In this paper we consider a non-autonomous multi-strain SIS epidemic model with periodic coefficients. Reproduction numbers and invasion reproduction numbers are derived which agree well with their counterparts usually derived from autonomous epidemic models. With conditions on these reproduction numbers typical results are obtained, such as the local and global stability of the disease-free eq...

Cell migration is a complex behavior involving many energy-expensive biochemical events that iteratively alter cell shape and location. Mitochondria, the principal producers of cellular ATP, are dynamic organelles that fuse, divide, and relocate to respond to cellular metabolic demands. Using ovarian cancer cells as a model, we show that mitochondria actively infiltrate leading edge lamellipodi...

An increasing number of studies suggest inflammation stimulates tumour invasion. In melanoma, despite recent advances in targeted therapy and immunomodulatory therapies, this cancer remains difficult to treat. Our previous studies show melanoma cells interact with skin cells in their invasion into tissue engineered skin and suggest inflammation stimulates invasion. The aim of this study was to ...

Overexpression of several aquaporins (AQPS) has been reported in different types of human cancer but roles in human carcinogenesis have yet to be clearly defined. Here, we up-regulated expression of the AQP8 gene in SiHa human cervical cancer cells with a lentivirus transfection system and investigated its effects as a potential therapeutic target for cervical cancer. Results showed AQP8 overex...

objective(s): juglone is isolated from many species of the juglandaceae family and used as an anti-viral, anti-bacterial, and anti-tumor therapeutic. here, we evaluated juglone-induced antitumor effect in ovarian cancer skov3 cells. materials and methods: mtt assay was performed to examine juglone anti-proliferative effect. cell cycle and apoptosis were studied using flow cytometry in juglone-tr...

background & objectives: tumor diathesis (td) is defined as granular proteinaceous precipitates on slide surface of cytologic smears. it is found in the background of smears of invasive carcinoma but not in all cases. the aim of present study was to determine the prevalence of td in cervicovaginal smears from patients with uterine cervix carcinoma. methods: cytological smears and histologi...

We used the RIP1-Tag2 (RT2) mouse model of islet cell carcinogenesis to profile the transcriptome of pancreatic neuroendocrine tumors (PNET) that were either non-invasive or highly invasive, seeking to identify pro- and anti-invasive molecules. Expression of multiple components of desmosomes, structures that help maintain cellular adhesion, was significantly reduced in invasive carcinomas. Gene...

Bacterial infections and sepsis remain major causes of morbidity and mortality in intensive care units. The normal host response to infection is a complex process that serves to localise and control the invasion of microbes and to repair injured tissue. Local inflammatory processes are regulated through the production of cytokines by macrophages. In some cases, mediator release exceeds the...

Conclusion Cervical cancer remains a major threat to women’s health worldwide. MR is the imaging modality of choice to depict the primary tumour and assess local extent. Comparing the radiological findings with the postoperative histological reports, high resolution MR with a dedicated protocol demonstrated to be useful for primary tumour detection and for the assessment of myometrium invasion,...