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Shahroudi MJ, Rezaei M, Mirzaeipour M, Saravani M, Shahraki-Ghadimi H, Arab S. Association between miR-202, miR-211, and miR-1238 gene polymorphisms and risk of vitiligo. Arch Dermatol Res 2024; 316:118. [PMID: 38597990 DOI: 10.1007/s00403-024-02847-y] [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: 10/13/2023] [Revised: 02/04/2024] [Accepted: 02/09/2024] [Indexed: 04/11/2024]
Abstract
Vitiligo, as a common pigment defect in the skin, hair, and mucous membranes, results from the destruction of melanocytes. Recent investigations have shown that miRNA dysregulation contributes in the pathogenesis of vitiligo. Therefore, in this research, our aim is to explore the relationship between miR-202 rs12355840, miR-211 rs8039189, and miR-1238 rs12973308 polymorphisms and susceptibility to vitiligo. A total number of 136 vitiligo patients and 129 healthy individuals as a control group were included in this research. The salting out approach was implemented to extraction genomic DNA. The genetic polymorphisms of miR-202 rs12355840, miR-211 rs8039189, and miR-1238 rs12973308 were determined using PCR-RFLP approach. The findings revealed that miR-202 rs12355840 polymorphism under codominant (CT and TT genotypes), dominant, recessive, overdominant, and also allelic models is correlated with increased risk of vitiligo. In addition, codominant, dominant, overdominant, as well as allelic models of miR-211 rs8039189 polymorphism decrease risk of vitiligo. No significant relationship was observed between the miR-1238 rs12973308 polymorphism and susceptibility to vitiligo. The miR-211 rs8039189 polymorphism may serve a protective effect on vitiligo development and miR-202 rs12355840 polymorphism may act as a risk factor for vitiligo susceptibility.
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Affiliation(s)
- Mahdieh Jafari Shahroudi
- Cellular and Molecular Research Center, Research Institute of Cellular and Molecular Sciences in Infectious Diseases, Zahedan University of Medical Sciences, Zahedan, Iran.
- Department of Occupational Health Engineering, School of Health, Shiraz University of Medical Sciences, Shiraz, Iran.
| | - Mahnaz Rezaei
- Cellular and Molecular Research Center, Research Institute of Cellular and Molecular Sciences in Infectious Diseases, Zahedan University of Medical Sciences, Zahedan, Iran
- Department of Clinical Biochemistry, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran
| | | | - Mohsen Saravani
- Cellular and Molecular Research Center, Research Institute of Cellular and Molecular Sciences in Infectious Diseases, Zahedan University of Medical Sciences, Zahedan, Iran
- Department of Clinical Biochemistry, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Hossein Shahraki-Ghadimi
- Cellular and Molecular Research Center, Research Institute of Cellular and Molecular Sciences in Infectious Diseases, Zahedan University of Medical Sciences, Zahedan, Iran
- Bioinformatics and Computational Omics Lab (BioCOOL), Department of Biophysics, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Sara Arab
- Khatam Al Anbia Hospital, Zahedan University of Medical Sciences, Zahedan, Iran
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Mendonça LO, dos Reis Chuster AP, Dorna MB, Barros SF, Alves JB, Gonçalves VL, Yang AC, Kalil J, Toledo-Barros MAM, Kokron CM. Underlying IPEX syndrome in a patient with idiopathic juvenile arthritis and vitiligo. Allergy Asthma Clin Immunol 2022; 18:105. [PMID: 36503523 PMCID: PMC9743487 DOI: 10.1186/s13223-022-00740-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Accepted: 11/14/2022] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND IPEX syndrome is an X-linked inborn error of immunity clinically characterized by the triad of: enteropathy, polyendocrinopathy and eczema. However many other clinical presentations lacking the triad above described have been reported what underpin the need of careful clinical suspicion, immunological evaluation and genetic sequencing. CASE PRESENTATION Here we report a case of a Brazilian boy with severe eczema as the first and only presentation requiring cyclosporin therapy. Progressive and cumulative symptoms of arthritis and enteropathy lead to the suspicion of an inborn error of immunity. Peripheral FOXP3 expression was normal (CD127-/CD4+/CD25+/FOXP3+-396 cells-63%) and a pathogenic mutation in FOXP3 gene (c.1150G>A; p.Ala384Thr), confirmed the diagnosis of IPEX syndrome. CONCLUSIONS IPEX syndrome should be suspected in patients presenting with severe eczema associated or not with other autoimmune/hyper inflammatory diseases in life. Our study also reinforces that FOXP3 expression by flowcytometry seems not to be a good screening method, and genetic sequencing is mandatory even in those with high suspicion and normal peripheral FOXP3 expression.
