1
|
Łuczaj W, Gęgotek A, Conde T, Domingues MR, Domingues P, Skrzydlewska E. Lipidomic assessment of the impact of Nannochloropsis oceanica microalga lipid extract on human skin keratinocytes exposed to chronic UVB radiation. Sci Rep 2023; 13:22302. [PMID: 38102403 PMCID: PMC10724133 DOI: 10.1038/s41598-023-49827-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Accepted: 12/12/2023] [Indexed: 12/17/2023] Open
Abstract
Considerable attention has been devoted to investigating the biological activity of microalgal extracts, highlighting their capacity to modulate cellular metabolism. This study aimed to assess the impact of Nannochloropsis oceanica lipid extract on the phospholipid profile of human keratinocytes subjected to UVB radiation. The outcomes revealed that treatment of keratinocytes with the lipid extract from microalgae led to a reduction in sphingomyelin (SM) levels, with a more pronounced effect observed in UVB-irradiated cells. Concomitantly, there was a significant upregulation of ceramides CER[NDS] and CER[NS], along with increased sphingomyelinase activity. Pathway analysis further confirmed that SM metabolism was the most significantly affected pathway in both non-irradiated and UVB-irradiated keratinocytes treated with the microalgal lipid extract. Additionally, the elevation in alkylacylPE (PEo) and diacylPE (PE) species content observed in UVB-irradiated keratinocytes following treatment with the microalgal extract suggested the potential induction of pro-survival mechanisms through autophagy in these cells. Conversely, a noteworthy reduction in LPC content in UVB-irradiated keratinocytes treated with the extract, indicated the anti-inflammatory properties of the lipid extract obtained from microalgae. However, to fully comprehend the observed alterations in the phospholipid profile of UVB-irradiated keratinocytes, further investigations are warranted to identify the specific fraction of compounds responsible for the activity of the Nannochloropsis oceanica extract.
Collapse
Affiliation(s)
- Wojciech Łuczaj
- Department of Analytical Chemistry, Medical University of Bialystok, Mickiewicza 2D, 15-222, Bialystok, Poland.
| | - Agnieszka Gęgotek
- Department of Analytical Chemistry, Medical University of Bialystok, Mickiewicza 2D, 15-222, Bialystok, Poland
| | - Tiago Conde
- Mass Spectrometry Centre, LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Santiago University Campus, 3810-193, Aveiro, Portugal
- CESAM-Centre for Environmental and Marine Studies, Department of Chemistry, University of Aveiro, Santiago University Campus, 3810-193, Aveiro, Portugal
| | - M Rosário Domingues
- Mass Spectrometry Centre, LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Santiago University Campus, 3810-193, Aveiro, Portugal
- CESAM-Centre for Environmental and Marine Studies, Department of Chemistry, University of Aveiro, Santiago University Campus, 3810-193, Aveiro, Portugal
| | - Pedro Domingues
- Mass Spectrometry Centre, LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Santiago University Campus, 3810-193, Aveiro, Portugal
| | - Elżbieta Skrzydlewska
- Department of Analytical Chemistry, Medical University of Bialystok, Mickiewicza 2D, 15-222, Bialystok, Poland
| |
Collapse
|
2
|
Duan Y, Xiang Y, Chu J, Lin X, He M, Zhang C, Sun S, Huang L. Handelin Reduces Ultraviolet A-Induced Photoaging by Inhibiting Reactive Oxygen Species Generation and Enhancing Autophagy. TOHOKU J EXP MED 2023; 259:189-198. [PMID: 36476587 DOI: 10.1620/tjem.2022.j108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Photoaging is mainly caused by the exposure of the skin to ultraviolet (UV) radiation. Among them, damage to human dermal fibroblast (HDF) cells caused by ultraviolet A (UVA) is the main cause of skin aging. Researchers have dedicated to identifying natural compounds from plants to fight against UV radiation-induced photoaging. We previously found that extracts from wild chrysanthemum could prevent acute damage and photoaging induced by UV irradiation. As one of the most abundant ingredients in wild chrysanthemum extract, handelin was hypothesized to have the potential to prevent UVA-induced photoaging of skin fibroblast. In the present study, we report the great potential of handelin in combating UVA-induced photoaging of fibroblasts. We firstly demonstrated that handelin was safe for skin fibroblast as high as a concentration of 0.0125 μM, showing no toxicity on the cells and improved cell viability. Furthermore, handelin can reduce UVA-induced cellular senescence, indicated by a reduced proportion of senescence-associated beta-galactose positive cells and the expression of P21. We then verified that handelin pretreatment markedly attenuated the production of reactive oxygen species (ROS) generation after UVA irradiation. Meanwhile, we found that handelin enhances autophagy after UVA irradiation, and autophagy is involved in the quality control of intracellular proteins after UV-induced damage (partially indirectly via ROS). Therefore, these results suggest that handelin has a very high potential as an effective ingredient against UVA-induced skin aging. Moreover, this provides an important basis for further research on the photoprotective mechanism of handelin.
