Figure 1. Expression profile of lysophosphatidic acid receptors LPA1, LPA2, and LPA3. LPA receptor expression profile in dental pulp fibroblasts (DPF). RNA was extracted and subjected to RT-PCR analysis. Amplification products were separated on 1.5% agarose gels, stained with ethidium bromide, and photographed. Lanes #1-6 represent amplification products of individual preparations of DPF.