Journal: Chinese Medical Journal
Article Title: Plasmacytoid Dendritic Cell Function and Cytokine Network Profiles in Patients with Acute or Chronic Hepatitis B Virus Infection
Figure Lengend Snippet: Frequency and molecular expression of pDC in IT, CHB and AHB groups. (a) AHB group had significantly higher PBMC percent in peripheral blood leukocytes, compared with CHB or IT group. (b) Frequency of pDC in PBMC decreased in AHB and CHB groups, compared with IT group. (c) The difference in CD86+ pDC frequency among three groups was not significant. (d) The counts of CD86 molecular expressed on surface of pDC in CHB group was higher, compared with AHB and IT groups. IT group: HBeAg-positive chronic hepatitis B virus infected patients in immune tolerance phase; CHB group: HBeAg-positive chronic hepatitis B infected patients; AHB group: Acute hepatitis B virus infected patients; PBMC: Peripheral blood mononuclear cells; pDC: Plasmacytoid dendritic cell; CD86: Cluster of differentiation antigen 86.
Article Snippet: Frequency and molecular expression of plasmacytoid dendritic cell In this study, the peripheral blood mononuclear cells (PBMCs) percentage of peripheral blood leukocytes, frequency of pDC in PBMC, frequency of cluster of differentiation antigen 86 (CD86) + pDC, and the counts of CD86 molecular expressed on surface of pDC were measured by four-color flow cytometry (FACS Caliburflow Cytometer; Becton-Dickinson, USA); and the steps to measure the expression of pDCs were as follows: the 100 μl of whole peripheral blood samples were incubated with monoclonal antibodies (mAbs) of Lin1-fluorescein isothiocyanate, human leukocyte antigen DR (HLA-DR)-peridinin chlorophyll protein, CD123-human antigen presenting cells, and CD86 - phycoerythrin (PE; all provided by BD Biosciences, Cowley, UK) inappropriate tubes at room temperature in the dark for 20 min, then added 2 ml of fluorescence activating cell sorter (FACS) Lysing solution and incubated at room temperature in the dark for 5 min, centrifuged at 300 ×g for 5 min, aspirated the supernatant, then added 2 ml of phosphate buffer saline (PBS) and vortex gently, centrifuged at 300 ×g for 5 min and aspirated the supernatant again, vortex gently and re-suspended with 200 μl PBS; finally analyzed using the FACS flow cytometer. pDCs were identified as mononuclear cells that the Lin1-(CD3-CD14-CD16-CD19-CD20-)/HLA-DR+/CD123+, the activation/maturation state of pDC was assessed by the co-stimulatory molecules CD86 in Lin1-CD123+ HLA-DR+cells.
Techniques: Expressing, Infection