Abstract:
:Although it is well established that epidermal growth factor receptors (EGFRs) are asymmetrically expressed at the basolateral plasma membrane in polarized epithelial cells, how this process is regulated is not known. The purpose of this study was to address the mechanism of directed EGFR basolateral sorting using the Madin-Darby canine kidney (MDCK) cell model. The first set of experiments established sorting patterns for endogenous canine EGFRs. The polarity of the canine EGFR was not quantitatively affected by differences in electrical resistance exhibited by the MDCK I and MDCK II cell strains. In both cases, greater than 90% of total surface EGFRs was localized to the basolateral surface. Canine EGFRs sort directly to the basolateral membrane from the trans-Golgi network with a half-time of approximately 45 min and have an approximate t1/2 of 12.5 h once reaching the basolateral surface. Human holoreceptors expressed in stably transfected MDCK cells also localize to the basolateral membrane with similar efficiency. To identify EGFR sequences necessary for basolateral sorting, MDCK cells were transfected with cDNAs coding for cytoplasmically truncated human receptor proteins. Human EGFRs truncated at Arg-651 were localized predominantly at the apical surface of filter-grown cells, whereas receptors truncated at Leu-723 were predominantly basolateral. These results suggest that the cytoplasmic juxtamembrane domain contains a positive basolateral sorting determinant. Moreover, the EGFR ectodomain or transmembrane domain may possess a cryptic sequence that specifically interacts with the apical sorting machinery once the dominant basolateral sorting signal is removed. Further elucidation of the precise location of these signals will enhance our basic understanding of regulated plasma membrane sorting, as well as the functional consequences of inappropriate EGFR expression associated with certain pathophysiologic and malignant states.
journal_name
J Cell Physioljournal_title
Journal of cellular physiologyauthors
Hobert M,Carlin Cdoi
10.1002/jcp.1041620316subject
Has Abstractpub_date
1995-03-01 00:00:00pages
434-46issue
3eissn
0021-9541issn
1097-4652journal_volume
162pub_type
杂志文章abstract::The existence of cancer stem cells is debatable in numerous solid tumors, yet in leukemia, there is compelling evidence of this cell population. Leukemic stem cells (LSCs) are altered cells in which accumulating genetic and/or epigenetic alterations occur, resulting in the transition between the normal, preleukemic, a...
journal_title:Journal of cellular physiology
pub_type: 杂志文章,评审
doi:10.1002/jcp.29394
更新日期:2020-06-01 00:00:00
abstract::The Giemsa banding pattern of the chromosomes has been analyzed in a line of transformed golden hamster cells, revertant and re-revertant cells and their tumors. The transformed and re-revertant cells were malignant in vivo and had gained an additional chromosome 5(7). Revertants with a suppression of malignancy lost ...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1040870112
更新日期:1976-01-01 00:00:00
abstract::Chemokines play an important role in regulating the complex immune system at the maternal-fetal interface during pregnancy. Among various chemokines, CC motif chemokine ligand 2 (CCL2) plays a role in the recruitment of immune regulatory cells to implantation sites within the endometrium. In cattle, CCL2 is abundantl...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
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更新日期:2018-04-01 00:00:00
abstract::Matrix metalloproteinase-2 (MMP-2) is best understood for its biological actions outside the cell. However, MMP-2 also localizes to intracellular compartments and the cytosol where it has several substrates, including troponin I (TnI). Despite a growing list of cytosolic substrates, we currently do not know the mechan...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.24040
更新日期:2012-10-01 00:00:00
abstract::Previously, we found that hypoxia can deeply affect the production of cytokines in human peripheral mononuclear cells (PBMC). Here, we demonstrated that the cycle progression of hypoxic PBMC, cultured in the presence or not of a specific T cell activator such as phytohaemagglutinin (PHA), was delayed when compared wit...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/(SICI)1097-4652(199912)181:3<448::AID-JCP8
更新日期:1999-12-01 00:00:00
abstract::Using rapid kinetic techniques, we have determined the kinetics of zero-trans influx and equilibrium exchange of adenosine, and its uptake and in situ phosphorylation at 25 degrees C in human erythrocytes which were pretreated with 2'-deoxycoformycin to inhibit deamination of adenosine. Both the Km and Vmax for adenos...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041250223
更新日期:1985-11-01 00:00:00
abstract::Previous studies suggested that the decreased collagen production observed in Kirsten sarcoma virus (Ki-MSV)-transformed BALB 3T3 cells could be reversed by treating cells with Bt2cAMP. We examined the relationship between intracellular cAMP, collagen production, and other properties in NRK and BALB 3T3 cells transfor...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041220117
更新日期:1985-01-01 00:00:00
abstract::MicroRNAs (miRNAs) is a small molecule (19-25 nucleotide) noncoding RNA that inhibits the expression of target messenger RNA (mRNA) at the posttranscriptional level as an endogenous regulator. There is an increasing evidence that miR-199a-3p has a significant effect on the development of multiple tumors. However, the ...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.28899
更新日期:2019-12-01 00:00:00
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journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.21273
更新日期:2008-03-01 00:00:00
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journal_title:Journal of cellular physiology
pub_type: 杂志文章,评审
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更新日期:2018-05-01 00:00:00
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journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/1097-4652(200011)185:2<280::AID-JCP13>3.0.
