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. 2022 Jun 23;14(13):3087. doi: 10.3390/cancers14133087

Table 3.

In vitro models utilizing CLL-cell stimulation with recombinant factors.

Recombinant Factor (Concentration) Duration in Days Purification CLL Viability CLL Proliferation Ref.
trimeric anti-CD40L moAb, IL4 (20 ng/mL) 4 PBMCs - [3H]TdR uptake (56% of cells with a high rate
of DNA synthesis)
[50]
trimeric anti-CD40L moAb (0.5 μg/mL) 3 PBMCs 55% (22% *) cell cycle (5.3% of proliferating cells);
31% samples non-responding
[52]
IL4 (2 ng/mL), CD40L plus enhancer (100 ng/mL) 7 CLL ~80% (40–80% *) - [12]
CD40L or anti-CD40 moAb, IL4 (10 ng/mL), IL21 (20 ng/mL) 1.6 PBMCs - [3H]TdR uptake; BrdU cell cycle,
25% cells in S+G2/M phase (0.7–7.8% *)
[11]
CpG (5 μg/mL), IL21 (50 ng/mL) 2.3 CLL no difference from control [3H]TdR uptake, significantly increased proliferation with addition of IL21 [83]
histidine-tagged CD40L (50 ng/mL), anti-polyhistidin mAb (5 μg/mL),
CpG (10 μg/mL), IL2 (50 ng/mL), IL10 (50 ng/mL), IL15 (10 ng/mL), and IL6 (50 ng/mL),
in specific time-dependent sequence
7 CLL differentiation into antibody-producing cells [84]
IL15 (15 ng/mL), CpG (1.5 μg/mL) 6 CLL 60–80% CSFE (~70% divided cells) [64]
IL15 (15 ng/mL), CpG (1.5 μg/mL) 5 PBMCs <5% difference from control CSFE (significantly increased cell division) [78]
anti-IgM (10 µg/mL), trimeric CD40L (100 ng/mL), IL4 (10 ng/mL), and IL21 (25 ng/mL) 6 CLL - CSFE (41% of CLL samples proliferating) [44]

* In the brackets are results from control CLL samples cultured in standard conditions.