期刊
BIOACTIVE MATERIALS
卷 6, 期 2, 页码 299-311出版社
KEAI PUBLISHING LTD
DOI: 10.1016/j.bioactmat.2020.08.007
关键词
DSW therapy; Rubidium; Hydrogels; Imiquimod; Psoriasis
资金
- National Natural Science Funds for Distinguished Young Scholar of China [51625404]
- China Scholarship Council [202006370330]
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha, China
The prepared Rb-SA/PAAm hydrogels for psoriasis treatment showed good mechanical properties, antibacterial ability, and the ability to alleviate symptoms caused by Imiquimod in mice.
Psoriasis is a long-lasting and recurrent autoimmune disease which is incurable so far. Dead Sea water (DSW) therapy is an effective approach to help control the symptoms of psoriasis due to the abundant mineral ions in DSW, which inspired the material formulation in this study. Rubidium-Sodium alginate/Polyacrylamide hydrogels (Rb-SA/PAAm gels) composed of sodium alginate and polyacrylamide interpenetrating network structure with different concentrations of rubidium and certain magnesium and zinc content were prepared for the treatment of psoriasis. The obtained results suggest the good mechanical properties of the Rb-SA/PAAm gels including toughness and swelling performance. In terms of in vitro tests, the Rb-SA/PAAm gels not only show nontoxicity to human keratinocyte cell line (Hacats) but also inhibits the activity against inflammatory NF-kappa beta signaling pathway. Meanwhile, they can release Rb+ which enable the Rb-SA/PAAm gels have better antibacterial ability to Streptococcus and Escherichia coli. The results obtained from in vivo tests indicate that these hydrogels could alleviate the symptoms of psoriasis caused by Imiquimod (IMQ) in mice by reducing the inflammatory factor in STAT3 pathway and therefore reduce the immune stimulation of the spleen. In conclusion, the 100Rb-SA/PAAm gel has demonstrated great potential to be a topical wettable dressing for psoriasis treatment.
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