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Wei J, Zhang G, Zhang X, Xu D, Gao J, Fan J, Zhou Z. Anthocyanins from Black Chokeberry (Aroniamelanocarpa Elliot) Delayed Aging-Related Degenerative Changes of Brain. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:5973-5984. [PMID: 28657734 DOI: 10.1021/acs.jafc.7b02136] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Aging is the greatest risk factor for most neurodegenerative diseases, which is associated with decreasing cognitive function and significantly affecting life quality in the elderly. Computational analysis suggested that 4 anthocyanins from chokeberry fruit increased Klotho (aging-suppressor) structural stability, so we hypothesized that chokeberry anthocyanins could antiaging. To explore the effects of anthocyanins treatment on brain aging, mice treated with 15 or 30 mg/kg anthocyanins by gavage and injected D-galactose accelerated aging per day. After 8 weeks, cognitive and noncognitive components of behavior were determined. Our studies showed that anthocyanins blocked age-associated cognitive decline and response capacity in senescence accelerated mice. Furthermore, mice treated with anthocyanins-supplemented showed better balance of redox systems (SOD, GSH-PX, and MDA) in all age tests. Three major monoamines were norepinephrine, dopamine, and 5-hydroxytryptamine, and their levels were significantly increased; the levels of inflammatory cytokines (COX2, TGF-β1, and IL-1) transcription and DNA damage were decreased significantly in brains of anthocyanins treated mice compared to aged models. The DNA damage signaling pathway was also regulated with anthocyanins. Our results suggested that anthocyanins was a potential approach for maintaining thinking and memory in aging mice, possibly by regulating the balance of redox system and reducing inflammation accumulation, and the most important factor was inhibiting DNA damage.
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Affiliation(s)
- Jie Wei
- School of Life Science, Liaoning University , Shenyang, Liaoning 110036, China
| | - Guokun Zhang
- Chinese Academy of Agricultural Sciences , Institute of Special Wild Economic Animal and Plant Science, Changchun, Jilin 130112, China
| | - Xiao Zhang
- School of Life Science, Liaoning University , Shenyang, Liaoning 110036, China
| | - Dexin Xu
- School of Life Science, Liaoning University , Shenyang, Liaoning 110036, China
| | - Jun Gao
- Liaoning Academy of Forestry Science , Shenyang, Liaoning 110032, China
| | - Jungang Fan
- Liaoning Academy of Forestry Science , Shenyang, Liaoning 110032, China
| | - Zhiquan Zhou
- Liaoning Academy of Forestry Science , Shenyang, Liaoning 110032, China
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Adipose Extracellular Matrix/Stromal Vascular Fraction Gel: A Novel Adipose Tissue-Derived Injectable for Stem Cell Therapy. Plast Reconstr Surg 2017; 139:867-879. [PMID: 28002250 DOI: 10.1097/prs.0000000000003214] [Citation(s) in RCA: 94] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND Adipose-derived stem cells and other stromal vascular fraction cells were used more often for stem cell therapy, even though limitations such as poor cell retention rate, complicated and expensive isolation processes, and the use of specific laboratory equipment need to be overcome. METHODS Here, the authors developed a novel but simple method for generating an injectable mixture of stromal vascular fraction cells and native adipose extracellular matrix. It is a purely mechanical process in which lipoaspirate is processed into an extracellular matrix/stromal vascular fraction gel. The standard processing procedure was established using quantized tests. The therapeutic potential of the product for wound healing was then tested. RESULTS Extracellular matrix/stromal vascular fraction gel derived from lipoaspirate and processed using a standard Coleman technique, followed by 1 minute of mechanical processing by passage back and forth between two 10-ml syringes at a flow rate of 10 ml/second, showed the highest adipose-derived stem cell and endothelial cell density. The stromal vascular fraction cells within the product also showed potential for multipotent differentiation similar to that of normal fat samples. In addition, the product showed better therapeutic results than stromal vascular fraction cell suspension when used to treat a nude mouse model of wound healing. CONCLUSIONS Extracellular matrix/stromal vascular fraction gel is an autologous injectable derived from native extracellular matrix and is a functional cellular component generated using a simple mechanical process. As such, it may offer a novel mode of tissue repair suitable for clinical application in stem cell therapies.
