Don’t Assume That the Only Good Virus is a Dead Virus.
We’re all virused out – sick to death of hearing and talking and dealing with the current pandemic.
Which got me thinking – I’ll bet not all
viruses are detrimental to human health. So here’s my short layman’s report
about a few of…
The Good Viruses
Virotherapy is an expanding field that may
enable us use viruses to treat diseases.
More than 9 million people around the world die
from cancer every year. Chemotherapy, radiation therapy, and surgery are
successful therapies, but all have significant side effects because they all kill
off a significant number of non-cancerous cells during the course of treatment –
as well as seeing a fairly high incidence of recurrence after successful
treatment.
Over the years research has shown cancer
regression in patients suffering from unrelated viral infections. The search
for alternative cancer treatments has led to research on those viruses - from a number
of different families.
Collectively known as oncolytic viruses, they
have the potential do things that older treatment modalities can not.
With an existing tropism for tumors (ie: they are attracted to the tumours). They have
demonstrated an ability to kill cancer cells selectively. In 2015, the first
oncolytic virus therapy based on a herpes virus was approved by the US Food and
Drug Administration and European Medicines Agency for the treatment of melanoma
lesions in the skin and lymph nodes It
is quite likely that a number of oncolytic virus therapies will soon be approved
– significantly increasing the treatment arsenal for a broad range of deadly
cancers.
Scientists are also studying the virome, the part of the microbiome concerned with viruses, particularly the gut virome, home of countless bactierophages. Increased use of Phage therapy could eventually supplant the rampant antibiotic use that has put us at risk for the horrors that will potential emerge from our growing state of antibiotic resistance.
Whereas antibiotics kill off millions of “good
bacteria”, Phage therapies will be able to target bacteria within a well
defined and narrow range.
Information from:
The 2015 Annual Review of Virology - https://www.annualreviews.org/doi/full/10.1146/annurev-vi-04-071217-100011
Medical News Today https://www.medicalnewstoday.com/articles/327167#Friends-for-life
Comments
Post a Comment