A. Zyubin, I. Alekseenko, I. Samusev, S. Babak, M. Demin, V. Bryukhanov
{"title":"Laser induced cell death stages investigation by Raman spectroscopy","authors":"A. Zyubin, I. Alekseenko, I. Samusev, S. Babak, M. Demin, V. Bryukhanov","doi":"10.1109/PIERS.2017.8261707","DOIUrl":null,"url":null,"abstract":"In this paper we perform results of laser induced apoptosis and necrosis stages study in live rats cancer cells. Induction of cell death was carried out at various conditions of laser power and time exposure. Stages of apoptosis were controlled by optical microscopy. During cell death process, Raman spectra of apoptotic and necrotic cells were registered at Centaur U HR science unit equipped with 532 diode laser. We focused on detection signal intensity level and Raman bands position as markers of cell death stages. Both single cancer cells and cells groups were investigated using Raman scattering spectroscopy. Applicability of noninvasive Raman spectroscopy was shown for identification of cell death stages.","PeriodicalId":387984,"journal":{"name":"2017 Progress In Electromagnetics Research Symposium - Spring (PIERS)","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2017-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2017 Progress In Electromagnetics Research Symposium - Spring (PIERS)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/PIERS.2017.8261707","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
In this paper we perform results of laser induced apoptosis and necrosis stages study in live rats cancer cells. Induction of cell death was carried out at various conditions of laser power and time exposure. Stages of apoptosis were controlled by optical microscopy. During cell death process, Raman spectra of apoptotic and necrotic cells were registered at Centaur U HR science unit equipped with 532 diode laser. We focused on detection signal intensity level and Raman bands position as markers of cell death stages. Both single cancer cells and cells groups were investigated using Raman scattering spectroscopy. Applicability of noninvasive Raman spectroscopy was shown for identification of cell death stages.
本文对活体大鼠肿瘤细胞进行了激光诱导凋亡和坏死分期的研究。在不同的激光功率和时间照射条件下诱导细胞死亡。光镜下观察细胞凋亡分期。在细胞死亡过程中,在配备532二极管激光器的Centaur U HR科学单元上记录了凋亡细胞和坏死细胞的拉曼光谱。我们的重点是检测信号强度水平和拉曼波段的位置作为细胞死亡阶段的标志。用拉曼散射光谱对单个癌细胞和细胞群进行了研究。无创拉曼光谱的适用性证明了细胞死亡阶段的鉴定。