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Mu J, Lin Q, Chen Y, Wang J, Yu X, Huang F, Liu X, Fang Y, Li Y, Zhu B, Liang Y. Rice bran active peptide (RBAP) inhibited macrophage differentiation to foam cell and atherosclerosis in mice via regulating cholesterol efflux. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 132:155864. [PMID: 39032281 DOI: 10.1016/j.phymed.2024.155864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2024] [Revised: 06/11/2024] [Accepted: 07/08/2024] [Indexed: 07/23/2024]
Abstract
BACKGROUND Atherosclerosis is a long-lasting inflammatory condition affecting the walls of arteries, marked by the buildup of fats, plaque formation, and vascular remodeling. Recent findings highlight the significance of cholesterol removal pathways in influencing atherosclerosis, yet the connection between cholesterol removal and regulation of macrophage inflammation remains poorly understood. RBAP could serve as an anti-inflammatory agent; however, its role in atherosclerosis and the mechanism behind it are still not well understood. PURPOSE The objective of this research is to explore how RBAP impacts cholesterol efflux, which is a considerable element in the advancement of atherosclerosis. METHODS An atherosclerosis mouse model was established by using an ApoE KO strain mouse on a high-fat diet (HFD) to assess the effects of RBAP, conducted either orally or through injection. Additionally, in vitro experiments were conducted where the induction of THP-1 cells was conducted for the differentiation towards macrophages, and along with mouse RAW264.7 cells, were challenged with ox-LDL to evaluate the impact of RBAP. RESULTS In this study, RBAP was found to reduce the production and downregulate TNF-α, IL-1β, and IL-6 levels and inhibited the activation of the TLR4/MyD88/NF-κB signaling in atherosclerosis model mice, as well as in ox-LDL-challenged THP-1 cells and mouse RAW264.7 macrophages. RBAP's effectiveness also improved the enhancement of reverse cholesterol transport (RCT) and cholesterol removal to HDL and apoA1 by increasing the activity of genes related to cholesterol removal PPARγ/LXRα/ABCA1/ABCG1, both in ApoE-/- mice and in THP-1 cells and mouse RAW264.7 macrophages. Notably, RBAP exerted similar effects on atherosclerosis model mice and macrophages to those of TAK-242, an inhibitor of the TLR4 signaling. When RBAP and TAK-242 were applied simultaneously, the improvement was not enhanced compared with either RBAP or TAK-242 treatment alone. CONCLUSION These findings suggest that RBAP, as a TLR4 inhibitor, has anti-atherosclerotic effects by improving inflammation and promoting cholesterol effection, indicating its therapeutic potential in intervening atherosclerosis.
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Affiliation(s)
- Jianfei Mu
- Molecular Nutrition Branch, National Engineering Research Center of Rice and By-product Deep Processing, College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, Hunan, PR China
| | - Qinlu Lin
- Molecular Nutrition Branch, National Engineering Research Center of Rice and By-product Deep Processing, College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, Hunan, PR China
| | - Yajuan Chen
- Molecular Nutrition Branch, National Engineering Research Center of Rice and By-product Deep Processing, College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, Hunan, PR China
| | - Jianqiang Wang
- Molecular Nutrition Branch, National Engineering Research Center of Rice and By-product Deep Processing, College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, Hunan, PR China
| | - Xudong Yu
- Molecular Nutrition Branch, National Engineering Research Center of Rice and By-product Deep Processing, College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, Hunan, PR China
| | - Fang Huang
- Molecular Nutrition Branch, National Engineering Research Center of Rice and By-product Deep Processing, College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, Hunan, PR China
| | - Xinxin Liu
- Molecular Nutrition Branch, National Engineering Research Center of Rice and By-product Deep Processing, College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, Hunan, PR China
| | - Yong Fang
- College of Food Science and Engineering, Nanjing University of Finance and Economics/Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing, Jiangsu 210023, PR China
| | - Yusheng Li
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan 410008, PR China; Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, Hunan, PR China
| | - Beiwei Zhu
- National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian, Liaoning 116034, PR China.
| | - Ying Liang
- Molecular Nutrition Branch, National Engineering Research Center of Rice and By-product Deep Processing, College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, Hunan, PR China.
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Tang J, Li X, Li W, Cao C. The Protective Effect of Octanoic Acid on Sepsis: A Review. Nutr Rev 2024:nuae106. [PMID: 39101596 DOI: 10.1093/nutrit/nuae106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/06/2024] Open
Abstract
Sepsis, a systemic inflammation that occurs in response to a bacterial infection, is a significant medical challenge. Research conducted over the past decade has indicated strong associations among a patient's nutritional status, the composition of their gut microbiome, and the risk, severity, and prognosis of sepsis. Octanoic acid (OA) plays a vital role in combating sepsis and has a protective effect on both animal models and human patients. In this discussion, the potential protective mechanisms of OA in sepsis, focusing on its regulation of the inflammatory response, immune system, oxidative stress, gastrointestinal microbiome and barrier function, metabolic disorders and malnutrition, as well as organ dysfunction are explored. A comprehensive understanding of the mechanisms by which OA act may pave the way for new preventive and therapeutic approaches to sepsis.
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Affiliation(s)
- Jiabao Tang
- Department of General Surgery, Second Affiliated Hospital of Soochow University, Suzhou 215004, China
| | - Xiaohua Li
- Department of General Surgery, Second Affiliated Hospital of Soochow University, Suzhou 215004, China
- Department of Thyroid and Breast Surgery, Suzhou Wuzhong People's Hospital, Suzhou 215004, China
| | - Wei Li
- Department of General Surgery, Second Affiliated Hospital of Soochow University, Suzhou 215004, China
| | - Chun Cao
- Department of General Surgery, Second Affiliated Hospital of Soochow University, Suzhou 215004, China
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Terao R, Lee TJ, Colasanti J, Pfeifer CW, Lin JB, Santeford A, Hase K, Yamaguchi S, Du D, Sohn BS, Sasaki Y, Yoshida M, Apte RS. LXR/CD38 activation drives cholesterol-induced macrophage senescence and neurodegeneration via NAD + depletion. Cell Rep 2024; 43:114102. [PMID: 38636518 PMCID: PMC11223747 DOI: 10.1016/j.celrep.2024.114102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 02/23/2024] [Accepted: 03/27/2024] [Indexed: 04/20/2024] Open
Abstract
Although dysregulated cholesterol metabolism predisposes aging tissues to inflammation and a plethora of diseases, the underlying molecular mechanism remains poorly defined. Here, we show that metabolic and genotoxic stresses, convergently acting through liver X nuclear receptor, upregulate CD38 to promote lysosomal cholesterol efflux, leading to nicotinamide adenine dinucleotide (NAD+) depletion in macrophages. Cholesterol-mediated NAD+ depletion induces macrophage senescence, promoting key features of age-related macular degeneration (AMD), including subretinal lipid deposition and neurodegeneration. NAD+ augmentation reverses cellular senescence and macrophage dysfunction, preventing the development of AMD phenotype. Genetic and pharmacological senolysis protect against the development of AMD and neurodegeneration. Subretinal administration of healthy macrophages promotes the clearance of senescent macrophages, reversing the AMD disease burden. Thus, NAD+ deficit induced by excess intracellular cholesterol is the converging mechanism of macrophage senescence and a causal process underlying age-related neurodegeneration.
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Affiliation(s)
- Ryo Terao
- John F. Hardesty, MD Department of Ophthalmology & Visual Sciences, Washington University School of Medicine, St. Louis, MO, USA; Department of Ophthalmology, Graduate School of Medicine, the University of Tokyo, Tokyo, Japan
| | - Tae Jun Lee
- John F. Hardesty, MD Department of Ophthalmology & Visual Sciences, Washington University School of Medicine, St. Louis, MO, USA
| | - Jason Colasanti
- John F. Hardesty, MD Department of Ophthalmology & Visual Sciences, Washington University School of Medicine, St. Louis, MO, USA
| | - Charles W Pfeifer
- John F. Hardesty, MD Department of Ophthalmology & Visual Sciences, Washington University School of Medicine, St. Louis, MO, USA
| | - Joseph B Lin
- John F. Hardesty, MD Department of Ophthalmology & Visual Sciences, Washington University School of Medicine, St. Louis, MO, USA
| | - Andrea Santeford
- John F. Hardesty, MD Department of Ophthalmology & Visual Sciences, Washington University School of Medicine, St. Louis, MO, USA
| | - Keitaro Hase
- John F. Hardesty, MD Department of Ophthalmology & Visual Sciences, Washington University School of Medicine, St. Louis, MO, USA; Department of Ophthalmology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Hokkaido, Japan
| | - Shinobu Yamaguchi
- John F. Hardesty, MD Department of Ophthalmology & Visual Sciences, Washington University School of Medicine, St. Louis, MO, USA
| | - Daniel Du
- John F. Hardesty, MD Department of Ophthalmology & Visual Sciences, Washington University School of Medicine, St. Louis, MO, USA
| | - Brian S Sohn
- John F. Hardesty, MD Department of Ophthalmology & Visual Sciences, Washington University School of Medicine, St. Louis, MO, USA
| | - Yo Sasaki
- Department of Genetics, Washington University School of Medicine, St. Louis, MO, USA
| | - Mitsukuni Yoshida
- John F. Hardesty, MD Department of Ophthalmology & Visual Sciences, Washington University School of Medicine, St. Louis, MO, USA; Department of Anesthesiology, Washington University School of Medicine, St. Louis, MO, USA.
| | - Rajendra S Apte
- John F. Hardesty, MD Department of Ophthalmology & Visual Sciences, Washington University School of Medicine, St. Louis, MO, USA; Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA; Department of Developmental Biology, Washington University School of Medicine, St. Louis, MO, USA.
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4
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Govatati S, Kumar R, Boro M, Traylor JG, Orr AW, Lusis AJ, Rao GN. TRIM13 reduces cholesterol efflux and increases oxidized LDL uptake leading to foam cell formation and atherosclerosis. J Biol Chem 2024; 300:107224. [PMID: 38537695 PMCID: PMC11053335 DOI: 10.1016/j.jbc.2024.107224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Revised: 03/11/2024] [Accepted: 03/13/2024] [Indexed: 04/25/2024] Open
Abstract
Impaired cholesterol efflux and/or uptake can influence arterial lipid accumulation leading to atherosclerosis. Here, we report that tripartite motif-containing protein 13 (TRIM13), a RING-type E3 ubiquitin ligase, plays a role in arterial lipid accumulation leading to atherosclerosis. Using molecular approaches and KO mouse model, we found that TRIM13 expression was induced both in the aorta and peritoneal macrophages (pMφ) of ApoE-/- mice in response to Western diet (WD) in vivo. Furthermore, proatherogenic cytokine interleukin-1β also induced TRIM13 expression both in pMφ and vascular smooth muscle cells. Furthermore, we found that TRIM13 via ubiquitination and degradation of liver X receptor (LXR)α/β downregulates the expression of their target genes ABCA1/G1 and thereby inhibits cholesterol efflux. In addition, TRIM13 by ubiquitinating and degrading suppressor of cytokine signaling 1/3 (SOCS1/3) mediates signal transducer and activator of transcription 1 (STAT1) activation, CD36 expression, and foam cell formation. In line with these observations, genetic deletion of TRIM13 by rescuing cholesterol efflux and inhibiting foam cell formation protects against diet-induced atherosclerosis. We also found that while TRIM13 and CD36 levels were increased, LXRα/β, ABCA1/G1, and SOCS3 levels were decreased both in Mφ and smooth muscle cells of stenotic human coronary arteries as compared to nonstenotic arteries. More intriguingly, the expression levels of TRIM13 and its downstream signaling molecules were correlated with the severity of stenotic lesions. Together, these observations reveal for the first time that TRIM13 plays a crucial role in diet-induced atherosclerosis, and that it could be a potential drug target against this vascular lesion.
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Affiliation(s)
- Suresh Govatati
- Department of Physiology, University of Tennessee Health Science Center, Memphis, Tennessee, USA
| | - Raj Kumar
- Department of Physiology, University of Tennessee Health Science Center, Memphis, Tennessee, USA
| | - Monoranjan Boro
- Department of Physiology, University of Tennessee Health Science Center, Memphis, Tennessee, USA
| | - James G Traylor
- Department of Pathology, Louisiana State University Health Science Center, Shreveport, Louisiana, USA
| | - A Wayne Orr
- Department of Pathology, Louisiana State University Health Science Center, Shreveport, Louisiana, USA
| | - Aldons J Lusis
- Division of Cardiology, Department of Medicine, University of California, Los Angeles, California, USA
| | - Gadiparthi N Rao
- Department of Physiology, University of Tennessee Health Science Center, Memphis, Tennessee, USA.
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5
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Kong W, Frouard J, Xie G, Corley MJ, Helmy E, Zhang G, Schwarzer R, Montano M, Sohn P, Roan NR, Ndhlovu LC, Gan L, Greene WC. Neuroinflammation generated by HIV-infected microglia promotes dysfunction and death of neurons in human brain organoids. PNAS NEXUS 2024; 3:pgae179. [PMID: 38737767 PMCID: PMC11086946 DOI: 10.1093/pnasnexus/pgae179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/20/2024] [Accepted: 04/17/2024] [Indexed: 05/14/2024]
Abstract
Despite the success of combination antiretroviral therapy (ART) for individuals living with HIV, mild forms of HIV-associated neurocognitive disorder (HAND) continue to occur. Brain microglia form the principal target for HIV infection in the brain. It remains unknown how infection of these cells leads to neuroinflammation, neuronal dysfunction, and/or death observed in HAND. Utilizing two different inducible pluripotent stem cell-derived brain organoid models (cerebral and choroid plexus [ChP] organoids) containing microglia, we investigated the pathogenic changes associated with HIV infection. Infection of microglia was associated with a sharp increase in CCL2 and CXCL10 chemokine gene expression and the activation of many type I interferon stimulated genes (MX1, ISG15, ISG20, IFI27, IFITM3 and others). Production of the proinflammatory chemokines persisted at low levels after treatment of the cell cultures with ART, consistent with the persistence of mild HAND following clinical introduction of ART. Expression of multiple members of the S100 family of inflammatory genes sharply increased following HIV infection of microglia measured by single-cell RNA-seq. However, S100 gene expression was not limited to microglia but was also detected more broadly in uninfected stromal cells, mature and immature ChP cells, neural progenitor cells and importantly in bystander neurons suggesting propagation of the inflammatory response to bystander cells. Neurotransmitter transporter expression declined in uninfected neurons, accompanied by increased expression of genes promoting cellular senescence and cell death. Together, these studies underscore how an inflammatory response generated in HIV-infected microglia is propagated to multiple uninfected bystander cells ultimately resulting in the dysfunction and death of bystander neurons.
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Affiliation(s)
- Weili Kong
- Michael Hulton Center for HIV Cure Research at Gladstone, San Francisco, CA 94158, USA
- Gladstone Institute of Virology, San Francisco, CA 94158, USA
| | - Julie Frouard
- Michael Hulton Center for HIV Cure Research at Gladstone, San Francisco, CA 94158, USA
- Gladstone Institute of Virology, San Francisco, CA 94158, USA
- Department of Urology, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Guorui Xie
- Michael Hulton Center for HIV Cure Research at Gladstone, San Francisco, CA 94158, USA
- Gladstone Institute of Virology, San Francisco, CA 94158, USA
- Department of Urology, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Michael J Corley
- Division of Infectious Diseases, Department of Medicine, Weill Cornell Medicine, New York, NY 10021, USA
- Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY 10021, USA
| | - Ekram Helmy
- Michael Hulton Center for HIV Cure Research at Gladstone, San Francisco, CA 94158, USA
- Gladstone Institute of Virology, San Francisco, CA 94158, USA
| | - Gang Zhang
- Michael Hulton Center for HIV Cure Research at Gladstone, San Francisco, CA 94158, USA
- Gladstone Institute of Virology, San Francisco, CA 94158, USA
| | - Roland Schwarzer
- Michael Hulton Center for HIV Cure Research at Gladstone, San Francisco, CA 94158, USA
- Gladstone Institute of Virology, San Francisco, CA 94158, USA
| | - Mauricio Montano
- Michael Hulton Center for HIV Cure Research at Gladstone, San Francisco, CA 94158, USA
- Gladstone Institute of Virology, San Francisco, CA 94158, USA
| | - Peter Sohn
- Gladstone Institute of Neurological Disease, San Francisco, CA 94158, USA
| | - Nadia R Roan
- Michael Hulton Center for HIV Cure Research at Gladstone, San Francisco, CA 94158, USA
- Gladstone Institute of Virology, San Francisco, CA 94158, USA
- Department of Urology, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Lishomwa C Ndhlovu
- Division of Infectious Diseases, Department of Medicine, Weill Cornell Medicine, New York, NY 10021, USA
- Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY 10021, USA
| | - Li Gan
- Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY 10021, USA
- Helen and Robert Appel Alzheimer's Disease Research Institute, Weill Cornell Medicine, New York, NY 10021, USA
| | - Warner C Greene
- Michael Hulton Center for HIV Cure Research at Gladstone, San Francisco, CA 94158, USA
- Gladstone Institute of Virology, San Francisco, CA 94158, USA
- Departments of Medicine and Microbiology and Immunology, University of California, San Francisco, San Francisco, CA 94143, USA
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6
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Yalcinkaya M, Liu W, Xiao T, Abramowicz S, Wang R, Wang N, Westerterp M, Tall AR. Cholesterol trafficking to the ER leads to the activation of CaMKII/JNK/NLRP3 and promotes atherosclerosis. J Lipid Res 2024; 65:100534. [PMID: 38522750 PMCID: PMC11031842 DOI: 10.1016/j.jlr.2024.100534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Revised: 03/12/2024] [Accepted: 03/14/2024] [Indexed: 03/26/2024] Open
Abstract
The deposition of cholesterol-rich lipoproteins in the arterial wall triggers macrophage inflammatory responses, which promote atherosclerosis. The NLRP3 inflammasome aggravates atherosclerosis; however, cellular mechanisms connecting macrophage cholesterol accumulation to inflammasome activation are poorly understood. We investigated the mechanisms of NLRP3 inflammasome activation in cholesterol-loaded macrophages and in atherosclerosis-prone Ldlr-/- mice with defects in macrophage cholesterol efflux. We found that accumulation of cholesterol in macrophages treated with modified LDL or cholesterol crystals, or in macrophages defective in the cholesterol efflux promoting transporters ABCA1 and ABCG1, leads to activation of NLRP3 inflammasomes as a result of increased cholesterol trafficking from the plasma membrane to the ER, via Aster-B. In turn, the accumulation of cholesterol in the ER activates the inositol triphosphate-3 receptor, CaMKII/JNK, and induces NLRP3 deubiquitylation by BRCC3. An NLRP3 deubiquitylation inhibitor or deficiency of Abro1, an essential scaffolding protein in the BRCC3-containing cytosolic complex, suppressed inflammasome activation, neutrophil extracellular trap formation (NETosis), and atherosclerosis in vivo. These results identify a link between the trafficking of cholesterol to the ER, NLRP3 deubiquitylation, inflammasome activation, and atherosclerosis.
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Affiliation(s)
- Mustafa Yalcinkaya
- Division of Molecular Medicine, Department of Medicine, Columbia University Irving Medical Center, New York, NY, USA.
| | - Wenli Liu
- Division of Molecular Medicine, Department of Medicine, Columbia University Irving Medical Center, New York, NY, USA
| | - Tong Xiao
- Division of Molecular Medicine, Department of Medicine, Columbia University Irving Medical Center, New York, NY, USA
| | - Sandra Abramowicz
- Division of Molecular Medicine, Department of Medicine, Columbia University Irving Medical Center, New York, NY, USA
| | - Ranran Wang
- Division of Molecular Medicine, Department of Medicine, Columbia University Irving Medical Center, New York, NY, USA
| | - Nan Wang
- Division of Molecular Medicine, Department of Medicine, Columbia University Irving Medical Center, New York, NY, USA
| | - Marit Westerterp
- Division of Molecular Medicine, Department of Medicine, Columbia University Irving Medical Center, New York, NY, USA; Department of Pediatrics, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Alan R Tall
- Division of Molecular Medicine, Department of Medicine, Columbia University Irving Medical Center, New York, NY, USA.
