Serum level and clinical significance of macrophage inflammatory protein-1α and interferon ;gamma inducible protein-10 in acute myelogenous leukemia / 中国医师进修杂志

Objective To study the serum level of macrophage inflammatory protein-1α(MIP-1α) and interferon gamma inducible protein-10 (IP-10) in acute myelogenous leukemia (AML) and clarify their clinical significance. Methods Enzyme-linked immunosorbent assay was used to detect the level of MIP-1α and IP-10 in serum samples from 34 AML patients(observation group) and 20 volunteers (normal control group). Results The levels of MIP-1αand IP-10 in observation group before induction chemotherapy were significantly higher than those in normal control group (P<0.05). The levels of MIP-1αand IP-10 in observation group after induction chemotherapy were decreased, and significantly lower than those before induction chemotherapy (P<0.05). After treatment for one course, 21 patients reached complete remission (CR), and 13 patients did not reach CR. The levels of MIP-1αand IP-10 in CR group had no significant difference compared with those in normal control group (P<0.05), but the levels of MIP-1αand IP-10 in none CR group were significantly higher than those in normal control group and CR group (P<0.05). The drop percentage of MIP- 1αlevels in CR group and none CR group was (32.51 ± 10.34)% and (10.57 ± 10.39)%, and there was significant difference (P<0.05). The drop percentage of IP-10 levelsin CR group and none CR group was(45.94 ± 13.68)% and (31.17 ± 11.85)%, and there was significant difference (P<0.05). Liner correlation analysis revealed that the levels of MIP-1αand IP-10 had significantly positive correlation in AML patients (r=0.652, P<0.05). Conclusions Different expressions of serum MIP-1α and IP-10 are found before and after induction chemotherapy AML patients, and there is significant correlation. Combined detection of serum MIP-1αand IP-10 may be used as an index to monitor clinical stages and prognosis.

Study on Effect of Qing-Chang Wen-Zhong Decoction on Interferon Gamma Induced Protein 10 in Ulcerative Colitis Rats / 世界科学技术-中医药现代化

This paper was aimed to study the effect of Qing-Chang Wen-Zhong (QCWZ) decoction on interferon gamma induced protein 10 (IP10) in colon tissues of rats with ulcerative colitis (UC).The UC model was induced using 4.5％ DSS added to distilled water for 7 days.At the same time,low-,medium-and high-dose of QCWZ decoction and mesalazine was given by gavage route daily.Then,the rats were killed and the colon tissues were taken.Expression level of interleukin-1 alpha (IL-1α),IL-1β,IL-6,tumor necrosis factor alpha (TNF-α) and interferon gamma (INF-γ) in colon were detected by Elisa assay.The expression and distribution of IP10 protein were detected by immunohistochemistry (IHC).The results showed that compared with the normal group,inflammatory factors (IL-1α,IL-1β,IL-6,TNF-α,INF-γ) and IP10 expression level in DSS-induced UC rats were significantly increased.After 7 days of intervention,inflammatory factors (IL-1α,IL-1β,IL-6,TNF-α,INF-γ) and IP10 decreased significantly (p＜0.01,p＜0.05).It was concluded that QCWZ decoction may down-regulate the expression of IP 10 and inflammatory factors (IL-1α,IL-1β,IL-6,TNF-α,INF-γ),and then inhibit intestinal inflammation and repair intestinal mucosal damage,so as to achieve the purpose of UC treatment.

Expression and clinical significance of macrophage inflammatory protein -1α,interferon gamma inducible protein 10 and angiopoietin-1 in primary acute myelogenous leukemia / 中国基层医药

Objective To study the expression of macrophage inflammatory protein-1α(MIP-1α),inter-feron gamma inducible protein 10(IP -10)and angiopoietin -1 (Ang -1)in primary acute myelogenous leukemia (AML),and clarify their clinical significance.Methods ELISA was used to detect the expressions of MIP -1α,IP-10 and Ang -1 in serum samples from 54 AML patients(observation group),and twenty volunteers(normal control group).Results The expression levels of MIP -1α,IP -10 and Ang -1 in the observation group[(198.813 ± 53.923)pg/mL,(2.332 ±0.745)ng/mL,(1.593 ±0.447)ng/mL]were significantly higher than the normal control group[(153.309 ±44.475)pg/mL,(1.569 ±0.485)ng/mL,(0.838 ±0.333)ng/mL](t =3.369,5.133,6.856, all P 0.05).There were remarkable correlation between the serum expression levels of MIP -1αand Ang -1 (r =0.324,P <0.05).Conclusion There are differences of serum MIP -1α, IP -10 and Ang -1 in the different NCCN prognosis groups,which reflect they may have certain guiding significance in the choice of clinical treatment and the prognosis for newly diagnosed AML.

