Human skin is constantly exposed to damaging ultraviolet radiation (UVR), which induces a number of acute and chronic disorders. To reduce the risk of UV-induced skin injury, people apply an additional external protection in the form of cosmetic products containing sunscreens. Nowadays, because of the use of some chemical filters raises a lot of controversies, research focuses on exploring novel, fully safe and highly efficient natural UV-absorbing compounds that could be used as active ingredients in sun care products. A promising alternative is the application of multifunctional mycosporine-like amino acids (MAAs), which can effectively compete with commercially available filters. Here, we outline a complete characterization of these compounds and discuss their enormous biotechnological potential with special emphasis on their use as sunscreens, activators of cells proliferation, anti-cancer agents, anti-photoaging molecules, stimulators of skin renewal, and functional ingredients of UV-protective biomaterials.
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http://dx.doi.org/10.3390/md15100326 | DOI Listing |
Indian J Microbiol
December 2024
School of Basic and Applied Sciences, Nirwan University, Jaipur, Rajasthan 303305 India.
Recently, many studies have revealed the association between environmental stresses and skin disorders. Skin protects the inner body organs as a first line of defence against various environmental detriments. The physical, chemical, biological, and environmental stresses and internal factors, including reactive oxygen species, can lead to skin aging, laxity, wrinkles, dryness, and coarse texture.
View Article and Find Full Text PDFJ Photochem Photobiol B
December 2024
Departamento de Química, Instituto de Investigación en Química (IQUR), Universidad de La Rioja, Madre de Dios, 53, 26006 Logroño, La Rioja, Spain.
The combination of environmental stress on the ozone layer, climate change and a greater sun exposure due to outdoor habits has led to an increase in skin cancer cases and other health issues related with UV radiation. Researchers are searching for new alternative UV filters that could protect our skin from the deleterious effects of UV radiation while also presenting low toxicity and biodegradable character (unlike the UV filters currently available in the market). In this work, two compounds inspired in the natural oxo-mycosporine-like amino acids (MAAs) have been synthesized and their antioxidant and photoprotective properties, as well as their in vitro and in vivo toxicity effects were evaluated.
View Article and Find Full Text PDFWorld J Microbiol Biotechnol
November 2024
Laboratory of Photobiology and Molecular Microbiology, Department of Botany, Institute of Science, Banaras Hindu University, Varanasi, 221005, India.
Mycosporine-like amino acids (MAAs) are a unique class of UV-screening bioactive molecules with potent antioxidants and photoprotective properties, synthesized by various species of cyanobacteria in different habitats. The cyanobacterial biofilms play a crucial driver in the development of ecological communities. The current study examined the existence of the photoprotective MAAs in a novel epilithic cyanobacterium Lyngbya sp.
View Article and Find Full Text PDFMicrobiol Resour Announc
December 2024
Graduate School of Environmental and Human Sciences, Meijo University, Nagoya, Japan.
We report the draft genome sequence of sp. BRSZ isolated from Bo Khlueng hot spring in Thailand, comprising 42 contigs assembled at the scaffold level, totaling 6,084,403 bp, with 43.5% G + C content.
View Article and Find Full Text PDFRSC Chem Biol
August 2024
Department of Microbiology, Faculty of Agriculture and Forestry, University of Helsinki 00014 Helsinki Finland
Mycosporine-like amino acids (MAAs) are a family of water-soluble and colorless secondary metabolites, with high extinction coefficients, that function as microbial sunscreens. MAAs share a cyclohexinimine chromophore that is diversified through amino acid substitutions and attachment of sugar moieties. The genetic and enzymatic bases for the chemical diversity of MAAs remain largely unexplored.
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