Collagen peptides promote photoaging skin cell repair by activating the TGF-β/Smad pathway and depressing collagen degradation

2019 ◽  
Vol 10 (9) ◽  
pp. 6121-6134 ◽  
Author(s):  
Zehua Liu ◽  
Yuqi Li ◽  
Hongdong Song ◽  
Juan He ◽  
Ge Li ◽  
...  
Keyword(s):  
Skin Aging ◽  
Collagen Degradation ◽  
Collagen Hydrolysate ◽  
Smad Pathway ◽  
Cell Repair ◽  
Collagen Peptides ◽  
Skin Cell

Collagen hydrolysate has been widely used as a nutraceutical agent against skin aging and has gained increasing attention.

scholarly journals Effect of Orally Administered Collagen Peptides from Bovine Bone on Skin Aging in Chronologically Aged Mice

Nutrients ◽  
2017 ◽  
Vol 9 (11) ◽  
pp. 1209 ◽  
Author(s):  
Hongdong Song ◽  
Siqi Zhang ◽  
Ling Zhang ◽  
Bo Li
Keyword(s):  
Skin Aging ◽  
Bovine Bone ◽  
Aged Mice ◽  
Collagen Peptides

scholarly journals Anticatabolic and Anti-Inflammatory Effects of Myricetin 3-O-β-d-Galactopyranoside in UVA-Irradiated Dermal Cells via Repression of MAPK/AP-1 and Activation of TGFβ/Smad

Molecules ◽  
2020 ◽  
Vol 25 (6) ◽  
pp. 1331 ◽  
Author(s):  
Jung Hwan Oh ◽  
Fatih Karadeniz ◽  
Jung Im Lee ◽  
So Young Park ◽  
Youngwan Seo ◽  
...  
Keyword(s):  
Antioxidant Properties ◽  
Mapk Signaling ◽  
Skin Aging ◽  
In Vitro Models ◽  
Dermal Fibroblasts ◽  
Hacat Keratinocytes ◽  
Smad Pathway ◽  
Collagen Production ◽  
Induced Changes

UV irradiation is one of the main causes of extrinsic skin aging. UV-mediated skin aging, also known as photoaging, causes excessive breakdown of extracellular matrix which leads skin to lose its elasticity and strength. Several phytochemicals are known to exert anti-photoaging effects via different mechanisms, partly due to their antioxidant properties. The current study has been carried out to determine the potential anti-photoaging properties of myricetin 3-O-β-d-galacto-pyranoside (M3G), a flavonol glycoside isolated from L. tetragonum, in UVA-irradiated in vitro models; HaCaT keratinocytes and human dermal fibroblasts (HDFs). UVA-induced changes in MMP-1 and collagen production have been observed in HaCaT keratinocytes and HDFs. Further, UVA-induced activation of MAPK signaling, and pro-inflammatory cytokine production have been investigated. TGFβ/Smad pathway has also been analyzed in UVA-irradiated HDFs. Treatment with M3G reversed the UVA-induced changes in MMP-1 and collagen production both in HaCaT keratinocytes and HDFs. UVA-mediated activation of p38, ERK and JNK MAPK activation was also inhibited by M3G treatment in HaCaT keratinocytes. In HDFs, M3G was able to upregulate the TGFβ/Smad pathway activation. In addition, M3G downregulated the UVA-induced pro-inflammatory cytokines in keratinocytes and HDFs. It has been suggested that the M3G has exerted potential antiphotoaging properties in vitro, by attenuating UVA-induced changes in MMP-1 and collagen production in keratinocytes and dermal fibroblasts.

scholarly journals Difference between the biologic and chronologic age as an individualized indicator for the skincare intensity selection: skin cell profile and age difference studies

2019 ◽  
Vol 3 (1) ◽  
Author(s):  
Yurij Sukhovei ◽  
Elena Kostolomova ◽  
Irina Unger ◽  
Andrey Koptyug ◽  
Denis Kaigorodov
Keyword(s):  
Research Question ◽  
Treatment Strategies ◽  
Skin Aging ◽  
Blood Cholesterol ◽  
Patient Specific ◽  
Age Difference ◽  
Skin Cell ◽  
The Difference ◽  
Study Participants ◽  
Cell Profile