Clinical characteristics of interferon-gamma-inducible protein of 10 kDa in children with wheezing

PURPOSE: Recent studies have shown that interferon-gamma-inducible protein of 10 kDa (IP-10/CXCL10) levels is increased in acute bronchiolitis and asthma. The aim of this study was to examine the levels of IP-10 in children with wheezing and whether it correlates with other clinical variables. METHODS: A total of 62 subjects children were hospitalized for lower respiratory tract infection with wheezing and visited the Emergency Department due to an acute exacerbation of asthma. IP-10 levels were measured using enzyme-linked immunosorbent assay in the serum collected at admission. Serum IP-10 levels were evaluated for the relationships with age, sex, blood eosinophils counts, acute phase reactant, allergic sensitization, history of wheezing, and chest X-ray findings. RESULTS: Age showed a significant negative correlation with serum IP-10 levels (P=0.002). The serum levels of IP-10 were also significantly increased in patients with pneumonic infiltration on X-rays compared to those with normal or hyperinflation (P<0.009). There was no significant difference in the serum IP-10 level according to the other factors, including allergic sensitization. CONCLUSION: Serum IP-10 is significantly associated with inflammation of the lung and age, but not with allergic inflammation.

Serum IP-10 Levels Correlate with the Severity of Liver Histopathology in Patients Infected with Genotype-1 HCV

BACKGROUND/AIMS: Interferon-gamma-inducible protein 10 (IP-10) plays important roles in the pathogenesis of hepatitis C virus (HCV) infection. We investigated the association between serum IP-10 levels and liver pathology in patients with chronic HCV infection. METHODS: The serum IP-10 concentration was assessed in 85 patients with chronic HCV infection using a solid phase sandwich enzyme-linked immunosorbent assay, and a liver biopsy specimen was obtained. The pathology was scored using the Knodell histologic activity index (HAI). RESULTS: Of the 85 patients, 58 had genotype 1 HCV infection, 21 had genotype non-1, and 6 were undetermined. The serum IP-10 levels did not differ between patients infected with genotype 1 and genotype non-1 (p=0.472). In patients with genotype 1 infection, the total HAI score and the stage of fibrosis were highly correlated with the serum IP-10 level (r=0.555, r=0.578, p<0.001). Furthermore, the serum IP-10 concentrations of patients with severe fibrosis (stages 3, 4) were higher than those of patients with mild fibrosis (stages 0 to 2; 214.4 vs. 72.3 pg/mL, p=0.002) among patients with genotype 1 infection. However, in patients without genotype 1 infection, the histopathology was not associated with the serum IP-10 level. A multivariate analysis showed that serum IP-10 was an independent predictor of fibrosis (stages 3, 4) in patients with genotype 1 infection (odds ratio, 1.034; 95% confidence interval, 1.006 to 1.064; p=0.018). CONCLUSIONS: Serum IP-10 concentration was significantly correlated with the severity of liver histology in genotype 1 HCV infection.

Elevated Levels of Interferon-inducible Protein-10 (IP)-10/CXCL10, but not of Interferon-gamma, in Patients with Pulmonary Tuberculosis

Mycobacterial strains are potent inducers of cytokines/chemokines by mononuclear phagocytes, which constitute an important cellular component of the first line of defense in the innate immune system. Interferon (IFN)-gamma-inducible protein (IP-10 or CXCL10) is a potent chemoattractant; however, little is known about the IP-10 profiles attributable to the Th1 regulation associated with active tuberculosis (TB). In this study, we investigated the production of IP-10, interleukin (IL)-12 p40, and IFN-gamma by the peripheral blood mononuclear cells (PBMCs) of patients with active pulmonary TB in response to in vitro stimulation with Triton X-100 soluble proteins (TSPs) or the 30-kDa antigen. The TSP antigens used in the present study were isolated and purified from Mycobacterium tuberculosis H37Rv (virulent strain), M. tuberculosis H37Ra (avirulent strain), and Mycobacterium bovis BCG. The results were compared with those obtained for healthy tuberculin reactors (HTRs). Concordant with earlier studies, IFN-gamma production was significantly depressed in the PBMCs from TB patients compared with those in the HTR group. However, the IP-10 levels in the PBMCs from TB patients were significantly elevated 18 h after stimulation compared to those in the PBMCs from HTRs. IP-10 release was correlated in a significant manner with the release of IFN-gamma in the HTRs, but this was not the case for the TB patients. Collectively, these data suggest that TB patients show altered regulation of Th1-driving cytokine and chemokine production in response to a variety of mycobacterial antigens.

SARS-CoV S protein induces chemokine IP-10 expression in airway epithelial cells / 中国病理生理杂志

AIM: To investigate the molecular mechanism by which the SARS-CoV S protein induces chemokine IP-10 in airway epithelial cells.METHODS: cDNA microarrays were used to screen the gene expression profiles of human bronchial epithelial cells(16HBEs) stimulated by SARS-CoV S protein.In addition,RT-PCR,EMSA,and Western blotting were performed to analyze the phosphorylation of JAK/STAT signal pathway.The changes of IRF-1 and IP10 gene expression and the influence by the corresponding inhibitors were analyzed.RESULTS: IRF-1,a key transcription factor of the JAK/STAT signal pathway,was activated in human bronchial epithelial cells after stimulation by the S protein of SARS-CoV.The IP-10 gene expression was detected 2 h following the phosphorylation of STAT1 after 15 min,which was blocked by STAT1or JAK2 inhibitors.Electrophoretic mobility shift assay(EMSA) demonstrated that the nuclear proteins bound to ISRE and GAS but not NF-?B DNA motif.CONCLUSION: The SARS-CoV S protein induces IP-10 gene expression in human bronchial epithelial cells through activation of the JAK/STAT signal pathway,suggesting that the JAK/STAT signal pathway activated by virus plays key roles in virus infection related acute lung injury.