» Articles » PMID: 11707576

Compartmentalized Autocrine Signaling to Cystic Fibrosis Transmembrane Conductance Regulator at the Apical Membrane of Airway Epithelial Cells

Overview
Specialty Science
Date 2001 Nov 15
PMID 11707576
Citations 88
Authors
Affiliations
Soon will be listed here.
Abstract

Physical stimulation of airway surfaces evokes liquid secretion, but the events that mediate this vital protective function are not understood. When cystic fibrosis transmembrane conductance regulator (CFTR) channel activity was used as a functional readout, we found signaling elements compartmentalized at both extracellular and intracellular surfaces of the apical cell membrane that activate apical Cl(-) conductance in Calu-3 cells. At the outer surface, ATP was released by physical stimuli, locally converted to adenosine, and sensed by A(2B) adenosine receptors. These receptors couple to G proteins, adenylyl cyclase, and protein kinase A, at the intracellular face of the apical membrane to activate colocalized CFTR. Thus, airways have evolved highly efficient mechanisms to "flush" noxious stimuli from airway surfaces by selective activation of apical membrane signal transduction and effector systems.

Citing Articles

SLC26A9 in airways and intestine: secretion or absorption?.

Kunzelmann K, Centeio R, Ousingsawat J, Talbi K, Seidler U, Schreiber R Channels (Austin). 2023; 17(1):2186434.

PMID: 36866602 PMC: 9988340. DOI: 10.1080/19336950.2023.2186434.


CFTR, Cell Junctions and the Cytoskeleton.

Pankonien I, Quaresma M, Rodrigues C, Amaral M Int J Mol Sci. 2022; 23(5).

PMID: 35269829 PMC: 8910340. DOI: 10.3390/ijms23052688.


Might Routine Vitamin A Monitoring in Cystic Fibrosis Patients Reduce Virus-Mediated Lung Pathology?.

Sealy R, Surman S, Vogel P, Hurwitz J Front Immunol. 2021; 12:704391.

PMID: 34858393 PMC: 8630690. DOI: 10.3389/fimmu.2021.704391.


Airway Epithelial Nucleotide Release Contributes to Mucociliary Clearance.

van Heusden C, Grubb B, Button B, Lazarowski E Life (Basel). 2021; 11(5).

PMID: 34064654 PMC: 8151306. DOI: 10.3390/life11050430.


Modulation of cAMP metabolism for CFTR potentiation in human airway epithelial cells.

Nguyen J, Bianca M, Huff R, Tiessen N, Inman M, Hirota J Sci Rep. 2021; 11(1):904.

PMID: 33441643 PMC: 7807051. DOI: 10.1038/s41598-020-79555-w.


References
1.
Rich T, Fagan K, Nakata H, Schaack J, Cooper D, Karpen J . Cyclic nucleotide-gated channels colocalize with adenylyl cyclase in regions of restricted cAMP diffusion. J Gen Physiol. 2000; 116(2):147-61. PMC: 2229499. DOI: 10.1085/jgp.116.2.147. View

2.
Musante L, Zegarra-Moran O, Montaldo P, Ponzoni M, Galietta L . Autocrine regulation of volume-sensitive anion channels in airway epithelial cells by adenosine. J Biol Chem. 1999; 274(17):11701-7. DOI: 10.1074/jbc.274.17.11701. View

3.
Grygorczyk R, Guyot A . Osmotic swelling-induced ATP release: a new role for tyrosine and Rho-kinases?. J Physiol. 2001; 532(Pt 3):582. PMC: 2278580. DOI: 10.1111/j.1469-7793.2001.0582e.x. View

4.
Shlatz L, SCHWARTZ I, Kinne-Saffran E, KINNE R . Distribution of parathyroid hormone-stimulated adenylate cyclase in plasma membranes of cells of the kidney cortex. J Membr Biol. 1975; 24(2):131-44. DOI: 10.1007/BF01868619. View

5.
KINNE R, Shlatz L, Kinne-Saffran E, SCHWARTZ I . Distribution of membrane-bound cyclic AMP-dependent protein kinase in plasma membranes of cells of the kidney cortex. J Membr Biol. 1975; 24(2):145-59. DOI: 10.1007/BF01868620. View