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Su X, Chen A, Teng M, Ji W, Zhang Y. Transcriptome-wide association study identifies new susceptibility genes and pathways for spondyloarthritis. J Orthop Surg Res 2023; 18:659. [PMID: 37667381 PMCID: PMC10478464 DOI: 10.1186/s13018-023-04029-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Accepted: 07/19/2023] [Indexed: 09/06/2023] Open
Abstract
BACKGROUND Spondyloarthritis (SpA) is a group of multifactorial bone diseases influenced by genetic factors, the environment and lifestyle. However, current studies have found a limited number of SpA-related genes, and the genetic and pathogenic mechanisms of SpA are still unclear. METHODS A tissue-specific transcriptome-wide association study (TWAS) of SpA was performed using GWAS (including 3966 SpA patients and 448,298 controls) summary data and gene expression weights of whole blood and skeletal muscle. The SpA-associated genes identified by TWAS were further compared with the differentially expressed genes (DEGs) identified in the SpA gene expression profile acquired from the Gene Expression Omnibus database (GEO, GSE58667). Finally, functional enrichment and annotation analyses of the identified genes were performed. RESULTS The TWAS detected 499 suggestive genes associated with SpA in whole blood and skeletal muscle, such as CTNNAL1 (PSM = 3.04 × 10-2, PWB = 9.58 × 10-3). The gene expression profile of SpA identified 20 candidate genes that overlapped in the TWAS data, such as MCM4 (PTWAS = 1.32 × 10-2, PDEG = 2.75 × 10-2) and KIAA1109 (PTWAS = 3.71 × 10-2, PDEG = 4.67 × 10-2). Enrichment analysis of the genes identified by TWAS identified 93 significant GO terms and 33 KEGG pathways, such as mitochondrion organization (GO: 0007005) and axon guidance (hsa04360). CONCLUSION We identified multiple candidate genes that were genetically related to SpA. Our study may provide novel clues regarding the genetic mechanism, diagnosis, and treatment of SpA.
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Affiliation(s)
- Xiaochen Su
- Department of Orthopaedics of the First Affiliated Hospital, Medical School, Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China
| | - Anfa Chen
- Department of Orthopaedics of the First Affiliated Hospital, Medical School, Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China
| | - Menghao Teng
- Department of Orthopaedics of the First Affiliated Hospital, Medical School, Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China
| | - Wenchen Ji
- Department of Orthopaedics of the First Affiliated Hospital, Medical School, Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China
| | - Yingang Zhang
- Department of Orthopaedics of the First Affiliated Hospital, Medical School, Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China.
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Azuaga AB, Ramírez J, Cañete JD. Psoriatic Arthritis: Pathogenesis and Targeted Therapies. Int J Mol Sci 2023; 24:4901. [PMID: 36902329 PMCID: PMC10003101 DOI: 10.3390/ijms24054901] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Revised: 02/28/2023] [Accepted: 03/01/2023] [Indexed: 03/06/2023] Open
Abstract
Psoriatic arthritis (PsA), a heterogeneous chronic inflammatory immune-mediated disease characterized by musculoskeletal inflammation (arthritis, enthesitis, spondylitis, and dactylitis), generally occurs in patients with psoriasis. PsA is also associated with uveitis and inflammatory bowel disease (Crohn's disease and ulcerative colitis). To capture these manifestations as well as the associated comorbidities, and to recognize their underlining common pathogenesis, the name of psoriatic disease was coined. The pathogenesis of PsA is complex and multifaceted, with an interplay of genetic predisposition, triggering environmental factors, and activation of the innate and adaptive immune system, although autoinflammation has also been implicated. Research has identified several immune-inflammatory pathways defined by cytokines (IL-23/IL-17, TNF), leading to the development of efficacious therapeutic targets. However, heterogeneous responses to these drugs occur in different patients and in the different tissues involved, resulting in a challenge to the global management of the disease. Therefore, more translational research is necessary in order to identify new targets and improve current disease outcomes. Hopefully, this may become a reality through the integration of different omics technologies that allow better understanding of the relevant cellular and molecular players of the different tissues and manifestations of the disease. In this narrative review, we aim to provide an updated overview of the pathophysiology, including the latest findings from multiomics studies, and to describe current targeted therapies.
