The impact of polyphenols extracted from Tricholoma matsutake on UVB-induced photoaging in mouse skin

Endophytic fungus Umbelopsis sp. TM01 as high-activity alternative to Tricholoma matsutake

Tricholoma matsutake, a rare fungus, is highly valued for its remarkable nutritional content, making it a sought-after biomass resource in both the cosmetics and food sectors. However, its scarcity and restricted natural growth impede large-scale utilization. An endophytic fungus, Umbelopsis sp. TM01, was successfully isolated from the fruiting body of T. matsutake. Research on the biological activity and cytotoxicity of the extract from Umbelopsis sp. TM01 (UFE) and the extract from T. matsutake (TME) showed that UFE outperformed TME in biological activity and had lower cytotoxicity. In the cosmetics-relevant bio-functions, UFE exhibited more potent anti-tyrosinase activity, greater anti-wrinkle efficacy and comparable wound-healing effect to that of TME. UFE was safe for human dermal fibroblasts even at 10% concentration. Metabolomic analysis revealed UFE had diverse secondary metabolites. All in all, Umbelopsis sp. TM01 has great potential as a substitute for T. matsutake in the cosmetics industry.

Effect and Mechanism of Tricholoma matsutake Extract on UVA and UVB Radiation-Induced Skin Aging

Ultraviolet (UV) radiation often causes skin aging, inflammation, cancer and other related skin diseases. In this study, the main components of Tricholoma matsutake extract (TME) were identified using UPLC-Q-TOF-MS, and their anti-photoaging effects were assessed through UV-induced cell and animal models. The key components identified were D-mannitol (27.41%), DL-malic acid (14%), alginate (12.5%), isoleucine (4.82%), and phenylalanine (4.31%), all of which played roles in anti-aging and UV protection. TME (50-100 mg/ml) significantly alleviated UVA/UVB-induced erythema and wrinkles in mice. Pathological staining showed that TME suppressed UV-induced epidermal hyperplasia (p < 0.05), reduced collagen damage (p < 0.01), and decreased mast cell infiltration (p < 0.01), while down-regulating inflammatory markers such as IL-6, IL-1β, and TNF-α. TME also upregulated type I collagen (COL-1). Flow cytometry results demonstrated that high-dose TME inhibited UV-induced apoptosis and reduced reactive oxygen species (ROS) in HaCaT cells (p < 0.05). Immunofluorescence and scratch migration assays showed that TME promoted PPAR-α expression, reduced inflammation, and supported skin repair (p < 0.01). Transcriptomic and metabolomic analyses indicated that TME regulated inflammation-related signaling pathways, helping to prevent skin aging. TME is a promising natural product for skin care and treatment of oxidative stress and inflammation-related diseases.

Effect and mechanism of Tricholoma matsutake extract combined with bakuchiol and ergothioneine on UVB-induced skin aging

BACKGROUND

Aging is a physiological phenomenon in the process of life, and skin aging has a significant impact on human appearance. Therefore, the search for methods to delay skin aging is of great significance for improving the quality of human life.

MATERIALS AND METHODS

This study investigated the anti-photoaging effect of Tricholoma matsutake (T) extract composition combined with bakuchiol (B) and ergothioneine (E), and explored its potential mechanism through transcriptome, metabolomics, and network pharmacology.

RESULTS

57 main chemical components are identified from the ethanol extract of T. matsutake (T), including D-carnitine (24.55%), α,α-trehalose (15.56%), DL malic acid (8.99%), D-(-)-quinic acid (7.46%), erucamide (7.04%) and so on. After TBE treatment, inflammation of the mice dorsal skin is significantly minimized. Hematoxylin and eosin (H&E) staining and toluidine blue staining reveal that TBE has an anti-inflammatory effect on the back skin tissue of mice. Masson staining shows that TBE has a repair effect on mice dorsal skin tissue. In addition, the inflammatory factors (IL-1β, IL-6, TNF-α) in the mice dorsal skin tissues are significantly reduced but collagen (COL-1) is significantly increased. By cellular immunofluorescence assay, TBE is shown to promote PPAR-α expression in cells. Transcriptomics, metabolomics, and network pharmacology have revealed that TBE can regulate exogenous stimuli and cancer-related signaling pathways to prevent skin aging.

CONCLUSION

The results suggest that TBE can be a beneficial supplement to natural anti-aging.

Prinsepia utilis Royle polysaccharides promote skin barrier repair through the Claudin family

BACKGROUND

Plant polysaccharides have various biological activities. However, few studies have been conducted on the skin barrier of Prinsepia utilis Royle polysaccharide extract (PURP).

