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Titisari RS, Herawati E, Astirin OP. Oral intake of collagen hydrolysate from mackerel scad ( Decapterus macarellus) attenuates skin photoaging by suppressing the UVB-induced expression of MMP-1 and IL-6. JOURNAL OF COMPLEMENTARY & INTEGRATIVE MEDICINE 2024; 21:71-79. [PMID: 37961756 DOI: 10.1515/jcim-2023-0209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Accepted: 10/23/2023] [Indexed: 11/15/2023]
Abstract
OBJECTIVES Excessive skin exposure to UVB radiation can induce photoaging caused by an imbalance in oxidative stress and inflammatory responses, damaging the skin's structure and surface layer. A previous study revealed that collagen hydrolisate extracted from the skin of mackarel scads (Decapterus macarellus) had antiaging properties that were tested in vitro, which serves as a foundation for a subsequent study of its use in vivo. This study aimed at investigating the repair effect of the mackerel scad's skin collagen hydrolysate (MSS-CH) in photoaging conditions in a mouse model. METHODS MSS-CH was given orally in mice model of skin photoaging under chronic exposure to UVB irradiation for 12 weeks. Morphological and histological changes on the skin were evaluated using SEM and HE staining, along with the measurement of the expression of matrix metalloproteinases (MMP-1) and cytokine pro-inflammatory interleukin 6 (IL-6) using ELISA. RESULTS MSS-CH inhibits the occurrence of epidermal thickening and damage to the dermal layer of the skin. As a result, it restores the epidermis' barrier function and reduces surface damage caused by photoaging. The skin of the MSS-CH treated group exhibited improved physical appearance with reduced fine lines, wrinkles, and enhanced smoothness. Additionally, administering MSS-CH to the mice groups reduced the expression of MMP-1 and IL-6 in UVB-exposed skin. CONCLUSIONS Altogether, this in vivo study demonstrates the photoaging-protective properties of CH-MSS, aligning with previous in vitro data. Thus, MSS-CH emerges as a strong candidate for use as an ingredient in nutraceuticals and biocosmetics.
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Affiliation(s)
- Rizki Sandhi Titisari
- Graduate Program of Bioscience, Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Sebelas Maret, Surakarta 57126, Indonesia
| | - Elisa Herawati
- Graduate Program of Bioscience, Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Sebelas Maret, Surakarta 57126, Indonesia
| | - Okid Parama Astirin
- Graduate Program of Bioscience, Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Sebelas Maret, Surakarta 57126, Indonesia
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Thapa Magar TB, Mallik SK, Gurung P, Lim J, Kim YT, Shrestha R, Kim YW. Chlorin E6-Curcumin-Mediated Photodynamic Therapy Promotes an Anti-Photoaging Effect in UVB-Irradiated Fibroblasts. Int J Mol Sci 2023; 24:13468. [PMID: 37686273 PMCID: PMC10487708 DOI: 10.3390/ijms241713468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 08/24/2023] [Accepted: 08/25/2023] [Indexed: 09/10/2023] Open
Abstract
Skin photoaging due to ultraviolet B (UVB) exposure generates reactive oxygen species (ROS) that increase matrix metalloproteinase (MMP). Chlorin e6-photodynamic therapy (Ce6-PDT), in addition to being the first-line treatment for malignancies, has been shown to lessen skin photoaging, while curcumin is well known for reducing the deleterious effects of ROS. In the current study, PDT with three novel Ce6-curcumin derivatives, a combination of Ce6 and curcumin with various linkers, including propane-1,3-diamine for Ce6-propane-curcumin; hexane-1,6-diamine for Ce6-hexane-curcumin; and 3,3'-((oxybis(ethane-2,1-diyl))bis(oxy))bis(propan-1-amine) for Ce6-dipolyethylene glycol (diPEG)-curcumin, were studied for regulation of UVB-induced photoaging on human skin fibroblast (Hs68) and mouse embryonic fibroblast (BALB/c 3T3) cells. We assessed the antiphotoaging effects of Ce6-curcumin derivatives on cell viability, antioxidant activity, the mechanism of matrix metalloproteinase-1 and 2 (MMP-2) expression, and collagen synthesis in UVB-irradiated in vitro models. All three Ce6-curcumin derivatives were found to be non-phototoxic in the neutral red uptake phototoxicity test. We found that Ce6-hexane-curcumin-PDT and Ce6-propane-curcumin-associated PDT exhibited less cytotoxicity in Hs68 and BALB/c 3T3 fibroblast cell lines compared to Ce6-diPEG-curcumin-PDT. Ce6-diPEG-curcumin and Ce6-propane-curcumin-associated PDT showed superior antioxidant activity in Hs68 cell lines. Further, in UVB-irradiated in vitro models, the Ce6-diPEG-curcumin-PDT greatly attenuated the expression levels of MMP-1 and MMP-2 by blocking mitogen-activated protein kinases (MAPKs), activator protein 1 (AP-1), and tumor necrosis factor-α (NF-κB) signaling. Moreover, Ce6-diPEG-curcumin effectively inhibited inflammatory molecules, such as cyclooxygenase-2 (COX-2) and inducible nitric oxide synthase (iNOS) expression, while accelerating collagen synthesis. These results demonstrate that Ce6-diPEG-curcumin may be a potential therapy for treating skin photoaging.
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Affiliation(s)
| | | | | | | | | | | | - Yong-Wan Kim
- Dongsung Cancer Center, Dongsung Biopharmaceutical, Daegu 41061, Republic of Korea
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Wang L, Jayawardena TU, Kim YS, Wang K, Fu X, Ahn G, Cha SH, Kim JG, Lee JS, Jeon YJ. Anti-Melanogenesis and Anti-Photoaging Effects of the Sulfated Polysaccharides Isolated from the Brown Seaweed Padina boryana. Polymers (Basel) 2023; 15:3382. [PMID: 37631439 PMCID: PMC10459840 DOI: 10.3390/polym15163382] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 08/05/2023] [Accepted: 08/09/2023] [Indexed: 08/27/2023] Open
Abstract
Sulfated polysaccharides isolated from seaweeds are thought of as ideal ingredients in the pharmaceutical, nutraceutical, and cosmetics industries. Our previous study isolated and characterized sulfated polysaccharides from Padina boryana. The sulfated polysaccharides of Padina boryana (PBP) were extracted, and the antioxidant activity of PBP was evaluated. The results indicate that PBP possesses antioxidant effects and potential in the cosmetic industry. To further investigate the potential of PBP in cosmetics, the photoprotective and anti-melanogenesis effects of PBP were evaluated. The anti-melanogenesis test results display that PBP reduced the melanin content in the murine melanoma cells stimulated by alpha melanocyte-stimulating hormone from 203.7% to 183.64%, 144.63%, and 127.57% at concentrations of 25 μg/mL, 50 μg/mL, and 100 μg/mL, respectively. The anti-photodamage test results showed that PBP significantly protected skin cells against UVB-stimulated photodamage. PBP suppressed human epidermal keratinocyte (HaCaT cell) death by inhibiting apoptosis and reducing the level of intracellular reactive oxygen species. The intracellular reactive oxygen species level of HaCaT cells irradiated by UVB was reduced from 192.67% to 181.22%, 170.25%, and 160.48% by 25 μg/mL, 50 μg/mL, and 100 μg/mL PBP, respectively. In addition, PBP remarkably reduced UVB-induced human dermal fibroblast damage by suppressing oxidative damage, inhibiting collagen degradation, and attenuating inflammatory responses. These results indicate that PBP possesses photoprotective and anti-melanogenesis activities and suggest that PBP is a potential ingredient in the cosmetic industry.
