The wacky scientist
Monday, February 25, 2013
Medical School
It’s been a
while since I last posted!! I've finally
got an offer to study medicine at Kings College London!! I am especially
excited because Kings is at the forefront of stem cell research and I would
love to be involved in research at some point. They recently opened
the “stem cell hotel” funded by the medical research council which aims to encourage
collaborative experiments between clinicians and cell biologists.
I definitely
think we are heading in the right direction by integrating the work carried out
by the scientists in labs with that of the clinician who has expert insight
into the treatment of disease.
Saturday, December 22, 2012
2013
So it's that time of year again in which we reflect on the main events of 2012 and look ahead to next year...
2013 Smart Guide: Revolutionary human stem cell trial - health - 19 December 2012 - New Scientist
If all goes to plan, 2013 should see the first human trial of "rewound" cells (iPSC)! - I'd love to hear your views and predictions for the incoming year...please post below!
and....MERRY CHRISTMAS AND HAPPY NEW YEAR :D
Friday, November 30, 2012
BLOOD STEM CELLS - Bringing stem cell technology…..into the clinic?
Have a peak at this
article in the telegraph:
It sounds almost too
good to be true! The team at Cambridge
University that conducted
the trial have hailed the breakthrough as the easiest and safest source of
producing stem cells; however the safety of using
such stem cells still remains unknown.
This could prove to be
an excellent and efficient method to slowly introduce the use of stem cell
technology in the clinic in a more widespread manner. One of the many benefits
is that these new stem cells can be stored for a significant period of time and
grow fairly easily. The “late outgrowth endothelial progenitor cells” – as they’re
known, are then subsequently turned into induced pluripotent stem (iPS) cells,
which can be turned into other body cells.
Up until now scientists
hadn’t found an appropriate type of cell in the blood that could be turned into a
stem cell so this is quite an advance!
One of the other considerations
is that it is much more practical and easy to put into practice in the clinic. Often
iPS cells are taken from the skin or other tissues, which can require surgery
such as a biopsy. These tissue biopsies are undesirable particularly for
children and the elderly whereas taking blood samples is routine for all
patients.
Dr Rana, a lecturer in
Regenerative Medicine, put great emphasis on the need for a cautious approach at this
early stage as there as still many safety issues that need to be overcome.
“The ultimate aim is
to grow tissue … which we can use in replacement therapies, that would be
ideal.”
“But a really important step is, rather than simple think
about the technology in a laboratory, transfer it into a clinic and make it
useful for everybody.”
Tuesday, October 16, 2012
Nobel Prize in medicine 2012 for Yamanaka and Gurdon
The Nobel Prize
in Physiology or Medicine 2012 was awarded jointly to Sir John B. Gurdon and
Shinya Yamanaka "for the
discovery that mature cells can be reprogrammed to become pluripotent"
The Nobel Prize recognizes two scientists who
discovered that mature, specialised cells can be reprogrammed to become
immature cells capable of developing into all tissues of the body. Their findings
have revolutionised our understanding of how cells and organisms develop.
John B. Gurdon discovered in 1962 that the
specialisation of cells is reversible. In a classic experiment,
he replaced the immature cell nucleus in an egg cell of a frog with the nucleus
from a mature intestinal cell. This modified egg cell
developed into a normal tadpole. The DNA of the mature cell
still had all the information needed to develop all cells in the frog.
Shinya Yamanaka discovered more than 40 years
later, in 2006, how intact mature cells in mice could be
reprogrammed to become immature stem cells. Surprisingly, by introducing only a
few genes, he could reprogram mature cells to become
pluripotent stem cells, i.e. immature cells that are able to
develop into all types of cells in the body.
These groundbreaking discoveries have
completely changed our view of the development and cellular
specialisation. We now understand that the mature cell does not have to be
confined forever to its specialised state. Textbooks have been rewritten and
new research fields have been established. By reprogramming human cells,
scientists have created new opportunities to study diseases
and develop methods for diagnosis and therapy.
I think anyone who is remotely interested in
stem cells will recognise the important contributions these two scientists have
made to this field and it's about time they got some recognition for it!
iPSC timeline *updated*
Hi guys! I thought I would repost a link of a timeline I made of all the main breakthroughs in reprogrammed stem cell research (iPSC - Induced pluripotent stem cells) in the last 10 years:
Reprogrammed stem cells are adult cells turned back into a stem-like state, restoring their lost potential.
CLICK ON THE LINK TO VIEW THE TIMELINE IN FULL WITH THE DESCRIPTIONS: iPSC | View timeline
Sunday, October 7, 2012
An eye into the future
A few months ago, I wrote a post about a recent trial that had been
carried out using
embryonic stem cells to treat diseases of the eye. The trial was carried out on
two patients with different conditions: One with age-related macular
degeneration - the leading cause of blindness in the developed world - and
another patient in her 50s with Stargardt's disease.
It's often said that induced pluripotent stem cells transplantation will be important in the practice of medicine in some distant future, but scientists are keen to suggest the future is almost here.
The study was published online in advance of print in the journal Molecular Medicine.
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