ArticleCartilage2024
Regenerative Variability of Human Juvenile Chondrocyte Sheets From Different Cell Donors in an Athymic Rat Knee Chondral Defect Model.
Article in Cartilage, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
3 citing papers in PubMed.
- Comparison of intra-articular injectable polydactyly-derived chondrocyte sheet-minis with direct transplantation of intact polydactyly-derived chondrocyte sheets in a rat full-thickness cartilage defect model.Regenerative therapy · 2026Article
- Review
- Mechanical harvesting of cell sheets: an efficient approach for bone and cartilage tissue engineering.Stem cell research & therapy · 2025Review
Corrections and comments
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Authors and funding
10 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeThis study aimed to establish a combined histological assessment system of neo-cartilage outcomes and to evaluate variations in an established rat defect model treated with human juvenile cartilage-derived chondrocyte (JCC) sheets fabricated from various donors.
methodsJCCs were isolated from the polydactylous digits of eight patients. Passage 2 (P2) JCC sheets from all donors were transplanted into nude rat chondral defects for 4 weeks (27 nude rats in total). Defect-only group served as control. Histological samples were stained for safranin O, collagen 1 (COL1), and collagen 2 (COL2). (1) All samples were scored, and correlation coefficients for each score were calculated. (2) Donors were divided into "more effective" and "less effective" groups based on these scores. Then, differences between each group in each category of modified O'Driscoll scoring were evaluated.
results(1) Modified O'Driscoll scores were negatively correlated with %COL1 area, and positively correlated with %COL2 area and COL2/1 ratio. (2) Four of 8 donors exhibited significantly higher modified O'Driscoll scores and %COL2 areas. JCC donors were divided into two groups by average score values. Significant differences between the two groups were observed in modified O'Driscoll categories of "Nature of predominant tissue," "Reconstruction of subchondral bone," and "Safranin O staining."
conclusionThe combined histological evaluation method is useful for detailed
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