5 -
Q13049
REA
receptor induces
P29323
REA
phosphorylation and proliferation through ADAM - 17 tumor necrosis factor-alpha-converting enzyme (
P78536
REA
) activation and heparin-bound epidermal growth factor-like growth factor ( HB -
P01133
REA
) shedding in mesangial cells . In this study , we present multiple lines of evidence to support a critical role for heparin-bound
P01133
REA
( epidermal growth factor ) - like growth factor ( HB -
P01133
REA
) and tumor necrosis factor-alpha-converting enzyme (
P78536
REA
) (
P78536
REA
) in the transactivation of
P01133
REA
receptor (
P00533
REA
) ,
P29323
REA
phosphorylation , and cellular proliferation induced by the 5 - HT ( 2A ) receptor in renal mesangial cells . 5 - hydroxy-tryptamine ( 5 - HT ) resulted in rapid activation of
P78536
REA
, HB -
P01133
REA
shedding ,
P00533
REA
activation ,
P29323
REA
phosphorylation , and longer term increases in DNA content in mesangial cells .
P29323
REA
phosphorylation was attenuated by 1 ) neutralizing
P00533
REA
antibodies and the
P00533
REA
kinase inhibitor , AG1478 , 2 ) neutralizing HB -
P01133
REA
, but not amphiregulin , antibodies , heparin , or CM197 , and 3 ) pharmacological inhibitors of matrix-degrading metalloproteinases or
P78536
REA
small interfering RNA . Exogenously administered HB -
P01133
REA
stimulated
P29323
REA
phosphorylation . Additionally ,
P78536
REA
was co-immunoprecipitated with HB -
P01133
REA
. Small interfering RNA against
P78536
REA
also blocked 5 - HT-induced increases in
P29323
REA
phosphorylation , HB -
P01133
REA
shedding , and DNA content . In aggregate , this work supports a pathway map that can be depicted as follows : 5 - HT --> 5 - HT ( 2A ) receptor -->
P78536
REA
--> HB -
P01133
REA
shedding -->
P00533
REA
-->
P29323
REA
--> increased DNA content . To our knowledge , this is the first time that
P78536
REA
has been implicated in 5 - HT-induced
P00533
REA
transactivation or in proliferation induced by a G protein-coupled receptor in native cells in culture .
1
Electrophysiological examination of the effects of sustained flibanserin administration on serotonin receptors in rat brain .
P08908
REA
receptor agonists have proven to be effective antidepressant medications , however they suffer from a significant therapeutic lag before depressive symptoms abate .
DB04908
MENMAX
DB04908
MEN
is a
P08908
REA
receptor agonist and 5 -
Q13049
REA
receptor antagonist developed to possibly induce a more rapid onset of antidepressant action through its preferential postsynaptic
P08908
REA
receptor agonism .
DB04908
MEN
antagonized the effect of microiontophoretically-applied DOI in the medial prefrontal cortex ( mPFC ) following 2 days of administration , indicating antagonism of postsynaptic 5 -
Q13049
REA
receptors . This reduction in the effect of locally-applied DOI was no longer present following 7 - day flibanserin administration . Two-day flibanserin administration only marginally reduced the firing activity of dorsal raphe ( DRN ) 5 - HT neurons . Following 7 days of administration , 5 - HT neuronal firing activity had returned to normal and the somatodendritic
P08908
REA
autoreceptors were desensitized . The responsiveness of postsynaptic
P08908
REA
receptors located on
P07451
REA
hippocampus pyramidal neurons and mPFC neurons , examined using microiontophoretically-applied 5 - HT and gepirone , was unchanged following a 7 - day flibanserin treatment . As demonstrated by the ability of the
P08908
REA
receptor antagonist WAY 100635 to selectively increase the firing of hippocampal neurons in 2 - and 7 - day treated rats , flibanserin enhanced the tonic activation of postsynaptic
P08908
REA
receptors in this brain region . The results suggest that flibanserin could be a therapeutically useful compound putatively endowed with a more rapid onset of antidepressant action .
