Complement activation markers in aHUS patients
Patients . | Mutations or anti-CFH Ab . | Complement parameters . | Endothelial complement deposits . | ||||||
---|---|---|---|---|---|---|---|---|---|
Serum C3 (83-180 mg/dL)* . | Serum C4 (10-40 mg/dL)* . | Plasma C5a (1.9-13.1 ng/mL)* . | Plasma SC5b-9 (127-400 ng/mL)* . | C3 deposits (% of control) . | C5b-9 deposits (% of control) . | ||||
Resting . | ADP-activated . | Resting . | ADP-activated . | ||||||
Acute | |||||||||
Patient 1 | CFH-R1210C | 122 | 38 | 16.1 | 375 | 450%† | 286%† | 340%† | 309%† |
Patient 2 | CFH-R1210C | n.d. | n.d. | 7.3 | 1160 | n.d. | n.d. | 441%† | 609%† |
Patient 3 | CFH-R78G | 55 | 23 | 7.8 | 381 | n.d. | n.d. | 285%† | 306%† |
Patient 4 | Anti-CFH Ab | 58 | 10 | 10 | 653 | 489%† | 288%† | 371%† | 599%† |
Patient 5 | No | 84 | 25 | 5 | 220 | 301%† | 297%† | 722%† | 857%† |
Patient 6 | No | 108 | 28.8 | n.a. | n.a. | n.d. | n.d. | 787%† | 577%† |
Patient 7 | No | 51 | 11 | 1.8 | 69 | n.d. | n.d. | n.d. | 1055%† |
Patient 8 | No | 89 | 22 | 31.1 | 335 | n.d. | n.d. | 1044%† | 1087%† |
Patient 9 | No | n.d. | n.d. | 49.8 | 933 | n.d. | n.d. | 1509%† | 1060%† |
Patient 10 | No | 82 | 13 | 61.5 | 541 | n.d. | n.d. | 470%† | n.d. |
Patient 11 | No | 58 | 18 | 61 | 1432 | n.d. | n.d. | 167% | n.d. |
Patient 12 | No | n.d. | n.d. | n.a. | n.a. | n.d. | n.d. | 650%† | n.d. |
Patient 13 | No | n.d. | n.d. | 21.2 | 713 | n.d. | n.d. | 476%† | n.d. |
Patient 14 | No | 103 | 18.7 | n.a. | n.a. | n.d. | n.d. | 881%† | n.d. |
Remission | |||||||||
Patient 1 | CFH-R1210C | 108 | 30 | 31.2 | 233 | 213% | 240%† | 108% | 187%† |
Patient 2 | CFH-R1210C | n.d. | n.d. | n.a. | n.a. | n.d. | n.d. | 94% | 644%† |
Patient 3 | CFH-R78G | 51 | 17 | 12.2 | 725 | n.d. | 86% | 86% | 195%† |
Patient 15 | CFH-S1191L | 109 | 36 | 14.9 | 656 | n.d. | 234%† | n.d. | 468%† |
Patient 16 | CFH-S1191L | 115 | 21 | 8.3 | 447 | n.d. | 258%† | n.d. | 504%† |
Patient 17 | CFH-S1191L | 51 | 33 | 14.5 | 178 | n.d. | 387%† | n.d. | 590%† |
Patient 18 | CFH-E1172X | 51 | 26 | 3.6 | 476 | n.d. | 167%† | n.d. | 244%† |
Patient 19 | CFH-R1215G | 73 | 24 | 16 | 655 | n.d. | 167%† | n.d. | 242%† |
Patient 20 | CFH-1183-1194 dup | n.d. | n.d. | 10.7 | 342 | n.d. | 287%† | n.d. | 351%† |
Patient 21 | CFH-N516K | 65 | 40 | 29.8 | 905 | n.d. | 112% | n.d. | 255%† |
Patient 22 | CFH-G1011Vfs4X | 80 | 22 | 14.8 | 802 | n.d. | 149% | n.d. | 158%† |
Patient 23 | CFHR1/CFH hybrid | n.d. | n.d. | 29.6 | 236 | n.d. | n.d. | n.d. | 605%† |
Patient 24 | CFI-G261D | 136 | 38 | 11.3 | 1100 | n.d. | 342%† | n.d. | 209%† |
Patient 25 | CFI-1340T/G424D | 136 | 72 | 21.2 | 719 | n.d. | 341%† | n.d. | 326%† |
