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| Verfasst von: | Helderman, Noah [VerfasserIn]  |
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| | Andini, Katarina [VerfasserIn] |
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| | van Leerdam, Monique E. [VerfasserIn] |
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| | van Hest, Liselotte P. [VerfasserIn] |
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| | Hoekman, Daniël R. [VerfasserIn] |
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| | Ahadova, Aysel [VerfasserIn] |
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| | Bajwa-ten Broeke, Sanne W. [VerfasserIn] |
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| | Bosse, Tjalling [VerfasserIn] |
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| | van der Logt, Elise M. J. [VerfasserIn] |
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| | Imhann, Floris [VerfasserIn] |
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| | Kloor, Matthias [VerfasserIn] |
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| | Langers, Alexandra M. J. [VerfasserIn] |
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| | Smit, Vincent T. H. B. M. [VerfasserIn] |
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| | Terlouw, Diantha [VerfasserIn] |
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| | van Wezel, Tom [VerfasserIn] |
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| | Morreau, Hans [VerfasserIn] |
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| | Nielsen, Maartje [VerfasserIn] |
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| Titel: | MLH1 Promotor Hypermethylation in Colorectal and Endometrial Carcinomas from Patients with Lynch Syndrome |
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| Verf.angabe: | Noah C. Helderman, Katarina D. Andini, Monique E. van Leerdam, Liselotte P. van Hest, Daniël R. Hoekman, Aysel Ahadova, Sanne W. Bajwa-ten Broeke, Tjalling Bosse, Elise M.J. van der Logt, Floris Imhann, Matthias Kloor, Alexandra M.J. Langers, Vincent T.H.B.M. Smit, Diantha Terlouw, Tom van Wezel, Hans Morreau, and Maartje Nielsen |
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| E-Jahr: | 2024 |
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| Jahr: | February 2024 |
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| Umfang: | 9 S. |
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| Illustrationen: | Illustrationen |
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| Fussnoten: | Online verfügbar: 5. Dezember 2023, Artikelversion: 22. Januar 2024 ; Gesehen am 06.08.2024 |
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| Titel Quelle: | Enthalten in: The journal of molecular diagnostics |
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| Ort Quelle: | Amsterdam [u.a.] : Elsevier, 1999 |
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| Jahr Quelle: | 2024 |
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| Band/Heft Quelle: | 26(2024), 2 vom: Feb., Seite 106-114 |
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| ISSN Quelle: | 1943-7811 |
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| Abstract: | Screening for Lynch syndrome (LS) in colorectal cancer (CRC) and endometrial cancer patients generally involves immunohistochemical staining of the mismatch repair (MMR) proteins. In case of MLH1 protein loss, MLH1 promotor hypermethylation (MLH1-PM) testing is performed to indirectly distinguish the constitutional MLH1 variants from somatic epimutations. Recently, multiple studies have reported that MLH1-PM and pathogenic constitutional MMR variants are not mutually exclusive. This study describes 6 new and 86 previously reported MLH1-PM CRCs or endometrial cancers in LS patients. Of these, methylation of the MLH1 gene promotor C region was reported in 30 MLH1, 6 MSH2, 6 MSH6, and 3 PMS2 variant carriers at a median age at diagnosis of 48.5 years [interquartile range (IQR), 39-56.75 years], 39 years (IQR, 29-51 years), 58 years (IQR, 53.5-67 years), and 68 years (IQR, 65.6-68.5 years), respectively. For 31 MLH1-PM CRCs in LS patients from the literature, only the B region of the MLH1 gene promotor was tested, whereas for 13 cases in the literature the tested region was not specified. Collectively, these data indicate that a diagnosis of LS should not be excluded when MLH1-PM is detected. Clinicians should carefully consider whether follow-up genetic MMR gene testing should be offered, with age <60 to 70 years and/or a positive family history among other factors being suggestive for a potential constitutional MMR gene defect. |
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| DOI: | doi:10.1016/j.jmoldx.2023.10.005 |
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| URL: | Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.
kostenfrei: Volltext: https://doi.org/10.1016/j.jmoldx.2023.10.005 |
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| | kostenfrei: Volltext: https://www.sciencedirect.com/science/article/pii/S1525157823002891 |
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| | DOI: https://doi.org/10.1016/j.jmoldx.2023.10.005 |
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| Datenträger: | Online-Ressource |
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| Sprache: | eng |
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| K10plus-PPN: | 1897916167 |
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| Verknüpfungen: | → Zeitschrift |
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MLH1 Promotor Hypermethylation in Colorectal and Endometrial Carcinomas from Patients with Lynch Syndrome / Helderman, Noah [VerfasserIn]; February 2024 (Online-Ressource)