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Shahroudi MJ, Mehri S, Hosseinzadeh H. Anti-Aging Effect of Nigella Sativa Fixed Oil on D-Galactose-Induced Aging in Mice. J Pharmacopuncture 2017; 20:29-35. [PMID: 28392960 PMCID: PMC5374336 DOI: 10.3831/kpi.2017.20.006] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Objectives: Aging is an unconscious and gradual process that can lead to changes in biological systems. Induction of oxidative stress and apoptosis, hepatotoxicity and neurotoxicity are involved in the aging process. Regarding the antioxidant property of black seed oil, the aim of this study was to evaluate the anti-aging effect of Nigella sativa (N. sativa) oil on d-galactose-induced aging in mice. Methods: For induction of aging, D-galactose (500 mg/kg, subcoutaneously SC) was administrated to male mice for 42 days. Animals were treated with D-galactose alone or with b lack seed oil (0.1, 0.2, 0.5 mL/kg, intraperitoneally (ip)). Additionally, vitamin E (200 mg/kg) was used as a positive control. At the end of treatment, the malondialdehyde (MDA) and the glutathione (GSH) contents in brain and liver tissues were measured. Also, enzymes in serum, including aspartate aminotransferase (AST) and alanine amino transferase (ALT), were determined. The levels of the proteins Bax, Bcl2, caspase-3 (pro and cleaved) in brain and liver tissues were evaluated. Results: Administration of D-galactose (500 mg/kg, SC) for 42 days increased serum levels of ALT and AST, as well as the MDA content, in brain and liver tissues, but decreased the GSH content. Additionally, the levels of apoptotic proteins, including Bax, procaspase-3 and caspase-3 cleaved, were markedly increased. N. sativa oil (0.1 and 0.2 mL/kg) diminished the levels of the biochemical markers ALT and AST. Administration of black seed oil (0.1, 0.2 and 0.5 mL/kg) reduced lipid peroxidation and at doses 0.1 and 0.2 mL/kg significantly recovered the GSH content. The oil decreased Bax/Bcl2 levels and at 0.1 mL/kg down-regulated the expressions of caspase-3 (pro and cleaved) proteins in brain and liver tissues. Conclusion: Through its antioxidant and anti-apoptosis properties, black seed oil exhibited an anti-aging effect in a model of aging induced with D-galactose.
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Affiliation(s)
- Mahdieh Jafari Shahroudi
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Soghra Mehri
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran; Pharmaceutical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran; Neurocognitive Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hossein Hosseinzadeh
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran; Pharmaceutical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
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Chen J, Li Y, Zhu Q, Li T, Lu H, Wei N, Huang Y, Shi R, Ma X, Wang X, Sheng J. Anti-skin-aging effect of epigallocatechin gallate by regulating epidermal growth factor receptor pathway on aging mouse model induced by d-Galactose. Mech Ageing Dev 2017; 164:1-7. [PMID: 28343910 DOI: 10.1016/j.mad.2017.03.007] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Revised: 03/17/2017] [Accepted: 03/22/2017] [Indexed: 01/03/2023]
Abstract
Epigallocatechin gallate(EGCG) is a monomer separated from tea catechins, as an well-known antioxidant, which helps fight wrinkles and rejuvenate skin cells. In this study, we investigated the anti-aging effect of EGCG, and to clarify underlying mechanism of skin aging in a d-galactose-induced aging mouse model. Forty-five male mice were divided into 5 groups and treated with different dose of EGCG, Vitamin C (VitC) to mice as a positive control. All groups except vehicle were established aging model induced by d-galactose (200mg/kg/day) that was subcutaneously injected to mice for 8 weeks. Two weeks after injection of d-galactose, EGCG and Vit C groups were simultaneously administered once a day by subcutaneously inject after 5h for injecting d-galactose. The results show that EGCG can be absorbed by the skin. Overall, the conditions of the skin of EGCG-treatment groups were improved, the whole structure of skin were better than control groups, and the levels of oxidative stress and the expression of relate with EGFR proteins were significantly higher than control group after EGCG treatment. All these findings suggest that EGCG can resist skin senility effectively. And the EGFR with relate of downstream proteins are implicated in the skin aging.
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Affiliation(s)
- Jiming Chen
- Key Laboratory of Puer Tea Science, Ministry of Education, Yunnan Agricultural University, Kunming, China; Yunnan Research Center for Advanced Tea Processing, Kunming, China; College of Food Science and Technology, Yunnan Agricultural University, Kunming, China
| | - Yifan Li
- Key Laboratory of Puer Tea Science, Ministry of Education, Yunnan Agricultural University, Kunming, China; Yunnan Research Center for Advanced Tea Processing, Kunming, China
| | - Qiangqiang Zhu
- Key Laboratory of Puer Tea Science, Ministry of Education, Yunnan Agricultural University, Kunming, China; Yunnan Research Center for Advanced Tea Processing, Kunming, China; College of Food Science and Technology, Yunnan Agricultural University, Kunming, China
| | - Tong Li
- Key Laboratory of Puer Tea Science, Ministry of Education, Yunnan Agricultural University, Kunming, China; Yunnan Research Center for Advanced Tea Processing, Kunming, China; College of Food Science and Technology, Yunnan Agricultural University, Kunming, China
| | - Hao Lu
- Key Laboratory of Puer Tea Science, Ministry of Education, Yunnan Agricultural University, Kunming, China; Yunnan Research Center for Advanced Tea Processing, Kunming, China; College of Food Science and Technology, Yunnan Agricultural University, Kunming, China
| | - Nan Wei
- Key Laboratory of Puer Tea Science, Ministry of Education, Yunnan Agricultural University, Kunming, China; Yunnan Research Center for Advanced Tea Processing, Kunming, China
| | - Yewei Huang
- Key Laboratory of Puer Tea Science, Ministry of Education, Yunnan Agricultural University, Kunming, China; Yunnan Research Center for Advanced Tea Processing, Kunming, China; College of Food Science and Technology, Yunnan Agricultural University, Kunming, China
| | - Ruoyu Shi
- Key Laboratory of Puer Tea Science, Ministry of Education, Yunnan Agricultural University, Kunming, China; Yunnan Research Center for Advanced Tea Processing, Kunming, China
| | - Xiao Ma
- Key Laboratory of Puer Tea Science, Ministry of Education, Yunnan Agricultural University, Kunming, China; Yunnan Research Center for Advanced Tea Processing, Kunming, China.
| | - Xuanjun Wang
- Key Laboratory of Puer Tea Science, Ministry of Education, Yunnan Agricultural University, Kunming, China; Yunnan Research Center for Advanced Tea Processing, Kunming, China.
| | - Jun Sheng
- Key Laboratory of Puer Tea Science, Ministry of Education, Yunnan Agricultural University, Kunming, China; Yunnan Research Center for Advanced Tea Processing, Kunming, China.
