Virchows Archiv B

, 56:259 | Cite as

Complement activation in amyloid plaques in Alzheimer’s dementia

  • P. Eikelenboom
  • C. E. Hack
  • J. M. Rozemuller
  • F. C. Stam


Amyloid plaques in Alzheimer’s dementia contain complement factors C1q, C4 and C3. In the present study we demonstrate complement activation in amyloid plaques using immunoenzymatical techniques and specific antibodies against subunits of individual complement components and activated complement products. Amyloid plaques contain C1q and activated C3 fragments (C3c and C3d, g) but no C1s and C3a. These findings demonstrate that the complement components are not passively bound to the amyloid plaque structures but are the result of an activation process. The role of complement activation in the genesis of senile plaques is discussed.

Key words

Alzheimer’s dementia Amyloid plaques Complement activation 


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Copyright information

© Springer-Verlag 1989

Authors and Affiliations

  • P. Eikelenboom
    • 1
  • C. E. Hack
    • 3
  • J. M. Rozemuller
    • 2
  • F. C. Stam
    • 2
  1. 1.Department of PsychiatryFree UniversityAmsterdamThe Netherlands
  2. 2.Department of Neuropathology, Medical FacultyFree UniversityAmsterdamThe Netherlands
  3. 3.Central Laboratory of the Netherlands Red Cross Blood Transfusion Service and Laboratory for Experimental and Clinical ImmunologyUniversity of AmsterdamThe Netherlands

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