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Oranger A, Colaianni G, Ingravallo G, Scarcella VS, Faienza MF, Grano M, Colucci S, Brunetti G. LIGHT/TNFSF14 Affects Adipose Tissue Phenotype. Int J Mol Sci 2024; 25:716. [PMID: 38255789 PMCID: PMC10815871 DOI: 10.3390/ijms25020716] [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: 11/09/2023] [Revised: 12/22/2023] [Accepted: 12/26/2023] [Indexed: 01/24/2024] Open
Abstract
LIGHT/TNFSF14 is linked to several signaling pathways as a crucial member of a larger immunoregulatory network. It is primarily expressed in inflammatory effector cells, and high levels of LIGHT have been reported in obesity. Thus, with the aim of deepening the knowledge of the role of LIGHT on adipose tissue phenotype, we studied wild-type (WT), Tnfsf14-/-, Rag-/- and Rag-/Tnfsf14- (DKO) mice fed a normal diet (ND) or high-fat diet (HFD). Our results show that, although there is no significant weight gain between the mice with different genotypes, it is significant within each of them. We also detected an increase in visceral White Adipose Tissue (vWAT) weight in all mice fed HFD, together with the lowest levels of vWAT weight in Tnfsf14-/- and DKO mice fed ND with respect to the other strain. Inguinal WAT (iWAT) weight is significantly affected by genotype and HFD. The least amount of iWAT was detected in DKO mice fed ND. Histological analysis of vWAT showed that both the genotype and the diet significantly affect the adipocyte area, whereas the number is affected only by the genotype. In iWAT, the genotype and the diet significantly affect mean adipocyte area and number; interestingly, the area with the least adipocyte was detected in DKO mice fed ND, suggesting a potential browning effect due to the simultaneous lack of mature lymphocytes and LIGHT. Consistently, Uncoupling Protein 1 (UCP1) staining of iWAT demonstrated that few positive brown adipocytes appeared in DKO mice. Furthermore, LIGHT deficiency is associated with greater levels of UCP1, highlighting the lack of its expression in Rag-/- mice. Liver examination showed that all mice fed HFD had a steatotic liver, but it was particularly evident for DKO mice. In conclusion, our study demonstrates that the adipose tissue phenotype is affected by LIGHT levels but also much more by mature lymphocytes.
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Affiliation(s)
- Angela Oranger
- Department of Precision and Regenerative Medicine and Ionian Area, University of Bari, 70124 Bari, Italy; (A.O.); (G.C.); (M.G.)
| | - Graziana Colaianni
- Department of Precision and Regenerative Medicine and Ionian Area, University of Bari, 70124 Bari, Italy; (A.O.); (G.C.); (M.G.)
| | - Giuseppe Ingravallo
- Section of Pathology, Department of Precision and Regenerative Medicine and Ionian Area (DiMePRe-J), University of Bari, 70124 Bari, Italy; (G.I.); (V.S.S.)
| | - Vincenza Sara Scarcella
- Section of Pathology, Department of Precision and Regenerative Medicine and Ionian Area (DiMePRe-J), University of Bari, 70124 Bari, Italy; (G.I.); (V.S.S.)
| | - Maria Felicia Faienza
- Pediatric Unit, Department of Precision and Regenerative Medicine and Ionian Area, University of Bari, 70124 Bari, Italy
| | - Maria Grano
- Department of Precision and Regenerative Medicine and Ionian Area, University of Bari, 70124 Bari, Italy; (A.O.); (G.C.); (M.G.)
| | - Silvia Colucci
- Department of Translational Biomedicine and Neuroscience, University of Bari, 70124 Bari, Italy;
| | - Giacomina Brunetti
- Department of Biosciences, Biotechnologies and Environment, University of Bari, 70125 Bari, Italy
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Andriamboavonjy L, MacDonald A, Hamilton LK, Labrecque M, Boivin MN, Karamchandani J, Stratton JA, Tetreault M. Comparative analysis of methods to reduce activation signature gene expression in PBMCs. Sci Rep 2023; 13:23086. [PMID: 38155174 PMCID: PMC10754832 DOI: 10.1038/s41598-023-49611-2] [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: 07/14/2023] [Accepted: 12/10/2023] [Indexed: 12/30/2023] Open
Abstract
Preserving the in vivo cell transcriptome is essential for accurate profiling, yet factors during cell isolation including time ex vivo and temperature induce artifactual gene expression, particularly in stress-responsive immune cells. In this study, we investigated two methods to mitigate ex vivo activation signature gene (ASG) expression in peripheral blood mononuclear cells (PBMCs): transcription and translation inhibitors (TTis) and cold temperatures during isolation. Comparative analysis of PBMCs isolated with TTis revealed reduced ASG expression. However, TTi treatment impaired responsiveness to LPS stimulation in subsequent in vitro experiments. In contrast, cold isolation methods also prevented ASG expression; up to a point where the addition of TTis during cold isolation offered minimal additional advantage. These findings highlight the importance of considering the advantages and drawbacks of different isolation methods to ensure accurate interpretation of PBMC transcriptomic profiles.
