Carboxyfluorescein succinimidyl ester (CFSE) labeling of the cells showed that in the absence of cytokines, few Treg cells that remained in the culture did not undergo proliferation whereas Tcon cells proliferated vigorously (Fig. 1b).
In vitro culture demonstrated that MSCs on scaffolds proliferated vigorously and produced abundant collagen.
The rhesus monkeys on a calorie-restriction diet in the study have significantly more young T cells an important component of the immune system and these T cells can proliferate vigorously, says Janko Nikolich-Zugich, senior scientist at the Oregon Health and Science University's Vaccine and Gene Therapy Institute, who led the research.
After day 4, the F3-effluc cells proliferated vigorously in 24-well plates, showing a neurosphere-like feature.
The F3-effluc encapsulated within a soft 1,800 pascal (Pa) hydrogel and stiff 5,800 Pa hydrogel proliferated vigorously in a 24-well plate until day 8.
In naïve mice the CCR6+ Th cell subpopulation proliferated vigorously.
In contrast, in plasma-free medium, the enzymatically-dispersed HPO cells did not proliferate vigorously during culture (Fig. 2D).
As shown in Figure 3D, infiltrating melanoma DP T cell clone exhibited a very poor proliferative response whereas CD8 SP T cell clone, used as positive control, proliferated vigorously in response to the same stimuli.
Therefore we studied proliferation of sorted naïve (CD45RA+CD45RO−; TN) or memory (CD45RA−CD45RO+; TMEM) CD8+ T cells in response to Salmonella-infected B cells. Figure 2C illustrates that the naïve CD8+ population do not proliferate over background values upon stimulation with Salmonella-infected B cells, whereas the memory CD8+ T cells proliferated vigorously.
CD25+ T cells derived in the absence of IL-4 proliferated vigorously in response to CD3 stimulation, did not inhibit CD25- T cell proliferation (Fig. 1C), produced high levels of the effector cytokines IFNγ and TNF after restimulation with PMA/ionomycine [23] and thus, represented activated effector T cells.
In response to these cytokines, synovial fibroblasts proliferate vigorously and form villous hyperplastic synovial tissues.
