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Chermside-Scabbo CJ, Shuster JT, Erdmann-Gilmore P, Tycksen E, Zhang Q, Townsend RR, Silva MJ. A proteomics approach to study mouse long bones: examining baseline differences and mechanical loading-induced bone formation in young-adult and old mice. Aging (Albany NY) 2024; 16:12726-12768. [PMID: 39400554 PMCID: PMC11501390 DOI: 10.18632/aging.206131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Accepted: 09/23/2024] [Indexed: 10/15/2024]
Abstract
With aging, bone mass declines and the anabolic effects of skeletal loading diminish. While much research has focused on gene transcription, how bone ages and loses its mechanoresponsiveness at the protein level remains unclear. We developed a novel proteomics approach and performed a paired mass spectrometry and RNA-seq analysis on tibias from young-adult (5-month) and old (22-month) mice. We report the first correlation estimate between the bone proteome and transcriptome (Spearman ρ = 0.40), which is in line with other tissues but indicates that a relatively low amount of variation in protein levels is explained by the variation in transcript levels. Of 71 shared targets that differed with age, eight were associated with bone mineral density in previous GWAS, including understudied targets Asrgl1 and Timp2. We used complementary RNA in situ hybridization to confirm that Asrgl1 and Timp2 had reduced expression in osteoblasts/osteocytes in old bones. We also found evidence for reduced TGF-beta signaling with aging, in particular Tgfb2. Next, we defined proteomic changes following mechanical loading. At the protein level, bone differed more with age than with loading, and aged bone had fewer loading-induced changes. Overall, our findings underscore the need for complementary protein-level assays in skeletal biology research.
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Affiliation(s)
- Christopher J. Chermside-Scabbo
- Department of Orthopaedic Surgery, Washington University School of Medicine, St. Louis, MO 63110, USA
- Medical Scientist Training Program, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - John T. Shuster
- Department of Orthopaedic Surgery, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Petra Erdmann-Gilmore
- Department of Medicine, Proteomics Core, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Eric Tycksen
- Department of Genetics, McDonnell Genome Institute, Washington University School of Medicine, St. Louis, MO 63108, USA
| | - Qiang Zhang
- Department of Medicine, Proteomics Core, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - R. Reid Townsend
- Department of Medicine, Proteomics Core, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Matthew J. Silva
- Department of Orthopaedic Surgery, Washington University School of Medicine, St. Louis, MO 63110, USA
- Department of Biomedical Engineering, Washington University, St. Louis, MO 63105, USA
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2
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An JH, Koh H, Ahn Y, Kim J, Han AR, Lee JY, Kim SU, Lee JH. Maintenance of Hypoimmunogenic Features via Regulation of Endogenous Antigen Processing and Presentation Machinery. Front Bioeng Biotechnol 2022; 10:936584. [PMID: 36032723 PMCID: PMC9416868 DOI: 10.3389/fbioe.2022.936584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Accepted: 06/16/2022] [Indexed: 11/27/2022] Open
Abstract
Universally acceptable donor cells have been developed to address the unmet need for immunotypically matched materials for regenerative medicine. Since forced expression of hypoimmunogenic genes represses the immune response, we established universal pluripotent stem cells (PSCs) by replacing endogenous β2-microglobulin (β2m) with β2m directly conjugated to human leukocyte antigen (HLA)-G, thereby simultaneously suppressing HLA-I expression and the natural killer (NK) cell-mediated immune response. These modified human PSCs retained their pluripotency and differentiation capacity; however, surface presentation of HLA-G was absent from subsequently differentiated cells, particularly cells of neural lineages, due to the downregulation of antigen processing and presentation machinery (APM) genes. Induction of APM genes by overexpression of NLR-family CARD domain-containing 5 (NLRC5) or activator subunit of nuclear factor kappa B (NF-κB) heterodimer (RelA) recovered the surface expression of HLA-G and the hypoimmunogenicity of neural cells. Our findings enhance the utility of hypoimmunogenic cells as universal donors and will contribute to the development of off-the-shelf stem-cell therapeutics.
