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Mycoplasma infections and different human carcinomas
1Department of Biochemistry and Molecular Biology, Beijing Institute for Cancer Research and Peking University School of Oncology.No.1 Da Hong Luo Chang Street, Western District, Beijing 100034, China. 6201@us.sina.com
World Journal of Gastroenterology
|January 31, 2002
Summary
Mycoplasma infection is highly correlated with various human carcinomas, including gastric, colon, esophageal, lung, and breast cancers. Further research is needed to understand the oncogenic mechanisms of mycoplasma.
Area of Science:
- Oncology
- Microbiology
- Pathology
Background:
- Mycoplasma species are known opportunistic pathogens.
- The role of mycoplasma infection in human carcinogenesis is not well-established.
- Investigating potential links between microbial infections and cancer development is crucial.
Purpose of the Study:
- To investigate the association between mycoplasma infection and human carcinomas.
- To determine the prevalence of Mycoplasma hyorhinis in various cancer types.
- To compare infection rates in cancerous versus non-cancerous tissues.
Main Methods:
- Immunohistochemistry using monoclonal antibody PD4 to detect Mycoplasma hyorhinis.
- Polymerase Chain Reaction (PCR) to confirm mycoplasma DNA in positive samples.
- Analysis of paraffin-embedded carcinoma tissues from gastric, colon, esophageal, lung, and breast cancers, as well as gliomas.
Main Results:
- Mycoplasma hyorhinis was detected in 56% of gastric carcinomas and 55.1% of colon carcinomas.
- Significantly higher infection rates were observed in gastric cancer compared to gastritis, gastric ulcer, and intestinal metaplasia.
- Higher differentiation in gastric and colon cancers correlated with increased mycoplasma infection rates.
Conclusions:
- A significant correlation exists between mycoplasma infection and various human carcinomas.
- Mycoplasma infection may play a role in the development of certain cancers.
- The specific mechanisms by which mycoplasma might contribute to oncogenesis require further investigation.