Publications: Pharmaceutics


Topovectorial mechanisms control the juxtamembrane proteolytic processing of Nrf1 to remove its N-terminal polypeptides during maturation of the CNC-bZIP factor

Authors: Xiang Y. 1, Halin J. 2, Fan Z. 1, Hu S. 1, Wang M. 1, Qiu L. 1, Zhang Z. 3, Mattjus P. 2, Zhang Y. 1
Published in: bioRxiv, 2018
The topobiological behaviour of Nrf1 dictates its post-translational modification and its ability to transactivate target genes. Here, we have elucidated that topovectorial mechanisms control [...]

Membrane bound COMT isoform is an interfacial enzyme: general mechanism and new drug design paradigm

Authors: Magarkar A. a,b, Parkkila P. a, Viitala T. a, Lajunen T. a, Mobarak E. c,d, Licari G. e, Cramariuc O. c, Vauthey E. e , Rógc T. d, Bunker A.* a
Published in: Chemical Communications, 2018, Vol. 54, Issue 28, p. 3440-3443
The enzyme catechol-O-methyltransferase (COMT) has water soluble (S-COMT) and membrane associated (MB-COMT), bitopic, isoforms. Of these MB-COMT is a drug target [...]

Interaction of lecithin-cholesterol acyltransferase with lipid surfaces and apolipoprotein A-I derived peptides

Publication year: 2018
Authors: Casteleijn M. G., Parkkila P., Viitala T., Koivuniemi A.
Published in: Journal of Lipid Research, 2018
Lecithin-cholesterol acyltransferase (LCAT) is an enzyme responsible for the formation of cholesteryl esters from unesterified cholesterol (UE) and phospholipid (PL) molecules in high-density lipoprotein (HDL) particles. [...]

Hydrazone crosslinked hyaluronan-based hydrogels for therapeutic delivery of adipose stem cells to treat corneal defects

Publication year: 2018
Authors: Koivusalo L. a, Karvinen J. e, Sorsa E. b, Jönkkäri I. c, Väliaho J. b, Kallio P. b, Ilmarinen T. a, Miettinen S. a, Skottman H. a, Kellomäki M. a, b
Published in: Materials Science and Engineering: C, Vol. 85, 2018, p. 68–78
Corneal blindness is a worldwide problem, plagued by insufficient amount of high-quality donor tissue. Cell therapy using human adipose stem cells (hASCs) has risen as an alternative [...]

Oligomerization Alters Binding Affinity Between Amyloid Beta and a Modulator of Peptide Aggregation

Publication year: 2017
Authors: Hilt S. 1, Rojalin T. 2, 3, Viitala T. 3, Koivuniemi A.3, Bunker A. 3, Wachsmann-Hogiu S. 2, 4, Kálai T. 5, Hideg K. 5, Yliperttula M. 3, 6, Voss J. C. 1
Published in: The Journal of Physical Chemistry C, 2017, Vol. 121 (43), p. 23974–23987
The soluble oligomeric form of the amyloid beta (Aβ) peptide is the major causative agent in the molecular pathogenesis of Alzheimer’s disease (AD). We have previously developed a pyrroline-nitroxyl fluorene compound (SLF) that blocks [...]

Differential Effect of Bilayer Thickness on Sticholysin Activity

Publication year: 2017
Authors: Palacios-Ortega J. 1, 2, García-Linares S. 1, 2, Rivera-de-Torre E. 1, Gavilanes J.G. 1, Martínez-del-Pozo A. 1, Slotte J.P. 2
Published in: Langmuir, 2017, Vol. 33 (41), p. 11018–11027
In this study, we examined the influence of bilayer thickness on the activity of the actinoporin toxins sticholysin I and II (StnI and StnII) at 25 °C. Bilayer thickness was varied using dimonounsaturated phosphatidylcholine (PC) analogues [...]

