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Pippione et al.                                                                                                                                                             Steroidogenic enzymes in prostate cancer






































































           Figure 10: Structures of some nonsteroidal 17b-HSD3 inhibitors


           benzophenone-1 [80] , tributyltin chloride and triphenyltin   inhibitors of HSD17B3 have been designed and
           chloride [86]   have  been  identified  as  HSD17B3   developed,  but  none  of  them  has  reached  the
           inhibitors, but their use is considered harmful to normal   clinic. One reason for this might be the difficulty in
           sexual development, since this enzyme plays an     identifying an appropriate species to conduct the
           essential role in that process.                    functional assays. Due to little sequence homology
                                                              between human and other species isoforms, very
           In the last decade, several steroidal and non-steroidal   potent inhibitors of the human enzyme show little
                           Journal of Cancer Metastasis and Treatment ¦ Volume 3 ¦ December 12, 2017      343
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