Abstract Background The present research addresses the issue of skin aging and corresponding skin treatment individualization. Particular research question was on the development of a simplified criterion supporting patient-specific decisions about the necessity and intensity of skin treatment. Basing on published results and a wide pool of our own experimental data, a hypothesis is formulated that a difference between biologic and chronologic age can be used as a powerful indicator of skin aging. Methods In the present paper, we report the results of studies with 80 volunteers between 15 and 65 years of age linking skin cell profile parameters to biologic and chronologic age. Biologic age was calculated using the empirical expressions based on the forced vital lung capacity, systolic blood pressure, urea concentration, and blood cholesterol level. Epidermis and derma cellular structures were studied using skin biopsy samples taken from the gluteal region. Results The present study supports the conclusion that biologic and chronologic age difference is changing in the progress of life. Our studies are showing that time point when calculated biologic age becomes equal to the chronologic one reflecting the onset of specific changes in the age dependencies of experimentally measured skin cell profile parameters. Thus, it is feasible that a difference between chronologic and individually assessed biologic age indeed reflects the process of skin aging. Conclusions With all reservations to the relatively small number of study participants, it seems feasible that a difference between biologic and chronologic age can be used as an indicator of skin aging. Additional research linking blood immune profile and skin topography to the difference of biologic and chronologic age (reported in the following paper) provides further support for the formulated hypotheses. So, a difference between calculated biologic age and chronologic age can be used as an individualized criterion supporting decisions on skin treatment strategies. Further research involving larger numbers of participants aimed at optimizing the expressions for calculating biologic age could lead to reliable and easily available express criterion supporting the decision for the individualized skin treatment.

scholarly journals Protection against UVB-Induced Photoaging by Nypa fruticans via Inhibition of MAPK/AP-1/MMP-1 Signaling

2020 ◽  
Vol 2020 ◽  
pp. 1-14
Author(s):  
Hee-Jeong Choi ◽  
Md Badrul Alam ◽  
Mi-Eun Baek ◽  
Yoon-Gyung Kwon ◽  
Ji-Young Lim ◽  
...  
Keyword(s):  
Radical Scavenging Activity ◽  
Radical Scavenging ◽  
Reactive Oxygen Species Generation ◽  
Skin Aging ◽  
Current Data ◽  
Collagen Degradation ◽  
Ultraviolet B ◽  
Skin Thickness ◽  
Dependent Manner ◽  
Nypa Fruticans

Ultraviolet B (UVB) irradiation is major causative factor in skin aging. The aim of the present study was to investigate the protective effect of a 50% ethanol extract from Nypa fruticans (NF50E) against UVB-induced skin aging. The results indicated that NF50E exerted potent antioxidant activity (IC50 = 17.55 ± 1.63 and 10.78 ± 0.63 μg/mL for DPPH and ABTS-radical scavenging activity, respectively) in a dose-dependent manner. High-performance liquid chromatography revealed that pengxianencin A, protocatechuic acid, catechin, chlorogenic acid, epicatechin, and kaempferol were components of the extract. In addition, the extract exhibited elastase inhibitory activity (IC50 = 17.96 ± 0.39 μg/mL). NF50E protected against UVB-induced HaCaT cell death and strongly suppressed UVB-stimulated cellular reactive oxygen species generation without cellular toxicity. Moreover, topical application of NF50E mitigated UVB-induced photoaging lesions including skin erythema and skin thickness in BALB/C mice. NF50E treatment inhibited UVB-induced collagen degradation as well as MMP-1 and IL-1β expressions and significantly stimulated SIRT1 expression. Furthermore, the extract treatment markedly suppressed the activation of NF-κB and AP-1 (p-c-Jun) by deactivating the p38 and JNK proteins. Taken together, current data suggest that NF50E exhibits potent antioxidant potential and protection against photoaging by attenuating MMP-1 activity and collagen degradation possibly through the downregulation of MAPK/NF-κB/AP-1 signaling and SIRT1 activation.

scholarly journals Antiphotoaging Effects of 3,5-Dicaffeoyl-epi-quinic Acid via Inhibition of Matrix Metalloproteinases in UVB-Irradiated Human Keratinocytes

2020 ◽  
Vol 2020 ◽  
pp. 1-10 ◽  
Author(s):  
Jung Hwan Oh ◽  
Jung Im Lee ◽  
Fatih Karadeniz ◽  
So Young Park ◽  
Youngwan Seo ◽  
...  
Keyword(s):  
Matrix Metalloproteinases ◽  
Quinic Acid ◽  
Human Keratinocytes ◽  
Skin Aging ◽  
Collagen Degradation ◽  
Premature Aging ◽  
Type I ◽  
Dependent Manner ◽  
Protective Effects ◽  
Uvb Irradiation

