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Li C, Hu Y, Mu Z, Shi L, Sun X, Wang X, Wang Y, Li X. Comparison of various excimer laser (EL) combination therapies for vitiligo: a systematic review and network meta-analysis. J DERMATOL TREAT 2024; 35:2302064. [PMID: 38230424 DOI: 10.1080/09546634.2024.2302064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Accepted: 12/22/2023] [Indexed: 01/18/2024]
Abstract
AIM This study aimed to compare the efficacy and safety of excimer laser (EL)-based combination regimens in improving repigmentation. METHODS A comprehensive search was conducted in PubMed, Web of Science, Cochrane Library, and Embase on July 1, 2023, to include randomized controlled trials of EL combination treatments for vitiligo that met the criteria. The primary outcome measure was a repigmentation rate ≥ 75%, and the secondary outcome measures were a repigmentation rate of ≤ 25% and adverse events. RESULTS Eleven studies involving 348 patients were included. Network Meta-Analysis showed that EL combined with antioxidants (SUCRA = 98.8%), EL combined with calcipotriol (SUCRA = 59.8%) and EL combined with tacalcitol (SUCRA = 59.6%) were the three optimal interventions achieving repigmentation rates ≥ 75%. EL alone (SUCRA = 77.6%), EL combined with tacalcitol (SUCRA = 61.7%) and EL combined with antioxidants (SUCRA = 57.2%) were the three interventions with the highest rates of treatment failure. Adverse events in all groups mainly included erythema, burning sensation and hyperpigmentation. Based on the results of the current study, EL combination therapies were safe with mild adverse events. CONCLUSION EL combined with antioxidants was the preferred regimen for vitiligo, whereas EL alone was the regimen with the highest rate of treatment failure in vitiligo.
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Affiliation(s)
- ChanXiu Li
- Department of Dermatology, The Affiliated Hospital of Liaoning University of Traditional Chinese Medicine, Shenyang, People's Republic of China
| | - Yue Hu
- Department of Dermatology, The Affiliated Hospital of Liaoning University of Traditional Chinese Medicine, Shenyang, People's Republic of China
| | - ZengYi Mu
- Graduate School, Liaoning University of Traditional Chinese Medicine, Shenyang, People's Republic of China
| | - Lei Shi
- Department of Otorhinolaryngology, The Affiliated Hospital of Liaoning University of Traditional Chinese Medicine, Shenyang, People's Republic of China
| | - Xiao Sun
- Graduate School, Liaoning University of Traditional Chinese Medicine, Shenyang, People's Republic of China
| | - XinYue Wang
- Graduate School, Liaoning University of Traditional Chinese Medicine, Shenyang, People's Republic of China
| | - YaPing Wang
- Department of Otorhinolaryngology, Yongchuan Chinese Medicine Hospital Affiliated to Chongqing Medical University, Chongqing, People's Republic of China
| | - XinHong Li
- Department of Dermatology, The Affiliated Hospital of Liaoning University of Traditional Chinese Medicine, Shenyang, People's Republic of China
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Liu M, Guan G, Wang Y, Lu X, Duan X, Xu X. p-Hydroxy benzaldehyde, a phenolic compound from Nostoc commune, ameliorates DSS-induced colitis against oxidative stress via the Nrf2/HO-1/NQO-1/NF-κB/AP-1 pathway. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 133:155941. [PMID: 39128305 DOI: 10.1016/j.phymed.2024.155941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2024] [Revised: 07/22/2024] [Accepted: 08/05/2024] [Indexed: 08/13/2024]
Abstract
BACKGROUND Ulcerative colitis (UC), a chronic idiopathic inflammatory bowel disease (IBD), presents with limited current drug treatment options. Consequently, the search for safe and effective drug for UC prevention and treatment is imperative. Our prior studies have demonstrated that the phenolic compound p-Hydroxybenzaldehyde (HD) from Nostoc commune, effectively mitigates intestinal inflammation. However, the mechanisms underlying HD's anti-inflammatory effects remain unclear. PURPOSE This study delved into the pharmacodynamics of HD and its underlying anti-inflammation mechanisms. METHODS For in vivo experiments, dextran sodium sulfate (DSS)-induced colitis mouse model was established. In vitro inflammation model was established using lipopolysaccharide (LPS)-induced RAW264.7 and bone marrow-derived macrophages (BMDMs). The protective effect of HD against colitis was determined by monitoring clinical symptoms and histological morphology in mice. The levels of inflammatory factors and oxidative stress markers were subsequently analyzed with enzyme-linked immunosorbent assay (ELISA) and biochemical kits. Furthermore, western blotting (WB), immunofluorescence (IF), luciferase reporter gene, drug affinity reaction target stability (DARTS) assay, molecular docking, and molecular dynamics (MD) simulation were used to determine the potential target and molecular mechanism of HD. RESULTS Our findings indicate that HD significantly alleviated the clinical symptoms and histological morphology of colitis in mice, and curtailed the production of pro-inflammatory cytokines, including TNF-α, IL-6, IFN-γ, COX-2, and iNOS. Furthermore, HD stimulated the production of SOD, CAT, and GSH-px, enhanced total antioxidant capacity (T-AOC), and reduced MDA levels. Mechanically, HD augmented the expression of Nrf2, HO-1, and NQO-1, while concurrently downregulating the phosphorylation of p65, IκBα, c-Jun, and c-Fos. ML385 and siNrf2 largely attenuated the protective effect of HD in enteritis mice and RAW 264.7 cells, as well as the promotion of HO-1 expression levels. ZnPP-mediated HO-1 knockdown reversed HD-induced inhibition of colonic inflammation. Luciferase reporter assay and IF assay confirmed the transcriptional activation of Nrf2 by HD. DARTS analysis, molecular docking, and MD results showed high binding strength, interaction efficiency and remarkable stability between Nrf2 and HD. CONCLUSION These outcomes extend our previous research results that HD can combat oxidative stress through the Nrf2/HO-1/NQO-1/NF-κB/AP-1 pathways, effectively alleviating colitis, and propose new targets for HD to protect against intestinal barrier damage.
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Affiliation(s)
- Meng Liu
- School of Pharmacy, Guilin Medical University, Guilin 541199, China; School of Pharmacy, Faculty of Medicine, Macau University of Science and Technology, Macau SAR 999078, China
| | - Guoqiang Guan
- School of Pharmacy, Guilin Medical University, Guilin 541199, China; School of Biomedical Industry, Guilin Medical University, Guilin 541199, China
| | - Yuhui Wang
- School of Pharmacy, Guilin Medical University, Guilin 541199, China; School of Biomedical Industry, Guilin Medical University, Guilin 541199, China
| | - Xi Lu
- School of Pharmacy, Guilin Medical University, Guilin 541199, China; School of Biomedical Industry, Guilin Medical University, Guilin 541199, China
| | - Xiaoqun Duan
- School of Pharmacy, Guilin Medical University, Guilin 541199, China; School of Pharmacy, Faculty of Medicine, Macau University of Science and Technology, Macau SAR 999078, China; School of Biomedical Industry, Guilin Medical University, Guilin 541199, China.
| | - Xiaotian Xu
- School of Pharmacy, Guilin Medical University, Guilin 541199, China.
