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Charras A, Hofmann SR, Cox A, Schulze F, Russ S, Northey S, Liu X, Fang Y, Haldenby S, Hartmann H, Bassuk AG, Carvalho A, Sposito F, Grinstein L, Rösen-Wolff A, Meyer-Bahlburg A, Beresford MW, Lainka E, Foell D, Wittkowski H, Girschick HJ, Morbach H, Uebe S, Hüffmeier U, Ferguson PJ, Hedrich CM. P2RX7 gene variants associate with altered inflammasome assembly and reduced pyroptosis in chronic nonbacterial osteomyelitis (CNO). J Autoimmun 2024; 144:103183. [PMID: 38401466 DOI: 10.1016/j.jaut.2024.103183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 02/01/2024] [Accepted: 02/13/2024] [Indexed: 02/26/2024]
Abstract
Chronic nonbacterial osteomyelitis (CNO), an autoinflammatory bone disease primarily affecting children, can cause pain, hyperostosis and fractures, affecting quality-of-life and psychomotor development. This study investigated CNO-associated variants in P2RX7, encoding for the ATP-dependent trans-membrane K+ channel P2X7, and their effects on NLRP3 inflammasome assembly. Whole exome sequencing in two related transgenerational CNO patients, and target sequencing of P2RX7 in a large CNO cohort (N = 190) were conducted. Results were compared with publicly available datasets and regional controls (N = 1873). Findings were integrated with demographic and clinical data. Patient-derived monocytes and genetically modified THP-1 cells were used to investigate potassium flux, inflammasome assembly, pyroptosis, and cytokine release. Rare presumably damaging P2RX7 variants were identified in two related CNO patients. Targeted P2RX7 sequencing identified 62 CNO patients with rare variants (32.4%), 11 of which (5.8%) carried presumably damaging variants (MAF <1%, SIFT "deleterious", Polyphen "probably damaging", CADD >20). This compared to 83 of 1873 controls (4.4%), 36 with rare and presumably damaging variants (1.9%). Across the CNO cohort, rare variants unique to one (Median: 42 versus 3.7) or more (≤11 patients) participants were over-represented when compared to 190 randomly selected controls. Patients with rare damaging variants more frequently experienced gastrointestinal symptoms and lymphadenopathy while having less spinal, joint and skin involvement (psoriasis). Monocyte-derived macrophages from patients, and genetically modified THP-1-derived macrophages reconstituted with CNO-associated P2RX7 variants exhibited altered potassium flux, inflammasome assembly, IL-1β and IL-18 release, and pyroptosis. Damaging P2RX7 variants occur in a small subset of CNO patients, and rare P2RX7 variants may represent a CNO risk factor. Observations argue for inflammasome inhibition and/or cytokine blockade and may allow future patient stratification and individualized care.
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Affiliation(s)
- Amandine Charras
- Department of Women's and Children's Health, Institute of Life Course and Medical Sciences, University of Liverpool, UK
| | - Sigrun R Hofmann
- Department of Pediatrics, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Germany
| | - Allison Cox
- Stead Family Department of Pediatrics, University of Iowa Carver College of Medicine, Iowa City, USA
| | - Felix Schulze
- Department of Pediatrics, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Germany
| | - Susanne Russ
- Department of Pediatrics, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Germany
| | - Sarah Northey
- Department of Women's and Children's Health, Institute of Life Course and Medical Sciences, University of Liverpool, UK
| | - Xuan Liu
- Centre of Genome Research, Institute of Infection, Veterinary & Ecological Sciences, University of Liverpool, UK
| | - Yongxiang Fang
- Centre of Genome Research, Institute of Infection, Veterinary & Ecological Sciences, University of Liverpool, UK
| | - Sam Haldenby
- Centre of Genome Research, Institute of Infection, Veterinary & Ecological Sciences, University of Liverpool, UK
| | - Hella Hartmann
- Light Microscopy Facility, Centre for Regenerative Therapies, Technische Universität Dresden, Germany
| | - Alexander G Bassuk
- Stead Family Department of Pediatrics, University of Iowa Carver College of Medicine, Iowa City, USA
| | - Ana Carvalho
- Department of Women's and Children's Health, Institute of Life Course and Medical Sciences, University of Liverpool, UK
| | - Francesca Sposito
- Department of Women's and Children's Health, Institute of Life Course and Medical Sciences, University of Liverpool, UK
| | - Lev Grinstein
- Department of Pediatrics, University Medical Centre Hamburg-Eppendorf, Hamburg, Germany
| | - Angela Rösen-Wolff
- Department of Pediatrics, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Germany
| | - Almut Meyer-Bahlburg
- Pediatric Rheumatology and Immunology, Department of Pediatrics, University Medicine Greifswald, Greifswald, Germany
| | - Michael W Beresford
- Department of Women's and Children's Health, Institute of Life Course and Medical Sciences, University of Liverpool, UK; Department of Rheumatology, Alder Hey Children's NHS Foundation Trust, Liverpool, UK
| | - Elke Lainka
- Department of Pediatrics II, University Hospital Essen, University of Duisburg-Essen, Essen, Germany on behalf of the German Autoinflammatory Disease Network (AID Net), Germany
| | - Dirk Foell
- Department for Pediatric Rheumatology & Immunology, University Hospital Münster, Germany on behalf of the German Autoinflammatory Disease Network (AID Net), Germany
| | - Helmut Wittkowski
- Department for Pediatric Rheumatology & Immunology, University Hospital Münster, Germany on behalf of the German Autoinflammatory Disease Network (AID Net), Germany
| | | | - Henner Morbach
- Department of Pediatrics, University Hospital Würzburg, Germany
| | - Steffen Uebe
- Institute of Human Genetics, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Ulrike Hüffmeier
- Institute of Human Genetics, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Polly J Ferguson
- Stead Family Department of Pediatrics, University of Iowa Carver College of Medicine, Iowa City, USA
| | - Christian M Hedrich
- Department of Women's and Children's Health, Institute of Life Course and Medical Sciences, University of Liverpool, UK; Department of Rheumatology, Alder Hey Children's NHS Foundation Trust, Liverpool, UK.
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Colina M, Khodeir M. Antibiotics in SAPHO syndrome: Comment on the article by Terui et al. J Dermatol 2024; 51:e25. [PMID: 37641478 DOI: 10.1111/1346-8138.16937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 08/08/2023] [Accepted: 08/10/2023] [Indexed: 08/31/2023]
Affiliation(s)
- Matteo Colina
- Rheumatology Service, Section of Internal Medicine, Department of Medicine and Oncology, Ospedale "Santa Maria della Scaletta", Bologna, Italy
- Department of Biomedical and Neuromotor Sciences, Alma Mater Studiorum, University of Bologna, Bologna, Italy
| | - Micheline Khodeir
- Hospital Pharmacy. Ospedale "Santa Maria della Scaletta", Bologna, Italy
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Khodeir M, Poerio A, Colina M. 68Ga-FAPI-04 PET/CT in Synovitis, Acne, Pustulosis, Hyperostosis, and Osteitis Syndrome. Clin Nucl Med 2023:00003072-990000000-00849. [PMID: 38049977 DOI: 10.1097/rlu.0000000000005005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/06/2023]
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Singhal S, Landes C, Shukla R, McCann LJ, Hedrich CM. Classification and management strategies for paediatric chronic nonbacterial osteomyelitis and chronic recurrent multifocal osteomyelitis. Expert Rev Clin Immunol 2023; 19:1101-1116. [PMID: 37224535 DOI: 10.1080/1744666x.2023.2218088] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 05/04/2023] [Accepted: 05/22/2023] [Indexed: 05/26/2023]
Abstract
INTRODUCTION Chronic non-bacterial osteomyelitis (CNO) is an autoinflammatory bone disease that most commonly affects children and adolescents causing significant pain and damage to bones. The absence of diagnostic criteria and biomarkers, an incomplete understanding of the molecular pathophysiology, and lack of evidence from randomized and controlled trials make the diagnosis and care challenging. AREAS COVERED This review provides an overview of the clinical and epidemiological features of CNO and displays diagnostic challenges and how they can be addressed following strategies used internationally and by the authors. It summarizes the molecular pathophysiology, including pathological activation of the NLRP3 inflammasome and IL-1 secretion, and how these observations can inform future treatment strategies. Finally, it provides a summary of ongoing initiatives aiming at classification criteria (ACR/EULAR) and outcome measures (OMERACT) that will enable the generation of evidence through clinical trials. EXPERT OPINION Scientific efforts have linked molecular mechanisms to cytokine dysregulation in CNO, thereby delivering arguments for cytokine blocking strategies. Recent and ongoing collaborative international efforts are providing the basis to move toward clinical trials and target directed treatments for CNO that find approval by regulatory agencies.
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Affiliation(s)
- Shabnam Singhal
- Department of Paediatric Rheumatology, Alder Hey Children's NHS Foundation Trust Hospital, Liverpool, UK
- Department of Women's and Children's Health, Institute of Life Course and Medical Sciences, Faculty of Health and Life Sciences, University of Liverpool, Liverpool, UK
| | - Caren Landes
- Department of Paediatric Rheumatology, Alder Hey Children's NHS Foundation Trust Hospital, Liverpool, UK
- Department of Paediatric Radiology, Alder Hey Children's NHS Foundation Trust Hospital, Liverpool, UK
| | - Rajeev Shukla
- Department of Paediatric Histopathology, Alder Hey Children's NHS Foundation Trust Hospital, Liverpool, UK
| | - Liza J McCann
- Department of Paediatric Rheumatology, Alder Hey Children's NHS Foundation Trust Hospital, Liverpool, UK
- Department of Women's and Children's Health, Institute of Life Course and Medical Sciences, Faculty of Health and Life Sciences, University of Liverpool, Liverpool, UK
| | - Christian M Hedrich
- Department of Paediatric Rheumatology, Alder Hey Children's NHS Foundation Trust Hospital, Liverpool, UK
- Department of Women's and Children's Health, Institute of Life Course and Medical Sciences, Faculty of Health and Life Sciences, University of Liverpool, Liverpool, UK
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Dermatologic Manifestations of Noninflammasome-Mediated Autoinflammatory Diseases. JID INNOVATIONS 2023; 3:100176. [PMID: 36876221 PMCID: PMC9982332 DOI: 10.1016/j.xjidi.2022.100176] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 11/14/2022] [Accepted: 11/21/2022] [Indexed: 12/23/2022] Open
Abstract
Autoinflammatory diseases (AIDs) arise from disturbances that alter interactions of immune cells and tissues. They give rise to prominent (auto)inflammation in the absence of aberrant autoantibodies and/or autoreactive T cells. AIDs that are predominantly caused by changes in the inflammasome pathways, such as the NLRP3- or pyrin-associated inflammasome, have gained substantial attention over the last years. However, AIDs resulting primarily from other changes in the defense system of the innate immune system are less well-studied. These noninflammasome-mediated AIDs relate to, for example, disturbance in the TNF or IFN signaling pathways or aberrations in genes affecting the IL-1RA. The spectrum of clinical signs and symptoms of these conditions is vast. Thus, recognizing early cutaneous signs constitutes an important step in differential diagnoses for dermatologists and other physicians. This review provides an overview of the pathogenesis, clinical presentation, and available treatment options highlighting dermatologic aspects of noninflammasome-mediated AIDs.