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Li H, Wang M, Qu K, Xu R, Zhu H. MP Allosterically Activates AMPK to Enhance ABCA1 Stability by Retarding the Calpain-Mediated Degradation Pathway. Int J Mol Sci 2023; 24:17280. [PMID: 38139111 PMCID: PMC10743971 DOI: 10.3390/ijms242417280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 12/01/2023] [Accepted: 12/05/2023] [Indexed: 12/24/2023] Open
Abstract
It is widely recognized that macrophage cholesterol efflux mediated by the ATP-binding cassette transporter A1 (ABCA1) constitutes the initial and rate-limiting step of reverse cholesterol transport (RCT), displaying a negative correlation with the development of atherosclerosis. Although the transcriptional regulation of ABCA1 has been extensively studied in previous research, the impact of post-translational regulation on its expression remains to be elucidated. In this study, we report an AMP-activated protein kinase (AMPK) agonist called ((2R,3S,4R,5R)-3,4-dihydroxy-5-(6-((3-hydroxyphenyl) amino)-9H-purin-9-yl) tetrahydrofuran-2-yl) methyl dihydrogen phosphate (MP), which enhances ABCA1 expression through post-translational regulation rather than transcriptional regulation. By integrating the findings of multiple experiments, it is confirmed that MP directly binds to AMPK with a moderate binding affinity, subsequently triggering its allosteric activation. Further investigations conducted on macrophages unveil a novel mechanism through which MP modulates ABCA1 expression. Specifically, MP downregulates the Cav1.2 channel to obstruct the influx of extracellular Ca2+, thereby diminishing intracellular Ca2+ levels, suppressing calcium-activated calpain activity, and reducing the interaction strength between calpain and ABCA1. This cascade of events culminates in the deceleration of calpain-mediated degradation of ABCA1. In conclusion, MP emerges as a potentially promising candidate compound for developing agents aimed at enhancing ABCA1 stability and boosting cellular cholesterol efflux and RCT.
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Affiliation(s)
| | | | | | | | - Haibo Zhu
- State Key Laboratory for Bioactive Substances and Functions of Natural Medicines, Beijing Key Laboratory of New Drug Mechanisms and Pharmacological Evaluation Study, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Xian Nong Tan Street 1, Xicheng District, Beijing 100050, China; (H.L.); (M.W.); (K.Q.); (R.X.)
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8
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Dubner AM, Lu S, Jolly AJ, Strand KA, Mutryn MF, Hinthorn T, Noble T, Nemenoff RA, Moulton KS, Majesky MW, Weiser-Evans MC. Smooth muscle-derived adventitial progenitor cells direct atherosclerotic plaque composition complexity in a Klf4-dependent manner. JCI Insight 2023; 8:e174639. [PMID: 37991018 PMCID: PMC10755692 DOI: 10.1172/jci.insight.174639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Accepted: 10/05/2023] [Indexed: 11/23/2023] Open
Abstract
We previously established that vascular smooth muscle-derived adventitial progenitor cells (AdvSca1-SM) preferentially differentiate into myofibroblasts and contribute to fibrosis in response to acute vascular injury. However, the role of these progenitor cells in chronic atherosclerosis has not been defined. Using an AdvSca1-SM cell lineage tracing model, scRNA-Seq, flow cytometry, and histological approaches, we confirmed that AdvSca1-SM-derived cells localized throughout the vessel wall and atherosclerotic plaques, where they primarily differentiated into fibroblasts, smooth muscle cells (SMC), or remained in a stem-like state. Krüppel-like factor 4 (Klf4) knockout specifically in AdvSca1-SM cells induced transition to a more collagen-enriched fibroblast phenotype compared with WT mice. Additionally, Klf4 deletion drastically modified the phenotypes of non-AdvSca1-SM-derived cells, resulting in more contractile SMC and atheroprotective macrophages. Functionally, overall plaque burden was not altered with Klf4 deletion, but multiple indices of plaque composition complexity, including necrotic core area, macrophage accumulation, and fibrous cap thickness, were reduced. Collectively, these data support that modulation of AdvSca1-SM cells through KLF4 depletion confers increased protection from the development of potentially unstable atherosclerotic plaques.
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Affiliation(s)
- Allison M. Dubner
- Department of Medicine, Division of Renal Diseases and Hypertension
- Integrated Physiology PhD Program
| | - Sizhao Lu
- Department of Medicine, Division of Renal Diseases and Hypertension
- School of Medicine, Consortium for Fibrosis Research and Translation
| | - Austin J. Jolly
- Department of Medicine, Division of Renal Diseases and Hypertension
- Medical Scientist Training Program, University of Colorado School of Medicine, Anschutz Medical Campus, Aurora, Colorado, USA
| | - Keith A. Strand
- Department of Medicine, Division of Renal Diseases and Hypertension
| | - Marie F. Mutryn
- Department of Medicine, Division of Renal Diseases and Hypertension
| | - Tyler Hinthorn
- Department of Medicine, Division of Renal Diseases and Hypertension
- Biomedical Sciences and Biotechnology MS program, University of Colorado Graduate School, Anschutz Medical Campus, Aurora, Colorado, USA
| | - Tysen Noble
- Department of Medicine, Division of Renal Diseases and Hypertension
- Biomedical Sciences and Biotechnology MS program, University of Colorado Graduate School, Anschutz Medical Campus, Aurora, Colorado, USA
| | - Raphael A. Nemenoff
- Department of Medicine, Division of Renal Diseases and Hypertension
- School of Medicine, Consortium for Fibrosis Research and Translation
| | - Karen S. Moulton
- Department of Medicine, Division of Cardiology, University of Colorado School of Medicine, Anschutz Medical Campus, Aurora, Colorado, USA
| | - Mark W. Majesky
- Center for Developmental Biology & Regenerative Medicine, Seattle Children’s Research Institute, Seattle, Washington, USA
- Departments of Pediatrics, Laboratory Medicine & and Pathology, University of Washington, Seattle, Washington, USA
| | - Mary C.M. Weiser-Evans
- Department of Medicine, Division of Renal Diseases and Hypertension
- Integrated Physiology PhD Program
- School of Medicine, Consortium for Fibrosis Research and Translation
- Medical Scientist Training Program, University of Colorado School of Medicine, Anschutz Medical Campus, Aurora, Colorado, USA
- Cardiovascular Pulmonary Research Program, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
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9
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Liao G, Liu W, Dai Y, Shi X, Liu Y, Li D, Xu T. Beneficial effects of flavonoids on animal models of atherosclerosis: A systematic review and meta-analysis. iScience 2023; 26:108337. [PMID: 38026172 PMCID: PMC10665821 DOI: 10.1016/j.isci.2023.108337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 09/07/2023] [Accepted: 10/23/2023] [Indexed: 12/01/2023] Open
Abstract
Atherosclerosis is the main cause of cardiovascular diseases that seriously endanger human health. The existing treatment drugs are effective, but they have some side effects. Accumulating evidence suggests that flavonoids have attracted wide attention due to their multiple cardioprotective effects and fewer side effects. PubMed, Web of Science database, Embase, and Cochrane Library were searched for studies evaluating the effects of flavonoids against atherosclerosis. 119 studies published from August 1954 to April 2023 were included. Random-effects models were performed for synthesis. Compared with the control group, flavonoids significantly reduced longitudinal and cross-sectional plaque area. The findings indicated that flavonoids significantly reduced the concentrations of serum TC, TG, and LDL-C and increased serum HDL-C concentrations. Besides, flavonoids reduced the levels of circulating pro-inflammatory factors, including TNF-α, IL-1β, and IL-6, and increased the serum IL-10 level. This study provides evidence for the potential cardiovascular benefits of flavonoids.
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Affiliation(s)
- Gege Liao
- Institute of Cardiovascular Disease Research, Xuzhou Medical University, Xuzhou, China
| | - Wanlu Liu
- Institute of Cardiovascular Disease Research, Xuzhou Medical University, Xuzhou, China
| | - Yiming Dai
- Institute of Cardiovascular Disease Research, Xuzhou Medical University, Xuzhou, China
| | - Xiangxiang Shi
- Department of Cardiology, the Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Yang Liu
- Institute of Cardiovascular Disease Research, Xuzhou Medical University, Xuzhou, China
| | - Dongye Li
- Institute of Cardiovascular Disease Research, Xuzhou Medical University, Xuzhou, China
| | - Tongda Xu
- Department of Cardiology, the Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
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10
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Zang Y, Liu S, Rao Z, Wang Y, Zhang B, Li H, Cao Y, Zhou J, Shen Z, Duan S, He D, Xu H. Retinoid X receptor gamma dictates the activation threshold of group 2 innate lymphoid cells and limits type 2 inflammation in the small intestine. Immunity 2023; 56:2542-2554.e7. [PMID: 37714152 DOI: 10.1016/j.immuni.2023.08.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 06/18/2023] [Accepted: 08/22/2023] [Indexed: 09/17/2023]
Abstract
Group 2 innate lymphoid cells (ILC2s) are crucial in promoting type 2 inflammation that contributes to both anti-parasite immunity and allergic diseases. However, the molecular checkpoints in ILC2s that determine whether to immediately launch a proinflammatory response are unknown. Here, we found that retinoid X receptor gamma (Rxrg) was highly expressed in small intestinal ILC2s and rapidly suppressed by alarmin cytokines. Genetic deletion of Rxrg did not impact ILC2 development but facilitated ILC2 responses and the tissue inflammation induced by alarmins. Mechanistically, RXRγ maintained the expression of its target genes that support intracellular cholesterol efflux, which in turn reduce ILC2 proliferation. Furthermore, RXRγ expression prevented ILC2 response to mild stimulations, including low doses of alarmin cytokine and mechanical skin injury. Together, we propose that RXRγ expression and its mediated lipid metabolic states function as a cell-intrinsic checkpoint that confers the threshold of ILC2 activation in the small intestine.
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Affiliation(s)
- Yang Zang
- School of Basic Medical Sciences, Fudan University, Shanghai 200433, China; Key Laboratory of Growth Regulation and Translational Research of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou 310024, Zhejiang, China; Center for Infectious Disease Research, Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou 310024, Zhejiang, China; Laboratory of Systems Immunology, Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou 310024, Zhejiang, China
| | - Shaorui Liu
- Key Laboratory of Growth Regulation and Translational Research of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou 310024, Zhejiang, China; Center for Infectious Disease Research, Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou 310024, Zhejiang, China; Laboratory of Systems Immunology, Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou 310024, Zhejiang, China
| | - Zebing Rao
- Key Laboratory of Growth Regulation and Translational Research of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou 310024, Zhejiang, China; Center for Infectious Disease Research, Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou 310024, Zhejiang, China; Laboratory of Systems Immunology, Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou 310024, Zhejiang, China
| | - Yinsheng Wang
- Key Laboratory of Growth Regulation and Translational Research of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou 310024, Zhejiang, China; Center for Infectious Disease Research, Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou 310024, Zhejiang, China; Laboratory of Systems Immunology, Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou 310024, Zhejiang, China
| | - Boya Zhang
- Key Laboratory of Growth Regulation and Translational Research of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou 310024, Zhejiang, China; Center for Infectious Disease Research, Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou 310024, Zhejiang, China; Laboratory of Systems Immunology, Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou 310024, Zhejiang, China
| | - Hui Li
- Key Laboratory of Growth Regulation and Translational Research of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou 310024, Zhejiang, China; Center for Infectious Disease Research, Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou 310024, Zhejiang, China; Laboratory of Systems Immunology, Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou 310024, Zhejiang, China
| | - Yingjiao Cao
- Tianjin Institute of Immunology, Key Laboratory of Immune Microenvironment and Disease of the Ministry of Education, The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Department of Immunology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin 300070, China
| | - Jie Zhou
- Tianjin Institute of Immunology, Key Laboratory of Immune Microenvironment and Disease of the Ministry of Education, The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Department of Immunology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin 300070, China
| | - Zhuxia Shen
- Laboratory of Oral Microbiota and Systemic Diseases, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai 200125, China
| | - Shengzhong Duan
- Laboratory of Oral Microbiota and Systemic Diseases, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai 200125, China
| | - Danyang He
- Key Laboratory of Growth Regulation and Translational Research of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou 310024, Zhejiang, China; Center for Infectious Disease Research, Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou 310024, Zhejiang, China; Laboratory of Neuroimmunology, Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou 310024, Zhejiang, China
| | - Heping Xu
- Key Laboratory of Growth Regulation and Translational Research of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou 310024, Zhejiang, China; Center for Infectious Disease Research, Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou 310024, Zhejiang, China; Laboratory of Systems Immunology, Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou 310024, Zhejiang, China.
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11
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Xue S, Su Z, Liu D. Immunometabolism and immune response regulate macrophage function in atherosclerosis. Ageing Res Rev 2023; 90:101993. [PMID: 37379970 DOI: 10.1016/j.arr.2023.101993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Accepted: 06/23/2023] [Indexed: 06/30/2023]
Abstract
Macrophages are crucial in the progression of atherosclerotic cardiovascular disease (ASCVD). In the atherosclerotic lesions, macrophages play a central role in maintaining inflammatory response, promoting plaque development, and facilitating thrombosis. Increasing studies indicate that metabolic reprogramming and immune response mediate macrophage functional changes in all stages of atherosclerosis. In this review article, we explain how metabolic changes in glycolysis, oxidative phosphorylation, the tricarboxylic acid cycle, fatty acid synthesis, fatty acid oxidation, and cholesterol metabolism regulate macrophage function in atherosclerosis. We discuss how immune response to oxidized lipids regulate macrophage function in atherosclerosis. Additionally, we explore how abnormal metabolism leads to macrophage mitochondrial dysfunction in atherosclerosis.
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Affiliation(s)
- Sheng Xue
- Institute of Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao 266003 China.
| | - Zhe Su
- Institute of Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao 266003 China
| | - Dacheng Liu
- Institute of Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao 266003 China
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12
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Zhu L, Li H, Li J, Zhong Y, Wu S, Yan M, Ni S, Zhang K, Wang G, Qu K, Yang D, Qin X, Wu W. Biomimetic nanoparticles to enhance the reverse cholesterol transport for selectively inhibiting development into foam cell in atherosclerosis. J Nanobiotechnology 2023; 21:307. [PMID: 37644442 PMCID: PMC10463892 DOI: 10.1186/s12951-023-02040-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 07/31/2023] [Indexed: 08/31/2023] Open
Abstract
A disorder of cholesterol homeostasis is one of the main initiating factors in the progression of atherosclerosis (AS). Metabolism and removal of excess cholesterol facilitates the prevention of foam cell formation. However, the failure of treatment with drugs (e.g. methotrexate, MTX) to effectively regulate progression of disease may be related to the limited drug bioavailability and rapid clearance by immune system. Thus, based on the inflammatory lesion "recruitment" properties of macrophages, MTX nanoparticles (MTX NPs) camouflaged with macrophage membranes (MM@MTX NPs) were constructed for the target to AS plaques. MM@MTX NPs exhibited a uniform hydrodynamic size around ~ 360 nm and controlled drug release properties (~ 72% at 12 h). After the macrophage membranes (MM) functionalized "homing" target delivery to AS plaques, MM@MTX NPs improved the solubility of cholesterol by the functionalized β-cyclodextrin (β-CD) component and significantly elevate cholesterol efflux by the loaded MTX mediated the increased expression levels of ABCA1, SR-B1, CYP27A1, resulting in efficiently inhibiting the formation of foam cells. Furthermore, MM@MTX NPs could significantly reduce the area of plaque, aortic plaque and cholesterol crystals deposition in ApoE-/- mice and exhibited biocompatibility. It is suggested that MM@MTX NPs were a safe and efficient therapeutic platform for AS.
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Affiliation(s)
- Li Zhu
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400044, China
| | - Hongjiao Li
- School and Hospital of Stomatology, Chongqing Medical University, Chongqing, 404100, China
| | - Jiyu Li
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400044, China
| | - Yuan Zhong
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400044, China
| | - Shuai Wu
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400044, China
| | - Meng Yan
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400044, China
| | - Sheng Ni
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400044, China
| | - Kun Zhang
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400044, China
- Chongqing University, Three Gorges Hospital, Chongqing, 404000, China
| | - Guixue Wang
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400044, China
- Jin Feng Laboratory, Chongqing, 401329, China
| | - Kai Qu
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400044, China.
- Chongqing University, Three Gorges Hospital, Chongqing, 404000, China.
| | - Deqin Yang
- School and Hospital of Stomatology, Chongqing Medical University, Chongqing, 404100, China.
| | - Xian Qin
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400044, China.
- Chongqing University, Three Gorges Hospital, Chongqing, 404000, China.
| | - Wei Wu
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400044, China.
- Jin Feng Laboratory, Chongqing, 401329, China.
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13
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Montaño-Samaniego M, Sánchez-Cedillo J, Lucas-González A, Bravo-Estupiñan DM, Alarcón-Hernández E, Rivera-Gutiérrez S, Balderas-López JA, Ibáñez-Hernández M. Targeted Expression to Liver of an antimiR-33 Sponge as a Gene Therapy Strategy against Hypercholesterolemia: In Vitro Study. Curr Issues Mol Biol 2023; 45:7043-7057. [PMID: 37754229 PMCID: PMC10527677 DOI: 10.3390/cimb45090445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 08/12/2023] [Accepted: 08/17/2023] [Indexed: 09/28/2023] Open
Abstract
Atherosclerosis is the leading cause of cardiovascular diseases in Mexico and worldwide. The membrane transporters ABCA1 and ABCG1 are involved in the reverse transport of cholesterol and stimulate the HDL synthesis in hepatocytes, therefore the deficiency of these transporters promotes the acceleration of atherosclerosis. MicroRNA-33 (miR-33) plays an important role in lipid metabolism and exerts a negative regulation on the transporters ABCA1 and ABCG1. It is known that by inhibiting the function of miR-33 with antisense RNA, HDL levels increase and atherogenic risk decreases. Therefore, in this work, a genetic construct, pPEPCK-antimiR-33-IRES2-EGFP, containing a specific antimiR-33 sponge with two binding sites for miR-33 governed under the PEPCK promoter was designed, constructed, and characterized, the identity of which was confirmed by enzymatic restriction, PCR, and sequencing. Hep G2 and Hek 293 FT cell lines, as well as a mouse hepatocyte primary cell culture were transfected with this plasmid construction showing expression specificity of the PEPCK promoter in hepatic cells. An analysis of the relative expression of miR-33 target messengers showed that the antimiR-33 sponge indirectly induces the expression of its target messengers (ABCA1 and ABCG1). This strategy could open new specific therapeutic options for hypercholesterolemia and atherosclerosis, by blocking the miR-33 specifically in hepatocytes.
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Affiliation(s)
- Mariela Montaño-Samaniego
- Laboratorio de Terapia Génica, Departamento de Bioquímica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City 11340, Mexico; (M.M.-S.); (J.S.-C.); (A.L.-G.); (D.M.B.-E.)
- Laboratorio de Técnicas Fototérmicas, Departamento de Ciencias Básicas, Unidad Politécnica Interdisciplinaria de Biotecnología, Instituto Politécnico Nacional, Mexico City 07340, Mexico;
| | - Jorge Sánchez-Cedillo
- Laboratorio de Terapia Génica, Departamento de Bioquímica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City 11340, Mexico; (M.M.-S.); (J.S.-C.); (A.L.-G.); (D.M.B.-E.)
| | - Amellalli Lucas-González
- Laboratorio de Terapia Génica, Departamento de Bioquímica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City 11340, Mexico; (M.M.-S.); (J.S.-C.); (A.L.-G.); (D.M.B.-E.)
| | - Diana M. Bravo-Estupiñan
- Laboratorio de Terapia Génica, Departamento de Bioquímica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City 11340, Mexico; (M.M.-S.); (J.S.-C.); (A.L.-G.); (D.M.B.-E.)
- Laboratorio de Quimiosensibilidad Tumoral, Facultad de Microbiología, Universidad de Costa Rica, San Jose 11501-2060, Costa Rica
| | - Ernesto Alarcón-Hernández
- Laboratorio de Genética Molecular, Departamento de Bioquímica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City 11340, Mexico;
| | - Sandra Rivera-Gutiérrez
- Laboratorio de Microbiología Molecular, Departamento de Microbiología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City 11340, Mexico;
| | - José Abraham Balderas-López
- Laboratorio de Técnicas Fototérmicas, Departamento de Ciencias Básicas, Unidad Politécnica Interdisciplinaria de Biotecnología, Instituto Politécnico Nacional, Mexico City 07340, Mexico;
| | - Miguel Ibáñez-Hernández
- Laboratorio de Terapia Génica, Departamento de Bioquímica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City 11340, Mexico; (M.M.-S.); (J.S.-C.); (A.L.-G.); (D.M.B.-E.)
