An analysis (Mullighan et al, Science 322: 1377, 2008) of gene copy number changes in Acute Lymphoblastic Leukemia (ALL) samples at time of diagnosis and at time of relapse may change the way we think about cancer relapse. It is not yet clear how broadly these findings apply as this study was focused on changes in gene copy number (not other mutations), and not on a more heterogeneous solid tumor, but it already raises new questions about the biomarkers of tumors and treatment of relapse.
Past studies on diverse cancers, including melanoma, have indicated that only rare human cancer cells (0.1–0.0001%) form tumors when transplanted into non-obese diabetic/severe combined immunodeficiency (NOD/SCID) mice.
Producing proteins more cheaply has long been on the horizon, with transgenic goats and other alternatives to mammalian cell culture. Now, a clinical study has begun with insulin produced in the oil storage bodies of safflower seeds. This sequestration in the seed organelles makes the proteins easier to purify from the plants. It is estimated that 3 commercial farms could supply all the insulin. SemBioSys Genetics says it is the largest production of proteins in plants yet.
The Economy: The last few months have been dramatic, as housing prices declined and homes were foreclosed or walked away from. Wild gyrations in the stock market. Big brokerage firms and banks have failed or been swallowed. The giant hedge fund industry has lost $180 billion in 3 months, the Federal Government is spending $700 billion to try to stop the panic, and everyone is lobbying for their piece of the taxpayer dollars. What does it all mean for biotech?