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Key Words
- AID, autoinflammatory disease
- ANCA, antineutrophil cytoplasmic antibody
- AOSD, adult-onset Still disease
- BASDAI, Bath Ankylosing Spondylitis Activity Index
- CANDLE, chronic atypical neutrophilic dermatosis with lipodystrophy and elevated temperature
- CAPS, cryopyrin-associated periodic syndrome
- CRD, cysteine-rich domain
- DIRA, deficiency of IL-1RA
- DITRA, deficiency of IL-36RA
- ER, endoplasmic reticulum
- ESR, erythrocyte sedimentation rate
- FMF, familial Mediterranean fever
- M-CSF, macrophage colony-stimulating factor
- MAS, macrophage activation syndrome
- NET, neutrophil extracellular trap
- NOS, nitrous oxide
- NSAID, nonsteroidal anti-inflammatory drug
- NUD, neutrophilic urticarial dermatosis
- PFAPA, periodic fever, aphthous stomatitis, pharyngitis, and adenitis
- PKR, protein kinase R
- PRAAS, proteosome-associated autoinflammatory disease
- SAPHO, synovitis, acne, pustulosis, hyperostosis, osteitis syndrome
- SAVI, STING-associated vasculopathy with onset in infancy
- STAT, signal transducer and activator of transcription
- SchS, Schnitzler syndrome
- TNFR, TNF receptor
- TRAPS, TNF receptor‒associated autoinflammatory disease
- Th17, T helper 17
- VAS, Visual Analog Scale
- sTNFR, soluble TNF receptor
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SAPHO Syndrome Complicated by Lesions of the Central Nervous System Successfully Treated with Brodalumab. Case Rep Rheumatol 2023; 2023:6005531. [PMID: 36816450 PMCID: PMC9935794 DOI: 10.1155/2023/6005531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Revised: 01/12/2023] [Accepted: 01/16/2023] [Indexed: 02/11/2023] Open
Abstract
Synovitis-acne-pustulosis-hyperostosis-osteitis (SAPHO) syndrome is a rare disease with an unknown entity that affects the skin and the peripheral and/or axial joints. Here, we report on a patient with SAPHO syndrome complicated by lesions of the central nervous system who was successfully treated with brodalumab, an IL-17 receptor blocker. He had been suffering from arthralgia in the wrists and knees as well as axial symptoms such as back pain and assimilation of cervical vertebrae. He had been treated with corticosteroid, salazosulfapyridine, methotrexate, and bisphosphonate; however, his peripheral and axial articular manifestation were intractable. Recently, biologics predominantly targeting TNF-α is employed for difficult-to-treat SAPHO cases; however, he had been complicated with the lesions of the central nervous system resembling multiple sclerosis (MS), an inflammatory demyelinating disorder in the central nervous system, for which application of TNF-α inhibitor is contraindicated. Alternatively, brodalumab was administered , which promptly ameliorated the articular manifestations without aggravating the lesions of the central nervous system. We propose that this type of IL-17 blockade could be an alternative therapy for DMARDs-resistant SAPHO syndrome.
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Adam Z, Šedivá A, Zeman D, Fojtík Z, Petrášová H, Diatková J, Tomíška M, Král Z, Treglerová J, Peřina V, Kamaradová K, Adamová Z, Pour L. Successful treatment of SAPHO syndrome (chronic nonbacterial osteomyelitis and acne) with anakinra and denosumab. Case report and review of therapy. VNITRNI LEKARSTVI 2023; 69:4-14. [PMID: 37827817 DOI: 10.36290/vnl.2023.065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/14/2023]
Abstract
SAPHO is an acronym derived from capital letters of Synovitis, Acne, Pustulosis, Hyperostosis, and Osteitis (SAPHO). SAPHO syndrome is an umbrella term covering a constellation of bone lesions and skin manifestations. A 40-year-old male complained about his jaw and back pain, swelling of multiple joints and weight loss accompanied by physical deterioration and acne type skin lesions. Laboratory tests revealed abnormal elevation of inflammatory markers. Imaging studies illustrated multiple osteolytic bone lesions and paraosseal infiltrates. According to the set of criteria diagnosis of SAPHO syndrome was stated. The patient was treated with glucocorticoids and non-steroidal anti-inflammatory drugs (NSAIDs), but only high dose dexamethasone and prednisone were effective. Daily subcutaneous administration of anakinra at the dose of 100 mg was initiated due to limited response to more classical therapies. Because of planned mandibular osteosynthesis initiation of denosumab was preferred before bisphosphonates. Therapeutic response was confirmed by FDG-PET/MR after 5 months of anakinra and denosumab therapy, showing decreased accumulation of FDG in periosteal and paraosseal infiltrates. Inflammatory markers significantly decreased, bone pain deferred but skin manifestation receded only partially. Therefore the response was evaluated as partial remission.
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Efthimiou P, Petryna O, Nakasato P, Kontzias A. New insights on multigenic autoinflammatory diseases. Ther Adv Musculoskelet Dis 2022; 14:1759720X221117880. [PMID: 36081748 PMCID: PMC9445512 DOI: 10.1177/1759720x221117880] [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: 12/22/2021] [Accepted: 07/14/2022] [Indexed: 11/16/2022] Open
Abstract
Autoinflammatory diseases are disorders of the innate immune system, which can be either monogenic due to a specific genetic mutation or complex multigenic due to the involvement of multiple genes. The aim of this review is to explore and summarize the recent advances in pathogenesis, diagnosis, and management of genetically complex autoinflammatory diseases, such as Schnitzler's syndrome; adult-onset Still's disease; synovitis, acne, pustulosis, hyperostosis, osteitis syndrome/chronic recurrent multifocal osteomyelitis/chronic non-bacterial osteomyelitis; Adamantiades-Behçet's disease; Yao syndrome; and periodic fever with aphthous stomatitis, pharyngitis, and adenitis syndrome. The PubMed database was screened for relevant articles using free text words and specific search strings. The search was limited to English-language articles, reporting the results of studies in humans, published through March 2021. Evidence from literature suggest that these rare multigenic autoinflammatory diseases can present with different clinical features and the diagnosis of these diseases can be challenging due to a combination of nonspecific manifestations that can be seen in a variety of other conditions. Diagnostic delays and disease complications may occur due to low disease awareness and the lack of pathognomonic markers. The pathogeneses of these diseases are complex and in some cases precise pathogenesis is not clearly understood. Conventional treatments are commonly used for the management of these conditions, but biologics have shown promising results. Biologics targeting proinflammatory cytokines including IL-1, IL-6, TNF-α, IL-17A and IL-18 have been shown to ameliorate signs and symptoms of different multigenic autoinflammatory diseases.
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Affiliation(s)
- Petros Efthimiou
- New York Rheumatology Care, Ross University School of Medicine, New York, USA
| | - Olga Petryna
- NYU Grossman School of Medicine, New York, NY, USA
| | | | - Apostolos Kontzias
- Department of Rheumatology, Stony Brook University School of Medicine, Stony Brook, NY, USA
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Acierno S, Angrisani F, Marino A, Caporali RF, Cimaz R, Giani T. Canakinumab treatment in a young girl with refractory chronic recurrent multifocal osteomyelitis associated with pyoderma gangrenosum. Int J Rheum Dis 2022; 25:1333-1338. [PMID: 36004431 DOI: 10.1111/1756-185x.14425] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 07/26/2022] [Accepted: 08/04/2022] [Indexed: 11/28/2022]
Abstract
BACKGROUND Chronic recurrent multifocal osteomyelitis (CRMO) is a bone inflammatory disorder characterized by osteolytic, usually multiple, symmetric lesions. Diagnosis is one of exclusion, and no standardized therapies are available. Presumed deregulation of the interleukin (IL)-1β axis, as observed in 2 monogenic autoinflammatory conditions such as Majeed syndrome (LPIN2 mutations) and deficiency of IL-1 receptor antagonist (IL1RN mutations) with CRMO-like bone involvement, suggests the blockade of IL-1 as potentially useful also in this condition, even if scarce data are available. CASE PRESENTATION We report the case of a 13-year-old girl affected by a multidrug-resistant and pyoderma gangrenosum-complicated CRMO treated with canakinumab, a human monoclonal antibody targeting IL-1β. CONCLUSION In this young patient pyoderma gangrenosum and CRMO showed a rapid and satisfactory response to canakinumab, although over time a decreased efficacy in controlling bone disease was observed.
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Affiliation(s)
- Sabrina Acierno
- Department of Woman, Child and of General and Specialized Surgery, Università degli Studi della Campania "Luigi Vanvitelli", Naples, Italy
| | - Francesca Angrisani
- Department of Woman, Child and of General and Specialized Surgery, Università degli Studi della Campania "Luigi Vanvitelli", Naples, Italy
| | - Achille Marino
- Pediatric Rheumatology Unit, ASST G. Pini - CTO, Milan, Italy
| | - Roberto Felice Caporali
- University of Milan, Milan, Italy.,Division of Clinical Rheumatology, ASST G. Pini - CTO, Milan, Italy
| | - Rolando Cimaz
- Pediatric Rheumatology Unit, ASST G. Pini - CTO, Milan, Italy.,University of Milan, Milan, Italy
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Cheng W, Li F, Tian J, Xie X, Chen JW, Peng XF, Tang Q, Ge Y. New Insights in the Treatment of SAPHO Syndrome and Medication Recommendations. J Inflamm Res 2022; 15:2365-2380. [PMID: 35444448 PMCID: PMC9013916 DOI: 10.2147/jir.s353539] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Accepted: 03/25/2022] [Indexed: 11/23/2022] Open
Abstract
Synovitis, acne, pustulosis, hyperostosis, osteitis (SAPHO) syndrome is a rare autoinflammatory disease characterized by dermatological disorders and osteoarticular inflammatory lesions. This article reviews the application of biologics and other treatments based on the therapeutic target and the size of molecules in SAPHO syndrome. We found that drugs, especially biologics, have different effects on bone, joint, and skin damage. This may relate to the different inflammatory pathways involved in the osteoarticular and cutaneous symptoms in SAPHO patients. In this study, we provide stratified medication recommendations for SAPHO syndrome. Patients with osteoarticular symptoms can consider tumor necrosis factor blockers, JAK inhibitor, interleukin (IL)-1 inhibitor, and IL-17 inhibitor. Patients with cutaneous symptoms should consider IL-17 and JAK inhibitors. Apremilast, Tripterygium wilfordii Hook F, and bisphosphonates are other effective treatments.
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Affiliation(s)
- Wei Cheng
- Department of Rheumatology and Immunology, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, People’s Republic of China
| | - Fen Li
- Department of Rheumatology and Immunology, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, People’s Republic of China
| | - Jing Tian
- Department of Rheumatology and Immunology, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, People’s Republic of China
| | - Xi Xie
- Department of Rheumatology and Immunology, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, People’s Republic of China
| | - Jin-Wei Chen
- Department of Rheumatology and Immunology, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, People’s Republic of China
| | - Xiao-Fei Peng
- Department of Rheumatology and Immunology, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, People’s Republic of China
| | - Qi Tang
- Department of Rheumatology and Immunology, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, People’s Republic of China
| | - Yan Ge
- Department of Rheumatology and Immunology, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, People’s Republic of China
- Correspondence: Yan Ge, Department of Rheumatology and Immunology, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, People’s Republic of China, Email
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11
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Slouma M, Bettaieb H, Rahmouni S, Litaiem N, Dhahri R, Gharsallah I, Metoui L, Louzir B. Pharmacological Management of Synovitis, Acne, Pustulosis, Hyperostosis, and Osteitis Syndrome Syndrome: A Proposal of a Treatment Algorithm. J Clin Rheumatol 2022; 28:e545-e551. [PMID: 33843770 DOI: 10.1097/rhu.0000000000001740] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
ABSTRACT Synovitis, acne, pustulosis, hyperostosis, and osteitis (SAPHO) syndrome is a rare chronic disease with marked clinical and radiological heterogeneity. It is characterized by a combination of dermatological and osteoarticular manifestations. The treatment of SAPHO syndrome is not yet codified. It includes several therapeutic options such as anti-inflammatory drugs, bisphosphonates, antibiotics, conventional disease-modifying antirheumatic drugs, and biological treatment.This article aims to provide an updated review of the different pharmacological options for SAPHO syndrome. We also propose a therapeutic algorithm for the management of this disease.
