2.Expression of HFGL2/ Fibroleukin in Peripheral Blood Mononuclear Cell in Patients with Systemic Lupus Erythematosus and Its Clinical Significance
Xiaofeng YAN ; Yating TU ; Nengxing LIN
Chinese Journal of Dermatology 1995;0(01):-
Objective To investigate the relationship between procoagulation of HFGL 2 and abnormality of coagulation in patients with systemic lupus erythematosus (SLE) by detecting the expression of HFGL2/fibroleukin in peripheral blood mononuclear cell(PBMC) of SLE patients. Methods A polyclonal antibody against HFGL2 was applied to detecting the expression of HFGL2 protein in 32 SLE patients and 15 healthy volunteers by immunohistochemistry. Semi-quantitative measurement of HFGL2 expression in the blood specimen was done with high multiple image analytical system(HMIAS). Results The expression of HFGL2 in PBMC from 23 active SLE patients was significantly higher than that in the controls, which showed a positive correlation with the disease activity. Conclusion The expression of HFGL2 in PBMC is probably correlated with the pathogenesis and disease activity of SLE.
3.Serum biomarkers in chronic obstructive pulmonary disease
Xue HE ; Tiao LI ; Yating PENG ; Ping CHEN ; Yan CHEN
Journal of Chinese Physician 2017;19(2):314-318
Chronic obstructive pulmonary disease (COPD) is a chronic airway diseases,which leads to heavy social and economic burden to our country.We can use serum biomarkers to evaluate diagnosis,classification,treatment and prognosis of COPD.The change of biomarkers provides lots of valuable clinical information.A variety of biomarkers are associated with the severity of lung function,which can be used to judge disease severity.Some indicators are related to the diagnosis of acute exacerbation or hospitalization risk.Some serum markers would guide therapy and can be effectively applied to clinical work.Study of COPD serum biomarkers would provide more reference information for clinical physicians in diagnosis,treatment and prognosis of COPD.
4.Targeted killing of malignant melanoma cells by aclarubicin liposome conjugated with vascular endothelial growth factor
Hongxiang CHEN ; Qiang TONG ; Yue QIAN ; Yan WU ; Aiping FENG ; Zhihong WU ; Xiaofeng YAN ; Yating TU
Chinese Journal of Dermatology 2008;41(7):429-432
Objective To evaluate the targeted killing of malignant melanoma cells by aclarubicin liposomes conjugated with vascular endothelial growth factor(ADM-VEGF-SSL)in vitro.Metheds To detect the binding abilitv of liposomes to malignant melanoma(MM)cells,the human malignant melanoma cell line A375 was cultured in the presence of ADM-VEGF-3H-SSL or ADM-3H-SSL for 2 days followed by the detection of radioactivity of these cells.Then.A375 cells were cultured with various concentrations(0.01,0.1,1,10,100 mol/L)of ADM-VEGF-SSL,ADM-SSL or free ADM for 48 hours in the 48-hour cytotoxity test,or for 0.5 hour followed by another 48-hour culture in drug-free medium in the 0.5-hour cytotoxity test.After that,MTT assay was used to detect the survival rate of these cells.Results ADM-VEGF-SSL could specifically bind to and kill A375 cells.The binding rate of ADM-VEGF-SSL was 2.15 folds as high as that of ADM-SSL.The survival rate of A375 cells after being treated with ADM-VEGF-SSL for 48 hour was similar to that with flee ADM(P>0.05).but lower than that with ADM-SSL(P<0.05),while the survival rate of melanocytes treated with ADM-VEGF-SSL was higher than that with free ADM or ADM-SSL(both P<0.05).As shown by the 0.5-hour cytotoxity test.shortening the treatment course did not attenuate the effect of ADM-VEGF-SSL on A375 cells.Conclusions ADM-VEGF-SSL can specifically recognize A375 cells.efficiently deliver adriamycin into tumor cells,markedly inhibit the proliferation of A375 cells,and eventually,a targeted kill of these cells is realized.
5.Risk factors of prenatal depression and anxiety in pregnant women
Ting YANG ; Hao HE ; Caiying MAO ; Changliang JI ; Shue ZENG ; Yating HOU ; Yan DENG ; Shuyun YANG
Chinese Mental Health Journal 2015;(4):246-250
Objective:To explore the related risk factors of antepartum depression and anxiety,and to provide the theoretical support for early screening,clinical intervention and prevention of antepartum depression and anxiety.Methods:At the time of 28 weeks of prenatal examination,the Edinburgh Postnatal Depression Scale (EP-DS),Self-Rating Anxiety Scale (SAS)were used to survey 2112 pregnant women who were selected from Maternal and Child Health Hospital of Kunming City.Non conditional logistic regression analysis was used to explore the re-lated risk factors of prenatal depression and anxiety.Results:At the 28 weeks of pregnancy,the detection rate of de-pression symptoms and anxiety symptoms were 25.4% and 6.6%.Logistic regression analysis showed that the risk factors for perinatal depression symptoms were younger age (OR =0.80,95%CI:0.68 -0.94),not stick to work during pregnancy (OR =1.18,95%CI:1.02 -1.36),not satisfied with the living environment (OR =1.50,95%CI:1.23 -1.83),expectations for boys (OR =0.86,95%CI:0.77 -0.96),not only daughter (OR =1.37,95%CI:1.06 -1.76),unplanned pregnancy (OR =1.38,95%CI:1.10 -1.72).The risk factors for perinatal anxiety symp-toms were being not satisfied with the living environment (OR =1.64,95%CI:1.19 -2.26),not harmonious with her husband (OR =2.01,95%CI:1.20 -3.37),unplanned pregnancy (OR =1.50,95%CI:1.05 -2.14).Conclu-sion:It suggests that the pregnant women with younger age,less working during pregnancy,being not satisfied with the living environment,having more expectations for boys,being not only daughter,with unplanned pregnancy are more likely to suffer from antepartum depression;those being not satisfied with living environment,having harmoni-ous relation with her husband,and with unplanned pregnancy are more likely to suffer from antepartum anxiety.