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Affiliation(s)
- Lovatiana Andriamboavonjy
- Research Center of the University of Montreal Hospital (CRCHUM), Université de Montréal, Montreal, Canada
- Department of Neurosciences, Faculty of Medicine, Université de Montréal, Montreal, Canada
| | - Adam MacDonald
- Department of Neurology and Neurosurgery, Montreal Neurological Institute, McGill University, Montreal, Canada
- Aligning Science Across Parkinson's (ASAP) Collaborative Research Network, Chevy Chase, MD, 20815, USA
| | - Laura K Hamilton
- Research Center of the University of Montreal Hospital (CRCHUM), Université de Montréal, Montreal, Canada
| | - Marjorie Labrecque
- Research Center of the University of Montreal Hospital (CRCHUM), Université de Montréal, Montreal, Canada
| | - Marie-Noёlle Boivin
- C-BIG Repository (C-BIG), Montreal Neurological Institute-Hospital, McGill University, Montreal, QC, Canada
| | - Jason Karamchandani
- C-BIG Repository (C-BIG), Montreal Neurological Institute-Hospital, McGill University, Montreal, QC, Canada
- Department of Pathology, Montreal Neurological Institute, Montreal, QC, Canada
| | - Jo Anne Stratton
- Department of Neurology and Neurosurgery, Montreal Neurological Institute, McGill University, Montreal, Canada.
- Aligning Science Across Parkinson's (ASAP) Collaborative Research Network, Chevy Chase, MD, 20815, USA.
| | - Martine Tetreault
- Research Center of the University of Montreal Hospital (CRCHUM), Université de Montréal, Montreal, Canada.
- Department of Neurosciences, Faculty of Medicine, Université de Montréal, Montreal, Canada.
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3
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Rodriguez BV, Wen Y, Shirk EN, Vazquez S, Gololobova O, Maxwell A, Plunkard J, Castell N, Carlson B, Queen SE, Izzi JM, Driedonks TAP, Witwer KW. An ex vivo model of interactions between extracellular vesicles and peripheral mononuclear blood cells in whole blood. J Extracell Vesicles 2023; 12:e12368. [PMID: 38047476 PMCID: PMC10694845 DOI: 10.1002/jev2.12368] [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: 05/15/2023] [Revised: 08/25/2023] [Accepted: 09/13/2023] [Indexed: 12/05/2023] Open
Abstract
Extracellular vesicles (EVs) can be loaded with therapeutic cargo and engineered for retention by specific body sites; therefore, they have great potential for targeted delivery of biomolecules to treat diseases. However, the pharmacokinetics and biodistribution of EVs in large animals remain relatively unknown, especially in primates. We recently reported that when cell culture-derived EVs are administered intravenously to Macaca nemestrina (pig-tailed macaques), they differentially associate with specific subsets of peripheral blood mononuclear cells (PBMCs). More than 60% of CD20+ B cells were observed to associate with EVs for up to 1 h post-intravenous administration. To investigate these associations further, we developed an ex vivo model of whole blood collected from healthy pig-tailed macaques. Using this ex vivo system, we found that labelled EVs preferentially associate with B cells in whole blood at levels similar to those detected in vivo. This study demonstrates that ex vivo blood can be used to study EV-blood cell interactions.
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Affiliation(s)
- Blanca V. Rodriguez
- Department of Molecular and Comparative PathobiologyJohns Hopkins University School of MedicineBaltimoreMarylandUSA
| | - Yi Wen
- Department of Molecular and Comparative PathobiologyJohns Hopkins University School of MedicineBaltimoreMarylandUSA
| | - Erin N. Shirk
- Department of Molecular and Comparative PathobiologyJohns Hopkins University School of MedicineBaltimoreMarylandUSA
| | - Samuel Vazquez
- Department of Molecular and Comparative PathobiologyJohns Hopkins University School of MedicineBaltimoreMarylandUSA
| | - Olesia Gololobova
- Department of Molecular and Comparative PathobiologyJohns Hopkins University School of MedicineBaltimoreMarylandUSA
| | - Amanda Maxwell
- Department of Molecular and Comparative PathobiologyJohns Hopkins University School of MedicineBaltimoreMarylandUSA
| | - Jessica Plunkard
- Department of Molecular and Comparative PathobiologyJohns Hopkins University School of MedicineBaltimoreMarylandUSA
| | - Natalie Castell
- Department of Molecular and Comparative PathobiologyJohns Hopkins University School of MedicineBaltimoreMarylandUSA
| | - Bess Carlson
- Department of Molecular and Comparative PathobiologyJohns Hopkins University School of MedicineBaltimoreMarylandUSA
| | - Suzanne E. Queen
- Department of Molecular and Comparative PathobiologyJohns Hopkins University School of MedicineBaltimoreMarylandUSA
| | - Jessica M. Izzi
- Department of Molecular and Comparative PathobiologyJohns Hopkins University School of MedicineBaltimoreMarylandUSA
| | - Tom A. P. Driedonks
- Department of Molecular and Comparative PathobiologyJohns Hopkins University School of MedicineBaltimoreMarylandUSA
- University Medical CenterUtrecht UniversityUtrechtThe Netherlands
| | - Kenneth W. Witwer
- Department of Molecular and Comparative PathobiologyJohns Hopkins University School of MedicineBaltimoreMarylandUSA
- Department of NeurologyJohns Hopkins University School of MedicineBaltimoreMarylandUSA
- Richman Family Precision Medicine Center of Excellence in Alzheimer's DiseaseJohns Hopkins University School of MedicineBaltimoreMarylandUSA
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De Donno C, Hediyeh-Zadeh S, Moinfar AA, Wagenstetter M, Zappia L, Lotfollahi M, Theis FJ. Population-level integration of single-cell datasets enables multi-scale analysis across samples. Nat Methods 2023; 20:1683-1692. [PMID: 37813989 PMCID: PMC10630133 DOI: 10.1038/s41592-023-02035-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Accepted: 09/05/2023] [Indexed: 10/11/2023]
Abstract
The increasing generation of population-level single-cell atlases has the potential to link sample metadata with cellular data. Constructing such references requires integration of heterogeneous cohorts with varying metadata. Here we present single-cell population level integration (scPoli), an open-world learner that incorporates generative models to learn sample and cell representations for data integration, label transfer and reference mapping. We applied scPoli on population-level atlases of lung and peripheral blood mononuclear cells, the latter consisting of 7.8 million cells across 2,375 samples. We demonstrate that scPoli can explain sample-level biological and technical variations using sample embeddings revealing genes associated with batch effects and biological effects. scPoli is further applicable to single-cell sequencing assay for transposase-accessible chromatin and cross-species datasets, offering insights into chromatin accessibility and comparative genomics. We envision scPoli becoming an important tool for population-level single-cell data integration facilitating atlas use but also interpretation by means of multi-scale analyses.
