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09:32
Oral Bacterial Infection and Shedding in Drosophila melanogaster
Published on: May 31, 2018
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Bacterial infections and cancer
Daphne van Elsland1, Jacques Neefjes2
1Oncode Institute and Department of Cell and Chemical Biology, Leiden University Medical Center LUMC, Leiden, The Netherlands.
EMBO Reports
|October 24, 2018
Summary
Bacterial infections, often overlooked in cancer research, directly damage host cell DNA. This DNA damage disrupts cell signaling pathways, potentially contributing to tumor formation and cancer development.
Area of Science:
- Microbiology
- Oncology
- Molecular Biology
Background:
- Infections cause an estimated 20% of human tumors, primarily attributed to viruses.
- The direct role of bacteria in cancer formation has been largely overlooked, with tumor development often solely linked to inflammation.
- Epidemiological studies suggest links between bacterial infections and specific cancers, but the mechanisms remain unclear.
Purpose of the Study:
- To investigate the direct mechanisms by which bacteria contribute to cancer formation.
- To explore how bacterial components can induce host cell DNA damage.
- To understand how bacterial manipulations interfere with host cell signaling pathways crucial for cancer development.
Main Methods:
- Analysis of bacterial surface moieties.
- Investigation of bacterial protein toxins.
- Examination of bacterial effector proteins and their impact on host cell DNA.
Main Results:
- Bacterial surface moieties, toxins, and effector proteins can directly induce host cell DNA damage.
- This induced DNA damage interferes with critical host cell signaling pathways.
- Affected pathways include those regulating cell proliferation, apoptosis, differentiation, and immune signaling.
Conclusions:
- Bacteria can directly contribute to cancer formation by inducing host cell DNA damage.
- Bacterial manipulation of host cell signaling pathways plays a significant role in oncogenesis.
- Further research into bacterial involvement in cancer is warranted to explore novel therapeutic strategies.
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