Imidazole substituted biphenyls: A new class of highly potent and in vivo active inhibitors of P450 17 as potential therapeutics for treatment of prostate cancer

1999 ◽  
Vol 7 (9) ◽  
pp. 1913-1924 ◽  
Author(s):  
Bertil G. Wachall ◽  
Markus Hector ◽  
Yan Zhuang ◽  
Rolf W. Hartmann
2018 ◽  
Vol 115 (18) ◽  
pp. 4761-4766 ◽  
Author(s):  
Bethany Powell Gray ◽  
Linsley Kelly ◽  
Douglas P. Ahrens ◽  
Ashley P. Barry ◽  
Christina Kratschmer ◽  
...  

Therapies that can eliminate both local and metastatic prostate tumor lesions while sparing normal organ tissue are desperately needed. With the goal of developing an improved drug-targeting strategy, we turned to a new class of targeted anticancer therapeutics: aptamers conjugated to highly toxic chemotherapeutics. Cell selection for aptamers with prostate cancer specificity yielded the E3 aptamer, which internalizes into prostate cancer cells without targeting normal prostate cells. Chemical conjugation of E3 to the drugs monomethyl auristatin E (MMAE) and monomethyl auristatin F (MMAF) yields a potent cytotoxic agent that efficiently kills prostate cancer cells in vitro but does not affect normal prostate epithelial cells. Importantly, the E3 aptamer targets tumors in vivo and treatment with the MMAF-E3 conjugate significantly inhibits prostate cancer growth in mice, demonstrating the in vivo utility of aptamer–drug conjugates. Additionally, we report the use of antidotes to block E3 aptamer–drug conjugate cytotoxicity, providing a safety switch in the unexpected event of normal cell killing in vivo.


2007 ◽  
Vol 177 (4S) ◽  
pp. 210-211 ◽  
Author(s):  
Joshua M. Stern ◽  
Jennifer Stanfield ◽  
Jer-Tsang Hsieh ◽  
Jeffrey A. Cadeddu

2006 ◽  
Vol 175 (4S) ◽  
pp. 257-257
Author(s):  
Jennifer Sung ◽  
Qinghua Xia ◽  
Wasim Chowdhury ◽  
Shabana Shabbeer ◽  
Michael Carducci ◽  
...  

2006 ◽  
Vol 175 (4S) ◽  
pp. 255-256
Author(s):  
Cyrill A. Rentsch ◽  
Jeroen Buijs ◽  
Geertje Van der Horst ◽  
Petra Van Overveld ◽  
Antoinette Wetterwald ◽  
...  

2016 ◽  
Author(s):  
Alysha Bhatti ◽  
Almeida Gilberto Serrano de ◽  
Serena Tommasini Ghelfi ◽  
Alwyn Dart ◽  
Anabel Varela-Carver ◽  
...  

2018 ◽  
Vol 8 (1) ◽  
pp. 62 ◽  
Author(s):  
Julianna Maria Santos ◽  
Fazle Hussain

Background: Reduced levels of magnesium can cause several diseases and increase cancer risk. Motivated by magnesium chloride’s (MgCl2) non-toxicity, physiological importance, and beneficial clinical applications, we studied its action mechanism and possible mechanical, molecular, and physiological effects in prostate cancer with different metastatic potentials.Methods: We examined the effects of MgCl2, after 24 and 48 hours, on apoptosis, cell migration, expression of epithelial mesenchymal transition (EMT) markers, and V-H+-ATPase, myosin II (NMII) and the transcription factor NF Kappa B (NFkB) expressions.Results: MgCl2 induces apoptosis, and significantly decreases migration speed in cancer cells with different metastatic potentials.  MgCl2 reduces the expression of V-H+-ATPase and myosin II that facilitates invasion and metastasis, suppresses the expression of vimentin and increases expression of E-cadherin, suggesting a role of MgCl2 in reversing the EMT. MgCl2 also significantly increases the chromatin condensation and decreases NFkB expression.Conclusions: These results suggest a promising preventive and therapeutic role of MgCl2 for prostate cancer. Further studies should explore extending MgCl2 therapy to in vivo studies and other cancer types.Keywords: Magnesium chloride, prostate cancer, migration speed, V-H+-ATPase, and EMT.


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