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Affiliation(s)
- Leonardo Oliveira Mendonça
- grid.11899.380000 0004 1937 0722Division of Clinical Immunology and Allergy, Hospital das Clinicas of the Faculdade de Medicina of the Universidade de São Paulo, Department of Internal Medicine, Universidade de São Paulo, Rua Dr. Enéas de Carvalho Aguiar, 255, 8th floor, São Paulo, 05403-000 Brazil ,grid.11899.380000 0004 1937 0722Laboratory for Immunological Investigation (LIM-19), Heart Institute, University of São Paulo, São Paulo, Brazil ,Division of Clinical Immunology and Allergy, Center for Rare and Immunological Disorders, DASA - Hospital 9 de Julho, São Paulo, Brazil
| | - Adriana Pitchon dos Reis Chuster
- grid.11899.380000 0004 1937 0722Division of Clinical Immunology and Allergy, Hospital das Clinicas of the Faculdade de Medicina of the Universidade de São Paulo, Department of Internal Medicine, Universidade de São Paulo, Rua Dr. Enéas de Carvalho Aguiar, 255, 8th floor, São Paulo, 05403-000 Brazil
| | - Mayra Barros Dorna
- grid.11899.380000 0004 1937 0722Division of Allergy and Immunology, Department of Pediatrics, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Samar Freschi Barros
- grid.11899.380000 0004 1937 0722Laboratory for Immunological Investigation (LIM-19), Heart Institute, University of São Paulo, São Paulo, Brazil
| | - Janaina Baptista Alves
- grid.11899.380000 0004 1937 0722Laboratory for Immunological Investigation (LIM-19), Heart Institute, University of São Paulo, São Paulo, Brazil
| | - Victor Lucas Gonçalves
- grid.11899.380000 0004 1937 0722Department of Surgical Pathology, School of Medicine, University of São Paulo, São Paulo, Brazil
| | - Ariana Campos Yang
- grid.11899.380000 0004 1937 0722Division of Clinical Immunology and Allergy, Hospital das Clinicas of the Faculdade de Medicina of the Universidade de São Paulo, Department of Internal Medicine, Universidade de São Paulo, Rua Dr. Enéas de Carvalho Aguiar, 255, 8th floor, São Paulo, 05403-000 Brazil
| | - Jorge Kalil
- grid.11899.380000 0004 1937 0722Division of Clinical Immunology and Allergy, Hospital das Clinicas of the Faculdade de Medicina of the Universidade de São Paulo, Department of Internal Medicine, Universidade de São Paulo, Rua Dr. Enéas de Carvalho Aguiar, 255, 8th floor, São Paulo, 05403-000 Brazil ,grid.11899.380000 0004 1937 0722Laboratory for Immunological Investigation (LIM-19), Heart Institute, University of São Paulo, São Paulo, Brazil
| | - Myrthes Anna Maragna Toledo-Barros
- grid.11899.380000 0004 1937 0722Division of Clinical Immunology and Allergy, Hospital das Clinicas of the Faculdade de Medicina of the Universidade de São Paulo, Department of Internal Medicine, Universidade de São Paulo, Rua Dr. Enéas de Carvalho Aguiar, 255, 8th floor, São Paulo, 05403-000 Brazil
| | - Cristina Maria Kokron
- grid.11899.380000 0004 1937 0722Division of Clinical Immunology and Allergy, Hospital das Clinicas of the Faculdade de Medicina of the Universidade de São Paulo, Department of Internal Medicine, Universidade de São Paulo, Rua Dr. Enéas de Carvalho Aguiar, 255, 8th floor, São Paulo, 05403-000 Brazil
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Chaudhary A, Patel M, Singh S. Current Debates on Etiopathogenesis and Treatment Strategies for Vitiligo. Curr Drug Targets 2022; 23:1219-1238. [PMID: 35388753 DOI: 10.2174/1389450123666220406125645] [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: 07/07/2021] [Revised: 12/12/2021] [Accepted: 12/31/2021] [Indexed: 01/25/2023]
Abstract
