Angiotensin II-mediated stimulation of phospholipase D in rabbit kidney proximal tubule cells

1994 ◽  
Vol 17 (6) ◽  
pp. 405-410
Author(s):  
Jin Ho Jung ◽  
Jee Chang Jung ◽  
Sung Hyun Chung
1995 ◽  
Vol 269 (1) ◽  
pp. F22-F30 ◽  
Author(s):  
I. Genestie ◽  
J. P. Morin ◽  
B. Vannier ◽  
G. Lorenzon

A high degree of functional polarity has been obtained in primary cultures of rabbit kidney proximal tubule cells grown on collagen IV-coated porous membranes. Tight confluency was attained 6 days after seeding and maintained for at least 6 more days, as shown by analysis of paracellular inulin diffusion. From day 6 onward, L-lactate, ammonia, and D-glucose concentration gradient and a pH difference of approximately 1 unit developed between the two nutrient medium compartments. Confluent monolayers expressed organic ion transport properties higher than those formerly reported for other cell models. Transcellular transport of 20 microM tetraethylammonium was directed from basal to apical compartment and was specifically inhibited by mepiperphenidol (1 mM). Unidirectional transport of 2.4 microM p-aminohippurate also occurred from basal to apical compartment, was saturable, and specifically inhibited by probenecid (1 mM). These results suggest that rabbit kidney proximal tubule cells, cultured under the experimental conditions described here, may be a useful model for the in vitro study of highly polarized renal transport processes.


1995 ◽  
Vol 165 (2) ◽  
pp. 313-322 ◽  
Author(s):  
D. Massey-Harroche ◽  
V. Traverso ◽  
N. Mayran ◽  
V. Francou ◽  
A. Vandewalle ◽  
...  

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