Cited by 112Genetically Modified Organisms ResearchNuclear Structure and FunctionCarcinogens and Genotoxicity Assessment

Ultrastructural Morphometrical and Immunocytochemical Analyses of Hepatocyte Nuclei from Mice Fed on Genetically Modified Soybean.

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Malatesta, Manuela, Caporaloni, Chiara, Gavaudan, Stefano, Rocchi, Marco B.L., Serafini, Sonja, Tiberi, Cinzia, Gazzanelli, Giancarlo·2002·Cell Structure and Function

Abstract

No direct evidence that genetically modified (GM) food may represent a possible danger for health has been reported so far; however, the scientific literature in this field is still quite poor. Therefore, we carried out an ultrastructural morphometrical and immunocytochemical study on hepatocytes from mice fed on GM soybean, in order to investigate eventual modifications of nuclear components of these cells involved in multiple metabolic pathways related to food processing. Our observations demonstrate significant modifications of some nuclear features in GM-fed mice. In particular, GM fed-mice show irregularly shaped nuclei, which generally represents an index of high metabolic rate, and a higher number of nuclear pores, suggestive of intense molecular trafficking. Moreover, the roundish nucleoli of control animals change in more irregular nucleoli with numerous small fibrillar centres and abundant dense fibrillar component in GM-fed mice, modifications typical of increased metabolic rate. Accordingly, nucleoplasmic (snRNPs and SC-35) and nucleolar (fibrillarin) splicing factors are more abundant in hepatocyte nuclei of GM-fed than in control mice. In conclusion, our data suggest that GM soybean intake can influence hepatocyte nuclear features in young and adult mice; however, the mechanisms responsible for such alterations remain unknown.

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Authors
Malatesta, M., Caporaloni, C., Gavaudan, S., Rocchi, M. B. L., Serafini, S., Tiberi, C., & Gazzanelli, G.
Affiliations
  • University of Urbino (IT)
  • Istituto Zooprofilattico Sperimentale dell'Umbria e delle Marche (IT)
Venue
Cell Structure and Function
Published
2002
Volume
27
Issue
4
Pages
173-180
ISSN
  • 0386-7196 (ISSN-L)
  • 1347-3700
OpenAlex
W2106517087
Cited by
112
References
29
Citations by year
2026: 1 · 2024: 1 · 2023: 1 · 2022: 13 · 2021: 1 · 2020: 1 · 2019: 2 · 2018: 4 · 2016: 4 · 2015: 7 · 2014: 6 · 2013: 9 · 2012: 4
FWCI
1.26
Type
journal article
Language
en
Open access
Locations
  • Cell Structure and Function (publishedVersion)
  • PubMed (publishedVersion)
  • CINECA IRIS Institutional Research information system (University of Urbino) (submittedVersion)
  • INFM-OAR (INFN Catania) (submittedVersion, other-oa)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Genetically Modified Organisms Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Nuclear Structure and Function
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Carcinogens and Genotoxicity Assessment
Keywords
transgenic soybean, hepatocyte nuclei, nuclear ultrastructure, nuclear morphometry, nuclear pores, nucleolus, fibrillarin, small nuclear ribonucleoproteins, splicing factors, metabolic rate, GM food safety, mice
MeSH terms
Aging, Alanine Transaminase, Animals, Aspartate Aminotransferases, Body Weight, Cell Nucleolus, Cell Nucleus, Chromosomal Proteins, Non-Histone, Female, Golgi Apparatus, Immunohistochemistry, Nuclear Envelope, Glycine max, Ribonucleoproteins, Small Nuclear, Endoplasmic Reticulum, Rough, Nuclear Pore, Secretory Vesicles, Hepatocytes, Food, Genetically Modified, Mice

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