Carcinogenesis, Teratogenesis & Mutagenesis ›› 2001, Vol. 13 ›› Issue (1): 20-022.doi: 10.3969/j.issn.1004-616x.2001.01.007

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MICRONUCLEUS FORMATION IN VIVO IN LYMPHOCYTES OF HUMAN PERIPHERAL BLOOD AND INDIVIDUAL SUSCEPTIBILTY TO LUNG CANCER

XUE Kai - xian, XU Lin, MA Kuo - jia, WU Jian - zhong, CHEN Sen - qing.   

  1. Cancer Institute of Jiangsu Province, Nanjing, 210009, China
  • Received:2000-04-10 Revised:2000-06-20 Online:2001-01-30 Published:2001-01-30

Abstract: Purpose : To investigate the association of the in vivo micronucleus formation in lymphocytes of human peripheral blood with lung cancer. Methods : Case - cont rol study included 95 patient s with lung cancer and 90 cont rols. Slides were prepared by the in vivo micronucleus test in capillary blood lymphocytes. Results : Spontaneous and induced by smoking micronucleus f requencies (MNF) in lung cancer patient s ( 0. 87 ‰ and 1. 64 ‰) are significantly higher than those in cont rols(0. 47 ‰and 0. 76 ‰) ( P < 0. 05 and P < 0. 01) . Conclusion : Patient s with lung cancer were susceptible to mutagens ; In this study we confirmed first that the in vivo micronucleus formation in lymphocyte of peripheral blood is an excellent biomarker in assessing individual cancer susceptibility , persons with 1 ‰and 3 ‰of MNF had an increase of 5. 5 - fold and 21. 9 - fold higher relative risk for lung cancer.

Key words: lung cancer, micronucleus, genetic susceptibility

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