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| Status |
Public on Mar 01, 2016 |
| Title |
The acetyllysine reader BRD3R promotes human nuclear reprogramming and regulates mitosis |
| Organism |
Homo sapiens |
| Experiment type |
Expression profiling by high throughput sequencing
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| Summary |
It is well known that both recipient cells and donor nuclei demonstrate a mitotic advantage as observed in the traditional reprogramming with somatic cell nuclear transfer (SCNT). However, It is not known whether a specific mitotic factor plays a critical role in reprogramming. Here we identify an isoform of human bromodomain-containing 3 (BRD3), BRD3R (BRD3 with Reprogramming activity), as a reprogramming factor. BRD3R positively regulates mitosis during reprogramming, upregulates a large set of mitotic genes at early stages of reprogramming, and associates with mitotic chromatin. Interestingly, a set of the mitotic genes upregulated by BRD3R constitutes a pluripotent molecular signature. The two BRD3 isoforms display differential binding to acetylated histones. Our results suggest a molecular interpretation for the mitotic advantage in reprogramming, and show that mitosis may be a driving force of reprogramming.
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| Overall design |
Human BJ cells transduced with lentiviral particles of the conventional reprogramming factors (OCT3/4, SOX2 and KLF4) were used as controls. Two types of controls were used: 1) BJ transduced with OSK (OCT4, SOX2 and KFL4) viruses; 2) BJ cells transduced with OSK plus GFP viruses. Experimental treatment was BJ cells transduced with OSK plus BRD3R viruses. RNA was extracted from cells at day 3 of reprogramming because the reprogramming cells are still homogeneous and transgenes are well expressed at this time point.
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| Contributor(s) |
Khodadadi-Jamayran A, Shao Z, Crowley M, Crossman D, Hu K |
| Citation(s) |
26947130 |
| Submission date |
Mar 11, 2015 |
| Last update date |
Apr 06, 2020 |
| Contact name |
Alireza Khodadadi-Jamayran |
| Organization name |
New York University, NYU Langone Medical Center
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| Department |
Division of Advanced Research Technologies (DART)
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| Lab |
Applied Bioinformatics Laboratories (ABL)
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| Street address |
550 1st Ave, MSB 304
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| City |
New York City |
| State/province |
NY |
| ZIP/Postal code |
10016 |
| Country |
USA |
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| Platforms (1) |
| GPL16791 |
Illumina HiSeq 2500 (Homo sapiens) |
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| Samples (14)
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| Relations |
| BioProject |
PRJNA277980 |
| SRA |
SRP056087 |
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