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2. Long non-coding RNA-derived peptides are immunogenic and drive a potent anti-tumour response

Author

Barczak, Wojciech, Carr, Simon M., Liu, Geng, Munro, Shonagh, Nicastri, Annalisa, Lee, Lian Ni, Hutchings, Claire, Ternette, Nicola, Klenerman, Paul, Kanapin, Alexander, Samsonova, Anastasia, La Thangue, Nicholas B., Barczak, Wojciech, Carr, Simon M., Liu, Geng, Munro, Shonagh, Nicastri, Annalisa, Lee, Lian Ni, Hutchings, Claire, Ternette, Nicola, Klenerman, Paul, Kanapin, Alexander, Samsonova, Anastasia, and La Thangue, Nicholas B.

Abstract

Protein arginine methyltransferase (PRMT) 5 is over-expressed in a variety of cancers and the master transcription regulator E2F1 is an important methylation target. We have explored the role of PRMT5 and E2F1 in regulating the non-coding genome and report here a striking effect on long non-coding (lnc) RNA gene expression. Moreover, many MHC class I protein-associated peptides were derived from small open reading frames in the lncRNA genes. Pharmacological inhibition of PRMT5 or adjusting E2F1 levels qualitatively altered the repertoire of lncRNA-derived peptide antigens displayed by tumour cells. When presented to the immune system as either ex vivo-loaded dendritic cells or expressed from a viral vector, lncRNA-derived peptides drove a potent antigen-specific CD8 T lymphocyte response, which translated into a significant delay in tumour growth. Thus, lncRNA genes encode immunogenic peptides that can be deployed as a cancer vaccine.

Published
2023

3. Long non-coding RNA-derived peptides are immunogenic and drive a potent anti-tumour response

Author

Afd Biomol.Mass Spect. and Proteomics, Biomolecular Mass Spectrometry and Proteomics, Barczak, Wojciech, Carr, Simon M., Liu, Geng, Munro, Shonagh, Nicastri, Annalisa, Lee, Lian Ni, Hutchings, Claire, Ternette, Nicola, Klenerman, Paul, Kanapin, Alexander, Samsonova, Anastasia, La Thangue, Nicholas B., Afd Biomol.Mass Spect. and Proteomics, Biomolecular Mass Spectrometry and Proteomics, Barczak, Wojciech, Carr, Simon M., Liu, Geng, Munro, Shonagh, Nicastri, Annalisa, Lee, Lian Ni, Hutchings, Claire, Ternette, Nicola, Klenerman, Paul, Kanapin, Alexander, Samsonova, Anastasia, and La Thangue, Nicholas B.

Published
2023

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