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Liu Z, Hu GD, Luo XB, Yin B, Shu B, Guan JZ, Jia CY. Potential of bone marrow mesenchymal stem cells in rejuvenation of the aged skin of rats. Biomed Rep 2017; 6:279-284. [PMID: 28451386 PMCID: PMC5403304 DOI: 10.3892/br.2017.842] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2016] [Accepted: 09/23/2016] [Indexed: 01/12/2023] Open
Abstract
The aim of the present study was to evaluate the anti-aging effects of bone marrow-mesenchymal stem cells (BM-MSCs) in a D-galactose-induced skin aging rat model. Male Sprague Dawley rats were randomly divided into four groups (n=10/group) as follows: Normal control group; skin aging model group; MSC-treated group by subcutaneous multi-point injection. The skin aging model was established by a daily subcutaneous injection of 15% D-galactose (1,000 mg/kg) for 8 weeks. Rats in the MSC-treated groups were administered 3×106/ml BM-MSCs/green fluorescent protein (GFP) for 4 weeks, administered once per week. Oxidative/antioxidative parameters were evaluated, and morphological and ultrastructure analyses were performed. Rats in the model group exhibited the typical changes of aging skin. Compared with the control group, rats in the model group had significantly increased malondialdehyde (MDA) content (P<0.01), and decreased serum superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px) activities (P<0.05). MSC treatment markedly ameliorated aging-induced oxidative stress in the skin. Histologically, rats in the model group exhibited loosely arranged epidermal cell layers and disorganized collagen fibers. BM-MSC treatment significantly improved the histological abnormalities, which was similar to those in the control group. In addition, 7 days after the final cell transplantation, GFP-positive cells were observed by fluorescence microscopy to be distributed in the dermis. Injection of BM-MSCs significantly improved the D-galactose-induced histological abnormalities of the skin, by promoting an antioxidant response and ameliorating oxidative stress in aged skin. Thus, BM-MSCs may be beneficial in the rejuvenation of aged skin.
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Affiliation(s)
- Zhen Liu
- Department of Burns and Plastic Surgery, The 309th Hospital of PLA, Beijing 100091, P.R. China
| | - Guo-Dong Hu
- Department of Burns and Plastic Surgery, The 309th Hospital of PLA, Beijing 100091, P.R. China
| | - Xiao-Bo Luo
- Department of Orthopedics, The 309th Hospital of PLA, Beijing 100091, P.R. China
| | - Bin Yin
- Department of Burns and Plastic Surgery, The 309th Hospital of PLA, Beijing 100091, P.R. China
| | - Bin Shu
- Department of Burns and Plastic Surgery, The 309th Hospital of PLA, Beijing 100091, P.R. China
| | - Jing-Zhi Guan
- Department of Oncology, The 309th Hospital of PLA, Beijing 100091, P.R. China
| | - Chi-Yu Jia
- Department of Burns and Plastic Surgery, The 309th Hospital of PLA, Beijing 100091, P.R. China
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Li J, Cai D, Yao X, Zhang Y, Chen L, Jing P, Wang L, Wang Y. Protective Effect of Ginsenoside Rg1 on Hematopoietic Stem/Progenitor Cells through Attenuating Oxidative Stress and the Wnt/β-Catenin Signaling Pathway in a Mouse Model of d-Galactose-induced Aging. Int J Mol Sci 2016; 17:ijms17060849. [PMID: 27294914 PMCID: PMC4926383 DOI: 10.3390/ijms17060849] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Revised: 05/19/2016] [Accepted: 05/25/2016] [Indexed: 12/30/2022] Open
Abstract
Stem cell senescence is an important and current hypothesis accounting for organismal aging, especially the hematopoietic stem cell (HSC). Ginsenoside Rg1 is the main active pharmaceutical ingredient of ginseng, which is a traditional Chinese medicine. This study explored the protective effect of ginsenoside Rg1 on Sca-1⁺ hematopoietic stem/progenitor cells (HSC/HPCs) in a mouse model of d-galactose-induced aging. The mimetic aging mouse model was induced by continuous injection of d-gal for 42 days, and the C57BL/6 mice were respectively treated with ginsenoside Rg1, Vitamin E or normal saline after 7 days of d-gal injection. Compared with those in the d-gal administration alone group, ginsenoside Rg1 protected Sca-1⁺ HSC/HPCs by decreasing SA-β-Gal and enhancing the colony forming unit-mixture (CFU-Mix), and adjusting oxidative stress indices like reactive oxygen species (ROS), total anti-oxidant (T-AOC), superoxide dismutase (SOD), glutathione peroxidase (GSH-px) and malondialdehyde (MDA). In addition, ginsenoside Rg1 decreased β-catenin and c-Myc mRNA expression and enhanced the phosphorylation of GSK-3β. Moreover, ginsenoside Rg1 down-regulated advanced glycation end products (AGEs), 4-hydroxynonenal (4-HNE), phospho-histone H2A.X (r-H2A.X), 8-OHdG, p16(Ink4a), Rb, p21(Cip1/Waf1) and p53 in senescent Sca-1⁺ HSC/HPCs. Our findings indicated that ginsenoside Rg1 can improve the resistance of Sca-1⁺ HSC/HPCs in a mouse model of d-galactose-induced aging through the suppression of oxidative stress and excessive activation of the Wnt/β-catenin signaling pathway, and reduction of DNA damage response, p16(Ink4a)-Rb and p53-p21(Cip1/Waf1) signaling.