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Affiliation(s)
- Carlo De Donno
- Institute of Computational Biology, Helmholtz Center Munich, Munich, Germany
- School of Life Sciences Weihenstephan, Technical University of Munich, Munich, Germany
| | | | - Amir Ali Moinfar
- Institute of Computational Biology, Helmholtz Center Munich, Munich, Germany
- School of Computing, Information and Technology, Technical University of Munich, Munich, Germany
| | - Marco Wagenstetter
- Institute of Computational Biology, Helmholtz Center Munich, Munich, Germany
| | - Luke Zappia
- Institute of Computational Biology, Helmholtz Center Munich, Munich, Germany
- School of Computing, Information and Technology, Technical University of Munich, Munich, Germany
| | - Mohammad Lotfollahi
- Institute of Computational Biology, Helmholtz Center Munich, Munich, Germany.
- Wellcome Sanger Institute, Wellcome Genome Campus, Cambridge, UK.
| | - Fabian J Theis
- Institute of Computational Biology, Helmholtz Center Munich, Munich, Germany.
- School of Life Sciences Weihenstephan, Technical University of Munich, Munich, Germany.
- School of Computing, Information and Technology, Technical University of Munich, Munich, Germany.
- Wellcome Sanger Institute, Wellcome Genome Campus, Cambridge, UK.
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5
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Sun WZ, Lin HW, Chen WY, Chien CL, Lai YL, Chen J, Chen YL, Cheng WF. Dual inhibition of BTLA and PD-1 can enhance therapeutic efficacy of paclitaxel on intraperitoneally disseminated tumors. J Immunother Cancer 2023; 11:e006694. [PMID: 37463789 PMCID: PMC10357656 DOI: 10.1136/jitc-2023-006694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/25/2023] [Indexed: 07/20/2023] Open
Abstract
BACKGROUND Expression of immune checkpoints in the tumor microenvironment is one mechanism underlying paclitaxel (PTX) chemoresistance. This study aimed to investigate whether the addition of checkpoint blockade to PTX can improve the therapeutic efficacy against apparently disseminated intraperitoneal tumors. METHODS We analyzed the in vivo expression of various immune checkpoints in CD3+CD8+ cytotoxic T cells from tumor-bearing mice treated with or without PTX and validated the tumor-killing activities of selected checkpoint-expressing T-cell subpopulations ex vivo. The regulation of selected checkpoints was investigated in vitro. The therapeutic effects of inhibition of a targeted checkpoint pathway with antibodies added to PTX therapy were examined. RESULTS CD3+CD8+ T cells expressed with herpes virus entry mediator (HVEM), programmed cell death 1 (PD-1), and T-cell immunoglobulin domain and mucin domain 3 (TIM-3) in tumor-bearing hosts treated with PTX had effective tumoricidal activities. In addition to PTX and cytokines, B and T lymphocyte attenuator (BTLA) or homologous to lymphotoxin, exhibits inducible expression and competes with herpes simplex virus (HSV) glycoprotein D for binding to HVEM, a receptor expressed on T lymphocytes (LIGHT) interacting with HVEM can regulate the expression of PD-1 on CD3+CD8+ T cells. Interleukin (IL)-15 increased the percentage of HVEMhighgranzyme B (GZMB)+ cells among CD3+CD8+ T cells, which was suppressed by the BTLA/HVEM signal. LIGHT induced the percentage of HVEM+GZMB+ cells but not HVEMhighGZMB+ cells among CD3+CD8+ T cells. Expression of IL-15, BTLA, or LIGHT was detected in CD19+ B cells and regulated by damage-associated molecular patterns/Toll-like receptor interactions. In the tumor-bearing hosts treated with PTX, certain proportions of BTLA+ B or PD-1+ T lymphocytes were still noted. When dual inhibition of BTLA and PD-1 was added to PTX, the antitumor effects on intraperitoneally disseminated tumors can be significantly improved. CONCLUSIONS Dual blockade of BTLA on B cells and PD-1 on cytotoxic T cells may have clinical potential for enhancing the efficacy of PTX in the treatment of tumors with intraperitoneal spread, including epithelial ovarian carcinomas.
