Boston researchers develop novel approach to generate intestinal organoids in vitro

Boston researchers develop novel approach to generate intestinal organoids in vitro

Boston researchers have developed a new way to generate groups of intestinal cells that can be used, among others, to make disease models in the lab to test treatments for diseases affecting the gastrointestinal system. Using human induced pluripotent stem cells , this novel approach combined a variety of techniques that enabled the development of three-dimensional groups of intestinal cells called organoids in vitro, which can expand disease treatment testing in the lab using human cells. Published online in Nature Communications , this process provides a novel platform to improve drug screenings and uncover novel therapies to treat a variety of diseases impacting the intestine, such as inflammatory bowel disease, colon cancer and Cystic Fibrosis. Researchers at the Center for Regenerative Medicine (CReM) of Boston University and Boston Medical Center used donated human induced pluripotent stem cells (hiPSCs), which are created by reprogramming adult cells into a primitive state. For this study, these cells were pushed to differentiate into intestinal cells using specific growth factors in order to create organoids in a gel. This new protocol allowed the cells to develop without mesenchyme, which typically in other protocols, provides support for the intestinal epithelial cells to grow. By taking out the mesenchyme, the researchers could study exclusively epithelial cells, which make up the intestinal tract. In addition, using CRISPR technology, the researchers were able to modify and create a novel iPSC stem cell line that glowed green when differentiated into intestinal cells. This allowed the researchers to follow the process of how intestinal cells differentiate in vitro. Generating organoids in our lab allows us to create more accurate disease models, which are used to test treatments and therapies targeted to a specific genetic defect or tissue - and it's all possible without harming the patient. This approach allows us to determine what treatments could be most effective, and which are ineffective, against a disease." Gustavo Mostoslavsky, MD, PhD, co-director of CReM and faculty in the gastroenterology section at Boston Medical Center Related Stories



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