1
|
Wong YS, Mançanares AC, Navarrete FI, Poblete PM, Méndez-Pérez L, Ferreira-Dias GML, Rodriguez-Alvarez L, Castro FO. Mare stromal endometrial cells differentially modulate inflammation depending on oestrus cycle status: an in vitro study. Front Vet Sci 2023; 10:1271240. [PMID: 37869492 PMCID: PMC10587403 DOI: 10.3389/fvets.2023.1271240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 09/13/2023] [Indexed: 10/24/2023] Open
Abstract
The modulation of inflammation is pivotal for uterine homeostasis. Here we evaluated the effect of the oestrus cycle on the expression of pro-inflammatory and anti-inflammatory markers in a cellular model of induced fibrosis. Mare endometrial stromal cells isolated from follicular or mid-luteal phase were primed with 10 ng/mL of TGFβ alone or in combination with either IL1β, IL6, or TNFα (10 ng/mL each) or all together for 24 h. Control cells were not primed. Messenger and miRNA expression were analyzed using real-time quantitative PCR (RT-qPCR). Cells in the follicular phase primed with pro-inflammatory cytokines showed higher expression of collagen-related genes (CTGF, COL1A1, COL3A1, and TIMP1) and mesenchymal marker (SLUG, VIM, CDH2, and CDH11) genes; p < 0.05. Cells primed during the mid-luteal overexpressed genes associated with extracellular matrix, processing, and prostaglandin E synthase (MMP2, MMP9, PGR, TIMP2, and PTGES; p < 0.05). There was a notable upregulation of pro-fibrotic miRNAs (miR17, miR21, and miR433) in the follicular phase when the cells were exposed to TGFβ + IL1β, TGFβ + IL6 or TGFβ + IL1β + IL6 + TNFα. Conversely, in cells from the mid-luteal phase, the treatments either did not or diminished the expression of the same miRNAs. On the contrary, the anti-fibrotic miRNAs (miR26a, miR29b, miR29c, miR145, miR378, and mir488) were not upregulated with treatments in the follicular phase. Rather, they were overexpressed in cells from the mid-luteal phase, with the highest regulation observed in TGFβ + IL1β + IL6 + TNFα treatment groups. These miRNAs were also analyzed in the extracellular vesicles secreted by the cells. A similar trend as seen with cellular miRNAs was noted, where anti-fibrotic miRNAs were downregulated in the follicular phase, while notably elevated pro-fibrotic miRNAs were observed in extracellular vesicles originating from the follicular phase. Pro-inflammatory cytokines may amplify the TGFβ signal in the follicular phase resulting in significant upregulation of extracellular matrix-related genes, an imbalance in the metalloproteinases, downregulation of estrogen receptors, and upregulation of pro-fibrotic factors. Conversely, in the luteal phase, there is a protective role mediated primarily through an increase in anti-fibrotic miRNAs, a decrease in SMAD2 phosphorylation, and reduced expression of fibrosis-related genes.
Collapse
Affiliation(s)
- Yat S. Wong
- Laboratory of Animal Biotechnology, Faculty of Veterinary Sciences, Department of Animal Science, Universidad de Concepción, Chillán, Chile
| | - Ana C. Mançanares
- Laboratory of Animal Biotechnology, Faculty of Veterinary Sciences, Department of Animal Science, Universidad de Concepción, Chillán, Chile
| | - Felipe I. Navarrete
- Laboratory of Animal Biotechnology, Faculty of Veterinary Sciences, Department of Animal Science, Universidad de Concepción, Chillán, Chile
| | - Pamela M. Poblete
- Laboratory of Animal Biotechnology, Faculty of Veterinary Sciences, Department of Animal Science, Universidad de Concepción, Chillán, Chile
| | - Lídice Méndez-Pérez
- Laboratory of Animal Biotechnology, Faculty of Veterinary Sciences, Department of Animal Science, Universidad de Concepción, Chillán, Chile
| | - Graça M. L. Ferreira-Dias
- Faculty of Veterinary Medicine, Department of Morphology and Function, CIISA—Centre for Interdisciplinary Research in Animal Health, University of Lisbon, Lisbon, Portugal
- Associate Laboratory for Animal and Veterinary Sciences (AL4AnimalS), Lisbon, Portugal
| | - Lleretny Rodriguez-Alvarez
- Laboratory of Animal Biotechnology, Faculty of Veterinary Sciences, Department of Animal Science, Universidad de Concepción, Chillán, Chile
| | - Fidel Ovidio Castro
- Laboratory of Animal Biotechnology, Faculty of Veterinary Sciences, Department of Animal Science, Universidad de Concepción, Chillán, Chile
| |
Collapse
|