Lehrer S, Segna R, Dottino P, Cohen C. Lipid associated sialic
acid in plasma (LASA-P), plasma DM/70K, tumor epidermal growth factor and
tumor DNA index in women with ovarian cancer. Int J Oncol 1993;2:95-96.
We studied two plasma biomarkers in 67 patients with ovarian cancer who had
surgery between 1990 and 1992. Lipid associated sialic acid in plasma (LASA-P)
was assayed by biochemical extraction and partition. DM/70K was detected with
the monoclonal antibody NB 12123. We found a highly significant correlation
between these two markers (p < 0 .0001). Neither marker was associated with
age or tumor stage or grade. We also studied two tumor markers, Epidermal
Growth Factor Receptor (EGFR) and DNA Index (DI). EGFR and DI were not related
to age of patient, tumor stage, or tumor grade, nor were they related to LASA-P
or DM/70K. However, EGFR and DI were positively correlated with each other (p
= 0 .04), suggesting that tumor EGFR may be associated with poor survival.