PMID- 32422945 OWN - NLM STAT- MEDLINE DCOM- 20210211 LR - 20240328 IS - 1422-0067 (Electronic) IS - 1422-0067 (Linking) VI - 21 IP - 10 DP - 2020 May 14 TI - Autoantibody and Cytokine Profiles during Treatment with Belimumab in Patients with Systemic Lupus Erythematosus. LID - 10.3390/ijms21103463 [doi] LID - 3463 AB - We investigated whether belimumab treatment impacts on levels of autoantibodies and cytokines of interest in systemic lupus erythematosus (SLE). Longitudinally collected serum samples from 78 belimumab-treated Swedish SLE patients were analysed. Serum cytokine levels were determined using Luminex xMAP technology, and nuclear antigen autoantibody specificities using addressable laser bead immunoassay. In patients with detectable levels at baseline, interferon (IFN)-alpha2 levels were lower at month 6 (median; interquartile range (IQR): 8.9; 1.5-54.9 pg/mL) versus baseline (28.4; 20.9-100.3 pg/mL; p = 0.043). Interleukin (IL)-6 (baseline: 7.1; 2.9-16.1 pg/mL) decreased from month 6 (0.5; 0.5-6.3 pg/mL; p = 0.018) and throughout a 24 month follow-up. IL-10 (baseline: 12.6; 2.8-29.7 pg/mL) showed more rapid decreases from month 3 (1.8; 0.6-9.1 pg/mL; p = 0.003). Levels of anti-dsDNA (p < 0.001), anti-Smith antigen (Sm) (p = 0.002), anti-U1 small nuclear ribonucleoprotein (U1RNP) (p < 0.001), anti-Sm-U1RNP complex (p = 0.028), and anti-ribosomal P (p = 0.012) antibodies decreased from month 3 and remained decreased. Anti-Sm positivity at baseline was associated with higher probability and/or shorter time to achieve sustained SLE responder index-4 response (hazard ratio (HR): 2.52; 95% CI: 1.20-5.29; p = 0.015), independently of other factors. Decline of IL-6 levels through month 3 was greater in responders. In summary, belimumab treatment lowered IFN-alpha2, IL-6, and IL-10 levels, as well as levels of multiple autoantibodies, however after different time spans. Notably, anti-Sm positivity and early decline in IL-6 levels were associated with favorable treatment outcome. FAU - Parodis, Ioannis AU - Parodis I AD - Division of Rheumatology, Department of Medicine, Karolinska Institutet, SE-171 76 Stockholm, Sweden. AD - Rheumatology, Karolinska University Hospital, SE-171 76 Stockholm, Sweden. FAU - Akerstrom, Emil AU - Akerstrom E AD - Division of Rheumatology, Department of Medicine, Karolinska Institutet, SE-171 76 Stockholm, Sweden. AD - Rheumatology, Karolinska University Hospital, SE-171 76 Stockholm, Sweden. FAU - Sjowall, Christopher AU - Sjowall C AD - Rheumatology/Division of Inflammation and Infection, Department of Biomedical and Clinical Sciences, Linkoping University, SE-581 85 Linkoping, Sweden. FAU - Sohrabian, Azita AU - Sohrabian A AD - Department of Immunology, Genetics and Pathology, Uppsala University, SE-751 85 Uppsala, Sweden. FAU - Jonsen, Andreas AU - Jonsen A AD - Rheumatology, Department of Clinical Sciences Lund, Lund University, Skane University Hospital, SE-222 42 Lund, Sweden. FAU - Gomez, Alvaro AU - Gomez A AD - Division of Rheumatology, Department of Medicine, Karolinska Institutet, SE-171 76 Stockholm, Sweden. AD - Rheumatology, Karolinska University Hospital, SE-171 76 Stockholm, Sweden. FAU - Frodlund, Martina AU - Frodlund M AD - Rheumatology/Division of Inflammation and Infection, Department of