Detailed Information on Publication Record
2021
SDHC Methylation Pattern in Patients With Carney Triad
DAUMOVA, Magdalena, Marian SVAJDLER, Pavel FABIAN, Leoš KŘEN, Iva BABANKOVA et. al.Basic information
Original name
SDHC Methylation Pattern in Patients With Carney Triad
Authors
DAUMOVA, Magdalena (203 Czech Republic), Marian SVAJDLER (203 Czech Republic), Pavel FABIAN (203 Czech Republic), Leoš KŘEN (203 Czech Republic, belonging to the institution), Iva BABANKOVA (203 Czech Republic), Marta JEŽOVÁ (203 Czech Republic, belonging to the institution), Monika SEDIVCOVA (203 Czech Republic), Tomas VANECEK (203 Czech Republic), Kristyna BEHENSKA (203 Czech Republic), Michal MICHAL (203 Czech Republic) and Ondrej DAUM (203 Czech Republic, guarantor)
Edition
APPLIED IMMUNOHISTOCHEMISTRY & MOLECULAR MORPHOLOGY, PHILADELPHIA, LIPPINCOTT WILLIAMS & WILKINS, 2021, 1541-2016
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
30109 Pathology
Country of publisher
United States of America
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
Impact factor
Impact factor: 1.992
RIV identification code
RIV/00216224:14110/21:00124184
Organization unit
Faculty of Medicine
UT WoS
000696558400009
Keywords in English
Carney triad; somatic mosaicism; SDHC; methylation
Tags
International impact, Reviewed
Změněno: 16/2/2022 10:39, Mgr. Tereza Miškechová
Abstract
V originále
Carney triad is a multitumor syndrome affecting almost exclusively young women in a nonfamilial setting, which manifests by multifocal gastric gastrointestinal stromal tumors, paragangliomas, and pulmonary chondroma. The Carney triad-associated tumors are characterized by a deficiency of the mitochondrial succinate dehydrogenase enzymatic complex. Recently, it has been observed that the deficiency results from epigenetic silencing of the SDHC gene by its promoter hypermethylation. To elucidate anatomic distribution of SDHC promoter methylation in Carney triad patients and thus to shed some light on the possible natural development of this epigenetic change, both neoplastic and available non-neoplastic tissues of 3 patients with Carney triad were tested for hypermethylation at the SDHC promoter site. SDHC promoter hypermethylation was proven in all tumors studied. Lack of SDHC epigenetic silencing in the non-neoplastic lymphoid and duodenal tissue (ie, tissues not involved in the development of Carney triad-associated tumors) together with the finding of SDHC promoter hypermethylation in the non-neoplastic gastric wall favors the hypothesis of postzygotic somatic mosaicism as the biological background of Carney triad; it also offers an explanation of the multifocality of gastrointestinal stromal tumors of the stomach occurring in this scenario as well. However, the precise mechanism responsible for the peculiar organ-specific distribution of Carney triad-associated tumors is still unknown.