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. 2008 Sep 1;205(9):1949–1957. doi: 10.1084/jem.20081007

Figure 1.

Figure 1.

Happloinsufficiency in plasma cell tumor development in AID+/− mice. (A) Photomicrographs of plasma cell tumors arising in BALB/c-Bcl-xL AID+/+ and BALB/c-Bcl-xL AID+/− mice show no significant variations in plasma cell morphology. Bar, 20 μm. (B, left) Incidence of plasma cell tumors in the presence of Bcl-xL as determined by the histological appearance of foci, with each containing 50 or more atypical plasma cells (red squares, plasma cell tumors in 36 out of 41 AID+/+ mice injected with pristane; black circles, plasma cell tumors in 58 out of 96 AID+/− mice). (right) Plasmacytoma development in AID+/+ (n = 16) and AID+/− (n = 39) mice in the absence of Bcl-xL.