2
Circulating endocannabinoids in insulin sensitive vs . insulin resistant obese postmenopausal women . A MONET group study . OBJECTIVE : To measure the circulating levels of endocannabinoids and related molecules at fasting , after acute hyperinsulinemia and after weight loss in insulin sensitive vs . insulin resistant obese postmenopausal women . DESIGN AND METHODS : The sample consisted of 30 obese postmenopausal women ( age : 58.9 ± 5.2 yrs ; BMI : 32.9 ± 3.6 kg / m ( 2 ) ) . Subjects underwent a 3 - hour hyperinsulinaemic-euglycaemic clamp (
O14777
REA
) ( glucose disposal rate ( M-value ) : 10.7 ± 3.3 mg min ( - 1 ) kg ( - 1 ) FFM ) and 6 - month weight loss intervention . Participants were classified as insulin sensitive obese ( ISO ) or insulin resistant obese ( IRO ) based on a predefined cutoff . Plasma levels of the endocannabinoids , anandamide ( AEA ) , 2 - arachidonoylglycerol ( 2 - AG ) , and of the AEA-related compounds , palmitoylethanolamide ( PEA ) and oleoylethanolamide ( OEA ) , were measured by liquid chromatography-mass spectrometry . RESULTS : IRO presented higher levels of 2 - AG ( P < 0.05 ) independently of the
O14777
REA
and weight loss , whereas the
O14777
REA
had an independent inhibitory effect on AEA , PEA , and OEA levels ( P < 0.05 ) in both groups . Furthermore , there was an independent stimulatory effect of weight loss only on PEA levels in both groups ( P < 0.05 ) . CONCLUSIONS : This study is the first to show that higher circulating levels of the endocannabinoid 2 - AG are found in IRO compared to ISO postmenopausal women , and that weight loss is associated with an increase in PEA , a
Q07869
REA
- α ligand .
3
P00533
REA
cooperates with glucose transporter
P13866
REA
to enable chromatin remodeling in response to ionizing radiation . BACKGROUND AND PURPOSE :
P00533
REA
and the sodium-dependent glucose transporter ,
P13866
REA
, are found in complex after radiation treatment . The aim of this study was to elucidate the role of
P00533
REA
in glucose uptake and chromatin remodeling . MATERIAL AND METHODS : DB09341 accumulation was quantified with help of ( 3 ) H-glucose . Involvement of SGLT was detected by a specific inhibitor . Role of
P00533
REA
was proved by
P00533
REA
overexpression and siRNA driven knockdown . Functional endpoints were intracellular DB00171 levels , protein expression , residual DNA-damage and colony formation . RESULTS :
P00533
REA
/
P13866
REA
interactions in response to ionizing radiation were associated with increased glucose uptake . Nevertheless , tumor cells exhibit DB00171 depletion following irradiation . Recovery from radiation-induced DB00171 crisis was
P00533
REA
/ SGLT-dependent and associated with increased cell survival and improved DNA-repair . The blockage of either
P00533
REA
or SGLT inhibited DB00171 level recovery and histone H3 modifications crucial for both chromatin remodeling and DNA repair in response to irradiation . Inhibition of the acetyltransferase
Q92993
REA
, which is essential for histone H3 -
P35527
REA
acetylation and
Q13315
REA
activation , prevented energy crisis and chromatin remodeling . CONCLUSIONS : Radiation-associated interactions between
P13866
REA
and
P00533
REA
resulted in increased glucose uptake , which counteracts the DB00171 crisis in tumor cells due to chromatin remodeling . The blockage of recovery from DB00171 crisis led to radio-sensitization in tumor cells .
