Effects of anti-cancer drug doxorubicin on endogenous biomarkers NAD(P)H, FAD and Trp in prostate cancer cells: a FLIM Study

2017 ◽  
Author(s):  
Shagufta Rehman Alam ◽  
Horst Wallrabe ◽  
Zdenek Svindrych ◽  
Kathryn G. Christopher ◽  
Dhyan Chandra ◽  
...  
Micromachines ◽  
2021 ◽  
Vol 12 (5) ◽  
pp. 532
Author(s):  
Da Luo ◽  
Na Liu ◽  
Yang Chen ◽  
Yan Peng ◽  
Tao Yue ◽  
...  

The identification and treatment of androgen-independent prostate cancer are both challenging and significant. In this work, high-throughput deformability cytometry was employed to assess the effects of two anti-cancer drugs, docetaxel and enzalutamide, on androgen-sensitive prostate cancer cells (LNCaP) and androgen-independent prostate cancer cells (PC-3), respectively. The quantified results show that PC-3 and LNCaP present not only different intrinsic physical properties but also different physical responses to the same anti-cancer drug. PC-3 cells possess greater stiffness and a smaller size than LNCaP cells. As the docetaxel concentration increases, PC-3 cells present an increase in stiffness and size, but LNCaP cells only present an increase in stiffness. As the enzalutamide concentration increases, PC-3 cells present no physical changes but LNCaP cells present changes in both cell size and deformation. These results demonstrated that cellular physical properties quantified by the deformability cytometry are effective indicators for identifying the androgen-independent prostate cancer cells from androgen-sensitive prostate cancer cells and evaluating drug effects on these two types of prostate cancer.


Molecules ◽  
2021 ◽  
Vol 26 (11) ◽  
pp. 3260
Author(s):  
Yu-Hsiang Lin ◽  
Chi-Chung Wang ◽  
Ying-Hung Lin ◽  
Bing-Huei Chen

Anti-cancer activity of catechin nanoemulsions prepared from Oolong tea leaf waste was studied on prostate cancer cells DU-145 and DU-145-induced tumors in mice. Catechin nanoemulsions composed of lecithin, Tween-80 and water in an appropriate proportion was prepared with high stability, particle size of 11.3 nm, zeta potential of −67.2 mV and encapsulation efficiency of 83.4%. Catechin nanoemulsions were more effective than extracts in inhibiting DU-145 cell growth, with the IC50 being 13.52 and 214.6 μg/mL, respectively, after 48 h incubation. Furthermore, both catechin nanoemulsions and extracts could raise caspase-8, caspase-9 and caspase-3 activities for DU-145 cell apoptosis, arresting the cell cycle at S and G2/M phases. Compared to control, catechin nanoemulsion at 20 μg/mL and paclitaxel at 10 μg/mL were the most effective in reducing tumor volume by 41.3% and 52.5% and tumor weight by 77.5% and 90.6% in mice, respectively, through a decrease in EGF and VEGF levels in serum.


2021 ◽  
Vol 11 ◽  
Author(s):  
Zongliang Lu ◽  
Wei Song ◽  
Yaowen Zhang ◽  
Changpeng Wu ◽  
Mingxing Zhu ◽  
...  

Castration-resistant (androgen-independent) and PTEN-deficient prostate cancer is a challenge in clinical practice. Sorafenib has been recommended for the treatment of this type of cancer, but is associated with several adverse effects. Platycodin D (PD) is a triterpene saponin with demonstrated anti-cancer effects and a good safety profile. Previous studies have indicated that PC3 cells (PTEN -/-, AR -/-) are sensitive to PD, suggesting that it may also be a useful treatment for castration-resistance prostate cancer. We herein investigated the effects of combining PD with sorafenib to treat PTEN-deficient prostate cancer cells. Our data show that PD promotes sorafenib-induced apoptosis and cell cycle arrest in PC3 cells. Of interest, PD only promoted the anti-cancer effects of sorafenib in Akt-positive and PTEN-negative prostate cancer cells. Mechanistic studies revealed that PD promoted p-Akt ubiquitination by increasing the p-Akt level. PD also increased the protein and mRNA expression of FOXO3a, the downstream target of Akt. Meanwhile, PD promoted the activity of FOXO3a and increased the protein expression of Fasl, Bim and TRAIL. Interestingly, when FOXO3a expression was inhibited, the antitumor effects of both PD and sorafenib were individually inhibited, and the more potent effects of the combination treatment were inhibited. Thus, the combination of PD and sorafenib may exert potent anti-cancer effects specifically via FOXO3a. The use of Akt inhibitors or FOXO3a agonists, such as PD, may represent a promising approach for the treatment of androgen-independent and PTEN-deficient prostate cancer.


1999 ◽  
Vol 5 (S2) ◽  
pp. 1110-1111
Author(s):  
Maureen Ripple ◽  
Meghan Taylo ◽  
Chris Huese ◽  
Heide Schatte

Taxol has been used as anti-cancer compound against prostate, ovarian, and metastatic breast cancer. While the most obvious effect of taxol is bundeling of microtubules and mitotic arrest, recent studies have demonstrated that taxol is able to induce intranucleosomal DNA fragmentation and typical morphological features of apoptosis in a number of solid tumor cells. These results indicate that taxol may exert its anti-tumor effects via secondary mechanisms which may or may not be related to its primary effects on microtubules. It has been shown that taxol-induced microtubular changes and G2/M arrest are associated with the release of the electron transfer protein cytochrome C from mitochondria into the cytosol. Cytochrome C then binds to APAF-1 (a human homolog of the ced-4 gene of C. elegans), which binds, cleaves, and activates caspase- 9, ultimately resulting in the cleavage and activity of caspase-3. We investigated the effects of taxol (100nM) on microtubules, on DNA, and on the pre-apoptotic mitochondrial events using LNCaP and DU145 prostate cancer cells.


APOPTOSIS ◽  
2006 ◽  
Vol 11 (7) ◽  
pp. 1205-1214 ◽  
Author(s):  
K. O'Connor ◽  
C. Gill ◽  
M. Tacke ◽  
F.-J. K. Rehmann ◽  
K. Strohfeldt ◽  
...  

Phytomedicine ◽  
2013 ◽  
Vol 20 (14) ◽  
pp. 1306-1314 ◽  
Author(s):  
Andrea Dueregger ◽  
Fabian Guggenberger ◽  
Jan Barthelmes ◽  
Günther Stecher ◽  
Markus Schuh ◽  
...  

PLoS ONE ◽  
2015 ◽  
Vol 10 (10) ◽  
pp. e0141681 ◽  
Author(s):  
Dong Li ◽  
Yu Lu ◽  
Peng Sun ◽  
Li-Xing Feng ◽  
Miao Liu ◽  
...  

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