Transcriptional profiling reveals ribosome biogenesis, microtubule dynamics and expression of specific lncrnas to be part of a common response to cell-penetrating peptides

Tomas Venit, Moataz Dowaidar, Maxime Gestin, Syed Raza Mahmood, Ülo Langel, Piergiorgio Percipalle

Research output: Contribution to journalArticlepeer-review

Abstract

Cell-penetrating peptides (CPPs) are short peptides that are able to efficiently penetrate cellular lipid bilayers. Although CPPs have been used as carriers in conjugation with certain cargos to target specific genes and pathways, how rationally designed CPPs per se affect global gene expression has not been investigated. Therefore, following time course treatments with 4 CPPs-penetratin, PepFect14, mtCPP1 and TP10, HeLa cells were transcriptionally profiled by RNA sequencing. Results from these analyses showed a time-dependent response to different CPPs, with specific sets of genes related to ribosome biogenesis, microtubule dynamics and long-noncoding RNAs being differentially expressed compared to untreated controls. By using an image-based high content phenotypic profiling platform we confirmed that differential gene expression in CPP-treated HeLa cells strongly correlates with changes in cellular phenotypes such as increased nucleolar size and dispersed microtubules, compatible with altered ribosome biogenesis and cell growth. Altogether these results suggest that cells respond to different cell penetrating peptides by alteration of specific sets of genes, which are possibly part of the common response to such stimulus.

Original languageEnglish (US)
Article number1567
Pages (from-to)1-21
Number of pages21
JournalBiomolecules
Volume10
Issue number11
DOIs
StatePublished - Nov 2020

Keywords

  • CPPs
  • Cell-penetrating peptides
  • Centrosome
  • LncRNA
  • Long noncoding RNA
  • Microtubule
  • MtCPP1
  • Penetratin
  • PepFect14
  • RRNA ribosome biogenesis
  • Ribosome
  • TP10

ASJC Scopus subject areas

  • Biochemistry
  • Molecular Biology

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