1. Receptors and Signal Transduction Section, Oral Infection and Immunity Branch, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, MD 20892, USA
2. Department of Cell and Molecular Biology and Pathogenic Bioagents, Faculade de Medicina de Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP 14049-900, Brazil