Awards – Curious Cat Science and Engineering Blog https://engineering.curiouscatblog.net Science and Engineering: Innovation, Research, Education and Economics Wed, 18 May 2016 14:20:51 +0000 en-US hourly 1 https://wordpress.org/?v=5.4 International Science Research Scholar Grants https://engineering.curiouscatblog.net/2016/05/24/international-science-research-scholar-grants/ https://engineering.curiouscatblog.net/2016/05/24/international-science-research-scholar-grants/#respond Tue, 24 May 2016 14:52:04 +0000 http://engineering.curiouscatblog.net/?p=5226 Continue reading ]]> The Howard Hughes Medical Institute (HHMI), Bill & Melinda Gates Foundation, Wellcome Trust, and Calouste Gulbenkian Foundation have announced the International Research Scholars Program which aims to support up to 50 outstanding early career scientists worldwide. The program’s aim is to help develop scientific talent worldwide.

The new international competition is seeking top early career researchers from a wide variety of biomedical research fields. Applicants must have started their first independent research position on or after April 1, 2009. Awardees will be invited to participate in research meetings with scientists supported by the funders. These meetings facilitate the exchange of ideas, stimulate new research, and provide an opportunity for collaborative endeavors within the international scientific community.

  • Awardees will receive a total of $650,000 over five years.
  • Applications are due June 30, 2016.
  • Awardees will be notified in April 2017.

HHMI and its partners have committed a total of $37.4 million for the International Research Scholars Program and will award each scientist who is selected a total of $650,000 over five years. The competition is open to scientists who have trained in the U.S. or United Kingdom for at least one year. Additionally, eligible scientists must have run their own labs for less than seven years, and work in one of the eligible countries.

Nieng Yan

Although Nieng Yan had several grants when she started her lab at Tsinghua University in 2007, she barely had enough money to pay her eight lab members. “In China, there is a limit on the percentage of a grant that you can use to pay people — your graduate students, your postdocs, your technicians, your assistants — to a decent level,” she explains. After struggling to balance her budget for several years, Yan’s scientific achievements and potential landed her an international grant from HHMI in 2012. “The amount of money provided by Hughes is relatively small compared to other programs, but it has the advantage that you can freely decide what to do with it,” says Yan. In fact, HHMI’s science officers encouraged Yan to use her five-year International Early Career Award (IECS) to cover the cost of paying her lab team, explaining that the money could be used in any way that assisted her research. Today, Yan has 15 people working in her lab helping to elucidate the structures of proteins that move molecules in and out of cells. The protein channels and transporters they study are mutated in a number of diseases — including diabetes and cancer — and understanding how they work could help in the development of drugs that block their ill effects. For example, the team recently solved the structure of GLUT1 – a glucose transporter that is often overexpressed in malignant tumor cells. Their data may provide clues for how to inhibit the transporter and perhaps even reveal a way to use it to deliver chemotherapeutic drugs. Photo Credit: Kevin Wolf (AP)

Countries that are not eligible for this competition include the G7 countries (Canada, France, Germany, Italy, Japan, United Kingdom and United States), as well as countries identified by the U.S. Department of Treasury, Office of Foreign Assets Control (OFAC) as being subject to comprehensive country or territory-wide sanctions or where current OFAC regulations prohibit U.S. persons or entities from engaging in the funding arrangements contemplated by this grant program. For this program, such sanctioned countries or territories currently include Iran, North Korea, Sudan, Syria, and the Crimea region of Ukraine.

