期刊
BIOMEDICAL AND ENVIRONMENTAL SCIENCES
卷 23, 期 4, 页码 259-266出版社
CHINESE CENTER DISEASE CONTROL & PREVENTION
DOI: 10.1016/S0895-3988(10)60061-X
关键词
Influenza A virus; Pandemic H1N1; A549; Expression profiling array
资金
- National Basic Research Program of China (973 program) [2010CB534001]
Objective To perform gene expression profiles comparison so that to identify and understand the potential differences in pathogenesis between the pandemic and seasonal A (H1N1) influenza viruses. Methods A549 cells were infected with A/California/07/09 (H1N1) and A/GuangdongBaoan/51/08 (HIND respectively at the same MO1 of 2 and collected at 2, 4, 8, and 24 h post infection (p.i.). Gene expression profiles of A549 cells were obtained using the 22 K Human Genome Oligo Array, and differentially expressed genes were analyzed at selected time points. Results Microarrays results indicated that both of the viruses suppressed host immune response related pathways including cytokine production while pandemic H1N1 virus displayed weaker suppression of host immune response than seasonal H1N1 virus. Observation on similar anti-apoptotic events such as activation of apoptosis inhibitor and down-regulation of key genes of apoptosis pathways in both infections showed that activities of promoting apoptosis were different in later stage of infection. Conclusion The immuno-suppression and anti-apoptosis events of pandemic H1N1 virus were similar to those seen by seasonal H1N1 virus. The pandemic H1N1 virus had an ability to inhibit biological pathways associated with cytokine responses, NK activation and macrophage recognition
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