51
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Zhao F, Ma X, Yao B, Lu Q, Chen L. scaDA: A novel statistical method for differential analysis of single-cell chromatin accessibility sequencing data. PLoS Comput Biol 2024; 20:e1011854. [PMID: 39093856 PMCID: PMC11324137 DOI: 10.1371/journal.pcbi.1011854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 08/14/2024] [Accepted: 07/17/2024] [Indexed: 08/04/2024] Open
Abstract
Single-cell ATAC-seq sequencing data (scATAC-seq) has been widely used to investigate chromatin accessibility on the single-cell level. One important application of scATAC-seq data analysis is differential chromatin accessibility (DA) analysis. However, the data characteristics of scATAC-seq such as excessive zeros and large variability of chromatin accessibility across cells impose a unique challenge for DA analysis. Existing statistical methods focus on detecting the mean difference of the chromatin accessible regions while overlooking the distribution difference. Motivated by real data exploration that distribution difference exists among cell types, we introduce a novel composite statistical test named "scaDA", which is based on zero-inflated negative binomial model (ZINB), for performing differential distribution analysis of chromatin accessibility by jointly testing the abundance, prevalence and dispersion simultaneously. Benefiting from both dispersion shrinkage and iterative refinement of mean and prevalence parameter estimates, scaDA demonstrates its superiority to both ZINB-based likelihood ratio tests and published methods by achieving the highest power and best FDR control in a comprehensive simulation study. In addition to demonstrating the highest power in three real sc-multiome data analyses, scaDA successfully identifies differentially accessible regions in microglia from sc-multiome data for an Alzheimer's disease (AD) study that are most enriched in GO terms related to neurogenesis and the clinical phenotype of AD, and AD-associated GWAS SNPs.
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Affiliation(s)
- Fengdi Zhao
- Department of Biostatistics, University of Florida, Gainesville, Florida, United States of America
| | - Xin Ma
- Department of Biostatistics, University of Florida, Gainesville, Florida, United States of America
| | - Bing Yao
- Department of Human Genetics, Emory University, Atlanta, Georgia, United States of America
| | - Qing Lu
- Department of Biostatistics, University of Florida, Gainesville, Florida, United States of America
| | - Li Chen
- Department of Biostatistics, University of Florida, Gainesville, Florida, United States of America
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52
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Chen J, Yu H, Sui K, Fang H, Zhang X, Wang Z. OrganoidPortal: Web server and single-cell transcriptome database featuring reference atlases of organoids. Clin Transl Med 2024; 14:e1794. [PMID: 39113237 PMCID: PMC11306279 DOI: 10.1002/ctm2.1794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2024] [Revised: 07/22/2024] [Accepted: 07/23/2024] [Indexed: 08/11/2024] Open
Affiliation(s)
| | - Hao Yu
- Jinfeng LaboratoryChongqingChina
| | - Ke Sui
- Jinfeng LaboratoryChongqingChina
- Medical Center of Hematology, Xinqiao Hospital of Army Medical University, State Key Laboratory of Trauma and Chemical PoisoningChongqing Key Laboratory of Hematology and MicroenvironmentChongqingChina
| | - Hai Fang
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine at ShanghaiRuijin Hospital, Shanghai Jiao Tong University School of MedicineShanghaiChina
| | - Xi Zhang
- Jinfeng LaboratoryChongqingChina
- Medical Center of Hematology, Xinqiao Hospital of Army Medical University, State Key Laboratory of Trauma and Chemical PoisoningChongqing Key Laboratory of Hematology and MicroenvironmentChongqingChina
| | - Zheng Wang
- Jinfeng LaboratoryChongqingChina
- Medical Center of Hematology, Xinqiao Hospital of Army Medical University, State Key Laboratory of Trauma and Chemical PoisoningChongqing Key Laboratory of Hematology and MicroenvironmentChongqingChina
- Bio‐Med Informatics Research Center & Clinical Research CenterThe Second Affiliated Hospital, Army Medical UniversityChongqingChina
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53
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Saulnier O, Zagozewski J, Liang L, Hendrikse LD, Layug P, Gordon V, Aldinger KA, Haldipur P, Borlase S, Coudière-Morrison L, Cai T, Martell E, Gonzales NM, Palidwor G, Porter CJ, Richard S, Sharif T, Millen KJ, Doble BW, Taylor MD, Werbowetski-Ogilvie TE. A group 3 medulloblastoma stem cell program is maintained by OTX2-mediated alternative splicing. Nat Cell Biol 2024; 26:1233-1246. [PMID: 39025928 PMCID: PMC11321995 DOI: 10.1038/s41556-024-01460-5] [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: 06/17/2023] [Accepted: 06/17/2024] [Indexed: 07/20/2024]
Abstract
OTX2 is a transcription factor and known driver in medulloblastoma (MB), where it is amplified in a subset of tumours and overexpressed in most cases of group 3 and group 4 MB. Here we demonstrate a noncanonical role for OTX2 in group 3 MB alternative splicing. OTX2 associates with the large assembly of splicing regulators complex through protein-protein interactions and regulates a stem cell splicing program. OTX2 can directly or indirectly bind RNA and this may be partially independent of its DNA regulatory functions. OTX2 controls a pro-tumorigenic splicing program that is mirrored in human cerebellar rhombic lip origins. Among the OTX2-regulated differentially spliced genes, PPHLN1 is expressed in the most primitive rhombic lip stem cells, and targeting PPHLN1 splicing reduces tumour growth and enhances survival in vivo. These findings identify OTX2-mediated alternative splicing as a major determinant of cell fate decisions that drive group 3 MB progression.
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Affiliation(s)
- Olivier Saulnier
- The Arthur and Sonia Labatt Brain Tumour Research Centre, The Hospital for Sick Children, Toronto, Ontario, Canada
- Developmental and Stem Cell Biology Program, The Hospital for Sick Children, Toronto, Ontario, Canada
- Genomics and Development of Childhood Cancers, Institut Curie, PSL University, Paris, France
- INSERM U830, Cancer, Heterogeneity, Instability and Plasticity, Institut Curie, PSL University, Paris, France
- SIREDO Oncology Center, Institut Curie, Paris, France
| | - Jamie Zagozewski
- Department of Biochemistry and Medical Genetics, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Lisa Liang
- Department of Biochemistry and Medical Genetics, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Liam D Hendrikse
- The Arthur and Sonia Labatt Brain Tumour Research Centre, The Hospital for Sick Children, Toronto, Ontario, Canada
- Developmental and Stem Cell Biology Program, The Hospital for Sick Children, Toronto, Ontario, Canada
- Department of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada
| | - Paul Layug
- Department of Biochemistry and Medical Genetics, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Victor Gordon
- Department of Biochemistry and Medical Genetics, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Kimberly A Aldinger
- Center for Integrative Brain Research, Seattle Children's Research Institute, Seattle, WA, USA
- Department of Pediatrics, Division of Genetic Medicine, University of Washington, Seattle, WA, USA
- Brotman Baty Institute for Precision Medicine, Seattle, WA, USA
| | - Parthiv Haldipur
- Center for Integrative Brain Research, Seattle Children's Research Institute, Seattle, WA, USA
| | - Stephanie Borlase
- Department of Biochemistry and Medical Genetics, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Ludivine Coudière-Morrison
- Department of Biochemistry and Medical Genetics, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Ting Cai
- Segal Cancer Center, Lady Davis Institute for Medical Research and Gerald Bronfman Department of Oncology, McGill University, Montreal, Quebec, Canada
- Departments of Biochemistry, Human Genetics and Medicine, McGill University, Montreal, Quebec, Canada
| | - Emma Martell
- Department of Pathology, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
- Department of Human Anatomy and Cell Science, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Naomi M Gonzales
- Texas Children's Hospital, Houston, TX, USA
- Department of Pediatrics, Hematology/Oncology, Baylor College of Medicine, Houston, TX, USA
| | - Gareth Palidwor
- Ottawa Bioinformatics Core Facility, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Christopher J Porter
- Ottawa Bioinformatics Core Facility, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Stéphane Richard
- Segal Cancer Center, Lady Davis Institute for Medical Research and Gerald Bronfman Department of Oncology, McGill University, Montreal, Quebec, Canada
- Departments of Biochemistry, Human Genetics and Medicine, McGill University, Montreal, Quebec, Canada
| | - Tanveer Sharif
- Department of Pathology, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
- Department of Human Anatomy and Cell Science, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Kathleen J Millen
- Center for Integrative Brain Research, Seattle Children's Research Institute, Seattle, WA, USA
- Department of Pediatrics, Division of Genetic Medicine, University of Washington, Seattle, WA, USA
- Brotman Baty Institute for Precision Medicine, Seattle, WA, USA
| | - Brad W Doble
- Department of Biochemistry and Medical Genetics, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
- Department of Pediatrics and Child Health, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Michael D Taylor
- The Arthur and Sonia Labatt Brain Tumour Research Centre, The Hospital for Sick Children, Toronto, Ontario, Canada.
- Developmental and Stem Cell Biology Program, The Hospital for Sick Children, Toronto, Ontario, Canada.
- Department of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada.
- Texas Children's Hospital, Houston, TX, USA.
- Department of Pediatrics, Hematology/Oncology, Baylor College of Medicine, Houston, TX, USA.
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada.
- Department of Surgery, University of Toronto, Toronto, Ontario, Canada.
- Texas Children's Cancer and Hematology Center, Houston, TX, USA.
- Department of Neurosurgery, Baylor College of Medicine, Houston, TX, USA.
- Department of Neurosurgery, Texas Children's Hospital, Houston, TX, USA.
- Dan L Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX, USA.
| | - Tamra E Werbowetski-Ogilvie
- Department of Biochemistry and Medical Genetics, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada.
- Texas Children's Hospital, Houston, TX, USA.
- Department of Pediatrics, Hematology/Oncology, Baylor College of Medicine, Houston, TX, USA.
- Texas Children's Cancer and Hematology Center, Houston, TX, USA.
- Dan L Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX, USA.
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54
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Wathieu C, Lavergne A, Xu X, Rolot M, Nemazanyy I, Shostak K, El Hachem N, Maurizy C, Leemans C, Close P, Nguyen L, Desmet C, Tielens S, Dewals BG, Chariot A. Loss of Elp3 blocks intestinal tuft cell differentiation via an mTORC1-Atf4 axis. EMBO J 2024:10.1038/s44318-024-00184-4. [PMID: 39085648 DOI: 10.1038/s44318-024-00184-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 06/25/2024] [Accepted: 07/12/2024] [Indexed: 08/02/2024] Open
Abstract
Intestinal tuft cells are critical for anti-helminth parasite immunity because they produce IL-25, which triggers IL-13 secretion by activated group 2 innate lymphoid cells (ILC2s) to expand both goblet and tuft cells. We show that epithelial Elp3, a tRNA-modifying enzyme, promotes tuft cell differentiation and is consequently critical for IL-25 production, ILC2 activation, goblet cell expansion and control of Nippostrongylus brasiliensis helminth infection in mice. Elp3 is essential for the generation of intestinal immature tuft cells and for the IL-13-dependent induction of glycolytic enzymes such as Hexokinase 1 and Aldolase A. Importantly, loss of epithelial Elp3 in the intestine blocks the codon-dependent translation of the Gator1 subunit Nprl2, an mTORC1 inhibitor, which consequently enhances mTORC1 activation and stabilizes Atf4 in progenitor cells. Likewise, Atf4 overexpression in mouse intestinal epithelium blocks tuft cell differentiation in response to intestinal helminth infection. Collectively, our data define Atf4 as a negative regulator of tuft cells and provide insights into promotion of intestinal type 2 immune response to parasites through tRNA modifications.
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Affiliation(s)
- Caroline Wathieu
- Interdisciplinary Cluster for Applied Genoproteomics, Liege, Belgium
- Laboratory of Cancer Biology, GIGA, University of Liege, Liege, Belgium
| | | | - Xinyi Xu
- Interdisciplinary Cluster for Applied Genoproteomics, Liege, Belgium
- Laboratory of Cancer Biology, GIGA, University of Liege, Liege, Belgium
| | - Marion Rolot
- Laboratory of Immunology-Vaccinology, Fundamental and Applied Research in Animals and Health (FARAH), University of Liege, Liege, Belgium
| | - Ivan Nemazanyy
- Platform for Metabolic Analyses, Structure Fédérative de Recherche Necker, INSERM US24/CNRS UMS 3633, Paris, France
| | - Kateryna Shostak
- Interdisciplinary Cluster for Applied Genoproteomics, Liege, Belgium
- Laboratory of Cancer Biology, GIGA, University of Liege, Liege, Belgium
| | - Najla El Hachem
- Interdisciplinary Cluster for Applied Genoproteomics, Liege, Belgium
- Laboratory of Cancer Signaling, GIGA, University of Liege, Liege, Belgium
| | - Chloé Maurizy
- Interdisciplinary Cluster for Applied Genoproteomics, Liege, Belgium
- Laboratory of Cancer Biology, GIGA, University of Liege, Liege, Belgium
| | - Charlotte Leemans
- Interdisciplinary Cluster for Applied Genoproteomics, Liege, Belgium
- Laboratory of Cancer Signaling, GIGA, University of Liege, Liege, Belgium
| | - Pierre Close
- Interdisciplinary Cluster for Applied Genoproteomics, Liege, Belgium
- Laboratory of Cancer Signaling, GIGA, University of Liege, Liege, Belgium
- WELBIO department, WEL Research Institute, avenue Pasteur, 6, 1300, Wavre, Belgium
| | - Laurent Nguyen
- Interdisciplinary Cluster for Applied Genoproteomics, Liege, Belgium
- WELBIO department, WEL Research Institute, avenue Pasteur, 6, 1300, Wavre, Belgium
- Laboratory of Molecular Regulation of Neurogenesis, University of Liege, Liege, Belgium
| | - Christophe Desmet
- Interdisciplinary Cluster for Applied Genoproteomics, Liege, Belgium
- Laboratory of Cellular and Molecular Immunology, University of Liege, Liege, GIGA-I3, Belgium
| | - Sylvia Tielens
- Interdisciplinary Cluster for Applied Genoproteomics, Liege, Belgium
- Laboratory of Cancer Biology, GIGA, University of Liege, Liege, Belgium
| | - Benjamin G Dewals
- Laboratory of Immunology-Vaccinology, Fundamental and Applied Research in Animals and Health (FARAH), University of Liege, Liege, Belgium
| | - Alain Chariot
- Interdisciplinary Cluster for Applied Genoproteomics, Liege, Belgium.
- Laboratory of Cancer Biology, GIGA, University of Liege, Liege, Belgium.
- WELBIO department, WEL Research Institute, avenue Pasteur, 6, 1300, Wavre, Belgium.
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55
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Kim GD, Lim C, Park J. A practical handbook on single-cell RNA sequencing data quality control and downstream analysis. Mol Cells 2024; 47:100103. [PMID: 39094968 DOI: 10.1016/j.mocell.2024.100103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2024] [Revised: 07/19/2024] [Accepted: 07/29/2024] [Indexed: 08/04/2024] Open
Abstract
Advancements in single-cell analysis have facilitated high-resolution observation of the transcriptome in individual cells. However, standards for obtaining high-quality cells and data analysis pipelines remain variable. Here, we provide the groundwork for improving the quality of single-cell analysis by delineating guidelines for selecting high-quality cells and considerations throughout the analysis. This review will streamline researchers' access to single-cell analysis and serve as a valuable guide for analysis.
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Affiliation(s)
- Gyeong Dae Kim
- School of Life Sciences, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Republic of Korea
| | - Chaemin Lim
- School of Life Sciences, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Republic of Korea
| | - Jihwan Park
- School of Life Sciences, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Republic of Korea.
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56
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Liu A, Liu G, Wang X, Yan D, Zhang J, Wei L. Comprehensive analysis of single-cell RNA and bulk RNA sequencing based on M2 tumor-associated macrophage and angiogenesis-related genes to assess prognosis and therapeutic response in lung adenocarcinoma. Heliyon 2024; 10:e34784. [PMID: 39148979 PMCID: PMC11325380 DOI: 10.1016/j.heliyon.2024.e34784] [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: 06/13/2023] [Revised: 07/15/2024] [Accepted: 07/17/2024] [Indexed: 08/17/2024] Open
Abstract
M2 tumor-associated macrophage (M2 TAM), a crucial component of the tumor microenvironment, has a significant impact on tumor invasion and metastasis in the form of angiogenesis for lung adenocarcinoma (LUAD). In this study, both single-cell RNA and bulk RNA sequencing data were analyzed to identify 12 M2 TAM and angiogenesis-related genes (OLR1, CTSL, HLA-DPB1, NUPR1, ALOX5, DOCK4, CSF2RB, PTPN6, TNFSF12, HNRNPA2B1, NCL, and BIRC2). These genes were used to construct a prognostic signature, which was subsequently validated using an external cohort. Moreover, the immune profile analysis indicated that the low-risk group exhibited a distinct immune cell infiltration and relatively active status. Importantly, the prognostic signature was closely associated with PD-1, CTLA4, tumor mutation burden, and anti-cancer drug sensitivity. In summary, this study proposes a new prognostic signature for patients with LUAD based on M2 TAM and angiogenesis-related genes. The signature forecasts the prognosis of LUAD by an independent manner, reveals the potential molecular mechanisms involved in tumor immune-related functions, and offers appropriate clinical strategies for the treatment of patients with LUAD.
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Affiliation(s)
- Anbang Liu
- Department of Thoracic Surgery, Qingdao Municipal Hospital, 266000, Qingdao, Shandong, China
| | - Gengqiu Liu
- Department of Thoracic Surgery, The Seventh Affiliated Hospital, Sun Yat-sen University, No. 628, Zhenyuan Road, Guangming Dist., Shenzhen, 518107, China
| | - Xiaohuai Wang
- Department of Thoracic Surgery, The Seventh Affiliated Hospital, Sun Yat-sen University, No. 628, Zhenyuan Road, Guangming Dist., Shenzhen, 518107, China
| | - Dongqing Yan
- Department of Thoracic Surgery, The Seventh Affiliated Hospital, Sun Yat-sen University, No. 628, Zhenyuan Road, Guangming Dist., Shenzhen, 518107, China
| | - Junhang Zhang
- Department of Thoracic Surgery, The Seventh Affiliated Hospital, Sun Yat-sen University, No. 628, Zhenyuan Road, Guangming Dist., Shenzhen, 518107, China
| | - Li Wei
- Department of Thoracic Surgery, The Seventh Affiliated Hospital, Sun Yat-sen University, No. 628, Zhenyuan Road, Guangming Dist., Shenzhen, 518107, China
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57
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Wu J, Fan C, Kabir AU, Krchma K, Kim M, Kwon Y, Xing X, Wang T, Choi K. Baf155 controls hematopoietic differentiation and regeneration through chromatin priming. Cell Rep 2024; 43:114558. [PMID: 39088321 DOI: 10.1016/j.celrep.2024.114558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 05/06/2024] [Accepted: 07/14/2024] [Indexed: 08/03/2024] Open
Abstract
Chromatin priming promotes cell-type-specific gene expression, lineage differentiation, and development. The mechanism of chromatin priming has not been fully understood. Here, we report that mouse hematopoietic stem and progenitor cells (HSPCs) lacking the Baf155 subunit of the BAF (BRG1/BRM-associated factor) chromatin remodeling complex produce a significantly reduced number of mature blood cells, leading to a failure of hematopoietic regeneration upon transplantation and 5-fluorouracil (5-FU) injury. Baf155-deficient HSPCs generate particularly fewer neutrophils, B cells, and CD8+ T cells at homeostasis, supporting a more immune-suppressive tumor microenvironment and enhanced tumor growth. Single-nucleus multiomics analysis reveals that Baf155-deficient HSPCs fail to establish accessible chromatin in selected regions that are enriched for putative enhancers and binding motifs of hematopoietic lineage transcription factors. Our study provides a fundamental mechanistic understanding of the role of Baf155 in hematopoietic lineage chromatin priming and the functional consequences of Baf155 deficiency in regeneration and tumor immunity.
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Affiliation(s)
- Jun Wu
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Changxu Fan
- Department of Genetics, Washington University School of Medicine, St. Louis, MO 63110, USA; Edison Family Center for Genome Sciences and Systems Biology, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Ashraf Ul Kabir
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Karen Krchma
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Minseo Kim
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Yoojung Kwon
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Xiaoyun Xing
- Department of Genetics, Washington University School of Medicine, St. Louis, MO 63110, USA; Edison Family Center for Genome Sciences and Systems Biology, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Ting Wang
- Department of Genetics, Washington University School of Medicine, St. Louis, MO 63110, USA; Edison Family Center for Genome Sciences and Systems Biology, Washington University School of Medicine, St. Louis, MO 63110, USA; McDonnell Genome Institute, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Kyunghee Choi
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110, USA.
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58
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Singh A, Khiabanian H. Feature selection followed by a novel residuals-based normalization that includes variance stabilization simplifies and improves single-cell gene expression analysis. BMC Bioinformatics 2024; 25:248. [PMID: 39080559 PMCID: PMC11290295 DOI: 10.1186/s12859-024-05872-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2024] [Accepted: 07/16/2024] [Indexed: 08/02/2024] Open
Abstract
Normalization is a crucial step in the analysis of single-cell RNA-sequencing (scRNA-seq) counts data. Its principal objectives are reduction of systematic biases primarily introduced through technical sources and transformation of counts to make them more amenable for the application of established statistical frameworks. In the standard workflows, normalization is followed by feature selection to identify highly variable genes (HVGs) that capture most of the biologically meaningful variation across the cells. Here, we make the case for a revised workflow by proposing a simple feature selection method and showing that we can perform feature selection before normalization by relying on observed counts. We highlight that the feature selection step can be used to not only select HVGs but to also identify stable genes. We further propose a novel variance stabilization transformation inclusive residuals-based normalization method that in fact relies on the stable genes to inform the reduction of systematic biases. We demonstrate significant improvements in downstream clustering analyses through the application of our proposed methods on biological truth-known as well as simulated counts datasets. We have implemented this novel workflow for analyzing high-throughput scRNA-seq data in an R package called Piccolo.
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Affiliation(s)
- Amartya Singh
- Center for Systems and Computational Biology, Rutgers Cancer Institute of New Jersey, Rutgers University, New Brunswick, NJ, USA.
| | - Hossein Khiabanian
- Center for Systems and Computational Biology, Rutgers Cancer Institute of New Jersey, Rutgers University, New Brunswick, NJ, USA
- Department of Pathology and Laboratory Medicine, Rutgers Robert Wood Johnson Medical School, Rutgers University, New Brunswick, NJ, USA
- Regeneron Genetics Center, Regeneron Pharmaceuticals, Tarrytown, NY, USA
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59
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Xu H, Lotfy P, Gelb S, Pragana A, Hehnly C, Byer LIJ, Shipley FB, Zawadzki ME, Cui J, Deng L, Taylor M, Webb M, Lidov HGW, Andermann ML, Chiu IM, Ordovas-Montanes J, Lehtinen MK. The choroid plexus synergizes with immune cells during neuroinflammation. Cell 2024:S0092-8674(24)00717-7. [PMID: 39089253 DOI: 10.1016/j.cell.2024.07.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 04/19/2024] [Accepted: 07/01/2024] [Indexed: 08/03/2024]
Abstract
The choroid plexus (ChP) is a vital brain barrier and source of cerebrospinal fluid (CSF). Here, we use longitudinal two-photon imaging in awake mice and single-cell transcriptomics to elucidate the mechanisms of ChP regulation of brain inflammation. We used intracerebroventricular injections of lipopolysaccharides (LPS) to model meningitis in mice and observed that neutrophils and monocytes accumulated in the ChP stroma and surged across the epithelial barrier into the CSF. Bi-directional recruitment of monocytes from the periphery and, unexpectedly, macrophages from the CSF to the ChP helped eliminate neutrophils and repair the barrier. Transcriptomic analyses detailed the molecular steps accompanying this process and revealed that ChP epithelial cells transiently specialize to nurture immune cells, coordinating their recruitment, survival, and differentiation as well as regulation of the tight junctions that control the permeability of the ChP brain barrier. Collectively, we provide a mechanistic understanding and a comprehensive roadmap of neuroinflammation at the ChP brain barrier.
