期刊
NPJ GENOMIC MEDICINE
卷 6, 期 1, 页码 -出版社
NATURE PORTFOLIO
DOI: 10.1038/s41525-021-00248-y
关键词
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资金
- Canadian Cancer Society Diane Campbell designated research fund [706202]
- Cancer Research Society
- Dalhousie Medical Research Foundation
Markers of early-stage lung cancer were identified through single-cell RNA sequencing analysis and validated in primary lung tumors and circulating blood.
Lung cancer accounts for more than half of the new cancers diagnosed world-wide with poor survival rates. Despite the development of chemical, radiological, and immunotherapies, many patients do not benefit from these therapies, as recurrence is common. We performed single-cell RNA-sequencing (scRNA-seq) analysis using Fluidigm C1 systems to characterize human lung cancer transcriptomes at single-cell resolution. Validation of scRNA-seq differentially expressed genes (DEGs) through quantitative real time-polymerase chain reaction (qRT-PCR) found a positive correlation in fold-change values between C-X-C motif chemokine ligand 1 (CXCL1) and 2 (CXCL2) compared with bulk-cell level in 34 primary lung adenocarcinomas (LUADs) from Stage I patients. Furthermore, we discovered an inverse correlation between chemokine mRNAs, miR-532-5p, and miR-1266-3p in early-stage primary LUADs. Specially, miR-532-5p was quantifiable in plasma from the corresponding LUADs. Collectively, we identified markers of early-stage lung cancer that were validated in primary lung tumors and circulating blood.
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