UV-C irradiation accelerates neutral lipid synthesis in the marine oleaginous diatom Fistulifera solaris

Arakaki, Atsushi; Matsumoto, Takuya; Tateishi, Takuma; Matsumoto, Mitsufumi; Nojima, Daisuke; Yoshino, Tomoko; Tanaka, Tsuyoshi

doi:10.1016/j.biortech.2017.05.188

Cited by 15 publications

(3 citation statements)

References 36 publications

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“…It is reported that UV radiation induces sunburned cellular apoptosis [ 30 ]. Apoptosis due to UV is affected by different signaling pathways, which rely on UV intensity and cell type.…”

Section: Resultsmentioning

confidence: 99%

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Purified Astaxanthin from Haematococcus pluvialis Promotes Tissue Regeneration by Reducing Oxidative Stress and the Secretion of Collagen In Vitro and In Vivo

Chou

Leung

et al. 2020

Oxidative Medicine and Cellular Longevity

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Intracellular reactive apoptosis and reactive oxygen species (ROS) play a crucial role in ultraviolet- (UV-) induced inflammation and aging reaction in human dermal tissues. This study determines the mechanism by which Haematococcus pluvialis extracts (HPE) and purified astaxanthin (HPA) to promote skin regeneration in the injured tissue in vitro and in vivo. The results show that HPE and HPA decrease the DNA damage and promote the secretion of collagen from the human normal fibroblast cell line (Hs68) in a dose-dependent manner. UV irradiation and HPA reduce oxidative stress damage due to phorbol-12-myristate-13-acetate (PMA). When skin cells are injured by free radicals, cells undergo a programmed cellular death. Cellular apoptotic death is determined using annexin V-fluorescein isothiocyanate (FITC)/propidium iodide (PI) double staining to verify that there is no cell membrane asymmetry and that the nuclear membrane is broken. Inflammatory symptoms and apoptotic injuries to experimental rats in a group that is treated with HPA treated are decreased in a dose-dependent manner after UVB exposure (300 mJ/cm2) for 15 min in vivo, compared to the vehicle control group. These positive results show that HPA repairs UVB-triggered skin tissue injury and aging by conducting electrons out of cells to maintain a low level of oxidative stress so that collagen is synthesized in vitro and in vivo.

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“…It is reported that UV radiation induces sunburned cellular apoptosis [ 30 ]. Apoptosis due to UV is affected by different signaling pathways, which rely on UV intensity and cell type.…”

Section: Resultsmentioning

confidence: 99%

“…Collagen production is increased after 24 hr treatment with HPA, so HPA regenerates damaged dermal cells. It is reported that UV radiation induces sunburned cellular apoptosis [30]. Apoptosis due to UV is affected by different signaling pathways, which rely on UV intensity and cell type.…”

Section: The Inhibition Of Intracellular Ros Production By Hpamentioning

confidence: 99%

Purified Astaxanthin from Haematococcus pluvialis Promotes Tissue Regeneration by Reducing Oxidative Stress and the Secretion of Collagen In Vitro and In Vivo

Chou

Leung

et al. 2020

Oxidative Medicine and Cellular Longevity

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“…Oil accumulation in microalgae is known to be significantly affected by exposing cells to environmental stress (ultraviolet radiation) (Arakaki et al, 2017), nutrient depletion (Pancha et al, 2014), salinity (BenMoussa-Dahmen et al, 2016), oxidative stress (Yilancioglu et al, 2014), temperature or pH changes. In order to reduce the stress condition, these parameters also have an impact on the other cell components and trigger the production of new molecules.…”

Section: Uv Protectantmentioning

confidence: 99%

Processes and biorefinery approach for enhanced algal bioproduct recovery in the form of lipid and UV protectant

Chandra,

Hooshmand

2023

Algal Systems for Resource Recovery From Waste and Wastewater

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This chapter discusses various methodologies for lipid extraction, including solvent extraction, enzymatic treatment, ultrasonic aided extraction, and supercritical carbon dioxide extraction, underscoring the need for further research and optimization for large-scale applications. The chapter further explores the potential symbiotic relationship between algal fuel production and waste treatment. This strategy effectively utilizes microalgae's natural ability to thrive in adverse conditions and sequester CO2 and other pollutants. This approach can simultaneously reduce the environmental footprint while generating valuable biomass for biodiesel production. Another noteworthy point the chapter brings forward is the ability of microalgae to produce valuable compounds under environmental stress, particularly UV radiation. The UV-absorbing compounds such as mycosporine-like amino acids (MAAs) and scytonemin, present substantial potential for use in the cosmetic and pharmaceutical sectors due to their potent UV absorption and photoprotective properties.

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Different Responses of Photosynthesis to Nitrogen Starvation Between Highly Oil-Accumulative Diatoms, Fistulifera solaris and Mayamaea sp. JPCC CTDA0820

et al. 2023

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UV-C irradiation accelerates neutral lipid synthesis in the marine oleaginous diatom Fistulifera solaris

Cited by 15 publications

References 36 publications

Purified Astaxanthin from Haematococcus pluvialis Promotes Tissue Regeneration by Reducing Oxidative Stress and the Secretion of Collagen In Vitro and In Vivo

Purified Astaxanthin from Haematococcus pluvialis Promotes Tissue Regeneration by Reducing Oxidative Stress and the Secretion of Collagen In Vitro and In Vivo

Processes and biorefinery approach for enhanced algal bioproduct recovery in the form of lipid and UV protectant

Different Responses of Photosynthesis to Nitrogen Starvation Between Highly Oil-Accumulative Diatoms, Fistulifera solaris and Mayamaea sp. JPCC CTDA0820

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