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Batista C, Cruz JVR, Stipursky J, de Almeida Mendes F, Pesquero JB. Kinin B 1 receptor and TLR4 interaction in inflammatory response. Inflamm Res 2024; 73:1459-1476. [PMID: 38965133 DOI: 10.1007/s00011-024-01909-1] [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: 03/13/2024] [Revised: 05/27/2024] [Accepted: 06/19/2024] [Indexed: 07/06/2024] Open
Abstract
OBJECTIVE We aimed to broaden our understanding of a potential interaction between B1R and TLR4, considering earlier studies suggesting that lipopolysaccharide (LPS) may trigger B1R stimulation. METHODS We assessed the impact of DBK and LPS on the membrane potential of thoracic aortas from C57BL/6, B1R, or TLR4 knockout mice. Additionally, we examined the staining patterns of these receptors in the thoracic aortas of C57BL/6 and in endothelial cells (HBMEC). RESULTS DBK does not affect the resting membrane potential of aortic rings in C57BL/6 mice, but it hyperpolarizes preparations in B1KO and TLR4KO mice. The hyperpolarization mechanism in B1KO mice involves B2R, and the TLR4KO response is independent of cytoplasmic calcium influx but relies on potassium channels. Conversely, LPS hyperpolarizes thoracic aorta rings in both C57BL/6 and B1KO mice, with the response unaffected by a B1R antagonist. Interestingly, the absence of B1R alters the LPS response to potassium channels. These activities are independent of nitric oxide synthase (NOS). While exposure to DBK and LPS does not alter B1R and TLR4 mRNA expression, treatment with these agonists increases B1R staining in endothelial cells of thoracic aortic rings and modifies the staining pattern of B1R and TLR4 in endothelial cells. Proximity ligation assay suggests a interaction between the receptors. CONCLUSION Our findings provide additional support for a putative connection between B1R and TLR4 signaling. Given the involvement of these receptors and their agonists in inflammation, it suggests that drugs and therapies targeting their effects could be promising therapeutic avenues worth exploring.
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Affiliation(s)
- Carolina Batista
- Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Rua César Pernetta, S/N, Prédio do ICB (Anexo ao Bloco F do CCS), 3º andar, sala LJ.03.01, Cidade Universitária, Rio de Janeiro, RJ, CEP: 21941-902, Brazil
- Departamento de Biofísica, Universidade Federal de São Paulo, R. Pedro de Toledo, 669, 9° andar, São Paulo, SP, CEP: 04039-032, Brazil
| | - João Victor Roza Cruz
- Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Rua César Pernetta, S/N, Prédio do ICB (Anexo ao Bloco F do CCS), 3º andar, sala LJ.03.01, Cidade Universitária, Rio de Janeiro, RJ, CEP: 21941-902, Brazil
| | - Joice Stipursky
- Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Rua César Pernetta, S/N, Prédio do ICB (Anexo ao Bloco F do CCS), 3º andar, sala LJ.03.01, Cidade Universitária, Rio de Janeiro, RJ, CEP: 21941-902, Brazil
| | - Fabio de Almeida Mendes
- Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Rua César Pernetta, S/N, Prédio do ICB (Anexo ao Bloco F do CCS), 3º andar, sala LJ.03.01, Cidade Universitária, Rio de Janeiro, RJ, CEP: 21941-902, Brazil.
| | - João Bosco Pesquero
- Departamento de Biofísica, Universidade Federal de São Paulo, R. Pedro de Toledo, 669, 9° andar, São Paulo, SP, CEP: 04039-032, Brazil.
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Quarta S, Sandre M, Ruvoletto M, Campagnolo M, Emmi A, Biasiolo A, Pontisso P, Antonini A. Inhibition of Protease-Activated Receptor-2 Activation in Parkinson's Disease Using 1-Piperidin Propionic Acid. Biomedicines 2024; 12:1623. [PMID: 39062196 PMCID: PMC11274518 DOI: 10.3390/biomedicines12071623] [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: 07/03/2024] [Revised: 07/17/2024] [Accepted: 07/19/2024] [Indexed: 07/28/2024] Open
Abstract
In Parkinson's disease, neuroinflammation is a double-edged sword; when inflammation occurs it can have harmful effects, despite its important role in battling infections and healing tissue. Once triggered by microglia, astrocytes acquire a reactive state and shift from supporting the survival of neurons to causing their destruction. Activated microglia and Proteinase-activated receptor-2 (PAR2) are key points in the regulation of neuroinflammation. 1-Piperidin Propionic Acid (1-PPA) has been recently described as a novel inhibitor of PAR2. The aim of our study was to evaluate the effect of 1-PPA in neuroinflammation and microglial activation in Parkinson's disease. Protein aggregates and PAR2 expression were analyzed using Thioflavin S assay and immunofluorescence in cultured human fibroblasts from Parkinson's patients, treated or untreated with 1-PPA. A significant decrease in amyloid aggregates was observed after 1-PPA treatment in all patients. A parallel decrease in PAR2 expression, which was higher in sporadic Parkinson's patients, was also observed both at the transcriptional and protein level. In addition, in mouse LPS-activated microglia, the inflammatory profile was significantly downregulated after 1-PPA treatment, with a remarkable decrease in IL-1β, IL-6, and TNF-α, together with a decreased expression of PAR2. In conclusion, 1-PPA determines the reduction in neuroglia inflammation and amyloid aggregates formation, suggesting that the pharmacological inhibition of PAR2 could be proposed as a novel strategy to control neuroinflammation.
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Affiliation(s)
- Santina Quarta
- Department of Medicine, University of Padova, 35122 Padova, Italy; (S.Q.); (M.R.); (A.B.)
| | - Michele Sandre
- Parkinson and Movement Disorders Unit, Padua Neuroscience Center (PNC), Center for Neurodegenerative Disease Research (CESNE), Department of Neuroscience, University of Padova, 35122 Padova, Italy; (M.S.); (M.C.); (A.E.); (A.A.)
| | - Mariagrazia Ruvoletto
- Department of Medicine, University of Padova, 35122 Padova, Italy; (S.Q.); (M.R.); (A.B.)
| | - Marta Campagnolo
- Parkinson and Movement Disorders Unit, Padua Neuroscience Center (PNC), Center for Neurodegenerative Disease Research (CESNE), Department of Neuroscience, University of Padova, 35122 Padova, Italy; (M.S.); (M.C.); (A.E.); (A.A.)
| | - Aron Emmi
- Parkinson and Movement Disorders Unit, Padua Neuroscience Center (PNC), Center for Neurodegenerative Disease Research (CESNE), Department of Neuroscience, University of Padova, 35122 Padova, Italy; (M.S.); (M.C.); (A.E.); (A.A.)
| | - Alessandra Biasiolo
- Department of Medicine, University of Padova, 35122 Padova, Italy; (S.Q.); (M.R.); (A.B.)
| | - Patrizia Pontisso
- Department of Medicine, University of Padova, 35122 Padova, Italy; (S.Q.); (M.R.); (A.B.)
| | - Angelo Antonini
- Parkinson and Movement Disorders Unit, Padua Neuroscience Center (PNC), Center for Neurodegenerative Disease Research (CESNE), Department of Neuroscience, University of Padova, 35122 Padova, Italy; (M.S.); (M.C.); (A.E.); (A.A.)
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Salga M, Samuel SG, Tseng HW, Gatin L, Girard D, Rival B, Barbier V, Bisht K, Shatunova S, Debaud C, Winkler IG, Paquereau J, Dinh A, Genêt G, Kerever S, Abback PS, Banzet S, Genêt F, Lévesque JP, Alexander KA. Bacterial Lipopolysaccharides Exacerbate Neurogenic Heterotopic Ossification Development. J Bone Miner Res 2023; 38:1700-1717. [PMID: 37602772 DOI: 10.1002/jbmr.4905] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 07/24/2023] [Accepted: 08/15/2023] [Indexed: 08/22/2023]
Abstract
Neurogenic heterotopic ossifications (NHO) are heterotopic bones that develop in periarticular muscles after severe central nervous system (CNS) injuries. Several retrospective studies have shown that NHO prevalence is higher in patients who suffer concomitant infections. However, it is unclear whether these infections directly contribute to NHO development or reflect the immunodepression observed in patients with CNS injury. Using our mouse model of NHO induced by spinal cord injury (SCI) between vertebrae T11 to T13 , we demonstrate that lipopolysaccharides (LPS) from gram-negative bacteria exacerbate NHO development in a toll-like receptor-4 (TLR4)-dependent manner, signaling through the TIR-domain-containing adapter-inducing interferon-β (TRIF/TICAM1) adaptor rather than the myeloid differentiation primary response-88 (MYD88) adaptor. We find that T11 to T13 SCI did not significantly alter intestinal integrity nor cause intestinal bacteria translocation or endotoxemia, suggesting that NHO development is not driven by endotoxins from the gut in this model of SCI-induced NHO. Relevant to the human pathology, LPS increased expression of osteoblast markers in cultures of human fibro-adipogenic progenitors isolated from muscles surrounding NHO biopsies. In a case-control retrospective study in patients with traumatic brain injuries, infections with gram-negative Pseudomonas species were significantly associated with NHO development. Together these data suggest a functional association between gram-negative bacterial infections and NHO development and highlights infection management as a key consideration to avoid NHO development in patients. © 2023 The Authors. Journal of Bone and Mineral Research published by Wiley Periodicals LLC on behalf of American Society for Bone and Mineral Research (ASBMR).
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Affiliation(s)
- Marjorie Salga
- Mater Research Institute-The University of Queensland, Translational Research Institute, Woolloongabba, Australia
- University of Versailles Saint Quentin en Yvelines, END:ICAP U1179 INSERM, UFR Simone Veil-Santé, Montigny le Bretonneux, France
- UPOH (Unité Péri Opératoire du Handicap), Physical and Rehabilitation Medicine Department, Raymond-Poincaré Hospital, Assistance Publique-Hôpitaux de Paris (AP-HP), Garches, France
| | - Selwin G Samuel
- Mater Research Institute-The University of Queensland, Translational Research Institute, Woolloongabba, Australia
- Department of Oral Pathology and Microbiology, Saveetha Dental College and Hospitals, Chennai, India
| | - Hsu-Wen Tseng
- Mater Research Institute-The University of Queensland, Translational Research Institute, Woolloongabba, Australia
| | - Laure Gatin
- University of Versailles Saint Quentin en Yvelines, END:ICAP U1179 INSERM, UFR Simone Veil-Santé, Montigny le Bretonneux, France
- UPOH (Unité Péri Opératoire du Handicap), Physical and Rehabilitation Medicine Department, Raymond-Poincaré Hospital, Assistance Publique-Hôpitaux de Paris (AP-HP), Garches, France
- Department of Orthopedic Surgery, Raymond Poincaré Hospital, AP-HP, Garches, France
| | - Dorothée Girard
- Institut de Recherche Biomédicale des Armées (IRBA), INSERM UMR-MD 1197, Clamart, France
| | - Bastien Rival
- Institut de Recherche Biomédicale des Armées (IRBA), INSERM UMR-MD 1197, Clamart, France
| | - Valérie Barbier
- Mater Research Institute-The University of Queensland, Translational Research Institute, Woolloongabba, Australia
| | - Kavita Bisht
- Mater Research Institute-The University of Queensland, Translational Research Institute, Woolloongabba, Australia
| | - Svetlana Shatunova
- Mater Research Institute-The University of Queensland, Translational Research Institute, Woolloongabba, Australia
| | - Charlotte Debaud
- University of Versailles Saint Quentin en Yvelines, END:ICAP U1179 INSERM, UFR Simone Veil-Santé, Montigny le Bretonneux, France
| | - Ingrid G Winkler
- Mater Research Institute-The University of Queensland, Translational Research Institute, Woolloongabba, Australia
| | - Julie Paquereau
- UPOH (Unité Péri Opératoire du Handicap), Physical and Rehabilitation Medicine Department, Raymond-Poincaré Hospital, Assistance Publique-Hôpitaux de Paris (AP-HP), Garches, France
| | - Aurélien Dinh
- Department of Infectious Diseases, Raymond Poincaré Hospital, AP-HP, Garches, France
| | - Guillaume Genêt
- University of Versailles Saint Quentin en Yvelines, END:ICAP U1179 INSERM, UFR Simone Veil-Santé, Montigny le Bretonneux, France
| | - Sébastien Kerever
- Department of Anesthesiology and Critical Care, Lariboisière University Hospital, AP-HP, Paris, France
| | - Paer-Sélim Abback
- Department of Anesthesiology and Critical Care, Beaujon Hospital, DMU Parabol, AP-HP, Clichy, France
| | - Sébastien Banzet
- Institut de Recherche Biomédicale des Armées (IRBA), INSERM UMR-MD 1197, Clamart, France
| | - François Genêt
- University of Versailles Saint Quentin en Yvelines, END:ICAP U1179 INSERM, UFR Simone Veil-Santé, Montigny le Bretonneux, France
- UPOH (Unité Péri Opératoire du Handicap), Physical and Rehabilitation Medicine Department, Raymond-Poincaré Hospital, Assistance Publique-Hôpitaux de Paris (AP-HP), Garches, France
| | - Jean-Pierre Lévesque
- Mater Research Institute-The University of Queensland, Translational Research Institute, Woolloongabba, Australia
| | - Kylie A Alexander
- Mater Research Institute-The University of Queensland, Translational Research Institute, Woolloongabba, Australia
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Schary Y, Rotem I, Caller T, Lewis N, Shaihov-Teper O, Brzezinski RY, Lendengolts D, Raanani E, Sternik L, Naftali-Shani N, Leor J. CRISPR-Cas9 editing of TLR4 to improve the outcome of cardiac cell therapy. Sci Rep 2023; 13:4481. [PMID: 36934130 PMCID: PMC10024743 DOI: 10.1038/s41598-023-31286-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 03/09/2023] [Indexed: 03/20/2023] Open
Abstract
Inflammation and fibrosis limit the reparative properties of human mesenchymal stromal cells (hMSCs). We hypothesized that disrupting the toll-like receptor 4 (TLR4) gene would switch hMSCs toward a reparative phenotype and improve the outcome of cell therapy for infarct repair. We developed and optimized an improved electroporation protocol for CRISPR-Cas9 gene editing. This protocol achieved a 68% success rate when applied to isolated hMSCs from the heart and epicardial fat of patients with ischemic heart disease. While cell editing lowered TLR4 expression in hMSCs, it did not affect classical markers of hMSCs, proliferation, and migration rate. Protein mass spectrometry analysis revealed that edited cells secreted fewer proteins involved in inflammation. Analysis of biological processes revealed that TLR4 editing reduced processes linked to inflammation and extracellular organization. Furthermore, edited cells expressed less NF-ƙB and secreted lower amounts of extracellular vesicles and pro-inflammatory and pro-fibrotic cytokines than unedited hMSCs. Cell therapy with both edited and unedited hMSCs improved survival, left ventricular remodeling, and cardiac function after myocardial infarction (MI) in mice. Postmortem histologic analysis revealed clusters of edited cells that survived in the scar tissue 28 days after MI. Morphometric analysis showed that implantation of edited cells increased the area of myocardial islands in the scar tissue, reduced the occurrence of transmural scar, increased scar thickness, and decreased expansion index. We show, for the first time, that CRISPR-Cas9-based disruption of the TLR4-gene reduces pro-inflammatory polarization of hMSCs and improves infarct healing and remodeling in mice. Our results provide a new approach to improving the outcomes of cell therapy for cardiovascular diseases.
