Secretory factors produced by adipose mesenchymal stem cells downregulate Th17 and increase Treg cells in peripheral blood mononuclear cells from ... View Full Text


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Article Info

DATE

2019-04-03

AUTHORS

Georgi Vasilev, Mariana Ivanova, Ekaterina Ivanova-Todorova, Kalina Tumangelova-Yuzeir, Ekaterina Krasimirova, Rumen Stoilov, Dobroslav Kyurkchiev

ABSTRACT

We aimed to assess the immunoregulatory effects of secretory factors produced by adipose tissue-derived MSC (AT-MSC) on Th17 and Treg subsets from patients with rheumatoid arthritis (RA). 17 patients with active disease matching the ACR/EULAR 2010 criteria for RA were included. Patients' peripheral blood mononuclear cells (PBMC) were cultured in AT-MSC-conditioned medium (AT-MSCcm) and in control medium. The cytokine production of AT-MSC and PBMC was quantified by ELISA. Th17 and Treg were determined by flow cytometry. AT-MSCcm contained: IL-6, IL-17, IL-21, CCL2, CCL5, IL-8, sVEGF-A and PGE2. Cultivation of patients' PBMC with AT-MSCcm increased TGF-β1 (8318 pg/ml; IQR 6327-11,686) vs control medium [6227 pg/ml (IQR 1681-10,148, p = 0.013)]. PBMC cultivated with AT-MSCcm downregulated TNF-α, IL-17A, and IL-21 compared to control PBMC: 5 pg/ml IQR (1.75-11.65) vs 1 pg/ml (IQR 0.7-1.9), p = 0.001; 4.2 pg/ml (IQR 3.1-6.1) vs 2.3 pg/ml (IQR.75-5.42), p = 0.017; 66.9 pg/ml (IQR 40.6-107.2) vs 53 pg/ml (IQR 22-73), p = 0.022. Th17 decreased under the influence of AT-MSCcm: 10.13 ± 3.88% vs 8.98 ± 3.58%, p = 0.02. CD4+FoxP3+, CD4+CD25-FoxP3+, and CD4+CD25+FoxP3+ was 11.35 ± 4.1%; 7.13 ± 3.12% and 4.22 ± 2% in control PBMC. Accordingly, CD4+FoxP3+, CD4+CD25-FoxP3+, and CD4+CD25+FoxP3+ significantly increased in PBMC cultured with AT-MSCcm: 15.6 ± 6.1%, p = 0.001; 9.56 ± 5.4%, p = 0.004 and 6.04 ± 3.6%, p = 0.001. All these effects could define MSC-based approaches as adequate avenues for further treatment development in RA. More... »

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/s00296-019-04296-7

DOI

http://dx.doi.org/10.1007/s00296-019-04296-7

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1113182328

PUBMED

https://www.ncbi.nlm.nih.gov/pubmed/30944956


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38 schema:description We aimed to assess the immunoregulatory effects of secretory factors produced by adipose tissue-derived MSC (AT-MSC) on Th17 and Treg subsets from patients with rheumatoid arthritis (RA). 17 patients with active disease matching the ACR/EULAR 2010 criteria for RA were included. Patients' peripheral blood mononuclear cells (PBMC) were cultured in AT-MSC-conditioned medium (AT-MSCcm) and in control medium. The cytokine production of AT-MSC and PBMC was quantified by ELISA. Th17 and Treg were determined by flow cytometry. AT-MSCcm contained: IL-6, IL-17, IL-21, CCL2, CCL5, IL-8, sVEGF-A and PGE<sub>2</sub>. Cultivation of patients' PBMC with AT-MSCcm increased TGF-β1 (8318 pg/ml; IQR 6327-11,686) vs control medium [6227 pg/ml (IQR 1681-10,148, p = 0.013)]. PBMC cultivated with AT-MSCcm downregulated TNF-α, IL-17A, and IL-21 compared to control PBMC: 5 pg/ml IQR (1.75-11.65) vs 1 pg/ml (IQR 0.7-1.9), p = 0.001; 4.2 pg/ml (IQR 3.1-6.1) vs 2.3 pg/ml (IQR.75-5.42), p = 0.017; 66.9 pg/ml (IQR 40.6-107.2) vs 53 pg/ml (IQR 22-73), p = 0.022. Th17 decreased under the influence of AT-MSCcm: 10.13 ± 3.88% vs 8.98 ± 3.58%, p = 0.02. CD4<sup>+</sup>FoxP3<sup>+</sup>, CD4<sup>+</sup>CD25<sup>-</sup>FoxP3<sup>+</sup>, and CD4<sup>+</sup>CD25<sup>+</sup>FoxP3<sup>+</sup> was 11.35 ± 4.1%; 7.13 ± 3.12% and 4.22 ± 2% in control PBMC. Accordingly, CD4<sup>+</sup>FoxP3<sup>+</sup>, CD4<sup>+</sup>CD25<sup>-</sup>FoxP3<sup>+</sup>, and CD4<sup>+</sup>CD25<sup>+</sup>FoxP3<sup>+</sup> significantly increased in PBMC cultured with AT-MSCcm: 15.6 ± 6.1%, p = 0.001; 9.56 ± 5.4%, p = 0.004 and 6.04 ± 3.6%, p = 0.001. All these effects could define MSC-based approaches as adequate avenues for further treatment development in RA.
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