1
|
Chang QX, Lyu JL, Wu PY, Wen KC, Chang CC, Chiang HM. Coffea arabica Extract Attenuates Atopic Dermatitis-like Skin Lesions by Regulating NLRP3 Inflammasome Expression and Skin Barrier Functions. Int J Mol Sci 2023; 24:12367. [PMID: 37569742 PMCID: PMC10418848 DOI: 10.3390/ijms241512367] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 07/27/2023] [Accepted: 07/31/2023] [Indexed: 08/13/2023] Open
Abstract
Atopic dermatitis (AD) is a common skin disease worldwide. The major causes of AD are skin barrier defects, immune dysfunction, and oxidative stress. In this study, we investigated the anti-oxidation and anti-inflammation effects of Coffea arabica extract (CAE) and its regulation of the skin barrier and immune functions in AD. In vitro experiments revealed that CAE decreased the reactive oxygen species levels and inhibited the translocation of nuclear factor-κB (NF-κB), further reducing the secretion of interleukin (IL)-1β and IL-6 induced by interferon-γ (IFN-γ)/tumor necrosis factor-α (TNF-α). Moreover, CAE decreased IFN-γ/TNF-α-induced NLR family pyrin domain-containing 3 (NLRP3), caspase-1, high-mobility group box 1 (HMGB1), and receptor for advanced glycation end products (RAGE) expression levels. It also restored the protein levels of skin barrier function-related markers including filaggrin and claudin-1. In vivo experiments revealed that CAE not only reduced the redness of the backs of mice caused by 2,4-dinitrochlorobenzene (DNCB) but also reduced the levels of pro-inflammatory factors in their skin. CAE also reduced transepidermal water loss (TEWL) and immune cell infiltration in DNCB-treated mice. Overall, CAE exerted anti-oxidation and anti-inflammation effects and ameliorated skin barrier dysfunction, suggesting its potential as an active ingredient for AD treatment.
Collapse
Affiliation(s)
- Qiao-Xin Chang
- Department of Cosmeceutics, China Medical University, Taichung 406, Taiwan; (Q.-X.C.); (J.-L.L.); (K.-C.W.); (C.-C.C.)
| | - Jia-Ling Lyu
- Department of Cosmeceutics, China Medical University, Taichung 406, Taiwan; (Q.-X.C.); (J.-L.L.); (K.-C.W.); (C.-C.C.)
- Ph.D. Program for Biotechnology Industry, China Medical University, Taichung 406, Taiwan
| | - Po-Yuan Wu
- Department of Dermatology, China Medical University Hospital, Taichung 404, Taiwan;
- School of Medicine, China Medical University, Taichung 404, Taiwan
| | - Kuo-Ching Wen
- Department of Cosmeceutics, China Medical University, Taichung 406, Taiwan; (Q.-X.C.); (J.-L.L.); (K.-C.W.); (C.-C.C.)
| | - Chang-Cheng Chang
- Department of Cosmeceutics, China Medical University, Taichung 406, Taiwan; (Q.-X.C.); (J.-L.L.); (K.-C.W.); (C.-C.C.)
- School of Medicine, China Medical University, Taichung 404, Taiwan
| | - Hsiu-Mei Chiang
- Department of Cosmeceutics, China Medical University, Taichung 406, Taiwan; (Q.-X.C.); (J.-L.L.); (K.-C.W.); (C.-C.C.)
- Ph.D. Program for Biotechnology Industry, China Medical University, Taichung 406, Taiwan
| |
Collapse
|
2
|
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.
