Publications by authors named "Albert Jan Aarnoudse"

13 Publications

  • Page 1 of 1

A NOS1AP gene variant is associated with a paradoxical increase of the QT-interval shortening effect of digoxin.

Pharmacogenomics J 2021 Oct 6. Epub 2021 Oct 6.

Department of Epidemiology, Erasmus Medical Center, Rotterdam, The Netherlands.

Digoxin is characterized by a small therapeutic window and a QT-interval shortening effect. Moreover, it has been shown that the genetic variants of the nitric oxide synthase-1 adaptor protein (NOS1AP) gene are associated with QT-interval prolongation. We investigated whether the rs10494366 variant of the NOS1AP gene decreases the QT-interval shortening effect of digoxin in patients using this drug. We included 10,057 individuals from the prospective population-based cohort of the Rotterdam Study during a median of 12.2 (interquartile range (IQR) 6.7-18.1) years of follow-up. At study entry, the mean age was 64 years and almost 59% of participants were women. A total of 23,179 ECGs were longitudinally recorded, of which 334 ECGs were from 249 individuals on digoxin therapy. The linear mixed model analysis was used to estimate the effect of the rs10494366 variant on the association between digoxin use and QT-interval duration, adjusted for age, sex, RR interval, diabetes, heart failure, and history of myocardial infarction. In non-users of digoxin, the GG genotype was associated with a significant 6.5 ms [95% confidence interval (CI) 5.5; 7.5] longer QT-interval duration than the TT variant. In current digoxin users, however, the GG variant was associated with a significantly -23.9 [95%CI -29.5; -18.5] ms shorter mean QT-interval duration than in those with the TT variant with -15.9 [95%CI -18.7; -13.1]. This reduction was strongest in the high digoxin dose category [≥0.250 mg/day] with the GG genotype group, with -40.8 [95%CI -52.5; -29.2] ms changes compared to non-users. Our study suggests that the minor homozygous GG genotype group of the NOS1AP gene rs10494366 variant is associated with a paradoxical increase of the QT-interval shortening effect of digoxin in a population of European ancestry.
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http://dx.doi.org/10.1038/s41397-021-00256-2DOI Listing
October 2021

Acute life-threatening hyperkalaemia in a patient with giant hydronephrosis: a case report.

BMJ Case Rep 2021 Apr 28;14(4). Epub 2021 Apr 28.

Department of Emergency Medicine, Catharina Hospital Eindhoven, Eindhoven, Netherlands.

A 52-year-old man with a history of urolithiasis presents to the emergency department with a sudden, sharp, continuous right flank colicky pain. Laboratory workup demonstrates acute kidney injury with a mild hyperkalaemia. During the observation period, the patient develops an atypical broad complex sinus bradycardia and eventually short asystolic periods. This was caused by a severe therapy-resistant hyperkalaemia, wherefore emergency haemodialysis was necessary. Radiographic results showed a giant hydronephrosis with a blowout of the right kidney and an obstructing calculi of 21 mm in the distal ureter. We will discuss the mechanism of reversed intraperitoneal dialysis causing the refractory hyperkalaemia and the need of close ECG monitoring in patients where kidney blowout is considered.
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http://dx.doi.org/10.1136/bcr-2020-240946DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8094328PMC
April 2021

Long-term sequelae of severe acute kidney injury in the critically ill patient without comorbidity: a retrospective cohort study.

PLoS One 2015 23;10(3):e0121482. Epub 2015 Mar 23.

Department of Internal Medicine, Division of Nephrology, Erasmus Medical Center, Rotterdam, The Netherlands.

Background And Objectives: Acute kidney injury (AKI) necessitating renal replacement therapy (RRT) is associated with high mortality and increased risk for end stage renal disease. However, it is unknown if this applies to patients with a preliminary unremarkable medical history. The purpose of this study was to describe overall and renal survival in critically ill patients with AKI necessitating RRT stratified by the presence of comorbidity.

Design, Setting, Participants, And Measurements: A retrospective cohort study was performed, between 1994 and 2010, including all adult critically ill patients with AKI necessitating RRT, stratified by the presence of comorbidity. Logistic regression, survival curve and cox proportional hazards analyses were used to evaluate overall and renal survival. Standardized mortality rate (SMR) analysis was performed to compare long-term survival to the predicted survival in the Dutch population.