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Affiliation(s)
- Yeshai Schary
- Neufeld and Tamman Cardiovascular Research Institutes, Sheba Medical Center, Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
- Heart Center, Sheba Medical Center, 52621, Tel-Hashomer, Israel
| | - Itai Rotem
- Neufeld and Tamman Cardiovascular Research Institutes, Sheba Medical Center, Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
- Heart Center, Sheba Medical Center, 52621, Tel-Hashomer, Israel
| | - Tal Caller
- Neufeld and Tamman Cardiovascular Research Institutes, Sheba Medical Center, Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
- Heart Center, Sheba Medical Center, 52621, Tel-Hashomer, Israel
| | - Nir Lewis
- Neufeld and Tamman Cardiovascular Research Institutes, Sheba Medical Center, Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
- Heart Center, Sheba Medical Center, 52621, Tel-Hashomer, Israel
| | - Olga Shaihov-Teper
- Neufeld and Tamman Cardiovascular Research Institutes, Sheba Medical Center, Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
- Heart Center, Sheba Medical Center, 52621, Tel-Hashomer, Israel
| | - Rafael Y Brzezinski
- Neufeld and Tamman Cardiovascular Research Institutes, Sheba Medical Center, Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
- Heart Center, Sheba Medical Center, 52621, Tel-Hashomer, Israel
| | - Daria Lendengolts
- Neufeld and Tamman Cardiovascular Research Institutes, Sheba Medical Center, Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
- Heart Center, Sheba Medical Center, 52621, Tel-Hashomer, Israel
| | - Ehud Raanani
- Heart Center, Sheba Medical Center, 52621, Tel-Hashomer, Israel
- Department of Cardiac Surgery, Leviev Cardiothoracic and Vascular Center, Sheba Medical Center, Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Leonid Sternik
- Heart Center, Sheba Medical Center, 52621, Tel-Hashomer, Israel
- Department of Cardiac Surgery, Leviev Cardiothoracic and Vascular Center, Sheba Medical Center, Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Nili Naftali-Shani
- Neufeld and Tamman Cardiovascular Research Institutes, Sheba Medical Center, Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
- Heart Center, Sheba Medical Center, 52621, Tel-Hashomer, Israel
| | - Jonathan Leor
- Neufeld and Tamman Cardiovascular Research Institutes, Sheba Medical Center, Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel.
- Heart Center, Sheba Medical Center, 52621, Tel-Hashomer, Israel.
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Liu Z, Zeng F, Zhang Y, Liu Y, Li Z, Liu X. Future perspective of stem cell-derived exosomes: Cell-free therapeutic strategies for retinal degeneration. Front Bioeng Biotechnol 2022; 10:905516. [PMID: 36452207 PMCID: PMC9702331 DOI: 10.3389/fbioe.2022.905516] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2022] [Accepted: 10/25/2022] [Indexed: 04/26/2024] Open
Abstract
With continued expansion of the aged population, the number of patients with retinal degeneration, which is a leading cause of vision loss worldwide, is growing. Stem cell therapies offer hope for regeneration and repair of damaged retinal tissue. Recent reports have highlighted stem cell-derived paracrine mediators, such as exosomes, which appear to exert a therapeutic benefit similar to their cell of origin and do not carry the risk of cell transplantation. One speculated role is that exosomes likely mediate intercellular communication and material exchange. This review depicts the molecular mechanisms underlying exosome-based therapy, especially in retina degeneration diseases. In the future, the use of stem cell-derived exosomes could be considered a novel and cell-free therapeutic strategy in regenerative medicine.
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Affiliation(s)
- Zibin Liu
- Department of Ophthalmology, The Second Xiangya Hospital, Central South University, Changsha, China
- Hunan Clinical Research Center of Ophthalmic Disease, Changsha, China
| | - Fang Zeng
- Department of Ophthalmology, The Second Xiangya Hospital, Central South University, Changsha, China
- Hunan Clinical Research Center of Ophthalmic Disease, Changsha, China
| | - Yao Zhang
- Department of Neurology, Hunan Provincial People’s Hospital, Hunan Normal University, Changsha, China
| | - Yongqing Liu
- Department of Medicine, University of Louisville School of Medicine, Louisville, KY, United States
| | - Zhuo Li
- Department of Ophthalmology, The Second Xiangya Hospital, Central South University, Changsha, China
- Hunan Clinical Research Center of Ophthalmic Disease, Changsha, China
| | - Xiao Liu
- Department of Ophthalmology, The Second Xiangya Hospital, Central South University, Changsha, China
- Hunan Clinical Research Center of Ophthalmic Disease, Changsha, China
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The Controversial Role of LPS in Platelet Activation In Vitro. Int J Mol Sci 2022; 23:ijms231810900. [PMID: 36142813 PMCID: PMC9505944 DOI: 10.3390/ijms231810900] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 09/12/2022] [Accepted: 09/13/2022] [Indexed: 11/16/2022] Open
Abstract
Circulating platelets are responsible for hemostasis and thrombosis but are also primary sensors of pathogens and are involved in innate immunity, inflammation, and sepsis. Sepsis is commonly caused by an exaggerated immune response to bacterial, viral, and fungal infections, and leads to severe thrombotic complications. Among others, the endotoxin lipopolysaccharide (LPS) found in the outer membrane of Gram-negative bacteria is the most common trigger of sepsis. Since the discovery of the expression of the LPS receptor TLR4 in platelets, several studies have investigated the ability of LPS to induce platelet activation and to contribute to a prothrombotic phenotype, per se or in combination with plasma proteins and platelet agonists. This issue, however, is still controversial, as different sources, purity, and concentrations of LPS, different platelet-purification protocols, and different methods of analysis have been used in the past two decades, giving contradictory results. This review summarizes and critically analyzes past and recent publications about LPS-induced platelet activation in vitro. A methodological section illustrates the principal platelet preparation protocols and significant differences. The ability of various sources of LPS to elicit platelet activation in terms of aggregation, granule secretion, cytokine release, ROS production, and interaction with leukocytes and NET formation is discussed.
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Moslemizadeh A, Nematollahi MH, Amiresmaili S, Faramarz S, Jafari E, Khaksari M, Rezaei N, Bashiri H, Kheirandish R. Combination therapy with interferon-gamma as a potential therapeutic medicine in rat's glioblastoma: A multi-mechanism evaluation. Life Sci 2022; 305:120744. [PMID: 35798069 DOI: 10.1016/j.lfs.2022.120744] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Revised: 06/16/2022] [Accepted: 06/26/2022] [Indexed: 11/16/2022]
Abstract
BACKGROUND This study assessed the effects of single or combined administration of temozolomide (TMZ) and interferon-gamma (IFN-ᵞ) on anxiety-like behaviors, balance disorders, learning and memory, TNF-α, IL-10, some oxidant and antioxidants factors with investigating the toll-like receptor-4 (TLR4) and p-CREB signaling pathway in C6-induced glioblastoma of rats. METHODS 40 male Sprague-Dawley rats bearing intra-caudate nucleus (CN) culture medium or C6 inoculation were randomly divided into five groups as follows: Sham, Tumor, TMZ, IFN-ᵞ and a TMZ + IFN-ᵞ combination. The open-field test (OFT), elevated plus maze (EPM), rotarod, and passive avoidance test (PAT) were done on days 14-17. On day 17 after tumor implantation, brain tissues were extracted for histopathological evaluation. TNF-α, IL-10, SOD, GPX, TAC, MDA, the protein level of TLR4 and p-CREB was measured. RESULTS Combination therapy inhibited the growth of the tumor. Treatment groups alleviated tumor-induced anxiety-like behaviors and improved imbalance and memory impairment. SOD, GPX, and TAC decreased in the tumor group. The combination group augmented GPX and TAC. MDA decreased in treatment groups. TMZ, IFN-ᵞ reduced tumor-increased TNF-α and IL-10 level. The combination group declined TNF-α level in serum and IL-10 level in serum and brain. Glioblastoma induced significant upregulation of TLR4 and p-CREB in the brain which inhibited by IFN-ᵞ and TMZ+ IFN-ᵞ. CONCLUSION The beneficial effects of TMZ, IFN-ᵞ, and TMZ+ IFN-ᵞ on neurocognitive functioning of rats with C6-induced glioblastoma may be mediated via modulating oxidative stress, reduced cytokines, and the downregulation of expression of TLR4 and p-CREB. Combination treatment appears to be more effective than single treatment.
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Affiliation(s)
| | - Mohammad Hadi Nematollahi
- Physiology Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
| | | | - Sanaz Faramarz
- Student Research Committee, Kerman University of Medical Sciences, Kerman, Iran
| | - Elham Jafari
- Pathology and Stem Cell Research Center, Department of Pathology, Kerman University of Medical Sciences, Kerman, Iran
| | - Mohammad Khaksari
- Endocrinology and Metabolism Research Center, Institute of Basic and Clinical Physiology Sciences, Kerman University of Medical Sciences, Kerman, Iran
| | - Nima Rezaei
- Research Center for Immunodeficiencies, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Hamideh Bashiri
- Neuroscience Research Center, Institute of Neuropharmacology, Department of Physiology and Pharmacology, Afzalipour School of Medicine, Kerman University of Medical Sciences, Kerman, Iran.
| | - Reza Kheirandish
- Faculty of Veterinary Medicine, Shahid Bahonar University of Kerman, Kerman, Iran.
