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Mustafa K, Han Y, He D, Wang Y, Niu N, Jose PA, Jiang Y, Kopp JB, Lee H, Qu P. Poly-(ADP-ribose) polymerases inhibition by olaparib attenuates activities of the NLRP3 inflammasome and of NF-κB in THP-1 monocytes. PLoS One 2024; 19:e0295837. [PMID: 38335214 PMCID: PMC10857571 DOI: 10.1371/journal.pone.0295837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Accepted: 12/01/2023] [Indexed: 02/12/2024] Open
Abstract
Poly-(ADP-ribose) polymerases (PARPs) are a protein family that make ADP-ribose modifications on target genes and proteins. PARP family members contribute to the pathogenesis of chronic inflammatory diseases, including atherosclerosis, in which monocytes/macrophages play important roles. PARP inhibition is protective against atherosclerosis. However, the mechanisms by which PARP inhibition exerts this beneficial effect are not well understood. Here we show that in THP-1 monocytes, inhibition of PARP by olaparib attenuated oxidized low-density lipoprotein (oxLDL)-induced protein expressions of nucleotide-binding oligomerization domain, leucine-rich repeat and pyrin domain-containing-3 (NLRP3) inflammasome components: NLRP3, apoptosis-associated speck-like protein containing a caspase activation and recruitment domain (ASC), and caspase-1. Consistent with this effect, olaparib decreased oxLDL-enhanced interleukin (IL)-1β and IL-18 protein expression. Olaparib also decreased the oxLDL-mediated increase in mitochondrial reactive oxygen species. Similar to the effects of the NLRP3 inhibitor, MCC950, olaparib attenuated oxLDL-induced adhesion of monocytes to cultured human umbilical vein endothelial cells and reduced foam cell formation. Furthermore, olaparib attenuated the oxLDL-mediated activation of nuclear factor (NF)-κB through the oxLDL-mediated increase in IκBα phosphorylation and assembly of NF-κB subunits, demonstrated by co-immunoprecipitation of IκBα with RelA/p50 and RelB/p52 subunits. Moreover, PARP inhibition decreased oxLDL-mediated protein expression of a NF-κB target gene, VCAM1, encoding vascular cell adhesion molecule-1. This finding indicates an important role for NF-κB activity in PARP-mediated activation of the NLRP3 inflammasome. Thus, PARP inhibition by olaparib attenuates NF-κB and NLRP3 inflammasome activities, lessening monocyte cell adhesion and macrophage foam cell formation. These inhibitory effects of olaparib on NLRP3 activity potentially protect against atherosclerosis.
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Affiliation(s)
- Khamis Mustafa
- Institute of Heart and Vessel Diseases, The Second Affiliated Hospital, Dalian Medical University, Dalian, China
| | - Ying Han
- Department of Cardiology, Jinqiu Hospital of Liaoning Province, Shenyang, China
| | - Dan He
- Institute of Heart and Vessel Diseases, The Second Affiliated Hospital, Dalian Medical University, Dalian, China
| | - Ying Wang
- Institute of Heart and Vessel Diseases, The Second Affiliated Hospital, Dalian Medical University, Dalian, China
| | - Nan Niu
- Department of Cardiology, The Second Affiliated Hospital, Dalian Medical University, Dalian, China
| | - Pedro A. Jose
- Department of Medicine, The George Washington University School of Medicine & Health Sciences, Washington, District of Columbia, United States of America
- Department of Physiology/Pharmacology, The George Washington University School of Medicine & Health Sciences, Washington, District of Columbia, United States of America
| | - Yinong Jiang
- Department of Cardiology, The First Affiliated Hospital, Dalian Medical University, Dalian, China
| | - Jeffrey B. Kopp
- Kidney Disease Section, Kidney Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Hewang Lee
- Institute of Heart and Vessel Diseases, The Second Affiliated Hospital, Dalian Medical University, Dalian, China
- Department of Medicine, The George Washington University School of Medicine & Health Sciences, Washington, District of Columbia, United States of America
- Kidney Disease Section, Kidney Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Peng Qu
- Institute of Heart and Vessel Diseases, The Second Affiliated Hospital, Dalian Medical University, Dalian, China
- Department of Cardiology, The Second Affiliated Hospital, Dalian Medical University, Dalian, China
- Faculty of Medicine, Dalian University of Technology, Dalian, China
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Wang Y, Huang X, Li F, Jia X, Jia N, Fu J, Liu S, Zhang J, Ge H, Huang S, Hui Y, Sun C, Xiao F, Cui X, Luu LDW, Qu D, Li J, Tai J. Serum-integrated omics reveal the host response landscape for severe pediatric community-acquired pneumonia. Crit Care 2023; 27:79. [PMID: 36859478 PMCID: PMC9976684 DOI: 10.1186/s13054-023-04378-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Accepted: 02/21/2023] [Indexed: 03/03/2023] Open
