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Ruppert Z, Neuperger P, Rákóczi B, Gémes N, Dukay B, Hajdu P, Péter M, Balogh G, Tiszlavicz L, Vígh L, Török Z, Puskás LG, Szebeni GJ, Tóth ME. Characterization of obesity-related diseases and inflammation using single cell immunophenotyping in two different diet-induced obesity models. Int J Obes (Lond) 2024:10.1038/s41366-024-01584-6. [PMID: 39004641 DOI: 10.1038/s41366-024-01584-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Revised: 07/04/2024] [Accepted: 07/05/2024] [Indexed: 07/16/2024]
Abstract
BACKGROUND Obesity is a growing problem worldwide and a major risk factor for many chronic diseases. The accumulation of adipose tissue leads to the release of significant amounts of pro-inflammatory cytokines and adipokines, resulting in a low-grade systemic inflammation. However, the mechanisms behind the development of obesity-related diseases are not fully understood. Therefore, our study aimed to investigate the pathological changes and inflammatory processes at systemic level and in individual organs in two different diet-induced mouse obesity models. METHODS Male C57BL6/J mice were fed by high-fat diet (HFD), high-fat/high-fructose diet (HFD + FR) or normal chow for 21 weeks starting at 3 months of age (n = 15 animals/group). Insulin resistance was tested by oral glucose tolerance test. Pathological changes were investigated on hematoxylin-eosin-stained liver and brown adipose tissue sections. The gene expression levels of adipokines and cytokines were analyzed by qPCR in adipose tissues, whereas serum protein concentrations were determined by multiplex immunoassays. Immunophenotyping of isolated blood, bone marrow and spleen cells was performed by single-cell mass cytometry. RESULTS Weight gain, glucose intolerance and hepatic steatosis were more severe in the HFD + FR group than in the control and HFD groups. This was accompanied by a higher level of systemic inflammation, as indicated by increased expression of pro-inflammatory genes in visceral white adipose tissue and by a higher serum TNFα level. In addition, immunophenotyping revealed the increase of the surface expressions of CD44 and CD69 on various cell types, such as CD8+ and CD4 + T-cells, B-cells and macrophages, in animals with obesity. CONCLUSIONS The combination of HFD with fructose supplementation promotes more properly the symptoms of metabolic syndrome. Therefore, the combined high-fat/high-fructose nutrition can be a more suitable model of the Western diet. However, despite these differences, both models showed immunophenotypic changes that may be associated with increased risk of obesity-related cancer.
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Affiliation(s)
- Zsófia Ruppert
- Laboratory of Molecular Stress Biology, Institute of Biochemistry, HUN-REN Biological Research Centre, Szeged, Hungary
- PhD School in Biology, University of Szeged, Szeged, Hungary
| | - Patrícia Neuperger
- PhD School in Biology, University of Szeged, Szeged, Hungary
- Laboratory of Functional Genomics, Core Facility, HUN-REN Biological Research Centre, Szeged, Hungary
| | - Bettina Rákóczi
- Laboratory of Molecular Stress Biology, Institute of Biochemistry, HUN-REN Biological Research Centre, Szeged, Hungary
- PhD School in Biology, University of Szeged, Szeged, Hungary
| | - Nikolett Gémes
- PhD School in Biology, University of Szeged, Szeged, Hungary
- Laboratory of Functional Genomics, Core Facility, HUN-REN Biological Research Centre, Szeged, Hungary
| | - Brigitta Dukay
- Laboratory of Molecular Stress Biology, Institute of Biochemistry, HUN-REN Biological Research Centre, Szeged, Hungary
| | - Petra Hajdu
- Laboratory of Molecular Stress Biology, Institute of Biochemistry, HUN-REN Biological Research Centre, Szeged, Hungary
| | - Mária Péter
- Laboratory of Molecular Stress Biology, Institute of Biochemistry, HUN-REN Biological Research Centre, Szeged, Hungary
| | - Gábor Balogh
- Laboratory of Molecular Stress Biology, Institute of Biochemistry, HUN-REN Biological Research Centre, Szeged, Hungary
| | - László Tiszlavicz
- Department of Pathology, Albert Szent-Györgyi Medical School, University of Szeged, Szeged, Hungary
| | - László Vígh
- Laboratory of Molecular Stress Biology, Institute of Biochemistry, HUN-REN Biological Research Centre, Szeged, Hungary
| | - Zsolt Török
- Laboratory of Molecular Stress Biology, Institute of Biochemistry, HUN-REN Biological Research Centre, Szeged, Hungary
| | - László G Puskás
- Laboratory of Functional Genomics, Core Facility, HUN-REN Biological Research Centre, Szeged, Hungary
| | - Gábor J Szebeni
- Laboratory of Functional Genomics, Core Facility, HUN-REN Biological Research Centre, Szeged, Hungary.
- Department of Internal Medicine, Hematology Centre, Faculty of Medicine, University of Szeged, H6725, Szeged, Hungary.
| | - Melinda E Tóth
- Laboratory of Molecular Stress Biology, Institute of Biochemistry, HUN-REN Biological Research Centre, Szeged, Hungary.