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Fernández-Rojas M, Rodríguez L, Trostchansky A, Fuentes E. Regulation of platelet function by natural bioactive compounds. FOOD BIOSCI 2022. [DOI: 10.1016/j.fbio.2022.101742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Yu J, Chen S, Lei S, Li F, Wang Y, Shu X, Xu W, Tang X. The Effects of Porphyromonas gingivalis on Inflammatory and Immune Responses and Osteogenesis of Mesenchymal Stem Cells. Stem Cells Dev 2021; 30:1191-1201. [PMID: 34628938 DOI: 10.1089/scd.2021.0068] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Mesenchymal stem cells (MSCs) are increasingly used in tissue regeneration, not only because of their multilineage differentiation ability, but also because of their immunomodulatory function, which allows them to play a role in the inflammatory milieu, especially in periodontitis. Porphyromonas gingivalis (P. gingivalis) is an important pathogen associated with the progression of periodontitis. Heterogeneous MSC sources show differences in their inflammatory-immune responsiveness and osteogenesis capabilities when exposed to P. gingivalis and its virulence factors. This article reviews the promoted inflammatory and immune responses of periodontal ligament stem cells, which are potential pitfalls in bone regeneration. MSCs from other sources showed contradictory inflammatory and immune reactions in the few studies on this topic. We also summarize the mechanisms involved in the inflammatory, immune responses and osteogenic potential of MSCs exposed to P. gingivalis and its virulence factors to inform an improved utilization of MSCs in regenerative therapies for periodontitis.
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Affiliation(s)
- Jingjun Yu
- Department of Periodontics, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, China
| | - Shuangshuang Chen
- Department of Periodontics, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, China
| | - Shuang Lei
- Department of Periodontics, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, China
| | - Fulong Li
- Department of Periodontics, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, China
| | - Yan Wang
- Department of Periodontics, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, China
| | - Xiufang Shu
- Department of Periodontics, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, China
| | - Wanlin Xu
- Department of Periodontics, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, China
| | - Xiaolin Tang
- Department of Periodontics, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, China
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Cai J, Qi H, Yao K, Yao Y, Jing D, Liao W, Zhao Z. Non-Coding RNAs Steering the Senescence-Related Progress, Properties, and Application of Mesenchymal Stem Cells. Front Cell Dev Biol 2021; 9:650431. [PMID: 33816501 PMCID: PMC8017203 DOI: 10.3389/fcell.2021.650431] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Accepted: 02/12/2021] [Indexed: 02/05/2023] Open
Abstract
The thirst to postpone and even reverse aging progress has never been quenched after all these decades. Unequivocally, mesenchymal stem cells (MSCs), with extraordinary abilities such as self-renewal and multi-directional differentiation, deserve the limelight in this topic. Though having several affable clinical traits, MSCs going through senescence would, on one hand, contribute to age-related diseases and, on the other hand, lead to compromised or even counterproductive therapeutical outcomes. Notably, increasing evidence suggests that non-coding RNAs (ncRNAs) could invigorate various regulatory processes. With even a slight dip or an uptick of expression, ncRNAs would make a dent in or even overturn cellular fate. Thereby, a systematic illustration of ncRNAs identified so far to steer MSCs during senescence is axiomatically an urgent need. In this review, we introduce the general properties and mechanisms of senescence and its relationship with MSCs and illustrate the ncRNAs playing a role in the cellular senescence of MSCs. It is then followed by the elucidation of ncRNAs embodied in extracellular vesicles connecting senescent MSCs with other cells and diversified processes in and beyond the skeletal system. Last, we provide a glimpse into the clinical methodologies of ncRNA-based therapies in MSC-related fields. Hopefully, the intricate relationship between senescence and MSCs will be revealed one day and our work could be a crucial stepping-stone toward that future.
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Affiliation(s)
- Jingyi Cai
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Hexu Qi
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Ke Yao
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yang Yao
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, Department of Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Dian Jing
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Wen Liao
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,Department of Orthodontics, Osaka Dental University, Hirakata, Japan
| | - Zhihe Zhao
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
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11
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Vallance TM, Sheard JJ, Meng Y, Torre EC, Patel K, Widera D, Vaiyapuri S. Development and characterization of a novel, megakaryocyte NF-κB reporter cell line for investigating inflammatory responses. J Thromb Haemost 2021; 19:107-120. [PMID: 33037735 DOI: 10.1111/jth.15118] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 08/27/2020] [Accepted: 09/24/2020] [Indexed: 11/27/2022]
Abstract
Essentials An easily detectable readout in megakaryocyte cell lines will enhance inflammatory research in these cells. Here, we report the development and characterization of a novel megakaryocyte NF-κB-reporter cell line (Meg-01R). Multiple inflammatory molecules modulate NF-κB activity in Meg-01R cells. Meg-01R cells respond to small molecule inhibitors such as IMD0354 and C87 that are known to inhibit NF-κB activity upon stimulation with TNFα. ABSTRACT: Background Because of the difficulties in acquiring large numbers of megakaryocytes, the impact of inflammatory responses on these cells and their ability to produce fully functional platelets under various pathological conditions has not been investigated in detail. Objectives The primary objective of this study is to develop and functionally characterize a novel megakaryocyte nuclear factor κB (NF-κB) reporter cell line to determine the effects of various inflammatory molecules on megakaryocytes and their signalling pathways. Methods A Meg-01-NF-κB-GFP-Luc (Meg-01R) cell line was developed by inserting a reporter NF-κB-GFP-Luc cassette into normal Meg-01 cells to produce luciferase following activation of NF-κB to enable easy detection of pro-inflammatory and reparative signalling. Results and conclusions Meg-01 and Meg-01R cells have comparable characteristics, including the expression of both GPIbα and integrin β3 . Meg-01R cells responded to various inflammatory molecules as measured by NF-κB-dependent bioluminescence. For example, inflammatory molecules such as tumor necrosis factor-α and Pam3CSK4 increased NF-κB activity, whereas an antimicrobial peptide, LL37, reduced its activity. Meg-01R cells were also found to be sensitive to inhibitors (IMD0354 and C87) of inflammatory pathways. Notably, Meg-01R cells were able to respond to lipopolysaccharide (LPS; non-ultrapure), although it was not able to react to ultrapure LPS because of the lack of sufficient TLR4 molecules on their surface. For the first time, we report the development and characterization of a novel megakaryocyte NF-κB reporter cell line (Meg-01R) as a robust tool to study the inflammatory responses/signalling of megakaryocytes upon stimulation with a broad range of inflammatory molecules that can affect NF-κB activity.
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Affiliation(s)
| | | | - Yiming Meng
- School of Pharmacy, University of Reading, Reading, UK
| | | | - Ketan Patel
- School of Biological Sciences, University of Reading, Reading, UK
| | - Darius Widera
- School of Pharmacy, University of Reading, Reading, UK
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12
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Yotsumoto F, Iwaguro H, Harada Y, Sobajima S, Suwabe T, Miyamoto S. Adipose tissue-derived regenerative cells improve implantation of fertilized eggs in thin endometrium. Regen Med 2020; 15:1891-1904. [DOI: 10.2217/rme-2020-0037] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Aim: Embryo implantation and subsequent pregnancy depends on endometrial thickness. To investigate potential fertility strategies for women with thin endometrium, we explored the efficacy of adipose tissue-derived regenerative cells (ADRCs) on thin endometrium and embryo implantation in a mouse model. Materials & methods: ADRCs isolated from mouse subcutaneous fat were characterized by flow cytometry. Endometrium thickness, endometrial fibrosis, embryo implantation and angiogenesis factors were evaluated in uterine cavities of ethanol-induced thin endometrium mice with ADRC transplantation. Results: ADRCs included adipose-derived stem cells and some blood vessel component cells. ADRCs improved endometrial thickness, endometrial fibrosis and embryo implantation and augmented vascular endothelial growth factor expression in the mouse uterine. Conclusion: ADRCs may be a useful therapeutic strategy to improve fertility of women with thin endometrium.
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Affiliation(s)
- Fusanori Yotsumoto
- Department of Obstetrics & Gynecology, Faculty of Medicine, Fukuoka University, Fukuoka, Japan
| | - Hideki Iwaguro
- Department of Obstetrics & Gynecology, Faculty of Medicine, Fukuoka University, Fukuoka, Japan
- SOBAJIMA Clinic, Osaka, Japan
| | | | | | - Takako Suwabe
- Department of Obstetrics & Gynecology, Faculty of Medicine, Fukuoka University, Fukuoka, Japan
| | - Shingo Miyamoto
- Department of Obstetrics & Gynecology, Faculty of Medicine, Fukuoka University, Fukuoka, Japan
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13
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Choi H, Kim Y, Kang D, Kwon A, Kim J, Min Kim J, Park SS, Kim YJ, Min CK, Kim M. Common and different alterations of bone marrow mesenchymal stromal cells in myelodysplastic syndrome and multiple myeloma. Cell Prolif 2020; 53:e12819. [PMID: 32372504 PMCID: PMC7260074 DOI: 10.1111/cpr.12819] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Revised: 03/13/2020] [Accepted: 04/11/2020] [Indexed: 12/12/2022] Open
Abstract
Objective The objective of this study was to explore characteristics of bone marrow mesenchymal stromal cells (BM‐MSCs) derived from patients with myelodysplastic syndrome (MDS) and multiple myeloma (MM). Methods BM‐MSCs were recovered from 17 of MDS patients, 23 of MM patients and 9 healthy donors and were passaged until proliferation stopped. General characteristics and gene expression profiles of MSCs were analysed. In vitro, ex vivo coculture, immunohistochemistry and knockdown experiments were performed to verify gene expression changes. Results BM‐MSCs failed to culture in 35.0% of patients and 50.0% of recovered BM‐MSCs stopped to proliferate before passage 6. MDS‐ and MM‐MSCs shared characteristics including decreased osteogenesis, increased angiogenesis and senescence‐associated molecular pathways. In vitro and ex vivo experiments showed disease‐specific changes such as neurogenic tendency in MDS‐MSCs and cardiomyogenic tendency in MM‐MSCs. Although the age of normal control was younger than patients and telomere length was shorter in patient's BM‐MSCs, they were not different according to disease category nor degree of proliferation. Specifically, poorly proliferation BM‐MSCs showed CDKN2A overexpression and CXCL12 downregulation. Immunohistochemistry of BM biopsy demonstrated that CDKN2A was intensely accumulation in perivascular BM‐MSCs failed to culture. Interestingly, patient's BM‐MSCs revealed improved proliferation activity after CDKN2A knockdown. Conclusion These results collectively indicate that MDS‐MSCs and MM‐MSCs have common and different alterations at various degrees. Hence, it is necessary to evaluate their alteration status using representative markers such as CDKN2A expression.
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Affiliation(s)
- Hayoung Choi
- Catholic Genetic Laboratory Center, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.,Department of Biomedicine & Health Sciences, Graduate School, The Catholic University of Korea, Seoul, Korea
| | - Yonggoo Kim
- Catholic Genetic Laboratory Center, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.,Department of Laboratory Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Dain Kang
- Catholic Genetic Laboratory Center, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Ahlm Kwon
- Catholic Genetic Laboratory Center, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Jiyeon Kim
- Catholic Genetic Laboratory Center, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | | | - Sung-Soo Park
- Department of Hematology, Leukemia Research Institute, Seoul St. Mary's Hematology Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Yoo-Jin Kim
- Department of Hematology, Leukemia Research Institute, Seoul St. Mary's Hematology Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Chang-Ki Min
- Department of Hematology, Leukemia Research Institute, Seoul St. Mary's Hematology Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Myungshin Kim
- Catholic Genetic Laboratory Center, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.,Department of Biomedicine & Health Sciences, Graduate School, The Catholic University of Korea, Seoul, Korea.,Department of Laboratory Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
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14
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Litak J, Grochowski C, Litak J, Osuchowska I, Gosik K, Radzikowska E, Kamieniak P, Rolinski J. TLR-4 Signaling vs. Immune Checkpoints, miRNAs Molecules, Cancer Stem Cells, and Wingless-Signaling Interplay in Glioblastoma Multiforme-Future Perspectives. Int J Mol Sci 2020; 21:ijms21093114. [PMID: 32354122 PMCID: PMC7247696 DOI: 10.3390/ijms21093114] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 04/23/2020] [Accepted: 04/24/2020] [Indexed: 02/06/2023] Open
Abstract
Toll-like-receptor (TLR) family members were detected in the central nervous system (CNS). TLR occurrence was noticed and widely described in glioblastomamultiforme (GBM) cells. After ligand attachment, TLR-4 reorients domains and dimerizes, activates an intracellular cascade, and promotes further cytoplasmatic signaling. There is evidence pointing at a strong relation between TLR-4 signaling and micro ribonucleic acid (miRNA) expression. The TLR-4/miRNA interplay changes typical signaling and encourages them to be a target for modern immunotherapy. TLR-4 agonists initiate signaling and promote programmed death ligand-1 (PD-1L) expression. Most of those molecules are intensively expressed in the GBM microenvironment, resulting in the autocrine induction of regional immunosuppression. Another potential target for immunotreatment is connected with limited TLR-4 signaling that promotes Wnt/DKK-3/claudine-5 signaling, resulting in a limitation of GBM invasiveness. Interestingly, TLR-4 expression results in bordering proliferative trends in cancer stem cells (CSC) and GBM. All of these potential targets could bring new hope for patients suffering from this incurable disease. Clinical trials concerning TLR-4 signaling inhibition/promotion in many cancers are recruiting patients. There is still a lot to do in the field of GBM immunotherapy.
