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Novel Targets for Diabetic Foot Ulcer Healing: A Transcriptomic Analysis by Negative Pressure Wound Therapy

ABSTRACT: Novel Targets for Diabetic Foot Ulcer Healing: A Transcriptomic Analysis by Negative Pressure Wound Therapy

PROVIDER: PRJNA1139226 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR29935626_1.fastq.gz	Fastqsanger.gz
	SRR29935626_2.fastq.gz	Fastqsanger.gz
	SRR29935627_1.fastq.gz	Fastqsanger.gz
	SRR29935627_2.fastq.gz	Fastqsanger.gz
	SRR29935628_1.fastq.gz	Fastqsanger.gz

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Gene expression profile as single cell level of chronic diabetic foot ulcers and chronic non-diabetic foot ulcer

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Transcriptome analysis in the Treatment of Diabetic Foot Ulcer Healing by Tibial Cortex Transverse Distraction

Project description:To investigate mRNA Expression profile and associated signaling pathways in the treatment of diabetic foot ulcer healing by tibial cortex transverse distraction. Methods: Tissue samples were collected from the wound edge before and after the surgery. After reference genome transcriptome sequencing and subsequent bioinformatics analysis, the differentially expressed genes and related pathways were explored, and functional analysis of important genes and pathways was conducted.

2024-10-30 | GSE271701 | GEO

Novel Targets for Diabetic Foot Ulcer Healing: A Transcriptomic Analysis by Negative Pressure Wound Therapy

Project description:The results of the present study provide new insights into the mechanism through which NPWT promotes DFU wound healing

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Changes of Granulation Tissue Protein Mass Spectrometry in Foot Wound of Diabetes Mellitus after Negative Pressure wound therapy

Project description:Before and after negative pressure treatment in 3 diabetic foot patients, the granulation tissue of foot ulcer was sampled and analyzed quantitatively by LC-MS /MS method.

2020-08-17 | PXD020929 |

Transcriptional programming of human epidermis during wound repair and in pressure ulcer at single-cell resolution

Project description:Pressure ulcer (PU) is a chronic non-healing wound caused by continuous pressure of the bodyweight to the skin, which is often seen in spinal cord injury patients and in the bedridden elderly population. In spite of high mortality, the pathophysiology of PU remains poorly understood. We performed single-cell transcriptomic analysis of epidermal cells from PU wound-edges, and compared them with epidermal cells from the intact skin and normal acute wounds (AW) of healthy donors. We identified four keratinocyte clusters, one melanocyte cluster, and one immune cell cluster, and the cellular heterogeneity and gene expression were altered in PU. Our findings provided a high-resolution map of human PU and AW, which are likely to yield new areas for exploration of the pathophysiology of chronic wounds and development of wound therapy.

2021-03-28 | GSE137897 | GEO

The Role of Fibroblasts in Diabetic Ulcer Healing and the Therapeutic Potential of Platelet-Rich Plasma (PRP): Insights from Single-Cell Sequencing and Animal Models

Project description:Objective: This study aims to investigate the diversity of fibroblasts present in diabetic ulcers and their impact on the wound healing process, as well as to evaluate the effectiveness of Platelet-Rich Plasma (PRP) therapy in the management of diabetic ulcers. Methodology: The single-cell dataset GSE165816 from the GEO database was utilized to analyze DFU-healer and DFU-nonhealer samples in order to evaluate variations in fibroblasts. Functional characteristics of fibroblasts were investigated through analyses of cell communication, transcription factors, and pseudotime analysis. Additionally, a diabetic ulcer rat model was established to compare the therapeutic effects of PRP, followed by histological and transcriptomic sequencing analyses. Result: Single-cell sequencing analysis identified a greater abundance of fibroblasts in the group of diabetic foot ulcer (DFU) patients who exhibited healing. The findings from biological informatics analysis emphasized the critical role of fibroblasts in the wound healing process. Treatment with PRP notably enhanced wound healing in diabetic ulcers in rats, and transcriptomic analysis indicated that gene expression levels post-PRP treatment resembled those of the non-diabetic ulcer group, with a strong association to fibroblasts. Conclusion: Fibroblasts are essential in the process of healing diabetic ulcers, as certain transcription factors have the potential to facilitate wound closure. PRP therapy has been shown to enhance the healing process in diabetic ulcer rat models, possibly through the modulation of gene expression and the promotion of extracellular matrix arrangement. This research offers novel insights and potential therapeutic approaches for managing diabetic ulcers.

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Spatial transcriptomics of healing and non-healing diabetic foot ulcers

Project description:Diabetic foot ulcers (DFUs) are a devastating complication of diabetes. To better understand the molecular mechanisms and cell types implicated in DFU healing, we used NanoString’s GeoMx Digital Spatial profiling platform on DFU tissue sections and compared gene expression of areas within the same ulcer as well as between patients who in 12 weeks following surgery healed their DFU (Healers, N=2) vs those who did not (Non-Healers, N=2).

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SFRP2 modulates functional phenotype transition and energy metabolism of macrophages during diabetic wound healing [Skin wound]

Project description:Diabetic foot ulcer (DFU) is a serious complication of diabetes mellitus, which causes great health damage and economic burden to patients. The pathogenesis of DFU is not fully understood.We screened wound healing-related genes using bioinformatics analysis, and full-thickness skin injury mice model and cellular assays were used to explore the role of target genes in diabetic wound healing. SFRP2 was identified as a wound healing-related gene, and the expression of SFRP2 is associated with immune cell infiltration in DFU. In vivo study showed that suppression of SFRP2 delayed the wound healing process of diabetic mice, impeded angiogenesis and matrix remodeling, and increased macrophage infiltration in wound tissues. In addition, suppression of SFRP2 enhanced M1 polarization in both the early and later stage of wound healing, and decreased M2 polarization in the later stage, which impeded the transition of M1 to M2 polarization of wound healing. Moreover, suppression of SFRP2 affected the transcriptome signatures-related to inflammatory response and energy metabolism at the early stage of wound healing. Extracellular flux analysis (EFA) showed that suppression of SFRP2 decreased mitochondrial energy metabolism and increased glycolysis in injury-related macrophages. Furthermore, suppression of SFRP2 inhibited transcriptome signaturesrelated to carbohydrate metabolism, lipid metabolism and amino acid metabolism, which consists the three main components of energy metabolism of macrophages. In conclusions, SFRP2 may function as a wound healing-related gene in DFU, and suppression of SFRP2 impaired diabetic wound healing by compromising the M1-to-M2 transition of macrophages and modulating the balance between mitochondrial energy metabolism and glycolysis.

2024-10-04 | GSE268760 | GEO

SFRP2 modulates functional phenotype transition and energy metabolism of macrophages during diabetic wound healing [RAW264.7 cells]

2024-10-04 | GSE268759 | GEO