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Xu SL, Chen Z, Yang J, Fan ZQ, Liu T, Zhang XT, Zeng BQ, Xing XQ. [Effect of SHP-1 knockout in airway epithelial cells on emphysema phenotype in chronic obstructive pulmonary disease in mice]. Zhonghua Jie He He Hu Xi Za Zhi 2024; 47:339-345. [PMID: 38599809 DOI: 10.3760/cma.j.cn112147-20231114-00309] [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: 04/12/2024]
Abstract
Objective: To construct and characterize conditional Src homology region 2 protein tyrosine phosphatase 1 (SHP-1) knockout mice in airway epithelial cells and to observe the effect of defective SHP-1 expression in airway epithelial cells on the emphysema phenotype in chronic obstructive pulmonary disease (COPD). Methods: To detect the expression of SHP-1 in the airway epithelium of COPD patients. CRISPR/Cas9 technology was used to construct SHP-1flox/flox transgenic mice, which were mated with airway epithelial Clara protein 10-cyclase recombinase and estrogen receptor fusion transgenic mice (CC10-CreER+/+), and after intraperitoneal injection of tamoxifen, airway epithelial SHP-1 knockout mice were obtained (SHP-1flox/floxCC10-CreER+/-, SHP-1Δ/Δ). Mouse tail and lung tissue DNA was extracted and PCR amplified to discriminate the genotype of the mice; the knockout effect of SHP-1 gene in airway epithelial cells was verified by qRT-PCR, Western blotting, and immunofluorescence. In addition, an emphysema mouse model was constructed using elastase to assess the severity of emphysema in each group of mice. Results: Airway epithelial SHP-1 was significantly downregulated in COPD patients. Genotyping confirmed that SHP-1Δ/Δ mice expressed CC10-CreER and SHP-1-flox. After tamoxifen induction, we demonstrated the absence of SHP-1 protein expression in airway epithelial cells of SHP-1Δ/Δ mice at the DNA, RNA, and protein levels, indicating that airway epithelial cell-specific SHP-1 knockout mice had been successfully constructed. In the emphysema animal model, SHP-1Δ/Δ mice had a more severe emphysema phenotype compared with the control group, which was manifested by disorganization of alveolar structure in lung tissue and rupture and fusion of alveolar walls to form pulmonary alveoli. Conclusions: The present study successfully established and characterized the SHP-1 knockout mouse model of airway epithelial cells, which provides a new experimental tool for the in-depth elucidation of the role of SHP-1 in the emphysema process of COPD and its mechanism.
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Affiliation(s)
- S L Xu
- Department of Respiratory and Critical Care Medicine, The Affiliated Hospital of Yunnan University, The Second People's Hospital of Yunnan Province, Kunming 650021, Yunnan, China
| | - Z Chen
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, Jiangsu, China
| | - J Yang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Kunming Medical University, Kunming 650032, Yunnan, China
| | - Z Q Fan
- Department of Respiratory and Critical Care Medicine, The Affiliated Hospital of Yunnan University, The Second People's Hospital of Yunnan Province, Kunming 650021, Yunnan, China
| | - T Liu
- Department of Respiratory and Critical Care Medicine, The Affiliated Hospital of Yunnan University, The Second People's Hospital of Yunnan Province, Kunming 650021, Yunnan, China
| | - X T Zhang
- Department of Respiratory and Critical Care Medicine, The Affiliated Hospital of Yunnan University, The Second People's Hospital of Yunnan Province, Kunming 650021, Yunnan, China
| | - B Q Zeng
- Department of Respiratory and Critical Care Medicine, The Affiliated Hospital of Yunnan University, The Second People's Hospital of Yunnan Province, Kunming 650021, Yunnan, China
| | - X Q Xing
- Department of Respiratory and Critical Care Medicine, The Affiliated Hospital of Yunnan University, The Second People's Hospital of Yunnan Province, Kunming 650021, Yunnan, China
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Wu S, Jiang W, Ding YP, Liu QQ, Bai H, Xu SL, Zhang HR, Xia MH, Gu YH. Effect of electroacupuncture on ventricular structure and function in rats with myocardial ischemia-reperfusion injury. Zhen Ci Yan Jiu 2024; 49:6-14. [PMID: 38239133 DOI: 10.13702/j.1000-0607.20221405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/23/2024]
Abstract
OBJECTIVES To observe the effect of electroacupuncture (EA) on changes of ventricular structure and function in rats with myocardial ischemia-reperfusion injury (MIRI), so as to explore its potential mechanisms underlying improvement of ventricular remodeling after MIRI. METHODS Forty male SD rats were randomly divided into 4 groups:sham operation group, model group, EA group and medication (sacubactril valsartan, LCZ696) group, with 10 rats in each group. The MIRI model was established by ligation of the left anterior descending coronary artery and reperfusion. EA (2 Hz/100 Hz, 2 mA) was applied to bilateral "Neiguan" (PC6) for 20 min, once every other day for 21 d. Rats of the medication group received gavage of LCZ696 (60 mg·kg-1·d-1). After the intervention, echocardiography was used to detect the ejection fraction (EF) and fractional shortening (FS) of the left ventricle, and the contents of serum tumor necrosis factor-α(TNF-α), vascular cell adhesion molecule-1(VCAM-1) and intercellular cell adhesion molecule-1(ICAM-1) were assayed by enzyme-linked immunosorbent assay. The pathological changes of myocardial tissue were observed after HE staining. The Masson staining was used to evaluate the myocardial collagen deposition and myocardial fibrosis. The mRNA expression levels of collagen Ⅰ and Ⅲ and connective tissue growth factor (CTGF) in the myocardial tissue were detected by quantitative real-time PCR, and the expression levels of IL-1β and IL-18 were detected by Western blot. RESULTS In contrast to the sham operation group, the EF and FS levels of the left ventricle were ob-viously decreased (P<0.001), while the contents of serum TNF-α, VCAM-1 and ICAM-1, the proportion of myocardial fibrosis area, the mRNA expression levels of myocardial collagen Ⅰ, collagen Ⅲ and CTGF, the expression levels of IL-1β and IL-18 were significantly increased (P<0.001, P<0.000 1, P<0.05, P<0.01) in the model group. Compared with the model group, the EF and FS levels were remarkably increased (P<0.01), whereas the contents of serum TNF-α, VCAM-1 and ICAM-1, the proportion of myocardial fibrosis area, the mRNA expression levels of myocardial collagen Ⅰ, collagen Ⅲ and CTGF, and the expression levels of IL-1β and IL-18 were significantly down-regulated (P<0.001, P<0.01, P<0.05) in both the medication and EA groups. No significant differences were found between the EA and medication groups in all the indexes mentioned above. CONCLUSIONS EA can improve the left-ventricular fibrosis and function, delay or reverse ventricular remodeling in MIRI rats, which may be related to its functions in down-regulating myocardial inflammatory response and mRNA expression levels of myocardial collagen Ⅰ, collagen Ⅲ and CTGF.
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Affiliation(s)
- Shuang Wu
- School of Acupuncture-Moxibustion and Tuina, School of Health Preservation and Rehabilitation, Nanjing University of Chinese Medicine, Nanjing 210023, China
- Department of Acupuncture and Moxibustion, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu Province
| | - Wen Jiang
- Department of Neurology, Nantong Hospital Affiliated to Nanjing University of Chinese Medicine, Nantong 226001, Jiangsu Province
| | - Ya-Ping Ding
- School of Acupuncture-Moxibustion and Tuina, School of Health Preservation and Rehabilitation, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Qiong-Qiong Liu
- School of Acupuncture-Moxibustion and Tuina, School of Health Preservation and Rehabilitation, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Hua Bai
- School of Acupuncture-Moxibustion and Tuina, School of Health Preservation and Rehabilitation, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Sen-Lei Xu
- School of Acupuncture-Moxibustion and Tuina, School of Health Preservation and Rehabilitation, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Hong-Ru Zhang
- School of Chinese Medicine, School of Integrated Traditional and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210023
| | - Ming-Hui Xia
- Department of Acupuncture and Moxibustion, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu Province
| | - Yi-Huang Gu
- School of Acupuncture-Moxibustion and Tuina, School of Health Preservation and Rehabilitation, Nanjing University of Chinese Medicine, Nanjing 210023, China.
