EXPRESSION OF THE INTERMEDIATE AFFINITY INTERLEUKIN-2 RECEPTOR BY A HUMAN SOLID TUMOR-CELL LINE - EVIDENCE FOR FUNCTIONAL-ACTIVITY

Author(s):  
SD HEYS ◽  
NM KERNOHAN ◽  
JB MURRAY ◽  
F WALKER ◽  
O EREMIN
2000 ◽  
Vol 47 (1) ◽  
pp. 165-171 ◽  
Author(s):  
P Grie ◽  
M Koronkiewicz ◽  
J S Skierski

(E)-2'-deoxy-2'-(fluoromethylene)-cytidine (FMdC), a deoxycytidine analog displaying a very high toxicity toward a variety of solid tumor cell lines and xenografts, is activated intracellularly by deoxycytidine kinase (dCK). We have compared cytotoxicity of FMdC towards a human promyeolocytic leukemia line HL-60 and a human colorectal carcinoma line COLO-205. Despite dCK activity being by far the highest in cells of lymphoid origin, the effects of FMdC were detectable at the lowest drug concentration only in a solid tumor cell line, and at higher concentrations they were qualitatively similar in the two tumor lines (increased cell protein content, cell cycle block and apoptosis). Apparently, low dCK activity in solid tumor cells sufficiently activates FMdC to yield cytotoxic effects, while high dCK activity in leukemia cells does not increase its cytotoxicity.


1983 ◽  
Vol 48 (2) ◽  
pp. 377-383 ◽  
Author(s):  
E Knust ◽  
W Dietrich ◽  
B Fleckenstein ◽  
W Bodemer

2019 ◽  
Vol 26 (09) ◽  
pp. 1950058
Author(s):  
SADEQ H. LAFTA ◽  
ALI ABDULRAHMAN TAHA ◽  
MUHAMMAD M. FARHAN ◽  
SHAIMA Y. ABDULFATTAH

Nanoparticles of alpha ferric oxide ([Formula: see text]-Fe2O3) were prepared by the hydrothermal method. Structural properties of [Formula: see text]-Fe2O3 were determined by XRD, SEM and AFM measurements. The particles had a good matching with standard pattern. Average particle size was about 90[Formula: see text]nm and the distribution extended from about 20[Formula: see text]nm to 120[Formula: see text]nm. Biocompatibility study of ferric oxide nanoparticles against bacteria, parasites, tumor cell line and normal cells was determined. No antibacterial activity was observed for the concentration, of ferric oxide nanoparticles in distilled water, up to 1.5[Formula: see text]mg/ml vs. E. coli and S. aureus. Moreover, MTT assay was used to determine the cytotoxicity against parasites and cells. Intermediate cytotoxicity (53.30%) of 1.5[Formula: see text]mg/ml of prepared nanoparticles was noted against L. tropica, while weak cytotoxicity of 5.20% was observed against L. donovani at the same concentration of ferric oxide nanoparticles. On the other hand, the prepared nanoparticles revealed low cytotoxicity (47.28%) against SR tumor cell line, while no cytotoxicity was shown against lymphocytes, as a model of normal cells.


Endocrine ◽  
2008 ◽  
Vol 33 (1) ◽  
pp. 62-76 ◽  
Author(s):  
Katharina H. Ruebel ◽  
Alexey A. Leontovich ◽  
Yoshinori Tanizaki ◽  
Long Jin ◽  
Gail A. Stilling ◽  
...  

Author(s):  
Hong‑Tao Chen ◽  
Jun Zhou ◽  
You‑Ling Fan ◽  
Chun‑Liang Lei ◽  
Bao‑Jin Li ◽  
...  

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