Abstract
OBJECTIVE Community-acquired pneumonia (CAP) is the primary cause of death for children under five years of age globally. Hence, it is essential to investigate new early biomarkers and potential mechanisms involved in disease severity. METHODS Proteomics combined with metabolomics was performed to identify biomarkers suitable for early diagnosis of severe CAP. In the training cohort, proteomics and metabolomics were performed on serum samples obtained from 20 severe CAPs (S-CAPs), 15 non-severe CAPs (NS-CAPs) and 15 healthy controls (CONs). In the verification cohort, selected biomarkers and their combinations were validated using ELISA and metabolomics in an independent cohort of 129 subjects. Finally, a combined proteomics and metabolomics analysis was performed to understand the major pathological features and reasons for severity of CAP. RESULTS The proteomic and metabolic signature was markedly different between S-CAPs, NS-CAPs and CONs. A new serum biomarker panel including 2 proteins [C-reactive protein (CRP), lipopolysaccharide (LBP)] and 3 metabolites [Fasciculol C, PE (14:0/16:1(19Z)), PS (20:0/22:6(4Z, 7Z, 10Z, 13Z, 16Z, 19Z))] was developed to identify CAP and to distinguish severe pneumonia. Pathway analysis of changes revealed activation of the cell death pathway, a dysregulated complement system, coagulation cascade and platelet function, and the inflammatory responses as contributors to tissue damage in children with CAP. Additionally, activation of glycolysis and higher levels of nucleotides led to imbalanced deoxyribonucleotide pools contributing to the development of severe CAP. Finally, dysregulated lipid metabolism was also identified as a potential pathological mechanism for severe progression of CAP. CONCLUSION The integrated analysis of the proteome and metabolome might open up new ways in diagnosing and uncovering the complexity of severity of CAP.
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Affiliation(s)
- Yi Wang
- Experimental Research Center, Capital Institute of Pediatrics, Beijing, 100020, People's Republic of China.
| | - Xiaolan Huang
- Experimental Research Center, Capital Institute of Pediatrics, Beijing, 100020, People's Republic of China
| | - Fang Li
- Department of Critical Medicine, Children's Hospital Affiliated Capital Institute of Pediatrics, Beijing, 100020, People's Republic of China
| | - Xinbei Jia
- Department of Otorhinolaryngology Head and Neck Surgery, Children's Hospital Capital Institute of Pediatrics, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
| | - Nan Jia
- Experimental Research Center, Capital Institute of Pediatrics, Beijing, 100020, People's Republic of China
| | - Jin Fu
- Experimental Research Center, Capital Institute of Pediatrics, Beijing, 100020, People's Republic of China
| | - Shuang Liu
- Department of Critical Medicine, Children's Hospital Affiliated Capital Institute of Pediatrics, Beijing, 100020, People's Republic of China
| | - Jin Zhang
- Department of Critical Medicine, Children's Hospital Affiliated Capital Institute of Pediatrics, Beijing, 100020, People's Republic of China
| | - Haiyan Ge
- Department of Critical Medicine, Children's Hospital Affiliated Capital Institute of Pediatrics, Beijing, 100020, People's Republic of China
| | - Siyuan Huang
- Department of Critical Medicine, Children's Hospital Affiliated Capital Institute of Pediatrics, Beijing, 100020, People's Republic of China
| | - Yi Hui
- Department of Critical Medicine, Children's Hospital Affiliated Capital Institute of Pediatrics, Beijing, 100020, People's Republic of China
| | - Chunrong Sun
- Experimental Research Center, Capital Institute of Pediatrics, Beijing, 100020, People's Republic of China
| | - Fei Xiao
- Experimental Research Center, Capital Institute of Pediatrics, Beijing, 100020, People's Republic of China
| | - Xiaodai Cui
- Experimental Research Center, Capital Institute of Pediatrics, Beijing, 100020, People's Republic of China
| | | | - Dong Qu
- Department of Critical Medicine, Children's Hospital Affiliated Capital Institute of Pediatrics, Beijing, 100020, People's Republic of China.
| | - Jieqiong Li
- Department of Respiratory and Critical Care Medicine, Beijing Institute of Respiratory Medicine, Beijing Chaoyang Hospital, Capital Medical University, Beijing, 100027, People's Republic of China.
| | - Jun Tai
- Department of Otorhinolaryngology Head and Neck Surgery, Children's Hospital Capital Institute of Pediatrics, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China.