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Affiliation(s)
- Wei-Zen Sun
- Department of Anesthesiology, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Han-Wei Lin
- Department of Anesthesiology, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Wan-Yu Chen
- Graduate Institute of Oncology,College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Chung-Liang Chien
- Graduate Institute of Anatomy and Cell Biology,College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Yen-Ling Lai
- Department of Obstetrics and Gynecology,College of Medicine, National Taiwan University, Taipei, Taiwan
- Department of Obstetrics and Gynecology, National Taiwan University Hospital Hsin-Chu Branch, Hsin‑Chu, Taiwan
| | - Jung Chen
- Department of Obstetrics and Gynecology,College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Yu-Li Chen
- Department of Obstetrics and Gynecology,College of Medicine, National Taiwan University, Taipei, Taiwan
- Department of Obstetrics and Gynecology, National Taiwan University Hospital Yun-Lin Branch, Yun‑Lin county, Taiwan
| | - Wen-Fang Cheng
- Graduate Institute of Oncology,College of Medicine, National Taiwan University, Taipei, Taiwan
- Department of Obstetrics and Gynecology,College of Medicine, National Taiwan University, Taipei, Taiwan
- Graduate Institute of Clinical Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan
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6
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Vasaikar SV, Savage AK, Gong Q, Swanson E, Talla A, Lord C, Heubeck AT, Reading J, Graybuck LT, Meijer P, Torgerson TR, Skene PJ, Bumol TF, Li XJ. A comprehensive platform for analyzing longitudinal multi-omics data. Nat Commun 2023; 14:1684. [PMID: 36973282 PMCID: PMC10041512 DOI: 10.1038/s41467-023-37432-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Accepted: 03/17/2023] [Indexed: 03/29/2023] Open
Abstract
Longitudinal bulk and single-cell omics data is increasingly generated for biological and clinical research but is challenging to analyze due to its many intrinsic types of variations. We present PALMO ( https://github.com/aifimmunology/PALMO ), a platform that contains five analytical modules to examine longitudinal bulk and single-cell multi-omics data from multiple perspectives, including decomposition of sources of variations within the data, collection of stable or variable features across timepoints and participants, identification of up- or down-regulated markers across timepoints of individual participants, and investigation on samples of same participants for possible outlier events. We have tested PALMO performance on a complex longitudinal multi-omics dataset of five data modalities on the same samples and six external datasets of diverse background. Both PALMO and our longitudinal multi-omics dataset can be valuable resources to the scientific community.
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Affiliation(s)
| | - Adam K Savage
- Allen Institute for Immunology, Seattle, WA, 98109, USA
| | - Qiuyu Gong
- Allen Institute for Immunology, Seattle, WA, 98109, USA
| | - Elliott Swanson
- Allen Institute for Immunology, Seattle, WA, 98109, USA
- Department of Genome Sciences, University of Washington School of Medicine, Seattle, WA, USA
| | - Aarthi Talla
- Allen Institute for Immunology, Seattle, WA, 98109, USA
| | - Cara Lord
- Allen Institute for Immunology, Seattle, WA, 98109, USA
- GlaxoSmithKline, Collegeville, PA, 19426, USA
| | | | | | | | - Paul Meijer
- Allen Institute for Immunology, Seattle, WA, 98109, USA
| | | | - Peter J Skene
- Allen Institute for Immunology, Seattle, WA, 98109, USA
| | | | - Xiao-Jun Li
- Allen Institute for Immunology, Seattle, WA, 98109, USA.
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7
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Heubeck A, Savage A, Henderson K, Roll C, Hernandez V, Torgerson T, Bumol T, Reading J. Cross-platform immunophenotyping of human peripheral blood mononuclear cells with four high-dimensional flow cytometry panels. Cytometry A 2022. [PMID: 36571245 DOI: 10.1002/cyto.a.24715] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 12/13/2022] [Accepted: 12/20/2022] [Indexed: 12/27/2022]
Abstract
Immunophenotyping using high dimensional flow cytometry is a central component of human immune system multi-omic studies. We present four high parameter flow cytometry panels for deep immunophenotyping of human peripheral blood mononuclear cells (PBMC). This set of four 25+ color panels include 64 cell surface markers to resolve broad immune compartment populations, as well as activation and memory of specific T, B, natural killer (NK), and myeloid lineages. Common lineage bridging markers are integrated into each panel to allow for inter-panel quality control through major lineage frequency verification. These panels were developed using a five laser BD Symphony A5 conventional cytometer and successfully transferred to a five laser Cytek Aurora spectral cytometer capable of acquiring the panels. Nine representative PBMC samples were stained with the four phenotyping panels and acquired on both instruments to evaluate population frequency and visual staining patterns for gating between the systems. Both instruments produced comparable high quality flow cytometry data and supported our decision to acquire samples on the spectral cytometer moving forward. This modular set of panels and instrument performance metrics provide guidelines for designing flow cytometry experiments suitable for longitudinal or cross-sectional immune profiling.