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Affiliation(s)
- Ju-Hyun An
- Futuristic Animal Resource and Research Center (FARRC), Korea Research Institute of Bioscience and Biotechnology (KRIBB), Ochang, South Korea
- Department of Functional Genomics, KRIBB School of Bioscience, Korea University of Science and Technology, Daejeon, South Korea
| | - Hyebin Koh
- Futuristic Animal Resource and Research Center (FARRC), Korea Research Institute of Bioscience and Biotechnology (KRIBB), Ochang, South Korea
- Department of Functional Genomics, KRIBB School of Bioscience, Korea University of Science and Technology, Daejeon, South Korea
| | - Yujin Ahn
- Futuristic Animal Resource and Research Center (FARRC), Korea Research Institute of Bioscience and Biotechnology (KRIBB), Ochang, South Korea
- Department of Functional Genomics, KRIBB School of Bioscience, Korea University of Science and Technology, Daejeon, South Korea
| | - Jieun Kim
- Department of Medical Life Sciences, College of Medicine, The Catholic University of Korea, Seoul, South Korea
- National Primate Research Center (NPRC), Korea Research Institute of Bioscience and Biotechnology (KRIBB), Ochang, South Korea
| | - A-Reum Han
- CHA Advanced Research Institute, Bundang CHA Hospital, CHA University, Seongnam, South Korea
| | - Ji Yoon Lee
- CHA Advanced Research Institute, Bundang CHA Hospital, CHA University, Seongnam, South Korea
| | - Sun-Uk Kim
- Futuristic Animal Resource and Research Center (FARRC), Korea Research Institute of Bioscience and Biotechnology (KRIBB), Ochang, South Korea
- Department of Functional Genomics, KRIBB School of Bioscience, Korea University of Science and Technology, Daejeon, South Korea
| | - Jong-Hee Lee
- Department of Functional Genomics, KRIBB School of Bioscience, Korea University of Science and Technology, Daejeon, South Korea
- National Primate Research Center (NPRC), Korea Research Institute of Bioscience and Biotechnology (KRIBB), Ochang, South Korea
- *Correspondence: Jong-Hee Lee,
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HLA-A2 Promotes the Therapeutic Effect of Umbilical Cord Blood-Derived Mesenchymal Stem Cells in Hyperoxic Lung Injury. Bioengineering (Basel) 2022; 9:bioengineering9040177. [PMID: 35447737 PMCID: PMC9029550 DOI: 10.3390/bioengineering9040177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 03/30/2022] [Accepted: 04/01/2022] [Indexed: 12/03/2022] Open
Abstract
Mesenchymal stem cells (MSCs) are one of the most extensively studied stem cell types owing to their capacity for differentiation into multiple lineages as well as their ability to secrete regenerative factors and modulate immune functions. However, issues remain regarding their further application for cell therapy. Here, to demonstrate the superiority of the improvement of MSCs, we divided umbilical cord blood-derived MSCs (UCB-MSCs) from 15 donors into two groups based on efficacy and revealed donor-dependent variations in the anti-inflammatory effect of MSCs on macrophages as well as their immunoregulatory effect on T cells. Through surface marker analyses (242 antibodies), we found that HLA-A2 was positively related to the anti-inflammatory and immunoregulatory function of MSCs. Additionally, HLA-A2 mRNA silencing in MSCs attenuated their therapeutic effects in vitro; namely, the suppression of LPS-stimulated macrophages and phytohemagglutinin-stimulated T cells. Moreover, HLA-A2 silencing in MSCs significantly decreased their therapeutic effects in a rat model of hyperoxic lung damage. The present study provides novel insights into the quality control of donor-derived MSCs for the treatment of inflammatory conditions and diseases.
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Albuquerque-Souza E, Schulte F, Chen T, Hardt M, Hasturk H, Van Dyke TE, Holzhausen M, Kantarci A. Maresin-1 and Resolvin E1 Promote Regenerative Properties of Periodontal Ligament Stem Cells Under Inflammatory Conditions. Front Immunol 2020; 11:585530. [PMID: 33101318 PMCID: PMC7546375 DOI: 10.3389/fimmu.2020.585530] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Accepted: 09/08/2020] [Indexed: 12/23/2022] Open
Abstract
Maresin-1 (MaR1) and Resolvin E1 (RvE1) are specialized pro-resolving lipid mediators (SPMs) that regulate inflammatory processes. We have previously demonstrated the hard and soft tissue regenerative capacity of RvE1 in an in vivo model of the periodontal disease characterized by inflammatory tissue destruction. Regeneration of periodontal tissues requires a well-orchestrated process mediated by periodontal ligament stem cells. However, limited data are available on how SPMs can regulate the regenerative properties of human periodontal ligament stem cells (hPDLSCs) under inflammatory conditions. Thus, we measured the impact of MaR1 and RvE1 in an in vitro model of hPDLSC under stimulation with IL-1β and TNF-α by evaluating pluripotency, migration, viability/cell death, periodontal ligament markers (α-smooth muscle actin, tenomodulin, and periostin), cementogenic-osteogenic differentiation, and phosphoproteomic perturbations. The data showed that the pro-inflammatory milieu suppresses pluripotency, viability, and migration of hPDLSCs; MaR1 and RvE1 both restored regenerative capacity by increasing hPDLSC viability, accelerating wound healing/migration, and up-regulating periodontal ligament markers and cementogenic-osteogenic differentiation. Protein phosphorylation perturbations were associated with the SPM-induced regenerative capacity of hPDLSCs. Together, these results demonstrate that MaR1 and RvE1 restore or improve the regenerative properties of highly specialized stem cells when inflammation is present and offer opportunities for direct pharmacologic treatment of lost tissue integrity.