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Bai H, Xu SL, Shi JJ, Ding YP, Liu QQ, Jiang CH, He LL, Zhang HR, Lu SF, Gu YH. Electroacupuncture preconditioning protects against myocardial ischemia-reperfusion injury by modulating dynamic inflammatory response. Heliyon 2023; 9:e19396. [PMID: 37809701 PMCID: PMC10558356 DOI: 10.1016/j.heliyon.2023.e19396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Revised: 08/11/2023] [Accepted: 08/21/2023] [Indexed: 10/10/2023] Open
Abstract
Background The protective effects of electroacupuncture (EA) preconditioning against myocardial ischemia-reperfusion injury (MIRI) have been reported. However, the underlying mechanism remains unclear. Recent research has indicated that the dynamic inflammatory response following MIRI plays an essential role in the progression of myocardial injury. This study aimed to investigate the myocardial protective effects of EA preconditioning on MIRI in rats and to explore the relevant mechanism from the perspective of dynamic inflammatory response. Methods A MIRI model was employed, and the rats were subjected to EA on Neiguan for four days prior to modeling. The myocardial protective effect of EA preconditioning was evaluated by echocardiography, Evans blue and triphenyltetrazolium chloride staining. Real-time polymerase chain reaction, Western blot, hematoxylin & eosin staining, and immunohistochemistry were utilized to detect the content of mitochondrial DNA, NOD receptor family protein 3 (NLRP3) inflammasome activation, neutrophil recruitment and macrophage infiltration in blood samples and myocardium below the ligation. Results We found that EA preconditioning could accelerate the recovery of left ventricle function after MIRI and reduce the myocardial infarction area, thereby protecting the myocardium against MIRI. Furthermore, EA preconditioning was observed to ameliorate mitochondrial impairment, reduce the level of plasma mitochondrial DNA, modulate NLRP3 inflammasome activation, attenuate neutrophil infiltration, and promote the polarization of M1 macrophages towards M2 macrophages in the myocardium after MIRI. Conclusion EA preconditioning could reduce plasma mtDNA, suppress overactivation of the NLRP3 inflammasome, facilitate the transition from the acute pro-inflammatory phase to the anti-inflammatory reparative phase after MIRI, and ultimately confer cardioprotective benefits.
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Affiliation(s)
- Hua Bai
- Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing, 210023, China
- Acupuncture and Tuina College, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Sen-Lei Xu
- Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing, 210023, China
- Acupuncture and Tuina College, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Jun-Jing Shi
- Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing, 210023, China
- Acupuncture and Tuina College, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Ya-Ping Ding
- Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing, 210023, China
- Acupuncture and Tuina College, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Qiong-Qiong Liu
- Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing, 210023, China
- Acupuncture and Tuina College, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Chun-Hong Jiang
- Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing, 210023, China
- Acupuncture and Tuina College, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Li-Li He
- Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing, 210023, China
- Acupuncture and Tuina College, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Hong-Ru Zhang
- School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Sheng-Feng Lu
- Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing, 210023, China
- School of Elderly Care Services and Management, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Yi-Huang Gu
- Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing, 210023, China
- Acupuncture and Tuina College, Nanjing University of Chinese Medicine, Nanjing, 210023, China
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Liu MM, Xu SL, Zhang HB, Zhang JW, Ren BN, Zhang WJ, Liu ZZ, Hu JJ, Guan YC. [Effect of preimplantation genetic testing for aneuploidies on pregnancy outcome in patients with unexplained recurrent spontaneous abortion]. Zhonghua Yi Xue Za Zhi 2023; 103:2335-2341. [PMID: 37574832 DOI: 10.3760/cma.j.cn112137-20221204-02567] [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: 08/15/2023]
Abstract
Objective: To investigate the effect of preimplantation genetic testing for aneuploidies (PGT-A) on pregnancy outcome and perinatal outcome of single live birth in patients with unexplained recurrent spontaneous abortion (URSA). Methods: The clinical data of 351 cycles of the first transfer of a blastocyst through whole embryo freezing in the Reproductive Center of the Third Affiliated Hospital of Zhengzhou University from 2019 to 2021 were retrospectively analyzed. According to whether PGT-A was performed before the transfer, the patients were divided into two groups: the PGT-A group (160 cycles) and the control group (191 cycles) were treated with in vitro fertilization/intracytoplasmic sperm microinjection (IVF/ICSI). To adjust for confounding factors, propensity score matching (PSM) was carried out in a 1∶1 ratio between the two groups of patients. After matching, 98 patients in the PGT-A group and 98 patients in the control group were compared for pregnancy outcome and perinatal outcome of singleton live births. Results: Before PSM, the female age in the PGT-A group was (33.6±4.0) years, lower than that in the control group (34.5±4.5) years (P=0.049). Male age in the PGT-A group was (33.6±4.1) years, lower than that in the control group (35.3±5.1) years (P<0.001). There were statistically significant differences between the two groups in infertility factors, female body mass index (BMI), years of infertility, number of spontaneous abortions, basal follicle stimulating hormone (FSH), endometrial thickness on the day of transfer and the percentage of high-quality blastocysts (all P values<0.05); After PSM, there was a statistically significant difference in fertilization methods and infertility factors between the two groups (P<0.05), while other differences were not statistically significant (all P values>0.05); There were statistically significant differences between the two groups in implant rate [63.3% (62 cycles) vs. 49.0% (48 cycles), P=0.044], clinical pregnancy rate [63.3% (62 cycles) vs. 49.0% (48 cycles), P=0.044], and live birth rate [42.9% (42 cycles) vs. 28.6% (28 cycles), P=0.037]. There was no statistically significant difference in perinatal outcomes between the PGT-A group and the control group in obtaining single birth live births (P>0.05). Conclusion: Compared with conventional IVF/ICSI assisted pregnancy, PGT-A assisted pregnancy significantly improves implantation rate, clinical pregnancy rate, and live birth rate in URSA patients. PGT-A improves the pregnancy outcomes in URSA patients but not perinatal outcomes in patients with singleton live births.
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Affiliation(s)
- M M Liu
- Reproductive Center of the Third Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - S L Xu
- Reproductive Center of the Third Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - H B Zhang
- Reproductive Center of the Third Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - J W Zhang
- Reproductive Center of the Third Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - B N Ren
- Reproductive Center of the Third Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - W J Zhang
- Reproductive Center of the Third Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Z Z Liu
- Reproductive Center of the Third Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - J J Hu
- Reproductive Center of the Third Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Y C Guan
- Reproductive Center of the Third Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
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Xia XF, Liu YC, Lu SF, Bai H, Xu SL, Sun K, Wu JH, Gu YH, Zhang HR. [Effect of electroacupuncture preconditioning on expression of Gasdermin D, Caspase-1 and IL-1β in rats with myocardial ischemia reperfusion injury]. Zhen Ci Yan Jiu 2022; 47:443-448. [PMID: 35616419 DOI: 10.13702/j.1000-0607.20210286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
OBJECTIVE To observe the effect of electroacupuncture(EA) preconditioning on expression of Caspase-1, Gasdermin D(GSDMD) and interleukin-1β(IL-1β) in myocardial tissue of myocardial ischemia reperfusion injury (MIRI) rats in order to explore its underlying mechanisms in resisting MIRI. METHODS Forty male rats were randomly divided into 4 groups: normal control (normal), sham operation (sham), MIRI model and EA groups. The MIRI model was established by ligation of the left anterior descending branch of the left coronary artery for 30 min and perfusion. EA (2 Hz/100 Hz, 1 mA) was applied to bilateral "Neiguan" (PC6) for 20 min, once a day for 3 consecutive days. The echocardiography was used to analyze the left ventricular end-diastolic dimension (LVEDD), left ventricular end-systolic dimension (LVESD) and left ventricular ejection fraction (LVEF, by using Teichholz formula) 4 h after modeling. The myocardial TTC staining was used to observe the proportion of the infarct area, and Western blot was used to detect the expression levels of GSDMD, Caspase-1, IL-1β proteins in the myocardium. RESULTS Compared with the normal group, the immunoactivity of GSDMD was increased in the sham group (P<0.05). Compared with the sham group, the LVEF was significantly decreased (P<0.000 1), while the myocardial infarction area, immunoactivity of GSDMD, and the expression levels of Caspase-1, GSDMD and IL-1β proteins were considerably increased in the model group (P<0.000 1, P<0.001). In comparison with the model group, the decreased ejection fraction and the increased myocardial infarction area, and Caspase-1, GSDMD and IL-1β expression were reversed in the EA group (P<0.001, P<0.000 1, P<0.01). CONCLUSION EA preconditioning may ameliorate myocardial injury in MIRI rats which may be associated with its function in down-regulating the expression of myocardial Caspase-1 protein to reduce cardiomyocyte pyroptosis.
