Jump to content
Strawberry Orange Banana Lime Leaf Slate Sky Blueberry Grape Watermelon Chocolate Marble
Strawberry Orange Banana Lime Leaf Slate Sky Blueberry Grape Watermelon Chocolate Marble

Search the Community

Showing results for tags 'TR4'.



More search options

  • Search By Tags

    Type tags separated by commas.
  • Search By Author

Content Type


Forums

  • Welcome!
    • Introduce Yourself
    • Guest Questions
    • News Items and Research
    • Announcements
    • Questions about how these boards work?
  • Get Active!
    • Meetings, events and information
    • Fundraising Ideas
    • Cushing's Awareness Day, April 8
    • Spread the Word
    • Marathons
    • Cushing's Clothes Closet
    • Cushing's Library
    • Cushing's Store
  • Cushing's
    • Resources
    • Types of Cushing's
    • Symptoms
    • Tests
    • Treatments
  • Miscellaneous

Blogs

  • MaryO'Blog
  • Christy Smith's Blog
  • rooon55's Blog
  • LLMart's Blog
  • regina from florida's Blog
  • terri's Blog
  • Canasa's Blog
  • Tberry's Blog
  • LisaMK's Blog
  • diane177432's Blog
  • Jen1978's Blog
  • GreenGal's Blog
  • Yada Yada Yada
  • Jinxie's Blog
  • SherryC's Blog
  • stjfs' Blog
  • kalimae7371's Blog
  • Kristy's Blog
  • kathieb1's Blog
  • Yavanna's Blog
  • Johnni's Blog
  • AutumnOMA's Blog
  • Will Power
  • dropsofjupiter's Blog
  • Lorrie's Blog
  • DebMV's Blog
  • FarWind's Blog
  • sallyt's Blog
  • dseefeldt's Blog
  • ladylena's Blog
  • steffie's Blog
  • Lori L's Blog
  • mysticalsusan1's Blog
  • cathy442's Blog
  • Kathy711's Blog
  • Shannonsmom's Blog
  • jack's Blog
  • Kandy66's Blog
  • mars72's Blog
  • singlesweetness33's Blog
  • michelletm's Blog
  • JC_Adair's Blog
  • Lisa-A's Blog
  • Jen3's Blog
  • tammi's Blog
  • Ramblin' Rose (Maggie's)
  • monicaroni77's Blog
  • monicaroni's Blog
  • Saz's Blog
  • alison
  • Thankful for the Journey
  • Judy from Pgh's Blog
  • Addiegirl's Blog
  • candlelite2000's Blog
  • Courtney likes to talk......
  • Tanya's Blog
  • smoketooash's Blog
  • meyerfamily8's Blog
  • Sheila1366's Blog
  • A Guide to Blogging...
  • Karen's Blog
  • barbj222222's Blog
  • Amdy's Blog
  • Jesh's Blog
  • pumpkin's Blog
  • Jazlady's Blog
  • Cristalrose's Blog
  • kikicee's Blog
  • bordergirl's Blog
  • Shelby's Blog
  • terry.t's Blog
  • CanadianGuy's Blog
  • Mar's Cushie Couch
  • leanne's Blog
  • honeybee30's Blog
  • cat lady's Blog
  • Denarea's Blog
  • Caroline's Blog
  • NatalieC's Blog
  • Ahnjhnsn's Blog
  • A journey around my brain!
  • wisconsin's Blog
  • sonda's Blog
  • Siobhan2007's Blog
  • mariahjo's Blog
  • garcia9's Blog
  • Jessie's Blog
  • Elise T.'s Blog
  • glandular-mass' Blog
  • Rachel Bridgewater's Blog
  • judycolby's Blog
  • CathyM's Blog
  • MelissaTX's Blog
  • nessie21's Blog
  • crzycarin's Blog
  • Drenfro's Blog
  • CathyMc's Blog
  • joanna27's Blog
  • Just my thoughts!
  • copacabana's Blog
  • msmith3033's Blog
  • EyeRishGrl's Blog
  • SaintPaul's Blog
  • joyce's Blog
  • Tara Lou's Blog
  • penybobeny's Blog
  • From Where I Sit
  • Questions..
  • jennsarad's Blog
  • looking4answers2's Blog
  • julie's blog
  • cushiemom's Blog
  • greydragon's Blog
  • AmandaL's Blog
  • KWDesigns: My Cushings Journey
  • cushieleigh's Blog
  • chelser245's Blog
  • melissa1375's Blog
  • MissClaudie's Blog
  • missclaudie92's Blog
  • EEYORETJBD's Blog
  • Courtney's Blog
  • Dawn's Blog
  • Lindsay's Blog
  • rosa's Blog
  • Marva's Blog
  • kimmy's Blog
  • Cheryl's Blog
  • MissingMe's Blog
  • FerolV's Blog
  • Audrey's (phil1088) Blog
  • sugarbakerqueen's Blog
  • KathyBair's Blog
  • Jenn's Blog
  • LisaE's Blog
  • qpdoll's Blog
  • blogs_blog_140
  • beach's Blog
  • Reillmommy is Looking for Answers...
  • natashac's Blog
  • Lisa72's Blog
  • medcats10's Blog
  • KaitlynElissa's Blog
  • shygirlxoxo's Blog
  • kerrim's Blog
  • Nicki's Blog
  • MOPPSEY's Blog
  • Betty's Blog
  • And the beat goes on...
  • Lynn's Blog
  • marionstar's Blog
  • floweroscotland's Blog
  • SleepyTimeTea's Blog
  • Shelly3's Blog
  • fatnsassy's Blog
  • gaga's Blog
  • Jewels' Blog
  • SusieQ's Blog
  • kayc6751's Blog
  • moonlight's Blog
  • Sick of Being Sick
  • Peggy's Blog
  • kouta5m's Blog
  • TerryC's Blog
  • snowii's Blog
  • azZ9's Blog
  • MaMaT333's Blog
  • missaf's Blog
  • libertybell's Blog
  • LyssaFace's Blog
  • suzypar2002's Blog
  • Mutley's Blog
  • superc's Blog
  • lisajo42's Blog
  • alaustin's Blog
  • Tina1962's Blog
  • Ill never complain a single word about anything.. If I get rid of Cushings disease.
  • puddingtoast's Blog
  • AmberC's Blog
  • annacox
  • justwaiting's Blog
  • RachaelB's Blog
  • MelanieW's Blog
  • My Blog
  • FLHeather's Blog
  • HollieK's Blog
  • Bonny777's Blog
  • KatieO's Blog
  • LilDickens' Mini World
  • MelissaG's Blog
  • KelseyMichelle's Blog
  • Synergy's Blog
  • Carolyn1435's Blog
  • Disease is ugly! Do I have to be?
  • A journey of a thousand miles begins with a single wobble
  • MichelleK's Blog
  • lenalee's Blog
  • DebGal's Blog
  • Needed Answers
  • Dannetts Blog
  • Marisa's Blog
  • Is this cushings?
  • alicia26's Blog
  • happymish's Blog
  • mileymo's Blog
  • It's a Cushie Life!
  • The Weary Zebra
  • mthrgonenuts' Blog
  • LoriW's Blog
  • WendyG's Blog
  • khmood's Blog
  • Finding Answers and Pissing Everyone Off Along the Way
  • elainewwjd's Blog
  • brie's Blog
  • dturner242's Blog
  • dturner242's Blog
  • dturner242's Blog
  • Stop the Violins
  • FerolV's Internal Blog
  • beelzebubble's Blog
  • RingetteLUVR
  • Eaglemtnlake's Blog
  • mck25's Blog
  • vicki11's Blog
  • vicki11's Blog
  • ChrissyL's Blog
  • tpatterson757's Blog
  • Falling2Grace's Blog
  • meeks089's Blog
  • JustCurious' Blog
  • Squeak's Blog
  • Kill Bill
  • So It Begins ! Cushings / Pituitary Microadenoma
  • Crystal34's Blog
  • Janice Barrett