Binding Kinetics and Lateral Mobility of HSV-1 on End-Grafted Sulfated Glycosaminoglycans

Publication year: 2017
Authors: Peerboom N. 1, Block S. 2, Altgärde N. 1, Wahlsten O. 1, Möller S. 3, Schnabelrauch M. 3, Trybala E. 4, Bergström T. 4, Bally M. 5
Published in: Biophysics Journal, 2017, Vol. 113, Issue 6, p. 1223-1234
Many viruses, including herpes simplex (HSV), are recruited to their host cells via interaction between their envelope glycoproteins and cell-surface glycosaminoglycans (GAGs). This initial attachment [...]

Interaction of Solid Lipid Nanoparticles and Specific Proteins of the Corona Studied by Surface Plasmon Resonance

Publication year: 2017
Authors: Mauricio E. Di Ianni 1, Germán A. Islan 2, Cecilia Y. Chain 3, Guillermo R. Castro 2, Alan Talevi 1, María E. Vela 3
Published in: Journal of Nanomaterials, Vol. 2017, 11 pages
The applications of pharmaceutical and medical nanosystems are among the most intensively investigated fields in nanotechnology. A relevant point to be considered in the design and development [...]

Surface plasmon resonance and molecular docking studies of bovine serum albumin interaction with neomycin: kinetic and thermodynamic analysis

Publication year: 2017
Authors: Sharifi M. 1, Dolatabadi J.E.N. 2, Fathi F. 2,3, Zakariazadeh M. 4, Barzegar A. 4, Rashidi M. 2, Tajalli H. 1, Rashidi M.-R. 2
Published in: BioImpacts, 2017, Vol. 7(2), p. 91–97
Introduction: The interactions between biomacromolecules such as serum albumin (SA) and various drugs have attracted increasing research attention in recent years. [...]

Glycotriazole-peptides derived from the peptide HSP1: synergistic effect of triazole and saccharide rings on the antifungal activity

Publication year: 2017
Authors: Junior E.F.C. 1, Guimarães C.F.R.C. 2, Franco L.L. 3, Alves R.J. 3, Kato K.C. 4, Martins H.R. 4, de Souza Filho J.D. 2, Bemquerer M.P. 5, Munhoz V.H.O. 6, Resende J.M. 2, Verly R.M. 7
Published in: Amino Acids, 2017, Vol. 49(8), p. 1389-1400
This work proposes a strategy that uses solid-phase peptide synthesis associated with copper(I)-catalyzed azide alkyne cycloaddition reaction to promote the glycosylation of an antimicrobial peptide (HSP1) [...]

Angiogenic and Restorative Abilities of Human Mesenchymal Stem Cells Were Reduced Following Treatment With Serum From Diabetes Mellitus Type 2 Patients

Publication year: 2017
Authors: Rezaie J. 1, Mehranjani M.S. 1, Rahbarghazi R. 2,3, Shariatzadeh M.A. 1
Published in: Journal of Cellular Biochemistry, 2017, 9999, p. 1-12
This experiment investigated the impact of serum from patients with type 2 diabetes mellitus on the angiogenic behavior of human mesenchymal stem cells in vitro. Changes in the level [...]

Detachment of Membrane Bound Virions by Competitive Ligand Binding Induced Receptor Depletion

Publication year: 2017
Authors: Parveen N. 1, Block S. 1, Zhdanov V.P. 1,2, Rydell G.E. 3, Höök F. 1
Published in: Langmuir, 2017, Vol. 33 (16), p. 4049–4056
Multivalent receptor-mediated interactions between virions and a lipid membrane can be weakened using competitive nonpathogenic ligand binding. In particular, the subsequent binding [...]

Targeting Tumor-Associated Exosomes with Integrin-Binding Peptides

Publication year: 2017
Authors: Carney R.P. 1, Hazari S. 1, Rojalin T. 2,3, Knudson A. 1, Gao T. 3,4, Tang Y. 3,4, Liu R. 1, Viitala T. 5, Yliperttula M. 5,6, Lam K.S. 1,7
Published in: Advanced Biosystems, 2017, Vol. 1 (5), p. 1600038
All cells expel a variety of nanosized extracellular vesicles (EVs), including exosomes, with composition reflecting the cells' biological state. Cancer pathology is dramatically mediated by EV trafficking [...]

