Influence of metronidazole and some electron acceptors on the chlorin e6 photosensitized killing of Ehrlich carcinoma cells

1992 ◽  
Author(s):  
V. Chekulayev ◽  
Igor Shevchuk ◽  
Virgo T. Mihkelsoo ◽  
A. P. Kallikorm
2014 ◽  
Vol 24 (2) ◽  
pp. 163-163
Author(s):  
Olga A. Diabina ◽  
◽  
Maksim V. Ostankov ◽  
Nikolay A. Bondarovich ◽  
Anatoliy N. Goltsev ◽  
...  

2014 ◽  
Vol 9 (1) ◽  
pp. 91-112
Author(s):  
Neamat HA Osman ◽  
Faten M Zahran ◽  
Rokaia E Maarouf

2012 ◽  
Vol 7 (4) ◽  
pp. 1934578X1200700 ◽  
Author(s):  
Shamil Sh. Afiyatullov ◽  
Olesya I. Zhuravleva ◽  
Alexandr S. Antonov ◽  
Anatoly I. Kalinovsky ◽  
Michail V. Pivkin ◽  
...  

A new alkaloid, fumiquinazoline K (1), and a new nordammarane triterpenoid (2), together with three known diketopiperazines (3-5) and tryptoquivaline F (6) have been isolated from a marine strain of Aspergillus fumigatus KMM 4631 associated with the soft coral Sinularia sp. Their structures were determined by HR-MS and 1D and 2D NMR. Compounds 3-5 exhibit weak cytotoxicity against cytoplasm non-specific esterase in Ehrlich carcinoma cells. Compound 3 also induces early apoptosis of the same cells in a non-toxic range of concentrations.


Cell Calcium ◽  
1995 ◽  
Vol 18 (2) ◽  
pp. 174-175
Author(s):  
A. Gamberucci ◽  
R. Fulceri ◽  
P. Tarroni ◽  
R. Giunti ◽  
P. Marcolongo ◽  
...  

1968 ◽  
Vol 46 (7) ◽  
pp. 655-661 ◽  
Author(s):  
G. A. LePage

Preparations of α-2′-deoxythioguanosine (α-TGdR) completely free of β-2′-deoxythioguanosine (β-TGdR) were made and labeled with radiosulfur. A purified preparation of nucleoside phosphorylase obtained from human blood cells was found to be active on the β-anomer but completely inactive on the α-anomer. This property of the enzyme was used to characterize metabolites of α-TGdR. α-TGdR and β-TGdR were both found to be converted to the corresponding mono-, di-, and tri-phosphates and incorporated into the nucleic acids of Mecca lymphosarcoma cells in vivo. α-TGdR appeared predominantly in the terminal nucleoside positions of RNA and DNA. β-TGdR appeared predominantly in the nucleotide chain. Both Mecca lymphosarcoma and Ehrlich carcinoma cells formed significant quantities of analog nucleotides at all three levels of phosphorylation, probably exceeding the levels of guanine nucleotides in the cells for an appreciable time. The findings further support a correlation reported earlier between the incorporation of 6-thioguanine into DNA and the inhibition of cell growth.


Nature ◽  
1962 ◽  
Vol 193 (4815) ◽  
pp. 591-592 ◽  
Author(s):  
SUSAN TOLNAI ◽  
RENE SCANTLAND ◽  
JOSEPH F. MORGAN

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