The expression of PD-1 ligands in the immune microenvironment was altered in TTF-1-negative lung adenocarcinoma
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Thyroid transcription factor-1 (TTF-1) is a lineage-specific marker for lung adenocarcinoma (LUAD), whereas the relatively minor subset of TTF-1-negative LUADs shows a poor prognosis and a limited response to therapy. However, its relationship with the tumor i... ...
