인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록·키워드
We evaluated therapeutic peptide candidates for diabetic retinopathy (DR) using a zebrafish model. Three peptides, designed from a type II collagen-derived sequence, were evaluated for toxicity and vascular protective effects. Peptide 1 demonstrated favorable physicochemical stability, low toxicity (> 90% survival), and vascular protective activity. In contrast, Peptides 2 and 3 showed increased toxicity and morphological abnormalities at higher concentrations, limiting their potential utility. In a hyperglycemia-induced zebrafish DR model, Peptide 1 (100-200 µg/ml) reduced retinal vessel thickness with efficacy comparable to aflibercept. Molecular analysis by RT-PCR indicated that Peptide 1 suppressed vascular endothelial growth factor (VEGF) expression and enhanced Tie2 and Angiopoietin-1 (Ang-1) expression, suggesting a role in vascular stabilization. These findings establish zebrafish as a cost-effective and rapid screening platform for early-stage DR drug discovery. These findings support zebrafish as a cost-effective platform for early-stage diabetic retinopathy drug discovery and highlight Peptide 1 as a promising candidate for non-proliferative DR, providing a rationale for further optimization and mechanistic studies toward clinical translation.
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.