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Sheveleva O, Protasova E, Nenasheva T, Butorina N, Melnikova V, Gerasimova T, Sakovnich O, Kurinov A, Grigor’eva E, Medvedev S, Lyadova I. A Model of iPSC-Derived Macrophages with TNFAIP3 Overexpression Reveals the Peculiarities of TNFAIP3 Protein Expression and Function in Human Macrophages. Int J Mol Sci 2023; 24:12868. [PMID: 37629049 PMCID: PMC10454046 DOI: 10.3390/ijms241612868] [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: 07/04/2023] [Revised: 07/29/2023] [Accepted: 07/29/2023] [Indexed: 08/27/2023] Open
Abstract
Macrophages play a crucial role in the development and control of inflammation. Understanding the mechanisms balancing macrophage inflammatory activity is important to develop new strategies for treating inflammation-related diseases. TNF-α-induced protein 3 (TNFAIP3, A20) is a negative regulator of intracellular inflammatory cascades; its deficiency induces hyper-inflammatory reactions. Whether A20 overexpression can dampen macrophage inflammatory response remains unclear. Here, we generated human-induced pluripotent stem cells with tetracycline-inducible A20 expression and differentiated them into macrophages (A20-iMacs). A20-iMacs displayed morphology, phenotype, and phagocytic activity typical of macrophages, and they displayed upregulated A20 expression in response to doxycycline. A20 overexpression dampened the A20-iMac response to TNF-α, as shown by a decreased expression of IL1B and IL6 mRNA. A dynamic analysis of A20 expression following the generation of A20-iMacs and control iMacs showed that the expression declined in iMacs and that iMacs expressed a lower molecular weight form of the A20 protein (~70 kDa) compared with less differentiated cells (~90 kDa). A low-level expression of A20 and the predominance of a low-molecular-weight A20 form were also characteristic of monocyte-derived macrophages. The study for the first time developed a model for generating macrophages with an inducible expression of a target gene and identified the peculiarities of A20 expression in macrophages that likely underlie macrophage preparedness for inflammatory reactivity. It also suggested the possibility of mitigating inflammatory macrophage responses via A20 overexpression.
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Affiliation(s)
- Olga Sheveleva
- Laboratory of Cellular and Molecular Basis of Histogenesis, Koltzov Institute of Developmental Biology of Russian Academy of Sciences, Vavilova Str., 26, 119334 Moscow, Russia; (O.S.); (E.P.); (T.N.); (N.B.); (T.G.); (O.S.)
| | - Elena Protasova
- Laboratory of Cellular and Molecular Basis of Histogenesis, Koltzov Institute of Developmental Biology of Russian Academy of Sciences, Vavilova Str., 26, 119334 Moscow, Russia; (O.S.); (E.P.); (T.N.); (N.B.); (T.G.); (O.S.)
| | - Tatiana Nenasheva
- Laboratory of Cellular and Molecular Basis of Histogenesis, Koltzov Institute of Developmental Biology of Russian Academy of Sciences, Vavilova Str., 26, 119334 Moscow, Russia; (O.S.); (E.P.); (T.N.); (N.B.); (T.G.); (O.S.)
| | - Nina Butorina
- Laboratory of Cellular and Molecular Basis of Histogenesis, Koltzov Institute of Developmental Biology of Russian Academy of Sciences, Vavilova Str., 26, 119334 Moscow, Russia; (O.S.); (E.P.); (T.N.); (N.B.); (T.G.); (O.S.)
| | - Victoria Melnikova
- Laboratory of Comparative Developmental Physiology, Koltzov Institute of Developmental Biology of Russian Academy of Sciences, Vavilova Str., 26, 119334 Moscow, Russia;
| | - Tatiana Gerasimova
- Laboratory of Cellular and Molecular Basis of Histogenesis, Koltzov Institute of Developmental Biology of Russian Academy of Sciences, Vavilova Str., 26, 119334 Moscow, Russia; (O.S.); (E.P.); (T.N.); (N.B.); (T.G.); (O.S.)
| | - Olga Sakovnich
- Laboratory of Cellular and Molecular Basis of Histogenesis, Koltzov Institute of Developmental Biology of Russian Academy of Sciences, Vavilova Str., 26, 119334 Moscow, Russia; (O.S.); (E.P.); (T.N.); (N.B.); (T.G.); (O.S.)
| | - Alexander Kurinov
- Laboratory of Regeneration Problems, Koltzov Institute of Developmental Biology of Russian Academy of Sciences, Vavilova Str., 26, 119334 Moscow, Russia;
| | - Elena Grigor’eva
- Laboratory of Developmental Epigenetics, Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences, Lavrentyev Ave., 10, 630090 Novosibirsk, Russia; (E.G.); (S.M.)
| | - Sergey Medvedev
- Laboratory of Developmental Epigenetics, Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences, Lavrentyev Ave., 10, 630090 Novosibirsk, Russia; (E.G.); (S.M.)
| | - Irina Lyadova
- Laboratory of Cellular and Molecular Basis of Histogenesis, Koltzov Institute of Developmental Biology of Russian Academy of Sciences, Vavilova Str., 26, 119334 Moscow, Russia; (O.S.); (E.P.); (T.N.); (N.B.); (T.G.); (O.S.)
