The Effect of Human and Bovine Milk Osteopontin on Intestinal Caco-2 Cells: A Transcriptome Comparison

Osteopontin (OPN) is a multifunctional protein abundantly present in human milk, whereas the concentration is significantly lower in bovine milk. Human and bovine milk OPN are structurally similar and both proteins resist gastric digestion and reach the intestines in a bioactive form. Intervention s...

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Main Authors: Brian Christensen, Albert J. Buitenhuis, Lotte N. Jacobsen, Marie S. Ostenfeld, Esben S. Sørensen
Format: Article
Language:English
Published: MDPI AG 2023-02-01
Series:Nutrients
Subjects:
Online Access:https://www.mdpi.com/2072-6643/15/5/1166
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author Brian Christensen
Albert J. Buitenhuis
Lotte N. Jacobsen
Marie S. Ostenfeld
Esben S. Sørensen
author_facet Brian Christensen
Albert J. Buitenhuis
Lotte N. Jacobsen
Marie S. Ostenfeld
Esben S. Sørensen
author_sort Brian Christensen
collection DOAJ
description Osteopontin (OPN) is a multifunctional protein abundantly present in human milk, whereas the concentration is significantly lower in bovine milk. Human and bovine milk OPN are structurally similar and both proteins resist gastric digestion and reach the intestines in a bioactive form. Intervention studies have indicated the beneficial effects of supplementing infant formula with bovine milk OPN and several in vivo and in vitro studies have shown that bovine milk OPN positively influences intestinal development. To investigate the functional relationship, we compared the effect of simulated gastrointestinal digested human and bovine milk OPN on gene expression in Caco-2 cells. After incubation, total RNA was extracted and sequenced and transcripts were mapped to the human genome. Human and bovine milk OPN regulated the expression of 239 and 322 genes, respectively. A total of 131 genes were similarly regulated by the OPNs. As a control, a whey protein fraction with a high content of alpha-lactalbumin had a very limited transcriptional impact on the cells. Enrichment data analysis showed that biological processes related to the ubiquitin system, DNA binding, and genes associated with transcription and transcription control pathways were affected by the OPNs. Collectively, this study shows that human and bovine milk OPN have a significant and highly comparable effect on the intestinal transcriptome.
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spelling doaj.art-677abec239e4475bb4bc9efa25d980832023-11-17T08:20:31ZengMDPI AGNutrients2072-66432023-02-01155116610.3390/nu15051166The Effect of Human and Bovine Milk Osteopontin on Intestinal Caco-2 Cells: A Transcriptome ComparisonBrian Christensen0Albert J. Buitenhuis1Lotte N. Jacobsen2Marie S. Ostenfeld3Esben S. Sørensen4Department of Molecular Biology and Genetics, Aarhus University, DK-8000 Aarhus, DenmarkCenter for Quantitative Genetics and Genomics, Aarhus University, DK-8000 Aarhus, DenmarkArla Foods Ingredients Group P/S, DK-8260 Viby J, DenmarkArla Foods Ingredients Group P/S, DK-8260 Viby J, DenmarkDepartment of Molecular Biology and Genetics, Aarhus University, DK-8000 Aarhus, DenmarkOsteopontin (OPN) is a multifunctional protein abundantly present in human milk, whereas the concentration is significantly lower in bovine milk. Human and bovine milk OPN are structurally similar and both proteins resist gastric digestion and reach the intestines in a bioactive form. Intervention studies have indicated the beneficial effects of supplementing infant formula with bovine milk OPN and several in vivo and in vitro studies have shown that bovine milk OPN positively influences intestinal development. To investigate the functional relationship, we compared the effect of simulated gastrointestinal digested human and bovine milk OPN on gene expression in Caco-2 cells. After incubation, total RNA was extracted and sequenced and transcripts were mapped to the human genome. Human and bovine milk OPN regulated the expression of 239 and 322 genes, respectively. A total of 131 genes were similarly regulated by the OPNs. As a control, a whey protein fraction with a high content of alpha-lactalbumin had a very limited transcriptional impact on the cells. Enrichment data analysis showed that biological processes related to the ubiquitin system, DNA binding, and genes associated with transcription and transcription control pathways were affected by the OPNs. Collectively, this study shows that human and bovine milk OPN have a significant and highly comparable effect on the intestinal transcriptome.https://www.mdpi.com/2072-6643/15/5/1166transcriptomeCaco-2 cell linehumanbovineosteopontingastrointestinal digestion
spellingShingle Brian Christensen
Albert J. Buitenhuis
Lotte N. Jacobsen
Marie S. Ostenfeld
Esben S. Sørensen
The Effect of Human and Bovine Milk Osteopontin on Intestinal Caco-2 Cells: A Transcriptome Comparison
Nutrients
transcriptome
Caco-2 cell line
human
bovine
osteopontin
gastrointestinal digestion
title The Effect of Human and Bovine Milk Osteopontin on Intestinal Caco-2 Cells: A Transcriptome Comparison
title_full The Effect of Human and Bovine Milk Osteopontin on Intestinal Caco-2 Cells: A Transcriptome Comparison
title_fullStr The Effect of Human and Bovine Milk Osteopontin on Intestinal Caco-2 Cells: A Transcriptome Comparison
title_full_unstemmed The Effect of Human and Bovine Milk Osteopontin on Intestinal Caco-2 Cells: A Transcriptome Comparison
title_short The Effect of Human and Bovine Milk Osteopontin on Intestinal Caco-2 Cells: A Transcriptome Comparison
title_sort effect of human and bovine milk osteopontin on intestinal caco 2 cells a transcriptome comparison
topic transcriptome
Caco-2 cell line
human
bovine
osteopontin
gastrointestinal digestion
url https://www.mdpi.com/2072-6643/15/5/1166
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