Collapse
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,
| |
Collapse
|
3
|
Shen JW, Wu PY, Kuo YH, Chang QX, Wen KC, Chiang HM. Fermented Taiwanofungus camphoratus Extract Ameliorates Psoriasis-Associated Response in HaCaT Cells via Modulating NF-𝜅B and mTOR Pathways. Int J Mol Sci 2022; 23:ijms232314623. [PMID: 36498953 PMCID: PMC9739991 DOI: 10.3390/ijms232314623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 11/17/2022] [Accepted: 11/18/2022] [Indexed: 11/24/2022] Open
Abstract
Psoriasis is a chronic autoimmune disease, and until now, it remains an incurable disease. Therefore, the development of new drugs or agents that ameliorate the disease will have marketing potential. Taiwanofungus camphoratus (TC) is a specific fungus in Taiwan. It is demonstrated to have anticancer, anti-inflammation, and hepatoprotective effects. However, the effects of TC fermented extract on psoriasis are under investigation. In this research, we studied the ability of TC on antioxidative activity and the efficacy of TC on interleukin-17 (IL-17A)-induced intracellular oxidative stress, inflammation-relative, and proliferation-relative protein expression in human keratinocytes. The results of a DPPH radical scavenging assay, reducing power assay, and hydroxyl peroxide inhibition assay indicated that TC has a potent antioxidant ability. Furthermore, TC could reduce IL-17A-induced intracellular ROS generation and restore the NADPH level. In the investigation of pathogenesis, we discovered TC could regulate inflammatory and cell proliferation pathways via p-IKKα/p-p65 and p-mTOR/p-p70S6k signaling pathways in human keratinocytes. In conclusion, TC showed characteristics such as antioxidant, anti-inflammatory, and anti-psoriatic-associated responses. It is expected to be developed as a candidate for oxidative-stress-induced skin disorders or psoriasis treatment.
Collapse
Affiliation(s)
- Jia-Wei Shen
- Department of Cosmeceutics, China Medical University, Taichung 406, Taiwan
| | - Po-Yuan Wu
- Department of Dermatology, China Medical University Hospital, Taichung 404, Taiwan
- School of Medicine, China Medical University, Taichung 404, Taiwan
| | - Yueh-Hsiung Kuo
- Department of Chinese Pharmaceutical Sciences and Chinese Medicine Resources, China Medical University, Taichung 404, Taiwan
- Department of Biotechnology, Asia University, Taichung 413, Taiwan
| | - Qiao-Xin Chang
- Department of Cosmeceutics, China Medical University, Taichung 406, Taiwan
| | - Kuo-Ching Wen
- Department of Cosmeceutics, China Medical University, Taichung 406, Taiwan
| | - Hsiu-Mei Chiang
- Department of Cosmeceutics, China Medical University, Taichung 406, Taiwan
- Ph.D. Program for Biotechnology Industry, School of Life Sciences, China Medical University, Taichung 406, Taiwan
- Correspondence: ; Tel.: +886-4-22053366 (ext. 5302)
| |
Collapse
|
4
|
Camponogara C, Oliveira SM. Are TRPA1 and TRPV1 channel-mediated signalling cascades involved in UVB radiation-induced sunburn? ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2022; 92:103836. [PMID: 35248760 DOI: 10.1016/j.etap.2022.103836] [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: 11/17/2021] [Revised: 02/09/2022] [Accepted: 02/28/2022] [Indexed: 06/14/2023]
Abstract
Burn injuries are underappreciated injuries associated with substantial morbidity and mortality. Overexposure to ultraviolet (UV) radiation has dramatic clinical effects in humans and is a significant public health concern. Although the mechanisms underlying UVB exposure are not fully understood, many studies have made substantial progress in the pathophysiology of sunburn in terms of its molecular aspects in the last few years. It is well established that the transient receptor potential ankyrin 1 (TRPA1), and vanilloid 1 (TRPV1) channels modulate the inflammatory, oxidative, and proliferative processes underlying UVB radiation exposure. However, it is still unknown which mechanisms underlying TRPV1/A1 channel activation are elicited in sunburn induced by UVB radiation. Therefore, in this review, we give an overview of the TRPV1/A1 channel-mediated signalling cascades that may be involved in the pathophysiology of sunburn induced by UVB radiation. These data will undoubtedly help to explain the various features of sunburn and contribute to the development of novel therapeutic approaches to better treat it.