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Affiliation(s)
- Huixin Xu
- Department of Pathology, Boston Children's Hospital and Harvard Medical School, Boston, MA 02115, USA
| | - Peter Lotfy
- Division of Gastroenterology, Hepatology, and Nutrition, Boston Children's Hospital, Boston, MA 02115, USA; Graduate Program in Biological and Biomedical Sciences, Harvard Medical School, Boston, MA 02115, USA; Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Sivan Gelb
- Department of Pathology, Boston Children's Hospital and Harvard Medical School, Boston, MA 02115, USA
| | - Aja Pragana
- Department of Pathology, Boston Children's Hospital and Harvard Medical School, Boston, MA 02115, USA
| | - Christine Hehnly
- Department of Pathology, Boston Children's Hospital and Harvard Medical School, Boston, MA 02115, USA
| | - Lillian I J Byer
- Department of Pathology, Boston Children's Hospital and Harvard Medical School, Boston, MA 02115, USA
| | - Frederick B Shipley
- Department of Pathology, Boston Children's Hospital and Harvard Medical School, Boston, MA 02115, USA; Graduate Program in Biophysics, Harvard University, Cambridge, MA 02138, USA
| | - Miriam E Zawadzki
- Department of Pathology, Boston Children's Hospital and Harvard Medical School, Boston, MA 02115, USA; Graduate Program in Biological and Biomedical Sciences, Harvard Medical School, Boston, MA 02115, USA; Harvard MD-PhD Program, Harvard Medical School, Boston, MA 02115, USA
| | - Jin Cui
- Department of Pathology, Boston Children's Hospital and Harvard Medical School, Boston, MA 02115, USA
| | - Liwen Deng
- Department of Immunology, Blavatnik Institute, Harvard Medical School, Boston, MA 02115, USA
| | - Milo Taylor
- Department of Pathology, Boston Children's Hospital and Harvard Medical School, Boston, MA 02115, USA; Harvard College, Harvard University, Cambridge, MA 02138, USA
| | - Mya Webb
- Department of Pathology, Boston Children's Hospital and Harvard Medical School, Boston, MA 02115, USA
| | - Hart G W Lidov
- Department of Pathology, Boston Children's Hospital and Harvard Medical School, Boston, MA 02115, USA
| | - Mark L Andermann
- Harvard MD-PhD Program, Harvard Medical School, Boston, MA 02115, USA; Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, Beth Israel Deaconess Medical Center, Boston, MA 02215, USA; Department of Neurobiology, Harvard Medical School, Boston, MA 02115, USA
| | - Isaac M Chiu
- Department of Immunology, Blavatnik Institute, Harvard Medical School, Boston, MA 02115, USA
| | - Jose Ordovas-Montanes
- Division of Gastroenterology, Hepatology, and Nutrition, Boston Children's Hospital, Boston, MA 02115, USA; Graduate Program in Biological and Biomedical Sciences, Harvard Medical School, Boston, MA 02115, USA; Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Harvard Stem Cell Institute, Cambridge, MA 02138, USA; Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA
| | - Maria K Lehtinen
- Department of Pathology, Boston Children's Hospital and Harvard Medical School, Boston, MA 02115, USA; Graduate Program in Biological and Biomedical Sciences, Harvard Medical School, Boston, MA 02115, USA; Graduate Program in Biophysics, Harvard University, Cambridge, MA 02138, USA; Harvard MD-PhD Program, Harvard Medical School, Boston, MA 02115, USA; Harvard Stem Cell Institute, Cambridge, MA 02138, USA.
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60
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Bormann D, Knoflach M, Poreba E, Riedl CJ, Testa G, Orset C, Levilly A, Cottereau A, Jauk P, Hametner S, Stranzl N, Golabi B, Copic D, Klas K, Direder M, Kühtreiber H, Salek M, Zur Nedden S, Baier-Bitterlich G, Kiechl S, Haider C, Endmayr V, Höftberger R, Ankersmit HJ, Mildner M. Single-nucleus RNA sequencing reveals glial cell type-specific responses to ischemic stroke in male rodents. Nat Commun 2024; 15:6232. [PMID: 39043661 PMCID: PMC11266704 DOI: 10.1038/s41467-024-50465-z] [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: 01/08/2024] [Accepted: 07/09/2024] [Indexed: 07/25/2024] Open
Abstract
Neuroglia critically shape the brain´s response to ischemic stroke. However, their phenotypic heterogeneity impedes a holistic understanding of the cellular composition of the early ischemic lesion. Here we present a single cell resolution transcriptomics dataset of the brain´s acute response to infarction. Oligodendrocyte lineage cells and astrocytes range among the most transcriptionally perturbed populations and exhibit infarction- and subtype-specific molecular signatures. Specifically, we find infarction restricted proliferating oligodendrocyte precursor cells (OPCs), mature oligodendrocytes and reactive astrocytes, exhibiting transcriptional commonalities in response to ischemic injury. OPCs and reactive astrocytes are involved in a shared immuno-glial cross talk with stroke-specific myeloid cells. Within the perilesional zone, osteopontin positive myeloid cells accumulate in close proximity to CD44+ proliferating OPCs and reactive astrocytes. In vitro, osteopontin increases the migratory capacity of OPCs. Collectively, our study highlights molecular cross talk events which might govern the cellular composition of acutely infarcted brain tissue.
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Affiliation(s)
- Daniel Bormann
- Applied Immunology Laboratory, Department of Thoracic Surgery, Medical University of Vienna, 1090, Vienna, Austria
- Aposcience AG, 1200, Vienna, Austria
| | - Michael Knoflach
- Department of Neurology, Medical University of Innsbruck, Anichstraße 35, 6020, Innsbruck, Austria
- VASCage, Centre on Clinical Stroke Research, 6020, Innsbruck, Austria
| | - Emilia Poreba
- Department of Dermatology, Medical University of Vienna, 1090, Vienna, Austria
| | - Christian J Riedl
- Division of Neuropathology and Neurochemistry, Department of Neurology, Medical University of Vienna, 1090, Vienna, Austria
- Comprehensive Center for Clinical Neurosciences and Mental Health, Medical University of Vienna, Vienna, Austria
| | - Giulia Testa
- Division of Neuropathology and Neurochemistry, Department of Neurology, Medical University of Vienna, 1090, Vienna, Austria
- Comprehensive Center for Clinical Neurosciences and Mental Health, Medical University of Vienna, Vienna, Austria
| | - Cyrille Orset
- Normandie University, UNICAEN, ESR3P, INSERM UMR-S U1237, Physiopathology and Imaging of Neurological Disorders (PhIND), Institut Blood and Brain @ Caen-Normandie (BB@C), GIP Cyceron, Caen, France
- Department of Clinical Research, Caen-Normandie University Hospital, Caen, France
| | - Anthony Levilly
- Normandie University, UNICAEN, ESR3P, INSERM UMR-S U1237, Physiopathology and Imaging of Neurological Disorders (PhIND), Institut Blood and Brain @ Caen-Normandie (BB@C), GIP Cyceron, Caen, France
- Department of Clinical Research, Caen-Normandie University Hospital, Caen, France
| | - Andréa Cottereau
- Normandie University, UNICAEN, ESR3P, INSERM UMR-S U1237, Physiopathology and Imaging of Neurological Disorders (PhIND), Institut Blood and Brain @ Caen-Normandie (BB@C), GIP Cyceron, Caen, France
- Department of Clinical Research, Caen-Normandie University Hospital, Caen, France
| | - Philipp Jauk
- Division of Neuropathology and Neurochemistry, Department of Neurology, Medical University of Vienna, 1090, Vienna, Austria
- Comprehensive Center for Clinical Neurosciences and Mental Health, Medical University of Vienna, Vienna, Austria
- Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, 1090, Vienna, Austria
| | - Simon Hametner
- Division of Neuropathology and Neurochemistry, Department of Neurology, Medical University of Vienna, 1090, Vienna, Austria
- Comprehensive Center for Clinical Neurosciences and Mental Health, Medical University of Vienna, Vienna, Austria
| | - Nadine Stranzl
- Division of Neuropathology and Neurochemistry, Department of Neurology, Medical University of Vienna, 1090, Vienna, Austria
- Comprehensive Center for Clinical Neurosciences and Mental Health, Medical University of Vienna, Vienna, Austria
| | - Bahar Golabi
- Department of Dermatology, Medical University of Vienna, 1090, Vienna, Austria
| | - Dragan Copic
- Applied Immunology Laboratory, Department of Thoracic Surgery, Medical University of Vienna, 1090, Vienna, Austria
- Aposcience AG, 1200, Vienna, Austria
- Division of Nephrology and Dialysis, Department of Internal Medicine III, Medical University of Vienna, 1090, Vienna, Austria
| | - Katharina Klas
- Applied Immunology Laboratory, Department of Thoracic Surgery, Medical University of Vienna, 1090, Vienna, Austria
- Aposcience AG, 1200, Vienna, Austria
| | - Martin Direder
- Applied Immunology Laboratory, Department of Thoracic Surgery, Medical University of Vienna, 1090, Vienna, Austria
- Aposcience AG, 1200, Vienna, Austria
- Department of Orthopedics and Trauma Surgery, Medical University of Vienna, 1090, Vienna, Austria
| | - Hannes Kühtreiber
- Applied Immunology Laboratory, Department of Thoracic Surgery, Medical University of Vienna, 1090, Vienna, Austria
- Aposcience AG, 1200, Vienna, Austria
| | - Melanie Salek
- Applied Immunology Laboratory, Department of Thoracic Surgery, Medical University of Vienna, 1090, Vienna, Austria
- Aposcience AG, 1200, Vienna, Austria
| | - Stephanie Zur Nedden
- Institute of Neurobiochemistry, CCB-Biocenter, Medical University of Innsbruck, 6020, Innsbruck, Austria
| | - Gabriele Baier-Bitterlich
- Institute of Neurobiochemistry, CCB-Biocenter, Medical University of Innsbruck, 6020, Innsbruck, Austria
| | - Stefan Kiechl
- Department of Neurology, Medical University of Innsbruck, Anichstraße 35, 6020, Innsbruck, Austria
- VASCage, Centre on Clinical Stroke Research, 6020, Innsbruck, Austria
| | - Carmen Haider
- Division of Neuropathology and Neurochemistry, Department of Neurology, Medical University of Vienna, 1090, Vienna, Austria
- Comprehensive Center for Clinical Neurosciences and Mental Health, Medical University of Vienna, Vienna, Austria
| | - Verena Endmayr
- Division of Neuropathology and Neurochemistry, Department of Neurology, Medical University of Vienna, 1090, Vienna, Austria
- Comprehensive Center for Clinical Neurosciences and Mental Health, Medical University of Vienna, Vienna, Austria
| | - Romana Höftberger
- Division of Neuropathology and Neurochemistry, Department of Neurology, Medical University of Vienna, 1090, Vienna, Austria
- Comprehensive Center for Clinical Neurosciences and Mental Health, Medical University of Vienna, Vienna, Austria
| | - Hendrik J Ankersmit
- Applied Immunology Laboratory, Department of Thoracic Surgery, Medical University of Vienna, 1090, Vienna, Austria.
- Aposcience AG, 1200, Vienna, Austria.
| | - Michael Mildner
- Department of Dermatology, Medical University of Vienna, 1090, Vienna, Austria.
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61
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Berrell N, Monkman J, Donovan M, Blick T, O'Byrne K, Ladwa R, Tan CW, Kulasinghe A. Spatial resolution of the head and neck cancer tumor microenvironment to identify tumor and stromal features associated with therapy response. Immunol Cell Biol 2024. [PMID: 39048134 DOI: 10.1111/imcb.12811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Revised: 05/29/2024] [Accepted: 07/05/2024] [Indexed: 07/27/2024]
Abstract
Head and neck cancer (HNC) is the seventh most common cancer globally, resulting in 440 000 deaths per year. While there have been advancements in chemoradiotherapy and surgery, relapse occurs in more than half of HNCs, and these patients have a median survival of 10 months and a 2-year survival of < 20%. Only a subset of patients displays durable benefits from immunotherapies in metastatic and recurrent HNC, making it critical to understand the tumor microenvironment (TME) underpinning therapy responses in HNC. To recognize biological differences within the TME that may be predictive of immunotherapy response, we applied cutting-edge geospatial whole-transcriptome profiling (NanoString GeoMx Digital Spatial Profiler) and spatial proteomics profiling (Akoya PhenoCycler-Fusion) on a tumor microarray consisting of 25 cores from 12 patients that included 4 immunotherapy-unresponsive (8 cores) and 2 immunotherapy-responsive patients (5 cores), as well as 6 immunotherapy naïve patients (12 cores). Through high-plex, regional-based transcriptomic mapping of the tumor and TME, pathways involved with the complement system and hypoxia were identified to be differentially expressed in patients who went on to experience a poor immunotherapy response. Single-cell, targeted proteomic analysis found that immune cell infiltration of the cancer cell mass and interactions of CD8 T cells with tumor and other immune cells were associated with positive immunotherapy response. The relative abundance of specific tumor phenotypes and their interactions with various immune cells was identified to be different between response groups. This study demonstrates how spatial transcriptomics and proteomics can resolve novel alterations in the TME of HNC that may contribute to therapy sensitivity and resistance.
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Affiliation(s)
- Naomi Berrell
- Frazer Institute, Faculty of Medicine, The University of Queensland, Brisbane, QLD, Australia
- Wesley Research Institute, Level 8 East Wing, The Wesley Hospital, Auchenflower, QLD, Australia
| | - James Monkman
- Frazer Institute, Faculty of Medicine, The University of Queensland, Brisbane, QLD, Australia
| | - Meg Donovan
- Wesley Research Institute, Level 8 East Wing, The Wesley Hospital, Auchenflower, QLD, Australia
| | - Tony Blick
- Frazer Institute, Faculty of Medicine, The University of Queensland, Brisbane, QLD, Australia
| | - Ken O'Byrne
- Princess Alexandra Hospital, Brisbane, QLD, Australia
| | - Rahul Ladwa
- Frazer Institute, Faculty of Medicine, The University of Queensland, Brisbane, QLD, Australia
- Princess Alexandra Hospital, Brisbane, QLD, Australia
| | - Chin Wee Tan
- Frazer Institute, Faculty of Medicine, The University of Queensland, Brisbane, QLD, Australia
- Bioinformatics Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Melbourne, VIC, Australia
- Department of Medical Biology, Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Parkville, VIC, Australia
| | - Arutha Kulasinghe
- Frazer Institute, Faculty of Medicine, The University of Queensland, Brisbane, QLD, Australia
- Wesley Research Institute, Level 8 East Wing, The Wesley Hospital, Auchenflower, QLD, Australia
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62
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Meng B, Zhao N, Mlcochova P, Ferreira IATM, Ortmann BM, Davis T, Wit N, Rehwinkel J, Cook S, Maxwell PH, Nathan JA, Gupta RK. Hypoxia drives HIF2-dependent reversible macrophage cell cycle entry. Cell Rep 2024; 43:114471. [PMID: 38996069 DOI: 10.1016/j.celrep.2024.114471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2024] [Revised: 05/22/2024] [Accepted: 06/24/2024] [Indexed: 07/14/2024] Open
Abstract
Low-oxygen conditions (hypoxia) have been associated primarily with cell-cycle arrest in dividing cells. Macrophages are typically quiescent in G0 but can proliferate in response to tissue signals. Here we show that hypoxia (1% oxygen tension) results in reversible entry into the cell cycle in macrophages. Cell cycle progression is largely limited to G0-G1/S phase transition with little progression to G2/M. This cell cycle transitioning is triggered by an HIF2α-directed transcriptional program. The response is accompanied by increased expression of cell-cycle-associated proteins, including CDK1, which is known to phosphorylate SAMHD1 at T592 and thereby regulate antiviral activity. Prolyl hydroxylase (PHD) inhibitors are able to recapitulate HIF2α-dependent cell cycle entry in macrophages. Finally, tumor-associated macrophages (TAMs) in lung cancers exhibit transcriptomic profiles representing responses to low oxygen and cell cycle progression at the single-cell level. These findings have implications for inflammation and tumor progression/metastasis where low-oxygen environments are common.
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Affiliation(s)
- Bo Meng
- Cambridge Institute of Therapeutic Immunology and Infectious Disease (CITIID), Cambridge, UK; Department of Medicine, University of Cambridge, Cambridge, UK.
| | - Na Zhao
- University of Oxford, Oxford, UK
| | - Petra Mlcochova
- Cambridge Institute of Therapeutic Immunology and Infectious Disease (CITIID), Cambridge, UK; Department of Medicine, University of Cambridge, Cambridge, UK
| | - Isabella A T M Ferreira
- Cambridge Institute of Therapeutic Immunology and Infectious Disease (CITIID), Cambridge, UK; Department of Medicine, University of Cambridge, Cambridge, UK
| | - Brian M Ortmann
- Cambridge Institute of Therapeutic Immunology and Infectious Disease (CITIID), Cambridge, UK; Department of Medicine, University of Cambridge, Cambridge, UK
| | | | - Niek Wit
- Cambridge Institute of Therapeutic Immunology and Infectious Disease (CITIID), Cambridge, UK; Department of Medicine, University of Cambridge, Cambridge, UK
| | | | | | | | - James A Nathan
- Cambridge Institute of Therapeutic Immunology and Infectious Disease (CITIID), Cambridge, UK; Department of Medicine, University of Cambridge, Cambridge, UK
| | - Ravindra K Gupta
- Cambridge Institute of Therapeutic Immunology and Infectious Disease (CITIID), Cambridge, UK; Department of Medicine, University of Cambridge, Cambridge, UK; Africa Health Research Institute, Durban, KwaZulu Natal, South Africa.
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63
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Sun F, Li H, Sun D, Fu S, Gu L, Shao X, Wang Q, Dong X, Duan B, Xing F, Wu J, Xiao M, Zhao F, Han JDJ, Liu Q, Fan X, Li C, Wang C, Shi T. Single-cell omics: experimental workflow, data analyses and applications. SCIENCE CHINA. LIFE SCIENCES 2024:10.1007/s11427-023-2561-0. [PMID: 39060615 DOI: 10.1007/s11427-023-2561-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Accepted: 04/18/2024] [Indexed: 07/28/2024]
Abstract
Cells are the fundamental units of biological systems and exhibit unique development trajectories and molecular features. Our exploration of how the genomes orchestrate the formation and maintenance of each cell, and control the cellular phenotypes of various organismsis, is both captivating and intricate. Since the inception of the first single-cell RNA technology, technologies related to single-cell sequencing have experienced rapid advancements in recent years. These technologies have expanded horizontally to include single-cell genome, epigenome, proteome, and metabolome, while vertically, they have progressed to integrate multiple omics data and incorporate additional information such as spatial scRNA-seq and CRISPR screening. Single-cell omics represent a groundbreaking advancement in the biomedical field, offering profound insights into the understanding of complex diseases, including cancers. Here, we comprehensively summarize recent advances in single-cell omics technologies, with a specific focus on the methodology section. This overview aims to guide researchers in selecting appropriate methods for single-cell sequencing and related data analysis.
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Affiliation(s)
- Fengying Sun
- Department of Clinical Laboratory, the Affiliated Wuhu Hospital of East China Normal University (The Second People's Hospital of Wuhu City), Wuhu, 241000, China
| | - Haoyan Li
- Pharmaceutical Informatics Institute, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Dongqing Sun
- Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration (Tongji University), Ministry of Education, Orthopaedic Department, Tongji Hospital, Bioinformatics Department, School of Life Sciences and Technology, Tongji University, Shanghai, 200082, China
- Frontier Science Center for Stem Cells, School of Life Sciences and Technology, Tongji University, Shanghai, 200092, China
| | - Shaliu Fu
- Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration (Tongji University), Ministry of Education, Orthopaedic Department, Tongji Hospital, Bioinformatics Department, School of Life Sciences and Technology, Tongji University, Shanghai, 200082, China
- Translational Medical Center for Stem Cell Therapy and Institute for Regenerative Medicine, Shanghai East Hospital, Bioinformatics Department, School of Life Sciences and Technology, Tongji University, Shanghai, 200082, China
- Research Institute of Intelligent Computing, Zhejiang Lab, Hangzhou, 311121, China
- Shanghai Research Institute for Intelligent Autonomous Systems, Shanghai, 201210, China
| | - Lei Gu
- Center for Single-cell Omics, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Xin Shao
- Pharmaceutical Informatics Institute, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, China
- National Key Laboratory of Chinese Medicine Modernization, Innovation Center of Yangtze River Delta, Zhejiang University, Jiaxing, 314103, China
| | - Qinqin Wang
- Center for Single-cell Omics, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Xin Dong
- Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration (Tongji University), Ministry of Education, Orthopaedic Department, Tongji Hospital, Bioinformatics Department, School of Life Sciences and Technology, Tongji University, Shanghai, 200082, China
- Frontier Science Center for Stem Cells, School of Life Sciences and Technology, Tongji University, Shanghai, 200092, China
| | - Bin Duan
- Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration (Tongji University), Ministry of Education, Orthopaedic Department, Tongji Hospital, Bioinformatics Department, School of Life Sciences and Technology, Tongji University, Shanghai, 200082, China
- Translational Medical Center for Stem Cell Therapy and Institute for Regenerative Medicine, Shanghai East Hospital, Bioinformatics Department, School of Life Sciences and Technology, Tongji University, Shanghai, 200082, China
- Research Institute of Intelligent Computing, Zhejiang Lab, Hangzhou, 311121, China
- Shanghai Research Institute for Intelligent Autonomous Systems, Shanghai, 201210, China
| | - Feiyang Xing
- Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration (Tongji University), Ministry of Education, Orthopaedic Department, Tongji Hospital, Bioinformatics Department, School of Life Sciences and Technology, Tongji University, Shanghai, 200082, China
- Frontier Science Center for Stem Cells, School of Life Sciences and Technology, Tongji University, Shanghai, 200092, China
| | - Jun Wu
- Center for Bioinformatics and Computational Biology, Shanghai Key Laboratory of Regulatory Biology, the Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, 200241, China
| | - Minmin Xiao
- Department of Clinical Laboratory, the Affiliated Wuhu Hospital of East China Normal University (The Second People's Hospital of Wuhu City), Wuhu, 241000, China.
| | - Fangqing Zhao
- Beijing Institutes of Life Science, Chinese Academy of Sciences, Beijing, 100101, China.
| | - Jing-Dong J Han
- Peking-Tsinghua Center for Life Sciences, Academy for Advanced Interdisciplinary Studies, Center for Quantitative Biology (CQB), Peking University, Beijing, 100871, China.
| | - Qi Liu
- Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration (Tongji University), Ministry of Education, Orthopaedic Department, Tongji Hospital, Bioinformatics Department, School of Life Sciences and Technology, Tongji University, Shanghai, 200082, China.
- Translational Medical Center for Stem Cell Therapy and Institute for Regenerative Medicine, Shanghai East Hospital, Bioinformatics Department, School of Life Sciences and Technology, Tongji University, Shanghai, 200082, China.
- Research Institute of Intelligent Computing, Zhejiang Lab, Hangzhou, 311121, China.
- Shanghai Research Institute for Intelligent Autonomous Systems, Shanghai, 201210, China.
| | - Xiaohui Fan
- Pharmaceutical Informatics Institute, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, China.
- National Key Laboratory of Chinese Medicine Modernization, Innovation Center of Yangtze River Delta, Zhejiang University, Jiaxing, 314103, China.
- Zhejiang Key Laboratory of Precision Diagnosis and Therapy for Major Gynecological Diseases, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, 310006, China.
| | - Chen Li
- Center for Single-cell Omics, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China.
| | - Chenfei Wang
- Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration (Tongji University), Ministry of Education, Orthopaedic Department, Tongji Hospital, Bioinformatics Department, School of Life Sciences and Technology, Tongji University, Shanghai, 200082, China.
- Frontier Science Center for Stem Cells, School of Life Sciences and Technology, Tongji University, Shanghai, 200092, China.
| | - Tieliu Shi
- Department of Clinical Laboratory, the Affiliated Wuhu Hospital of East China Normal University (The Second People's Hospital of Wuhu City), Wuhu, 241000, China.