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An P, Sezgin E, Kirk GD, Duggal P, Binns-Roemer E, Nelson G, Limou S, Van Natta ML, Jabs DA, Estrella M, Kopp JB, Winkler CA. APOL1 variant alleles associate with reduced risk for opportunistic infections in HIV infection. Commun Biol 2021; 4:284. [PMID: 33674766 PMCID: PMC7977062 DOI: 10.1038/s42003-021-01812-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Accepted: 02/08/2021] [Indexed: 11/10/2022] Open
Abstract
Apolipoprotein L1 (APOL1), an innate immune factor against African trypanosoma brucei, inhibits HIV-1 in vitro. The impact of APOL1 G1-G2 variants on HIV-1-associated opportunistic infections (OIs) is unknown. Here, we report findings from a metaanalysis of four HIV/AIDS prospective cohorts (ALIVE, LSOCA, MACS, and WIHS) including 2066 African American participants. Using a global test combining all four cohorts, carriage of two APOL1 variant alleles is associated with a 50% reduction in odds of OI (combined OR 0.50, 95% CI 0.33-0.76). Subgroup analysis of OI etiological categories (viral, parasitic, fungal and Mycobacterial) suggests the possibility of specific protection from fungal infections (OR 0.54. 95% CI 0.32-0.93; PBonferroni corrected = 0.08). We observe an association of APOL1 variant alleles with host protection against OI in HIV-positive individuals. The study suggests a broader role of APOL1 variant alleles in innate immunity in vivo.
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Affiliation(s)
- Ping An
- Basic Research Laboratory, Molecular Genetic Epidemiology Section, Basic Science Program, Frederick National Laboratory for Cancer Research, Frederick, MD, USA.
| | - Efe Sezgin
- Basic Research Laboratory, Molecular Genetic Epidemiology Section, Basic Science Program, Frederick National Laboratory for Cancer Research, Frederick, MD, USA
- Department of Epidemiology, the Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
- Laboratory of Nutrigenomics and Epidemiology, Izmir Institute of Technology, Izmir, Turkey
| | - Gregory D Kirk
- Department of Epidemiology, the Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
- Department of Medicine, the Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Priya Duggal
- Department of Epidemiology, the Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Elizabeth Binns-Roemer
- Basic Research Laboratory, Molecular Genetic Epidemiology Section, Basic Science Program, Frederick National Laboratory for Cancer Research, Frederick, MD, USA
| | - George Nelson
- Center for Cancer Research Informatics Core, Leidos Biomedical Research, Inc., Frederick National Laboratory for Cancer Research, Frederick, MD, USA
| | - Sophie Limou
- Basic Research Laboratory, Molecular Genetic Epidemiology Section, Basic Science Program, Frederick National Laboratory for Cancer Research, Frederick, MD, USA
- CRTI UMR1064, Inserm, Université de Nantes & ITUN, CHU Nantes, Nantes, France
- Ecole Centrale de Nantes, Nantes, France
| | - Mark L Van Natta
- Department of Epidemiology, the Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Douglas A Jabs
- Department of Epidemiology, the Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
- Department of Ophthalmology, the Wilmer Eye Institute, the Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Michelle Estrella
- Kidney Health Research Collaborative, Department of Medicine, University of California San Francisco, San Francisco, CA, USA
- San Francisco VA Health Care System, San Francisco, CA, USA
| | - Jeffrey B Kopp
- Kidney Disease Section, National Institute of Diabetes and Digestive and Kidney Diseases, NIH, Bethesda, MD, USA
| | - Cheryl A Winkler
- Basic Research Laboratory, Molecular Genetic Epidemiology Section, Basic Science Program, Frederick National Laboratory for Cancer Research, Frederick, MD, USA.
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Lee H, Fessler MB, Qu P, Heymann J, Kopp JB. Macrophage polarization in innate immune responses contributing to pathogenesis of chronic kidney disease. BMC Nephrol 2020; 21:270. [PMID: 32660446 PMCID: PMC7358194 DOI: 10.1186/s12882-020-01921-7] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Accepted: 07/01/2020] [Indexed: 12/11/2022] Open
Abstract
Chronic kidney disease (CKD) is characterized by inflammation, injury and fibrosis. Dysregulated innate immune responses mediated by macrophages play critical roles in progressive renal injury. The differentiation and polarization of macrophages into pro-inflammatory 'M1' and anti-inflammatory 'M2' states represent the two extreme maturation programs of macrophages during tissue injury. However, the effects of macrophage polarization on the pathogenesis of CKD are not fully understood. In this review, we discuss the innate immune mechanisms underlying macrophage polarization and the role of macrophage polarization in the initiation, progression, resolution and recurrence of CKD. Macrophage activation and polarization are initiated through recognition of conserved endogenous and exogenous molecular motifs by pattern recognition receptors, chiefly, Toll-like receptors (TLRs), which are located on the cell surface and in endosomes, and NLR inflammasomes, which are positioned in the cytosol. Recent data suggest that genetic variants of the innate immune molecule apolipoprotein L1 (APOL1) that are associated with increased CKD prevalence in people of African descent, mediate an atypical M1 macrophage polarization. Manipulation of macrophage polarization may offer novel strategies to address dysregulated immunometabolism and may provide a complementary approach along with current podocentric treatment for glomerular diseases.
