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. 2021 Mar 11;12:627819. doi: 10.3389/fendo.2021.627819

Figure 2.

Figure 2

Mismatch repair status of GEP-NEC organoid lines. Staining of slides from NEC-01010 (P7 and P11), NEC-01013 (P13), and NEC-02002 organoids (P15), as well as the original tumor of NEC-02002, for mismatch repair proteins MLH1, PMS2, MSH2, and MSH6. Note 100% nuclear expression of MHS2 and MSH6 but absence of nuclear staining of MLH1 and PMS2 in both organoids and original tumor of NEC-02002. The brown halo on the cell border is a specific staining caused by residual Geltrex in organoid slides. Scale bar = 100 µm.