Objective: To investigate the related genes in lung cancer tissues associated with residential high radon exposure. Methods: Differentially expressed gene fragments in lung cancer and normal lung tissues were discovered by differential display and reverse Northern blot hybridization method. The fragments positive in lung cancer and negative in normal lung tissue were determined. Results: Seven differential displayed fragments were sequenced. One of them named NA7 is 95% homologous with AI208667 in EAT of Genbank. Another fragment named NG2 is up to 98% homologous with five fragments. The remained one CA1 may be a new gene fragment. Conclusion: 3 gene fragments were discovered from lung cancer and normal lung tissues of high radon exposure resident.
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