Goracinova, Katerina
Preferred name
Goracinova, Katerina
Official Name
Goracinova, Katerina
Translated Name
Gorachinova, Katerina
Main Affiliation
Email
kago@ff.ukim.edu.mk
Researcher ID
H-8486-2013
10 results
Now showing 1 - 10 of 10
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Item type:Publication, Rational development of nanomedicines for molecular targeting in periodontal disease(Elsevier BV, 2018-09); ;Sazdovska, Simona Dimchevska ;Gjosheva, Silvana; Recent advances in understanding the etiology and pathogenesis of periodontal disease and polymicrobial synergy in the dysbiotic oral microbial community endorsed novel therapeutic targets and assured further improvement in periodontal disease treatment. Moreover, understanding of the events at the molecular level inspired the researchers to alleviate the stress from the disease by applying the bottom-up approach and delivering the drugs at the site of action, using nanoscale medicines. This review is focused on promising strategies for rational design of nanopaharmaceuticals for periodontal disease treatment based on novel therapeutic targets and the potential of advanced concepts for inflammation cascade targeting. Due to their size, nanomedicines are capable to interact with the elements of the immune system through cell receptor binding and to subsequently influence specific intracellular signaling pathways activation. They might also interfere with different signaling molecules continuously involved in the disease progression, in order to abolish cell activation and block the production of proinflammatory substances. Different biomacromolecules can be trafficked to the site of action using nanomedicines for gene targeting: i) decoy oligodeoxynucleotide (ODN) for suppression of NF-κB transcription activity, ii) DNA therapeutics for modulation of cell inflammatory response and iii) siRNA for cytokine production silencing. However, despite the potential of the nanotechnology for improvement of periodontal disease treatment, the translation of nano-drug delivery systems to clinical therapy is hindered by the lack of standard procedures for proper safety and efficacy profile evaluation. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, 3D printed extended-release hydrochlorothiazide tablets(Elsevier BV, 2025-03-01) ;Tasevska, Teodora ;Adamov, Ivana; ;Ibrić, SvetlanaIn this study 3D printed tablets (printlets) with extended release of hydrochlorothiazide (HHT) as model active ingredient were designed and developed. Four formulations, F0.1SSE, F1SSE, F0.1DLP and F1DLP, have been manufactured and characterized, using non-typical semi-solid extrusion (SSE) with UV light solidification and digital light processing (DLP) techniques. Obtained rheological studies pointed out to F1SSE and F1DLP as more suitable for SSE and DLP printing, respectively. Photopolymerization process between photopolymer (PEGDA) and photoinitiator (DPPO; 0.1% and 1%) was investigated using FTIR, with PCA modeling utilized to analyze spectral variations over time and estimate crosslinking kinetics. SSE printlets averaged ∼6.5 mm in diameter, ∼3 mm in height and ∼110 mg in mass, while DLP printlets averaged ∼8.5 mm in diameter, ∼2.5 mm in height, with masses of ∼170 mg (F0.1DLP) and ∼220 mg (F1DLP). All four formulations complied to the requirements of European pharmacopeia for uniformity of dosage units of single dose preparations. In vitro release studies indicated extended-release profiles in both 0.1M Hydrochloric acid (HCl) and phosphate buffer pH 6.8 for SSE and DLP printlets. The release kinetics of HHT from the printlets were modeled to fit First order, Higuchi, Korsmeyer-Peppas and Hixson-Crowell equations and the most probable ones were determined based on the R2 values and Akaike information criterion. FTIR and Raman spectroscopic analyses of printlets confirmed the presence of characteristic peaks from both, HHT and excipients, as well as modifications in bonds due to the photopolymeric reaction. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Design and biological response of doxycycline loaded chitosan microparticles for periodontal disease treatment(Elsevier BV, 2018-04-15) ;Gjoseva, Silvana; ;Sazdovska, Simona Dimchevska ;Popeski-Dimovski, RistePetruševski, GjorgjiThe aim of this study was to develop chitosan (CS) microparticulated mucoadhesive drug delivery system (DDS) with improved therapeutic performance and biological responce. Ionotropic gelation/spray drying process was used for preparation of doxycycline hyclate (DOXY) loaded low and medium molecular weight (LMw and MMw) CS/sodium tripolyphosphate microparticles (CS/TPP MPs), further coated with ethyl cellulose (EC) using coacervation/solvent displacement technique. The relevant physico-chemical and biopharmaceutical properties were optimized using experimental design approach. Both coated and uncoated CS/TPP MPs showed high mucoadhesive potential and did not affect the viability of the tested epithelial cell line. The MPs induced slow and gradual apoptotic response in murine macrophage cell line RAW 264.7 and the observed effect depended upon formulation type and MP concentration. Biological effect of the CS-based MPs observed in our experiments point to synergism of the biological response of the carrier with the anti-inflammatory effect of DOXY. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, ORMOSIL nanoparticles as drug delivery carriers for oxaliplatin: formulation development and characterization(Springer Science and Business Media LLC, 2024-06-17) ;Djurdjic, Beti; ;Boev, Ivan; - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Reduced Cardiotoxicity of Ponatinib-Loaded PLGA-PEG-PLGA Nanoparticles in Zebrafish Xenograft Model(MDPI, 2022-06-02) ;Al-Thani, Hissa F ;Shurbaji, Samar ;Zakaria, Zain Zaki ;Hasan, Maram HTyrosine kinase inhibitors (TKIs) are the new generation of anti-cancer drugs with high potential against cancer cells' proliferation and growth. However, TKIs are associated with severe cardiotoxicity, limiting their clinical value. One TKI that has been developed recently but not explored much is Ponatinib. The use of nanoparticles (NPs) as a better therapeutic agent to deliver anti-cancer drugs and reduce their cardiotoxicity has been recently considered. In this study, with the aim to reduce Ponatinib cardiotoxicity, Poly(D,L-lactide-co-glycolide)-b-poly(ethyleneoxide)-b-poly(D,L-lactide-co-glycolide) (PLGA-PEG-PLGA) triblock copolymer was used to synthesize Ponatinib in loaded PLGA-PEG-PLGA NPs for chronic myeloid leukemia (CML) treatment. In addition to physicochemical NPs characterization (NPs shape, size, size distribution, surface charge, dissolution rate, drug content, and efficacy of encapsulation) the efficacy and safety of these drug-delivery systems were assessed in vivo using zebrafish. Zebrafish are a powerful animal model for investigating the cardiotoxicity associated with anti-cancer drugs such as TKIs, to determine the optimum concentration of smart NPs with the least side effects, and to generate a xenograft model of several cancer types. Therefore, the cardiotoxicity of unloaded and drug-loaded PLGA-PEG-PLGA NPs was studied using the zebrafish model by measuring the survival rate and cardiac function parameters, and therapeutic concentration for in vivo efficacy studies was optimized in an in vivo setting. Further, the efficacy of drug-loaded PLGA-PEG-PLGA NPs was tested on the zebrafish cancer xenograft model, in which human myelogenous leukemia cell line K562 was transplanted into zebrafish embryos. Our results demonstrated that the Ponatinib-loaded PLGA-PEG-PLGA NPs at a concentration of 0.001 mg/mL are non-toxic/non-cardio-toxic in the studied zebrafish xenograft model. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Nanotechnology - a robust tool for fighting the challenges of drug resistance in non-small cell lung cancer(BEILSTEIN INSTITUT, 2023-02-22) ;Gorachinov, Filip ;Mraiche, Fatima ;Moustafa, Diala Alhaj ;Hishari, OlaIsmail, YomnaGenomic and proteomic mutation analysis is the standard of care for selecting candidates for therapies with tyrosine kinase inhibitors against the human epidermal growth factor receptor (EGFR TKI therapies) and further monitoring cancer treatment efficacy and cancer development. Acquired resistance due to various genetic aberrations is an unavoidable problem during EGFR TKI therapy, leading to the rapid exhaustion of standard molecularly targeted therapeutic options against mutant variants. Attacking multiple molecular targets within one or several signaling pathways by co-delivery of multiple agents is a viable strategy for overcoming and preventing resistance to EGFR TKIs. However, because of the difference in pharmacokinetics among agents, combined therapies may not effectively reach their targets. The obstacles regarding the simultaneous co-delivery of therapeutic agents at the site of action can be overcome using nanomedicine as a platform and nanotools as delivery agents. Precision oncology research to identify targetable biomarkers and optimize tumor homing agents, hand in hand with designing multifunctional and multistage nanocarriers that respond to the inherent heterogeneity of the tumors, may resolve the challenges of inadequate tumor localization, improve intracellular internalization, and bring advantages over conventional nanocarriers. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Micro-Raman Spectroscopy for Detection of Label-Free and Oil Red O Labeled PEGylated Nanoliposomes in hCmec/D3 Cell Internalization Studies(Croatian Chemical Society, 2022-12) ;Gorachinov, Filip; ;Shalabalija, Dushko ;Mihailova Ljubica - Some of the metrics are blocked by yourconsent settings
Item type:Publication, The role of intellectual property rights and package safety features in the prevention of counterfeit medicines(Centre for Evaluation in Education and Science (CEON/CEES), 2020-12) ;Ančevska-Netkovska, Katerina; ; ; Petrovska-Jakimovska, BiljanaThe fast growth of counterfeiting medicines in the last two decades has created one of the biggest problems facing the pharmaceutical industry on the global level, resulting in loss of income, product withdrawal, loss of brand value, etc. But this is not only the problem of the intellectual property rights of the pharmaceutical industry, it is also the problem of the healthcare regulatory authorities, whose most significant concern is the risk to the public health. Pharmaceutical manufacturers, together with the wholesalers and retailers, have an essential role in the fight against counterfeit medicines by the implementation of different anti-counterfeit technologies for securing the supply-chain of medicines. The protection of drug packaging has a specific role in the drug development process, as well as in the fight against counterfeit medicine. The authenticity of the medicine and the forensic elements for protection on the packaging may be confirmed using different technologies. Tracking and tracing of pharmaceutical products in the supply chain, keeping electronic records for all stages of the distribution, and verification of the authenticity of a medicinal product is a key element and an effective solution for timely detection of counterfeit medicines and protection of intellectual property rights. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Comparative Modeling Approaches in the Development and Evaluation of Silica Nanoparticles as 5-Fluorouracil Carriers using PLS, DoE and GBR(Springer Science and Business Media LLC, 2025-11-24) ;Djurdjic, Beti; ;Dimkovska, Teodora; - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Comparative Modeling Approaches in the Development and Evaluation of Silica Nanoparticles as 5-Fluorouracil Carriers using PLS, DoE and GBR(Springer Science and Business Media LLC, 2025-11-24) ;Djurdjic, Beti; ;Dimkovska, Teodora;
