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Brazilian researchers find human menstrual blood-derived cells 'feed' embryonic stem cells
Date:5/28/2014

Tampa, Fla. (May 28, 2014) To be suitable for medical transplantation, one idea is that human embryonic stem cells (hESCs) need to remain "undifferentiated" i.e. they are not changing into other cell types. In determining the best way to culture hESCs so that they remain undifferentiated and also grow, proliferate and survive, researchers have used blood cell "feeder-layer" cultures using animal-derived feeder cells, often from mice (mouse embryonic fibroblasts [MEFs]). This approach has, however, been associated with a variety of contamination problems, including pathogen and viral transmission.

To avoid contamination problems, a Brazilian research team has investigated the use of human menstrual blood-derived mesenchymal cells (MBMCs) as feeder layers and found that "MBMCs can replace animal-derived feeder systems in human embryonic stem cell culture systems and support their growth in an undifferentiated stage."

The study will be published in a future issue of Cell Medicine, but is currently freely available on-line as an unedited early e-pub at: http://www.ingentaconnect.com/content/cog/cm/pre-prints/content-CM1019silvadosSantos.

"Human embryonic stem cells present a continuous proliferation in an undifferentiated state, resulting in an unlimited amount of cells with the potential to differentiate toward any type of cell in the human body," said study corresponding author Dr. Regina Coeli dos Santos Goldenberg of the Instituto de Biofisica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro. "These characteristics make hESCs good candidates for cell based therapies."

Feeder-layers for hESCs comprised of MEFs have been efficiently used for decades but, because of the clinical drawbacks, the authors subsequently experimented with human menstrual blood cells as a potential replacement for anim
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Contact: Robert Miranda
cogcomm@aol.com
Cell Transplantation Center of Excellence for Aging and Brain Repair
Source:Eurekalert

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