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Lan XQ, Deng CJ, Wang QQ, Zhao LM, Jiao BW, Xiang Y. The role of TGF-β signaling in muscle atrophy, sarcopenia and cancer cachexia. Gen Comp Endocrinol 2024; 353:114513. [PMID: 38604437 DOI: 10.1016/j.ygcen.2024.114513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Revised: 02/24/2024] [Accepted: 04/03/2024] [Indexed: 04/13/2024]
Abstract
Skeletal muscle, comprising a significant proportion (40 to 50 percent) of total body weight in humans, plays a critical role in maintaining normal physiological conditions. Muscle atrophy occurs when the rate of protein degradation exceeds protein synthesis. Sarcopenia refers to age-related muscle atrophy, while cachexia represents a more complex form of muscle wasting associated with various diseases such as cancer, heart failure, and AIDS. Recent research has highlighted the involvement of signaling pathways, including IGF1-Akt-mTOR, MuRF1-MAFbx, and FOXO, in regulating the delicate balance between muscle protein synthesis and breakdown. Myostatin, a member of the TGF-β superfamily, negatively regulates muscle growth and promotes muscle atrophy by activating Smad2 and Smad3. It also interacts with other signaling pathways in cachexia and sarcopenia. Inhibition of myostatin has emerged as a promising therapeutic approach for sarcopenia and cachexia. Additionally, other TGF-β family members, such as TGF-β1, activin A, and GDF11, have been implicated in the regulation of skeletal muscle mass. Furthermore, myostatin cooperates with these family members to impair muscle differentiation and contribute to muscle loss. This review provides an overview of the significance of myostatin and other TGF-β signaling pathway members in muscular dystrophy, sarcopenia, and cachexia. It also discusses potential novel therapeutic strategies targeting myostatin and TGF-β signaling for the treatment of muscle atrophy.
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Affiliation(s)
- Xin-Qiang Lan
- Metabolic Control and Aging Group, Human Aging Research Institute (HARI) and School of Life Science, Nanchang University, Nanchang 330031, Jiangxi, China
| | - Cheng-Jie Deng
- Department of Biochemistry and Molecular Biology, Faculty of Basic Medical Science, Kunming Medical University, Kunming 650500, Yunnan, China
| | - Qi-Quan Wang
- Metabolic Control and Aging Group, Human Aging Research Institute (HARI) and School of Life Science, Nanchang University, Nanchang 330031, Jiangxi, China
| | - Li-Min Zhao
- Senescence and Cancer Group, Human Aging Research Institute (HARI) and School of Life Science, Nanchang University, Nanchang 330031, Jiangxi, China
| | - Bao-Wei Jiao
- National Key Laboratory of Genetic Evolution & Animal Models, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, 650201, Yunnan, China
| | - Yang Xiang
- Metabolic Control and Aging Group, Human Aging Research Institute (HARI) and School of Life Science, Nanchang University, Nanchang 330031, Jiangxi, China.
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Sang D, Fan SM, Li SY, Zhang JT, Wang HM, Zhao XH, Zheng LJ, Liang P, Xi GB, Zhao LM, Zhang YR, Yuan P. [Mid-term analysis of prospective cohort study of rivaroxaban in preventing CRT in breast cancer]. Zhonghua Zhong Liu Za Zhi 2024; 46:256-262. [PMID: 38494772 DOI: 10.3760/cma.j.cn112152-20231024-00218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 03/19/2024]
Abstract
Objective: To explore the efficacy and safety of Rivaroxaban in preventing catheter related thrombosis (CRT) in patients with breast cancer who are undergoing central venous catheter chemotherapy, and provide basis for making standardized prevention and treatment strategies. Methods: In this research, a prospective cohort study was adopted, and breast cancer patients who received central venous catheter chemotherapy in Sanhuan Cancer Hospital during September 2020 to March 2022 were selected as a treatment group to take the rivaroxaban anticoagulation therapy with 10 mg.po.qd for one month. The control group got no preventive anticoagulation therapy. Vascular ultrasound examination was taken to confirm the occurrence of CRT, and a chi-square test was done for comparison the disparity between the groups. Logistic regression was applied to analyze the univariate and multivariate factors for the formation of CRT. Results: In the research, a total of 235 patients were selected, and there were a total of 19 035 days of catheterization with 81 days of catheterization on average. While in the control group, the incidence of CRT was 28.0% (33/118), the incidence of CRT in the treatment group was 20.5% (24/117), the difference was no significant (P=0.183). Subgroup analysis results showed that the peripherally inserted central catheter (PICC) was performed in 165 cases with the CRT incidence of 18.2% (30/165) and thrombosis was mostly seen around axillary vein, accounting for 63.3%. Subclavian vein catheterization was performed in 63 cases with the CRT incidence of 39.7% (25/63), and thrombosis was mostly seen around subclavian vein, accounting for 88.0% (22/25). Implantable venous access port was implanted in 7 cases around subclavian vein and internal jugular vein with the CRT incidence of 28.6% (2/7). The patients who developed CRT within 30 days after catheterization accounted for 54.4% (31/57), 22.8% (13/57) in a period during 30 days and 60 days) and 22.8% (13/57) in a period during 60 days and 180 days). The diagnosed CRT patients had been treated with rivaroxaban 15 mg.bid.po for 3 months. During the 3 months, 100.0% of the thrombosis waned, 71.9% (41/57) of the thrombosis waned within 30 days, 19.3% (11/57) in a period during 30 and 60days and 8.8% (5/57) in a period during 60 days and 90 days. Univariate and multivariate analysis indicated that the risk of CRT in subclavian vein catheterization was higher than that in PICC, respectively (OR=2.898, 95% CI:1.386-6.056 P=0.005), and the type of catheterization was an independent factor for the formation of thrombosis. Safety analysis result showed that in the prevention of CRT, rivaroxaban treatment did not induce drug-related bleeding, liver function damage, bone marrow suppression or any other side effects. While CRT diagnosed patients were treated with anticoagulation, they kept the central venous catheter, and the infusion was smooth. These patients all finished the anti-tumor treatment as planned, and no abnormalities like new thrombosis or pulmonary embolism were observed. Conclusions: In the mid-term analysis, the proportion of Rivaroxaban in preventing anticoagulant CRT decreases, but it don't reach statistical significance. The sample size should be further increased for observation. Rivaroxaban is proved effective and very safe in the treatment of CRT, and does not affect the concurrent chemotherapy. Medical personnel should carry out the policy of "early prevention, early detection and early treatment" for CRT so as to improve the patients' quality of life.
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Affiliation(s)
- D Sang
- Department of Medical Oncology, Beijing Chaoyang District Sanhuan Cancer Hospital, Beijing 100122,China
| | - S M Fan
- Department of Medical Oncology, Beijing Chaoyang District Sanhuan Cancer Hospital, Beijing 100122,China
| | - S Y Li
- Department of Medical Oncology, Beijing Chaoyang District Sanhuan Cancer Hospital, Beijing 100122,China
| | - J T Zhang
- Department of Medical Oncology, Beijing Chaoyang District Sanhuan Cancer Hospital, Beijing 100122,China
| | - H M Wang
- Department of Medical Oncology, Beijing Chaoyang District Sanhuan Cancer Hospital, Beijing 100122,China
| | - X H Zhao
- Department of Medical Oncology, Beijing Chaoyang District Sanhuan Cancer Hospital, Beijing 100122,China
| | - L J Zheng
- Department of Medical Oncology, Beijing Chaoyang District Sanhuan Cancer Hospital, Beijing 100122,China
| | - P Liang
- Department of Medical Oncology, Beijing Chaoyang District Sanhuan Cancer Hospital, Beijing 100122,China
| | - G B Xi
- Department of Medical Oncology, Beijing Chaoyang District Sanhuan Cancer Hospital, Beijing 100122,China
| | - L M Zhao
- Department of VIP Medical Services, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Y R Zhang
- Department of Medical Oncology, Beijing Chaoyang District Sanhuan Cancer Hospital, Beijing 100122,China
| | - P Yuan
- Department of VIP Medical Services, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
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Yang TT, Liu PJ, Sun QY, Wang ZY, Yuan GB, Fan ZX, Ma L, Lu JF, Yuan BY, Zou WL, Zhao LM, Li Q, Liu GZ. CD4 +CD25 + regulatory T cells ex vivo generated from autologous naïve CD4 + T cells suppress EAE progression. Sci Rep 2024; 14:6262. [PMID: 38491084 PMCID: PMC10943184 DOI: 10.1038/s41598-024-56739-2] [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: 12/01/2023] [Accepted: 03/11/2024] [Indexed: 03/18/2024] Open
Abstract
CD4+CD25+ regulatory T cells (Tregs) play an important role in maintaining immune homeostasis in multiple sclerosis (MS). Hence, we aimed to explore the therapeutic efficacy and safety of adoptive cell therapy (ACT) utilizing induced antigen-specific Tregs in an animal model of MS, that is, in an experimental autoimmune encephalomyelitis (EAE) model. B cells from EAE model that were activated with soluble CD40L were used as antigen-presenting cells (APCs) to induce the differentiation of antigen-specific Tregs from naïve CD4 precursors, and then, a stepwise isolation of CD4+CD25highCD127low Tregs was performed using a flow sorter. All EAE mice were divided into Treg-treated group (2 × 104 cells in 0.2 mL per mouse, n = 14) and sham-treated group (0.2 mL normal saline (NS), n = 20), which were observed daily for clinical assessment, and for abnormal appearance for 6 weeks. Afterward, histological analysis, immunofluorescence and real-time PCR were performed. Compared to sham-treated mice, Treg-treated mice exhibited a significant decrease in disease severity scores and reduced inflammatory infiltration and demyelination in the spinal cord. Additionally, Tregs-treated mice demonstrated higher CCN3 protein and mRNA levels than sham-treated mice. The results of this preclinical study further support the therapeutic potential of this ACT approach in the treatment of MS.
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Affiliation(s)
- Ting-Ting Yang
- Department of Neurology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Pen-Ju Liu
- Department of Neurology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Qing-Yu Sun
- Department of Anesthesiology, Chang Hai Hospital, Naval Military Medical University, Shanghai, China
| | - Ze-Yi Wang
- Department of Neurology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Guo-Bin Yuan
- Department of Neurology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Ze-Xin Fan
- Department of Neurology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Lin Ma
- Department of Neurology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Jian-Feng Lu
- Department of Neurology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Bo-Yi Yuan
- Department of Neurology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Wen-Long Zou
- Department of Neurology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Li-Min Zhao
- Experimental Center, Beijing Institute of Heart Lung and Blood Vessel Diseases, Beijing, China
| | - Qian Li
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Guang-Zhi Liu
- Department of Neurology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China.
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Zhao LM, Pannecouque C, Clercq ED, Wang S, Chen FE. Structure-based design of novel heterocycle-substituted ATDP analogs as non-nucleoside reverse transcriptase inhibitors with improved selectivity and solubility. Acta Pharm Sin B 2023; 13:4906-4917. [PMID: 38045058 PMCID: PMC10692386 DOI: 10.1016/j.apsb.2023.07.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 06/10/2023] [Accepted: 07/11/2023] [Indexed: 12/05/2023] Open
Abstract
Following on our recently developed biphenyl-ATDP non-nucleoside reverse transcriptase inhibitor ZLM-66 (SI = 2019.80, S = 1.9 μg/mL), a series of novel heterocycle-substituted ATDP derivatives with significantly improved selectivity and solubility were identified by replacement of the biphenyl moiety of ZLM-66 with heterocyclic group with lower lipophilicity. Evidently, the representative analog 7w in this series exhibited dramatically enhanced selectivity and solubility (SI = 12,497.73, S = 4472 μg/mL) in comparison with ZLM-66 (SI = 2019.80, S = 1.9 μg/mL). This new NNRTI conferred low nanomolar inhibition of wild-type HIV-1 strain and tested mutant strains (K103N, L100I, Y181C, E138K, and K103N + Y181C). The analog also demonstrated favorable safety and pharmacokinetic profiles, as evidenced by its insensitivity to CYP and hERG, lack of mortality and pathological damage, and good oral bioavailability in rats (F = 27.1%). Further development of 7w for HIV therapy will be facilitated by this valuable information.
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Affiliation(s)
- Li-Min Zhao
- Key Laboratory of Natural Resources of Changbai Mountain & Functional Molecules, Ministry of Education, Yanbian University College of Pharmacy, Yanbian University, Yanji 133002, China
- Engineering Center of Catalysis and Synthesis for Chiral Molecules, Department of Chemistry, Fudan University, Shanghai 200433, China
- Shanghai Engineering Center of Industrial Asymmetric Catalysis for Chiral Drugs, Shanghai 200433, China
| | | | - Erik De Clercq
- Rega Institute for Medical Research, KU Leuven, Leuven B-3000, Belgium
| | - Shuai Wang
- Engineering Center of Catalysis and Synthesis for Chiral Molecules, Department of Chemistry, Fudan University, Shanghai 200433, China
- Shanghai Engineering Center of Industrial Asymmetric Catalysis for Chiral Drugs, Shanghai 200433, China
| | - Fen-Er Chen
- Key Laboratory of Natural Resources of Changbai Mountain & Functional Molecules, Ministry of Education, Yanbian University College of Pharmacy, Yanbian University, Yanji 133002, China
- Engineering Center of Catalysis and Synthesis for Chiral Molecules, Department of Chemistry, Fudan University, Shanghai 200433, China
- Shanghai Engineering Center of Industrial Asymmetric Catalysis for Chiral Drugs, Shanghai 200433, China
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Li JS, Zhang HL, Guo W, Wang L, Zhang D, Zhao LM, Zhou M. Efficacy and safety of Kangxian Huanji Granule as adjunctive treatment in acute exacerbation of idiopathic pulmonary fibrosis: An exploratory randomized controlled trial. J Integr Med 2023; 21:543-549. [PMID: 37993378 DOI: 10.1016/j.joim.2023.11.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Accepted: 05/12/2023] [Indexed: 11/24/2023]
Abstract
BACKGROUND Acute exacerbation of idiopathic pulmonary fibrosis (AE-IPF) is an important occurrence in the natural history of idiopathic pulmonary fibrosis (IPF), associated with high hospitalization rates, high mortality and poor prognosis. At present, there is no effective treatment for AE-IPF. Chinese herbal medicine has some advantages in treating IPF, but its utility in AE-IPF is unclear. OBJECTIVE The treatment of AE-IPF with Kangxian Huanji Granule (KXHJ), a compound Chinese herbal medicine, lacks an evidence-based justification. This study explores the efficacy and safety of KXHJ in patients with AE-IPF. DESIGN, SETTING, PARTICIPANTS AND INTERVENTIONS We designed a randomized, double-blind, placebo-controlled, exploratory clinical trial. A total of 80 participants diagnosed with AE-IPF were randomly assigned to receive KXHJ or a matching placebo; the treatment included a 10 g dose, administered twice daily for 4 weeks, in addition to conventional treatment. Participants were followed up for 12 weeks after the treatment. MAIN OUTCOME MEASURES The primary endpoints were treatment failure rate and all-cause mortality. Secondary endpoints included the length of hospitalization, overall survival, acute exacerbation rate, intubation rate, the modified British Medical Research Council (mMRC) score, and the St George's Respiratory Questionnaire for IPF (SGRQ-I) score. RESULTS The rate of treatment failure at 4 weeks was lower in the intervention group compared to the control group (risk ratio [RR]: 0.22; 95% confidence interval [CI]: 0.051 to 0.965, P = 0.023). There was no significant difference in all-cause mortality at 16 weeks (RR: 0.75; 95% CI: 0.179 to 3.138; P > 0.999) or in the acute exacerbation rate during the 12-week follow-up period (RR: 0.69; 95% CI: 0.334 to 1.434; P = 0.317). The intervention group had a shorter length of hospitalization than the control group (mean difference [MD]: -3.30 days; 95% CI, -6.300 to -0.300; P = 0.032). Significant differences in the mean change from baseline in the mMRC (between-group difference: -0.67; 95% CI: -0.89 to -0.44; P < 0.001) and SGRQ-I score (between-group difference: -10.36; 95% CI: -16.483 to -4.228; P = 0.001) were observed after 4 weeks, and also in the mMRC (between-group difference: -0.67; 95% CI: -0.91 to -0.43; P < 0.001) and SGRQ-I (between-group difference: -10.28; 95% CI, -15.838 to -4.718; P < 0.001) at 16 weeks. The difference in the adverse events was not significant. CONCLUSION KXHJ appears to be effective and safe for AE-IPF and can be considered a complementary treatment in patients with AE-IPF. As a preliminary exploratory study, our results provide a basis for further clinical research. TRIAL REGISTRATION Chinese Clinical Trial Registry (ChiCTR1900026289). Please cite this article as: Li JS, Zhang HL, Guo W, Wang L, Zhang D, Zhao LM, Zhou M. Efficacy and safety of Kangxian Huanji Granule as adjunctive treatment in acute exacerbation of idiopathic pulmonary fibrosis: an exploratory randomized controlled trial. J Integr Med. 2023; 21(6): 543-549.
