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Srivastava GK, Rodriguez-Crespo D, Fernandez-Bueno I, Pastor JC. Factors influencing mesenchymal stromal cells in in vitro cellular models to study retinal pigment epithelial cell rescue. Hum Cell 2022; 35:1005-1015. [PMID: 35511404 DOI: 10.1007/s13577-022-00705-5] [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: 02/09/2022] [Accepted: 04/17/2022] [Indexed: 11/29/2022]
Abstract
Mesenchymal stromal cells (MSC) stop or slow retinal pigment epithelium (RPE) and neuroretina (NR) degeneration by paracrine activity in oxidative stress-induced retinal degenerative diseases. However, it is mandatory to develop adequate in vitro models that allow testing new treatment strategies against oxidative stress before performing in vivo studies. The viable double- and triple-layered setups are composed of separate layers of NR, MSC, and RPE (NR-MSC-RPE, NR-RPE, MSC-RPE) partially mimic in vivo retinal conditions. In this study, the paracrine neuroprotective effect of each setup's microenvironment on hydrogen peroxide (H2O2)-stressed was compared with unstressed RPE cells. RPE cell proliferation viability was assessed on day 1, 3, and 6 using Alamar Blue® (10%), MTT (10%) and a cell viability/cytotoxicity assay kit followed by data analysis. The results showed that RPE cells, highly viable (> 90%) in mixed medium of DMEM and neurobasal A (1:1), lost 50% viability on exposure to 400 µM of H2O2 (P < 0.05). The unexposed groups differed significantly from exposed groups for RPE cell growth (RPE and [Formula: see text]RPE (P < 0.0001), NR-MSC-RPE, and NR-MSC-[Formula: see text]RPE (P < 0.05), NR-RPE and NR-[Formula: see text]RPE (P < 0.01), and MSC-RPE and MSC-[Formula: see text]RPE (P < 0.01). NR-[Formula: see text]RPE and NR-RPE supported RPE cell proliferation viability better than other setups (P < 0.01) and RPE cells proliferated 0.49-fold more in NR-MSC-[Formula: see text]RPE than NR-MSC-RPE. Thus, NR and MSC presence improved significantly each setup's microenvironment for cell rescue, nevertheless, each setup also showed limitations for its use as an in vitro study tool. Health of microenvironment of such setups depends on many factors including cell-secreted trophic factors.
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Affiliation(s)
- Girish K Srivastava
- Retina Group, Instituto Universitario de Oftalmobiología Aplicada (IOBA), Universidad de Valladolid, Campus Miguel Delibes, Paseo de Belén, 17, 47011, Valladolid, Spain. .,Centro en Red de Medicina Regenerativa y Terapia Celular de Castilla Y León, Valladolid, Spain.
| | - David Rodriguez-Crespo
- Retina Group, Instituto Universitario de Oftalmobiología Aplicada (IOBA), Universidad de Valladolid, Campus Miguel Delibes, Paseo de Belén, 17, 47011, Valladolid, Spain
| | - Ivan Fernandez-Bueno
- Retina Group, Instituto Universitario de Oftalmobiología Aplicada (IOBA), Universidad de Valladolid, Campus Miguel Delibes, Paseo de Belén, 17, 47011, Valladolid, Spain
| | - José Carlos Pastor
- Retina Group, Instituto Universitario de Oftalmobiología Aplicada (IOBA), Universidad de Valladolid, Campus Miguel Delibes, Paseo de Belén, 17, 47011, Valladolid, Spain.,Centro en Red de Medicina Regenerativa y Terapia Celular de Castilla Y León, Valladolid, Spain
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Lyu Q, Ludwig IS, Kooten PJS, Sijts AJAM, Rutten VPMG, van Eden W, Broere F. Leucinostatin acts as a co-inducer for heat shock protein 70 in cultured canine retinal pigment epithelial cells. Cell Stress Chaperones 2020; 25:235-243. [PMID: 31940135 PMCID: PMC7058576 DOI: 10.1007/s12192-019-01066-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Revised: 11/08/2019] [Accepted: 12/30/2019] [Indexed: 02/07/2023] Open
Abstract
Dysregulation of retinal pigment epithelium (RPE) cells is the main cause of a variety of ocular diseases. Potentially heat shock proteins, by preventing molecular and cellular damage and modulating inflammatory disease, may exert a protective role in eye disease. In particular, the inducible form of heat shock protein 70 (Hsp70) is widely upregulated in inflamed tissues, and in vivo upregulation of Hsp70 expression by HSP co-inducing compounds has been shown to be a potential therapeutic strategy for inflammatory diseases. In order to gain further understanding of the potential protective effects of Hsp70 in RPE cells, we developed a method for isolation and culture of canine RPE cells. Identity of RPE cells was confirmed by detection of its specific marker, RPE65, in qPCR, flow cytometry, and immunocytochemistry analysis. The ability of RPE cells to express Hsp70 upon experimental induction of cell stress, by arsenite, was analyzed by flow cytometry. Finally, in search of a potential Hsp70 co-inducer, we investigated whether the compound leucinostatin could enhance Hsp70 expression in stressed RPE cells. Canine RPE cells were isolated and cultured successfully. Purity of cells that strongly expressed RPE65 was over 90%. Arsenite-induced stress led to a time- and dose-dependent increase in Hsp70 expression in canine RPE cells in vitro. In addition, leucinostatin, which enhanced heat shock factor-1-induced transcription from the heat shock promoter in DNAJB1-luc-O23 reporter cell line, also enhanced Hsp70 expression in arsenite-stressed RPE cells, in a dose-dependent fashion. These findings demonstrate that leucinostatin can boost Hsp70 expression in canine RPE cells, most likely by activating heat shock factor-1, suggesting that leucinostatin might be applied as a new co-inducer for Hsp70 expression.
