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Jerome AD, Sas AR, Wang Y, Hammond LA, Wen J, Atkinson JR, Webb A, Liu T, Segal BM. Cytokine polarized, alternatively activated bone marrow neutrophils drive axon regeneration. Nat Immunol 2024:10.1038/s41590-024-01836-7. [PMID: 38811815 DOI: 10.1038/s41590-024-01836-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Accepted: 04/11/2024] [Indexed: 05/31/2024]
Abstract
The adult central nervous system (CNS) possesses a limited capacity for self-repair. Severed CNS axons typically fail to regrow. There is an unmet need for treatments designed to enhance neuronal viability, facilitate axon regeneration and ultimately restore lost neurological functions to individuals affected by traumatic CNS injury, multiple sclerosis, stroke and other neurological disorders. Here we demonstrate that both mouse and human bone marrow neutrophils, when polarized with a combination of recombinant interleukin-4 (IL-4) and granulocyte colony-stimulating factor (G-CSF), upregulate alternative activation markers and produce an array of growth factors, thereby gaining the capacity to promote neurite outgrowth. Moreover, adoptive transfer of IL-4/G-CSF-polarized bone marrow neutrophils into experimental models of CNS injury triggered substantial axon regeneration within the optic nerve and spinal cord. These findings have far-reaching implications for the future development of autologous myeloid cell-based therapies that may bring us closer to effective solutions for reversing CNS damage.
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Affiliation(s)
- Andrew D Jerome
- Department of Neurology, The Ohio State University Wexner Medical Center, Columbus, OH, USA
- The Neuroscience Research Institute, The Ohio State University, Columbus, OH, USA
| | - Andrew R Sas
- Department of Neurology, The Ohio State University Wexner Medical Center, Columbus, OH, USA
- The Neuroscience Research Institute, The Ohio State University, Columbus, OH, USA
| | - Yan Wang
- Department of Neurology, The Ohio State University Wexner Medical Center, Columbus, OH, USA
- The Neuroscience Research Institute, The Ohio State University, Columbus, OH, USA
| | - Luke A Hammond
- Department of Neurology, The Ohio State University Wexner Medical Center, Columbus, OH, USA
- The Neuroscience Research Institute, The Ohio State University, Columbus, OH, USA
| | - Jing Wen
- The James Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA
| | - Jeffrey R Atkinson
- Department of Neurology, The Ohio State University Wexner Medical Center, Columbus, OH, USA
| | - Amy Webb
- The James Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA
- Department of Biomedical Informatics, The Ohio State University, Columbus, OH, USA
| | - Tom Liu
- Department of Neurology, The Ohio State University Wexner Medical Center, Columbus, OH, USA
- The Neuroscience Research Institute, The Ohio State University, Columbus, OH, USA
| | - Benjamin M Segal
- Department of Neurology, The Ohio State University Wexner Medical Center, Columbus, OH, USA.
- The Neuroscience Research Institute, The Ohio State University, Columbus, OH, USA.
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Tang Q, Buonfiglio F, Böhm EW, Zhang L, Pfeiffer N, Korb CA, Gericke A. Diabetic Retinopathy: New Treatment Approaches Targeting Redox and Immune Mechanisms. Antioxidants (Basel) 2024; 13:594. [PMID: 38790699 PMCID: PMC11117924 DOI: 10.3390/antiox13050594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2024] [Revised: 05/06/2024] [Accepted: 05/09/2024] [Indexed: 05/26/2024] Open
Abstract
Diabetic retinopathy (DR) represents a severe complication of diabetes mellitus, characterized by irreversible visual impairment resulting from microvascular abnormalities. Since the global prevalence of diabetes continues to escalate, DR has emerged as a prominent area of research interest. The development and progression of DR encompass a complex interplay of pathological and physiological mechanisms, such as high glucose-induced oxidative stress, immune responses, vascular endothelial dysfunction, as well as damage to retinal neurons. Recent years have unveiled the involvement of genomic and epigenetic factors in the formation of DR mechanisms. At present, extensive research explores the potential of biomarkers such as cytokines, molecular and cell therapies, antioxidant interventions, and gene therapy for DR treatment. Notably, certain drugs, such as anti-VEGF agents, antioxidants, inhibitors of inflammatory responses, and protein kinase C (PKC)-β inhibitors, have demonstrated promising outcomes in clinical trials. Within this context, this review article aims to introduce the recent molecular research on DR and highlight the current progress in the field, with a particular focus on the emerging and experimental treatment strategies targeting the immune and redox signaling pathways.
