Recognition of gonadotropin-secreting cells by pituitary antibodies.

A, The top three panels represent the staining obtained using participant's serum (left), commercial FSHβ antibody (center), and the merged staining (right). All anterior pituitary cells recognized by the participant's antibodies (green) were also recognized by the anti-FSHβ (red), yielding a yellow color in the merged panel. B, The bottom three panels represent the staining obtained using participant's serum (left), commercial LHβ antibody (center), and the merged staining (right). Most anterior pituitary cells recognized by the participant's antibodies (green) were also recognized by anti-LHβ (red) (white arrow), whereas a few cells were recognized only by the participant's serum (pink arrow).