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Ribera, Jordi; Portolés, Irene; Córdoba-Jover, Bernat; Rodríguez-Vita, Juan; Casals, Gregori; González-de la Presa, Bernardino; Graupera, Mariona; Solsona-Vilarrasa, Estel; Garcia-Ruiz, Carmen; Fernández-Checa, José C; Soria, Guadalupe; Tudela, Raúl; Esteve-Codina, Anna; Espadas, Guadalupe; Sabidó, Eduard; Jiménez, Wladimiro; Sessa, William C; Morales-Ruiz, Manuel
Communications biology, 10/2021, Letnik: 4, Številka: 1Journal Article
DHX15 is a downstream substrate for Akt1, which is involved in key cellular processes affecting vascular biology. Here, we explored the vascular regulatory function of DHX15. Homozygous DHX15 gene deficiency was lethal in mouse and zebrafish embryos. DHX15 zebrafish also showed downregulation of VEGF-C and reduced formation of lymphatic structures during development. DHX15 mice depicted lower vascular density and impaired lymphatic function postnatally. RNAseq and proteome analysis of DHX15 silenced endothelial cells revealed differential expression of genes involved in the metabolism of ATP biosynthesis. The validation of these results demonstrated a lower activity of the Complex I in the mitochondrial membrane of endothelial cells, resulting in lower intracellular ATP production and lower oxygen consumption. After injection of syngeneic LLC1 tumor cells, DHX15 mice showed partially inhibited primary tumor growth and reduced lung metastasis. Our results revealed an important role of DHX15 in vascular physiology and pave a new way to explore its potential use as a therapeutical target for metastasis treatment.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Povezave do osebnih bibliografij avtorjev | Povezave do podatkov o raziskovalcih v sistemu SICRIS |
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Vir: Osebne bibliografije
in: SICRIS
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