Abstract:TCR signaling plays a critical role in regulatory T cell (Treg) development. However, the mechanism for tissue specific induction of Tregs in the periphery remains unclear. Surfactant protein A (SP-A) is a major immune defense protein in the lung. To determine if SP-A contributes to the normal non-inflammatory status mediated by Tregs in the lung, T cells were activated with various stimuli. Compared to WT mice, on ex vivo culture, T cells from lungs of SP-A deficient mice have impaired expression of Foxp3 and… Show more
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