alexa A 14-mer peptide from HSP70 protein is the critical epitope which enhances NK activity against tumor cells in vivo.
Chemistry

Chemistry

Medicinal Chemistry

Author(s): Zhang H, Liu R, Huang W

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Abstract Heat shock protein 70 (Hsp70) has been found to play key roles in tumor immunity due its chaperone function of binding antigenic peptides. Here we report it can also stimulate NK cells in vivo, which is another role in Hsp70s' anti-tumor response. Injecting Hsp70 into mice increased splenic NK cell populations, which may be reason for anti-tumor effect of Hsp70. The Hsp70 14-mer peptide (aa450-463, TRD) was identified as the critical epitope for this stimulatory activity. It was the murine Hsp70 14-mer peptide TRD instead of the corresponding human Hsp70 14-mer peptide TKD that functioned in the mouse experimental model. This article was published in Immunol Invest and referenced in Medicinal Chemistry

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