alexa Adenocarcinoma in situ of the cervix: significance of cone biopsy margins.
Reproductive Medicine

Reproductive Medicine

Gynecology & Obstetrics

Author(s): Wolf JK, Levenback C, Malpica A, Morris M, Burke T, Mitchell MF

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OBJECTIVE: To evaluate the treatment and outcome of patients with adenocarcinoma in situ of the cervix, with special emphasis on cone biopsy margins.

METHODS: Sixty-one women with adenocarcinoma in situ of the cervix treated between April 1984 and December 1993 were identified. Medical records and histologic material were reviewed. Mixed lesions with both adenocarcinoma in situ and squamous cervical intraepithelial neoplasia (CIN) were included.

RESULTS: The mean age of the patients was 35.9 years. Fifty-five of the 61 (90%) patients had cone biopsies, and 44 of these 55 (80%) subsequently had hysterectomies. Eight women (13%) had associated invasive cancer. Among 50 patients in whom the status of the margins was confirmed, 23 (46%) had positive margins and 27 (54%) had negative margins. Of 23 women with positive margins, 19 had hysterectomies and ten of the 19 (53%) had residual disease in the uterus. Of 27 patients with negative cone margins, 21 had hysterectomies, and seven of the 21 (33%) had residual disease in the uterus. Two women with negative margins who did not have hysterectomies developed recurrent disease. Fifty-five of the total series of 61 patients followed-up for a median of 57 months (range 17-132) had no evidence of disease at last follow-up.

CONCLUSION: Women with adenocarcinoma in situ of the cervix often have residual disease in the uterus, regardless of whether the margins on cone biopsy are positive or negative.

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This article was published in Obstet Gynecol. and referenced in Gynecology & Obstetrics

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  • Yosef Yarden
    Classically, the 3’untranslated region (3’UTR) is that region in eukaryotic protein-coding genes from the translation termination codon to the polyA signal. It is transcribed as an integral part of the mRNA encoded by the gene. However, there exists another kind of RNA, which consists of the 3’UTR alone, without all other elements in mRNA such as 5’UTR and coding region. The importance of independent 3’UTR RNA (referred as I3’UTR) was prompted by results of artificially introducing such RNA species into malignant mammalian cells. Since 1991, we found that the middle part of the 3’UTR of the human nuclear factor for interleukin-6 (NF-IL6) or C/EBP gene exerted tumor suppression effect in vivo. Our subsequent studies showed that transfection of C/EBP 3’UTR led to down-regulation of several genes favorable for malignancy and to up-regulation of some genes favorable for phenotypic reversion. Also, it was shown that the sequences near the termini of the C/EBP 3’UTR were important for its tumor suppression activity. Then, the C/EBP 3’UTR was found to directly inhibit the phosphorylation activity of protein kinase CPKC in SMMC-7721, a hepatocarcinoma cell line. Recently, an AU-rich region in the C/EBP 3’UTR was found also to be responsible for its tumor suppression. Recently we have also found evidence that the independent C/EBP 3’UTR RNA is actually exists in human tissues, such as fetal liver and heart, pregnant uterus, senescent fibroblasts etc. Through 1990’s to 2000’s, world scientists found several 3’UTR RNAs that functioned as artificial independent RNAs in cancer cells and resulted in tumor suppression. Interestingly, majority of genes for these RNAs have promoter-like structures in their 3’UTR regions, although the existence of their transcribed products as independent 3’UTR RNAs is still to be confirmed. Our studies indicate that the independent 3’UTR RNA is a novel non-coding RNA species whose function should be the regulation not of the expression of their original mRNA, but of some essential life activities of the cell as a whole.
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