User profiles for P. Honkakoski

Paavo Honkakoski

University of Eastern Finland, School of Pharmacy
Verified email at uef.fi
Cited by 9331

Inhibition and induction of human cytochrome P450 enzymes: current status

O Pelkonen, M Turpeinen, J Hakkola, P Honkakoski… - Archives of …, 2008 - Springer
Variability of drug metabolism, especially that of the most important phase I enzymes or
cytochrome P450 (CYP) enzymes, is an important complicating factor in many areas of …

Regulation of cytochrome P450 (CYP) genes by nuclear receptors

P Honkakoski, M Negishi - Biochemical Journal, 2000 - portlandpress.com
… To whom correspondence should be addressed (e-mail paavo.honkakoski!uku.fi). …
Polyaromatic hydrocarbons such as 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) induce CYP1A and …

Drug-activated nuclear receptors CAR and PXR

P Honkakoski, T Sueyoshi, M Negishi - Annals of medicine, 2003 - Taylor & Francis
… Negishi M, Honkakoski P. Induction of drug metabolism by nuclear receptor CAR:
molecular mechanisms and implications for drug research. Eur J Pharm Sci 2000; 11: 259ą64. …

[HTML][HTML] The repressed nuclear receptor CAR responds to phenobarbital in activating the human CYP2B6 gene

T Sueyoshi, T Kawamoto, I Zelko, P Honkakoski… - Journal of Biological …, 1999 - ASBMB
The endogenous CYP2B6 gene becomes phenobarbital (PB) inducible in androstenol-treated
HepG2 cells either transiently or stably transfected with a nuclear receptor CAR …

The Nuclear Orphan Receptor CAR-Retinoid X Receptor Heterodimer Activates the Phenobarbital-Responsive Enhancer Module of the CYP2B Gene

P Honkakoski, I Zelko, T Sueyoshi… - Molecular and cellular …, 1998 - Taylor & Francis
PBREM, the phenobarbital-responsive enhancer module of the cytochrome P-450 Cyp2b10
gene, contains two potential nuclear receptor binding sites, NR1 and NR2. Consistent with …

[HTML][HTML] Extracellular glycosaminoglycans modify cellular trafficking of lipoplexes and polyplexes

M Ruponen, S Rönkkö, P Honkakoski… - Journal of Biological …, 2001 - ASBMB
It has been shown that extracellular glycosaminoglycans (GAGs) limit the gene transfer by
cationic lipids and polymers. The purpose of this study was to clarify how interactions with …

Extracellular and intracellular barriers in non-viral gene delivery

M Ruponen, P Honkakoski, S Rönkkö… - Journal of controlled …, 2003 - Elsevier
Complexes of DNA with cationic lipids and cationic polymers are frequently used for gene
transfer. Extracellular interactions of the complexes with anionic glycosaminoglycans (GAGs) …

Substrates and inhibitors of efflux proteins interfere with the MTT assay in cells and may lead to underestimation of drug toxicity

KS Vellonen, P Honkakoski, A Urtti - European journal of pharmaceutical …, 2004 - Elsevier
P-glycoprotein is an efflux transporter encoded by the multidrug resistance gene (MDR1).
It was first found in tumour cells (Tanigawara, 2000) but is expressed at significant levels also …

[HTML][HTML] Characterization of a phenobarbital-responsive enhancer module in mouse P450 Cyp2b10 gene

P Honkakoski, M Negishi - Journal of Biological Chemistry, 1997 - ASBMB
… We found that NFI and C/EBPα could bind to 32 P-labeled pC element in gel shift assays
since antibodies raised against these transcription factors were able to supershift some of the …

Towards personalized medicine with a three-dimensional micro-scale perfusion-based two-chamber tissue model system

…, J Zhang, B Lin, G Foltz, J Küblbeck, P Honkakoski - Biomaterials, 2012 - Elsevier
… The significance was considered when p < 0.05. A p-value larger than 0.05 (p > 0.05) was
taken … Without metabolism, the toxicity of IFO to GBM cells was considerably weaker (p < 0.01). …