Fig. 4.
![Fig. 4. Combinations of three cytokines can selectively promote DNA synthesis by GC B cells. Paired GC B cells (A) and resting B cells (B) were cultured for 6 days with CD40 MoAb, G28-5 in the presence of CD32-L cells and various combinations of three cytokines after which [3H]thymidine uptake was measured. These cytokine combinations acted synergistically in promoting DNA synthesis by GC B cells (see Results). Data are mean cpm ± SD for three to five experiments.](https://ash.silverchair-cdn.com/ash/content_public/journal/blood/89/3/10.1182_blood.v89.3.919/8/bl_0021f4.jpeg?Expires=1735529182&Signature=pHsF7PmYbEpFqb5SNZB6Ek~b-MthhobzgS91GGbf8oPDBEcdTKg6CTArSOAHUJoneoSvgBoQAfhlduowmLU6~NoUUb4ApqO0Hmc~dkSGiMkLdJpjeeL5ZlRtdfa1Hm0-~BNzLH52t8uDzyjlXpZ2fTPFW8qEW2gEXTSTnyDgf~5fH~MxUW4JdWI7-jw0P8tVbzSxZVp82gierIZmoRfy6lwTaHopCaiaFkhYoTNIoTNQLFXWyMuELga4hGTFXnRtJ30eFXiWpa-9yiO6sSaMlJN3EvzDyEtQO-DhUk8278MPsIxXSgZ-KLvdRWbzZrDDVRHqXX34xfAyCt6Jtu5U4w__&Key-Pair-Id=APKAIE5G5CRDK6RD3PGA)
Combinations of three cytokines can selectively promote DNA synthesis by GC B cells. Paired GC B cells (A) and resting B cells (B) were cultured for 6 days with CD40 MoAb, G28-5 in the presence of CD32-L cells and various combinations of three cytokines after which [3H]thymidine uptake was measured. These cytokine combinations acted synergistically in promoting DNA synthesis by GC B cells (see Results). Data are mean cpm ± SD for three to five experiments.