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Affiliation(s)
- Jing Li
- Laboratory of Stem Cells and Tissue Engineering, Chongqing Medical University, Chongqing 400016, China.
- Department of Pathophysiology, Chongqing Medical University, Chongqing 400016, China.
| | - Dachuan Cai
- Department of Infectious Diseases, the Second Affiliated Hospital, Chongqing Medical University, Chongqing 400016, China.
| | - Xin Yao
- Department of Pathophysiology, Chongqing Medical University, Chongqing 400016, China.
| | - Yanyan Zhang
- Laboratory of Stem Cells and Tissue Engineering, Chongqing Medical University, Chongqing 400016, China.
| | - Linbo Chen
- Laboratory of Stem Cells and Tissue Engineering, Chongqing Medical University, Chongqing 400016, China.
| | - Pengwei Jing
- Laboratory of Stem Cells and Tissue Engineering, Chongqing Medical University, Chongqing 400016, China.
| | - Lu Wang
- Laboratory of Stem Cells and Tissue Engineering, Chongqing Medical University, Chongqing 400016, China.
- Department of Histology and Embryology, Chongqing Medical University, Chongqing 400016, China.
| | - Yaping Wang
- Laboratory of Stem Cells and Tissue Engineering, Chongqing Medical University, Chongqing 400016, China.
- Department of Histology and Embryology, Chongqing Medical University, Chongqing 400016, China.
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Abstract
UNLABELLED Autologous adipose-derived stem cells have shown great promise in applications that treat photodamaged skin. Adipose-derived stem cells also have an antiwrinkle effect; consequently, they have become a topic of primary interest. Nude mice have been used extensively in studies of adipose-derived stem cells, human dermal fibroblasts, and other filler injections. However, a nude mouse model of photoaging has not yet been developed. Thus, we attempted to develop a nude mouse model of photoaging in this study. MATERIALS AND METHODS Fourteen, 5-week-old female BALB/c nude mice were irradiated with ultraviolet-B rays, 6 times a week for 6 weeks. The minimum erythema dose was established before the mice underwent ultraviolet irradiation to minimize the inflammation of the irradiated skin and to determine the initial irradiation dosage. The mean sizes of the wrinkled areas of skin and the mean depths of the wrinkles were compared between the study groups using replica analysis. Skin biopsies were performed on the 6th and 10th weeks of the study. RESULTS The mean sizes of the wrinkled areas of skin and the mean depths of the wrinkles increased significantly in the ultraviolet-B-irradiated nude mice compared with the nonirradiated mice, and the thicknesses of the epidermis and dermis of the skin from the upper and lower back were significantly greater after ultraviolet-B irradiation up to the 6th week of treatment (P < 0.05). Furthermore, the ultraviolet-B-irradiated group demonstrated reduced collagen fiber levels. CONCLUSIONS We have successfully developed a nude mouse model for research into photoaging, and these results indicate that the nude mouse is a suitable model for investigating the development of photoaging.
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Antiaging Effect of Inula britannica on Aging Mouse Model Induced by D-Galactose. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2016; 2016:6049083. [PMID: 27066100 PMCID: PMC4811090 DOI: 10.1155/2016/6049083] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/03/2016] [Accepted: 02/23/2016] [Indexed: 01/08/2023]
Abstract
The antiaging effect of Inula britannica flower total flavonoids (IBFTF) on aging mice induced by D-galactose and its mechanism was examined in this study. From the results, the biochemical indexes and histological analysis of skin tissues showed that IBFTF could effectively improve the antioxidant enzyme activity of the aging mice, enhance the activities of superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GSH-Px) of skin tissue, and decrease the malondialdehyde (MDA) content. Besides, IBFTF could maintain the skin collagen, hydroxyproline (Hyp), dermal thickness, and moisture content. Meanwhile, IBFTF could significantly reduce the number of cells arrested in G0/G1 phase, and from the point of view of protein and mRNA expression level in skin tissue, IBFTF could significantly increase the expression of Sirt1 and CyclinD1 but decrease the expression of p16 and p21, and its effect was not less than that of the well-known vitamin E (VE). Overall, these results seem to be implying that IBFTF is a potential natural anti-skin aging agent with great antioxidant ability.