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Affiliation(s)
- Lei Wang
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China
| | - Thilina U. Jayawardena
- Department of Chemistry, Biochemistry and Physics, Université du Québec à Trois-Rivières, Trois-Rivières, QC G8Z 4M3, Canada;
- Department of Marine Life Sciences, Jeju National University, Jeju 63243, Republic of Korea
| | - Young-Sang Kim
- Department of Marine Life Sciences, Jeju National University, Jeju 63243, Republic of Korea
| | - Kaiqiang Wang
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China
| | - Xiaoting Fu
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China
| | - Ginnae Ahn
- Department of Marine Bio Food Science, Chonnam National University, Yeosu, 59626, Republic of Korea
| | - Seon-Heui Cha
- Department of Marine Bio and Medical Science, Hanseo Universirty, Seosan-si 32158, Republic of Korea
| | - Jeong Gyun Kim
- Department of Seafood Science & Technology, Institute of Marine Industry, Gyeongsang National University, Tongyeong 53064, Republic of Korea; (J.G.K.); (J.S.L.)
| | - Jung Suck Lee
- Department of Seafood Science & Technology, Institute of Marine Industry, Gyeongsang National University, Tongyeong 53064, Republic of Korea; (J.G.K.); (J.S.L.)
| | - You-Jin Jeon
- Department of Marine Life Sciences, Jeju National University, Jeju 63243, Republic of Korea
- Marine Science Institute, Jeju National University, Jeju 63333, Republic of Korea
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Javed A, Alam MB, Naznin M, Shafique I, Kim S, Lee SH. Tyrosinase inhibitory activity of Sargassum fusiforme and characterisation of bioactive compounds. PHYTOCHEMICAL ANALYSIS : PCA 2023. [PMID: 37183174 DOI: 10.1002/pca.3233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 04/12/2023] [Accepted: 04/17/2023] [Indexed: 05/16/2023]
Abstract
INTRODUCTION Sargassum fusiforme (Harvey) Setchell, also known as Tot (in Korean) and Hijiki (in Japanese), is widely consumed in Korea, Japan, and China due to its health promoting properties. However, the bioactive component behind the biological activity is still unknown. OBJECTIVES We aimed to optimise the extraction conditions for achieving maximum tyrosinase inhibition activity by using two sophisticated statistical tools, that is, response surface methodology (RSM) and artificial neural network (ANN). Moreover, high-resolution mass spectrometry (HRMS) was used to tentatively identify the components, which are then further studied for molecular docking study using 2Y9X protein. METHODOLOGY RSM central composite design was used to conduct extraction using microwave equipment, which was then compared to ANN. Electrospray ionisation tandem mass spectrometry (ESI-MS/MS) was used to tentatively identify bioactive components, which were then docked to the 2Y9X protein using AutoDock Vina and MolDock software. RESULTS Maximum tyrosinase inhibition activity of 79.530% was achieved under optimised conditions of time: 3.27 min, temperature: 128.885°C, ethanol concentration: 42.13%, and microwave intensity: 577.84 W. Furthermore, 48 bioactive compounds were tentatively identified in optimised Sargassum fusiforme (OSF) extract, and among them, seven phenolics, five flavonoids, five lignans, six terpenes, and five sulfolipids and phospholipids were putatively reported for the first time in Sargassum fusiforme. Among 48 bioactive components, trifuhalol-A, diphlorethohydroxycarmalol, glycyrrhizin, and arctigenin exhibited higher binding energies for 2Y9X. CONCLUSION Taken together, these findings suggest that OSF extract can be used as an effective skin-whitening source on a commercial level and could be used in topical formulations by replacing conventional drugs.
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Affiliation(s)
- Ahsan Javed
- Department of Food Science and Biotechnology, Graduate School, Kyungpook National University, Daegu, Korea
| | - Md Badrul Alam
- Department of Food Science and Biotechnology, Graduate School, Kyungpook National University, Daegu, Korea
- Food and Bio-Industry Research Institute, Inner Beauty/Antiaging Centre, Kyungpook National University, Daegu, Korea
| | - Marufa Naznin
- Department of Chemistry, Kyungpook National University, Daegu, Korea
| | - Imran Shafique
- Department of Chemistry, Kyungpook National University, Daegu, Korea
| | - Sunghwan Kim
- Department of Chemistry, Kyungpook National University, Daegu, Korea
- Mass Spectroscopy Converging Research Centre, Green Nano Materials Research Centre, Kyungpook National University, Daegu, Korea
| | - Sang-Han Lee
- Department of Food Science and Biotechnology, Graduate School, Kyungpook National University, Daegu, Korea
- Food and Bio-Industry Research Institute, Inner Beauty/Antiaging Centre, Kyungpook National University, Daegu, Korea
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Tao X, Hu X, Wu T, Zhou D, Yang D, Li X, Fu Y, Zheng F, Yue H, Dai Y. Characterization and screening of anti-melanogenesis and anti-photoaging activity of different enzyme-assisted polysaccharide extracts from Portulaca oleracea L. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2023; 116:154879. [PMID: 37229889 DOI: 10.1016/j.phymed.2023.154879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 05/05/2023] [Accepted: 05/12/2023] [Indexed: 05/27/2023]
Abstract
BACKGROUND The flavonoids and polysaccharides in Portulaca oleracea L. (PO) have significant antibacterial and antioxidant effects, which can inhibit common bacteria and remove free radicals in the body. However, there was little research on the use of PO to alleviate hyperpigmentation and photoaging damage. PURPOSE This study was to investigate the anti-photoaging and whitening activity mechanism of polysaccharide of PO (POP) in vitro and in vivo. METHOD In this study, 16 fractions obtained by four enzyme-assisted extraction from PO and their scavenging capabilities against 2,2-diphenyl-1-picrylhydrazyl and hydroxyl radicals were evaluated. Among these fractions, a polysaccharide fraction (VPOP3) showed the strongest biological activity. VPOP3 was characterized by Fourier-transform infrared spectroscopy, molecular weight (MW), and monosaccharide composition analysis, and the protective effect of VPOP3 on photoaging and hyperpigmentation was researched. RESULTS VPOP3 is a low-MW acidic heteropolysaccharide with MW mainly distributed around 0.71KDa, arabinose as its main monosaccharide component. VPOP3 reliably reduced the reactive oxygen species levels in cells and zebrafish and the level of lipid peroxidation in zebrafish. In addition, VPOP3 inhibited UVB-induced apoptotic body formation and apoptosis by downregulating caspase-3 and Bax and upregulating Bcl-2 in mitochondrion-mediated signaling pathways. On the other hand, VPOP3 at high concentrations significantly downregulated the expression of microphthalmia-associated transcription factor, tyrosinase (TYR), and TYR-related protein-1 and TYR-related protein-2 in the melanogenic signaling pathway to achieve a whitening effect. CONCLUSION The above results showed that VPOP3 has superior activities of anti-photoaging and anti-melanogenesis and can be utilized as a safe resource in the manufacture of cosmetics.
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Affiliation(s)
- Xingyu Tao
- Jilin Ginseng Academy, Key Laboratory of Active Substances and Biological Mechanisms of Ginseng Efficacy, Ministry of Education, Changchun University of Chinese Medicine, Changchun 130117, China
| | - Xuan Hu
- Jilin Ginseng Academy, Key Laboratory of Active Substances and Biological Mechanisms of Ginseng Efficacy, Ministry of Education, Changchun University of Chinese Medicine, Changchun 130117, China
| | - Tongchuan Wu
- Jilin Ginseng Academy, Key Laboratory of Active Substances and Biological Mechanisms of Ginseng Efficacy, Ministry of Education, Changchun University of Chinese Medicine, Changchun 130117, China
| | - Dongyue Zhou
- Jilin Ginseng Academy, Key Laboratory of Active Substances and Biological Mechanisms of Ginseng Efficacy, Ministry of Education, Changchun University of Chinese Medicine, Changchun 130117, China
| | - Di Yang
- Jilin Ginseng Academy, Key Laboratory of Active Substances and Biological Mechanisms of Ginseng Efficacy, Ministry of Education, Changchun University of Chinese Medicine, Changchun 130117, China
| | - Xue Li
- Jilin Ginseng Academy, Key Laboratory of Active Substances and Biological Mechanisms of Ginseng Efficacy, Ministry of Education, Changchun University of Chinese Medicine, Changchun 130117, China
| | - Yunhua Fu
- Jilin Ginseng Academy, Key Laboratory of Active Substances and Biological Mechanisms of Ginseng Efficacy, Ministry of Education, Changchun University of Chinese Medicine, Changchun 130117, China
| | - Fei Zheng
- Jilin Ginseng Academy, Key Laboratory of Active Substances and Biological Mechanisms of Ginseng Efficacy, Ministry of Education, Changchun University of Chinese Medicine, Changchun 130117, China
| | - Hao Yue
- Jilin Ginseng Academy, Key Laboratory of Active Substances and Biological Mechanisms of Ginseng Efficacy, Ministry of Education, Changchun University of Chinese Medicine, Changchun 130117, China.
| | - Yulin Dai
- Jilin Ginseng Academy, Key Laboratory of Active Substances and Biological Mechanisms of Ginseng Efficacy, Ministry of Education, Changchun University of Chinese Medicine, Changchun 130117, China.
