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. 2011 Mar;4(2):268–276. doi: 10.1242/dmm.002998

Fig. 4.

Fig. 4.

The SeAP transgene is expressed in the endocrine lineage the embryonic pancreas of BAC NEUROG3-SeAP/EGFP transgenic mice. (A,B) Enzymatic SeAP activity (purple) was colocalized with immunohistochemical staining of endogenous neurogenin-3 (brown, A) in E14.5 fetal pancreases or ductal marker DBA lectin (brown, B) in E18.5 fetal pancreases. Scale bar: 50 μm. (C) Pancreases were harvested from E12.5 embryos and placed in culture at day 1. At 24-hour intervals, SeAP activity in the media was assayed [reported as relative light units (RLUs)], and media was replaced. The solid line indicates media cultured with transgenic pancreases; the dashed line indicates media cultured with non-transgenic pancreases. Data represent mean ± s.e.m. from six pancreases in each group.