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Poly-D,L-Lactic Acid Filler Attenuates Ultraviolet B-Induced Skin Pigmentation by Reducing Destruction of the Basement Membrane

Overview
Journal Int J Mol Sci
Publisher MDPI
Date 2024 Nov 9
PMID 39519119
Authors
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Abstract

Poly-D,L-lactic acid (PDLLA) filler, which increases volume and collagen synthesis, is used for skin rejuvenation. PDLLA filler also increases M2 macrophages and IL-10. Ultraviolet (UV) radiation induces dermal hyperpigmentation by disrupting the basement membrane (BM), allowing melanin to move into the dermis. Therefore, using UV-irradiated macrophages and animal skin, we determined whether PDLLA filler decreased M1 macrophages and skin inflammation, thereby reducing BM destruction and dermal hyperpigmentation. UV radiation increased the M1 macrophage marker CD86 and TNF-α expression, which was inhibited by the treatment of macrophages with PDLLA. In fibroblasts treated with conditioned medium from UV-irradiated macrophages, NF-κB activity, NLRP3 inflammasome components (NLRP3, ASC, and pro-caspase-1), IL-18, MMP2, and MMP9 increased, but all decreased after PDLLA treatment. Similar to the in vitro study, UV-irradiated mouse skin showed increased CD86, NLRP3, ASC, pro-caspase-1, MMP2, and MMP9, which decreased after PDLLA injection. Disruption of the lamina densa of the BM and dermal pigmentation increased after UV irradiation and decreased after PDLLA injection. In conclusion, PDLLA reduced dermal pigmentation by decreasing BM destruction in UV-irradiated skin. PDLLA has the potential to reduce dermal pigmentation by regenerating the BM.

References
1.
Feldmeyer L, Keller M, Niklaus G, Hohl D, Werner S, Beer H . The inflammasome mediates UVB-induced activation and secretion of interleukin-1beta by keratinocytes. Curr Biol. 2007; 17(13):1140-5. DOI: 10.1016/j.cub.2007.05.074. View

2.
Tanaka K, Hasegawa J, Asamitsu K, Okamoto T . Prevention of the ultraviolet B-mediated skin photoaging by a nuclear factor kappaB inhibitor, parthenolide. J Pharmacol Exp Ther. 2005; 315(2):624-30. DOI: 10.1124/jpet.105.088674. View

3.
Hasegawa T, Nakashima M, Suzuki Y . Nuclear DNA damage-triggered NLRP3 inflammasome activation promotes UVB-induced inflammatory responses in human keratinocytes. Biochem Biophys Res Commun. 2016; 477(3):329-35. DOI: 10.1016/j.bbrc.2016.06.106. View

4.
Grimes P . Management of hyperpigmentation in darker racial ethnic groups. Semin Cutan Med Surg. 2009; 28(2):77-85. DOI: 10.1016/j.sder.2009.04.001. View

5.
Nakajima H, Ezaki Y, Nagai T, Yoshioka R, Imokawa G . Epithelial-mesenchymal interaction during UVB-induced up-regulation of neutral endopeptidase. Biochem J. 2012; 443(1):297-305. DOI: 10.1042/BJ20111876. View