Related: Directory of Science and Engineering Scholarships and FellowshipsFunding Sources for Independent Postdoctoral Research Projects in BiologyScientific Research Spending Cuts in the USA and Increases Overseas are Tempting Scientists to Leave the USA (2013)HHMI Expands Support of Postdoctoral Scientists (2009)Science, Engineering and Math Fellowships

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Youyou Tu: The First Chinese Woman to Win a Nobel Prize https://engineering.curiouscatblog.net/2015/10/17/youyou-tu-the-first-chinese-woman-to-win-a-nobel-prize/ https://engineering.curiouscatblog.net/2015/10/17/youyou-tu-the-first-chinese-woman-to-win-a-nobel-prize/#comments Sat, 17 Oct 2015 12:45:11 +0000 http://engineering.curiouscatblog.net/?p=5100 Continue reading ]]> The Nobel Prize in Physiology or Medicine 2015 was divided, one half jointly to William C. Campbell (born Ireland, now USA) and Satoshi ÅŒmura (Japan) “for their discoveries concerning a novel therapy against infections caused by roundworm parasites” and the other half to Youyou Tu (China) “for her discoveries concerning a novel therapy against Malaria”.

Youyou Tu is the first Chinese woman to win a Nobel Prize.

Diseases caused by parasites have plagued humankind for millennia and constitute a major global health problem. In particular, parasitic diseases affect the world’s poorest populations and represent a huge barrier to improving human health and wellbeing. This year’s Nobel Laureates have developed therapies that have revolutionized the treatment of some of the most devastating parasitic diseases.

William C. Campbell and Satoshi ÅŒmura discovered a new drug, Avermectin, the derivatives of which have radically lowered the incidence of River Blindness and Lymphatic Filariasis, as well as showing efficacy against an expanding number of other parasitic diseases. Youyou Tu discovered Artemisinin, a drug that has significantly reduced the mortality rates for patients suffering from Malaria.

These two discoveries have provided humankind with powerful new means to combat these debilitating diseases that affect hundreds of millions of people annually. The consequences in terms of improved human health and reduced suffering are immeasurable.

image of Artemisinin

via Noble Prize website

Malaria was traditionally treated by chloroquine or quinine, but with declining success. By the late 1960s, efforts to eradicate Malaria had failed and the disease was on the rise. At that time, Youyou Tu in China turned to traditional herbal medicine to tackle the challenge of developing novel Malaria therapies. From a large-scale screen of herbal remedies in Malaria-infected animals, an extract from the plant Artemisia annua emerged as an interesting candidate.

However, the results were inconsistent, so Tu revisited the ancient literature and discovered clues that guided her in her quest to successfully extract the active component from Artemisia annua. Tu was the first to show that this component, later called Artemisinin, was highly effective against the Malaria parasite, both in infected animals and in humans. Artemisinin represents a new class of antimalarial agents that rapidly kill the Malaria parasites at an early stage of their development, which explains its unprecedented potency in the treatment of severe Malaria.

Youyou Tu was born in 1930 in China and is a Chinese citizen. She graduated from the Pharmacy Department at Beijing Medical University in 1955. From 1965-1978 she was Assistant Professor at the China Academy of Traditional Chinese Medicine, from 1979-1984 Associate Professor and from 1985 Professor at the same Institute. From 2000, Tu has been Chief Professor at the China Academy of Traditional Chinese Medicine. She doesn’t have a doctorate, very rare for a Nobel Prize winner in the sciences.

Read the full press release

Related: Nobel Prize in Physiology or Medicine 2012 for Reprogramming Cells to be PluripotentNobel Prize in Physiology or Medicine 2008Parasites in the Gut Help Develop a Healthy Immune System2011 Nobel Prize in Physiology or MedicineVideo showing malaria breaking into cell

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2014 Ranking of the World’s Best Research Universities https://engineering.curiouscatblog.net/2015/02/28/2014-ranking-of-the-worlds-best-research-universities/ https://engineering.curiouscatblog.net/2015/02/28/2014-ranking-of-the-worlds-best-research-universities/#comments Sat, 28 Feb 2015 15:36:52 +0000 http://engineering.curiouscatblog.net/?p=4932 Continue reading ]]> Shanghai’s Jiao Tong University produces an annual ranking of research universities. The methodology values publications and faculty awards (Nobel and Fields) which belies the focus on ranking research not for example the quality of education provided.

You could argue one measure does partially address teaching as the Nobel and Fields prizes to alumni are created to the institution (that is separate from a measure of faculty that receive those honors). I would agree it partially measure the education though it also measures the ability of that school to attract the absolute best candidates (whether they would have been just as successful going elsewhere is a fair question).

