Abstract
Radiotherapy is the main treatment for cervical cancer. It is usually applied alone or in combination with surgery and/or chemotherapy. To explore the association between immune microenvironment of cervical cancer and radiotherapy response, we collected 20 paired cervical cancer tumor samples before and after radiotherapy and partial clinical information. With paired-end RNA-seq, we quantified the immune infiltration and tumor purity of these samples, and obtained 6350 differentially expressed genes before and after radiotherapy. With the help of R language, the function enrichment analysis and 22 immune cells infiltration analysis were carried out. Moreover, we built a random forest model based on the immune microenvironment to predict the short-term efficacy of radiotherapy. We found that the effect of radiotherapy on the immune microenvironment of stage III and IV cervical cancer patients was weaker than that of stage I and II cervical cancer patients. Radiotherapy can significantly reduce the tumor purity and increase immune infiltration. The proportions of the immune infiltrating cells are predictive of the radiotherapy efficacy. In addition, the local mucositis caused by radiotherapy can improve the curative effect of radiotherapy.
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Funding
This work was supported by National Natural Science Foundation of China (82073339; 62072058), Project of Wuxi Health Committee (Q202015) and Scientific Projects of Changzhou Medical Center raised by Nanjing Medical University (CMCB202201).
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ZS, XL, HL, JL conceived and designed the experiment, and analyzed the data. JS, SZ collected clinical cervical cancer samples. ZS, XL wrote this paper. All the authors reviewed the manuscript.
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Sun, Z., Liu, X., Song, J. et al. Immune infiltration could predict the efficacy of short-term radiotherapy in patients with cervical cancer. Clin Transl Oncol 25, 1353–1367 (2023). https://doi.org/10.1007/s12094-022-03033-0
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DOI: https://doi.org/10.1007/s12094-022-03033-0