Objective Study on superantigen Pseudomonas aeruginosa exotoxin A (PE) and its relationship with accessory cell (AC).(目的研究銅綠假單胞菌外毒素A（PE）的某些抗原性及其與輔助細(xì)胞的關(guān)系。)

Objective in order to isolate and purify an exotoxin of Streptococcus mitis which can cause toxic shock syndrome and investigate its pathogenicity.(目的分離與純化致中毒性休克綜合征緩癥鏈球菌外毒素蛋白，并對其致病性進(jìn)行初步研究。)

The toxin may be formed within the pathogen and released when it dies (endotoxin), or secreted through its cell wall (exotoxin).(由病原體通過細(xì)胞壁向外分泌的毒素為外毒素。)

And no diphtherotoxin was detected in its soluble metabolites indicating that cell wall defect might affect the production of diphtherotoxin, therefore lost its pathogenic role in exotoxin production.(提示細(xì)胞壁缺陷變異可影響白喉棒狀桿菌產(chǎn)生白喉毒素蛋白質(zhì)，從而使其喪失了產(chǎn)生外毒素致病的作用。)