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Park S, Bell A, Gibson R, Masson R, Daveluy S, Goldberg S, Hsiao J, Porter M, Kirby J, Piguet V. Advances in Hidradenitis Suppurativa Pathogenesis and Therapies from the Symposium on HS Advances 2023. J Invest Dermatol 2024; 144:1681-1684. [PMID: 39034061 DOI: 10.1016/j.jid.2024.02.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Revised: 02/07/2024] [Accepted: 02/10/2024] [Indexed: 07/23/2024]
Affiliation(s)
- Sarah Park
- David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California, USA
| | - Alexis Bell
- Mary Washington Healthcare, Fredericksburg, Virginia, USA
| | - Ruby Gibson
- Department of Dermatology, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA
| | - Rahul Masson
- Keck School of Medicine of USC, University of Southern California, Los Angeles, California, USA
| | - Steven Daveluy
- Department of Dermatology, Wayne State University, Detroit, Michigan, USA
| | - Stephanie Goldberg
- General Surgery and Trauma, Mary Washington Medical Center, Fredericksburg, Virginia, USA
| | - Jennifer Hsiao
- Department of Dermatology, University of Southern California, Los Angeles, California, USA
| | - Martina Porter
- Harvard Medical School, Department of Dermatology, Boston, Massachusetts, USA
| | - Joslyn Kirby
- Department of Dermatology, Penn State Health Milton S. Hershey Medical Center, Hershey, Pennsylvania, USA
| | - Vincent Piguet
- Division of Dermatology, Temerty Faculty of Medicine, University of Toronto, Toronto, Canada; Division of Dermatology, Department of Medicine, Women's College Hospital, Toronto, Canada.
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Maronese CA, Moltrasio C, Genovese G, Marzano AV. Biologics for Hidradenitis suppurativa: evolution of the treatment paradigm. Expert Rev Clin Immunol 2024; 20:525-545. [PMID: 38130204 DOI: 10.1080/1744666x.2023.2298356] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Accepted: 12/19/2023] [Indexed: 12/23/2023]
Abstract
INTRODUCTION Hidradenitis suppurativa (HS) is an autoinflammatory skin disease with a high unmet need for effective medical management. Clinically, it is characterized by inflammatory nodules that may progress into abscesses, draining tunnels and extensive scarring, mainly affecting apocrine gland-bearing areas. AREAS COVERED Treatment options include topical and systemic medications and a variety of surgical procedures. The anti-TNF-α antibody adalimumab and the anti-IL-17 secukinumab are the only two approved biologics for HS, showing moderate efficacy. HS research is a rapidly growing field, with a wide range of agents leveraging distinct mechanisms of action currently under development. Drugs targeting the IL-17 and Janus kinase/signal transducer and activator of transcription (JAK/STAT) pathways are the most advanced in both ongoing and completed Phase 3 studies, promising deeper levels of response. Use of other, off-label biologics is also discussed. EXPERT OPINION A therapeutic algorithm is proposed based on comorbidities and existing evidence. Patient-tailored combinations between biologics and other biologics or small molecules will hopefully allow clinicians to target most events in HS pathophysiology in a complementary way while obtaining a meaningful effect on their devastating manifestations.
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Affiliation(s)
- Carlo Alberto Maronese
- Dermatology Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
- Department of Pathophysiology and Transplantation, Università degli Studi di Milano, Milan, Italy
| | - Chiara Moltrasio
- Dermatology Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Giovanni Genovese
- Dermatology Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Angelo Valerio Marzano
- Dermatology Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
- Department of Pathophysiology and Transplantation, Università degli Studi di Milano, Milan, Italy
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Flora A, Pham J, Jepsen R, Frew JW. The serum proteome of pyoderma gangrenosum is more expansive than that of hidradenitis suppurativa. J Eur Acad Dermatol Venereol 2024; 38:e348-e350. [PMID: 37909252 DOI: 10.1111/jdv.19611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Accepted: 10/25/2023] [Indexed: 11/02/2023]