Results from the 2014 rankings of top 500 universities with the number of schools by country:

location Top 100 % of World
Population
% of World GDP % of top 500
USA

52     4.5%   22.2%  29.2%
United Kingdom

  8  0.9  3.5 7.6
Germany

  4  1.1  5.0 7.8
Canada

  4  0.5  2.4 4.2
France

  4  0.9  3.8 4.2
Japan

  3  1.8  7.8 3.8
Australia

  4  0.3  1.5 3.8
China

  0  19.2  11.7 8.8
Netherlands

  4  0.2  1.3 2.6
Sweden

  4  0.1  0.8 2.2
Switzerland

  5  0.1  0.8 1.4
South Korea

  0  .7  1.7 2.0
India

  0  17.0  1.9 0.2

The top countries for top 100 and top 500 schools are listed above, but I skip over many after the top 7 or 8 to include a few countries I like to watch, see the ranking site for the full list. Country population and GDP data were taken from the World Development Indicators 2013, by the World Bank.

There is little change in top 100 since 2008, which I think is a good sign, it wouldn’t make much sense to have radical shifts quickly in this type of ranking. The USA lost 2 schools in the top 100, UK lost 3, Germany lost 2, Switzerland gained 2, Netherlands gain 2…

There is more change in the top 500 where changes are more sensible (there is probably not much separating schools ranked in the 300’s from those in the 500’s so variation and strong pushes (from countries like China) can have an impact. China gained 14 more schools in the top 500. China’s GDP also increased from 6.6% of global GDP to 11.7%.

University of Wisconsin – Madison is 24th, it was 17th in 2008 My father taught there while I grew up.

Top 10 schools (same schools as 2008 with slight shifts of where a couple are ranked):

  • Harvard University
  • Stanford University
  • Massachusetts Institute of Technology(MIT)
  • University of California at Berkeley
  • University of Cambridge
  • Princeton University
  • California Institute of Technology
  • Columbia University
  • University Chicago
  • University of Oxford

I find this whole ranking interesting (even with the limitations). They did an alternative ranking this year removing the Nobel and Fields factors and while it changes the results some, it doesn’t change a huge amount (less than I would have guessed). If it were me I would like to add more of those awards rather than eliminate them, but I understand the sense behind remove them. This is especially true if you want to help emerging institutions.

I don’t think China really think China has the 2nd most top 500 schools for research but that is what this list shows. I think China is making great progress but is really quite a bit behind the top countries. Their lack of top 100 schools partially reflects this. I do believe China could be in 2nd place in 10 or 15 years, but that have to continue the good things they are doing and do more beyond that.

The USA remains in very strong position. The strong university research success is one of the primary reasons the USA’s economy is so relatively strong. And the strong economy provides a great deal of funding to keep the USA’s research position strong. Never-the-less I do expect the USA’s relative advantage in this area to continue declining – mainly due to other countries (including China most significantly) investing heavily in science and engineering research. The anti-science attitudes of many powerful political people in the USA hurts; but all they have done is decrease the advantage the USA holds, they haven’t managed to ruin the USA’s strong position yet.

Since this effort is partially to spur and measure Chinese schools you can see why there would be pressure from the Chinese universities to help, which removing Nobel and Fields factors does do.

I repeat my prediction from back in 2008 (as would most, I would imagine) that China and India will have much greater representation 10-20 years from now (those gains will have to come at the expense of others and I would imagine Europe and the USA will show declines).

Related: 2008 rankings of the World’s Best Research Universities2007 rankings of the World’s Best Research Universities2014 Country H-index Rank for Science PublicationsTop 10 Manufacturing Countries 2006Asia: Rising Stars of Science and Engineering

My thoughts from 2008 on some things I wish they would adjust.