4
AVE 3085 protects coronary endothelium from the impairment of asymmetric dimethylarginine by activation and recoupling of
P29474
REA
. PURPOSE :
DB01686
MEN
(
DB01686
MEN
) is an endogenous inhibitor of
P29474
REA
and it is recognized as a risk factor for endothelial dysfunction in cardiovascular diseases . We investigated the effect of AVE 3085 , a newly developed transcription enhancer of
P29474
REA
, on
DB01686
MEN
- induced endothelial dysfunction in coronary arteries with underlying mechanisms explored . METHODS : Porcine coronary small arteries ( diameter 600-800 μm ) were studied in a myograph for endothelium-dependent relaxation to bradykinin and endothelium-independent relaxation to sodium nitroprusside . Protein expressions of
P29474
REA
and phosphorylated -
P29474
REA
( p -
P29474
REA
( Ser 1177 ) and p -
P29474
REA
( Thr 495 ) ) , and nitrotyrosine formation were determined by Western blot . NO release was directly measured with a NO microsensor . Productions of O ( 2 ) ( . - ) and peroxynitrite ( ONOO ( - ) ) were determined by lucigenin - and luminol - enhanced chemiluminescence respectively . RESULTS : Exposure to
DB01686
MEN
significantly decreased the bradykinin-induced vasorelaxation and reduced the protein expression of p -
P29474
REA
( Ser 1177 ) whereas increased the expression of p -
P29474
REA
( Thr 495 ) and nitrotyrosine . Pre-incubation with AVE 3085 restored the bradykinin-induced relaxation , reversed the decrease of p -
P29474
REA
( Ser 1177 ) , and lowered the level of p -
P29474
REA
( Thr 495 ) and nitrotyrosine . NO release in response to bradykinin was significantly reduced by
DB01686
MEN
and such reduction was restored by AVE 3085 . AVE 3085 also prevented the elevation of O ( 2 ) ( . - ) and ONOO ( - ) levels in coronary arteries exposed to
DB01686
MEN
. CONCLUSIONS : AVE 3085 prevents
DB01686
MEN
- induced endothelial dysfunction in coronary arteries . The protective effect of AVE 3085 may be attributed to increased NO production resulting from enhanced
P29474
REA
activation , and decreased oxidative stress that involves inhibition of O ( 2 ) ( . - ) generation by
P29474
REA
recoupling . The present study suggested the therapeutic potential of AVE 3085 in endothelial dysfunction in cardiovascular disorders .
5
[ Cell cycle analysis of endometrial cancer cells in vitro treated with growth factor and steroid hormone ] . The aim of this study was to overtake the mechanism of the control system in endometrial cancer cell line in vitro . Ishikawa cell ( IK cell ) and
O14777
REA
- 1 cell (
O14777
REA
cell ) derived from endometrial cancers were cultured with serum free medium ( SFM - 101 ) . IK cell possessed
P03372
REA
( ER ) ,
P06401
REA
( PR ) , Epidermal growth factor (
P01133
REA
) and its receptor (
P00533
REA
) .
O14777
REA
cell had PR ,
P01133
REA
, and
P00533
REA
, however
O14777
REA
cell did not keep ER .
P01133
REA
stimulated the growth of IK cell , but the growth of
O14777
REA
cell was not stimulated by
P01133
REA
. S phase cells were increased by
P01133
REA
in IK cell , but were not increased by
P01133
REA
in
O14777
REA
cell . The growth of IK cell was stimulated significantly by
P01133
REA
and Estradiol - 17 beta ( E2 ) +
P01133
REA
than control . However , E2 +
P01133
REA
did not stimulate the growth of IK cell than
P01133
REA
significantly .
DB01406
SUB
( D ) and D +
P01133
REA
inhibited the growth of IK cell significantly than control . S phase cells were decreased by the treatment of D and D +
P01133
REA
. From our results ,
P01133
REA
stimulated the growth of ER positive endometrial cancer cell , but
P01133
REA
did not stimulate ER negative endometrial cancer cell . E2 +
P01133
REA
and
P01133
REA
stimulated the growth of IK cell as a same . However , D inhibited the growth of IK cell that was stimulated by
P01133
REA
.