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Affiliation(s)
- Hewang Lee
- Kidney Disease Section, Kidney Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD, 20892, USA
- Institute of Heart and Vessel Diseases, Affiliated Second Hospital of Dalian Medical University, Dalian, 116023, China
| | - Michael B Fessler
- Immunity, Inflammation, and Disease Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC, 27709, USA
| | - Peng Qu
- Institute of Heart and Vessel Diseases, Affiliated Second Hospital of Dalian Medical University, Dalian, 116023, China
| | - Jurgen Heymann
- Kidney Disease Section, Kidney Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Jeffrey B Kopp
- Kidney Disease Section, Kidney Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD, 20892, USA.
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Ekrikpo UE, Mnika K, Effa EE, Ajayi SO, Okwuonu C, Waziri B, Bello A, Dandara C, Kengne AP, Wonkam A, Okpechi I. Association of Genetic Polymorphisms of TGF-β1, HMOX1, and APOL1 With CKD in Nigerian Patients With and Without HIV. Am J Kidney Dis 2020; 76:100-108. [PMID: 32354559 DOI: 10.1053/j.ajkd.2020.01.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2019] [Accepted: 01/06/2020] [Indexed: 12/27/2022]
Abstract
RATIONALE & OBJECTIVE Recent studies in the human immunodeficiency virus (HIV)-infected population have suggested that there are genetic predispositions to the development of chronic kidney disease (CKD) in this context. We investigated the association of genetic polymorphisms of the genes encoding apolipoprotein L1 (APOL1), transforming growth factor β1 (TGF-β1; a profibrotic cytokine), and heme oxygenase 1 (HMOX1) with prevalent CKD among adults with and without HIV infection. STUDY DESIGN Case-control study. SETTING & PARTICIPANTS West African adults including 217 HIV-infected patients with CKD (HIV+/CKD+ group), 595 HIV-infected patients without CKD (HIV+/CKD- group), 269 with CKD and no HIV infection (HIV-/CKD+ group), and 114 with neither CKD nor HIV (HIV-/CKD- group). EXPOSURE The genetic polymorphisms with reference single-nucleotide polymorphism (rs) identification numbers rs1800469 (TGF-β1), rs1800470 (TGF-β1), rs121918282 (TGF-β1); rs60910145 (APOL1 G1 risk allele), rs73885319 (APOL1 G1 risk allele), rs71785313 (APOL1 G2 risk allele), and rs743811 (HMOX1); HIV. OUTCOME CKD. ANALYTICAL APPROACH Single-nucleotide polymorphism (SNP) genotyping of rs1800469 (TGF-β1), rs1800470 (TGF-β1), rs121918282 (TGF-β1); rs60910145 (APOL1), rs73885319 (APOL1), rs71785313 (APOL1), and rs743811 (HMOX1) was performed. Hardy-Weinberg equilibrium was evaluated for all SNPs, and minor allele frequencies were reported. A case-control analysis was performed, and multivariable logistic regression was used to control for potential confounders. RESULTS Minor allele frequencies for TGF-β1 (rs1800469, rs1800470, and rs1800471), APOL1 (rs60910145, rs73885319, and rs71785313), and HMOX1 (rs743811) were 0.25, 0.46, 0.46, 0.44, 0.45, 0.17, and 0.14, respectively. Among HIV-positive individuals, only TGF-β1 rs1800470 (GG vs AA), APOL1 (in the recessive model), and hypertension were associated with prevalent CKD (adjusted ORs of 0.44 [95% CI, 0.20-0.97], 2.54 [95% CI, 1.44-4.51], and 2.17 [95% CI, 1.35-3.48], respectively). No SNP polymorphisms were associated with prevalent CKD among HIV-negative individuals. LIMITATIONS The lack of histopathology data for proper categorization of the type of HIV-related nephropathy. CONCLUSIONS APOL1 polymorphisms were highly prevalent in this population and among adult patients infected with HIV and were associated with increased CKD risk. The TGF-β1 (rs1800470) polymorphism was associated with reduced risk, and HMOX1 polymorphisms were unassociated with CKD.
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Affiliation(s)
- Udeme E Ekrikpo
- Department of Medicine, University of Uyo, Uyo, Nigeria; Kidney & Hypertension Research Unit, Department of Medicine, University of Cape Town, Cape Town, South Africa
| | - Khuthala Mnika
- Division of Human Genetics, University of Cape Town, Cape Town, South Africa
| | - Emmanuel E Effa
- Department of Medicine, University of Calabar, Calabar, Nigeria
| | - Samuel O Ajayi
- Department of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Chimezie Okwuonu
- Department of Medicine, Federal Medical Centre, Umuahia, Nigeria
| | - Bala Waziri
- Department of Medicine, IBB Specialist Hospital, Minna, Nigeria
| | - Aminu Bello
- Department of Medicine, University of Alberta, Edmonton, Canada
| | - Collet Dandara
- Division of Human Genetics, University of Cape Town, Cape Town, South Africa
| | - Andre P Kengne
- Non-communicable Disease Research Unit, Medical Research Council, Cape Town, South Africa
| | - Ambroise Wonkam
- Division of Human Genetics, University of Cape Town, Cape Town, South Africa.
| | - Ikechi Okpechi
- Kidney & Hypertension Research Unit, Department of Medicine, University of Cape Town, Cape Town, South Africa.
