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Shen J, Liu J, Li H, Bai L, Du Z, Geng R, Cao J, Sun P, Tang Z. Explore association of genes in PDL1/PD1 pathway to radiotherapy survival benefit based on interaction model strategy. Radiat Oncol 2021; 16:223. [PMID: 34794456 PMCID: PMC8600865 DOI: 10.1186/s13014-021-01951-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Accepted: 11/08/2021] [Indexed: 02/25/2023] Open
Abstract
Purpose To explore the association of genes in “PD-L1 expression and PD-1 check point pathway in cancer” to radiotherapy survival benefit. Methods and materials Gene expression data and clinical information of cancers were downloaded from TCGA. Radiotherapy survival benefit was defined based on interaction model. Fast backward multivariate Cox regression was performed using stacking multiple interpolation data to identify radio-sensitive (RS) genes. Results Among the 73 genes in PD-L1/PD-1 pathway, we identified 24 RS genes in BRCA data set, 25 RS genes in STAD data set and 20 RS genes in HNSC data set, with some crossover genes. Theoretically, there are two types of RS genes. The expression level of Type I RS genes did not affect patients' overall survival (OS), but when receiving radiotherapy, patients with different expression level of Type I RS genes had varied survival benefit. Oppositely, Type II RS genes affected patients' OS. And when receiving radiotherapy, those with lower OS could benefit a lot. Type II RS genes in BRCA had strong positive correlation and closely biological interactions. When performing cluster analysis using these related Type II RS genes, patients could be divided into RS group and non-RS group in BRCA and METABRIC data sets. Conclusions Our study explored potential radio-sensitive biomarkers of several main cancer types in an important tumor immune checkpoint pathway and revealed a strong association between this pathway and radiotherapy survival benefit. New types of RS genes could be identified based on expanded definition to RS genes. Supplementary Information The online version contains supplementary material available at 10.1186/s13014-021-01951-x.
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Affiliation(s)
- Junjie Shen
- Department of Biostatistics, School of Public Health, Medical College of Soochow University, Suzhou, 215123, China.,Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou, 215123, China
| | - Jingfang Liu
- Department of Gynaecology and Obstetrics, The First Affiliated Hospital of Soochow University, Suzhou, 215123, China
| | - Huijun Li
- Department of Biostatistics, School of Public Health, Medical College of Soochow University, Suzhou, 215123, China.,Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou, 215123, China
| | - Lu Bai
- Department of Biostatistics, School of Public Health, Medical College of Soochow University, Suzhou, 215123, China.,Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou, 215123, China
| | - Zixuan Du
- Department of Biostatistics, School of Public Health, Medical College of Soochow University, Suzhou, 215123, China.,Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou, 215123, China
| | - Ruirui Geng
- Department of Biostatistics, School of Public Health, Medical College of Soochow University, Suzhou, 215123, China.,Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou, 215123, China
| | - Jianping Cao
- School of Radiation Medicine and Protection and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou, 215006, China
| | - Peng Sun
- Department of Otolaryngology, The First Affiliated Hospital of Soochow University, Suzhou, 215123, China.
| | - Zaixiang Tang
- Department of Biostatistics, School of Public Health, Medical College of Soochow University, Suzhou, 215123, China. .,Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou, 215123, China.
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Huang H, Zhang C, Wang X, Shao J, Chen C, Li H, Ju C, He J, Gu H, Xia D. Overcoming Hypoxia-Restrained Radiotherapy Using an Erythrocyte-Inspired and Glucose-Activatable Platform. NANO LETTERS 2020; 20:4211-4219. [PMID: 32352796 DOI: 10.1021/acs.nanolett.0c00650] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Radiotherapy (RT) as one of the most powerful cancer treatment strategies has been greatly restricted by tumor hypoxia. A mounting effort has been devoted to develop oxygen delivery systems for boosting the RT effect. Unluckily, those systems only supplied modest oxygen, which could not afford more than once and long-time RT. Herein, we describe the development of a glucose-regulated drug release platform, allowing for a long-term tumor normoxic microenvironment and repeated RT for a long time. The repeated cycles resulted in sustained high Endostar plasma levels, which dramatically normalized the tumor vasculature and chronically reversed tumor hypoxia. Taking advantage of the inexhaustible supply of oxygen, Endo@GOx-ER enabled RT achieved an impressive cancer treatment output. To the best of our knowledge, our strategy is the initial attempt to overcome tumor-hypoxia-limited RT through the normalization of tumor vasculature by using an erythrocyte-inspired and glucose-activatable platform and it visually casts a light on the clinical development.
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Affiliation(s)
- Hao Huang
- School of Public Health, Nantong University, Nantong, Jiangsu 226019, P.R. China
| | - Chao Zhang
- Institute of Materials Engineering, College of Engineering and Applied Sciences, Nanjing University, Nanjing, Jiangsu 210093, P.R. China
| | - Xiaolin Wang
- Nantong Tumor Hospital, Nantong, Jiangsu 226362, P.R. China
| | - Jinsong Shao
- School of Public Health, Nantong University, Nantong, Jiangsu 226019, P.R. China
| | - Chao Chen
- School of Public Health, Nantong University, Nantong, Jiangsu 226019, P.R. China
| | - Haoming Li
- Medical School of Nantong University, Nantong, Jiangsu 226019, P.R. China
| | - Chunmei Ju
- Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Jian He
- Department of Radiology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing University, Nanjing, Jiangsu 210008, P.R. China
| | - Haiying Gu
- School of Public Health, Nantong University, Nantong, Jiangsu 226019, P.R. China
| | - Donglin Xia
- School of Public Health, Nantong University, Nantong, Jiangsu 226019, P.R. China
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Li Y, Héroux P. Extra-low-frequency magnetic fields alter cancer cells through metabolic restriction. Electromagn Biol Med 2013; 33:264-75. [PMID: 23915261 DOI: 10.3109/15368378.2013.817334] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND Biological effects of extra-low-frequency (ELF) magnetic fields (MFs) have lacked a credible mechanism of interaction between MFs and living material. OBJECTIVES To examine the effect of ELF-MFs on cancer cells. METHODS Five cancer cell lines were exposed to ELF-MFs within the range of 0.025-5 µT, and the cells were examined for karyotype changes after 6 d. RESULTS All cancer cells lines lost chromosomes from MF exposure, with a mostly flat dose-response. Constant MF exposures for three weeks allow a rising return to the baseline, unperturbed karyotypes. From this point, small MF increases or decreases are again capable of inducing karyotype contractions (KCs). Our data suggest that the KCs are caused by MF interference with mitochondria's adenosine triphosphate synthase (ATPS), compensated by the action of adenosine monophosphate-activated protein kinase (AMPK). The effects of MFs are similar to those of the ATPS inhibitor, oligomycin. They are amplified by metformin, an AMPK stimulator, and attenuated by resistin, an AMPK inhibitor. Over environmental MFs, KCs of various cancer cell lines show exceptionally wide and flat dose-responses, except for those of erythroleukemia cells, which display a progressive rise from 0.025 to 0.4 µT. CONCLUSIONS The biological effects of MFs are connected to an alteration in the structure of water that impedes the flux of protons in ATPS channels. These results may be environmentally important, in view of the central roles played in human physiology by ATPS and AMPK, particularly in their links to diabetes, cancer and longevity.
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Affiliation(s)
- Ying Li
- InVitroPlus Laboratory, Department of Surgery, Royal Victoria Hospital , Montreal, QC , Canada and
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