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Šutić Udović I, Hlača N, Massari LP, Brajac I, Kaštelan M, Vičić M. Deciphering the Complex Immunopathogenesis of Alopecia Areata. Int J Mol Sci 2024; 25:5652. [PMID: 38891839 PMCID: PMC11172390 DOI: 10.3390/ijms25115652] [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: 04/30/2024] [Revised: 05/15/2024] [Accepted: 05/22/2024] [Indexed: 06/21/2024] Open
Abstract
Alopecia areata (AA) is an autoimmune-mediated disorder in which the proximal hair follicle (HF) attack results in non-scarring partial to total scalp or body hair loss. Despite the growing knowledge about AA, its exact cause still needs to be understood. However, immunity and genetic factors are affirmed to be critical in AA development. While the genome-wide association studies proved the innate and acquired immunity involvement, AA mouse models implicated the IFN-γ- and cytotoxic CD8+ T-cell-mediated immune response as the main drivers of disease pathogenesis. The AA hair loss is caused by T-cell-mediated inflammation in the HF area, disturbing its function and disrupting the hair growth cycle without destroying the follicle. Thus, the loss of HF immune privilege, autoimmune HF destruction mediated by cytotoxic mechanisms, and the upregulation of inflammatory pathways play a crucial role. AA is associated with concurrent systemic and autoimmune disorders such as atopic dermatitis, vitiligo, psoriasis, and thyroiditis. Likewise, the patient's quality of life (QoL) is significantly impaired by morphologic disfigurement caused by the illness. The patients experience a negative impact on psychological well-being and self-esteem and may be more likely to suffer from psychiatric comorbidities. This manuscript aims to present the latest knowledge on the pathogenesis of AA, which involves genetic, epigenetic, immunological, and environmental factors, with a particular emphasis on immunopathogenesis.
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Affiliation(s)
| | | | - Larisa Prpić Massari
- Department of Dermatovenereology, Clinical Hospital Centre Rijeka, Medical Faculty, University of Rijeka, Krešimirova 42, 51000 Rijeka, Croatia; (I.Š.U.); (N.H.); (I.B.); (M.K.); (M.V.)
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2
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Hossain MM, Khalid A, Akhter Z, Parveen S, Ayaz MO, Bhat AQ, Badesra N, Showket F, Dar MS, Ahmed F, Dhiman S, Kumar M, Singh U, Hussain R, Keshari P, Mustafa G, Nargorta A, Taneja N, Gupta S, Mir RA, Kshatri AS, Nandi U, Khan N, Ramajayan P, Yadav G, Ahmed Z, Singh PP, Dar MJ. Discovery of a novel and highly selective JAK3 inhibitor as a potent hair growth promoter. J Transl Med 2024; 22:370. [PMID: 38637842 PMCID: PMC11025159 DOI: 10.1186/s12967-024-05144-4] [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: 12/06/2023] [Accepted: 03/23/2024] [Indexed: 04/20/2024] Open
Abstract
JAK-STAT signalling pathway inhibitors have emerged as promising therapeutic agents for the treatment of hair loss. Among different JAK isoforms, JAK3 has become an ideal target for drug discovery because it only regulates a narrow spectrum of γc cytokines. Here, we report the discovery of MJ04, a novel and highly selective 3-pyrimidinylazaindole based JAK3 inhibitor, as a potential hair growth promoter with an IC50 of 2.03 nM. During in vivo efficacy assays, topical application of MJ04 on DHT-challenged AGA and athymic nude mice resulted in early onset of hair regrowth. Furthermore, MJ04 significantly promoted the growth of human hair follicles under ex-vivo conditions. MJ04 exhibited a reasonably good pharmacokinetic profile and demonstrated a favourable safety profile under in vivo and in vitro conditions. Taken together, we report MJ04 as a highly potent and selective JAK3 inhibitor that exhibits overall properties suitable for topical drug development and advancement to human clinical trials.
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Affiliation(s)
- Md Mehedi Hossain
- Laboratory of Cell and Molecular Biology, Pharmacology Division, CSIR-Indian Institute of Integrative Medicine, Jammu, Jammu and Kashmir, 180001, India
- Academy of Scientific & Innovative Research, Ghaziabad, Uttar Pradesh, 201002, India
| | - Arfan Khalid
- Academy of Scientific & Innovative Research, Ghaziabad, Uttar Pradesh, 201002, India
- Pharmacology Division, CSIR-Indian Institute of Integrative Medicine, Jammu, Jammu and Kashmir, 180001, India
| | - Zaheen Akhter
- Academy of Scientific & Innovative Research, Ghaziabad, Uttar Pradesh, 201002, India
- Natural Products and Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Jammu, Jammu and Kashmir, 180001, India
| | - Sabra Parveen
- Laboratory of Cell and Molecular Biology, Pharmacology Division, CSIR-Indian Institute of Integrative Medicine, Jammu, Jammu and Kashmir, 180001, India
- Academy of Scientific & Innovative Research, Ghaziabad, Uttar Pradesh, 201002, India
| | - Mir Owais Ayaz
- Laboratory of Cell and Molecular Biology, Pharmacology Division, CSIR-Indian Institute of Integrative Medicine, Jammu, Jammu and Kashmir, 180001, India
- Academy of Scientific & Innovative Research, Ghaziabad, Uttar Pradesh, 201002, India
| | - Aadil Qadir Bhat
- Laboratory of Cell and Molecular Biology, Pharmacology Division, CSIR-Indian Institute of Integrative Medicine, Jammu, Jammu and Kashmir, 180001, India
- Academy of Scientific & Innovative Research, Ghaziabad, Uttar Pradesh, 201002, India
| | - Neetu Badesra
- Laboratory of Cell and Molecular Biology, Pharmacology Division, CSIR-Indian Institute of Integrative Medicine, Jammu, Jammu and Kashmir, 180001, India
- Academy of Scientific & Innovative Research, Ghaziabad, Uttar Pradesh, 201002, India
| | - Farheen Showket
- Laboratory of Cell and Molecular Biology, Pharmacology Division, CSIR-Indian Institute of Integrative Medicine, Jammu, Jammu and Kashmir, 180001, India
- Academy of Scientific & Innovative Research, Ghaziabad, Uttar Pradesh, 201002, India
| | - Mohmmad Saleem Dar
- Laboratory of Cell and Molecular Biology, Pharmacology Division, CSIR-Indian Institute of Integrative Medicine, Jammu, Jammu and Kashmir, 180001, India
- Academy of Scientific & Innovative Research, Ghaziabad, Uttar Pradesh, 201002, India
| | - Farhan Ahmed
- Division of Neuroscience and Ageing Biology, CSIR-Central Drug Research Institute (CDRI), Lucknow, 226031, India
| | - Sumit Dhiman
- Academy of Scientific & Innovative Research, Ghaziabad, Uttar Pradesh, 201002, India
- Pharmacology Division, CSIR-Indian Institute of Integrative Medicine, Jammu, Jammu and Kashmir, 180001, India
| | - Mukesh Kumar
- Medicinal Product Chemistry, Sussex Drug Discovery Centre, School of Life Sciences, University of Sussex, Falmer, Brighton, BN1 9QG, UK
| | - Umed Singh
- Academy of Scientific & Innovative Research, Ghaziabad, Uttar Pradesh, 201002, India
- Natural Products and Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Jammu, Jammu and Kashmir, 180001, India
| | - Razak Hussain
- Department of Entomology, University of Illinois Urbana-Champaign, Urbana, IL, 61801, USA
| | - Pankaj Keshari
- Department of Biochemistry, All India Institute of Medical Sciences, New Delhi, India
| | - Ghulam Mustafa
- Academy of Scientific & Innovative Research, Ghaziabad, Uttar Pradesh, 201002, India
- Pharmacology Division, CSIR-Indian Institute of Integrative Medicine, Jammu, Jammu and Kashmir, 180001, India
| | - Amit Nargorta
- Academy of Scientific & Innovative Research, Ghaziabad, Uttar Pradesh, 201002, India
- Natural Products and Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Jammu, Jammu and Kashmir, 180001, India
| | - Neha Taneja
- Department of Dermatology and Venereology, All India Institute of Medical Sciences, New Delhi, India
| | - Somesh Gupta
- Department of Dermatology and Venereology, All India Institute of Medical Sciences, New Delhi, India
| | - Riyaz A Mir
- Department of Biochemistry, All India Institute of Medical Sciences, New Delhi, India
| | - Aravind Singh Kshatri
- Division of Neuroscience and Ageing Biology, CSIR-Central Drug Research Institute (CDRI), Lucknow, 226031, India
| | - Utpal Nandi
- Academy of Scientific & Innovative Research, Ghaziabad, Uttar Pradesh, 201002, India
- Pharmacology Division, CSIR-Indian Institute of Integrative Medicine, Jammu, Jammu and Kashmir, 180001, India
| | - Nooruddin Khan
- Department of Animal Biology, School of Life Sciences, University of Hyderabad, Gachibowli, Hyderabad, 500046, India
| | - P Ramajayan
- Academy of Scientific & Innovative Research, Ghaziabad, Uttar Pradesh, 201002, India
- Pharmacology Division, CSIR-Indian Institute of Integrative Medicine, Jammu, Jammu and Kashmir, 180001, India
| | - Govind Yadav
- Academy of Scientific & Innovative Research, Ghaziabad, Uttar Pradesh, 201002, India
- Pharmacology Division, CSIR-Indian Institute of Integrative Medicine, Jammu, Jammu and Kashmir, 180001, India
| | - Zabeer Ahmed
- Academy of Scientific & Innovative Research, Ghaziabad, Uttar Pradesh, 201002, India
- Pharmacology Division, CSIR-Indian Institute of Integrative Medicine, Jammu, Jammu and Kashmir, 180001, India
| | - Parvinder Pal Singh
- Academy of Scientific & Innovative Research, Ghaziabad, Uttar Pradesh, 201002, India.
- Natural Products and Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Jammu, Jammu and Kashmir, 180001, India.
| | - Mohd Jamal Dar
- Laboratory of Cell and Molecular Biology, Pharmacology Division, CSIR-Indian Institute of Integrative Medicine, Jammu, Jammu and Kashmir, 180001, India.
- Academy of Scientific & Innovative Research, Ghaziabad, Uttar Pradesh, 201002, India.
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He J, Zhao M, Ma X, Li D, Kong J, Yang F. The role and application of three IFN-related reactions in psoriasis. Biomed Pharmacother 2023; 167:115603. [PMID: 37776636 DOI: 10.1016/j.biopha.2023.115603] [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: 07/10/2023] [Revised: 09/16/2023] [Accepted: 09/26/2023] [Indexed: 10/02/2023] Open
Abstract
The pathophysiology of psoriasis is a highly complicated one. Due to the disease's specificity, it not only affects the patient's skin negatively but also manifests systemic pathological changes. These clinical symptoms seriously harm the patient's physical and mental health. IFN, a common immunomodulatory factor, has been increasingly demonstrated to have a significant role in the development of psoriatic skin disease. Psoriasis is connected with a variety of immunological responses. New targets for the therapy of autoimmune skin diseases may emerge from further research on the mechanics of the associated IFN upstream and downstream pathways. Different forms of IFNs do not behave in the same manner in psoriasis, and understanding how different types of IFNs are involved in psoriasis may provide a better notion for future research. This review focuses on the involvement of three types of IFNs in psoriasis and related therapeutic investigations, briefly describing the three IFNs' production and signaling, as well as the dual effects of IFNs on the skin. It is intended that it would serve as a model for future research.
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Affiliation(s)
- Jiaming He
- College of Traditional Chinese medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Minghui Zhao
- College of Traditional Chinese medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Xiaoyu Ma
- College of Traditional Chinese medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Dilong Li
- College of Traditional Chinese medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Jingyan Kong
- College of Traditional Chinese medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China.
| | - Fan Yang
- College of Traditional Chinese medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China.
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Hao L, Nam KH, Lee GJ, Kim D, Shin JM, Lee Y, Kim CD, Kim SJ, Yun SK, Park BH, Park J. SIRT1 downregulation provokes immune-inflammatory responses in hair follicle outer root sheath cells and may contribute to development of alopecia areata. J Dermatol Sci 2023:S0923-1811(23)00126-3. [PMID: 37268558 DOI: 10.1016/j.jdermsci.2023.05.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 05/04/2023] [Accepted: 05/23/2023] [Indexed: 06/04/2023]
Abstract
BACKGROUND Silent information regulator 1 (SIRT1), a type III histone deacetylase, is involved in various cutaneous and systemic autoimmune diseases including systemic lupus erythematosus, rheumatoid arthritis, and psoriasis. However, little is known about the role of SIRT1 in the development of alopecia areata (AA). OBJECTIVES This study investigated whether SIRT1 regulates the hair follicle immune system and is involved in AA pathogenesis. METHODS SIRT1 expression in human scalp tissue was analyzed using immunohistochemical staining, qPCR, and western blotting. The regulatory effect of SIRT1 was evaluated after stimulation with the double-stranded RNA mimic polyinosinic:polycytidylic acid (poly I:C) in hair follicle outer root sheath (ORS) cells and C3H/HeJ mice. RESULTS SIRT1 expression was significantly reduced in the AA scalp compared to the normal scalp. SIRT1 inhibition upregulated MHC class I polypeptide-related sequence A and UL16 binding protein 3 in hair follicle ORS cells. SIRT1 inhibition also promoted the production of Th1 cytokines (IFN-γ and TNF-α), IFN-inducible chemokines (CXCL9 and CXCL10), and T cell migration in ORS cells. Conversely, SIRT1 activation suppressed the autoreactive inflammatory responses. The counteractive effect of the immune response by SIRT1 was mediated through the deacetylation of NF-κB and phosphorylation of STAT3. CONCLUSION SIRT1 downregulation induces immune-inflammatory responses in hair follicle ORS cells and may contribute to AA development.
