ESTABLISHMENT OF THE FIBROBLAST CELL LINE IN THE XERODERMA PIGMENTOSUM PATIENT AND A STUDY OF ITS BIOLOGICAL CHARACTERISTICS / 第二军医大学学报

ABSTRACT

Xeroderma pigmentosum (XP; is an inborn autosomal recessive inheritance disease with DNA repair deficiency. XP has become an ideal experimental model to study human DNA repair system and the mechanism of cancer. XP 4SH cell line in this report was obtained from the skin tissue of XP patients. After cell culture, XP 4SH cell line showed the characteristics of form and growth of fibroblast cell. The number of its chromosome was 46(2n = 46).Its aberration was characterised by dicchro-mosomes appearing in XP cells. XP cells induced by UV showed that the frequency of SCE increased significantly while the level of UDS decreased. Gene complement analysis by cell fusion suggests that XP 4SH cell line belongs to the complementation group A.