UVB exposure is one of the causes of several skin complications including but not limited to premature aging, wrinkle formation, and hyperpigmentation. UV-induced skin aging is called photoaging, and oxidative stress-induced overexpression of matrix metalloproteinases (MMPs) is the main reason behind the photoaging-mediated collagen degradation. Natural origin inhibitors of MMPs are regarded as a promising approach to prevent or treat photoaging. Therefore, the present study investigated the protective effects of 3,5-dicaffeoyl-epi-quinic acid (DCEQA) in human HaCaT keratinocytes against UVB irradiation-related dysregulation of MMPs. Changes in the mRNA and protein expression and release of MMP-1, -2, and -9 were observed after UVB irradiation with or without DCEQA treatment. In addition, the effect of DCEQA on the activation of p38, JNK, and ERK MAPKs was analyzed. Treatment of UVB-irradiated HaCaT cells with 10 μM DCEQA significantly suppressed the overexpression of both mRNA and protein of MMP-1, -2, and -9 while slightly increasing the diminished type I procollagen production. UVB-induced activation of MAPKs was also ameliorated by DCEQA treatment in a dose-dependent manner. Results indicated that DCEQA treatment was able to protect keratinocytes from UVB-induced photoaging by inhibiting the stimulated production of MMPs and the related decrease in collagen production. It was suggested that DCEQA downregulated the collagen degradation via inhibition of MAPK activation, which resulted in decreased MMP activity.

SHORT PEPTIDES: REGULATION OF SKIN FUNCTION DURING AGING

2020 ◽  
pp. 46-54
Author(s):  
В. Х. Хавинсон ◽  
Н. С. Линькова ◽  
А. С. Дятлова ◽  
Е. О. Гутоп ◽  
О. А. Орлова
Keyword(s):  
Cell Proliferation ◽  
Growth Factor ◽  
Stratum Corneum ◽  
Functional Activity ◽  
Skin Fibroblasts ◽  
Short Peptides ◽  
Collagen Peptides ◽  
Skin Cell ◽  
Skin Function

Для поддержания функций кожи при старении применяют короткие пептиды, которые могут проникать через интактный роговой слой эпидермиса и оказывать влияние на клетки дермы. Короткие пептиды являются веществами, участвующими в естественных метаболических реакциях клеток, многие из них обладают геропротекторными свойствами. В обзоре рассмотрены основные группы пептидов-регуляторов функций фибробластов кожи: матрикины, карнозин, «коллагеновые» пептиды, аналоги факторов роста и цитокинов, дефенсины, иммунопротекторные пептиды и полифункциональные пептиды. Полифункциональные пептиды ( AcSDKP, KED, AEDG, AED ) обладают геропротекторными свойствами, замедляют апоптоз и стимулируют пролиферацию клеток кожи, повышают функциональную активность фибробластов кожи, нормализуют гомеостаз внеклеточного матрикса, являются антиоксидантами, иммунопротекторами, могут активировать микроциркуляцию в дерме. Пептидная регуляция функций кожи при старении является быстро развивающейся областью молекулярной геронтологии. Short peptides are applied for supporting skin function during ageing, because they can permeate the intact stratum corneum of the epidermis and affect the cells of the dermis. Short peptides are part of natural metabolism of cells and many of them have geroprotective properties. In the review we are considering the base sorts of peptides that are used for normalized skin fibroblasts function: matrikines, carnosine, collagen peptides, cytokine and growth factor analogs, defensins, immunoprotective peptides and polyfunctional peptides. Polyfunctional peptides ( AcSDKP, KED, AEDG, AED ) have geroprotective properties, slow apoptosis and stimulate skin cell proliferation, also increase functional activity of skin fibroblasts, normalize intracellular matrix hemostasis. Polyfunctional peptides are the antioxidants and immunoprotectors and can activate microcirculation in dermis. Peptide regulation of skin function during ageing are the fast-developing and prospective area in molecular gerontology.