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Affiliation(s)
- Lihua Hao
- Department of Dermatology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
| | - Kyung-Hwa Nam
- Department of Dermatology, Jeonbuk National University Medical School, Jeonju, the Republic of Korea; Research Institute of Clinical Medicine of Jeonbuk National University and Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju, the Republic of Korea
| | - Geon-Jong Lee
- Department of Dermatology, Chungnam National University Medical School, Daejeon, the Republic of Korea
| | - Doyeon Kim
- Department of Dermatology, Chungnam National University Medical School, Daejeon, the Republic of Korea
| | - Jung-Min Shin
- Department of Dermatology, Chungnam National University Medical School, Daejeon, the Republic of Korea
| | - Young Lee
- Department of Dermatology, Chungnam National University Medical School, Daejeon, the Republic of Korea
| | - Chang-Deok Kim
- Department of Dermatology, Chungnam National University Medical School, Daejeon, the Republic of Korea
| | - Seong-Jin Kim
- Department of Dermatology, Chonnam National University Medical School, Kwangju, the Republic of Korea
| | - Seok-Kweon Yun
- Department of Dermatology, Jeonbuk National University Medical School, Jeonju, the Republic of Korea; Research Institute of Clinical Medicine of Jeonbuk National University and Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju, the Republic of Korea
| | - Byung-Hyun Park
- Research Institute of Clinical Medicine of Jeonbuk National University and Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju, the Republic of Korea; Department of Biochemistry, Jeonbuk National University Medical School, Jeonju, the Republic of Korea
| | - Jin Park
- Department of Dermatology, Jeonbuk National University Medical School, Jeonju, the Republic of Korea; Research Institute of Clinical Medicine of Jeonbuk National University and Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju, the Republic of Korea.
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Teng H, Chen H. Platelet-rich plasma in the treatment of alopecia areata after COVID-19 vaccination. Clin Case Rep 2023; 11:e7342. [PMID: 37192849 PMCID: PMC10182003 DOI: 10.1002/ccr3.7342] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 04/08/2023] [Accepted: 04/28/2023] [Indexed: 05/18/2023] Open
Abstract
Key Clinical Message Alopecia areata may develop in patients after COVID-19 vaccination. Platelet-rich plasma (PRP) has an outstanding anti-inflammatory effect and could be an alternative treatment for alopecia patients who are refractory or intolerant to corticosteroids. Abstract A 34-year-old female with no systemic illness presented with non-scarring hair loss after the second COVID-19 vaccination shot 4 weeks ago. The hair loss worsened and progressed to severe alopecia areata. We started double-spin PRP therapy. Her hair recovered completely after six courses of PRP treatment.
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Kang Y, Cai Y, Zhao Y, Yang Y. The gut microbiome and Alopecia areata: Implications for early diagnostic biomarkers and novel therapies. Front Nutr 2022; 9:979876. [PMID: 36185693 PMCID: PMC9520310 DOI: 10.3389/fnut.2022.979876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 08/26/2022] [Indexed: 11/18/2022] Open
Abstract
Alopecia areata (AA) accounts for the autoimmune disorder mediated by T cells, whose prognostic outcome cannot be predicted and curative treatment is unavailable at present. The AA pathogenic mechanism remains largely unclear, even though follicular attack has been suggested to result from that attack of immune privilege-losing hair follicles driven by immunity. Recently, gut microbiota is suggested to have an important effect on immunoregulation under autoimmune situations like AA. Fecal microbial transplantation (FMT) may be used to treat AA. Nonetheless, related research remains at the initial stage. To promote the rapid progress of relevant research, the present work aimed to shed more lights on gut microbiota's effect on AA, early diagnostic biomarker and FMT therapeutics.
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Affiliation(s)
- Yongbo Kang
- Department of Endocrinology, Affiliated Hospital of Yunnan University, Kunming, China
- Department of Microbiology and Immunology, School of Basic Medical Sciences, Shanxi Medical University, Taiyuan, China
- Yongbo Kang
| | - Yue Cai
- Department of Endocrinology, Affiliated Hospital of Yunnan University, Kunming, China
| | - Yanqin Zhao
- Department of Microbiology and Immunology, School of Basic Medical Sciences, Shanxi Medical University, Taiyuan, China
| | - Ying Yang
- Department of Endocrinology, Affiliated Hospital of Yunnan University, Kunming, China
- *Correspondence: Ying Yang
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Alghamdi MA, AL-Eitan LN, Aljamal HA, Shati AA, Alshehri MA. Genetic association of IL2RA, IL17RA, IL23R, and IL31RA single nucleotide polymorphisms with alopecia areata. Saudi J Biol Sci 2022; 29:103460. [PMID: 36248775 PMCID: PMC9562353 DOI: 10.1016/j.sjbs.2022.103460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 08/26/2022] [Accepted: 09/21/2022] [Indexed: 11/29/2022] Open
Abstract
The signalling of cytokine receptors plays a crucial role in regulating tolerance and immunity. Impaired immunological processes result in autoimmune inflammation that target the hair follicles, causing many hair disorders, mainly alopecia areata (AA). Therefore, polymorphisms in cytokine receptor genes are suggested to have a significant impact on the pathogenesis of AA, a disease with a multifactorial basis and uncertain etiology. In the present study, 152 AA patients of the Jordanian population were investigated for their genetic susceptibility to develop AA compared to 150 control subjects. Genomic DNA extraction and genotyping had conducted for IL17RA (rs879575, rs2229151, and rs4819554), IL2RA (rs3118470), IL23R (rs10889677), and IL31RA (rs161704) using the Sequenom MassARRAY® system. The allele frequency of IL17RA rs879575 is significantly higher in patients, while no statistical differences were found for IL2RA, IL23R, and IL31RA SNPs. Also, the recessive model of IL31RA rs161704 showing that AA genotype is significantly associated with AA development. To date, there is no published data regarding the association between AA and the selected genetic variants in our population. However, this study's findings assert that SNPs of IL17RA and IL31RA are linked to AA susceptibility in Jordanian patients.
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Affiliation(s)
- Mansour A. Alghamdi
- Department of Anatomy, College of Medicine, King Khalid University, Abha 61421, Saudi Arabia
- Genomics and Personalized Medicine Unit, College of Medicine, King Khalid University, Abha 61421, Saudi Arabia
| | - Laith N. AL-Eitan
- Department of Biotechnology and Genetic Engineering, Jordan University of Science and Technology, Irbid 22110, Jordan
- Corresponding author at: Biotechnology & Genetic Engineering Department, Faculty of Science and Arts, Jordan University of Science and Technology, P.O. Box 3030, Irbid 22110, Jordan.
| | - Hanan A. Aljamal
- Department of Biotechnology and Genetic Engineering, Jordan University of Science and Technology, Irbid 22110, Jordan
| | - Ayed A. Shati
- Department of Child Health, College of Medicine, King Khalid University, Abha 61421, Saudi Arabia
| | - Mohammed A. Alshehri
- Department of Child Health, College of Medicine, King Khalid University, Abha 61421, Saudi Arabia
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Paldor M, Levkovitch-Siany O, Eidelshtein D, Adar R, Enk CD, Marmary Y, Elgavish S, Nevo Y, Benyamini H, Plaschkes I, Klein S, Mali A, Rose-John S, Peled A, Galun E, Axelrod JH. Single-cell transcriptomics reveals a senescence-associated IL-6/CCR6 axis driving radiodermatitis. EMBO Mol Med 2022; 14:e15653. [PMID: 35785521 PMCID: PMC9358397 DOI: 10.15252/emmm.202115653] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 05/31/2022] [Accepted: 06/01/2022] [Indexed: 12/22/2022] Open
Abstract
Irradiation‐induced alopecia and dermatitis (IRIAD) are two of the most visually recognized complications of radiotherapy, of which the molecular and cellular basis remains largely unclear. By combining scRNA‐seq analysis of whole skin‐derived irradiated cells with genetic ablation and molecular inhibition studies, we show that senescence‐associated IL‐6 and IL‐1 signaling, together with IL‐17 upregulation and CCR6+‐mediated immune cell migration, are crucial drivers of IRIAD. Bioinformatics analysis colocalized irradiation‐induced IL‐6 signaling with senescence pathway upregulation largely within epidermal hair follicles, basal keratinocytes, and dermal fibroblasts. Loss of cytokine signaling by genetic ablation in IL‐6−/− or IL‐1R−/− mice, or by molecular blockade, strongly ameliorated IRIAD, as did deficiency of CCL20/CCR6‐mediated immune cell migration in CCR6−/− mice. Moreover, IL‐6 deficiency strongly reduced IL‐17, IL‐22, CCL20, and CCR6 upregulation, whereas CCR6 deficiency reciprocally diminished IL‐6, IL‐17, CCL3, and MHC upregulation, suggesting that proximity‐dependent cellular cross talk promotes IRIAD. Therapeutically, topical application of Janus kinase blockers or inhibition of T‐cell activation by cyclosporine effectively reduced IRIAD, suggesting the potential of targeted approaches for the treatment of dermal side effects in radiotherapy patients.
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Affiliation(s)
- Mor Paldor
- The Goldyne-Savad Institute of Gene Therapy, Hadassah Hebrew University Hospital, Jerusalem, Israel
| | - Orr Levkovitch-Siany
- The Goldyne-Savad Institute of Gene Therapy, Hadassah Hebrew University Hospital, Jerusalem, Israel
| | - Dana Eidelshtein
- The Goldyne-Savad Institute of Gene Therapy, Hadassah Hebrew University Hospital, Jerusalem, Israel
| | - Revital Adar
- The Goldyne-Savad Institute of Gene Therapy, Hadassah Hebrew University Hospital, Jerusalem, Israel
| | - Claes D Enk
- Department of Dermatology, Hadassah Hebrew University Hospital, Jerusalem, Israel
| | - Yitzhak Marmary
- The Goldyne-Savad Institute of Gene Therapy, Hadassah Hebrew University Hospital, Jerusalem, Israel
| | - Sharona Elgavish
- Info-CORE, Bioinformatics Unit of the I-CORE, Hebrew University of Jerusalem, Jerusalem, Israel
| | - Yuval Nevo
- Info-CORE, Bioinformatics Unit of the I-CORE, Hebrew University of Jerusalem, Jerusalem, Israel
| | - Hadar Benyamini
- Info-CORE, Bioinformatics Unit of the I-CORE, Hebrew University of Jerusalem, Jerusalem, Israel
| | - Inbar Plaschkes
- Info-CORE, Bioinformatics Unit of the I-CORE, Hebrew University of Jerusalem, Jerusalem, Israel
| | - Shiri Klein
- The Goldyne-Savad Institute of Gene Therapy, Hadassah Hebrew University Hospital, Jerusalem, Israel
| | - Alex Mali
- Department of Pathology, Hadassah Hebrew University Hospital, Jerusalem, Israel
| | - Stefan Rose-John
- Institut für Biochemie, Christian-Albrechts-Universität zu Kiel, Kiel, Germany
| | - Amnon Peled
- The Goldyne-Savad Institute of Gene Therapy, Hadassah Hebrew University Hospital, Jerusalem, Israel
| | - Eithan Galun
- The Goldyne-Savad Institute of Gene Therapy, Hadassah Hebrew University Hospital, Jerusalem, Israel
| | - Jonathan H Axelrod
- The Goldyne-Savad Institute of Gene Therapy, Hadassah Hebrew University Hospital, Jerusalem, Israel
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9
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The Probable Mechanism of Hair Loss in Patients With COVID-19. Am J Dermatopathol 2022; 44:539-541. [PMID: 35170474 DOI: 10.1097/dad.0000000000002145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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10
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Kong J, Qiang W, Jiang J, Hu X, Chen Y, Guo Y, Liu H, Sun S, Gao H, Zhang Y, Gao Y, Liu X, Liu X, Li H. Safflower oil body nanoparticles deliver hFGF10 to hair follicles and reduce microinflammation to accelerate hair regeneration in androgenetic alopecia. Int J Pharm 2022; 616:121537. [PMID: 35150848 DOI: 10.1016/j.ijpharm.2022.121537] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 01/19/2022] [Accepted: 01/29/2022] [Indexed: 12/19/2022]
Abstract
Androgenetic alopecia (AGA) affects physical and mental health with limited therapeutic options. Novel materials and delivery methods have considerable potential to improve the current paradigm of treatment. In this study, we used a novel plant nanoparticle of safflower oil body (SOB) loaded with human fibroblast growth factor 10 (hFGF10) to target hair follicles and accelerate hair regeneration in AGA mice with few adverse effects. Our data revealed that the average particle size of SOB-hFGF10 was 226.73 ± 9.98 nm, with a spherical and uniform structure, and that SOB-hFGF10 was quicker to preferentially penetrate into hair follicles than hFGF2 alone. Using a mouse model of AGA, SOB-hFGF10 was found to significantly improve hair regeneration without any significant toxicity. Furthermore, SOB-hFGF10 inhibited dihydrotestosterone (DHT)-induced TNF-α, IL-1β, and IL-6 overproduction in macrophages in relation to hair follicle microinflammation, thereby enhancing the proliferation of dermal papilla cells. Overall, this study provides an applicable therapeutic method through targeting hair follicles and reducing microinflammation to accelerate hair regeneration in AGA.
