Mutual communication between radiosensitive and radioresistant esophageal cancer cells modulates their radiosensitivity.
Mutual communication between radiosensitive and radioresistant esophageal cancer cells modulates their radiosensitivity.
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DOI：
10.1038/s41419-023-06307-9
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发表时间：
2023-12-19
影响因子：
9
通讯作者：
Tang, Kai-Fu
中科院分区：
文献类型：
--
作者：
Xie, Congying;Chen, Xiao;Chen, Yueming;Wang, Xingyue;Zuo, Jiwei;Zheng, Anqi;Luo, Zhicheng;Cheng, Xiaoxiao;Zhong, Shouhui;Jiang, Jiayu;Du, Jizao;Zhao, Yuemei;Jiang, Peipei;Zhang, Wei;Chen, Didi;Pan, Huanle;Shen, Lanxiao;Zhu, Baoling;Zhou, Qingyu;Xu, Yunsheng;Tang, Kai-Fu
Radiotherapy is an important treatment modality for patients with esophageal cancer; however, the response to radiation varies among different tumor subpopulations due to tumor heterogeneity. Cancer cells that survive radiotherapy (i.e., radioresistant) may proliferate, ultimately resulting in cancer relapse. However, the interaction between radiosensitive and radioresistant cancer cells remains to be elucidated. In this study, we found that the mutual communication between radiosensitive and radioresistant esophageal cancer cells modulated their radiosensitivity. Radiosensitive cells secreted more exosomal let-7a and less interleukin-6 (IL-6) than radioresistant cells. Exosomal let-7a secreted by radiosensitive cells increased the radiosensitivity of radioresistant cells, whereas IL-6 secreted by radioresistant cells decreased the radiosensitivity of radiosensitive cells. Although the serum levels of let-7a and IL-6 before radiotherapy did not vary significantly between patients with radioresistant and radiosensitive diseases, radiotherapy induced a more pronounced decrease in serum let-7a levels and a greater increase in serum IL-6 levels in patients with radioresistant cancer compared to those with radiosensitive cancer. The percentage decrease in serum let-7a and the percentage increase in serum IL-6 levels at the early stage of radiotherapy were inversely associated with tumor regression after radiotherapy. Our findings suggest that early changes in serum let-7a and IL-6 levels may be used as a biomarker to predict the response to radiotherapy in patients with esophageal cancer and provide new insights into subsequent treatments.
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DOI：
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发表时间：
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影响因子：
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作者：
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