang H, Wang S, Zou Q, Wu L. Amphoteric natural starch-coated polymer nanoparticles with excellent protein corona-free and targeting properties. Nanoscale 2020; 12:5834-5847. [PMID: 32068222 DOI: 10.1039/c9nr09405a] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The protein corona on nano drug carriers is an important well-known biological issue that often induces biological incompatibility and screens the targeting molecules on the surfaces of carriers, thus causing a loss of targeting specificity. Although polyethylene glycol (PEG) and zwitterionic polymers have been widely used as anti-fouling materials, there still remain critical challenges for their use as protein-corona agents for drug delivery and targeting. Here, we have designed novel amphoteric natural starch-stabilized core-shell colloidal nanoparticles with more efficient protein corona-free properties, under long term circulation, at different protein concentrations and in different protein charge environments, compared to typical anti-fouling materials such as PEG and zwitterionic polymers. More importantly, the starch-coated polymer nanoparticles can be further functionalized by antibodies to achieve additional excellent targeting and cell internalization capabilities for their use in photodynamic therapy. Our findings demonstrate a novel protein-free or anti-fouling natural material that is very promising for use as highly efficient nano drug carriers and marine coatings.
Collapse
Affiliation(s)
- Bo Huang
- Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Hubei Collaborative Innovation Centre for Advanced Organic Chemical Materials, College of Chemistry and Chemical Engineering, Hubei University, Wuhan, 430062, China.
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
38
|
Dai W, Liu H, Liu Y, Xu X, Qian D, Luo S, Cho E, Zhu D, Amos CI, Fang S, Lee JE, Li X, Nan H, Li C, Wei Q. Genetic variants in the folate metabolic pathway genes predict cutaneous melanoma-specific survival. Br J Dermatol 2020; 183:719-728. [PMID: 31955403 DOI: 10.1111/bjd.18878] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/13/2020] [Indexed: 01/05/2023]
Abstract
BACKGROUND Folate metabolism plays an important role in DNA methylation and nucleic acid synthesis and thus may function as a regulatory factor in cancer development. Genome-wide association studies (GWASs) have identified some single-nucleotide polymorphisms (SNPs) associated with cutaneous melanoma-specific survival (CMSS), but no SNPs were found in genes involved in the folate metabolic pathway. OBJECTIVES To examine associations between SNPs in folate metabolic pathway genes and CMSS. METHODS We comprehensively evaluated 2645 (422 genotyped and 2223 imputed) common SNPs in folate metabolic pathway genes from a published GWAS of 858 patients from The University of Texas MD Anderson Cancer Center and performed the validation in another GWAS of 409 patients from the Nurses' Health Study and Health Professionals Follow-up Study, in which 95/858 (11·1%) and 48/409 (11·7%) patients died of cutaneous melanoma, respectively. RESULTS We identified two independent SNPs (MTHFD1 rs1950902 G>A and ALPL rs10917006 C>T) to be associated with CMSS in both datasets, and their meta-analysis yielded an allelic hazards ratio of 1·75 (95% confidence interval 1·32-2·32, P = 9·96 × 10-5 ) and 2·05 (1·39-3·01, P = 2·84 × 10-4 ), respectively. The genotype-phenotype correlation analyses provided additional support for the biological plausibility of these two variants' roles in tumour progression, suggesting that variation in SNP-related mRNA expression levels is likely to be the mechanism underlying the observed associations with CMSS. CONCLUSIONS Two possibly functional genetic variants, MTHFD1 rs1950902 and ALPL rs10917006, were likely to be independently or jointly associated with CMSS, which may add to personalized treatment in the future, once further validated. What is already known about this topic? Existing data show that survival rates vary among patients with melanoma with similar clinical characteristics; therefore, it is necessary to identify additional complementary biomarkers for melanoma-specific prognosis. A hypothesis-driven approach, by pooling the effects of single-nucleotide polymorphisms (SNPs) in a specific biological pathway as genetic risk scores, may provide a prognostic utility, and genetic variants of genes in folate metabolism have been reported to be associated with cancer risk. What does this study add? Two genetic variants in the folate metabolic pathway genes, MTHFD1 rs1950902 and ALPL rs10917006, are significantly associated with cutaneous melanoma-specific survival (CMSS). What is the translational message? The identification of genetic variants will make a risk-prediction model possible for CMSS. The SNPs in the folate metabolic pathway genes, once validated in larger studies, may be useful in the personalized management and treatment of patients with cutaneous melanoma.