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Dini I. The Potential of Algae in the Nutricosmetic Sector. Molecules 2023; 28:molecules28104032. [PMID: 37241773 DOI: 10.3390/molecules28104032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 05/05/2023] [Accepted: 05/09/2023] [Indexed: 05/28/2023] Open
Abstract
Seaweeds or algae are marine autotrophic organisms. They produce nutrients (e.g., proteins, carbohydrates, etc.) essential for the survival of living organisms as they participate in biochemical processes and non-nutritive molecules (such as dietary fibers and secondary metabolites), which can improve their physiological functions. Seaweed polysaccharides, fatty acids, peptides, terpenoids, pigments, and polyphenols have biological properties that can be used to develop food supplements and nutricosmetic products as they can act as antibacterial, antiviral, antioxidant, and anti-inflammatory compounds. This review examines the (primary and secondary) metabolites produced by algae, the most recent evidence of their effect on human health conditions, with particular attention to what concerns the skin and hair's well-being. It also evaluates the industrial potential of recovering these metabolites from biomass produced by algae used to clean wastewater. The results demonstrate that algae can be considered a natural source of bioactive molecules for well-being formulations. The primary and secondary metabolites' upcycling can be an exciting opportunity to safeguard the planet (promoting a circular economy) and, at the same time, obtain low-cost bioactive molecules for the food, cosmetic, and pharmaceutical industries from low-cost, raw, and renewable materials. Today's lack of methodologies for recovering bioactive molecules in large-scale processes limits practical realization.
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Affiliation(s)
- Irene Dini
- Department of Pharmacy, University of Naples Federico II, Via Domenico Montesano 49, 80131 Napoli, Italy
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Qian H, Shan Y, Gong R, Lin D, Zhang M, Wang C, Wang L. Mechanism of action and therapeutic effects of oxidative stress and stem cell-based materials in skin aging: Current evidence and future perspectives. Front Bioeng Biotechnol 2023; 10:1082403. [PMID: 36698629 PMCID: PMC9868183 DOI: 10.3389/fbioe.2022.1082403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Accepted: 12/23/2022] [Indexed: 01/11/2023] Open
Abstract
Aging is associated with multiple degenerative diseases, including atherosclerosis, osteoporosis, and Alzheimer's disease. As the most intuitive manifestation of aging, skin aging has received the most significant attention. Skin aging results from various intrinsic and extrinsic factors. Aged skin is characterized by wrinkles, laxity, elastosis, telangiectasia, and aberrant pigmentation. The underlying mechanism is complex and may involve cellular senescence, DNA damage, oxidative stress (OS), inflammation, and genetic mutations, among other factors. Among them, OS plays an important role in skin aging, and multiple antioxidants (e.g., vitamin C, glutathione, and melatonin) are considered to promote skin rejuvenation. In addition, stem cells that exhibit self-replication, multi-directional differentiation, and a strong paracrine function can exert anti-aging effects by inhibiting OS. With the further development of stem cell technology, treatments related to OS mitigation and involving stem cell use may have a promising future in anti-skin aging therapy.
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Affiliation(s)
- Huan Qian
- Department of Plastic Surgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China,*Correspondence: Huan Qian, ; Lu Wang,
| | - Yihan Shan
- Wenzhou Medical University, Wenzhou, China
| | | | - Danfeng Lin
- Department of Breast Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Mengwen Zhang
- Department of Plastic Surgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Chen Wang
- Department of Plastic Surgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Lu Wang
- Starbody plastic surgery Clinic, Hangzhou, China,*Correspondence: Huan Qian, ; Lu Wang,
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Fu W, Liao X, Zhang Q, Zhu Y, Mei S, Li Q, Zhou X, Li X, Luo H, Ye H, Wu K. Anti-melanogenesis effect from Wampee fruit pectin via α-MSH/TRY pathway in A375 cells. BMC Complement Med Ther 2022; 22:174. [PMID: 35752787 PMCID: PMC9233800 DOI: 10.1186/s12906-022-03646-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Accepted: 06/08/2022] [Indexed: 12/04/2022] Open
Abstract
Background Polysaccharides from wampee have been reported to process various biological activities, while the relationship between structure and bioactivities has been barely addressed. Pectin, an abundant water-soluble polysaccharide in wampee, showed significant antioxidant activity, which was associated with the anti-melanogenic activity. Therefore, this study investigated the physicochemical characteristics and the anti-melanogenesis effect of pectin extracted from wampee fruit in A375 cells. Methods The physicochemical characterization of pectin from wampee fruit was investigated by gel chromatography (GCP), FT-IR spectroscopy, and NMR spectroscopy methods. The anti-melanogenesis effects and mechanism were evaluated by mushroom tyrosine enzyme and human melanin cell model in vitro. Results The results showed that a molecular weight of 5.271 × 105 Da wampee fruit pectin (WFP) were mainly composed of mannose (Man), ribose (Rib), rhamnose (Rha), glucuronic acid (Glc A), glucose (Glc), galacturonic acid (Gal A), galactose (Gal), and arabinose (Ara), which linked with →4)-β-D-Galp-(1 → units. The current study revealed that WFP could significantly suppress mushroom TRY activity in vitro. Furtherly, WFP significantly reduced intracellular and extracellular melanin formation in A375 melanoma cells depending on the presence of alpha-melanocyte stimulating hormone (α-MSH). TRY activity was only inhibited in α-MSH treated A375 cells. Western blot analysis demonstrated that WFP reverse α-MSH induced melanogenesis in A375 melanoma cells, including in down-regulated TRY, TYRP-1, TYRP-2, MITF and CREB expressions. Conclusion These results indicated that WFP could inhibit α-MSH induced melanogenesis in A375 melanoma cells via α-MSH/TRY pathway. In conclusion, these data provided a new perspective to annotate WFP anti-melanogenesis activity mechanism.
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Bioassay-Guided Characterization, Antioxidant, Anti-Melanogenic and Anti-Photoaging Activities of Pueraria thunbergiana L. Leaf Extracts in Human Epidermal Keratinocytes (HaCaT) Cells. Processes (Basel) 2022. [DOI: 10.3390/pr10102156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Although the roots and flowers of P. thunbergiana are known to have various physiologically active effects, studies on the anti-melanin production and anti-photoaging effects of its leaf extracts and cellular mechanisms are still lacking. In this study, we evaluated the possibility of using Pueraria thunbergiana leaves as a natural material for skin whitening and anti-aging-related functional cosmetics. The 30% ethyl alcohol (EtOH) extract from P. thunbergiana leaves was fractionated using n-hexane, ethyl acetate (EtOAc), butanol, and aqueous solution to measure their whitening, and anti-aging effects. The EtOAc fraction contained a high content of phenolic and flavonoids and showed higher 1,1-diphenyl-2-picryhydrazyl (DPPH) and 2,2-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt (ABTS) radical scavenging activities than the other fractions. It was also confirmed that the EtOAc fraction markedly inhibited α-melanocyte stimulating hormone (α-MSH)-induced melanogenesis in B16F10 melanoma cells. In addition, the EtOAc fraction showed a protective effect against ultraviolet B (UVB) in HaCaT cells and increased the collagen synthesis that was decreased due to UVB exposure. Matrix metalloproteinase-1 (MMP-1) activity and MMP-1 protein expression were reduced in human epidermal keratinocytes (HaCaT) cells. These results indicate that the EtOAc fraction has superior antioxidant activity, anti-melanogenesis, and anti-photoaging effects compared to the other fractions. Therefore, in this study, we confirmed the potential of P. thunbergiana leaf extract as a functional cosmetic ingredient, and it can be used as basic data for the physiological activity of P. thunbergiana leaf extracts.
