We consider that inflammatory substances play an important role in the carcinogenesis process. In the process, cytokines and growth factor secreted by cells can actively recruit immune cells in the carcinogenesis microenvironment, further, promote carcinogenesis progression. The carcinogenesis microenvironment even subverted the immune system, moreover, enhanced the carcinogenesis through immun...

Bovine respiratory disease (BRD) is the leading cause of morbidity and mortality in feedlot cattle. herpesvirus-1 (BHV-1) one main culprits BRD; however, research on BHV-1 hampered by lack suitable models for infection drug testing. In this study, we established a novel bovine tracheal organoid culture grown basement membrane extract type 2 (BME2) matrix compared it with air–liquid interface (A...

The stem cell microenvironment is influenced by several factors including cell-media, cell-cell, and cell-matrix interactions. Although conventional cell-culture techniques have been successful, they offer poor control of the cellular microenvironment. To enhance traditional techniques, we have designed a microscale system to perform parallel cell culture on a chip while controlling the microen...

Chemoresistance is a leading cause of morbidity and mortality in cancer and it continues to be a challenge in cancer treatment. Chemoresistance is influenced by genetic and epigenetic alterations which affect drug uptake, metabolism and export of drugs at the cellular levels. While most research has focused on tumor cell autonomous mechanisms of chemoresistance, the tumor microenvironment has e...

We investigated the possibility of mimicking the bone marrow (BM) microenvironment using a microfluidic device. We succeeded in observing the differentiation into osteoclasts (OCs) and the migration of leukemic cells into the mimicked BM microenvironment. We confirmed that the BM microenvironment was mimicked in vitro successfully. These findings suggest that this attractive device can contribu...

air pads are applicable in ultra precision machines very much. two main components of these machines, spindle and table, use the advantages of such systems. the performance and efficiency of air pads have big influence on the whole machine quality. parameters affecting pressure distribution of air tables may be considered as, 1) air compressing method, 2) air nozzle diameter, shape, and size, 3...

background and objective: bioaerosols are particles of microbes, viruses and derivatives; they exist in a wide variety of shapes and sizes and can be measured with different air samplers. the purpose of this study is the determination of bacterial aerosol in the air of hospitals and the determination of contaminated areas for disinfection proceedings by hospital health care teams, by selecting ...

Cancer cells undergo unlimited progression and survival owing to activation of oncogenes. However, support of the tumor microenvironment is essential to the formation of clinically relevant tumors. Recent evidence indicates that the tumor microenvironment is a critical regulator of immune escape, progression, and distant metastasis of cancer. Moreover, the tumor microenvironment is known to be ...

Walking School Buses (WSBs) provide a safe alternative to being driven to school. Children benefit from the contribution the exercise provides towards their daily exercise target, it gives children practical experience with respect to road safety and it helps to relieve traffic congestion around the entrance to their school. Walking routes are designed largely based in road safety consideration...