Patient 26 | CFI-P50A | 125 | 41 | 18.6 | 676 | n.d. | 482%† | n.d. | 250%† |
Patient 27 | CFI-1357M | 94 | 21 | 8.8 | 515 | n.d. | 291%† | n.d. | 520%† |
Patient 28 | C3-K1029M | 55 | 29 | 13.3 | 348 | n.d. | 294%† | n.d. | 253%† |
Patient 29 | C3-T140R | 82 | 26 | 8.6 | 1052 | n.d. | 151%† | n.d. | 213%† |
Patient 30 | C3-S1041R | 86 | 11 | 7.2 | 444 | n.d. | 311%† | n.d. | 171%† |
Patient 31 | CFB-R138W | 65 | 15 | 9.5 | 455 | n.d. | 223%† | n.d. | 182%† |
Patient 4 | Anti-CFH Ab | 149 | 38 | 8.1 | 591 | 93% | 344%† | 79% | 516%† |
Patient 32 | Anti-CFH Ab | 75 | 14 | 24.9 | 1206 | n.d. | 99% | n.d. | 316%† |
Patient 5 | No | n.d. | n.d. | 3 | 183 | 112% | 302%† | 157% | 504%† |
Patient 6 | No | 120 | 20 | 14.7 | 280 | n.d. | n.d. | 104% | 431%† |
Patient 7 | No | n.d. | n.d. | 2.5 | 117 | n.d. | n.d. | n.d. | 937%† |
Patient 33 | No | 79 | 28 | 31.1 | 1780 | n.d. | 283%† | n.d. | 282%† |
Patient 34 | No | 63 | 28 | 13.5 | 209 | n.d. | 343%† | n.d. | 567%† |
Patient 35 | No | 204 | 58 | 15.6 | 850 | n.d. | 286%† | n.d. | 468%† |
Patient 36 | No | 57 | 32 | 16.8 | 1490 | n.d. | 450%† | n.d. | 504%† |
Patients . | Mutations or anti-CFH Ab . | Complement parameters . | Endothelial complement deposits . | ||||||
---|---|---|---|---|---|---|---|---|---|
Serum C3 (83-180 mg/dL)* . | Serum C4 (10-40 mg/dL)* . | Plasma C5a (1.9-13.1 ng/mL)* . | Plasma SC5b-9 (127-400 ng/mL)* . | C3 deposits (% of control) . | C5b-9 deposits (% of control) . | ||||
Resting . | ADP-activated . | Resting . | ADP-activated . | ||||||
Acute | |||||||||
Patient 1 | CFH-R1210C | 122 | 38 | 16.1 | 375 | 450%† | 286%† | 340%† | 309%† |
Patient 2 | CFH-R1210C | n.d. | n.d. | 7.3 | 1160 | n.d. | n.d. | 441%† | 609%† |
Patient 3 | CFH-R78G | 55 | 23 | 7.8 | 381 | n.d. | n.d. | 285%† | 306%† |
Patient 4 | Anti-CFH Ab | 58 | 10 | 10 | 653 | 489%† | 288%† | 371%† | 599%† |
Patient 5 | No | 84 | 25 | 5 | 220 | 301%† | 297%† | 722%† | 857%† |
Patient 6 | No | 108 | 28.8 | n.a. | n.a. | n.d. | n.d. | 787%† | 577%† |
Patient 7 | No | 51 | 11 | 1.8 | 69 | n.d. | n.d. | n.d. | 1055%† |
Patient 8 | No | 89 | 22 | 31.1 | 335 | n.d. | n.d. | 1044%† | 1087%† |
Patient 9 | No | n.d. | n.d. | 49.8 | 933 | n.d. | n.d. | 1509%† | 1060%† |
Patient 10 | No | 82 | 13 | 61.5 | 541 | n.d. | n.d. | 470%† | n.d. |
Patient 11 | No | 58 | 18 | 61 | 1432 | n.d. | n.d. | 167% | n.d. |
Patient 12 | No | n.d. | n.d. | n.a. | n.a. | n.d. | n.d. | 650%† | n.d. |
Patient 13 | No | n.d. | n.d. | 21.2 | 713 | n.d. | n.d. | 476%† | n.d. |
Patient 14 | No | 103 | 18.7 | n.a. | n.a. | n.d. | n.d. | 881%† | n.d. |
Remission | |||||||||
Patient 1 | CFH-R1210C | 108 | 30 | 31.2 | 233 | 213% | 240%† | 108% | 187%† |