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14
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Cao D, Khan Z, Li X, Saito S, Bernstein EA, Victor AR, Ahmed F, Hoshi AO, Veiras LC, Shibata T, Che M, Cai L, Yamashita M, Temel RE, Giani JF, Luthringer DJ, Divakaruni AS, Okwan-Duodu D, Bernstein KE. Macrophage angiotensin-converting enzyme reduces atherosclerosis by increasing peroxisome proliferator-activated receptor α and fundamentally changing lipid metabolism. Cardiovasc Res 2023; 119:1825-1841. [PMID: 37225143 PMCID: PMC10681664 DOI: 10.1093/cvr/cvad082] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 03/21/2023] [Accepted: 04/05/2023] [Indexed: 05/26/2023] Open
Abstract
AIMS The metabolic failure of macrophages to adequately process lipid is central to the aetiology of atherosclerosis. Here, we examine the role of macrophage angiotensin-converting enzyme (ACE) in a mouse model of PCSK9-induced atherosclerosis. METHODS AND RESULTS Atherosclerosis in mice was induced with AAV-PCSK9 and a high-fat diet. Animals with increased macrophage ACE (ACE 10/10 mice) have a marked reduction in atherosclerosis vs. WT mice. Macrophages from both the aorta and peritoneum of ACE 10/10 express increased PPARα and have a profoundly altered phenotype to process lipids characterized by higher levels of the surface scavenger receptor CD36, increased uptake of lipid, increased capacity to transport long chain fatty acids into mitochondria, higher oxidative metabolism and lipid β-oxidation as determined using 13C isotope tracing, increased cell ATP, increased capacity for efferocytosis, increased concentrations of the lipid transporters ABCA1 and ABCG1, and increased cholesterol efflux. These effects are mostly independent of angiotensin II. Human THP-1 cells, when modified to express more ACE, increase expression of PPARα, increase cell ATP and acetyl-CoA, and increase cell efferocytosis. CONCLUSION Increased macrophage ACE expression enhances macrophage lipid metabolism, cholesterol efflux, efferocytosis, and it reduces atherosclerosis. This has implications for the treatment of cardiovascular disease with angiotensin II receptor antagonists vs. ACE inhibitors.
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Affiliation(s)
- DuoYao Cao
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, 8700 Beverly Blvd, Los Angeles, CA 90048, USA
| | - Zakir Khan
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, 8700 Beverly Blvd, Los Angeles, CA 90048, USA
- Department of Pathology and Laboratory Medicine, Cedars-Sinai Medical Center, 8700 Beverly Blvd, Los Angeles, CA 90048, USA
| | - Xiaomo Li
- Department of Pathology and Laboratory Medicine, Cedars-Sinai Medical Center, 8700 Beverly Blvd, Los Angeles, CA 90048, USA
| | - Suguru Saito
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, 8700 Beverly Blvd, Los Angeles, CA 90048, USA
| | - Ellen A Bernstein
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, 8700 Beverly Blvd, Los Angeles, CA 90048, USA
| | - Aaron R Victor
- Department of Pathology and Laboratory Medicine, Cedars-Sinai Medical Center, 8700 Beverly Blvd, Los Angeles, CA 90048, USA
| | - Faizan Ahmed
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, 8700 Beverly Blvd, Los Angeles, CA 90048, USA
| | - Aoi O Hoshi
- Department of Pathology and Laboratory Medicine, Cedars-Sinai Medical Center, 8700 Beverly Blvd, Los Angeles, CA 90048, USA
| | - Luciana C Veiras
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, 8700 Beverly Blvd, Los Angeles, CA 90048, USA
| | - Tomohiro Shibata
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, 8700 Beverly Blvd, Los Angeles, CA 90048, USA
| | - Mingtian Che
- Biobank and Pathology Shared Resource, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Lei Cai
- Saha Cardiovascular Research Center and Department of Physiology, University of Kentucky, Lexington, KY 40536, USA
| | - Michifumi Yamashita
- Saha Cardiovascular Research Center and Department of Physiology, University of Kentucky, Lexington, KY 40536, USA
| | - Ryan E Temel
- Saha Cardiovascular Research Center and Department of Physiology, University of Kentucky, Lexington, KY 40536, USA
| | - Jorge F Giani
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, 8700 Beverly Blvd, Los Angeles, CA 90048, USA
- Department of Pathology and Laboratory Medicine, Cedars-Sinai Medical Center, 8700 Beverly Blvd, Los Angeles, CA 90048, USA
| | - Daniel J Luthringer
- Department of Pathology and Laboratory Medicine, Cedars-Sinai Medical Center, 8700 Beverly Blvd, Los Angeles, CA 90048, USA
| | - Ajit S Divakaruni
- Department of Molecular and Medical Pharmacology, UCLA David Geffen School of Medicine, Los Angeles, CA 90095, USA
| | - Derick Okwan-Duodu
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, 8700 Beverly Blvd, Los Angeles, CA 90048, USA
- Department of Pathology and Laboratory Medicine, Cedars-Sinai Medical Center, 8700 Beverly Blvd, Los Angeles, CA 90048, USA
| | - Kenneth E Bernstein
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, 8700 Beverly Blvd, Los Angeles, CA 90048, USA
- Department of Pathology and Laboratory Medicine, Cedars-Sinai Medical Center, 8700 Beverly Blvd, Los Angeles, CA 90048, USA
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15
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Dubner AM, Lu S, Jolly AJ, Strand KA, Mutryn MF, Hinthorn T, Noble T, Nemenoff RA, Moulton KS, Majesky MW, Weiser-Evans MCM. Smooth muscle-derived adventitial progenitor cells promote key cell type transitions controlling plaque stability in atherosclerosis in a Klf4-dependent manner. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.07.18.549539. [PMID: 37503181 PMCID: PMC10370085 DOI: 10.1101/2023.07.18.549539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/29/2023]
Abstract
We previously established that vascular smooth muscle-derived adventitial progenitor cells (AdvSca1-SM) preferentially differentiate into myofibroblasts and contribute to fibrosis in response to acute vascular injury. However, the role of these progenitor cells in chronic atherosclerosis has not been defined. Using an AdvSca1-SM lineage tracing model, scRNA-Seq, flow cytometry, and histological approaches, we confirmed that AdvSca1-SM cells localize throughout the vessel wall and atherosclerotic plaques, where they primarily differentiate into fibroblasts, SMCs, or remain in a stem-like state. Klf4 knockout specifically in AdvSca1-SM cells induced transition to a more collagen-enriched myofibroblast phenotype compared to WT mice. Additionally, Klf4 depletion drastically modified the phenotypes of non-AdvSca1-SM-derived cells, resulting in more contractile SMCs and atheroprotective macrophages. Functionally, overall plaque burden was not altered with Klf4 depletion, but multiple indices of plaque vulnerability were reduced. Collectively, these data support that modulating the AdvSca1-SM population confers increased protection from the development of unstable atherosclerotic plaques.
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Affiliation(s)
- Allison M Dubner
- Department of Medicine, Division of Renal Diseases and Hypertension, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
- Integrated Physiology PhD Program, University of Colorado School of Medicine, Anschutz Medical Campus, Aurora, CO, USA
| | - Sizhao Lu
- Department of Medicine, Division of Renal Diseases and Hypertension, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
- School of Medicine, Consortium for Fibrosis Research and Translation, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Austin J Jolly
- Department of Medicine, Division of Renal Diseases and Hypertension, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
- Medical Scientist Training Program, University of Colorado School of Medicine, Anschutz Medical Campus, Aurora, CO, USA
| | - Keith A Strand
- Department of Medicine, Division of Renal Diseases and Hypertension, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Marie F Mutryn
- Department of Medicine, Division of Renal Diseases and Hypertension, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Tyler Hinthorn
- Department of Medicine, Division of Renal Diseases and Hypertension, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
- Biomedical Sciences and Biotechnology MS program, University of Colorado Graduate School, Anschutz Medical Campus, Aurora, CO, USA
| | - Tysen Noble
- Department of Medicine, Division of Renal Diseases and Hypertension, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
- Biomedical Sciences and Biotechnology MS program, University of Colorado Graduate School, Anschutz Medical Campus, Aurora, CO, USA
| | - Raphael A Nemenoff
- Department of Medicine, Division of Renal Diseases and Hypertension, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
- School of Medicine, Consortium for Fibrosis Research and Translation, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Karen S Moulton
- Department of Medicine, Division of Cardiology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Mark W Majesky
- Center for Developmental Biology & Regenerative Medicine, Seattle Children’s Research Institute, Seattle, WA 98101
- Departments of Pediatrics, Laboratory Medicine & and Pathology, University of Washington, Seattle, WA, 98195
| | - Mary CM Weiser-Evans
- Department of Medicine, Division of Renal Diseases and Hypertension, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
- Integrated Physiology PhD Program, University of Colorado School of Medicine, Anschutz Medical Campus, Aurora, CO, USA
- Medical Scientist Training Program, University of Colorado School of Medicine, Anschutz Medical Campus, Aurora, CO, USA
- School of Medicine, Consortium for Fibrosis Research and Translation, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
- Cardiovascular Pulmonary Research Program, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
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16
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Sachse M, Tual-Chalot S, Ciliberti G, Amponsah-Offeh M, Stamatelopoulos K, Gatsiou A, Stellos K. RNA-binding proteins in vascular inflammation and atherosclerosis. Atherosclerosis 2023; 374:55-73. [PMID: 36759270 DOI: 10.1016/j.atherosclerosis.2023.01.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Revised: 12/01/2022] [Accepted: 01/12/2023] [Indexed: 01/19/2023]
Abstract
Atherosclerotic cardiovascular disease (ASCVD) remains the major cause of premature death and disability worldwide, even when patients with an established manifestation of atherosclerotic heart disease are optimally treated according to the clinical guidelines. Apart from the epigenetic control of transcription of the genetic information to messenger RNAs (mRNAs), gene expression is tightly controlled at the post-transcriptional level before the initiation of translation. Although mRNAs are traditionally perceived as the messenger molecules that bring genetic information from the nuclear DNA to the cytoplasmic ribosomes for protein synthesis, emerging evidence suggests that processes controlling RNA metabolism, driven by RNA-binding proteins (RBPs), affect cellular function in health and disease. Over the recent years, vascular endothelial cell, smooth muscle cell and immune cell RBPs have emerged as key co- or post-transcriptional regulators of several genes related to vascular inflammation and atherosclerosis. In this review, we provide an overview of cell-specific function of RNA-binding proteins involved in all stages of ASCVD and how this knowledge may be used for the development of novel precision medicine therapeutics.
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Affiliation(s)
- Marco Sachse
- Department of Cardiovascular Research, European Center for Angioscience (ECAS), Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany; Department of Cardiovascular Surgery, University Heart Center, University Hospital Hamburg Eppendorf, Hamburg, Germany
| | - Simon Tual-Chalot
- Biosciences Institute, Vascular Biology and Medicine Theme, Faculty of Medical Sciences, Newcastle University, Newcastle Upon Tyne, UK.
| | - Giorgia Ciliberti
- Department of Cardiovascular Research, European Center for Angioscience (ECAS), Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany; German Centre for Cardiovascular Research (Deutsches Zentrum für Herz-Kreislauf-Forschung, DZHK), Heidelberg/Mannheim Partner Site, Mannheim, Germany
| | - Michael Amponsah-Offeh
- Department of Cardiovascular Research, European Center for Angioscience (ECAS), Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany; German Centre for Cardiovascular Research (Deutsches Zentrum für Herz-Kreislauf-Forschung, DZHK), Heidelberg/Mannheim Partner Site, Mannheim, Germany
| | - Kimon Stamatelopoulos
- Department of Clinical Therapeutics, Alexandra Hospital, National and Kapodistrian University of Athens School of Medicine, Athens, Greece
| | - Aikaterini Gatsiou
- Biosciences Institute, Vascular Biology and Medicine Theme, Faculty of Medical Sciences, Newcastle University, Newcastle Upon Tyne, UK
| | - Konstantinos Stellos
- Department of Cardiovascular Research, European Center for Angioscience (ECAS), Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany; Biosciences Institute, Vascular Biology and Medicine Theme, Faculty of Medical Sciences, Newcastle University, Newcastle Upon Tyne, UK; German Centre for Cardiovascular Research (Deutsches Zentrum für Herz-Kreislauf-Forschung, DZHK), Heidelberg/Mannheim Partner Site, Mannheim, Germany; Department of Cardiology, University Hospital Mannheim, Heidelberg University, Manheim, Germany.
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17
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Guilbaud E, Barouillet T, Ilie M, Borowczyk C, Ivanov S, Sarrazy V, Vaillant N, Ayrault M, Castiglione A, Rignol G, Brest P, Bazioti V, Zaitsev K, Lebrigand K, Dussaud S, Magnone V, Bertolotto C, Marchetti S, Irondelle M, Goldberg I, Huby T, Westerterp M, Gautier EL, Mari B, Barbry P, Hofman P, Yvan-Charvet L. Cholesterol efflux pathways hinder KRAS-driven lung tumor progenitor cell expansion. Cell Stem Cell 2023; 30:800-817.e9. [PMID: 37267915 DOI: 10.1016/j.stem.2023.05.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 04/13/2023] [Accepted: 05/04/2023] [Indexed: 06/04/2023]
Abstract
Cholesterol efflux pathways could be exploited in tumor biology to unravel cancer vulnerabilities. A mouse model of lung-tumor-bearing KRASG12D mutation with specific disruption of cholesterol efflux pathways in epithelial progenitor cells promoted tumor growth. Defective cholesterol efflux in epithelial progenitor cells governed their transcriptional landscape to support their expansion and create a pro-tolerogenic tumor microenvironment (TME). Overexpression of the apolipoprotein A-I, to raise HDL levels, protected these mice from tumor development and dire pathologic consequences. Mechanistically, HDL blunted a positive feedback loop between growth factor signaling pathways and cholesterol efflux pathways that cancer cells hijack to expand. Cholesterol removal therapy with cyclodextrin reduced tumor burden in progressing tumor by suppressing the proliferation and expansion of epithelial progenitor cells of tumor origin. Local and systemic perturbations of cholesterol efflux pathways were confirmed in human lung adenocarcinoma (LUAD). Our results position cholesterol removal therapy as a putative metabolic target in lung cancer progenitor cells.
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Affiliation(s)
- Emma Guilbaud
- Institut National de la Santé et de la Recherche Médicale (Inserm) U1065, Université Côte d'Azur, Centre Méditerranéen de Médecine Moléculaire (C3M), Atip-Avenir, Fédération Hospitalo-Universitaire (FHU) OncoAge, 06204 Nice, France; Department of Radiation Oncology, Weill Cornell Medical College, New York, NY, USA.
| | - Thibault Barouillet
- Institut National de la Santé et de la Recherche Médicale (Inserm) U1065, Université Côte d'Azur, Centre Méditerranéen de Médecine Moléculaire (C3M), Atip-Avenir, Fédération Hospitalo-Universitaire (FHU) OncoAge, 06204 Nice, France
| | - Marius Ilie
- Institute of Research on Cancer and Aging of Nice (IRCAN), Inserm U1081, CNRS UMR7284, Laboratory of Clinical and Experimental Pathology, Hospital-Integrated Biobank (BB-0033-00025), Université Côte d'Azur, CHU de Nice, University Hospital Federation OncoAge, 06107 Nice, France
| | - Coraline Borowczyk
- Institut National de la Santé et de la Recherche Médicale (Inserm) U1065, Université Côte d'Azur, Centre Méditerranéen de Médecine Moléculaire (C3M), Atip-Avenir, Fédération Hospitalo-Universitaire (FHU) OncoAge, 06204 Nice, France
| | - Stoyan Ivanov
- Institut National de la Santé et de la Recherche Médicale (Inserm) U1065, Université Côte d'Azur, Centre Méditerranéen de Médecine Moléculaire (C3M), Atip-Avenir, Fédération Hospitalo-Universitaire (FHU) OncoAge, 06204 Nice, France
| | - Vincent Sarrazy
- Institut National de la Santé et de la Recherche Médicale (Inserm) U1065, Université Côte d'Azur, Centre Méditerranéen de Médecine Moléculaire (C3M), Atip-Avenir, Fédération Hospitalo-Universitaire (FHU) OncoAge, 06204 Nice, France
| | - Nathalie Vaillant
- Institut National de la Santé et de la Recherche Médicale (Inserm) U1065, Université Côte d'Azur, Centre Méditerranéen de Médecine Moléculaire (C3M), Atip-Avenir, Fédération Hospitalo-Universitaire (FHU) OncoAge, 06204 Nice, France
| | - Marion Ayrault
- Institut National de la Santé et de la Recherche Médicale (Inserm) U1065, Université Côte d'Azur, Centre Méditerranéen de Médecine Moléculaire (C3M), Atip-Avenir, Fédération Hospitalo-Universitaire (FHU) OncoAge, 06204 Nice, France
| | - Alexia Castiglione
- Institut National de la Santé et de la Recherche Médicale (Inserm) U1065, Université Côte d'Azur, Centre Méditerranéen de Médecine Moléculaire (C3M), Atip-Avenir, Fédération Hospitalo-Universitaire (FHU) OncoAge, 06204 Nice, France
| | - Guylène Rignol
- Institut National de la Santé et de la Recherche Médicale (Inserm) U1065, Université Côte d'Azur, Centre Méditerranéen de Médecine Moléculaire (C3M), Atip-Avenir, Fédération Hospitalo-Universitaire (FHU) OncoAge, 06204 Nice, France
| | - Patrick Brest
- Institute of Research on Cancer and Aging of Nice (IRCAN), Inserm U1081, CNRS UMR7284, Laboratory of Clinical and Experimental Pathology, Hospital-Integrated Biobank (BB-0033-00025), Université Côte d'Azur, CHU de Nice, University Hospital Federation OncoAge, 06107 Nice, France
| | - Venetia Bazioti
- Department of Pediatrics, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Konstantin Zaitsev
- Computer Technologies Department, ITMO University, Saint Petersburg, Russia
| | - Kevin Lebrigand
- Université Côte d'Azur, Institut de Pharmacologie Moléculaire et Cellulaire (IPMC), CNRS UMR7275, FHU-OncoAge, Nice Sophia-Antipolis, France
| | | | - Virginie Magnone
- Université Côte d'Azur, Institut de Pharmacologie Moléculaire et Cellulaire (IPMC), CNRS UMR7275, FHU-OncoAge, Nice Sophia-Antipolis, France
| | - Corine Bertolotto
- Institut National de la Santé et de la Recherche Médicale (Inserm) U1065, Université Côte d'Azur, Centre Méditerranéen de Médecine Moléculaire (C3M), Atip-Avenir, Fédération Hospitalo-Universitaire (FHU) OncoAge, 06204 Nice, France
| | - Sandrine Marchetti
- Institut National de la Santé et de la Recherche Médicale (Inserm) U1065, Université Côte d'Azur, Centre Méditerranéen de Médecine Moléculaire (C3M), Atip-Avenir, Fédération Hospitalo-Universitaire (FHU) OncoAge, 06204 Nice, France
| | - Marie Irondelle
- Institut National de la Santé et de la Recherche Médicale (Inserm) U1065, Université Côte d'Azur, Centre Méditerranéen de Médecine Moléculaire (C3M), Atip-Avenir, Fédération Hospitalo-Universitaire (FHU) OncoAge, 06204 Nice, France
| | - Ira Goldberg
- Division of Endocrinology, Diabetes and Metabolism, NYU Langone Medical Center, New York, NY, USA
| | - Thierry Huby
- Sorbonne Université, INSERM, UMR_S 1166 ICAN, 75013 Paris, France
| | - Marit Westerterp
- Department of Pediatrics, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | | | - Bernard Mari
- Université Côte d'Azur, Institut de Pharmacologie Moléculaire et Cellulaire (IPMC), CNRS UMR7275, FHU-OncoAge, Nice Sophia-Antipolis, France
| | - Pascal Barbry
- Université Côte d'Azur, Institut de Pharmacologie Moléculaire et Cellulaire (IPMC), CNRS UMR7275, FHU-OncoAge, Nice Sophia-Antipolis, France
| | - Paul Hofman
- Institute of Research on Cancer and Aging of Nice (IRCAN), Inserm U1081, CNRS UMR7284, Laboratory of Clinical and Experimental Pathology, Hospital-Integrated Biobank (BB-0033-00025), Université Côte d'Azur, CHU de Nice, University Hospital Federation OncoAge, 06107 Nice, France
| | - Laurent Yvan-Charvet
- Institut National de la Santé et de la Recherche Médicale (Inserm) U1065, Université Côte d'Azur, Centre Méditerranéen de Médecine Moléculaire (C3M), Atip-Avenir, Fédération Hospitalo-Universitaire (FHU) OncoAge, 06204 Nice, France.
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18
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Liu Y, Wang K, Yang S, Xue G, Lu L. Mulberry extract upregulates cholesterol efflux and inhibits p38 MAPK-NLRP3-mediated inflammation in foam cells. Food Sci Nutr 2023; 11:3141-3153. [PMID: 37324843 PMCID: PMC10261774 DOI: 10.1002/fsn3.3296] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Revised: 02/07/2023] [Accepted: 02/24/2023] [Indexed: 10/29/2023] Open
Abstract
The accumulation of foam cells in arterial intima and the accompanied chronic inflammation are considered major causes of neoatherosclerosis and restenosis. However, both the underlying mechanism and effective treatment for the disease are yet to be uncovered. In this study, we combined transcriptome profiling of restenosis artery tissue and bioinformatic analysis to reveal that NLRP3 inflammasome is markedly upregulated in restenosis and that several restenosis-related DEGs are also targets of mulberry extract, a natural dietary supplement used in traditional Chinese medicine. We demonstrated that mulberry extract suppresses the formation of ox-LDL-induced foam cells, possibly by upregulating the cholesterol efflux genes ABCA1 and ABCG1 to inhibit intracellular lipid accumulation. In addition, mulberry extract dampens NLRP3 inflammasome activation by stressing the MAPK signaling pathway. These findings unveil the therapeutic value of mulberry extract in neoatherosclerosis and restenosis treatment by regulating lipid metabolism and inflammatory response of foam cells.
