TABLE 2.

Regression analysis of correlation between immunosuppression capacity and the best lipid indicators in hBMSCs

Lipid or Fatty Acid Indicator	Correlation Coefficient	R2	P	Value Range (mol%)
PC38:4(chains 18:0, 20:4n-6)	−0.91	0.84	0.001	4.7–7.7
PC38:5(chains 18:1, 20:4n-6)	−0.82	0.68	0.012	4.2–6.3
PC34:1(chains 16:0, 18:1)	+0.80	0.64	0.017	23.5–27.0
PC38:4/PC34:1	−0.90	0.81	0.003	0.17–0.33
20:4n-6	−0.71	0.50	0.050	6.1–9.6
22:6n-3	+0.75	0.56	0.032	2.0–3.3
20:4n-6/22:6n-3	−0.76	0.58	0.029	2.2–4.9

The hBMSCs (n = 8, all cultured until passage 4) suppressed T- cell proliferation in a coculture assay (degree of inhibition with hBMSC:PBMC ratio 1:20; range, 70–88%) and relative amounts of selected lipid and fatty acid indicators or their ratios in the cells.