- Center for Bioinformatics and Computational Biology, Shanghai Key Laboratory of Regulatory Biology, the Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, 200241, China.
- Key Laboratory of Advanced Theory and Application in Statistics and Data Science-MOE, School of Statistics, East China Normal University, Shanghai, 200062, China.
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64
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Mattar P, Reginato A, Lavados C, Das D, Kalyani M, Martinez-Lopez N, Sharma M, Skovbjerg G, Skytte JL, Roostalu U, Subbarayan R, Picarda E, Zang X, Zhang J, Guha C, Schwartz G, Rajbhandari P, Singh R. Insulin and leptin oscillations license food-entrained browning and metabolic flexibility. Cell Rep 2024; 43:114390. [PMID: 38900636 DOI: 10.1016/j.celrep.2024.114390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 04/23/2024] [Accepted: 06/06/2024] [Indexed: 06/22/2024] Open
Abstract
Timed feeding drives adipose browning, although the integrative mechanisms for the same remain unclear. Here, we show that twice-a-night (TAN) feeding generates biphasic oscillations of circulating insulin and leptin, representing their entrainment by timed feeding. Insulin and leptin surges lead to marked cellular, functional, and metabolic remodeling of subcutaneous white adipose tissue (sWAT), resulting in increased energy expenditure. Single-cell RNA-sequencing (scRNA-seq) analyses and flow cytometry demonstrate a role for insulin and leptin surges in innate lymphoid type 2 (ILC2) cell recruitment and sWAT browning, since sWAT depot denervation or loss of leptin or insulin receptor signaling or ILC2 recruitment each dampens TAN feeding-induced sWAT remodeling and energy expenditure. Consistently, recreating insulin and leptin oscillations via once-a-day timed co-injections is sufficient to favorably remodel innervated sWAT. Innervation is necessary for sWAT remodeling, since denervation of sWAT, but not brown adipose tissue (BAT), blocks TAN-induced sWAT remodeling and resolution of inflammation. In sum, reorganization of nutrient-sensitive pathways remodels sWAT and drives the metabolic benefits of timed feeding.
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Affiliation(s)
- Pamela Mattar
- Department of Medicine, Division of Digestive Diseases, University of Los Angeles, Los Angeles, CA, USA
| | - Andressa Reginato
- Department of Developmental and Molecular Biology, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Christian Lavados
- Department of Developmental and Molecular Biology, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Debajyoti Das
- Department of Medicine, Division of Digestive Diseases, University of Los Angeles, Los Angeles, CA, USA
| | - Manu Kalyani
- Department of Developmental and Molecular Biology, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Nuria Martinez-Lopez
- Department of Medicine, Division of Digestive Diseases, University of Los Angeles, Los Angeles, CA, USA; Comprehensive Liver Research Center at UCLA, University of Los Angeles, Los Angeles, CA, USA
| | - Mridul Sharma
- Department of Medicine, Division of Digestive Diseases, University of Los Angeles, Los Angeles, CA, USA
| | | | | | | | | | - Elodie Picarda
- Department of Microbiology and Immunology, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Xingxing Zang
- Department of Microbiology and Immunology, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Jinghang Zhang
- Department of Microbiology and Immunology, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Chandan Guha
- Radiation Oncology, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Gary Schwartz
- Department of Medicine, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Prashant Rajbhandari
- Department of Medicine, Diabetes, Obesity, and Metabolism Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Rajat Singh
- Department of Medicine, Division of Digestive Diseases, University of Los Angeles, Los Angeles, CA, USA; Department of Developmental and Molecular Biology, Albert Einstein College of Medicine, Bronx, NY, USA; Department of Medicine, Albert Einstein College of Medicine, Bronx, NY, USA; Comprehensive Liver Research Center at UCLA, University of Los Angeles, Los Angeles, CA, USA.
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65
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Tian M, Wei JS, Cheuk ATC, Milewski D, Zhang Z, Kim YY, Chou HC, Liu C, Badr S, Pope EG, Rahmy A, Wu JT, Kelly MC, Wen X, Khan J. CAR T-cells targeting FGFR4 and CD276 simultaneously show potent antitumor effect against childhood rhabdomyosarcoma. Nat Commun 2024; 15:6222. [PMID: 39043633 PMCID: PMC11266617 DOI: 10.1038/s41467-024-50251-x] [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: 10/24/2023] [Accepted: 07/02/2024] [Indexed: 07/25/2024] Open
Abstract
Chimeric antigen receptor (CAR) T-cells targeting Fibroblast Growth Factor Receptor 4 (FGFR4), a highly expressed surface tyrosine receptor in rhabdomyosarcoma (RMS), are already in the clinical phase of development, but tumour heterogeneity and suboptimal activation might hamper their potency. Here we report an optimization strategy of the co-stimulatory and targeting properties of a FGFR4 CAR. We replace the CD8 hinge and transmembrane domain and the 4-1BB co-stimulatory domain with those of CD28. The resulting CARs display enhanced anti-tumor activity in several RMS xenograft models except for an aggressive tumour cell line, RMS559. By searching for a direct target of the RMS core-regulatory transcription factor MYOD1, we identify another surface protein, CD276, as a potential target. Bicistronic CARs (BiCisCAR) targeting both FGFR4 and CD276, containing two distinct co-stimulatory domains, have superior prolonged persistent and invigorated anti-tumor activities compared to the optimized FGFR4-specific CAR and the other BiCisCAR with the same 4-1BB co-stimulatory domain. Our study thus lays down the proof-of-principle for a CAR T-cell therapy targeting both FGFR4 and CD276 in RMS.
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MESH Headings
- Receptor, Fibroblast Growth Factor, Type 4/metabolism
- Receptor, Fibroblast Growth Factor, Type 4/genetics
- Rhabdomyosarcoma/therapy
- Rhabdomyosarcoma/immunology
- Rhabdomyosarcoma/genetics
- Humans
- Animals
- Receptors, Chimeric Antigen/immunology
- Receptors, Chimeric Antigen/metabolism
- Cell Line, Tumor
- Xenograft Model Antitumor Assays
- Mice
- Immunotherapy, Adoptive/methods
- B7 Antigens/metabolism
- B7 Antigens/immunology
- B7 Antigens/genetics
- MyoD Protein/metabolism
- MyoD Protein/genetics
- T-Lymphocytes/immunology
- T-Lymphocytes/metabolism
- Child
- Female
- Mice, SCID
- Mice, Inbred NOD
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Affiliation(s)
- Meijie Tian
- Genetics Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Jun S Wei
- Genetics Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Adam Tai-Chi Cheuk
- Genetics Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - David Milewski
- Genetics Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Zhongmei Zhang
- Genetics Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Yong Yean Kim
- Genetics Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Hsien-Chao Chou
- Genetics Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Can Liu
- Multiscale Systems Biology Section, Laboratory of Immune System Biology, NIAID, NIH, Bethesda, MD, 20892, USA
| | - Sherif Badr
- Experimental Immunology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Eleanor G Pope
- Genetics Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Abdelrahman Rahmy
- Genetics Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Jerry T Wu
- Genetics Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Michael C Kelly
- Single Cell Analysis Facility, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Xinyu Wen
- Genetics Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Javed Khan
- Genetics Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA.
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Ke BJ, Abdurahiman S, Biscu F, Zanella G, Dragoni G, Santhosh S, De Simone V, Zouzaf A, van Baarle L, Stakenborg M, Bosáková V, Van Rymenant Y, Verhulst E, Verstockt S, Klein E, Bislenghi G, Wolthuis A, Frič J, Breynaert C, D’Hoore A, Van der Veken P, De Meester I, Lovisa S, Hawinkels LJ, Verstockt B, De Hertogh G, Vermeire S, Matteoli G. Intercellular interaction between FAP+ fibroblasts and CD150+ inflammatory monocytes mediates fibrostenosis in Crohn's disease. J Clin Invest 2024; 134:e173835. [PMID: 39042469 PMCID: PMC11324301 DOI: 10.1172/jci173835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Accepted: 06/14/2024] [Indexed: 07/25/2024] Open
Abstract
Crohn's disease (CD) is marked by recurring intestinal inflammation and tissue injury, often resulting in fibrostenosis and bowel obstruction, necessitating surgical intervention with high recurrence rates. To elucidate the mechanisms underlying fibrostenosis in CD, we analyzed the transcriptome of cells isolated from the transmural ileum of patients with CD, including a trio of lesions from each patient: non-affected, inflamed, and stenotic ileum samples, and compared them with samples from patients without CD. Our computational analysis revealed that profibrotic signals from a subset of monocyte-derived cells expressing CD150 induced a disease-specific fibroblast population, resulting in chronic inflammation and tissue fibrosis. The transcription factor TWIST1 was identified as a key modulator of fibroblast activation and extracellular matrix (ECM) deposition. Genetic and pharmacological inhibition of TWIST1 prevents fibroblast activation, reducing ECM production and collagen deposition. Our findings suggest that the myeloid-stromal axis may offer a promising therapeutic target to prevent fibrostenosis in CD.
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Affiliation(s)
- Bo-Jun Ke
- Translational Research Center for Gastrointestinal Disorders (TARGID), Department of Chronic Diseases and Metabolism, KU Leuven, Leuven, Belgium
| | - Saeed Abdurahiman
- Translational Research Center for Gastrointestinal Disorders (TARGID), Department of Chronic Diseases and Metabolism, KU Leuven, Leuven, Belgium
| | - Francesca Biscu
- Translational Research Center for Gastrointestinal Disorders (TARGID), Department of Chronic Diseases and Metabolism, KU Leuven, Leuven, Belgium
- Centre for Inflammation Research, University of Edinburgh, Edinburgh, United Kingdom
| | - Gaia Zanella
- Translational Research Center for Gastrointestinal Disorders (TARGID), Department of Chronic Diseases and Metabolism, KU Leuven, Leuven, Belgium
| | - Gabriele Dragoni
- Translational Research Center for Gastrointestinal Disorders (TARGID), Department of Chronic Diseases and Metabolism, KU Leuven, Leuven, Belgium
- Gastroenterology Research Unit, Department of Experimental and Clinical Biomedical Sciences, University of Florence, Florence, Italy
| | - Sneha Santhosh
- Translational Research Center for Gastrointestinal Disorders (TARGID), Department of Chronic Diseases and Metabolism, KU Leuven, Leuven, Belgium
| | - Veronica De Simone
- Translational Research Center for Gastrointestinal Disorders (TARGID), Department of Chronic Diseases and Metabolism, KU Leuven, Leuven, Belgium
| | - Anissa Zouzaf
- Translational Research Center for Gastrointestinal Disorders (TARGID), Department of Chronic Diseases and Metabolism, KU Leuven, Leuven, Belgium
| | - Lies van Baarle
- Translational Research Center for Gastrointestinal Disorders (TARGID), Department of Chronic Diseases and Metabolism, KU Leuven, Leuven, Belgium
| | - Michelle Stakenborg
- Translational Research Center for Gastrointestinal Disorders (TARGID), Department of Chronic Diseases and Metabolism, KU Leuven, Leuven, Belgium
| | - Veronika Bosáková
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
- International Clinical Research Center, St. Anne’s University Hospital Brno, Brno, Czech Republic
| | - Yentl Van Rymenant
- Department of Pharmaceutical Sciences, University of Antwerp, Antwerp, Belgium
| | - Emile Verhulst
- Department of Pharmaceutical Sciences, University of Antwerp, Antwerp, Belgium
| | - Sare Verstockt
- Translational Research Center for Gastrointestinal Disorders (TARGID), Department of Chronic Diseases and Metabolism, KU Leuven, Leuven, Belgium
| | - Elliott Klein
- Department of Immunology and Respiratory Research, Boehringer Ingelheim Pharmaceuticals Inc., Ridgefield, Connecticut, USA
| | - Gabriele Bislenghi
- Department of Abdominal Surgery, University Hospitals Leuven, Leuven, Belgium
| | - Albert Wolthuis
- Department of Abdominal Surgery, University Hospitals Leuven, Leuven, Belgium
| | - Jan Frič
- International Clinical Research Center, St. Anne’s University Hospital Brno, Brno, Czech Republic
- International Clinical Research Center, Faculty of Medicine, Masaryk University, Brno, Czech Republic
- Institute of Hematology and Blood Transfusion, Prague, Czech Republic
| | - Christine Breynaert
- Department of Microbiology, Immunology and Transplantation, KU Leuven, Leuven, Belgium
| | - Andre D’Hoore
- Department of Abdominal Surgery, University Hospitals Leuven, Leuven, Belgium
| | | | - Ingrid De Meester
- Department of Pharmaceutical Sciences, University of Antwerp, Antwerp, Belgium
| | - Sara Lovisa
- Department of Biomedical Sciences, Humanitas University, Milan, Italy
| | - Lukas J.A.C. Hawinkels
- Department of Gastroenterology-Hepatology, Leiden University Medical Center, Leiden, Netherlands
| | - Bram Verstockt
- Translational Research Center for Gastrointestinal Disorders (TARGID), Department of Chronic Diseases and Metabolism, KU Leuven, Leuven, Belgium
- Department of Gastroenterology and Hepatology, University Hospitals Leuven, Leuven, Belgium
| | - Gert De Hertogh
- Laboratory of Pathology, University Hospitals Leuven, Leuven, Belgium
- Laboratory of Translational Cell and Tissue Research, Department of Imaging and Pathology, KU Leuven, Leuven, Belgium
| | - Séverine Vermeire
- Translational Research Center for Gastrointestinal Disorders (TARGID), Department of Chronic Diseases and Metabolism, KU Leuven, Leuven, Belgium
- Department of Gastroenterology and Hepatology, University Hospitals Leuven, Leuven, Belgium
| | - Gianluca Matteoli
- Translational Research Center for Gastrointestinal Disorders (TARGID), Department of Chronic Diseases and Metabolism, KU Leuven, Leuven, Belgium
- Leuven Institute for Single Cell Omics (LISCO), KU Leuven, Leuven, Belgium
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Huang X, Du G, Yang Y, Su P, Chen S, Cai C, Huang T, Zeng Y, Tao Y, Tian D, Zhang N. Advancing bladder cancer management: development of a prognostic model and personalized therapy. Front Immunol 2024; 15:1430792. [PMID: 39104534 PMCID: PMC11298345 DOI: 10.3389/fimmu.2024.1430792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2024] [Accepted: 07/08/2024] [Indexed: 08/07/2024] Open
Abstract
Background Bladder cancer (BLCA) was recognized as a significant public health challenge due to its high incidence and mortality rates. The influence of molecular subtypes on treatment outcomes was well-acknowledged, necessitating further exploration of their characterization and application. This study was aimed at enhancing the understanding of BLCA by mapping its molecular heterogeneity and developing a robust prognostic model using single-cell and bulk RNA sequencing data. Additionally, immunological characteristics and personalized treatment strategies were investigated through the risk score. Methods Single-cell RNA sequencing (scRNA-seq) data from GSE135337 and bulk RNA-seq data from several sources, including GSE13507, GSE31684, GSE32894, GSE69795, and TCGA-BLCA, were utilized. Molecular subtypes, particularly the basal-squamous (Ba/Sq) subtype associated with poor prognosis, were identified. A prognostic model was constructed using LASSO and Cox regression analyses focused on genes linked with the Ba/Sq subtype. this model was validated across internal and external datasets to ensure predictive accuracy. High- and low-risk groups based on the risk score derived from TCGA-BLCA data were analyzed to examine their immune-related molecular profiles and treatment responses. Results Six molecular subtypes were identified, with the Ba/Sq subtype being consistently associated with poor prognosis. The prognostic model, based on basal-squamous subtype-related genes (BSSRGs), was shown to have strong predictive performance across diverse clinical settings with AUC values at 1, 3, and 5 years indicating robust predictability in training, testing, and entire datasets. Analysis of the different risk groups revealed distinct immune infiltration and microenvironments. Generally higher tumor mutation burden (TMB) scores and lower tumor immune dysfunction and exclusion (TIDE) scores were exhibited by the low-risk group, suggesting varied potentials for systemic drug response between the groups. Finally, significant differences in potential systemic drug response rates were also observed between risk groups. Conclusions The study introduced and validated a new prognostic model for BLCA based on BSSRGs, which was proven effective in prognosis prediction. The potential for personalized therapy, optimized by patient stratification and immune profiling, was highlighted by our risk score, aiming to improve treatment efficacy. This approach was promised to offer significant advancements in managing BLCA, tailoring treatments based on detailed molecular and immunological insights.
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Affiliation(s)
- Xiang Huang
- Department of Urology, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Guotu Du
- Department of Urology, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Ying Yang
- Department of Pathology, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Peng Su
- Department of Urology, Affiliated Hospital of Zunyi Medical University, Zunyi, China
- Department of Pathology, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Shicheng Chen
- Department of Urology, The Second Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Chongjiong Cai
- Department of Urology, Affiliated Hospital of Zunyi Medical University, Zunyi, China
- Department of Urology, Renhuai People’s Hospital, Zunyi, China
| | - Tianyu Huang
- Department of Nursing, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Yu Zeng
- Department of Urology, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Yonggang Tao
- Department of Urology, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Demei Tian
- Department of Urology, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Neng Zhang
- Department of Urology, Affiliated Hospital of Zunyi Medical University, Zunyi, China
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Ran R, Trapecar M, Brubaker DK. Systematic Analysis of Human Colorectal Cancer scRNA-seq Revealed Limited Pro-tumoral IL-17 Production Potential in Gamma Delta T Cells. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.07.18.604156. [PMID: 39071278 PMCID: PMC11275756 DOI: 10.1101/2024.07.18.604156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/30/2024]
Abstract
Gamma delta (γδ) T cells play a crucial role in anti-tumor immunity due to their cytotoxic properties. However, the role and extent of γδ T cells in production of pro-tumorigenic interleukin- 17 (IL-17) within the tumor microenvironment (TME) of colorectal cancer (CRC) remains controversial. In this study, we re-analyzed nine published human CRC whole-tissue single-cell RNA sequencing (scRNA-seq) datasets, identifying 18,483 γδ T cells out of 951,785 total cells, in the neoplastic or adjacent normal tissue of 165 human CRC patients. Our results confirm that tumor-infiltrating γδ T cells exhibit high cytotoxicity-related transcription in both tumor and adjacent normal tissues, but critically, none of the γδ T cell clusters showed IL-17 production potential. We also identified various γδ T cell subsets, including Teff, TRM, Tpex, and Tex, and noted an increased expression of cytotoxic molecules in tumor-infiltrating γδ T cells compared to their normal area counterparts. Our work demonstrates that γδ T cells in CRC primarily function as cytotoxic effector cells rather than IL-17 producers, mitigating the concerns about their potential pro-tumorigenic roles in CRC, highlighting the importance of accurately characterizing these cells for cancer immunotherapy research and the unneglectable cross-species discrepancy between the mouse and human immune system in the study of cancer immunology.
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Affiliation(s)
- Ran Ran
- Center for Global Health and Diseases, Department of Pathology, Case Western Reserve University, Cleveland, OH
| | - Martin Trapecar
- Department of Medicine, Johns Hopkins University School of Medicine, Institute for Fundamental Biomedical Research, Johns Hopkins All Children’s Hospital, St. Petersburg, FL, USA
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD, USA
| | - Douglas K. Brubaker
- Center for Global Health and Diseases, Department of Pathology, Case Western Reserve University, Cleveland, OH
- The Blood, Heart, Lung, and Immunology Research Center, Case Western Reserve University, University Hospitals of Cleveland, Cleveland, OH
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Wei TT, Blanc E, Peidli S, Bischoff P, Trinks A, Horst D, Sers C, Blüthgen N, Beule D, Morkel M, Obermayer B. High-confidence calling of normal epithelial cells allows identification of a novel stem-like cell state in the colorectal cancer microenvironment. Int J Cancer 2024. [PMID: 39031967 DOI: 10.1002/ijc.35079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Revised: 05/29/2024] [Accepted: 06/10/2024] [Indexed: 07/22/2024]
Abstract
Single-cell analyses can be confounded by assigning unrelated groups of cells to common developmental trajectories. For instance, cancer cells and admixed normal epithelial cells could adopt similar cell states thus complicating analyses of their developmental potential. Here, we develop and benchmark CCISM (for Cancer Cell Identification using Somatic Mutations) to exploit genomic single nucleotide variants for the disambiguation of cancer cells from genomically normal non-cancer cells in single-cell data. We find that our method and others based on gene expression or allelic imbalances identify overlapping sets of colorectal cancer versus normal colon epithelial cells, depending on molecular characteristics of individual cancers. Further, we define consensus cell identities of normal and cancer epithelial cells with higher transcriptome cluster homogeneity than those derived using existing tools. Using the consensus identities, we identify significant shifts of cell state distributions in genomically normal epithelial cells developing in the cancer microenvironment, with immature states increased at the expense of terminal differentiation throughout the colon, and a novel stem-like cell state arising in the left colon. Trajectory analyses show that the new cell state extends the pseudo-time range of normal colon stem-like cells in a cancer context. We identify cancer-associated fibroblasts as sources of WNT and BMP ligands potentially contributing to increased plasticity of stem cells in the cancer microenvironment. Our analyses advocate careful interpretation of cell heterogeneity and plasticity in the cancer context and the consideration of genomic information in addition to gene expression data when possible.
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Affiliation(s)
- Tzu-Ting Wei
- Core Unit Bioinformatics, Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Eric Blanc
- Core Unit Bioinformatics, Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Stefan Peidli
- Institute of Pathology, Charité - Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
- Institute of Biology, Humboldt University of Berlin, Berlin, Germany
| | - Philip Bischoff
- Institute of Pathology, Charité - Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
- BIH Biomedical Innovation Academy, BIH Charité Clinician Scientist Program, Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Berlin, Germany
- German Cancer Consortium Partner Site Berlin, German Cancer Research Center, Heidelberg, Germany
| | - Alexandra Trinks
- Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Core Unit Bioportal Single Cells, Berlin, Germany
| | - David Horst
- Institute of Pathology, Charité - Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
- German Cancer Consortium Partner Site Berlin, German Cancer Research Center, Heidelberg, Germany
| | - Christine Sers
- Institute of Pathology, Charité - Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
- German Cancer Consortium Partner Site Berlin, German Cancer Research Center, Heidelberg, Germany
| | - Nils Blüthgen
- Institute of Pathology, Charité - Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
- Institute of Biology, Humboldt University of Berlin, Berlin, Germany
- German Cancer Consortium Partner Site Berlin, German Cancer Research Center, Heidelberg, Germany
| | - Dieter Beule
- Core Unit Bioinformatics, Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Markus Morkel
- Institute of Pathology, Charité - Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
- Institute of Biology, Humboldt University of Berlin, Berlin, Germany
- Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Core Unit Bioportal Single Cells, Berlin, Germany
| | - Benedikt Obermayer
- Core Unit Bioinformatics, Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Berlin, Germany
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70
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Moos PJ, Cheminant JR, Cowman S, Noll J, Wang Q, Musci T, Venosa A. Spatial and phenotypic heterogeneity of resident and monocyte-derived macrophages during inflammatory exacerbations leading to pulmonary fibrosis. Front Immunol 2024; 15:1425466. [PMID: 39100672 PMCID: PMC11294112 DOI: 10.3389/fimmu.2024.1425466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2024] [Accepted: 06/28/2024] [Indexed: 08/06/2024] Open
Abstract
Introduction Genetic mutations in critical nodes of pulmonary epithelial function are linked to the pathogenesis of pulmonary fibrosis (PF) and other interstitial lung diseases. The slow progression of these pathologies is often intermitted and accelerated by acute exacerbations, complex non-resolving cycles of inflammation and parenchymal damage, resulting in lung function decline and death. Excess monocyte mobilization during the initial phase of an acute exacerbation, and their long-term persistence in the lung, is linked to poor disease outcome. Methods The present work leverages a clinical idiopathic PF dataset and a murine model of acute inflammatory exacerbations triggered by mutation in the alveolar type-2 cell-restricted Surfactant Protein-C [SP-C] gene to spatially and phenotypically define monocyte/macrophage changes in the fibrosing lung. Results SP-C mutation triggered heterogeneous CD68+ macrophage activation, with highly active peri-injured cells relative to those sampled from fully remodeled and healthy regions. Ingenuity pathway analysis of sorted CD11b-SigF+CD11c+ alveolar macrophages defined asynchronous activation of extracellular matrix re-organization, cellular mobilization, and Apolipoprotein E (Apoe) signaling in the fibrosing lung. Cell-cell communication analysis of single cell sequencing datasets predicted pro-fibrogenic signaling (fibronectin/Fn1, osteopontin/Spp1, and Tgfb1) emanating from Trem2/TREM2 + interstitial macrophages. These cells also produced a distinct lipid signature from alveolar macrophages and monocytes, characterized by Apoe expression. Mono- and di-allelic genetic deletion of ApoE in SP-C mutant mice had limited impact on inflammation and mortality up to 42 day after injury. Discussion Together, these results provide a detailed spatio-temporal picture of resident, interstitial, and monocyte-derived macrophages during SP-C induced inflammatory exacerbations and end-stage clinical PF, and propose ApoE as a biomarker to identify activated macrophages involved in tissue remodeling.
