Navigation Links
GW researcher discovers new regulatory autism gene
Date:7/1/2013

WASHINGTON -- A new study by Valerie Hu, Ph.D., professor of biochemistry and molecular medicine at the George Washington University (GW) School of Medicine and Health Sciences (SMHS), reports that RORA, a novel candidate gene for autism discovered by her group in a 2010 study, regulates a large number of other genes associated with autism.

"We are focusing on this gene, in part, because this gene can act as a master regulator of other genes," said Hu, whose study was published in the journal Molecular Autism.

"Called nuclear hormone receptors, they are capable of activating or suppressing other genes in the genome. The question was which specific genes are regulated by RORA."

Hu and co-author, Tewarit Sarachana, Ph.D., a former doctoral student in the molecular medicine doctoral program at SMHS, found that RORA encodes a protein that can regulate the expression of more than 2,500 other genes. Of these 2,500 genes, many are known to be involved in neuronal development and functions, and 426 of RORA's gene targets are already listed in AutismKB, a database of known autism candidate genes.

To identify genes regulated by RORA, Hu and Sarachana used chromatin immunoprecipitation (ChIP) with an anti-RORA antibody followed by whole-genome promoter array (chip) analysis. This genome-wide ChIP-on-chip analysis of target genes of RORA, as well as additional methods of validation, confirmed that RORA transcriptionally regulates the genes A2BP1, CYP19A1, HSD17B10, ITPR1, NLGN1, and NTRK2, such that when RORA levels are cut in half, all six genes also go down in their expression. The expression levels of these six genes are also reduced in RORA-deficient postmortem brain tissues from individuals with autism relative to that of age-matched unaffected controls.

"We see it as a domino effect, where RORA is a particularly shaky domino," said Hu. "If knocked over, it can also knock down a whole bunch of other genes, except that it's not just a single chain of events. There are multiple chains of events, leading to massive disruption of gene expression in autism."

A 2011 study by Hu's group revealed that RORA has the potential to be under negative and positive regulation by androgen and estrogen, respectively, suggesting that RORA may also contribute to the male bias of autism spectrum disorder.


'/>"/>

Contact: Lisa Anderson
lisama2@gwu.edu
202-994-3121
George Washington University
Source:Eurekalert

Related biology news :

1. Study by UC Santa Barbara researchers suggests that bacteria communicate by touch
2. UC Santa Barbara researchers discover genetic link between visual pathways of hydras and humans
3. Study jointly led by UCSB researcher supports theory of extraterrestrial impact
4. U of Alberta researcher steps closer to understand autoimmune diseases
5. Researchers attempt to solve problems of antibiotic resistance and bee deaths in one
6. UNH researchers find African farmers need better climate change data to improve farming practices
7. Ottawa researchers to lead world-first clinical trial of stem cell therapy for septic shock
8. Researchers uncover molecular pathway through which common yeast becomes fungal pathogen
9. Researchers print live cells with a standard inkjet printer
10. Columbia Engineering and Penn researchers increase speed of single-molecule measurements
11. Researchers reveal how a single gene mutation leads to uncontrolled obesity
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/23/2017)... 23, 2017  The general public,s help is being enlisted in what,s ... live in and on the human body –and are believed to affect ... The Microbiome Immunity Project is ... starting with the gut. The project's goal is to help advance scientific ... ...
(Date:6/23/2017)... ITHACA, N.Y. , June 23, 2017 /PRNewswire/ ... leader in dairy research, today announced a new collaboration ... reduce the chances that the global milk supply is ... dairy project, Cornell University has become the newest academic ... Supply Chain, a food safety initiative that includes IBM ...
(Date:5/16/2017)... 16, 2017   Bridge Patient Portal , ... MD EMR Systems , an electronic medical ... GE, have established a partnership to build an ... the GE Centricity™ products, including Centricity Practice Solution ... These new integrations will allow healthcare delivery ...
Breaking Biology News(10 mins):
(Date:10/11/2017)... ... 11, 2017 , ... Singh Biotechnology today announced that the ... its novel anti-STAT3 (Signal Transducer and Activator of Transcription 3) B VHH13 single ... the cell membrane and bind intracellular STAT3 and inhibit its function. Dysregulation of ...
(Date:10/10/2017)... ... October 10, 2017 , ... ... targeted antibody-drug conjugate (ADC) therapeutics, today confirmed licensing rights that give it ... Nanoparticle), a technology developed in collaboration with Children’s Hospital Los Angeles (CHLA). ...
(Date:10/10/2017)... ... 2017 , ... Dr. Bob Harman, founder and CEO of VetStem Biopharma, ... The event entitled “Stem Cells and Their Regenerative Powers,” was held on ... DVM, MPVM was joined by two human doctors: Peter B. Hanson, M.D., Chief of ...
(Date:10/10/2017)... CRUZ, Calif. , Oct. 10, 2017 ... grant from the NIH to develop RealSeq®-SC (Single Cell), ... kit for profiling small RNAs (including microRNAs) from single ... Analysis Program highlights the need to accelerate development of ... "New techniques for measuring ...
Breaking Biology Technology: