Using Stem Cells For Treatment

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Stem cells

Stem cells

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  • 1. Using stem cells for treatment
    • Aims:
    • Recall that embryonic stem cells are unspecialised cells that can develop into any type of cell. (B1.4.4)
    • Understand that there is the potential to use stem cells to treat some illnesses. (B1.4.5)
    • Lesson 15
  • 2. TRUE of FALSE
    • Statements about identical twins.
    • 1. They each have the same genes.
    • 2. They are formed from two separate ova
    • 3. They each have their own placenta and umbilical cord
    • 4. They may be of the same sex or different sexes.
    • 5. They are also known as fraternal twins.
    • 6. They are formed from a single fertilised egg that splits in two.
  • 3. Unspecialised cells
    • In the future it may be possible to clone humans. But most scientists don’t want to clone human beings. However, some scientists do want to clone human embryos. They think that some cells from cloned embryos (stem cells) could be used to treat diseases.
    • Unspecialised human cells could be used to treat certain diseases where cells are not produced or not being produced properly.
  • 4. Therapeutic cloning
  • 5. Therapeutic cloning.
    • New brain cells could be made for patients with Parkinson's disease.
    • But the new cells would have to have the same genes as the person getting them as a treatment.
    • If foreign cells are used, they are rejected.
    • Cloning could be used to produce an embryo with the same genes as the patient.
  • 6. Questions (F)
    • The cells of an embryo are unspecialised. What does this mean?
    • How can adult humans be cloned?
    • How can embryos be cloned?
    • Why do some scientists believe that cloning embryos can be useful?
  • 7. Questions (H)
    • The cells of an embryo are unspecialised. What does this mean?
    • What is the difference between cloning adult humans and human embryos?
    • Why do some scientists believe that cloning embryos can be useful?
  • 8. Additional therapeutic cloning questions
    • How are stem cells different from other cells?
    • Explain why scientists think stem cells would be useful in treating Parkinson's disease.
    • Explain how this is different from cloning an adult.
    • For each of these cells , say whether or not your body would reject it.
    • Bone marrow from your twin
    • Your own skin cells
    • A cloned embryo stem cell