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Affiliation(s)
- Jian-Sheng Li
- Co-construction Collaborative Innovation Center for Chinese Medicine and Respiratory Diseases by Henan & Education Ministry of China, Henan Key Laboratory of Chinese Medicine for Respiratory Diseases, Henan University of Chinese Medicine, Zhengzhou 450046, Henan Province, China; Respiratory Department, the First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou 450000, Henan Province, China.
| | - Hai-Long Zhang
- Co-construction Collaborative Innovation Center for Chinese Medicine and Respiratory Diseases by Henan & Education Ministry of China, Henan Key Laboratory of Chinese Medicine for Respiratory Diseases, Henan University of Chinese Medicine, Zhengzhou 450046, Henan Province, China; Respiratory Department, the First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou 450000, Henan Province, China
| | - Wen Guo
- Respiratory Department, the First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou 450000, Henan Province, China
| | - Lu Wang
- Respiratory Department, the First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou 450000, Henan Province, China
| | - Dong Zhang
- Respiratory Department, the First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou 450000, Henan Province, China
| | - Li-Min Zhao
- Department of Respiratory and Critical Care Medicine, Henan Provincial People's Hospital, Zhengzhou 463599, Henan Province, China
| | - Miao Zhou
- Respiratory Department, the Third Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou 450003, Henan Province, China
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Tian SY, Li Y, Zhao LM, He HY. [Clinicopathological characteristics of Klinefelter syndrome: a testicular biopsy analysis of 87 cases]. Zhonghua Bing Li Xue Za Zhi 2023; 52:341-346. [PMID: 36973193 DOI: 10.3760/cma.j.cn112151-20221216-01045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
Abstract
Objective: To investigate the clinicopathological characteristics of testicular biopsies from Klinefelter syndrome (KS) patients. Methods: The testicular biopsy specimens of 87 patients with KS (a total of 107 biopsy specimens) were collected from the Department of Pathology, Peking University Third Hospital, Beijing, China from January 2017 to July 2022. All patients were diagnosed as KS by peripheral blood karyotyping analysis. The testicular histopathologic features, testicular volume and hormone levels were evaluated retrospectively. The histopathologic analysis was used to assess the quantity and morphology of Leydig cells, the spermatogenic state of seminiferous tubules, the thickening of the basement membrane of seminiferous tubules and the changes of stroma. Results: Leydig cell proliferative nodules were seen in 95.3% (102/107) of KS testicular biopsy tissues. The eosinophilic inclusion bodies and lipofuscin in Leydig cells were found in 52.3% (56/107) and 57.9% (62/107) of specimens, respectively. The Sertoli cell only seminiferous tubules and the hyalinized tubules were found in 66.4% (71/107) and 76.6% (82/107) of the examined tissues, respectively. The tubules with complete spermatogenic arrest were found in 15.9% (17/107) of specimens, and 5.6% (6/107) of the specimens showed low spermatogenesis or incomplete spermatogenic arrest. In 85.0% (91/107) of the specimens, increased thick-walled small vessels with hyaline degeneration were identified. Conclusions: The most common features of KS testicular specimens are Leydig cell proliferative nodules, hyaline degeneration of seminiferous tubules and proliferation of thick-walled blood vessels. Testicular biopsy specimens of KS are rare. The pathologists can make a tentative diagnosis of KS based on the histological findings, combined with the ultrasound and laboratory results, which is helpful for further diagnosis and treatment of KS.
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Affiliation(s)
- S Y Tian
- Department of Pathology, School of Basic Medical Sciences, Peking University Third Hospital, Beijing 100191, China
| | - Y Li
- Department of Pathology, School of Basic Medical Sciences, Peking University Third Hospital, Beijing 100191, China
| | - L M Zhao
- Department of Urology, Peking University Third Hospital,Beijing 100191, China
| | - H Y He
- Department of Pathology, School of Basic Medical Sciences, Peking University Third Hospital, Beijing 100191, China
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Li YJ, Liang J, Cheng XY, Zhao LM, Zeng CC. Establishment of Transgenic Mouse Leukemia Cell Lines Expressing Human CD4/CCR5/CyclinT1 Infected with HIV-1. Discov Med 2023; 35:116-123. [PMID: 37105922 DOI: 10.24976/discov.med.202335175.12] [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] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
PURPOSE Establishing a cross-species animal model of human immunodeficiency virus (HIV) infection is crucial for the study of HIV/acquired immunodeficiency syndrome (AIDS). However, due to the species-specific characteristics of HIV-1, the virus can only infect directly humans and a small number of non-human primates. It cannot directly infect mouse cells across species. METHODS A mouse leukemia cell line with high CD4 (clusters of differentiation 4)/CCR5 (CC-chemokine receptor 5)/CyclinT1 expression was constructed in this study. First, CD4/CCR5/CyclinT1 lentiviral vector was used to infect a murine leukemia cell line L1210 to express the receptor CD4, co-receptor CCR5 and tat protein driving factor CyclinT1, which are required to infect L1210 cells with HIV-1. RESULTS The results of sequencing identification and fluorescence expression showed that the plasmid expressing CD4, CCR5, and CyclinT1 vector was successfully constructed and wrapped as the lentiviral vector. Moreover, it was observed that CD4, CCR5, and CyclinT1 proteins were highly expressed in mouse leukemia cells L1210 compared to empty lentiviral vector-transfected cells. Next, viral entry and replication were demonstrated when HIV-1 RNA was detected in body cells and cultured supernatants. Transgenic mice cells L1210 showed significantly greater content of HIV-1 RNA compared to control L1210 cells. Finally, CEMx174 was infected with cell culture supernatants to clarify that the progeny virus is an active virus with infection ability. HIV-1 RNA was highly expressed in CEMx174 cells. CONCLUSIONS This study made the foundation for future studies evaluating HIV-1 cross-species infection in a murine animal model. The results provided new direction for studies investigating the development of vaccines, antiviral drugs screening, and HIV/AIDS pathogenesis.
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Affiliation(s)
- Ya-Jing Li
- The Scientific Research Department, Shenzhen Longhua District Central Hospital, 518110 Shenzhen, Guangdong, China
| | - Juan Liang
- School of Science, Westlake University, 310030 Hangzhou, Zhejiang, China
| | - Xin-Yu Cheng
- Child Rehabilitation Department, Shenzhen Longhua Maternity and Child Healthcare Hospital, 518110 Shenzhen, Guangdong, China
| | - Li-Min Zhao
- The Scientific Research Department, Shenzhen Longhua District Central Hospital, 518110 Shenzhen, Guangdong, China
| | - Chang-Chun Zeng
- The Scientific Laboratory Center, Shenzhen Longhua District Central Hospital, 518110 Shenzhen, Guangdong, China
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Yang R, Bi XD, Li Y, Liu M, Hu MQ, Zhao LM, Zhang H, Gao F. Scorpion-Shaped Zinc Porphyrins as Tetrafunctional TAR RNA Predators and HIV-1 Reverse Transcriptase Inhibitors. Inorg Chem 2022; 61:10774-10780. [PMID: 35796528 DOI: 10.1021/acs.inorgchem.2c00975] [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: 11/29/2022]
Abstract
HIV-1 reverse transcriptase (RT) inhibitors are fundamental to the discovery and development of anti-HIV drugs. Their main target is RT, and only a tiny number of them can bind to viral RNA. In this paper, five new Zn(II) porphyrin compounds were developed with different characters. ZnTPP4 has both the appearance and the functions of a scorpion with a rigid tail and stinger to selectively hunt HIV-1 TAR RNA based on the molecular recognition of hydrogen bonds, a fierce chelicera to bite RNA by metal coordination, mighty pedipalps to grasp the bound RNA by supramolecular inclusion, and a broad body maintaining the configuration of each functional area so that they can cooperate with each other and providing accommodation space for the bound RNA. This tetrafunctional Zn(II) porphyrin is relatively nontoxic to normal cells and can produce sensitive responses for RNA. Moreover, this work offers practical construction methodologies for medication of AIDS and other diseases closely related to RT like EBOV and SARS-CoV-2.
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Affiliation(s)
- Rong Yang
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education; Yunnan Provincial Center for Research & Development of Natural Products; School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. China
| | - Xu-Dan Bi
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education; Yunnan Provincial Center for Research & Development of Natural Products; School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. China
| | - Yan Li
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education; Yunnan Provincial Center for Research & Development of Natural Products; School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. China
| | - Meng Liu
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education; Yunnan Provincial Center for Research & Development of Natural Products; School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. China
| | - Man-Qi Hu
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education; Yunnan Provincial Center for Research & Development of Natural Products; School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. China
| | - Li-Min Zhao
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education; Yunnan Provincial Center for Research & Development of Natural Products; School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. China
| | - Hongbin Zhang
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education; Yunnan Provincial Center for Research & Development of Natural Products; School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. China
| | - Feng Gao
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education; Yunnan Provincial Center for Research & Development of Natural Products; School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. China
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Li H, Liu NN, Li JR, Wang MX, Tan JL, Dong B, Lan P, Zhao LM, Peng ZG, Jiang JD. Bicyclol ameliorates advanced liver diseases in murine models via inhibiting the IL-6/STAT3 signaling pathway. Biomed Pharmacother 2022; 150:113083. [PMID: 35658240 DOI: 10.1016/j.biopha.2022.113083] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 04/27/2022] [Accepted: 05/04/2022] [Indexed: 11/02/2022] Open
Abstract
Bicyclol, a synthetic hepatoprotective and anti-inflammatory agent approved in China, was widely used to treat various hepatitis accompanied by elevated serum aminotransferases. However, the pharmacological effects and mechanisms of bicyclol on advanced liver diseases, such as fibrosis/cirrhosis and hepatocellular carcinoma (HCC), remain to be explored. Here, we revealed that bicyclol prevents from formatting severe fibrosis, slows the progression of moderate liver fibrosis, accelerates the regression of moderate liver fibrosis, decreases the malignancy of HCC in rat models induced by diethylnitrosamine (DEN), and also blocks steatohepatitis to HCC in mice induced by western diet plus carbon tetrachloride and DEN. The detailed pharmacological mechanism showed that bicyclol alleviates chronic progressive liver diseases by inhibiting the levels of IL-6 and subsequent phosphorylated STAT3. Conclusion: Bicyclol plays significant protective roles in multiply stages of fibrosis/cirrhosis-HCC and nonalcoholic fatty liver disease-related HCC via inhibiting IL-6/STAT3 signaling pathway. Therefore, bicyclol might be a promising therapeutic strategy for treating advanced liver diseases.
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Affiliation(s)
- Hu Li
- CAMS Key Laboratory of Antiviral Drug Research, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China; Key Laboratory of Biotechnology of Antibiotics, The National Health and Family Planning Commission (NHFPC), Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China
| | - Nan-Nan Liu
- CAMS Key Laboratory of Antiviral Drug Research, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China
| | - Jian-Rui Li
- CAMS Key Laboratory of Antiviral Drug Research, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China; Beijing Key Laboratory of Antimicrobial Agents, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China
| | - Mei-Xi Wang
- CAMS Key Laboratory of Antiviral Drug Research, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China
| | - Jia-Li Tan
- CAMS Key Laboratory of Antiviral Drug Research, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China
| | - Biao Dong
- CAMS Key Laboratory of Antiviral Drug Research, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China; Key Laboratory of Biotechnology of Antibiotics, The National Health and Family Planning Commission (NHFPC), Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China
| | - Pei Lan
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China
| | - Li-Min Zhao
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China
| | - Zong-Gen Peng
- CAMS Key Laboratory of Antiviral Drug Research, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China; Key Laboratory of Biotechnology of Antibiotics, The National Health and Family Planning Commission (NHFPC), Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China; Beijing Key Laboratory of Antimicrobial Agents, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China.
| | - Jian-Dong Jiang
- CAMS Key Laboratory of Antiviral Drug Research, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China; Key Laboratory of Biotechnology of Antibiotics, The National Health and Family Planning Commission (NHFPC), Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China; Beijing Key Laboratory of Antimicrobial Agents, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China; State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China.
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10
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Jin X, Zhao LM, Wang S, Huang WJ, Zhang YX, Pannecouque C, De Clercq E, Chen FE. Structure-Based Discovery of Novel NH 2-Biphenyl-Diarylpyrimidines as Potent Non-Nucleoside Reverse Transcriptase Inhibitors with Significantly Improved Safety: From NH 2-Naphthyl-Diarylpyrimidine to NH 2-Biphenyl-Diarylpyrimidine. J Med Chem 2022; 65:8478-8492. [PMID: 35649164 DOI: 10.1021/acs.jmedchem.2c00468] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Results from recently completed studies suggested that the NH2-naphthyl-diarylpyrimidine JX-7 displayed remarkable inhibitory activity against wild-type HIV-1 (EC50 = 5 nM) and numerous clinically observed variants in MT-4 cells; however, its high cytotoxicity (CC50 = 19 μM) precluded its further development as a clinical candidate. One approach we took to improve the safety involved replacing the naphthyl of JX-7 with biphenyl to provide a series of novel NH2-biphenyl-DAPYs. Investigation of the structure-activity relationships (SARs) led to the identification of 4ab, a potent NNRTI with significantly reduced cytotoxicity (CC50 = 120 μM), approximately 6-fold lower than JX-7, which maintained remarkable anti-HIV-1 activity against wild-type HIV-1 (EC50 = 1.9 nM) and multiple mutant strains simultaneously. Also, 4ab displayed weak CYP sensitivity, little inhibition of hERG, and no apparent in vivo acute toxicity. These promising results demonstrate that 4ab can be used as a drug candidate for HIV-1 therapy.
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Affiliation(s)
- Xin Jin
- Engineering Center of Catalysis and Synthesis for Chiral Molecules, Department of Chemistry, Fudan University, Shanghai 200433, China.,Shanghai Engineering Center of Industrial Asymmetric Catalysis for Chiral Drugs, Shanghai 200433, China.,Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, Yanbian University, Yanji 133002, P. R. China
| | - Li-Min Zhao
- Engineering Center of Catalysis and Synthesis for Chiral Molecules, Department of Chemistry, Fudan University, Shanghai 200433, China.,Shanghai Engineering Center of Industrial Asymmetric Catalysis for Chiral Drugs, Shanghai 200433, China.,Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, Yanbian University, Yanji 133002, P. R. China
| | - Shuai Wang
- Engineering Center of Catalysis and Synthesis for Chiral Molecules, Department of Chemistry, Fudan University, Shanghai 200433, China.,Shanghai Engineering Center of Industrial Asymmetric Catalysis for Chiral Drugs, Shanghai 200433, China
| | - Wen-Juan Huang
- Engineering Center of Catalysis and Synthesis for Chiral Molecules, Department of Chemistry, Fudan University, Shanghai 200433, China.,Shanghai Engineering Center of Industrial Asymmetric Catalysis for Chiral Drugs, Shanghai 200433, China
| | - Yin-Xiang Zhang
- Engineering Center of Catalysis and Synthesis for Chiral Molecules, Department of Chemistry, Fudan University, Shanghai 200433, China.,Shanghai Engineering Center of Industrial Asymmetric Catalysis for Chiral Drugs, Shanghai 200433, China
| | | | - Erik De Clercq
- Rega Institute for Medical Research, KU Leuven, Herestraat 49, B-3000 Leuven, Belgium
| | - Fen-Er Chen
- Engineering Center of Catalysis and Synthesis for Chiral Molecules, Department of Chemistry, Fudan University, Shanghai 200433, China.,Shanghai Engineering Center of Industrial Asymmetric Catalysis for Chiral Drugs, Shanghai 200433, China.,Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, Yanbian University, Yanji 133002, P. R. China
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11
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Li XL, Cui JJ, Zheng WS, Zhang JL, Li R, Ma XL, Lin M, Guo HH, Li C, Yu XY, Du P, Zhao LM, He S, Lan P, Jiang JD, Che Y, Wang LL. Bicyclol Alleviates Atherosclerosis by Manipulating Gut Microbiota. Small 2022; 18:e2105021. [PMID: 35088527 DOI: 10.1002/smll.202105021] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 12/09/2021] [Indexed: 06/14/2023]
Abstract
Atherosclerosis (AS) is associated with high morbidity and mortality, thus imposing a growing burden on modern society. Herb-derived bicyclol (BIC) is a versatile bioactive compound that can be used to treat AS. However, its efficacy in AS is not yet described. Here, it is shown that BIC normalizes gut microflora dysbiosis induced by a high fat diet in Apoe(-/-) mice. Metagenome-wide association study analysis verifies that the modulation on carbohydrate-active enzymes and short-chain fatty acid generating genes in gut flora is among the mechanisms. The gut healthiness, especially the gut immunity and integrity, is restored by BIC intervention, leading to improved systemic immune cell dynamic and liver functions. Accordingly, the endothelial activation, macrophage infiltration, and cholesterol ester accumulation in the aortic arch are alleviated by BIC to lessen the plaque onset. Moreover, it is proved that the therapeutic effect of BIC on AS is transmissible by fecal microbiota transplantation. The current study, for the first time, demonstrates the antiatherosclerotic effects of BIC and shows that its therapeutic value can at least partially be attributed to its manipulation of gut microbiota.
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Affiliation(s)
- Xiao-Lin Li
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100050, China
| | - Jin-Jin Cui
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100050, China
| | - Wen-Sheng Zheng
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100050, China
| | - Jin-Lan Zhang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100050, China
| | - Rui Li
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100050, China
| | - Xiao-Lei Ma
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100050, China
| | - Miao Lin
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100050, China
| | - Hui-Hui Guo
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100050, China
| | - Cong Li
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100050, China
| | - Xiao-You Yu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100050, China
| | - Peng Du
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100050, China
| | - Li-Min Zhao
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100050, China
| | - Shuwang He
- College of Pharmacy, Shandong University, Beijing, 250012, China
| | - Pei Lan
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100050, China
| | - Jian-Dong Jiang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100050, China
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100050, China
| | - Yongsheng Che
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100050, China
| | - Lu-Lu Wang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100050, China
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100050, China
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12
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Zhao LM, Zhan ZL, Ning J, Qiu M. Network Meta-Analysis on the Effects of SGLT2 Inhibitors Versus Finerenone on Cardiorenal Outcomes in Patients With Type 2 Diabetes and Chronic Kidney Disease. Front Pharmacol 2022; 12:751496. [PMID: 35140602 PMCID: PMC8819058 DOI: 10.3389/fphar.2021.751496] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Accepted: 12/31/2021] [Indexed: 01/14/2023] Open
Affiliation(s)
- Li-Min Zhao
- Department of Endocrinology, Shenzhen Longhua District Central Hospital, Shenzhen, China
| | - Ze-Lin Zhan
- Clinical Medicine, The Second Clinical Medical College, Southern Medical University, Guangzhou, China
| | - Jie Ning
- Department of Endocrinology, Shenzhen Longhua District Central Hospital, Shenzhen, China
- *Correspondence: Jie Ning, ; Mei Qiu, , 0000-0001-5013-657X
| | - Mei Qiu
- Department of General Medicine, Shenzhen Longhua District Central Hospital, Shenzhen, China
- *Correspondence: Jie Ning, ; Mei Qiu, , 0000-0001-5013-657X
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13
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Zhang JL, Li YH, Wang LL, Liu HQ, Lu SY, Liu Y, Li K, Liu B, Li SY, Shao FM, Wang K, Sheng N, Li R, Cui JJ, Sun PC, Ma CX, Zhu B, Wang Z, Wan YH, Yu SS, Che Y, Wang CY, Wang C, Zhang Q, Zhao LM, Peng XZ, Cheng Z, Chang JB, Jiang JD. Azvudine is a thymus-homing anti-SARS-CoV-2 drug effective in treating COVID-19 patients. Signal Transduct Target Ther 2021; 6:414. [PMID: 34873151 PMCID: PMC8646019 DOI: 10.1038/s41392-021-00835-6] [Citation(s) in RCA: 79] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2021] [Revised: 10/31/2021] [Accepted: 11/14/2021] [Indexed: 01/08/2023] Open
Abstract
Azvudine (FNC) is a nucleoside analog that inhibits HIV-1 RNA-dependent RNA polymerase (RdRp). Recently, we discovered FNC an agent against SARS-CoV-2, and have taken it into Phase III trial for COVID-19 patients. FNC monophosphate analog inhibited SARS-CoV-2 and HCoV-OC43 coronavirus with an EC50 between 1.2 and 4.3 μM, depending on viruses or cells, and selective index (SI) in 15-83 range. Oral administration of FNC in rats revealed a substantial thymus-homing feature, with FNC triphosphate (the active form) concentrated in the thymus and peripheral blood mononuclear cells (PBMC). Treating SARS-CoV-2 infected rhesus macaques with FNC (0.07 mg/kg, qd, orally) reduced viral load, recuperated the thymus, improved lymphocyte profiles, alleviated inflammation and organ damage, and lessened ground-glass opacities in chest X-ray. Single-cell sequencing suggested the promotion of thymus function by FNC. A randomized, single-arm clinical trial of FNC on compassionate use (n = 31) showed that oral FNC (5 mg, qd) cured all COVID-19 patients, with 100% viral ribonucleic acid negative conversion in 3.29 ± 2.22 days (range: 1-9 days) and 100% hospital discharge rate in 9.00 ± 4.93 days (range: 2-25 days). The side-effect of FNC is minor and transient dizziness and nausea in 16.12% (5/31) patients. Thus, FNC might cure COVID-19 through its anti-SARS-CoV-2 activity concentrated in the thymus, followed by promoted immunity.
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Affiliation(s)
- Jin-Lan Zhang
- grid.506261.60000 0001 0706 7839State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100050 China
| | - Yu-Huan Li
- grid.506261.60000 0001 0706 7839Institute of Medicinal Biotechnology, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100050 China
| | - Lu-Lu Wang
- grid.506261.60000 0001 0706 7839State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100050 China ,grid.506261.60000 0001 0706 7839Institute of Medicinal Biotechnology, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100050 China
| | - Hong-Qi Liu
- grid.506261.60000 0001 0706 7839Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, Kunming, 650031 Yunnan China
| | - Shuai-Yao Lu
- grid.506261.60000 0001 0706 7839Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, Kunming, 650031 Yunnan China
| | - Yong Liu
- Genuine Biotech. Inc., Pingdingshan, 467000 Henan China
| | - Ke Li
- grid.506261.60000 0001 0706 7839Institute of Medicinal Biotechnology, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100050 China
| | - Bin Liu
- grid.413247.70000 0004 1808 0969Department of Respiratory Medicine, Zhongnan Hospital of Wuhan University, Wuhan Research Center for Infectious Diseases and Cancer, Wuhan, 430071 Hubei China
| | - Su-Yun Li
- grid.477982.70000 0004 7641 2271The First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, 450000 Henan China
| | - Feng-Min Shao
- grid.414011.10000 0004 1808 090XDepartment of Internal Medicine, Henan Provincial Peoples Hospital, Zhengzhou, 450003 Henan China
| | - Kun Wang
- grid.506261.60000 0001 0706 7839Institute of Medicinal Biotechnology, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100050 China
| | - Ning Sheng
- grid.506261.60000 0001 0706 7839State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100050 China
| | - Rui Li
- grid.506261.60000 0001 0706 7839State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100050 China
| | - Jin-Jin Cui
- grid.506261.60000 0001 0706 7839Institute of Medicinal Biotechnology, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100050 China
| | - Pei-Chun Sun
- grid.414011.10000 0004 1808 090XDepartment of Internal Medicine, Henan Provincial Peoples Hospital, Zhengzhou, 450003 Henan China
| | - Chun-Xia Ma
- grid.506261.60000 0001 0706 7839Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, Kunming, 650031 Yunnan China
| | - Bo Zhu
- grid.462338.80000 0004 0605 6769Henan Key Laboratory of Organic Functional Molecule and Drug Innovation, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, 453007 Henan China
| | - Zhe Wang
- grid.506261.60000 0001 0706 7839State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100050 China
| | - Yuan-Hao Wan
- Genuine Biotech. Inc., Pingdingshan, 467000 Henan China
| | - Shi-Shan Yu
- grid.506261.60000 0001 0706 7839State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100050 China
| | - Yongsheng Che
- grid.506261.60000 0001 0706 7839Institute of Medicinal Biotechnology, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100050 China
| | | | - Chen Wang
- grid.506261.60000 0001 0706 7839National Clinical Research Center for Respiratory Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100005 China
| | - Qiangqian Zhang
- grid.207374.50000 0001 2189 3846School of Chemistry, Zhengzhou University, Zhengzhou, 450001 Henan China
| | - Li-Min Zhao
- grid.506261.60000 0001 0706 7839State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100050 China
| | - Xiao-Zhong Peng
- Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, Kunming, 650031, Yunnan, China.
| | - Zhenshun Cheng
- Department of Respiratory Medicine, Zhongnan Hospital of Wuhan University, Wuhan Research Center for Infectious Diseases and Cancer, Wuhan, 430071, Hubei, China.
| | - Jun-Biao Chang
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, 453007, Henan, China. .,School of Chemistry, Zhengzhou University, Zhengzhou, 450001, Henan, China.
| | - Jian-Dong Jiang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100050, China. .,Institute of Medicinal Biotechnology, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100050, China.
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14
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Chang R, Liu SY, Zhao LM. Impact of demographic characteristics and antihyperglycemic and cardiovascular drugs on the cardiorenal benefits of SGLT2 inhibitors in patients with type 2 diabetes mellitus: A protocol for systematic review and meta-analysis. Medicine (Baltimore) 2021; 100:e27802. [PMID: 34964748 PMCID: PMC8615349 DOI: 10.1097/md.0000000000027802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Accepted: 10/26/2021] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND It is unclear whether demographic characteristics and baseline use of hypoglycemic and cardiovascular drugs significantly affect the efficacy of sodium-glucose transporter 2 (SGLT2) inhibitors on cardiorenal outcomes in patients with type 2 diabetes mellitus (T2DM). METHODS Randomized trials assessing the efficacy of SGLT2 inhibitors on cardiorenal outcomes in adult patients with T2DM were included in analysis. Three endpoints of interest were major adverse cardiovascular events (MACE), hospitalization for heart failure or cardiovascular death (HHF or CV death), and kidney composite outcome (KCO). We performed random-effects meta-analysis using the aggregate data of hazard ratios (HRs) and 95% confidence intervals (CIs). Subgroup analyses were done according to 17 factors of interest, including 7 factors related to demographic characteristics and 10 related to baseline use of antihyperglycemic and cardiovascular drugs such as renin-angiotensin system (RAS) inhibitor. We conducted meta-regression analyses to calculate P values for subgroup differences. RESULTS Seven trials were included in this meta-analysis. Compared with placebo, SGLT2 inhibitors significantly lowered the risk of MACE (HR 0.90, 95% CI 0.84-0.97) regardless of demographic characteristics and baseline use of insulin, statin or ezetimibe, RAS inhibitor, beta-blocker, and diuretic (Psubgroup from 0.088-0.981); that of HHF or CV death (HR 0.78, 95% CI 0.71-0.85) regardless of demographic characteristics and baseline use of 10 antihyperglycemic and cardiovascular drugs (Psubgroup from 0.147-0.999); and that of KCO (HR 0.63, 95% CI 0.57-0.69) regardless of demographic characteristics and baseline use of statin or ezetimibe, RAS inhibitor, and diuretic (Psubgroup from 0.073-0.918). CONCLUSIONS The cardiorenal benefits of SGLT2 inhibitors were consistent in a broad population of T2DM patients. The findings of this meta-analysis suggest that SGLT2 inhibitors should be recommended in T2DM patients for the prevention of cardiorenal events, regardless of various demographic characteristics and baseline use of various hypoglycemic and cardiovascular drugs.