Collapse
Affiliation(s)
- Yi Duan
- Clinical Medical College, Dali University
| | - Yang Xiang
- Key Laboratory of Human Aging in Jiangxi Province, Human Aging Research Institute, Nanchang University
| | - Jimin Chu
- Clinical Medical College, Dali University
| | | | - Miao He
- College of Pharmacy and Chemistry, Dali University
| | | | - Sujiao Sun
- Medical Cosmetology Teaching and Research Section, Dali University School of Clinical Medicine
| | - Ling Huang
- Department of Dermatology, The First Affiliated Hospital of Dali University
| |
Collapse
|
3
|
Wang L, Yang K, Jing R, Zhao W, Guo K, Hu Z, Liu G, Xu N, Zhao J, Lin L, Gao S. Protective effect of Saussurea involucrata polysaccharide against skin dryness induced by ultraviolet radiation. Front Pharmacol 2023; 14:1089537. [PMID: 36733502 PMCID: PMC9887146 DOI: 10.3389/fphar.2023.1089537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 01/03/2023] [Indexed: 01/18/2023] Open
Abstract
Background: Exposure to ultraviolet B (UVB) radiation can damage the epidermis barrier function and eventually result in skin dryness. At present, little work is being devoted to skin dryness. Searching for active ingredients that can protect the skin against UVB-induced dryness will have scientific significance. Methods: Saussurea involucrata polysaccharide (SIP) has been shown to have significant antioxidant and anti-photodamage effects on the skin following UVB irradiation. To evaluate the effect of SIP on UVB-induced skin dryness ex vivo, SIP-containing hydrogel was applied in a mouse model following exposure to UVB and the levels of histopathological changes, DNA damage, inflammation, keratinocyte differentiation, lipid content were then evaluated. The underlying mechanisms of SIP to protect the cells against UVB induced-dryness were determined in HaCaT cells. Results: SIP was found to lower UVB-induced oxidative stress and DNA damage while increasing keratinocyte differentiation and lipid production. Western blot analysis of UVB-irradiated skin tissue revealed a significant increase in peroxisome proliferator-activated receptor-α (PPAR-α) levels, indicating that the underlying mechanism may be related to PPAR-α signaling pathway activation. Conclusions: By activating the PPAR-α pathway, SIP could alleviate UVB-induced oxidative stress and inhibit the inflammatory response, regulate proliferation and differentiation of keratinocytes, and mitigate lipid synthesis disorder. These findings could provide candidate active ingredients with relatively clear mechanistic actions for the development of skin sunscreen moisturizers.
Collapse
Affiliation(s)
- Lusheng Wang
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, China
| | - Kaiye Yang
- Infinitus (China) Company Ltd., Guangzhou, China
| | - Rongrong Jing
- College of Life and Environmental Sciences, Wenzhou University, Wenzhou, China
| | - Wengang Zhao
- College of Life and Environmental Sciences, Wenzhou University, Wenzhou, China
| | - Keke Guo
- College of Life and Environmental Sciences, Wenzhou University, Wenzhou, China
| | - Zhenlin Hu
- College of Life and Environmental Sciences, Wenzhou University, Wenzhou, China
| | | | - Nuo Xu
- College of Life and Environmental Sciences, Wenzhou University, Wenzhou, China
| | - Jungang Zhao
- Chevidence Lab of Child and Adolescent Health, Children’s Hospital of Chongqing Medical University, Chongqing, China,*Correspondence: Jungang Zhao, ; Li Lin, ; Shuang Gao,
| | - Li Lin
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, China,*Correspondence: Jungang Zhao, ; Li Lin, ; Shuang Gao,
| | - Shuang Gao
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, China,*Correspondence: Jungang Zhao, ; Li Lin, ; Shuang Gao,
| |
Collapse
|
4
|
Wilkinson EL, Ashton L, Kerns JG, Allinson SL, Mort RL. Fingerprinting of skin cells by live cell Raman spectroscopy reveals melanoma cell heterogeneity and cell-type-specific responses to UVR. Exp Dermatol 2022; 31:1543-1553. [PMID: 35700136 PMCID: PMC9796253 DOI: 10.1111/exd.14625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 05/26/2022] [Accepted: 06/09/2022] [Indexed: 01/01/2023]
Abstract
Raman spectroscopy is an emerging dermatological technique with the potential to discriminate biochemically between cell types in a label-free and non-invasive manner. Here, we use live single-cell Raman spectroscopy and principal component analysis (PCA) to fingerprint mouse melanoblasts, melanocytes, keratinocytes and melanoma cells. We show the differences in their spectra are attributable to biomarkers in the melanin biosynthesis pathway and that melanoma cells are a heterogeneous population that sit on a trajectory between undifferentiated melanoblasts and differentiated melanocytes. We demonstrate the utility of Raman spectroscopy as a highly sensitive tool to probe the melanin biosynthesis pathway and its immediate response to ultraviolet (UV) irradiation revealing previously undescribed opposing responses to UVA and UVB irradiation in melanocytes. Finally, we identify melanocyte-specific accumulation of β-carotene correlated with a stabilisation of the UVR response in lipids and proteins consistent with a β-carotene-mediated photoprotective mechanism. In summary, our data show that Raman spectroscopy can be used to determine the differentiation status of cells of the melanocyte lineage and describe the immediate and temporal biochemical changes associated with UV exposure which differ depending on cell type, differentiation status and competence to synthesise melanin. Our work uniquely applies Raman spectroscopy to discriminate between cell types by biological function and differentiation status while they are growing in culture. In doing so, we demonstrate for the first time its utility as a tool with which to probe the melanin biosynthesis pathway.
