Our study identified the TGFβ1/integrin β3 axis as a promising target for combination therapy to delay or overcome acquired resistance to EGFR TKIs in EGFR-mutant lung cancer.
However, for TGF-β1 T + 869C, subgroup analysis showed no correlation between the T + 869C polymorphism and lung cancer susceptibility in patients with NSCLC.
In conclusion, these results suggested that AA may inhibit TGF-β1-induced EMT in lung cancer through increased expression of E-cadherin, and inhibition of Snail, N-cadherin and vimentin expression.
The results show that the <i>TGFβ-EMT</i> signature successfully discriminated lung cancer cell lines capable of undergoing EMT in response to TGFβ-1 and predicts MFS in lung adenocarcinomas.
Conclusively, it is the first study ever reporting that a pre-treatment of cells with TGF-β1 for experimental lung cancer metastasis mouse model may portray a more precise approach for the development of potential therapeutic treatments.
SIGNIFICANCE: This study provides new mechanistic insight of the interaction between HTRA3 and TGFβ in lung cancer by illustrating that HTRA3 is a novel mediator acting as a suppressor of TGFβ1-related oncogenic effects.
High SPARC mRNA expression in lung cancer tissues could inhibit the progression of lung cancer, while high TGFβ1 mRNA expression can promote the progression of lung cancer and participate in the metastasis of lung cancer.
We also observed long-term TGFβ1 exposure leads to an enrichment of a sub-population of CD44<sup>+</sup> CD90<sup>+</sup> cells which represent CSCs in lung cancer cells.
We hypothesized that in patients with lung cancer treated with radiation therapy (RT), TGF-β1 levels may correlate with the percentages of CD4<sup>+</sup> T cells, CD8<sup>+</sup> T cells, and the CD4<sup>+</sup>/CD8<sup>+</sup> T cell ratio in peripheral blood.
We identified trihydroxyphenolic compounds as potent blockers of TGF-β1 responses (IC50 ~50 nM), Snail1 expression, and collagen deposition in vivo in models of pulmonary fibrosis and collagen-dependent lung cancer metastasis.