Abstract:
:Membrane repair is essential for cell and organism survival. Exocytosis and endocytosis facilitate membrane repair in small wounds within a single cell; however, it remains unclear how large wounds in the plasma membrane are repaired in metazoans. Here, we show that wounding triggers rapid transcriptional upregulation and dynamic recruitment of the fusogen EFF-1 to the wound site in C. elegans epidermal cells. EFF-1 recruitment at the wounded membrane depends on the actin cytoskeleton and is important for membrane repair. We identified syntaxin-2 (SYX-2) as an essential regulator of EFF-1 recruitment. SYX-2 interacts with the C terminus of EFF-1 to promote its recruitment, facilitating both endoplasmic and exoplasmic membrane repair. Furthermore, we show that SYX-2-EFF-1 repair machinery acts downstream of the ESCRT III signal. Together, our findings identify a key pathway underlying membrane repair and provide insights into tissue repair and regenerative medicine after injury.
journal_name
Dev Celljournal_title
Developmental cellauthors
Meng X,Yang Q,Yu X,Zhou J,Ren X,Zhou Y,Xu Sdoi
10.1016/j.devcel.2020.06.027subject
Has Abstractpub_date
2020-09-14 00:00:00pages
624-638.e5issue
5eissn
1534-5807issn
1878-1551pii
S1534-5807(20)30506-2journal_volume
54pub_type
杂志文章abstract::During development, primordial germ cells (PGCs) navigate a complex journey to generate the germline. In a recent paper in Nature Cell Biology, Nance and colleagues (Abdu et al., 2016) have discovered an unexpected step along the way: PGCs get cut in half by endodermal cells. ...
journal_title:Developmental cell
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journal_title:Developmental cell
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