Results: Of the 1067 patients included only 96(9.0%) had no comorbidity. Hospital mortality was 56.6% versus 43.8% in patients with and without comorbidity, respectively. In those who survived hospitalization 10-year survival was 45.0% and 86.0%, respectively. Adjusted for age, sex and year of treatment, absence of comorbidity was not associated with hospital mortality (OR=0.74, 95%-CI=0.47-1.15), while absence of comorbidity was associated with better long-term survival (adjusted HR=0.28, 95%-CI = 0.14-0.58). Compared to the Dutch population, patients without comorbidity had a similar mortality risk (SMR=1.6, 95%-CI=0.7-3.2), while this was increased in patients with comorbidity (SMR=4.8, 95%-CI=4.1-5.5). Regarding chronic dialysis dependency, 10-year renal survival rates were 76.0% and 92.9% in patients with and without comorbidity, respectively. Absence of comorbidity was associated with better renal survival (adjusted HR=0.24, 95%-CI=0.07-0.76).

Conclusions: While hospital mortality remains excessively high, the absence of comorbidity in critically ill patients with RRT-requiring AKI is associated with a relative good long-term prognosis in those who survive hospitalization.
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http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0121482PLOS
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4370474PMC
February 2016

Value of acute-phase reactants in monitoring disease activity and treatment response in idiopathic retroperitoneal fibrosis.

Nephrol Dial Transplant 2012 Jul 23;27(7):2819-25. Epub 2012 Jan 23.

Department of Nephrology, Albert Schweitzer Hospital, Dordrecht, The Netherlands.

Background: Prospective evaluation of the value of erythrocyte sedimentation rate (ESR) and C-reactive protein (CRP) levels in monitoring disease activity and treatment response in patients with idiopathic retroperitoneal fibrosis (RPF).

Methods: This study included 57 patients with idiopathic RPF receiving tamoxifen monotherapy with at least 8 months follow-up. Clinical, laboratory and radiological investigation was performed at presentation and at repeated follow-up. Remission was defined as significant clinical improvement within 6 weeks of treatment together with stable or decreasing mass size on follow-up computed tomography (CT) scanning at 4 months and definitive decrease in mass size on follow-up CT scanning at 8 months.

Results: ESR and CRP levels at presentation and their respective decreases over time correlated strongly with each other (P<0.001). Baseline ESR and CRP levels correlated with visual analogue scale (VAS) score for pain (ESR, P<0.01; CRP, P<0.001); baseline ESR levels also correlated with VAS score for discomfort (P<0.001). Short-term decreases in ESR or CRP levels at 6 weeks follow-up did not correlate with subsequent mass regression but decrease in ESR at 4 months and decrease in CRP at 4 and 8 months follow-up correlated with mass regression. Kaplan-Meier analysis showed no difference in remission rate between patients with normal or elevated baseline ESR or CRP (log-rank P=0.22/P=0.88) or between patients with or without (near-)normalization of ESR or CRP in first 6 weeks of treatment (log-rank P=0.12/P=0.32).

Conclusions: Patients with idiopathic RPF who have elevated acute-phase reactant levels are more symptomatic. Neither acute-phase reactant levels or their initial changes can be taken as a major predictor for treatment success.
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http://dx.doi.org/10.1093/ndt/gfr779DOI Listing
July 2012

The ETS family member TEL binds to nuclear receptors RAR and RXR and represses gene activation.

PLoS One 2011 16;6(9):e23620. Epub 2011 Sep 16.

Department of Pathology, Josephine Nefkens Institute, Erasmus MC, Rotterdam, The Netherlands.