6
PP2Cdelta ( Ppm 1d ,
O15297
REA
) , an endogenous inhibitor of p38 MAPK , is regulated along with Trp 53 and Cdkn 2a following p38 MAPK inhibition during mouse preimplantation development . Preimplantation embryos utilize mitogen-activated protein kinase signaling ( MAPK ) pathways to relay signals from the external environment to prepare appropriate responses and adaptations to a changing milieu . It is therefore important to investigate how MAPK pathways are regulated during preimplantation development . This study was conducted to investigate whether PP2Cdelta ( Ppm 1d ,
O15297
REA
) is expressed during mouse preimplantation development and to determine the influences of p38 MAPK inhibition on expression of Trp 53 ( p53 ) , Ppm 1d , (
O15297
REA
) , and Cdkn 2a ( p16 ) during mouse preimplantation development . Our results indicate that Trp 53 , Ppm 1d , and Cdkn 2a mRNAs and TRP 53 and PP2Cdelta proteins are expressed throughout mouse preimplantation development . Treatment of 2 - cell embryos with
DB04338
MEN
( potent inhibitor of p38 MAPK alpha / beta /
Q16539
REA
/ 11 ) significantly increased Trp 53 , Ppm 1d and Cdkn 2a and Mapk 14 mRNA levels at 12 and 24 hr . Treatment of 8 - cell embryos with
DB04338
MEN
for 12 hr increased Trp 53 , Ppm 1d , and Cdkn 2a mRNA levels , but not Mapk 14 mRNA levels . Treatment of 8 - cell embryos for 24 hr increased Trp 53 , and Ppm 1d mRNA levels , but decreased Cdkn 2a and Mapk 14 mRNA levels . Therefore , blockade of p38 MAPK activity is associated with embryo stage specific influences on Trp 53 , Ppm 1d , Cdkn 2a , and Mapk 14 expression during mouse preimplantation development . These results define downstream targets of p38 MAPK during preimplantation development and indicate that the p38 MAPK pathway regulates Trp 53 , Ppm 1d , and Cdkn 2a expression . This study increases our understanding of the mechanisms controlling preimplantation development and of the interactions between preimplantation embryos and their culture environments .
7
P03372
REA
β ( ERβ 1 ) transactivation is differentially modulated by the transcriptional coregulator
Q92993
REA
in a cis-acting element-dependent manner .
P03372
REA
( ER ) β1 and ERα have overlapping and distinct functions despite their common use of estradiol as the physiological ligand . These attributes are explained in part by their differential utilization of coregulators and ligands . Although
Q92993
REA
has been shown to interact with both receptors , its regulatory role in ERβ 1 transactivation has not been defined . In this study , we found that
Q92993
REA
enhances transactivation of ERβ 1 at the AP - 1 site but suppresses its transcriptional activity at the estrogen-response element ( ERE ) site in an estradiol-independent manner . However , different estrogenic compounds can modify the
Q92993
REA
action . The corepressor activity of
Q92993
REA
at the ERE site is abolished by diarylpropionitrile , genistein , equol , and bisphenol A , whereas its coactivation at the AP - 1 site is augmented by fulvestrant (
DB00947
MEN
) . GRIP 1 is an important tethering mediator for ERs at the AP - 1 site . We found that coexpression of GRIP 1 synergizes the action of
Q92993
REA
. Although
Q92993
REA
is a known acetyltransferase , it is unable to acetylate ERβ 1 , and its coregulatory functions are independent of its acetylation activity . In addition , we showed the co-occupancy of ERβ 1 and
Q92993
REA
at ERE and AP - 1 sites of ERβ 1 target genes .
Q92993
REA
differentially regulates the endogenous expression of the target genes by modulating the binding of ERβ 1 to the cis-regulatory regions . Thus , we have identified
Q92993
REA
as the first dual-function coregulator of ERβ 1 .
8
P05362
REA
- independent lymphocyte transmigration across high endothelium : differential up-regulation by interferon gamma , tumor necrosis factor-alpha and interleukin 1 beta . The adhesion of lymphocytes to cytokine-treated high endothelium was studied using cultured high endothelial cells (
O14777
REA
) . Pretreatment of the
O14777
REA
layer with a variety of cytokines caused up-regulation of lymphocyte adhesion with the effects ordered interferon gamma (
P01579
REA
) greater than tumor necrosis factor-alpha (
P01375
REA
) greater than or equal to interleukin 1 beta ( IL 1 beta ) . Increased lymphocyte adhesion was found to be independent of
P05362
REA
as expression by
O14777
REA
was not increased by cytokines and antibodies against
P05362
REA
did not block adhesion . The peptide CS1 and anti-beta 1 integrin subunit antibodies , however , caused partial inhibition of lymphocyte adhesion thus indicating a role for fibronectin on
O14777
REA
and alpha 4 beta 1 on lymphocytes . Study of the kinetics of lymphocyte adhesion showed that the effects of
P01579
REA
and
P01375
REA
were persistent and remained detectable 2.5 h after removal of the cytokines whereas the effects of IL 1 beta were transient and were not sustained beyond 1 h . All of the cytokines used caused transient increases in the number of surface-bound lymphocytes with
P01579
REA
greater than
P01375
REA
greater than or equal to IL 1 beta , however , the most dramatic effect was on the transmigration of lymphocytes across the
O14777
REA
. Both
P01579
REA
and
P01375
REA
caused sustained increased transmigration with
P01579
REA
having the greater effect . IL 1 beta had little effect on transmigration . This model demonstrates that the binding and transmigration of lymphocytes across
O14777
REA
can be differentially regulated by the actions of individual cytokines . These results support the concept that locally produced cytokines regulate
O14777
REA
function within the lymph node .
