As the main defensecell of the host immune response, neutrophils present lots of biological behaviors such as chemotaxis, phagocytosis, generating oxygen free radicals and so on.
作为宿主抵抗感染的主要防御细胞，中性粒细胞具有趋化、吞噬、产生氧自由基及释放作用等生物学特性。
2
Once the defense mechanism is shut off, mRNA carrying the genes for cell reprogramming can be safely delivered.
只要关闭了这种自卫机制，能够重新编码细胞且携带遗传基因的信使RNA就能安全导入了。
3
Objective To explore the differential expression of genes for cell and organism defense in brain tissue in stroke-like episodes induced by stress in rats.