Em que consiste a clonagem terapêutica?
Autor: Acadêmicas de Odontologia | Publicado: 2011-06-02T18:30:00-03:00

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&nbsp;&nbsp; A clonagem terapêutica é uma técnica que também possibilita a obtenção de células-tronco embrionárias. Consiste em retirar o núcleo de uma célula e colocar num óvulo sem núcleo. Ela começar a dividir-se, obtendo-se células-tronco com a capacidade de diferenciar-se em todos os tecidos humanos. Nesse caso, se uma pessoa sofrer uma lesão num acidente, teoricamente, pode-se conseguir uma medula nova ou qualquer outro órgão com a vantagem de que estes não serão rejeitados porque têm a mesma constituição do organismo do receptor. Existem, porém, aqueles que se opõem à utilização dessa técnica porque acham que ela vai abrir caminho para a clonagem reprodutiva, embora esteja claro que, não havendo a transferência para um útero, nunca se conseguirá produzir um clone. Mas, a principal limitação é que, no caso de doenças genéticas, o doador não pode ser a própria pessoa porque todas as suas células têm o mesmo defeito genético.