Marie Essig1, Gérard Friedlander. 1. INSERM U 426 and Department of Psychology, Xavier Bichat Faculty of Medicine, Denis Diderot University, Paris, France. essig@bichat.inserm.fr
Abstract
PURPOSE OF REVIEW: Phenotypic alterations resulting from flow-induced mechanical strains is a growing field of research in many cell types such as vascular endothelial and smooth muscle cells, chondrocytes or osteocytes. Although it has been acknowledged for several decades that tubular flow is a main determinant of tubular behavior in terms of vectorial transport of water and solutes, the effect of flow on other characteristics of proximal tubular cell phenotype was ignored until recently. The purpose of the review is to summarize the various effects of shear-stress, recently demonstrated in renal proximal cells. RECENT FINDINGS: New results demonstrate that tubular flow has pleiotropic effects on proximal tubular cells, affecting, in vitro and in vivo, the organization of the cytoskeleton, the synthesis of extracellular matrix proteases and the activity of specific transcription factors. SUMMARY: These results suggest that flow-induced mechanical strains could be one determinant of tubulointerstitial lesions during the progression of renal diseases.
PURPOSE OF REVIEW: Phenotypic alterations resulting from flow-induced mechanical strains is a growing field of research in many cell types such as vascular endothelial and smooth muscle cells, chondrocytes or osteocytes. Although it has been acknowledged for several decades that tubular flow is a main determinant of tubular behavior in terms of vectorial transport of water and solutes, the effect of flow on other characteristics of proximal tubular cell phenotype was ignored until recently. The purpose of the review is to summarize the various effects of shear-stress, recently demonstrated in renal proximal cells. RECENT FINDINGS: New results demonstrate that tubular flow has pleiotropic effects on proximal tubular cells, affecting, in vitro and in vivo, the organization of the cytoskeleton, the synthesis of extracellular matrix proteases and the activity of specific transcription factors. SUMMARY: These results suggest that flow-induced mechanical strains could be one determinant of tubulointerstitial lesions during the progression of renal diseases.
Authors: Qidong Ren; Megan L Gliozzi; Natalie L Rittenhouse; Lia R Edmunds; Youssef Rbaibi; Joseph D Locker; Amanda C Poholek; Michael J Jurczak; Catherine J Baty; Ora A Weisz Journal: Traffic Date: 2019-05-09 Impact factor: 6.215
Authors: Keira Melican; Ruben M Sandoval; Abdul Kader; Lina Josefsson; George A Tanner; Bruce A Molitoris; Agneta Richter-Dahlfors Journal: PLoS Pathog Date: 2011-02-24 Impact factor: 6.823
Authors: Timothy G Hammond; Corey Nislow; Ivan C Christov; Vecihi Batuman; Pranay P Nagrani; Marjan Barazandeh; Rohit Upadhyay; Guri Giaever; Patricia L Allen; Michael Armbruster; Allen Raymond; Holly H Birdsall Journal: Sci Rep Date: 2021-10-29 Impact factor: 4.996