scholarly journals Cetuximab-conjugated perfluorohexane/gold nanoparticles for low intensity focused ultrasound diagnosis ablation of thyroid cancer treatment

Author(s):  
Ying Liu ◽  
Yue Ma ◽  
Xiaoshan Peng ◽  
Lingling Wang ◽  
Haixia Li ◽  
...  
Author(s):  
Yue Ma ◽  
Lingling Wang ◽  
Haixia Li ◽  
Wen Cheng ◽  
Xiulan Zheng ◽  
...  

Abstract Chemotherapeutic efficacy plays a significant role in the development of nanotheranostic systems for drug delivery in tumor cells. In this study, we demonstrate the self-assembly of C225 conjugate, Perfluorohexane/Gold Nanoparticles (Au-PFH-NPs), which results in low-intensity focused ultrasound diagnosis ablation of thyroid cancer treatment. Cetuximab-Conjugated Perfluorohexane/Gold Nanoparticles (C-Au-PFH-NPs) showed excellent stability in water, PBS, and 20% rat serum. Transmission electron microscopy images revealed the effective construction of C-Au-PFH-NPs with commonly spherical assemblies. The incubation of C625 thyroid carcinoma with C-Au-PFH-NPs triggered apoptosis, which was confirmed by flow cytometry analysis. The C-Au-PFH-NPs showed remarkable antitumor efficacy in human thyroid carcinoma xenografts. The histopathological results additionally confirm the achieved outcomes. Furthermore, we successfully examined the efficiency of C-Au-PFH-NPs when using the thyroid carcinoma low-intensity focused ultrasound (LIFUS) diagnostic imaging in vivo. These findings are clear for LIFUS agents with high performing images. It is also identified that different therapeutic purposes will have extensive potential for future biomedical purposes.


2020 ◽  
Author(s):  
Yue Ma ◽  
Lingling Wang ◽  
Haixia Li ◽  
Wen Cheng ◽  
Xiulan Zheng ◽  
...  

Abstract Chemotherapeutic efficacy can be significantly developed nanotheranostics systems of drug delivery in tumor cells. In this work, we have demonstrated that the self-assembled by C225 conjugates Au-PFH-NPs (C-Au-PFH-NPs) for low intensity focused ultrasound diagnosis ablation of thyroid cancer treatment. C-Au-PFH-NPs have shown excellent stability in water, PBS and 20% rat serum. Transmission electron microscopy (TEM) images also exposed the effective construction of C-Au-PFH-NPs with commonly spherical sized assemblies. The incubation of the C625 thyroid carcinoma with C-Au-PFH-NPs triggers apoptosis, which was confirmed by the flowcytometry analysis. The C-Au-PFH-NPs, with remarkably displays the potent antitumor efficacy in a human thyroid carcinoma xenografts. A histopathological result reveals that precisely achieved to additional confirm these outcomes. Further, we successfully examined the efficiency of C-Au-PFH-NPs when used the thyroid carcinoma low intensity focused ultrasound diagnosis imaging (LIFUS) in vivo. These findings clearable for LIFUS agents with high performing image and different therapeutic purpose will have extensive possible for the future biomedical purposes.


2020 ◽  
Author(s):  
Ming Qi ◽  
Yufeng Zhu ◽  
Wenjuan Wang ◽  
Shufeng Gao ◽  
Sihui Nie ◽  
...  

Abstract Chemotherapeutic efficacy can be significantly developed nanotheranostics systems of drug delivery in tumor cells. In this work, we have demonstrated that the self-assembled by C225 conjugates Gd-PFH-NPs (C-Gd-PFH-NPs) for low intensity focused ultrasound diagnosis ablation of thyroid cancer treatment. C-Gd-PFH-NPs have shown excellent stability in PBS. Transmission electron microscopy (TEM) images also exposed the effective construction of C-Gd-PFH-NPs with commonly spherical sized assemblies. The incubation of the C625 thyroid carcinoma with C-Gd-PFH-NPs triggers apoptosis, which was confirmed by the flowcytometry analysis. The C-Gd-PFH-NPs, with remarkably displays the potent antitumor efficacy in a human C625 thyroid carcinoma xenografts. A histopathological result reveals that precisely achieved to additional confirm these outcomes. Further, we successfully examined the efficiency of C-Gd-PFH-NPs when used the thyroid carcinoma low intensity focused ultrasound diagnosis imaging (LIFUS) in vivo. These findings clearable for LIFUS agents with high performing image and different therapeutic purpose will have extensive possible for the future biomedical purposes.


2011 ◽  
Vol 1 (2) ◽  
pp. 179-188
Author(s):  
GonJun Kim ◽  
S. R. Park ◽  
G. C. Kim ◽  
Jae Koo (J. K.) Lee

2021 ◽  
pp. 135977
Author(s):  
Abigail Hellman ◽  
Alicia Clum ◽  
Teresa Maietta ◽  
Adithya Srikanthan ◽  
Vraj Patel ◽  
...  

2018 ◽  
Vol 128 (3) ◽  
pp. 875-884 ◽  
Author(s):  
Robert F. Dallapiazza ◽  
Kelsie F. Timbie ◽  
Stephen Holmberg ◽  
Jeremy Gatesman ◽  
M. Beatriz Lopes ◽  
...  

OBJECTIVEUltrasound can be precisely focused through the intact human skull to target deep regions of the brain for stereotactic ablations. Acoustic energy at much lower intensities is capable of both exciting and inhibiting neural tissues without causing tissue heating or damage. The objective of this study was to demonstrate the effects of low-intensity focused ultrasound (LIFU) for neuromodulation and selective mapping in the thalamus of a large-brain animal.METHODSTen Yorkshire swine (Sus scrofa domesticus) were used in this study. In the first neuromodulation experiment, the lemniscal sensory thalamus was stereotactically targeted with LIFU, and somatosensory evoked potentials (SSEPs) were monitored. In a second mapping experiment, the ventromedial and ventroposterolateral sensory thalamic nuclei were alternately targeted with LIFU, while both trigeminal and tibial evoked SSEPs were recorded. Temperature at the acoustic focus was assessed using MR thermography. At the end of the experiments, all tissues were assessed histologically for damage.RESULTSLIFU targeted to the ventroposterolateral thalamic nucleus suppressed SSEP amplitude to 71.6% ± 11.4% (mean ± SD) compared with baseline recordings. Second, we found a similar degree of inhibition with a high spatial resolution (∼ 2 mm) since adjacent thalamic nuclei could be selectively inhibited. The ventromedial thalamic nucleus could be inhibited without affecting the ventrolateral nucleus. During MR thermography imaging, there was no observed tissue heating during LIFU sonications and no histological evidence of tissue damage.CONCLUSIONSThese results suggest that LIFU can be safely used to modulate neuronal circuits in the central nervous system and that noninvasive brain mapping with focused ultrasound may be feasible in humans.


2014 ◽  
Vol 347 (1) ◽  
pp. 46-53 ◽  
Author(s):  
Jihyoun Lee ◽  
Dev Kumar Chatterjee ◽  
Min Hyuk Lee ◽  
Sunil Krishnan

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