Detail View

Characterization of anti-depressant effects of a human telomerase-derived peptide in an animal model of chronic restraint stress
Citations

WEB OF SCIENCE

Citations

SCOPUS

Metadata Downloads

DC Field Value Language
dc.contributor.advisor 유성운 -
dc.contributor.author Dayoung Kim -
dc.date.accessioned 2025-02-28T21:01:34Z -
dc.date.available 2025-03-01T06:00:32Z -
dc.date.issued 2025 -
dc.identifier.uri http://hdl.handle.net/20.500.11750/58009 -
dc.identifier.uri http://dgist.dcollection.net/common/orgView/200000846208 -
dc.description Depression, Stress, Microglia, Human telomerase-derived peptide, HPA axis -
dc.description.abstract Depression is a common cause of mental illness in the modern world, and the wide variation in symptoms makes it difficult to develop suitable antidepressants. The commonly used serotonin reuptake inhibitors cause many side effects, making it imperative to develop alternative treatments. In this study, we established a mouse model of stress using the chronic restraint stress (CRS) paradigm. We found that the administration of a human telomerase-derived peptide restored cognitive deficits, anxiety-like, and depressive-like behaviors caused by CRS. Stress activates the hypothalamus-pituitary-adrenal (HPA) axis for the production of stress hormones including corticosterone (CORT), and this peptide reduced the increased serum CORT levels, suggesting the suppression of the HPA axis. We also examined microglia morphology and observed that hyper-ramified microglia morphology induced by CRS was restored by administering this peptide. Collectively, our findings suggest that a human telomerase-derived peptide administration successfully rescues anxiety and depressive behaviors and recovers microglia status in CRS mice, providing evidence for a novel antidepressant efficacy of the peptide.|우울증은 현대 사회에서 정신 질환의 흔한 원인이며, 증상의 다양성으로 인해 적절한 항우울제를 개발하는 것이 어렵다. 일반적으로 사용되는 세로토닌 재흡수 억제제는 많은 부작용을 유발하므로 대체 치료법 개발이 필수적이다. 본 연구에서는 만성 구속 스트레스 패러다임을 사용하여 스트레스의 마우스 모델을 확립했다. 인간 텔로머레이스 유래 펩타이드를 투여하면 만성 구속 스트레스로 인한 인지 결손, 불안 유사 및 우울 유사 행동이 회복된다는 것을 발견했다. 스트레스는 코르티코스테론을 포함한 스트레스 호르몬 생성을 위해 시상하부-뇌하수체-부신 축을 활성화하며, 이 펩타이드는 혈청 코르티코스테론 수치의 증가를 감소시켜 시상하부-뇌하수체-부신 축의 억제를 시사한다. 또한 미세아교세포 형태를 조사한 결과, 만성 구속 스트레스에 의해 유도된 미세아교세포 형태의 변화가 이 펩타이드를 투여함으로써 회복되는 것을 관찰했다. 종합적으로, 인간 텔로머레이스 유래 펩타이드 투여가 만성 구속 스트레스 마우스에서 불안 및 우울 행동을 성공적으로 구제하고 미세아교세포 상태를 회복함을 시사하며, 펩타이드의 새로운 항우울제 효능에 대한 증거를 제공한다. -
dc.description.tableofcontents Ⅰ. Introduction 1

Ⅱ. Material and methods 4

2.1 Animals 4
2.2 Chronic restraint stress (CRS) and drug treatments 4
2.3 Behavioral assays 4
2.3.1 Sucrose preference test (SPT) 4
2.3.2 Tail suspension test (TST) 4
2.3.3 Nest building test (NBT) 5
2.3.4 Open filed test (OFT) 5
2.3.5 Y-maze test 5
2.4 Corticosterone ELISA 5
2.5 3D imaging analysis of microglia morphology 5
2.6 Statistical analysis 6


Ⅲ. Results 7

3.1 CRS-induced mice show more depressive behavior than WT 7
3.2 Effect of GV1001 on the depressive behavior of mice by concentration 9
3.3 GV1001 restores elevated anxiety and cognitive decline 11
3.4 GV1001 lowers elevated CORT levels due to stress 13
3.5 GV1001 restores the morphology of microglia modified by stress 15


Ⅳ. Discussion 17

Ⅴ. Reference 18

ⅤⅠ. Abstract in Korean 20
-
dc.format.extent 20 -
dc.language eng -
dc.publisher DGIST -
dc.title Characterization of anti-depressant effects of a human telomerase-derived peptide in an animal model of chronic restraint stress -
dc.title.alternative 만성구속스트레스 동물 모델에서 인간 텔로머라제 유래 펩타이드의 항우울 효과 분석 -
dc.type Thesis -
dc.identifier.doi 10.22677/THESIS.200000846208 -
dc.description.degree Master -
dc.contributor.department Department of Brain Sciences -
dc.identifier.bibliographicCitation Dayoung Kim. (2025). Characterization of anti-depressant effects of a human telomerase-derived peptide in an animal model of chronic restraint stress. doi: 10.22677/THESIS.200000846208 -
dc.contributor.coadvisor Ja Wook Koo -
dc.date.awarded 2025-02-01 -
dc.publisher.location Daegu -
dc.description.database dCollection -
dc.citation XT.BM 김22 202502 -
dc.date.accepted 2025-01-20 -
dc.contributor.alternativeDepartment 뇌과학과 -
dc.subject.keyword Depression, Stress, Microglia, Human telomerase-derived peptide, HPA axis -
dc.contributor.affiliatedAuthor Dayoung Kim -
dc.contributor.affiliatedAuthor Seong-Woon Yu -
dc.contributor.affiliatedAuthor Ja Wook Koo -
dc.contributor.alternativeName 김다영 -
dc.contributor.alternativeName Seong-Woon Yu -
dc.contributor.alternativeName 구자욱 -
Show Simple Item Record

File Downloads

  • There are no files associated with this item.

공유

qrcode
공유하기

Total Views & Downloads