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Affiliation(s)
- Jie Kong
- College of Life Science, Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development, Jilin Agricultural University, Changchun 130118, China
| | - Weidong Qiang
- College of Life Science, Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development, Jilin Agricultural University, Changchun 130118, China
| | - Jingyi Jiang
- College of Life Science, Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development, Jilin Agricultural University, Changchun 130118, China
| | - Xingli Hu
- College of Life Science, Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development, Jilin Agricultural University, Changchun 130118, China
| | - Yining Chen
- College of Life Science, Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development, Jilin Agricultural University, Changchun 130118, China
| | - YongXin Guo
- College of Life Science, Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development, Jilin Agricultural University, Changchun 130118, China
| | - Hongxiang Liu
- College of Life Science, Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development, Jilin Agricultural University, Changchun 130118, China
| | - Siming Sun
- College of Life Science, Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development, Jilin Agricultural University, Changchun 130118, China
| | - Hongtao Gao
- College of Tropical Crops, Hainan University, Haikou, China
| | - Yuan Zhang
- College of Life Science, Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development, Jilin Agricultural University, Changchun 130118, China
| | - Yanyan Gao
- College of Life Science, Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development, Jilin Agricultural University, Changchun 130118, China
| | - Xiuming Liu
- College of Life Science, Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development, Jilin Agricultural University, Changchun 130118, China
| | - Xin Liu
- College of Life Science, Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development, Jilin Agricultural University, Changchun 130118, China.
| | - Haiyan Li
- College of Life Science, Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development, Jilin Agricultural University, Changchun 130118, China; College of Tropical Crops, Hainan University, Haikou, China.
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11
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Rajabi F, Abdollahimajd F, Jabalameli N, Nassiri Kashani M, Firooz A. The Immunogenetics of Alopecia areata. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2022; 1367:19-59. [DOI: 10.1007/978-3-030-92616-8_2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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12
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Tabatabaei-Panah PS, Moravvej H, Hajihasani M, Mousavi M, Ludwig RJ, Akbarzadeh R. The MCP-1 rs1024611 and MTHFR rs1801133 gene variations and expressions in alopecia areata: A pilot study. IMMUNITY INFLAMMATION AND DISEASE 2021; 10:209-217. [PMID: 34752683 PMCID: PMC8767509 DOI: 10.1002/iid3.564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 10/31/2021] [Accepted: 11/02/2021] [Indexed: 12/01/2022]
Abstract
Background Monocyte chemoattractant protein‐1 (MCP‐1) is highly expressed by lymphocytes at skin sites affected by alopecia areata (AA). Variations in MCP‐1 as well as in methylene‐tetrahydrofolate reductase (MTHFR), a key enzyme related to many inflammatory pathologies, have been associated with several autoimmune disorders. This study was designed to test a possible association between MCP‐1 and MTHFR variations and altered expression of their genes and the risk of AA. Methods Blood samples of patients (60) suffering from AA as well as healthy subjects (60) were collected. Gene expression levels of MCP‐1 and MTHFR were evaluated by real‐time reverse‐transcription polymerase chain reaction analysis. Moreover, MCP‐1 rs1024611 (A‐2518G) and MTHFR rs1801133 (C677T) polymorphisms were genotyped by using polymerase chain reaction‐restriction fragment length polymorphism assays. Results In contrast to MCP‐1, the MTHFR gene expression was found to be significantly higher in patients than in controls. Further stratification of the patients revealed that polymorphic genotypes in MCP‐1 (AG + GG) and MTHFR (CT + TT) could significantly alter gene expression levels. Elevation of MCP‐1 expression was significantly associated with the total number of variant MCP‐1 and MTHFR alleles. However, no statistically significant difference was noticed in the genotypic distribution of MCP‐1 and MTHFR variations between patients and controls. Conclusion In summary, despite MCP‐1 rs1024611 and MTHFR rs1801133 variations are not associated with AA risk, they may implicate the disease pathogenesis by influencing MCP‐1 activity.
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Affiliation(s)
| | - Hamideh Moravvej
- Skin Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mahsa Hajihasani
- Department of Biology, East Tehran Branch, Islamic Azad University, Tehran, Iran
| | - Mahsa Mousavi
- Department of Biology, East Tehran Branch, Islamic Azad University, Tehran, Iran
| | - Ralf J Ludwig
- Lübeck Institute of Experimental Dermatology, University of Lübeck, Germany
| | - Reza Akbarzadeh
- Skin Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Lübeck Institute of Experimental Dermatology, University of Lübeck, Germany.,Institute of Clinical Chemistry and Laboratory Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
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13
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Deng W, Zhang Y, Wang W, Song A, Mukama O, Huang J, Han X, Deng S, Lin Z, Habimana JDD, Huang R, Peng K, Ni B, Zhang S, Yan X, Li J, Wu LP, Li Z. Hair follicle-derived mesenchymal stem cells decrease alopecia areata mouse hair loss and reduce inflammation around the hair follicle. Stem Cell Res Ther 2021; 12:548. [PMID: 34674748 PMCID: PMC8532319 DOI: 10.1186/s13287-021-02614-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Accepted: 09/29/2021] [Indexed: 12/03/2022] Open
Abstract
Background Alopecia areata (AA) is a common autoimmune hair loss disease with increasing incidence. Corticosteroids are the most widely used for hair loss treatment; however, long-term usage of hormonal drugs is associated with various side effects. Mesenchymal stem cells (MSCs) therapy has been studied extensively to curb autoimmune diseases without affecting immunity against diseases.
Methods Hair follicle-derived MSCs (HF-MSCs) were harvested from the waste material of hair transplants, isolated and expanded. The therapeutic effect of HF-MSCs for AA treatment was investigated in vitro AA-like hair follicle organ model and in vivo C3H/HeJ AA mice model. Results AA-like hair follicle organ in vitro model was successfully established by pre-treatment of mouse vibrissa follicles by interferon-γ (IFN-γ). The AA-like symptoms were relieved when IFN-γ induced AA in vitro model was co-cultured with HF-MSC for 2 days. In addition, when skin grafted C3H/HeJ AA mice models were injected with 106 HF-MSCs once a week for 3 weeks, the transcription profiling and immunofluorescence analysis depicted that HF-MSCs treatment significantly decreased mouse hair loss and reduced inflammation around HF both in vitro and in vivo. Conclusions This study provides a new therapeutic approach for alopecia areata based on HF-MSCs toward its future clinical application. Supplementary Information The online version contains supplementary material available at 10.1186/s13287-021-02614-0.
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Affiliation(s)
- Weiyue Deng
- Department of Anatomy and Neurobiology, Xiangya School of Medicine, Central South University, Changsha, China
| | - Yuying Zhang
- Department of Anatomy and Neurobiology, Xiangya School of Medicine, Central South University, Changsha, China
| | - Wei Wang
- Department of Anatomy and Neurobiology, Xiangya School of Medicine, Central South University, Changsha, China
| | - Aishi Song
- Department of Anatomy and Neurobiology, Xiangya School of Medicine, Central South University, Changsha, China
| | - Omar Mukama
- CAS Key Laboratory of Regenerative Biology, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - Jiarong Huang
- Center for Chemical Biology and Drug Discovery, Guangzhou Institute of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - Xiaobo Han
- CAS Key Laboratory of Regenerative Biology, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - Sihao Deng
- Department of Anatomy and Neurobiology, Xiangya School of Medicine, Central South University, Changsha, China
| | - Zuoxian Lin
- CAS Key Laboratory of Regenerative Biology, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - Jean du Dieu Habimana
- CAS Key Laboratory of Regenerative Biology, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - Rongqi Huang
- CAS Key Laboratory of Regenerative Biology, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - Kexin Peng
- NHC Key Laboratory of Birth Defect for Research and Prevention, Hunan Provincial Maternal and Child Health Care Hospital, Changsha, China
| | - Bing Ni
- NHC Key Laboratory of Birth Defect for Research and Prevention, Hunan Provincial Maternal and Child Health Care Hospital, Changsha, China
| | | | - Xiaoxin Yan
- Department of Anatomy and Neurobiology, Xiangya School of Medicine, Central South University, Changsha, China
| | - Ji Li
- Department of Anatomy and Neurobiology, Xiangya School of Medicine, Central South University, Changsha, China
| | - Lin-Ping Wu
- Center for Chemical Biology and Drug Discovery, Guangzhou Institute of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.
| | - Zhiyuan Li
- Department of Anatomy and Neurobiology, Xiangya School of Medicine, Central South University, Changsha, China. .,CAS Key Laboratory of Regenerative Biology, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China. .,NHC Key Laboratory of Birth Defect for Research and Prevention, Hunan Provincial Maternal and Child Health Care Hospital, Changsha, China. .,Changsha Stomatological Hospital, Changsha, China. .,Bioland Laboratory, Guangzhou, China. .,GZMU-GIBH Joint School of Life Sciences, Guangzhou Medical University, Guangzhou, China.
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14
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Glickman JW, Dubin C, Dahabreh D, Han J, Del Duca E, Estrada YD, Zhang N, Kimmel GW, Singer G, Krueger JG, Pavel AB, Guttman‐Yassky E. An integrated scalp and blood biomarker approach suggests the systemic nature of alopecia areata. Allergy 2021; 76:3053-3065. [PMID: 33721346 DOI: 10.1111/all.14814] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 02/01/2021] [Accepted: 02/19/2021] [Indexed: 12/19/2022]
Abstract
BACKGROUND Alopecia areata (AA) is characterized by immune dysregulation in both scalp and blood, but a large-scale approach establishing biomarkers of AA incorporating both scalp tissue and serum compartments is lacking. We aimed to characterize the transcriptomic signature of AA lesional and nonlesional scalp compared to healthy scalp and determine its relationship with the blood proteome in the same individuals, with comparative correlations to clinical AA disease severity. METHODS We evaluated lesional and nonlesional scalp tissues and serum from patients with moderate-to-severe AA (n = 18) and healthy individuals (n = 8). We assessed 33,118 genes in AA scalp tissue using RNAseq transcriptomic evaluation and 340 inflammatory proteins in serum using OLINK high-throughput proteomics. Univariate and multivariate approaches were used to correlate disease biomarkers with Severity of Alopecia Tool (SALT). RESULTS A total of 608 inflammatory genes were differentially expressed in lesional AA scalp (fold change/FCH>1.5, false discovery rate/FDR<0.05) including Th1 (IFNG/IL12B/CXCL11), Th2 (IL13/CCL18), and T-cell activation-related (ICOS) products. Th1/Th2-related markers were significantly correlated with AA clinical severity in lesional/nonlesional tissue, while keratins (KRT35/KRT83/KRT81) were significantly downregulated in lesional compared to healthy scalp (p < .05). Expression of cardiovascular/atherosclerosis-related markers (MMP9/CCL2/IL1RL1/IL33R/ST2/AGER) in lesional scalp correlated with their corresponding serum expression (p < .05). AA scalp demonstrated significantly greater biomarker dysregulation compared to blood. An integrated multivariate approach combining scalp and serum biomarkers improved correlations with disease severity/SALT. CONCLUSION This study contributes a unique understanding of the phenotype of moderate-to-severe AA with an integrated scalp and serum biomarker model suggesting the systemic nature of the disease, advocating for the need for immune-based systemic treatment.