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Affiliation(s)
- Emmanuel Albuquerque-Souza
- The Forsyth Institute, Cambridge, MA, United States.,Division of Periodontics, Department of Stomatology, School of Dentistry, University of São Paulo, São Paulo, Brazil
| | - Fabian Schulte
- The Forsyth Institute, Cambridge, MA, United States.,Department of Developmental Biology, Harvard School of Dental Medicine, Boston, MA, United States
| | - Tsute Chen
- The Forsyth Institute, Cambridge, MA, United States
| | - Markus Hardt
- The Forsyth Institute, Cambridge, MA, United States.,Department of Developmental Biology, Harvard School of Dental Medicine, Boston, MA, United States
| | | | | | - Marinella Holzhausen
- Division of Periodontics, Department of Stomatology, School of Dentistry, University of São Paulo, São Paulo, Brazil
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Dellgren C, Ekwelum VAC, Ormhøj M, Pallesen N, Knudsen J, Nehlin JO, Barington T. Low Constitutive Cell Surface Expression of HLA-B Is Caused by a Posttranslational Mechanism Involving Glu180 and Arg239. THE JOURNAL OF IMMUNOLOGY 2016; 197:4807-4816. [PMID: 27821669 DOI: 10.4049/jimmunol.1502546] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2015] [Accepted: 10/11/2016] [Indexed: 12/18/2022]
Abstract
HLA class I cell surface expression is crucial for normal immune responses, and variability in HLA expression may influence the course of infections. We have previously shown that classical HLA class I expression on many human cell types is biased with greatly reduced expression of HLA-B compared with HLA-A in the absence of inflammatory signals. In the search for the mechanisms responsible for this discrepancy, we have recently reported that the regulation is mainly posttranslational and that the C-terminal part of the α2 domain and the α3 domain contain the molecular determinants that explain most of the variability of expression between common HLA-A and -B allomorphs. In this study, we present a fine mapping of the structural determinants that allow such variability by exchanging key amino acids located within the C-terminal part of the α2 domain and the α3 domain of HLA-A2 and -B8, including Glu/Asp at position 177, Gln/Glu at position 180, Gly/Arg at position 239, and Pro/Ser at position 280. We found that the HLA-A2 and -B8 expression profiles could be interconverted to a large extent by mutual exchange of Gln/Glu at position 180 or by Gly/Arg at position 239. The presence of Gln180 and Gly239, as in HLA-A2, led to higher cell surface expression levels when compared with the presence of Glu180 and Arg239, as in HLA-B8. This indicates that the amino acids at positions 180 and 239 determine the level of cell surface expression of common HLA-A and -B allomorphs, probably by affecting HLA processing in the Ag presentation pathway.
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Affiliation(s)
- Christoffer Dellgren
- Department of Clinical Immunology, Odense University Hospital, 5000 Odense, Denmark
| | - Vanessa A C Ekwelum
- Department of Clinical Immunology, Odense University Hospital, 5000 Odense, Denmark
| | - Maria Ormhøj
- Department of Clinical Immunology, Odense University Hospital, 5000 Odense, Denmark
| | - Nicole Pallesen
- Department of Clinical Immunology, Odense University Hospital, 5000 Odense, Denmark
| | - Julie Knudsen
- Department of Clinical Immunology, Odense University Hospital, 5000 Odense, Denmark
| | - Jan O Nehlin
- Department of Clinical Immunology, Odense University Hospital, 5000 Odense, Denmark
| | - Torben Barington
- Department of Clinical Immunology, Odense University Hospital, 5000 Odense, Denmark
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Cell surface expression level variation between two common Human Leukocyte Antigen alleles, HLA-A2 and HLA-B8, is dependent on the structure of the C terminal part of the alpha 2 and the alpha 3 domains. PLoS One 2015; 10:e0135385. [PMID: 26258424 PMCID: PMC4530957 DOI: 10.1371/journal.pone.0135385] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2015] [Accepted: 07/22/2015] [Indexed: 12/31/2022] Open
Abstract
Constitutive cell surface expression of Human Leukocyte Antigen (HLA) class I antigens vary extremely from tissue to tissue and individual antigens may differ widely in expression levels. Down-regulation of class I expression is a known immune evasive mechanism used by cancer cells and viruses. Moreover, recent observations suggest that even minor differences in expression levels may influence the course of viral infections and the frequency of complications to stem cell transplantation. We have shown that some human multipotent stem cells have high expression of HLA-A while HLA-B is only weakly expressed, and demonstrate here that this is also the case for the human embryonic kidney cell line HEK293T. Using quantitative flow cytometry and quantitative polymerase chain reaction we found expression levels of endogenous HLA-A3 (median 71,204 molecules per cell) 9.2-fold higher than the expression of-B7 (P = 0.002). Transfection experiments with full-length HLA-A2 and -B8 encoding plasmids confirmed this (54,031 molecules per cell vs. 2,466, respectively, P = 0.001) independently of transcript levels suggesting a post-transcriptional regulation. Using chimeric constructs we found that the cytoplasmic tail and the transmembrane region had no impact on the differential cell surface expression. In contrast, ~65% of the difference could be mapped to the six C-terminal amino acids of the alpha 2 domain and the alpha 3 domain (amino acids 176–284), i.e. amino acids not previously shown to be of importance for differential expression levels of HLA class I molecules. We suggest that the differential cell surface expression of two common HLA-A and–B alleles is regulated by a post-translational mechanism that may involve hitherto unrecognized molecules.
