دورية أكاديمية
DNA hypermethylation driven by DNMT1 and DNMT3A favors tumor immune escape contributing to the aggressiveness of adrenocortical carcinoma
| العنوان: | DNA hypermethylation driven by DNMT1 and DNMT3A favors tumor immune escape contributing to the aggressiveness of adrenocortical carcinoma |
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| المؤلفون: | Gwenneg Kerdivel, Floriane Amrouche, Marie-Ange Calmejane, Floriane Carallis, Juliette Hamroune, Constanze Hantel, Jérôme Bertherat, Guillaume Assié, Valentina Boeva |
| المصدر: | Clinical Epigenetics, Vol 15, Iss 1, Pp 1-17 (2023) |
| بيانات النشر: | BMC, 2023. |
| سنة النشر: | 2023 |
| المجموعة: | LCC:Medicine LCC:Genetics |
| مصطلحات موضوعية: | DNA methylation, CIMP, DNA methyltransferases, DNMTs, Demethylating agents, 5-azacytidine, Medicine, Genetics, QH426-470 |
| الوصف: | Abstract Background Adrenocortical carcinoma is rare and aggressive endocrine cancer of the adrenal gland. Within adrenocortical carcinoma, a recently described subtype characterized by a CpG island methylator phenotype (CIMP) has been associated with an especially poor prognosis. However, the drivers of CIMP remain unknown. Furthermore, the functional relation between CIMP and poor clinical outcomes of patients with adrenocortical carcinoma stays elusive. Results Here, we show that CIMP in adrenocortical carcinoma is linked to the increased expression of DNA methyltransferases DNMT1 and DNMT3A driven by a gain of gene copy number and cell hyperproliferation. Importantly, we demonstrate that CIMP contributes to tumor aggressiveness by favoring tumor immune escape. This effect could be at least partially reversed by treatment with the demethylating agent 5-azacytidine. Conclusions In sum, our findings suggest that co-treatment with demethylating agents might enhance the efficacy of immunotherapy and could represent a novel therapeutic approach for patients with high CIMP adrenocortical carcinoma. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1868-7083 |
| العلاقة: | https://doaj.org/toc/1868-7083Test |
| DOI: | 10.1186/s13148-023-01534-5 |
| الوصول الحر: | https://doaj.org/article/c76717b318a742faa83e043eb3df2200Test |
| رقم الانضمام: | edsdoj.76717b318a742faa83e043eb3df2200 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 18687083 |
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| DOI: | 10.1186/s13148-023-01534-5 |