Journal of Stem Cell Research & Therapy

In vivo monitoring the intracellular pH variation upon Aspergillus fumigatus infection in single apoptotic human monocytes

3^rd International Conference and Exhibition on Cell & Gene Therapy

October 27-29, 2014 Embassy Suites Las Vegas, USA

Sara Mohebbi

Accepted Abstracts: J Stem Cell Res Ther

Abstract:

Aspergillus species, in the first place are ubiquitous fungi which ecologically tend to inhabit soil, water, vegetation and starchy products. Therefore, they have an important effect on the global carbon and nitrogen reproduction chain. Also Aspergillus species are well known opportunistic fungi that manipulate the immune system of human. Among the species, Aspergillus fumigatus is one of the most prevalent fungi which cause allergic forms of human disease and fatal aspergillosis. It has been previously shown that A. fumigatus has the following impacts on host cells: Once the conidia are inhaled, they would be phagocytosed by the epithelial cells of lung and localize into macrophages, developing aspergillosis and consequently as the infectious particles, they lead the cell entering into apoptotic phase. Also interestingly, the wild type melanotic conidia can interfere with the intrinsic and extrinsic apoptotic pathways in macrophages and inhibit apoptosis. Since apoptosis is a pH-dependent event, in this study the effect of melanin from A. fumigatus on the pH variation during the apoptosis is hyperspectrally monitored in the human monocyte. Hyperspectral imaging (also known as imaging spectroscopy) is a research technique which collects and processes data from multiple fluorescent dyes in quantitative means. By applying this method, driven spectrum from multicolored fluorescent sample, is being divided into more extended bands and consequently, the visible and graphable images are provided.

Biography :

Sara Mohebbi is a Research Fellow and PhD student in Leibniz Institute for Natural Product Research and Infection Biology ? Hans Kn?ll Institute (HKI), Jena, Germany. She earned her first MSc degree in Microbiology from Tehran Science and Researches Center, (Tehran, Iran) and then attended Uppsala University, (Uppsala, Sweden) and graduated from Cell and Molecular Biology Master Program. She published a part of her first master thesis as a research paper in a scientific journal. During her current research project, in 2013 she had a successful poster presentation in 5th International Conference on Environmental, Industrial and Applied Microbiology, Madrid, Spain..