6.Study on Improvement Effect of Lanthanum Hydroxide on Chronic Renal Failure Hyperphosphatemia in Rats
Yan WU ; Dandan LIU ; Hong ZHANG ; Miao SU ; Yating CUI ; Zixing MA ; Guojun ZHAO ; Gang LI
China Pharmacy 2017;28(4):469-471,472
OBJECTIVE:To study the improvement effect of lanthanum hydroxide on chronic renal failure (CRF) hyperphos-phatemia in rats. METHODS:CRF hyperphosphatemia rat model were induced and then randomly divided into model group,lan-thanum carbonate group [0.3 g/(kg·d)],calcium carbonate group [4.2 g/(kg·d)] and lanthanum hydroxide high-dose,medium-dose and low-dose groups [1.5,1,0.5 g/(kg·d)] with 10 rats in each group. They were given adenine 0.2 g/(kg·d)intragastrically in the morning,and then given relevant medicine intragastrically in the afternoon;a week later,they stopped taking adenine but con-tinued to take relevant medicine for 22 d. 10 normal rats were selected as normal control group. General examination was conduct-ed,and renal coefficient,serum contents of calcium,phosphorus,PTH,creatinine(Scr)and usea nitrogen(BUN)were detected after last medication as well as renal pathological change. RESULTS:Compared with normal control group,model group showed CRF sign,renal coefficient,the contents of phosphorus,PTH,Scr and BUN were increased,while the content of calcium was de-creased(P<0.01);renal section showed obvious pathological characteristics. Compared with model group,CRF sign of rats were improved in lanthanum carbonate group,calcium carbonate group and lanthanum hydroxide groups. The renal coefficient (except for lanthanum hydroxide high-dose group),serum contents of phosphorus(except for calcium carbonate group),PTH(except for lanthanum hydroxide low-dose group and calcium carbonate group),Scr(except for lanthanum hydroxide low-dose group and calci-um carbonate group)and BUN were all decreased,while serum content of calcium and calcium-phosphorucs product(only in calci-um carbonate group)was increased(P<0.05 or P<0.01). There was no statistical significance in other difference. The renal sec-tion pathological characteristics were improved. CONCLUSIONS:Lanthanum hydroxide can improve renal function and reduce the level of serum phosphorus in CRF hyperphosphatemia model rats.
7.Expression of transporter associated with antigen processing and major histocompatibility complex class-Ⅰ molecule in malignant melanoma cell lines
Lin WANG ; Juan TAO ; Yan LI ; Yeqiang LIU ; Jing YANG ; Yating TU
Chinese Journal of Dermatology 2008;41(11):723-725
Objective To explore the expression of transporter associated with antigen processing (TAP) and major histocompatibility complex class (MHC)-Ⅰ molecule in malignant melanoma cell lines. Methods Three malignant melanoma cell lines, including A375, A875, and KZ28 cells as well as normal melanocytes were cultured. Western blot, reverse transcription PCR and flow cytometry were used to detect the protein and mRNA expression of TAP as well as the membrane expression of MHC-Ⅰ in these cells. Results A significant decrease was observed in the expression of TAP mRNA (t = 5.89, 4.45 and 4.57 re-spectively, all P< 0.01) and protein (t= 5.46, 4.32 and 4.67 respectively, all P< 0.01) in A375, A875 and KZ28 cells compared with the melanocytes, with the strongest decrease occurring in A375 cells. Similarly, the expression of MHC-Ⅰ molecule was significantly lower in A375, A875 and KZ28 cells than that in the melanocytes (t= 6.16, 5.22 and 5.61 respectively, all P< 0.01).Conclusions The protein and mRNA expres-sion of TAP is down-regulated in three melanoma cell lines A375, A875 and AZ28, which may contribute to the escape of melanoma cells from human immune surveillance.