Collapse
Affiliation(s)
- W Dai
- Department of Dermatology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, 510515, China.,Duke Cancer Institute, Duke University Medical Center, Durham, NC, 27710, USA.,Department of Medicine, Duke University Medical Center, Durham, NC, 27710, USA.,Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - H Liu
- Duke Cancer Institute, Duke University Medical Center, Durham, NC, 27710, USA.,Department of Medicine, Duke University Medical Center, Durham, NC, 27710, USA
| | - Y Liu
- Duke Cancer Institute, Duke University Medical Center, Durham, NC, 27710, USA.,Department of Medicine, Duke University Medical Center, Durham, NC, 27710, USA
| | - X Xu
- Duke Cancer Institute, Duke University Medical Center, Durham, NC, 27710, USA.,Department of Medicine, Duke University Medical Center, Durham, NC, 27710, USA
| | - D Qian
- Duke Cancer Institute, Duke University Medical Center, Durham, NC, 27710, USA.,Department of Medicine, Duke University Medical Center, Durham, NC, 27710, USA
| | - S Luo
- Department of Biostatistics and Bioinformatics, Duke University Medical Center, Durham, NC, 27710, USA
| | - E Cho
- Department of Dermatology, Warren Alpert Medical School, Brown University, Providence, RI, 02912, USA.,Department of Epidemiology, Brown University School of Public Health, Providence, RI, 02912, USA.,Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, MA, 02115, USA
| | - D Zhu
- Institute for Clinical and Translational Research, Baylor College of Medicine, Houston, TX, 77030, USA
| | - C I Amos
- Institute for Clinical and Translational Research, Baylor College of Medicine, Houston, TX, 77030, USA
| | - S Fang
- Department of Surgical Oncology, The University of Texas M. D. Anderson Cancer Center, Houston, TX, 77030, USA
| | - J E Lee
- Department of Surgical Oncology, The University of Texas M. D. Anderson Cancer Center, Houston, TX, 77030, USA
| | - X Li
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, MA, 02115, USA.,Department of Epidemiology, Fairbanks School of Public Health, Indiana University, Indianapolis, IN, 46202, USA
| | - H Nan
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, MA, 02115, USA.,Department of Epidemiology, Fairbanks School of Public Health, Indiana University, Indianapolis, IN, 46202, USA
| | - C Li
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Q Wei
- Duke Cancer Institute, Duke University Medical Center, Durham, NC, 27710, USA.,Department of Medicine, Duke University Medical Center, Durham, NC, 27710, USA.,Department of Population Health Sciences, Duke University School of Medicine, Durham, NC, 27710, USA
| |
Collapse
|
39
|
Shen Y, Fang S, Cai X, Fang Y, Lin R, Zhang Y, Li J, Liang X, Wang L, Lin L, Zhang L, Feng H, Lan S, Cai X, Xu C, Wang W, Fang M, Zhang J. Real-world fusion landscape in advanced Chinese pancreatic cancer using next generation sequecing: A multicenter study. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz431.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
40
|
Li X, Wang W, Xu C, Pu X, Fang S, Cai X, Fang Y, Zhu Y, Wang H, Liang X, Zhuang W, Zhang Y, Wang L, Cai X, Li J, Feng H, Fang M, Chen G, Lv T, Song Y. A multicenter study of NRG1 fusions in Chinese non-small cell lung cancer patients and response to afatinib using next generation sequencing. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz437.052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
41
|
Cao M, Yang G, Fang S, Jia H, Hou J, Yu B. P3390Relationship of thrombus healing to underlying plaque characteristics in ST-segment elevation myocardial infarction: an optical coherence tomography study. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz745.0266] [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
Acute ST-segment elevation myocardial infarction (STEMI) is typically characterized by an occlusive coronary thrombus propagation on a disrupted or eroded atherosclerotic plaque. A variable period of plaque instability and thrombus formation occur days or weeks old in approximately 50% of patients with STEMI. Presence of late stage (older) thrombi in aspirated coronary material is an independent predictor of 1-year and long-term mortality in STEMI patients. However, the relationship between coronary thrombus healing to underlying plaque morphology and characteristics in vivo still remains largely unknown.
