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Quadri M, Palazzo E. The Role of the Neurotrophin Network in Skin Squamous Cell Cancer and the Novel Use of the Zebrafish System. JID INNOVATIONS 2024; 4:100295. [PMID: 39100386 PMCID: PMC11296245 DOI: 10.1016/j.xjidi.2024.100295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 05/23/2024] [Accepted: 05/24/2024] [Indexed: 08/06/2024] Open
Abstract
Cutaneous squamous cell carcinoma (cSCC) is the second most prevalent form of skin cancer. An increasing number of cSCCs are associated with dysregulation of key molecules that control skin homeostasis. These observations have increased interest in the role of neurotrophins and their receptors in the pathogenesis of cSCC. They have been demonstrated to have a considerable impact on the aggressiveness potential of skin cancer by both in vitro and in vivo models. In this context, mouse models are classically used to dissect proliferation versus differentiation balance, but they have some limitations in terms of time, space, and costs. Recently, zebrafish models have been implemented as a new tool to obtain information regarding the invasive capacity and metastasis of neoplastic cells. By xenotransplantation technique, cSCC cells from a patient's biopsy or cell line can be successfully characterized, with or without the presence of genetic manipulation or treatments. In addition, the evaluation of the immune microenvironment contributes to potentially identifying connections and homologies with humans. In this review, we retrace the role of the neurotrophin network in healthy and pathological skin, particularly in cSCC. We review how zebrafish models can be important tools for studying cSCC development, growth, and potential treatments.
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Affiliation(s)
- Marika Quadri
- DermoLAB, Department of Surgical, Medical, Dental and Morphological Science, University of Modena and Reggio Emilia, Modena, Italy
| | - Elisabetta Palazzo
- DermoLAB, Department of Surgical, Medical, Dental and Morphological Science, University of Modena and Reggio Emilia, Modena, Italy
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Van Acker MM, Schwartz RR, Andrews K, Seiffert-Sinha K, Sinha AA. Inheritance-Specific Dysregulation of Th1- and Th17-Associated Cytokines in Alopecia Areata. Biomolecules 2023; 13:1285. [PMID: 37759685 PMCID: PMC10527519 DOI: 10.3390/biom13091285] [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: 07/11/2023] [Revised: 08/15/2023] [Accepted: 08/18/2023] [Indexed: 09/29/2023] Open
Abstract
Autoimmune diseases tend to cluster in families, suggesting genetic predisposition to autoimmunity associated with familial background. We have previously reported similarities in gene expression patterns and PTPN22 polymorphisms between alopecia areata (AA) patients and their healthy relatives, but not unrelated healthy controls. However, the spectrum of disease promoting (or preventing) pathways that may be activated in blood relatives of AA patients remains to be defined. Here, we investigated the extent to which cytokines associated with the Th1 and Th17 pathway are differentially expressed in the blood of patients with AA and its clinical subtypes in comparison to both healthy relatives as well as unrelated healthy controls. A comprehensive set of Th1- and Th17-related cytokines were evaluated by ELISA. We found a significant elevation of the Th17 inducer IL-23, the Th17 product IL-17A, the Th1 hallmark cytokine IFNγ, and TNFα, a Th1 cytokine with relevance to the Th17 pathway in AA patients, regardless of disease subtype, compared to healthy individuals. On further examination, we found that healthy family members grouped together with patients in terms of elevated Th1- and Th17-pathway cytokines in an inheritance-specific manner, distinct from unrelated controls. The elevation of Th17-associated cytokines in healthy controls related to AA patients indicates that Th1 and Th17 dysregulation in AA may be genetically based. Of note, one unrelated control displayed elevated levels of IL-17A and IL-23 similar to those detected in patients. One year after initial blood draw, areas of beard hair loss consistent with the diagnosis of AA were reported by this individual, indicating that the elevation in Th17-related cytokines may have predictive value.
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Affiliation(s)
| | | | | | | | - Animesh A. Sinha
- Department of Dermatology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, NY 14203, USA
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Fetter T, de Graaf DM, Claus I, Wenzel J. Aberrant inflammasome activation as a driving force of human autoimmune skin disease. Front Immunol 2023; 14:1190388. [PMID: 37325658 PMCID: PMC10266227 DOI: 10.3389/fimmu.2023.1190388] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 05/09/2023] [Indexed: 06/17/2023] Open
Abstract
Autoimmune skin diseases are understood as conditions in which the adaptive immune system with autoantigen-specific T cells and autoantibody-producing B cells reacting against self-tissues plays a crucial pathogenic role. However, there is increasing evidence that inflammasomes, which are large multiprotein complexes that were first described 20 years ago, contribute to autoimmune disease progression. The inflammasome and its contribution to the bioactivation of interleukins IL-1β and IL-18 play an essential role in combating foreign pathogens or tissue damage, but may also act as a pathogenic driver of myriad chronic inflammatory diseases when dysfunctionally regulated. Inflammasomes containing the NOD-like receptor family members NLRP1 and NLRP3 as well as the AIM2-like receptor family member AIM2 have been increasingly investigated in inflammatory skin conditions. In addition to autoinflammatory diseases, which are often associated with skin involvement, the aberrant activation of the inflammasome has also been implied in autoimmune diseases that can either affect the skin besides other organs such as systemic lupus erythematosus and systemic sclerosis or are isolated to the skin in humans. The latter include, among others, the T-cell mediated disorders vitiligo, alopecia areata, lichen planus and cutaneous lupus erythematosus as well as the autoantibody-driven blistering skin disease bullous pemphigoid. Some diseases are characterized by both autoinflammatory and autoimmune responses such as the chronic inflammatory skin disease psoriasis. Further insights into inflammasome dysregulation and associated pathways as well as their role in forming adaptive immune responses in human autoimmune skin pathology could potentially offer a new field of therapeutic options in the future.
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Affiliation(s)
- Tanja Fetter
- Department of Dermatology and Allergy, University Hospital Bonn, Bonn, Germany
| | | | - Isabelle Claus
- Institute of Human Genetics, University of Bonn, School of Medicine and University Hospital Bonn, Bonn, Germany
| | - Joerg Wenzel
- Department of Dermatology and Allergy, University Hospital Bonn, Bonn, Germany
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4
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Tsai J, Gori S, Alt J, Tiwari S, Iyer J, Talwar R, Hinsu D, Ahirwar K, Mohanty S, Khunt C, Sutariya B, Jani K, Venkatasubbaiah V, Patel A, Meghapara J, Joshi K, Sahu R, Rana V, Nigade P, Talluri RS, Murty KVSN, Joshi K, Ramanathan V, Li A, Islam N, Snajdr I, Majer P, Rais R, Slusher BS, Garza LA. Topical SCD-153, a 4-methyl itaconate prodrug, for the treatment of alopecia areata. PNAS NEXUS 2023; 2:pgac297. [PMID: 36712931 PMCID: PMC9832969 DOI: 10.1093/pnasnexus/pgac297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 12/15/2022] [Indexed: 06/18/2023]
Abstract
Alopecia areata is a chronic hair loss disorder that involves autoimmune disruption of hair follicles by CD8+ T cells. Most patients present with patchy hair loss on the scalp that improves spontaneously or with topical and intralesional steroids, topical minoxidil, or topical immunotherapy. However, recurrence of hair loss is common, and patients with extensive disease may require treatment with oral corticosteroids or oral Janus kinase (JAK) inhibitors, both of which may cause systemic toxicities with long-term use. Itaconate is an endogenous molecule synthesized in macrophages that exerts anti-inflammatory effects. To investigate the use of itaconate derivatives for treating alopecia areata, we designed a prodrug of 4-methyl itaconate (4-MI), termed SCD-153, with increased lipophilicity compared to 4-MI (CLogP 1.159 vs. 0.1442) to enhance skin and cell penetration. Topical SCD-153 formed 4-MI upon penetrating the stratum corneum in C57BL/6 mice and showed low systemic absorption. When added to human epidermal keratinocytes stimulated with polyinosinic-polycytidylic acid (poly I:C) or interferon (IFN)γ, SCD-153 significantly attenuated poly I:C-induced interleukin (IL)-6, Toll-like receptor 3, IL-1β, and IFNβ expression, as well as IFNγ-induced IL-6 expression. Topical application of SCD-153 to C57BL/6 mice in the resting (telogen) phase of the hair cycle induced significant hair growth that was statistically superior to vehicle (dimethyl sulfoxide), the less cell-permeable itaconate analogues 4-MI and dimethyl itaconate, and the JAK inhibitor tofacitinib. Our results suggest that SCD-153 is a promising topical candidate for treating alopecia areata.