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Application of Carrageenan extract from red seaweed (Rhodophyta) in cosmetic products: A review. J INDIAN CHEM SOC 2022. [DOI: 10.1016/j.jics.2022.100613] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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Lee MK, Ryu H, Lee JY, Jeong HH, Baek J, Van JY, Kim MJ, Jung WK, Lee B. Potential Beneficial Effects of Sargassum spp. in Skin Aging. Mar Drugs 2022; 20:540. [PMID: 36005543 PMCID: PMC9410049 DOI: 10.3390/md20080540] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 08/10/2022] [Accepted: 08/18/2022] [Indexed: 11/21/2022] Open
Abstract
Seaweeds are receiving much attention as a rich source of bioactive compounds with cosmeceutical potential. Recent studies have revealed that Sargassum spp., a genus of brown algae in the family Sargassaceae, has multiple functions in preventing and improving skin aging. Sargassum spp. contains many bioactive compounds, such as fucoidan, fucoxanthin, terpenoids, flavonoids, and meroterpenoids. These Sargassum spp. extracts and derivative compounds have excellent potential for skincare, as they exhibit skin health-promoting properties, including antioxidants, anti-inflammation, whitening, skin barrier repair, and moisturizing. Therefore, searching for bioactive compounds in marine resources such as Sargassum spp. could be an attractive approach to preventing and improving skin aging. The current review focused on the various biological abilities of Sargassum extracts or derived compounds for anti-skin aging.
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Affiliation(s)
- Min-Kyeong Lee
- Department of Food Science and Nutrition, Pukyong National University, Daeyeon-dong, Nam-gu, Busan 48513, Korea
| | - Heeyeon Ryu
- Department of Food Science and Nutrition, Pukyong National University, Daeyeon-dong, Nam-gu, Busan 48513, Korea
| | - Ji Yun Lee
- Department of Food Science and Nutrition, Pukyong National University, Daeyeon-dong, Nam-gu, Busan 48513, Korea
| | - Hyeon Hak Jeong
- Department of Food Science and Nutrition, Pukyong National University, Daeyeon-dong, Nam-gu, Busan 48513, Korea
| | - Jiwon Baek
- Department of Food Science and Nutrition, Pukyong National University, Daeyeon-dong, Nam-gu, Busan 48513, Korea
| | - Ji Yun Van
- Department of Food Science and Nutrition, Pukyong National University, Daeyeon-dong, Nam-gu, Busan 48513, Korea
| | - Myeong-Jin Kim
- Department of Food Science and Nutrition, Pukyong National University, Daeyeon-dong, Nam-gu, Busan 48513, Korea
| | - Won-Kyo Jung
- Division of Biomedical Engineering and Research Center for Marine Integrated Bionics Technology, Pukyong National University, Daeyeon-dong, Nam-gu, Busan 48513, Korea
| | - Bonggi Lee
- Department of Food Science and Nutrition, Pukyong National University, Daeyeon-dong, Nam-gu, Busan 48513, Korea
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Liu Y, Liu Y, Deng J, Wu X, He W, Mu X, Nie X. Molecular mechanisms of Marine-Derived Natural Compounds as photoprotective strategies. Int Immunopharmacol 2022; 111:109174. [PMID: 35998505 DOI: 10.1016/j.intimp.2022.109174] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Revised: 08/02/2022] [Accepted: 08/14/2022] [Indexed: 11/16/2022]
Abstract
Excessive exposure of the skin to ultraviolet radiation (UVR) causes oxidative stress, inflammation, immunosuppression, apoptosis, and changes in the extracellular matrix, which lead to the development of photoaging and photodamage of skin. At the molecular level, these pathological changes are mainly caused by the activation of related protein kinases and downstream transcription pathways, the increase of matrix metalloproteinase, the formation of reactive oxygen species, and the combined action of cytokines and inflammatory mediators. At present, the photostability, toxicity, and damage to marine ecosystems of most sun protection products in the market have affected their efficacy and safety. Another way is to use natural products produced by various marine species. Marine organisms have evolved a variety of molecular strategies to protect themselves from the harmful effects of ultraviolet radiation, and their unique chemicals have attracted more and more attention in the research of photoprotection and photoaging resistance. This article provides an extensive description of the recent literature on the potential of Marine-Derived Natural Compounds (MDNCs) as photoprotective and photoprotective agents. It reviews the positive effects of MDNCs in counteracting UV-induced oxidative stress, inflammation, DNA damage, apoptosis, immunosuppression, and extracellular matrix degradation. Some MDNCs have the potential to develop feasible solutions for related phenomena, such as photoaging and photodamage caused by UVR.
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Affiliation(s)
- Yiqiu Liu
- Key Lab of the Basic Pharmacology of the Ministry of Education, Zunyi Medical University, Zunyi 563006, China
| | - Ye Liu
- Key Lab of the Basic Pharmacology of the Ministry of Education, Zunyi Medical University, Zunyi 563006, China
| | - Junyu Deng
- Key Lab of the Basic Pharmacology of the Ministry of Education, Zunyi Medical University, Zunyi 563006, China
| | - Xingqian Wu
- Key Lab of the Basic Pharmacology of the Ministry of Education, Zunyi Medical University, Zunyi 563006, China; Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi 563006, China
| | - Wenjie He
- Key Lab of the Basic Pharmacology of the Ministry of Education, Zunyi Medical University, Zunyi 563006, China; Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi 563006, China
| | - Xingrui Mu
- Key Lab of the Basic Pharmacology of the Ministry of Education, Zunyi Medical University, Zunyi 563006, China; Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi 563006, China
| | - Xuqiang Nie
- Key Lab of the Basic Pharmacology of the Ministry of Education, Zunyi Medical University, Zunyi 563006, China; Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi 563006, China; College of Pharmacy, Zunyi Medical University, Zunyi 563006, China.
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13
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Structural characteristics of native and chemically sulfated polysaccharides from seaweed and their antimelanoma effects. Carbohydr Polym 2022; 289:119436. [DOI: 10.1016/j.carbpol.2022.119436] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 03/27/2022] [Accepted: 03/29/2022] [Indexed: 12/24/2022]
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14
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Hu J, Yao W, Chang S, You L, Zhao M, Chi-Keung Cheung P, Hileuskaya K. Structural characterization and anti-photoaging activity of a polysaccharide from Sargassum fusiforme. Food Res Int 2022; 157:111267. [PMID: 35761578 DOI: 10.1016/j.foodres.2022.111267] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 04/15/2022] [Accepted: 04/17/2022] [Indexed: 12/11/2022]
Abstract
In this study, a purified algal polysaccharide (P1) was isolated from Sargassum fusiforme and its structural characteristics and anti-photoaging activity were studied. Results showed that P1 had a molecular weight of 289 kDa and was mainly composed of mannuronic acid, guluronic acid and fucose with molar ratio of 7.67:2.35:1.00. The backbone of P1 was →4)-β-ManA-(1→4)-α-GulA-(1→4)-β-ManA-(1→4)-β-ManA-(1→4)-α-GulA-(1→4)-β-ManA-(1→3,4)-β-ManA-(1→ with a terminal group of α-Fucp-(1→ linked to O-3 position of →3,4)-β-ManA-(1→. In addition, P1 could inhibit the expressions of MMPs (MMP-1, MMP-3 and MMP-9) in the UVB-irradiated HaCaT cells, indicating that P1 could reduce collagen loss caused by UVB irradiation. It also reduced the contents of ROS and inflammatory factors (TNF-α, IL-6 and IL-1β), indicating that P1 could reduce the oxidative stress and inflammation response. Thus, Sargassum fusiforme polysaccharide P1 could be used as a potential functional food to relieve skin photoaging.
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Affiliation(s)
- Jinhong Hu
- School of Food Science and Engineering, South China University of Technology, Guangzhou, Guangdong 510640, People's Republic of China; Research Institute for Food Nutrition and Human Health (111 Center), Guangzhou, Guangdong 510640, People's Republic of China
| | - Wanzi Yao
- School of Food Science and Engineering, South China University of Technology, Guangzhou, Guangdong 510640, People's Republic of China; Research Institute for Food Nutrition and Human Health (111 Center), Guangzhou, Guangdong 510640, People's Republic of China
| | - Shiyuan Chang
- School of Food Science and Engineering, South China University of Technology, Guangzhou, Guangdong 510640, People's Republic of China; Research Institute for Food Nutrition and Human Health (111 Center), Guangzhou, Guangdong 510640, People's Republic of China
| | - Lijun You
- School of Food Science and Engineering, South China University of Technology, Guangzhou, Guangdong 510640, People's Republic of China; Research Institute for Food Nutrition and Human Health (111 Center), Guangzhou, Guangdong 510640, People's Republic of China.
| | - Mouming Zhao
- School of Food Science and Engineering, South China University of Technology, Guangzhou, Guangdong 510640, People's Republic of China; Research Institute for Food Nutrition and Human Health (111 Center), Guangzhou, Guangdong 510640, People's Republic of China
| | - Peter Chi-Keung Cheung
- Food & Nutritional Sciences Program, School of Life Sciences, Chinese University of Hong Kong, Hong Kong 999077, People's Republic of China
| | - Kseniya Hileuskaya
- Institute of Chemistry of New Materials, National Academy of Sciences of Belarus, Skaryna str., Minsk 220141, Belarus
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Abstract
Marine-derived natural products are rich source of secondary metabolites with huge potentials including novel therapeutic agents. Marine algae are considered to be a good source of secondary metabolites with versatile bioactivities. During the last few decades, researches related to natural products obtained from brown algae have remarkably escalated as they contain active compounds with varied biologically activities like antimicrobial, anticancer, antioxidant, anti-inflammatory, antidiabetic, and antiparasitic properties. The main bioactive components such as phlorotannin, fucoxanthin, alginic acid, fucoidan, and laminarin have been briefly discussed here, together with their composition and biological activities. In this review, the biological function of extracts and the metabolites of brown algae as well as their pharmacological impacts with the description of the possible mechanism of their action are described and discussed. Also, this study is expected to examine the multifunctional properties of brown algae that facilitate natural algal products, including the ability to integrate these functional properties in a variety of applications.