Alteration of the TGF-β/SMAD pathway in intrinsically and UV-induced skin aging

2005 ◽  
Vol 126 (5) ◽  
pp. 560-567 ◽  
Author(s):  
Kwang-Ho Han ◽  
Hye-Ryung Choi ◽  
Chong-Hyun Won ◽  
Jin-Ho Chung ◽  
Kwang-Hyun Cho ◽  
...  
Keyword(s):  
Skin Aging ◽  
Smad Pathway

scholarly journals Eight Collagen Peptides from Hydrolysate Fraction of Spanish Mackerel Skins: Isolation, Identification, and In Vitro Antioxidant Activity Evaluation

Marine Drugs ◽  
2019 ◽  
Vol 17 (4) ◽  
pp. 224 ◽  
Author(s):  
Jing-Bo Zhang ◽  
Yu-Qin Zhao ◽  
Yu-Mei Wang ◽  
Chang-Feng Chi ◽  
Bin Wang
Keyword(s):  
Superoxide Anion ◽  
Radical Scavenging ◽  
Reducing Power ◽  
Industrial Applications ◽  
Collagen Hydrolysate ◽  
Spanish Mackerel ◽  
Collagen Peptides ◽  
Inhibit Lipid Peroxidation ◽  
In Vitro Antioxidant Activity

A previous report indicated that collagen hydrolysate fraction (F7) from Spanish mackerel (Scomberomorous niphonius) skins showed high reducing power and radical scavenging activities on 2,2-Diphenyl-1-picrylhydrazyl (DPPH) (EC50 value of 1.57 mg/mL) and hydroxyl (EC50 value of 1.20 mg/mL). In this work, eight peptides were isolated from F7 and identified as Gly-Pro-Tyr (GPY, 335.31 Da), Gly-Pro-Thr-Gly-Glu (GPTGE, 459.47 Da), Pro-Phe-Gly-Pro-Asp (PFGPD, 531.52 Da), Gly-Pro-Thr-Gly-Ala-Lys (GPTGAKG, 586.65 Da), Pro-Tyr-Gly-Ala-Lys-Gly (PYGAKG, 591.69 Da), Gly-Ala-Thr-Gly-Pro-Gln-Gly (GATGPQG, 586.61 Da), Gly-Pro-Phe-Gly-Pro-Met (GPFGPM, 604.73 Da), and Tyr-Gly-Pro-Met (YGPM, 466.50 Da), respectively. Among them, PFGPD, PYGAKG, and YGPM exhibited strong radical scavenging activities on DPPH (EC50 values of 0.80, 3.02, and 0.72 mg/mL for PFGPD, PYGAKG, and YGPM, respectively), hydroxyl (EC50 values of 0.81, 0.66, and 0.88 mg/mL for PFGPD, PYGAKG, and YGPM, respectively), superoxide anion (EC50 values of 0.91, 0.80, and 0.73 mg/mL for PFGPD, PYGAKG, and YGPM, respectively), and 2,2′-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) (ABTS) cation (EC50 values of 0.86, 1.07, and 0.82 mg/mL for PFGPD, PYGAKG, and YGPM, respectively) in a positive concentration–activity relationship. Furthermore, PFGPD, PYGAKG, and YGPM could effectively reduce Fe3+ to Fe2+ and inhibit lipid peroxidation. Hence, eight collagen peptides from hydrolysate of Spanish mackerel skins might be served as antioxidant candidates for various industrial applications.

scholarly journals Stem Cell Extracellular Vesicles in Skin Repair

2018 ◽  
Vol 6 (1) ◽  
pp. 4 ◽  
Author(s):  
Andrea da Fonseca Ferreira ◽  
Dawidson Assis Gomes
Keyword(s):  
Stem Cell ◽  
Extracellular Vesicles ◽  
Large Scale ◽  
Therapeutic Potential ◽  
Skin Aging ◽  
Skin Wound ◽  
Scale Production ◽  
Skin Wound Healing ◽  
Skin Cell ◽  
Large Scale Production

Stem cell extracellular vesicles (EVs) have been widely studied because of their excellent therapeutic potential. EVs from different types of stem cell can improve vascularization as well as aid in the treatment of cancer and neurodegenerative diseases. The skin is a complex organ that is susceptible to various types of injury. Strategies designed to restore epithelial tissues’ integrity with stem cell EVs have shown promising results. Different populations of stem cell EVs are able to control inflammation, accelerate skin cell migration and proliferation, control wound scarring, improve angiogenesis, and even ameliorate signs of skin aging. However, large-scale production of such stem cell EVs for human therapy is still a challenge. This review focuses on recent studies that explore the potential of stem cell EVs in skin wound healing and skin rejuvenation, as well as challenges of their use in therapy.

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