TY - JOUR A1 - Radivoievych, Aleksandar A1 - Schnepel, Sophia A1 - Prylutska, Svitlana A1 - Ritter, Uwe A1 - Zolk, Oliver A1 - Frohme, Marcus A1 - Grebinyk, Anna T1 - From 2D to 3D In Vitro World: Sonodynamically-Induced Prooxidant Proapoptotic Effects of C60-Berberine Nanocomplex on Cancer Cells JF - Cancers N2 - Recently, sonodynamic therapy (SDT) has emerged as a promising non-invasive approach for treating cancer by activating sensitizers with ultrasound (US). In this context, we investigated C60 fullerene (C60) as a nanocarrier for the promising drug Berberine (Ber)—both potential aromatic sonosensitizers. The preferential mitochondrial accumulation of C60 and the proapoptotic effects of Ber also make the C60-Berberine nanocomplex (C60-Ber) a good candidate for direct induction of the intrinsic apoptotic cell death under US action. The in vitro research on C60-Ber can provide insights into novel, non-invasive cancer treatments. These findings lead to the development of targeted therapies with reduced side effects, inspire interdisciplinary collaboration, and open new avenues for drug delivery and cancer therapy research. KW - berberine KW - C60 fullerene KW - apoptosis KW - sonodynamic therapy KW - ultrasound Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:526-opus4-19438 VL - 16 IS - 18 ER - TY - JOUR A1 - Radivoievych, Aleksandar A1 - Prylutska, Svitlana A1 - Zolk, Oliver A1 - Ritter, Uwe A1 - Frohme, Marcus A1 - Grebinyk, Anna T1 - Comparison of Sonodynamic Treatment Set-Ups for Cancer Cells with Organic Sonosensitizers and Nanosonosensitizers JF - Pharmaceutics N2 - Cancer sonodynamic therapy (SDT) is the therapeutic strategy of a high-frequency ultrasound (US) combined with a special sonosensitizer that becomes cytotoxic upon US exposure. The growing number of newly discovered sonosensitizers and custom US in vitro treatment solutions push the SDT field into a need for systemic studies and reproducible in vitro experimental set-ups. In the current research, we aimed to compare two of the most used and suitable SDT in vitro set-ups—“sealed well” and “transducer in well”—in one systematic study. We assessed US pressure, intensity, and temperature distribution in wells under US irradiation. Treatment efficacy was evaluated for both set-ups towards cancer cell lines of different origins, treated with two promising sonosensitizer candidates—carbon nanoparticle C60 fullerene (C60) and herbal alkaloid berberine. C60 was found to exhibit higher sonotoxicity toward cancer cells than berberine. The higher efficacy of sonodynamic treatment with a “transducer in well” set-up than a “sealed well” set-up underlined its promising application for SDT in vitro studies. The “transducer in well” set-up is recommended for in vitro US treatment investigations based on its US-field homogeneity and pronounced cellular effects. Moreover, SDT with C60 and berberine could be exploited as a promising combinative approach for cancer treatment. KW - ultrasound KW - C60 fullerene KW - berberine KW - sonodynamic therapy KW - apoptosis Y1 - 2023 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:526-opus4-18223 SN - 1999-4923 VL - 15 IS - 11 PB - MDPI ER - TY - JOUR A1 - Radivoievych, Aleksandar A1 - Kolp, Benjamin A1 - Grebinyk, Sergii A1 - Prylutska, Svitlana A1 - Ritter, Uwe A1 - Zolk, Oliver A1 - Glökler, Jörn A1 - Frohme, Marcus A1 - Grebinyk, Anna T1 - Silent Death by Sound: C60 Fullerene Sonodynamic Treatment of Cancer Cells JF - International Journal of Molecular Sciences N2 - The acoustic pressure waves of ultrasound (US) not only penetrate biological tissues deeper than light, but they also generate light emission, termed sonoluminescence. This promoted the idea of its use as an alternative energy source for photosensitizer excitation. Pristine C60 fullerene (C60), an excellent photosensitizer, was explored in the frame of cancer sonodynamic therapy (SDT). For that