Alterations in the cellular genome affecting the expression or function of genes controlling cell growth and differentiation are considered to be the main cause of cancer. Genes that cause cancer are of two distinct types: oncogenes and onco-suppressor genes. The normal proto-oncogene can be converted into an active oncogene by deletion or point mutation in its coding sequence, gene amplification, and by specific chromosome rearrangements. Mutations and abnormal expression in ras, myc, c-erbB-2, and other oncogenes have been reported in several types of gynecological cancer. Onco-suppressor genes are involved in gynecological cancer, their functions are localized in different phases of the cell cycle. Structural changes and deletions of these genes can cause cancer. Mutations in the p53, BRCA1, DCC, and PTEN genes have been reported in gynecological cancers such as ovarian, cervical, and endometrial cancer. Human papillomaviruses are of major interest because specific types (HPV-16, -18, and several others) have been identified as causative agents in at least 90% of cancers of the cervix. In this study we summarize the available information regarding the implication of specific oncogenes, onco-suppressor genes, and HPV in the development of female genital malignancies.
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