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Amini M, Zadeh-Hashem E, Allymehr M. Assessment of the effect of kinetin against formic acid toxicity in chicken embryo model. J Anim Physiol Anim Nutr (Berl) 2023; 107:238-247. [PMID: 35288998 DOI: 10.1111/jpn.13701] [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: 10/28/2021] [Revised: 02/01/2022] [Accepted: 02/17/2022] [Indexed: 01/10/2023]
Abstract
The current study was designed to investigate the in ovo injection of formic acid (FA) on hatchability rate (HR; Experiment 1) and the potential ameliorative role of kinetin concurrent with FA on biochemical parameters of hatched broilers (Experiment 2). In Experiment 1, live embryonated eggs (n = 280; Day 4 of incubation) were in ovo injected with 0.03, 0.06, 0.125, 0.25, 0.50, 1, 2, 4, 8, 16 and 32 m m FA. In Experiment 2, intra-yolk-sac administration of toxic doses of FA (2 m m) concurrent with kinetin at 50, 100 or 200 µ m were evaluated on hatched embryos. The amount of malondialdehyde (MDA), total antioxidant capacity (TAC), total nitrate-nitrite (TNN), total lipid hydroperoxide (TLHP) and superoxide dismutase (SOD) activity was measured in serum, liver, heart and brain tissues. The results revealed that injection of 2 mM FA significantly increased mortality compared to the control group (p < 0.05). Concurrent administration of 50 or 100 µ m kinetin + 2 m m FA increased HR to 10% and 20% compared to the FA-alone-treated group, respectively. Intra-yolk-sac-received FA group showed greater amounts of MDA, TLHP and TNN and lesser amounts of TAC and SOD activity in serum and tissue samples of liver, heart and brain compared to control groups (p < 0.001). In comparison to the FA-alone-treated group, all doses of kinetin were able to increase the TAC levels in serum and tissue samples when administered concurrently with FA. The doses of 50 and 100 µ m kinetin were efficacious to ameliorate the toxic role of FA injection on SOD activities (p < 0.001). Co-injection of 100 µ m kinetin plus FA significantly reduced the amounts of MDA, TNN and TLHP in measured samples compared to the FA-alone-injected group (p < 0.001). Our results indicated that kinetin (especially at 100 µ m doses) would ameliorate the toxic effects of FA on developing live chicken embryos.
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Affiliation(s)
- Mehran Amini
- Department of Basic Sciences, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran
| | - Elham Zadeh-Hashem
- Department of Basic Sciences, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran
| | - Manoochehr Allymehr
- Department of Poultry Health and Diseases, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran
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2
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Mielcarek M, Isalan M. Kinetin stimulates differentiation of C2C12 myoblasts. PLoS One 2021; 16:e0258419. [PMID: 34644361 PMCID: PMC8513909 DOI: 10.1371/journal.pone.0258419] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Accepted: 09/27/2021] [Indexed: 11/19/2022] Open
Abstract
Kinetin or N6-furfuryladenine (K) belongs to a class of plant hormones called cytokinins, which are biologically active molecules modulating many aspects of plant growth and development. However, biological activities of cytokinins are not only limited to plants; their effects on animals have been widely reported in the literature. Here, we found that Kinetin is a potent small molecule that efficiently stimulates differentiation of C2C12 myoblasts into myotubes in vitro. The highest efficacy was achieved at 1μM and 10μM Kinetin concentrations, in both mitogen-poor and rich media. More importantly, Kinetin was able to strongly stimulate the MyoD-dependent conversion of fibroblasts into myotubes. Kinetin alone did not give rise to fibroblast conversion and required MyoD; this demonstrates that Kinetin augments the molecular repertoire of necessary key regulatory factors to facilitate MyoD-mediated myogenic differentiation. This novel Kinetin pro-myogenic function may be explained by its ability to alter intracellular calcium levels and by its potential to impact on Reactive Oxygen Species (ROS) signalling. Taken together, our findings unravel the effects of a new class of small molecules with potent pro-myogenic activities. This opens up new therapeutic avenues with potential for treating skeletal muscle diseases related to muscle aging and wasting.
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Affiliation(s)
- Michal Mielcarek
- Department of Life Sciences, Imperial College London, London, United Kingdom
- Imperial College Centre for Synthetic Biology, Imperial College London, London, United Kingdom
- * E-mail: ,
| | - Mark Isalan
- Department of Life Sciences, Imperial College London, London, United Kingdom
- Imperial College Centre for Synthetic Biology, Imperial College London, London, United Kingdom
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3
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Kim SH, Kim JH, Suk JM, Lee YI, Kim J, Lee JH, Lee KH. Identification of skin aging biomarkers correlated with the biomechanical properties. Skin Res Technol 2021; 27:940-947. [PMID: 33891336 DOI: 10.1111/srt.13046] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Accepted: 03/12/2021] [Indexed: 12/17/2022]
Abstract
BACKGROUND Skin aging can be described as a combination of intrinsic and extrinsic aging. Various parameters for evaluating skin characteristics have been proposed. However, an accurate biomarker for skin aging and the relationship between biomarkers and biomechanical parameters of the skin is yet to be explored. MATERIALS AND METHODS This study included 20 subjects by age. Skin aging was measured using non-invasive devices. Skin tissues were acquired through punch biopsy for immunohistochemistry and qRT-PCR of skin aging biomarkers, and analyzed correlation both, validated their use. RESULTS Biomechanical properties of skin aging decreased with age. Among the biomarkers previously reported, we found that the expression of Moesin, TXNDC5, RhoGDI, and RSU1 decreased, while that of Vimentin and FABP5 increased with age. Pearson correlation showed that the expression levels of TXNDC5, RhoGDI, RSU1, and Vimentin were significantly correlated with the results of non-invasive measurements. In addition, the expression of TXNDC5, RhoGDI, and RSU1 increased, while that of Vimentin decreased, in skin explants upon treatment with one of the anti-aging compounds, retinoic acid. CONCLUSION From this study, we identified practical molecular biomarkers of skin aging, TXNDC5, RhoGDI, RSU1, and Vimentin, which correlated with the skin biomechanical properties of skin aging.
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Affiliation(s)
| | - Ji Hye Kim
- Global Medical Research Center Ltd., Seoul, Korea
| | - Jang Mi Suk
- Global Medical Research Center Ltd., Seoul, Korea
| | - Young In Lee
- Department of Dermatology, Yonsei University College of Medicine, Severance Hospital, Cutaneous Biology Research Institute, Seoul, Korea.,Scar Laser and Plastic Surgery Center, Yonsei University College of Medicine, Yonsei Cancer Hospital, Seoul, Korea
| | - Jihee Kim
- Department of Dermatology, Yonsei University College of Medicine, Severance Hospital, Cutaneous Biology Research Institute, Seoul, Korea
| | - Ju Hee Lee
- Department of Dermatology, Yonsei University College of Medicine, Severance Hospital, Cutaneous Biology Research Institute, Seoul, Korea.,Scar Laser and Plastic Surgery Center, Yonsei University College of Medicine, Yonsei Cancer Hospital, Seoul, Korea
| | - Kwang Hoon Lee
- Global Medical Research Center Ltd., Seoul, Korea.,Department of Dermatology, Yonsei University College of Medicine, Severance Hospital, Cutaneous Biology Research Institute, Seoul, Korea
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Naik M, C. K. S, Rawson A, N V. Tender Coconut Water: A Review on Recent Advances in Processing and Preservation. FOOD REVIEWS INTERNATIONAL 2020. [DOI: 10.1080/87559129.2020.1785489] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Mohan Naik
- Department of Food Engineering, Indian Institute of Food Processing Technology, Thanjavur, India
| | - Sunil C. K.