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Affiliation(s)
- Qi Tang
- Department of Ophthalmology, University Medical Center, Johannes Gutenberg University Mainz, Langenbeckstrasse 1, 55131 Mainz, Germany; (F.B.); (E.W.B.); (L.Z.); (N.P.); (C.A.K.)
| | | | | | | | | | | | - Adrian Gericke
- Department of Ophthalmology, University Medical Center, Johannes Gutenberg University Mainz, Langenbeckstrasse 1, 55131 Mainz, Germany; (F.B.); (E.W.B.); (L.Z.); (N.P.); (C.A.K.)
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Ornelas IM, Silva TM, Pereira MR, França GR, Ventura ALM. Cell cycle regulation by ADP and IGF-1 in cultured late developing glia progenitors of the avian retina. Purinergic Signal 2023:10.1007/s11302-023-09982-7. [PMID: 38151691 DOI: 10.1007/s11302-023-09982-7] [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: 08/15/2023] [Accepted: 11/30/2023] [Indexed: 12/29/2023] Open
Abstract
In the avian retina, ADP induces the proliferation of late developing glia progenitors. Here, we show that in serum-containing retinal cell cultures, ADP-induced increase in [3H]-thymidine incorporation can be prevented by the IGF-1 receptor antagonists AG1024 and I-OMe-Tyrphostin AG 538, suggesting the participation of IGF-1 in ADP-mediated progenitor proliferation. In contrast, no increase in [3H]-thymidine incorporation is observed in retinal cultures treated only with IGF-1. Under serum starvation, while no increase in cell proliferation is detected in cultures treated only with ADP or IGF-1, a significant increase in [3H]-thymidine incorporation and number of PCNA expressing cells is observed in cultures treated concomitantly with ADP plus IGF-1, suggesting that both molecules are required to induce proliferation of retinal progenitors. In serum-starved cultures, although an increase in cell viability is detected by MTT assays in IGF-1-treated cultures, no significant increase in viability of [3H]-thymidine labeled progenitors is observed, suggesting that IGF-1 may contribute to survival of postmitotic cells in culture. While only ADP increases intracellular calcium, only IGF-1 induces the phosphorylation of Akt in the retinal cultures. IGF-1 through the PI3K/Akt pathway induces a significant increase in the transcription and expression of CDK1 with a decrease in phospho-histone H3 expression that is concomitant with an increase in the expression of cyclins D1 and E and CDK2. These findings suggest that IGF-1 stimulates CDK-1 mRNA and protein expression that enable progenitors to progress through the cell cycle. However, signaling of ADP in the presence IGF-I seems to be required for DNA synthesis.
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Affiliation(s)
- Isis Moraes Ornelas
- Department of Physiological Sciences, Federal University of Espírito Santo, Vitória, Espírito Santo, 29047-105, Brazil
| | - Thayane Martins Silva
- Department of Neurobiology, Neuroscience Program, Federal Fluminense University, Rua Prof. M.W. de Freitas Reis, bloco M, sala 409, São Domingos, Niterói, Rio de Janeiro, CEP 24210-201, Brazil
| | - Mariana Rodrigues Pereira
- Department of Neurobiology, Neuroscience Program, Federal Fluminense University, Rua Prof. M.W. de Freitas Reis, bloco M, sala 409, São Domingos, Niterói, Rio de Janeiro, CEP 24210-201, Brazil
| | - Guilherme Rapozeiro França
- Department of Physiological Sciences, Federal University of the State of Rio de Janeiro, Rua Frei Caneca 94, Centro, Rio de Janeiro, RJ, CEP 20211-040, Brazil
| | - Ana Lucia Marques Ventura
- Department of Neurobiology, Neuroscience Program, Federal Fluminense University, Rua Prof. M.W. de Freitas Reis, bloco M, sala 409, São Domingos, Niterói, Rio de Janeiro, CEP 24210-201, Brazil.