Retinoic acid receptor (RAR) signaling is important for regulating transcriptional activity of genes involved in growth, differentiation, metabolism and reproduction. Defects in RAR signaling have been implicated in cancer. TEL, a member of the ETS family of transcription factors, is a DNA-binding transcriptional repressor. Here, we identify TEL as a transcriptional repressor of RAR signaling by its direct binding to both RAR and its dimerisation partner, the retinoid x receptor (RXR) in a ligand-independent fashion. TEL is found in two isoforms, created by the use of an alternative startcodon at amino acid 43. Although both isoforms bind to RAR and RXR in vitro and in vivo, the shorter form of TEL represses RAR signaling much more efficiently. Binding studies revealed that TEL binds closely to the DNA binding domain of RAR and that both Helix Loop Helix (HLH) and DNA binding domains of TEL are mandatory for interaction. We have shown that repression by TEL does not involve recruitment of histone deacetylases and suggest that polycomb group proteins participate in the process.
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http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0023620PLOS
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3174942PMC
March 2012

Calcium channel blockers, NOS1AP, and heart-rate-corrected QT prolongation.

Pharmacogenet Genomics 2009 Apr;19(4):260-6

Department of Epidemiology, Erasmus Medical Center, Rotterdam, The Netherlands.

Objectives: To study whether NOS1AP single nucleotide polymorphisms (SNPs), rs10494366 T>G and rs10918594 C>G, modify the heart-rate-corrected QT (QTc) prolonging effect of calcium channel blockers.

Background: Common variation in the NOS1AP gene has been associated with QT interval variation in several large population samples. NOS1 is presumed to influence intracellular calcium.

Methods: The prospective population-based Rotterdam Study includes 16 603 ECGs from 7565 participants (>or=55 years), after exclusion of patients with left ventricular hypertrophy, left and right bundle branch block, as well as carriers of pacemakers. The endpoint was the length of the QTc interval in calcium channel blocker users and non-users with the minor alleles compared with the major alleles (wild type). We used a repeated-measurement analysis, adjusted for all known confounders.

Results: Use of verapamil was associated with a significant QTc interval prolongation [6.0 ms 95% confidence interval (CI) 1.7; 10.2] compared with non-users. Furthermore, users of verapamil with the rs10494366 GG genotype showed significantly more QTc prolongation than users with the TT genotype [25.4 ms (95% CI: 5.9-44.9)] (P value for multiplicative interaction 0.0038). Users of isradipine with the GG genotype showed more QTc prolongation than users with the TT genotype [19.8 ms (95% CI: 1.9-37.7)]; however, SNP rs10494366 did not modify the effect on QTc interval on a multiplicative scale (P=0.3563). SNP rs10918594 showed similar results.

Conclusion: In conclusion, we showed that the minor alleles of both NOS1AP SNPs significantly potentiate the QTc prolonging effect of verapamil.
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http://dx.doi.org/10.1097/FPC.0b013e328324e556DOI Listing
April 2009

Psychotropic drugs associated with corrected QT interval prolongation.

J Clin Psychopharmacol 2009 Feb;29(1):9-15

Department of Epidemiology, Erasmus Medical Center, Rotterdam, the Netherlands.

Aims: To study whether listed putative corrected QT (QTc)-prolonging psychotropic drugs indeed prolong the QTc interval under everyday circumstances and to evaluate whether this is a class effect or an individual drug effect, we conducted a prospective population-based cohort study.

Methods: This study was conducted as part of the Rotterdam Study and included 3377 men and 4845 women (>or=55 years) who had triennial electrocardiograms (ECGs). The primary end points of the study were the length of the QTc interval at each ECG, the difference in QTc interval between consecutive ECGs within one person, and the risk of an abnormally prolonged QTc interval. Drug use at the index date was obtained from automated dispensing records. The associations were examined by means of a repeated measurement analysis, adjusted for age, sex, diabetes mellitus, hypertension, myocardial infarction, heart failure, and use of class 1 QTc-prolonging drugs.

Results: Of the 8222 participants, 813 participants (9.9%) developed QTc prolongation during follow-up and 492 participants (74.4% women) used psychotropic drugs at the time of an ECG. Starting tricyclic antidepressants increased the QTc interval significantly with 6.9 milliseconds (95% confidence interval [CI], 3.1-10.7 milliseconds) between consecutive ECGs in comparison with consecutive ECGs of participants not using tricyclic antidepressants, in particular starting amitriptyline (8.5 milliseconds; 95% CI, 2.8-14.2 milliseconds), maprotiline (13.9 milliseconds; 95% CI, 3.6-24.3 milliseconds), and nortriptyline (35.3 milliseconds; 95% CI, 8.0-62.6 milliseconds). Starting lithium also increased the QTc interval significantly (18.6 milliseconds; 95% CI, 4.8-32.4 milliseconds).