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Wang H, Bi X, Zhang R, Yuan H, Xu J, Zhang K, Qi S, Zhang X, Jiang M. Adipose-Derived Mesenchymal Stem Cell Facilitate Hematopoietic Stem Cell Proliferation via the Jagged-1/Notch-1/Hes Signaling Pathway. Stem Cells Int 2023; 2023:1068405. [PMID: 38020206 PMCID: PMC10653966 DOI: 10.1155/2023/1068405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 08/29/2023] [Accepted: 09/25/2023] [Indexed: 12/01/2023] Open
Abstract
Background Poor graft function (PGF) is a life-threatening complication following hematopoietic stem cell transplantation (HSCT). Current therapies, such as CD34+ cell infusion, have shown limited effectiveness. Conversely, mesenchymal stem cells (MSCs) show potential in addressing PGF. Adipose-derived mesenchymal stem cells (ADSCs) effectively support long-term hematopoietic stem cell proliferation. Therefore, this study aimed to investigate the mechanisms underlying the long-term hematopoietic support provided by ADSCs. Methods ADSCs were isolated from mice and subsequently identified. In vitro experiments involved coculturing ADSCs as feeders with Lin-Sca-1+c-kit+ (LSK) cells from mice for 2 and 5 weeks. The number of LSK cells was quantified after coculture. Scanning electron microscopy was utilized to observe the interaction between ADSCs and LSK cells. Hes-1 expression was assessed using western blot and real-time quantitative PCR. An γ-secretase inhibitor (GSI) was used to confirm the involvement of the Jagged-1/Notch-1/Hes-1 pathway in LSK cell expansion. Additionally, Jagged-1 was knocked down in ADSCs to demonstrate its significance in ADSC-mediated hematopoietic support. In vivo experiments were conducted to study the hematopoietic support provided by ADSCs through the infusion of LSK, LSK + fibroblasts, and LSK + ADSCs, respectively. Mouse survival, platelet count, leukocyte count, and hemoglobin levels were monitored. Results ADSCs showed high-Jagged-1 expression and promoted LSK cell proliferation. There was a direct interaction between ADSCs and LSK cells. After coculture, Hes-1 expression increased in LSK cells. Moreover, GSI-reduced LSK cell proliferation and Hes-1 expression. Knockdown of Jagged-1 attenuated ADSCs-mediated promotion of LSK cell proliferation. Furthermore, ADSCs facilitated hematopoietic recovery and promoted the survival of NOD/SCID mice. Conclusion The hematopoietic support provided by ADSCs both in vivo and in vitro may be mediated, at least in part, through the Jagged-1/Notch-1 signaling pathway. These findings provide valuable insights into the mechanisms underlying ADSCs-mediated hematopoietic support and may have implications for improving the treatment of PGF following HSCT.
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Affiliation(s)
- Hongbo Wang
- Hematology Center, The First Affiliated Hospital of Xinjiang Medical University (Xinjiang Uygur Autonomous Region Institute of Hematology), Urumqi 830054, China
- Stem Cell Research Center, The First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, China
| | - Xiaojuan Bi
- The State Key Laboratory of Pathogenesis and Prevention of Central Asian High Incidence Diseases, Institute of Clinical Medicine, The First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, China
| | - Rongyao Zhang
- Hematology Center, The First Affiliated Hospital of Xinjiang Medical University (Xinjiang Uygur Autonomous Region Institute of Hematology), Urumqi 830054, China
- Stem Cell Research Center, The First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, China
| | - Hailong Yuan
- Hematology Center, The First Affiliated Hospital of Xinjiang Medical University (Xinjiang Uygur Autonomous Region Institute of Hematology), Urumqi 830054, China
- Stem Cell Research Center, The First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, China
| | - Jianli Xu
- Hematology Center, The First Affiliated Hospital of Xinjiang Medical University (Xinjiang Uygur Autonomous Region Institute of Hematology), Urumqi 830054, China
- Stem Cell Research Center, The First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, China
| | - Kaile Zhang
- Hematology Center, The First Affiliated Hospital of Xinjiang Medical University (Xinjiang Uygur Autonomous Region Institute of Hematology), Urumqi 830054, China
- Stem Cell Research Center, The First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, China
| | - Songqing Qi
- Hematology Center, The First Affiliated Hospital of Xinjiang Medical University (Xinjiang Uygur Autonomous Region Institute of Hematology), Urumqi 830054, China
- Stem Cell Research Center, The First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, China
| | - Xue Zhang
- Hematology Center, The First Affiliated Hospital of Xinjiang Medical University (Xinjiang Uygur Autonomous Region Institute of Hematology), Urumqi 830054, China
- Stem Cell Research Center, The First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, China
| | - Ming Jiang
- Hematology Center, The First Affiliated Hospital of Xinjiang Medical University (Xinjiang Uygur Autonomous Region Institute of Hematology), Urumqi 830054, China
- Stem Cell Research Center, The First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, China
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A Molecular Analysis of Cytokine Content across Extracellular Vesicles, Secretions, and Intracellular Space from Different Site-Specific Adipose-Derived Stem Cells. Int J Mol Sci 2021; 23:ijms23010397. [PMID: 35008824 PMCID: PMC8745205 DOI: 10.3390/ijms23010397] [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: 11/08/2021] [Revised: 12/23/2021] [Accepted: 12/27/2021] [Indexed: 11/16/2022] Open
Abstract
Cytokines are multifunctional small proteins that have a vital influence on inflammatory states of tissues and play a role in signalling and cellular control mechanisms. Cytokine expression has primarily been viewed as a form of direct secretion of molecules through an active transportation; however, other forms of active transport such as extracellular vesicles are at play. This is particularly important in stem cells where signalling molecules are key to communication managing the levels of proliferation, migration, and differentiation into mature cells. This study investigated cytokines from intracellular content, direct cellular secretions, and extracellular vesicles from adult adipose-derived stem cells isolated from three distinct anatomical locations: abdomen, thigh, and chin. The cells were cultured investigated using live cell microscopy, cytokine assays, and bioinformatics analysis. The cytokines quantified and examined from each sample type showed a distinct difference between niche areas and sample types. The varying levels of TNF-alpha, IL-6 and IL-8 cytokines were shown to play a crucial role in signalling pathways such as MAPK, ERK1/2 and JAK-STAT in cells. On the other hand, the chemotactic cytokines IL-1rn, Eotaxin, IP-10 and MCP-1 showed the most prominent changes across extracellular vesicles with roles in noncanonical signalling. By examining the local and tangential roles of cytokines in stem cells, their roles in signalling and in regenerative mechanisms may be further understood.