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Affiliation(s)
- Yuting Liu
- Department of Vascular Surgery, Renji HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
| | - Kefan Wang
- Department of Immunology and Microbiology, Shanghai Institute of ImmunologyShanghai Jiao Tong University School of MedicineShanghaiChina
| | - Shuofei Yang
- Department of Vascular Surgery, Renji HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
| | - Guanhua Xue
- Department of Vascular Surgery, Renji HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
| | - Liming Lu
- Department of Immunology and Microbiology, Shanghai Institute of ImmunologyShanghai Jiao Tong University School of MedicineShanghaiChina
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19
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Yalcinkaya M, Fotakis P, Liu W, Endo-Umeda K, Dou H, Abramowicz S, Xiao T, Libby P, Wang N, Tall AR, Westerterp M. Cholesterol accumulation in macrophages drives NETosis in atherosclerotic plaques via IL-1β secretion. Cardiovasc Res 2023; 119:969-981. [PMID: 36537208 PMCID: PMC10153645 DOI: 10.1093/cvr/cvac189] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 10/04/2022] [Accepted: 11/04/2022] [Indexed: 12/24/2022] Open
Abstract
AIMS Neutrophil extracellular trap formation (NETosis) increases atherosclerotic plaque vulnerability and athero-thrombosis. However, mechanisms promoting NETosis during atherogenesis are poorly understood. We have shown that cholesterol accumulation due to myeloid cell deficiency of the cholesterol transporters ATP Binding Cassette A1 and G1 (ABCA1/G1) promotes NLRP3 inflammasome activation in macrophages and neutrophils and induces prominent NETosis in atherosclerotic plaques. We investigated whether NETosis is a cell-intrinsic effect in neutrophils or is mediated indirectly by cellular crosstalk from macrophages to neutrophils involving IL-1β. METHODS AND RESULTS We generated mice with neutrophil or macrophage-specific Abca1/g1 deficiency (S100A8CreAbca1fl/flAbcg1fl/fl or CX3CR1CreAbca1fl/flAbcg1fl/fl mice, respectively), and transplanted their bone marrow into low-density lipoprotein receptor knockout mice. We then fed the mice a cholesterol-rich diet. Macrophage, but not neutrophil Abca1/g1 deficiency activated inflammasomes in macrophages and neutrophils, reflected by caspase-1 cleavage, and induced NETosis in plaques. NETosis was suppressed by administering an interleukin (IL)-1β neutralizing antibody. The extent of NETosis in plaques correlated strongly with the degree of neutrophil accumulation, irrespective of blood neutrophil counts, and neutrophil accumulation was decreased by IL-1β antagonism. In vitro, IL-1β or media transferred from Abca1/g1-deficient macrophages increased NETosis in both control and Abca1/Abcg1 deficient neutrophils. This cell-extrinsic effect of IL-1β on NETosis was blocked by an NLRP3 inhibitor. CONCLUSION These studies establish a new link between inflammasome-mediated IL-1β production in macrophages and NETosis in atherosclerotic plaques. Macrophage-derived IL-1β appears to increase NETosis both by increasing neutrophil recruitment to plaques and by promoting neutrophil NLRP3 inflammasome activation.
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Affiliation(s)
- Mustafa Yalcinkaya
- Division of Molecular Medicine, Department of Medicine, Columbia University Irving Medical Center, 630 West 168 Street P&S 8-401, New York, NY 10032, USA
| | - Panagiotis Fotakis
- Division of Molecular Medicine, Department of Medicine, Columbia University Irving Medical Center, 630 West 168 Street P&S 8-401, New York, NY 10032, USA
| | - Wenli Liu
- Division of Molecular Medicine, Department of Medicine, Columbia University Irving Medical Center, 630 West 168 Street P&S 8-401, New York, NY 10032, USA
| | - Kaori Endo-Umeda
- Division of Molecular Medicine, Department of Medicine, Columbia University Irving Medical Center, 630 West 168 Street P&S 8-401, New York, NY 10032, USA
- Division of Biochemistry, Department of Biomedical Sciences, Nihon University School of Medicine, 30-1 Oyaguchi-kamicho, Itabashi-ku, Tokyo 173-8610, Japan
| | - Huijuan Dou
- Division of Molecular Medicine, Department of Medicine, Columbia University Irving Medical Center, 630 West 168 Street P&S 8-401, New York, NY 10032, USA
| | - Sandra Abramowicz
- Division of Molecular Medicine, Department of Medicine, Columbia University Irving Medical Center, 630 West 168 Street P&S 8-401, New York, NY 10032, USA
| | - Tong Xiao
- Division of Molecular Medicine, Department of Medicine, Columbia University Irving Medical Center, 630 West 168 Street P&S 8-401, New York, NY 10032, USA
| | - Peter Libby
- Department of Medicine, Cardiovascular Division, Brigham and Women’s Hospital, Harvard Medical School, 75 Francis Street, Boston, MA 02115, USA
| | - Nan Wang
- Division of Molecular Medicine, Department of Medicine, Columbia University Irving Medical Center, 630 West 168 Street P&S 8-401, New York, NY 10032, USA
| | - Alan R Tall
- Division of Molecular Medicine, Department of Medicine, Columbia University Irving Medical Center, 630 West 168 Street P&S 8-401, New York, NY 10032, USA
| | - Marit Westerterp
- Division of Molecular Medicine, Department of Medicine, Columbia University Irving Medical Center, 630 West 168 Street P&S 8-401, New York, NY 10032, USA
- Department of Pediatrics, University Medical Center Groningen, University of Groningen, Antonius Deusinglaan 1, 9713AV Groningen, The Netherlands
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20
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Lee SK, Kam EH, Cheon SY. Autophagy Enhancers Regulate Cholesterol-Induced Cytokine Secretion and Cytotoxicity in Macrophages. J Lipid Atheroscler 2023; 12:189-200. [PMID: 37265848 PMCID: PMC10232223 DOI: 10.12997/jla.2023.12.2.189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 04/13/2023] [Accepted: 05/03/2023] [Indexed: 06/03/2023] Open
Abstract
Objective Hypercholesterolaemia transforms macrophages into lipid-laden foam cells in circulation, which can activate the immune response. Compromised autophagy and inflammatory cytokines are involved in the pathogenesis and progression of metabolic diseases. The aim of this study was to identify the role of autophagy as a modulator of the inflammatory response and cytotoxicity in macrophages under hypercholesterolaemic conditions. Methods High cholesterol-induced cytokine secretion and alteration of autophagy-associated molecules were confirmed by cytokine array and western blot analysis, respectively. To confirm whether autophagic regulation affects high cholesterol-induced cytokine release and cytotoxicity, protein levels of autophagic molecules, cell viability, and cytotoxicity were measured in cultured macrophages treated autophagy enhancers. Results Cholesterol treatment increased cytokine secretion, cellular toxicity, and lactate dehydrogenase release in lipopolysaccharide (LPS)-primed macrophages. Concomitantly, altered levels of autophagy-related molecules were detected in LPS-primed macrophages under hypercholesterolaemic conditions. Treatment with autophagy enhancers reversed the secretion of cytokines, abnormally expressed autophagy-associated molecules, and cytotoxicity of LPS-primed macrophages. Conclusion Autophagy enhancers inhibit inflammatory cytokine secretion and reduce cytotoxicity under metabolic disturbances, such as hypercholesterolaemia. Modulation of autophagy may be a novel approach to control the inflammatory response observed in metabolic diseases.
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Affiliation(s)
- Su Kyoung Lee
- Department of Neurology, Yonsei University College of Medicine, Seoul, Korea
| | - Eun Hee Kam
- Department of Internal Medicine, Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Korea
| | - So Yeong Cheon
- Department of Biotechnology, College of Biomedical & Health Science, Konkuk University, Chungju, Korea
- Research Institute for Biomedical & Health Science, Konkuk University, Chungju, Korea
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21
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Liu S, Zhang Y, Zheng X, Wang Z, Wang P, Zhang M, Shen M, Bao Y, Li D. Sulforaphane Inhibits Foam Cell Formation and Atherosclerosis via Mechanisms Involving the Modulation of Macrophage Cholesterol Transport and the Related Phenotype. Nutrients 2023; 15:2117. [PMID: 37432260 DOI: 10.3390/nu15092117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 04/23/2023] [Accepted: 04/26/2023] [Indexed: 07/12/2023] Open
Abstract
Sulforaphane (SFN), an isothiocyanate, is one of the major dietary phytochemicals found in cruciferous vegetables. Many studies suggest that SFN can protect against cancer and cardiometabolic diseases. Despite the proposed systemic and local vascular protective mechanisms, SFN's potential to inhibit atherogenesis by targeting macrophages remains unknown. In this study, in high fat diet fed ApoE-deficient (ApoE-/-) mice, oral SFN treatment improved dyslipidemia and inhibited atherosclerotic plaque formation and the unstable phenotype, as demonstrated by reductions in the lesion areas in both the aortic sinus and whole aorta, percentages of necrotic cores, vascular macrophage infiltration and reactive oxygen species (ROS) generation. In THP-1-derived macrophages, preadministration SFN alleviated oxidized low-density lipoprotein (ox-LDL)-induced lipid accumulation, oxidative stress and mitochondrial injury. Moreover, a functional study revealed that peritoneal macrophages isolated from SFN-treated mice exhibited attenuated cholesterol influx and enhanced apolipoprotein A-I (apoA-I)- and high-density lipoprotein (HDL)-mediated cholesterol efflux. Mechanistic analysis revealed that SFN supplementation induced both intralesional and intraperitoneal macrophage phenotypic switching toward high expression of nuclear factor erythroid 2-related factor 2 (Nrf2), heme oxygenase-1 (HO-1) and ATP-binding cassette subfamily A/G member 1 (ABCA1/G1) and low expression of peroxisome proliferator-activated receptor γ (PPARγ) and cluster of differentiation 36 (CD36), which was further validated by the aortic protein expression. These results suggest that the regulation of macrophages' cholesterol transport and accumulation may be mainly responsible for SFN's potential atheroprotective properties, and the regulatory mechanisms might involve upregulating ABCA1/G1 and downregulating CD36 via the modulation of PPARγ and Nrf2.
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Affiliation(s)
- Shiyan Liu
- Department of Nutrition, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Guangzhou 510080, China
- Guangdong Engineering Technology Center of Nutrition Transformation, Guangzhou 510080, China
| | - Yuan Zhang
- Department of Geriatrics, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou 510150, China
| | - Xiangyu Zheng
- Department of Nutrition, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Guangzhou 510080, China
- Guangdong Engineering Technology Center of Nutrition Transformation, Guangzhou 510080, China
| | - Ziling Wang
- Department of Nutrition, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Guangzhou 510080, China
- Guangdong Engineering Technology Center of Nutrition Transformation, Guangzhou 510080, China
| | - Pan Wang
- Department of Nutrition, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Guangzhou 510080, China
- Guangdong Engineering Technology Center of Nutrition Transformation, Guangzhou 510080, China
| | - Mengdi Zhang
- Department of Nutrition, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Guangzhou 510080, China
- Guangdong Engineering Technology Center of Nutrition Transformation, Guangzhou 510080, China
| | - Mengfan Shen
- Department of Nutrition, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Guangzhou 510080, China
- Guangdong Engineering Technology Center of Nutrition Transformation, Guangzhou 510080, China
| | - Yongping Bao
- Norwich Medical School, University of East Anglia, Norwich NR4 7UQ, Norfolk, UK
| | - Dan Li
- Department of Nutrition, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Guangzhou 510080, China
- Guangdong Engineering Technology Center of Nutrition Transformation, Guangzhou 510080, China
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22
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George M, Lang M, Gali CC, Babalola JA, Tam-Amersdorfer C, Stracke A, Strobl H, Zimmermann R, Panzenboeck U, Wadsack C. Liver X Receptor Activation Attenuates Oxysterol-Induced Inflammatory Responses in Fetoplacental Endothelial Cells. Cells 2023; 12:cells12081186. [PMID: 37190095 DOI: 10.3390/cells12081186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 04/06/2023] [Accepted: 04/12/2023] [Indexed: 05/17/2023] Open
Abstract
Oxysterols are oxidized cholesterol derivatives whose systemic levels are found elevated in pregnancy disorders such as gestational diabetes mellitus (GDM). Oxysterols act through various cellular receptors and serve as a key metabolic signal, coordinating inflammation. GDM is a condition of low-grade chronic inflammation accompanied by altered inflammatory profiles in the mother, placenta and fetus. Higher levels of two oxysterols, namely 7-ketocholesterol (7-ketoC) and 7β-hydroxycholesterol (7β-OHC), were observed in fetoplacental endothelial cells (fpEC) and cord blood of GDM offspring. In this study, we tested the effects of 7-ketoC and 7β-OHC on inflammation and investigated the underlying mechanisms involved. Primary fpEC in culture treated with 7-ketoC or 7β-OHC, induced the activation of mitogen-activated protein kinase (MAPK) and nuclear factor kappa B (NFκB) signaling, which resulted in the expression of pro-inflammatory cytokines (IL-6, IL-8) and intercellular cell adhesion molecule-1 (ICAM-1). Liver-X receptor (LXR) activation is known to repress inflammation. Treatment with LXR synthetic agonist T0901317 dampened oxysterol-induced inflammatory responses. Probucol, an inhibitor of LXR target gene ATP-binding cassette transporter A-1 (ABCA-1), antagonized the protective effects of T0901317, suggesting a potential involvement of ABCA-1 in LXR-mediated repression of inflammatory signaling in fpEC. TLR-4 inhibitor Tak-242 attenuated pro-inflammatory signaling induced by oxysterols downstream of the TLR-4 inflammatory signaling cascade. Taken together, our findings suggest that 7-ketoC and 7β-OHC contribute to placental inflammation through the activation of TLR-4. Pharmacologic activation of LXR in fpEC decelerates its shift to a pro-inflammatory phenotype in the presence of oxysterols.
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Affiliation(s)
- Meekha George
- Department of Obstetrics and Gynecology, Medical University of Graz, 8036 Graz, Austria
| | - Magdalena Lang
- Otto-Loewi Research Center for Vascular Biology, Immunology and Inflammation, Division of Immunology, Medical University of Graz, 8010 Graz, Austria
| | | | | | - Carmen Tam-Amersdorfer
- Otto-Loewi Research Center for Vascular Biology, Immunology and Inflammation, Division of Immunology, Medical University of Graz, 8010 Graz, Austria
| | - Anika Stracke
- Otto-Loewi Research Center for Vascular Biology, Immunology and Inflammation, Division of Immunology, Medical University of Graz, 8010 Graz, Austria
| | - Herbert Strobl
- Otto-Loewi Research Center for Vascular Biology, Immunology and Inflammation, Division of Immunology, Medical University of Graz, 8010 Graz, Austria
| | - Robert Zimmermann
- Institute for Molecular Biosciences, University of Graz, 8010 Graz, Austria
| | - Ute Panzenboeck
- Otto-Loewi Research Center for Vascular Biology, Immunology and Inflammation, Division of Immunology, Medical University of Graz, 8010 Graz, Austria
| | - Christian Wadsack
- Department of Obstetrics and Gynecology, Medical University of Graz, 8036 Graz, Austria
- BioTech-Med, 8010 Graz, Austria
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23
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Karpouzas GA, Papotti B, Ormseth SR, Palumbo M, Hernandez E, Adorni MP, Zimetti F, Budoff MJ, Ronda N. ATP-binding cassette G1 membrane transporter-mediated cholesterol efflux capacity influences coronary atherosclerosis and cardiovascular risk in Rheumatoid Arthritis. J Autoimmun 2023; 136:103029. [PMID: 36996698 DOI: 10.1016/j.jaut.2023.103029] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 03/06/2023] [Accepted: 03/17/2023] [Indexed: 03/30/2023]
Abstract
OBJECTIVES Cholesterol efflux capacity (CEC) measures the ability of high-density lipoprotein (HDL) to remove cholesterol from macrophages and reduce the lipid content of atherosclerotic plaques. CEC inversely associated with cardiovascular risk beyond HDL-cholesterol levels. CEC through the ATP-binding-cassette G1 (ABCG1) membrane transporter is impaired in rheumatoid arthritis (RA). We evaluated associations of ABCG1-CEC with coronary atherosclerosis, plaque progression and cardiovascular risk in RA. METHODS Coronary atherosclerosis (noncalcified, partially, fully-calcified, low-attenuation plaque) was assessed with computed tomography angiography in 140 patients and reevaluated in 99 after 6.9 ± 0.3 years. Cardiovascular events including acute coronary syndromes, stroke, cardiovascular death, claudication, revascularization and hospitalized heart failure were recorded. ABCG1-CEC was measured in Chinese hamster ovary cells as percentage of effluxed over total intracellular cholesterol. RESULTS ABCG1-CEC inversely associated with extensive atherosclerosis (≥5 plaques) (adjusted odds ratio 0.50 [95% CI 0.28-0.88]), numbers of partially-calcified (rate ratio [RR] 0.71 [0.53-0.94]) and low-attenuation plaques (RR 0.63 [0.43-0.91] per standard deviation increment). Higher ABCG1-CEC predicted fewer new partially-calcified plaques in patients with lower baseline and time-averaged CRP and fewer new noncalcified and calcified plaques in those receiving higher mean prednisone dose. ABCG1-CEC inversely associated with events in patients with but not without noncalcified plaques, with <median but not higher CRP and in prednisone users but not nonusers (p-for-interaction = 0.021, 0.033 and 0.008 respectively). CONCLUSION ABCG1-CEC inversely associated with plaque burden and vulnerability, and plaque progression conditionally on cumulative inflammation and corticosteroid dose. ABCG1-CEC inversely associated with events specifically in patients with noncalcified plaques, lower inflammation and in prednisone users.
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Affiliation(s)
- George A Karpouzas
- Division of Rheumatology, Harbor-UCLA Medical Center and the Lundquist Institute for Biomedical Innovation, Torrance, CA, USA.
| | - Bianca Papotti
- Department of Food and Drug, University of Parma, Parco Area delle Scienze 27/A, 43124, Parma, Italy
| | - Sarah R Ormseth
- Division of Rheumatology, Harbor-UCLA Medical Center and the Lundquist Institute for Biomedical Innovation, Torrance, CA, USA
| | - Marcella Palumbo
- Department of Food and Drug, University of Parma, Parco Area delle Scienze 27/A, 43124, Parma, Italy
| | - Elizabeth Hernandez
- Division of Rheumatology, Harbor-UCLA Medical Center and the Lundquist Institute for Biomedical Innovation, Torrance, CA, USA
| | - Maria Pia Adorni
- Department of Food and Drug, University of Parma, Parco Area delle Scienze 27/A, 43124, Parma, Italy
| | - Francesca Zimetti
- Department of Food and Drug, University of Parma, Parco Area delle Scienze 27/A, 43124, Parma, Italy
| | - Matthew J Budoff
- Division of Cardiology, Harbor-UCLA Medical Center and the Lundquist Institute for Biomedical Innovation, Torrance, CA, USA
| | - Nicoletta Ronda
- Department of Food and Drug, University of Parma, Parco Area delle Scienze 27/A, 43124, Parma, Italy
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24
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Balkrishna A, Gohel V, Pathak N, Singh R, Tomer M, Rawat M, Dev R, Varshney A. Anti-oxidant response of lipidom modulates lipid metabolism in Caenorhabditis elegans and in OxLDL-induced human macrophages by tuning inflammatory mediators. Biomed Pharmacother 2023; 160:114309. [PMID: 36709598 DOI: 10.1016/j.biopha.2023.114309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Revised: 01/17/2023] [Accepted: 01/25/2023] [Indexed: 01/29/2023] Open
Abstract
Atherosclerosis is the main pathological process of several cardiovascular diseases. It may begin early in life and stay latent and asymptomatic for an extended period before its clinical manifestation. The formation of foamy macrophages due to dysregulated lipid metabolism is a key event in the development and progression of atherosclerotic plaque. The current pharmacotherapy for atherosclerosis is not able to address multiple aetiologies associated with the disease. Lipidom, an herbal prescription medicine, has anti-oxidant, lipid lowering and anti-inflammatory properties that lead to multifaceted treatment benefits against chronic inflammation, dyslipidaemia, and oxidative stress. The present study aimed to characterize the pharmacological effects of Lipidom using various experimental models. The phytochemical analysis of Lipidom was performed on ultra-high performance liquid chromatography (UHPLC) platform. Lipidom was evaluated for cytosafety, IL-1β and MCP-1 release, modulation of NLRP3 pathway, NFκB activity, ROS generation, lipid accumulation and gene expression in THP1 macrophages. Furthermore, Lipidom evaluation was also performed in the N2, CF1553, and TJ356 strains of Caenorhabditis elegans (C. elegans). The evaluation of brood size, adult (%), lipid accumulation, triglyceride levels, SOD-3 GFP signal, MDA formation, DAF-16 nuclear translocation, and gene expression was performed in C. elegans. Lipidom treatment significantly reduced the inflammatory mediators, lipid accumulation, oxidative stress, and normalized genes involved in the development of foamy macrophages. Lipidom treated C. elegans showed a significant decline in lipid accumulation and oxidative stress. Taken together, Lipidom treatment showed a multifaceted approach in the modulation of several mediators responsible for the development and progression of atherosclerotic plaque.
