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Ricci A, Zara S, Carta F, Di Valerio V, Sancilio S, Cataldi A, Selleri S, Supuran CT, Carradori S, Gallorini M. 2-Substituted-4,7-dihydro-4-ethylpyrazolo[1,5-a]pyrimidin-7-ones alleviate LPS-induced inflammation by modulating cell metabolism via CD73 upon macrophage polarization. Mol Immunol 2024; 170:99-109. [PMID: 38643690 DOI: 10.1016/j.molimm.2024.04.004] [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: 08/21/2023] [Revised: 03/10/2024] [Accepted: 04/06/2024] [Indexed: 04/23/2024]
Abstract
Macrophage polarization towards the M1 phenotype under bacterial product-related exposure (LPS) requires a rapid change in gene expression patterns and cytokine production along with a metabolic rewiring. Metabolic pathways and redox reactions are such tightly connected, giving rise to an area of research referred to as immunometabolism. A role in this context has been paid to the master redox-sensitive regulator Nuclear factor erythroid 2-related factor 2 (Nrf2) and to the 5'-ectonucleotidase CD73, a marker related to macrophage metabolism rearrangement under pro-inflammatory conditions. In this light, a cell model of LPS-stimulated macrophages has been established and nine 4,7-dihydro-4-ethylpyrazolo[l,5-a]pyrimidin-7-ones with a potential anti-inflammatory effect have been administered. Our data highlight that two selected compounds (namely, 5 and 8) inhibit the LPS-induced Nrf2 nuclear translocation and ameliorate the activity rate of the antioxidant enzyme catalase. Additionally, the pyridine-containing compound (8) promotes the shift from the pro-inflammatory immunophenotype M1 to the pro-resolving M2 one, by downregulating CD80 and iNOS and by enhancing CD163 and TGFβ1 expression. Most importantly, CD73 is modulated by these compounds as well as the lactate production. Our data demonstrate that pyrazolo[l,5-a]pyrimidine derivatives are effective as anti-inflammatory compounds. Furthermore, these pyrazolo[l,5-a]pyrimidines exert their action via CD73-related signaling and modulation of cell metabolism of activated macrophages.
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Affiliation(s)
- Alessia Ricci
- Department of Pharmacy, University "G. d'Annunzio" of Chieti-Pescara, Chieti 66100, Italy
| | - Susi Zara
- Department of Pharmacy, University "G. d'Annunzio" of Chieti-Pescara, Chieti 66100, Italy
| | - Fabrizio Carta
- NEUROFARBA Department, Section of Pharmaceutical and Nutraceutical Sciences, University of Florence, Florence, Italy
| | - Valentina Di Valerio
- Department of Innovative Technologies in Medicine and Dentistry, University "G. D'Annunzio" Chieti-Pescara, Chieti, Italy
| | - Silvia Sancilio
- Department of Medicine and Ageing Sciences, University "G. d'Annunzio" of Chieti-Pescara, Chieti 66100, Italy
| | - Amelia Cataldi
- Department of Pharmacy, University "G. d'Annunzio" of Chieti-Pescara, Chieti 66100, Italy
| | - Silvia Selleri
- NEUROFARBA Department, Section of Pharmaceutical and Nutraceutical Sciences, University of Florence, Florence, Italy
| | - Claudiu T Supuran
- NEUROFARBA Department, Section of Pharmaceutical and Nutraceutical Sciences, University of Florence, Florence, Italy
| | - Simone Carradori
- Department of Pharmacy, University "G. d'Annunzio" of Chieti-Pescara, Chieti 66100, Italy
| | - Marialucia Gallorini
- Department of Pharmacy, University "G. d'Annunzio" of Chieti-Pescara, Chieti 66100, Italy.
