The interactions of group B streptococci (GBS) with HeLa cells (an epithelial cell line) and MRC-5 cells (a fibroblastic cell line) were explored. A host-cell invasion assay using GBS strains from all serotypes revealed that GBS invaded HeLa cells to a greater extent than MRC-5 cells. One strain, a serotype V (NCS13), was highly invasive against HeLa cells. All strains were poorly invasive agai...

Intermediate filaments (IF) isolated from human epithelial cells (HeLa) can be disassembled in 8 M urea and reassembled in phosphate-buffered solutions containing greater than 0.1 mg/ml IF protein. Eight proteins were associated with HeLa IF after several disassembly-reassembly cycles as determined by sodium dodecyl sulfate gel electrophoresis (SDS PAGE). A rabbit antiserum directed against HeL...

Cytotoxic activity of methanolic extract Artocarpus heterophyllus against A549, Hela and MCF-7 cell linesRajesh M.Patel, Sahil K. Patel

We describe the synthesis of monodispersed, silica encapsulated conjugated polymer nanoparticles, their colour tunability and use in imaging HeLa cells.

Scheme of GO detection and mapping inside single HeLa cells by using label-free Raman spectroscopy with MCR analysis.

KW-2149 is a new water-soluble analogue of mitomycin C which shows a broad spectrum antitumor activity in experimental tumor models including mitomycin C-resistant tumors and is less hematotoxic than mitomycin C. We have found that KW-2149 increases protein-DNA complexes in HeLa S3 cells using the potassium/sodium dodecyl sulfate precipitation method which recovers largely DNA bound covalently ...

conclusions these results suggest that toxins induce inflammatory responses, particularly through expression of chemokine. recombinant stx and native toxin induced apoptosis by balancing between different pro- and anti-apoptotic bcl-2 family-factors in epithelial cells. in this study, for the first time, recombinant and native stx induction of apoptotic factors and stimulation of immune respons...

Intact drugs with spirocyclopropylhexadienone moieties can be regenerated from the covalent DNA adducts induced by antitumor antibiotics duocarmycin (DUM) A, SA and some DUMA analogues in neutral aqueous solution. We detected the reversible nature of DUMs by determination of the antimicrobial activity and cytotoxicity of DUM-DNA adducts. All of the adducts selectively inhibited the growth of a ...

Preliminary examination for the structure-activity relationship of quinone monooxime derivatives on cytotoxicity against HeLa S3 cell and further trials using eight different cell lines suggested that 2-aryl-6,7-methylenedioxy-1,4-naphthoquinone-1-oxime methyl ethers, carrying 2-methoxy-4,5-methylenedioxyphenyl, 7-methoxy-2-methylbenzofuran-4-yl, and 2-methoxycarbonyl-3,4-dimethoxyphenyl as the...