Table 1.
Cell division-based model’s parameters. Concentrations are in units of k/μL, and time is measured in days
Parameter | Description | Estimate |
---|---|---|
A0(0) | Initial concentration of immature APCs | sA/d0 = 10 |
T0(0) | Initial concentration of naïve T cells | sT/δ0 = 0.04 |
sA | Supply rate of immature APCs | 0.3 |
sT | Supply rate of naïve T cells | 0.0012 |
d0 | Death/turnover rate of immature APCs | 0.03 |
δ0 | Death/turnover rate of naïve T cells | 0.03 |
d1 | Death/turnover rate of mature APCs | 0.8 |
δ1 | Death/turnover rate of effector T cells | 0.4 |
k | Kinetic coefficient | 20 |
m | Number of divisions in minimal developmental program | 7 |
n | Maximum number of antigen-dependent divisions | 3, 10, 16 |
ρ | Duration of one T cell division | 1/3 |
σ | Duration of minimal developmental program | 3 |
a(t) | Rate of APC stimulation | c1[0,b] or (3) |
b | Duration of antigen availability | 10 |
c | Level of APC stimulation | 1 |