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MESC-derived donor cells in culture and 15 weeks after transplantation

ABSTRACT: mESC-derived donor cells in culture and 15 weeks after transplantation

PROVIDER: PRJNA827140 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR18770941.fastq.gz	Fastqsanger.gz
	SRR18770942.fastq.gz	Fastqsanger.gz
	SRR18770943.fastq.gz	Fastqsanger.gz
	SRR18770944.fastq.gz	Fastqsanger.gz
	SRR18770945.fastq.gz	Fastqsanger.gz

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mESC-derived donor cells in culture and 15 weeks after transplantation

Project description:The goal of this experiment was to compare the transcriptome of transplanted mouse ESC-derived cells and endogenous epithelial cells at 15 weeks post transplantation into a syngeneic wild type recipient. In addition these cells were compared to ESC-derived and primary mouse tip-like cells grown in culture, to determine how cultured cells changed followeing transplantation.

2023-08-24 | GSE200885 | GEO

Liver tissues of 12h after brain death donor liver transplantation and matched non-brain death donor liver transplantation.

Project description:To determine the circRNA expression profile in hepar tissues of 12h after brain death donor liver transplantation and matched non-brain death donor liver transplantation, we uesed circRNA microArray analysis form Arraystar to examine the expression of circRNAs and circRNAs in hepar tissues of 12h after brain death donor liver transplantation and matched non-brain death donor liver transplantation.

2020-04-10 | GSE119748 | GEO

Donor Macrophages Modulate Rejection after Heart Transplantation

Project description:Cellular rejection after heart transplantation imparts significant morbidity and mortality. Current immunosuppressive strategies are imperfect, target recipient T-cells, and have adverse effects. The innate immune response plays an essential role in the recruitment and activation of T-cells. Targeting the donor innate immune response would represent the earliest interventional opportunity within the immune response cascade. There is limited knowledge regarding donor immune cell types and functions in the setting of cardiac transplantation and no current therapeutics exist for targeting these cell populations. Distinct populations of donor and recipient macrophages co-exist within the transplanted heart. Donor CCR2+ macrophages are key mediators of allograft rejection and deletion of MYD88 signaling in donor macrophages is sufficient to suppress rejection and extend allograft survival. This highlights the therapeutic potential of donor heart-based interventions.

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Gene expression in donor kidney biopsies prior to kidney transplantation

Project description:Donor organ shortage, growing waiting lists and organ discard rates are key problems in kidney transplantation. Donor organ quality is a critical factor determining post-transplant graft outcomes. However, organ quality is difficult to predict. Balancing the use of marginal donors without affecting outcomes is a main issue in the transplant field. The decision of acceptance of a kidney organ for transplantation is mainly based on donor organ biopsy findings, even though there are recognized limitations. The lack of better measures of organ quality at the time of transplantation as a predictor of performance graft outcome is a serious clinical challenge. Herein, we propose the use of a limited set of genes that captures intrinsic biology of kidney donor organs to improve available scoring systems. We studied gene expression in 192 deceased donor kidney biopsies and evaluated short-term outcomes which included delayed graft function and eGFR (high versus low) at 24 months for 168 kidney transplant recipients.

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Donor Macrophages Modulate Rejection after Heart Transplantation

Project description:Donor Macrophages Modulate Rejection after Heart Transplantation

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LncRNA expression profile in hepar tissues of 12h after brain death or matched non-brain death donor liver transplantation

Project description:Brain death donor liver is an important organ source for liver transplantation.The liver injury after brain death donor liver transplantation is serious and the mechanism is unknown.In order to explore the role of lncRNAs and circRNAs expression profile and their biological functions in liver injury after brain death and liver transplantation, lncRNA and mRNA microarray expression profile were tested in the liver after brain death and normal liver transplantation.And this study lays a foundation for future studies on the potential role of lncRNAs in liver injury after brain death donor liver transplantation. To determine the LncRNA expression profile in hepar tissues of 12h after brain death donor liver transplantation and matched non-brain death donor liver transplantation, we uesed LncRNA microArray analysis form Arraystar to examine the expression of LncRNAs and circRNAs in hepar tissues of 12h after brain death donor liver transplantation and matched non-brain death donor liver transplantation.

