Apelin-VEGF-C mRNA delivery as therapeutic for the treatment of secondary lymphedema
Ontology highlight
ABSTRACT:
INSTRUMENT(S): Illumina HiSeq X
ORGANISM(S): Homo sapiens
SUBMITTER: Draia-Nicolau Ondina
PROVIDER: E-MTAB-13381 | biostudies-arrayexpress |
REPOSITORIES: biostudies-arrayexpress
Similar Datasets
Project description:Lymphedema (LD) is characterized by the accumulation of protein-rich interstitial fluid, lipids and a significant inflammatory cell infiltrate in the limb. It causes a significant morbidity and is a common disabling disease affecting more than 150 million people worldwide, however there is no yet curative treatment. In this study, we found that LD tissues from patients exhibit inflamed gene expression profile compared to their normal arm. This was next confirmed by a lipidomic analysis that revealed severe decrease in arachidonic acid-derived lipid mediators generated by the 15-lipoxygenase (15-LO) in lymphedematous arms. Using a mouse model of lymphedema, we reproduced the etiology of the human pathology including the loss of specialized pro-resolving lipid mediators that play essential role in resolution of inflammation. This was associated with a lack of nonlymphoid PPAR-positive regulatory T cells (Treg) recruitment in the injured limb adipose tissue. Importantly, we identified the lymphatic endothelial 15-LO as responsible for the chemoattraction and survival of this Treg subpopulation. These results were confirmed by an aggravation of LD and degradation of the lymphatic network in an original transgenic mouse model in which ALOX15 gene has been selectively deleted in the lymphatic system (ALOX15lecKO). Importantly, this phenotype was rescued by the injection of ALOX15-expressing lentivectors. These results provide evidence that lymphatic 15-LO may represent a novel therapeutic target for LD by serving as a mediator of nonlymphoid Treg cell population invasion into lymphedematous adipose tissue to resolve inflammation. Experimental workflow: To broadly identify gene expression signatures associated to secondary LD, we performed bulk-RNA sequencing on dermolipectomy tissue samples from women who developed LD after breast cancer. Four patient biopsies (normal arm and LD arm in each patient) were studied and the differential expression analysis (DEseq) followed by a protein-coding RNA profiling.
2023-06-09 | E-MTAB-13019 | biostudies-arrayexpress
Project description:Fibrotic changes in the myocardium and cardiac arrhythmias represent fatal complications in rheumatic disease systemic sclerosis (SSc), however the underlying mechanisms remain elusive. Fos-related antigen-2 (Fosl-2) has been implicated in development of organ fibrosis. Mice overexpressing Fosl-2 (Fosl-2tg) showed interstitial cardiac fibrosis, disorganized connexin43/40 in intercalated discs and deregulated expression of genes controlling conduction system. Fosl-2tg mice developed higher heart rate (HR), prolonged QT intervals, arrhythmias with prevalence of premature ventricular contractions, ventricular tachycardias, II-degree atrio-ventricular blocks and reduced HR variability. Following stimulation with isoproterenol Fosl-2tg mice showed impaired HR response. To assess the role of inflammation in cardiac fibrosis we used Rag2-/-Fosl-2tg mice lacking T/B cells. These mice showed no myocardial fibrosis and ECG abnormalities. Transcriptomics analysis of cardiac Rag-2-/-Fosl-2wt/Rag2-/-Fosl-2tg/Fosl-2tg fibroblasts revealed that systemic inflammation triggered fibrotic and arrhythmogenic alterations while Fosl-2-overexpression mediated profibrotic signature. In human cardiac fibroblasts FOSL-2-overexpression enhanced myofibroblast signature under proinflammatory or profibrotic stimuli. These results demonstrate that under immunofibrotic conditions activator protein 1 transcription factor component Fosl-2 exaggerates myocardial fibrosis, arrhythmias and aberrant response to stress.