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Affiliation(s)
- Jacob W. Glickman
- Laboratory of Inflammatory Skin Diseases Department of Dermatology Icahn School of Medicine at Mount Sinai New York NY USA
| | - Celina Dubin
- Laboratory of Inflammatory Skin Diseases Department of Dermatology Icahn School of Medicine at Mount Sinai New York NY USA
| | - Dante Dahabreh
- Laboratory of Inflammatory Skin Diseases Department of Dermatology Icahn School of Medicine at Mount Sinai New York NY USA
| | - Joseph Han
- Laboratory of Inflammatory Skin Diseases Department of Dermatology Icahn School of Medicine at Mount Sinai New York NY USA
| | - Ester Del Duca
- Laboratory of Inflammatory Skin Diseases Department of Dermatology Icahn School of Medicine at Mount Sinai New York NY USA
| | - Yeriel D. Estrada
- Laboratory of Inflammatory Skin Diseases Department of Dermatology Icahn School of Medicine at Mount Sinai New York NY USA
| | - Ning Zhang
- Laboratory of Inflammatory Skin Diseases Department of Dermatology Icahn School of Medicine at Mount Sinai New York NY USA
| | - Grace W. Kimmel
- Laboratory of Inflammatory Skin Diseases Department of Dermatology Icahn School of Medicine at Mount Sinai New York NY USA
| | - Giselle Singer
- Laboratory of Inflammatory Skin Diseases Department of Dermatology Icahn School of Medicine at Mount Sinai New York NY USA
| | - James G. Krueger
- Laboratory for Investigative Dermatology The Rockefeller University New York NY USA
| | - Ana B. Pavel
- Laboratory of Inflammatory Skin Diseases Department of Dermatology Icahn School of Medicine at Mount Sinai New York NY USA
- Department of Biomedical Engineering The University of Mississippi University MS USA
| | - Emma Guttman‐Yassky
- Laboratory of Inflammatory Skin Diseases Department of Dermatology Icahn School of Medicine at Mount Sinai New York NY USA
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15
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Kageyama R, Honda T, Tokura Y. Acquired Idiopathic Generalized Anhidrosis (AIGA) and Its Complications: Implications for AIGA as an Autoimmune Disease. Int J Mol Sci 2021; 22:8389. [PMID: 34445091 PMCID: PMC8395056 DOI: 10.3390/ijms22168389] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 07/22/2021] [Accepted: 07/29/2021] [Indexed: 02/06/2023] Open
Abstract
Acquired idiopathic generalized anhidrosis (AIGA) is a rare disorder in which systemic anhidrosis/hypohidrosis occurs without causative dermatological, metabolic or neurological disorder. Most cases of AIGA have been reported in Asia, especially in Japan, but there have been only a few reports in Europe and the United States. Severe AIGA may result in heatstroke and can reduce quality of life due to restriction of exercise and outdoor works. AIGA is often accompanied by cholinergic urticaria (CholU), and it is thought that AIGA and CholU with anhidrosis/hypohidrosis belong to the same spectrum of the disease. However, the pathophysiology of AIGA has not yet been clarified. Decreased expression of cholinergic receptor M3 on the epithelial cells of eccrine sweat glands is often accompanied by T cell infiltration around eccrine apparatus, suggesting an immunological mechanism of disordered perspiration. AIGA is occasionally associated with various complications indicative of autoimmune disorders. The association of autoimmune complications further suggests that AIGA is an autoimmune disorder. Studies on complications may lead to a better understanding of the pathophysiology of AIGA.
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Affiliation(s)
- Reiko Kageyama
- Department of Dermatology, Hamamatsu University School of Medicine, Hamamatsu 431-3192, Japan;
| | - Tetsuya Honda
- Department of Dermatology, Hamamatsu University School of Medicine, Hamamatsu 431-3192, Japan;
| | - Yoshiki Tokura
- Allergic Disease Research Center and Department of Dermatology, Chutoen General Medical Center, Kakegawa 436-8555, Japan;
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16
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Dubin C, Del Duca E, Guttman-Yassky E. The IL-4, IL-13 and IL-31 pathways in atopic dermatitis. Expert Rev Clin Immunol 2021; 17:835-852. [PMID: 34106037 DOI: 10.1080/1744666x.2021.1940962] [Citation(s) in RCA: 62] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Introduction: Atopic dermatitis (AD) is the most common inflammatory skin disease. It has a complex pathophysiology, with a combination of immune dysregulation and intrinsic barrier defects driving cutaneous inflammation and allergic symptomatology. The IL-4, IL-13 and IL-31 inflammatory pathways have been identified as hallmark features in the pathogenesis of the disease, contributing uniquely and synergistically to immune and barrier abnormalities as well as the key symptoms, such as pruritis. Novel therapeutics that target these pathways have been under development to find treatments for AD.Areas covered: This review discusses the IL-4, IL-13 and IL-31 pathways in AD. We will also detail novel targeted therapeutics that have recently been or are currently in clinical trials for AD. A literature search was conducted by querying Scopus, Google Scholar, PubMed, and Clinicaltrials.gov up to January 2021 using combinations of the search terms 'IL-4' 'IL-13' 'IL-31' 'atopic dermatitis' 'immune pathway' 'biologics' 'novel therapeutics' 'JAK/STAT inhibitors.'Expert opinion: The complex pathophysiology of AD advocates for innovation. Novel minimally invasive sampling modalities such as tape stripping will allow for a broader characterization of the immunomechanisms behind AD pathophysiology. This will allow for the continued development of a personalized medicine approach to treat AD.
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Affiliation(s)
- Celina Dubin
- Department of Dermatology, And Laboratory of Inflammatory Skin Diseases, Icahn School of Medicine at Mount Sinai, New York, USA
| | - Ester Del Duca
- Department of Dermatology, And Laboratory of Inflammatory Skin Diseases, Icahn School of Medicine at Mount Sinai, New York, USA.,Department of Dermatology, Magna Graecia, Catanzaro, IT, Calabria
| | - Emma Guttman-Yassky
- Department of Dermatology, And Laboratory of Inflammatory Skin Diseases, Icahn School of Medicine at Mount Sinai, New York, USA.,Laboratory for Investigative Dermatology, The Rockefeller University, New York, New York USA
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17
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Omar SI, Hamza AM, Eldabah N, Habiba DA. IFN-α and TNF-α serum levels and their association with disease severity in Egyptian children and adults with alopecia areata. Int J Dermatol 2021; 60:1397-1404. [PMID: 34008204 DOI: 10.1111/ijd.15658] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 04/09/2021] [Accepted: 04/20/2021] [Indexed: 01/06/2023]
Abstract
BACKGROUND Alopecia areata (AA) is an autoimmune skin disease characterized by abnormal levels of several cytokines, such as interferon alpha (IFN-α) and tumor necrosis factor-alpha (TNF-α), which are T-helper type 1 cytokines that have important roles in the pathogenesis of AA. The aim of our study was to correlate circulating IFN-α and TNF-α levels with disease severity, activity, and clinical type in patients with AA and to evaluate the relationship between the two cytokines. METHODS We investigated serum IFN-α and TNF-α levels in 72 patients with AA (35 children and 35 adults) and 75 healthy control individuals (34 children and 41 adults) using the enzyme-linked immunosorbent assay (ELISA) technique. We evaluated AA severity using the Severity of Alopecia Tool (SALT) and determined the activity based on dermoscopic criteria of disease activity. RESULTS Serum IFN-α and TNF-α concentrations were significantly higher in the patients than in the controls. There was a significant positive correlation between serum IFN-α and TNF-α levels in all patients with alopecia areata, as well as between serum TNF-α levels and disease severity in all patients and in children. CONCLUSIONS Our results support the association between IFN-α and TNF-α levels and AA and suggest that TNF-α might be related to disease severity.
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Affiliation(s)
- Shaimaa I Omar
- Department of Dermatology, Venereology and Andrology, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Ashraf M Hamza
- Department of Dermatology, Venereology and Andrology, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Nermeen Eldabah
- Department of Clinical and Chemical Pathology, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Doaa A Habiba
- Department of Dermatology, Venereology and Andrology, Faculty of Medicine, Alexandria University, Alexandria, Egypt
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18
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Oska S, Bedford LM, Potts GA. Alopecia totalis following hand-foot-and-mouth disease. Pediatr Dermatol 2021; 38:640-642. [PMID: 33650159 DOI: 10.1111/pde.14550] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 01/17/2021] [Accepted: 01/30/2021] [Indexed: 11/29/2022]
Abstract
We present a case of a 13-month-old male patient with alopecia totalis that began two months after an episode of hand-foot-and-mouth disease. It is hypothesized that the viral infection triggered an autoimmune response, which lead to production of lymphocytes targeting an antigen present in the hair bulb. Future research is necessary to determine whether and how the pathophysiology of alopecia totalis may be triggered by viral infection.
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Affiliation(s)
- Sandra Oska
- Oakland University William Beaumont School of Medicine, Rochester, MI, USA
| | - Lisa M Bedford
- Department of Dermatology, Wayne State University, Dearborn, MI, USA
| | - Geoffrey A Potts
- Department of Dermatology, Wayne State University, Dearborn, MI, USA
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19
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Immunological Properties of Atopic Dermatitis-Associated Alopecia Areata. Int J Mol Sci 2021; 22:ijms22052618. [PMID: 33807704 PMCID: PMC7961331 DOI: 10.3390/ijms22052618] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 02/24/2021] [Accepted: 03/03/2021] [Indexed: 12/13/2022] Open
Abstract
Alopecia areata (AA) is regarded as a tissue-specific and cell-mediated autoimmune disorder. Regarding the cytokine balance, AA has been considered a type 1 inflammatory disease. On the other hand, AA often complicates atopic dermatitis (AD) and AD is regarded as type 2 inflammatory disease. However, the immunological aspects of AA in relation to AD are still poorly understood. Therefore, we aim to clarify the immunological properties of AD-associated AA. In this study, we performed comparative analysis of the expression of intracytoplasmic cytokines (IFN-γ, IL-4, and IL-13), chemokine receptors (CXCR3 and CCR4) in peripheral blood which were taken from healthy controls, non-atopic AA patients, AA patients with extrinsic AD, and AA patients with intrinsic AD by flowcytometric analysis. We also compared the scalp skin samples taken from AA patients with extrinsic AD before and after treatment with dupilumab. In non-atopic AA patients, the ratios of CD4+IFN-γ+ cells to CD4+IL-4+ cells and CD4+IFN-γ+ cells to CD4+IL-13+ cells were higher than those in AA patients with extrinsic AD. Meanwhile, the ratio of CD8+IFN-γ+ cells to CD8+IL-13+ cells was significantly higher in the non-atopic AA than in the healthy controls. In AA patients with extrinsic AD, the skin AA lesion showed dense infiltration of not only CXCR3+ cells but also CCR4+ cells around hair bulb before dupilumab treatment. However, after the treatment, the number of CXCR3+ cells had no remarkable change while the number of CCR4+ cells significantly decreased. These results indicate that the immunological condition of AA may be different between atopic and non-atopic patients and between extrinsic and intrinsic AD patients. Our study provides an important notion that type 2 immunity may participate in the development of AA in extrinsic AD patients. It may be considered that the immunological state of non-atopic AA is different from that of atopic AA.
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20
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Afford R, Leung AKC, Lam JM. Pediatric Alopecia Areata. Curr Pediatr Rev 2021; 17:45-54. [PMID: 32351186 DOI: 10.2174/1573396316666200430084825] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 01/28/2020] [Accepted: 02/24/2020] [Indexed: 12/12/2022]
Abstract
BACKGROUND Alopecia areata (AA) is a non-scarring hair loss disorder of autoimmune etiology. OBJECTIVE To familiarize physicians with the clinical presentation, diagnosis, evaluation, and management of pediatric alopecia areata. METHODS The search term "Alopecia areata" was entered into a Pubmed search. A narrow scope was applied to the categories of "epidemiology", "clinical diagnosis", "investigations", "comorbidities", and "treatment". Meta-analyses, randomized controlled trials, clinical trials, observational studies, and reviews were included. Only papers published in the English language were included. A descriptive, narrative synthesis was provided of the retrieved articles. RESULTS AA is an autoimmune disease of unknown etiology. It is the third most common dermatologic presentation in children with a lifetime risk of 1-2%. Diagnosing AA can be made on the basis of the history and clinical findings. Patients will often present with patchy, non-scarring hair loss, generally affecting the scalp. History may reveal a personal or family medical history of autoimmune or atopic disease or a recent stressful event. Tricoscopic examination will classically show "exclamation point hairs" and "yellow dots". Nonspecific nail changes may be present. Other clinical variants include alopecia totalis, alopecia universalis, ophiasis, sisaipho, and Canitis subita. There are multiple treatment options for AA, including conservative treatment, and topical, oral, and injectable medications. CONCLUSION AA is an autoimmune disease with a heterogeneous presentation and unpredictable clinical course. Although there is no cure for AA, there are many current treatment options available to help manage this disfiguring disease.
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Affiliation(s)
- Rebecca Afford
- Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Alexander K C Leung
- Department of Pediatrics, The University of Calgary, Alberta Children's Hospital, Calgary, Alberta, Canada
| | - Joseph M Lam
- Department of Pediatrics and Department of Dermatology and Skin Sciences, University of British Columbia, Vancouver, British Columbia, Canada
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21
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Abstract
Alopecia areata (AA) is an autoimmune condition that affects up to 2% of the general population. Currently available treatment options for AA are of limited efficacy and can be associated with adverse effects. The advancement in understanding of the genetic and molecular mechanisms of AA has led to the development of novel treatment options, with the Janus kinase (JAK) inhibitor class of drugs at the forefront of ongoing clinical trials. Platelet-rich plasma, fecal transplants, and cytokine-targeted therapy with ustekinumab and dupilumab have also been shown to regrow hair in patients with AA in individual case reports or small studies. Several other novel therapies have preliminary data or are being tested in clinical trials.
