Hebei Province General Hospital
Hebei Province General Hospital
Yan Y.,Hebei Province General Hospital |
Deng X.,Hebei Province General Hospital |
Ning X.,Hebei Province General Hospital |
Li F.,Hebei Province General Hospital |
Cao J.,Hebei Province General Hospital
Oncology Letters | Year: 2017
miR-21 plays an important role in immune responses and inflammatory diseases, but the mechanism of action of miR-21 in autoimmune lymphoid hyperplasia syndrome still remains unclear. The aim of the present study was to assess the mechanism of miR-21 in autoimmune disease, particularly, the autoimmune lymphoid hyperplasia syndrome. The pathology and immunity-related phenotypes of miR-21 transgenic mice, and the lymphocyte subsets were analyzed. The related T cell subsets and germinal center B (GCB) cells generated at the germinal center were detected with flow cytometry. The target genes of miR-21 were evaluated with the luciferase reporter gene method. The homeostatic proliferation of the lymphocytes was detected with the EdU incorporation assay. Inflammatory infiltration occurred to the lung and liver of the transgenic mice at 8 weeks. The frequency of the regulatory helper T cells decreased slightly. Significantly increased double negative T cells were observed in the spleen of the transgenic mice (P<0.05). The immunoglobulins IgG1, IgG2a, IgG2b, and IgG3 in the serum of the transgenic mice aged 8 weeks were significantly higher than those in the wild-type mice aged 8 weeks (P<0.05). The percentages of the GCB cells in the peripheral lymphoid organs such as lymph nodes, mesenteric lymph nodes, PP and spleen in the transgenic mice aged 8-52 weeks increased significantly (P<0.05). The percentage (26.32%) of the newly-formed GCB cells derived from transgenic mice was significantly higher than that (3.87%) of the GCB cells derived from the wild-type mice. miR-21 played a role of negative feedback regulation by inhibiting the NF-κB signal pathway. The highly-expressed miR-21 B cells promoted homeostatic proliferation of the T cells. miR-21 can promote homeostatic proliferation of lymphocytes by inhibiting the NF-κB signal pathway. © 2017, Spandidos Publications. All rights reserved.
Meng A.,Hebei Medical University |
Wang B.,Hebei Medical University |
Zhang X.,Hebei Province General Hospital |
Qi N.,Hebei Medical University |
And 2 more authors.
Inflammation | Year: 2015
P38 inhibitors are potent anti-inflammatory agents with distinctive mechanism of action from corticosteroid; the potential combined use of both anti-inflammatory agents could be an effective treatment for inflammatory lung disease; however, the impact of such combination on the homeostasis of immune response was poorly understood. To investigate the combined effect of dexamethasone (DEX) and/or SB203580 on tumor necrosis factor (TNF)-α (pro-inflammatory) and interleukin (IL)-10 (anti-inflammatory) secretion in mouse alveolar macrophage cell line. Secreted TNF-α and IL-10 were measured by ELISA. Phosphorylated STAT3 were investigated using Western blotting and immunocytochemistry. Pre-treatment of DEX or SB203580 inhibited lipopolysaccharide (LPS)-stimulated IL-10, TNF-α secretion, and STAT3 phosphorylation. Combined use of both agents showed stronger inhibitory effect. Combining DEX and SB203580 showed strong inhibition on the LPS-induced IL-10 secretion and STAT3 phosphorylation, which might reflect a very important drawback from the combined use of both anti-inflammatory agents. © 2014, Springer Science+Business Media New York.
Yang J.,Hebei Medical University |
Yang J.,Hebei Province General Hospital |
Kuang X.-R.,Hebei Medical University |
Kuang X.-R.,Cangzhou Central Hospital |
And 2 more authors.
Tumor Biology | Year: 2014
Thymoquinone (TQ) is the primary bioactive component of Nigella sativa Linn seed oil and used as anti-inflammatory, anti-oxidant, and anti-neoplastic agent. Previous studies have shown that TQ exhibits inhibitory effects on multiple cancers. However, the detailed antineoplastic effects and its molecular mechanisms of TQ on lung cancer are not entirely elucidated yet. In the present study, we aimed to investigate the effects of TQ on cell proliferation, migration, and invasion as well as its underlying anti-metastatic mechanisms in A549 cells. Lung cancer cell line A549 cells were treated with different concentration of TQ for different period of time, and the growth-inhibitory effects of TQ was measured by MTT and cell count assays; cell cycle was determined by flow cytometry; wound healing and transwell assays were used to assess the cell migration and invasion activities; Western blot and real-time quantitative RT-PCR were used to determine the expression of proliferation and invasion associated genes as well as MAPKs pathway molecules; gelatinase activity was estimated using gelatin zymography assay. The results show that TQ played a role in inhibiting the proliferation, migration, and invasion of A549 lung cancer cells, it also inhibited the expression level of PCNA, cyclin D1, MMP2, and MMP9 mRNA and protein in a dose- and time-dependent manner especially at 10, 20, 40 μmol/L concentrations. The cell cycle inhibitor P16 expression and the gelatinase activities of MMP2 and MMP9 were also inhibited by TQ dramatically. TQ reduced phosphorylation of ERK1/2; however, the proliferation and invasion inhibitory effects of TQ on A549 cells were neutralized by ERK1/2 inhibitor PD98059. In conclusion, our study confirmed that TQ could inhibit A549 cell proliferation, migration, and invasion through ERK1/2 pathway, as proposed the therapeutic potential of TQ as an anti-metastatic agent in human lung cancer treatment. © 2014, International Society of Oncology and BioMarkers (ISOBM).
Meng A.,Hebei Medical University |
Zhang X.,Hebei Medical University |
Zhang X.,Hebei Province General Hospital |
Shi Y.,Hebei Medical University
Experimental and Therapeutic Medicine | Year: 2014
Excessive production of inflammatory mediators is an important feature of inflammatory lung disease. In macrophages, mitogen-activated protein kinase (MAPK) and signal transducer and activator of transcription-3 (STAT3) are crucial mediators for the production of proinflammatory cytokines. In the present study, the role of MAPK and STAT3 on tumor necrosis factor (TNF)-α and interleukin (IL)-10 production was investigated in mouse alveolar macrophages. The levels of TNF-α and IL-10 in lipopolysaccharide (LPS; 100 ng/ml)-stimulated MH-S cell lines were measured by an enzyme-linked immunosorbent assay, with or without p38 inhibitor (SB203580; 5, 10 or 15 μΜ) intervention. Phosphorylated STAT3 (p-STAT3) expression was examined by western blot analysis and immunocytochemistry following LPS stimulation for 15 or 30 min. Antibodies against STAT3 were used to verify comparable sample loading. Cells stimulated with LPS showed significantly increased levels of p-STAT3 protein (P<0.05) when compared with the baseline levels. TNF-α and IL-10 protein levels also increased following LPS stimulation (P<0.05). By contrast, treatment with the p38 inhibitor, SB203580, decreased the levels of p-STAT3, TNF-α and IL-10 (P<0.05) following LPS stimulation. SB203580 was shown to inhibit LPS-stimulated TNF-α expression (P<0.05) in a concentration-dependent manner, reaching significance at a concentration of 10 μM. However, the inhibition of IL-10 expression was not concentration-dependent. Therefore, LPS-stimulated overproduction of TNF-α and IL-10 is mediated at least partially by the MAPK pathway. Inhibition of p38 prevented LPS-induced STAT3 phosphorylation, indicating an interaction between the STAT3 and MAPK signaling pathways. © 2014, Spandidos Publications. All right reserved.
Wu G.-L.,Bethune International Peace Hospital of Peoples Liberation Army PLA |
Yuan J.-L.,PLA Fourth Military Medical University |
Huang X.-D.,Bethune International Peace Hospital of Peoples Liberation Army PLA |
Rong J.-F.,Hebei Province General Hospital |
And 3 more authors.
Tumor Biology | Year: 2013
Increased expression of CARMA3 has been reported to be involved in tumorigenesis and tumor progression of several cancer types. The aim of our study is to investigate the prognostic role of CARMA3 expression in patients with renal cell carcinoma (RCC). Real-time quantitative PCR was performed to detect CARMA3 mRNA expression level in 31 paired samples of RCC and adjacent noncancerous renal tissues. Subsequently, extensive immunohistochemistry was performed to detect CARMA3 protein expression in 114 RCC cases. Clinicopathological data for these patients were evaluated. The prognostic significance was assessed using the Kaplan-Meier survival estimates and log-rank tests. CARMA3 mRNA expression was significantly higher in RCC tissues compared with adjacent noncancerous renal tissues (3.525 ± 1.233 vs. 1.512 ± 0.784, P < 0.001). In addition, high CARMA3 expression in RCC tissues was significantly associated with tumor size (P = 0.026), histological differentiation (P = 0.039), tumor stage (P = 0.006), and the presence of metastasis (P < 0.001). Moreover, Kaplan-Meier analysis showed that patients with high CARMA3 expression also had a significantly poorer prognosis than those with low CARMA3 expression (log-rank test, P < 0.001). Furthermore, multivariate analysis illustrated that CARMA3 overexpression might be an independent prognostic indicator for the survival of patients with RCC. In conclusion, this work shows that CARMA3 may serve as a novel and prognostic marker for RCC and play a role during the development and progression of the disease. © 2013 International Society of Oncology and BioMarkers (ISOBM).
PubMed | Hebei Province General Hospital and Hebei Medical University
Type: Journal Article | Journal: Oncology letters | Year: 2014
The present study sought to characterize the role of macrophage inflammatory protein-3 (MIP-3) in non-small cell lung cancer (NSCLC) patients with early recurrence or metastasis after primary pulmonary resection. Follow-up examinations were conducted for 203 NSCLC patients with primary pulmonary resection for two years post-operatively, and data was also collected for 20 healthy subjects. Serum MIP-3 levels were determined prior to surgery and at post-operative days (PODs) 30, 90 and 180, and the relevant clinical and operative variables were collected. Serum MIP-3 was measured using a commercially available enzyme-linked immunosorbent assay. There were no significant differences in age, gender and histological type among all groups (P>0.05). Serum MIP-3 levels on POD 180 were significantly higher in the recurrence group than in the non-recurrence group and healthy subjects (P=0.001). There was no significant difference in the serum MIP-3 level at PODs 90 and 180 in the patients with or without adjuvant chemotherapy (P>0.05). The recurrence rate in the high serum MIP-3 level group was 41.67%, much higher than the 23.53% observed in the low level group (P=0.006). The patients with high serum levels of MIP-3 had a significantly shorter overall recurrence-free time compared with those with low levels (P=0.004). Multivariate Coxs regression analyses showed that only serum MIP-3 level was significant, with a hazard ratio of 1.061, a 95% confidence interval of 1.044-1.078 and a P-value of 0.001. The serum MIP-3 level in the patients with liver and bone metastases were remarkably higher than those with recurrence at other sites. The high post-operative serum MIP-3 levels were associated with an increased risk of post-operative early recurrence or metastasis in the lung cancer patients, specifically in those with bone or liver metastases.
Zhao X.-B.,Hebei Province General Hospital |
Li K.-J.,Hebei Province General Hospital |
Zhao Z.-H.,Hebei Province General Hospital |
Jia Z.-Y.,Hebei Province General Hospital
International Eye Science | Year: 2015
AIM: To compare the clinical outcomes of wavefront-guided and wavefront-optimized laser in situ keratomileusis (LASIK) to correct myopia and myopic astigmatism in patients with a preoperative total ocular higher-order aberrations (HOAs) lower than 0.3μm. METHODS: In this prospective study, 60 eyes of 30 patients with myopia with or without astigmatism in our department were included. One eye of each patient was randomized to undergo wavefront-guided LASIK, and the fellow eye received wavefront-optimized LASIK. Postoperative outcome measures at 6mo included visual acuity, refraction, ocular HOAs, and contrast sensitivity under mesopic condition. Paired t-test and χ2 test were used to analyze the data. RESULTS: Six months postoperatively, 93% of eyes in the wavefront-guided group and 90% in the wavefront-optimized group had uncorrected visual acuity of 5.0 or better; 87% and 83%, respectively, had a postoperative spherical equivalent refraction of ±0.50D diopter. The differences were not statistically significant (P>0.05). No eye in either group lost 2 lines or more BCVA. Total HOAs, spherical aberration and coma increased in both groups postoperatively (P<0.01), with no statistical differences in HOA changes between groups (P>0.05). Contrast sensitivity under mesopic conditions in both groups recovered to preoperative levels at all spatial frequencies at 6mo postoperative (P>0.05). CONCLUSION: For eyes with preoperative HOAs lower than 0.3μm, wavefront-guided LASIK and wavefront-optimized LASIK can provide similar results in terms of visual acuity, refraction, HOAs, and contrast sensitivity. Copyright 2015 by the IJO Press.
