서지주요정보
Development of human iPSC derived brain organoid from neural progenitor cell for modeling Parkinson's disease = 신경전구세포를 활용한 인체 유래 뇌 오가노이드 개발 및 파킨슨병 모델링
서명 / 저자 Development of human iPSC derived brain organoid from neural progenitor cell for modeling Parkinson's disease = 신경전구세포를 활용한 인체 유래 뇌 오가노이드 개발 및 파킨슨병 모델링 / Eunjin Yang.
발행사항 [대전 : 한국과학기술원, 2025].
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소장위치/청구기호

학술문화관(도서관)2층 학위논문

MBCS 25004

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Human induced pluripotent stem cell (hiPSC)-derived brain organoids are emerging as a promising tool for overcoming the limitations of 2D neuronal models. However, existing organoid models face challenges in achieving precise differentiation of specific brain regions and replicating disease-relevant phenotypes. In this study, we developed an optimized protocol for generating brain organoids starting from neural progenitor cells (NPCs). The generated organoids demonstrated clear regional specificity and characteristic neuronal activity patterns. Additionally, we established both patient-derived and chemically induced models to investigate Parkinson’s Disease (PD) pathology. In the chemically induced model, mitochondrial dysfunction and disease-related molecular pathway alterations were observed. The patient-derived organoids exhibited disease-specific phenotypes, including slower growth rates, reduced viability, and alpha-synuclein aggregation. These findings demonstrate the potential of NPC-based brain organoids as a model for studying the pathological mechanisms of PD and other human-specific neurological disorders.

인체유도 만능줄기세포 유래 뇌 오가노이드는 2차원 신경 모델의 한계를 극복할 수 있는 유망한 도구로 주목받고 있다. 그러나 기존 오가노이드 모델은 특정 뇌 영역의 정확한 분화와 질병 표현형 재현에 한계가 있다. 본 연구에서는 신경전구세포에서 시작하는 최적화된 뇌 오가노이드 프로토콜을 개발하였다. 생성된 오가노이드는 영역 특이성과 전형적인 신경 활동 패턴이 검증되었다. 또한, 본 연구에서는 파킨슨병 병리학 연구를 위해 환자 유래 모델과 화학적 유도 모델을 생성하였다. 화학적 유도 모델에서는 미토콘드리아 기능 장애와 관련된 질병 관련 분자 경로의 변화가 관찰되었다. 환자 유래 모델은 느린 성장 속도, 낮은 생존율, 그리고 알파-시누클레인 응집을 포함한 질병 특이적 표현형을 보였다. 이러한 결과는 신경전구세포 기반 뇌 오가노이드가 파킨슨병을 포함한 인간 특이적 신경질환 연구 모델로 활용될 가능성을 보여준다.

서지기타정보

서지기타정보
청구기호 {MBCS 25004
형태사항 iv, 58 p. : 삽화 ; 30 cm
언어 영어
일반주기 저자명의 한글표기: 양은진
지도교수의 영문표기: Choi, Minee
지도교수의 한글표기: 최민이
학위논문 학위논문(석사) - 한국과학기술원 : 뇌인지과학과,
서지주기 References: p. 51-56
주제 Patient-derived human induced Pluripotent Stem Cell (hiPSC)
Brain Organoid
Parkinson's Disease
환자유래 줄기세포
뇌-오가노이드
파킨슨병
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Materials for iPSC maintenance.

Materials for NPC Induction.

Cortical NPC microcopyimage.

Materials for Generating Brain Organoid.

Generation ofBrain Organoid.

Materials for Sample Preparation.

Materials for fixation.

Materials for Immunocytochemistry.

Materials for Live Imaging.

Characterization ofiPSC. (a) Representative microscopy images ofiPSC colonies exhibiting typical stem cell morphology. (b) Representative immunofluorescence images showing the expression of the proliferation marker Ki67 (green). Nuclei are counterstained with Hoechst33342 (blue). Scale bars = 100 um. (c) Representative immunofluorescence images showing the expression of the pluripotency marker OCT

Neural Progenitor Cell Induction and Characterization. (a) Representative phase-contrast microscopy images of neural rosette structures formed during cortical induction. Scale bars = 500 um. (b) Quantification ofNPC-positive cells as a percentage of total cells in Midbrain Dopaminergic Induction and Cortical Induction conditions. Bars represent mean 土 SEM, with individual data points overlaid (n=9

Generation of Brain Organoid. (a) Schematic overview ofthe brain organoid generation protocol developed in this study. (b) Representative microscopy images showing the morphological development of brain organoids at various stages. Scale bars = 500 um. (c) Growth trajectory ofbrain organoid diameter over 30 days post-seeding, shown as a polynomial regression line graph. The X-axis represents time

Region-Specific Marker Expression in Cortical Organoid. (a) Representative immunocytochemistry images of cortical organoids over 60 days, showing expression ofcortical neuronal markers: SATB2 (upper layer neurons, green) and MAP2 (neuronal marker, red). Scale bars = 100 nm. (b) GFAP expression (non-neuronal marker, yellow, with nuclei counterstained using Hoechst33342 (blue). Scale bars = 100 um.

Region-Specific Marker Expression in Midbrain Dopaminergic Organoid. (a) Representative immunocytochemistry images of midbrain dopaminergic organoids at 40 days, showing midbrain-specific neuronal markers: TH (dopaminergic cells, yellow) and MAP2 (neuronal marker, red). Scale bars = 100 nm. (b) GFAP expression (yellow) as a non-neuronal marker with nuclei counterstained using Hoechst33342 (blue).

Spontaneous Neural activities in midbrain dopaminergic organoid. (a) Representative fluorescence image of calcium dynamics captured using Fluo-4 AM (green), highlighting the locations ofcells exhibiting spontaneous activity. Scale bar= 100 um. (b) Representative traces of spontaneous calcium transients recorded from individual regions ofinterest (ROIs) over a 196-second observation period. (c) Sum

KCI-induced Neural activities in midbrain dopaminergic organoid. (a) Representative calcium responses following KCl treatment. Left: Line graph showing calcium dye intensity changes over 300 seconds. Individual traces (n = 13, light blue) and the mean response with an error band (SEM, blue) are shown. Right: Representative images ofcalcium dye intensity before and after KCl treatment, illustrating

Chemically Induced PD Model Treated with Rotenone. (a) Dose-response analysis of ATP levels after rotenone treatment. Top: Standard ATP reference values measured across concentrations ranging from 0 uMto 1 mM (blue). Bottom: ATPlevels measured in response to increasing rotenone concentrations (orange). Rotenone concentrations included 0 nM(n= 8), 1 nM (n = 6), 2 nM (n = 4), 5 nM (n = 6), 10 nM (n

SNCA Triplication PD Model. (a) Developmental differences in midbrain dopaminergic organoids derived from control (SCTi-003A, blue) and SNCA triplication (ND50040, orange) groups. Left: Scatter plot of organoid diameters with a polynomial regression line indicating developmental trends. Right: Box plots comparing organoid diameters across individual time points. Statistical significance was assess

Two-Way ANOVA Results for Organoid Diameter Development. Two-way ANOVA results comparing the developmental trajectories of midbrain dopaminergic organoids derived from control (SCTi- 003A) and SNCA triplication (ND50040) iPSCs. Statistical analysis reveals significant main effects of Group (Control VS. SNCA X3) and Day, as well as a significant Group X Day interaction effect. These results indicat