KMID : 0811720190230020151
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Korean Journal of Physiology & Pharmacology 2019 Volume.23 No. 2 p.151 ~ p.159
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Prediction of itching diagnostic marker through RNA sequencing of contact hypersensitivity and skin scratching stimulation mice models
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Kim Young-Won
Zhou Tong Ko Eun-A Kim Seong-Tae Lee Dong-Hee Seo Ye-Lim Kwon Na-Hee Choi Tae-Yeon Lim Hee-Jung Cho Sung-Vin Bae Gwan-Hui Hwang Yu-Seong Kim Do-Jin Park Hye-Won Lee Min-Jae Jang Eun-Kyung Choi Jeong-Yoon Bae Hye-Mi Lim In-Ja Bang Hyo-Weon Ko Jae-Hong
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Abstract
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Pruritus (itching) is classically defined as an unpleasant cutaneous sensation that leads to scratching behavior. Although the scientific criteria of classification for pruritic diseases are not clear, it can be divided as acute or chronic by duration of symptoms. In this study, we investigated whether skin injury caused by chemical (contact hypersensitivity, CHS) or physical (skin-scratching stimulation, SSS) stimuli causes initial pruritus and analyzed gene expression profiles systemically to determine how changes in skin gene expression in the affected area are related to itching. In both CHS and SSS, we ranked the Gene Ontology Biological Process terms that are generally associated with changes. The factors associated with upregulation were keratinization, inflammatory response and neutrophil chemotaxis. The Kyoto Encyclopedia of Genes and Genomes pathway shows the difference of immune system, cell growth and death, signaling molecules and interactions, and signal transduction pathways. Il1a, Il1b and Il22 were upregulated in the CHS, and Tnf, Tnfrsf1b, Il1b, Il1r1 and Il6 were upregulated in the SSS. Trpc1 channel genes were observed in representative itching-related candidate genes. By comparing and analyzing RNA-sequencing data obtained from the skin tissue of each animal model in these characteristic stages, it is possible to find useful diagnostic markers for the treatment of itching, to diagnose itching causes and to apply customized treatment.
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KEYWORD
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Cytokines, Pruritus, RNA sequence analysis, Transient receptor potential channels, Wound healing
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