Surface Morphological Changes Of Hela Cells Exposed To Tamoxifen And Taxol

1999 ◽  
Vol 5 (S2) ◽  
pp. 1270-1271
Author(s):  
S.K. Majumdar ◽  
J. Valdellon
Keyword(s):  
Morphological Changes ◽  
Cell Types ◽  
Chemotherapeutic Agents ◽  
Taxus Brevifolia ◽  
Antimitotic Agent ◽  
The Pacific ◽  
Cervical Cancer Cells ◽  
Mammary Gland Cells ◽  
Human Cervical Cancer Cells

Tamoxifen and taxol are two promising chemotherapeutic agents currently used in cancer treatment, but each has its own unique mechanism of action. Tamoxifen, known to inhibit the activity of estrogen on malignant mammary gland cells, was recently approved by the FDA for the treatment of breast cancer. Taxol, extracted from the Pacific Yew tree, Taxus brevifolia, is an antimitotic agent that binds specifically to the β-subunit, promoting the assembly and stabilization of tubulin polymers. Studies have shown that tamoxifen and taxol induce cytostatic and cytotoxic effects leading to the death of several cancer cell types in vitro.In this research, the surface ultrastructural effects of both tamoxifen and taxol were investigated in human cervical cancer cells (HeLa).Exponentially growing cells were treated with 5, 10, 15, and 20 μg/ml of tamoxifen and 1 μg/ml of taxol (LC50) for 24, 48, 72, and 96 hours. For scanning electron microscopy (SEM), the cells were grown on coverslips, fixed in 2% glutaraldehyde followed by 1% osmium tetroxide.

Growth Inhibition of Human Cervical Cancer Cells with the Recombinant Adenovirusp53 in Vitro

1996 ◽  
Vol 60 (3) ◽  
pp. 373-379 ◽  
Author(s):  
Katsuyuki Hamada ◽  
Wei-Wei Zhang ◽  
Ramon Alemany ◽  
Judith Wolf ◽  
Jack A. Roth ◽  
...  
Keyword(s):  
Cervical Cancer ◽  
Growth Inhibition ◽  
Cancer Cells ◽  
Cervical Cancer Cells ◽  
Human Cervical Cancer Cells ◽  
Human Cervical Cancer

scholarly journals The Human c-Fes Tyrosine Kinase Binds Tubulin and Microtubules through Separate Domains and Promotes Microtubule Assembly

2004 ◽  
Vol 24 (21) ◽  
pp. 9351-9358 ◽  
Author(s):  
Charles E. Laurent ◽  
Frank J. Delfino ◽  
Haiyun Y. Cheng ◽  
Thomas E. Smithgall
Keyword(s):  
Tyrosine Kinase ◽  
Protein Tyrosine Kinase ◽  
Morphological Changes ◽  
Neuronal Cells ◽  
Coiled Coil ◽  
Cell Types ◽  
Sh2 Domain ◽  
Microtubule Assembly

ABSTRACT The c-Fes protein-tyrosine kinase (Fes) has been implicated in the differentiation of vascular endothelial, myeloid hematopoietic, and neuronal cells, promoting substantial morphological changes in these cell types. The mechanism by which Fes promotes morphological aspects of cellular differentiation is unknown. Using COS-7 cells as a model system, we observed that Fes strongly colocalizes with microtubules in vivo when activated via coiled-coil mutation or by coexpression with an active Src family kinase. In contrast, wild-type Fes showed a diffuse cytoplasmic localization in this system, which correlated with undetectable kinase activity. Coimmunoprecipitation and immunofluorescence microscopy showed that the N-terminal Fes/CIP4 homology (FCH) domain is involved in Fes interaction with soluble unpolymerized tubulin. However, the FCH domain was not required for colocalization with polymerized microtubules in vivo. In contrast, a functional SH2 domain was essential for microtubule localization of Fes, consistent with the strong tyrosine phosphorylation of purified tubulin by Fes in vitro. Using a microtubule nucleation assay, we observed that purified c-Fes also catalyzed extensive tubulin polymerization in vitro. Taken together, these results identify c-Fes as a regulator of the tubulin cytoskeleton that may contribute to Fes-induced morphological changes in myeloid hematopoietic and neuronal cells.

Proliferation Inhibition and Apoptosis Induction of Juglone on Human Cervical Cancer HeLa Cells

2014 ◽  
Vol 912-914 ◽  
pp. 1961-1964 ◽  
Author(s):  
Wei Zhang ◽  
Wen He Zhu ◽  
Yan Li ◽  
Jun Luo ◽  
Shi Jie Lv
Keyword(s):  
Cervical Cancer ◽  
Hela Cells ◽  
Control Group ◽  
Dependent Manner ◽  
Inverted Microscope ◽  
Cervical Cancer Cells ◽  
Human Cervical Cancer Cells ◽  
Dose Dependent ◽  
Human Cervical Cancer

Abstract: To investigate whether juglone could inhibits the proliferation on human cervical cancer cells (HeLa) in vitro. Cells were divided into control group, different concentration (10μM, 20μM, 50μM, 100μM and200μM) juglone groups for different durations. The viability of HeLa cells was detected by methyl thiazolyl tetrazolium (MTT) assay. The morphology changes of HeLa cells were observed by inverted microscope .The results showed that the viability of HeLa cells was decreased and the cell morphology was changed in a dose-dependent manner after treatment different concentration juglone for 24h when compared with control group. The results suggest that Juglone may be effective for the treatment of HeLa cells.

Triphenylstannyl((arylimino)methyl)benzoates with selective potency that induce G1 and G2/M cell cycle arrest and trigger apoptosis via ROS in human cervical cancer cells

2018 ◽  
Vol 47 (6) ◽  
pp. 1993-2008 ◽  
Author(s):  
Tushar S. Basu Baul ◽  
Imliwati Longkumer ◽  
Andrew Duthie ◽  
Priya Singh ◽  
Biplob Koch ◽  
...  
Keyword(s):  
Cell Cycle ◽  
Cervical Cancer ◽  
Cancer Cells ◽  
M Cell ◽  
Cycle Arrest ◽  
Cervical Cancer Cells ◽  
Human Cervical Cancer Cells ◽  
Excellent Selectivity ◽  
Human Cervical Cancer

Newly synthesized triphenylstannyl 4-((arylimino)methyl)benzoates show enhanced cytotoxicity and excellent selectivity in vitro towards human cervical cancer cells.

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