The Journal of Experimental Medicine, Vol 114, 833-836,
Copyright, 1961, by The Rockefeller Institute
THE APPLICATION OF FERRITIN-CONJUGATED ANTIBODY TO ELECTRON MICROSCOPIC STUDIES OF INFLUENZA VIRUS IN INFECTED CELLS
:
II. THE INTERIOR OF THE CELL
Councilman Morgan M.D.1,
Konrad C. Hsu Ph.D.1,
Richard A. Rifkind M.D.1,
Alice W. Knox Ph.D.1, and
Harry M. Rose M.D.1
1 From the Department of Microbiology, College of Physicians and Surgeons, Columbia University, New York
Freezing of the chorioallantoic membrane after brief fixation in formalin preserves antigenicity of cellular components and allows penetration of ferritin-conjugated antibody. Dense aggregates of viral antigen, presumed to be of the soluble type, were found in the nuclei of cells infected with influenza virus. Intracytoplasmic antigen, on the other hand, was widely dispersed. The experimental observations are consistent with the hypothesis that soluble antigen diffuses into the cytoplasm through intact nuclear membranes. Nucleoli do not appear to be the sites of antigen synthesis.
Submitted on July 3, 1961