purpose, we analyzed C60 effects on human cervix carcinoma HeLa cells in combination with a low-intensity US treatment. The time-dependent accumulation of C60 in HeLa cells reached its maximum at 24 h (800 ± 66 ng/106 cells). Half of extranuclear C60 is localized within mitochondria. The efficiency of the C60 nanostructure’s sonoexcitation with 1 MHz US was tested with cell-based assays. A significant proapoptotic sonotoxic effect of C60 was found for HeLa cells. C60′s ability to induce apoptosis of carcinoma cells after sonoexcitation with US provides a promising novel approach for cancer treatment. KW - ultrasound KW - C60 fullerene KW - sonodynamic therapy KW - HeLa cells KW - apoptosis Y1 - 2023 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:526-opus4-16877 SN - 1422-0067 VL - 24 IS - 2 PB - MDPI ER - TY - JOUR A1 - Prylutska, Svitlana A1 - Grynyuk, I. A1 - Grebinyk, Anna A1 - Hurmach, V. A1 - Shatrava, Iu. A1 - Sliva, T. A1 - Amirkhanov, Volodymyr A1 - Prylutskyy, Yuriy A1 - Matyshevska, Olga A1 - Slobodyanik, M. A1 - Frohme, Marcus A1 - Ritter, Uwe T1 - Cytotoxic Effects of Dimorfolido-N-Trichloroacetylphosphorylamide and Dimorfolido-N-Benzoylphosphorylamide in Combination with C60 Fullerene on Leukemic Cells and Docking Study of Their Interaction with DNA JF - Nanoscale Research Letters N2 - Dimorfolido-N-trichloroacetylphosphorylamide (HL1) and dimorfolido-N-benzoylphosphorylamide (HL2) as representatives of carbacylamidophosphates were synthesized and identified by the methods of IR, 1H, and 31P NMR spectroscopy. In vitro HL1 and HL2 at 1 mM concentration caused cell specific and time-dependent decrease of leukemic cell viability. Compounds caused the similar gradual decrease of Jurkat cells viability at 72 h (by 35%). HL1 had earlier and more profound toxic effect as compared to HL2 regardless on leukemic cell line. Viability of Molt-16 and CCRF-CEM cells under the action of HL1 was decreased at 24 h (by 32 and 45%, respectively) with no substantial further reducing up to 72 h. Toxic effect of HL2 was detected only at 72 h of incubation of Jurkat and Molt-16 cells (cell viability was decreased by 40 and 45%, respectively). It was shown that C60 fullerene enhanced the toxic effect of HL2 on leukemic cells. Viability of Jurkat and CCRF-CEM cells at combined action of C60 fullerene and HL2 was decreased at 72 h (by 20 and 24%, respectively) in comparison with the effect of HL2 taken separately. In silico study showed that HL1 and HL2 can interact with DNA and form complexes with DNA both separately and in combination with C60 fullerene. More stable complexes are formed when DNA interacts with HL1 or C60 + HL2 structure. Strong stacking interactions can be formed between HL2 and C60 fullerene. Differences in the types of identified bonds and ways of binding can determine distinction in cytotoxic effects of studied compounds. KW - dimorfolido-N-trichloroacetylphosphorylamide KW - dimorfolido-N-benzoylphosphorylamide KW - C60 fullerene KW - leukemic cell KW - DNA KW - computer modeling Y1 - 2017 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:526-opus4-9273 SN - 1556-276X VL - 12 IS - 124 ER - TY - JOUR A1 - Prylutska, Svitlana A1 - Grebinyk, Anna A1 - Ponomarenko, Stanislav A1 - Gövem, Defne A1 - Chumachenko, Vasyl A1 - Kutsevol, Nataliya A1 - Petrovsky, Mykola A1 - Ritter, Uwe A1 - Frohme, Marcus A1 - Piosik, Jacek A1 - Prylutskyy, Yuriy T1 - Toxicity of Water-Soluble D-g-PNIPAM Polymers in a Complex with Chemotherapy Drugs and Mechanism of Their Action In Vitro JF - International Journal of Molecular Sciences N2 - The application of a biocompatible polymer nanocarrier can provide target delivery to tumor tissues, improved pharmacokinetics, controlled drug release, etc. Therefore, the proposed strategy was to use the water-soluble star-like copolymers with a Dextran core and Poly(N-isopropylacrylamide) grafts (D-g-PNIPAM) for conjugation with the