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Affiliation(s)
- Xue-Feng Xia
- College of Acupuncture and Massage, Health and Rehabilitation College, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Yu-Chen Liu
- College of Acupuncture and Massage, Health and Rehabilitation College, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Sheng-Feng Lu
- College of Acupuncture and Massage, Health and Rehabilitation College, Nanjing University of Chinese Medicine, Nanjing 210023, China; Key Laboratory for Resear-ching Combination of Acupuncture and Drugs of Chinese Ministry of Education, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Hua Bai
- College of Acupuncture and Massage, Health and Rehabilitation College, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Sen-Lei Xu
- College of Acupuncture and Massage, Health and Rehabilitation College, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Ke Sun
- College of Acupuncture and Massage, Health and Rehabilitation College, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Jia-Hong Wu
- College of Acupuncture and Massage, Health and Rehabilitation College, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Yi-Huang Gu
- College of Acupuncture and Massage, Health and Rehabilitation College, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Hong-Ru Zhang
- School of Chinese Medicine, School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China
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Ge LY, Xu SL, Chen Z, Zhou LF. [New insights into treatment of chronic obstructive pulmonary disease by targeting macrophages via sialic acid-binding immunoglobulin like lectin 9]. Zhonghua Jie He He Hu Xi Za Zhi 2021; 44:1119-1123. [PMID: 34915626 DOI: 10.3760/cma.j.cn112147-20211003-00694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
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Sun K, Wu JH, Xu SL, Xia XF, Liu YC, Bai H, Lu SF, Zhang HR, Gu YH. [Effect of electroacupuncture at "Neiguan" (PC 6) on cardiac function and inflammatory factors of acupoint area in rats with acute myocardial ischemia]. Zhongguo Zhen Jiu 2021; 41:1249-55. [PMID: 34762379 DOI: 10.13703/j.0255-2930.20201206-k0004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
OBJECTIVE To observe the effect of electroacupuncture (EA) at "Neiguan" (PC 6) on cardiac function and cardiomyocyte apoptosis in rats with acute myocardial ischemia (AMI), and to explore the correlation between myocardial protective effect of EA and inflammatory factors i.e. interleukin-1β (IL-1β) and interleukin-17 (IL-17) of "Neiguan" (PC 6) area. METHODS A total of 40 male SD rats with normal ultrasonic cardiogram were randomized into a sham-operation group, a sham-operation plus EA group, a model group and an EA group, 10 rats in each group. The AMI model was established by ligating the left anterior descending (LAD) branch of the coronary artery in the model group and the EA group, while the threading without ligating was adopted in the sham-operation group and the sham-operation plus EA group. In the sham-operation plus EA group and the EA group, EA at bilateral "Neiguan" (PC 6) was applied, with disperse-dense wave, 2 Hz/100 Hz in frequency and 2 mA in density, once a day, 20 min a time for 3 days. The cardiac ejection fraction (EF) and fractional shortening (FS) were measured by ultrasonic cardiogram to evaluate the cardiac function, the cardiomyocyte apoptosis was detected by TUNEL staining, the infiltration of inflammatory factors of "Neiguan" (PC 6) area was observed by H.E. staining, the expression of inflammatory factors IL-1β and IL-17 of "Neiguan" (PC 6) area was detected by immunofluorescence staining. RESULTS Compared with the sham-operation group, EF and FS were decreased (P<0.001), the average optical density of cardiomyocyte apoptosis was increased (P<0.001), the infiltration of inflammatory factors was obvious in skin dermis of "Neiguan" (PC 6) area in the model group; the positive expression of IL-1β and IL-17 of "Neiguan" (PC 6) area was increased in the model group and the sham-operation plus EA group (P<0.001, P<0.01). Compared with the model group, EF and FS were increased (P<0.01), the average optical density of cardiomyocyte apoptosis was decreased (P<0.01), the infiltration of inflammatory factors was aggravating in skin dermis of "Neiguan" (PC 6) area, and the positive expression of IL-1β and IL-17 of "Neiguan" (PC 6) area was increased in the EA group (P<0.001, P<0.01). CONCLUSION Electroacupuncture at "Neiguan" (PC 6) can improve the cardiac function and reduce the apoptosis of cardiomyocyte in rats with acute myocardial ischemia, its mechanism may be related to the regulation of the inflammatory factors of "Neiguan" (PC 6) area.
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Affiliation(s)
- Ke Sun
- College of Acupuncture-Moxibustion and Tuina, College of Health and Rehabilitation, Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu Province, China
| | - Jia-Hong Wu
- College of Acupuncture-Moxibustion and Tuina, College of Health and Rehabilitation, Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu Province, China
| | - Sen-Lei Xu
- College of Acupuncture-Moxibustion and Tuina, College of Health and Rehabilitation, Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu Province, China
| | - Xue-Feng Xia
- College of Acupuncture-Moxibustion and Tuina, College of Health and Rehabilitation, Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu Province, China
| | - Yu-Chen Liu
- College of Acupuncture-Moxibustion and Tuina, College of Health and Rehabilitation, Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu Province, China
| | - Hua Bai
- College of Acupuncture-Moxibustion and Tuina, College of Health and Rehabilitation, Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu Province, China
| | - Sheng-Feng Lu
- College of Acupuncture-Moxibustion and Tuina, College of Health and Rehabilitation, Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu Province, China; Key Laboratory of Acupuncture and Medicine of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu Province
| | - Hong-Ru Zhang
- College of Acupuncture-Moxibustion and Tuina, College of Health and Rehabilitation, Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu Province, China
| | - Yi-Huang Gu
- College of Acupuncture-Moxibustion and Tuina, College of Health and Rehabilitation, Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu Province, China
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Kuang XY, Xu SL, Cui W, Jiang XF. [Association of GMF-β expression with Ki-67 and its significance in the prognostic evaluation of astrocytoma]. Zhonghua Bing Li Xue Za Zhi 2021; 50:1252-1256. [PMID: 34719163 DOI: 10.3760/cma.j.cn112151-20210627-00459] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To clarify the correlation of the expression of glia maturation factor-β (GMF-β) with Ki-67 in astrocytoma, and to investigate the prognostic implications of combined detection of GMF-β and Ki-67. Methods: One hundred and forty human astrocytoma samples (WHO Ⅱ-Ⅳ grade) were collected at Southwest Hospital, Army Medical University (the Third Military Medical University), China from 2006 to 2009. Clinicopathological information and 3-year follow-up data were collected. Expression of GMF-β and Ki-67 was detected by single and double immunohistochemical staining, then the association of GMF-β expression with Ki-67 and its significance in prognostic evaluation of astrocytoma were statistically analyzed. Results: GMF-β expression in astrocytoma cells was correlated to both tumor grade and Ki-67 (both P<0.05); Kaplan-Meier survival analysis showed that GMF-β and Ki-67 expression were negatively correlated to the 3 year-survival rates, respectively (both P<0.01). Further analysis demonstrated that the two factors were co-influenced on survival, showing a trend of "GMF-βlow Ki-67low>GMF-βhigh Ki-67low>GMF-βlow Ki-67high>GMF-βhigh Ki-67high" in 3-year survival rate with significant intergroup differences (P<0.05, P<0.01). Conclusions: GMF-β expression is positively associated with Ki-67 in astrocytoma. Combined detection of GMF-β and Ki-67 can predict prognosis of patients with glioma.
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Affiliation(s)
- X Y Kuang
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Army Medical University (the Third Military Medical University), Chongqing 400038, China
| | - S L Xu
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Army Medical University (the Third Military Medical University), Chongqing 400038, China
| | - W Cui
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Army Medical University (the Third Military Medical University), Chongqing 400038, China
| | - X F Jiang
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Army Medical University (the Third Military Medical University), Chongqing 400038, China
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Bai H, Gu RJ, Chen LY, Qian Y, Yu ML, Xu SL, Xia XF, Liu YC, Zhang HR, Gu YH, Lu SF. Electroacupuncture interventions alleviates myocardial ischemia reperfusion injury through regulating gut microbiota in rats. Microvasc Res 2021; 138:104235. [PMID: 34453991 DOI: 10.1016/j.mvr.2021.104235] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 08/10/2021] [Accepted: 08/20/2021] [Indexed: 12/21/2022]
Abstract
Electroacupuncture (EA) intervention has a remarkable cardioprotection against myocardial ischemia reperfusion injury (MIRI). Recently, it has been suggested that the gut microbiota plays an important role in regulating the progression and prognosis of MIRI. The purpose of this study was to illustrate the relationship between gut microbiota and cardioprotection of EA on MIRI. We conducted a MIRI model by ligating the left anterior descending coronary artery for 30 min followed by reperfusion in male Sprague Dawley rats, which then received 7 days of EA intervention. Echocardiography was employed to evaluate left ventricular function. Fecal samples were collected for microbial analysis by 16S rDNA high-throughput sequencing. Blood samples and myocardium were collected for inflammatory cytokine detection by enzyme linked immunosorbent assay (ELISA) and Western blot. Hematoxylin & eosin (HE) staining and immunofluorescence of ileum tissue were performed for intestinal damage evaluation. After 7 days of EA intervention, the left ventricular function was improved with significantly increased ejection fraction and fractional shortening. Furthermore, we found that EA intervention reversed the changed gut microbiota induced by MIRI, including Clostridiales, RF39, S24-7, Desulfovibrio, and Allobaculum, improved the impaired gut barrier, reduced the production and circulation of lipopolysaccharide (LPS), inhibited the level of interleukin 6 (IL-6) and interleukin 12 (IL-12) in periphery and decreased the expression of Toll like receptor 4 (TLR4) and IL-6 in myocardium. EA intervention could improve the impaired gut mucosal barrier and reduce the production and circulation of LPS after MIRI through regulating gut microbiota, thus inhibiting the circulation and myocardium inflammation and finally exerted the cardioprotective effect.
