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The Caenorhabditis elegans homolog of human copper chaperone Atox1, CUC-1, aids in distal tip cell migration

Artikel i vetenskaplig tidskrift
Författare X. L. Zhang
S. Blockhuys
Ranjan Devkota
Marc Pilon
P. Wittung-Stafshede
Publicerad i Biometals
Nummer/häfte 33
Sidor 147-157
ISSN 0966-0844
Publiceringsår 2020
Publicerad vid Institutionen för kemi och molekylärbiologi
Sidor 147-157
Språk en
Länkar dx.doi.org/10.1007/s10534-020-00239...
Ämnesord Cell migration, Distal tip cell migration, Atox1, CUC-1, Caenorhabditis, elegans, Copper transport, identification, pluripotency, plays, Biochemistry & Molecular Biology
Ämneskategorier Biokemi och molekylärbiologi

Sammanfattning

Cell migration is a fundamental biological process involved in for example embryonic development, immune system and wound healing. Cell migration is also a key step in cancer metastasis and the human copper chaperone Atox1 was recently found to facilitate this process in breast cancer cells. To explore the role of the copper chaperone in other cell migration processes, we here investigated the putative involvement of an Atox1 homolog in Caenorhabditis elegans, CUC-1, in distal tip cell migration, which is a key process during the development of the C. elegans gonad. Using knock-out worms, in which the cuc-1 gene was removed by CRISPR-Cas9 technology, we probed life span, brood size, as well as distal tip cell migration in the absence or presence of supplemented copper. Upon scoring of gonads, we found that cuc-1 knock-out, but not wild-type, worms exhibited distal tip cell migration defects in approximately 10-15% of animals and, had a significantly reduced brood size. Importantly, the distal tip cell migration defect was rescued by a wild-type cuc-1 transgene provided to cuc-1 knock-out worms. The results obtained here for C. elegans CUC-1 imply that Atox1 homologs, in addition to their well-known cytoplasmic copper transport, may contribute to developmental cell migration processes.

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