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22
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Sato Y, Kinoshita-Ise M, Fukuyama M, Yamazaki Y, Ohyama M. Development of a scoring system to predict outcomes of i.v. corticosteroid pulse therapy in rapidly progressive alopecia areata adopting digital image analysis of hair recovery. J Dermatol 2020; 48:301-309. [PMID: 33245174 DOI: 10.1111/1346-8138.15675] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 09/11/2020] [Accepted: 10/06/2020] [Indexed: 12/11/2022]
Abstract
Alopecia areata (AA) is a common autoimmune disease manifesting varying degrees of hair loss. Rapidly progressive AA (RP-AA) is a severe subtype of AA and often resistant to skin-directed treatments. i.v. corticosteroid pulse therapy has been applied for RP-AA; however, the treatment outcome can only become evaluable several months after the intervention, discomposing the patients. In this study, we attempted to develop a scoring system to predict treatment outcomes based on statistical correlations between newly identified predictors and the recovery rates calculated by digital image analysis. Thirty RP-AA patients (15 men and 15 women) who underwent pulse therapy and demonstrated total hair loss during the clinical course were included. The percentages of hair regrowth (%HR) at 6 months after the treatment were quantitatively calculated by image analysis software. The correlation between %HR and clinicopathological and immunological variables were statistically assessed. The analysis identified four confirmatory contributors including female sex (P = 0.015), absence of previous AA history (P = 0.02), lower peripheral blood eosinophil count (P = 0.02) and mild to moderate cell infiltration around the hair bulb (P = 0.034), together with a potential contributor, namely absence of atopic dermatitis in their medical history (P = 0.08). The scoring system was developed by double counting confirmatory variables and single counting a potential variable. Importantly, the scores obtained by this system demonstrated significant correlation with %HR (r = 0.61, P < 0.001). The usefulness of this scoring system was further validated by assessing additional 20 cases of RP-AA. When combined with a recently published algorithm for early detection of self-healing subset, the current scoring system may help strategize the therapeutic approach for RP-AA.
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Affiliation(s)
- Yohei Sato
- Department of Dermatology, Kyorin University Faculty of Medicine, Tokyo, Japan
| | | | - Masahiro Fukuyama
- Department of Dermatology, Kyorin University Faculty of Medicine, Tokyo, Japan
| | - Yoshimi Yamazaki
- Department of Dermatology, Kyorin University Faculty of Medicine, Tokyo, Japan
| | - Manabu Ohyama
- Department of Dermatology, Kyorin University Faculty of Medicine, Tokyo, Japan
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Uchida Y, Gherardini J, Schulte-Mecklenbeck A, Alam M, Chéret J, Rossi A, Kanekura T, Gross CC, Arakawa A, Gilhar A, Bertolini M, Paus R. Pro-inflammatory Vδ1 +T-cells infiltrates are present in and around the hair bulbs of non-lesional and lesional alopecia areata hair follicles. J Dermatol Sci 2020; 100:129-138. [PMID: 33039243 DOI: 10.1016/j.jdermsci.2020.09.001] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 09/10/2020] [Accepted: 09/12/2020] [Indexed: 12/15/2022]
Abstract
BACKGROUND It is widely accepted that NKG2D+cells are critically involved in alopecia areata (AA) pathogenesis. However, besides being expressed in CD8+T-cells and NK cells, NKG2D is also found in human γδT-cells. AA lesional hair follicles (HFs) overexpress NKG2D and γδTCR activating ligands, e.g. MICA and CD1d, and chemoattractants for γδT-cells, such as CXCL10. OBJECTIVE To investigate whether abnormal activities of γδT-cells may be involved in AA pathogenesis. METHODS We analyzed the number and activation status of γδT-cells in human healthy, lesional and non-lesional AA scalp biopsies by FACS and/or quantitative (immuno-)histomorphometry. RESULTS In healthy human scalp skin, the few skin-resident γδT-cells were found to be mostly Vδ1+, non-activated (CD69-NKG2Ddim) and positive for CXCL10, and CXCL12 receptors. These Vδ1+T-cells predominantly localized in/around the HF infundibulum. In striking contrast, the number of Vδ1+T-cells was significantly higher around and even inside the proximal (suprabulbar and bulbar) epithelium of lesional AA HFs. These cells also showed a pro-inflammatory phenotype, i.e. higher NKG2D, and IFN-γ and lower CD200R expression. Importantly, more pro-inflammatory Vδ1+T-cells were seen also around non-lesional AA HFs. Lesional AA HFs also showed significantly higher expression of CXCL12. CONCLUSION Our pilot study introduces skin-resident γδT-cells as a previously overlooked, but potentially important, mostly (auto-)antigen-independent, new innate immunity protagonist in AA pathobiology. The HF infiltration of these activated, IFN-γ-releasing cells already around non-lesional AA HFs suggest that Vδ1+T-cells are involved in the early stages of human AA pathobiology, and may thus deserve therapeutic targeting for optimal AA management.
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Affiliation(s)
- Youhei Uchida
- Department of Dermatology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Jennifer Gherardini
- Monasterium Laboratory, Skin and Hair Research Solutions GmbH, Münster, Germany; Dr. Phillip Frost Dept. of Dermatology & Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Andreas Schulte-Mecklenbeck
- Department of Neurology & Institute of Translational Neurology, University Hospital Münster, Münster, Germany
| | - Majid Alam
- Department of Dermatology & Venereology, Hamad Medical Corporation & Translational Research Institute, Academic Health System, Doha, Qatar
| | - Jérémy Chéret
- Dr. Phillip Frost Dept. of Dermatology & Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Alfredo Rossi
- Department of Clinical Internal, Anesthesiological and Cardiovascular Sciences, University "La Sapienza'', Rome, Italy
| | - Takuro Kanekura
- Department of Dermatology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Catharina C Gross
- Department of Neurology & Institute of Translational Neurology, University Hospital Münster, Münster, Germany
| | - Akiko Arakawa
- Department of Dermatology, University of Munich (LMU), Munich, Germany
| | - Amos Gilhar
- Skin Research Laboratory, Technion-Israel Institute of Technology, Haifa, Israel
| | - Marta Bertolini
- Monasterium Laboratory, Skin and Hair Research Solutions GmbH, Münster, Germany
| | - Ralf Paus
- Monasterium Laboratory, Skin and Hair Research Solutions GmbH, Münster, Germany; Dr. Phillip Frost Dept. of Dermatology & Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL, USA; Centre for Dermatology Research, University of Manchester, MAHSC, and Manchester NIHR Biomedical Research Centre, Manchester, UK.
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Hile GA, Gudjonsson JE, Kahlenberg JM. The influence of interferon on healthy and diseased skin. Cytokine 2020; 132:154605. [PMID: 30527631 PMCID: PMC6551332 DOI: 10.1016/j.cyto.2018.11.022] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Revised: 11/09/2018] [Accepted: 11/19/2018] [Indexed: 01/09/2023]
Abstract
Type I interferons (IFNs) are an immunomodulatory class of cytokines that serve to protect against viral and bacterial infection. In addition, mounting evidence suggests IFNs, particularly type I but also IFNγ, are important to the pathogenesis of autoimmune and inflammatory skin diseases, such as cutaneous lupus erythematosus (CLE). Understanding the role of IFNs is relevant to anti-viral responses in the skin, skin biology, and therapeutics for these IFN-related conditions. Type I IFNs (α and β) are produced by recruited inflammatory cells and by the epidermis itself (IFNκ) and have important roles in autoimmune and inflammatory skin disease. Here, we review the current literature utilizing a PubMed database search using terms [interferon/IFN/type I IFN AND lupus/ cutaneous lupus/CLE/dermatomyositis/Sjogrens/psoriasis/lichen planus/morphea/alopecia areata/vitiligo] with a focus on the role of IFNs in basic keratinocyte biology and their implications in the cutaneous autoimmune and inflammatory diseases: cutaneous lupus erythematosus, dermatomyositis, Sjogren's syndrome, psoriasis, lichen planus, alopecia areata and vitiligo. We provide information about genes and proteins induced by IFNs and how downstream mechanisms relate to clinical disease.
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Affiliation(s)
- Grace A Hile
- Department of Dermatology, University of Michigan, Ann Arbor, MI 48109, USA; Division of Rheumatology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48109, USA.
| | - Johann E Gudjonsson
- Department of Dermatology, University of Michigan, Ann Arbor, MI 48109, USA.
| | - J Michelle Kahlenberg
- Division of Rheumatology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48109, USA.
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Kim JE, Lee YJ, Park HR, Lee DG, Jeong KH, Kang H. The Effect of JAK Inhibitor on the Survival, Anagen Re-Entry, and Hair Follicle Immune Privilege Restoration in Human Dermal Papilla Cells. Int J Mol Sci 2020; 21:ijms21145137. [PMID: 32698510 PMCID: PMC7404120 DOI: 10.3390/ijms21145137] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 07/13/2020] [Accepted: 07/17/2020] [Indexed: 12/12/2022] Open
Abstract
Topical or systemic administration of JAK inhibitors has been shown to be a new treatment modality for severe alopecia areata (AA). Some patients show a good response to JAK inhibitors, but frequently relapse after cessation of the treatment. There have been no guidelines about the indications and use of JAK inhibitors in treating AA. The basic pathomechanism of AA and the relevant role of JAK inhibitors should support how to efficiently use JAK inhibitors. We sought to investigate the effect of JAK1/2 inhibitor on an in vitro model of AA and to examine the possible mechanisms. We used interferon gamma-pretreated human dermal papilla cells (hDPCs) as an in vitro model of AA. Ruxolitinib was administered to the hDPCs, and cell viability was assessed. The change of expression of the Wnt/β-catenin pathway, molecules related to the JAK-STAT pathway, and growth factors in ruxolitinib-treated hDPCs was also examined by reverse transcription PCR and Western blot assay. We examined immune-privilege-related molecules by immunohistochemistry in hair-follicle culture models. Ruxolitinib did not affect the cell viability of the hDPCs. Ruxolitinib activated several molecules in the Wnt/β-catenin signaling pathway, including Lef1 and β-catenin, and suppressed the transcription of DKK1 in hDPCs, but not its translation. Ruxolitinib reverted IFN-γ-induced expression of caspase-1, IL-1β, IL-15, and IL-18, and stimulated several growth factors, such as FGF7. Ruxolitinib suppressed the phosphorylation of JAK1, JAK2 and JAK3, and STAT1 and 3 compared to IFN-γ pretreated hDPCs. Ruxolitinib pretreatment showed a protective effect on IFN-γ-induced expression of MHC-class II molecules in cultured hair follicles. In conclusion, ruxolitinib modulated and reverted the interferon-induced inflammatory changes by blocking the JAK-STAT pathway in hDPCs under an AA-like environment. Ruxolitinib directly stimulated anagen-re-entry signals in hDPCs by affecting the Wnt/β-catenin pathway and promoting growth factors in hDPCs. Ruxolitinib treatment prevented IFN-γ-induced collapse of hair-follicle immune privilege.
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Affiliation(s)
- Jung Eun Kim
- Correspondence: (J.E.K.); (H.K.); Tel.: +82-02-2030-2846 (J.E.K.); +82-02-2030-2845 (H.K.)
| | | | | | | | | | - Hoon Kang
- Correspondence: (J.E.K.); (H.K.); Tel.: +82-02-2030-2846 (J.E.K.); +82-02-2030-2845 (H.K.)
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26
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Ito T, Suzuki T, Sakabe JI, Funakoshi A, Fujiyama T, Tokura Y. Plasmacytoid dendritic cells as a possible key player to initiate alopecia areata in the C3H/HeJ mouse. Allergol Int 2020; 69:121-131. [PMID: 31431342 DOI: 10.1016/j.alit.2019.07.009] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 06/19/2019] [Accepted: 07/05/2019] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Alopecia areata (AA) is a tissue-specific autoimmune disease, and interferon (IFN)-γ has been regarded as the key cytokine in the pathogenesis of AA. The clinical observation that AA can occur after viral infection or IFN-α administration implies that IFN-α-producing plasmacytoid dendritic cells (pDCs) may be involved in the AA pathogenesis. METHODS We generated AA in C3H/HeJ mice by intradermal injection of T cells derived from lymph nodes of AA-bearing syngeneic mice and stimulated IL-2, IL-7, and IL-15. Distribution of IFN-γ producing pDCs were immunohistochemically analyzed. Realtime PCR were also demonstrated to detect the expression of IFN-γ mRNA. Hair follicles were cultured with IFN-α in order to calculate the hair elongation. Imiquimod was employed to induce catagen stage. PDCs were injected into C3H/HeJ mice to initiate AA. RESULTS In this mouse, IFN-α-producing pDCs densely infiltrated around HFs in not only AA lesional but also vicinity of AA lesion. Importantly, intradermal injection of pDCs induced AA lesions. Finally, IFN-α inhibited hair elongation of murine vibrissae and upregulated MHC class I and CXCL10 levels in vitro. CONCLUSIONS These findings suggest that IFN-α-producing pDCs initiate AA by inducing apoptosis and increasing Th1/Tc1 chemokine production such as CXCL10, that accumulates Th1/Tc1 cells and result in autoimmune reactions against hair follicles.
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Affiliation(s)
- Taisuke Ito
- Department of Dermatology, Hamamatsu University School of Medicine, Hamamatsu, Japan.
| | - Takahiro Suzuki
- Department Dermatology & Cutaneous Surgery, University of Miami Miller School of Medicine, Florida, USA
| | | | - Atsuko Funakoshi
- Department of Dermatology, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Toshiharu Fujiyama
- Department of Dermatology, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Yoshiki Tokura
- Department of Dermatology, Hamamatsu University School of Medicine, Hamamatsu, Japan
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27
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Zhang X, McElwee KJ. Allergy promotes alopecia areata in a subset of patients. Exp Dermatol 2019; 29:239-242. [PMID: 31479542 DOI: 10.1111/exd.14027] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Revised: 08/02/2019] [Accepted: 08/15/2019] [Indexed: 11/28/2022]
Abstract
In this commentary, we focus on allergy as a facilitating factor in the pathogenesis of alopecia areata (AA). From previous studies on AA, it is well known that subsets of patients can have one or more of; seasonal relapse, comorbid atopic rhinitis, asthma and dermatitis, lesion infiltrating eosinophils and plasma cells, high levels of total IgE, specific IgE for house dust mites (HDMs), and/or disrupted skin barrier function by the evaluation of filaggrin. Allergy and AA share a similar genetic background; both contributing to an immune reaction imbalance. Furthermore, adjunctive treatment with antihistamines, or desensitization for HDM, can reduce the severity of alopecia in atopic AA patients. Therefore, allergies may contribute to the onset and relapse of AA. Identification of an allergic or atopic immune component in AA patient subsets may indicate adjunctive treatment intervention measures against allergies should be taken which may improve the success of conventional AA treatment.
