Optimisation of Illumination for Photodynamic Therapy With mTHPC on Normal Colon and a Transplantable Tumour in Rats

2002 ◽  
Vol 17 (2) ◽  
pp. 101-109 ◽  
Author(s):  
H. Tsutsui ◽  
A.J. MacRobert ◽  
A. Curnow ◽  
A. Rogowska ◽  
G. Buonaccorsi ◽  
...  
Keyword(s):  
Photodynamic Therapy ◽  
Normal Colon ◽  
Transplantable Tumour

Photodynamic therapy with WST09 (Tookad): Quantitative studies in normal colon and transplanted tumours

2006 ◽  
Vol 118 (2) ◽  
pp. 477-482 ◽  
Author(s):  
Josephine H. Woodhams ◽  
Alexander J. MacRobert ◽  
Marco Novelli ◽  
Stephen G. Bown
Keyword(s):  
Photodynamic Therapy ◽  
Normal Colon ◽  
Quantitative Studies

scholarly journals Pharmacokinetics of Photogem Using Fluorescence Spectroscopy in Dimethylhydrazine-Induced Murine Colorectal Carcinoma

2012 ◽  
Vol 2012 ◽  
pp. 1-8 ◽  
Author(s):  
Raduan Hage ◽  
Juliana Ferreira ◽  
Vanderlei Salvador Bagnato ◽  
José Dirceu Vollet-Filho ◽  
Hélio Plapler
Keyword(s):  
Photodynamic Therapy ◽  
Colorectal Carcinoma ◽  
Fluorescence Spectroscopy ◽  
Wistar Rats ◽  
Fluorescence Spectra ◽  
Target Organ ◽  
Hematoporphyrin Derivative ◽  
Spectroscopy Technique ◽  
Normal Colon

This study aimed to investigate the pharmacokinetics of a hematoporphyrin derivative in colonic tumors induced by dimethylhydrazine and adjacent normal colon in Wistar rats using anin vivofluorescence spectroscopy technique. In conventional clinical application of photodynamic therapy, the interval between photosensitizer (PS) administration and lesion illumination is often standardized without taking into account variations due to the type or localization of the tumor and intrinsic differences in the microcirculation and vascular permeability of each target organ. The analysis of the fluorescence spectra was based on the intensity of porphyrin emission band centered at around 620 nm in normal colon and colon tumors. The photosensitizer fluorescence intensity rapidly grew for carcinoma and normal colon, reaching the maximum values 1 and 3 hours after PS injection, respectively. Data presented here allow us to verify that the best compromise between selectivity and drug concentration for colon carcinoma in rats took place in the interval between 1 to 4 h after PS injection.

Construction of a near-infrared responsive upconversion nanoplatform against hypoxic tumors via NO-enhanced photodynamic therapy

Nanoscale ◽  
2020 ◽  
Vol 12 (14) ◽  
pp. 7875-7887 ◽  
Author(s):  
Ying Lan ◽  
Xiaohui Zhu ◽  
Ming Tang ◽  
Yihan Wu ◽  
Jing Zhang ◽  
...  
Keyword(s):  
Photodynamic Therapy ◽  
Near Infrared ◽  
Upconversion Nanoparticles

A near-infrared (NIR) activated theranostic nanoplatform based on upconversion nanoparticles (UCNPs) is developed in order to overcome the hypoxia-associated resistance in photodynamic therapy by photo-release of NO upon NIR illumination.

Porphyrin-functionalized coordination star polymers and their potential applications in photodynamic therapy

2019 ◽  
Vol 10 (45) ◽  
pp. 6116-6121 ◽  
Author(s):  
Tan Ji ◽  
Lei Xia ◽  
Wei Zheng ◽  
Guang-Qiang Yin ◽  
Tao Yue ◽  
...  
Keyword(s):  
Photodynamic Therapy ◽  
Self Assembly ◽  
Star Polymers ◽  
New Family ◽  
Potential Applications

We present a new family of porphyrin-functionalized coordination star polymers prepared through combination of coordination-driven self-assembly and post-assembly polymerization. Their self-assembly behaviour in water and potential for photodynamic therapy were demonstrated.

A nitroreductase-activatable near-infrared theranostic photosensitizer for photodynamic therapy under mild hypoxia

2020 ◽  
Vol 56 (43) ◽  
pp. 5819-5822
Author(s):  
Jing Zheng ◽  
Yongzhuo Liu ◽  
Fengling Song ◽  
Long Jiao ◽  
Yingnan Wu ◽  
...  
Keyword(s):  
Photodynamic Therapy ◽  
Triplet State ◽  
Near Infrared ◽  
Mild Hypoxia

In this study, a near-infrared (NIR) theranostic photosensitizer was developed based on a heptamethine aminocyanine dye with a long-lived triplet state.

Dinuclear phosphorescent rhenium(i) complexes as potential anticancer and photodynamic therapy agents

2020 ◽  
Vol 49 (33) ◽  
pp. 11583-11590 ◽  
Author(s):  
Zheng-Yin Pan ◽  
Dai-Hong Cai ◽  
Liang He
Keyword(s):  
Photodynamic Therapy ◽  
Cell Apoptosis ◽  
Lysosomal Dysfunction ◽  
Intracellular Ros

Two dinuclear organometallic Re(i) complexes increase intracellular ROS levels, causing lysosomal dysfunction and cell apoptosis.

Involvement of CFTR in photodynamic therapy-mediated apoptosis

2010 ◽  
Vol 34 (8) ◽  
pp. S44-S44
Author(s):  
Juan Juan Chen ◽  
Xiao Hua Jiang ◽  
Hsiao Chang Chan
Keyword(s):  
Photodynamic Therapy

Hypericin is an encouraging new photosensitizer for photodynamic therapy of esophageal dysplasia/cancer: Antiproliferative and apoptotic effects

2001 ◽  
Vol 120 (5) ◽  
pp. A443-A443
Author(s):  
M LENZ ◽  
M HOEPFNER ◽  
A THEISS ◽  
B LAMPE ◽  
H KASHTAN ◽  
...  
Keyword(s):  
Photodynamic Therapy ◽  
Esophageal Dysplasia ◽  
Apoptotic Effects
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