9
Emerging small molecule drugs . Dyslipidaemia is a major risk factor for cardiovascular diseases . Pharmacological lowering of LDL-C levels using statins reduces cardiovascular risk . However , a substantial residual risk persists especially in patients with type 2 diabetes mellitus . Because of the inverse association observed in epidemiological studies of HDL-C with the risk for cardiovascular diseases , novel therapeutic strategies to raise HDL-C levels or improve HDL functionality are developed as complementary therapy for cardiovascular diseases . However , until now most therapies targeting HDL-C levels failed in clinical trials because of side effects or absence of clinical benefits . This chapter will highlight the emerging small molecules currently developed and tested in clinical trials to pharmacologically modulate HDL-C and functionality including new
P11597
REA
inhibitors ( anacetrapib , evacetrapib ) , novel
Q07869
REA
agonists ( K - 877 , CER - 002 ,
P15924
REA
- 8658 , INT 131 and
DB05187
MEN
) , LXR agonists ( ATI - 111 , LXR - 623 , XL - 652 ) and RVX - 208 .
10
P00533
REA
inhibitors exacerbate differentiation and cell cycle arrest induced by retinoic acid and vitamin D3 in acute myeloid leukemia cells . By means of an unbiased , automated fluorescence microscopy-based screen , we identified the epidermal growth factor receptor (
P00533
REA
) inhibitors erlotinib and gefitinib as potent enhancers of the differentiation of HL - 60 acute myeloid leukemia ( AML ) cells exposed to suboptimal concentrations of vitamin A ( all-trans retinoic acid , DB00755 ) or vitamin D ( 1α , DB00146 , VD ) . Erlotinib and gefitinib alone did not promote differentiation , yet stimulated the acquisition of morphological and biochemical maturation markers ( including the expression of CD11b and
P08571
REA
as well as increased NADPH oxidase activity ) when combined with either DB00755 or VD . Moreover , the combination of erlotinib and DB00755 or VD synergistically induced all the processes that are normally linked to terminal hematopoietic differentiation , namely , a delayed proliferation arrest in the G0 / P55008 phase of the cell cycle , cellular senescence , and apoptosis . Erlotinib potently inhibited the ( auto ) phosphorylation of mitogen-activated protein kinase 14 (
Q16539
REA
, best known as p38 ( MAPK ) ) and
P12931
REA
family kinases ( SFKs ) . If combined with the administration of DB00755 or VD , the inhibition of p38 ( MAPK ) or SFKs with specific pharmacological agents mimicked the pro-differentiation activity of erlotinib . These data were obtained with 2 distinct AML cell lines ( HL - 60 and MOLM - 13 cells ) and could be confirmed on primary leukemic blasts isolated from the circulation of AML patients . Altogether , these findings point to a new regimen for the treatment of AML , in which naturally occurring pro-differentiation agents ( DB00755 or VD ) may be combined with
P00533
REA
inhibitors .