Categories

  • Helpful Articles
    • Links
    • Research and News
    • Useful Information
  • Pages
  • Miscellaneous
    • Databases
    • Templates
    • Media

Find results in...

Find results that contain...


Date Created

  • Start

    End


Last Updated

  • Start

    End


Filter by number of...

Joined

  • Start

    End


Group


AIM


MSN


Website URL


ICQ


Yahoo


Jabber


Skype


Location


Interests

Found 1 result

  1. LA JOLLA, CA—Scientists at the Salk Institute for Biological Studies have identified a protein that drives the formation of pituitary tumors in Cushing’s disease, a development that may give clinicians a therapeutic target to treat this potentially life-threatening disorder. The protein, called TR4 (testicular orphan nuclear receptor 4), is one of the human body’s 48 nuclear receptors, a class of proteins found in cells that are responsible for sensing hormones and, in response, regulating the expression of specific genes. Using a genome scan, the Salk team discovered that TR4 regulates a gene that produces adrenocorticotropic hormone (ACTH), which is overproduced by pituitary tumors in Cushing’s disease (CD). The findings were published in the May 6 early online edition of Proceedings of the National Academy of Sciences. “We were surprised by the scan, as TR4 and ACTH were not known to be functionally linked,” says senior author Ronald M. Evans, a professor in Salk’s Gene Expression Laboratory and a lead researcher in the Institute’s Helmsley Center for Genomic Medicine. “TR4 is driving the growth and overexpression of ACTH. Targeting this pathway could therapeutically benefit treatment of CD.” In their study, Evans and his colleagues discovered that forced overexpression of TR4 in both human and mouse cells increased production of ACTH, cellular proliferation and tumor invasion rates. All of these events were reversed when TR4 expression was reduced. First described more than 80 years ago, Cushing’s disease is a rare disorder that is caused by pituitary tumors or excess growth of the pituitary gland located at the base of the brain. People with CD have too much ACTH, which stimulates the production and release of cortisol, a hormone that is normally produced during stressful situations. While these pituitary tumors are almost always benign, they result in excess ACTH and cortisol secretion, which can result in various disabling symptoms, including diabetes, hypertension, osteoporosis, obesity and psychological disturbances. Surgical removal of the tumors is the first-line therapy, with remission rates of approximately 80 percent; however, the disease recurs in up to 25 percent of cases. Drugs such as cabergoline, which is used to treat certain pituitary tumors, alone or in combination with ketoconazole, a drug normally used to treat fungal infections, have been shown to be effective in some patients with Cushing’s disease. More recently, mefipristone-best known as the abortion pill RU-486-was approved by the FDA to treat CD. Despite these advances in medical therapy, the Salk scientists say additional therapeutic approaches are needed for CD. “Pituitary tumors are extremely difficult to control,” says Michael Downes, a senior staff scientist in the Gene Expression Laboratory and a co-author of the study. “To control them, you have to kill cells in the pituitary gland that are proliferating, which could prevent the production of a vital hormone.” Previous studies have found that, by itself, TR4 is a natural target for other signaling molecules in the pituitary. Small-molecule inhibitors that have been developed for other cancers could be potentially applied to disrupt this signaling cascade. “Our discovery,” says Evans, a Howard Hughes Medical Institute investigator and holder of the March of Dimes Chair in Molecular and Developmental Biology, “might lead clinicians to an existing drug that could be used to treat Cushing’s disease.” Source: Salk Institute
×
×
  • Create New...