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Affiliation(s)
- Xingqi Zhang
- Department of Dermatology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Kevin J McElwee
- Centre for Skin Sciences, University of Bradford, Bradford, UK.,Department of Dermatology and Skin Science, University of British Columbia, Vancouver, BC, Canada
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28
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Vega BA, Belinka BA, Kachlany SC. Aggregatibacter actinomycetemcomitans Leukotoxin (LtxA; Leukothera ®): Mechanisms of Action and Therapeutic Applications. Toxins (Basel) 2019; 11:toxins11090489. [PMID: 31454891 PMCID: PMC6784247 DOI: 10.3390/toxins11090489] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 08/21/2019] [Accepted: 08/22/2019] [Indexed: 12/18/2022] Open
Abstract
Aggregatibacter actinomycetemcomitans is an oral pathogen that produces the RTX toxin, leukotoxin (LtxA; Leukothera®). A. actinomycetemcomitans is strongly associated with the development of localized aggressive periodontitis. LtxA acts as a virulence factor for A. actinomycetemcomitans to subvert the host immune response by binding to the β2 integrin lymphocyte function-associated antigen-1 (LFA-1; CD11a/CD18) on white blood cells (WBCs), causing cell death. In this paper, we reviewed the state of knowledge on LtxA interaction with WBCs and the subsequent mechanisms of induced cell death. Finally, we touched on the potential therapeutic applications of LtxA (trade name Leukothera®) toxin therapy for the treatment of hematological malignancies and immune-mediated diseases.
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Affiliation(s)
- Brian A Vega
- Department of Oral Biology, Rutgers School of Dental Medicine, Newark, NJ 07103, USA
- Actinobac Biomed, Inc., Princeton, NJ 08540, USA
| | | | - Scott C Kachlany
- Department of Oral Biology, Rutgers School of Dental Medicine, Newark, NJ 07103, USA.
- Actinobac Biomed, Inc., Princeton, NJ 08540, USA.
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29
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Serum concentrations of selected proinflammatory cytokines in children with alopecia areata. Postepy Dermatol Alergol 2019; 36:63-69. [PMID: 30858781 PMCID: PMC6409873 DOI: 10.5114/ada.2019.82826] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Accepted: 11/26/2017] [Indexed: 11/21/2022] Open
Abstract
Introduction Alopecia areata (AA) is considered an autoimmune disorder characterized by patchy loss of hair from the scalp and other body parts. Many patients develop the disease in childhood. Aim To answer the question whether abnormal production of some proinflammatory cytokines (IL-2, IL-6, IL-15, IL-17A and IFNγ) in children with AA may facilitate the development or progression of the disease. Material and methods The study group consisted of 42 children with AA, the control group – 37 healthy children. Peripheral venous blood samples were collected from patients with AA and healthy controls and the concentrations of serum cytokines, namely IL-2, IL-6, IL-15, IL-17A, IFN-γ were determined quantitatively by ELISA method. Results The serum IL-6, IL-15, IL-17A and IFNγ levels were significantly increased in patients with AA compared with control subjects (p < 0.05). The serum IL-15 level was found to be increased when the total duration of AA was increased (q = 0.30; p = 0.05). The serum cytokine level of IL-17A was found to be decreased when duration of the current episode was longer than 2 years (p < 0.05), but the correlation between IL-17A serum level and duration of the current episode was not confirmed in the Spearman test (q = –0.06; p = 0.68). The serum IL-17A level was found to be significantly decreased when the thyroiditis was present (q = –2.378; p < 0.05). Conclusions The increased levels of serum IL-6, IL-15, IL-17A and IFNγ in children suggest imbalance in the serum proinflammatory cytokines production in AA.
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30
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Incel-Uysal P, Akdogan N, Alli N, Oktem A, Candar T, Topcuoglu C, Turhan T. Assessment of Metabolic Profile and Ischemia-modified Albumin Level in Patients with Alopecia Areata: A Case-Control Study. Indian J Dermatol 2019; 64:12-18. [PMID: 30745629 PMCID: PMC6340238 DOI: 10.4103/ijd.ijd_238_18] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Background: Alopecia areata (AA) is an autoimmune-mediated hair follicle disorder. In the literature, there is no study evaluating metabolic syndrome and levels of ischemia-modified albumin (IMA) which is proposed as an oxidative stress biomarker in patients with AA. Aims: The aim was to investigate the presence of metabolic syndrome and the levels of IMA, small dense low-density lipoprotein (sd-LDL), and visfatin levels in AA patients. Settings and Design: A hospital-based cross-sectional study was undertaken among AA patients and controls. Subjects and Methods: Thirty-five patients with AA and 35 sex-, age-, and body mass index-matched healthy controls were enrolled. Clinical and laboratory parameters of metabolic syndrome were examined in all participants. Furthermore, IMA, sd-LDL, and visfatin levels were assessed and analyzed with regard to disease pattern, severity and extent, severity of alopecia tool score, duration, and recurrence. Results: The median IMA and adjusted IMA levels were significantly increased compared with controls (P<0.05 and P=0.002, respectively). Patients with pull test positivity displayed higher levels of adjusted IMA levels (P<0.05). In AA group, there was a positive correlation between adjusted IMA and waist circumference (r=0.443, P=0.008), adjusted IMA and triglyceride levels (r=0.535, P=0.001), and adjusted IMA and sd-LDL levels (r=0.46, P<0.05). We observed no statistically significant difference in fasting blood glucose and lipid profile, sd-LDL, and visfatin levels of the patients and healthy controls. Conclusions: AA patients and controls have similar metabolic profile. Raised levels of adjusted IMA levels may be associated with antioxidant/oxidant imbalance and with risk of cardiovascular disease.
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Affiliation(s)
- Pinar Incel-Uysal
- Department of Dermatology, Ankara Numune Training and Research Hospital, Ankara, Turkey
| | - Neslihan Akdogan
- Department of Dermatology, Ankara Numune Training and Research Hospital, Ankara, Turkey
| | - Nuran Alli
- Department of Dermatology, Ankara Numune Training and Research Hospital, Ankara, Turkey
| | - Ayse Oktem
- Department of Dermatology, Ankara Numune Training and Research Hospital, Ankara, Turkey
| | - Tuba Candar
- Department of Medical Biochemistry, Ufuk University Faculty of Medicine, Ankara, Turkey
| | - Canan Topcuoglu
- Department of Medical Biochemistry, Ankara Numune Training and Research Hospital, Ankara, Turkey
| | - Turan Turhan
- Department of Medical Biochemistry, Ankara Numune Training and Research Hospital, Ankara, Turkey
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31
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Migacz-Gruszka K, Branicki W, Obtulowicz A, Pirowska M, Gruszka K, Wojas-Pelc A. What's New in the Pathophysiology of Alopecia Areata? The Possible Contribution of Skin and Gut Microbiome in the Pathogenesis of Alopecia - Big Opportunities, Big Challenges, and Novel Perspectives. Int J Trichology 2019; 11:185-188. [PMID: 31728100 PMCID: PMC6830027 DOI: 10.4103/ijt.ijt_76_19] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
The term “microbiome” defines the collective genome of all commensal, symbiotic, and pathogenic microbes living in the human body. The composition of microbiota in the gut and skin is influenced by many factors such as the stage of life, nutrition, lifestyle, and gender. In the past few years, several scientific papers have demonstrated an implication of microbiota in many immune-mediated diseases, for example, diabetes, ulcerative colitis, and multiple sclerosis. The alterations in the proportion of gut microbiota have emerged as potential immunomodulators with the capacity to induce physiologic as well as pathologic immune responses against the human body, causing inflammation and destruction of tissues or organs. The microbiota influences the differentiation of adaptive immune cells not only in the gut but also in the skin. Alopecia areata (AA) is a dermatologic disorder which causes hair loss in most cases resistant to treatment. There are some clinical and experimental evidences indicating that AA is the demonstration of autoimmune attack against hair follicles. The factors that may implicate such an autoimmunity in AA still remain unknown. Despite more and more evidences demonstrate that human microbiome plays a key role in human health and diseases, to the best of our knowledge, no study has been conducted to analyze an implication of microbiome in the pathogenesis of AA. Undoubtedly, there is a need to performing a study which might explain the involvement of gut and skin microbiota in the unclear pathogenesis of AA and lead to alternative treatment options for numerous patients suffering from current treatment limitations.
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Affiliation(s)
| | - Wojciech Branicki
- Malopolska Centre of Biotechnology, Jagiellonian University, Cracow, Poland
| | | | - Magdalena Pirowska
- Department of Dermatology, Jagiellonian University Medical College, Cracow, Poland
| | - Krystian Gruszka
- Department of Cardiology, Interventional Electrocardiology and Arterial Hypertension, Jagiellonian University Medical College, Cracow, Poland
| | - Anna Wojas-Pelc
- Department of Dermatology, Jagiellonian University Medical College, Cracow, Poland
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Affiliation(s)
- M. Ohyama
- Department of Dermatology; Kyorin University School of Medicine; 6-20-2, Shinkawa, Mitaka-shi Tokyo, 181-8611 Japan
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Gong Y, Zhao Y, Zhang X, Qi S, Li S, Ye Y, Yang J, Caulloo S, McElwee KJ, Zhang X. Serum level of
IL
‐4 predicts response to topical immunotherapy with diphenylcyclopropenone in alopecia areata. Exp Dermatol 2018; 29:231-238. [DOI: 10.1111/exd.13758] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Revised: 06/08/2018] [Accepted: 07/18/2018] [Indexed: 12/18/2022]
Affiliation(s)
- Yugang Gong
- Department of DermatologyThe First Affiliated HospitalSun Yat‐sen University Guangzhou China
- Institute of Dermatology and VenereologySichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital Chengdu China
| | - Ying Zhao
- Department of DermatologyThe First Affiliated HospitalSun Yat‐sen University Guangzhou China
| | - Xiaoting Zhang
- Department of DermatologyThe First Affiliated HospitalSun Yat‐sen University Guangzhou China
| | - Shiling Qi
- Department of DermatologyThe First Affiliated HospitalSun Yat‐sen University Guangzhou China
| | - Shuifeng Li
- Department of DermatologyThe First Affiliated HospitalSun Yat‐sen University Guangzhou China
| | - Yanting Ye
- Department of DermatologyThe First Affiliated HospitalSun Yat‐sen University Guangzhou China
| | - Jian Yang
- Department of DermatologyThe First Affiliated HospitalSun Yat‐sen University Guangzhou China
| | - Sillani Caulloo
- Department of DermatologyThe First Affiliated HospitalSun Yat‐sen University Guangzhou China
| | | | - Xingqi Zhang
- Department of DermatologyThe First Affiliated HospitalSun Yat‐sen University Guangzhou China
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34
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Borde A, Åstrand A. Alopecia areata and the gut-the link opens up for novel therapeutic interventions. Expert Opin Ther Targets 2018; 22:503-511. [PMID: 29808708 DOI: 10.1080/14728222.2018.1481504] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
INTRODUCTION This review aims to raise the potential of the modern society's impact on gut integrity often leading to increased intestinal permeability, as a cause or driver of Alopecia Areata (AA) in genetically susceptible people. With the increasing rate of T cell-driven autoimmunity, we hypothesize that there is a common root cause of these diseases that originates from chronic inflammation, and that the gut is the most commonly exposed area with our modern lifestyle. Areas covered: We will discuss the complexity in the induction of AA and its potential link to increased intestinal permeability. Our main focus will be on the gut microbiome and mechanisms involved in the interplay with the immune system that may lead to local and/or peripheral inflammation and finally, tissue destruction. Expert opinion: We have seen a link between AA and a dysfunctional gastrointestinal system which raised the hypothesis that an underlying intestinal inflammation drives the priming and dysregulation of immune cells that lead to hair follicle destruction. While it is still important to resolve local inflammation and restore the IP around the hair follicles, we believe that the root cause needs to be eradicated by long-term interventions to extinguish the fire driving the disease.