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Affiliation(s)
- Hua Bai
- Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing 210023, China; Acupuncture and Tuina College, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Ren-Jun Gu
- The First School of Clinical Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Li-Yao Chen
- Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing 210023, China; Acupuncture and Tuina College, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Yi Qian
- Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Mei-Ling Yu
- Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing 210023, China; Acupuncture and Tuina College, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Sen-Lei Xu
- Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing 210023, China; Acupuncture and Tuina College, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Xue-Feng Xia
- Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing 210023, China; Acupuncture and Tuina College, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Yu-Chen Liu
- Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing 210023, China; Acupuncture and Tuina College, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Hong-Ru Zhang
- School of Basic Medical Sciences, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Yi-Huang Gu
- Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing 210023, China; Acupuncture and Tuina College, Nanjing University of Chinese Medicine, Nanjing 210023, China.
| | - Sheng-Feng Lu
- Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing 210023, China; Acupuncture and Tuina College, Nanjing University of Chinese Medicine, Nanjing 210023, China.
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Sun K, Wu JH, Bai H, Xu SL, Xia XF, Liu YC, Lu SF, Gu YH, Zhang HR. [Effect of electroacupuncture on expression of IL-23/IL-17 axis and TLR4 in infarcted tissue in rats with myocardial infarction]. Zhongguo Zhen Jiu 2021; 41:1023-8. [PMID: 34491653 DOI: 10.13703/j.0255-2930.20200824-k0001] [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: 11/06/2022]
Abstract
OBJECTIVE To observe the effect of electroacupuncture (EA) on expression of interleukin (IL) -23/IL-17 axis and Toll-like receptor 4 (TLR4) in the infarcted tissue in rats with myocardial infarction (MI), and to explore the mechanism of EA on alleviating MI injury. METHODS Forty male SD rats were randomly divided into a sham-operation group, a sham-operation plus EA group, a model group and an EA group, 10 rats in each group. The MI models were established by ligation of left anterior descending coronary artery in the model group and EA group, while only threading was performed in the sham-operation group and sham-operation plus EA group. The rats in the sham-operation plus EA group and EA group were treated with EA at "Neiguan" (PC 6), disperse-dense wave, 2 Hz/100 Hz, 2 mA, once a day, 20 min each time, for 3 days. After the intervention, the ejection fraction (EF) was measured by echocardiography to evaluate the cardiac function; the infarct area was measured by TTC staining; the HE staining was used to observe the morphological changes of myocardial tissue; the levels of IL-23 and IL-17 in infarcted tissue were detected by ELISA; the protein expression of TLR4 in infarcted tissue was detected by Western blot. RESULTS Compared with the sham-operation group, the EF was decreased (P<0.01), the infarct area was increased (P<0.01), the myocardial fiber injury was obvious, accompanied by inflammatory cell infiltration, and the contents of IL-23, IL-17 and the expression of TLR4 in infarcted tissue were increased in the model group (P<0.01). Compared with the model group, the EF was increased (P<0.05), the infarct area was reduced (P<0.05), the myocardial fiber injury was significantly improved, the inflammatory cell infiltration was reduced, and the contents of IL-23, IL-17 and TLR4 expression in infarcted tissue were decreased in the EA group (P<0.05). CONCLUSION EA may alleviate the excessive inflammatory response after MI by inhibiting the expression of IL-23/IL-17 axis in MI rats, and TLR4 may be involved during the process.
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Affiliation(s)
- Ke Sun
- College of Acupuncture-Moxibustion and Tuina, College of Health and Rehabilitation, Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu Province, China
| | - Jia-Hong Wu
- College of Acupuncture-Moxibustion and Tuina, College of Health and Rehabilitation, Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu Province, China
| | - Hua Bai
- College of Acupuncture-Moxibustion and Tuina, College of Health and Rehabilitation, Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu Province, China
| | - Sen-Lei Xu
- College of Acupuncture-Moxibustion and Tuina, College of Health and Rehabilitation, Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu Province, China
| | - Xue-Feng Xia
- College of Acupuncture-Moxibustion and Tuina, College of Health and Rehabilitation, Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu Province, China
| | - Yu-Chen Liu
- College of Acupuncture-Moxibustion and Tuina, College of Health and Rehabilitation, Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu Province, China
| | - Sheng-Feng Lu
- College of Acupuncture-Moxibustion and Tuina, College of Health and Rehabilitation, Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu Province, China; Key Laboratory of Acupuncture and Medicine of Ministry of Education, Nanjing University of Chinese Medicine
| | - Yi-Huang Gu
- College of Acupuncture-Moxibustion and Tuina, College of Health and Rehabilitation, Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu Province, China
| | - Hong-Ru Zhang
- College of Acupuncture-Moxibustion and Tuina, College of Health and Rehabilitation, Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu Province, China
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Wu JH, Sun K, Lu SF, Bai H, Xu SL, Xia XF, Liu YC, Gu YH, Zhang HR. [Effect of electroacupuncture pretreatment on transient receptor potential vanilloid 1(TRPV1)/calcitonin gene-related peptide(CGRP) signal and NF-κB p65 protein expression in rats with acute myocardial ischemia]. Zhen Ci Yan Jiu 2021; 46:58-63. [PMID: 33559427 DOI: 10.13702/j.1000-0607.200905] [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: 11/12/2022]
Abstract
OBJECTIVE To observe the effect of electroacupuncture(EA)pretreatment on transient receptor potential vanilloid 1(TRPV1)/calcitonin gene-related peptide(CGRP)signal and nuclear factor-κB p65 (NF-κB p65) protein expression in myocardial tissue of acute myocardial ischemic injury (AMI) rats, and to investigate the possible mechanism of electroacupuncture pretreatment against AMI. METHODS A total of 60 adult male SD rats were randomly divided into blank control, sham operation, model and EA pretreatment groups, 15 rats in each group. The acute myocardial ischemia model was established by ligating the left anterior descending (LAD)branch of the coronary artery in the model group and EA pretreatment group, while threading but no ligating at left anterior descending branch of the coronary artery was applied in the sham operation group. In the EA pretreatment group, bilateral "Neiguan"(PC6) acupoints were selected, with intensity of 2 mA and frequency of 2 Hz/100 Hz, for 20 min, once daily for 7 days before modeling. Electrocardiogram (ECG) was recorded by physiological signal acquisition system, and the ST segment potential offset values of standard Ⅱ lead were analyzed before surgery,30 min and 24 h after operation. The TTC staining was used to observe the percentage of myocardial infarction area. The HE staining was used to observe the pathological changes of myocardial tissue and the degree of inflammatory cell infiltration. And Western blot was used to detect TRPV1/CGRP signal and NF-κB p65 protein expression levels in myocardial tissue. RESULTS Compared with the sham operation group, the ECG-J point potential in the model group was significantly increased at 30 min and decreased at 24 h after operation (P<0.05), myocardial infarction area increased significantly (P<0.05), the myocardial fibers were obviously disordered, inflammatory cell infiltration was obvious, and the expressions of TRPV1,CGRP and NF-κB p65 proteins were all increased (P<0.05). Compared with the model group, the EA pretreatment group was decreased in the ECG-J point potential at 30 min after operation(P<0.05), significantly reduced in myocardial infarction area (P<0.05), improved in the morphology of myocardial fibers, reduced ininflammatory cell infiltration, and increased in the protein expressions of TRPV1 and CGRP in myocardium (P<0.05), significantly decreased in the protein expression of NF-κB p65 (P<0.05). CONCLUSION EA pretreatment may enhance TRPV1/CGRP signaling, down-regulate NF-κB p65 protein expression, reduce myocardial inflammatory response status, improve AMI injury, and reduce myocardial infarction area.
