Whole mitochondrial genome sequencing highlights mitochondrial impact in gastric cancer

Abstract Mitochondria are organelles that perform major roles in cellular operation. Thus, alterations in mitochondrial genome (mtGenome) may lead to mitochondrial dysfunction and cellular deregulation, influencing carcinogenesis. Gastric cancer (GC) is one of the most incident and mortal types of c...

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Autores principales: Giovanna Chaves Cavalcante, Anderson N. R. Marinho, Ana Karyssa Anaissi, Tatiana Vinasco-Sandoval, André Ribeiro-dos-Santos, Amanda Ferreira Vidal, Gilderlanio S. de Araújo, Samia Demachki, Ândrea Ribeiro-dos-Santos
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Publicado: Nature Portfolio 2019
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Acceso en línea:https://doaj.org/article/df2df62ae1ba4182bdb4cf847bb6e43b
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spelling oai:doaj.org-article:df2df62ae1ba4182bdb4cf847bb6e43b2021-12-02T15:08:32ZWhole mitochondrial genome sequencing highlights mitochondrial impact in gastric cancer10.1038/s41598-019-51951-x2045-2322https://doaj.org/article/df2df62ae1ba4182bdb4cf847bb6e43b2019-10-01T00:00:00Zhttps://doi.org/10.1038/s41598-019-51951-xhttps://doaj.org/toc/2045-2322Abstract Mitochondria are organelles that perform major roles in cellular operation. Thus, alterations in mitochondrial genome (mtGenome) may lead to mitochondrial dysfunction and cellular deregulation, influencing carcinogenesis. Gastric cancer (GC) is one of the most incident and mortal types of cancer in Brazil, particularly in the Amazon region. Here, we sequenced and compared the whole mtGenome extracted from FFPE tissue samples of GC patients (tumor and internal control – IC) and cancer-free individuals (external control – EC) from this region. We found 3-fold more variants and up to 9-fold more heteroplasmic regions in tumor when compared to paired IC samples. Moreover, tumor presented more heteroplasmic variants when compared to EC, while IC and EC showed no significant difference when compared to each other. Tumor also presented substantially more variants in the following regions: MT-RNR1, MT-ND5, MT-ND4, MT-ND2, MT-DLOOP1 and MT-CO1. In addition, our haplogroup results indicate an association of Native American ancestry (particularly haplogroup C) to gastric cancer development. To the best of our knowledge, this is the first study to sequence the whole mtGenome from FFPE samples and to apply mtGenome analysis in association to GC in Brazil.Giovanna Chaves CavalcanteAnderson N. R. MarinhoAna Karyssa AnaissiTatiana Vinasco-SandovalAndré Ribeiro-dos-SantosAmanda Ferreira VidalGilderlanio S. de AraújoSamia DemachkiÂndrea Ribeiro-dos-SantosNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 9, Iss 1, Pp 1-13 (2019)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Giovanna Chaves Cavalcante
Anderson N. R. Marinho
Ana Karyssa Anaissi
Tatiana Vinasco-Sandoval
André Ribeiro-dos-Santos
Amanda Ferreira Vidal
Gilderlanio S. de Araújo
Samia Demachki
Ândrea Ribeiro-dos-Santos
Whole mitochondrial genome sequencing highlights mitochondrial impact in gastric cancer
description Abstract Mitochondria are organelles that perform major roles in cellular operation. Thus, alterations in mitochondrial genome (mtGenome) may lead to mitochondrial dysfunction and cellular deregulation, influencing carcinogenesis. Gastric cancer (GC) is one of the most incident and mortal types of cancer in Brazil, particularly in the Amazon region. Here, we sequenced and compared the whole mtGenome extracted from FFPE tissue samples of GC patients (tumor and internal control – IC) and cancer-free individuals (external control – EC) from this region. We found 3-fold more variants and up to 9-fold more heteroplasmic regions in tumor when compared to paired IC samples. Moreover, tumor presented more heteroplasmic variants when compared to EC, while IC and EC showed no significant difference when compared to each other. Tumor also presented substantially more variants in the following regions: MT-RNR1, MT-ND5, MT-ND4, MT-ND2, MT-DLOOP1 and MT-CO1. In addition, our haplogroup results indicate an association of Native American ancestry (particularly haplogroup C) to gastric cancer development. To the best of our knowledge, this is the first study to sequence the whole mtGenome from FFPE samples and to apply mtGenome analysis in association to GC in Brazil.
format article
author Giovanna Chaves Cavalcante
Anderson N. R. Marinho
Ana Karyssa Anaissi
Tatiana Vinasco-Sandoval
André Ribeiro-dos-Santos
Amanda Ferreira Vidal
Gilderlanio S. de Araújo
Samia Demachki
Ândrea Ribeiro-dos-Santos
author_facet Giovanna Chaves Cavalcante
Anderson N. R. Marinho
Ana Karyssa Anaissi
Tatiana Vinasco-Sandoval
André Ribeiro-dos-Santos
Amanda Ferreira Vidal
Gilderlanio S. de Araújo
Samia Demachki
Ândrea Ribeiro-dos-Santos
author_sort Giovanna Chaves Cavalcante
title Whole mitochondrial genome sequencing highlights mitochondrial impact in gastric cancer
title_short Whole mitochondrial genome sequencing highlights mitochondrial impact in gastric cancer
title_full Whole mitochondrial genome sequencing highlights mitochondrial impact in gastric cancer
title_fullStr Whole mitochondrial genome sequencing highlights mitochondrial impact in gastric cancer
title_full_unstemmed Whole mitochondrial genome sequencing highlights mitochondrial impact in gastric cancer
title_sort whole mitochondrial genome sequencing highlights mitochondrial impact in gastric cancer
publisher Nature Portfolio
publishDate 2019
url https://doaj.org/article/df2df62ae1ba4182bdb4cf847bb6e43b
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