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Affiliation(s)
| | | | | | | | | | | | - Alessandro Venosa
- Department of Pharmacology and Toxicology, University of Utah College of Pharmacy, Salt Lake City, UT, United States
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71
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Kabeer F, Tran H, Andronescu M, Singh G, Lee H, Salehi S, Wang B, Biele J, Brimhall J, Gee D, Cerda V, O'Flanagan C, Algara T, Kono T, Beatty S, Zaikova E, Lai D, Lee E, Moore R, Mungall AJ, Williams MJ, Roth A, Campbell KR, Shah SP, Aparicio S. Single-cell decoding of drug induced transcriptomic reprogramming in triple negative breast cancers. Genome Biol 2024; 25:191. [PMID: 39026273 PMCID: PMC11256464 DOI: 10.1186/s13059-024-03318-3] [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: 09/18/2023] [Accepted: 06/20/2024] [Indexed: 07/20/2024] Open
Abstract
BACKGROUND The encoding of cell intrinsic drug resistance states in breast cancer reflects the contributions of genomic and non-genomic variations and requires accurate estimation of clonal fitness from co-measurement of transcriptomic and genomic data. Somatic copy number (CN) variation is the dominant mutational mechanism leading to transcriptional variation and notably contributes to platinum chemotherapy resistance cell states. Here, we deploy time series measurements of triple negative breast cancer (TNBC) single-cell transcriptomes, along with co-measured single-cell CN fitness, identifying genomic and transcriptomic mechanisms in drug-associated transcriptional cell states. RESULTS We present scRNA-seq data (53,641 filtered cells) from serial passaging TNBC patient-derived xenograft (PDX) experiments spanning 2.5 years, matched with genomic single-cell CN data from the same samples. Our findings reveal distinct clonal responses within TNBC tumors exposed to platinum. Clones with high drug fitness undergo clonal sweeps and show subtle transcriptional reversion, while those with weak fitness exhibit dynamic transcription upon drug withdrawal. Pathway analysis highlights convergence on epithelial-mesenchymal transition and cytokine signaling, associated with resistance. Furthermore, pseudotime analysis demonstrates hysteresis in transcriptional reversion, indicating generation of new intermediate transcriptional states upon platinum exposure. CONCLUSIONS Within a polyclonal tumor, clones with strong genotype-associated fitness under platinum remained fixed, minimizing transcriptional reversion upon drug withdrawal. Conversely, clones with weaker fitness display non-genomic transcriptional plasticity. This suggests CN-associated and CN-independent transcriptional states could both contribute to platinum resistance. The dominance of genomic or non-genomic mechanisms within polyclonal tumors has implications for drug sensitivity, restoration, and re-treatment strategies.
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Affiliation(s)
- Farhia Kabeer
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada
- Department of Molecular Oncology, British Columbia Cancer Research Centre, Vancouver, BC, Canada
| | - Hoa Tran
- Department of Molecular Oncology, British Columbia Cancer Research Centre, Vancouver, BC, Canada
| | - Mirela Andronescu
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada
- Department of Molecular Oncology, British Columbia Cancer Research Centre, Vancouver, BC, Canada
| | - Gurdeep Singh
- Department of Molecular Oncology, British Columbia Cancer Research Centre, Vancouver, BC, Canada
| | - Hakwoo Lee
- Department of Molecular Oncology, British Columbia Cancer Research Centre, Vancouver, BC, Canada
| | - Sohrab Salehi
- Computational Oncology, Department of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Irving Institute for Cancer Dynamics, Columbia University, New York, NY, USA
| | - Beixi Wang
- Department of Molecular Oncology, British Columbia Cancer Research Centre, Vancouver, BC, Canada
| | - Justina Biele
- Department of Molecular Oncology, British Columbia Cancer Research Centre, Vancouver, BC, Canada
| | - Jazmine Brimhall
- Department of Molecular Oncology, British Columbia Cancer Research Centre, Vancouver, BC, Canada
| | - David Gee
- Department of Molecular Oncology, British Columbia Cancer Research Centre, Vancouver, BC, Canada
| | - Viviana Cerda
- Department of Molecular Oncology, British Columbia Cancer Research Centre, Vancouver, BC, Canada
| | - Ciara O'Flanagan
- Department of Molecular Oncology, British Columbia Cancer Research Centre, Vancouver, BC, Canada
| | - Teresa Algara
- Department of Molecular Oncology, British Columbia Cancer Research Centre, Vancouver, BC, Canada
| | - Takako Kono
- Department of Molecular Oncology, British Columbia Cancer Research Centre, Vancouver, BC, Canada
| | - Sean Beatty
- Department of Molecular Oncology, British Columbia Cancer Research Centre, Vancouver, BC, Canada
| | - Elena Zaikova
- Department of Molecular Oncology, British Columbia Cancer Research Centre, Vancouver, BC, Canada
| | - Daniel Lai
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada
- Department of Molecular Oncology, British Columbia Cancer Research Centre, Vancouver, BC, Canada
| | - Eric Lee
- Department of Molecular Oncology, British Columbia Cancer Research Centre, Vancouver, BC, Canada
| | - Richard Moore
- Canada's Michael Smith Genome Sciences Centre, BC Cancer, Vancouver, BC, Canada
| | - Andrew J Mungall
- Canada's Michael Smith Genome Sciences Centre, BC Cancer, Vancouver, BC, Canada
| | - Marc J Williams
- Computational Oncology, Department of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Andrew Roth
- Department of Molecular Oncology, British Columbia Cancer Research Centre, Vancouver, BC, Canada
| | - Kieran R Campbell
- Lunenfeld-Tanenbaum Research Institute, University of Toronto, Toronto, ON, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, ON, Canada
| | - Sohrab P Shah
- Computational Oncology, Department of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Irving Institute for Cancer Dynamics, Columbia University, New York, NY, USA
| | - Samuel Aparicio
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada.
- Department of Molecular Oncology, British Columbia Cancer Research Centre, Vancouver, BC, Canada.
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Paley MA, Yang X, Hassman LM, Penkava F, Garner LI, Paley GL, Linskey N, Agnew R, Arantes de Faria PH, Feng A, Li SY, Simone D, Roberson EDO, Ruzycki PA, Esaulova E, Laurent J, Feigl-Lenzen L, Springer LE, Liu C, Gillespie GM, Bowness P, Garcia KC, Yokoyama WM. Mucosal signatures of pathogenic T cells in HLA-B*27+ anterior uveitis and axial spondyloarthritis. JCI Insight 2024; 9:e174776. [PMID: 39024572 DOI: 10.1172/jci.insight.174776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Accepted: 07/12/2024] [Indexed: 07/20/2024] Open
Abstract
HLA-B*27 was one of the first HLA alleles associated with an autoimmune disease, i.e., axial spondyloarthritis (axSpA) and acute anterior uveitis (B27AAU), which cause joint and eye inflammation, respectively. Gastrointestinal inflammation has been suggested as a trigger of axSpA. We recently identified a bacterial peptide (YeiH) that can be presented by HLA-B*27 to expanded public T cell receptors in the joint in axSpA and the eye in B27AAU. While YeiH is present in enteric microbiota and pathogens, additional evidence that pathogenic T cells in HLA-B*27-associated autoimmunity may have had a prior antigenic encounter within the gastrointestinal tract remains lacking. Here, we analyzed ocular, synovial, and blood T cells in B27AAU and axSpA, showing that YeiH-specific CD8+ T cells express a mucosal gene set and surface proteins consistent with intestinal differentiation, including CD161, integrin α4β7, and CCR6. In addition, we found an expansion of YeiH-specific CD8+ T cells in axSpA and B27AAU blood compared with that from individuals acting as healthy controls, whereas influenza-specific CD8+ T cells were equivalent across groups. Finally, we demonstrated the dispensability of TRBV9 for antigen recognition. Collectively, our data suggest that, in HLA-B27-associated autoimmunity, early antigen exposure and differentiation of pathogenic CD8+ T cells may occur in enteric organs.
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Affiliation(s)
- Michael A Paley
- Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Xinbo Yang
- Departments of Molecular and Cellular Physiology and Structural Biology, Stanford University School of Medicine, Stanford, California, USA
| | - Lynn M Hassman
- Department of Ophthalmology and Visual Sciences, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Frank Penkava
- Nuffield Department of Orthopaedics Rheumatology and Musculoskeletal Science, Botnar Research Center
| | - Lee I Garner
- NDM Research Building, Nuffield Department of Medicine, and
- Centre for Immuno-oncology, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom
| | - Grace L Paley
- Department of Ophthalmology and Visual Sciences, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Nicole Linskey
- Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Ryan Agnew
- Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, USA
| | | | - Annie Feng
- Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Sophia Y Li
- Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Davide Simone
- Nuffield Department of Orthopaedics Rheumatology and Musculoskeletal Science, Botnar Research Center
| | - Elisha DO Roberson
- Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, USA
- Department of Genetics and
| | - Philip A Ruzycki
- Department of Ophthalmology and Visual Sciences, Washington University School of Medicine, St. Louis, Missouri, USA
- Department of Genetics and
| | - Ekaterina Esaulova
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Jennifer Laurent
- Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Lacey Feigl-Lenzen
- Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Luke E Springer
- Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Chang Liu
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Geraldine M Gillespie
- NDM Research Building, Nuffield Department of Medicine, and
- Centre for Immuno-oncology, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom
| | - Paul Bowness
- Nuffield Department of Orthopaedics Rheumatology and Musculoskeletal Science, Botnar Research Center
| | - K Christopher Garcia
- Departments of Molecular and Cellular Physiology and Structural Biology, Stanford University School of Medicine, Stanford, California, USA
- Howard Hughes Medical Institute, Stanford University School of Medicine, Stanford, California, USA
| | - Wayne M Yokoyama
- Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, USA
- Bursky Center for Human Immunology and Immunotherapy Programs, Washington University School of Medicine, St. Louis, Missouri, USA
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73
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Mao X, Shi M, Zhang B, Fu R, Cai M, Yu S, Lin K, Zhang C, Li D, Chen G, Luo W. Integration of single-cell and bulk RNA sequencing revealed immune heterogeneity and its association with disease activity in rheumatoid arthritis patients. Immunol Res 2024:10.1007/s12026-024-09513-5. [PMID: 39009881 DOI: 10.1007/s12026-024-09513-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2024] [Accepted: 06/27/2024] [Indexed: 07/17/2024]
Abstract
Rheumatoid arthritis (RA) is a chronic, inflammatory, systemic autoimmune disease characterized by cartilage, bone damage, synovial inflammation, hyperplasia, autoantibody production, and systemic features. To obtain an overall profile of the immune environment in RA patients and its association with clinical features, we performed single-cell transcriptome and T-cell receptor sequencing of mononuclear cells from peripheral blood (PBMC) and synovial fluid (SF) from RA patients, integrated with two large cohorts with bulk RNA sequencing for further validation and investigation. Dendritic cells (DCs) exhibited relatively high functional heterogeneity and tissue specificity in relation to both antigen presentation and proinflammatory functions. Peripheral helper T cells (TPHs) are likely to originate from synovial tissue, undergo activation and exhaustion, and are subsequently released into the peripheral blood. Notably, among all immune cell types, TPHs were found to have the most intense associations with disease activity. In addition, CD8 effector T cells could be clustered into two groups with different cytokine expressions and play distinct roles in RA development. By integrating single-cell data with bulk sequencing from two large cohorts, we identified interactions among TPHs, CD8 cells, CD16 monocytes, and DCs that strongly contribute to the proinflammatory local environment in RA joints. Of note, the swollen 28-joint counts exhibited a more pronounced association with this immune environment compared to other disease activity indexes. The immune environment alternated significantly from PBMCs to SF, which indicated that a series of immune cells was involved in proinflammatory responses in the local joints of RA patients. By integrating single-cell data with two large cohorts, we have uncovered associations between specific immune cell populations and clinical features. This integration provides a rapid and precise methodology for assessing local immune activation, offering valuable insights into the pathophysiological mechanisms at play in RA.
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Affiliation(s)
- Xiaofan Mao
- Institute of Translational Medicine, The First People's Hospital of Foshan, Foshan, China
| | - Maohua Shi
- Department of Rheumatology, The First People's Hospital of Foshan, Foshan, China
| | - Beiying Zhang
- Institute of Translational Medicine, The First People's Hospital of Foshan, Foshan, China
| | - Rongdang Fu
- Department of Hepatology, The First People's Hospital of Foshan, Foshan, China
| | - Mengyun Cai
- Institute of Translational Medicine, The First People's Hospital of Foshan, Foshan, China
| | - Sifei Yu
- Institute of Translational Medicine, The First People's Hospital of Foshan, Foshan, China
| | - Kairong Lin
- Institute of Translational Medicine, The First People's Hospital of Foshan, Foshan, China
| | - Chuling Zhang
- Institute of Translational Medicine, The First People's Hospital of Foshan, Foshan, China
| | - Dingru Li
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou, China
| | - Guoqiang Chen
- Department of Rheumatology, The First People's Hospital of Foshan, Foshan, China.
| | - Wei Luo
- Institute of Translational Medicine, The First People's Hospital of Foshan, Foshan, China.
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74
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Sushentsev N, Hamm G, Flint L, Birtles D, Zakirov A, Richings J, Ling S, Tan JY, McLean MA, Ayyappan V, Horvat Menih I, Brodie C, Miller JL, Mills IG, Gnanapragasam VJ, Warren AY, Barry ST, Goodwin RJA, Barrett T, Gallagher FA. Metabolic imaging across scales reveals distinct prostate cancer phenotypes. Nat Commun 2024; 15:5980. [PMID: 39013948 PMCID: PMC11252279 DOI: 10.1038/s41467-024-50362-5] [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: 10/03/2023] [Accepted: 07/07/2024] [Indexed: 07/18/2024] Open
Abstract
Hyperpolarised magnetic resonance imaging (HP-13C-MRI) has shown promise as a clinical tool for detecting and characterising prostate cancer. Here we use a range of spatially resolved histological techniques to identify the biological mechanisms underpinning differential [1-13C]lactate labelling between benign and malignant prostate, as well as in tumours containing cribriform and non-cribriform Gleason pattern 4 disease. Here we show that elevated hyperpolarised [1-13C]lactate signal in prostate cancer compared to the benign prostate is primarily driven by increased tumour epithelial cell density and vascularity, rather than differences in epithelial lactate concentration between tumour and normal. We also demonstrate that some tumours of the cribriform subtype may lack [1-13C]lactate labelling, which is explained by lower epithelial lactate dehydrogenase expression, higher mitochondrial pyruvate carrier density, and increased lipid abundance compared to lactate-rich non-cribriform lesions. These findings highlight the potential of combining spatial metabolic imaging tools across scales to identify clinically significant metabolic phenotypes in prostate cancer.
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Affiliation(s)
- Nikita Sushentsev
- Department of Radiology, University of Cambridge and Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK.
| | - Gregory Hamm
- Integrated BioAnalysis, Clinical Pharmacology & Safety Sciences, R&D, AstraZeneca, Cambridge, UK
| | - Lucy Flint
- Integrated BioAnalysis, Clinical Pharmacology & Safety Sciences, R&D, AstraZeneca, Cambridge, UK
| | - Daniel Birtles
- Integrated BioAnalysis, Clinical Pharmacology & Safety Sciences, R&D, AstraZeneca, Cambridge, UK
| | - Aleksandr Zakirov
- Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK
| | - Jack Richings
- Predictive AI & Data, Clinical Pharmacology & Safety Sciences, R&D, AstraZeneca, Cambridge, UK
| | - Stephanie Ling
- Integrated BioAnalysis, Clinical Pharmacology & Safety Sciences, R&D, AstraZeneca, Cambridge, UK
| | - Jennifer Y Tan
- Predictive AI & Data, Clinical Pharmacology & Safety Sciences, R&D, AstraZeneca, Cambridge, UK
| | - Mary A McLean
- Department of Radiology, University of Cambridge and Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
- Cancer Research UK Cambridge Institute, University of Cambridge, Cambridge, UK
| | - Vinay Ayyappan
- Department of Radiology, University of Cambridge and Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Ines Horvat Menih
- Department of Radiology, University of Cambridge and Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Cara Brodie
- Cancer Research UK Cambridge Institute, University of Cambridge, Cambridge, UK
| | - Jodi L Miller
- Cancer Research UK Cambridge Institute, University of Cambridge, Cambridge, UK
| | - Ian G Mills
- Patrick G Johnston Centre for Cancer Research, Queen's University Belfast, Belfast, UK
- Nuffield Department of Surgical Sciences, University of Oxford, John Radcliffe Hospital, Oxford, UK
| | - Vincent J Gnanapragasam
- Department of Urology, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
- Division of Urology, Department of Surgery, University of Cambridge, Cambridge, UK
- Cambridge Urology Translational Research and Clinical Trials Office, Cambridge Biomedical Campus, Addenbrooke's Hospital, Cambridge, UK
| | - Anne Y Warren
- Department of Pathology, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Simon T Barry
- Bioscience, Early Oncology, AstraZeneca, Cambridge, UK
| | - Richard J A Goodwin
- Integrated BioAnalysis, Clinical Pharmacology & Safety Sciences, R&D, AstraZeneca, Cambridge, UK
| | - Tristan Barrett
- Department of Radiology, University of Cambridge and Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Ferdia A Gallagher
- Department of Radiology, University of Cambridge and Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
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75
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Wang Z, Li Z, Luan T, Cui G, Shu S, Liang Y, Zhang K, Xiao J, Yu W, Cui J, Li A, Peng G, Fang Y. A spatiotemporal molecular atlas of mouse spinal cord injury identifies a distinct astrocyte subpopulation and therapeutic potential of IGFBP2. Dev Cell 2024:S1534-5807(24)00394-0. [PMID: 39029468 DOI: 10.1016/j.devcel.2024.06.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 03/26/2024] [Accepted: 06/20/2024] [Indexed: 07/21/2024]
Abstract
Spinal cord injury (SCI) triggers a cascade of intricate molecular and cellular changes that determine the outcome. In this study, we resolve the spatiotemporal organization of the injured mouse spinal cord and quantitatively assess in situ cell-cell communication following SCI. By analyzing existing single-cell RNA sequencing datasets alongside our spatial data, we delineate a subpopulation of Igfbp2-expressing astrocytes that migrate from the white matter (WM) to gray matter (GM) and become reactive upon SCI, termed Astro-GMii. Further, Igfbp2 upregulation promotes astrocyte migration, proliferation, and reactivity, and the secreted IGFBP2 protein fosters neurite outgrowth. Finally, we show that IGFBP2 significantly reduces neuronal loss and remarkably improves the functional recovery in a mouse model of SCI in vivo. Together, this study not only provides a comprehensive molecular atlas of SCI but also exemplifies how this rich resource can be applied to endow cells and genes with functional insight and therapeutic potential.
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Affiliation(s)
- Zeqing Wang
- Interdisciplinary Research Center on Biology and Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 201210, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhuxia Li
- Center for Cell Lineage and Development, CAS Key Laboratory of Regenerative Biology, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, GIBH-CUHK Joint Research Laboratory on Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Tianle Luan
- Interdisciplinary Research Center on Biology and Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 201210, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Guizhong Cui
- Guangzhou National Laboratory, Guangzhou 510005, China
| | - Shunpan Shu
- Interdisciplinary Research Center on Biology and Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 201210, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yiyao Liang
- Key Laboratory of CNS Regeneration (Ministry of Education), Guangdong Key Laboratory of Non-human Primate Research, GHM Institute of CNS Regeneration, Jinan University, Guangzhou 510632, China
| | - Kai Zhang
- Interdisciplinary Research Center on Biology and Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 201210, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jingshu Xiao
- Guangzhou National Laboratory, Guangzhou 510005, China
| | - Wei Yu
- Key Laboratory of CNS Regeneration (Ministry of Education), Guangdong Key Laboratory of Non-human Primate Research, GHM Institute of CNS Regeneration, Jinan University, Guangzhou 510632, China
| | - Jihong Cui
- Interdisciplinary Research Center on Biology and Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 201210, China
| | - Ang Li
- Key Laboratory of CNS Regeneration (Ministry of Education), Guangdong Key Laboratory of Non-human Primate Research, GHM Institute of CNS Regeneration, Jinan University, Guangzhou 510632, China.
| | - Guangdun Peng
- Center for Cell Lineage and Development, CAS Key Laboratory of Regenerative Biology, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, GIBH-CUHK Joint Research Laboratory on Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Yanshan Fang
- Interdisciplinary Research Center on Biology and Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 201210, China; University of Chinese Academy of Sciences, Beijing 100049, China.
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76
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Armstrong D, Chang CY, Hong MJ, Green L, Hudson W, Shen Y, Song LZ, Jammi S, Casal B, Creighton CJ, Carisey A, Zhang XHF, McKenna NJ, Kang SW, Lee HS, Corry DB, Kheradmand F. MAGE-A4-Responsive Plasma Cells Promote Non-Small Cell Lung Cancer. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.07.10.602985. [PMID: 39071307 PMCID: PMC11275715 DOI: 10.1101/2024.07.10.602985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/30/2024]
Abstract
Adaptive immunity is critical to eliminate malignant cells, while multiple tumor-intrinsic factors can alter this protective function. Melanoma antigen-A4 (MAGE-A4), a cancer-testis antigen, is expressed in several solid tumors and correlates with poor survival in non-small cell lung cancer (NSCLC), but its role in altering antitumor immunity remains unclear. We found that expression of MAGE-A4 was highly associated with the loss of PTEN , a tumor suppressor, in human NSCLC. Here we show that constitutive expression of human MAGE-A4 combined with the loss of Pten in mouse airway epithelial cells results in metastatic adenocarcinoma enriched in CD138 + CXCR4 + plasma cells, predominantly expressing IgA. Consistently, human NSCLC expressing MAGE-A4 showed increased CD138 + IgA + plasma cell density surrounding tumors. The abrogation of MAGE-A4-responsive plasma cells (MARPs) decreased tumor burden, increased T cell infiltration and activation, and reduced CD163 + CD206 + macrophages in mouse lungs. These findings suggest MAGE-A4 promotes NSCLC tumorigenesis, in part, through the recruitment and retention of IgA + MARPs in the lungs.
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77
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Pérez RF, Tezanos P, Peñarroya A, González-Ramón A, Urdinguio RG, Gancedo-Verdejo J, Tejedor JR, Santamarina-Ojeda P, Alba-Linares JJ, Sainz-Ledo L, Roberti A, López V, Mangas C, Moro M, Cintado Reyes E, Muela Martínez P, Rodríguez-Santamaría M, Ortea I, Iglesias-Rey R, Castilla-Silgado J, Tomás-Zapico C, Iglesias-Gutiérrez E, Fernández-García B, Sanchez-Mut JV, Trejo JL, Fernández AF, Fraga MF. A multiomic atlas of the aging hippocampus reveals molecular changes in response to environmental enrichment. Nat Commun 2024; 15:5829. [PMID: 39013876 PMCID: PMC11252340 DOI: 10.1038/s41467-024-49608-z] [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: 09/12/2023] [Accepted: 06/10/2024] [Indexed: 07/18/2024] Open
Abstract
Aging involves the deterioration of organismal function, leading to the emergence of multiple pathologies. Environmental stimuli, including lifestyle, can influence the trajectory of this process and may be used as tools in the pursuit of healthy aging. To evaluate the role of epigenetic mechanisms in this context, we have generated bulk tissue and single cell multi-omic maps of the male mouse dorsal hippocampus in young and old animals exposed to environmental stimulation in the form of enriched environments. We present a molecular atlas of the aging process, highlighting two distinct axes, related to inflammation and to the dysregulation of mRNA metabolism, at the functional RNA and protein level. Additionally, we report the alteration of heterochromatin domains, including the loss of bivalent chromatin and the uncovering of a heterochromatin-switch phenomenon whereby constitutive heterochromatin loss is partially mitigated through gains in facultative heterochromatin. Notably, we observed the multi-omic reversal of a great number of aging-associated alterations in the context of environmental enrichment, which was particularly linked to glial and oligodendrocyte pathways. In conclusion, our work describes the epigenomic landscape of environmental stimulation in the context of aging and reveals how lifestyle intervention can lead to the multi-layered reversal of aging-associated decline.