Vitiligo is an acquired, chronic, and progressive depigmentation or hypopigmentation characterized by the destruction of melanocytes and the occurrence of white patches or macules in the skin, mucosal surface of eyes, and ears. Melanocytes are the melanin pigment-producing cells of the skin which are destroyed in pathological conditions called vitiligo. Approximately 0.5 - 2.0% of the population is suffering from vitiligo, and a higher prevalence rate of up to 8.8% has been reported in India. It is caused by various pathogenic factors like genetic predisposition, hyperimmune activation, increased oxidative stress, and alteration in neuropeptides level. Genetic research has revealed a multi- genetic inheritance that exhibits an overlap with other autoimmune disorders. However, melanocytes specific genes are also affected (such as DDR1, XBP1, NLRP1, PTPN22, COMT, FOXP3, ACE, APE, GSTP1, TLR, SOD, and CTLA-4). A number of therapeutic options are employed for the treatment of vitiligo. The topical corticosteroids and immunomodulators are currently in practice for the management of vitiligo. Phototherapies alone and in combinations with other approaches are used in those patients who do not respond to the topical treatment. The main focus of this review is on the etiopathological factors, pharmacological management (phototherapy, topical, systemic, and surgical therapy), and herbal drugs used to treat vitiligo.
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Affiliation(s)
- Ankit Chaudhary
- Department of Pharmacology, Neuropharmacology Division, ISF College of Pharmacy, Moga, Punjab 142001, India
| | - Mayank Patel
- Department of Pharmacology, Neuropharmacology Division, ISF College of Pharmacy, Moga, Punjab 142001, India
| | - Shamsher Singh
- Department of Pharmacology, Neuropharmacology Division, ISF College of Pharmacy, Moga, Punjab 142001, India
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Mostafa M, Fathy AA, Elwasify M, Abdelsalam M. Analysis of selected polymorphisms in FOXP3 gene in a cohort of Egyptian patients with schizophrenia. J Genet Eng Biotechnol 2022; 20:83. [PMID: 35641708 PMCID: PMC9156649 DOI: 10.1186/s43141-022-00371-y] [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: 06/07/2021] [Accepted: 05/20/2022] [Indexed: 11/10/2022]
Abstract
BACKGROUND Schizophrenia is a chronic mental disorder with different symptoms. The environmental and genetic factors are suggested to be the etiology of schizophrenia. However, the exact cause and pathogenesis of schizophrenia are still unclear. Different studies suggested that the immune system may have a role in schizophrenia. A genetic study found a relation between the disease and the HLA region on the sixth chromosome. Regulatory T cells (Treg) have a role in the regulation of immune response, especially the balance between TH1 and TH2 cells. The FOXP3 protein is a key regulator for Treg cell's functions. FOXP3 is a transcriptional factor, and its gene is present on the short arm of the X chromosome. The selected SNPs present in the promoter region which act as binding sites for transcriptional factors. This study investigated FOXP3 gene polymorphisms (rs3761548, rs3761549, and rs2232365) in Egyptian patients with schizophrenia. There are no previous studies about the association of FOXP3 gene polymorphisms with schizophrenia. The three selected single-nucleotide polymorphisms (SNPs) were investigated using polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) for 125 schizophrenia patients and 160 healthy controls. The Positive and Negative Syndrome Scale (PANSS) was used to evaluate patients with schizophrenia. RESULTS No significant associations were found between schizophrenia patients and healthy controls for the alleles and genotypes of the selected SNPs (P-value > 0.05). However, a significant association with ACC and ATC haplotypes was detected (P-value 0.001). No significant association was detected between the PANSS score and any of the studied SNPs. CONCLUSION The ATC haplotype of rs2232365, rs3761549, and rs3761548 could be considered a risk factor for schizophrenia in Egyptian patients.
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Affiliation(s)
- Maged Mostafa
- Clinical Pathology Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - Aya Ahmed Fathy
- Public Health and Community Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - Mohamed Elwasify
- Psychiatry Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - Maha Abdelsalam
- Clinical Pathology Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt. .,Immunology Department, Egypt Center for Research and Regenerative Medicine (ECRRM), Cairo, Egypt.
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The Genetics of Pediatric Cutaneous Autoimmunity: The Sister Diseases Vitiligo and Alopecia Areata. Clin Dermatol 2022; 40:363-373. [DOI: 10.1016/j.clindermatol.2022.02.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Tan G, Wang X, Zheng G, Du J, Zhou F, Liang Z, Wei W, Yu H. Meta-analysis reveals significant association between FOXP3 polymorphisms and susceptibility to Graves' disease. J Int Med Res 2021; 49:3000605211004199. [PMID: 33858251 PMCID: PMC8054215 DOI: 10.1177/03000605211004199] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE This meta-analysis aimed to determine the associations between the rs3761547, rs3761548, and rs3761549 single-nucleotide polymorphisms (SNPs) of the forkhead box P3 (FOXP3) gene and susceptibility to Graves' disease (GD). METHODS Case-control studies with information on the associations between the rs3761547, rs3761548, and rs3761549 FOXP3 SNPs and GD published before 01 May 2020 were identified in the PubMed, Embase, Web of Science, and China National Knowledge Infrastructure databases. Data from the studies were analyzed using RevMan version 5.3. RESULTS Seven independent case-control studies including 4051 GD patients and 4569 controls were included in the meta-analysis. The overall pooled analysis indicated that FOXP3/rs3761548 and FOXP3/rs3761549 polymorphisms were significantly associated with GD susceptibility (rs3761548: A vs. C, odds ratio [OR] = 1.32, 95% confidence interval [CI] 1.05-1.67; rs3761549: TT vs. CC, OR = 1.98, 95%CI 1.49-2.65; (TT + TC) vs. CC, OR = 1.44, 95%CI 1.11-1.88). In contrast, the FOXP3/rs3761547 polymorphism was not associated with GD susceptibility. Subgroup analysis according to ethnicity showed that rs3761548 was associated with GD in Asians but not in Caucasians, whereas rs3761549 was associated in both Asians and Caucasians. CONCLUSION This meta-analysis demonstrated that FOXP3/rs3761548 and FOXP3/rs3761549 SNPs were significantly associated with susceptibility to GD, at least in Asian populations.