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Affiliation(s)
- Jerry Tsai
- Department of Dermatology, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Sadakatali Gori
- Johns Hopkins Drug Discovery, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Jesse Alt
- Johns Hopkins Drug Discovery, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Sandhya Tiwari
- In Vitro Biology, Sun Pharma Advanced Research Company, Savli, 391770, India
| | - Jitesh Iyer
- In Vitro Biology, Sun Pharma Advanced Research Company, Savli, 391770, India
| | - Rashmi Talwar
- In Vitro Biology, Sun Pharma Advanced Research Company, Savli, 391770, India
| | - Denish Hinsu
- Preclinical Pharmacology, Sun Pharma Advanced Research Company, Savli, 391770, India
| | - Kailash Ahirwar
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research Ahmedabad, Gandhinagar 382355, India
| | - Swayam Mohanty
- Preclinical Pharmacology, Sun Pharma Advanced Research Company, Savli, 391770, India
| | - Chintan Khunt
- Preclinical Pharmacology, Sun Pharma Advanced Research Company, Savli, 391770, India
| | - Brijesh Sutariya
- Department of Internal Medicine, Division of Hematology/Oncology, University of Iowa, Iowa City, IA 52242, USA
| | - Kaushal Jani
- Preclinical Pharmacology, Sun Pharma Advanced Research Company, Savli, 391770, India
| | | | - Ashok Patel
- Drug Metabolism and Pharmacokinetics, Sun Pharma Advanced Research Company, Savli, 391770, India
| | - Jasmin Meghapara
- Drug Metabolism and Pharmacokinetics, Sun Pharma Advanced Research Company, Savli, 391770, India
| | - Kaushal Joshi
- Drug Metabolism and Pharmacokinetics, Sun Pharma Advanced Research Company, Savli, 391770, India
| | - Rajanikanta Sahu
- Drug Metabolism and Pharmacokinetics, Sun Pharma Advanced Research Company, Savli, 391770, India
| | - Vijay Rana
- Drug Metabolism and Pharmacokinetics, Sun Pharma Advanced Research Company, Savli, 391770, India
| | - Prashant Nigade
- Drug Metabolism and Pharmacokinetics, Sun Pharma Advanced Research Company, Savli, 391770, India
| | - Ravi S Talluri
- Clinical Pharmacology, Sun Pharma Advanced Research Company, Mahakali, Mumbai 400093, India
| | | | - Kiritkumar Joshi
- Medicinal Chemistry, Sun Pharma Advanced Research Company, Savli 391770, India
| | - Vikram Ramanathan
- Translational Development, Sun Pharma Advanced Research Company, Savli 391770, India
| | - Ang Li
- Department of Dermatology, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Nasif Islam
- Department of Dermatology, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Ivan Snajdr
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic v.v.i., Prague 166 10, Czech Republic
| | - Pavel Majer
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic v.v.i., Prague 166 10, Czech Republic
| | - Rana Rais
- To whom correspondence should be addressed:
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Hair Follicle-Related MicroRNA-34a Serum Expression and rs2666433A/G Variant in Patients with Alopecia: A Cross-Sectional Analysis. Biomolecules 2022; 12:biom12050602. [PMID: 35625530 PMCID: PMC9138785 DOI: 10.3390/biom12050602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 04/10/2022] [Accepted: 04/14/2022] [Indexed: 01/10/2023] Open
Abstract
Alopecia areata (AA) is a type of immune-mediated alopecia. Recent studies have suggested microRNAs’ (miRNAs) implication in several cellular processes, including epidermal and hair follicle biology. Single nucleotide polymorphisms (SNPs) can modify gene expression levels, which may induce an autoimmune response. This case−control study included 480 participants (240 for each case/control group). MicroRNA-34a gene (MIR-34A) rs2666433A/G variant was genotyped using real-time allelic discrimination polymerase chain reaction (PCR). Additionally, circulatory miR-34a levels were quantified by quantitative reverse transcription PCR (qRT-PCR). On comparing between alopecia and non-alopecia cohorts, a higher frequency of A variant was noted among patients when compared to controls—A allele: 28 versus 18% (p < 0.001); A/A genotype: 9 versus 2%; A/G genotype: 39 versus 32% (p < 0.001). A/A and A/G carriers were more likely to develop alopecia under heterozygote comparison (OR = 1.83, 95% CI = 1.14−2.93), homozygote comparison (OR = 4.19, 95% CI = 1.33−13.1), dominant (OR = 2.0, 95% CI = 1.27−3.15), recessive (OR = 3.36, 95% CI = 1.08−10.48), over-dominant (OR = 1.65, 95% CI = 1.04−32.63), and log additive (OR = 1.91, 95% CI = 1.3−2.82) models. Serum miR-34a expression levels were upregulated in alopecia patients with a median and quartile fold change of 27.3 (1.42−2430). Significantly higher levels were more pronounced in A/A genotype patients (p < 0.01). Patients carrying the heterozygote genotype (rs2666433 * A/G) were two times more likely to develop more severe disease grades. Stratified analysis by sex revealed the same results. A high expression level was associated with concomitant autoimmune comorbidities (p = 0.001), in particular SLE (p = 0.007) and vitiligo (p = 0.049). In conclusion, the MIR34A rs2666433 (A/G) variant is associated with AA risk and severity in the studied population. Furthermore, high miR-34a circulatory levels could play a role in disease pathogenesis.
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Kim C, Shin JM, Kim D, Park S, Hong D, Jung KE, Kim CD, Seo YJ, Lee Y. Role of Substance P in Regulating Micro-Milieu of Inflammation in Alopecia Areata. Ann Dermatol 2022; 34:270-277. [PMID: 35948329 PMCID: PMC9365655 DOI: 10.5021/ad.21.161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 03/10/2022] [Accepted: 03/22/2022] [Indexed: 11/26/2022] Open
Abstract
Background Alopecia areata (AA) is an autoimmune disease characterized by chronic inflammation, the pathogenesis of which is unknown. Stress is believed to play a role; however, evidence remains insufficient. A recent study showed that substance P (SP) damaged hair follicles by causing neurogenic inflammation, activating perifollicular mast cells, and inducing keratinocyte apoptosis. Objective We aimed at studying the role of SP in AA pathogenesis. We investigated the SP levels in the lesional scalp tissues and serum. We also studied the effect of SP on the inflammatory response and hair growth in the outer root sheath (ORS) cells. Methods We compared the serum levels of SP in 58 AA patients and 28 healthy subjects. Then, we checked the expression of SP and SP receptor, neurokinin-1 receptor (NK-1R) in the scalps of AA patients and healthy controls using immunohistochemical staining. Finally, we analyzed the mRNA expression of inflammatory cytokines and hair growth-related factors in ORS cells. Results SP and NK-1R expression were markedly higher in the hair follicles and interfollicular epidermis of the scalp lesions of AA patients. However, there was no statistically significant difference in serum SP levels between controls and patients, regardless of the type of alopecia. SP significantly increased the mRNA expression of inflammatory cytokines and decreased hair growth-related growth factors in ORS cells, but the results were not dramatic. Conclusion SP triggered a localized micro-inflammation in lesional hair follicles, provoked an inflammatory response, and inhibited hair growth, thereby confirming the pathogenic role of SP in AA.
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Affiliation(s)
- Changhyeon Kim
- Department of Dermatology, School of Medicine, Chungnam National University, Daejeon, Korea
| | - Jung-Min Shin
- Department of Dermatology, School of Medicine, Chungnam National University, Daejeon, Korea
| | - Doyeon Kim
- Department of Dermatology, School of Medicine, Chungnam National University, Daejeon, Korea
| | - Sanghyun Park
- Department of Dermatology, School of Medicine, Chungnam National University, Daejeon, Korea
| | - Dongkyun Hong
- Department of Dermatology, School of Medicine, Chungnam National University, Daejeon, Korea
| | - Kyung Eun Jung
- Department of Dermatology, School of Medicine, Chungnam National University, Daejeon, Korea
| | - Chang-Deok Kim
- Department of Dermatology, School of Medicine, Chungnam National University, Daejeon, Korea
| | - Young-Joon Seo
- Department of Dermatology, School of Medicine, Chungnam National University, Daejeon, Korea
| | - Young Lee
- Department of Dermatology, School of Medicine, Chungnam National University, Daejeon, Korea
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Mathen C, Dsouza W. In vitro and clinical evaluation of umbilical cord-derived mesenchymal stromal cell-conditioned media for hair regeneration. J Cosmet Dermatol 2021; 21:740-749. [PMID: 33780589 DOI: 10.1111/jocd.14114] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 03/15/2021] [Accepted: 03/25/2021] [Indexed: 11/29/2022]
Abstract
BACKGROUND The field of regenerative medicine may present a non-drug, non-steroid, and non-invasive alternative toward addressing male and female pattern hair loss, a global concern. OBJECTIVE The aim was to carry out the in vitro and in vivo safety and efficacy evaluation of human umbilical cord-derived mesenchymal stromal cell-conditioned media (MSC-CM) for hair regeneration. METHODS Various in vitro parameters were used to estimate the consistency across various batches of MSC-CM. Total protein content was measured by the Biuret method and antioxidant activity by the 2,2-diphenyl-1-picryl hydrazyl (DPPH) assay. Fourier transform infrared spectroscopy (FTIR) analysis was used to determine spectral signatures and biocompatibility was carried out by the Neutral Red Uptake (NRU) and Sulforhodamine B (SRB) assays. In vivo safety and efficacy was evaluated in an experimental pilot study on 15 volunteers. RESULTS The in vitro results confirmed stability in the protein content (7 mg/ml), antioxidant activity (49.50%), and FTIR fingerprints of the MSC-CM. In the biocompatibility experiments by both SRB and NRU methods, no IC50 value could be derived at 100% concentration indicating safety at the cellular level. The in vivo results indicated safety with no side effects or adverse reactions, while 86.6% of the subjects experienced a positive effect of hair regeneration. CONCLUSION MSC-CM comprises a rich cocktail of physiologically balanced growth factors, cytokines, and beneficial proteins which may explain the bioactivity and mechanism of action in hair regrowth. This may indicate a biocompatible, gentle, and safe regenerative approach to address hair loss.
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Affiliation(s)
- Caroline Mathen
- Clinical R & D, OCT Therapies and Research Pvt Ltd, Mumbai, India
| | - Wilfrid Dsouza
- Clinical R & D, OCT Therapies and Research Pvt Ltd, Mumbai, India
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Lee TK, Kim B, Kim DW, Ahn JH, Sim H, Lee JC, Yang GE, Her Y, Park JH, Kim HS, Sim TH, Lee HS, Won MH. Effects of Decursin and Angelica gigas Nakai Root Extract on Hair Growth in Mouse Dorsal Skin via Regulating Inflammatory Cytokines. Molecules 2020; 25:E3697. [PMID: 32823713 PMCID: PMC7464339 DOI: 10.3390/molecules25163697] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 08/06/2020] [Accepted: 08/11/2020] [Indexed: 02/06/2023] Open
Abstract
This current study investigates the facilitative effects and mechanisms of decursin, a major component of Angelica gigas Nakai (AGN), and AGN root extract on hair growth in mice. We perform high-performance liquid chromatography on AGN extract to show it contains 7.3% decursin. Hairs in mouse dorsal skin are shaved distilled in water, 0.15% decursin, and 2% AGN root extract (0.15% decursin in the diluted extract) and topically applied twice a day for 17 days. Hematoxylin and eosin staining are done to examine the morphological changes in the hair follicles. To compare the effects of decursin and AGN extract on inflammatory cytokines in the dorsal skin, Western blot analysis and immunohistochemistry for tumor necrosis factor α (TNF-α) and interleukin (IL)-1β as pro-inflammatory cytokines, and IL-4 and IL-13 as anti-inflammatory cytokines are conducted. The results show that the application of decursin and AGN extract confer effects on hair growth. Hair growth is significantly facilitated from seven days after the treatments compared to that in the control group, and completely grown hair was found 17 days after the treatments. The protein levels and immunoreactivity of TNF-α and IL-1β in this case are significantly decreased, whereas the IL-4 and IL-13 levels and immunoreactivity are significantly increased compared to those in the control group. Additionally, high-mobility group box 1, an inflammatory mediator, is elevated by the topical application of decursin and AGN extract. Taken together, the treatment of mouse dorsal skin with AGE root extract containing decursin promotes hair growth by regulating pro- and/or anti-inflammatory cytokines. We, therefore, suggest that AGN root extract as well as decursin can be utilized as materials for developing hair growth-facilitating treatments.
