Seeking single cells’ secrets | WPN World People News

“Cells are the most basic form of life; they make up every tissue and organ system in our bodies,” said James Anderson, M.D., Ph.D., director of NIH’s Division of Program Coordination, Planning, and Strategic Initiatives (DPCPSI). “Most cells are healthy, but this can change. They can become cancerous, get infected by viruses, undergo cycles and aging. ”

This human T cell (blue) is under attack by HIV (yellow), the virus that causes AIDS. The virus specifically targets T cells, which play a critical role in the body's immune response against invaders like bacteria and viruses.

Validating and refining already established technologies for studying the biological properties of single cells:

● Modeling how tissue properties of cells emerge during development

● Detecting genetic changes in live animals

● Manipulating cells with submicron precision

● Tracking fat metabolism using millisecond technology

● Detecting the tiniest genetic variation

● Discovering how cells renew themselves and differentiate as they develop

● Profiling gene expression in a cell’s nucleus to identify early protein signatures

● Optimizing “disease-in-a-dish” analysis

Pioneering exceptionally innovative new technologies:

● A genetic imaging tool to label vast numbers of cell lineages

● Microsecond spectroscopy to repetitively assess a single cell in a living organism

● A high definition cell “printer” based on precise fluid mechanics, robotics and microscopy

● Optically guided technology to identify cell types that give rise to different tissues

● Light-induced cellular gene changes in a live vertebrate animal

● Gene expression sensors that report out changes among cells in living tissue

● Real-time, micro-level scans tracking a transplanted cell in a live mouse

● Spectrometry so sensitive that even subcellular components can be chemically analyzed

The single cell component to already active projects:

● How a key immune cell can be either an acute defender or a memory cell

● How a mouth bacterium can cause minor irritation or aggressive periodontal disease

● Tracking environmentally triggered changes in a gene in a formative human cell

● Characterizing how micro-level gene expression changes in a cancer cell suppress tumors

● How a gene regulator exerts effects on different classes of target genes

● Genetic mechanisms by which intestinal lining cells are regenerated

● Targeted genetic alteration of a key cellular process by which genes are switched off

● Characterizing the workings of immune cells that target leukemia

● Genetics of a disease-in-a-dish disease model derived from a type of heart cell

Source: U.S. National Institutes of Health