A cell-penetrating peptide derived from mammalian cell uptake protein of Mycobacterium tuberculosis

2006 ◽  
Vol 353 (1) ◽  
pp. 7-14 ◽  
Author(s):  
Sangwei Lu ◽  
Leah A. Tager ◽  
Sadhana Chitale ◽  
Lee W. Riley
Cancers ◽  
2021 ◽  
Vol 13 (9) ◽  
pp. 2245
Author(s):  
Hideo Takakura ◽  
Honoka Sato ◽  
Kohei Nakajima ◽  
Motofumi Suzuki ◽  
Mikako Ogawa

In molecular imaging, a targeting strategy with ligands is widely used because specificity can be significantly improved. In fluorescence imaging based on a targeting strategy, the fluorescent dyes conjugated with ligands may affect the targeting efficiency depending on the chemical properties. Herein, we used a cell-penetrating peptide (CPP) as a ligand with a variety of fluorescent cyanine dye. We investigated in vitro and in vivo cell uptake of the dye-CPP conjugates when cyanine dyes with differing charge and hydrophilicity/lipophilicity were used. The results showed that the conjugates with positively charged and lipophilic cyanine dyes accumulated in cancer cells in vitro, but there was almost no accumulation in tumors in vivo. On the other hand, the conjugates with negatively charged and hydrophilic cyanine dyes did not accumulate in cancer cells in vitro, but fluorescence was observed in tumors in vivo. These results show that there are some cases in which the cell uptake of the dye-peptide conjugates may differ significantly between in vitro and in vivo experiments due to the chemical properties of the fluorescent dyes. This suggests that attention should be paid to the chemical properties of fluorescent dyes in fluorescence imaging based on a targeting strategy.


2012 ◽  
Vol 39 (8) ◽  
pp. 1202-1212 ◽  
Author(s):  
Susan Richter ◽  
Vincent Bouvet ◽  
Melinda Wuest ◽  
Ralf Bergmann ◽  
Joerg Steinbach ◽  
...  

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Makoto Oba ◽  
Takuma Kato ◽  
Kaori Furukawa ◽  
Masakazu Tanaka

2007 ◽  
Vol 18 (4) ◽  
pp. 1325-1331 ◽  
Author(s):  
Adams Amantana ◽  
Hong M. Moulton ◽  
Melissa L. Cate ◽  
Muralimohan T. Reddy ◽  
Tom Whitehead ◽  
...  

2011 ◽  
Vol 112 (9) ◽  
pp. 2454-2462
Author(s):  
Seung Won Yang ◽  
Seung-Min Lee ◽  
Eun Young Choi ◽  
Kyung Hye Lee ◽  
Soo Hyuk Kim ◽  
...  

Biomaterials ◽  
2014 ◽  
Vol 35 (13) ◽  
pp. 4082-4087 ◽  
Author(s):  
Likun Fei ◽  
Li-Peng Yap ◽  
Peter S. Conti ◽  
Wei-Chiang Shen ◽  
Jennica L. Zaro

2020 ◽  
Vol 17 ◽  
pp. 250-256
Author(s):  
Shanna J. Smith ◽  
Caroline M. Li ◽  
Robert G. Lingeman ◽  
Robert J. Hickey ◽  
Yilun Liu ◽  
...  

RSC Advances ◽  
2021 ◽  
Vol 11 (57) ◽  
pp. 36116-36124
Author(s):  
Omar Paulino da Silva Filho ◽  
Muhanad Ali ◽  
Rike Nabbefeld ◽  
Daniel Primavessy ◽  
Petra H. Bovee-Geurts ◽  
...  

Noncovalent functionalization with acylated cell-penetrating peptides achieves an efficient cellular uptake of PLGA and PEG-PLGA nanoparticles.


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