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Affiliation(s)
- Jia-Hong Wu
- College of Acupuncture and Massage, Health and Rehabilitation College, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Ke Sun
- College of Acupuncture and Massage, Health and Rehabilitation College, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Sheng-Feng Lu
- College of Acupuncture and Massage, Health and Rehabilitation College, Nanjing University of Chinese Medicine, Nanjing 210023, China; Key Laboratory for Researching Combination of Acupuncture and Drugs of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Hua Bai
- College of Acupuncture and Massage, Health and Rehabilitation College, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Sen-Lei Xu
- College of Acupuncture and Massage, Health and Rehabilitation College, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Xue-Feng Xia
- College of Acupuncture and Massage, Health and Rehabilitation College, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Yu-Chen Liu
- College of Acupuncture and Massage, Health and Rehabilitation College, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Yi-Huang Gu
- College of Acupuncture and Massage, Health and Rehabilitation College, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Hong-Ru Zhang
- College of Acupuncture and Massage, Health and Rehabilitation College, Nanjing University of Chinese Medicine, Nanjing 210023, China
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Lin X, Zhou Z, Li SB, Gao Y, Li SY, Zhu PJ, Xu SL. [Application of two-stage crestal approach sinus elevation in severe atrophic posterior maxilla]. Zhonghua Kou Qiang Yi Xue Za Zhi 2020; 55:871-877. [PMID: 33171561 DOI: 10.3760/cma.j.cn112144-20200609-00325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the feasibility of two-stage crestal approach sinus elevation in severe atrophic maxilla. Methods: A total of 25 patients (male: 13 cases,female: 12 cases) who attended Department of Implant Center, Stomatological Hospital, Southern Medical University from May 2016 to May 2018 were included in this study. The age of the patients was 32-49 years old. The inclusion criteria were: single or multiple tooth loss in posterior maxilla with residual bone height ranged from 1.5 to 3.0 mm and vertical bone width≥6 mm, no pathological changes or septum were detected in the sinus. The elevated sides were divided into three groups according to different buccal-palatal sinus width (SW): wide (16 case, SW>15 mm), normal (12 case, 12 mm≤SW≤15 mm), narrow (5 case, SW<12 mm). Finally, 23 patients with 33 implants were placed by the two-stage crestal approach for sinus elevation. Six months after implant placement, final restorations were delivered. Implant survival rate, implant stability quotient (ISQ), immediate vertical bone height (VBH) after surgeries, changes of sinus elevation height (cSEH), marginal bone loss (MBL) at 1 year follow-up were examined. Results: Twenty-three patients were finally included in the study, including 12 males and 11 females, aged (41.2±7.6) years old. All implants healed uneventfully. ISQ (wide: 50.81±2.69; normal: 60.58±2.54; narrow: 63.12±3.58), immediate VBH after 1st surgery [wide: (7.99±1.13) mm; normal: (8.95±0.81) mm; narrow: (9.18±0.90) mm] and 2nd surgery [wide: (11.46±0.88) mm; normal: (12.77±0.49) mm; narrow: (12.57±0.55) mm], cSEH six months after 1st [wide: (3.87±0.43) mm; normal: (2.01±0.65) mm; narrow: (1.49±0.33) mm] and 2nd [wide: (1.16±0.29) mm; normal: (1.04±0.33) mm ; narrow: (0.97±0.41) mm] surgery, MBL [wide: (0.91±0.05) mm; normal: (0.79±0.10) mm; narrow: (0.74±0.07) mm] were significantly different among three groups (P<0.05). In all the three groups, cSEH was barely detected at 1-year follow-up (P>0.05). Conclusions: Two-stage crestal approach for sinus elevation might be an alternative protocol in severe atrophic posterior maxilla, especially in cases with narrow and normal buccal-palatal width. There is an urgent need for long time follow-up and more clinical cases.
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Affiliation(s)
- X Lin
- Department of Implant Center, Stomatological Hospital, Southern Medical University, Guangzhou 510280, China
| | - Z Zhou
- Department of Implant Center, Stomatological Hospital, Southern Medical University, Guangzhou 510280, China
| | - S B Li
- Department of Implant Center, Stomatological Hospital, Southern Medical University, Guangzhou 510280, China
| | - Y Gao
- Department of Implant Center, Stomatological Hospital, Southern Medical University, Guangzhou 510280, China
| | - S Y Li
- Department of Implant Center, Stomatological Hospital, Southern Medical University, Guangzhou 510280, China
| | - P J Zhu
- Department of Implant Center, Stomatological Hospital, Southern Medical University, Guangzhou 510280, China
| | - S L Xu
- Department of Implant Center, Stomatological Hospital, Southern Medical University, Guangzhou 510280, China
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Bai H, Sun K, Wu JH, Zhong ZH, Xu SL, Zhang HR, Gu YH, Lu SF. Proteomic and metabolomic characterization of cardiac tissue in acute myocardial ischemia injury rats. PLoS One 2020; 15:e0231797. [PMID: 32365112 PMCID: PMC7197859 DOI: 10.1371/journal.pone.0231797] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2020] [Accepted: 03/31/2020] [Indexed: 12/12/2022] Open
Abstract
The pathological process and mechanism of myocardial ischemia (MI) is very complicated, and remains unclear. An integrated proteomic-metabolomics analysis was applied to comprehensively understand the pathological changes and mechanism of MI. Male Sprague-Dawley rats were randomly divided into a mock surgery (MS) group and an MI group. The MI model was made by ligating the left anterior descending coronary artery, twenty-four hours after which, echocardiography was employed to assess left ventricular (LV) function variables. Blood samples and left ventricular tissues were collected for ELISA, metabolomics and proteomics analysis. The results showed that LV function, including ejection fraction (EF) and fractional shortening (FS), was significantly reduced and the level of cTnT in the serum increased after MI. iTRAQ proteomics showed that a total of 169 proteins were altered including 52 and 117 proteins with increased and decreased expression, respectively, which were mainly involved in the following activities: complement and coagulation cascades, tight junction, regulation of actin cytoskeleton, MAPK signaling pathway, endocytosis, NOD-like receptor signaling pathway, as well as phagosome coupled with vitamin digestion and absorption. Altered metabolomic profiling of this transition was mostly enriched in pathways including ABC transporters, glycerophospholipid metabolism, protein digestion and absorption and aminoacyl-tRNA biosynthesis. The integrated metabolomics and proteomics analysis indicated that myocardial injury after MI is closely related to several metabolic pathways, especially energy metabolism, amino acid metabolism, vascular smooth muscle contraction, gap junction and neuroactive ligand-receptor interaction. These findings may contribute to understanding the mechanism of MI and have implication for new therapeutic targets.
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Affiliation(s)
- Hua Bai
- Acupuncture and Tuina college, Nanjing University of Chinese Medicine, Nanjing, China
| | - Ke Sun
- Acupuncture and Tuina college, Nanjing University of Chinese Medicine, Nanjing, China
| | - Jia-Hong Wu
- Acupuncture and Tuina college, Nanjing University of Chinese Medicine, Nanjing, China
| | - Ze-Hao Zhong
- Acupuncture and Tuina college, Nanjing University of Chinese Medicine, Nanjing, China
| | - Sen-Lei Xu
- Acupuncture and Tuina college, Nanjing University of Chinese Medicine, Nanjing, China
| | - Hong-Ru Zhang
- Acupuncture and Tuina college, Nanjing University of Chinese Medicine, Nanjing, China
| | - Yi-Huang Gu
- Acupuncture and Tuina college, Nanjing University of Chinese Medicine, Nanjing, China
- * E-mail: (SFL); (YHG)
| | - Sheng-Feng Lu
- Acupuncture and Tuina college, Nanjing University of Chinese Medicine, Nanjing, China
- Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing, China
- * E-mail: (SFL); (YHG)
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Abstract
Long noncoding RNA (lncRNA) LINC00473 has been reported to be involved in the regulation of several human cancers. However, the regulatory mechanism of LINC00473 is still unknown in lung adenocarcinoma. In this study, RT-qPCR was used to measure the expression of LINC00473, miR-1294 and ROBO1. The functional mechanism of the LINC00473/miR-1294/ROBO1 pathway was investigated by CCK-8, Transwell and dual luciferase reporter assays. The results showed that LINC00473 was up-regulated and miR-1294 was down-regulated in lung adenocarcinoma tissues and cells. LINC00473 can bind to miR-1294, and reciprocal inhibition between LINC00473 and miR-1294 expression was identified in lung adenocarcinoma. Functionally, LINC00473 promoted cell proliferation and motility in lung adenocarcinoma by downregulating miR-1294. In addition, miR-1294 directly targets ROBO1. ROBO1 served as an oncogene in lung adenocarcinoma. In particular, LINC00473 promoted the progression of lung adenocarcinoma by upregulating ROBO1. In conclusion, LINC00473 acts as a tumor promoter in lung adenocarcinoma by regulating the miR-1294/ROBO1 axis.