  • Some method of valuing company creation (by “alumni”, even people that do so before graduating, and faculty) – giving larger value the greater the economic gain provided by the company. Also other ways of valuing economic value creation.
  • Split credit for Nobel and Fields winners among where they are when they won, where they did the research and where they are now (I can imagine this would be a huge hassle still I think it would be interesting – and it seems we should be able to devote a few people to making developing some really interesting data I think many people would find interesting). Now all credit goes to where they are when they win. They also give credit to the schools the award winners received degrees from (which I like).
  • Add some additional awards to the calculations – there is a problem in that many awards are geographic or country specific still ideally add more.
  • Additional examining of the citation importance – I like what they are doing, I just would like to see more in that area.
  • Include more journals in the count of output of articles – again I can understand the difficulty, I just would like to see that added, ideally.
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Leslie Lamport Receives 2013 ACM Turing Award https://engineering.curiouscatblog.net/2014/11/22/leslie-lamport-receives-2013-acm-turing-award/ https://engineering.curiouscatblog.net/2014/11/22/leslie-lamport-receives-2013-acm-turing-award/#comments Sat, 22 Nov 2014 15:30:33 +0000 http://engineering.curiouscatblog.net/?p=4895 Continue reading ]]> Leslie Lamport, a Principal Researcher at Microsoft Research, has been named as the recipient of the 2013 ACM A.M. Turing Award for imposing clear, well-defined coherence on the seemingly chaotic behavior of distributed computing systems, in which several autonomous computers communicate with each other by passing messages. He devised important algorithms and developed formal modeling and verification protocols that improve the quality of real distributed systems. These contributions have resulted in improved correctness, performance, and reliability of computer systems.

ACM (Association for Computing Machinery) announced that the funding level for the ACM Turing Award is now $1,000,000 (to be provided by Google). The new amount is four times its previous level. It seems to me the 14th of November 2014 is a bit late to announce the 2013 award winner, but for an extra $750,000 I would gladly wait a year (or a decade for that matter).

The new award level brings the computer science award to the level of Nobel Prizes and the Fields medal.

Leslie Lamport’s 1978 paper, “Time, Clocks, and the Ordering of Events in a Distributed System,” one of the most cited in the history of computer science.

Read more about the work of Leslie Lamport.

Related: Barbara Liskov wins Turing Award (2009)Donald Knuth, Computer Scientist (2006)Google 2006 Anita Borg Scholarship2008 Draper Prize for Engineering

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Starting a Career in Science to Fight Cancer https://engineering.curiouscatblog.net/2014/06/14/starting-a-career-in-science-to-fight-cancer/ https://engineering.curiouscatblog.net/2014/06/14/starting-a-career-in-science-to-fight-cancer/#comments Sat, 14 Jun 2014 15:42:32 +0000 http://engineering.curiouscatblog.net/?p=4782 Continue reading ]]>

Keven Stonewall Preventing Colon Cancer from VNM USA on Vimeo.

Keven Stonewall is a student at the University of Wisconsin – Madison working to prevent colon cancer.

Related: I Always Wanted to be Some Sort of ScientistHigh School Student Creates Test That is Much More Accurate and 26,000 Times Cheaper Than Existing Pancreatic Cancer TestsWebcast of a T-cell Killing a Cancerous Cell

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Nobel Prize Winner Criticizes Role of Popular Science Journals in the Scientific Process https://engineering.curiouscatblog.net/2013/12/10/nobel-prize-winner-criticizes-role-of-popular-science-journals-in-the-scientific-process/ https://engineering.curiouscatblog.net/2013/12/10/nobel-prize-winner-criticizes-role-of-popular-science-journals-in-the-scientific-process/#comments Tue, 10 Dec 2013 11:41:07 +0000 http://engineering.curiouscatblog.net/?p=4661 Continue reading ]]> Randy Schekman, 2013 Nobel Prize winner in physiology or medicine has written another critique of the mainstream, closed-science journals. How journals like Nature, Cell and Science are damaging science

Mine is a professional world that achieves great things for humanity. But it is disfigured by inappropriate incentives. The prevailing structures of personal reputation and career advancement mean the biggest rewards often follow the flashiest work, not the best. Those of us who follow these incentives are being entirely rational – I have followed them myself – but we do not always best serve our profession’s interests, let alone those of humanity and society.

