Abstract
Pulmonary sarcomatoid carcinoma (PSC), a rare subtype of non-small cell lung cancer, is highly malignant and has a poor prognosis. Treatments for PSC are presently limited. Traditional treatments provide fewer benefits to PSC patients and are associated with early recurrence and metastasis. Surgical intervention is the preferred option for early-stage PSC patients, whereas chemotherapy, radiotherapy, immunotherapy, and other targeted therapies are recommended for advanced PSC patients. Targeted therapy is only effective in a small number of PSC patients. The initial efficacy of immune checkpoint inhibitors has been acceptable in patients with advanced PSC; therefore, much attention on related biomarkers has been sought. This article aimed to review the research progress of PSC immunotherapy and related diagnostic and prognostic biomarkers in recent years.
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