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Exosomes Derived from ADSCs Attenuate Sepsis-Induced Lung Injury by Delivery of Circ-Fryl and Regulation of the miR-490-3p/SIRT3 Pathway. Inflammation 2021; 45:331-342. [PMID: 34478012 DOI: 10.1007/s10753-021-01548-2] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 05/28/2021] [Accepted: 08/16/2021] [Indexed: 10/20/2022]
Abstract
Sepsis-induced lung injury is a clinical syndrome characterized by injury of alveolar epithelium cells (AECs). Previous investigations illustrate that exosomes secreted from adipose-derived stem cells (ADSCs) have therapeutic effects in a variety of disease treatments, but roles and mechanisms regarding ADSC-derived exosomes in sepsis-induced lung injury are unclear. In this study, high-throughput sequencing was used to explore the molecular delivery of ADSC exosomes. A sepsis-induced lung injury mouse model and a lipopolysaccharide-induced AEC damage model were used for mechanistic analysis. The results showed that ADSC exosomes have high levels of the circular RNA (circ)-Fryl. Downregulation of circ-Fryl suppressed ADSC protective effects exosomes against sepsis-induced lung injury by decreasing apoptosis and inflammatory factor expression. Bioinformatics and luciferase reporting experiments showed that miR-490-3p and SIRT3 are downstream targets of circ-Fryl. miR-490-3p overexpression or SIRT3 silencing reversed ADSC exosome protective effects. Studying the mechanism showed that overexpression of circ-Fryl promoted autophagy activation by inducing SIRT3/AMPK signaling. Autophagy activation can suppress sepsis-induced lung injury by decreasing apoptosis and inflammatory factor expression. Taken together, our results suggest that exosomes derived from ADSCs attenuate sepsis-induced lung injury by delivery of circ-Fryl and regulation of the miR-490-3p/SIRT3 pathway.
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Neuroprotection through G-CSF: recent advances and future viewpoints. Pharmacol Rep 2021; 73:372-385. [PMID: 33389706 DOI: 10.1007/s43440-020-00201-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Revised: 11/18/2020] [Accepted: 11/21/2020] [Indexed: 12/14/2022]
Abstract
Granulocyte-colony stimulating factor (G-CSF), a member of the cytokine family of hematopoietic growth factors, is 19.6 kDa glycoprotein which is responsible for the proliferation, maturation, differentiation, and survival of neutrophilic granulocyte lineage. Apart from its proven clinical application to treat chemotherapy-associated neutropenia, recent pre-clinical studies have highlighted the neuroprotective roles of G-CSF i.e., mobilization of haemopoietic stem cells, anti-apoptotic, neuronal differentiation, angiogenesis and anti-inflammatory in animal models of neurological disorders. G-CSF is expressed by numerous cell types including neuronal, immune and endothelial cells. G-CSF is released in autocrine manner and binds to its receptor G-CSF-R which further activates numerous signaling transduction pathways including PI3K/AKT, JAK/STAT and MAP kinase, and thereby promote neuronal survival, proliferation, differentiation, mobilization of hematopoietic stem and progenitor cells. The expression of G-CSF receptors (G-CSF-R) in the different brain regions and their upregulation in response to neuronal insult indicates the autocrine protective signaling mechanism of G-CSF by inhibition of apoptosis, inflammation, and stimulation of neurogenesis. These observed neuroprotective effects of G-CSF makes it an attractive target to mitigate neurodegeneration associated with neurological disorders. The objective of the review is to highlight and summarize recent updates on G-CSF as a therapeutically versatile neuroprotective agent along with mechanisms of action as well as possible clinical applications in neurodegenerative disorders including AD, PD and HD.
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