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UVB irradiation differential regulate miRNAs expression in skin photoaging. An Bras Dermatol 2022; 97:458-466. [PMID: 35660030 PMCID: PMC9263642 DOI: 10.1016/j.abd.2022.01.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 01/13/2022] [Accepted: 01/18/2022] [Indexed: 11/22/2022] Open
Abstract
Background UVB irradiation can cause acute damage such as sunburn, or photoaging and melanoma, all of which are major health threats. Objective This study was designed to investigate the mechanism of skin photoaging induced by UVB radiation in mice through the analysis of the differential expression of miRNAs. Methods A UVB irradiation photoaging model was constructed. HE and Masson special stains were used to examine the modifications in the epidermis and dermis of mice. The miRNA expression profiles of the mouse skin model exposed to UVB radiation and the normal skin of mice were analyzed using miRNA-sequence analysis. GO and Pathway analysis were employed for the prediction of miRNA targets. Results A total of 23 miRNAs were evaluated for significantly different expressions in comparison to normal skin. Among them, 7 miRNAs were up-regulated and 16 were down-regulated in the skin with photoaging of mice exposed to UVB irradiation. The differential expression of miRNA is related to a variety of signal transduction pathways, among which mmu-miR-195a-5p and mitogen-activated protein kinase (MAPK) signal pathways are crucial. There was a significant differential expression of miRNA in the skin of normal mice in comparison with the skin with photoaging induced by UVB irradiation. Study limitations Due to time and energy constraints, the specific protein level verification, MAPK pathway exploration, and miR-195a-5p downstream molecular mechanism need to be further studied in the future. Conclusions UVB-induced skin photoaging can be diagnosed and treated using miRNA.
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Salehi M, Piri H, Farasat A, Pakbin B, Gheibi N. Activation of apoptosis and G0/G1 cell cycle arrest along with inhibition of melanogenesis by humic acid and fulvic acid: BAX/BCL-2 and Tyr genes expression and evaluation of nanomechanical properties in A375 human melanoma cell line. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES 2022; 25:489-496. [PMID: 35656077 PMCID: PMC9150800 DOI: 10.22038/ijbms.2022.60651.13444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Accepted: 04/18/2022] [Indexed: 11/06/2022]
Abstract
Objectives Humic acid (HA) and Fulvic acid (FA) are major members of humic substances, which are extracted from organic sources including soil and peat. The pro-apoptotic and anti-melanogenic effects of HA and FA at the cellular and molecular levels in the A375 human melanoma cell line were examined in this study. Materials and Methods The cytotoxicity effect of HA and FA were evaluated by cell viability assay. Apoptosis and cell cycle were investigated by flow cytometry. Real-time PCR was carried out to measure the expression of BAX, BCL-2, and Tyr genes. Moreover, the changes in nanomechanical properties were determined through atomic force microscopy (AFM). Results It was found that HA and FA decrease cell viability with an IC50 value of 50 µg/ml (dose-dependent) for 14 hr, arrested cells in the G0/G1 phase, and increased the sub-G1 phase (induce apoptosis). Based on the AFM analysis, Young's modulus and adhesion force values were increased, also ultrastructural characteristics of cells were changed. Results of Real-time PCR revealed that HA and FA lead to a decrease in the expressions of BCL-2 and Tyr genes, and increase the BAX gene expression. Conclusion These results exhibited that HA and FA possess pro-apoptotic effects through increasing the BAX/ BCL-2 expression in A375 cells. These molecular reports were confirmed by cellular nanomechanical assessments using AFM and flow cytometry. In addition, HA and FA inhibited melanogenesis by decreasing the expression of the Tyr gene. It is worthwhile to note that, HA and FA can be regarded to design new anti-cancer and anti-melanogenesis products.
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Affiliation(s)
- Mitra Salehi
- Student Research Committee, Qazvin University of Medical Sciences, Qazvin, Iran
| | - Hossein Piri
- Department of Biochemistry and Genetics, School of Medicine, Qazvin University of Medical Sciences, Qazvin, Iran,Cellular and Molecular Research Center, Research Institute for Prevention of Non-Communicable Diseases, Qazvin University of Medical Sciences, Qazvin, Iran,Corresponding authors: Hossein Piri. Department of Biochemistry and Genetics, School of Medicine, Qazvin University of Medical Sciences, Qazvin, Iran; Cellular and Molecular Research Center, Research Institute for Prevention of Non-Communicable Diseases, Qazvin University of Medical Sciences, Qazvin, Iran. ; Nematollah Gheibi. Cellular and Molecular Research Center, Research Institute for Prevention of Non-Communicable Diseases, Qazvin University of Medical Sciences, Qazvin, Iran. Tel: +98-2813330534; Fax: +98-2813324970; ;
| | - Alireza Farasat
- Cellular and Molecular Research Center, Research Institute for Prevention of Non-Communicable Diseases, Qazvin University of Medical Sciences, Qazvin, Iran
| | - Babak Pakbin
- Medical Microbiology Research Center, Qazvin University of Medical Sciences, Qazvin, Iran
| | - Nematollah Gheibi
- Cellular and Molecular Research Center, Research Institute for Prevention of Non-Communicable Diseases, Qazvin University of Medical Sciences, Qazvin, Iran,Corresponding authors: Hossein Piri. Department of Biochemistry and Genetics, School of Medicine, Qazvin University of Medical Sciences, Qazvin, Iran; Cellular and Molecular Research Center, Research Institute for Prevention of Non-Communicable Diseases, Qazvin University of Medical Sciences, Qazvin, Iran. ; Nematollah Gheibi. Cellular and Molecular Research Center, Research Institute for Prevention of Non-Communicable Diseases, Qazvin University of Medical Sciences, Qazvin, Iran. Tel: +98-2813330534; Fax: +98-2813324970; ;
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Lin ET, Lee YC, Wang HMD, Chiu CY, Chang YK, Huang CY, Chang CC, Tsai PC, Chang JS. Efficient fucoidan extraction and purification from Sargassum cristaefolium and preclinical dermal biological activity assessments of the purified fucoidans. J Taiwan Inst Chem Eng 2022. [DOI: 10.1016/j.jtice.2022.104294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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19
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Kim MJ, Mohamed EA, Kim DS, Park MJ, Ahn BJ, Jeung EB, An BS. Inhibitory effects and underlying mechanisms of Artemisia capillaris essential oil on melanogenesis in the B16F10 cell line. Mol Med Rep 2022; 25:113. [PMID: 35137924 PMCID: PMC8845066 DOI: 10.3892/mmr.2022.12629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Accepted: 01/11/2022] [Indexed: 11/28/2022] Open
Abstract
The present study investigated the anti-melanogenic activity of 10 essential oils using the B16F10 cell model. Initially, a wide range of concentrations of these essential oils were screened in order to determine their toxicity levels. The assigned non-toxic concentrations of the tested essential oils were then used to evaluate their effects on melanogenesis. The effects of the essential oils with potent anti-melanogenic activity on cell proliferation, protection against H2O2-induced cell death and the expression of certain melanogenesis-related genes, including MITF, tyrosinase, tyrosinase related protein (TRP)-1 and TRP-2 were also evaluated. The results revealed that the essential oils extracted from Citrus unshiu, Juniperus chinensis L., Zanthoxylum piperitum and Artemisia capillaris (A. capillaris) inhibited melanogenesis. However, among these four extracts, only A. capillaris extract enhanced cell proliferation, exhibited anti-H2O2 activities and decreased the expression level of TRP-1. It was demonstrated that A. capillaris extract inhibited melanin synthesis via the downregulation of the TRP-1 translational level. These essential oil extracts, particularly that of A. capillaris, may thus be used as natural anti-melanogenic agents for therapeutic purposes and in the cosmetic industry for skin whitening effects with beneficial proliferative properties. However, further studies using in vivo models are required to validate these findings and to examine the effects of these extracts on various molecular pathways.
