The Global Migration of Cancer Viruses: A 50000-Year Trail from Neanderthals to Andean Mummies
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Day 36 (The History of Cancer in 365 Days Series)
The Pathogen Archive: Oncogenic Continuity from Neanderthals to Andean Mummies
Research into the history of cancer has become a vast laboratory extending beyond modern humans to our extinct relatives and the earliest migration routes thousands of years ago. Identifying pathogens in ancient DNA records completely invalidates the idea that cancer is a disruption confined to modernity. This molecular evidence shows how deeply oncogenic factors are rooted in hominin evolution and how they have become an inseparable part of our biological history.
Related topic: What Should We Understand from the 2022 Nobel Prize in Physiology or Medicine?
The Neanderthal Legacy: Viral Burden from a Common Ancestor
Neanderthal remains found in Chagyrskaya Cave in Russia's Siberian region have pushed the history of viruses with cancer-causing potential back 50000 years. Traces of adenovirus, herpesvirus and papillomavirus detected in these ancient remains demonstrate that biological agents modern medicine identifies as oncogenic have persisted since the common ancestor of Neanderthals and Homo sapiens.
CANCER TRIGGERS IN ANCIENT GENOMES
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1Epstein-Barr (EBV)-Like Strains: Traces of this viral family, which increases the risk of lymphoma and nasopharyngeal carcinoma, represented an active pathogen burden in hominin populations tens of thousands of years ago.
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2The Evolution of Hepatitis B (HBV): Ancient HBV lineages identified in European samples from the Neolithic period show that liver cancer risk was not confined to the transition to agricultural society but has persisted since hunter-gatherer communities.
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3Viral Integration: Ancient DNA data demonstrate that the ability of viruses to integrate into the host genome and trigger mutations has remained a constant evolutionary strategy.
Silent Witnesses of the Andes: HTLV-1 and the Migration of Leukemia
South America's naturally preserved mummies have allowed us to redraw the global migration map of viruses. HTLV-1 detected in the bone marrow of a 1500-year-old mummy found in Chile's Atacama Desert reveals that cancer epidemiology is, in fact, a story of migration.
These findings show that risk factors for leukemia and certain skin cancers did not arrive on the continent with colonizers; instead, they were carried there by the first migration waves tens of thousands of years ago. The continuity of viruses along these ancient migration routes is among the most concrete evidence of the time depth of our struggle with cancer.
DROZDOGAN ACADEMY NOTE
These pathogen traces, stretching from Neanderthals to mummies, demonstrate that cancer recognizes no biological boundaries and has crossed geographical barriers alongside humans. The Asian origins of the leukemia virus detected in a Chilean mummy remind us that medical history is, in fact, a history of evolution and migration. Ancient data provide an invaluable perspective for identifying pathogens' evolutionary weaknesses and anticipating future oncological risks.
References
- Briones, M., et al. (2024). Scientists discover oldest known human viruses in 50,000-year-old Neanderthal remains. Archaeology Magazine.
- Li, et al. (1999). The presence of ancient human T-cell lymphotropic virus type I provirus DNA in an Andean mummy. PubMed.
- Perotti, A., et al. (2021). Ancient Human Genomes and Environmental DNA from the Cement Attaching 2,000-Year-Old Head Lice Nits. Molecular Biology and Evolution.
- Krause, J., et al. (2018). Stone age hepatitis B virus decoded. Max-Planck-Gesellschaft.
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