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12
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Rausch P, Hartmann M, Baines JF, von Bismarck P. Analysis of the fecal and oral microbiota in chronic recurrent multifocal osteomyelitis. Arthritis Res Ther 2022; 24:54. [PMID: 35193655 PMCID: PMC8862485 DOI: 10.1186/s13075-021-02711-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Accepted: 12/20/2021] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Chronic recurrent multifocal osteomyelitis (CRMO) is a rare autoinflammatory bone disease for which a lack of bacterial involvement is a key diagnostic feature to distinguish it from other symptomatically related diseases. However, the growing evidence suggesting an involvement of the host-associated microbiota in rheumatic disorders together with the now wide accessibility of modern culture-independent methods warrant a closer examination of CRMO. METHODS In this study, we show through bacterial 16S rRNA gene profiling that numerous features of the oral- and fecal microbial communities differentiate children with and without CRMO. RESULTS Notably, communities in diseased children are characterized by a lack of potential probiotic bacteria in the fecal community and an overabundance of known pathobionts in the oral microbial communities. Of special interest is the HACEK group, a set of commonly known oral pathogens that are implicated in the development of several acute and chronic diseases such as osteitis and rheumatoid arthritis. Furthermore, we observe that gut bacterial communities in the diseased children appear to reflect an altered host physiology more strongly than the oral community, which could suggest an oral disease origin followed by propagation and/or responses beyond the oral cavity. CONCLUSIONS Bacterial communities, in particular the oral microbiota, may serve as an indicator of underlying susceptibility to CRMO, or play a yet undefined role in its development.
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Affiliation(s)
- Philipp Rausch
- Institute for Clinical Molecular Biology (IKMB), Kiel University, Kiel, Germany
- Laboratory of Genomics and Molecular Biomedicine, Department of Biology, University of Copenhagen, Copenhagen, Denmark
| | - Meike Hartmann
- Clinic for General Pediatrics, University Hospital Schleswig-Holstein, Kiel, Germany
| | - John F Baines
- Max Planck Institute for Evolutionary Biology, Plön, Germany.
- Institute for Experimental Medicine, Kiel University, Kiel, Germany.
| | - Philipp von Bismarck
- Clinic for General Pediatrics, University Hospital Schleswig-Holstein, Kiel, Germany.
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Stefania S, Colia R, Cinzia R, Corrado A, Cantatore FP. Off-label use of anti-IL-1 drugs in rheumatic diseases. Int J Immunopathol Pharmacol 2021; 35:20587384211006584. [PMID: 33855881 PMCID: PMC8056561 DOI: 10.1177/20587384211006584] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Interleukin-1 (IL-1) plays a key role in the pathogenesis of different rheumatic diseases. There are now several agents available on the market capable of blocking IL-1. The proven effectiveness and excellent safety of these drugs makes them a possible therapeutic option in the treatment of IL-1 driven diseases, when previous therapies are contraindicated or ineffective. This article discusses the European wide off-label use of these drugs for the treatment of rheumatic diseases.
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Affiliation(s)
- Silvia Stefania
- Rheumatology Clinic, Department of Medical and Surgical Sciences, University of Foggia, Foggia, Italy
| | - Ripalta Colia
- Rheumatology Clinic, Department of Medical and Surgical Sciences, University of Foggia, Foggia, Italy
| | - Rotondo Cinzia
- Rheumatology Clinic, Department of Medical and Surgical Sciences, University of Foggia, Foggia, Italy
| | - Addolorata Corrado
- Rheumatology Clinic, Department of Medical and Surgical Sciences, University of Foggia, Foggia, Italy
| | - Francesco Paolo Cantatore
- Rheumatology Clinic, Department of Medical and Surgical Sciences, University of Foggia, Foggia, Italy
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Chronic nonbacterial osteomyelitis (CNO) and chronic recurrent multifocal osteomyelitis (CRMO). J Transl Autoimmun 2021; 4:100095. [PMID: 33870159 PMCID: PMC8040271 DOI: 10.1016/j.jtauto.2021.100095] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 02/22/2021] [Accepted: 03/10/2021] [Indexed: 01/01/2023] Open
Abstract
Chronic nonbacterial osteomyelitis (CNO) is an inflammatory bone disorder that most frequently affects children and adolescents. Chronic recurrent multifocal osteomyelitis (CRMO) is a severe form of CNO, usually characterized by symmetrical inflammatory bone lesions and its waxing and waning character. Sometimes severe and chronic pain can significantly affect the quality of life and psychosocial development of individuals affected. In the absence of prospectively tested and widely accepted diagnostic criteria or disease biomarkers, CNO remains a diagnosis of exclusion, and infections, malignancy and other differentials require consideration (1). The pathophysiology of CNO is not fully understood, but imbalanced cytokine expression and increased inflammasome activation in monocytes from CNO patients contribute to a pro-inflammatory phenotype that contributes to bone inflammation (2). Currently, no medications are licensed for the use in CNO. Most patients show at least some response to nonsteroidal anti-inflammatory drugs, others require more aggressive treatment that can include corticosteroids, cytokine-blocking agents and/or bisphosphonates (3). While under the care of an experienced team and sufficient treatment, the prognosis is good, but some patients will develop sequalae which can include vertebral compression fractures (1). CNO is an autoinflammatory bone disorder mostly affecting children and adolescents. Dysregulated cytokine expression and pathological activation of inflammasomes play a central role. Treatment is based on experience from case series and expert consensus treatment plans. Understanding the exact molecular pathophysiology will allow patient stratification and individualized treatment.
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15
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Meier-Schiesser B, French LE. Autoinflammationssyndrome. J Dtsch Dermatol Ges 2021; 19:400-428. [PMID: 33709590 DOI: 10.1111/ddg.14332_g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Accepted: 01/07/2020] [Indexed: 11/29/2022]
Affiliation(s)
| | - Lars E French
- Klinik und Poliklinik für Dermatologie und Allergologie, Ludwigs-Maximilians-Universität München, Deutschland
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16
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Meier-Schiesser B, French LE. Autoinflammatory syndromes. J Dtsch Dermatol Ges 2021; 19:400-426. [PMID: 33620111 DOI: 10.1111/ddg.14332] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Accepted: 01/07/2021] [Indexed: 01/05/2023]
Abstract
Autoinflammatory syndromes are a steadily growing group of inflammatory diseases caused by abnormal regulations of the innate immune system. The clinical presentation is multifaceted, but recurrent fever, skin involvement, joint inflammation and other systemic symptoms of inflammation are characteristic. In contrast to classic autoimmune diseases, autoantibodies or specific T cells are not involved in the pathogenesis. In fact, innate immunity plays the most important role in autoinflammation. While activation of the innate immune system is usually self-limiting in healthy individuals, mutations and dysregulation can lead to chronic and excessive activation of innate immune responses and to the development of autoinflammatory diseases.
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Affiliation(s)
| | - Lars E French
- Department of Dermatology, Ludwig-Maximilians University Hospital, Munich, Germany
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17
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Hedrich CM, Morbach H, Reiser C, Girschick HJ. New Insights into Adult and Paediatric Chronic Non-bacterial Osteomyelitis CNO. Curr Rheumatol Rep 2020; 22:52. [PMID: 32705386 PMCID: PMC7378119 DOI: 10.1007/s11926-020-00928-1] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Purpose of Review To describe in detail the clinical synopsis and pathophysiology of chronic non-bacterial osteomyelitis and SAPHO syndrome. Recent Findings Chronic non-bacterial osteomyelitis (CNO) has been identified as a disease entity for almost 50 years. This inflammatory bone disorder is characterized by osteolytic as well as hyperostotic/osteosclerotic lesions. It is chronic in nature, but it can present with episodic flairs and phases of remission, which have led to the denomination “chronic recurrent osteomyelitis”, with its severe multifocal form “chronic recurrent multifocal osteomyelitis” (CRMO). For almost three decades, an infectious aetiology had been considered, since especially Propionibacterium acnes had been isolated from bone lesions of individual patients. However, this concept has been challenged since long-term antibiotic therapy did not alter the course of disease and modern microbiological techniques (including PCR) failed to confirm bone infection as an underlying cause. Over recent years, a profound dysregulation of cytokine expression profiles has been demonstrated in innate immune cells of CNO patients. A hallmark of monocytes from CNO patients is the failure to produce immune regulatory cytokines interleukin-10 (IL-10) and IL-19, which have been linked with genetic and epigenetic alterations. Subsequently, a significant upregulation of pro-inflammatory, NLRP3 inflammasome-dependent cytokines (IL-1β and TNF-α), has been demonstrated. Summary The current knowledge on CNO, the underlying molecular pathophysiology, and modern imaging strategies are summarized; differential diagnoses, treatment options, outcome measures, as well as quality of life studies are discussed.
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Affiliation(s)
- Christian M Hedrich
- Department of Women's & Children's Health, Institute of Translational Medicine, University of Liverpool, Liverpool, UK.,Department of Paediatric Rheumatology, Alder Hey Children's NHS Foundation Trust Hospital, East Prescot Road, Liverpool, L14 5AB, Great Britain, UK
| | - Henner Morbach
- Pediatric Rheumatology and Immunology, Department of Pediatrics, University of Würzburg, Josef-Schneider-Str.2, 98080, Würzburg, Germany
| | - Christiane Reiser
- Department of Pediatrics, Pediatric Rheumatology and Immunology, Landeskrankenhaus Bregenz, Carl-Pedenz-Straße 12, 6900, Bregenz, Austria
| | - Hermann J Girschick
- Vivantes Klinikum Friedrichshain, Children's Hospital, Landsberger Allee 49, 10249, Berlin, Germany. .,University Childrens Hospital, Julius Maximilians Universität Würzburg, Würzburg, Germany.
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18
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Abstract
Autoinflammation leads to inflammation that mostly occurs without any clinically obvious reason. It can be so severe that organ damage with relevant tissue damage occurs. Inflammasomes are the drivers of autoinflammation. Although IL‑1 beta and the inflammasomes as its critical regulators are very important in autoinflammation, not all patients respond to inhibition of this signalling pathway. Several autoinflammatory diseases were associated with mutations in proteasome-immunoproteasome components. Autoinflammatory diseases caused by highly relevant genetic variants are mostly hereditary. Usually in childhood but not always. The coming years will show whether inflammatory dermatoses will be increasingly treated with suppression of the innate immune system in addition to inhibition of adaptive immunity.
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Affiliation(s)
- L Feldmeyer
- Department of Dermatology, Inselspital Bern University Hospital, University of Bern, Bern, Schweiz
| | - A A Navarini
- Dermatologie & Allergologie, Departmente Biomedizin, Biomedical Engineering & Klinische Forschung, Universitätsspital Basel, Petersgraben 4, 4031, Basel, Schweiz.