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Affiliation(s)
- Rong Chang
- Cardiovascular Department, Shenzhen Longhua District Central Hospital, Shenzhen, China
| | - Shu-Yan Liu
- Department of Endocrinology, The Second Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Li-Min Zhao
- Department of General Medicine, Shenzhen Longhua District Central Hospital, Shenzhen, China
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15
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Zhao LM, Qiu M. Letter Regarding "Systematic Review of Cardiovascular Outcome Trials Using New Antidiabetic Agents in CKD Stratified by Estimated GFR". Kidney Int Rep 2021; 6:2934-2935. [PMID: 34805647 PMCID: PMC8589698 DOI: 10.1016/j.ekir.2021.09.014] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Accepted: 09/17/2021] [Indexed: 11/06/2022] Open
Affiliation(s)
- Li-Min Zhao
- Department of General Medicine, Shenzhen Longhua District Central Hospital, Shenzhen, China
| | - Mei Qiu
- Department of General Medicine, Shenzhen Longhua District Central Hospital, Shenzhen, China
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16
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Qiu M, Zhao LM. Commentary: Cardiovascular Outcome in Patients Treated With SGLT2 Inhibitors for Heart Failure: A Meta-Analysis. Front Cardiovasc Med 2021; 8:778284. [PMID: 34765660 PMCID: PMC8576193 DOI: 10.3389/fcvm.2021.778284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Accepted: 09/27/2021] [Indexed: 11/13/2022] Open
Affiliation(s)
- Mei Qiu
- Department of General Medicine, Shenzhen Longhua District Central Hospital, Shenzhen, China
| | - Li-Min Zhao
- Department of General Medicine, Shenzhen Longhua District Central Hospital, Shenzhen, China
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17
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Tao C, Zhao F, Tang ZW, Zhang L, Niu Q, Cao G, Zhao LM, Huang W, Zhao P. Bi2O3 gated Fe3O4@ZrO2 core/shell drug delivery system for chemo/ionic synergistic therapeutics. J SOLID STATE CHEM 2021. [DOI: 10.1016/j.jssc.2021.122489] [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: 12/12/2022]
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18
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Qiu M, Zhao LM. Long-term cardiorenal efficacy of finerenone in patients with chronic kidney disease and type 2 diabetes. Ann Palliat Med 2021; 10:11239-11241. [PMID: 34670379 DOI: 10.21037/apm-21-2590] [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] [Subscribe] [Scholar Register] [Received: 09/11/2021] [Accepted: 09/26/2021] [Indexed: 11/06/2022]
Affiliation(s)
- Mei Qiu
- Department of General Medicine, Shenzhen Longhua District Central Hospital, Shenzhen, China
| | - Li-Min Zhao
- Department of General Medicine, Shenzhen Longhua District Central Hospital, Shenzhen, China
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Zhao LM, Huang JN, Qiu M, Ding LL, Zhan ZL, Ning J. Gliflozins for the prevention of stroke in diabetes and cardiorenal diseases: A meta-analysis of cardiovascular outcome trials. Medicine (Baltimore) 2021; 100:e27362. [PMID: 34596148 PMCID: PMC8483857 DOI: 10.1097/md.0000000000027362] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Accepted: 09/10/2021] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND Individual randomized trials are not powered to assess the relationship between use of sodium-glucose transporter 2 inhibitors and risk of stroke. We sought to explore this issue by a meta-analysis incorporating relevant trials including several latest trials. METHODS Cardiovascular outcome trials of gliflozins were included. Primary outcome was stroke, while secondary outcome was major adverse cardiovascular events (MACE), which was a composite of stroke, myocardial infarction, or cardiovascular death. Meta-analysis was conducted stratified by with/without chronic kidney disease (CKD), with/without heart failure (HF), and with/without atherosclerotic cardiovascular disease (ASCVD), and stratified by different gliflozins. RESULTS We included 9 trials in this meta-analysis. Compared with placebo, gliflozins significantly lowered stroke (hazard ratio [HR] 0.68, 95% confidence interval [CI] 0.55-0.84) and MACE (HR 0.77, 95% CI 0.69-0.86) in type 2 diabetes (T2D) patients with CKD, but did not significantly affect stroke (HR 1.00, 95% CI 0.86-1.16) and MACE (HR 0.94, 95% CI 0.86-1.02) in T2D patients without CKD. Gliflozins had no significant effects on the stroke risk (HR 0.94, 95% CI 0.82-1.07) in T2D patients regardless of HF status (Psubgroup = .684) and ASCVD status (Psubgroup = .915), but significantly lowered MACE (HR 0.89, 95% CI 0.83-0.96) in T2D patients regardless of HF status (Psubgroup = .428) and ASCVD status (Psubgroup = .423). Canagliflozin (HR 0.84, 95% CI 0.69-1.01) showed the trend of a reduction in the stroke risk versus placebo, and sotagliflozin (HR 0.73, 95% CI 0.54-0.98) significantly lowered the stroke risk; whereas the other 3 gliflozins did not significantly affect that risk. Ertugliflozin (HR 0.97, 95% CI 0.85-1.11) had no significant effects on the MACE risk, whereas the other 4 gliflozins significantly lowered that risk. CONCLUSIONS Gliflozins, especially canagliflozin and sotagliflozin, should be recommended in T2D patients with CKD to prevent stroke. Most gliflozins lower the risk of MACE in T2D patients regardless of HF status and ASCVD status, whereas ertugliflozin is not observed to lower that risk.
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Affiliation(s)
- Li-Min Zhao
- Department of Endocrinology, Shenzhen Longhua District Central Hospital, Shenzhen, China
| | - Jia-Nan Huang
- Center of Community Health Service Management, Shenzhen Longhua District Central Hospital, Shenzhen, China
| | - Mei Qiu
- Center of Community Health Service Management, Shenzhen Longhua District Central Hospital, Shenzhen, China
| | - Liang-Liang Ding
- Department of Endocrinology, First Affiliated Hospital of Yangtze University, Jingzhou, China
| | - Ze-Lin Zhan
- Class 3, Clinical medicine, Grade 2019, The Second Clinical Medical College, Southern Medical University, Guangzhou, China
| | - Jie Ning
- Department of Endocrinology, Shenzhen Longhua District Central Hospital, Shenzhen, China
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Zhao P, Tang ZW, Lin HC, Djuanda D, Zhu Z, Niu Q, Zhao LM, Qian YN, Cao G, Shen JL, Fu B. VEGF aptamer/i-motif-based drug co-delivery system for combined chemotherapy and photodynamic therapy. Photodiagnosis Photodyn Ther 2021; 36:102547. [PMID: 34562647 DOI: 10.1016/j.pdpdt.2021.102547] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Revised: 09/20/2021] [Accepted: 09/20/2021] [Indexed: 01/01/2023]
Abstract
BACKGROUND Nucleic acids used as drug delivery systems (DDS) have gained attention because of their biosafety and effortless synthesis. G-quadruplex (G4) structured aptamer such as AS1411 was frequently employed to deliver photosensitizers or chemotherapeutic agents while other aptamers were seldomly reported in this field. METHODS Herein, a chemical anticancer drug daunomycin (DNM), and a photosensitizer 5, 10, 15, 20-tetra (phenyl-4-N-methyl-4-pyridyl) porphyrin (TMPyP) were physically assembled with a novel DNA structure composed of an aptamer of vascular endothelial growth factor (VEGF) and a cytosine (C)-rich DNA fragment (gc-34). Spectral and molecular mimicking methods were employed to research the drug loading/releasing process. The in vitro cytotoxicity was studied by MTT, ROS, cell cycle, and cell apoptotic assays and the in vivo anticancer efficiency was evaluated by the inhibitive effect on the cancerous growth of MCF-7 tumor-bearing nude mice. RESULTS The G4-structured VEGF aptamer delivered TMPyP successfully for the first time. The designed DDS displayed sensitive VEGF/pH controlled drug release. The co-delivery of DNM and TMPyP exhibited high ROS production, significant cell cycle arresting and evident cell apoptosis, and displayed superior cytotoxicity against tumor cells compared with individual agents in vitro. In vivo studies showed that the dual-drug loaded system can greatly inhibit tumor growth with chemotherapeutic/photodynamic synergistic effects. CONCLUSION The co-delivery of DNM and TMPyP with aptamer/C-rich DNA successfully integrates the functions of VEGF/pH stimuli-responsive drug release and chemotherapeutic/phototherapeutic modalities into one single system, and may have great potential in cancer treatment.
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Affiliation(s)
- Ping Zhao
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Education Mega Centre, No. 280, Waihuandong Road, Guangzhou 510006, PR China.
| | - Zi-Wei Tang
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Education Mega Centre, No. 280, Waihuandong Road, Guangzhou 510006, PR China
| | - Hui-Chao Lin
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Education Mega Centre, No. 280, Waihuandong Road, Guangzhou 510006, PR China
| | - David Djuanda
- School of Ophthalmology & Optometry, School of Biomedical Engineering, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Zhaowei Zhu
- School of Ophthalmology & Optometry, School of Biomedical Engineering, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Qiang Niu
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Education Mega Centre, No. 280, Waihuandong Road, Guangzhou 510006, PR China; Department of plastic surgery, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, P. R. China
| | - Li-Min Zhao
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Education Mega Centre, No. 280, Waihuandong Road, Guangzhou 510006, PR China
| | - Yu-Na Qian
- Department of plastic surgery, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, P. R. China
| | - Gao Cao
- Department of plastic surgery, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, P. R. China
| | - Jian-Liang Shen
- Department of plastic surgery, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, P. R. China.
| | - Bo Fu
- College of Health Industry, Zhongshan Torch Polytechnic, No. 7 Xingye Road, Zhongshan 528436, Guangdong, China.
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21
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Li N, Hou R, Zhao LM, Gu G, Hou SY. [Expression of melanoma-associated antigen-C2 in breast cancers and mechanism]. Zhonghua Zhong Liu Za Zhi 2021; 43:821-826. [PMID: 34407585 DOI: 10.3760/cma.j.cn112152-20200116-00043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze the expression pattern, mechanism and clinical significance of melanoma-associated antigen-C2 (MAGE-C2) in tumor-free breast specimens, breast benign disease specimens and breast cancer specimens. Methods: Reverse transcription-polymerase chain reaction (RT-PCR) and immunohistochemistry were used to investigate the expressions of MAGE-C2 in 60 tumor-free breast specimens, 60 breast benign disease specimens and 60 breast cancer specimens. The correlation of MAGE-C2 expression with clinicopathological parameters and prognosis of breast cancer patients were analyzed. The expression of MAGE-C2 was also detected by RT-PCR in breast cancer cell MCF-7 and MDA-MB-231 treated with DNA methylase inhibitor 5-aza-2'-deoxycytidine (5-aza-CdR) and histone deacetylase inhibitor trichostatin A (TSA). Results: The positive expression rates of MAGE-C2 mRNA and protein were 61.7% (37/60) and 58.3% (35/60) in breast cancer specimens, respectively, while negative expressed in breast and begin disease specimens. MAGE-C2 protein expression was associated with tumor grade, histological type and blood vessel invasion of breast cancer patients (P<0.05). The incidence of recurrence-free survival of patients with positive MAGE-C2 expression were lower than that of patients with negative MAGE-C2 expression (P<0.05). Multivariate Cox regression analysis showed that the clinical stage (P<0.01), lymph node metastasis (P<0.05) and MAGE-C2 expression (P<0.05) were the independent prognostic factors of breast cancer patients. The MAGE-C2 mRNA was not observed in the control and TSA treated breast cancer cells while upregulated in the 5-aza-CdR treated cells. Besides, 5-aza-CdR combined with TSA further enhanced MAGE-C2 mRNA level in breast cancer cells (P<0.05). Conclusions: MAGE-C2 is one of the tumor-specific antigen and its expression is related with the poor prognosis of breast cancer patients. DNA methylation and histone acetylation may be an important regulation mechanism of MAGE-C2 gene expression.
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Affiliation(s)
- N Li
- Department of Oncology, the Third Hospital of Hebei Medical University, Shijiazhuang 050051, China
| | - R Hou
- Department of Oncology, the Fourth Hospital of Hebei Medical University, Shijiazhuang 050019, China
| | - L M Zhao
- Department of Research Center, the Fourth Hospital of Hebei Medical University, Shijiazhuang 050019, China
| | - G Gu
- Department of Rheumatology and Immunology, the Third Hospital of Hebei Medical University, Shijiazhuang 050051, China
| | - S Y Hou
- Department of Rheumatology and Immunology, the Third Hospital of Hebei Medical University, Shijiazhuang 050051, China
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22
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Zhai YM, Jiang XW, Zhang TH, Chang L, Zhao LM, Yang L, Weng W, Liu LG. [Quantitative analysis of myelofibrosis and its prognostic significance in patients with myelodysplastic syndrome]. Zhonghua Yi Xue Za Zhi 2021; 101:2460-2464. [PMID: 34399560 DOI: 10.3760/cma.j.cn112137-20201124-03183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To quantitatively analyze the reticulin fiber intensity density (RFD) in patients with myelodysplastic syndrome (MDS) by using the computer-aided grid point method, and preliminarily explore its correlation with the prognosis of MDS patients. Methods: Bone marrow (BM) slices from 32 primary MDS patients treated in Tongren Hospital Shanghai Jiao Tong University School of Medicine from February 2017 to December 2019 were observed. Images were taken by the optical microscope imaging system after the Gomori staining. The computer grid marking software was developed according to the principle of the mesh micrometer to assess RFD, meanwhile, the artificial semi-quantitative were used to assess the fibrosis of bone marrow. The co-relation between the above two methods was evaluated, and the relationship between RFD and prognosis of MDS patients were further investigated with Cox regression analysis. Results: Of the patients, there were 17 males and 15 females with a median age of 69 years (32-91 years). The RFD quantitatively analyzed by the computer-based method was positively correlated with the myelofibrosis grade by the artificial semi-quantitative analysis (r=0.497, P=0.004). The RFD in patients diagnosed with MDS complicated with excess blasts (MDS-EB) was significantly higher than that in the non-MDS-EB group((9.55%±0.75%) vs (1.71%±0.23%), P<0.001). Cox regression model analysis showed that the RFD of MDS patients had better prognostic value when compared with the artificial semi-quantitative analysis, which was also a poor prognostic factor (RR=1.337, 95%CI: 1.085-1.648, P=0.006). The overall survival (OS) of patients with RFD>5.54% was significantly shorter than that with RFD≤5.54% (P=0.001). The OS of MDS-EB patients with RFD>9.81% was significantly shorter than that in patients with RFD≤9.81% (P=0.003). Conclusion: Abnormal proliferative fibrosis of bone marrow is a potential high-risk factor for poor prognosis of MDS patients.
