ArticleDevelopmental dynamics : an official publication of the American Association of Anatomists2021
Mechanisms of TGFß in prostaglandin synthesis and sperm guidance in Caenorhabditis elegans.
Article in Developmental dynamics : an official publication of the American Association of Anatomists, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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2 citing papers in PubMed, 3 citations in OpenAlex.
- The N terminus-only (trans) function of the adhesion G protein-coupled receptor latrophilin-1 controls multiple processes in reproduction of Caenorhabditis elegans.G3 (Bethesda, Md.) · 2024Article
- Sperm-Guiding Unconventional Prostaglandins inMetabolites · 2021Review
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5 authors at 1 institution in 1 country.
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Abstract
backgroundThe transparent epidermis of Caenorhabditis elegans makes it an attractive model to study sperm motility and migration within an intact reproductive tract. C elegans synthesize specific F-series prostaglandins (PGFs) that are important for guiding sperm toward the spermatheca. These PGFs are synthesized from polyunsaturated fatty acid (PUFA) precursors, such as arachidonic acid (AA), via a novel pathway, independent of the classical cyclooxygenases (Cox) responsible for most PG synthesis. While the enzyme(s) responsible for PG synthesis has yet to be identified, the DAF-7 TGFß pathway has been implicated in modulating PG levels and sperm guidance.
resultsWe find that the reduced PGF levels in daf-1 type I receptor mutants are responsible for the sperm guidance defect. The lower level of PGs in daf-1 mutants is due in part to the inaccessibility of AA. Finally, lipid analysis and assessment of sperm guidance in daf-1;daf-3 double mutants suggest DAF-3 suppresses PG production and sperm accumulation at the spermatheca. Our data suggest that DAF-3 functions in the nervous system, and possibly the germline, to affect sperm guidance.
conclusionThe C elegans TGFß pathway regulates many pathways to modulate PG metabolism and sperm guidance. These pathways likely function in the nervous system and possibly the germline.
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