更新日期:2000-11-01 00:00:00
abstract::We investigated the role of mammalian target of rapamycin/nuclear factor-kappa B (mTOR/NF-κB) signaling pathway in high thoracic epidural anesthesia (HTEA) against myocardial ischemia-reperfusion (I/R) injury in rats. The rat model of myocardial I/R injury was established. Ninety rats were divided into the normal, sha...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.26320
更新日期:2018-09-01 00:00:00
abstract::To determine if Chinese Hamster Ovary (CHO) cells in culture are able to metabolize steroids, CHO cells were incubated in defined medium with [14C]pregnenolone. As shown, [14C]pregnenolone is metabolized to progesterone and other delta 53 beta steroids; this steroidogenic response is appreciably enhanced upon exposure...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041080103
更新日期:1981-07-01 00:00:00
abstract::We have examined the effects of constitutive expression of PTHrP on the growth and differentiation of populations of cells derived from a clonal chondrocytic cell line, CFK2. Cells were stably transfected with cDNA encoding either full-length, secretory PTHrP (CFK2P) or nonsecretory PTHrP (CFK2P-SS). In cultures of ce...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/(SICI)1097-4652(199610)169:1<33::AID-JCP4>
更新日期:1996-10-01 00:00:00
abstract::Gastric cancer has the fifth highest incidence of disease and is the third leading cause of cancer-associated mortality in the world. The etiology of gastric cancer is complex and needs to be fully elucidated. Thus, it is necessary to explore potential pathogenic genes and pathways that contribute to gastric cancer. G...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.29177
更新日期:2020-03-01 00:00:00
abstract::Lung cancer is the leading cause of cancer death worldwide. Although diagnostic methods and targeted drugs have been rapidly developed in recent years, the underlying molecular mechanisms in the pathogenesis of lung cancer remain enigmatic. The N6-methyladenosine (m6 A) modification is the most common modification of ...
journal_title:Journal of cellular physiology
pub_type: 杂志文章,评审
doi:10.1002/jcp.30136
更新日期:2020-11-01 00:00:00
abstract::Mice of the C3H/HeJ strain exhibit low inflammatory and immunological responses to certain bacterial lipopolysaccharide (LPS) preparations. Lymphocytes from C3H/HeJ mice also show defective LPS-induced mitogenesis. We tested the colony stimulating activity (CSA) response of C3H/HeJ mice. As controls we used mice of th...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1040920219
更新日期:1977-08-01 00:00:00
abstract::Spiral artery remodeling at the maternal-fetal interface is crucial for successful pregnancy and requires the interaction between the first trimester trophoblast and the endothelial cells of the maternal vessels. However, the precise mechanism of this dialog has yet to be determined. The current study investigated whe...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.27358
更新日期:2019-05-01 00:00:00
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journal_title:Journal of cellular physiology
pub_type: 杂志文章,评审
doi:10.1002/jcp.25643
更新日期:2017-09-01 00:00:00
abstract::Heparin-binding epidermal growth factor-like growth factor (HB-EGF) mRNA and protein expression is induced by EGF in MCF-10A nontransformed and Ha-ras transfected human mammary epithelial cells. The anti-EGF receptor (EGFR) blocking monoclonal antibody (MAb) 225 and the EGFR tyrosine kinase inhibitor PD153035 were abl...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/1097-4652(200002)186:2<233::AID-JCP1017>3.
