scholarly journals The Destruction Of Laser-Induced Phase-Transition Nanoparticles Triggered By Low-Intensity Ultrasound: An Innovative Modality To Enhance The Immunological Treatment Of Ovarian Cancer Cells

2019 ◽  
Vol Volume 14 ◽  
pp. 9377-9393 ◽  
Author(s):  
Wan Xie ◽  
Shenyin Zhu ◽  
Biyong Yang ◽  
Chunyan Chen ◽  
Shuning Chen ◽  
...  
Keyword(s):  
Phase Transition ◽  
Ovarian Cancer ◽  
Cancer Cells ◽  
Ovarian Cancer Cells ◽  
Low Intensity ◽  
Immunological Treatment ◽  
Low Intensity Ultrasound

scholarly journals Exposure to low intensity ultrasound removes paclitaxel cytotoxicity in breast and ovarian cancer cells

BMC Cancer ◽  
2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Celina Amaya ◽  
Shihua Luo ◽  
Julio Baigorri ◽  
Rogelio Baucells ◽  
Elizabeth R. Smith ◽  
...  
Keyword(s):  
Ovarian Cancer ◽  
Shock Waves ◽  
Cancer Cells ◽  
Metastatic Breast ◽  
Ovarian Cancer Cells ◽  
Microtubule Cytoskeleton ◽  
Microtubule Network ◽  
Ultrasound Waves ◽  
Low Intensity ◽  
Low Intensity Ultrasound

Abstract Background Paclitaxel (Taxol) is a microtubule-stabilizing drug used to treat several solid tumors, including ovarian, breast, non-small cell lung, and pancreatic cancers. The current treatment of ovarian cancer is chemotherapy using paclitaxel in combination with carboplatin as a frontline agent, and paclitaxel is also used in salvage treatment as a second line drug with a dose intensive regimen following recurrence. More recently, a dose dense approach for paclitaxel has been used to treat metastatic breast cancer with success. Paclitaxel binds to beta tubulin with high affinity and stabilizes microtubule bundles. As a consequence of targeting microtubules, paclitaxel kills cancer cells through inhibition of mitosis, causing mitotic catastrophes, and by additional, not yet well defined non-mitotic mechanism(s). Results In exploring methods to modulate activity of paclitaxel in causing cancer cell death, we unexpectedly found that a brief exposure of paclitaxel-treated cells in culture to low intensity ultrasound waves prevented the paclitaxel-induced cytotoxicity and death of the cancer cells. The treatment with ultrasound shock waves was found to transiently disrupt the microtubule cytoskeleton and to eliminate paclitaxel-induced rigid microtubule bundles. When cellular microtubules were labelled with a fluorescent paclitaxel analog, exposure to ultrasound waves led to the disassembly of the labeled microtubules and localization of the signals to perinuclear compartments, which were determined to be lysosomes. Conclusions We suggest that ultrasound disrupts the paclitaxel-induced rigid microtubule cytoskeleton, generating paclitaxel bound fragments that undergo degradation. A new microtubule network forms from tubulins that are not bound by paclitaxel. Hence, ultrasound shock waves are able to abolish paclitaxel impact on microtubules. Thus, our results demonstrate that a brief exposure to low intensity ultrasound can reduce and/or eliminate cytotoxicity associated with paclitaxel treatment of cancer cells in cultures.

Cytotoxic effects of disulfiram and synergism with cisplatin on ovarian cancer cells in vitro

2018 ◽  
Author(s):  
F Guo ◽  
Z Yang ◽  
J Xu ◽  
J Sehouli ◽  
AE Albers ◽  
...  
Keyword(s):  
Ovarian Cancer ◽  
Cancer Cells ◽  
Ovarian Cancer Cells ◽  
Cytotoxic Effects
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