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Wang T, Guo S, Liu X, Xv N, Zhang S. Protective effects of adipose-derived stem cells secretome on human dermal fibroblasts from ageing damages. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2015; 8:15739-15748. [PMID: 26884843 PMCID: PMC4730056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 10/04/2015] [Accepted: 11/22/2015] [Indexed: 06/05/2023]
Abstract
BACKGROUND Combined effects of intrinsic and extrinsic ageing factors on skin tissue and the therapies have been rarely studied before. ADSCs have gained popularity in anti-ageing field, which may provide promising methods to fight against skin ageing. OBJECTIVE To find out the fate of HDFs exposed to intrinsic or extrinsic ageing factors or both of them and further examine the impacts of ADSC-CM on the damaged HDFs. METHODS We irradiated HDFs with UVB at different senescent levels, and then treated them with ADSC-CM. After 48 h, we detected cellular proliferative activity, morphology, SA-β-Gal expression, apoptosis, mRNA expression of collagen I, collagen III and elastin. RESULTS Intrinsic ageing factors inhibited cellular proliferation, increased senescent ratio and reduced mRNA expression of collagen I, collagen III and elastin, so did UVB, except for its induction of elastin mRNA expression. Furthermore, ADSC-CM treatment can slightly or significantly improve cellular proliferative activity and restore functions both in irradiated and non-irradiated HDFs. Besides, ADSC-CM treatment decreased cellular apoptosis and senescence induced by UVB but had no obvious effect on cellular senescence induced by intrinsic ageing factors. The results were similar in three generations of HDFs, yet in different degrees. CONCLUSIONS The results suggest that ADSCs secretome protect HDFs from ageing damages but with some limitations.
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Affiliation(s)
- Ting Wang
- Department of Plastic Surgery, The First Hospital of China Medical UniversityShenyang, China
| | - Shu Guo
- Department of Plastic Surgery, The First Hospital of China Medical UniversityShenyang, China
| | - Xuehui Liu
- Department of Hand and Foot Microsurgery, Second Hospital of Dalian Medical UniversityDalian, China
| | - Nan Xv
- Department of Plastic Surgery, The First Hospital of China Medical UniversityShenyang, China
| | - Shuangyi Zhang
- Department of Plastic Surgery, The First Hospital of China Medical UniversityShenyang, China
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Zhao CH, Zhu ZH, Wang YL, Reiser G, Tang L. Protection of Salidroside on Primary Astrocytes from Cell Death by Attenuating Oxidative Stress. CHINESE HERBAL MEDICINES 2015. [DOI: 10.1016/s1674-6384(15)60056-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
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Popoola OK, Marnewick JL, Rautenbach F, Iwuoha EI, Hussein AA. Acylphloroglucinol Derivatives from the South African Helichrysum niveum and Their Biological Activities. Molecules 2015; 20:17309-24. [PMID: 26393563 PMCID: PMC6332446 DOI: 10.3390/molecules200917309] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Revised: 09/08/2015] [Accepted: 09/10/2015] [Indexed: 12/26/2022] Open
Abstract
Phytochemical investigation of aerial parts of Helichrysum niveum (H. niveum) using different chromatographic methods including semi-preparative HPLC afforded three new (1–3) and six known (4–10) acylphloroglucinols alongside a known dialcohol triterpene (11). The structures of the isolated compounds were characterized accordingly as 1-benzoyl-3 (3-methylbut-2-enylacetate)-phloroglucinol (helinivene A, 1), 1-benzoyl-3 (2S-hydroxyl-3-methylbut-3-enyl)-phloroglucinol (helinivene B, 2), 8-(2-methylpropanone)-3S,5,7-trihydroxyl-2,2-dimethoxychromane (helinivene C, 3), 1-(2-methylbutanone)-4-O-prenyl-phloroglucinol (4), 1-(2-methylpropanone)-4-O-prennyl-phloroglucinol (5), 1-(butanone)-3-prenyl-phloroglucinol (6), 1-(2-methylbutanone)-3-prenyl-phloroglucinol (7), 1-butanone-3-(3-methylbut-2-enylacetate)-phloroglucinol (8), 1-(2-methylpropanone)-3-prenylphloroglucinol (9), caespitate (10), and 3β-24-dihydroxyterexer-14-ene (11). Excellent total antioxidant capacities were demonstrated by helinivenes A and B (1 and 2) when measured as oxygen radicals absorbance capacity (ORAC), ferric-ion reducing antioxidant power (FRAP), trolox equivalent absorbance capacity (TEAC) and including the inhibition of Fe2+-induced lipid peroxidation (IC50 = 5.12 ± 0.90; 3.55 ± 1.92) µg/mL, while anti-tyrosinase activity at IC50 = 35.63 ± 4.67 and 26.72 ± 5.05 µg/mL were also observed for 1 and 2, respectively. This is the first chemical and in vitro biological study on H. niveum. These findings underpin new perspectives for the exploitation of these natural phenolic compounds in applications such as in the natural cosmeceutical and pharmaceutical sectors.