Conclusions: In this population-based prospective cohort study, we confirmed the importance of antidepressants and antipsychotics as potential contributors to QTc prolongation. Especially, starting tricyclic antidepressant drugs (as a class) is associated with a significant intraindividual increase in the QTc interval in comparison to the change in nonusers. The tricyclic antidepressants seem to prolong the QTc interval as a class effect.
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http://dx.doi.org/10.1097/JCP.0b013e318191c6a8DOI Listing
February 2009

C-reactive protein levels, haplotypes, and the risk of incident chronic obstructive pulmonary disease.

Am J Respir Crit Care Med 2009 Mar 18;179(5):375-82. Epub 2008 Dec 18.

Department of Respiratory Medicine, Ghent University and Ghent University Hospital, Ghent, Belgium.

Rationale: Chronic obstructive pulmonary disease (COPD) is characterized by substantial chronic inflammation in the pulmonary compartment as well as in the systemic circulation.

Objectives: To investigate potentially causal association, we examined whether serum levels of high-sensitivity C-reactive protein (hsCRP) and variations in the CRP gene are associated with the risk of developing COPD.

Methods: This study is part of the Rotterdam Study, a prospective population-based cohort study among subjects aged 55 years or older. At baseline, 6,836 subjects without COPD had a blood sample available for assessment of hsCRP serum levels and haplotypes of the CRP gene. We analyzed the association between hsCRP levels, CRP gene haplotypes, and incident COPD with Cox proportional hazard models, adjusted for age, sex, and other confounders.

Measurements And Main Results: High levels of hsCRP (>3 mg/L) were associated with a significantly increased risk of incident COPD (hazard ratio [HR], 1.7; 95% confidence interval [CI], 1.16-2.49) compared with persons with low levels (<1 mg/L). The risk remained increased after adjusting for potential confounders and introducing a latency period of 3 years. The risk was most pronounced in former smokers (HR, 2.2; 95% CI, 1.12-3.74). hsCRP was not a risk factor in never smokers. No CRP single nucleotide polymorphism or haplotype was associated with a significantly increased or decreased COPD risk.

Conclusions: Increased hsCRP levels are predictive for the occurrence of COPD in smokers. However, haplotypes of the CRP gene, which influence hsCRP levels, are not associated with an altered risk of developing COPD.
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http://dx.doi.org/10.1164/rccm.200810-1540OCDOI Listing
March 2009

Common variation in the NOS1AP gene is associated with reduced glucose-lowering effect and with increased mortality in users of sulfonylurea.

Pharmacogenet Genomics 2008 Jul;18(7):591-7

Department of Epidemiology and Biostatistics, Erasmus MC, Rotterdam, the Netherlands.

Objective: The single nucleotide polymorphism rs10494366 in the nitric oxide synthase 1 adaptor protein (NOS1AP) gene is associated with QTc prolongation, through an effect on the intracellular Ca levels. As sulfonylurea stimulate insulin secretion by an increased influx of Ca, we hypothesized that this polymorphism is associated with the glucose-lowering effect and mortality risk in sulfonylurea users.

Methods: Associations between the NOS1AP polymorphism, prescribed doses, and mortality rates in sulfonylurea, metformin, and insulin users were assessed in the Rotterdam Study, a population-based cohort study of 7983 elderly people.

Results: We identified 619 participants who were prescribed oral antidiabetic drugs during follow-up. In glibenclamide users carrying the TG genotype, the prescribed doses were higher compared with the glibenclamide users carrying the TT genotype [0.38 defined daily dose units, 95% confidence interval (CI) 0.14-0.63]. Glibenclamide users with the TG or GG genotype had an increased mortality risk compared with glibenclamide users with the TT genotype [hazard ratio (HR) 2.80, 95% CI: 1.09-7.22]. Tolbutamide users with the TG or GG genotype (HR: 0.30, 95% CI: 0.14-0.63) and glimepiride users with the TG or GG genotype (HR: 0.18, 95% CI: 0.04-0.74) had a decreased mortality risk compared with tolbutamide and glimepiride users with the TT genotype.

