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Burns KE, Hensley H, Robinson MK, Thevenin D
Therapeutic Efficacy of a Family of pHLIP-MMAF Conjugates in Cancer Cells and Mouse Models
Mol Pharm (2017) 14:415-422.
The targeting of therapeutics specifically to diseased tissue is crucial for the development of successful cancer treatments. The approach here is based on the pH(low) insertion peptide (pHLIP) for the delivery of a potent mitotic inhibitor monomethyl auristatin F (MMAF). We investigated six pHLIP variants conjugated to MMAF to compare their efficacy in vitro against cultured cancer cells. While all pHLIP-MMAF conjugates exhibit potent pH- and concentration-dependent killing, their cytotoxicity profiles are remarkably different. We also show that the lead conjugate exhibits significant therapeutic efficacy in mouse models without overt toxicities. This study confirms pHLIP-monomethyl auristatin conjugates as possible new therapeutic options for cancer treatment and supports their further development.
Publication Date: 2017-02-06.
PMCID: PMC5293657
Last updated on Tuesday, September 04, 2018