Gene expression changes in patients with anthracosis can cause lung cancer

IntroductionAnthracosis of the lung occurs due to the deposition of carbon and silica in the mucosa and sub mucosa, manifested as black lesions. The association of anthracosis with lung cancer has remained to be clearly elucidated the current study aimed to assess the P16, CDH1 and LUNX genes expression level to evaluate the association of anthracotic lesions in the lungs with the occurrence of lung cancer.Methods50 biopsy samples were taken from the center and 50 from the margins of black anthracotic lesions in the lungs; RNA was extracted from the samples and cDNA was synthesized. Real-time reverse-transcription polymerase chain reaction (RT-PCR) was performed to assess the expression of P16, CDH1 and LUNX genes. All steps were performed in triplicate.ResultsA significant reduction in P16 gene expression was noted at the center compared to the margins of the lesions (P<0.001). expression level of CDH1 at the center of lesions was significantly lower than margins (P<0.001). However, LUNX gene had significantly higher expressionlevel at the center compared to margins (P<0.001).ConclusionDecreased expression of P16 and CDH1 and increased expression of LUNX tumor genes were noted at the center of anthracotic lesions. Significant increase in expression of LUNX gene in lung cancer indicates an association between anthracosis and lung cancer, according to which, anthracotic patients may carry a high risk for lung cancer

کلیدواژه ها:

P16 ، CDH1 ، LUNX ، Anthracotic ، Lung Cancer