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Nakauchi Y, Yamazaki S, Napier SC, Usui JI, Ota Y, Takahashi S, Watanabe N, Nakauchi H. Effective treatment against severe graft-versus-host disease with allele-specific anti-HLA monoclonal antibody in a humanized mouse model. Exp Hematol 2014; 43:79-88.e1-4. [PMID: 25448490 DOI: 10.1016/j.exphem.2014.10.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2014] [Revised: 10/15/2014] [Accepted: 10/22/2014] [Indexed: 11/19/2022]
Abstract
Graft-versus-host disease (GVHD), mediated by donor-derived alloreactive T cells, is a major cause of nonrelapse mortality in allogeneic hematopoietic stem cell transplantation. Its therapy is not well-defined. We established allele-specific anti-human leukocyte antigen (HLA) monoclonal antibodies (ASHmAbs) that specifically target HLA molecules, with steady death of target-expressing cells. One such ASHmAb, against HLA-A*02:01 (A2-kASHmAb), was examined in a xenogeneic GVHD mouse model. To induce fatal GVHD, non-irradiated NOD/Shi-scid/IL-2Rγ(null) mice were injected with healthy donor human peripheral blood mononuclear cells, some expressing HLA-A*02:01, some not. Administration of A2-kASHmAb promoted the survival of mice injected with HLA-A*02:01-expressing peripheral blood mononuclear cells (p < 0.0001) and, in humanized NOD/Shi-scid/IL-2Rγ(null) mice, immediately cleared HLA-A*02:01-expressing human blood cells from mouse peripheral blood. Human peripheral blood mononuclear cells were again detectable in mouse blood 2 to 4 weeks after A2-kASHmAb administration, suggesting that kASHmAb may be safely administered to GVHD patients without permanently ablating the graft. This approach, different from those in existing GVHD pharmacotherapy, may open a new door for treatment of GVHD in HLA-mismatched allogeneic hematopoietic stem cell transplantation.
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Affiliation(s)
- Yusuke Nakauchi
- Division of Stem Cell Therapy, Centre for Stem Cell Biology and Regenerative Medicine, Institute of Medical Science, University of Tokyo, Tokyo, Japan
| | - Satoshi Yamazaki
- Division of Stem Cell Therapy, Centre for Stem Cell Biology and Regenerative Medicine, Institute of Medical Science, University of Tokyo, Tokyo, Japan.
| | - Stephanie C Napier
- Laboratory of Diagnostic Medicine, Division of Stem Cell Therapy, Centre for Stem Cell Biology and Regenerative Medicine, Institute of Medical Science, University of Tokyo, Tokyo, Japan
| | - Jo-ichi Usui
- Department of Nephrology, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Ibaraki, Japan
| | - Yasunori Ota
- Department of Pathology, Research Hospital, Institute of Medical Science, University of Tokyo, Tokyo, Japan
| | - Satoshi Takahashi
- Department of Hematology/Oncology, Institute of Medical Science, University of Tokyo, Tokyo, Japan
| | - Nobukazu Watanabe
- Laboratory of Diagnostic Medicine, Division of Stem Cell Therapy, Centre for Stem Cell Biology and Regenerative Medicine, Institute of Medical Science, University of Tokyo, Tokyo, Japan
| | - Hiromitsu Nakauchi
- Division of Stem Cell Therapy, Centre for Stem Cell Biology and Regenerative Medicine, Institute of Medical Science, University of Tokyo, Tokyo, Japan; Institute of Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, CA, USA
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