A rare coincidence of different types of driver mutations among uterine leiomyomas (UL)

Mutations of mediator subcomplex 12 (MED12) and of high mobility group protein AT-hook 2 (HMGA2) are driver mutations in uterine leiomyomas (UL) that have not been observed to coexist in one tumor and even rarely coexist in different UL tumors of one patient. Here we describe a patient who underwent...

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Main Authors: Holzmann, Carsten (Author) , Markowski, Dominique Nadine (Author) , Bartnitzke, Sabine (Author) , Koczan, Dirk (Author) , Helmke, Burkhard Maria (Author) , Bullerdiek, Jörn (Author)
Format: Article (Journal)
Language:English
Published: 14 October 2015
In: Molecular cytogenetics
Year: 2015, Volume: 8, Issue: 1
ISSN:1755-8166
DOI:10.1186/s13039-015-0177-9
Online Access:Verlag, Volltext: https://doi.org/10.1186/s13039-015-0177-9
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Author Notes:Carsten Holzmann, Dominique Nadine Markowski, Sabine Bartnitzke, Dirk Koczan, Burkhard Maria Helmke, Jörn Bullerdiek
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Summary:Mutations of mediator subcomplex 12 (MED12) and of high mobility group protein AT-hook 2 (HMGA2) are driver mutations in uterine leiomyomas (UL) that have not been observed to coexist in one tumor and even rarely coexist in different UL tumors of one patient. Here we describe a patient who underwent hysterectomy because of multiple leiomyomas which were studied by cytogenetics, MED12 hotspot sequencing, and copy number variation arrays. Two of the UL tumors had different HMGA2 rearrangements not detected by G-banding. Two UL tumors had deletions of the long arm of chromosome 3, in one case associated with a MED12 mutation. Both deletions lead to the loss of MED12L showing strong similarity with MED12. It remains to be determined if this gene can play a role in leiomyomagenesis independent of MED12. In summary, the patient presented exhibits an unusual coincidence of different driver mutations among her leiomyomas.
Item Description:Gesehen am 08.09.2020
Physical Description:Online Resource
ISSN:1755-8166
DOI:10.1186/s13039-015-0177-9