Lung adenocarcinoma tumor markers mainly include carcinoembryonic antigen (CEA), squamous epithelial cell carcinoma antigen (SSCCA), gastrin-releasing peptide (Pro-GRP), cytokeratin 19 fragment antigen 21-1 (CYFRA21-1).
1. Carcinoembryonic antigen: a broad-spectrum tumor marker that can assist in diagnosis, monitoring efficacy and recurrence.
2. Squamous Epithelial Cell Carcinoma Antigen (SECA): it is the only tumor marker for distinguishing squamous lung cancer from adenocarcinoma of the lung, the sensitivity increases with the stage of the tumor, and the increase usually indicates the deterioration of the disease accompanied by metastasis, and it is often used for monitoring the efficacy of treatment and judging the prognosis.
3. Gastrin-releasing peptide: it mainly exists in gastrointestinal tract, respiratory tract and central nervous system, and is more stable in blood. It is a highly specific tumor marker for small cell lung cancer.
4. Cytokeratin 19 fragment antigen 21-1: it is a new tumor marker, which is of great value in the diagnosis of non-small cell lung cancer.
It is recommended that lung adenocarcinoma patients should go to regular hospitals in time to improve relevant examinations for early detection and diagnosis, and standardize treatment under doctors’ guidance to avoid delaying the condition.