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Affiliation(s)
- Tae-Kyeong Lee
- Department of Biomedical Science and Research Institute for Bioscience and Biotechnology, Hallym University, Chuncheon, Gangwon 24252, Korea; (T.-K.L.); (J.H.A.)
| | - Bora Kim
- Department of Neurobiology, School of Medicine, Kangwon National University, Chuncheon, Gangwon 24341, Korea; (B.K.); (H.S.); (J.-C.L.)
| | - Dae Won Kim
- Department of Biochemistry and Molecular Biology, and Research Institute of Oral Sciences, College of Dentistry, Gangnung-Wonju National University, Gangneung, Gangwon 25457, Korea;
| | - Ji Hyeon Ahn
- Department of Biomedical Science and Research Institute for Bioscience and Biotechnology, Hallym University, Chuncheon, Gangwon 24252, Korea; (T.-K.L.); (J.H.A.)
- Department of Neurobiology, School of Medicine, Kangwon National University, Chuncheon, Gangwon 24341, Korea; (B.K.); (H.S.); (J.-C.L.)
| | - Hyejin Sim
- Department of Neurobiology, School of Medicine, Kangwon National University, Chuncheon, Gangwon 24341, Korea; (B.K.); (H.S.); (J.-C.L.)
| | - Jae-Chul Lee
- Department of Neurobiology, School of Medicine, Kangwon National University, Chuncheon, Gangwon 24341, Korea; (B.K.); (H.S.); (J.-C.L.)
| | - Go Eun Yang
- Department of Radiology, Kangwon National University Hospital, Kangwon National University School of Medicine, Chuncheon, Gangwon 24289, Korea;
| | - Young Her
- Department of Dermatology, Kangwon National University Hospital, Kangwon National University School of Medicine, Chuncheon, Gangwon 24289, Korea;
| | - Joon Ha Park
- Department of Anatomy, College of Korean Medicine, Dongguk University, Gyeongju, Gyeongbuk 38066, Korea;
| | - Hyun Sook Kim
- Leefarm Co., Ltd., Hongcheon, Gangwon 25117, Korea; (H.S.K.); (T.H.S.)
| | - Tae Heung Sim
- Leefarm Co., Ltd., Hongcheon, Gangwon 25117, Korea; (H.S.K.); (T.H.S.)
| | - Hyun Sam Lee
- Leefarm Co., Ltd., Hongcheon, Gangwon 25117, Korea; (H.S.K.); (T.H.S.)
| | - Moo-Ho Won
- Department of Neurobiology, School of Medicine, Kangwon National University, Chuncheon, Gangwon 24341, Korea; (B.K.); (H.S.); (J.-C.L.)
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Kang MG, Park D, Han HY, Shim H, Hong Y, Moon J, Yoon S, Kwon B. RE-ORGA, a Korean Herb Extract, Can Prevent Hair Loss Induced by Dihydrotestosterone in Human Dermal Papilla Cells. Ann Dermatol 2019; 31:530-537. [PMID: 33911645 PMCID: PMC7992567 DOI: 10.5021/ad.2019.31.5.530] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Revised: 06/11/2019] [Accepted: 07/05/2019] [Indexed: 11/08/2022] Open
Abstract
Background Androgenic alopecia (AGA) is the most common type of hair loss. It is likely inherited genetically and is promoted by dihydrotestosterone. 5α-reductase has been proven a good target through finasteride use. However, the pathogenesis of AGA cannot be fully explained based only on dihydrotestosterone levels. Objective To identify similar hairloss inhibition activity of RE-ORGA with mode of action other than finasteride. Methods We prepared RE-ORGA from Korean herb mixtures. We performed MTT assays for cytotoxicity, Cell Counting Kit-8 assays for cell proliferation, and western blot to identify expression levels of 5α-reductase and Bax. RNA-sequencing was performed for the expression patterns of genes in dihydrotestosterone-activated pathways. Anti-inflammatory activity was also assessed by the expression levels of tumor necrosis factor-alpha (TNF-α) and interleukin 6. Results REORGA could promote the proliferation of human dermal papilla cells and showed low cytotoxicity. It also inhibited the expression of 5α-reductases and Bax in the cells. RNA-sequencing results verified that the mRNA expressions of SRD5A1, Bax, transforming growth factor-beta 1 (TGF-β1), and TGF-β1 induced transcript 1 (TGFβ1I1) were decreased, whereas expression of protein tyrosine kinase 2 beta (PTK2β) was more elevated. REORGA also showed anti-inflammatory activity through decreased mRNA levels of TNF-α. Conclusion Transcriptionally, up-regulation of PTK2β and concomitant down-regulation of TGFβ1I1 imply that RE-ORGA can modulate androgen receptor sensitivity, decreasing the expression of 5α-reductase type II and Bax together with TGF-β1 transcripts; RE-ORGA also showed partial anti-inflammatory activity. Overall, RE-ORGA is expected to alleviate hair loss by regulating 5α-reductase activity and the receptor's androgen sensitivity.
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Affiliation(s)
- Myung-Gyun Kang
- Department of Predictive Toxicology, Korea Institute of Toxicology, Daejeon, Korea
| | - Daeui Park
- Department of Predictive Toxicology, Korea Institute of Toxicology, Daejeon, Korea
| | - Hyoung-Yun Han
- Department of Predictive Toxicology, Korea Institute of Toxicology, Daejeon, Korea
| | - Hyeeun Shim
- Research Institute, Wooridul Huebrain Ltd., Seoul, Korea
| | - Yoonjung Hong
- Research Institute, Wooridul Huebrain Ltd., Seoul, Korea
| | - Jiyeon Moon
- Research Institute, WINNOVA Co., Ltd., Seoul, Korea
| | - Seokjoo Yoon
- Department of Predictive Toxicology, Korea Institute of Toxicology, Daejeon, Korea
| | - Bosun Kwon
- Research Institute, Wooridul Huebrain Ltd., Seoul, Korea
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Shin JM, Ko JW, Kwon IS, Choi JW, Hong D, Lee JH, Seo YJ, Kim CD, Lee JH, Lee Y, Park KD. Clinical Relevance for Serum Cold-Inducible RNA-Binding Protein Level in Alopecia Areata. Ann Dermatol 2019; 31:387-392. [PMID: 33911616 PMCID: PMC7992760 DOI: 10.5021/ad.2019.31.4.387] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Revised: 12/10/2018] [Accepted: 01/10/2019] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Alopecia areata (AA), a chronic, relapsing hair-loss disorder, is considered to be a T-cell-mediated autoimmune disease. Cold-inducible RNA-binding protein (CIRP) belongs to a family of cold-shock proteins that respond to cold stress, and has been identified as a damage-associated molecular pattern (DAMP) molecule that triggers the inflammatory response. Recent studies have shown that high-mobility group box 1, another DAMP molecule, is elevated in serum and scalp tissue of AA patients, suggesting a relationship between DAMP molecules and the pathogenesis of AA. OBJECTIVE To investigate the clinical significance of serum CIRP levels in AA. METHODS The serum levels of CIRP were compared between 68 patients with AA and 20 healthy controls. Additionally, the correlation between CIRP level and various clinical parameters was evaluated. RESULTS The serum CIRP levels were significantly higher in AA patients compared to healthy subjects. Moreover, there was an association between the serum CIRP level and clinical characteristics, such as disease duration and disease activity. However, there was no significant difference in the serum CIRP level among the clinical types of AA (AA multiplex, alopecia totalis, and alopecia universalis). CONCLUSION These results suggest that CIRP may play a significant role in the pathogenesis of AA and could be a potential biologic marker for monitoring the disease activity of AA.
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Affiliation(s)
- Jung-Min Shin
- Department of Dermatology, School of Medicine, Chungnam National University, Daejeon, Korea
| | - Jung-Woo Ko
- Department of Dermatology, School of Medicine, Chungnam National University, Daejeon, Korea
| | - In Sun Kwon
- Clinical Trials Center, Chungnam National University Hospital, Daejeon, Korea
| | - Jong-Won Choi
- Department of Dermatology, School of Medicine, Chungnam National University, Daejeon, Korea
| | - Dongkyun Hong
- Department of Dermatology, School of Medicine, Chungnam National University, Daejeon, Korea
| | - Jin-Hyup Lee
- Department of Dermatology, School of Medicine, Chungnam National University, Daejeon, Korea
| | - Young-Joon Seo
- Department of Dermatology, School of Medicine, Chungnam National University, Daejeon, Korea
| | - Chang-Deok Kim
- Department of Dermatology, School of Medicine, Chungnam National University, Daejeon, Korea
| | - Jeung-Hoon Lee
- Department of Dermatology, School of Medicine, Chungnam National University, Daejeon, Korea
| | - Young Lee
- Department of Dermatology, School of Medicine, Chungnam National University, Daejeon, Korea
| | - Kyung-Duck Park
- Department of Dermatology, School of Medicine, Chungnam National University, Daejeon, Korea
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Choi N, Sung JH. Udenafil Induces the Hair Growth Effect of Adipose-Derived Stem Cells. Biomol Ther (Seoul) 2019; 27:404-413. [PMID: 30971059 PMCID: PMC6609107 DOI: 10.4062/biomolther.2018.195] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Revised: 01/01/2019] [Accepted: 02/25/2019] [Indexed: 12/25/2022] Open
Abstract
Udenafil, which is a PDE5 inhibitor, is used to treat erectile dysfunction. However, it is unclear whether udenafil induces hair growth via the stimulation of adipose-derived stem cells (ASCs). In this study, we investigated whether udenafil stimulates ASCs and whether increased growth factor secretion from ASCs to facilitate hair growth. We found that subcutaneous injection of udenafil-treated ASCs accelerated telogen-to-anagen transition in vivo. We also observed that udenafil induced proliferation, migration and tube formation of ASCs. It also increased the secretion of growth factors from ASCs, such as interleukin-4 (IL-4) and IL12B, and the phosphorylation of ERK1/2 and NFκB. Furthermore, concomitant upregulation of IL-4 and IL12B mRNA levels was attenuated by ERK inhibitor or NFκB knockdown. Application of IL-4 or IL12B enhanced anagen induction in mice and increased hair follicle length in organ culture. The results indicated that udenafil stimulates ASC motility and increases paracrine growth factor, including cytokine signaling. Udenafil-stimulated secretion of cytokine from ASCs may promote hair growth via the ERK and NFκB pathways. Therefore, udenafil can be used as an ASC-preconditioning agent for hair growth.
