Kabiri, Y.* ; Fuhrmann, A. ; Becker, A. ; Jedermann, L. ; Eberhagen, C. ; König, A. ; Silva, T.B.* ; Borges, F.* ; Hauck, S.M. ; Michalke, B. ; Knolle, P.* ; Zischka, H.
Mitochondrial impairment by MitobloCK-6 inhibits liver cancer cell proliferation.
Front. Cell Dev. Biol. 9:725474 (2021)
Augmenter of liver regeneration (ALR) is a critical multi-isoform protein with its longer isoform, located in the mitochondrial intermembrane space, being part of the mitochondrial disulfide relay system (DRS). Upregulation of ALR was observed in multiple forms of cancer, among them hepatocellular carcinoma (HCC). To shed light into ALR function in HCC, we used MitoBloCK-6 to pharmacologically inhibit ALR, resulting in profound mitochondrial impairment and cancer cell proliferation deficits. These effects were mostly reversed by supplementation with bioavailable hemin b, linking ALR function to mitochondrial iron homeostasis. Since many tumor cells are known for their increased iron demand and since increased iron levels in cancer are associated with poor clinical outcome, these results help to further advance the intricate relation between iron and mitochondrial homeostasis in liver cancer.
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Publication type
Article: Journal article
Document type
Scientific Article
Thesis type
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Keywords
Mitochondria ; Hcc ; Disulfide Relay System ; Iron ; Heme; Sulfhydryl Oxidase; Intermembrane Space; Protein; Expression; Iron; Regeneration; Metabolism; Maturation; Sorafenib; Induction
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Language
english
Publication Year
2021
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2021
ISSN (print) / ISBN
2296-634X
e-ISSN
2296-634X
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Volume: 9,
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Article Number: 725474
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Frontiers
Publishing Place
Lausanne
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Peer reviewed
POF-Topic(s)
30203 - Molecular Targets and Therapies
30202 - Environmental Health
Research field(s)
Enabling and Novel Technologies
Genetics and Epidemiology
Environmental Sciences
PSP Element(s)
G-505200-003
G-505200-001
G-505300-001
G-505700-001
G-504800-002
Grants
FEDER/COMPETE
Foundation for Science and Technology (FCT)
European Unions Horizon 2020 Research and Innovation programme under the Marie Sklodowska-Curie Grant
Copyright
Erfassungsdatum
2021-10-18