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Affiliation(s)
- Jakub Litak
- Department of Neurosurgery and Pediatric Neurosurgery, Medical University of Lublin, 20-954 Lublin, Poland
- Department of Immunology, Medical University of Lublin, 20-093 Lublin, Poland
| | - Cezary Grochowski
- Department of Anatomy, Medical University of Lublin, 20-090 Lublin, Poland
- Laboratory of Virtual Man, Department of Anatomy, Medical University of Lublin, 20-090 Lublin, Poland
- Correspondence:
| | - Joanna Litak
- St. John‘s Cancer Center in Lublin, 20-090 Lublin, Poland
| | - Ida Osuchowska
- Department of Anatomy, Medical University of Lublin, 20-090 Lublin, Poland
| | - Krzysztof Gosik
- Department of Immunology, Medical University of Lublin, 20-093 Lublin, Poland
| | | | - Piotr Kamieniak
- Department of Immunology, Medical University of Lublin, 20-093 Lublin, Poland
| | - Jacek Rolinski
- Department of Immunology, Medical University of Lublin, 20-093 Lublin, Poland
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15
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Vallance TM, Ravishankar D, Albadawi DAI, Layfield H, Sheard J, Vaiyapuri R, Dash P, Patel K, Widera D, Vaiyapuri S. Effect of ultrapure lipopolysaccharides derived from diverse bacterial species on the modulation of platelet activation. Sci Rep 2019; 9:18258. [PMID: 31796818 PMCID: PMC6890654 DOI: 10.1038/s41598-019-54617-w] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Accepted: 11/18/2019] [Indexed: 11/09/2022] Open
Abstract
Platelets are small circulating blood cells that play essential roles in the maintenance of haemostasis via blood clotting. However, they also play critical roles in the regulation of innate immune responses. Inflammatory receptors, specifically Toll-like receptor (TLR)-4, have been reported to modify platelet reactivity. A plethora of studies have reported controversial functions of TLR4 in the modulation of platelet function using various chemotypes and preparations of its ligand, lipopolysaccharide (LPS). The method of preparation of LPS may explain these discrepancies however this is not fully understood. Hence, to determine the impact of LPS on platelet activation, we used ultrapure preparations of LPS from Escherichia coli (LPSEC), Salmonella minnesota (LPSSM), and Rhodobacter sphaeroides (LPSRS) and examined their actions under diverse experimental conditions in human platelets. LPSEC did not affect platelet activation markers such as inside-out signalling to integrin αIIbβ3 or P-selectin exposure upon agonist-induced activation in platelet-rich plasma or whole blood whereas LPSSM and LPSRS inhibited platelet activation under specific conditions at supraphysiological concentrations. Overall, our data demonstrate that platelet activation is not largely influenced by any of the ultrapure LPS chemotypes used in this study on their own except under certain conditions.
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Affiliation(s)
- Thomas M Vallance
- School of Pharmacy, University of Reading, Reading, RG6 6UB, United Kingdom
| | | | - Dina A I Albadawi
- School of Pharmacy, University of Reading, Reading, RG6 6UB, United Kingdom
| | - Harry Layfield
- School of Pharmacy, University of Reading, Reading, RG6 6UB, United Kingdom
| | - Jonathan Sheard
- Stem Cell Biology and Regenerative Medicine Group, School of Pharmacy, University of Reading, Reading, RG6 6UB, United Kingdom.,Sheard BioTech Ltd, 20-22, Wenlock Road, London, N1 7GU, United Kingdom
| | | | - Philip Dash
- School of Biological Sciences, University of Reading, Reading, RG6 6UB, United Kingdom
| | - Ketan Patel
- School of Biological Sciences, University of Reading, Reading, RG6 6UB, United Kingdom
| | - Darius Widera
- Stem Cell Biology and Regenerative Medicine Group, School of Pharmacy, University of Reading, Reading, RG6 6UB, United Kingdom
| | - Sakthivel Vaiyapuri
- School of Pharmacy, University of Reading, Reading, RG6 6UB, United Kingdom.
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16
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Alexander ET, Mariner K, Borodyanskaya Y, Minton A, Gilmour SK. Polyamine-stimulation of arsenic-transformed keratinocytes. Carcinogenesis 2019; 40:1042-1051. [PMID: 31190067 PMCID: PMC6735862 DOI: 10.1093/carcin/bgz115] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Revised: 06/04/2019] [Accepted: 06/11/2019] [Indexed: 12/16/2022] Open
Abstract
Tumor promotion is strongly associated with inflammation and increased polyamine levels. Our understanding of relevant mechanisms responsible for arsenic-induced cancer remains limited. Previous studies suggest that arsenic targets and dysregulates stem cell populations that remain dormant in the skin until promoted to be recruited out of the bulge stem cell region, thus giving rise to skin tumors. In this study, we explored a possible mechanism by which increased keratinocyte polyamine biosynthesis promotes tumorsphere formation and invasiveness of arsenic-transformed HaCaT keratinocytes (As-HaCaT). Unlike parental HaCaT cells, As-HaCaT cells were tumorigenic in athymic nude mice, and the CD45negative epithelial tumor cells had enriched expression of Toll-Like Receptor 4 (TLR4), CD34 and CXCR4 as did As-HaCaT tumorsphere cultures compared to As-HaCaT monolayer cultures. Ornithine decarboxylase (ODC) overexpressing keratinocytes (Ker/ODC) release increased levels of the alarmin high mobility group box 1 (HMGB1). Ker/ODC conditioned medium (CM) stimulated As-HaCaT but not parental HaCaT tumorsphere formation, and this was inhibited by glycyrrhizin, an inhibitor of HMGB1, and by TAK242, an inhibitor of the HMGB1 receptor TLR4. Compared to parental HaCaT cells, As-HaCaT cells demonstrated greater invasiveness across a Matrigel-coated filter using either fibroblast CM or SDF-1α as chemoattractants. Addition of Ker/ODC CM or HMGB1 dramatically increased As-HaCaT invasiveness. Glycyrrhizin and TAK242 inhibited this Ker/ODC CM-stimulated invasion of As-HaCaT cells but not HaCaT cells. These results show that polyamine-dependent release of HMGB1 promotes the expansion of stem cell-like subpopulations in arsenic-transformed keratinocytes while also increasing their invasiveness, suggesting that polyamines may be a potential therapeutic target for the prevention and treatment of arsenic-initiated skin cancers.
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Affiliation(s)
- Eric T Alexander
- Department of Molecular Carcinogenesis, Lankenau Institute for Medical Research, Wynnewood, PA, USA
| | - Kelsey Mariner
- Department of Molecular Carcinogenesis, Lankenau Institute for Medical Research, Wynnewood, PA, USA
| | - Yelizaveta Borodyanskaya
- Department of Molecular Carcinogenesis, Lankenau Institute for Medical Research, Wynnewood, PA, USA
| | - Allyson Minton
- Department of Molecular Carcinogenesis, Lankenau Institute for Medical Research, Wynnewood, PA, USA
| | - Susan K Gilmour
- Department of Molecular Carcinogenesis, Lankenau Institute for Medical Research, Wynnewood, PA, USA
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17
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Chen CL, Guo HR, Wang YJ, Chang HT, Pan CY, Tuan-Mu HY, Lin HC, Chen CY, Hu JJ. Combination of inductive effect of lipopolysaccharide and in situ mechanical conditioning for forming an autologous vascular graft in vivo. Sci Rep 2019; 9:10616. [PMID: 31337832 PMCID: PMC6650437 DOI: 10.1038/s41598-019-47054-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Accepted: 07/08/2019] [Indexed: 01/15/2023] Open
Abstract
Autologous vascular grafts have the advantages of better biocompatibility and prognosis. However, previous studies that implanted bare polymer tubes in animals to grow autologous tubular tissues were limited by their poor yield rates and stability. To enhance the yield rate of the tubular tissue, we employed a design with the addition of overlaid autologous whole blood scaffold containing lipopolysaccharides (LPS). Furthermore, we applied in vivo dynamic mechanical stimuli through cyclically inflatable silicone tube to improve the mechanical properties of the harvested tissues. The effectiveness of the modification was examined by implanting the tubes in the peritoneal cavity of rats. A group without mechanical stimuli served as the controls. After 24 days of culture including 16 days of cyclic mechanical stimuli, we harvested the tubular tissue forming on the silicone tube for analysis or further autologous interposition vascular grafting. In comparison with those without cyclic dynamic stimuli, tubular tissues with this treatment during in vivo culture had stronger mechanical properties, better smooth muscle differentiation, and more collagen and elastin expression by the end of incubation period in the peritoneal cavity. The grafts remained patent after 4 months of implantation and showed the presence of endothelial and smooth muscle cells. This model shows a new prospect for vascular tissue engineering.
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Affiliation(s)
- Chao-Lin Chen
- Department of Biomedical Engineering, National Cheng Kung University, Tainan, Taiwan.,Department of Occupational Medicine, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
| | - How-Ran Guo
- Department of Environmental and Occupational Health, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Department of Occupational and Environmental Medicine, National Cheng Kung University Hospital, Tainan, Taiwan
| | - Ying-Jan Wang
- Department of Environmental and Occupational Health, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Hong-Tai Chang
- Division of General Surgery, Department of Surgery, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
| | - Chui-Yi Pan
- Chest Hospital, Ministry of Health and Welfare, Tainan, Taiwan
| | - Ho-Yi Tuan-Mu
- Department of Physical Therapy, Tzu Chi University, Hualien, Taiwan
| | - Hsiu-Chuan Lin
- Department of Biomedical Engineering, National Cheng Kung University, Tainan, Taiwan
| | - Chao-Yi Chen
- Department of Biomedical Engineering, National Cheng Kung University, Tainan, Taiwan
| | - Jin-Jia Hu
- Department of Biomedical Engineering, National Cheng Kung University, Tainan, Taiwan. .,Medical Device Innovation Center, National Cheng Kung University, Tainan, Taiwan.
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18
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Megías J, Martínez A, San-Miguel T, Gil-Benso R, Muñoz-Hidalgo L, Albert-Bellver D, Carratalá A, Gozalbo D, López-Ginés C, Gil ML, Cerdá-Nicolás M. Pam3CSK4, a TLR2 ligand, induces differentiation of glioblastoma stem cells and confers susceptibility to temozolomide. Invest New Drugs 2019; 38:299-310. [DOI: 10.1007/s10637-019-00788-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Accepted: 05/06/2019] [Indexed: 12/11/2022]
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19
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Xu W, Hu GQ, Da Costa C, Tang JH, Li QR, Du L, Pan YW, Lv SQ. Long noncoding RNA UBE2R2-AS1 promotes glioma cell apoptosis via targeting the miR-877-3p/TLR4 axis. Onco Targets Ther 2019; 12:3467-3480. [PMID: 31123407 PMCID: PMC6511244 DOI: 10.2147/ott.s201732] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Accepted: 03/25/2019] [Indexed: 11/28/2022] Open
Abstract
Introduction: Brain glioma is the most common type of primary malignancy in the central nervous system (CNS), with high recurrence and mortality rate, especially glioblastoma (GBM). Recent evidence suggests a role for many long noncoding RNAs (lncRNAs) in the pathogenesis, proliferation, apoptosis, metastasis, and chemotherapeutic resistance of cancer cells. Although the functions of some lncRNAs in the occurrence and development of gliomas have been confirmed, detailed mechanisms of action are lacking. Furthermore, the biological roles of many other lncRNAs in glioma have not been reported at all. Methods: In this study, we identified a novel lncRNA, UBE2R2-AS1, which was dramatically downregulated in glioma compared with normal tissue, by performing microarray detection of six pairs of glioma samples and adjacent normal tissues. In vitro experiments demonstrated that UBE2R2-AS1 regulated glioma cell proliferation, apoptosis, and migration. Results: UBE2R2-AS1 acted as a competing endogenous RNA (ceRNA) to target Toll-like receptor 4 (TLR4) mRNA by binding to miR-877-3p. Furthermore, lncRNA UBE2R2-AS1 suppressed glioblastoma cell growth, migration, and invasion, as well as promoting cell apoptosis by targeting miR-877-3p/TLR4 directly. Conclusion: This information regarding UBE2R2-AS1 and its glioma-related molecular mechanisms will aid the future identification of new lncRNA-directed diagnostics and drug-targeting therapies.