Biomedical and Clinical Sciences, Linkoping University, SE-581 85 Linkoping, Sweden. FAU - Zickert, Agneta AU - Zickert A AD - Division of Rheumatology, Department of Medicine, Karolinska Institutet, SE-171 76 Stockholm, Sweden. AD - Rheumatology, Karolinska University Hospital, SE-171 76 Stockholm, Sweden. FAU - Bengtsson, Anders A AU - Bengtsson AA AD - Rheumatology, Department of Clinical Sciences Lund, Lund University, Skane University Hospital, SE-222 42 Lund, Sweden. FAU - Ronnelid, Johan AU - Ronnelid J AD - Department of Immunology, Genetics and Pathology, Uppsala University, SE-751 85 Uppsala, Sweden. FAU - Gunnarsson, Iva AU - Gunnarsson I AD - Division of Rheumatology, Department of Medicine, Karolinska Institutet, SE-171 76 Stockholm, Sweden. AD - Rheumatology, Karolinska University Hospital, SE-171 76 Stockholm, Sweden. LA - eng GR - -/Vetenskapsradet/ GR - R-859621; R-862161; R-844801/Reumatikerforbundet/ GR - 2018-00250/Stiftelsen Professor Nanna Svartz Fond/ GR - 2019-12/Ulla and Roland Gustafsson Foundation/ GR - -/Stiftelsen Konung Gustaf V:s 80-arsfond/ GR - -/Konung Gustaf V:s och Drottning Victorias Frimurarestiftelse/ GR - -/Region Ostergotland/ GR - -/Stockholms Lans Landsting/ GR - -/Landstinget i Uppsala lan/ GR - -/Region Skane/ GR - -/Alfred Osterlund's Foundation/ GR - -/Medicinska Fakulteten, Lunds Universitet/ GR - -/Greta och Johan Kocks stiftelser/ GR - -/Skane University Hospital/ GR - -/Karolinska Institutet/ GR - -/Karolinska University Hospital/ GR - -/Swedish Society of Medicine/ GR - -/Ingegerd Johansson Donation/ PT - Journal Article DEP - 20200514 PL - Switzerland TA - Int J Mol Sci JT - International journal of molecular sciences JID - 101092791 RN - 0 (Antibodies, Antinuclear) RN - 0 (Antibodies, Monoclonal, Humanized) RN - 0 (Autoantibodies) RN - 0 (Cytokines) RN - 0 (IL10 protein, human) RN - 0 (Interferon alpha-2) RN - 0 (Interleukin-6) RN - 130068-27-8 (Interleukin-10) RN - 73B0K5S26A (belimumab) SB - IM MH - Adult MH - Antibodies, Antinuclear/blood MH - Antibodies, Monoclonal, Humanized/*administration & dosage MH - Autoantibodies/*blood MH - Cytokines/blood MH - Female MH - Humans MH - Interferon alpha-2/blood MH - Interleukin-10/blood MH - Interleukin-6/blood MH - Lupus Erythematosus, Systemic/*blood/*drug therapy/immunology/pathology MH - Male MH - Middle Aged MH - Severity of Illness Index MH - Treatment Outcome PMC - PMC7278961 OTO - NOTNLM OT - B cells OT - autoantibodies OT - autoimmunity OT - biologic therapies OT - cytokines OT - immune complexes OT - systemic lupus erythematosus COIS- The authors declare no conflict of interest. The funders had no role in the design of the study; in the collection, analyses, or interpretation of data; in the writing of the manuscript; or in the decision to publish the results. EDAT- 2020/05/20 06:00 MHDA- 2021/02/12 06:00 PMCR- 2020/05/01 CRDT- 2020/05/20 06:00 PHST- 2020/03/28 00:00 [received] PHST- 2020/05/02 00:00 [revised] PHST- 2020/05/11 00:00 [accepted] PHST- 2020/05/20 06:00 [entrez] PHST- 2020/05/20 06:00 [pubmed] PHST- 2021/02/12 06:00 [medline] PHST- 2020/05/01 00:00 [pmc-release] AID - ijms21103463 [pii] AID - ijms-21-03463 [pii] AID - 10.3390/ijms21103463 [doi] PST - epublish SO - Int J Mol Sci. 2020 May 14;21(10):3463. doi: 10.3390/ijms21103463.