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Affiliation(s)
- Nahyun Choi
- College of Pharmacy, Yonsei University, Incheon 21983, Republic of Korea.,STEMORE Co. Ltd., Incheon 21984, Republic of Korea
| | - Jong-Hyuk Sung
- College of Pharmacy, Yonsei University, Incheon 21983, Republic of Korea.,STEMORE Co. Ltd., Incheon 21984, Republic of Korea
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12
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El Tahlawi SM, El Eishi NH, Kahhal RK, Hegazy RA, El Hanafy GM, Abdel Hay RM, Shaker OG. Do Prolactin and its Receptor Play a Role in Alopecia Areata? Indian J Dermatol 2018; 63:241-245. [PMID: 29937561 PMCID: PMC5996625 DOI: 10.4103/ijd.ijd_590_17] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Context: Studying the link between prolactin and autoimmunity has gained much ground over the past years. Its role played in alopecia areata (AA) is not clear yet, as previous reports yielded controversial results. Aims: This study aimed to measure the serum level of prolactin and to detect the expression of its receptor in AA, in an attempt to highlight its possible role in the pathogenesis of this disease. Subjects and Methods: A case-control study of 30 AA patients and 20 controls from outpatient clinic were undertaken. Every patient was subjected to history taking and clinical examination to determine the severity of alopecia tool (SALT) score. Blood samples were taken from patients and controls to determine the serum prolactin level. Scalp biopsies were obtained from the lesional skin of patients and normal skin of controls for assessment of the prolactin receptor. Statistical Analysis: Depending upon the type of data, t-test, analysis of variance test, Chi-square, receiver operator characteristic curve were undertaken. Results: On comparing the serum prolactin level between patients and controls, no significant difference was found, while the mean tissue level of prolactin receptor was significantly higher in patients than in controls. In patients, a significant positive correlation was found between the prolactin receptor and the SALT score. Conclusions: Prolactin plays a role in AA, and this role is probably through the prolactin receptors rather than the serum prolactin level.
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Affiliation(s)
- Samar M El Tahlawi
- Department of Dermatology, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Nermeen H El Eishi
- Department of Dermatology, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Rima K Kahhal
- Department of Dermatology, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Rehab A Hegazy
- Department of Dermatology, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Ghada M El Hanafy
- Department of Dermatology, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Rania M Abdel Hay
- Department of Dermatology, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Olfat G Shaker
- Department of Medical Biochemistry and Molecular Biology, Faculty of Medicine, Cairo University, Cairo, Egypt
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13
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Double-stranded RNA induces inflammation via the NF-κB pathway and inflammasome activation in the outer root sheath cells of hair follicles. Sci Rep 2017; 7:44127. [PMID: 28266599 PMCID: PMC5339809 DOI: 10.1038/srep44127] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Accepted: 02/03/2017] [Indexed: 12/16/2022] Open
Abstract
Alopecia areata (AA), a chronic, relapsing, hair-loss disorder, is considered to be a T cell-mediated autoimmune disease. It affects approximately 1.7% of the population, but its precise pathogenesis remains to be elucidated. Despite the recent attention focused on the roles of inflammasomes in the pathogenesis of autoinflammatory diseases, little is known about inflammasome activation in AA. Thus, in this study, we investigated the pattern of NLRP3 inflammasome activation in the outer root sheath (ORS) cells of hair follicles. We found that interleukin (IL)-1β and caspase-1 expression was increased in hair follicle remnants and inflammatory cells of AA tissue specimens. After stimulation of ORS cells with the double-stranded (ds)RNA mimic polyinosinic:polycytidylic acid (poly[I:C]), the activation of caspase-1 and secretion of IL-1β were enhanced. Moreover, NLRP3 knockdown decreased this poly(I:C)-induced IL-1β production. Finally, we found that high-mobility group box 1 (HMGB1) translocated from the nucleus to the cytosol and was secreted into the extracellular space by inflammasome activation. Taken together, these findings suggest that ORS cells are important immunocompetent cells that induce NLRP3 inflammasomes. In addition, dsRNA-induced IL-1β and HMGB1 secretion from ORS cells may contribute to clarifying the pathogenesis and therapeutic targets of AA.
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14
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First two cases of alopecia areata during golimumab therapy. Joint Bone Spine 2016; 83:367-8. [DOI: 10.1016/j.jbspin.2015.08.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/05/2015] [Indexed: 11/19/2022]
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Alzolibani AA, Rasheed Z, Saif GB, Al-Dhubaibi MS, Al Robaee AA. Altered expression of intracellular Toll-like receptors in peripheral blood mononuclear cells from patients with alopecia areata. BBA CLINICAL 2016; 5:134-42. [PMID: 27114923 PMCID: PMC4826589 DOI: 10.1016/j.bbacli.2016.03.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Revised: 03/09/2016] [Accepted: 03/11/2016] [Indexed: 11/17/2022]
Abstract
BACKGROUND Toll-like receptors (TLRs) are pattern-recognition-receptors that sense a variety of pathogens and initiation of innate and adaptive immune responses. This study was undertaken to investigate the expression of TLRs in peripheral blood-mononuclear cells (PBMCs) of AA patients and to determine whether TLR-mediated inflammatory signals are important for the perspective of AA management. METHODS Gene expression of TLRs and T-helper (Th) type-1, Th-2, Th-17 and regulatory T-cell cytokines in PBMCs was quantified by TaqMan Assays. Production of these cytokines in serum samples was determined by sandwich ELISAs. RESULTS All TLRs (TLRs 1-10) were expressed in PBMCs of AA patients. Importantly intracellular TLRs (TLRs 3, 7, 8 and 9) were significantly up-regulated in AA patients as compared with controls (p < 0.05). Interleukin (IL)-2, TNF-α, and IL-17A gene expression in patients' PBMCs and their secretion in patients' sera were significantly higher as compared with their respective controls (p < 0.05). Whereas, TGF-β gene expression in patients' PBMCs and TGF-β protein level in patients' sera were significantly lower as compared with their controls (p < 0.05). CONCLUSION This is the first report that shows the comprehensive expression profile of TLRs in AA patients. We conclude that up-regulated expression of intracellular TLRs in PBMCs of AA patients may play an active role in abnormal regulation of Th-1, Th-17 and regulatory T-cell cytokines in alopecia areata. GENERAL SIGNIFICANCE Targeting of TLRs and their associated inflammatory signaling will open new areas of research; this may lead to the development of novel therapeutic targets for the treatment of AA or other skin disorders.
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Affiliation(s)
| | - Zafar Rasheed
- Department of Medical Biochemistry, College of Medicine, Qassim University, Buraidah, Saudi Arabia
- Corresponding author at: Department of Medical Biochemistry, College of Medicine, Qassim University, P.O. Box 6655, Buraidah 51452, Saudi Arabia.Department of Medical BiochemistryCollege of MedicineQassim UniversityP.O. Box 6655Buraidah51452Saudi Arabia
| | - Ghada Bin Saif
- Department of Dermatology, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | | | - Ahmad A. Al Robaee
- Department of Dermatology, College of Medicine, Qassim University, Buraidah, Saudi Arabia
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17
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Xu Y, Liu J, Hua L, Xiao Y, Tian Y, Guo S, Zhang X, He C, Wang L, Yu Y. An immune regulatory CCT repeat containing oligodeoxynucleotide capable of causing hair loss in male mice. Hum Exp Toxicol 2016; 35:1161-1172. [PMID: 26764315 DOI: 10.1177/0960327115626579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
An oligodeoxynucleotide with CCT repeats (CCT ODN) has been found in our previous study to selectively downregulate Toll-like receptor 7/9 (TLR7/9)-mediated immune responses both in vitro and in vivo. In this study, we unexpectedly found that CCT ODN induced severe patchy hair loss around the mouth in male F1 mice (female Balb/c × male C57BL/6) with lupus-like nephritis induced by injecting allogenic lymphocytes and also in male Balb/c mice, but not in female F1 mice and Balb/c mice and either gender of C57BL/6 mice. Increased infiltration of natural killer group 2, member D (NKG2D+) cells in hair loss skin and upregulated interferon-gamma (IFN-γ) messenger RNA expression in cultured splenocytes were observed in male Balb/c mice. The CCT ODN-conditioned supernatants of cultured mouse splenocytes caused catagen-like changes to hair follicles (HFs). We hypothesized that the CCT ODN could induce patchy hair loss in the male mice with certain genetic traits by mobilizing NKG2D+ cells to HFs and by inducing the production of IFN-γ from immune cells. Taken together these data indicated that a gender and genetic preference of immune-regulatory oligonucleotides is causing unexpected clinical situations such as hair loss.