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19
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Tegtmeyer K, Atassi G, Zhao J, Maloney NJ, Lio PA. Off-Label studies on anakinra in dermatology: a review. J DERMATOL TREAT 2020; 33:73-86. [PMID: 32279586 DOI: 10.1080/09546634.2020.1755417] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Purpose: Anakinra (Kineret®) is an interleukin-1 receptor antagonist (IL-1Ra) FDA approved for use in rheumatoid arthritis and in neonatal-onset multisystem inflammatory disease (NOMID). It has been used off-label for a variety of dermatologic conditions. A review of the available studies and cases of these off-label uses would be valuable to the dermatologist considering alternative treatments for these oftentimes poorly studied conditions.Materials and methods: The PubMed/MEDLINE, EMBASE, Scopus, and ClinicalTrials.gov databases were searched with the term 'anakinra.' Results were manually screened to identify published data on off-label uses of anakinra in dermatologic conditions and systemic conditions with prominent dermatologic manifestations.Results: Anakinra appears to show efficacy for numerous dermatologic conditions, with the strongest evidence for hidradenitis suppurativa, Bechet's disease, Muckle-Wells syndrome, and SAPHO syndrome. Case reports and case series data are available for numerous other dermatologic conditions.Conclusion: Anakinra is a potential option for patients with certain difficult-to-treat dermatologic diseases, given its relatively benign adverse effect profile and its effectiveness in a wide array of conditions. Overall, anakinra appears to be a promising option in the treatment of numerous dermatologic inflammatory conditions refractory to first line therapies, but further and higher-quality data is needed to clarify its therapeutic role.
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Affiliation(s)
- Kyle Tegtmeyer
- Department of Dermatology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Giancarlo Atassi
- Department of Dermatology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Jeffrey Zhao
- Department of Dermatology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Nolan J Maloney
- Division of Dermatology, Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Peter A Lio
- Department of Dermatology and Pediatrics, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.,Medical Dermatology Associates of Chicago, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
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20
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Yamamoto T, Hiraiwa T, Tobita R, Hirano H, Masuda-Kuroki K, Ishii M, Murakami M, Terui T, Okubo Y. Characteristics of Japanese patients with pustulotic arthro-osteitis associated with palmoplantar pustulosis: a multicenter study. Int J Dermatol 2020; 59:441-444. [PMID: 31985054 DOI: 10.1111/ijd.14788] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Revised: 12/03/2019] [Accepted: 12/23/2019] [Indexed: 12/21/2022]
Abstract
BACKGROUND Pustulotic arthro-osteitis (PAO) is a major comorbidity of palmoplantar pustulosis (PPP), which is frequently seen in Japanese patients. To determine the characteristics of Japanese patients with PAO, we conducted a multicenter, retrospective epidemiologic survey at four university hospitals. METHODS Clinical features including age, gender, duration of disease, extrapalmoplantar lesion, smoking habit, focal infection, site of joint pain, bone scintigraphy with Technetium99 , and therapies were retrospectively evaluated. RESULTS In total, 165 patients with PAO were identified among 576 patients with PPP (28.6%). The male to female ratio was 1 : 3.7, and the mean age was 50.2 years. The mean disease duration of PAO was 6.0 years. Smoking habit was observed in 104 patients. Focal infection was detected in 74 patients, who developed tonsillar infection (n = 41), sinusitis (8), odontogenic infection (40), and others (2). Fifteen patients had multifocal infection. Technetium bone scintigraphy was performed in 97 cases. Increased uptake was most frequently observed in the sternocostoclavicular regions, followed by wrist and ankle, sacroiliac joint, knee and elbow, finger and toe, lumbar spine, thoracic spine, scapula, and thigh. Patients were mainly treated with nonsteroidal anti-inflammatory drugs, methotrexate, cyclosporine, antibiotics, and biologics, as well as tonsillectomy and dental treatment. CONCLUSION PAO frequently involves the anterior chest wall of middle-aged women with smoking habit and is closely associated with focal infection.
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Affiliation(s)
- Toshiyuki Yamamoto
- Department of Dermatology, Fukushima Medical University, Fukushima, Japan
| | - Tomoko Hiraiwa
- Department of Dermatology, Fukushima Medical University, Fukushima, Japan
| | - Rie Tobita
- Department of Dermatology, Tokyo Medical University, Tokyo, Japan
| | - Hirofumi Hirano
- Department of Dermatology, Tokyo Medical University, Tokyo, Japan
| | | | - Madoka Ishii
- Department of Dermatology, Nihon University, Tokyo, Japan
| | | | - Tadashi Terui
- Department of Dermatology, Nihon University, Tokyo, Japan
| | - Yukari Okubo
- Department of Dermatology, Tokyo Medical University, Tokyo, Japan
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21
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Vallon V, Unwin R, Inscho EW, Leipziger J, Kishore BK. Extracellular Nucleotides and P2 Receptors in Renal Function. Physiol Rev 2019; 100:211-269. [PMID: 31437091 DOI: 10.1152/physrev.00038.2018] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
The understanding of the nucleotide/P2 receptor system in the regulation of renal hemodynamics and transport function has grown exponentially over the last 20 yr. This review attempts to integrate the available data while also identifying areas of missing information. First, the determinants of nucleotide concentrations in the interstitial and tubular fluids of the kidney are described, including mechanisms of cellular release of nucleotides and their extracellular breakdown. Then the renal cell membrane expression of P2X and P2Y receptors is discussed in the context of their effects on renal vascular and tubular functions. Attention is paid to effects on the cortical vasculature and intraglomerular structures, autoregulation of renal blood flow, tubuloglomerular feedback, and the control of medullary blood flow. The role of the nucleotide/P2 receptor system in the autocrine/paracrine regulation of sodium and fluid transport in the tubular and collecting duct system is outlined together with its role in integrative sodium and fluid homeostasis and blood pressure control. The final section summarizes the rapidly growing evidence indicating a prominent role of the extracellular nucleotide/P2 receptor system in the pathophysiology of the kidney and aims to identify potential therapeutic opportunities, including hypertension, lithium-induced nephropathy, polycystic kidney disease, and kidney inflammation. We are only beginning to unravel the distinct physiological and pathophysiological influences of the extracellular nucleotide/P2 receptor system and the associated therapeutic perspectives.
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Affiliation(s)
- Volker Vallon
- Departments of Medicine and Pharmacology, University of California San Diego & VA San Diego Healthcare System, San Diego, California; Centre for Nephrology, Division of Medicine, University College London, London, United Kingdom; IMED ECD CVRM R&D, AstraZeneca, Gothenburg, Sweden; Department of Medicine, Division of Nephrology, The University of Alabama at Birmingham, Birmingham, Alabama; Department of Biomedicine/Physiology, Aarhus University, Aarhus, Denmark; Departments of Internal Medicine and Nutrition and Integrative Physiology, and Center on Aging, University of Utah Health & Nephrology Research, VA Salt Lake City Healthcare System, Salt Lake City, Utah
| | - Robert Unwin
- Departments of Medicine and Pharmacology, University of California San Diego & VA San Diego Healthcare System, San Diego, California; Centre for Nephrology, Division of Medicine, University College London, London, United Kingdom; IMED ECD CVRM R&D, AstraZeneca, Gothenburg, Sweden; Department of Medicine, Division of Nephrology, The University of Alabama at Birmingham, Birmingham, Alabama; Department of Biomedicine/Physiology, Aarhus University, Aarhus, Denmark; Departments of Internal Medicine and Nutrition and Integrative Physiology, and Center on Aging, University of Utah Health & Nephrology Research, VA Salt Lake City Healthcare System, Salt Lake City, Utah
| | - Edward W Inscho
- Departments of Medicine and Pharmacology, University of California San Diego & VA San Diego Healthcare System, San Diego, California; Centre for Nephrology, Division of Medicine, University College London, London, United Kingdom; IMED ECD CVRM R&D, AstraZeneca, Gothenburg, Sweden; Department of Medicine, Division of Nephrology, The University of Alabama at Birmingham, Birmingham, Alabama; Department of Biomedicine/Physiology, Aarhus University, Aarhus, Denmark; Departments of Internal Medicine and Nutrition and Integrative Physiology, and Center on Aging, University of Utah Health & Nephrology Research, VA Salt Lake City Healthcare System, Salt Lake City, Utah
| | - Jens Leipziger
- Departments of Medicine and Pharmacology, University of California San Diego & VA San Diego Healthcare System, San Diego, California; Centre for Nephrology, Division of Medicine, University College London, London, United Kingdom; IMED ECD CVRM R&D, AstraZeneca, Gothenburg, Sweden; Department of Medicine, Division of Nephrology, The University of Alabama at Birmingham, Birmingham, Alabama; Department of Biomedicine/Physiology, Aarhus University, Aarhus, Denmark; Departments of Internal Medicine and Nutrition and Integrative Physiology, and Center on Aging, University of Utah Health & Nephrology Research, VA Salt Lake City Healthcare System, Salt Lake City, Utah
| | - Bellamkonda K Kishore
- Departments of Medicine and Pharmacology, University of California San Diego & VA San Diego Healthcare System, San Diego, California; Centre for Nephrology, Division of Medicine, University College London, London, United Kingdom; IMED ECD CVRM R&D, AstraZeneca, Gothenburg, Sweden; Department of Medicine, Division of Nephrology, The University of Alabama at Birmingham, Birmingham, Alabama; Department of Biomedicine/Physiology, Aarhus University, Aarhus, Denmark; Departments of Internal Medicine and Nutrition and Integrative Physiology, and Center on Aging, University of Utah Health & Nephrology Research, VA Salt Lake City Healthcare System, Salt Lake City, Utah
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22
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Abstract
The autoinflammatory diseases comprise a broad spectrum of disorders characterized by unchecked activation of the innate immune system. Whereas aberrations in adaptive immunity have long been identified in 'autoimmune' disorders, the concept of 'autoinflammation' emerged relatively recently, first describing a group of clinical disorders characterized by spontaneous episodes of systemic inflammation without manifestations typical of autoimmune disorders. Improved knowledge of innate immune mechanisms, coupled with remarkable progress in genomics and an expanding number of clinical cases, has since led to an increasing number of disorders classified as autoinflammatory or containing an autoinflammatory component. Biologic therapies targeting specific components of the innate immune system have provided immense clinical benefit, and have further elucidated the role of innate immunity in autoinflammatory disorders. This article reviews the basic mechanisms of autoinflammation, followed by an update on the pathophysiology and treatment of the monogenic and multifactorial autoinflammatory diseases, and the common dermatologic conditions in which autoinflammation plays a major role.
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Figueiredo ASB, Oliveira AL, Caetano A, Moraes-Fontes MF. SAPHO: has the time come for tailored therapy? Clin Rheumatol 2019; 39:177-187. [PMID: 31312988 DOI: 10.1007/s10067-019-04675-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Revised: 06/26/2019] [Accepted: 07/01/2019] [Indexed: 12/13/2022]
Abstract
SAPHO (synovitis, acne, pustulosis, hyperostosis and osteitis) syndrome is a heterogeneous condition combining osteoarticular and cutaneous manifestations. Conventional treatments are mostly ineffective. We hereby report two patients, the first with an aggressive form of disease and the second with an incomplete response to two different anti-TNF-α agents. Both were successfully treated with tocilizumab and ustekinumab, respectively, over a long period of time. A narrative review of a biological therapy in SAPHO syndrome yielded very little information on the specific use of these agents. We highlight the advantages of personalising therapy and describe emerging promising treatments for this disease.
