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Simple Transgene Overexpression using Scallop Hemocyte Culture Platform Enables Functional Genetic Research in
Jeongwoong Yoon1,2, Taro Tsuda1, Enrico Bortoletto3
1Laboratory of Aquaculture Biology, Graduate School of Agricultural Science, Tohoku University, Sendai, Miyagi, 980-8572, Japan.
Marine Biotechnology (New York, N.Y.)
|June 11, 2025
Summary
Researchers developed a new method for transgene expression in mollusc cells, specifically using Farrer's scallop hemocytes. This breakthrough simplifies studying mollusc molecular biology and genetics.
Area of Science:
- Marine Biology
- Molecular Biology
- Genetics
Background:
- Molluscs are evolutionarily and commercially significant but difficult to study due to maintenance challenges and lack of genetic tools.
- Previous work demonstrated transgene expression in molluscan cells using a viral promoter.
Purpose of the Study:
- To develop a simple, efficient, and rapid platform for transgene expression in molluscan cells.
- To establish a protocol for studying cellular and molecular biology in molluscs.
Main Methods:
- Primary hemocyte culture from Farrer's scallop (Chlamys farreri).
- Evaluation of seven transfection reagents, identifying X-tremeGENE 360 as highly efficient for Chlamys farreri.
- Optimization of culture medium, DNA characteristics, and DNA-transfection reagent ratios.
Main Results:
- A two-step protocol for hemocyte collection, seeding, and incubation with DNA-reagent mixture was established.
- Successful visualization of subcellular localization for four bivalve oncogenes (Cf-Mdm2-like, Cf-c-Myc-like, Cf-Mortalin-like, Cf-Ras-like) tagged with EGFP.
- The platform demonstrated high efficiency in Chlamys farreri hemocyte transfection.
Conclusions:
- The developed hemocyte platform offers an accessible method for molluscan cellular and molecular biology research.
- This platform can be adapted for advanced techniques like live imaging and DNA-protein interaction assays.
- The study significantly enhances the accessibility of mollusc research for the scientific community.