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Uzureau S, Lecordier L, Uzureau P, Hennig D, Graversen JH, Homblé F, Mfutu PE, Oliveira Arcolino F, Ramos AR, La Rovere RM, Luyten T, Vermeersch M, Tebabi P, Dieu M, Cuypers B, Deborggraeve S, Rabant M, Legendre C, Moestrup SK, Levtchenko E, Bultynck G, Erneux C, Pérez-Morga D, Pays E. APOL1 C-Terminal Variants May Trigger Kidney Disease through Interference with APOL3 Control of Actomyosin. Cell Rep 2020; 30:3821-3836.e13. [PMID: 32187552 PMCID: PMC7090385 DOI: 10.1016/j.celrep.2020.02.064] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 01/17/2020] [Accepted: 02/14/2020] [Indexed: 11/18/2022] Open
Abstract
The C-terminal variants G1 and G2 of apolipoprotein L1 (APOL1) confer human resistance to the sleeping sickness parasite Trypanosoma rhodesiense, but they also increase the risk of kidney disease. APOL1 and APOL3 are death-promoting proteins that are partially associated with the endoplasmic reticulum and Golgi membranes. We report that in podocytes, either APOL1 C-terminal helix truncation (APOL1Δ) or APOL3 deletion (APOL3KO) induces similar actomyosin reorganization linked to the inhibition of phosphatidylinositol-4-phosphate [PI(4)P] synthesis by the Golgi PI(4)-kinase IIIB (PI4KB). Both APOL1 and APOL3 can form K+ channels, but only APOL3 exhibits Ca2+-dependent binding of high affinity to neuronal calcium sensor-1 (NCS-1), promoting NCS-1-PI4KB interaction and stimulating PI4KB activity. Alteration of the APOL1 C-terminal helix triggers APOL1 unfolding and increased binding to APOL3, affecting APOL3-NCS-1 interaction. Since the podocytes of G1 and G2 patients exhibit an APOL1Δ or APOL3KO-like phenotype, APOL1 C-terminal variants may induce kidney disease by preventing APOL3 from activating PI4KB, with consecutive actomyosin reorganization of podocytes.
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Affiliation(s)
- Sophie Uzureau
- Laboratory of Molecular Parasitology, IBMM, Université Libre de Bruxelles, 6041 Gosselies, Belgium
| | - Laurence Lecordier
- Laboratory of Molecular Parasitology, IBMM, Université Libre de Bruxelles, 6041 Gosselies, Belgium
| | - Pierrick Uzureau
- Laboratory of Experimental Medicine (ULB222), CHU Charleroi, Université Libre de Bruxelles, Montigny le Tilleul, Belgium
| | - Dorle Hennig
- Department of Molecular Medicine, Cancer and Inflammation Research, University of Southern Denmark, 5000 Odense C, Denmark
| | - Jonas H Graversen
- Department of Molecular Medicine, Cancer and Inflammation Research, University of Southern Denmark, 5000 Odense C, Denmark
| | - Fabrice Homblé
- Laboratory of Structure and Function of Biological Membranes, Université Libre de Bruxelles, 1050 Brussels, Belgium
| | - Pepe Ekulu Mfutu
- Pediatric Nephrology, University Hospital Leuven, 3000 Leuven, Belgium
| | | | - Ana Raquel Ramos
- Institute of Interdisciplinary Research in Human and Molecular Biology, Campus Erasme, Université Libre de Bruxelles, 1070 Brussels, Belgium
| | - Rita M La Rovere
- Laboratory of Molecular and Cellular Signalling, KU Leuven, Herestraat 49, 3000 Leuven, Belgium
| | - Tomas Luyten
- Laboratory of Molecular and Cellular Signalling, KU Leuven, Herestraat 49, 3000 Leuven, Belgium
| | - Marjorie Vermeersch
- Center for Microscopy and Molecular Imaging (CMMI), Université Libre de Bruxelles, 6041 Gosselies, Belgium
| | - Patricia Tebabi
- Laboratory of Molecular Parasitology, IBMM, Université Libre de Bruxelles, 6041 Gosselies, Belgium
| | - Marc Dieu
- URBC-Narilis, University of Namur, 5000 Namur, Belgium
| | - Bart Cuypers
- Biomedical Sciences Department, Institute of Tropical Medicine, 2000 Antwerpen, Belgium; Adrem Data Lab, Department of Mathematics and Computer Science, University of Antwerp, 2000 Antwerpen, Belgium
| | - Stijn Deborggraeve
