PMID- 30945973 OWN - NLM STAT- MEDLINE DCOM- 20210621 LR - 20210621 IS - 2164-554X (Electronic) IS - 2164-5515 (Print) IS - 2164-5515 (Linking) VI - 16 IP - 2 DP - 2020 TI - Intravenous immunoglobulin suppresses the polarization of both classically and alternatively activated macrophages. PG - 233-239 LID - 10.1080/21645515.2019.1602434 [doi] AB - Intravenous immunoglobulin (IVIG) is one of the widely used immunotherapeutic molecules in the therapy of autoimmune and inflammatory diseases. Previous reports demonstrate that one of the anti-inflammatory actions of IVIG implicates suppression of macrophage activation and release of their inflammatory mediators. However, macrophages are highly plastic and depending on the microenvironmental signals, macrophages can be polarized into pro-inflammatory classic (M1) or anti-inflammatory alternative (M2) type. This plasticity of macrophages raised additional questions on the role of IVIG towards macrophage polarization. In the present report, we show that IVIG affects the polarization of both classically and alternatively activated macrophages and this process is F(ab')(2)-independent. Our data thus indicate the lack of reciprocal regulation of inflammatory and non-inflammatory macrophages by IVIG. FAU - Saha, Chaitrali AU - Saha C AUID- ORCID: 0000-0002-2769-0617 AD - Institut National de la Sante et de la Recherche Medicale, Centre de Recherche des Cordeliers, Equipe-Immunopathologie et Immunointervention Therapeutique, Sorbonne Universite, Universite Paris Descartes, Paris, France. AD - UMR CNRS 6022, Universite de Technologie de Compiegne, Compiegne, France. FAU - Kothapalli, Prathap AU - Kothapalli P AUID- ORCID: 0000-0002-6180-6134 AD - Institut National de la Sante et de la Recherche Medicale, Centre de Recherche des Cordeliers, Equipe-Immunopathologie et Immunointervention Therapeutique, Sorbonne Universite, Universite Paris Descartes, Paris, France. FAU - Patil, Veerupaxagouda AU - Patil V AUID- ORCID: 0000-0001-9849-7040 AD - Institut National de la Sante et de la Recherche Medicale, Centre de Recherche des Cordeliers, Equipe-Immunopathologie et Immunointervention Therapeutique, Sorbonne Universite, Universite Paris Descartes, Paris, France. FAU - ManjunathaReddy, Gundallahalli Bayyappa AU - ManjunathaReddy GB AUID- ORCID: 0000-0001-8578-7823 AD - Institut National de la Sante et de la Recherche Medicale, Centre de Recherche des Cordeliers, Equipe-Immunopathologie et Immunointervention Therapeutique, Sorbonne Universite, Universite Paris Descartes, Paris, France. AD - Department of Veterinary Pathology, ICAR-National Institute of Veterinary Epidemiology and Disease Informatics, Bengaluru, India. FAU - Kaveri, Srini V AU - Kaveri SV AUID- ORCID: 0000-0002-0837-4053 AD - Institut National de la Sante et de la Recherche Medicale, Centre de Recherche des Cordeliers, Equipe-Immunopathologie et Immunointervention Therapeutique, Sorbonne Universite, Universite Paris Descartes, Paris, France. FAU - Bayry, Jagadeesh AU - Bayry J AUID- ORCID: 0000-0003-0498-9808 AD - Institut National de la Sante et de la Recherche Medicale, Centre de Recherche des Cordeliers, Equipe-Immunopathologie et Immunointervention Therapeutique, Sorbonne Universite, Universite Paris Descartes, Paris, France. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20190507 PL - United States TA - Hum Vaccin Immunother JT - Human vaccines & immunotherapeutics JID - 101572652 RN - 0 (Anti-Inflammatory Agents) RN - 0 (Immunoglobulins, Intravenous) SB - IM MH - Anti-Inflammatory Agents MH - *Immunoglobulins, Intravenous MH - Macrophage Activation MH - *Macrophages PMC - PMC7062444 OTO - NOTNLM OT - IVIG OT - IgG OT - inflammation OT - innate cells OT - macrophage OT - monocyte EDAT- 2019/04/05 06:00 MHDA- 2021/06/22 06:00 PMCR- 2020/05/07 CRDT- 2019/04/05 06:00 PHST- 2019/04/05 06:00 [pubmed] PHST- 2021/06/22 06:00 [medline] PHST- 2019/04/05 06:00 [entrez] PHST- 2020/05/07 00:00 [pmc-release] AID - 1602434 [pii] AID - 10.1080/21645515.2019.1602434 [doi] PST - ppublish SO - Hum Vaccin Immunother. 2020;16(2):233-239. doi: 10.1080/21645515.2019.1602434. Epub 2019 May 7.