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Affiliation(s)
- Acharya Balkrishna
- Drug Discovery and Development Division, Patanjali Research Institute, Governed by Patanjali Research Foundation Trust, NH-58, Haridwar 249405, Uttarakhand, India; Department of Allied and Applied Sciences, University of Patanjali, Patanjali Yog Peeth, Roorkee-Haridwar Road, Haridwar 249405, Uttarakhand, India; Patanjali Yog Peeth (UK) Trust, 40 Lambhill Street, Kinning Park, Glasgow G411AU, UK
| | - Vivek Gohel
- Drug Discovery and Development Division, Patanjali Research Institute, Governed by Patanjali Research Foundation Trust, NH-58, Haridwar 249405, Uttarakhand, India
| | - Nishit Pathak
- Drug Discovery and Development Division, Patanjali Research Institute, Governed by Patanjali Research Foundation Trust, NH-58, Haridwar 249405, Uttarakhand, India
| | - Rani Singh
- Drug Discovery and Development Division, Patanjali Research Institute, Governed by Patanjali Research Foundation Trust, NH-58, Haridwar 249405, Uttarakhand, India
| | - Meenu Tomer
- Drug Discovery and Development Division, Patanjali Research Institute, Governed by Patanjali Research Foundation Trust, NH-58, Haridwar 249405, Uttarakhand, India
| | - Malini Rawat
- Drug Discovery and Development Division, Patanjali Research Institute, Governed by Patanjali Research Foundation Trust, NH-58, Haridwar 249405, Uttarakhand, India
| | - Rishabh Dev
- Drug Discovery and Development Division, Patanjali Research Institute, Governed by Patanjali Research Foundation Trust, NH-58, Haridwar 249405, Uttarakhand, India
| | - Anurag Varshney
- Drug Discovery and Development Division, Patanjali Research Institute, Governed by Patanjali Research Foundation Trust, NH-58, Haridwar 249405, Uttarakhand, India; Department of Allied and Applied Sciences, University of Patanjali, Patanjali Yog Peeth, Roorkee-Haridwar Road, Haridwar 249405, Uttarakhand, India; Special Centre for Systems Medicine, Jawaharlal Nehru University, New Delhi 110067, India.
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25
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Effects of Caprylic Acid and Eicosapentaenoic Acid on Lipids, Inflammatory Levels, and the JAK2/STAT3 Pathway in ABCA1-Deficient Mice and ABCA1 Knock-Down RAW264.7 Cells. Nutrients 2023; 15:nu15051296. [PMID: 36904298 PMCID: PMC10005197 DOI: 10.3390/nu15051296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 03/02/2023] [Accepted: 03/03/2023] [Indexed: 03/09/2023] Open
Abstract
Our previous studies have found that caprylic acid (C8:0) can improve blood lipids and reduce inflammation levels and may be related to the upregulation of the p-JAK2/p-STAT3 pathway by ABCA1. This study aims to investigate the effects of C8:0 and eicosapentaenoic acid (EPA) on lipids, inflammatory levels, and the JAK2/STAT3 pathway in ABCA1-deficient mice (ABCA1-/-) and ABCA1 knock-down (ABCA1-KD) RAW 264.7 cells. Twenty 6-week ABCA1-/- mice were randomly divided into four groups and fed a high-fat diet, or a diet of 2% C8:0, 2% palmitic acid (C16:0) or 2% EPA for 8 weeks, respectively. The RAW 264.7 cells were divided into the control or control + LPS group, and the ABCA1-KD RAW 264.7 cells were divided into ABCA1-KD with LPS (LPS group), ABCA1-KD with LPS + C8:0 (C8:0 group), and ABCA1-KD with LPS + EPA (EPA group). Serum lipid profiles and inflammatory levels were measured, and ABCA1 and JAK2/STAT3 mRNA and protein expressions were determined by RT-PCR and Western blot analyses, respectively. Our results showed that serum lipid and inflammatory levels increased in ABCA1-/- mice (p < 0.05). After the intervention of different fatty acids in ABCA1-/- mice, TG and TNF-α were significantly lower, while MCP-1 increased significantly in the C8:0 group (p < 0.05); however, LDL-C, TC, TNF-α, IL-6, and MCP-1 levels decreased significantly and IL-10 increased significantly in the EPA group (p < 0.05). In the aorta of ABCA1-/- mice, C8:0 significantly decreased p-STAT3 and p-JAK2 mRNA, while EPA significantly reduced TLR4 and NF-κBp65 mRNA. In the ABCA1-KD RAW 264.7 cells, TNF-α and MCP-1 were increased significantly and IL-10 and IL-1β were significantly decreased in the C8:0 group (p < 0.05). The protein expressions of ABCA1 and p-JAK2 were significantly higher, and the NF-κBp65 was significantly lower in the C8:0 and EPA groups (p < 0.05). Meanwhile, compared to the C8:0 group, the NF-κBp65 protein expression was significantly lower in the EPA group (p < 0.05). Our study showed that EPA had better effects than C8:0 on inhibiting inflammation and improving blood lipids in the absence of ABCA1. C8:0 may be involved mainly in inhibiting inflammation through upregulation of the ABCA1 and p-JAK2/p-STAT3 pathways, while EPA may be involved mainly in inhibiting inflammation through the TLR4/NF-κBp65 signaling pathway. The upregulation of the ABCA1 expression pathway by functional nutrients may provide research targets for the prevention and treatment of atherosclerosis.
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Hong Y, Zhang Y, Chen H, Tang X, Zhao H, Meng Z, Jia X, Liu W, Li X, Wang L, Zhong X, Bai X, Sun H, Kopylov P, Afina B, Shchekochikhin D, Zhang Y, Liu X, Fan Y. Genetic dissection of the impact of lncRNA AI662270 during the development of atherosclerosis. J Transl Med 2023; 21:97. [PMID: 36755320 PMCID: PMC9906833 DOI: 10.1186/s12967-023-03962-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 02/02/2023] [Indexed: 02/10/2023] Open
Abstract
BACKGROUND Atherosclerosis is driven by synergistic interactions between pathological biomechanical and lipid metabolic factors. Long noncoding RNAs (LncRNAs) have been implicated in atherogenesis. The purpose of this study was to investigate the potential mechanism of lncRNA AI662270 on macrophage cholesterol transport in atherosclerosis. METHODS Apolipoprotein E deficiency (ApoE-/-) mice were fed a high fat diet for 16 weeks to construct atherosclerotic model, and the mice were injected with recombinant lentivirus carrying AI662270 gene to overexpress AI662270. Macrophages were cleared by liposomal clondronate in vivo. Fundamental experiments and functional assays, hematoxylin and eosin staining, oil red O staining and others, were performed to evaluate the function of AI662270 on atherogenesis. Peritoneal macrophages were treated with oxidized low density lipoprotein (ox-LDL) to simulate in vitro model. Mechanism assays, RNA-interacting protein immunoprecipitation, RNA-protein pulldown and others, were performed to study the regulatory mechanism of AI662270 in macrophages. RESULTS The novel AI662270 was mainly enriched in macrophages, but not in endothelial cells, smooth muscle cells and fibroblasts of mouse atherosclerotic lesions and was upregulated by ox-LDL. Overexpression of AI662270 resulted in lipid accumulation, larger atherosclerotic plaques and cardiac dysfunction in vivo. After macrophages were removed, the pro-atherogenic effect of AI662270 disappeared. Downregulation of AI662270 in macrophages protected against foam cell formation by potentiating cholesterol efflux and reducing intracellular total cholesterol. The opposite effect was observed in macrophage-specific AI662270-overexpressed cells in vitro. AI662270 bound to adenosine triphosphate-binding cassette transporter A1 (Abca1) responsible for regulating cholesterol efflux in macrophages. Forced expression of AI662270 in macrophages decreased Abca1 expression. The reverse occurred when expression of AI662270 was repressed. CONCLUSION These findings reveal an essential role for AI662270 in atherosclerosis progression by regulating cholesterol efflux from macrophages.
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Affiliation(s)
- Yang Hong
- grid.410736.70000 0001 2204 9268Department of Pharmacology, State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education, College of Pharmacy, Harbin Medical University, Harbin, 150081 Heilongjiang People’s Republic of China
| | - Yue Zhang
- grid.410736.70000 0001 2204 9268Department of Pharmacology, State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education, College of Pharmacy, Harbin Medical University, Harbin, 150081 Heilongjiang People’s Republic of China
| | - Hui Chen
- grid.410736.70000 0001 2204 9268Department of Pharmacology, State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education, College of Pharmacy, Harbin Medical University, Harbin, 150081 Heilongjiang People’s Republic of China
| | - Xueqing Tang
- grid.410736.70000 0001 2204 9268Department of Pharmacology, State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education, College of Pharmacy, Harbin Medical University, Harbin, 150081 Heilongjiang People’s Republic of China
| | - Hongrui Zhao
- grid.410736.70000 0001 2204 9268Department of Pharmacology, State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education, College of Pharmacy, Harbin Medical University, Harbin, 150081 Heilongjiang People’s Republic of China
| | - Ziyu Meng
- grid.410736.70000 0001 2204 9268Department of Pharmacology, State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education, College of Pharmacy, Harbin Medical University, Harbin, 150081 Heilongjiang People’s Republic of China
| | - Xueling Jia
- grid.410736.70000 0001 2204 9268Department of Pathology and Pathophysiology, College of Basic Medical Sciences, Harbin Medical University-Daqing, Daqing, 163319 Heilongjiang People’s Republic of China
| | - Wenfeng Liu
- grid.410736.70000 0001 2204 9268Department of Pathology and Pathophysiology, College of Basic Medical Sciences, Harbin Medical University-Daqing, Daqing, 163319 Heilongjiang People’s Republic of China
| | - Xiaohan Li
- grid.410736.70000 0001 2204 9268Department of Pharmacology, State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education, College of Pharmacy, Harbin Medical University, Harbin, 150081 Heilongjiang People’s Republic of China
| | - Lin Wang
- grid.410736.70000 0001 2204 9268Department of Pathology and Pathophysiology, College of Basic Medical Sciences, Harbin Medical University-Daqing, Daqing, 163319 Heilongjiang People’s Republic of China
| | - Xinrui Zhong
- grid.410736.70000 0001 2204 9268Department of Pathology and Pathophysiology, College of Basic Medical Sciences, Harbin Medical University-Daqing, Daqing, 163319 Heilongjiang People’s Republic of China
| | - Xuefeng Bai
- grid.410736.70000 0001 2204 9268School of Medical Informatics, Harbin Medical University, Daqing Campus, Daqing, 163319 People’s Republic of China
| | - Heyang Sun
- grid.410736.70000 0001 2204 9268Department of Pharmacology, State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education, College of Pharmacy, Harbin Medical University, Harbin, 150081 Heilongjiang People’s Republic of China
| | - Philipp Kopylov
- grid.410736.70000 0001 2204 9268Department of Pharmacology, State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education, College of Pharmacy, Harbin Medical University, Harbin, 150081 Heilongjiang People’s Republic of China ,grid.448878.f0000 0001 2288 8774Department of Preventive and Emergency Cardiology, Sechenov First Moscow State Medical University, Moscow, Russian Federation
| | - Bestavashvili Afina
- grid.410736.70000 0001 2204 9268Department of Pharmacology, State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education, College of Pharmacy, Harbin Medical University, Harbin, 150081 Heilongjiang People’s Republic of China ,grid.448878.f0000 0001 2288 8774Department of Cardiology, Functional and Ultrasound Diagnostics, N.V. Sklifosofsky, I. M. Sechenov First Moscow State Medical University, Moscow, Russian Federation
| | - Dmitry Shchekochikhin
- grid.410736.70000 0001 2204 9268Department of Pharmacology, State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education, College of Pharmacy, Harbin Medical University, Harbin, 150081 Heilongjiang People’s Republic of China ,grid.448878.f0000 0001 2288 8774Department of Preventive and Emergency Cardiology, Sechenov First Moscow State Medical University, Moscow, Russian Federation
| | - Yong Zhang
- grid.410736.70000 0001 2204 9268Department of Pharmacology, State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education, College of Pharmacy, Harbin Medical University, Harbin, 150081 Heilongjiang People’s Republic of China
| | - Xin Liu
- Department of Pharmacology, State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education, College of Pharmacy, Harbin Medical University, Harbin, 150081, Heilongjiang, People's Republic of China.
| | - Yuhua Fan
- Department of Pathology and Pathophysiology, College of Basic Medical Sciences, Harbin Medical University-Daqing, Daqing, 163319, Heilongjiang, People's Republic of China. .,Department of Pharmacology, State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education, College of Pharmacy, Harbin Medical University, Harbin, 150081, Heilongjiang, People's Republic of China.
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27
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Dong X, Feng Y, Xu D, Zhang M, Wen X, Zhao W, Hu Q, Zhang Q, Fu H, Ping J. Targeting macrophagic 17 β-HSD7 by fenretinide for the treatment of nonalcoholic fatty liver disease. Acta Pharm Sin B 2023; 13:142-156. [PMID: 36815031 PMCID: PMC9939369 DOI: 10.1016/j.apsb.2022.04.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 02/24/2022] [Accepted: 03/15/2022] [Indexed: 11/29/2022] Open
Abstract
Nonalcoholic fatty liver disease (NAFLD) is the most common chronic liver disease worldwide and macrophage polarization plays an important role in its pathogenesis. However, which molecule regulates macrophage polarization in NAFLD remains unclear. Herein, we showed NAFLD mice exhibited increased 17β-hydroxysteroid dehydrogenase type 7 (17β-HSD7) expression in hepatic macrophages concomitantly with elevated M1 polarization. Single-cell RNA sequencing on hepatic non-parenchymal cells isolated from wild-type littermates and macrophage-17β-HSD7 knockout mice fed with high fat diet (HFD) for 6 weeks revealed that lipid metabolism pathways were notably changed. Furthermore, 17β-HSD7 deficiency in macrophages attenuated HFD-induced hepatic steatosis, insulin resistance and liver injury. Mechanistically, 17β-HSD7 triggered NLRP3 inflammasome activation by increasing free cholesterol content, thereby promoting M1 polarization of macrophages and the secretion of pro-inflammatory cytokines. In addition, to help demonstrate that 17β-HSD7 is a potential drug target for NAFLD, fenretinide was screened out from an FDA-approved drug library based on its 17β-HSD7 dehydrogenase inhibitory activity. Fenretinide dose-dependently abrogated macrophage polarization and pro-inflammatory cytokines production, and subsequently inhibited fat deposition in hepatocytes co-cultured with macrophages. In conclusion, our findings suggest that blockade of 17β-HSD7 signaling by fenretinide would be a drug repurposing strategy for NAFLD treatment.
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Affiliation(s)
- Xiaoyu Dong
- Department of Pharmacology, School of Basic Medical Sciences, Wuhan University, Wuhan 430071, China
| | - Yiting Feng
- Department of Pharmacology, School of Basic Medical Sciences, Wuhan University, Wuhan 430071, China
| | - Dongqin Xu
- Department of Pharmacology, School of Basic Medical Sciences, Wuhan University, Wuhan 430071, China
| | - Mengya Zhang
- Department of Pharmacology, School of Basic Medical Sciences, Wuhan University, Wuhan 430071, China
| | - Xiao Wen
- Department of Pharmacology, School of Basic Medical Sciences, Wuhan University, Wuhan 430071, China
| | - Wenhao Zhao
- Department of Pharmacology, School of Basic Medical Sciences, Wuhan University, Wuhan 430071, China
| | - Qintong Hu
- Department of Pharmacology, School of Basic Medical Sciences, Wuhan University, Wuhan 430071, China
| | - Qinyong Zhang
- Department of Pharmacology, School of Basic Medical Sciences, Wuhan University, Wuhan 430071, China
| | - Hui Fu
- Department of Anatomy, School of Basic Medical Sciences, Wuhan University, Wuhan 430071, China
| | - Jie Ping
- Department of Pharmacology, School of Basic Medical Sciences, Wuhan University, Wuhan 430071, China,Corresponding author. Tel.: +86 27 6875 9310; fax: +86 27 8733 1670.
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Gulshan K. Crosstalk Between Cholesterol, ABC Transporters, and PIP2 in Inflammation and Atherosclerosis. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2023; 1422:353-377. [PMID: 36988888 DOI: 10.1007/978-3-031-21547-6_13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
Abstract
The lowering of plasma low-density lipoprotein cholesterol (LDL-C) is an easily achievable and highly reliable modifiable risk factor for preventing cardiovascular disease (CVD), as validated by the unparalleled success of statins in the last three decades. However, the 2021 American Heart Association (AHA) statistics show a worrying upward trend in CVD deaths, calling into question the widely held belief that statins and available adjuvant therapies can fully resolve the CVD problem. Human biomarker studies have shown that indicators of inflammation, such as human C-reactive protein (hCRP), can serve as a reliable risk predictor for CVD, independent of all traditional risk factors. Oxidized cholesterol mediates chronic inflammation and promotes atherosclerosis, while anti-inflammatory therapies, such as an anti-interleukin-1 beta (anti-IL-1β) antibody, can reduce CVD in humans. Cholesterol removal from artery plaques, via an athero-protective reverse cholesterol transport (RCT) pathway, can dampen inflammation. Phosphatidylinositol 4,5-bisphosphate (PIP2) plays a role in RCT by promoting adenosine triphosphate (ATP)-binding cassette transporter A1 (ABCA1)-mediated cholesterol efflux from arterial macrophages. Cholesterol crystals activate the nod-like receptor family pyrin domain containing 3 (Nlrp3) inflammasome in advanced atherosclerotic plaques, leading to IL-1β release in a PIP2-dependent fashion. PIP2 thus is a central player in CVD pathogenesis, serving as a critical link between cellular cholesterol levels, ATP-binding cassette (ABC) transporters, and inflammasome-induced IL-1β release.
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Affiliation(s)
- Kailash Gulshan
- College of Sciences and Health Professions, Center for Gene Regulation in Health and Disease, Cleveland State University, Cleveland, OH, USA.
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29
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Identification of potential M2 macrophage-associated diagnostic biomarkers in coronary artery disease. Biosci Rep 2022; 42:231928. [PMID: 36222281 DOI: 10.1042/bsr20221394] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 08/29/2022] [Accepted: 10/06/2022] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND M2 macrophages have been reported to be important in the progression of coronary artery disease (CAD). Thus, the present study aims at exploring the diagnostic value of M2 macrophage-associated genes in CAD. METHODS Transcriptome profile of CAD and control samples were downloaded from Gene Expression Omnibus database. The proportion of immune cells was analyzed using cell type identification by estimating relative subsets of RNA transcripts. Weighted Gene Co-expression Network Analysis (WGCNA) was carried out to screen the relevant module associated with M2 macrophages. Differential CAD and control samples of expressed genes (DEGs) were identified by the limma R package. Functional enrichment analysis by means of the clusterProfiler R package. Least absolute shrinkage and selection operator (LASSO) and random forest (RF) algorithms were carried out to select signature genes. Receiver operating curves (ROC) were plotted to evaluate the diagnostic value of selected signature genes. The expressions of potential diagnostic markers were validated by RT-qPCR. The ceRNA network of diagnostic biomarkers was constructed via miRwalk and Starbase database. CMap database was used to screen candidate drugs in the treatment of CAD by targeting diagnostic biomarkers. RESULTS A total of 166 M2 macrophage-associated genes were identified by WGCNA. By intersecting those genes with 879 DEGs, 53 M2 macrophage-associated DEGs were obtained in the present study. By LASSO, RF, and ROC analyses, C1orf105, CCL22, CRYGB, FRK, GAP43, REG1P, CALB1, and PTPN21 were identified as potential diagnostic biomarkers. RT-qPCR showed the consistent expression patterns of diagnostic biomarkers between GEO dataset and clinical samples. Perhexiline, alimemazine and mecamylamine were found to be potential drugs in the treatment of CAD. CONCLUSION We identified eight M2 macrophage-associated diagnostic biomarkers and candidate drugs for the CAD treatment.