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Affiliation(s)
- Raúl F Pérez
- Cancer Epigenetics and Nanomedicine Laboratory, Centro de Investigación en Nanomateriales y Nanotecnología-Consejo Superior de Investigaciones Científicas (CINN-CSIC), Universidad de Oviedo, 33011, Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA-FINBA), Universidad de Oviedo, 33011, Oviedo, Spain
- Instituto Universitario de Oncología del Principado de Asturias (IUOPA), Universidad de Oviedo, 33003, Oviedo, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Instituto de Salud Carlos III (ISCIII), 28029, Madrid, Spain
| | - Patricia Tezanos
- Departamento de Neurociencia Translacional, Instituto Cajal-Consejo Superior de Investigaciones Científicas (IC-CSIC), 28002, Madrid, Spain
- Programa de Doctorado en Neurociencia, Universidad Autónoma de Madrid-Instituto Cajal, 28002, Madrid, Spain
| | - Alfonso Peñarroya
- Cancer Epigenetics and Nanomedicine Laboratory, Centro de Investigación en Nanomateriales y Nanotecnología-Consejo Superior de Investigaciones Científicas (CINN-CSIC), Universidad de Oviedo, 33011, Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA-FINBA), Universidad de Oviedo, 33011, Oviedo, Spain
- Instituto Universitario de Oncología del Principado de Asturias (IUOPA), Universidad de Oviedo, 33003, Oviedo, Spain
| | - Alejandro González-Ramón
- Laboratory of Functional Epi-Genomics of Aging and Alzheimer's disease, Instituto de Neurociencias, Universidad Miguel Hernández-Consejo Superior de Investigaciones Científicas (UMH-CSIC), 03550, Alicante, Spain
| | - Rocío G Urdinguio
- Cancer Epigenetics and Nanomedicine Laboratory, Centro de Investigación en Nanomateriales y Nanotecnología-Consejo Superior de Investigaciones Científicas (CINN-CSIC), Universidad de Oviedo, 33011, Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA-FINBA), Universidad de Oviedo, 33011, Oviedo, Spain
- Instituto Universitario de Oncología del Principado de Asturias (IUOPA), Universidad de Oviedo, 33003, Oviedo, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Instituto de Salud Carlos III (ISCIII), 28029, Madrid, Spain
| | - Javier Gancedo-Verdejo
- Cancer Epigenetics and Nanomedicine Laboratory, Centro de Investigación en Nanomateriales y Nanotecnología-Consejo Superior de Investigaciones Científicas (CINN-CSIC), Universidad de Oviedo, 33011, Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA-FINBA), Universidad de Oviedo, 33011, Oviedo, Spain
- Instituto Universitario de Oncología del Principado de Asturias (IUOPA), Universidad de Oviedo, 33003, Oviedo, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Instituto de Salud Carlos III (ISCIII), 28029, Madrid, Spain
| | - Juan Ramón Tejedor
- Cancer Epigenetics and Nanomedicine Laboratory, Centro de Investigación en Nanomateriales y Nanotecnología-Consejo Superior de Investigaciones Científicas (CINN-CSIC), Universidad de Oviedo, 33011, Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA-FINBA), Universidad de Oviedo, 33011, Oviedo, Spain
- Instituto Universitario de Oncología del Principado de Asturias (IUOPA), Universidad de Oviedo, 33003, Oviedo, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Instituto de Salud Carlos III (ISCIII), 28029, Madrid, Spain
| | - Pablo Santamarina-Ojeda
- Cancer Epigenetics and Nanomedicine Laboratory, Centro de Investigación en Nanomateriales y Nanotecnología-Consejo Superior de Investigaciones Científicas (CINN-CSIC), Universidad de Oviedo, 33011, Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA-FINBA), Universidad de Oviedo, 33011, Oviedo, Spain
- Instituto Universitario de Oncología del Principado de Asturias (IUOPA), Universidad de Oviedo, 33003, Oviedo, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Instituto de Salud Carlos III (ISCIII), 28029, Madrid, Spain
| | - Juan José Alba-Linares
- Cancer Epigenetics and Nanomedicine Laboratory, Centro de Investigación en Nanomateriales y Nanotecnología-Consejo Superior de Investigaciones Científicas (CINN-CSIC), Universidad de Oviedo, 33011, Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA-FINBA), Universidad de Oviedo, 33011, Oviedo, Spain
- Instituto Universitario de Oncología del Principado de Asturias (IUOPA), Universidad de Oviedo, 33003, Oviedo, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Instituto de Salud Carlos III (ISCIII), 28029, Madrid, Spain
| | - Lidia Sainz-Ledo
- Cancer Epigenetics and Nanomedicine Laboratory, Centro de Investigación en Nanomateriales y Nanotecnología-Consejo Superior de Investigaciones Científicas (CINN-CSIC), Universidad de Oviedo, 33011, Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA-FINBA), Universidad de Oviedo, 33011, Oviedo, Spain
- Instituto Universitario de Oncología del Principado de Asturias (IUOPA), Universidad de Oviedo, 33003, Oviedo, Spain
| | - Annalisa Roberti
- Cancer Epigenetics and Nanomedicine Laboratory, Centro de Investigación en Nanomateriales y Nanotecnología-Consejo Superior de Investigaciones Científicas (CINN-CSIC), Universidad de Oviedo, 33011, Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA-FINBA), Universidad de Oviedo, 33011, Oviedo, Spain
- Instituto Universitario de Oncología del Principado de Asturias (IUOPA), Universidad de Oviedo, 33003, Oviedo, Spain
| | - Virginia López
- Cancer Epigenetics and Nanomedicine Laboratory, Centro de Investigación en Nanomateriales y Nanotecnología-Consejo Superior de Investigaciones Científicas (CINN-CSIC), Universidad de Oviedo, 33011, Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA-FINBA), Universidad de Oviedo, 33011, Oviedo, Spain
- Instituto Universitario de Oncología del Principado de Asturias (IUOPA), Universidad de Oviedo, 33003, Oviedo, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Instituto de Salud Carlos III (ISCIII), 28029, Madrid, Spain
| | - Cristina Mangas
- Cancer Epigenetics and Nanomedicine Laboratory, Centro de Investigación en Nanomateriales y Nanotecnología-Consejo Superior de Investigaciones Científicas (CINN-CSIC), Universidad de Oviedo, 33011, Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA-FINBA), Universidad de Oviedo, 33011, Oviedo, Spain
- Instituto Universitario de Oncología del Principado de Asturias (IUOPA), Universidad de Oviedo, 33003, Oviedo, Spain
| | - María Moro
- Departamento de Neurociencia Translacional, Instituto Cajal-Consejo Superior de Investigaciones Científicas (IC-CSIC), 28002, Madrid, Spain
| | - Elisa Cintado Reyes
- Departamento de Neurociencia Translacional, Instituto Cajal-Consejo Superior de Investigaciones Científicas (IC-CSIC), 28002, Madrid, Spain
- Programa de Doctorado en Neurociencia, Universidad Autónoma de Madrid-Instituto Cajal, 28002, Madrid, Spain
| | - Pablo Muela Martínez
- Departamento de Neurociencia Translacional, Instituto Cajal-Consejo Superior de Investigaciones Científicas (IC-CSIC), 28002, Madrid, Spain
- Programa de Doctorado en Neurociencia, Universidad Autónoma de Madrid-Instituto Cajal, 28002, Madrid, Spain
| | - Mar Rodríguez-Santamaría
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA-FINBA), Universidad de Oviedo, 33011, Oviedo, Spain
- Instituto Universitario de Oncología del Principado de Asturias (IUOPA), Universidad de Oviedo, 33003, Oviedo, Spain
- Bioterio y unidad de imagen preclínica, Universidad de Oviedo, 33006, Oviedo, Spain
| | - Ignacio Ortea
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA-FINBA), Universidad de Oviedo, 33011, Oviedo, Spain
- Proteomics Unit, Centro de Investigación en Nanomateriales y Nanotecnología-Consejo Superior de Investigaciones Científicas (CINN-CSIC), Instituto de Investigación Sanitaria del Principado de Asturias (ISPA-FINBA), 33011, Oviedo, Spain
| | - Ramón Iglesias-Rey
- Neuroimaging and Biotechnology Laboratory (NOBEL), Clinical Neurosciences Research Laboratory (LINC), Health Research Institute of Santiago de Compostela (IDIS), 15706, Santiago de Compostela, Spain
| | - Juan Castilla-Silgado
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA-FINBA), Universidad de Oviedo, 33011, Oviedo, Spain
- Departamento de Biología Funcional, Área de Fisiología, Universidad de Oviedo, 33006, Oviedo, Spain
| | - Cristina Tomás-Zapico
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA-FINBA), Universidad de Oviedo, 33011, Oviedo, Spain
- Departamento de Biología Funcional, Área de Fisiología, Universidad de Oviedo, 33006, Oviedo, Spain
| | - Eduardo Iglesias-Gutiérrez
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA-FINBA), Universidad de Oviedo, 33011, Oviedo, Spain
- Departamento de Biología Funcional, Área de Fisiología, Universidad de Oviedo, 33006, Oviedo, Spain
| | - Benjamín Fernández-García
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA-FINBA), Universidad de Oviedo, 33011, Oviedo, Spain
- Departamento de Biología Funcional, Área de Fisiología, Universidad de Oviedo, 33006, Oviedo, Spain
| | - Jose Vicente Sanchez-Mut
- Laboratory of Functional Epi-Genomics of Aging and Alzheimer's disease, Instituto de Neurociencias, Universidad Miguel Hernández-Consejo Superior de Investigaciones Científicas (UMH-CSIC), 03550, Alicante, Spain
| | - José Luis Trejo
- Departamento de Neurociencia Translacional, Instituto Cajal-Consejo Superior de Investigaciones Científicas (IC-CSIC), 28002, Madrid, Spain
| | - Agustín F Fernández
- Cancer Epigenetics and Nanomedicine Laboratory, Centro de Investigación en Nanomateriales y Nanotecnología-Consejo Superior de Investigaciones Científicas (CINN-CSIC), Universidad de Oviedo, 33011, Oviedo, Spain.
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA-FINBA), Universidad de Oviedo, 33011, Oviedo, Spain.
- Instituto Universitario de Oncología del Principado de Asturias (IUOPA), Universidad de Oviedo, 33003, Oviedo, Spain.
- Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Instituto de Salud Carlos III (ISCIII), 28029, Madrid, Spain.
| | - Mario F Fraga
- Cancer Epigenetics and Nanomedicine Laboratory, Centro de Investigación en Nanomateriales y Nanotecnología-Consejo Superior de Investigaciones Científicas (CINN-CSIC), Universidad de Oviedo, 33011, Oviedo, Spain.
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA-FINBA), Universidad de Oviedo, 33011, Oviedo, Spain.
- Instituto Universitario de Oncología del Principado de Asturias (IUOPA), Universidad de Oviedo, 33003, Oviedo, Spain.
- Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Instituto de Salud Carlos III (ISCIII), 28029, Madrid, Spain.
- Departamento de Biología de Organismos y Sistemas, Área de Fisiología Vegetal, Universidad de Oviedo, 33006, Oviedo, Spain.
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Gigante ED, Piekarz KM, Gurgis A, Cohen L, Razy-Krajka F, Popsuj S, Johnson CJ, Ali HS, Mohana Sundaram S, Stolfi A. Specification and survival of post-metamorphic branchiomeric neurons in a non-vertebrate chordate. Development 2024; 151:dev202719. [PMID: 38895900 PMCID: PMC11273300 DOI: 10.1242/dev.202719] [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: 01/22/2024] [Accepted: 06/10/2024] [Indexed: 06/21/2024]
Abstract
Tunicates are the sister group to the vertebrates, yet most species have a life cycle split between swimming larva and sedentary adult phases. During metamorphosis, larval neurons are replaced by adult-specific ones. The regulatory mechanisms underlying this replacement remain largely unknown. Using tissue-specific CRISPR/Cas9-mediated mutagenesis in the tunicate Ciona, we show that orthologs of conserved hindbrain and branchiomeric neuron regulatory factors Pax2/5/8 and Phox2 are required to specify the 'neck', a cellular compartment set aside in the larva to give rise to cranial motor neuron-like neurons post-metamorphosis. Using bulk and single-cell RNA-sequencing analyses, we characterize the transcriptome of the neck downstream of Pax2/5/8. We present evidence that neck-derived adult ciliomotor neurons begin to differentiate in the larva and persist through metamorphosis, contrary to the assumption that the adult nervous system is formed after settlement and the death of larval neurons during metamorphosis. Finally, we show that FGF signaling during the larval phase alters the patterning of the neck and its derivatives. Suppression of FGF converts neck cells into larval neurons that fail to survive metamorphosis, whereas prolonged FGF signaling promotes an adult neural stem cell-like fate.
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Affiliation(s)
- Eduardo D. Gigante
- School of Biological Sciences, College of Sciences, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Katarzyna M. Piekarz
- School of Biological Sciences, College of Sciences, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Alexandra Gurgis
- School of Biological Sciences, College of Sciences, Georgia Institute of Technology, Atlanta, GA 30332, USA
- Department of Biology, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Leslie Cohen
- School of Biological Sciences, College of Sciences, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Florian Razy-Krajka
- School of Biological Sciences, College of Sciences, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Sydney Popsuj
- School of Biological Sciences, College of Sciences, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Christopher J. Johnson
- School of Biological Sciences, College of Sciences, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Hussan S. Ali
- School of Biological Sciences, College of Sciences, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Shruthi Mohana Sundaram
- School of Biological Sciences, College of Sciences, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Alberto Stolfi
- School of Biological Sciences, College of Sciences, Georgia Institute of Technology, Atlanta, GA 30332, USA
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79
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Xu K, Li J, Qin L, Liu J, Yang H, Dou G, Ma L, Dong Y, Wang Y. Decoding ecosystem heterogeneity and transcriptional regulation characteristics of multi-subtype renal cell carcinoma. Heliyon 2024; 10:e33196. [PMID: 39044973 PMCID: PMC11263639 DOI: 10.1016/j.heliyon.2024.e33196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 06/14/2024] [Accepted: 06/16/2024] [Indexed: 07/25/2024] Open
Abstract
Background Renal cell carcinoma (RCC) is characterized by its heterogeneity and the complexity of its tumor microenvironment. This study addresses the need to understand RCC at a cellular level, with a focus on its three main subtypes: clear cell (ccRCC), chromophobe (chRCC), and papillary renal cell carcinoma (pRCC). Objective This study aims to comprehensively characterize the cellular diversity and intercellular communication networks of RCC subtypes using scRNA-seq technology. By focusing on macrophages and cancer-associated fibroblasts (CAFs), we seek to reveal their functional states, developmental trajectories, and signaling pathways. Methodology We utilized single-cell RNA sequencing (scRNA-seq) data from various kidney cancer subtypes. Advanced analytical techniques, including Uniform Manifold Approximation and Projection (UMAP) and Reactome Gene Set Variation Analysis (ReactomeGSA), were employed to assess cellular heterogeneity and pathway activities. The developmental dynamics of macrophages were studied using CytoTRACE, and cell-to-cell communication was analyzed to identify subtype-specific interaction networks. Results Our comprehensive analysis revealed significant cellular diversity within RCC. Distinct macrophage and CAF subpopulations were identified, each exhibiting unique gene expression profiles and pathway activities. Notably, ccRCC showed prominent bidirectional communication between macrophages and CAFs, while chRCC and pRCC displayed disrupted signaling pathways. Metabolic pathway analysis reflected the adaptability of macrophages and CAFs to the tumor microenvironment, and the MIF signaling pathway was identified as a key mediator of cellular interactions. Conclusion The study highlights the cellular heterogeneity and the intricate communication networks within RCC subtypes, underscoring the complexity of the tumor microenvironment. Our findings suggest that targeting specific cellular interactions and pathways may offer new avenues for therapeutic intervention in RCC. The unique macrophage and CAF profiles across RCC subtypes provide valuable insights for the development of personalized and targeted treatment strategies.
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Affiliation(s)
- Kailong Xu
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan, China
| | - Jiang Li
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan, China
| | - LiWei Qin
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan, China
| | - Jie Liu
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan, China
| | - Heng Yang
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan, China
| | - Gang Dou
- College of Electrical Engineering and Automation, Shandong University of Science and Technology, Qingdao, China
| | - LiXin Ma
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan, China
| | - Yanming Dong
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan, China
| | - Yang Wang
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan, China
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80
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Russell D, Pisu D, Mattila J, Johnston L. CD38+ Alveolar macrophages mediate early control of M. tuberculosis proliferation in the lung. RESEARCH SQUARE 2024:rs.3.rs-3934768. [PMID: 39070650 PMCID: PMC11275981 DOI: 10.21203/rs.3.rs-3934768/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/30/2024]
Abstract
Tuberculosis, caused by M.tuberculosis (Mtb), remains an enduring global health challenge, especially given the limited efficacy of current therapeutic interventions. Much of existing research has focused on immune failure as a driver of tuberculosis. However, the crucial role of host macrophage biology in controlling the disease remains underappreciated. While we have gained deeper insights into how alveolar macrophages (AMs) interact with Mtb, the precise AM subsets that mediate protection and potentially prevent tuberculosis progression have yet to be identified. In this study, we employed multi-modal scRNA-seq analyses to evaluate the functional roles of diverse macrophage subpopulations across different infection timepoints, allowing us to delineate the dynamic landscape of controller and permissive AM populations during the course of infection. Our analyses at specific time-intervals post-Mtb challenge revealed macrophage populations transitioning between distinct anti- and pro-inflammatory states. Notably, early in Mtb infection, CD38- AMs showed a muted response. As infection progressed, we observed a phenotypic shift in AMs, with CD38+ monocyte-derived AMs (moAMs) and a subset of tissue-resident AMs (TR-AMs) emerging as significant controllers of bacterial growth. Furthermore, scATAC-seq analysis of naïve lungs demonstrated that CD38+ TR-AMs possessed a distinct chromatin signature prior to infection, indicative of epigenetic priming and predisposition to a pro-inflammatory response. BCG intranasal immunization increased the numbers of CD38+ macrophages, substantially enhancing their capability to restrict Mtb growth. Collectively, our findings emphasize the pivotal, dynamic roles of different macrophage subsets in TB infection and reveal rational pathways for the development of improved vaccines and immunotherapeutic strategies.
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81
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Amancherla K, Schlendorf KH, Chow N, Sheng Q, Freedman JE, Rathmell JC. Single-cell RNA-sequencing identifies unique cell-specific gene expression profiles in high-grade cardiac allograft vasculopathy. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.07.10.602989. [PMID: 39026730 PMCID: PMC11257508 DOI: 10.1101/2024.07.10.602989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/20/2024]
Abstract
Background Cardiac allograft vasculopathy (CAV), a diffuse thickening of the intima of the coronary arteries and microvasculature, is the leading cause of late graft failure and mortality after heart transplantation (HT). Diagnosis involves invasive coronary angiography, which carries substantial risk, and minimally-invasive approaches to CAV diagnosis are urgently needed. Using single-cell RNA-sequencing in peripheral blood mononuclear cells (PBMCs), we sought to identify cell-specific gene expression profiles in CAV. Methods Whole blood was collected from 22 HT recipients with angiographically-confirmed CAV and 18 HT recipients without CAV. PBMCs were isolated and subjected to single-cell RNA-sequencing using a 10X Genomics microfluidic platform. Downstream analyses focused on differential expression of genes, cell compositional changes, and T cell receptor repertoire analyses. Results Across 40 PBMC samples, we isolated 134,984 cells spanning 8 major clusters and 31 subclusters of cell types. Compositional analyses showed subtle, but significant increases in CD4+ T central memory cells, and CD14+ and CD16+ monocytes in high-grade CAV (CAV-2 and CAV-3) as compared to low-grade or absent CAV. After adjusting for age, gender, and prednisone use, 745 genes were differentially expressed in a cell-specific manner in high-grade CAV. Weighted gene co-expression network analyses showed enrichment for putative pathways involved in inflammation and angiogenesis. There were no significant differences in T cell clonality or diversity with increasing CAV severity. Conclusions Unbiased whole transcriptomic analyses at single-cell resolution identify unique, cell-specific gene expression patterns in CAV, suggesting the potential utility of peripheral gene expression biomarkers in diagnosing CAV.
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82
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Direder M, Laggner M, Copic D, Klas K, Bormann D, Schweiger T, Hoetzenecker K, Aigner C, Ankersmit HJ, Mildner M. Transcriptional profiling sheds light on the fibrotic aspects of idiopathic subglottic tracheal stenosis. Front Cell Dev Biol 2024; 12:1380902. [PMID: 39071799 PMCID: PMC11272577 DOI: 10.3389/fcell.2024.1380902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Accepted: 06/25/2024] [Indexed: 07/30/2024] Open
Abstract
Idiopathic subglottic stenosis (ISGS) is a rare fibrotic disease of the upper trachea with an unknown pathomechanism. It typically affects adult Caucasian female patients, leading to severe airway constrictions caused by progressive scar formation and inflammation with clinical symptoms of dyspnoea, stridor and potential changes to the voice. Endoscopic treatment frequently leads to recurrence, whereas surgical resection and reconstruction provides excellent long-term functional outcome. This study aimed to identify so far unrecognized pathologic aspects of ISGS using single cell RNA sequencing. Our scRNAseq analysis uncovered the cellular composition of the subglottic scar tissue, including the presence of a pathologic, profibrotic fibroblast subtype and the presence of Schwann cells in a profibrotic state. In addition, a pathology-associated increase of plasma cells was identified. Using extended bioinformatics analyses, we decoded pathology-associated changes of factors of the extracellular matrix. Our data identified ongoing fibrotic processes in ISGS and provide novel insights on the contribution of fibroblasts, Schwann cells and plasma cells to the pathogenesis of ISGS. This knowledge could impact the development of novel approaches for diagnosis and therapy of ISGS.