Purpose
Our objective was to assess differences in thrombus healing between ruptured and eroded plaques in vivo and evaluate the impact of underlying plaque characteristics on thrombus healing using optical coherence tomography (OCT).
Methods
Analyzable coronary material was obtained during primary percutaneous coronary intervention (PCI) from 135 patients with STEMI within 12h of symptom onset. Thrombi were morphologically classified as either early or late stage (lytic changes or organization). Of the 135 patients, 110 were eligible for culprit lesion evaluation using OCT. Quantitative and qualitative underlying plaque characteristics were assessed by OCT.
Results
Late-stage thrombi were found in 49 of 110 (44.5%) culprit plaques. Patients with eroded plaques more frequently had late-stage thrombi compared with ruptured plaques (59.0% vs. 36.6%, p<0.001). Subgroup analysis was performed between plaque rupture, identified in 71 patients (64.5%) and plaque erosion in 39 patients (35.5%). In plaque ruptures, patients with late-stage thrombi had larger lipid core length (12.4±3.3 vs. 14.5±3.8, p=0.020), larger rupture cavity length [1.5 (1.0, 2.0) vs. 1.9 (1.5, 2.8), p=0.034] and increased residual thrombus length [7.8 (6.3, 11.2) vs. 10.3 (7.8, 13.8), p=0.021] assessed by OCT compared with early thrombus group. However, in plaque erosions, late stage thrombi were associated with decreased residual thrombus burden compared with patients with early thrombus group [16.8 (12.8, 20.4) vs. 13.4 (10.7, 14.8), p=0.012]. No significant difference was found between thrombus healing with peak creatine kinase concentration or maximum NT-pro BNP in subgroup analysis.
Conclusions
Coronary thrombi in STEMI patients exhibited diverse phases of healing, depending on the etiology of the underlying culprit plaque in vivo. These observations indicate entirely distinct mechanisms of thrombus propagation, maturation and healing between plaque rupture and erosion, illustrating an opportunity for more tailored treatment in patients with different plaque type.
Collapse
Affiliation(s)
- M Cao
- The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - G Yang
- The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - S Fang
- The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - H Jia
- The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - J Hou
- The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - B Yu
- The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| |
Collapse
|
42
|
Jia A, Narang A, Safar B, Zaheer A, Murphy A, Azad N, Gearhart S, Fang S, Efron J, Warczynski T, Hacker-Prietz A, Meyer J. Sequential Short-Course Radiation Therapy and Chemotherapy in the Neoadjuvant Treatment of Rectal Cancer. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.2144] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
43
|
Wu X, Liu H, Han D, Peng B, Zhang H, Zhang L, Li J, Liu J, Cui C, Fang S, Li M, Ye M, Tan W. Elucidation and Structural Modeling of CD71 as a Molecular Target for Cell-Specific Aptamer Binding. J Am Chem Soc 2019; 141:10760-10769. [PMID: 31185171 DOI: 10.1021/jacs.9b03720] [Citation(s) in RCA: 92] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Pancreatic cancer is a highly lethal malignancy associated with tissues of the pancreas. Early diagnosis and effective treatment are crucial to improving the survival rate of patients with pancreatic cancer. In a previous study, we employed the cell-SELEX strategy to obtain an ssDNA aptamer termed XQ-2d with high binding affinity for pancreatic cancer. Here, we first identify CD71 as the XQ-2d-binding target. We found that knockdown of CD71 abolished the binding of XQ-2d and that the binding affinity of XQ-2d is associated with membrane-bound CD71, rather than total CD71 levels. Competitive analysis revealed that XQ-2d shares the same binding site on CD71 with transferrin (Tf), but not anti-CD71 antibody. We then used a surface energy transfer (SET) nanoruler to measure the distance between the binding sites of XQ-2d and anti-CD71 antibody, and it was about 15 nm. Furthermore, we did molecular dynamics simulation to clarify that the spatial structure of XQ-2d and Tf competitively binding to CD71. We also engineered XQ-2d-mediated targeted therapy for pancreatic cancer, using an XQ-2d-based complex for loading doxorubicin (Dox). Because CD71 is overexpressed not only in pancreatic cancer but also in a variety of tumors, our work provides a systematic novel way of studying a potential biomarker and also promising tools for cancer diagnosis and therapy, opening new doors for effective cancer theranostics.