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Králová A, Kubátová H, Kauerová S, Janoušek L, Froněk J, Králová Lesná I, Poledne R. Cholesterol efflux and macrophage polarization in human adipose tissue. Physiol Res 2022. [DOI: 10.33549/physiolres.934926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
The pro-inflammatory status of adipose tissue (AT) has been found to be related to reverse cholesterol transport (RCT) from peritoneal macrophages. However, this finding was made in experimental models using induced peritonitis and isolated peritoneal macrophages of animals. This experimental relationship is in agreement with RCT changes in man in two extreme situations, sepsis or cardiovascular complications.
Given the above, we sought to test RTC in relationship to macrophage polarization in the visceral AT (VAT) of living kidney donors (LKDs) and the effect of conditioned media obtained from their AT. The influence of ATCM on CE capacity was first assessed in an experiment where standard plasma was used as cholesterol acceptor from [14C] cholesterol labeled THP-1 cells. Conditioned media as a product of LKDs’ incubated AT showed no effect on CE. Likewise, we did not find any effect of individual plasma of LKDs on CE when individual plasma of LKDs were used as acceptors. On the other hand, we documented an effect of LKDs’ adipose cell size on CE. Our results indicate that the pro-inflammatory status of human AT is not likely induced by disrupted RCT but might be influenced by the metabolic status of LKDs’ adipose tissue.
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Affiliation(s)
| | | | | | | | | | | | - R Poledne
- Laboratory for Atherosclerosis Research, Institute for Clinical and Experimental Medicine, Prague, Czech Republic.
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31
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KRÁLOVÁ A, BARTUŠKOVÁ H, KAUEROVÁ S, JANOUŠEK L, FRONĚK J, KRÁLOVÁ LESNÁ I, POLEDNE R. Cholesterol efflux and macrophage polarization in human adipose tissue. Physiol Res 2022; 71:859-868. [PMID: 36426890 PMCID: PMC9814980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
The pro-inflammatory status of adipose tissue (AT) has been found to be related to reverse cholesterol transport (RCT) from peritoneal macrophages. However, this finding was made in experimental models using induced peritonitis and isolated peritoneal macrophages of animals. This experimental relationship is in agreement with RCT changes in man in two extreme situations, sepsis or cardiovascular complications. Given the above, we sought to test RTC in relationship to macrophage polarization in the visceral AT (VAT) of living kidney donors (LKDs) and the effect of conditioned media obtained from their AT. The influence of ATCM on CE capacity was first assessed in an experiment where standard plasma was used as cholesterol acceptor from [14C] cholesterol labeled THP-1. Conditioned media as a product of LKDs' incubated AT showed no effect on CE. Likewise, we did not find any effect of individual plasma of LKDs on CE when individual plasma of LKDs were used as acceptors. On the other hand, we documented an effect of LKDs' adipose cell size on CE. Our results indicate that the pro-inflammatory status of human AT is not likely induced by disrupted RCT but might be influenced by the metabolic status of LKDs' adipose tissue.
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Affiliation(s)
- Anna KRÁLOVÁ
- Laboratory for Atherosclerosis Research, Institute for Clinical and Experimental Medicine, Prague, Czech Republic,Department of Physiology, Faculty of Science, Charles University, Prague, Czech Republic
| | - Hana BARTUŠKOVÁ
- Laboratory for Atherosclerosis Research, Institute for Clinical and Experimental Medicine, Prague, Czech Republic,Department of Physiology, Faculty of Science, Charles University, Prague, Czech Republic
| | - Soňa KAUEROVÁ
- Laboratory for Atherosclerosis Research, Institute for Clinical and Experimental Medicine, Prague, Czech Republic
| | - Libor JANOUŠEK
- Transplantation Surgery Department, Institute for Clinical and Experimental Medicine, Prague, Czech Republic
| | - Jiří FRONĚK
- Transplantation Surgery Department, Institute for Clinical and Experimental Medicine, Prague, Czech Republic
| | - Ivana KRÁLOVÁ LESNÁ
- Laboratory for Atherosclerosis Research, Institute for Clinical and Experimental Medicine, Prague, Czech Republic,First Faculty of Medicine, Charles University, Military University Hospital, Prague, Czech Republic
| | - Rudolf POLEDNE
- Laboratory for Atherosclerosis Research, Institute for Clinical and Experimental Medicine, Prague, Czech Republic
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32
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Guilliams M, Scott CL. Liver macrophages in health and disease. Immunity 2022; 55:1515-1529. [PMID: 36103850 DOI: 10.1016/j.immuni.2022.08.002] [Citation(s) in RCA: 95] [Impact Index Per Article: 47.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 08/02/2022] [Accepted: 08/05/2022] [Indexed: 12/30/2022]
Abstract
Single-cell and spatial transcriptomic technologies have revealed an underappreciated heterogeneity of liver macrophages. This has led us to rethink the involvement of macrophages in liver homeostasis and disease. Identification of conserved gene signatures within these cells across species and diseases is enabling the correct identification of specific macrophage subsets and the generation of more specific tools to track and study the functions of these cells. Here, we discuss what is currently known about the definitions of these different macrophage populations, the markers that can be used to identify them, how they are wired within the liver, and their functional specializations in health and disease.
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Affiliation(s)
- Martin Guilliams
- Laboratory of Myeloid Cell Biology in Tissue Homeostasis and Regeneration, VIB-UGent Center for Inflammation Research, Technologiepark-Zwijnaarde 71, Ghent 9052, Belgium; Department of Biomedical Molecular Biology, Faculty of Sciences, Ghent University, Ghent, Belgium.
| | - Charlotte L Scott
- Department of Biomedical Molecular Biology, Faculty of Sciences, Ghent University, Ghent, Belgium; Laboratory of Myeloid Cell Biology in Tissue Damage and Inflammation, VIB-UGent Center for Inflammation Research, Technologiepark-Zwijnaarde 71, Ghent 9052, Belgium; Department of Chemical Sciences, Bernal Institute, University of Limerick, Castletroy, County Limerick, Ireland.
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33
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O’Hagan R, Berg AR, Hong CG, Parel PM, Mehta NN, Teague HL. Systemic consequences of abnormal cholesterol handling: Interdependent pathways of inflammation and dyslipidemia. Front Immunol 2022; 13:972140. [PMID: 36091062 PMCID: PMC9459038 DOI: 10.3389/fimmu.2022.972140] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Accepted: 08/05/2022] [Indexed: 11/13/2022] Open
Abstract
Metabolic conditions such as obesity and associated comorbidities are increasing in prevalence worldwide. In chronically inflamed pathologies, metabolic conditions are linked to early onset cardiovascular disease, which remains the leading cause of death despite decades of research. In recent years, studies focused on the interdependent pathways connecting metabolism and the immune response have highlighted that dysregulated cholesterol trafficking instigates an overactive, systemic inflammatory response, thereby perpetuating early development of cardiovascular disease. In this review, we will discuss the overlapping pathways connecting cholesterol trafficking with innate immunity and present evidence that cholesterol accumulation in the bone marrow may drive systemic inflammation in chronically inflamed pathologies. Lastly, we will review the current therapeutic strategies that target both inflammation and cholesterol transport, and how biologic therapy restores lipoprotein function and mitigates the immune response.
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34
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Savla SR, Prabhavalkar KS, Bhatt LK. Liver X Receptor: a potential target in the treatment of atherosclerosis. Expert Opin Ther Targets 2022; 26:645-658. [PMID: 36003057 DOI: 10.1080/14728222.2022.2117610] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
INTRODUCTION Liver X receptors (LXRs) are master regulators of atherogenesis. Their anti-atherogenic potential has been attributed to their role in the inhibition of macrophage-mediated inflammation and promotion of reverse cholesterol transport. Owing to the significance of their anti-atherogenic potential, it is essential to develop and test new generation LXR agonists, both synthetic and natural, to identify potential LXR-targeted therapeutics for the future. AREAS COVERED This review describes the role of LXRs in atherosclerotic development, provides a summary of LXR agonists and future directions for atherosclerosis research. We searched PubMed, Scopus and Google Scholar for relevant reports, from last 10 years, using atherosclerosis, liver X receptor, and LXR agonist as keywords. EXPERT OPINION LXRα has gained widespread recognition as a regulator of cholesterol homeostasis and expression of inflammatory genes. Further research using models of cell type-specific knockout and specific agonist-targeted LXR isoforms is warranted. Enthusiasm for therapeutic value of LXR agonists has been tempered due to LXRα-mediated induction of hepatic lipogenesis. LXRα agonism and LXRβ targeting, gut-specific inverse LXR agonists, investigations combining LXR agonists with other lipogenesis mitigating agents, like IDOL antagonists and synthetic HDL, and targeting ABCA1, M2 macrophages and LXRα phosphorylation, remain as promising possibilities.
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Affiliation(s)
- Shreya R Savla
- Department of Pharmacology, SVKM's Dr. Bhanuben Nanavati College of Pharmacy, Mumbai 400056, India
| | - Kedar S Prabhavalkar
- Department of Pharmacology, SVKM's Dr. Bhanuben Nanavati College of Pharmacy, Mumbai 400056, India
| | - Lokesh K Bhatt
- Department of Pharmacology, SVKM's Dr. Bhanuben Nanavati College of Pharmacy, Mumbai 400056, India
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35
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Inhibition of microRNA-33b specifically ameliorates abdominal aortic aneurysm formation via suppression of inflammatory pathways. Sci Rep 2022; 12:11984. [PMID: 35835906 PMCID: PMC9283493 DOI: 10.1038/s41598-022-16017-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Accepted: 07/04/2022] [Indexed: 11/30/2022] Open
Abstract
Abdominal aortic aneurysm (AAA) is a lethal disease, but no beneficial therapeutic agents have been established to date. Previously, we found that AAA formation is suppressed in microRNA (miR)-33-deficient mice compared with wild-type mice. Mice have only one miR-33, but humans have two miR-33 s, miR-33a and miR-33b. The data so far strongly support that inhibiting miR-33a or miR-33b will be a new strategy to treat AAA. We produced two specific anti-microRNA oligonucleotides (AMOs) that may inhibit miR-33a and miR-33b, respectively. In vitro studies showed that the AMO against miR-33b was more effective; therefore, we examined the in vivo effects of this AMO in a calcium chloride (CaCl2)-induced AAA model in humanized miR-33b knock-in mice. In this model, AAA was clearly improved by application of anti-miR-33b. To further elucidate the mechanism, we evaluated AAA 1 week after CaCl2 administration to examine the effect of anti-miR-33b. Histological examination revealed that the number of MMP-9-positive macrophages and the level of MCP-1 in the aorta of mice treated with anti-miR-33b was significantly reduced, and the serum lipid profile was improved compared with mice treated with control oligonucleotides. These results support that inhibition of miR-33b is effective in the treatment for AAA.
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36
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Bazioti V, La Rose AM, Maassen S, Bianchi F, de Boer R, Halmos B, Dabral D, Guilbaud E, Flohr-Svendsen A, Groenen AG, Marmolejo-Garza A, Koster MH, Kloosterhuis NJ, Havinga R, Pranger AT, Langelaar-Makkinje M, de Bruin A, van de Sluis B, Kohan AB, Yvan-Charvet L, van den Bogaart G, Westerterp M. T cell cholesterol efflux suppresses apoptosis and senescence and increases atherosclerosis in middle aged mice. Nat Commun 2022; 13:3799. [PMID: 35778407 PMCID: PMC9249754 DOI: 10.1038/s41467-022-31135-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Accepted: 05/27/2022] [Indexed: 02/04/2023] Open
Abstract
Atherosclerosis is a chronic inflammatory disease driven by hypercholesterolemia. During aging, T cells accumulate cholesterol, potentially affecting inflammation. However, the effect of cholesterol efflux pathways mediated by ATP-binding cassette A1 and G1 (ABCA1/ABCG1) on T cell-dependent age-related inflammation and atherosclerosis remains poorly understood. In this study, we generate mice with T cell-specific Abca1/Abcg1-deficiency on the low-density-lipoprotein-receptor deficient (Ldlr-/-) background. T cell Abca1/Abcg1-deficiency decreases blood, lymph node, and splenic T cells, and increases T cell activation and apoptosis. T cell Abca1/Abcg1-deficiency induces a premature T cell aging phenotype in middle-aged (12-13 months) Ldlr-/- mice, reflected by upregulation of senescence markers. Despite T cell senescence and enhanced T cell activation, T cell Abca1/Abcg1-deficiency decreases atherosclerosis and aortic inflammation in middle-aged Ldlr-/- mice, accompanied by decreased T cells in atherosclerotic plaques. We attribute these effects to T cell apoptosis downstream of T cell activation, compromising T cell functionality. Collectively, we show that T cell cholesterol efflux pathways suppress T cell apoptosis and senescence, and induce atherosclerosis in middle-aged Ldlr-/- mice.
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Affiliation(s)
- Venetia Bazioti
- grid.4494.d0000 0000 9558 4598Department of Pediatrics, University Medical Center Groningen, University of Groningen, 9713 AV Groningen, the Netherlands ,grid.5252.00000 0004 1936 973XInstitute for Cardiovascular Prevention (IPEK), Ludwig-Maximilians-Universität, 80336 Munich, Germany
| | - Anouk M. La Rose
- grid.4494.d0000 0000 9558 4598Department of Pediatrics, University Medical Center Groningen, University of Groningen, 9713 AV Groningen, the Netherlands
| | - Sjors Maassen
- grid.4830.f0000 0004 0407 1981Department of Molecular Immunology and Microbiology, Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, 9747 AG Groningen, the Netherlands
| | - Frans Bianchi
- grid.4830.f0000 0004 0407 1981Department of Molecular Immunology and Microbiology, Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, 9747 AG Groningen, the Netherlands
| | - Rinse de Boer
- grid.4830.f0000 0004 0407 1981Department of Molecular Immunology and Microbiology, Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, 9747 AG Groningen, the Netherlands
| | - Benedek Halmos
- grid.4494.d0000 0000 9558 4598Department of Pediatrics, University Medical Center Groningen, University of Groningen, 9713 AV Groningen, the Netherlands
| | - Deepti Dabral
- grid.4830.f0000 0004 0407 1981Department of Molecular Immunology and Microbiology, Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, 9747 AG Groningen, the Netherlands
| | - Emma Guilbaud
- grid.462370.40000 0004 0620 5402Institut National de la Santé et de la Recherche Médicale (INSERM) U1065, Université Côte d’Azur, Centre Méditerranéen de Médecine Moléculaire (C3M), Atip-Avenir, Fédération Hospitalo-Universitaire (FHU) Oncoage, 06204 Nice, France
| | - Arthur Flohr-Svendsen
- grid.4494.d0000 0000 9558 4598European Research Institute for the Biology of Ageing, University Medical Center Groningen, University of Groningen, 9713 AV Groningen, the Netherlands
| | - Anouk G. Groenen
- grid.4494.d0000 0000 9558 4598Department of Pediatrics, University Medical Center Groningen, University of Groningen, 9713 AV Groningen, the Netherlands
| | - Alejandro Marmolejo-Garza
- grid.4494.d0000 0000 9558 4598Department of Pediatrics, University Medical Center Groningen, University of Groningen, 9713 AV Groningen, the Netherlands
| | - Mirjam H. Koster
- grid.4494.d0000 0000 9558 4598Department of Pediatrics, University Medical Center Groningen, University of Groningen, 9713 AV Groningen, the Netherlands
| | - Niels J. Kloosterhuis
- grid.4494.d0000 0000 9558 4598Department of Pediatrics, University Medical Center Groningen, University of Groningen, 9713 AV Groningen, the Netherlands
| | - Rick Havinga
- grid.4494.d0000 0000 9558 4598Department of Pediatrics, University Medical Center Groningen, University of Groningen, 9713 AV Groningen, the Netherlands
| | - Alle T. Pranger
- grid.4494.d0000 0000 9558 4598Laboratory of Medicine, University Medical Center Groningen, University of Groningen, 9713 AV Groningen, the Netherlands
| | - Miriam Langelaar-Makkinje
- grid.4494.d0000 0000 9558 4598Department of Pediatrics, University Medical Center Groningen, University of Groningen, 9713 AV Groningen, the Netherlands
| | - Alain de Bruin
- grid.4494.d0000 0000 9558 4598Department of Pediatrics, University Medical Center Groningen, University of Groningen, 9713 AV Groningen, the Netherlands ,grid.5477.10000000120346234Department of Biomolecular Health Sciences, Dutch Molecular Pathology Center, Faculty of Veterinary Medicine, Utrecht University, 3584 CL Utrecht, the Netherlands
| | - Bart van de Sluis
- grid.4494.d0000 0000 9558 4598Department of Pediatrics, University Medical Center Groningen, University of Groningen, 9713 AV Groningen, the Netherlands
| | - Alison B. Kohan
- grid.21925.3d0000 0004 1936 9000Division of Endocrinology and Metabolism, Department of Medicine, University of Pittsburgh, Pittsburgh, PA 15260 USA
| | - Laurent Yvan-Charvet
- grid.462370.40000 0004 0620 5402Institut National de la Santé et de la Recherche Médicale (INSERM) U1065, Université Côte d’Azur, Centre Méditerranéen de Médecine Moléculaire (C3M), Atip-Avenir, Fédération Hospitalo-Universitaire (FHU) Oncoage, 06204 Nice, France
| | - Geert van den Bogaart
- grid.4830.f0000 0004 0407 1981Department of Molecular Immunology and Microbiology, Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, 9747 AG Groningen, the Netherlands
| | - Marit Westerterp
- grid.4494.d0000 0000 9558 4598Department of Pediatrics, University Medical Center Groningen, University of Groningen, 9713 AV Groningen, the Netherlands
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37
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10,12-conjugated linoleic acid supplementation improves HDL composition and function in mice. J Lipid Res 2022; 63:100241. [PMID: 35714730 PMCID: PMC9283942 DOI: 10.1016/j.jlr.2022.100241] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 05/12/2022] [Accepted: 06/06/2022] [Indexed: 12/31/2022] Open
Abstract
Obesity is associated with inflammation, insulin resistance, and type 2 diabetes, which are major risk factors for CVD. One dietary component of ruminant animal foods, 10,12-conjugated linoleic acid (10,12 CLA), has been shown to promote weight loss in humans. Previous work has shown that 10,12 CLA is atheroprotective in mice by a mechanism that may be distinct from its weight loss effects, but this exact mechanism is unclear. To investigate this, we evaluated HDL composition and function in obese LDL receptor (Ldlr−/−) mice that were losing weight because of 10,12 CLA supplementation or caloric restriction (CR; weight-matched control group) and in an obese control group consuming a high-fat high-sucrose diet. We show that 10,12 CLA-HDL exerted a stronger anti-inflammatory effect than CR- or high-fat high-sucrose-HDL in cultured adipocytes. Furthermore, the 10,12 CLA-HDL particle (HDL-P) concentration was higher, attributed to more medium- and large-sized HDL-Ps. Passive cholesterol efflux capacity of 10,12 CLA-HDL was elevated, as was expression of HDL receptor scavenger receptor class B type 1 in the aortic arch. Murine macrophages treated with 10,12 CLA in vitro exhibited increased expression of cholesterol transporters Abca1 and Abcg1, suggesting increased cholesterol efflux potential of these cells. Finally, proteomics analysis revealed elevated Apoa1 content in 10,12 CLA-HDL-Ps, consistent with a higher particle concentration, and particles were also enriched with alpha-1-antitrypsin, an emerging anti-inflammatory and antiatherosclerotic HDL-associated protein. We conclude that 10,12 CLA may therefore exert its atheroprotective effects by increasing HDL-P concentration, HDL anti-inflammatory potential, and promoting beneficial effects on cholesterol efflux.
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38
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Louie AY, Tingling J, Dray E, Hussain J, McKim DB, Swanson KS, Steelman AJ. Dietary Cholesterol Causes Inflammatory Imbalance and Exacerbates Morbidity in Mice Infected with Influenza A Virus. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2022; 208:2523-2539. [PMID: 35577367 DOI: 10.4049/jimmunol.2100927] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Accepted: 03/21/2022] [Indexed: 12/27/2022]
Abstract
Influenza is a common cause of pneumonia-induced hospitalization and death, but how host factors function to influence disease susceptibility or severity has not been fully elucidated. Cellular cholesterol levels may affect the pathogenesis of influenza infection, as cholesterol is crucial for viral entry and replication, as well as immune cell proliferation and function. However, there is still conflicting evidence on the extent to which dietary cholesterol influences cholesterol metabolism. In this study, we examined the effects of a high-cholesterol diet in modulating the immune response to influenza A virus (IAV) infection in mice. Mice were fed a standard or a high-cholesterol diet for 5 wk before inoculation with mouse-adapted human IAV (Puerto Rico/8/1934), and tissues were collected at days 0, 4, 8, and 16 postinfection. Cholesterol-fed mice exhibited dyslipidemia characterized by increased levels of total serum cholesterol prior to infection and decreased triglycerides postinfection. Cholesterol-fed mice also displayed increased morbidity compared with control-fed mice, which was neither a result of immunosuppression nor changes in viral load. Instead, transcriptomic analysis of the lungs revealed that dietary cholesterol caused upregulation of genes involved in viral-response pathways and leukocyte trafficking, which coincided with increased numbers of cytokine-producing CD4+ and CD8+ T cells and infiltrating dendritic cells. Morbidity as determined by percent weight loss was highly correlated with numbers of cytokine-producing CD4+ and CD8+ T cells as well as granulocytes. Taken together, dietary cholesterol promoted IAV morbidity via exaggerated cellular immune responses that were independent of viral load.
