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Myogenic Differentiation에 있어서 JAK3의 역할
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | Lee, Il Jae | - |
| dc.date.accessioned | 2019-10-21T07:18:39Z | - |
| dc.date.available | 2019-10-21T07:18:39Z | - |
| dc.date.issued | 2012-08 | - |
| dc.identifier.other | 12749 | - |
| dc.identifier.uri | https://dspace.ajou.ac.kr/handle/2018.oak/18031 | - |
| dc.description | 학위논문(박사)아주대학교 일반대학원 :의학과,2012. 8 | - |
| dc.language.iso | eng | - |
| dc.publisher | The Graduate School, Ajou University | - |
| dc.rights | 아주대학교 논문은 저작권에 의해 보호받습니다. | - |
| dc.title | Myogenic Differentiation에 있어서 JAK3의 역할 | - |
| dc.title.alternative | Il Jae Lee | - |
| dc.type | Thesis | - |
| dc.contributor.affiliation | 아주대학교 일반대학원 | - |
| dc.contributor.alternativeName | Il Jae Lee | - |
| dc.contributor.department | 일반대학원 의학과 | - |
| dc.date.awarded | 2012. 8 | - |
| dc.description.degree | Master | - |
| dc.identifier.localId | 570440 | - |
| dc.identifier.url | http://dcoll.ajou.ac.kr:9080/dcollection/jsp/common/DcLoOrgPer.jsp?sItemId=000000012749 | - |
| dc.subject.keyword | JAK3 | - |
| dc.subject.keyword | STAT1 | - |
| dc.subject.keyword | STAT3 | - |
| dc.subject.keyword | Myoblast differentiation | - |
| dc.subject.keyword | Myocyte fusion | - |
| dc.description.alternativeAbstract | Skeletal muscle differentiation is regulated by transcription factors, including members of the myogenic regulatory factors (MRFs) family and many signaling pathways. The JAK1 and JAK2 pathways are known to each have different effects on myoblast proliferation and differentiation; however, the role of JAK3 in myoblast differentiation remains unclear. In this study, we investigated the effect of JAK3 inhibition on myogenic differentiation in the C2C12 mouse myoblast cell line. During myogenic differentiation, treatment with the JAK3 inhibitor WHIp154 significantly increased the number of MHC-positive multinucleated myotubes and the expressions of myosin heavy chain (MHC), myogenin (MGN), MyoD, and myogenic enhancer factor 2 (MEF2). Knockdown of the JAK3 gene using siJAK3 also significantly increased MHC, MGN and MyoD mRNA expressions as well as insulin-like growth factor-II (IGF-II) gene expression. During differentiation, JAK3 was initially activated and later decreased. Differentiation decreased STAT1, which was further decreased by WHIp154. In contrast, STAT3 gradually was elevated during differentiation, and was increased by JAK3 inhibition. Moreover, we found that up-regulation of AKT activity and down-regulation of ERK activity cooperated to accelerate myogenic differentiation. Taken together, these data indicate that JAK3 inhibition potently facilitates myoblast differentiation through antagonistic STAT1/STAT3 activities. Additionally, JAK3 inhibition induced precocious differentiation and played important roles for terminal differentiation, including fusion, which is involved with regulation of AKT and ERK pathways. | - |
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- Graduate School of Ajou University > Department of Medicine > 3. Theses(Master)
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