Table 1.
Total lipid composition of growth plate tissues: Chondrocytes, membranes, and matrix vesicles (MVs). The cell membrane fraction represents more dense membranous material that sediments more rapidly than MVs; it probably contains some MVs that are partially calcified. It does not specifically represent the plasma membrane. Adapted from [53].
| % of Total lipid | |||||
|---|---|---|---|---|---|
|
| |||||
| Chondrocytes | |||||
| Lipid | Whole cartilage | Proliferating | Hypertrophic | Cell membranes | MVs |
| SM | 8.6 ± 0.7 | 5.8 ± 0.4 | 8.0 ± 0.8 | 8.1 ± 0.8 | 13.4 ± 1.8 |
| PC | 45.2 ± 1.9 | 47.6 ± 1.5 | 38.0 ± 1.5 | 53.2 ± 2.2 | 41.8 ± 2.5 |
| LPC | 2.0 ± 0.6 | 1.9 ± 0.4 | 1.8 ± 0.4 | 3.5 ± 0.8 | 3.4 ± 0.8 |
| PE | 17.6 ± 1.0 | 16.9 ± 0.7 | 14.7 ± 0.8 | 14.6 ± 1.8 | 14.9 ± 1.8 |
| LPE | 2.0 ± 0.4 | 3.3 ± 0.7 | 2.4 ± 0.4 | 4.9 ± 1.2 | 6.5 ± 1.2 |
| PS | 5.1 ± 0.8 | 3.3 ± 0.3 | 5.0 ± 1.0 | 5.4 ± 0.7 | 9.3 ± 1.1 |
| LPS | 0.5 ± 0.2 | 0.2 ± 0.1 | 0.3 ± 0.2 | 2.2 ± 0.7 | 2.4 ± 0.8 |
| PI | 7.2 ± 0.8 | 6.2 ± 0.8 | 6.4 ± 0.8 | 6.1 ± 0.8 | 6.6 ± 0.6 |
| LPI | 1.1 ± 0.7 | 1.0 ± 0.6 | 0.5 ± 0.4 | 0.3 ± 0.2 | 1.1 ± 0.3 |
| PA | 2.0 ± 0.5 | 0.8 ± 0.3 | 1.6 ± 0.5 | 1.1 ± 0.2 | 0.9 ± 0.3 |
| PG | 1.2 ± 0.6 | 0.7 ± 0.3 | 1.2 ± 0.6 | 0.9 ± 0.2 | 1.3 ± 0.3 |
| di-PG | 3.0 ± 0.6 | 2.5 ± 0.4 | 2.9 ± 0.6 | 1.7 ± 0.3 | 1.5 ± 1.4 |