Research output: Contribution to journal › Article › peer-review
Experimental Study of Yeast RNA Preparation as a Possible Radioprotective Agent for Radiotherapy of Malignant Tumors. / Nikolin, V. P.; Bogachev, S. S.; Popova, N. A. et al.
In: Bulletin of Experimental Biology and Medicine, Vol. 163, No. 5, 01.09.2017, p. 639-642.Research output: Contribution to journal › Article › peer-review
}
TY - JOUR
T1 - Experimental Study of Yeast RNA Preparation as a Possible Radioprotective Agent for Radiotherapy of Malignant Tumors
AU - Nikolin, V. P.
AU - Bogachev, S. S.
AU - Popova, N. A.
AU - Tornuev, Yu V.
AU - Vinogradova, E. V.
PY - 2017/9/1
Y1 - 2017/9/1
N2 - We studied radioprotective effects of a preparation based on yeast RNA and its influence on therapeutic efficiency of ionizing radiation against transplanted tumors. Parenteral administration of yeast RNA preparation to mice in a dose of 10 mg 1 h prior to exposure to ionizing γ-radiation (137Cs) in a lethal dose (LD80/30) increased 30-day survival by 66%; by day 80, 80% of animals survived (vs. 2.5% in the control). Whole-body exposure to ionizing γ-radiation in a dose of 7 Gy significantly increased the mean lifespan of mice with experimental lung metastases or intraperitoneally transplanted leukemia L-1210 by 42 and 20.8%, respectively. RNA preparation injected to the mice with tumors 1 h before irradiation did not affect the therapeutic efficiency of ionizing radiation or significantly potentiated it (in mice with transplanted leukemia L-1210). These results suggest that yeast RNA preparation protects healthy tissues during radiotherapy of malignant tumors.
AB - We studied radioprotective effects of a preparation based on yeast RNA and its influence on therapeutic efficiency of ionizing radiation against transplanted tumors. Parenteral administration of yeast RNA preparation to mice in a dose of 10 mg 1 h prior to exposure to ionizing γ-radiation (137Cs) in a lethal dose (LD80/30) increased 30-day survival by 66%; by day 80, 80% of animals survived (vs. 2.5% in the control). Whole-body exposure to ionizing γ-radiation in a dose of 7 Gy significantly increased the mean lifespan of mice with experimental lung metastases or intraperitoneally transplanted leukemia L-1210 by 42 and 20.8%, respectively. RNA preparation injected to the mice with tumors 1 h before irradiation did not affect the therapeutic efficiency of ionizing radiation or significantly potentiated it (in mice with transplanted leukemia L-1210). These results suggest that yeast RNA preparation protects healthy tissues during radiotherapy of malignant tumors.
KW - experimental tumor metastases in the lungs
KW - leukemia L-1210
KW - radioprotectors
KW - radiotherapy
KW - yeast RNA preparation
KW - EXPOSURE
UR - http://www.scopus.com/inward/record.url?scp=85029803670&partnerID=8YFLogxK
U2 - 10.1007/s10517-017-3868-x
DO - 10.1007/s10517-017-3868-x
M3 - Article
C2 - 28948545
AN - SCOPUS:85029803670
VL - 163
SP - 639
EP - 642
JO - Bulletin of Experimental Biology and Medicine
JF - Bulletin of Experimental Biology and Medicine
SN - 0007-4888
IS - 5
ER -
ID: 9909406