PMID- 35740904 OWN - NLM STAT- MEDLINE DCOM- 20220627 LR - 20220716 IS - 2218-273X (Electronic) IS - 2218-273X (Linking) VI - 12 IP - 6 DP - 2022 Jun 2 TI - Transcriptomic Profiling Reveals That HMGB1 Induces Macrophage Polarization Different from Classical M1. LID - 10.3390/biom12060779 [doi] LID - 779 AB - Macrophages are key inflammatory immune cells that display dynamic phenotypes and functions in response to their local microenvironment. In different conditions, macrophage polarization can be induced by high-mobility group box 1 (HMGB1), a nuclear DNA-binding protein that activates innate immunity via the Toll-like receptor (TLR) 4, the receptor for advanced glycation end products (RAGE), and C-X-C chemokine receptor (CXCR) 4. This study investigated the phenotypes of murine bone-marrow-derived macrophages (BMDMs) stimulated with different HMGB1 redox isoforms using bulk RNA sequencing (RNA-Seq). Disulfide HMGB1 (dsHMGB1)-stimulated BMDMs showed a similar but distinct transcriptomic profile to LPS/IFNgamma- and LPS-stimulated BMDMs. Fully reduced HMGB1 (frHMGB1) did not induce any significant transcriptomic change. Interestingly, compared to LPS/IFNgamma- and LPS-, dsHMGB1-stimulated BMDMs showed lipid metabolism and foam cell differentiation gene set enrichment, and oil red O staining revealed that both dsHMGB1 and frHMGB1 alleviated oxidized low-density lipoprotein (oxLDL)-induced foam cells formation. Overall, this work, for the first time, used transcriptomic analysis by RNA-Seq to investigate the impact of HMGB1 stimulation on BMDM polarization. Our results demonstrated that dsHMGB1 and frHMGB1 induced distinct BMDM polarization phenotypes compared to LPS/IFNgamma- and LPS- induced phenotypes. FAU - Qu, Heshuang AU - Qu H AUID- ORCID: 0000-0001-6011-5588 AD - Department of Medicine, Solna, Karolinska Institutet, and Centre for Molecular Medicine, Karolinska University Hospital, 171 64 Stockholm, Sweden. FAU - Heinback, Rebecka AU - Heinback R AUID- ORCID: 0000-0001-7004-252X AD - Department of Medicine, Solna, Karolinska Institutet, and Centre for Molecular Medicine, Karolinska University Hospital, 171 64 Stockholm, Sweden. FAU - Salo, Henna AU - Salo H AD - Department of Medicine, Solna, Karolinska Institutet, and Centre for Molecular Medicine, Karolinska University Hospital, 171 64 Stockholm, Sweden. FAU - Ewing, Ewoud AU - Ewing E AD - Department of Clinical Neuroscience, Karolinska Institutet, and Centre for Molecular Medicine, Karolinska University Hospital, 171 64 Stockholm, Sweden. FAU - Espinosa, Alexander AU - Espinosa A AD - Department of Medicine, Solna, Karolinska Institutet, and Centre for Molecular Medicine, Karolinska University Hospital, 171 64 Stockholm, Sweden. FAU - Aulin, Cecilia AU - Aulin C AD - Department of Medicine, Solna, Karolinska Institutet, and Centre for Molecular Medicine, Karolinska University Hospital, 171 64 Stockholm, Sweden. FAU - Erlandsson Harris, Helena AU - Erlandsson Harris H AD - Department of Medicine, Solna, Karolinska Institutet, and Centre for Molecular Medicine, Karolinska University Hospital, 171 64 Stockholm, Sweden. AD - Broegelmann Research Laboratory, Department of Clinical Science, University of Bergen, 5021 Bergen, Norway. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20220602 PL - Switzerland TA - Biomolecules JT - Biomolecules JID - 101596414 RN - 0 (HMGB1 Protein) RN - 0 (HMGB1 protein, mouse) RN - 0 (Lipopolysaccharides) SB - IM MH - Animals MH - *HMGB1 Protein/genetics/metabolism MH - Lipopolysaccharides/metabolism/pharmacology MH - *Macrophage Activation MH - Macrophages/metabolism MH - Mice MH - *Transcriptome PMC - PMC9221381 OTO - NOTNLM OT - HMGB1 OT - RNA sequencing OT - foam cell formation OT - gene ontology OT - macrophage polarization COIS- The authors declare no conflict of interest. EDAT- 2022/06/25 06:00 MHDA- 2022/06/28 06:00 PMCR- 2022/06/02 CRDT- 2022/06/24 01:09 PHST- 2022/05/15 00:00 [received] PHST- 2022/05/27 00:00 [revised] PHST- 2022/05/31 00:00 [accepted] PHST- 2022/06/24 01:09 [entrez] PHST- 2022/06/25 06:00 [pubmed] PHST- 2022/06/28 06:00 [medline] PHST- 2022/06/02 00:00 [pmc-release] AID - biom12060779 [pii] AID - biomolecules-12-00779 [pii] AID - 10.3390/biom12060779 [doi] PST - epublish SO - Biomolecules. 2022 Jun 2;12(6):779. doi: 10.3390/biom12060779.