#103 Epigenetic silencing of MLH1 as a prognostic factor for endometrial cancer recurrence Article Swipe
Irina Tripac
,
Valentina Stratan
,
Tutuianu Valeriu
,
Victor Sîtnic
,
Calleja Agius Jean
,
Vasileva-Slaveva Mariela
,
Paul Kubelac
,
Cătălin Vlad
,
Klejda Harasani
,
Bucinskii Vladimir
,
Nino D. Japaridze
·
YOU?
·
· 2023
· Open Access
·
· DOI: https://doi.org/10.1136/ijgc-2023-esgo.272
YOU?
·
· 2023
· Open Access
·
· DOI: https://doi.org/10.1136/ijgc-2023-esgo.272
Introduction/Background Aberrant DNA methylation is a common phenomenon in different types of cancer, but its patterns, causes, and consequences are poorly defined. Promoter hypermethylation of the DNA mismatch repair (MLH1) has been implicated in prognosis of endometrial cancer (EC). Methodology Fifty women diagnosed with endometrioid-type endometrial adenocarcinoma from 2018–2021 at the Institute of Oncology of Moldova were included in this study. DNA was isolated from plasma, formalin-fixed, paraffin-embedded tumor. The methylation status of the MLH1 gene was determined using the Methylation specific Polymerase Chain Reaction (MS-PCR) method and specific primers for both unmethylated and methylated fragments. (figure 1). Results Clinical and pathological characteristics for the 50 endometrial cancer patients are summarized in table 1. The mean age of the cohort was 59,9 ± 0,64 years (range, 39–87), and most of the patients had early stage (Stage I or II), grade 2 tumors with less than 50% myometrial invasion. The mean tumor size was 4,2 cm and the mean depth of invasion 0,5cm. Myometrial lymphatic/vascular space and perineural invasion was present in nearly half the tumors and was much more common in stage II cases. Overall, 80% of the patients with EC had intact tumors, while 20% had hypermethylation of MLH1 (table 2). The presence of MLH1 epimutation was observed in 22.0% of EC patients in stage I and only in 2 patients in stage II. Conclusion Recent developments in the field of epigenetics, especially studies of DNA methylation, have provided valuable insights for understanding the role of epigenetic alterations in normal cellular processes and abnormal changes leading to endometrial carcinogenesis. Promoter hypermethylation of MLH1 displayed a direct correlation with increasing age, poor differentiation of tumor, presence of myometral and limphovascular invasion. These phenotypes may underlie the different developmental pathways that are known to occur in endometrial cancer.
Related Topics
Concepts
MLH1
Endometrial cancer
Epigenetics
DNA methylation
Cancer
Oncology
Stage (stratigraphy)
Cancer research
Internal medicine
Biology
Methylation
Medicine
DNA mismatch repair
Gene
Colorectal cancer
Genetics
Gene expression
Paleontology
Metadata
- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.1136/ijgc-2023-esgo.272
- https://ijgc.bmj.com/content/ijgc/33/Suppl_3/A131.2.full.pdf
- OA Status
- gold
- Cited By
- 1
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W4387135695
All OpenAlex metadata
Raw OpenAlex JSON
- OpenAlex ID
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https://openalex.org/W4387135695Canonical identifier for this work in OpenAlex
- DOI
-
https://doi.org/10.1136/ijgc-2023-esgo.272Digital Object Identifier
- Title
-
#103 Epigenetic silencing of MLH1 as a prognostic factor for endometrial cancer recurrenceWork title
- Type
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articleOpenAlex work type
- Language
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enPrimary language
- Publication year
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2023Year of publication
- Publication date
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2023-09-01Full publication date if available
- Authors
-
Irina Tripac, Valentina Stratan, Tutuianu Valeriu, Victor Sîtnic, Calleja Agius Jean, Vasileva-Slaveva Mariela, Paul Kubelac, Cătălin Vlad, Klejda Harasani, Bucinskii Vladimir, Nino D. JaparidzeList of authors in order
- Landing page
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https://doi.org/10.1136/ijgc-2023-esgo.272Publisher landing page
- PDF URL
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https://ijgc.bmj.com/content/ijgc/33/Suppl_3/A131.2.full.pdfDirect link to full text PDF
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YesWhether a free full text is available
- OA status
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goldOpen access status per OpenAlex
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https://ijgc.bmj.com/content/ijgc/33/Suppl_3/A131.2.full.pdfDirect OA link when available
- Concepts
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MLH1, Endometrial cancer, Epigenetics, DNA methylation, Cancer, Oncology, Stage (stratigraphy), Cancer research, Internal medicine, Biology, Methylation, Medicine, DNA mismatch repair, Gene, Colorectal cancer, Genetics, Gene expression, PaleontologyTop concepts (fields/topics) attached by OpenAlex
- Cited by
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1Total citation count in OpenAlex
- Citations by year (recent)
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2024: 1Per-year citation counts (last 5 years)
- Related works (count)
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10Other works algorithmically related by OpenAlex
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