FRα Expression in Ovarian Cancer

BIOLOGY

Folate receptor alpha (FRα) is a protein responsible for transporting folate into the cell, which is an essential process for normal cell growth and proliferation. However, overexpression of FRα in tumor cells leads to uncontrolled cell growth and proliferation of the tumor.1

Image adapted from Cheung A, et al. Oncotarget. 2016;7(32):52553–52574.

Testing Considerations

FRα protein expression may be tested in ovarian cancer. FRα IHC status is often defined by staining intensity when considering the percentage of tumor cells.1

Biomarker

FRα Protein Overexpression1

Biomarker Type

Protein

Testing Modality

IHC2
Images are for illustrative purposes only.
Negative
Positive

Biomarker

FRα Protein Overexpression1

Biomarker Type

Protein

Testing Modaility

IHC2
Negative
Positive
Images are for illustrative purposes only.

Relevant Resources

Learn more about FRα expression in ovarian cancer by visiting ExploreFRalpha.com
FRα=folate receptor alpha; gp130=glycoprotein 130; IHC=immunohistochemistry; JAK=janus kinase; STAT3=signal transducer and activator of transcription 3.
References
1. Bax HJ, et al. Br J Cancer. 2022;128(2):342-353. doi:10.1038/s41416-022-02031-x. 2. Images provided by Roche Diagnostics.
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