widely used chemotherapy drugs in oncology–Cisplatin (Cis-Pt) and Doxorubicin (Dox). The molecular characteristics of the copolymer were received using size-exclusion chromatography. The physicochemical characterization of the D-g-PNIPAM-Cis-Pt (or Dox) nanosystem was conducted using dynamic light scattering and FTIR spectroscopy. Using traditional biochemical methods, a comparative analysis of the enhancement of the cytotoxic effect of free Cis-Pt and Dox in combination with D-g-PNIPAM copolymers was performed in cancer cells of the Lewis lung carcinoma line, which are both sensitive and resistant to Dox; in addition, the mechanism of their action in vitro was evaluated. KW - star-like copolymer KW - drug KW - Lewis lung carcinoma KW - cytotoxicity Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:526-opus4-18790 SN - 1422-0067 VL - 25 IS - 5 PB - MDPI ER - TY - JOUR A1 - Li, Xiangkun A1 - Amirkhanyan, Zohrab A1 - Grebinyk, Anna A1 - Gross, Matthias A1 - Komar, Yuliia A1 - Riemer, Felix A1 - Asoyan, Aida A1 - Boonpornprasert, Prach A1 - Borchert, Paul A1 - Davtyan, Hakob A1 - Dmytriiev, Dmytro A1 - Frohme, Marcus A1 - Hoffmann, Andreas A1 - Krasilnikov, Mikhail A1 - Loisch, Gregor A1 - Lotfi, Zahra A1 - Müller, Frieder A1 - Schmitz, Michael A1 - Obier, Frank A1 - Oppelt, Anne A1 - Philipp, Sebastian A1 - Richard, Christopher A1 - Vashchenko, Grygorii A1 - Villani, Daniel A1 - Worm, Steven A1 - Stephan, Frank T1 - Demonstration of ultra-high dose rate electron irradiation at FLASHlab@PITZ JF - Physics in Medicine & Biology N2 - Objective. The photo injector test facility at DESY in Zeuthen (PITZ) is building up an R&D platform, known as FLASHlab@PITZ, for systematically studying the FLASH effect in cancer treatment with its high-brightness electron beams, which can provide a uniquely large dose parameter range for radiation experiments. In this paper, we demonstrate the capabilities by experiments with a reduced parameter range on a startup beamline and study the potential performance of the full beamline by simulations. Approach. To measure the dose, Gafchromic films are installed both in front of and after the samples; Monte Carlo simulations are conducted to predict the dose distribution during beam preparation and help understand the dose distribution inside the sample. Plasmid DNA is irradiated under various doses at conventional and ultra-high dose rate (UHDR) to study the DNA damage by radiations. Start-to-end simulations are performed to verify the performance of the full beamline. Main results. On the startup beamline, reproducible irradiation has been established with optimized electron beams and the delivered dose distributions have been measured with Gafchromic films and compared to FLUKA simulations. The functionality of this setup has been further demonstrated in biochemical experiments at conventional dose rate of 0.05 Gy s−1 and UHDR of several 105 Gy s−1 and a varying dose up to 60 Gy, with the UHDR experiments finished within a single RF pulse (less than 1 millisecond); the observed conformation yields of the irradiated plasmid DNA revealed its dose-dependent radiation damage. The upgrade to the full FLASHlab@PITZ beamline is justified by simulations with homogeneous radiation fields generated by both pencil beam scanning and scattering beams. Significance. With the demonstration of UHDR irradiation and the simulated performance of the new beamline, FLASHlab@PITZ will serve as a powerful platform for studying the FLASH effects in cancer treatment. KW - ultra-high dose rate KW - FLASH effect KW - electron beams KW - FLASHlab@PITZ Y1 - 2025 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:526-opus4-20092 VL - 70 IS - 5 PB - Institute of Physics Publishing (IOP) ER - TY - CHAP A1 - Li, Xiangkun A1 - Amirkhanyan, Zohrab A1 - Aftab, Namra A1 - Boonpornprasert, Prach A1 - Dmytriiev, Dmytro A1 - Frohme, Marcus A1 - Georgiev, Georgi A1 - Grebinyk, Anna