Table 3.

vWF Abnormal Fragments Found in Samples From Patients With Recurrent HUS/TTP With MoAbs Recognizing the N Terminus and the C Terminus of vWF Subunit

Patient Disease PhaseMoAb Anti-N Terminus (RG7) MoAb Anti-C Terminus (RG5)
Abnormal Fragments Abnormal Fragments
R1  Acute  No  Yes (140 kD3-150)  
 Remission No  No  
R7  Acute  No  No  
 Remission  No No  
R12  Acute  Yes (176 kD3-150)  Yes (140 kD3-150
 Remission  Yes (176 kD3-150)  Yes (140 kD3-150)  
R13 Remission  Yes (189 kD3-150)  No  
R14  Acute  Yes (150 kD3-150)  Yes (140 kD3-150 and 150 kD3-150)  
 Remission No  No  
R15  Remission  No  No  
R19  Remission No  Yes (150 kD3-150)  
R20  Remission  No  No  
R29 Acute  Yes (140 kD3-151 and 176 kD3-150Yes (150 kD3-150 and 176 kD3-152
Patient Disease PhaseMoAb Anti-N Terminus (RG7) MoAb Anti-C Terminus (RG5)
Abnormal Fragments Abnormal Fragments
R1  Acute  No  Yes (140 kD3-150)  
 Remission No  No  
R7  Acute  No  No  
 Remission  No No  
R12  Acute  Yes (176 kD3-150)  Yes (140 kD3-150
 Remission  Yes (176 kD3-150)  Yes (140 kD3-150)  
R13 Remission  Yes (189 kD3-150)  No  
R14  Acute  Yes (150 kD3-150)  Yes (140 kD3-150 and 150 kD3-150)  
 Remission No  No  
R15  Remission  No  No  
R19  Remission No  Yes (150 kD3-150)  
R20  Remission  No  No  
R29 Acute  Yes (140 kD3-151 and 176 kD3-150Yes (150 kD3-150 and 176 kD3-152
F3-150

Presumed molecular weight extrapolated from the position of the band on gel.

F3-151

The molecular weight of this band is slightly higher than normal N terminus 140 kD.

F3-152

The molecular weight of this band is slightly lower than normal C terminus 176 kD.

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