Collapse
Affiliation(s)
- Emma L. Wilkinson
- Division of Biomedical and Life Sciences, Faculty of Health and MedicineLancaster UniversityLancasterUK
| | - Lorna Ashton
- Department of ChemistryLancaster UniversityLancasterUK
| | - Jemma G. Kerns
- Lancaster Medical School, Faculty of Health and MedicineLancaster UniversityLancasterUK
| | - Sarah L. Allinson
- Division of Biomedical and Life Sciences, Faculty of Health and MedicineLancaster UniversityLancasterUK
| | - Richard L. Mort
- Division of Biomedical and Life Sciences, Faculty of Health and MedicineLancaster UniversityLancasterUK
| |
Collapse
|
5
|
Yang J, Zeng J, Lu J. Mechanisms of ultraviolet-induced melasma formation: A review. J Dermatol 2022; 49:1201-1210. [PMID: 35946331 DOI: 10.1111/1346-8138.16542] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Revised: 07/03/2022] [Accepted: 07/26/2022] [Indexed: 11/30/2022]
Abstract
Melasma, a pigmentation disorder, commonly occurs in exposed skin areas and can be attributed to several factors. Ultraviolet radiation (UVR) is the primary factor that induces and aggravates melasma. Considering gene expression, exposed skin areas experience abnormal gene expression, involving melanin metabolism, oxidative stress, impaired skin barrier function, and abnormal composition of nerve factors. From a histological perspective, UVR can cause basement membrane collapse, melanocyte sinking, and disorders of skin lipid metabolism. Emerging therapies have focused on these pathological alterations in melasma, including platelet-rich plasma, mesotherapy, and phytochemicals. Understanding the role of UVR in the development of melasma can facilitate early prevention and highlight the future direction of melasma treatment.
Collapse
Affiliation(s)
- Jian Yang
- The Third Xiangya Hospital, Central South University, Changsha, China
| | - Jinrong Zeng
- The Third Xiangya Hospital, Central South University, Changsha, China
| | - Jianyun Lu
- The Third Xiangya Hospital, Central South University, Changsha, China
| |
Collapse
|
6
|
Suzuki A, Urano Y, Ishida T, Noguchi N. Different functions of vitamin E homologues in the various types of cell death induced by oxysterols. Free Radic Biol Med 2021; 176:356-365. [PMID: 34648906 DOI: 10.1016/j.freeradbiomed.2021.10.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 10/06/2021] [Accepted: 10/08/2021] [Indexed: 01/18/2023]
Abstract
24(S)-Hydroxycholesterol (24S-OHC) and 25-hydroxycholesterol (25-OHC) are produced by cholesterol 24-hydroxylase and cholesterol 25-hydroxylase, respectively. The purpose of the present study was to determine the type of cell death induced by these oxysterols in neuronal cells, hepatic cells, and keratinocytes, and to elucidate the inhibitory effect of vitamin E homologues on various types of cell death. In human neuronal cells (SH-SY5Y cells), 24S-OHC and 25-OHC caused a cell death that was independent of caspase activation. We reported previously that the esterification of 24S-OHC by acyl-CoA:cholesterol acyltransferase 1 (ACAT1) and the resulting formation of a lipid droplet (LD)-like structure are responsible for the 24S-OHC-induced neuronal cell death. Here, we found that 25-OHC also induced ACAT1-mediated 25-OHC esterification and LD formation in neuronal cells. 25-OHC-induced cell death was inhibited by α-tocopherol (α-Toc) but not by α-tocotrienol (α-Toc3), as observed for 24S-OHC-induced cell death in SH-SY5Y cells. In human hepatic cells (HepG2 cells), these oxysterols caused a cell death that was caspase- and oxysterol-esterification-independent. This cell death was suppressed by both α-Toc and α-Toc3, suggesting the involvement of free-radical-mediated lipid peroxidation in the cell death induced by these oxysterols in hepatic cells. In human keratinocytes (HaCaT cells), these oxysterols caused a caspase-dependent but oxysterol-esterification-independent cell death that was inhibited by α-Toc but not by α-Toc3. These results suggest that α-Toc and α-Toc3 act as radical-scavenging antioxidants against oxysterol-induced cell death in the same way in hepatic cells, whereas their behavior is different in inhibition of cell death in neuronal cells and keratinocytes. Collectively, these results demonstrated that 24S-OHC and 25-OHC induced the same type of cell death in each of the cell types examined, and that α-Toc and α-Toc3 exerted different effects, depending on the type of cell death.
Collapse
Affiliation(s)
- Atsuki Suzuki
- Systems Life Sciences Laboratory, Graduate School of Life and Medical Sciences, Doshisha University, 1-3 Miyakodani, Tatara, Kyotanabe, Kyoto, 610-0394, Japan
| | - Yasuomi Urano
- Systems Life Sciences Laboratory, Graduate School of Life and Medical Sciences, Doshisha University, 1-3 Miyakodani, Tatara, Kyotanabe, Kyoto, 610-0394, Japan
| | - Tomohisa Ishida
- Systems Life Sciences Laboratory, Graduate School of Life and Medical Sciences, Doshisha University, 1-3 Miyakodani, Tatara, Kyotanabe, Kyoto, 610-0394, Japan
| | - Noriko Noguchi
- Systems Life Sciences Laboratory, Graduate School of Life and Medical Sciences, Doshisha University, 1-3 Miyakodani, Tatara, Kyotanabe, Kyoto, 610-0394, Japan.