Collapse
Affiliation(s)
- Camila Camponogara
- Graduated Program in Biological Sciences: Toxicological Biochemistry, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Sara Marchesan Oliveira
- Graduated Program in Biological Sciences: Toxicological Biochemistry, Federal University of Santa Maria, Santa Maria, RS, Brazil; Department of Biochemistry and Molecular Biology, Centre of Natural and Exact Sciences, Federal University of Santa Maria, Santa Maria, RS, Brazil.
| |
Collapse
|
5
|
Lyu JL, Liu YJ, Wen KC, Chiu CY, Lin YH, Chiang HM. Protective Effect of Djulis ( Chenopodium formosanum) Extract against UV- and AGEs-Induced Skin Aging via Alleviating Oxidative Stress and Collagen Degradation. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27072332. [PMID: 35408731 PMCID: PMC9000422 DOI: 10.3390/molecules27072332] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Revised: 03/30/2022] [Accepted: 03/31/2022] [Indexed: 12/18/2022]
Abstract
Skin aging is a complex process involving photoaging and glycation stress, which share some fundamental pathways and have common mediators. They can cause skin damage and collagen degradation by inducing oxidative stress and the accumulation of reactive oxygen species (ROS). Chenopodium formosanum (CF), also known as Djulis, is a traditional cereal in Taiwan. This study investigated the protection mechanisms of CF extract against ultraviolet (UV) radiation and advanced glycation end products (AGEs)-induced stress. The results indicated that CF extract had strong antioxidant and free radical scavenging effects. It could reduce UV-induced intracellular ROS generation and initiate the antioxidant defense system by activating the nuclear factor erythroid 2-related factor 2 (Nrf2)/heme oxygenase-1 (HO-1) signaling pathway in human skin fibroblasts. CF extract modulated mitogen-activated protein kinase (MAPK) and transformed growth factor-beta (TGF-β) signaling pathways to alleviate oxidative stress-induced skin aging. Moreover, the results revealed that CF extract not only promoted collagen synthesis but also improved aging-induced collagen degradation. CF extract attenuated AGEs-induced ROS production and the upregulation of receptor for AGEs (RAGE). The overall results suggest that CF extract provides an effective anti-aging strategy by preventing skin damage from oxidative stress and collagen loss with potent antioxidant, anti-photoaging, and antiglycation activities.
Collapse
Affiliation(s)
- Jia-Ling Lyu
- Ph.D. Program for Biotechnology Industry, College of Life Sciences, China Medical University, Taichung 404, Taiwan; (J.-L.L.); (Y.-J.L.)
- Department of Cosmeceutics, College of Pharmacy, China Medical University, Taichung 404, Taiwan;
- Institute of New Drug Development, College of Medicine, China Medical University, Taichung 404, Taiwan
| | - Yi-Jung Liu
- Ph.D. Program for Biotechnology Industry, College of Life Sciences, China Medical University, Taichung 404, Taiwan; (J.-L.L.); (Y.-J.L.)
- Department of Cosmeceutics, College of Pharmacy, China Medical University, Taichung 404, Taiwan;
- Department of Biological Science and Technology, College of Life Sciences, China Medical University, Taichung 404, Taiwan
| | - Kuo-Ching Wen
- Department of Cosmeceutics, College of Pharmacy, China Medical University, Taichung 404, Taiwan;
| | - Chen-Yuan Chiu
- Center of Consultation, Center for Drug Evaluation, Taipei 115, Taiwan;
| | - Yung-Hsiang Lin
- Research and Design Center, TCI Co., Ltd., Taipei 114, Taiwan;
| | - Hsiu-Mei Chiang
- Ph.D. Program for Biotechnology Industry, College of Life Sciences, China Medical University, Taichung 404, Taiwan; (J.-L.L.); (Y.-J.L.)
