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What happen to my NIH3T3 cells? - (Mar/22/2008 )

Hello everyone,
The NIH3T3 were transfected with a gene with unknown function. The transfected cells have strange phenotype. But a small portion of non-transfected cells also have this phenotype. What might be affected in the transfectants?

-WHR-

Most likely it was due to toxicity. Your cell density is on the lower side, therefore the reagent-to-cell ratio is high that can cause toxicity. Probably most will not survive after 24-48 hrs. Try increasing the cell number 2-3 fold, it wont hurt.

-genehunter-1-

QUOTE (genehunter-1 @ Mar 22 2008, 10:49 AM)
Most likely it was due to toxicity. Your cell density is on the lower side, therefore the reagent-to-cell ratio is high that can cause toxicity. Probably most will not survive after 24-48 hrs. Try increasing the cell number 2-3 fold, it wont hurt.


Thank you genehunter-1,
But the transgene was delivered by lentivirus. Shown in the pictures is one of the isolated clones.

-WHR-

Sometimes you get sick looking cells if you waited for too long before passing. If so, it will recover after 2-3 passes.

NIH3T3 cells seem to be more sensitive to that than other cell types.

-genehunter-1-

QUOTE (genehunter-1 @ Mar 24 2008, 06:43 AM)
Sometimes you get sick looking cells if you waited for too long before passing. If so, it will recover after 2-3 passes.

NIH3T3 cells seem to be more sensitive to that than other cell types.


I agree. But after several passages, the cells still appeard like that. And they grow very slowly.

-WHR-

Are they looking normal when you passed them? If both transfected or non-transfected (without any treatment) are looking the same, it may be possible if your cells are not healthy. You can try to thaw a new stock ...

-Franz K.-

QUOTE (Franz K. @ Mar 25 2008, 04:15 AM)
Are they looking normal when you passed them? If both transfected or non-transfected (without any treatment) are looking the same, it may be possible if your cells are not healthy. You can try to thaw a new stock ...


Franz K, thank for your advice.
I think the transgene likely disturb the formation of lamelipodia.

-WHR-