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Affiliation(s)
- Allison Y Louie
- Neuroscience Program, University of Illinois at Urbana-Champaign, Urbana, IL
| | - Joseph Tingling
- Department of Animal Sciences, University of Illinois at Urbana-Champaign, Urbana, IL
| | - Evan Dray
- Department of Animal Sciences, University of Illinois at Urbana-Champaign, Urbana, IL
| | - Jamal Hussain
- Department of Animal Sciences, University of Illinois at Urbana-Champaign, Urbana, IL
| | - Daniel B McKim
- Neuroscience Program, University of Illinois at Urbana-Champaign, Urbana, IL.,Department of Animal Sciences, University of Illinois at Urbana-Champaign, Urbana, IL.,Division of Nutritional Sciences, University of Illinois at Urbana-Champaign, Urbana, IL; and
| | - Kelly S Swanson
- Department of Animal Sciences, University of Illinois at Urbana-Champaign, Urbana, IL.,Division of Nutritional Sciences, University of Illinois at Urbana-Champaign, Urbana, IL; and
| | - Andrew J Steelman
- Neuroscience Program, University of Illinois at Urbana-Champaign, Urbana, IL; .,Department of Animal Sciences, University of Illinois at Urbana-Champaign, Urbana, IL.,Division of Nutritional Sciences, University of Illinois at Urbana-Champaign, Urbana, IL; and.,Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, IL
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39
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Rasheed A. Niche Regulation of Hematopoiesis: The Environment Is "Micro," but the Influence Is Large. Arterioscler Thromb Vasc Biol 2022; 42:691-699. [PMID: 35418246 DOI: 10.1161/atvbaha.121.316235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Immune cell production is governed by a process known as hematopoiesis, where hematopoietic stem cells (HSCs) differentiate through progenitor cells and ultimately to the mature blood and immune cells found in circulation. While HSCs are capable of cell-autonomous regulation, they also rely on extrinsic factors to balance their state of quiescence and activation. These cues can, in part, be derived from the niche in which HSCs are found. Under steady-state conditions, HSCs are found in the bone marrow. This niche is designed to support HSCs but also to respond to external factors, which allows hematopoiesis to be a finely tuned and coordinated process. However, the niche, and its regulation, can become dysregulated to potentiate inflammation during disease. This review will highlight the architecture of the bone marrow and key regulators of hematopoiesis within this niche. Emphasis will be placed on how these mechanisms go awry to exacerbate hematopoietic contributions that drive cardiovascular disease.
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Affiliation(s)
- Adil Rasheed
- University of Ottawa Heart Institute, ON, Canada. Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, ON, Canada
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40
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Nguyen MA, Hoang HD, Rasheed A, Duchez AC, Wyatt H, Lynn Cottee M, Graber TE, Susser L, Robichaud S, Berber İ, Geoffrion M, Ouimet M, Kazan H, Maegdefessel L, Mulvihill EE, Alain T, Rayner KJ. miR-223 Exerts Translational Control of Proatherogenic Genes in Macrophages. Circ Res 2022; 131:42-58. [PMID: 35611698 PMCID: PMC9213086 DOI: 10.1161/circresaha.121.319120] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
A significant burden of atherosclerotic disease is driven by inflammation. Recently, microRNAs (miRNAs) have emerged as important factors driving and protecting from atherosclerosis. miR-223 regulates cholesterol metabolism and inflammation via targeting both cholesterol biosynthesis pathway and NFkB signaling pathways; however, its role in atherosclerosis has not been investigated. We hypothesize that miR-223 globally regulates core inflammatory pathways in macrophages in response to inflammatory and atherogenic stimuli thus limiting the progression of atherosclerosis.
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Affiliation(s)
- My-Anh Nguyen
- University of Ottawa Heart Institute, Canada (M.-A.N., A.R., A.-C.D., H.W., M.L.C., L.S., S.R., M.G., M.O., E.E.M., K.J.R.).,Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Canada (M.-A.N., H.-D.H., A.R., M.L.C., L.S., S.R., M.O., E.E.M., T.A., K.J.R.)
| | - Huy-Dung Hoang
- Children's Hospital of Eastern Ontario Research Institute, Ottawa, Canada (H.-D.H., T.E.G., T.A.).,Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Canada (M.-A.N., H.-D.H., A.R., M.L.C., L.S., S.R., M.O., E.E.M., T.A., K.J.R.)
| | - Adil Rasheed
- University of Ottawa Heart Institute, Canada (M.-A.N., A.R., A.-C.D., H.W., M.L.C., L.S., S.R., M.G., M.O., E.E.M., K.J.R.).,Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Canada (M.-A.N., H.-D.H., A.R., M.L.C., L.S., S.R., M.O., E.E.M., T.A., K.J.R.)
| | - Anne-Claire Duchez
- University of Ottawa Heart Institute, Canada (M.-A.N., A.R., A.-C.D., H.W., M.L.C., L.S., S.R., M.G., M.O., E.E.M., K.J.R.)
| | - Hailey Wyatt
- University of Ottawa Heart Institute, Canada (M.-A.N., A.R., A.-C.D., H.W., M.L.C., L.S., S.R., M.G., M.O., E.E.M., K.J.R.).,Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Canada (M.-A.N., H.-D.H., A.R., M.L.C., L.S., S.R., M.O., E.E.M., T.A., K.J.R.)
| | - Mary Lynn Cottee
- University of Ottawa Heart Institute, Canada (M.-A.N., A.R., A.-C.D., H.W., M.L.C., L.S., S.R., M.G., M.O., E.E.M., K.J.R.)
| | - Tyson E Graber
- Children's Hospital of Eastern Ontario Research Institute, Ottawa, Canada (H.-D.H., T.E.G., T.A.)
| | - Leah Susser
- University of Ottawa Heart Institute, Canada (M.-A.N., A.R., A.-C.D., H.W., M.L.C., L.S., S.R., M.G., M.O., E.E.M., K.J.R.).,Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Canada (M.-A.N., H.-D.H., A.R., M.L.C., L.S., S.R., M.O., E.E.M., T.A., K.J.R.)
| | - Sabrina Robichaud
- University of Ottawa Heart Institute, Canada (M.-A.N., A.R., A.-C.D., H.W., M.L.C., L.S., S.R., M.G., M.O., E.E.M., K.J.R.).,Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Canada (M.-A.N., H.-D.H., A.R., M.L.C., L.S., S.R., M.O., E.E.M., T.A., K.J.R.)
| | - İbrahim Berber
- Electrical and Computer Engineering Graduate Program, Antalya Bilim University, Turkey (I.B.)
| | - Michele Geoffrion
- University of Ottawa Heart Institute, Canada (M.-A.N., A.R., A.-C.D., H.W., M.L.C., L.S., S.R., M.G., M.O., E.E.M., K.J.R.)
| | - Mireille Ouimet
- University of Ottawa Heart Institute, Canada (M.-A.N., A.R., A.-C.D., H.W., M.L.C., L.S., S.R., M.G., M.O., E.E.M., K.J.R.).,Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Canada (M.-A.N., H.-D.H., A.R., M.L.C., L.S., S.R., M.O., E.E.M., T.A., K.J.R.)
| | - Hilal Kazan
- Department of Computer Engineering, Antalya Bilim University, Turkey (H.K.)
| | - Lars Maegdefessel
- Department of Vascular and Endovascular Surgery, Technical University Munich, Germany (L.M.).,Department of Medicine, Karolinska Institute, Stockholm, Sweden (L.M.)
| | - Erin E Mulvihill
- University of Ottawa Heart Institute, Canada (M.-A.N., A.R., A.-C.D., H.W., M.L.C., L.S., S.R., M.G., M.O., E.E.M., K.J.R.).,Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Canada (M.-A.N., H.-D.H., A.R., M.L.C., L.S., S.R., M.O., E.E.M., T.A., K.J.R.)
| | - Tommy Alain
- Children's Hospital of Eastern Ontario Research Institute, Ottawa, Canada (H.-D.H., T.E.G., T.A.).,Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Canada (M.-A.N., H.-D.H., A.R., M.L.C., L.S., S.R., M.O., E.E.M., T.A., K.J.R.)
| | - Katey J Rayner
- University of Ottawa Heart Institute, Canada (M.-A.N., A.R., A.-C.D., H.W., M.L.C., L.S., S.R., M.G., M.O., E.E.M., K.J.R.).,Centre for Infection, Immunity & Inflammation, Faculty of Medicine, University of Ottawa, Canada (K.J.R.).,Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Canada (M.-A.N., H.-D.H., A.R., M.L.C., L.S., S.R., M.O., E.E.M., T.A., K.J.R.)
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41
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Lee MKS, Cooney OD, Lin X, Nadarajah S, Dragoljevic D, Huynh K, Onda DA, Galic S, Meikle PJ, Edlund T, Fullerton MD, Kemp BE, Murphy AJ, Loh K. Defective AMPK regulation of cholesterol metabolism accelerates atherosclerosis by promoting HSPC mobilization and myelopoiesis. Mol Metab 2022; 61:101514. [PMID: 35562083 PMCID: PMC9124714 DOI: 10.1016/j.molmet.2022.101514] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 04/28/2022] [Accepted: 05/05/2022] [Indexed: 12/02/2022] Open
Abstract
Objectives Dysregulation of cholesterol metabolism in the liver and hematopoietic stem and progenitor cells (HSPCs) promotes atherosclerosis development. Previously, it has been shown that HMG-CoA-Reductase (HMGCR), the rate-limiting enzyme in the mevalonate pathway, can be phosphorylated and inactivated by the metabolic stress sensor AMP-activated protein kinase (AMPK). However, the physiological significance of AMPK regulation of HMGCR to atherogenesis has yet to be elucidated. The aim of this study was to determine the role of AMPK/HMGCR axis in the development of atherosclerosis. Methods We have generated a novel atherosclerotic-prone mouse model with defects in the AMPK regulation of HMGCR (Apoe−/−/Hmgcr KI mice). Atherosclerotic lesion size, plaque composition, immune cell and lipid profiles were assessed in Apoe−/− and Apoe−/−/Hmgcr KI mice. Results In this study, we showed that both male and female atherosclerotic-prone mice with a disruption of HMGCR regulation by AMPK (Apoe−/−/Hmgcr KI mice) display increased aortic lesion size concomitant with an increase in plaque-associated macrophages and lipid accumulation. Consistent with this, Apoe−/−/Hmgcr KI mice exhibited an increase in total circulating cholesterol and atherogenic monocytes, Ly6-Chi subset. Mechanistically, increased circulating atherogenic monocytes in Apoe−/−/Hmgcr KI mice was associated with enhanced egress of bone marrow HSPCs and extramedullary myelopoiesis, driven by a combination of elevated circulating 27-hydroxycholesterol and intracellular cholesterol in HSPCs. Conclusions Our results uncovered a novel signalling pathway involving AMPK-HMGCR axis in the regulation of cholesterol homeostasis in HSPCs, and that inhibition of this regulatory mechanism accelerates the development and progression of atherosclerosis. These findings provide a molecular basis to support the use of AMPK activators that currently undergoing Phase II clinical trial such as O–3O4 and PXL 770 for reducing atherosclerotic cardiovascular disease risks. AMPK regulation of HMGCR is critical for the control of endogenous cholesterol synthesis in HSPCs. AMPK-HMGCR signaling regulates HSPCs mobilization and myelopoiesis. Perturbation of AMPK regulation of HMGCR accelerates the development and progression of atherosclerosis.
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Affiliation(s)
- Man K S Lee
- Division of Immunometabolism, Baker Heart and Diabetes Institute; Melbourne, Australia; Department of Diabetes, Monash University; Melbourne, Australia; Department of Cardiometabolic Health, University of Melbourne; Melbourne, Australia
| | - Olivia D Cooney
- Division of Immunometabolism, Baker Heart and Diabetes Institute; Melbourne, Australia; Department of Diabetes, Monash University; Melbourne, Australia
| | - Xuzhu Lin
- Diabetes and Metabolic Disease, St. Vincent's Institute of Medical Research; Fitzroy, Australia
| | - Shaktypreya Nadarajah
- Diabetes and Metabolic Disease, St. Vincent's Institute of Medical Research; Fitzroy, Australia
| | - Dragana Dragoljevic
- Division of Immunometabolism, Baker Heart and Diabetes Institute; Melbourne, Australia; Department of Diabetes, Monash University; Melbourne, Australia; Department of Cardiometabolic Health, University of Melbourne; Melbourne, Australia
| | - Kevin Huynh
- Metabolomics Laboratory, Baker Heart and Diabetes Institute; Melbourne, Australia
| | - Danise-Ann Onda
- Diabetes and Metabolic Disease, St. Vincent's Institute of Medical Research; Fitzroy, Australia
| | - Sandra Galic
- Protein Chemistry and Metabolism, St. Vincent's Institute of Medical Research; Fitzroy, Australia; Department of Medicine, University of Melbourne; Melboourne, Australia
| | - Peter J Meikle
- Department of Diabetes, Monash University; Melbourne, Australia; Department of Cardiometabolic Health, University of Melbourne; Melbourne, Australia; Metabolomics Laboratory, Baker Heart and Diabetes Institute; Melbourne, Australia
| | - Thomas Edlund
- Umeå Centre for Molecular Medicine, Umeå University; Umeå, Sweden; Betagenon AB; Västra Strandgatan 9B, 903 26 Umeå, Sweden
| | - Morgan D Fullerton
- Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, Centre for Infection, Immunity and Inflammation, Centre for Catalysis Research and Innovation, University of Ottawa, Ottawa, Canada
| | - Bruce E Kemp
- Protein Chemistry and Metabolism, St. Vincent's Institute of Medical Research; Fitzroy, Australia; Mary MacKillop Institute for Health Research, Australian Catholic University; Melbourne, Australia; Department of Medicine, University of Melbourne; Melboourne, Australia
| | - Andrew J Murphy
- Division of Immunometabolism, Baker Heart and Diabetes Institute; Melbourne, Australia; Department of Diabetes, Monash University; Melbourne, Australia; Department of Cardiometabolic Health, University of Melbourne; Melbourne, Australia; Department of Medicine, University of Melbourne; Melboourne, Australia.
| | - Kim Loh
- Diabetes and Metabolic Disease, St. Vincent's Institute of Medical Research; Fitzroy, Australia; Mary MacKillop Institute for Health Research, Australian Catholic University; Melbourne, Australia; Department of Medicine, University of Melbourne; Melboourne, Australia.
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Esobi I, Olanrewaju O, Echesabal-Chen J, Stamatikos A. Utilizing the LoxP-Stop-LoxP System to Control Transgenic ABC-Transporter Expression In Vitro. Biomolecules 2022; 12:679. [PMID: 35625607 PMCID: PMC9138957 DOI: 10.3390/biom12050679] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 04/20/2022] [Accepted: 05/06/2022] [Indexed: 12/02/2022] Open
Abstract
ABCA1 and ABCG1 are two ABC-transporters well-recognized to promote the efflux of cholesterol to apoAI and HDL, respectively. As these two ABC-transporters are critical to cholesterol metabolism, several studies have assessed the impact of ABCA1 and ABCG1 expression on cellular cholesterol homeostasis through ABC-transporter ablation or overexpressing ABCA1/ABCG1. However, for the latter, there are currently no well-established in vitro models to effectively induce long-term ABC-transporter expression in a variety of cultured cells. Therefore, we performed proof-of-principle in vitro studies to determine whether a LoxP-Stop-LoxP (LSL) system would provide Cre-inducible ABC-transporter expression. In our studies, we transfected HEK293 cells and the HEK293-derived cell line 293-Cre cells with ABCA1-LSL and ABCG1-LSL-based plasmids. Our results showed that while the ABCA1/ABCG1 protein expression was absent in the transfected HEK293 cells, the ABCA1 and ABCG1 protein expression was detected in the 293-Cre cells transfected with ABCA1-LSL and ABCG1-LSL, respectively. When we measured cholesterol efflux in transfected 293-Cre cells, we observed an enhanced apoAI-mediated cholesterol efflux in 293-Cre cells overexpressing ABCA1, and an HDL2-mediated cholesterol efflux in 293-Cre cells constitutively expressing ABCG1. We also observed an appreciable increase in HDL3-mediated cholesterol efflux in ABCA1-overexpressing 293-Cre cells, which suggests that ABCA1 is capable of effluxing cholesterol to small HDL particles. Our proof-of-concept experiments demonstrate that the LSL-system can be used to effectively regulate ABC-transporter expression in vitro, which, in turn, allows ABCA1/ABCG1-overexpression to be extensively studied at the cellular level.
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Affiliation(s)
| | | | | | - Alexis Stamatikos
- Department of Food, Nutrition, and Packaging Sciences, Clemson University, Clemson, SC 29634, USA; (I.E.); (O.O.); (J.E.-C.)
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Gerasimova EV, Popkova TV, Gerasimova DA, Kirichenko TV. Macrophage Dysfunction in Autoimmune Rheumatic Diseases and Atherosclerosis. Int J Mol Sci 2022; 23:4513. [PMID: 35562903 PMCID: PMC9102949 DOI: 10.3390/ijms23094513] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 04/10/2022] [Accepted: 04/18/2022] [Indexed: 12/28/2022] Open
Abstract
One of the problems of modern medical science is cardiovascular pathology caused by atherosclerotic vascular lesions in patients with autoimmune rheumatic diseases (ARDs). The similarity between the mechanisms of the immunopathogenesis of ARD and chronic low-grade inflammation in atherosclerosis draws attention. According to modern concepts, chronic inflammation associated with uncontrolled activation of both innate and acquired immunity plays a fundamental role in all stages of ARDs and atherosclerotic processes. Macrophage monocytes play an important role among the numerous immune cells and mediators involved in the immunopathogenesis of both ARDs and atherosclerosis. An imbalance between M1-like and M2-like macrophages is considered one of the causes of ARDs. The study of a key pathogenetic factor in the development of autoimmune and atherosclerotic inflammation-activated monocyte/macrophages will deepen the knowledge of chronic inflammation pathogenesis.
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Affiliation(s)
- Elena V. Gerasimova
- Department of Systemic Rheumatic Diseases, V.A. Nasonova Research Institute of Rheumatology, Kashirskoe Shosse, 115522 Moscow, Russia; (E.V.G.); (T.V.P.)
| | - Tatiana V. Popkova
- Department of Systemic Rheumatic Diseases, V.A. Nasonova Research Institute of Rheumatology, Kashirskoe Shosse, 115522 Moscow, Russia; (E.V.G.); (T.V.P.)
| | - Daria A. Gerasimova
- Chair of Organization and Economy of Pharmacy, Institute of Pharmacy, A.P. Nelyubina, I.M. Sechenov First Moscow State Medical University (Sechenov University), 96k1 Ave. Vernadsky, 119526 Moscow, Russia;
| | - Tatiana V. Kirichenko
- Laboratory of Medical Genetics, Chazov National Medical Research Center of Cardiology, 15-a Cherepkovskaya Str., 121552 Moscow, Russia
- Laboratory of Cellular and Molecular Pathology of Cardiovascular System, A.P. Avtsyn Research Institute for Human Morphology, 3 Tsyurupa St., 117418 Moscow, Russia
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Vecchio FL, Bisceglia P, Imbimbo BP, Lozupone M, Latino RR, Resta E, Leone M, Solfrizzi V, Greco A, Daniele A, Watling M, Panza F, Seripa D. Are apolipoprotein E fragments a promising new therapeutic target for Alzheimer’s disease? Ther Adv Chronic Dis 2022; 13:20406223221081605. [PMID: 35321401 PMCID: PMC8935560 DOI: 10.1177/20406223221081605] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Accepted: 01/28/2022] [Indexed: 11/17/2022] Open
Abstract
Human apolipoprotein E (ApoE) is a 299-amino acid secreted glycoprotein that binds cholesterol and phospholipids. ApoE exists as three common isoforms (ApoE2, ApoE3, and ApoE4) and heterozygous carriers of the ε4 allele of the gene encoding ApoE (APOE) have a fourfold greater risk of developing Alzheimer’s disease (AD). The enzymes thrombin, cathepsin D, α-chymotrypsin-like serine protease, and high-temperature requirement serine protease A1 are responsible for ApoE proteolytic processing resulting in bioactive C-terminal-truncated fragments that vary depending on ApoE isoforms, brain region, aging, and neural injury. The objectives of the present narrative review were to describe ApoE processing, discussing current hypotheses about the potential role of various ApoE fragments in AD pathophysiology, and reviewing the current development status of different anti-ApoE drugs. The exact mechanism by which APOE gene variants increase/decrease AD risk and the role of ApoE fragments in the deposition are not fully understood, but APOE is known to directly affect tau-mediated neurodegeneration. ApoE fragments co-localize with neurofibrillary tangles and amyloid β (Aβ) plaques, and may cause neurodegeneration. Among anti-ApoE approaches, a fascinating strategy may be to therapeutically overexpress ApoE2 in APOE ε4/ε4 carriers through vector administration or liposomal delivery systems. Another approach involves reducing ApoE4 expression by intracerebroventricular antisense oligonucleotides that significantly decreased Aβ pathology in transgenic mice. Differences in the proteolytic processing of distinct ApoE isoforms and the use of ApoE fragments as mimetic peptides in AD treatment are also under investigation. Treatment with peptides that mimic the structural and biological properties of native ApoE may reduce Aβ deposition, tau hyperphosphorylation, and glial activation in mouse models of Aβ pathology. Alternative strategies involve the use of ApoE4 structure correctors, passive immunization to target a certain form of ApoE, conversion of the ApoE4 aminoacid sequence into that of ApoE3 or ApoE2, and inhibition of the ApoE-Aβ interaction.
