Lesson plan
OvaScience
OvaScience was a publicly traded biotechnology company, focused on female infertility. It was founded in 2011 by Michelle Dipp, Richard Aldrich, Christoph Westphal, Jonathan Tilly, and David Sinclair and is based on scientific work done by Tilly concerning mammalian oogonial stem cells (OSCs) and work on mitochondria by Sinclair. Tilly's work was expectedly met with skepticism, as it warranted a paradigm-shift. The existence and functional potential of mammalian OSCs remains highly controversial, and the prevailing scientific consensus has not accepted Tilly's proposed paradigm shift. While some allied research groups have reported isolating OSCs using cell-sorting techniques—often relying on the DDX4 protein as a surface marker—independent reproduction of the generation of functional oocytes has been heavily contested. Independent validation studies have shown that cells isolated using these methods do not actually express DDX4 on their surface and lack true germline identity, suggesting that the initial isolation protocols were based on methodological artifacts.
Article summary
OvaScience was a publicly traded biotechnology company, focused on female infertility. It was founded in 2011 by Michelle Dipp, Richard Aldrich, Christoph Westphal, Jonathan Tilly, and David Sinclair and is based on scientific work done by Tilly concerning mammalian oogonial stem cells (OSCs) and work on mitochondria by Sinclair. Tilly's work was expectedly met with skepticism, as it warranted a paradigm-shift. The existence and functional potential of mammalian OSCs remains highly controversial, and the prevailing scientific consensus has not accepted Tilly's proposed paradigm shift. While some allied research groups have reported isolating OSCs using cell-sorting techniques—often relying on the DDX4 protein as a surface marker—independent reproduction of the generation of functional oocytes has been heavily contested. Independent validation studies have shown that cells isolated using these methods do not actually express DDX4 on their surface and lack true germline identity, suggesting that the initial isolation protocols were based on methodological artifacts.
Key claims
- date of foundation: 2011 — source: Wikipedia · confidence 0.95
Discussion questions
- Summarise the article in your own words. Which single claim would you verify first, and why?
- The record states that the date of foundation is "2011". What evidence would count against this claim?
- Which claim in this article is most likely to be revised as the sources update? How would you check its current status?
- If two sources disagreed about one of these facts, what would you need in order to trust one over the other?
Bibliography
- Wikipedia https://en.wikipedia.org/w/index.php?oldid=1367107407
Key claims and bibliography are generated from the same tracked claims and sources as the article page.