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Anzai A, Abujamra BA, Aoki V, Jozic I. Upregulation of caveolae-associated structural proteins in the hair follicle bulge of lichen planopilaris and frontal fibrosing alopecia. Arch Dermatol Res 2024; 316:330. [PMID: 38837051 DOI: 10.1007/s00403-024-03153-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 05/15/2024] [Accepted: 05/19/2024] [Indexed: 06/06/2024]
Abstract
Lichen planopilaris (LPP) and frontal fibrosing alopecia (FFA) are primary cicatricial alopecia that cause a major impact on quality of life due to irreversible hair loss and symptoms as itching, burning and pain. They are characterized by permanent loss of hair follicle stem cells (HFSCs) by pathomechanisms still poorly understood, resulting in poor efficacy of currently available treatments. Caveolae are flask-shaped lipid rafts invaginated within the plasma membrane of multiple cell types. Although their role in the HF physiology and pathophysiology is relatively unknown, we have previously demonstrated that the primary structural component of caveolae (caveolin-1 or Cav1) is upregulated in FFA. Thus, we propose to investigate the expression and localization of caveolae-associated structural proteins (Cav1, Cav2, and Cavin-1) and HFSCs (identified by K15) in both LPP and FFA. We analyzed 4 patients with LPP biopsied in affected and non-affected (NA) scalp, 4 patients with FFA biopsied in affected scalp and 4 healthy controls. Affected scalp of LPP and FFA demonstrated increased levels of Cav1 and Cavin-1 compared with HC and LPP-NA. Moreover, Cav1, Cav2 and Cavin1 all exhibit high colocalization with K15 and their expression appears to be negatively correlated, supporting the hypothesis that these proteins are important players in LPP/FFA and may serve as therapeutic targets in future treatments.
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Affiliation(s)
- Alessandra Anzai
- Department of Dermatology, Clinical Hospital of the University of Sao Paulo, Sao Paulo, SP, 05403-900, Brazil.
| | - Beatriz Abdo Abujamra
- Dr. Phillip Frost Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL, 33186, USA
| | - Valéria Aoki
- Department of Dermatology, Clinical Hospital of the University of Sao Paulo, Sao Paulo, SP, 05403-900, Brazil
| | - Ivan Jozic
- Dr. Phillip Frost Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL, 33186, USA
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Gonzalez Matheus GA, Khosrotehrani K. Treatment of lichen planopilaris with Janus kinase inhibitors. Australas J Dermatol 2024; 65:381-383. [PMID: 38421900 DOI: 10.1111/ajd.14240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 12/09/2023] [Accepted: 02/16/2024] [Indexed: 03/02/2024]
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Gadre A, Dyson T, Jedrych J, Anhalt G, Byrd AS, Aguh C. Proteomic Profiling of Central Centrifugal Cicatricial Alopecia Reveals Role of Humoral Immune Response Pathway and Metabolic Dysregulation. JID INNOVATIONS 2024; 4:100263. [PMID: 38585195 PMCID: PMC10995914 DOI: 10.1016/j.xjidi.2024.100263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 12/28/2023] [Accepted: 01/03/2024] [Indexed: 04/09/2024] Open
Abstract
Proteomic profiling on other primary cicatricial alopecias, such as frontal fibrosing alopecia and lichen planopilaris, have suggested a T helper 1-mediated inflammatory pathway, but in central centrifugal cicatricial alopecia (CCCA), the protein expression patterns are unknown. In this study, we sought to characterize protein expression patterns in CCCA to identify biomarkers of disease activity that will identify potential therapeutic avenues for treatment. Scalp protein quantification was performed to understand protein expression patterns in affected versus unaffected scalps in CCCA. A total of 5444 proteins were identified, of which 148 proteins were found to be differentially expressed in CCCA-affected scalp, with upregulation of adaptive immune pathways (IGHG3, P = .034; IGHG4, P = .01; IGG1, P = .026) and markers of fibrosis (ITGA1, P = .016; SFRP2, P = .045; TPM2, P = .029; SLMAP, P = .016) and downregulation of metabolic proteins (ALOX15B, P = .003; FADS2, P = .006; ELOVL5, P = .007; FA2H, P = .017; FAR2, P = .011; SC5D, P < .001). Our analysis revealed, to our knowledge, previously unknown humoral immune canonical pathways, notably IgG, implicated in CCCA and additionally confirmed aberrant lipid metabolism pathways implicated in diabetes mellitus, suggesting unique mechanisms of disease in patients with CCCA.