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Affiliation(s)
- Y Xu
- 1 Department of Molecular Biology, College of Basic Medical Sciences, Norman Bethune Health Science Center, Jilin University, Changchun, Jilin, China
| | - J Liu
- 1 Department of Molecular Biology, College of Basic Medical Sciences, Norman Bethune Health Science Center, Jilin University, Changchun, Jilin, China
| | - L Hua
- 2 Department of Immunology, College of Basic Medical Sciences, Norman Bethune Unit of Medicine, Jilin University, Changchun, Jilin, China
| | - Y Xiao
- 1 Department of Molecular Biology, College of Basic Medical Sciences, Norman Bethune Health Science Center, Jilin University, Changchun, Jilin, China
| | - Y Tian
- 3 Department of Dermatology, The First Hospital of Jilin University, Changchun, Jilin, China
| | - S Guo
- 1 Department of Molecular Biology, College of Basic Medical Sciences, Norman Bethune Health Science Center, Jilin University, Changchun, Jilin, China
| | - X Zhang
- 2 Department of Immunology, College of Basic Medical Sciences, Norman Bethune Unit of Medicine, Jilin University, Changchun, Jilin, China
| | - C He
- 2 Department of Immunology, College of Basic Medical Sciences, Norman Bethune Unit of Medicine, Jilin University, Changchun, Jilin, China
| | - L Wang
- 1 Department of Molecular Biology, College of Basic Medical Sciences, Norman Bethune Health Science Center, Jilin University, Changchun, Jilin, China
| | - Y Yu
- 2 Department of Immunology, College of Basic Medical Sciences, Norman Bethune Unit of Medicine, Jilin University, Changchun, Jilin, China
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Suárez-Fariñas M, Ungar B, Noda S, Shroff A, Mansouri Y, Fuentes-Duculan J, Czernik A, Zheng X, Estrada YD, Xu H, Peng X, Shemer A, Krueger JG, Lebwohl MG, Guttman-Yassky E. Alopecia areata profiling shows TH1, TH2, and IL-23 cytokine activation without parallel TH17/TH22 skewing. J Allergy Clin Immunol 2015; 136:1277-87. [PMID: 26316095 DOI: 10.1016/j.jaci.2015.06.032] [Citation(s) in RCA: 162] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2015] [Revised: 06/24/2015] [Accepted: 06/25/2015] [Indexed: 01/01/2023]
Abstract
BACKGROUND Alopecia areata (AA) is a common T cell-mediated disorder with limited therapeutics. A molecular profile of cytokine pathways in AA tissues is lacking. Although studies have focused on TH1/IFN-γ responses, several observations support a shared genetic background between AA and atopy. OBJECTIVE We sought to define the AA scalp transcriptome and associated biomarkers with comparisons with atopic dermatitis (AD) and psoriasis. METHODS We performed microarray and RT-PCR profiling of 27 lesional and 17 nonlesional scalp samples from patients with AA for comparison with normal scalp samples (n = 6). AA gene expression was also compared with samples from patients with lesional or nonlesional AD and those with psoriasis. A fold change of greater than 1.5 and a false discovery rate of less than 0.05 were used for differentially expressed genes (DEGs). RESULTS We established the AA transcriptomes (lesional vs nonlesional: 734 DEGs [297 upregulated and 437 downregulated]; lesional vs normal: 4230 DEGs [1980 upregulated and 2250 downregulated]), including many upregulated immune and downregulated hair keratin genes. Equally impressive as upregulation in TH1/interferon markers (IFNG and CXCL10/CXCL9) were those noted in TH2 (IL13, CCL18, CCL26, thymic stromal lymphopoietin, and periostin), TH9/IL-9, IL-23 (p40 and p19), and IL-16 mediators (all P < .05). There were no increases in TH17/TH22 markers. Hair keratin (KRT) expressions (ie, KRT86 and KRT85) were significantly suppressed in lesional skin. Greater scalp involvement (>25%) was associated with greater immune and keratin dysregulation and larger abnormalities in nonlesional scalp samples (ie, CXCL10 and KRT85). CONCLUSIONS Our data associate the AA signature with TH2, TH1, IL-23, and IL-9/TH9 cytokine activation, suggesting consideration of anti-TH2, anti-TH1, and anti-IL-23 targeting strategies. Similar to psoriasis and AD, clinical trials with selective antagonists are required to dissect key pathogenic pathways.
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Affiliation(s)
- Mayte Suárez-Fariñas
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, NY; Department of Population Health Science and Policy, Icahn School of Medicine at Mount Sinai, New York, NY; Department of Genetics and Genomics Science, Icahn School of Medicine at Mount Sinai, New York, NY; Icahn Institute for Genomics and Multiscale Biology, Icahn School of Medicine at Mount Sinai, New York, NY; Laboratory for Investigative Dermatology, Rockefeller University, New York, NY
| | - Benjamin Ungar
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, NY; Laboratory for Investigative Dermatology, Rockefeller University, New York, NY
| | - Shinji Noda
- Laboratory for Investigative Dermatology, Rockefeller University, New York, NY
| | - Anjali Shroff
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Yasaman Mansouri
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, NY
| | | | - Annette Czernik
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Xiuzhong Zheng
- Laboratory for Investigative Dermatology, Rockefeller University, New York, NY
| | - Yeriel D Estrada
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Hui Xu
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Xiangyu Peng
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Avner Shemer
- Department of Dermatology, Tel-Hashomer, Tel Aviv, Israel
| | - James G Krueger
- Laboratory for Investigative Dermatology, Rockefeller University, New York, NY
| | - Mark G Lebwohl
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Emma Guttman-Yassky
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, NY; Department of Genetics and Genomics Science, Icahn School of Medicine at Mount Sinai, New York, NY; Laboratory for Investigative Dermatology, Rockefeller University, New York, NY; Department of Immunology, Icahn School of Medicine at Mount Sinai, New York, NY.
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Ryu S, Lee Y, Hyun MY, Choi SY, Jeong KH, Park YM, Kang H, Park KY, Armstrong CA, Johnson A, Song PI, Kim BJ. Mycophenolate antagonizes IFN-γ-induced catagen-like changes via β-catenin activation in human dermal papilla cells and hair follicles. Int J Mol Sci 2014; 15:16800-15. [PMID: 25247578 PMCID: PMC4200814 DOI: 10.3390/ijms150916800] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2014] [Revised: 08/23/2014] [Accepted: 09/03/2014] [Indexed: 12/12/2022] Open
Abstract
Recently, various immunosuppressant drugs have been shown to induce hair growth in normal hair as well as in alopecia areata and androgenic alopecia; however, the responsible mechanism has not yet been fully elucidated. In this study, we investigate the influence of mycophenolate (MPA), an immunosuppressant, on the proliferation of human dermal papilla cells (hDPCs) and on the growth of human hair follicles following catagen induction with interferon (IFN)-γ. IFN-γ was found to reduce β-catenin, an activator of hair follicle growth, and activate glycogen synthase kinase (GSK)-3β, and enhance expression of the Wnt inhibitor DKK-1 and catagen inducer transforming growth factor (TGF)-β2. IFN-γ inhibited expression of ALP and other dermal papillar cells (DPCs) markers such as Axin2, IGF-1, and FGF 7 and 10. MPA increased β-catenin in IFN-γ-treated hDPCs leading to its nuclear accumulation via inhibition of GSK3β and reduction of DKK-1. Furthermore, MPA significantly increased expression of ALP and other DPC marker genes but inhibited expression of TGF-β2. Therefore, we demonstrate for the first time that IFN-γ induces catagen-like changes in hDPCs and in hair follicles via inhibition of Wnt/β-catenin signaling, and that MPA stabilizes β-catenin by inhibiting GSK3β leading to increased β-catenin target gene and DP signature gene expression, which may, in part, counteract IFN-γ-induced catagen in hDPCs.
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Affiliation(s)
- Sunhyo Ryu
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul 137-701, Korea.
| | - Yonghee Lee
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul 137-701, Korea.
| | - Moo Yeol Hyun
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul 137-701, Korea.
| | - Sun Young Choi
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul 137-701, Korea.
| | - Kwan Ho Jeong
- Department of Dermatology, St. Paul's Hospital, College of Medicine, the Catholic University of Korea, Seoul 137-701, Korea.
| | - Young Min Park
- Department of Dermatology, Seoul St. Mary's Hospital, College of Medicine, the Catholic University of Korea, Seoul 137-701, Korea.
| | - Hoon Kang
- Department of Dermatology, St. Paul's Hospital, College of Medicine, the Catholic University of Korea, Seoul 137-701, Korea.
| | - Kui Young Park
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul 137-701, Korea.
| | - Cheryl A Armstrong
- Department of Dermatology, Denver Health Medical Center, Denver, CO 80204, USA.
| | - Andrew Johnson
- Department of Dermatology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA.
| | - Peter I Song
- Department of Dermatology, University of Colorado Denver Anschutz Medical Campus, Aurora, CO 80045, USA.
| | - Beom Joon Kim
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul 137-701, Korea.
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Younan DNA, Agamia N, Elshafei A, Ebeid N. Serum level of macrophage migration inhibitory factor (MIF) in Egyptians with alopecia areata and its relation to the clinical severity of the disease. J Clin Lab Anal 2014; 29:74-9. [PMID: 24687398 DOI: 10.1002/jcla.21731] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2013] [Accepted: 11/18/2013] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Alopecia areata (AA) is a common dermatological problem that manifests as sudden loss of hair without any inflammation or scarring. Various cytokines are implicated in the pathogenesis of this disease. Macrophage migration inhibitory factor (MIF) is located at an upstream position in the events leading to the possible dysregulated immuno-inflammatory responses, and the high level of this cytokine in AA may suggest a role of MIF in the pathogenesis of AA. METHODS This case-control study was carried out on 31 AA patients with different grades of severity and 15 apparently healthy subjects. Serum MIF level was measured by ELISA, and was correlated with the clinical severity of the disease using SALT (severity of alopecia tool) scoring system. RESULTS In this study, there was a significant elevation in serum MIF levels in AA patients in comparison with controls. There was also a positive correlation between MIF levels and clinical severity and disease duration. CONCLUSION MIF seems to have an essential role in the etiopathogenesis of AA. So, it is considered to be a promising target in the therapy of autoimmune diseases and as a future predictor of alopecia activity. Anti-MIF therapy might be added as one of the new biological treatments for AA.