2021-08-06 | GSE118182 | GEO

Liver tissues of 12h after brain death donor liver transplantation and matched non-brain death donor liver transplantation.

Project description:Liver tissues of 12h after brain death donor liver transplantation and matched non-brain death donor liver transplantation.

| PRJNA490174 | ENA

Macrophage infiltration induced by donor hypovolemia protects against severe primary graft dysfunction in mouse lung transplantation

Project description:BACKGROUND: Hypovolemia is common in lung donors before or after brain death. However, its impact on primary graft function (PGD) remains obscure. METHODS: A clinically relevant two-hit model of PGD was established by integrating hypovolemic shock (HS) and cold ischemia-reperfusion in a mouse model of orthotopic lung transplantation (LTx) from C57BL/6 to Balb/c. At -48 hours, HS was induced to donor by withdrawal of blood from femoral artery and keeping the mean arterial pressure at 15±5 mmHg for 4 h. At -24 hours, donor lungs were retrieved from mice with or without HS and stored at 0ºC until transplantation. CD11b-DTR mice were used as donor and treated with Diphtheria Toxin (DT) to deplete graft-infiltrating macrophages. RESULTS: HS mainly caused macrophage-predominant infiltration around pulmonary artery injury systemic inflammatory response, but little impairment of lung function even if in combination with cold ischemia-reperfusion. Transcriptional profiling showed HS pretreatment increased pulmonary damage and alveolar remodeling but ameliorated inflammatory infiltration when compared to one-hit model of 12 hours cold ischemia-reperfusion injury. The allografts with donor DT-treatment one day ahead of HS showed injury and dysfunction at donation and worsened further at 24 hours reperfusion, whereas the allografts with recipient DT-treatment immediately after transplantation showed similar function and histology to the control treated with saline. CONCLUSION: Donor hypovolemia causes pulmonary artery injury and infiltration but has little impact on allograft function, even in combination with 24 h cold ischemia. Graft-infiltrating macrophages are critical in protecting graft from HS-induced injury and cold ischemia-reperfusion injury.

2022-03-30 | GSE156322 | GEO

Living Donor Liver Transplantation With Two Stage Hepatectomy for Patients With Isolated, Irresectable Colorectal Liver Metastases

Project description:Nearly one third of patients with colorectal cancer develop liver metastases. It is well known that the achievement of a R0-situation is one of the most important factors for a positive long-term outcome. Despite further advantages in multimodal treatment concepts, only 20 - 30 % of the patients with metastases can be resected in curative intention. Recent studies, especially from Norway, have shown that liver transplantation might be a feasible option in well selected patients since the complete hepatectomy with subsequent liver transplantation can be an option for the achievement of a R0 situation. In this study, we pursue the strategy of two-stage hepatectomy combined with a left-lateral living donor liver transplantation. Inclusion criteria are as follows: non-resectable liver metastases of a primary colorectal carcinoma with an assumed portal-venous drainage of the tumor and at least a "stable disease" after a period of eight weeks systemic chemotherapy. Patients are excluded from the study if there is an extrahepatic tumor burden (with the exception of resectable lung metastases) or if the patient is not suitable for liver transplantation due to co-morbidities. The transplantation itself will be undertaken as a living donor liver transplantation where the left lateral liver lobe (liver segments 2 & 3) from a healthy volunteer donor will serve as graft. Prior transplantation, a left hemihepatectomy in the recipient is performed and the left lateral graft will be transplanted in this position. At the end of the transplantation procedure, the right portal vein will be closed to induce a rapid growth of the graft. The second step, and therefore the completion of the operation is performed after a growth period of the transplanted left-lateral lobe: in this procedure, the right hemi-liver of the recipient will be removed and the patient is supposed to be free of tumor at this point in time.

| 2270149 | ecrin-mdr-crc

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