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Affiliation(s)
| | - Adam Savage
- Allen Institute for Immunology, Seattle, Washington, USA
| | | | - Charles Roll
- Allen Institute for Immunology, Seattle, Washington, USA
| | | | - Troy Torgerson
- Allen Institute for Immunology, Seattle, Washington, USA
| | - Thomas Bumol
- Allen Institute for Immunology, Seattle, Washington, USA
| | - Julian Reading
- Allen Institute for Immunology, Seattle, Washington, USA
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8
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Inflammatory bone marrow signaling in pediatric acute myeloid leukemia distinguishes patients with poor outcomes. Nat Commun 2022; 13:7186. [PMID: 36418348 PMCID: PMC9684530 DOI: 10.1038/s41467-022-34965-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Accepted: 11/09/2022] [Indexed: 11/26/2022] Open
Abstract
High levels of the inflammatory cytokine IL-6 in the bone marrow are associated with poor outcomes in pediatric acute myeloid leukemia (pAML), but its etiology remains unknown. Using RNA-seq data from pre-treatment bone marrows of 1489 children with pAML, we show that > 20% of patients have concurrent IL-6, IL-1, IFNα/β, and TNFα signaling activity and poorer outcomes. Targeted sequencing of pre-treatment bone marrow samples from affected patients (n = 181) revealed 5 highly recurrent patterns of somatic mutation. Using differential expression analyses of the most common genomic subtypes (~60% of total), we identify high expression of multiple potential drivers of inflammation-related treatment resistance. Regardless of genomic subtype, we show that JAK1/2 inhibition reduces receptor-mediated inflammatory signaling by leukemic cells in-vitro. The large number of high-risk pAML genomic subtypes presents an obstacle to the development of mutation-specific therapies. Our findings suggest that therapies targeting inflammatory signaling may be effective across multiple genomic subtypes of pAML.
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Timing of Blood Sample Processing Affects the Transcriptomic and Epigenomic Profiles in CD4+ T-cells of Atopic Subjects. Cells 2022; 11:cells11192958. [PMID: 36230920 PMCID: PMC9563434 DOI: 10.3390/cells11192958] [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: 07/04/2022] [Revised: 08/10/2022] [Accepted: 09/09/2022] [Indexed: 11/17/2022] Open
Abstract
Optimal pre-analytical conditions for blood sample processing and isolation of selected cell populations for subsequent transcriptomic and epigenomic studies are required to obtain robust and reproducible results. This pilot study was conducted to investigate the potential effects of timing of CD4+ T-cell processing from peripheral blood of atopic and non-atopic adults on their transcriptomic and epigenetic profiles. Two heparinized blood samples were drawn from each of three atopic and three healthy individuals. For each individual, CD4+ T-cells were isolated from the first blood sample within 2 h (immediate) or from the second blood sample after 24 h storage (delayed). RNA sequencing (RNA-Seq) and histone H3K27 acetylation chromatin immunoprecipitation sequencing (ChIP-Seq) analyses were performed. A multiplicity of genes was shown to be differentially expressed in immediately processed CD4+ T-cells from atopic versus healthy subjects. These differences disappeared when comparing delayed processed cells due to a drastic change in expression levels of atopy-related genes in delayed processed CD4+ T-cells from atopic donors. This finding was further validated on the epigenomic level by examining H3K27 acetylation profiles. In contrast, transcriptomic and epigenomic profiles of blood CD4+ T-cells of healthy donors remained rather unaffected. Taken together, for successful transcriptomics and epigenomics studies, detailed standard operation procedures developed on the basis of samples from both healthy and disease conditions are implicitly recommended.
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10
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Wen G, Gu W. Circular RNAs in peripheral blood mononuclear cells are more stable than linear RNAs upon sample processing delay. J Cell Mol Med 2022; 26:5021-5032. [PMID: 36039821 PMCID: PMC9549506 DOI: 10.1111/jcmm.17525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2022] [Revised: 08/06/2022] [Accepted: 08/11/2022] [Indexed: 12/01/2022] Open
Abstract
Circular RNAs (circRNAs) are a novel class of RNAs with closed loop structure. Blood circRNAs are widely acknowledged to be more stable than linear mRNAs, which show promising prospect to be liquid biopsy biomarkers for clinical applications. However, accumulating studies have demonstrated that sample processing delays have profound effects on blood transcriptome expression profiles, wherein knowledge remains elusive about the impacts of prolonged sample processing on blood expression profiles of circRNAs. We collected whole blood samples from three donors and isolated peripheral blood mononuclear cells (PBMCs) at six different incubation time points. We measured total RNA expression profiles using RNA sequencing (RNA‐seq) and investigated the differentially expressed circRNAs, mRNAs and lncRNAs upon blood processing delay. Meanwhile, we explored the underlying inducement of aberrant expression of circRNAs against their corresponding mRNA transcripts. Finally, we utilized rMATS‐turbo and CIRI‐AS, respectively, to screen out differential alternative splicing (AS) events in linear mRNAs and circRNAs. Sample incubation at 4°C lasting to 48 hours (h) led to minimal effects to circRNAs' expression. However, it induced extensive alterations for mRNAs and lncRNAs when the incubation time was beyond 12 h. Additionally, only 2 h processing delays may result in profound impacts on AS events of linear mRNAs, while less impact on the equivalence of circRNAs. Our results suggested that PBMC circRNAs are stable upon sample processing delay, which are more suitable to be liquid biopsy biomarkers.
