A peptide vaccine is any peptide which serves to immunize an organism against a pathogen. Peptide vaccine are often synthetic and mimic naturally occurring proteins from pathogens. In addition to infectious pathogens, peptide vaccines can be utilized as therapeutic cancer vaccines, where peptides from tumor associated antigens are used to induce effective anti-tumor T cell response. Synthetic long peptides (SLP) have shown promising successful results. 
- "Synthetic peptide vaccines". World Health Organization. Retrieved 24 July 2015.
- Melief, Cornelis J.M.; van der Burg, Sjoerd H. (May 2008). "Immunotherapy of established (pre)malignant disease by synthetic long peptide vaccines". Nature Reviews Cancer. 8 (5): 351–360. doi:10.1038/nrc2373. ISSN 1474-175X. PMID 18418403.
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