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Affiliation(s)
- Filomena Lo Vecchio
- Research Laboratory, Complex Structure of Geriatrics, Department of Medical Sciences, Fondazione IRCCS Casa Sollievo della Sofferenza, San Giovanni Rotondo, Foggia 71013, Italy
| | - Paola Bisceglia
- Research Laboratory, Complex Structure of Geriatrics, Department of Medical Sciences, Fondazione IRCCS Casa Sollievo della Sofferenza, San Giovanni Rotondo, Italy
| | | | - Madia Lozupone
- Neurodegenerative Disease Unit, Department of Basic Medicine, Neuroscience, and Sense Organs, University of Bari Aldo Moro, Bari, Italy
| | - Raffaela Rita Latino
- Complex Structure of Neurology, Department of Medical Sciences, Fondazione IRCCS Casa Sollievo della Sofferenza, San Giovanni Rotondo, Italy
| | - Emanuela Resta
- Translational Medicine and Management of Health Systems, University of Foggia, Foggia, Italy
| | - Maurizio Leone
- Complex Structure of Neurology, Department of Medical Sciences, Fondazione IRCCS Casa Sollievo della Sofferenza, San Giovanni Rotondo, Italy
| | - Vincenzo Solfrizzi
- ‘Cesare Frugoni’ Internal and Geriatric Medicine and Memory Unit, University of Bari ‘Aldo Moro’, Bari, Italy
| | - Antonio Greco
- Department of Neuroscience, Catholic University of the Sacred Heart, Rome, Italy; Neurology Unit, IRCCS Fondazione Policlinico Universitario A. Gemelli, Rome, Italy
- Research Laboratory, Complex Structure of Geriatrics, Department of Medical Sciences, Fondazione IRCCS Casa Sollievo della Sofferenza, San Giovanni Rotondo, Italy
| | | | - Mark Watling
- CNS & Pain Department, TranScrip Ltd, Reading, UK
| | - Francesco Panza
- Research Laboratory, Complex Structure of Geriatrics, Department of Medical Sciences, Fondazione IRCCS Casa Sollievo della Sofferenza, San Giovanni Rotondo, Foggia, Italy
- Population Health Unit, Healthy Aging Phenotypes Research Unit, ‘Salus in Apulia Study’, National Institute of Gastroenterology ‘Saverio de Bellis’, Research Hospital, Castellana Grotte, Bari 70013, Italy
| | - Davide Seripa
- Research Laboratory, Complex Structure of Geriatrics, Department of Medical Sciences, Fondazione IRCCS Casa Sollievo della Sofferenza, San Giovanni Rotondo, Italy
- Hematology and Stem Cell Transplant Unit, ‘Vito Fazzi’ Hospital, Lecce, Italy
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Peters F, Ebner LJA, Atac D, Maggi J, Berger W, den Hollander AI, Grimm C. Regulation of ABCA1 by AMD-Associated Genetic Variants and Hypoxia in iPSC-RPE. Int J Mol Sci 2022; 23:ijms23063194. [PMID: 35328615 PMCID: PMC8953808 DOI: 10.3390/ijms23063194] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 03/11/2022] [Accepted: 03/14/2022] [Indexed: 02/04/2023] Open
Abstract
Age-related macular degeneration (AMD) is a progressive disease of the macula characterized by atrophy of the retinal pigment epithelium (RPE) and photoreceptor degeneration, leading to severe vision loss at advanced stages in the elderly population. Impaired reverse cholesterol transport (RCT) as well as intracellular lipid accumulation in the RPE are implicated in AMD pathogenesis. Here, we focus on ATP-binding cassette transporter A1 (ABCA1), a major cholesterol transport protein in the RPE, and analyze conditions that lead to ABCA1 dysregulation in induced pluripotent stem cell (iPSC)-derived RPE cells (iRPEs). Our results indicate that the risk-conferring alleles rs1883025 (C) and rs2740488 (A) in ABCA1 are associated with increased ABCA1 mRNA and protein levels and reduced efficiency of cholesterol efflux from the RPE. Hypoxia, an environmental risk factor for AMD, reduced expression of ABCA1 and increased intracellular lipid accumulation. Treatment with a liver X receptor (LXR) agonist led to an increase in ABCA1 expression and reduced lipid accumulation. Our data strengthen the homeostatic role of cholesterol efflux in the RPE and suggest that increasing cellular cholesterol export by stimulating ABCA1 expression might lessen lipid load, improving RPE survival and reducing the risk of developing AMD.
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Affiliation(s)
- Florian Peters
- Laboratory for Retinal Cell Biology, Department of Ophthalmology, University Hospital Zurich, University of Zurich, 8952 Zurich, Switzerland;
- Correspondence: (F.P.); (C.G.)
| | - Lynn J. A. Ebner
- Laboratory for Retinal Cell Biology, Department of Ophthalmology, University Hospital Zurich, University of Zurich, 8952 Zurich, Switzerland;
| | - David Atac
- Institute of Medical Molecular Genetics, University of Zurich, 8952 Zurich, Switzerland; (D.A.); (J.M.); (W.B.)
| | - Jordi Maggi
- Institute of Medical Molecular Genetics, University of Zurich, 8952 Zurich, Switzerland; (D.A.); (J.M.); (W.B.)
| | - Wolfgang Berger
- Institute of Medical Molecular Genetics, University of Zurich, 8952 Zurich, Switzerland; (D.A.); (J.M.); (W.B.)
| | - Anneke I. den Hollander
- Department of Ophthalmology, Radboud University Medical Center, 6525 Nijmegen, The Netherlands;
- AbbVie, Genomic Research Center, 200 Sidney Street, Cambridge, MA 02139, USA
| | - Christian Grimm
- Laboratory for Retinal Cell Biology, Department of Ophthalmology, University Hospital Zurich, University of Zurich, 8952 Zurich, Switzerland;
- Correspondence: (F.P.); (C.G.)
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Woollett LA, Catov JM, Jones HN. Roles of maternal HDL during pregnancy. Biochim Biophys Acta Mol Cell Biol Lipids 2022; 1867:159106. [PMID: 34995789 DOI: 10.1016/j.bbalip.2021.159106] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 11/11/2021] [Accepted: 12/05/2021] [Indexed: 01/08/2023]
Abstract
BACKGROUND High density lipoproteins (HDL) were first linked to cardiovascular disease (CVD) over 30 years ago when an inverse relationship was shown between CVD and HDL-cholesterol levels. It is now apparent that HDL composition and function, not cholesterol levels, are the pertinent measurements describing HDL's role in various disease processes, especially those with subclinical or overt inflammation. SCOPE OF REVIEW Pregnancy is also an inflammatory state. When inflammation becomes excessive during pregnancy, there is an increased risk for adverse outcomes that affect the health of the mother and fetus, including preterm birth and preeclampsia. Though studies on HDL during pregnancy are limited, recent evidence demonstrates that HDL composition and function change during pregnancy and in women with adverse outcomes. GENERAL SIGNIFICANCE In this review, we will discuss how HDL may play a role in maintaining a healthy pregnancy and how impairments in function could lead to pregnancies with adverse outcomes.
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Affiliation(s)
- Laura A Woollett
- Department of Pathology and Laboratory Medicine, University of Cincinnati Medical School, Cincinnati, OH, United States of America.
| | - Janet M Catov
- Department of Obstetrics, Gynecology and Reproductive Sciences, University of Pittsburgh School of Medicine and Magee Women's Research Institute, Pittsburgh, PA, United States of America.
| | - Helen N Jones
- Center for Research in Perinatal Outcomes, Department of Physiology and Functional Genomics, University of Florida, Gainesville, FL, United States of America; Center for Research in Perinatal Outcomes, Department of Obstetrics and Gynecology, University of Florida, Gainesville, FL, United States of America.
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Yildirim Z, Baboo S, Hamid SM, Dogan AE, Tufanli O, Robichaud S, Emerton C, Diedrich JK, Vatandaslar H, Nikolos F, Gu Y, Iwawaki T, Tarling E, Ouimet M, Nelson DL, Yates JR, Walter P, Erbay E. Intercepting IRE1 kinase-FMRP signaling prevents atherosclerosis progression. EMBO Mol Med 2022; 14:e15344. [PMID: 35191199 PMCID: PMC8988208 DOI: 10.15252/emmm.202115344] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 02/02/2022] [Accepted: 02/04/2022] [Indexed: 12/15/2022] Open
Abstract
Fragile X Mental Retardation protein (FMRP), widely known for its role in hereditary intellectual disability, is an RNA‐binding protein (RBP) that controls translation of select mRNAs. We discovered that endoplasmic reticulum (ER) stress induces phosphorylation of FMRP on a site that is known to enhance translation inhibition of FMRP‐bound mRNAs. We show ER stress‐induced activation of Inositol requiring enzyme‐1 (IRE1), an ER‐resident stress‐sensing kinase/endoribonuclease, leads to FMRP phosphorylation and to suppression of macrophage cholesterol efflux and apoptotic cell clearance (efferocytosis). Conversely, FMRP deficiency and pharmacological inhibition of IRE1 kinase activity enhances cholesterol efflux and efferocytosis, reducing atherosclerosis in mice. Our results provide mechanistic insights into how ER stress‐induced IRE1 kinase activity contributes to macrophage cholesterol homeostasis and suggests IRE1 inhibition as a promising new way to counteract atherosclerosis.
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Affiliation(s)
- Zehra Yildirim
- Department of Cardiology, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA.,Department of Molecular Biology and Genetics, National Nanotechnology Center, Bilkent University, Ankara, Turkey
| | - Sabyasachi Baboo
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA, USA
| | - Syed M Hamid
- Department of Cardiology, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Asli E Dogan
- Department of Cardiology, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA.,Department of Molecular Biology and Genetics, National Nanotechnology Center, Bilkent University, Ankara, Turkey
| | - Ozlem Tufanli
- Lagone Medical Center, New York University, New York, NY, USA
| | - Sabrina Robichaud
- Department of Biochemistry, Microbiology and Immunology, Heart Institute, University of Ottawa, Ottawa, ON, Canada
| | - Christina Emerton
- Department of Biochemistry, Microbiology and Immunology, Heart Institute, University of Ottawa, Ottawa, ON, Canada
| | - Jolene K Diedrich
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA, USA
| | - Hasan Vatandaslar
- Institute of Molecular Health Sciences, Swiss Federal Institute of Technology (ETH), Zürich, Switzerland
| | - Fotis Nikolos
- Samuel Oschin Cancer Center, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Yanghong Gu
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA
| | - Takao Iwawaki
- Department of Life Science, Medical Research Institute, Kanazawa Medical University, Ishikawa, Japan
| | - Elizabeth Tarling
- Department of Biochemistry and Biophysics, Howard Hughes Medical Institute, University of California at San Francisco, San Francisco, CA, USA
| | - Mireille Ouimet
- Department of Biochemistry, Microbiology and Immunology, Heart Institute, University of Ottawa, Ottawa, ON, Canada
| | - David L Nelson
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA
| | - John R Yates
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA, USA
| | - Peter Walter
- Department of Biochemistry and Biophysics, Howard Hughes Medical Institute, University of California at San Francisco, San Francisco, CA, USA
| | - Ebru Erbay
- Department of Cardiology, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA.,David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, CA, USA
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Matsuo M. ABCA1 and ABCG1 as potential therapeutic targets for the prevention of atherosclerosis. J Pharmacol Sci 2022; 148:197-203. [DOI: 10.1016/j.jphs.2021.11.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 11/05/2021] [Accepted: 11/09/2021] [Indexed: 12/28/2022] Open
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Groenen AG, La Rose AM, Li M, Bazioti V, Svendsen AF, Kloosterhuis NJ, Ausema A, Pranger A, Heiner-Fokkema MR, Niezen-Koning KE, Houben T, Shiri-Sverdlov R, Westerterp M. Elevated granulocyte-colony stimulating factor and hematopoietic stem cell mobilization in Niemann-Pick type C1 disease. J Lipid Res 2022; 63:100167. [PMID: 35007562 PMCID: PMC8953690 DOI: 10.1016/j.jlr.2021.100167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 12/17/2021] [Accepted: 12/19/2021] [Indexed: 11/22/2022] Open
Abstract
Niemann-Pick type C1 (NPC1) disease is a progressive lysosomal storage disorder caused by mutations of the NPC1 gene. While neurodegeneration is the most severe symptom, a large proportion of NPC1 patients also present with splenomegaly, which has been attributed to cholesterol and glycosphingolipid accumulation in late endosomes and lysosomes. However, recent data also reveal an increase in the inflammatory monocyte subset in the Npc1nih mouse model expressing an Npc1 null allele. We evaluated the contribution of hematopoietic cells to splenomegaly in NPC1 disease under conditions of hypercholesterolemia. We transplanted Npc1nih (Npc1 null mutation) or Npc1wt bone marrow (BM) into Ldlr-/- mice and fed these mice a cholesterol-rich Western-type diet. At 9 weeks after BM transplant, on a chow diet, the Npc1 null mutation increased plasma granulocyte-colony stimulating factor (G-CSF) by 2-fold and caused mild neutrophilia. At 18 weeks after BM transplant, including 9 weeks of Western-type diet feeding, the Npc1 mutation increased G-csf mRNA levels by ∼5-fold in splenic monocytes/macrophages accompanied by a ∼4-fold increase in splenic neutrophils compared with controls. We also observed ∼5-fold increased long-term and short-term hematopoietic stem cells (HSCs) in the spleen, and a ∼30-75% decrease of these populations in BM, reflecting HSC mobilization, presumably downstream of elevated G-CSF. In line with these data, four patients with NPC1 disease showed higher plasma G-CSF compared with age-matched and gender-matched healthy controls. In conclusion, we show elevated G-CSF levels and HSC mobilization in the setting of an Npc1 null mutation and propose that this contributes to splenomegaly in patients with NPC1 disease.
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Affiliation(s)
- Anouk G Groenen
- Department of Pediatrics, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Anouk M La Rose
- Department of Pediatrics, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Mengying Li
- Department of Genetics and Cell Biology, School of Nutrition and Translational Research in Metabolism (NUTRIM), University of Maastricht, Maastricht, The Netherlands
| | - Venetia Bazioti
- Department of Pediatrics, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Arthur F Svendsen
- European Research Institute for the Biology of Ageing, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Niels J Kloosterhuis
- Department of Pediatrics, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Albertina Ausema
- European Research Institute for the Biology of Ageing, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Alle Pranger
- Department of Laboratory Medicine, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - M Rebecca Heiner-Fokkema
- Department of Laboratory Medicine, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Klary E Niezen-Koning
- Department of Laboratory Medicine, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Tom Houben
- Department of Genetics and Cell Biology, School of Nutrition and Translational Research in Metabolism (NUTRIM), University of Maastricht, Maastricht, The Netherlands
| | - Ronit Shiri-Sverdlov
- Department of Genetics and Cell Biology, School of Nutrition and Translational Research in Metabolism (NUTRIM), University of Maastricht, Maastricht, The Netherlands
| | - Marit Westerterp
- Department of Pediatrics, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.
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Wang H, Guo Y, Lu H, Luo Y, Hu W, Liang W, Garcia-Barrio MT, Chang L, Schwendeman A, Zhang J, Chen YE. Krüppel-like factor 14 deletion in myeloid cells accelerates atherosclerotic lesion development. Cardiovasc Res 2022; 118:475-488. [PMID: 33538785 PMCID: PMC8803076 DOI: 10.1093/cvr/cvab027] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 12/02/2020] [Accepted: 01/22/2021] [Indexed: 12/18/2022] Open
Abstract
AIMS Atherosclerosis is the dominant pathologic basis of many cardiovascular diseases. Large genome-wide association studies have identified that single-nucleotide polymorphisms proximal to Krüppel-like factor 14 (KLF14), a member of the zinc finger family of transcription factors, are associated with higher cardiovascular risks. Macrophage dysfunction contributes to atherosclerosis development and has been recognized as a potential therapeutic target for treating many cardiovascular diseases. Herein, we address the biologic function of KLF14 in macrophages and its role during the development of atherosclerosis. METHODS AND RESULTS KLF14 expression was markedly decreased in cholesterol loaded foam cells, and overexpression of KLF14 significantly increased cholesterol efflux and inhibited the inflammatory response in macrophages. We generated myeloid cell-selective Klf14 knockout (Klf14LysM) mice in the ApoE-/- background for the atherosclerosis study. Klf14LysMApoE-/- and litter-mate control mice (Klf14fl/flApoE-/-) were placed on the Western Diet for 12 weeks to induce atherosclerosis. Macrophage Klf14 deficiency resulted in increased atherosclerosis development without affecting the plasma lipid profiles. Klf14-deficient peritoneal macrophages showed significantly reduced cholesterol efflux resulting in increased lipid accumulation and exacerbated inflammatory response. Mechanistically, KLF14 upregulates the expression of a key cholesterol efflux transporter, ABCA1 (ATP-binding cassette transporter A1), while it suppresses the expression of several critical components of the inflammatory cascade. In macrophages, activation of KLF14 by its activator, perhexiline, a drug clinically used to treat angina, significantly inhibited the inflammatory response and increased cholesterol efflux in a KLF14-dependent manner in macrophages without triggering hepatic lipogenesis. CONCLUSIONS This study provides insights into the anti-atherosclerotic effects of myeloid KLF14 through promoting cholesterol efflux and suppressing the inflammatory response. Activation of KLF14 may represent a potential new therapeutic approach to prevent or treat atherosclerosis.
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Affiliation(s)
- Huilun Wang
- Molecular and Integrative Physiology, University of Michigan Medical Center, Ann Arbor, MI 48109, USA
| | - Yanhong Guo
- Department of Internal Medicine, Cardiovascular Center, University of Michigan Medical Center, Ann Arbor, MI 48109, USA
| | - Haocheng Lu
- Department of Internal Medicine, Cardiovascular Center, University of Michigan Medical Center, Ann Arbor, MI 48109, USA
| | - Yonghong Luo
- Department of Internal Medicine, Cardiovascular Center, University of Michigan Medical Center, Ann Arbor, MI 48109, USA
- Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China
| | - Wenting Hu
- Department of Internal Medicine, Cardiovascular Center, University of Michigan Medical Center, Ann Arbor, MI 48109, USA
| | - Wenying Liang
- Molecular and Integrative Physiology, University of Michigan Medical Center, Ann Arbor, MI 48109, USA
| | - Minerva T Garcia-Barrio
- Department of Internal Medicine, Cardiovascular Center, University of Michigan Medical Center, Ann Arbor, MI 48109, USA
| | - Lin Chang
- Department of Internal Medicine, Cardiovascular Center, University of Michigan Medical Center, Ann Arbor, MI 48109, USA
| | - Anna Schwendeman
- Department of Pharmaceutical Sciences, University of Michigan, Ann Arbor, MI 48109, USA
| | - Jifeng Zhang
- Department of Internal Medicine, Cardiovascular Center, University of Michigan Medical Center, Ann Arbor, MI 48109, USA
| | - Y Eugene Chen
- Molecular and Integrative Physiology, University of Michigan Medical Center, Ann Arbor, MI 48109, USA
- Department of Internal Medicine, Cardiovascular Center, University of Michigan Medical Center, Ann Arbor, MI 48109, USA
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