A1 - Gross, Matthias A1 - Hoffmann, Andreas A1 - Komar, Yuliia A1 - Krasilnikov, Mikhail A1 - Loisch, Gregor A1 - Oppelt, Anne A1 - Richard, Christopher A1 - Riemer, F. A1 - Philipp, Sebastian A1 - Schmitz, Michael A1 - Müller, Frieder A1 - Obier, Frank A1 - Vashchenko, Grygorii A1 - Worm, Steven A1 - Stephan, Frank T1 - Overview of FLASHlab@PITZ: the new R&D platform for FLASH radiation therapy and radiation biology T2 - Journal of Physics: Conference Series, Volume 2687, Applications of Accelerators, Technology Transfer and Industrial Relations and Outreach N2 - An R&D platform for electron FLASH radiation therapy and radiation biology is being prepared at the Photo Injector Test facility at DESY in Zeuthen (FLASHlab@PITZ). This platform is based on the unique beam parameters available at PITZ: ps scale electron bunches of up to 22 MeV with up to 5 nC bunch charge at MHz bunch repetition rate in bunch trains of up to 1 ms in length repeating at 1 to 10 Hz. It works together with the Technical University of Applied Sciences Wildau (TH Wildau) as partner in close vicinity for the biological resources. A startup beamline has been installed to allow dosimetry studies and irradiation experiments on chemical, biochemical and biological samples after a 60-degree dispersive arm. The measured dose and dose rates under different beam conditions and first experimental results will be reported in this paper. In addition, a dedicated beamline for FLASHlab@PITZhas been designed for better control of the high brightness electron beams. This includes a dogleg to translate the beam and a 2D kicker system to scan the tiny beam focused by quadrupoles across the samples within less than 1 ms. Simulation studies will be presented to demonstrate the extremely flexible dose parameters with various irradiation options for electron FLASH radiation therapy and radiation biology studies. Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:526-opus4-18474 VL - 2687 PB - Institute of Physics Publishing (IOP) ER - TY - CHAP A1 - Krasilnikov, Mikhail A1 - Aboulbanine, Zakaria A1 - Adhikari, Gowri A1 - Aftab, Namra A1 - Asoyan, Aida A1 - Davtyan, Hakob A1 - Georgiev, Georgi A1 - Good, James A1 - Grebinyk, Anna A1 - Gross, Matthias A1 - Hoffmann, Andreas A1 - Kongmon, Ekkachai A1 - Li, Xiangkun A1 - Lueangaramwong, Anusorn A1 - Melkumyan, David A1 - Mohanty, Sandeep A1 - Niemczyk, Raffael A1 - Oppelt, Anne A1 - Qian, Houjun A1 - Richard, Christopher A1 - Schneidmiller, Evgeny A1 - Stephan, Frank A1 - Vashchenko, Grygorii ED - Istituto Nazionale Di Fisca Nucleare, T1 - THz SASE FEL at PITZ: lasing at a wavelength of 100μm T2 - IPAC'23 : 14th International Particle Accelerator Conference, 7-12 May 2023, Venice, Italy : proceedings N2 - Development of an accelerator-based tunable THz source prototype for pump-probe experiments at the European XFEL is ongoing at the Photo Injector Test facility at DESY in Zeuthen (PITZ). The proof-of-principle experiments on the THz SASE FEL are performed utilizing the LCLS-I undulator installed in the PITZ beamline. The first lasing at a center wavelength of 100 µm was observed in the summer of 2022. The lasing of the narrowband THz source was achieved using an electron beam with an energy of ~17 MeV and a bunch charge up to several nC. Optimization of beam transport and matching resulted in the measurement of THz radiation with a pulse energy of tens of µJ, measured with pyroelectric detectors. The THz FEL gain curves were measured by means of specially designed short coils along the undulator. The results of the first characterization of the THz source at PITZ will be presented. Y1 - 2023 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:526-opus4-21113 SP - 3948 EP - 3951 PB - JACoW Publishing ER - TY - CHAP A1 - Gross, Matthias A1 - Kuhl, Thorsten A1 - Stephan, Frank A1 - Li, Xiangkun A1 - Philipp, Sebastian A1 - Grebinyk, Anna A1 - Khachatryan, Vitali