Rapid weight toss is frequently seen in malignancy. This weight loss i
s considered to result from enhanced lipolysis. Here, we show that adi
pocyte deletion by apoptosis, demonstrated by electron microscopy and
DNA gel electrophoresis, occurs in some patients. Adipocyte apoptosis
could not be demonstrated in patients without malignancy. These findin
gs suggest that fat cell loss by apoptosis plays a role in malignancy-
associated weight loss. (C) 1994 Academic Press, Inc.