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Zhang N, Guo P, Zhao Y, Qiu X, Shao S, Liu Z, Gao Z. Pharmacological mechanisms of puerarin in the treatment of Parkinson's disease: An overview. Biomed Pharmacother 2024; 177:117101. [PMID: 39002442 DOI: 10.1016/j.biopha.2024.117101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2024] [Revised: 07/02/2024] [Accepted: 07/07/2024] [Indexed: 07/15/2024] Open
Abstract
Puerarin, a monomer of traditional Chinese medicine, is a key component of Pueraria radix. Both clinical and experimental researches demonstrated that puerarin has therapeutic effects on Parkinson's disease (PD). Puerarin's pharmacological mechanisms include: 1) Anti-apoptosis. Puerarin inhibits cell apoptosis through the phosphatidylinositol-4,5-bisphosphate 3-kinase (PI3K)/protein kinase B (Akt) and c-Jun N-terminal kinase (JNK) signaling pathways. Puerarin also exerts a hormone-like effect against cell apoptosis; 2) Anti-oxidative stress injury. Puerarin inhibits the Nrf2 nuclear exclusion through the GSK-3β/Fyn pathway to promote the Nrf2 accumulation in the nucleus, and then promotes the antioxidant synthesis through the Nrf2/ARE signaling pathway to protect against oxidative stress; 3) Neuroprotective effects by intervening in the ubiquitin-proteasome system (UPS) and autophagy-lysosomal pathway (ALP). Puerarin significantly enhances the activity of chaperone-mediated autophagy (CMA), which downregulates the expression of α-synuclein, reduces its accumulation, and thus improves the function of damaged neurons. Additionally, puerarin increases proteasome activity and decreases ubiquitin-binding proteins, thereby preventing toxic accumulation of intracellular proteins; 4) Alleviating inflammatory response. Puerarin inhibits the conversion of microglia to the M1 phenotype while inducing the transition of microglia to the M2 phenotype. Furthermore, puerarin promotes the secretion of anti-inflammatory factor and inhibits the expression of pro-inflammatory factors; 5) Increasing the levels of dopamine and its metabolites. Puerarin could increase the levels of dopamine, homovanillic acid (HVA) and 3,4-dihydroxyphenylacetic acid (DOPAC) in the striatum; 6) Promoting neurotrophic factor expression and neuronal repair. Puerarin increases the expression of glial cell-derived neurotrophic factor (GDNF), brain-derived neurotrophic factor (BDNF) and nerve growth factor (NGF), thereby exerting a neuroprotective effect. Moreover, the regulation of the gut microbiota by puerarin may be a potential mechanism for the treatment of PD. The current review discusses the molecular mechanisms of puerarin, which may provide insight into the active components of traditional Chinese medicine in the treatment of PD.
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Affiliation(s)
- Nianping Zhang
- Postdoctoral Mobile Station, Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250355, China; Experimental Center, Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250355, China
| | - Peng Guo
- Department of Neurology, Jinan Third People's Hospital, Jinan, Shandong 250132, China
| | - Yan Zhao
- Department of Hand and Upper Limb Surgery, Jinan Third People's Hospital, Jinan, Shandong 250132, China
| | - Xiao Qiu
- Experimental Center, Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250355, China
| | - Shuai Shao
- Department of reproductive medicine, Jingmen People's Hospital, Jingmen, Hubei 448000, China
| | - Zhenzhong Liu
- School of Public Health, North Sichuan Medical College, Nanchong, Sichuan 637100, China
| | - Zong Gao
- Department of Neurosurgery, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250014, China.
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Li X, Chen S, Wu Y, Qiu G, Cheng S, Lan H, Yan Z, Huang D. Antibody immune responses and causal relationships in four immune skin diseases: Evidence from Mendelian randomization and Bayesian Weighting (Antibody Responses in Skin Diseases: MR & Bayesian). Skin Res Technol 2024; 30:e13875. [PMID: 39120064 PMCID: PMC11311118 DOI: 10.1111/srt.13875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2024] [Accepted: 07/05/2024] [Indexed: 08/10/2024]
Abstract
BACKGROUND Recent studies increasingly suggest that microbial infections and the immune responses they elicit play significant roles in the pathogenesis of chronic inflammatory skin diseases. This study uses Mendelian randomization (MR) and Bayesian weighted Mendelian randomization (BWMR) to explore the causal relationships between immune antibody responses and four common skin diseases: psoriasis, atopic dermatitis (AD), rosacea, and vitiligo. METHODS We utilized summary statistics from genome-wide association studies (GWAS) for antibody responses to 13 infectious pathogens and four skin diseases. Single nucleotide polymorphisms (SNPs) were selected as instrumental variables (IVs) to assess causal relationships using multiple MR methods, including inverse variance weighted (IVW), MR Egger, and weighted median. BWMR was also employed to confirm findings and address potential pleiotropy. RESULTS The IVW analysis identified significant associations between specific antibody responses and the skin diseases studied. Key findings include protective associations of anti-Epstein-Barr virus (EBV) IgG seropositivity and Helicobacter pylori UREA antibody levels with psoriasis and AD. anti-chlamydia trachomatis IgG seropositivity, anti-polyomavirus 2 IgG seropositivity, and varicella zoster virus glycoprotein E and I antibody levels were negatively associated with rosacea, while EBV Elevated levels of the early antigen (EA-D) antibody levels and HHV-6 IE1B antibody levels were positively associated with rosacea. H. pylori Catalase antibody levels were protectively associated with vitiligo, whereas anti-herpes simplex virus 2 (HSV-2) IgG seropositivity was positively associated with vitiligo. The BWMR analysis confirmed these associations. CONCLUSION This study underscores the significant role of H. pylori and other pathogens in these skin diseases, suggesting both protective and exacerbating effects depending on the specific condition. Understanding these pathogen-immune interactions can lead to the development of more effective, personalized treatments and preventative strategies, ultimately improving patient outcomes and quality of life.