Affiliation(s)
- Akshay Flora
- Laboratory of Translational Cutaneous Medicine, Ingham Institute for Applied Medical Research, Liverpool, New South Wales, Australia
- Department of Dermatology, Liverpool Hospital, Liverpool, New South Wales, Australia
- University of New South Wales, Sydney, New South Wales, Australia
| | - James Pham
- Laboratory of Translational Cutaneous Medicine, Ingham Institute for Applied Medical Research, Liverpool, New South Wales, Australia
- Department of Dermatology, Liverpool Hospital, Liverpool, New South Wales, Australia
- University of New South Wales, Sydney, New South Wales, Australia
| | - Rebecca Jepsen
- Laboratory of Translational Cutaneous Medicine, Ingham Institute for Applied Medical Research, Liverpool, New South Wales, Australia
- Department of Dermatology, Liverpool Hospital, Liverpool, New South Wales, Australia
- University of New South Wales, Sydney, New South Wales, Australia
| | - John W Frew
- Laboratory of Translational Cutaneous Medicine, Ingham Institute for Applied Medical Research, Liverpool, New South Wales, Australia
- Department of Dermatology, Liverpool Hospital, Liverpool, New South Wales, Australia
- University of New South Wales, Sydney, New South Wales, Australia
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Flora A, Jepsen R, Pham J, Frew JW. Alterations to the Hidradenitis Suppurativa Serum Proteome with Spleen Tyrosine Kinase Antagonism: Proteomic Results from a Phase 2 Clinical Trial. J Invest Dermatol 2024; 144:786-793.e1. [PMID: 37879397 DOI: 10.1016/j.jid.2023.10.005] [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: 08/13/2023] [Revised: 09/24/2023] [Accepted: 10/10/2023] [Indexed: 10/27/2023]
Abstract
Hidradenitis suppurativa is a disease in great need of novel therapies. Given the heterogeneous nature of the disease and the variable response to therapies, biomarkers are essential to predict response to therapies and increase our understanding of disease pathogenesis. Our recent phase 2 clinical trial of spleen tyrosine kinase antagonism using fostamatinib in hidradenitis suppurativa demonstrated a 75% clinical response, with the greatest benefit in individuals with elevated serum inflammation and IgG. In this study, we present results of an in-depth serum proteomic analysis in this patient cohort identifying downregulation of IL-12B as well as B-cell-associated proteins CCL19 and CCL20 and IFN-γ-mediated proteins CXCL10 and CX3CL1. Clinical responders demonstrated greater reduction in serum IL-17A, IL-6, IL-8, and CX3CL1 compared with clinical nonresponders. Baseline levels of CCL28 were associated with clinical response to fostamatinib therapy at week 12. Overall, this suggests that fostamatinib, by targeting B-cell receptor and Fc receptor activity in B cells, monocytes, and macrophages, has a significant molecular impact on the inflammatory serum proteome of hidradenitis suppurativa. In addition, potential therapeutic biomarkers may aid in patient selection for targeted therapy.
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Affiliation(s)
- Akshay Flora
- Laboratory of Translational Cutaneous Medicine, Ingham Institute for Applied Medical Research, Liverpool, Australia; Department of Dermatology, Liverpool Hospital, Liverpool, Australia; School of Clinical Medicine, University of New South Wales Sidney, Kensington, Australia
| | - Rebecca Jepsen
- Laboratory of Translational Cutaneous Medicine, Ingham Institute for Applied Medical Research, Liverpool, Australia; Department of Dermatology, Liverpool Hospital, Liverpool, Australia
| | - James Pham
- Laboratory of Translational Cutaneous Medicine, Ingham Institute for Applied Medical Research, Liverpool, Australia; Department of Dermatology, Liverpool Hospital, Liverpool, Australia; School of Clinical Medicine, University of New South Wales Sidney, Kensington, Australia
| | - John W Frew
- Laboratory of Translational Cutaneous Medicine, Ingham Institute for Applied Medical Research, Liverpool, Australia; Department of Dermatology, Liverpool Hospital, Liverpool, Australia; School of Clinical Medicine, University of New South Wales Sidney, Kensington, Australia.