| |
Collapse
|
7
|
Xu J, Lu H, Luo H, Hu Y, Chen Y, Xie B, Du X, Hua Y, Song X. Tape stripping and lipidomics reveal skin surface lipid abnormity in female melasma. Pigment Cell Melanoma Res 2021; 34:1105-1111. [PMID: 33974351 DOI: 10.1111/pcmr.12984] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 03/31/2021] [Accepted: 04/29/2021] [Indexed: 12/23/2022]
Abstract
The skin barrier of melasma is involved in the pathogenesis of melasma. Previous studies have shown that there are differences in the expression of epidermal lipid genes in melasma, but little is known about the epidermis lipid composition of melasma. Compared with the non-lesional skin, the content of total lipids, phosphatidic acid, phosphatidylserine, and ceramide (Cer) increased significantly in the lesional skin. Multivariate data analysis indicated that 40 individual Cer lipid species were responsible for the discrimination. In terms of acyl chain length in Cer, the expressions of very long chain (VLC) (C20-C26) and ultra-long chain (ULC) (>C26) increased significantly in the lesional skin. However, Cer[AH] had negative correlations with the activation of melanocytes in the lesional skin. Some lipid species had lower expression in lesional skin with high activation of melanocytes, as well as the high darkness. The epidermal thickness of lesional skin was higher compared with the non-lesional skin. These results suggest that Cer increased significantly in the lesional skin of melasma, possibly as a compensatory mechanism to maintain skin barrier function. Between different groups of darkness and activation of melanocytes, the change of ceramides might have correlation with the pigmentation progress of melasma.
Collapse
Affiliation(s)
- Jinhui Xu
- Department of Dermatology, Hangzhou Third People's Hospital, Zhejiang Chinese Medical University, Hangzhou, China
| | - Haojie Lu
- Department of Dermatology, Hangzhou Third People's Hospital, Zhejiang Chinese Medical University, Hangzhou, China
| | - Haixin Luo
- Department of Dermatology, Hangzhou Third People's Hospital, Zhejiang Chinese Medical University, Hangzhou, China
| | - Yebei Hu
- Department of Dermatology, Hangzhou Third People's Hospital, Zhejiang Chinese Medical University, Hangzhou, China
| | - Yi Chen
- Department of Dermatology, Hangzhou Third People's Hospital, Zhejiang Chinese Medical University, Hangzhou, China
| | - Bo Xie
- Department of Dermatology, Hangzhou Third People's Hospital, Affiliated Hangzhou Dermatology Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Xiaohang Du
- Department of Dermatology, Hangzhou Third People's Hospital, Affiliated Hangzhou Dermatology Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - You Hua
- Department of Dermatology, Hangzhou Third People's Hospital, Affiliated Hangzhou Dermatology Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Xiuzu Song
- Department of Dermatology, Hangzhou Third People's Hospital, Affiliated Hangzhou Dermatology Hospital of Zhejiang University School of Medicine, Hangzhou, China
| |
Collapse
|
8
|
Szachowicz-Petelska B, Łuczaj W, Wroński A, Jastrząb A, Dobrzyńska I. The Differential Effect of Cannabidiol on the Composition and Physicochemical Properties of Keratinocyte and Fibroblast Membranes from Psoriatic Patients and Healthy People. Membranes (Basel) 2021; 11:111. [PMID: 33557204 DOI: 10.3390/membranes11020111] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Revised: 01/29/2021] [Accepted: 02/01/2021] [Indexed: 01/23/2023]
Abstract
The development of psoriasis is accompanied by oxidative stress, which can modify the components of skin cells. Therefore, the aim of this study was to evaluate the effect of cannabidiol (CBD), an antioxidant and anti-inflammatory phytocannabinoid, on the composition and physicochemical properties of the membranes of healthy and psoriatic keratinocytes and fibroblasts exposed to ultraviolet A (UVA) and ultraviolet B (UVB) radiation. In psoriasis-altered cells, decreased levels of the main groups of phospholipids and increased levels of sialic acid and malondialdehyde (MDA), a lipid peroxidation product, as well as negative charge of cell membranes compared to non-diseased cells, were found. On the other hand, UVA/B radiation increased the levels of phospholipids and MDA in both groups of cells. Moreover, psoriatic cells were characterized by lower levels of sialic acid and negative charge of cell membranes, while non-diseased cells showed the opposite response. The CBD treatment intensified some of the changes (phospholipid content and membrane charge) caused by the radiation of psoriatic cells, while it prevented these changes in the cells of healthy people. The results of this study indicate that CBD can prevent structural and functional changes to the membranes of healthy skin cells during phototherapy for psoriasis.
