Abstract
Intravenous injection of 125I-labeled isolated mouse serum amyloid P component (SAP) into mice with systemic AA amyloidosis led to specific deposition of the labeled proetin in mayloidotic organs. The amount correlated with the quantity of amyloid present and localized in the same distribution within the organs as the amyloid deposits. Human SAP, when injected intravenously into amyloidotic mice, also localized specifically to the amyloid deposits. These observations establish directly that circulating SAP is the precursor of the amyloid P component (AP) found associated with amyloid deposits. In addition to elucidating one aspect of the pathogenesis of amyloid deposition, these results suggest a means for selective targeting of diagnostic traces and/or effector agents to amyloid deposits in vivo.
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© 1986 Plenum Press, New York
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Baltz, M.L., Caspi, D., Rowe, I.F., Hind, C.R.K., Evans, D.J., Pepys, M.B. (1986). Pathogenetic Mechanisms and Precursor Product Relationships in Murine Amyloidosis. In: Glenner, G.G., Osserman, E.F., Benditt, E.P., Calkins, E., Cohen, A.S., Zucker-Franklin, D. (eds) Amyloidosis. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-2199-6_12
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DOI: https://doi.org/10.1007/978-1-4613-2199-6_12
Publisher Name: Springer, Boston, MA
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