Name: isolation and culture of adult epithelial stem cells from human skin
Uploaded: 2011-03-31T13:00:00
Description: Watch this Scientific Journal Video about Isolation and Culture of Adult Epithelial Stem Cells from Human Skin at JoVE.com

Este trabalho é financiado pelo NIH / NCI conceder R01CA-118916

1. Extrair células-tronco epiteliais da pele humana <ol><li> Antes de iniciar o procedimento de isolar células-tronco epiteliais é preciso preparar os respectivos meios e reagentes (ver tabela 1). </li><li> Frescos adulto pele do couro cabeludo humano de procedimentos facelift ou biópsia com punch é coletado e, em seguida incubar em DMEM FBS / 10% / Dispase (4 mg / mL) durante a noite a 4 ° C. Incubação por 2-4 horas a 37 ° C também é eficaz. Pedaços de pele deve ser uma largura máxima de 1 cm para permit...

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Os métodos de extração de células e cultura descritos são surpreendentemente fáceis e reprodutíveis. Temos gerado culturas de células-tronco epiteliais de dezenas de indivíduos através de uma faixa etária ampla, incluindo pacientes com defeitos da pele herdado 18. É melhor para começar o processo no dia da colheita de tecidos, no entanto células permanecerá viável nos meios de comunicação sobre o gelo por vários dias, facilitando o transporte de noite, se necessário. Pele facelift descarta...

Media dos queratinócitos (KCM) [DMEM e Ham s F12 (GIBCO, 3:1), adenina (Sigma, 180 mM), 10% de soro fetal bovino (GIBCO), a toxina do cólera (ICN, 0,1 nM), a penicilina / estreptomicina (GIBCO, 100 U / ml e 100 mg / ml, respectivamente), hidrocortisona (Sigma, 0,4 mg / ml, 1,1 mM), T/T3 (transferrina, GIBCO, 5 mg / ml, 649 nM e triiodo-l-thyronine, Sigma, 2 nM) , a insulina (Sigma, 5 mg / ml, 862 nM) e EGF (Sigma, 10 ng / ml, 1,6 nM), pH 7,2]

isolation and culture of adult epithelial stem cells from human skin

A homeostase de todos os tecidos auto-renovação é dependente das células-tronco adultas. Como células-tronco indiferenciadas sofrer divisões assimétricas, que geram células-filhas que mantêm o fenótipo de células-tronco e trânsito ampliando-cells (células TA) que migram do nicho de células-tronco, são submetidos a rápida proliferação e diferenciação terminal para repovoar o tecido. Células-tronco epiteliais foram identificados na epiderme, folículo piloso, e intestino como células com alto potencial proliferativo in vitro e como o ciclismo slow-label de retenção de células in vivo 1-3. Adulto, tecido-específicos de células-tronco são responsáveis ​​pela regeneração dos tecidos em que residem durante turnover fisiológico normal, assim como em épocas de estresse 4-5. Além disso, as células-tronco são geralmente consideradas como multi-potentes, possuindo a capacidade de dar origem a vários tipos de células dentro do tecido 6. Por exemplo, roedor cabelos células-tronco do folículo pode gerar epiderme, glândulas sebáceas e folículos pilosos 7-9. Nós mostramos que as células-tronco do humano região bojo folículo piloso apresentam potencialidade multi-10. Células-tronco tornaram-se uma ferramenta valiosa na pesquisa biomédica, devido à sua utilidade como um sistema in vitro para estudar a biologia do desenvolvimento, diferenciação, tumorigênese e para a sua eventual utilidade terapêutica. É provável que células-tronco adultas do epitélio será útil no tratamento de doenças como displasias ectodérmicas, monilethrix, síndrome de Netherton, doença de Menkes, epidermólise bolhosa hereditária e alopecias 11-13. Além disso, outros problemas de pele, como queimaduras, feridas crônicas e úlceras irá beneficiar de terapias com células-tronco relacionadas 14,15. Dado o potencial para a reprogramação de células adultas em estado pluripotentes (células iPS) 16,17, as células adultas de fácil acesso e expansível-tronco na pele humana pode fornecer uma valiosa fonte de células para a indução e terapia a jusante de uma ampla gama de doenças, incluindo diabetes e doença de Parkinson.

Watch this Scientific Journal Video about Isolation and Culture of Adult Epithelial Stem Cells from Human Skin at JoVE.com

Isolation and Culture of Adult Epithelial Stem Cells from Human Skin

Uma maneira rápida e robusta de isolar células-tronco adultas viável epiteliais da pele humana é descrito. O método utiliza a digestão enzimática da matriz de colágeno da pele, seguido por arrancar dos folículos pilosos e isolamento de células em suspensão simples ou fragmentos de tecido para cultura de células.

Isolamento e Cultura de Células-Tronco Adultas epitelial da pele humana

The homeostasis of all self-renewing tissues is dependent on adult stem cells. As undifferentiated stem cells undergo asymmetric divisions, they generate ...

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