학술논문
TP53 variants in p53 signatures and the clonality of STICs in RRSO samples
Document Type
Article
Author
Source
(2022): 1-13.
Subject
Language
Korean
ISSN
20050380
Abstract
Objective: Precursor lesions may be identified in fallopian tube tissue after risk-reducing salpingo-oophorectomy (RRSO) in patients with pathogenic variants of . Serous tubal intraepithelial carcinoma (STIC) is considered a precursor of high-grade serous carcinoma, whereas the significance of the p53 signature remains unclear. In this study, we investigated the relationship between the p53 signature and the risk of ovarian cancer. Methods: We analyzed the clinicopathological findings and conducted DNA sequencing for variants of p53 signatures and STIC lesions isolated using laser capture microdissectionin 13 patients with pathogenic variants of who underwent RRSO and 17 control patients with the benign gynecologic disease. Results: pathogenic variants were detected significantly higher in RRSO group than control (p<0.001). No difference in the frequency of p53 signatures were observed between groups (53.8% vs 29.4%; p=0.17). sequencing and next-generation sequencing analysis in a patient with STIC and occult cancer revealed 2 mutations causing different p53 staining for STICs and another mutation shared between STIC and occult cancer. Conclusion: The sequence analysis for revealed 2 types of p53 signatures, one with a risk of progression to STIC and ovarian cancer with pathological variants in and the other with a low risk of progression without pathological variants in as seen in control.
Objective: Precursor lesions may be identified in fallopian tube tissue after risk-reducing salpingo-oophorectomy (RRSO) in patients with pathogenic variants of . Serous tubal intraepithelial carcinoma (STIC) is considered a precursor of high-grade serous carcinoma, whereas the significance of the p53 signature remains unclear. In this study, we investigated the relationship between the p53 signature and the risk of ovarian cancer. Methods: We analyzed the clinicopathological findings and conducted DNA sequencing for variants of p53 signatures and STIC lesions isolated using laser capture microdissectionin 13 patients with pathogenic variants of who underwent RRSO and 17 control patients with the benign gynecologic disease. Results: pathogenic variants were detected significantly higher in RRSO group than control (p<0.001). No difference in the frequency of p53 signatures were observed between groups (53.8% vs 29.4%; p=0.17). sequencing and next-generation sequencing analysis in a patient with STIC and occult cancer revealed 2 mutations causing different p53 staining for STICs and another mutation shared between STIC and occult cancer. Conclusion: The sequence analysis for revealed 2 types of p53 signatures, one with a risk of progression to STIC and ovarian cancer with pathological variants in and the other with a low risk of progression without pathological variants in as seen in control.
Objective: Precursor lesions may be identified in fallopian tube tissue after risk-reducing salpingo-oophorectomy (RRSO) in patients with pathogenic variants of . Serous tubal intraepithelial carcinoma (STIC) is considered a precursor of high-grade serous carcinoma, whereas the significance of the p53 signature remains unclear. In this study, we investigated the relationship between the p53 signature and the risk of ovarian cancer. Methods: We analyzed the clinicopathological findings and conducted DNA sequencing for variants of p53 signatures and STIC lesions isolated using laser capture microdissectionin 13 patients with pathogenic variants of who underwent RRSO and 17 control patients with the benign gynecologic disease. Results: pathogenic variants were detected significantly higher in RRSO group than control (p<0.001). No difference in the frequency of p53 signatures were observed between groups (53.8% vs 29.4%; p=0.17). sequencing and next-generation sequencing analysis in a patient with STIC and occult cancer revealed 2 mutations causing different p53 staining for STICs and another mutation shared between STIC and occult cancer. Conclusion: The sequence analysis for revealed 2 types of p53 signatures, one with a risk of progression to STIC and ovarian cancer with pathological variants in and the other with a low risk of progression without pathological variants in as seen in control.