Example 8

Lymphoma Stromal Cells (LSCs) Promote Lymphoma Development in a NO-Dependent Manner

To examine the effect of lymphoma stromal cells on tumor growth, 355 B-cell lymphoma cell line (C3H-gld/gld background, 0.5×106 cells/mouse) was co-injected with gld/gld mice-derived lymphoma stromal cells (C3H background, P5, 0.25×106 cells/mouse). It was observed that co-injection of stromal cells significantly enhanced the mortality. Interestingly, administration of 1400 W (NOS inhibitor, 0.1 mg/mouse on day 0, 2, 4, 8, 12, 16, 20, 24, and 28) significantly reverted the effect (FIG. 4). Therefore, the tumor stromal cells could significantly promote tumor growth.

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