Table 1

Development of Peyer's patches is affected in mice lacking B lymphocytes.

Mouse strainPP numbers
Average Individual mice
B66.8 7, 5, 7, 6, 5, 9, 8, 7, 6, 8, 7
B6-Igh-6 2.1* 3, 2, 2, 2, 3, 2, 2, 3, 2, 1, 2, 2, 2, 2, 2
B6-TCRβ KO 7.0 7, 7, 6, 8, 7, 7
B6-TCRδ KO 6.3 5, 7, 6, 7
B6-TCRβ, TCRδ KO6.8 6, 8, 7, 6, 7, 7
B6-Rag1 KO 0.6* 1, 0, 1, 0
BALB/cJ 10.3 11, 9, 10, 11
BALB/c-JHD1.6* 2, 0, 2, 0, 1, 2, 4, 2, 2, 1, 2
mIgM Tg 9.010, 11, 11, 8, 9, 10, 10, 7, 9, 10, 8, 8, 7
  • * The size of PPs was significantly diminished. PPs on isolated intestines were counted using a Leica MZ6 zoom stereo microscope (28).