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Affiliation(s)
- Qingkang Lyu
- Department of Infectious Diseases and Immunology, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 1, Utrecht, The Netherlands
| | - Irene S. Ludwig
- Department of Infectious Diseases and Immunology, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 1, Utrecht, The Netherlands
| | - Peter J. S. Kooten
- Department of Infectious Diseases and Immunology, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 1, Utrecht, The Netherlands
| | - Alice J. A. M. Sijts
- Department of Infectious Diseases and Immunology, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 1, Utrecht, The Netherlands
| | - Victor P. M. G. Rutten
- Department of Veterinary Tropical Diseases, Faculty of Veterinary Science, Pretoria University, Pretoria, South Africa
| | - Willem van Eden
- Department of Infectious Diseases and Immunology, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 1, Utrecht, The Netherlands
| | - Femke Broere
- Department of Infectious Diseases and Immunology, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 1, Utrecht, The Netherlands
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Triple-layered mixed co-culture model of RPE cells with neuroretina for evaluating the neuroprotective effects of adipose-MSCs. Cell Tissue Res 2014; 358:705-16. [PMID: 25213807 DOI: 10.1007/s00441-014-1987-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2014] [Accepted: 08/07/2014] [Indexed: 10/24/2022]
Abstract
Mesenchymal stem cell (MSC) therapy is promising for neuroprotection but there is no report of an appropriate in vitro model mimicking the situation of the in vivo retina that is able to test the effect of MSCs in suspension or encapsulated with/without a drug combination. This study aims to establish a viable mixed co-culture model having three layers: neuroretina explants (NRs), retinal pigment epithelium (RPE) cells and adipose tissue-derived MSCs (AT-MSCs) for evaluating adipose-MSC effects. AT-MSCs were grown on the lower surface of a transwell membrane and RPE cells were grown on the bottom of a culture plate as monocultures. A transwell membrane was inserted into a culture plate well. NR was placed as an organotypic culture on the upper surface of the transwell membrane. Thus, a triple-layered co-culture setup was constructed. In double-layered setups, NR were co-cultured with AT-MSCs or RPE cells. Optimum medium, experiment execution period and transwell membrane permeability (TMP) were determined. MSC effects on RPE cell proliferation and NR reactive gliosis were evaluated. Limitations were discussed. Our study shows that neurobasal A with DMEM (1:1) mixed medium was suitable for viability of all three layers. AT-MSC growth decreased TMP significantly, 30-60 % in 3- to 6-day periods. Spontaneous NR reactive gliosis limits the experiment execution period to 6 days. AT-MSCs maintained their undifferentiated nature and showed no or limited neuroprotective effects. In this study, we successfully assembled viable double- and triple-layered co-culture setups for AT-MSCs, RPE and NR, optimised conditions for their survival and explored setup Limitations.
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Singh AK, Srivastava GK, Martín L, Alonso M, Pastor JC. Bioactive substrates for human retinal pigment epithelial cell growth from elastin-like recombinamers. J Biomed Mater Res A 2013; 102:639-46. [DOI: 10.1002/jbm.a.34726] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2012] [Revised: 02/06/2013] [Accepted: 03/04/2013] [Indexed: 12/13/2022]
Affiliation(s)
- Amar K. Singh
- IOBA-Eye Institute; University of Valladolid; Valladolid Spain
| | - Girish K. Srivastava
- IOBA-Eye Institute; University of Valladolid; Valladolid Spain
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN); Valladolid Spain
- Regenerative Medicine and Cell Therapy Networking Center of “Castilla y León”; Spain
| | - Laura Martín
- BIOFORGE Group, University of Valladolid, Valladolid; Spain
| | - Matilde Alonso
- BIOFORGE Group, University of Valladolid, Valladolid; Spain
| | - J. Carlos Pastor
- IOBA-Eye Institute; University of Valladolid; Valladolid Spain
- Regenerative Medicine and Cell Therapy Networking Center of “Castilla y León”; Spain
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