We all know what distorting incentives have done to finance and banking. The incentives my colleagues face are not huge bonuses, but the professional rewards that accompany publication in prestigious journals – chiefly Nature, Cell and Science.

There is a better way, through the new breed of open-access journals that are free for anybody to read, and have no expensive subscriptions to promote. Born on the web, they can accept all papers that meet quality standards, with no artificial caps. Many are edited by working scientists, who can assess the worth of papers without regard for citations. As I know from my editorship of eLife, an open access journal funded by the Wellcome Trust, the Howard Hughes Medical Institute and the Max Planck Society, they are publishing world-class science every week.

Just as Wall Street needs to break the hold of the bonus culture, which drives risk-taking that is rational for individuals but damaging to the financial system, so science must break the tyranny of the luxury journals. The result will be better research that better serves science and society.

Very well said. The closed access journal culture is damaging science in numerous ways. We need to stop supporting those organizations and instead support organizations focused more on promoting great scientific work for the good of society.

Related: Fields Medalist Tim Gowers Takes Action To Stop Cooperating with Anti-Open Science CartelScience Journal Publishers Stay StupidHarvard Steps Up Defense Against Abusive Journal PublishersThe Future of Scholarly Publication (2005)The Trouble with Incentives: They WorkWhen Performance-related Pay BackfiresRewarding Risky Behavior

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2012 Gordon Prize for Innovation in Engineering and Technology Education https://engineering.curiouscatblog.net/2013/01/10/2012-gordon-prize-for-innovation-in-engineering-and-technology-education/ https://engineering.curiouscatblog.net/2013/01/10/2012-gordon-prize-for-innovation-in-engineering-and-technology-education/#respond Thu, 10 Jan 2013 12:02:00 +0000 http://engineering.curiouscatblog.net/?p=4406 Continue reading ]]> I have posted on the Olin College of Engineering several times. I really like what they are doing. Innovation in engineering education will pay high dividends, especially providing a focus on the nexus of engineering and entrepreneurship.

Olin College of Engineering’s three founding academic leaders, Richard Miller, David Kerns and Sherra Kerns, received one of engineering’s highest honors – the Bernard M. Gordon Prize. The $500,000 prize is awarded by the National Academy of Engineering to recognize innovation in engineering and technological education.

“This team of educational innovators has had a profound impact on society by improving the way we educate the next generation of engineers,” said NAE President Charles M. Vest. “Olin serves as an exemplar for the rest of the engineering world and a collaborative agent for change.”

Armed with one of the largest gifts in the history of higher education, the F. W. Olin Foundation recruited Richard Miller as Olin’s first employee in 1999. To help build the college from scratch, Miller recruited the founding academic leadership team including David Kerns and Sherra Kerns later that year. Together, they developed a vision for an engaging approach to teaching engineering and a new culture of learning that is intensely student centered.

To insure a fresh approach, Olin does not offer tenure, has no academic departments, offers only degrees in engineering, and provides large merit-based scholarships to all admitted students.

Perhaps the most important contribution the Gordon prize recipients made was the creation of a profoundly inclusive and collaborative process of experimentation and decision-making involving students in every aspect of the invention of the institution. This is illustrated by the decision in 2001 to recruit 30 young students to spend a year as “partners” in residence with the faculty in conducting many experiments together before establishing the first curriculum.

“As entrepreneurs, we learn to listen to our customers. Olin’s innovative approach was co-created by enterprising faculty, inspired students, and a dedicated staff, as well as collecting and integrating innovative approaches from more than 30 other institutions worldwide,” said David Kerns, current faculty at Olin and founding provost and chief academic officer of the college from 1999 to 2007.

With the extensive help of a collaborative team of faculty and students, and the guidance of the late Dr. Michael Moody, a novel academic program emerged. Some of the features include a nearly gender-balanced community, a strong focus on design process throughout all four years, extensive use of team projects, a requirement that students repeatedly “stand and deliver” to the entire community at the end of every semester, an experiential requirement in business and entrepreneurship, a capstone requirement outside of engineering, and a year-long corporate-sponsored design project in which corporations pay $50,000 per project.