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Affiliation(s)
- Y M Zhai
- Department of Hematology, Tongren Hospital Shanghai Jiao Tong University School of Medicine, Shanghai 200336, China
| | - X W Jiang
- Department of Hematology, Tongren Hospital Shanghai Jiao Tong University School of Medicine, Shanghai 200336, China
| | - T H Zhang
- Department of Hematology, Tongren Hospital Shanghai Jiao Tong University School of Medicine, Shanghai 200336, China
| | - L Chang
- Department of Hematology, Tongren Hospital Shanghai Jiao Tong University School of Medicine, Shanghai 200336, China
| | - L M Zhao
- Department of Hematology, Tongren Hospital Shanghai Jiao Tong University School of Medicine, Shanghai 200336, China
| | - L Yang
- Department of Hematology, Tongren Hospital Shanghai Jiao Tong University School of Medicine, Shanghai 200336, China
| | - W Weng
- Department of Hematology, Tongren Hospital Shanghai Jiao Tong University School of Medicine, Shanghai 200336, China
| | - L G Liu
- Department of Hematology, Tongren Hospital Shanghai Jiao Tong University School of Medicine, Shanghai 200336, China
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Zhu H, Zhu M, Lei JH, Xiao YL, Zhao LM. Metagenomic Next-Generation Sequencing Can Clinch Diagnosis of Non-Tuberculous Mycobacterial Infections: A Case Report. Front Med (Lausanne) 2021; 8:679755. [PMID: 34381797 PMCID: PMC8350026 DOI: 10.3389/fmed.2021.679755] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Accepted: 06/30/2021] [Indexed: 11/13/2022] Open
Abstract
Non-tuberculou Mycobacteria (NTM) is ubiquitous in the environment and is conditional pathogen. Due to NTM and Mycobacterium tuberculosis belong to the genus Mycobacterium, their pathogenic mechanisms and clinical manifestations are similar. Therefore, NTM can cause tuberculosis-like lesions and lead to misdiagnosis. Early diagnosis and treatment greatly improve prognosis. However, traditional pathogenic microorganism detection has limitations, and it is difficult to accurately identify strains in clinical practice. Here, we report a 65-year-old man with NTM who presented with recurrent fever and cough. Computed tomography of the chest revealed a lung infection. The previous improper diagnosis and treatment did not improve his condition. With the aid of metagenomic next-generation sequencing, the pathogen was identified as Mycobacterium avium complex. Subsequently, he received accurate treatment and made significant improvements in clinical and radiology.
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Affiliation(s)
- He Zhu
- Department of Respiratory and Critical Care Medicine, People's Hospital of Zhengzhou University, Henan Provincial People's Hospital, Zhengzhou, China
| | - Min Zhu
- Department of Respiratory and Critical Care Medicine, Henan Provincial People's Hospital, Zhengzhou, China
| | - Jia-Hui Lei
- Department of Respiratory and Critical Care Medicine, People's Hospital of Zhengzhou University, Henan Provincial People's Hospital, Zhengzhou, China
| | - Ya-Li Xiao
- Department of Respiratory and Critical Care Medicine, People's Hospital of Zhengzhou University, Henan Provincial People's Hospital, Zhengzhou, China
| | - Li-Min Zhao
- Department of Respiratory and Critical Care Medicine, People's Hospital of Zhengzhou University, Henan Provincial People's Hospital, Zhengzhou, China.,Department of Respiratory and Critical Care Medicine, Henan Provincial People's Hospital, Zhengzhou, China
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Zhao LM, Guo FY, Wang HM, Dou T, Da Qi J, Xu WB, Piao L, Jin X, Chen FE, Piao HR, Zheng CJ, Jin CH. Synthesis and Evaluation of Chiral Rhodanine Derivatives Bearing Quinoxalinyl Imidazole Moiety as ALK5 Inhibitors. Med Chem 2021; 18:509-520. [PMID: 34182915 DOI: 10.2174/1573406417666210628144849] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 03/16/2021] [Accepted: 04/25/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND TGF-β signaling pathway inhibition is considered an effective way to prevent the development of several diseases. In the design and synthesis of TGF-β inhibitors, a rhodanine compound containing a quinoxalinyl imidazole moiety was found to have strong antimicrobial activity. OBJECTIVE The purpose of this work was to investigate the antimicrobial activity of other chiral rhodanine TGF-β inhibitors synthesized. METHODS Two series of 3-substituted-5-((5-(6-methylpyridin-2-yl)-4-(quinoxalinyl-6-yl)- 1H-imidazol-2-yl)methylene)-2-thioxothiazolin-4-ones (12a-h and 13a-e) were synthesized and evaluated for their ALK5 inhibitory and antimicrobial activity. The structures were confirmed by their 1H NMR, 13C NMR, and HRMS spectra. All the synthesized compounds were screened against Gram-positive strains, Gram-negative strains, and fungi. RESULTS Among the synthesized compounds, compound 12h showed the highest activity (IC50 = 0.416 μM) against ALK5 kinase. Compound 12h exhibited a good selectivity index of > 24 against p38α MAP kinase and was 6.0-fold more selective than the clinical candidate, compound 2 (LY-2157299). Nearly all the compounds displayed high selectivity toward both Gram-positive and Gram-negative bacteria. They also showed similar or 2.0-fold greater antifungal activity (minimum inhibitory concentration [MIC] = 0.5 µg/mL) compared with the positive control compounds Gatifloxacin (MIC = 0.5 µg/mL) and fluconazole (MIC = 1 µg/mL). CONCLUSION The findings suggest that the synthesized rhodanine compounds have good ALK5 inhibitory activity and can be used for further research and development as potential antifungal drugs.
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Affiliation(s)
- Li-Min Zhao
- Molecular Medicine Research Center, College of Phamacy, Yanbian University, Yanji 133002, China
| | - Fang Yan Guo
- Molecular Medicine Research Center, College of Phamacy, Yanbian University, Yanji 133002, China
| | - Hui Min Wang
- Molecular Medicine Research Center, College of Phamacy, Yanbian University, Yanji 133002, China
| | - Tong Dou
- Molecular Medicine Research Center, College of Phamacy, Yanbian University, Yanji 133002, China
| | - Jun Da Qi
- Molecular Medicine Research Center, College of Phamacy, Yanbian University, Yanji 133002, China
| | - Wen Bo Xu
- Molecular Medicine Research Center, College of Phamacy, Yanbian University, Yanji 133002, China
| | - Lianxun Piao
- Molecular Medicine Research Center, College of Phamacy, Yanbian University, Yanji 133002, China
| | - Xuejun Jin
- Molecular Medicine Research Center, College of Phamacy, Yanbian University, Yanji 133002, China
| | - Fen-Er Chen
- Department of Chemistry, Fudan University, Shanghai 200433, China
| | - Hu-Ri Piao
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, Yanbian University, Yanji 133002, China
| | - Chang Ji Zheng
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, Yanbian University, Yanji 133002, China
| | - Cheng Hua Jin
- Molecular Medicine Research Center, College of Phamacy, Yanbian University, Yanji 133002, China
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Zhao LM, Zhang M, Zhan ZL, Qiu M. Does Combination Therapy With SGLT2 Inhibitors and Renin-Angiotensin System Blockers Lead to Greater Reduction in Cardiorenal Events Among Patients With Type 2 Diabetes? Front Cardiovasc Med 2021; 8:679124. [PMID: 34026878 PMCID: PMC8131654 DOI: 10.3389/fcvm.2021.679124] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 03/29/2021] [Indexed: 01/14/2023] Open
Affiliation(s)
- Li-Min Zhao
- Department of Endocrinology, Shenzhen Longhua District Central Hospital, Shenzhen, China
| | - Miao Zhang
- Department of Nephrology, Shenzhen Hospital of Beijing University of Chinese Medicine, Shenzhen, China
| | - Ze-Lin Zhan
- Class 3, Clinical Medicine, Grade 2019, The Second Clinical Medical College, Southern Medical University, Guangzhou, China
| | - Mei Qiu
- Department of General Medicine, Shenzhen Longhua District Central Hospital, Shenzhen, China
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Zhao LM, Ding LL, Zhan ZL, Qiu M. SGLT2 inhibitors should be recommended in patients with one or more of the three diseases: type 2 diabetes, chronic kidney disease, and HFrEF. Eur J Intern Med 2021; 87:102-103. [PMID: 33722440 DOI: 10.1016/j.ejim.2021.03.001] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 02/26/2021] [Accepted: 03/01/2021] [Indexed: 10/21/2022]
Affiliation(s)
- Li-Min Zhao
- Department of Endocrinology, Shenzhen Longhua District Central Hospital, Shenzhen 518110, China
| | - Liang-Liang Ding
- Department of Endocrinology, First Affiliated Hospital of Yangtze University, Jingzhou 434000, China
| | - Ze-Lin Zhan
- Class 3, Clinical medicine, Grade 2019, The Second Clinical Medical College, Southern Medical University, China
| | - Mei Qiu
- Department of General Medicine, Shenzhen Longhua District Central Hospital, Shenzhen 518110, China.
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Hu X, Ma J, Zhao LM, Guo J, Tang DY. Collision between soliton and polarization domain walls in fiber lasers. Opt Express 2021; 29:12590-12598. [PMID: 33985013 DOI: 10.1364/oe.423030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Accepted: 04/01/2021] [Indexed: 06/12/2023]
Abstract
We report on the experimental observation of coexistence of solitons and polarization domains, as well as features of soliton collision with polarization domain walls (or kink solitons) in a single mode fiber laser. Depending on the sign of cavity dispersion, either bright or dark solitons have been formed in our fiber laser. Under suitable laser operation conditions, they could even coexist with polarization domains and collide with the domain walls. We show experimental evidence of both the elastic and inelastic soliton collisions with the domain wall solitons. Some interesting features of soliton interaction with polarization domains in a fiber laser are also firstly revealed.
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Hu X, Guo J, Zhao LM, Ma J, Tang DY. Dark-bright soliton trapping in a fiber laser. Opt Lett 2021; 46:1105-1108. [PMID: 33649668 DOI: 10.1364/ol.420012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Accepted: 01/29/2021] [Indexed: 06/12/2023]
Abstract
We report, to the best of our knowledge, the first experimental observation of coexistence of scalar dark and bright solitons in a fiber laser operating in the near zero-dispersion regime. We show that because of the incoherent cross coupling, under suitable conditions a bright soliton formed in the net anomalous cavity dispersion regime could bind with a dark soliton formed in the net normal cavity dispersion regime in a fiber laser. The properties of the dark and bright solitons, as well as their bound states, are experimentally investigated. The numerical simulations based on the coupled Ginzburg-Landau equations have reproduced the experimental results well.
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Qiu M, Zhao LM, Zhan ZL. Comprehensive Analysis of Adverse Events Associated With SGLT2is: A Meta-Analysis Involving Nine Large Randomized Trials. Front Endocrinol (Lausanne) 2021; 12:743807. [PMID: 34925229 PMCID: PMC8675241 DOI: 10.3389/fendo.2021.743807] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Accepted: 11/15/2021] [Indexed: 12/19/2022] Open
Abstract
Recently, Lin and colleagues assessed the safety of sodium-glucose cotransporter 2 inhibitors (SGLT2is) by a meta-analysis [1], in which the authors assessed 16 kinds of adverse events (AE) reported in the published articles based on 10 randomized controlled trials. We conducted a further meta-analysis and targeted the association between use of SGLT2is and occurrences of various kinds of serious AE published in the Clinical Trials website (clinicaltrials.gov). Our meta-analysis revealed that use of SGLT2is was not significantly associated with occurrences of 980 kinds of serious AE but was significantly associated with lower risks of 29 kinds of serious AE, especially including several important respiratory diseases (e.g., asthma, chronic obstructive pulmonary disease, sleep apnoea syndrome, and pneumonia). These findings may cause more studies to evaluate the possibilities of gliflozins being used for prevention of these specific diseases.
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Affiliation(s)
- Mei Qiu
- Department of General Medicine, Shenzhen Longhua District Central Hospital, Shenzhen, China
| | - Li-Min Zhao
- Department of General Medicine, Shenzhen Longhua District Central Hospital, Shenzhen, China
| | - Ze-Lin Zhan
- Class 3, Clinical Medicine, Grade 2019, The Second Clinical Medical College, Southern Medical University, Guangzhou, China
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Zhao LM, Zhan ZL, Qiu M. Effects of SGLT2 inhibitors on cardiovascular death and all-cause death in patients with type 2 diabetes and chronic kidney disease: an updated meta-analysis including the SCORED trial. Ther Adv Endocrinol Metab 2021; 12:20420188211044945. [PMID: 34589202 PMCID: PMC8474301 DOI: 10.1177/20420188211044945] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Accepted: 08/06/2021] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND The effects of sodium-glucose transporter 2 (SGLT2) inhibitors on cardiovascular death (CV death) and all-cause death (AC death) in patients with type 2 diabetes (T2D) and chronic kidney disease (CKD) are currently under intensive investigation. We intended to conduct an updated meta-analysis including the SCORED trial to evaluate the effects of SGLT2 inhibitors on death and cardiorenal events in this vulnerable population. METHODS Cardiorenal outcome trials of SGLT2 inhibitors were included. Primary outcomes were CV death and AC death, while secondary outcomes were hospitalization for heart failure (HHF), myocardial infarction (MI), CKD progression, cardiovascular death or hospitalization for heart failure (CV death or HHF), major adverse cardiovascular events (MACE), and stroke. Meta-analysis was conducted for each outcome. RESULTS Eight trials were included for meta-analysis. Compared with placebo, SGLT2 inhibitors significantly lowered the risk of CV death (HR = 0.86, 95% CI = 0.75-0.98), AC death (HR = 0.87, 95% CI = 0.79-0.96), HHF (HR = 0.64, 95% CI = 0.56-0.74), MI (HR = 0.76, 95% CI = 0.65-0.89), CKD progression (HR = 0.62, 95% CI = 0.54-0.72), and CV death or HHF (HR = 0.73, 95% CI = 0.67-0.80). No heterogeneity existed in the above meta-analyses (all I2 values = 0%), whereas moderate heterogeneity existed in the meta-analyses for MACE and stroke (I2 = 31.6% and 44.5%, respectively). CONCLUSIONS Our findings suggest that SGLT2 inhibitors versus placebo significantly lower death, heart failure, renal failure, and MI events in patients with T2D and CKD. Head-to-head trials are needed to examine the possible differences in the effects of various gliflozins on MACE and stroke.
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Affiliation(s)
- Li-Min Zhao
- Department of Endocrinology, Shenzhen Longhua District
Central Hospital, Shenzhen, China
| | - Ze-Lin Zhan
- Class 3, Clinical medicine, Grade 2019, The Second
Clinical Medical College, Southern Medical University, Guangzhou, China
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Zhao LM, Chen XH, Qiu M. Commentary: Mortality Risk of Antidiabetic Agents for Type 2 Diabetes With COVID-19: A Systematic Review and Meta-Analysis. Front Endocrinol (Lausanne) 2021; 12:825100. [PMID: 35082762 PMCID: PMC8785330 DOI: 10.3389/fendo.2021.825100] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 12/15/2021] [Indexed: 12/02/2022] Open
Affiliation(s)
- Li-Min Zhao
- Department of Geriatric Medicine, Shenzhen Longhua District Central Hospital, Shenzhen, China
| | - Xie-Hui Chen
- Department of Geriatric Medicine, Shenzhen Longhua District Central Hospital, Shenzhen, China
- *Correspondence: Xie-Hui Chen, ; Mei Qiu,
| | - Mei Qiu
- Department of General Medicine, Shenzhen Longhua District Central Hospital, Shenzhen, China
- *Correspondence: Xie-Hui Chen, ; Mei Qiu,
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Hu X, Guo J, Zhao LM, Ma J, Tang DY. Coherently coupled vector black solitons in a quasi-isotropic cavity fiber laser. Opt Lett 2020; 45:6563-6566. [PMID: 33258862 DOI: 10.1364/ol.410830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Accepted: 10/31/2020] [Indexed: 06/12/2023]
Abstract
We report the first experimental observation of coherently coupled black-black solitons in a quasi-isotropic cavity fiber laser with normal cavity dispersion. The properties of the vector solitons accord well with the theoretical predictions based on the coherently coupled nonlinear Schrödinger equations. Numerical studies and experimental results clearly confirmed the existence of the highly robust vector black solitons in the fiber laser system.
