Similar Datasets
Project description:Brown adipose tissue can expend large amounts of energy, and therefore increasing its size or activity is a promising therapeutic approach to combat metabolic disease. In humans, major deposits of brown fat cells are found intimately associated with large blood vessels, corresponding to perivascular adipose tissue (PVAT). However, the cellular origins of PVAT are poorly understood. Here, we determine the identity of perivascular adipocyte progenitors in mice and humans. In mice, thoracic PVAT develops from a fibroblastic lineage, consisting of progenitor cells (Pdgfra+, Ly6a+ and Pparg-) and preadipocytes (Pdgfra+, Ly6a+ and Pparg+), which share transcriptional similarity with analogous cell types in white adipose tissue. Interestingly, the aortic adventitia of adult animals contains a population of adipogenic smooth muscle cells (Myh11+, Pdgfra- and Pparg+) that contribute to perivascular adipocyte formation. Similarly, human PVAT contains presumptive fibroblastic and smooth muscle-like adipocyte progenitor cells, as revealed by single-nucleus RNA sequencing. Together, these studies define distinct populations of progenitor cells for thermogenic PVAT, providing a foundation for developing strategies to augment brown fat activity.
| S-EPMC8136151 | biostudies-literature
Project description:Brown adipose tissue can expend large amounts of energy and thus increasing its amount or activity is a promising therapeutic approach to combat metabolic disease. In humans, major deposits of brown fat cells are found intimately associated with large blood vessels, corresponding to perivascular adipose tissue (PVAT). However, the cellular origins of PVAT are poorly understood. We applied single cell transcriptomic analyses, ex vivo adipogenesis assays, and genetic fate mapping to determine the identity of perivascular adipocyte progenitors. In mice, we found that thoracic PVAT develops from a fibroblastic lineage, consisting of progenitor cells (Pdgfra+; Ly6a+; Pparg-) and preadipocytes (Pdgfra+; Ly6a+; Pparg+). Progenitor and preadipocyte cells in PVAT shared transcriptional similarity with analogous cell types in white adipose tissue, pointing towards a conserved hierarchical structure of adipose lineage cells. Interestingly, the aortic adventitia of adult animals contained a novel population of adipogenic smooth muscle cells (SMCs) (Myh11+; Pdgfra-; Pparg+) that contributed to perivascular adipocyte formation. Similarly, human PVAT contained presumptive fibroblastic and SMC-like adipocyte progenitors, as revealed by single nucleus RNAseq. Taken together, these studies define distinct populations of progenitor cells for thermogenic PVAT, providing a foundation for developing strategies to augment brown fat activity.
2021-04-01 | GSE166355 | GEO
Project description:Brown adipose tissue can expend large amounts of energy and thus increasing its amount or activity is a promising therapeutic approach to combat metabolic disease. In humans, major deposits of brown fat cells are found intimately associated with large blood vessels, corresponding to perivascular adipose tissue (PVAT). However, the cellular origins of PVAT are poorly understood. We applied single cell transcriptomic analyses, ex vivo adipogenesis assays, and genetic fate mapping to determine the identity of perivascular adipocyte progenitors. In mice, we found that thoracic PVAT develops from a fibroblastic lineage, consisting of progenitor cells (Pdgfra+; Ly6a+; Pparg-) and preadipocytes (Pdgfra+; Ly6a+; Pparg+). Progenitor and preadipocyte cells in PVAT shared transcriptional similarity with analogous cell types in white adipose tissue, pointing towards a conserved hierarchical structure of adipose lineage cells. Interestingly, the aortic adventitia of adult animals contained a novel population of adipogenic smooth muscle cells (SMCs) (Myh11+; Pdgfra-; Pparg+) that contributed to perivascular adipocyte formation. Similarly, human PVAT contained presumptive fibroblastic and SMC-like adipocyte progenitors, as revealed by single nucleus RNAseq. Taken together, these studies define distinct populations of progenitor cells for thermogenic PVAT, providing a foundation for developing strategies to augment brown fat activity
2021-04-01 | GSE164526 | GEO
Project description:Brown adipose tissue can expend large amounts of energy and thus increasing its amount or activity is a promising therapeutic approach to combat metabolic disease. In humans, major deposits of brown fat cells are found intimately associated with large blood vessels, corresponding to perivascular adipose tissue (PVAT). However, the cellular origins of PVAT are poorly understood. We applied single cell transcriptomic analyses, ex vivo adipogenesis assays, and genetic fate mapping to determine the identity of perivascular adipocyte progenitors. In mice, we found that thoracic PVAT develops from a fibroblastic lineage, consisting of progenitor cells (Pdgfra+; Ly6a+; Pparg-) and preadipocytes (Pdgfra+; Ly6a+; Pparg+). Progenitor and preadipocyte cells in PVAT shared transcriptional similarity with analogous cell types in white adipose tissue, pointing towards a conserved hierarchical structure of adipose lineage cells. Interestingly, the aortic adventitia of adult animals contained a novel population of adipogenic smooth muscle cells (SMCs) (Myh11+; Pdgfra-; Pparg+) that contributed to perivascular adipocyte formation. Similarly, human PVAT contained presumptive fibroblastic and SMC-like adipocyte progenitors, as revealed by single nucleus RNAseq. Taken together, these studies define distinct populations of progenitor cells for thermogenic PVAT, providing a foundation for developing strategies to augment brown fat activity
2021-04-01 | GSE164525 | GEO
Project description:Brown adipose tissue can expend large amounts of energy and thus increasing its amount or activity is a promising therapeutic approach to combat metabolic disease. In humans, major deposits of brown fat cells are found intimately associated with large blood vessels, corresponding to perivascular adipose tissue (PVAT). However, the cellular origins of PVAT are poorly understood. We applied single cell transcriptomic analyses, ex vivo adipogenesis assays, and genetic fate mapping to determine the identity of perivascular adipocyte progenitors. In mice, we found that thoracic PVAT develops from a fibroblastic lineage, consisting of progenitor cells (Pdgfra+; Ly6a+; Pparg-) and preadipocytes (Pdgfra+; Ly6a+; Pparg+). Progenitor and preadipocyte cells in PVAT shared transcriptional similarity with analogous cell types in inguinal white adipose tissue (IWAT), pointing towards a conserved hierarchical structure of adipose lineage cells. Interestingly, the aortic adventitia of adult animals contained a novel population of adipogenic smooth muscle cells (SMCs) (Myh11+; Pdgfra-; Pparg+) that contributed to perivascular adipocyte formation. Similarly, human PVAT contained presumptive fibroblastic and SMC-like adipocyte progenitors, as revealed by single nucleus RNAseq. Taken together, these studies define distinct populations of progenitor cells for thermogenic PVAT, providing a foundation for developing strategies to augment brown fat activity
2021-04-01 | GSE164527 | GEO
Project description:Defining the lineage of thermogenic perivascular adipose tissue
| PRJNA691058 | ENA
Project description:This SuperSeries is composed of the SubSeries listed below.
2017-06-14 | GSE83928 | GEO
Project description:Defining the lineage of thermogenic perivascular adipose tissue [Adult Aorta]
| PRJNA691056 | ENA
Project description:Defining the lineage of thermogenic perivascular adipose tissue [Pup Aorta]
| PRJNA691061 | ENA
Project description:Defining the lineage of thermogenic perivascular adipose tissue [Thoracic PVAT]
| PRJNA700602 | ENA