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Affiliation(s)
- Olugbenga K Popoola
- Chemistry Department, University of Western Cape, Private Bag X17, Bellville 7535, South Africa.
| | - Jeanine L Marnewick
- Oxidative Stress Research Centre, Faculty of Health and Wellness Sciences, Cape Peninsula University of Technology, P. O. BOX 1906, Bellville 7535, South Africa.
| | - Fanie Rautenbach
- Oxidative Stress Research Centre, Faculty of Health and Wellness Sciences, Cape Peninsula University of Technology, P. O. BOX 1906, Bellville 7535, South Africa.
| | - Emmanuel I Iwuoha
- Chemistry Department, University of Western Cape, Private Bag X17, Bellville 7535, South Africa.
| | - Ahmed A Hussein
- Chemistry Department, University of Western Cape, Private Bag X17, Bellville 7535, South Africa.
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Anti-aging Effect of Transplanted Amniotic Membrane Mesenchymal Stem Cells in a Premature Aging Model of Bmi-1 Deficiency. Sci Rep 2015; 5:13975. [PMID: 26370922 PMCID: PMC4570627 DOI: 10.1038/srep13975] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2015] [Accepted: 08/12/2015] [Indexed: 02/01/2023] Open
Abstract
To determine whether transplanted amniotic membrane mesenchymal stem cells (AMSCs) ameliorated the premature senescent phenotype of Bmi-1-deficient mice, postnatal 2-day-old Bmi-1(-/-) mice were injected intraperitoneally with the second-passage AMSCs from amniotic membranes of β-galactosidase (β-gal) transgenic mice or wild-type (WT) mice labeled with DiI. Three reinjections were given, once every seven days. Phenotypes of 5-week-old β-gal(+) AMSC-transplanted or 6-week-old DiI(+) AMSC-transplanted Bmi-1(-/-) mice were compared with vehicle-transplanted Bmi-1(-/-) and WT mice. Vehicle-transplanted Bmi-1(-/-) mice displayed growth retardation and premature aging with decreased cell proliferation and increased cell apoptosis; a decreased ratio and dysmaturity of lymphocytic series; premature osteoporosis with reduced osteogenesis and increased adipogenesis; redox imbalance and DNA damage in multiple organs. Transplanted AMSCs carried Bmi-1 migrated into multiple organs, proliferated and differentiated into multiple tissue cells, promoted growth and delayed senescence in Bmi-1(-/-) transplant recipients. The dysmaturity of lymphocytic series were ameliorated, premature osteoporosis were rescued by promoting osteogenesis and inhibiting adipogenesis, the oxidative stress and DNA damage in multiple organs were inhibited by the AMSC transplantation in Bmi-1(-/-) mice. These findings indicate that AMSC transplantation ameliorated the premature senescent phenotype of Bmi-1-deficient mice and could be a novel therapy to delay aging and prevent aging-associated degenerative diseases.
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Yang D, Wang ZQ, Deng JQ, Liao JY, Wang X, Xie J, Deng MM, Lü MH. Adipose-derived stem cells: A candidate for liver regeneration. J Dig Dis 2015; 16:489-98. [PMID: 26121206 DOI: 10.1111/1751-2980.12268] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
The scarcity of donor livers and the impracticality of hepatocyte transplantation represent the biggest obstacles for the treatment of liver failure. Adipose-derived stem cells, with their ability to differentiate into the hepatic lineage, provide a reliable alternative cell source with clear ethical and practical advantages. Moreover, adipose-derived stem cells can effectively repair liver damage by the dominant indirect pattern and increase the number of hepatocytes by the secondary direct pattern. In recent years, the development of the indirect pattern, which mainly includes immunomodulatory and trophic effects, has become a hot topic in the field of cell engineering. Therefore, adipose-derived stem cells are considered to be ideal therapeutic stem cells for human liver regeneration. In this article, we reviewed the advantages of adipose-derived stem cells in liver regeneration, and explore their underlying mechanisms.
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Affiliation(s)
- Dan Yang
- Department of Gastroenterology, The Affiliated Hospital of Luzhou Medical College, Luzhou, Sichuan Province, China
| | - Zhong Qiong Wang
- Department of Gastroenterology, The Affiliated Hospital of Luzhou Medical College, Luzhou, Sichuan Province, China
| | - Jia Qi Deng
- School of Foreign Languages of Sichuan Medical University, Luzhou, Sichuan Province, China
| | - Jing Yuan Liao
- Department of Gastroenterology, The Affiliated Hospital of Luzhou Medical College, Luzhou, Sichuan Province, China
| | - Xuan Wang
- Department of Gastroenterology, The Affiliated Hospital of Luzhou Medical College, Luzhou, Sichuan Province, China
| | - Jing Xie
- Department of Pediatric Surgery, The Affiliated Hospital of Luzhou Medical College, Luzhou, Sichuan Province, China
| | - Ming Ming Deng
- Department of Gastroenterology, The Affiliated Hospital of Luzhou Medical College, Luzhou, Sichuan Province, China
| | - Mu Han Lü
- Department of Gastroenterology, The Affiliated Hospital of Luzhou Medical College, Luzhou, Sichuan Province, China
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Rachul CM, Percec I, Caulfield T. The Fountain of Stem Cell-Based Youth? Online Portrayals of Anti-Aging Stem Cell Technologies. Aesthet Surg J 2015; 35:730-6. [PMID: 25922365 DOI: 10.1093/asj/sju111] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/24/2014] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND The hype surrounding stem cell science has created a market opportunity for the cosmetic industry. Cosmetic and anti-aging products and treatments that make claims regarding stem cell technology are increasingly popular, despite a lack of evidence for safety and efficacy of such products. OBJECTIVES This study explores how stem cell-based products and services are portrayed to the public through online sources, in order to gain insight into the key messages available to consumers. METHODS A content analysis of 100 web pages was conducted to examine the portrayals of stem cell-based cosmetic and anti-aging products and treatments. A qualitative discourse analysis of one web page further examined how language contributes to the portrayals of these products and treatments to public audiences. RESULTS The majority of web pages portrayed stem cell-based products as ready for public use. Very few web pages substantiated claims with scientific evidence, and even fewer mentioned any risks or limitations associated with stem cell science. The discourse analysis revealed that the framing and use of metaphor obscures the certainty of the efficacy of and length of time for stem cell-based anti-aging technology to be publicly available. CONCLUSIONS This study highlights the need to educate patients and the public on the current limits of stem cell applications in this context. In addition, generating scientific evidence for stem cell-based anti-aging and aesthetic applications is needed for optimizing benefits and minimizing adverse effects for the public. Having more evidence on efficacy and risks will help to protect patients who are eagerly seeking out these treatments.
