Abstract:
:The microvascular endothelial cell monolayer localized at the critical interface between the blood and vessel wall has the vital functions of regulating tissue fluid balance and supplying the essential nutrients needed for the survival of the organism. The endothelial cell is an exquisite "sensor" that responds to diverse signals generated in the blood, subendothelium, and interacting cells. The endothelial cell is able to dynamically regulate its paracellular and transcellular pathways for transport of plasma proteins, solutes, and liquid. The semipermeable characteristic of the endothelium (which distinguishes it from the epithelium) is crucial for establishing the transendothelial protein gradient (the colloid osmotic gradient) required for tissue fluid homeostasis. Interendothelial junctions comprise a complex array of proteins in series with the extracellular matrix constituents and serve to limit the transport of albumin and other plasma proteins by the paracellular pathway. This pathway is highly regulated by the activation of specific extrinsic and intrinsic signaling pathways. Recent evidence has also highlighted the importance of the heretofore enigmatic transcellular pathway in mediating albumin transport via transcytosis. Caveolae, the vesicular carriers filled with receptor-bound and unbound free solutes, have been shown to shuttle between the vascular and extravascular spaces depositing their contents outside the cell. This review summarizes and analyzes the recent data from genetic, physiological, cellular, and morphological studies that have addressed the signaling mechanisms involved in the regulation of both the paracellular and transcellular transport pathways.
journal_name
Physiol Revjournal_title
Physiological reviewsauthors
Mehta D,Malik ABdoi
10.1152/physrev.00012.2005subject
Has Abstractpub_date
2006-01-01 00:00:00pages
279-367issue
1eissn
0031-9333issn
1522-1210pii
86/1/279journal_volume
86pub_type
杂志文章,评审abstract::The minK gene encodes a protein of 130 amino acids that has a single transmembrane segment and is expressed in many tissues including heart, uterus, and kidney. When Xenopus oocytes are injected with minK mRNA, a very slowly activating voltage-dependent potassium current is induced in these cells. The induced channels...
journal_title:Physiological reviews
pub_type: 杂志文章,评审
doi:10.1152/physrev.1997.77.3.627
更新日期:1997-07-01 00:00:00
abstract::The anterior pituitary gland has the ability to respond to complex signals derived from central and peripheral systems. Perception of these signals and their integration are mediated by cell interactions and cross-talk of multiple signaling transduction pathways and transcriptional regulatory networks that cooperate f...
journal_title:Physiological reviews
pub_type: 杂志文章,评审
doi:10.1152/physrev.00003.2011
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journal_title:Physiological reviews
pub_type: 杂志文章,评审
doi:10.1152/physrev.00040.2012
更新日期:2014-04-01 00:00:00
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journal_title:Physiological reviews
pub_type: 杂志文章,评审
doi:10.1152/physrev.2000.80.3.1021
更新日期:2000-07-01 00:00:00
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journal_title:Physiological reviews
pub_type: 杂志文章,评审
doi:10.1152/physrev.00030.2018
更新日期:2020-01-01 00:00:00
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journal_title:Physiological reviews
pub_type: 杂志文章,评审
doi:10.1152/physrev.00025.2003
更新日期:2004-04-01 00:00:00
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journal_title:Physiological reviews
pub_type: 杂志文章,评审
doi:10.1152/physrev.00019.2008
更新日期:2009-01-01 00:00:00
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journal_title:Physiological reviews
pub_type: 杂志文章,评审
doi:10.1152/physrev.00030.2006
更新日期:2007-07-01 00:00:00
abstract::Protein toxins such as ricin and Shiga toxin with intracellular targets have to be endocytosed and translocated to the cytosol to inhibit the protein synthesis and thereby kill the cell. Ricin is internalized by both clathrin-dependent and -independent endocytic mechanisms, whereas Shiga toxin seems to be taken up exc...
journal_title:Physiological reviews
pub_type: 杂志文章,评审
doi:10.1152/physrev.1996.76.4.949
更新日期:1996-10-01 00:00:00
abstract::Afferent signals that guide orienting movements converge in the deeper layers of the SC in a wide variety of animals. The sensory cells are arranged topographically according to their receptive-field locations and, thereby, form maps of sensory space. Maps of visual, somatosensory, and/or auditory space have been obta...