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Affiliation(s)
- Xiaojian Li
- Clinical Medical CollegeJiangxi University of Chinese MedicineNanchangChina
| | - Shiyu Chen
- Clinical Medical CollegeJiangxi University of Chinese MedicineNanchangChina
| | - Yunbo Wu
- Clinical Medical CollegeJiangxi University of Chinese MedicineNanchangChina
- Dermatology DepartmentAffiliated Hospital of Jiangxi University of Chinese MedicineNanchangChina
| | - Guirong Qiu
- Clinical Medical CollegeJiangxi University of Chinese MedicineNanchangChina
- Dermatology DepartmentAffiliated Hospital of Jiangxi University of Chinese MedicineNanchangChina
| | - Shiping Cheng
- Clinical Medical CollegeJiangxi University of Chinese MedicineNanchangChina
- Dermatology DepartmentAffiliated Hospital of Jiangxi University of Chinese MedicineNanchangChina
| | - Hongrong Lan
- Clinical Medical CollegeJiangxi University of Chinese MedicineNanchangChina
| | - Zhangren Yan
- Clinical Medical CollegeJiangxi University of Chinese MedicineNanchangChina
- Dermatology DepartmentAffiliated Hospital of Jiangxi University of Chinese MedicineNanchangChina
| | - Dongbei Huang
- Clinical Medical CollegeJiangxi University of Chinese MedicineNanchangChina
- Dermatology DepartmentAffiliated Hospital of Jiangxi University of Chinese MedicineNanchangChina
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Sabido-Sauri R, Baraliakos X, Aydin SZ. Enthesopathies - Mechanical, inflammatory or both? Best Pract Res Clin Rheumatol 2024:101966. [PMID: 39019747 DOI: 10.1016/j.berh.2024.101966] [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: 06/10/2024] [Accepted: 06/22/2024] [Indexed: 07/19/2024]
Abstract
Entheses have the challenging task of transferring biomechanical forces between tendon and bone, two tissues that differ greatly in composition and mechanical properties. Consequently, entheses are adapted to withstand these forces through continuous repair mechanisms. Locally specialized cells (mechanosensitive tenocytes) are crucial in the repair, physiologically triggering biochemical processes to maintain hemostasis. When repetitive forces cause "material fatigue," or trauma exceeds the entheses' repair capacity, structural changes occur, and patients become symptomatic. Clinical assessment of enthesopathies mainly depends on subjective reports by the patient and lacks specificity, especially in patients with central sensitization syndromes. Ultrasonography has been increasingly used to improve the diagnosis of enthesopathies. In this article, the literature on how biomechanical forces lead to entheseal inflammation, including factors contributing to differentiation into a "clinical enthesitis" state and the value of ultrasound to diagnose enthesopathies will be reviewed, as well as providing clues to overcome the pitfalls of imaging.
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Affiliation(s)
| | | | - Sibel Zehra Aydin
- Division of Rheumatology, Department of Medicine, University of Ottawa, Canada; Ottawa Hospital Research Institute, Canada.
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Chauhan K, Goel F, Singh S. Apigenin protects melanocytes and improve tyrosinase activity in a hydroquinone induced vitiligo mouse model targeting P38 MAP kinase signaling: histopathology and immunohistochemistry analysis. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2024; 397:4859-4869. [PMID: 38157025 DOI: 10.1007/s00210-023-02917-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Accepted: 12/20/2023] [Indexed: 01/03/2024]
Abstract
Apigenin (APG) is a plant-based flavonoid that possesses antioxidants, anti-inflammatory, and modulates P38 MAPK as well as tyrosinase. Hydroquinone (HQ), a phenolic compound was used to induce vitiligo in C57BL/6 mice. The present study was performed to check the therapeutic potential of apigenin in HQ-induced vitiligo via targeting P38 MAPK pathway. In the present study, 41 C57BL/6 mice were divided into six groups containing seven animals per group except normal group. (I) normal group, (II) HQ group, (III) to (IV) APG with (1%, 2.5%, 5%), and (VI) tacrolimus (TAC) group. Topical application of HQ was performed from day 1 to day 20 to, (II), (III) to (IV) APG with (1%, 2.5%, 5%), (VI) tacrolimus (TAC) group, and then APG; tacrolimus (TAC) was applied from day 21 to day 60 after removing the hair. In the case of (I) normal group and (II) HQ group, we smeared them with water for 60 days and HQ for 20 days in their individual group. On day 61 after anesthesia, a part of the target skin was peeled and blood serum was taken to check the level of malondialdehyde, cholinesterase, catalase, tyrosinase, pro-inflammatory cytokines, and expression of P38 MAPK, histology of melanin containing hair follicles and depigmentation evaluation. Applying HQ topically had a noticeable impact on depigmentation, inflammatory indicators, oxidative stress, and lowered tyrosinase activity. Further HQ reduced melanin containing hair follicles and increased expression of P38 MAPK was confirmed by histopathology and immunohistochemistry. Furthermore, application of APG and TAC after day 21 to 60 significantly reduced depigmentation, inflammatory markers, oxidative stress, and increased tyrosinase. Furthermore, APG increased melanin containing hair follicles and decreased expression of non-phosphorylated P38 MAPK, as confirmed by histopathology and immunohistochemistry. Our finding demonstrated that APG significantly prevented HQ-induced vitiligo by acting as an anti-inflammatory, increasing tyrosine, and reducing the expression of non-phosphorylated P38 MAPK.
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Affiliation(s)
- Kanupriya Chauhan
- Department of Pharmacology, ISF College of Pharmacy, Moga, 142001, Punjab, India
| | - Falguni Goel
- Department of Pharmacology, ISF College of Pharmacy, Moga, 142001, Punjab, India
| | - Shamsher Singh
- Department of Pharmacology, ISF College of Pharmacy, Moga, 142001, Punjab, India.
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Chen KQ, Wang SZ, Lei HB, Liu X. Mini-review: research and progress of oxeiptosis in diseases. Front Cell Dev Biol 2024; 12:1428250. [PMID: 38966429 PMCID: PMC11222317 DOI: 10.3389/fcell.2024.1428250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2024] [Accepted: 06/05/2024] [Indexed: 07/06/2024] Open
Abstract
Oxeiptosis is a novel cell death pathway that was introduced in 2018. As a form of regulated cell death, it operates independently of caspases and is induced by ROS. Distinguished from other cell death pathways such as apoptosis, necroptosis, pyroptosis, and ferroptosis, oxeiptosis features unique damage causes pivotal genes, and signaling pathways (KEAP1/PGAM5/AIFM1). Emerging studies indicate that oxeiptosis plays a significant role in the progression of various diseases and its regulation could serve as a promising therapeutic target. However, the precise molecular mechanisms underlying oxeiptosis remain to be fully elucidated. In this mini-review, we systematically summarize the latest developments in oxeiptosis-related diseases while detailing the molecular mechanisms and regulatory networks of oxeiptosis. These insights offer a foundation for a deeper understanding of oxeiptosis.
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Affiliation(s)
- Ke-Qian Chen
- Department of Clinical Pharmacy, Xiangtan Central Hospital, Xiangtan, China
| | - Shu-Zhi Wang
- Institute of Pharmacy and Pharmacology, School of Pharmaceutical Sciences, Hengyang Medical School, University of South China, Hengyang, China
| | - Hai-Bo Lei
- Department of Clinical Pharmacy, Xiangtan Central Hospital, Xiangtan, China
| | - Xiang Liu
- Department of Clinical Pharmacy, Xiangtan Central Hospital, Xiangtan, China
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Xie Y, Wu N, Tang S, Zhou Z, Chen J, Li J, Wu F, Xu M, Xu X, Liu Y, Ma X. Endoplasmic Reticulum Dysfunction: An Emerging Mechanism of Vitiligo Pathogenesis. Clin Cosmet Investig Dermatol 2024; 17:1133-1144. [PMID: 38774812 PMCID: PMC11107934 DOI: 10.2147/ccid.s459070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Accepted: 04/25/2024] [Indexed: 05/24/2024]
Abstract
The endoplasmic reticulum (ER) is the main site of protein synthesis, transport, and modification. Its abnormal status has now emerged as an established cause of many pathological processes, such as tumors and autoimmune diseases. Recent studies also demonstrated that the defective functions of ER may lead to pigmentary diseases. Vitiligo is a depigmenting ailment skin disorder whose pathogenesis is now found to be associated with ER. However, the detailed mechanism is still unclear. In this review, we try to link the association between ER with its inter- and intra-organellar interactions in vitiligo pathogenesis and focus on the function, mechanism, and clinical potential of ER with vitiligo. Expand ER is found in melanocytes of vitiligo and ER stress (ERS) might be a bridge between oxidative stress and innate and adaptive immunity. Meanwhile, the tight association between ER and mitochondria or melanosomes in organelles levels, as well as genes and cytokines, is the new paradigm in the pathogenesis of vitiligo. This undoubtedly adds a new aspect to the understanding of vitiligo, facilitating the design of targeted therapies for vitiligo.