更新日期:2001-02-01 00:00:00
abstract::Lesional psoriatic epidermis displays a number of phenotypic changes that are distinct from the differentiation program found in normal interfollicular epidermis. In psoriatic epidermis, keratinocytes are hyperproliferative and several differentiation-associated molecules are expressed that are absent in normal skin (...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
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更新日期:1996-08-01 00:00:00
abstract::The effect of retinoic acid on human fibroblasts was studied in a cell culture model of chronologic aging and photoaging. During early exponential phase, all trans-retinoic acid significantly stimulated growth rate of adult arm-derived dermal fibroblasts but not of newborn or adult foreskin-derived fibroblasts. Retino...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041390117
更新日期:1989-04-01 00:00:00
abstract::MCF-10A human mammary epithelial cells cultured inside reconstituted basement membrane form acini that resemble the acinar structures of mammary lobules. This three-dimensional culture system has been used for identifying and characterizing the signal transduction pathways controlling cell proliferation and death, and...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.20639
更新日期:2006-07-01 00:00:00
abstract::Several agents that act through G-protein-coupled receptors and also stimulate phosphoinositide-specific phospholipase C (PI-PLC), including angiotensin II, vasopressin, norepinephrine, and prostaglandin (PG) F2alpha, activated the ERK1 (p44mapk) and ERK2 (p42mapk) members of the mitogen-activated protein (MAP) kinase...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/(SICI)1097-4652(199806)175:3<348::AID-JCP1
更新日期:1998-06-01 00:00:00
abstract::Serum-free mouse embryo cells, cultured in basal nutrient medium supplemented with insulin, transferrin, epidermal growth factor, fibronectin, and high-density lipoprotein, do not exhibit growth crisis, lack detectable chromosomal aberrations, are nontumorigenic in vivo, are dependent on epidermal growth factor for su...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041440110
更新日期:1990-07-01 00:00:00
abstract::Induction of vascular smooth muscle (VSM) alpha-actin mRNA expression during cytodifferentiation of mouse BC3H1 myogenic cells coincides with the accumulation of cell surface- and extracellular matrix-associated sulfated proteoglycans. Inhibition of proteoglycan biosynthesis in myogenic cells using an artificial beta-...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041640122
更新日期:1995-07-01 00:00:00
abstract::Insufficient invasion ability of trophoblasts might be associated with the development of recurrent miscarriage (RM). Ubiquitin-specific protease 25 (USP25) can regulate the processes of invasion and migration in different types of cancer cells. However, the effect of USP25 on trophoblasts and its roles in the develop...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.28593
更新日期:2019-11-01 00:00:00
abstract::The human polyomavirus, JC virus (JCV), provides an excellent model system to investigate the reciprocal interaction of the immune and nervous systems. Infection with JCV occurs during childhood and the virus remains in the latent state with no apparent clinical symptoms. However, under immunosuppressed conditions, th...
journal_title:Journal of cellular physiology
pub_type: 杂志文章,评审
doi:10.1002/jcp.10096
更新日期:2002-06-01 00:00:00
abstract::Cardiac fibroblast (CF) differentiation to myofibroblasts expressing α-smooth muscle actin (α-SMA) plays a key role in cardiac fibrosis. Therefore, a study of the mechanism regulating α-SMA expression is a means to understanding the mechanism of fibroblast differentiation and cardiac fibrosis. Previous studies have sh...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.27471
更新日期:2019-05-01 00:00:00
abstract::Previous studies have indicated that intracellular Ca2+ is involved in fetal bovine serum (FBS)- or growth factor (GF)-stimulated Na+ influx in human foreskin fibroblasts (HSWP). In the present study, 45Ca2+ efflux from serum-deprived HSWP cells was measured in response to 10% FBS or GF [lys-bradykinin, vasopressin, e...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041170105
更新日期:1983-10-01 00:00:00