Abstract：
:Activation of phosphatidylinositol (PI)-kinase is involved in the regulation of a wide array of cellular activities. The enzyme exists as a dimer, consisting of a catalytic and a regulatory subunit. Five isoforms of the regulatory subunit have been identified and classified into three groups comprising respectively 85-kDa, 55-kDa, and 50-kDa proteins. Structural differences in the N-terminal regions of the different group members contribute to defining their binding specificity, their subcellular distributions, and their capacity to activate the 110-kDa catalytic subunit. Two widely distributed isoforms of the catalytic subunit have been identified-p110alpha and p110beta. Despite the fact that they bind to the p85alpha regulatory subunit similarly, p110alpha and p110beta appear to have separate functions within cells and to be activated by different stimuli. Moreover, although p85/p110 PI-kinase almost exclusively phosphorylates the D-3 position of the inositol ring in phosphoinositides when purified PI is used as a substrate in vitro, it appears to phosphorylate the D-4 position with similar or higher efficiency in vivo. Thus, it is highly probable that p85/p110 PI-kinase transmits signals to downstream targets via both D-3- and D-4-phosphorylated phosphoinositides.
journal_name
Cell Signaljournal_title
Cellular signallingauthors
Funaki M,Katagiri H,Inukai K,Kikuchi M,Asano Tdoi
10.1016/s0898-6568(99)00086-8subject
Has Abstractpub_date
2000-03-01 00:00:00pages
135-42issue
3eissn
0898-6568issn
1873-3913pii
S0898-6568(99)00086-8journal_volume
12pub_type
杂志文章,评审abstract：:Lipopolysaccharide (LPS) has been shown to up-regulate the expression of vascular cell adhesion molecule (VCAM)-1 which contributes to the occurrence of airway inflammatory diseases. Genetic analysis reveals the existence of activator protein-1 (AP-1) binding site on VCAM-1 promoter region. However, the role of AP-1 i...
journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/j.cellsig.2009.04.006
更新日期：2009-09-01 00:00:00
abstract：:The protective effect of Regulator of G protein Signaling 2 (RGS2) in cardiac hypertrophy is thought to occur through its ability to inhibit the chronic GPCR signaling that promotes pathogenic growth both in vivo and in cultured cardiomyocytes. However, RGS2 is known to have additional functions beyond its activity as...
journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/j.cellsig.2014.02.006
更新日期：2014-06-01 00:00:00
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doi：10.1016/j.cellsig.2003.12.004
更新日期：2004-07-01 00:00:00
abstract：:Beta-adrenergic, alpha-1-adrenergic and glucagon stimulation of glucose release were compared between hepatocytes which were freshly isolated, incubated for 3 h in suspension or cultivated for 4 or 24 h in plastic culture flasks in the presence and absence of the protein kinase C activator 12-O-tetradecanoylphorbol-13...
journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/0898-6568(92)90051-9
更新日期：1992-11-01 00:00:00
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journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/0898-6568(94)90037-x
更新日期：1994-03-01 00:00:00
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journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/j.cellsig.2007.08.013
更新日期：2007-12-01 00:00:00
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journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/j.cellsig.2018.01.014
更新日期：2018-04-01 00:00:00
abstract：:Targeted therapy is becoming the mainstay of cancer treatment due to reduced side effects and enhanced tumor attack. In the last few decades, Murine Double Minute 2 (MDM2) protein has become one of the targets for developing cancer therapies. Blocking MDM2-p53 interaction has long been considered to offer a broad rang...
journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/j.cellsig.2020.109742
更新日期：2020-11-01 00:00:00
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journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/j.cellsig.2010.06.007
更新日期：2010-11-01 00:00:00
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journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/j.cellsig.2014.12.016
更新日期：2015-03-01 00:00:00
abstract：:Human Glioblastoma is one deadly disease; the median survival time is reported to be 13.9 months after treatment. In the present study, we discovered that DHX33 is highly expressed in 84% of all Glioblastoma multiforme (GBM). Knockdown of DHX33 led to significant reduced proliferation and migration in glioblastoma cel...
journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/j.cellsig.2018.12.005
更新日期：2019-02-01 00:00:00
abstract：:In vitro, little specificity is seen for modulation of effectors by different combinations of Gbetagamma subunits from heterotrimeric G proteins. Here, we demonstrate that the coupling of specific combinations of Gbetagamma subunits to different receptors leads to a differential ability to modulate effectors in vivo. ...
journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/s0898-6568(00)00118-2
更新日期：2000-10-01 00:00:00
abstract：:The involvement of cytosolic phospholipase A(2) (cPLA(2)) and ceramide in the accumulation of cholesteryl ester induced by the uptake of oxidized low-density lipoproteins (oxLDL) in macrophages was investigated. Uptake of oxLDL by [(3)H]oleic acid-labeled macrophages stimulated the formation of cholesteryl oleate, and...
journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/s0898-6568(02)00014-1
更新日期：2002-08-01 00:00:00
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journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/0898-6568(95)00019-l
更新日期：1995-07-01 00:00:00
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journal_title：Cellular signalling
pub_type： 杂志文章,评审
doi：10.1016/j.cellsig.2020.109696
更新日期：2020-09-01 00:00:00
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journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/j.cellsig.2016.08.018
更新日期：2016-12-01 00:00:00
abstract：:We have characterized the role of Drosophila PI3K and AKT in ERK pathway activation involving insulin-induced proliferation using Drosophila Schneider cells. After insulin treatment, dPI3K and dAKT activities were both increased along with activation of the dERK pathway components dMEK and dERK. The insulin-induced ac...
journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/j.cellsig.2004.04.004
更新日期：2004-11-01 00:00:00
abstract：:Calcium/calmodulin dependent protein kinase IIδ (CaMKIIδ) acts as a molecular switch regulating cardiovascular Ca2+ handling and contractility in health and disease. Activation of CaMKIIδ is also known to regulate cardiovascular inflammation and is reported to be required for pro-inflammatory NF-κB signalling. In this...
journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/j.cellsig.2018.07.008
更新日期：2018-11-01 00:00:00
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journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/s0898-6568(03)00003-2
更新日期：2003-06-01 00:00:00
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journal_title：Cellular signalling
pub_type： 杂志文章,评审
doi：10.1016/j.cellsig.2010.03.016
更新日期：2010-09-01 00:00:00
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journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/j.cellsig.2010.07.005
更新日期：2010-11-01 00:00:00
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journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/j.cellsig.2007.01.001
更新日期：2007-06-01 00:00:00
abstract：:Octimibate and related nonprostanoid prostacyclin mimetics are partial agonists displaying highly tissue-specific responses. Octimibate demonstrated considerably greater efficacy for stimulation of adenylyl cyclase activity in Chinese hamster ovary cells transiently expressing mouse prostacyclin receptors (mIP-CHO cel...
journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/s0898-6568(01)00210-8
更新日期：2001-11-01 00:00:00
abstract：BACKGROUND:Chemoresistance is one of the main obstacles in the therapy of human cancers, including colorectal cancer (CRC). Long non-coding RNA heart and neural crest derivatives expressed 2-antisense RNA 1 (lncRNA HAND2-AS1) has been demonstrated to be associated with CRC. However, the function of HAND2-AS1 in 5-Fluor...
journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/j.cellsig.2019.109483
更新日期：2020-02-01 00:00:00
abstract：:Recent studies have demonstrated that long non-coding RNAs (lncRNAs) play critical roles in cancer development and progression. However, the mechanism by which lncRNAs contribute to colorectal cancer remains unclear. In this study, we identified the lncRNA, DANCR, which was upregulated in colorectal cancer. The upregu...
journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/j.cellsig.2019.109502
更新日期：2020-03-01 00:00:00
abstract：:PGE2 and prostacyclin each enhance cAMP synthesis in the osteoblast-like cell line UMR-106. The amount of cAMP induced by PGE2 was 5-7-fold greater than the amount induced by cicaprost or iloprost, stable prostacyclin analogues. Both PGE2 and the two prostacyclin analogues enhanced cAMP synthesis with similar time dep...
journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/s0898-6568(98)00052-7
更新日期：1999-03-01 00:00:00
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journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/j.cellsig.2014.02.003
更新日期：2014-06-01 00:00:00
abstract：:Ras proteins function as molecular switches that are activated in response to signalling pathways initiated by various extracellular stimuli and subsequently bind to numerous effector proteins leading to the activation of several signalling cascades within the cell. Ras and Ras-related proteins belong to a large super...
journal_title：Cellular signalling
pub_type： 杂志文章,评审
doi：10.1016/j.cellsig.2010.05.010
更新日期：2010-12-01 00:00:00
abstract：:We analyse the role of the G proteins in regulating collagen gene expression by measuring collagen alpha 1(I) mRNA levels in cultured hepatic stellate cells in basal conditions and after stimulating or inhibiting the major intracellular signalling pathways. Stimulation of Gs protein and adenylyl cyclase or the additio...
journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/s0898-6568(97)00036-3
更新日期：1998-03-01 00:00:00
abstract：:Cortical and medullary thymocytes can be separated from each other by virtue of the fact that only cortical thymocytes bear peanut agglutinin (PNA) receptors. The mitogenic responses of subpopulations of thymocytes were studied. We have confirmed the results of Conlon et al. [(1982) J. Immun. 128, 797-801], that lecti...
journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/0898-6568(90)90031-5
更新日期：1990-01-01 00:00:00
