This article was originally published here
Inflammopharmacology. 2021 Sep 12. doi: 10.1007/s10787-021-00838-3. Online ahead of print.
ABSTRACT
BACKGROUND: Mesenchymal stem cells-derived adipose tissue (AT-MSCs) are recognized for the treatment of inflammatory diseases including multiple sclerosis (MS). Hypericum perforatum (HP) is an anti-inflammatory pharmaceutical plant with bioactive compounds. Plant tissue culture is a technique to improve desired pharmacological potential. The aim of this study was to compare the anti-inflammatory and proliferative effects of callus with field-growing plant extracts of HP on AT-MSCs derived from MS patients.
MATERIALS AND METHODS: AT-MSCs were isolated and characterized. HP callus was prepared and exposure to light spectrum (blue, red, blue-red, and control). Total phenols, flavonoids, and hypericin of HP callus and plant extracts were measured. The effects of HP extracts concentrations on proliferation were evaluated by MTT assay. Co-culture of AT-MSCs: PBMCs were challenged by HP plant and callus extracts, and Tregs percentage was assessed by flow cytometry.
RESULTS: Identification of MSCs was performed. Data showed that blue light could stimulate total phenols, flavonoids, and hypericin. MTT test demonstrated that plant extract in concentrations (0.03, 1.2, 2.5 and 10 g/ml) and HP callus extract in 10 g/ml significantly increased. Both HP extracts lead to an increase in Tregs percentage in all concentrations. In particular, a comparison between HP plant and callus extracts revealed that Tregs enhanced 3-fold more than control groups in the concentration of 10 g/ml callus.
CONCLUSIONS: High concentrations of HP extracts showed effectiveness on AT-MSCs proliferation and immunomodulatory properties with a certain consequence in callus extract. HP extracts may be considered as supplementary treatments for the patients who receiving MSCs transplantation.
PMID:34510276 | DOI:10.1007/s10787-021-00838-3
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