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Affiliation(s)
- Wu Xu
- Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, Changsha 410078, People's Republic of China
| | - Guo-Qing Hu
- Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, Changsha 410078, People's Republic of China
| | - Clive Da Costa
- Adult Stem Cell Laboratory, The Francis Crick Institute, London NW1 1AT, UK
| | - Jun-Hai Tang
- Department of Neurosurgery, Xinqiao Hospital, Third Military Medical University, Chongqing 400037, People's Republic of China
| | - Qing-Rui Li
- Biobank of Institute of Pathology, Southwest Hospital, Third Military Medical University, Chongqing 400037, People's Republic of China
| | - Lei Du
- Department of Neurosurgery, The 42nd Hospital of the Chinese People's Liberation Army, Leshan City, Sichuan 614100, People's Republic of China
| | - Ya-Wen Pan
- Department of Neurosurgery, The Second Hospital of Lanzhou University, Lanzhou 730030, People's Republic of China
| | - Sheng-Qing Lv
- Department of Neurosurgery, Xinqiao Hospital, Third Military Medical University, Chongqing 400037, People's Republic of China
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20
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Bernardini C, Bertocchi M, Zannoni A, Salaroli R, Tubon I, Dothel G, Fernandez M, Bacci ML, Calzà L, Forni M. Constitutive and LPS-stimulated secretome of porcine Vascular Wall-Mesenchymal Stem Cells exerts effects on in vitro endothelial angiogenesis. BMC Vet Res 2019; 15:123. [PMID: 31029157 PMCID: PMC6487069 DOI: 10.1186/s12917-019-1873-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Accepted: 04/16/2019] [Indexed: 12/20/2022] Open
Abstract
Background MSCs secretome is under investigation as an alternative to whole-cell-based therapies, since it is enriched of bioactive molecules: growth factors, cytokines and chemokines. Taking into account the translational value of the pig model, the leading aim of the present paper was to characterize the secretome of porcine Vascular Wall–Mesenchymal Stem Cells (pVW-MSCs) and its change in presence of LPS stimulation. Moreover, considering the importance of angiogenesis in regenerative mechanisms, we analysed the effect of pVW-MSCs secretome on in vitro angiogenesis. Results Our results demonstrated that conditioned medium from unstimulated pVW-MSCs contained high levels of IL-8, GM-CSF, IFN-γ and other immunomodulatory proteins: IL-6 IL-18 IL-4 IL-2 IL-10. LPS modulates pVW-MSCs gene expression and secretome composition, in particular a significant increase of IL-6 and IL-8 was observed; conversely, the amount of GM-CSF, IFN-γ, IL-2, IL-4, IL-10 and IL-18 showed a significant transient decrease with the LPS stimulation. Conditioned medium from unstimulated pVW-MSCs induced in vitro endothelial angiogenesis, which is more evident when the conditioned medium was from LPS stimulated pVW-MSCs. Conclusions The lines of evidence here presented shed a light on possible future application of secretome derived by pVW-MSCs on research studies in translational regenerative medicine.
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Affiliation(s)
- Chiara Bernardini
- Department of Veterinary Medical Sciences DIMEVET, University of Bologna, Via Tolara di Sopra 50, 40064 Ozzano Emilia, Bologna, Italy.
| | - Martina Bertocchi
- Department of Veterinary Medical Sciences DIMEVET, University of Bologna, Via Tolara di Sopra 50, 40064 Ozzano Emilia, Bologna, Italy
| | - Augusta Zannoni
- Department of Veterinary Medical Sciences DIMEVET, University of Bologna, Via Tolara di Sopra 50, 40064 Ozzano Emilia, Bologna, Italy
| | - Roberta Salaroli
- Department of Veterinary Medical Sciences DIMEVET, University of Bologna, Via Tolara di Sopra 50, 40064 Ozzano Emilia, Bologna, Italy
| | - Irvin Tubon
- Department of Veterinary Medical Sciences DIMEVET, University of Bologna, Via Tolara di Sopra 50, 40064 Ozzano Emilia, Bologna, Italy.,Escuela de Enfermeria, Facultad de Ciencias Medicas, Universidad Regional Autónoma de Los Andes UNIANDES, Ambato, EC180150, Ecuador
| | - Giovanni Dothel
- Department of Medical and Surgical Sciences - DIMEC, University of Bologna, Bologna, Italy
| | - Mercedes Fernandez
- Department of Veterinary Medical Sciences DIMEVET, University of Bologna, Via Tolara di Sopra 50, 40064 Ozzano Emilia, Bologna, Italy
| | - Maria Laura Bacci
- Department of Veterinary Medical Sciences DIMEVET, University of Bologna, Via Tolara di Sopra 50, 40064 Ozzano Emilia, Bologna, Italy
| | - Laura Calzà
- Department of Pharmacy and Biotechnology - FaBiT, University of Bologna, Bologna, Italy
| | - Monica Forni
- Department of Veterinary Medical Sciences DIMEVET, University of Bologna, Via Tolara di Sopra 50, 40064 Ozzano Emilia, Bologna, Italy
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21
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Widera D, Martínez Aguilar R, Cottrell GS. Toll-like receptor 4 and protease-activated receptor 2 in physiology and pathophysiology of the nervous system: more than just receptor cooperation? Neural Regen Res 2019; 14:1196-1201. [PMID: 30804245 PMCID: PMC6425834 DOI: 10.4103/1673-5374.251290] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Toll-like receptor 4 (TLR4) and protease-activated receptor 2 (PAR2) play pivotal roles in the mammalian innate immune response. Notably, in addition to their involvement in detection of invading pathogens, PAR2 and TLR4 modulate the levels of cell death-induced sterile inflammation by activating pro- or anti-inflammatory downstream signaling cascades. Within the central nervous system, there is emerging evidence that both receptors are involved in synaptic transmission and brain plasticity. Furthermore, due to their prominent role in mediating neuroinflammation, PAR2 and TLR4 are associated with development and progression of neurodegenerative disorders including but not limited to Alzheimer’s disease, Parkinson’s disease and multiple sclerosis. In this article, we summarise the current knowledge on the cooperation between PAR2 and TLR4, discuss the potential cross-talk levels and highlight the impact of the cross-coupling on neuroinflammation.
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Affiliation(s)
- Darius Widera
- Stem Cell Biology and Regenerative Medicine Group, School of Pharmacy, University of Reading, Whiteknights campus, Reading, UK
| | - Rocío Martínez Aguilar
- Stem Cell Biology and Regenerative Medicine Group, School of Pharmacy, University of Reading, Whiteknights campus, Reading, UK; Unidad de Inmunología, IBIMER, Universidad de Granada, Granada, Spain
| | - Graeme S Cottrell
- Cellular and Molecular Neuroscience, School of Pharmacy, University of Reading, Reading, UK
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22
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Zhu Y, Li Q, Zhou Y, Li W. TLR activation inhibits the osteogenic potential of human periodontal ligament stem cells through Akt signaling in a Myd88- or TRIF-dependent manner. J Periodontol 2018; 90:400-415. [PMID: 30362568 DOI: 10.1002/jper.18-0251] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Revised: 07/06/2018] [Accepted: 07/08/2018] [Indexed: 12/24/2022]
Abstract
BACKGROUND This study investigated the effects of Toll-like receptors (TLRs) on human periodontal ligament stem cells (hPDLSCs) osteogenic differentiation and the associated mechanisms. METHODS TLR1, TLR3, TLR4, and TLR6 expression in hPDLSCs was evaluated by real-time reverse transcriptase polymerase chain reaction (RT-PCR) and flow cytometry, whereas their functional roles were assessed based on nuclear factor (NF)-κB activation and proinflammatory cytokine expression. The osteogenic effects of these TLRs were analyzed by alkaline phosphatase (ALP) staining, ALP activity, and alizarin red staining. The roles of Myd88, TRIF, and downstream molecules mitogen-activated protein kinases (MAPKs) and protein kinase B (Akt) in TLR-mediated impaired osteogenic differentiation were examined by real-time RT-PCR and western blotting using specific small interfering RNA siRNA and pharmacologic inhibitors. The involvement of Akt activation in restoring TLR1-, 4-, and 6-mediated osteogenic suppression was verified using the Akt activator SC-79. RESULTS TLR1, TLR3, TLR4, and TLR6 were highly expressed functionally in hPDLSCs and high doses of TLR ligands inhibited osteogenic potential. Furthermore, blocking Myd88 partly rescued the decrease in osteogenesis mediated by TLR1, TLR4, and TLR6 activation by enhancing Akt phosphorylation; likewise, TRIF suppression partially rescued lipopolysaccharide (LPS)-mediated osteogenic inhibition through ERK and Akt activation. Moreover, Akt activation restored the TLR-mediated inhibition of hPDLSC osteogenic differentiation. CONCLUSIONS High doses of TLR1, TLR4, and TLR6 ligands suppress hPDLSC osteogenic differentiation by inhibiting Akt activation through Myd88- or TRIF-dependent signaling pathways. Blocking these adaptors or reactivating Akt could restore the TLR-mediated decrease in hPDLSC osteogenesis, and might be an ideal strategy for periodontitis treatment.
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Affiliation(s)
- Yunyan Zhu
- Department of Orthodontics, Peking University School and Hospital of Stomatology, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Beijing, China
| | - Qian Li
- Department of Orthodontics, Peking University School and Hospital of Stomatology, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Beijing, China
| | - Yanheng Zhou
- Department of Orthodontics, Peking University School and Hospital of Stomatology, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Beijing, China
| | - Weiran Li
- Department of Orthodontics, Peking University School and Hospital of Stomatology, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Beijing, China
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23
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Chen Y, Yang XQ, Tseng BY, Tsai YH, Tseng SH, Lee CH, Yao CL. Deferoxamine preconditioning activated hypoxia-inducible factor-1α and MyD88-dependent Toll-like receptor 4 signaling in intestinal stem cells. J Pediatr Surg 2018; 53:2349-2356. [PMID: 29475626 DOI: 10.1016/j.jpedsurg.2018.01.023] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2017] [Revised: 01/06/2018] [Accepted: 01/30/2018] [Indexed: 12/14/2022]
Abstract
BACKGROUND/PURPOSE Toll-like receptors (TLRs) are important regulators of innate immunity, and TLR4 pathway can regulate the survival, migration, and differentiation of stem cells, including intestinal stem cells (ISCs). Deferoxamine (DFO), a hypoxia-mimic compound, can activate the proliferation of ISCs. In this study, we investigated the response of TLR4 signaling to DFO-induced hypoxia in cultured ISCs in vitro. METHODS After DFO treatment, the crypt organoid number was counted, and the expression levels of Lgr5, Hsp70, HMGB1, HIF-1α, TLR4, MyD88, TRIF, and TRAM in ISCs were examined using QPCR and Western blotting. The chemical inhibitors of different signaling molecules were then used to determine their role in DFO-induced change in ISCs. RESULTS The expression levels of Lgr5, HIF-1α, TLR4, MyD88, and TRIF in ISCs increased after DFO treatment, with peak expression of these molecules 6h after DFO treatment. In addition, DFO-induced gene expression of Lgr5 and HIF-1α was partially reversed by pretreatment with the inhibitor of TLR4 or MyD88, but not TRIF inhibitor. Inhibition of HIF-1α also resulted in partial downregulation of DFO-induced elevation of Lgr5 and TLR4. CONCLUSIONS These results demonstrated that DFO treatment activated HIF-1α and the TLR4-MyD88 signaling pathway, which might mediate the activation of ISCs.
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Affiliation(s)
- Yun Chen
- Department of Surgery, Far Eastern Memorial Hospital, Pan-Chiao, New Taipei, Taiwan; Department of Chemical Engineering and Materials Science, Yuan Ze University, Chung-Li, Taoyuan, Taiwan
| | - Xiang-Qin Yang
- Department of Chemical Engineering and Materials Science, Yuan Ze University, Chung-Li, Taoyuan, Taiwan
| | - Bor-Yuan Tseng
- Department of Surgery, Far Eastern Memorial Hospital, Pan-Chiao, New Taipei, Taiwan
| | - Ya-Hui Tsai
- Department of Surgery, Far Eastern Memorial Hospital, Pan-Chiao, New Taipei, Taiwan; Department of Chemical Engineering and Materials Science, Yuan Ze University, Chung-Li, Taoyuan, Taiwan; Department of Materials and Textiles, Oriental Institute of Technology, Pan-Chiao, New Taipei, Taiwan
| | - Sheng-Hong Tseng
- Department of Surgery, National Taiwan University Hospital, Taipei, Taiwan
| | - Cheng-Hung Lee
- Graduate School of Biotechnology and Bioengineering, Yuan Ze University, Chung-Li, Taoyuan, Taiwan; Department of General Surgery, Buddhist Dalin Tzu Chi Hospital, Chia-Yi, Taiwan; School of Medicine, Tzu Chi University, Hualien, Taiwan
| | - Chao-Ling Yao
- Department of Chemical Engineering and Materials Science, Yuan Ze University, Chung-Li, Taoyuan, Taiwan; Graduate School of Biotechnology and Bioengineering, Yuan Ze University, Chung-Li, Taoyuan, Taiwan.
