25 research outputs found
Enhanced therapeutic effects of MSC-derived extracellular vesicles with an injectable collagen matrix for experimental acute kidney injury treatment
CXCL12 and MYC control energy metabolism to support adaptive responses after kidney injury
Kidney injury is a common complication of severe disease. Here, we report that injuries of the zebrafish embryonal kidney are rapidly repaired by a migratory response in 2-, but not in 1-day-old embryos. Gene expression profiles between these two developmental stages identify cxcl12a and myca as candidates involved in the repair process. Zebrafish embryos with cxcl12a, cxcr4b, or myca deficiency display repair abnormalities, confirming their role in response to injury. In mice with a kidney-specific knockout, Cxcl12 and Myc gene deletions suppress mitochondrial metabolism and glycolysis, and delay the recovery after ischemia/reperfusion injury. Probing these observations in zebrafish reveal that inhibition of glycolysis slows fast migrating cells and delays the repair after injury, but does not affect the slow cell movements during kidney development. Our findings demonstrate that Cxcl12 and Myc facilitate glycolysis to promote fast migratory responses during development and repair, and potentially also during tumor invasion and metastasis
Bone mesenchymal stem cells ameliorate ischemia/reperfusion-induced damage in renal epithelial cells via microRNA-223
A combination of ultrasound-targeted microbubble destruction with transplantation of bone marrow mesenchymal stem cells promotes recovery of acute liver injury
Role of mesenchymal stem cells and their culture medium in alleviating kidney injury in rats diabetic nephropathy
CXCL12 and MYC control energy metabolism to support adaptive responses after kidney injury
Ex vivo evaluation of intravitreal mesenchymal stromal cell viability using bioluminescence imaging
Stromal cells in tissue homeostasis: balancing regeneration and fibrosis
The ageing population and the increasing prevalence of noncommunicable diseases such as diabetes and hypertension have led to an increased prevalence of chronic kidney disease. The generation of de novo kidney tissue from embryonic tissue and stem cells using tissue engineering approaches is being explored as an alternative to renal replacement therapy for treating the disease. It is, however, becoming clear that resident cells can not only induce fibrotic repair, but can also restore damaged kidney tissue. Mobilizing this innate capacity of the kidney to regenerate is of particular interest in the prevention of irreversible kidney failure. A novel concept is that the interaction of interstitial stromal cells with the local immune system may regulate tissue homeostasis and the balance between tissue repair and fibrosis. Mesenchymal stromal cells (MSCs), in particular, may enhance the intrinsic reparative capabilities of the kidney. This Perspectives article considers the innate regenerative potential of the kidney in the context of ongoing studies of MSC therapy