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Affiliation(s)
- Annika Borde
- a Respiratory, Inflammation and Autoimmunity IMED Biotech Unit , AstraZeneca , Gothenburg , Sweden
| | - Annika Åstrand
- a Respiratory, Inflammation and Autoimmunity IMED Biotech Unit , AstraZeneca , Gothenburg , Sweden
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35
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Jalili RB, Kilani RT, Li Y, Khosravi-Maharlooie M, Nabai L, Wang EHC, McElwee KJ, Ghahary A. Fibroblast cell-based therapy prevents induction of alopecia areata in an experimental model. Cell Transplant 2018; 27:994-1004. [PMID: 29871523 PMCID: PMC6050905 DOI: 10.1177/0963689718773311] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Alopecia areata (AA) is an autoimmune hair loss disease with infiltration of
proinflammatory cells into hair follicles. Current therapeutic regimens are unsatisfactory
mainly because of the potential for side effects and/or limited efficacy. Here we report
that cultured, transduced fibroblasts, which express the immunomodulatory molecule
indoleamine 2,3-dioxygenase (IDO), can be applied to prevent hair loss in an experimental
AA model. A single intraperitoneal (IP) injection of IDO-expressing primary dermal
fibroblasts was given to C3H/HeJ mice at the time of AA induction. While 60–70% of mice
that received either control fibroblasts or vehicle injections developed extensive AA,
none of the IDO-expressing fibroblast-treated mice showed new hair loss up to 20 weeks
post injection. IDO cell therapy significantly reduced infiltration of CD4+ and
CD8+ T cells into hair follicles and resulted in decreased expression of
TNF-α, IFN-γ and IL-17 in the skin. Skin draining lymph nodes of IDO fibroblast-treated
mice were significantly smaller, with more CD4+ CD25+
FoxP3+ regulatory T cells and fewer Th17 cells than those of control
fibroblast and vehicle-injected mice. These findings indicate that IP injected
IDO-expressing dermal fibroblasts can control inflammation and thereby prevent AA hair
loss.
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Affiliation(s)
- Reza B Jalili
- 1 Department of Surgery, ICORD (international collaboration on regenerative discoveries), University of British Columbia, Canada
| | - Ruhangiz T Kilani
- 1 Department of Surgery, ICORD (international collaboration on regenerative discoveries), University of British Columbia, Canada
| | - Yunyuan Li
- 1 Department of Surgery, ICORD (international collaboration on regenerative discoveries), University of British Columbia, Canada
| | - Mohsen Khosravi-Maharlooie
- 1 Department of Surgery, ICORD (international collaboration on regenerative discoveries), University of British Columbia, Canada
| | - Layla Nabai
- 1 Department of Surgery, ICORD (international collaboration on regenerative discoveries), University of British Columbia, Canada
| | - Eddy Hsi Chun Wang
- 2 Department of Dermatology and Skin Science, University of British Columbia, Canada
| | - Kevin J McElwee
- 2 Department of Dermatology and Skin Science, University of British Columbia, Canada
| | - Aziz Ghahary
- 1 Department of Surgery, ICORD (international collaboration on regenerative discoveries), University of British Columbia, Canada
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Harries MJ, Jimenez F, Izeta A, Hardman J, Panicker SP, Poblet E, Paus R. Lichen Planopilaris and Frontal Fibrosing Alopecia as Model Epithelial Stem Cell Diseases. Trends Mol Med 2018; 24:435-448. [DOI: 10.1016/j.molmed.2018.03.007] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Revised: 03/14/2018] [Accepted: 03/14/2018] [Indexed: 01/06/2023]
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Gao Z, Jin YQ, Wu W. SOCS3 treatment prevents the development of alopecia areata by inhibiting CD8+ T cell-mediated autoimmune destruction. Oncotarget 2018; 8:33432-33443. [PMID: 28418931 PMCID: PMC5464880 DOI: 10.18632/oncotarget.16504] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2016] [Accepted: 02/23/2017] [Indexed: 01/22/2023] Open
Abstract
Alopecia areata is one of the most common autoimmune diseases resulting from T cell-mediated damage of hair follicles. CD8+ T cells infiltrate hair follicles and are responsible for destruction of hair follicles. However the underlying mechanisms for hair loss remain still obscure. In the present study, we identified that suppressor of cytokine signaling-3 (SOCS3), a classical inhibitor of cytokine signaling, significantly inhibits CD8+T cell maturation, interferon-γ (IFN-γ) production and alopecia areata. SOCS3 is downregulated in the skin of alopecia areata patients and murine autoimmune alopecia model. Furthermore, SOCS3 treatment prevents the development of alopecia areata in the graft model. SOCS3 decreases the CD44high CD62Llow effector memory CD8+ T cells, resulting in the decrease of IFN-γ production. The expression of Fas and major histocompatibility complex-1 (MHC I) is upregulated in skin from C3H/HeJ alopecia areata mice, and this increase is suppressed by SOCS3. The SOCS3 level is negative correlation with the Fas and MHC I level in patients with alopecia areata. These results suggest that SOCS3 treatment may be an effective strategy to treat autoimmune alopecia as well as to more generally prevent cytokine-dependent tissue destruction in inflammatory diseases.
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Affiliation(s)
- Zhen Gao
- Department of Plastic and Reconstructive Surgery, Shanghai 9th People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yu-Qing Jin
- Department of Plastic Surgery, Shanghai International Medical Center, Shanghai, China
| | - Wei Wu
- Department of Plastic and Reconstructive Surgery, Shanghai 9th People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Lee SH, Moon JH, Ban DH, Byun JW, Shin J, Choi GS. Can the Cytokine Analysis of the Scales on Alopecic Patch Predict the Response to Diphenylcyclopropenone Treatment in Alopecia Areata Patients? Ann Dermatol 2018; 30:150-157. [PMID: 29606811 PMCID: PMC5839885 DOI: 10.5021/ad.2018.30.2.150] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Revised: 08/28/2017] [Accepted: 09/05/2017] [Indexed: 11/27/2022] Open
Abstract
Background Contact immune modulating therapy with diphenylcyclopropenone (DPCP) is a topical treatment option for extensive alopecia areata (AA). Because the response to DPCP treatment varies according to the patient, and it takes several months to evaluate the clinical effectiveness of the treatment, it is necessary to identify the factors that can predict the prognosis of the disease while treating with topical DPCP. Objective In this study, cytokine levels in the scales of alopecic patches were investigated to identify whether they could predict response to DPCP during the early treatment period. Methods Scale samples were taken from the alopecic patches in eight AA patients at 1 week, 2 months, and 4 months after DPCP sensitization. The patients were divided into responders and non-responders according to the clinical responses of DPCP treatment. Interferon (IFN)-gamma, interleukin (IL)-2, IL-12 and IL-10 levels of the subjects were compared in several perspectives. Results Cytokine levels after 1 week of DPCP sensitization showed no statistically significant difference between two groups. After 4 months of treatment, IFN-gamma levels were significantly lower in responders than in non-responders. Conclusion The results of this study show IFN-gamma levels in the scales of alopecic patches might possibly reflect the clinical response in AA patients treated with DPCP. However, initial cytokine levels could not predict the treatment response.
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Affiliation(s)
- Si Hyub Lee
- Department of Dermatology, Inha University School of Medicine, Incheon, Korea
| | - Jong Hyuk Moon
- Department of Dermatology, Naval Pohang Hospital, Pohang, Korea
| | | | - Ji Won Byun
- Department of Dermatology, Inha University School of Medicine, Incheon, Korea
| | - Jeonghyun Shin
- Department of Dermatology, Inha University School of Medicine, Incheon, Korea
| | - Gwang Seong Choi
- Department of Dermatology, Inha University School of Medicine, Incheon, Korea
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Kasumagić-Halilovic E, Cavaljuga S, Ovcina-Kurtovic N, Zecevic L. Serum Levels of Interleukin-2 in Patients with Alopecia Areata: Relationship with Clinical Type and Duration of the Disease. Skin Appendage Disord 2018; 4:286-290. [PMID: 30410898 DOI: 10.1159/000486462] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2017] [Accepted: 12/21/2017] [Indexed: 11/19/2022] Open
Abstract
Background Alopecia areata (AA) is a disease characterized by focally, nonscarring hair loss on the scalp or any hair-bearing surface. The etiology is unknown, although the evidence suggests that AA is an immunologically mediated disease. In the pathogenesis of AA, Th1 immune response is predominant. A special cytokine profile is created by Th1 cells, which disturbs the natural balance of the cytokine networks and leads to inflammatory reaction and follicle damage. Objective The aim of our study was to evaluate serum concentrations of IL-2 in patients with AA and healthy subjects. We also examined a possible association between serum levels of IL-2, disease severity, and duration of AA. Methods Sixty patients with AA and 20 healthy controls were enrolled in the study. Serum concentrations of IL-2 were measured using enzyme-linked immunoassay techniques. Results Comparison of mean values of IL-2 has showed that serum concentrations of this cytokine are significantly higher in serum samples of AA patients in relation to the control group (22.2 ± 1.19 vs. 21.1 ± 2.68 pg/mL, respectively; p = 0.0142). No correlations were found between clinical type, duration of the disease, and serum levels of IL-2. Conclusion Our findings support the evidence that elevation of serum IL-2 is associated with AA. The exact role of serum IL-2 in AA should be additionally investigated in future studies.
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Affiliation(s)
- Emina Kasumagić-Halilovic
- Department of Dermatovenereology, Clinical Centre of Sarajevo University, Sarajevo, Bosnia-Herzegovina
| | - Semra Cavaljuga
- Institute of Epidemiology and Biostatistics, Faculty of Medicine, University of Sarajevo, Sarajevo, Bosnia-Herzegovina
| | - Nermina Ovcina-Kurtovic
- Department of Dermatovenereology, Clinical Centre of Sarajevo University, Sarajevo, Bosnia-Herzegovina
| | - Lamija Zecevic
- Institute of Clinical Immunology, Clinical Centre Sarajevo, Sarajevo, Bosnia-Herzegovina
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Celik SD, Ates O. Genetic analysis of interleukin 18 gene polymorphisms in alopecia areata. J Clin Lab Anal 2018; 32:e22386. [PMID: 29349811 DOI: 10.1002/jcla.22386] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Accepted: 12/22/2017] [Indexed: 01/02/2023] Open
Abstract
BACKGROUND Alopecia areata (AA), which appears as nonscarring hair shedding on any hair-bearing area, is a common organ-specific autoimmune condition. Cytokines have important roles in the development of AA. Interleukin (IL) 18 is a significant proinflammatory cytokine that was found higher in the patients with AA. We aimed to investigate whether the IL-18 (rs187238 and rs1946518) single nucleotide polymorphisms (SNPs) may be associated with AA and/or clinical outcome of patients with AA in Turkish population. METHODS Genotyping of rs187238 and rs1946518 SNPs were detected using sequence-specific primer-polymerase chain reaction (SSP-PCR) method in 200 patients with AA and 200 control subjects. RESULTS The genotype distribution of rs1946518 (-607C>A) SNP was found to be statistically significantly different among patients with AA and controls (P = .0008). Distribution of CC+CA genotypes and frequency of -607/allele C of rs1946518 SNP were higher in patients with AA (P = .001, P = .001, respectively). The genotype distribution of rs187238 (-137G>C) SNP was found to be statistically significantly different among patients with AA and control subjects (P = .0014). Distribution of GG genotype and frequency of -137/allele G of rs187238 SNP were higher in patients with AA (P = .0003, P = .001, respectively). CONCLUSION The rs1946518 (-607C>A) and rs187238 (-137G>C) polymorphisms were found associated with alopecia areata disease. The study suggests that IL-18 rs187238 and rs1946518 SNPs may be the cause of the AA susceptibility.
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Affiliation(s)
- Sumeyya Deniz Celik
- Department of Medical Biology, Medical Faculty, Gaziosmanpasa University, Tokat, Turkey
| | - Omer Ates
- Department of Medical Biology, Medical Faculty, Gaziosmanpasa University, Tokat, Turkey
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41
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Paus R, Bulfone-Paus S, Bertolini M. Hair Follicle Immune Privilege Revisited: The Key to Alopecia Areata Management. J Investig Dermatol Symp Proc 2018; 19:S12-S17. [PMID: 29273098 DOI: 10.1016/j.jisp.2017.10.014] [Citation(s) in RCA: 78] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The collapse of the immune privilege (IP) of the anagen hair bulb is now accepted as a key element in AA pathogenesis, and hair bulb IP restoration lies at the core of AA therapy. Here, we briefly review the essentials of hair bulb IP and recent progress in understanding its complexity. We discuss open questions and why the systematic dissection of hair bulb IP and its pharmacological manipulation (including the clinical testing of FK506 and α-melanocyte-stimulating hormone analogs) promise to extend the range of future therapeutic options in AA and other IP collapse-related autoimmune diseases.
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Affiliation(s)
- Ralf Paus
- Centre for Dermatology Research, University of Manchester, NIHR Manchester Biomedical Research Centre and MAHSC, Manchester, UK.
| | - Silvia Bulfone-Paus
- Centre for Dermatology Research, University of Manchester, NIHR Manchester Biomedical Research Centre and MAHSC, Manchester, UK
| | - Marta Bertolini
- Department of Dermatology, University of Münster, Münster, Germany
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42
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Darwin E, Hirt PA, Fertig R, Doliner B, Delcanto G, Jimenez JJ. Alopecia Areata: Review of Epidemiology, Clinical Features, Pathogenesis, and New Treatment Options. Int J Trichology 2018; 10:51-60. [PMID: 29769777 PMCID: PMC5939003 DOI: 10.4103/ijt.ijt_99_17] [Citation(s) in RCA: 82] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Alopecia areata (AA) is a complex autoimmune condition that causes nonscarring hair loss. It typically presents with sharply demarcated round patches of hair loss and may present at any age. In this article, we review the epidemiology, clinical features, pathogenesis, and new treatment options of AA, with a focus on the immunologic mechanism underlying the treatment. While traditional treatment options such as corticosteroids are moderately effective, a better understanding of the disease pathogenesis may lead to the development of new treatments that are more directed and effective against AA. Sources were gathered from PubMed, Embase, and the Cochrane database using the keywords: alopecia, alopecia areata, hair loss, trichoscopy, treatments, pathogenesis, and epidemiology.