Collapse
Affiliation(s)
- Xiaoqiu Wu
- Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, College of Chemistry and Chemical Engineering, Aptamer Engineering Center of Hunan Province , Hunan University , Changsha , Hunan 410082 , China
| | - Honglin Liu
- Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, College of Chemistry and Chemical Engineering, Aptamer Engineering Center of Hunan Province , Hunan University , Changsha , Hunan 410082 , China.,School of Food and Biological Engineering , Hefei University of Technology , Hefei , Anhui 230009 , China
| | - Dongmei Han
- Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, College of Chemistry and Chemical Engineering, Aptamer Engineering Center of Hunan Province , Hunan University , Changsha , Hunan 410082 , China
| | - Bo Peng
- Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, College of Chemistry and Chemical Engineering, Aptamer Engineering Center of Hunan Province , Hunan University , Changsha , Hunan 410082 , China
| | - Hui Zhang
- Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, College of Chemistry and Chemical Engineering, Aptamer Engineering Center of Hunan Province , Hunan University , Changsha , Hunan 410082 , China
| | - Lin Zhang
- Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, College of Chemistry and Chemical Engineering, Aptamer Engineering Center of Hunan Province , Hunan University , Changsha , Hunan 410082 , China
| | - Jianglin Li
- Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, College of Chemistry and Chemical Engineering, Aptamer Engineering Center of Hunan Province , Hunan University , Changsha , Hunan 410082 , China
| | | | - Cheng Cui
- Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, College of Chemistry and Chemical Engineering, Aptamer Engineering Center of Hunan Province , Hunan University , Changsha , Hunan 410082 , China.,Department of Chemistry and Department of Physiology and Functional Genomics, Center for Research at the Bio/Nano Interface, Health Cancer Center, UF Genetics Institute, McKnight Brain Institute , University of Florida , Gainesville , Florida 32611 , United States
| | | | | | - Mao Ye
- Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, College of Chemistry and Chemical Engineering, Aptamer Engineering Center of Hunan Province , Hunan University , Changsha , Hunan 410082 , China
| | - Weihong Tan
- Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, College of Chemistry and Chemical Engineering, Aptamer Engineering Center of Hunan Province , Hunan University , Changsha , Hunan 410082 , China.,Department of Chemistry and Department of Physiology and Functional Genomics, Center for Research at the Bio/Nano Interface, Health Cancer Center, UF Genetics Institute, McKnight Brain Institute , University of Florida , Gainesville , Florida 32611 , United States.,Institute of Molecular Medicine (IMM), Renji Hospital, Shanghai Jiao Tong University School of Medicine, and College of Chemistry and Chemical Engineering , Shanghai Jiao Tong University , Shanghai 200240 , China
| |
Collapse
|
44
|
Wang Y, Wan H, Chen Y, Xia F, Zhang W, Wang C, Fang S, Zhang K, Li Q, Wang N, Lu Y. Association of C-peptide with diabetic vascular complications in type 2 diabetes. Diabetes Metab 2019; 46:33-40. [PMID: 31026551 DOI: 10.1016/j.diabet.2019.04.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2018] [Revised: 04/01/2019] [Accepted: 04/07/2019] [Indexed: 12/11/2022]
Abstract
AIM Fasting serum C-peptide is a biomarker of insulin production and insulin resistance, but its association with vascular complications in type 2 diabetes mellitus (T2DM) has never been fully elucidated. This study aimed to investigate whether C-peptide is associated with cardiovascular disease (CVD) and diabetic retinopathy (DR). METHODS A total of 4793 diabetes patients were enrolled from seven communities in Shanghai, China, in 2018. CVD was defined as a self-reported combination of previous diagnoses, including coronary heart disease, myocardial infarction and stroke. DR was examined using fundus photographs. Logistic regression analyses were performed, and multiple imputed data were used to obtain stabilized estimates. RESULTS Prevalence of CVD increased with increasing C-peptide levels (Q1, Q2, Q3 and Q4: 33%, 34%, 37% and 44%, respectively; Pfor trend < 0.001), whereas DR prevalence decreased with increasing