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Wang YF, Ding BJ, Li MH, Baek SG, Wallace GM, Liu L, Zhao LM, Wang M, Wu ZG, Liu FK, Shan JF, Zhang XJ, Li YC, Wu CB. Diagnostic development for parallel wave-number measurement of lower hybrid waves in EAST. Rev Sci Instrum 2020; 91:073502. [PMID: 32752822 DOI: 10.1063/1.5144673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Accepted: 06/22/2020] [Indexed: 06/11/2023]
Abstract
An eight-channel magnetic probe diagnostic system has been designed and installed adjacent to the 4.6 GHz lower hybrid (LH) grill antenna in the low-field side of the Experimental Advanced Superconducting Tokamak (EAST) in order to study the n∥ evolution of LH waves in the first pass from the launcher to the core plasma. The magnetic probes are separated by 6.6 mm, which allows measurement of the dominant parallel refractive index n∥ up to n∥ = 5 for 4.6 GHz LH waves. The magnetic probes are designed to be sensitive to the magnetic field component perpendicular to the background magnetic field with a slit on the casing that encloses the probe. The intermediate frequency stage, which consists of two mixing stages, down-coverts the frequency of the measured wave signals at 4.6 GHz to 20 MHz. A bench test demonstrates the phase stability of the magnetic probe diagnostic system. By evaluating the phase variation of the measured signals along the background magnetic field, the dominant n∥ of the LH wave in the scrape-off layer has been deduced during the 2019 experimental campaign. In the low density plasma, the measured dominant n∥ of the LH waves is about 2.1, corresponding to the main peak 2.04 of the launched n∥ spectrum. n∥ deduced by the least-squares linear fit method remains near this value in the low density plasma with a high spatial correlation magnitude of 0.9. With an eight-channel probe system, a wave-number spectrum has also been deduced, which has a peak near to the measured dominant n∥.
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Affiliation(s)
- Y F Wang
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China
| | - B J Ding
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China
| | - M H Li
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China
| | - S G Baek
- MIT Plasma Science and Fusion Center, Cambridge, Massachusetts 02139, USA
| | - G M Wallace
- MIT Plasma Science and Fusion Center, Cambridge, Massachusetts 02139, USA
| | - L Liu
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China
| | - L M Zhao
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China
| | - M Wang
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China
| | - Z G Wu
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China
| | - F K Liu
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China
| | - J F Shan
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China
| | - X J Zhang
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China
| | - Y C Li
- College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
| | - C B Wu
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China
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Li YW, Li XY, Li S, Zhao LM, Ma J, Piao HR, Jiang Z, Jin CH, Jin X. Synthesis and evaluation of the HIF-1α inhibitory activity of 3(5)-substituted-4-(quinolin-4-yl)- and 4-(2-phenylpyridin-4-yl)pyrazoles as inhibitors of ALK5. Bioorg Med Chem Lett 2019; 30:126822. [PMID: 31810777 DOI: 10.1016/j.bmcl.2019.126822] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Revised: 10/03/2019] [Accepted: 11/10/2019] [Indexed: 12/27/2022]
Abstract
The transcription factor hypoxia-inducible factor-1α (HIF-1α) plays an important role in apoptosis, metastasis, and proliferation and is recognized as an important potential therapeutic target for cancer. Six series of 3(5)-(6-methylpyridin-2-yl)-4-(quinolin-4-yl)pyrazoles (11a-d, 12a-d, and 18a-d) and 3(5)-(6-methylpyridin-2-yl)-4-(2-phenyl-pyridin-4-yl)pyrazoles (19a-d, 20a-d, and 21a-d) were synthesized and evaluated for activin receptor-like kinase 5 (ALK5) and HIF-1α inhibitory activity at the enzyme and cell levels. The effect of the lead compound 20d (J-1012) on HIF-1α activation in HCT116 cells was investigated. J-1012 markedly decreased the hypoxia-induced or TNF-induced accumulation of HIF-1α protein dose-dependently. Analysis revealed that J-1012 inhibited HIF-1α protein synthesis, without affecting the degradation of HIF-1α protein. Furthermore, by inhibiting the activation of HIF-1α, J-1012 suppressed the metastasis and proliferation and promoted apoptosis of HCT116 cells. These results suggest that J-1012 may be a potential therapeutic agent against human colon cancer.
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Affiliation(s)
- Yan-Wei Li
- Key Laboratory of Natural Resources of Changbai Mountain and Functional Molecules, Ministry of Education, Molecular Medicine Research Center, College of Pharmacy, Yanbian University, Yanji 133002, PR China; Pharmacy Intravenous Admixture Services, Yanbian University Hospital, Yanji 133000, PR China
| | - Xiang-Yu Li
- Key Laboratory of Natural Resources of Changbai Mountain and Functional Molecules, Ministry of Education, Molecular Medicine Research Center, College of Pharmacy, Yanbian University, Yanji 133002, PR China
| | - Shanji Li
- The School of Public Health, Jilin Medical University, Jilin 132013, PR China
| | - Li-Min Zhao
- Key Laboratory of Natural Resources of Changbai Mountain and Functional Molecules, Ministry of Education, Molecular Medicine Research Center, College of Pharmacy, Yanbian University, Yanji 133002, PR China
| | - Juan Ma
- Key Laboratory of Natural Resources of Changbai Mountain and Functional Molecules, Ministry of Education, Molecular Medicine Research Center, College of Pharmacy, Yanbian University, Yanji 133002, PR China
| | - Hu-Ri Piao
- Key Laboratory of Natural Resources of Changbai Mountain and Functional Molecules, Ministry of Education, Molecular Medicine Research Center, College of Pharmacy, Yanbian University, Yanji 133002, PR China
| | - Zhe Jiang
- Pharmacy Intravenous Admixture Services, Yanbian University Hospital, Yanji 133000, PR China.
| | - Cheng Hua Jin
- Key Laboratory of Natural Resources of Changbai Mountain and Functional Molecules, Ministry of Education, Molecular Medicine Research Center, College of Pharmacy, Yanbian University, Yanji 133002, PR China.
| | - Xuejun Jin
- Key Laboratory of Natural Resources of Changbai Mountain and Functional Molecules, Ministry of Education, Molecular Medicine Research Center, College of Pharmacy, Yanbian University, Yanji 133002, PR China.
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Zou JS, Wang YW, Han RR, Yuan KX, Zhao LM. [Acoustic response characteristics of posterior intralaminar nucleus of auditory thalamus in mice]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2019; 54:670-675. [PMID: 31550758 DOI: 10.3760/cma.j.issn.1673-0860.2019.09.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To study the response characteristics of the posterior intralaminar nucleus (PIN) of auditory thalamus in VGluT2-Cre transgenic adult mice when exposed to white noise and 10K pure tone stimulation. Methods: All adult male Vglut2-Cre mice (8-12 weeks) were used in this study between Oct, 2017 and Oct, 2018. Using the calcium signal fiber photometry method, optic fiber was employed to locate on PIN by injecting AAV-hSyn-DIO-GCaMP6m virus, and thereafter, the activity of the target cluster neurons during different acoustic stimuli was recorded. Matlab was used for data processing and statistical analysis. Results: (1)In both white noise and 10 kHz pure tone as a continuous three-second stimulation, the peak amplitude of calcium signal activity generated in PIN by white noise was superior to that of pure tone, the statistic result showed significantly difference (n=6, t=2.404, P=0.037 1) . (2)In addition, when white noise and 10K pure tone played as consecutive 3 or 5 pips within three-second stimulation, the stimulus-following ability in a consecutive 3 pulses play within 3 seconds was far better than a consecutive 5 pips play within 3 seconds (in both white noise and 10 kHz pure tone), yet consecutive 3 pips play showed greater signal attenuation speed than that in consecutive 5 pips play, the statistic result showed significantly difference (n=6, t=2.748 P=0.033 4) .(3)Regardless of the intra-group comparisons between white noise and 10 kHz pure tone stimulation, PIN showed better signal response in a consecutive 3 pips play than consecutive 5 pips play or a continuous three-second stimulation. When came to the statistical analysis, the acoustic response degree of a continuous three-second stimulation was an intermediate between two others, both consecutive 3 or 5 pips play showed significantly difference. Conclusions: The results suggest that under the same acoustic intensity, VGluT2-Cre transgenic adult mice's PIN shows greater signal response in white noise than pure tone. PIN shows greater signal attenuation to repetition play of 10 kHz pure tone, which implies PIN shows stronger adaptation to 10 kHz pure tone than to white noise. Lastly, PIN is more responsive to a complex sound information (white noise) than to simple sound information (pure tone).
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Affiliation(s)
- J S Zou
- Clinical Medical College, Weifang Medical University, Weifang 261053, China
| | - Y W Wang
- Department of Biomedical Engineering, Tsinghua University, Beijing 100084, China
| | - R R Han
- Department of Otorhinolaryngology, Weifang People's Hospital, Weifang 261000, China
| | - K X Yuan
- Department of Biomedical Engineering, Tsinghua University, Beijing 100084, China
| | - L M Zhao
- Department of Otorhinolaryngology, Affiliated Hospital of Weifang Medical University, Weifang 261031, China
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Zhao LM, Jiang H, Hong K, Lin HC, Tang WH, Liu DF, Mao JM, Zhang Z, Lin SL, Ma LL. [Analysis of intratesticular condition in micro-dissection testicular sperm extraction era]. Beijing Da Xue Xue Bao Yi Xue Ban 2019; 51:632-635. [PMID: 31420613 DOI: 10.19723/j.issn.1671-167x.2019.04.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To summarizes the intratesticular condition of azoospermia patients, to understand azoospermia more intuitively, and improve the ability of clinical doctors to predict the success rate of microsperm extraction in azoospermia patients. METHODS Azoospermia patients (excluding Klinefelter's syndrome) who underwent a micro-TESE during January 2014 and January 2018 in a single center were enrolled. The types of seminiferous tubules were summarized, and the clinical characteristics of different types of seminiferous tubules compared with the success rates of sperm extraction. In this study, 472 cases of non-obstructive azoospermia (excluding Klinefelter's syndrome) were analyzed by SPSS 21.0 software package. Relevant data were expressed by median(minimum,maximum).t-test was used to compare the difference of success rate of sperm extraction between each group and the group with the lowest rate (a type). RESULTS The 472 patients with non-obstructive azoospermia underwent micro-TESE. The mean age of the patients was 31 (23, 46) years, the mean testicular size was 10 (1, 20) mL, the mean FSH was 15.4 (1.21, 68.4) IU/L, the mean T was 8.34 (0.69, 30.2) nmol/L, and totally 202 patients achieved success in micro-TESE (42.7%, 202/472). According to the seminiferous tubules seen during the operation, they were divided into the following six types: Class a, seminiferous tubules developed well and uniformly; Class b, seminiferous tubules developed well, occasionally slightly thick; Class c, seminiferous tubules were generally thin; Class d, seminiferous tubules basically atrophied, occasionally well-developed seminiferous tubules; Class e, all seminiferous tubules atrophied; Class f, seminiferous tubules were infiltrated by yellow substances. The success rate of micro-TESE varied greatly among different types of the patients. A total of 78 patients with type a were 29 (24, 40) years old, FSH 11.1 (1.21, 15.8) IU/L, T 10.2 (3.29, 26.5) nmol/L), and testicular size 12 (12, 20) mL. The successful rate of sperm extraction was 6.41%; 82 patients with type b were 31 (23, 42) years old, FSH 13.8 (3.23, 19.6) IU/L, T 9.44 (3.58, 30.2) nmol/L), and testicular size 12(8,15) mL. The successful rate of sperm extraction was 74.39%; There were 162 patients in group c, aged 31 (25, 40), FSH 19.6 (9.28, 26.6) IU/L, T 8.75 (5.66, 18.6) nmol/L, and testicular size 8 (5, 12) mL. The successful rate of sperm extraction was 45.06%. There were 36 patients in group d, aged 25 (23,38) years and FSH 28.5 (19.3, 45.6) IU/L, T 6.52 (2.12, 9.83) nmol/L, and testicular size 5 (3, 8) mL, and the success rate of sperm extraction was 94.44%. 26 patients with type e were 28(23, 46) years old, FSH 31.3 (18.5, 68.4) IU/L, T 6.72 (0.69, 18.2) nmol/L, and testicular size 5 (1, 8) mL. The success rate of sperm extraction was 45.38%. 88 patients with type f were 29 (24, 38) years old, FSH 18.5 (5.23, 31.6) IU / L, T 8.32 (3.58, 16.5) nmol/L, and testicular size 12 (6, 20) mL. The success rate of sperm extraction was 28.41%. CONCLUSION The success rate of micro-TESE in different types of seminiferous tubules in testis can be helpful to the judgement of the surgeon during the operation.
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Affiliation(s)
- L M Zhao
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - H Jiang
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - K Hong
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - H C Lin
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - W H Tang
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - D F Liu
- Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100191, China
| | - J M Mao
- Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100191, China
| | - Z Zhang
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - S L Lin
- Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100191, China
| | - L L Ma
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
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Tan XD, Kang XB, Zhao LM, Zhang JJ, Hao HS. Quantum dissonance in chiral graphene nanoribbons. J Phys Condens Matter 2019; 31:205602. [PMID: 30763919 DOI: 10.1088/1361-648x/ab071c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Based on the effective spin-ladder model, we study the properties of quantum dissonance (Q) between two edge spins in chiral graphene nanoribbons (CGNRs) thermalized with a reservoir at temperature T, and discuss the influences of relative location between two edge spins, ribbon width, temperature, and on-site Coulomb repulsion (U) on Q. The results show that Q is widely present in Wannier edge states. For intra-edge coupled spin pairs, quantum entanglement (E) is zero, but there still exists considerable value of Q. Interestingly, Q always keeps a constant for entangled edge spin pairs. Considering the thermal effect, it shows that Q always decays with the increasing temperature T, and the decay rate is very sensitive to the intensity of U. Compared Q with E and total quantum correlation (quantum discord, denoted by D), we conjecture that the quantum correlations for a bipartite Wannier edge state in CGNRs satisfy the relation Q ⩽ D-E.
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Affiliation(s)
- Xiao-Dong Tan
- School of Science, Henan Institute of Engineering, Zhengzhou 451191, People's Republic of China
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Ma J, Shao GD, Song YF, Zhao LM, Xiang YJ, Shen DY, Richardson M, Tang DY. Observation of dark-bright vector solitons in fiber lasers. Opt Lett 2019; 44:2185-2188. [PMID: 31042179 DOI: 10.1364/ol.44.002185] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Accepted: 03/25/2019] [Indexed: 06/09/2023]
Abstract
We report the experimental observation of coherently coupled dark-bright vector solitons in single mode fiber lasers with either normal or anomalous cavity dispersion. The properties of these vector solitons were found to agree well with theoretical predictions based on the coherently coupled nonlinear Schrödinger equations. The experimental results clearly confirmed the existence of a fundamentally new form of optical solitons in coupled nonlinear systems.
