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jws-dvdy.20972.avi69634KSupplementary Movie 1: Macrophages associate with collagen fibers.Live image of mammary gland from 5 week-old CSF1-R-eGFP female over a 34-minute period, with a z-series spanning 4 μm (in 2 μm steps) collected every 2 minutes. Organization of the SHG fibers (white pseudocolor) suggests a terminal end bud is in the picture. However we have been unable to visualize the TEB with a counter stain. Macrophages (green pseudocolor) can be seen moving along and circling the fibers. The movie was compiled using Voxx2 software and the field of view spans 271 μm in the X and Y-axes.

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