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Objective To investigate the expressions of interleukin-33 (IL-33),soluble growth stimulation expressed gene 2 (sST2) and transforming growth factor β1 (TGF-β1) in the patients with systemic sclerosis (SSc) and their correlations.Methods Serum IL-33,sST2 and TGF-β1 levels from 25 SSc patients and 25 healthy controls were determined by an enzyme linked immunosorbent assay (ELISA).The expressions of IL-33 in the damaged skin tissue of SSc patients and normal skin tissue were detected with the immunohistochemical staining.Results Serum IL-33 and TGF-β1 levels in SSc patients were significantly higher than that in healthy controls (P ＜ 0.05),and serum IL-33 levels were positively correlated with TGF-β1 levels in SSc patients (P ＜ 0.05).Immunohistochemical staining results showed that the expression level of IL-33 in the damaged skin tissue of SSc patients were significantly higher than that in normal skin tissue (P ＜ 0.05).However,there was no significant difference in the expression level of sST2 between SSc patinets and healthy controls.Conclusion Serum IL-33 levels in SSc patients increase significantly,which is correlated with the expression of TGF-β1,indicating that IL-33 may play an important role in the process of inflammation and fibrosis of SSc via the regulation of TGF-β1.
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Objective To explore the clinical features of antineutrophil cytoplasmic antibodies-associated vasculitis com-bined with pulmonary fibrosis and the relationship of laboratory results.Methods Totally,33 patients with antineutrophil cyto-plasmic antibodies-associated vasculitis were divided into pulmonary fibrosis group(group A)and non-pulmonary fibrosis group (group B).Fourteen patients with connective tissue diseases-related pulmonary fibrosis served as disease control group,and 12 healthy people as normal control group.The levels of ANCA,plasma creatinine,high-sensitivity C-reactive protein,fibrinogen and D-dimer were detected.Results The creatinine level was significantly higher in group B than in disease control group and normal control group.The creatinine level was higher in group A than in disease control group and normal control group,with-out significant differences.The levels of FIB,D-D,and hsCRP were significantly higher in the group A,group B and disease con-trol group(all P< 0.05).In the group A,MPO expression was positively associated with FIB concentration(r= 0.64,P<0.05).Conclusion In pulmonary fibrosis disease,early detection of ANCA has clinical value in the diagnosis of AASV.And the higher concentration of M PO may hint thrombus formation.
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The variable heavy chain region (VH) genes of 3 untreated patients with B-cell chronic lymphocytic leukemia (B-CLL) were cloned and analyzed. The VH family used was VH3-11, VH3-72 and VH3-33. More than 2% difference from the corresponding germline gene was detected in all the 3 obtained potential functional genes (average 16.7). Mutation pattern analysis indicated evidence of antigen selective pressure observed in 1 of 3 cases. Our findings suggested that the tumor cells originate from post-GC cells.
Subject(s)
Humans , Amino Acid Sequence , Gene Rearrangement , Immunoglobulin Variable Region , Genetics , Leukemia, Lymphocytic, Chronic, B-Cell , Genetics , Molecular Sequence Data , MutationABSTRACT
The variable heavy chain region (VH) genes of 3 untreated patients with B-cell chronic lymphocytic leukemia (B-CLL) were cloned and analyzed. The VH family used was VH3-11, VH3-72 and VH3-33. More than 2% difference from the corresponding germline gene was detected in all the 3 obtained potential functional genes (average 16.7). Mutation pattern analysis indicated evidence of antigen selective pressure observed in 1 of 3 cases. Our findings suggested that the tumor cells originate from post-GC cells.