- Biomedical Sciences Department, Institute of Tropical Medicine, 2000 Antwerpen, Belgium
| | - Marion Rabant
- Adult Nephrology-Transplantation Department, Paris Hospitals and Paris Descartes University, 75006 Paris, France
| | - Christophe Legendre
- Pathology Department, Paris Hospitals and Paris Descartes University, 75006 Paris, France
| | - Søren K Moestrup
- Department of Molecular Medicine, Cancer and Inflammation Research, University of Southern Denmark, 5000 Odense C, Denmark; Department of Biomedicine, University of Aarhus, 8000 Aarhus, Denmark
| | - Elena Levtchenko
- Pediatric Nephrology, University Hospital Leuven, 3000 Leuven, Belgium
| | - Geert Bultynck
- Laboratory of Molecular and Cellular Signalling, KU Leuven, Herestraat 49, 3000 Leuven, Belgium
| | - Christophe Erneux
- Institute of Interdisciplinary Research in Human and Molecular Biology, Campus Erasme, Université Libre de Bruxelles, 1070 Brussels, Belgium
| | - David Pérez-Morga
- Laboratory of Molecular Parasitology, IBMM, Université Libre de Bruxelles, 6041 Gosselies, Belgium; Center for Microscopy and Molecular Imaging (CMMI), Université Libre de Bruxelles, 6041 Gosselies, Belgium
| | - Etienne Pays
- Laboratory of Molecular Parasitology, IBMM, Université Libre de Bruxelles, 6041 Gosselies, Belgium.
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Lian G, Chen S, Ouyang M, Li F, Chen L, Yang J. Colon Cancer Cell Secretes EGF to Promote M2 Polarization of TAM Through EGFR/PI3K/AKT/mTOR Pathway. Technol Cancer Res Treat 2019; 18:1533033819849068. [PMID: 31088266 PMCID: PMC6535704 DOI: 10.1177/1533033819849068] [Citation(s) in RCA: 88] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Background: Tumor environment has been recognized to affect cancer cell progression, such as tumor-associated macrophages. However, increasing evidences suggest that tumor cells are capable of regulating polarization of tumor-associated macrophages. In this study, we investigate the mechanism of how colon cancer cell impacts tumor-associated macrophages polarization. Methods: We employed flow cytometry to detect marker molecules on macrophage membrane, such as CD68, CD16, and CD204. In addition, we used enzyme-linked immunosorbent assay to examine the level of these cytokines (interleukin-6, interleukin-1β, interleukin-10, and Arginase-1) secreted by colon cancer cells into the culture medium. Western blot was utilized to probe downstream proteins of epidermal growth factor receptor (EGFR)/phosphoinositide 3-kinase (PI3K)/protein kinase B (AKT)/mammalian target of rapamycin (mTOR) pathway. Results: We cocultured colon cancer cell lines (HCT8 or HCT116) with human myeloid leukemia mononuclear cells (THP-1) and found that interleukin-6 and interleukin-1β levels were reduced, and instead, interleukin-10 and Arginase-1 levels were elevated, suggesting that colon cancer cells contributed to M2 polarization of THP-1. Meanwhile, high level of various growth factors (transforming growth factor-β [TGF-β], epidermal growth factor [EGF], and hepatocyte growth factor [HGF]) was observed in the medium of THP-1 cocultured with colon cancer cells. Furthermore, the protein level of phosphorylated PI3K, AKT, and mTOR significantly increased in THP-1 cell cocultured with colon cancer cells compared to THP-1 group. Besides, we established that colon cancer cells exerted their stimulatory effect on M2 polarization of macrophage from monocyte THP-1 using EGFR antibody mAb225 and PI3K inhibitor LY294002. Conclusion: We provide evidence that EGF which are secreted by colon cancer cells play contributory role in M2 polarization of macrophages, which support the notion that tumor environment, including tumor-associated macrophages, can be targeted to develop effective strategies for treating cancer.