MATERIALS AND METHODS

The proportions of polysaccharides, monosaccharides and proteins were determined by extracting polysaccharides from fruit meal using water. The healing rate was measured by cell scratch assays. SDS-damaged reconstructed human epidermal models, an acetone-ether-induced mouse model and an IL-4-induced cellular inflammation model were used to detect the effects of polysaccharides on the phenotype, HA, TEWL, and TEER, with further characterizations performed using QRT-PCR, Western blotting, immunofluorescence (IF) assays.

RESULTS

PURP contained 35.73% polysaccharides and 11.1% proteins. PURP promoted cell migration and increased skin thickness in a reconstructed human epidermis model. The TEWL significantly decreased, and the HA content significantly increased. PURP significantly increased the TEER and decreased the permeability of the SDS-damaged reconstructed human epidermis model. Claudin-3, Claudin-4, and Claudin-5 were significantly upregulated. IF and Western blot analysis revealed that the Claudin-4 level significantly increased after treatment with PURP. Claudin-1, Claudin-3, Claudin-4, and Claudin-5 gene expression and IF and immunohistochemical staining were significantly increased in mice treated with acetone-ether. PURP promoted the expression of Claudin-1, Claudin-3, Claudin-4, and Claudin-5 after treatment with 100 ng/mL IL-4. PURP also downregulated the expression of NO, IL6, TNFα and NFκB in Raw 264.7 cells and in a mouse model.

CONCLUSION

We hypothesize that PURP may repair the skin barrier by promoting the expression of the claudin family and can assist in skin therapy.

Protective effects of sugarcane polyphenol against UV-B-induced photoaging in Balb/c mouse skin: Antioxidant, anti-inflammatory, and anti-glycosylation Effects

Although the benefits of sugarcane polyphenol (SP) are well documented, its function in preventing photoaging has not yet been investigated. This study aimed to investigate the protective effects of SP in preventing ultraviolet (UV)-B-induced skin photoaging in Balb/c mice, as well as the underlying mechanism. Chlorogenic acid was determined to be the primary component of SP by using high-performance liquid chromatography-mass spectrometry. SP and chlorogenic acid were orally administrated to mice for 56 days, and UV-B radiation exposure was administered 14 days after SP and chlorogenic acid administration and lasted 42 days to cause photoaging. SP and chlorogenic acid administrations significantly alleviated the UV-B-induced mouse skin photoaging, as indicated by the decrease in epidermal thickness, increase in the collagen (COL) volume fraction, and elevation in type 1 and type 3 COL contents. Notably, both SP and chlorogenic acid effectively reversed the overexpression of matrix metalloproteinase induced by UV-B exposure in the mouse skin. Furthermore, SP and chlorogenic acid reduced the expression of receptor for advanced glycosylation end products in the mice; amplified the activities of antioxidant enzymes superoxide dismutase and catalase; reduced malondialdehyde levels; and decreased inflammatory cytokines interleukin 1β, interleukin 6, and tumor necrosis factor α levels. SP could be a prospective dietary supplement for anti-photoaging applications due to its antioxidant, anti-inflammatory, and anti-glycosylation attributes, and chlorogenic acid might play a major role in these effects. PRACTICAL APPLICATION: This study can provide a scientific basis for the practical application of sugarcane polyphenols. We expect that sugarcane polyphenols can be used in food and beverage products to provide flavor while combating skin aging.

The Benefits of a Multimechanistic Antiaging Skin Technology

INTRODUCTION

Facial aging is a multifactorial phenomenon due to poor skin hydration, deficient intercellular communication, collagen/elastin breakdown, and oxidative stress. The objective of this study was to assess the efficacy of a multimechanistic antiaging prototype formulation on the appearance of photoaged facial skin after 24 weeks of twice daily use.

METHODS

Fifty female subjects 35-65 years of age of all Fitzpatrick skin types with mild to moderate facial photoaging concerns (fine lines, wrinkles, sagging skin, tone and texture) were enrolled in this monadic study. Investigator and subject tolerability assessments were performed along with facial noninvasive corneometry hydration and elasticity measurements. The dermatologist investigator assessed fine lines, wrinkles, skin evenness, radiance, plumping, texture/smoothness, sagging/firming/lifting, and global appearance on a 5-point ordinal scale.

RESULTS

Forty-seven of the 50 subjects completed the study with a 19% increase in skin firmness and a 35% increase in skin hydration via bio-instrumentation readings after 24 weeks of study product use. The investigator assessed a 40% improvement in lines, a 23% improvement in wrinkles, a 42% improvement in evenness, a 64% improvement in radiance, a 58% improvement in plumping, a 65% improvement in texture, a 60% improvement in firmness, and a 45% improvement in overall appearance at 24 weeks.

CONCLUSION

The serum combination of humectants, peptides, and antioxidants yielded excellent tolerability with visual and mechanistic skin improvement beginning at 1 week with cumulative continuing improvement through 24 weeks of use in terms of hydration, firmness, texture, radiance, and fine lines.