Collapse
|
9
|
Łuczaj W, Dobrzyńska I, Wroński A, Domingues MR, Domingues P, Skrzydlewska E. Cannabidiol-Mediated Changes to the Phospholipid Profile of UVB-Irradiated Keratinocytes from Psoriatic Patients. Int J Mol Sci 2020; 21:ijms21186592. [PMID: 32916896 PMCID: PMC7555222 DOI: 10.3390/ijms21186592] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 09/07/2020] [Accepted: 09/08/2020] [Indexed: 12/15/2022] Open
Abstract
UVB phototherapy is treatment for psoriasis, which increases phospholipid oxidative modifications in the cell membrane of the skin. Therefore, we carried out lipidomic analysis on the keratinocytes of healthy individuals and patients with psoriasis irradiated with UVB and treated with cannabidiol (CBD), phytocannabinoid with antioxidant and anti-inflammatory properties. Our results showed that, in psoriatic keratinocytes phosphatidylcholine (PC), phosphatidylinositol (PI), phosphatidylserine (PS), and ether-linked phosphoethanolamine (PEo), were downregulated, while SM (d41:2) was upregulated. These changes were accompanied by an increase in negative zeta potential, which indicates translocation of PS to the outer layer of the membrane. CBD treatment of psoriatic keratinocytes led to downregulation of PC, PS, and upregulation of certain PEo and an SM species, SM (d42:2), and the zeta potential. However, UVB irradiation of psoriatic keratinocytes resulted in upregulation of PC, PC plasmalogens (PCp), PEo, and a decrease in the negative zeta potential. The exposure of UVB-irradiated cells to CBD led to a decrease in the level of SM (d42:2). Our results suggest that CBD induces pro-apoptotic mechanisms in psoriatic keratinocytes while simultaneously improving the antioxidant properties and preventing the loss of transepidermal water of keratinocytes of patients irradiated with UVB. Thus, CBD has potential therapeutic value in the treatment of psoriasis.
Collapse
Affiliation(s)
- Wojciech Łuczaj
- Department of Analytical Chemistry, Medical University of Bialystok, Mickiewicza 2d, 15-222 Bialystok, Poland;
- Correspondence: ; Tel.: +48-857485882
| | - Izabela Dobrzyńska
- Faculty of Chemistry, University in Białystok, Ciołkowskiego 1K, 15-245 Białystok, Poland;
| | - Adam Wroński
- Dermatological Specialized Center “DERMAL” NZOZ in Bialystok, 15-453 Bialystok, Poland;
| | - M Rosário Domingues
- Department of Chemistry, Mass Spectrometry Center, LAQV, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal; (MR.D.); (P.D.)
- Department of Chemistry &, CESAM, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Pedro Domingues
- Department of Chemistry, Mass Spectrometry Center, LAQV, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal; (MR.D.); (P.D.)
| | - Elżbieta Skrzydlewska
- Department of Analytical Chemistry, Medical University of Bialystok, Mickiewicza 2d, 15-222 Bialystok, Poland;
| |
Collapse
|
10
|
Hernandez JA, Castro VL, Reyes-Nava N, Montes LP, Quintana AM. Mutations in the zebrafish hmgcs1 gene reveal a novel function for isoprenoids during red blood cell development. Blood Adv 2019; 3:1244-54. [PMID: 30987969 DOI: 10.1182/bloodadvances.2018024539] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Accepted: 03/09/2019] [Indexed: 12/22/2022] Open
Abstract
Erythropoiesis is the process by which new red blood cells (RBCs) are formed and defects in this process can lead to anemia or thalassemia. The GATA1 transcription factor is an established mediator of RBC development. However, the upstream mechanisms that regulate the expression of GATA1 are not completely characterized. Cholesterol is 1 potential upstream mediator of GATA1 expression because previously published studies suggest that defects in cholesterol synthesis disrupt RBC differentiation. Here we characterize RBC development in a zebrafish harboring a single missense mutation in the hmgcs1 gene (Vu57 allele). hmgcs1 encodes the first enzyme in the cholesterol synthesis pathway and mutation of hmgcs1 inhibits cholesterol synthesis. We analyzed the number of RBCs in hmgcs1 mutants and their wild-type siblings. Mutation of hmgcs1 resulted in a decrease in the number of mature RBCs, which coincides with reduced gata1a expression. We combined these experiments with pharmacological inhibition and confirmed that cholesterol and isoprenoid synthesis are essential for RBC differentiation, but that gata1a expression is isoprenoid dependent. Collectively, our results reveal 2 novel upstream regulators of RBC development and suggest that appropriate cholesterol homeostasis is critical for primitive erythropoiesis.
Collapse
|
11
|
Kim D, Hu R, Fan Y, Xu Y, Park HJ, Lee SK. Photoprotective effects of 2S,3R-6-methoxycarbonylgallocatechin isolated from Anhua dark tea on UVB-induced inflammatory responses in human keratinocytes. Journal of Photochemistry and Photobiology B: Biology 2020; 202:111704. [DOI: 10.1016/j.jphotobiol.2019.111704] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Revised: 10/08/2019] [Accepted: 11/11/2019] [Indexed: 11/22/2022]
|
12
|
Wang M, Charareh P, Lei X, Zhong JL. Autophagy: Multiple Mechanisms to Protect Skin from Ultraviolet Radiation-Driven Photoaging. Oxid Med Cell Longev 2019; 2019:8135985. [PMID: 31915514 DOI: 10.1155/2019/8135985] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Accepted: 11/26/2019] [Indexed: 01/07/2023]
Abstract
Autophagy is an essential cellular process that maintains balanced cell life. Restriction in autophagy may induce degenerative changes in humans. Natural or pathological aging of susceptible tissues has been linked with reduced autophagic activity. Skin photoaging is an example of such pathological condition caused by ambient solar UV radiation exposure. The UV-induced production of reaction oxygen species (ROS) has been linked to the promotion and progression of the photoaging process in exposed tissues. Accordingly, it has been suggested that autophagy is capable of delaying the skin photoaging process caused by solar ultraviolet (UV), although the underlying mechanism is still under debate. This review highlights several plausible mechanisms by which UV-induced ROS activates the cellular signaling pathways and modulates the autophagy. More specifically, the UV-mediated regulation of autophagy and age-related transcription factors is discussed to pinpoint the contribution of autophagy to antiphotoaging effects in the skin. The outcome of this review will provide insights into design intervention strategies for delaying the phenomenon of sunlight-induced photodamage, photoaging, and other aging-related chronic diseases based on factors that activate the autophagy process in the skin.
