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When everything is a master regulator, nothing is.

Robert S Krauss1, Michael Kyba2

  • 1Department of Cell, Developmental, and Regenerative Biology, Icahn School of Medicine at Mount Sinai, New York, NY 10029.

Molecular Biology of the Cell
|February 6, 2025
PubMed
Summary
This summary is machine-generated.

The term "master regulator" has become unclear. We propose reserving it for transcription factors that initiate specific cell lineages and drive their transcriptional programs.

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Area of Science:

  • Molecular Biology
  • Developmental Biology
  • Genetics

Background:

  • The term "master regulator" originated in the mid-20th century to describe specific transcription factors controlling cell development.
  • Over time, the usage of "master regulator" has expanded, leading to ambiguity in its definition.
  • This broadened application risks diluting the term's original, precise meaning in scientific literature.

Purpose of the Study:

  • To establish a consensus definition for the term "master regulator".
  • To encourage a more precise and consistent application of the term in scientific research.
  • To stimulate discussion regarding the nomenclature of biological regulatory processes.

Main Methods:

  • Literature review and conceptual analysis of the term "master regulator".
  • Discussion and proposal of specific criteria for defining a "master regulator" transcription factor.
  • Examination of the historical context and evolution of the term's usage.

Main Results:

  • A proposed definition for "master regulator" is presented, focusing on hierarchical position and functional sufficiency.
  • The criteria include being at the apex of a regulatory hierarchy for a cell lineage or state.
  • The criteria also require the factor to be sufficient to drive the characteristic transcriptional program.

Conclusions:

  • The proposed definition aims to restore clarity and precision to the term "master regulator".
  • This refined definition is intended to guide future research and experimentation in developmental and cell biology.
  • The authors hope this work sets a precedent for clarifying terminology in complex biological processes.