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Paz-Barba M, Muñoz Garcia A, de Winter TJJ, de Graaf N, van Agen M, van der Sar E, Lambregtse F, Daleman L, van der Slik A, Zaldumbide A, de Koning EJP, Carlotti F. Apolipoprotein L genes are novel mediators of inflammation in beta cells. Diabetologia 2024; 67:124-136. [PMID: 37924378 PMCID: PMC10709252 DOI: 10.1007/s00125-023-06033-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Accepted: 08/22/2023] [Indexed: 11/06/2023]
Abstract
AIMS/HYPOTHESIS Inflammation induces beta cell dysfunction and demise but underlying molecular mechanisms remain unclear. The apolipoprotein L (APOL) family of genes has been associated with innate immunity and apoptosis in non-pancreatic cell types, but also with metabolic syndrome and type 2 diabetes mellitus. Here, we hypothesised that APOL genes play a role in inflammation-induced beta cell damage. METHODS We used single-cell transcriptomics datasets of primary human pancreatic islet cells to study the expression of APOL genes upon specific stress conditions. Validation of the findings was carried out in EndoC-βH1 cells and primary human islets. Finally, we performed loss- and gain-of-function experiments to investigate the role of APOL genes in beta cells. RESULTS APOL genes are expressed in primary human beta cells and APOL1, 2 and 6 are strongly upregulated upon inflammation via the Janus kinase (JAK)-signal transducer and activator of transcription (STAT) pathway. APOL1 overexpression increases endoplasmic reticulum stress while APOL1 knockdown prevents cytokine-induced beta cell death and interferon-associated response. Furthermore, we found that APOL genes are upregulated in beta cells from donors with type 2 diabetes compared with donors without diabetes mellitus. CONCLUSIONS/INTERPRETATION APOLs are novel regulators of islet inflammation and may contribute to beta cell damage during the development of diabetes. DATA AVAILABILITY scRNAseq data generated by our laboratory and used in this study are available in the Gene Expression Omnibus (GEO; www.ncbi.nlm.nih.gov/geo/ ), accession number GSE218316.
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Affiliation(s)
- Miriam Paz-Barba
- Department of Internal Medicine, Leiden University Medical Center, Leiden, the Netherlands
| | - Amadeo Muñoz Garcia
- Department of Internal Medicine, Leiden University Medical Center, Leiden, the Netherlands
| | - Twan J J de Winter
- Department of Internal Medicine, Leiden University Medical Center, Leiden, the Netherlands
| | - Natascha de Graaf
- Department of Internal Medicine, Leiden University Medical Center, Leiden, the Netherlands
| | - Maarten van Agen
- Department of Internal Medicine, Leiden University Medical Center, Leiden, the Netherlands
| | - Elisa van der Sar
- Department of Internal Medicine, Leiden University Medical Center, Leiden, the Netherlands
| | - Ferdy Lambregtse
- Department of Internal Medicine, Leiden University Medical Center, Leiden, the Netherlands
| | - Lizanne Daleman
- Department of Internal Medicine, Leiden University Medical Center, Leiden, the Netherlands
| | - Arno van der Slik
- Department of Cell and Chemical Biology, Leiden University Medical Center, Leiden, the Netherlands
| | - Arnaud Zaldumbide
- Department of Cell and Chemical Biology, Leiden University Medical Center, Leiden, the Netherlands
| | - Eelco J P de Koning
- Department of Internal Medicine, Leiden University Medical Center, Leiden, the Netherlands
| | - Françoise Carlotti
- Department of Internal Medicine, Leiden University Medical Center, Leiden, the Netherlands.
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Alladagbin DJ, da Silva CGR, Silva LK, Dos-Santos WL, de Sá Oliveira GG. APOL1 genotyping via buccal mucosa cell samples to establish risk of kidney disease. BMC Nephrol 2022; 23:329. [PMID: 36217118 PMCID: PMC9549854 DOI: 10.1186/s12882-022-02954-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 08/18/2022] [Accepted: 09/19/2022] [Indexed: 11/26/2022] Open
Abstract
Two alleles (G1 and G2) of the apolipoprotein 1 gene (APOL1) predispose people of African descent to developing or accelerating the course of certain types of kidney disease. Population studies to determine the frequency of the G1 and G2 alleles are important to inform resource allocation by public health authorities. Traditionally, APOL1 genotyping is carried out in blood samples. However, sample collection, transport, and storage is cumbersome. Here we compared APOL1 genotyping in blood and buccal mucosa cell samples obtained from 23 individuals. Alleles G0 (wild), G1, and G2, as well as genotypes G0/G0, G0/G1, G1/G1, G0/G2, G1/G2, and G2/G2 were detected using both blood and buccal mucosa cells with 100% coincidence. Our data indicate that buccal mucosa cell samples may represent a suitable alternative to blood samples for APOL1 genotyping in the field.
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Affiliation(s)
- Dona Jeanne Alladagbin
- Fundação Oswaldo Cruz, Laboratory of Molecular and Strutural Pathology (LAPEM), Gonçalo Moniz Institute, FIOCRUZ-BA, Rua Waldemar Falcão, no. 121, CEP 40.296-710, Salvador, Brazil
| | - Carlos Gustavo Regis da Silva
- Fundação Oswaldo Cruz, Laboratory of Molecular and Strutural Pathology (LAPEM), Gonçalo Moniz Institute, FIOCRUZ-BA, Rua Waldemar Falcão, no. 121, CEP 40.296-710, Salvador, Brazil
| | - Luciano Kalabric Silva
- Fundação Oswaldo Cruz, Laboratory of Molecular and Strutural Pathology (LAPEM), Gonçalo Moniz Institute, FIOCRUZ-BA, Rua Waldemar Falcão, no. 121, CEP 40.296-710, Salvador, Brazil
| | - Washington Lc Dos-Santos
- Fundação Oswaldo Cruz, Laboratory of Molecular and Strutural Pathology (LAPEM), Gonçalo Moniz Institute, FIOCRUZ-BA, Rua Waldemar Falcão, no. 121, CEP 40.296-710, Salvador, Brazil
| | - Geraldo Gileno de Sá Oliveira
- Fundação Oswaldo Cruz, Laboratory of Molecular and Strutural Pathology (LAPEM), Gonçalo Moniz Institute, FIOCRUZ-BA, Rua Waldemar Falcão, no. 121, CEP 40.296-710, Salvador, Brazil.
