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Université de Fribourg

De novo expression of parvalbumin in ependymal cells in response to brain injury promotes ependymal remodeling and wound repair

Szabolcsi, Viktória ; Celio, Marco R.

In: Glia, 2014, p. -

The calcium-binding protein parvalbumin (PV) hallmarks subpopulations of interneurons in the murine brain. We serendipitously observed the de novo expression of PV in ependymal cells of the lateral ventricle wall following in vivo lesioning and brain slicing for the preparation of organotypic hippocampal slice cultures (OHSCs). In OHSCs, de novo PV-expression begins shortly after the onset of...

Université de Fribourg

Acute endotoxemia in mice induces downregulation of megalin and cubilin in the kidney

Schreiber, Andrea ; Theilig, Franziska ; Schweda, Frank ; Höcherl, Klaus

In: Kidney International, 2012, p. -

Severe sepsis is often accompanied by acute renal failure with renal tubular dysfunction. Albuminuria is a common finding in septic patients and we studied whether it was due to an impairment of proximal tubular endocytosis of filtered albumin. We studied the regulation of megalin and cubilin, the two critical multiligand receptors responsible for albumin absorption, during severe experimental...

Université de Fribourg

JNK1 and IKKβ: molecular links between obesity and metabolic dysfunction

Solinas, Giovanni ; Karin, Michael

In: The FASEB Journal, 2010, p. -

Inflammation is thought to underlie the pathogenesis of many chronic diseases. It is now established that obesity results in a state of chronic low-grade inflammation thought to contribute to several metabolic disorders, including insulin resistance and pancreatic islet dysfunction. The protein kinases JNK1 and IKKβ have been found to serve as critical molecular links between obesity, metabolic...

Université de Fribourg

Endothelial-specific deletion of Connexin40 promotes atherosclerosis by increasing CD73-dependent leukocyte adhesion

Chadjichristos, C.E. ; Scheckenbach, K.E.L. ; Veen, T.A.B. van ; Richani Sarieddine, M.Z. ; Wit, C. de ; Yang, Zhihong ; Roth, I. ; Bacchetta, M. ; Viswambharan, Hema ; Foglia, B. ; Dudez, T. ; Kempen, M.J.A. van ; Coenjaerts, F.E.J. ; Miquerol, L. ; Deutsch, U. ; Jongsma, H.J. ; Chanson, M. ; Kwak, B.R.

In: Circulation, 2010, vol. 121, p. 123-131

Background— Endothelial dysfunction is the initiating event of atherosclerosis. The expression of connexin40 (Cx40), an endothelial gap junction protein, is decreased during atherogenesis. In the present report, we sought to determine whether Cx40 contributes to the development of the disease.Methods and Results— Mice with ubiquitous deletion of Cx40 are hypertensive, a risk factor for...