Publications: Pharmaceutics

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
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. [...]

Differential Effect of Membrane Composition on the Pore-Forming Ability of Four Different Sea Anemone Actinoporins

Publication year: 2016
Authors: García-Linares S. 1, 2, Rivera-de-Torre E. 1, Morante K. 3, Tsumoto K. 3, Caaveiro J.M.M. 3, Gavilanes J.G. 1, Slotte J.P. 2, Martínez-del-Pozo A. 1
Published in: Biochemistry, 2016, Vol. 55 (48), p. 6630–6641
Sea anemone actinoporins constitute a protein family of multigene pore-forming toxins (PFT). Equinatoxin II (EqtII), fragaceatoxin C (FraC), and sticholysins I and II (StnI and StnII, respectively), produced by three different sea anemone species, are the only actinoporins [...]

Real-Time Label-Free Monitoring of Nanoparticle Cell Uptake

Publication year: 2016
Authors: Suutari T. 1, Silen T. 1, S.en Karaman D. 2,3, Saari H. 1, Desai D. 2, Kerkelä E. 4, Laitinen S. 4, Hanzlikova M. 1, Rosenholm J.M. 2, Yliperttula M. 1,5, Viitala T. 6
Published in: Small
The surface plasmon resonance technique in combination with whole cell sensing is used for the first time for real-time label-free monitoring of nanoparticle cell uptake. The uptake kinetics of several types of nanoparticles [...]

Optimization of lipodisk properties by modification of the extent and density of the PEG corona

Publication year: 2016
Authors: Zetterberg M.M. 1, Ahlgren S. 1, Agmo Hernández V. 1, Parveen N. 2, Edwards K. 1
Published in: Journal of Colloid and Interface Science, Vol. 484 (2016), p. 86–96
Lipodisks are nanosized flat, circular, phospholipid bilayers that are edge-stabilized by polyethylene glycol-conjugated lipids (PEG-lipids). Over the last decade, lipodisks stabilized [...]

Surfaces Mimicking Glycosaminoglycans Trigger Different Response of Stem Cells via Distinct Fibronectin Adsorption and Reorganization

Publication year: 2016
Authors: Araújo A.R. 1,2, Soares da Costa D. 1,2, Amorim S. 1.2, Reis R.L. 1,2, Pires R.A. 1,2 Pashkuleva I. 1,2
Published in: ACS Applied Materials & Interfaces, 2016, Vol. 8 (42), p. 28428–28436
We report on the utility of a platform created by self-assembled monolayers to investigate the influence of the degree of sulfation of glycosaminoglycans (GAGs) on their interactions with fibronectin (Fn) and the impact [...]