Collapse
|
13
|
Abstract
Ceramides, members of sphingolipid family, are not only the building blocks of epidermal barrier structure, but also bioactive metabolites involved in epidermal self-renewal and immune regulation. Hence, abnormal ceramide expression profile is recognized to defect extracellular lipid organization, disturb epidermal self-renewal, exacerbate skin immune response and actively participate in progression of several inflammatory dermatoses, exemplifying by psoriasis and atopic dermatitis. Here, we discuss recent advances in understanding skin ceramides and their regulatory roles in skin homeostasis and pathogenic roles of altered ceramide metabolism in inflammatory skin diseases. These insights provide new opportunities for therapeutic intervention in inflammatory dermatoses.
Collapse
Affiliation(s)
- Qingyang Li
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Hui Fang
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Erle Dang
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Gang Wang
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, China.
| |
Collapse
|
14
|
Jamadagni P, Patten SA. 25-hydroxycholesterol impairs neuronal and muscular development in zebrafish. Neurotoxicology 2019; 75:14-23. [PMID: 31449834 DOI: 10.1016/j.neuro.2019.08.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 08/16/2019] [Accepted: 08/16/2019] [Indexed: 12/12/2022]
Abstract
Oxysterols have essential effects on brain homeostasis and their levels are often altered in neurodegenerative and neuroinflammatory diseases. Several studies have demonstrated the cytotoxic effects of 25-HC on different cell lines, however, not much is known about its effects on neurons in vivo. In this study, we examined the effects of 25-HC exposure on the nervous system development in the zebrafish. We showed that survival rate of zebrafish embryos/larvae is significantly decreased at doses of 25-HC above 40 μM. 25-HC was found to affect the motility of zebrafish larvae, primary motor axon and muscle morphology. Furthermore, larvae treated with 25-HC showed a reduced neuronal network and number of HuC-positive cells in the brain. An increased cell death was also observed in both the brain and spinal cord of zebrafish treated with 25-HC. Interestingly, administration of 25-HC at later stages of development (24 and 48 h post fertilization) had no detrimental effects on motor axons. Altogether, our findings show that elevated levels of 25-HC may have important consequences on neuronal development and cell survival.
Collapse
Affiliation(s)
| | - Shunmoogum A Patten
- INRS Institut Armand-Frappier, Laval, QC, Canada; Centre d'Excellence en Recherche sur les Maladies Orphelines - Fondation Courtois (CERMO-FC), Université du Québec à Montréal (UQAM), Montréal, QC, Canada.
| |
Collapse
|
15
|
|
16
|
Dalmau N, Andrieu-Abadie N, Tauler R, Bedia C. Phenotypic and lipidomic characterization of primary human epidermal keratinocytes exposed to simulated solar UV radiation. J Dermatol Sci 2018; 92:97-105. [PMID: 30017509 DOI: 10.1016/j.jdermsci.2018.07.002] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Revised: 07/04/2018] [Accepted: 07/05/2018] [Indexed: 12/11/2022]
Abstract
BACKGROUND Ultraviolet (UV) radiation is known to be one of the most important environmental hazards acting on the skin. The most part of UV radiation is absorbed in the epidermis, where keratinocytes are the most abundant and exposed cell type. Lipids have an important role in skin biology, not only for their important contribution to the maintenance of the permeability barrier but also for the production and storage of energy, membrane organization and cell signalling functions. However, the effects on the lipid composition of keratinocytes under UV radiation are little explored. OBJECTIVE The present work aims to explore the effects on the phenotype and lipid content of primary human keratinocytes exposed to simulated solar UV radiation. METHODS Keratinocytes were exposed to a single (acute exposure) and repeated simulated solar UV irradiations for 4 weeks (chronic exposure). Cell viability and morphology were explored, as well as the production of reactive oxygen species. Then, lipid extracts were analysed through liquid chromatography coupled to mass spectrometry (LC-MS) and the data generated was processed using the ROIMCR chemometric methodology together with partial least squares discriminant analysis (PLS-DA), to finally reveal the most relevant lipid changes that occurred in keratinocytes upon UV irradiation. Also, the potential induction of keratinocyte differentiation was explored by measuring the increase of involucrin. RESULTS Under acute irradiation, cell viability and morphology were not altered. However, a general increase of phosphatidylcholines (PC) phosphatidylethanolamines (PE) and phosphatidylglycerol (PG) together with a slight sphingomyelin (SM) decrease were found in UV irradiated cells, among other changes. In addition, keratinocyte cultures did not present any differentiation hallmark. Contrary to acute-irradiated cells, in chronic exposures, cell viability was reduced and keratinocytes presented an altered morphology. Also, hallmarks of differentiation, such as the increase of involucrin protein and the autophagy induction were detected. Among the main lipid changes that accompanied this phenotype, the increase of long-chain ceramides, lysoPC and glycerolipid species were found. CONCLUSION Important lipid changes were detected under acute and chronic UV irradiation. The lipid profile under chronic exposure may represent a lipid fingerprint of the keratinocyte differentiation phenotype.