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Affiliation(s)
- Guiqin Tan
- Department of Immunology, Special Key Laboratory of Gene Detection and Therapy of Guizhou Province, Zunyi Medical University, Zunyi, China
| | - Xin Wang
- Department of Basic Medical Education, Zunyi Medical University, Zunyi, China
| | - Guangbing Zheng
- Department of Immunology, Special Key Laboratory of Gene Detection and Therapy of Guizhou Province, Zunyi Medical University, Zunyi, China
| | - Juan Du
- Department of Immunology, Special Key Laboratory of Gene Detection and Therapy of Guizhou Province, Zunyi Medical University, Zunyi, China
| | - Fangyu Zhou
- Department of Immunology, Special Key Laboratory of Gene Detection and Therapy of Guizhou Province, Zunyi Medical University, Zunyi, China
| | - Zhongzhi Liang
- Department of Immunology, Special Key Laboratory of Gene Detection and Therapy of Guizhou Province, Zunyi Medical University, Zunyi, China
| | - Wenwen Wei
- Department of Immunology, Special Key Laboratory of Gene Detection and Therapy of Guizhou Province, Zunyi Medical University, Zunyi, China
| | - Hongsong Yu
- Department of Immunology, Special Key Laboratory of Gene Detection and Therapy of Guizhou Province, Zunyi Medical University, Zunyi, China
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Ghasemi Z, Kalantar K, Amirghofran Z. The role of FOXP3 rs3761548 and rs2294021 polymorphisms in pediatrics acute lymphoblastic leukemia: association with risk and response to therapy. Mol Biol Rep 2021; 48:1139-1150. [PMID: 33517519 DOI: 10.1007/s11033-021-06154-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Accepted: 01/12/2021] [Indexed: 12/07/2022]
Abstract
FOXP3 X-linked gene has crucial roles in the development and function of regulatory T cells. We investigated the association of FOXP3 rs3761548, rs3761549 and rs2294021 single nucleotide polymorphisms (SNPs) with acute lymphoblastic leukemia (ALL) susceptibility and response to therapy. Genotyping was performed in 247 patients and 210 healthy subjects. We observed a higher frequency of rs3761548 A carriers and rs2294021 C carriers (p < 0.04) in male patients, and lower frequencies of rs3761548 AC genotype (p = 0.04) and rs2294021 CT genotype (p = 0.01) in female patients compared to controls. ACC (p = 0.04) and ATC haplotypes (p = 0.002) were associated with susceptibility to ALL. There was a significant correlation between the genotypes of rs3761548 and rs2294021 SNPs with event-free survival (EFS) and overall survival (OS). The rs3761548 A genotype in male patients was associated with increased risk of relapse (p < 0.0001), shorter EFS, increased death rate (p = 0.002) and shorter OS compared to C genotype (p = 0.001). Similar significant results were observed for the relation of rs2294021 C genotype with response to therapy in male patients. In females, patients with rs3761548 AC genotype had longer EFS (p = 0.02) and those with rs2294021 CT had longer EFS and OS (p < 0.005). According to haplotype analysis, patients carrying ACC or ATC haplotypes had the highest number of WBCs and shorter EFS or OS, and patients with CCT haplotype had the lowest number of WBCs and longer EFS or OS. These results provided evidence for the impact of these polymorphisms on susceptibility and response to therapy in children with ALL.
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Affiliation(s)
- Zahra Ghasemi
- Department of Immunology, Medical School, Shiraz University of Medical Sciences, Shiraz, 71345-1798, Iran
| | - Kurosh Kalantar
- Department of Immunology, Medical School, Shiraz University of Medical Sciences, Shiraz, 71345-1798, Iran
| | - Zahra Amirghofran
- Department of Immunology, Medical School, Shiraz University of Medical Sciences, Shiraz, 71345-1798, Iran. .,Autoimmune Diseases Research Center, Shiraz University of Medical Sciences, Shiraz, 71345-1798, Iran.
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Association of Ulcerative Colitis with FOXP3 Gene Polymorphisms and Its Colonic Expression in Chinese Patients. Gastroenterol Res Pract 2019; 2019:4052168. [PMID: 30918515 PMCID: PMC6409000 DOI: 10.1155/2019/4052168] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Revised: 12/06/2018] [Accepted: 12/20/2018] [Indexed: 12/13/2022] Open
Abstract
Abnormalities of forkhead box P3 (FOXP3) are implicated in various autoimmune diseases. This study is aimed at investigating the association of ulcerative colitis (UC) with FOXP3 polymorphisms and its colonic expression in Chinese patients. Polymorphisms of rs3761548, rs2232365, rs2294021, and rs3761547 were examined in 472 UC patients and 525 healthy controls using the SNaPshot method. The colonic expression of FOXP3 mRNA and protein was assayed in inflammatory mucosa of 34 UC patients and normal mucosa of 36 patients with benign sigmoid polyps (normal controls) using real-time quantitative polymerase chain reaction and immunohistochemical analysis. All data were handled separately for females and males. As a result, the carrier frequencies with at least one variant allele of rs3761548, rs2232365, and rs229402 increased in female and male UC patients compared with healthy controls. Significant differences in these carrier frequencies were also observed between patients with mild and moderate UC and patients with severe UC. The expression of FOXP3 was higher in UC patients (both males and females), especially those with severe UC, than in normal controls. The expression of FOXP3 was downregulated in UC patients having at least one variant allele compared with UC patients having no variant allele of rs3761548, rs2232365, and rs2294021. Male gender (β = −0.341), rs2294021 variation (β = −0.503), and severe UC (β = 0.361) were independently related to the mRNA expression of FOXP3 in UC patients. Together, our findings indicated that FOXP3 (rs3761548, rs2232365, and rs2294021) variations increased the risk of UC and were associated with the lower colonic expression of FOXP3 in UC patients.