- Department of Food Engineering, Indian Institute of Food Processing Technology, Thanjavur, India
| | - Ashish Rawson
- Department of Food Safety and Quality Testing, Indian Institute of Food Processing Technology, Thanjavur, India
| | - Venkatachalapathy N
- Department of Food Engineering, Indian Institute of Food Processing Technology, Thanjavur, India
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5
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Abstract
Biotechnology uses microorganisms and/or enzymes to obtain specific products through fermentative processes and/or genetic engineering techniques. Examples of these products are active ingredients, such as hyaluronic acid, kojic acid, resveratrol, and some enzymes, which are used in skin anti-aging products. In addition, certain growth factors, algae, stem cells, and peptides have been included in cosmetics and aesthetic medicines. Thus, biotechnology, cosmetics and aesthetic medicines are now closely linked, through the production of high-quality active ingredients, which are more effective and safer. This work describes the most used active ingredients that are produced from biotechnological processes. Although there are a vast number of active ingredients, the number of biotechnological active ingredients reported in the literature is not significantly high.
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Kadlecová A, Maková B, Artal-Sanz M, Strnad M, Voller J. The plant hormone kinetin in disease therapy and healthy aging. Ageing Res Rev 2019; 55:100958. [PMID: 31479763 DOI: 10.1016/j.arr.2019.100958] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2019] [Revised: 08/02/2019] [Accepted: 08/30/2019] [Indexed: 12/20/2022]
Abstract
It has been more than 60 years since the discovery of kinetin, the first known member of a group of plant hormones called cytokinins. In this review we summarize the health-promoting activity of kinetin in animal systems, ranging from cells cultured in vitro through invertebrates to mammals. Kinetin has been shown to modulate aging, to delay age-related physiological decline and to protect against some neurodegenerative diseases. We also review studies on its mechanism of action, as well as point out gaps in our current knowledge.
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Affiliation(s)
- Alena Kadlecová
- Laboratory of Growth Regulators, The Czech Academy of Sciences, Institute of Experimental Botany & Palacký University, Šlechtitelů 27, CZ-78371 Olomouc, Czech Republic
| | - Barbara Maková
- Laboratory of Growth Regulators, The Czech Academy of Sciences, Institute of Experimental Botany & Palacký University, Šlechtitelů 27, CZ-78371 Olomouc, Czech Republic
| | - Marta Artal-Sanz
- Andalusian Centre for Developmental Biology, CISIC-JA-University Pablo de Olavide, Department of Molecular Biology and Biochemical Engineering, Carretera de Utrera km 1, 41013 Sevilla, Spain
| | - Miroslav Strnad
- Laboratory of Growth Regulators, The Czech Academy of Sciences, Institute of Experimental Botany & Palacký University, Šlechtitelů 27, CZ-78371 Olomouc, Czech Republic
| | - Jiří Voller
- Laboratory of Growth Regulators, The Czech Academy of Sciences, Institute of Experimental Botany & Palacký University, Šlechtitelů 27, CZ-78371 Olomouc, Czech Republic; Department of Clinical and Molecular Pathology, Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacký University, Hněvotínská 3, 775 15 Olomouc, Czech Republic.
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Zhang H, Pan J, Wu X, Zuo AR, Wei Y, Ji ZL. Large-Scale Target Identification of Herbal Medicine Using a Reverse Docking Approach. ACS OMEGA 2019; 4:9710-9719. [PMID: 31460061 PMCID: PMC6648299 DOI: 10.1021/acsomega.9b00020] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/03/2019] [Accepted: 04/17/2019] [Indexed: 06/10/2023]
Abstract
Herbal medicine has been used to countermine various diseases for centuries. However, most of the therapeutic targets underlying herbal therapy remain unclear, which largely slow down the novel drug discovery process from natural products. In this study, we developed a novel computational pipeline for assisting de novo identification of protein targets for herbal ingredients. The pipeline involves pharmacophore comparison and reverse ligand-protein docking simulation in a high throughput manner. We evaluated the pipeline using three traditional Chinese medicine ingredients such as acteoside, quercetin, and epigallocatechin gallate as examples. A majority of current known targets of these ingredients were successfully identified by the pipeline. Structural comparative analyses confirmed that the predicted ligand-target interactions used the same binding pockets and binding modes as those of known ligand-target interactions. Furthermore, we illustrated the mechanism of actions of the ingredients by constructing the pharmacological networks on the basis of the predicted target profiles. In summary, we proposed an efficient and economic option for large-scale target exploration in the herb study. This pipeline will be particularly valuable in aiding precise drug discovery and drug repurposing from natural products.
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Affiliation(s)
- Haiping Zhang
- State
Key Laboratory of Stress Cell Biology, School of Life Sciences, Xiamen University, Xiamen, Fujian 361102, PR China
- Joint
Engineering Research Center for Health Big Data Intelligent Analysis
Technology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong Province 518055, People’s Republic
of China
| | - Jianbo Pan
- Department
of Ophthalmology, Johns Hopkins School of
Medicine, Baltimore, Maryland 21205, United States
| | - Xuli Wu
- School
of Medicine, Shenzhen University, Shenzhen, Guangdong Province 518060, People’s Republic
of China
| | - Ai-Ren Zuo
- Jiangxi
University of Traditional Chinese Medicine, Nanchang, Jiangxi, 330004, China
| | - Yanjie Wei
- Joint
Engineering Research Center for Health Big Data Intelligent Analysis
Technology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong Province 518055, People’s Republic
of China
| | - Zhi-Liang Ji
- State
Key Laboratory of Stress Cell Biology, School of Life Sciences, Xiamen University, Xiamen, Fujian 361102, PR China
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8
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Abstract
Skin aging is a complex process which involves all the layers of the epidermis and dermis. In order to slow skin aging, methods are researched which would strengthen and protect skin stem cells. Science is in search of the right method to stimulate the proliferation of epidermal stem cells. Plant stem cells show outstanding anti-aging properties, as they can, among other activities, stimulate fibroblasts to synthesise collagen, which, in turn, stimulates skin regeneration. One of the most important agents which give anti-aging properties to plant stem cell extracts is kinetin (6-furfuryladenine). This compound belongs to a cytokine group and is considered to be a strong antioxidant which protects protein and nucleic acids from oxidation and glycoxidation processes. It enables cells to remove the excess of free radicals to protect them from oxidative stress.