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Affiliation(s)
- S Wang
- The Fifth Department of Oncology, The Fourth People's Hospital of Zibo, Zibo, Shandong Province, China
| | - X Wang
- Nursing Department, Zibo High tech Zone People's Hospital, Zibo, Shandong Province, China
| | - S L Xu
- Department of Oncology, Zibo Central Hospital, Zibo, Shandong Province, China
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Zhang CD, Xu SL, Gao W. [Cardiac safety and risk prevention of Marathon]. Zhonghua Xin Xue Guan Bing Za Zhi 2020; 48:100-103. [PMID: 32135608 DOI: 10.3760/cma.j.issn.0253-3758.2020.02.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Affiliation(s)
- C D Zhang
- Department of Cardiology, Peking University Third Hospital; NHC Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides; Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Beijing 100191, China
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Ren C, Chen SM, Zu LY, Xu SL, Guo LJ. [Relationship between angiopoietin-2 and vascular endothelial factor and vasodilation function in hypertensive patients]. Zhonghua Yi Xue Za Zhi 2019; 99:934-938. [PMID: 30917444 DOI: 10.3760/cma.j.issn.0376-2491.2019.12.011] [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 relationship between angiopoietin 2 (Ang2) and vascular endothelial factor and vasodilation function in hypertensive patients. Methods: Patients with new onset grade 1~2 hypertension (n=40) and healthy control group (n=25) wereenrolledprospectively. Serum Ang2 and nitric oxide (NO), nitric oxide synthase (eNOS), endothelin-1 (ET-1) were measured in both groups. Flow-mediated vasodilation (FMD) were measured in hypertensive patients. The above indicators were reviewed in hypertensive patients after antihypertensive treatment until blood pressure<140/90 mmHg. Results: Compared with the control group, serum Ang2 (P=0.049) and ET-1 (P<0.001) were significantly higher. Serum NO (P<0.001) and eNOS (P<0.001) was significantly lower in the hypertensive group. Compared with baseline, serum Ang2 (P=0.049) and ET-1 (P<0.001) were decreased significantly, meanwhile serum NO (P<0.001) and eNOS (P<0.001) were significantly increased. Serum Ang2 after antihypertensive treatment was not significantly different from that of the control group, but no statistical difference was observed in FMD after antihypertensive therapy. Correlation analysis found that serum Ang2 was positively correlated with mean arterial pressure (R=0.432, P<0.001), and negative correlated with serum NO(R=-0.374, P=0.001) and FMD (R=-0.368 0, P=0.002). Multiple linear regression found that serum Ang2 was independently associated with body mass index, mean arterial pressure, and serum NO. Conclusion: Serum Ang 2 can reflect the degree of endothelial and vasodilation impairment in hypertensive patients. Antihypertensive therapy can improve endothelial function, but whether it can restore damaged vasodilation function needs further verification.
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Affiliation(s)
- C Ren
- Department of Cardiology and Institute of Vascular Medicine, Peking University Third Hospital; NHC Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education; Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing 100191, China
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Xu SL, Zhang HR, Gu YH. [Progress of Research on Mechanisms of Moxibustion Intervention Underlying Improvement of Blood Circulation]. Zhen Ci Yan Jiu 2018; 43:738-43. [PMID: 30585474 DOI: 10.13702/j.1000-0607.170309] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Moxibustion is one of the commonly used therapy of traditional Chinese medicine by applying burning dried mugwort on particular acupoints of the body surface. In the present paper,we reviewed progress of researches about the mechanisms of moxibustion treatment undering imporvement of blood circulation in recent 15 years. Research results displayed that moxibustion can dilate blood vessels to increase blood flow and improve microcirculation, not only in the local superficial vessels of body, but also in the deep tissues as the brain, stomach and mesentery, kidney, heart, etc., as well as in the distal blood vessels. The vasodilator action of moxibustion stimulation is related to nerve regulation, endothelium derived relaxing factors and vasodilator mediator, etc. through 1) interaction of acetylcholine (Ach)/muscarinic receptor (MR) and noradrenaline (NE)/α- or β-receptor; 2) nitric oxide synthase (NOS)/NO/arachidonic acid/prostacyclin (PGI2)/endothelium-derived hyperpolarizing factor (EDHF) pathway; 3) EDHF/TRPV 4/KCa channel, cytochrome P 450 oxidase/epoxyeicosatrienoicacid (EET); 4) EET/TRPV 4/big conductance calcium-activated potassium channel (BKCa); 5) sulfuretted hydrogen (H2S)/ATP-sensitive potassium channel (KATP) or voltage-gated potassium channels (Kv 7); 6) NO/substance P (SP) or CGRP and adrenergic β 2 receptor(R)/TRPV 1/adenosin A 1 R and A 2 R/NK 1 R pathway; 7) PGI2/adenylyl cyclase (cAMP)/PKA and vasoactive intestinal peptide (VIP), etc. in the vascular endothelium and smooth muscle. These research results may help us understand the effects and mechanisms of moxibustion in the treatment of different clinical conditions by improving microcirculation.
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Affiliation(s)
- Sen-Lei Xu
- The Second Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Hong-Ru Zhang
- The Second Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Yi-Huang Gu
- The Second Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing 210023, China
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Wang YP, Yao SH, Liu D, Shen T, Zhao W, Gao W, Xu SL. [Relationships between percentage of skeletal muscle mass and cardiorespiratory fitness in elderly patients with coronary heart disease]. Zhonghua Yi Xue Za Zhi 2018; 98:831-836. [PMID: 29609265 DOI: 10.3760/cma.j.issn.0376-2491.2018.11.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To determine the relative percentage of skeletal muscle mass (SMM) in elderly patients with coronary heart disease, analyse the relationship between percentage of SMM and cardiorespiratory fitness (CRF), predict exercise capacity and cardiac reserve. Methods: Patients aged 65 years and over after PCI, receiving cardiopulmonary exercise testing (CPET) during February 2014 to December 2016 in Department of Cardiology at Peking University Third Hospital were enrolled.All patients' basic data, percentage of SMM and CPET related parameters, including peak oxygen uptake (VO(2)peak), oxygen pulse (VO(2)/HR), oxygen uptake efficiency slope (OUES) and other cardiorespiratory endurance indicators were collected, to do correlation analysis. Results: There were 402 patients enrolled, with average age (71±5) years, including 283 cases of male (70.40%) and 119 cases of female patients (29.60%). There were 62 patients with acute myocardial infarction (15.42%), 113 patients with old myocardial infarction (28.11%), and 227 patients diagnosed with angina pectoris (56.47%). The percentage of SMM was correlated to CRF.The percentage of SMM[97.00 (92.05, 102.10)%] and VO(2)/HR (r=0.231, P<0.001) and OUES (r=0.264, P<0.001) were positively correlated.Body mass index was negatively correlated with VO(2)peak(r=-0.162, P=0.001). Visceral fat area (VFA) was also negatively correlated with VO(2)peak(r=-0.126, P=0.016). Multiple linear regression analysis showed that Body mass index and VFA were negatively correlated with VO(2)peak (r=-0.204, P=0.014; r=-0.031, P=0.013). The percentage of SMM was positively independently correlated with OUES(r=11.020, P<0.001). Conclusions: Muscle content is positively correlated with exercise capacity of patients.The percentage of skeletal muscle mass determines the core index of cardiorespiratory fitness, such as the slope of oxygen pulse and oxygen uptake efficiency.These indexes can be used as an important criterion for predicting and guiding rehabilitation exercise in patients with coronary heart disease.
