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tag lost colony cell molecular biology ecology developmental biology

Lost Colonies
Anna Azvolinsky | Oct 1, 2015 | 10+ min read
Next-generation sequencing has identified scores of new microorganisms, but getting even abundant bacterial species to grow in the lab has proven challenging.
Stem cells for brain cancer
Peter B. Dirks | Apr 1, 2006 | 3 min read
FEATUREThe Ecology of Tumors Stem cells for brain cancer BY PETER B. DIRKSNeural stem cell biology took off in 1992 when Brent Reynolds and Samuel Weiss, working at the University of Calgary, discovered that culturing mammalian brain cells in serum-free conditions (in EGF and bFGF), yielded clonally derived colonies of undifferentiated neural cells (neurospheres). This culture system demonstrated that cells within these colonies showed cardinal pr
Sensory Biology Around the Animal Kingdom
The Scientist | Sep 1, 2016 | 10+ min read
From detecting gravity and the Earth’s magnetic field to feeling heat and the movement of water around them, animals can do more than just see, smell, touch, taste, and hear.
Those We Lost in 2019
Ashley Yeager | Dec 30, 2019 | 6 min read
The scientific community said goodbye to Sydney Brenner, Paul Greengard, Patricia Bath, and a number of other leading researchers this year.
Playing Protein Hide and Seek
Mignon Fogarty | Apr 11, 2004 | 6 min read
LIGHTING THEIR LOCATIONS:© 2002 Cold Spring Harbor PressImmunolocalization of epitope-tagged proteins. (A-E) represent cells containing HAT-tagged proteins stained with the DNA dye, DAPI, and a monoclonal antibody against hemagluttinin, α-HA. At right the images are merged. (F-J) indicates cells carrying V5 tagged proteins. The bar equals 2 μm.Aliens sifting through the remains of a lost human civilization might puzzle over the function of a ladle. But if found in a room associate
Surpassing the Law of Averages
Jeffrey M. Perkel | Sep 1, 2009 | 7 min read
By Jeffrey M. Perkel Surpassing the Law of Averages How to expose the behaviors of genes, RNA, proteins, and metabolites in single cells. By necessity or convenience, almost everything we know about biochemistry and molecular biology derives from bulk behavior: From gene regulation to Michaelis-Menten kinetics, we understand biology in terms of what the “average” cell in a population does. But, as Jonathan Weissman of the University of Califo
An underwater photo of the solitary tunicate Polycarpa mytiligera growing on a coral in the Red Sea
When Severed, This Solitary Tunicate Regrows as Three New Animals
Amanda Heidt | May 13, 2021 | 4 min read
While regeneration has long been the domain of colonial tunicates, a solitary species of sea squirt was able to regenerate into multiple, fully functional individuals within a month of being cut up.
colonies of mold growing on a Petri dish
Fungi Squeezed Through Microchannels Offer Clues to Cell Growth
Catherine Offord | Jun 1, 2021 | 3 min read
A study finds that fast-growing species are stymied by narrow gaps, while slower-growing species can pass through and continue extending.
Leukemia and Cancer Stem Cells
Irving Weissman and Michael Clarke | Apr 1, 2006 | 4 min read
FEATUREThe Ecology of Tumors Leukemia and Cancer Stem Cells BY IRVING WEISSMAN AND MICHAEL CLARKECancers and normal tissue stem cells have much in common: Both have self-renewal capacity, and both develop into differentiated progeny. But do true cancer stem cells exist? We believe that they do and that this realization will have a major impact on the understanding and treatment of cancers. Putative cancer stem cells can be recognized by three attr
Woods Hole Lab Faces Uncertain Future
Elizabeth Pennisi | Aug 7, 1988 | 10 min read
Celebrating its centennial, the Marine Biological Laboratory adapts to a new era in which money talks as loudly as science WOODS HOLE, MASS.—When Harlyn 0. Halvorson, the new director of the Marine Biological Laboratory in Woods Hole, blows out the candles for his institution’s 100th birthday this summer, no one will have to ask what he wished for. The laboratory needs more money, more room, and more molecular biology if it is to remain in the forefront of scientific research durin

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