Related: Illinois and Olin Aim to Transform Engineering EducationWebcast: Engineering Education in the 21st CenturyImproving Engineering EducationHow the Practice and Instruction of Engineering Must Change


“Engineering is a fundamentally creative endeavor and the more perspectives that contribute to a solution, the better the solution. From the beginning, we sought to design programs attractive to all people. Today, we graduate a higher percentage of women than any other co-ed engineering program in the country,” said Sherra Kerns, current faculty and founding VP of Innovation and Research.

Innovation in engineering and other education continues to push the demand for online education. Many engineering graduates continue their education seeking MBA, and other, degrees from online graduate school programs.

The new learning model, and the inclusive process that produced it, are attracting substantial international attention. In the past three years about 200 universities have visited Olin to benchmark and explore ways of initiating major changes in their own curriculum. Nine other institutions have already made substantial changes that were inspired by the Olin program and dozens of others are considering such changes.

Dr. Richard Miller, as the President and first employee, provided the strategic vision and overall leadership of all aspects of the process of developing this new institution, including the shaping of its academic and institutional mission. Dr. David Kerns, as Founding Provost, recruited Olin’s founding faculty and deans, led the establishment of the collaborative faculty process resulting in Olin’s three program curricula, and established the employment relations for faculty in an environment without tenure. Dr. Sherra Kerns, as Founding VP of Innovation and Research, led the initiative to establish a gender-balanced community, led the efforts to achieve all levels of accreditation for the new programs, and led in creating a culture of innovation and intellectual vitality throughout the institution.

Read the full press release

Related: Improving Undergraduate Science EducationGordon Engineering Education Prize

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Nobel Prize in Physiology or Medicine 2012 for Reprogramming Cells to be Pluripotent https://engineering.curiouscatblog.net/2012/10/17/nobel-prize-in-physiology-or-medicine-2012-for-reprogramming-cells-to-be-pluripotent/ https://engineering.curiouscatblog.net/2012/10/17/nobel-prize-in-physiology-or-medicine-2012-for-reprogramming-cells-to-be-pluripotent/#comments Wed, 17 Oct 2012 05:46:25 +0000 http://engineering.curiouscatblog.net/?p=4317 Continue reading ]]> The Nobel Prize in Physiology or Medicine 2012 was awarded “for the discovery that mature cells can be reprogrammed to become pluripotent.” The prize goes jointly to Sir John B. Gurdon, Gurdon Institute in Cambridge, UK and Shinya Yamanaka, Kyoto University (he is also a senior investigator at the Gladstone Institutes in the USA).

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.

All of us developed from fertilized egg cells. During the first days after conception, the embryo consists of immature cells, each of which is capable of developing into all the cell types that form the adult organism. Such cells are called pluripotent stem cells. With further development of the embryo, these cells give rise to nerve cells, muscle cells, liver cells and all other cell types – each of them specialised to carry out a specific task in the adult body. This journey from immature to specialised cell was previously considered to be unidirectional. It was thought that the cell changes in such a way during maturation that it would no longer be possible for it to return to an immature, pluripotent stage.

Related: 2011 Nobel Prize in Physiology or MedicineNobel Prize in Physiology or Medicine 20082012 Nobel Prize in Chemistry to Robert Lefkowitz and Brian Kobilka


John B. Gurdon challenged the dogma that the specialised cell is irreversibly committed to its fate. He hypothesised that its genome might still contain all the information needed to drive its development into all the different cell types of an organism. His 1962 experiment showed the nucleus of the mature cell had not lost its capacity to drive development to a fully functional organism.

Gurdon’s landmark discovery was initially met with scepticism but became accepted when it had been confirmed by other scientists. It initiated intense research and the technique was further developed, leading eventually to the cloning of mammals. Gurdon’s research taught us that the nucleus of a mature, specialized cell can be returned to an immature, pluripotent state. But his experiment involved the removal of cell nuclei with pipettes followed by their introduction into other cells. Would it ever be possible to turn an intact cell back into a pluripotent stem cell?

