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Table 1 List of parameters in the model

From: An in silico exploration of combining Interleukin-12 with Oxaliplatin to treat liver-metastatic colorectal cancer

Parameter

Units

Description

kd1

day−1

Naïve CD8 + T cell natural death rate constant

kd2

day−1

T effector (in lymph node or tumor) or tumor cell death rate constant due to OXP

kd3

day−1

APC (in lymph node or tumor) natural death rate constant

kd4

day−1

OXP natural decay rate constant

kd5

day−1

T effector (in blood) natural death rate constant

kd6

day−1

T effector (in tumor) natural death rate constant

kd7

day−1

Interferon γ natural death rate constant

kd8

day−1

IL-12 natural death rate constant

kd9

day−1

Regulatory T cell natural death rate constant

kd10

day−1

Tumor cell natural death rate constant

kd11

mm3∗day−1

MHC class I positive tumor cell death rate constant due to T effector (in tumor) lysis

kp1

day−1

T effector (in lymph node) proliferation rate constant due to tumor antigens presented by APC in lymph node

kp2

day−1

T effector (in tumor) proliferation rate constant

kp3

ng∗mm−3·day−1

Regulatory T cell proliferation rate constant due to tumor growth and proliferation of T effector in tumor

kp4

day−1

Tumor cell proliferation rate constant

a12

day−1

Rate constant for T cell flow from lymph node to blood

a21

day−1

Rate constant for T cell flow from blood to lymph node

a23

day−1

Rate constant for T cell flow from blood to tumor

a32

day−1

Rate constant for T cell flow from tumor to blood

b23

day−1

Rate constant for APC flow from blood to tumor

b31

day−1

Rate constant for APC flow from tumor to lymph node

c1

cell·mm−3·day−1

Naïve T cell natural production rate constant

c2

day−1

Naïve T cell to T effector (in lymph node) transfer rate constant

c21

day−1

Rate constant for OXP flow from blood to lymph node

c23

day−1

Rate constant for OXP flow from blood to tumor

c4

pg·mm−3·day−1

Interferon γ secretion constant

c5

pg·cell−1·day−1

IL-12 production rate constant by APC in tumor

c6

cells·mm−3·day−1

Regulatory T cell production rate constant

c7

day−1

MHC class I negative to positive tumor cells transfer rate constant

α

(cell·mm−3)2

T effector (in lymph node) saturation constant

K

cell·mm−3

Carrying capacity of APC (in blood)

g1

cell·mm−3

APC (in lymph node) saturation constant

g2

cell·mm−3

APC (in lymph node) saturation constant

g3

mg·kg−1

OXP (in lymph node) saturation constant

g4

ng∗ml

IL-12 saturation rate constant

g5

cell·mm−3

Regulatory T cell saturation constant

g6

mg·kg−1

OXP (in tumor) saturation constant

g7

ng·ml

IL-12 saturation rate constant

g8

cell·mm−3

Regulatory T cell saturation rate constant

g9

cell·mm−3

T effector (in tumor) saturation rate constant

g10

ng·ml

IL-12 saturation constant

g11

pg·mm−3

Cellular Interferon γ saturation constant

g12

mg·kg−1

OXP (in tumor) saturation rate constant

g13

cell·mm−3

Regulatory T cell saturation rate constant

g14

mg·kg−1

OXP (in tumor) killing MHC class I positive tumor cells saturation rate constant

g15

mg·kg−1

OXP (in tumor) killing MHC class I negative tumor cells saturation rate constant

r1

cell−1·day−1

Constant in tumor logistic growth

r2

day−1

Growth rate constant of APC (in blood)