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Pulakat L. A role for misaligned gene expression of fetal gene program in the loss of female-specific cardiovascular protection in young obese and diabetic females. Front Endocrinol (Lausanne) 2023; 14:1108449. [PMID: 36909327 PMCID: PMC9995961 DOI: 10.3389/fendo.2023.1108449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Accepted: 02/06/2023] [Indexed: 02/25/2023] Open
Abstract
Healthy, premenopausal women have the advantage of female-specific cardiovascular protection compared to age-matched healthy men. However, pathologies such as obesity and Type 2 diabetes mellitus (T2DM) cause losing of this female-specific cardiovascular protection in young, obese and diabetic females. Molecular mechanisms underlying this loss of female-specific cardiovascular protection in young, obese and diabetic females are not clearly elucidated. This review takes a close look at the latest advances in our understanding of sex differences in adult cardiac gene expression patterns in health and disease. Based on the emerging data, this review proposes that female biased gene expression patterns in healthy adult hearts of human and pre-clinical models support the existence of active fetal gene program in healthy, premenopausal female heart compared to age-matched healthy male heart. However, the misalignment of gene expression pattern in this female-specific active cardiac fetal gene program caused by pathologies such as obesity and T2DM may contribute to the loss of female-specific cardiovascular protection in young, obese and diabetic females.
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Affiliation(s)
- Lakshmi Pulakat
- Molecular Cardiology Research Institute, Tufts Medical Center, and Department of Medicine, Tufts University School of Medicine, Boston, MA, United States
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Perga S, Montarolo F, Martire S, Bonaldo B, Bono G, Bertolo J, Magliozzi R, Bertolotto A. Overexpression of the ubiquitin-editing enzyme A20 in the brain lesions of Multiple Sclerosis patients: moving from systemic to central nervous system inflammation. Brain Pathol 2020; 31:283-296. [PMID: 33051914 PMCID: PMC8018032 DOI: 10.1111/bpa.12906] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Accepted: 10/07/2020] [Indexed: 12/19/2022] Open
Abstract
Multiple Sclerosis (MS) is a chronic demyelinating disease of the central nervous system (CNS) in which inflammation plays a key pathological role. Recent evidences showed that systemic inflammation induces increasing cell infiltration within meninges and perivascular spaces in the brain parenchyma, triggering resident microglial and astrocytic activation. The anti-inflammatory enzyme A20, also named TNF associated protein 3 (TNFAIP3), is considered a central gatekeeper in inflammation and peripheral immune system regulation through the inhibition of NF-kB. The TNFAIP3 locus is genetically associated to MS and its transcripts is downregulated in blood cells in treatment-naïve MS patients. Recently, several evidences in mouse models have led to hypothesize a function of A20 also in the CNS. Thus, here we aimed to unveil a possible contribution of A20 to the CNS human MS pathology. By immunohistochemistry/immunofluorescence and biomolecular techniques on post-mortem brain tissue blocks obtained from control cases (CC) and progressive MS cases, we demonstrated that A20 is present in CC brain tissues in both white matter (WM) regions, mainly in few parenchymal astrocytes, and in grey matter (GM) areas, in some neuronal populations. Conversely, in MS brain tissues, we observed increased expression of A20 by perivascular infiltrating macrophages, resident-activated astrocytes, and microglia in all the active and chronic active WM lesions. A20 was highly expressed also in the majority of active cortical lesions compared to the neighboring areas of normal-appearing grey matter (NAGM) and control GM, particularly by activated astrocytes. We demonstrated increased A20 expression in the active MS plaques, particularly in macrophages and resident astrocytes, suggesting a key role of this molecule in chronic inflammation.
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Affiliation(s)
- Simona Perga
- Neuroscience Institute Cavalieri Ottolenghi (NICO), Orbassano, Italy.,Neurobiology Unit, Neurology - CReSM (Regional Referring Center of Multiple Sclerosis), San Luigi Gonzaga University Hospital, Orbassano, Italy.,Department of Neuroscience "Rita Levi Montalcini", University of Turin, Turin, Italy
| | - Francesca Montarolo
- Neuroscience Institute Cavalieri Ottolenghi (NICO), Orbassano, Italy.,Neurobiology Unit, Neurology - CReSM (Regional Referring Center of Multiple Sclerosis), San Luigi Gonzaga University Hospital, Orbassano, Italy.,Department of Molecular Biotechnology and Health Sciences, University of Turin, Turin, Italy
| | - Serena Martire
- Neuroscience Institute Cavalieri Ottolenghi (NICO), Orbassano, Italy.,Neurobiology Unit, Neurology - CReSM (Regional Referring Center of Multiple Sclerosis), San Luigi Gonzaga University Hospital, Orbassano, Italy
| | - Brigitta Bonaldo
- Neuroscience Institute Cavalieri Ottolenghi (NICO), Orbassano, Italy.,Department of Neuroscience "Rita Levi Montalcini", University of Turin, Turin, Italy
| | - Gabriele Bono
- Neuroscience Institute Cavalieri Ottolenghi (NICO), Orbassano, Italy.,Neurobiology Unit, Neurology - CReSM (Regional Referring Center of Multiple Sclerosis), San Luigi Gonzaga University Hospital, Orbassano, Italy
| | - Jessica Bertolo
- Neuroscience Institute Cavalieri Ottolenghi (NICO), Orbassano, Italy.,Neurobiology Unit, Neurology - CReSM (Regional Referring Center of Multiple Sclerosis), San Luigi Gonzaga University Hospital, Orbassano, Italy
| | - Roberta Magliozzi
- Division of Brain Sciences, Department of Medicine, Imperial College London, London, UK.,Neurology B, Department of Neurological and Movement Sciences, University of Verona, Verona, Italy
| | - Antonio Bertolotto
- Neuroscience Institute Cavalieri Ottolenghi (NICO), Orbassano, Italy.,Neurobiology Unit, Neurology - CReSM (Regional Referring Center of Multiple Sclerosis), San Luigi Gonzaga University Hospital, Orbassano, Italy
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