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Affiliation(s)
- Martin Direder
- Laboratory for Cardiac and Thoracic Diagnosis, Regeneration and Applied Immunology, Department of Thoracic Surgery, Medical University of Vienna, Vienna, Austria
- Aposcience AG, Vienna, Austria
- Department of Orthopedics and Trauma-Surgery, Medical University of Vienna, Vienna, Austria
| | - Maria Laggner
- Laboratory for Cardiac and Thoracic Diagnosis, Regeneration and Applied Immunology, Department of Thoracic Surgery, Medical University of Vienna, Vienna, Austria
- Aposcience AG, Vienna, Austria
| | - Dragan Copic
- Laboratory for Cardiac and Thoracic Diagnosis, Regeneration and Applied Immunology, Department of Thoracic Surgery, Medical University of Vienna, Vienna, Austria
- Aposcience AG, Vienna, Austria
- Department of Internal Medicine III, Division of Nephrology and Dialysis, Medical University of Vienna, Vienna, Austria
| | - Katharina Klas
- Laboratory for Cardiac and Thoracic Diagnosis, Regeneration and Applied Immunology, Department of Thoracic Surgery, Medical University of Vienna, Vienna, Austria
- Aposcience AG, Vienna, Austria
| | - Daniel Bormann
- Laboratory for Cardiac and Thoracic Diagnosis, Regeneration and Applied Immunology, Department of Thoracic Surgery, Medical University of Vienna, Vienna, Austria
- Aposcience AG, Vienna, Austria
| | - Thomas Schweiger
- Department of Thoracic Surgery, Medical University of Vienna, Vienna, Austria
| | - Konrad Hoetzenecker
- Department of Thoracic Surgery, Medical University of Vienna, Vienna, Austria
| | - Clemens Aigner
- Department of Thoracic Surgery, Medical University of Vienna, Vienna, Austria
| | - Hendrik Jan Ankersmit
- Laboratory for Cardiac and Thoracic Diagnosis, Regeneration and Applied Immunology, Department of Thoracic Surgery, Medical University of Vienna, Vienna, Austria
- Aposcience AG, Vienna, Austria
- Department of Thoracic Surgery, Medical University of Vienna, Vienna, Austria
| | - Michael Mildner
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
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83
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Stancill JS, Kasmani MY, Cui W, Corbett JA. Single Cell RNAseq Analysis of Cytokine-Treated Human Islets: Association of Cellular Stress with Impaired Cytokine Responsiveness. FUNCTION 2024; 5:zqae015. [PMID: 38985000 PMCID: PMC11237896 DOI: 10.1093/function/zqae015] [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: 01/26/2024] [Revised: 03/15/2024] [Accepted: 03/19/2024] [Indexed: 07/11/2024] Open
Abstract
Pancreatic β-cells are essential for survival, being the only cell type capable of insulin secretion. While they are believed to be vulnerable to damage by inflammatory cytokines such as interleukin-1 beta (IL-1β) and interferon-gamma, we have recently identified physiological roles for cytokine signaling in rodent β-cells that include the stimulation of antiviral and antimicrobial gene expression and the inhibition of viral replication. In this study, we examine cytokine-stimulated changes in gene expression in human islets using single-cell RNA sequencing. Surprisingly, the global responses of human islets to cytokine exposure were remarkably blunted compared to our previous observations in the mouse. The small population of human islet cells that were cytokine responsive exhibited increased expression of IL-1β-stimulated antiviral guanylate-binding proteins, just like in the mouse. Most human islet cells were not responsive to cytokines, and this lack of responsiveness was associated with high expression of genes encoding ribosomal proteins. We further correlated the expression levels of RPL5 with stress response genes, and when expressed at high levels, RPL5 is predictive of failure to respond to cytokines in all endocrine cells. We postulate that donor causes of death and isolation methodologies may contribute to stress of the islet preparation. Our findings indicate that activation of stress responses in human islets limits cytokine-stimulated gene expression, and we urge caution in the evaluation of studies that have examined cytokine-stimulated gene expression in human islets without evaluation of stress-related gene expression.
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Affiliation(s)
- Jennifer S Stancill
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Moujtaba Y Kasmani
- Department of Microbiology and Immunology, Medical College of Wisconsin, Milwaukee, WI 53226, USA
- Blood Research Institute, Versiti, Wisconsin, Milwaukee, WI 53226, USA
| | - Weiguo Cui
- Department of Microbiology and Immunology, Medical College of Wisconsin, Milwaukee, WI 53226, USA
- Blood Research Institute, Versiti, Wisconsin, Milwaukee, WI 53226, USA
| | - John A Corbett
- Department of Biochemistry, Medical College of Wisconsin, Milwaukee, WI 53226, USA
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84
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Brazovskaja A, Gomes T, Holtackers R, Wahle P, Körner C, He Z, Schaffer T, Eckel JC, Hänsel R, Santel M, Seimiya M, Denecke T, Dannemann M, Brosch M, Hampe J, Seehofer D, Damm G, Camp JG, Treutlein B. Cell atlas of the regenerating human liver after portal vein embolization. Nat Commun 2024; 15:5827. [PMID: 38992008 PMCID: PMC11239663 DOI: 10.1038/s41467-024-49236-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Accepted: 05/28/2024] [Indexed: 07/13/2024] Open
Abstract
The liver has the remarkable capacity to regenerate. In the clinic, regeneration is induced by portal vein embolization, which redirects portal blood flow, resulting in liver hypertrophy in locations with increased blood supply, and atrophy of embolized segments. Here, we apply single-cell and single-nucleus transcriptomics on healthy, hypertrophied, and atrophied patient-derived liver samples to explore cell states in the regenerating liver. Our data unveils pervasive upregulation of genes associated with developmental processes, cellular adhesion, and inflammation in post-portal vein embolization liver, disrupted portal-central hepatocyte zonation, and altered cell subtype composition of endothelial and immune cells. Interlineage crosstalk analysis reveals mesenchymal cells as an interaction hub between immune and endothelial cells, and highlights the importance of extracellular matrix proteins in liver regeneration. Moreover, we establish tissue-scale iterative indirect immunofluorescence imaging for high-dimensional spatial analysis of perivascular microenvironments, uncovering changes to tissue architecture in regenerating liver lobules. Altogether, our data is a rich resource revealing cellular and histological changes in human liver regeneration.
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Affiliation(s)
| | - Tomás Gomes
- Department of Biosystems Science and Engineering, ETH Zürich, Basel, Switzerland.
| | - Rene Holtackers
- Department of Biosystems Science and Engineering, ETH Zürich, Basel, Switzerland
| | - Philipp Wahle
- Department of Biosystems Science and Engineering, ETH Zürich, Basel, Switzerland
| | - Christiane Körner
- Department of Hepatobiliary Surgery and Visceral Transplantation, University Hospital, Leipzig University, Leipzig, Germany
| | - Zhisong He
- Department of Biosystems Science and Engineering, ETH Zürich, Basel, Switzerland
| | - Theresa Schaffer
- Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany
| | - Julian Connor Eckel
- Department of Hepatobiliary Surgery and Visceral Transplantation, University Hospital, Leipzig University, Leipzig, Germany
| | - René Hänsel
- Department of Hepatobiliary Surgery and Visceral Transplantation, University Hospital, Leipzig University, Leipzig, Germany
- Institute for Medical Informatics, Statistics and Epidemiology (IMISE), Leipzig University, Leipzig, Germany
| | - Malgorzata Santel
- Department of Biosystems Science and Engineering, ETH Zürich, Basel, Switzerland
| | - Makiko Seimiya
- Department of Biosystems Science and Engineering, ETH Zürich, Basel, Switzerland
| | - Timm Denecke
- Department of Diagnostic and Interventional Radiology, Leipzig University, Leipzig, Germany
| | - Michael Dannemann
- Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany
- Institute of Genomics, University of Tartu, Tartu, Estonia
| | - Mario Brosch
- Medical Department 1, University Hospital Dresden, Technical University Dresden, Dresden, Germany
- Center for Regenerative Therapies Dresden (CRTD), Technical University Dresden, Dresden, Germany
| | - Jochen Hampe
- Medical Department 1, University Hospital Dresden, Technical University Dresden, Dresden, Germany
- Center for Regenerative Therapies Dresden (CRTD), Technical University Dresden, Dresden, Germany
| | - Daniel Seehofer
- Department of Hepatobiliary Surgery and Visceral Transplantation, University Hospital, Leipzig University, Leipzig, Germany
| | - Georg Damm
- Department of Hepatobiliary Surgery and Visceral Transplantation, University Hospital, Leipzig University, Leipzig, Germany.
| | - J Gray Camp
- Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany.
- Institute of Human Biology (IHB), Roche Pharma Research and Early Development, Roche Innovation Center Basel, Basel, Switzerland.
| | - Barbara Treutlein
- Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany.
- Department of Biosystems Science and Engineering, ETH Zürich, Basel, Switzerland.
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85
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Wang Q, Antone J, Alsop E, Reiman R, Funk C, Bendl J, Dudley JT, Liang WS, Karr TL, Roussos P, Bennett DA, De Jager PL, Serrano GE, Beach TG, Van Keuren-Jensen K, Mastroeni D, Reiman EM, Readhead BP. Single cell transcriptomes and multiscale networks from persons with and without Alzheimer's disease. Nat Commun 2024; 15:5815. [PMID: 38987616 PMCID: PMC11237088 DOI: 10.1038/s41467-024-49790-0] [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: 10/27/2023] [Accepted: 06/13/2024] [Indexed: 07/12/2024] Open
Abstract
The emergence of single nucleus RNA sequencing (snRNA-seq) offers to revolutionize the study of Alzheimer's disease (AD). Integration with complementary multiomics data such as genetics, proteomics and clinical data provides powerful opportunities to link cell subpopulations and molecular networks with a broader disease-relevant context. We report snRNA-seq profiles from superior frontal gyrus samples from 101 well characterized subjects from the Banner Brain and Body Donation Program in combination with whole genome sequences. We report findings that link common AD risk variants with CR1 expression in oligodendrocytes as well as alterations in hematological parameters. We observed an AD-associated CD83(+) microglial subtype with unique molecular networks and which is associated with immunoglobulin IgG4 production in the transverse colon. Our major observations were replicated in two additional, independent snRNA-seq data sets. These findings illustrate the power of multi-tissue molecular profiling to contextualize snRNA-seq brain transcriptomics and reveal disease biology.
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Affiliation(s)
- Qi Wang
- ASU-Banner Neurodegenerative Disease Research Center, Arizona State University, Tempe, AZ, 85281, USA
| | - Jerry Antone
- Division of Neurogenomics, The Translational Genomics Research Institute, Phoenix, AZ, 85004, USA
| | - Eric Alsop
- Division of Neurogenomics, The Translational Genomics Research Institute, Phoenix, AZ, 85004, USA
| | - Rebecca Reiman
- Division of Neurogenomics, The Translational Genomics Research Institute, Phoenix, AZ, 85004, USA
| | - Cory Funk
- Institute for Systems Biology, Seattle, WA, 98109, USA
| | - Jaroslav Bendl
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Joel T Dudley
- ASU-Banner Neurodegenerative Disease Research Center, Arizona State University, Tempe, AZ, 85281, USA
| | - Winnie S Liang
- Division of Neurogenomics, The Translational Genomics Research Institute, Phoenix, AZ, 85004, USA
| | - Timothy L Karr
- ASU-Banner Neurodegenerative Disease Research Center, Arizona State University, Tempe, AZ, 85281, USA
| | - Panos Roussos
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - David A Bennett
- Rush Alzheimer's Disease Center, Rush University Medical Center, Chicago, IL, 60612, USA
| | - Philip L De Jager
- Department of Neurology, Center for Translational and Computational Neuroimmunology, Columbia University Irving Medical Center, New York, NY, 10032, USA
| | - Geidy E Serrano
- Civin Laboratory for Neuropathology, Banner Sun Health Research Institute, Sun City, AZ, 85351, USA
| | - Thomas G Beach
- Civin Laboratory for Neuropathology, Banner Sun Health Research Institute, Sun City, AZ, 85351, USA
| | | | - Diego Mastroeni
- ASU-Banner Neurodegenerative Disease Research Center, Arizona State University, Tempe, AZ, 85281, USA
| | - Eric M Reiman
- Banner Alzheimer's Institute, Phoenix, AZ, 85006, USA
| | - Benjamin P Readhead
- ASU-Banner Neurodegenerative Disease Research Center, Arizona State University, Tempe, AZ, 85281, USA.
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Rodrigues PF, Trsan T, Cvijetic G, Khantakova D, Panda SK, Liu Z, Ginhoux F, Cella M, Colonna M. Progenitors of distinct lineages shape the diversity of mature type 2 conventional dendritic cells. Immunity 2024; 57:1567-1585.e5. [PMID: 38821051 DOI: 10.1016/j.immuni.2024.05.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 02/15/2024] [Accepted: 05/07/2024] [Indexed: 06/02/2024]
Abstract
Conventional dendritic cells (cDC) are antigen-presenting cells comprising cDC1 and cDC2, responsible for priming naive CD8+ and CD4+ T cells, respectively. Recent studies have unveiled cDC2 heterogeneity and identified various cDC2 progenitors beyond the common DC progenitor (CDP), hinting at distinct cDC2 lineages. By generating Cd300ciCre-hCD2R26tdTomato reporter mice, we identified a bone marrow pro-cDC2 progenitor exclusively generating cDC2 in vitro and in vivo. Single-cell analyses and multiparametric flow cytometry demonstrated that pro-cDC2 encompasses myeloid-derived pre-cDC2 and lymphoid-derived plasmacytoid DC (pDC)-like precursors differentiating into a transcriptionally convergent cDC2 phenotype. Cd300c-traced cDC2 had distinct transcriptomic profiles, phenotypes, and tissue distributions compared with Ms4a3CreR26tdTomato lineage-traced DC3, a monocyte-DC progenitor (MDP)-derived subset that bypasses CDP. Mice with reduced Cd300c-traced cDC2 showed impaired humoral responses to T cell-dependent antigens. We conclude that progenitors of distinct lineages shape the diversity of mature cDC2 across tissues. Thus, ontogenesis may impact tissue immune responses.
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Affiliation(s)
- Patrick Fernandes Rodrigues
- Department of Pathology and Immunology, Washington University School of Medicine in Saint Louis, St. Louis, MO, USA
| | - Tihana Trsan
- Department of Pathology and Immunology, Washington University School of Medicine in Saint Louis, St. Louis, MO, USA
| | - Grozdan Cvijetic
- National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, MD, USA
| | - Darya Khantakova
- Department of Pathology and Immunology, Washington University School of Medicine in Saint Louis, St. Louis, MO, USA
| | - Santosh K Panda
- Department of Pathology and Immunology, Washington University School of Medicine in Saint Louis, St. Louis, MO, USA
| | - Zhaoyuan Liu
- Shanghai Institute of Immunology, Department of Immunology and Microbiology, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Florent Ginhoux
- Shanghai Institute of Immunology, Department of Immunology and Microbiology, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China; Institut Gustave Roussy, INSERM U1015, Bâtiment de Médecine Moléculaire 114 rue Edouard Vaillant, 94800 Villejuif, France; Singapore Immunology Network (SIgN), A(∗)STAR, 8A Biomedical Grove, Immunos Building, Level 3, Singapore 138648, Singapore
| | - Marina Cella
- Department of Pathology and Immunology, Washington University School of Medicine in Saint Louis, St. Louis, MO, USA
| | - Marco Colonna
- Department of Pathology and Immunology, Washington University School of Medicine in Saint Louis, St. Louis, MO, USA.
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87
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Banerjee R, Meyer TJ, Cam MC, Kaur S, Roberts DD. Differential regulation by CD47 and thrombospondin-1 of extramedullary erythropoiesis in mouse spleen. eLife 2024; 12:RP92679. [PMID: 38979889 PMCID: PMC11233134 DOI: 10.7554/elife.92679] [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] [Indexed: 07/10/2024] Open
Abstract
Extramedullary erythropoiesis is not expected in healthy adult mice, but erythropoietic gene expression was elevated in lineage-depleted spleen cells from Cd47-/- mice. Expression of several genes associated with early stages of erythropoiesis was elevated in mice lacking CD47 or its signaling ligand thrombospondin-1, consistent with previous evidence that this signaling pathway inhibits expression of multipotent stem cell transcription factors in spleen. In contrast, cells expressing markers of committed erythroid progenitors were more abundant in Cd47-/- spleens but significantly depleted in Thbs1-/- spleens. Single-cell transcriptome and flow cytometry analyses indicated that loss of CD47 is associated with accumulation and increased proliferation in spleen of Ter119-CD34+ progenitors and Ter119+CD34- committed erythroid progenitors with elevated mRNA expression of Kit, Ermap, and Tfrc. Induction of committed erythroid precursors is consistent with the known function of CD47 to limit the phagocytic removal of aged erythrocytes. Conversely, loss of thrombospondin-1 delays the turnover of aged red blood cells, which may account for the suppression of committed erythroid precursors in Thbs1-/- spleens relative to basal levels in wild-type mice. In addition to defining a role for CD47 to limit extramedullary erythropoiesis, these studies reveal a thrombospondin-1-dependent basal level of extramedullary erythropoiesis in adult mouse spleen.
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Affiliation(s)
- Rajdeep Banerjee
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of HealthBethesdaUnited States
| | - Thomas J Meyer
- CCR Collaborative Bioinformatics Resource, Office of Science and Technology Resources, National Cancer Institute, National Institutes of HealthBethesdaUnited States
| | - Margaret C Cam
- CCR Collaborative Bioinformatics Resource, Office of Science and Technology Resources, National Cancer Institute, National Institutes of HealthBethesdaUnited States
| | - Sukhbir Kaur
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of HealthBethesdaUnited States
| | - David D Roberts
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of HealthBethesdaUnited States
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88
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Gondal MN, Shah SUR, Chinnaiyan AM, Cieslik M. A systematic overview of single-cell transcriptomics databases, their use cases, and limitations. FRONTIERS IN BIOINFORMATICS 2024; 4:1417428. [PMID: 39040140 PMCID: PMC11260681 DOI: 10.3389/fbinf.2024.1417428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2024] [Accepted: 06/11/2024] [Indexed: 07/24/2024] Open
Abstract
Rapid advancements in high-throughput single-cell RNA-seq (scRNA-seq) technologies and experimental protocols have led to the generation of vast amounts of transcriptomic data that populates several online databases and repositories. Here, we systematically examined large-scale scRNA-seq databases, categorizing them based on their scope and purpose such as general, tissue-specific databases, disease-specific databases, cancer-focused databases, and cell type-focused databases. Next, we discuss the technical and methodological challenges associated with curating large-scale scRNA-seq databases, along with current computational solutions. We argue that understanding scRNA-seq databases, including their limitations and assumptions, is crucial for effectively utilizing this data to make robust discoveries and identify novel biological insights. Such platforms can help bridge the gap between computational and wet lab scientists through user-friendly web-based interfaces needed for democratizing access to single-cell data. These platforms would facilitate interdisciplinary research, enabling researchers from various disciplines to collaborate effectively. This review underscores the importance of leveraging computational approaches to unravel the complexities of single-cell data and offers a promising direction for future research in the field.
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Affiliation(s)
- Mahnoor N. Gondal
- Department of Computational Medicine and Bioinformatics, University of Michigan, Ann Arbor, MI, United States
- Michigan Center for Translational Pathology, University of Michigan, Ann Arbor, MI, United States
| | - Saad Ur Rehman Shah
- Gies College of Business, University of Illinois Business College, Champaign, MI, United States
| | - Arul M. Chinnaiyan
- Department of Computational Medicine and Bioinformatics, University of Michigan, Ann Arbor, MI, United States
- Michigan Center for Translational Pathology, University of Michigan, Ann Arbor, MI, United States
- Department of Pathology, University of Michigan, Ann Arbor, MI, United States
- Department of Urology, University of Michigan, Ann Arbor, MI, United States
- Howard Hughes Medical Institute, Ann Arbor, MI, United States
- University of Michigan Rogel Cancer Center, Ann Arbor, MI, United States
| | - Marcin Cieslik
- Department of Computational Medicine and Bioinformatics, University of Michigan, Ann Arbor, MI, United States
- Michigan Center for Translational Pathology, University of Michigan, Ann Arbor, MI, United States
- Department of Pathology, University of Michigan, Ann Arbor, MI, United States
- University of Michigan Rogel Cancer Center, Ann Arbor, MI, United States
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89
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Coulton A, Murai J, Qian D, Thakkar K, Lewis CE, Litchfield K. Using a pan-cancer atlas to investigate tumour associated macrophages as regulators of immunotherapy response. Nat Commun 2024; 15:5665. [PMID: 38969631 PMCID: PMC11226649 DOI: 10.1038/s41467-024-49885-8] [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: 02/27/2023] [Accepted: 06/24/2024] [Indexed: 07/07/2024] Open
Abstract
The paradigm for macrophage characterization has evolved from the simple M1/M2 dichotomy to a more complex model that encompasses the broad spectrum of macrophage phenotypic diversity, due to differences in ontogeny and/or local stimuli. We currently lack an in-depth pan-cancer single cell RNA-seq (scRNAseq) atlas of tumour-associated macrophages (TAMs) that fully captures this complexity. In addition, an increased understanding of macrophage diversity could help to explain the variable responses of cancer patients to immunotherapy. Our atlas includes well established macrophage subsets as well as a number of additional ones. We associate macrophage composition with tumour phenotype and show macrophage subsets can vary between primary and metastatic tumours growing in sites like the liver. We also examine macrophage-T cell functional cross talk and identify two subsets of TAMs associated with T cell activation. Analysis of TAM signatures in a large cohort of immune checkpoint inhibitor-treated patients (CPI1000 + ) identify multiple TAM subsets associated with response, including the presence of a subset of TAMs that upregulate collagen-related genes. Finally, we demonstrate the utility of our data as a resource and reference atlas for mapping of novel macrophage datasets using projection. Overall, these advances represent an important step in both macrophage classification and overcoming resistance to immunotherapies in cancer.
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Affiliation(s)
- Alexander Coulton
- The Tumour Immunogenomics and Immunosurveillance (TIGI) Lab, UCL Cancer Institute, London, WC1E 6DD, UK
| | - Jun Murai
- The Tumour Immunogenomics and Immunosurveillance (TIGI) Lab, UCL Cancer Institute, London, WC1E 6DD, UK
| | - Danwen Qian
- The Tumour Immunogenomics and Immunosurveillance (TIGI) Lab, UCL Cancer Institute, London, WC1E 6DD, UK
| | - Krupa Thakkar
- The Tumour Immunogenomics and Immunosurveillance (TIGI) Lab, UCL Cancer Institute, London, WC1E 6DD, UK
| | - Claire E Lewis
- Department of Oncology and Metabolism, University of Sheffield Medical School, Beech Hill Road, Sheffield, Yorkshire, S10 2RX, UK.
| | - Kevin Litchfield
- The Tumour Immunogenomics and Immunosurveillance (TIGI) Lab, UCL Cancer Institute, London, WC1E 6DD, UK.
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90
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Defard T, Laporte H, Ayan M, Soulier J, Curras-Alonso S, Weber C, Massip F, Londoño-Vallejo JA, Fouillade C, Mueller F, Walter T. A point cloud segmentation framework for image-based spatial transcriptomics. Commun Biol 2024; 7:823. [PMID: 38971915 PMCID: PMC11227573 DOI: 10.1038/s42003-024-06480-3] [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: 12/06/2023] [Accepted: 06/20/2024] [Indexed: 07/08/2024] Open
Abstract
Recent progress in image-based spatial RNA profiling enables to spatially resolve tens to hundreds of distinct RNA species with high spatial resolution. It presents new avenues for comprehending tissue organization. In this context, the ability to assign detected RNA transcripts to individual cells is crucial for downstream analyses, such as in-situ cell type calling. Yet, accurate cell segmentation can be challenging in tissue data, in particular in the absence of a high-quality membrane marker. To address this issue, we introduce ComSeg, a segmentation algorithm that operates directly on single RNA positions and that does not come with implicit or explicit priors on cell shape. ComSeg is applicable in complex tissues with arbitrary cell shapes. Through comprehensive evaluations on simulated and experimental datasets, we show that ComSeg outperforms existing state-of-the-art methods for in-situ single-cell RNA profiling and in-situ cell type calling. ComSeg is available as a documented and open source pip package at https://github.com/fish-quant/ComSeg .
