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Transcriptional programs of lymphoid tissue capillary and high endothelium reveal control mechanisms for lymphocyte homing

ABSTRACT: This file contains gene microarray data from FACS purified mouse high endothelial cells and capillary endothelial cells from peripheral lymph nodes, mesenteric lymph nodes, and Peyer’s patches. The data will allow for better understanding of the specialization of high endothelial venules (HEV) and their role in lymphocyte recruitment from the blood; the tissue-specific differentiation of lymphoid tissue vasculature; and the specialized features of capillary vs. post-capillary endothelium, including differences in signaling pathways, adhesive properties and mechanisms of hemostasis. We analyzed transcript expression data from vascular endothelial subsets from BALB/c mouse lymphoid tissue.

ORGANISM(S): Mus musculus

SUBMITTER: Eugene Butcher

PROVIDER: E-GEOD-58056 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Transcriptional programs of lymphoid tissue capillary and high endothelium reveal control mechanisms for lymphocyte homing.

Lee Mike M Kiefel Helena H LaJevic Melissa D MD Macauley Matthew S MS Kawashima Hiroto H O'Hara Edward E Pan Junliang J Paulson James C JC Butcher Eugene C EC

Nature immunology 20140831 10

Lymphocytes are recruited from blood by high-endothelial venules (HEVs). We performed transcriptomic analyses and identified molecular signatures that distinguish HEVs from capillary endothelium and that define tissue-specific HEV specialization. Capillaries expressed gene programs for vascular development. HEV-expressed genes showed enrichment for genes encoding molecules involved in immunological defense and lymphocyte migration. We identify capillary and HEV markers and candidate mechanisms f ...[more]

PMID: 25173345

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Transcriptional programs of lymphoid tissue capillary and high endothelium reveal control mechanisms for lymphocyte homing

Project description:This file contains gene microarray data from FACS purified mouse high endothelial cells and capillary endothelial cells from peripheral lymph nodes, mesenteric lymph nodes, and Peyer’s patches. The data will allow for better understanding of the specialization of high endothelial venules (HEV) and their role in lymphocyte recruitment from the blood; the tissue-specific differentiation of lymphoid tissue vasculature; and the specialized features of capillary vs. post-capillary endothelium, including differences in signaling pathways, adhesive properties and mechanisms of hemostasis.

2014-08-31 | GSE58056 | GEO

Characterization with age of resident T cells within secondary lymphoid organs in the steady state

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2017-12-01 | GSE104011 | GEO

Single cell RNA-sequencing of Tumor-Associated High Endothelial Cells (TA-HECs) and comparison to their counterparts in homeostatic and inflamed mouse lymph nodes

Project description:High endothelial venules (HEVs) are specialized postcapillary venules that mediate lymphocyte trafficking from the blood into lymph nodes. HEV-like blood vessels are found in solid tumors in association with CD8+ T cell infiltration.This study uses single cell RNA-sequencing using the Fluidigm C1 system as a method to evaluate the transcriptome in lymph node and tumor-associated HEV endothelial cells (LN-HECs and TA-HECs). We isolated MECA-79+ TA-HECs and CD31+MECA-79- tumor-associated endothelial cells (TA-ECs) by cell sorting and we compared their transcriptome to those of their counterparts in homeostatic (LN-HECs and LN-ECs) or inflamed (iLN-HECs) lymph nodes. TA-HECs express high levels of endothelial cell markers Cdh5 and Pecam1 (CD31), post-capillary venule marker Ackr1 (DARC) and venous transcription factor Nr2f2, indicating that they correspond to post-capillary venule endothelium, like their lymph node counterparts. The genes encoding HEV sialomucins decorated by the sulfated MECA-79 epitope (CD34 and Emcn, endomucin) and the core 1 branching enzyme B3gnt3 that is essential for its biosynthesis, are equally expressed in all HEC populations, whereas sulfotransferases Chst2 and Chst4 are expressed at lower levels in TA-HECs. Although TA-HECs are molecularly distinct from lymph node HECs, they share several important characteristics with iLN-HECs, including the upregulation of endothelial selectins (Selp, Sele) and inflammatory chemokines CXCL9 and CXCL10, the ligands for chemokine receptor CXCR3 on effector T cells. Finally, endothelial cell adhesion molecules ICAM1, ICAM2 and VCAM1 that are important for lymphocyte sticking to HEVs, are expressed at similar levels in all HECs. Together, these findings indicated that MECA-79+ TA-HECs, similar to HECs in immune-stimulated lymph nodes, exhibit an inflamed phenotype characterized by co-expression of MECA-79+ antigens with endothelial selectins and inflammatory chemokines.

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