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Affiliation(s)
- Ana Belén Azuaga
- Rheumatology Department, Hospital Clinic and IDIBAPS of Barcelona, 08036 Barcelona, Spain
| | | | - Juan D. Cañete
- Rheumatology Department, Hospital Clinic and IDIBAPS of Barcelona, 08036 Barcelona, Spain
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Yan D, Gudjonsson JE, Le S, Maverakis E, Plazyo O, Ritchlin C, Scher JU, Singh R, Ward NL, Bell S, Liao W. New Frontiers in Psoriatic Disease Research, Part I: Genetics, Environmental Triggers, Immunology, Pathophysiology, and Precision Medicine. J Invest Dermatol 2021; 141:2112-2122.e3. [PMID: 34303522 PMCID: PMC8384663 DOI: 10.1016/j.jid.2021.02.764] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Revised: 02/23/2021] [Accepted: 02/24/2021] [Indexed: 02/07/2023]
Abstract
Psoriasis is a chronic inflammatory condition characterized by systemic immune dysregulation. Over the past several years, advances in genetics, microbiology, immunology, and mouse models have revealed the complex interplay between the heritable and microenvironmental factors that drive the development of psoriatic inflammation. In the first of this two-part review series, the authors will discuss the newest insights into the pathogenesis of psoriatic disease and highlight how the evolution of these scientific fields has paved the way for a more personalized approach to psoriatic disease treatment.
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Affiliation(s)
- Di Yan
- Ronald O. Perelman Department of Dermatology, NYU Langone Health, New York, New York, USA
| | | | - Stephanie Le
- Department of Dermatology, University of California, Davis, Sacramento, California, USA
| | - Emanual Maverakis
- Department of Dermatology, University of California, Davis, Sacramento, California, USA
| | - Olesya Plazyo
- Department of Dermatology, University of Michigan, Ann Arbor, Michigan, USA
| | - Christopher Ritchlin
- Center for Musculoskeletal Research, Division of Allergy, Immunology and Rheumatology, University of Rochester School of Medicine & Dentistry, Rochester, New York, USA
| | - Jose U Scher
- Department of Medicine, NYU Grossman School of Medicine, NYU Langone Health, New York, New York, USA
| | - Roopesh Singh
- Department of Nutrition, School of Medicine, Case Western Reserve University, Cleveland, Ohio, USA
| | - Nicole L Ward
- Department of Nutrition, School of Medicine, Case Western Reserve University, Cleveland, Ohio, USA; Department of Dermatology, School of Medicine, Case Western Reserve University, Cleveland, Ohio, USA
| | - Stacie Bell
- National Psoriasis Foundation, Portland, Oregon, USA
| | - Wilson Liao
- UCSF Department of Dermatology, University of California San Francisco, San Francisco, California, USA.
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RUNX1-mutated families show phenotype heterogeneity and a somatic mutation profile unique to germline predisposed AML. Blood Adv 2021; 4:1131-1144. [PMID: 32208489 DOI: 10.1182/bloodadvances.2019000901] [Citation(s) in RCA: 90] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Accepted: 01/03/2020] [Indexed: 01/07/2023] Open
Abstract
First reported in 1999, germline runt-related transcription factor 1 (RUNX1) mutations are a well-established cause of familial platelet disorder with predisposition to myeloid malignancy (FPD-MM). We present the clinical phenotypes and genetic mutations detected in 10 novel RUNX1-mutated FPD-MM families. Genomic analyses on these families detected 2 partial gene deletions, 3 novel mutations, and 5 recurrent mutations as the germline RUNX1 alterations leading to FPD-MM. Combining genomic data from the families reported herein with aggregated published data sets resulted in 130 germline RUNX1 families, which allowed us to investigate whether specific germline mutation characteristics (type, location) could explain the large phenotypic heterogeneity between patients with familial platelet disorder and different HMs. Comparing the somatic mutational signatures between the available familial (n = 35) and published sporadic (n = 137) RUNX1-mutated AML patients showed enrichment for somatic mutations affecting the second RUNX1 allele and GATA2. Conversely, we observed a decreased number of somatic mutations affecting NRAS, SRSF2, and DNMT3A and the collective genes associated with CHIP and epigenetic regulation. This is the largest aggregation and analysis of germline RUNX1 mutations performed to date, providing a unique opportunity to examine the factors underlying phenotypic differences and disease progression from FPD to MM.
