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Esti aici: Dentist > Articole stomatologie > Stiri stomatologie > Dintii extrasi- o posibila sursa de celule stem

Dintii extrasi- o posibila sursa de celule stem

celule stem, dinti de lapte
Dentist.ro | 16.07.2010



Un studiu realizat de cercetorii Universitatii Kyoto din Japonia spune ca pulpa dintr-un dinte extras poate fi o sursa de celulele stem pluripotente induse (iPS- Induced Pluripotent Stem cells), care la fel ca celulele stem embrionale pot forma diferite tipuri de celule.

 

 

Ce sunt celulele stem pluripotente induse?

 

Celulele stem pluripotente induse sunt celule stem obtinute prin reprogramarea genetica a celulelor specializate prin tehnici de inginerie genetica.(conform blog.mymed.ro).

Exista multe zone din corpul uman unde exista potential de celule iPS, recoltate printr-o procedura minima invaziva, motiv pentru care cercetatorii din Japonia au decis sa evalueze cat este de usoara recoltarea celulelor stem din pulpa dentara, care poate fi obtinuta din dintii extrasi.

 

Pentru ce sunt utile celulele stem pluripotente induse?

 


Din sase linii de celule pe care le-au testat cinci din ele au fost viabile. Testele ulterioare au aratat ca aceste linii de celule sunt genetic compatibile cu 20% din populatia japoneza. De asemenea, analiza acestor date demonstreaza ca celulele extrase din pulpa dentara reprezinta o sursa pentru bancile de celule stem pluripotente induse, folosite in medicina regenerativa.

Se considera ca la un nivel de inceput a unei boli, aceasta inovatie ofera perspective de terapie cu aceste celule in tratarea acesteia.

 

Se folosesc azi celulele stem pluripotente induse?

 

Cercetatorul Jacques Nör de la Universitatea din Michigan a spus ca impreuna cu echipa sa au reusit sa extraga celule stem din dintii care oricum trebuiau extrasi.  Cercetatorul a spus ca cel mai interesant lucru in folosirea pulpei dentare este accesul la aceasta sursa de celule stem, in special cele din dintii de lapte.

Insa, cercetatorul atrage atentia asupra unor lucuri importante: “Stim ca acest procedeu nu va vindeca orice. Atata vreme cat oamenii pastreaza acest lucru in minte, poate fi folosit in 5, 10 ,15 ani ca un tratament pentru boli serioase.”


Sursa: medicalnewstoday.com

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