Objective To investigate the effects of antisense oligonucleotide against miRNA-155 (AS-miRNA-155) on proliferation,apoptosis and invasion and migration abilities of human cutaneous squamous cell carcinoma cell line A431. Methods AS-miRNA-155 was transfected into human cutaneous squamous cell carcinoma A431 cells by using LipofectamineTM 2000. Blank control without transfection and transfected with non-sense sequence were used as non-sense sequence control. Quantitative real-time polymerase chain reaction (qRT-PCR) was performed to detect the expression of miRNA-155 in A431 cells. Cell proliferation was analyzed using dimethyl thiazolyldiphenyl tetrazolium (MTT) assay. Cell cycle arrest and apoptosis were studied by flow cytometry (FCM). Invasion and migration were measured by Transwell chamber assays. Results The relative expression of miRNA-155 mRNA was lower in the transfection group than that in the blank control group and the negative control group (F=634.57, P<0.01), but there was no significant difference between the blank control group and the negative control group. After 72 h transfection, the survival rate was significantly lower in the transfection group than that of the blank control group and the negative control group, and the transfection rate decreased significantly by 120 h (P<0.05). Cells of G0/G1 phase increased, Cells of S phase reduced, the overall PI value decreased in transfection group, and the apoptosis rate of A431 cells, migration and invasion of cells increased (P<0.05). There was no significant difference in G2/M cycle between transfection group, blank control group and negative control group. There were no significant differences in A431 cell apoptosis rate, cell migration and invasive ability between blank control group and negative control group. Conclusion Antisense oligonucleotide against miRNA-155 can inhibit the expression of miRNA-155, the proliferation and promote the apoptosis of human cutaneous squamous cell carcinoma A431 cells, which indicates that miRNA-155 may become a new target for the regulation of gene expression in cutaneous squamous cell carcinoma.

Anion Transport Proteins ; physiology ; Hair Cells, Auditory, Outer ; physiology ; Humans

Objective To summarize the clinical results of combined procedure of resections and constructions of bronchus,great vessels and heart in the treatment of 79 patients with central lung cancer.Methods From Jun,1988 to Jun,2005,the combined procedure of resections and constructions of bronchus,great vessels and heart were carried out in 74 patients with central lung cancer.The operations included ring of bronchus or sleeve lobectomy in 57 cases,double sleeve lobectomy in 15 cases,carinal resection and reconstruction in 4 cases.Results There was no operative deaths and 7(8.86 %) patients had operative complications.The survival rates of 12,36,60 months and 10 years were 78.5%,59.5%,35.4% and 17.7% respectively.Conclusion With the treatment of sleeve lobectomy or combined with resection and reconstruction of pulmonary artery,great vessels or heart,the pulmonary function can be protected significantly,and the cure rate and the long term survival rate can be improved in patients with central lung cancer.

Hearing Loss, Sudden ; diagnosis ; therapy ; Humans ; Reference Standards

Child ; Coronary Aneurysm ; complications ; Humans ; Male ; Mucocutaneous Lymph Node Syndrome ; complications ; Multiple Organ Failure ; complications ; Shock ; complications

Child ; Child, Preschool ; Female ; Heart Defects, Congenital ; metabolism ; Humans ; Male ; Troponin I ; metabolism

Animals ; Hypertension, Pulmonary ; chemically induced ; physiopathology ; Monocrotaline ; adverse effects ; Rats ; Rats, Sprague-Dawley ; Thrombomodulin ; metabolism

Objective To evaluate the effect of percutaneous closure of patent ductus arteriosus(PDA)on left ventricular size and function by measuring plasma N-terminal brain natriuretic peptide(NT-proBNP)level and using two-dimensional echocardiography.Methods According to the modified Ross score,55 children with PDA were divided into 3 groups,no congestive heart failure(CHF)group(31 cases),mild CHF group(14 cases)and moderate-severe CHF group(10 cases).Fifteen age-matched and weight-matched normal children were used as controls.Plasma NT-proBNP was measured using enzyme-linked immunosorbent assay(ELISA).All patients had complete echocardiographic study,including measurement of left ventricular end diastolic volume index(LVEDVI),left ventricular end systolic volume index(LVESVI),and left ventricular ejection fraction(LVEF),and left ventricular fractional shortening(LVFS).The correlation between plasma NT-proBNP level and echocardiographic cardiac functional indexes was determined.Results 1.Before operation LVEDVI and LVESVI in PDA patients were obviously higher than those in normal controls(Pa0.05).3.Three months after operation plasma NT-proBNP level,LVEDVI and LVESVI were significantly decreased(P

Objective To explore the association of Toll-like receptor 4 TLR4 and lipopolysaccharide receptor CD14 gene polymorphisms with Kawasaki disease (KD) susceptibility.Methods Three-color fluorescent staining flow-cytometry was used to detect the expression of TLR4 in peripheral blood white blood cell of 76 KD children and 118 healthy control group.The gene of TLR4 (-896A/G), (-1196C/T) and CD14 (-260C/T) polymorphisms was identified by polymerase chain reaction-restriction fragment length polymorphisms; and the relationship between genotype and KD was analyzed.Results 1.The values of mean fluorescence intensity (MFI) of TLR4 in peripheral blood white blood cell of the KD groups and the healthy control groups were 2.87?0.96, 10.55?4.87, 23.36?8.28 and 3.26?0.65, 7.55?1.21, 25.41?6.97, respectively; There was a gradual increase of these values on lymphocyte, neutrophilic leukocyte and mononuclear cell in both groups.2.(-896A/G), (-1196C/T) polymorphisms of TLR4 gene were not found in both groups.3.The frequency of each genotype of CD14 gene (-260C/T) was 35.5%CC, 30.3%CT, 34.2%TT in KD group and 38.1%CC, 47.5%CT, 14.4%TT in healthy control group.The frequency of each genotype was significantly different in 2 groups(?2=11.62 P

Air ; Animals ; Diving ; Male ; Rats ; Rats, Sprague-Dawley ; Reactive Oxygen Species ; metabolism ; Spleen ; metabolism