Conclusion: In participants with the TG or GG genotype at rs10494366 in the NOS1AP gene, glibenclamide is less effective in reducing glucose levels and mortality rates were higher compared with glibenclamide users with the TT genotype. In tolbutamide and glimepiride users, the TG and GG genotype were associated with a reduced mortality rate.
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http://dx.doi.org/10.1097/FPC.0b013e328300e8c5DOI Listing
July 2008

Common ATP-binding cassette B1 variants are associated with increased digoxin serum concentration.

Pharmacogenet Genomics 2008 Apr;18(4):299-305

Department of Epidemiology and Biostatistics, Erasmus Medical Centre, Rotterdam, The Netherlands.

Background And Objective: Digoxin is a known substrate of ATP-binding cassette B1 (ABCB1/MDR1). The results of studies on the association between ABCB1 polymorphisms and digoxin kinetics, however, remain contradictory. Almost all studies were small and involved only single dose kinetics. The goal of this study was to establish ABCB1 genotype effect on digoxin blood concentrations in a large cohort of chronic digoxin users in a general Dutch European population.

Methods: Digoxin users were identified in the Rotterdam Study, a prospective population-based cohort study of individuals aged 55 years and above. Digoxin blood levels were gathered from regional hospitals and laboratories. ABCB1 single nucleotide polymorphisms (SNPs) 1236C-->T, 2677G-->T/A, and 3435C-->T were assessed on peripheral blood DNA using Taqman assays. We studied the association between the ABCB1 genotypes and haplotypes, and digoxin blood levels using linear regression models adjusting for potential confounders.

Results: Digoxin serum levels and DNA were available for 195 participants (56.4% women, mean age 79.4 years). All three ABCB1 variants were significantly associated with serum digoxin concentration (0.18-0.21 microg/l per additional T allele). The association was even stronger for the 1236-2677-3435 TTT haplotype allele [0.26 mug/l (95% CI 0.14-0.38)], but absent for other haplotypes (CGC allele considered referent), suggesting an interaction of SNPs in a causal haplotype instead of individual SNP effects.

Conclusion: We found that the common ABCB1 1236C-->T, 2677G-->T, and 3435C-->T variants and the associated TTT haplotype were associated with higher digoxin serum concentrations in a cohort of elderly European digoxin users in the general population.
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http://dx.doi.org/10.1097/FPC.0b013e3282f70458DOI Listing
April 2008

Adverse drug reaction-related hospitalisations: a population-based cohort study.

Pharmacoepidemiol Drug Saf 2008 Apr;17(4):365-71

Pharmaco-Epidemiology Unit, Department of Epidemiology & Biostatistics, Erasmus University Medical Center, Rotterdam, The Netherlands.

Purpose: To evaluate the extent, characteristics and determinants of adverse drug reaction (ADR)-related hospitalisations on a population-based level in 2003.

Methods: We performed a cohort study in the Integrated Primary Care Information (IPCI) database, a general practitioners (GPs) research database with longitudinal data from electronic patient records of a group of 150 GP throughout the Netherlands. Hospital discharge letters and patient records were reviewed to evaluate ADR-related hospitalisations applying WHO causality criteria. The prevalence of ADR-related hospitalisations per total admissions and the incidence per drug group were calculated. Avoidability and seriousness of the ADRs causing admission were assessed applying the algorithm from Hallas.

Results: We identified 3515 hospital admissions, 1277 elective and 2238 acute. Of the acute admissions, 115 were caused by an ADR giving a prevalence of 5.1% (95% confidence intervals (CI): 4.3-6.1%). The prevalence of ADR-related acute admissions increased with age up to 9.8% (95%CI: 7.5-12.7) for persons >75 years. The ADRs that most frequently caused hospitalisations were gastro-intestinal bleeding with anti-thrombotics, bradycardia/hypotension with cardiovascular drugs and neutropenic fever with cytostatics. The incidence rate of ADR-related hospitalisations per drug group was highest for anti-thrombotics and anti-infectives and was relatively low for cardiovascular drugs. Fatality as a direct consequence of the ADR-related admission was 0.31%. In elderly patients 40% of the ADRs causing hospitalisation were judged to be avoidable.

