1.Transcription activator protein 1 (AP-1)-related study in basophils from patients with chronic idiopathic urticaria
Yiping MA ; Xu YAO ; Lin LIN ; Wuqing ZHOU ; Pangen CUI
Chinese Journal of Dermatology 2010;43(11):762-765
Objective To investigate the role of AP-1 in the pathogenesis of chronic idiopathic urticaria (CIU). Methods By using immunomagnetic separation technology, peripheral blood basophils were isolated from 10 CIU patients and 10 normal human controls followed by the extraction of nuclear protein from the basophils. TransAMTM AP-1 family kit was used to detect the DNA binding activity changes of AP-1 family transcription factors in basophils, and Western blotting to detect the expression of P-c-jun protein. Results There were some differences in the DNA binding activity of AP-1 family transcription factors in basophils between CIU patients and normal controls. The DNA binding activity of Phospho-c-jun, c-fos, Fos-B, Jun-B and Jun-D factors was increased in CIU patients compared with the controls, and the increase in that of P-c-jun and Jun-D was statistically significant (both P < 0.05). There was an insignificant decrease in the DNA binding activity of Fra-1 factor in the CIU patients compared with the controls (P > 0.05). The P-c-jun (Ser73) protein expression was higher in CIU patients than that in the controls (0.527 ± 0.312 vs. 0.435 ± 0.042, P < 0.05),whereas there was no significant difference in the P-c-jun (Ser63) protein expression level. Conclusion Some changes in DNA binding activity of AP-1 and overexpression of P-c-jun (Ser73) protein in basophils may be involved in the pathogenesis of CIU.
2.Retrospective study on effect of antinuclear antibody, extractable nuclear antigen and antineutrophil cytoplasmic antibody on clinical manifestation and cerebrospinal fluid characteristics of neuromyelitis optica
Caiyan LIU ; Yan XU ; Liying CUI ; Lin CHEN
Chinese Journal of Neurology 2010;43(11):784-787
Objective To explore the effect of antinuclear antibody ( ANA+dsDNA),extractable nuclear antigen (ENA) and antineutrophil cytoplasmic antibody (ANCA) on the clinical manifestation and cerebrospinal fluid characteristics of neuromyelitis optica (NMO).Methods All 41 patients with NMO in PUMC hospital from 1985 to 2009 were retrospectively reviewed.All patients underwent examination of serum ANA+dsDNA,ENA and ANCA.Fourteen positive-autoantibody patients were compared with 27negative-autoantibody patients in gender,onset age,duration,relapse ratio,first demyelination event,the extent of optic neuritis and myelitis,EDSS,CSF protein,WBC,Oligoclonal band, 24 hours IgG index and myelin basic protein.Results The 14 NMO patients (34.1%) had positive non-organ-specific antibodies.NMO patients who had negative autoantibodies were compared with NMO patients with positive autoantibodies with significantly higher EDSS (the EDSS score were 4.5 and 2.5 respectively,U=92.5,P=0.008),more complete damage of spinal cord (3/14 vs 0/27, x2=6.736, P=0.0095) and tended to have higher visual Function Scale in remitting phase.There was no significant difference on the gender,onset age,duration,relapse ratio,first demyelination event.The positive-autoantibody patients had higher CSF WBC (2.0 vs 0,U=68.0,P=0.007) and tended to have lower 24 hours IgG index (-8.663 vs 0.163,U=30.0,P=0.053).There was no significant difference in CSF protein,MBP and OB.Conclusion NMO patients with positive autoantibodies have more severe intrathecal autoimmune inflammatory and disability,so they might need more intensive treatment.