11
Bradykinin inhibits high glucose - and growth factor-induced collagen synthesis in mesangial cells through the B2 - kinin receptor . Mesangial matrix expansion is an early lesion leading to glomeruloclerosis and chronic renal diseases . A beneficial effect is achieved with angiotensin I-converting enzyme inhibitors ( ACEI ) , which also favor bradykinin ( BK ) B2 receptor (
P30411
REA
) activation . To define the underlying mechanism , we hypothesized that
P30411
REA
activation could be a negative regulator of collagen synthesis in mesangial cells ( MC ) . We investigated the effect of BK on collagen synthesis and signaling in MC . Inflammation was evaluated by intercellular adhesion molecule - 1 (
P05362
REA
) expression . BK inhibited collagen I and IV synthesis stimulated by high glucose , epithelial growth factor (
P01133
REA
) , and transforming growth factor-β ( TGF-β ) but did not alter
P05362
REA
. Inhibition of collagen synthesis was
P30411
REA
but not
P46663
REA
mediated . PKC or phosphatidylinositol 3 - kinase ( PI3K ) inhibitors mimicked the BK effect .
P30411
REA
activation inhibited TGF-β - and
P01133
REA
- induced Erk 1/2 ,
Q15796
REA
/ 3 , Akt S473 , and
P00533
REA
phosphorylation . A phosphatase inhibitor prevented BK effects . The in vivo impact of
P30411
REA
on mesangial matrix expansion was assessed in streptozotocin-diabetic rodents . Deletion of
P30411
REA
increased mesangial matrix expansion and albuminuria in diabetic mice . In diabetic rats , matrix expansion and albuminuria were prevented by ACEI but not by ACEI and
P30411
REA
antagonist cotreatment . Consistently , the lowered BK content of diabetic glomeruli was restored by ACEI . In conclusion , deficient
P30411
REA
activation aggravated mesangial matrix expansion in diabetic rodents whereas
P30411
REA
activation reduced MC collagen synthesis by a mechanism targeting Erk 1/2 and Akt , common pathways activated by
P01133
REA
and TGF-β . Taken together , the data support the hypothesis of an antifibrosing effect of
P30411
REA
activation .
12
Development of drugs to target interactions between leukocytes and endothelial cells and treatment algorithms for inflammatory bowel diseases . Increased understanding of the pathogenesis of inflammatory bowel diseases ( IBDs ) has led to new therapeutic strategies . One of these is to target the molecules that regulate interactions between leukocytes and endothelial cells at sites of inflammation ( mainly leukocyte integrins and endothelial cell adhesion molecules of the immunoglobulin superfamily ) . These molecules have been validated as therapeutic targets for Q9UKU7 ; several have shown efficacy , and 2 have been approved by the Food and Drug Administration for treatment of Q9UKU7 . DB00108 , the first anti-integrin antibody tested for treatment of Q9UKU7 , blocks the α4 subunit . Although it is effective , its clinical use has been limited by its association with risk of progressive multifocal leukoencephalopathy . Other , allegedly more selective drugs that affect leukocyte recruitment in the gastrointestinal tract have been developed or are under investigation and could increase safety . These include vedolizumab and
Q99217
REA
181 ( antibodies against α4β7 ) , etrolizumab ( anti-β 7 ) , and PF - 00547659 ( anti-mucosal vascular addressin cell adhesion molecule 1 ) . Other agents have been developed to block α4 ( the small molecule AJM 300 ) ,
P51686
REA
( the small molecule
DB05005
MEN
- B ) , and
P02778
REA
( the antibody eldelumab ) . We review the scientific rationale for inhibiting interactions between leukocytes and endothelial cells to reduce intestinal inflammation and analyze the clinical studies that have been performed to test these new molecules , with particular attention to safety . We propose an evidence-based clinical positioning of this class of drugs .
13
Spray drying tenofovir loaded mucoadhesive and pH-sensitive microspheres intended for HIV prevention . PURPOSE : To develop spray dried mucoadhesive and pH-sensitive microspheres ( MS ) based on polymethacrylate salt intended for vaginal delivery of tenofovir ( a model HIV microbicide ) and assess their critical biological responses . METHODS : The formulation variables and process parameters are screened and optimized using a 2 ( 4-1 ) fractional factorial design . The MS are characterized for size , zeta potential , yield , encapsulation efficiency , Carr ' s index , drug loading , in vitro release , cytotoxicity , inflammatory responses and mucoadhesion . RESULTS : The optimal MS formulation has an average size of 4.73 μm , zeta potential of -26.3 mV , 68.9 % yield , encapsulation efficiency of 88.7 % , Carr ' s index of 28.3 and drug loading of 2 % ( w / w ) . The MS formulation release 91.7 % of its payload in the presence of simulated human semen . At a concentration of 1mg / ml , the MS are noncytotoxic to vaginal endocervical / epithelial cells and Lactobacillus crispatus when compared to control media . There is also no statistically significant level of inflammatory cytokine ( IL1 - α , IL - 1β ,
P05231
REA
,
P10145
REA
, and
P02778
REA
) release triggered by these MS . Their percent mucoadhesion is 2 - fold higher than that of 1 %
O14777
REA
gel formulation . CONCLUSION : These data suggest the promise of using such MS as an alternative controlled microbicide delivery template by intravaginal route for HIV prevention .