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Affiliation(s)
- Guanghui Lian
- 1 Department of Gastroenterology, Xiangya Hospital, Central South University, Changsha, People's Republic of China
| | - Shuijiao Chen
- 1 Department of Gastroenterology, Xiangya Hospital, Central South University, Changsha, People's Republic of China
| | - Miao Ouyang
- 1 Department of Gastroenterology, Xiangya Hospital, Central South University, Changsha, People's Republic of China
| | - Fujun Li
- 1 Department of Gastroenterology, Xiangya Hospital, Central South University, Changsha, People's Republic of China
| | - Linlin Chen
- 1 Department of Gastroenterology, Xiangya Hospital, Central South University, Changsha, People's Republic of China
| | - Junwen Yang
- 1 Department of Gastroenterology, Xiangya Hospital, Central South University, Changsha, People's Republic of China
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Ma L, Freedman BI. APOL1 Nephropathy Risk Variant Associations with Diseases beyond the Kidney: APOL1 and Sepsis. Clin J Am Soc Nephrol 2019; 14:1684-1686. [PMID: 31704670 PMCID: PMC6895491 DOI: 10.2215/cjn.10550919] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Lijun Ma
- Department of Internal Medicine, Section on Nephrology, Wake Forest School of Medicine, Winston-Salem, North Carolina
| | - Barry I Freedman
- Department of Internal Medicine, Section on Nephrology, Wake Forest School of Medicine, Winston-Salem, North Carolina
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Abstract
The apolipoprotein L1 (APOL1) gene is unique to humans and gorillas and appeared ~33 million years ago. Since the majority of the mammals do not carry APOL1, it seems to be dispensable for kidney function. APOL1 renal risk variants (RRVs; G1 and G2) are associated with the development as well as progression of chronic kidney diseases (CKDs) at higher rates in populations with African ancestry. Cellular expression of two APOL1 RRVs has been demonstrated to induce cytotoxicity, including necrosis, apoptosis, and pyroptosis, in several cell types including podocytes; mechanistically, these toxicities were attributed to lysosomal swelling, K+ depletion, mitochondrial dysfunction, autophagy blockade, protein kinase receptor activation, ubiquitin D degradation, and endoplasmic reticulum stress; notably, these effects were found to be dose dependent and occurred only in overtly APOL1 RRV-expressing cells. However, cellular protein expressions as well as circulating blood levels of APOL1 RRVs were not elevated in patients suffering from APOL1 RRV-associated CKDs. Therefore, the question arises as to whether it is gain or loss of function on the part of APOL1 RRVs contributing to kidney cell injury. The question seems to be more pertinent after the recognition of the role of APOL1 nonrisk (G0) in the transition of parietal epithelial cells and preservation of the podocyte molecular phenotype through modulation of the APOL1-miR-193a axis. With this background, the present review analyzed the available literature in terms of the known function of APOL1 nonrisk and how the loss of these functions could have contributed to two APOL1 RRV-associated CKDs.
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Affiliation(s)
- Vinod Kumar
- Institute of Molecular Medicine, Feinstein Institute for Medical Research and Department of Medicine, Zucker School of Medicine at Hofstra-Northwell, Hempstead, New York
| | - Pravin C Singhal
- Institute of Molecular Medicine, Feinstein Institute for Medical Research and Department of Medicine, Zucker School of Medicine at Hofstra-Northwell, Hempstead, New York
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10
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Abstract
PURPOSE OF REVIEW APOL1 nephropathy risk variants drive most of the excess risk of chronic kidney disease (CKD) seen in African Americans, but whether the same risk variants account for excess cardiovascular risk remains unclear. This mini-review highlights the controversies in the APOL1 cardiovascular field. RECENT FINDINGS In the past 10 years, our understanding of how APOL1 risk variants contribute to renal cytotoxicity has increased. Some of the proposed mechanisms for kidney disease are biologically plausible for cells and tissues relevant to cardiovascular disease (CVD), but cardiovascular studies published since 2014 have reported conflicting results regarding APOL1 risk variant association with cardiovascular outcomes. In the past year, several studies have also contributed conflicting results from different types of study populations. SUMMARY Heterogeneity in study population and study design has led to differing reports on the role of APOL1 nephropathy risk variants in CVD. Without consistently validated associations between these risk variants and CVD, mechanistic studies for APOL1's role in cardiovascular biology lag behind.
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11
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Abstract
PURPOSE OF REVIEW Consistent associations between variants of the apolipoprotein L1 (APOL1) gene and nondiabetic nephropathy have been reported in individuals of African descent. Donor APOL1 genotype has also been linked to shorter renal allograft survival. This review summarizes recent advances in understanding the biology of APOL1 and their implications to kidney donors and recipients. RECENT FINDINGS Approximately 12-13% of African Americans have two renal risk APOL1 variants but most do not develop kidney disease. Although the exact mechanisms linking APOL1 genotype to renal injury are not known, evidence from new experimental models suggests APOL1 mutations may accelerate age-related podocyte loss. Recent epidemiological studies indicate potential kidney donors with high-risk APOL1 variants have increased risk of chronic kidney disease (CKD) and donors with high-risk APOL1 variants have lower estimated glomerular filtration rate (eGFR) than those with low-risk variants. The absolute risk of CKD in otherwise healthy individuals carrying high-risk APOL1 mutations is likely low. SUMMARY Recent studies suggest high-risk APOL1 mutations in kidney donors are linked to shorter graft survival and lower postdonation eGFR. APOL1 genotyping may be used as one of many factors that contribute to assessment of the risk of postdonation CKD and informed decision making.