Breast Cancer Targeting Peptide Binds Keratin 1: A New Molecular Marker for Targeted Drug Delivery to Breast Cancer

Publication year: 2017
Authors: Soudy R. 1,2,5, Etayash H. 1, Bahadorani K.1, Lavasanifar A. 1,3, Kaur K. 1,4
Published in: Molecular Pharmaceutics, 2017, Vol. 14 (3), p. 593–604
The biomarkers or receptors expressed on cancer cells and the targeting ligands with high binding affinity for biomarkers play a key role in early detection and treatment of breast cancer. [...]

Surface Plasmon Resonance for Measuring Exocytosis from Populations of PC12 Cells: Mechanisms of Signal Formation and Assessment of Analytical Capabilities

Publication year: 2017
Authors: Moreira B. 1, Tuoriniemi J. 1, Kouchak Pour N. 1, Mihalčíková L.1, Safina G. 1,2
Published in: Analytical Chemistry, 2017, Vol. 89 (5), p. 3069–3077
Because of cell to cell variation, it is difficult to obtain statistically significant data on the frequency of exocytosis events (Rexocytosis, t–1 m–2) with traditional single cell electrophysiological [...]

Raman Spectrocopy and surface plasmon resonance as photonic tools for biopharmaceutical applications

Publication year: 2016
Authors: Rojalin Tatu
Published in: Doctoral dissertation (article-based), University of Helsinki
Biophotonics is an emerging area of scientific research that uses light of photons to probe biological specimens, such as tissues, cells and molecules. The field of biophotonics is broad and considerably multidisciplinary. [...]

Kinetic and thermodynamic study of bovine serum albumin interaction with rifampicin using surface plasmon resonance and molecular docking methods

Publication year: 2017
Authors: Sharifi M. 1, Dolatabadi J.E. 2, Fathi F. 3, Rashidi M. 2, Jafari B. 4, Tajalli H. 1, Rashidi M.R. 2
Published in: Journal of Biomedical Optics, 2017, Vol. 22(3), p.
The interaction of bovine serum albumin (BSA) with various drugs, such as antibiotics, due to the importance of BSA in drug delivery has attracted increasing research attention at present. [...]

Endothelial cells' biophysical, biochemical, and chromosomal aberrancies in high ‐ glucose condition within the diabetic range

Publication year: 2017
Authors: Rezabakhsh A. 1,2, Nabat E. 2,3, Yousefi M. 4, Montazersaheb S. 2,5, Cheraghi O. 6, Mehdizadeh A. 7, Fathi F.8, Movassaghpour A.A. 9, Maleki-DIzaji N. 10, Rahbarghazi R. 2,11, Garjani A. 1,2,10
Published in: Cell Biochemistry & Function, 2017, p. 1-15
To date, many studies have been conducted to find out the underlying mechanisms of hyperglycemia-induced complications in diabetes mellitus, attributed to the cellular pathologies of different cells[...]

Taste masking effect of chlorogenic acid (CGA) on bitter drugs evaluated by taste sensor and surface plasmon resonance on the basis of CGA-Drug interactions

Publication year: 2017
Authors: Shiraishi S.1, Haraguchi T., Nakamura S., Li D., Kojima H., Yoshida M., Uchida T.
Published in: Chemical and Pharmaceutical Bulletin, Vol. 65 (2017), No. 2, p. 127-13
The purpose of this study was to evaluate the taste-masking effects of chlorogenic acid (CGA) on bitter drugs using taste sensor measurements and surface plasmon resonance (SPR) analysis of CGA-drug interactions. [...]

Role of the Tryptophan Residues in the Specific Interaction of the Sea Anemone Stichodactyla helianthus’s Actinoporin Sticholysin II with Biological Membranes

Publication year: 2016
Authors: García-Linares S. 1, 2, Maula T. 2, Rivera-de-Torre E. 1, Gavilanes J.G. 1, Slotte J.P. 2, Martínez-del-Pozo A. 1
Published in: Biochemistry, 2016, Vol. 55 (46), p. 6406–6420
Actinoporins are pore-forming toxins from sea anemones. Upon interaction with sphingomyelin-containing bilayers, they become integral oligomeric membrane structures that form a pore. [...]