14
An evidence based therapeutic approach to hereditary and acquired angioedema . PURPOSE OF REVIEW : Hereditary angioedema ( HAE ) due to
P05155
REA
(
DB05341
MEN
) deficiency ( HAE -
DB05341
MEN
) , HAE with normal
DB05341
MEN
, and acquired angioedema due to
DB05341
MEN
deficiency are rare but important diseases that can be associated with significant morbidity and mortality . Research into the pathogenesis of angioedema has expanded greatly and has led to new clinical trials with novel therapeutic agents and strategies . RECENT FINDINGS : Strategies for managing HAE -
DB05341
MEN
are aimed at treating acute attacks or preventing attacks through the use of prophylactic treatment . Agents available in Europe for treating acute attacks include plasma-derived
DB05341
MEN
concentrates , a bradykinin B2 receptor (
P30411
REA
) antagonist , and a recombinant human
DB05341
MEN
. In the USA , a plasma-derived
DB05341
MEN
concentrate , a bradykinin
P30411
REA
antagonist , and a plasma kallikrein inhibitor have been approved for the treatment of acute HAE -
DB05341
MEN
attacks .
DB05341
MEN
concentrates and attenuated androgens are used for short-term prophylactic treatment . Long-term prophylactic treatments include attenuated androgens , a plasma-derived
DB05341
MEN
concentrate , and antifibrinolytics . Plasma-derived
DB05341
MEN
and a bradykinin
P30411
REA
antagonist are approved for self-administration at home . SUMMARY : The number of management options for HAE -
DB05341
MEN
and similar conditions has increased considerably within the last few years , thus helping to alleviate the burden of these rare diseases .
15
Development of a novel , fully-automated genotyping system : principle and applications . Genetic testing prior to treatment , pharmacogenetic analysis , is key to realizing personalized medicine which is a topic that has attracted much attention recently . Through the optimization of therapy selection and dosage , a reduction in side effects is expected . Genetic testing has been conducted as a type of pharmacogenetic analysis in recent years , but it faces challenges in terms of cost effectiveness and its complicated procedures . Here we report on the development of a novel platform for genetic testing , the i-densy ™ , with the use of quenching probe system ( QP-system ) as principle of mutant detection . The i-densy ™ automatically performs pre-treatment , PCR and detection to provide the test result from whole blood and extracted DNA within approximately 90 and 60 min , respectively . Integration of all steps into a single platform greatly reduces test time and complicated procedures . An even higher-precision genetic analysis has been achieved through the development of novel and highly-specific detection methods . The applications of items measured using the i-densy ™ are diverse , from single nucleotide polymorphism ( SNP ) , such as
P33261
REA
and
P22309
REA
, to somatic mutations associated with cancer , such as
P00533
REA
,
P01116
REA
and
O60674
REA
. The i-densy ™ is a useful tool for optimization of anticancer drug therapy and can contribute to personalized medicine .
