Vipin M. Vashishtha Profile picture
Sep 2, 2024 6 tweets 3 min read Read on X
A novel treatment for blocking SARS-CoV-2 entry into cells!

Researchers discovered #UNI418, a compound that effectively prevents the penetration of coronavirus. This compound works by regulating dielectric homeostasis, thereby inhibiting the virus's entry into human cells 1/ Image
SARS-CoV-2 enters cells through endocytosis, a process whereby cells absorb material from outside by engulfing it w/ their cell membrane. They demonstrated that inhibiting specific proteins, PIKfyve & PIP5K1C during this process can prevent viral invasion. 2/ Image
Genomic homeostasis is protective system that secures genetic information & allows it to be utilized when needed.
The team established #UNI418 supports genomic homeostasis while simultaneously preventing the infiltration and proliferation of coronaviruses within cells 3/
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Existing treatments generally work by inhibiting viral proteins to prevent proliferation, but they are often less effective against mutant strains of the virus. 4/ Image
This study represents the first evidence that #UNI418 can disrupt the virus's infection process, highlighting its potential as a treatment for mutant coronaviruses and other viral infections. 5/ Image
There is a high likelihood that UNI418 can develop into a new treatment paradigm that effectively blocks various viral infections. 6/6

nature.com/articles/s1227…
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More from @vipintukur

Jun 26
A meta-analysis from Egypt of 125 studies involving over 4 million COVID survivors shows that months to years after infection, fatigue was the most common symptom at 43%. Around 27% of people experience cognitive impairment after COVID infection. 1/ Image
Further, 28% experienced memory issues, 24% sleep disorders, 20% headaches, 16% dizziness, 14% depression, and 13% anxiety, with significant variability depending on follow‑up time, disease severity, sex, and BMI. 2/ Image
Neurological symptoms are common & persistent in COVID survivors. This study highlights significant burden these symptoms place on individuals, emphasizing the need for well-resourced multidisciplinary healthcare services to support post-COVID recovery. 3/3
Read 4 tweets
Jun 24
A new review on neuroimmune pathophysiology of #LongCOVID explores how SARS-CoV-2 can cause lasting neurological symptoms through a combination of direct infection, immune dysregulation, and persistent inflammation. 1/ Image
Key mechanisms include viral antigen persistence, autoimmunity, blood–brain barrier disruption, neurotransmitter imbalances, and glial cell dysfunction. The authors link these processes to cognitive impairment, fatigue, dysautonomia, and other Long COVID symptoms. 2/ Image
Despite the perception that COVID-19 is now a mild disease, there is overwhelming evidence indicating that SARS-CoV-2 infection is capable of producing widespread post-acute sequelae in a significant percentage of infections. 3/ Image
Read 4 tweets
Jun 19
I think, therefore I age!

As people get older, a growing population of cells starts to consume more energy — perhaps because the cells accumulate damage that leads them to rev up processes such as inflammation. 1/ Image
An emerging hypothesis suggests that the brain accommodates these energy-hogging ‘senescent cells’ by stripping resources from other biological processes, which ultimately results in outward signs of ageing, such as greying hair or a reduction in muscle mass. 2/
It’s one example of a growing understanding of how our brains control ageing and how psychological stress can accelerate the process at a molecular level. 3/ Image
Read 5 tweets
Jun 17
A NEW study found that the SARS-CoV-2 nonstructural protein 15 (nsp15) helps the virus hide from the immune system in human lung and nasal cells. The nsp15 endoribonuclease is important in promoting virus replication and influencing disease severity. 1/ Image
SARS2 variants lacking this activity exhibit impaired replication & cause milder disease, highlighting nsp15 as a key virulence factor. This underscores the importance of nsp15’s endoribonuclease activity in both promoting virus replication & influencing disease severity. 2/ Image
The viral variants lacking nsp15 endoribonuclease activity elicited higher innate immune responses and exhibited reduced replication in human stem cell–derived lung alveolar type II epithelial cells, as well as in the lungs of infected hamsters. 3/ Image
Read 5 tweets
Jun 16
Researchers developed a 23-amino acid peptide that mimics ACE2 and effectively binds the SARS-CoV-2 spike protein, preventing viral entry. 1/ Image
The peptide demonstrated potent antiviral activity against both the original and Omicron strains, with a therapeutic index greater than 20, indicating strong potential for therapeutic use. 2/ Image
Moreover, future viruses from this family of coronaviruses may likely use ACE2 as their host cell receptor, as recently demonstrated in the MERS Virus of bats and, therefore, the ACE2 decoy therapeutic may have future applications as well. 3/ Image
Read 4 tweets
Jun 5
A NEW preprint found that submaximal exercise in people with #LongCOVID caused large microclots to fragment into smaller microclots and this then triggered increases in inflammatory and vascular injury markers. 1/ Image
The breakdown of large microclots, rather than clearing them from circulation, was linked to reduced oxygen uptake and heightened inflammation. 2/ Image
The data suggest that while the immune system tries to control inflammation caused by microclot fragmentation after physical exertion, its compensatory mechanisms are inadequate or failing. 3/ Image
Read 6 tweets

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