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Affiliation(s)
- Min Jae Kim
- Department of Biomaterials Science (BK21 FOUR Program), College of Natural Resources and Life Science/Life and Industry Convergence Research Institute, Pusan National University, Miryang, Gyeongsangnam‑do 50463, Republic of Korea
| | - Elsayed A Mohamed
- Department of Biomaterials Science (BK21 FOUR Program), College of Natural Resources and Life Science/Life and Industry Convergence Research Institute, Pusan National University, Miryang, Gyeongsangnam‑do 50463, Republic of Korea
| | - Da Som Kim
- Department of Biomaterials Science (BK21 FOUR Program), College of Natural Resources and Life Science/Life and Industry Convergence Research Institute, Pusan National University, Miryang, Gyeongsangnam‑do 50463, Republic of Korea
| | - Mi-Jin Park
- Division of Forest Industrial Materials, Department of Forest Products and Industry, National Institute of Forest Science, Seoul 02455, Republic of Korea
| | - Byoung-Jun Ahn
- Division of Forest Industrial Materials, Department of Forest Products and Industry, National Institute of Forest Science, Seoul 02455, Republic of Korea
| | - Eui-Bae Jeung
- Laboratory of Veterinary Biochemistry and Molecular Biology, College of Veterinary Medicine, Chungbuk National University, Cheongju, Chungbuk 28644, Republic of Korea
| | - Beum-Soo An
- Department of Biomaterials Science (BK21 FOUR Program), College of Natural Resources and Life Science/Life and Industry Convergence Research Institute, Pusan National University, Miryang, Gyeongsangnam‑do 50463, Republic of Korea
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20
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Jayasinghe AMK, Kirindage KGIS, Fernando IPS, Han EJ, Oh GW, Jung WK, Ahn G. Fucoidan Isolated from Sargassum confusum Suppresses Inflammatory Responses and Oxidative Stress in TNF-α/IFN-γ- Stimulated HaCaT Keratinocytes by Activating Nrf2/HO-1 Signaling Pathway. Mar Drugs 2022; 20:117. [PMID: 35200646 PMCID: PMC8880602 DOI: 10.3390/md20020117] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 01/19/2022] [Accepted: 01/27/2022] [Indexed: 02/06/2023] Open
Abstract
Recent studies have revealed that marine brown seaweeds contain numerous bioactive compounds which exhibit various bioactivities. The present study investigated the effect of low molecular weight fucoidan (SCF) isolated from Sargassum confusum, a brown alga, on inflammatory responses and oxidative stress in HaCaT keratinocytes stimulated by tumor necrosis factor (TNF)-α/interferon (IFN)-γ. SCF significantly increased the cell viability while decreasing the intracellular reactive oxygen species (ROS) production in TNF-α/IFN-γ-stimulated HaCaT keratinocytes. In addition, SCF effectively reduced inflammatory cytokines (interleukin (IL)-1β, IL-6, IL-8, IL-13, TNF-α, and IFN-γ) and chemokines (Eotaxin, macrophage-derived chemokine (MDC), regulated on activation, normal T cell expressed and secreted (RANTES), and thymus and activation-regulated chemokine (TARC)) expression, by down-regulating the expression of epithelial and epidermal innate cytokines (IL-25, IL-33, and thymic stromal lymphopoietin (TSLP)). Furthermore, SCF suppressed the activation of TNF-α/IFN-γ-stimulated mitogen-activated protein kinase (MAPK) and nuclear factor-κB (NF-κB) signaling pathways, while activating the nuclear factor erythroid 2-related factor 2 (Nrf2)/heme oxygenase-1 (HO-1) signaling pathway. The cytoprotective effect of SCF against TNF-α/IFN-γ stimulation was considerably reduced upon inhibition of HO-1 activity by ZnPP. Overall, these results suggest that SCF effectively suppressed inflammatory responses and oxidative stress in TNF-α/IFN-γ-stimulated HaCaT keratinocytes via activating the Nrf2/HO-1 signaling pathway.
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Affiliation(s)
| | | | | | - Eui Jeong Han
- Department of Food Technology and Nutrition, Chonnam National University, Yeosu 59626, Korea; (A.M.K.J.); (K.G.I.S.K.); (E.J.H.)
- Research Center for Healthcare and Biomedical Engineering, Chonnam National University, Yeosu 59626, Korea
| | - Gun-Woo Oh
- Department of Biomedical Engineering and Center for Marine-Integrated Biomedical Technology (BK21 Plus), Pukyong National University, 45, Yongso-ro, Nam-gu, Busan 48513, Korea;
| | - Won-Kyo Jung
- Department of Biomedical Engineering and Center for Marine-Integrated Biomedical Technology (BK21 Plus), Pukyong National University, 45, Yongso-ro, Nam-gu, Busan 48513, Korea;
| | - Ginnae Ahn
- Department of Food Technology and Nutrition, Chonnam National University, Yeosu 59626, Korea; (A.M.K.J.); (K.G.I.S.K.); (E.J.H.)
- Department of Marine Bio-Food Sciences, Chonnam National University, Yeosu 59626, Korea;
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Hu Z, Sha X, Zhang L, Huang S, Tu Z. Effect of Grass Carp Scale Collagen Peptide FTGML on cAMP-PI3K/Akt and MAPK Signaling Pathways in B16F10 Melanoma Cells and Correlation between Anti-Melanin and Antioxidant Properties. Foods 2022; 11:foods11030391. [PMID: 35159541 PMCID: PMC8834497 DOI: 10.3390/foods11030391] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 01/12/2022] [Accepted: 01/27/2022] [Indexed: 12/22/2022] Open
Abstract
Peptide Phe-Thr-Gly-Met-Leu (FTGML) is a bioactive oligopeptide with tyrosinase inhibitory activity derived from gelatin hydrolysate of grass carp scales. Previous studies have shown that FTGML addition can effectively inhibit mushroom tyrosinase activity in vitro, and also has some effect on the inhibition of melanogenesis in zebrafish in vivo, but the underlying mechanism is not fully understood. In this study, we used FTGML to treat B16F10 melanoma cells, and found a significant inhibition of tyrosinase activity and melanin synthesis. Interestingly, the treatment showed a strong correlation between antioxidant activity and anti-melanin, which was associated with FTGML reducing the involvement of reactive oxygen species in melanin synthesis. Furthermore, FTGML reduced melanogenesis in B16F10 cells by downregulating the cAMP-PI3K/Akt and MAPK pathways (p38 and JNK). These results suggested that FTGML can reduce melanin production in mouse B16F10 melanoma cells through multiple pathways.
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Affiliation(s)
- Zizi Hu
- National R&D Center for Freshwater Fish Processing, College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China; (Z.H.); (L.Z.)
| | - Xiaomei Sha
- College of Life Science, Jiangxi Normal University, Nanchang 330022, China;
| | - Lu Zhang
- National R&D Center for Freshwater Fish Processing, College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China; (Z.H.); (L.Z.)
| | - Sheng Huang
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China;
| | - Zongcai Tu
- National R&D Center for Freshwater Fish Processing, College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China; (Z.H.); (L.Z.)
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China;
- Correspondence:
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22
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Anti-Phototoxicity Effect of Phenolic Compounds from Acetone Extract of Entada phaseoloides Leaves via Activation of COX-2 and iNOS in Human Epidermal Keratinocytes. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27020440. [PMID: 35056753 PMCID: PMC8781793 DOI: 10.3390/molecules27020440] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 01/05/2022] [Accepted: 01/07/2022] [Indexed: 11/21/2022]
Abstract
The extract from Entada phaseoloides was employed as active ingredients of natural origin into cosmetic products, while the components analysis was barely reported. Using LC-DAD-MS/qTOF analysis, eleven compounds (1–11) were proposed or identified from acetone extract of E. phaseoloides leaves (AE). Among them, six phenolic compounds, protocatechuic acid (2), 4-hydroxybenzoic acid (3), luteolin-7-O-β-d-glucoside (5), cirsimaritin (6), dihydrokaempferol (9), and apigenin (10), were isolated by various chromatographic techniques. Protocatechuic acid (2), epicatechin (4), and kaempferol (11) at a concentration 100 μM increased the HaCaT cells viability of the UVB-irradiated cell without any cytotoxicity effect and reduced the expression of COX-2 and iNOS inflammation gene. Moreover, compounds 2 and 4 could have potent effects on cell migration during wound closure. These results suggest that compounds 2, 4, and 11 from AE have anti-photoaging properties and could be employed in pharmaceutical and cosmeceutical products.
