Lasp1 Expression Is Implicated in Embryonic Development of Zebrafish

Author:

Grossi IlariaORCID,Schiavone Marco,Cannone Elena,Grejdan Oana AndreeaORCID,Tobia ChiaraORCID,Bonomini FrancescaORCID,Rezzani RitaORCID,Salvi AlessandroORCID,De Petro GiuseppinaORCID

Abstract

The LIM and SH3 domain protein 1 (LASP1) was originally identified in metastatic breast cancer and mainly characterized as a cytoskeleton protein overexpressed in various cancer types. At present, little is known about LASP1 expression in physiological conditions, and its function during embryonic development has not been elucidated. Here, we focused on Lasp1 and embryonic development, choosing zebrafish as a vertebrate model. For the first time, we identified and determined the expression of Lasp1 protein at various stages of development, at 48 and 72 h post-fertilization (hpf), at 6 days pf and in different organs of zebrafish adults by Western blotting, 3D light-sheet microscopy and fluorescent immunohistochemistry. Further, we showed that specific lasp1 morpholino (MO) led to (i) abnormal morphants with alterations in several organs, (ii) effective knockdown of endogenous Lasp1 protein and (iii) an increase in lasp1 mRNA, as detected by ddPCR. The co-injection of lasp1 mRNA with lasp1 MO partially rescued morphant phenotypes, thus confirming the specificity of the MO oligonucleotide-induced defects. We also detected an increase in apoptosis following lasp1 MO treatment. Our results suggest a significant role for Lasp1 in embryonic development, highlighting zebrafish as a vertebrate model suitable for studying Lasp1 function in developmental biology and organogenesis.

Funder

CIB

Lega Italiana Lotta ai Tumori

University of Brescia

Publisher

MDPI AG

Subject

Genetics (clinical),Genetics

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