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Alfadhli S, Nanda A. Genetic analysis of interleukin-1 receptor antagonist and interleukin-1β single-nucleotide polymorphisms C-511T and C+3953T in alopecia areata: susceptibility and severity association. Clin Exp Med 2013; 14:197-202. [PMID: 23584371 DOI: 10.1007/s10238-013-0228-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2012] [Accepted: 01/29/2013] [Indexed: 01/08/2023]
Abstract
The present study was aimed to explore the effect of two selected polymorphisms from interleukin-1β (IL-1β) gene [SNPs -511 and +3953] and a variable number of tandem repeat (VNTR) from interleukin-1 receptor antagonist (IL-1RN) on the susceptibility and severity of alopecia areata (AA) in Kuwaiti subjects. IL-1β SNPs C-511T, C+3953T, and IL-1RN VNTR were screened in 96 alopecia patients classified clinically, according to the disease severity as patchy (P), semiuniversalis (SU), and universalis (U), and in 100 ethnically matched healthy controls. Polymerase chain reaction followed by restriction fragment length polymorphism and direct DNA sequencing were employed for genotyping. Comparing the stratified AA cases based on severity, IL-β SNP C-511T showed a significant association (genotype and allelotype levels p = 0.03 and p = 0.028, respectively). Genotype CC was 50 % more frequent in U cases than in P or SU. When P and SU were grouped and tested against U, a significant difference was observed (genotype and allelotype levels p = 0.006 and p = 0.008, respectively). Compared to genotype CT, carriers of IL-1β -511 CC genotype showed an increased risk to develop severe AA (p = 0.004, OR = 4.14, 95 % CI = 1.61-10.69). Four alleles and genotypes (1/1, 1/3, 1/4, and 2/2) of IL-1RN VNTR were detected in AA patients while only two (1/1 and 1/3) in controls. IL-1RN VNTR showed genotype and allelotype association with AA (p = 0.05 and p = 0.025, respectively). Our results showed that IL-1β and IL-1RN VNTR are significantly associated with the susceptibility to alopecia areata. Allele C of the IL-β C-511T SNP is linked to the severe form of AA.
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Affiliation(s)
- Suad Alfadhli
- Department of Medical Laboratory Sciences, Faculty of Allied Health Sciences, Kuwait University, PO Box 31470, Sulaibekhat, Kuwait, Kuwait,
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Kasumagic-Halilovic E, Prohic A, Cavaljuga S. Tumor necrosis factor-alpha in patients with alopecia areata. Indian J Dermatol 2012; 56:494-6. [PMID: 22121261 PMCID: PMC3221206 DOI: 10.4103/0019-5154.87124] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
BACKGROUND Alopecia areata (AA) is a common form of localized, nonscarring hair loss. It is characterized by the loss of hair in patches, total loss of scalp hair (alopecia totalis, AT), or total loss of body hair (alopecia universalis, AU). The cause of AA is unknown, although most evidence supports the hypothesis that AA is a T-cell-mediated autoimmune disease of the hair follicle and that cytokines play an important role. AIMS The aim of the study was to compare the serum levels of tumor necrosis factor-alpha (TNF-α) in patients with AA and the healthy subjects and also to investigate the difference between the localized form of the disease with the extensive forms like AT and AU. MATERIALS AND METHODS Sixty patients with AA and 20 healthy controls were enrolled in the study. Forty-six patients had localized AA (LAA), and 14 patients had AT, AU, or AT/AU. The serum levels of TNF-α were measured using enzyme-linked immunoassay techniques. RESULTS Serum levels of TNF-α were significantly higher in AA patients than in controls (10.31 ± 1.20 pg ml vs 9.59 ± 0.75 pg/ml, respectively). There was no significant difference in serum levels of TNF-α between patients with LAA and those with extensive forms of the disease. CONCLUSION Our findings support the evidence that elevation of serum TNF-α is associated with AA. The exact role of serum TNF-α in AA should be additionally investigated in future studies.
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Effects of the Lexington LaserComb on hair regrowth in the C3H/HeJ mouse model of alopecia areata. Lasers Med Sci 2011; 27:431-6. [PMID: 21739260 DOI: 10.1007/s10103-011-0953-7] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2011] [Accepted: 06/20/2011] [Indexed: 02/08/2023]
Abstract
Alopecia areata (AA) is a common autoimmune disease that presents with non-scarring alopecia. It is characterized by intra- or peri-follicular lymphocytic infiltrates composed of CD4+ and CD8+ T-cells on histology. To this day, few treatments are effective for AA. Here we present findings of using a low-level laser comb to alleviate the symptoms of AA in a C3H/HeJ mouse model for AA. Fourteen C3H/HeJ mice with induced AA were used in this study. Two were killed to confirm AA through histology. The remaining 12 mice were randomized into two groups; group I received HairMax LaserComb (wavelength: 655 nm, beam diameter <5 mm; divergence 57 mrad; nine lasers) for 20 s daily, three times per week for a total of 6 weeks; group II was treated similarly, except that the laser was turned off (sham-treated). After 6 weeks of LaserComb treatment, hair regrowth was observed in all the mice in group I (laser-treated) but none in group II (sham-treated). On histology, increased number of anagen hair follicles was observed in laser-treated mice. On the other hand, sham-treated mice demonstrated hair follicles in the telogen phase with no hair shaft. LaserComb seems to be an effective and convenient device for the treatment of AA in the C3H/HeJ mouse model. Human studies are required to determine the efficacy and safety of this device for AA therapy.
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Chu SY, Chen YJ, Tseng WC, Lin MW, Chen TJ, Hwang CY, Chen CC, Lee DD, Chang YT, Wang WJ, Liu HN. Comorbidity profiles among patients with alopecia areata: the importance of onset age, a nationwide population-based study. J Am Acad Dermatol 2011; 65:949-56. [PMID: 21616562 DOI: 10.1016/j.jaad.2010.08.032] [Citation(s) in RCA: 151] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2010] [Revised: 08/26/2010] [Accepted: 08/30/2010] [Indexed: 02/08/2023]
Abstract
BACKGROUND Alopecia areata (AA) is considered an autoimmune disease with undetermined pathogenesis. Age at onset predicts distinct outcomes. A nationwide study of the relationship of AA with associated diseases stratified by onset age has rarely been reported. OBJECTIVE We sought to clarify the role of atopic and autoimmune diseases in AA, thereby better understanding its pathogenesis. METHODS A total of 4334 patients with AA were identified from the National Health Insurance Database in Taiwan from 1996 to 2008. A national representative cohort of 784,158 persons served as control subjects. RESULTS Among patients with AA, there were significant associations with vitiligo, lupus erythematosus, psoriasis, atopic dermatitis, autoimmune thyroid disease, and allergic rhinitis. Different ages at onset resulted in disparate comorbidities. Increased risk of atopic dermatitis (odds ratio [OR] 3.82, 95% confidence interval 2.67-5.45) and lupus erythematosus (OR 9.76, 95% confidence interval 3.05-31.21) were found in childhood AA younger than 10 years. Additional diseases including psoriasis (OR 2.43) and rheumatoid arthritis (OR 2.57) appeared at onset age 11 to 20 years. Most atopic and autoimmune diseases were observed at onset ages of 21 to 60 years. With onset age older than 60 years, thyroid disease (OR 2.52) was highly related to AA. Moreover, patients with AA had higher risk for more coexisting diseases than control subjects. LIMITATIONS We could not differentiate hypothyroidism from hyperthyroidism. CONCLUSIONS AA is related to various atopic and autoimmune diseases. Different associated diseases in each onset age group of AA can allow clinician to efficiently investigate specific comorbidities.
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Affiliation(s)
- Szu-Ying Chu
- Department of Dermatology, Taipei Veterans General Hospital, Taipei, Taiwan
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Gregoriou S, Papafragkaki D, Kontochristopoulos G, Rallis E, Kalogeromitros D, Rigopoulos D. Cytokines and other mediators in alopecia areata. Mediators Inflamm 2010; 2010:928030. [PMID: 20300578 PMCID: PMC2837895 DOI: 10.1155/2010/928030] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2009] [Revised: 01/28/2010] [Accepted: 01/28/2010] [Indexed: 11/17/2022] Open
Abstract
Alopecia areata, a disease of the hair follicles with multifactorial etiology and a strong component of autoimmune origin, has been extensively studied as far as the role of several cytokines is concerned. So far, IFN-gamma, interleukins, TNF-alpha, are cytokines that are well known to play a major role in the pathogenesis of the disease, while several studies have shown that many more pathways exist. Among them, MIG, IP-10, BAFF, HLA antigens, MIG, as well as stress hormones are implicated in disease onset and activity. Within the scope of this paper, the authors attempt to shed light upon the complexity of alopecia areata underlying mechanisms and indicate pathways that may suggest future treatments.
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Affiliation(s)
- Stamatis Gregoriou
- Andreas Sygros Hospital, University of Athens Medical School, 5 Ionos Dragoumi Street, 16121 Athens, Greece.
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26
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Lee D, Hong SK, Park SW, Hur DY, Shon JH, Shin JG, Hwang SW, Sung HS. Serum levels of IL-18 and sIL-2R in patients with alopecia areata receiving combined therapy with oral cyclosporine and steroids. Exp Dermatol 2010; 19:145-7. [DOI: 10.1111/j.1600-0625.2009.00937.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Mlczoch L, Attarbaschi A, Dworzak M, Gadner H, Mann G. Alopecia areata and multifocal bone involvement in a young adult with Hodgkin's disease. Leuk Lymphoma 2009; 46:623-7. [PMID: 16019495 DOI: 10.1080/10428190500032570] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
A 17-year-old girl presented with a 3 month history of alopecia areata, a generalized scaling skin, enlargement of the inguinal lymph nodes and severe back pain. Staging procedures revealed multifocal bone disease and generalized lymphadenopathy. The diagnosis of nodular sclerosing Hodgkin's disease was established by biopsies of the os ileum and a left inguinal lymph node. Complete clinical remission was achieved after 2 OPPA (vincristine, prednisone, procarbazine, and doxorubicin) and 4 COPP (cyclophosphamide, vincristine, prednisone, and procarbazine) cycles and treatment completed with involved-field irradiation. After the completion of therapy, skeletal lesions had mostly resolved or become sclerotic and the patient had normal hair regrowth and skin appearance. Conclusively, this case illustrates that alopecia areata may occur as a paraneoplastic phenomenon or an autoimmune process related to the deranged cellular immune system in children and adolescents with Hodgkin's disease.
