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Original Article: Research

Expression of functional folate receptors in multiple myeloma

, , , , , , , , & show all
Pages 2982-2989 | Received 27 Nov 2017, Accepted 22 Feb 2018, Published online: 04 Apr 2018
 

Abstract

Receptor-targeted delivery of imaging and therapeutic agents has emerged as an attractive strategy to diagnosis and treat many diseases including cancer. One of the most well-studied receptors for targeted therapies is the folate receptor (FR) family. FR-α and FR-β are present on many cancers with little expression in normal tissues; leading to the testing of at least six folate-targeted drugs in human clinical trials for various cancers. However, the expression of FR in blood cancers has not been fully explored with no reports of FR expression in myelomas. Herein, we report the expression of both FR-α and FR-β on CD138 + plasma cells isolated from patients with multiple myeloma. In addition, all-trans retinoic acid was shown to increase the levels of FR-α and FR-β in two myeloma cell lines. Altogether, this data suggests that folate-targeted therapies for the treatment of multiple myeloma warrants further investigation.

Acknowledgements

The work was in part supported by funds from Harith Foundation and Suhith Wickrema Memorial Cancer Fund. We thank Sriram Sundaravel for technical assistance and the personnel in the Flow Cytometry Core facility.

Potential conflict of interest

Disclosure forms provided by the authors are available with the full text of this article online at https://doi.org/10.1080/10428194.2018.1453066.

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