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Fungus Associated with the “Curse of the Pharaoh” Reveals Molecules with Potential to Treat Cancer, According to a Study by the University of Pennsylvania
In 1922, archaeologist Howard Carter made history by opening the tomb of Pharaoh Tutankhamun in Egypt. Peeking through a small opening, he said he saw “wonderful things.” But soon after the discovery, a series of mysterious deaths among those involved in the excavations gave rise to the famous “curse of the pharaoh.”
Among the dead was the expedition’s financier, Lord Carnarvon, who died a few months later. Other team members also died in the following years. For a long time, it was believed that supernatural forces were involved in these deaths.
The most important thing is that modern science has brought a more plausible explanation. A toxic fungus called Aspergillus flavus was found in various ancient tombs, including that of Tutankhamun.
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This fungus can survive for thousands of years in sealed locations and releases dangerous spores when disturbed.
These spores cause severe respiratory infections, especially in people with weakened immune systems. A similar situation occurred in the 1970s in Poland when several scientists died after entering the tomb of Casimir IV. Again, Aspergillus flavus was identified as a possible cause.
But now, a hundred years after the “curse,” this fungus is at the center of a scientific discovery with the potential to save lives.
A New Weapon Against Cancer
Researchers at the University of Pennsylvania studied Aspergillus flavus in search of medicinal substances.
They discovered that it produces a special type of molecule called RiPP — an acronym in English for “ribosomally synthesized and post-translationally modified peptides.”
These molecules are created by cells and undergo chemical modifications to gain special functions. Thousands of RiPPs have already been found in bacteria, but few in fungi — until now.
The team analyzed several different strains of Aspergillus and found chemical clues indicating the presence of RiPPs. Aspergillus flavus stood out among the rest.
By disabling certain genes of the fungus, the scientists noticed that the desired compounds disappeared. This confirmed that the fungus was indeed the source of these molecules.
Birth of the Aspergimycins
The team faced difficulties in purifying the compounds but managed to isolate four unique RiPPs.
They exhibited a chemical structure formed by intertwined rings — something never seen before. The scientists named these new molecules “aspergimycins.”
These molecules were tested against human cancer cells. In some cases, they succeeded in inhibiting cell growth.
This indicates that aspergimycins may have the potential to become a treatment for certain types of cancer.
Another important step was discovering how these molecules enter the cells. Many promising substances fail due to their inability to penetrate tissues.
In the case of aspergimycins, entry was facilitated with the help of certain fats. This may aid in creating new, more effective medicines.
Interruption of the Cell Cycle
Tests also showed that aspergimycins block cell division. This is relevant because cancer spreads precisely through the uncontrolled division of cells.
The molecules target microtubules, internal structures that are essential in this multiplication process.
Most importantly, this blocking seems to affect only certain types of cells. This may reduce side effects, which are a common problem in traditional cancer treatments.
Even Greater Potential
Despite the advancement, scientists believe this is just the tip of the iceberg. They have already found similar genes in other fungi. This indicates that many more RiPPs with strong biological activities may yet be discovered.
The next step will be to test aspergimycins in other models before advancing to human trials.
If successful, these molecules could join the list of medications derived from fungi — like penicillin, which revolutionized medicine.
From Curse to Cure
For centuries, Aspergillus flavus has been feared for its deadly effect in ancient tombs. Now, this same fungus proves promising as a source of healing.
The transformation of a feared organism into a medical ally shows the value of scientific research.
The discovery reinforces how much nature still has to offer. Many substances with therapeutic power remain hidden in unexplored environments.
The task of scientists is to seek these clues and turn them into solutions for diseases that affect millions of people.
The fungus linked to the curse of the pharaoh now offers hope for cancer patients. An irony of history — and a victory of science over mystery.
With information from Terra.
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