Chicken hematopoietic cells transformed by seven strains of defective avian leukemia viruses display three distinct phenotypes of differentiation
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View abstract on PubMed
Summary
This summary is machine-generated.Avian leukemia viruses induce distinct cell differentiation phenotypes in chickens. These findings suggest the existence of three novel viral-transforming genes: erb, mac, and myb.
Area Of Science
- Molecular Biology
- Virology
- Cell Biology
Background
- Avian leukemia viruses (ALVs) are known to cause various cancers in chickens.
- Understanding the transformation mechanisms of ALVs is crucial for deciphering oncogenesis.
Purpose Of The Study
- To characterize the differentiation phenotypes of chicken hematopoietic cells transformed by different ALV strains.
- To identify potential novel viral-transforming genes responsible for these phenotypes.
Main Methods
- Chicken hematopoietic cells were transformed in vitro and in vivo using seven replication-defective ALV strains.
- Expression of erythroid and myeloid differentiation parameters, including cell surface antigens, was analyzed using specific antisera.
Main Results
- Three distinct differentiation phenotypes were observed: erythroblast-like (AEV), macrophage-like (MC29, CMII, OK10, MH2), and myeloblast-like (AMV, E26).
- No significant differences were found between in vitro- and in vivo-transformed cells.
- These distinct phenotypes correlate with the action of three putative viral-transforming genes: erb, mac, and myb.
Conclusions
- The study identifies three distinct viral-induced hematopoietic cell differentiation pathways in chickens.
- Evidence supports the existence of three novel viral-transforming genes (erb, mac, myb) associated with these pathways.
- These findings advance the understanding of ALV-induced oncogenesis and viral gene function.
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