Self-cycling redox nanoplatform in synergy with mild magnetothermal and autophagy inhibition for efficient cancer therapy

Nano Today ◽  
2022 ◽  
Vol 43 ◽  
pp. 101374
Author(s):  
Miao Wang ◽  
Qian Chen ◽  
Dong Xu ◽  
Zebin Yang ◽  
Jufeng Chen ◽  
...  
Author(s):  
Xiaohong Ma ◽  
Shengfu Piao ◽  
Quentin McAfee ◽  
Ravi K. Amaravadi

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Zhao Ma ◽  
Jin Li ◽  
Kai Lin ◽  
Mythili Ramachandran ◽  
Dalin Zhang ◽  
...  

Abstract Integration of the unique advantages of the fields of drug discovery and drug delivery is invaluable for the advancement of drug development. Here we propose a self-delivering one-component new-chemical-entity nanomedicine (ONN) strategy to improve cancer therapy through incorporation of the self-assembly principle into drug design. A lysosomotropic detergent (MSDH) and an autophagy inhibitor (Lys05) are hybridised to develop bisaminoquinoline derivatives that can intrinsically form nanoassemblies. The selected BAQ12 and BAQ13 ONNs are highly effective in inducing lysosomal disruption, lysosomal dysfunction and autophagy blockade and exhibit 30-fold higher antiproliferative activity than hydroxychloroquine used in clinical trials. These single-drug nanoparticles demonstrate excellent pharmacokinetic and toxicological profiles and dramatic antitumour efficacy in vivo. In addition, they are able to encapsulate and deliver additional drugs to tumour sites and are thus promising agents for autophagy inhibition-based combination therapy. Given their transdisciplinary advantages, these BAQ ONNs have enormous potential to improve cancer therapy.


Author(s):  
Junwei Ye ◽  
Bo Yu ◽  
Haitao Hu ◽  
Dongfang Zhou ◽  
Qiao Jin ◽  
...  

Cisplatin (CDDP) is one of the most successful chemotherapeutic agents for cancer therapy. However, CDDP can activate pro-survival autophagy which inhibits therapeutic efficacy of CDDP. Herein, autophagy inhibitor verteporfin (VTPF)...


Biology ◽  
2019 ◽  
Vol 8 (4) ◽  
pp. 71 ◽  
Author(s):  
Guadalupe Rojas-Sanchez ◽  
Israel Cotzomi-Ortega ◽  
Nidia G. Pazos-Salazar ◽  
Julio Reyes-Leyva ◽  
Paola Maycotte

The manipulation of autophagy for cancer therapy has gained recent interest in clinical settings. Although inhibition of autophagy is currently being used in clinical trials for the treatment of several malignancies, autophagy has been shown to have diverse implications for normal cell homeostasis, cancer cell survival, and signaling to cells in the tumor microenvironment. Among these implications and of relevance for cancer therapy, the autophagic process is known to be involved in the regulation of protein secretion, in tumor cell immunogenicity, and in the regulation of epithelial-to-mesenchymal transition (EMT), a critical step in the process of cancer cell invasion. In this work, we have reviewed recent evidence linking autophagy to the regulation of EMT in cancer and normal epithelial cells, and have discussed important implications for the manipulation of autophagy during cancer therapy.


Biomolecules ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 1363
Author(s):  
Fan Wu ◽  
Yang Liu ◽  
Hui Cheng ◽  
Yun Meng ◽  
Jieyun Shi ◽  
...  

Cell autophagy is a well-known phenomenon in cancer, which limits the efficacy of cancer therapy, especially cancer starvation therapy. Glucose oxidase (GOx), which is considered as an attractive starvation reagent for cancer therapy, can effectively catalyze the conversion of glucose into gluconic acid and hydrogen peroxide (H2O2) in the presence of O2. However, tumor cells adapt to survive by inducing autophagy, limiting the therapy effect. Therefore, anti-cell adaptation via autophagy inhibition could be used as a troubleshooting method to enhance tumor starvation therapy. Herein, we introduce an anti-cell adaptation strategy based on dendritic mesoporous organosilica nanoparticles (DMONs) loaded with GOx and 3-methyladenine (3-MA) (an autophagy inhibition agent) to yield DMON@GOx/3-MA. This formulation can inhibit cell adaptative autophagy after starvation therapy. Our in vitro and in vivo results demonstrate that autophagy inhibition enhances the efficacy of starvation therapy, leading to tumor growth suppression. This anti-cell adaptation strategy will provide a new way to enhance the efficacy of starvation cancer therapy.


2013 ◽  
Author(s):  
Gregor Balaburski ◽  
Julia I-Ju Leu ◽  
Neil Beeharry ◽  
Seth Hayik ◽  
Mark D. Andrake ◽  
...  

2012 ◽  
Vol 249 (1) ◽  
pp. 176-194 ◽  
Author(s):  
Katelin N. Townsend ◽  
Luke R. K. Hughson ◽  
Katrin Schlie ◽  
Vincent I. Poon ◽  
Ashley Westerback ◽  
...  

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