Article:El-Zayadi, AA, Jones, EA orcid.org/0000-0001-9365-2283, Churchman, SM orcid.org/0000-0003-0172-3975 et al. (7 more authors) (2017) Interleukin-22 drives the proliferation, migration and osteogenic differentiation of mesenchymal stem cells: a novel cytokine that could contribute to new bone formation in spondyloarthropathies. Rheumatology, 56 (3 ReuseUnless indicated otherwise, fulltext items are protected by copyright with all rights reserved. The copyright exception in section 29 of the Copyright, Designs and Patents Act 1988 allows the making of a single copy solely for the purpose of non-commercial research or private study within the limits of fair dealing. The publisher or other rights-holder may allow further reproduction and re-use of this version -refer to the White Rose Research Online record for this item. Where records identify the publisher as the copyright holder, users can verify any specific terms of use on the publisher's website. TakedownIf you consider content in White Rose Research Online to be in breach of UK law, please notify us by emailing eprints@whiterose.ac.uk including the URL of the record and the reason for the withdrawal request. This is a Conclusion. This work shows that IL-22 is involved in human MSC proliferation/migration in inflammatory environments with MSC osteogenesis occurring only in IFN-/TNF absence. These effects of IL-22 on MSC function is a novel pathway for exploring pathological, post-inflammation osteogenesis in human SpA.

Introduction The incidence of caesarean scar pregnancy (CSP) and cervical pregnancy (CP) has increased significantly in recent years. The related hemorrhage can be lethal and often needs hysterectomy. This study aims to assess the technical and clinical results of uterine artery embolization (UAE) combined with intra-arterial methotrexate (MTX) infusion for CSP and CP. Methods A retrospective study was conducted for 11 patients (age range from 25–40 years, mean; 31.8 y) with CSP (7/11) and CP (4/11). The diagnosis was confirmed by elevated b-hCG levels (mean 31.245 mIU/mL) with sonography and/or magnetic resonance imaging. They were treated with UAE using particulate embolic material. In all patients, the infusion of MTX (50 mg/m2) was performed before UAE. Follow-up periods after UAE ranged between 6-24 months included weekly sonography and b-hCG level assessment. A literature review was performed using standard online search tools. Results In 10 patients, UAE controlled active vaginal bleeding and reduced post-procedural b-hCG levels significantly by the second week. One patient presented with persistent elevated b-hCG level and vaginal rebleeding. The rebleeding was successfully controlled by second UAE procedure. The ectopic pregnancies were resolved, and the uterus was preserved in all patients. No major complications were detected. Normal menses resumed within 2 months after UAE. Two patients had subsequent natural successful intrauterine pregnancies. Conclusion UAE combined with intra-arterial MTX infusion resulted in resolution of ectopic pregnancies with control of hemorrhage and without hysterectomy in this small group of patients.