This study investigated the curative and toxic effects of three-dimensional conformal radiotherapy (3D-CRT), using repeated CT scans for field reduction in older non-small-cell lung cancer (NSCLC) patients. 3D-CRT was administered to 36 older patients with NSCLC, and irradiation fields included the primary lesion and metastatic lymph nodes. After CT localization scanning, images were fed into a treatment planning system to delineate the gross tumor volume (GTV)1 and prepare Plan 1.
Non-small-cell lung cancer
The epidermal growth factor receptor (EGFR) inhibitors gefitinib and erlotinib are effective in the treatment of advanced non-small-cell lung cancer (NSCLC), but the median survival of patients is short. Here, we describe 2 patients with NSCLC receiving conventional chemotherapy and alternative treatment with gefitinib or erlotinib as second-line therapy. The first patient was alive at 8 years with alternative conventional chemotherapy and gefitinib, and the second patient was alive at long-term follow-up with conventional chemotherapy and gefitinib or erlotinib.
Monocyte chemoattractant protein 1 (MCP-1) is an important chemokine that has a dose-dependent anti-tumoral effect. Polymorphism in the MCP-1 distal regulatory region (-2518A/G) can affect the level of MCP-1 expression. We examined the polymorphisms of 112 unrelated patients with non-small-cell lung cancer (NSCLC) and 82 unrelated healthy controls of Han nationality in North China using PCR-RFLP. We found that the distributions of AA, AG and GG genotypes of MCP-1-2518 were significantly different in NSCLC patients compared to controls (X2 = 10.106, P = 0.006).