Unknown,Transcriptomics,Genomics,Proteomics

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LRH1 silencing inhibits human colon cancer growth.


ABSTRACT: This study was undertaken to better determine the function of LRH-1 (NR5A2) in the colorectal cancers (CRC) through inducible shRNA-mediated knockdown within well-established CRC cell line Caco-2 Our work is the first to demonstrate that silencing of LRH-1 in established human CRC cell lines impairs proliferation though G0/G1 phase prolongation, and alteration in diverse cellular pathways consistent with the critical role of LRH-1 in CRC. Two separate DNA sequences targeting the LRH-1 LBD- were cloned into parent vector pTripZ RHS4696 (Open Biosystems), with incorporation of silencing vector confirmed by fluorescent assay for marker TurboRFP. Non-silencing control cell lines were produced similarly using manufacturerM-bM-^@M-^Ys vector (Open Biosystems, RHS4743). Cells were plated at a concentration of 100,000 cells per ml in 12 well plates and allowed to attach overnight. shRNA expression was induced by the addition of 5 M-NM-

ORGANISM(S): Homo sapiens

SUBMITTER: Paul Webb 

PROVIDER: E-GEOD-64695 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Publications

Silencing LRH-1 in colon cancer cell lines impairs proliferation and alters gene expression programs.

Bayrer James R JR   Mukkamala Sridevi S   Sablin Elena P EP   Webb Paul P   Fletterick Robert J RJ  

Proceedings of the National Academy of Sciences of the United States of America 20150209 8


Colorectal cancers (CRCs) account for nearly 10% of all cancer deaths in industrialized countries. Recent evidence points to a central role for the nuclear receptor liver receptor homolog-1 (LRH-1) in intestinal tumorigenesis. Interaction of LRH-1 with the Wnt/β-catenin pathway, highly active in a critical subpopulation of CRC cells, underscores the importance of elucidating LRH-1's role in this disease. Reduction of LRH-1 diminishes tumor burden in murine models of CRC; however, it is not known  ...[more]

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