Tobacco, cocoa, coffee, and ragweed: cross-reacting allergens that activate
factor-XII-dependent pathways
CG Becker, N Van Hamont and M Wagner
A glycoprotein antigen has been isolated from cured tobacco leaves (TGP- L)
Nicotiana tabacum) and from cigarette smoke condensate (TGP-CSC) to which
approximately one-third of human volunteers, smokers and non- smokers,
exhibit immediate cutaneous hypersensitivity. TGP-L and TGP- CSC contain
polyphenol haptens that activate the factor XII (Hageman factor) dependent
pathways of coagulation, fibrinolysis, and kinin generation in normal human
plasma. The purpose of this communication is to describe the isolation
antigens from cocoa powder (Theobroma cacao), ground coffee (Coffea
arabica), and ragweed (Ambrosia eliator) pollen that are immunologically
cross-reactive with TGP-L and TGP-CSC, contain similar polyphenol haptens,
and are capable of activating factor-XII- dependent pathways in normal
human plasma.
Volume 58,
Issue 5,
pp. 861-867,
11/01/1981
Copyright © 1981 by The American Society of Hematology