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Heidari A, Ghane Y, Heidari N, Sadeghi S, Goodarzi A. A systematic review of Janus kinase inhibitors and spleen tyrosine kinase inhibitors for Hidradenitis suppurativa treatment. Int Immunopharmacol 2024; 127:111435. [PMID: 38150881 DOI: 10.1016/j.intimp.2023.111435] [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: 10/03/2023] [Revised: 12/19/2023] [Accepted: 12/20/2023] [Indexed: 12/29/2023]
Abstract
BACKGROUNDS AND AIMS Hidradenitis suppurativa (HS) is a challenging skin disease with an underlying inflammatory process. Substantial progress has been made in our understanding of HS over the last few years, with the advancement of novel treatment approaches. The current systematic review aims to evaluate the safety and efficacy of Janus kinase (JAK) inhibitors and spleen tyrosine kinase (Syk) inhibitors in treating HS. METHOD A thorough systematic search was performed on PubMed/Medline, Web of Science, and Ovid Embase databases up to September 23th, 2023. Clinical studies published in English were included. RESULTS Our search yielded ten articles with a total of 165 patients treated with four types of JAK inhibitors (upadacitinib, povorcitinib, tofacitinib, and baricitinib) and one Syk inhibitor (fostamatinib). Upadacitinib, povorcitinib, and tofacitinib improved clinical outcomes, with a significant reduction in hidradenitis suppurativa clinical response (HiSCR) and abscess and inflammatory nodule count (AN count) during the treatment period. Also, these drugs are well tolerated in most HS patients with minimal adverse events (AEs). Moreover, baricitinib depicted an amelioration in signs and symptoms of HS in one case report. Also, fostamatinib exhibited favorable tolerability throughout a 12-week in moderate-to-severe HS patients. The remarkable clinical improvement, as assessed through HiSCR and hidradenitis suppurativa severity (IHS4), corresponded closely with serological indicators of inflammation following fostamatinib administration was achieved. CONCLUSION JAK and Syk inhibitors are potentially efficacious in managing moderate-to-severe HS since the proinflammatory cytokines are mediated by JAK and Syk signaling pathways. However, further research with a more rigorous examination is mandatory to evaluate such medication's long-term safety and efficacy.
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Affiliation(s)
- Amirhossein Heidari
- Faculty of Medicine, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran.
| | - Yekta Ghane
- School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
| | - Nazila Heidari
- School of Medicine, Iran University of Medical Sciences, Tehran, Iran.
| | - Sara Sadeghi
- Department of Dermatology, Rasool Akram Medical Complex Clinical Research Development Center (RCRDC), School of Medicine, Iran University of Medical Sciences, Tehran, Iran; Department of Medicine, New York Health System, South Brooklyn Hospital, Brooklyn, NY, USA.
| | - Azadeh Goodarzi
- Department of Dermatology, Rasool Akram Medical Complex Clinical Research Development Center (RCRDC), School of Medicine, Iran University of Medical Sciences, Tehran, Iran.
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Krueger JG, Frew J, Jemec GBE, Kimball AB, Kirby B, Bechara FG, Navrazhina K, Prens E, Reich K, Cullen E, Wolk K. Hidradenitis suppurativa: new insights into disease mechanisms and an evolving treatment landscape. Br J Dermatol 2024; 190:149-162. [PMID: 37715694 DOI: 10.1093/bjd/ljad345] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 09/08/2023] [Accepted: 09/11/2023] [Indexed: 09/18/2023]
Abstract
Hidradenitis suppurativa (HS), also known as acne inversa, is a chronic disabling and debilitating inflammatory disease with a high unmet medical need. The prevalence of HS reported in most studies is 1-2%, although it is likely to be under-reported and estimates vary globally owing to variance in data collection methods, ethnicity, geographical location and under-diagnosis. HS is characterized by persistent, painful cutaneous nodules, abscesses and draining tunnels commonly affecting the axillary, anogenital, inguinal and perianal/gluteal areas. Over time, chronic uncontrolled inflammation results in irreversible tissue destruction and scarring. Although the pathophysiology of HS has not been fully elucidated, the tumour necrosis factor (TNF)-α and interleukin (IL)-17 pathways have an important role, involving multiple cytokines. Currently, treatment options include topical medications; systemic therapies, including repeated and/or rotational courses of systemic antibiotics, retinoids and hormonal therapies; and various surgical procedures. The anti-TNF-α antibody adalimumab is currently the only biologic approved by both the US Food and Drug Administration and the European Medicines Agency for HS; however, its efficacy varies, with a clinical response reported in approximately 50% of patients in phase III trials. HS is a rapidly evolving field of discovery, with a diverse range of agents with distinct mechanisms of action currently being explored in clinical trials. Several other promising therapeutic targets have recently emerged, and agents targeting the IL-17 and Janus kinase (JAK)/signal transducer and activator of transcription (STAT) pathways are the most advanced in ongoing or completed phase III clinical trials. Alongside limited therapeutic options, significant challenges remain in terms of diagnosis and disease management, with a need for better treatment outcomes. Other unmet needs include significant diagnostic delays, thus missing the therapeutic 'window of opportunity'; the lack of standardized outcome measures in clinical trials; and the lack of established, well-defined disease phenotypes and biomarkers.