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Babaniamansour P, Jacho D, Niedzielski S, Rabino A, Garcia-Mata R, Yildirim-Ayan E. Modulating TRPV4 Channel Activity in Pro-Inflammatory Macrophages within the 3D Tissue Analog. Biomedicines 2024; 12:230. [PMID: 38275401 PMCID: PMC10813551 DOI: 10.3390/biomedicines12010230] [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: 12/21/2023] [Revised: 01/15/2024] [Accepted: 01/16/2024] [Indexed: 01/27/2024] Open
Abstract
Investigating macrophage plasticity emerges as a promising strategy for promoting tissue regeneration and can be exploited by regulating the transient receptor potential vanilloid 4 (TRPV4) channel. The TRPV4 channel responds to various stimuli including mechanical, chemical, and selective pharmacological compounds. It is well documented that treating cells such as epithelial cells and fibroblasts with a TRPV4 agonist enhances the Ca2+ influx to the cells, which leads to secretion of pro-inflammatory cytokines, while a TRPV4 antagonist reduces both Ca2+ influx and pro-inflammatory cytokine secretion. In this work, we investigated the effect of selective TRPV4 modulator compounds on U937-differentiated macrophages encapsulated within three-dimensional (3D) matrices. Despite offering a more physiologically relevant model than 2D cultures, pharmacological treatment of macrophages within 3D collagen matrices is largely overlooked in the literature. In this study, pro-inflammatory macrophages were treated with an agonist, 500 nM of GSK1016790A (TRPV4(+)), and an antagonist, 10 mM of RN-1734 (TRPV4(-)), to elucidate the modulation of the TRPV4 channel at both cellular and extracellular levels. To evaluate macrophage phenotypic alterations within 3D collagen matrices following TRPV4 modulator treatment, we employed structural techniques (SEM, Masson's trichrome, and collagen hybridizing peptide (CHP) staining), quantitative morphological measures for phenotypic assessment, and genotypic methods such as quantitative real-time PCR (qRT-PCR) and immunohistochemistry (IHC). Our data reveal that pharmacological modulation of the macrophage TRPV4 channel alters the cytoskeletal structure of macrophages and influences the 3D structure encapsulating them. Moreover, we proved that treating macrophages with a TRPV4 agonist and antagonist enhances the expression of pro- and anti-inflammatory genes, respectively, leading to the upregulation of surface markers CD80 and CD206. In the TRPV4(-) group, the CD206 gene and CD206 surface marker were significantly upregulated by 9- and 2.5-fold, respectively, compared to the control group. These findings demonstrate that TRPV4 modulation can be utilized to shift macrophage phenotype within the 3D matrix toward a desired state. This is an innovative approach to addressing inflammation in musculoskeletal tissues.
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Affiliation(s)
- Parto Babaniamansour
- Department of Bioengineering, College of Engineering, University of Toledo, Toledo, OH 43606, USA; (P.B.); (S.N.)
| | - Diego Jacho
- Department of Bioengineering, College of Engineering, University of Toledo, Toledo, OH 43606, USA; (P.B.); (S.N.)
| | - Skyler Niedzielski
- Department of Bioengineering, College of Engineering, University of Toledo, Toledo, OH 43606, USA; (P.B.); (S.N.)
| | - Agustin Rabino
- Department of Biological Sciences, University of Toledo, Toledo, OH 43606, USA
| | - Rafael Garcia-Mata
- Department of Biological Sciences, University of Toledo, Toledo, OH 43606, USA
| | - Eda Yildirim-Ayan
- Department of Bioengineering, College of Engineering, University of Toledo, Toledo, OH 43606, USA; (P.B.); (S.N.)
