Monday, March 8, 2021

Now, US scientists developing nasal spray to prevent Covid-19

If successful, the technology could provide people with around six months of protection from a single dose.

Other News

DAP says no party-to-party cooperation with Umno for GE15

DAP secretary-general Lim Guan Eng says any cooperation will be on an ad hoc basis, such as in efforts to convene Parliament.

Hong Kong leader praises China’s plan to install ‘patriots’

Legislation to vet all election candidates in Hong Kong is currently being discussed by China's rubber-stamp parliament and is expected to be adopted on Thursday.

Malaysia catat 1,529 kes baru Covid-19

Trend jangkitan wabak Covid-19 terus menunjukkan penurunan.

1,529 new cases as numbers stay under 2,000 mark for third day

Selangor continues to record the most cases with 726.

Rebranded Jasa to be multiracial, not political, minister says

Communications minister Saifuddin Abdullah says the programmes implemented by the department will include every race and level of society.

Scientists at the University of Pennsylvania and the biotech firm Regeneron are investigating whether technology developed for gene therapy can be used to make a nasal spray that will prevent infection with the new coronavirus.

The idea is to use a weakened virus as a delivery truck to carry genetic instructions to cells within the nose and the throat, which will in turn create powerful antibodies to stop SARS-CoV-2 from invading our bodies.

“The advantage of our approach is that you don’t need a competent immune system for this to be effective,” James Wilson, a professor of medicine at Penn who is leading the project, told AFP.

The technology is currently being tested in animals and Wilson believes that, if successful, it could provide people with around six months of protection from a single dose, sprayed up the nose, and therefore complement vaccines that could soon be approved.

Wilson is a pioneer of gene therapy – delivering genetic code into a patient’s cells to correct for defects and treat disease.

His research team discovered that the Adeno-Associated Virus (AAV) group of viruses, which infect both humans and other primates but aren’t known to cause disease, can be engineered to ferry healthy DNA into cells.

This approach led in 2019 to the approval of Zolgensma, the first drug for the treatment of spinal muscular atrophy, and today AAVs are being investigated for dozens of more possible applications.

Wilson was contacted by the US government in February to see if he and his lab could use the technology against Covid-19.

But it wasn’t until Regeneron developed two promising lab-made antibodies against the coronavirus, which bind to a surface protein of the pathogen and stop it from invading our cells, that his team could move ahead.

Regeneron’s antibodies are themselves in clinical testing but have received emergency approval for patients with mild or moderate Covid-19 who are at high-risk of getting severe disease – and were notably used recently to treat US President Donald Trump.

Researchers are hoping that the nasal spray could be squirted through the nostrils, enter nasal epithelial cells, and hijack their protein-making machinery so that they make Regeneron’s antibodies.

Normally, only immune cells create antibodies, which makes the new idea a particularly innovative approach.

Since the coronavirus enters the lungs through the nasal passage, the spray could halt the infection in its tracks.

What’s more, AAVs cause only a mild immune response so the side effects could be less severe than the frontrunner vaccines, which work by training the immune system to recognize a key protein of the virus.

Penn and Regeneron hope to complete their animal studies by January, before applying to the Food and Drug Administration to begin human trials.

Follow us on Telegram for the latest updates: https://t.me/malaysianow

Subscribe to our newsletter

To be updated with all the latest news and analyses.

Related Articles

1,529 new cases as numbers stay under 2,000 mark for third day

Selangor continues to record the most cases with 726.

The paradox of Israel’s moral legitimacy

The two-state solution which remains elusive under the watch of Prime Minister Benjamin Netanyahu shows that the triumphalism from the normalisation deals is illusory.

Pandemic could mean millions more child marriages, Unicef warns

A new study cites school closures, economic stress, service disruptions, pregnancy and parental deaths due to the pandemic.

Israel re-opens restaurants, bars with 40% of country fully vaccinated

Israel launched its green pass programme last month, allowing controlled numbers of people with proof of full vaccination or who have recovered from Covid-19 to enter gyms, pools and other facilities.

Health experts move to ease fears over ‘Made in China’ vaccine

Concerns have been raised over its relatively low efficacy rate and its origins in a country known for cheap production.