8.Expression of cellular FLICE-inhibitory protein in peripheral blood and lesions of patients with psoriasis
Juan TAO ; Yan LI ; Jing DONG ; Lin WANG ; Yeqiang LIU ; Jing YANG ; Yating TU
Chinese Journal of Dermatology 2008;41(6):377-379
Objective To investigate the expression and distribution of cellular FLICE-inhibitory protein (c-FLIP) in peripheral blood and lesions of psoriatic patients. Methods Peripheral blood and skin samples were obtained from 30 patients with psoriasis vulgaris and 20 normal controls. Flow cytometry was used to detect intracellular c-FLIP protein in peripheral T and B lymphocytes, immunohistochemistry to examine the expression of c-FLIP in lesional tissue. Results Based on the positivity rate of c-FLIP, there was a significant increase in T lymphocytes in active psoriasis compared with regressive psoriasis and normal controls (6.32%±1.17% vs 2.64%±0.74% and 2.28%±0.54%, P<0.01 and 0.05, respectively), while no significant difference was found in B lymphocytes among these three groups (0.78%±0.16%, 0.71%±0.32%, 0.69%±0.18%, respectively, P>0.05). The expression intensity of c-FLIP in keratinocytes was also higher in active psoriasis than in regressive psoriasis and normal controls (89.73±5.24 vs 117.40±7.50,121.58±7.93, P<0.01 and 0.05 respectively), and there was no difference between regressive psoriasis and normal controls (P>0.05). Conclusions c-FLIP is highly expressed in lesions and peripheral T lymphocytes of patients with active psoriasis, suggesting the possible involvement of c-FLIP in the proliferation of T lymphocytes in psoriasis.
9.Expression of cellular FLICE inhibitory proteins in peripheral blood B lymphocytes in patients with systemic lupus erythematosus
Jing DONG ; Juan TAO ; Yan LI ; Yeqiang LIU ; Jing YANG ; Zhijian TAN ; Yating TU
Chinese Journal of Dermatology 2009;42(4):226-229
Objective To study the expression of cellular FLICE inhibitory proteins(c-FLIP)in peripheral blood B lymphocytes in patients with systemic lupus erythematosus (SLE)and its correlation with clinical features.Methods Blood samples were obtained from 53 patients with SLE and 30 normal human controls.Flow cytometry and ELISA were performed to measure the expression of c-FLIP in pefipheral blood B lymphocytes and serum levels of IL-4 and IL-10,respectively.Relevant laboratory examinations were carried out for these patients.SLE disease activity index(SLEDAI)score was calculated for patients.Results The positivity rate of c-FLIP in B lymphocytes was 3.11%±0.70%in 18 patients with active SLE.significantly higher than that in 35 patients with inactive SLE (0.78%±0.28%)and normaI controls(0.68%±0.12%),while no statistical difierence was found between inactive patients and controls(t=1.56,P>0.05).In SLE patients,the expression of c-FLIP showed a positive correlation with SLEDAl score(r=0.96.P<0.05),erythrocyte sedimentation rate(r=0.96,P<0.01),serum level of C reactive protein(r=0.92.P<0.01)and the titer of antinuclear antibodies(r=0.86,P<0.01),whereas in 36 patients with leucopenia.a negative correlation was noticed between white blood cell count and the expression level of c-FLIP(r=-0.94,P<0.0 1).The 23 patients with lupus nephritis had a higher level of c-FLIP than those without lupus nephritis(3.04%±1.09%vs 1.76%±1.09%,t=4.23,P<0.05).Additionally.the expression of c-FLIP positively correlated with the serum level of IL-4 and IL-10(r=0.80,0.89.respectively,both P<0.01).Conclusions In patients with active SLE,the expression of c-FLIP is upregulated in peripheral blood B lymphocytes,and positively correlated with the severity of SLE as well as the serum level of IL-4 and IL-10.The upregulation of c-FLIP in B cells might play a certain role in deficient apoptosis or clearance of activated B cells in SLE.
10.Expressions of hypoxia-inducible factor 1α and glucose transporter type 1 in psoriatic lesions
Jing YANG ; Juan TAO ; Jiejie LU ; Yan LI ; Yeqiang LIU ; Yating TU
Chinese Journal of Dermatology 2009;42(3):154-156
Objective To investigate the expression of glucose transporter type 1(GLUT-1)and hypoxia-inducible factor 1 (HIF-1)α in psoriatic lesions,and to explore their correlations with keratinocyte proliferation.Methods Biopsy specimens were obtained from 30 patients with psoriasis and 20 normal human controls.Immunohistochemistry and Western blotting were used to examine the protein expression of GLUT-1 and HIF-1α in these specimens.Results GLUT-1 and HIF-1α were mainly expressed in the basal layer of the control skin,but throughout the whole epidermis of psoriatic lesions.A significant increase was observed in the expression of GLUT-1 and HIF-1α in psoriatic lesions compared with that in the control skin (botb P<0.01).In the case of psoriatic lesions,both the expression of GLUT-1 and HIF-1α was positively correlated with that of Ki-67(r=0.70,0.81 respectively,both P<0.01),and positive correlation was also found between the expression of GLUT-1 and HIF-1α(r=0.85.P<0.01).Conclusion Our data suggest that uprcgulation Of GLUT-1 and HIF-1α expression in psoriatic lesions might contribute to the proliferation of keratinocytes and psoriasis development.