Monoclonal antibodies against E‐ and F‐type prostaglandins

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Abstract
Polyclonal antisera against prostaglandins (PGs) are widely used for the assessment of the biological role of these mediators, but even the most specific contain antibodies against the major metabolites and degradation products of the haptens employed. To overcome this inherent problem we produced monoclonal antibodies (mAs) against PGE2, PGF2α and 6-keto-PGF1α using the somatic cell hybridization technique. The mAs against 6-keto-PGF1α and PGF2α proved to be highly specific, but allowed only for moderate detection limits (1–2 ng) in conventional fluid phase radioimmunoassays (RIAs). One of the mAs against PGE2 permitted a 100-fold improvement in the detection limit while being almost devoid of cross-reactivity with metabolites and other structurally related PGs. These results show that highly specific mAs against PGs can be produced to improve the available RIA technique for PG quantification

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