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Affiliation(s)
- Evan Darwin
- Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, Fl 33136, USA
| | - Penelope A Hirt
- Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, Fl 33136, USA
| | - Raymond Fertig
- Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, Fl 33136, USA
| | - Brett Doliner
- Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, Fl 33136, USA
| | - Gina Delcanto
- Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, Miami, Fl 33136, USA
| | - Joaquin J Jimenez
- Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, Fl 33136, USA
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43
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Michel L, Reygagne P, Benech P, Jean-Louis F, Scalvino S, Ly Ka So S, Hamidou Z, Bianovici S, Pouch J, Ducos B, Bonnet M, Bensussan A, Patatian A, Lati E, Wdzieczak-Bakala J, Choulot JC, Loing E, Hocquaux M. Study of gene expression alteration in male androgenetic alopecia: evidence of predominant molecular signalling pathways. Br J Dermatol 2017; 177:1322-1336. [PMID: 28403520 DOI: 10.1111/bjd.15577] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/07/2017] [Indexed: 01/01/2023]
Abstract
BACKGROUND Male androgenetic alopecia (AGA) is the most common form of hair loss in men. It is characterized by a distinct pattern of progressive hair loss starting from the frontal area and the vertex of the scalp. Although several genetic risk loci have been identified, relevant genes for AGA remain to be defined. OBJECTIVES To identify biomarkers associated with AGA. METHODS Molecular biomarkers associated with premature AGA were identified through gene expression analysis using cDNA generated from scalp vertex biopsies of hairless or bald men with premature AGA, and healthy volunteers. RESULTS This monocentric study reveals that genes encoding mast cell granule enzymes, inflammatory mediators and immunoglobulin-associated immune mediators were significantly overexpressed in AGA. In contrast, underexpressed genes appear to be associated with the Wnt/β-catenin and bone morphogenic protein/transforming growth factor-β signalling pathways. Although involvement of these pathways in hair follicle regeneration is well described, functional interpretation of the transcriptomic data highlights different events that account for their inhibition. In particular, one of these events depends on the dysregulated expression of proopiomelanocortin, as confirmed by polymerase chain reaction and immunohistochemistry. In addition, lower expression of CYP27B1 in patients with AGA supports the notion that changes in vitamin D metabolism contributes to hair loss. CONCLUSIONS This study provides compelling evidence for distinct molecular events contributing to alopecia that may pave the way for new therapeutic approaches.
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Affiliation(s)
- L Michel
- Inserm UMR976, Skin Research Institute, F-75475, Paris, France.,University Paris Diderot, Sorbonne Paris-Cité, Hôpital Saint-Louis, F-75475, Paris, France
| | - P Reygagne
- Centre Sabouraud, F-75475, Paris, France
| | - P Benech
- NICN UMR 7259 CNRS Faculté de Médecine, 13344, Marseille, France.,GENEX, 91160, Longjumeau, France
| | - F Jean-Louis
- Inserm UMR976, Skin Research Institute, F-75475, Paris, France.,University Paris Diderot, Sorbonne Paris-Cité, Hôpital Saint-Louis, F-75475, Paris, France
| | - S Scalvino
- Laboratoire BIO-EC, 91160, Longjumeau, France
| | - S Ly Ka So
- Inserm UMR976, Skin Research Institute, F-75475, Paris, France
| | - Z Hamidou
- Centre Sabouraud, F-75475, Paris, France
| | | | - J Pouch
- Plateforme de qPCR à Haut Débit Genomic Paris Centre, IBENS, 75005, Paris, France
| | - B Ducos
- Plateforme de qPCR à Haut Débit Genomic Paris Centre, IBENS, 75005, Paris, France.,Laboratoire de Physique Statistique, École Normale Supérieure, PSL Research University, University Paris Diderot, Sorbonne Paris-Cité, CNRS, 75005, Paris, France
| | - M Bonnet
- Inserm UMR976, Skin Research Institute, F-75475, Paris, France
| | - A Bensussan
- Inserm UMR976, Skin Research Institute, F-75475, Paris, France.,University Paris Diderot, Sorbonne Paris-Cité, Hôpital Saint-Louis, F-75475, Paris, France
| | | | - E Lati
- GENEX, 91160, Longjumeau, France.,Laboratoire BIO-EC, 91160, Longjumeau, France
| | | | | | - E Loing
- IEB-Lucas Meyer Cosmetics, 31520, Ramonville, France
| | - M Hocquaux
- IEB-Lucas Meyer Cosmetics, 31520, Ramonville, France
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44
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Prinz JC. Melanocytes: Target Cells of an HLA-C*06:02-Restricted Autoimmune Response in Psoriasis. J Invest Dermatol 2017; 137:2053-2058. [PMID: 28941475 DOI: 10.1016/j.jid.2017.05.023] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2017] [Revised: 05/08/2017] [Accepted: 05/26/2017] [Indexed: 12/17/2022]
Abstract
HLA-C*06:02 is the main psoriasis risk allele. By the unbiased analysis of a Vα3S1/Vβ13S1 T-cell receptor from pathogenic psoriatic CD8+ T cells, we had recently proven that HLA-C*06:02 directs an autoimmune response against melanocytes through autoantigen presentation in psoriasis and identified ADAMTSL5 as a melanocyte autoantigen. We concluded that psoriasis is based on a melanocyte-specific immune response and that HLA-C*06:02 may predispose to psoriasis via this newly identified autoimmune pathway. Understanding this pathway, however, requires more detailed explanation. It is based on the fact that an HLA class I-restricted autoreactive CD8+ T-cell response must be directed against a particular target cell type, because HLA class I molecules present peptide antigens generated from cytoplasmic (i.e., intracellular) proteins. This review summarizes the findings on the melanocyte-specific autoimmune response in the context of the immune mechanisms related to HLA function and T-cell receptor-antigen recognition. Identifying melanocytes as target cells of the psoriatic immune response now explains psoriasis as a primary autoimmune skin disease.
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Affiliation(s)
- Jörg Christoph Prinz
- Department of Dermatology, University Clinics, Ludwig Maximilian University of Munich, Munich, Germany.
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45
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Dobreva A, Paus R, Cogan NG. Analysing the dynamics of a model for alopecia areata as an autoimmune disorder of hair follicle cycling. MATHEMATICAL MEDICINE AND BIOLOGY-A JOURNAL OF THE IMA 2017; 35:387-407. [DOI: 10.1093/imammb/dqx009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Accepted: 06/26/2017] [Indexed: 12/27/2022]
Affiliation(s)
- Atanaska Dobreva
- Department of Mathematics, Florida State University, Tallahassee, FL, USA
| | - Ralf Paus
- Centre for Dermatology Research, University of Manchester, and NIHR Manchester Biomedical Research Centre, Manchester, UK
| | - N G Cogan
- Department of Mathematics, Florida State University, Tallahassee, FL, USA
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46
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Kachlany SC. Mechanisms of LtxA (Leukotoxin), a Potent New Anti-Inflammatory Agent for the Treatment of Alopecia Areata. J Investig Dermatol Symp Proc 2016; 17:19-22. [PMID: 26551939 DOI: 10.1038/jidsymp.2015.34] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Alopecia areata is an autoimmune condition where activated, pro-inflammatory white blood cells (WBCs) attack the hair follicles, resulting in hair loss. Migration of these activated WBCs from the blood stream and into the follicle tissue requires interaction between the integrin, lymphocyte function-associated antigen-1 (LFA-1) on WBCs, and ICAM-1 on vascular endothelial cells. High levels of active LFA-1 are uniquely expressed on WBCs that are involved in autoimmune and inflammatory conditions. The natural biologic agent LtxA (Leukothera) preferentially targets and depletes disease activated and malignant WBCs by binding to active LFA-1. The experimental drug has demonstrated significant therapeutic efficacy against autoimmune/inflammatory conditions such as psoriasis and allergic asthma in mouse models for these diseases. In addition, when injected into rodents, rhesus macaques, and dogs, LtxA was demonstrated to be physiologically active, biologically specific, and extremely well-tolerated. LFA-1 is an attractive target for therapy because it is only normally present on WBCs and has been shown to be activated and overexpressed on WBCs that are responsible for autoimmune/inflammatory conditions.
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Affiliation(s)
- Scott C Kachlany
- Department of Oral Biology, Rutgers University School of Dental Medicine, Newark, New Jersey, USA.,Actinobac Biomed, Inc., Kendall Park, New Jersey, USA
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47
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Abstract
PURPOSE OF REVIEW Vitiligo and alopecia areata are common, disfiguring skin diseases. Treatment options are limited and include nontargeted approaches, such as corticosteroids, topical calcineurin inhibitors, narrow band ultraviolet B phototherapy, and other immune-modifying agents. The purpose of this article is to review shared, novel mechanisms between vitiligo and alopecia areata, as well as discuss how they inform the development of future targeted treatments. RECENT FINDINGS Vitiligo and alopecia areata are both autoimmune diseases, and striking similarities in pathogenesis have been identified at the level of both the innate and adaptive immune system. Increased reactive oxygen species and high cellular stress level have been suggested as the initiating trigger of the innate immune system in both diseases, and genome-wide association studies have implicated risk alleles that influence both innate and adaptive immunity. Most importantly, mechanistic studies in mouse models of vitiligo and alopecia areata have specifically implicated an interferon (IFN)γ-driven immune response, including IFNγ, IFNγ-induced chemokines, and cytotoxic CD8 T cells as the main drivers of disease pathogenesis. These recent discoveries may reveal an effective strategy to develop new treatments, and several proof-of-concept clinical studies support this hypothesis. SUMMARY The identification of IFNγ-driven immune signaling pathways has enabled discoveries of potential new treatments for vitiligo and alopecia areata, and supports initiation of larger clinical trials.
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48
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Liu LY, King BA, Craiglow BG. Health-related quality of life (HRQoL) among patients with alopecia areata (AA): A systematic review. J Am Acad Dermatol 2016; 75:806-812.e3. [PMID: 27436156 DOI: 10.1016/j.jaad.2016.04.035] [Citation(s) in RCA: 109] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Revised: 04/10/2016] [Accepted: 04/12/2016] [Indexed: 11/16/2022]
Abstract
Alopecia areata (AA) is a common skin disease that is frequently emotionally devastating. Several studies have examined the effect of AA on health-related quality of life (HRQoL). We performed a systematic review of all published studies of HRQoL in patients with AA. Eleven studies met inclusion criteria, incorporating data from 1986 patients. Patients with AA consistently demonstrate poor HRQoL scores, with greater extent of scalp involvement associated with lower HRQoL. HRQoL experienced by patients with AA is similar to that seen in patients with other chronic skin diseases including atopic dermatitis and psoriasis.
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Affiliation(s)
- Lucy Y Liu
- Yale University School of Medicine, New Haven, Connecticut
| | - Brett A King
- Department of Dermatology, Yale University School of Medicine, New Haven, Connecticut; Yale University School of Medicine, New Haven, Connecticut
| | - Brittany G Craiglow
- Department of Dermatology, Yale University School of Medicine, New Haven, Connecticut; Department of Pediatrics, Yale University School of Medicine, New Haven, Connecticut; Yale University School of Medicine, New Haven, Connecticut.
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49
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Cardiovascular risk in patients with alopecia areata (AA): A propensity-matched retrospective analysis. J Am Acad Dermatol 2016; 75:151-4. [DOI: 10.1016/j.jaad.2016.02.1234] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Revised: 02/28/2016] [Accepted: 02/29/2016] [Indexed: 12/15/2022]
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50
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Pfannes EKB, Hadam S, Döge N, Fimmel S, Blume-Peytavi U, Vogt A. Mini-zone cyanoacrylate skin surface stripping: a new method for non-invasive sampling of scalp material. Exp Dermatol 2016; 25:555-6. [DOI: 10.1111/exd.13006] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/22/2016] [Indexed: 02/03/2023]
Affiliation(s)
- Eva K. B. Pfannes
- Clinical Research Center for Hair and Skin Science; Department of Dermatology and Allergy; Charité-Universitaetsmedizin Berlin; Berlin Germany
| | - Sabrina Hadam
- Clinical Research Center for Hair and Skin Science; Department of Dermatology and Allergy; Charité-Universitaetsmedizin Berlin; Berlin Germany
| | - Nadine Döge
- Clinical Research Center for Hair and Skin Science; Department of Dermatology and Allergy; Charité-Universitaetsmedizin Berlin; Berlin Germany
| | - Sabine Fimmel
- Clinical Research Center for Hair and Skin Science; Department of Dermatology and Allergy; Charité-Universitaetsmedizin Berlin; Berlin Germany
| | - Ulrike Blume-Peytavi
- Clinical Research Center for Hair and Skin Science; Department of Dermatology and Allergy; Charité-Universitaetsmedizin Berlin; Berlin Germany
| | - Annika Vogt
- Clinical Research Center for Hair and Skin Science; Department of Dermatology and Allergy; Charité-Universitaetsmedizin Berlin; Berlin Germany
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