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Affiliation(s)
- Thomas Defard
- Centre for Computational Biology (CBIO), Mines Paris, PSL University, 75006, Paris, France
- Institut Curie, PSL University, 75005, Paris, France
- INSERM, U900, 75005, Paris, France
- Institut Pasteur, Université Paris Cité, Imaging and Modeling Unit, F-75015, Paris, France
- Institut Pasteur, Université Paris Cité, Photonic Bio-Imaging, Centre de Ressources et Recherches Technologiques (UTechS-PBI, C2RT), F-75015, Paris, France
| | - Hugo Laporte
- Institut Curie, Inserm U1021-CNRS UMR 3347, University Paris-Saclay, PSL Research University, Centre Universitaire, Orsay, Cedex, France
- Institute of Cell Biology (Cancer Research), University Hospital Essen, Essen, Germany
| | - Mallick Ayan
- Institut Curie, Inserm U1021-CNRS UMR 3347, University Paris-Saclay, PSL Research University, Centre Universitaire, Orsay, Cedex, France
| | - Juliette Soulier
- Institut Curie, Inserm U1021-CNRS UMR 3347, University Paris-Saclay, PSL Research University, Centre Universitaire, Orsay, Cedex, France
| | - Sandra Curras-Alonso
- Institut Curie, Inserm U1021-CNRS UMR 3347, University Paris-Saclay, PSL Research University, Centre Universitaire, Orsay, Cedex, France
| | - Christian Weber
- Institut Pasteur, Université Paris Cité, Imaging and Modeling Unit, F-75015, Paris, France
- Institut Pasteur, Université Paris Cité, Photonic Bio-Imaging, Centre de Ressources et Recherches Technologiques (UTechS-PBI, C2RT), F-75015, Paris, France
| | - Florian Massip
- Centre for Computational Biology (CBIO), Mines Paris, PSL University, 75006, Paris, France
- Institut Curie, PSL University, 75005, Paris, France
- INSERM, U900, 75005, Paris, France
| | - José-Arturo Londoño-Vallejo
- Institut Curie, Inserm U1021-CNRS UMR 3347, University Paris-Saclay, PSL Research University, Centre Universitaire, Orsay, Cedex, France
| | - Charles Fouillade
- Institut Curie, Inserm U1021-CNRS UMR 3347, University Paris-Saclay, PSL Research University, Centre Universitaire, Orsay, Cedex, France
| | - Florian Mueller
- Institut Pasteur, Université Paris Cité, Imaging and Modeling Unit, F-75015, Paris, France.
- Institut Pasteur, Université Paris Cité, Photonic Bio-Imaging, Centre de Ressources et Recherches Technologiques (UTechS-PBI, C2RT), F-75015, Paris, France.
| | - Thomas Walter
- Centre for Computational Biology (CBIO), Mines Paris, PSL University, 75006, Paris, France.
- Institut Curie, PSL University, 75005, Paris, France.
- INSERM, U900, 75005, Paris, France.
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91
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Mori M, Sakamoto A, Kawakami R, Guo L, Slenders L, Mosquera JV, Ghosh SKB, Wesseling M, Shiraki T, Bellissard A, Shah P, Weinkauf CC, Konishi T, Sato Y, Cornelissen A, Kawai K, Jinnouchi H, Xu W, Vozenilek AE, Williams D, Tanaka T, Sekimoto T, Kelly MC, Fernandez R, Grogan A, Coslet AJ, Fedotova A, Kurse A, Mokry M, Romero ME, Kolodgie FD, Pasterkamp G, Miller CL, Virmani R, Finn AV. CD163 + Macrophages Induce Endothelial-to-Mesenchymal Transition in Atheroma. Circ Res 2024; 135:e4-e23. [PMID: 38860377 DOI: 10.1161/circresaha.123.324082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Accepted: 05/29/2024] [Indexed: 06/12/2024]
Abstract
BACKGROUND Cell phenotype switching is increasingly being recognized in atherosclerosis. However, our understanding of the exact stimuli for such cellular transformations and their significance for human atherosclerosis is still evolving. Intraplaque hemorrhage is thought to be a major contributor to plaque progression in part by stimulating the influx of CD163+ macrophages. Here, we explored the hypothesis that CD163+ macrophages cause plaque progression through the induction of proapoptotic endothelial-to-mesenchymal transition (EndMT) within the fibrous cap. METHODS Human coronary artery sections from CVPath's autopsy registry were selected for pathological analysis. Athero-prone ApoE-/- and ApoE-/-/CD163-/- mice were used for in vivo studies. Human peripheral blood mononuclear cell-induced macrophages and human aortic endothelial cells were used for in vitro experiments. RESULTS In 107 lesions with acute coronary plaque rupture, 55% had pathological evidence of intraplaque hemorrhage in nonculprit vessels/lesions. Thinner fibrous cap, greater CD163+ macrophage accumulation, and a larger number of CD31/FSP-1 (fibroblast specific protein-1) double-positive cells and TUNEL (terminal deoxynucleotidyl transferase-dUTP nick end labeling) positive cells in the fibrous cap were observed in nonculprit intraplaque hemorrhage lesions, as well as in culprit rupture sections versus nonculprit fibroatheroma sections. Human aortic endothelial cells cultured with supernatants from hemoglobin/haptoglobin-exposed macrophages showed that increased mesenchymal marker proteins (transgelin and FSP-1) while endothelial markers (VE-cadherin and CD31) were reduced, suggesting EndMT induction. Activation of NF-κB (nuclear factor kappa β) signaling by proinflammatory cytokines released from CD163+ macrophages directly regulated the expression of Snail, a critical transcription factor during EndMT induction. Western blot analysis for cleaved caspase-3 and microarray analysis of human aortic endothelial cells indicated that apoptosis was stimulated during CD163+ macrophage-induced EndMT. Additionally, CD163 deletion in athero-prone mice suggested that CD163 is required for EndMT and plaque progression. Using single-cell RNA sequencing from human carotid endarterectomy lesions, a population of EndMT was detected, which demonstrated significant upregulation of apoptosis-related genes. CONCLUSIONS CD163+ macrophages provoke EndMT, which may promote plaque progression through fibrous cap thinning.
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MESH Headings
- Humans
- Antigens, Differentiation, Myelomonocytic/metabolism
- Antigens, Differentiation, Myelomonocytic/genetics
- Animals
- Antigens, CD/metabolism
- Antigens, CD/genetics
- Macrophages/metabolism
- Macrophages/pathology
- Plaque, Atherosclerotic/pathology
- Plaque, Atherosclerotic/metabolism
- Receptors, Cell Surface/metabolism
- Receptors, Cell Surface/genetics
- Mice
- Cells, Cultured
- Endothelial Cells/metabolism
- Endothelial Cells/pathology
- Male
- Mice, Knockout, ApoE
- Mice, Inbred C57BL
- Apoptosis
- Female
- Epithelial-Mesenchymal Transition
- Coronary Vessels/pathology
- Coronary Vessels/metabolism
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Affiliation(s)
- Masayuki Mori
- Department of Pathology, CVPath Institute, Inc, Gaithersburg, MD (M. Mori, A.S., R.K., L.G., S.K.B.G., T. Shiraki, A.B., P.S., T.K., Y.S., A.C., K.K., H.J., W.X., A.E.V., D.W., T.T., T. Sekimoto, R.F., A.G., A.J.C., A.F., A.K., M.E.R., F.D.K., R.V., A.V.F.)
| | - Atsushi Sakamoto
- Department of Pathology, CVPath Institute, Inc, Gaithersburg, MD (M. Mori, A.S., R.K., L.G., S.K.B.G., T. Shiraki, A.B., P.S., T.K., Y.S., A.C., K.K., H.J., W.X., A.E.V., D.W., T.T., T. Sekimoto, R.F., A.G., A.J.C., A.F., A.K., M.E.R., F.D.K., R.V., A.V.F.)
- Hamamatsu University School of Medicine, Shizuoka, Japan (A.S.)
| | - Rika Kawakami
- Department of Pathology, CVPath Institute, Inc, Gaithersburg, MD (M. Mori, A.S., R.K., L.G., S.K.B.G., T. Shiraki, A.B., P.S., T.K., Y.S., A.C., K.K., H.J., W.X., A.E.V., D.W., T.T., T. Sekimoto, R.F., A.G., A.J.C., A.F., A.K., M.E.R., F.D.K., R.V., A.V.F.)
| | - Liang Guo
- Department of Pathology, CVPath Institute, Inc, Gaithersburg, MD (M. Mori, A.S., R.K., L.G., S.K.B.G., T. Shiraki, A.B., P.S., T.K., Y.S., A.C., K.K., H.J., W.X., A.E.V., D.W., T.T., T. Sekimoto, R.F., A.G., A.J.C., A.F., A.K., M.E.R., F.D.K., R.V., A.V.F.)
| | - Lotte Slenders
- University Medical Center Utrecht, the Netherlands (L.S., M.W., M. Mokry, G.P.)
| | - Jose Verdezoto Mosquera
- Department of Public Health Sciences, Department of Biochemistry and Molecular Genetics, Center for Public Health Genomics, University of Virginia, Charlottesville (J.V.M., C.L.M.)
| | - Saikat Kumar B Ghosh
- Department of Pathology, CVPath Institute, Inc, Gaithersburg, MD (M. Mori, A.S., R.K., L.G., S.K.B.G., T. Shiraki, A.B., P.S., T.K., Y.S., A.C., K.K., H.J., W.X., A.E.V., D.W., T.T., T. Sekimoto, R.F., A.G., A.J.C., A.F., A.K., M.E.R., F.D.K., R.V., A.V.F.)
| | - Marian Wesseling
- University Medical Center Utrecht, the Netherlands (L.S., M.W., M. Mokry, G.P.)
| | - Tatsuya Shiraki
- Department of Pathology, CVPath Institute, Inc, Gaithersburg, MD (M. Mori, A.S., R.K., L.G., S.K.B.G., T. Shiraki, A.B., P.S., T.K., Y.S., A.C., K.K., H.J., W.X., A.E.V., D.W., T.T., T. Sekimoto, R.F., A.G., A.J.C., A.F., A.K., M.E.R., F.D.K., R.V., A.V.F.)
| | - Arielle Bellissard
- Department of Pathology, CVPath Institute, Inc, Gaithersburg, MD (M. Mori, A.S., R.K., L.G., S.K.B.G., T. Shiraki, A.B., P.S., T.K., Y.S., A.C., K.K., H.J., W.X., A.E.V., D.W., T.T., T. Sekimoto, R.F., A.G., A.J.C., A.F., A.K., M.E.R., F.D.K., R.V., A.V.F.)
| | - Palak Shah
- Department of Pathology, CVPath Institute, Inc, Gaithersburg, MD (M. Mori, A.S., R.K., L.G., S.K.B.G., T. Shiraki, A.B., P.S., T.K., Y.S., A.C., K.K., H.J., W.X., A.E.V., D.W., T.T., T. Sekimoto, R.F., A.G., A.J.C., A.F., A.K., M.E.R., F.D.K., R.V., A.V.F.)
| | | | - Takao Konishi
- Department of Pathology, CVPath Institute, Inc, Gaithersburg, MD (M. Mori, A.S., R.K., L.G., S.K.B.G., T. Shiraki, A.B., P.S., T.K., Y.S., A.C., K.K., H.J., W.X., A.E.V., D.W., T.T., T. Sekimoto, R.F., A.G., A.J.C., A.F., A.K., M.E.R., F.D.K., R.V., A.V.F.)
| | - Yu Sato
- Department of Pathology, CVPath Institute, Inc, Gaithersburg, MD (M. Mori, A.S., R.K., L.G., S.K.B.G., T. Shiraki, A.B., P.S., T.K., Y.S., A.C., K.K., H.J., W.X., A.E.V., D.W., T.T., T. Sekimoto, R.F., A.G., A.J.C., A.F., A.K., M.E.R., F.D.K., R.V., A.V.F.)
| | - Anne Cornelissen
- Department of Pathology, CVPath Institute, Inc, Gaithersburg, MD (M. Mori, A.S., R.K., L.G., S.K.B.G., T. Shiraki, A.B., P.S., T.K., Y.S., A.C., K.K., H.J., W.X., A.E.V., D.W., T.T., T. Sekimoto, R.F., A.G., A.J.C., A.F., A.K., M.E.R., F.D.K., R.V., A.V.F.)
| | - Kenji Kawai
- Department of Pathology, CVPath Institute, Inc, Gaithersburg, MD (M. Mori, A.S., R.K., L.G., S.K.B.G., T. Shiraki, A.B., P.S., T.K., Y.S., A.C., K.K., H.J., W.X., A.E.V., D.W., T.T., T. Sekimoto, R.F., A.G., A.J.C., A.F., A.K., M.E.R., F.D.K., R.V., A.V.F.)
| | - Hiroyuki Jinnouchi
- Department of Pathology, CVPath Institute, Inc, Gaithersburg, MD (M. Mori, A.S., R.K., L.G., S.K.B.G., T. Shiraki, A.B., P.S., T.K., Y.S., A.C., K.K., H.J., W.X., A.E.V., D.W., T.T., T. Sekimoto, R.F., A.G., A.J.C., A.F., A.K., M.E.R., F.D.K., R.V., A.V.F.)
| | - Weili Xu
- Department of Pathology, CVPath Institute, Inc, Gaithersburg, MD (M. Mori, A.S., R.K., L.G., S.K.B.G., T. Shiraki, A.B., P.S., T.K., Y.S., A.C., K.K., H.J., W.X., A.E.V., D.W., T.T., T. Sekimoto, R.F., A.G., A.J.C., A.F., A.K., M.E.R., F.D.K., R.V., A.V.F.)
| | - Aimee E Vozenilek
- Department of Pathology, CVPath Institute, Inc, Gaithersburg, MD (M. Mori, A.S., R.K., L.G., S.K.B.G., T. Shiraki, A.B., P.S., T.K., Y.S., A.C., K.K., H.J., W.X., A.E.V., D.W., T.T., T. Sekimoto, R.F., A.G., A.J.C., A.F., A.K., M.E.R., F.D.K., R.V., A.V.F.)
| | - Desiree Williams
- Department of Pathology, CVPath Institute, Inc, Gaithersburg, MD (M. Mori, A.S., R.K., L.G., S.K.B.G., T. Shiraki, A.B., P.S., T.K., Y.S., A.C., K.K., H.J., W.X., A.E.V., D.W., T.T., T. Sekimoto, R.F., A.G., A.J.C., A.F., A.K., M.E.R., F.D.K., R.V., A.V.F.)
| | - Takamasa Tanaka
- Department of Pathology, CVPath Institute, Inc, Gaithersburg, MD (M. Mori, A.S., R.K., L.G., S.K.B.G., T. Shiraki, A.B., P.S., T.K., Y.S., A.C., K.K., H.J., W.X., A.E.V., D.W., T.T., T. Sekimoto, R.F., A.G., A.J.C., A.F., A.K., M.E.R., F.D.K., R.V., A.V.F.)
| | - Teruo Sekimoto
- Department of Pathology, CVPath Institute, Inc, Gaithersburg, MD (M. Mori, A.S., R.K., L.G., S.K.B.G., T. Shiraki, A.B., P.S., T.K., Y.S., A.C., K.K., H.J., W.X., A.E.V., D.W., T.T., T. Sekimoto, R.F., A.G., A.J.C., A.F., A.K., M.E.R., F.D.K., R.V., A.V.F.)
| | - Michael C Kelly
- Single Cell Analysis Facility, Frederick National Laboratory for Cancer Research, National Cancer Institute, National Institute of Health, Bethesda, MD (M.C.K.)
| | - Raquel Fernandez
- Department of Pathology, CVPath Institute, Inc, Gaithersburg, MD (M. Mori, A.S., R.K., L.G., S.K.B.G., T. Shiraki, A.B., P.S., T.K., Y.S., A.C., K.K., H.J., W.X., A.E.V., D.W., T.T., T. Sekimoto, R.F., A.G., A.J.C., A.F., A.K., M.E.R., F.D.K., R.V., A.V.F.)
| | - Alyssa Grogan
- Department of Pathology, CVPath Institute, Inc, Gaithersburg, MD (M. Mori, A.S., R.K., L.G., S.K.B.G., T. Shiraki, A.B., P.S., T.K., Y.S., A.C., K.K., H.J., W.X., A.E.V., D.W., T.T., T. Sekimoto, R.F., A.G., A.J.C., A.F., A.K., M.E.R., F.D.K., R.V., A.V.F.)
| | - A J Coslet
- Department of Pathology, CVPath Institute, Inc, Gaithersburg, MD (M. Mori, A.S., R.K., L.G., S.K.B.G., T. Shiraki, A.B., P.S., T.K., Y.S., A.C., K.K., H.J., W.X., A.E.V., D.W., T.T., T. Sekimoto, R.F., A.G., A.J.C., A.F., A.K., M.E.R., F.D.K., R.V., A.V.F.)
| | - Alisa Fedotova
- Department of Pathology, CVPath Institute, Inc, Gaithersburg, MD (M. Mori, A.S., R.K., L.G., S.K.B.G., T. Shiraki, A.B., P.S., T.K., Y.S., A.C., K.K., H.J., W.X., A.E.V., D.W., T.T., T. Sekimoto, R.F., A.G., A.J.C., A.F., A.K., M.E.R., F.D.K., R.V., A.V.F.)
| | - Anjali Kurse
- Department of Pathology, CVPath Institute, Inc, Gaithersburg, MD (M. Mori, A.S., R.K., L.G., S.K.B.G., T. Shiraki, A.B., P.S., T.K., Y.S., A.C., K.K., H.J., W.X., A.E.V., D.W., T.T., T. Sekimoto, R.F., A.G., A.J.C., A.F., A.K., M.E.R., F.D.K., R.V., A.V.F.)
| | - Michal Mokry
- University Medical Center Utrecht, the Netherlands (L.S., M.W., M. Mokry, G.P.)
| | - Maria E Romero
- Department of Pathology, CVPath Institute, Inc, Gaithersburg, MD (M. Mori, A.S., R.K., L.G., S.K.B.G., T. Shiraki, A.B., P.S., T.K., Y.S., A.C., K.K., H.J., W.X., A.E.V., D.W., T.T., T. Sekimoto, R.F., A.G., A.J.C., A.F., A.K., M.E.R., F.D.K., R.V., A.V.F.)
| | - Frank D Kolodgie
- Department of Pathology, CVPath Institute, Inc, Gaithersburg, MD (M. Mori, A.S., R.K., L.G., S.K.B.G., T. Shiraki, A.B., P.S., T.K., Y.S., A.C., K.K., H.J., W.X., A.E.V., D.W., T.T., T. Sekimoto, R.F., A.G., A.J.C., A.F., A.K., M.E.R., F.D.K., R.V., A.V.F.)
| | - Gerard Pasterkamp
- Department of Pathology, CVPath Institute, Inc, Gaithersburg, MD (M. Mori, A.S., R.K., L.G., S.K.B.G., T. Shiraki, A.B., P.S., T.K., Y.S., A.C., K.K., H.J., W.X., A.E.V., D.W., T.T., T. Sekimoto, R.F., A.G., A.J.C., A.F., A.K., M.E.R., F.D.K., R.V., A.V.F.)
- University Medical Center Utrecht, the Netherlands (L.S., M.W., M. Mokry, G.P.)
| | - Clint L Miller
- Department of Public Health Sciences, Department of Biochemistry and Molecular Genetics, Center for Public Health Genomics, University of Virginia, Charlottesville (J.V.M., C.L.M.)
| | - Renu Virmani
- Department of Pathology, CVPath Institute, Inc, Gaithersburg, MD (M. Mori, A.S., R.K., L.G., S.K.B.G., T. Shiraki, A.B., P.S., T.K., Y.S., A.C., K.K., H.J., W.X., A.E.V., D.W., T.T., T. Sekimoto, R.F., A.G., A.J.C., A.F., A.K., M.E.R., F.D.K., R.V., A.V.F.)
| | - Aloke V Finn
- Department of Pathology, CVPath Institute, Inc, Gaithersburg, MD (M. Mori, A.S., R.K., L.G., S.K.B.G., T. Shiraki, A.B., P.S., T.K., Y.S., A.C., K.K., H.J., W.X., A.E.V., D.W., T.T., T. Sekimoto, R.F., A.G., A.J.C., A.F., A.K., M.E.R., F.D.K., R.V., A.V.F.)
- University of Maryland School of Medicine, Baltimore (A.V.F.)
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92
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Sunusi U, Ziegelmeyer B, Osuji I, Medvedovic M, Todd H, Abou-Khalil J, Zimmermann N. Pathophysiology of hypereosinophilia-associated heart disease. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.07.03.601845. [PMID: 39005455 PMCID: PMC11245001 DOI: 10.1101/2024.07.03.601845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/16/2024]
Abstract
Background Cardiac complications in patients with hypereosinophilia cause significant morbidity and mortality. However, mechanisms of how eosinophilic inflammation causes heart damage are poorly understood. Methods We developed a model of hypereosinophilia-associated heart disease by challenging hypereosinophilic mice with peptide from the cardiac myosin heavy chain. Disease outcomes were measured by histology, immunohistochemistry, flow cytometry, and measurement of cells and biomarkers in peripheral blood. Eosinophil dependence was determined by using eosinophil-deficient mice (ΔdblGATA). Single cells from heart were subjected to single cell RNA sequencing to assess cell composition, subtypes and expression profiles. Results Mice challenged with myocarditic and control peptide had peripheral blood leukocytosis, but only those challenged with myocarditic peptide had heart inflammation. Heart tissue was infiltrated by eosinophil-rich inflammatory infiltrates associated with cardiomyocyte damage. Disease penetrance and severity were dependent on the presence of eosinophils. Single cell RNA sequencing showed enrichment of myeloid cells, T-cells and granulocytes (neutrophils and eosinophils) in the myocarditic mice. Macrophages were M2 skewed, and eosinophils had an activated phenotype. Gene enrichment analysis identified several pathways potentially involved in pathophysiology of disease. Conclusion Eosinophils are required for heart damage in hypereosinophilia-associated heart disease. Additionally, myeloid cells, granulocytes and T-cell cooperatively or independently participate in the pathogenesis of hypereosinophilia-associated heart disease.
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93
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Furuya H, Toda Y, Iwata A, Kanai M, Kato K, Kumagai T, Kageyama T, Tanaka S, Fujimura L, Sakamoto A, Hatano M, Suto A, Suzuki K, Nakajima H. Stage-specific GATA3 induction promotes ILC2 development after lineage commitment. Nat Commun 2024; 15:5610. [PMID: 38969652 PMCID: PMC11226602 DOI: 10.1038/s41467-024-49881-y] [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: 03/27/2023] [Accepted: 06/24/2024] [Indexed: 07/07/2024] Open
Abstract
Group 2 innate lymphoid cells (ILC2s) are a subset of innate lymphocytes that produce type 2 cytokines, including IL-4, IL-5, and IL-13. GATA3 is a critical transcription factor for ILC2 development at multiple stages. However, when and how GATA3 is induced to the levels required for ILC2 development remains unclear. Herein, we identify ILC2-specific GATA3-related tandem super-enhancers (G3SE) that induce high GATA3 in ILC2-committed precursors. G3SE-deficient mice exhibit ILC2 deficiency in the bone marrow, lung, liver, and small intestine with minimal impact on other ILC lineages or Th2 cells. Single-cell RNA-sequencing and subsequent flow cytometry analysis show that GATA3 induction mechanism, which is required for entering the ILC2 stage, is lost in IL-17RB+PD-1- late ILC2-committed precursor stage in G3SE-deficient mice. Cnot6l, part of the CCR4-NOT deadenylase complex, is a possible GATA3 target during ILC2 development. Our findings implicate a stage-specific regulatory mechanism for GATA3 expression during ILC2 development.
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Affiliation(s)
- Hiroki Furuya
- Department of Allergy and Clinical Immunology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Yosuke Toda
- Department of Allergy and Clinical Immunology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Arifumi Iwata
- Department of Allergy and Clinical Immunology, Graduate School of Medicine, Chiba University, Chiba, Japan.
| | - Mizuki Kanai
- Department of Allergy and Clinical Immunology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Kodai Kato
- Department of Allergy and Clinical Immunology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Takashi Kumagai
- Department of Allergy and Clinical Immunology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Takahiro Kageyama
- Department of Allergy and Clinical Immunology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Shigeru Tanaka
- Department of Allergy and Clinical Immunology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Lisa Fujimura
- Biomedical Research Center, Chiba University, Chiba, Japan
| | - Akemi Sakamoto
- Biomedical Research Center, Chiba University, Chiba, Japan
- Department of Biomedical Science, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Masahiko Hatano
- Biomedical Research Center, Chiba University, Chiba, Japan
- Department of Biomedical Science, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Akira Suto
- Department of Allergy and Clinical Immunology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Kotaro Suzuki
- Department of Allergy and Clinical Immunology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Hiroshi Nakajima
- Department of Allergy and Clinical Immunology, Graduate School of Medicine, Chiba University, Chiba, Japan.
- Chiba University Synergy Institute for Futuristic Mucosal Vaccine Research and Development (cSIMVa), Chiba, Japan.