Collapse
Affiliation(s)
- Núria Dalmau
- Department of Environmental Chemistry, Institute of Environmental Assessment and Water Research (IDAEA-CSIC), c/ Jordi Girona 18-24, 08034 Barcelona, Spain
| | - Nathalie Andrieu-Abadie
- INSERM UMR 1037, Centre de Recherches en Cancérologie de Toulouse (CRCT), 31037, Toulouse, France
| | - Romà Tauler
- Department of Environmental Chemistry, Institute of Environmental Assessment and Water Research (IDAEA-CSIC), c/ Jordi Girona 18-24, 08034 Barcelona, Spain
| | - Carmen Bedia
- Department of Environmental Chemistry, Institute of Environmental Assessment and Water Research (IDAEA-CSIC), c/ Jordi Girona 18-24, 08034 Barcelona, Spain.
| |
Collapse
|
17
|
Yang K, Gao B, Ming X, Huang Z, Wang M, Dong J, Wang J. Synthesis and evaluation of xanthone derivatives as acid sphingomyelinase inhibitors: potential treatment for UV-induced skin damage. Future Med Chem 2017; 9:1887-98. [DOI: 10.4155/fmc-2017-0102] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Aim: ASM, which hydrolyzes sphingomyelin into ceramide, is recognized as a therapeutic target for UV-induced skin damage. Direct inhibitors for this enzyme are rare. Here we synthesized several series of 1,3,6,7-tetrahydroxy-xanthone derivatives as novel ASM inhibitors. Results: Several compounds were more potent than the lead compound, among which 5b was found competitively inhibiting the enzyme and dose-dependently reducing ceramide generation. Furthermore, 5b and 5c showed excellent protective effect to skin keratinocytes against UV. Quantitative structure–activity relationship investigation revealed detail relationships between molecular structure and biological activity. Insight into the binding mode was precisely illuminated by molecule docking. Conclusion: This work would provide fresh ideas and strong supports for further development of ASM inhibitors and drug candidates for skin damage.
Collapse
|
18
|
Cui ZK, Kim S, Baljon JJ, Doroudgar M, Lafleur M, Wu BM, Aghaloo T, Lee M. Design and Characterization of a Therapeutic Non-phospholipid Liposomal Nanocarrier with Osteoinductive Characteristics To Promote Bone Formation. ACS Nano 2017; 11:8055-8063. [PMID: 28787576 PMCID: PMC5575928 DOI: 10.1021/acsnano.7b02702] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Sterosomes are recently developed types of non-phospholipid liposomes formed from single-chain amphiphiles and high content of sterols. Although sterosomes presented significantly increased stability compared to conventional phospholipid liposomes, current sterosome biomaterials are not truly bioactive and have no intrinsic therapeutic effects. The purpose of this study was to develop a sterosome formulation with osteoinductive properties by an effective selection of sterol, one of the sterosome components. Oxysterols are oxidized derivatives of cholesterol and are known to stimulate osteogenesis and bone formation. Thus, 20S-hydroxycholesterol (Oxy), one of the most potent oxysterols for bone regeneration, was examined as a promising candidate molecule to form fluid lamellar phases with a single-chain amphiphile, namely, stearylamine (SA). First, the optimal composition was identified by investigating the phase behavior of SA/Oxy mixtures. Next, the capacity of the optimized SA/Oxy sterosomes to promote osteogenic differentiation of bone marrow stromal cells was assessed in vitro in a hydrogel environment. Furthermore, we explored the effects of osteogenic oxysterol sterosomes in vivo with the mouse critical-sized calvarial defect model. Our results showed that SA/Oxy sterosomes induced osteogenic differentiation in vitro and enhanced calvarial healing without delivery of additional therapeutic agents, indicating their intrinsic bone-forming potential. This study suggests a promising non-phospholipid liposomal platform with osteoinductive properties for delivery of small molecular drugs and/or other therapeutic genes for enhanced bone formation.