Conclusions: The extent and potential avoidability of ADR-related hospitalisations is still substantial, especially in elderly patients. Measures need to be put into place to reduce the burden of ADRs.
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http://dx.doi.org/10.1002/pds.1565DOI Listing
April 2008

Common NOS1AP variants are associated with a prolonged QTc interval in the Rotterdam Study.

Circulation 2007 Jul 18;116(1):10-6. Epub 2007 Jun 18.

Department of Epidemiology and Biostatistics, Erasmus Medical Center, PO Box 2040, 3000 CA, Rotterdam, The Netherlands.

Background: QT prolongation is an important risk factor for sudden cardiac death. About 35% of QT-interval variation is heritable. In a recent genome-wide association study, a common variant (rs10494366) in the nitric oxide synthase 1 adaptor protein (NOS1AP) gene was found to be associated with QT-interval variation. We tested for association of 2 NOS1AP variants with QT duration and sudden cardiac death.

Methods And Results: The Rotterdam Study is a population-based, prospective cohort study of individuals > or = 55 years of age. The NOS1AP variants rs10494366 T>G and rs10918594 C>G were genotyped in 6571 individuals. Heart rate-corrected QT interval (QTc) was determined with ECG analysis software on up to 3 digital ECGs per individual (total, 11,108 ECGs from 5374 individuals). The association with QTc duration was estimated with repeated-measures analyses, and the association with sudden cardiac death was estimated by Cox proportional-hazards analyses. The rs10494366 G allele (36% frequency) was associated with a 3.8-ms (95% confidence interval, 3.0 to 4.6; P=7.8x10(-20)) increase in QTc interval duration for each additional allele copy, and the rs10918594 G allele (31% frequency) was associated with a 3.6-ms (95% confidence interval, 2.7 to 4.4; P=6.9x10(-17)) increase per additional allele copy. None of the inferred NOS1AP haplotypes showed a stronger effect than the individual single-nucleotide polymorphisms. There were 233 sudden cardiac deaths over 11.9 median years of follow-up. No significant association was observed with sudden cardiac death risk.

Conclusions: Common variants in NOS1AP are strongly associated with QT-interval duration in an elderly population. Larger sample sizes are needed to confirm or exclude an effect on sudden cardiac death risk.
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http://dx.doi.org/10.1161/CIRCULATIONAHA.106.676783DOI Listing
July 2007

The MN1 oncoprotein synergizes with coactivators RAC3 and p300 in RAR-RXR-mediated transcription.

Oncogene 2003 Feb;22(5):699-709

Department of Pathology, Erasmus University, Rotterdam, The Netherlands.

The t(12;22) creates an MN1-TEL fusion gene leading to acute myeloid leukemia. The fusion partner TEL (ETV6) is a member of the ETS family of transcription factors. The nature of the other fusion partner, MN1, has not been investigated in detail until now. We recently described that MN1 activates the transcription activity of the moloney sarcoma virus long terminal repeat, indicating that this protein itself may act as a transcription factor. We show here that MN1 comprises multiple transcription activating domains. A search for a bound DNA sequence revealed that MN1 has affinity for retinoic acid responsive elements. A DR5 retinoic acid responsive element was observed in the LTR. The combination of MN1 and ligand-activated retinoic acid receptor leads to a synergistic induction of expression directed by the LTR. Cotransfection of MN1 with RAC3 or p300, known coactivators of retinoic acid receptors, leads to a further synergistic induction of transcription. In addition, the effect of MN1 can be inhibited by the wild-type adenovirus ElA protein that inhibits p300 function, but not by an E1A mutant lacking the p300-binding site. GAL4-MN1-mediated transcription can be enhanced directly by RAC3 and p300. Taken together, our results indicate that MN1 is a transcription coactivator rather than a sequence-specific transcription factor, and that it may stimulate RAR/RXR-mediated transcription through interaction with p160 and p300.
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http://dx.doi.org/10.1038/sj.onc.1206124DOI Listing
February 2003
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