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Zhao LM, Guo Z, Xue YJ, Min JZ, Zhu WJ, Li XY, Piao HR, Jin CH. Synthesis and Evaluation of 3-Substituted-4-(quinoxalin-6-yl) Pyrazoles as TGF-β Type I Receptor Kinase Inhibitors. Molecules 2018; 23:molecules23123369. [PMID: 30572609 PMCID: PMC6320941 DOI: 10.3390/molecules23123369] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2018] [Revised: 12/13/2018] [Accepted: 12/17/2018] [Indexed: 12/30/2022] Open
Abstract
The transforming growth factor-β (TGF-β), in which overexpression has been associated with various diseases, has become an attractive molecular target for the treatment of cancers. Thirty-two quinoxaline-derivatives of 3-substituted-4-(quinoxalin-6-yl) pyrazoles 14a–d, 15a–d, 16a–d, 17a–d, 18a–d, 19a–d, 25a, 25b, 25d, 26a, 26b, 26d, 27b, and 27d were synthesized and evaluated for their activin TGF-β type I receptor kinase and p38α mitogen activated protein (MAP) kinase inhibitory activity in enzymatic assays. Among these compounds, the most active compound 19b inhibited TGF-β type I receptor kinase phosphorylation with an IC50 value of 0.28 µM, with 98% inhibition at 10 µM. Compound 19b also had good selectivity index of >35 against p38α MAP kinase, with 9.0-fold more selective than clinical candidate, compound 3 (LY-2157299). A molecular docking study was performed to identify the mechanism of action of the synthesized compounds and their good binding interactions were observed. ADMET prediction of good active compounds showed that these ones possess good pharmacokinetics and drug-likeness behavior.
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Affiliation(s)
- Li-Min Zhao
- College of Pharmacy, Yanbian University, 977 Gongyuan Road, Yanji 133002, China.
| | - Zhen Guo
- College of Pharmacy, Yanbian University, 977 Gongyuan Road, Yanji 133002, China.
| | - Yi-Jie Xue
- College of Pharmacy, Yanbian University, 977 Gongyuan Road, Yanji 133002, China.
| | - Jun Zhe Min
- College of Pharmacy, Yanbian University, 977 Gongyuan Road, Yanji 133002, China.
| | - Wen-Jing Zhu
- College of Pharmacy, Yanbian University, 977 Gongyuan Road, Yanji 133002, China.
| | - Xiang-Yu Li
- College of Pharmacy, Yanbian University, 977 Gongyuan Road, Yanji 133002, China.
| | - Hu-Ri Piao
- College of Pharmacy, Yanbian University, 977 Gongyuan Road, Yanji 133002, China.
| | - Cheng Hua Jin
- College of Pharmacy, Yanbian University, 977 Gongyuan Road, Yanji 133002, China.
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Mao JM, Liu DF, Zhao LM, Hong K, Zhang L, Ma LL, Jiang H, Qiao J. [Effect of testicular puncture biopsy on the success rate of microdissection testicular sperm extraction for idiopathic non-obstructive azoospermia]. Beijing Da Xue Xue Bao Yi Xue Ban 2018; 50:613-616. [PMID: 30122758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
OBJECTIVE To explore the predictive effect of testicular puncture biopsy and the biopsy results on the success rate of microdissection testicular sperm extraction (micro-TESE) in patients with idiopathic non-obstructive azoospermia. METHODS We retrospectively evaluated the micro-TESE performance in patients with idiopathic non-obstructive azoospermia (NOA) referred to the Reproductive Medicine Center of Peking University Third Hospital between January 2012 and August 2017. We discussed whether to take the testicular biopsy and testicular biopsy results, including the intraoperative microscopic examination and postoperative pathology findings, could predict the success rate of the late micro-TESE. RESULTS There were 237 patients who were diagnosed as idiopathic NOA and received micro-TESE involved in the study and the total sperm retrieve rate was 25.7%. In 103 patients without testicular biopsy and 134 patients with preoperative testicular biopsy, the sperm retrieve rate was 26.2% and 25.4%, respectively. And there was no significant difference between the two groups. The testicular volume and serum follicle stimulating hormone levels of the two groups were (4.3±1.4) mL vs.(8.5±2.4) mL and (36.1±5.2) IU/L vs.(26.1±3.5) IU/L, respectively. Compared to the patients with preoperative testicular biopsy, the group of patients without testicular biopsy had a much smaller test volume and higher serum follicle stimulating hormone and the difference between the two groups was statistically significant. For the patients who were found with a small amount of sperm in both intraoperative microscopic examination and postoperative pathological examination, the sperm retrieve rate was 100% (7/7). And for the patients who were only found with sperm in intraoperative microscopic examination or postoperative pathology examination, the sperm retrieve rate (SRR) was 47.2% (17/36). For the patients who could be not found with sperm in both intraoperative microscopic examination and postoperative pathological examination, the SRR was only 11% (10/91). The difference between the groups was statistically significant. CONCLUSION Idiopathic non-obstructive azoospermia patients with smaller testicular volume still have a chance to be found with sperm by micro-TESE. The testicular biopsy results, including intraoperative microscopic examination and postoperative pathological findings, have predictive effect on the SRR for late micro-TESE. The patient who could not be found with sperm in both intraoperative microscopic examination and postoperative pathological examination have a small chance of success in micro-TESE.
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Affiliation(s)
- J M Mao
- Reproductive Medicine Center, Peking University Third Hospital, Beijing 100191, China
| | - D F Liu
- Reproductive Medicine Center, Peking University Third Hospital, Beijing 100191, China
| | - L M Zhao
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - K Hong
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - L Zhang
- Reproductive Medicine Center, Peking University Third Hospital, Beijing 100191, China
| | - L L Ma
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - H Jiang
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - J Qiao
- Reproductive Medicine Center, Peking University Third Hospital, Beijing 100191, China
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Zhu SN, Wu ZC, Fu SN, Zhao LM. Manipulation of group-velocity-locked vector dissipative solitons and properties of the generated high-order vector soliton structure. Appl Opt 2018; 57:2064-2068. [PMID: 29603994 DOI: 10.1364/ao.57.002064] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Accepted: 02/16/2018] [Indexed: 06/08/2023]
Abstract
Details of various composites of the projections originated from a fundamental group-velocity-locked vector dissipative soliton (GVLVDS) are both experimentally and numerically explored. By combining the projections from the orthogonal polarization components of the GVLVDS, a high-order vector soliton structure with a double-humped pulse profile along one polarization and a single-humped pulse profile along the orthogonal polarization can be observed. Moreover, by de-chirping the composite double-humped pulse, the time separation between the two humps is reduced from 15.36 ps to 1.28 ps, indicating that the frequency chirp of the GVLVDS contributes significantly to the shaping of the double-humped pulse profile.
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Zhang XY, Tang XY, Ma LJ, Guo YL, Li XS, Zhao LM, Tian CJ, Cheng DJ, Chen ZC, Zhang LX. Schisandrin B down-regulated lncRNA BCYRN1 expression of airway smooth muscle cells by improving miR-150 expression to inhibit the proliferation and migration of ASMC in asthmatic rats. Cell Prolif 2017; 50. [PMID: 28960519 DOI: 10.1111/cpr.12382] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Accepted: 07/13/2017] [Indexed: 01/01/2023] Open
Abstract
OBJECTIVE The mechanism of Schisandrin B on the proliferation and migration of airway smooth muscle cells (ASMCs) in asthmatic rats was explored. METHODS SD rats were divided into three groups: control (group 1), model (group 2) and model + Schisandrin B (group 3). miR-150 and lncRNA BCYRN1 levels were measured by qRT-PCR. The combination of BCYRN1 and miR-150 was detected by RNA pull down. ASMCs' viability/proliferation/migration were examined by WST-1 assay and 24-well Transwell system. RESULTS Schisandrin B up-regulated miR-150 expression and down-regulated BCYRN1 expression in sensitized rats. Schisandrin B reversed the expression of miR-150 and BCYRN1 in MV-treated ASMCs. In addition, Schisandrin B inhibited the viability, proliferation and migration of MV-induced ASMCs. We also found miR-150 inhibited BCYRN1 expression which was proved by experiments using ASMCs transfected with miR-150 inhibitor. CONCLUSION Schisandrin B increased miR-150 expression and decreased BCYRN1, and BCYRN1 expression was inhibited by miR-150, which indicated that Schisandrin B could regulate BCYRN1 through miR-150.
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Affiliation(s)
- Xiao-Yu Zhang
- Department of Respiratory Medicine, People's Hospital Affiliated to Zhengzhou University, Zhengzhou, China
| | - Xue-Yi Tang
- Department of Respiratory Medicine, People's Hospital Affiliated to Zhengzhou University, Zhengzhou, China
| | - Li-Jun Ma
- Department of Respiratory Medicine, People's Hospital Affiliated to Zhengzhou University, Zhengzhou, China
| | - Ya-Li Guo
- Department of Respiratory Medicine, People's Hospital Affiliated to Zhengzhou University, Zhengzhou, China
| | - Xiao-Su Li
- Department of Respiratory Medicine, People's Hospital Affiliated to Zhengzhou University, Zhengzhou, China
| | - Li-Min Zhao
- Department of Respiratory Medicine, People's Hospital Affiliated to Zhengzhou University, Zhengzhou, China
| | - Cui-Jie Tian
- Department of Respiratory Medicine, People's Hospital Affiliated to Zhengzhou University, Zhengzhou, China
| | - Dong-Jun Cheng
- Department of Respiratory Medicine, People's Hospital Affiliated to Zhengzhou University, Zhengzhou, China
| | - Zhuo-Chang Chen
- Department of Respiratory Medicine, People's Hospital Affiliated to Zhengzhou University, Zhengzhou, China
| | - Luo-Xian Zhang
- Department of Respiratory Medicine, People's Hospital Affiliated to Zhengzhou University, Zhengzhou, China
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Zhang XY, Ma LJ, Guo YL, Gao S, Zhao LM, Li XS, Tang XY, Cheng DJ, Zhang LX, Chen ZC. [Effect of BCYRN1 on proliferation and migration of airway smooth muscle cells in rat model of asthma]. Zhonghua Yi Xue Za Zhi 2017; 96:3751-3756. [PMID: 27998434 DOI: 10.3760/cma.j.issn.0376-2491.2016.46.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To detect the effect of brain cytoplasmic RNA 1 (BCYRN1) on the proliferation and migration of airway smooth muscle cells (ASMCs) in rat model of asthma. Methods: Male SD rats were randomly divided into control group and asthma group (n=10 each). The ovalbumin (OVA) model was constructed in asthma group. Real time-qPCR was performed to detect the level of BCYRN1 in the ASMCs separated from the airway tissue of these rats. Then 2-(4-iodophenyl)-3-(4-nitrophenyl)-5-(2, 4-disulfophenyl)-2H-tetrazolium (WST-1) assay, roche real-time cell analyzer assay and Transwell cell migration assay were performed to detect the viability/proliferation and migration of ASMCs which were transfected with Ad-BCYRN1.Platelet-derived growth factor (PDGF)-BB was used to treat ASMCs to induce proliferation and migration, and the level of BCYRN1 was examined.The viability/proliferation and migration of ASMCs treated with PDGF-BB and transfected with si-BCYRN1 were detected. Inspiratory resistance and expiratory resistance were measured in rats with BCYRN1 knockdown.Briefly, rats were randomly divided into four groups: control (group A), sensitization + Ad-GFP (group B), sensitization + AdSM22α-siBCYRN1 (group C), control + Ad-SM22α-siBCYRN1 (group D) (n=10 each). The corresponding adenovirus vectors were sent to lung of group B, group C and group D through nasal spray. The OVA model was constructed in group B and group C. The rats in group A and group D were treated with saline.After 24 h of the last treatment with OVA or saline, rats of each group were given tracheal intubation, connected with breathing machine. Rats were injected with methacholine to measure the inspiratory resistance and expiratory resistance. Results: The level of BCYRN1 in ASMCs separated from rats in asthma group and in ASMCs treated with PDGF-BB was 3.60±0.45 and 3.53±0.35, respectively, significantly higher than those of the corresponding control (both P<0.01). Ad-BCYRN1 significantly increased the expression of BCYRN1 in ASMCs. The cell viability and proliferation rates of ASMCs transfected with Ad-BCYRN1 increased 1.75-and 1.47-fold compared to those of the control group, respectively (P<0.01); mobility increased 2.42-fold compared to that of the control group (all P<0.01). BCYRN1 knockdown reversed the increasing proliferation and migration of ASMCs induced by PDGF-BB. The cell proliferation rate and cell migration number in the PDGF-BB treatment group were (4.87±0.21)% and 80.00±5.00, respectively, which were significant higher than those in the si-BCYRN1 transfected group ((3.63±0.21)% and 25.33±2.52, all P<0.01). BCYRN1 knockdown reduced the inspiratory resistance and expiratory resistance in sensitization + Ad-SM22α-siBCYRN1 group. When the concentration of acetylcholine reached 1 mg/kg, the inspiratory resistance in the group A, group B, group C, and group D were 8.27±0.21, 25.40±0.56, 12.07±0.67 and 8.40±0.46 cmH2O·s·ml-1, and expiratory resistance were 13.30±0.56, 38.37±1.33, 16.40±0.56 and 13.40±0.46 cmH2O·s·ml-1, respectively (all P<0.01). Conclusion: Overexpression of BCYRN1 promotes the proliferation and migration of ASMCs in rat model of asthma.
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Affiliation(s)
- X Y Zhang
- Department of Respiratory Medicine, People's Hospital Affiliated to Zhengzhou University, Zhengzhou 450003, China
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Li WP, Xu HM, Zhao LM, Li XY. [The arc-shaped flap plasty in the treatment of webbed neck: one case report]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2017; 52:616-618. [PMID: 28822418 DOI: 10.3760/cma.j.issn.1673-0860.2017.08.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- W P Li
- Department of Otorhinolaryngology Head and Neck Surgery, Shanghai Children's Hospital, Shanghai Jiao Tong University; Shanghai 200062, China
| | - H M Xu
- Department of Otorhinolaryngology Head and Neck Surgery, Shanghai Children's Hospital, Shanghai Jiao Tong University; Shanghai 200062, China
| | - L M Zhao
- Department of Otorhinolaryngology Head and Neck Surgery, Shanghai Children's Hospital, Shanghai Jiao Tong University; Shanghai 200062, China
| | - X Y Li
- Department of Otorhinolaryngology Head and Neck Surgery, Shanghai Children's Hospital, Shanghai Jiao Tong University; Shanghai 200062, China
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Wang C, Wang CY, Ma LL, Zhang Y, Zhao LM, Gao CJ, Hou XM. [The analysis of systemic concomitant disease in sudden deafness patients]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2017; 31:85-87. [PMID: 29871192 DOI: 10.13201/j.issn.1001-1781.2017.02.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Indexed: 11/12/2022]
Abstract
Objective:To investigate the clinical characteristics of patients with underlying disease in sudden deafness.Method:One hundred and seventy-three inpatients suffered from sudden deafness were included in this study. We analyzed the underlying disease of these patients retrospectively.Result:The underlying disease of sudden deafness patients mainly include atherosclerosis risk factors (hypertension, diabetes, hyperlipemia, hyperhomocystinemia, hyperuricemia) 79.8%, cervical vertebra disease 26.6%, ear disease 19.1%, thyroid disease 13.9%.Conclusion:The characteristics of underlying disease may plays a crucial role in pathogenesis and treatment in sudden deafness patients.