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Affiliation(s)
- Adelaide Sofia Batalha Figueiredo
- Unidade de Doenças Auto-imunes/Serviço Medicina 7.2, Hospital de Curry Cabral, Centro Hospitalar Universitário de Lisboa Central, Lisbon, Portugal. .,Serviço de Medicina IV, Hospital de Santarém EPE, Av. Bernardo Santareno, 2005-177, Santarém, Portugal.
| | - Ana Luísa Oliveira
- Unidade de Doenças Auto-imunes/Serviço Medicina 7.2, Hospital de Curry Cabral, Centro Hospitalar Universitário de Lisboa Central, Lisbon, Portugal.,Serviço de Medicina I, Unidade Local de Saúde do Baixo Alentejo, Hospital José Joaquim Fernandes, Beja, Portugal
| | - António Caetano
- Serviço de Radiologia do Hospital de Curry Cabral, Centro Hospitalar Universitário de Lisboa Central, Lisbon, Portugal
| | - Maria Francisca Moraes-Fontes
- Unidade de Doenças Auto-imunes/Serviço Medicina 7.2, Hospital de Curry Cabral, Centro Hospitalar Universitário de Lisboa Central, Lisbon, Portugal
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24
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Daoussis D, Konstantopoulou G, Kraniotis P, Sakkas L, Liossis SN. Biologics in SAPHO syndrome: A systematic review. Semin Arthritis Rheum 2019; 48:618-625. [DOI: 10.1016/j.semarthrit.2018.04.003] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Revised: 03/30/2018] [Accepted: 04/16/2018] [Indexed: 02/08/2023]
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Cavalli G, Dinarello CA. Anakinra Therapy for Non-cancer Inflammatory Diseases. Front Pharmacol 2018; 9:1157. [PMID: 30459597 PMCID: PMC6232613 DOI: 10.3389/fphar.2018.01157] [Citation(s) in RCA: 170] [Impact Index Per Article: 28.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Accepted: 09/24/2018] [Indexed: 12/14/2022] Open
Abstract
Interleukin-1 (IL-1) is the prototypical inflammatory cytokine: two distinct ligands (IL-1α and IL-1β) bind the IL-1 type 1 receptor (IL-1R1) and induce a myriad of secondary inflammatory mediators, including prostaglandins, cytokines, and chemokines. IL-1α is constitutively present in endothelial and epithelial cells, whereas IL-1β is inducible in myeloid cells and released following cleavage by caspase-1. Over the past 30 years, IL-1-mediated inflammation has been established in a broad spectrum of diseases, ranging from rare autoinflammatory diseases to common conditions such as gout and rheumatoid arthritis (RA), type 2 diabetes, atherosclerosis, and acute myocardial infarction. Blocking IL-1 entered the clinical arena with anakinra, the recombinant form of the naturally occurring IL-1 receptor antagonist (IL-1Ra); IL-1Ra prevents the binding of IL-1α as well as IL-1β to IL-1R1. Quenching IL-1-mediated inflammation prevents the detrimental consequences of tissue damage and organ dysfunction. Although anakinra is presently approved for the treatment of RA and cryopyrin-associated periodic syndromes, off-label use of anakinra far exceeds its approved indications. Dosing of 100 mg of anakinra subcutaneously provides clinically evident benefits within days and for some diseases, anakinra has been used daily for over 12 years. Compared to other biologics, anakinra has an unparalleled record of safety: opportunistic infections, particularly Mycobacterium tuberculosis, are rare even in populations at risk for reactivation of latent infections. Because of this excellent safety profile and relative short duration of action, anakinra can also be used as a diagnostic tool for undefined diseases mediated by IL-1. Although anakinra is presently in clinical trials to treat cancer, this review focuses on anakinra treatment of acute as well as chronic inflammatory diseases.
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Affiliation(s)
- Giulio Cavalli
- Unit of Immunology, Rheumatology, Allergy and Rare Diseases, San Raffaele Hospital, Vita-Salute San Raffaele University, Milan, Italy
- Department of Medicine, Radboud University Medical Center, Nijmegen, Netherlands
| | - Charles A. Dinarello
- Department of Medicine, Radboud University Medical Center, Nijmegen, Netherlands
- Department of Medicine, University of Colorado Denver, Denver, CO, United States
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Abstract
Background Autoinflammatory diseases are distinct from autoimmune diseases. Whereas autoinflammatory diseases are due to dysfunctional T-cells and B-cells, autoinflammatory diseases are due to overproduction of macrophage cytokines particularly interleukin-1 beta (IL-1β). A causative role for IL-1 in autoinflammatory diseases is derived from clinical studies blocking the IL-1 receptor or neutralizing monoclonal antibodies or soluble receptors. Methods A review was performed of clinical trials in autoinflammatory diseases using the IL-1 receptor antagonist (anakinra), the soluble IL-1 receptor (rilonacept), antibodies to IL-1β (canakinumab, gevokizumab) and anti-IL-1α (xilonix). Findings Anakinra blocks the IL-1 Receptor type 1 (IL-1R1) and therefore blocks the activities of both IL-1α and IL-1β. Off-label use of anakinra is common for a broad spectrum of inflammatory diseases. Neutralization of IL-1β is used to treat hereditary autoinflammatory diseases but also atherosclerosis. Rilonacept reduces arterial wall inflammation in patients with chronic kidney disease. Neutralization of IL-1α has prolonged life in patients with advanced metastatic colorectal cancer. Compared to other cytokine blocking therapies, reducing the activities of IL-1 has an excellent safety record. Conclusions Blocking IL-1 therapies can be used to treat a wide-spectrum of acute and chronic inflammatory diseases.
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Wu Y, Jin F, Liu J, Zheng D, Wang Y, Wu F, Zhu Y, Wang Y. Protective Effect of Theaflavin-3-digallate on Lipopolysaccharide-induced Inflammation Injury in Macrophage Cells. INT J PHARMACOL 2017. [DOI: 10.3923/ijp.2017.980.989] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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28
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Greenwood S, Leone A, Cassar-Pullicino VN. SAPHO and Recurrent Multifocal Osteomyelitis. Radiol Clin North Am 2017; 55:1035-1053. [DOI: 10.1016/j.rcl.2017.04.009] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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29
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Cianci F, Zoli A, Gremese E, Ferraccioli G. Clinical heterogeneity of SAPHO syndrome: challenging diagnose and treatment. Clin Rheumatol 2017; 36:2151-2158. [PMID: 28725947 DOI: 10.1007/s10067-017-3751-1] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Revised: 07/02/2017] [Accepted: 07/05/2017] [Indexed: 12/11/2022]
Abstract
Synovitis, acne, pustulosis, hyperostosis and osteitis (SAPHO) syndrome is a rare disease which is often misdiagnosed and under-recognized, because of its peculiar and heterogeneous clinical presentation. Its main features consist of cutaneous and osteoarticular manifestations, the latter affecting more often the anterior chest wall and having typical radiologic findings. There are no validated diagnostic criteria for SAPHO and no guidelines for treatment, due mainly to its rarity; as a consequence, therapy is empirical and aimed to control pain and modifying inflammatory process. To date, the use of anti-TNF agents has been proved to be a valid alternative for patients unresponsive to conventional treatments, such as NSAIDs, corticosteroids, DMARDs and biphosphonates. The clinical heterogeneity of the disease, possibly due to differences in pathogenic mechanism of different manifestations, is challenging for both diagnosis and treatment, which should aim to control both skin and bone involvement in different clinical subsets. Here, we summarize the current status of knowledge about the SAPHO syndrome and present two cases of patients with very different disease manifestations, suggesting the need for personalized treatment.
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Affiliation(s)
- Francesco Cianci
- Istituto di Reumatologia e Scienze Affini, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Angelo Zoli
- Istituto di Reumatologia e Scienze Affini, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Elisa Gremese
- Istituto di Reumatologia e Scienze Affini, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Gianfranco Ferraccioli
- Istituto di Reumatologia e Scienze Affini, Università Cattolica del Sacro Cuore, Rome, Italy. .,Institute of Rheumatology, School of Medicine, Catholic University of the Sacred Heart, Fondazione Policlinico Gemelli, CIC-Via Moscati 31, 00168, Rome, Italy.
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Pardeo M, Pires Marafon D, Messia V, Garganese MC, De Benedetti F, Insalaco A. Anakinra in a Cohort of Children with Chronic Nonbacterial Osteomyelitis. J Rheumatol 2017; 44:1231-1238. [PMID: 28620059 DOI: 10.3899/jrheum.160690] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/20/2017] [Indexed: 01/09/2023]
Abstract
OBJECTIVE To report efficacy and safety in patients with chronic nonbacterial osteomyelitis (CNO) unresponsive to nonsteroidal antiinflammatory drugs (NSAID) and bisphosphonates and/or glucocorticoids treated with anakinra. METHODS Nine patients (6 females) with refractory CNO were treated with anakinra for at least 6 months. We recorded, at baseline and after 6 months of treatment, clinical and laboratory features, and number and distribution of bone lesions detected by 99mTc-MDP bone scintigraphy. Disease activity was evaluated using a physician's global assessment (PGA). RESULTS At baseline, 9/9 patients had mild to severe PGA. After 6 months of treatment, in 5 patients the PGA score was graded from none to minimal. At baseline, erythrocyte sedimentation rate (ESR) and C-reactive protein (CRP) were elevated in 8 out of 9 patients. After 6 months, 5/9 patients had normalized CRP and ESR and in all except 1, CRP and ESR decreased. Before starting anakinra, a total of 77 bone lesions were detected by bone scintigraphy. After 6 months of treatment of the 77 lesions, 42 had resolved and 35 were stable. In 7/9 patients, 20 new lesions appeared during treatment; 2 of these 7 patients were symptomatic. At the last followup visit (median 1.7 yrs, range 0.8-2.8), 6/9 patients maintained a PGA graded as none to minimal. CONCLUSION Anakinra is a possible therapeutic alternative in patients with refractory CNO. The practical significance of clinically silent bone lesions detected by bone scintigraphy remains to be established.