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Affiliation(s)
- James G Krueger
- Laboratory of Investigative Dermatology, The Rockefeller University, New York, NY, USA
| | - John Frew
- Laboratory of Translational Cutaneous Medicine, Ingham Institute for Applied Medical Research, Sydney, Australia
- Department of Dermatology, Liverpool Hospital, Sydney, Australia
- University of New South Wales, Sydney, Australia
| | - Gregor B E Jemec
- Department of Dermatology, Zealand University Hospital, Roskilde, Denmark
- Health Sciences Faculty, University of Copenhagen, Copenhagen, Denmark
| | - Alexa B Kimball
- Department of Dermatology, Harvard Medical School, Boston, MA, USA
- Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Brian Kirby
- Charles Department of Dermatology, St Vincent's University Hospital, Dublin, Ireland
- Charles Institute of Dermatology, University College Dublin, Dublin, Ireland
| | - Falk G Bechara
- Department of Dermatology, Venereology and Allergology, Ruhr-University Bochum, Bochum, Germany
| | - Kristina Navrazhina
- Laboratory of Investigative Dermatology, The Rockefeller University, New York, NY, USA
- Weill Cornell/Rockefeller/Sloan Kettering Tri-Institutional MD-PhD Program, New York, NY, USA
| | - Errol Prens
- Department of Dermatology, Erasmus University Medical Center, Rotterdam, TheNetherlands
| | - Kristian Reich
- Translational Research in Inflammatory Skin Diseases, Institute for Health Care Research in Dermatology and Nursing, University Medical Center Hamburg-Eppendorf, Germany
- MoonLake Immunotherapeutics AG, Zug, Switzerland
| | - Eva Cullen
- MoonLake Immunotherapeutics AG, Zug, Switzerland
| | - Kerstin Wolk
- Psoriasis Research and Treatment Centre, Department of Dermatology, Venereology and Allergology and Institute of Medical Immunology, Charité - Universitätsmedizin Berlin, Berlin, Germany
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Flora A, Jepsen R, Kozera EK, Woods JA, Cains GD, Radzieta M, Jensen SO, Malone M, Frew JW. Human dermal fibroblast subpopulations and epithelial mesenchymal transition signals in hidradenitis suppurativa tunnels are normalized by spleen tyrosine kinase antagonism in vivo. PLoS One 2023; 18:e0282763. [PMID: 37922232 PMCID: PMC10624284 DOI: 10.1371/journal.pone.0282763] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Accepted: 05/19/2023] [Indexed: 11/05/2023] Open
Abstract
Hidradenitis Suppurativa is a chronic inflammatory disease of which the pathogenesis is incompletely understood. Dermal fibroblasts have been previously identified as a major source of inflammatory cytokines, however information pertaining to the characteristics of subpopulations of fibroblasts in HS remains unexplored. Using in silico-deconvolution of whole-tissue RNAseq, Nanostring gene expression panels and confirmatory immunohistochemistry we identified fibroblast subpopulations in HS tissue and their relationship to disease severity and lesion morphology. Gene signatures of SFRP2+ fibroblast subsets were increased in lesional tissue, with gene signatures of SFRP1+ fibroblast subsets decreased. SFRP2+ and CXCL12+ fibroblast numbers, measured by IHC, were increased in HS tissue, with greater numbers associated with epithelialized tunnels and Hurley Stage 3 disease. Pro-inflammatory CXCL12+ fibroblasts were also increased, with reductions in SFRP1+ fibroblasts compared to healthy controls. Evidence of Epithelial Mesenchymal Transition was seen via altered gene expression of SNAI2 and altered protein expression of ZEB1, TWIST1, Snail/Slug, E-Cadherin and N-Cadherin in HS lesional tissue. The greatest dysregulation of EMT associated proteins was seen in biopsies containing epithelialized tunnels. The use of the oral Spleen tyrosine Kinase inhibitor Fostamatinib significantly reduced expression of genes associated with chronic inflammation, fibroblast proliferation and migration suggesting a potential role for targeting fibroblast activity in HS.