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Affiliation(s)
- Yongyi Xie
- Shanghai Skin Disease Hospital, Institute of Dermatology, School of Medicine, Tongji University, Shanghai, People’s Republic of China
| | - Nanhui Wu
- Shanghai Skin Disease Hospital, Institute of Dermatology, School of Medicine, Tongji University, Shanghai, People’s Republic of China
| | - Suwei Tang
- Shanghai Skin Disease Hospital, Institute of Dermatology, School of Medicine, Tongji University, Shanghai, People’s Republic of China
| | - Zhiyu Zhou
- Shanghai Skin Disease Hospital, Institute of Dermatology, School of Medicine, Tongji University, Shanghai, People’s Republic of China
| | - Jiashe Chen
- Shanghai Skin Disease Hospital, Institute of Dermatology, School of Medicine, Tongji University, Shanghai, People’s Republic of China
| | - Jie Li
- Shanghai Skin Disease Hospital, Institute of Dermatology, School of Medicine, Tongji University, Shanghai, People’s Republic of China
| | - Fei Wu
- Shanghai Skin Disease Hospital, Institute of Dermatology, School of Medicine, Tongji University, Shanghai, People’s Republic of China
| | - Mingyuan Xu
- Shanghai Skin Disease Hospital, Institute of Dermatology, School of Medicine, Tongji University, Shanghai, People’s Republic of China
| | - Xiaoxiang Xu
- Shanghai Skin Disease Hospital, Institute of Dermatology, School of Medicine, Tongji University, Shanghai, People’s Republic of China
| | - Yeqiang Liu
- Shanghai Skin Disease Hospital, Institute of Dermatology, School of Medicine, Tongji University, Shanghai, People’s Republic of China
| | - Xin Ma
- Shanghai Skin Disease Hospital, Institute of Dermatology, School of Medicine, Tongji University, Shanghai, People’s Republic of China
- Department of Dermatology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, People’s Republic of China
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He MJ, Ran DL, Zhang ZY, Fu DS, He Q, Zhang HY, Mao Y, Zhao PY, Yin GW, Zhang JA. Exploring the roles and potential therapeutic strategies of inflammation and metabolism in the pathogenesis of vitiligo: a mendelian randomization and bioinformatics-based investigation. Front Genet 2024; 15:1385339. [PMID: 38660673 PMCID: PMC11039897 DOI: 10.3389/fgene.2024.1385339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Accepted: 03/26/2024] [Indexed: 04/26/2024] Open
Abstract
Introduction Vitiligo, a common autoimmune acquired pigmentary skin disorder, poses challenges due to its unclear pathogenesis. Evidence suggests inflammation and metabolism's pivotal roles in its onset and progression. This study aims to elucidate the causal relationships between vitiligo and inflammatory proteins, immune cells, and metabolites, exploring bidirectional associations and potential drug targets. Methods Mendelian Randomization (MR) analysis encompassed 4,907 plasma proteins, 91 inflammatory proteins, 731 immune cell features, and 1400 metabolites. Bioinformatics analysis included Protein-Protein Interaction (PPI) network construction, Gene Ontology (GO), and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis. Subnetwork discovery and hub protein identification utilized the Molecular Complex Detection (MCODE) plugin. Colocalization analysis and drug target exploration, including molecular docking validation, were performed. Results MR analysis identified 49 proteins, 39 immune cell features, and 59 metabolites causally related to vitiligo. Bioinformatics analysis revealed significant involvement in PPI, GO enrichment, and KEGG pathways. Subnetwork analysis identified six central proteins, with Interferon Regulatory Factor 3 (IRF3) exhibiting strong colocalization evidence. Molecular docking validated Piceatannol's binding to IRF3, indicating a stable interaction. Conclusion This study comprehensively elucidates inflammation, immune response, and metabolism's intricate involvement in vitiligo pathogenesis. Identified proteins and pathways offer potential therapeutic targets, with IRF3 emerging as a promising candidate. These findings deepen our understanding of vitiligo's etiology, informing future research and drug development endeavors.
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Affiliation(s)
- Ming-jie He
- Department of Dermatology, First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - De-long Ran
- Department of Dermatology, First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Zhan-yi Zhang
- Department of Plastic and Reconstructive Surgery, The First Hospital of Jilin University, Changchun, Jilin, China
| | - De-shuang Fu
- Department of Dermatology, First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Qing He
- Department of Dermatology, First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Han-Yin Zhang
- Department of Dermatology, First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Yu Mao
- Department of Dermatology, First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Peng-Yuan Zhao
- Department of Dermatology, First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Guang-wen Yin
- Department of Dermatology, First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Jiang-an Zhang
- Department of Dermatology, First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
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Hamada R, Funasaka Y, Saeki H, Serizawa N, Hagino T, Yano Y, Mitsui H, Kanda N. Dietary habits in adult Japanese patients with vitiligo. J Dermatol 2024; 51:491-508. [PMID: 38421796 DOI: 10.1111/1346-8138.17163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 02/04/2024] [Accepted: 02/07/2024] [Indexed: 03/02/2024]
Abstract
Vitiligo is an autoimmune skin disease with acquired depigmentation. Dietary habits may modulate the pathogenesis of vitiligo. We evaluated dietary habits in adult Japanese patients with nonsegmental vitiligo, and compared their results with those of age- and sex-matched controls. We also examined the relationship between dietary habits and Vitiligo Area Scoring Index (VASI), or vitiligo on different anatomical sites. The intakes of energy, nutrients, and foods in the participants were analyzed using a brief-type self-administered diet history questionnaire. Patients with vitiligo showed higher body mass index (BMI) and lower intakes of manganese, vitamin D, pulses, and confection, compared with controls. Multivariate logistic regression analysis showed that vitiligo was associated with high BMI. VASI was higher in males than in females, and negatively correlated with age or intakes of potatoes and vegetables other than green/yellow vegetables. Linear multivariate regression analysis showed that high VASI was associated with younger age. Multivariate logistic regression analysis showed that moderate to severe vitiligo (VASI ≥ 4.25) was associated with male sex and longer disease duration. Multivariate logistic regression analyses showed the following association with vitiligo on respective anatomical sites: high intake of eggs and dairy products and high VASI on the head or neck, high intake of oils and fats and high VASI on the trunk, high intake of cereals and high VASI on the upper limbs, male sex and high VASI on the lower limbs, and high BMI and high VASI on the hands or feet. In conclusion, the control of obesity might have prophylactic or therapeutic effects on vitiligo.
