Identification of staphylococcal protein A in infected atopic dermatitis lesions.
Identification of staphylococcal protein A in infected atopic dermatitis lesions.
复制标题
感染特应性皮炎皮损中葡萄球菌蛋白 A 的鉴定。
DOI:
10.1038/jid.2010.154
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发表时间:
2010
期刊:
影响因子:
--
通讯作者:
Travers,JeffreyB
中科院分区:
文献类型:
--
作者:
Yao,Yongxue;Kozman,Amal;Al-Hassani,Mohammed;Saha,ChandanK;Yi,Qiaofang;Yao,Weiguo;Mousdicas,Nico;Kaplan,MarkH;Travers,JeffreyB
Staphylococcus aureus (S. aureus) infection is a known trigger for skin inflammation and can modulate immune responses. Atopic dermatitis (AD), a chronic inflammatory pruritic skin disease, affects 10–20% of children and 1–3% of adults (De Benedetto et al., 2009). Due to the loss of skin integrity by scratching, as well as decreased levels of antimicrobial peptides in comparison to normal skin or other inflammatory diseases such as psoriasis (Leung, 2003; Ong et al., 2002), patients with AD are particularly susceptible to staphylococcal skin infections, which can further worsen their skin disease (Bieber, 2008). Studies have suggested several underlying mechanisms for staphylococcus-mediated inflammation, which include production of inflammatory cytokines following either direct infection of keratinocytes or immune cells by the bacteria, or indirectly by bacterial products (Baker, 2006; Leung, 2003; Sasaki et al., 2003; Travers et al., 2001). We have demonstrated previously that lipoteichoic acid (LTA), a gram-positive bacterial lipoprotein, may be an important component of the ability of S. aureus to exacerbate AD lesions (Travers et al., 2010). In the present study, we report that staphylococcal protein A (SPA) could also contribute to this process.SPA is a 40–60 kDa bacteria surface protein. It binds to the Fc region of IgG via interaction with the heavy chain, which disrupts opsonization and phagocytosis, contributing to the virulence of S. aureus (Foster, 2005). Studies have shown that SPA can also activate the tumor necrosis factor receptor-1 (TNFR1), which leads to NF-κB and AP-1 activation and subsequent
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影响因子:
10.3
作者:
Sasaki, T;Kano, R;Hasegawa, A
通讯作者:
Hasegawa, A
DOI:
10.1046/j.0022-202x.2001.00045.x
发表时间:
2001
期刊:
The journal of investigative dermatology. Symposium proceedings
影响因子:
--
作者:
Travers,JB;Norris,DA;Leung,DY
通讯作者:
Leung,DY
影响因子:
3.6
作者:
Hanifin, JM;Thurston, M;Graeber, M
通讯作者:
Graeber, M
影响因子:
10.3
作者:
M. White;W. Noble
通讯作者:
W. Noble
影响因子:
158.5
作者:
Ong, PY;Ohtake, T;Leung, DYM
通讯作者:
Leung, DYM