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Affiliation(s)
- Manuela Pardeo
- From the Division of Rheumatology, and the Nuclear Medicine Unit, Ospedale Pediatrico Bambino Gesù IRCCS, Rome, Italy. .,M. Pardeo, MD, Division of Rheumatology, Ospedale Pediatrico Bambino Gesù IRCCS; D. Pires Marafon, MD, Division of Rheumatology, Ospedale Pediatrico Bambino Gesù IRCCS; V. Messia, MD, Division of Rheumatology, Ospedale Pediatrico Bambino Gesù IRCCS; M.C. Garganese, MD, Nuclear Medicine Unit, Ospedale Pediatrico Bambino Gesù IRCCS; F. De Benedetti, MD, PhD, Division of Rheumatology, Ospedale Pediatrico Bambino Gesù IRCCS; A. Insalaco, MD, Division of Rheumatology, Ospedale Pediatrico Bambino Gesù IRCCS.
| | - Denise Pires Marafon
- From the Division of Rheumatology, and the Nuclear Medicine Unit, Ospedale Pediatrico Bambino Gesù IRCCS, Rome, Italy.,M. Pardeo, MD, Division of Rheumatology, Ospedale Pediatrico Bambino Gesù IRCCS; D. Pires Marafon, MD, Division of Rheumatology, Ospedale Pediatrico Bambino Gesù IRCCS; V. Messia, MD, Division of Rheumatology, Ospedale Pediatrico Bambino Gesù IRCCS; M.C. Garganese, MD, Nuclear Medicine Unit, Ospedale Pediatrico Bambino Gesù IRCCS; F. De Benedetti, MD, PhD, Division of Rheumatology, Ospedale Pediatrico Bambino Gesù IRCCS; A. Insalaco, MD, Division of Rheumatology, Ospedale Pediatrico Bambino Gesù IRCCS
| | - Virginia Messia
- From the Division of Rheumatology, and the Nuclear Medicine Unit, Ospedale Pediatrico Bambino Gesù IRCCS, Rome, Italy.,M. Pardeo, MD, Division of Rheumatology, Ospedale Pediatrico Bambino Gesù IRCCS; D. Pires Marafon, MD, Division of Rheumatology, Ospedale Pediatrico Bambino Gesù IRCCS; V. Messia, MD, Division of Rheumatology, Ospedale Pediatrico Bambino Gesù IRCCS; M.C. Garganese, MD, Nuclear Medicine Unit, Ospedale Pediatrico Bambino Gesù IRCCS; F. De Benedetti, MD, PhD, Division of Rheumatology, Ospedale Pediatrico Bambino Gesù IRCCS; A. Insalaco, MD, Division of Rheumatology, Ospedale Pediatrico Bambino Gesù IRCCS
| | - Maria Carmen Garganese
- From the Division of Rheumatology, and the Nuclear Medicine Unit, Ospedale Pediatrico Bambino Gesù IRCCS, Rome, Italy.,M. Pardeo, MD, Division of Rheumatology, Ospedale Pediatrico Bambino Gesù IRCCS; D. Pires Marafon, MD, Division of Rheumatology, Ospedale Pediatrico Bambino Gesù IRCCS; V. Messia, MD, Division of Rheumatology, Ospedale Pediatrico Bambino Gesù IRCCS; M.C. Garganese, MD, Nuclear Medicine Unit, Ospedale Pediatrico Bambino Gesù IRCCS; F. De Benedetti, MD, PhD, Division of Rheumatology, Ospedale Pediatrico Bambino Gesù IRCCS; A. Insalaco, MD, Division of Rheumatology, Ospedale Pediatrico Bambino Gesù IRCCS
| | - Fabrizio De Benedetti
- From the Division of Rheumatology, and the Nuclear Medicine Unit, Ospedale Pediatrico Bambino Gesù IRCCS, Rome, Italy.,M. Pardeo, MD, Division of Rheumatology, Ospedale Pediatrico Bambino Gesù IRCCS; D. Pires Marafon, MD, Division of Rheumatology, Ospedale Pediatrico Bambino Gesù IRCCS; V. Messia, MD, Division of Rheumatology, Ospedale Pediatrico Bambino Gesù IRCCS; M.C. Garganese, MD, Nuclear Medicine Unit, Ospedale Pediatrico Bambino Gesù IRCCS; F. De Benedetti, MD, PhD, Division of Rheumatology, Ospedale Pediatrico Bambino Gesù IRCCS; A. Insalaco, MD, Division of Rheumatology, Ospedale Pediatrico Bambino Gesù IRCCS
| | - Antonella Insalaco
- From the Division of Rheumatology, and the Nuclear Medicine Unit, Ospedale Pediatrico Bambino Gesù IRCCS, Rome, Italy. .,M. Pardeo, MD, Division of Rheumatology, Ospedale Pediatrico Bambino Gesù IRCCS; D. Pires Marafon, MD, Division of Rheumatology, Ospedale Pediatrico Bambino Gesù IRCCS; V. Messia, MD, Division of Rheumatology, Ospedale Pediatrico Bambino Gesù IRCCS; M.C. Garganese, MD, Nuclear Medicine Unit, Ospedale Pediatrico Bambino Gesù IRCCS; F. De Benedetti, MD, PhD, Division of Rheumatology, Ospedale Pediatrico Bambino Gesù IRCCS; A. Insalaco, MD, Division of Rheumatology, Ospedale Pediatrico Bambino Gesù IRCCS.
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Fenini G, Contassot E, French LE. Potential of IL-1, IL-18 and Inflammasome Inhibition for the Treatment of Inflammatory Skin Diseases. Front Pharmacol 2017; 8:278. [PMID: 28588486 PMCID: PMC5438978 DOI: 10.3389/fphar.2017.00278] [Citation(s) in RCA: 81] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2017] [Accepted: 05/02/2017] [Indexed: 11/13/2022] Open
Abstract
In 2002, intracellular protein complexes known as the inflammasomes were discovered and were shown to have a crucial role in the sensing of intracellular pathogen- and danger-associated molecular patterns (PAMPs and DAMPs). Activation of the inflammasomes results in the processing and subsequent secretion of the pro-inflammatory cytokines IL-1β and IL-18. Several autoinflammatory disorders such as cryopyrin-associated periodic syndromes and Familial Mediterranean Fever have been associated with mutations of genes encoding inflammasome components. Moreover, the importance of IL-1 has been reported for an increasing number of autoinflammatory skin diseases including but not limited to deficiency of IL-1 receptor antagonist, mevalonate kinase deficiency and PAPA syndrome. Recent findings have revealed that excessive IL-1 release induced by harmful stimuli likely contributes to the pathogenesis of common dermatological diseases such as acne vulgaris or seborrheic dermatitis. A key pathogenic feature of these diseases is IL-1β-induced neutrophil recruitment to the skin. IL-1β blockade may therefore represent a promising therapeutic approach. Several case reports and clinical trials have demonstrated the efficacy of IL-1 inhibition in the treatment of these skin disorders. Next to the recombinant IL-1 receptor antagonist (IL-1Ra) Anakinra and the soluble decoy Rilonacept, the anti-IL-1α monoclonal antibody MABp1 and anti-IL-1β Canakinumab but also Gevokizumab, LY2189102 and P2D7KK, offer valid alternatives to target IL-1. Although less thoroughly investigated, an involvement of IL-18 in the development of cutaneous inflammatory disorders is also suspected. The present review describes the role of IL-1 in diseases with skin involvement and gives an overview of the relevant studies discussing the therapeutic potential of modulating the secretion and activity of IL-1 and IL-18 in such diseases.
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Affiliation(s)
- Gabriele Fenini
- Department of Dermatology, University Hospital ZurichZurich, Switzerland
| | - Emmanuel Contassot
- Department of Dermatology, University Hospital ZurichZurich, Switzerland
| | - Lars E French
- Department of Dermatology, University Hospital ZurichZurich, Switzerland
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SAPHO, autophagy, IL-1, FoxO1, and Propionibacterium (Cutibacterium) acnes. Joint Bone Spine 2017; 85:171-176. [PMID: 28499891 DOI: 10.1016/j.jbspin.2017.04.010] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Accepted: 04/05/2017] [Indexed: 02/06/2023]
Abstract
Overt infection by Propionibacterium acnes is lacking in many SAPHO syndromes, and antibiotics have only a transient and incomplete effect, either in SAPHO syndrome or acne. As several auto-inflammatory bone disorders sharing overproduction of IL-1β can mimic SAPHO, this syndrome could partly depend on genetically encoded overproduction of IL-1β. However, cyclic intracellular infections, mostly by P. acnes, can contribute to the enhanced IL-1β release by some skin cells, and probably by bone cells. P. acnes is indeed a powerful trigger of NLRP3-inflammasome activation and IL-1β, leading to osteitis and enhanced mesenchymal cells differentiation in osteoblasts. Recent advances in the understanding of acne suggest that first steps of this disorder are not driven by P. acnes, but by a relative deficiency of FoxO1 within the nucleus of sebaceous cells. A similar defect of FoXO1 in bone cells should also be sought in SAPHO, since repression of FoxO1 gene is found in lesional psoriasis skin, and is associated with an increased number of osteoblasts and high bone mass in mice. FoxO1 selectively promotes IL-1β production, so that its downregulation could help some P. acnes t escape innate immunity and persist in a latent state in bone cells, including mesenchymal stem cells. However, P. acnes itself possibly contributes to FoxO1 downregulation, like H. pylori infection which induces nuclear inactivation of FoxO1 in human gastric cells to slow down autophagic clearance. As bisphosphonates, which often improve SAPHO syndromes, enhance autophagy, it may be worth testing whether their combination with antibiotics is synergistic in SAPHO syndromes.
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Abstract
SAPHO syndrome (synovitis, acne, pustulosis, hyperostosis, and osteitis) is a rare autoimmune disease which, due to its clinical presentation and symptoms, is often misdiagnosed and unrecognized. Its main features are prominent inflammatory cutaneous and articular manifestations. Treatments with immunosuppressive drugs have been used for the management of SAPHO with variable results. To date, the use of anti-TNF-α agents has proved to be an effective alternative to conventional treatment for unresponsive or refractory SAPHO cases. TNF-α is a pro-inflammatory cytokine and pivotal regulator of other cytokines, including IL-1 β, IL-6, and IL-8, involved in inflammation, acute-phase response induction, and chemotaxis. IL-1 inhibition strategies with anakinra have shown efficacy as first and second lines of treatment. In this review, we will describe the main characteristics of biological drugs currently used for SAPHO syndrome. We also describe some of the promising therapeutic effects of ustekinumab, an antibody against the p40 subunit of IL-12 and IL-23, after failure of multiple drugs including anti-TNF-α and anakinra. We discuss the use and impact of the new anti-IL-1 antagonists involved in the IL-17 blockade, in particular for the most difficult-to-treat SAPHO cases.
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Oranges T, Insalaco A, Diociaiuti A, Carnevale C, Strippoli R, Zambruno G, Tomà P, El Hachem M. Severe osteoarticular involvement in isotretinoin-triggered acne fulminans: two cases successfully treated with anakinra. J Eur Acad Dermatol Venereol 2016; 31:e277-e279. [DOI: 10.1111/jdv.14022] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- T. Oranges
- Department of Dermatology; Pisa University; Pisa Italy
| | - A. Insalaco
- Division of Rheumatology; Bambino Gesu Children's Hospital; IRCCS; Rome Italy
| | - A. Diociaiuti
- Division of Dermatology; Bambino Gesù Children's Hospital; IRCCS; Rome Italy
| | - C. Carnevale
- Division of Dermatology; Bambino Gesù Children's Hospital; IRCCS; Rome Italy
| | - R. Strippoli
- Department of Cellular Biotechnologies and Hematology; Section of Molecular Genetics; Sapienza University; Rome Italy
| | - G. Zambruno
- Division of Dermatology; Bambino Gesù Children's Hospital; IRCCS; Rome Italy
| | - P. Tomà
- Department of Imaging; Bambino Gesù Children's Hospital; IRCCS; Rome Italy
| | - M. El Hachem
- Division of Dermatology; Bambino Gesù Children's Hospital; IRCCS; Rome Italy
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35
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SAPHO Syndrome: Current Developments and Approaches to Clinical Treatment. Curr Rheumatol Rep 2016. [PMID: 27108452 DOI: 10.1007/s11926-016-0583-y.] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/29/2022]
Abstract
SAPHO syndrome (synovitis, acne, pustulosis, hyperostosis, and osteitis) is a rare autoimmune disease which, due to its clinical presentation and symptoms, is often misdiagnosed and unrecognized. Its main features are prominent inflammatory cutaneous and articular manifestations. Treatments with immunosuppressive drugs have been used for the management of SAPHO with variable results. To date, the use of anti-TNF-α agents has proved to be an effective alternative to conventional treatment for unresponsive or refractory SAPHO cases. TNF-α is a pro-inflammatory cytokine and pivotal regulator of other cytokines, including IL-1 β, IL-6, and IL-8, involved in inflammation, acute-phase response induction, and chemotaxis. IL-1 inhibition strategies with anakinra have shown efficacy as first and second lines of treatment. In this review, we will describe the main characteristics of biological drugs currently used for SAPHO syndrome. We also describe some of the promising therapeutic effects of ustekinumab, an antibody against the p40 subunit of IL-12 and IL-23, after failure of multiple drugs including anti-TNF-α and anakinra. We discuss the use and impact of the new anti-IL-1 antagonists involved in the IL-17 blockade, in particular for the most difficult-to-treat SAPHO cases.