journal_title:Physiological reviews
pub_type: 杂志文章,评审
doi:10.1152/physrev.1986.66.1.118
更新日期:1986-01-01 00:00:00
abstract::The life history of fibroblast and fibroblast-like cells includes an initial stage of outgrowth and establishment in culture; a period of vigorous proliferation which has a variable length, depending on the tissue of origin, age of the donor, etc.; a period of declining proliferative vigor which includes substantial c...
journal_title:Physiological reviews
pub_type: 杂志文章,评审
doi:10.1152/physrev.1993.73.3.617
更新日期:1993-07-01 00:00:00
abstract::While transport processes for amino acids and glucose have long been known to be expressed in the luminal and abluminal membranes of the endothelium comprising the blood-brain and blood-retinal barriers, it is only within the last decades that endothelial and smooth muscle cells derived from peripheral vascular beds h...
journal_title:Physiological reviews
pub_type: 杂志文章,评审
doi:10.1152/physrev.00022.2002
更新日期:2003-01-01 00:00:00
abstract::Polymers of deoxyhemoglobin S deform sickle cell anemia red blood cells into sickle shapes, leading to the formation of dense, dehydrated red blood cells with a markedly shortened life-span. Nearly four decades of intense research in many laboratories has led to a mechanistic understanding of the complex events leadin...
journal_title:Physiological reviews
pub_type: 杂志文章,评审
doi:10.1152/physrev.00052.2003
更新日期:2005-01-01 00:00:00
abstract::The aim of this review is to provide basic information on the electrophysiological changes during acute ischemia and reperfusion from the level of ion channels up to the level of multicellular preparations. After an introduction, section II provides a general description of the ion channels and electrogenic transporte...
journal_title:Physiological reviews
pub_type: 杂志文章,评审
doi:10.1152/physrev.1999.79.3.917
更新日期:1999-07-01 00:00:00
abstract::The neuromuscular junction is the chemical synapse between motor neurons and skeletal muscle fibers. It is designed to reliably convert the action potential from the presynaptic motor neuron into the contraction of the postsynaptic muscle fiber. Diseases that affect the neuromuscular junction may cause failure of this...
journal_title:Physiological reviews
pub_type: 杂志文章,评审
doi:10.1152/physrev.00033.2014
更新日期:2015-07-01 00:00:00
abstract::The function and survival of all organisms is dependent on the dynamic control of energy metabolism, when energy demand is matched to energy supply. The AMP-activated protein kinase (AMPK) alphabetagamma heterotrimer has emerged as an important integrator of signals that control energy balance through the regulation o...
journal_title:Physiological reviews
pub_type: 杂志文章,评审
doi:10.1152/physrev.00011.2008
更新日期:2009-07-01 00:00:00
abstract::A careful review of several different organs shows that with the information available today the beginnings of the microlymphatics in the tissue consist of endothelialized tubes only. Lymphatic smooth muscle within the collecting lymphatics appears further downstream, in some organs only outside the parenchyma. This p...
journal_title:Physiological reviews
pub_type: 杂志文章,评审
doi:10.1152/physrev.1990.70.4.987
更新日期:1990-10-01 00:00:00
abstract::Zinc is involved in a variety of biological processes, as a structural, catalytic, and intracellular and intercellular signaling component. Thus zinc homeostasis is tightly controlled at the whole body, tissue, cellular, and subcellular levels by a number of proteins, with zinc transporters being particularly importan...
journal_title:Physiological reviews
pub_type: 杂志文章,评审
doi:10.1152/physrev.00035.2014
更新日期:2015-07-01 00:00:00
abstract::Vagal sensory neurons constitute the major afferent supply to the airways and lungs. Subsets of afferents are defined by their embryological origin, molecular profile, neurochemistry, functionality, and anatomical organization, and collectively these nerves are essential for the regulation of respiratory physiology an...
journal_title:Physiological reviews
pub_type: 杂志文章,评审
doi:10.1152/physrev.00039.2015
更新日期:2016-07-01 00:00:00
abstract::The Arp2/3 complex is an evolutionary conserved molecular machine that generates branched actin networks. When activated, the Arp2/3 complex contributes the actin branched junction and thus cross-links the polymerizing actin filaments in a network that exerts a pushing force. The different activators initiate branched...
journal_title:Physiological reviews
pub_type: 杂志文章,评审
doi:10.1152/physrev.00006.2017
更新日期:2018-01-01 00:00:00
abstract::Muscular dystrophies represent a large group of genetic disorders that significantly impair quality of life and often progress to premature death. There is no effective treatment for these debilitating diseases. Most therapies, developed to date, focus on alleviating the symptoms or targeting the secondary effects, wh...