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Affiliation(s)
- Y P Wang
- Department of Cardiology and Institute of Vascular Medicine, Peking University Third Hospital; NHFPC Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides; Key Laboratory of Molecular Cardiovascular Science, Beijing 100191, China
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Wang Z, Zhou L, Xu DL, Xu SL. [Classification of the anatomical structures of maxillary central incisor root by cone-beam CT]. Zhonghua Kou Qiang Yi Xue Za Zhi 2017; 52:656-660. [PMID: 29972943 DOI: 10.3760/cma.j.issn.1002-0098.2017.11.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Objective: To examine the root position of the maxillary central incisors and to provide clinical reference before the immediate implant placement. Methods: Cone-beam CT (CBCT) data of the maxillary central incisors of 934 patients (934 incisors) was selected and the root position classsified. The sagittal root position in the alveolar bone was classified as buccal, middle, or palatal. The buccally positoined type was further classified into three subtypes of Ⅰ,Ⅱ, and Ⅲ. Results: Most of the maxillary incisor root (95.4% [891/934]) was positioned buccally. Among the buccal-type incisors, the subtypes Ⅰ, Ⅱ and Ⅲ accounted for 47.5% (423/891), 44.2% (394/891), and 8.3% (74/891). In the 4 mm apical to the cemento-enamel junction and the middle of the root, the thickest buccal bone wall was 0.86 and 0.95 mm, the thickest palatal bone wall was 1.65 and 2.37 mm. In the apical location, the thickest buccal bone wall was 1.89 mm, the thickest palatal bone wall was 7.83 mm. Conclusions: Most of the maxillary central incisors studied are positioned buccally, and half of these patients have adequate buccal bone and are suitable for immediate implant placement.
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Affiliation(s)
- Z Wang
- Dental Implant Center, Stomatological Hospital, Southern Medical University, Guangzhou 510280, China(Present address: Department of Stomatology, First People's Hospital of Baiyun District, Guangzhou 510400, China)
| | - L Zhou
- Dental Implant Center, Stomatological Hospital, Southern Medical University, Guangzhou 510280, China
| | - D L Xu
- Dental Implant Center, Stomatological Hospital, Southern Medical University, Guangzhou 510280, China
| | - S L Xu
- Dental Implant Center, Stomatological Hospital, Southern Medical University, Guangzhou 510280, China
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Zhang HR, Tao JL, Lu SF, Xu SL, Gu YH. [From Treatment of Stress Disease by Acupuncture to Correlation between Acupuncture and Stress]. Zhen Ci Yan Jiu 2016; 41:560-564. [PMID: 29071902] [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
Stress disease is a body functional disorder caused by harmful stimuli overwhelming the nonspecific adaptive capabilities. Numerous evidence proved the feasibility of acupuncture in treating stress diseases. This paper aims at exploring new perspective in the study on the underlying mechanism of acupuncture in the treatment of stress diseases. The discussion is conducted by summarizing the pathogenesis of stress diseases and mechanisms of its treatment with acupuncture, in exploring the related factors of acupuncture and stress response, and the correlation between the two from the regulatory pathway, medium, characteristics and manifestations.
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Affiliation(s)
- Hong-Ru Zhang
- Second School of Clinical Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Jia-Lei Tao
- Fist School of Clinical Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Sheng-Feng Lu
- Second School of Clinical Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Sen-Lei Xu
- Second School of Clinical Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Yi-Huang Gu
- Second School of Clinical Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China
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21
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Wang Z, Wang B, Shi Y, Xu C, Xiao HL, Ma LN, Xu SL, Yang L, Wang QL, Dang WQ, Cui W, Yu SC, Ping YF, Cui YH, Kung HF, Qian C, Zhang X, Bian XW. Oncogenic miR-20a and miR-106a enhance the invasiveness of human glioma stem cells by directly targeting TIMP-2. Oncogene 2014; 34:1407-19. [DOI: 10.1038/onc.2014.75] [Citation(s) in RCA: 91] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2013] [Revised: 01/03/2014] [Accepted: 01/12/2014] [Indexed: 12/15/2022]
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Li LX, Gao Y, Xu SL. Role of psychological intervention in fetoscopic laser surgery of twin-to-twin transfusion syndrome. CLIN EXP OBSTET GYN 2013; 40:561-564. [PMID: 24597256] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
OBJECTIVE This study aims to investigate the influence of application of psychological intervention in fetoscopic laser surgery of twin-to-twin transfusion syndrome (TTTS) on perinatal outcome. MATERIALS AND METHODS A total of ten cases of pregnant women diagnosed with TTTS from January 2007 to December 2009 in the present hospital were selected. Their gestational weeks ranged from 16 to 29 weeks. Under the location of B ultrasound, the method of intra-amniotic fetoscopic laser occlusion of chorioangiopagous vessels (FLOC) plus amnioreduction was conducted for treatment. Contemporarily, psychological intervention was also carried out. RESULTS Preoperative, intraoperative, and postoperative behavior controls of all pregnant women were good, and all operations were successfully completed to achieve the desired purpose of rehabilitation discharge. CONCLUSION Fetoscopic laser surgery is an effective treatment for TTTS and competent psychological intervention is one of important measures for successful operation and pregnant woman rehabilitation discharge.
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Affiliation(s)
- L X Li
- The Affiliated Hospital of Hangzhou Normal University, Hangzhou, China
| | - Y Gao
- The Affiliated Hospital of Hangzhou Normal University, Hangzhou, China
| | - S L Xu
- The Affiliated Hospital of Hangzhou Normal University, Hangzhou, China
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Jiang H, Liu CX, Feng JB, Wang P, Zhao CP, Xie ZH, Wang Y, Xu SL, Zheng CY, Bi JZ. Granulocyte colony-stimulating factor attenuates chronic neuroinflammation in the brain of amyloid precursor protein transgenic mice: an Alzheimer's disease mouse model. J Int Med Res 2010; 38:1305-12. [PMID: 20926003 DOI: 10.1177/147323001003800412] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Recent evidence suggests that inflammatory mechanisms contribute significantly to the progression of Alzheimer's disease. Granulocyte colony-stimulating factor (G-CSF) is an anti-inflammatory immunomodulator, but the mechanism of its anti-inflammatory effect is unclear. This study was designed to investigate whether G-CSF could inhibit inflammation in a mouse model of Alzheimer's disease through an α7 nicotinic acetylcholine receptor (α7 nAChR) pathway. Mice transgenic for the V171I mutant amyloid precursor protein (APP) were injected subcutaneously with G-CSF 50 μg/kg per day or phosphate-buffered saline (PBS; control group) for 7 days, and wild-type C57/BL6 mice were injected with PBS daily for 7 days. Mice were killed on days 7, 14 and 28 after treatment began. Levels of α7 nAChR protein were significantly increased and levels of interleukin-1β, tumour necrosis factor-α and nuclear factor-κB (NF-κB) protein were significantly decreased in the brain of APP transgenic mice in response to G-CSF. Levels of α7 nAChR protein correlated negatively with NF-κB levels. It is concluded that G-CSF might attenuate inflammation by down-regulating NF-κB and up-regulating α7 nAChR in the brain of APP transgenic mice, indicating a potential new therapeutic approach to Alzheimer's disease.
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Affiliation(s)
- H Jiang
- Department of Neurology, Second Hospital of Shandong University, Jinan, China
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24
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Huang H, Bi XG, Yuan JY, Xu SL, Guo XL, Xiang J. Combined CD4+ Th1 effect and lymphotactin transgene expression enhance CD8+ Tc1 tumor localization and therapy. Gene Ther 2005; 12:999-1010. [PMID: 15789061 DOI: 10.1038/sj.gt.3302486] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Type 1 T cells are the major components in antitumor immunity. The lack of efficient CD8(+) cytotoxic T (Tc) cell infiltration of tumors is a major obstacle to adoptive Tc-cell therapy. We have previously demonstrated that adenovirus (AdV)-mediated transgene lymphotactin (Lptn) expression by intratumoral AdVLptn injection and intravenous CD4(+) helper T (Th) cell transfer can enhance Tc-cell tumor infiltration and eradication of early stage tumors (5 mm in diameter). In this study, we generated ovalbumin (OVA)-specific Tc1 and Th1 cells in vitro by incubation of OVA-pulsed dendritic cells with naive T cells from T-cell receptor (TCR) transgenic OT I and OT II mice. We then investigated the potential synergy of Th1 help effect and Lptn transgene expression in Tc1-cell therapy of well-established OVA-expressing EG7 solid tumors (7 mm in diameter). Our data showed that a combined adoptive T-cell therapy of Th1 (2.5 x 10(6) cells per mouse) and Tc1 (5 x 10(6) cells per mouse) resulted in regression of all eight (100%) transgene Lptn expressed EG7 tumors, which is significantly higher than four from eight (50%) in AdVLptn/Tc1 group and two from eight (25%) in Tc1/Th1 group (P < 0.05). The amount of transferred Tc1 cells detected in Lptn-expressed tumors with Th1 treatment is 0.72%, which is significantly higher than those of AdVLptn (0.22%), Th1 (0.41%) and the control AdVpLpA (0.09%) treatment groups (P < 0.05). Enhanced Tc1 tumor localization may be derived from the chemotactic effect of Lptn and the proliferative effect of Th1 and Lptn. This novel therapeutic strategy with enhancement of Tc1 tumor localization in the therapy of well-established tumors may become a tool of considerable conceptual interest in the implementation of future clinical objectives.
