ZFIN Image: Siddam et al., 2018, Fig. 5

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Figure Caption

Fig. 5

Celf1 deficiency in mouse and fish causes defects in fiber cell morphology.

(A) RT-qPCR analysis confirms significant Actn2 down-regulation in Celf1^cKO/lacZKI lenses compared to control. (B) RNA immunoprecipitation (RIP) identifies Actn2 as an enriched transcript in Celf1-pulldown in P15 wild-type mouse lens. (C) Cross-linked RNA immunoprecipitation (CLIP) shows Sptb transcripts to be enriched in Celf1-pulldown in wild-type mouse lens. (D) RT-qPCR analysis shows that the high-abundant Sptb isoform (isoform 1 (ENSMUST00000021458)) is reduced, while the low-abundant Sptb isoform (isoform 2 (ENSMUST00000166101)) is abnormally elevated in Celf1^cKO/lacZKI lenses. (E, E’) In mouse, phalloidin staining of lens tissue sections (stage P0) shows uniform F-actin deposition along the fiber cell margins in control, while Celf1^cKO/lacZKI lenses exhibit abnormal pattern of F-actin (asterisk). (F, F’) In zebrafish, while control lens exhibits normal F-actin deposition, celf1^KD lens (stage 4dpf) exhibits abnormal F-actin pattern (asterisk) in fiber cells. (G-H’) In mouse, scanning electron microscopy analysis of cortical and nuclear fiber cells shows disrupted cell organization (asterisk) in Celf1^cKO/lacZKI lenses (stage P15). Scale bar in D’ is 75 μm and G’ is 2.5μM.

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Acknowledgments

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