4.Expression and clinical significance of FGF-19 in hepatocellular carcinoma
Lu SHI ; Shichang CUI ; Lin GONG ; Weisheng YUAN ; Luo XU
Military Medical Sciences 2014;(11):893-896
Objectives To analyze the expression of fibroblast growth factor-19(FGF-19) in hepatocellular carcinoma ( HCC) and adjacent tissues , and to investigate its clinical significance .Methods A total of 209 HCC patients who had undergone radical resection operations at Hospital 401 between January 2003 and December 2009 were chosen as samples . Immunohistochemistry method was employed to examine the expression level of FGF-19 in HCC and adjacent tissues .The relationship between FGF-19 protein expressions and clinicopathological features was analyzed by the chi -square test or Fisher exact probability .A survival curve was drawn using the Kaplan-Meier method and the Cox model was used to analyze factors that influenced survival .Results The rate of high expression of FGF-19 was 66.1% (138/209) in HCC, which was significantly higher than 46.9%(98/209) in adjacent tissues (P<0.05).The high expression of FGF-19 was related to the tumor capsule and tumor boundary (P<0.05).The overall survival in high expression of FGF-19 group was signifi-cantly lower than that in low expression group (P<0.05).Conclusion FGF-19 plays an important role in the carcinogen-esis and development of HCC , and a high expression of FGF-19 might be closely related to survival time of postoperative patients.FGF-19 might be a potential prognosis prediction factor for HCC .
6.The accuracy of functional magnetic resonance imaging and contrast-enhanced ultrasound on evaluation of breast cancer patients after neoadjuvant chemotherapy
Rongrong CUI ; Cheng XU ; Xiaoling LU ; Xiaoming ZUO ; Xiaoyan LIN
Chinese Journal of Postgraduates of Medicine 2014;37(8):24-27
Objective To investigate the accuracy of functional magnetic resonance imaging(fMRI) and contrast-enhanced ultrasound on evaluation of the breast cancer patients after neoadjuvant chemotherapy.Methods Forty-eight patients with breast cancer who were confirmed by biopsy,undergoing 4 cycles weekly dose-concentrated programs (wPC) neoadjuvant chemotherapy,evaluated the efficacy by fMRI and contrastenhanced ultrasound.Results In pathology,complete remission was 12 cases (25.0%,12/48),non remission was 13 cases (27.1%,13/48).In contrast-enhanced ultrasound,complete remission was 20 cases (41.7%,20/48),non remission was 10 cases (20.8%,10/48).In fMRI,complete remission was 17 cases (35.4%,17/48),non remission was 11 cases (22.9%,11/48).The P values more than 0.05 showed no statistically significant among three methods,the Kappa test showed that fMRI were superior to contrastenhanced ultrasound on evaluating the efficacy of neoadjuvant chemotherapy.Conclusions fMRI and contrast-enhanced ultrasound can be used in evaluating the efficacy of neoadjuvant chemotherapy,however,the data shows fMRI is superior to contrast-enhanced ultrasound.Contrast-enhanced ultrasound must be as the supplementary method.
7.Significance and expression of miR-7 in activated CD4+T cells
Hualin XU ; Juanjuan ZHAO ; Panpan CUI ; Mengmeng GUO ; Yijing TAO ; Chao CHEN ; Lin XU
Chinese Journal of Immunology 2016;32(10):1419-1423
Objective:To investigate the change of expression of miR-7 in activated CD4+ T cells in vitro, and preliminary explore its possible significance. Methods: CD4+CD62L+T cells was purified from splenocytes of FVB mice by magnetic cell sorting system (MACS). After stimulation with anti-CD3/CD28 antibody,the relative expression of miR-7 was examined by Real-time PCR, and the expression level of CD69 molecular was analyzed by FACS. Furthermore,the relative expression of miR-7 in CD4+T cells was detected at different time points during stimulation. With the treatment of ERK inhibitor PD98059,change of miR-7 expression was de-termined by Real-time PCR. Meanwhile, the proliferation of CD4+T cells was examined by CCK-8 assay and the expression level of CD69 and CD62L molecular were analyzed by FACS. Finally,the expression of cytokines IL-6,IL-10,and IFN-γ were determined by Real-time PCR. Results:Compared with control group,the relative expression of miR-7 was increased significantly after stimulation with anti-CD3/CD28 antibody,as well as expression level of CD69 molecular was augmented(P<0. 05). In contrasted with 0 h and 24 h,the expression of miR-7 was significantly increased after 48 h and 72 h during stimulation(P<0. 05). Furthermore,the relative expression of miR-7 was significantly declined in CD4+T cells in ERK inhibitor PD98059 treatment group. Finally, the expression level of CD69 molecular,as well as cytokines IL-6, IL-10 and IFN-γ, were also decreased significantly ( P<0. 05 ) . Conclusion: The relative expression of miR-7 was significantly increased in activated CD4+T cells,closely related to ERK pathway,which provided an important foundation for successive research work on exploring the functional role of miR-7 in the CD4+T cells.