2022-10-27 | E-MTAB-12271 | biostudies-arrayexpress
Project description:We generated C57BL/6 mice lacking Bmp10 and/or Bmp9 utilizing the Cre-loxP system. Briefly, Bmp9 constitutive deletion resulted from the replacement of exon 2 by a neomycin resistance cassette. Because Bmp10 deletion leads to early embryonic lethality, we used the tamoxifen-inducible Cre system to generate Bmp10-cKO mice (Rosa26-CreERT2;Bmp10lox/lox) by crossing Rosa26-CreERT2 mice with Bmp10lox/lox mice that possess loxP sites flanking exon 2. To generate double-KO (DKO) mice, we crossed these Rosa26-CreERT2;Bmp10lox/lox mice with Bmp9-KO mice. At the age of 8 weeks, mice were treated with tamoxifen (Sigma) by intraperitoneal injection once a day for 5 days at a dosage of 50 mg/kg. At the age of 5 months, Wild Type and DKO mouse lung tissue was flash frozen in liquid nitrogen and stored at -80°C. RNA extraction, RNA sample quality assessment, RNA library preparation, sequencing and raw data analysis were conducted at GENEWIZ, Inc. (South Plainfield, NJ, USA). Total RNA was extracted from frozen tissue using the Qiagen RNeasy Plus Mini kit. RNA samples were quantified using Qubit 2.0 Fluorometer (Life Technologies, Carlsbad, CA, USA) and RNA integrity was checked with Agilent TapeStation (Agilent Technologies, Palo Alto, CA, USA). rRNA depletion was performed using Ribozero rRNA Removal Kit (Illumina, San Diego, CA, USA). RNA sequencing library preparation used NEBNext Ultra RNA Library Prep Kit for Illumina by following the manufacturer’s recommendations (NEB, Ipswich, MA, USA). Briefly, enriched RNAs were fragmented for 15 minutes at 94 °C. First strand and second strand cDNA were subsequently synthesized. cDNA fragments were end repaired and adenylated at 3’ends, and universal adapter was ligated to cDNA fragments, followed by index addition and library enrichment with limited cycle PCR. Sequencing libraries were validated using the Agilent Tapestation 4200 (Agilent Technologies, Palo Alto, CA, USA), and quantified by using Qubit 2.0 Fluorometer (Invitrogen, Carlsbad, CA) as well as by quantitative PCR (Applied Biosystems, Carlsbad, CA, USA). The sequencing libraries were clustered on one lane of a flowcell. After clustering, the flowcell was loaded on the Illumina HiSeq 4000 instrument (or equivalent) according to manufacturer’s instructions. The samples were sequenced using a 2x150 Paired End (PE) configuration. Image analysis and base calling were conducted by the HiSeq Control Software (HCS). Raw sequence data (.bcl files) generated from Illumina HiSeq was converted into fastq files and de-multiplexed using Illumina's bcl2fastq 2.17 software. One mis-match was allowed for index sequence identification. After investigating the quality of the raw data, sequence reads were trimmed to remove possible adapter sequences and nucleotides with poor quality using Trimmomatic v.0.36. The trimmed reads were mapped to the the Mus musculus GRCm38 reference genome available on ENSEMBL using the STAR aligner v.2.5.2b. Gene counts were calculated from uniquely mapped reads using feature Counts from the Subread package v.1.5.2. Only unique reads that fell within exon regions were counted. The gene hit counts table was then used for downstream differential expression analysis. A differential gene expression analysis between WT and DKO groups of samples was performed using the R-package DESeq2 (Wald test).
2021-06-01 | E-MTAB-10392 | biostudies-arrayexpress
Project description:Mouse surgical model of acute lymphedema induction. We performed three sets of microarrays with three replicates each for a total of 9 arrays. Each array was run using pooled RNA from three animals. The three conditions were Normal tail skin (no intervention), Lymphedema tail skin(due to surgical lymphatic vessel blockage), and Surgical Sham control tail skin(surgical incision with no lymphatic vessel blockage). 15ug of test and reference (e17.5 mouse whole embryo) RNA was used for labeling. Set of arrays organized by shared biological context, such as organism, tumors types, processes, etc. Keywords: Logical Set
2006-03-04 | GSE4333 | GEO
Project description:The lymphatic system removes fluid from the interstitial space and returns it to the blood with a tremendous capacity: during inflammation, lymph flow rates can increase dramatically; however, during chronic lymphedema, there is little or no flow. The ability of lymphatic endothelium to sense and actively regulate this function is unknown, and shear stress is likely a key indicator of lymph flow. We profiled gene expression in human dermal microvascular lymphatic endothelial cells exposed to 0, 2 and 20 dyn/cm2 shear stress as representative of chronic lymphedema, normal, and acute inflammatory conditions, respectively. We found important adaptive responses correlated to multiple aspects of lymphatic function. Importantly, shear stress upregulated intracellular water and solute transporters while decreasing cell-cell adhesion and basement membrane components and increasing cell-matrix interactions. This data indicate that during high loading conditions, both passive and active drainage function increases, while conversely when fluid drainage is blocked, transport function is diminished in the lymphatic endothelium. These data demonstrate the first functional-adaptive response of lymphatic endothelium to flow conditions, thus indicating that the lymphatic endothelium plays an active role in regulating their function. Keywords: Shear stress, dose response, cell type comparison
2009-12-01 | GSE8852 | GEO
Project description:To observe the global changes in the lymphatic endothelial cells upon exposure to filarial antigens or parasites, LECs were stimulated for 24, 48, and 72hrs and the expression profiles were carried out. Human filarial parasites Brugia malayi and Wuchereria bancrofti habitat the lymphatics and cause lymphatic dilatation and lymphedema. In order to evaluate the effect of various stage specific effects on the lymphatic endothelial cells (LEC) and understand how they modulate the lymphatic dysfunction, LECs were stimulated in antigens derived from the Brugia malayi. These are preliminary time course data towards understanding how the filarial antigens induce lymphangiogenesis.
