We addressed the in vivo role of phosphatidylinositol 3-kinase-gamma (PI3K-gamma) in signaling the sequestration of polymorphonuclear leukocytes (PMNs) in lungs and in the mechanism of inflammatory lung vascular injury. We studied mice with deletion of the p110 catalytic subunit of PI3K-gamma (PI3K-gamma(-/-) mice). We measured lung tissue PMN sequestration, microvascular permeability, and edem...

Phosphatidylinositol 3-kinase (PI3K) promotes cell survival and communication by activating its downstream effector Akt kinase. Here we show that PS1, a protein involved in familial Alzheimer's disease (FAD), promotes cell survival by activating the PI3K/Akt cell survival signaling. This function of PS1 is unaffected by gamma-secretase inhibitors. Pharmacological and genetic evidence indicates ...

Purpose: To investigate the effect of Pinellia polysaccharide on airway remodeling in cough-variant asthmatic rats, and involvement PI3K/AKT signal route process.
 Methods: Seventy-five Sprague-Dawley (SD) rats were assigned to 5 groups: blank control, model, low-dose (100 mg/kg), medium-dose (200 mg/kg) high-dose (400 groups, each with 15 rats. Immunoblot assay was employed measure relati...

The lipid products of phosphoinositide 3-kinase (PI3K) are involved in many cellular responses such as proliferation, migration, and survival. Disregulation of PI3K-activated pathways is implicated in different diseases including cancer and diabetes. Among the three classes of PI3Ks, class I is the best characterized, whereas class II has received increasing attention only recently and the prec...

Purpose: To investigate the influence of suppressor cytokine signaling 3 (SOCS3) on rats with colon cancer (CC).
 Methods: Sprague-Dawley (SD) were randomly divided into CC group and control group, then rat model was constructed. The expression SOCS3 in tissues determined by quantitative real time-polymerase chain reaction (qRT-PCR). Hematoxylin-eosin staining (H&E) used to examine tis...

Purpose: To investigate the influence of suppressor cytokine signaling 3 (SOCS3) on rats with colon cancer (CC).
 Methods: Sprague-Dawley (SD) were randomly divided into CC group and control group. models constructed. The expression SOCS3 in tissues was determined by quantitative real time-polymerase chain reaction (qRT-PCR). Hematoxylin-eosin staining (H&E) used to examine tissue morp...

Phosphatidylinostitol-3-kinase (PI3K) is the potential anticancer target in the PI3K/Akt/ mTOR pathway. Here we reviewed the ATP-competitive small molecule PI3K inhibitors in the past few years, including the pan Class I PI3K inhibitors, the isoform-specific PI3K inhibitors and/or the PI3K/mTOR dual inhibitors.

Gastric cancer is one of the most common malignancies with a high mortality rate world. This study intends to make clear role and mechanism Scutellarin (Scu), flavonoid isolated from Erigeron breviscapus (Vant.) Hand.-Mazz, in regulating evolvement gastric cancer. We selected different doses Scu treat cells (MGC-803 AGS). Then, cell counting kit-8 (CCK8) assay was conducted verify proliferation...

Phosphatidylinositol 3-kinase (PI3K) activity is increased in aortae from deoxycorticosterone (DOCA)-salt rats and enhanced PI3K activity contributes to the arterial hyperreactivity in these animals. Because PI3K activity is increased in DOCA-salt hypertension, we postulated that phosphorylation of Akt and glycogen synthase kinase 3 (GSK-3), serine threonine kinases that are downstream of PI3K,...