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Transfection of Sponge Cells and Intracellular Localization of Cancer-Related MYC, RRAS2, and DRG1 Proteins

Dominko, Kristina; Talajić, Antea; Radić, Martina; Škrobot Vidaček, Nikolina; Vlahoviček, Kristian; Herak Bosnar, Maja; Ćetković, Helena (2023) Transfection of Sponge Cells and Intracellular Localization of Cancer-Related MYC, RRAS2, and DRG1 Proteins. Marine drugs, 21 (2). ISSN 1660-3397

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The determination of the protein’s intracellular localization is essential for understanding its biological function. Protein localization studies are mainly performed on primary and secondary vertebrate cell lines for which most protocols have been optimized. In spite of experimental difficulties, studies on invertebrate cells, including basal Metazoa, have greatly advanced. In recent years, the interest in studying human diseases from an evolutionary perspective has significantly increased. Sponges, placed at the base of the animal tree, are simple animals without true tissues and organs but with a complex genome containing many genes whose human homologs have been implicated in human diseases, including cancer. Therefore, sponges are an innovative model for elucidating the fundamental role of the proteins involved in cancer. In this study, we overexpressed human cancer-related proteins and their sponge homologs in human cancer cells, human fibroblasts, and sponge cells. We demonstrated that human and sponge MYC proteins localize in the nucleus, the RRAS2 in the plasma membrane, the membranes of the endolysosomal vesicles, and the DRG1 in the cell’s cytosol. Despite the very low transfection efficiency of sponge cells, we observed an identical localization of human proteins and their sponge homologs, indicating their similar cellular functions.

Item Type: Article
Uncontrolled Keywords: Porifera ; transfection ; DRG1 ; MYC ; RRAS2 ; primary sponge cells ; intracellular localization
Subjects: NATURAL SCIENCES > Biology
Divisions: Division of Molecular Biology
Division of Molecular Medicine
Project titleProject leaderProject codeProject type
Geni spužvi povezani s nastankom rakaĆetković, HelenaIP-2019-04-5382HRZZ
Depositing User: Maja Herak Bosnar
Date Deposited: 12 Apr 2023 13:23
DOI: 10.3390/md21020119

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