Patient 2 | CFH-R1210C | n.d. | n.d. | n.a. | n.a. | n.d. | n.d. | 94% | 644%† |
Patient 3 | CFH-R78G | 51 | 17 | 12.2 | 725 | n.d. | 86% | 86% | 195%† |
Patient 15 | CFH-S1191L | 109 | 36 | 14.9 | 656 | n.d. | 234%† | n.d. | 468%† |
Patient 16 | CFH-S1191L | 115 | 21 | 8.3 | 447 | n.d. | 258%† | n.d. | 504%† |
Patient 17 | CFH-S1191L | 51 | 33 | 14.5 | 178 | n.d. | 387%† | n.d. | 590%† |
Patient 18 | CFH-E1172X | 51 | 26 | 3.6 | 476 | n.d. | 167%† | n.d. | 244%† |
Patient 19 | CFH-R1215G | 73 | 24 | 16 | 655 | n.d. | 167%† | n.d. | 242%† |
Patient 20 | CFH-1183-1194 dup | n.d. | n.d. | 10.7 | 342 | n.d. | 287%† | n.d. | 351%† |
Patient 21 | CFH-N516K | 65 | 40 | 29.8 | 905 | n.d. | 112% | n.d. | 255%† |
Patient 22 | CFH-G1011Vfs4X | 80 | 22 | 14.8 | 802 | n.d. | 149% | n.d. | 158%† |
Patient 23 | CFHR1/CFH hybrid | n.d. | n.d. | 29.6 | 236 | n.d. | n.d. | n.d. | 605%† |
Patient 24 | CFI-G261D | 136 | 38 | 11.3 | 1100 | n.d. | 342%† | n.d. | 209%† |
Patient 25 | CFI-1340T/G424D | 136 | 72 | 21.2 | 719 | n.d. | 341%† | n.d. | 326%† |
Patient 26 | CFI-P50A | 125 | 41 | 18.6 | 676 | n.d. | 482%† | n.d. | 250%† |
Patient 27 | CFI-1357M | 94 | 21 | 8.8 | 515 | n.d. | 291%† | n.d. | 520%† |
Patient 28 | C3-K1029M | 55 | 29 | 13.3 | 348 | n.d. | 294%† | n.d. | 253%† |
Patient 29 | C3-T140R | 82 | 26 | 8.6 | 1052 | n.d. | 151%† | n.d. | 213%† |
Patient 30 | C3-S1041R | 86 | 11 | 7.2 | 444 | n.d. | 311%† | n.d. | 171%† |
Patient 31 | CFB-R138W | 65 | 15 | 9.5 | 455 | n.d. | 223%† | n.d. | 182%† |
Patient 4 | Anti-CFH Ab | 149 | 38 | 8.1 | 591 | 93% | 344%† | 79% | 516%† |
Patient 32 | Anti-CFH Ab | 75 | 14 | 24.9 | 1206 | n.d. | 99% | n.d. | 316%† |
Patient 5 | No | n.d. | n.d. | 3 | 183 | 112% | 302%† | 157% | 504%† |
Patient 6 | No | 120 | 20 | 14.7 | 280 | n.d. | n.d. | 104% | 431%† |
Patient 7 | No | n.d. | n.d. | 2.5 | 117 | n.d. | n.d. | n.d. | 937%† |
Patient 33 | No | 79 | 28 | 31.1 | 1780 | n.d. | 283%† | n.d. | 282%† |
Patient 34 | No | 63 | 28 | 13.5 | 209 | n.d. | 343%† | n.d. | 567%† |
Patient 35 | No | 204 | 58 | 15.6 | 850 | n.d. | 286%† | n.d. | 468%† |
Patient 36 | No | 57 | 32 | 16.8 | 1490 | n.d. | 450%† | n.d. | 504%† |
Patients studied both during the acute phase and at remission are in bold.
Ab, antibody; n.a. sample not available; n.d. not done.
Limits of normal ranges (as defined in supplemental “Methods”).
P < .05 vs control (statistical comparisons were made for each patient by comparing deposits in pixel2 recorded in the 15 fields analyzed for the patient and for the corresponding control run in parallel, as detailed in supplemental “Methods” and in supplemental Table 1).