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Affiliation(s)
- Risa Hamada
- Department of Dermatology, Nippon Medical School, Tokyo, Japan
| | - Yoko Funasaka
- Department of Dermatology, Nippon Medical School, Tokyo, Japan
| | - Hidehisa Saeki
- Department of Dermatology, Nippon Medical School, Tokyo, Japan
| | - Naotaka Serizawa
- Department of Dermatology, Nippon Medical School Chiba Hokusoh Hospital, Inzai, Japan
| | - Teppei Hagino
- Department of Dermatology, Nippon Medical School Chiba Hokusoh Hospital, Inzai, Japan
| | | | | | - Naoko Kanda
- Department of Dermatology, Nippon Medical School Chiba Hokusoh Hospital, Inzai, Japan
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Wang Y, He Z, Luo B, Wong H, Wu L, Zhou H. Human Mesenchymal Stem Cell-Derived Exosomes Promote the Proliferation and Melanogenesis of Primary Melanocytes by Attenuating the H 2O 2-Related Cytotoxicity in vitro. Clin Cosmet Investig Dermatol 2024; 17:683-695. [PMID: 38524392 PMCID: PMC10959324 DOI: 10.2147/ccid.s446676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Accepted: 02/13/2024] [Indexed: 03/26/2024]
Abstract
Background Mesenchymal stem cell-derived exosomes (MSC-Exo) have therapeutic potential. However, the impact of MSC-Exo on the survival and melanogenesis of human primary melanocytes following H2O2-induced damage has not been clarified. We therefore investigated the effects of MSC-Exo on the H2O2-affected survival of human primary melanocytes and their proliferation, apoptosis, senescence, and melanogenesis in vitro. Methods MSC-Exo were prepared from human MSCs by sequential centrifugations and characterized by Transmission Electron Microscopy, Western blot and Nanoparticle Tracking Analysis. Human primary melanocytes were isolated and treated with different concentrations of MSC-Exo, followed by exposing to H2O2. Furthermore, the impact of pretreatment with MSC-Exo on the proliferation, apoptosis, senescence and melanogenesis of melanocytes were tested by CCK-8, flow cytometry, Western blot, L-Dopa staining, tyrosinase activity and RT-qPCR. Results Pretreatment with lower doses of MSC-Exo protected human primary melanocytes from the H2O2-triggered apoptosis, while pretreatment with higher doses of MSC-Exo enhanced the H2O2-induced melanocyte apoptosis. Compared with the untreated control, pretreatment with a lower dose (1 µg/mL) of MSC-Exo enhanced the proliferation of melanocytes, abrogated the H2O2-increased p53, p21, IL-1β, IL-6 and IL-8 expression and partially rescued the H2O2-decreased L-dopa staining reaction, tyrosinase activity, MITF and TRP1 expression in melanocytes. Conclusion Our findings indicate that treatment with a low dose of MSC-Exo promotes the proliferation and melanogenesis of human primary melanocytes by ameliorating the H2O2-induced apoptosis and senescence of melanocytes. MSC-Exo may be a promising therapeutic strategy of vitiligo.
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Affiliation(s)
- Yexiao Wang
- Department of Dermatology, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, People’s Republic of China
| | - Zibin He
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, People’s Republic of China
| | - Bingqin Luo
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, People’s Republic of China
| | - Hioteng Wong
- Department of Dermatology, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, People’s Republic of China
| | - Liangcai Wu
- Department of Dermatology, the Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, People’s Republic of China
| | - Hui Zhou
- Department of Dermatology, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, People’s Republic of China
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12
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Su L, Wang F, Wang Y, Qin C, Yang X, Ye J. Circulating biomarkers of oxidative stress in people with acne vulgaris: a systematic review and meta-analysis. Arch Dermatol Res 2024; 316:105. [PMID: 38489064 DOI: 10.1007/s00403-024-02840-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 01/15/2024] [Accepted: 02/06/2024] [Indexed: 03/17/2024]
Abstract
The relationship between acne vulgaris and oxidative stress biomarkers lacks a clear consensus. This study aimed to explore the potential correlation between acne vulgaris and circulating oxidative stress biomarkers (superoxide dismutase [SOD], malondialdehyde [MDA], and total antioxidant capacity [TAC]). We searched the PubMed, Embase, and Cochrane Library databases for articles published before June 26, 2023. The literature search combined free words and the medical subject headings terms related to acne vulgaris, SOD, MDA, and TAC. Data were analyzed using Stata 15 software. Additionally, we conducted a subgroup analysis stratified by the severity of acne vulgaris. A total of 14 trials involving 1191 participants were included. Overall results revealed that acne vulgaris was associated with MDA concentrations (SMD = 1.73; 95% CI 1.05, 2.4; P < 0.001). Subgroup analyses indicated that the severity of acne vulgaris was correlated with levels of circulating biomarkers of oxidative stress. TAC concentrations were significantly lower in patients with moderate acne vulgaris compared to controls (SMD = - 1.37; 95% CI = - 2.15, - 0.58, P = 0.001). SOD concentrations were significantly lower (SMD = - 2.92; 95% CI = - 5.39, - 0.46, P = 0.02) and MDA concentrations were significantly higher (SMD = 2.26; 95% CI = 0.95, 3.57, P = 0.001) in patients with severe acne vulgaris compared to controls. Our results implied that oxidative stress may exist in acne vulgaris. Furthermore, the severity of acne vulgaris was also correlated with oxidative stress.
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Affiliation(s)
- Liang Su
- Department of Dermatology, The First Affiliated Hospital of Yunnan University of Chinese Medicine, Kunming, China
- Department of Dermatology, Yunnan Provincial Hospital of Traditional Chinese Medicine, No 120, Guanghua Street, Kunming, 650021, China
| | - Fang Wang
- The First Clinical School of Yunnan University of Chinese Medicine, Kunming, China
| | - Yuan Wang
- Department of Dermatology, The Second Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Cheng Qin
- The First Clinical School of Yunnan University of Chinese Medicine, Kunming, China
| | - Xuesong Yang
- Department of Dermatology, The First Affiliated Hospital of Yunnan University of Chinese Medicine, Kunming, China.
- Department of Dermatology, Yunnan Provincial Hospital of Traditional Chinese Medicine, No 120, Guanghua Street, Kunming, 650021, China.
| | - Jianzhou Ye
- Department of Dermatology, The First Affiliated Hospital of Yunnan University of Chinese Medicine, Kunming, China.
- Department of Dermatology, Yunnan Provincial Hospital of Traditional Chinese Medicine, No 120, Guanghua Street, Kunming, 650021, China.
