首页> 外文期刊>Infection and immunity >New Type of Exfoliatin Obtained from Staphylococcal Strains, Belonging to Phage Groups Other than Group II, Isolated from Patients with Impetigo and Ritter's Disease
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New Type of Exfoliatin Obtained from Staphylococcal Strains, Belonging to Phage Groups Other than Group II, Isolated from Patients with Impetigo and Ritter's Disease

机译:从葡萄球菌菌株中获得的新型剥落素,属于II类以外的噬菌体组,从脓疱病和Ritter病患者中分离

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Four strains of Staphylococcus aureus of a phage type other than the second group, isolated from patients with impetigo and Ritter's disease, were found to produce an exotoxin similar to those reported by Melish et al. (1972), Kapral and Miller (1971), and Arbuthnott et al. (1973). This toxin could elicit a general exfoliation of the epidermis with the so-called Nikolsky sign when subcutaneously inoculated into neonatal mice within 4 days after birth. The new toxin was serologically different from exfoliatin produced by the phage group II staphylococci previously reported (Kondo et al., 1973) and showed an electrophoretic pattern corresponding to that of the B-type toxin of the latter in acrylamide disc electrophoresis. It had the same molecular weight as that of the latter, which was estimated to be about 24,000. It was thermolabile and lost its toxic activity by heating at 60 C for 30 min; in addition, most of the toxicity was lost within 1 month of storage even at ?30 C. We propose to designate the old typical heat-stable exfoliatin as S. aureus exfoliatin A and the new heat-susceptible exfoliatin as S. aureus exfoliatin B.
机译:从感染性脓疱病和里特氏病的患者中分离出的四株除了第二类之外的噬菌体型金黄色葡萄球菌被发现会产生类似于Melish等报道的外毒素。 (1972),Kapral和Miller(1971)和Arbuthnott等人。 (1973)。当这种毒素在出生后4天内皮下接种到新生小鼠体内时,可能会引起表皮普遍脱落,并带有所谓的Nikolsky征象。这种新的毒素在血清学上不同于以前报道的噬菌体Ⅱ类葡萄球菌所产生的剥落素(Kondo等,1973),并在丙烯酰胺盘电泳中显示出与后者的B型毒素相对应的电泳图谱。它具有与后者相同的分子量,据估计约为24,000。它是不耐热的,在60℃加热30分钟失去了毒性。此外,即使在30°C的温度下,大多数毒性在储存后1个月内消失了。我们建议将旧的典型的热稳定exfoliatin命名为 S。金黄色葡萄球菌素A和新的易受热的脱落素S。金黄色葡萄球菌素B.

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