What assay can I use to test for antigen presentation?

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TheGrad
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What assay can I use to test for antigen presentation?

Dear all,
I am testing BM-DCs from mice that are on a mixed genetic background (B6/129sv).
I know that they have  maturation and some functional defects (based on a MHCII-mismatched assay).

However I would like to test their ability to present antigen..

Can I use OT-II, and OT-I T cells? I did not think it was a good idea, since these mice are on a pure B6 background, and the assay could be compromised by my mixed genotypes...

Are there any assays that do not require the use of T cells at all, like using fluorescent antigen for example?

Any advice and input is much appreciated.

Thanks!