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13
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Temel B, Orenay O, Karaosmanoglu N. An Evaluation of the Hematological Markers of Systemic Inflammation and Oxidative Stress in Vitiligo: A Case-Control Study. Cureus 2024; 16:e56034. [PMID: 38606245 PMCID: PMC11008697 DOI: 10.7759/cureus.56034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/12/2024] [Indexed: 04/13/2024] Open
Abstract
Introduction Melanocyte dysfunction in vitiligo is considered to be due to genetics, inflammation, and autoimmunity. Research has shown that oxidative stress plays a significant role in triggering these conditions. Currently, there are several markers indicating hematological inflammation and oxidative stress. This study aimed to investigate the status of inflammation and oxidative stress markers in vitiligo. Methods This study included patients with vitiligo and age-gender-matched healthy controls. C-reactive protein (CRP), neutrophil-to-lymphocyte ratio (NLR), monocyte-to-lymphocyte ratio (MLR), platelet-to-lymphocyte ratio (PLR), and monocyte-to-high-density lipoprotein ratio (MHR) and extent of vitiligo were calculated and compared. Results The study included 138 participants (69 vitiligo and 69 controls). The mean was 41.46 years with a female predominance (55.1%). The patient group demonstrated higher levels of platelets, neutrophils, CRP, NLR, MLR, PLR, and HDL and lower levels of lymphocytes and HDL compared to the control group (p>0,05). The only significantly different value between the groups was MHR (p=0.03). The generalized vitiligo group demonstrated higher levels of platelets, neutrophils, monocytes, CRP, NLR, PLR, and MLR, and lower levels of lymphocytes and HDL compared to the localized group. The only significantly different values between the groups were MHR and MLR (p=0.02, p=0.03). Conclusion This study found that MHR and CRP values were higher in vitiligo patients. Additionally, MHR and MLR values were higher in patients with generalized vitiligo. These results suggest that MHR is a reliable indicator marker for systemic inflammation and oxidative stress in vitiligo.
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Affiliation(s)
- Berkay Temel
- Dermatology, Ankara Training and Research Hospital, Ministry of Health, Ankara, TUR
| | - Ozge Orenay
- Dermatology, Ankara Training and Research Hospital, Ankara, TUR
| | - Nermin Karaosmanoglu
- Dermatology, Ankara Education and Research Hospital, Health Sciences University, Ankara, TUR
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14
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Mormile R. De Novo Vitiligo Following Covid-19 Infection and Vaccination: A Door Open to Future Events? Arch Med Res 2024; 55:102961. [PMID: 38295468 DOI: 10.1016/j.arcmed.2024.102961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Accepted: 01/16/2024] [Indexed: 02/02/2024]
Affiliation(s)
- Raffaella Mormile
- Division of Pediatrics and Neonatology, Moscati Hospital, Aversa, Italy.
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15
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Li Y, Zeng Y, Chen Z, Tan X, Mei X, Wu Z. The role of aryl hydrocarbon receptor in vitiligo: a review. Front Immunol 2024; 15:1291556. [PMID: 38361944 PMCID: PMC10867127 DOI: 10.3389/fimmu.2024.1291556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Accepted: 01/18/2024] [Indexed: 02/17/2024] Open
Abstract
Vitiligo is an acquired autoimmune dermatosis characterized by patchy skin depigmentation, causing significant psychological distress to the patients. Genetic susceptibility, environmental triggers, oxidative stress, and autoimmunity contribute to melanocyte destruction in vitiligo. Due to the diversity and complexity of pathogenesis, the combination of inhibiting melanocyte destruction and stimulating melanogenesis gives the best results in treating vitiligo. The aryl hydrocarbon receptor (AhR) is a ligand-activated transcription factor that can regulate the expression of various downstream genes and play roles in cell differentiation, immune response, and physiological homeostasis maintenance. Recent studies suggested that AhR signaling pathway was downregulated in vitiligo. Activation of AhR pathway helps to activate antioxidant pathways, inhibit abnormal immunity response, and upregulate the melanogenesis gene, thereby protecting melanocytes from oxidative stress damage, controlling disease progression, and promoting lesion repigmentation. Here, we review the relevant literature and summarize the possible roles of the AhR signaling pathway in vitiligo pathogenesis and treatment, to further understand the links between the AhR and vitiligo, and provide new potential therapeutic strategies.
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Affiliation(s)
- Yiting Li
- Department of Dermatology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yibin Zeng
- Department of Dermatology, Minhang Hospital, Fudan University, Shanghai, China
| | - Zile Chen
- Department of Dermatology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xi Tan
- Department of Dermatology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xingyu Mei
- Department of Dermatology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zhouwei Wu
- Department of Dermatology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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16
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Ni Y, Zhang Y, Sun J, Zhao L, Wu B, Ye J. The effect of antioxidant dietary supplements and diet-derived circulating antioxidants on vitiligo outcome: evidence from genetic association and comprehensive Mendelian randomization. Front Nutr 2024; 10:1280162. [PMID: 38274214 PMCID: PMC10808665 DOI: 10.3389/fnut.2023.1280162] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Accepted: 12/27/2023] [Indexed: 01/27/2024] Open
Abstract
Background Previous studies have indicated that antioxidant diets may have a positive impact on vitiligo by interfering with oxidative stress mechanisms. However, there has been a lack of research utilizing the Mendelian randomization (MR) method to analyze the relationship between antioxidant diet intake and vitiligo. Methods In this study, we employed both univariate Mendelian randomization (UVMR) and multivariate Mendelian randomization (MVMR) approaches. The specific antioxidant dietary supplements (such as coffee intake, green tea intake, herbal tea intake, standard tea intake, and average weekly red wine intake) as well as diet-derived circulating antioxidants, including Vit. C (ascorbate), Vit. E (α-tocopherol), Vit. E (γ-tocopherol), Carotene, Vit. A (retinol), Zinc, and Selenium (N = 2,603-428,860) were significantly associated with independent single-nucleotide polymorphisms (SNPs). We obtained pooled statistics on vitiligo from a meta-analysis of three genome-wide association studies (GWASs) of European ancestry, including 4,680 cases and 39,586 controls. Inverse variance weighted (IVW) was employed as the primary analytical method, and sensitivity analysis was conducted to assess the robustness of the main findings. Results Genetically, coffee intake [odds ratio (OR) = 0.17, 95% confidence interval (CI) 0.07-0.37, p = 1.57 × 10-5], average weekly red wine intake (OR = 0.28, 95% CI 0.08-1.00, p = 0.049), and standard tea intake (OR = 0.99, 95% CI 0.98-0.99, p = 5.66 × 10-7) were identified as protective factors against vitiligo. However, no causal effect between the intake of other antioxidant diets and vitiligo was found. Moreover, no instances of pleiotropy or heterogeneity were observed in this study. Conclusion Our study indicates that coffee, standard tea, and red wine consumption can potentially reduce the risk of vitiligo. However, there is insufficient evidence to support that other antioxidant diets have a significant effect on vitiligo.
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Affiliation(s)
- Yao Ni
- Nanjing University of Traditional Chinese Medicine, Nanjing, Jiangsu, China
- Department of Dermatovenereology, Chengdu Second People’s Hospital, Chengdu, Sichuan, China
| | - Youqian Zhang
- Health Science Center, Yangtze University, Jingzhou, Hubei, China
| | - Jingying Sun
- Department of Dermatovenereology, Chengdu Second People’s Hospital, Chengdu, Sichuan, China
| | - Lingyi Zhao
- Department of Dermatovenereology, Chengdu Second People’s Hospital, Chengdu, Sichuan, China
| | - Bo Wu
- Department of Dermatovenereology, Chengdu Second People’s Hospital, Chengdu, Sichuan, China
| | - Jianzhou Ye
- Nanjing University of Traditional Chinese Medicine, Nanjing, Jiangsu, China
- Department of Dermatovenereology, The First Affiliated Hospital of Yunnan University of Traditional Chinese Medicine, Kunming, Yunnan, China
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Boniface K. Aetiopathogenesis of Vitiligo. Dermatol Pract Concept 2023; 13:dpc.1304S2a314S. [PMID: 38241397 PMCID: PMC10824321 DOI: 10.5826/dpc.1304s2a314s] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/11/2023] [Indexed: 01/21/2024] Open
Abstract
Vitiligo is a chronic auto-immune disease characterized by skin depigmentation due to the loss of melanocytes. The better understanding of the disease mechanisms is currently undergoing a significant dynamism, opening a new era in therapeutic development. The pathophysiology of vitiligo has attracted the attention of researchers for years and many advances have been made in clarifying the crosstalk between the cellular players involved in the development of vitiligo lesions. The understanding of the complex interactions between epidermal cells (i.e. melanocytes and keratinocytes), dermal fibroblasts, and immune cells, led to a better characterization of the signals leading to the loss of melanocytes. Recent advances highlighted the role resident T memory cells in the development and recurrence of lesions. This narrative review aims to give an overview of the mechanisms leading to melanocyte disappearance in vitiligo, with a focus on the intercellular interaction network involved in the activation of the local skin immune response.
