The declassified CIA document is a 1951 English translation and intelligence summary of Professor V.V. Alpatov’s October 1950 article published in the Soviet journal Priroda (Vol. XXXVII, No. 10, pp. 22-27, Leningrad). Titled “Biochemical Resemblance Between Endoparasites and Malignant Tumors”, the piece highlights observed biochemical and metabolic similarities between internal parasites (endoparasites, such as helminths/worms like those causing bilharzia/Schistosoma) and malignant cancer tumors.
Key Points from the Study (as Summarized in the CIA Translation):
- Similar Living Conditions and Growth Environment: Both endoparasites and malignant tumors thrive in comparable, often hostile internal host environments. They grow and exist under similar physiological conditions inside the body.
- Shared Metabolic Features:
- Both rely heavily on anaerobic metabolism (energy production without oxygen), which suits low-oxygen (hypoxic) environments common to intestinal parasites and many solid tumors.
- They accumulate large reserves of glycogen (a stored form of glucose/energy) in their tissues.
- Both exhibit an “amphibiotic” or “aerofermentor” type of metabolism — a hybrid that allows survival in fluctuating oxygen levels while favoring fermentation-like processes.
- Biochemical Parallels: The author points to similarities in protein/enzyme profiles, energy storage, and overall biochemical behavior that allow both to parasitize/host tissues effectively and evade normal host controls.
- Implications for Treatment:
- Certain chemical compounds originally developed or tested against parasites showed activity against tumors in experiments.
- Examples mentioned include:
- Myracyl D — effective against bilharzia (Schistosoma parasites) and reportedly against cancerous growths.
- Guanozolo — blocked nucleic acid synthesis in tumors (tested in mice).
- Atebrin (quinacrine) — showed differential toxicity, possibly due to enantiomer differences, targeting shared metabolic/receptor traits.
- The similarities suggest that drugs designed for parasitic infections might be repurposed or inspire approaches against cancer due to overlapping vulnerabilities.
Overall Conclusion in the Article:
Alpatov argues these resemblances are not coincidental but reflect fundamental biochemical kinship or convergent adaptations. He proposes that understanding parasite metabolism could inform cancer research, potentially leading to shared therapeutic strategies. The piece frames tumors as behaving somewhat “parasitically” in the body, though it does not claim parasites directly cause cancer or that cancer is literally a parasite.
Important Modern Context: This is a 75-year-old Soviet-era hypothesis based on mid-20th-century biochemistry. Contemporary oncology overwhelmingly attributes most cancers to genetic mutations, environmental factors, viruses (e.g., HPV), and other causes — not parasites in the general case. Some parasites (like certain flukes) are linked to specific cancers via chronic inflammation, but the broad metabolic analogy here is historical and has not led to mainstream parasite-based cancer cures. Recent viral interest often exaggerates it to claim hidden “parasite cures” for cancer (e.g., via drugs like ivermectin or fenbendazole), but the document itself makes no such definitive claim.
The full declassified document (only 2-3 pages) is available here for reading: