Ikaros family zinc finger 1 mutation is a poor prognostic factor for adult Philadelphia chromosome positive acute lymphoblastic leukemia / 中华内科杂志

Objective To analyze the prognostic impact of Ikaros family zinc finger 1(IKZF1)mutation on adult Philadelphia chromosome (Ph1) positive acute lymphoblastic leukemia (ALL) patients.Methods IKZF1 mutation was detected in 63 adult Phi positive ALL patients at diagnosis using capillary electrophoresis.Recruited patients were treated in our center and other three hospitals in Ningbo from January 2014 to January 2017.Clinical data were collected and retrospectively analyzed.Results Thirty-nine (61.9％) patients were positive IKZF1 mutation in this cohort.The white blood cell (WBC) count in IKZF1 mutation group was significantly higher than that of mutation negative group [(64.6±11.3)× 109/L vs.(33.7±5.6)×109/L,P＜0.05].Patients with WBC count over 30×109/L accounted for 56.4％ in IKZF1 mutation group.Complete remission (CR) rate in the IKZF1 mutation group was also lower than that of negative group after induction chemotherapy (64.1％ vs.75.0％,P＞0.05).IKZF1 was a negative prognostic factor but not independent factor for survival by univariate and multivariate analyses.Patients were divided into chemotherapy and allogeneic transplantation groups.The 3-year overall survival (OS) rate and 3-year leukemia-free survival (LFS) rate in IKZF1 mutation group were significantly lower than those of negative group in both transplantation group (42.3％ vs.59.3％;31.2％ vs.50.0％;respectively,both P＜0.05) and chemotherapy group (24.8％ vs.40.0％;19.0％ vs.34.3％;respectively,both P＜0.05).Conclusion IKZF1 mutation is a poor prognostic factor for adult Ph1 positive ALL patients.

Influence of abnormal IL-2 and IL-10 secretion on Th1/Th2 in patients with gestational hypertension / 心血管康复医学杂志

Objective:To explore correlation among levels of interleukin(IL)-2,IL-10 and Th1/Th2 ratio,mean arterial pressure(MAP)in patients with gestational hypertension(GH).Methods:A total of 50 normal pregnant women(normal control group)and 47 GH patients(GH group)hospitalized in our hospital were selected.Levels of IL-2 and IL-10 were measured by radioimmunoassay,Th1 and Th2 were measured by flow cytometer,then Th1/Th2 was calculated,and above indexes were compared and analyzed between two groups.Spearman correlation analysis was used to analyze the correlation among IL-2,IL-10 levels and Th1/Th2,MAP.Results:Compared with normal control group,there were significant rise in IL-2 level[(0.79 ± 0.14)pg/ml vs.(1.64 ± 0.32)pg/ml],Th1[(8.95 ± 0.78)% vs.(16.02 ± 1.43)%],Th1/Th2 ratio[(8.46 ± 0.49)vs.(17.95 ± 1.24)]and MAP[(80.91 ± 10.23)mmHg vs.(134.7 ± 26.4)mmHg],and significant reductions in levels of IL-10[(129.46 ± 28.61)pg/ml vs.(64.25 ± 9.86)pg/ml]and Th2[(1.09 ± 0.12)% vs.(0.87 ± 0.05)%]in GH group,P=0.001 all.IL-2 level was significant positively correlated with Th 1,Th1/Th2 and MAP(r=0.493~0.618,P<0.05 or <0.01),and significant inversely correlated with Th 2(r= -0.359,P=0.024);IL-10 level was significant inversely correlated with Th 1,Th1/Th2 and MAP(r= -0.694~ -0.518,P<0.05 or <0.01),and significant positively correlated with Th 2(r=0.458,P=0.014).Conclusion:Immune factors IL-2 and IL-10 secretion ab-normalities in GH patients can lead to Th1/Th2 imbalance,and they are closely correlated to hypertension,which affect progress and outcome of hypertension.

Gene expression profiling of peripheral blood mononuclear cells in patients with secondary syphilis / 中华男科学杂志

<p><b>Objective</b>To analyze the gene expression profiling characteristics of peripheral blood mononuclear cells (PBMCs) from patients with secondary syphilis, and gain an insight into the host molecular immune mechanisms involved in Treponema pallidum infection.</p><p><b>METHODS</b>Using genome-based high-throughput Illumina sequencing technology, we comprehensively determined the transcriptional difference in PBMCs from 4 secondary syphilis patients and 4 healthy controls, followed by real time PCR to validate the results of Illumina sequencing.</p><p><b>RESULTS</b>Totally, 78 differentially expressed genes were found in the PBMCs of the secondary syphilis patients, among which 16 were associated with the immune system. Significant upregulation was observed in the expressions of pro-inflammatory cytokines and related receptors, such as TNF receptor super-family member 17 (TNFRSF17), IL-17C, IL-21, IL-31 receptor A (IL-31RA), chemokine C-X-C motif ligand 10 (CXCL10), and chemokine (C-C motif) ligand 1 (CCL1), as well as the transcripts for the CD4+ T lymphocytes activation markers CD38, Fc-mediated phagocytosis receptors (FcγR1A, FcγR3B), and complement (C2, SERPING1).</p><p><b>CONCLUSIONS</b>Systemic innate and adaptive immune effecter molecules are involved in the host clearance mechanism of secondary syphilis.</p>

Molecular mechanism of icariin on rat asthmatic model / 中华医学杂志(英文版)

<p><b>BACKGROUND</b>Effects of icariin on airway inflammation in asthmatic rats and the intervention of LPS induced inflammation are interfered with the machanism of icariin. Our study aimed to observe the effect of icariin on ovalbumin-induced imbalance of Th1/Th2 cytokine expression and its mechanism.</p><p><b>METHODS</b>Sixty male SD rats were randomly divided into control group (PBS), asthma group (ovalbumin (OVA)-induced), dexamethasone group, and OVA+icariin low, medium and high dose groups (5, 10, 20 mg/kg, respectively). Each group had ten rats. The model of OVA sensitization was a rat asthma model. Enzyme-linked immunosorbent assay (ELISA) method was used to observe the effects of icariin on interleukin-4 (IL-4) and inerferon γ (IFN-γ) in rats' lung tissue. Immunohistochemical staining was applied to detect the intervention effects of icariin on T cells (T-bet) and gatabinding protein 3 (GATA-3) in rat pulmonary tissue. Realtime RT-PCR was used to observe the intervention effects of icariin on T-bet and GATA-3 mRNA expression in rat pulmonary tissue and spleen lymphocytes. Western blotting was used to observe the icariin intervention effects on T-bet, GATA-3 and nuclear factor-Kappa B (NF-κB) p65 protein expressions in rat pulmonary tissue.</p><p><b>RESULTS</b>The ELISA results from pulmonary tissue showed that IL-4 expression was significantly reduced (P < 0.05), while the IFN-γ expression increased but not significantly when we compared OVA+icariin medium and high dose groups with the asthma group. Immunohistochemical staining of pulmonary tissue showed that the GATA-3 decreased significantly while the T-bet staining did not change in the OVA+icariin high dose group. In pulmonary tissue and spleen lymphocytes T-bet and GATA-3 mRNA expressions were significantly reduced (P < 0.05) in icariin treatment groups compared with the asthma model group. GATA-3 and T-bet mRNA in rat spleen lymphocytes in the asthma group were higher than in the control group. GATA-3 mRNA expression in pulmonary tissue significantly decreased (P < 0.05) while T-bet mRNA expression decreased but not significantly in the icariin treatment group compared with the asthma group. T-bet and GATA-3 protein expressions in pulmonary tissue increased significantly compared with the asthma group, which meant that icariin could inhibit the increase of GATA-3 protein, but not of T-bet. The bronchus, blood vessels and periphery pulmonary tissue had infiltration of inflammatory cells in the OVA+icariin high dose group while NF-κB p65 cells were reduced, and expression of NF-κB p65 in this group was less than in the asthma group. The expression of total p65 protein decreased with icariin treatment while the expression of cytoplasmic p65 protein increased.</p><p><b>CONCLUSIONS</b>Icariin could regulate the imbalance of Th1/Th2 cytokines in asthmatic rat pulmonary tissue. Icariin could regulate the imbalance of Th1/Th2 associated transcription factors T-bet and GATA-3 in asthmatic rat pulmonary tissue and spleen lymphocytes. Icariin could inhibit the activation of NF-κB p65 protein in asthmatic rat pulmonary tissue.</p>

Inflammatory airway features and hypothalamic-pituitary-adrenal axis function in asthmatic rats combined with chronic obstructive pulmonary disease / 中华医学杂志(英文版)

<p><b>BACKGROUND</b>Bronchial asthma (BA) and chronic obstructive pulmonary disease (COPD) are both inflammatory airway diseases with different characteristics. However, there are many patients who suffer from both BA and COPD. This study was to evaluate changes of inflammatory airway features and hypothalamic-pituitary-adrenal (HPA) axis function in asthmatic rats combined with COPD.</p><p><b>METHODS</b>Brown Norway (BN) rats were used to model the inflammatory airway diseases of BA, COPD and COPD + BA. These three models were compared and evaluated with respect to clinical symptoms, pulmonary histopathology, airway hyperresponsiveness (AHR), inflammatory cytokines and HPA axis function.</p><p><b>RESULTS</b>The inflammatory airway features and HPA axis function in rats in the COPD + BA model group were greatly influenced. Rats in this model group showed features of the inflammatory diseases BA and COPD. The expression of inflammatory cytokines in this model group might be up or downregulated when both disease processes are present. The levels of corticotrophin releasing hormone mRNA and corticosterone in this model group were both significantly decreased than those in the control group (P < 0.05).</p><p><b>CONCLUSIONS</b>BN rat can be used as an animal model of COPD + BA. By evaluating this animal model we found that the features of inflammation in rats in this model group seem to be exaggerated. The HPA axis functions in rats in this model group have been disturbed or impaired, which is prominent at the hypothalamic level.</p>

Accuracy of 18F-FDG PET/CT for lymph node staging in non-small-cell lung cancers / 中华医学杂志(英文版)

<p><b>BACKGROUND</b>This retrospective study evaluated the diagnostic accuracy of 2-(F18)-fluoro-2-deoxy-D-glucose-positron emission tomography ((18)F-FDG-PET)/computed tomography (PET/CT) in the preoperative diagnosis of metastatic mediastinal and hilar lymph node in patients with non-small-cell lung cancer (NSCLC).</p><p><b>METHODS</b>A total of 39 patients received preoperative (18)F-FDG PET/CT and the postoperative biopsy. We compared preoperative PET/CT scan results with corresponding intraoperative histopathalogic findings in 39 NSCLC patients. The sensitivity, specificity, accuracy, positive and negative predictive value of (18)F-FDG PET/CT were assessed.</p><p><b>RESULTS</b>Histopathologic examination confirmed metastasis in 57 out of the 208 excised lymph nodes; 23 of the 57 nodes were mediastinal and hilar lymph nodes. The sensitivity, specificity, accuracy, positive predictive value and negative predictive value of PET/CT in the preoperative diagnosis of mediastinal lymph node metastasis in NSCLC patients were 65%, 96.8%, 92%, 78.5% and 90%, respectively.</p><p><b>CONCLUSIONS</b>PET/CT scan showed good accuracy in the preoperative diagnosis of mediastinal and hilar lymph node metastasis in the patients with NSCLC. We recommend that PET/CT scanning be used as a first-line evaluation tool for tumor diagnosis, therapy evaluation and follow-up.</p>

Effect of IL-10 on LOX-1 expression of peripheral blood monocytes in patients with acute coronary syndrome / 中南大学学报(医学版)

OBJECTIVE@#To determine the expression of lectin-like oxidized low-density lipoprotein receptor-1 (LOX-1) of peripheral blood monocytes in patients with acute coronary syndromes (ACS),and to further explore the effect of anti-inflammatory factor interleukin-10 (IL-10) on the expression of LOX-1.@*METHODS@#Twenty-eight healthy controls and 28 ACS patients were enrolled in the study. The levels of IL-10 and tumor necrosis factor (TNF-alpha) were determined by enzyme-linked immunosorbnent assay(ELISA). The monocytes of peripheral blood in patients and controls were isolated and incubated with exogenous IL-10 (20 microg/L). The expression of LOX-1 protein and mRNA in the monocytes was examined by Western blot and reverse transcriptase PCR (RT-PCR).@*RESULTS@#Compared with the healthy controls, the levels of serum IL-10 and TNF-alpha were significantly elevated in ACS patients (P<0.01). The expression of LOX-1 protein and mRNA was markedly upregulated in the isolated monocytes from ACS patients, which could be downregulated by IL-10 (20 microg/L, 3 h) (P<0.01).@*CONCLUSION@#The effect of anti-inflammatory factor IL-10 on the atherosclerosis may be a new mechanism resulting in plaque stabilization via the decreased LOX-1 expression of peripheral monocytes in ACS patients.

Avastin combined with cisplan inhibits malignant ascites production in nude mice bearing transplanted ovary carcinoma with high VEGF expression / 南方医科大学学报

<p><b>OBJECTIVE</b>To establish a nude mouse model of malignant ascites with human ovarian carcinoma cell line OVCAR3 which highly expresses VEGF and evaluate the therapeutic of Avastin combined with cisplan.</p><p><b>METHODS</b>Forty-eight nude mice with malignant ascites resulting from intraperitoneal transplantation of human ovarian carcinoma cell line OVCAR3 were treated with intraperitoneal injection of Avastin, cisplan, their combination, and PBS, respectively, to observe the effect on ascites development, VEGF content in the ascites, peritoneal permeability, development of new vessels and number of tumor cells in the ascites.</p><p><b>RESULTS</b>Avastin obviously inhibited ascites accumulation and peritoneal capillary permeability, reduced VEGF protein level and microvascular density in the tumor tissues and the number of red cells and tumor cells in the malignant ascites, and prolonged the survival of the mice. The combination of Avastin and cisplan further enhanced the therapeutic efficacy of Avastin.</p><p><b>CONCLUSION</b>The bio-chemotherapeutic strategy with Avastin combined with cisplan can be a promising method for treatment of malignant ascites.</p>

Proatherogenic effects of immune complexes of human oxLDL in vitro / 中南大学学报(医学版)

OBJECTIVE@#To observe the effects of immune complexes (IC) prepared from human oxidized density lipoprotein (oxLDL) antibodies and human oxLDL on the foam cell forming and the macrophage activation, and to further uncover the possible mechanisms of immune complexes contributing to the atherosclerosis occurrence.@*METHODS@#The immune complexes of human oxLDL and purified human oxLDL antibodies were added to culture U937 cells by protocols: polyethylene glycol-precipitated insoluble IC (PEG-IC) and IC immobilized by absorption to red blood cells (RBC-IC). With oxLDL as controls and heat-aggregated gamma globulin as an inhibitor of Fc gamma receptor, we measured the cholesterol ester, total cholesterol of the cellular extracts, and quantified the secreted MMP-1 of supernatants from U937 cells.@*RESULTS@#A significant increase of MMP-1 release [(0.769 +/- 0.030) ng/ml vs (0.513 +/- 0.034) ng/ml, P < 0.01] and a higher level of cholesterol ester accumulation [(20.271 +/- 1.668) microg/mg protein vs (17. 226 +/- 1.298 ) microg/mg protein, P < 0.05] in U937 cells incubated with RBC-IC were observed, compared with those incubated with RBC-oxLDL. However, the above quantative difference between the cholesterol ester accumulation induced by oxLDL and insoluble PEG-IC was even more striking, and cholesterol ester accumulation was dosage-dependent. Heat-aggregated gamma globulin (10 mg/ml) as an inhibitor of Fc gamma receptors competitively inhibited cholesterol ester accumulation and decreased PEG-IC stimulating MMP-1 secretion to 71%.@*CONCLUSION@#Immune complexe of ox-LDL can transform macrophages into foam cells and activted macrophages. The immunological function of oxLDL is involved in the process of atherosclerosis occurrence.