2010-05-19 | E-GEOD-15454 | biostudies-arrayexpress
Project description:We did three sets of microarrays with three replicates each for a total of 9 arrays. Each array was run using pooled RNA from three animals. The three conditions were Normal tail skin (no intervention), Lymphedema tail skin(due to surgical lymphatic vessel blockage), and Surgical Sham control tail skin(surgical incision with no lymphatic vessel blockage). 15ug of test and reference (e17.5 mouse whole embryo) RNA was used for labeling.
2006-06-06 | E-SMDB-3634 | biostudies-arrayexpress
Project description:The lymphatic system removes fluid from the interstitial space and returns it to the blood with a tremendous capacity: during inflammation, lymph flow rates can increase dramatically; however, during chronic lymphedema, there is little or no flow. The ability of lymphatic endothelium to sense and actively regulate this function is unknown, and shear stress is likely a key indicator of lymph flow. We profiled gene expression in human dermal microvascular lymphatic endothelial cells exposed to 0, 2 and 20 dyn/cm2 shear stress as representative of chronic lymphedema, normal, and acute inflammatory conditions, respectively. We found important adaptive responses correlated to multiple aspects of lymphatic function. Importantly, shear stress upregulated intracellular water and solute transporters while decreasing cell-cell adhesion and basement membrane components and increasing cell-matrix interactions. This data indicate that during high loading conditions, both passive and active drainage function increases, while conversely when fluid drainage is blocked, transport function is diminished in the lymphatic endothelium. These data demonstrate the first functional-adaptive response of lymphatic endothelium to flow conditions, thus indicating that the lymphatic endothelium plays an active role in regulating their function. Keywords: Shear stress, dose response, cell type comparison Lymphatic endothelial cells were subjected to 0, 2, or 20 dyn/cm2 shear stress; blood endothelial cells were subjected to 0 or 20 dyn/cm2 shear stress. Four samples were used for each cell type/shear level group for a total of 20 samples. Each sample was independently compared to human universal reference RNA via two-color microarray analysis for a total of 20 arrays. In all cases, the experimental samples were labeled with Cy5 dye while the reference RNA was labeled with Cy3.
2009-11-30 | E-GEOD-8852 | biostudies-arrayexpress
Project description:Lymphatic vessel growth and activation, mediated by vascular endothelial growth factor- (VEGF)-C and/or VEGF-A, play an important role in metastatic cancer spread and in chronic inflammation. We aimed to comprehensively identify downstream molecular targets induced by VEGF-A or VEGF-C in lymphatic endothelium. To this end, we treated human dermal lymphatic endothelial cells (LEC) with VEGF-A or VEGF-C for up to 24 hours, followed by a time-series transcriptional profiling using gene microarray technology. We identified a number of genes - many of them not previously known to be involved in lymphangiogenesis - that clustered either as early response genes, transiently induced genes or progressively induced genes. Endothelial specific molecule-1 (ESM-1) was one of the genes that were most potently induced by both VEGF-A and VEGF-C. Keywords: Time course, growth factor comparison
2008-07-25 | GSE11228 | GEO
Project description:Millions of patients suffer from lymphedema worldwide. Supporting the contractility of lymphatic collectors is an attractive target for pharmacological therapy of lymphedema. However, lymphatics have mostly been studied in animals, while the cellular and molecular characteristics of human lymphatic collectors are largely unknown. We studied epifascial lymphatic collectors of the thigh, which were isolated for autologous transplantations. Our immunohistological studies identify additional markers for LECs (vimentin, CCBE-1). We show and confirm differences between initial and collecting lymphatics concerning the markers ESAM1, D2-40 and LYVE-1. Our transmission electron microscopic studies reveal two types of smooth muscle cells (SMCs) in the media of the collectors with dark and light cytoplasm. We observed vasa vasorum in the media of the largest collectors, as well as interstitial Cajal-like cells, which are highly ramified cells with long processes, caveolae, and lacking a basal lamina. They are in close contact with SMCs, which possess multiple caveolae at the contact sites. Immunohistologically we identified such cells with antibodies against vimentin and PDGFRα, but not CD34 and cKIT. With Next Generation Sequencing we searched for highly expressed genes in the media of lymphatic collectors, and found therapeutic targets, suitable for acceleration of lymphatic contractility, such as neuropeptide Y receptors 1, and 5; tachykinin receptors 1, and 2; purinergic receptors P2RX1, and 6, P2RY12, 13, and 14; 5-hydroxytryptamine receptors HTR2B, and 3C; and adrenoceptors α2A,B,C. Our studies represent the first comprehensive characterization of human epifascial lymphatic collectors, as a prerequisite for diagnosis and therapy.
2017-02-09 | GSE87360 | GEO