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23
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Choi SI, Han HS, Kim JM, Park G, Jang YP, Shin YK, Ahn HS, Lee SH, Lee KT. Eisenia bicyclis Extract Repairs UVB-Induced Skin Photoaging In Vitro and In Vivo: Photoprotective Effects. Mar Drugs 2021; 19:693. [PMID: 34940692 PMCID: PMC8709268 DOI: 10.3390/md19120693] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 11/26/2021] [Accepted: 12/01/2021] [Indexed: 01/13/2023] Open
Abstract
Chronic exposure to ultraviolet B (UVB) is a major cause of skin aging. The aim of the present study was to determine the photoprotective effect of a 30% ethanol extract of Eisenia bicyclis (Kjellman) Setchell (EEB) against UVB-induced skin aging. By treating human dermal fibroblasts (Hs68) with EEB after UVB irradiation, we found that EEB had a cytoprotective effect. EEB treatment significantly decreased UVB-induced matrix metalloproteinase-1 (MMP-1) production by suppressing the activation of mitogen-activated protein kinase (MAPK)/activator protein 1 (AP-1) signaling and enhancing the protein expression of tissue inhibitors of metalloproteinases (TIMPs). EEB was also found to recover the UVB-induced degradation of pro-collagen by upregulating Smad signaling. Moreover, EEB increased the mRNA expression of filaggrin, involucrin, and loricrin in UVB-irradiated human epidermal keratinocytes (HaCaT). EEB decreased UVB-induced reactive oxygen species (ROS) generation by upregulating glutathione peroxidase 1 (GPx1) and heme oxygenase-1 (HO-1) expression via nuclear factor erythroid-2-related factor 2 (Nrf2) activation in Hs68 cells. In a UVB-induced HR-1 hairless mouse model, the oral administration of EEB mitigated photoaging lesions including wrinkle formation, skin thickness, and skin dryness by downregulating MMP-1 production and upregulating the expression of pro-collagen type I alpha 1 chain (pro-COL1A1). Collectively, our findings revealed that EEB prevents UVB-induced skin damage by regulating MMP-1 and pro-collagen type I production through MAPK/AP-1 and Smad pathways.
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Affiliation(s)
- Se-In Choi
- Department of Pharmaceutical Biochemistry, College of Pharmacy, Kyung Hee University, Seoul 02447, Korea; (S.-I.C.); (H.-S.H.); (J.-M.K.)
- Department of Biomedical and Pharmaceutical Science, Graduate School, Kyung Hee University, Seoul 02447, Korea
| | - Hee-Soo Han
- Department of Pharmaceutical Biochemistry, College of Pharmacy, Kyung Hee University, Seoul 02447, Korea; (S.-I.C.); (H.-S.H.); (J.-M.K.)
- Department of Life and Nanopharmaceutical Sciences, Graduate School, Kyung Hee University, Seoul 02447, Korea; (G.P.); (Y.-P.J.)
| | - Jae-Min Kim
- Department of Pharmaceutical Biochemistry, College of Pharmacy, Kyung Hee University, Seoul 02447, Korea; (S.-I.C.); (H.-S.H.); (J.-M.K.)
- Department of Biomedical and Pharmaceutical Science, Graduate School, Kyung Hee University, Seoul 02447, Korea
| | - Geonha Park
- Department of Life and Nanopharmaceutical Sciences, Graduate School, Kyung Hee University, Seoul 02447, Korea; (G.P.); (Y.-P.J.)
| | - Young-Pyo Jang
- Department of Life and Nanopharmaceutical Sciences, Graduate School, Kyung Hee University, Seoul 02447, Korea; (G.P.); (Y.-P.J.)
- Department of Oriental Pharmaceutical Science, College of Pharmacy, Kyung Hee University, Seoul 02447, Korea
| | - Yu-Kyong Shin
- Department of New Material Development, COSMAXBIO, Seongnam 13486, Korea; (Y.-K.S.); (H.-S.A.); (S.-H.L.)
| | - Hye-Shin Ahn
- Department of New Material Development, COSMAXBIO, Seongnam 13486, Korea; (Y.-K.S.); (H.-S.A.); (S.-H.L.)
| | - Sun-Hee Lee
- Department of New Material Development, COSMAXBIO, Seongnam 13486, Korea; (Y.-K.S.); (H.-S.A.); (S.-H.L.)
| | - Kyung-Tae Lee
- Department of Pharmaceutical Biochemistry, College of Pharmacy, Kyung Hee University, Seoul 02447, Korea; (S.-I.C.); (H.-S.H.); (J.-M.K.)
- Department of Biomedical and Pharmaceutical Science, Graduate School, Kyung Hee University, Seoul 02447, Korea
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Heptapeptide Isolated from Isochrysis zhanjiangensis Exhibited Anti-Photoaging Potential via MAPK/AP-1/MMP Pathway and Anti-Apoptosis in UVB-Irradiated HaCaT Cells. Mar Drugs 2021; 19:md19110626. [PMID: 34822497 PMCID: PMC8625372 DOI: 10.3390/md19110626] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 11/07/2021] [Accepted: 11/07/2021] [Indexed: 01/14/2023] Open
Abstract
Marine microalgae can be used as sustainable protein sources in many fields with positive effects on human and animal health. DAPTMGY is a heptapeptide isolated from Isochrysis zhanjiangensis which is a microalga. In this study, we evaluated its anti-photoaging properties and mechanism of action in human immortalized keratinocytes cells (HaCaT). The results showed that DAPTMGY scavenged reactive oxygen species (ROS) and increase the level of endogenous antioxidants. In addition, through the exploration of its mechanism, it was determined that DAPIMGY exerted anti-photoaging effects. Specifically, the heptapeptide inhibits UVB-induced apoptosis through down-regulation of p53, caspase-8, caspase-3 and Bax and up-regulation of Bcl-2. Thus, DAPTMGY, isolated from I. zhanjiangensis, exhibits protective effects against UVB-induced damage.
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Jing R, Guo K, Zhong Y, Wang L, Zhao J, Gao B, Ye Z, Chen Y, Li X, Xu N, Xuan X. Protective effects of fucoidan purified from Undaria pinnatifida against UV-irradiated skin photoaging. ANNALS OF TRANSLATIONAL MEDICINE 2021; 9:1185. [PMID: 34430626 PMCID: PMC8350689 DOI: 10.21037/atm-21-3668] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Accepted: 07/22/2021] [Indexed: 12/15/2022]
Abstract
Background Exposure to ultraviolet (UV) radiation (UVB and UVA) is the most well-known extrinsic factor that induces skin aging. Fucoidan has been shown to possess antiphotoaging effects against UV irradiation and can be used as an ingredient in the pharmaceutical industry. The present study evaluated the photoprotective effect of fucoidan purified from Undaria pinnatifida (UPF) on UV-induced skin photoaging and explored its potential molecular mechanism. Methods To evaluate the effect of UPF on UV-induced skin aging, HaCaT cells and HFF-1 cells were pretreated with or without UPF and then exposed to UVB and UVA radiation, respectively, and the levels of cellular senescence, reactive oxygen species (ROS) production and mitochondrial dysfunction were evaluated. The mitochondrial ROS (mROS) was stained through MitoSOX, and the confocal microscope was used to capture the images. For further exploration of AMPK/SIRT-1/PGC-1α signaling, western blot was employed. Results The results demonstrated that pretreatment of HaCaT and HFF-1 cells with UPF ameliorated cellular senescence, ROS and mROS overproduction, and mitochondrial dysfunction caused by UV exposure. This research also revealed that UPF could activate the AMPK/SIRT-1/PGC-1α signaling pathway to promote mitochondrial biogenesis. Conclusions UPF can ameliorate UV-induced skin photoaging through inhibition of ROS production via the alleviation of mitochondrial dysfunction by regulating the SIRT-1/PGC-1α signaling pathway.
