Will Cancer Die from a Magic Rifle Bullet or From Magic Shotgun Pellets?

We dream of a magic bullet that can cure all cancer. But will all “cancer” continue to be seen as one unified disease, with potentially one common cure? Or will we see many diseases, many causes, and many cures? [The idea of a “magic bullet” against a disease was born from the great Paul Ehrlich who found one of the first effective antibiotics (not to be confused with the the more recent environmentalist Paul Ehrlich who is famous for losing his bet with the great Julian Simon).]

(p. D3) A new study, published [online on] Wednesday [Oct. 2, 2019] in the journal Nature, found that fungi can make their way deep into the pancreas, which sits behind your stomach and secretes digestive enzymes into your small intestine.

. . .

One particular fungus was the most abundant in the pancreas: a genus of Basidiomycota called Malassezia, which is typically found on the skin and scalp of animals and humans, and can cause skin irritation and dandruff.  . . .

The results show that Malassezia was not only abundant in mice that got pancreatic tumors, it was also present in extremely high numbers in samples from pancreatic cancer patients, said Dr. Berk Aykut, a postdoctoral researcher in Dr. Miller’s lab.

. . .

Administering an antifungal drug got rid of the fungi in mice and kept tumors from developing. And when the treated mice again received the yeast, their tumors started growing once more — an indication, Dr. Aykut said, that the fungal cells were driving the tumors’ growth.

. . .

The new study also sheds light on how fungi in the pancreas may drive the growth of tumors. The fungi activate an immune system protein called mannose-binding lectin, which then triggers a cascade of signals known to cause inflammation. When the researchers compromised the ability of the lectin protein to do its job, the cancer stopped progressing and the mice survived for longer.

For the full story see:

Knvul Sheikh. “Fungi May Have a Role In Pancreatic Cancer.” The New York Times (Tuesday, October 8, 2019 [sic]): D3.

(Note: ellipses, and bracketed words and date, added.)

(Note: the online version of the story has the date Oct. 3, 2019 [sic], and has the title “In the Pancreas, Common Fungi May Drive Cancer.” Where the wording of the versions differs, the passages quoted above follow the more detailed online version.)

The study in Nature mentioned above is:

Aykut, Berk, Smruti Pushalkar, Ruonan Chen, Qianhao Li, Raquel Abengozar, Jacqueline I. Kim, Sorin A. Shadaloey, Dongling Wu, Pamela Preiss, Narendra Verma, Yuqi Guo, Anjana Saxena, Mridula Vardhan, Brian Diskin, Wei Wang, Joshua Leinwand, Emma Kurz, Juan A. Kochen Rossi, Mautin Hundeyin, Constantinos Zambrinis, Xin Li, Deepak Saxena, and George Miller. “The Fungal Mycobiome Promotes Pancreatic Oncogenesis Via Activation of MBL.” Nature 574, no. 7777 (Oct. 10, 2019): 264-67.

Leave a Reply

Your email address will not be published. Required fields are marked *