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Abstract
T cells assume a fundamental function in immunosurveillance and maintenance of the cutaneous immune barrier, yet derangement of their requisite role effects a range of cutaneous autoimmune diseases with significant associated morbidity. While blistering skin diseases, such as pemphigus vulgaris (PV), pemphigus foliaceus (PF) and bullous pemphigoid (BP) are mediated by antibodies directed against autoantigens found in the skin, recent evidence has shown that T cell activation is crucial for the initiation and coordination of this humoral response. Non-blistering skin diseases, such as alopecia areata (AA), vitiligo (VL) and psoriasis (PS) are increasingly believed to be directly mediated by the activities of autoreactive T cells. Here, we examine T lymphocyte control of antibody-mediated and cell-mediated processes involved in the pathoimmunology of the above mentioned skin diseases.
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Affiliation(s)
- Selwyn Chow
- Department of Dermatology, Weill Medical College of Cornell University, New York, NY 10021, USA
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29
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Koc E, Tunca M, Akar A, Kurumlu Z. Lack of efficacy of topical imiquimod in the treatment of patchy alopecia areata. Int J Dermatol 2008; 47:1088-9. [DOI: 10.1111/j.1365-4632.2008.03327.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Siebenhaar F, Sharov AA, Peters EMJ, Sharova TY, Syska W, Mardaryev AN, Freyschmidt-Paul P, Sundberg JP, Maurer M, Botchkarev VA. Substance P as an Immunomodulatory Neuropeptide in a Mouse Model for Autoimmune Hair Loss (Alopecia Areata). J Invest Dermatol 2007; 127:1489-97. [PMID: 17273166 DOI: 10.1038/sj.jid.5700704] [Citation(s) in RCA: 81] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Alopecia areata (AA) is an autoimmune disorder of the hair follicle characterized by inflammatory cell infiltrates around actively growing (anagen) hair follicles. Substance P (SP) plays a critical role in the cutaneous neuroimmune network and influences immune cell functions through the neurokinin-1 receptor (NK-1R). To better understand the role of SP as an immunomodulatory neuropeptide in AA, we studied its expression and effects on immune cells in a C3H/HeJ mouse model for AA. During early stages of AA development, the number of SP-immunoreactive nerve fibers in skin is increased, compared to non-affected mice. However, during advanced stages of AA, the number of SP-immunoreactive nerves and SP protein levels in skin are decreased, whereas the expression of the SP-degrading enzyme neutral endopeptidase (NEP) is increased, compared to control skin. In AA, NK-1R is expressed on CD8+ lymphocytes and macrophages accumulating around affected hair follicles. Additional SP supply to the skin of AA-affected mice leads to a significant increase of mast cell degranulation and to accelerated hair follicle regression (catagen), accompanied by an increase of CD8+ cells-expressing granzyme B. These data suggest that SP, NEP, and NK-1R serve as important regulators in the molecular signaling network modulating inflammatory response in autoimmune hair loss.
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Affiliation(s)
- Frank Siebenhaar
- Department of Dermatology, Boston University School of Medicine, Boston, Massachusetts 02118, USA
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Boivin WA, Jiang H, Utting OB, Hunt DWC. Influence of interleukin-1α on androgen receptor expression and cytokine secretion by cultured human dermal papilla cells. Exp Dermatol 2006; 15:784-93. [PMID: 16984260 DOI: 10.1111/j.1600-0625.2006.00462.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Dermal papilla cells (DPC) control the growth character of the hair follicle through their elaboration of mitogenic factors and extracellular matrix components. Further, the dermal papilla is a primary site of androgen action in the hair follicle. Interleukin-1alpha (IL-1alpha) is prominent in skin wounding and inflammatory responses although regarded as a negative hair growth regulator. We studied the effect of IL-1alpha and the potent androgen 5alpha-dihydrotestosterone (DHT) on the expression of the androgen receptor (AR) and various factors secreted by cultured human temporal scalp DPC. IL-1alpha triggered cellular changes consistent with nuclear factor-kappaB pathway activation as well as reduced AR mRNA and protein expression levels for DHT-stimulated DPC. This cytokine also increased DPC supernatant keratinocyte growth factor (KGF), vascular endothelial growth factor (VEGF), IL-8 and granulocyte-macrophage colony-stimulating factor (GM-CSF) concentrations. IL-1alpha did not influence DPC supernatant levels of transforming growth factor-beta1, a negative hair growth regulator. The stimulatory effect of IL-1alpha on DPC VEGF, GM-CSF, KGF, and IL-8 expression was also evident at the mRNA level for these cytokines. IL-1alpha also increased mRNA transcript levels of protease-nexin-1, a secreted serine protease inhibitor expressed in the dermal papilla of anagen-stage hair follicles. Although DHT did not affect supernatant cytokine concentrations, the androgen altered mRNA transcript levels of several factors for DPC co-stimulated with IL-1alpha. In consideration of its in vitro activity profile, IL-1alpha may be an important modifier of dermal papilla activity as well as potentially influence androgen-regulated gene expression in DPC.
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Affiliation(s)
- Wendy A Boivin
- Scientific Affairs: Dermatology, QLT Inc., 887 Great Northern Way, Vancouver, British Columbia, Canada
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Kasper M, Schnidar H, Neill GW, Hanneder M, Klingler S, Blaas L, Schmid C, Hauser-Kronberger C, Regl G, Philpott MP, Aberger F. Selective modulation of Hedgehog/GLI target gene expression by epidermal growth factor signaling in human keratinocytes. Mol Cell Biol 2006; 26:6283-98. [PMID: 16880536 PMCID: PMC1592816 DOI: 10.1128/mcb.02317-05] [Citation(s) in RCA: 418] [Impact Index Per Article: 23.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Hedgehog (HH)/GLI signaling plays a critical role in epidermal development and basal cell carcinoma. Here, we provide evidence that epidermal growth factor receptor (EGFR) signaling modulates the target gene expression profile of GLI transcription factors in epidermal cells. Using expression profiling and quantitative reverse transcriptase PCR, we identified a set of 19 genes whose transcription is synergistically induced by GLI1 and parallel EGF treatment. Promoter studies of a subset of GLI/EGF-regulated genes, including the genes encoding interleukin-1 antagonist IL1R2, Jagged 2, cyclin D1, S100A7, and S100A9, suggest convergence of EGFR and HH/GLI signaling at the level of promoters of selected direct GLI target genes. Inhibition of EGFR and MEK/ERK but not of phosphatidylinositol 3-kinase/AKT abrogated synergistic activation of GLI/EGF target genes, showing that EGFR can signal via RAF/MEK/ERK to cooperate with GLI proteins in selective target gene regulation. Coexpression of the GLI/EGF target IL1R2, EGFR, and activated ERK1/2 in human anagen hair follicles argues for a cooperative role of EGFR and HH/GLI signaling in specifying the fate of outer root sheath (ORS) cells. We also show that EGF treatment neutralizes GLI-mediated induction of epidermal stem cell marker expression and provide evidence that EGFR signaling is essential for GLI-induced cell cycle progression in epidermal cells. The results suggest that EGFR signaling modulates GLI target gene profiles which may play an important regulatory role in ORS specification, hair growth, and possibly cancer.
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Affiliation(s)
- Maria Kasper
- Department of Molecular Biology, University of Salzburg, Hellbrunnerstrasse 34, A-5020 Salzburg, Austria
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Abstract
Alopecia areata is a form of hair loss believed to be due to an anti-hair-bulb autoimmune process in which CD4 and CD8 lymphocytes affect the peribulb area. Alopecia universalis is the most severe form of alopecia areata and manifests itself as a complete loss of all body hair. The authors present the case of a 44-year-old psoriasis patient with a 20-year history of alopecia universalis who failed to respond to etanercept in terms of skin psoriasis and alopecia universalis, while reporting improvement in arthropathy. While tumor necrosis factor-alpha inhibitors succeeded in the treatment of some autoimmune disorders, reports of alopecia areata failures and this one of alopecia universalis demonstrate resistance to such treatment. Tumor necrosis factor-alpha inhibitors seem to not represent an effective treatment modality for alopecia universalis. The understanding gained from this experience should redirect the aims of alopecia areata therapy toward alternate mechanistic interventions.
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Affiliation(s)
- William Abramovits
- Department of Dermatology, Baylor University Medical Center, University of Texas Southwestern Medical School, Dallas, TX 75230, USA.
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Strober BE, Siu K, Alexis AF, Kim G, Washenik K, Sinha A, Shupack JL. Etanercept does not effectively treat moderate to severe alopecia areata: an open-label study. J Am Acad Dermatol 2006; 52:1082-4. [PMID: 15928633 DOI: 10.1016/j.jaad.2005.03.039] [Citation(s) in RCA: 65] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
In this prospective, open-label pilot study, we evaluated the safety and efficacy of etanercept, a TNF-alpha inhibitor, in the treatment of moderate to severe alopecia areata, alopecia totalis, or alopecia universalis. Seventeen otherwise healthy adults with moderate to severe alopecia areata were enrolled. The primary outcome measure was the extent of hair regrowth during and after the end of treatment as evaluated by the Severity of Alopecia Tool (the SALT score). After between 8 and 24 weeks of continuous treatment with etanercept 50 mg given subcutaneously twice weekly, significant regrowth of hair was not shown in any of the subjects treated. Based on these results, etanercept appears to be ineffective in treating subjects with treatment-refractory, moderate to severe alopecia areata, alopecia totalis, or alopecia universalis.
