Toward Personalized Peptide-Based Cancer Nanovaccines: A Facile and Versatile Synthetic Approach.
Toward Personalized Peptide-Based Cancer Nanovaccines: A Facile and Versatile Synthetic Approach.
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DOI：
10.1021/acs.bioconjchem.7b00502
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发表时间：
2017-11-15
影响因子：
4.7
通讯作者：
Ferrara KW
中科院分区：
文献类型：
--
作者：
Kakwere H;Ingham ES;Allen R;Mahakian LM;Tam SM;Zhang H;Silvestrini MT;Lewis JS;Ferrara KW
Personalized cancer vaccines (PCVs) are receiving attention as an avenue for cancer immunotherapy. PCVs employ immunogenic peptide epitopes capable of stimulating the immune system to destroy cancer cells with great specificity. Challenges associated with effective delivery of these peptides include poor solubility of hydrophobic sequences, rapid clearance, and poor immunogenicity, among others. The incorporation of peptides into nanoparticles has the potential to overcome these challenges, but the broad range of functionalities found in amino acids presents a challenge to conjugation due to possible interferences and lack of reaction specificity. Herein, a facile and versatile approach to generating nanosized PCVs under mild nonstringent conditions is reported. Following a simple two-step semibatch synthetic approach, amphiphilic hyperbranched polymer–peptide conjugates were prepared by the conjugation of melanoma antigen peptides, either TRP2 (hydrophobic) or MUT30 (hydrophilic), to an alkyne functionalized core via strain-promoted azide–alkyne click chemistry. Self-assembly of the amphiphiles gave spherical nanovaccines (by transmission electron microscopy) with sizes in the range of 10–30 nm (by dynamic light scattering). Fluorescently labeled nanovaccines were prepared to investigate the cellular uptake by antigen presenting cells (dendritic cells), and uptake was confirmed by flow cytometry and microscopy. The TRP2 nanovaccine was taken up the most followed by MUT30 nanoparticles and, finally, nanoparticles without peptide. The nanovaccines showed good biocompatibility against B16–F10 cells, yet the TRP2 peptide showed signs of toxicity, possibly due to its hydrophobicity. A test for immunogenicity revealed that the nanovaccines were poorly immunogenic, implying the need for an adjuvant when administered in vivo. Treatment of mice with melanoma tumors showed that in combination with adjuvant, CpG, groups with the peptide nanovaccines slowed tumor growth and improved survival (up to 24 days, TRP2) compared to the untreated group (14 days).
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影响因子：
3.4
作者：
Kakwere, Hamilton;Payne, Richard J.;Perrier, Sebastien
通讯作者：
Perrier, Sebastien
癌症免疫疗法。树突状细胞疫苗增加了黑色素瘤新抗原特异性T细胞的广度和多样性。
DOI：
10.1126/science.aaa3828
发表时间：
2015-05-15
期刊：
Science (New York, N.Y.)
影响因子：
--
作者：
Carreno BM;Magrini V;Becker-Hapak M;Kaabinejadian S;Hundal J;Petti AA;Ly A;Lie WR;Hildebrand WH;Mardis ER;Linette GP
通讯作者：
Linette GP
影响因子：
10
作者：
Bhattacharjee S;Ershov D;Fytianos K;van der Gucht J;Alink GM;Rietjens IM;Marcelis AT;Zuilhof H
通讯作者：
Zuilhof H
影响因子：
4.8
作者：
Diebold, SS;Kursa, P;Zenke, M
通讯作者：
Zenke, M
影响因子：
11.2
作者：
Castle, John C.;Kreiter, Sebastian;Sahin, Ugur
通讯作者：
Sahin, Ugur