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Affiliation(s)
- Rongrong Jing
- College of Life and Environmental Sciences, Wenzhou University, Wenzhou, China
| | - Keke Guo
- College of Life and Environmental Sciences, Wenzhou University, Wenzhou, China
| | - Yulan Zhong
- College of Life and Environmental Sciences, Wenzhou University, Wenzhou, China
| | - Lusheng Wang
- College of Life and Environmental Sciences, Wenzhou University, Wenzhou, China
| | - Jungang Zhao
- College of Life and Environmental Sciences, Wenzhou University, Wenzhou, China
| | - Bingyan Gao
- College of Life and Environmental Sciences, Wenzhou University, Wenzhou, China
| | - Ziyi Ye
- College of Life and Environmental Sciences, Wenzhou University, Wenzhou, China
| | - Yu Chen
- College of Life and Environmental Sciences, Wenzhou University, Wenzhou, China
| | - Xuenan Li
- College of Life and Environmental Sciences, Wenzhou University, Wenzhou, China
| | - Nuo Xu
- College of Life and Environmental Sciences, Wenzhou University, Wenzhou, China
| | - Xuan Xuan
- Department of Dermatology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
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Hizikia fusiformis: Pharmacological and Nutritional Properties. Foods 2021; 10:foods10071660. [PMID: 34359532 PMCID: PMC8306711 DOI: 10.3390/foods10071660] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2021] [Revised: 07/13/2021] [Accepted: 07/15/2021] [Indexed: 02/07/2023] Open
Abstract
The brown seaweed Hizikia fusiformis (syn. Sargassum fusiforme), commonly known as “Hijiki”, has been utilized in traditional cuisine and medicine in East Asian countries for several centuries. H. fusiformis has attracted much attention owing to its rich nutritional and pharmacological properties. However, there has been no comprehensive review of the nutritional and pharmacological properties of H. fusiformis. The aim of this systematic review was to provide detailed information from the published literature on the nutritional and pharmacological properties of H. fusiformis. A comprehensive online search of the literature was conducted by accessing databases, such as PubMed, SpringerLink, ScienceDirect, and Google Scholar, for published studies on the nutritional and pharmacological properties of H. fusiformis between 2010 and 2021. A total of 916 articles were screened from all the databases using the preferred reporting items for systematic reviews and meta-analyses method. Screening based on the setdown criteria resulted in 59 articles, which were used for this review. In this review, we found that there has been an increase in the number of publications on the pharmacological and nutritional properties of H. fusiformis over the last 10 years. In the last 10 years, studies have focused on the proximate, mineral, polysaccharide, and bioactive compound composition, and pharmacological properties, such as antioxidant, anticancer, antitumor, anti-inflammatory, photoprotective, neuroprotective, antidiabetic, immunomodulatory, osteoprotective, and gastroprotective properties of H. fusiformis extracts. Overall, further studies and strategies are required to develop H. fusiformis as a promising resource for the nutrition and pharmacological industries.
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Pangestuti R, Shin KH, Kim SK. Anti-Photoaging and Potential Skin Health Benefits of Seaweeds. Mar Drugs 2021; 19:172. [PMID: 33809936 PMCID: PMC8004118 DOI: 10.3390/md19030172] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 03/16/2021] [Accepted: 03/20/2021] [Indexed: 12/17/2022] Open
Abstract
The skin health benefits of seaweeds have been known since time immemorial. They are known as potential renewable sources of bioactive metabolites that have unique structural and functional features compared to their terrestrial counterparts. In addition, to the consciousness of green, eco-friendly, and natural skincare and cosmetics products, their extracts and bioactive compounds such as fucoidan, laminarin, carrageenan, fucoxanthin, and mycosporine like amino acids (MAAs) have proven useful in the skincare and cosmetic industries. These bioactive compounds have shown potential anti-photoaging properties. Furthermore, some of these bioactive compounds have been clinically tested and currently available in the market. In this contribution, the recent studies on anti-photoaging properties of extracts and bioactive compounds derived from seaweeds were described and discussed.
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Affiliation(s)
- Ratih Pangestuti
- Director of Research and Development Division for Marine Bio Industry, Indonesian Institute of Sciences (LIPI), West Nusa Tenggara 83352, Indonesia;
| | - Kyung-Hoon Shin
- Department. of Marine Science and Convergence Engineering, College of Science and Technology, Hanyang University, Gyeonggi-do 11558, Korea;
| | - Se-Kwon Kim
- Department. of Marine Science and Convergence Engineering, College of Science and Technology, Hanyang University, Gyeonggi-do 11558, Korea;
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Dörschmann P, Schmitt C, Bittkau KS, Neupane S, Synowitz M, Roider J, Alban S, Held-Feindt J, Klettner A. Evaluation of a Brown Seaweed Extract from Dictyosiphon foeniculaceus as a Potential Therapeutic Agent for the Treatment of Glioblastoma and Uveal Melanoma. Mar Drugs 2020; 18:E625. [PMID: 33302412 PMCID: PMC7762554 DOI: 10.3390/md18120625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 11/27/2020] [Accepted: 12/03/2020] [Indexed: 11/16/2022] Open
Abstract
Ingredients of brown seaweed like fucoidans are often described for their beneficial biological effects, that might be interesting for a medical application. In this study, we tested an extract from Dictyosiphon foeniculaceus (DF) to evaluate the effects in glioblastoma and uveal melanoma, looking for a possible anti-cancer treatment. We investigated toxicity, VEGF (vascular endothelial growth factor) secretion and gene expression of tumor and non-tumor cells. SVGA (human fetal astrocytes), the human RPE (retinal pigment epithelium) cell line ARPE-19, the tumor cell line OMM-1 (human uveal melanoma), and two different human primary glioblastoma cultures (116-14 and 118-14) were used. Tests for cell viability were conducted with MTS-Assay (3-(4,5-Dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H-tetrazolium), and the proliferation rate was determined with cell counting. VEGF secretion was assessed with ELISA (enzyme-linked immunosorbent assay). The gene expression of VEGF receptor 1 (VEGFR1), VEGF receptor 2 (VEGFR2) and VEGF-A was determined with real-time qPCR (quantitative polymerase chain reaction). DF lowered the cell viability of OMM-1. Proliferation rates of ARPE-19 and OMM-1 were decreased. The VEGF secretion was inhibited in ARPE-19 and OMM-1, whereas it was increased in SVGA and 116-14. The expression of VEGFR1 was absent and not influenced in OMM-1 and ARPE-19. VEGFR2 expression was lowered in 116-14 after 24 h, whereas VEGF-A was increased in 118-14 after 72 h. The extract lowered cell viability slightly and was anti-proliferative depending on the cell type investigated. VEGF was heterogeneously affected. The results in glioblastoma were not promising, but the anti-tumor properties in OMM-1 could make them interesting for further research concerning cancer diseases in the human eye.
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Affiliation(s)
- Philipp Dörschmann
- Department of Ophthalmology, University Medical Center Schleswig-Holstein UKSH, Campus Kiel, D-24105 Kiel, Germany; (J.R.); (A.K.)
| | | | - Kaya Saskia Bittkau
- Pharmaceutical Institute, Kiel University, D-24118 Kiel, Germany; (K.S.B.); (S.N.); (S.A.)
| | - Sandesh Neupane
- Pharmaceutical Institute, Kiel University, D-24118 Kiel, Germany; (K.S.B.); (S.N.); (S.A.)
| | - Michael Synowitz
- Department of Neurosurgery, University Medical Center Schleswig-Holstein UKSH, Campus Kiel, D-24105 Kiel, Germany; (M.S.); (J.H.-F.)
| | - Johann Roider
- Department of Ophthalmology, University Medical Center Schleswig-Holstein UKSH, Campus Kiel, D-24105 Kiel, Germany; (J.R.); (A.K.)
| | - Susanne Alban
- Pharmaceutical Institute, Kiel University, D-24118 Kiel, Germany; (K.S.B.); (S.N.); (S.A.)
| | - Janka Held-Feindt
- Department of Neurosurgery, University Medical Center Schleswig-Holstein UKSH, Campus Kiel, D-24105 Kiel, Germany; (M.S.); (J.H.-F.)
| | - Alexa Klettner
- Department of Ophthalmology, University Medical Center Schleswig-Holstein UKSH, Campus Kiel, D-24105 Kiel, Germany; (J.R.); (A.K.)
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