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94
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Howe JR, Chan CL, Lee D, Blanquart M, Romero HK, Zadina AN, Lemieux ME, Mills F, Desplats PA, Tye KM, Root CM. Control of innate olfactory valence by segregated cortical amygdala circuits. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.06.26.600895. [PMID: 38979308 PMCID: PMC11230396 DOI: 10.1101/2024.06.26.600895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 07/10/2024]
Abstract
Animals perform innate behaviors that are stereotyped responses to specific evolutionarily relevant stimuli in the absence of prior learning or experience. These behaviors can be reduced to an axis of valence, whereby specific odors evoke approach or avoidance. The cortical amygdala (plCoA) mediates innate attraction and aversion to odor. However, little is known about how this brain area gives rise to behaviors of opposing motivational valence. Here, we sought to define the circuit features of plCoA that give rise to innate olfactory behaviors of valence. We characterized the physiology, gene expression, and projections of this structure, identifying a divergent, topographic organization that selectively controls innate attraction and avoidance to odor. First, we examined odor-evoked responses in these areas and found sparse encoding of odor identity, but not valence. We next considered a topographic organization and found that optogenetic stimulation of the anterior and posterior domains of plCoA elicits attraction and avoidance, respectively, suggesting a functional axis for valence. Using single cell and spatial RNA sequencing, we identified the molecular cell types in plCoA, revealing an anteroposterior gradient in cell types, whereby anterior glutamatergic neurons preferentially express Slc17a6 and posterior neurons express Slc17a7. Activation of these respective cell types recapitulates appetitive and aversive valence behaviors, and chemogenetic inhibition reveals partial necessity for valence responses to innate appetitive or aversive odors. Finally, we identified topographically organized circuits defined by projections, whereby anterior neurons preferentially project to medial amygdala, and posterior neurons preferentially project to nucleus accumbens, which are respectively sufficient and necessary for innate negative and positive olfactory valence. Together, these data advance our understanding of how the olfactory system generates stereotypic, hardwired attraction and avoidance, and supports a model whereby distinct, topographically distributed plCoA populations direct innate olfactory valence responses by signaling to divergent valence-specific targets, linking upstream olfactory identity to downstream valence behaviors, through a population code. This represents a novel circuit motif in which valence encoding is represented not by the firing properties of individual neurons, but by population level identity encoding that is routed through divergent targets to mediate distinct valence.
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Affiliation(s)
- James R Howe
- Department of Biological Sciences, Section of Neuroscience, University of California, San Diego, La Jolla, CA 92093, USA
- Neurosciences Graduate Program, University of California, San Diego, La Jolla, CA 92093, USA
- Department of Neurosciences, University of California, San Diego, La Jolla, CA 92093, USA
- These authors contributed equally
| | - Chung-Lung Chan
- Department of Biological Sciences, Section of Neuroscience, University of California, San Diego, La Jolla, CA 92093, USA
- These authors contributed equally
| | - Donghyung Lee
- Department of Biological Sciences, Section of Neuroscience, University of California, San Diego, La Jolla, CA 92093, USA
| | - Marlon Blanquart
- Department of Biological Sciences, Section of Neuroscience, University of California, San Diego, La Jolla, CA 92093, USA
| | - Haylie K Romero
- Neurosciences Graduate Program, University of California, San Diego, La Jolla, CA 92093, USA
- Department of Neurosciences, University of California, San Diego, La Jolla, CA 92093, USA
- Center for Circadian Biology, University of California, San Diego, La Jolla, CA 92093, USA
| | - Abigail N Zadina
- Zuckerman Mind Brain Behavior Institute, Columbia University, New York, NY, 10027, USA
| | | | - Fergil Mills
- Salk Institute for Biological Sciences, La Jolla, CA 92037, USA
| | - Paula A Desplats
- Department of Neurosciences, University of California, San Diego, La Jolla, CA 92093, USA
- Center for Circadian Biology, University of California, San Diego, La Jolla, CA 92093, USA
- Department of Pathology, University of California, San Diego, La Jolla, CA 92093, USA
| | - Kay M Tye
- Department of Biological Sciences, Section of Neuroscience, University of California, San Diego, La Jolla, CA 92093, USA
- Salk Institute for Biological Sciences, La Jolla, CA 92037, USA
- Howard Hughes Medical Institute, La Jolla, CA 92037, USA
| | - Cory M Root
- Department of Biological Sciences, Section of Neuroscience, University of California, San Diego, La Jolla, CA 92093, USA
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95
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Xu Z, Chen L, Lin X, Lyu Y, Zhou M, Chen H, Zhang H, Zhang T, Chen Y, Suo Y, Liang Q, Qin Z, Wang Y. Single Nucleus Total RNA Sequencing of Formalin-Fixed Paraffin-Embedded Gliomas. SMALL METHODS 2024:e2301801. [PMID: 38958078 DOI: 10.1002/smtd.202301801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Revised: 06/20/2024] [Indexed: 07/04/2024]
Abstract
Gliomas, the predominant form of brain cancer, comprise diverse malignant subtypes with limited curative therapies available. The insufficient understanding of their molecular diversity and evolutionary processes hinders the advancement of new treatments. Technical complexities associated with formalin-fixed paraffin-embedded (FFPE) clinical samples hinder molecular-level analyses of gliomas. Current single-cell RNA sequencing (scRNA-seq) platforms are inadequate for large-scale clinical applications. In this study, automated snRandom-seq is developed, a high-throughput single-nucleus total RNA sequencing platform optimized for archival FFPE samples. This platform integrates automated single-nucleus isolation and droplet barcoding systems with the random primer-based scRNA-seq chemistry, accommodating a broad spectrum of sample types. The automated snRandom-seq is applied to analyze 116 492 single nuclei from 17 FFPE samples of various glioma subtypes, including rare clinical samples and matched primary-recurrent glioblastomas (GBMs). The study provides comprehensive insights into the molecular characteristics of gliomas at the single-cell level. Abundant non-coding RNAs (ncRNAs) with distinct expression profiles across different glioma clusters and uncovered promising recurrence-related targets and pathways in primary-recurrent GBMs are identified. These findings establish automated snRandom-seq as a robust tool for scRNA-seq of FFPE samples, enabling exploration of molecular diversities and tumor evolution. This platform holds significant implications for large-scale integrative and retrospective clinical research.
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Affiliation(s)
- Ziye Xu
- Department of Laboratory Medicine of The First Affiliated Hospital & Liangzhu Laboratory, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Lingchao Chen
- Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, 200040, China
| | - Xin Lin
- Department of Laboratory Medicine of The First Affiliated Hospital & Liangzhu Laboratory, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Yuexiao Lyu
- Department of Laboratory Medicine of The First Affiliated Hospital & Liangzhu Laboratory, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | | | - Haide Chen
- Department of Laboratory Medicine of The First Affiliated Hospital & Liangzhu Laboratory, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | | | | | - Yu Chen
- Department of Laboratory Medicine of The First Affiliated Hospital & Liangzhu Laboratory, Zhejiang University School of Medicine, Hangzhou, 310003, China
- Zhejiang Key Laboratory of Clinical In Vitro Diagnostic Techniques, Hangzhou, 310003, China
| | - Yuanzhen Suo
- Department of Laboratory Medicine of The First Affiliated Hospital & Liangzhu Laboratory, Zhejiang University School of Medicine, Hangzhou, 310003, China
- Jiangsu Healthy Life Innovation Medical Technology Co., Ltd, Wuxi, 214174, China
| | | | - Zhiyong Qin
- Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, 200040, China
| | - Yongcheng Wang
- Department of Laboratory Medicine of The First Affiliated Hospital & Liangzhu Laboratory, Zhejiang University School of Medicine, Hangzhou, 310003, China
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Baumert BO, Maretti-Mira AC, Li Z, Stratakis N, Zhao Y, Walker DI, Wang H, Fischer FC, Jia Q, Valvi D, Bartell SM, Chen C, Inge T, Ryder J, Jenkins T, Sisley S, Xanthakos S, Kohli R, Rock S, Eckel SP, La Merrill MA, Aung MM, Salomon MP, McConnell R, Goodrich J, Conti DV, Golden-Mason L, Chatzi L. PFHpA alters lipid metabolism and increases the risk of metabolic dysfunction-associated steatotic liver disease in youth-a translational research framework. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2024:2024.07.01.24309775. [PMID: 39006440 PMCID: PMC11245066 DOI: 10.1101/2024.07.01.24309775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/16/2024]
Abstract
To address the growing epidemic of liver disease, particularly in pediatric populations, it is crucial to identify modifiable risk factors for the development and progression of metabolic dysfunction-associated steatotic liver disease (MASLD). Per- and polyfluoroalkyl substances (PFAS) are persistent ubiquitous chemicals and have emerged as potential risk factors for liver damage. However, their impact on the etiology and severity of MASLD remains largely unexplored in humans. This study aims to bridge the gap between human and in vitro studies to understand how exposure to perfluoroheptanoic acid (PFHpA), one of the emerging PFAS replacements which accumulates in high concentrations in the liver, contributes to MASLD risk and progression. First, we showed that PFHpA plasma concentrations were significantly associated with increased risk of MASLD in obese adolescents. Further, we examined the impact of PFHpA on hepatic metabolism using 3D human liver spheroids and single-cell transcriptomics to identify major hepatic pathways affected by PFHpA. Next, we integrated the in vivo and in vitro multi-omics datasets with a novel statistical approach which identified signatures of proteins and metabolites associated with MASLD development triggered by PFHpA exposure. In addition to characterizing the contribution of PFHpA to MASLD progression, our study provides a novel strategy to identify individuals at high risk of PFHpA-induced MASLD and develop early intervention strategies. Notably, our analysis revealed that the proteomic signature exhibited a stronger correlation between both PFHpA exposure and MASLD risk compared to the metabolomic signature. While establishing a clear connection between PFHpA exposure and MASLD progression in humans, our study delved into the molecular mechanisms through which PFHpA disrupts liver metabolism. Our in vitro findings revealed that PFHpA primarily impacts lipid metabolism, leading to a notable increase of lipid accumulation in human hepatocytes after PFHpA exposure. Among the pathways involved in lipid metabolism in hepatocytes, regulation of lipid metabolism by PPAR-a showed a remarkable activation. Moreover, the translational research framework we developed by integrating human and in vitro data provided us biomarkers to identify individuals at a high risk of MASLD due to PFHpA exposure. Our framework can inform policies on PFAS-induced liver disease and identify potential targets for prevention and treatment strategies.
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97
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Morales-Vicente DA, Tahira AC, Woellner-Santos D, Amaral MS, Berzoti-Coelho MG, Verjovski-Almeida S. The Human Developing Cerebral Cortex Is Characterized by an Elevated De Novo Expression of Long Noncoding RNAs in Excitatory Neurons. Mol Biol Evol 2024; 41:msae123. [PMID: 38913688 PMCID: PMC11221658 DOI: 10.1093/molbev/msae123] [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: 11/23/2023] [Revised: 06/12/2024] [Accepted: 06/14/2024] [Indexed: 06/26/2024] Open
Abstract
The outstanding human cognitive capacities are computed in the cerebral cortex, a mammalian-specific brain region and the place of massive biological innovation. Long noncoding RNAs have emerged as gene regulatory elements with higher evolutionary turnover than mRNAs. The many long noncoding RNAs identified in neural tissues make them candidates for molecular sources of cerebral cortex evolution and disease. Here, we characterized the genomic and cellular shifts that occurred during the evolution of the long noncoding RNA repertoire expressed in the developing cerebral cortex and explored putative roles for these long noncoding RNAs in the evolution of the human brain. Using transcriptomics and comparative genomics, we comprehensively annotated the cortical transcriptomes of humans, rhesus macaques, mice, and chickens and classified human cortical long noncoding RNAs into evolutionary groups as a function of their predicted minimal ages. Long noncoding RNA evolutionary groups showed differences in expression levels, splicing efficiencies, transposable element contents, genomic distributions, and transcription factor binding to their promoters. Furthermore, older long noncoding RNAs showed preferential expression in germinative zones, outer radial glial cells, and cortical inhibitory (GABAergic) neurons. In comparison, younger long noncoding RNAs showed preferential expression in cortical excitatory (glutamatergic) neurons, were enriched in primate and human-specific gene co-expression modules, and were dysregulated in neurodevelopmental disorders. These results suggest different evolutionary routes for older and younger cortical long noncoding RNAs, highlighting old long noncoding RNAs as a possible source of molecular evolution of conserved developmental programs; conversely, we propose that the de novo expression of primate- and human-specific young long noncoding RNAs is a putative source of molecular evolution and dysfunction of cortical excitatory neurons, warranting further investigation.
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Affiliation(s)
- David A Morales-Vicente
- Laboratório de Ciclo Celular, Instituto Butantan, São Paulo, Brazil
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, Brazil
| | - Ana C Tahira
- Laboratório de Ciclo Celular, Instituto Butantan, São Paulo, Brazil
| | - Daisy Woellner-Santos
- Laboratório de Ciclo Celular, Instituto Butantan, São Paulo, Brazil
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, Brazil
| | - Murilo S Amaral
- Laboratório de Ciclo Celular, Instituto Butantan, São Paulo, Brazil
| | - Maria G Berzoti-Coelho
- Laboratório de Ciclo Celular, Instituto Butantan, São Paulo, Brazil
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, Brazil
| | - Sergio Verjovski-Almeida
- Laboratório de Ciclo Celular, Instituto Butantan, São Paulo, Brazil
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, Brazil
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98
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Sethi R, Ang KS, Li M, Long Y, Ling J, Chen J. ezSingleCell: an integrated one-stop single-cell and spatial omics analysis platform for bench scientists. Nat Commun 2024; 15:5600. [PMID: 38961061 PMCID: PMC11222513 DOI: 10.1038/s41467-024-48188-2] [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: 03/22/2023] [Accepted: 04/22/2024] [Indexed: 07/05/2024] Open
Abstract
ezSingleCell is an interactive and easy-to-use application for analysing various single-cell and spatial omics data types without requiring prior programing knowledge. It combines the best-performing publicly available methods for in-depth data analysis, integration, and interactive data visualization. ezSingleCell consists of five modules, each designed to be a comprehensive workflow for one data type or task. In addition, ezSingleCell allows crosstalk between different modules within a unified interface. Acceptable input data can be in a variety of formats while the output consists of publication ready figures and tables. In-depth manuals and video tutorials are available to guide users on the analysis workflows and parameter adjustments to suit their study aims. ezSingleCell's streamlined interface can analyse a standard scRNA-seq dataset of 3000 cells in less than five minutes. ezSingleCell is available in two forms: an installation-free web application ( https://immunesinglecell.org/ezsc/ ) or a software package with a shinyApp interface ( https://github.com/JinmiaoChenLab/ezSingleCell2 ) for offline analysis.
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Affiliation(s)
- Raman Sethi
- Bioinformatics Institute (BII), Agency for Science, Technology and Research (A*STAR), 30 Biopolis Street, Matrix, Singapore, 138671, Singapore
| | - Kok Siong Ang
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), 61 Biopolis Drive, Proteos, Singapore, 138673, Singapore
| | - Mengwei Li
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), 61 Biopolis Drive, Proteos, Singapore, 138673, Singapore
| | - Yahui Long
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), 61 Biopolis Drive, Proteos, Singapore, 138673, Singapore
| | - Jingjing Ling
- Singapore Immunology Network (SIgN), Agency of Science, Technology and Research (A*STAR), 8A Biomedical Grove, Immunos, Singapore, 138648, Singapore
| | - Jinmiao Chen
- Bioinformatics Institute (BII), Agency for Science, Technology and Research (A*STAR), 30 Biopolis Street, Matrix, Singapore, 138671, Singapore.
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), 61 Biopolis Drive, Proteos, Singapore, 138673, Singapore.
- Immunology Translational Research Program, Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University of Singapore (NUS), 5 Science Drive 2, Blk MD4, Level 3, Singapore, 117545, Singapore.
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99
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Shwab EK, Gingerich DC, Man Z, Gamache J, Garrett ME, Crawford GE, Ashley-Koch AE, Serrano GE, Beach TG, Lutz MW, Chiba-Falek O. Single-nucleus multi-omics of Parkinson's disease reveals a glutamatergic neuronal subtype susceptible to gene dysregulation via alteration of transcriptional networks. Acta Neuropathol Commun 2024; 12:111. [PMID: 38956662 PMCID: PMC11218415 DOI: 10.1186/s40478-024-01803-1] [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: 05/22/2024] [Accepted: 05/27/2024] [Indexed: 07/04/2024] Open
Abstract
The genetic architecture of Parkinson's disease (PD) is complex and multiple brain cell subtypes are involved in the neuropathological progression of the disease. Here we aimed to advance our understanding of PD genetic complexity at a cell subtype precision level. Using parallel single-nucleus (sn)RNA-seq and snATAC-seq analyses we simultaneously profiled the transcriptomic and chromatin accessibility landscapes in temporal cortex tissues from 12 PD compared to 12 control subjects at a granular single cell resolution. An integrative bioinformatic pipeline was developed and applied for the analyses of these snMulti-omics datasets. The results identified a subpopulation of cortical glutamatergic excitatory neurons with remarkably altered gene expression in PD, including differentially-expressed genes within PD risk loci identified in genome-wide association studies (GWAS). This was the only neuronal subtype showing significant and robust overexpression of SNCA. Further characterization of this neuronal-subpopulation showed upregulation of specific pathways related to axon guidance, neurite outgrowth and post-synaptic structure, and downregulated pathways involved in presynaptic organization and calcium response. Additionally, we characterized the roles of three molecular mechanisms in governing PD-associated cell subtype-specific dysregulation of gene expression: (1) changes in cis-regulatory element accessibility to transcriptional machinery; (2) changes in the abundance of master transcriptional regulators, including YY1, SP3, and KLF16; (3) candidate regulatory variants in high linkage disequilibrium with PD-GWAS genomic variants impacting transcription factor binding affinities. To our knowledge, this study is the first and the most comprehensive interrogation of the multi-omics landscape of PD at a cell-subtype resolution. Our findings provide new insights into a precise glutamatergic neuronal cell subtype, causal genes, and non-coding regulatory variants underlying the neuropathological progression of PD, paving the way for the development of cell- and gene-targeted therapeutics to halt disease progression as well as genetic biomarkers for early preclinical diagnosis.
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Affiliation(s)
- E Keats Shwab
- Division of Translational Brain Sciences, Department of Neurology, Duke University School of Medicine, Duke University Medical Center, Durham, NC, 27710, USA
- Center for Genomic and Computational Biology, Duke University Medical Center, Durham, NC, 27708, USA
| | - Daniel C Gingerich
- Division of Translational Brain Sciences, Department of Neurology, Duke University School of Medicine, Duke University Medical Center, Durham, NC, 27710, USA
- Center for Genomic and Computational Biology, Duke University Medical Center, Durham, NC, 27708, USA
| | - Zhaohui Man
- Division of Translational Brain Sciences, Department of Neurology, Duke University School of Medicine, Duke University Medical Center, Durham, NC, 27710, USA
- Center for Genomic and Computational Biology, Duke University Medical Center, Durham, NC, 27708, USA
| | - Julia Gamache
- Division of Translational Brain Sciences, Department of Neurology, Duke University School of Medicine, Duke University Medical Center, Durham, NC, 27710, USA
- Center for Genomic and Computational Biology, Duke University Medical Center, Durham, NC, 27708, USA
| | - Melanie E Garrett
- Duke Molecular Physiology Institute, Duke University Medical Center, Durham, NC, 27701, USA
| | - Gregory E Crawford
- Center for Genomic and Computational Biology, Duke University Medical Center, Durham, NC, 27708, USA
- Division of Medical Genetics, Department of Pediatrics, Duke University Medical Center, Durham, NC, 27708, USA
- Center for Advanced Genomic Technologies, Duke University Medical Center, Durham, NC, 27708, USA
| | - Allison E Ashley-Koch
- Duke Molecular Physiology Institute, Duke University Medical Center, Durham, NC, 27701, USA
- Department of Medicine, Duke University Medical Center, Durham, NC, 27708, USA
| | - Geidy E Serrano
- Banner Sun Health Research Institute, Sun City, AZ, 85351, USA
| | - Thomas G Beach
- Banner Sun Health Research Institute, Sun City, AZ, 85351, USA
| | - Michael W Lutz
- Division of Translational Brain Sciences, Department of Neurology, Duke University School of Medicine, Duke University Medical Center, Durham, NC, 27710, USA
| | - Ornit Chiba-Falek
- Division of Translational Brain Sciences, Department of Neurology, Duke University School of Medicine, Duke University Medical Center, Durham, NC, 27710, USA.
- Center for Genomic and Computational Biology, Duke University Medical Center, Durham, NC, 27708, USA.
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Mistri SK, Hilton BM, Horrigan KJ, Andretta ES, Savard R, Dienz O, Hampel KJ, Gerrard DL, Rose JT, Sidiropoulos N, Majumdar D, Boyson JE. SLAM/SAP signaling regulates discrete γδ T cell developmental checkpoints and shapes the innate-like γδ TCR repertoire. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.01.10.575073. [PMID: 38260519 PMCID: PMC10802474 DOI: 10.1101/2024.01.10.575073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Abstract
During thymic development, most γδ T cells acquire innate-like characteristics that are critical for their function in tumor surveillance, infectious disease, and tissue repair. The mechanisms, however, that regulate γδ T cell developmental programming remain unclear. Recently, we demonstrated that the SLAM-SAP signaling pathway regulates the development and function of multiple innate-like γδ T cell subsets. Here, we used a single-cell proteogenomics approach to identify SAP-dependent developmental checkpoints and to define the SAP-dependent γδ TCR repertoire. SAP deficiency resulted in both a significant loss of an immature Gzma + Blk + Etv5 + Tox2 + γδT17 precursor population, and a significant increase in Cd4 + Cd8+ Rorc + Ptcra + Rag1 + thymic γδ T cells. SAP-dependent diversion of embryonic day 17 thymic γδ T cell clonotypes into the αβ T cell developmental pathway was associated with a decreased frequency of mature clonotypes in neonatal thymus, and an altered γδ TCR repertoire in the periphery. Finally, we identify TRGV4/TRAV13-4(DV7)-expressing T cells as a novel, SAP-dependent Vγ4 γδT1 subset. Together, the data suggest that SAP-dependent γδ/αβ T cell lineage commitment regulates γδ T cell developmental programming and shapes the γδ TCR repertoire.
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Affiliation(s)
- Somen K Mistri
- Department of Surgery, Larner College of Medicine, University of Vermont, Burlington, Vermont 05405, USA
| | - Brianna M. Hilton
- Department of Surgery, Larner College of Medicine, University of Vermont, Burlington, Vermont 05405, USA
| | - Katherine J. Horrigan
- Department of Surgery, Larner College of Medicine, University of Vermont, Burlington, Vermont 05405, USA
| | - Emma S. Andretta
- Department of Surgery, Larner College of Medicine, University of Vermont, Burlington, Vermont 05405, USA
| | - Remi Savard
- Department of Surgery, Larner College of Medicine, University of Vermont, Burlington, Vermont 05405, USA
| | - Oliver Dienz
- Department of Surgery, Larner College of Medicine, University of Vermont, Burlington, Vermont 05405, USA
| | - Kenneth J Hampel
- Department of Pathology and Laboratory Medicine, Larner College of Medicine, University of Vermont Medical Center, Burlington, Vermont 05405, USA
| | - Diana L. Gerrard
- Department of Pathology and Laboratory Medicine, Larner College of Medicine, University of Vermont Medical Center, Burlington, Vermont 05405, USA
| | - Joshua T. Rose
- Department of Pathology and Laboratory Medicine, Larner College of Medicine, University of Vermont Medical Center, Burlington, Vermont 05405, USA
| | - Nikoletta Sidiropoulos
- Department of Pathology and Laboratory Medicine, Larner College of Medicine, University of Vermont Medical Center, Burlington, Vermont 05405, USA
| | - Devdoot Majumdar
- Department of Surgery, Larner College of Medicine, University of Vermont, Burlington, Vermont 05405, USA
| | - Jonathan E. Boyson
- Department of Surgery, Larner College of Medicine, University of Vermont, Burlington, Vermont 05405, USA
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