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논문 기본 정보

자료유형
학술저널
저자정보
Kim Seon-Hwa (The Center for Marine Integrated Biomedical Technology (BK21 PLUS) Pukyong National University) Jo Sung-Han (The Center for Marine Integrated Biomedical Technology (BK21 PLUS) Pukyong National University) Kim Byeong Kook (New-Senior Oriented Smart Health Care Education Center (BK21 Plus) Pukyong National University) Park Sang-Hyug (Industry 4.0 Convergence Bionics Engineering Pukyong National University)
저널정보
한국조직공학과 재생의학회 조직공학과 재생의학 조직공학과 재생의학 제20권 제2호
발행연도
2023.4
수록면
213 - 223 (11page)
DOI
10.1007/s13770-022-00504-x

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Background: Eye irritation tests with animals have been conducted for a long time. However, the subjective decision to irritation, the anatomic/physiologic difference between species and humans, and ethical issues are crucial problems. Various research groups have paid attention to alternative testing methods. In these senses, we fabricated in vitro mini-cornea models with immortalized human corneal epithelial cells (iHCECs) and keratocytes (iHCKs) and used them for irritation tests. This study hypothesized that our mini-cornea model could present different viability tendencies according to test chemicals with different irritancy levels. METHODS: Cells used in this study were characterized with cornea-specific markers by immunocytochemistry and western blot. To make a three-dimensional hemisphere construct like cornea stroma, we cultured iHCKs under modified culture conditions verified by matrix formation and total collagen content. iHCECs were seeded on the construct and cultured at an air–liquid interface. The model was treated with 2-phenoxyethanol, triton X-100, sodium lauryl sulfate, and benzalkonium chloride. RESULTS: iHCECs and iHCKs presented their specific cell markers. In modifying the culture condition, the group treating ascorbic acid (200 µg/ml) presented an intact cellular matrix and included the highest collagen content; thus, we used this condition to fabricate the mini-cornea model. The model shows hemisphere shape and homogenous cell distributions in histological analysis. We observed different sensitivity tendencies by types of chemicals, and the model's viability significantly decreased when the chemical concentration increased. CONCLUSION: In this study, we performed and observed irritation tests using a tissue-engineered mini-cornea model and considered to apply as an alternative approach for animal tests.

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