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MESH Headings
- Adenoviridae/genetics
- Adoptive Transfer/methods
- Animals
- CD8-Positive T-Lymphocytes/immunology
- Cell Line, Tumor
- Cell Proliferation
- Chemokines, C
- Chemotaxis, Leukocyte
- Female
- Gene Expression
- Genetic Therapy/methods
- Genetic Vectors/administration & dosage
- Lymphocytes/immunology
- Lymphocytes, Tumor-Infiltrating
- Lymphokines/genetics
- Mice
- Mice, Inbred C57BL
- Mice, Transgenic
- Models, Animal
- Neoplasms, Experimental/immunology
- Neoplasms, Experimental/therapy
- Ovalbumin/immunology
- Receptors, Antigen, T-Cell/genetics
- Reverse Transcriptase Polymerase Chain Reaction
- Sialoglycoproteins/genetics
- Th1 Cells/immunology
- Transduction, Genetic/methods
- Transgenes
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Affiliation(s)
- H Huang
- Department of Oncology, Research Unit, Saskatchewan Cancer Agency, Saskatoon, Saskatchewan, Canada
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Abstract
The present study investigated the effect of galanin on wide-dynamic range (WDR) neuron activity in the dorsal horn of the spinal cord of rats. The evoked discharge of WDR neurons was elicited by transdermic electrical stimulation applied on the ipsilateral hindpaw of rats. Galanin was administered directly on the spinal dorsal surface of L3-L5. The evoked discharge frequency of the WDR neurons decreased significantly after the administration of galanin and the effect lasted for more than 30 min. Furthermore, the inhibitory effect of galanin on the evoked discharge frequency of WDR neurons was blocked by following administration of the galanin antagonist galantide, indicating that the inhibitory effect of galanin on the activity of WDR neurons was induced by activating galanin receptors in the dorsal horn of the spinal cord. The results suggest that galanin has an inhibitory role in the transmission of presumed nociceptive information in the dorsal horn of the spinal cord in rats.
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Affiliation(s)
- L C Yu
- Department of Physiology, College of Life Sciences, and National Laboratory of Biomembrane and Membrane Biotechnology, Peking University, 100871, Beijing, People's Republic of China.
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Zhang SW, Xu SL, Cai MM, Yan J, Zhu XY, Hu Y, Gu JX. Effect of p58GTA on beta-1,4-galactosyltransferase 1 activity and cell-cycle in human hepatocarcinoma cells. Mol Cell Biochem 2001; 221:161-8. [PMID: 11506180 DOI: 10.1023/a:1010932211745] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Beta-1,4-galactosyltransferase 1 (beta1,4-GT 1) is the key enzyme transferring galactose to the terminal N-acetylglucosamine (GlcNAc) forming Galbeta3-->4GlcNAc structure in the Golgi apparatus. In addition, it also serves as a cell adhesion molecule by recognizing and binding to terminal GlcNAc of glycoconjugates on the adjacent cell surface and matrix through a subpopulation of the enzyme distributed on the cell surface. Transient expression of the p58GTA protein kinase, which belongs to the p34cdc2-related supergene family, could enhance beta1,4-GT 1 total activity in COS cells. In this study, the p58GTA interaction with beta1,4-GT 1 was confirmed using an in vitro assay with the TNT Coupled Reticulocyte Lysate System. An expression vector containing p58GTA was stably transfected into 7721 cells, a human hepatocarcinoma cell line, expression was confirmed by Northern and Western blot analyses. The cells transfected with p58GTA (p58GTA/7721) contained 1.9 times higher total beta1,4-GT 1 activity and 2.6 times higher cell-surface beta1,4-GT 1 activity than the mock transfected cells (pcDNA3/7721). However, Ricinus communis agglutinin-I lectin blot analysis revealed that the enhanced beta1,4-GT1 activity did not increase the Galbetal-->4GlcNAc groups on most of the membrane proteins in p58GTA/7721 cells. By flow cytometry analysis, it was found that the p58GTA/7721 cells were G2/M phase arrested, compared with the pcDNA3/7721 cells. These results suggest that the p58GTA stable transfection into human hepatocarcinoma cells could enhance the two beta1,4-GT1 subcellular pool activities independently and change its cell-cycle without modifying the beta-1,4-linked galactose residues on most membrane proteins.
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Affiliation(s)
- S W Zhang
- Gene Research Center, Medical Center of Fudan University (Former Shanghai Medical University), Shanghai, PR China
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Chen JM, Xu SL, Wawrzak Z, Basarab GS, Jordan DB. Structure-based design of potent inhibitors of scytalone dehydratase: displacement of a water molecule from the active site. Biochemistry 1998; 37:17735-44. [PMID: 9922139 DOI: 10.1021/bi981848r] [Citation(s) in RCA: 103] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Scytalone dehydratase (SD) is a molecular target of inhibitor design efforts aimed at protecting rice plants from the fungal disease caused by Magnaporthe grisea. As determined from X-ray diffraction data of an SD-inhibitor complex [Lundqvist et al. (1994) Structure (London) 2, 937-944], there is an extended hydrogen-bonding network between protein side chains, the inhibitor, and two bound water molecules. From models of SD complexed to quinazoline and benztriazine inhibitors, a new class of potent SD inhibitors involving the displacement of an active-site water molecule were designed. We were able to increase inhibitory potency by synthesizing compounds with a nitrile functionality displayed into the space occupied by one of the crystallographic water molecules. Sixteen inhibitors are compared. The net conversion of potent quinazoline and benztriazine inhibitors to cyanoquinolines and cyanocinnolines increased binding potency 2-20-fold. Replacement of the nitrile with a hydrogen atom lowered binding affinity 100-30,000-fold. X-ray crystallographic data at 1.65 A resolution on a SD-inhibitor complex confirmed that the nitrile functionality displaced the water molecule as intended and that a favorable orientation was created with tyrosines 30 and 50 which had been part of the hydrogen-bonding network with the water molecule. Additional data on inhibitors presented herein reveals the importance of two hydrogen-bonding networks toward inhibitory potency: one between Asn131 and an appropriately positioned inhibitor heteroatom and one between a bound water molecule and a second inhibitor heteroatom.
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Affiliation(s)
- J M Chen
- E.I. DuPont de Nemours Agricultural Products, Stine-Haskell Research Center, Newark, Delaware 19714, USA
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28
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Xu SL. [A study on verbal fluency in patients with cerebral infarction]. Zhonghua Shen Jing Jing Shen Ke Za Zhi 1988; 21:204-7, 254. [PMID: 3234148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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29
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Xu SL. [A study of memory disorder in patients with cerebral infarction]. Zhonghua Shen Jing Jing Shen Ke Za Zhi 1988; 21:212-5, 254-5. [PMID: 3234150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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30
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Peng Y, Guan CF, Xu SL, Lin Y, Tian YY, Ma C, Bao YQ, Wang CB, Ma JR. Effects of laser radiation and photobustion over zusanli on the blood immunoglobulin and lymphocyte ANAE of the healthy aged. J TRADIT CHIN MED 1987; 7:135-6. [PMID: 3448394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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31
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Liu WP, Xu SL. [Midline malignant reticulosis: its pathologic diagnosis and biological behavior]. Zhonghua Bing Li Xue Za Zhi 1986; 15:183-6. [PMID: 2953454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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32
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Cao M, Chen QC, Xu SL, Liu ZM. [An enzyme histochemical study of Hodgkin's disease: the origin of Reed-Sternberg cells and their derivatives]. Hua Xi Yi Ke Da Xue Xue Bao 1986; 17:148-51. [PMID: 3533751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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33
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Ha XW, Sun XM, Xie JG, Fan XJ, Zhang YH, Mei QC, Shen H, Xu SL, Zhang RG. Clinical use of hematoporphyrin derivative in malignant tumors. Chin Med J (Engl) 1983; 96:754-8. [PMID: 6233105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
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34
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Xu SL. [A preliminary study of short-term memory in patients with temporal and frontal lobe tumor (author's transl)]. Zhonghua Shen Jing Jing Shen Ke Za Zhi 1982; 15:39-42. [PMID: 7094728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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35
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Zhang RB, Xu SL, Li Y. [Separation of artemisinine and its derivatives by reversed phase high performance liquid chromatography (author's transl)]. Yao Xue Xue Bao 1981; 16:460-5. [PMID: 7270174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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