How Embryonic Stem Cells Develop Into Tissue-specific Cells Demonstrated While it has long been known that embryonic stem cells have the ability to develop into any kind of tissue-specific cells, the exact mechanism as to how this occurs has heretofore not been demonstrated. Now, researchers have succeeded in graphically revealing this process, resolving a long-standing question as to whether the stem cells achieve their development through selective activation or selective repression of genes.
Key Step In The 'Puncture' Mechanism Of Cell Death Revealed Medical researchers have discovered a key step in the mechanism by which cells destroy themselves. In this process, called "apoptosis," certain proteins cause the cell to self-destruct by puncturing its "power plant." How the proteins do this has now been clarified. The discovery is an important step towards the identification of targets for drugs designed to regulate cell death.
Groundbreaking Methodology For Identify Cancerous Cells Recognizing the distinction between healthy and cancerous cells has traditionally been up to the eye of highly-trained cytologists and pathologists. While the majority of the resulting diagnoses are accurate, new technology can enhance the accuracy and alleviate the physical strain on the human observer. Now scientists have developed an automatic method based on vibrational microspectroscopy that identifies the presence of metastatic cancer cells without the need for staining, and without human input.
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