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KMID : 0624620220550020072
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BMB Reports
2022 Volume.55 No. 2 p.72 ~ p.80
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Odorant receptors in cancer
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Chung Chan
Cho Hee-Jin
Lee Chae-Eun
Koo Jae-Hyung
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Abstract
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Odorant receptors (ORs), the largest subfamily of G proteincoupled receptors, detect odorants in the nose. In addition, ORs were recently shown to be expressed in many nonolfactory tissues and cells, indicating that these receptors have physiological and pathophysiological roles beyond olfaction. Many ORs are expressed by tumor cells and tissues, suggesting that they may be associated with cancer progression or may be cancer biomarkers. This review describes OR expression in various types of cancer and the association of these receptors with various types of signaling mechanisms. In addition, the clinical relevance and significance of the levels of OR expression were evaluated. Namely, levels of OR expression in cancer were analyzed based on RNA-sequencing data reported in the Cancer Genome Atlas; OR expression patterns were visualized using t-distributed stochastic neighbor embedding (t-SNE); and the associations between patient survival and levels of OR expression were analyzed. These analyses of the relationships between patient survival and expression patterns obtained from an open mRNA database in cancer patients indicate that ORs may be cancer biomarkers and therapeutic targets.
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KEYWORD
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Cancer, Ectopic expression, Odorant receptor (OR), TCGA, t-SNE
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