Based on the diffraction effect of the waveguide grating, a hybrid structure of an all-dielectric multilayer film and a sub-wavelength dielectric grating is proposed. The discrete state provided in the sub-wavelength waveguide grating couples with the continuous state provided in the Fabry-Perot cavity (F-P cavity) containing the photonic crystal to form a Fano resonance. The relationship between the structural parameter and the incident angle is analyzed by numerical simulation.
View Article and Find Full Text PDFAnticancer Agents Med Chem
January 2022
Background: In previous studies, we provided evidence suggesting the involvement of γ-synuclein in growth, invasion, and metastasis of colon cancer cells in vitro and in vivo. Among γ-synuclein downstream genes, the microtubule-associated protein 1 Light Chain 3 (LC3), an autophagy gene, was screened by gene expression profile chip analysis.
Objective: We planned to investigate the functional effects of γ-synuclein on autophagy induced by ER stress in colon cancer cells.
Background: Genetic alterations play an important role in the progression of colorectal cancer (CRC). Identifying new biomarkers to assess the prognosis of patients with CRC is critical. Cartilage intermediate layer protein 2 (CILP2) gene, screened from TCGA database by bioinformatics, may be closely related to the progression of CRC.
View Article and Find Full Text PDFPurpose: To explore the correlation between tumor-infiltrating immune cell subsets and breast cancer prognosis.
Materials And Methods: Specimens of 102 patients with invasive ductal carcinoma of the breast were analyzed for immune-related markers (CD8, CD20, FOXP3 and CD68). The number of positive cells in the 3 most highly stained intratumoral stroma areas of the primary tumor was counted.
Arachidonic acid (AA) is a precursor that is metabolized by several enzymes to many biological eicosanoids. Accumulating data indicate that the ω-hydroxylation metabolite of AA, 20-hydroxyeicosatetraenoic acid (20-HETE), is considered to be involved in the myocardial ischemia-reperfusion injury (MIRI). The inhibitors of AA ω-hydroxylase, however, are demonstrated to exhibit protective effects on MIRI.
View Article and Find Full Text PDFZhonghua Wei Chang Wai Ke Za Zhi
April 2016
Objective: To construct a lentiviral vector carrying the γ-synuclein(SNCG) gene and establish a human colorectal carcinoma cell line SW1116 stably expressing this gene, and then investigate the inhibition of the growth and invasion capacity of SW1116 cells.
Methods: RNA interference fragment was designed according to the SNCG sequence (GenBank: No.NM003087.
The purpose of the present study was to evaluate the protective effects of astragaloside IV (AS IV) against paraquat (PQ)-induced pulmonary injury in vivo. Fifty BALB/C mice were randomized into five groups: (1) control, (2) PQ, (3) PQ + dexamethasone (Dex, 5 mg/kg), (4) PQ + AS IV (50 mg/kg), and (5) PQ + AS IV (100 mg/kg). A single dose of PQ (50 mg/kg, i.
View Article and Find Full Text PDFThe existence of cancer stem cells (CSCs) is considered as a direct reason for the failure of clinic treatment in hepatocellular carcinoma (HCC). Growing evidences have demonstrated that miRNAs play an important role in regulation of stem cell proliferation, differentiation and self-renewal and their aberrances cause the formation of CSCs and eventually result in carcinogenesis. We recently identified miRNA-148b as one of the miRNAs specifically down-regulated in side population (SP) cells of PLC/PRF/5 cell line.
View Article and Find Full Text PDFZhonghua Wei Chang Wai Ke Za Zhi
January 2014
Objective: To construct γ-synuclein gene eukaryotic expression vector, and to study its effect on the invasion of colon cancer cell line SW1116 and the adhesion between SW1116 and human umbilical vein endothelial cells(HUVECs) in vitro.
Methods: Total RNA was extracted from colon cancer cell line HT29 and the cDNA of γ-synuclein was amplified using RT-PCR. The digested fragment of cDNA coding sequence was linked to the eukaryotic expression vector pEGFP-C1 containing the GFP gene.
The aim of this study was to identify cancer stem cells (CSC) from three hepatocellular carcinoma (HCC) cell lines and to screen for specific microRNAs (miRNAs) regulating CSCs. Side population (SP) phenotype analysis was used. Four factors in the staining process, the incubation time, shaking interval, culture time and Hoechst 33342 concentration were explored, respectively, to define the SP subtype.
View Article and Find Full Text PDFRecent evidence suggests the involvement of γ-synuclein in tumorigenesis and tumor progression. The present study was designed to further clarify the effects of γ-synuclein on the biological features of colon cancer cells in vitro and in vivo. We constructed the eukaryotic expression vector and siRNA vector and selected stable transfectants to respectively upregulate and downregulate γ-synuclein expression in SW1116 cells.
View Article and Find Full Text PDFAims: To obtain floating spheres from the adherent gastric cancer cell line SGC-7901 and to analyze the properties of the spheres.
Methods: Serum-free medium was applied to cultured SGC-7901 cells. Limiting dilution assay, tumor formation assay, microarray analysis, and real-time fluorescent quantitative PCR were used to test the stem cell properties of the spheres.