220 likes | 602 Views
Human Embryonic Stem Cell Research. Sameer Damle Lilian Ngobi November 18, 2010. Overview. Human Embryonic Stem Cell (HESC) Overview Stem Cell Research Debate HESC Research Stances Graduate students Case Study: Dr. Hwang Wook-Suk Pharmaceutical companies
E N D
Human Embryonic Stem Cell Research SameerDamle Lilian Ngobi November 18, 2010
Overview • Human Embryonic Stem Cell (HESC) Overview • Stem Cell Research Debate • HESC Research Stances • Graduate students • Case Study: Dr. Hwang Wook-Suk • Pharmaceutical companies • Case Study: Advanced Cell Technologies • Politicians • 2010 Supreme Court Case • Religious leaders • Conclusions http://upload.wikimedia.org/wikipedia/commons/6/65/Human_embryonic_stem_cells.png
Stem Cell Overview • Cells with ability to differentiate into many type of cells • HESC: obtained from embryo in its early stages, can differentiate into more than 220 types of cells • Adult Stem Cells: found in differentiated tissues, can differentiate into some type of cells • Induced Pluripotent Stem Cells: cells that have programmed pluripotent properties • Provides fundamental information about complex processes taking place in human body (how different organs are developed) • Can lead to cell based therapies
HESC Controversy • Health care cost reduction vs. value of human life • Many religious ideologies liken HESC research to abortion • Facts concerning scope of research often tailored according to specified interests • Some results of HESC research projects fabricated for publicity or obtained via scientific misconduct • Controversy related to the means of acquiring HESCs • Advertisement against HESC Research • Advertisement supporting HESC Research
HESC Stance: Graduate Students • Goals • Produce meaningful and distinct results • Collaborate with others and disseminate ideas • Dilemmas • Pressure from advisor(s) • Competition with others conducting similar research • Pressure from funding sources
Case Study: Dr. Hwang Woo-Suk • Dr. Hwang and his team announced that they created a HESC with the somatic cell transfer method • Claimed to create cell line from 242 eggs • Published results in Science • Became a national celebrity • Released another study the following year where a cell line was created from 185 eggs • Cloned a dog …………….WOW! So what is HE doing now? Wikipedia Foundation, Inc. (2010, November 9). Hwang Woo-Suk. Retrieved November 12, 2010, from Wikipedia: http://en.wikipedia.org/wiki/Hwang_Woo-suk
Case Study: Dr. Hwang Woo-Suk (cont.) • After a University of Pittsburgh professor distanced himself from Dr. Hwang, public discovered that eggs obtained illegally • Resigned from all official posts • Both of his Science papers declared to be fabricated • Dismissed from position at Seoul National University • Dr. Hwang and five of his collaborators indicted on charges of fraud, embezzlement and breaching bioethic laws http://cache2.asset-cache.net/xc/56440089.jpg?v=1&c=IWSAsset&k=2&d=77BFBA49EF878921F7C3FC3F69D929FD3D6E8E24F8AD364C22B2D1FB70AA98F5F157B300AB4DD349C6E7E4E2CE924510
HESC Stance: Pharmaceutical Companies • Goals • Successfully bring new drugs to the market • Dynamically differentiate discoveries compared to other pharmaceutical companies • Dilemmas • Pressure to make a profit • Competition between companies to release next big drug • Desire to prove scientific merit to the community • Allure to fabricate results
Case Study: Advanced Cell Technologies • Advanced Cell Technologies (ACT) announces that they are the first to report successful cloning of a HESC in Journal of Regenerative Medicine • Attempted to clone HESC using different techniques with varied results • Failed attempts to replicate alleged results by other scientists
Case Study: Advanced Cell Technologies (cont.) • Resulted in ban on human cloning by House of Representatives • Undermined credibility of scientific community • Adversely affected public opinion http://www.sciencemuseum.org.uk/antenna/stemcelldebate/images/mouseembryo.jpg
HESC Viewpoints: Politicians • Goals • Improve welfare of constituents they serve • Reduce healthcare costs • Dilemmas • Individual and/or political party beliefs fundamentally agree/disagree with HESC research direction • Influence of lobbyists and supporters
HESC Viewpoints: Politicians (cont.) • Supreme Court Decision (August 2010) • Los Angeles Lieutenant Governor Race (2006)
HESC Viewpoints: Religious Leaders • Goals • Fulfill respective deity’s will • Help society to live according to pre-determined morals/rules • Dilemmas • Many religious leaders concerned about welfare of followers • HESC research viewed in same light as abortion • Crossroads with scientific discoveries
HESC Viewpoints: Religious Leaders (cont.) • Anti-HESC Research http://www.stmatthewsnj.org/blog/wp-content/uploads/2006/08/Picture%202.png
HESC Viewpoints: Religious Leaders • Pro-HESC Research http://anonymouspond.com/wp-content/uploads/2009/03/stem-cell-cartoon.jpg
$174 Billion Amount of money spent on diabetes-related costs in 2007
100,000 Number of people in the US who die annually from Alzheimer’s disease
$500 Million - 2 Billion Average cost of drug discovery and development for a pharmaceutical company
Conclusion • Regardless of the stance, lives need saving and costs to society must be reduced • Stem cell research, no matter its source, needs to occur in an ethical manner that does not endanger any involved parties