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36
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Affiliation(s)
- Matteo Colina
- Rheumatology Service, Section of Internal Medicine, Department of Medicine and Oncology, Ospedale "Santa Maria della Scaletta," Via Montericco 4, Imola 40026, Italy.
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Sanna M, Firinu D, Manconi PE, Pisanu M, Murgia G, Piras V, Castagnola M, Messana I, del Giacco SR, Cabras T. The salivary proteome profile in patients affected by SAPHO syndrome characterized by a top-down RP-HPLC-ESI-MS platform. MOLECULAR BIOSYSTEMS 2016; 11:1552-62. [PMID: 25671558 DOI: 10.1039/c4mb00719k] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
SAPHO syndrome is a rare and often unrecognized disease with prominent inflammatory cutaneous and articular symptoms characterized by musculoskeletal manifestations (synovitis, hyperostosis, osteomyelitis) associated with dermatological conditions (severe acne and pustulosis). The acidic soluble fraction of whole saliva from 10 adult women affected by SAPHO syndrome and from a group of 28 healthy women was analysed by RP-HPLC-ESI-MS with the aim of discovering salivary biomarkers of the disorder. The levels of the oral proteins and peptides were correlated with clinical data. The following proteins showed a significant decreased concentration in saliva of SAPHO subjects with respect to controls: cystatin S1 and SN, histatins, the major acidic PRPs, P-C and P-B peptides. The cystatin SN abundance lowered according to the disease duration and histatins showed positive correlations with the C reactive protein. Statistical analysis performed excluding one patient with a different pattern of salivary proteins/peptides highlighted a positive relationship between cystatin S1, histatins 3, histatin 5, and the neutrophil count. Moreover, histatin 3 correlated positively with the total white cell count and negatively with the erythrocyte sedimentation rate. Levels and frequency of S100A12 protein showed a trend to increase in SAPHO patients. The high expression of this pro-inflammatory protein is probably related to the inflammatory response and to the altered neutrophil responses to functional stimuli that characterize SAPHO syndrome suggesting a possible application as a salivary biomarker.
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Affiliation(s)
- Monica Sanna
- Department of Life and Environmental Sciences, Biomedical section, University of Cagliari, Monserrato Campus, 09042 Monserrato, CA, Italy.
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The SAPHO syndrome revisited with an emphasis on spinal manifestations. Skeletal Radiol 2015; 44:9-24. [PMID: 25331355 DOI: 10.1007/s00256-014-2025-0] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2014] [Revised: 09/17/2014] [Accepted: 09/28/2014] [Indexed: 02/02/2023]
Abstract
The synovitis, acne, pustulosis, hyperostosis, and osteitis (SAPHO) syndrome includes a group of chronic, relapsing, inflammatory musculoskeletal disorders with similar manifestations, in particular synovitis, hyperostosis, and osteitis, which may or may not be associated with neutrophilic skin eruptions such as palmoplantar pustulosis and acne conglobata. The syndrome occurs at any age, can involve any skeletal site, and its imaging appearances are variable, depending on the stage/age of the lesion and imaging method. The diagnosis is difficult if there is no skin disease. Awareness of the imaging appearances, especially in the spine, may help the radiologist in avoiding misdiagnosis (e.g., infection, tumor) and unnecessary invasive procedures, while facilitating early diagnosis and selection of an effective treatment. In this article, we provide an overview of the radiological appearances of SAPHO syndrome, focusing on the magnetic resonance imaging findings of vertebral involvement, and present relevant clinical and pathological features that assist early diagnosis.
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Dinarello CA. An expanding role for interleukin-1 blockade from gout to cancer. Mol Med 2014; 20 Suppl 1:S43-58. [PMID: 25549233 PMCID: PMC4374514 DOI: 10.2119/molmed.2014.00232] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2014] [Accepted: 11/17/2014] [Indexed: 01/08/2023] Open
Abstract
There is an expanding role for interleukin (IL)-1 in diseases from gout to cancer. More than any other cytokine family, the IL-1 family is closely linked to innate inflammatory and immune responses. This linkage is because the cytoplasmic segment of all members of the IL-1 family of receptors contains a domain, which is highly homologous to the cytoplasmic domains of all toll-like receptors (TLRs). This domain, termed "toll IL-1 receptor (TIR) domain," signals as does the IL-1 receptors; therefore, inflammation due to the TLR and the IL-1 families is nearly the same. Fundamental responses such as the induction of cyclo-oxygenase type 2, increased surface expression of cellular adhesion molecules and increased gene expression of a broad number of inflammatory molecules characterizes IL-1 signal transduction as it does for TLR agonists. IL-1β is the most studied member of the IL-1 family because of its role in mediating autoinflammatory disease. However, a role for IL-1α in disease is being validated because of the availability of a neutralizing monoclonal antibody to human IL-1α. There are presently three approved therapies for blocking IL-1 activity. Anakinra is a recombinant form of the naturally occurring IL-1 receptor antagonist, which binds to the IL-1 receptor and prevents the binding of IL-1β as well as IL-1α. Rilonacept is a soluble decoy receptor that neutralizes primarily IL-1β but also IL-1α. Canakinumab is a human monoclonal antibody that neutralizes only IL-1β. Thus, a causal or significant contributing role can be established for IL-1β and IL-1α in human disease.
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Affiliation(s)
- Charles Anthony Dinarello
- Department of Medicine, Division of Infectious Diseases, University of Colorado Denver, Aurora, Colorado, United States of America; and Department of Medicine, Radboud University, Nijmegen, the Netherlands
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Abourazzak FE, Hachimi H, Kadi N, Berrada K, Tizniti S, Harzy T. Etanercept in the treatment of SAPHO syndrome: Which place? Eur J Rheumatol 2014; 1:125-128. [PMID: 27708894 DOI: 10.5152/eurjrheumatol.2014.037] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2014] [Accepted: 06/29/2014] [Indexed: 02/05/2023] Open
Abstract
Synovitis, acne, pustulosis, hyperostosis, and osteitis syndrome (SAPHO) is a rare disease combining skin, bone, and joint manifestations. Its treatment remains a debated issue in the absence of a valid therapeutic strategy. The experience with tumor necrosis factor alpha (TNF alpha)-blocking agents is still small but encouraging. This therapy is reserved for refractory cases. The most commonly used agent is infliximab. Only few cases treated by etanercept have been reported in the literature. We report a new case treated by this biologic therapy and discuss its place in the treatment of SAPHO syndrome. A 30-year-old male, with a history of left clavicular osteitis that required surgical bone biopsy to rule out infection and malignancy, was admitted to the rheumatology department because of recurrent anterior chest pain, lower limb arthralgia, and sacroiliac pain. Laboratory findings revealed an inflammatory syndrome. Conventional radiography and computed tomography (CT) scan of the sternocostoclavicular region showed sclerosis and hyperostosis of the left clavicle. Right sacroiliitis was diagnosed based on the radiographic findings. Moreover, the patient reported palmoplantar pustulosis, thereby strengthening the diagnosis of SAPHO syndrome. As conventional treatment based on methotrexate, corticosteroids, and zoledronic acid was not effective, etanercept was initiated with good and rapid clinical and biological improvement. The diagnosis and treatment of SAPHO syndrome are challenging due to the heterogeneity of symptoms and unknown pathogenesis. Etanercept can be an effective therapy, especially in refractory cases. Further studies are needed in order to establish a therapeutic strategy.
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Affiliation(s)
| | - Hicham Hachimi
- Department of Rheumatology, Hassan II University Hospital, Fez, Morocco
| | - Nadira Kadi
- Department of Rheumatology, Hassan II University Hospital, Fez, Morocco
| | - Khadija Berrada
- Department of Rheumatology, Hassan II University Hospital, Fez, Morocco
| | - Siham Tizniti
- Department of Radiology, Hassan II University Hospital, Fez, Morocco
| | - Taoufik Harzy
- Department of Rheumatology, Hassan II University Hospital, Fez, Morocco
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Scianaro R, Insalaco A, Bracci Laudiero L, De Vito R, Pezzullo M, Teti A, De Benedetti F, Prencipe G. Deregulation of the IL-1β axis in chronic recurrent multifocal osteomyelitis. Pediatr Rheumatol Online J 2014; 12:30. [PMID: 25061439 PMCID: PMC4109750 DOI: 10.1186/1546-0096-12-30] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2013] [Accepted: 07/03/2014] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND This study aims to investigate the inflammasome response in peripheral blood mononuclear cells (PBMCs) and the expression of inflammasome components in bone biopsies from patients with chronic recurrent multifocal osteomyelitis (CRMO). METHODS The expression of inflammasome components mRNAs was evaluated in PBMCs isolated from 15 CRMO patients and 13 healthy controls by quantitative real-time PCR. The Interleukin (IL)-1β released in the medium of PBMC cultures after treatment with lipopolysaccharides (LPS) alone or LPS and ATP was measured by ELISA. Immunohistochemical staining for Apoptosis-associated Speck-like protein (ASC), caspase-1 (CASP-1), Nod-like receptor protein-3 (NLRP3) and IL-1β expression was performed in bone biopsies from CRMO patients. RESULTS mRNA levels of ASC, CASP-1 and IL-1β were significantly higher in freshly isolated PBMCs from CRMO patients in active disease than in healthy controls. CASP-1 and IL-1β transcript levels were significantly higher also in PBMCs from CRMO patients in remission compared to healthy controls. PBMCs from CRMO patients in active disease stimulated in vitro with LPS showed a significant increase in IL-1β release compared to healthy control cells. Immunohistochemistry staining of bone tissue revealed the expression of inflammasome components in CRMO osteoclasts. CONCLUSIONS Our data suggest that an abnormal regulation of IL-1β axis may be involved in CRMO pathogenesis.
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Affiliation(s)
- Roberta Scianaro
- Rheumatology Unit, Bambino Gesù Children’s Hospital, Rome, Italy
| | | | | | - Rita De Vito
- Division of Pathology, Bambino Gesù Children’s Hospital, Rome, Italy
| | - Marco Pezzullo
- Core Facilities, Bambino Gesù Children’s Hospital, Rome, Italy
| | - Anna Teti
- Department of Biotechnological and Applied Clinical Sciences, University of L’Aquila, L’Aquila, Italy
| | | | - Giusi Prencipe
- Rheumatology Unit, Bambino Gesù Children’s Hospital, Rome, Italy
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Firinu D, Barca MP, Lorrai MM, Perra S, Cabras S, Muggianu E, Di Martino ML, Manconi PE, Del Giacco SR. TH17 cells are increased in the peripheral blood of patients with SAPHO syndrome. Autoimmunity 2014; 47:389-94. [PMID: 24720503 DOI: 10.3109/08916934.2014.906582] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
To assess whether the immune derangement previously observed in SAPHO syndrome could be linked to variations in blood TH1, TH2 or TH17 lymphocytes frequency. Seven SAPHO patients with a protracted course of the disease were studied ex-vivo for intracellular cytokines production by means of flow-cytometry and compared with matched groups of Psoriatic Arthritis patients and healthy controls. The Kruskal-Wallis test on the median of the three categories showed that there is a significant association between the TH17 levels and the category (p value = 0.02474). The mean and variance for the proportion of IL-17 producing CD4+ cells were compared between groups showing significant differences between SAPHO versus PsA subgroup (p = 0.05) and SAPHO versus healthy controls (p = 0.008). Interestingly, activation of TH17 axis, but not of TH1 and TH2, has been found, and can be observed both in patients with different activity of the disease or treated with different drugs. The TH17 increase in peripheral blood of our SAPHO subjects resembles the one recently found in patients with different AIDs. Novel therapeutic options in these patients may therefore include IL-17 blockade.
