Rabbit antisera were prepared against the two major groups of microtubule-associated proteins (MAPs) from HeLa cells, proteins of approximately 210,000 molecular weight (210k MAPs), and 125,000 mol wt (125k MAPs). These antisera were characterized by a sensitive antigen detection technique that employs immunofluorescence to localize cross-reactive material in polyacrylamide gels. Antisera prepa...

In the present study, phytochemical constituents of medicinal plants were evaluated from their ethanolic extracts, such as Andrographis paniculata, Centella asiatica, Psidium guajava and Solanum trilobatum. The extracts subjected to a qualitative screening using standard procedure. Our study has identified phytocompounds in leaf trilobatum IR GC-MS spectroscopy. An anticancer activity was perfo...

objective(s): valproic acid (vpa) has proven to be as one of the most promising useful drug with anticancer properties.in this study, we investigate the vpa effects on e-cadherin expression in hela, tc1, mkn45, and hct116 cell lines.  this study assesses the effects of vpa on human papillomavirus e7 expression in hpv positive cell lines. materials and methods: cell lines were treated by2 mmol/l...

The HeLa cell line is the oldest, most widely distributed, permanent human cell line. As a nearly ubiquitous inhabitant of laboratories using tissue culture techniques, its aggressive growth characteristics make it a problematic contaminant that can overgrow less robust cell lines. Consequently, HeLa contamination is common in both the research laboratory and cell line repository contexts, and ...

Rhinovirus-sensitive HeLa cells (HeLa "R") and human embryo lung fibroblasts (HEL) were compared for the isolation of rhinoviruses from patients with respiratory disease. In the period May 1970 to December 1974, 526 rhinoviruses were isolated from 517 patients, 32% in both cell types, 59% in HeLa "R" only, and 9% in HEL only. The annual isolations in HeLa "R" were between 1.7 and 4 times greate...

Aim: to identify biological interactions between proliferating fibroblasts and HeLa cells in vitro. Materials and Methods: Fibroblasts were isolated from both normal and tumour human tissues. Coverslip co-cultures of HeLa and fibroblasts in various ratios with medium replacement every 48 h were studied using fixed cell staining with dyes such as Giemsa and silver staining, with immunochemistry ...

BACKGROUND Cancer stem cells (CSCs) are proposed to be responsible for high recurrence rate in cervical carcinoma. Reagents that can suppress the proliferation and differentiation of CSCs would provide new opportunities to fight against tumor recurrence. Doxycycline has been reported as a potential anti-cancer compound. However, few studies investigated its inhibitory effect against cervical ca...

Neisseria gonorrhoeae (GC) is a human pathogen that adheres to and invades genital surfaces. Although pili are required for the initial adherence, the interaction of GC with epithelial cells is also promoted by a family of outer membrane proteins, the opacity (Opa) proteins such as OpaA protein from strain MS11. Studies have demonstrated that the interaction of the OpaA GC with epithelial cells...

Trichostatin A (TSA) as a HDAC inhibitor can regulate many biological properties including apoptosis and cell proliferation in various cancer cells. Here, we evaluated the effect of TSA on the growth and death of HeLa cervical cancer cells in relation to reactive oxygen species (ROS) and glutathione (GSH) levels. Dose- and time-dependent growth in...

Aspirin and other nonsteroidal anti-inflammatory drugs show efficacy in the prevention of cancers. It is known that they can inhibit cyclooxygenases, and some studies have shown that they can induce apoptosis. Our objective in this study was to investigate the mechanism by which aspirin exerts its apoptosis effects in human cervical cancer HeLa cells. The effect of aspirin on the gene expressio...