<?xml version="1.0" encoding="UTF-8"?><?xml-stylesheet type="text/xsl" href="static/style.xsl"?><OAI-PMH xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd"><responseDate>2026-04-14T03:09:20Z</responseDate><request verb="GetRecord" identifier="oai:www.recercat.cat:11351/9458" metadataPrefix="oai_dc">https://recercat.cat/oai/request</request><GetRecord><record><header><identifier>oai:recercat.cat:11351/9458</identifier><datestamp>2025-10-24T10:39:47Z</datestamp><setSpec>com_2072_378070</setSpec><setSpec>com_2072_378040</setSpec><setSpec>col_2072_378092</setSpec></header><metadata><oai_dc:dc xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:doc="http://www.lyncode.com/xoai" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
   <dc:title>Anti-U11/U12 Antibodies as a Rare but Important Biomarker in Patients with Systemic Sclerosis: A Narrative Review</dc:title>
   <dc:creator>Fritzler, Marvin</dc:creator>
   <dc:creator>Bentow, Chelsea</dc:creator>
   <dc:creator>Beretta, Lorenzo</dc:creator>
   <dc:creator>Palterer, Boaz</dc:creator>
   <dc:creator>Perurena-Prieto, Janire</dc:creator>
   <dc:creator>Sanz Martínez, María Teresa</dc:creator>
   <dc:creator>Guillén-Del-Castillo, Alfredo</dc:creator>
   <dc:creator>Marín-Sánchez, Ana</dc:creator>
   <dc:creator>Fonollosa Pla, Vicenç</dc:creator>
   <dc:creator>Simeón-Aznar , Carmen Pilar</dc:creator>
   <dc:contributor>Institut Català de la Salut</dc:contributor>
   <dc:contributor>[Fritzler MJ] Cumming School of Medicine, University of Calgary, Calgary, AB, Canada. [Bentow C] Research and Development, Werfen, Autoimmunity Headquarters and Technology Center, San Diego, CA, USA. [Beretta L] Scleroderma Unit and (Referral) Center for Systemic Autoimmune Diseases, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico di Milan, Milano, Italy. [Palterer B] Department of Experimental and Clinical Medicine, University of Florence, Firenze, Italy. [Perurena-Prieto J, Sanz-Martínez MT, Marín A] Servei d’Immunologia, Vall d’Hebron Hospital Universitari, Barcelona, Spain. Universitat Autònoma de Barcelona, Bellaterra, Spain. [Guillen-Del-Castillo A, Fonollosa-Pla V, Simeón-Aznar CP] Àrea de Malalties Autoimmunes Sistèmiques, Unitat d’Inflamació i Autoimmunitat, Servei de Medicina Interna, Vall d’Hebron Hospital Universitari, Barcelona, Spain</dc:contributor>
   <dc:contributor>Vall d'Hebron Barcelona Hospital Campus</dc:contributor>
   <dc:subject>Marcadors bioquímics</dc:subject>
   <dc:subject>Factors antinuclears</dc:subject>
   <dc:subject>Esclerosi sistemàtica progressiva - Diagnòstic</dc:subject>
   <dc:subject>CHEMICALS AND DRUGS::Biological Factors::Biomarkers</dc:subject>
   <dc:subject>CHEMICALS AND DRUGS::Amino Acids, Peptides, and Proteins::Proteins::Blood Proteins::Immunoproteins::Immunoglobulins::Antibodies::Autoantibodies::Antibodies, Antinuclear</dc:subject>
   <dc:subject>DISEASES::Skin and Connective Tissue Diseases::Connective Tissue Diseases::Scleroderma, Systemic</dc:subject>
   <dc:subject>Other subheadings::Other subheadings::/diagnosis</dc:subject>
   <dc:subject>COMPUESTOS QUÍMICOS Y DROGAS::factores biológicos::biomarcadores</dc:subject>
   <dc:subject>COMPUESTOS QUÍMICOS Y DROGAS::aminoácidos, péptidos y proteínas::proteínas::proteínas sanguíneas::inmunoproteínas::inmunoglobulinas::anticuerpos::autoanticuerpos::anticuerpos antinucleares</dc:subject>
   <dc:subject>ENFERMEDADES::enfermedades de la piel y tejido conjuntivo::enfermedades del tejido conjuntivo::esclerodermia sistémica</dc:subject>
   <dc:subject>Otros calificadores::Otros calificadores::/diagnóstico</dc:subject>
   <dc:description>Autoantibodies; Interstitial lung disease; Systemic sclerosis</dc:description>
   <dc:description>Autoanticuerpos; Enfermedad pulmonar intersticial; Esclerosis sistémica</dc:description>
   <dc:description>Autoanticossos; Malaltia pulmonar intersticial; Esclerosi sistèmica</dc:description>
   <dc:description>Anti-nuclear (ANA) are present in approximately 90% of systemic sclerosis (SSc) patients and are key biomarkers in supporting the diagnosis and determining the prognosis of this disease. In addition to the classification criteria autoantibodies for SSc [i.e., anti-centromere, anti-topoisomerase I (Scl-70), anti-RNA polymerase III], other autoantibodies have been associated with important SSc phenotypes. Among them, anti-U11/U12 ribonucleoprotein (RNP) antibodies, also known as anti-RNPC-3, were first reported in a patient with SSc, but very little is known about their association and clinical utility. The U11/U12 RNP macromolecular complex consists of several proteins involved in alternative mRNA splicing. More recent studies demonstrated associations of anti-anti-U11/U12 antibodies with SSc and severe pulmonary fibrosis as well as with moderate to severe gastrointestinal dysmotility. Lastly, anti-U11/U12 autoantibodies have been strongly associated with malignancy in SSc patients. Here, we aimed to summarize the knowledge of anti-U11/U12/RNPC-3 antibodies in SSc, including their seroclinical associations in a narrative literature review.</dc:description>
   <dc:date>2023-05-04T11:47:45Z</dc:date>
   <dc:date>2023-05-04T11:47:45Z</dc:date>
   <dc:date>2023-03-27</dc:date>
   <dc:type>info:eu-repo/semantics/article</dc:type>
   <dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
   <dc:identifier>Fritzler MJ, Bentow C, Beretta L, Palterer B, Perurena-Prieto J, Sanz-Martínez MT, et al. Anti-U11/U12 Antibodies as a Rare but Important Biomarker in Patients with Systemic Sclerosis: A Narrative Review. Diagnostics. 2023 Mar 27;13(7):1257.</dc:identifier>
   <dc:identifier>2075-4418</dc:identifier>
   <dc:identifier>https://hdl.handle.net/11351/9458</dc:identifier>
   <dc:identifier>10.3390/diagnostics13071257</dc:identifier>
   <dc:identifier>37046475</dc:identifier>
   <dc:identifier>http://hdl.handle.net/11351/9458</dc:identifier>
   <dc:language>eng</dc:language>
   <dc:relation>Diagnostics;13(7)</dc:relation>
   <dc:relation>https://doi.org/10.3390/diagnostics13071257</dc:relation>
   <dc:rights>Attribution 4.0 International</dc:rights>
   <dc:rights>http://creativecommons.org/licenses/by/4.0/</dc:rights>
   <dc:rights>info:eu-repo/semantics/openAccess</dc:rights>
   <dc:format>application/pdf</dc:format>
   <dc:publisher>MDPI</dc:publisher>
   <dc:source>Scientia</dc:source>
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