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Transcription profiling of mouse model or ERM deficiency - analysis of germ stem cell loss


ABSTRACT: ERM knockout mice were produced. Testis develop a Sertoli cell only; syndrome, which appears complete by 10 weeks of age in male ERM knockout mice. Three sets of Affymetrix comparisons were made. #1 and #2, Wt or ERM knockout testis from 4 week old males, totaly RNA. This time preceeds any significant histologic difference between the wt or; knockout. The results was the finding that only a very specific set or; markers for spermatogonial STEM CELLs were found to be greatly reduced in the ERM knockout. #3 and #4. The sertoli cell line TM4 was transduced with a retroviral; ERM. The wild type TM4 cell line was compared to this TM$-ERM cell line,; with the finding that only a few genes were increased in the TM4-ERM line. #5, #6 and #7. Primary Sertoli cells were purified from 4 week old wild; type or ERM knockout or from 10 week old ERM knockout mice and compared.

ORGANISM(S): Mus musculus

SUBMITTER: Kenneth Martin Murphy 

PROVIDER: E-GEOD-2205 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Publications


Division of spermatogonial stem cells produces daughter cells that either maintain their stem cell identity or undergo differentiation to form mature sperm. The Sertoli cell, the only somatic cell within seminiferous tubules, provides the stem cell niche through physical support and expression of surface proteins and soluble factors. Here we show that the Ets related molecule (ERM) is expressed exclusively within Sertoli cells in the testis and is required for spermatogonial stem cell self-renew  ...[more]

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