8.Curative effect analysis of different surgical methods in the treatment of adrenal tumors in children
Yunjin WANG ; Liu CHEN ; Xu CUI ; Kainan LIN ; Xiaoqin XU ; Chaoming ZHOU
Chinese Journal of Applied Clinical Pediatrics 2021;36(2):118-121
Objective:To investigate the clinical efficacy of laparoscopic adrenalectomy and traditional open adrenalectomy for adrenal tumors in children.Methods:In Department of Pediatric Surgery, Fujian Provincial Maternity and Children′s Hospital from June 2008 to June 2016, the clinical data of 31 pediatric adrenal tumors was retrospectively analyzed.According to different surgical methods, they were divided into traditional open adrenalectomy group and laparoscopic adrenalectomy group.Bleeding loss, operation duration, incision length, abdominal drainage time, postoperative hospital stay, postoperative complications and recurrence were compared between the 2 groups.Results:There was no significant difference in age, sex, weight, and tumor size between the 2 groups (all P>0.05). The intraoperative bleeding loss was (18.06±4.86) mL for open adrenalectomy group and (15.20±4.48) mL for laparoscopic adrenalectomy group, and there existed no significant difference in the amount of bleeding between the 2 groups( T=-1.702, P>0.05). The operation duration was (137.44±19.32) min for open adrenalectomy group versus (134.80±6.21) min for laparoscopic adrenalectomy group, and there was no significant difference in operation duration between the 2 groups ( T=-0.504, P>0.05). The length of incision was (7.94±1.34) cm for open adrenalectomy group versus (3.44±0.21) cm for laparoscopic adrenalectomy group, the length of incision in laparoscopic group was shorter than that in open adrenalectomy group.There was significant difference in the length of incision between the 2 groups ( T=-12.843, P<0.001). The hospitalization time was (9.63±2.55) d for open adrenalectomy group versus (7.20±1.37) d for laparoscopic adrenalectomy group, the hospitalization time in laparoscopic group was shorter than those in open adrenalectomy group.The difference of operation time between the 2 groups was statistically significant ( T=-3.261, P=0.003). The average indwelling time of abdominal drainage tube was(5.94±1.53) d for open adrenalectomy group versus (4.80±1.74) d for laparoscopic adrenalectomy group, with no significant difference in postoperative abdominal drainage time between the 2 groups( T=-1.938, P>0.05). There was 1 case of retroperitoneal hematoma in laparoscopic adrenalectomy group and 2 cases of complications in open adrenalectomy group.There was no significant difference in the incidence of complications between the 2 groups ( P=1.000). There were 3 cases of distant metastasis and 1 case of recurrence in laparoscopic group, and 2 cases of distant metastasis and 1 case of recurrence in open adrenalectomy group.There was no significant difference in recurrence between the 2 groups ( P=1.000). Conclusions:Compared with open adrenalectomy surgery, laparoscopic adrenalectomy in children has various advantages, including beautiful incision, less trauma and fast recovery.However, it is necessary to select the appropriate cases.
