Identification of vasopressin-induced genes in AQP2-transfected MDCK cells by suppression subtractive hybridization.
Arginine vasopressin (AVP) plays a major role in the modulation of water reabsorption in mammalian kidney. In addition to short-term regulation of aquaporin 2 (AQP2) trafficking, AVP also has long-term effects to regulate the expression of AQP2 in renal collecting duct. However, the detailed mechanism of the long-term effects of AVP in kidney remains to be elucidated. We have searched for genes induced by AVP using the polymerase chain reaction-based suppression subtractive hybridization technique in AVP-responsive AQP2-transfected MDCK cells. We found that the expression of the genes such as VIP17/MAL, annexin II, stimulatory GTP binding protein, tubulin, and mitochondrial ATP synthase was induced by AVP treatment for 4h. These results suggest that AVP might induce the expression of several genes related to the apical targeting of newly synthesized AQP2 as well as that of AQP2 for the long-term modification of water permeability in renal collecting duct.
Kang
Do-Young
DY
Department of Nuclear Medicine, Dong-A University College of Medicine, Busan, Republic of Korea.
Park
Joo-In
JI
Cho
Woel-Soon
WS
Jeong
Min-Ho
MH
Cho
Gwang-Woo
GW
Park
Hwan-Tae
HT
Bae
Hae-Rahn
HR
D000818:Animals; D051399:Aquaporin 2; D020346:Aquaporins / Q000235:genetics / Q000378:metabolism*; D001127:Arginine Vasopressin / Q000494:pharmacology*; D002460:Cell Line; D004285:Dogs; D005786:Gene Expression Regulation; D007685:Kidney Tubules, Collecting / Q000166:cytology / Q000378:metabolism*; D009693:Nucleic Acid Hybridization; D016133:Polymerase Chain Reaction; D014162:Transfection; D015854:Up-Regulation
D051399:Aquaporin 2; D020346:Aquaporins; D001127:Arginine Vasopressin