Fig. 1.
Antibacterial components in T cells and natural killer (NK) cells.
(A) Results of reversed-phase chromatography with the supernatant from T cells and NK cells stimulated with interleukin (IL)–2. The distribution of the antibacterial activity is indicated in the chromatographic profile by double-headed arrows. The characterized antibacterial components were α-defensins (HNP 1-3), lysozyme, a fragment of histone H2B, and LL-37. (B) Western blot analysis for the presence of LL-37 in chromatographic fractions. The chromatographic fractions 36 to 40, which were positive for LL-37 in dot-blot analysis, were further characterized by Western blotting. The lower band in fraction 36 to 38 corresponds to the mature LL-37, whereas the higher bands probably correspond to oligomeric forms.