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2.
J Am Acad Dermatol ; 64(3): 455-72; quiz 473-4, 2011 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-21315950

RESUMO

Superantigens (SAgs) are virulent polypeptides that are produced by a variety of infectious organisms. They are capable of causing nonspecific T cell activation by circumventing normal antigen processing in the human host. The genetic makeup of the host plays a role in conferring susceptibility or protection against SAgs. They are linked to a variety of conditions, ranging from toxic shock syndrome to recurrent toxin-mediated perineal erythema. The early recognition of signs and symptoms of SAg-mediated illnesses is important to ensure prompt medical treatment.


Assuntos
Dermatopatias/imunologia , Superantígenos/imunologia , Apresentação de Antígeno/imunologia , Toxinas Bacterianas/imunologia , Criança , Pré-Escolar , Dermatite Atópica/imunologia , Enterotoxinas/imunologia , Fasciite Necrosante/imunologia , Humanos , Lactente , Ativação Linfocitária/imunologia , Síndrome de Linfonodos Mucocutâneos/imunologia , Psoríase/imunologia , Receptores de Antígenos de Linfócitos T alfa-beta/imunologia , Choque Séptico/imunologia , Síndrome da Pele Escaldada Estafilocócica/imunologia , Staphylococcus aureus/imunologia
3.
Invest Clin ; 49(4): 547-52, 2008 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-19245172

RESUMO

Staphylococcal scalded-skin syndrome (SSSS) is an exfoliative dermatitis resultant from the infection with exfoliative-toxin-producing (ET) Staphylococcus aureus. This syndrome usually occurs in children, while adult cases are generally linked to renal-deficiency or immunossupresion. A case of a 74 year old woman presenting SSSS after hospital admission due to cardiovascular disorders is presented and discussed. Cytokines (TNF-alpha, IFN-gamma, IL-6, IL-13 and IL-10) and nitric oxide (NO) production in vitro by whole blood leukocytes (WBL) were investigated. Leukocytes stimulated by lipopolysaccharide or phytohemagglutinin produced increased IFN-gamma, TNF-alpha, IL-13 and NO levels after treatment. Based on these results, immunological aspects of the disease are discussed.


Assuntos
Citocinas/metabolismo , Óxido Nítrico/metabolismo , Síndrome da Pele Escaldada Estafilocócica/metabolismo , Idoso , Feminino , Humanos , Interferon gama/metabolismo , Interleucina-10/metabolismo , Interleucina-13/metabolismo , Interleucina-6/metabolismo , Leucócitos/metabolismo , Síndrome da Pele Escaldada Estafilocócica/imunologia , Fator de Necrose Tumoral alfa/metabolismo
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