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24
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D’Angelo W, Chen B, Gurung C, Guo YL. Characterization of embryonic stem cell-differentiated fibroblasts as mesenchymal stem cells with robust expansion capacity and attenuated innate immunity. Stem Cell Res Ther 2018; 9:278. [PMID: 30359317 PMCID: PMC6203291 DOI: 10.1186/s13287-018-1033-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 09/14/2018] [Accepted: 09/30/2018] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Mesenchymal stem cells (MSCs) isolated from adult tissues (Ad-MSCs) have shown great promise for use in regenerative medicine. However, their poor in vitro expansion capacity and tissue scarcity have been major limitations. In this study, we demonstrate that mouse embryonic stem cells (mESCs) can differentiate into cells with MSC properties. METHODS Using previously established methods that characterize Ad-MSCs, we analyzed mESC-differentiated fibroblasts (mESC-FBs), including plastic adherence, clonogenic growth, MSC marker expression, tri-lineage differentiation potential, and the capacity to express immunomodulators. RESULTS Although previously characterized as mESC-differentiated fibroblasts (mESC-FBs), these cells exhibit major properties of Ad-MSCs. However, mESC-FBs also display unique features inherited from ESCs, including robust expansion capacity, senescence resistance, and attenuated innate immunity. In particular, mESC-FBs are insensitive to bacterial endotoxin (lipopolysaccharide, LPS) and do not express LPS-induced inflammatory molecules, in contrast to bone marrow (BM)-MSCs. We further demonstrate that mESC-FBs are resistant to the cytotoxicity associated with inflammatory cytokines, bacterial endotoxins (LPS and heat-killed bacteria), and macrophage-mediated inflammation. CONCLUSIONS While it remains to be determined how the unique properties of mESC-FBs will affect their immunoregulatory activity under an in vivo condition, our findings demonstrate that ESCs could be used as an alternative source to generate a new class of ESC-MSCs with unique features potentially useful in regenerative medicine.
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Affiliation(s)
- William D’Angelo
- Department of Cell and Molecular Biology, University of Southern Mississippi, 118 College Drive 5018, Hattiesburg, MS 39406 USA
| | - Bohan Chen
- Department of Cell and Molecular Biology, University of Southern Mississippi, 118 College Drive 5018, Hattiesburg, MS 39406 USA
| | - Chandan Gurung
- Department of Cell and Molecular Biology, University of Southern Mississippi, 118 College Drive 5018, Hattiesburg, MS 39406 USA
| | - Yan-Lin Guo
- Department of Cell and Molecular Biology, University of Southern Mississippi, 118 College Drive 5018, Hattiesburg, MS 39406 USA
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25
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Ruhl T, Kim BS, Beier JP. Cannabidiol restores differentiation capacity of LPS exposed adipose tissue mesenchymal stromal cells. Exp Cell Res 2018; 370:653-662. [DOI: 10.1016/j.yexcr.2018.07.030] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Revised: 07/17/2018] [Accepted: 07/19/2018] [Indexed: 02/01/2023]
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26
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Raic A, Riedel S, Kemmling E, Bieback K, Overhage J, Lee-Thedieck C. Biomimetic 3D in vitro model of biofilm triggered osteomyelitis for investigating hematopoiesis during bone marrow infections. Acta Biomater 2018; 73:250-262. [PMID: 29679779 DOI: 10.1016/j.actbio.2018.04.024] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Revised: 03/22/2018] [Accepted: 04/11/2018] [Indexed: 12/16/2022]
Abstract
In this work, we define the requirements for a human cell-based osteomyelitis model which overcomes the limitations of state of the art animal models. Osteomyelitis is a severe and difficult to treat infection of the bone that develops rapidly, making it difficult to study in humans. We have developed a 3D in vitro model of the bone marrow, comprising a macroporous material, human hematopoietic stem and progenitor cells (HSPCs) and mesenchymal stromal cells (MSCs). Inclusion of biofilms grown on an implant into the model system allowed us to study the effects of postoperative osteomyelitis-inducing bacteria on the bone marrow. The bacteria influenced the myeloid differentiation of HSPCs as well as MSC cytokine expression and the MSC ability to support HSPC maintenance. In conclusion, we provide a new 3D in vitro model which meets all the requirements for investigating the impact of osteomyelitis. STATEMENT OF SIGNIFICANCE Implant-associated osteomyelitis is a persistent bacterial infection of the bone which occurs in many implant patients and can result in functional impairments or even entire loss of the extremity. Nevertheless, surprisingly little is known on the triangle interaction between implant material, bacterial biofilm and affected bone tissue. Closing this gap of knowledge would be crucial for the fundamental understanding of the disease and the development of novel treatment strategies. For this purpose, we developed the first biomaterial-based system that is able to mimic implant-associated osteomyelitis outside of the body, thus, opening the avenue to study this fatal disease in the laboratory.
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Affiliation(s)
- Annamarija Raic
- Karlsruhe Institute of Technology (KIT), Institute of Functional Interfaces, 76344 Eggenstein-Leopoldshafen, Germany
| | - Sophie Riedel
- Karlsruhe Institute of Technology (KIT), Institute of Functional Interfaces, 76344 Eggenstein-Leopoldshafen, Germany
| | - Elena Kemmling
- Karlsruhe Institute of Technology (KIT), Institute of Functional Interfaces, 76344 Eggenstein-Leopoldshafen, Germany
| | - Karen Bieback
- Institute of Transfusion Medicine and Immunology, Medical Faculty Mannheim, Heidelberg University, German Red Cross Blood Service Baden-Württemberg - Hessen, Friedrich-Ebert Str. 107, 68167 Mannheim, Germany
| | - Joerg Overhage
- Department of Health Sciences, Carleton University, 1125 Colonel by Drive, Ottawa ON, K1S 5B6, Canada
| | - Cornelia Lee-Thedieck
- Karlsruhe Institute of Technology (KIT), Institute of Functional Interfaces, 76344 Eggenstein-Leopoldshafen, Germany.
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27
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Marques-Rocha JL, Garcia-Lacarte M, Samblas M, Bressan J, Martínez JA, Milagro FI. Regulatory roles of miR-155 and let-7b on the expression of inflammation-related genes in THP-1 cells: effects of fatty acids. J Physiol Biochem 2018; 74:579-589. [PMID: 29790117 DOI: 10.1007/s13105-018-0629-x] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Accepted: 04/03/2018] [Indexed: 12/21/2022]
Abstract
The main aim of this investigation was to study the regulatory roles of let-7b and miR-155-3p on the expression of inflammation-associated genes in monocytes, macrophages, and lipopolysaccharide (LPS)-activated macrophages (AcM). A second goal was to analyze the potential modulatory roles of different fatty acids, including oleic, palmitic, eicosapentaenoic (EPA), and docosahexaenoic (DHA), on the expression of these miRNAs in the three cell types. This hypothesis was tested in human acute monocytic leukemia cells (THP-1), which were differentiated into macrophages with 2-O-tetradecanoylphorbol-13-acetate (TPA) and further activated with LPS for 24 h. Monocytes, macrophages, and AcM were transfected with a negative control, or mimics for miR-155-3p and miR-let-7b-5p. The expression of both miRNAs and some proinflammatory genes was analyzed by qRT-PCR. Interestingly, let-7b mimic reduced the expression of IL6 and TNF in monocytes, and SERPINE1 expression in LPS-activated macrophages. However, IL6, TNF, and SERPINE1 were upregulated in macrophages by let-7b mimic. IL6 expression was higher in the three types of cells after transfecting with miR-155-3p mimic. Similarly, expression of SERPINE1 was increased by miR-155-3p mimic in monocytes and macrophages. However, TLR4 was downregulated by miR-155-3p in monocytes and macrophages. Regarding the effects of the different fatty acids, oleic acid increased the expression of let-7b in macrophages and AcM and also increased the expression of miR-155 in monocytes when compared with DHA but not when compared with non-treated cells. Overall, these results suggest anti- and proinflammatory roles of let-7b and miR-155-3p in THP-1 cells, respectively, although these outcomes are strongly dependent on the cell type. Noteworthy, oleic acid might exert beneficial anti-inflammatory effects in immune cells (i.e., non-activated and LPS-activated macrophages) by upregulating the expression of let-7b.
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Affiliation(s)
- J L Marques-Rocha
- Department of Integrated Education of Health, Federal University of Espirito Santo, Vitória, Brazil
| | - M Garcia-Lacarte
- Department of Nutrition, Food Science and Physiology; Centre for Nutrition Research, University of Navarra, c / Irunlarrea 1, 31008, Pamplona, Navarra, Spain
| | - M Samblas
- Department of Nutrition, Food Science and Physiology; Centre for Nutrition Research, University of Navarra, c / Irunlarrea 1, 31008, Pamplona, Navarra, Spain
| | - J Bressan
- Department of Nutrition and Health, Federal University of Viçosa, Viçosa, Brazil
| | - J A Martínez
- Department of Nutrition, Food Science and Physiology; Centre for Nutrition Research, University of Navarra, c / Irunlarrea 1, 31008, Pamplona, Navarra, Spain.,CIBERobn, Fisiopatología de la Obesidad y la Nutrición, Carlos III Health Institute, Madrid, Spain.,IdiSNA, Navarra Institute for Health Research, Pamplona, Spain.,IMDEA Food, Madrid, Spain
| | - F I Milagro
- Department of Nutrition, Food Science and Physiology; Centre for Nutrition Research, University of Navarra, c / Irunlarrea 1, 31008, Pamplona, Navarra, Spain. .,CIBERobn, Fisiopatología de la Obesidad y la Nutrición, Carlos III Health Institute, Madrid, Spain.
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28
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Grasselli C, Ferrari D, Zalfa C, Soncini M, Mazzoccoli G, Facchini FA, Marongiu L, Granucci F, Copetti M, Vescovi AL, Peri F, De Filippis L. Toll-like receptor 4 modulation influences human neural stem cell proliferation and differentiation. Cell Death Dis 2018; 9:280. [PMID: 29449625 PMCID: PMC5833460 DOI: 10.1038/s41419-017-0139-8] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Revised: 11/03/2017] [Accepted: 11/03/2017] [Indexed: 12/13/2022]
Abstract
Toll-like receptor 4 (TLR4) activation is pivotal to innate immunity and has been shown to regulate proliferation and differentiation of human neural stem cells (hNSCs) in vivo. Here we study the role of TLR4 in regulating hNSC derived from the human telencephalic-diencephalic area of the fetal brain and cultured in vitro as neurospheres in compliance with Good Manifacture Procedures (GMP) guidelines. Similar batches have been used in recent clinical trials in ALS patients. We found that TLR2 and 4 are expressed in hNSCs as well as CD14 and MD-2 co-receptors, and TLR4 expression is downregulated upon differentiation. Activation of TLR4 signaling by lipopolysaccharide (LPS) has a positive effect on proliferation and/or survival while the inverse is observed with TLR4 inhibition by a synthetic antagonist. TLR4 activation promotes neuronal and oligodendrocyte differentiation and/or survival while TLR4 inhibition leads to increased apoptosis. Consistently, endogenous expression of TLR4 is retained by hNSC surviving after transplantation in ALS rats or immunocompromised mice, thus irrespectively of the neuroinflammatory environment. The characterization of downstream signaling of TLR4 in hNSCs has suggested some activation of the inflammasome pathway. This study suggests TLR4 signaling as essential for hNSC self-renewal and as a novel target for the study of neurogenetic mechanisms.