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Affiliation(s)
- Akshay Flora
- Laboratory of Translational Cutaneous Medicine, Ingham Institute for Applied Medical Research, Sydney, Australia
- University of New South Wales, Sydney, Australia
- Department of Dermatology, Liverpool Hospital, Sydney, Australia
| | | | - Emily K. Kozera
- University of New South Wales, Sydney, Australia
- Department of Dermatology, Liverpool Hospital, Sydney, Australia
| | - Jane A. Woods
- University of New South Wales, Sydney, Australia
- Department of Dermatology, Liverpool Hospital, Sydney, Australia
| | - Geoffrey D. Cains
- University of New South Wales, Sydney, Australia
- Department of Dermatology, Liverpool Hospital, Sydney, Australia
| | - Michael Radzieta
- South West Sydney Limb Preservation and Wound Research, Ingham Institute for Applied Medical Research, Liverpool, Australia
- School of Medicine, Western Sydney University, Sydney, Australia
| | - Slade O. Jensen
- School of Medicine, Western Sydney University, Sydney, Australia
| | - Matthew Malone
- South West Sydney Limb Preservation and Wound Research, Ingham Institute for Applied Medical Research, Liverpool, Australia
- School of Medicine, Western Sydney University, Sydney, Australia
| | - John W. Frew
- Laboratory of Translational Cutaneous Medicine, Ingham Institute for Applied Medical Research, Sydney, Australia
- University of New South Wales, Sydney, Australia
- Department of Dermatology, Liverpool Hospital, Sydney, Australia
- Holdsworth House Medical Practice, Sydney, Australia
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Nowak-Liduk A, Kitala D, Ochała-Gierek G, Łabuś W, Bergler-Czop B, Pietrauszka K, Niemiec P, Szyluk K, Gierek M. Hidradenitis Suppurativa: An Interdisciplinary Problem in Dermatology, Gynecology, and Surgery-Pathogenesis, Comorbidities, and Current Treatments. Life (Basel) 2023; 13:1895. [PMID: 37763299 PMCID: PMC10532726 DOI: 10.3390/life13091895] [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: 07/19/2023] [Revised: 08/29/2023] [Accepted: 09/07/2023] [Indexed: 09/29/2023] Open
Abstract
Hidradenitis suppurativa (HS), also known as acne inversa, is a chronic inflammatory disease that manifests as painful nodules, abscesses, draining dermal tunnels, and scarring in intertriginous areas such as the axillae, groin, and breasts. The nature of the disease and its chronicity have a destructive impact on mental health and quality of life. HS has an estimated global prevalence of 0.00033-4.1% and it disproportionately affects females compared to males. HS involving the female anogenital regions is reported rarely in the gynecological literature, and it can often be mistaken for other vulvar diseases. The distinct phenotypes and HS rarity cause delayed diagnosis and the implementation of effective treatment. Acne inversa is associated with several comorbidities, including metabolic disease, diabetes mellitus, inflammatory bowel diseases, and spondyloarthropathies. Although HS etiology and pathogenesis remain unclear, studies have shown that lifestyle, immunological processes, genetics, and hormonal predispositions may promote follicular hyperkeratosis, dilatation, and rupture, leading to the development of chronic tissue inflammation. This article provides updated information on HS pathogenesis, comorbidities, and treatment methods. Furthermore, we share our experience in the surgical treatment of the disease, which often proves most effective, and highlight that an interdisciplinary management approach ensures optimal outcomes.
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Affiliation(s)
- Agnieszka Nowak-Liduk
- Department of Perinatology, Gynaecology and Obstetrics, General Hospital in Ruda Śląska, Wincentego Lipa Street 2, 41-703 Ruda Śląska, Poland;
| | - Diana Kitala
- Dr. Stanislaw Sakiel Centre for Burns Treatment, Siemianowice Ślaskie, Jana Pawła II Street 2, 43-100 Siemianowice Śląskie, Poland; (D.K.); (W.Ł.)
| | - Gabriela Ochała-Gierek
- Department of Dermatology and Venerology, City Hospital in Sosnowiec, Zegadlowicza Street 3, 41-200 Sosnowiec, Poland;
| | - Wojciech Łabuś
- Dr. Stanislaw Sakiel Centre for Burns Treatment, Siemianowice Ślaskie, Jana Pawła II Street 2, 43-100 Siemianowice Śląskie, Poland; (D.K.); (W.Ł.)
| | - Beata Bergler-Czop
- Department of Dermatology, Medical University of Silesia in Katowice, Francuska Street 20-24, 40-027 Katowice, Poland; (B.B.-C.); (K.P.)
| | - Kornelia Pietrauszka
- Department of Dermatology, Medical University of Silesia in Katowice, Francuska Street 20-24, 40-027 Katowice, Poland; (B.B.-C.); (K.P.)
| | - Paweł Niemiec
- Department of Biochemistry and Medical Genetics, School of Health Sciences in Katowice, Medical University of Silesia in Katowice, Medykow Street 18, 40-752 Katowice, Poland;
| | - Karol Szyluk
- Department of Physiotherapy, Faculty of Health Sciences in Katowice, Medical University of Silesia in Katowice, 40-752 Katowice, Poland;
- District Hospital of Orthopaedics and Trauma Surgery, Bytomska 62 Street, 41-940 Piekary Slaskie, Poland
| | - Marcin Gierek
- Dr. Stanislaw Sakiel Centre for Burns Treatment, Siemianowice Ślaskie, Jana Pawła II Street 2, 43-100 Siemianowice Śląskie, Poland; (D.K.); (W.Ł.)
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