Home > Publications database > Modulation of cellular transcriptome and proteome composition by azidohomoalanine-implications on click chemistry-based secretome analysis. > print

001     276243
005     20240229162337.0
024 7 _ |a 10.1007/s00109-023-02333-4
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024 7 _ |a 0023-2173
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024 7 _ |a 0941-0198
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024 7 _ |a 0946-2716
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024 7 _ |a 1432-1440
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037 _ _ |a DKFZ-2023-01045
041 _ _ |a English
082 _ _ |a 610
100 1 _ |a Kirschner, Friederike
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245 _ _ |a Modulation of cellular transcriptome and proteome composition by azidohomoalanine-implications on click chemistry-based secretome analysis.
260 _ _ |a New York, NY
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336 7 _ |a article
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500 _ _ |a 2023 Jul;101(7):855-867 / DKTK Mainz
520 _ _ |a The analysis of the secretome provides important information on proteins defining intercellular communication and the recruitment and behavior of cells in specific tissues. Especially in the context of tumors, secretome data can support decisions for diagnosis and therapy. The mass spectrometry-based analysis of cell-conditioned media is widely used for the unbiased characterization of cancer secretomes in vitro. Metabolic labeling using azide-containing amino acid analogs in combination with click chemistry facilitates this type of analysis in the presence of serum, preventing serum starvation-induced effects. The modified amino acid analogs, however, are less efficiently incorporated into newly synthesized proteins and may perturb protein folding. Combining transcriptome and proteome analysis, we elucidate in detail the effects of metabolic labeling with the methionine analog azidohomoalanine (AHA) on gene and protein expression. Our data reveal that 15-39% of the proteins detected in the secretome displayed changes in transcript and protein expression induced by AHA labeling. Gene Ontology (GO) analyses indicate that metabolic labeling using AHA leads to induction of cellular stress and apoptosis-related pathways and provide first insights on how this affects the composition of the secretome on a global scale. KEY MESSAGES: Azide-containing amino acid analogs affect gene expression profiles. Azide-containing amino acid analogs influence cellular proteome. Azidohomoalanine labeling induces cellular stress and apoptotic pathways. Secretome consists of proteins with dysregulated expression profiles.
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650 _ 7 |a Metabolic labeling
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650 _ 7 |a Proteome
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650 _ 7 |a Secretome
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650 _ 7 |a Transcriptome
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650 _ 7 |a Tumor micromilieu
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700 1 _ |a Arnold-Schild, Danielle
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700 1 _ |a Leps, Christian
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700 1 _ |a Łącki, Mateusz Krzysztof
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700 1 _ |a Klein, Matthias
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700 1 _ |a Chen, Yannic
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700 1 _ |a Ludt, Annekathrin
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700 1 _ |a Marini, Federico
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700 1 _ |a Kücük, Can
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700 1 _ |a Stein, Lara
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700 1 _ |a Distler, Ute
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700 1 _ |a Sielaff, Malte
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700 1 _ |a Michna, Thomas
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700 1 _ |a Riegel, Kristina
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700 1 _ |a Rajalingam, Krishnaraj
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700 1 _ |a Bopp, Tobias
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700 1 _ |a Tenzer, Stefan
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700 1 _ |a Schild, Hansjörg
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773 _ _ |a 10.1007/s00109-023-02333-4
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