- Department of Cosmeceutics, College of Pharmacy, China Medical University, Taichung 404, Taiwan;
- Correspondence: ; Tel.: +886-4-2205-3366-5302
| |
Collapse
|
6
|
Comparison of Single and Combined Use of Ergothioneine, Ferulic Acid, and Glutathione as Antioxidants for the Prevention of Ultraviolet B Radiation-Induced Photoaging Damage in Human Skin Fibroblasts. Processes (Basel) 2021. [DOI: 10.3390/pr9071204] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Ultraviolet B (UVB) irradiation can cause human skin damage or skin aging and wrinkle formation through photochemical reactions. Antioxidative substances may ameliorate UV damage. In this study, the anti-photoaging activity of three antioxidants—ergothioneine, ferulic acid, and glutathione—was investigated after UVB irradiation of Hs68 human skin fibroblast cells. The cells treated with these three antioxidants appeared similar to unirradiated control cells. UVB irradiation decreased cell viability by 26% compared to that of unirradiated control cells. However, the addition of either single or combined antioxidants enhanced cell viability after UVB irradiation. These three antioxidants can inhibit the production of reactive oxygen species (ROS) induced by the UVB irradiation of the Hs68 cells. Ergothioneine showed a greater inhibitory effect on matrix metalloproteinase-1 (MMP-1) performance than the other two antioxidants. IL-1 alpha was not detected in the Hs68 cells after exposure to a radiation dose of 150 mJ/cm2. Ergothioneine showed better restoration of type 1 procollagen than either ferulic acid or glutathione. Based on these results, the addition of two antioxidants was expected to restore type Ι procollagen production. In summary, these results demonstrate that the three tested antioxidants protect the skin against UVB-induced damage. The single and combined use of ergothioneine, ferulic acid, and glutathione has the potential for development as anti-photoaging materials in cosmetic applications.
Collapse
|
7
|
Majdalawieh AF, Yousef SM, Abu-Yousef IA, Nasrallah GK. Immunomodulatory and anti-inflammatory effects of sesamin: mechanisms of action and future directions. Crit Rev Food Sci Nutr 2021; 62:5081-5112. [PMID: 33544009 DOI: 10.1080/10408398.2021.1881438] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Inflammation is associated with the development and progression of various disorders including atherosclerosis, diabetes mellitus and cancer. Sesamin, a fat-soluble lignan derived from Sesamum indicum seeds and oil, has received increased attention due to its wide array of pharmacological properties including its immunomodulatory and anti-inflammatory potential. To date, no review has been conducted to summarize or analyze the immunomodulatory and anti-inflammatory roles of sesamin. Herein, we provide a comprehensive review of experimental findings that were reported with regards to the ability of sesamin to modulate inflammation, cellular and humoral adaptive immune responses and Th1/Th2 paradigm. The potential influence of sesamin on the cytotoxic activity of NK cells against cancer cells is also highlighted. The molecular mechanisms and the signal transduction pathways underlying such effects are underscored. The metabolism, pharmacokinetics, absorption, tissue distribution and bioavailability of sesamin in different species, including humans, are reviewed. Moreover, we propose future preclinical and clinical investigations to further validate the potential preventive and/or therapeutic efficacy of sesamin against various immune-related and inflammatory conditions. We anticipate that sesamin may be employed in future therapeutic regimens to enhance the efficacy of treatment and dampen the adverse effects of synthetic chemical drugs currently used to alleviate immune-related and inflammatory conditions.
Collapse
Affiliation(s)
- Amin F Majdalawieh
- Department of Biology, Chemistry, and Environmental Sciences, Faculty of Arts and Sciences, American University of Sharjah, Sharjah, United Arab Emirates
| | - Sarah M Yousef
- Department of Biology, Chemistry, and Environmental Sciences, Faculty of Arts and Sciences, American University of Sharjah, Sharjah, United Arab Emirates
| | - Imad A Abu-Yousef
- Department of Biology, Chemistry, and Environmental Sciences, Faculty of Arts and Sciences, American University of Sharjah, Sharjah, United Arab Emirates
| | - Gheyath K Nasrallah
- Department of Biomedical Science, College of Health Sciences, Member of QU Health, Qatar University, Doha, Qatar.,Biomedical Research Center, Qatar University, Doha, Qatar
| |
Collapse
|
8
|
Trehalose against UVB-induced skin photoaging by suppressing MMP expression and enhancing procollagen I synthesis in HaCaT cells. J Funct Foods 2020. [DOI: 10.1016/j.jff.2020.104198] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