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Affiliation(s)
- Christen M Rachul
- Ms Rachul is a PhD Candidate in Applied Linguistics and Language Studies, School of Linguistics and Language Studies, Carleton University, Ottawa, ON, Canada. Dr Percec is an Assistant Professor, Division of Plastic Surgery, Epigenetics Program, University of Pennsylvania, Philadelphia, PA. Professor Caulfield is the Canada Research Chair in Health Law and Policy; Trudeau Fellow and Professor, Faculty of Law and School of Public Health; and Research Director, Health Law Institute, University of Alberta, Edmonton, AB, Canada
| | - Ivona Percec
- Ms Rachul is a PhD Candidate in Applied Linguistics and Language Studies, School of Linguistics and Language Studies, Carleton University, Ottawa, ON, Canada. Dr Percec is an Assistant Professor, Division of Plastic Surgery, Epigenetics Program, University of Pennsylvania, Philadelphia, PA. Professor Caulfield is the Canada Research Chair in Health Law and Policy; Trudeau Fellow and Professor, Faculty of Law and School of Public Health; and Research Director, Health Law Institute, University of Alberta, Edmonton, AB, Canada
| | - Timothy Caulfield
- Ms Rachul is a PhD Candidate in Applied Linguistics and Language Studies, School of Linguistics and Language Studies, Carleton University, Ottawa, ON, Canada. Dr Percec is an Assistant Professor, Division of Plastic Surgery, Epigenetics Program, University of Pennsylvania, Philadelphia, PA. Professor Caulfield is the Canada Research Chair in Health Law and Policy; Trudeau Fellow and Professor, Faculty of Law and School of Public Health; and Research Director, Health Law Institute, University of Alberta, Edmonton, AB, Canada
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66
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Popoola OK, Marnewick JL, Rautenbach F, Ameer F, Iwuoha EI, Hussein AA. Inhibition of Oxidative Stress and Skin Aging-Related Enzymes by Prenylated Chalcones and Other Flavonoids from Helichrysum teretifolium. Molecules 2015; 20:7143-55. [PMID: 25903365 PMCID: PMC6272301 DOI: 10.3390/molecules20047143] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2015] [Revised: 04/09/2015] [Accepted: 04/14/2015] [Indexed: 11/17/2022] Open
Abstract
Ten flavonoid-related structures viz. heliteretifolin (1), isoxanthohumol (2), 2',4',6'-trihydroxy-3'-prenylchalcone (3), isoglabranin (4), glabranin (5), 7-methoxy-isoglabranin (6), quercetin (7), 4'-methoxyquercetin (8), 4'-methoxykaempferol (9) and mosloflavone (10) were isolated from a H. teretifolium methanolic extract and identified. One of them (compound 1) is reported for the first time from a natural source, while compounds 6, 8-10 were isolated for the first time from the genus Helichrysum. The total extract of H. teretifolium showed potent antioxidant activity. When tested for total antioxidant capacity compound 3 possesses moderate biological activity compared to 2, which displayed some of the highest TEAC values (4529.01 ± 2.44; 4170.66 ± 6.72) µM TE/g, respectively. Compounds 7 and 8 demonstrated the highest inhibitory activities on Fe2+-induced lipid peroxidation (IC50 = 2.931; 6.449 µg/mL); tyrosinase (8.092; 27.573) and elastase (43.342; 86.548). Additionally, the total antioxidant capacities measured as FRAP (4816.31 ± 7.42; 3584.17 ± 0.54) µM AAE/g, and ORAC for hydroxyl radical (7.265 ± 0.71; 6.779 ± 3.40) × 106 and peroxyl radical (17.836 ± 2.90; 12.545 ± 5.07) × 103 µM TE/g were also observed for compounds 7 and 8, respectively. In conclusion, H. teretifolium total extract represents a rich source of bioactive constituents with potent antioxidant and moderate anti-tyrosinase and anti-elastase activities that can help to avert accumulation of free radicals in the body, and could therefore be good candidates for the prevention and/or treatment of skin-related conditions, such as aging. This is the first scientific report on the chemical and biological profile of H. teretifolium.