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Affiliation(s)
- Katia Boniface
- University of Bordeaux, CNRS, Immuno ConcEpT, UMR 5164, Bordeaux, France
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18
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Kim NH, Kim HJ, Lee AY. Aquaporin-3 Downregulation in Vitiligo Keratinocytes Increases Oxidative Stress of Melanocytes. Biomol Ther (Seoul) 2023; 31:648-654. [PMID: 37818624 PMCID: PMC10616513 DOI: 10.4062/biomolther.2023.112] [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: 06/13/2023] [Revised: 07/25/2023] [Accepted: 08/08/2023] [Indexed: 10/12/2023] Open
Abstract
Oxidative stress-induced melanocyte apoptosis is linked to the immune system and plays a critical role in the pathogenesis of vitiligo. Aquaporin-3 (AQP3), which is downregulated in vitiligo keratinocytes, regulates intracellular H2O2 accumulation. However, the role of AQP3 in oxidative stress is uncertain in vitiligo. This study investigated the effect of downregulated AQP3 on oxidative stress in vitiligo using lesional and non-lesional skin specimen sets from vitiligo patients and primary cultured adult normal human epidermal keratinocytes, with or without downregulation and overexpression of AQP3 in the presence or absence of H2O2 treatment. The levels of nuclear factor E2-related factor 2 (NRF2) and/or its main target, NAD(P)H quinone dehydrogenase 1 (NQO-1), were lower in the lesional keratinocytes and cultured keratinocytes with AQP3 knockdown, but were increased in keratinocytes upon AQP3 overexpression. Ratios of NRF2 nuclear translocation and NQO-1 expression levels were further reduced in AQP3-knockdown keratinocytes following H2O2 treatment. The conditioned media from AQP3-knockdown keratinocytes treated with H2O2 contained higher concentrations of reactive oxygen species (ROS). Moreover, the number of viable melanocytes was reduced when the conditioned media were added to the culture media. Overall, AQP3 downregulation in the keratinocytes of patients with vitiligo can induce oxidative stress in neighboring melanocytes, leading to melanocyte death.
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Affiliation(s)
- Nan-Hyung Kim
- Department of Dermatology, Dongguk University School of Medicine, Goyang 10326, Republic of Korea
| | - Ha Jung Kim
- Department of Dermatology, Dongguk University School of Medicine, Goyang 10326, Republic of Korea
| | - Ai-Young Lee
- Department of Dermatology, Dongguk University School of Medicine, Goyang 10326, Republic of Korea
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19
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Białczyk A, Wełniak A, Kamińska B, Czajkowski R. Oxidative Stress and Potential Antioxidant Therapies in Vitiligo: A Narrative Review. Mol Diagn Ther 2023; 27:723-739. [PMID: 37737953 PMCID: PMC10590312 DOI: 10.1007/s40291-023-00672-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/17/2023] [Indexed: 09/23/2023]
Abstract
Vitiligo is a chronic skin disorder characterised by the loss of melanocytes and subsequent skin depigmentation. Although many theories have been proposed in the literature, none alone explains the pathogenesis of vitiligo. Oxidative stress has been identified as a potential factor in the pathogenesis of vitiligo. A growing body of evidence suggests that antioxidant therapies may offer a promising approach to managing this condition. This review summarises the potential mechanisms of oxidative stress and the types of melanocyte death in vitiligo. We also provide a brief overview of the most commonly studied antioxidants. Melanocytes in vitiligo are thought to be damaged by an accumulation of reactive oxygen species to destroy the structural and functional integrity of their DNA, lipids, and proteins. Various causes, including exogenous and endogenous stress factors, an imbalance between prooxidants and antioxidants, disruption of antioxidant pathways, and gene polymorphisms, lead to the overproduction of reactive oxygen species. Although necroptosis, pyroptosis, ferroptosis, and oxeiptosis are newer types of cell death that may contribute to the pathophysiology of vitiligo, apoptosis remains the most studied cell death mechanism in vitiligo. According to studies, vitamin E helps to treat lipid peroxidation of the skin caused by psoralen ultra-violet A treatment. In addition, Polypodium leucotomos increased the efficacy of psoralen ultra-violet A or narrow-band ultraviolet B therapy. Our review provides valuable insights into the potential role of oxidative stress in pathogenesis and antioxidant-based supporting therapies in treating vitiligo, offering a promising avenue for further research and the development of effective treatment strategies.
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Affiliation(s)
- Aleksandra Białczyk
- Students' Scientific Club of Dermatology, Department of Dermatology and Venerology, Ludwik Rydygier Collegium Medicum, Nicolaus Copernicus University, 9 Skłodowskiej-Curie Street, 85-094, Bydgoszcz, Poland.