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Insights into the pathogenesis of psoriatic arthritis from genetic studies. Semin Immunopathol 2021; 43:221-234. [PMID: 33712923 DOI: 10.1007/s00281-021-00843-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Accepted: 01/19/2021] [Indexed: 12/20/2022]
Abstract
Psoriatic arthritis (PsA) is a relatively common inflammatory arthritis, a spondyloarthritis (SpA), that occurs most often in patients with psoriasis, a common immune-mediated inflammatory skin disease. Both psoriasis and PsA are highly heritable. Genetic and recent genomic studies have identified variants associated with psoriasis and PsA, but variants differentiating psoriasis from PsA are few. In this review, we describe recent developments in understanding the genetic burden of PsA, linkage, association and epigenetic studies. Using pathway analysis, we provide further insights into the similarities and differences between PsA and psoriasis, as well as between PsA and other immune-mediated inflammatory diseases, particularly ankylosing spondylitis, another SpA. Environmental factors that may trigger PsA in patients with psoriasis are also reviewed. To further understand the pathogenetic differences between PsA and psoriasis as well as other SpA, larger cohort studies of well-phenotyped subjects with integrated analysis of genomic, epigenomic, transcriptomic, proteomic and metabolomic data using interomic system biology approaches are required.
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Abstract
PURPOSE OF THE REVIEW To provide a general overview and current challenges regarding the genetics of psoriatic disease. With the use of integrative medicine, multiple candidate loci identified to date in psoriatic disease will be annotated, summarized, and visualized. Recent studies reporting differences in genetic architecture between psoriatic arthritis and cutaneous-only psoriasis will be highlighted. RECENT FINDINGS Focusing on functional pathways that connect previously identified genetic variants can increase our understanding of psoriatic diseases. The genetic architecture differs between psoriatic arthritis and cutaneous-only psoriasis with arthritis-specific signals in linkage disequilibrium independent of the published psoriasis signals. Integrative medicine is helpful in understanding cellular mechanisms of psoriatic diseases. Careful selection of the psoriatic disease cohort has translated into mechanistic differences among psoriatic arthritis and cutaneous psoriasis.
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Affiliation(s)
- Sara Rahmati
- Department of Medicine, Faculty of Medicine, Memorial University, St. John's, Newfoundland and Labrador, A1B 3X9, Canada
- Krembil Research Institute, University Health Network, Toronto, Ontario, M5S 1A8, Canada
| | - Lam Tsoi
- Department of Computational Medicine & Bioinformatics, Department of Biostatistics, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Darren O'Rielly
- Department of Medicine, Faculty of Medicine, Memorial University, St. John's, Newfoundland and Labrador, A1B 3X9, Canada
| | - Vinod Chandran
- Department of Medicine, Faculty of Medicine, Memorial University, St. John's, Newfoundland and Labrador, A1B 3X9, Canada
- Krembil Research Institute, University Health Network, Toronto, Ontario, M5S 1A8, Canada
- Institute of Medical Science, University of Toronto, Toronto, Ontario, M5S 1A8, Canada
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, M5S 1A8, Canada
- Department of Medicine, Division of Rheumatology, University of Toronto, Toronto, Ontario, M5S 1A8, Canada
| | - Proton Rahman
- Department of Medicine, Faculty of Medicine, Memorial University, St. John's, Newfoundland and Labrador, A1B 3X9, Canada.
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