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Affiliation(s)
- Guoxia Wen
- State Key Laboratory of Bioelectronics, School of Biological Sciences and Medical Engineering, Southeast University, Nanjing, China
| | - Wanjun Gu
- Collaborative Innovation Center of Jiangsu Province of Cancer Prevention and Treatment of Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, China.,School of Artificial Intelligence and Information Technology, Nanjing University of Chinese Medicine, Nanjing, China
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11
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Ware CF, Croft M, Neil GA. Realigning the LIGHT signaling network to control dysregulated inflammation. J Exp Med 2022; 219:213236. [PMID: 35604387 PMCID: PMC9130030 DOI: 10.1084/jem.20220236] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 04/29/2022] [Accepted: 05/03/2022] [Indexed: 11/10/2022] Open
Abstract
Advances in understanding the physiologic functions of the tumor necrosis factor superfamily (TNFSF) of ligands, receptors, and signaling networks are providing deeper insight into pathogenesis of infectious and autoimmune diseases and cancer. LIGHT (TNFSF14) has emerged as an important modulator of critical innate and adaptive immune responses. LIGHT and its signaling receptors, herpesvirus entry mediator (TNFRSF14), and lymphotoxin β receptor, form an immune regulatory network with two co-receptors of herpesvirus entry mediator, checkpoint inhibitor B and T lymphocyte attenuator, and CD160. Deciphering the fundamental features of this network reveals new understanding to guide therapeutic development. Accumulating evidence from infectious diseases points to the dysregulation of the LIGHT network as a disease-driving mechanism in autoimmune and inflammatory reactions in barrier organs, including coronavirus disease 2019 pneumonia and inflammatory bowel diseases. Recent clinical results warrant further investigation of the LIGHT regulatory network and application of target-modifying therapeutics for disease intervention.
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Affiliation(s)
- Carl F Ware
- Infectious and Inflammatory Diseases Center, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA
| | - Michael Croft
- Division of Immune Regulation, La Jolla Institute for Immunology, La Jolla, CA
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12
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Proteomics for Biomarker Discovery for Diagnosis and Prognosis of Kidney Transplantation Rejection. Proteomes 2022; 10:proteomes10030024. [PMID: 35893765 PMCID: PMC9326686 DOI: 10.3390/proteomes10030024] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 06/27/2022] [Accepted: 06/28/2022] [Indexed: 02/07/2023] Open
Abstract
Renal transplantation is currently the treatment of choice for end-stage kidney disease, enabling a quality of life superior to dialysis. Despite this, all transplanted patients are at risk of allograft rejection processes. The gold-standard diagnosis of graft rejection, based on histological analysis of kidney biopsy, is prone to sampling errors and carries high costs and risks associated with such invasive procedures. Furthermore, the routine clinical monitoring, based on urine volume, proteinuria, and serum creatinine, usually only detects alterations after graft histologic damage and does not differentiate between the diverse etiologies. Therefore, there is an urgent need for new biomarkers enabling to predict, with high sensitivity and specificity, the rejection processes and the underlying mechanisms obtained from minimally invasive procedures to be implemented in routine clinical surveillance. These new biomarkers should also detect the rejection processes as early as possible, ideally before the 78 clinical outputs, while enabling balanced immunotherapy in order to minimize rejections and reducing the high toxicities associated with these drugs. Proteomics of biofluids, collected through non-invasive or minimally invasive analysis, e.g., blood or urine, present inherent characteristics that may provide biomarker candidates. The current manuscript reviews biofluids proteomics toward biomarkers discovery that specifically identify subclinical, acute, and chronic immune rejection processes while allowing for the discrimination between cell-mediated or antibody-mediated processes. In time, these biomarkers will lead to patient risk stratification, monitoring, and personalized and more efficient immunotherapies toward higher graft survival and patient quality of life.
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Szittner Z, Péter B, Kurunczi S, Székács I, Horváth R. Functional blood cell analysis by label-free biosensors and single-cell technologies. Adv Colloid Interface Sci 2022; 308:102727. [DOI: 10.1016/j.cis.2022.102727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 05/25/2022] [Accepted: 06/27/2022] [Indexed: 11/01/2022]
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Yunga ST, Gower AJ, Melrose AR, Fitzgerald MK, Rajendran A, Lusardi TA, Armstrong RJ, Minnier J, Jordan KR, McCarty OJT, David LL, Wilmarth PA, Reddy AP, Aslan JE. Effects of ex vivo blood anticoagulation and preanalytical processing time on the proteome content of platelets. J Thromb Haemost 2022; 20:1437-1450. [PMID: 35253976 PMCID: PMC9887642 DOI: 10.1111/jth.15694] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Accepted: 03/03/2022] [Indexed: 02/03/2023]
Abstract
BACKGROUND Ex vivo assays of platelet function critically inform mechanistic and clinical hematology studies, where effects of divergent blood processing methods on platelet composition are apparent, but unspecified. OBJECTIVE Here, we evaluate how different blood anticoagulation options and processing times affect platelet function and protein content ex vivo. METHODS Parallel blood samples were collected from healthy human donors into sodium citrate, acid citrate dextrose, EDTA or heparin, and processed over an extended time course for functional and biochemical experiments, including platelet proteome quantification with multiplexed tandem mass tag (TMT) labeling and triple quadrupole mass spectrometry (MS). RESULTS Each anticoagulant had time-dependent effects on platelet function in whole blood. For instance, heparin enhanced platelet agonist reactivity, platelet-monocyte aggregate formation and platelet extracellular vesicle release, while EDTA increased platelet α-granule secretion. Following platelet isolation, TMT-MS quantified 3357 proteins amongst all prepared platelet samples. Altogether, >400 proteins were differentially abundant in platelets isolated from blood processed at 24 h versus 1 h post-phlebotomy, including proteins pertinent to membrane trafficking and exocytosis. Anticoagulant-specific effects on platelet proteomes included increased complement system and decreased α-granule proteins in platelets from EDTA-anticoagulated blood. Platelets prepared from heparinized blood had higher levels of histone and neutrophil-associated proteins in a manner related to neutrophil extracellular trap (NET) formation and platelet:NET interactions in whole blood ex vivo. CONCLUSION Our results demonstrate that different anticoagulants routinely used for blood collection have varying effects on platelets ex vivo, where methodology-associated alterations in platelet proteome may influence mechanistic, translational and biomarker studies.