Yan L.,Hebei Province General Hospital |
Lu Y.-K.,Hebei Province General Hospital
Chinese Journal of New Drugs | Year: 2010
Objective: To observe the efficacy and safety of domestic tiotropium bromide inhalation in patients with stable mild and moderate chronic obstructive pulmonary disease(COPD). Methods: A randomized and double blind placebo-controlled clinical trail was conducted in patients with COPD. A total of 60 patients were assigned to receive tiotropium bromide by inhalation or conventional therapy (control). The following indices between two groups were compared before and after treatment: lung function, 6 minute walk distance, scores of clinical symptoms and times of exacerbation. Meanwhile, we observed the adverse reactions in two groups. Results: In tiotropium group, the FEV1, FVC and IC significantly increased, 6 minute walk distance and clinical symptoms were improved better, and the times of exacerbation were reduced as compared with the control group(P < 0.05). Significant adverse reactions were not found during the treatment. Conclusion: Domestic tiotropium bromide inhalation is an effective and safe bronchodilator in treating mild to moderate COPD.
PubMed | Hebei Province General Hospital
Type: Clinical Trial | Journal: European journal of histochemistry : EJH | Year: 2014
The pseudocapsule surrounding fibroids consists of compressed myometrium containing nerves and blood vessels that continue into adjacent myometrium. Oxytocin (OXT) is thought to affect wound healing after myomectomy. We determined the presence of OXT and protein gene product 9.5 (PGP9.5) immunoreactive nerve fibers in pseudocapsule compared to adjacent myometrium. Samples (N=106) of pseudocapsule and adjacent myometrium were collected from 57 women with uterine fibroids undergoing myomectomy, and stained with anti-OXT and PGP 9.5 antibodies to demonstrate the presence of nerve fibers. Nerve fibers in the pseudocapsule stained positively with OXT (89/106, 84.0%) and PGP 9.5 (94/106, 88.7%). The densities of nerve fibers staining with PGP 9.5 and OXT in the pseudocapsule were highest in the isthmus (23.6822.45/mm2 and 43.3540.74/mm2, respectively). There were no significant differences in the density of nerve fibers, stained with either OXT or PGP 9.5, between the pseudocapsule, and adjacent normal myometrium regardless of the fibroid location in the uterus (P>0.05). These results suggest that the pseudocapsule should avoid to be damaged during the myomectomy procedure.
PubMed | Hebei Province General Hospital
Type: Journal Article | Journal: Experimental and therapeutic medicine | Year: 2014
The aim of the present study was to explore the use of high frequency color Doppler ultrasound to measure synovial thickness and blood flow to assess the therapeutic value of the recombinant human tumor necrosis factor (TNF) II receptor antibody fusion protein in rheumatoid arthritis (RA) treatment. A total of 36 clinically-diagnosed patients with RA were treated with methotrexate tablets or the recombinant TNF-receptor antibody fusion protein for 24 weeks. Joint synovial thickness and synovial blood flow integrity were monitored by high frequency color Doppler in the second metacarpophalangeal joint in one hand. The correlation of the erythrocyte sedimentation rate, C-reactive protein (CRP) and 28-joint disease activity score (DAS28) with the ultrasound parameters were analyzed. Metacarpophalangeal second joint 2 (MCP2) synovial thickness, wrist joint synovial thickness and MCP2 synovial blood flow, prior and subsequent to the treatment, have a high correlation with DAS28 (P<0.05), and the MCP2 synovial blood flow integral has a strong correlation with CRP. Evaluating the wrist joint synovial thickness and synovial integrity of the second metacarpophalangeal joint using high frequency ultrasound detection can effectively evaluate the disease status in patients with RA. This procedure is potentially valuable as a means of evaluating the curative effects of RA treatments.