C.A.M(Xander)_de_Haan.bsky.social
@xdh.bsky.social
65 followers 96 following 17 posts
Molecular Virology, IAV, PMV, CoV, RSV, EEHV, Associate professor at Utrecht University.
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Reposted by C.A.M(Xander)_de_Haan.bsky.social
npariente.bsky.social
Respiratory infections reactivate dormant metastatic breast cancer cells in mouse lungs, correlating with evidence in humans that #SARS-CoV-2 infection increases the risk of cancer-related mortality & lung metastasis

😎 biology but double whammy for cancer patients

www.nature.com/articles/s41...
🧪
Respiratory viral infections awaken metastatic breast cancer cells in lungs - Nature
Mouse models show that respiratory infections from viruses such as influenza and SARS-CoV-2 can trigger metastasis of dormant breast cancer cells in the lungs, a finding supported by epidemiological d...
www.nature.com
Reposted by C.A.M(Xander)_de_Haan.bsky.social
dr-downes.bsky.social
Very excited to announce that my first, first author paper, is now on BioRxiv! In this paper we unambiguously show #COPII coated vesicles in unperturbed human cells for the very first time!!

Make my day and check it out!
www.biorxiv.org/content/10.1...

#Cryo-ET #TeamTomo #Cryo-CLEM ❄️🔬❄️🔬❄️🔬❄️🔬
xdh.bsky.social
New review paper from the influenza group
@utrechtvirology.bsky.social
together with Mengying Liu and Erik de Vries on virion motility of sialoglycan-cleaving respiratory viruses through mucus and on the surface cells in NPJ viruses @natureportfolio.nature.com
doi.org/10.1038/s442...
Virion motility of sialoglycan-cleaving respiratory viruses - npj Viruses
npj Viruses - Virion motility of sialoglycan-cleaving respiratory viruses
doi.org
Reposted by C.A.M(Xander)_de_Haan.bsky.social
joostsnijder.bsky.social
We sequenced the anti-RSV-F antibody 131-2a by mass spec and determined its epitope by cryoEM. New insights in postfusion specific binding and antigenic site I. Now published in ACS Infectious Diseases @pubs.acs.org.
pubs.acs.org/doi/10.1021/...
@xdh.bsky.social @hangryhobbit.bsky.social
xdh.bsky.social
Full article: Identification of β4GALNT2 as an anti-hPIV3 factor through genome-wide CRISPR/Cas9 library screening. Nice work by former PhD student Xuesheng Wu. Many thanks to our collaborators!
Reposted by C.A.M(Xander)_de_Haan.bsky.social
chlandalab.bsky.social
We are happy this work by Sarah Peterl et al. is out in EMBO J! It was an exciting collaborative effort of several groups in the SFB1129 consortium on pathogen replication and spread. Check out the correlated light and scanning EM method to study virus morphology changes during spread!
Reposted by C.A.M(Xander)_de_Haan.bsky.social
socialinfluenza.bsky.social
There's still time to submit your molecular biology abstracts to this year's #ESWI2025 meeting on #Influenza, #RSV and #SARSCoV2. The ESWI meetings are a brilliant way to see your work in context, as they consider these respiratory viruses all the way from molecular biology to policy...
eswinfluenza.bsky.social
#ESWI2025 🚀 Extra call for abstracts in Molecular Virology – now open!
🚨 Deadline is 31 July 2025 at 23:59 CET
📢 Don’t miss your chance to contribute — submit now!
➡️ eswiconference.org/abstract-sub...
Reposted by C.A.M(Xander)_de_Haan.bsky.social
kyleiridian.bsky.social
Eurosurveillanc : Human infections with Eurasian avian-like swine influenza virus detected by coincidence via routine respiratory surveillance systems, the Netherlands, 2020 to 2023

Dirk Eggink et al

www.eurosurveillance.org/content/10.2...
Reposted by C.A.M(Xander)_de_Haan.bsky.social
Reposted by C.A.M(Xander)_de_Haan.bsky.social
dimitridrekonja.bsky.social
Also - we eradicated rinderpest in 2010 (joining smallpox as only diseases eradicated).

Turns out fewer anti-vaxxers among cattle 🤦🏻‍♂️
infectiousdz.bsky.social
Measles likely came from cows (via rinderpest) around the 6th century BCE.

For 2,500 years, we didn’t evolve superhuman resistance—children just died. Real protection only came in the 1960s, with vaccines.

Our superpower isn’t evolving into superhumans. It’s outthinking pathogens.
Measles virus and rinderpest virus divergence dated to the sixth century BCE
Measles virus diverged from rinderpest virus in the sixth century BCE, indicating an early origin for human measles.
www.science.org
xdh.bsky.social
Next week I will move to the lab of Adolfo Garcia-Sastre at Mount Sinai for a three month sabbatical. Looking forward to meeting many old and new colleagues and friends and to visiting NYC itself!
Reposted by C.A.M(Xander)_de_Haan.bsky.social
joostsnijder.bsky.social
Time for the Dutch Annual Virology Symposium, in the beautiful Geertekerk in Utrecht. Stoked to present our work on antibody sequencing 😁
Reposted by C.A.M(Xander)_de_Haan.bsky.social
cidrap.bsky.social
Uganda’s Ebola Sudan outbreak appears stable

No transmission has been found outside of a single chain, and eight patients in treatment are stable.

www.cidrap.umn.edu/e...

Photo: NIAID/Flickr cc
Reposted by C.A.M(Xander)_de_Haan.bsky.social
socialinfluenza.bsky.social
Do you like doing experiments on influenza virus particles but want them to be super-squeaky clean? Or perhaps you'd like to work with filamentous influenza virions but don't know how? Jack Hirst has the protocol chapter for you: link.springer.com/protocol/10....
Purification of Influenza Virions
This chapter describes basic workflows for concentrating and for purifying influenza virions. It presents several ways in which ultracentrifugation can be used to concentrate influenza virions from th...
link.springer.com
xdh.bsky.social
Since the emergence of clade 2.3.4.4 H5 viruses, they have shown a remarkable ability to team up with other NA subtypes (and with N1 without a stalk deletion). This in contrast to the “old” H5. Presumably linked to changes in receptor binding. After N2, N6, and N8, we now find N9.
Reposted by C.A.M(Xander)_de_Haan.bsky.social
angierasmussen.bsky.social
This is bad news. It suggests reassortment of circulating H5N1 viruses with viruses containing N9 NA.

Although this indicates reassortment with avian viruses, it's still bad. Reassortment makes pandemics. The last 3/4 flu pandemics (and likely 1918 too) were reassortant viruses.