A1 - Qian, Houjun A1 - Aboulbanine, Zakaria A1 - Amirkhanyan, Zohrab A1 - Riemer, Felix A1 - Oppelt, Anne A1 - Krasilnikov, Mikhail ED - Istituto Nazionale Di Fisca Nucleare, T1 - A beam line setup for flash radiation therapy with focused electron beams at the Pitz facility at DESY in Zeuthen: basic concept and dosimetry simulations T2 - IPAC'23 : 14th International Particle Accelerator Conference, 7-12 May 2023, Venice, Italy : proceedings N2 - The aim of this work is to demonstrate the principal possibility to enhance the electron beam dose deposition in the depth of the sample for radiation therapy purposes. Trains of electron bunches of 22 MeV generated at PITZ are focused inside the sample using a dedicated fast deflector and a solenoid magnet. To explore the capabilities of the proposed setup, dose distributions are calculated for multiple electron bunches focused in a single point inside a water phantom. Electron beam focusing produces dose peaks with a tunable maximal dose depth which is interesting for healthy tissue sparing at the surface and enhancing treatment quality. The duration of the full bunch train is 1 ms. During this time interval, the FLASH effect could be efficiently triggered inside the irradiated target volume. Monte Carlo simulations based on the FLUKA code were performed to evaluate the depth dose curves distributions in a water phantom. Using the PITZ electron beam parameters, simulations have shown the possibility to produce a peak dose in water seven times higher than compared to the dose at the surface. Moreover, the RMS size homogeneous area around the maximal dose is approximately 25 mm. Y1 - 2023 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:526-opus4-21132 SP - 5000 EP - 5003 PB - JACoW Publishing ER - TY - CHAP A1 - Gross, Matthias A1 - Hoffmann, Andreas A1 - Georgiev, Georgi A1 - Kuhl, Thorsten A1 - Li, Xiangkun A1 - Oppelt, Anne A1 - Boonpornprasert, Prach A1 - Philipp, Sebastian A1 - Grebinyk, Anna A1 - Vashchenko, Grygorii A1 - Aftab, Namra A1 - Adhikari, Gowri A1 - Richard, Christopher A1 - Stephan, Frank A1 - Khachatryan, Vitali A1 - Riemer, Felix A1 - Krasilnikov, Mikhail A1 - Amirkhanyan, Zohrab ED - Istituto Nazionale Di Fisca Nucleare, T1 - Comparison of measurements and simulation results of dose for the FLASH radiation therapy beamline at PITZ T2 - IPAC'23 : 14th International Particle Accelerator Conference, 7-12 May 2023, Venice, Italy : proceedings N2 - The high-brightness electron beam at the Photo Injector Test facility at DESY in Zeuthen (PITZ) is now also used for FLASHlab@PITZ: an R&D platform for studying radiation biology and the FLASH effect in radiation therapy. The available parameter space of the electron beam with a momentum of 22 MeV/c allows bunch charges from 10 pC up to 5nC, bunch durations of 0.1–60ps, and bunch train lengths up to 1 ms. The number of bunches in the single train can currently be varied between 1 and 1000 bunches, with an upgrade to 4500 foreseen in 2023. Radiation biology studies require accurate dose prediction, therefore Monte Carlo simulations based on the FLUKA code were performed. According to estimations, dose delivery of 0.002 Gy (low charge case 0.1pC) and 10Gy (high charge case 5nC) is possible, if the beam is confined to a circular area with a radius of 5 mm with a lead collimator. For the Monte Carlo simulations, the experimental setup was accurately modeled, including the exit window, lead collimator, etc. Dose measurements were used to compare simulations with experiments. Dose profiles were experimentally measured with Gafchromic films and then compared with Monte Carlo simulations. The first experiments at FLASHlab@PITZ in 2023 have demonstrated flexible dose options for studying the FLASH effect and radiation biology studies. Y1 - 2023 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:526-opus4-21126 SP - 4996 EP - 4999 PB - JACoW Publishing ER -