CORRECTION published: 15 October 2019 doi: 10.3389/fimmu.2019.02413 Corrigendum: Immunomodulatory Effect of MSC on B Cells Is Independent of Secreted Extracellular Vesicles Laura Carreras-Planella 1,2 , Marta Monguió-Tortajada 1,3 , Francesc Enric Borràs 1,2,4 and Marcella Franquesa 1,4* 1 REMAR-IVECAT Group, Germans Trias i Pujol Health Science Research Institute, Badalona, Spain, 2 Department of Cell Biology, Physiology and Immunology, Autonomous University of Barcelona, Barcelona, Spain, 3 ICREC Research Program, Germans Trias i Pujol Health Science Research Institute, Badalona, Spain, 4 Nephrology Service, Germans Trias i Pujol University Hospital, Badalona, Spain Keywords: mesenchymal stromal cells, exosome, regulatory B cell, immunosuppression, memory B cell, Ev isolation A Corrigendum on Immunomodulatory Effect of MSC on B Cells Is Independent of Secreted Extracellular Vesicles by Carreras-Planella, L., Monguió-Tortajada, M., Borràs, F. E., and Franquesa, M. (2019). Front. Immunol. 10:1288. doi: 10.3389/fimmu.2019.01288 There is an error in the Funding statement detailed in the Acknowledgments section. The correct phrasing and number for “Instituto Carlos III (PI17/00336)” is “project PI17/00335, integrated in the National R+ D+ I and funded by the ISCIII and the European Regional Development Fund.” Edited and reviewed by: A correction has been made to the Acknowledgments section: Martin Johannes Hoogduijn, Erasmus University Rotterdam, Netherlands “This work was supported in part by Fundació La Marató de TV3 (201516-10, 201502-30), SGR programme of Generalitat de Catalunya (2017-SGR-301 REMAR Group), ISCIII-REDinREN *Correspondence: (RD16/0009 Feder Funds) and Instituto Carlos III project PI17/00335, integrated in the National R+ Marcella Franquesa D+ I and funded by the ISCIII and the European Regional Development Fund. LC-P by the Spanish mfranquesa@igtp.cat Government FPU grant (Formación de Personal Universitario, FPU17/01444); MM-T is sponsored by the PERIS (SLT002/16/00234) from the Generalitat de Catalunya; FB is a researcher from Fundació Specialty section: Institut de Recerca en Ciències de la Salut Germans Trias i Pujol, supported by the Health Department This article was submitted to of the Catalan Government (Direcció General de Recerca i Innovació, Department Salut, Generalitat de Alloimmunity and Transplantation, Catalunya) and MF is funded by the Catalan Health Department (Generalitat de Catalunya) contract a section of the journal PERIS (SLT002/16/00069); the authors also want to thank Miriam Morón-Font for the graphical Frontiers in Immunology art help.” Received: 11 September 2019 Accepted: 26 September 2019 Additionally, in the original article, there was a mistake in Figure 3 as published. In the X axis of Published: 15 October 2019 the figure, instead of B+ MSC-FP, it should be B+ MSC-PF. The corrected Figure 3 appears below. Citation: The authors apologize for these errors and state that they do not change the scientific conclusions Carreras-Planella L, of the article in any way. The original article has been updated. Monguió-Tortajada M, Borràs FE and Franquesa M (2019) Corrigendum: Immunomodulatory Effect of MSC on Copyright © 2019 Carreras-Planella, Monguió-Tortajada, Borràs and Franquesa. This is an open-access article distributed B Cells Is Independent of Secreted under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums Extracellular Vesicles. is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this Front. Immunol. 10:2413. journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not doi: 10.3389/fimmu.2019.02413 comply with these terms. Frontiers in Immunology | www.frontiersin.org 1 October 2019 | Volume 10 | Article 2413 Carreras-Planella et al. MSC-EV Do Not Immunomodulate B Cells FIGURE 3 | Concentration of IL-10 and TNFα in the culture medium after 7 days of B cell culturing with the different conditions measured by ELISA. Each dot represents a different combination of MSC and B cells donors. Statistical significance (p < 0.05) was determined by Kruskall-Wallis with Dunn’s multi-comparison test (*p ≤ 0.05, **p ≤ 0.01, ****p ≤ 0.0001). MSC, mesenchymal stem cells; CM, conditioned medium; EV, extracellular vesicles; PF, protein fraction. Frontiers in Immunology | www.frontiersin.org 2 October 2019 | Volume 10 | Article 2413