scholarly journals Effect of Micelle-Incorporated Cisplatin With Sizes Ranging From 8 to 40 nm for the Therapy of Lewis Lung Carcinoma

2021 ◽  
Vol 12 ◽  
Author(s):  
Zhicheng Wang ◽  
Yumin Li ◽  
Tong Zhang ◽  
Hongxia Li ◽  
Zhao Yang ◽  
...  

Insufficient transport of therapeutic cargo into tumor bed is a bottleneck in cancer nanomedicine. Block copolymers are promising carriers with smaller particle size by ratio modification. Here, we constructed cisplatin nanoparticles with sizes ranging from 8 to 40 nm to study the permeability and therapy of Lewis lung carcinoma. We synthesized methoxypoly(ethylene glycol)2000-block poly(L-glutamic acid sodium salt)1979 loading cisplatin through complexation reaction. The cisplatin nanomedicine has high drug loading and encapsulation efficiency. In vitro data demonstrated that cisplatin nanoparticles had equivalent growth-inhibiting effects on Lewis lung carcinoma cells compared to free cisplatin. In vivo evidences showed cisplatin nanoparticles had superior antitumor effects on the Lewis lung carcinoma mouse model with no obvious side effects. All results indicated that optimizing the ratio of block copolymers to obtain smaller sized nanomedicine could act as a promising strategy for overcoming the inadequate accumulation in poorly vascularized tumors.

2006 ◽  
Vol 1 (1) ◽  
pp. 73-79 ◽  
Author(s):  
Jae-Ho Lee ◽  
Eun-Ok Lee ◽  
Hyo-Jung Lee ◽  
Kwan-Hyun Kim ◽  
Kyoo-Seok Ahn ◽  
...  

2003 ◽  
Vol 07 (03) ◽  
pp. 155-161 ◽  
Author(s):  
Dae-Seog Lim ◽  
Si-Hwan Ko ◽  
Dong-Hoon Won ◽  
Chang-Hee Lee ◽  
Won-Young Lee

A biological significance of photodynamic therapy (PDT) with a new porphyrin derivative, DH-I-180-3 (Max. Abs. 666 nm), was examined. Experimental PDT with DH-I-180-3 against Lewis Lung Carcinoma 1 (LLC1) cells was designed in vitro and in vivo. For the comparison, PDT with an established photosensitizer, Photofrin®, was done. When the cells were treated with DH-I-180-3 (1.0 μg/ml) in vitro, the cells became fatally susceptible to the light (1.2 J/cm2) as early as in 1 h. All of these cells were irreversibly damaged in 24 h after light irradiation and categorized as necrosis. These were not seen in cells treated with Photofrin® for more than 4 h and remained unharmed by the light until the end of experiments. Mice (C57BL/6J) bearing LLC1 tumor were treated (intravenously) with DH-I-180-3 (400 to 800 μg/kg) or with Photofrin® (2 mg/kg) for 4 h. Following the light irradiation (1.2 J/cm2), retarded tumor growth was significant in mice treated with DH-I-180-3 compared with those treated with Photofrin®/PDT. Survival of mice receiving DH-I-180-3/PDT was prolonged approximately 30% and 40% compared with that of mice in a Photofrin® group. In conclusion, DH-I-180-3 absorbs a longer light wavelength, and instantaneously accumulates in tumor cells to make them susceptible to the light. In mice, a significantly low dose of DH-I-180-3 as little as 400 μg/kg was sufficient to produce a successful PDT result. Thus, we conclude that DH-I-180-3 is an effective photosensitizer to be developed.


Materials ◽  
2021 ◽  
Vol 14 (20) ◽  
pp. 6114
Author(s):  
Iryna Horak ◽  
Svitlana Prylutska ◽  
Iryna Krysiuk ◽  
Serhii Luhovskyi ◽  
Oleksii Hrabovsky ◽  
...  

Effective targeting of metastasis is considered the main problem in cancer therapy. The development of herbal alkaloid Berberine (Ber)-based anticancer drugs is limited due to Ber’ low effective concentration, poor membrane permeability, and short plasma half-life. To overcome these limitations, we used Ber noncovalently bound to C60 fullerene (C60). The complexation between C60 and Ber molecules was evidenced with computer simulation. The aim of the present study was to estimate the effect of the free Ber and C60-Ber nanocomplex in a low Ber equivalent concentration on Lewis lung carcinoma cells (LLC) invasion potential, expression of epithelial-to-mesenchymal transition (EMT) markers in vitro, and the ability of cancer cells to form distant lung metastases in vivo in a mice model of LLC. It was shown that in contrast to free Ber its nanocomplex with C60 demonstrated significantly higher efficiency to suppress invasion potential, to downregulate the level of EMT-inducing transcription factors SNAI1, ZEB1, and TWIST1, to unblock expression of epithelial marker E-cadherin, and to repress cancer stem cells-like markers. More importantly, a relatively low dose of C60-Ber nanocomplex was able to suppress lung metastasis in vivo. These findings indicated that сomplexation of natural alkaloid Ber with C60 can be used as an additional therapeutic strategy against aggressive lung cancer.


2010 ◽  
Vol 111 (4) ◽  
pp. 899-910 ◽  
Author(s):  
Vincent Kam Wai Wong ◽  
Simon Shiu Fai Cheung ◽  
Ting Li ◽  
Zhi-Hong Jiang ◽  
Jing-Rong Wang ◽  
...  

Author(s):  
Arvind Pandey ◽  
Veronica Vighetto ◽  
Nicola Di Marzio ◽  
Matteo Hirsch ◽  
Nicola Ferrante ◽  
...  

It has been suggested that particle size plays an important role in determining the genotoxicity of gold nanoparticles (GNPs). The purpose of this study was to compare the potential radio-sensitization effects of two different sized GNPs (3.9 and 37.4 nm) fabricated and examined in vitro in Lewis Lung carcinoma (LLC) as a model of non-small cell lung cancer through use of comet and clonogenic assays. After the treatment of 2Gy X-ray irradiation, both particle sizes demonstrated increased DNA damage when compared to treatment with particles only and radiation alone. This radio-sensitization was further translated into a reduction in cell survival demonstrated by clonogenicity. This work indicates that GNPs of both sizes induce DNA damage in LLC cells at the tested concentrations, whereas the 37.4 nm particle size treatment group demonstrated greater significance in vitro. The presented data aids in the evaluation of the radiobiological response of Lewis Lung carcinoma cells treated with gold nanoparticles.


1982 ◽  
Vol 18 (10) ◽  
pp. 973-978 ◽  
Author(s):  
G. Starace ◽  
G. Badaracco ◽  
C. Greco ◽  
A. Sacchi ◽  
G. Zupi

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