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Affiliation(s)
- Chiara Grasselli
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Milan, MI, Italy
| | - Daniela Ferrari
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Milan, MI, Italy
| | - Cristina Zalfa
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Milan, MI, Italy
| | - Matias Soncini
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Milan, MI, Italy
| | - Gianluigi Mazzoccoli
- Department of Medical Sciences, IRCCS Casa Sollievo della Sofferenza, San Giovanni Rotondo, FG, Italy
| | - Fabio A Facchini
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Milan, MI, Italy
| | - Laura Marongiu
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Milan, MI, Italy
| | - Francesca Granucci
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Milan, MI, Italy
| | - Massimiliano Copetti
- Unit of Biostatistics, IRCCS Casa Sollievo della Sofferenza, San Giovanni Rotondo, FG, Italy
| | - Angelo Luigi Vescovi
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Milan, MI, Italy
- Department of Regenerative Medicine, IRCCS Casa Sollievo della Sofferenza, San Giovanni Rotondo, FG, Italy
| | - Francesco Peri
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Milan, MI, Italy.
| | - Lidia De Filippis
- Department of Regenerative Medicine, IRCCS Casa Sollievo della Sofferenza, San Giovanni Rotondo, FG, Italy.
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29
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Krüger CL, Zeuner MT, Cottrell GS, Widera D, Heilemann M. Quantitative single-molecule imaging of TLR4 reveals ligand-specific receptor dimerization. Sci Signal 2017; 10:10/503/eaan1308. [DOI: 10.1126/scisignal.aan1308] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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30
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Toll-Like Receptor 4 Signalling and Its Impact on Platelet Function, Thrombosis, and Haemostasis. Mediators Inflamm 2017; 2017:9605894. [PMID: 29170605 PMCID: PMC5664350 DOI: 10.1155/2017/9605894] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Revised: 08/17/2017] [Accepted: 09/12/2017] [Indexed: 11/18/2022] Open
Abstract
Platelets are anucleated blood cells that participate in a wide range of physiological and pathological functions. Their major role is mediating haemostasis and thrombosis. In addition to these classic functions, platelets have emerged as important players in the innate immune system. In particular, they interact with leukocytes, secrete pro- and anti-inflammatory factors, and express a wide range of inflammatory receptors including Toll-like receptors (TLRs), for example, Toll-like receptor 4 (TLR4). TLR4, which is the most extensively studied TLR in nucleated cells, recognises lipopolysaccharides (LPS) that are compounds of the outer surface of Gram-negative bacteria. Unlike other TLRs, TLR4 is able to signal through both the MyD88-dependent and MyD88-independent signalling pathways. Notably, despite both pathways culminating in the activation of transcription factors, TLR4 has a prominent functional impact on platelet activity, haemostasis, and thrombosis. In this review, we summarise the current knowledge on TLR4 signalling in platelets, critically discuss its impact on platelet function, and highlight the open questions in this area.
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31
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Fafián-Labora J, Lesende-Rodriguez I, Fernández-Pernas P, Sangiao-Alvarellos S, Monserrat L, Arntz OJ, Loo FJVD, Mateos J, Arufe MC. Effect of age on pro-inflammatory miRNAs contained in mesenchymal stem cell-derived extracellular vesicles. Sci Rep 2017; 7:43923. [PMID: 28262816 PMCID: PMC5338265 DOI: 10.1038/srep43923] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Accepted: 01/18/2017] [Indexed: 02/08/2023] Open
Abstract
Stem cells possess significant age-dependent differences in their immune-response profile. These differences were analysed by Next-Generation Sequencing of six age groups from bone marrow mesenchymal stem cells. A total of 9,628 genes presenting differential expression between age groups were grouped into metabolic pathways. We focused our research on young, pre-pubertal and adult groups, which presented the highest amount of differentially expressed genes related to inflammation mediated by chemokine and cytokine signalling pathways compared with the newborn group, which was used as a control. Extracellular vesicles extracted from each group were characterized by nanoparticle tracking and flow cytometry analysis, and several micro-RNAs were verified by quantitative real-time polymerase chain reaction because of their relationship with the pathway of interest. Since miR-21-5p showed the highest statistically significant expression in extracellular vesicles from mesenchymal stem cells of the pre-pubertal group, we conducted a functional experiment inhibiting its expression and investigating the modulation of Toll-Like Receptor 4 and their link to damage-associated molecular patterns. Together, these results indicate for the first time that mesenchymal stem cell-derived extracellular vesicles have significant age-dependent differences in their immune profiles.
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Affiliation(s)
- J. Fafián-Labora
- Grupo de Terapia Celular y Medicina Regenerativa (TCMR-CHUAC). CIBER-BBN/ISCIII. Servicio de Reumatología, Instituto de Investigación Biomédica de A Coruña (INIBIC), Complexo Hospitalario Universitario de A Coruña (CHUAC), SERGAS, Departamento de Medicina, Facultade de Oza, Universidade de A Coruña (UDC), As Xubias, 15006, A Coruña, Spain
| | - I. Lesende-Rodriguez
- Grupo de Terapia Celular y Medicina Regenerativa (TCMR-CHUAC). CIBER-BBN/ISCIII. Servicio de Reumatología, Instituto de Investigación Biomédica de A Coruña (INIBIC), Complexo Hospitalario Universitario de A Coruña (CHUAC), SERGAS, Departamento de Medicina, Facultade de Oza, Universidade de A Coruña (UDC), As Xubias, 15006, A Coruña, Spain
| | - P. Fernández-Pernas
- Grupo de Terapia Celular y Medicina Regenerativa (TCMR-CHUAC). CIBER-BBN/ISCIII. Servicio de Reumatología, Instituto de Investigación Biomédica de A Coruña (INIBIC), Complexo Hospitalario Universitario de A Coruña (CHUAC), SERGAS, Departamento de Medicina, Facultade de Oza, Universidade de A Coruña (UDC), As Xubias, 15006, A Coruña, Spain
| | - S. Sangiao-Alvarellos
- Grupo Fisiopatología Endocrina, Nutricional y Médica (FENM-CHUAC), Instituto de Investigación Biomédica de A Coruña (INIBIC), Complexo Hospitalario Universitario de A Coruña (CHUAC), SERGAS, Departamento de Medicina, Facultade de Oza, Universidade de A Coruña (UDC), As Xubias, 15006, A Coruña, Spain
| | - L. Monserrat
- Cardiology Department, Health in Code, As Xubias, 15006, A Coruña, Spain
| | - O. J. Arntz
- Experimental Rheumatology, Radboudumc University Medical Center, Huispost 272, route 272, Postbus 9101, 6500 HB Nijmegen, The Netherlands
| | - F. J. Van de Loo
- Experimental Rheumatology, Radboudumc University Medical Center, Huispost 272, route 272, Postbus 9101, 6500 HB Nijmegen, The Netherlands
| | - J. Mateos
- Grupo de Terapia Celular y Medicina Regenerativa (TCMR-CHUAC). CIBER-BBN/ISCIII. Servicio de Reumatología, Instituto de Investigación Biomédica de A Coruña (INIBIC), Complexo Hospitalario Universitario de A Coruña (CHUAC), SERGAS, Departamento de Medicina, Facultade de Oza, Universidade de A Coruña (UDC), As Xubias, 15006, A Coruña, Spain
| | - M. C. Arufe
- Grupo de Terapia Celular y Medicina Regenerativa (TCMR-CHUAC). CIBER-BBN/ISCIII. Servicio de Reumatología, Instituto de Investigación Biomédica de A Coruña (INIBIC), Complexo Hospitalario Universitario de A Coruña (CHUAC), SERGAS, Departamento de Medicina, Facultade de Oza, Universidade de A Coruña (UDC), As Xubias, 15006, A Coruña, Spain
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Kardia E, Zakaria N, Sarmiza Abdul Halim NS, Widera D, Yahaya BH. The use of mesenchymal stromal cells in treatment of lung disorders. Regen Med 2017; 12:203-216. [DOI: 10.2217/rme-2016-0112] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
The therapeutic use of mesenchymal stromal cells (MSCs) represents a promising alternative clinical strategy for treating acute and chronic lung disorders. Several preclinical reports demonstrated that MSCs can secrete multiple paracrine factors and that their immunomodulatory properties can support endothelial and epithelial regeneration, modulate the inflammatory cascade and protect lungs from damage. The effects of MSC transplantation into patients suffering from lung diseases should be fully evaluated through careful assessment of safety and associated risks, which is a prerequisite for translation of preclinical research into clinical practice. In this article, we summarize the current status of preclinical research and review initial MSC-based clinical trials for treating lung injuries and lung disorders.
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Affiliation(s)
- Egi Kardia
- Regenerative Medicine Cluster, Advanced Medical & Dental Institute (AMDI), Universiti Sains Malaysia, Bandar Putra Bertam, 13200 Kepala Batas, Pulau Pinang, Malaysia
| | - Norashikin Zakaria
- Regenerative Medicine Cluster, Advanced Medical & Dental Institute (AMDI), Universiti Sains Malaysia, Bandar Putra Bertam, 13200 Kepala Batas, Pulau Pinang, Malaysia
| | - Nur Shuhaidatul Sarmiza Abdul Halim
- Regenerative Medicine Cluster, Advanced Medical & Dental Institute (AMDI), Universiti Sains Malaysia, Bandar Putra Bertam, 13200 Kepala Batas, Pulau Pinang, Malaysia
| | - Darius Widera
- Stem Cell Biology & Regenerative Medicine, School of Pharmacy, University of Reading, Whiteknights, RG6 6UB Reading, UK
| | - Badrul Hisham Yahaya
- Regenerative Medicine Cluster, Advanced Medical & Dental Institute (AMDI), Universiti Sains Malaysia, Bandar Putra Bertam, 13200 Kepala Batas, Pulau Pinang, Malaysia
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Herzmann N, Salamon A, Fiedler T, Peters K. Lipopolysaccharide induces proliferation and osteogenic differentiation of adipose-derived mesenchymal stromal cells in vitro via TLR4 activation. Exp Cell Res 2017; 350:115-122. [DOI: 10.1016/j.yexcr.2016.11.012] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Revised: 11/04/2016] [Accepted: 11/15/2016] [Indexed: 12/22/2022]
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Dothel G, Raschi E, Rimondini R, De Ponti F. Mesenchymal stromal cell-based therapy: Regulatory and translational aspects in gastroenterology. World J Gastroenterol 2016; 22:9057-9068. [PMID: 27895395 PMCID: PMC5107589 DOI: 10.3748/wjg.v22.i41.9057] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Revised: 09/09/2016] [Accepted: 10/19/2016] [Indexed: 02/06/2023] Open
Abstract
The past decade has witnessed an outstanding scientific production focused towards the possible clinical applications of mesenchymal stromal cells (MSCs) in autoimmune and chronic inflammatory diseases. This raised the need of novel standards to adequately address quality, efficacy and safety issues of this advanced therapy. The development of a streamlined regulation is currently hampered by the complexity of analyzing dynamic biological entities rather than chemicals. Although numerous pieces of evidence show efficacy in reducing intestinal inflammation, some inconsistencies between the mechanisms of action of rodent vs human MSCs suggest caution before assigning translational value to preclinical studies. Preliminary evidence from clinical trials showed efficacy of MSCs in the treatment of fistulizing Crohn’s disease (CD), and preparations of heterologous MSCs for CD treatment are currently tested in ongoing clinical trials. However, safety issues, especially in long-term treatment, still require solid clinical data. In this regard, standardized guidelines for appropriate dosing and methods of infusion could enhance the likelihood to predict more accurately the number of responders and the duration of remission periods. In addition, elucidating MSC mechanisms of action could lead to novel and more reliable formulations such as those derived from the MSCs themselves (e.g., supernatants).
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Zeuner MT, Krüger CL, Volk K, Bieback K, Cottrell GS, Heilemann M, Widera D. Biased signalling is an essential feature of TLR4 in glioma cells. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2016; 1863:3084-3095. [PMID: 27669113 DOI: 10.1016/j.bbamcr.2016.09.016] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Revised: 09/21/2016] [Accepted: 09/22/2016] [Indexed: 01/19/2023]
Abstract
A distinct feature of the Toll-like receptor 4 (TLR4) is its ability to trigger both MyD88-dependent and MyD88-independent signalling, culminating in activation of pro-inflammatory NF-κB and/or the antiviral IRF3. Although TLR4 agonists (lipopolysaccharides; LPSs) derived from different bacterial species have different endotoxic activity, the impact of LPS chemotype on the downstream signalling is not fully understood. Notably, different TLR4 agonists exhibit anti-tumoural activity in animal models of glioma, but the underlying molecular mechanisms are largely unknown. Thus, we investigated the impact of LPS chemotype on the signalling events in the human glioma cell line U251. We found that LPS of Escherichia coli origin (LPSEC) leads to NF-κB-biased downstream signalling compared to Salmonella minnesota-derived LPS (LPSSM). Exposure of U251 cells to LPSEC resulted in faster nuclear translocation of the NF-κB subunit p65, higher NF-κB-activity and expression of its targets genes, and higher amount of secreted IL-6 compared to LPSSM. Using super-resolution microscopy we showed that the biased agonism of TLR4 in glioma cells is neither a result of differential regulation of receptor density nor of formation of higher order oligomers. Consistent with previous reports, LPSEC-mediated NF-κB activation led to significantly increased U251 proliferation, whereas LPSSM-induced IRF3 activity negatively influenced their invasiveness. Finally, treatment with methyl-β-cyclodextrin (MCD) selectively increased LPSSM-induced nuclear translocation of p65 and NF-κB activity without affecting IRF3. Our data may explain how TLR4 agonists differently affect glioma cell proliferation and migration.