|
9
|
Herranz-López M, Barrajón-Catalán E. Antioxidants and Skin Protection. Antioxidants (Basel) 2020; 9:antiox9080704. [PMID: 32759650 PMCID: PMC7466033 DOI: 10.3390/antiox9080704] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Accepted: 07/30/2020] [Indexed: 12/19/2022] Open
|
10
|
Kim J, Oh S, Shin YC, Wang C, Kang MS, Lee JH, Yun W, Cho JA, Hwang DY, Han DW, Lee J. Au nanozyme-driven antioxidation for preventing frailty. Colloids Surf B Biointerfaces 2020; 189:110839. [PMID: 32036333 DOI: 10.1016/j.colsurfb.2020.110839] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 01/29/2020] [Accepted: 01/30/2020] [Indexed: 12/23/2022]
Abstract
From senescence and frailty that may result from various biological, mechanical, nutritional, and metabolic processes, the human body has its own antioxidant defense enzymes to remove by-products of oxygen metabolism, and if unregulated, can cause several types of cell damage. Herein, an antioxidant, artificial nanoscale enzyme, called nanozyme (NZs), is introduced that is composed of Au nanoparticles (NPs) synthesized with a mixture of two representative phytochemicals, namely, gallic acid (GA) and isoflavone (IF), referred to as GI-Au NZs. Their unique antioxidant and anti-aging effects are monitored using Cell Counting Kit-8 and senescence-associated β-galactosidase assays on neonatal human dermal fibroblasts (nHDFs). Furthermore, alterations in epidermal thickness and SOD activity are measured under ultraviolet light to investigate the effects of the topical application of NZs on the histological structure and antioxidant activity in hairless mice skin. Then, hepatotoxicity and nephrotoxicity in the hairless mice are monitored. It is concluded that the NZs can effectively prevent serial passage-induced senescence in nHDFs, as well as oxidative stress in mice skin, suggesting a range of strategies to further develop novel therapeutics for acute frailty.
Collapse
Affiliation(s)
- Jeonghyo Kim
- Department of Chemistry, Chungnam National University, Daejeon, 34134, Republic of Korea
| | - Sangjin Oh
- Department of Chemistry, Chungnam National University, Daejeon, 34134, Republic of Korea
| | - Yong Cheol Shin
- Department of Medical Engineering, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
| | - Caifeng Wang
- Department of Cogno-Mechatronics Engineering, College of Nanoscience & Nanotechnology, Pusan National University, Busan, 46241, Republic of Korea
| | - Moon Sung Kang
- Department of Cogno-Mechatronics Engineering, College of Nanoscience & Nanotechnology, Pusan National University, Busan, 46241, Republic of Korea
| | - Jong Ho Lee
- Center for Biomaterials, Biomedical Research Institute, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
| | - Woobin Yun
- Department of Biomaterials Science, College of Natural Resources and Life Science, Pusan National University, Miryang, 50463, Republic of Korea
| | - Jin Ah Cho
- Department of Food and Nutrition, Chungnam National University, Daejeon, 34134, Republic of Korea
| | - Dae Youn Hwang
- Department of Biomaterials Science, College of Natural Resources and Life Science, Pusan National University, Miryang, 50463, Republic of Korea.
| | - Dong-Wook Han
- Department of Cogno-Mechatronics Engineering, College of Nanoscience & Nanotechnology, Pusan National University, Busan, 46241, Republic of Korea.
| | - Jaebeom Lee
- Department of Chemistry, Chungnam National University, Daejeon, 34134, Republic of Korea.
| |
Collapse
|
11
|
Functional Analysis of Macromolecular Polysaccharides: Whitening, Moisturizing, Anti-Oxidant, and Cell Proliferation. Antioxidants (Basel) 2019; 8:antiox8110533. [PMID: 31703361 PMCID: PMC6912603 DOI: 10.3390/antiox8110533] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Revised: 11/02/2019] [Accepted: 11/04/2019] [Indexed: 12/20/2022] Open
Abstract
In this research we utilized extracts from two different nature products, Achatina fulica and Heimiella retispora, to enhance skin moisturizing abilities, anti-oxidative properties, and cell proliferations. It was observed that two polysaccharides with anti-oxidative effects by chelating metal ions reduced oxidative stress and further blocked the formation of reactive oxygen species syntheses. To detect whether there was a similar effect within the cellular mechanism, a flow cytometry was applied for sensing the oxidative level and it was found that both materials inhibited the endogenous oxidative stress, which was induced by phorbol-12-myristate-13-acetate (PMA). Both polysaccharides also stimulated the production of collagen to maintain skin tightness and a moisturizing effect. In summary, we developed two macromolecular polysaccharides with potential applications in dermal care.
Collapse
|