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Affiliation(s)
- Samuel Tassi Yunga
- Cancer Early Detection Advanced Research Center (CEDAR), Knight Cancer Institute, School of Medicine; Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Portland, OR 97239; USA
- Department of Biomedical Engineering, School of Medicine; Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Portland, OR 97239; USA
| | - Austin J. Gower
- Cancer Early Detection Advanced Research Center (CEDAR), Knight Cancer Institute, School of Medicine; Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Portland, OR 97239; USA
| | - Alexander R. Melrose
- Knight Cardiovascular Institute, Division of Cardiology, School of Medicine; Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Portland, OR 97239; USA
| | - Meghan K. Fitzgerald
- Cancer Early Detection Advanced Research Center (CEDAR), Knight Cancer Institute, School of Medicine; Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Portland, OR 97239; USA
| | - Ashmitha Rajendran
- Cancer Early Detection Advanced Research Center (CEDAR), Knight Cancer Institute, School of Medicine; Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Portland, OR 97239; USA
| | - Theresa A. Lusardi
- Cancer Early Detection Advanced Research Center (CEDAR), Knight Cancer Institute, School of Medicine; Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Portland, OR 97239; USA
| | - Randall J. Armstrong
- Cancer Early Detection Advanced Research Center (CEDAR), Knight Cancer Institute, School of Medicine; Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Portland, OR 97239; USA
| | - Jessica Minnier
- Cancer Early Detection Advanced Research Center (CEDAR), Knight Cancer Institute, School of Medicine; Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Portland, OR 97239; USA
- Knight Cardiovascular Institute, Division of Cardiology, School of Medicine; Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Portland, OR 97239; USA
| | - Kelley R. Jordan
- Department of Biomedical Engineering, School of Medicine; Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Portland, OR 97239; USA
| | - Owen J. T. McCarty
- Department of Biomedical Engineering, School of Medicine; Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Portland, OR 97239; USA
| | - Larry L. David
- Proteomics Shared Resource; Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Portland, OR 97239; USA
- Department of Chemical Physiology & Biochemistry, School of Medicine; Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Portland, OR 97239; USA
| | - Phillip A. Wilmarth
- Proteomics Shared Resource; Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Portland, OR 97239; USA
| | - Ashok P. Reddy
- Proteomics Shared Resource; Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Portland, OR 97239; USA
| | - Joseph E. Aslan
- Department of Biomedical Engineering, School of Medicine; Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Portland, OR 97239; USA
- Knight Cardiovascular Institute, Division of Cardiology, School of Medicine; Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Portland, OR 97239; USA
- Department of Chemical Physiology & Biochemistry, School of Medicine; Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Portland, OR 97239; USA
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Jones RC, Karkanias J, Krasnow MA, Pisco AO, Quake SR, Salzman J, Yosef N, Bulthaup B, Brown P, Harper W, Hemenez M, Ponnusamy R, Salehi A, Sanagavarapu BA, Spallino E, Aaron KA, Concepcion W, Gardner JM, Kelly B, Neidlinger N, Wang Z, Crasta S, Kolluru S, Morri M, Pisco AO, Tan SY, Travaglini KJ, Xu C, Alcántara-Hernández M, Almanzar N, Antony J, Beyersdorf B, Burhan D, Calcuttawala K, Carter MM, Chan CKF, Chang CA, Chang S, Colville A, Crasta S, Culver RN, Cvijović I, D'Amato G, Ezran C, Galdos FX, Gillich A, Goodyer WR, Hang Y, Hayashi A, Houshdaran S, Huang X, Irwin JC, Jang S, Juanico JV, Kershner AM, Kim S, Kiss B, Kolluru S, Kong W, Kumar ME, Kuo AH, Leylek R, Li B, Loeb GB, Lu WJ, Mantri S, Markovic M, McAlpine PL, de Morree A, Morri M, Mrouj K, Mukherjee S, Muser T, Neuhöfer P, Nguyen TD, Perez K, Phansalkar R, Pisco AO, Puluca N, Qi Z, Rao P, Raquer-McKay H, Schaum N, Scott B, Seddighzadeh B, Segal J, Sen S, Sikandar S, Spencer SP, Steffes LC, Subramaniam VR, Swarup A, Swift M, Travaglini KJ, Van Treuren W, Trimm E, Veizades S, Vijayakumar S, Vo KC, Vorperian SK, Wang W, Weinstein HNW, Winkler J, Wu TTH, Xie J, Yung AR, Zhang Y, Detweiler AM, Mekonen H, Neff NF, Sit RV, Tan M, Yan J, Bean GR, Charu V, Forgó E, Martin BA, Ozawa MG, Silva O, Tan SY, Toland A, Vemuri VNP, Afik S, Awayan K, Botvinnik OB, Byrne A, Chen M, Dehghannasiri R, Detweiler AM, Gayoso A, Granados AA, Li Q, Mahmoudabadi G, McGeever A, de Morree A, Olivieri