Enter a sentence, or cut and paste a paragraph

Refine

Refine

Refine to these subject areas:

  • Select All | Select None

Advanced Filters »

Refine

  • Advanced Filters:

  • to

  • Specific Data Sources:

    All Edit

    Select All  |  Select None

Reset filters

Journals The FASEB Journal June 2009

Bookmark

Knockdown of TRPC3 with siRNA coupled to carbon nanotubes results in decreased insulin-mediated glucose uptake in adult skeletal muscle cells

To view this document, you will need to have Adobe Flash Player 10 or above installed.
Please click here to install.

The involvement of Ca 2+ in the insulin-mediated signaling cascade, resulting in glucose uptake in skeletal muscle, is uncertain. Here, we test the hypothesis that Ca 2+ influx through canonical transient receptor potential 3 (TRPC3) channels modulates insulin-mediated glucose uptake in adult skeletal muscle. Experiments were performed on adult skeletal muscle cells of wild-type (WT) and obese, insulin-resistant ob / ob mice. Application of the diacylglycerol analog 1-oleyl-2-acetyl-sn-glycerol (OAG) induced a nonselective cation current, which was inhibited by the addition of anti-TRPC3 antibody in the patch pipette and smaller in ob / ob than in WT cells. Knockdown of TRPC3, using a novel technique based on small interfering RNA (siRNA) coupled to functionalized carbon nanotubes, resulted in pronounced ( 70%) decreases in OAG-induced Ca 2+ influx and insulin-mediated glucose uptake. TRPC3 and the insulin-sensitive glucose transporter 4 (GLUT4) coimmunoprecipitated, and immunofluorescence staining showed that they were colocalized in the proximity of the transverse tubular system, which is the predominant site of insulin-mediated glucose transport in skeletal muscle. In conclusion, our results indicate that TRPC3 interacts functionally and physically with GLUT4, and Ca 2+ influx through TRPC3 modulates insulin-mediated glucose uptake. Thus, TRPC3 is a potential target for treatment of insulin-resistant conditions.—Lanner, J. T., Bruton, J. D., Assefaw-Redda, Y., Andronache, Z., Zhang, S.-J., Severa, D., Zhang, Z.-B., Melzer, W., Zhang, S.-L., Katz, A., Westerblad, H. Knockdown of TRPC3 with siRNA coupled to carbon nanotubes results in decreased insulin-mediated glucose uptake in adult skeletal muscle cells.

To view this document, you will need to have Adobe Flash Player 10 or above installed.
Please click here to install.

This is a preview. The total pages displayed will be limited.

Rent for $0.99 FREE

Login

It seems like you have an account, please login to rent this article

Forgot your password?

Don't have an account yet? Sign up now!

To view the full-text of this article, sign up for a free DeepDyve account below.

A free Basic account also comes with
3 free rentals to help get you started.

It seems like you have an account, please login to rent this article

Just 30 seconds to go! Please check your inbox for a confirmation email to activate your account, then start using your 3 FREE rentals.

Learn more Existing user? Login here

Article Details
More Info

More Like This Article

View All dataSource[]=aspet&dataSource[]=aacc&dataSource[]=aacr&dataSource[]=aip&dataSource[]=ajnr&dataSource[]=appi_book&dataSource[]=appi_journal&dataSource[]=asip&dataSource[]=asm&dataSource[]=asn&dataSource[]=aspb&dataSource[]=annual_reviews&dataSource[]=arxiv&dataSource[]=acm&dataSource[]=clinical_trials&dataSource[]=dailymed&dataSource[]=degruyter&dataSource[]=elsevier&dataSource[]=emerald&dataSource[]=emea&dataSource[]=epo&dataSource[]=faseb&dataSource[]=gsa&dataSource[]=health_affairs&dataSource[]=hindawi&dataSource[]=imedpub&dataSource[]=iucr&dataSource[]=iospress&dataSource[]=jbjs&dataSource[]=mesharpe&dataSource[]=mary_ann_liebert&dataSource[]=medline&dataSource[]=mit_press&dataSource[]=oxford&dataSource[]=pnas&dataSource[]=psyc_articles&dataSource[]=psyc_books&dataSource[]=psyc_critiques&dataSource[]=plos_journal&dataSource[]=pubmed_central&dataSource[]=rsna&dataSource[]=rockefeller&dataSource[]=sage&dataSource[]=spie&dataSource[]=springer&dataSource[]=taylor_francis&dataSource[]=aps&dataSource[]=the_scientist&dataSource[]=uc_press&dataSource[]=uspto_abstract&dataSource[]=pct

Browse: Subject Areas | Journals | Publishers

Bookmark an Article

To bookmark an article, please log in first, or sign up for a DeepDyve account if you don't already have one.

OK

Subscribe to Journal Email Alerts

To subscribe to email alerts, please log in first, or sign up for a DeepDyve account if you don't already have one.

OK