Role of cholesterol in the regulation of renal phosphate transport.
نویسندگان
چکیده
The kidney plays a critical role in the regulation of inorganic phosphate (Pi) homeostasis through changes in the proximal tubular apical membrane Na-dependent Pi (Na/Pi) transport activity. In response to alterations in dietary Pi intake and during the aging process, changes in renal Na/Pi transport activity are inversely correlated with apical membrane cholesterol content. Cholesterol regulates Na/Pi transport activity by fluidity-dependent and fluidity-independent mechanisms, including regulation of Na/Pi protein transcription, synthesis, and trafficking to and from the plasma membrane.
منابع مشابه
Defective PTH regulation of sodium-dependent phosphate transport in NHERF-1-/- renal proximal tubule cells and wild-type cells adapted to low-phosphate media.
The present experiments using primary cultures from renal proximal tubule cells examine two aspects of the regulation of sodium-dependent phosphate transport and membrane sodium-dependent phosphate transporter (Npt2a) expression by parathyroid hormone (PTH). Sodium-dependent phosphate transport in proximal tubule cells from wild-type mice grown in normal-phosphate media averaged 4.4 +/- 0.5 nmo...
متن کاملCharacterization of Phosphate Membrane Transport in Saccharomyces cerevisiae CEN.PK113-5D under Low-Phosphate Conditions Using Aerobic Continuous Culture
Two different growth media, namely complex and defined media, were used to examine establishment of steady-state conditions in phosphate-limited culture system of Saccharomyces cerevisiae CEN.PK113-5D strain. Using the defined growth medium, it was possible to obtain steady state condition in the continuous culture. The effect of phosphate concentration on the growth of S. cerevisiae in pho...
متن کاملAdenoviral expression of NHERF-1 in NHERF-1 null mouse renal proximal tubule cells restores Npt2a regulation by low phosphate media and parathyroid hormone.
Sodium-dependent phosphate transport in NHERF-1(-/-) proximal tubule cells does not increase when grown in a low phosphate media and is resistant to the normal inhibitory effects of parathyroid hormone (PTH). The current experiments employ adenovirus-mediated gene transfer in primary cultures of mouse proximal tubule cells from NHERF-1 null mice to explore the specific role of NHERF-1 on regula...
متن کاملReview of Metabolism, Transport and Role of Serotonin in the Body and the Relation between Serotonin and Diseases
Serotonin (5-hydroxytriptamine), one of the most important neurotransmitters, is synthesized from amino acid L-tryptophan in some neurons located in the central nervous system and intestine enterochromaffin cells . The role of this neurotransmitter is important and involves control of sexual behaviors, morality, sleep, pain, appetite, aggression, cardiovascular function and regulation of gut fu...
متن کاملBreviscapine prevents downregulation of renal water and sodium transport proteins in response to unilateral ureteral obstruction
Objective(s):Our recent report indicates that breviscapine play a protective role of the kidney by down-regulating transforming growth factor-β1(TGF-β1), α-smooth muscle actin (α-SMA) and alleviating interstitial fibrosis following unilateral ureteral obstruction (UUO). In this study, we investigate the effect of breviscapine on changes of renal water and sodium transport proteins in response t...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Frontiers in bioscience : a journal and virtual library
دوره 2 شماره
صفحات -
تاریخ انتشار 1997