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Khalil A, Poelvoorde P, Fayyad-Kazan M, Rousseau A, Nuyens V, Uzureau S, Biston P, El-Makhour Y, Badran B, Van Antwerpen P, Boudjeltia KZ, Vanhamme L. Apoliporotein L3 interferes with endothelial tube formation via regulation of ERK1/2, FAK and Akt signaling pathway. Atherosclerosis 2018; 279:73-87. [PMID: 30423477 DOI: 10.1016/j.atherosclerosis.2018.10.023] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Revised: 09/25/2018] [Accepted: 10/18/2018] [Indexed: 02/09/2023]
Abstract
BACKGROUND AND AIMS Endothelial cells are main actors in vascular homeostasis as they regulate vascular pressure and permeability as well as hemostasis and inflammation. Disturbed stimuli delivered to and by endothelial cells correlate with the so-called endothelial dysfunction and disrupt this homeostasis. As constituents of the inner layer of blood vessels, endothelial cells are also involved in angiogenesis. Apolipoprotein Ls (APOL) comprise a family of newly discovered apolipoproteins with yet poorly understood function, and are suggested to be involved in inflammatory processes and cell death mechanisms. Here we investigate the role of APOLs in endothelial cells stimulated with factors known to be involved in atherogenesis and their possible contribution to endothelial dysfunction with an emphasis on inflammation driven-angiogenesis in vitro. METHODS Using the CRISPR/Cas9 technique, we analyzed the effect of APOL3 gene knock out in HMEC-1 endothelial cells on cell migration, tubulogenesis, endothelial permeability, intracellular signal transduction as assessed by kinase phosphorylation, and angiogenesis gene expression (measured by qRT-PCR). RESULTS Our results indicate that among the family, APOL3 was the only member induced by myeloperoxidase, oxidized LDL, VEGF and FGF treatments. APOL3 invalidation increased endothelial permeability, reduced wound repair and tubule formation in vitro, the latter only in MPO and VEGF-induced conditions. Accordingly, some pro-angiogenic signaling pathways (ERK1/2 and FAK but not Akt) and some pro-angiogenic genes were partially inhibited in APOL3 knock out cells. CONCLUSIONS These findings suggest the involvement of APOL3 in angiogenesis in vitro and as a modulator of MAPK and FAK signaling in endothelial cells.
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Affiliation(s)
- Alia Khalil
- Laboratory of Experimental Medicine (ULB 222 Unit), CHU de Charleroi, A. Vésale Hospital, Université Libre de Bruxelles, Montigny-le-Tilleul, Belgium; Laboratory of Cancer Biology and Molecular Immunology, Lebanese University, Faculty of Sciences, Hadath-Beirut, Lebanon
| | - Philippe Poelvoorde
- Laboratory of Molecular Biology of Inflammation, IBMM, Faculty of Sciences, Université Libre de Bruxelles, Gosselies, Belgium
| | - Mohammad Fayyad-Kazan
- Laboratory of Molecular Biology of Inflammation, IBMM, Faculty of Sciences, Université Libre de Bruxelles, Gosselies, Belgium
| | - Alexandre Rousseau
- Laboratory of Experimental Medicine (ULB 222 Unit), CHU de Charleroi, A. Vésale Hospital, Université Libre de Bruxelles, Montigny-le-Tilleul, Belgium
| | - Vincent Nuyens
- Laboratory of Experimental Medicine (ULB 222 Unit), CHU de Charleroi, A. Vésale Hospital, Université Libre de Bruxelles, Montigny-le-Tilleul, Belgium
| | - Sophie Uzureau
- Laboratory of Molecular Parasitology, IBMM, Faculty of Sciences, Université Libre de Bruxelles, Gosselies, Belgium
| | - Patrick Biston
- Laboratory of Experimental Medicine (ULB 222 Unit), CHU de Charleroi, A. Vésale Hospital, Université Libre de Bruxelles, Montigny-le-Tilleul, Belgium
| | - Yolla El-Makhour
- Laboratory of Cancer Biology and Molecular Immunology, Lebanese University, Faculty of Sciences, Hadath-Beirut, Lebanon
| | - Bassam Badran
- Laboratory of Cancer Biology and Molecular Immunology, Lebanese University, Faculty of Sciences, Hadath-Beirut, Lebanon
| | - Pierre Van Antwerpen
- Laboratory of Pharmaceutical Chemistry and Analytical Platform of the Faculty of Pharmacy, Faculty of Pharmacy, Université Libre de Bruxelles, Brussels, Belgium
| | - Karim Zouaoui Boudjeltia
- Laboratory of Experimental Medicine (ULB 222 Unit), CHU de Charleroi, A. Vésale Hospital, Université Libre de Bruxelles, Montigny-le-Tilleul, Belgium
| | - Luc Vanhamme
- Laboratory of Molecular Biology of Inflammation, IBMM, Faculty of Sciences, Université Libre de Bruxelles, Gosselies, Belgium.
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