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Natural plant hormones cytokinins increase stress resistance and longevity of Caenorhabditis elegans. Biogerontology 2017; 19:109-120. [DOI: 10.1007/s10522-017-9742-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Accepted: 12/14/2017] [Indexed: 12/17/2022]
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10
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An S, Cha HJ, Ko JM, Han H, Kim SY, Kim KS, Lee SJ, An IS, Kim S, Youn HJ, Ahn KJ, Kim SY. Kinetin Improves Barrier Function of the Skin by Modulating Keratinocyte Differentiation Markers. Ann Dermatol 2017; 29:6-12. [PMID: 28223740 PMCID: PMC5318528 DOI: 10.5021/ad.2017.29.1.6] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Revised: 04/08/2016] [Accepted: 05/09/2016] [Indexed: 11/21/2022] Open
Abstract
Background Kinetin is a plant hormone that regulates growth and differentiation. Keratinocytes, the basic building blocks of the epidermis, function in maintaining the skin barrier. Objective We examined whether kinetin induces skin barrier functions in vitro and in vivo. Methods To evaluate the efficacy of kinetin at the cellular level, expression of keratinocyte differentiation markers was assessed. Moreover, we examined the clinical efficacy of kinetin by evaluating skin moisture, transepidermal water loss (TEWL), and skin surface roughness in patients who used kinetin-containing cream. We performed quantitative real-time polymerase chain reaction to measure the expression of keratinocyte differentiation markers in HaCaT cells following treatment. A clinical trial was performed to assess skin moisture, TEWL, and evenness of skin texture in subjects who used kinetin-containing cream for 4 weeks. Results Kinetin increased involucrin, and keratin 1 mRNA in HaCaT cells. Moreover, use of a kinetin-containing cream improved skin moisture and TEWL while decreasing roughness of skin texture. Conclusion Kinetin induced the expression of keratinocyte differentiation markers, suggesting that it may affect differentiation to improve skin moisture content, TEWL, and other signs of skin aging. Therefore, kinetin is a potential new component for use in cosmetics as an anti-aging agent that improves the barrier function of skin.
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Affiliation(s)
- Sungkwan An
- Korea Institute for Skin and Clinical Sciences, Konkuk University, Seoul, Korea
| | - Hwa Jun Cha
- Korea Institute for Skin and Clinical Sciences, Konkuk University, Seoul, Korea
| | - Jung-Min Ko
- Korea Institute for Skin and Clinical Sciences, Konkuk University, Seoul, Korea
| | - Hyunjoo Han
- Korea Institute for Skin and Clinical Sciences, Konkuk University, Seoul, Korea
| | - Su Young Kim
- Korea Institute for Skin and Clinical Sciences, Konkuk University, Seoul, Korea
| | - Kyung-Suk Kim
- Korea Institute for Skin and Clinical Sciences, Konkuk University, Seoul, Korea
| | - Song Jeong Lee
- Korea Institute for Skin and Clinical Sciences, Konkuk University, Seoul, Korea
| | | | - Sangwon Kim
- Orangewood Christian School, Maitland, FL, USA
| | - Hae Jeong Youn
- Department of Dermatology, Konkuk University School of Medicine, Seoul, Korea
| | - Kyu Joong Ahn
- Department of Dermatology, Konkuk University School of Medicine, Seoul, Korea
| | - Soo-Yeon Kim
- Korea Institute for Skin and Clinical Sciences, Konkuk University, Seoul, Korea
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11
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Kinetin improves motility, viability and antioxidative parameters of ram semen during storage at refrigerator temperature. Cell Tissue Bank 2016; 19:97-111. [PMID: 27888380 DOI: 10.1007/s10561-016-9604-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2016] [Accepted: 11/21/2016] [Indexed: 12/18/2022]
Abstract
The present experiment was conducted to evaluate the effect of kinetin on ram semen quality during cold storage. Ejaculates were collected using an artificial vagina from five Qezel rams. Ejaculates which met the criteria (volume of 0.75-2 ml; minimum spermatozoa concentration of 2.5 × 109 spermatozoa/ml and forward progressive motility of 80%), were pooled, diluted with extender without kinetin (control) or enriched with 25 (K 25), 50 (K 50), 100 (K 100) and 200 (K 200) μM kinetin at a final concentration of 500 × 106 spermatozoa per mL. Spermatozoa motion characteristics were evaluated by computer-assisted sperm analysis. In addition, percent of viability (spermatozoa showing no color was considered to be alive) and spermatozoa with intact plasma membrane (spermatozoa with curled/swollen tail was considered healthy) were determined. Moreover, amounts of malondialdehyde (MDA), total antioxidant activity (AOA), nitric oxide (NO) and superoxide dismutase (SOD) activity were determined in the seminal plasma and spermatozoa at 0, 24, 48 and 72 h of storage. Higher percent of total and forward progressive motility was observed in K 25, K 50 and K 100 groups compared to control group at 72 h of storage (P < 0.001). Moreover, K 25 (78.61 ± 1.11%), K 50 (82.46 ± 1.08%) and K 100 (82.96 ± 1.49%) groups showed higher percentage of viability compared to control (72.38 ± 1.49%) at 72 h of storage (P < 0.05). Semen enrichment with kinetin resulted in the higher percent of intact plasma membrane of spermatozoa at 48 and 72 h (P < 0.001). Amounts of MDA were lower and amounts of AOA were higher in K 50 and K 100 groups compared to control at 48 and 72 h (P < 0.05). There were no significant differences in NO levels and SOD activities of seminal plasma and spermatozoa among groups during the experiment. The present experiment revealed that kinetin at proper concentration could enhances spermatozoa kinematics, viability, spermatozoa plasma membrane functionality and amounts of AOA and reduces the level of lipid peroxidation during chilled storage of ram semen.
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12
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Paar M, Pavenstädt H, Kusche-Vihrog K, Drüppel V, Oberleithner H, Kliche K. Endothelial sodium channels trigger endothelial salt sensitivity with aging. Hypertension 2014; 64:391-6. [PMID: 24866143 DOI: 10.1161/hypertensionaha.114.03348] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The epithelial sodium channel is also expressed in vascular endothelium (endothelial sodium channel [EnNaC]). Depending on ambient sodium concentration, EnNaC is associated with mechanical stiffening of the endothelial cell cortex, leading to endothelial dysfunction. Because the incidence of both salt sensitivity and endothelial dysfunction increases with age, we investigated the abundance of EnNaC in aging mice. To assess EnNaC functionality and endothelial salt sensitivity, stiffness was measured while ambient sodium was varied. Aortae of young (3 months) and old (15 months) C57BL/6J wild-type mice were kept ex vivo on a physiological concentration of aldosterone (0.45 nmol/L). Spironolactone (10 nmol/L) and amiloride (1 μmol/L) were applied for aldosterone antagonism and EnNaC blockage, respectively. EnNaC at the endothelial cell surface was quantified by immunofluorescence staining. Cortical stiffness was monitored by atomic force microscopy when ambient sodium was raised from 135 to 150 mmol/L. In ex vivo aortae of older mice, endothelial cells had significantly higher EnNaC numbers than those of younger mice (+23%). In parallel, cortical stiffness was found increased (+8.5%). Acute application of high sodium led to an immediate rise in stiffness in both groups but was pronounced in endothelium of older mice (+18% versus +26%). Spironolactone and amiloride lowered EnNaC abundance and prevented endothelial stiffening under all conditions. We conclude that EnNaC mediates endothelial salt sensitivity in the aging process. This mechanism might contribute to the development of age-related cardiovascular disease and suggests the usage of spironolactone and amiloride specifically in the elderly.
