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Did you know that tissues can be measured by flow cytometry? Flow cytometry is the measurement of cellular processes at the whole-cell level. This definition is useful because it includes not only flow cytometry, but any technique that measures at the level of the whole cell. Microscopy, for instance, is a great example of cytometry. But, what can be measured by flow cytometry? For one, tissues with lots of cells. When flow cytometry is practiced, the cells are broken up. Therefore, any cellular interactions within the sample are also broken up. This includes tissues, cell-to-cell contacts in tissues, and virtually any information about the microenvironment. As we continue to discover, the microenvironment can play a dramatic role in cell development, influencing how cells grow and change. This article will discuss how to analyze tissues and microenvironments by flow cytometry.

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I am still convinced that my first cell sorter was possessed. The number of issues that I had with the system remains hard for me to believe, even after all these years.
It had been purchased, in part, from one vendor because the sales rep for a competitor was nowhere to be found. At that time, I admit I wasn’t overly diligent in my research process. Since then, I’ve pinpointed some critical questions that need to be answered before purchasing a new instrument.
At the end of the process, a shiny new instrument will arrive at your facility. Make sure you find time to do a shakedown and validate the system. This is the time to get to know it better, identify quirks and potential issues, and develop training and QC programs. Once your shakedown is complete, you can start adding users and encouraging feedback on the system.

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