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Gallorini M, Marinacci B, Pellegrini B, Cataldi A, Dindo ML, Carradori S, Grande R. Immunophenotyping of hemocytes from infected Galleria mellonella larvae as an innovative tool for immune profiling, infection studies and drug screening. Sci Rep 2024; 14:759. [PMID: 38191588 PMCID: PMC10774281 DOI: 10.1038/s41598-024-51316-z] [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: 10/13/2023] [Accepted: 01/03/2024] [Indexed: 01/10/2024] Open
Abstract
In recent years, there has been a considerable increasing interest in the use of the greater wax moth Galleria mellonella as an animal model. In vivo pharmacological tests, concerning the efficacy and the toxicity of novel compounds are typically performed in mammalian models. However, the use of the latter is costly, laborious and requires ethical approval. In this context, G. mellonella larvae can be considered a valid option due to their greater ease of use and the absence of ethical rules. Furthermore, it has been demonstrated that the immune system of these invertebrates has similarity with the one of mammals, thus guaranteeing the reliability of this in vivo model, mainly in the microbiological field. To better develop the full potential of this model, we present a novel approach to characterize the hemocyte population from G. mellonella larvae and to highlight the immuno modulation upon infection and treatments. Our approach is based on the detection in isolated hemocytes from G. mellonella hemolymph of cell membrane markers typically expressed by human immune cells upon inflammation and infection, for instance CD14, CD44, CD80, CD163 and CD200. This method highlights the analogies between G. mellonella larvae and humans. Furthermore, we provide an innovative tool to perform pre-clinical evaluations of the efficacy of antimicrobial compounds in vivo to further proceed with clinical trials and support drug discovery campaigns.
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Affiliation(s)
- Marialucia Gallorini
- Department of Pharmacy, "G. d' Annunzio" University of Chieti-Pescara, 66100, Chieti, Italy.
| | - Beatrice Marinacci
- Department of Pharmacy, "G. d' Annunzio" University of Chieti-Pescara, 66100, Chieti, Italy
- Department of Innovative Technologies in Medicine & Dentistry, "G. d'Annunzio" University of Chieti-Pescara, 66100, Chieti, Italy
| | - Benedetta Pellegrini
- Department of Pharmacy, "G. d' Annunzio" University of Chieti-Pescara, 66100, Chieti, Italy
| | - Amelia Cataldi
- Department of Pharmacy, "G. d' Annunzio" University of Chieti-Pescara, 66100, Chieti, Italy
- UdA TechLab, "G. d' Annunzio" University of Chieti-Pescara, 66100, Chieti, Italy
| | - Maria Luisa Dindo
- Department of Agricultural and Food Sciences, University of Bologna, 40127, Bologna, Italy
| | - Simone Carradori
- Department of Pharmacy, "G. d' Annunzio" University of Chieti-Pescara, 66100, Chieti, Italy
| | - Rossella Grande
- Department of Pharmacy, "G. d' Annunzio" University of Chieti-Pescara, 66100, Chieti, Italy.
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Song Z, Cheng Y, Chen M, Xie X. Macrophage polarization in bone implant repair: A review. Tissue Cell 2023; 82:102112. [PMID: 37257287 DOI: 10.1016/j.tice.2023.102112] [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: 11/20/2022] [Revised: 04/10/2023] [Accepted: 05/15/2023] [Indexed: 06/02/2023]
Abstract
Macrophages (MΦ) are highly adaptable and functionally polarized cells that play a crucial role in various physiological and pathological processes. Typically, MΦ differentiate into two distinct subsets: the proinflammatory (M1) and anti-inflammatory (M2) phenotypes. Due to their potent immunomodulatory and anti-inflammatory properties, MΦ have garnered significant attention in recent decades. In the context of bone implant repair, the immunomodulatory function of MΦ is of paramount importance. Depending on their polarization phenotype, MΦ can exert varying effects on osteogenesis, angiogenesis, and the inflammatory response around the implant. This paper provides an overview of the immunomodulatory and inflammatory effects of MΦ polarization in the repair of bone implants.
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Affiliation(s)
- Zhengzheng Song
- Central South University Xiangya Stomatological Hospital, Central South University, Changsha 410078, Hunan, China; Xiangya School of Stomatology, Central South University, Changsha 410008, Hunan, China
| | - Yuxi Cheng
- Central South University Xiangya Stomatological Hospital, Central South University, Changsha 410078, Hunan, China; Xiangya School of Stomatology, Central South University, Changsha 410008, Hunan, China
| | - Minmin Chen
- Central South University Xiangya Stomatological Hospital, Central South University, Changsha 410078, Hunan, China.
| | - Xiaoli Xie
- Central South University Xiangya Stomatological Hospital, Central South University, Changsha 410078, Hunan, China; Hunan Key Laboratory of Oral Health Research, Changsha 410008, Hunan, China.
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