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Ishana92 t1_ixm2pue wrote

Reply to comment by _googlefanatic_ in If freezing tissue generally damages the cells, how are we able to freeze human eggs and embryos for birthing later? by badblackguy

Its because of complexity. Lets say you freeze a kidney then you thaw it and try to reassimilate it. Cells thst died will severely disrupt its function. In many cases replacing those cells is a slow and gradual process and not something that can be done quickly (whereas in cell culture you usually only have one cell type and they are functionally all the same).

Then you have the tissue and system response. Cells that die during freezing die messy. They burst and that releases toxins into your blood stream. Then immune cells come via blood and start inflammation which further damages the tissue. In the end you have a string of failures.

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GreatBayTemple t1_ixne205 wrote

So you need nanobots that can connect to cell tissue and each other, mimic the cell structure and send signals to neighboring cells to function as usual while cells are cultured into place on the organ? Like a special film?

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Ishana92 t1_ixnjkrq wrote

If you had all that then you wouldn't need to freeze anything, just grow it from scratch. This is the basis of 3d organ printing.

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