Jellyfish Sting—In Vivo Imaging for Diagnosis and Treatment Monitoring

2020 ◽  
Vol 156 (3) ◽  
pp. 348
Author(s):  
Alessandro Di Stefani ◽  
Simone Cappilli ◽  
Ketty Peris
2007 ◽  
Vol 364-366 ◽  
pp. 1100-1104 ◽  
Author(s):  
Liang Zhong Xiang ◽  
Fei Fan Zhou

Photoacoustic imaging (also called optoacoustic or thermoacoustic imaging) can image vascularity clearly with simultaneous high contrast and high spatial resolution, and has the potential to be an application for tumor diagnosis and treatment monitoring. In a unique photoacoustic system, a single pulse laser beam was used as the light source for both cancer treatment and for concurrently generating ultrasound signals for photoacoustic imaging. The photoacoustic system was used to detect early tumor on the rat back, and the vascular structure around the tumor could be imaged clearly with optimal contrast. This system was also used to monitoring damage of the vascular structures before, during and after photodynamic therapy of tumor. This work demonstrates that photoacoustic imaging can potentially be used to guide photodynamic therapy and other phototherapies using vascular changes during treatment. Prospective application of photoacoustic imaging is to characterize and monitor the accumulation of gold nanoshells in vivo to guide nanoshell-based thermal tumor therapy.


2014 ◽  
Vol 235 (2) ◽  
pp. e300
Author(s):  
M. Semjeni ◽  
G. Foldes ◽  
K. Szigeti ◽  
N. Kovacs ◽  
D. Mathe

2020 ◽  
Vol 48 (6) ◽  
pp. 2657-2667
Author(s):  
Felipe Montecinos-Franjola ◽  
John Y. Lin ◽  
Erik A. Rodriguez

Noninvasive fluorescent imaging requires far-red and near-infrared fluorescent proteins for deeper imaging. Near-infrared light penetrates biological tissue with blood vessels due to low absorbance, scattering, and reflection of light and has a greater signal-to-noise due to less autofluorescence. Far-red and near-infrared fluorescent proteins absorb light >600 nm to expand the color palette for imaging multiple biosensors and noninvasive in vivo imaging. The ideal fluorescent proteins are bright, photobleach minimally, express well in the desired cells, do not oligomerize, and generate or incorporate exogenous fluorophores efficiently. Coral-derived red fluorescent proteins require oxygen for fluorophore formation and release two hydrogen peroxide molecules. New fluorescent proteins based on phytochrome and phycobiliproteins use biliverdin IXα as fluorophores, do not require oxygen for maturation to image anaerobic organisms and tumor core, and do not generate hydrogen peroxide. The small Ultra-Red Fluorescent Protein (smURFP) was evolved from a cyanobacterial phycobiliprotein to covalently attach biliverdin as an exogenous fluorophore. The small Ultra-Red Fluorescent Protein is biophysically as bright as the enhanced green fluorescent protein, is exceptionally photostable, used for biosensor development, and visible in living mice. Novel applications of smURFP include in vitro protein diagnostics with attomolar (10−18 M) sensitivity, encapsulation in viral particles, and fluorescent protein nanoparticles. However, the availability of biliverdin limits the fluorescence of biliverdin-attaching fluorescent proteins; hence, extra biliverdin is needed to enhance brightness. New methods for improved biliverdin bioavailability are necessary to develop improved bright far-red and near-infrared fluorescent proteins for noninvasive imaging in vivo.


2005 ◽  
Vol 25 (1_suppl) ◽  
pp. S588-S588
Author(s):  
Vladimir Kepe ◽  
Gregory M Cole ◽  
Jie Liu ◽  
Dorothy G Flood ◽  
Stephen P Trusko ◽  
...  

2016 ◽  
Vol 54 (12) ◽  
pp. 1343-1404
Author(s):  
A Ghallab ◽  
R Reif ◽  
R Hassan ◽  
AS Seddek ◽  
JG Hengstler

2016 ◽  
Author(s):  
Alysha Bhatti ◽  
Almeida Gilberto Serrano de ◽  
Serena Tommasini Ghelfi ◽  
Alwyn Dart ◽  
Anabel Varela-Carver ◽  
...  

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