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Affiliation(s)
- Marie-Theres Zeuner
- Stem Cell Biology and Regenerative Medicine, School of Pharmacy, University of Reading, Reading, United Kingdom
| | - Carmen L Krüger
- Institute of Physical and Theoretical Chemistry, Goethe-University, Frankfurt, Germany
| | - Katharina Volk
- Department of Cell Biology, University of Bielefeld, Bielefeld, Germany
| | - Karen Bieback
- Institute of Transfusion Medicine and Immunology, Medical Faculty Mannheim, Heidelberg University, Heidelberg, Germany
| | - Graeme S Cottrell
- Cellular and Molecular Neuroscience, School of Pharmacy, University of Reading, Reading, United Kingdom
| | - Mike Heilemann
- Institute of Physical and Theoretical Chemistry, Goethe-University, Frankfurt, Germany
| | - Darius Widera
- Stem Cell Biology and Regenerative Medicine, School of Pharmacy, University of Reading, Reading, United Kingdom.
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Zhu W, Li J, Liu Y, Xie K, Wang L, Fang J. Mesencephalic astrocyte-derived neurotrophic factor attenuates inflammatory responses in lipopolysaccharide-induced neural stem cells by regulating NF-κB and phosphorylation of p38-MAPKs pathways. Immunopharmacol Immunotoxicol 2016; 38:205-13. [PMID: 27075782 DOI: 10.3109/08923973.2016.1168433] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Mesencephalic astrocyte-derived neurotrophic factor (MANF), a new evolutionary conserved neurotrophic factor (NTF), has been reported to protect midbrain dopaminergic neurons of neurodegenerative diseases such as Parkinson's disease (PD) model. Neural stem cells (NSCs) can play a role as the therapeutic tool in neurodegenerative diseases, but the inflammatory responses of central nervous system (CNS) appear to harm this function. Although studies have previously demonstrated the protective effect of MANF on neurons of CNS, it is lacking in making great efforts on the function of MANF on NSCs. The aim of this study was to investigate the antiinflammatory responses and signaling mechanisms of MANF on lipopolysaccharide (LPS)-induced NSCs. In the results, MANF decreased the proinflammatory cytokines of IL-1β, TNF-α, and IFN-γ induced by LPS by regulating NF-κB and phosphorylation of p38-mitogen-activated protein kinases (MAPKs) pathways, neither p-JNK nor p-ERK signaling. These findings suggest that MANF can facilitate to protect the inflammatory responses of NSCs, and provide beneficial function for the application of NSCs in the therapy.
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Affiliation(s)
- Wei Zhu
- a Laboratory of Molecular Medicine, School of Life Sciences and Technology , Tongji University , Shanghai , China
| | - Jie Li
- a Laboratory of Molecular Medicine, School of Life Sciences and Technology , Tongji University , Shanghai , China
| | - Yigang Liu
- b Tongji Hospital, Tongji University School of Medicine , Shanghai , China
| | - Kun Xie
- a Laboratory of Molecular Medicine, School of Life Sciences and Technology , Tongji University , Shanghai , China
| | - Le Wang
- a Laboratory of Molecular Medicine, School of Life Sciences and Technology , Tongji University , Shanghai , China
| | - Jianmin Fang
- a Laboratory of Molecular Medicine, School of Life Sciences and Technology , Tongji University , Shanghai , China
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Herzmann N, Salamon A, Fiedler T, Peters K. Analysis of migration rate and chemotaxis of human adipose-derived mesenchymal stem cells in response to LPS and LTA in vitro. Exp Cell Res 2016; 342:95-103. [PMID: 26997527 DOI: 10.1016/j.yexcr.2016.03.016] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2015] [Revised: 02/17/2016] [Accepted: 03/16/2016] [Indexed: 11/18/2022]
Abstract
Mesenchymal stem cells (MSC) are able to stimulate the regeneration of injured tissue. Since bacterial infections are common complications in wound healing, bacterial pathogens and their components come into direct contact with MSC. The interaction with bacterial structures influences the proliferation, differentiation and migratory activity of the MSC, which might be of relevance during regeneration. Studies on MSC migration in response to bacterial components have shown different results depending on the cell type. Here, we analyzed the migration rate and chemotaxis of human adipose-derived MSC (adMSC) in response to the basic cell-wall components lipopolysaccharide (LPS) of Gram-negative bacteria and lipoteichoic acid (LTA) of Gram-positive bacteria in vitro. To this end, we used transwell and scratch assays, as well as a specific chemotaxis assay combined with live-cell imaging. We found no significant influence of LPS or LTA on the migration rate of adMSC in transwell or scratch assays. Furthermore, in the µ-slide chemotaxis assay, the stimulation with LPS did not exert any chemotactic effect on adMSC.
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Affiliation(s)
- Nicole Herzmann
- Department of Cell Biology, University Medicine Rostock, Schillingallee 69, D-18057 Rostock, Germany
| | - Achim Salamon
- Department of Cell Biology, University Medicine Rostock, Schillingallee 69, D-18057 Rostock, Germany
| | - Tomas Fiedler
- Institute for Medical Microbiology, Virology and Hygiene, University Medicine Rostock, Schillingallee 70, D-18057 Rostock, Germany
| | - Kirsten Peters
- Department of Cell Biology, University Medicine Rostock, Schillingallee 69, D-18057 Rostock, Germany.
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Zeuner MT, Patel K, Denecke B, Giebel B, Widera D. Paracrine effects of TLR4-polarised mesenchymal stromal cells are mediated by extracellular vesicles. J Transl Med 2016; 14:34. [PMID: 26838370 PMCID: PMC4735950 DOI: 10.1186/s12967-016-0794-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Accepted: 01/20/2016] [Indexed: 12/17/2022] Open
Abstract
Mesenchymal stromal cells (MSCs) are adult stem cells able to give rise to bone, cartilage and fat cells. In addition, they possess immunomodulatory and immunosuppressive properties that are mainly mediated through secretion of extracellular vesicles (EVs). In a previous issue of Journal of Translational Medicine, Ti and colleagues demonstrated that preconditioning of MSCs with bacterial lipopolysaccharides results in secretion of EVs that can polarise macrophages towards anti-inflammatory M2 phenotype. Moreover, the authors suggest that EVs of lipopolysaccharide (LPS)-treated MSCs are superior to EVs of untreated MSCs concerning their ability to support wound healing. Our commentary critically discusses parallel efforts of other laboratories to generate conditioned media from stem cells for therapeutic applications, and highlights impact and significance of the study of Ti et al. Finally, we summarise its limitations and spotlight areas that need to be addressed to better define the underlying molecular mechanisms.
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Affiliation(s)
- Marie-Theres Zeuner
- Stem Cell Biology and Regenerative Medicine Group, Reading School of Pharmacy, University of Reading, Whiteknights Campus, PO Box 226, Reading, RG6 6AP, UK.
| | - Ketan Patel
- School of Biological Sciences, University of Reading, Whiteknights Campus, Reading, UK. .,Freiburg Institute for Advanced Studies (FRIAS), University of Freiburg, Albertstr. 19, 79104, Freiburg, Germany.
| | - Bernd Denecke
- Interdisciplinary Center for Clinical Research Aachen (IZKF Aachen), RWTH Aachen University, Aachen, Germany.
| | - Bernd Giebel
- Institute for Transfusion Medicine, University Hospital Essen, University Duisburg-Essen, Essen, Germany.
| | - Darius Widera
- Stem Cell Biology and Regenerative Medicine Group, Reading School of Pharmacy, University of Reading, Whiteknights Campus, PO Box 226, Reading, RG6 6AP, UK.
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Ti D, Hao H, Tong C, Liu J, Dong L, Zheng J, Zhao Y, Liu H, Fu X, Han W. LPS-preconditioned mesenchymal stromal cells modify macrophage polarization for resolution of chronic inflammation via exosome-shuttled let-7b. J Transl Med 2015; 13:308. [PMID: 26386558 PMCID: PMC4575470 DOI: 10.1186/s12967-015-0642-6] [Citation(s) in RCA: 462] [Impact Index Per Article: 51.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2015] [Accepted: 08/18/2015] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Within the last few years, it has become evident that LPS-preconditioned mesenchymal stromal cells (LPS pre-MSCs) show enhanced paracrine effects, including increased trophic support and improved regenerative and repair properties. MSCs may release large amounts of exosomes for cell-to-cell communication and maintain a dynamic and homeostatic microenvironment for tissue repair. The present study assesses the therapeutic efficacy and mechanisms of LPS-preconditioned MSC-derived exosomes (LPS pre-Exo) for chronic inflammation and wound healing. METHODS We extracted exosomes from the supernatant of LPS pre-MSCs using a gradient centrifugation method. In vitro, THP-1 cells were cultured with high glucose (HG, 30 mM) as an inflammatory model and treated with LPS pre-Exo for 48 h. The expression of inflammation-related cytokines was detected by real-time RT-PCR, and the distribution of macrophage subtype was measured by immunofluorescence. Next, the miRNA expression profiles of LPS pre-Exo were evaluated using miRNA microarray analysis. The molecular signaling pathway responsible for the regenerative potential was identified by western blotting. In vivo, we established a cutaneous wound model in streptozotocin-induced diabetic rats, and LPS pre-Exo were injected dispersively into the wound edge. The curative effects of LPS pre-Exo on inflammation and wound healing were observed and evaluated. RESULTS LPS pre-Exo have a better ability than untreated MSC-derived exosomes (un-Exo) to modulate the balance of macrophages due to their upregulation of the expression of anti-inflammatory cytokines and promotion of M2 macrophage activation. Microarray analysis of LPS pre-Exo identified the unique expression of let-7b compared with un-Exo, and the let-7b/TLR4 pathway served as potential contributor to macrophage polarization and inflammatory ablation. Further investigation of the mechanisms that control let-7b expression demonstrated that a TLR4/NF-κB/STAT3/AKT regulatory signaling pathway plays a critical role in the regulation of macrophage plasticity. Knockdown of AKT in THP-1 cells similarly abolished the immunomodulatory effect of LPS pre-Exo. In vivo, LPS pre-Exo greatly alleviated inflammation and enhanced diabetic cutaneous wound healing. CONCLUSION LPS pre-Exo may have improved regulatory abilities for macrophage polarization and resolution of chronic inflammation by shuttling let-7b, and these exosomes carry much immunotherapeutic potential for wound healing.
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Affiliation(s)
- Dongdong Ti
- Institute of Basic Medicine Science, College of Life Science, Chinese PLA General Hospital, No. 28 Fuxing Road, Beijing, 100853, China.
| | - Haojie Hao
- Institute of Basic Medicine Science, College of Life Science, Chinese PLA General Hospital, No. 28 Fuxing Road, Beijing, 100853, China.
| | - Chuan Tong
- Institute of Basic Medicine Science, College of Life Science, Chinese PLA General Hospital, No. 28 Fuxing Road, Beijing, 100853, China.
| | - Jiejie Liu
- Institute of Basic Medicine Science, College of Life Science, Chinese PLA General Hospital, No. 28 Fuxing Road, Beijing, 100853, China.
| | - Liang Dong
- Institute of Basic Medicine Science, College of Life Science, Chinese PLA General Hospital, No. 28 Fuxing Road, Beijing, 100853, China.
| | - Jingxi Zheng
- Institute of Basic Medicine Science, College of Life Science, Chinese PLA General Hospital, No. 28 Fuxing Road, Beijing, 100853, China.
| | - Yali Zhao
- Central Laboratory, Hainan Branch of Chinese PLA General Hospital, Sanya, 572013, China.
| | - Huiling Liu
- Institute of Basic Medicine Science, College of Life Science, Chinese PLA General Hospital, No. 28 Fuxing Road, Beijing, 100853, China.
| | - Xiaobing Fu
- Institute of Basic Medicine Science, College of Life Science, Chinese PLA General Hospital, No. 28 Fuxing Road, Beijing, 100853, China.
| | - Weidong Han
- Institute of Basic Medicine Science, College of Life Science, Chinese PLA General Hospital, No. 28 Fuxing Road, Beijing, 100853, China.
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