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Affiliation(s)
- Bruce E Strober
- The Ronald O. Perelman Department of Dermatology, New York University School of Medicine, New York, New York, USA.
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Nepomnyashchikh TS, Lebedev LR, Ryazankin IA, Pozdnyakov SG, Gileva IP, Shchelkunov SN. Comparison of the Interferon γ-Binding Proteins of the Variola and Monkeypox Viruses. Mol Biol 2005. [DOI: 10.1007/s11008-005-0114-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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36
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Ito T, Ito N, Saathoff M, Bettermann A, Takigawa M, Paus R. Interferon-gamma is a potent inducer of catagen-like changes in cultured human anagen hair follicles. Br J Dermatol 2005; 152:623-31. [PMID: 15840090 DOI: 10.1111/j.1365-2133.2005.06453.x] [Citation(s) in RCA: 94] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND Interferon (IFN)-gamma appears to be an important hair cycle modulator in mice. It is unclear whether it has similar hair growth modulatory functions in human hair follicles. OBJECTIVES To study whether IFN-gamma can be exploited to modulate the growth, pigmentation and/or cycling of organ-cultured human anagen scalp hair follicles, as an in vitro indicator system for how IFN-gamma affects human hair growth in vivo. This was correlated with the hair follicle expression patterns of IFN-gamma receptors alpha and beta. In addition, we wanted to establish a new, simple tool for the rapid experimental induction of catagen in vitro. METHODS Normal human scalp hair follicles in the anagen VI stage of the hair cycle were cultured according to the method of Philpott et al., with or without IFN-gamma (50-1000 IU mL(-1)). Hair shaft elongation and pigmentation changes were measured, complemented by quantitative histomorphometry to assess changes in hair follicle cycling (hair cycle score), proliferation (Ki-67), melanogenesis (Masson-Fontana) and apoptosis (TUNEL). IFN-gamma receptors were also localized by immunofluorescence and EnVision technique. As transforming growth factor (TGF)-beta2 is a recognized key inducer of catagen in human hair follicles, TGF-beta2 expression was investigated by tyramide signal amplification and reverse transcription-polymerase chain reaction in anagen hair follicles treated with vehicle (phosphate-buffered saline) or IFN-gamma. RESULTS IFN-gamma rapidly inhibited hair elongation in cultured human anagen hair follicles and induced morphological signs of catagen transformation after only 4 days of culture, i.e. faster than with other reported catagen-inducers (e.g. TGF-beta2). Proliferation was inhibited, apoptosis was increased and follicular melanogenesis was switched off in hair bulb keratinocytes treated in situ with IFN-gamma. Anagen hair follicles displayed strong IFN-gamma receptor alpha-like immunoreactivity, while the immunoreactivity for IFN-gamma receptor beta in the hair matrix was only weak. TGF-beta2 immunoreactivity and mRNA transcript levels were enhanced in hair follicles treated with IFN-gamma. CONCLUSIONS These data suggest that IFN-gamma is a potent catagen inducer in normal human scalp hair follicles, which express cognate receptors, and show that IFN-gamma administration offers an excellent tool for experimental catagen induction in organ-cultured human hair follicles. This catagen induction probably occurs at least in part via upregulation of the recognized catagen-stimulatory growth factor TGF-beta2.
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Affiliation(s)
- T Ito
- Department of Dermatology, University Hospital Hamburg-Eppendorf, University of Hamburg, Martinistr. 52, D-20246 Hamburg, Germany
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McElwee KJ, Freyschmidt-Paul P, Hoffmann R, Kissling S, Hummel S, Vitacolonna M, Zöller M. Transfer of CD8(+) cells induces localized hair loss whereas CD4(+)/CD25(-) cells promote systemic alopecia areata and CD4(+)/CD25(+) cells blockade disease onset in the C3H/HeJ mouse model. J Invest Dermatol 2005; 124:947-57. [PMID: 15854035 DOI: 10.1111/j.0022-202x.2005.23692.x] [Citation(s) in RCA: 106] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Alopecia areata (AA) is a suspected hair follicle specific autoimmune disease. The potential for cell transfer of AA using the C3H/HeJ mouse model was examined. Cells isolated from lymph nodes and spleens of AA-affected mice using magnetic bead conjugated monoclonal antibodies were subcutaneously injected into normal C3H/HeJ recipients. Within 5 wk, all CD8(+) cell-injected mice exhibited localized hair loss exclusively at the site of injection that persisted until necropsy. In contrast, some CD4(+) and CD4(+)/CD25(-) cell-injected mice developed extensive, systemic AA, and a combination of CD8(+) and CD4(+)/CD25(-) cells injected yielded the highest frequency of systemic AA induction. CD4(+)/CD25(+) cells were less able to transfer the disease phenotype, partially blockaded systemic AA induction by CD4(+)/CD25(-) cells, and prevented CD8(+) cell-induced, injection site-localized hair loss. CD11c(+) and CD19(+) cells failed to promote significant phenotype changes. Increases in co-stimulatory ligands CD40 and CD80, plus increased leukocyte apoptosis resistance with reduced CD95, CD95L, and CD120b expression, were associated with successful alopecia induction. The results suggest that CD8(+) cells may be the primary instigators of the hair loss phenotype. However, systemic disease expression fate is, apparently determined by CD4(+)/CD25(-) cells, while CD4(+)/CD25(+) lymphocytes may play a predominantly regulatory role.
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Affiliation(s)
- Kevin J McElwee
- Division of Dermatology, University of British Columbia, Vancouver, BC, Canada.
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Hequet O, Vocanson M, Saint-Mézard P, Kaiserlian D, Nicolas JF, Bérard F. CD4+ T cells prevent skin autoimmunity during chronic autologous graft-versus-host-disease. Am J Transplant 2004; 4:872-8. [PMID: 15147420 DOI: 10.1111/j.1600-6143.2004.00439.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
CD4 regulatory cells have been postulated to prevent autologous graft-vs.-host disease (GVHD). In order to test this hypothesis, we used BALB/c mice, a strain known to be resistant to autologous GVHD, which had received autologous stem cell transplantation (ASCT) and cyclosporine A (CsA). As expected, ASCT/CsA-treated BALB/c mice did not develop any sign of acute or chronic GVHD. However, depletion of CD4 T cells induced a skin disease with clinical and histological features of alopecia areata (AA), a CD8 T-cell-mediated human autoimmune skin disease. The hair loss in mice developing AA was associated with the infiltration of the skin by activated CD8 T cells. Analysis of the T-cell recovery in ASCT- and ASCT/CsA-treated mice showed that CsA induced an increase in the number of CD4+ 25+ T cells, suggesting that the lack of GVHD in ASCT/CsA treated-mice could be related to the expansion of this CD4 T-cell subset. Collectively these data show that CD4 T cells comprise regulatory cells controlling the onset of autologous GVHD and suggest that the naturally occurring CD4+ 25+ subset may be responsible for this effect.
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Abstract
Over the past decade, basic research has established alopecia areata as a T cell-mediated autoimmune disease and has clarified many of its genetic, cellular, and molecular aspects. Perifollicular and intrafollicular mononuclear cell infiltrates directed at anagen hair bulbs are characteristic and striking histologic features in early alopecia areata. The inflammatory infiltrate is composed predominantly of activated CD4+ and CD8+ T cells, together with macrophages and Langerhans cells. The initiation phase of alopecia areata is mediated by type 1 cytokines, including interleukin-2, interferon-gamma, and tumor necrosis factor-alpha. Like other diseases with a strong autoimmune component, alopecia areata has associated with it specific human leukocyte antigens, which determine susceptibility, severity, chronicity, and resistance. New topical immunomodulating drugs and biologic therapies that have been developed, or that are in development, for the treatment of other immune-mediated inflammatory skin diseases will likely be effective in alopecia areata as well. The present discussion addresses the treatment of alopecia areata within the framework of these new modalities.
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Affiliation(s)
- Vera H Price
- Department of Dermatology, University of California, San Francisco, California 94117, USA.
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40
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Abstract
Neurotrophins comprise a family of structurally and functionally related proteins that are critical for the development and maintenance of cutaneous innervation. They also fulfill multiple non-neurotrophic functions in skin, including regulation of epidermal proliferation and apoptosis, control of hair follicle development and cycling, and melanogenesis. Numerous indications suggest that neurotrophins play an important role in the pathogenesis of a variety of autoimmune diseases. In this review, we focus on the role of neurotrophins in the pathogenesis of alopecia areata, an autoimmune disorder that affects actively growing hair follicles. Recent data suggest that neurotrophins and their receptors are differentially expressed among the subsets of immune cells in alopecia areata-affected skin. Experimental data suggest that neurotrophins may regulate both the cyclic activity of the hair follicle and the functions of immune cells of inflammatory infiltrates. Additional research is required to bridge the gap between our current knowledge of neurotrophin functions in skin affected by alopecia areata and our knowledge of their potential clinical applications. Progress in this area of research will hopefully lead to the development of multiple applications for neurotrophins and their agonists/antagonists in alopecia areata and other hair growth disorders.
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Affiliation(s)
- Vladimir A Botchkarev
- Department of Dermatology, Boston University School of Medicine, Boston, Massachusetts 02112, USA.
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41
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Affiliation(s)
- M Francomano
- Department of Dermatology, University of Modena and Reggio Emilia, Italy
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42
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Abstract
Sulfasalazine is used as a therapy for various autoimmune conditions, including psoriasis; its effectiveness is presumed to be the result of its immunomodulatory effects. We have treated patients with severe alopecia areata with sulfasalazine as part of our dermatology practice and have noticed cosmetically acceptable regrowth in 23% of patients in whom a response could be determined. In view of its good safety profile, sulfasalazine may be considered for systemic treatment of severe alopecia areata.
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Affiliation(s)
- Charles N Ellis
- Department of Dermatology, 1910 A. Alfred Taubman Center, University of Michigan Medical School, Ann Arbor, MI 48109-0314, USA
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