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Affiliation(s)
- Olugbenga K Popoola
- Chemistry Department, University of Western Cape, Private Bag X17, Bellville 7535, South Africa.
| | - Jeanine L Marnewick
- Oxidative Stress Research Centre, Institute of Biomedical and Microbial Biotechnology, Faculty of Health and Wellness Sciences, Cape Peninsula University of Technology, P O BOX 1906, Bellville 7535, South Africa.
| | - Fanie Rautenbach
- Oxidative Stress Research Centre, Institute of Biomedical and Microbial Biotechnology, Faculty of Health and Wellness Sciences, Cape Peninsula University of Technology, P O BOX 1906, Bellville 7535, South Africa.
| | - Farouk Ameer
- Chemistry Department, University of Western Cape, Private Bag X17, Bellville 7535, South Africa.
| | - Emmanuel I Iwuoha
- Chemistry Department, University of Western Cape, Private Bag X17, Bellville 7535, South Africa.
| | - Ahmed A Hussein
- Chemistry Department, University of Western Cape, Private Bag X17, Bellville 7535, South Africa.
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Zhang Y, Wang J, Cheng X, Yi B, Zhang X, Li Q. Apigenin induces dermal collagen synthesis via smad2/3 signaling pathway. Eur J Histochem 2015; 59:2467. [PMID: 26150153 PMCID: PMC4503966 DOI: 10.4081/ejh.2015.2467] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2014] [Revised: 03/09/2015] [Accepted: 03/09/2015] [Indexed: 12/20/2022] Open
Abstract
Decrease in fibroblast-produced collagen has been proven to be the pivotal cause of skin aging, but there is no satisfactory drug which directly increases dermal thickness and collage density. Here we found that a flavonoid natural product, apigenin, could significantly increase collagen synthesis. NIH/3T3 and primary human dermal fibroblasts (HDFs) were incubated with various concentrations of apigenin, with dimethyl sulfoxide (DMSO) serving as the negative control. Real-time reverse-transcription polymerase chain reaction (PCR), Western Blot, and Toluidine blue staining demonstrated that apigenin stimulated type-I and type-III collagen synthesis of fibroblasts on the mRNA and protein levels. Meanwhile, apigenin did not induce expression of alpha smooth muscle actin (α-SMA) in vitro and in vivo, a fibrotic marker in living tissues. Then the production of collagen was confirmed by Masson’s trichrome stain, Picrosirius red stain and immunohistochemistry in mouse models. We also clarified that this compound induced collagen synthesis by activating smad2/3 signaling pathway. Taken together, without obvious influence on fibroblasts’ apoptosis and viability, apigenin could promote the type-I and type-III collagen synthesis of dermal fibroblasts in vitro and in vivo, thus suggesting that apigenin may serve as a potential agent for esthetic and reconstructive skin rejuvenation.
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Affiliation(s)
- Y Zhang
- Shanghai Jiao Tong University.
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Coenzyme Q10 inhibits the aging of mesenchymal stem cells induced by D-galactose through Akt/mTOR signaling. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2015; 2015:867293. [PMID: 25789082 PMCID: PMC4348608 DOI: 10.1155/2015/867293] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2014] [Revised: 01/24/2015] [Accepted: 02/02/2015] [Indexed: 12/14/2022]
Abstract
Increasing evidences indicate that reactive oxygen species are the main factor promoting stem cell aging. Recent studies have demonstrated that coenzyme Q10 (CoQ10) plays a positive role in organ and cellular aging. However, the potential for CoQ10 to protect stem cell aging has not been fully evaluated, and the mechanisms of cell senescence inhibited by CoQ10 are still poorly understood. Our previous study had indicated that D-galactose (D-gal) can remarkably induce mesenchymal stem cell (MSC) aging through promoting intracellular ROS generation. In this study, we showed that CoQ10 could significantly inhibit MSC aging induced by D-gal. Moreover, in the CoQ10 group, the expression of p-Akt and p-mTOR was clearly reduced compared with that in the D-gal group. However, after Akt activating by CA-Akt plasmid, the senescence-cell number in the CoQ10 group was significantly higher than that in the control group. These results indicated that CoQ10 could inhibit D-gal-induced MSC aging through the Akt/mTOR signaling.
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69
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Prevention of protein glycation by natural compounds. Molecules 2015; 20:3309-34. [PMID: 25690291 PMCID: PMC6272653 DOI: 10.3390/molecules20023309] [Citation(s) in RCA: 103] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2014] [Revised: 02/10/2015] [Accepted: 02/11/2015] [Indexed: 12/14/2022] Open
Abstract
Non-enzymatic protein glycosylation (glycation) contributes to many diseases and aging of organisms. It can be expected that inhibition of glycation may prolong the lifespan. The search for inhibitors of glycation, mainly using in vitro models, has identified natural compounds able to prevent glycation, especially polyphenols and other natural antioxidants. Extrapolation of results of in vitro studies on the in vivo situation is not straightforward due to differences in the conditions and mechanism of glycation, and bioavailability problems. Nevertheless, available data allow to postulate that enrichment of diet in natural anti-glycating agents may attenuate glycation and, in consequence, ageing.
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