Spatiotemporal Expression of Anticoagulation Factorin Freshwater Leeches
Research article published in Int J Mol Sci (2019)
Abstract
Antistasin, which was originally discovered in the salivary glands of the Mexican leech Haementeria officinalis, was newly isolated from Helobdella austinensis. To confirm the temporal expression of antistasin during embryogenesis, we carried out semi-quantitative RT-PCR. Hau-antistasin1 was uniquely expressed at stage 4 of the cleavage and was strongly expressed in the late stages of organogenesis, as were other antistasin members. In order to confirm the spatial expression of antistasin, we performed fluorescence in situ hybridization in the late stages of organogenesis. The expression of each antistasin in the proboscis showed a similar pattern and varied in expression in the body. In addition, the spatial expression of antistasin orthologs in different leeches showed the possibility of different function across leech species. Hau-antistasin1 was expressed in the same region as hedgehog, which is a known mediator of signal transduction pathway. Hau-antistasin1 is probably a downstream target of Hedgehog signaling, involved in segment polarity signal pathway.
Abstract sourced from PubMed (NCBI) for the cited record. See the original publication for the authoritative version.
Summary
, which was originally discovered in the salivary glands of the Mexican leech, was newly isolated from.
Why This Matters for Hirudotherapy
This study examined the spatiotemporal expression of antistasin—a factor originally discovered in the salivary glands of the Mexican leech Haementeria officinalis—newly isolated from Helobdella austinensis, using semi-quantitative RT-PCR and fluorescence in situ hybridization during embryogenesis. Antistasin members were expressed in the proboscis and varied across body regions during late organogenesis, and Hau-antistasin1 expression overlapped with hedgehog, suggesting a possible role in segment polarity signaling during development. The study is relevant to ASH's domain in that it investigates a leech salivary gland factor, though it does not assess anticoagulant activity or therapeutic applications directly. The work is developmental biology focused on gene regulation rather than secretome function or hirudotherapy.
Citation
Spatiotemporal Expression of Anticoagulation Factorin Freshwater Leeches.
Kwak HJ et al. · Int J Mol Sci, 2019
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