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Affiliation(s)
- Moritz Paar
- From the Institute of Physiology II (M.P., K.K.-V., V.D., H.O.) and Department of Internal Medicine D (H.P., K.K.), University Hospital of Münster, Münster, Germany
| | - Hermann Pavenstädt
- From the Institute of Physiology II (M.P., K.K.-V., V.D., H.O.) and Department of Internal Medicine D (H.P., K.K.), University Hospital of Münster, Münster, Germany
| | - Kristina Kusche-Vihrog
- From the Institute of Physiology II (M.P., K.K.-V., V.D., H.O.) and Department of Internal Medicine D (H.P., K.K.), University Hospital of Münster, Münster, Germany
| | - Verena Drüppel
- From the Institute of Physiology II (M.P., K.K.-V., V.D., H.O.) and Department of Internal Medicine D (H.P., K.K.), University Hospital of Münster, Münster, Germany
| | - Hans Oberleithner
- From the Institute of Physiology II (M.P., K.K.-V., V.D., H.O.) and Department of Internal Medicine D (H.P., K.K.), University Hospital of Münster, Münster, Germany
| | - Katrin Kliche
- From the Institute of Physiology II (M.P., K.K.-V., V.D., H.O.) and Department of Internal Medicine D (H.P., K.K.), University Hospital of Münster, Münster, Germany.
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Shin JU, Lee WJ, Oh SH, Kim DY, Kim DS, Jung I, Lee JH. Altered vimentin protein expression in human dermal microvascular endothelial cells after ultraviolet or intense pulsed light treatment. Lasers Surg Med 2014; 46:431-8. [DOI: 10.1002/lsm.22253] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/26/2014] [Indexed: 01/13/2023]
Affiliation(s)
- Jung U Shin
- Department of Dermatology and Cutaneous Biology Research Institute, Institute for Human Tissue Restoration; Yonsei University College of Medicine; Seoul South Korea
| | - Won Jai Lee
- Department of Plastic and Reconstructive Surgery; Yonsei University College of Medicine; Seoul South Korea
| | - Sang Ho Oh
- Department of Dermatology and Cutaneous Biology Research Institute, Institute for Human Tissue Restoration; Yonsei University College of Medicine; Seoul South Korea
| | - Do Young Kim
- Department of Dermatology and Cutaneous Biology Research Institute, Institute for Human Tissue Restoration; Yonsei University College of Medicine; Seoul South Korea
| | - Dae Suk Kim
- Department of Dermatology and Cutaneous Biology Research Institute, Institute for Human Tissue Restoration; Yonsei University College of Medicine; Seoul South Korea
| | - Inhee Jung
- Department of Dermatology and Cutaneous Biology Research Institute, Institute for Human Tissue Restoration; Yonsei University College of Medicine; Seoul South Korea
| | - Ju Hee Lee
- Department of Dermatology and Cutaneous Biology Research Institute, Institute for Human Tissue Restoration; Yonsei University College of Medicine; Seoul South Korea
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Abstract
The scope of the current paper is to review existing and potential applications of proteomic analysis to aging research. The focus will lie on the unique opportunities of high-throughput studies for uncovering specific alterations in protein expression, protein complexes or protein modifications caused by biological aging. The result of such studies will outline aging phenotypes and potentially indicate pathways involved in the pathogenesis of age-associated disfunctions. Specific attention is paid to the illustrations of successful applications of proteomic technologies and potential applications of new proteomic concepts to biogerontological studies.
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Affiliation(s)
- Victor S Sharov
- University of Kansas, Pharmaceutical Chemistry Department, Lawrence, KS 66047, USA.
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Yentrapalli R, Azimzadeh O, Sriharshan A, Malinowsky K, Merl J, Wojcik A, Harms-Ringdahl M, Atkinson MJ, Becker KF, Haghdoost S, Tapio S. The PI3K/Akt/mTOR pathway is implicated in the premature senescence of primary human endothelial cells exposed to chronic radiation. PLoS One 2013; 8:e70024. [PMID: 23936371 PMCID: PMC3731291 DOI: 10.1371/journal.pone.0070024] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2013] [Accepted: 06/20/2013] [Indexed: 11/18/2022] Open
Abstract
The etiology of radiation-induced cardiovascular disease (CVD) after chronic exposure to low doses of ionizing radiation is only marginally understood. We have previously shown that a chronic low-dose rate exposure (4.1 mGy/h) causes human umbilical vein endothelial cells (HUVECs) to prematurely senesce. We now show that a dose rate of 2.4 mGy/h is also able to trigger premature senescence in HUVECs, primarily indicated by a loss of growth potential and the appearance of the senescence-associated markers ß-galactosidase (SA-ß-gal) and p21. In contrast, a lower dose rate of 1.4 mGy/h was not sufficient to inhibit cellular growth or increase SA-ß-gal-staining despite an increased expression of p21. We used reverse phase protein arrays and triplex Isotope Coded Protein Labeling with LC-ESI-MS/MS to study the proteomic changes associated with chronic radiation-induced senescence. Both technologies identified inactivation of the PI3K/Akt/mTOR pathway accompanying premature senescence. In addition, expression of proteins involved in cytoskeletal structure and EIF2 signaling was reduced. Age-related diseases such as CVD have been previously associated with increased endothelial cell senescence. We postulate that a similar endothelial aging may contribute to the increased rate of CVD seen in populations chronically exposed to low-dose-rate radiation.
