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End date: 2024 × DDC: 610 × Subject: cold physical plasma × Subject: reactive oxygen species ×

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    Therapeutic ROS and Immunity in Cancer-The TRIC-21 Meeting
    (Basel : MDPI, 2021) Bekeschus, Sander; Emmert, Steffen; Clemen, Ramona; Boeckmann, Lars
    The first Therapeutic ROS and Immunity in Cancer (TRIC) meeting was organized by the excellence research center ZIK plasmatis (with its previous Frontiers in Redox Biochemistry and Medicine (FiRBaM) and Young Professionals' Workshop in Plasma Medicine (YPWPM) workshop series in Northern Germany) and the excellence research program ONKOTHER-H (Rostock/Greifswald, Germany). The meeting showcased cutting-edge research and liberated discussions on the application of therapeutic ROS and immunology in cancer treatment, primarily focusing on gas plasma technology. The 2-day hybrid meeting took place in Greifswald and online from 15-16 July 2021, facilitating a wide range of participants totaling 66 scientists from 12 countries and 5 continents. The meeting aimed at bringing together researchers from a variety of disciplines, including chemists, biochemists, biologists, engineers, immunologists, physicists, and physicians for interdisciplinary discussions on using therapeutic ROS and medical gas plasma technology in cancer therapy with the four main sessions: "Plasma, Cancer, Immunity", "Plasma combination therapies", "Plasma risk assessment and patients studies", and "Plasma mechanisms and treated liquids in cancer". This conference report outlines the abstracts of attending scientists submitted to this meeting.
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    Plasma-Treated Solutions (PTS) in Cancer Therapy
    (Basel : MDPI, 2021) Tanaka, Hiromasa; Bekeschus, Sander; Yan, Dayun; Hori, Masaru; Keidar, Michael; Laroussi, Mounir
    Cold physical plasma is a partially ionized gas generating various reactive oxygen and nitrogen species (ROS/RNS) simultaneously. ROS/RNS have therapeutic effects when applied to cells and tissues either directly from the plasma or via exposure to solutions that have been treated beforehand using plasma processes. This review addresses the challenges and opportunities of plasma-treated solutions (PTSs) for cancer treatment. These PTSs include plasma-treated cell culture media in experimental research as well as clinically approved solutions such as saline and Ringer’s lactate, which, in principle, already qualify for testing in therapeutic settings. Several types of cancers were found to succumb to the toxic action of PTSs, suggesting a broad mechanism of action based on the tumor-toxic activity of ROS/RNS stored in these solutions. Moreover, it is indi-cated that the PTS has immuno-stimulatory properties. Two different routes of application are cur-rently envisaged in the clinical setting. One is direct injection into the bulk tumor, and the other is lavage in patients suffering from peritoneal carcinomatosis adjuvant to standard chemotherapy. While many promising results have been achieved so far, several obstacles, such as the standardized generation of large volumes of sterile PTS, remain to be addressed. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.