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Affiliation(s)
- C Wang
- Department of Hyperbaric Oxygen, Beijing Chaoyang Hospital, Capital Medical University, Beijing, 100020, China
| | - C Y Wang
- Department of Otolaryngology Head and Neck Surgery, Beijing Chaoyang Hospital, Capital Medical University
| | - L L Ma
- Department of Hyperbaric Oxygen, Beijing Chaoyang Hospital, Capital Medical University, Beijing, 100020, China
| | - Y Zhang
- Department of Hyperbaric Oxygen, Beijing Chaoyang Hospital, Capital Medical University, Beijing, 100020, China
| | - L M Zhao
- Department of Hyperbaric Oxygen, Beijing Chaoyang Hospital, Capital Medical University, Beijing, 100020, China
| | - C J Gao
- Department of Hyperbaric Oxygen, Beijing Chaoyang Hospital, Capital Medical University, Beijing, 100020, China
| | - X M Hou
- Department of Hyperbaric Oxygen, Beijing Chaoyang Hospital, Capital Medical University, Beijing, 100020, China
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Zhao LM, Pang AX. Iodine-131 treatment of thyroid cancer cells leads to suppression of cell proliferation followed by induction of cell apoptosis and cell cycle arrest by regulation of B-cell translocation gene 2-mediated JNK/NF-κB pathways. ACTA ACUST UNITED AC 2017; 50:e5933. [PMID: 28099584 PMCID: PMC5264532 DOI: 10.1590/1414-431x20165933] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2016] [Accepted: 11/07/2016] [Indexed: 11/22/2022]
Abstract
Iodine-131 (131I) is widely used for the treatment of thyroid-related
diseases. This study aimed to investigate the expression of p53 and
BTG2 genes following 131I therapy in thyroid cancer
cell line SW579 and the possible underlying mechanism. SW579 human thyroid squamous
carcinoma cells were cultured and treated with 131I. They were then
assessed for 131I uptake, cell viability, apoptosis, cell cycle arrest,
p53 expression, and BTG2 gene expression. SW579 cells were
transfected with BTG2 siRNA, p53 siRNA and siNC and were then examined for the same
aforementioned parameters. When treated with a JNK inhibitor of SP600125 and
131I or with a NF-κB inhibitor of BMS-345541 and 131I,
non-transfected SW579 cells were assessed in JNK/NFκB pathways. It was observed that
131I significantly inhibited cell proliferation, promoted cell
apoptosis and cell cycle arrest. Both BTG2 and p53 expression were enhanced in a
dose-dependent manner. An increase in cell viability by up-regulation in
Bcl2 gene, a decrease in apoptosis by enhanced
CDK2 gene expression and a decrease in cell cycle arrest at
G0/G1 phase were also observed in SW579 cell lines
transfected with silenced BTG2 gene. When treated with SP600125 and
131I, the non-transfected SW579 cell lines significantly inhibited JNK
pathway, NF-κB pathway and the expression of BTG2. However, when treated with
BMS-345541 and 131I, only the NF-κB pathway was suppressed.
131I suppressed cell proliferation, induced cell apoptosis, and promoted
cell cycle arrest of thyroid cancer cells by up-regulating B-cell translocation gene
2-mediated activation of JNK/NF-κB pathways.
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Affiliation(s)
- L M Zhao
- Department of Nuclear Medicine, Linyi People's Hospital, Linyi, China
| | - A X Pang
- Department of Urology, Linyi People's Hospital, Linyi, China
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Zhao LM, Jiang H, Hong K, Lin HC, Tang WH, Liu DF, Mao JM, Lian Y, Ma LL. [Outcome of treatment of Y chromosome AZFc microdeletion patients]. Beijing Da Xue Xue Bao Yi Xue Ban 2016; 48:607-611. [PMID: 29263498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
OBJECTIVE To discuss the treatment options for patients with azoospermia factor (AZF) c microdeletion on Y chromosome. METHODS One hundred and eighty three patients, who were diagnosed as AZFc microdeletion on Y chromosome in Peking University Third Hospital, were recruited in our study. In order to get better treatment option for this kind of patients, we retrospectively analyzed their clinic data including the treatment process and pregnancy outcome and found out the characteristics of their semen. RESULTS Among the 183 patients, sperms can be found in ejaculated semen in 105 patients (57.4%, 105/183). One hundred and three patients (98.1%, 103/105) were diagnosed as severe or extremely severe oligospermia. Regular medication was given to 98 patients, 6 patients (6.1%, 6/98) of which got natural pregnancy. The other 99 patients who have sperms in their semen received intracytoplasmic sperm injection (ICSI), 68 patients (68.7%, 68/99) of which got pregnancy. Seventy eight patients were diagnosed as azoospermia among all the 183 patients. Forty nine patients received testicular sperm aspiration (TESA), and 21 patients choose to receive micro-TESE directly. Among the 49 patients with TESA, sperms were retrieved in 17 patients (34.7%, 17/49), and sperms were not retrieved in 32 patients (65.3%, 32/49), of which 12 patients (37.5%, 12/32) gave up treatment and 20 patients (62.5%, 20/32) choose micro-TESE. Among the 41 patients who choose to receive micro-TESE, operation has been done on 19 patients, of which 11 patients (57.9%, 11/19) got sperms. Among the 11 patients, TESA has been done on 6 patients before micro-TESE, of which 4 patients (66.6%, 4/6) got sperms. ICSI has already been done on 7 azoospermia AZFc microdeletion patients who underwent micro-TESE, of which 4 patients (57.1%, 4/7) get pregnancy. CONCLUSION AZFc microdeletion patients who had sperms were always diagnosed as severe or extremely severe oligospermia. ICSI was their first choice instead of drug therapy. For AZFc microdeletion patients who were diagnosed as azoospermia, TESA was one of their choices, however, the success rate is not high. Micro-TESE is still possible to get sperms even after the failure of TESA. Therefore, we may choose micro-TESE instead of TESA in some azoospermia patients in order to reduce surgical trauma on patients.
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Affiliation(s)
- L M Zhao
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - H Jiang
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - K Hong
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - H C Lin
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - W H Tang
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - D F Liu
- Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100191, China
| | - J M Mao
- Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100191, China
| | - Y Lian
- Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100191, China
| | - L L Ma
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
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Zhang XY, Zhang LX, Tian CJ, Tang XY, Zhao LM, Guo YL, Cheng DJ, Chen XL, Ma LJ, Chen ZC. LncRNAs BCYRN1 promoted the proliferation and migration of rat airway smooth muscle cells in asthma via upregulating the expression of transient receptor potential 1. Am J Transl Res 2016; 8:3409-3418. [PMID: 27648131 PMCID: PMC5009393] [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: 11/24/2015] [Accepted: 04/03/2016] [Indexed: 06/06/2023]
Abstract
BACKGROUND Long noncoding RNAs (lncRNAs) played important roles in several biological processes through regulating the expression of protein. However, the function of lncRNA BCYRN1 in airway smooth muscle cells (ASMCs) has not been reported. METHODS Male Sprague-Dawley (SD) rats were divided into control and asthma groups and the ovalbumin (OVA) model was constructed. The expression of BCYRN1 and transient receptor potential 1 (TRPC1) were detected in the ASMCs separated from these rats. Then 2-(4-iodophenyl)-3-(4-nitrophenyl)-5-(2,4-disulfophenyl)-2H-tetrazolium (WST-1) assay, Roche real-time cell analyzer (RTCA) DP assay and Transwell cell migration assay were performed to detect the effect of BCYRN1 on the viability/proliferation and migration of ASMCs. RNA pull-down assays and RNA immunoprecipitation assay were used to identify and verify the binding between BCYRN1 and TRPC1. Inspiratory resistance and expiratory resistance were measured in OVA challenged rats with BCYRN1 knockdown. RESULTS We foundthe high expression of BCYRN1 and TRPC1 in asthma groups and ASMCs treated with PDGF-BB. Overexpression of BCYRN1 greatly promoted the proliferation and migration of ASMCs. In addition,TRPC1 overexpression reversed the function of si-BCYRN1 indecreasing the viability/proliferation and migration of ASMCs treated with PDGF-BB. BCYRN1 could up-regulate the protein level of TRPC1 through increasing the stability of TRPC1. Finally, we found that BCYRN1 knockdown reduced the inspiratory resistance and expiratory resistance in OVA challenged rats. CONCLUSION Our study indicated that BCYRN1 promotedthe proliferation and migration of rat ASMCs in asthma via upregulating the expression of TRPC1.
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Affiliation(s)
- Xiao-Yu Zhang
- Department of Respiratory Medicine, People's Hospital Affiliated to Zhengzhou University Zhengzhou 450003, People's Republic of China
| | - Luo-Xian Zhang
- Department of Respiratory Medicine, People's Hospital Affiliated to Zhengzhou University Zhengzhou 450003, People's Republic of China
| | - Cui-Jie Tian
- Department of Respiratory Medicine, People's Hospital Affiliated to Zhengzhou University Zhengzhou 450003, People's Republic of China
| | - Xue-Yi Tang
- Department of Respiratory Medicine, People's Hospital Affiliated to Zhengzhou University Zhengzhou 450003, People's Republic of China
| | - Li-Min Zhao
- Department of Respiratory Medicine, People's Hospital Affiliated to Zhengzhou University Zhengzhou 450003, People's Republic of China
| | - Ya-Li Guo
- Department of Respiratory Medicine, People's Hospital Affiliated to Zhengzhou University Zhengzhou 450003, People's Republic of China
| | - Dong-Jun Cheng
- Department of Respiratory Medicine, People's Hospital Affiliated to Zhengzhou University Zhengzhou 450003, People's Republic of China
| | - Xian-Liang Chen
- Department of Respiratory Medicine, People's Hospital Affiliated to Zhengzhou University Zhengzhou 450003, People's Republic of China
| | - Li-Jun Ma
- Department of Respiratory Medicine, People's Hospital Affiliated to Zhengzhou University Zhengzhou 450003, People's Republic of China
| | - Zhuo-Chang Chen
- Department of Respiratory Medicine, People's Hospital Affiliated to Zhengzhou University Zhengzhou 450003, People's Republic of China
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Zhang XY, Zhang LX, Guo YL, Zhao LM, Tang XY, Tian CJ, Cheng DJ, Chen XL, Ma LJ, Chen ZC. Schisandrin B inhibits the proliferation of airway smooth muscle cells via microRNA-135a suppressing the expression of transient receptor potential channel 1. Cell Biol Int 2016; 40:742-9. [PMID: 26916957 DOI: 10.1002/cbin.10597] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2015] [Accepted: 02/21/2016] [Indexed: 12/29/2022]
Abstract
Airway smooth muscle cell (ASMC) was known to involve in the pathophysiology of asthma. Schisandrin B was reported to have anti-asthmatic effects in a murine asthma model. However, the molecular mechanism involving in the effect of Schisandrin B on ASMCs remains poorly understood. Sprague-Dawley rats were divided into three groups: rats as the control (Group 1), sensitized rats (Group 2), sensitized rats and intragastric-administrated Schisandrin B (Group 3). The expression of miR-135a and TRPC1 was detected in the rats from three groups. Platelet-derived growth factor (PDGF)-BB was used to induce the proliferation of isolated ASMCs, and the expression of miR-135a and TRPC1 was detected in PDGF-BB-treated ASMCs. Cell viability was examined in ASMCs transfected with miR-135a inhibitor or si-TRPC1. The expression of TRPC1 was examined in A10 cells pretreated with miR-135a inhibitor or miR-135a mimic. In this study, we found that Schisandrin B attenuated the inspiratory and expiratory resistances in sensitized rats. Schisandrin B upregulated the mRNA level of miR-135a and decreased the expression of TRPC1 in sensitized rats. In addition, Schisandrin B reversed the expression of miR-135a and TRPC1 in PDGF-BB-induced ASMCs. Si-TRPC1 abrogated the increasing proliferation of ASMCs induced by miR-135a inhibitor. We also found that miR-135a regulated the expression of TRPC1 in the A10 cells. These results demonstrate that Schisandrin B inhibits the proliferation of ASMCs via miR-135a suppressing the expression of TRPC1.
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Affiliation(s)
- Xiao-Yu Zhang
- Department of Respiratory Medicine, People's Hospital Affiliated to Zhengzhou University, 7 Weiwu Rd., Zhengzhou, 450003, China
| | - Luo-Xian Zhang
- Department of Respiratory Medicine, People's Hospital Affiliated to Zhengzhou University, 7 Weiwu Rd., Zhengzhou, 450003, China
| | - Ya-Li Guo
- Department of Respiratory Medicine, People's Hospital Affiliated to Zhengzhou University, 7 Weiwu Rd., Zhengzhou, 450003, China
| | - Li-Min Zhao
- Department of Respiratory Medicine, People's Hospital Affiliated to Zhengzhou University, 7 Weiwu Rd., Zhengzhou, 450003, China
| | - Xue-Yi Tang
- Department of Respiratory Medicine, People's Hospital Affiliated to Zhengzhou University, 7 Weiwu Rd., Zhengzhou, 450003, China
| | - Cui-Jie Tian
- Department of Respiratory Medicine, People's Hospital Affiliated to Zhengzhou University, 7 Weiwu Rd., Zhengzhou, 450003, China
| | - Dong-Jun Cheng
- Department of Respiratory Medicine, People's Hospital Affiliated to Zhengzhou University, 7 Weiwu Rd., Zhengzhou, 450003, China
| | - Xian-Liang Chen
- Department of Respiratory Medicine, People's Hospital Affiliated to Zhengzhou University, 7 Weiwu Rd., Zhengzhou, 450003, China
| | - Li-Jun Ma
- Department of Respiratory Medicine, People's Hospital Affiliated to Zhengzhou University, 7 Weiwu Rd., Zhengzhou, 450003, China
| | - Zhuo-Chang Chen
- Department of Respiratory Medicine, People's Hospital Affiliated to Zhengzhou University, 7 Weiwu Rd., Zhengzhou, 450003, China
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Jiang L, Sun LY, Pan XD, Chen PP, Tang L, Wang W, Zhao LM, Yang SW, Wang LY. Characterization of the unique Chinese W483X mutation in the low-density lipoprotein–receptor gene in young patients with homozygous familial hypercholesterolemia. J Clin Lipidol 2016; 10:538-546.e5. [DOI: 10.1016/j.jacl.2015.12.016] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Revised: 12/05/2015] [Accepted: 12/16/2015] [Indexed: 12/22/2022]
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