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Affiliation(s)
- Aditi Gadre
- Department of Dermatology, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- School of Medicine, Georgetown University, Washington, District of Columbia, USA
| | - Taylor Dyson
- Department of Dermatology, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Eastern Virginia Medical School, Norfolk, Virginia, USA
| | - Jaroslaw Jedrych
- Department of Dermatology, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Grant Anhalt
- Department of Dermatology, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Angel S. Byrd
- Department of Dermatology, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Department of Dermatology, College of Medicine, Howard University, Washington, District of Columbia, USA
| | - Crystal Aguh
- Department of Dermatology, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
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Lyakhovitsky A, Zilbermintz T, Segal Z, Galili E, Shemer A, Jaworowski B, Baum S, Hermush V, Kaplan B, Barzilai A. Exploring Remission Dynamics and Prognostic Factors in Lichen Planopilaris: a Retrospective Cohort Study. Dermatology 2024:000538355. [PMID: 38574470 DOI: 10.1159/000538355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Accepted: 03/10/2024] [Indexed: 04/06/2024] Open
Abstract
INTRODUCTION Lichen planopilaris (LPP) is a common type of primary cicatricial alopecia. Previous studies focused on the epidemiology, clinical characteristics, and treatment of LPP. A lack of knowledge regarding LPP outcomes and prognostic factors remained. METHODS To delineate the rate and timing of remission in LPP, as well as the prognostic factors for achieving remission, a retrospective cohort study was conducted. The study included 126 patients, from a single tertiary center, diagnosed with LPP between January 2010 and December 2022, who were followed up for a minimum of 6 months. RESULTS There were 89 (70.6%) women and 37 (29.4 %) men included in this study. The mean age of the patients was 47.92±14.2 years. The mean time from disease onset to diagnosis was 33.85 (±30) months, indicating significant diagnostic delays. The mean duration of follow-up was 34.13±22.7 months. Among the cohort, 43 patients achieved complete remission (CR) during the follow-up period, whereas 83 patients did not. Of the 83 patients who did not achieve CR, 35 partially improved and 48 did not improve or worsened. The median time for achieving CR was 46±18.8 months. Milder disease at presentation and comorbid lichen planus were associated with higher CR rates. CONCLUSION This study demonstrates significant diagnostic delays that should be addressed as LPP causes irreversible alopecia, suggests disease severity and comorbid lichen planus as potential prognostic factors. Further, it emphasizes the limited efficacy of current treatments and the need for prolonged treatment in patients with LPP to achieve remission.
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Aboalola D, Aouabdi S, Ramadan M, Alghamdi T, Alsolami M, Malibari D, Alsiary R. An Update on Alopecia and its Association With Thyroid Autoimmune Diseases. TOUCHREVIEWS IN ENDOCRINOLOGY 2023; 19:54-59. [PMID: 38187080 PMCID: PMC10769472 DOI: 10.17925/ee.2023.19.2.10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Accepted: 05/30/2023] [Indexed: 01/09/2024]
Abstract
Alopecia is comorbid with several illnesses, including various autoimmune conditions such as thyroid disease. Leukocyte-mediated inflammation of hair follicles in alopecia was first described over a century ago. However, the high prevalence of the role of thyroid autoimmune disease in the pathogenesis of alopecia has only recently come to light, together with a strong association between the two. Therefore, this review focuses on articles published between 2011 and 2022 on alopecia's association with thyroid autoimmune disease, and the mechanism behind it. In addition, it highlights the link between alopecia and thyroid cancer, as patients with alopecia have increased risk of thyroid cancer. In conclusion, this comprehensive, focused, scoping review will serve as a reference highlighting recent information on alopecia, exploring its association with thyroid autoimmune diseases.
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Affiliation(s)
- Doaa Aboalola
- King Abdullah International Medical Research Center, Jeddah, Western Region, Saudi Arabia
- King Saud bin Abdulaziz University for Health Sciences, Jeddah, Western Region, Saudi Arabia
- Ministry of National Guard Health Affairs, Jeddah, Western Region, Saudi Arabia
| | - Sihem Aouabdi
- King Abdullah International Medical Research Center, Jeddah, Western Region, Saudi Arabia
- King Saud bin Abdulaziz University for Health Sciences, Jeddah, Western Region, Saudi Arabia
- Ministry of National Guard Health Affairs, Jeddah, Western Region, Saudi Arabia
| | - Majed Ramadan
- King Abdullah International Medical Research Center, Jeddah, Western Region, Saudi Arabia
- King Saud bin Abdulaziz University for Health Sciences, Jeddah, Western Region, Saudi Arabia
- Ministry of National Guard Health Affairs, Jeddah, Western Region, Saudi Arabia
| | - Tariq Alghamdi
- King Abdullah International Medical Research Center, Jeddah, Western Region, Saudi Arabia
- King Saud bin Abdulaziz University for Health Sciences, Jeddah, Western Region, Saudi Arabia
- Ministry of National Guard Health Affairs, Jeddah, Western Region, Saudi Arabia
| | - Mona Alsolami
