Whole Body Melanoma Transcriptome Response in Medaka

dc.contributor.authorSchartl, Manfred
dc.contributor.authorShen, Yingjia
dc.contributor.authorMaurus, Katja
dc.contributor.authorWalter, Ronald B.
dc.contributor.authorTomlinson, Chad
dc.contributor.authorWilson, Richard K.
dc.contributor.authorPostlethwait, John
dc.contributor.authorWarren, Wesley C.
dc.date.accessioned2021-08-10T14:43:03Z
dc.date.available2021-08-10T14:43:03Z
dc.date.issued2015-12-29
dc.description.abstractThe incidence of malignant melanoma continues to increase each year with poor prognosis for survival in many relapse cases. To reverse this trend, whole body response measures are needed to discover collaborative paths to primary and secondary malignancy. Several species of fish provide excellent melanoma models because fish and human melanocytes both appear in the epidermis, and fish and human pigment cell tumors share conserved gene expression signatures. For the first time, we have examined the whole body transcriptome response to invasive melanoma as a prelude to using transcriptome profiling to screen for drugs in a medaka (Oryzias latipes) model. We generated RNA-seq data from whole body RNA isolates for controls and melanoma fish. After testing for differential expression, 396 genes had significantly different expression (adjusted p-value <0.02) in the whole body transcriptome between melanoma and control fish; 379 of these genes were matched to human orthologs with 233 having annotated human gene symbols and 14 matched genes that contain putative deleterious variants in human melanoma at varying levels of recurrence. A detailed canonical pathway evaluation for significant enrichment showed the top scoring pathway to be antigen presentation but also included the expected melanocyte development and pigmentation signaling pathway. Results revealed a profound down-regulation of genes involved in the immune response, especially the innate immune system. We hypothesize that the developing melanoma actively suppresses the immune system responses of the body in reacting to the invasive malignancy, and that this mal-adaptive response contributes to disease progression, a result that suggests our whole-body transcriptomic approach merits further use. In these findings, we also observed novel genes not yet identified in human melanoma expression studies and uncovered known and new candidate drug targets for further testing in this malignant melanoma medaka model.
dc.description.departmentChemistry and Biochemistry
dc.formatText
dc.format.extent14 pages
dc.format.medium1 file (.pdf)
dc.identifier.citationSchartl, M., Shen, Y., Maurus, K., Walter, R., Tomlinson, C., Wilson, R. K., Postlethwait, J., & Warren, W. C. (2015). Whole body melanoma transcriptome response in medaka. PLoS One, 10(12), e0143057.
dc.identifier.doihttps://doi.org/10.1371/journal.pone.0143057
dc.identifier.issn1932-6203
dc.identifier.urihttps://hdl.handle.net/10877/14263
dc.language.isoen
dc.publisherPublic Library of Science
dc.rights.holder© 2015 Schartl et al.
dc.rights.licenseThis work is licensed under a Creative Commons Attribution 4.0 International License.
dc.sourcePLoS One, 2015, Vol. 10, No. 12, Article e0143057.
dc.subjectmelanoma
dc.subjectgene expression
dc.subjectgene regulation
dc.subjectmalignant tumors
dc.subjectregulator genes
dc.subjectmelanocytes
dc.subjectcutaneous melanoma
dc.subjecttranscriptome analysis
dc.subjectChemistry and Biochemistry
dc.titleWhole Body Melanoma Transcriptome Response in Medaka
dc.typeArticle

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