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Affiliation(s)
- Ramesh Yentrapalli
- Helmholtz Zentrum München, German Research Center for Environmental Health, Institute of Radiation Biology, Neuherberg, Germany
- Centre for Radiation Protection Research, Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, Stockholm, Sweden
| | - Omid Azimzadeh
- Helmholtz Zentrum München, German Research Center for Environmental Health, Institute of Radiation Biology, Neuherberg, Germany
| | - Arundhathi Sriharshan
- Helmholtz Zentrum München, German Research Center for Environmental Health, Institute of Radiation Biology, Neuherberg, Germany
| | | | - Juliane Merl
- Research Unit Protein Science, Helmholtz Zentrum Muenchen, German Research Center for Environmental Health (GmbH), Neuherberg, Germany
| | - Andrzej Wojcik
- Centre for Radiation Protection Research, Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, Stockholm, Sweden
| | - Mats Harms-Ringdahl
- Centre for Radiation Protection Research, Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, Stockholm, Sweden
| | - Michael J. Atkinson
- Helmholtz Zentrum München, German Research Center for Environmental Health, Institute of Radiation Biology, Neuherberg, Germany
- Department of Radiation Oncology, Klinikum Rechts der Isar, Technische Universität München, Munich, Germany
| | | | - Siamak Haghdoost
- Centre for Radiation Protection Research, Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, Stockholm, Sweden
| | - Soile Tapio
- Helmholtz Zentrum München, German Research Center for Environmental Health, Institute of Radiation Biology, Neuherberg, Germany
- * E-mail:
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Lee YS, Park CO, Noh JY, Jin S, Lee NR, Noh S, Lee JH, Lee KH. Knockdown of paraoxonase 1 expression influences the ageing of human dermal microvascular endothelial cells. Exp Dermatol 2013; 21:682-7. [PMID: 22897574 DOI: 10.1111/j.1600-0625.2012.01555.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Skin is one of the most commonly studied tissues for microcirculation research owing to its close correlation of cutaneous vascular function, ageing and age-related cardiovascular events. To elucidate proteins that determine this correlation between endothelial cell function and ageing in the vascular environment of the skin, we performed a proteomic analysis of plasma samples from six donors in their 20s (young) and six donors in their 60s (old). Among identified proteins, paraoxonase 1 (PON1) was selected in this study. To elucidate the role of PON1 on skin ageing and determine how it controls cellular senescence, the characteristics of PON1 in human dermal microvascular endothelial cells (HDMECs) were determined. When the expression of endogenous PON1 was knocked-down by small interfering RNA (siRNA) targeting PON1, HDMECs showed characteristic features of cellular senescence such as increases in senescence-associated β-galactosidase stained cells and enlarged and flattened cell morphology. At 48 h post-transfection, the protein expression of p16 in PON1 siRNA-treated HDMECs was higher than that in scrambled siRNA-treated HDMECs. In addition, the expressions of moesin and rho GTP dissociation inhibitor, additional age-related candidate biomarkers, were decreased by PON1 knock-down in HDMECs. In conclusion, these results suggest that PON1 functions as an ageing-related protein and plays an important role in the cellular senescence of HDMECs.
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Affiliation(s)
- Yun Sun Lee
- Department of Dermatology, Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
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Poussard S, Pires-Alves A, Diallo R, Dupuy JW, Dargelos E. A natural antioxidant pine bark extract, Oligopin®, regulates the stress chaperone HSPB1 in human skeletal muscle cells: a proteomics approach. Phytother Res 2012. [PMID: 23192879 DOI: 10.1002/ptr.4895] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The gradual loss of muscle mass affecting all the elderly (sarcopenia) is most likely due to a decreased number and/or function of satellite cells. Accumulation of reactive oxygen species (ROS) has been clearly correlated to sarcopenia and could contribute to the impairment of satellite cell function. In this study, we analyzed the protective mechanism of action of a natural pine bark extract (Oligopin®) in human muscle satellite cells exposed to oxidative stress (H2O2). This polyphenol belongs to the flavonoid family and was able to abolish the H2 O2-induced apoptotic cell death. A large-scale proteomic strategy allowed us to identify several proteins that may function as early regulators of ROS-mediated events in muscle cells. Interestingly, we identified the stress chaperone heat shock protein beta-1, a main protector of muscle necrosis, as a target of Oligopin® and showed that this polyphenol was able to modulate its stress induced phosphorylation.
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Affiliation(s)
- Sylvie Poussard
- Univ. Bordeaux, CNRS, CBMN, UMR 5248, F-33600, Pessac, France
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Preventive effects of epigallocatechin-3-O-gallate against replicative senescence associated with p53 acetylation in human dermal fibroblasts. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2012; 2012:850684. [PMID: 23259030 PMCID: PMC3506918 DOI: 10.1155/2012/850684] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/19/2012] [Revised: 09/17/2012] [Accepted: 10/08/2012] [Indexed: 01/03/2023]
Abstract
Considering the various pharmacological activities of epigallocatechin-3-O-gallate (EGCG) including anticancer, and anti-inflammatory, antidiabetic, and so forth, relatively less attention has been paid to the antiaging effect of EGCG on primary cells. In this study, the preventive effects of EGCG against serial passage-induced senescence were investigated in primary cells including rat vascular smooth muscle cells (RVSMCs), human dermal fibroblasts (HDFs), and human articular chondrocytes (HACs). The involvement of Sirt1 and acetylated p53 was examined as an underlying mechanism for the senescence preventive activity of EGCG in HDFs. All cells were employed with the initial passage number (PN) between 3 and 7. For inducing senescence, the cells were serially passaged at the predetermined times and intervals in the absence or presence of EGCG (50 or 100 μM). Serial passage-induced senescence in RVSMCs and HACs was able to be significantly prevented at 50 μM EGCG, while in HDFs, 100 μM EGCG could significantly prevent senescence and recover their cell cycle progression close to the normal level. Furthermore, EGCG was found to prevent serial passage- and H(2)O(2)-induced senescence in HDFs by suppressing p53 acetylation, but the Sirt1 activity was unaffected. In addition, proliferating HDFs showed similar cellular uptake of FITC-conjugated EGCG into the cytoplasm with their senescent counterparts but different nuclear translocation of it from them, which would partly account for the differential responses to EGCG in proliferating versus senescent cells. Taking these results into consideration, it is suggested that EGCG may be exploited to craft strategies for the development of an antiaging or age-delaying agent.
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Semen coagulum liquefaction, sperm activation and cryopreservation of capuchin monkey (Cebus apella) semen in coconut water solution (CWS) and TES–TRIS. Anim Reprod Sci 2011; 123:75-80. [DOI: 10.1016/j.anireprosci.2010.11.002] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2010] [Revised: 10/18/2010] [Accepted: 11/02/2010] [Indexed: 11/20/2022]
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Singh R, Akhtar N, Haqqi TM. Green tea polyphenol epigallocatechin-3-gallate: inflammation and arthritis. [corrected]. Life Sci 2010; 86:907-18. [PMID: 20462508 PMCID: PMC3146294 DOI: 10.1016/j.lfs.2010.04.013] [Citation(s) in RCA: 134] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2010] [Revised: 04/15/2010] [Accepted: 04/29/2010] [Indexed: 12/18/2022]
Abstract
A number of factors including inflammation and oxidative stress are believed to play a role in the development of chronic joint diseases. Green tea has become a popular drink and is consumed throughout the world. Extracts of green tea and polyphenols present therein have been shown to inhibit the inflammatory responses in vitro in different cell types and the development of arthritis in animal model studies. There is considerable evidence that (-)-epigallocatechin-3-gallate (EGCG), the predominant green tea polyphenol which mimic its effects, inhibits enzyme activities and signal transduction pathways that play important roles in inflammation and joint destruction in arthritis. After oral consumption EGCG become bioavailable and proteomic studies suggest that EGCG may directly interact with a large set of protein targets and alter the physiological response of the cells. Taken together these and other studies identify and support the use of EGCG as a possible chemopreventive agent with a potential to inhibit the development of arthritis. Here we review the biological effects of EGCG in an attempt to understand its pivotal molecular targets that directly affect the inflammation and joint destruction process for prevention and/or for the development of new therapeutics for arthritis in humans.