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Rahman R, Sharma I, Gahlot LK, Hasija Y. DermaGene and VitmiRS: a comprehensive systems analysis of genetic dermatological disorders. BIOMEDICAL DERMATOLOGY 2018. [DOI: 10.1186/s41702-018-0028-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Safari MR, Ghafouri-Fard S, Noroozi R, Sayad A, Omrani MD, Komaki A, Eftekharian MM, Taheri M. FOXP3 gene variations and susceptibility to autism: A case-control study. Gene 2016; 596:119-122. [PMID: 27751813 DOI: 10.1016/j.gene.2016.10.019] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2016] [Revised: 09/27/2016] [Accepted: 10/13/2016] [Indexed: 12/11/2022]
Abstract
Autism Spectrum Disorders (ASD) are a group of heterogeneous neurodevelopmental disorders associated with immune system dysregulation. There are supporting evidences for the role of Forkhead Box P3 (FOXP3) gene as a lineage specification factor of regulatory T cells in the pathogenesis of ASD. The aim of this study was to explore possible relationship between genetic variants rs2232365 and rs3761548 of FOXP3 and ASD in 523 ASD patients versus 472 control individuals. Allele frequency analyses showed significant overpresentation of rs2232365-G allele in cases versus controls. In addition, rs2232365 GG genotype was associated with ASD in dominant inheritance model. Haplotype analysis revealed no significant association of any estimated block of rs2232365/rs3761548 with ASD. Our study indicated that rs2232365 is associated with ASD.
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Affiliation(s)
- Mohammad Reza Safari
- Neurophysiology Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Soudeh Ghafouri-Fard
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Rezvan Noroozi
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Arezou Sayad
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mir Davood Omrani
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Urogenital Stem Cell Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Alireza Komaki
- Neurophysiology Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
| | | | - Mohammad Taheri
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Urogenital Stem Cell Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Effect of Purified Mushroom Tyrosinase on Melanin Content and Melanogenic Protein Expression. BIOTECHNOLOGY RESEARCH INTERNATIONAL 2016; 2016:9706214. [PMID: 27699070 PMCID: PMC5028865 DOI: 10.1155/2016/9706214] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/08/2016] [Revised: 07/02/2016] [Accepted: 07/17/2016] [Indexed: 11/24/2022]
Abstract
In mammalian melanocytes, melanosome is a highly specialized organelle where melanin is synthesized. Melanin synthesis is controlled by tyrosinase, the vital enzyme in melanogenic pathway. The present investigation is based on an effect of purified mushroom tyrosinase of Agaricus bisporus on B16F10 melanocytes for the melanin production via blocking pigment cell machinery. Using B16F10 melanocytes showed that the stimulation of melanogenesis by purified tyrosinase is due to increased tyrosinase absorption. Cellular tyrosinase activity and melanin content in B16F10 melanocytes were increased by purified tyrosinase in a dose-dependent manner. Western blot analysis revealed that cellular tyrosinase levels were enhanced after treatment with purified tyrosinase for 48 hours. Furthermore, tyrosinase induced phosphorylation of cyclic adenosine monophosphate (cAMP) response element-binding protein (CREB) in a dose-dependent manner. The purified tyrosinase-mediated increase of tyrosinase activity was significantly attenuated by H89, LY294002, Ro-32-0432, and PD98059, cAMP-dependent protein kinase inhibitors. The results indicate that purified tyrosinase can be used as contestant for the treatment of vitiligous skin conditions.
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