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重组人血管内皮抑制素联合放射治疗对lewis肺癌小鼠的作用

BACKGROUND AND OBJECTIVE: Radiation sensitivity is closely related to tissue oxygen, and rh-endostatin can induce the high level of oxygen content in tumor by " normalizing" tumor angiogenesis which is associated with radiotherapy sensitivity. The aim of this study is to observe the effect...

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Formato: Online Artículo Texto
Lenguaje:English
Publicado: 中国肺癌杂志编辑部 2010
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6000420/
https://www.ncbi.nlm.nih.gov/pubmed/20677570
http://dx.doi.org/10.3779/j.issn.1009-3419.2010.04.22
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description BACKGROUND AND OBJECTIVE: Radiation sensitivity is closely related to tissue oxygen, and rh-endostatin can induce the high level of oxygen content in tumor by " normalizing" tumor angiogenesis which is associated with radiotherapy sensitivity. The aim of this study is to observe the effect of combination of radiotherapy with rh-endostatin in the rats with lung cancer. METHODS: Immediate lewis cancerous ascetic injection method was used to make rats tumors bearing model, then the rats was divided into four groups randomly: group A was treated with saline; group B was treated with rh-endostatin; group C was treated with irradiation and group D was treated with rh-endostatin and irradiation. After all rats were treated, inhibition rates and the tumor growth curve were calculated. Immunohistochemisty was adopted to check the expressions of vascular endothelial growth factor (VEGF) and microvessel density (MVD). RESULTS: Compared with group A, the growth rates of the tumors in the other group were obviously slower, and the tumor weights were significantly different form group A (P < 0.05). Compared with the other groups, the tumor weights of group D were obviously reduced (P < 0.05). Compared with group A, VEGF and MVD of other three groups were reduced (P < 0.05), and group D were significantly cut down. CONCLUSION: Combination with radiotherapy and rh-endostatin could inhibit the lung cancer significantly in rats.The possible mechanisms are to decrease the expression of VEGF and inhibit the production of angiogenesis.
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spelling pubmed-60004202018-07-06 重组人血管内皮抑制素联合放射治疗对lewis肺癌小鼠的作用 Zhongguo Fei Ai Za Zhi 短篇报道 BACKGROUND AND OBJECTIVE: Radiation sensitivity is closely related to tissue oxygen, and rh-endostatin can induce the high level of oxygen content in tumor by " normalizing" tumor angiogenesis which is associated with radiotherapy sensitivity. The aim of this study is to observe the effect of combination of radiotherapy with rh-endostatin in the rats with lung cancer. METHODS: Immediate lewis cancerous ascetic injection method was used to make rats tumors bearing model, then the rats was divided into four groups randomly: group A was treated with saline; group B was treated with rh-endostatin; group C was treated with irradiation and group D was treated with rh-endostatin and irradiation. After all rats were treated, inhibition rates and the tumor growth curve were calculated. Immunohistochemisty was adopted to check the expressions of vascular endothelial growth factor (VEGF) and microvessel density (MVD). RESULTS: Compared with group A, the growth rates of the tumors in the other group were obviously slower, and the tumor weights were significantly different form group A (P < 0.05). Compared with the other groups, the tumor weights of group D were obviously reduced (P < 0.05). Compared with group A, VEGF and MVD of other three groups were reduced (P < 0.05), and group D were significantly cut down. CONCLUSION: Combination with radiotherapy and rh-endostatin could inhibit the lung cancer significantly in rats.The possible mechanisms are to decrease the expression of VEGF and inhibit the production of angiogenesis. 中国肺癌杂志编辑部 2010-04-20 /pmc/articles/PMC6000420/ /pubmed/20677570 http://dx.doi.org/10.3779/j.issn.1009-3419.2010.04.22 Text en 版权所有©《中国肺癌杂志》编辑部2010 https://creativecommons.org/licenses/by/3.0/ This is an open access article distributed in accordance with the terms of the Creative Commons Attribution (CC BY 3.0) License. See: https://creativecommons.org/licenses/by/3.0/
spellingShingle 短篇报道
重组人血管内皮抑制素联合放射治疗对lewis肺癌小鼠的作用
title 重组人血管内皮抑制素联合放射治疗对lewis肺癌小鼠的作用
title_full 重组人血管内皮抑制素联合放射治疗对lewis肺癌小鼠的作用
title_fullStr 重组人血管内皮抑制素联合放射治疗对lewis肺癌小鼠的作用
title_full_unstemmed 重组人血管内皮抑制素联合放射治疗对lewis肺癌小鼠的作用
title_short 重组人血管内皮抑制素联合放射治疗对lewis肺癌小鼠的作用
title_sort 重组人血管内皮抑制素联合放射治疗对lewis肺癌小鼠的作用
topic 短篇报道
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6000420/
https://www.ncbi.nlm.nih.gov/pubmed/20677570
http://dx.doi.org/10.3779/j.issn.1009-3419.2010.04.22
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