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Affiliation(s)
- Rashmi Singh
- Department of Zoology, Mahila Mahavidyalaya, Banaras Hindu University, Varanasi, India
| | - Nahid Akhtar
- Department of Medicine/Rheumatology, Metrohealth Medical Center, Case Western Reserve University, 2500 Metrohealth Drive, Cleveland, OH 44109
| | - Tariq M. Haqqi
- Department of Medicine/Rheumatology, Metrohealth Medical Center, Case Western Reserve University, 2500 Metrohealth Drive, Cleveland, OH 44109
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Lee JH, Yoo JH, Oh SH, Lee KY, Lee KH. Knockdown of moesin expression accelerates cellular senescence of human dermal microvascular endothelial cells. Yonsei Med J 2010; 51:438-47. [PMID: 20376899 PMCID: PMC2852802 DOI: 10.3349/ymj.2010.51.3.438] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
PURPOSE Endothelial cells maintain the homeostasis of blood, which consists of plasma and cellular components, and regulate the interaction between blood and the surrounding tissues. They also have essential roles in vascular permeability, the circulation, coagulation, inflammation, wound healing, and tissue growth. The senescence of endothelial cells is closely related to the aging of the adjacent tissues and to age-related vascular disease. Recently, the expression of moesin was found to be decreased in elderly human dermal microvascular endothelial cells (HDMECs), and an association between moesin and senescence has been suggested. This study examined the functional role of moesin in cellular senescence. MATERIALS AND METHODS To study the effects of decreased moesin expression on cellular senescence and metabolism, HDMECs were transfected with short hairpin-RNA (shRNA) lentivirus to silence moesin gene expression. In addition, specimens from young and old human skin were stained with antimoesin and anti-p16 antibodies as an in vivo study. RESULTS Using shRNAlentivirus, moesin knock-down HDMECs developed characteristics associated with aging and expressed senescence associated-beta-galactosidase during early passages. They also showed increased p16 expression, decreased metabolic activity, and cell growth retardation. Human skin tissue from elderly persons showed decreased moesin expression and increased p16 expression. CONCLUSION These findings suggest that there is a functional association between moesin expression and cellular senescence. Further study of the functional mechanism of moesin in the cytoskeleton and cellular senescence is needed. In addition, this study provides a useful model for developing anti-aging treatments.
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Affiliation(s)
- Ju Hee Lee
- Department of Dermatology and Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Jung Hoan Yoo
- Department of Dermatology and Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Sang Ho Oh
- Department of Dermatology and Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Kyu-Yeop Lee
- Department of Dermatology and Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Kwang Hoon Lee
- Department of Dermatology and Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
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Cheng KW, Wong CC, Wang M, He QY, Chen F. Identification and characterization of molecular targets of natural products by mass spectrometry. MASS SPECTROMETRY REVIEWS 2010; 29:126-155. [PMID: 19319922 DOI: 10.1002/mas.20235] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Natural products, and their derivatives and mimics, have contributed to the development of important therapeutics to combat diseases such as infections and cancers over the past decades. The value of natural products to modern drug discovery is still considerable. However, its development is hampered by a lack of a mechanistic understanding of their molecular action, as opposed to the emerging molecule-targeted therapeutics that are tailored to a specific protein target(s). Recent advances in the mass spectrometry-based proteomic approaches have the potential to offer unprecedented insights into the molecular action of natural products. Chemical proteomics is established as an invaluable tool for the identification of protein targets of natural products. Small-molecule affinity selection combined with mass spectrometry is a successful strategy to "fish" cellular targets from the entire proteome. Mass spectrometry-based profiling of protein expression is also routinely employed to elucidate molecular pathways involved in the therapeutic and possible toxicological responses upon treatment with natural products. In addition, mass spectrometry is increasingly utilized to probe structural aspects of natural products-protein interactions. Limited proteolysis, photoaffinity labeling, and hydrogen/deuterium exchange in conjunction with mass spectrometry are sensitive and high-throughput strategies that provide low-resolution structural information of non-covalent natural product-protein complexes. In this review, we provide an overview on the applications of mass spectrometry-based techniques in the identification and characterization of natural product-protein interactions, and we describe how these applications might revolutionize natural product-based drug discovery.
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Affiliation(s)
- Ka-Wing Cheng
- School of Biological Sciences, The University of Hong Kong, Pokfulam Road, Hong Kong, China
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Yong JWH, Ge L, Ng YF, Tan SN. The chemical composition and biological properties of coconut (Cocos nucifera L.) water. Molecules 2009; 14:5144-64. [PMID: 20032881 PMCID: PMC6255029 DOI: 10.3390/molecules14125144] [Citation(s) in RCA: 198] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2009] [Revised: 12/03/2009] [Accepted: 12/08/2009] [Indexed: 12/13/2022] Open
Abstract
Coconut water (coconut liquid endosperm), with its many applications, is one of the world's most versatile natural product. This refreshing beverage is consumed worldwide as it is nutritious and beneficial for health. There is increasing scientific evidence that supports the role of coconut water in health and medicinal applications. Coconut water is traditionally used as a growth supplement in plant tissue culture/micropropagation. The wide applications of coconut water can be justified by its unique chemical composition of sugars, vitamins, minerals, amino acids and phytohormones. This review attempts to summarise and evaluate the chemical composition and biological properties of coconut water.
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Affiliation(s)
| | | | | | - Swee Ngin Tan
- Natural Sciences and Science Education Academic Group, Nanyang Technological University, 1 Nanyang Walk, 637616 Singapore
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Lee JH, Hong IA, Oh SH, Kwon YS, Cho SH, Lee KH. The effect of moesin overexpression on ageing of human dermal microvascular endothelial cells. Exp Dermatol 2009; 18:997-9. [DOI: 10.1111/j.1600-0625.2009.00898.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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25
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Amelina H, Cristobal S. Proteomic study on gender differences in aging kidney of mice. Proteome Sci 2009; 7:16. [PMID: 19358702 PMCID: PMC2673210 DOI: 10.1186/1477-5956-7-16] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2008] [Accepted: 04/09/2009] [Indexed: 11/23/2022] Open
Abstract
Background This study aims to analyze sex differences in mice aging kidney. We applied a proteomic technique based on subfractionation, and liquid chromatography coupled with 2-DE. Samples from male and female CD1-Swiss outbred mice from 28 weeks, 52 weeks, and 76 weeks were analysed by 2-DE, and selected proteins were identified by matrix assisted laser desorption ionisation time-of-flight mass spectrometry (MALDI-TOF MS). Results This proteomic analysis detected age-related changes in protein expression in 55 protein-spots, corresponding to 22 spots in males and 33 spots in females. We found a protein expression signature (PES) of aging composed by 8 spots, common for both genders. The identified proteins indicated increases in oxidative and proteolytic proteins and decreases in glycolytic proteins, and antioxidant enzymes. Conclusion Our results provide insights into the gender differences associated to the decline of kidney function in aging. Thus, we show that proteomics can provide valuable information on age-related changes in expression levels of proteins and related modifications. This pilot study is still far from providing candidates for aging-biomarkers. However, we suggest that the analysis of these proteins could suggest mechanisms of cellular aging in kidney, and improve the kidney selection for transplantation.
