In this next segment on the Stem Cell Research, we will explore the subject in a comparative way. How Do Embryonic and Adult Stem Cells Compare?
"Embryonic Stem Cell Advantages:
1) Flexible -- appear to have the potential to make any cell.
2) Immortal -- one embryonic stem cell line can potentially provide an endless supply of cells with defined characteristics.
3) Availability -- embryos from in vitro fertilization clinics."
"Embryonic Stem Cell Disadvantages:
1) Difficult to differentiate uniformly and homogeneously into a target tissue.
2) Immunogenic -- embryonic stem cells from a random embryo donor are likely to be rejected after transplantation.
3) Tumorigenic -- Capable of forming tumors or promoting tumor formation.
4) DESTRUCTION OF DEVELOPING HUMAN LIFE."
"Adult Stem Cell Advantages:
1) Special adult type stem cells from bone marrow and from umbilical cords have been isolated recently which appear to be as flexible as the embryonic type.
2) Already somewhat specialized--inducement may be simpler.
3) Not immunogenic--recipients who receive the products of their own stem cells will not experience immune rejection.
4) Relative ease of procurement -- some adult stem cells are easy to harvest (skin, muscle, marrow, fat), while others may be more difficult to obtain (brain stem cells). Umbilical and placental stem cells are likely to be readily available.
5) Non-tumorigenic -- tend not to form tumors.
6) NO HARM DONE TO THE DONOR."
"Adult Stem Cell Disadvantages:
1) Limited quantity -- can sometimes be difficult to obtain in large numbers.
2) Finite -- may not live as long as embryonic stem cells in culture.
3) Less flexible (with the exception of #1 above) -- may be more difficult to reprogram to form other tissue types." (Dr. Tadeusz Pacholczyk, Ph.D.)
In our next segment, we will explore "Why Adult Stem Cells are Preferable to Embryonic Stem Cells? Human life is a continuum from conception to natural death. Will we create a culture of life or a culture of death?
"Embryonic Stem Cell Advantages:
1) Flexible -- appear to have the potential to make any cell.
2) Immortal -- one embryonic stem cell line can potentially provide an endless supply of cells with defined characteristics.
3) Availability -- embryos from in vitro fertilization clinics."
"Embryonic Stem Cell Disadvantages:
1) Difficult to differentiate uniformly and homogeneously into a target tissue.
2) Immunogenic -- embryonic stem cells from a random embryo donor are likely to be rejected after transplantation.
3) Tumorigenic -- Capable of forming tumors or promoting tumor formation.
4) DESTRUCTION OF DEVELOPING HUMAN LIFE."
"Adult Stem Cell Advantages:
1) Special adult type stem cells from bone marrow and from umbilical cords have been isolated recently which appear to be as flexible as the embryonic type.
2) Already somewhat specialized--inducement may be simpler.
3) Not immunogenic--recipients who receive the products of their own stem cells will not experience immune rejection.
4) Relative ease of procurement -- some adult stem cells are easy to harvest (skin, muscle, marrow, fat), while others may be more difficult to obtain (brain stem cells). Umbilical and placental stem cells are likely to be readily available.
5) Non-tumorigenic -- tend not to form tumors.
6) NO HARM DONE TO THE DONOR."
"Adult Stem Cell Disadvantages:
1) Limited quantity -- can sometimes be difficult to obtain in large numbers.
2) Finite -- may not live as long as embryonic stem cells in culture.
3) Less flexible (with the exception of #1 above) -- may be more difficult to reprogram to form other tissue types." (Dr. Tadeusz Pacholczyk, Ph.D.)
In our next segment, we will explore "Why Adult Stem Cells are Preferable to Embryonic Stem Cells? Human life is a continuum from conception to natural death. Will we create a culture of life or a culture of death?
No comments:
Post a Comment