TP53 and lung adenocarcinoma: <h4>Background</h4>Understanding p53-independent regulatory mechanisms is crucial for predicting outcomes in lung adenocarcinoma (LUAD) and developing improved therapeutic strategies.<h4>Results</h4>We found that PDLIM4 is highly expressed in LUAD tumor tissues, where it induces G2/M phase cell cycle arrest and suppresses cell proliferation, suggesting its potential role in improving patient prognosis.