What is the parasitic theory of cancer?

The parasitic theory of cancer suggests that cancers stem from parasitic organisms or infections that trigger uncontrolled cell growth. Initially proposed by researchers like Dr. R. Park in the late 19th century, this theory challenges the idea that cancer solely arises from genetic mutations.

Instead, it argues that chromosomal disruptions, like aneuploidy, are key drivers, shaping cancer cells into distinct parasitic "species" that rely on the host for resources while causing harm.

Certain parasitic infections, such as liver flukes and malaria, have been linked to an elevated cancer risk, likely due to factors like chronic inflammation and tissue damage inflicted by the parasites. Proponents of this theory believe that targeting chromosomal disruptions, rather than just mutations, could pave the way for novel cancer diagnostics and treatments. While controversial, this theory offers an alternative perspective on cancer as evolving, parasitic entities within the body.

The parasitic theory of cancer has evolved since its inception, gaining recognition and refinement throughout the 20th and 21st centuries. It has contributed to our understanding of cancer biology, highlighting the intricate relationship between cancer cells and the host organism.

While cancer cells aren't true parasites like worms or bacteria, likening their behavior to parasitism underscores the complex nature of cancer and its impact on the body's systems.