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Cell fate determination. When is a determinant a determinant?

S Cohen¹, A A Hyman

¹European Molecular Biology Laboratory, Heidelberg, Germany.

Current Biology : CB

|May 1, 1994

Summary

The Numb protein asymmetrically distributes during cell division in the Drosophila nervous system. This protein may determine the developmental fates of resulting daughter cells.

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Area of Science:

Neuroscience
Developmental Biology
Cell Biology

Background:

The Numb protein is known to be asymmetrically distributed.
This distribution occurs during specific cell divisions within the nervous system of the fruit fly, Drosophila.

Purpose of the Study:

To investigate the potential role of the Numb protein.
To determine if Numb influences the developmental fates of daughter cells produced during asymmetric cell division.

Main Methods:

Observational studies of Numb protein localization during cell division in Drosophila.
Analysis of cell fate determination in daughter cells following asymmetric Numb distribution.

Main Results:

Numb protein exhibits asymmetric distribution during neuroblast divisions.
Evidence suggests a correlation between Numb's asymmetric localization and daughter cell fate determination.

Conclusions:

The asymmetric distribution of Numb protein is implicated in cell fate decisions.
Numb likely plays a crucial role in regulating neuronal development by specifying daughter cell fates.

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