Shinya Yamanaka was able to answer this question in a scientific breakthrough more than 40 years after Gurdon´s discovery. His research concerned embryonal stem cells, i.e. pluripotent stem cells that are isolated from the embryo and cultured in the laboratory. Such stem cells were initially isolated from mice by Martin Evans (Nobel Prize 2007) and Yamanaka tried to find the genes that kept them immature. When several of these genes had been identified, he tested whether any of them could reprogram mature cells to become pluripotent stem cells.

Yamanaka and his co-workers introduced these genes, in different combinations, into mature cells from connective tissue, fibroblasts, and examined the results under the microscope. They finally found a combination that worked, and the recipe was surprisingly simple. By introducing four genes together, they could reprogram their fibroblasts into immature stem cells! The resulting induced pluripotent stem cells (iPS cells) could develop into mature cell types such as fibroblasts, nerve cells and gut cells.

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2012 Nobel Prize in Chemistry to Robert Lefkowitz and Brian Kobilka https://engineering.curiouscatblog.net/2012/10/10/2012-nobel-prize-in-chemistry-to-robert-lefkowitz-and-brian-kobilka/ https://engineering.curiouscatblog.net/2012/10/10/2012-nobel-prize-in-chemistry-to-robert-lefkowitz-and-brian-kobilka/#respond Wed, 10 Oct 2012 11:44:39 +0000 http://engineering.curiouscatblog.net/?p=4309 Continue reading ]]> The Royal Swedish Academy of Sciences has decided to award the Nobel Prize in Chemistry for 2012 to

  • Robert J. Lefkowitz, Howard Hughes Medical Institute and Duke University Medical Center, Durham, NC, USA
  • and Brian K. Kobilka, Stanford University School of Medicine, Stanford, CA, USA

for studies of G-protein–coupled receptors.

Your body is a fine-tuned system of interactions between billions of cells. Each cell has tiny receptors that enable it to sense its environment, so it can adapt to new situtations. Robert Lefkowitz and Brian Kobilka are awarded the 2012 Nobel Prize in Chemistry for groundbreaking discoveries that reveal the inner workings of an important family of such receptors: G-protein–coupled receptors.

For a long time, it remained a mystery how cells could sense their environment. Scientists knew that hormones such as adrenalin had powerful effects: increasing blood pressure and making the heart beat faster. They suspected that cell surfaces contained some kind of recipient for hormones. But what these receptors actually consisted of and how they worked remained obscured for most of the 20th Century.

Lefkowitz started to use radioactivity in 1968 in order to trace cells’ receptors. He attached an iodine isotope to various hormones, and thanks to the radiation, he managed to unveil several receptors, among those a receptor for adrenalin: β-adrenergic receptor. His team of researchers extracted the receptor from its hiding place in the cell wall and gained an initial understanding of how it works.

The team achieved its next big step during the 1980s. The newly recruited Kobilka accepted the challenge to isolate the gene that codes for the β-adrenergic receptor from the gigantic human genome. His creative approach allowed him to attain his goal. When the researchers analyzed the gene, they discovered that the receptor was similar to one in the eye that captures light. They realized that there is a whole family of receptors that look alike and function in the same manner.

Today this family is referred to as G-protein–coupled receptors. About a thousand genes code for such receptors, for example, for light, flavour, odour, adrenalin, histamine, dopamine and serotonin. About half of all medications achieve their effect through G-protein–coupled receptors.

The studies by Lefkowitz and Kobilka are crucial for understanding how G-protein–coupled receptors function. Furthermore, in 2011, Kobilka achieved another break-through; he and his research team captured an image of the β-adrenergic receptor at the exact moment that it is activated by a hormone and sends a signal into the cell. This image is a molecular masterpiece – the result of decades of research.

Related: More details on the research2011 Nobel Prize in Chemistry2009 Nobel Prize in Chemistry: the Structure and Function of the RibosomeThe Nobel Prize in Chemistry 2008

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