Teratoma Generation in the Testis Capsule
| Autor: | Sangyoon Han, Louise C. Laurent, Trevor R. Leonardo, Ha T. Tran, Suzanne E. Peterson, Ibon Garitaonandia, Kyle S. Nickey, Jeanne F. Loring |
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| Jazyk: | angličtina |
| Rok vydání: | 2011 |
| Předmět: |
Male
Pluripotent Stem Cells Pathology medicine.medical_specialty Cell type Issue 57 General Chemical Engineering mouse testis capsule Germ layer Embryoid body Mice SCID Biology General Biochemistry Genetics and Molecular Biology Germline Mice Testicular Neoplasms stem cells medicine Animals Induced pluripotent stem cell hPSCs General Immunology and Microbiology General Neuroscience animal model Teratoma medicine.disease Embryonic stem cell Cell biology teratoma assay Cell Transformation Neoplastic Neoplastic Stem Cells Medicine Stem cell |
| Zdroj: | Journal of Visualized Experiments : JoVE |
| ISSN: | 1940-087X |
| Popis: | Pluripotent stem cells (PSCs) have the unique characteristic that they can differentiate into cells from all three germ layers. This makes them a potentially valuable tool for the treatment of many different diseases. With the advent of induced pluripotent stem cells (iPSCs) and continuing research with human embryonic stem cells (hESCs) there is a need for assays that can demonstrate that a particular cell line is pluripotent. Germline transmission has been the gold standard for demonstrating the pluripotence of mouse embryonic stem cell (mESC) lines(1,2,3). Using this assay, researchers can show that a mESC line can make all cell types in the embryo including germ cells(4). With the generation of human ESC lines(5,6), the appropriate assay to prove pluripotence of these cells was unclear since human ESCs cannot be tested for germline transmission. As a surrogate, the teratoma assay is currently used to demonstrate the pluripotency of human pluripotent stem cells (hPSCs)(7,8,9). Though this assay has recently come under scrutiny and new technologies are being actively explored, the teratoma assay is the current gold standard(7). In this assay, the cells in question are injected into an immune compromised mouse. If the cells are pluripotent, a teratoma will eventually develop and sections of the tumor will show tissues from all 3 germ layers(10). In the teratoma assay, hPSCs can be injected into different areas of the mouse. The most common injection sites include the testis capsule, the kidney capsule, the liver; or into the leg either subcutaneously or intramuscularly(11). Here we describe a robust protocol for the generation of teratomas from hPSCs using the testis capsule as the site for tumor growth. |
| Databáze: | OpenAIRE |
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