JE, Park M, Pisco AO, Ravikumar N, Salzman J, Stanley G, Swift M, Tan M, Tan W, Tarashansky AJ, Vanheusden R, Vorperian SK, Wang P, Wang S, Xing G, Xu C, Yosef N, Alcántara-Hernández M, Antony J, Chan CKF, Chang CA, Colville A, Crasta S, Culver R, Dethlefsen L, Ezran C, Gillich A, Hang Y, Ho PY, Irwin JC, Jang S, Kershner AM, Kong W, Kumar ME, Kuo AH, Leylek R, Liu S, Loeb GB, Lu WJ, Maltzman JS, Metzger RJ, de Morree A, Neuhöfer P, Perez K, Phansalkar R, Qi Z, Rao P, Raquer-McKay H, Sasagawa K, Scott B, Sinha R, Song H, Spencer SP, Swarup A, Swift M, Travaglini KJ, Trimm E, Veizades S, Vijayakumar S, Wang B, Wang W, Winkler J, Xie J, Yung AR, Artandi SE, Beachy PA, Clarke MF, Giudice LC, Huang FW, Huang KC, Idoyaga J, Kim SK, Krasnow M, Kuo CS, Nguyen P, Quake SR, Rando TA, Red-Horse K, Reiter J, Relman DA, Sonnenburg JL, Wang B, Wu A, Wu SM, Wyss-Coray T. The Tabula Sapiens: A multiple-organ, single-cell transcriptomic atlas of humans. Science 2022; 376:eabl4896. [PMID: 35549404 PMCID: PMC9812260 DOI: 10.1126/science.abl4896] [Citation(s) in RCA: 248] [Impact Index Per Article: 124.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Molecular characterization of cell types using single-cell transcriptome sequencing is revolutionizing cell biology and enabling new insights into the physiology of human organs. We created a human reference atlas comprising nearly 500,000 cells from 24 different tissues and organs, many from the same donor. This atlas enabled molecular characterization of more than 400 cell types, their distribution across tissues, and tissue-specific variation in gene expression. Using multiple tissues from a single donor enabled identification of the clonal distribution of T cells between tissues, identification of the tissue-specific mutation rate in B cells, and analysis of the cell cycle state and proliferative potential of shared cell types across tissues. Cell type-specific RNA splicing was discovered and analyzed across tissues within an individual.
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Genge PC, Roll CR, Heubeck AT, Swanson E, Kondza N, Lord C, Weiss M, Hernandez V, Phalen C, Thomson Z, Torgerson TR, Skene PJ, Bumol TF, Reading J. Optimized workflow for human PBMC multiomic immunosurveillance studies. STAR Protoc 2021; 2:100900. [PMID: 34806044 PMCID: PMC8585660 DOI: 10.1016/j.xpro.2021.100900] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
Deep immune profiling is essential for understanding the human immune system in health and disease. Successful biological interpretation of this data requires consistent laboratory processing with minimal batch-to-batch variation. Here, we detail a robust pipeline for the profiling of human peripheral blood mononuclear cells by both high-dimensional flow cytometry and single-cell RNA-seq. These protocols reduce batch effects, generate reproducible data, and increase throughput. For complete details on the use and execution of this protocol, please refer to Savage et al. (2021). Details a robust pipeline for the profiling of human PBMC Outline a cell thaw protocol compatible with flow cytometry and single cell RNA-seq Focus on batch effect reduction with a bridging cell control and commercial buffers Increased throughput with automated liquid handling and cell counting
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Affiliation(s)
- Palak C. Genge
- Allen Institute for Immunology, 615 Westlake Avenue N, Seattle, WA 98109, USA
| | - Charles R. Roll
- Allen Institute for Immunology, 615 Westlake Avenue N, Seattle, WA 98109, USA
| | | | - Elliott Swanson
- Allen Institute for Immunology, 615 Westlake Avenue N, Seattle, WA 98109, USA
| | - Nina Kondza
- Allen Institute for Immunology, 615 Westlake Avenue N, Seattle, WA 98109, USA
| | - Cara Lord
- Allen Institute for Immunology, 615 Westlake Avenue N, Seattle, WA 98109, USA
| | - Morgan Weiss
- Allen Institute for Immunology, 615 Westlake Avenue N, Seattle, WA 98109, USA
| | - Veronica Hernandez
- Allen Institute for Immunology, 615 Westlake Avenue N, Seattle, WA 98109, USA
| | - Cole Phalen
- Allen Institute for Immunology, 615 Westlake Avenue N, Seattle, WA 98109, USA
| | - Zachary Thomson
- Allen Institute for Immunology, 615 Westlake Avenue N, Seattle, WA 98109, USA
| | - Troy R. Torgerson
- Allen Institute for Immunology, 615 Westlake Avenue N, Seattle, WA 98109, USA
| | - Peter J. Skene
- Allen Institute for Immunology, 615 Westlake Avenue N, Seattle, WA 98109, USA
- Corresponding author
| | - Thomas F. Bumol
- Allen Institute for Immunology, 615 Westlake Avenue N, Seattle, WA 98109, USA
| | - Julian Reading
- Allen Institute for Immunology, 615 Westlake Avenue N, Seattle, WA 98109, USA
- Corresponding author
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