1.Research Progress of Feasibility of Dendritic Cell Antifungal Vaccines.
Guoxin FAN ; Long WANG ; Yueye WANG ; Peilin ZHAO
Journal of Biomedical Engineering 2015;32(3):684-687
Fungal infection is an important clinical problem for patients with immune deficiency or immunosuppression. With deadly fungus infection case increasing, the development of antifungal vaccine attracts the attention of researchers. Dendritic cell (DC) is the unique antigen presenting cell (APC) to trigger the antifungal immune reaction, and recent studies indicate that the targeted vaccination strategy based on DC have prospective antifungal potentials. In this paper, we review the antifungal immunity mechanism and recent development of the targeted DC antifungal strategy.
Dendritic Cells
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Fungal Vaccines
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therapeutic use
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Humans
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Mycoses
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immunology
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therapy
2.ANALYSIS OF MAJOR PROTEINS OF THE TWELVE STANDARD SEROVARS AND SIX LOCAL ISOLATES OF UREAPLASMA UREALYTICUM
Yuankang YE ; Changhong YIN ; Yueye WANG ; Deyuan LU ;
Microbiology 1992;0(05):-
More than 20 protein bands with molecular weights of 19—175 KD in 18 strains of Ureaplosma urealyticum were detected by SDS-PAGE and thin layer scanning analysis. The molecular weights of major proteins were between 32 KD and 140 KD. Among them, the percentages of 67, 78 and 140 KD proteins were similar in all strains, but those of 32, 43 and 94 KD proteins were greatly different. Thus, Ureaplasma urealyticum can be divided into two groups: group A including serovars 2,5,7,9,10,11,12, and local isolates C,D, E, F; group B including serovars 1,3,6,13,14, and local isolates A, B. The serovars of Ureaplasma urealyticum could not be distinguished by using SDS-PAGE alone.
3.Study on clinical characteristics of metabolic-based obesity classification
Xingchun WANG ; Yueye HUANG ; Hang SUN ; Han CAO ; Jiaqi CHEN ; Le BU ; Shen QU
Chinese Journal of Endocrinology and Metabolism 2015;(8):678-683
Objective This study aimed to explore clinical characteristics of four types of obesity based on metabolic classification. Methods Forty-eight obese patients were divided according to their clinical characteristics into 4 groups including metabolic healthy obesity (MHO), hypometabolic obesity (LMO), hypermetabolic obesity (HMO), and metabolic obesity with inflammation (IMO). 20 normal weight individuals were also recruited as a control group. Body fat, body weight, visceral index, and basal metabolism were measured by Omron body fat meter. Fat content and its distribution were measured by dual energy X-ray absorptiometry. All participating patients underwent various tests for 75 g oral glucose tolerance, blood glucose, insulin, C peptide. Lipid profile, thyroid function and sex hormones levels, and inflammation factors were also measured. Results (1)Patients in MHO group had higher body fat content, but had no metabolic disorder and inflammation. Their hormones levels were normal. (2) Lower metabolic rate and lower hormones levels were found in the patients in LMO group with increasing visceral fat. Trunk/subcutaneous fat mass was significantly higher than that in MHO group(1. 19 ± 0. 25 vs 0. 97 ± 0. 32, P<0. 05). There were abnormal lipid and glucose metabolism in LMO group. The insulin action index was significantly lower than that in MHO group(0. 006 6 ± 0. 002 7 vs 0. 012 1 ± 0. 009 5, P<0. 05). The area under the curve of glucoseconcentrationwassignificantlyhigherinLMOgroupthanthatinMHOgroup[(18.71±8.68vs12.70±4.63) mmol/L, P<0. 05]. (3)Heart rate and blood pressure were higher in HMO group. The heart rate was significantly increased compared with that in MHO group [(90. 50 ± 8. 24 vs 73. 20 ± 14. 11) beat/min, P<0. 05]. The waist circumference was significantly larger than that in MHO group [(111. 88 ± 10. 54 vs 98. 05 ± 15. 56) cm, P<0. 05]. (4) In IMO group, insulin action index was significantly lower than MHO group (0. 007 0 ± 0. 003 3 vs 0.0121±0.0095,P<0.05). ThetrunkfatmassanduricacidlevelsweresignificantlyhigherthanMHOgroup [(17236.38±4610.60vs15816.10±5453.42)gand(468.28±121.32vs376.84±97.14) μmol/L,bothP<0. 05]. Patients in IMO group had acanthosis nigricans, but their glucose level was relatively normal. Conclusion The metabolic-based obese diagnosis is essential for understanding the obesity etiology and providing individualized treatment.
4.The specific mechanism of PGE2 inhibiting TDO2 expression and activity regulation of macrophage function changes
Yi Wang ; Siyu Li ; Yueye Wang ; Weibo Dong ; Meng Cheng ; Wei Wei ; Yan Chang
Acta Universitatis Medicinalis Anhui 2024;59(7):1107-1115
Objective :
To investigate the effects of tryptophan-2,3-dioxygenase ( TDO2 ) on collagen-induced ar- thritis,the expression of CIA in mice and the specific mechanism by which prostaglandin E2 (PGE2) inhibits the expression and activity of TDO2 and thus regulates the function of macrophages.
Methods :
Type Ⅱ collagen in- duced the CIA model in DBA /1J mice.The ankle joint injury of CIA mice was detected by X-ray.The expression of TDO2 in ankle joint and spleen was detected by immunohistochemistry.Changes of TDO2 expression in perito- neal macrophages (PMs) were detected by qPCR and immunofluorescence.TDO2 expression was detected by small interference in RAW264. 7 cells,TDO2 inhibitor 680C91,PGE2 stimulation with different concentrations (0. 1,1, 10 μmol / L) and EP4 receptor agonist CAY10598.qPCR and Western blot were used to detect TDO2 expression. The phagocytosis and polarization of macrophages were detected by flow cytometry.The activity of TDO2 was detec- ted by colorimetry.
Results :
Compared with normal mice,CIA mice had larger soft tissue swelling in ankle,and increased TDO2 expression in synovium,spleen and PMs.In RAW264. 7 cells,TDO2 expression was significantly inhibited after small interference , TDO2 inhibitor 680C91 , PGE2 stimulation , and EP4 receptor agonist CAY10598,macrophage phagocytosis decreased ,and M1 / M2 ratio decreased ( P <0. 05 ) . Colorimetric results showed that the activity of TDO2 was inhibited after stimulation of PGE2 and EP4 agonist CAY10598 in RAW264. 7 cells (P<0. 05) .
Conclusion
The increased expression of TDO2 in macrophages may promote synovial injury in CIA mice,and PGE2 regulates the function of macrophages by inhibiting the expression and activity of TDO2 by ac- tivating EP4 receptor.