16
A multicenter , open-label , prospective , randomized , dose-ranging pharmacokinetic study of the anti -
P01375
REA
antibody afelimomab in patients with sepsis syndrome . OBJECTIVE : To investigate the pharmacokinetics and safety of afelimomab , a murine antibody fragment against human tumor necrosis factor (
P01375
REA
) - alpha in patients with sepsis . DESIGN : Multicenter , randomized , open-label , placebo-controlled phase I / II clinical trial . SETTING : Intensive care units of six academic medical centers in the United States . PATIENTS : Forty-eight patients with a clinical diagnosis of sepsis who received standard supportive care and antimicrobial therapy . INTERVENTIONS : Patients received 0.3 , 1.0 , or 3.0 mg / kg afelimomab or placebo intravenously over 20 min . Three patients in each dose group received single doses ; the remaining nine patients in each group received multiple ( nine ) doses at 8 - h intervals over 72 h . MEASUREMENTS AND MAIN RESULTS :
DB04956
MEN
appeared safe and well tolerated . Single - and multiple-dose kinetics were predictable and dose related . The elimination half-life was 44.7 h .
DB04956
MEN
treatment resulted in increased serum concentrations of
P01375
REA
( includes
P01375
REA
- antibody complexes ) and decreased serum interleukin - 6 concentrations , whereas no discernible trends were observed in placebo-treated patients . There was no significant treatment effect on 28 - day mortality as was expected given the small number of patients . However , overall mortality was significantly ( p = 0.001 ) associated with baseline interleukin - 6 concentration . All patients experienced adverse events , but the vast majority were considered unrelated to the study drug and demonstrated no apparent relationship to afelimomab dose . Although 41 % of patients developed human anti-murine antibodies , there were no clinical sequelae . CONCLUSIONS : Multidose therapy with afelimomab was safe , well tolerated , and had predictable linear kinetics . A large randomized trial comparing afelimomab to placebo in patients with well defined sepsis has recently been completed .
17
SAR and in vivo evaluation of 4 - aryl - 2 - aminoalkylpyrimidines as potent and selective
O60674
REA
(
O60674
REA
) inhibitors . We report the discovery of a series of 4 - aryl - 2 - aminoalkylpyrimidine derivatives as potent and selective
O60674
REA
inhibitors . High throughput screening of our in-house compound library led to the identification of hit 1 , from which optimization resulted in the discovery of highly potent and selective
O60674
REA
inhibitors . Advanced lead 10d demonstrated a significant dose-dependent pharmacodynamic and antitumor effect in a mouse xenograft model . Based upon the desirable profile of 10d (
DB05243
MEN
) it was advanced into clinical trials .
18
Anti-oxidant and anti-inflammatory mechanisms of amlodipine action to improve endothelial cell dysfunction induced by irreversibly glycated LDL . Amlodipine , alone or in combination with other drugs , was successfully used to treat hypertension . Our aim was to evaluate the potential of amlodipine ( Am ) to restore endothelial dysfunction induced by irreversibly glycated low density lipoproteins (
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REA
- LDL ) , an in vitro model mimicking the diabetic condition . Human endothelial cells (
O14777
REA
) from EA . hy926 line were incubated with
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- LDL in the presence / absence of Am and the oxidative and inflammatory status of the cells was evaluated along with the p38 MAPK and NF-κB signalling pathways . The cellular NADPH activity , 4 - hydroxynonenal ( 4 - HNE ) and 3 - nitrotyrosine levels in the culture medium and the adhesion of human monocytes to
O14777
REA
were measured by chemiluminescence , UHPLC , Western Blot and spectrofluorimetric techniques . The gene expression of NADPH subunits (
O75935
REA
( phox ) , Q9NPH5 ) ,
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and inflammatory molecules (
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,
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REA
) were determined by Real Time PCR , while the protein expression of
O75935
REA
( phox ) ,
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REA
,
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REA
, phospho-p 38 MAPK and phospho-p 65 NF-κB subunit were measured by Western Blot . Results showed that in
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REA
incubated with
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- LDL , Am led to : ( i ) decrease of the oxidative stress : by reducing
O75935
REA
( phox ) , Q9NPH5 ,
P35228
REA
expression , NADPH oxidase activity , 4 - HNE and 3 - nitrotyrosine levels ; ( ii ) decrease of the inflammatory stress : by the reduction of
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REA
and
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REA
expression , as well as of the number of monocytes adhered to
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; ( iii ) inhibition of ROS-sensitive signalling pathways : by decreasing phosphorylation of p38 MAPK and p65 NF-κB subunits . In conclusion , the reported data demonstrate that amlodipine may improve endothelial dysfunction in diabetes through anti-oxidant and anti-inflammatory mechanisms .