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Jerome AD, Sas AR, Wang Y, Wen J, Atkinson JR, Webb A, Liu T, Segal BM. Cytokine polarized, alternatively activated bone marrow neutrophils drive axon regeneration. RESEARCH SQUARE 2023:rs.3.rs-3491540. [PMID: 37961609 PMCID: PMC10635390 DOI: 10.21203/rs.3.rs-3491540/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
The adult central nervous system (CNS) possesses a limited capacity for self-repair. Severed CNS axons typically fail to regrow. There is an unmet need for treatments designed to enhance neuronal viability, facilitate axon regeneration, and ultimately restore lost neurological functions to individuals affected by traumatic CNS injury, multiple sclerosis, stroke, and other neurological disorders. Here we demonstrate that both mouse and human bone marrow (BM) neutrophils, when polarized with a combination of recombinant interleukin (IL)-4 and granulocyte-colony stimulating factor (G-CSF), upregulate alternative activation markers and produce an array of growth factors, thereby gaining the capacity to promote neurite outgrowth. Moreover, adoptive transfer of IL-4/G-CSF polarized BM neutrophils into experimental models of CNS injury triggered substantial axon regeneration within the optic nerve and spinal cord. These findings have far-reaching implications for the future development of autologous myeloid cell-based therapies that may bring us closer to effective solutions for reversing CNS damage.
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Affiliation(s)
- Andrew D. Jerome
- Department of Neurology, The Ohio State University
- The Neuroscience Research Institute, The Ohio State University
| | - Andrew R. Sas
- Department of Neurology, The Ohio State University
- The Neuroscience Research Institute, The Ohio State University
| | - Yan Wang
- Department of Neurology, The Ohio State University
- The Neuroscience Research Institute, The Ohio State University
| | - Jing Wen
- The James Comprehensive Cancer Center, The Ohio State University
| | - Jeffrey R. Atkinson
- Department of Neurology, The Ohio State University
- The Neuroscience Research Institute, The Ohio State University
| | - Amy Webb
- The James Comprehensive Cancer Center, The Ohio State University
- Department of Biomedical Informatics, The Ohio State University
| | - Tom Liu
- Department of Neurology, The Ohio State University
- The Neuroscience Research Institute, The Ohio State University
| | - Benjamin M. Segal
- Department of Neurology, The Ohio State University
- The Neuroscience Research Institute, The Ohio State University
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Beitia M, Delgado D, Mercader J, Sánchez P, López de Dicastillo L, Sánchez M. Action of Platelet-Rich Plasma on In Vitro Cellular Bioactivity: More than Platelets. Int J Mol Sci 2023; 24:ijms24065367. [PMID: 36982439 PMCID: PMC10049396 DOI: 10.3390/ijms24065367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 03/07/2023] [Accepted: 03/09/2023] [Indexed: 03/18/2023] Open
Abstract
Platelet-rich plasma (PRP) is a biological therapy in which one of the mechanisms of action is the stimulation of biological processes such as cell proliferation. The size of PRP’s effect depends on multiple factors, one of the most important being the composition of PRP. The aim of this study was to analyze the relationship between cell proliferation and the levels of certain growth factors (IGF-1, HGF, PDGF, TGF-β and VEG) in PRP. First, the composition and effect on cell proliferation of PRP versus platelet-poor plasma (PPP) were compared. Subsequently, the correlation between each growth factor of PRP and cell proliferation was evaluated. Cell proliferation was higher in cells incubated with lysates derived from PRP compared to those cultured with lysates derived from PPP. In terms of composition, the levels of PDGF, TGF-β, and VEGF were significantly higher in PRP. When analyzing the PRP growth factors, IGF-1 was the only factor that correlated significantly with cell proliferation. Of those analyzed, the level of IGF-1 was the only one that did not correlate with platelet levels. The magnitude of PRP’s effect depends not only on platelet count but also on other platelet-independent molecules.
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Affiliation(s)
- Maider Beitia
- Advanced Biological Therapy Unit, Hospital Vithas Vitoria, 01008 Vitoria-Gasteiz, Spain
| | - Diego Delgado
- Advanced Biological Therapy Unit, Hospital Vithas Vitoria, 01008 Vitoria-Gasteiz, Spain
| | - Jon Mercader
- Microfluidics Cluster UPV/EHU, BIOMICs Microfluidics Group, Lascaray Research Center, University of the Basque Country UPV/EHU, 01006 Vitoria-Gasteiz, Spain
- Arthroscopic Surgery Unit, Hospital Vithas Vitoria, 01008 Vitoria-Gasteiz, Spain
| | - Pello Sánchez
- Advanced Biological Therapy Unit, Hospital Vithas Vitoria, 01008 Vitoria-Gasteiz, Spain
| | | | - Mikel Sánchez
- Advanced Biological Therapy Unit, Hospital Vithas Vitoria, 01008 Vitoria-Gasteiz, Spain
- Arthroscopic Surgery Unit, Hospital Vithas Vitoria, 01008 Vitoria-Gasteiz, Spain
- Correspondence: ; Tel.: +34-945-252077
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