C-peptide quartiles (Q1, Q2, Q3 and Q4: 21%, 19%, 15% and 12%, respectively; Pfor trend < 0.001). On logistic regression analysis, C-peptide levels were significantly associated with CVD prevalence (1.27, 95% CI: 1.13-1.42; P < 0.001) and C-peptide quartiles (Q1: reference; Q2: 1.31, 95% CI: 1.00-1.70; Q3: 1.53, 95% CI: 1.16-2.01; Q4: 1.76, 95% CI: 1.32-2.34; Pfor trend < 0.001). Given the interaction between C-peptide and BMI and the association between C-peptide and CVD (Pfor interaction = 0.015), study participants were divided into two subgroups based on BMI which revealed that the association persisted despite different BMI statuses. However, DR prevalence decreased with increasing C-peptide levels (0.73, 95% CI: 0.62-0.86; P < 0.001) and quartiles (Q1: reference; Q2: 1.00, 95% CI: 0.76-1.33; Q3: 0.69, 95% CI: 0.50-0.94; Q4: 0.51, 95% CI: 0.36-0.72; Pfor trend < 0.001). CONCLUSION C-peptide was positively associated with CVD, but inversely associated with DR progression. The association between C-peptide and CVD could be due to associated metabolic risk factors.
Collapse
Affiliation(s)
- Y Wang
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - H Wan
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - Y Chen
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - F Xia
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - W Zhang
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - C Wang
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - S Fang
- Department of Ophthalmology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - K Zhang
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - Q Li
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - N Wang
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China.
| | - Y Lu
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China.
| |
Collapse
|
45
|
Zhang S, Li Y, Wang Y, Zhong S, Liu X, Huang Y, Fang S, Zhuang A, Sun J, Zhou H, Fan X. Comparison of rim-sparing versus rim-removal techniques in deep lateral wall orbital decompression for Graves’ orbitopathy. Int J Oral Maxillofac Surg 2019; 48:461-467. [DOI: 10.1016/j.ijom.2018.08.016] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Revised: 07/10/2018] [Accepted: 08/16/2018] [Indexed: 11/15/2022]
|
46
|
Garg A, Vandenberk L, Fang S, De Witte P, Salven P, Agostinis P. SP-0114 Immunogenic versus Non-Immunogenic Cell Death in Cancer. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)30534-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
47
|
Kim KD, Jung HY, Ryu HG, Kim B, Jeon J, Yoo HY, Park CH, Choi BH, Hyun CK, Kim KT, Fang S, Yang SH, Kim JB. Betulinic acid inhibits high-fat diet-induced obesity and improves energy balance by activating AMPK. Nutr Metab Cardiovasc Dis 2019; 29:409-420. [PMID: 30799179 DOI: 10.1016/j.numecd.2018.12.001] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Revised: 12/05/2018] [Accepted: 12/05/2018] [Indexed: 12/18/2022]
Abstract
BACKGROUND AND AIM Metabolic syndromes are prevalent worldwide and result in various complications including obesity, cardiovascular disease and type II diabetes. Betulinic acid (BA) is a naturally occurring triterpenoid that has anti-inflammatory properties. We hypothesized that treatment with BA may result in decreased body weight gain, adiposity and hepatic steatosis in a diet-induced mouse model of obesity. METHODS AND RESULTS Mice fed a high-fat diet and treated with BA showed less weight gain and tissue adiposity without any change in calorie intake. Gene expression profiling of mouse tissues and cell lines revealed that BA treatment increased expression of lipid oxidative genes and decreased that of lipogenesis-related genes. This modulation was mediated by increased AMP-activated protein kinase (AMPK) phosphorylation, which facilitates energy expenditure, lipid oxidation and thermogenic capacity and exerts protective effects against obesity and nonalcoholic fatty liver disease. Overall, BA markedly inhibited the development of obesity and nonalcoholic fatty liver disease in mice fed a high-fat diet, and AMPK activation in various tissues and enhanced thermogenesis are two possible mechanisms underlying the antiobesity and antisteatogenic effects of BA. CONCLUSIONS The current findings suggest that treatment with BA is a potential dietary strategy for preventing obesity and nonalcoholic fatty liver disease.
