FIG. 5.

GTTR fluorescence is more intense in marginal cells. The fluorescent intensity of marginal cells (cytoplasm only), intra-strial tissues, basal cells, and type I fibrocytes at any given time point in xy optical sections ratioed against that of marginal cells at 30 min. Marginal cells were consistently more intensely labeled with GTTR than other cells. Intra-strial tissues and basal cells are also consistently more intense than type I fibrocytes. GTTR fluorescence generally decreased in intensity in all lateral wall tissues following the peak in fluorescence at 3 h. Note the similar intensity of GTTR fluorescence in basal cells and type 1 fibrocytes at 24 h compared to 6-h time point. All cells from basal coil images acquired and post-processed identically. Some error bars obscured by data symbols.