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1. • Group I

     • Most pathogens (bacteria, viruses, fungi, and parasites) associated with human cancers are categorized as Group I human carcinogens by the International Agency for Research on Cancer, IARC.
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     Pathogens and Carcinogenesis: A Review

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   Are biological agents 'carcinogenic to humans'?

   • In February, 2009, 36 scientists from 16 countries met at the International Agency for Research on Cancer (IARC) to reassess the carcinogenicity of the biological agents classified as “carcinogenic to humans” (Group 1) and to identify additional tumour sites and mechanisms of carcinogenesis ( Table 1, Table 2 ).

   A review of human carcinogens—Part B: biological agents

   www.thelancet.com/journals/lanonc/article/PIIS1470-2045(09)70096-8/fulltext

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   How do infectious agents cause carcinogenesis?

   • Infectious agents cause carcinogenesis largely via three mechanisms [ 15 ]. The first mechanism is via persistent infection which gives rise to inflammation and cell damage, where accumulative cell damage leads to mutations and carcinogenesis.

   Pathogens and Carcinogenesis: A Review - PMC - National Center for

   www.ncbi.nlm.nih.gov/pmc/articles/PMC8232153/

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   Are cancer bacteria carcinogenic?

   • Cancer bacteria are bacteria infectious organisms that are known or suspected to cause cancer. While cancer-associated bacteria have long been considered to be opportunistic (i.e., infecting healthy tissues after cancer has already established itself), there is some evidence that bacteria may be directly carcinogenic.

   Carcinogenic bacteria - Wikipedia

   en.wikipedia.org/wiki/Carcinogenic_bacteria

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3. www.ncbi.nlm.nih.gov › pmc › articlesPathogens and Carcinogenesis: A Review - PMC

   www.ncbi.nlm.nih.gov › pmc › articles

   Jun 15, 2021 · Most pathogens (bacteria, viruses, fungi, and parasites) associated with human cancers are categorized as Group I human carcinogens by the International Agency for Research on Cancer, IARC. These pathogens cause carcinogenesis via three known mechanisms: persistent infection that cause inflammation and DNA damage, initiation of oncogene ...

   • Table 1

     An increasing number of cancer cases has been reported...

   • PubMed

     The pathogens and cancers described are Helicobacter pylori...

4. www.thelancet.com › journals › lanoncA review of human carcinogens—Part B: biological agents

   www.thelancet.com › journals › lanonc

   In February, 2009, 36 scientists from 16 countries met at the International Agency for Research on Cancer (IARC) to reassess the carcinogenicity of the biological agents classified as “carcinogenic to humans” (Group 1) and to identify additional tumour sites and mechanisms of carcinogenesis (Table 1, Table 2). These assessments will be ...

   • Author: Véronique Bouvard, Robert Baan, Kurt Straif, Yann Grosse, Béatrice Secretan, Fatiha El Ghissassi, La...

   • Publish Year: 2009

5. www.ncbi.nlm.nih.gov › pmc › articlesViruses and Bacteria Associated with Cancer: An Overview

   www.ncbi.nlm.nih.gov › pmc › articles

   May 31, 2021 · Several experimental data both in vitro and in vivo, have demonstrated multistage models of carcinogenic processes in several organ systems, such as skin, liver, urinary bladder, lung, kidney, intestine, mammary gland, and pancreas.

   • Author: Davide Zella, Robert C Gallo

   • Publish Year: 2021

6. www.cancer.org › bacteriaBacteria that Can Lead to Cancer | American Cancer Society

   www.cancer.org › bacteria

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   Helicobacter pylori. Stomach cancer is not common in the United States, but it’s one of the more common types of cancer worldwide. Long-term infection of the stomach with Helicobacter pylori (H pylori) can cause ulcers. It can also inflame and damage the inner layer of the stomach.

7. pubmed.ncbi.nlm.nih.gov › 34203649Pathogens and Carcinogenesis: A Review - PubMed

   pubmed.ncbi.nlm.nih.gov › 34203649

   Jun 15, 2021 · The pathogens and cancers described are Helicobacter pylori (gastric cancer), Epstein-Barr virus (gastric cancer and lymphoma), Hepatitis B and C viruses (liver cancer), Aspergillus spp. (liver cancer), Opisthorchis viverrine (bile duct cancer), Clonorchis sinensis (bile duct cancer), Fusobacterium nucleatum (colorectal cancer), Schistosoma haem...

   • Author: Muhammad Nur Adam Hatta, Ezanee Azlina Mohamad Hanif, Siok-Fong Chin, Hui-Min Neoh

   • Publish Year: 2021

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9. en.wikipedia.org › wiki › Carcinogenic_bacteriaCarcinogenic bacteria - Wikipedia

   en.wikipedia.org › wiki › Carcinogenic_bacteria

   • Cached

   Evidence has shown that a specific stage in cancer can be associated with bacteria that is pathogenic. The strongest evidence to date involves the bacterium H. pylori and its role in gastric cancer. Oncoviruses are viral agents that are similarly suspected of causing cancer.

10. onlinelibrary.wiley.com › doi › 10Microbial Carcinogens - The American Cancer Society's ...

    onlinelibrary.wiley.com › doi › 10

    Dec 15, 2017 · Human microbial carcinogens represent a diverse group of viruses, bacteria, and parasitic worms. They may act directly by integrating their genetic material into the host disrupting normal cellular functions or indirectly via inflammation or immune suppression.