9.In vitro effects of bone marrow-derived mesenchymal stem cells on the biological behavior of lipopolysaccharide-activated retinal microglia
Libin, HUANG ; Guoxing, XU ; Maosong, XIE ; Wen, LIN ; Yi, CUI ; Jianbing, LI
Chinese Journal of Experimental Ophthalmology 2016;34(9):773-779
Background Retinal microglia (RMG) plays an important role in the pathogenesis of retinal degenerative diseases,while chemokine CX3CL1 participates in the regulation of steady-state of microglia.It has been determined that bone marrow-derived mesenchymal stem cells (BMSCs) have a remarkable role to modulate the immune response and protect the central nervous system through the release of soluble factors in a paracrine fashion and further affect the functional behavior of cells.However,whether BMSCs are able to interact with RMG and activate related signaling pathway for the maintaining of homeostasis in the retina is still unclear.Objective The aim of this study was to investigate the interaction between BMSCs and lipopolysaccharide (LPS)-activated RMG in vitro,and dissect the effects of CX3CL1/CX3CR1 signaling pathway on the biological behavior of BMSCs and RMG.Methods RMG was isolated from SD rats,cultured with mixed culture of retinal glial cells and purified by shaking.The cells were identified by detecting the expression of CD111b,Iba1 and glutamamine synthetase (GS) with indirect immunofluorescence assay.LPS (1 mg/ml,2 μl) was added in the medium for 24 hours to stimulate RMG,and then the cells were divided into LPS control group,BMSCs group (cocultured with BMSCs for 24 hours) and CB-BMSCs group (cocultured with CX3CL1-blocking-BMSCs for 24 hours).The cells without LPS stimulation served as the blank control group.The functions of RMG,including the release content of tumor necrosis factor-α (TNF-α) and interleukin-1 β (IL-1β),the proliferation,phagocytosis,and migration of RMG were examined.Results RMG was successfully isolated and harvested from SD rats by using mixed culture of retinal glial cells and purified by shaking.CD11b and Iba1 showed the positive expression with the green fluorescence in the cells and GS was absent.The contents of TNF-αt in the cell supernatant were (2.55 ±0.97) ng/ml,(24.91 ±3.07) ng/ml,(20.38 ±2.97) ng/ml and (24.90 ± 1.88) ng/ml in the blank control group,LPS control group,BMSCs group and CB-BMSCs group,respectively,showing a significant difference among the groups (F=119.90,P<0.05).The contents of IL-1 β in the cell supernatant were (1.12±0.36) ng/ml,(10.40±2.76) ng/ml,(7.00± 1.75) ng/ml and (9.55 ± 1.11) ng/ml in the blank control group,LPS control group,BMSCs group and CB-BMSCs group,respectively,showing a significant difference among the groups(F =34.96,P<0.05).The secretory volume of TNF-α and IL-1 β were evidently lower in the BMSCs group than those in the LPS control group (both at P<0.05),and no significant differences were found in the secretory volume of TNF-α and IL-1β between CB-BMSCs group and LPS control group (both at P>0.05).The proliferative rate of RMG was lower in the BMSCs group than that in the LPS control group (P<0.05),while there was no statistical difference between BMSCs group and CB-BMSCs group (P>0.05).The mean fluorescence intensity (MFI) and the number of migrated RMG were considerably different among the four groups (F=70.55,15.49,both at P<0.05),and those in the BMSCs group were significantly increased in comparison with the LPS control group (both at P<0.05),while there was no significant difference between CB-BMSCs group and LPS control group (both at P>0.05).Conclusions BMSCs could suppress the proliferation of LPS-activated RMG.Moreover,BMSCs might inhibit proinflammatory cytokines releasing,enhance phagocytosis and migration capabilities of RMG via CX3CL1/CX3CR1 signaling pathway.
10.Practice and exploration of the cultivation system of hospital talents by levels and types
Yan HUANG ; Jing ZHANG ; Pengzhan ZHU ; Lin XU ; Tongtong LIU ; Nan CUI ; Jing LI ; Yan ZHANG
Chinese Journal of Hospital Administration 2021;37(1):6-9
Talents constitute core resource in the development of healthcare sector. Based on the situation of the talent team in the Affiliated Hospital of Qingdao University, the authors systematically constructed the hierarchical and classified system for talent cultivation, centering on three key areas of talent cultivation, evaluation and assessment. The authors analyzed the achievements since the implementation in 2016, namely the innovation of talent evaluation, the construction of discipline echelon, and the communication and inter-departmental cooperation. At the same time, the authors further put forward targeted suggestions to promote the development of talent teams in terms of transforming the human resource management model, increasing policy support and funding, implementing refined management, and improving talent evaluation indicators by the levels and types.