Collapse
Affiliation(s)
- K-D Kim
- School of Life Science, Handong Global University, Pohang, Gyungbuk, South Korea
| | - H-Y Jung
- Division of Integrative Biosciences and Biotechnology, POSTECH, Pohang, Gyungbuk, South Korea; R&D Center, NovMetaPharma Co., Ltd., Pohang, Gyungbuk, South Korea
| | - H G Ryu
- Department of Life Sciences, POSTECH, Pohang, Gyungbuk, South Korea
| | - B Kim
- School of Life Science, Handong Global University, Pohang, Gyungbuk, South Korea; R&D Center, NovMetaPharma Co., Ltd., Pohang, Gyungbuk, South Korea
| | - J Jeon
- Division of Integrative Biosciences and Biotechnology, POSTECH, Pohang, Gyungbuk, South Korea; R&D Center, NovMetaPharma Co., Ltd., Pohang, Gyungbuk, South Korea
| | - H Y Yoo
- Division of Integrative Biosciences and Biotechnology, POSTECH, Pohang, Gyungbuk, South Korea
| | - C H Park
- Mistle Biotech Co., Ltd., Pohang, Gyungbuk, South Korea
| | - B-H Choi
- Advanced Bio Convergence Center, Pohang Technopark, Pohang, Gyungbuk, South Korea
| | - C-K Hyun
- School of Life Science, Handong Global University, Pohang, Gyungbuk, South Korea
| | - K-T Kim
- Division of Integrative Biosciences and Biotechnology, POSTECH, Pohang, Gyungbuk, South Korea; Department of Life Sciences, POSTECH, Pohang, Gyungbuk, South Korea
| | - S Fang
- Severance Biomedical Science Institute, BK21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, South Korea
| | - S H Yang
- Kidney Research Institute, Seoul National University College of Medicine, Seoul, South Korea; Seoul National University Biomedical Research Institute, Seoul, South Korea
| | - J-B Kim
- School of Life Science, Handong Global University, Pohang, Gyungbuk, South Korea; Mistle Biotech Co., Ltd., Pohang, Gyungbuk, South Korea.
