Systematic Multiomic Analysis of Ly75 Gene Expression and Its Prognostic Value through the Infiltration of Natural Killer (NK) Cells in Skin Cutaneous Melanoma
- Authors
- Gil, Minchan; Kim, Kyung Eun
- Issue Date
- May-2020
- Publisher
- MDPI
- Keywords
- Ly75; CD205; skin cutaneous melanoma (SKCM); prognostic factor; natural killer (NK) cells; immune cell infiltration
- Citation
- JOURNAL OF CLINICAL MEDICINE, v.9, no.5
- Journal Title
- JOURNAL OF CLINICAL MEDICINE
- Volume
- 9
- Number
- 5
- URI
- https://scholarworks.sookmyung.ac.kr/handle/2020.sw.sookmyung/2450
- DOI
- 10.3390/jcm9051383
- ISSN
- 2077-0383
2077-0383
- Abstract
- Ly75 (also known as DEC-205 or CD205) is expressed in immune cells and cancers and involved in tumor immunity. However, clinical relevance of Ly75 expression in skin cutaneous melanoma (SKCM) have not been comprehensively studied. This study analyzed the correlation between Ly75 mRNA expression and patient survival using systematic multiomic analysis tools. Ly75 mRNA expression level was significantly lower in SKCM tissues than in normal tissues. Survival analysis showed that Ly75 expression significantly correlated with good patient survival. To determine possible mechanisms, the association between Ly75 expression and immune cell infiltration was analyzed. Ly75 expression was positively correlated with various infiltrated immune cells, particularly with natural killer (NK) cell infiltration and activation in SKCM. Moreover, analysis of Ly75-co-altered gene expression revealed that Ptprc (CD45) was most significantly correlated with Ly75. Gene ontology analysis of Ly75-co-altered genes indicated the relation to lymphocyte activation, including NK cell activation. Overall, our study provides the first clinical evidence that Ly75 expression is significantly associated with melanoma patient survival and NK cell infiltration, suggesting that Ly75 could be a useful prognostic factor.
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