Petar M. Mitrasinovic

Learn More
Since 2003, highly pathogenic H5N1 influenza viruses have been the cause of large-scale death in poultry and the subsequent infection and death of over 140 humans. At present, there are only three licensed anti-Influenza drugs namely Relenza (Zanamivir - ZMV), Tamiflu (Oseltamivir - OTV) and Amantadine/Rimantadine. The latter targets the M2 ion channel(More)
Molecular mechanisms for the gamma-ionizing radiation (IR) resistance of human prostate cancer cells, PC-3, are not quite clear. Since the low-LET-IR effects are primarily manifested by the generation of reactive oxygen species (ROS), the IR-induced expressions both of ROS-metabolizing antioxidant enzymes, such as Mn- and CuZn superoxide dismutases (SODs)(More)
The structure-based design of novel H5N1 neuraminidase inhibitors is currently a research topic of vital importance owing to both a recent pandemic threat by the worldwide spread of H5N1 avian influenza and the high resistance of H5N1 virus to the most widely used commercial drug, oseltamivir-OTV (Tamiflu). A specific criterion used in this work for(More)
In the context of a recent pandemic threat by the worldwide spread of H5N1 avian influenza, the high resistance of H5N1 virus to the most widely used commercial drug, oseltamivir (Tamiflu), is currently an important research topic. Herein, molecular bases of the mechanism of H5N1 NA resistance to oseltamivir were elucidated using a computational approach in(More)
The potential of flavonoids to act as anti-tumor agents has been recognized but not fully understood because flavonoids are acting at several stages in cancer progression with distinct structure-function relationships. A whole family of structurally different flavonoids is herein described by reviewing some critical aspects of their pro-oxidant behavior in(More)
As experimentally observed in gamma-irradiated aqueous solutions of tryptophan-containing peptides in the presence of DNA, a fast electron (or hydrogen atom) transfer from the DNA restores an intact tryptophan residue at the expense of the DNA integrity. Alternatively, addition of the deprotonated electron-deficient indolyl radical to the DNA, followed by(More)
RNA structure can be viewed as both a construct composed of various structural motifs and a flexible polymer that is substantially influenced by its environment. In this light, the present paper represents an attempt to reconcile the two standpoints. By using the 3D structures both of four (16S and 23S) portions of unbound 50S, H50S, and T30S ribosomal(More)
The whole family of structurally distinct flavonoids has been recognized as a valuable source of prospective anticancer agents. There is experimental evidence demonstrating that some flavonoids, like flavopiridol (FLP) and quercetin (QUE), bind to DNA influencing their key physiological function. FLP is involved in the combined mode of interaction(More)
Epidermal growth factor receptors (EGFRs) belong to the ErbB family of receptor tyrosine kinases (TKs) involved in the proliferation of normal and malignant cells. As mutations and overexpression of ErbB TKs are implicated in carcinoma and glioblastoma and are related to both a very strong resistance to chemotherapy and a poor survival means that ErbB(More)
In our previous study, a protein engineering approach, accounting for the effects of single point mutations of the binding site residues on the stability of 22 thiazolo[4,5-d]pyrimidines in complex with the intracellular kinase domain of EGFR (PDB ID: 1XKK), was established in a systematic manner to be an efficient strategy for the identification of(More)