What does this research mean for the field?

Expression of SV40 large T antigen restores the proliferative capacity of terminally differentiated neonatal rat myocardial cells without causing the loss of their specific differentiated functions. Novelty: ClaimNovelty.NOVEL_FINDING. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

This research aims to determine whether SV40 large T antigen can restore proliferative capacity in terminally differentiated neonatal rat myocardial cells.

December 1, 1988Journal of Biological ChemistryOpen Access

Terminally differentiated neonatal rat myocardial cells proliferate and maintain specific differentiated functions following expression of SV40 large T antigen.

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Why the study?

Does the expression of SV40 large T antigen restore the proliferative capacity of terminally differentiated neonatal rat myocardial cells?

Key Points

This research aims to determine whether SV40 large T antigen can restore proliferative capacity in terminally differentiated neonatal rat myocardial cells.
Used a neonatal rat myocardial cell model to test the effects of SV40 large T antigen.
Infected cells with a replication-defective recombinant human adenovirus containing SV40 early T antigen insert.
Measured T antigen expression and observed cell proliferation and differentiated properties.
Over 85-90% of cells showed positive T antigen staining 24-48 hours post-infection.
Proliferation of myocardial cells occurred without losing key differentiated functions.
Cells maintained myosin light chain expression, organized myofibrils, spontaneous contractile activity, and responses to adrenergic agonists.

Structured PICO

Does the expression of SV40 large T antigen restore the proliferative capacity of terminally differentiated neonatal rat myocardial cells?

Population

Terminally differentiated neonatal rat myocardial cells

Intervention

Expression of SV40 large T antigen via a replication-defective recombinant human adenovirus

Outcome

Proliferative capacity and maintenance of differentiated functions (myosin light chain expression, assembly into organized myofibrils, spontaneous contractile activity, and chronotropic response to adrenergic agonists)surrogate

Expression of SV40 large T antigen via recombinant adenovirus restores proliferative capacity in terminally differentiated neonatal rat myocardial cells while maintaining differentiated functions.

Discussion

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Implication

Facilitates in vitro expansion of differentiated cardiomyocytes; leaves open translation to adult human myocardium.

Cite This Study

Sen et al. (1988) studied this question.

synapsesocial.com/papers/6a17ce8d4f2b3115b0130896 https://doi.org/10.1016/s0021-9258(18)37400-3

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Terminally differentiated neonatal rat myocardial cells proliferate and maintain specific differentiated functions following expression of SV40 large T antigen.

Key Points

Structured PICO

Discussion

Implication

Cite This Study

Terminally differentiated neonatal rat myocardial cells proliferate and maintain specific differentiated functions following expression of SV40 large T antigen.

Key Points

Structured PICO

Discussion

Implication

Cite This Study

Also Consider

Also Consider