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Affiliation(s)
- Hanna Amelina
- Department of Biochemistry and Biophysics, Stockholm University, Sweden.
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26
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Tissue-Specific Targeting Based on Markers Expressed Outside Endothelial Cells. ADVANCES IN GENETICS 2009; 67:61-102. [DOI: 10.1016/s0065-2660(09)67003-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Won C, Park SK, Cho SG, Min BM, Roh S. Kinetin enhances in vitro development of parthenogenetic and nuclear transfer porcine embryos. Mol Reprod Dev 2008; 75:1701-9. [PMID: 18386297 DOI: 10.1002/mrd.20920] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Culture conditions affect the development of mammalian embryos in vitro. Kinetin belongs to the family of N(6)-substituted adenine derivates and promotes cell division, synthesis of DNA repair enzymes, superoxide dismutase activity, and ribosomal RNA transcription. We investigated the effects of kinetin on in vitro development of parthenogenetic and nuclear transfer (NT) porcine embryos. These embryos were cultured with or without kinetin in either BSA- or polyvinyl alcohol-containing medium for 7 days. mRNA expression of three developmentally important genes, HSP70, Glut-1, and poly[A] polymerase in NT embryos was analyzed. Regardless of kinetin supplementation, the proportion of blastocysts and blastocyst cells were not significantly different in parthenogenetic embryos. However, kinetin supplementation increased expansion and hatching rates in all groups. In somatic cell NT embryos, kinetin increased the proportion of embryos developed to blastocysts from 7.5% to 15.4% in medium supplemented with PVA. However, gene expression levels of HSP70, poly[A] polymerase and Glut-1 mRNA were not significantly different in NT blastocysts. The present study indicates that kinetin not only improves blastocyst expansion and cell number of parthenogenetic porcine embryos but also enhances NT porcine embryo development in a completely defined culture condition in vitro.
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Affiliation(s)
- C Won
- Dental Research Institute and CLS21, Seoul National University School of Dentistry, Seoul, Republic of Korea
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28
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Weinreb O, Amit T, Youdim MB. The application of proteomics for studying the neurorescue activity of the polyphenol (−)-epigallocatechin-3-gallate. Arch Biochem Biophys 2008; 476:152-60. [DOI: 10.1016/j.abb.2008.01.004] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2007] [Revised: 01/07/2008] [Accepted: 01/08/2008] [Indexed: 01/05/2023]
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Millioni R, Iori E, Puricelli L, Arrigoni G, Vedovato M, Trevisan R, James P, Tiengo A, Tessari P. Abnormal cytoskeletal protein expression in cultured skin fibroblasts from type 1 diabetes mellitus patients with nephropathy: A proteomic approach. Proteomics Clin Appl 2008; 2:492-503. [PMID: 21136853 DOI: 10.1002/prca.200780112] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2007] [Indexed: 01/06/2023]
Abstract
Diabetic nephropathy (DN) develops in about 40% of insulin-dependent type 1 diabetes mellitus (T1DM) patients, and is associated not only with diabetes duration and metabolic control, but also with a genetic predisposition. Constitutive alterations of cytoskeletal proteins may play a role in the development of DN. We investigated the expression of these proteins in cultured skin fibroblasts, obtained from long-term T1DM patients with and without DN but comparable metabolic control, and from matched healthy subjects, by means of 2-DE electrophoresis and MS-MALDI analyses. In T1DM with DN, compared to the other two groups, quantitative analyses revealed an altered expression of 17 spots (p<0.05-p<0.01), corresponding to 12 unique proteins. In T1DM with DN, beta-actin and three isoforms of tubulin beta-2 chain, tropomodulin-3, and LASP-1 were decreased, whereas two tubulin beta-4 chain isoforms, one alpha actinin-4 isoform, membrane-organizing extension spike protein (MOESIN), FLJ00279 (corresponding to a fragment of myosin heavy chain, non-muscle type A), vinculin, a tropomyosin isoform, and the macrophage capping protein were increased. A shift in caldesmon isoforms was also detected. These results demonstrate an association between DN and the constitutive expression of cytoskeleton proteins in cultured skin fibroblasts from T1DM with DN, which may retain pathophysiologycal implications.
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Affiliation(s)
- Renato Millioni
- Department of Clinical and Experimental Medicine, Chair of Metabolism, University of Padova, Padova, Italy
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Chiu PC, Chan CC, Lin HM, Chiu HC. The clinical anti-aging effects of topical kinetin and niacinamide in Asians: a randomized, double-blind, placebo-controlled, split-face comparative trial. J Cosmet Dermatol 2007; 6:243-9. [DOI: 10.1111/j.1473-2165.2007.00342.x] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Mi J, Garcia-Arcos I, Alvarez R, Cristobal S. Age-related subproteomic analysis of mouse liver and kidney peroxisomes. Proteome Sci 2007; 5:19. [PMID: 18042274 PMCID: PMC2231346 DOI: 10.1186/1477-5956-5-19] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2007] [Accepted: 11/27/2007] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Despite major recent advances in the understanding of peroxisomal functions and how peroxisomes arise, only scant information is available regarding this organelle in cellular aging. The aim of this study was to characterize the changes in the protein expression profile of aged versus young liver and kidney peroxisome-enriched fractions from mouse and to suggest possible mechanisms underlying peroxisomal aging. Peroxisome-enriched fractions from 10 weeks, 18 months and 24 months C57bl/6J mice were analyzed by quantitative proteomics. RESULTS Peroxisomal proteins were enriched by differential and density gradient centrifugation and proteins were separated by two-dimensional electrophoresis (2-DE), quantified and identified by mass spectrometry (MS). In total, sixty-five proteins were identified in both tissues. Among them, 14 proteins were differentially expressed in liver and 21 proteins in kidney. The eight proteins differentially expressed in both tissues were involved in beta-oxidation, alpha-oxidation, isoprenoid biosynthesis, amino acid metabolism, and stress response. Quantitative proteomics, clustering methods, and prediction of transcription factors, all indicated that there is a decline in protein expression at 18 months and a recovery at 24 months. CONCLUSION These results indicate that some peroxisomal proteins show a tissue-specific functional response to aging. This response is probably dependent on their differential regeneration capacity. The differentially expressed proteins could lead several cellular effects: such as alteration of fatty acid metabolism that could alert membrane protein functions, increase of the oxidative stress and contribute to decline in bile salt synthesis. The ability to detect age-related variations in the peroxisomal proteome can help in the search for reliable and valid aging biomarkers.
