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Related Experiment Video

Updated: Jul 13, 2026

The Three-Dimensional Human Skin Reconstruct Model: a Tool to Study Normal Skin and Melanoma Progression

The Three-Dimensional Human Skin Reconstruct Model: a Tool to Study Normal Skin and Melanoma Progression

Published on: August 3, 2011

Bim expression is reduced in human cutaneous melanomas.

Derek L Dai¹, Yemin Wang, Min Liu

¹Department of Dermatology and Skin Science, Jack Bell Research Centre, Vancouver, British Columbia, Canada.

The Journal of Investigative Dermatology

|July 20, 2007

Summary

Bim protein levels decrease during melanoma progression. Reduced Bim expression correlates with poorer survival, suggesting its loss is important in melanoma development.

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Area of Science:

Molecular Biology
Oncology
Cell Death Research

Background:

Bim is a BH3-only protein regulating apoptosis by antagonizing prosurvival Bcl-2 proteins.
Understanding the role of apoptotic regulators in cancer progression is crucial for developing targeted therapies.

Purpose of the Study:

To investigate the role of Bim expression in melanoma progression.
To evaluate the prognostic value of Bim expression in melanoma patients.

Main Methods:

Tissue microarray and immunohistochemistry were used to quantify Bim expression.
Bim levels were analyzed in dysplastic nevi, primary melanomas, and melanoma metastases.
Statistical analyses included chi-squared tests and Cox regression.

Main Results:

Bim expression was significantly reduced in metastatic melanomas compared to dysplastic nevi and primary melanomas.
Reduced Bim expression was associated with poorer 5-year patient survival.
Bim expression did not emerge as an independent prognostic factor.

Conclusions:

Bim loss appears to play a significant role in melanoma progression.
Further research into Bim's function in melanoma is warranted.