Collapse
Affiliation(s)
- Zhong-Kai Cui
- Division of Advanced Prosthodontics, University of California Los Angeles, 10833 Le Conte Avenue, Los Angeles, CA 90095
| | - Soyon Kim
- Department of Bioengineering, University of California Los Angeles, 420 Westwood Plaza, Los Angeles, CA 90095
| | - Jessalyn J. Baljon
- Department of Bioengineering, University of California Los Angeles, 420 Westwood Plaza, Los Angeles, CA 90095
| | - Mahmoudreza Doroudgar
- Department of Chemistry, Université de Montréal, C.P.6128, Succ. Centre Ville, Montréal, Québec H3C 3J7, Canada
| | - Michel Lafleur
- Department of Chemistry, Université de Montréal, C.P.6128, Succ. Centre Ville, Montréal, Québec H3C 3J7, Canada
| | - Benjamin M Wu
- Division of Advanced Prosthodontics, University of California Los Angeles, 10833 Le Conte Avenue, Los Angeles, CA 90095
- Department of Bioengineering, University of California Los Angeles, 420 Westwood Plaza, Los Angeles, CA 90095
| | - Tara Aghaloo
- Division of Diagnostic and Surgical Sciences, University of California Los Angeles, 10833 Le Conte Avenue, Los Angeles, CA 90095
| | - Min Lee
- Division of Advanced Prosthodontics, University of California Los Angeles, 10833 Le Conte Avenue, Los Angeles, CA 90095
- Department of Bioengineering, University of California Los Angeles, 420 Westwood Plaza, Los Angeles, CA 90095
- Corresponding author. Tel: +1 310 825 6674, Fax: +1 310 825 6345,
| |
Collapse
|
19
|
Abstract
UV radiation exposure from sunlight and artificial tanning beds is the major risk factor for the development of skin cancer and skin photoaging. UV-induced skin damage can trigger a cascade of DNA damage response signaling pathways, including cell cycle arrest, DNA repair and, if damage is irreparable, apoptosis. Compensatory proliferation replaces the apoptotic cells to maintain skin barrier integrity. Disruption of these processes can be exploited to promote carcinogenesis by allowing the survival and proliferation of damaged cells. UV radiation also induces autophagy, a catabolic process that clears unwanted or damaged proteins, lipids and organelles. The mechanisms by which autophagy is activated following UV exposure, and the functions of autophagy in UV response, are only now being clarified. Here, we summarize the current understanding of the mechanisms governing autophagy regulation by UV, the roles of autophagy in regulating cellular response to UV-induced photodamage and the implications of autophagy modulation in the treatment and prevention of photoaging and skin cancer.
Collapse
Affiliation(s)
- Ashley Sample
- Department of Medicine, Section of Dermatology, University of Chicago, Chicago, IL
- Committee on Cancer Biology, University of Chicago, Chicago, IL
| | - Yu-Ying He
- Department of Medicine, Section of Dermatology, University of Chicago, Chicago, IL
- Committee on Cancer Biology, University of Chicago, Chicago, IL
| |
Collapse
|
20
|
Ponda MP, Liang Y, Kim J, Hutt R, Dowd K, Gilleaudeau P, Sullivan-Whalen MM, Rodrick T, Kim DJ, Barash I, Lowes MA, Breslow JL. A randomized clinical trial in vitamin D-deficient adults comparing replenishment with oral vitamin D 3 with narrow-band UV type B light: effects on cholesterol and the transcriptional profiles of skin and blood. Am J Clin Nutr 2017; 105:1230-1238. [PMID: 28228421 PMCID: PMC5402037 DOI: 10.3945/ajcn.116.150367] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Accepted: 01/30/2017] [Indexed: 12/11/2022] Open
Abstract
Background: Vitamin D deficiency, defined as a serum 25-hydroxyvitamin D [25(OH)D] concentration <20 ng/mL, is correlated with a more atherogenic lipid profile. However, oral vitamin D supplementation does not lower LDL-cholesterol concentrations or raise HDL-cholesterol concentrations. This uncoupling between association and causation may result from a failure of oral vitamin D to mimic the effect of dermally synthesized vitamin D in response to ultraviolet type B (UVB) light.Objective: We tested the hypothesis that, in vitamin D-deficient adults, the replenishment of vitamin D with UVB exposure would lower LDL-cholesterol concentrations compared with the effect of oral vitamin D3 supplementation.Design: We performed a randomized clinical trial in vitamin D-deficient adults and compared vitamin D replenishment between subjects who received oral vitamin D3 (n = 60) and those who received narrow-band UVB exposure (n = 58) ≤6 mo.Results: There was no difference in the change from baseline LDL-cholesterol concentrations between oral vitamin D3 and UVB groups (difference in median of oral vitamin D3 minus that of UVB: 1.5 mg/dL; 95% CI: -5.0, 7.0 mg/dL). There were also no differences within groups or between groups for changes in total or HDL cholesterol or triglycerides. Transcriptional profiling of skin and blood, however, revealed significant upregulation of immune pathway signaling with oral vitamin D3 but significant downregulation with UVB.Conclusions: Correcting vitamin D deficiency with either oral vitamin D3 or UVB does not improve the lipid profile. Beyond cholesterol, these 2 modalities of raising 25(OH)D have disparate effects on gene transcription. This trial was registered at clinicaltrials.gov as NCT01688102.
Collapse
Affiliation(s)
| | - Yupu Liang
- Rockefeller University Hospital Center for Clinical and Translational Science, and
| | - Jaehwan Kim
- Laboratory of Investigative Dermatology, The Rockefeller University, New York, NY; and
| | - Richard Hutt
- Rockefeller University Hospital Center for Clinical and Translational Science, and
| | - Kathleen Dowd
- Rockefeller University Hospital Center for Clinical and Translational Science, and
| | - Patricia Gilleaudeau
- Laboratory of Investigative Dermatology, The Rockefeller University, New York, NY; and
| | | | - Tori Rodrick
- Laboratory of Biochemical Genetics and Metabolism
| | - Dong Joo Kim
- Laboratory of Investigative Dermatology, The Rockefeller University, New York, NY; and
| | - Irina Barash
- Division of Nephrology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Michelle A Lowes
- Laboratory of Investigative Dermatology, The Rockefeller University, New York, NY; and
| | | |
Collapse
|