| |
Collapse
|
48
|
Fang S, Chen SY, He X, Shen QX, Fan HZ, Wu XP, Fang ZK, Yu HP. [Evaluating the efficacy of fractional exhaled nitric oxide and impulse oscillometry in screening out cough variant asthma from patients with subacute cough]. Zhonghua Yi Xue Za Zhi 2019; 97:2338-2343. [PMID: 28822450 DOI: 10.3760/cma.j.issn.0376-2491.2017.30.005] [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 evaluate the clinical value of fractional exhaled nitric oxide (FeNO) and impulse oscillometry (IOS) in screening out cough variant asthma (CVA) from patients with subacute cough. Methods: Patients with subacute cough were included from the outpatient department of Respiratory Medicine of Zhujiang Hospital of Southern Medical University from May to October in 2016. Based on "the guidelines for the diagnosis and treatment of cough (2015 edition)" , patients were classified into CVA group, and non CVP group with other causes of subacute cough. Lung function, bronchial provocation test, FeNO and IOS were measured. The diagnostic efficiency and optimal cut-off points of FeNO and IOS indicators to diagnose CVA from subacute cough were respectively assessed by the receiver operating characteristic (ROC) curves. Results: A total of 85 patients with subacute cough were included. Among them, 35 patients were diagnosed with CVA (CVA group), the others are classified as non CVP group (n=50). In CVA group, the levels of FeNO and total respiratory impedance (Zrs) were significantly higher, while maximal mid expiratory flow (MMEF)%pred, and mid expiratory flow (MEF)75/50/25%pred, reactance at 5 Hz (X5) levels were significantly lower than those in non CVP group (all P<0.05). Furthermore, the FeNO had a positive correlation with Zrs and Fres (ρ=0.312, P=0.003 and ρ=0.318, P=0.003, respectively), had a negative correlation with X5 (ρ=-0.288, P=0.007). A ROC analysis indicated that the area under ROC curve (AUC) of FeNO in diagnosis of CVA was 0.786 (95% CI: 0.684-0.889), the best cut-off point of FeNO volume ratio was 24.5×10(-9). When FeNO volume ratio=24.5×10(-9,) the sensitivity of in diagnosing CVA was 77.8%, specificity was 70.0%. The AUC for Zrs and X5 were 0.679 and 0.687, respectively. The combination of FeNO and X5 had a greater AUC than other indicators (AUC: 0.817, 95% CI: 0.726-0.908), the sensitivity and specificity were 80.6% and 66.0%, respectively. Conclusion: Both FeNO level and IOS index can be used to screen CVA in patients with subacute cough, and the combination of both have better value in diagnosing CVA.
Collapse
Affiliation(s)
- S Fang
- Department of Respiratory Medicine, Zhujiang Hospital of Southern Medical University, Guangzhou 510280, China
| | | | | | | | | | | | | | | |
Collapse
|
49
|
Jin C, Yu L, Fang S. Effect of glucagon-like peptide-1 on autophagy of islet β cells in type 2 diabetic mice with high fat diet. J BIOL REG HOMEOS AG 2019; 33:133-138. [PMID: 30656925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Affiliation(s)
- C Jin
- Department of Endocrinology, Zhuji People's Hospital, Zhuji City, China
| | - L Yu
- Department of Endocrinology, Zhuji People's Hospital, Zhuji City, China
| | - S Fang
- Department of Endocrinology, Zhuji People's Hospital, Zhuji City, China
| |
Collapse
|
50
|
Wang L, Aoli Wang Q, Jin F, Fang S, Luo F, Wu Y, Li F, Liu J, Wang Y, Jin J, Liao X, Ren Z, Wang Y. Construction, identification, and immunogenic assessments of an HSV-1 mutant vaccine with a UL18 deletion. Acta Virol 2018; 62:164-171. [PMID: 29895157 DOI: 10.4149/av_2018_207] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
HSV-1 is a mucosal and nerve pathogen, whose morbidity shows an increasing tendency. Although several antiviral drugs exist, there is no cure for viral latency for virtually all carriers. There is an urgent need for an HSV-1 vaccine to control infection and limit its spread and recurrence. The UL18 gene, encoding a vital component of capsids, is one of the essential genes of HSV-1. Deletion of UL18 from HSV-1 may be exploited as a new approach to develop an attenuated vaccine. The purpose of this study was to construct a DNA vaccine with a full-length UL18 gene deletion of the HSV-1 genome that can induce an effective immune response. A UL18-knockdown plasmid (BAC-HSV-1ΔUL18) was constructed using the bacterial markerless gene knockout system, consisting of the functional pREDI plasmid and BAC-HSV-1 plasmid. Mice were immunized weekly for 3 weeks, and at 1 week post immunization, blood and splenocyte samples of vaccinated and control groups of mice were prepared for immunogenicity assessment. The level of immune response was evaluated using a DTH assay, cytokine determination, and splenocyte proliferation assay. Combination of the pREDI plasmid and BAC-HSV-1 plasmid provides an effective bacterial markerless gene knockout system. Using two-step homologous recombination with the UL18 homologous recombination fragment constructed by multistep PCR amplification, BAC-HSV-1ΔUL18 plasmid vaccine was successfully constructed and was found to significantly enhance cellular immune responses.
Collapse
|