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Updated: Jul 22, 2026

Organoids as Model for Infectious Diseases: Culture of Human and Murine Stomach Organoids and Microinjection of Helicobacter Pylori
Published on: November 12, 2015
Oncogenous micro-organisms are confined to Mycoplasmas and Helicobacter pylori
Abstract:
Among the various micro-organisms isolated from man's cancerous tissues including the blood of such patients several species were described as new to science. Their identity is being discussed and the conclusion made that none of the scientific names proposed as new for these micro-organisms can be utilized taxonomically. Aberrant red cells have been commonly confounded with some supposed blood parasites. Current research of micro-organisms suspected of playing a role in oncogenesis is confined to two categories of true or opportunistic pathogens: Mycoplasmas with respect to unspecified cancers and Helicobacter pylori in regard to stomach neoplasms.
Insights
Microorganisms claimed as new cancer-causing agents lack scientific validity. Current research focuses on Mycoplasmas for cancers and Helicobacter pylori for stomach tumors.
Area of Science:
- Microbiology
- Oncology
- Taxonomy
Background:
- Microorganisms have been investigated for their potential role in human cancers.
- Previous studies proposed new species isolated from cancerous tissues and blood.
Purpose of the Study:
- To evaluate the taxonomic validity of newly proposed scientific names for microorganisms isolated from human cancerous tissues.
- To clarify the current research landscape of microorganisms implicated in oncogenesis.
Main Methods:
- Review and analysis of scientific literature on microorganisms associated with cancer.
- Examination of taxonomic classifications and proposed scientific names.
Main Results:
- The scientific names proposed for newly identified microorganisms from cancerous tissues were found to be taxonomically unusable.
- Aberrant red blood cells were often misidentified as blood parasites.
- Current research on oncogenic microorganisms is limited to Mycoplasmas (general cancers) and Helicobacter pylori (stomach cancer).
Conclusions:
- The proposed scientific names for novel microorganisms from cancer patients lack taxonomic validity.
- Accurate identification of microorganisms is crucial, as artifacts like aberrant red cells can be mistaken for pathogens.
- Ongoing research focuses on specific pathogens like Mycoplasmas and Helicobacter pylori in relation to cancer development.
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