The results of our prospective study have revealed great diversity in the treatment regimens used to manage MM in real-life practice. This diversity was linked to factors such as novel agent accessibility and evolving treatment recommendations. Our results provide insight into associated clinical benefits.
We investigated the influence of testosterone on binding to established small-cell lung cancer (SCLC) cell lines and were able to show specific high-affinity and low-capacity binding sites in some cell lines with a typical receptor size, using sucrose density gradient centrifugation. In addition, we demonstrated marked growth stimulation with testosterone and dehydrotestosterone using different androgen-receptor-positive small-cell lung cancer cell lines. This growth stimulation could be counteracted by the addition of anti-androgens like cyproterone acetate or flutamide. The presence of 5 alpha-reductase activity, 17 beta-hydroxysteroid-dehydrogenase and 3 alpha-hydroxysteroid-dehydrogenase activities could be demonstrated, suggesting testosterone metabolism of small-cell lung cancer cell lines.
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