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Affiliation(s)
- Jia Mi
- Department of Cell and Molecular Biology, Biomedical Center, Box 596, Uppsala University, SE-751 24 Uppsala, Sweden
| | - Itsaso Garcia-Arcos
- Department of Cell and Molecular Biology, Biomedical Center, Box 596, Uppsala University, SE-751 24 Uppsala, Sweden
| | - Ruben Alvarez
- Department of Biochemistry and Biophysics, The Arrhenius Laboratories for Natural Sciences, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Susana Cristobal
- Department of Cell and Molecular Biology, Biomedical Center, Box 596, Uppsala University, SE-751 24 Uppsala, Sweden
- Department of Biochemistry and Biophysics, The Arrhenius Laboratories for Natural Sciences, Stockholm University, SE-106 91 Stockholm, Sweden
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Lee JH, Roh MR, Bang D, Lee KH. Using proteomics to identify targets of antiendothelial cell antibodies. Expert Rev Clin Immunol 2007; 3:983-91. [PMID: 20477145 DOI: 10.1586/1744666x.3.6.983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Antiendothelial cell antibodies represent a heterogeneous group of antibodies directed against a variety of antigen determinants of endothelial cells. Antibodies reacting with endothelial structures have been detected in sera from patients with autoimmune vasculitis, both primary and secondary to systemic connective tissue diseases. It may interfere with several functions and, therefore, may be a pathophysiological relevance. The analysis of the antigens recognized by antiendothelial cell antibodies showed that the antibodies are directed against a heterogeneous family of both constitutive and nonconstitutive surface endothelial proteins. Proteomics is a field of science that evaluates a large number of proteins expressed from a given cell line or organism. The technology of proteomics has been used as a method for discovering the target protein specific to a particular disease by searching for the expression or modification of the protein. Recently, progress has been made in defining the target antigens of these antibodies and proteomic technologies is one of them. This review will focus on the proteomic technologies in searching autoantigens/autoantibodies associated with disease of the endothelium.
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Affiliation(s)
- Ju Hee Lee
- Yonsei University College of Medicine, Department of Dermatology and Cutaneous Biology Research Institute, 134 Shinchon-Dong, Seodaemoon-Gu, Seoul 120-752, Korea.
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Weinreb O, Amit T, Youdim MBH. A novel approach of proteomics and transcriptomics to study the mechanism of action of the antioxidant-iron chelator green tea polyphenol (-)-epigallocatechin-3-gallate. Free Radic Biol Med 2007; 43:546-56. [PMID: 17640565 DOI: 10.1016/j.freeradbiomed.2007.05.011] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2007] [Revised: 04/25/2007] [Accepted: 05/07/2007] [Indexed: 10/23/2022]
Abstract
Previous findings suggest that the antioxidant-iron chelator green tea polyphenol (-)-epigallocatechin-3-gallate (EGCG) may have a neurorescue impact in aging and neurodegenerative diseases to retard or even reverse the accelerated rate of neuronal degeneration. The present study sought a deeper elucidation of the molecular neurorescue activity of EGCG in a progressive neurotoxic model of long-term serum deprivation of human SH-SY5Y neuroblastoma cells. In this model, proteomic analysis revealed that EGCG (0.1-1 microM) affected the expression levels of diverse proteins, including proteins related to cytoskeletal components, metabolism, heat shock, and binding. EGCG induced the levels of cytoskeletal proteins, such as beta tubulin IV and tropomyosin 3, playing a role in facilitating cell assembly. In accordance, EGCG increased the levels of the binding protein 14-3-3 gamma, involved in cytoskeletal regulation and signal transduction pathways in neurons. Additionally, EGCG decreased protein levels and mRNA expression of the beta subunit of the enzyme prolyl 4-hydroxylase, which belongs to a family of iron-oxygen sensors of hypoxia-inducible factor (HIF) prolyl hydroxylases that negatively regulate the stability and degradation of several proteins involved in cell survival and differentiation. Accordingly, EGCG decreased protein levels of two molecular chaperones that were associated with HIF regulation, the immunoglobulin-heavy-chain binding protein and the heat shock protein 90 beta. Thus, the present study sheds some light on the antioxidative-iron chelating activities of EGCG underlying its neuroprotective/neurorescue mechanism of action, further suggesting a potential neurodegenerative-modifying effect for EGCG.
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Affiliation(s)
- Orly Weinreb
- Eve Topf and USA National Parkinson Foundation Centers of Excellence for Neurodegenerative Diseases Research and Department of Pharmacology, Rappaport Family Research Institute, Technion-Faculty of Medicine, Haifa 31096, Israel
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Ricardo-Dukelow M, Kadiu I, Rozek W, Schlautman J, Persidsky Y, Ciborowski P, Kanmogne GD, Gendelman HE. HIV-1 infected monocyte-derived macrophages affect the human brain microvascular endothelial cell proteome: new insights into blood-brain barrier dysfunction for HIV-1-associated dementia. J Neuroimmunol 2007; 185:37-46. [PMID: 17321604 PMCID: PMC2212599 DOI: 10.1016/j.jneuroim.2007.01.004] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2006] [Revised: 12/26/2006] [Accepted: 01/03/2007] [Indexed: 11/17/2022]
Abstract
Blood-brain barrier (BBB) compromise and transendothelial migration of HIV-infected leukocytes into the central nervous system (CNS) underlies the neuropathogenesis of HIV-1 infection. How this occurs is incompletely understood. We used a proteomic platform integrating difference gel electrophoresis and tandem mass spectrometry peptide sequencing to determine the effects that HIV-1-infected macrophages have on human brain microvascular endothelial cell (HBMEC) protein profiles. HIV-1 infected monocyte-derived macrophages (MDM) induced the upregulation of over 200 HBMEC proteins. These included metabolic, voltage-gated ion channels, heat shock, transport, cytoskeletal, regulatory, and calcium binding proteins. Results were validated by Western blot analysis. We conclude that HIV-1-infected MDM affect the HBMEC proteome and, in this way, affect BBB dysfunction and the development of HIV-1 CNS disease.
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Affiliation(s)
- Mary Ricardo-Dukelow
- Center for Neurovirology and Neurodegenerative Disorders, Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE 68198-5215, USA
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Barciszewski J, Massino F, Clark BFC. Kinetin--a multiactive molecule. Int J Biol Macromol 2007; 40:182-92. [PMID: 16899291 DOI: 10.1016/j.ijbiomac.2006.06.024] [Citation(s) in RCA: 61] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2006] [Revised: 06/30/2006] [Accepted: 06/30/2006] [Indexed: 10/24/2022]
Abstract
Cytokinins are important adenine derivatives that serve as hormones to control many processes in plants. They were discovered as factors that promote cell division in tobacco tissue cultures and have been shown also to regulate several other developmental events. Kinetin which was isolated 50 years ago for the first time as a plant hormone, as well as other cytokinins isopentenyladenine, zeatin and benzylaminopurine induce callus (clusters of dedifferentiated plant cells) to redifferentiate into adventitious buds. Because of some similarities in the biological phenotypes of cancer and callus cells, cytokinins and especially kinetin, affect the differentiation of human cells through a common signal transduction system. Therefore, cytokinins found their way to use in molecular medicine.
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Affiliation(s)
- Jan Barciszewski
- Institute of Bioorganic Chemistry of the Polish Academy of Sciences, Noskowskiego 12, 61-704 Poznan, Poland.
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