Cited by 49Pesticide Exposure and ToxicityParaquat toxicity studies and treatmentsPesticide and Herbicide Environmental Studies

Dig1 protects against cell death provoked by glyphosate-based herbicides in human liver cell lines

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Gasnier, Céline, Benachour, Nora, Clair, Emilie, Travert, Carine, Langlois, Frédéric, Laurant, Claire, Decroix-Laporte, Cécile, Séralini, Gilles-Eric·2010·Journal of Occupational Medicine and Toxicology

Abstract

BACKGROUND: Worldwide used pesticides containing different adjuvants like Roundup formulations, which are glyphosate-based herbicides, can provoke some in vivo toxicity and in human cells. These pesticides are commonly found in the environment, surface waters and as food residues of Roundup tolerant genetically modified plants. In order to know their effects on cells from liver, a major detoxification organ, we have studied their mechanism of action and possible protection by precise medicinal plant extracts called Dig1. METHODS: The cytotoxicity pathways of four formulations of glyphosate-based herbicides were studied using human hepatic cell lines HepG2 and Hep3B, known models to study xenobiotic effects. We monitored mitochondrial succinate dehydrogenase activity and caspases 3/7 for cell mortality and protection by Dig1, as well as cytochromes P450 1A1, 1A2, 3A4 and 2C9 and glutathione-S-transferase to approach the mechanism of actions. RESULTS: All the four Roundup formulations provoke liver cell death, with adjuvants having stronger effects than glyphosate alone. Hep3B are 3-5 times more sensitive over 48 h. Caspases 3/7 are greatly activated in HepG2 by Roundup at non-cytotoxic levels, and some apoptosis induction by Roundup is possible together with necrosis. CYP3A4 is specifically enhanced by Roundup at doses 400 times less than used in agriculture (2%). CYP1A2 is increased to a lesser extent together with glutathione-S-transferase (GST) down-regulation. Dig 1, non cytotoxic and not inducing caspases by itself, is able to prevent Roundup-induced cell death in a time-dependant manner with an important efficiency of up to 89%, within 48 h. In addition, we evidenced that it prevents Caspases 3/7 activation and CYP3A4 enhancement, and not GST reduction, but in turn it slightly inhibited CYP2C9 when added before Roundup. CONCLUSION: Roundup is able to provoke intracellular disruption in hepatic cell lines at different levels, but a mixture of medicinal plant extracts Dig1 can protect to some extent human cell lines against this pollutants. All this system constitutes a tool for studying liver intoxication and detoxification.

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Crossref · 10.1186/1745-6673-5-29

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  • The ultrastructural findings are consistent with the well-documented toxic effect of very low dilutions of R on apoptosis, mitochondrial function, and cell membrane degradation inducing necrosis of hepatocytes and other cell lines.

    “This is consistent with the well-documented toxic effect of very low dilutions of R on apoptosis, mitochondrial function, and cell membrane degradation inducing necrosis of hepatocytes, and other cell lines (Benachour and Seralini, 2009;Benachour et al., 2007;Gasnier et al., 2010;Peixoto, 2005).”

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Research works printed but not linked: 3

  1. Cox C Glyphosate Journal of Pesticide Reform 2004 24 10 15
  2. Wiebel FJ Lambiotte M Singh J Summer KH Wolff T Expression of carcinogen-metabolizing enzymes in continuous cultures of mammalian cells Biochemicals Basis of Chemical Carcinogenesis 1984 Raven Press, New York 77 88
  3. Hu C Kitts DD Dandelion (Taraxacum officinale) flower extract suppresses both reactive oxygen species and nitric oxide and prevents lipid oxidation in vitro Phytomedicine 2005 12 588 597 10.1016/j.phymed.2003.12.012 16121519 · DOI

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Authors
Gasnier, C., Benachour, N., Clair, E., Travert, C., Langlois, F., Laurant, C., Decroix-Laporte, C., & Séralini, G.-E.
Affiliations
Université de Caen Normandie (FR)
Venue
Journal of Occupational Medicine and Toxicology
Published
2010-10-27
Volume
5
Issue
1
Pages
29-29
ISSN
1745-6673 (ISSN-L)
OpenAlex
W2139673280
Cited by
49
References
50
Citations by year
2025: 3 · 2023: 3 · 2022: 3 · 2021: 5 · 2020: 3 · 2019: 2 · 2018: 6 · 2017: 2 · 2016: 4 · 2015: 5 · 2014: 4 · 2013: 1 · 2012: 5
FWCI
3.45
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Journal of Occupational Medicine and Toxicology (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • Fondation Denis Guichard
  • Région Normandie
Topics
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Pesticide Exposure and Toxicity
  • Health Sciences › Medicine › Surgery › Paraquat toxicity studies and treatments
  • Physical Sciences › Environmental Science › Pollution › Pesticide and Herbicide Environmental Studies
Keywords
glyphosate-based herbicides, Roundup, herbicide adjuvants, hepatotoxicity, hepatocyte death, apoptosis, necrosis, caspase-3/7 activation, CYP3A4, CYP1A2, glutathione S-transferase, medicinal plant extracts, HepG2 cells, Hep3B cells, xenobiotic detoxification, pesticide toxicity

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