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12
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Kumar V, Vashistha H, Lan X, Chandel N, Ayasolla K, Shoshtari SSM, Aslam R, Paliwal N, Abbruscato F, Mikulak J, Popik W, Atta MG, Chander PN, Malhotra A, Meyer-Schwesinger C, Skorecki K, Singhal PC. Role of Apolipoprotein L1 in Human Parietal Epithelial Cell Transition. THE AMERICAN JOURNAL OF PATHOLOGY 2018; 188:2508-2528. [PMID: 30201495 PMCID: PMC6222279 DOI: 10.1016/j.ajpath.2018.07.025] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2018] [Revised: 05/24/2018] [Accepted: 07/02/2018] [Indexed: 02/03/2023]
Abstract
Human parietal epithelial cells (PECs) are progenitor cells that sustain podocyte homeostasis. We hypothesized that the lack of apolipoprotein (APO) L1 ensures the PEC phenotype, but its induction initiates PEC transition (expression of podocyte markers). APOL1 expression and down-regulation of miR193a coincided with the expression of podocyte markers during the transition. The induction of APOL1 also stimulated transition markers in human embryonic kidney cells (cells with undetectable APOL1 protein expression). APOL1 silencing in PECs up-regulated miR193a expression, suggesting the possibility of a reciprocal feedback relationship between APOL1 and miR193a. HIV, interferon-γ, and vitamin D receptor agonist down-regulated miR193a expression and induced APOL1 expression along with transition markers in PECs. Luciferase assay suggested a putative interaction between miR193a and APOL1. Since silencing of APOL1 attenuated HIV-, vitamin D receptor agonist-, miR193a inhibitor-, and interferon-γ-induced expression of transition markers, APOL1 appears to be a critical functional constituent of the miR193a- APOL1 axis in PECs. This notion was confirmed by further enhanced expression of PEC markers in APOL1 mRNA-silenced PECs. In vivo studies, glomeruli in patients with HIV, and HIV/APOL1 transgenic mice had foci of PECs expressing synaptopodin, a transition marker. APOL1 likely regulates PEC molecular phenotype through modulation of miR193a expression, and APOL1 and miR193a share a reciprocal feedback relationship.
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Affiliation(s)
- Vinod Kumar
- Immunology and Inflammation Center, Feinstein Institute for Medical Research and Zucker School of Medicine at Hofstra-Northwell, Manhasset, New York
| | - Himanshu Vashistha
- Institute of Translational Research, the Ochsner Clinic, New Orleans, Louisiana
| | - Xiqian Lan
- Immunology and Inflammation Center, Feinstein Institute for Medical Research and Zucker School of Medicine at Hofstra-Northwell, Manhasset, New York
| | - Nirupama Chandel
- Immunology and Inflammation Center, Feinstein Institute for Medical Research and Zucker School of Medicine at Hofstra-Northwell, Manhasset, New York
| | - Kamesh Ayasolla
- Immunology and Inflammation Center, Feinstein Institute for Medical Research and Zucker School of Medicine at Hofstra-Northwell, Manhasset, New York
| | - Seyedeh Shadafarin Marashi Shoshtari
- Immunology and Inflammation Center, Feinstein Institute for Medical Research and Zucker School of Medicine at Hofstra-Northwell, Manhasset, New York
| | - Rukhsana Aslam
- Immunology and Inflammation Center, Feinstein Institute for Medical Research and Zucker School of Medicine at Hofstra-Northwell, Manhasset, New York
| | - Nitpriya Paliwal
- Immunology and Inflammation Center, Feinstein Institute for Medical Research and Zucker School of Medicine at Hofstra-Northwell, Manhasset, New York
| | - Frank Abbruscato
- Institute of Translational Research, the Ochsner Clinic, New Orleans, Louisiana
| | - Joanna Mikulak
- Humanitas Clinical and Research Center, Rozzano, Milan, Italy
| | - Waldemar Popik
- Health Disparities and HIV, Meharry Medical College, Nashville, Tennessee
| | - Mohamed G Atta
- Nephrogy Division, Johns Hopkins Hospital, Baltimore, Maryland
| | - Praveen N Chander
- Department of Pathology, New York Medical College, Valhalla, New York
| | - Ashwani Malhotra
- Immunology and Inflammation Center, Feinstein Institute for Medical Research and Zucker School of Medicine at Hofstra-Northwell, Manhasset, New York
| | | | - Karl Skorecki
- Technion-Israel Institute of Technology, Rambam Health Care Campus, Haifa, Israel
| | - Pravin C Singhal
- Immunology and Inflammation Center, Feinstein Institute for Medical Research and Zucker School of Medicine at Hofstra-Northwell, Manhasset, New York.
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