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Skin Anti-Aging Potential of Sulfated Polysaccharides from Cladophora vagabunda Green Seaweed

Alexandra Gaspar-Pintiliescu, Ana-Maria Seciu-Grama, Ana-Maria Prelipcean, Andreia Alecu and 4 more

Polysaccharides | Jul 14, 2026

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Both fractions exhibited antioxidant, anti-collagenase and anti-elastase activities and also a good biocompatibility and capacity to modulate the cell cycle progression in human dermal fibroblast culture.

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Sulfated polysaccharides (SPs) from green seaweed species have been scarcely studied for the development of novel pharmaceutical, cosmetic or nutraceutical products. The present study aimed to investigate the physico-chemical characteristics of the sulfated polysaccharidic fractions isolated from Cladophora vagabunda green seaweed and to evaluate their anti-aging properties in vitro. SPF1 and SPF2 fractions were separated from the purified polysaccharidic extract by size exclusion chromatography. The content of neutral carbohydrates, uronic acids and sulfate was assessed, while Fourier transform infrared spectroscopy (FT-IR) analysis confirmed the presence of a functional group characteristic for sulfated polysaccharides. Capillary zone electrophoresis indicated the monosaccharides profile and the presence of bioactive fucose and uronic acids. The two fractions differed in sulfate content (22.59% and 29.44%). SF2 showed stronger collagenase inhibition (95.69%), whereas SF1 exhibited greater elastase inhibition (84.2%) in comparison with EGCG. Both fractions exhibited antioxidant, anti-collagenase and anti-elastase activities and also a good biocompatibility and capacity to modulate the cell cycle progression in human dermal fibroblast culture. They showed anti-inflammatory potential by inhibition of interleukin-1 beta (IL-1β), tumor necrosis factor-α (TNF-α) and nitric oxide (NO) production in lipopolysaccharide (LPS)-inflamed THP-1-derived macrophages. Also, the level of matrix metalloproteinase-1 (MMP-1) and MMP-9 secretion was reduced after treatment with C. vagabunda fractions with MMP-1 reduced by ~95% in both fractions and MMP-9 reduced by ~79% in SF2 compared with the control. Both fractions stimulated the growth of probiotic cultures Lactobacillus acidophilus and L. rhamnosus. All these results demonstrated, for the first time, the anti-aging potential of sulfated polysaccharides isolated from C. vagabunda green seaweed.

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Alexandra Gaspar-Pintiliescu

first | National Institute of Research and Development for Biological Sciences | ORCID 0000-0002-7878-7953

Ana-Maria Seciu-Grama

middle | National Institute of Research and Development for Biological Sciences

Ana-Maria Prelipcean

middle | National Institute of Research and Development for Biological Sciences

Andreia Alecu

middle | National Institute of Research and Development for Biological Sciences | ORCID 0000-0003-2999-6027

Florentina Gatea

middle | "Ion Ionescu de la Brad" Iasi University of Life Sciences

Otilia Zarnescu

middle | University of Bucharest | ORCID 0000-0001-6894-3281

Ticuţa Negreanu–Pîrjol

middle | Ovidius University | ORCID 0000-0001-9254-1047

Oana Craciunescu

last | National Institute of Research and Development for Biological Sciences | ORCID 0000-0003-0625-3650

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BibTeX

@article{GasparPintiliescu2026Skin,
  title = {Skin Anti-Aging Potential of Sulfated Polysaccharides from Cladophora vagabunda Green Seaweed},
  author = {Alexandra Gaspar-Pintiliescu and Ana-Maria Seciu-Grama and Ana-Maria Prelipcean and Andreia Alecu and Florentina Gatea and Otilia Zarnescu and Ticuţa Negreanu–Pîrjol and Oana Craciunescu},
  journal = {Polysaccharides},
  year = {2026},
  doi = {10.3390/polysaccharides7030087},
  url = {https://doi.org/10.3390/polysaccharides7030087}
}

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