Table 1.
Gene
|
Mechanism
|
References
|
Angiogenesis | Expression of FasL allows selective killing of effector T cells through tumor-derived VEGF, IL-10, and prostaglandin action. | Motz et al.[20] Carman et al.[21] |
Expression of molecules such as IDO and STING by endothelial cells is associated with response or overcoming resistance to immunotherapy. | Seeber et al.[27] Chevolet et al.[28]; Krähenbühl et al.[29] Meireson et al.[30] Yang et al.[33] | |
EGFR Mutation/ Overexpression | Aberrant expression leads to decreased PD-L1 expression in NSCLC and is associated with decreased tumor mutational burden and immunogenicity. | Dong et al.[45]; Soo et al.[46]; Zhang et al.[49]; Gainor et al.[52] |
Activating mutations associated with increased PD-L1 and immunosuppressive cytokine expression, and reduced T-cell viability. | Chen et al.[39]; Akbay et al.[40]; Azuma et al.[41] | |
PTEN Loss | Loss leads to increased PD-L1 expression, increased autologous T-cell apoptosis, and overall decreased tumor immunogenicity. | Parsa et al.[65]; Waldron et al.[66] |
PTEN loss leads to increased immunosuppressive cytokine expression (including VEGF), decreased T-cell trafficking, and inhibition of autophagy and cytolytic activity. | Peng et al.[67]; George et al.[69] | |
NOTCH Amplification | Promotes an immunosuppressive microenvironment by increasing myeloid-derived suppressor cells, tumor-associated macrophages and regulatory T cells, and decreasing cytotoxic T cells. | Shen et al.[78] Balli et al.[79] Qiu et al.[80] |
Activation of the NOTCH pathway promotes TH1 and inhibits TH2 differentiation. | Tindemans et al.[81] | |
Promotes TGFβ signaling-mediated tumor growth through upregulation of proinflammatory IL1B and CCL2 cytokines and recruitment of tumor-associated macrophages. | Shen et al.[78] |
FasL: Fas ligand; VEGF: vascular endothelial growth factor; IL-10: interleukin-10; IDO: indoleamine 2,3-dioxygenase; STING: stimulator of interferon genes; PD-L1: programmed death-ligand 1; NSCLC: non-small cell lung cancer; PTEN: phosphatase and tensin homolog; TH1: T helper type 1; TH2: T helper type 2; TGFβ: transforming growth factor beta; IL1β: interleukin 1 beta; CCL2: C-C motif chemokine ligand 2.