| | - Adam Wełniak
- Students' Scientific Club of Dermatology, Department of Dermatology and Venerology, Ludwik Rydygier Collegium Medicum, Nicolaus Copernicus University, 9 Skłodowskiej-Curie Street, 85-094, Bydgoszcz, Poland
| | - Barbara Kamińska
- Students' Scientific Club of Dermatology, Department of Dermatology and Venerology, Ludwik Rydygier Collegium Medicum, Nicolaus Copernicus University, 9 Skłodowskiej-Curie Street, 85-094, Bydgoszcz, Poland
| | - Rafał Czajkowski
- Department of Dermatology and Venerology, Ludwik Rydygier Collegium Medicum, Nicolaus Copernicus University, Bydgoszcz, Poland
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20
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Ezzedine K, Soliman AM, Li C, Camp HS, Pandya AG. Comorbidity Burden Among Patients with Vitiligo in the United States: A Large-Scale Retrospective Claims Database Analysis. Dermatol Ther (Heidelb) 2023; 13:2265-2277. [PMID: 37668899 PMCID: PMC10539259 DOI: 10.1007/s13555-023-01001-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Accepted: 08/02/2023] [Indexed: 09/06/2023] Open
Abstract
INTRODUCTION Vitiligo is often associated with comorbid conditions that may increase economic burden and affect patients' health-related quality of life. No large-scale study has been published to date using claims databases to evaluate the burden of comorbidities among patients with vitiligo. Herein, we evaluate the comorbidity burden among patients diagnosed with vitiligo from the US. METHODS This retrospective cohort analysis used the Merative MarketScan Commercial Database. Eligible patients were diagnosed with vitiligo between January 2008 and December 2020 and matched 1:4 (vitiligo:control) with control subjects with no diagnosis of vitiligo between January 2007 and December 2021. Study outcomes were the incidence of comorbidities after matching, adjusted hazard ratios of comorbidity incidence among patients with vitiligo relative to matched control subjects, and time to comorbidity diagnosis or incidence. RESULTS Baseline demographics were well balanced between matched vitiligo (n = 13,687) and control cohorts (n = 54,748). Incidence rates of comorbidities were higher among patients compared with control subjects (psychiatric, 28.4% vs 22.8%; autoimmune, 13.4% vs 5.1%; and non-autoimmune, 10.0% vs 7.0%). The most common psychiatric and autoimmune comorbidities in patients with vitiligo compared with control subjects included anxiety (14.3% vs 11.0%, respectively), sleep disturbance (9.1% vs 7.1%), depression (8.0% vs 6.3%), atopic dermatitis (3.1% vs 1.1%), psoriasis (2.7% vs 0.6%), and linear morphea (1.5% vs 0.1%). The risk of developing any psychiatric (hazard ratio 1.31; P < 0.01), autoimmune (hazard ratio 2.77; P < 0.01), or non-autoimmune (hazard ratio 1.45; P < 0.01) comorbidity was significantly higher among patients with vitiligo. Time to diagnosis of most vitiligo comorbidities was 1-3 years, although linear morphea was diagnosed at < 1 year. CONCLUSION Results of this retrospective analysis demonstrated that patients were much more likely to be diagnosed with autoimmune or psychiatric comorbidities following a vitiligo diagnosis, which likely contributed to increased economic burden and lower quality of life.
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Affiliation(s)
- Khaled Ezzedine
- Department of Dermatology, AP-HP, Henri Mondor University Hospital, UPEC, 51 Avenue de Lattre de Tassignv, 94000, Créteil, France.
- EA 7379 EpiDermE, Université Paris-Est Créteil (UPEC), Créteil, France.
| | | | - Chao Li
- AbbVie Inc., North Chicago, IL, USA
| | | | - Amit G Pandya
- Palo Alto Foundation Medical Group, Sunnyvale, CA, USA
- University of Texas Southwestern Medical Center, Dallas, TX, USA
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21
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Li B, Zhu G, Kang P, Chen J, He K, Wang X, Gao T, Li C, Li S. Influences of vitiligo-associated characteristics on the occurrence of diabetes mellitus: Interactive analysis of a cross-sectional study. Exp Dermatol 2023; 32:1805-1814. [PMID: 37584091 DOI: 10.1111/exd.14904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 07/02/2023] [Accepted: 07/24/2023] [Indexed: 08/17/2023]
Abstract
The risk of diabetes mellitus (DM) in vitiligo patients is higher than that in non-vitiligo population. Our goal was to explore the influencing factors for DM in vitiligo patients. A matched-pair design of 107 cases with DM and 428 controls without DM was conducted among vitiligo patients in Xijing hospital from January 2010 to October 2021. The baseline characteristics of patients were analysed based on standard descriptive statistics. The vitiligo-associated characteristics were analysed by logistic regression to identify influencing factors of DM. Interaction analysis was performed to explore the additive interactions between vitiligo-associated characteristics and baseline characteristics. After adjustment for the baseline characteristics, the severity of vitiligo [odds ratio (OR) = 2.47, 95% confidence interval (CI): 1.47-4.14] and onset age of vitiligo (OR = 0.98, 95% CI: 0.97-0.99) had a significant correlation with occurrence of DM. The severity of vitiligo had additive interaction with family history of diabetes [relative excess risk due to interaction (RERI) = 132.51 (95% CI: 5.51-1100.20), attributable proportion (AP) = 0.91 (95% CI: 0.17-0.95), synergy index (S) = 11.53 (95% CI: 1.32-100.5)] and with smoking history [RERI = 6.54 (95% CI: 0.67-19.83), AP = 0.64 (95% CI: 0.04-0.80), S = 3.48 (95% CI: 1.17-10.36)]. Earlier onset age of vitiligo and greater BSA involvement might be two independent risk factors for DM in vitiligo patients. Interaction assessment identified the severity of vitiligo as additive interaction factors with diabetes family history and with smoking history for the DM occurrence.
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Affiliation(s)
- Baizhang Li
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University Xi'an, Shaanxi, China
| | - Guannan Zhu
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University Xi'an, Shaanxi, China
| | - Pan Kang
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University Xi'an, Shaanxi, China
| | - Jianru Chen
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University Xi'an, Shaanxi, China
| | - Kaiqiao He
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University Xi'an, Shaanxi, China
| | - Xinju Wang
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University Xi'an, Shaanxi, China
| | - Tianwen Gao
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University Xi'an, Shaanxi, China
| | - Chunying Li
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University Xi'an, Shaanxi, China
| | - Shuli Li
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University Xi'an, Shaanxi, China
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Jung HS, Lee NK, Paik HD. Heat-Killed Latilactobacillus sakei CNSC001WB and Lactobacillus pentosus WB693 Have an Anti-inflammatory Effect on LPS-Stimulated RAW 264.7 Cells. Probiotics Antimicrob Proteins 2023:10.1007/s12602-023-10139-6. [PMID: 37589784 DOI: 10.1007/s12602-023-10139-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/07/2023] [Indexed: 08/18/2023]
Abstract
Excessive inflammatory results, such as those seen in rheumatoid arthritis and cardiovascular diseases, are known to cause various complications. Therefore, we aimed to investigate whether heat-killed Latilactobacillus sakei CNS001WB and Lactobacillus pentosus WB693 can prevent inflammatory reactions. When LPS-stimulated RAW 264.7 cells were handled with either heat-killed Lact. sakei CNSC001WB or Lact. pentosus WB693, the production of nitric oxide reduced. Furthermore, the expression of cyclooxygenase (COX)-2 and proinflammatory cytokines, such as tumor necrosis factor-alpha (TNF-α), interleukin (IL)-1β, and IL-6, was suppressed. The expression of prostaglandin E2 (PGE2) and leukotriene B4 (LTB4), which play important roles in inflammatory diseases, especially arthritis, was also reduced. Moreover, these strains inhibited nuclear factor-κB (NF-κB) and mitogen-activated protein kinase (MAPK) pathways, which activate various cytokines and inflammatory mediators. Additionally, heat-killed Lact. sakei CNSC001WB and Lact. pentosus WB693 inhibited the reactive oxygen species (ROS) production. Based on these results, we concluded that heat-killed Lact. sakei CNSC001WB and Lact. pentosus WB693 sufficiently inhibited the inflammatory response and may have anti-inflammatory potential.
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Affiliation(s)
- Hee-Su Jung
- Department of Food Science and Biotechnology of Animal Resources, Konkuk University, Seoul, 05029, Republic of Korea
| | - Na-Kyoung Lee
- Department of Food Science and Biotechnology of Animal Resources, Konkuk University, Seoul, 05029, Republic of Korea
| | - Hyun-Dong Paik
- Department of Food Science and Biotechnology of Animal Resources, Konkuk University, Seoul, 05029, Republic of Korea.
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