- King Abdullah International Medical Research Center, Jeddah, Western Region, Saudi Arabia
- King Saud bin Abdulaziz University for Health Sciences, Jeddah, Western Region, Saudi Arabia
- Ministry of National Guard Health Affairs, Jeddah, Western Region, Saudi Arabia
| | - Dalal Malibari
- King Abdullah International Medical Research Center, Jeddah, Western Region, Saudi Arabia
- King Saud bin Abdulaziz University for Health Sciences, Jeddah, Western Region, Saudi Arabia
- Ministry of National Guard Health Affairs, Jeddah, Western Region, Saudi Arabia
| | - Rawiah Alsiary
- King Abdullah International Medical Research Center, Jeddah, Western Region, Saudi Arabia
- King Saud bin Abdulaziz University for Health Sciences, Jeddah, Western Region, Saudi Arabia
- Ministry of National Guard Health Affairs, Jeddah, Western Region, Saudi Arabia
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Kurzeja M, Warszawik-Hendzel O, Rakowska A, Graczyk A, Fedorczuk D, Czuwara J, Olszewska M, Rudnicka L. Line-field confocal optical coherence tomography: A new diagnostic method of lichen planopilaris. Skin Res Technol 2023; 29:e13495. [PMID: 37881054 PMCID: PMC10576171 DOI: 10.1111/srt.13495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Revised: 09/24/2023] [Accepted: 09/27/2023] [Indexed: 10/27/2023]
Affiliation(s)
- Marta Kurzeja
- Department of Dermatology, Medical University of Poland, Warsaw, Poland
| | | | - Adriana Rakowska
- Department of Dermatology, Medical University of Poland, Warsaw, Poland
| | - Alina Graczyk
- Department of Dermatology, Medical University of Poland, Warsaw, Poland
| | - Danuta Fedorczuk
- Department of Dermatology, Medical University of Poland, Warsaw, Poland
| | - Joanna Czuwara
- Department of Dermatology, Medical University of Poland, Warsaw, Poland
| | | | - Lidia Rudnicka
- Department of Dermatology, Medical University of Poland, Warsaw, Poland
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Reversible hair loss in a patient with cicatricial alopecia: A case of regrowth associated with pioglitazone use. JAAD Case Rep 2022; 28:21-23. [PMID: 36090197 PMCID: PMC9459670 DOI: 10.1016/j.jdcr.2022.07.038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Watson VE, Faniel ML, Kamili NA, Krueger LD, Zhu C. Immune-mediated alopecias and their mechanobiological aspects. Cells Dev 2022; 170:203793. [PMID: 35649504 PMCID: PMC10681075 DOI: 10.1016/j.cdev.2022.203793] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Accepted: 05/24/2022] [Indexed: 02/06/2023]
Abstract
Alopecia is a non-specific term for hair loss clinically diagnosed by the hair loss pattern and histological analysis of patient scalp biopsies. The immune-mediated alopecia subtypes, including alopecia areata, lichen planopilaris, frontal fibrosing alopecia, and central centrifugal cicatricial alopecia, are common, significant forms of alopecia subtypes. For example, alopecia areata is the most common autoimmune disease with a lifetime incidence of approximately 2% of the world's population. In this perspective, we discuss major results from studies of immune-mediated alopecia subtypes. These studies suggest the key event in disease onset as the collapse in immune privilege, which alters the hair follicle microenvironment, e.g., upregulation of major histocompatibility complex molecules and increase of cytokine production, and results in immune cell infiltration, inflammatory responses, and damage of hair follicles. We note that previous studies have established that the hair follicle has a complex mechanical microenvironment, which may regulate the function of not only tissue cells but also immune cell infiltrates. This suggests a potential for mechanobiology to contribute to alopecia research by adding new methods, new approaches, and new ways of thinking, which is missing in the existing literature. To fill this a gap in the alopecia research space, we develop a mechanobiological hypothesis that alterations in the hair follicle microenvironment, specifically in the mechanically responsive tissues and cells, partially due to loss of immune privilege, may be contributors to disease pathology. We further focus our discussion on the potential for applying mechanoimmunology to the study of T cell infiltrates in the hair follicle, as they are considered primary contributors to alopecia pathology. To establish the connection between the mechanoimmunological hypothesis and immune-mediated alopecia subtypes, we discuss what is known about the role of T cells in immune-mediated alopecia subtypes, using the most extensively studied AA as our model.
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Affiliation(s)
- Valencia E Watson
- Wallace H. Coulter Department of Biomedical Engineering, USA; Bioengineering PhD Program, USA; Parker H. Petit Institute for Bioengineering and Biosciences, Georgia Institute of Technology, Atlanta, GA, USA
| | - Makala L Faniel
- Wallace H. Coulter Department of Biomedical Engineering, USA; Bioengineering PhD Program, USA; Parker H. Petit Institute for Bioengineering and Biosciences, Georgia Institute of Technology, Atlanta, GA, USA
| | | | - Loren D Krueger
- Department of Dermatology, Emory University School of Medicine, Atlanta, GA, USA.
| | - Cheng Zhu
- Wallace H. Coulter Department of Biomedical Engineering, USA; Bioengineering PhD Program, USA; Parker H. Petit Institute for Bioengineering and Biosciences, Georgia Institute of Technology, Atlanta, GA, USA.
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