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Affiliation(s)
- Davide Firinu
- Unit of Internal Medicine, Allergy and Clinical Immunology, Department of Medical Sciences "M. Aresu", University of Cagliari , Monserrato , Italy
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Affiliation(s)
- Matteo Colina
- Rheumatology Service, Section of Internal Medicine, Department of Medicine, Ospedale "Santa Maria della Scaletta" , Bologna , Italy
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Inflammasome-independent IL-1β mediates autoinflammatory disease in Pstpip2-deficient mice. Proc Natl Acad Sci U S A 2014; 111:1072-7. [PMID: 24395802 DOI: 10.1073/pnas.1318685111] [Citation(s) in RCA: 89] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Chronic recurrent multifocal osteomyelitis (CRMO) is a human autoinflammatory disorder that primarily affects bone. Missense mutation (L98P) of proline-serine-threonine phosphatase-interacting protein 2 (Pstpip2) in mice leads to a disease that is phenotypically similar to CRMO called chronic multifocal osteomyelitis (cmo). Here we show that deficiency of IL-1RI in cmo mice resulted in a significant reduction in the time to onset of disease as well as the degree of bone pathology. Additionally, the proinflammatory cytokine IL-1β, but not IL-1α, played a critical role in the pathology observed in cmo mice. In contrast, disease in cmo mice was found to be independent of the nucleotide-binding domain, leucine-rich repeat-containing family, pyrin domain-containing 3 (NLRP3) inflammasome as well as caspase-1. Neutrophils, but not bone marrow-derived macrophages, from cmo mice secreted increased IL-1β in response to ATP, silica, and Pseudomonas aeruginosa compared with neutrophils from WT mice. This aberrant neutrophil response was sensitive to inhibition by serine protease inhibitors. These results demonstrate an inflammasome-independent role for IL-1β in disease progression of cmo and implicate neutrophils and neutrophil serine proteases in disease pathogenesis. These data provide a rationale for directly targeting IL-1RI or IL-1β as a therapeutic strategy in CRMO.
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Abstract
IL-1 is a master cytokine of local and systemic inflammation. With the availability of specific IL-1 targeting therapies, a broadening list of diseases has revealed the pathologic role of IL-1-mediated inflammation. Although IL-1, either IL-1α or IL-1β, was administered to patients in order to improve bone marrow function or increase host immune responses to cancer, these patients experienced unacceptable toxicity with fever, anorexia, myalgias, arthralgias, fatigue, gastrointestinal upset and sleep disturbances; frank hypotension occurred. Thus it was not unexpected that specific pharmacological blockade of IL-1 activity in inflammatory diseases would be beneficial. Monotherapy blocking IL-1 activity in a broad spectrum of inflammatory syndromes results in a rapid and sustained reduction in disease severity. In common conditions such as heart failure and gout arthritis, IL-1 blockade can be effective therapy. Three IL-1blockers have been approved: the IL-1 receptor antagonist, anakinra, blocks the IL-1 receptor and therefore reduces the activity of IL-1α and IL-1β. A soluble decoy receptor, rilonacept, and a neutralizing monoclonal anti-interleukin-1β antibody, canakinumab, are also approved. A monoclonal antibody directed against the IL-1 receptor and a neutralizing anti-IL-1α are in clinical trials. By specifically blocking IL-1, we have learned a great deal about the role of this cytokine in inflammation but equally important, reducing IL-1 activity has lifted the burden of disease for many patients.
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Key Words
- AOSD
- Autoimmune
- Autoinflammatory
- C-reactive protein
- CAPS
- CRP
- DIRA
- FCAS
- FMF
- HIDS
- Inflammation
- NLRP12
- NLRP3
- NOMID
- PAPA
- PASH
- PFAPA
- SAPHO
- SJIA
- TNF receptor associated periodic syndrome
- TRAPS
- adult onset Still's disease
- cryopyrin autoinflammatory periodic syndromes
- deficiency of IL-1Ra
- familial Mediterranean fever
- familial cold autoinflammatory syndrome
- hyper IgD syndrome
- neonatal onset multi-inflammatory diseases
- nucleotide-binding domain and leucine-rich repeat pyrin containing 12
- nucleotide-binding domain and leucine-rich repeat pyrin containing 3
- periodic fever, aphthous stomatitis, pharyngitis, and adenitis
- pyoderma-gangrenosum, acne, and suppurativa hidradenitis
- pyogenic arthritis, pyoderma gangrenosum, and acne
- synovitis, acne, pustulosis, hyperostosis and osteitis
- systemic-onset juvenile idiopathic arthritis
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Affiliation(s)
- Charles A Dinarello
- Department of Medicine, University of Colorado Denver, Aurora, CO, United States; Department of Medicine, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Jos W M van der Meer
- Department of Medicine, Radboud University Medical Center, Nijmegen, The Netherlands
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Hong JB, Prucha H, Melnik B, Ziai M, Ring J, Chen W. [Uncommon acne-associated syndromes and their significance in understanding the pathogenesis of acne]. DER HAUTARZT 2013; 64:274-9. [PMID: 23525534 DOI: 10.1007/s00105-012-2460-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Acne is an intriguing model for the study of interactions between hormones, innate immunity, inflammation and wound healing (scarring). The manifestations and involvement of acne in different systemic diseases and some rare syndromes demonstrate its multifaceted nature. Synovitis-Acne-Pustulosis-Hyperostosis-Osteitis (SAPHO) and Pyogenic Arthritis-Pyoderma gangrenosum-Acne (PAPA) syndromes, both regarded as autoinflammatory diseases, highlight the attributes of inflammation in acne. While SAPHO syndrome can be used to explore the pathogenic role of Propionibacterium acnes in acne, PAPA syndrome and Apert syndrome can help understand the genetic influence on acne. The genetic defects in the gain-of-function of FGFR2 mutations in Apert syndrome and acne nevus of Munro lend further support to the hypothesis that the interaction of forkhead box class O (FoxOs)-mediated transcriptional regulation with androgen receptor transactivation and insulin/insulin like growth factor-1(IGF-1)-signaling is crucial in acne pathogenesis. Novel biologics, such as tumor necrosis factor (TNF) blockers and IL-1 inhibitors, appear promising in opposing the inflammation associated with SAPHO and PAPA syndromes, but it remains to seen if they can also improve severe acne particularly in the long term.
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Affiliation(s)
- J-B Hong
- Klinik für Dermatologie, National Taiwan University Hospital, Taipei
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Federici S, Martini A, Gattorno M. The Central Role of Anti-IL-1 Blockade in the Treatment of Monogenic and Multi-Factorial Autoinflammatory Diseases. Front Immunol 2013; 4:351. [PMID: 24198817 PMCID: PMC3814084 DOI: 10.3389/fimmu.2013.00351] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2013] [Accepted: 10/14/2013] [Indexed: 12/13/2022] Open
Abstract
Inherited autoinflammatory diseases are secondary to mutations of proteins playing a pivotal role in the regulation of the innate immunity leading to seemingly unprovoked episodes of inflammation. The understanding of the molecular pathways involved in these disorders has shed new lights on the pattern of activation and maintenance of the inflammatory response and disclosed new molecular therapeutic targets. Cryopyrin-associated periodic syndrome (CAPS) represents the prototype of an autoinflammatory disease. The study of the pathophysiological consequence of mutations in the cryopyrin gene (NLRP3) allowed the identification of intracellular pathways responsible for the activation and secretion of the potent inflammatory cytokine interleukin-1β (IL-1β). It became clear that several multi-factorial inflammatory conditions display a number of pathogenic and clinical similarities with inherited autoinflammatory diseases. The dramatic effect of interleukin-1 (IL-1) blockade in CAPS opened new perspectives for the treatment of other inherited and multi-factorial autoinflammatory disorders. Several IL-1 blockers are now available on the market. In this review we outline the more recent novelties in the treatment with different IL-1 blockers in inherited and multi-factorial autoinflammatory diseases.
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Affiliation(s)
- Silvia Federici
- 2nd Division of Pediatrics, G. Gaslini Institute , Genoa , Italy
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Yamamoto T. Pustulotic arthro-osteitis associated with palmoplantar pustulosis. J Dermatol 2013; 40:857-63. [PMID: 24127744 DOI: 10.1111/1346-8138.12272] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2013] [Accepted: 07/31/2013] [Indexed: 01/08/2023]
Abstract
Palmoplantar pustulosis (PPP) is a chronic inflammatory disorder characterized by sterile pustules predominantly involving the palms and soles of middle-aged women. PPP frequently develops or exacerbates following focal infections, such as tonsillitis, odontogenic infection and sinusitis, either with or without arthralgia and/or extra-palmoplantar lesions. Pustulotic arthro-osteitis (PAO) is a joint comorbidity of PPP, most often affecting the anterior chest wall. PAO is sometimes regarded as the same entity as synovitis, acne, pustulosis, hyperostosis and osteitis (SAPHO) syndrome, and may be a subtype or incomplete type of SAPHO syndrome; however, there are several differences. In Japanese patients, PPP with PAO is frequently seen, whereas SAPHO syndrome in the true meaning is rare. A difference of incidence depending on race suggests that different genetic backgrounds may be responsible for susceptibility to these disorders. Bacterial infection, especially Propionibacterium acnes, is suggested to play an important role in the pathogenesis of SAPHO syndrome. P. acnes is responsible for acne, however, bacterium is unassociated with PPP skin lesions which are characterized by sterile pustules. On the other hand, PAO is frequently triggered by focal infection, and treatment of focal infection results in dramatic effects on the release of joint pain. This paper reviews current insights into the clinicopathophysiology of PAO, and discusses its possible mechanisms in comparison with SAPHO syndrome.
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Affiliation(s)
- Toshiyuki Yamamoto
- Department of Dermatology, Fukushima Medical University, Fukushima, Japan
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Abstract
This article provides a new categorization of inflammatory pustular dermatoses in the context of recent genetic and biological insights. Monogenic diseases with pustular phenotypes are discussed, including deficiency of interleukin 1 receptor antagonist, deficiency of the interleukin 36 receptor antagonist, CARD14-associated pustular psoriasis, and pyogenic arthritis, pyoderma gangrenosum, and acne. How these new genetic advancements may inform how previously described pustular diseases are viewed, including pustular psoriasis and its clinical variants, with a focus on historical classification by clinical phenotype, is also discussed.
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Affiliation(s)
- Haley B Naik
- Dermatology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Building 10, Room 12N238, 10 Center Drive, MSC 1908, Bethesda, MD 20892-1908, USA
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