Basic Helix-Loop-Helix Transcription Factor TCF21 Is a Downstream Target of the Male Sex Determining Gene SRY
2011

TCF21 and its Role in Male Sex Determination

publication 10 minutes Evidence: moderate

Author Information

Author(s): Bhandari Ramji K., Sadler-Riggleman Ingrid, Clement Tracy M., Skinner Michael K.

Primary Institution: Washington State University

Hypothesis

SRY interacts with Tcf21 to promote somatic cell differentiation during male gonadal sex determination.

Conclusion

The study demonstrates that TCF21 is a downstream target of SRY and plays an important role in testis differentiation.

Supporting Evidence

  • TCF21 was found to promote an in vitro sex reversal of embryonic ovarian cells.
  • SRY directly binds to the Tcf21 promoter during male sex determination.
  • TCF21 and SRY had similar effects on the gonadal cell transcriptomes.

Takeaway

This study found that a gene called TCF21 helps determine if an embryo becomes a boy by working with another gene called SRY.

Methodology

The study used in vivo and in vitro experiments to analyze the interaction between SRY and TCF21 in rat embryonic testis.

Limitations

The study's findings may be limited by the specific animal model used and the technical challenges of in vivo assays.

Participant Demographics

Rat embryos at various stages of development were used in the study.

Statistical Information

P-Value

p<0.05

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1371/journal.pone.0019935

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