journal_title:Physiological reviews
pub_type: 杂志文章,评审
doi:10.1152/physrev.00046.2017
更新日期:2018-07-01 00:00:00
abstract::Prolactin is a protein hormone of the anterior pituitary gland that was originally named for its ability to promote lactation in response to the suckling stimulus of hungry young mammals. We now know that prolactin is not as simple as originally described. Indeed, chemically, prolactin appears in a multiplicity of pos...
journal_title:Physiological reviews
pub_type: 杂志文章,评审
doi:10.1152/physrev.2000.80.4.1523
更新日期:2000-10-01 00:00:00
abstract::Heterotrimeric G proteins are key players in transmembrane signaling by coupling a huge variety of receptors to channel proteins, enzymes, and other effector molecules. Multiple subforms of G proteins together with receptors, effectors, and various regulatory proteins represent the components of a highly versatile sig...
journal_title:Physiological reviews
pub_type: 杂志文章,评审
doi:10.1152/physrev.00003.2005
更新日期:2005-10-01 00:00:00
abstract::Multidrug Resistance Proteins (MRPs), together with the cystic fibrosis conductance regulator (CFTR/ABCC7) and the sulfonylurea receptors (SUR1/ABCC8 and SUR2/ABCC9) comprise the 13 members of the human "C" branch of the ATP binding cassette (ABC) superfamily. All C branch proteins share conserved structural features ...
journal_title:Physiological reviews
pub_type: 杂志文章,评审
doi:10.1152/physrev.00035.2005
更新日期:2006-07-01 00:00:00
abstract::This review summarizes the receptor-mediated vascular activities of calcitonin gene-related peptide (CGRP) and the structurally related peptide adrenomedullin (AM). CGRP is a 37-amino acid neuropeptide, primarily released from sensory nerves, whilst AM is produced by stimulated vascular cells, and amylin is secreted f...
journal_title:Physiological reviews
pub_type: 杂志文章,评审
doi:10.1152/physrev.00037.2003
更新日期:2004-07-01 00:00:00
abstract::The cardiac muscle and the coronary vasculature are in close proximity to each other, and a two-way interaction, called cross-talk, exists. Here we focus on the mechanical aspects of cross-talk including the role of the extracellular matrix. Cardiac muscle affects the coronary vasculature. In diastole, the effect of t...
journal_title:Physiological reviews
pub_type: 杂志文章,评审
doi:10.1152/physrev.00029.2005
更新日期:2006-10-01 00:00:00
abstract::Voltage-sensing phosphatase (VSP) contains a voltage sensor domain (VSD) similar to that in voltage-gated ion channels, and a phosphoinositide phosphatase region similar to phosphatase and tensin homolog deleted on chromosome 10 (PTEN). The VSP gene is conserved from unicellular organisms to higher vertebrates. Membra...
journal_title:Physiological reviews
pub_type: 杂志文章,评审
doi:10.1152/physrev.00056.2017
更新日期:2018-10-01 00:00:00
abstract::This review focuses on the molecular stratagems utilized by bacteria, yeast, and mammals in their adaptation to hypoxia. Among this broad range of organisms, changes in oxygen tension appear to be sensed by heme proteins, with subsequent transfer of electrons along a signal transduction pathway which may depend on rea...
journal_title:Physiological reviews
pub_type: 杂志文章,评审
doi:10.1152/physrev.1996.76.3.839
更新日期:1996-07-01 00:00:00
abstract::For many decades, the inability of lesioned central neurons to regrow was accepted almost as a "law of nature", and on the clinical level, spinal cord and brain lesions were seen as being irreversible. Today we are starting to understand the mechanisms of neuronal regeneration in the central nervous system and its pre...
journal_title:Physiological reviews
pub_type: 杂志文章,评审
doi:10.1152/physrev.1996.76.2.319
更新日期:1996-04-01 00:00:00
abstract::It has been suggested that highly social mammals, such as naked mole rats and humans, are long-lived due to neoteny (the prolongation of youth). In both species, aging cannot operate as a mechanism facilitating natural selection because the pressure of this selection is strongly reduced due to 1) a specific social str...
journal_title:Physiological reviews
pub_type: 杂志文章,评审
doi:10.1152/physrev.00040.2015
更新日期:2017-04-01 00:00:00