Protective effects of Cu/Zn-SOD and Mn-SOD on UVC radiation-induced damage in NIH/3T3 cells and murine skin

Superoxide dismutase (SOD) is an antioxidant enzyme with multiple metal cofactors that can specifically clear reactive oxygen species (ROS), which plays an important role in a variety of ultraviolet-induced lesions. Therefore, SOD has the anti-ultraviolet radiation effect. The objective of this study was to compare the differences in the anti-ultraviolet radiation effect of SOD with distinct metal cofactors: Cu/Zn-SOD and Mn-SOD. SOD was first purified using hydrophobic interaction chromatography and ion-exchange chromatography. Second, the Methylthiazolyldiphenyl-tetrazolium bromide method and cell senescence kits were used to study the protective effect of SOD on ultraviolet-induced cell damage. Finally, the protective effect of SOD on ultraviolet -induced skin damage was histopathologically evaluated, and the expression levels of malondialdehyde (MDA) and matrix metalloproteinases (MMPs) in tissues were detected. The results showed that Cu/Zn-SOD was superior to Mn-SOD in promoting cell proliferation, alleviating cell damage, protecting skin structure, and regulating the expression levels of MDA and MMPs, and it has no side effects. In conclusion, Cu/Zn-SOD had a better anti-ultraviolet radiation effect than Mn-SOD, and it can be used in anti-aging and anti-ultraviolet skin-care products.

miR-1246-overexpressing exosomes suppress UVB-induced photoaging via regulation of TGF-β/Smad and attenuation of MAPK/AP-1 pathway

Stem cell therapy is widely employed for the treatment of skin diseases, especially in skin rejuvenation. Exosomes derived from stem cells have been demonstrated to possess anti-photoaging effects; however, the precise components within exosomes that are responsible for this effect remain unknown. Previously, miR-1246 was found to be one of the most abundant nucleic acids in adipose-derived stem cells (ADSCs)-derived exosomes. This study examined whether miR-1246 was the major therapeutic agent employed by ADSCs to protect against UVB-induced photoaging. Lentivirus infection was used to obtain miR-1246-overexpressing ADSCs and exosomes. We then determined the anti-photoaging effects of miR-1246-overexpressing exosomes (OE-EX) on both UVB-irradiated human skin fibroblasts (HSFs) and Kunming mice. The results showed that OE-EX could significantly decrease MMP-1 by inhibiting the MAPK/AP-1 signaling pathway. Meanwhile, OE-EX markedly increased procollagen type I secretion by activating the TGF-β/Smad pathway. OE-EX also exhibited an anti-inflammatory effect by preventing the UVB-induced degradation of IκB-α and NF-κB overexpression. Animal experiments demonstrated that OE-EX could reduce UVB-induced wrinkle formation, epidermis thickening, and the loss of collagen fibers reduction in Kunming mice. The combined results suggested that miR-1246 is the key component within ADSCs-derived exosomes that protects against UVB-induced skin photoaging.

A new product of multi-plant extracts improved skin photoaging: An oral intake in vivo study

BACKGROUND

Besides the topical application of cosmetics, nutraceuticals represent a promising strategy for preventing skin photoaging and skin cancers.

METHODS

To determine the effect of a new multi-plant extracts product containing Cucumis melo extract, acerola extract, olive fruit, aloe vera gel, grape seed extract, and lycopene, a randomized, placebo-controlled, double-blind clinical trial and an ultraviolet (UV)-induced murine photoaging model were deployed. 55 healthy subjects aged 45-60 were enrolled and randomized to take the product or placebo orally for 12 weeks. Skin aging and whitening indexes were measured with non-invasive techniques. 90 Balb/c mice aged 7-8 weeks were randomly divided into six groups: normal, UV, UV+vehicle, UV+different doses of the product (0.500 g/kg.BW, 0.250 g/kg.BW, 0.125 g/kg.BW, respectively). Except the normal group, mid-dorsal regions were irradiated with UVA+UVB for 8 weeks. Factors of oxidative stress, tyrosinase, and histological analysis of the mid-dorsal skin were determined.

RESULTS

In the clinical trial, the TEWL, hydration, sebum, elasticity, and the L*, a*, melanin index change from baseline, ITA° were significantly improved in the experiment group. In the animal experiment, compared to the UV+vehicle group, UV+high dose group showed significantly lower malondialdehyde (MDA) and tyrosinase, but higher superoxide dismutase (SOD), total antioxidant capacity (T-AOC), and glutathione peroxidase (GSH-Px). The UV+moderate dose group showed significant improvement of MDA and GSH-Px, and the UV+low dose group only showed improvement of GSH-Px. Histological photoaging manifestations were attenuated in the UV+high and moderate dose groups.

CONCLUSIONS

The multi-plant extracts product improved skin photoaging possibly via antioxidant and anti-tyrosinase ways.